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core/hle/kernel/svc: Implement svcUnmapTransferMemory

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Similarly, like svcMapTransferMemory, we can also implement
svcUnmapTransferMemory fairly trivially as well.
This commit is contained in:
Lioncash 2019-03-13 05:02:14 -04:00
parent 567134f874
commit 5379063108
1 changed files with 48 additions and 1 deletions
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49
src/core/hle/kernel/svc.cpp
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@ -1646,6 +1646,53 @@ static ResultCode MapTransferMemory(Handle handle, VAddr address, u64 size, u32
return transfer_memory->MapMemory(address, size, permissions);
}
static ResultCode UnmapTransferMemory(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 = Core::System::GetInstance().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(Handle thread_handle, u32* core, u64* mask) {
LOG_TRACE(Kernel_SVC, "called, handle=0x{:08X}", thread_handle);
@ -2022,7 +2069,7 @@ static const FunctionDef SVC_Table[] = {
{0x4F, nullptr, "SetProcessActivity"},
{0x50, SvcWrap<CreateSharedMemory>, "CreateSharedMemory"},
{0x51, SvcWrap<MapTransferMemory>, "MapTransferMemory"},
{0x52, nullptr, "UnmapTransferMemory"},
{0x52, SvcWrap<UnmapTransferMemory>, "UnmapTransferMemory"},
{0x53, nullptr, "CreateInterruptEvent"},
{0x54, nullptr, "QueryPhysicalAddress"},
{0x55, nullptr, "QueryIoMapping"},