1 /* 2 * Copyright (c) 2016-2023, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef PARTITION_H 8 #define PARTITION_H 9 10 #include <stdint.h> 11 12 #include <lib/cassert.h> 13 #include <drivers/partition/efi.h> 14 #include <tools_share/uuid.h> 15 16 #if !PLAT_PARTITION_MAX_ENTRIES 17 # define PLAT_PARTITION_MAX_ENTRIES 128 18 #endif /* PLAT_PARTITION_MAX_ENTRIES */ 19 20 CASSERT(PLAT_PARTITION_MAX_ENTRIES <= 128, assert_plat_partition_max_entries); 21 22 #if !PLAT_PARTITION_BLOCK_SIZE 23 # define PLAT_PARTITION_BLOCK_SIZE 512 24 #endif /* PLAT_PARTITION_BLOCK_SIZE */ 25 26 CASSERT((PLAT_PARTITION_BLOCK_SIZE == 512) || 27 (PLAT_PARTITION_BLOCK_SIZE == 4096), 28 assert_plat_partition_block_size); 29 30 #define LEGACY_PARTITION_BLOCK_SIZE 512 31 32 #define LBA(n) ((unsigned long long)(n) * PLAT_PARTITION_BLOCK_SIZE) 33 34 typedef struct partition_entry { 35 uint64_t start; 36 uint64_t length; 37 char name[EFI_NAMELEN]; 38 struct efi_guid part_guid; 39 struct efi_guid type_guid; 40 } partition_entry_t; 41 42 typedef struct partition_entry_list { 43 partition_entry_t list[PLAT_PARTITION_MAX_ENTRIES]; 44 int entry_count; 45 } partition_entry_list_t; 46 47 int load_partition_table(unsigned int image_id); 48 const partition_entry_t *get_partition_entry(const char *name); 49 const partition_entry_t *get_partition_entry_by_type(const uuid_t *type_guid); 50 const partition_entry_t *get_partition_entry_by_uuid(const uuid_t *part_uuid); 51 const partition_entry_list_t *get_partition_entry_list(void); 52 void partition_init(unsigned int image_id); 53 int gpt_partition_init(void); 54 55 #endif /* PARTITION_H */ 56
