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1da177e4 LT |
1 | /************************************************************ |
2 | * EFI GUID Partition Table | |
3 | * Per Intel EFI Specification v1.02 | |
4 | * http://developer.intel.com/technology/efi/efi.htm | |
5 | * | |
6 | * By Matt Domsch <Matt_Domsch@dell.com> Fri Sep 22 22:15:56 CDT 2000 | |
7 | * Copyright 2000,2001 Dell Inc. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
22 | * | |
23 | ************************************************************/ | |
24 | ||
25 | #ifndef FS_PART_EFI_H_INCLUDED | |
26 | #define FS_PART_EFI_H_INCLUDED | |
27 | ||
28 | #include <linux/types.h> | |
1da177e4 LT |
29 | #include <linux/fs.h> |
30 | #include <linux/genhd.h> | |
31 | #include <linux/kernel.h> | |
32 | #include <linux/major.h> | |
33 | #include <linux/string.h> | |
34 | #include <linux/efi.h> | |
35 | ||
36 | #define MSDOS_MBR_SIGNATURE 0xaa55 | |
37 | #define EFI_PMBR_OSTYPE_EFI 0xEF | |
38 | #define EFI_PMBR_OSTYPE_EFI_GPT 0xEE | |
39 | ||
40 | #define GPT_BLOCK_SIZE 512 | |
41 | #define GPT_HEADER_SIGNATURE 0x5452415020494645ULL | |
42 | #define GPT_HEADER_REVISION_V1 0x00010000 | |
43 | #define GPT_PRIMARY_PARTITION_TABLE_LBA 1 | |
44 | ||
45 | #define PARTITION_SYSTEM_GUID \ | |
46 | EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \ | |
47 | 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B) | |
48 | #define LEGACY_MBR_PARTITION_GUID \ | |
49 | EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \ | |
50 | 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F) | |
51 | #define PARTITION_MSFT_RESERVED_GUID \ | |
52 | EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \ | |
53 | 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE) | |
54 | #define PARTITION_BASIC_DATA_GUID \ | |
55 | EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \ | |
56 | 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7) | |
57 | #define PARTITION_LINUX_RAID_GUID \ | |
58 | EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \ | |
59 | 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e) | |
60 | #define PARTITION_LINUX_SWAP_GUID \ | |
61 | EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \ | |
62 | 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f) | |
63 | #define PARTITION_LINUX_LVM_GUID \ | |
64 | EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \ | |
65 | 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28) | |
66 | ||
67 | typedef struct _gpt_header { | |
68 | __le64 signature; | |
69 | __le32 revision; | |
70 | __le32 header_size; | |
71 | __le32 header_crc32; | |
72 | __le32 reserved1; | |
73 | __le64 my_lba; | |
74 | __le64 alternate_lba; | |
75 | __le64 first_usable_lba; | |
76 | __le64 last_usable_lba; | |
77 | efi_guid_t disk_guid; | |
78 | __le64 partition_entry_lba; | |
79 | __le32 num_partition_entries; | |
80 | __le32 sizeof_partition_entry; | |
81 | __le32 partition_entry_array_crc32; | |
82 | u8 reserved2[GPT_BLOCK_SIZE - 92]; | |
83 | } __attribute__ ((packed)) gpt_header; | |
84 | ||
85 | typedef struct _gpt_entry_attributes { | |
86 | u64 required_to_function:1; | |
87 | u64 reserved:47; | |
88 | u64 type_guid_specific:16; | |
89 | } __attribute__ ((packed)) gpt_entry_attributes; | |
90 | ||
91 | typedef struct _gpt_entry { | |
92 | efi_guid_t partition_type_guid; | |
93 | efi_guid_t unique_partition_guid; | |
94 | __le64 starting_lba; | |
95 | __le64 ending_lba; | |
96 | gpt_entry_attributes attributes; | |
97 | efi_char16_t partition_name[72 / sizeof (efi_char16_t)]; | |
98 | } __attribute__ ((packed)) gpt_entry; | |
99 | ||
100 | typedef struct _legacy_mbr { | |
101 | u8 boot_code[440]; | |
102 | __le32 unique_mbr_signature; | |
103 | __le16 unknown; | |
104 | struct partition partition_record[4]; | |
105 | __le16 signature; | |
106 | } __attribute__ ((packed)) legacy_mbr; | |
107 | ||
108 | /* Functions */ | |
109 | extern int efi_partition(struct parsed_partitions *state, struct block_device *bdev); | |
110 | ||
111 | #endif | |
112 | ||
113 | /* | |
114 | * Overrides for Emacs so that we follow Linus's tabbing style. | |
115 | * Emacs will notice this stuff at the end of the file and automatically | |
116 | * adjust the settings for this buffer only. This must remain at the end | |
117 | * of the file. | |
118 | * -------------------------------------------------------------------------- | |
119 | * Local variables: | |
120 | * c-indent-level: 4 | |
121 | * c-brace-imaginary-offset: 0 | |
122 | * c-brace-offset: -4 | |
123 | * c-argdecl-indent: 4 | |
124 | * c-label-offset: -4 | |
125 | * c-continued-statement-offset: 4 | |
126 | * c-continued-brace-offset: 0 | |
127 | * indent-tabs-mode: nil | |
128 | * tab-width: 8 | |
129 | * End: | |
130 | */ |