Vlv2TbltDevicePkg/PlatformInitPei/FlashMap.c

   1 /** @file
   2
   3   Copyright (c) 2004  - 2014, Intel Corporation. All rights reserved.<BR>
   4
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7
   8
   9
  10
  11 Module Name:
  12
  13   FlashMap.c
  14
  15 Abstract:
  16
  17   Build GUIDed HOBs for platform specific flash map.
  18
  19 --*/
  20
  21 #include "Efi.h"
  22 #include "Pei.h"
  23 #include "PeiLib.h"
  24 #include "PeiLib.h"
  25 #include "EfiFlashMap.h"
  26 #include EFI_PROTOCOL_CONSUMER (FirmwareVolumeBlock)
  27 #include EFI_GUID_DEFINITION (FlashMapHob)
  28 #include EFI_GUID_DEFINITION (SystemNvDataGuid)
  29 #include EFI_GUID_DEFINITION (FirmwareFileSystem)
  30
  31 EFI_GUID                            mFvBlockGuid      = EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL_GUID;
  32 EFI_GUID                            mFfsGuid          = EFI_FIRMWARE_FILE_SYSTEM_GUID;
  33 EFI_GUID                            mSystemDataGuid   = EFI_SYSTEM_NV_DATA_HOB_GUID;
  34
  35 static EFI_FLASH_AREA_DATA          mFlashAreaData[]  = {
  36         //
  37   // Variable area
  38   //
  39   { FixedPcdGet32 (PcdFlashNvStorageVariableBase),
  40     FixedPcdGet32 (PcdFlashNvStorageVariableSize),
  41     EFI_FLASH_AREA_SUBFV | EFI_FLASH_AREA_MEMMAPPED_FV,
  42     EFI_FLASH_AREA_EFI_VARIABLES },
  43
  44   //
  45   // Boot block 2nd part
  46   //
  47   { FixedPcdGet32 (PcdFlashFvRecovery2Base),
  48     FixedPcdGet32 (PcdFlashFvRecovery2Size),
  49     EFI_FLASH_AREA_SUBFV | EFI_FLASH_AREA_MEMMAPPED_FV,
  50     EFI_FLASH_AREA_FTW_BACKUP },
  51
  52   //
  53   // Recovery FV
  54   //
  55   { FixedPcdGet32 (PcdFlashFvRecoveryBase),
  56     FixedPcdGet32 (PcdFlashFvRecoverySize),
  57     EFI_FLASH_AREA_FV | EFI_FLASH_AREA_MEMMAPPED_FV,
  58     EFI_FLASH_AREA_RECOVERY_BIOS },
  59
  60   //
  61   // Main FV
  62   //
  63   { FixedPcdGet32 (PcdFlashFvMainBase),
  64     FixedPcdGet32 (PcdFlashFvMainSize),
  65     EFI_FLASH_AREA_FV | EFI_FLASH_AREA_MEMMAPPED_FV,
  66     EFI_FLASH_AREA_MAIN_BIOS }
  67
  68 };
  69
  70 #define NUM_FLASH_AREA_DATA (ARRAY_SIZE (mFlashAreaData))
  71
  72 /**
  73   Build GUID HOBs for platform specific flash map.
  74
  75   @param FfsHeader     Pointer this FFS file header.
  76   @param PeiServices   General purpose services available to every PEIM.
  77
  78   @retval EFI_SUCCESS   Guid HOBs for platform flash map is built.
  79   @retval Otherwise     Failed to build the Guid HOB data.
  80
  81 **/
  82 EFI_STATUS
  83 PeimInitializeFlashMap (
  84   IN EFI_FFS_FILE_HEADER       *FfsHeader,
  85   IN EFI_PEI_SERVICES          **PeiServices
  86   )
  87 {
  88   UINTN                         Index;
  89   EFI_FLASH_AREA_HOB_DATA       FlashHobData;
  90
  91   //
  92   // Build flash area entries as GUIDed HOBs.
  93   //
  94   for (Index = 0; Index < NUM_FLASH_AREA_DATA; Index++) {
  95     ZeroMem(&FlashHobData, sizeof (EFI_FLASH_AREA_HOB_DATA));
  96
  97     FlashHobData.AreaType               = mFlashAreaData[Index].AreaType;
  98     FlashHobData.NumberOfEntries        = 1;
  99     FlashHobData.SubAreaData.Attributes = mFlashAreaData[Index].Attributes;
 100     FlashHobData.SubAreaData.Base       = (EFI_PHYSICAL_ADDRESS) (UINTN) mFlashAreaData[Index].Base;
 101     FlashHobData.SubAreaData.Length     = (EFI_PHYSICAL_ADDRESS) (UINTN) mFlashAreaData[Index].Length;
 102
 103     switch (FlashHobData.AreaType) {
 104     case EFI_FLASH_AREA_RECOVERY_BIOS:
 105     case EFI_FLASH_AREA_MAIN_BIOS:
 106       CopyMem (
 107         &FlashHobData.AreaTypeGuid,
 108         &mFfsGuid,
 109         sizeof (EFI_GUID)
 110         );
 111       CopyMem (
 112         &FlashHobData.SubAreaData.FileSystem,
 113         &mFvBlockGuid,
 114         sizeof (EFI_GUID)
 115         );
 116       break;
 117
 118     case EFI_FLASH_AREA_GUID_DEFINED:
 119       CopyMem (
 120         &FlashHobData.AreaTypeGuid,
 121         &mSystemDataGuid,
 122         sizeof (EFI_GUID)
 123         );
 124       CopyMem (
 125         &FlashHobData.SubAreaData.FileSystem,
 126         &mFvBlockGuid,
 127         sizeof (EFI_GUID)
 128         );
 129       break;
 130
 131     default:
 132       break;
 133     }
 134
 135     PeiBuildHobGuidData(PeiServices,
 136                         &gEfiFlashMapHobGuid,
 137                         &FlashHobData,
 138                         sizeof (EFI_FLASH_AREA_HOB_DATA)
 139                         );
 140   }
 141   return EFI_SUCCESS;
 142 }
 143