1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/************************************************************
* EFI GUID Partition Table
* Per Intel EFI Specification v1.02
* http://developer.intel.com/technology/efi/efi.htm
*
* By Matt Domsch <Matt_Domsch@dell.com> Fri Sep 22 22:15:56 CDT 2000
* Copyright 2000,2001 Dell Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
************************************************************/
#ifndef FS_PART_EFI_H_INCLUDED
#define FS_PART_EFI_H_INCLUDED
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/genhd.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/string.h>
#include <linux/efi.h>
#include <linux/compiler.h>
#define MSDOS_MBR_SIGNATURE 0xaa55
#define EFI_PMBR_OSTYPE_EFI 0xEF
#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
#define GPT_MBR_PROTECTIVE 1
#define GPT_MBR_HYBRID 2
#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
#define GPT_HEADER_REVISION_V1 0x00010000
#define GPT_PRIMARY_PARTITION_TABLE_LBA 1
#define PARTITION_SYSTEM_GUID \
EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
#define LEGACY_MBR_PARTITION_GUID \
EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
#define PARTITION_MSFT_RESERVED_GUID \
EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
#define PARTITION_BASIC_DATA_GUID \
EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
#define PARTITION_LINUX_RAID_GUID \
EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
#define PARTITION_LINUX_SWAP_GUID \
EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
#define PARTITION_LINUX_LVM_GUID \
EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
typedef struct _gpt_header {
__le64 signature;
__le32 revision;
__le32 header_size;
__le32 header_crc32;
__le32 reserved1;
__le64 my_lba;
__le64 alternate_lba;
__le64 first_usable_lba;
__le64 last_usable_lba;
efi_guid_t disk_guid;
__le64 partition_entry_lba;
__le32 num_partition_entries;
__le32 sizeof_partition_entry;
__le32 partition_entry_array_crc32;
/* The rest of the logical block is reserved by UEFI and must be zero.
* EFI standard handles this by:
*
* uint8_t reserved2[ BlockSize - 92 ];
*/
} __packed gpt_header;
typedef struct _gpt_entry_attributes {
u64 required_to_function:1;
u64 reserved:47;
u64 type_guid_specific:16;
} __packed gpt_entry_attributes;
typedef struct _gpt_entry {
efi_guid_t partition_type_guid;
efi_guid_t unique_partition_guid;
__le64 starting_lba;
__le64 ending_lba;
gpt_entry_attributes attributes;
efi_char16_t partition_name[72 / sizeof (efi_char16_t)];
} __packed gpt_entry;
typedef struct _gpt_mbr_record {
u8 boot_indicator; /* unused by EFI, set to 0x80 for bootable */
u8 start_head; /* unused by EFI, pt start in CHS */
u8 start_sector; /* unused by EFI, pt start in CHS */
u8 start_track;
u8 os_type; /* EFI and legacy non-EFI OS types */
u8 end_head; /* unused by EFI, pt end in CHS */
u8 end_sector; /* unused by EFI, pt end in CHS */
u8 end_track; /* unused by EFI, pt end in CHS */
__le32 starting_lba; /* used by EFI - start addr of the on disk pt */
__le32 size_in_lba; /* used by EFI - size of pt in LBA */
} __packed gpt_mbr_record;
typedef struct _legacy_mbr {
u8 boot_code[440];
__le32 unique_mbr_signature;
__le16 unknown;
gpt_mbr_record partition_record[4];
__le16 signature;
} __packed legacy_mbr;
/* Functions */
extern int efi_partition(struct parsed_partitions *state);
#endif
|
