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2726 | vana | 1 | #ifndef _EFI_PART_H |
2 | #define _EFI_PART_H |
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3 | |||
4 | /*++ |
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5 | |||
6 | Copyright (c) 1998 Intel Corporation |
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7 | |||
8 | Module Name: |
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9 | |||
10 | efipart.h |
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11 | |||
12 | Abstract: |
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13 | Info about disk partitions and Master Boot Records |
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14 | |||
15 | |||
16 | |||
17 | |||
18 | Revision History |
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19 | |||
20 | --*/ |
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21 | |||
22 | // |
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23 | // |
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24 | // |
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25 | |||
26 | #define EFI_PARTITION 0xef |
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27 | #define MBR_SIZE 512 |
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28 | |||
29 | #pragma pack(1) |
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30 | |||
31 | typedef struct { |
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32 | UINT8 BootIndicator; |
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33 | UINT8 StartHead; |
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34 | UINT8 StartSector; |
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35 | UINT8 StartTrack; |
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36 | UINT8 OSIndicator; |
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37 | UINT8 EndHead; |
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38 | UINT8 EndSector; |
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39 | UINT8 EndTrack; |
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40 | UINT8 StartingLBA[4]; |
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41 | UINT8 SizeInLBA[4]; |
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42 | } MBR_PARTITION_RECORD; |
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43 | |||
44 | #define EXTRACT_UINT32(D) (UINT32)(D[0] | (D[1] << 8) | (D[2] << 16) | (D[3] << 24)) |
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45 | |||
46 | #define MBR_SIGNATURE 0xaa55 |
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47 | #define MIN_MBR_DEVICE_SIZE 0x80000 |
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48 | #define MBR_ERRATA_PAD 0x40000 // 128 MB |
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49 | |||
50 | #define MAX_MBR_PARTITIONS 4 |
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51 | typedef struct { |
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52 | UINT8 BootStrapCode[440]; |
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53 | UINT8 UniqueMbrSignature[4]; |
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54 | UINT8 Unknown[2]; |
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55 | MBR_PARTITION_RECORD Partition[MAX_MBR_PARTITIONS]; |
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56 | UINT16 Signature; |
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57 | } MASTER_BOOT_RECORD; |
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58 | #pragma pack() |
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59 | |||
60 | |||
61 | #endif |