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Tom Rini83d290c2018-05-06 17:58:06 -04001/* SPDX-License-Identifier: GPL-2.0+ */
richardretanubun07f3d782008-09-26 11:13:22 -04002/*
3 * Copyright (C) 2008 RuggedCom, Inc.
4 * Richard Retanubun <RichardRetanubun@RuggedCom.com>
richardretanubun07f3d782008-09-26 11:13:22 -04005 */
6
7/*
8 * See also linux/fs/partitions/efi.h
9 *
10 * EFI GUID Partition Table
11 * Per Intel EFI Specification v1.02
12 * http://developer.intel.com/technology/efi/efi.htm
13*/
14
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010015#include <linux/compiler.h>
16
richardretanubun07f3d782008-09-26 11:13:22 -040017#ifndef _DISK_PART_EFI_H
18#define _DISK_PART_EFI_H
19
Simon Glass867a6ac2015-07-31 09:31:36 -060020#include <efi.h>
21
richardretanubun07f3d782008-09-26 11:13:22 -040022#define MSDOS_MBR_SIGNATURE 0xAA55
Sam Protsenko955575c2018-05-22 02:04:21 +030023#define MSDOS_MBR_BOOT_CODE_SIZE 440
richardretanubun07f3d782008-09-26 11:13:22 -040024#define EFI_PMBR_OSTYPE_EFI 0xEF
25#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
26
Heinrich Schuchardt9b8d2642019-12-24 08:11:01 +010027#define GPT_HEADER_SIGNATURE_UBOOT 0x5452415020494645ULL // 'EFI PART'
Urja Rannikko0557d462019-04-11 20:27:51 +000028#define GPT_HEADER_CHROMEOS_IGNORE 0x454d45524f4e4749ULL // 'IGNOREME'
29
richardretanubun07f3d782008-09-26 11:13:22 -040030#define GPT_HEADER_REVISION_V1 0x00010000
31#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
Maxime Ripard4ce52192017-11-14 20:50:04 +010032#define GPT_ENTRY_NUMBERS CONFIG_EFI_PARTITION_ENTRIES_NUMBERS
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010033#define GPT_ENTRY_SIZE 128
richardretanubun07f3d782008-09-26 11:13:22 -040034
richardretanubun07f3d782008-09-26 11:13:22 -040035#define PARTITION_SYSTEM_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010036 EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
37 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
richardretanubun07f3d782008-09-26 11:13:22 -040038#define LEGACY_MBR_PARTITION_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010039 EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
40 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
richardretanubun07f3d782008-09-26 11:13:22 -040041#define PARTITION_MSFT_RESERVED_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010042 EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
43 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
richardretanubun07f3d782008-09-26 11:13:22 -040044#define PARTITION_BASIC_DATA_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010045 EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
46 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
Patrick Delaunayb38c1082015-10-27 11:00:26 +010047#define PARTITION_LINUX_FILE_SYSTEM_DATA_GUID \
48 EFI_GUID(0x0FC63DAF, 0x8483, 0x4772, \
49 0x8E, 0x79, 0x3D, 0x69, 0xD8, 0x47, 0x7D, 0xE4)
richardretanubun07f3d782008-09-26 11:13:22 -040050#define PARTITION_LINUX_RAID_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010051 EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
52 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
richardretanubun07f3d782008-09-26 11:13:22 -040053#define PARTITION_LINUX_SWAP_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010054 EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
55 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
richardretanubun07f3d782008-09-26 11:13:22 -040056#define PARTITION_LINUX_LVM_GUID \
Wolfgang Denk3cbd8232008-11-02 16:14:22 +010057 EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
58 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
richardretanubun07f3d782008-09-26 11:13:22 -040059
60/* linux/include/efi.h */
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010061typedef u16 efi_char16_t;
richardretanubun07f3d782008-09-26 11:13:22 -040062
richardretanubun07f3d782008-09-26 11:13:22 -040063/* based on linux/include/genhd.h */
64struct partition {
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010065 u8 boot_ind; /* 0x80 - active */
66 u8 head; /* starting head */
67 u8 sector; /* starting sector */
68 u8 cyl; /* starting cylinder */
69 u8 sys_ind; /* What partition type */
70 u8 end_head; /* end head */
71 u8 end_sector; /* end sector */
72 u8 end_cyl; /* end cylinder */
73 __le32 start_sect; /* starting sector counting from 0 */
74 __le32 nr_sects; /* nr of sectors in partition */
75} __packed;
richardretanubun07f3d782008-09-26 11:13:22 -040076
77/* based on linux/fs/partitions/efi.h */
78typedef struct _gpt_header {
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010079 __le64 signature;
80 __le32 revision;
81 __le32 header_size;
82 __le32 header_crc32;
83 __le32 reserved1;
84 __le64 my_lba;
85 __le64 alternate_lba;
86 __le64 first_usable_lba;
87 __le64 last_usable_lba;
richardretanubun07f3d782008-09-26 11:13:22 -040088 efi_guid_t disk_guid;
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010089 __le64 partition_entry_lba;
90 __le32 num_partition_entries;
91 __le32 sizeof_partition_entry;
92 __le32 partition_entry_array_crc32;
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010093} __packed gpt_header;
richardretanubun07f3d782008-09-26 11:13:22 -040094
Stephen Warren13bf2f52012-10-08 08:14:36 +000095typedef union _gpt_entry_attributes {
96 struct {
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +010097 u64 required_to_function:1;
98 u64 no_block_io_protocol:1;
99 u64 legacy_bios_bootable:1;
100 u64 reserved:45;
101 u64 type_guid_specific:16;
Stephen Warren13bf2f52012-10-08 08:14:36 +0000102 } fields;
103 unsigned long long raw;
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100104} __packed gpt_entry_attributes;
richardretanubun07f3d782008-09-26 11:13:22 -0400105
Lei Wen6eecc032011-09-07 18:11:19 +0000106#define PARTNAME_SZ (72 / sizeof(efi_char16_t))
richardretanubun07f3d782008-09-26 11:13:22 -0400107typedef struct _gpt_entry {
108 efi_guid_t partition_type_guid;
109 efi_guid_t unique_partition_guid;
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100110 __le64 starting_lba;
111 __le64 ending_lba;
richardretanubun07f3d782008-09-26 11:13:22 -0400112 gpt_entry_attributes attributes;
Lei Wen6eecc032011-09-07 18:11:19 +0000113 efi_char16_t partition_name[PARTNAME_SZ];
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100114} __packed gpt_entry;
richardretanubun07f3d782008-09-26 11:13:22 -0400115
116typedef struct _legacy_mbr {
Sam Protsenko955575c2018-05-22 02:04:21 +0300117 u8 boot_code[MSDOS_MBR_BOOT_CODE_SIZE];
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100118 __le32 unique_mbr_signature;
119 __le16 unknown;
richardretanubun07f3d782008-09-26 11:13:22 -0400120 struct partition partition_record[4];
Chang Hyun Parkfae2bf22012-12-11 11:09:45 +0100121 __le16 signature;
122} __packed legacy_mbr;
richardretanubun07f3d782008-09-26 11:13:22 -0400123
Wolfgang Denk3cbd8232008-11-02 16:14:22 +0100124#endif /* _DISK_PART_EFI_H */