| Manish V Badarkhe | 2bb45ff | 2021-03-16 10:01:27 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2021, Arm Limited. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | * |
| 6 | * FWU metadata information as per the specification section 4.1: |
| 7 | * https://developer.arm.com/documentation/den0118/a/ |
| 8 | * |
| 9 | */ |
| 10 | |
| 11 | #ifndef FWU_METADATA_H |
| 12 | #define FWU_METADATA_H |
| 13 | |
| 14 | #include <stdint.h> |
| 15 | #include <tools_share/uuid.h> |
| 16 | |
| 17 | /* Properties of image in a bank */ |
| 18 | struct fwu_image_properties { |
| 19 | |
| 20 | /* UUID of the image in this bank */ |
| 21 | uuid_t img_uuid; |
| 22 | |
| 23 | /* [0]: bit describing the image acceptance status – |
| 24 | * 1 means the image is accepted |
| 25 | * [31:1]: MBZ |
| 26 | */ |
| 27 | uint32_t accepted; |
| 28 | |
| 29 | /* reserved (MBZ) */ |
| 30 | uint32_t reserved; |
| 31 | |
| 32 | } __packed; |
| 33 | |
| 34 | /* Image entry information */ |
| 35 | struct fwu_image_entry { |
| 36 | |
| 37 | /* UUID identifying the image type */ |
| 38 | uuid_t img_type_uuid; |
| 39 | |
| 40 | /* UUID of the storage volume where the image is located */ |
| 41 | uuid_t location_uuid; |
| 42 | |
| 43 | /* Properties of images with img_type_uuid in the different FW banks */ |
| 44 | struct fwu_image_properties img_props[NR_OF_FW_BANKS]; |
| 45 | |
| 46 | } __packed; |
| 47 | |
| 48 | /* |
| 49 | * FWU metadata filled by the updater and consumed by TF-A for |
| 50 | * various purposes as below: |
| 51 | * 1. Get active FW bank. |
| 52 | * 2. Rollback to previous working FW bank. |
| 53 | * 3. Get properties of all images present in all banks. |
| 54 | */ |
| 55 | struct fwu_metadata { |
| 56 | |
| 57 | /* Metadata CRC value */ |
| 58 | uint32_t crc_32; |
| 59 | |
| 60 | /* Metadata version */ |
| 61 | uint32_t version; |
| 62 | |
| 63 | /* Bank index with which device boots */ |
| 64 | uint32_t active_index; |
| 65 | |
| 66 | /* Previous bank index with which device booted successfully */ |
| 67 | uint32_t previous_active_index; |
| 68 | |
| 69 | /* Image entry information */ |
| 70 | struct fwu_image_entry img_entry[NR_OF_IMAGES_IN_FW_BANK]; |
| 71 | |
| 72 | } __packed; |
| 73 | |
| 74 | #endif /* FWU_METADATA_H */ |