src/vendorcode/intel/edk2/edk2-stable202005/MdePkg/Include/IndustryStandard/Mbr.h

/** @file
  Legacy Master Boot Record Format Definition.

Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef _MBR_H_
#define _MBR_H_

#define MBR_SIGNATURE               0xaa55

#define EXTENDED_DOS_PARTITION      0x05
#define EXTENDED_WINDOWS_PARTITION  0x0F

#define MAX_MBR_PARTITIONS          4

#define PMBR_GPT_PARTITION          0xEE
#define EFI_PARTITION               0xEF

#define MBR_SIZE                    512

#pragma pack(1)
///
/// MBR Partition Entry
///
typedef struct {
  UINT8 BootIndicator;
  UINT8 StartHead;
  UINT8 StartSector;
  UINT8 StartTrack;
  UINT8 OSIndicator;
  UINT8 EndHead;
  UINT8 EndSector;
  UINT8 EndTrack;
  UINT8 StartingLBA[4];
  UINT8 SizeInLBA[4];
} MBR_PARTITION_RECORD;

///
/// MBR Partition Table
///
typedef struct {
  UINT8                 BootStrapCode[440];
  UINT8                 UniqueMbrSignature[4];
  UINT8                 Unknown[2];
  MBR_PARTITION_RECORD  Partition[MAX_MBR_PARTITIONS];
  UINT16                Signature;
} MASTER_BOOT_RECORD;

#pragma pack()

#endif