[Suit] MCUboot/Zephyr involvement

[David Brown <[e-mail]>]

This week, Linaro held a SPRINT where among other things, we discussed our future direction for firmware upgrade, especially in regards to two configurations: a Secure/Non-secure dual image system on a single CPU, and a similar dual image running on two separate CPUs.

 

At this point, management of multiple images is not deeply discussed by the proposed documents, and I’m wondering if this kind of support would best be left to additional documentation.

 

One thing I’d like to consider is how multiple images could be supported by a single manifest. There are possibilities, such as concatenating the manifests, or just having to track the multiple manifests separately. Most of the fields in the manifest allow multiple instances of that field, except for the payload, where the manifest only describes a single payload. What would be the ramifications of allowing 1 or more payload blocks in the manifest?

 

Thanks,

David