diff options
Diffstat (limited to '')
-rw-r--r-- | src/core/hle/kernel/svc.cpp | 8 | ||||
-rw-r--r-- | src/core/hle/kernel/transfer_memory.cpp | 66 | ||||
-rw-r--r-- | src/core/hle/kernel/transfer_memory.h | 19 | ||||
-rw-r--r-- | src/core/hle/kernel/vm_manager.cpp | 3 | ||||
-rw-r--r-- | src/core/hle/kernel/vm_manager.h | 60 |
5 files changed, 116 insertions, 40 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 1d99bf7a2..9cae5c73d 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -1863,10 +1863,14 @@ static ResultCode CreateTransferMemory(Core::System& system, Handle* handle, VAd } auto& kernel = system.Kernel(); - auto transfer_mem_handle = TransferMemory::Create(kernel, addr, size, perms); + auto transfer_mem_handle = TransferMemory::Create(kernel, system.Memory(), addr, size, perms); + + if (const auto reserve_result{transfer_mem_handle->Reserve()}; reserve_result.IsError()) { + return reserve_result; + } auto& handle_table = kernel.CurrentProcess()->GetHandleTable(); - const auto result = handle_table.Create(std::move(transfer_mem_handle)); + const auto result{handle_table.Create(std::move(transfer_mem_handle))}; if (result.Failed()) { return result.Code(); } diff --git a/src/core/hle/kernel/transfer_memory.cpp b/src/core/hle/kernel/transfer_memory.cpp index f0e73f57b..f2d3f8b49 100644 --- a/src/core/hle/kernel/transfer_memory.cpp +++ b/src/core/hle/kernel/transfer_memory.cpp @@ -8,15 +8,23 @@ #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) : Object{kernel} {} -TransferMemory::~TransferMemory() = default; +TransferMemory::TransferMemory(KernelCore& kernel, Memory::Memory& memory) + : Object{kernel}, memory{memory} {} -std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel, VAddr base_address, - u64 size, MemoryPermission permissions) { - std::shared_ptr<TransferMemory> transfer_memory{std::make_shared<TransferMemory>(kernel)}; +TransferMemory::~TransferMemory() { + // Release memory region when transfer memory is destroyed + Reset(); +} + +std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel, Memory::Memory& memory, + VAddr base_address, u64 size, + 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; @@ -27,7 +35,7 @@ std::shared_ptr<TransferMemory> TransferMemory::Create(KernelCore& kernel, VAddr } const u8* TransferMemory::GetPointer() const { - return backing_block.get()->data(); + return memory.GetPointer(base_address); } u64 TransferMemory::GetSize() const { @@ -62,6 +70,52 @@ ResultCode TransferMemory::MapMemory(VAddr address, u64 size, MemoryPermission p 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); +} + +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; diff --git a/src/core/hle/kernel/transfer_memory.h b/src/core/hle/kernel/transfer_memory.h index 0a6e15d18..6e388536a 100644 --- a/src/core/hle/kernel/transfer_memory.h +++ b/src/core/hle/kernel/transfer_memory.h @@ -11,6 +11,10 @@ union ResultCode; +namespace Memory { +class Memory; +} + namespace Kernel { class KernelCore; @@ -26,12 +30,13 @@ enum class MemoryPermission : u32; /// class TransferMemory final : public Object { public: - explicit TransferMemory(KernelCore& kernel); + explicit TransferMemory(KernelCore& kernel, Memory::Memory& memory); ~TransferMemory() override; static constexpr HandleType HANDLE_TYPE = HandleType::TransferMemory; - static std::shared_ptr<TransferMemory> Create(KernelCore& kernel, VAddr base_address, u64 size, + static std::shared_ptr<TransferMemory> Create(KernelCore& kernel, Memory::Memory& memory, + VAddr base_address, u64 size, MemoryPermission permissions); TransferMemory(const TransferMemory&) = delete; @@ -80,6 +85,14 @@ public: /// ResultCode UnmapMemory(VAddr address, u64 size); + /// Reserves the region to be used for the transfer memory, called after the transfer memory is + /// created. + ResultCode Reserve(); + + /// Resets the region previously used for the transfer memory, called after the transfer memory + /// is closed. + ResultCode Reset(); + private: /// Memory block backing this instance. std::shared_ptr<PhysicalMemory> backing_block; @@ -98,6 +111,8 @@ private: /// Whether or not this transfer memory instance has mapped memory. bool is_mapped = false; + + Memory::Memory& memory; }; } // namespace Kernel diff --git a/src/core/hle/kernel/vm_manager.cpp b/src/core/hle/kernel/vm_manager.cpp index 0b3500fce..024c22901 100644 --- a/src/core/hle/kernel/vm_manager.cpp +++ b/src/core/hle/kernel/vm_manager.cpp @@ -544,7 +544,8 @@ MemoryInfo VMManager::QueryMemory(VAddr address) const { ResultCode VMManager::SetMemoryAttribute(VAddr address, u64 size, MemoryAttribute mask, MemoryAttribute attribute) { - constexpr auto ignore_mask = MemoryAttribute::Uncached | MemoryAttribute::DeviceMapped; + constexpr auto ignore_mask = + MemoryAttribute::Uncached | MemoryAttribute::DeviceMapped | MemoryAttribute::Locked; constexpr auto attribute_mask = ~ignore_mask; const auto result = CheckRangeState( diff --git a/src/core/hle/kernel/vm_manager.h b/src/core/hle/kernel/vm_manager.h index 850a7ebc3..90b4b006a 100644 --- a/src/core/hle/kernel/vm_manager.h +++ b/src/core/hle/kernel/vm_manager.h @@ -98,6 +98,8 @@ enum class MemoryAttribute : u32 { DeviceMapped = 4, /// Uncached memory Uncached = 8, + + IpcAndDeviceMapped = LockedForIPC | DeviceMapped, }; constexpr MemoryAttribute operator|(MemoryAttribute lhs, MemoryAttribute rhs) { @@ -654,6 +656,35 @@ public: /// 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; @@ -707,35 +738,6 @@ private: /// Clears out the page table void ClearPageTable(); - 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; - /// Gets the amount of memory currently mapped (state != Unmapped) in a range. ResultVal<std::size_t> SizeOfAllocatedVMAsInRange(VAddr address, std::size_t size) const; |