[coreboot-gerrit] Change in coreboot[master]: lib/stage_cache: Refactor Kconfig options

[Kyösti Mälkki (Code Review)]

Kyösti Mälkki has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/34664 )

Change subject: lib/stage_cache: Refactor Kconfig options
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Patch Set 3:

(1 comment)

https://review.coreboot.org/c/coreboot/+/34664/2//COMMIT_MSG 
Commit Message:

https://review.coreboot.org/c/coreboot/+/34664/2//COMMIT_MSG@12 
PS2, Line 12: Platforms with SMM_TSEG=y always need to implement
            : stage_cache_external_region(). It is allowed to return with a
            : region of size 0 to effectively disable the cache.
> I believe amd/stoneyridge has a hard requirement to have stage_cache for S3 since it uses stage_cach […]

There is followup work that promotes smm_subregion() such that both PARALLEL_MP and TSEG_STAGE_CACHE can build on top of that. Not all work has been pushed for review yet.