diff options
| -rw-r--r-- | src/core/hle/kernel/svc.cpp | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/src/core/hle/kernel/svc.cpp b/src/core/hle/kernel/svc.cpp index 2e7c9d094..20af65ee7 100644 --- a/src/core/hle/kernel/svc.cpp +++ b/src/core/hle/kernel/svc.cpp @@ -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; } |