1#ifndef _EFI_PART_H 2#define _EFI_PART_H 3 4/*++ 5 6Copyright (c) 1998 Intel Corporation 7 8Module Name: 9 10 efipart.h 11 12Abstract: 13 Info about disk partitions and Master Boot Records 14 15 16 17 18Revision History 19 20--*/ 21 22// 23// 24// 25 26#define EFI_PARTITION 0xef 27#define MBR_SIZE 512 28 29#pragma pack(1) 30 31typedef struct { 32 UINT8 BootIndicator; 33 UINT8 StartHead; 34 UINT8 StartSector; 35 UINT8 StartTrack; 36 UINT8 OSIndicator; 37 UINT8 EndHead; 38 UINT8 EndSector; 39 UINT8 EndTrack; 40 UINT8 StartingLBA[4]; 41 UINT8 SizeInLBA[4]; 42} MBR_PARTITION_RECORD; 43 44#define EXTRACT_UINT32(D) (UINT32)(D[0] | (D[1] << 8) | (D[2] << 16) | (D[3] << 24)) 45 46#define MBR_SIGNATURE 0xaa55 47#define MIN_MBR_DEVICE_SIZE 0x80000 48#define MBR_ERRATA_PAD 0x40000 // 128 MB 49 50#define MAX_MBR_PARTITIONS 4 51typedef struct { 52 UINT8 BootStrapCode[440]; 53 UINT8 UniqueMbrSignature[4]; 54 UINT8 Unknown[2]; 55 MBR_PARTITION_RECORD Partition[MAX_MBR_PARTITIONS]; 56 UINT16 Signature; 57} MASTER_BOOT_RECORD; 58#pragma pack() 59 60 61#endif 62