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 This program and the accompanying materials
   7 are licensed and made available under the terms and conditions of the BSD License
   8 which accompanies this distribution.  The full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #include <PiPei.h>
  17
  18 #include <Library/DebugLib.h>
  19 #include <Library/PeimEntryPoint.h>
  20 #include <Library/HobLib.h>
  21 #include <Library/PeiServicesLib.h>
  22 #include <Library/PeiServicesTablePointerLib.h>
  23
  24 #include <Ppi/EmuThunk.h>
  25 #include <Protocol/EmuThunk.h>
  26
  27
  28
  29 EFI_STATUS
  30 EFIAPI
  31 PeiInitialzeThunkPpiToProtocolPei (
  32   IN       EFI_PEI_FILE_HANDLE       FileHandle,
  33   IN CONST EFI_PEI_SERVICES          **PeiServices
  34   )
  35 /*++
  36
  37 Routine Description:
  38
  39   Perform a call-back into the SEC simulator to get Unix Stuff
  40
  41 Arguments:
  42
  43   PeiServices - General purpose services available to every PEIM.
  44
  45 Returns:
  46
  47   None
  48
  49 **/
  50 {
  51   EFI_STATUS              Status;
  52   EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;
  53   EMU_THUNK_PPI           *Thunk;
  54   VOID                    *Ptr;
  55
  56   DEBUG ((EFI_D_ERROR, "Emu Thunk PEIM Loaded\n"));
  57
  58   Status = PeiServicesLocatePpi (
  59               &gEmuThunkPpiGuid,        // GUID
  60               0,                        // INSTANCE
  61               &PpiDescriptor,           // EFI_PEI_PPI_DESCRIPTOR
  62               (VOID **)&Thunk           // PPI
  63               );
  64   ASSERT_EFI_ERROR (Status);
  65
  66   Ptr = Thunk->Thunk ();
  67
  68   BuildGuidDataHob (
  69     &gEmuThunkProtocolGuid,              // Guid
  70     &Ptr,                                // Buffer
  71     sizeof (VOID *)                      // Sizeof Buffer
  72     );
  73   return Status;
  74 }