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Haojian Zhuang91f56462016-07-28 14:19:36 +08001/*
2 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
3 *
dp-armfa3cf0b2017-05-03 09:38:09 +01004 * SPDX-License-Identifier: BSD-3-Clause
Haojian Zhuang91f56462016-07-28 14:19:36 +08005 */
6
Antonio Nino Diaz5eb88372018-11-08 10:20:19 +00007#ifndef GPT_H
8#define GPT_H
Haojian Zhuang91f56462016-07-28 14:19:36 +08009
10#include <partition.h>
11
12#define PARTITION_TYPE_GPT 0xee
13#define GPT_HEADER_OFFSET PARTITION_BLOCK_SIZE
14#define GPT_ENTRY_OFFSET (GPT_HEADER_OFFSET + \
15 PARTITION_BLOCK_SIZE)
16#define GUID_LEN 16
17
18#define GPT_SIGNATURE "EFI PART"
19
20typedef struct gpt_entry {
21 unsigned char type_uuid[GUID_LEN];
22 unsigned char unique_uuid[GUID_LEN];
23 unsigned long long first_lba;
24 unsigned long long last_lba;
25 unsigned long long attr;
26 unsigned short name[EFI_NAMELEN];
27} gpt_entry_t;
28
29typedef struct gpt_header {
30 unsigned char signature[8];
31 unsigned int revision;
32 unsigned int size;
33 unsigned int header_crc;
34 unsigned int reserved;
35 unsigned long long current_lba;
36 unsigned long long backup_lba;
37 unsigned long long first_lba;
38 unsigned long long last_lba;
39 unsigned char disk_uuid[16];
40 /* starting LBA of array of partition entries */
41 unsigned long long part_lba;
42 /* number of partition entries in array */
43 unsigned int list_num;
44 /* size of a single partition entry (usually 128) */
45 unsigned int part_size;
46 unsigned int part_crc;
47} gpt_header_t;
48
49int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry);
50
Antonio Nino Diaz5eb88372018-11-08 10:20:19 +000051#endif /* GPT_H */