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svc: Implement svcCreateTransferMemory

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Seems to be used and created identically to SharedMemory, so just reuse that.
This commit is contained in:
Zach Hilman 2018-11-09 17:02:50 -05:00
parent a819116154
commit 7901de2b75
1 changed files with 33 additions and 3 deletions
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36
src/core/hle/kernel/svc.cpp
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@ -1194,9 +1194,39 @@ static ResultCode ResetSignal(Handle handle) {
/// Creates a TransferMemory object
static ResultCode CreateTransferMemory(Handle* handle, VAddr addr, u64 size, u32 permissions) {
LOG_WARNING(Kernel_SVC, "(STUBBED) called addr=0x{:X}, size=0x{:X}, perms=0x{:08X}", addr, size,
permissions);
*handle = 0;
LOG_DEBUG(Kernel_SVC, "called addr=0x{:X}, size=0x{:X}, perms=0x{:08X}", addr, size,
permissions);
if (!Common::Is4KBAligned(addr)) {
LOG_ERROR(Kernel_SVC, "Address ({:016X}) is not page aligned!", addr);
return ERR_INVALID_ADDRESS;
}
if (!Common::Is4KBAligned(size) || size == 0) {
LOG_ERROR(Kernel_SVC, "Size ({:016X}) is not page aligned or equal to zero!", size);
return ERR_INVALID_ADDRESS;
}
if (addr + size <= addr) {
LOG_ERROR(Kernel_SVC, "Address and size cause overflow! (address={:016X}, size={:016X})",
addr, size);
return ERR_INVALID_ADDRESS_STATE;
}
if (permissions > static_cast<u32>(MemoryPermission::ReadWrite) ||
permissions == static_cast<u32>(MemoryPermission::Write)) {
LOG_ERROR(Kernel_SVC, "Invalid memory permissions for transfer memory! (perms={:08X})",
permissions);
return ERR_INVALID_MEMORY_PERMISSIONS;
}
auto& kernel = Core::System::GetInstance().Kernel();
auto& handle_table = Core::CurrentProcess()->GetHandleTable();
const auto perms = static_cast<MemoryPermission>(permissions);
const auto shared_mem_handle = SharedMemory::Create(
kernel, handle_table.Get<Process>(CurrentProcess), size, perms, perms, addr);
CASCADE_RESULT(*handle, handle_table.Create(shared_mem_handle));
return RESULT_SUCCESS;
}