diff options
Diffstat (limited to 'src/core/hle')
60 files changed, 4284 insertions, 3164 deletions
diff --git a/src/core/hle/kernel/client_session.cpp b/src/core/hle/kernel/client_session.cpp index 6d66276bc..5ab204b9b 100644 --- a/src/core/hle/kernel/client_session.cpp +++ b/src/core/hle/kernel/client_session.cpp @@ -47,7 +47,8 @@ ResultVal<std::shared_ptr<ClientSession>> ClientSession::Create(KernelCore& kern return MakeResult(std::move(client_session)); } -ResultCode ClientSession::SendSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory) { +ResultCode ClientSession::SendSyncRequest(std::shared_ptr<Thread> thread, + Core::Memory::Memory& memory) { // Keep ServerSession alive until we're done working with it. if (!parent->Server()) { return ERR_SESSION_CLOSED_BY_REMOTE; diff --git a/src/core/hle/kernel/client_session.h b/src/core/hle/kernel/client_session.h index d15b09554..c5f760d7d 100644 --- a/src/core/hle/kernel/client_session.h +++ b/src/core/hle/kernel/client_session.h @@ -12,7 +12,7 @@ union ResultCode; -namespace Memory { +namespace Core::Memory { class Memory; } @@ -42,7 +42,7 @@ public: return HANDLE_TYPE; } - ResultCode SendSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory); + ResultCode SendSyncRequest(std::shared_ptr<Thread> thread, Core::Memory::Memory& memory); bool ShouldWait(const Thread* thread) const override; diff --git a/src/core/hle/kernel/errors.h b/src/core/hle/kernel/errors.h index 8097b3863..29bfa3621 100644 --- a/src/core/hle/kernel/errors.h +++ b/src/core/hle/kernel/errors.h @@ -14,6 +14,7 @@ constexpr ResultCode ERR_MAX_CONNECTIONS_REACHED{ErrorModule::Kernel, 7}; constexpr ResultCode ERR_INVALID_CAPABILITY_DESCRIPTOR{ErrorModule::Kernel, 14}; constexpr ResultCode ERR_INVALID_SIZE{ErrorModule::Kernel, 101}; constexpr ResultCode ERR_INVALID_ADDRESS{ErrorModule::Kernel, 102}; +constexpr ResultCode ERR_OUT_OF_RESOURCES{ErrorModule::Kernel, 103}; constexpr ResultCode ERR_OUT_OF_MEMORY{ErrorModule::Kernel, 104}; constexpr ResultCode ERR_HANDLE_TABLE_FULL{ErrorModule::Kernel, 105}; constexpr ResultCode ERR_INVALID_ADDRESS_STATE{ErrorModule::Kernel, 106}; diff --git a/src/core/hle/kernel/hle_ipc.cpp b/src/core/hle/kernel/hle_ipc.cpp index d65dae3ae..91d94025c 100644 --- a/src/core/hle/kernel/hle_ipc.cpp +++ b/src/core/hle/kernel/hle_ipc.cpp @@ -282,19 +282,19 @@ ResultCode HLERequestContext::WriteToOutgoingCommandBuffer(Thread& thread) { return RESULT_SUCCESS; } -std::vector<u8> HLERequestContext::ReadBuffer(int buffer_index) const { +std::vector<u8> HLERequestContext::ReadBuffer(std::size_t buffer_index) const { std::vector<u8> buffer; - const bool is_buffer_a{BufferDescriptorA().size() > std::size_t(buffer_index) && + const bool is_buffer_a{BufferDescriptorA().size() > buffer_index && BufferDescriptorA()[buffer_index].Size()}; auto& memory = Core::System::GetInstance().Memory(); if (is_buffer_a) { - ASSERT_MSG(BufferDescriptorA().size() > std::size_t(buffer_index), + ASSERT_MSG(BufferDescriptorA().size() > buffer_index, "BufferDescriptorA invalid buffer_index {}", buffer_index); buffer.resize(BufferDescriptorA()[buffer_index].Size()); memory.ReadBlock(BufferDescriptorA()[buffer_index].Address(), buffer.data(), buffer.size()); } else { - ASSERT_MSG(BufferDescriptorX().size() > std::size_t(buffer_index), + ASSERT_MSG(BufferDescriptorX().size() > buffer_index, "BufferDescriptorX invalid buffer_index {}", buffer_index); buffer.resize(BufferDescriptorX()[buffer_index].Size()); memory.ReadBlock(BufferDescriptorX()[buffer_index].Address(), buffer.data(), buffer.size()); @@ -304,13 +304,13 @@ std::vector<u8> HLERequestContext::ReadBuffer(int buffer_index) const { } std::size_t HLERequestContext::WriteBuffer(const void* buffer, std::size_t size, - int buffer_index) const { + std::size_t buffer_index) const { if (size == 0) { LOG_WARNING(Core, "skip empty buffer write"); return 0; } - const bool is_buffer_b{BufferDescriptorB().size() > std::size_t(buffer_index) && + const bool is_buffer_b{BufferDescriptorB().size() > buffer_index && BufferDescriptorB()[buffer_index].Size()}; const std::size_t buffer_size{GetWriteBufferSize(buffer_index)}; if (size > buffer_size) { @@ -321,13 +321,13 @@ std::size_t HLERequestContext::WriteBuffer(const void* buffer, std::size_t size, auto& memory = Core::System::GetInstance().Memory(); if (is_buffer_b) { - ASSERT_MSG(BufferDescriptorB().size() > std::size_t(buffer_index), + ASSERT_MSG(BufferDescriptorB().size() > buffer_index, "BufferDescriptorB invalid buffer_index {}", buffer_index); ASSERT_MSG(BufferDescriptorB()[buffer_index].Size() >= size, "BufferDescriptorB buffer_index {} is not large enough", buffer_index); memory.WriteBlock(BufferDescriptorB()[buffer_index].Address(), buffer, size); } else { - ASSERT_MSG(BufferDescriptorC().size() > std::size_t(buffer_index), + ASSERT_MSG(BufferDescriptorC().size() > buffer_index, "BufferDescriptorC invalid buffer_index {}", buffer_index); ASSERT_MSG(BufferDescriptorC()[buffer_index].Size() >= size, "BufferDescriptorC buffer_index {} is not large enough", buffer_index); @@ -337,17 +337,17 @@ std::size_t HLERequestContext::WriteBuffer(const void* buffer, std::size_t size, return size; } -std::size_t HLERequestContext::GetReadBufferSize(int buffer_index) const { - const bool is_buffer_a{BufferDescriptorA().size() > std::size_t(buffer_index) && +std::size_t HLERequestContext::GetReadBufferSize(std::size_t buffer_index) const { + const bool is_buffer_a{BufferDescriptorA().size() > buffer_index && BufferDescriptorA()[buffer_index].Size()}; if (is_buffer_a) { - ASSERT_MSG(BufferDescriptorA().size() > std::size_t(buffer_index), + ASSERT_MSG(BufferDescriptorA().size() > buffer_index, "BufferDescriptorA invalid buffer_index {}", buffer_index); ASSERT_MSG(BufferDescriptorA()[buffer_index].Size() > 0, "BufferDescriptorA buffer_index {} is empty", buffer_index); return BufferDescriptorA()[buffer_index].Size(); } else { - ASSERT_MSG(BufferDescriptorX().size() > std::size_t(buffer_index), + ASSERT_MSG(BufferDescriptorX().size() > buffer_index, "BufferDescriptorX invalid buffer_index {}", buffer_index); ASSERT_MSG(BufferDescriptorX()[buffer_index].Size() > 0, "BufferDescriptorX buffer_index {} is empty", buffer_index); @@ -355,15 +355,15 @@ std::size_t HLERequestContext::GetReadBufferSize(int buffer_index) const { } } -std::size_t HLERequestContext::GetWriteBufferSize(int buffer_index) const { - const bool is_buffer_b{BufferDescriptorB().size() > std::size_t(buffer_index) && +std::size_t HLERequestContext::GetWriteBufferSize(std::size_t buffer_index) const { + const bool is_buffer_b{BufferDescriptorB().size() > buffer_index && BufferDescriptorB()[buffer_index].Size()}; if (is_buffer_b) { - ASSERT_MSG(BufferDescriptorB().size() > std::size_t(buffer_index), + ASSERT_MSG(BufferDescriptorB().size() > buffer_index, "BufferDescriptorB invalid buffer_index {}", buffer_index); return BufferDescriptorB()[buffer_index].Size(); } else { - ASSERT_MSG(BufferDescriptorC().size() > std::size_t(buffer_index), + ASSERT_MSG(BufferDescriptorC().size() > buffer_index, "BufferDescriptorC invalid buffer_index {}", buffer_index); return BufferDescriptorC()[buffer_index].Size(); } diff --git a/src/core/hle/kernel/hle_ipc.h b/src/core/hle/kernel/hle_ipc.h index 050ad8fd7..af3330297 100644 --- a/src/core/hle/kernel/hle_ipc.h +++ b/src/core/hle/kernel/hle_ipc.h @@ -179,10 +179,11 @@ public: } /// Helper function to read a buffer using the appropriate buffer descriptor - std::vector<u8> ReadBuffer(int buffer_index = 0) const; + std::vector<u8> ReadBuffer(std::size_t buffer_index = 0) const; /// Helper function to write a buffer using the appropriate buffer descriptor - std::size_t WriteBuffer(const void* buffer, std::size_t size, int buffer_index = 0) const; + std::size_t WriteBuffer(const void* buffer, std::size_t size, + std::size_t buffer_index = 0) const; /* Helper function to write a buffer using the appropriate buffer descriptor * @@ -194,7 +195,8 @@ public: */ template <typename ContiguousContainer, typename = std::enable_if_t<!std::is_pointer_v<ContiguousContainer>>> - std::size_t WriteBuffer(const ContiguousContainer& container, int buffer_index = 0) const { + std::size_t WriteBuffer(const ContiguousContainer& container, + std::size_t buffer_index = 0) const { using ContiguousType = typename ContiguousContainer::value_type; static_assert(std::is_trivially_copyable_v<ContiguousType>, @@ -205,10 +207,10 @@ public: } /// Helper function to get the size of the input buffer - std::size_t GetReadBufferSize(int buffer_index = 0) const; + std::size_t GetReadBufferSize(std::size_t buffer_index = 0) const; /// Helper function to get the size of the output buffer - std::size_t GetWriteBufferSize(int buffer_index = 0) const; + std::size_t GetWriteBufferSize(std::size_t buffer_index = 0) const; template <typename T> std::shared_ptr<T> GetCopyObject(std::size_t index) { diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp index 014d647cf..7655382fa 100644 --- a/src/core/hle/kernel/kernel.cpp +++ b/src/core/hle/kernel/kernel.cpp @@ -18,15 +18,20 @@ #include "core/core.h" #include "core/core_timing.h" #include "core/core_timing_util.h" +#include "core/device_memory.h" #include "core/hardware_properties.h" #include "core/hle/kernel/client_port.h" #include "core/hle/kernel/errors.h" #include "core/hle/kernel/handle_table.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/memory/memory_layout.h" +#include "core/hle/kernel/memory/memory_manager.h" +#include "core/hle/kernel/memory/slab_heap.h" #include "core/hle/kernel/physical_core.h" #include "core/hle/kernel/process.h" #include "core/hle/kernel/resource_limit.h" #include "core/hle/kernel/scheduler.h" +#include "core/hle/kernel/shared_memory.h" #include "core/hle/kernel/synchronization.h" #include "core/hle/kernel/thread.h" #include "core/hle/kernel/time_manager.h" @@ -110,6 +115,7 @@ struct KernelCore::Impl { InitializePhysicalCores(); InitializeSystemResourceLimit(kernel); + InitializeMemoryLayout(); InitializeThreads(); InitializePreemption(); } @@ -154,12 +160,17 @@ struct KernelCore::Impl { system_resource_limit = ResourceLimit::Create(kernel); // If setting the default system values fails, then something seriously wrong has occurred. - ASSERT(system_resource_limit->SetLimitValue(ResourceType::PhysicalMemory, 0x200000000) + ASSERT(system_resource_limit->SetLimitValue(ResourceType::PhysicalMemory, 0x100000000) .IsSuccess()); ASSERT(system_resource_limit->SetLimitValue(ResourceType::Threads, 800).IsSuccess()); ASSERT(system_resource_limit->SetLimitValue(ResourceType::Events, 700).IsSuccess()); ASSERT(system_resource_limit->SetLimitValue(ResourceType::TransferMemory, 200).IsSuccess()); ASSERT(system_resource_limit->SetLimitValue(ResourceType::Sessions, 900).IsSuccess()); + + if (!system_resource_limit->Reserve(ResourceType::PhysicalMemory, 0) || + !system_resource_limit->Reserve(ResourceType::PhysicalMemory, 0x60000)) { + UNREACHABLE(); + } } void InitializeThreads() { @@ -237,6 +248,57 @@ struct KernelCore::Impl { return result; } + void InitializeMemoryLayout() { + // Initialize memory layout + constexpr Memory::MemoryLayout layout{Memory::MemoryLayout::GetDefaultLayout()}; + constexpr std::size_t hid_size{0x40000}; + constexpr std::size_t font_size{0x1100000}; + constexpr std::size_t irs_size{0x8000}; + constexpr std::size_t time_size{0x1000}; + constexpr PAddr hid_addr{layout.System().StartAddress()}; + constexpr PAddr font_pa{layout.System().StartAddress() + hid_size}; + constexpr PAddr irs_addr{layout.System().StartAddress() + hid_size + font_size}; + constexpr PAddr time_addr{layout.System().StartAddress() + hid_size + font_size + irs_size}; + + // Initialize memory manager + memory_manager = std::make_unique<Memory::MemoryManager>(); + memory_manager->InitializeManager(Memory::MemoryManager::Pool::Application, + layout.Application().StartAddress(), + layout.Application().EndAddress()); + memory_manager->InitializeManager(Memory::MemoryManager::Pool::Applet, + layout.Applet().StartAddress(), + layout.Applet().EndAddress()); + memory_manager->InitializeManager(Memory::MemoryManager::Pool::System, + layout.System().StartAddress(), + layout.System().EndAddress()); + + hid_shared_mem = Kernel::SharedMemory::Create( + system.Kernel(), system.DeviceMemory(), nullptr, + {hid_addr, hid_size / Memory::PageSize}, Memory::MemoryPermission::None, + Memory::MemoryPermission::Read, hid_addr, hid_size, "HID:SharedMemory"); + font_shared_mem = Kernel::SharedMemory::Create( + system.Kernel(), system.DeviceMemory(), nullptr, + {font_pa, font_size / Memory::PageSize}, Memory::MemoryPermission::None, + Memory::MemoryPermission::Read, font_pa, font_size, "Font:SharedMemory"); + irs_shared_mem = Kernel::SharedMemory::Create( + system.Kernel(), system.DeviceMemory(), nullptr, + {irs_addr, irs_size / Memory::PageSize}, Memory::MemoryPermission::None, + Memory::MemoryPermission::Read, irs_addr, irs_size, "IRS:SharedMemory"); + time_shared_mem = Kernel::SharedMemory::Create( + system.Kernel(), system.DeviceMemory(), nullptr, + {time_addr, time_size / Memory::PageSize}, Memory::MemoryPermission::None, + Memory::MemoryPermission::Read, time_addr, time_size, "Time:SharedMemory"); + + // Allocate slab heaps + user_slab_heap_pages = std::make_unique<Memory::SlabHeap<Memory::Page>>(); + + // Initialize slab heaps + constexpr u64 user_slab_heap_size{0x3de000}; + user_slab_heap_pages->Initialize( + system.DeviceMemory().GetPointer(Core::DramMemoryMap::SlabHeapBase), + user_slab_heap_size); + } + std::atomic<u32> next_object_id{0}; std::atomic<u64> next_kernel_process_id{Process::InitialKIPIDMin}; std::atomic<u64> next_user_process_id{Process::ProcessIDMin}; @@ -271,6 +333,16 @@ struct KernelCore::Impl { std::bitset<Core::Hardware::NUM_CPU_CORES> registered_core_threads; std::mutex register_thread_mutex; + // Kernel memory management + std::unique_ptr<Memory::MemoryManager> memory_manager; + std::unique_ptr<Memory::SlabHeap<Memory::Page>> user_slab_heap_pages; + + // Shared memory for services + std::shared_ptr<Kernel::SharedMemory> hid_shared_mem; + std::shared_ptr<Kernel::SharedMemory> font_shared_mem; + std::shared_ptr<Kernel::SharedMemory> irs_shared_mem; + std::shared_ptr<Kernel::SharedMemory> time_shared_mem; + // System context Core::System& system; }; @@ -437,4 +509,52 @@ Core::EmuThreadHandle KernelCore::GetCurrentEmuThreadID() const { return impl->GetCurrentEmuThreadID(); } +Memory::MemoryManager& KernelCore::MemoryManager() { + return *impl->memory_manager; +} + +const Memory::MemoryManager& KernelCore::MemoryManager() const { + return *impl->memory_manager; +} + +Memory::SlabHeap<Memory::Page>& KernelCore::GetUserSlabHeapPages() { + return *impl->user_slab_heap_pages; +} + +const Memory::SlabHeap<Memory::Page>& KernelCore::GetUserSlabHeapPages() const { + return *impl->user_slab_heap_pages; +} + +Kernel::SharedMemory& KernelCore::GetHidSharedMem() { + return *impl->hid_shared_mem; +} + +const Kernel::SharedMemory& KernelCore::GetHidSharedMem() const { + return *impl->hid_shared_mem; +} + +Kernel::SharedMemory& KernelCore::GetFontSharedMem() { + return *impl->font_shared_mem; +} + +const Kernel::SharedMemory& KernelCore::GetFontSharedMem() const { + return *impl->font_shared_mem; +} + +Kernel::SharedMemory& KernelCore::GetIrsSharedMem() { + return *impl->irs_shared_mem; +} + +const Kernel::SharedMemory& KernelCore::GetIrsSharedMem() const { + return *impl->irs_shared_mem; +} + +Kernel::SharedMemory& KernelCore::GetTimeSharedMem() { + return *impl->time_shared_mem; +} + +const Kernel::SharedMemory& KernelCore::GetTimeSharedMem() const { + return *impl->time_shared_mem; +} + } // namespace Kernel diff --git a/src/core/hle/kernel/kernel.h b/src/core/hle/kernel/kernel.h index c4f78ab71..83de1f542 100644 --- a/src/core/hle/kernel/kernel.h +++ b/src/core/hle/kernel/kernel.h @@ -8,6 +8,7 @@ #include <string> #include <unordered_map> #include <vector> +#include "core/hle/kernel/memory/memory_types.h" #include "core/hle/kernel/object.h" namespace Core { @@ -23,6 +24,12 @@ struct EventType; namespace Kernel { +namespace Memory { +class MemoryManager; +template <typename T> +class SlabHeap; +} // namespace Memory + class AddressArbiter; class ClientPort; class GlobalScheduler; @@ -31,6 +38,7 @@ class PhysicalCore; class Process; class ResourceLimit; class Scheduler; +class SharedMemory; class Synchronization; class Thread; class TimeManager; @@ -147,6 +155,42 @@ public: /// Register the current thread as a non CPU core thread. void RegisterHostThread(); + /// Gets the virtual memory manager for the kernel. + Memory::MemoryManager& MemoryManager(); + + /// Gets the virtual memory manager for the kernel. + const Memory::MemoryManager& MemoryManager() const; + + /// Gets the slab heap allocated for user space pages. + Memory::SlabHeap<Memory::Page>& GetUserSlabHeapPages(); + + /// Gets the slab heap allocated for user space pages. + const Memory::SlabHeap<Memory::Page>& GetUserSlabHeapPages() const; + + /// Gets the shared memory object for HID services. + Kernel::SharedMemory& GetHidSharedMem(); + + /// Gets the shared memory object for HID services. + const Kernel::SharedMemory& GetHidSharedMem() const; + + /// Gets the shared memory object for font services. + Kernel::SharedMemory& GetFontSharedMem(); + + /// Gets the shared memory object for font services. + const Kernel::SharedMemory& GetFontSharedMem() const; + + /// Gets the shared memory object for IRS services. + Kernel::SharedMemory& GetIrsSharedMem(); + + /// Gets the shared memory object for IRS services. + const Kernel::SharedMemory& GetIrsSharedMem() const; + + /// Gets the shared memory object for Time services. + Kernel::SharedMemory& GetTimeSharedMem(); + + /// Gets the shared memory object for Time services. + const Kernel::SharedMemory& GetTimeSharedMem() const; + private: friend class Object; friend class Process; diff --git a/src/core/hle/kernel/memory/address_space_info.cpp b/src/core/hle/kernel/memory/address_space_info.cpp new file mode 100644 index 000000000..27fae05e7 --- /dev/null +++ b/src/core/hle/kernel/memory/address_space_info.cpp @@ -0,0 +1,118 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +// This file references various implementation details from Atmosphère, an open-source firmware for +// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX. + +#include <array> + +#include "common/assert.h" +#include "core/hle/kernel/memory/address_space_info.h" + +namespace Kernel::Memory { + +namespace { + +enum : u64 { + Size_1_MB = 0x100000, + Size_2_MB = 2 * Size_1_MB, + Size_128_MB = 128 * Size_1_MB, + Size_1_GB = 0x40000000, + Size_2_GB = 2 * Size_1_GB, + Size_4_GB = 4 * Size_1_GB, + Size_6_GB = 6 * Size_1_GB, + Size_64_GB = 64 * Size_1_GB, + Size_512_GB = 512 * Size_1_GB, + Invalid = std::numeric_limits<u64>::max(), +}; + +// clang-format off +constexpr std::array<AddressSpaceInfo, 13> AddressSpaceInfos{{ + { 32 /*bit_width*/, Size_2_MB /*addr*/, Size_1_GB - Size_2_MB /*size*/, AddressSpaceInfo::Type::Is32Bit, }, + { 32 /*bit_width*/, Size_1_GB /*addr*/, Size_4_GB - Size_1_GB /*size*/, AddressSpaceInfo::Type::Small64Bit, }, + { 32 /*bit_width*/, Invalid /*addr*/, Size_1_GB /*size*/, AddressSpaceInfo::Type::Heap, }, + { 32 /*bit_width*/, Invalid /*addr*/, Size_1_GB /*size*/, AddressSpaceInfo::Type::Alias, }, + { 36 /*bit_width*/, Size_128_MB /*addr*/, Size_2_GB - Size_128_MB /*size*/, AddressSpaceInfo::Type::Is32Bit, }, + { 36 /*bit_width*/, Size_2_GB /*addr*/, Size_64_GB - Size_2_GB /*size*/, AddressSpaceInfo::Type::Small64Bit, }, + { 36 /*bit_width*/, Invalid /*addr*/, Size_6_GB /*size*/, AddressSpaceInfo::Type::Heap, }, + { 36 /*bit_width*/, Invalid /*addr*/, Size_6_GB /*size*/, AddressSpaceInfo::Type::Alias, }, + { 39 /*bit_width*/, Size_128_MB /*addr*/, Size_512_GB - Size_128_MB /*size*/, AddressSpaceInfo::Type::Large64Bit, }, + { 39 /*bit_width*/, Invalid /*addr*/, Size_64_GB /*size*/, AddressSpaceInfo::Type::Is32Bit }, + { 39 /*bit_width*/, Invalid /*addr*/, Size_6_GB /*size*/, AddressSpaceInfo::Type::Heap, }, + { 39 /*bit_width*/, Invalid /*addr*/, Size_64_GB /*size*/, AddressSpaceInfo::Type::Alias, }, + { 39 /*bit_width*/, Invalid /*addr*/, Size_2_GB /*size*/, AddressSpaceInfo::Type::Stack, }, +}}; +// clang-format on + +constexpr bool IsAllowedIndexForAddress(std::size_t index) { + return index < std::size(AddressSpaceInfos) && AddressSpaceInfos[index].GetAddress() != Invalid; +} + +constexpr std::size_t + AddressSpaceIndices32Bit[static_cast<std::size_t>(AddressSpaceInfo::Type::Count)]{ + 0, 1, 0, 2, 0, 3, + }; + +constexpr std::size_t + AddressSpaceIndices36Bit[static_cast<std::size_t>(AddressSpaceInfo::Type::Count)]{ + 4, 5, 4, 6, 4, 7, + }; + +constexpr std::size_t + AddressSpaceIndices39Bit[static_cast<std::size_t>(AddressSpaceInfo::Type::Count)]{ + 9, 8, 8, 10, 12, 11, + }; + +constexpr bool IsAllowed32BitType(AddressSpaceInfo::Type type) { + return type < AddressSpaceInfo::Type::Count && type != AddressSpaceInfo::Type::Large64Bit && + type != AddressSpaceInfo::Type::Stack; +} + +constexpr bool IsAllowed36BitType(AddressSpaceInfo::Type type) { + return type < AddressSpaceInfo::Type::Count && type != AddressSpaceInfo::Type::Large64Bit && + type != AddressSpaceInfo::Type::Stack; +} + +constexpr bool IsAllowed39BitType(AddressSpaceInfo::Type type) { + return type < AddressSpaceInfo::Type::Count && type != AddressSpaceInfo::Type::Small64Bit; +} + +} // namespace + +u64 AddressSpaceInfo::GetAddressSpaceStart(std::size_t width, AddressSpaceInfo::Type type) { + const std::size_t index{static_cast<std::size_t>(type)}; + switch (width) { + case 32: + ASSERT(IsAllowed32BitType(type)); + ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices32Bit[index])); + return AddressSpaceInfos[AddressSpaceIndices32Bit[index]].GetAddress(); + case 36: + ASSERT(IsAllowed36BitType(type)); + ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices36Bit[index])); + return AddressSpaceInfos[AddressSpaceIndices36Bit[index]].GetAddress(); + case 39: + ASSERT(IsAllowed39BitType(type)); + ASSERT(IsAllowedIndexForAddress(AddressSpaceIndices39Bit[index])); + return AddressSpaceInfos[AddressSpaceIndices39Bit[index]].GetAddress(); + } + UNREACHABLE(); +} + +std::size_t AddressSpaceInfo::GetAddressSpaceSize(std::size_t width, AddressSpaceInfo::Type type) { + const std::size_t index{static_cast<std::size_t>(type)}; + switch (width) { + case 32: + ASSERT(IsAllowed32BitType(type)); + return AddressSpaceInfos[AddressSpaceIndices32Bit[index]].GetSize(); + case 36: + ASSERT(IsAllowed36BitType(type)); + return AddressSpaceInfos[AddressSpaceIndices36Bit[index]].GetSize(); + case 39: + ASSERT(IsAllowed39BitType(type)); + return AddressSpaceInfos[AddressSpaceIndices39Bit[index]].GetSize(); + } + UNREACHABLE(); +} + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/address_space_info.h b/src/core/hle/kernel/memory/address_space_info.h new file mode 100644 index 000000000..cc9a6421e --- /dev/null +++ b/src/core/hle/kernel/memory/address_space_info.h @@ -0,0 +1,54 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +// This file references various implementation details from Atmosphère, an open-source firmware for +// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX. + +#pragma once + +#include "common/common_funcs.h" +#include "common/common_types.h" + +namespace Kernel::Memory { + +class AddressSpaceInfo final : NonCopyable { +public: + enum class Type : u32 { + Is32Bit = 0, + Small64Bit = 1, + Large64Bit = 2, + Heap = 3, + Stack = 4, + Alias = 5, + Count, + }; + +private: + std::size_t bit_width{}; + std::size_t addr{}; + std::size_t size{}; + Type type{}; + +public: + static u64 GetAddressSpaceStart(std::size_t width, Type type); + static std::size_t GetAddressSpaceSize(std::size_t width, Type type); + + constexpr AddressSpaceInfo(std::size_t bit_width, std::size_t addr, std::size_t size, Type type) + : bit_width{bit_width}, addr{addr}, size{size}, type{type} {} + + constexpr std::size_t GetWidth() const { + return bit_width; + } + constexpr std::size_t GetAddress() const { + return addr; + } + constexpr std::size_t GetSize() const { + return size; + } + constexpr Type GetType() const { + return type; + } +}; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/memory_block.h b/src/core/hle/kernel/memory/memory_block.h new file mode 100644 index 000000000..e11043b60 --- /dev/null +++ b/src/core/hle/kernel/memory/memory_block.h @@ -0,0 +1,318 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +// This file references various implementation details from Atmosphère, an open-source firmware for +// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX. + +#pragma once + +#include "common/alignment.h" +#include "common/assert.h" +#include "common/common_types.h" +#include "core/hle/kernel/memory/memory_types.h" +#include "core/hle/kernel/svc_types.h" + +namespace Kernel::Memory { + +enum class MemoryState : u32 { + None = 0, + Mask = 0xFFFFFFFF, // TODO(bunnei): This should probable be 0xFF + All = ~None, + + FlagCanReprotect = (1 << 8), + FlagCanDebug = (1 << 9), + FlagCanUseIpc = (1 << 10), + FlagCanUseNonDeviceIpc = (1 << 11), + FlagCanUseNonSecureIpc = (1 << 12), + FlagMapped = (1 << 13), + FlagCode = (1 << 14), + FlagCanAlias = (1 << 15), + FlagCanCodeAlias = (1 << 16), + FlagCanTransfer = (1 << 17), + FlagCanQueryPhysical = (1 << 18), + FlagCanDeviceMap = (1 << 19), + FlagCanAlignedDeviceMap = (1 << 20), + FlagCanIpcUserBuffer = (1 << 21), + FlagReferenceCounted = (1 << 22), + FlagCanMapProcess = (1 << 23), + FlagCanChangeAttribute = (1 << 24), + FlagCanCodeMemory = (1 << 25), + + FlagsData = FlagCanReprotect | FlagCanUseIpc | FlagCanUseNonDeviceIpc | FlagCanUseNonSecureIpc | + FlagMapped | FlagCanAlias | FlagCanTransfer | FlagCanQueryPhysical | + FlagCanDeviceMap | FlagCanAlignedDeviceMap | FlagCanIpcUserBuffer | + FlagReferenceCounted | FlagCanChangeAttribute, + + FlagsCode = FlagCanDebug | FlagCanUseIpc | FlagCanUseNonDeviceIpc | FlagCanUseNonSecureIpc | + FlagMapped | FlagCode | FlagCanQueryPhysical | FlagCanDeviceMap | + FlagCanAlignedDeviceMap | FlagReferenceCounted, + + FlagsMisc = FlagMapped | FlagReferenceCounted | FlagCanQueryPhysical | FlagCanDeviceMap, + + Free = static_cast<u32>(Svc::MemoryState::Free), + Io = static_cast<u32>(Svc::MemoryState::Io) | FlagMapped, + Static = static_cast<u32>(Svc::MemoryState::Static) | FlagMapped | FlagCanQueryPhysical, + Code = static_cast<u32>(Svc::MemoryState::Code) | FlagsCode | FlagCanMapProcess, + CodeData = static_cast<u32>(Svc::MemoryState::CodeData) | FlagsData | FlagCanMapProcess | + FlagCanCodeMemory, + Shared = static_cast<u32>(Svc::MemoryState::Shared) | FlagMapped | FlagReferenceCounted, + Normal = static_cast<u32>(Svc::MemoryState::Normal) | FlagsData | FlagCanCodeMemory, + + AliasCode = static_cast<u32>(Svc::MemoryState::AliasCode) | FlagsCode | FlagCanMapProcess | + FlagCanCodeAlias, + AliasCodeData = static_cast<u32>(Svc::MemoryState::AliasCodeData) | FlagsData | + FlagCanMapProcess | FlagCanCodeAlias | FlagCanCodeMemory, + + Ipc = static_cast<u32>(Svc::MemoryState::Ipc) | FlagsMisc | FlagCanAlignedDeviceMap | + FlagCanUseIpc | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc, + + Stack = static_cast<u32>(Svc::MemoryState::Stack) | FlagsMisc | FlagCanAlignedDeviceMap | + FlagCanUseIpc | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc, + + ThreadLocal = + static_cast<u32>(Svc::MemoryState::ThreadLocal) | FlagMapped | FlagReferenceCounted, + + Transfered = static_cast<u32>(Svc::MemoryState::Transfered) | FlagsMisc | + FlagCanAlignedDeviceMap | FlagCanChangeAttribute | FlagCanUseIpc | + FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc, + + SharedTransfered = static_cast<u32>(Svc::MemoryState::SharedTransfered) | FlagsMisc | + FlagCanAlignedDeviceMap | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc, + + SharedCode = static_cast<u32>(Svc::MemoryState::SharedCode) | FlagMapped | + FlagReferenceCounted | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc, + + Inaccessible = static_cast<u32>(Svc::MemoryState::Inaccessible), + + NonSecureIpc = static_cast<u32>(Svc::MemoryState::NonSecureIpc) | FlagsMisc | + FlagCanAlignedDeviceMap | FlagCanUseNonSecureIpc | FlagCanUseNonDeviceIpc, + + NonDeviceIpc = + static_cast<u32>(Svc::MemoryState::NonDeviceIpc) | FlagsMisc | FlagCanUseNonDeviceIpc, + + Kernel = static_cast<u32>(Svc::MemoryState::Kernel) | FlagMapped, + + GeneratedCode = static_cast<u32>(Svc::MemoryState::GeneratedCode) | FlagMapped | + FlagReferenceCounted | FlagCanDebug, + CodeOut = static_cast<u32>(Svc::MemoryState::CodeOut) | FlagMapped | FlagReferenceCounted, +}; +DECLARE_ENUM_FLAG_OPERATORS(MemoryState); + +static_assert(static_cast<u32>(MemoryState::Free) == 0x00000000); +static_assert(static_cast<u32>(MemoryState::Io) == 0x00002001); +static_assert(static_cast<u32>(MemoryState::Static) == 0x00042002); +static_assert(static_cast<u32>(MemoryState::Code) == 0x00DC7E03); +static_assert(static_cast<u32>(MemoryState::CodeData) == 0x03FEBD04); +static_assert(static_cast<u32>(MemoryState::Normal) == 0x037EBD05); +static_assert(static_cast<u32>(MemoryState::Shared) == 0x00402006); +static_assert(static_cast<u32>(MemoryState::AliasCode) == 0x00DD7E08); +static_assert(static_cast<u32>(MemoryState::AliasCodeData) == 0x03FFBD09); +static_assert(static_cast<u32>(MemoryState::Ipc) == 0x005C3C0A); +static_assert(static_cast<u32>(MemoryState::Stack) == 0x005C3C0B); +static_assert(static_cast<u32>(MemoryState::ThreadLocal) == 0x0040200C); +static_assert(static_cast<u32>(MemoryState::Transfered) == 0x015C3C0D); +static_assert(static_cast<u32>(MemoryState::SharedTransfered) == 0x005C380E); +static_assert(static_cast<u32>(MemoryState::SharedCode) == 0x0040380F); +static_assert(static_cast<u32>(MemoryState::Inaccessible) == 0x00000010); +static_assert(static_cast<u32>(MemoryState::NonSecureIpc) == 0x005C3811); +static_assert(static_cast<u32>(MemoryState::NonDeviceIpc) == 0x004C2812); +static_assert(static_cast<u32>(MemoryState::Kernel) == 0x00002013); +static_assert(static_cast<u32>(MemoryState::GeneratedCode) == 0x00402214); +static_assert(static_cast<u32>(MemoryState::CodeOut) == 0x00402015); + +enum class MemoryPermission : u8 { + None = 0, + Mask = static_cast<u8>(~None), + + Read = 1 << 0, + Write = 1 << 1, + Execute = 1 << 2, + + ReadAndWrite = Read | Write, + ReadAndExecute = Read | Execute, + + UserMask = static_cast<u8>(Svc::MemoryPermission::Read | Svc::MemoryPermission::Write | + Svc::MemoryPermission::Execute), +}; +DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission); + +enum class MemoryAttribute : u8 { + None = 0x00, + Mask = 0x7F, + All = Mask, + DontCareMask = 0x80, + + Locked = static_cast<u8>(Svc::MemoryAttribute::Locked), + IpcLocked = static_cast<u8>(Svc::MemoryAttribute::IpcLocked), + DeviceShared = static_cast<u8>(Svc::MemoryAttribute::DeviceShared), + Uncached = static_cast<u8>(Svc::MemoryAttribute::Uncached), + + IpcAndDeviceMapped = IpcLocked | DeviceShared, + LockedAndIpcLocked = Locked | IpcLocked, + DeviceSharedAndUncached = DeviceShared | Uncached +}; +DECLARE_ENUM_FLAG_OPERATORS(MemoryAttribute); + +static_assert((static_cast<u8>(MemoryAttribute::Mask) & + static_cast<u8>(MemoryAttribute::DontCareMask)) == 0); + +struct MemoryInfo { + VAddr addr{}; + std::size_t size{}; + MemoryState state{}; + MemoryPermission perm{}; + MemoryAttribute attribute{}; + MemoryPermission original_perm{}; + u16 ipc_lock_count{}; + u16 device_use_count{}; + + constexpr Svc::MemoryInfo GetSvcMemoryInfo() const { + return { + addr, + size, + static_cast<Svc::MemoryState>(state & MemoryState::Mask), + static_cast<Svc::MemoryAttribute>(attribute & MemoryAttribute::Mask), + static_cast<Svc::MemoryPermission>(perm & MemoryPermission::UserMask), + ipc_lock_count, + device_use_count, + }; + } + + constexpr VAddr GetAddress() const { + return addr; + } + constexpr std::size_t GetSize() const { + return size; + } + constexpr std::size_t GetNumPages() const { + return GetSize() / PageSize; + } + constexpr VAddr GetEndAddress() const { + return GetAddress() + GetSize(); + } + constexpr VAddr GetLastAddress() const { + return GetEndAddress() - 1; + } +}; + +class MemoryBlock final { + friend class MemoryBlockManager; + +private: + VAddr addr{}; + std::size_t num_pages{}; + MemoryState state{MemoryState::None}; + u16 ipc_lock_count{}; + u16 device_use_count{}; + MemoryPermission perm{MemoryPermission::None}; + MemoryPermission original_perm{MemoryPermission::None}; + MemoryAttribute attribute{MemoryAttribute::None}; + +public: + static constexpr int Compare(const MemoryBlock& lhs, const MemoryBlock& rhs) { + if (lhs.GetAddress() < rhs.GetAddress()) { + return -1; + } else if (lhs.GetAddress() <= rhs.GetLastAddress()) { + return 0; + } else { + return 1; + } + } + +public: + constexpr MemoryBlock() = default; + constexpr MemoryBlock(VAddr addr, std::size_t num_pages, MemoryState state, + MemoryPermission perm, MemoryAttribute attribute) + : addr{addr}, num_pages(num_pages), state{state}, perm{perm}, attribute{attribute} {} + + constexpr VAddr GetAddress() const { + return addr; + } + + constexpr std::size_t GetNumPages() const { + return num_pages; + } + + constexpr std::size_t GetSize() const { + return GetNumPages() * PageSize; + } + + constexpr VAddr GetEndAddress() const { + return GetAddress() + GetSize(); + } + + constexpr VAddr GetLastAddress() const { + return GetEndAddress() - 1; + } + + constexpr MemoryInfo GetMemoryInfo() const { + return { + GetAddress(), GetSize(), state, perm, + attribute, original_perm, ipc_lock_count, device_use_count, + }; + } + +private: + constexpr bool HasProperties(MemoryState s, MemoryPermission p, MemoryAttribute a) const { + constexpr MemoryAttribute AttributeIgnoreMask{MemoryAttribute::DontCareMask | + MemoryAttribute::IpcLocked | + MemoryAttribute::DeviceShared}; + return state == s && perm == p && + (attribute | AttributeIgnoreMask) == (a | AttributeIgnoreMask); + } + + constexpr bool HasSameProperties(const MemoryBlock& rhs) const { + return state == rhs.state && perm == rhs.perm && original_perm == rhs.original_perm && + attribute == rhs.attribute && ipc_lock_count == rhs.ipc_lock_count && + device_use_count == rhs.device_use_count; + } + + constexpr bool Contains(VAddr start) const { + return GetAddress() <= start && start <= GetEndAddress(); + } + + constexpr void Add(std::size_t count) { + ASSERT(count > 0); + ASSERT(GetAddress() + count * PageSize - 1 < GetEndAddress() + count * PageSize - 1); + + num_pages += count; + } + + constexpr void Update(MemoryState new_state, MemoryPermission new_perm, + MemoryAttribute new_attribute) { + ASSERT(original_perm == MemoryPermission::None); + ASSERT((attribute & MemoryAttribute::IpcLocked) == MemoryAttribute::None); + + state = new_state; + perm = new_perm; + + // TODO(bunnei): Is this right? + attribute = static_cast<MemoryAttribute>( + new_attribute /*| (attribute & (MemoryAttribute::IpcLocked | MemoryAttribute::DeviceShared))*/); + } + + constexpr MemoryBlock Split(VAddr split_addr) { + ASSERT(GetAddress() < split_addr); + ASSERT(Contains(split_addr)); + ASSERT(Common::IsAligned(split_addr, PageSize)); + + MemoryBlock block; + block.addr = addr; + block.num_pages = (split_addr - GetAddress()) / PageSize; + block.state = state; + block.ipc_lock_count = ipc_lock_count; + block.device_use_count = device_use_count; + block.perm = perm; + block.original_perm = original_perm; + block.attribute = attribute; + + addr = split_addr; + num_pages -= block.num_pages; + + return block; + } +}; +static_assert(std::is_trivially_destructible<MemoryBlock>::value); + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/memory_block_manager.cpp b/src/core/hle/kernel/memory/memory_block_manager.cpp new file mode 100644 index 000000000..1ebc126c0 --- /dev/null +++ b/src/core/hle/kernel/memory/memory_block_manager.cpp @@ -0,0 +1,190 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "core/hle/kernel/memory/memory_block_manager.h" +#include "core/hle/kernel/memory/memory_types.h" + +namespace Kernel::Memory { + +MemoryBlockManager::MemoryBlockManager(VAddr start_addr, VAddr end_addr) + : start_addr{start_addr}, end_addr{end_addr} { + const u64 num_pages{(end_addr - start_addr) / PageSize}; + memory_block_tree.emplace_back(start_addr, num_pages, MemoryState::Free, MemoryPermission::None, + MemoryAttribute::None); +} + +MemoryBlockManager::iterator MemoryBlockManager::FindIterator(VAddr addr) { + auto node{memory_block_tree.begin()}; + while (node != end()) { + const VAddr end_addr{node->GetNumPages() * PageSize + node->GetAddress()}; + if (node->GetAddress() <= addr && end_addr - 1 >= addr) { + return node; + } + node = std::next(node); + } + return end(); +} + +VAddr MemoryBlockManager::FindFreeArea(VAddr region_start, std::size_t region_num_pages, + std::size_t num_pages, std::size_t align, std::size_t offset, + std::size_t guard_pages) { + if (num_pages == 0) { + return {}; + } + + const VAddr region_end{region_start + region_num_pages * PageSize}; + const VAddr region_last{region_end - 1}; + for (auto it{FindIterator(region_start)}; it != memory_block_tree.cend(); it++) { + const auto info{it->GetMemoryInfo()}; + if (region_last < info.GetAddress()) { + break; + } + + if (info.state != MemoryState::Free) { + continue; + } + + VAddr area{(info.GetAddress() <= region_start) ? region_start : info.GetAddress()}; + area += guard_pages * PageSize; + + const VAddr offset_area{Common::AlignDown(area, align) + offset}; + area = (area <= offset_area) ? offset_area : offset_area + align; + + const VAddr area_end{area + num_pages * PageSize + guard_pages * PageSize}; + const VAddr area_last{area_end - 1}; + + if (info.GetAddress() <= area && area < area_last && area_last <= region_last && + area_last <= info.GetLastAddress()) { + return area; + } + } + + return {}; +} + +void MemoryBlockManager::Update(VAddr addr, std::size_t num_pages, MemoryState prev_state, + MemoryPermission prev_perm, MemoryAttribute prev_attribute, + MemoryState state, MemoryPermission perm, + MemoryAttribute attribute) { + const std::size_t prev_count{memory_block_tree.size()}; + const VAddr end_addr{addr + num_pages * PageSize}; + iterator node{memory_block_tree.begin()}; + + prev_attribute |= MemoryAttribute::IpcAndDeviceMapped; + + while (node != memory_block_tree.end()) { + MemoryBlock* block{&(*node)}; + iterator next_node{std::next(node)}; + const VAddr cur_addr{block->GetAddress()}; + const VAddr cur_end_addr{block->GetNumPages() * PageSize + cur_addr}; + + if (addr < cur_end_addr && cur_addr < end_addr) { + if (!block->HasProperties(prev_state, prev_perm, prev_attribute)) { + node = next_node; + continue; + } + + iterator new_node{node}; + if (addr > cur_addr) { + memory_block_tree.insert(node, block->Split(addr)); + } + + if (end_addr < cur_end_addr) { + new_node = memory_block_tree.insert(node, block->Split(end_addr)); + } + + new_node->Update(state, perm, attribute); + + MergeAdjacent(new_node, next_node); + } + + if (cur_end_addr - 1 >= end_addr - 1) { + break; + } + + node = next_node; + } +} + +void MemoryBlockManager::Update(VAddr addr, std::size_t num_pages, MemoryState state, + MemoryPermission perm, MemoryAttribute attribute) { + const std::size_t prev_count{memory_block_tree.size()}; + const VAddr end_addr{addr + num_pages * PageSize}; + iterator node{memory_block_tree.begin()}; + + while (node != memory_block_tree.end()) { + MemoryBlock* block{&(*node)}; + iterator next_node{std::next(node)}; + const VAddr cur_addr{block->GetAddress()}; + const VAddr cur_end_addr{block->GetNumPages() * PageSize + cur_addr}; + + if (addr < cur_end_addr && cur_addr < end_addr) { + iterator new_node{node}; + + if (addr > cur_addr) { + memory_block_tree.insert(node, block->Split(addr)); + } + + if (end_addr < cur_end_addr) { + new_node = memory_block_tree.insert(node, block->Split(end_addr)); + } + + new_node->Update(state, perm, attribute); + + MergeAdjacent(new_node, next_node); + } + + if (cur_end_addr - 1 >= end_addr - 1) { + break; + } + + node = next_node; + } +} + +void MemoryBlockManager::IterateForRange(VAddr start, VAddr end, IterateFunc&& func) { + const_iterator it{FindIterator(start)}; + MemoryInfo info{}; + do { + info = it->GetMemoryInfo(); + func(info); + it = std::next(it); + } while (info.addr + info.size - 1 < end - 1 && it != cend()); +} + +void MemoryBlockManager::MergeAdjacent(iterator it, iterator& next_it) { + MemoryBlock* block{&(*it)}; + + auto EraseIt = [&](const iterator it_to_erase) { + if (next_it == it_to_erase) { + next_it = std::next(next_it); + } + memory_block_tree.erase(it_to_erase); + }; + + if (it != memory_block_tree.begin()) { + MemoryBlock* prev{&(*std::prev(it))}; + + if (block->HasSameProperties(*prev)) { + const iterator prev_it{std::prev(it)}; + + prev->Add(block->GetNumPages()); + EraseIt(it); + + it = prev_it; + block = prev; + } + } + + if (it != cend()) { + const MemoryBlock* const next{&(*std::next(it))}; + + if (block->HasSameProperties(*next)) { + block->Add(next->GetNumPages()); + EraseIt(std::next(it)); + } + } +} + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/memory_block_manager.h b/src/core/hle/kernel/memory/memory_block_manager.h new file mode 100644 index 000000000..0f2270f0f --- /dev/null +++ b/src/core/hle/kernel/memory/memory_block_manager.h @@ -0,0 +1,64 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <functional> +#include <list> +#include <memory> + +#include "common/common_types.h" +#include "core/hle/kernel/memory/memory_block.h" + +namespace Kernel::Memory { + +class MemoryBlockManager final { +public: + using MemoryBlockTree = std::list<MemoryBlock>; + using iterator = MemoryBlockTree::iterator; + using const_iterator = MemoryBlockTree::const_iterator; + +public: + MemoryBlockManager(VAddr start_addr, VAddr end_addr); + + iterator end() { + return memory_block_tree.end(); + } + const_iterator end() const { + return memory_block_tree.end(); + } + const_iterator cend() const { + return memory_block_tree.cend(); + } + + iterator FindIterator(VAddr addr); + + VAddr FindFreeArea(VAddr region_start, std::size_t region_num_pages, std::size_t num_pages, + std::size_t align, std::size_t offset, std::size_t guard_pages); + + void Update(VAddr addr, std::size_t num_pages, MemoryState prev_state, + MemoryPermission prev_perm, MemoryAttribute prev_attribute, MemoryState state, + MemoryPermission perm, MemoryAttribute attribute); + + void Update(VAddr addr, std::size_t num_pages, MemoryState state, + MemoryPermission perm = MemoryPermission::None, + MemoryAttribute attribute = MemoryAttribute::None); + + using IterateFunc = std::function<void(const MemoryInfo&)>; + void IterateForRange(VAddr start, VAddr end, IterateFunc&& func); + + MemoryBlock& FindBlock(VAddr addr) { + return *FindIterator(addr); + } + +private: + void MergeAdjacent(iterator it, iterator& next_it); + + const VAddr start_addr; + const VAddr end_addr; + + MemoryBlockTree memory_block_tree; +}; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/memory_layout.h b/src/core/hle/kernel/memory/memory_layout.h new file mode 100644 index 000000000..830c6f0d7 --- /dev/null +++ b/src/core/hle/kernel/memory/memory_layout.h @@ -0,0 +1,73 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/common_types.h" + +namespace Kernel::Memory { + +class MemoryRegion final { + friend class MemoryLayout; + +public: + constexpr PAddr StartAddress() const { + return start_address; + } + + constexpr PAddr EndAddress() const { + return end_address; + } + +private: + constexpr MemoryRegion() = default; + constexpr MemoryRegion(PAddr start_address, PAddr end_address) + : start_address{start_address}, end_address{end_address} {} + + const PAddr start_address{}; + const PAddr end_address{}; +}; + +class MemoryLayout final { +public: + constexpr const MemoryRegion& Application() const { + return application; + } + + constexpr const MemoryRegion& Applet() const { + return applet; + } + + constexpr const MemoryRegion& System() const { + return system; + } + + static constexpr MemoryLayout GetDefaultLayout() { + constexpr std::size_t application_size{0xcd500000}; + constexpr std::size_t applet_size{0x1fb00000}; + constexpr PAddr application_start_address{Core::DramMemoryMap::End - application_size}; + constexpr PAddr application_end_address{Core::DramMemoryMap::End}; + constexpr PAddr applet_start_address{application_start_address - applet_size}; + constexpr PAddr applet_end_address{applet_start_address + applet_size}; + constexpr PAddr system_start_address{Core::DramMemoryMap::SlabHeapEnd}; + constexpr PAddr system_end_address{applet_start_address}; + return {application_start_address, application_end_address, applet_start_address, + applet_end_address, system_start_address, system_end_address}; + } + +private: + constexpr MemoryLayout(PAddr application_start_address, std::size_t application_size, + PAddr applet_start_address, std::size_t applet_size, + PAddr system_start_address, std::size_t system_size) + : application{application_start_address, application_size}, + applet{applet_start_address, applet_size}, system{system_start_address, system_size} {} + + const MemoryRegion application; + const MemoryRegion applet; + const MemoryRegion system; + + const PAddr start_address{}; +}; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/memory_manager.cpp b/src/core/hle/kernel/memory/memory_manager.cpp new file mode 100644 index 000000000..3cd4f9e85 --- /dev/null +++ b/src/core/hle/kernel/memory/memory_manager.cpp @@ -0,0 +1,176 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <algorithm> + +#include "common/alignment.h" +#include "common/assert.h" +#include "common/common_types.h" +#include "common/scope_exit.h" +#include "core/hle/kernel/errors.h" +#include "core/hle/kernel/memory/memory_manager.h" +#include "core/hle/kernel/memory/page_linked_list.h" + +namespace Kernel::Memory { + +std::size_t MemoryManager::Impl::Initialize(Pool new_pool, u64 start_address, u64 end_address) { + const auto size{end_address - start_address}; + + // Calculate metadata sizes + const auto ref_count_size{(size / PageSize) * sizeof(u16)}; + const auto optimize_map_size{(Common::AlignUp((size / PageSize), 64) / 64) * sizeof(u64)}; + const auto manager_size{Common::AlignUp(optimize_map_size + ref_count_size, PageSize)}; + const auto page_heap_size{PageHeap::CalculateMetadataOverheadSize(size)}; + const auto total_metadata_size{manager_size + page_heap_size}; + ASSERT(manager_size <= total_metadata_size); + ASSERT(Common::IsAligned(total_metadata_size, PageSize)); + + // Setup region + pool = new_pool; + + // Initialize the manager's KPageHeap + heap.Initialize(start_address, size, page_heap_size); + + // Free the memory to the heap + heap.Free(start_address, size / PageSize); + + // Update the heap's used size + heap.UpdateUsedSize(); + + return total_metadata_size; +} + +void MemoryManager::InitializeManager(Pool pool, u64 start_address, u64 end_address) { + ASSERT(pool < Pool::Count); + managers[static_cast<std::size_t>(pool)].Initialize(pool, start_address, end_address); +} + +VAddr MemoryManager::AllocateContinuous(std::size_t num_pages, std::size_t align_pages, Pool pool, + Direction dir) { + // Early return if we're allocating no pages + if (num_pages == 0) { + return {}; + } + + // Lock the pool that we're allocating from + const auto pool_index{static_cast<std::size_t>(pool)}; + std::lock_guard lock{pool_locks[pool_index]}; + + // Choose a heap based on our page size request + const s32 heap_index{PageHeap::GetAlignedBlockIndex(num_pages, align_pages)}; + + // Loop, trying to iterate from each block + // TODO (bunnei): Support multiple managers + Impl& chosen_manager{managers[pool_index]}; + VAddr allocated_block{chosen_manager.AllocateBlock(heap_index)}; + + // If we failed to allocate, quit now + if (!allocated_block) { + return {}; + } + + // If we allocated more than we need, free some + const auto allocated_pages{PageHeap::GetBlockNumPages(heap_index)}; + if (allocated_pages > num_pages) { + chosen_manager.Free(allocated_block + num_pages * PageSize, allocated_pages - num_pages); + } + + return allocated_block; +} + +ResultCode MemoryManager::Allocate(PageLinkedList& page_list, std::size_t num_pages, Pool pool, + Direction dir) { + ASSERT(page_list.GetNumPages() == 0); + + // Early return if we're allocating no pages + if (num_pages == 0) { + return RESULT_SUCCESS; + } + + // Lock the pool that we're allocating from + const auto pool_index{static_cast<std::size_t>(pool)}; + std::lock_guard lock{pool_locks[pool_index]}; + + // Choose a heap based on our page size request + const s32 heap_index{PageHeap::GetBlockIndex(num_pages)}; + if (heap_index < 0) { + return ERR_OUT_OF_MEMORY; + } + + // TODO (bunnei): Support multiple managers + Impl& chosen_manager{managers[pool_index]}; + + // Ensure that we don't leave anything un-freed + auto group_guard = detail::ScopeExit([&] { + for (const auto& it : page_list.Nodes()) { + const auto num_pages{std::min( + it.GetNumPages(), (chosen_manager.GetEndAddress() - it.GetAddress()) / PageSize)}; + chosen_manager.Free(it.GetAddress(), num_pages); + } + }); + + // Keep allocating until we've allocated all our pages + for (s32 index{heap_index}; index >= 0 && num_pages > 0; index--) { + const auto pages_per_alloc{PageHeap::GetBlockNumPages(index)}; + + while (num_pages >= pages_per_alloc) { + // Allocate a block + VAddr allocated_block{chosen_manager.AllocateBlock(index)}; + if (!allocated_block) { + break; + } + + // Safely add it to our group + { + auto block_guard = detail::ScopeExit( + [&] { chosen_manager.Free(allocated_block, pages_per_alloc); }); + + if (const ResultCode result{page_list.AddBlock(allocated_block, pages_per_alloc)}; + result.IsError()) { + return result; + } + + block_guard.Cancel(); + } + + num_pages -= pages_per_alloc; + } + } + + // Only succeed if we allocated as many pages as we wanted + ASSERT(num_pages >= 0); + if (num_pages) { + return ERR_OUT_OF_MEMORY; + } + + // We succeeded! + group_guard.Cancel(); + return RESULT_SUCCESS; +} + +ResultCode MemoryManager::Free(PageLinkedList& page_list, std::size_t num_pages, Pool pool, + Direction dir) { + // Early return if we're freeing no pages + if (!num_pages) { + return RESULT_SUCCESS; + } + + // Lock the pool that we're freeing from + const auto pool_index{static_cast<std::size_t>(pool)}; + std::lock_guard lock{pool_locks[pool_index]}; + + // TODO (bunnei): Support multiple managers + Impl& chosen_manager{managers[pool_index]}; + + // Free all of the pages + for (const auto& it : page_list.Nodes()) { + const auto num_pages{std::min( + it.GetNumPages(), (chosen_manager.GetEndAddress() - it.GetAddress()) / PageSize)}; + chosen_manager.Free(it.GetAddress(), num_pages); + } + + return RESULT_SUCCESS; +} + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/memory_manager.h b/src/core/hle/kernel/memory/memory_manager.h new file mode 100644 index 000000000..b078d7a5e --- /dev/null +++ b/src/core/hle/kernel/memory/memory_manager.h @@ -0,0 +1,97 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <array> +#include <mutex> + +#include "common/common_funcs.h" +#include "common/common_types.h" +#include "core/hle/kernel/memory/page_heap.h" +#include "core/hle/result.h" + +namespace Kernel::Memory { + +class PageLinkedList; + +class MemoryManager final : NonCopyable { +public: + enum class Pool : u32 { + Application = 0, + Applet = 1, + System = 2, + SystemNonSecure = 3, + + Count, + + Shift = 4, + Mask = (0xF << Shift), + }; + + enum class Direction : u32 { + FromFront = 0, + FromBack = 1, + + Shift = 0, + Mask = (0xF << Shift), + }; + + MemoryManager() = default; + + constexpr std::size_t GetSize(Pool pool) const { + return managers[static_cast<std::size_t>(pool)].GetSize(); + } + + void InitializeManager(Pool pool, u64 start_address, u64 end_address); + VAddr AllocateContinuous(std::size_t num_pages, std::size_t align_pages, Pool pool, + Direction dir = Direction::FromFront); + ResultCode Allocate(PageLinkedList& page_list, std::size_t num_pages, Pool pool, + Direction dir = Direction::FromFront); + ResultCode Free(PageLinkedList& page_list, std::size_t num_pages, Pool pool, + Direction dir = Direction::FromFront); + + static constexpr std::size_t MaxManagerCount = 10; + +private: + class Impl final : NonCopyable { + private: + using RefCount = u16; + + private: + PageHeap heap; + Pool pool{}; + + public: + Impl() = default; + + std::size_t Initialize(Pool new_pool, u64 start_address, u64 end_address); + + VAddr AllocateBlock(s32 index) { + return heap.AllocateBlock(index); + } + + void Free(VAddr addr, std::size_t num_pages) { + heap.Free(addr, num_pages); + } + + constexpr std::size_t GetSize() const { + return heap.GetSize(); + } + + constexpr VAddr GetAddress() const { + return heap.GetAddress(); + } + + constexpr VAddr GetEndAddress() const { + return heap.GetEndAddress(); + } + }; + +private: + std::array<std::mutex, static_cast<std::size_t>(Pool::Count)> pool_locks; + std::array<Impl, MaxManagerCount> managers; +}; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/memory_types.h b/src/core/hle/kernel/memory/memory_types.h new file mode 100644 index 000000000..a75bf77c0 --- /dev/null +++ b/src/core/hle/kernel/memory/memory_types.h @@ -0,0 +1,18 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <array> + +#include "common/common_types.h" + +namespace Kernel::Memory { + +constexpr std::size_t PageBits{12}; +constexpr std::size_t PageSize{1 << PageBits}; + +using Page = std::array<u8, PageSize>; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/page_heap.cpp b/src/core/hle/kernel/memory/page_heap.cpp new file mode 100644 index 000000000..efcbb3cad --- /dev/null +++ b/src/core/hle/kernel/memory/page_heap.cpp @@ -0,0 +1,119 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +// This file references various implementation details from Atmosphère, an open-source firmware for +// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX. + +#include "core/core.h" +#include "core/hle/kernel/memory/page_heap.h" +#include "core/memory.h" + +namespace Kernel::Memory { + +void PageHeap::Initialize(VAddr address, std::size_t size, std::size_t metadata_size) { + // Check our assumptions + ASSERT(Common::IsAligned((address), PageSize)); + ASSERT(Common::IsAligned(size, PageSize)); + + // Set our members + heap_address = address; + heap_size = size; + + // Setup bitmaps + metadata.resize(metadata_size / sizeof(u64)); + u64* cur_bitmap_storage{metadata.data()}; + for (std::size_t i = 0; i < MemoryBlockPageShifts.size(); i++) { + const std::size_t cur_block_shift{MemoryBlockPageShifts[i]}; + const std::size_t next_block_shift{ + (i != MemoryBlockPageShifts.size() - 1) ? MemoryBlockPageShifts[i + 1] : 0}; + cur_bitmap_storage = blocks[i].Initialize(heap_address, heap_size, cur_block_shift, + next_block_shift, cur_bitmap_storage); + } +} + +VAddr PageHeap::AllocateBlock(s32 index) { + const std::size_t needed_size{blocks[index].GetSize()}; + + for (s32 i{index}; i < static_cast<s32>(MemoryBlockPageShifts.size()); i++) { + if (const VAddr addr{blocks[i].PopBlock()}; addr) { + if (const std::size_t allocated_size{blocks[i].GetSize()}; + allocated_size > needed_size) { + Free(addr + needed_size, (allocated_size - needed_size) / PageSize); + } + return addr; + } + } + + return 0; +} + +void PageHeap::FreeBlock(VAddr block, s32 index) { + do { + block = blocks[index++].PushBlock(block); + } while (block != 0); +} + +void PageHeap::Free(VAddr addr, std::size_t num_pages) { + // Freeing no pages is a no-op + if (num_pages == 0) { + return; + } + + // Find the largest block size that we can free, and free as many as possible + s32 big_index{static_cast<s32>(MemoryBlockPageShifts.size()) - 1}; + const VAddr start{addr}; + const VAddr end{(num_pages * PageSize) + addr}; + VAddr before_start{start}; + VAddr before_end{start}; + VAddr after_start{end}; + VAddr after_end{end}; + while (big_index >= 0) { + const std::size_t block_size{blocks[big_index].GetSize()}; + const VAddr big_start{Common::AlignUp((start), block_size)}; + const VAddr big_end{Common::AlignDown((end), block_size)}; + if (big_start < big_end) { + // Free as many big blocks as we can + for (auto block{big_start}; block < big_end; block += block_size) { + FreeBlock(block, big_index); + } + before_end = big_start; + after_start = big_end; + break; + } + big_index--; + } + ASSERT(big_index >= 0); + + // Free space before the big blocks + for (s32 i{big_index - 1}; i >= 0; i--) { + const std::size_t block_size{blocks[i].GetSize()}; + while (before_start + block_size <= before_end) { + before_end -= block_size; + FreeBlock(before_end, i); + } + } + + // Free space after the big blocks + for (s32 i{big_index - 1}; i >= 0; i--) { + const std::size_t block_size{blocks[i].GetSize()}; + while (after_start + block_size <= after_end) { + FreeBlock(after_start, i); + after_start += block_size; + } + } +} + +std::size_t PageHeap::CalculateMetadataOverheadSize(std::size_t region_size) { + std::size_t overhead_size = 0; + for (std::size_t i = 0; i < MemoryBlockPageShifts.size(); i++) { + const std::size_t cur_block_shift{MemoryBlockPageShifts[i]}; + const std::size_t next_block_shift{ + (i != MemoryBlockPageShifts.size() - 1) ? MemoryBlockPageShifts[i + 1] : 0}; + overhead_size += PageHeap::Block::CalculateMetadataOverheadSize( + region_size, cur_block_shift, next_block_shift); + } + return Common::AlignUp(overhead_size, PageSize); +} + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/page_heap.h b/src/core/hle/kernel/memory/page_heap.h new file mode 100644 index 000000000..380c3f5a1 --- /dev/null +++ b/src/core/hle/kernel/memory/page_heap.h @@ -0,0 +1,370 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +// This file references various implementation details from Atmosphère, an open-source firmware for +// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX. + +#pragma once + +#include <array> +#include <vector> + +#include "common/alignment.h" +#include "common/assert.h" +#include "common/bit_util.h" +#include "common/common_funcs.h" +#include "common/common_types.h" +#include "core/hle/kernel/memory/memory_types.h" + +namespace Kernel::Memory { + +class PageHeap final : NonCopyable { +public: + static constexpr s32 GetAlignedBlockIndex(std::size_t num_pages, std::size_t align_pages) { + const auto target_pages{std::max(num_pages, align_pages)}; + for (std::size_t i = 0; i < NumMemoryBlockPageShifts; i++) { + if (target_pages <= + (static_cast<std::size_t>(1) << MemoryBlockPageShifts[i]) / PageSize) { + return static_cast<s32>(i); + } + } + return -1; + } + + static constexpr s32 GetBlockIndex(std::size_t num_pages) { + for (s32 i{static_cast<s32>(NumMemoryBlockPageShifts) - 1}; i >= 0; i--) { + if (num_pages >= (static_cast<std::size_t>(1) << MemoryBlockPageShifts[i]) / PageSize) { + return i; + } + } + return -1; + } + + static constexpr std::size_t GetBlockSize(std::size_t index) { + return static_cast<std::size_t>(1) << MemoryBlockPageShifts[index]; + } + + static constexpr std::size_t GetBlockNumPages(std::size_t index) { + return GetBlockSize(index) / PageSize; + } + +private: + static constexpr std::size_t NumMemoryBlockPageShifts{7}; + static constexpr std::array<std::size_t, NumMemoryBlockPageShifts> MemoryBlockPageShifts{ + 0xC, 0x10, 0x15, 0x16, 0x19, 0x1D, 0x1E, + }; + + class Block final : NonCopyable { + private: + class Bitmap final : NonCopyable { + public: + static constexpr std::size_t MaxDepth{4}; + + private: + std::array<u64*, MaxDepth> bit_storages{}; + std::size_t num_bits{}; + std::size_t used_depths{}; + + public: + constexpr Bitmap() = default; + + constexpr std::size_t GetNumBits() const { + return num_bits; + } + constexpr s32 GetHighestDepthIndex() const { + return static_cast<s32>(used_depths) - 1; + } + + constexpr u64* Initialize(u64* storage, std::size_t size) { + //* Initially, everything is un-set + num_bits = 0; + + // Calculate the needed bitmap depth + used_depths = static_cast<std::size_t>(GetRequiredDepth(size)); + ASSERT(used_depths <= MaxDepth); + + // Set the bitmap pointers + for (s32 depth{GetHighestDepthIndex()}; depth >= 0; depth--) { + bit_storages[depth] = storage; + size = Common::AlignUp(size, 64) / 64; + storage += size; + } + + return storage; + } + + s64 FindFreeBlock() const { + uintptr_t offset{}; + s32 depth{}; + + do { + const u64 v{bit_storages[depth][offset]}; + if (v == 0) { + // Non-zero depth indicates that a previous level had a free block + ASSERT(depth == 0); + return -1; + } + offset = offset * 64 + Common::CountTrailingZeroes64(v); + ++depth; + } while (depth < static_cast<s32>(used_depths)); + + return static_cast<s64>(offset); + } + + constexpr void SetBit(std::size_t offset) { + SetBit(GetHighestDepthIndex(), offset); + num_bits++; + } + + constexpr void ClearBit(std::size_t offset) { + ClearBit(GetHighestDepthIndex(), offset); + num_bits--; + } + + constexpr bool ClearRange(std::size_t offset, std::size_t count) { + const s32 depth{GetHighestDepthIndex()}; + const auto bit_ind{offset / 64}; + u64* bits{bit_storages[depth]}; + if (count < 64) { + const auto shift{offset % 64}; + ASSERT(shift + count <= 64); + // Check that all the bits are set + const u64 mask{((1ULL << count) - 1) << shift}; + u64 v{bits[bit_ind]}; + if ((v & mask) != mask) { + return false; + } + + // Clear the bits + v &= ~mask; + bits[bit_ind] = v; + if (v == 0) { + ClearBit(depth - 1, bit_ind); + } + } else { + ASSERT(offset % 64 == 0); + ASSERT(count % 64 == 0); + // Check that all the bits are set + std::size_t remaining{count}; + std::size_t i = 0; + do { + if (bits[bit_ind + i++] != ~u64(0)) { + return false; + } + remaining -= 64; + } while (remaining > 0); + + // Clear the bits + remaining = count; + i = 0; + do { + bits[bit_ind + i] = 0; + ClearBit(depth - 1, bit_ind + i); + i++; + remaining -= 64; + } while (remaining > 0); + } + + num_bits -= count; + return true; + } + + private: + constexpr void SetBit(s32 depth, std::size_t offset) { + while (depth >= 0) { + const auto ind{offset / 64}; + const auto which{offset % 64}; + const u64 mask{1ULL << which}; + + u64* bit{std::addressof(bit_storages[depth][ind])}; + const u64 v{*bit}; + ASSERT((v & mask) == 0); + *bit = v | mask; + if (v) { + break; + } + offset = ind; + depth--; + } + } + + constexpr void ClearBit(s32 depth, std::size_t offset) { + while (depth >= 0) { + const auto ind{offset / 64}; + const auto which{offset % 64}; + const u64 mask{1ULL << which}; + + u64* bit{std::addressof(bit_storages[depth][ind])}; + u64 v{*bit}; + ASSERT((v & mask) != 0); + v &= ~mask; + *bit = v; + if (v) { + break; + } + offset = ind; + depth--; + } + } + + private: + static constexpr s32 GetRequiredDepth(std::size_t region_size) { + s32 depth = 0; + while (true) { + region_size /= 64; + depth++; + if (region_size == 0) { + return depth; + } + } + } + + public: + static constexpr std::size_t CalculateMetadataOverheadSize(std::size_t region_size) { + std::size_t overhead_bits = 0; + for (s32 depth{GetRequiredDepth(region_size) - 1}; depth >= 0; depth--) { + region_size = Common::AlignUp(region_size, 64) / 64; + overhead_bits += region_size; + } + return overhead_bits * sizeof(u64); + } + }; + + private: + Bitmap bitmap; + VAddr heap_address{}; + uintptr_t end_offset{}; + std::size_t block_shift{}; + std::size_t next_block_shift{}; + + public: + constexpr Block() = default; + + constexpr std::size_t GetShift() const { + return block_shift; + } + constexpr std::size_t GetNextShift() const { + return next_block_shift; + } + constexpr std::size_t GetSize() const { + return static_cast<std::size_t>(1) << GetShift(); + } + constexpr std::size_t GetNumPages() const { + return GetSize() / PageSize; + } + constexpr std::size_t GetNumFreeBlocks() const { + return bitmap.GetNumBits(); + } + constexpr std::size_t GetNumFreePages() const { + return GetNumFreeBlocks() * GetNumPages(); + } + + constexpr u64* Initialize(VAddr addr, std::size_t size, std::size_t bs, std::size_t nbs, + u64* bit_storage) { + // Set shifts + block_shift = bs; + next_block_shift = nbs; + + // Align up the address + VAddr end{addr + size}; + const auto align{(next_block_shift != 0) ? (1ULL << next_block_shift) + : (1ULL << block_shift)}; + addr = Common::AlignDown((addr), align); + end = Common::AlignUp((end), align); + + heap_address = addr; + end_offset = (end - addr) / (1ULL << block_shift); + return bitmap.Initialize(bit_storage, end_offset); + } + + constexpr VAddr PushBlock(VAddr address) { + // Set the bit for the free block + std::size_t offset{(address - heap_address) >> GetShift()}; + bitmap.SetBit(offset); + + // If we have a next shift, try to clear the blocks below and return the address + if (GetNextShift()) { + const auto diff{1ULL << (GetNextShift() - GetShift())}; + offset = Common::AlignDown(offset, diff); + if (bitmap.ClearRange(offset, diff)) { + return heap_address + (offset << GetShift()); + } + } + + // We couldn't coalesce, or we're already as big as possible + return 0; + } + + VAddr PopBlock() { + // Find a free block + const s64 soffset{bitmap.FindFreeBlock()}; + if (soffset < 0) { + return 0; + } + const auto offset{static_cast<std::size_t>(soffset)}; + + // Update our tracking and return it + bitmap.ClearBit(offset); + return heap_address + (offset << GetShift()); + } + + public: + static constexpr std::size_t CalculateMetadataOverheadSize(std::size_t region_size, + std::size_t cur_block_shift, + std::size_t next_block_shift) { + const auto cur_block_size{(1ULL << cur_block_shift)}; + const auto next_block_size{(1ULL << next_block_shift)}; + const auto align{(next_block_shift != 0) ? next_block_size : cur_block_size}; + return Bitmap::CalculateMetadataOverheadSize( + (align * 2 + Common::AlignUp(region_size, align)) / cur_block_size); + } + }; + +public: + PageHeap() = default; + + constexpr VAddr GetAddress() const { + return heap_address; + } + constexpr std::size_t GetSize() const { + return heap_size; + } + constexpr VAddr GetEndAddress() const { + return GetAddress() + GetSize(); + } + constexpr std::size_t GetPageOffset(VAddr block) const { + return (block - GetAddress()) / PageSize; + } + + void Initialize(VAddr heap_address, std::size_t heap_size, std::size_t metadata_size); + VAddr AllocateBlock(s32 index); + void Free(VAddr addr, std::size_t num_pages); + + void UpdateUsedSize() { + used_size = heap_size - (GetNumFreePages() * PageSize); + } + + static std::size_t CalculateMetadataOverheadSize(std::size_t region_size); + +private: + constexpr std::size_t GetNumFreePages() const { + std::size_t num_free{}; + + for (const auto& block : blocks) { + num_free += block.GetNumFreePages(); + } + + return num_free; + } + + void FreeBlock(VAddr block, s32 index); + + VAddr heap_address{}; + std::size_t heap_size{}; + std::size_t used_size{}; + std::array<Block, NumMemoryBlockPageShifts> blocks{}; + std::vector<u64> metadata; +}; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/page_linked_list.h b/src/core/hle/kernel/memory/page_linked_list.h new file mode 100644 index 000000000..0668d00c6 --- /dev/null +++ b/src/core/hle/kernel/memory/page_linked_list.h @@ -0,0 +1,93 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <list> + +#include "common/assert.h" +#include "common/common_funcs.h" +#include "common/common_types.h" +#include "core/hle/kernel/memory/memory_types.h" +#include "core/hle/result.h" + +namespace Kernel::Memory { + +class PageLinkedList final { +public: + class Node final { + public: + constexpr Node(u64 addr, std::size_t num_pages) : addr{addr}, num_pages{num_pages} {} + + constexpr u64 GetAddress() const { + return addr; + } + + constexpr std::size_t GetNumPages() const { + return num_pages; + } + + private: + u64 addr{}; + std::size_t num_pages{}; + }; + +public: + PageLinkedList() = default; + PageLinkedList(u64 address, u64 num_pages) { + ASSERT(AddBlock(address, num_pages).IsSuccess()); + } + + constexpr std::list<Node>& Nodes() { + return nodes; + } + + constexpr const std::list<Node>& Nodes() const { + return nodes; + } + + std::size_t GetNumPages() const { + std::size_t num_pages = 0; + for (const Node& node : nodes) { + num_pages += node.GetNumPages(); + } + return num_pages; + } + + bool IsEqual(PageLinkedList& other) const { + auto this_node = nodes.begin(); + auto other_node = other.nodes.begin(); + while (this_node != nodes.end() && other_node != other.nodes.end()) { + if (this_node->GetAddress() != other_node->GetAddress() || + this_node->GetNumPages() != other_node->GetNumPages()) { + return false; + } + this_node = std::next(this_node); + other_node = std::next(other_node); + } + + return this_node == nodes.end() && other_node == other.nodes.end(); + } + + ResultCode AddBlock(u64 address, u64 num_pages) { + if (!num_pages) { + return RESULT_SUCCESS; + } + if (!nodes.empty()) { + const auto node = nodes.back(); + if (node.GetAddress() + node.GetNumPages() * PageSize == address) { + address = node.GetAddress(); + num_pages += node.GetNumPages(); + nodes.pop_back(); + } + } + nodes.push_back({address, num_pages}); + return RESULT_SUCCESS; + } + +private: + std::list<Node> nodes; +}; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/page_table.cpp b/src/core/hle/kernel/memory/page_table.cpp new file mode 100644 index 000000000..091e52ca4 --- /dev/null +++ b/src/core/hle/kernel/memory/page_table.cpp @@ -0,0 +1,1130 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include "common/alignment.h" +#include "common/assert.h" +#include "common/scope_exit.h" +#include "core/core.h" +#include "core/device_memory.h" +#include "core/hle/kernel/errors.h" +#include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/memory/address_space_info.h" +#include "core/hle/kernel/memory/memory_block.h" +#include "core/hle/kernel/memory/memory_block_manager.h" +#include "core/hle/kernel/memory/page_linked_list.h" +#include "core/hle/kernel/memory/page_table.h" +#include "core/hle/kernel/memory/system_control.h" +#include "core/hle/kernel/process.h" +#include "core/hle/kernel/resource_limit.h" +#include "core/memory.h" + +namespace Kernel::Memory { + +namespace { + +constexpr std::size_t GetAddressSpaceWidthFromType(FileSys::ProgramAddressSpaceType as_type) { + switch (as_type) { + case FileSys::ProgramAddressSpaceType::Is32Bit: + case FileSys::ProgramAddressSpaceType::Is32BitNoMap: + return 32; + case FileSys::ProgramAddressSpaceType::Is36Bit: + return 36; + case FileSys::ProgramAddressSpaceType::Is39Bit: + return 39; + default: + UNREACHABLE(); + return {}; + } +} + +constexpr u64 GetAddressInRange(const MemoryInfo& info, VAddr addr) { + if (info.GetAddress() < addr) { + return addr; + } + return info.GetAddress(); +} + +constexpr std::size_t GetSizeInRange(const MemoryInfo& info, VAddr start, VAddr end) { + std::size_t size{info.GetSize()}; + if (info.GetAddress() < start) { + size -= start - info.GetAddress(); + } + if (info.GetEndAddress() > end) { + size -= info.GetEndAddress() - end; + } + return size; +} + +} // namespace + +PageTable::PageTable(Core::System& system) : system{system} {} + +ResultCode PageTable::InitializeForProcess(FileSys::ProgramAddressSpaceType as_type, + bool enable_aslr, VAddr code_addr, std::size_t code_size, + Memory::MemoryManager::Pool pool) { + + const auto GetSpaceStart = [this](AddressSpaceInfo::Type type) { + return AddressSpaceInfo::GetAddressSpaceStart(address_space_width, type); + }; + const auto GetSpaceSize = [this](AddressSpaceInfo::Type type) { + return AddressSpaceInfo::GetAddressSpaceSize(address_space_width, type); + }; + + // Set our width and heap/alias sizes + address_space_width = GetAddressSpaceWidthFromType(as_type); + const VAddr start = 0; + const VAddr end{1ULL << address_space_width}; + std::size_t alias_region_size{GetSpaceSize(AddressSpaceInfo::Type::Alias)}; + std::size_t heap_region_size{GetSpaceSize(AddressSpaceInfo::Type::Heap)}; + + ASSERT(start <= code_addr); + ASSERT(code_addr < code_addr + code_size); + ASSERT(code_addr + code_size - 1 <= end - 1); + + // Adjust heap/alias size if we don't have an alias region + if (as_type == FileSys::ProgramAddressSpaceType::Is32BitNoMap) { + heap_region_size += alias_region_size; + alias_region_size = 0; + } + + // Set code regions and determine remaining + constexpr std::size_t RegionAlignment{2 * 1024 * 1024}; + VAddr process_code_start{}; + VAddr process_code_end{}; + std::size_t stack_region_size{}; + std::size_t kernel_map_region_size{}; + + if (address_space_width == 39) { + alias_region_size = GetSpaceSize(AddressSpaceInfo::Type::Alias); + heap_region_size = GetSpaceSize(AddressSpaceInfo::Type::Heap); + stack_region_size = GetSpaceSize(AddressSpaceInfo::Type::Stack); + kernel_map_region_size = GetSpaceSize(AddressSpaceInfo::Type::Is32Bit); + code_region_start = GetSpaceStart(AddressSpaceInfo::Type::Large64Bit); + code_region_end = code_region_start + GetSpaceSize(AddressSpaceInfo::Type::Large64Bit); + alias_code_region_start = code_region_start; + alias_code_region_end = code_region_end; + process_code_start = Common::AlignDown(code_addr, RegionAlignment); + process_code_end = Common::AlignUp(code_addr + code_size, RegionAlignment); + } else { + stack_region_size = 0; + kernel_map_region_size = 0; + code_region_start = GetSpaceStart(AddressSpaceInfo::Type::Is32Bit); + code_region_end = code_region_start + GetSpaceSize(AddressSpaceInfo::Type::Is32Bit); + stack_region_start = code_region_start; + alias_code_region_start = code_region_start; + alias_code_region_end = GetSpaceStart(AddressSpaceInfo::Type::Small64Bit) + + GetSpaceSize(AddressSpaceInfo::Type::Small64Bit); + stack_region_end = code_region_end; + kernel_map_region_start = code_region_start; + kernel_map_region_end = code_region_end; + process_code_start = code_region_start; + process_code_end = code_region_end; + } + + // Set other basic fields + is_aslr_enabled = enable_aslr; + address_space_start = start; + address_space_end = end; + is_kernel = false; + + // Determine the region we can place our undetermineds in + VAddr alloc_start{}; + std::size_t alloc_size{}; + if ((process_code_start - code_region_start) >= (end - process_code_end)) { + alloc_start = code_region_start; + alloc_size = process_code_start - code_region_start; + } else { + alloc_start = process_code_end; + alloc_size = end - process_code_end; + } + const std::size_t needed_size{ + (alias_region_size + heap_region_size + stack_region_size + kernel_map_region_size)}; + if (alloc_size < needed_size) { + UNREACHABLE(); + return ERR_OUT_OF_MEMORY; + } + + const std::size_t remaining_size{alloc_size - needed_size}; + + // Determine random placements for each region + std::size_t alias_rnd{}, heap_rnd{}, stack_rnd{}, kmap_rnd{}; + if (enable_aslr) { + alias_rnd = SystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) * + RegionAlignment; + heap_rnd = SystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) * + RegionAlignment; + stack_rnd = SystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) * + RegionAlignment; + kmap_rnd = SystemControl::GenerateRandomRange(0, remaining_size / RegionAlignment) * + RegionAlignment; + } + + // Setup heap and alias regions + alias_region_start = alloc_start + alias_rnd; + alias_region_end = alias_region_start + alias_region_size; + heap_region_start = alloc_start + heap_rnd; + heap_region_end = heap_region_start + heap_region_size; + + if (alias_rnd <= heap_rnd) { + heap_region_start += alias_region_size; + heap_region_end += alias_region_size; + } else { + alias_region_start += heap_region_size; + alias_region_end += heap_region_size; + } + + // Setup stack region + if (stack_region_size) { + stack_region_start = alloc_start + stack_rnd; + stack_region_end = stack_region_start + stack_region_size; + + if (alias_rnd < stack_rnd) { + stack_region_start += alias_region_size; + stack_region_end += alias_region_size; + } else { + alias_region_start += stack_region_size; + alias_region_end += stack_region_size; + } + + if (heap_rnd < stack_rnd) { + stack_region_start += heap_region_size; + stack_region_end += heap_region_size; + } else { + heap_region_start += stack_region_size; + heap_region_end += stack_region_size; + } + } + + // Setup kernel map region + if (kernel_map_region_size) { + kernel_map_region_start = alloc_start + kmap_rnd; + kernel_map_region_end = kernel_map_region_start + kernel_map_region_size; + + if (alias_rnd < kmap_rnd) { + kernel_map_region_start += alias_region_size; + kernel_map_region_end += alias_region_size; + } else { + alias_region_start += kernel_map_region_size; + alias_region_end += kernel_map_region_size; + } + + if (heap_rnd < kmap_rnd) { + kernel_map_region_start += heap_region_size; + kernel_map_region_end += heap_region_size; + } else { + heap_region_start += kernel_map_region_size; + heap_region_end += kernel_map_region_size; + } + + if (stack_region_size) { + if (stack_rnd < kmap_rnd) { + kernel_map_region_start += stack_region_size; + kernel_map_region_end += stack_region_size; + } else { + stack_region_start += kernel_map_region_size; + stack_region_end += kernel_map_region_size; + } + } + } + + // Set heap members + current_heap_end = heap_region_start; + max_heap_size = 0; + max_physical_memory_size = 0; + + // Ensure that we regions inside our address space + auto IsInAddressSpace = [&](VAddr addr) { + return address_space_start <= addr && addr <= address_space_end; + }; + ASSERT(IsInAddressSpace(alias_region_start)); + ASSERT(IsInAddressSpace(alias_region_end)); + ASSERT(IsInAddressSpace(heap_region_start)); + ASSERT(IsInAddressSpace(heap_region_end)); + ASSERT(IsInAddressSpace(stack_region_start)); + ASSERT(IsInAddressSpace(stack_region_end)); + ASSERT(IsInAddressSpace(kernel_map_region_start)); + ASSERT(IsInAddressSpace(kernel_map_region_end)); + + // Ensure that we selected regions that don't overlap + const VAddr alias_start{alias_region_start}; + const VAddr alias_last{alias_region_end - 1}; + const VAddr heap_start{heap_region_start}; + const VAddr heap_last{heap_region_end - 1}; + const VAddr stack_start{stack_region_start}; + const VAddr stack_last{stack_region_end - 1}; + const VAddr kmap_start{kernel_map_region_start}; + const VAddr kmap_last{kernel_map_region_end - 1}; + ASSERT(alias_last < heap_start || heap_last < alias_start); + ASSERT(alias_last < stack_start || stack_last < alias_start); + ASSERT(alias_last < kmap_start || kmap_last < alias_start); + ASSERT(heap_last < stack_start || stack_last < heap_start); + ASSERT(heap_last < kmap_start || kmap_last < heap_start); + + current_heap_addr = heap_region_start; + heap_capacity = 0; + physical_memory_usage = 0; + memory_pool = pool; + + page_table_impl.Resize(address_space_width, PageBits, true); + + return InitializeMemoryLayout(start, end); +} + +ResultCode PageTable::MapProcessCode(VAddr addr, std::size_t num_pages, MemoryState state, + MemoryPermission perm) { + std::lock_guard lock{page_table_lock}; + + const u64 size{num_pages * PageSize}; + + if (!CanContain(addr, size, state)) { + return ERR_INVALID_ADDRESS_STATE; + } + + if (IsRegionMapped(addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + + PageLinkedList page_linked_list; + CASCADE_CODE( + system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool)); + CASCADE_CODE(Operate(addr, num_pages, page_linked_list, OperationType::MapGroup)); + + block_manager->Update(addr, num_pages, state, perm); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::MapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size) { + std::lock_guard lock{page_table_lock}; + + const std::size_t num_pages{size / PageSize}; + + MemoryState state{}; + MemoryPermission perm{}; + CASCADE_CODE(CheckMemoryState(&state, &perm, nullptr, src_addr, size, MemoryState::All, + MemoryState::Normal, MemoryPermission::Mask, + MemoryPermission::ReadAndWrite, MemoryAttribute::Mask, + MemoryAttribute::None, MemoryAttribute::IpcAndDeviceMapped)); + + if (IsRegionMapped(dst_addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + + PageLinkedList page_linked_list; + AddRegionToPages(src_addr, num_pages, page_linked_list); + + { + auto block_guard = detail::ScopeExit( + [&] { Operate(src_addr, num_pages, perm, OperationType::ChangePermissions); }); + + CASCADE_CODE( + Operate(src_addr, num_pages, MemoryPermission::None, OperationType::ChangePermissions)); + CASCADE_CODE(MapPages(dst_addr, page_linked_list, MemoryPermission::None)); + + block_guard.Cancel(); + } + + block_manager->Update(src_addr, num_pages, state, MemoryPermission::None, + MemoryAttribute::Locked); + block_manager->Update(dst_addr, num_pages, MemoryState::AliasCode); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::UnmapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size) { + std::lock_guard lock{page_table_lock}; + + if (!size) { + return RESULT_SUCCESS; + } + + const std::size_t num_pages{size / PageSize}; + + CASCADE_CODE(CheckMemoryState(nullptr, nullptr, nullptr, src_addr, size, MemoryState::All, + MemoryState::Normal, MemoryPermission::None, + MemoryPermission::None, MemoryAttribute::Mask, + MemoryAttribute::Locked, MemoryAttribute::IpcAndDeviceMapped)); + + MemoryState state{}; + CASCADE_CODE(CheckMemoryState( + &state, nullptr, nullptr, dst_addr, PageSize, MemoryState::FlagCanCodeAlias, + MemoryState::FlagCanCodeAlias, MemoryPermission::None, MemoryPermission::None, + MemoryAttribute::Mask, MemoryAttribute::None, MemoryAttribute::IpcAndDeviceMapped)); + CASCADE_CODE(CheckMemoryState(dst_addr, size, MemoryState::All, state, MemoryPermission::None, + MemoryPermission::None, MemoryAttribute::Mask, + MemoryAttribute::None)); + CASCADE_CODE(Operate(dst_addr, num_pages, MemoryPermission::None, OperationType::Unmap)); + + block_manager->Update(dst_addr, num_pages, MemoryState::Free); + block_manager->Update(src_addr, num_pages, MemoryState::Normal, MemoryPermission::ReadAndWrite); + + return RESULT_SUCCESS; +} + +void PageTable::MapPhysicalMemory(PageLinkedList& page_linked_list, VAddr start, VAddr end) { + auto node{page_linked_list.Nodes().begin()}; + PAddr map_addr{node->GetAddress()}; + std::size_t src_num_pages{node->GetNumPages()}; + + block_manager->IterateForRange(start, end, [&](const MemoryInfo& info) { + if (info.state != MemoryState::Free) { + return; + } + + std::size_t dst_num_pages{GetSizeInRange(info, start, end) / PageSize}; + VAddr dst_addr{GetAddressInRange(info, start)}; + + while (dst_num_pages) { + if (!src_num_pages) { + node = std::next(node); + map_addr = node->GetAddress(); + src_num_pages = node->GetNumPages(); + } + + const std::size_t num_pages{std::min(src_num_pages, dst_num_pages)}; + Operate(dst_addr, num_pages, MemoryPermission::ReadAndWrite, OperationType::Map, + map_addr); + + dst_addr += num_pages * PageSize; + map_addr += num_pages * PageSize; + src_num_pages -= num_pages; + dst_num_pages -= num_pages; + } + }); +} + +ResultCode PageTable::MapPhysicalMemory(VAddr addr, std::size_t size) { + std::lock_guard lock{page_table_lock}; + + std::size_t mapped_size{}; + const VAddr end_addr{addr + size}; + + block_manager->IterateForRange(addr, end_addr, [&](const MemoryInfo& info) { + if (info.state != MemoryState::Free) { + mapped_size += GetSizeInRange(info, addr, end_addr); + } + }); + + if (mapped_size == size) { + return RESULT_SUCCESS; + } + + auto process{system.Kernel().CurrentProcess()}; + const std::size_t remaining_size{size - mapped_size}; + const std::size_t remaining_pages{remaining_size / PageSize}; + + if (process->GetResourceLimit() && + !process->GetResourceLimit()->Reserve(ResourceType::PhysicalMemory, remaining_size)) { + return ERR_RESOURCE_LIMIT_EXCEEDED; + } + + PageLinkedList page_linked_list; + { + auto block_guard = detail::ScopeExit([&] { + system.Kernel().MemoryManager().Free(page_linked_list, remaining_pages, memory_pool); + process->GetResourceLimit()->Release(ResourceType::PhysicalMemory, remaining_size); + }); + + CASCADE_CODE(system.Kernel().MemoryManager().Allocate(page_linked_list, remaining_pages, + memory_pool)); + + block_guard.Cancel(); + } + + MapPhysicalMemory(page_linked_list, addr, end_addr); + + physical_memory_usage += remaining_size; + + const std::size_t num_pages{size / PageSize}; + block_manager->Update(addr, num_pages, MemoryState::Free, MemoryPermission::None, + MemoryAttribute::None, MemoryState::Normal, + MemoryPermission::ReadAndWrite, MemoryAttribute::None); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::UnmapPhysicalMemory(VAddr addr, std::size_t size) { + std::lock_guard lock{page_table_lock}; + + const VAddr end_addr{addr + size}; + ResultCode result{RESULT_SUCCESS}; + std::size_t mapped_size{}; + + // Verify that the region can be unmapped + block_manager->IterateForRange(addr, end_addr, [&](const MemoryInfo& info) { + if (info.state == MemoryState::Normal) { + if (info.attribute != MemoryAttribute::None) { + result = ERR_INVALID_ADDRESS_STATE; + return; + } + mapped_size += GetSizeInRange(info, addr, end_addr); + } else if (info.state != MemoryState::Free) { + result = ERR_INVALID_ADDRESS_STATE; + } + }); + + if (result.IsError()) { + return result; + } + + if (!mapped_size) { + return RESULT_SUCCESS; + } + + CASCADE_CODE(UnmapMemory(addr, size)); + + auto process{system.Kernel().CurrentProcess()}; + process->GetResourceLimit()->Release(ResourceType::PhysicalMemory, mapped_size); + physical_memory_usage -= mapped_size; + + return RESULT_SUCCESS; +} + +ResultCode PageTable::UnmapMemory(VAddr addr, std::size_t size) { + std::lock_guard lock{page_table_lock}; + + const VAddr end_addr{addr + size}; + ResultCode result{RESULT_SUCCESS}; + PageLinkedList page_linked_list; + + // Unmap each region within the range + block_manager->IterateForRange(addr, end_addr, [&](const MemoryInfo& info) { + if (info.state == MemoryState::Normal) { + const std::size_t block_size{GetSizeInRange(info, addr, end_addr)}; + const std::size_t block_num_pages{block_size / PageSize}; + const VAddr block_addr{GetAddressInRange(info, addr)}; + + AddRegionToPages(block_addr, block_size / PageSize, page_linked_list); + + if (result = Operate(block_addr, block_num_pages, MemoryPermission::None, + OperationType::Unmap); + result.IsError()) { + return; + } + } + }); + + if (result.IsError()) { + return result; + } + + const std::size_t num_pages{size / PageSize}; + system.Kernel().MemoryManager().Free(page_linked_list, num_pages, memory_pool); + + block_manager->Update(addr, num_pages, MemoryState::Free); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::Map(VAddr dst_addr, VAddr src_addr, std::size_t size) { + std::lock_guard lock{page_table_lock}; + + MemoryState src_state{}; + CASCADE_CODE(CheckMemoryState( + &src_state, nullptr, nullptr, src_addr, size, MemoryState::FlagCanAlias, + MemoryState::FlagCanAlias, MemoryPermission::Mask, MemoryPermission::ReadAndWrite, + MemoryAttribute::Mask, MemoryAttribute::None, MemoryAttribute::IpcAndDeviceMapped)); + + if (IsRegionMapped(dst_addr, size)) { + return ERR_INVALID_ADDRESS_STATE; + } + + PageLinkedList page_linked_list; + const std::size_t num_pages{size / PageSize}; + + AddRegionToPages(src_addr, num_pages, page_linked_list); + + { + auto block_guard = detail::ScopeExit([&] { + Operate(src_addr, num_pages, MemoryPermission::ReadAndWrite, + OperationType::ChangePermissions); + }); + + CASCADE_CODE( + Operate(src_addr, num_pages, MemoryPermission::None, OperationType::ChangePermissions)); + CASCADE_CODE(MapPages(dst_addr, page_linked_list, MemoryPermission::ReadAndWrite)); + + block_guard.Cancel(); + } + + block_manager->Update(src_addr, num_pages, src_state, MemoryPermission::None, + MemoryAttribute::Locked); + block_manager->Update(dst_addr, num_pages, MemoryState::Stack, MemoryPermission::ReadAndWrite); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::Unmap(VAddr dst_addr, VAddr src_addr, std::size_t size) { + std::lock_guard lock{page_table_lock}; + + MemoryState src_state{}; + CASCADE_CODE(CheckMemoryState( + &src_state, nullptr, nullptr, src_addr, size, MemoryState::FlagCanAlias, + MemoryState::FlagCanAlias, MemoryPermission::Mask, MemoryPermission::None, + MemoryAttribute::Mask, MemoryAttribute::Locked, MemoryAttribute::IpcAndDeviceMapped)); + + MemoryPermission dst_perm{}; + CASCADE_CODE(CheckMemoryState(nullptr, &dst_perm, nullptr, dst_addr, size, MemoryState::All, + MemoryState::Stack, MemoryPermission::None, + MemoryPermission::None, MemoryAttribute::Mask, + MemoryAttribute::None, MemoryAttribute::IpcAndDeviceMapped)); + + PageLinkedList src_pages; + PageLinkedList dst_pages; + const std::size_t num_pages{size / PageSize}; + + AddRegionToPages(src_addr, num_pages, src_pages); + AddRegionToPages(dst_addr, num_pages, dst_pages); + + if (!dst_pages.IsEqual(src_pages)) { + return ERR_INVALID_MEMORY_RANGE; + } + + { + auto block_guard = detail::ScopeExit([&] { MapPages(dst_addr, dst_pages, dst_perm); }); + + CASCADE_CODE(Operate(dst_addr, num_pages, MemoryPermission::None, OperationType::Unmap)); + CASCADE_CODE(Operate(src_addr, num_pages, MemoryPermission::ReadAndWrite, + OperationType::ChangePermissions)); + + block_guard.Cancel(); + } + + block_manager->Update(src_addr, num_pages, src_state, MemoryPermission::ReadAndWrite); + block_manager->Update(dst_addr, num_pages, MemoryState::Free); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::MapPages(VAddr addr, const PageLinkedList& page_linked_list, + MemoryPermission perm) { + VAddr cur_addr{addr}; + + for (const auto& node : page_linked_list.Nodes()) { + if (const auto result{ + Operate(cur_addr, node.GetNumPages(), perm, OperationType::Map, node.GetAddress())}; + result.IsError()) { + const MemoryInfo info{block_manager->FindBlock(cur_addr).GetMemoryInfo()}; + const std::size_t num_pages{(addr - cur_addr) / PageSize}; + + ASSERT( + Operate(addr, num_pages, MemoryPermission::None, OperationType::Unmap).IsSuccess()); + + return result; + } + + cur_addr += node.GetNumPages() * PageSize; + } + + return RESULT_SUCCESS; +} + +ResultCode PageTable::MapPages(VAddr addr, PageLinkedList& page_linked_list, MemoryState state, + MemoryPermission perm) { + std::lock_guard lock{page_table_lock}; + + const std::size_t num_pages{page_linked_list.GetNumPages()}; + const std::size_t size{num_pages * PageSize}; + + if (!CanContain(addr, size, state)) { + return ERR_INVALID_ADDRESS_STATE; + } + + if (IsRegionMapped(addr, num_pages * PageSize)) { + return ERR_INVALID_ADDRESS_STATE; + } + + CASCADE_CODE(MapPages(addr, page_linked_list, perm)); + + block_manager->Update(addr, num_pages, state, perm); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::SetCodeMemoryPermission(VAddr addr, std::size_t size, MemoryPermission perm) { + + std::lock_guard lock{page_table_lock}; + + MemoryState prev_state{}; + MemoryPermission prev_perm{}; + + CASCADE_CODE(CheckMemoryState( + &prev_state, &prev_perm, nullptr, addr, size, MemoryState::FlagCode, MemoryState::FlagCode, + MemoryPermission::None, MemoryPermission::None, MemoryAttribute::Mask, + MemoryAttribute::None, MemoryAttribute::IpcAndDeviceMapped)); + + MemoryState state{prev_state}; + + // Ensure state is mutable if permission allows write + if ((perm & MemoryPermission::Write) != MemoryPermission::None) { + if (prev_state == MemoryState::Code) { + state = MemoryState::CodeData; + } else if (prev_state == MemoryState::AliasCode) { + state = MemoryState::AliasCodeData; + } else { + UNREACHABLE(); + } + } + + // Return early if there is nothing to change + if (state == prev_state && perm == prev_perm) { + return RESULT_SUCCESS; + } + + const std::size_t num_pages{size / PageSize}; + const OperationType operation{(perm & MemoryPermission::Execute) != MemoryPermission::None + ? OperationType::ChangePermissionsAndRefresh + : OperationType::ChangePermissions}; + + CASCADE_CODE(Operate(addr, num_pages, perm, operation)); + + block_manager->Update(addr, num_pages, state, perm); + + return RESULT_SUCCESS; +} + +MemoryInfo PageTable::QueryInfoImpl(VAddr addr) { + std::lock_guard lock{page_table_lock}; + + return block_manager->FindBlock(addr).GetMemoryInfo(); +} + +MemoryInfo PageTable::QueryInfo(VAddr addr) { + if (!Contains(addr, 1)) { + return {address_space_end, 0 - address_space_end, MemoryState::Inaccessible, + MemoryPermission::None, MemoryAttribute::None, MemoryPermission::None}; + } + + return QueryInfoImpl(addr); +} + +ResultCode PageTable::ReserveTransferMemory(VAddr addr, std::size_t size, MemoryPermission perm) { + std::lock_guard lock{page_table_lock}; + + MemoryState state{}; + MemoryAttribute attribute{}; + + CASCADE_CODE(CheckMemoryState(&state, nullptr, &attribute, addr, size, + MemoryState::FlagCanTransfer | MemoryState::FlagReferenceCounted, + MemoryState::FlagCanTransfer | MemoryState::FlagReferenceCounted, + MemoryPermission::Mask, MemoryPermission::ReadAndWrite, + MemoryAttribute::Mask, MemoryAttribute::None, + MemoryAttribute::IpcAndDeviceMapped)); + + block_manager->Update(addr, size / PageSize, state, perm, attribute | MemoryAttribute::Locked); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::ResetTransferMemory(VAddr addr, std::size_t size) { + std::lock_guard lock{page_table_lock}; + + MemoryState state{}; + + CASCADE_CODE(CheckMemoryState(&state, nullptr, nullptr, addr, size, + MemoryState::FlagCanTransfer | MemoryState::FlagReferenceCounted, + MemoryState::FlagCanTransfer | MemoryState::FlagReferenceCounted, + MemoryPermission::None, MemoryPermission::None, + MemoryAttribute::Mask, MemoryAttribute::Locked, + MemoryAttribute::IpcAndDeviceMapped)); + + block_manager->Update(addr, size / PageSize, state, MemoryPermission::ReadAndWrite); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::SetMemoryAttribute(VAddr addr, std::size_t size, MemoryAttribute mask, + MemoryAttribute value) { + std::lock_guard lock{page_table_lock}; + + MemoryState state{}; + MemoryPermission perm{}; + MemoryAttribute attribute{}; + + CASCADE_CODE(CheckMemoryState(&state, &perm, &attribute, addr, size, + MemoryState::FlagCanChangeAttribute, + MemoryState::FlagCanChangeAttribute, MemoryPermission::None, + MemoryPermission::None, MemoryAttribute::LockedAndIpcLocked, + MemoryAttribute::None, MemoryAttribute::DeviceSharedAndUncached)); + + attribute = attribute & ~mask; + attribute = attribute | (mask & value); + + block_manager->Update(addr, size / PageSize, state, perm, attribute); + + return RESULT_SUCCESS; +} + +ResultCode PageTable::SetHeapCapacity(std::size_t new_heap_capacity) { + std::lock_guard lock{page_table_lock}; + heap_capacity = new_heap_capacity; + return RESULT_SUCCESS; +} + +ResultVal<VAddr> PageTable::SetHeapSize(std::size_t size) { + + if (size > heap_region_end - heap_region_start) { + return ERR_OUT_OF_MEMORY; + } + + const u64 previous_heap_size{GetHeapSize()}; + + UNIMPLEMENTED_IF_MSG(previous_heap_size > size, "Heap shrink is unimplemented"); + + // Increase the heap size + { + std::lock_guard lock{page_table_lock}; + + const u64 delta{size - previous_heap_size}; + + auto process{system.Kernel().CurrentProcess()}; + if (process->GetResourceLimit() && delta != 0 && + !process->GetResourceLimit()->Reserve(ResourceType::PhysicalMemory, delta)) { + return ERR_RESOURCE_LIMIT_EXCEEDED; + } + + PageLinkedList page_linked_list; + const std::size_t num_pages{delta / PageSize}; + + CASCADE_CODE( + system.Kernel().MemoryManager().Allocate(page_linked_list, num_pages, memory_pool)); + + if (IsRegionMapped(current_heap_addr, delta)) { + return ERR_INVALID_ADDRESS_STATE; + } + + CASCADE_CODE( + Operate(current_heap_addr, num_pages, page_linked_list, OperationType::MapGroup)); + + block_manager->Update(current_heap_addr, num_pages, MemoryState::Normal, + MemoryPermission::ReadAndWrite); + + current_heap_addr = heap_region_start + size; + } + + return MakeResult<VAddr>(heap_region_start); +} + +ResultVal<VAddr> PageTable::AllocateAndMapMemory(std::size_t needed_num_pages, std::size_t align, + bool is_map_only, VAddr region_start, + std::size_t region_num_pages, MemoryState state, + MemoryPermission perm, PAddr map_addr) { + std::lock_guard lock{page_table_lock}; + + if (!CanContain(region_start, region_num_pages * PageSize, state)) { + return ERR_INVALID_ADDRESS_STATE; + } + + if (region_num_pages <= needed_num_pages) { + return ERR_OUT_OF_MEMORY; + } + + const VAddr addr{ + AllocateVirtualMemory(region_start, region_num_pages, needed_num_pages, align)}; + if (!addr) { + return ERR_OUT_OF_MEMORY; + } + + if (is_map_only) { + CASCADE_CODE(Operate(addr, needed_num_pages, perm, OperationType::Map, map_addr)); + } else { + PageLinkedList page_group; + CASCADE_CODE( + system.Kernel().MemoryManager().Allocate(page_group, needed_num_pages, memory_pool)); + CASCADE_CODE(Operate(addr, needed_num_pages, page_group, OperationType::MapGroup)); + } + + block_manager->Update(addr, needed_num_pages, state, perm); + + return MakeResult<VAddr>(addr); +} + +ResultCode PageTable::InitializeMemoryLayout(VAddr start, VAddr end) { + block_manager = std::make_unique<MemoryBlockManager>(start, end); + + return RESULT_SUCCESS; +} + +bool PageTable::IsRegionMapped(VAddr address, u64 size) { + return CheckMemoryState(address, size, MemoryState::All, MemoryState::Free, + MemoryPermission::Mask, MemoryPermission::None, MemoryAttribute::Mask, + MemoryAttribute::None, MemoryAttribute::IpcAndDeviceMapped) + .IsError(); +} + +bool PageTable::IsRegionContiguous(VAddr addr, u64 size) const { + auto start_ptr = system.Memory().GetPointer(addr); + for (u64 offset{}; offset < size; offset += PageSize) { + if (start_ptr != system.Memory().GetPointer(addr + offset)) { + return false; + } + start_ptr += PageSize; + } + return true; +} + +void PageTable::AddRegionToPages(VAddr start, std::size_t num_pages, + PageLinkedList& page_linked_list) { + VAddr addr{start}; + while (addr < start + (num_pages * PageSize)) { + const PAddr paddr{GetPhysicalAddr(addr)}; + if (!paddr) { + UNREACHABLE(); + } + page_linked_list.AddBlock(paddr, 1); + addr += PageSize; + } +} + +VAddr PageTable::AllocateVirtualMemory(VAddr start, std::size_t region_num_pages, + u64 needed_num_pages, std::size_t align) { + if (is_aslr_enabled) { + UNIMPLEMENTED(); + } + return block_manager->FindFreeArea(start, region_num_pages, needed_num_pages, align, 0, + IsKernel() ? 1 : 4); +} + +ResultCode PageTable::Operate(VAddr addr, std::size_t num_pages, const PageLinkedList& page_group, + OperationType operation) { + std::lock_guard lock{page_table_lock}; + + ASSERT(Common::IsAligned(addr, PageSize)); + ASSERT(num_pages > 0); + ASSERT(num_pages == page_group.GetNumPages()); + + for (const auto& node : page_group.Nodes()) { + const std::size_t size{node.GetNumPages() * PageSize}; + + switch (operation) { + case OperationType::MapGroup: + system.Memory().MapMemoryRegion(page_table_impl, addr, size, node.GetAddress()); + break; + default: + UNREACHABLE(); + } + + addr += size; + } + + return RESULT_SUCCESS; +} + +ResultCode PageTable::Operate(VAddr addr, std::size_t num_pages, MemoryPermission perm, + OperationType operation, PAddr map_addr) { + std::lock_guard lock{page_table_lock}; + + ASSERT(num_pages > 0); + ASSERT(Common::IsAligned(addr, PageSize)); + ASSERT(ContainsPages(addr, num_pages)); + + switch (operation) { + case OperationType::Unmap: + system.Memory().UnmapRegion(page_table_impl, addr, num_pages * PageSize); + break; + case OperationType::Map: { + ASSERT(map_addr); + ASSERT(Common::IsAligned(map_addr, PageSize)); + system.Memory().MapMemoryRegion(page_table_impl, addr, num_pages * PageSize, map_addr); + break; + } + case OperationType::ChangePermissions: + case OperationType::ChangePermissionsAndRefresh: + break; + default: + UNREACHABLE(); + } + return RESULT_SUCCESS; +} + +constexpr VAddr PageTable::GetRegionAddress(MemoryState state) const { + switch (state) { + case MemoryState::Free: + case MemoryState::Kernel: + return address_space_start; + case MemoryState::Normal: + return heap_region_start; + case MemoryState::Ipc: + case MemoryState::NonSecureIpc: + case MemoryState::NonDeviceIpc: + return alias_region_start; + case MemoryState::Stack: + return stack_region_start; + case MemoryState::Io: + case MemoryState::Static: + case MemoryState::ThreadLocal: + return kernel_map_region_start; + case MemoryState::Shared: + case MemoryState::AliasCode: + case MemoryState::AliasCodeData: + case MemoryState::Transfered: + case MemoryState::SharedTransfered: + case MemoryState::SharedCode: + case MemoryState::GeneratedCode: + case MemoryState::CodeOut: + return alias_code_region_start; + case MemoryState::Code: + case MemoryState::CodeData: + return code_region_start; + default: + UNREACHABLE(); + return {}; + } +} + +constexpr std::size_t PageTable::GetRegionSize(MemoryState state) const { + switch (state) { + case MemoryState::Free: + case MemoryState::Kernel: + return address_space_end - address_space_start; + case MemoryState::Normal: + return heap_region_end - heap_region_start; + case MemoryState::Ipc: + case MemoryState::NonSecureIpc: + case MemoryState::NonDeviceIpc: + return alias_region_end - alias_region_start; + case MemoryState::Stack: + return stack_region_end - stack_region_start; + case MemoryState::Io: + case MemoryState::Static: + case MemoryState::ThreadLocal: + return kernel_map_region_end - kernel_map_region_start; + case MemoryState::Shared: + case MemoryState::AliasCode: + case MemoryState::AliasCodeData: + case MemoryState::Transfered: + case MemoryState::SharedTransfered: + case MemoryState::SharedCode: + case MemoryState::GeneratedCode: + case MemoryState::CodeOut: + return alias_code_region_end - alias_code_region_start; + case MemoryState::Code: + case MemoryState::CodeData: + return code_region_end - code_region_start; + default: + UNREACHABLE(); + return {}; + } +} + +constexpr bool PageTable::CanContain(VAddr addr, std::size_t size, MemoryState state) const { + const VAddr end{addr + size}; + const VAddr last{end - 1}; + const VAddr region_start{GetRegionAddress(state)}; + const std::size_t region_size{GetRegionSize(state)}; + const bool is_in_region{region_start <= addr && addr < end && + last <= region_start + region_size - 1}; + const bool is_in_heap{!(end <= heap_region_start || heap_region_end <= addr)}; + const bool is_in_alias{!(end <= alias_region_start || alias_region_end <= addr)}; + + switch (state) { + case MemoryState::Free: + case MemoryState::Kernel: + return is_in_region; + case MemoryState::Io: + case MemoryState::Static: + case MemoryState::Code: + case MemoryState::CodeData: + case MemoryState::Shared: + case MemoryState::AliasCode: + case MemoryState::AliasCodeData: + case MemoryState::Stack: + case MemoryState::ThreadLocal: + case MemoryState::Transfered: + case MemoryState::SharedTransfered: + case MemoryState::SharedCode: + case MemoryState::GeneratedCode: + case MemoryState::CodeOut: + return is_in_region && !is_in_heap && !is_in_alias; + case MemoryState::Normal: + ASSERT(is_in_heap); + return is_in_region && !is_in_alias; + case MemoryState::Ipc: + case MemoryState::NonSecureIpc: + case MemoryState::NonDeviceIpc: + ASSERT(is_in_alias); + return is_in_region && !is_in_heap; + default: + return false; + } +} + +constexpr ResultCode PageTable::CheckMemoryState(const MemoryInfo& info, MemoryState state_mask, + MemoryState state, MemoryPermission perm_mask, + MemoryPermission perm, MemoryAttribute attr_mask, + MemoryAttribute attr) const { + // Validate the states match expectation + if ((info.state & state_mask) != state) { + return ERR_INVALID_ADDRESS_STATE; + } + if ((info.perm & perm_mask) != perm) { + return ERR_INVALID_ADDRESS_STATE; + } + if ((info.attribute & attr_mask) != attr) { + return ERR_INVALID_ADDRESS_STATE; + } + + return RESULT_SUCCESS; +} + +ResultCode PageTable::CheckMemoryState(MemoryState* out_state, MemoryPermission* out_perm, + MemoryAttribute* out_attr, VAddr addr, std::size_t size, + MemoryState state_mask, MemoryState state, + MemoryPermission perm_mask, MemoryPermission perm, + MemoryAttribute attr_mask, MemoryAttribute attr, + MemoryAttribute ignore_attr) { + std::lock_guard lock{page_table_lock}; + + // Get information about the first block + const VAddr last_addr{addr + size - 1}; + MemoryBlockManager::const_iterator it{block_manager->FindIterator(addr)}; + MemoryInfo info{it->GetMemoryInfo()}; + + // Validate all blocks in the range have correct state + const MemoryState first_state{info.state}; + const MemoryPermission first_perm{info.perm}; + const MemoryAttribute first_attr{info.attribute}; + + while (true) { + // Validate the current block + if (!(info.state == first_state)) { + return ERR_INVALID_ADDRESS_STATE; + } + if (!(info.perm == first_perm)) { + return ERR_INVALID_ADDRESS_STATE; + } + if (!((info.attribute | static_cast<MemoryAttribute>(ignore_attr)) == + (first_attr | static_cast<MemoryAttribute>(ignore_attr)))) { + return ERR_INVALID_ADDRESS_STATE; + } + + // Validate against the provided masks + CASCADE_CODE(CheckMemoryState(info, state_mask, state, perm_mask, perm, attr_mask, attr)); + + // Break once we're done + if (last_addr <= info.GetLastAddress()) { + break; + } + + // Advance our iterator + it++; + ASSERT(it != block_manager->cend()); + info = it->GetMemoryInfo(); + } + + // Write output state + if (out_state) { + *out_state = first_state; + } + if (out_perm) { + *out_perm = first_perm; + } + if (out_attr) { + *out_attr = first_attr & static_cast<MemoryAttribute>(~ignore_attr); + } + + return RESULT_SUCCESS; +} + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/page_table.h b/src/core/hle/kernel/memory/page_table.h new file mode 100644 index 000000000..80384ab0f --- /dev/null +++ b/src/core/hle/kernel/memory/page_table.h @@ -0,0 +1,276 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <list> +#include <memory> +#include <mutex> + +#include "common/common_funcs.h" +#include "common/common_types.h" +#include "common/page_table.h" +#include "core/file_sys/program_metadata.h" +#include "core/hle/kernel/memory/memory_block.h" +#include "core/hle/kernel/memory/memory_manager.h" + +namespace Core { +class System; +} + +namespace Kernel::Memory { + +class MemoryBlockManager; + +class PageTable final : NonCopyable { +public: + explicit PageTable(Core::System& system); + + ResultCode InitializeForProcess(FileSys::ProgramAddressSpaceType as_type, bool enable_aslr, + VAddr code_addr, std::size_t code_size, + Memory::MemoryManager::Pool pool); + ResultCode MapProcessCode(VAddr addr, std::size_t pages_count, MemoryState state, + MemoryPermission perm); + ResultCode MapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size); + ResultCode UnmapProcessCodeMemory(VAddr dst_addr, VAddr src_addr, std::size_t size); + ResultCode MapPhysicalMemory(VAddr addr, std::size_t size); + ResultCode UnmapPhysicalMemory(VAddr addr, std::size_t size); + ResultCode UnmapMemory(VAddr addr, std::size_t size); + ResultCode Map(VAddr dst_addr, VAddr src_addr, std::size_t size); + ResultCode Unmap(VAddr dst_addr, VAddr src_addr, std::size_t size); + ResultCode MapPages(VAddr addr, PageLinkedList& page_linked_list, MemoryState state, + MemoryPermission perm); + ResultCode SetCodeMemoryPermission(VAddr addr, std::size_t size, MemoryPermission perm); + MemoryInfo QueryInfo(VAddr addr); + ResultCode ReserveTransferMemory(VAddr addr, std::size_t size, MemoryPermission perm); + ResultCode ResetTransferMemory(VAddr addr, std::size_t size); + ResultCode SetMemoryAttribute(VAddr addr, std::size_t size, MemoryAttribute mask, + MemoryAttribute value); + ResultCode SetHeapCapacity(std::size_t new_heap_capacity); + ResultVal<VAddr> SetHeapSize(std::size_t size); + ResultVal<VAddr> AllocateAndMapMemory(std::size_t needed_num_pages, std::size_t align, + bool is_map_only, VAddr region_start, + std::size_t region_num_pages, MemoryState state, + MemoryPermission perm, PAddr map_addr = 0); + + Common::PageTable& PageTableImpl() { + return page_table_impl; + } + + const Common::PageTable& PageTableImpl() const { + return page_table_impl; + } + +private: + enum class OperationType : u32 { + Map, + MapGroup, + Unmap, + ChangePermissions, + ChangePermissionsAndRefresh, + }; + + static constexpr MemoryAttribute DefaultMemoryIgnoreAttr = + MemoryAttribute::DontCareMask | MemoryAttribute::IpcLocked | MemoryAttribute::DeviceShared; + + ResultCode InitializeMemoryLayout(VAddr start, VAddr end); + ResultCode MapPages(VAddr addr, const PageLinkedList& page_linked_list, MemoryPermission perm); + void MapPhysicalMemory(PageLinkedList& page_linked_list, VAddr start, VAddr end); + bool IsRegionMapped(VAddr address, u64 size); + bool IsRegionContiguous(VAddr addr, u64 size) const; + void AddRegionToPages(VAddr start, std::size_t num_pages, PageLinkedList& page_linked_list); + MemoryInfo QueryInfoImpl(VAddr addr); + VAddr AllocateVirtualMemory(VAddr start, std::size_t region_num_pages, u64 needed_num_pages, + std::size_t align); + ResultCode Operate(VAddr addr, std::size_t num_pages, const PageLinkedList& page_group, + OperationType operation); + ResultCode Operate(VAddr addr, std::size_t num_pages, MemoryPermission perm, + OperationType operation, PAddr map_addr = 0); + constexpr VAddr GetRegionAddress(MemoryState state) const; + constexpr std::size_t GetRegionSize(MemoryState state) const; + constexpr bool CanContain(VAddr addr, std::size_t size, MemoryState state) const; + + constexpr ResultCode CheckMemoryState(const MemoryInfo& info, MemoryState state_mask, + MemoryState state, MemoryPermission perm_mask, + MemoryPermission perm, MemoryAttribute attr_mask, + MemoryAttribute attr) const; + ResultCode CheckMemoryState(MemoryState* out_state, MemoryPermission* out_perm, + MemoryAttribute* out_attr, VAddr addr, std::size_t size, + MemoryState state_mask, MemoryState state, + MemoryPermission perm_mask, MemoryPermission perm, + MemoryAttribute attr_mask, MemoryAttribute attr, + MemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr); + ResultCode CheckMemoryState(VAddr addr, std::size_t size, MemoryState state_mask, + MemoryState state, MemoryPermission perm_mask, + MemoryPermission perm, MemoryAttribute attr_mask, + MemoryAttribute attr, + MemoryAttribute ignore_attr = DefaultMemoryIgnoreAttr) { + return CheckMemoryState(nullptr, nullptr, nullptr, addr, size, state_mask, state, perm_mask, + perm, attr_mask, attr, ignore_attr); + } + + std::recursive_mutex page_table_lock; + std::unique_ptr<MemoryBlockManager> block_manager; + +public: + constexpr VAddr GetAddressSpaceStart() const { + return address_space_start; + } + constexpr VAddr GetAddressSpaceEnd() const { + return address_space_end; + } + constexpr std::size_t GetAddressSpaceSize() const { + return address_space_end - address_space_start; + } + constexpr VAddr GetHeapRegionStart() const { + return heap_region_start; + } + constexpr VAddr GetHeapRegionEnd() const { + return heap_region_end; + } + constexpr std::size_t GetHeapRegionSize() const { + return heap_region_end - heap_region_start; + } + constexpr VAddr GetAliasRegionStart() const { + return alias_region_start; + } + constexpr VAddr GetAliasRegionEnd() const { + return alias_region_end; + } + constexpr std::size_t GetAliasRegionSize() const { + return alias_region_end - alias_region_start; + } + constexpr VAddr GetStackRegionStart() const { + return stack_region_start; + } + constexpr VAddr GetStackRegionEnd() const { + return stack_region_end; + } + constexpr std::size_t GetStackRegionSize() const { + return stack_region_end - stack_region_start; + } + constexpr VAddr GetKernelMapRegionStart() const { + return kernel_map_region_start; + } + constexpr VAddr GetKernelMapRegionEnd() const { + return kernel_map_region_end; + } + constexpr VAddr GetCodeRegionStart() const { + return code_region_start; + } + constexpr VAddr GetCodeRegionEnd() const { + return code_region_end; + } + constexpr VAddr GetAliasCodeRegionStart() const { + return alias_code_region_start; + } + constexpr VAddr GetAliasCodeRegionSize() const { + return alias_code_region_end - alias_code_region_start; + } + constexpr std::size_t GetAddressSpaceWidth() const { + return address_space_width; + } + constexpr std::size_t GetHeapSize() { + return current_heap_addr - heap_region_start; + } + constexpr std::size_t GetTotalHeapSize() { + return GetHeapSize() + physical_memory_usage; + } + constexpr bool IsInsideAddressSpace(VAddr address, std::size_t size) const { + return address_space_start <= address && address + size - 1 <= address_space_end - 1; + } + constexpr bool IsOutsideAliasRegion(VAddr address, std::size_t size) const { + return alias_region_start > address || address + size - 1 > alias_region_end - 1; + } + constexpr bool IsOutsideStackRegion(VAddr address, std::size_t size) const { + return stack_region_start > address || address + size - 1 > stack_region_end - 1; + } + constexpr bool IsInvalidRegion(VAddr address, std::size_t size) const { + return address + size - 1 > GetAliasCodeRegionStart() + GetAliasCodeRegionSize() - 1; + } + constexpr bool IsInsideHeapRegion(VAddr address, std::size_t size) const { + return address + size > heap_region_start && heap_region_end > address; + } + constexpr bool IsInsideAliasRegion(VAddr address, std::size_t size) const { + return address + size > alias_region_start && alias_region_end > address; + } + constexpr bool IsOutsideASLRRegion(VAddr address, std::size_t size) const { + if (IsInvalidRegion(address, size)) { + return true; + } + if (IsInsideHeapRegion(address, size)) { + return true; + } + if (IsInsideAliasRegion(address, size)) { + return true; + } + return {}; + } + constexpr bool IsInsideASLRRegion(VAddr address, std::size_t size) const { + return !IsOutsideASLRRegion(address, size); + } + constexpr PAddr GetPhysicalAddr(VAddr addr) { + return page_table_impl.backing_addr[addr >> Memory::PageBits] + addr; + } + +private: + constexpr bool Contains(VAddr addr) const { + return address_space_start <= addr && addr <= address_space_end - 1; + } + constexpr bool Contains(VAddr addr, std::size_t size) const { + return address_space_start <= addr && addr < addr + size && + addr + size - 1 <= address_space_end - 1; + } + constexpr bool IsKernel() const { + return is_kernel; + } + constexpr bool IsAslrEnabled() const { + return is_aslr_enabled; + } + + constexpr std::size_t GetNumGuardPages() const { + return IsKernel() ? 