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-rw-r--r--src/core/hle/kernel/client_session.cpp3
-rw-r--r--src/core/hle/kernel/client_session.h4
-rw-r--r--src/core/hle/kernel/errors.h1
-rw-r--r--src/core/hle/kernel/kernel.cpp122
-rw-r--r--src/core/hle/kernel/kernel.h44
-rw-r--r--src/core/hle/kernel/memory/address_space_info.cpp118
-rw-r--r--src/core/hle/kernel/memory/address_space_info.h54
-rw-r--r--src/core/hle/kernel/memory/memory_block.h318
-rw-r--r--src/core/hle/kernel/memory/memory_block_manager.cpp190
-rw-r--r--src/core/hle/kernel/memory/memory_block_manager.h64
-rw-r--r--src/core/hle/kernel/memory/memory_layout.h73
-rw-r--r--src/core/hle/kernel/memory/memory_manager.cpp176
-rw-r--r--src/core/hle/kernel/memory/memory_manager.h97
-rw-r--r--src/core/hle/kernel/memory/memory_types.h18
-rw-r--r--src/core/hle/kernel/memory/page_heap.cpp119
-rw-r--r--src/core/hle/kernel/memory/page_heap.h370
-rw-r--r--src/core/hle/kernel/memory/page_linked_list.h93
-rw-r--r--src/core/hle/kernel/memory/page_table.cpp1130
-rw-r--r--src/core/hle/kernel/memory/page_table.h276
-rw-r--r--src/core/hle/kernel/memory/slab_heap.h164
-rw-r--r--src/core/hle/kernel/memory/system_control.cpp41
-rw-r--r--src/core/hle/kernel/memory/system_control.h18
-rw-r--r--src/core/hle/kernel/physical_memory.h2
-rw-r--r--src/core/hle/kernel/process.cpp200
-rw-r--r--src/core/hle/kernel/process.h45
-rw-r--r--src/core/hle/kernel/process_capability.cpp24
-rw-r--r--src/core/hle/kernel/process_capability.h24
-rw-r--r--src/core/hle/kernel/resource_limit.cpp50
-rw-r--r--src/core/hle/kernel/resource_limit.h12
-rw-r--r--src/core/hle/kernel/server_session.cpp5
-rw-r--r--src/core/hle/kernel/server_session.h6
-rw-r--r--src/core/hle/kernel/shared_memory.cpp151
-rw-r--r--src/core/hle/kernel/shared_memory.h127
-rw-r--r--src/core/hle/kernel/svc.cpp621
-rw-r--r--src/core/hle/kernel/svc.h6
-rw-r--r--src/core/hle/kernel/svc_types.h68
-rw-r--r--src/core/hle/kernel/transfer_memory.cpp104
-rw-r--r--src/core/hle/kernel/transfer_memory.h55
-rw-r--r--src/core/hle/kernel/vm_manager.cpp1175
-rw-r--r--src/core/hle/kernel/vm_manager.h796
-rw-r--r--src/core/hle/service/audio/audout_u.cpp2
-rw-r--r--src/core/hle/service/hid/hid.cpp5
-rw-r--r--src/core/hle/service/hid/irs.cpp6
-rw-r--r--src/core/hle/service/ldr/ldr.cpp362
-rw-r--r--src/core/hle/service/lm/lm.cpp8
-rw-r--r--src/core/hle/service/ns/pl_u.cpp12
-rw-r--r--src/core/hle/service/time/time_sharedmemory.cpp5
47 files changed, 4238 insertions, 3126 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/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..049403e15
--- /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 = reinterpret_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 = reinterpret_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/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/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/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/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);
}