[XL] Change in coreboot[main]: payloads: Add uefistub payload

[Simon Glass (Code Review)]

Attention is currently required from: Benjamin Doron, Martin L Roth, Maximilian Brune, Patrick Rudolph.

Simon Glass has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/78913?usp=email )

Change subject: payloads: Add uefistub payload
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Patch Set 4:

(1 comment)

Patchset:

PS4:
> > Why do we need to pull pieces out of U-Boot to achieve this? It doesn't seem a very friendly appro […]

Hi Maximillian,

Re solution 2, let's work together on that, instead of this effort!

For 64-bit SMBIOS (I suppose the SMBIOS3 header) there is a patch[1] but it needs a bit of work, or perhaps that has already been done. In any case, I can help, or Heinrich / others on the ML.

For ACPI, can you share your working code? The ACPI code is now fairly generic so enabling it on ARM should not be difficult. Of course any new thing has challenges.

We have enough forking going on in private projects. I would really like to see more collaboration between coreboot and U-Boot.

I did do some fiddling on U-Boot as a library a while back. It is a big effort though...so using the existing payload seems a lot easier.

[1] https://patchwork.ozlabs.org/project/uboot/patch/20231008213646.622002-4-sjg...