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 ((DEBUG_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;
}