On Tue, 02 Dec 2025 18:28:25 +0100
Kory Maincent <[email protected]> wrote:
> Add a new fwumdata tool to allows users to read, display, and modify FWU
> (Firmware Update) metadata from Linux userspace. It provides functionality
> similar to fw_printenv/fw_setenv but for FWU metadata. Users can view
> metadata, change active/previous bank indices, modify bank states, and set
> image acceptance flags. Configuration is done via fwumdata.config file.
>
> Made a few change to mkfwumdata tool along the way.
I just noticed that I should have added an output example:
$ ./fwumdata -l
FWU Metadata:
Version: 2
Active Index: 0
Previous Index: 1
CRC32: 0x1f21ff7b
Metadata Size: 120 bytes
Descriptor Offset: 16
Bank States:
Bank 0: accepted (0xfc)
Bank 1: accepted (0xfc)
Firmware Store Descriptor:
Number of Banks: 2
Number of Images: 1
Image Entry Size: 80
Bank Info Entry Size: 24
Images:
Image 0:
Image Type GUID: 65ae85ad-1fb3-0b46-8c5d-285543aa6eab
Location GUID: 51513491-da07-2a4f-9bea-375ea53b1b5c
Banks:
Bank 0:
Image GUID:
cb2df442-f929-6a44-a374-672d92eb2aa7
Accepted: yes (1)
Bank 1:
Image GUID:
a839a18f-395c-484f-83b8-0354077c8f9f
Accepted: yes (1)
Regards,
--
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
