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feat(guid-partition): allow to find partition by type UUID

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Add function to return the partition by type.

Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>
Change-Id: I87729dc5e68fbc45a523c894b67595b0079dd8fb
This commit is contained in:
Lionel Debieve 2022-02-24 18:56:28 +01:00 • committed by Yann Gautier
parent 8fc6fb5cae
commit 564f5d4776
3 changed files with 17 additions and 1 deletions
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3
drivers/partition/gpt.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
* Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -59,6 +59,7 @@ int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry)
gpt_entry->first_lba + 1) *
PLAT_PARTITION_BLOCK_SIZE;
guidcpy(&entry->part_guid, &gpt_entry->unique_uuid);
guidcpy(&entry->type_guid, &gpt_entry->type_uuid);
return 0;
}

13
drivers/partition/partition.c
View file

@ -266,6 +266,19 @@ const partition_entry_t *get_partition_entry(const char *name)
return NULL;
}
const partition_entry_t *get_partition_entry_by_type(const uuid_t *type_uuid)
{
int i;
for (i = 0; i < list.entry_count; i++) {
if (guidcmp(type_uuid, &list.list[i].type_guid) == 0) {
return &list.list[i];
}
}
return NULL;
}
const partition_entry_t *get_partition_entry_by_uuid(const uuid_t *part_uuid)
{
int i;

2
include/drivers/partition/partition.h
View file

@ -36,6 +36,7 @@ typedef struct partition_entry {
uint64_t length;
char name[EFI_NAMELEN];
struct efi_guid part_guid;
struct efi_guid type_guid;
} partition_entry_t;
typedef struct partition_entry_list {
@ -45,6 +46,7 @@ typedef struct partition_entry_list {
int load_partition_table(unsigned int image_id);
const partition_entry_t *get_partition_entry(const char *name);
const partition_entry_t *get_partition_entry_by_type(const uuid_t *type_guid);
const partition_entry_t *get_partition_entry_by_uuid(const uuid_t *part_uuid);
const partition_entry_list_t *get_partition_entry_list(void);
void partition_init(unsigned int image_id);