Re: çå: [PATCH] Delete some unusefull operations for centaur CPU/platform

From: Ingo Molnar
Date: Mon Mar 12 2018 - 04:40:42 EST



* David Wang <DavidWang@xxxxxxxxxxx> wrote:

> [David] pr->flags.has_cst means BIOS define valid C state table. And at lease
> define 2 entries. On all centaur platform which support C3, this condition is
> always true.

> [David] Just as the following comment said, we need not execute WBINVD and
> ARB_DISABLE/ARB_ENABLE when entering C3 if bm_check=1 and bm_control=0. This
> logic is valid for all platform not only for Centaur, I think.

Ok, fair enough!

Thanks,

Ingo