EmulatorPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / EmulatorPkg / ResetRuntimeDxe / Reset.c

/*++ @file\r
  Reset Architectural Protocol as defined in UEFI/PI under Emulation\r
\r
Copyright (c) 2004 - 2009, Intel Corporation. All rights reserved.<BR>\r
Portions copyright (c) 2010 - 2011, Apple Inc. All rights reserved.\r
SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include <PiDxe.h>\r
\r
#include <Library/BaseLib.h>\r
#include <Library/DebugLib.h>\r
#include <Library/UefiLib.h>\r
#include <Library/UefiDriverEntryPoint.h>\r
#include <Library/MemoryAllocationLib.h>\r
#include <Library/UefiBootServicesTableLib.h>\r
#include <Library/EmuThunkLib.h>\r
\r
#include <Protocol/Reset.h>\r
\r
\r
VOID\r
EFIAPI\r
EmuResetSystem (\r
  IN EFI_RESET_TYPE   ResetType,\r
  IN EFI_STATUS       ResetStatus,\r
  IN UINTN            DataSize,\r
  IN VOID             *ResetData OPTIONAL\r
  )\r
{\r
  EFI_STATUS  Status;\r
  UINTN       HandleCount;\r
  EFI_HANDLE  *HandleBuffer;\r
  UINTN       Index;\r
\r
  //\r
  // Disconnect all\r
  //\r
  Status = gBS->LocateHandleBuffer (\r
                  AllHandles,\r
                  NULL,\r
                  NULL,\r
                  &HandleCount,\r
                  &HandleBuffer\r
                  );\r
  if (!EFI_ERROR (Status)) {\r
    for (Index = 0; Index < HandleCount; Index++) {\r
      Status = gBS->DisconnectController (HandleBuffer[Index], NULL, NULL);\r
    }\r
\r
    gBS->FreePool (HandleBuffer);\r
  }\r
\r
\r
  //\r
  // Discard ResetType, always return 0 as exit code\r
  //\r
  gEmuThunk->Exit (0);\r
\r
  //\r
  // Should never go here\r
  //\r
  ASSERT (FALSE);\r
\r
  return;\r
}\r
\r
\r
\r
EFI_STATUS\r
EFIAPI\r
InitializeEmuReset (\r
  IN EFI_HANDLE        ImageHandle,\r
  IN EFI_SYSTEM_TABLE  *SystemTable\r
  )\r
/*++\r
\r
Routine Description:\r
\r
\r
Arguments:\r
\r
  ImageHandle of the loaded driver\r
  Pointer to the System Table\r
\r
Returns:\r
\r
  Status\r
**/\r
{\r
  EFI_STATUS  Status;\r
  EFI_HANDLE  Handle;\r
\r
  SystemTable->RuntimeServices->ResetSystem = EmuResetSystem;\r
\r
  Handle = NULL;\r
  Status = gBS->InstallMultipleProtocolInterfaces (\r
                  &Handle,\r
                  &gEfiResetArchProtocolGuid,\r
                  NULL,\r
                  NULL\r
                  );\r
  ASSERT_EFI_ERROR (Status);\r
\r
  return Status;\r
}\r
\r