| Vishal Bhoj | 82c8071 | 2015-12-15 21:13:33 +0530 | [diff] [blame] | 1 | /** @file
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| 2 | Legacy Master Boot Record Format Definition.
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| 3 |
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| 4 | Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
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| 5 | This program and the accompanying materials
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| 6 | are licensed and made available under the terms and conditions of the BSD License
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| 7 | which accompanies this distribution. The full text of the license may be found at
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| 8 | http://opensource.org/licenses/bsd-license.php
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| 9 |
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| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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| 12 |
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| 13 | **/
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| 14 |
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| 15 | #ifndef _MBR_H_
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| 16 | #define _MBR_H_
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| 17 |
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| 18 | #define MBR_SIGNATURE 0xaa55
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| 19 |
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| 20 | #define EXTENDED_DOS_PARTITION 0x05
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| 21 | #define EXTENDED_WINDOWS_PARTITION 0x0F
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| 22 |
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| 23 | #define MAX_MBR_PARTITIONS 4
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| 24 |
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| 25 | #define PMBR_GPT_PARTITION 0xEE
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| 26 | #define EFI_PARTITION 0xEF
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| 27 |
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| 28 | #define MBR_SIZE 512
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| 29 |
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| 30 | #pragma pack(1)
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| 31 | ///
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| 32 | /// MBR Partition Entry
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| 33 | ///
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| 34 | typedef struct {
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| 35 | UINT8 BootIndicator;
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| 36 | UINT8 StartHead;
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| 37 | UINT8 StartSector;
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| 38 | UINT8 StartTrack;
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| 39 | UINT8 OSIndicator;
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| 40 | UINT8 EndHead;
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| 41 | UINT8 EndSector;
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| 42 | UINT8 EndTrack;
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| 43 | UINT8 StartingLBA[4];
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| 44 | UINT8 SizeInLBA[4];
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| 45 | } MBR_PARTITION_RECORD;
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| 46 |
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| 47 | ///
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| 48 | /// MBR Partition Table
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| 49 | ///
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| 50 | typedef struct {
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| 51 | UINT8 BootStrapCode[440];
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| 52 | UINT8 UniqueMbrSignature[4];
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| 53 | UINT8 Unknown[2];
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| 54 | MBR_PARTITION_RECORD Partition[MAX_MBR_PARTITIONS];
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| 55 | UINT16 Signature;
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| 56 | } MASTER_BOOT_RECORD;
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| 57 |
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| 58 | #pragma pack()
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| 59 |
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| 60 | #endif
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