+ CC Sughosh On Wed, 5 Jun 2024 at 15:29, Caleb Connolly <caleb.conno...@linaro.org> wrote: > > > > On 05/06/2024 11:25, Ilias Apalodimas wrote: > > Hi Heinrich > > > > On Wed, 5 Jun 2024 at 09:36, Heinrich Schuchardt <xypron.g...@gmx.de> wrote: > >> > >> On 5/31/24 15:50, Caleb Connolly wrote: > >>> Add a tool that can generate GUIDs that match those generated internally > >>> by U-Boot for capsule update fw_images. > >>> > >>> Dynamic UUIDs in U-Boot work by taking a namespace UUID and hashing it > >>> with the board model, compatible, and fw_image name. > >>> > >>> This tool accepts the same inputs and will produce the same GUID as > >>> U-Boot would at runtime. > >> > >> This functionality should be integrated into the mkeficapsule. > >> > >> Just pass the device-tree into mkeficapsule and generate the GUIDs > >> whereever they are needed. > > > > I like the idea of moving this mkeficapsule which is already part of > > distro packages but, isn't it easier to pass the compatible string > > node and the namespace? > > Yeah, we only need the first entry in the compatible property, so > parsing the whole DT is a bit overkill. > > I can look at combining these tools, can mkeficapsule generate a capsule > for multiple images?
Not yet. There's [0] which adds that functionality but we are discussing parsing a .yaml file instead of a custom format > > Would we want it to work such that you provide the namespace GUID, > compatible, and image names, and have it generate a capsule with the > right image GUIDs? > > Or would it be simple enough to just incorporate the functionality of > genguid? > I'd argue for both since people might choose other tools to generate a capsule. So you want 2 flags ideally (random flags) -x: dump the autogenerated GUIDs -y use the autogenerated GUIDs on capsule generation Since mkeficapsule can't generate a capsule with multiple payloads yet, you will be limited to just one, but I guess it's easy to expand it once [0] is merged [0] https://lore.kernel.org/u-boot/20240419065542.1160527-1-sughosh.g...@linaro.org/ Thanks /Ilias