1 : 4; + } + + constexpr bool ContainsPages(VAddr addr, std::size_t num_pages) const { + return (address_space_start <= addr) && + (num_pages <= (address_space_end - address_space_start) / PageSize) && + (addr + num_pages * PageSize - 1 <= address_space_end - 1); + } + +private: + VAddr address_space_start{}; + VAddr address_space_end{}; + VAddr heap_region_start{}; + VAddr heap_region_end{}; + VAddr current_heap_end{}; + VAddr alias_region_start{}; + VAddr alias_region_end{}; + VAddr stack_region_start{}; + VAddr stack_region_end{}; + VAddr kernel_map_region_start{}; + VAddr kernel_map_region_end{}; + VAddr code_region_start{}; + VAddr code_region_end{}; + VAddr alias_code_region_start{}; + VAddr alias_code_region_end{}; + VAddr current_heap_addr{}; + + std::size_t heap_capacity{}; + std::size_t physical_memory_usage{}; + std::size_t max_heap_size{}; + std::size_t max_physical_memory_size{}; + std::size_t address_space_width{}; + + bool is_kernel{}; + bool is_aslr_enabled{}; + + MemoryManager::Pool memory_pool{MemoryManager::Pool::Application}; + + Common::PageTable page_table_impl; + + Core::System& system; +}; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/slab_heap.h b/src/core/hle/kernel/memory/slab_heap.h new file mode 100644 index 000000000..be95fc3f7 --- /dev/null +++ b/src/core/hle/kernel/memory/slab_heap.h @@ -0,0 +1,164 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +// This file references various implementation details from Atmosphère, an open-source firmware for +// the Nintendo Switch. Copyright 2018-2020 Atmosphère-NX. + +#pragma once + +#include <atomic> + +#include "common/assert.h" +#include "common/common_funcs.h" +#include "common/common_types.h" + +namespace Kernel::Memory { + +namespace impl { + +class SlabHeapImpl final : NonCopyable { +public: + struct Node { + Node* next{}; + }; + + constexpr SlabHeapImpl() = default; + + void Initialize(std::size_t size) { + ASSERT(head == nullptr); + obj_size = size; + } + + constexpr std::size_t GetObjectSize() const { + return obj_size; + } + + Node* GetHead() const { + return head; + } + + void* Allocate() { + Node* ret = head.load(); + + do { + if (ret == nullptr) { + break; + } + } while (!head.compare_exchange_weak(ret, ret->next)); + + return ret; + } + + void Free(void* obj) { + Node* node = static_cast<Node*>(obj); + + Node* cur_head = head.load(); + do { + node->next = cur_head; + } while (!head.compare_exchange_weak(cur_head, node)); + } + +private: + std::atomic<Node*> head{}; + std::size_t obj_size{}; +}; + +} // namespace impl + +class SlabHeapBase : NonCopyable { +public: + constexpr SlabHeapBase() = default; + + constexpr bool Contains(uintptr_t addr) const { + return start <= addr && addr < end; + } + + constexpr std::size_t GetSlabHeapSize() const { + return (end - start) / GetObjectSize(); + } + + constexpr std::size_t GetObjectSize() const { + return impl.GetObjectSize(); + } + + constexpr uintptr_t GetSlabHeapAddress() const { + return start; + } + + std::size_t GetObjectIndexImpl(const void* obj) const { + return (reinterpret_cast<uintptr_t>(obj) - start) / GetObjectSize(); + } + + std::size_t GetPeakIndex() const { + return GetObjectIndexImpl(reinterpret_cast<const void*>(peak)); + } + + void* AllocateImpl() { + return impl.Allocate(); + } + + void FreeImpl(void* obj) { + // Don't allow freeing an object that wasn't allocated from this heap + ASSERT(Contains(reinterpret_cast<uintptr_t>(obj))); + impl.Free(obj); + } + + void InitializeImpl(std::size_t obj_size, void* memory, std::size_t memory_size) { + // Ensure we don't initialize a slab using null memory + ASSERT(memory != nullptr); + + // Initialize the base allocator + impl.Initialize(obj_size); + + // Set our tracking variables + const std::size_t num_obj = (memory_size / obj_size); + start = reinterpret_cast<uintptr_t>(memory); + end = start + num_obj * obj_size; + peak = start; + + // Free the objects + u8* cur = reinterpret_cast<u8*>(end); + + for (std::size_t i{}; i < num_obj; i++) { + cur -= obj_size; + impl.Free(cur); + } + } + +private: + using Impl = impl::SlabHeapImpl; + + Impl impl; + uintptr_t peak{}; + uintptr_t start{}; + uintptr_t end{}; +}; + +template <typename T> +class SlabHeap final : public SlabHeapBase { +public: + constexpr SlabHeap() : SlabHeapBase() {} + + void Initialize(void* memory, std::size_t memory_size) { + InitializeImpl(sizeof(T), memory, memory_size); + } + + T* Allocate() { + T* obj = static_cast<T*>(AllocateImpl()); + if (obj != nullptr) { + new (obj) T(); + } + return obj; + } + + void Free(T* obj) { + FreeImpl(obj); + } + + constexpr std::size_t GetObjectIndex(const T* obj) const { + return GetObjectIndexImpl(obj); + } +}; + +} // namespace Kernel::Memory diff --git a/src/core/hle/kernel/memory/system_control.cpp b/src/core/hle/kernel/memory/system_control.cpp new file mode 100644 index 000000000..9cae3c6cb --- /dev/null +++ b/src/core/hle/kernel/memory/system_control.cpp @@ -0,0 +1,41 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <random> + +#include "core/hle/kernel/memory/system_control.h" + +namespace Kernel::Memory::SystemControl { + +u64 GenerateRandomU64ForInit() { + static std::random_device device; + static std::mt19937 gen(device()); + static std::uniform_int_distribution<u64> distribution(1, std::numeric_limits<u64>::max()); + return distribution(gen); +} + +template <typename F> +u64 GenerateUniformRange(u64 min, u64 max, F f) { + /* Handle the case where the difference is too large to represent. */ + if (max == std::numeric_limits<u64>::max() && min == std::numeric_limits<u64>::min()) { + return f(); + } + + /* Iterate until we get a value in range. */ + const u64 range_size = ((max + 1) - min); + const u64 effective_max = (std::numeric_limits<u64>::max() / range_size) * range_size; + while (true) { + if (const u64 rnd = f(); rnd < effective_max) { + return min + (rnd % range_size); + } + } +} + +u64 GenerateRandomRange(u64 min, u64 max) { + return GenerateUniformRange(min, max, GenerateRandomU64ForInit); +} + +} // namespace Kernel::Memory::SystemControl diff --git a/src/core/hle/kernel/memory/system_control.h b/src/core/hle/kernel/memory/system_control.h new file mode 100644 index 000000000..3fa93111d --- /dev/null +++ b/src/core/hle/kernel/memory/system_control.h @@ -0,0 +1,18 @@ +// Copyright 2020 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/common_types.h" + +namespace Kernel::Memory::SystemControl { + +u64 GenerateRandomU64ForInit(); + +template <typename F> +u64 GenerateUniformRange(u64 min, u64 max, F f); + +u64 GenerateRandomRange(u64 min, u64 max); + +} // namespace Kernel::Memory::SystemControl diff --git a/src/core/hle/kernel/physical_memory.h b/src/core/hle/kernel/physical_memory.h index b689e8e8b..7a0266780 100644 --- a/src/core/hle/kernel/physical_memory.h +++ b/src/core/hle/kernel/physical_memory.h @@ -4,6 +4,8 @@ #pragma once +#include <vector> + #include "common/alignment.h" namespace Kernel { diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp index edc414d69..36724569f 100644 --- a/src/core/hle/kernel/process.cpp +++ b/src/core/hle/kernel/process.cpp @@ -10,15 +10,18 @@ #include "common/assert.h" #include "common/logging/log.h" #include "core/core.h" +#include "core/device_memory.h" #include "core/file_sys/program_metadata.h" #include "core/hle/kernel/code_set.h" #include "core/hle/kernel/errors.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/memory/memory_block_manager.h" +#include "core/hle/kernel/memory/page_table.h" +#include "core/hle/kernel/memory/slab_heap.h" #include "core/hle/kernel/process.h" #include "core/hle/kernel/resource_limit.h" #include "core/hle/kernel/scheduler.h" #include "core/hle/kernel/thread.h" -#include "core/hle/kernel/vm_manager.h" #include "core/memory.h" #include "core/settings.h" @@ -31,10 +34,8 @@ namespace { * @param kernel The kernel instance to create the main thread under. * @param priority The priority to give the main thread */ -void SetupMainThread(Process& owner_process, KernelCore& kernel, u32 priority) { - const auto& vm_manager = owner_process.VMManager(); - const VAddr entry_point = vm_manager.GetCodeRegionBaseAddress(); - const VAddr stack_top = vm_manager.GetTLSIORegionEndAddress(); +void SetupMainThread(Process& owner_process, KernelCore& kernel, u32 priority, VAddr stack_top) { + const VAddr entry_point = owner_process.PageTable().GetCodeRegionStart(); auto thread_res = Thread::Create(kernel, "main", entry_point, priority, 0, owner_process.GetIdealCore(), stack_top, owner_process); @@ -42,6 +43,8 @@ void SetupMainThread(Process& owner_process, KernelCore& kernel, u32 priority) { // Register 1 must be a handle to the main thread const Handle thread_handle = owner_process.GetHandleTable().Create(thread).Unwrap(); + thread->GetContext32().cpu_registers[0] = 0; + thread->GetContext64().cpu_registers[0] = 0; thread->GetContext32().cpu_registers[1] = thread_handle; thread->GetContext64().cpu_registers[1] = thread_handle; @@ -57,7 +60,8 @@ void SetupMainThread(Process& owner_process, KernelCore& kernel, u32 priority) { // (whichever page happens to have an available slot). class TLSPage { public: - static constexpr std::size_t num_slot_entries = Memory::PAGE_SIZE / Memory::TLS_ENTRY_SIZE; + static constexpr std::size_t num_slot_entries = + Core::Memory::PAGE_SIZE / Core::Memory::TLS_ENTRY_SIZE; explicit TLSPage(VAddr address) : base_address{address} {} @@ -76,7 +80,7 @@ public: } is_slot_used[i] = true; - return base_address + (i * Memory::TLS_ENTRY_SIZE); + return base_address + (i * Core::Memory::TLS_ENTRY_SIZE); } return std::nullopt; @@ -86,15 +90,15 @@ public: // Ensure that all given addresses are consistent with how TLS pages // are intended to be used when releasing slots. ASSERT(IsWithinPage(address)); - ASSERT((address % Memory::TLS_ENTRY_SIZE) == 0); + ASSERT((address % Core::Memory::TLS_ENTRY_SIZE) == 0); - const std::size_t index = (address - base_address) / Memory::TLS_ENTRY_SIZE; + const std::size_t index = (address - base_address) / Core::Memory::TLS_ENTRY_SIZE; is_slot_used[index] = false; } private: bool IsWithinPage(VAddr address) const { - return base_address <= address && address < base_address + Memory::PAGE_SIZE; + return base_address <= address && address < base_address + Core::Memory::PAGE_SIZE; } VAddr base_address; @@ -106,7 +110,7 @@ std::shared_ptr<Process> Process::Create(Core::System& system, std::string name, std::shared_ptr<Process> process = std::make_shared<Process>(system); process->name = std::move(name); - process->resource_limit = kernel.GetSystemResourceLimit(); + process->resource_limit = ResourceLimit::Create(kernel); process->status = ProcessStatus::Created; process->program_id = 0; process->process_id = type == ProcessType::KernelInternal ? kernel.CreateNewKernelProcessID() @@ -127,7 +131,14 @@ std::shared_ptr<ResourceLimit> Process::GetResourceLimit() const { } u64 Process::GetTotalPhysicalMemoryAvailable() const { - return vm_manager.GetTotalPhysicalMemoryAvailable(); + const u64 capacity{resource_limit->GetCurrentResourceValue(ResourceType::PhysicalMemory) + + page_table->GetTotalHeapSize() + image_size + main_thread_stack_size}; + + if (capacity < memory_usage_capacity) { + return capacity; + } + + return memory_usage_capacity; } u64 Process::GetTotalPhysicalMemoryAvailableWithoutSystemResource() const { @@ -135,8 +146,7 @@ u64 Process::GetTotalPhysicalMemoryAvailableWithoutSystemResource() const { } u64 Process::GetTotalPhysicalMemoryUsed() const { - return vm_manager.GetCurrentHeapSize() + main_thread_stack_size + code_memory_size + - GetSystemResourceUsage(); + return image_size + main_thread_stack_size + page_table->GetTotalHeapSize(); } u64 Process::GetTotalPhysicalMemoryUsedWithoutSystemResource() const { @@ -209,33 +219,82 @@ ResultCode Process::ClearSignalState() { return RESULT_SUCCESS; } -ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata) { +ResultCode Process::LoadFromMetadata(const FileSys::ProgramMetadata& metadata, + std::size_t code_size) { program_id = metadata.GetTitleID(); ideal_core = metadata.GetMainThreadCore(); is_64bit_process = metadata.Is64BitProgram(); system_resource_size = metadata.GetSystemResourceSize(); + image_size = code_size; + + // Initialize proces address space + if (const ResultCode result{ + page_table->InitializeForProcess(metadata.GetAddressSpaceType(), false, 0x8000000, + code_size, Memory::MemoryManager::Pool::Application)}; + result.IsError()) { + return result; + } - vm_manager.Reset(metadata.GetAddressSpaceType()); + // Map process code region + if (const ResultCode result{page_table->MapProcessCode( + page_table->GetCodeRegionStart(), code_size / Memory::PageSize, + Memory::MemoryState::Code, Memory::MemoryPermission::None)}; + result.IsError()) { + return result; + } - const auto& caps = metadata.GetKernelCapabilities(); - const auto capability_init_result = - capabilities.InitializeForUserProcess(caps.data(), caps.size(), vm_manager); - if (capability_init_result.IsError()) { - return capability_init_result; + // Initialize process capabilities + const auto& caps{metadata.GetKernelCapabilities()}; + if (const ResultCode result{ + capabilities.InitializeForUserProcess(caps.data(), caps.size(), *page_table)}; + result.IsError()) { + return result; } + // Set memory usage capacity + switch (metadata.GetAddressSpaceType()) { + case FileSys::ProgramAddressSpaceType::Is32Bit: + case FileSys::ProgramAddressSpaceType::Is36Bit: + case FileSys::ProgramAddressSpaceType::Is39Bit: + memory_usage_capacity = page_table->GetHeapRegionEnd() - page_table->GetHeapRegionStart(); + break; + + case FileSys::ProgramAddressSpaceType::Is32BitNoMap: + memory_usage_capacity = page_table->GetHeapRegionEnd() - page_table->GetHeapRegionStart() + + page_table->GetAliasRegionEnd() - page_table->GetAliasRegionStart(); + break; + + default: + UNREACHABLE(); + } + + // Set initial resource limits + resource_limit->SetLimitValue( + ResourceType::PhysicalMemory, + kernel.MemoryManager().GetSize(Memory::MemoryManager::Pool::Application)); + resource_limit->SetLimitValue(ResourceType::Threads, 608); + resource_limit->SetLimitValue(ResourceType::Events, 700); + resource_limit->SetLimitValue(ResourceType::TransferMemory, 128); + resource_limit->SetLimitValue(ResourceType::Sessions, 894); + ASSERT(resource_limit->Reserve(ResourceType::PhysicalMemory, code_size)); + + // Create TLS region + tls_region_address = CreateTLSRegion(); + return handle_table.SetSize(capabilities.GetHandleTableSize()); } void Process::Run(s32 main_thread_priority, u64 stack_size) { AllocateMainThreadStack(stack_size); - tls_region_address = CreateTLSRegion(); - vm_manager.LogLayout(); + const std::size_t heap_capacity{memory_usage_capacity - main_thread_stack_size - image_size}; + ASSERT(!page_table->SetHeapCapacity(heap_capacity).IsError()); ChangeStatus(ProcessStatus::Running); - SetupMainThread(*this, kernel, main_thread_priority); + SetupMainThread(*this, kernel, main_thread_priority, main_thread_stack_top); + resource_limit->Reserve(ResourceType::Threads, 1); + resource_limit->Reserve(ResourceType::PhysicalMemory, main_thread_stack_size); } void Process::PrepareForTermination() { @@ -279,32 +338,37 @@ static auto FindTLSPageWithAvailableSlots(std::vector<TLSPage>& tls_pages) { } VAddr Process::CreateTLSRegion() { - auto tls_page_iter = FindTLSPageWithAvailableSlots(tls_pages); + if (auto tls_page_iter{FindTLSPageWithAvailableSlots(tls_pages)}; + tls_page_iter != tls_pages.cend()) { + return *tls_page_iter->ReserveSlot(); + } - if (tls_page_iter == tls_pages.cend()) { - const auto region_address = - vm_manager.FindFreeRegion(vm_manager.GetTLSIORegionBaseAddress(), - vm_manager.GetTLSIORegionEndAddress(), Memory::PAGE_SIZE); - ASSERT(region_address.Succeeded()); + Memory::Page* const tls_page_ptr{kernel.GetUserSlabHeapPages().Allocate()}; + ASSERT(tls_page_ptr); - const auto map_result = vm_manager.MapMemoryBlock( - *region_address, std::make_shared<PhysicalMemory>(Memory::PAGE_SIZE), 0, - Memory::PAGE_SIZE, MemoryState::ThreadLocal); - ASSERT(map_result.Succeeded()); + const VAddr start{page_table->GetKernelMapRegionStart()}; + const VAddr size{page_table->GetKernelMapRegionEnd() - start}; + const PAddr tls_map_addr{system.DeviceMemory().GetPhysicalAddr(tls_page_ptr)}; + const VAddr tls_page_addr{ + page_table + ->AllocateAndMapMemory(1, Memory::PageSize, true, start, size / Memory::PageSize, + Memory::MemoryState::ThreadLocal, + Memory::MemoryPermission::ReadAndWrite, tls_map_addr) + .ValueOr(0)}; - tls_pages.emplace_back(*region_address); + ASSERT(tls_page_addr); - const auto reserve_result = tls_pages.back().ReserveSlot(); - ASSERT(reserve_result.has_value()); + std::memset(tls_page_ptr, 0, Memory::PageSize); + tls_pages.emplace_back(tls_page_addr); - return *reserve_result; - } + const auto reserve_result{tls_pages.back().ReserveSlot()}; + ASSERT(reserve_result.has_value()); - return *tls_page_iter->ReserveSlot(); + return *reserve_result; } void Process::FreeTLSRegion(VAddr tls_address) { - const VAddr aligned_address = Common::AlignDown(tls_address, Memory::PAGE_SIZE); + const VAddr aligned_address = Common::AlignDown(tls_address, Core::Memory::PAGE_SIZE); auto iter = std::find_if(tls_pages.begin(), tls_pages.end(), [aligned_address](const auto& page) { return page.GetBaseAddress() == aligned_address; @@ -317,28 +381,22 @@ void Process::FreeTLSRegion(VAddr tls_address) { iter->ReleaseSlot(tls_address); } -void Process::LoadModule(CodeSet module_, VAddr base_addr) { - code_memory_size += module_.memory.size(); - - const auto memory = std::make_shared<PhysicalMemory>(std::move(module_.memory)); - - const auto MapSegment = [&](const CodeSet::Segment& segment, VMAPermission permissions, - MemoryState memory_state) { - const auto vma = vm_manager - .MapMemoryBlock(segment.addr + base_addr, memory, segment.offset, - segment.size, memory_state) - .Unwrap(); - vm_manager.Reprotect(vma, permissions); +void Process::LoadModule(CodeSet code_set, VAddr base_addr) { + const auto ReprotectSegment = [&](const CodeSet::Segment& segment, + Memory::MemoryPermission permission) { + page_table->SetCodeMemoryPermission(segment.addr + base_addr, segment.size, permission); }; - // Map CodeSet segments - MapSegment(module_.CodeSegment(), VMAPermission::ReadExecute, MemoryState::Code); - MapSegment(module_.RODataSegment(), VMAPermission::Read, MemoryState::CodeData); - MapSegment(module_.DataSegment(), VMAPermission::ReadWrite, MemoryState::CodeData); + system.Memory().WriteBlock(*this, base_addr, code_set.memory.data(), code_set.memory.size()); + + ReprotectSegment(code_set.CodeSegment(), Memory::MemoryPermission::ReadAndExecute); + ReprotectSegment(code_set.RODataSegment(), Memory::MemoryPermission::Read); + ReprotectSegment(code_set.DataSegment(), Memory::MemoryPermission::ReadAndWrite); } Process::Process(Core::System& system) - : SynchronizationObject{system.Kernel()}, vm_manager{system}, + : SynchronizationObject{system.Kernel()}, page_table{std::make_unique<Memory::PageTable>( + system)}, address_arbiter{system}, mutex{system}, system{system} {} Process::~Process() = default; @@ -361,16 +419,24 @@ void Process::ChangeStatus(ProcessStatus new_status) { Signal(); } -void Process::AllocateMainThreadStack(u64 stack_size) { +ResultCode Process::AllocateMainThreadStack(std::size_t stack_size) { + ASSERT(stack_size); + // The kernel always ensures that the given stack size is page aligned. - main_thread_stack_size = Common::AlignUp(stack_size, Memory::PAGE_SIZE); - - // Allocate and map the main thread stack - const VAddr mapping_address = vm_manager.GetTLSIORegionEndAddress() - main_thread_stack_size; - vm_manager - .MapMemoryBlock(mapping_address, std::make_shared<PhysicalMemory>(main_thread_stack_size), - 0, main_thread_stack_size, MemoryState::Stack) - .Unwrap(); + main_thread_stack_size = Common::AlignUp(stack_size, Memory::PageSize); + + const VAddr start{page_table->GetStackRegionStart()}; + const std::size_t size{page_table->GetStackRegionEnd() - start}; + + CASCADE_RESULT(main_thread_stack_top, + page_table->AllocateAndMapMemory( + main_thread_stack_size / Memory::PageSize, Memory::PageSize, false, start, + size / Memory::PageSize, Memory::MemoryState::Stack, + Memory::MemoryPermission::ReadAndWrite)); + + main_thread_stack_top += main_thread_stack_size; + + return RESULT_SUCCESS; } } // namespace Kernel diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h index 4887132a7..9dabe3568 100644 --- a/src/core/hle/kernel/process.h +++ b/src/core/hle/kernel/process.h @@ -16,7 +16,6 @@ #include "core/hle/kernel/mutex.h" #include "core/hle/kernel/process_capability.h" #include "core/hle/kernel/synchronization_object.h" -#include "core/hle/kernel/vm_manager.h" #include "core/hle/result.h" namespace Core { @@ -36,6 +35,10 @@ class TLSPage; struct CodeSet; +namespace Memory { +class PageTable; +} + enum class MemoryRegion : u16 { APPLICATION = 1, SYSTEM = 2, @@ -100,14 +103,14 @@ public: return HANDLE_TYPE; } - /// Gets a reference to the process' memory manager. - Kernel::VMManager& VMManager() { - return vm_manager; + /// Gets a reference to the process' page table. + Memory::PageTable& PageTable() { + return *page_table; } - /// Gets a const reference to the process' memory manager. - const Kernel::VMManager& VMManager() const { - return vm_manager; + /// Gets const a reference to the process' page table. + const Memory::PageTable& PageTable() const { + return *page_table; } /// Gets a reference to the process' handle table. @@ -273,7 +276,7 @@ public: * @returns RESULT_SUCCESS if all relevant metadata was able to be * loaded and parsed. Otherwise, an error code is returned. */ - ResultCode LoadFromMetadata(const FileSys::ProgramMetadata& metadata); + ResultCode LoadFromMetadata(const FileSys::ProgramMetadata& metadata, std::size_t code_size); /** * Starts the main application thread for this process. @@ -289,7 +292,7 @@ public: */ void PrepareForTermination(); - void LoadModule(CodeSet module_, VAddr base_addr); + void LoadModule(CodeSet code_set, VAddr base_addr); /////////////////////////////////////////////////////////////////////////////////////////////// // Thread-local storage management @@ -313,16 +316,10 @@ private: void ChangeStatus(ProcessStatus new_status); /// Allocates the main thread stack for the process, given the stack size in bytes. - void AllocateMainThreadStack(u64 stack_size); - - /// Memory manager for this process. - Kernel::VMManager vm_manager; - - /// Size of the main thread's stack in bytes. - u64 main_thread_stack_size = 0; + ResultCode AllocateMainThreadStack(std::size_t stack_size); - /// Size of the loaded code memory in bytes. - u64 code_memory_size = 0; + /// Memory manager for this process + std::unique_ptr<Memory::PageTable> page_table; /// Current status of the process ProcessStatus status{}; @@ -390,6 +387,18 @@ private: /// Name of this process std::string name; + + /// Address of the top of the main thread's stack + VAddr main_thread_stack_top{}; + + /// Size of the main thread's stack + std::size_t main_thread_stack_size{}; + + /// Memory usage capacity for the process + std::size_t memory_usage_capacity{}; + + /// Process total image size + std::size_t image_size{}; }; } // namespace Kernel diff --git a/src/core/hle/kernel/process_capability.cpp b/src/core/hle/kernel/process_capability.cpp index 583e35b79..48e5ae682 100644 --- a/src/core/hle/kernel/process_capability.cpp +++ b/src/core/hle/kernel/process_capability.cpp @@ -5,8 +5,8 @@ #include "common/bit_util.h" #include "core/hle/kernel/errors.h" #include "core/hle/kernel/handle_table.h" +#include "core/hle/kernel/memory/page_table.h" #include "core/hle/kernel/process_capability.h" -#include "core/hle/kernel/vm_manager.h" namespace Kernel { namespace { @@ -66,7 +66,7 @@ u32 GetFlagBitOffset(CapabilityType type) { ResultCode ProcessCapabilities::InitializeForKernelProcess(const u32* capabilities, std::size_t num_capabilities, - VMManager& vm_manager) { + Memory::PageTable& page_table) { Clear(); // Allow all cores and priorities. @@ -74,15 +74,15 @@ ResultCode ProcessCapabilities::InitializeForKernelProcess(const u32* capabiliti priority_mask = 0xFFFFFFFFFFFFFFFF; kernel_version = PackedKernelVersion; - return ParseCapabilities(capabilities, num_capabilities, vm_manager); + return ParseCapabilities(capabilities, num_capabilities, page_table); } ResultCode ProcessCapabilities::InitializeForUserProcess(const u32* capabilities, std::size_t num_capabilities, - VMManager& vm_manager) { + Memory::PageTable& page_table) { Clear(); - return ParseCapabilities(capabilities, num_capabilities, vm_manager); + return ParseCapabilities(capabilities, num_capabilities, page_table); } void ProcessCapabilities::InitializeForMetadatalessProcess() { @@ -105,7 +105,7 @@ void ProcessCapabilities::InitializeForMetadatalessProcess() { ResultCode ProcessCapabilities::ParseCapabilities(const u32* capabilities, std::size_t num_capabilities, - VMManager& vm_manager) { + Memory::PageTable& page_table) { u32 set_flags = 0; u32 set_svc_bits = 0; @@ -127,13 +127,13 @@ ResultCode ProcessCapabilities::ParseCapabilities(const u32* capabilities, return ERR_INVALID_COMBINATION; } - const auto result = HandleMapPhysicalFlags(descriptor, size_flags, vm_manager); + const auto result = HandleMapPhysicalFlags(descriptor, size_flags, page_table); if (result.IsError()) { return result; } } else { const auto result = - ParseSingleFlagCapability(set_flags, set_svc_bits, descriptor, vm_manager); + ParseSingleFlagCapability(set_flags, set_svc_bits, descriptor, page_table); if (result.IsError()) { return result; } @@ -144,7 +144,7 @@ ResultCode ProcessCapabilities::ParseCapabilities(const u32* capabilities, } ResultCode ProcessCapabilities::ParseSingleFlagCapability(u32& set_flags, u32& set_svc_bits, - u32 flag, VMManager& vm_manager) { + u32 flag, Memory::PageTable& page_table) { const auto type = GetCapabilityType(flag); if (type == CapabilityType::Unset) { @@ -172,7 +172,7 @@ ResultCode ProcessCapabilities::ParseSingleFlagCapability(u32& set_flags, u32& s case CapabilityType::Syscall: return HandleSyscallFlags(set_svc_bits, flag); case CapabilityType::MapIO: - return HandleMapIOFlags(flag, vm_manager); + return HandleMapIOFlags(flag, page_table); case CapabilityType::Interrupt: return HandleInterruptFlags(flag); case CapabilityType::ProgramType: @@ -269,12 +269,12 @@ ResultCode ProcessCapabilities::HandleSyscallFlags(u32& set_svc_bits, u32 flags) } ResultCode ProcessCapabilities::HandleMapPhysicalFlags(u32 flags, u32 size_flags, - VMManager& vm_manager) { + Memory::PageTable& page_table) { // TODO(Lioncache): Implement once the memory manager can handle this. return RESULT_SUCCESS; } -ResultCode ProcessCapabilities::HandleMapIOFlags(u32 flags, VMManager& vm_manager) { +ResultCode ProcessCapabilities::HandleMapIOFlags(u32 flags, Memory::PageTable& page_table) { // TODO(Lioncache): Implement once the memory manager can handle this. return RESULT_SUCCESS; } diff --git a/src/core/hle/kernel/process_capability.h b/src/core/hle/kernel/process_capability.h index 5cdd80747..ea9d12c16 100644 --- a/src/core/hle/kernel/process_capability.h +++ b/src/core/hle/kernel/process_capability.h @@ -12,7 +12,9 @@ union ResultCode; namespace Kernel { -class VMManager; +namespace Memory { +class PageTable; +} /// The possible types of programs that may be indicated /// by the program type capability descriptor. @@ -81,27 +83,27 @@ public: /// /// @param capabilities The capabilities to parse /// @param num_capabilities The number of capabilities to parse. - /// @param vm_manager The memory manager to use for handling any mapping-related + /// @param page_table The memory manager to use for handling any mapping-related /// operations (such as mapping IO memory, etc). /// /// @returns RESULT_SUCCESS if this capabilities instance was able to be initialized, /// otherwise, an error code upon failure. /// ResultCode InitializeForKernelProcess(const u32* capabilities, std::size_t num_capabilities, - VMManager& vm_manager); + Memory::PageTable& page_table); /// Initializes this process capabilities instance for a userland process. /// /// @param capabilities The capabilities to parse. /// @param num_capabilities The total number of capabilities to parse. - /// @param vm_manager The memory manager to use for handling any mapping-related + /// @param page_table The memory manager to use for handling any mapping-related /// operations (such as mapping IO memory, etc). /// /// @returns RESULT_SUCCESS if this capabilities instance was able to be initialized, /// otherwise, an error code upon failure. /// ResultCode InitializeForUserProcess(const u32* capabilities, std::size_t num_capabilities, - VMManager& vm_manager); + Memory::PageTable& page_table); /// Initializes this process capabilities instance for a process that does not /// have any metadata to parse. @@ -181,13 +183,13 @@ private: /// /// @param capabilities The sequence of capability descriptors to parse. /// @param num_capabilities The number of descriptors within the given sequence. - /// @param vm_manager The memory manager that will perform any memory + /// @param page_table The memory manager that will perform any memory /// mapping if necessary. /// /// @return RESULT_SUCCESS if no errors occur, otherwise an error code. /// ResultCode ParseCapabilities(const u32* capabilities, std::size_t num_capabilities, - VMManager& vm_manager); + Memory::PageTable& page_table); /// Attempts to parse a capability descriptor that is only represented by a /// single flag set. @@ -196,13 +198,13 @@ private: /// flags being initialized more than once when they shouldn't be. /// @param set_svc_bits Running set of bits representing the allowed supervisor calls mask. /// @param flag The flag to attempt to parse. - /// @param vm_manager The memory manager that will perform any memory + /// @param page_table The memory manager that will perform any memory /// mapping if necessary. /// /// @return RESULT_SUCCESS if no errors occurred, otherwise an error code. /// ResultCode ParseSingleFlagCapability(u32& set_flags, u32& set_svc_bits, u32 flag, - VMManager& vm_manager); + Memory::PageTable& page_table); /// Clears the internal state of this process capability instance. Necessary, /// to have a sane starting point due to us allowing running executables without @@ -226,10 +228,10 @@ private: ResultCode HandleSyscallFlags(u32& set_svc_bits, u32 flags); /// Handles flags related to mapping physical memory pages. - ResultCode HandleMapPhysicalFlags(u32 flags, u32 size_flags, VMManager& vm_manager); + ResultCode HandleMapPhysicalFlags(u32 flags, u32 size_flags, Memory::PageTable& page_table); /// Handles flags related to mapping IO pages. - ResultCode HandleMapIOFlags(u32 flags, VMManager& vm_manager); + ResultCode HandleMapIOFlags(u32 flags, Memory::PageTable& page_table); /// Handles flags related to the interrupt capability flags. ResultCode HandleInterruptFlags(u32 flags); diff --git a/src/core/hle/kernel/resource_limit.cpp b/src/core/hle/kernel/resource_limit.cpp index b53423462..96e5b9892 100644 --- a/src/core/hle/kernel/resource_limit.cpp +++ b/src/core/hle/kernel/resource_limit.cpp @@ -16,26 +16,60 @@ constexpr std::size_t ResourceTypeToIndex(ResourceType type) { ResourceLimit::ResourceLimit(KernelCore& kernel) : Object{kernel} {} ResourceLimit::~ResourceLimit() = default; +bool ResourceLimit::Reserve(ResourceType resource, s64 amount) { + return Reserve(resource, amount, 10000000000); +} + +bool ResourceLimit::Reserve(ResourceType resource, s64 amount, u64 timeout) { + const std::size_t index{ResourceTypeToIndex(resource)}; + + s64 new_value = current[index] + amount; + while (new_value > limit[index] && available[index] + amount <= limit[index]) { + // TODO(bunnei): This is wrong for multicore, we should wait the calling thread for timeout + new_value = current[index] + amount; + + if (timeout >= 0) { + break; + } + } + + if (new_value <= limit[index]) { + current[index] = new_value; + return true; + } + return false; +} + +void ResourceLimit::Release(ResourceType resource, u64 amount) { + Release(resource, amount, amount); +} + +void ResourceLimit::Release(ResourceType resource, u64 used_amount, u64 available_amount) { + const std::size_t index{ResourceTypeToIndex(resource)}; + + current[index] -= used_amount; + available[index] -= available_amount; +} + std::shared_ptr<ResourceLimit> ResourceLimit::Create(KernelCore& kernel) { return std::make_shared<ResourceLimit>(kernel); } s64 ResourceLimit::GetCurrentResourceValue(ResourceType resource) const { - return values.at(ResourceTypeToIndex(resource)); + return limit.at(ResourceTypeToIndex(resource)) - current.at(ResourceTypeToIndex(resource)); } s64 ResourceLimit::GetMaxResourceValue(ResourceType resource) const { - return limits.at(ResourceTypeToIndex(resource)); + return limit.at(ResourceTypeToIndex(resource)); } ResultCode ResourceLimit::SetLimitValue(ResourceType resource, s64 value) { - const auto index = ResourceTypeToIndex(resource); - - if (value < values[index]) { + const std::size_t index{ResourceTypeToIndex(resource)}; + if (current[index] <= value) { + limit[index] = value; + return RESULT_SUCCESS; + } else { return ERR_INVALID_STATE; } - - values[index] = value; - return RESULT_SUCCESS; } } // namespace Kernel diff --git a/src/core/hle/kernel/resource_limit.h b/src/core/hle/kernel/resource_limit.h index 53b89e621..936cc4d0f 100644 --- a/src/core/hle/kernel/resource_limit.h +++ b/src/core/hle/kernel/resource_limit.h @@ -51,6 +51,11 @@ public: return HANDLE_TYPE; } + bool Reserve(ResourceType resource, s64 amount); + bool Reserve(ResourceType resource, s64 amount, u64 timeout); + void Release(ResourceType resource, u64 amount); + void Release(ResourceType resource, u64 used_amount, u64 available_amount); + /** * Gets the current value for the specified resource. * @param resource Requested resource type @@ -91,10 +96,9 @@ private: using ResourceArray = std::array<s64, static_cast<std::size_t>(ResourceType::ResourceTypeCount)>; - /// Maximum values a resource type may reach. - ResourceArray limits{}; - /// Current resource limit values. - ResourceArray values{}; + ResourceArray limit{}; + ResourceArray current{}; + ResourceArray available{}; }; } // namespace Kernel diff --git a/src/core/hle/kernel/server_session.cpp b/src/core/hle/kernel/server_session.cpp index 4604e35c5..0f102ca44 100644 --- a/src/core/hle/kernel/server_session.cpp +++ b/src/core/hle/kernel/server_session.cpp @@ -134,7 +134,8 @@ ResultCode ServerSession::HandleDomainSyncRequest(Kernel::HLERequestContext& con return RESULT_SUCCESS; } -ResultCode ServerSession::QueueSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory) { +ResultCode ServerSession::QueueSyncRequest(std::shared_ptr<Thread> thread, + Core::Memory::Memory& memory) { u32* cmd_buf{reinterpret_cast<u32*>(memory.GetPointer(thread->GetTLSAddress()))}; std::shared_ptr<Kernel::HLERequestContext> context{ std::make_shared<Kernel::HLERequestContext>(SharedFrom(this), std::move(thread))}; @@ -178,7 +179,7 @@ ResultCode ServerSession::CompleteSyncRequest() { } ResultCode ServerSession::HandleSyncRequest(std::shared_ptr<Thread> thread, - Memory::Memory& memory) { + Core::Memory::Memory& memory) { Core::System::GetInstance().CoreTiming().ScheduleEvent(20000, request_event, {}); return QueueSyncRequest(std::move(thread), memory); } diff --git a/src/core/hle/kernel/server_session.h b/src/core/hle/kernel/server_session.h index 77e4f6721..403aaf10b 100644 --- a/src/core/hle/kernel/server_session.h +++ b/src/core/hle/kernel/server_session.h @@ -13,7 +13,7 @@ #include "core/hle/kernel/synchronization_object.h" #include "core/hle/result.h" -namespace Memory { +namespace Core::Memory { class Memory; } @@ -92,7 +92,7 @@ public: * * @returns ResultCode from the operation. */ - ResultCode HandleSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory); + ResultCode HandleSyncRequest(std::shared_ptr<Thread> thread, Core::Memory::Memory& memory); bool ShouldWait(const Thread* thread) const override; @@ -126,7 +126,7 @@ public: private: /// Queues a sync request from the emulated application. - ResultCode QueueSyncRequest(std::shared_ptr<Thread> thread, Memory::Memory& memory); + ResultCode QueueSyncRequest(std::shared_ptr<Thread> thread, Core::Memory::Memory& memory); /// Completes a sync request from the emulated application. ResultCode CompleteSyncRequest(); diff --git a/src/core/hle/kernel/shared_memory.cpp b/src/core/hle/kernel/shared_memory.cpp index afb2e3fc2..c67696757 100644 --- a/src/core/hle/kernel/shared_memory.cpp +++ b/src/core/hle/kernel/shared_memory.cpp @@ -2,149 +2,56 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. -#include <utility> - #include "common/assert.h" -#include "common/logging/log.h" -#include "core/hle/kernel/errors.h" +#include "core/core.