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Commit | Line | Data |
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07f3d789 | 1 | /* |
2 | * Copyright (C) 2008 RuggedCom, Inc. | |
3 | * Richard Retanubun <RichardRetanubun@RuggedCom.com> | |
4 | * | |
3765b3e7 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
07f3d789 | 6 | */ |
7 | ||
8 | /* | |
9 | * See also linux/fs/partitions/efi.h | |
10 | * | |
11 | * EFI GUID Partition Table | |
12 | * Per Intel EFI Specification v1.02 | |
13 | * http://developer.intel.com/technology/efi/efi.htm | |
14 | */ | |
15 | ||
fae2bf22 CHP |
16 | #include <linux/compiler.h> |
17 | ||
07f3d789 | 18 | #ifndef _DISK_PART_EFI_H |
19 | #define _DISK_PART_EFI_H | |
20 | ||
867a6ac8 SG |
21 | #include <efi.h> |
22 | ||
07f3d789 | 23 | #define MSDOS_MBR_SIGNATURE 0xAA55 |
24 | #define EFI_PMBR_OSTYPE_EFI 0xEF | |
25 | #define EFI_PMBR_OSTYPE_EFI_GPT 0xEE | |
26 | ||
07f3d789 | 27 | #define GPT_HEADER_SIGNATURE 0x5452415020494645ULL |
28 | #define GPT_HEADER_REVISION_V1 0x00010000 | |
29 | #define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL | |
fae2bf22 CHP |
30 | #define GPT_ENTRY_NUMBERS 128 |
31 | #define GPT_ENTRY_SIZE 128 | |
07f3d789 | 32 | |
07f3d789 | 33 | #define PARTITION_SYSTEM_GUID \ |
3cbd8231 WD |
34 | EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \ |
35 | 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B) | |
07f3d789 | 36 | #define LEGACY_MBR_PARTITION_GUID \ |
3cbd8231 WD |
37 | EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \ |
38 | 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F) | |
07f3d789 | 39 | #define PARTITION_MSFT_RESERVED_GUID \ |
3cbd8231 WD |
40 | EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \ |
41 | 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE) | |
07f3d789 | 42 | #define PARTITION_BASIC_DATA_GUID \ |
3cbd8231 WD |
43 | EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \ |
44 | 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7) | |
b38c108a PD |
45 | #define PARTITION_LINUX_FILE_SYSTEM_DATA_GUID \ |
46 | EFI_GUID(0x0FC63DAF, 0x8483, 0x4772, \ | |
47 | 0x8E, 0x79, 0x3D, 0x69, 0xD8, 0x47, 0x7D, 0xE4) | |
07f3d789 | 48 | #define PARTITION_LINUX_RAID_GUID \ |
3cbd8231 WD |
49 | EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \ |
50 | 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e) | |
07f3d789 | 51 | #define PARTITION_LINUX_SWAP_GUID \ |
3cbd8231 WD |
52 | EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \ |
53 | 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f) | |
07f3d789 | 54 | #define PARTITION_LINUX_LVM_GUID \ |
3cbd8231 WD |
55 | EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \ |
56 | 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28) | |
07f3d789 | 57 | |
58 | /* linux/include/efi.h */ | |
fae2bf22 | 59 | typedef u16 efi_char16_t; |
07f3d789 | 60 | |
61 | typedef struct { | |
fae2bf22 | 62 | u8 b[16]; |
07f3d789 | 63 | } efi_guid_t; |
64 | ||
65 | /* based on linux/include/genhd.h */ | |
66 | struct partition { | |
fae2bf22 CHP |
67 | u8 boot_ind; /* 0x80 - active */ |
68 | u8 head; /* starting head */ | |
69 | u8 sector; /* starting sector */ | |
70 | u8 cyl; /* starting cylinder */ | |
71 | u8 sys_ind; /* What partition type */ | |
72 | u8 end_head; /* end head */ | |
73 | u8 end_sector; /* end sector */ | |
74 | u8 end_cyl; /* end cylinder */ | |
75 | __le32 start_sect; /* starting sector counting from 0 */ | |
76 | __le32 nr_sects; /* nr of sectors in partition */ | |
77 | } __packed; | |
07f3d789 | 78 | |
79 | /* based on linux/fs/partitions/efi.h */ | |
80 | typedef struct _gpt_header { | |
fae2bf22 CHP |
81 | __le64 signature; |
82 | __le32 revision; | |
83 | __le32 header_size; | |
84 | __le32 header_crc32; | |
85 | __le32 reserved1; | |
86 | __le64 my_lba; | |
87 | __le64 alternate_lba; | |
88 | __le64 first_usable_lba; | |
89 | __le64 last_usable_lba; | |
07f3d789 | 90 | efi_guid_t disk_guid; |
fae2bf22 CHP |
91 | __le64 partition_entry_lba; |
92 | __le32 num_partition_entries; | |
93 | __le32 sizeof_partition_entry; | |
94 | __le32 partition_entry_array_crc32; | |
fae2bf22 | 95 | } __packed gpt_header; |
07f3d789 | 96 | |
13bf2f55 SW |
97 | typedef union _gpt_entry_attributes { |
98 | struct { | |
fae2bf22 CHP |
99 | u64 required_to_function:1; |
100 | u64 no_block_io_protocol:1; | |
101 | u64 legacy_bios_bootable:1; | |
102 | u64 reserved:45; | |
103 | u64 type_guid_specific:16; | |
13bf2f55 SW |
104 | } fields; |
105 | unsigned long long raw; | |
fae2bf22 | 106 | } __packed gpt_entry_attributes; |
07f3d789 | 107 | |
6eecc030 | 108 | #define PARTNAME_SZ (72 / sizeof(efi_char16_t)) |
07f3d789 | 109 | typedef struct _gpt_entry { |
110 | efi_guid_t partition_type_guid; | |
111 | efi_guid_t unique_partition_guid; | |
fae2bf22 CHP |
112 | __le64 starting_lba; |
113 | __le64 ending_lba; | |
07f3d789 | 114 | gpt_entry_attributes attributes; |
6eecc030 | 115 | efi_char16_t partition_name[PARTNAME_SZ]; |
fae2bf22 | 116 | } __packed gpt_entry; |
07f3d789 | 117 | |
118 | typedef struct _legacy_mbr { | |
fae2bf22 CHP |
119 | u8 boot_code[440]; |
120 | __le32 unique_mbr_signature; | |
121 | __le16 unknown; | |
07f3d789 | 122 | struct partition partition_record[4]; |
fae2bf22 CHP |
123 | __le16 signature; |
124 | } __packed legacy_mbr; | |
07f3d789 | 125 | |
3cbd8231 | 126 | #endif /* _DISK_PART_EFI_H */ |