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15#include <linux/compiler.h>
16
17#ifndef _DISK_PART_EFI_H
18#define _DISK_PART_EFI_H
19
20#include <efi.h>
21
22#define MSDOS_MBR_SIGNATURE 0xAA55
23#define MSDOS_MBR_BOOT_CODE_SIZE 440
24#define EFI_PMBR_OSTYPE_EFI 0xEF
25#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
26
27#define GPT_HEADER_SIGNATURE_UBOOT 0x5452415020494645ULL
28#define GPT_HEADER_CHROMEOS_IGNORE 0x454d45524f4e4749ULL
29
30#define GPT_HEADER_REVISION_V1 0x00010000
31#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
32#define GPT_ENTRY_NUMBERS CONFIG_EFI_PARTITION_ENTRIES_NUMBERS
33#define GPT_ENTRY_SIZE 128
34
35#define PARTITION_SYSTEM_GUID \
36 EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \
37 0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B)
38#define LEGACY_MBR_PARTITION_GUID \
39 EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \
40 0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F)
41#define PARTITION_MSFT_RESERVED_GUID \
42 EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \
43 0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE)
44#define PARTITION_BASIC_DATA_GUID \
45 EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \
46 0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7)
47#define PARTITION_LINUX_FILE_SYSTEM_DATA_GUID \
48 EFI_GUID(0x0FC63DAF, 0x8483, 0x4772, \
49 0x8E, 0x79, 0x3D, 0x69, 0xD8, 0x47, 0x7D, 0xE4)
50#define PARTITION_LINUX_RAID_GUID \
51 EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \
52 0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e)
53#define PARTITION_LINUX_SWAP_GUID \
54 EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \
55 0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f)
56#define PARTITION_LINUX_LVM_GUID \
57 EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \
58 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28)
59
60
61typedef u16 efi_char16_t;
62
63
64struct partition {
65 u8 boot_ind;
66 u8 head;
67 u8 sector;
68 u8 cyl;
69 u8 sys_ind;
70 u8 end_head;
71 u8 end_sector;
72 u8 end_cyl;
73 __le32 start_sect;
74 __le32 nr_sects;
75} __packed;
76
77
78typedef struct _gpt_header {
79 __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;
88 efi_guid_t disk_guid;
89 __le64 partition_entry_lba;
90 __le32 num_partition_entries;
91 __le32 sizeof_partition_entry;
92 __le32 partition_entry_array_crc32;
93} __packed gpt_header;
94
95typedef union _gpt_entry_attributes {
96 struct {
97 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;
102 } fields;
103 unsigned long long raw;
104} __packed gpt_entry_attributes;
105
106#define PARTNAME_SZ (72 / sizeof(efi_char16_t))
107typedef struct _gpt_entry {
108 efi_guid_t partition_type_guid;
109 efi_guid_t unique_partition_guid;
110 __le64 starting_lba;
111 __le64 ending_lba;
112 gpt_entry_attributes attributes;
113 efi_char16_t partition_name[PARTNAME_SZ];
114} __packed gpt_entry;
115
116typedef struct _legacy_mbr {
117 u8 boot_code[MSDOS_MBR_BOOT_CODE_SIZE];
118 __le32 unique_mbr_signature;
119 __le16 unknown;
120 struct partition partition_record[4];
121 __le16 signature;
122} __packed legacy_mbr;
123
124#endif
125