1#ifndef _EFI_GPT_H
2#define _EFI_GPT_H
3/*++
4
5Copyright (c) 1998  Intel Corporation
6
7Module Name:
8
9    EfiGpt.h
10
11Abstract:
12    Include file for EFI partitioning scheme
13
14
15
16Revision History
17
18--*/
19
20#define PRIMARY_PART_HEADER_LBA         1
21
22typedef struct {
23    EFI_TABLE_HEADER    Header;
24    EFI_LBA             MyLBA;
25    EFI_LBA             AlternateLBA;
26    EFI_LBA             FirstUsableLBA;
27    EFI_LBA             LastUsableLBA;
28    EFI_GUID            DiskGUID;
29    EFI_LBA             PartitionEntryLBA;
30    UINT32              NumberOfPartitionEntries;
31    UINT32              SizeOfPartitionEntry;
32    UINT32              PartitionEntryArrayCRC32;
33} EFI_PARTITION_TABLE_HEADER;
34
35#define EFI_PTAB_HEADER_ID  "EFI PART"
36
37typedef struct {
38    EFI_GUID    PartitionTypeGUID;
39    EFI_GUID    UniquePartitionGUID;
40    EFI_LBA     StartingLBA;
41    EFI_LBA     EndingLBA;
42    UINT64      Attributes;
43    CHAR16      PartitionName[36];
44} EFI_PARTITION_ENTRY;
45
46//
47// EFI Partition Attributes
48//
49#define EFI_PART_USED_BY_EFI            0x0000000000000001
50#define EFI_PART_REQUIRED_TO_FUNCTION   0x0000000000000002
51#define EFI_PART_USED_BY_OS             0x0000000000000004
52#define EFI_PART_REQUIRED_BY_OS         0x0000000000000008
53#define EFI_PART_BACKUP_REQUIRED        0x0000000000000010
54#define EFI_PART_USER_DATA              0x0000000000000020
55#define EFI_PART_CRITICAL_USER_DATA     0x0000000000000040
56#define EFI_PART_REDUNDANT_PARTITION    0x0000000000000080
57
58#define EFI_PART_TYPE_UNUSED_GUID   \
59    { 0x00000000, 0x0000, 0x0000, {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00} }
60
61#define EFI_PART_TYPE_EFI_SYSTEM_PART_GUID  \
62    { 0xc12a7328, 0xf81f, 0x11d2, {0xba, 0x4b, 0x00, 0xa0, 0xc9, 0x3e, 0xc9, 0x3b} }
63
64#define EFI_PART_TYPE_LEGACY_MBR_GUID   \
65    { 0x024dee41, 0x33e7, 0x11d3, {0x9d, 0x69, 0x00, 0x08, 0xc7, 0x81, 0xf3, 0x9f} }
66
67#endif
68
69