[PATCH 3/3] efi_loader: disk: add EFI_PARTITION_INFO_PROTOCOL support

[Javier Martinez Canillas]

Tom Rini <trini at konsulko.com> writes:

Hello Tom,

> On Fri, Jun 13, 2025 at 04:54:48PM +0200, Javier Martinez Canillas wrote:

[...]

>> The project is https://gitlab.com/CentOS/automotive/src/ukiboot and reads
>> UKI (https://uapi-group.org/specifications/specs/unified_kernel_image)
>> images from raw data partitions. Just like ABL reads Android Boot images.
>> 
>> > Are you planning to add it to the EBBR specification?
>> >
>> 
>> I haven't thought about it before but I also didn't know that u-boot had
>> this requirement. Probably it should be documented somewhere to make it
>> more clear? Maybe I didn't look enough but didn't find a doc in the repo.
>
> We are not strictly and only EBBR requirements, if there is good reason

That's good to know. Heinrich's answer seemed to imply that u-boot was
limited to EBBR requirements.

> to add more features (and tests). But Heinrich's follow-up question is

Oh, I missed the lib/efi_selftest directory. I'll see to add a test then.

> quite important. I feel like there's already a half dozen offerings of
> A/B update that works within UEFI.
>

I just brought the A/B boot protocol used by ukiboot because I was asked
how I was using the EFI_PARTITION_INFO_PROTOCOL. But I'm not proposing to
add a new A/B update mechanism for u-boot, just to implement an existing
EFI protocol...

> -- 
> Tom

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat