UnixPkg/Library/SecDispatchTableLib/SecDispatchTableLib.c

   1 /** @file
   2   Allows an override of the SEC SEC PPI Dispatch Table. This allows
   3   customized PPIs to be passed into the PEI Core.
   4
   5 Copyright (c) 2008 - 2010, Apple Inc. All rights reserved.<BR>
   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 #include <Library/BaseMemoryLib.h>
  18 #include <Library/SecDispatchTableLib.h>
  19
  20
  21 /**
  22   Return the number of bytes that OverrideDispatchTable() will append to
  23   the dispatch table.
  24
  25   @return  Size of table in bytes OverrideDispatchTable() will return
  26
  27 **/
  28 UINTN
  29 EFIAPI
  30 OverrideDispatchTableExtraSize (
  31   )
  32 {
  33   return 0;
  34 }
  35
  36
  37 /**
  38   Allow an override of the Sec PPI Dispatch Table. This table contains PPIs passed
  39   up from SEC to PEI.
  40
  41   @param  OriginalTable         SECs default PPI dispatch table
  42   @param  OriginalTableSize     Size of SECs default PPI dispatch table
  43   @param  NewTable              New dispatch table
  44   @param  NewTableSize          Size of of the NewTable in bytes
  45
  46   @return EFI_SUCCESS table was copied
  47
  48 **/
  49 EFI_STATUS
  50 EFIAPI
  51 OverrideDispatchTable (
  52   IN CONST EFI_PEI_PPI_DESCRIPTOR          *OriginalTable,
  53   IN       UINTN                           OriginalTableSize,
  54   IN OUT   EFI_PEI_PPI_DESCRIPTOR          *NewTable,
  55   IN       UINTN                           NewTableSize
  56   )
  57 {
  58   CopyMem (NewTable, OriginalTable, OriginalTableSize);
  59
  60   return EFI_SUCCESS;
  61 }