Root/
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> |
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_HEADER_SIGNATURE 0x5452415020494645ULL |
41 | #define GPT_HEADER_REVISION_V1 0x00010000 |
42 | #define GPT_PRIMARY_PARTITION_TABLE_LBA 1 |
43 | |
44 | #define PARTITION_SYSTEM_GUID \ |
45 | EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \ |
46 | 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B) |
47 | #define LEGACY_MBR_PARTITION_GUID \ |
48 | EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \ |
49 | 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F) |
50 | #define PARTITION_MSFT_RESERVED_GUID \ |
51 | EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \ |
52 | 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE) |
53 | #define PARTITION_BASIC_DATA_GUID \ |
54 | EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \ |
55 | 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7) |
56 | #define PARTITION_LINUX_RAID_GUID \ |
57 | EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \ |
58 | 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e) |
59 | #define PARTITION_LINUX_SWAP_GUID \ |
60 | EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \ |
61 | 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f) |
62 | #define PARTITION_LINUX_LVM_GUID \ |
63 | EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \ |
64 | 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28) |
65 | |
66 | typedef struct _gpt_header { |
67 | __le64 signature; |
68 | __le32 revision; |
69 | __le32 header_size; |
70 | __le32 header_crc32; |
71 | __le32 reserved1; |
72 | __le64 my_lba; |
73 | __le64 alternate_lba; |
74 | __le64 first_usable_lba; |
75 | __le64 last_usable_lba; |
76 | efi_guid_t disk_guid; |
77 | __le64 partition_entry_lba; |
78 | __le32 num_partition_entries; |
79 | __le32 sizeof_partition_entry; |
80 | __le32 partition_entry_array_crc32; |
81 | |
82 | /* The rest of the logical block is reserved by UEFI and must be zero. |
83 | * EFI standard handles this by: |
84 | * |
85 | * uint8_t reserved2[ BlockSize - 92 ]; |
86 | */ |
87 | } __attribute__ ((packed)) gpt_header; |
88 | |
89 | typedef struct _gpt_entry_attributes { |
90 | u64 required_to_function:1; |
91 | u64 reserved:47; |
92 | u64 type_guid_specific:16; |
93 | } __attribute__ ((packed)) gpt_entry_attributes; |
94 | |
95 | typedef struct _gpt_entry { |
96 | efi_guid_t partition_type_guid; |
97 | efi_guid_t unique_partition_guid; |
98 | __le64 starting_lba; |
99 | __le64 ending_lba; |
100 | gpt_entry_attributes attributes; |
101 | efi_char16_t partition_name[72 / sizeof (efi_char16_t)]; |
102 | } __attribute__ ((packed)) gpt_entry; |
103 | |
104 | typedef struct _legacy_mbr { |
105 | u8 boot_code[440]; |
106 | __le32 unique_mbr_signature; |
107 | __le16 unknown; |
108 | struct partition partition_record[4]; |
109 | __le16 signature; |
110 | } __attribute__ ((packed)) legacy_mbr; |
111 | |
112 | /* Functions */ |
113 | extern int efi_partition(struct parsed_partitions *state); |
114 | |
115 | #endif |
116 | |
117 | /* |
118 | * Overrides for Emacs so that we follow Linus's tabbing style. |
119 | * Emacs will notice this stuff at the end of the file and automatically |
120 | * adjust the settings for this buffer only. This must remain at the end |
121 | * of the file. |
122 | * -------------------------------------------------------------------------- |
123 | * Local variables: |
124 | * c-indent-level: 4 |
125 | * c-brace-imaginary-offset: 0 |
126 | * c-brace-offset: -4 |
127 | * c-argdecl-indent: 4 |
128 | * c-label-offset: -4 |
129 | * c-continued-statement-offset: 4 |
130 | * c-continued-brace-offset: 0 |
131 | * indent-tabs-mode: nil |
132 | * tab-width: 8 |
133 | * End: |
134 | */ |
135 |
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