1 files changed, 86 insertions, 0 deletions
diff --git a/MdeModulePkg/Include/Guid/FlashMapHob.h b/MdeModulePkg/Include/Guid/FlashMapHob.h
index a9e9b6736f..416a8c6df0 100644
--- a/MdeModulePkg/Include/Guid/FlashMapHob.h
+++ b/MdeModulePkg/Include/Guid/FlashMapHob.h
@@ -28,6 +28,92 @@ Abstract:
 #define EFI_FLASH_MAP_HOB_GUID \
   { 0xb091e7d2, 0x5a0, 0x4198, {0x94, 0xf0, 0x74, 0xb7, 0xb8, 0xc5, 0x54, 0x59 } }
 
+
+//
+// Definition for flash map GUIDed HOBs
+//
+typedef UINT32  EFI_FLASH_AREA_ATTRIBUTES;
+
+#define EFI_FLASH_AREA_FV           0x0001
+#define EFI_FLASH_AREA_SUBFV        0x0002
+#define EFI_FLASH_AREA_MEMMAPPED_FV 0x0004
+#define EFI_FLASH_AREA_REQUIRED     0x0008
+#define EFI_FLASH_AREA_CORRUPT      0x0010
+
+typedef UINT8   EFI_FLASH_AREA_TYPE;
+
+#define EFI_FLASH_AREA_RECOVERY_BIOS  0x0   // Recovery code
+#define EFI_FLASH_AREA_MAIN_BIOS      0x1   // Regular BIOS code
+#define EFI_FLASH_AREA_PAL_B          0x2   // PAL-B
+#define EFI_FLASH_AREA_RESERVED_03    0x3   // Reserved for backwards compatibility
+#define EFI_FLASH_AREA_RESERVED_04    0x4   // Reserved for backwards compatibility
+#define EFI_FLASH_AREA_DMI_FRU        0x5   // DMI FRU information
+#define EFI_FLASH_AREA_OEM_BINARY     0x6   // OEM Binary Code/data
+#define EFI_FLASH_AREA_RESERVED_07    0x7   // Reserved for backwards compatibility
+#define EFI_FLASH_AREA_RESERVED_08    0x8   // Reserved for backwards compatibility
+#define EFI_FLASH_AREA_RESERVED_09    0x9   // Reserved for backwards compatibility
+#define EFI_FLASH_AREA_RESERVED_0A    0x0a  // Reserved for backwards compatibility
+#define EFI_FLASH_AREA_EFI_VARIABLES  0x0b  // EFI variables
+#define EFI_FLASH_AREA_MCA_LOG        0x0c  // MCA error log
+#define EFI_FLASH_AREA_SMBIOS_LOG     0x0d  // SMBIOS error log
+#define EFI_FLASH_AREA_FTW_BACKUP     0x0e  // A backup block during FTW operations
+#define EFI_FLASH_AREA_FTW_STATE      0x0f  // State information during FTW operations
+#define EFI_FLASH_AREA_UNUSED         0x0fd // Not used
+#define EFI_FLASH_AREA_GUID_DEFINED   0x0fe // Usage defined by a GUID
+#pragma pack(1)
+//
+// An individual sub-area Entry.
+// A single flash area may consist of  more than one sub-area.
+//
+typedef struct {
+  EFI_FLASH_AREA_ATTRIBUTES Attributes;
+  UINT32                    Reserved;
+  EFI_PHYSICAL_ADDRESS      Base;
+  EFI_PHYSICAL_ADDRESS      Length;
+  EFI_GUID                  FileSystem;
+} EFI_FLASH_SUBAREA_ENTRY;
+
+typedef struct {
+  UINT8                   Reserved[3];
+  EFI_FLASH_AREA_TYPE     AreaType;
+  EFI_GUID                AreaTypeGuid;
+  UINT32                  NumEntries;
+  EFI_FLASH_SUBAREA_ENTRY Entries[1];
+} EFI_FLASH_MAP_ENTRY_DATA;
+
+typedef struct {
+  EFI_HOB_GENERIC_HEADER  Header;
+  EFI_GUID                Name;
+  UINT8                   Reserved[3];
+  EFI_FLASH_AREA_TYPE     AreaType;
+  EFI_GUID                AreaTypeGuid;
+  UINT32                  NumEntries;
+  EFI_FLASH_SUBAREA_ENTRY Entries[1];
+} EFI_HOB_FLASH_MAP_ENTRY_TYPE;
+
+//
+// Internal definitions
+//
+typedef struct {
+  UINT8                   Reserved[3];
+  EFI_FLASH_AREA_TYPE     AreaType;
+  EFI_GUID                AreaTypeGuid;
+  UINT32                  NumberOfEntries;
+  EFI_FLASH_SUBAREA_ENTRY SubAreaData;
+} EFI_FLASH_AREA_HOB_DATA;
+
+typedef struct {
+  UINTN                     Base;
+  UINTN                     Length;
+  EFI_FLASH_AREA_ATTRIBUTES Attributes;
+  EFI_FLASH_AREA_TYPE       AreaType;
+  UINT8                     Reserved[3];
+  EFI_GUID                  AreaTypeGuid;
+} EFI_FLASH_AREA_DATA;
+
+#pragma pack()
+
+
 extern EFI_GUID gEfiFlashMapHobGuid;
 
 #endif // _FLASH_MAP_HOB_GUID_H_