core/hle/kernel/svc: Implement svcMapTransferMemory
Now that transfer memory handling is separated from shared memory, we can implement svcMapTransferMemory pretty trivially.
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@ -1590,6 +1590,62 @@ static ResultCode CreateTransferMemory(Handle* handle, VAddr addr, u64 size, u32
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return RESULT_SUCCESS;
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}
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static ResultCode MapTransferMemory(Handle handle, VAddr address, u64 size, u32 permission_raw) {
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LOG_DEBUG(Kernel_SVC,
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"called. handle=0x{:08X}, address=0x{:016X}, size=0x{:016X}, permissions=0x{:08X}",
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handle, address, size, permission_raw);
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if (!Common::Is4KBAligned(address)) {
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LOG_ERROR(Kernel_SVC, "Transfer memory addresses must be 4KB aligned (size=0x{:016X}).",
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address);
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return ERR_INVALID_ADDRESS;
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}
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if (size == 0 || !Common::Is4KBAligned(size)) {
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LOG_ERROR(Kernel_SVC,
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"Transfer memory sizes must be 4KB aligned and not be zero (size=0x{:016X}).",
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size);
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return ERR_INVALID_SIZE;
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}
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if (!IsValidAddressRange(address, size)) {
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LOG_ERROR(Kernel_SVC,
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"Given address and size overflows the 64-bit range (address=0x{:016X}, "
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"size=0x{:016X}).",
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address, size);
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return ERR_INVALID_ADDRESS_STATE;
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}
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const auto permissions = static_cast<MemoryPermission>(permission_raw);
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if (permissions != MemoryPermission::None && permissions != MemoryPermission::Read &&
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permissions != MemoryPermission::ReadWrite) {
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LOG_ERROR(Kernel_SVC, "Invalid transfer memory permissions given (permissions=0x{:08X}).",
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permission_raw);
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return ERR_INVALID_STATE;
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}
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const auto& kernel = Core::System::GetInstance().Kernel();
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const auto* const current_process = kernel.CurrentProcess();
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const auto& handle_table = current_process->GetHandleTable();
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auto transfer_memory = handle_table.Get<TransferMemory>(handle);
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if (!transfer_memory) {
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LOG_ERROR(Kernel_SVC, "Nonexistent transfer memory handle given (handle=0x{:08X}).",
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handle);
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return ERR_INVALID_HANDLE;
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}
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if (!current_process->VMManager().IsWithinASLRRegion(address, size)) {
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LOG_ERROR(Kernel_SVC,
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"Given address and size don't fully fit within the ASLR region "
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"(address=0x{:016X}, size=0x{:016X}).",
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address, size);
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return ERR_INVALID_MEMORY_RANGE;
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}
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return transfer_memory->MapMemory(address, size, permissions);
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}
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static ResultCode GetThreadCoreMask(Handle thread_handle, u32* core, u64* mask) {
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LOG_TRACE(Kernel_SVC, "called, handle=0x{:08X}", thread_handle);
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@ -1965,7 +2021,7 @@ static const FunctionDef SVC_Table[] = {
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{0x4E, nullptr, "ReadWriteRegister"},
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{0x4F, nullptr, "SetProcessActivity"},
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{0x50, SvcWrap<CreateSharedMemory>, "CreateSharedMemory"},
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{0x51, nullptr, "MapTransferMemory"},
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{0x51, SvcWrap<MapTransferMemory>, "MapTransferMemory"},
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{0x52, nullptr, "UnmapTransferMemory"},
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{0x53, nullptr, "CreateInterruptEvent"},
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{0x54, nullptr, "QueryPhysicalAddress"},
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