MdePkg/Library/PeimEntryPoint/PeimEntryPoint.c

   1
   2 /** @file
   3   Entry point to a PEIM.
   4
   5 Copyright (c) 2006, Intel Corporation<BR>
   6 All rights reserved. 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
  17 #include <PiPei.h>
  18
  19
  20 #include <Library/PeimEntryPoint.h>
  21 #include <Library/DebugLib.h>
  22
  23 /**
  24   Image entry point of Peim.
  25
  26   @param  FfsHeader   Pointer to FFS header the loaded driver.
  27   @param  PeiServices Pointer to the PEI services.
  28
  29   @return  Status returned by entry points of Peims.
  30
  31 **/
  32 EFI_STATUS
  33 EFIAPI
  34 _ModuleEntryPoint (
  35   IN EFI_FFS_FILE_HEADER       *FfsHeader,
  36   IN EFI_PEI_SERVICES          **PeiServices
  37   )
  38 {
  39   if (_gPeimRevision != 0) {
  40     //
  41     // Make sure that the PEI spec revision of the platform is >= PEI spec revision of the driver
  42     //
  43     ASSERT ((*PeiServices)->Hdr.Revision >= _gPeimRevision);
  44   }
  45
  46   //
  47   // Call constructor for all libraries
  48   //
  49   ProcessLibraryConstructorList (FfsHeader, PeiServices);
  50
  51   //
  52   // Call the driver entry point
  53   //
  54   return ProcessModuleEntryPointList (FfsHeader, PeiServices);
  55 }
  56
  57
  58 /**
  59   Wrapper of Peim image entry point.
  60
  61   @param  FfsHeader   Pointer to FFS header the loaded driver.
  62   @param  PeiServices Pointer to the PEI services.
  63
  64   @return  Status returned by entry points of Peims.
  65
  66 **/
  67 EFI_STATUS
  68 EFIAPI
  69 EfiMain (
  70   IN EFI_FFS_FILE_HEADER  *FfsHeader,
  71   IN EFI_PEI_SERVICES     **PeiServices
  72   )
  73 {
  74   return _ModuleEntryPoint (FfsHeader, PeiServices);
  75 }