EmulatorPkg/ThunkPpiToProtocolPei/ThunkPpiToProtocolPei.c

   1 /*++ @file
   2   UEFI/PI PEIM to abstract construction of firmware volume in a Unix environment.
   3
   4 Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
   5 Portions copyright (c) 2010 - 2011, Apple Inc. All rights reserved.
   6 SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <PiPei.h>
  11
  12 #include <Library/DebugLib.h>
  13 #include <Library/PeimEntryPoint.h>
  14 #include <Library/HobLib.h>
  15 #include <Library/PeiServicesLib.h>
  16 #include <Library/PeiServicesTablePointerLib.h>
  17
  18 #include <Ppi/EmuThunk.h>
  19 #include <Protocol/EmuThunk.h>
  20
  21 EFI_STATUS
  22 EFIAPI
  23 PeiInitialzeThunkPpiToProtocolPei (
  24   IN       EFI_PEI_FILE_HANDLE  FileHandle,
  25   IN CONST EFI_PEI_SERVICES     **PeiServices
  26   )
  27
  28 /*++
  29
  30 Routine Description:
  31
  32   Perform a call-back into the SEC simulator to get Unix Stuff
  33
  34 Arguments:
  35
  36   PeiServices - General purpose services available to every PEIM.
  37
  38 Returns:
  39
  40   None
  41
  42 **/
  43 {
  44   EFI_STATUS              Status;
  45   EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;
  46   EMU_THUNK_PPI           *Thunk;
  47   VOID                    *Ptr;
  48
  49   DEBUG ((DEBUG_ERROR, "Emu Thunk PEIM Loaded\n"));
  50
  51   Status = PeiServicesLocatePpi (
  52              &gEmuThunkPpiGuid,         // GUID
  53              0,                         // INSTANCE
  54              &PpiDescriptor,            // EFI_PEI_PPI_DESCRIPTOR
  55              (VOID **)&Thunk            // PPI
  56              );
  57   ASSERT_EFI_ERROR (Status);
  58
  59   Ptr = Thunk->Thunk ();
  60
  61   BuildGuidDataHob (
  62     &gEmuThunkProtocolGuid,              // Guid
  63     &Ptr,                                // Buffer
  64     sizeof (VOID *)                      // Sizeof Buffer
  65     );
  66   return Status;
  67 }