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/memory/page_table.h" #include "core/hle/kernel/shared_memory.h" namespace Kernel { -SharedMemory::SharedMemory(KernelCore& kernel) : Object{kernel} {} -SharedMemory::~SharedMemory() = default; - -std::shared_ptr<SharedMemory> SharedMemory::Create(KernelCore& kernel, Process* owner_process, - u64 size, MemoryPermission permissions, - MemoryPermission other_permissions, - VAddr address, MemoryRegion region, - std::string name) { - std::shared_ptr<SharedMemory> shared_memory = std::make_shared<SharedMemory>(kernel); - - shared_memory->owner_process = owner_process; - shared_memory->name = std::move(name); - shared_memory->size = size; - shared_memory->permissions = permissions; - shared_memory->other_permissions = other_permissions; - - if (address == 0) { - shared_memory->backing_block = std::make_shared<Kernel::PhysicalMemory>(size); - shared_memory->backing_block_offset = 0; - - // Refresh the address mappings for the current process. - if (kernel.CurrentProcess() != nullptr) { - kernel.CurrentProcess()->VMManager().RefreshMemoryBlockMappings( - shared_memory->backing_block.get()); - } - } else { - const auto& vm_manager = shared_memory->owner_process->VMManager(); +SharedMemory::SharedMemory(KernelCore& kernel, Core::DeviceMemory& device_memory) + : Object{kernel}, device_memory{device_memory} {} - // The memory is already available and mapped in the owner process. - const auto vma = vm_manager.FindVMA(address); - ASSERT_MSG(vm_manager.IsValidHandle(vma), "Invalid memory address"); - ASSERT_MSG(vma->second.backing_block, "Backing block doesn't exist for address"); - - // The returned VMA might be a bigger one encompassing the desired address. - const auto vma_offset = address - vma->first; - ASSERT_MSG(vma_offset + size <= vma->second.size, - "Shared memory exceeds bounds of mapped block"); - - shared_memory->backing_block = vma->second.backing_block; - shared_memory->backing_block_offset = vma->second.offset + vma_offset; - } - - shared_memory->base_address = address; +SharedMemory::~SharedMemory() = default; - return shared_memory; -} +std::shared_ptr<SharedMemory> SharedMemory::Create( + KernelCore& kernel, Core::DeviceMemory& device_memory, Process* owner_process, + Memory::PageLinkedList&& page_list, Memory::MemoryPermission owner_permission, + Memory::MemoryPermission user_permission, PAddr physical_address, std::size_t size, + std::string name) { -std::shared_ptr<SharedMemory> SharedMemory::CreateForApplet( - KernelCore& kernel, std::shared_ptr<Kernel::PhysicalMemory> heap_block, std::size_t offset, - u64 size, MemoryPermission permissions, MemoryPermission other_permissions, std::string name) { - std::shared_ptr<SharedMemory> shared_memory = std::make_shared<SharedMemory>(kernel); + std::shared_ptr<SharedMemory> shared_memory{ + std::make_shared<SharedMemory>(kernel, device_memory)}; - shared_memory->owner_process = nullptr; - shared_memory->name = std::move(name); + shared_memory->owner_process = owner_process; + shared_memory->page_list = std::move(page_list); + shared_memory->owner_permission = owner_permission; + shared_memory->user_permission = user_permission; + shared_memory->physical_address = physical_address; shared_memory->size = size; - shared_memory->permissions = permissions; - shared_memory->other_permissions = other_permissions; - shared_memory->backing_block = std::move(heap_block); - shared_memory->backing_block_offset = offset; - shared_memory->base_address = - kernel.CurrentProcess()->VMManager().GetHeapRegionBaseAddress() + offset; + shared_memory->name = name; return shared_memory; } -ResultCode SharedMemory::Map(Process& target_process, VAddr address, MemoryPermission permissions, - MemoryPermission other_permissions) { - const MemoryPermission own_other_permissions = - &target_process == owner_process ? this->permissions : this->other_permissions; - - // Automatically allocated memory blocks can only be mapped with other_permissions = DontCare - if (base_address == 0 && other_permissions != MemoryPermission::DontCare) { - return ERR_INVALID_MEMORY_PERMISSIONS; - } - - // Error out if the requested permissions don't match what the creator process allows. - if (static_cast<u32>(permissions) & ~static_cast<u32>(own_other_permissions)) { - LOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match", - GetObjectId(), address, name); - return ERR_INVALID_MEMORY_PERMISSIONS; - } +ResultCode SharedMemory::Map(Process& target_process, VAddr address, std::size_t size, + Memory::MemoryPermission permission) { + const u64 page_count{(size + Memory::PageSize - 1) / Memory::PageSize}; - // Error out if the provided permissions are not compatible with what the creator process needs. - if (other_permissions != MemoryPermission::DontCare && - static_cast<u32>(this->permissions) & ~static_cast<u32>(other_permissions)) { - LOG_ERROR(Kernel, "cannot map id={}, address=0x{:X} name={}, permissions don't match", - GetObjectId(), address, name); - return ERR_INVALID_MEMORY_PERMISSIONS; + if (page_list.GetNumPages() != page_count) { + UNIMPLEMENTED_MSG("Page count does not match"); } - VAddr target_address = address; + Memory::MemoryPermission expected = + &target_process == owner_process ? owner_permission : user_permission; - // Map the memory block into the target process - auto result = target_process.VMManager().MapMemoryBlock( - target_address, backing_block, backing_block_offset, size, MemoryState::Shared); - if (result.Failed()) { - LOG_ERROR( - Kernel, - "cannot map id={}, target_address=0x{:X} name={}, error mapping to virtual memory", - GetObjectId(), target_address, name); - return result.Code(); + if (permission != expected) { + UNIMPLEMENTED_MSG("Permission does not match"); } - return target_process.VMManager().ReprotectRange(target_address, size, - ConvertPermissions(permissions)); -} - -ResultCode SharedMemory::Unmap(Process& target_process, VAddr address, u64 unmap_size) { - if (unmap_size != size) { - LOG_ERROR(Kernel, - "Invalid size passed to Unmap. Size must be equal to the size of the " - "memory managed. Shared memory size=0x{:016X}, Unmap size=0x{:016X}", - size, unmap_size); - return ERR_INVALID_SIZE; - } - - // TODO(Subv): Verify what happens if the application tries to unmap an address that is not - // mapped to a SharedMemory. - return target_process.VMManager().UnmapRange(address, size); -} - -VMAPermission SharedMemory::ConvertPermissions(MemoryPermission permission) { - u32 masked_permissions = - static_cast<u32>(permission) & static_cast<u32>(MemoryPermission::ReadWriteExecute); - return static_cast<VMAPermission>(masked_permissions); -} - -u8* SharedMemory::GetPointer(std::size_t offset) { - return backing_block->data() + backing_block_offset + offset; -} - -const u8* SharedMemory::GetPointer(std::size_t offset) const { - return backing_block->data() + backing_block_offset + offset; + return target_process.PageTable().MapPages(address, page_list, Memory::MemoryState::Shared, + permission); } } // namespace Kernel diff --git a/src/core/hle/kernel/shared_memory.h b/src/core/hle/kernel/shared_memory.h index 014951d82..cd16d6412 100644 --- a/src/core/hle/kernel/shared_memory.h +++ b/src/core/hle/kernel/shared_memory.h @@ -8,8 +8,10 @@ #include <string> #include "common/common_types.h" +#include "core/device_memory.h" +#include "core/hle/kernel/memory/memory_block.h" +#include "core/hle/kernel/memory/page_linked_list.h" #include "core/hle/kernel/object.h" -#include "core/hle/kernel/physical_memory.h" #include "core/hle/kernel/process.h" #include "core/hle/result.h" @@ -17,63 +19,21 @@ namespace Kernel { class KernelCore; -/// Permissions for mapped shared memory blocks -enum class MemoryPermission : u32 { - None = 0, - Read = (1u << 0), - Write = (1u << 1), - ReadWrite = (Read | Write), - Execute = (1u << 2), - ReadExecute = (Read | Execute), - WriteExecute = (Write | Execute), - ReadWriteExecute = (Read | Write | Execute), - DontCare = (1u << 28) -}; - class SharedMemory final : public Object { public: - explicit SharedMemory(KernelCore& kernel); + explicit SharedMemory(KernelCore& kernel, Core::DeviceMemory& device_memory); ~SharedMemory() override; - /** - * Creates a shared memory object. - * @param kernel The kernel instance to create a shared memory instance under. - * @param owner_process Process that created this shared memory object. - * @param size Size of the memory block. Must be page-aligned. - * @param permissions Permission restrictions applied to the process which created the block. - * @param other_permissions Permission restrictions applied to other processes mapping the - * block. - * @param address The address from which to map the Shared Memory. - * @param region If the address is 0, the shared memory will be allocated in this region of the - * linear heap. - * @param name Optional object name, used for debugging purposes. - */ - static std::shared_ptr<SharedMemory> Create(KernelCore& kernel, Process* owner_process, - u64 size, MemoryPermission permissions, - MemoryPermission other_permissions, - VAddr address = 0, - MemoryRegion region = MemoryRegion::BASE, - std::string name = "Unknown"); - - /** - * Creates a shared memory object from a block of memory managed by an HLE applet. - * @param kernel The kernel instance to create a shared memory instance under. - * @param heap_block Heap block of the HLE applet. - * @param offset The offset into the heap block that the SharedMemory will map. - * @param size Size of the memory block. Must be page-aligned. - * @param permissions Permission restrictions applied to the process which created the block. - * @param other_permissions Permission restrictions applied to other processes mapping the - * block. - * @param name Optional object name, used for debugging purposes. - */ - static std::shared_ptr<SharedMemory> CreateForApplet( - KernelCore& kernel, std::shared_ptr<Kernel::PhysicalMemory> heap_block, std::size_t offset, - u64 size, MemoryPermission permissions, MemoryPermission other_permissions, - std::string name = "Unknown Applet"); + static std::shared_ptr<SharedMemory> Create( + KernelCore& kernel, Core::DeviceMemory& device_memory, Process* owner_process, + Memory::PageLinkedList&& page_list, Memory::MemoryPermission owner_permission, + Memory::MemoryPermission user_permission, PAddr physical_address, std::size_t size, + std::string name); std::string GetTypeName() const override { return "SharedMemory"; } + std::string GetName() const override { return name; } @@ -83,71 +43,42 @@ public: return HANDLE_TYPE; } - /// Gets the size of the underlying memory block in bytes. - u64 GetSize() const { - return size; - } - - /** - * Converts the specified MemoryPermission into the equivalent VMAPermission. - * @param permission The MemoryPermission to convert. - */ - static VMAPermission ConvertPermissions(MemoryPermission permission); - /** * Maps a shared memory block to an address in the target process' address space - * @param target_process Process on which to map the memory block. + * @param target_process Process on which to map the memory block * @param address Address in system memory to map shared memory block to + * @param size Size of the shared memory block to map * @param permissions Memory block map permissions (specified by SVC field) - * @param other_permissions Memory block map other permissions (specified by SVC field) - */ - ResultCode Map(Process& target_process, VAddr address, MemoryPermission permissions, - MemoryPermission other_permissions); - - /** - * Unmaps a shared memory block from the specified address in system memory - * - * @param target_process Process from which to unmap the memory block. - * @param address Address in system memory where the shared memory block is mapped. - * @param unmap_size The amount of bytes to unmap from this shared memory instance. - * - * @return Result code of the unmap operation - * - * @pre The given size to unmap must be the same size as the amount of memory managed by - * the SharedMemory instance itself, otherwise ERR_INVALID_SIZE will be returned. */ - ResultCode Unmap(Process& target_process, VAddr address, u64 unmap_size); + ResultCode Map(Process& target_process, VAddr address, std::size_t size, + Memory::MemoryPermission permission); /** * Gets a pointer to the shared memory block * @param offset Offset from the start of the shared memory block to get pointer * @return A pointer to the shared memory block from the specified offset */ - u8* GetPointer(std::size_t offset = 0); + u8* GetPointer(std::size_t offset = 0) { + return device_memory.GetPointer(physical_address + offset); + } /** - * Gets a constant pointer to the shared memory block + * Gets a pointer to the shared memory block * @param offset Offset from the start of the shared memory block to get pointer - * @return A constant pointer to the shared memory block from the specified offset + * @return A pointer to the shared memory block from the specified offset */ - const u8* GetPointer(std::size_t offset = 0) const; + const u8* GetPointer(std::size_t offset = 0) const { + return device_memory.GetPointer(physical_address + offset); + } private: - /// Backing memory for this shared memory block. - std::shared_ptr<PhysicalMemory> backing_block; - /// Offset into the backing block for this shared memory. - std::size_t backing_block_offset = 0; - /// Size of the memory block. Page-aligned. - u64 size = 0; - /// Permission restrictions applied to the process which created the block. - MemoryPermission permissions{}; - /// Permission restrictions applied to other processes mapping the block. - MemoryPermission other_permissions{}; - /// Process that created this shared memory block. - Process* owner_process; - /// Address of shared memory block in the owner process if specified. - VAddr base_address = 0; - /// Name of shared memory object. + Core::DeviceMemory& device_memory; + Process* owner_process{}; + Memory::PageLinkedList page_list; + Memory::MemoryPermission owner_permission{}; + Memory::MemoryPermission user_permission{}; + PAddr physical_address{}; + std::size_t size{}; std::string name; }; diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 4ffc113c2..4134acf65 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -24,6 +24,8 @@ #include "core/hle/kernel/errors.h" #include "core/hle/kernel/handle_table.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/memory/memory_block.h" +#include "core/hle/kernel/memory/page_table.h" #include "core/hle/kernel/mutex.h" #include "core/hle/kernel/process.h" #include "core/hle/kernel/readable_event.h" @@ -31,6 +33,7 @@ #include "core/hle/kernel/scheduler.h" #include "core/hle/kernel/shared_memory.h" #include "core/hle/kernel/svc.h" +#include "core/hle/kernel/svc_types.h" #include "core/hle/kernel/svc_wrap.h" #include "core/hle/kernel/synchronization.h" #include "core/hle/kernel/thread.h" @@ -42,7 +45,7 @@ #include "core/memory.h" #include "core/reporter.h" -namespace Kernel { +namespace Kernel::Svc { namespace { // Checks if address + size is greater than the given address @@ -58,8 +61,8 @@ constexpr u64 MAIN_MEMORY_SIZE = 0x200000000; // Helper function that performs the common sanity checks for svcMapMemory // and svcUnmapMemory. This is doable, as both functions perform their sanitizing // in the same order. -ResultCode MapUnmapMemorySanityChecks(const VMManager& vm_manager, VAddr dst_addr, VAddr src_addr, - u64 size) { +ResultCode MapUnmapMemorySanityChecks(const Memory::PageTable& manager, VAddr dst_addr, + VAddr src_addr, u64 size) { if (!Common::Is4KBAligned(dst_addr)) { LOG_ERROR(Kernel_SVC, "Destination address is not aligned to 4KB, 0x{:016X}", dst_addr); return ERR_INVALID_ADDRESS; @@ -93,36 +96,33 @@ ResultCode MapUnmapMemorySanityChecks(const VMManager& vm_manager, VAddr dst_add return ERR_INVALID_ADDRESS_STATE; } - if (!vm_manager.IsWithinAddressSpace(src_addr, size)) { + if (!manager.IsInsideAddressSpace(src_addr, size)) { LOG_ERROR(Kernel_SVC, "Source is not within the address space, addr=0x{:016X}, size=0x{:016X}", src_addr, size); return ERR_INVALID_ADDRESS_STATE; } - if (!vm_manager.IsWithinStackRegion(dst_addr, size)) { + if (manager.IsOutsideStackRegion(dst_addr, size)) { LOG_ERROR(Kernel_SVC, "Destination is not within the stack region, addr=0x{:016X}, size=0x{:016X}", dst_addr, size); return ERR_INVALID_MEMORY_RANGE; } - const VAddr dst_end_address = dst_addr + size; - if (dst_end_address > vm_manager.GetHeapRegionBaseAddress() && - vm_manager.GetHeapRegionEndAddress() > dst_addr) { + if (manager.IsInsideHeapRegion(dst_addr, size)) { LOG_ERROR(Kernel_SVC, "Destination does not fit within the heap region, addr=0x{:016X}, " - "size=0x{:016X}, end_addr=0x{:016X}", - dst_addr, size, dst_end_address); + "size=0x{:016X}", + dst_addr, size); return ERR_INVALID_MEMORY_RANGE; } - if (dst_end_address > vm_manager.GetMapRegionBaseAddress() && - vm_manager.GetMapRegionEndAddress() > dst_addr) { + if (manager.IsInsideAliasRegion(dst_addr, size)) { LOG_ERROR(Kernel_SVC, "Destination does not fit within the map region, addr=0x{:016X}, " - "size=0x{:016X}, end_addr=0x{:016X}", - dst_addr, size, dst_end_address); + "size=0x{:016X}", + dst_addr, size); return ERR_INVALID_MEMORY_RANGE; } @@ -177,13 +177,10 @@ static ResultCode SetHeapSize(Core::System& system, VAddr* heap_addr, u64 heap_s return ERR_INVALID_SIZE; } - auto& vm_manager = system.Kernel().CurrentProcess()->VMManager(); - const auto alloc_result = vm_manager.SetHeapSize(heap_size); - if (alloc_result.Failed()) { - return alloc_result.Code(); - } + auto& page_table{system.Kernel().CurrentProcess()->PageTable()}; + + CASCADE_RESULT(*heap_addr, page_table.SetHeapSize(heap_size)); - *heap_addr = *alloc_result; return RESULT_SUCCESS; } @@ -194,63 +191,6 @@ static ResultCode SetHeapSize32(Core::System& system, u32* heap_addr, u32 heap_s return result; } -static ResultCode SetMemoryPermission(Core::System& system, VAddr addr, u64 size, u32 prot) { - LOG_TRACE(Kernel_SVC, "called, addr=0x{:X}, size=0x{:X}, prot=0x{:X}", addr, size, prot); - - if (!Common::Is4KBAligned(addr)) { - LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, addr=0x{:016X}", addr); - return ERR_INVALID_ADDRESS; - } - - if (size == 0) { - LOG_ERROR(Kernel_SVC, "Size is 0"); - return ERR_INVALID_SIZE; - } - - if (!Common::Is4KBAligned(size)) { - LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, size=0x{:016X}", size); - return ERR_INVALID_SIZE; - } - - if (!IsValidAddressRange(addr, size)) { - LOG_ERROR(Kernel_SVC, "Region is not a valid address range, addr=0x{:016X}, size=0x{:016X}", - addr, size); - return ERR_INVALID_ADDRESS_STATE; - } - - const auto permission = static_cast<MemoryPermission>(prot); - if (permission != MemoryPermission::None && permission != MemoryPermission::Read && - permission != MemoryPermission::ReadWrite) { - LOG_ERROR(Kernel_SVC, "Invalid memory permission specified, Got memory permission=0x{:08X}", - static_cast<u32>(permission)); - return ERR_INVALID_MEMORY_PERMISSIONS; - } - - auto* const current_process = system.Kernel().CurrentProcess(); - auto& vm_manager = current_process->VMManager(); - - if (!vm_manager.IsWithinAddressSpace(addr, size)) { - LOG_ERROR(Kernel_SVC, - "Source is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr, - size); - return ERR_INVALID_ADDRESS_STATE; - } - - const VMManager::VMAHandle iter = vm_manager.FindVMA(addr); - if (!vm_manager.IsValidHandle(iter)) { - LOG_ERROR(Kernel_SVC, "Unable to find VMA for address=0x{:016X}", addr); - return ERR_INVALID_ADDRESS_STATE; - } - - LOG_WARNING(Kernel_SVC, "Uniformity check on protected memory is not implemented."); - // TODO: Performs a uniformity check to make sure only protected memory is changed (it doesn't - // make sense to allow changing permissions on kernel memory itself, etc). - - const auto converted_permissions = SharedMemory::ConvertPermissions(permission); - - return vm_manager.ReprotectRange(addr, size, converted_permissions); -} - static ResultCode SetMemoryAttribute(Core::System& system, VAddr address, u64 size, u32 mask, u32 attribute) { LOG_DEBUG(Kernel_SVC, @@ -274,30 +214,19 @@ static ResultCode SetMemoryAttribute(Core::System& system, VAddr address, u64 si return ERR_INVALID_ADDRESS_STATE; } - const auto mem_attribute = static_cast<MemoryAttribute>(attribute); - const auto mem_mask = static_cast<MemoryAttribute>(mask); - const auto attribute_with_mask = mem_attribute | mem_mask; - - if (attribute_with_mask != mem_mask) { + const auto attributes{static_cast<Memory::MemoryAttribute>(mask | attribute)}; + if (attributes != static_cast<Memory::MemoryAttribute>(mask) || + (attributes | Memory::MemoryAttribute::Uncached) != Memory::MemoryAttribute::Uncached) { LOG_ERROR(Kernel_SVC, "Memory attribute doesn't match the given mask (Attribute: 0x{:X}, Mask: {:X}", attribute, mask); return ERR_INVALID_COMBINATION; } - if ((attribute_with_mask | MemoryAttribute::Uncached) != MemoryAttribute::Uncached) { - LOG_ERROR(Kernel_SVC, "Specified attribute isn't equal to MemoryAttributeUncached (8)."); - return ERR_INVALID_COMBINATION; - } - - auto& vm_manager = system.Kernel().CurrentProcess()->VMManager(); - if (!vm_manager.IsWithinAddressSpace(address, size)) { - LOG_ERROR(Kernel_SVC, - "Given address (0x{:016X}) is outside the bounds of the address space.", address); - return ERR_INVALID_ADDRESS_STATE; - } + auto& page_table{system.Kernel().CurrentProcess()->PageTable()}; - return vm_manager.SetMemoryAttribute(address, size, mem_mask, mem_attribute); + return page_table.SetMemoryAttribute(address, size, static_cast<Memory::MemoryAttribute>(mask), + static_cast<Memory::MemoryAttribute>(attribute)); } /// Maps a memory range into a different range. @@ -305,14 +234,14 @@ static ResultCode MapMemory(Core::System& system, VAddr dst_addr, VAddr src_addr LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr, src_addr, size); - auto& vm_manager = system.Kernel().CurrentProcess()->VMManager(); - const auto result = MapUnmapMemorySanityChecks(vm_manager, dst_addr, src_addr, size); + auto& page_table{system.Kernel().CurrentProcess()->PageTable()}; - if (result.IsError()) { + if (const ResultCode result{MapUnmapMemorySanityChecks(page_table, dst_addr, src_addr, size)}; + result.IsError()) { return result; } - return vm_manager.MirrorMemory(dst_addr, src_addr, size, MemoryState::Stack); + return page_table.Map(dst_addr, src_addr, size); } /// Unmaps a region that was previously mapped with svcMapMemory @@ -320,21 +249,14 @@ static ResultCode UnmapMemory(Core::System& system, VAddr dst_addr, VAddr src_ad LOG_TRACE(Kernel_SVC, "called, dst_addr=0x{:X}, src_addr=0x{:X}, size=0x{:X}", dst_addr, src_addr, size); - auto& vm_manager = system.Kernel().CurrentProcess()->VMManager(); - const auto result = MapUnmapMemorySanityChecks(vm_manager, dst_addr, src_addr, size); + auto& page_table{system.Kernel().CurrentProcess()->PageTable()}; - if (result.IsError()) { + if (const ResultCode result{MapUnmapMemorySanityChecks(page_table, dst_addr, src_addr, size)}; + result.IsError()) { return result; } - const auto unmap_res = vm_manager.UnmapRange(dst_addr, size); - - // Reprotect the source mapping on success - if (unmap_res.IsSuccess()) { - ASSERT(vm_manager.ReprotectRange(src_addr, size, VMAPermission::ReadWrite).IsSuccess()); - } - - return unmap_res; + return page_table.Unmap(dst_addr, src_addr, size); } /// Connect to an OS service given the port name, returns the handle to the port to out @@ -367,6 +289,8 @@ static ResultCode ConnectToNamedPort(Core::System& system, Handle* out_handle, return ERR_NOT_FOUND; } + ASSERT(kernel.CurrentProcess()->GetResourceLimit()->Reserve(ResourceType::Sessions, 1)); + auto client_port = it->second; std::shared_ptr<ClientSession> client_session; @@ -538,7 +462,7 @@ static ResultCode ArbitrateLock(Core::System& system, Handle holding_thread_hand "requesting_current_thread_handle=0x{:08X}", holding_thread_handle, mutex_addr, requesting_thread_handle); - if (Memory::IsKernelVirtualAddress(mutex_addr)) { + if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) { LOG_ERROR(Kernel_SVC, "Mutex Address is a kernel virtual address, mutex_addr={:016X}", mutex_addr); return ERR_INVALID_ADDRESS_STATE; @@ -558,7 +482,7 @@ static ResultCode ArbitrateLock(Core::System& system, Handle holding_thread_hand static ResultCode ArbitrateUnlock(Core::System& system, VAddr mutex_addr) { LOG_TRACE(Kernel_SVC, "called mutex_addr=0x{:X}", mutex_addr); - if (Memory::IsKernelVirtualAddress(mutex_addr)) { + if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) { LOG_ERROR(Kernel_SVC, "Mutex Address is a kernel virtual address, mutex_addr={:016X}", mutex_addr); return ERR_INVALID_ADDRESS_STATE; @@ -683,7 +607,6 @@ static void Break(Core::System& system, u32 reason, u64 info1, u64 info2) { auto* const current_thread = system.CurrentScheduler().GetCurrentThread(); const auto thread_processor_id = current_thread->GetProcessorID(); system.ArmInterface(static_cast<std::size_t>(thread_processor_id)).LogBacktrace(); - ASSERT(false); system.Kernel().CurrentProcess()->PrepareForTermination(); @@ -785,35 +708,35 @@ static ResultCode GetInfo(Core::System& system, u64* result, u64 info_id, u64 ha return RESULT_SUCCESS; case GetInfoType::MapRegionBaseAddr: - *result = process->VMManager().GetMapRegionBaseAddress(); + *result = process->PageTable().GetAliasRegionStart(); return RESULT_SUCCESS; case GetInfoType::MapRegionSize: - *result = process->VMManager().GetMapRegionSize(); + *result = process->PageTable().GetAliasRegionSize(); return RESULT_SUCCESS; case GetInfoType::HeapRegionBaseAddr: - *result = process->VMManager().GetHeapRegionBaseAddress(); + *result = process->PageTable().GetHeapRegionStart(); return RESULT_SUCCESS; case GetInfoType::HeapRegionSize: - *result = process->VMManager().GetHeapRegionSize(); + *result = process->PageTable().GetHeapRegionSize(); return RESULT_SUCCESS; case GetInfoType::ASLRRegionBaseAddr: - *result = process->VMManager().GetASLRRegionBaseAddress(); + *result = process->PageTable().GetAliasCodeRegionStart(); return RESULT_SUCCESS; case GetInfoType::ASLRRegionSize: - *result = process->VMManager().GetASLRRegionSize(); + *result = process->PageTable().GetAliasCodeRegionSize(); return RESULT_SUCCESS; case GetInfoType::StackRegionBaseAddr: - *result = process->VMManager().GetStackRegionBaseAddress(); + *result = process->PageTable().GetStackRegionStart(); return RESULT_SUCCESS; case GetInfoType::StackRegionSize: - *result = process->VMManager().GetStackRegionSize(); + *result = process->PageTable().GetStackRegionSize(); return RESULT_SUCCESS; case GetInfoType::TotalPhysicalMemoryAvailable: @@ -987,20 +910,29 @@ static ResultCode MapPhysicalMemory(Core::System& system, VAddr addr, u64 size) return ERR_INVALID_MEMORY_RANGE; } - Process* const current_process = system.Kernel().CurrentProcess(); - auto& vm_manager = current_process->VMManager(); + Process* const current_process{system.Kernel().CurrentProcess()}; + auto& page_table{current_process->PageTable()}; if (current_process->GetSystemResourceSize() == 0) { LOG_ERROR(Kernel_SVC, "System Resource Size is zero"); return ERR_INVALID_STATE; } - if (!vm_manager.IsWithinMapRegion(addr, size)) { - LOG_ERROR(Kernel_SVC, "Range not within map region"); + if (!page_table.IsInsideAddressSpace(addr, size)) { + LOG_ERROR(Kernel_SVC, + "Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr, + size); + return ERR_INVALID_MEMORY_RANGE; + } + + if (page_table.IsOutsideAliasRegion(addr, size)) { + LOG_ERROR(Kernel_SVC, + "Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr, + size); return ERR_INVALID_MEMORY_RANGE; } - return vm_manager.MapPhysicalMemory(addr, size); + return page_table.MapPhysicalMemory(addr, size); } /// Unmaps memory previously mapped via MapPhysicalMemory @@ -1027,20 +959,29 @@ static ResultCode UnmapPhysicalMemory(Core::System& system, VAddr addr, u64 size return ERR_INVALID_MEMORY_RANGE; } - Process* const current_process = system.Kernel().CurrentProcess(); - auto& vm_manager = current_process->VMManager(); + Process* const current_process{system.Kernel().CurrentProcess()}; + auto& page_table{current_process->PageTable()}; if (current_process->GetSystemResourceSize() == 0) { LOG_ERROR(Kernel_SVC, "System Resource Size is zero"); return ERR_INVALID_STATE; } - if (!vm_manager.IsWithinMapRegion(addr, size)) { - LOG_ERROR(Kernel_SVC, "Range not within map region"); + if (!page_table.IsInsideAddressSpace(addr, size)) { + LOG_ERROR(Kernel_SVC, + "Address is not within the address space, addr=0x{:016X}, size=0x{:016X}", addr, + size); + return ERR_INVALID_MEMORY_RANGE; + } + + if (page_table.IsOutsideAliasRegion(addr, size)) { + LOG_ERROR(Kernel_SVC, + "Address is not within the alias region, addr=0x{:016X}, size=0x{:016X}", addr, + size); return ERR_INVALID_MEMORY_RANGE; } - return vm_manager.UnmapPhysicalMemory(addr, size); + return page_table.UnmapPhysicalMemory(addr, size); } /// Sets the thread activity @@ -1197,74 +1138,49 @@ static ResultCode MapSharedMemory(Core::System& system, Handle shared_memory_han return ERR_INVALID_ADDRESS_STATE; } - const auto permissions_type = static_cast<MemoryPermission>(permissions); - if (permissions_type != MemoryPermission::Read && - permissions_type != MemoryPermission::ReadWrite) { + const auto permission_type = static_cast<Memory::MemoryPermission>(permissions); + if ((permission_type | Memory::MemoryPermission::Write) != + Memory::MemoryPermission::ReadAndWrite) { LOG_ERROR(Kernel_SVC, "Expected Read or ReadWrite permission but got permissions=0x{:08X}", permissions); return ERR_INVALID_MEMORY_PERMISSIONS; } - auto* const current_process = system.Kernel().CurrentProcess(); - auto shared_memory = current_process->GetHandleTable().Get<SharedMemory>(shared_memory_handle); - if (!shared_memory) { - LOG_ERROR(Kernel_SVC, "Shared memory does not exist, shared_memory_handle=0x{:08X}", - shared_memory_handle); - return ERR_INVALID_HANDLE; - } + auto* const current_process{system.Kernel().CurrentProcess()}; + auto& page_table{current_process->PageTable()}; - const auto& vm_manager = current_process->VMManager(); - if (!vm_manager.IsWithinASLRRegion(addr, size)) { - LOG_ERROR(Kernel_SVC, "Region is not within the ASLR region. addr=0x{:016X}, size={:016X}", + if (page_table.IsInvalidRegion(addr, size)) { + LOG_ERROR(Kernel_SVC, + "Addr does not fit within the valid region, addr=0x{:016X}, " + "size=0x{:016X}", addr, size); return ERR_INVALID_MEMORY_RANGE; } - return shared_memory->Map(*current_process, addr, permissions_type, MemoryPermission::DontCare); -} - -static ResultCode UnmapSharedMemory(Core::System& system, Handle shared_memory_handle, VAddr addr, - u64 size) { - LOG_WARNING(Kernel_SVC, "called, shared_memory_handle=0x{:08X}, addr=0x{:X}, size=0x{:X}", - shared_memory_handle, addr, size); - - if (!Common::Is4KBAligned(addr)) { - LOG_ERROR(Kernel_SVC, "Address is not aligned to 4KB, addr=0x{:016X}", addr); - return ERR_INVALID_ADDRESS; - } - - if (size == 0) { - LOG_ERROR(Kernel_SVC, "Size is 0"); - return ERR_INVALID_SIZE; - } - - if (!Common::Is4KBAligned(size)) { - LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, size=0x{:016X}", size); - return ERR_INVALID_SIZE; + if (page_table.IsInsideHeapRegion(addr, size)) { + LOG_ERROR(Kernel_SVC, + "Addr does not fit within the heap region, addr=0x{:016X}, " + "size=0x{:016X}", + addr, size); + return ERR_INVALID_MEMORY_RANGE; } - if (!IsValidAddressRange(addr, size)) { - LOG_ERROR(Kernel_SVC, "Region is not a valid address range, addr=0x{:016X}, size=0x{:016X}", + if (page_table.IsInsideAliasRegion(addr, size)) { + LOG_ERROR(Kernel_SVC, + "Address does not fit within the map region, addr=0x{:016X}, " + "size=0x{:016X}", addr, size); - return ERR_INVALID_ADDRESS_STATE; + return ERR_INVALID_MEMORY_RANGE; } - auto* const current_process = system.Kernel().CurrentProcess(); - auto shared_memory = current_process->GetHandleTable().Get<SharedMemory>(shared_memory_handle); + auto shared_memory{current_process->GetHandleTable().Get<SharedMemory>(shared_memory_handle)}; if (!shared_memory) { LOG_ERROR(Kernel_SVC, "Shared memory does not exist, shared_memory_handle=0x{:08X}", shared_memory_handle); return ERR_INVALID_HANDLE; } - const auto& vm_manager = current_process->VMManager(); - if (!vm_manager.IsWithinASLRRegion(addr, size)) { - LOG_ERROR(Kernel_SVC, "Region is not within the ASLR region. addr=0x{:016X}, size={:016X}", - addr, size); - return ERR_INVALID_MEMORY_RANGE; - } - - return shared_memory->Unmap(*current_process, addr, size); + return shared_memory->Map(*current_process, addr, size, permission_type); } static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_address, @@ -1279,18 +1195,17 @@ static ResultCode QueryProcessMemory(Core::System& system, VAddr memory_info_add return ERR_INVALID_HANDLE; } - auto& memory = system.Memory(); - const auto& vm_manager = process->VMManager(); - const MemoryInfo memory_info = vm_manager.QueryMemory(address); - - memory.Write64(memory_info_address, memory_info.base_address); - memory.Write64(memory_info_address + 8, memory_info.size); - memory.Write32(memory_info_address + 16, memory_info.state); - memory.Write32(memory_info_address + 20, memory_info.attributes); - memory.Write32(memory_info_address + 24, memory_info.permission); - memory.Write32(memory_info_address + 32, memory_info.ipc_ref_count); - memory.Write32(memory_info_address + 28, memory_info.device_ref_count); - memory.Write32(memory_info_address + 36, 0); + auto& memory{system.Memory()}; + const auto memory_info{process->PageTable().QueryInfo(address).GetSvcMemoryInfo()}; + + memory.Write64(memory_info_address + 0x00, memory_info.addr); + memory.Write64(memory_info_address + 0x08, memory_info.size); + memory.Write32(memory_info_address + 0x10, static_cast<u32>(memory_info.state) & 0xff); + memory.Write32(memory_info_address + 0x14, static_cast<u32>(memory_info.attr)); + memory.Write32(memory_info_address + 0x18, static_cast<u32>(memory_info.perm)); + memory.Write32(memory_info_address + 0x1c, memory_info.ipc_refcount); + memory.Write32(memory_info_address + 0x20, memory_info.device_refcount); + memory.Write32(memory_info_address + 0x24, 0); // Page info appears to be currently unused by the kernel and is always set to zero. memory.Write32(page_info_address, 0); @@ -1314,142 +1229,6 @@ static ResultCode QueryMemory32(Core::System& system, u32 memory_info_address, return QueryMemory(system, memory_info_address, page_info_address, query_address); } -static ResultCode MapProcessCodeMemory(Core::System& system, Handle process_handle, u64 dst_address, - u64 src_address, u64 size) { - LOG_DEBUG(Kernel_SVC, - "called. process_handle=0x{:08X}, dst_address=0x{:016X}, " - "src_address=0x{:016X}, size=0x{:016X}", - process_handle, dst_address, src_address, size); - - if (!Common::Is4KBAligned(src_address)) { - LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).", - src_address); - return ERR_INVALID_ADDRESS; - } - - if (!Common::Is4KBAligned(dst_address)) { - LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).", - dst_address); - return ERR_INVALID_ADDRESS; - } - - if (size == 0 || !Common::Is4KBAligned(size)) { - LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X})", size); - return ERR_INVALID_SIZE; - } - - if (!IsValidAddressRange(dst_address, size)) { - LOG_ERROR(Kernel_SVC, - "Destination address range overflows the address space (dst_address=0x{:016X}, " - "size=0x{:016X}).", - dst_address, size); - return ERR_INVALID_ADDRESS_STATE; - } - - if (!IsValidAddressRange(src_address, size)) { - LOG_ERROR(Kernel_SVC, - "Source address range overflows the address space (src_address=0x{:016X}, " - "size=0x{:016X}).", - src_address, size); - return ERR_INVALID_ADDRESS_STATE; - } - - const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); - auto process = handle_table.Get<Process>(process_handle); - if (!process) { - LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).", - process_handle); - return ERR_INVALID_HANDLE; - } - - auto& vm_manager = process->VMManager(); - if (!vm_manager.IsWithinAddressSpace(src_address, size)) { - LOG_ERROR(Kernel_SVC, - "Source address range is not within the address space (src_address=0x{:016X}, " - "size=0x{:016X}).", - src_address, size); - return ERR_INVALID_ADDRESS_STATE; - } - - if (!vm_manager.IsWithinASLRRegion(dst_address, size)) { - LOG_ERROR(Kernel_SVC, - "Destination address range is not within the ASLR region (dst_address=0x{:016X}, " - "size=0x{:016X}).", - dst_address, size); - return ERR_INVALID_MEMORY_RANGE; - } - - return vm_manager.MapCodeMemory(dst_address, src_address, size); -} - -static ResultCode UnmapProcessCodeMemory(Core::System& system, Handle process_handle, - u64 dst_address, u64 src_address, u64 size) { - LOG_DEBUG(Kernel_SVC, - "called. process_handle=0x{:08X}, dst_address=0x{:016X}, src_address=0x{:016X}, " - "size=0x{:016X}", - process_handle, dst_address, src_address, size); - - if (!Common::Is4KBAligned(dst_address)) { - LOG_ERROR(Kernel_SVC, "dst_address is not page-aligned (dst_address=0x{:016X}).", - dst_address); - return ERR_INVALID_ADDRESS; - } - - if (!Common::Is4KBAligned(src_address)) { - LOG_ERROR(Kernel_SVC, "src_address is not page-aligned (src_address=0x{:016X}).", - src_address); - return ERR_INVALID_ADDRESS; - } - - if (size == 0 || Common::Is4KBAligned(size)) { - LOG_ERROR(Kernel_SVC, "Size is zero or not page-aligned (size=0x{:016X}).", size); - return ERR_INVALID_SIZE; - } - - if (!IsValidAddressRange(dst_address, size)) { - LOG_ERROR(Kernel_SVC, - "Destination address range overflows the address space (dst_address=0x{:016X}, " - "size=0x{:016X}).", - dst_address, size); - return ERR_INVALID_ADDRESS_STATE; - } - - if (!IsValidAddressRange(src_address, size)) { - LOG_ERROR(Kernel_SVC, - "Source address range overflows the address space (src_address=0x{:016X}, " - "size=0x{:016X}).", - src_address, size); - return ERR_INVALID_ADDRESS_STATE; - } - - const auto& handle_table = system.Kernel().CurrentProcess()->GetHandleTable(); - auto process = handle_table.Get<Process>(process_handle); - if (!process) { - LOG_ERROR(Kernel_SVC, "Invalid process handle specified (handle=0x{:08X}).", - process_handle); - return ERR_INVALID_HANDLE; - } - - auto& vm_manager = process->VMManager(); - if (!vm_manager.IsWithinAddressSpace(src_address, size)) { - LOG_ERROR(Kernel_SVC, - "Source address range is not within the address space (src_address=0x{:016X}, " - "size=0x{:016X}).", - src_address, size); - return ERR_INVALID_ADDRESS_STATE; - } - - if (!vm_manager.IsWithinASLRRegion(dst_address, size)) { - LOG_ERROR(Kernel_SVC, - "Destination address range is not within the ASLR region (dst_address=0x{:016X}, " - "size=0x{:016X}).", - dst_address, size); - return ERR_INVALID_MEMORY_RANGE; - } - - return vm_manager.UnmapCodeMemory(dst_address, src_address, size); -} - /// Exits the current process static void ExitProcess(Core::System& system) { auto* current_process = system.Kernel().CurrentProcess(); @@ -1506,6 +1285,9 @@ static ResultCode CreateThread(Core::System& system, Handle* out_handle, VAddr e } auto& kernel = system.Kernel(); + + ASSERT(kernel.CurrentProcess()->GetResourceLimit()->Reserve(ResourceType::Threads, 1)); + CASCADE_RESULT(std::shared_ptr<Thread> thread, Thread::Create(kernel, "", entry_point, priority, arg, processor_id, stack_top, *current_process)); @@ -1610,7 +1392,7 @@ static ResultCode WaitProcessWideKeyAtomic(Core::System& system, VAddr mutex_add "called mutex_addr={:X}, condition_variable_addr={:X}, thread_handle=0x{:08X}, timeout={}", mutex_addr, condition_variable_addr, thread_handle, nano_seconds); - if (Memory::IsKernelVirtualAddress(mutex_addr)) { + if (Core::Memory::IsKernelVirtualAddress(mutex_addr)) { LOG_ERROR( Kernel_SVC, "Given mutex address must not be within the kernel address space. address=0x{:016X}", @@ -1741,7 +1523,7 @@ static ResultCode WaitForAddress(Core::System& system, VAddr address, u32 type, type, value, timeout); // If the passed address is a kernel virtual address, return invalid memory state. - if (Memory::IsKernelVirtualAddress(address)) { + if (Core::Memory::IsKernelVirtualAddress(address)) { LOG_ERROR(Kernel_SVC, "Address is a kernel virtual address, address={:016X}", address); return ERR_INVALID_ADDRESS_STATE; } @@ -1769,7 +1551,7 @@ static ResultCode SignalToAddress(Core::System& system, VAddr address, u32 type, address, type, value, num_to_wake); // If the passed address is