Nt32Pkg/FvbServicesRuntimeDxe/FvbInfo.c

   1 /**@file
   2
   3 Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
   4 This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   FvbInfo.c
  15
  16 Abstract:
  17
  18   Defines data structure that is the volume header found.These data is intent
  19   to decouple FVB driver with FV header.
  20
  21 **/
  22
  23 //
  24 // The package level header files this module uses
  25 //
  26 #include <PiDxe.h>
  27 #include <WinNtDxe.h>
  28 //
  29 // The protocols, PPI and GUID defintions for this module
  30 //
  31 #include <Guid/EventGroup.h>
  32 #include <Guid/FirmwareFileSystem2.h>
  33 #include <Guid/SystemNvDataGuid.h>
  34 #include <Protocol/FirmwareVolumeBlock.h>
  35 #include <Protocol/DevicePath.h>
  36 //
  37 // The Library classes this module consumes
  38 //
  39 #include <Library/UefiLib.h>
  40 #include <Library/UefiDriverEntryPoint.h>
  41 #include <Library/BaseLib.h>
  42 #include <Library/DxeServicesTableLib.h>
  43 #include <Library/UefiRuntimeLib.h>
  44 #include <Library/DebugLib.h>
  45 #include <Library/HobLib.h>
  46 #include <Library/BaseMemoryLib.h>
  47 #include <Library/MemoryAllocationLib.h>
  48 #include <Library/UefiBootServicesTableLib.h>
  49 #include <Library/PcdLib.h>
  50
  51 typedef struct {
  52   UINT64                      FvLength;
  53   EFI_FIRMWARE_VOLUME_HEADER  FvbInfo;
  54   //
  55   // EFI_FV_BLOCK_MAP_ENTRY    ExtraBlockMap[n];//n=0
  56   //
  57   EFI_FV_BLOCK_MAP_ENTRY      End[1];
  58 } EFI_FVB_MEDIA_INFO;
  59
  60 EFI_FVB_MEDIA_INFO  mPlatformFvbMediaInfo[] = {
  61   //
  62   // Recovery BOIS FVB
  63   //
  64   {
  65     FixedPcdGet32 (PcdWinNtFlashFvRecoverySize),
  66     {
  67       {
  68         0,
  69       },  // ZeroVector[16]
  70       EFI_FIRMWARE_FILE_SYSTEM2_GUID,
  71       FixedPcdGet32 (PcdWinNtFlashFvRecoverySize),
  72       EFI_FVH_SIGNATURE,
  73       EFI_FVB2_MEMORY_MAPPED |
  74         EFI_FVB2_READ_ENABLED_CAP |
  75         EFI_FVB2_READ_STATUS |
  76         EFI_FVB2_WRITE_ENABLED_CAP |
  77         EFI_FVB2_WRITE_STATUS |
  78         EFI_FVB2_ERASE_POLARITY |
  79         EFI_FVB2_ALIGNMENT_16,
  80       sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
  81       0xE947,   // CheckSum
  82       0,        // ExtHeaderOffset
  83       {
  84         0,
  85       },  // Reserved[1]
  86       2,  // Revision
  87       {
  88         FixedPcdGet32 (PcdWinNtFlashFvRecoverySize)/FixedPcdGet32 (PcdWinNtFirmwareBlockSize),
  89         FixedPcdGet32 (PcdWinNtFirmwareBlockSize),
  90       }
  91     },
  92     {
  93       0,
  94       0
  95     }
  96   },
  97   //
  98   // Systen NvStorage FVB
  99   //
 100   {
 101     FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
 102     FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
 103     FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +
 104     FixedPcdGet32 (PcdWinNtFlashNvStorageEventLogSize),
 105     {
 106       {
 107         0,
 108       },  // ZeroVector[16]
 109       EFI_SYSTEM_NV_DATA_FV_GUID,
 110       FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
 111       FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
 112       FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +
 113       FixedPcdGet32 (PcdWinNtFlashNvStorageEventLogSize),
 114       EFI_FVH_SIGNATURE,
 115       EFI_FVB2_MEMORY_MAPPED |
 116         EFI_FVB2_READ_ENABLED_CAP |
 117         EFI_FVB2_READ_STATUS |
 118         EFI_FVB2_WRITE_ENABLED_CAP |
 119         EFI_FVB2_WRITE_STATUS |
 120         EFI_FVB2_ERASE_POLARITY |
 121         EFI_FVB2_ALIGNMENT_16,
 122       sizeof (EFI_FIRMWARE_VOLUME_HEADER) + sizeof (EFI_FV_BLOCK_MAP_ENTRY),
 123       0xFBFF,  // CheckSum
 124       0,       // ExtHeaderOffset
 125       {
 126         0,
 127       },  // Reserved[1]
 128       2,  // Revision
 129       {
 130        (FixedPcdGet32 (PcdFlashNvStorageVariableSize) +
 131         FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) +
 132         FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize) +
 133         FixedPcdGet32 (PcdWinNtFlashNvStorageEventLogSize)) / FixedPcdGet32 (PcdWinNtFirmwareBlockSize),
 134         FixedPcdGet32 (PcdWinNtFirmwareBlockSize),
 135       }
 136     },
 137     {
 138       0,
 139       0
 140     }
 141   }
 142 };
 143
 144 EFI_STATUS
 145 GetFvbInfo (
 146   IN  UINT64                        FvLength,
 147   OUT EFI_FIRMWARE_VOLUME_HEADER    **FvbInfo
 148   )
 149 {
 150   UINTN Index;
 151
 152   for (Index = 0; Index < sizeof (mPlatformFvbMediaInfo) / sizeof (EFI_FVB_MEDIA_INFO); Index += 1) {
 153     if (mPlatformFvbMediaInfo[Index].FvLength == FvLength) {
 154       *FvbInfo = &mPlatformFvbMediaInfo[Index].FvbInfo;
 155       return EFI_SUCCESS;
 156     }
 157   }
 158
 159   return EFI_NOT_FOUND;
 160 }