[PATCH 0/6] Add support for fwumdata
Kory Maincent
kory.maincent at bootlin.com
Wed Dec 3 11:01:08 CET 2025
On Tue, 02 Dec 2025 18:28:25 +0100
Kory Maincent <kory.maincent at bootlin.com> 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.
Still wondering about the choice of putting this fwumdata tool in U-Boot
instead of TF-A. TF-A is the boot part that manages the update process and
rollback through the FWU metadata, therefore, this is where it should belong.
Why, in the first place, mkfwumdata was accepted into U-boot instead of TF-A?
Regards,
--
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com
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