a kernel virtual address, return invalid memory state. - if (Memory::IsKernelVirtualAddress(address)) { + if (Core::Memory::IsKernelVirtualAddress(address)) { LOG_ERROR(Kernel_SVC, "Address is a kernel virtual address, address={:016X}", address); return ERR_INVALID_ADDRESS_STATE; } @@ -1865,9 +1647,9 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd return ERR_INVALID_ADDRESS_STATE; } - const auto perms = static_cast<MemoryPermission>(permissions); - if (perms != MemoryPermission::None && perms != MemoryPermission::Read && - perms != MemoryPermission::ReadWrite) { + const auto perms{static_cast<Memory::MemoryPermission>(permissions)}; + if (perms > Memory::MemoryPermission::ReadAndWrite || + perms == Memory::MemoryPermission::Write) { LOG_ERROR(Kernel_SVC, "Invalid memory permissions for transfer memory! (perms={:08X})", permissions); return ERR_INVALID_MEMORY_PERMISSIONS; @@ -1890,111 +1672,6 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd return RESULT_SUCCESS; } -static ResultCode MapTransferMemory(Core::System& system, Handle handle, VAddr address, u64 size, - u32 permission_raw) { - LOG_DEBUG(Kernel_SVC, - "called. handle=0x{:08X}, address=0x{:016X}, size=0x{:016X}, permissions=0x{:08X}", - handle, address, size, permission_raw); - - if (!Common::Is4KBAligned(address)) { - LOG_ERROR(Kernel_SVC, "Transfer memory addresses must be 4KB aligned (size=0x{:016X}).", - address); - return ERR_INVALID_ADDRESS; - } - - if (size == 0 || !Common::Is4KBAligned(size)) { - LOG_ERROR(Kernel_SVC, - "Transfer memory sizes must be 4KB aligned and not be zero (size=0x{:016X}).", - size); - return ERR_INVALID_SIZE; - } - - if (!IsValidAddressRange(address, size)) { - LOG_ERROR(Kernel_SVC, - "Given address and size overflows the 64-bit range (address=0x{:016X}, " - "size=0x{:016X}).", - address, size); - return ERR_INVALID_ADDRESS_STATE; - } - - const auto permissions = static_cast<MemoryPermission>(permission_raw); - if (permissions != MemoryPermission::None && permissions != MemoryPermission::Read && - permissions != MemoryPermission::ReadWrite) { - LOG_ERROR(Kernel_SVC, "Invalid transfer memory permissions given (permissions=0x{:08X}).", - permission_raw); - return ERR_INVALID_STATE; - } - - const auto& kernel = system.Kernel(); - const auto* const current_process = kernel.CurrentProcess(); - const auto& handle_table = current_process->GetHandleTable(); - - auto transfer_memory = handle_table.Get<TransferMemory>(handle); - if (!transfer_memory) { - LOG_ERROR(Kernel_SVC, "Nonexistent transfer memory handle given (handle=0x{:08X}).", - handle); - return ERR_INVALID_HANDLE; - } - - if (!current_process->VMManager().IsWithinASLRRegion(address, size)) { - LOG_ERROR(Kernel_SVC, - "Given address and size don't fully fit within the ASLR region " - "(address=0x{:016X}, size=0x{:016X}).", - address, size); - return ERR_INVALID_MEMORY_RANGE; - } - - return transfer_memory->MapMemory(address, size, permissions); -} - -static ResultCode UnmapTransferMemory(Core::System& system, Handle handle, VAddr address, - u64 size) { - LOG_DEBUG(Kernel_SVC, "called. handle=0x{:08X}, address=0x{:016X}, size=0x{:016X}", handle, - address, size); - - if (!Common::Is4KBAligned(address)) { - LOG_ERROR(Kernel_SVC, "Transfer memory addresses must be 4KB aligned (size=0x{:016X}).", - address); - return ERR_INVALID_ADDRESS; - } - - if (size == 0 || !Common::Is4KBAligned(size)) { - LOG_ERROR(Kernel_SVC, - "Transfer memory sizes must be 4KB aligned and not be zero (size=0x{:016X}).", - size); - return ERR_INVALID_SIZE; - } - - if (!IsValidAddressRange(address, size)) { - LOG_ERROR(Kernel_SVC, - "Given address and size overflows the 64-bit range (address=0x{:016X}, " - "size=0x{:016X}).", - address, size); - return ERR_INVALID_ADDRESS_STATE; - } - - const auto& kernel = system.Kernel(); - const auto* const current_process = kernel.CurrentProcess(); - const auto& handle_table = current_process->GetHandleTable(); - - auto transfer_memory = handle_table.Get<TransferMemory>(handle); - if (!transfer_memory) { - LOG_ERROR(Kernel_SVC, "Nonexistent transfer memory handle given (handle=0x{:08X}).", - handle); - return ERR_INVALID_HANDLE; - } - - if (!current_process->VMManager().IsWithinASLRRegion(address, size)) { - LOG_ERROR(Kernel_SVC, - "Given address and size don't fully fit within the ASLR region " - "(address=0x{:016X}, size=0x{:016X}).", - address, size); - return ERR_INVALID_MEMORY_RANGE; - } - - return transfer_memory->UnmapMemory(address, size); -} - static ResultCode GetThreadCoreMask(Core::System& system, Handle thread_handle, u32* core, u64* mask) { LOG_TRACE(Kernel_SVC, "called, handle=0x{:08X}", thread_handle); @@ -2073,52 +1750,6 @@ static ResultCode SetThreadCoreMask(Core::System& system, Handle thread_handle, return RESULT_SUCCESS; } -static ResultCode CreateSharedMemory(Core::System& system, Handle* handle, u64 size, - u32 local_permissions, u32 remote_permissions) { - LOG_TRACE(Kernel_SVC, "called, size=0x{:X}, localPerms=0x{:08X}, remotePerms=0x{:08X}", size, - local_permissions, remote_permissions); - if (size == 0) { - LOG_ERROR(Kernel_SVC, "Size is 0"); - return ERR_INVALID_SIZE; - } - if (!Common::Is4KBAligned(size)) { - LOG_ERROR(Kernel_SVC, "Size is not aligned to 4KB, 0x{:016X}", size); - return ERR_INVALID_SIZE; - } - - if (size >= MAIN_MEMORY_SIZE) { - LOG_ERROR(Kernel_SVC, "Size is not less than 8GB, 0x{:016X}", size); - return ERR_INVALID_SIZE; - } - - const auto local_perms = static_cast<MemoryPermission>(local_permissions); - if (local_perms != MemoryPermission::Read && local_perms != MemoryPermission::ReadWrite) { - LOG_ERROR(Kernel_SVC, - "Invalid local memory permissions, expected Read or ReadWrite but got " - "local_permissions={}", - static_cast<u32>(local_permissions)); - return ERR_INVALID_MEMORY_PERMISSIONS; - } - - const auto remote_perms = static_cast<MemoryPermission>(remote_permissions); - if (remote_perms != MemoryPermission::Read && remote_perms != MemoryPermission::ReadWrite && - remote_perms != MemoryPermission::DontCare) { - LOG_ERROR(Kernel_SVC, - "Invalid remote memory permissions, expected Read, ReadWrite or DontCare but got " - "remote_permissions={}", - static_cast<u32>(remote_permissions)); - return ERR_INVALID_MEMORY_PERMISSIONS; - } - - auto& kernel = system.Kernel(); - auto process = kernel.CurrentProcess(); - auto& handle_table = process->GetHandleTable(); - auto shared_mem_handle = SharedMemory::Create(kernel, process, size, local_perms, remote_perms); - - CASCADE_RESULT(*handle, handle_table.Create(shared_mem_handle)); - return RESULT_SUCCESS; -} - static ResultCode CreateEvent(Core::System& system, Handle* write_handle, Handle* read_handle) { LOG_DEBUG(Kernel_SVC, "called"); @@ -2305,11 +1936,10 @@ static ResultCode GetProcessList(Core::System& system, u32* out_num_processes, } const auto& kernel = system.Kernel(); - const auto& vm_manager = kernel.CurrentProcess()->VMManager(); const auto total_copy_size = out_process_ids_size * sizeof(u64); - if (out_process_ids_size > 0 && - !vm_manager.IsWithinAddressSpace(out_process_ids, total_copy_size)) { + if (out_process_ids_size > 0 && !kernel.CurrentProcess()->PageTable().IsInsideAddressSpace( + out_process_ids, total_copy_size)) { LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}", out_process_ids, out_process_ids + total_copy_size); return ERR_INVALID_ADDRESS_STATE; @@ -2345,11 +1975,10 @@ static ResultCode GetThreadList(Core::System& system, u32* out_num_threads, VAdd } const auto* const current_process = system.Kernel().CurrentProcess(); - const auto& vm_manager = current_process->VMManager(); const auto total_copy_size = out_thread_ids_size * sizeof(u64); if (out_thread_ids_size > 0 && - !vm_manager.IsWithinAddressSpace(out_thread_ids, total_copy_size)) { + !current_process->PageTable().IsInsideAddressSpace(out_thread_ids, total_copy_size)) { LOG_ERROR(Kernel_SVC, "Address range outside address space. begin=0x{:016X}, end=0x{:016X}", out_thread_ids, out_thread_ids + total_copy_size); return ERR_INVALID_ADDRESS_STATE; @@ -2510,7 +2139,7 @@ static const FunctionDef SVC_Table_32[] = { static const FunctionDef SVC_Table_64[] = { {0x00, nullptr, "Unknown"}, {0x01, SvcWrap64<SetHeapSize>, "SetHeapSize"}, - {0x02, SvcWrap64<SetMemoryPermission>, "SetMemoryPermission"}, + {0x02, nullptr, "SetMemoryPermission"}, {0x03, SvcWrap64<SetMemoryAttribute>, "SetMemoryAttribute"}, {0x04, SvcWrap64<MapMemory>, "MapMemory"}, {0x05, SvcWrap64<UnmapMemory>, "UnmapMemory"}, @@ -2528,7 +2157,7 @@ static const FunctionDef SVC_Table_64[] = { {0x11, SvcWrap64<SignalEvent>, "SignalEvent"}, {0x12, SvcWrap64<ClearEvent>, "ClearEvent"}, {0x13, SvcWrap64<MapSharedMemory>, "MapSharedMemory"}, - {0x14, SvcWrap64<UnmapSharedMemory>, "UnmapSharedMemory"}, + {0x14, nullptr, "UnmapSharedMemory"}, {0x15, SvcWrap64<CreateTransferMemory>, "CreateTransferMemory"}, {0x16, SvcWrap64<CloseHandle>, "CloseHandle"}, {0x17, SvcWrap64<ResetSignal>, "ResetSignal"}, @@ -2588,9 +2217,9 @@ static const FunctionDef SVC_Table_64[] = { {0x4D, nullptr, "SleepSystem"}, {0x4E, nullptr, "ReadWriteRegister"}, {0x4F, nullptr, "SetProcessActivity"}, - {0x50, SvcWrap64<CreateSharedMemory>, "CreateSharedMemory"}, - {0x51, SvcWrap64<MapTransferMemory>, "MapTransferMemory"}, - {0x52, SvcWrap64<UnmapTransferMemory>, "UnmapTransferMemory"}, + {0x50, nullptr, "CreateSharedMemory"}, + {0x51, nullptr, "MapTransferMemory"}, + {0x52, nullptr, "UnmapTransferMemory"}, {0x53, nullptr, "CreateInterruptEvent"}, {0x54, nullptr, "QueryPhysicalAddress"}, {0x55, nullptr, "QueryIoMapping"}, @@ -2627,8 +2256,8 @@ static const FunctionDef SVC_Table_64[] = { {0x74, nullptr, "MapProcessMemory"}, {0x75, nullptr, "UnmapProcessMemory"}, {0x76, SvcWrap64<QueryProcessMemory>, "QueryProcessMemory"}, - {0x77, SvcWrap64<MapProcessCodeMemory>, "MapProcessCodeMemory"}, - {0x78, SvcWrap64<UnmapProcessCodeMemory>, "UnmapProcessCodeMemory"}, + {0x77, nullptr, "MapProcessCodeMemory"}, + {0x78, nullptr, "UnmapProcessCodeMemory"}, {0x79, nullptr, "CreateProcess"}, {0x7A, nullptr, "StartProcess"}, {0x7B, nullptr, "TerminateProcess"}, @@ -2656,7 +2285,7 @@ static const FunctionDef* GetSVCInfo64(u32 func_num) { MICROPROFILE_DEFINE(Kernel_SVC, "Kernel", "SVC", MP_RGB(70, 200, 70)); -void CallSVC(Core::System& system, u32 immediate) { +void Call(Core::System& system, u32 immediate) { MICROPROFILE_SCOPE(Kernel_SVC); // Lock the global kernel mutex when we enter the kernel HLE. @@ -2675,4 +2304,4 @@ void CallSVC(Core::System& system, u32 immediate) { } } -} // namespace Kernel +} // namespace Kernel::Svc diff --git a/src/core/hle/kernel/svc.h b/src/core/hle/kernel/svc.h index c5539ac1c..46e64277e 100644 --- a/src/core/hle/kernel/svc.h +++ b/src/core/hle/kernel/svc.h @@ -10,8 +10,8 @@ namespace Core { class System; } -namespace Kernel { +namespace Kernel::Svc { -void CallSVC(Core::System& system, u32 immediate); +void Call(Core::System& system, u32 immediate); -} // namespace Kernel +} // namespace Kernel::Svc diff --git a/src/core/hle/kernel/svc_types.h b/src/core/hle/kernel/svc_types.h new file mode 100644 index 000000000..986724beb --- /dev/null +++ b/src/core/hle/kernel/svc_types.h @@ -0,0 +1,68 @@ +// Copyright 2020 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include "common/common_funcs.h" +#include "common/common_types.h" + +namespace Kernel::Svc { + +enum class MemoryState : u32 { + Free = 0x00, + Io = 0x01, + Static = 0x02, + Code = 0x03, + CodeData = 0x04, + Normal = 0x05, + Shared = 0x06, + Alias = 0x07, + AliasCode = 0x08, + AliasCodeData = 0x09, + Ipc = 0x0A, + Stack = 0x0B, + ThreadLocal = 0x0C, + Transfered = 0x0D, + SharedTransfered = 0x0E, + SharedCode = 0x0F, + Inaccessible = 0x10, + NonSecureIpc = 0x11, + NonDeviceIpc = 0x12, + Kernel = 0x13, + GeneratedCode = 0x14, + CodeOut = 0x15, +}; +DECLARE_ENUM_FLAG_OPERATORS(MemoryState); + +enum class MemoryAttribute : u32 { + Locked = (1 << 0), + IpcLocked = (1 << 1), + DeviceShared = (1 << 2), + Uncached = (1 << 3), +}; +DECLARE_ENUM_FLAG_OPERATORS(MemoryAttribute); + +enum class MemoryPermission : u32 { + None = (0 << 0), + Read = (1 << 0), + Write = (1 << 1), + Execute = (1 << 2), + ReadWrite = Read | Write, + ReadExecute = Read | Execute, + DontCare = (1 << 28), +}; +DECLARE_ENUM_FLAG_OPERATORS(MemoryPermission); + +struct MemoryInfo { + u64 addr{}; + u64 size{}; + MemoryState state{}; + MemoryAttribute attr{}; + MemoryPermission perm{}; + u32 ipc_refcount{}; + u32 device_refcount{}; + u32 padding{}; +}; + +} // namespace Kernel::Svc diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp index 83e956036..a919750a6 100644 --- a/src/core/hle/kernel/thread.cpp +++ b/src/core/hle/kernel/thread.cpp @@ -85,6 +85,7 @@ void Thread::ResumeFromWait() { ASSERT_MSG(wait_objects.empty(), "Thread is waking up while waiting for objects"); switch (status) { + case ThreadStatus::Paused: case ThreadStatus::WaitSynch: case ThreadStatus::WaitHLEEvent: case ThreadStatus::WaitSleep: @@ -92,6 +93,7 @@ void Thread::ResumeFromWait() { case ThreadStatus::WaitMutex: case ThreadStatus::WaitCondVar: case ThreadStatus::WaitArb: + case ThreadStatus::Dormant: break; case ThreadStatus::Ready: @@ -148,8 +150,7 @@ static void ResetThreadContext64(Core::ARM_Interface::ThreadContext64& context, context.pc = entry_point; context.sp = stack_top; // TODO(merry): Perform a hardware test to determine the below value. - // AHP = 0, DN = 1, FTZ = 1, RMode = Round towards zero - context.fpcr = 0x03C00000; + context.fpcr = 0; } ResultVal<std::shared_ptr<Thread>> Thread::Create(KernelCore& kernel, std::string name, diff --git a/src/core/hle/kernel/transfer_memory.cpp b/src/core/hle/kernel/transfer_memory.cpp index f2d3f8b49..765f408c3 100644 --- a/src/core/hle/kernel/transfer_memory.cpp +++ b/src/core/hle/kernel/transfer_memory.cpp @@ -2,17 +2,16 @@ // Licensed under GPLv2 or any later version // Refer to the license.txt file included. -#include "core/hle/kernel/errors.h" #include "core/hle/kernel/kernel.h" +#include "core/hle/kernel/memory/page_table.h" #include "core/hle/kernel/process.h" -#include "core/hle/kernel/shared_memory.h" #include "core/hle/kernel/transfer_memory.h" #include "core/hle/result.h" #include "core/memory.h" namespace Kernel { -TransferMemory::TransferMemory(KernelCore& kernel, Memory::Memory& memory) +TransferMemory::TransferMemory(KernelCore& kernel, Core::Memory::Memory& memory) : Object{kernel}, memory{memory} {} TransferMemory::~TransferMemory() { @@ -20,14 +19,15 @@ TransferMemory::~TransferMemory() { Reset(); } -std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel, Memory::Memory& memory, - VAddr base_address, u64 size, - MemoryPermission permissions) { +std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel, + Core::Memory::Memory& memory, + VAddr base_address, std::size_t size, + Memory::MemoryPermission permissions) { std::shared_ptr<TransferMemory> transfer_memory{ std::make_shared<TransferMemory>(kernel, memory)}; transfer_memory->base_address = base_address; - transfer_memory->memory_size = size; + transfer_memory->size = size; transfer_memory->owner_permissions = permissions; transfer_memory->owner_process = kernel.CurrentProcess(); @@ -38,98 +38,12 @@ const u8* TransferMemory::GetPointer() const { return memory.GetPointer(base_address); } -u64 TransferMemory::GetSize() const { - return memory_size; -} - -ResultCode TransferMemory::MapMemory(VAddr address, u64 size, MemoryPermission permissions) { - if (memory_size != size) { - return ERR_INVALID_SIZE; - } - - if (owner_permissions != permissions) { - return ERR_INVALID_STATE; - } - - if (is_mapped) { - return ERR_INVALID_STATE; - } - - backing_block = std::make_shared<PhysicalMemory>(size); - - const auto map_state = owner_permissions == MemoryPermission::None - ? MemoryState::TransferMemoryIsolated - : MemoryState::TransferMemory; - auto& vm_manager = owner_process->VMManager(); - const auto map_result = vm_manager.MapMemoryBlock(address, backing_block, 0, size, map_state); - if (map_result.Failed()) { - return map_result.Code(); - } - - is_mapped = true; - return RESULT_SUCCESS; -} - ResultCode TransferMemory::Reserve() { - auto& vm_manager{owner_process->VMManager()}; - const auto check_range_result{vm_manager.CheckRangeState( - base_address, memory_size, MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, - MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, VMAPermission::All, - VMAPermission::ReadWrite, MemoryAttribute::Mask, MemoryAttribute::None, - MemoryAttribute::IpcAndDeviceMapped)}; - - if (check_range_result.Failed()) { - return check_range_result.Code(); - } - - auto [state_, permissions_, attribute] = *check_range_result; - - if (const auto result{vm_manager.ReprotectRange( - base_address, memory_size, SharedMemory::ConvertPermissions(owner_permissions))}; - result.IsError()) { - return result; - } - - return vm_manager.SetMemoryAttribute(base_address, memory_size, MemoryAttribute::Mask, - attribute | MemoryAttribute::Locked); + return owner_process->PageTable().ReserveTransferMemory(base_address, size, owner_permissions); } ResultCode TransferMemory::Reset() { - auto& vm_manager{owner_process->VMManager()}; - if (const auto result{vm_manager.CheckRangeState( - base_address, memory_size, - MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, - MemoryState::FlagTransfer | MemoryState::FlagMemoryPoolAllocated, VMAPermission::None, - VMAPermission::None, MemoryAttribute::Mask, MemoryAttribute::Locked, - MemoryAttribute::IpcAndDeviceMapped)}; - result.Failed()) { - return result.Code(); - } - - if (const auto result{ - vm_manager.ReprotectRange(base_address, memory_size, VMAPermission::ReadWrite)}; - result.IsError()) { - return result; - } - - return vm_manager.SetMemoryAttribute(base_address, memory_size, MemoryAttribute::Mask, - MemoryAttribute::None); -} - -ResultCode TransferMemory::UnmapMemory(VAddr address, u64 size) { - if (memory_size != size) { - return ERR_INVALID_SIZE; - } - - auto& vm_manager = owner_process->VMManager(); - const auto result = vm_manager.UnmapRange(address, size); - - if (result.IsError()) { - return result; - } - - is_mapped = false; - return RESULT_SUCCESS; + return owner_process->PageTable().ResetTransferMemory(base_address, size); } } // namespace Kernel diff --git a/src/core/hle/kernel/transfer_memory.h b/src/core/hle/kernel/transfer_memory.h index 6e388536a..05e9f7464 100644 --- a/src/core/hle/kernel/transfer_memory.h +++ b/src/core/hle/kernel/transfer_memory.h @@ -6,12 +6,13 @@ #include <memory> +#include "core/hle/kernel/memory/memory_block.h" #include "core/hle/kernel/object.h" #include "core/hle/kernel/physical_memory.h" union ResultCode; -namespace Memory { +namespace Core::Memory { class Memory; } @@ -20,8 +21,6 @@ namespace Kernel { class KernelCore; class Process; -enum class MemoryPermission : u32; - /// Defines the interface for transfer memory objects. /// /// Transfer memory is typically used for the purpose of @@ -30,14 +29,14 @@ enum class MemoryPermission : u32; /// class TransferMemory final : public Object { public: - explicit TransferMemory(KernelCore& kernel, Memory::Memory& memory); + explicit TransferMemory(KernelCore& kernel, Core::Memory::Memory& memory); ~TransferMemory() override; static constexpr HandleType HANDLE_TYPE = HandleType::TransferMemory; - static std::shared_ptr<TransferMemory> Create(KernelCore& kernel, Memory::Memory& memory, - VAddr base_address, u64 size, - MemoryPermission permissions); + static std::shared_ptr<TransferMemory> Create(KernelCore& kernel, Core::Memory::Memory& memory, + VAddr base_address, std::size_t size, + Memory::MemoryPermission permissions); TransferMemory(const TransferMemory&) = delete; TransferMemory& operator=(const TransferMemory&) = delete; @@ -61,29 +60,9 @@ public: const u8* GetPointer() const; /// Gets the size of the memory backing this instance in bytes. - u64 GetSize() const; - - /// Attempts to map transfer memory with the given range and memory permissions. - /// - /// @param address The base address to being mapping memory at. - /// @param size The size of the memory to map, in bytes. - /// @param permissions The memory permissions to check against when mapping memory. - /// - /// @pre The given address, size, and memory permissions must all match - /// the same values that were given when creating the transfer memory - /// instance. - /// - ResultCode MapMemory(VAddr address, u64 size, MemoryPermission permissions); - - /// Unmaps the transfer memory with the given range - /// - /// @param address The base address to begin unmapping memory at. - /// @param size The size of the memory to unmap, in bytes. - /// - /// @pre The given address and size must be the same as the ones used - /// to create the transfer memory instance. - /// - ResultCode UnmapMemory(VAddr address, u64 size); + constexpr std::size_t GetSize() const { + return size; + } /// Reserves the region to be used for the transfer memory, called after the transfer memory is /// created. @@ -94,25 +73,19 @@ public: ResultCode Reset(); private: - /// Memory block backing this instance. - std::shared_ptr<PhysicalMemory> backing_block; - /// The base address for the memory managed by this instance. - VAddr base_address = 0; + VAddr base_address{}; /// Size of the memory, in bytes, that this instance manages. - u64 memory_size = 0; + std::size_t size{}; /// The memory permissions that are applied to this instance. - MemoryPermission owner_permissions{}; + Memory::MemoryPermission owner_permissions{}; /// The process that this transfer memory instance was created under. - Process* owner_process = nullptr; - - /// Whether or not this transfer memory instance has mapped memory. - bool is_mapped = false; + Process* owner_process{}; - Memory::Memory& memory; + Core::Memory::Memory& memory; }; } // namespace Kernel diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp deleted file mode 100644 index 024c22901..000000000 --- a/src/core/hle/kernel/vm_manager.cpp +++ /dev/null @@ -1,1175 +0,0 @@ -// Copyright 2015 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <algorithm> -#include <cstring> -#include <iterator> -#include <utility> -#include "common/alignment.h" -#include "common/assert.h" -#include "common/logging/log.h" -#include "common/memory_hook.h" -#include "core/core.h" -#include "core/file_sys/program_metadata.h" -#include "core/hle/kernel/errors.h" -#include "core/hle/kernel/process.h" -#include "core/hle/kernel/resource_limit.h" -#include "core/hle/kernel/vm_manager.h" -#include "core/memory.h" - -namespace Kernel { -namespace { -const char* GetMemoryStateName(MemoryState state) { - static constexpr const char* names[] = { - "Unmapped", "Io", - "Normal", "Code", - "CodeData", "Heap", - "Shared", "Unknown1", - "ModuleCode", "ModuleCodeData", - "IpcBuffer0", "Stack", - "ThreadLocal", "TransferMemoryIsolated", - "TransferMemory", "ProcessMemory", - "Inaccessible", "IpcBuffer1", - "IpcBuffer3", "KernelStack", - }; - - return names[ToSvcMemoryState(state)]; -} - -// Checks if a given address range lies within a larger address range. -constexpr bool IsInsideAddressRange(VAddr address, u64 size, VAddr address_range_begin, - VAddr address_range_end) { - const VAddr end_address = address + size - 1; - return address_range_begin <= address && end_address <= address_range_end - 1; -} -} // Anonymous namespace - -bool VirtualMemoryArea::CanBeMergedWith(const VirtualMemoryArea& next) const { - ASSERT(base + size == next.base); - if (permissions != next.permissions || state != next.state || attribute != next.attribute || - type != next.type) { - return false; - } - if ((attribute & MemoryAttribute::DeviceMapped) == MemoryAttribute::DeviceMapped) { - // TODO: Can device mapped memory be merged sanely? - // Not merging it may cause inaccuracies versus hardware when memory layout is queried. - return false; - } - if (type == VMAType::AllocatedMemoryBlock) { - return true; - } - if (type == VMAType::BackingMemory && backing_memory + size != next.backing_memory) { - return false; - } - if (type == VMAType::MMIO && paddr + size != next.paddr) { - return false; - } - return true; -} - -VMManager::VMManager(Core::System& system) : system{system} { - // Default to assuming a 39-bit address space. This way we have a sane - // starting point with executables that don't provide metadata. - Reset(FileSys::ProgramAddressSpaceType::Is39Bit); -} - -VMManager::~VMManager() = default; - -void VMManager::Reset(FileSys::ProgramAddressSpaceType type) { - Clear(); - - InitializeMemoryRegionRanges(type); - - page_table.Resize(address_space_width); - - // Initialize the map with a single free region covering the entire managed space. - VirtualMemoryArea initial_vma; - initial_vma.size = address_space_end; - vma_map.emplace(initial_vma.base, initial_vma); - - UpdatePageTableForVMA(initial_vma); -} - -VMManager::VMAHandle VMManager::FindVMA(VAddr target) const { - if (target >= address_space_end) { - return vma_map.end(); - } else { - return std::prev(vma_map.upper_bound(target)); - } -} - -bool VMManager::IsValidHandle(VMAHandle handle) const { - return handle != vma_map.cend(); -} - -ResultVal<VMManager::VMAHandle> VMManager::MapMemoryBlock(VAddr target, - std::shared_ptr<PhysicalMemory> block, - std::size_t offset, u64 size, - MemoryState state, VMAPermission perm) { - ASSERT(block != nullptr); - ASSERT(offset + size <= block->size()); - - // This is the appropriately sized VMA that will turn into our allocation. - CASCADE_RESULT(VMAIter vma_handle, CarveVMA(target, size)); - VirtualMemoryArea& final_vma = vma_handle->second; - ASSERT(final_vma.size == size); - - final_vma.type = VMAType::AllocatedMemoryBlock; - final_vma.permissions = perm; - final_vma.state = state; - final_vma.backing_block = std::move(block); - final_vma.offset = offset; - UpdatePageTableForVMA(final_vma); - - return MakeResult<VMAHandle>(MergeAdjacent(vma_handle)); -} - -ResultVal<VMManager::VMAHandle> VMManager::MapBackingMemory(VAddr target, u8* memory, u64 size, - MemoryState state) { - ASSERT(memory != nullptr); - - // This is the appropriately sized VMA that will turn into our allocation. - CASCADE_RESULT(VMAIter vma_handle, CarveVMA(target, size)); - VirtualMemoryArea& final_vma = vma_handle->second; - ASSERT(final_vma.size == size); - - final_vma.type = VMAType::BackingMemory; - final_vma.permissions = VMAPermission::ReadWrite; - final_vma.state = state; - final_vma.backing_memory = memory; - UpdatePageTableForVMA(final_vma); - - return MakeResult<VMAHandle>(MergeAdjacent(vma_handle)); -} - -ResultVal<VAddr> VMManager::FindFreeRegion(u64 size) const { - return FindFreeRegion(GetASLRRegionBaseAddress(), GetASLRRegionEndAddress(), size); -} - -ResultVal<VAddr> VMManager::FindFreeRegion(VAddr begin, VAddr end, u64 size) const { - ASSERT(begin < end); - ASSERT(size <= end - begin); - - const VMAHandle vma_handle = - std::find_if(vma_map.begin(), vma_map.end(), [begin, end, size](const auto& vma) { - if (vma.second.type != VMAType::Free) { - return false; - } - const VAddr vma_base = vma.second.base; - const VAddr vma_end = vma_base + vma.second.size; - const VAddr assumed_base = (begin < vma_base) ? vma_base : begin; - const VAddr used_range = assumed_base + size; - - return vma_base <= assumed_base && assumed_base < used_range && used_range < end && - used_range <= vma_end; - }); - - if (vma_handle == vma_map.cend()) { - // TODO(Subv): Find the correct error code here. - return RESULT_UNKNOWN; - } - - const VAddr target = std::max(begin, vma_handle->second.base); - return MakeResult<VAddr>(target); -} - -ResultVal<VMManager::VMAHandle> VMManager::MapMMIO(VAddr target, PAddr paddr, u64 size, - MemoryState state, - Common::MemoryHookPointer mmio_handler) { - // This is the appropriately sized VMA that will turn into our allocation. - CASCADE_RESULT(VMAIter vma_handle, CarveVMA(target, size)); - VirtualMemoryArea& final_vma = vma_handle->second; - ASSERT(final_vma.size == size); - - final_vma.type = VMAType::MMIO; - final_vma.permissions = VMAPermission::ReadWrite; - final_vma.state = state; - final_vma.paddr = paddr; - final_vma.mmio_handler = std::move(mmio_handler); - UpdatePageTableForVMA(final_vma); - - return MakeResult<VMAHandle>(MergeAdjacent(vma_handle)); -} - -VMManager::VMAIter VMManager::Unmap(VMAIter vma_handle) { - VirtualMemoryArea& vma = vma_handle->second; - vma.type = VMAType::Free; - vma.permissions = VMAPermission::None; - vma.state = MemoryState::Unmapped; - vma.attribute = MemoryAttribute::None; - - vma.backing_block = nullptr; - vma.offset = 0; - vma.backing_memory = nullptr; - vma.paddr = 0; - - UpdatePageTableForVMA(vma); - - return MergeAdjacent(vma_handle); -} - -ResultCode VMManager::UnmapRange(VAddr target, u64 size) { - CASCADE_RESULT(VMAIter vma, CarveVMARange(target, size)); - const VAddr target_end = target + size; - - const VMAIter end = vma_map.end(); - // The comparison against the end of the range must be done using addresses since VMAs can be - // merged during this process, causing invalidation of the iterators. - while (vma != end && vma->second.base < target_end) { - vma = std::next(Unmap(vma)); - } - - ASSERT(FindVMA(target)->second.size >= size); - - return RESULT_SUCCESS; -} - -VMManager::VMAHandle VMManager::Reprotect(VMAHandle vma_handle, VMAPermission new_perms) { - VMAIter iter = StripIterConstness(vma_handle); - - VirtualMemoryArea& vma = iter->second; - vma.permissions = new_perms; - UpdatePageTableForVMA(vma); - - return MergeAdjacent(iter); -} - -ResultCode VMManager::ReprotectRange(VAddr target, u64 size, VMAPermission new_perms) { - CASCADE_RESULT(VMAIter vma, CarveVMARange(target, size)); - const VAddr target_end = target + size; - - const VMAIter end = vma_map.end(); - // The comparison against the end of the range must be done using addresses since VMAs can be - // merged during this process, causing invalidation of the iterators. - while (vma != end && vma->second.base < target_end) { - vma = std::next(StripIterConstness(Reprotect(vma, new_perms))); - } - - return RESULT_SUCCESS; -} - -ResultVal<VAddr> VMManager::SetHeapSize(u64 size) { - if (size > GetHeapRegionSize()) { - return ERR_OUT_OF_MEMORY; - } - - // No need to do any additional work if the heap is already the given size. - if (size == GetCurrentHeapSize()) { - return MakeResult(heap_region_base); - } - - if (heap_memory == nullptr) { - // Initialize heap - heap_memory = std::make_shared<PhysicalMemory>(size); - heap_end = heap_region_base + size; - } else { - UnmapRange(heap_region_base, GetCurrentHeapSize()); - } - - // If necessary, expand backing vector to cover new heap extents in - // the case of allocating. Otherwise, shrink the backing memory, - // if a smaller heap has been requested. - heap_memory->resize(size); - heap_memory->shrink_to_fit(); - RefreshMemoryBlockMappings(heap_memory.get()); - - heap_end = heap_region_base + size; - ASSERT(GetCurrentHeapSize() == heap_memory->size()); - - const auto mapping_result = - MapMemoryBlock(heap_region_base, heap_memory, 0, size, MemoryState::Heap); - if (mapping_result.Failed()) { - return mapping_result.Code(); - } - - return MakeResult<VAddr>(heap_region_base); -} - -ResultCode VMManager::MapPhysicalMemory(VAddr target, u64 size) { - // Check how much memory we've already mapped. - const auto mapped_size_result = SizeOfAllocatedVMAsInRange(target, size); - if (mapped_size_result.Failed()) { - return mapped_size_result.Code(); - } - - // If we've already mapped the desired amount, return early. - const std::size_t mapped_size = *mapped_size_result; - if (mapped_size == size) { - return RESULT_SUCCESS; - } - - // Check that we can map the memory we want. - const auto res_limit = system.CurrentProcess()->GetResourceLimit(); - const u64 physmem_remaining = res_limit->GetMaxResourceValue(ResourceType::PhysicalMemory) - - res_limit->GetCurrentResourceValue(ResourceType::PhysicalMemory); - if (physmem_remaining < (size - mapped_size)) { - return ERR_RESOURCE_LIMIT_EXCEEDED; - } - - // Keep track of the memory regions we unmap. - std::vector<std::pair<u64, u64>> mapped_regions; - ResultCode result = RESULT_SUCCESS; - - // Iterate, trying to map memory. - { - const auto end_addr = target + size; - const auto last_addr = end_addr - 1; - VAddr cur_addr = target; - - auto iter = FindVMA(target); - ASSERT(iter != vma_map.end()); - - while (true) { - const auto& vma = iter->second; - const auto vma_start = vma.base; - const auto vma_end = vma_start + vma.size; - const auto vma_last = vma_end - 1; - - // Map the memory block - const auto map_size = std::min(end_addr - cur_addr, vma_end - cur_addr); - if (vma.state == MemoryState::Unmapped) { - const auto map_res = - MapMemoryBlock(cur_addr, std::make_shared<PhysicalMemory>(map_size), 0, - map_size, MemoryState::Heap, VMAPermission::ReadWrite); - result = map_res.Code(); - if (result.IsError()) { - break; - } - - mapped_regions.emplace_back(cur_addr, map_size); - } - - // Break once we hit the end of the range. - if (last_addr <= vma_last) { - break; - } - - // Advance to the next block. - cur_addr = vma_end; - iter = FindVMA(cur_addr); - ASSERT(iter != vma_map.end()); - } - } - - // If we failed, unmap memory. - if (result.IsError()) { - for (const auto [unmap_address, unmap_size] : mapped_regions) { - ASSERT_MSG(UnmapRange(unmap_address, unmap_size).IsSuccess(), - "Failed to unmap memory range."); - } - - return result; - } - - // Update amount of mapped physical memory. - physical_memory_mapped += size - mapped_size; - - return RESULT_SUCCESS; -} - -ResultCode VMManager::UnmapPhysicalMemory(VAddr target, u64 size) { - // Check how much memory is currently mapped. - const auto mapped_size_result = SizeOfUnmappablePhysicalMemoryInRange(target, size); - if (mapped_size_result.Failed()) { - return mapped_size_result.Code(); - } - - // If we've already unmapped all the memory, return early. - const std::size_t mapped_size = *mapped_size_result; - if (mapped_size == 0) { - return RESULT_SUCCESS; - } - - // Keep track of the memory regions we unmap. - std::vector<std::pair<u64, u64>> unmapped_regions; - ResultCode result = RESULT_SUCCESS; - - // Try to unmap regions. - { - const auto end_addr = target + size; - const auto last_addr = end_addr - 1; - VAddr cur_addr = target; - - auto iter = FindVMA(target); - ASSERT(iter != vma_map.end()); - - while (true) { - const auto& vma = iter->second; - const auto vma_start = vma.base; - const auto vma_end = vma_start + vma.size; - const auto vma_last = vma_end - 1; - - // Unmap the memory block - const auto unmap_size = std::min(end_addr - cur_addr, vma_end - cur_addr); - if (vma.state == MemoryState::Heap) { - result = UnmapRange(cur_addr, unmap_size); - if (result.IsError()) { - break; - } - - unmapped_regions.emplace_back(cur_addr, unmap_size); - } - - // Break once we hit the end of the range. - if (last_addr <= vma_last) { - break; - } - - // Advance to the next block. - cur_addr = vma_end; - iter = FindVMA(cur_addr); - ASSERT(iter != vma_map.end()); - } - } - - // If we failed, re-map regions. - // TODO: Preserve memory contents? - if (result.IsError()) { - for (const auto [map_address, map_size] : unmapped_regions) { - const auto remap_res = - MapMemoryBlock(map_address, std::make_shared<PhysicalMemory>(map_size), 0, map_size, - MemoryState::Heap, VMAPermission::None); - ASSERT_MSG(remap_res.Succeeded(), "Failed to remap a memory block."); - } - - return result; - } - - // Update mapped amount - physical_memory_mapped -= mapped_size; - - return RESULT_SUCCESS; -} - -ResultCode VMManager::MapCodeMemory(VAddr dst_address, VAddr src_address, u64 size) { - constexpr auto ignore_attribute = MemoryAttribute::LockedForIPC | MemoryAttribute::DeviceMapped; - const auto src_check_result = CheckRangeState( - src_address, size, MemoryState::All, MemoryState::Heap, VMAPermission::All, - VMAPermission::ReadWrite, MemoryAttribute::Mask, MemoryAttribute::None, ignore_attribute); - - if (src_check_result.Failed()) { - return src_check_result.Code(); - } - - const auto mirror_result = - MirrorMemory(dst_address, src_address, size, MemoryState::ModuleCode); - if (mirror_result.IsError()) { - return mirror_result; - } - - // Ensure we lock the source memory region. - const auto src_vma_result = CarveVMARange(src_address, size); - if (src_vma_result.Failed()) { - return src_vma_result.Code(); - } - auto src_vma_iter = *src_vma_result; - src_vma_iter->second.attribute = MemoryAttribute::Locked; - Reprotect(src_vma_iter, VMAPermission::Read); - - // The destination memory region is fine as is, however we need to make it read-only. - return ReprotectRange(dst_address, size, VMAPermission::Read); -} - -ResultCode VMManager::UnmapCodeMemory(VAddr dst_address, VAddr src_address, u64 size) { - constexpr auto ignore_attribute = MemoryAttribute::LockedForIPC | MemoryAttribute::DeviceMapped; - const auto src_check_result = CheckRangeState( - src_address, size, MemoryState::All, MemoryState::Heap, VMAPermission::None, - VMAPermission::None, MemoryAttribute::Mask, MemoryAttribute::Locked, ignore_attribute); - - if (src_check_result.Failed()) { - return src_check_result.Code(); - } - - // Yes, the kernel only checks the first page of the region. - const auto dst_check_result = - CheckRangeState(dst_address, Memory::PAGE_SIZE, MemoryState::FlagModule, - MemoryState::FlagModule, VMAPermission::None, VMAPermission::None, - MemoryAttribute::Mask, MemoryAttribute::None, ignore_attribute); - - if (dst_check_result.Failed()) { - return dst_check_result.Code(); - } - - const auto dst_memory_state = std::get<MemoryState>(*dst_check_result); - const auto dst_contiguous_check_result = CheckRangeState( - dst_address, size, MemoryState::All, dst_memory_state, VMAPermission::None, - VMAPermission::None, MemoryAttribute::Mask, MemoryAttribute::None, ignore_attribute); - - if (dst_contiguous_check_result.Failed()) { - return dst_contiguous_check_result.Code(); - } - - const auto unmap_result = UnmapRange(dst_address, size); - if (unmap_result.IsError()) { - return unmap_result; - } - - // With the mirrored portion unmapped, restore the original region's traits. - const auto src_vma_result = CarveVMARange(src_address, size); - if (src_vma_result.Failed()) { - return src_vma_result.Code(); - } - auto src_vma_iter = *src_vma_result; - src_vma_iter->second.state = MemoryState::Heap; - src_vma_iter->second.attribute = MemoryAttribute::None; - Reprotect(src_vma_iter, VMAPermission::ReadWrite); - - if (dst_memory_state == MemoryState::ModuleCode) { - system.InvalidateCpuInstructionCaches(); - } - - return unmap_result; -} - -MemoryInfo VMManager::QueryMemory(VAddr address) const { - const auto vma = FindVMA(address); - MemoryInfo memory_info{}; - - if (IsValidHandle(vma)) { - memory_info.base_address = vma->second.base; - memory_info.attributes = ToSvcMemoryAttribute(vma->second.attribute); - memory_info.permission = static_cast<u32>(vma->second.permissions); - memory_info.size = vma->second.size; - memory_info.state = ToSvcMemoryState(vma->second.state); - } else { - memory_info.base_address = address_space_end; - memory_info.permission = static_cast<u32>(VMAPermission::None); - memory_info.size = 0 - address_space_end; - memory_info.state = static_cast<u32>(MemoryState::Inaccessible); - } - - return memory_info; -} - -ResultCode VMManager::SetMemoryAttribute(VAddr address, u64 size, MemoryAttribute mask, - MemoryAttribute attribute) { - constexpr auto ignore_mask = - MemoryAttribute::Uncached | MemoryAttribute::DeviceMapped | MemoryAttribute::Locked; - constexpr auto attribute_mask = ~ignore_mask; - - const auto result = CheckRangeState( - address, size, MemoryState::FlagUncached, MemoryState::FlagUncached, VMAPermission::None, - VMAPermission::None, attribute_mask, MemoryAttribute::None, ignore_mask); - - if (result.Failed()) { - return result.Code(); - } - - const auto [prev_state, prev_permissions, prev_attributes] = *result; - const auto new_attribute = (prev_attributes & ~mask) | (mask & attribute); - - const auto carve_result = CarveVMARange(address, size); - if (carve_result.Failed()) { - return carve_result.Code(); - } - - auto vma_iter = *carve_result; - vma_iter->second.attribute = new_attribute; - - MergeAdjacent(vma_iter); - return RESULT_SUCCESS; -} - -ResultCode VMManager::MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state) { - const auto vma = FindVMA(src_addr); - - ASSERT_MSG(vma != vma_map.end(), "Invalid memory address"); - ASSERT_MSG(vma->second.backing_block, "Backing block doesn't exist for address"); - - // The returned VMA might be a bigger one encompassing the desired address. - const auto vma_offset = src_addr - vma->first; - ASSERT_MSG(vma_offset + size <= vma->second.size, - "Shared memory exceeds bounds of mapped block"); - - const std::shared_ptr<PhysicalMemory>& backing_block = vma->second.backing_block; - const std::size_t backing_block_offset = vma->second.offset + vma_offset; - - CASCADE_RESULT(auto new_vma, - MapMemoryBlock(dst_addr, backing_block, backing_block_offset, size, state)); - // Protect mirror with permissions from old region - Reprotect(new_vma, vma->second.permissions); - // Remove permissions from old region - ReprotectRange(src_addr, size, VMAPermission::None); - - return RESULT_SUCCESS; -} - -void VMManager::RefreshMemoryBlockMappings(const PhysicalMemory* block) { - // If this ever proves to have a noticeable performance impact, allow users of the function to - // specify a specific range of addresses to limit the scan to. - for (const auto& p : vma_map) { - const VirtualMemoryArea& vma = p.second; - if (block == vma.backing_block.get()) { - UpdatePageTableForVMA(vma); - } - } -} - -void VMManager::LogLayout() const { - for (const auto& p : vma_map) { - const VirtualMemoryArea& vma = p.second; - LOG_DEBUG(Kernel, "{:016X} - {:016X} size: {:016X} {}{}{} {}", vma.base, - vma.base + vma.size, vma.size, - (u8)vma.permissions & (u8)VMAPermission::Read ? 