MdePkg/Library/PeimEntryPoint/PeimEntryPoint.c

   1 /** @file
   2   Entry point to a PEIM.
   3
   4 Copyright (c) 2006, Intel Corporation<BR>
   5 All rights reserved. This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15
  16 #include <PiPei.h>
  17
  18
  19 #include <Library/PeimEntryPoint.h>
  20 #include <Library/DebugLib.h>
  21
  22 /**
  23   Image entry point of Peim.
  24
  25   @param  FfsHeader   Pointer to FFS header the loaded driver.
  26   @param  PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
  27
  28   @return  Status returned by entry points of Peims.
  29
  30 **/
  31 EFI_STATUS
  32 EFIAPI
  33 _ModuleEntryPoint (
  34   IN EFI_PEI_FILE_HANDLE       FileHandle,
  35   IN CONST EFI_PEI_SERVICES    **PeiServices
  36   )
  37 {
  38   if (_gPeimRevision != 0) {
  39     //
  40     // Make sure that the PEI spec revision of the platform is >= PEI spec revision of the driver
  41     //
  42     ASSERT ((*PeiServices)->Hdr.Revision >= _gPeimRevision);
  43   }
  44
  45   //
  46   // Call constructor for all libraries
  47   //
  48   ProcessLibraryConstructorList (FileHandle, PeiServices);
  49
  50   //
  51   // Call the driver entry point
  52   //
  53   return ProcessModuleEntryPointList (FileHandle, PeiServices);
  54 }
  55
  56
  57 /**
  58   Wrapper of Peim image entry point.
  59
  60   @param  FfsHeader   Pointer to FFS header the loaded driver.
  61   @param  PeiServices An indirect pointer to the EFI_PEI_SERVICES table published by the PEI Foundation
  62
  63   @return  Status returned by entry points of Peims.
  64
  65 **/
  66 EFI_STATUS
  67 EFIAPI
  68 EfiMain (
  69   IN EFI_PEI_FILE_HANDLE      FileHandle,
  70   IN CONST EFI_PEI_SERVICES   **PeiServices
  71   )
  72 {
  73   return _ModuleEntryPoint (FileHandle, PeiServices);
  74 }