| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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/config.h> |
| 30 | #include <linux/fs.h> |
| 31 | #include <linux/genhd.h> |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/major.h> |
| 34 | #include <linux/string.h> |
| 35 | #include <linux/efi.h> |
| 36 | |
| 37 | #define MSDOS_MBR_SIGNATURE 0xaa55 |
| 38 | #define EFI_PMBR_OSTYPE_EFI 0xEF |
| 39 | #define EFI_PMBR_OSTYPE_EFI_GPT 0xEE |
| 40 | |
| 41 | #define GPT_BLOCK_SIZE 512 |
| 42 | #define GPT_HEADER_SIGNATURE 0x5452415020494645ULL |
| 43 | #define GPT_HEADER_REVISION_V1 0x00010000 |
| 44 | #define GPT_PRIMARY_PARTITION_TABLE_LBA 1 |
| 45 | |
| 46 | #define PARTITION_SYSTEM_GUID \ |
| 47 | EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \ |
| 48 | 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B) |
| 49 | #define LEGACY_MBR_PARTITION_GUID \ |
| 50 | EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \ |
| 51 | 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F) |
| 52 | #define PARTITION_MSFT_RESERVED_GUID \ |
| 53 | EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \ |
| 54 | 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE) |
| 55 | #define PARTITION_BASIC_DATA_GUID \ |
| 56 | EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \ |
| 57 | 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7) |
| 58 | #define PARTITION_LINUX_RAID_GUID \ |
| 59 | EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \ |
| 60 | 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e) |
| 61 | #define PARTITION_LINUX_SWAP_GUID \ |
| 62 | EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \ |
| 63 | 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f) |
| 64 | #define PARTITION_LINUX_LVM_GUID \ |
| 65 | EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \ |
| 66 | 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28) |
| 67 | |
| 68 | typedef struct _gpt_header { |
| 69 | __le64 signature; |
| 70 | __le32 revision; |
| 71 | __le32 header_size; |
| 72 | __le32 header_crc32; |
| 73 | __le32 reserved1; |
| 74 | __le64 my_lba; |
| 75 | __le64 alternate_lba; |
| 76 | __le64 first_usable_lba; |
| 77 | __le64 last_usable_lba; |
| 78 | efi_guid_t disk_guid; |
| 79 | __le64 partition_entry_lba; |
| 80 | __le32 num_partition_entries; |
| 81 | __le32 sizeof_partition_entry; |
| 82 | __le32 partition_entry_array_crc32; |
| 83 | u8 reserved2[GPT_BLOCK_SIZE - 92]; |
| 84 | } __attribute__ ((packed)) gpt_header; |
| 85 | |
| 86 | typedef struct _gpt_entry_attributes { |
| 87 | u64 required_to_function:1; |
| 88 | u64 reserved:47; |
| 89 | u64 type_guid_specific:16; |
| 90 | } __attribute__ ((packed)) gpt_entry_attributes; |
| 91 | |
| 92 | typedef struct _gpt_entry { |
| 93 | efi_guid_t partition_type_guid; |
| 94 | efi_guid_t unique_partition_guid; |
| 95 | __le64 starting_lba; |
| 96 | __le64 ending_lba; |
| 97 | gpt_entry_attributes attributes; |
| 98 | efi_char16_t partition_name[72 / sizeof (efi_char16_t)]; |
| 99 | } __attribute__ ((packed)) gpt_entry; |
| 100 | |
| 101 | typedef struct _legacy_mbr { |
| 102 | u8 boot_code[440]; |
| 103 | __le32 unique_mbr_signature; |
| 104 | __le16 unknown; |
| 105 | struct partition partition_record[4]; |
| 106 | __le16 signature; |
| 107 | } __attribute__ ((packed)) legacy_mbr; |
| 108 | |
| 109 | /* Functions */ |
| 110 | extern int efi_partition(struct parsed_partitions *state, struct block_device *bdev); |
| 111 | |
| 112 | #endif |
| 113 | |
| 114 | /* |
| 115 | * Overrides for Emacs so that we follow Linus's tabbing style. |
| 116 | * Emacs will notice this stuff at the end of the file and automatically |
| 117 | * adjust the settings for this buffer only. This must remain at the end |
| 118 | * of the file. |
| 119 | * -------------------------------------------------------------------------- |
| 120 | * Local variables: |
| 121 | * c-indent-level: 4 |
| 122 | * c-brace-imaginary-offset: 0 |
| 123 | * c-brace-offset: -4 |
| 124 | * c-argdecl-indent: 4 |
| 125 | * c-label-offset: -4 |
| 126 | * c-continued-statement-offset: 4 |
| 127 | * c-continued-brace-offset: 0 |
| 128 | * indent-tabs-mode: nil |
| 129 | * tab-width: 8 |
| 130 | * End: |
| 131 | */ |