Vlv2TbltDevicePkg/Library/MultiPlatformLib/PlatformInfoHob.c

   1 /** @file
   2   Platform Hob access interface for multiplatform.
   3
   4   Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
   5
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8
   9
  10 **/
  11
  12 #include <MultiPlatformLib.h>
  13
  14 /**
  15   Returns the Platform Info of the platform from the HOB.
  16
  17   @param PeiServices         General purpose services available to every PEIM.
  18   @param PlatformInfoHob     Pointer to the PLATFORM_INFO_HOB Pointer
  19
  20   @retval EFI_SUCCESS        The function completed successfully.
  21   @retval EFI_NOT_FOUND      PlatformInfoHob data doesn't exist, use default instead.
  22
  23 **/
  24 EFI_STATUS
  25 GetPlatformInfoHob (
  26   IN CONST EFI_PEI_SERVICES           **PeiServices,
  27   OUT EFI_PLATFORM_INFO_HOB     **PlatformInfoHob
  28   )
  29 {
  30   EFI_PEI_HOB_POINTERS        GuidHob;
  31
  32   //
  33   // Find the PlatformInfo HOB
  34   //
  35   GuidHob.Raw = GetHobList ();
  36   if (GuidHob.Raw == NULL) {
  37     return EFI_NOT_FOUND;
  38   }
  39
  40   if ((GuidHob.Raw = GetNextGuidHob (&gEfiPlatformInfoGuid, GuidHob.Raw)) != NULL) {
  41     *PlatformInfoHob = GET_GUID_HOB_DATA (GuidHob.Guid);
  42   }
  43
  44   //
  45   // PlatformInfo PEIM should provide this HOB data, if not ASSERT and return error.
  46   //
  47   ASSERT (*PlatformInfoHob != NULL);
  48   if (!(*PlatformInfoHob)) {
  49     return EFI_NOT_FOUND;
  50   }
  51
  52   return EFI_SUCCESS;
  53 }
  54