[coreboot-gerrit] Change in coreboot[master]: cpu/x86/mp_init.c: Add wait_finished_mp_run_on_all_cpus

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Subrata Banik, Kane Chen, Arthur Heymans.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63566 )

Change subject: cpu/x86/mp_init.c: Add wait_finished_mp_run_on_all_cpus
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Patch Set 2:

(1 comment)

File src/cpu/x86/mp_init.c:

https://review.coreboot.org/c/coreboot/+/63566/comment/fa425b17_cb608c43 
PS2, Line 984: mp_run_on_aps_and_wait_for_complete
> i haven't yet tried `mp_run_on_all_aps` passing `false`  […]

The `mp_` functions are all "asynchronous" effectively; they ensure that all of the requested APs accept the task before returning, but it does not wait for the APs to finish. The MP init framework has provisions for that when it is required during mp initialization.