'R' : '-', - (u8)vma.permissions & (u8)VMAPermission::Write ? 'W' : '-', - (u8)vma.permissions & (u8)VMAPermission::Execute ? 'X' : '-', - GetMemoryStateName(vma.state)); - } -} - -VMManager::VMAIter VMManager::StripIterConstness(const VMAHandle& iter) { - // This uses a neat C++ trick to convert a const_iterator to a regular iterator, given - // non-const access to its container. - return vma_map.erase(iter, iter); // Erases an empty range of elements -} - -ResultVal<VMManager::VMAIter> VMManager::CarveVMA(VAddr base, u64 size) { - ASSERT_MSG((size & Memory::PAGE_MASK) == 0, "non-page aligned size: 0x{:016X}", size); - ASSERT_MSG((base & Memory::PAGE_MASK) == 0, "non-page aligned base: 0x{:016X}", base); - - VMAIter vma_handle = StripIterConstness(FindVMA(base)); - if (vma_handle == vma_map.end()) { - // Target address is outside the range managed by the kernel - return ERR_INVALID_ADDRESS; - } - - const VirtualMemoryArea& vma = vma_handle->second; - if (vma.type != VMAType::Free) { - // Region is already allocated - return ERR_INVALID_ADDRESS_STATE; - } - - const VAddr start_in_vma = base - vma.base; - const VAddr end_in_vma = start_in_vma + size; - - if (end_in_vma > vma.size) { - // Requested allocation doesn't fit inside VMA - return ERR_INVALID_ADDRESS_STATE; - } - - if (end_in_vma != vma.size) { - // Split VMA at the end of the allocated region - SplitVMA(vma_handle, end_in_vma); - } - if (start_in_vma != 0) { - // Split VMA at the start of the allocated region - vma_handle = SplitVMA(vma_handle, start_in_vma); - } - - return MakeResult<VMAIter>(vma_handle); -} - -ResultVal<VMManager::VMAIter> VMManager::CarveVMARange(VAddr target, u64 size) { - ASSERT_MSG((size & Memory::PAGE_MASK) == 0, "non-page aligned size: 0x{:016X}", size); - ASSERT_MSG((target & Memory::PAGE_MASK) == 0, "non-page aligned base: 0x{:016X}", target); - - const VAddr target_end = target + size; - ASSERT(target_end >= target); - ASSERT(target_end <= address_space_end); - ASSERT(size > 0); - - VMAIter begin_vma = StripIterConstness(FindVMA(target)); - const VMAIter i_end = vma_map.lower_bound(target_end); - if (std::any_of(begin_vma, i_end, - [](const auto& entry) { return entry.second.type == VMAType::Free; })) { - return ERR_INVALID_ADDRESS_STATE; - } - - if (target != begin_vma->second.base) { - begin_vma = SplitVMA(begin_vma, target - begin_vma->second.base); - } - - VMAIter end_vma = StripIterConstness(FindVMA(target_end)); - if (end_vma != vma_map.end() && target_end != end_vma->second.base) { - end_vma = SplitVMA(end_vma, target_end - end_vma->second.base); - } - - return MakeResult<VMAIter>(begin_vma); -} - -VMManager::VMAIter VMManager::SplitVMA(VMAIter vma_handle, u64 offset_in_vma) { - VirtualMemoryArea& old_vma = vma_handle->second; - VirtualMemoryArea new_vma = old_vma; // Make a copy of the VMA - - // For now, don't allow no-op VMA splits (trying to split at a boundary) because it's probably - // a bug. This restriction might be removed later. - ASSERT(offset_in_vma < old_vma.size); - ASSERT(offset_in_vma > 0); - - old_vma.size = offset_in_vma; - new_vma.base += offset_in_vma; - new_vma.size -= offset_in_vma; - - switch (new_vma.type) { - case VMAType::Free: - break; - case VMAType::AllocatedMemoryBlock: - new_vma.offset += offset_in_vma; - break; - case VMAType::BackingMemory: - new_vma.backing_memory += offset_in_vma; - break; - case VMAType::MMIO: - new_vma.paddr += offset_in_vma; - break; - } - - ASSERT(old_vma.CanBeMergedWith(new_vma)); - - return vma_map.emplace_hint(std::next(vma_handle), new_vma.base, new_vma); -} - -VMManager::VMAIter VMManager::MergeAdjacent(VMAIter iter) { - const VMAIter next_vma = std::next(iter); - if (next_vma != vma_map.end() && iter->second.CanBeMergedWith(next_vma->second)) { - MergeAdjacentVMA(iter->second, next_vma->second); - vma_map.erase(next_vma); - } - - if (iter != vma_map.begin()) { - VMAIter prev_vma = std::prev(iter); - if (prev_vma->second.CanBeMergedWith(iter->second)) { - MergeAdjacentVMA(prev_vma->second, iter->second); - vma_map.erase(iter); - iter = prev_vma; - } - } - - return iter; -} - -void VMManager::MergeAdjacentVMA(VirtualMemoryArea& left, const VirtualMemoryArea& right) { - ASSERT(left.CanBeMergedWith(right)); - - // Always merge allocated memory blocks, even when they don't share the same backing block. - if (left.type == VMAType::AllocatedMemoryBlock && - (left.backing_block != right.backing_block || left.offset + left.size != right.offset)) { - - // Check if we can save work. - if (left.offset == 0 && left.size == left.backing_block->size()) { - // Fast case: left is an entire backing block. - left.backing_block->resize(left.size + right.size); - std::memcpy(left.backing_block->data() + left.size, - right.backing_block->data() + right.offset, right.size); - } else { - // Slow case: make a new memory block for left and right. - auto new_memory = std::make_shared<PhysicalMemory>(); - new_memory->resize(left.size + right.size); - std::memcpy(new_memory->data(), left.backing_block->data() + left.offset, left.size); - std::memcpy(new_memory->data() + left.size, right.backing_block->data() + right.offset, - right.size); - - left.backing_block = std::move(new_memory); - left.offset = 0; - } - - // Page table update is needed, because backing memory changed. - left.size += right.size; - UpdatePageTableForVMA(left); - } else { - // Just update the size. - left.size += right.size; - } -} - -void VMManager::UpdatePageTableForVMA(const VirtualMemoryArea& vma) { - auto& memory = system.Memory(); - - switch (vma.type) { - case VMAType::Free: - memory.UnmapRegion(page_table, vma.base, vma.size); - break; - case VMAType::AllocatedMemoryBlock: - memory.MapMemoryRegion(page_table, vma.base, vma.size, *vma.backing_block, vma.offset); - break; - case VMAType::BackingMemory: - memory.MapMemoryRegion(page_table, vma.base, vma.size, vma.backing_memory); - break; - case VMAType::MMIO: - memory.MapIoRegion(page_table, vma.base, vma.size, vma.mmio_handler); - break; - } -} - -void VMManager::InitializeMemoryRegionRanges(FileSys::ProgramAddressSpaceType type) { - u64 map_region_size = 0; - u64 heap_region_size = 0; - u64 stack_region_size = 0; - u64 tls_io_region_size = 0; - - u64 stack_and_tls_io_end = 0; - - switch (type) { - case FileSys::ProgramAddressSpaceType::Is32Bit: - case FileSys::ProgramAddressSpaceType::Is32BitNoMap: - address_space_width = 32; - code_region_base = 0x200000; - code_region_end = code_region_base + 0x3FE00000; - aslr_region_base = 0x200000; - aslr_region_end = aslr_region_base + 0xFFE00000; - if (type == FileSys::ProgramAddressSpaceType::Is32Bit) { - map_region_size = 0x40000000; - heap_region_size = 0x40000000; - } else { - map_region_size = 0; - heap_region_size = 0x80000000; - } - stack_and_tls_io_end = 0x40000000; - break; - case FileSys::ProgramAddressSpaceType::Is36Bit: - address_space_width = 36; - code_region_base = 0x8000000; - code_region_end = code_region_base + 0x78000000; - aslr_region_base = 0x8000000; - aslr_region_end = aslr_region_base + 0xFF8000000; - map_region_size = 0x180000000; - heap_region_size = 0x180000000; - stack_and_tls_io_end = 0x80000000; - break; - case FileSys::ProgramAddressSpaceType::Is39Bit: - address_space_width = 39; - code_region_base = 0x8000000; - code_region_end = code_region_base + 0x80000000; - aslr_region_base = 0x8000000; - aslr_region_end = aslr_region_base + 0x7FF8000000; - map_region_size = 0x1000000000; - heap_region_size = 0x180000000; - stack_region_size = 0x80000000; - tls_io_region_size = 0x1000000000; - break; - default: - UNREACHABLE_MSG("Invalid address space type specified: {}", static_cast<u32>(type)); - return; - } - - const u64 stack_and_tls_io_begin = aslr_region_base; - - address_space_base = 0; - address_space_end = 1ULL << address_space_width; - - map_region_base = code_region_end; - map_region_end = map_region_base + map_region_size; - - heap_region_base = map_region_end; - heap_region_end = heap_region_base + heap_region_size; - heap_end = heap_region_base; - - stack_region_base = heap_region_end; - stack_region_end = stack_region_base + stack_region_size; - - tls_io_region_base = stack_region_end; - tls_io_region_end = tls_io_region_base + tls_io_region_size; - - if (stack_region_size == 0) { - stack_region_base = stack_and_tls_io_begin; - stack_region_end = stack_and_tls_io_end; - } - - if (tls_io_region_size == 0) { - tls_io_region_base = stack_and_tls_io_begin; - tls_io_region_end = stack_and_tls_io_end; - } -} - -void VMManager::Clear() { - ClearVMAMap(); - ClearPageTable(); -} - -void VMManager::ClearVMAMap() { - vma_map.clear(); -} - -void VMManager::ClearPageTable() { - std::fill(page_table.pointers.begin(), page_table.pointers.end(), nullptr); - page_table.special_regions.clear(); - std::fill(page_table.attributes.begin(), page_table.attributes.end(), - Common::PageType::Unmapped); -} - -VMManager::CheckResults VMManager::CheckRangeState(VAddr address, u64 size, MemoryState state_mask, - MemoryState state, VMAPermission permission_mask, - VMAPermission permissions, - MemoryAttribute attribute_mask, - MemoryAttribute attribute, - MemoryAttribute ignore_mask) const { - auto iter = FindVMA(address); - - // If we don't have a valid VMA handle at this point, then it means this is - // being called with an address outside of the address space, which is definitely - // indicative of a bug, as this function only operates on mapped memory regions. - DEBUG_ASSERT(IsValidHandle(iter)); - - const VAddr end_address = address + size - 1; - const MemoryAttribute initial_attributes = iter->second.attribute; - const VMAPermission initial_permissions = iter->second.permissions; - const MemoryState initial_state = iter->second.state; - - while (true) { - // The iterator should be valid throughout the traversal. Hitting the end of - // the mapped VMA regions is unquestionably indicative of a bug. - DEBUG_ASSERT(IsValidHandle(iter)); - - const auto& vma = iter->second; - - if (vma.state != initial_state) { - return ERR_INVALID_ADDRESS_STATE; - } - - if ((vma.state & state_mask) != state) { - return ERR_INVALID_ADDRESS_STATE; - } - - if (vma.permissions != initial_permissions) { - return ERR_INVALID_ADDRESS_STATE; - } - - if ((vma.permissions & permission_mask) != permissions) { - return ERR_INVALID_ADDRESS_STATE; - } - - if ((vma.attribute | ignore_mask) != (initial_attributes | ignore_mask)) { - return ERR_INVALID_ADDRESS_STATE; - } - - if ((vma.attribute & attribute_mask) != attribute) { - return ERR_INVALID_ADDRESS_STATE; - } - - if (end_address <= vma.EndAddress()) { - break; - } - - ++iter; - } - - return MakeResult( - std::make_tuple(initial_state, initial_permissions, initial_attributes & ~ignore_mask)); -} - -ResultVal<std::size_t> VMManager::SizeOfAllocatedVMAsInRange(VAddr address, - std::size_t size) const { - const VAddr end_addr = address + size; - const VAddr last_addr = end_addr - 1; - std::size_t mapped_size = 0; - - VAddr cur_addr = address; - auto iter = FindVMA(cur_addr); - ASSERT(iter != vma_map.end()); - - while (true) { - const auto& vma = iter->second; - const VAddr vma_start = vma.base; - const VAddr vma_end = vma_start + vma.size; - const VAddr vma_last = vma_end - 1; - - // Add size if relevant. - if (vma.state != MemoryState::Unmapped) { - mapped_size += std::min(end_addr - cur_addr, vma_end - cur_addr); - } - - // Break once we hit the end of the range. - if (last_addr <= vma_last) { - break; - } - - // Advance to the next block. - cur_addr = vma_end; - iter = std::next(iter); - ASSERT(iter != vma_map.end()); - } - - return MakeResult(mapped_size); -} - -ResultVal<std::size_t> VMManager::SizeOfUnmappablePhysicalMemoryInRange(VAddr address, - std::size_t size) const { - const VAddr end_addr = address + size; - const VAddr last_addr = end_addr - 1; - std::size_t mapped_size = 0; - - VAddr cur_addr = address; - auto iter = FindVMA(cur_addr); - ASSERT(iter != vma_map.end()); - - while (true) { - const auto& vma = iter->second; - const auto vma_start = vma.base; - const auto vma_end = vma_start + vma.size; - const auto vma_last = vma_end - 1; - const auto state = vma.state; - const auto attr = vma.attribute; - - // Memory within region must be free or mapped heap. - if (!((state == MemoryState::Heap && attr == MemoryAttribute::None) || - (state == MemoryState::Unmapped))) { - return ERR_INVALID_ADDRESS_STATE; - } - - // Add size if relevant. - if (state != MemoryState::Unmapped) { - mapped_size += std::min(end_addr - cur_addr, vma_end - cur_addr); - } - - // Break once we hit the end of the range. - if (last_addr <= vma_last) { - break; - } - - // Advance to the next block. - cur_addr = vma_end; - iter = std::next(iter); - ASSERT(iter != vma_map.end()); - } - - return MakeResult(mapped_size); -} - -u64 VMManager::GetTotalPhysicalMemoryAvailable() const { - LOG_WARNING(Kernel, "(STUBBED) called"); - return 0xF8000000; -} - -VAddr VMManager::GetAddressSpaceBaseAddress() const { - return address_space_base; -} - -VAddr VMManager::GetAddressSpaceEndAddress() const { - return address_space_end; -} - -u64 VMManager::GetAddressSpaceSize() const { - return address_space_end - address_space_base; -} - -u64 VMManager::GetAddressSpaceWidth() const { - return address_space_width; -} - -bool VMManager::IsWithinAddressSpace(VAddr address, u64 size) const { - return IsInsideAddressRange(address, size, GetAddressSpaceBaseAddress(), - GetAddressSpaceEndAddress()); -} - -VAddr VMManager::GetASLRRegionBaseAddress() const { - return aslr_region_base; -} - -VAddr VMManager::GetASLRRegionEndAddress() const { - return aslr_region_end; -} - -u64 VMManager::GetASLRRegionSize() const { - return aslr_region_end - aslr_region_base; -} - -bool VMManager::IsWithinASLRRegion(VAddr begin, u64 size) const { - const VAddr range_end = begin + size; - const VAddr aslr_start = GetASLRRegionBaseAddress(); - const VAddr aslr_end = GetASLRRegionEndAddress(); - - if (aslr_start > begin || begin > range_end || range_end - 1 > aslr_end - 1) { - return false; - } - - if (range_end > heap_region_base && heap_region_end > begin) { - return false; - } - - if (range_end > map_region_base && map_region_end > begin) { - return false; - } - - return true; -} - -VAddr VMManager::GetCodeRegionBaseAddress() const { - return code_region_base; -} - -VAddr VMManager::GetCodeRegionEndAddress() const { - return code_region_end; -} - -u64 VMManager::GetCodeRegionSize() const { - return code_region_end - code_region_base; -} - -bool VMManager::IsWithinCodeRegion(VAddr address, u64 size) const { - return IsInsideAddressRange(address, size, GetCodeRegionBaseAddress(), - GetCodeRegionEndAddress()); -} - -VAddr VMManager::GetHeapRegionBaseAddress() const { - return heap_region_base; -} - -VAddr VMManager::GetHeapRegionEndAddress() const { - return heap_region_end; -} - -u64 VMManager::GetHeapRegionSize() const { - return heap_region_end - heap_region_base; -} - -u64 VMManager::GetCurrentHeapSize() const { - return heap_end - heap_region_base; -} - -bool VMManager::IsWithinHeapRegion(VAddr address, u64 size) const { - return IsInsideAddressRange(address, size, GetHeapRegionBaseAddress(), - GetHeapRegionEndAddress()); -} - -VAddr VMManager::GetMapRegionBaseAddress() const { - return map_region_base; -} - -VAddr VMManager::GetMapRegionEndAddress() const { - return map_region_end; -} - -u64 VMManager::GetMapRegionSize() const { - return map_region_end - map_region_base; -} - -bool VMManager::IsWithinMapRegion(VAddr address, u64 size) const { - return IsInsideAddressRange(address, size, GetMapRegionBaseAddress(), GetMapRegionEndAddress()); -} - -VAddr VMManager::GetStackRegionBaseAddress() const { - return stack_region_base; -} - -VAddr VMManager::GetStackRegionEndAddress() const { - return stack_region_end; -} - -u64 VMManager::GetStackRegionSize() const { - return stack_region_end - stack_region_base; -} - -bool VMManager::IsWithinStackRegion(VAddr address, u64 size) const { - return IsInsideAddressRange(address, size, GetStackRegionBaseAddress(), - GetStackRegionEndAddress()); -} - -VAddr VMManager::GetTLSIORegionBaseAddress() const { - return tls_io_region_base; -} - -VAddr VMManager::GetTLSIORegionEndAddress() const { - return tls_io_region_end; -} - -u64 VMManager::GetTLSIORegionSize() const { - return tls_io_region_end - tls_io_region_base; -} - -bool VMManager::IsWithinTLSIORegion(VAddr address, u64 size) const { - return IsInsideAddressRange(address, size, GetTLSIORegionBaseAddress(), - GetTLSIORegionEndAddress()); -} - -} // namespace Kernel diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h deleted file mode 100644 index 90b4b006a..000000000 --- a/src/core/hle/kernel/vm_manager.h +++ /dev/null @@ -1,796 +0,0 @@ -// Copyright 2015 Citra Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#pragma once - -#include <map> -#include <memory> -#include <tuple> -#include <vector> -#include "common/common_types.h" -#include "common/memory_hook.h" -#include "common/page_table.h" -#include "core/hle/kernel/physical_memory.h" -#include "core/hle/result.h" -#include "core/memory.h" - -namespace Core { -class System; -} - -namespace FileSys { -enum class ProgramAddressSpaceType : u8; -} - -namespace Kernel { - -enum class VMAType : u8 { - /// VMA represents an unmapped region of the address space. - Free, - /// VMA is backed by a ref-counted allocate memory block. - AllocatedMemoryBlock, - /// VMA is backed by a raw, unmanaged pointer. - BackingMemory, - /// VMA is mapped to MMIO registers at a fixed PAddr. - MMIO, - // TODO(yuriks): Implement MemoryAlias to support MAP/UNMAP -}; - -/// Permissions for mapped memory blocks -enum class VMAPermission : u8 { - None = 0, - Read = 1, - Write = 2, - Execute = 4, - - ReadWrite = Read | Write, - ReadExecute = Read | Execute, - WriteExecute = Write | Execute, - ReadWriteExecute = Read | Write | Execute, - - // Used as a wildcard when checking permissions across memory ranges - All = 0xFF, -}; - -constexpr VMAPermission operator|(VMAPermission lhs, VMAPermission rhs) { - return static_cast<VMAPermission>(u32(lhs) | u32(rhs)); -} - -constexpr VMAPermission operator&(VMAPermission lhs, VMAPermission rhs) { - return static_cast<VMAPermission>(u32(lhs) & u32(rhs)); -} - -constexpr VMAPermission operator^(VMAPermission lhs, VMAPermission rhs) { - return static_cast<VMAPermission>(u32(lhs) ^ u32(rhs)); -} - -constexpr VMAPermission operator~(VMAPermission permission) { - return static_cast<VMAPermission>(~u32(permission)); -} - -constexpr VMAPermission& operator|=(VMAPermission& lhs, VMAPermission rhs) { - lhs = lhs | rhs; - return lhs; -} - -constexpr VMAPermission& operator&=(VMAPermission& lhs, VMAPermission rhs) { - lhs = lhs & rhs; - return lhs; -} - -constexpr VMAPermission& operator^=(VMAPermission& lhs, VMAPermission rhs) { - lhs = lhs ^ rhs; - return lhs; -} - -/// Attribute flags that can be applied to a VMA -enum class MemoryAttribute : u32 { - Mask = 0xFF, - - /// No particular qualities - None = 0, - /// Memory locked/borrowed for use. e.g. This would be used by transfer memory. - Locked = 1, - /// Memory locked for use by IPC-related internals. - LockedForIPC = 2, - /// Mapped as part of the device address space. - DeviceMapped = 4, - /// Uncached memory - Uncached = 8, - - IpcAndDeviceMapped = LockedForIPC | DeviceMapped, -}; - -constexpr MemoryAttribute operator|(MemoryAttribute lhs, MemoryAttribute rhs) { - return static_cast<MemoryAttribute>(u32(lhs) | u32(rhs)); -} - -constexpr MemoryAttribute operator&(MemoryAttribute lhs, MemoryAttribute rhs) { - return static_cast<MemoryAttribute>(u32(lhs) & u32(rhs)); -} - -constexpr MemoryAttribute operator^(MemoryAttribute lhs, MemoryAttribute rhs) { - return static_cast<MemoryAttribute>(u32(lhs) ^ u32(rhs)); -} - -constexpr MemoryAttribute operator~(MemoryAttribute attribute) { - return static_cast<MemoryAttribute>(~u32(attribute)); -} - -constexpr MemoryAttribute& operator|=(MemoryAttribute& lhs, MemoryAttribute rhs) { - lhs = lhs | rhs; - return lhs; -} - -constexpr MemoryAttribute& operator&=(MemoryAttribute& lhs, MemoryAttribute rhs) { - lhs = lhs & rhs; - return lhs; -} - -constexpr MemoryAttribute& operator^=(MemoryAttribute& lhs, MemoryAttribute rhs) { - lhs = lhs ^ rhs; - return lhs; -} - -constexpr u32 ToSvcMemoryAttribute(MemoryAttribute attribute) { - return static_cast<u32>(attribute & MemoryAttribute::Mask); -} - -// clang-format off -/// Represents memory states and any relevant flags, as used by the kernel. -/// svcQueryMemory interprets these by masking away all but the first eight -/// bits when storing memory state into a MemoryInfo instance. -enum class MemoryState : u32 { - Mask = 0xFF, - FlagProtect = 1U << 8, - FlagDebug = 1U << 9, - FlagIPC0 = 1U << 10, - FlagIPC3 = 1U << 11, - FlagIPC1 = 1U << 12, - FlagMapped = 1U << 13, - FlagCode = 1U << 14, - FlagAlias = 1U << 15, - FlagModule = 1U << 16, - FlagTransfer = 1U << 17, - FlagQueryPhysicalAddressAllowed = 1U << 18, - FlagSharedDevice = 1U << 19, - FlagSharedDeviceAligned = 1U << 20, - FlagIPCBuffer = 1U << 21, - FlagMemoryPoolAllocated = 1U << 22, - FlagMapProcess = 1U << 23, - FlagUncached = 1U << 24, - FlagCodeMemory = 1U << 25, - - // Wildcard used in range checking to indicate all states. - All = 0xFFFFFFFF, - - // Convenience flag sets to reduce repetition - IPCFlags = FlagIPC0 | FlagIPC3 | FlagIPC1, - - CodeFlags = FlagDebug | IPCFlags | FlagMapped | FlagCode | FlagQueryPhysicalAddressAllowed | - FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated, - - DataFlags = FlagProtect | IPCFlags | FlagMapped | FlagAlias | FlagTransfer | - FlagQueryPhysicalAddressAllowed | FlagSharedDevice | FlagSharedDeviceAligned | - FlagMemoryPoolAllocated | FlagIPCBuffer | FlagUncached, - - Unmapped = 0x00, - Io = 0x01 | FlagMapped, - Normal = 0x02 | FlagMapped | FlagQueryPhysicalAddressAllowed, - Code = 0x03 | CodeFlags | FlagMapProcess, - CodeData = 0x04 | DataFlags | FlagMapProcess | FlagCodeMemory, - Heap = 0x05 | DataFlags | FlagCodeMemory, - Shared = 0x06 | FlagMapped | FlagMemoryPoolAllocated, - ModuleCode = 0x08 | CodeFlags | FlagModule | FlagMapProcess, - ModuleCodeData = 0x09 | DataFlags | FlagModule | FlagMapProcess | FlagCodeMemory, - - IpcBuffer0 = 0x0A | FlagMapped | FlagQueryPhysicalAddressAllowed | FlagMemoryPoolAllocated | - IPCFlags | FlagSharedDevice | FlagSharedDeviceAligned, - - Stack = 0x0B | FlagMapped | IPCFlags | FlagQueryPhysicalAddressAllowed | - FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated, - - ThreadLocal = 0x0C | FlagMapped | FlagMemoryPoolAllocated, - - TransferMemoryIsolated = 0x0D | IPCFlags | FlagMapped | FlagQueryPhysicalAddressAllowed | - FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated | - FlagUncached, - - TransferMemory = 0x0E | FlagIPC3 | FlagIPC1 | FlagMapped | FlagQueryPhysicalAddressAllowed | - FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated, - - ProcessMemory = 0x0F | FlagIPC3 | FlagIPC1 | FlagMapped | FlagMemoryPoolAllocated, - - // Used to signify an inaccessible or invalid memory region with memory queries - Inaccessible = 0x10, - - IpcBuffer1 = 0x11 | FlagIPC3 | FlagIPC1 | FlagMapped | FlagQueryPhysicalAddressAllowed | - FlagSharedDevice | FlagSharedDeviceAligned | FlagMemoryPoolAllocated, - - IpcBuffer3 = 0x12 | FlagIPC3 | FlagMapped | FlagQueryPhysicalAddressAllowed | - FlagSharedDeviceAligned | FlagMemoryPoolAllocated, - - KernelStack = 0x13 | FlagMapped, -}; -// clang-format on - -constexpr MemoryState operator|(MemoryState lhs, MemoryState rhs) { - return static_cast<MemoryState>(u32(lhs) | u32(rhs)); -} - -constexpr MemoryState operator&(MemoryState lhs, MemoryState rhs) { - return static_cast<MemoryState>(u32(lhs) & u32(rhs)); -} - -constexpr MemoryState operator^(MemoryState lhs, MemoryState rhs) { - return static_cast<MemoryState>(u32(lhs) ^ u32(rhs)); -} - -constexpr MemoryState operator~(MemoryState lhs) { - return static_cast<MemoryState>(~u32(lhs)); -} - -constexpr MemoryState& operator|=(MemoryState& lhs, MemoryState rhs) { - lhs = lhs | rhs; - return lhs; -} - -constexpr MemoryState& operator&=(MemoryState& lhs, MemoryState rhs) { - lhs = lhs & rhs; - return lhs; -} - -constexpr MemoryState& operator^=(MemoryState& lhs, MemoryState rhs) { - lhs = lhs ^ rhs; - return lhs; -} - -constexpr u32 ToSvcMemoryState(MemoryState state) { - return static_cast<u32>(state & MemoryState::Mask); -} - -struct MemoryInfo { - u64 base_address; - u64 size; - u32 state; - u32 attributes; - u32 permission; - u32 ipc_ref_count; - u32 device_ref_count; -}; -static_assert(sizeof(MemoryInfo) == 0x28, "MemoryInfo has incorrect size."); - -struct PageInfo { - u32 flags; -}; - -/** - * Represents a VMA in an address space. A VMA is a contiguous region of virtual addressing space - * with homogeneous attributes across its extents. In this particular implementation each VMA is - * also backed by a single host memory allocation. - */ -struct VirtualMemoryArea { - /// Gets the starting (base) address of this VMA. - VAddr StartAddress() const { - return base; - } - - /// Gets the ending address of this VMA. - VAddr EndAddress() const { - return base + size - 1; - } - - /// Virtual base address of the region. - VAddr base = 0; - /// Size of the region. - u64 size = 0; - - VMAType type = VMAType::Free; - VMAPermission permissions = VMAPermission::None; - MemoryState state = MemoryState::Unmapped; - MemoryAttribute attribute = MemoryAttribute::None; - - // Settings for type = AllocatedMemoryBlock - /// Memory block backing this VMA. - std::shared_ptr<PhysicalMemory> backing_block = nullptr; - /// Offset into the backing_memory the mapping starts from. - std::size_t offset = 0; - - // Settings for type = BackingMemory - /// Pointer backing this VMA. It will not be destroyed or freed when the VMA is removed. - u8* backing_memory = nullptr; - - // Settings for type = MMIO - /// Physical address of the register area this VMA maps to. - PAddr paddr = 0; - Common::MemoryHookPointer mmio_handler = nullptr; - - /// Tests if this area can be merged to the right with `next`. - bool CanBeMergedWith(const VirtualMemoryArea& next) const; -}; - -/** - * Manages a process' virtual addressing space. This class maintains a list of allocated and free - * regions in the address space, along with their attributes, and allows kernel clients to - * manipulate it, adjusting the page table to match. - * - * This is similar in idea and purpose to the VM manager present in operating system kernels, with - * the main difference being that it doesn't have to support swapping or memory mapping of files. - * The implementation is also simplified by not having to allocate page frames. See these articles - * about the Linux kernel for an explantion of the concept and implementation: - * - http://duartes.org/gustavo/blog/post/how-the-kernel-manages-your-memory/ - * - http://duartes.org/gustavo/blog/post/page-cache-the-affair-between-memory-and-files/ - */ -class VMManager final { - using VMAMap = std::map<VAddr, VirtualMemoryArea>; - -public: - using VMAHandle = VMAMap::const_iterator; - - explicit VMManager(Core::System& system); - ~VMManager(); - - /// Clears the address space map, re-initializing with a single free area. - void Reset(FileSys::ProgramAddressSpaceType type); - - /// Finds the VMA in which the given address is included in, or `vma_map.end()`. - VMAHandle FindVMA(VAddr target) const; - - /// Indicates whether or not the given handle is within the VMA map. - bool IsValidHandle(VMAHandle handle) const; - - // TODO(yuriks): Should these functions actually return the handle? - - /** - * Maps part of a ref-counted block of memory at a given address. - * - * @param target The guest address to start the mapping at. - * @param block The block to be mapped. - * @param offset Offset into `block` to map from. - * @param size Size of the mapping. - * @param state MemoryState tag to attach to the VMA. - */ - ResultVal<VMAHandle> MapMemoryBlock(VAddr target, std::shared_ptr<PhysicalMemory> block, - std::size_t offset, u64 size, MemoryState state, - VMAPermission perm = VMAPermission::ReadWrite); - - /** - * Maps an unmanaged host memory pointer at a given address. - * - * @param target The guest address to start the mapping at. - * @param memory The memory to be mapped. - * @param size Size of the mapping. - * @param state MemoryState tag to attach to the VMA. - */ - ResultVal<VMAHandle> MapBackingMemory(VAddr target, u8* memory, u64 size, MemoryState state); - - /** - * Finds the first free memory region of the given size within - * the user-addressable ASLR memory region. - * - * @param size The size of the desired region in bytes. - * - * @returns If successful, the base address of the free region with - * the given size. - */ - ResultVal<VAddr> FindFreeRegion(u64 size) const; - - /** - * Finds the first free address range that can hold a region of the desired size - * - * @param begin The starting address of the range. - * This is treated as an inclusive beginning address. - * - * @param end The ending address of the range. - * This is treated as an exclusive ending address. - * - * @param size The size of the free region to attempt to locate, - * in bytes. - * - * @returns If successful, the base address of the free region with - * the given size. - * - * @returns If unsuccessful, a result containing an error code. - * - * @pre The starting address must be less than the ending address. - * @pre The size must not exceed the address range itself. - */ - ResultVal<VAddr> FindFreeRegion(VAddr begin, VAddr end, u64 size) const; - - /** - * Maps a memory-mapped IO region at a given address. - * - * @param target The guest address to start the mapping at. - * @param paddr The physical address where the registers are present. - * @param size Size of the mapping. - * @param state MemoryState tag to attach to the VMA. - * @param mmio_handler The handler that will implement read and write for this MMIO region. - */ - ResultVal<VMAHandle> MapMMIO(VAddr target, PAddr paddr, u64 size, MemoryState state, - Common::MemoryHookPointer mmio_handler); - - /// Unmaps a range of addresses, splitting VMAs as necessary. - ResultCode UnmapRange(VAddr target, u64 size); - - /// Changes the permissions of the given VMA. - VMAHandle Reprotect(VMAHandle vma, VMAPermission new_perms); - - /// Changes the permissions of a range of addresses, splitting VMAs as necessary. - ResultCode ReprotectRange(VAddr target, u64 size, VMAPermission new_perms); - - ResultCode MirrorMemory(VAddr dst_addr, VAddr src_addr, u64 size, MemoryState state); - - /// Attempts to allocate a heap with the given size. - /// - /// @param size The size of the heap to allocate in bytes. - /// - /// @note If a heap is currently allocated, and this is called - /// with a size that is equal to the size of the current heap, - /// then this function will do nothing and return the current - /// heap's starting address, as there's no need to perform - /// any additional heap allocation work. - /// - /// @note If a heap is currently allocated, and this is called - /// with a size less than the current heap's size, then - /// this function will attempt to shrink the heap. - /// - /// @note If a heap is currently allocated, and this is called - /// with a size larger than the current heap's size, then - /// this function will attempt to extend the size of the heap. - /// - /// @returns A result indicating either success or failure. - /// <p> - /// If successful, this function will return a result - /// containing the starting address to the allocated heap. - /// <p> - /// If unsuccessful, this function will return a result - /// containing an error code. - /// - /// @pre The given size must lie within the allowable heap - /// memory region managed by this VMManager instance. - /// Failure to abide by this will result in ERR_OUT_OF_MEMORY - /// being returned as the result. - /// - ResultVal<VAddr> SetHeapSize(u64 size); - - /// Maps memory at a given address. - /// - /// @param target The virtual address to map memory at. - /// @param size The amount of memory to map. - /// - /// @note The destination address must lie within the Map region. - /// - /// @note This function requires that SystemResourceSize be non-zero, - /// however, this is just because if it were not then the - /// resulting page tables could be exploited on hardware by - /// a malicious program. SystemResource usage does not need - /// to be explicitly checked or updated here. - ResultCode MapPhysicalMemory(VAddr target, u64 size); - - /// Unmaps memory at a given address. - /// - /// @param target The virtual address to unmap memory at. - /// @param size The amount of memory to unmap. - /// - /// @note The destination address must lie within the Map region. - /// - /// @note This function requires that SystemResourceSize be non-zero, - /// however, this is just because if it were not then the - /// resulting page tables could be exploited on hardware by - /// a malicious program. SystemResource usage does not need - /// to be explicitly checked or updated here. - ResultCode UnmapPhysicalMemory(VAddr target, u64 size); - - /// Maps a region of memory as code memory. - /// - /// @param dst_address The base address of the region to create the aliasing memory region. - /// @param src_address The base address of the region to be aliased. - /// @param size The total amount of memory to map in bytes. - /// - /// @pre Both memory regions lie within the actual addressable address space. - /// - /// @post After this function finishes execution, assuming success, then the address range - /// [dst_address, dst_address+size) will alias the memory region, - /// [src_address, src_address+size). - /// <p> - /// What this also entails is as follows: - /// 1. The aliased region gains the Locked memory attribute. - /// 2. The aliased region becomes read-only. - /// 3. The aliasing region becomes read-only. - /// 4. The aliasing region is created with a memory state of MemoryState::CodeModule. - /// - ResultCode MapCodeMemory(VAddr dst_address, VAddr src_address, u64 size); - - /// Unmaps a region of memory designated as code module memory. - /// - /// @param dst_address The base address of the memory region aliasing the source memory region. - /// @param src_address The base address of the memory region being aliased. - /// @param size The size of the memory region to unmap in bytes. - /// - /// @pre Both memory ranges lie within the actual addressable address space. - /// - /// @pre The memory region being unmapped has been previously been mapped - /// by a call to MapCodeMemory. - /// - /// @post After execution of the function, if successful. the aliasing memory region - /// will be unmapped and the aliased region will have various traits about it - /// restored