1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * Copyright (c) 2022, Linaro Limited 4 */ 5 6#if !defined _FWU_MDATA_H_ 7#define _FWU_MDATA_H_ 8 9#include <linux/compiler_attributes.h> 10#include <efi.h> 11 12/** 13 * struct fwu_image_bank_info - firmware image information 14 * @image_uuid: Guid value of the image in this bank 15 * @accepted: Acceptance status of the image 16 * @reserved: Reserved 17 * 18 * The structure contains image specific fields which are 19 * used to identify the image and to specify the image's 20 * acceptance status 21 */ 22struct fwu_image_bank_info { 23 efi_guid_t image_uuid; 24 uint32_t accepted; 25 uint32_t reserved; 26} __packed; 27 28/** 29 * struct fwu_image_entry - information for a particular type of image 30 * @image_type_uuid: Guid value for identifying the image type 31 * @location_uuid: Guid of the storage volume where the image is located 32 * @img_bank_info: Array containing properties of images 33 * 34 * This structure contains information on various types of updatable 35 * firmware images. Each image type then contains an array of image 36 * information per bank. 37 */ 38struct fwu_image_entry { 39 efi_guid_t image_type_uuid; 40 efi_guid_t location_uuid; 41 struct fwu_image_bank_info img_bank_info[CONFIG_FWU_NUM_BANKS]; 42} __packed; 43 44/** 45 * struct fwu_mdata - FWU metadata structure for multi-bank updates 46 * @crc32: crc32 value for the FWU metadata 47 * @version: FWU metadata version 48 * @active_index: Index of the bank currently used for booting images 49 * @previous_active_inde: Index of the bank used before the current bank 50 * being used for booting 51 * @img_entry: Array of information on various firmware images that can 52 * be updated 53 * 54 * This structure is used to store all the needed information for performing 55 * multi bank updates on the platform. This contains info on the bank being 56 * used to boot along with the information needed for identification of 57 * individual images 58 */ 59struct fwu_mdata { 60 uint32_t crc32; 61 uint32_t version; 62 uint32_t active_index; 63 uint32_t previous_active_index; 64 65 struct fwu_image_entry img_entry[CONFIG_FWU_NUM_IMAGES_PER_BANK]; 66} __packed; 67 68#endif /* _FWU_MDATA_H_ */ 69