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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 07f3d789b9beb7ce3278c974f4d5c8f51b6ab567 / . / disk / part_efi.h
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richardretanubun07f3d782008-09-26 11:13:22 -0400[diff] [blame^]1/*
2 * Copyright (C) 2008 RuggedCom, Inc.
3 * Richard Retanubun <RichardRetanubun@RuggedCom.com>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24/*
25 * See also linux/fs/partitions/efi.h
26 *
27 * EFI GUID Partition Table
28 * Per Intel EFI Specification v1.02
29 * http://developer.intel.com/technology/efi/efi.htm
30*/
31
32#ifndef _DISK_PART_EFI_H
33#define _DISK_PART_EFI_H
34
35#define MSDOS_MBR_SIGNATURE 0xAA55
36#define EFI_PMBR_OSTYPE_EFI 0xEF
37#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
38
39#define GPT_BLOCK_SIZE 512
40#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
41#define GPT_HEADER_REVISION_V1 0x00010000
42#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
43#define GPT_ENTRY_NAME "gpt"
44
45#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
46((efi_guid_t) \
47{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
48 (b) & 0xff, ((b) >> 8) & 0xff, \
49 (c) & 0xff, ((c) >> 8) & 0xff, \
50 (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
51
52#define PARTITION_SYSTEM_GUID \
53 EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
54 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
55#define LEGACY_MBR_PARTITION_GUID \
56 EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
57 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
58#define PARTITION_MSFT_RESERVED_GUID \
59 EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
60 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
61#define PARTITION_BASIC_DATA_GUID \
62 EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
63 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
64#define PARTITION_LINUX_RAID_GUID \
65 EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
66 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
67#define PARTITION_LINUX_SWAP_GUID \
68 EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
69 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
70#define PARTITION_LINUX_LVM_GUID \
71 EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
72 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
73
74/* linux/include/efi.h */
75typedef unsigned short efi_char16_t;
76
77typedef struct {
78 unsigned char b[16];
79} efi_guid_t;
80
81/* based on linux/include/genhd.h */
82struct partition {
83 unsigned char boot_ind; /* 0x80 - active */
84 unsigned char head; /* starting head */
85 unsigned char sector; /* starting sector */
86 unsigned char cyl; /* starting cylinder */
87 unsigned char sys_ind; /* What partition type */
88 unsigned char end_head; /* end head */
89 unsigned char end_sector; /* end sector */
90 unsigned char end_cyl; /* end cylinder */
91 unsigned char start_sect[4]; /* starting sector counting from 0 */
92 unsigned char nr_sects[4]; /* nr of sectors in partition */
93} __attribute__ ((packed));
94
95/* based on linux/fs/partitions/efi.h */
96typedef struct _gpt_header {
97 unsigned char signature[8];
98 unsigned char revision[4];
99 unsigned char header_size[4];
100 unsigned char header_crc32[4];
101 unsigned char reserved1[4];
102 unsigned char my_lba[8];
103 unsigned char alternate_lba[8];
104 unsigned char first_usable_lba[8];
105 unsigned char last_usable_lba[8];
106 efi_guid_t disk_guid;
107 unsigned char partition_entry_lba[8];
108 unsigned char num_partition_entries[4];
109 unsigned char sizeof_partition_entry[4];
110 unsigned char partition_entry_array_crc32[4];
111 unsigned char reserved2[GPT_BLOCK_SIZE - 92];
112} __attribute__ ((packed)) gpt_header;
113
114typedef struct _gpt_entry_attributes {
115 unsigned long long required_to_function:1;
116 unsigned long long reserved:47;
117 unsigned long long type_guid_specific:16;
118} __attribute__ ((packed)) gpt_entry_attributes;
119
120typedef struct _gpt_entry {
121 efi_guid_t partition_type_guid;
122 efi_guid_t unique_partition_guid;
123 unsigned char starting_lba[8];
124 unsigned char ending_lba[8];
125 gpt_entry_attributes attributes;
126 efi_char16_t partition_name[72 / sizeof(efi_char16_t)];
127}
128__attribute__ ((packed)) gpt_entry;
129
130typedef struct _legacy_mbr {
131 unsigned char boot_code[440];
132 unsigned char unique_mbr_signature[4];
133 unsigned char unknown[2];
134 struct partition partition_record[4];
135 unsigned char signature[2];
136} __attribute__ ((packed)) legacy_mbr;
137
138#endif /* _DISK_PART_EFI_H */