2974e2cd28
The fwu metadata in the metadata partitions should/are packed to guarantee that the info is correct in all platforms. Also the size of them are used to calculate the crc32 and that is important to get it right. Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (c) 2022, Linaro Limited
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*/
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#if !defined _FWU_MDATA_H_
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#define _FWU_MDATA_H_
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#include <linux/compiler_attributes.h>
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#include <efi.h>
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/**
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* struct fwu_image_bank_info - firmware image information
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* @image_uuid: Guid value of the image in this bank
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* @accepted: Acceptance status of the image
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* @reserved: Reserved
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*
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* The structure contains image specific fields which are
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* used to identify the image and to specify the image's
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* acceptance status
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*/
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struct fwu_image_bank_info {
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efi_guid_t image_uuid;
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uint32_t accepted;
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uint32_t reserved;
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} __packed;
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/**
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* struct fwu_image_entry - information for a particular type of image
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* @image_type_uuid: Guid value for identifying the image type
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* @location_uuid: Guid of the storage volume where the image is located
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* @img_bank_info: Array containing properties of images
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*
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* This structure contains information on various types of updatable
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* firmware images. Each image type then contains an array of image
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* information per bank.
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*/
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struct fwu_image_entry {
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efi_guid_t image_type_uuid;
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efi_guid_t location_uuid;
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struct fwu_image_bank_info img_bank_info[CONFIG_FWU_NUM_BANKS];
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} __packed;
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/**
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* struct fwu_mdata - FWU metadata structure for multi-bank updates
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* @crc32: crc32 value for the FWU metadata
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* @version: FWU metadata version
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* @active_index: Index of the bank currently used for booting images
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* @previous_active_inde: Index of the bank used before the current bank
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* being used for booting
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* @img_entry: Array of information on various firmware images that can
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* be updated
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*
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* This structure is used to store all the needed information for performing
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* multi bank updates on the platform. This contains info on the bank being
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* used to boot along with the information needed for identification of
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* individual images
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*/
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struct fwu_mdata {
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uint32_t crc32;
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uint32_t version;
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uint32_t active_index;
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uint32_t previous_active_index;
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struct fwu_image_entry img_entry[CONFIG_FWU_NUM_IMAGES_PER_BANK];
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} __packed;
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#endif /* _FWU_MDATA_H_ */
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