1#ifndef _EFI_PART_H 2#define _EFI_PART_H 3 4/*++ 5 6Copyright (c) 1999 - 2002 Intel Corporation. All rights reserved 7This software and associated documentation (if any) is furnished 8under a license and may only be used or copied in accordance 9with the terms of the license. Except as permitted by such 10license, no part of this software or documentation may be 11reproduced, stored in a retrieval system, or transmitted in any 12form or by any means without the express written consent of 13Intel Corporation. 14 15Module Name: 16 17 efipart.h 18 19Abstract: 20 Info about disk partitions and Master Boot Records 21 22 23 24 25Revision History 26 27--*/ 28 29// 30// 31// 32 33#define EFI_PARTITION 0xef 34#define MBR_SIZE 512 35 36#pragma pack(1) 37 38typedef struct { 39 UINT8 BootIndicator; 40 UINT8 StartHead; 41 UINT8 StartSector; 42 UINT8 StartTrack; 43 UINT8 OSIndicator; 44 UINT8 EndHead; 45 UINT8 EndSector; 46 UINT8 EndTrack; 47 UINT8 StartingLBA[4]; 48 UINT8 SizeInLBA[4]; 49} MBR_PARTITION_RECORD; 50 51#define EXTRACT_UINT32(D) (UINT32)(D[0] | (D[1] << 8) | (D[2] << 16) | (D[3] << 24)) 52 53#define MBR_SIGNATURE 0xaa55 54#define MIN_MBR_DEVICE_SIZE 0x80000 55#define MBR_ERRATA_PAD 0x40000 // 128 MB 56 57#define MAX_MBR_PARTITIONS 4 58typedef struct { 59 UINT8 BootStrapCode[440]; 60 UINT8 UniqueMbrSignature[4]; 61 UINT8 Unknown[2]; 62 MBR_PARTITION_RECORD Partition[MAX_MBR_PARTITIONS]; 63 UINT16 Signature; 64} MASTER_BOOT_RECORD; 65#pragma pack() 66 67 68#endif 69