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c311f86b | 1 | /** @file\r |
959ccb23 | 2 | EFI Guid Partition Table Format Definition.\r |
3 | \r | |
e0c047a0 | 4 | Copyright (c) 2006 - 2008, Intel Corporation\r |
959ccb23 | 5 | All rights reserved. This program and the accompanying materials\r |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
959ccb23 | 13 | **/\r |
14 | \r | |
15 | #ifndef __UEFI_GPT_H__\r | |
16 | #define __UEFI_GPT_H__\r | |
17 | \r | |
e0c047a0 | 18 | ///\r |
19 | /// The primary GUID Partition Table Header must be\r | |
20 | /// located in LBA 1 (i.e., the second logical block).\r | |
21 | ///\r | |
959ccb23 | 22 | #define PRIMARY_PART_HEADER_LBA 1\r |
8b13229b | 23 | ///\r |
24 | /// EFI Partition Table Signature: "EFI PART"\r | |
25 | /// \r | |
f6d2bcc6 | 26 | #define EFI_PTAB_HEADER_ID SIGNATURE_64 ('E','F','I',' ','P','A','R','T')\r |
959ccb23 | 27 | \r |
28 | #pragma pack(1)\r | |
8b13229b | 29 | \r |
30 | ///\r | |
31 | /// GPT Partition Table Header\r | |
32 | ///\r | |
959ccb23 | 33 | typedef struct {\r |
1bf79370 LG |
34 | ///\r |
35 | /// The table header for the GPT partition Table.\r | |
36 | /// This header contains EFI_PTAB_HEADER_ID\r | |
37 | ///\r | |
959ccb23 | 38 | EFI_TABLE_HEADER Header;\r |
1bf79370 LG |
39 | ///\r |
40 | /// The LBA that contains this data structure.\r | |
41 | ///\r | |
959ccb23 | 42 | EFI_LBA MyLBA;\r |
1bf79370 LG |
43 | ///\r |
44 | /// LBA address of the alternate GUID Partition Table Header.\r | |
45 | ///\r | |
959ccb23 | 46 | EFI_LBA AlternateLBA;\r |
1bf79370 LG |
47 | ///\r |
48 | /// The first usable logical block that may be used\r | |
49 | /// by a partition described by a GUID Partition Entry.\r | |
50 | ///\r | |
959ccb23 | 51 | EFI_LBA FirstUsableLBA;\r |
1bf79370 LG |
52 | ///\r |
53 | /// The last usable logical block that may be used\r | |
54 | /// by a partition described by a GUID Partition Entry.\r | |
55 | ///\r | |
959ccb23 | 56 | EFI_LBA LastUsableLBA;\r |
1bf79370 LG |
57 | ///\r |
58 | /// GUID that can be used to uniquely identify the disk.\r | |
59 | ///\r | |
959ccb23 | 60 | EFI_GUID DiskGUID;\r |
1bf79370 LG |
61 | ///\r |
62 | /// The starting LBA of the GUID Partition Entry array.\r | |
63 | ///\r | |
959ccb23 | 64 | EFI_LBA PartitionEntryLBA;\r |
1bf79370 LG |
65 | ///\r |
66 | /// The number of Partition Entries in the GUID Partition Entry array.\r | |
67 | ///\r | |
959ccb23 | 68 | UINT32 NumberOfPartitionEntries;\r |
1bf79370 LG |
69 | ///\r |
70 | /// The size, in bytes, of each the GUID Partition\r | |
71 | /// Entry structures in the GUID Partition Entry\r | |
72 | /// array. Must be a multiple of 8.\r | |
73 | ///\r | |
959ccb23 | 74 | UINT32 SizeOfPartitionEntry;\r |
1bf79370 LG |
75 | ///\r |
76 | /// The CRC32 of the GUID Partition Entry array.\r | |
77 | /// Starts at PartitionEntryLBA and is\r | |
78 | /// computed over a byte length of\r | |
79 | /// NumberOfPartitionEntries * SizeOfPartitionEntry.\r | |
80 | ///\r | |
959ccb23 | 81 | UINT32 PartitionEntryArrayCRC32;\r |
82 | } EFI_PARTITION_TABLE_HEADER;\r | |
83 | \r | |
8b13229b | 84 | ///\r |
85 | /// GPT Partition Entry\r | |
86 | ///\r | |
959ccb23 | 87 | typedef struct {\r |
1bf79370 LG |
88 | ///\r |
89 | /// Unique ID that defines the purpose and type of this Partition. A value of\r | |
90 | /// zero defines that this partition entry is not being used.\r | |
91 | ///\r | |
959ccb23 | 92 | EFI_GUID PartitionTypeGUID;\r |
1bf79370 LG |
93 | ///\r |
94 | /// GUID that is unique for every partition entry. Every partition ever\r | |
95 | /// created will have a unique GUID.\r | |
96 | /// This GUID must be assigned when the GUID Partition Entry is created.\r | |
97 | ///\r | |
959ccb23 | 98 | EFI_GUID UniquePartitionGUID;\r |
1bf79370 LG |
99 | ///\r |
100 | /// Starting LBA of the partition defined by this entry\r | |
101 | ///\r | |
959ccb23 | 102 | EFI_LBA StartingLBA;\r |
1bf79370 LG |
103 | ///\r |
104 | /// Ending LBA of the partition defined by this entry.\r | |
105 | ///\r | |
959ccb23 | 106 | EFI_LBA EndingLBA;\r |
1bf79370 LG |
107 | ///\r |
108 | /// Attribute bits, all bits reserved by UEFI\r | |
109 | /// Bit 0 Required for the platform to function.\r | |
110 | /// Bits 1-47 Undefined and must be zero.\r | |
111 | /// Bits 48-63 Reserved for GUID specific use.\r | |
112 | ///\r | |
959ccb23 | 113 | UINT64 Attributes;\r |
1bf79370 LG |
114 | ///\r |
115 | /// Unicode string.\r | |
116 | ///\r | |
959ccb23 | 117 | CHAR16 PartitionName[36];\r |
118 | } EFI_PARTITION_ENTRY;\r | |
119 | \r | |
959ccb23 | 120 | #pragma pack()\r |
121 | #endif\r | |
122 | \r | |
123 | \r |