UefiCpuPkg/Library/PlatformSecLibNull/PlatformSecLibNull.c

   1 /** @file
   2 Null instance of Platform Sec Lib.
   3
   4 Copyright (c) 2013 - 2015, Intel Corporation. All rights reserved.<BR>
   5 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 #include <PiPei.h>
  16
  17 #include <Ppi/SecPlatformInformation.h>
  18
  19 /**
  20   A developer supplied function to perform platform specific operations.
  21
  22   It's a developer supplied function to perform any operations appropriate to a
  23   given platform. It's invoked just before passing control to PEI core by SEC
  24   core. Platform developer may modify the SecCoreData passed to PEI Core.
  25   It returns a platform specific PPI list that platform wishes to pass to PEI core.
  26   The Generic SEC core module will merge this list to join the final list passed to
  27   PEI core.
  28
  29   @param  SecCoreData           The same parameter as passing to PEI core. It
  30                                 could be overridden by this function.
  31
  32   @return The platform specific PPI list to be passed to PEI core or
  33           NULL if there is no need of such platform specific PPI list.
  34
  35 **/
  36 EFI_PEI_PPI_DESCRIPTOR *
  37 EFIAPI
  38 SecPlatformMain (
  39   IN OUT   EFI_SEC_PEI_HAND_OFF        *SecCoreData
  40   )
  41 {
  42   return NULL;
  43 }
  44
  45 /**
  46   This interface conveys state information out of the Security (SEC) phase into PEI.
  47
  48   @param  PeiServices               Pointer to the PEI Services Table.
  49   @param  StructureSize             Pointer to the variable describing size of the input buffer.
  50   @param  PlatformInformationRecord Pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD.
  51
  52   @retval EFI_SUCCESS           The data was successfully returned.
  53   @retval EFI_BUFFER_TOO_SMALL  The buffer was too small.
  54
  55 **/
  56 EFI_STATUS
  57 EFIAPI
  58 SecPlatformInformation (
  59   IN CONST EFI_PEI_SERVICES                     **PeiServices,
  60   IN OUT   UINT64                               *StructureSize,
  61      OUT   EFI_SEC_PLATFORM_INFORMATION_RECORD  *PlatformInformationRecord
  62   )
  63 {
  64   return EFI_SUCCESS;
  65 }
  66
  67 /**
  68   This interface disables temporary memory in SEC Phase.
  69 **/
  70 VOID
  71 EFIAPI
  72 SecPlatformDisableTemporaryMemory (
  73   VOID
  74   )
  75 {
  76 }
  77
  78 /**
  79   This function provides dummy function so that SecCore can pass build
  80   validation. All real platform library instances need to implement the real
  81   entry point in assembly.
  82 **/
  83 VOID
  84 EFIAPI
  85 _ModuleEntryPoint (
  86   VOID
  87   )
  88 {
  89   return;
  90 }