EfiFlashMap.h

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#ifndef _EFI_FLASHMAP_H_
#define _EFI_FLASHMAP_H_
 
//
// 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                     NumberOfEntries;
  EFI_FLASH_SUBAREA_ENTRY    Entries[1];
  //
  // Extended Hob data.
  //
  // VolumeId and FilePath indicating a unique file.
  //
  UINT32                     VolumeId;
  CHAR16                     FilePath[258];
  UINT32                     ActuralSize;
  UINT32                     Offset;
} EFI_FLASH_MAP_FS_ENTRY_DATA;
 
#pragma pack()
 
#endif // #ifndef _EFI_FLASHMAP_H_