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/*
* Copyright (c) 2021, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*
* FWU metadata information as per the specification section 4.1:
* https://developer.arm.com/documentation/den0118/a/
*
*/
#ifndef FWU_METADATA_H
#define FWU_METADATA_H
#include <stdint.h>
#include <tools_share/uuid.h>
/* Properties of image in a bank */
struct fwu_image_properties {
/* UUID of the image in this bank */
uuid_t img_uuid;
/* [0]: bit describing the image acceptance status –
* 1 means the image is accepted
* [31:1]: MBZ
*/
uint32_t accepted;
/* reserved (MBZ) */
uint32_t reserved;
} __packed;
/* Image entry information */
struct fwu_image_entry {
/* UUID identifying the image type */
uuid_t img_type_uuid;
/* UUID of the storage volume where the image is located */
uuid_t location_uuid;
/* Properties of images with img_type_uuid in the different FW banks */
struct fwu_image_properties img_props[NR_OF_FW_BANKS];
} __packed;
/*
* FWU metadata filled by the updater and consumed by TF-A for
* various purposes as below:
* 1. Get active FW bank.
* 2. Rollback to previous working FW bank.
* 3. Get properties of all images present in all banks.
*/
struct fwu_metadata {
/* Metadata CRC value */
uint32_t crc_32;
/* Metadata version */
uint32_t version;
/* Bank index with which device boots */
uint32_t active_index;
/* Previous bank index with which device booted successfully */
uint32_t previous_active_index;
/* Image entry information */
struct fwu_image_entry img_entry[NR_OF_IMAGES_IN_FW_BANK];
} __packed;
#endif /* FWU_METADATA_H */
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