1201b66b7SHaojian Zhuang /* 2201b66b7SHaojian Zhuang * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3201b66b7SHaojian Zhuang * 482cb2c1aSdp-arm * SPDX-License-Identifier: BSD-3-Clause 5201b66b7SHaojian Zhuang */ 6201b66b7SHaojian Zhuang 7*c3cf06f1SAntonio Nino Diaz #ifndef GPT_H 8*c3cf06f1SAntonio Nino Diaz #define GPT_H 9201b66b7SHaojian Zhuang 10201b66b7SHaojian Zhuang #include <partition.h> 11201b66b7SHaojian Zhuang 12201b66b7SHaojian Zhuang #define PARTITION_TYPE_GPT 0xee 13201b66b7SHaojian Zhuang #define GPT_HEADER_OFFSET PARTITION_BLOCK_SIZE 14201b66b7SHaojian Zhuang #define GPT_ENTRY_OFFSET (GPT_HEADER_OFFSET + \ 15201b66b7SHaojian Zhuang PARTITION_BLOCK_SIZE) 16201b66b7SHaojian Zhuang #define GUID_LEN 16 17201b66b7SHaojian Zhuang 18201b66b7SHaojian Zhuang #define GPT_SIGNATURE "EFI PART" 19201b66b7SHaojian Zhuang 20201b66b7SHaojian Zhuang typedef struct gpt_entry { 21201b66b7SHaojian Zhuang unsigned char type_uuid[GUID_LEN]; 22201b66b7SHaojian Zhuang unsigned char unique_uuid[GUID_LEN]; 23201b66b7SHaojian Zhuang unsigned long long first_lba; 24201b66b7SHaojian Zhuang unsigned long long last_lba; 25201b66b7SHaojian Zhuang unsigned long long attr; 26201b66b7SHaojian Zhuang unsigned short name[EFI_NAMELEN]; 27201b66b7SHaojian Zhuang } gpt_entry_t; 28201b66b7SHaojian Zhuang 29201b66b7SHaojian Zhuang typedef struct gpt_header { 30201b66b7SHaojian Zhuang unsigned char signature[8]; 31201b66b7SHaojian Zhuang unsigned int revision; 32201b66b7SHaojian Zhuang unsigned int size; 33201b66b7SHaojian Zhuang unsigned int header_crc; 34201b66b7SHaojian Zhuang unsigned int reserved; 35201b66b7SHaojian Zhuang unsigned long long current_lba; 36201b66b7SHaojian Zhuang unsigned long long backup_lba; 37201b66b7SHaojian Zhuang unsigned long long first_lba; 38201b66b7SHaojian Zhuang unsigned long long last_lba; 39201b66b7SHaojian Zhuang unsigned char disk_uuid[16]; 40201b66b7SHaojian Zhuang /* starting LBA of array of partition entries */ 41201b66b7SHaojian Zhuang unsigned long long part_lba; 42201b66b7SHaojian Zhuang /* number of partition entries in array */ 43201b66b7SHaojian Zhuang unsigned int list_num; 44201b66b7SHaojian Zhuang /* size of a single partition entry (usually 128) */ 45201b66b7SHaojian Zhuang unsigned int part_size; 46201b66b7SHaojian Zhuang unsigned int part_crc; 47201b66b7SHaojian Zhuang } gpt_header_t; 48201b66b7SHaojian Zhuang 49201b66b7SHaojian Zhuang int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry); 50201b66b7SHaojian Zhuang 51*c3cf06f1SAntonio Nino Diaz #endif /* GPT_H */ 52