[coreboot-gerrit] Change in coreboot[master]: [WIP] cpu/x86/mpinit: Serialize microcode updates for HT threads

[Patrick Rudolph (Code Review)]

Hello build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/44904

to look at the new patch set (#2).

Change subject: [WIP] cpu/x86/mpinit: Serialize microcode updates for HT threads
......................................................................

[WIP] cpu/x86/mpinit: Serialize microcode updates for HT threads

Update microcode using a core specific semaphore.
The SDM and most of the BWGs suggest doing this.

Change-Id: I89a01f6ff94e7d35f1feded3ddb0c43caf7c6c5d
Signed-off-by: Patrick Rudolph 
---
M src/cpu/x86/mp_init.c
M src/cpu/x86/sipi_vector.S
2 files changed, 76 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/04/44904/2