[PATCH v3 6/7] tools: add genguid tool

[Caleb Connolly]

On 05/06/2024 11:25, Ilias Apalodimas wrote:
> Hi Heinrich
> 
> On Wed, 5 Jun 2024 at 09:36, Heinrich Schuchardt <xypron.glpk at 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?

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?

Kind regards,
> 
> Thanks
> /Ilias
>>
>> Best regards
>>
>> Heinrich
> 
> [...]
> 
> Thanks
> /Ilias

-- 
// Caleb (they/them)