to what they were prior to the original mapping call preceding - /// this function call. - /// <p> - /// What this also entails is as follows: - /// 1. The state of the memory region will now indicate a general heap region. - /// 2. All memory attributes for the memory region are cleared. - /// 3. Memory permissions for the region are restored to user read/write. - /// - ResultCode UnmapCodeMemory(VAddr dst_address, VAddr src_address, u64 size); - - /// Queries the memory manager for information about the given address. - /// - /// @param address The address to query the memory manager about for information. - /// - /// @return A MemoryInfo instance containing information about the given address. - /// - MemoryInfo QueryMemory(VAddr address) const; - - /// Sets an attribute across the given address range. - /// - /// @param address The starting address - /// @param size The size of the range to set the attribute on. - /// @param mask The attribute mask - /// @param attribute The attribute to set across the given address range - /// - /// @returns RESULT_SUCCESS if successful - /// @returns ERR_INVALID_ADDRESS_STATE if the attribute could not be set. - /// - ResultCode SetMemoryAttribute(VAddr address, u64 size, MemoryAttribute mask, - MemoryAttribute attribute); - - /** - * Scans all VMAs and updates the page table range of any that use the given vector as backing - * memory. This should be called after any operation that causes reallocation of the vector. - */ - void RefreshMemoryBlockMappings(const PhysicalMemory* block); - - /// Dumps the address space layout to the log, for debugging - void LogLayout() const; - - /// Gets the total memory usage, used by svcGetInfo - u64 GetTotalPhysicalMemoryAvailable() const; - - /// Gets the address space base address - VAddr GetAddressSpaceBaseAddress() const; - - /// Gets the address space end address - VAddr GetAddressSpaceEndAddress() const; - - /// Gets the total address space address size in bytes - u64 GetAddressSpaceSize() const; - - /// Gets the address space width in bits. - u64 GetAddressSpaceWidth() const; - - /// Determines whether or not the given address range lies within the address space. - bool IsWithinAddressSpace(VAddr address, u64 size) const; - - /// Gets the base address of the ASLR region. - VAddr GetASLRRegionBaseAddress() const; - - /// Gets the end address of the ASLR region. - VAddr GetASLRRegionEndAddress() const; - - /// Gets the size of the ASLR region - u64 GetASLRRegionSize() const; - - /// Determines whether or not the specified address range is within the ASLR region. - bool IsWithinASLRRegion(VAddr address, u64 size) const; - - /// Gets the base address of the code region. - VAddr GetCodeRegionBaseAddress() const; - - /// Gets the end address of the code region. - VAddr GetCodeRegionEndAddress() const; - - /// Gets the total size of the code region in bytes. - u64 GetCodeRegionSize() const; - - /// Determines whether or not the specified range is within the code region. - bool IsWithinCodeRegion(VAddr address, u64 size) const; - - /// Gets the base address of the heap region. - VAddr GetHeapRegionBaseAddress() const; - - /// Gets the end address of the heap region; - VAddr GetHeapRegionEndAddress() const; - - /// Gets the total size of the heap region in bytes. - u64 GetHeapRegionSize() const; - - /// Gets the total size of the current heap in bytes. - /// - /// @note This is the current allocated heap size, not the size - /// of the region it's allowed to exist within. - /// - u64 GetCurrentHeapSize() const; - - /// Determines whether or not the specified range is within the heap region. - bool IsWithinHeapRegion(VAddr address, u64 size) const; - - /// Gets the base address of the map region. - VAddr GetMapRegionBaseAddress() const; - - /// Gets the end address of the map region. - VAddr GetMapRegionEndAddress() const; - - /// Gets the total size of the map region in bytes. - u64 GetMapRegionSize() const; - - /// Determines whether or not the specified range is within the map region. - bool IsWithinMapRegion(VAddr address, u64 size) const; - - /// Gets the base address of the stack region. - VAddr GetStackRegionBaseAddress() const; - - /// Gets the end address of the stack region. - VAddr GetStackRegionEndAddress() const; - - /// Gets the total size of the stack region in bytes. - u64 GetStackRegionSize() const; - - /// Determines whether or not the given address range is within the stack region - bool IsWithinStackRegion(VAddr address, u64 size) const; - - /// Gets the base address of the TLS IO region. - VAddr GetTLSIORegionBaseAddress() const; - - /// Gets the end address of the TLS IO region. - VAddr GetTLSIORegionEndAddress() const; - - /// Gets the total size of the TLS IO region in bytes. - u64 GetTLSIORegionSize() const; - - /// Determines if the given address range is within the TLS IO region. - bool IsWithinTLSIORegion(VAddr address, u64 size) const; - - /// Each VMManager has its own page table, which is set as the main one when the owning process - /// is scheduled. - Common::PageTable page_table{Memory::PAGE_BITS}; - - using CheckResults = ResultVal<std::tuple<MemoryState, VMAPermission, MemoryAttribute>>; - - /// Checks if an address range adheres to the specified states provided. - /// - /// @param address The starting address of the address range. - /// @param size The size of the address range. - /// @param state_mask The memory state mask. - /// @param state The state to compare the individual VMA states against, - /// which is done in the form of: (vma.state & state_mask) != state. - /// @param permission_mask The memory permissions mask. - /// @param permissions The permission to compare the individual VMA permissions against, - /// which is done in the form of: - /// (vma.permission & permission_mask) != permission. - /// @param attribute_mask The memory attribute mask. - /// @param attribute The memory attributes to compare the individual VMA attributes - /// against, which is done in the form of: - /// (vma.attributes & attribute_mask) != attribute. - /// @param ignore_mask The memory attributes to ignore during the check. - /// - /// @returns If successful, returns a tuple containing the memory attributes - /// (with ignored bits specified by ignore_mask unset), memory permissions, and - /// memory state across the memory range. - /// @returns If not successful, returns ERR_INVALID_ADDRESS_STATE. - /// - CheckResults CheckRangeState(VAddr address, u64 size, MemoryState state_mask, MemoryState state, - VMAPermission permission_mask, VMAPermission permissions, - MemoryAttribute attribute_mask, MemoryAttribute attribute, - MemoryAttribute ignore_mask) const; - -private: - using VMAIter = VMAMap::iterator; - - /// Converts a VMAHandle to a mutable VMAIter. - VMAIter StripIterConstness(const VMAHandle& iter); - - /// Unmaps the given VMA. - VMAIter Unmap(VMAIter vma); - - /** - * Carves a VMA of a specific size at the specified address by splitting Free VMAs while doing - * the appropriate error checking. - */ - ResultVal<VMAIter> CarveVMA(VAddr base, u64 size); - - /** - * Splits the edges of the given range of non-Free VMAs so that there is a VMA split at each - * end of the range. - */ - ResultVal<VMAIter> CarveVMARange(VAddr base, u64 size); - - /** - * Splits a VMA in two, at the specified offset. - * @returns the right side of the split, with the original iterator becoming the left side. - */ - VMAIter SplitVMA(VMAIter vma, u64 offset_in_vma); - - /** - * Checks for and merges the specified VMA with adjacent ones if possible. - * @returns the merged VMA or the original if no merging was possible. - */ - VMAIter MergeAdjacent(VMAIter vma); - - /** - * Merges two adjacent VMAs. - */ - void MergeAdjacentVMA(VirtualMemoryArea& left, const VirtualMemoryArea& right); - - /// Updates the pages corresponding to this VMA so they match the VMA's attributes. - void UpdatePageTableForVMA(const VirtualMemoryArea& vma); - - /// Initializes memory region ranges to adhere to a given address space type. - void InitializeMemoryRegionRanges(FileSys::ProgramAddressSpaceType type); - - /// Clears the underlying map and page table. - void Clear(); - - /// Clears out the VMA map, unmapping any previously mapped ranges. - void ClearVMAMap(); - - /// Clears out the page table - void ClearPageTable(); - - /// Gets the amount of memory currently mapped (state != Unmapped) in a range. - ResultVal<std::size_t> SizeOfAllocatedVMAsInRange(VAddr address, std::size_t size) const; - - /// Gets the amount of memory unmappable by UnmapPhysicalMemory in a range. - ResultVal<std::size_t> SizeOfUnmappablePhysicalMemoryInRange(VAddr address, - std::size_t size) const; - - /** - * A map covering the entirety of the managed address space, keyed by the `base` field of each - * VMA. It must always be modified by splitting or merging VMAs, so that the invariant - * `elem.base + elem.size == next.base` is preserved, and mergeable regions must always be - * merged when possible so that no two similar and adjacent regions exist that have not been - * merged. - */ - VMAMap vma_map; - - u32 address_space_width = 0; - VAddr address_space_base = 0; - VAddr address_space_end = 0; - - VAddr aslr_region_base = 0; - VAddr aslr_region_end = 0; - - VAddr code_region_base = 0; - VAddr code_region_end = 0; - - VAddr heap_region_base = 0; - VAddr heap_region_end = 0; - - VAddr map_region_base = 0; - VAddr map_region_end = 0; - - VAddr stack_region_base = 0; - VAddr stack_region_end = 0; - - VAddr tls_io_region_base = 0; - VAddr tls_io_region_end = 0; - - // Memory used to back the allocations in the regular heap. A single vector is used to cover - // the entire virtual address space extents that bound the allocations, including any holes. - // This makes deallocation and reallocation of holes fast and keeps process memory contiguous - // in the emulator address space, allowing Memory::GetPointer to be reasonably safe. - std::shared_ptr<PhysicalMemory> heap_memory; - - // The end of the currently allocated heap. This is not an inclusive - // end of the range. This is essentially 'base_address + current_size'. - VAddr heap_end = 0; - - // The current amount of memory mapped via MapPhysicalMemory. - // This is used here (and in Nintendo's kernel) only for debugging, and does not impact - // any behavior. - u64 physical_memory_mapped = 0; - - Core::System& system; -}; -} // namespace Kernel diff --git a/src/core/hle/service/am/am.cpp b/src/core/hle/service/am/am.cpp index 557608e76..3ece2cf3c 100644 --- a/src/core/hle/service/am/am.cpp +++ b/src/core/hle/service/am/am.cpp @@ -903,7 +903,7 @@ private: void PopOutData(Kernel::HLERequestContext& ctx) { LOG_DEBUG(Service_AM, "called"); - const auto storage = applet->GetBroker().PopNormalDataToGame(); + auto storage = applet->GetBroker().PopNormalDataToGame(); if (storage == nullptr) { LOG_ERROR(Service_AM, "storage is a nullptr. There is no data in the current normal channel"); @@ -934,7 +934,7 @@ private: void PopInteractiveOutData(Kernel::HLERequestContext& ctx) { LOG_DEBUG(Service_AM, "called"); - const auto storage = applet->GetBroker().PopInteractiveDataToGame(); + auto storage = applet->GetBroker().PopInteractiveDataToGame(); if (storage == nullptr) { LOG_ERROR(Service_AM, "storage is a nullptr. There is no data in the current interactive channel"); diff --git a/src/core/hle/service/audio/audout_u.cpp b/src/core/hle/service/audio/audout_u.cpp index 4fb2cbc4b..106e89743 100644 --- a/src/core/hle/service/audio/audout_u.cpp +++ b/src/core/hle/service/audio/audout_u.cpp @@ -210,7 +210,7 @@ private: /// This is the event handle used to check if the audio buffer was released Kernel::EventPair buffer_event; - Memory::Memory& main_memory; + Core::Memory::Memory& main_memory; }; AudOutU::AudOutU(Core::System& system_) : ServiceFramework("audout:u"), system{system_} { diff --git a/src/core/hle/service/audio/audren_u.cpp b/src/core/hle/service/audio/audren_u.cpp index 175cabf45..d8359abaa 100644 --- a/src/core/hle/service/audio/audren_u.cpp +++ b/src/core/hle/service/audio/audren_u.cpp @@ -92,11 +92,16 @@ private: } void RequestUpdateImpl(Kernel::HLERequestContext& ctx) { - LOG_WARNING(Service_Audio, "(STUBBED) called"); + LOG_DEBUG(Service_Audio, "(STUBBED) called"); + + auto result = renderer->UpdateAudioRenderer(ctx.ReadBuffer()); + + if (result.Succeeded()) { + ctx.WriteBuffer(result.Unwrap()); + } - ctx.WriteBuffer(renderer->UpdateAudioRenderer(ctx.ReadBuffer())); IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(RESULT_SUCCESS); + rb.Push(result.Code()); } void Start(Kernel::HLERequestContext& ctx) { @@ -252,8 +257,6 @@ private: } void GetAudioDeviceOutputVolume(Kernel::HLERequestContext& ctx) { - IPC::RequestParser rp{ctx}; - const auto device_name_buffer = ctx.ReadBuffer(); const std::string name = Common::StringFromBuffer(device_name_buffer); diff --git a/src/core/hle/service/es/es.cpp b/src/core/hle/service/es/es.cpp index 1f37bc4d6..f8e9df4b1 100644 --- a/src/core/hle/service/es/es.cpp +++ b/src/core/hle/service/es/es.cpp @@ -77,7 +77,6 @@ private: } void ImportTicket(Kernel::HLERequestContext& ctx) { - IPC::RequestParser rp{ctx}; const auto ticket = ctx.ReadBuffer(); const auto cert = ctx.ReadBuffer(1); diff --git a/src/core/hle/service/hid/controllers/npad.cpp b/src/core/hle/service/hid/controllers/npad.cpp index c1e32b28c..c55d900e2 100644 --- a/src/core/hle/service/hid/controllers/npad.cpp +++ b/src/core/hle/service/hid/controllers/npad.cpp @@ -107,6 +107,7 @@ void Controller_NPad::InitNewlyAddedControler(std::size_t controller_idx) { switch (controller_type) { case NPadControllerType::None: UNREACHABLE(); + break; case NPadControllerType::Handheld: controller.joy_styles.handheld.Assign(1); controller.device_type.handheld.Assign(1); @@ -363,6 +364,7 @@ void Controller_NPad::OnUpdate(const Core::Timing::CoreTiming& core_timing, u8* switch (controller_type) { case NPadControllerType::None: UNREACHABLE(); + break; case NPadControllerType::Handheld: handheld_entry.connection_status.raw = 0; handheld_entry.connection_status.IsWired.Assign(1); @@ -500,7 +502,7 @@ void Controller_NPad::SetNpadMode(u32 npad_id, NPadAssignments assignment_mode) void Controller_NPad::VibrateController(const std::vector<u32>& controller_ids, const std::vector<Vibration>& vibrations) { - LOG_WARNING(Service_HID, "(STUBBED) called"); + LOG_DEBUG(Service_HID, "(STUBBED) called"); if (!can_controllers_vibrate) { return; diff --git a/src/core/hle/service/hid/hid.cpp b/src/core/hle/service/hid/hid.cpp index d6ed5f304..d6031a987 100644 --- a/src/core/hle/service/hid/hid.cpp +++ b/src/core/hle/service/hid/hid.cpp @@ -14,6 +14,7 @@ #include "core/hle/ipc_helpers.h" #include "core/hle/kernel/client_port.h" #include "core/hle/kernel/client_session.h" +#include "core/hle/kernel/kernel.h" #include "core/hle/kernel/readable_event.h" #include "core/hle/kernel/shared_memory.h" #include "core/hle/kernel/writable_event.h" @@ -53,9 +54,7 @@ IAppletResource::IAppletResource(Core::System& system) RegisterHandlers(functions); auto& kernel = system.Kernel(); - shared_mem = Kernel::SharedMemory::Create( - kernel, nullptr, SHARED_MEMORY_SIZE, Kernel::MemoryPermission::ReadWrite, - Kernel::MemoryPermission::Read, 0, Kernel::MemoryRegion::BASE, "HID:SharedMemory"); + shared_mem = SharedFrom(&kernel.GetHidSharedMem()); MakeController<Controller_DebugPad>(HidController::DebugPad); MakeController<Controller_Touchscreen>(HidController::Touchscreen); diff --git a/src/core/hle/service/hid/irs.cpp b/src/core/hle/service/hid/irs.cpp index 5e79e2c1a..36ed6f7da 100644 --- a/src/core/hle/service/hid/irs.cpp +++ b/src/core/hle/service/hid/irs.cpp @@ -6,6 +6,7 @@ #include "core/core.h" #include "core/core_timing.h" #include "core/hle/ipc_helpers.h" +#include "core/hle/kernel/kernel.h" #include "core/hle/kernel/shared_memory.h" #include "core/hle/service/hid/irs.h" @@ -38,9 +39,8 @@ IRS::IRS(Core::System& system) : ServiceFramework{"irs"}, system(system) { RegisterHandlers(functions); auto& kernel = system.Kernel(); - shared_mem = Kernel::SharedMemory::Create( - kernel, nullptr, 0x8000, Kernel::MemoryPermission::ReadWrite, - Kernel::MemoryPermission::Read, 0, Kernel::MemoryRegion::BASE, "IRS:SharedMemory"); + + shared_mem = SharedFrom(&kernel.GetIrsSharedMem()); } void IRS::ActivateIrsensor(Kernel::HLERequestContext& ctx) { diff --git a/src/core/hle/service/ldr/ldr.cpp b/src/core/hle/service/ldr/ldr.cpp index 647943020..0cde7a557 100644 --- a/src/core/hle/service/ldr/ldr.cpp +++ b/src/core/hle/service/ldr/ldr.cpp @@ -8,14 +8,21 @@ #include "common/alignment.h" #include "common/hex_util.h" +#include "common/scope_exit.h" #include "core/hle/ipc_helpers.h" +#include "core/hle/kernel/errors.h" +#include "core/hle/kernel/memory/page_table.h" +#include "core/hle/kernel/memory/system_control.h" #include "core/hle/kernel/process.h" #include "core/hle/service/ldr/ldr.h" #include "core/hle/service/service.h" #include "core/loader/nro.h" +#include "core/memory.h" namespace Service::LDR { +constexpr ResultCode ERROR_INSUFFICIENT_ADDRESS_SPACE{ErrorModule::RO, 2}; + constexpr ResultCode ERROR_INVALID_MEMORY_STATE{ErrorModule::Loader, 51}; constexpr ResultCode ERROR_INVALID_NRO{ErrorModule::Loader, 52}; constexpr ResultCode ERROR_INVALID_NRR{ErrorModule::Loader, 53}; @@ -29,7 +36,61 @@ constexpr ResultCode ERROR_INVALID_NRO_ADDRESS{ErrorModule::Loader, 84}; constexpr ResultCode ERROR_INVALID_NRR_ADDRESS{ErrorModule::Loader, 85}; constexpr ResultCode ERROR_NOT_INITIALIZED{ErrorModule::Loader, 87}; -constexpr u64 MAXIMUM_LOADED_RO = 0x40; +constexpr std::size_t MAXIMUM_LOADED_RO{0x40}; +constexpr std::size_t MAXIMUM_MAP_RETRIES{0x200}; + +struct NRRHeader { + u32_le magic; + INSERT_PADDING_BYTES(12); + u64_le title_id_mask; + u64_le title_id_pattern; + INSERT_PADDING_BYTES(16); + std::array<u8, 0x100> modulus; + std::array<u8, 0x100> signature_1; + std::array<u8, 0x100> signature_2; + u64_le title_id; + u32_le size; + INSERT_PADDING_BYTES(4); + u32_le hash_offset; + u32_le hash_count; + INSERT_PADDING_BYTES(8); +}; +static_assert(sizeof(NRRHeader) == 0x350, "NRRHeader has incorrect size."); + +struct NROHeader { + INSERT_PADDING_WORDS(1); + u32_le mod_offset; + INSERT_PADDING_WORDS(2); + u32_le magic; + u32_le version; + u32_le nro_size; + u32_le flags; + u32_le text_offset; + u32_le text_size; + u32_le ro_offset; + u32_le ro_size; + u32_le rw_offset; + u32_le rw_size; + u32_le bss_size; + INSERT_PADDING_WORDS(1); + std::array<u8, 0x20> build_id; + INSERT_PADDING_BYTES(0x20); +}; +static_assert(sizeof(NROHeader) == 0x80, "NROHeader has invalid size."); + +using SHA256Hash = std::array<u8, 0x20>; + +struct NROInfo { + SHA256Hash hash{}; + VAddr nro_address{}; + std::size_t nro_size{}; + VAddr bss_address{}; + std::size_t bss_size{}; + std::size_t text_size{}; + std::size_t ro_size{}; + std::size_t data_size{}; + VAddr src_addr{}; +}; class DebugMonitor final : public ServiceFramework<DebugMonitor> { public: @@ -84,7 +145,7 @@ public: {0, &RelocatableObject::LoadNro, "LoadNro"}, {1, &RelocatableObject::UnloadNro, "UnloadNro"}, {2, &RelocatableObject::LoadNrr, "LoadNrr"}, - {3, &RelocatableObject::UnloadNrr, "UnloadNrr"}, + {3, nullptr, "UnloadNrr"}, {4, &RelocatableObject::Initialize, "Initialize"}, {10, nullptr, "LoadNrrEx"}, }; @@ -190,46 +251,125 @@ public: rb.Push(RESULT_SUCCESS); } - void UnloadNrr(Kernel::HLERequestContext& ctx) { - if (!initialized) { - LOG_ERROR(Service_LDR, "LDR:RO not initialized before use!"); - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(ERROR_NOT_INITIALIZED); - return; + bool ValidateRegionForMap(Kernel::Memory::PageTable& page_table, VAddr start, + std::size_t size) const { + constexpr std::size_t padding_size{4 * Kernel::Memory::PageSize}; + const auto start_info{page_table.QueryInfo(start - 1)}; + + if (start_info.state != Kernel::Memory::MemoryState::Free) { + return {}; } - struct Parameters { - u64_le process_id; - u64_le nrr_address; - }; + if (start_info.GetAddress() > (start - padding_size)) { + return {}; + } - IPC::RequestParser rp{ctx}; - const auto [process_id, nrr_address] = rp.PopRaw<Parameters>(); + const auto end_info{page_table.QueryInfo(start + size)}; - LOG_DEBUG(Service_LDR, "called with process_id={:016X}, nrr_addr={:016X}", process_id, - nrr_address); + if (end_info.state != Kernel::Memory::MemoryState::Free) { + return {}; + } - if (!Common::Is4KBAligned(nrr_address)) { - LOG_ERROR(Service_LDR, "NRR Address has invalid alignment (actual {:016X})!", - nrr_address); - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(ERROR_INVALID_ALIGNMENT); - return; + return (start + size + padding_size) <= (end_info.GetAddress() + end_info.GetSize()); + } + + VAddr GetRandomMapRegion(const Kernel::Memory::PageTable& page_table, std::size_t size) const { + VAddr addr{}; + const std::size_t end_pages{(page_table.GetAliasCodeRegionSize() - size) >> + Kernel::Memory::PageBits}; + do { + addr = page_table.GetAliasCodeRegionStart() + + (Kernel::Memory::SystemControl::GenerateRandomRange(0, end_pages) + << Kernel::Memory::PageBits); + } while (!page_table.IsInsideAddressSpace(addr, size) || + page_table.IsInsideHeapRegion(addr, size) || + page_table.IsInsideAliasRegion(addr, size)); + return addr; + } + + ResultVal<VAddr> MapProcessCodeMemory(Kernel::Process* process, VAddr baseAddress, + u64 size) const { + for (int retry{}; retry < MAXIMUM_MAP_RETRIES; retry++) { + auto& page_table{process->PageTable()}; + const VAddr addr{GetRandomMapRegion(page_table, size)}; + const ResultCode result{page_table.MapProcessCodeMemory(addr, baseAddress, size)}; + + if (result == Kernel::ERR_INVALID_ADDRESS_STATE) { + continue; + } + + CASCADE_CODE(result); + + if (ValidateRegionForMap(page_table, addr, size)) { + return MakeResult<VAddr>(addr); + } } - const auto iter = nrr.find(nrr_address); - if (iter == nrr.end()) { - LOG_ERROR(Service_LDR, - "Attempting to unload NRR which has not been loaded! (addr={:016X})", - nrr_address); - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(ERROR_INVALID_NRR_ADDRESS); - return; + return ERROR_INSUFFICIENT_ADDRESS_SPACE; + } + + ResultVal<VAddr> MapNro(Kernel::Process* process, VAddr nro_addr, std::size_t nro_size, + VAddr bss_addr, std::size_t bss_size, std::size_t size) const { + + for (int retry{}; retry < MAXIMUM_MAP_RETRIES; retry++) { + auto& page_table{process->PageTable()}; + VAddr addr{}; + + CASCADE_RESULT(addr, MapProcessCodeMemory(process, nro_addr, nro_size)); + + if (bss_size) { + auto block_guard = detail::ScopeExit([&] { + page_table.UnmapProcessCodeMemory(addr + nro_size, bss_addr, bss_size); + page_table.UnmapProcessCodeMemory(addr, nro_addr, nro_size); + }); + + const ResultCode result{ + page_table.MapProcessCodeMemory(addr + nro_size, bss_addr, bss_size)}; + + if (result == Kernel::ERR_INVALID_ADDRESS_STATE) { + continue; + } + + if (result.IsError()) { + return result; + } + + block_guard.Cancel(); + } + + if (ValidateRegionForMap(page_table, addr, size)) { + return MakeResult<VAddr>(addr); + } } - nrr.erase(iter); - IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(RESULT_SUCCESS); + return ERROR_INSUFFICIENT_ADDRESS_SPACE; + } + + ResultCode LoadNro(Kernel::Process* process, const NROHeader& nro_header, VAddr nro_addr, + VAddr start) const { + const VAddr text_start{start + nro_header.text_offset}; + const VAddr ro_start{start + nro_header.ro_offset}; + const VAddr data_start{start + nro_header.rw_offset}; + const VAddr bss_start{data_start + nro_header.rw_size}; + const VAddr bss_end_addr{ + Common::AlignUp(bss_start + nro_header.bss_size, Kernel::Memory::PageSize)}; + + auto CopyCode{[&](VAddr src_addr, VAddr dst_addr, u64 size) { + std::vector<u8> source_data(size); + system.Memory().ReadBlock(src_addr, source_data.data(), source_data.size()); + system.Memory().WriteBlock(dst_addr, source_data.data(), source_data.size()); + }}; + CopyCode(nro_addr + nro_header.text_offset, text_start, nro_header.text_size); + CopyCode(nro_addr + nro_header.ro_offset, ro_start, nro_header.ro_size); + CopyCode(nro_addr + nro_header.rw_offset, data_start, nro_header.rw_size); + + CASCADE_CODE(process->PageTable().SetCodeMemoryPermission( + text_start, ro_start - text_start, Kernel::Memory::MemoryPermission::ReadAndExecute)); + CASCADE_CODE(process->PageTable().SetCodeMemoryPermission( + ro_start, data_start - ro_start, Kernel::Memory::MemoryPermission::Read)); + + return process->PageTable().SetCodeMemoryPermission( + data_start, bss_end_addr - data_start, Kernel::Memory::MemoryPermission::ReadAndWrite); } void LoadNro(Kernel::HLERequestContext& ctx) { @@ -317,9 +457,9 @@ public: return; } - NROHeader header; + // Load and validate the NRO header + NROHeader header{}; std::memcpy(&header, nro_data.data(), sizeof(NROHeader)); - if (!IsValidNRO(header, nro_size, bss_size)) { LOG_ERROR(Service_LDR, "NRO was invalid!"); IPC::ResponseBuilder rb{ctx, 2}; @@ -327,62 +467,48 @@ public: return; } - // Load NRO as new executable module - auto* process = system.CurrentProcess(); - auto& vm_manager = process->VMManager(); - auto map_address = vm_manager.FindFreeRegion(nro_size + bss_size); - - if (!map_address.Succeeded() || - *map_address + nro_size + bss_size > vm_manager.GetAddressSpaceEndAddress()) { - - LOG_ERROR(Service_LDR, - "General error while allocation memory or no available memory to allocate!"); + // Map memory for the NRO + const auto map_result{MapNro(system.CurrentProcess(), nro_address, nro_size, bss_address, + bss_size, nro_size + bss_size)}; + if (map_result.Failed()) { IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(ERROR_INVALID_MEMORY_STATE); - return; + rb.Push(map_result.Code()); } - // Mark text and read-only region as ModuleCode - ASSERT(vm_manager - .MirrorMemory(*map_address, nro_address, header.text_size + header.ro_size, - Kernel::MemoryState::ModuleCode) - .IsSuccess()); - // Mark read/write region as ModuleCodeData, which is necessary if this region is used for - // TransferMemory (e.g. Final Fantasy VIII Remastered does this) - ASSERT(vm_manager - .MirrorMemory(*map_address + header.rw_offset, nro_address + header.rw_offset, - header.rw_size, Kernel::MemoryState::ModuleCodeData) - .IsSuccess()); - // Revoke permissions from the old memory region - ASSERT(vm_manager.ReprotectRange(nro_address, nro_size, Kernel::VMAPermission::None) - .IsSuccess()); - - if (bss_size > 0) { - // Mark BSS region as ModuleCodeData, which is necessary if this region is used for - // TransferMemory (e.g. Final Fantasy VIII Remastered does this) - ASSERT(vm_manager - .MirrorMemory(*map_address + nro_size, bss_address, bss_size, - Kernel::MemoryState::ModuleCodeData) - .IsSuccess()); - ASSERT(vm_manager.ReprotectRange(bss_address, bss_size, Kernel::VMAPermission::None) - .IsSuccess()); + // Load the NRO into the mapped memory + if (const auto result{LoadNro(system.CurrentProcess(), header, nro_address, *map_result)}; + result.IsError()) { + IPC::ResponseBuilder rb{ctx, 2}; + rb.Push(map_result.Code()); } - vm_manager.ReprotectRange(*map_address, header.text_size, - Kernel::VMAPermission::ReadExecute); - vm_manager.ReprotectRange(*map_address + header.ro_offset, header.ro_size, - Kernel::VMAPermission::Read); - vm_manager.ReprotectRange(*map_address + header.rw_offset, header.rw_size, - Kernel::VMAPermission::ReadWrite); + // Track the loaded NRO + nro.insert_or_assign(*map_result, NROInfo{hash, *map_result, nro_size, bss_address, + bss_size, header.text_size, header.ro_size, + header.rw_size, nro_address}); + // Invalidate JIT caches for the newly mapped process code system.InvalidateCpuInstructionCaches(); - nro.insert_or_assign(*map_address, - NROInfo{hash, nro_address, nro_size, bss_address, bss_size}); - IPC::ResponseBuilder rb{ctx, 4}; rb.Push(RESULT_SUCCESS); - rb.Push(*map_address); + rb.Push(*map_result); + } + + ResultCode UnmapNro(const NROInfo& info) { + // Each region must be unmapped separately to validate memory state + auto& page_table{system.CurrentProcess()->PageTable()}; + CASCADE_CODE(page_table.UnmapProcessCodeMemory(info.nro_address + info.text_size + + info.ro_size + info.data_size, + info.bss_address, info.bss_size)); + CASCADE_CODE(page_table.UnmapProcessCodeMemory( + info.nro_address + info.text_size + info.ro_size, + info.src_addr + info.text_size + info.ro_size, info.data_size)); + CASCADE_CODE(page_table.UnmapProcessCodeMemory( + info.nro_address + info.text_size, info.src_addr + info.text_size, info.ro_size)); + CASCADE_CODE( + page_table.UnmapProcessCodeMemory(info.nro_address, info.src_addr, info.text_size)); + return RESULT_SUCCESS; } void UnloadNro(Kernel::HLERequestContext& ctx) { @@ -422,30 +548,15 @@ public: return; } - auto& vm_manager = system.CurrentProcess()->VMManager(); - const auto& nro_info = iter->second; - - // Unmap the mirrored memory - ASSERT( - vm_manager.UnmapRange(nro_address, nro_info.nro_size + nro_info.bss_size).IsSuccess()); - - // Reprotect the source memory - ASSERT(vm_manager - .ReprotectRange(nro_info.nro_address, nro_info.nro_size, - Kernel::VMAPermission::ReadWrite) - .IsSuccess()); - if (nro_info.bss_size > 0) { - ASSERT(vm_manager - .ReprotectRange(nro_info.bss_address, nro_info.bss_size, - Kernel::VMAPermission::ReadWrite) - .IsSuccess()); - } + const auto result{UnmapNro(iter->second)}; system.InvalidateCpuInstructionCaches(); nro.erase(iter); + IPC::ResponseBuilder rb{ctx, 2}; - rb.Push(RESULT_SUCCESS); + + rb.Push(result); } void Initialize(Kernel::HLERequestContext& ctx) { @@ -458,56 +569,7 @@ public: } private: - using SHA256Hash = std::array<u8, 0x20>; - - struct NROHeader { - INSERT_PADDING_WORDS(1); - u32_le mod_offset; - INSERT_PADDING_WORDS(2); - u32_le magic; - u32_le version; - u32_le nro_size; - u32_le flags; - u32_le text_offset; - u32_le text_size; - u32_le ro_offset; - u32_le ro_size; - u32_le rw_offset; - u32_le rw_size; - u32_le bss_size; - INSERT_PADDING_WORDS(1); - std::array<u8, 0x20> build_id; - INSERT_PADDING_BYTES(0x20); - }; - static_assert(sizeof(NROHeader) == 0x80, "NROHeader has invalid size."); - - struct NRRHeader { - u32_le magic; - INSERT_PADDING_BYTES(12); - u64_le title_id_mask; - u64_le title_id_pattern; - INSERT_PADDING_BYTES(16); - std::array<u8, 0x100> modulus; - std::array<u8, 0x100> signature_1; - std::array<u8, 0x100> signature_2; - u64_le title_id; - u32_le size; - INSERT_PADDING_BYTES(4); - u32_le hash_offset; - u32_le hash_count; - INSERT_PADDING_BYTES(8); - }; - static_assert(sizeof(NRRHeader) == 0x350, "NRRHeader has incorrect size."); - - struct NROInfo { - SHA256Hash hash; - VAddr nro_address; - u64 nro_size; - VAddr bss_address; - u64 bss_size; - }; - - bool initialized = false; + bool initialized{}; std::map<VAddr, NROInfo> nro; std::map<VAddr, std::vector<SHA256Hash>> nrr; diff --git a/src/core/hle/service/lm/lm.cpp b/src/core/hle/service/lm/lm.cpp index 346c8f899..dec96b771 100644 --- a/src/core/hle/service/lm/lm.cpp +++ b/src/core/hle/service/lm/lm.cpp @@ -17,7 +17,7 @@ namespace Service::LM { class ILogger final : public ServiceFramework<ILogger> { public: - explicit ILogger(Manager& manager_, Memory::Memory& memory_) + explicit ILogger(Manager& manager_, Core::Memory::Memory& memory_) : ServiceFramework("ILogger"), manager{manager_}, memory{memory_} { static const FunctionInfo functions[] = { {0, &ILogger::Log, "Log"}, @@ -75,12 +75,12 @@ private: } Manager& manager; - Memory::Memory& memory; + Core::Memory::Memory& memory; }; class LM final : public ServiceFramework<LM> { public: - explicit LM(Manager& manager_, Memory::Memory& memory_) + explicit LM(Manager& manager_, Core::Memory::Memory& memory_) : ServiceFramework{"lm"}, manager{manager_}, memory{memory_} { // clang-format off static const FunctionInfo functions[] = { @@ -101,7 +101,7 @@ private: } Manager& manager; - Memory::Memory& memory; + Core::Memory::Memory& memory; }; void InstallInterfaces(Core::System& system) { diff --git a/src/core/hle/service/ns/pl_u.cpp b/src/core/hle/service/ns/pl_u.cpp index 8da4e52c5..ab1746d28 100644 --- a/src/core/hle/service/ns/pl_u.cpp +++ b/src/core/hle/service/ns/pl_u.cpp @@ -19,6 +19,7 @@ #include "core/file_sys/romfs.h" #include "core/file_sys/system_archive/system_archive.h" #include "core/hle/ipc_helpers.h" +#include "core/hle/kernel/kernel.h" #include "core/hle/kernel/physical_memory.h" #include "core/hle/kernel/shared_memory.h" #include "core/hle/service/filesystem/filesystem.h" @@ -265,16 +266,13 @@ void PL_U::GetSharedMemoryAddressOffset(Kernel::HLERequestContext& ctx) { void PL_U::GetSharedMemoryNativeHandle(Kernel::HLERequestContext& ctx) { // Map backing memory for the font data LOG_DEBUG(Service_NS, "called"); - system.CurrentProcess()->VMManager().MapMemoryBlock(SHARED_FONT_MEM_VADDR, impl->shared_font, 0, - SHARED_FONT_MEM_SIZE, - Kernel::MemoryState::Shared); // Create shared font memory object auto& kernel = system.Kernel(); - impl->shared_font_mem = Kernel::SharedMemory::Create( - kernel, system.CurrentProcess(), SHARED_FONT_MEM_SIZE, Kernel::MemoryPermission::ReadWrite, - Kernel::MemoryPermission::Read, SHARED_FONT_MEM_VADDR, Kernel::MemoryRegion::BASE, - "PL_U:shared_font_mem"); + impl->shared_font_mem = SharedFrom(&kernel.GetFontSharedMem()); + + std::memcpy(impl->shared_font_mem->GetPointer(), impl->shared_font->data(), + impl->shared_font->size()); IPC::ResponseBuilder rb{ctx, 2, 1}; rb.Push(RESULT_SUCCESS); diff --git a/src/core/hle/service/time/standard_network_system_clock_core.h b/src/core/hle/service/time/standard_network_system_clock_core.h index 3f505c37c..c993bdf79 100644 --- a/src/core/hle/service/time/standard_network_system_clock_core.h +++ b/src/core/hle/service/time/standard_network_system_clock_core.h @@ -23,7 +23,7 @@ public: standard_network_clock_sufficient_accuracy = value; } - bool IsStandardNetworkSystemClockAccuracySufficient(Core::System& system) { + bool IsStandardNetworkSystemClockAccuracySufficient(Core::System& system) const { SystemClockContext context{}; if (GetClockContext(system, context) != RESULT_SUCCESS) { return {}; diff --git a/src/core/hle/service/time/steady_clock_core.h b/src/core/hle/service/time/steady_clock_core.h index 84af3d105..d80a2385f 100644 --- a/src/core/hle/service/time/steady_clock_core.h +++ b/src/core/hle/service/time/steady_clock_core.h @@ -16,6 +16,7 @@ namespace Service::Time::Clock { class SteadyClockCore { public: SteadyClockCore() = default; + virtual ~SteadyClockCore() = default; const Common::UUID& GetClockSourceId() const { return clock_source_id; diff --git a/src/core/hle/service/time/system_clock_context_update_callback.h b/src/core/hle/service/time/system_clock_context_update_callback.h index 6260de6c3..2b0fa7e75 100644 --- a/src/core/hle/service/time/system_clock_context_update_callback.h +++ b/src/core/hle/service/time/system_clock_context_update_callback.h @@ -20,7 +20,7 @@ namespace Service::Time::Clock { class SystemClockContextUpdateCallback { public: SystemClockContextUpdateCallback(); - ~SystemClockContextUpdateCallback(); + virtual ~SystemClockContextUpdateCallback(); bool NeedUpdate(const SystemClockContext& value) const; diff --git a/src/core/hle/service/time/system_clock_core.cpp b/src/core/hle/service/time/system_clock_core.cpp index 1a3ab8cfa..d31d4e2ca 100644 --- a/src/core/hle/service/time/system_clock_core.cpp +++ b/src/core/hle/service/time/system_clock_core.cpp @@ -9,7 +9,7 @@ namespace Service::Time::Clock { SystemClockCore::SystemClockCore(SteadyClockCore& steady_clock_core) - : steady_clock_core{steady_clock_core}, is_initialized{} { + : steady_clock_core{steady_clock_core} { context.steady_time_point.clock_source_id = steady_clock_core.GetClockSourceId(); } diff --git a/src/core/hle/service/time/system_clock_core.h b/src/core/hle/service/time/system_clock_core.h index 54407a6c5..608dd3b2e 100644 --- a/src/core/hle/service/time/system_clock_core.h +++ b/src/core/hle/service/time/system_clock_core.h @@ -22,7 +22,7 @@ class SystemClockContextUpdateCallback; class SystemClockCore { public: explicit SystemClockCore(SteadyClockCore& steady_clock_core); - ~SystemClockCore(); + virtual ~SystemClockCore(); SteadyClockCore& GetSteadyClockCore() const { return steady_clock_core; diff --git a/src/core/hle/service/time/time_sharedmemory.cpp b/src/core/hle/service/time/time_sharedmemory.cpp index fdaef233f..999ec1e51 100644 --- a/src/core/hle/service/time/time_sharedmemory.cpp +++ b/src/core/hle/service/time/time_sharedmemory.cpp @@ -6,6 +6,7 @@ #include "core/core_timing.h" #include "core/core_timing_util.h" #include "core/hardware_properties.h" +#include "core/hle/kernel/kernel.h" #include "core/hle/service/time/clock_types.h" #include "core/hle/service/time/steady_clock_core.h" #include "core/hle/service/time/time_sharedmemory.h" @@ -15,9 +16,7 @@ namespace Service::Time { static constexpr std::size_t SHARED_MEMORY_SIZE{0x1000}; SharedMemory::SharedMemory(Core::System& system) : system(system) { - shared_memory_holder = Kernel::SharedMemory::Create( - system.Kernel(), nullptr, SHARED_MEMORY_SIZE, Kernel::MemoryPermission::ReadWrite, - Kernel::MemoryPermission::Read, 0, Kernel::MemoryRegion::BASE, "Time:SharedMemory"); + shared_memory_holder = SharedFrom(&system.Kernel().GetTimeSharedMem()); std::memset(shared_memory_holder->GetPointer(), 0, SHARED_MEMORY_SIZE); } diff --git a/src/core/hle/service/time/time_zone_manager.cpp b/src/core/hle/service/time/time_zone_manager.cpp index c8159bcd5..69152d0ac 100644 --- a/src/core/hle/service/time/time_zone_manager.cpp +++ b/src/core/hle/service/time/time_zone_manager.cpp @@ -518,8 +518,8 @@ static bool ParseTimeZoneBinary(TimeZoneRule& time_zone_rule, FileSys::VirtualFi constexpr s32 time_zone_max_leaps{50}; constexpr s32 time_zone_max_chars{50}; if (!(0 <= header.leap_count && header.leap_count < time_zone_max_leaps && - 0 < header.type_count && header.type_count < time_zone_rule.ttis.size() && - 0 <= header.time_count && header.time_count < time_zone_rule.ats.size() && + 0 < header.type_count && header.type_count < s32(time_zone_rule.ttis.size()) && + 0 <= header.time_count && header.time_count < s32(time_zone_rule.ats.size()) && 0 <= header.char_count && header.char_count < time_zone_max_chars && (header.ttis_std_count == header.type_count || header.ttis_std_count == 0) && (header.ttis_gmt_count == header.type_count || header.ttis_gmt_count == 0))) { |