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kernel: implement transfer memory

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This commit is contained in:
Liam
2023-10-04 22:15:10 -04:00
parent 7a0da729b4
commit e797a917a9
5 changed files with 160 additions and 17 deletions
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54
src/core/hle/kernel/svc/svc_transfer_memory.cpp
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@ -71,15 +71,59 @@ Result CreateTransferMemory(Core::System& system, Handle* out, u64 address, u64
}
Result MapTransferMemory(Core::System& system, Handle trmem_handle, uint64_t address, uint64_t size,
MemoryPermission owner_perm) {
UNIMPLEMENTED();
R_THROW(ResultNotImplemented);
MemoryPermission map_perm) {
// Validate the address/size.
R_UNLESS(Common::IsAligned(address, PageSize), ResultInvalidAddress);
R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize);
R_UNLESS(size > 0, ResultInvalidSize);
R_UNLESS((address < address + size), ResultInvalidCurrentMemory);
// Validate the permission.
R_UNLESS(IsValidTransferMemoryPermission(map_perm), ResultInvalidState);
// Get the transfer memory.
KScopedAutoObject trmem = GetCurrentProcess(system.Kernel())
.GetHandleTable()
.GetObject<KTransferMemory>(trmem_handle);
R_UNLESS(trmem.IsNotNull(), ResultInvalidHandle);
// Verify that the mapping is in range.
R_UNLESS(GetCurrentProcess(system.Kernel())
.GetPageTable()
.CanContain(address, size, KMemoryState::Transfered),
ResultInvalidMemoryRegion);
// Map the transfer memory.
R_TRY(trmem->Map(address, size, map_perm));
// We succeeded.
R_SUCCEED();
}
Result UnmapTransferMemory(Core::System& system, Handle trmem_handle, uint64_t address,
uint64_t size) {
UNIMPLEMENTED();
R_THROW(ResultNotImplemented);
// Validate the address/size.
R_UNLESS(Common::IsAligned(address, PageSize), ResultInvalidAddress);
R_UNLESS(Common::IsAligned(size, PageSize), ResultInvalidSize);
R_UNLESS(size > 0, ResultInvalidSize);
R_UNLESS((address < address + size), ResultInvalidCurrentMemory);
// Get the transfer memory.
KScopedAutoObject trmem = GetCurrentProcess(system.Kernel())
.GetHandleTable()
.GetObject<KTransferMemory>(trmem_handle);
R_UNLESS(trmem.IsNotNull(), ResultInvalidHandle);
// Verify that the mapping is in range.
R_UNLESS(GetCurrentProcess(system.Kernel())
.GetPageTable()
.CanContain(address, size, KMemoryState::Transfered),
ResultInvalidMemoryRegion);
// Unmap the transfer memory.
R_TRY(trmem->Unmap(address, size));
R_SUCCEED();
}
Result MapTransferMemory64(Core::System& system, Handle trmem_handle, uint64_t address,