EdkNt32Pkg/Pei/WinNtStuff/winntstuff.c

   1 /*++
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14     WinNtStuff.c
  15
  16 Abstract:
  17
  18     Tiano PEIM to abstract construction of firmware volume in a Windows NT environment.
  19
  20 Revision History
  21
  22 --*/
  23
  24
  25
  26 EFI_STATUS
  27 EFIAPI
  28 PeimInitializeWinNtStuff (
  29   IN EFI_FFS_FILE_HEADER       *FfsHeader,
  30   IN EFI_PEI_SERVICES          **PeiServices
  31   )
  32 /*++
  33
  34 Routine Description:
  35
  36   Perform a call-back into the SEC simulator to get NT Stuff
  37
  38 Arguments:
  39
  40   PeiServices - General purpose services available to every PEIM.
  41
  42 Returns:
  43
  44   None
  45
  46 --*/
  47 // TODO:    FfsHeader - add argument and description to function comment
  48 {
  49   EFI_STATUS              Status;
  50   EFI_PEI_PPI_DESCRIPTOR  *PpiDescriptor;
  51   PEI_NT_THUNK_PPI        *PeiNtService;
  52   VOID                    *Ptr;
  53
  54   DEBUG ((EFI_D_ERROR, "NT 32 WinNT Stuff PEIM Loaded\n"));
  55
  56   Status = (**PeiServices).LocatePpi (
  57                             PeiServices,
  58                             &gPeiNtThunkPpiGuid,  // GUID
  59                             0,                    // INSTANCE
  60                             &PpiDescriptor,       // EFI_PEI_PPI_DESCRIPTOR
  61                             &PeiNtService         // PPI
  62                             );
  63   ASSERT_EFI_ERROR (Status);
  64
  65   Ptr = PeiNtService->NtThunk ();
  66
  67   BuildGuidDataHob (
  68     &gEfiWinNtThunkProtocolGuid,         // Guid
  69     &Ptr,                                // Buffer
  70     sizeof (VOID *)                      // Sizeof Buffer
  71     );
  72   return Status;
  73 }