Re: [PATCH] ACPI: processor idle: Practically limit "Dummy wait" workaround to old Intel systems

From: Kim Phillips
Date: Fri Sep 23 2022 - 14:37:04 EST


On 9/22/22 2:01 PM, Dave Hansen wrote:
On 9/22/22 11:53, Rafael J. Wysocki wrote:
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

or do you want me to pick this up?

I'll just stick it in x86/urgent.

It's modifying code in a x86 #ifdef. I'll call it a small enclave of
sovereign x86 territory in ACPI land, just like an embassy. ;)

Can it be cc:stable@xxxxxxxxxxxxxxx, since it applies cleanly as far
back as this v5.4 commit?:

commit fa583f71a99c85e52781ed877c82c8757437b680

Author: Yin Fengwei <fengwei.yin@xxxxxxxxx>

Date: Thu Oct 24 15:04:20 2019 +0800



ACPI: processor_idle: Skip dummy wait if kernel is in guest


Thanks,

Kim