audk/EmulatorPkg/ThunkPpiToProtocolPei/ThunkPpiToProtocolPei.c

/*++ @file
  UEFI/PI PEIM to abstract construction of firmware volume in a Unix environment.

Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2010 - 2011, Apple Inc. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include <PiPei.h>

#include <Library/DebugLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/HobLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/PeiServicesTablePointerLib.h>

#include <Ppi/EmuThunk.h>
#include <Protocol/EmuThunk.h>



EFI_STATUS
EFIAPI
PeiInitialzeThunkPpiToProtocolPei (
  IN       EFI_PEI_FILE_HANDLE       FileHandle,
  IN CONST EFI_PEI_SERVICES          **PeiServices
  )
/*++

Routine Description:

  Perform a call-back into the SEC simulator to get Unix Stuff

Arguments:

  PeiServices - General purpose services available to every PEIM.

Returns:

  None

**/
{
  EFI_STATUS              Status;
  EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;
  EMU_THUNK_PPI           *Thunk;
  VOID                    *Ptr;

  DEBUG ((EFI_D_ERROR, "Emu Thunk PEIM Loaded\n"));

  Status = PeiServicesLocatePpi (
              &gEmuThunkPpiGuid,        // GUID
              0,                        // INSTANCE
              &PpiDescriptor,           // EFI_PEI_PPI_DESCRIPTOR
              (VOID **)&Thunk           // PPI
              );
  ASSERT_EFI_ERROR (Status);

  Ptr = Thunk->Thunk ();

  BuildGuidDataHob (
    &gEmuThunkProtocolGuid,              // Guid
    &Ptr,                                // Buffer
    sizeof (VOID *)                      // Sizeof Buffer
    );
  return Status;
}