Re: [PATCH] x86/cpufeatures: Force disable X86_FEATURE_ENQCMD and remove update_pasid()

From: Luck, Tony
Date: Fri Jun 25 2021 - 11:46:45 EST


On Wed, Jun 09, 2021 at 04:34:31PM -0700, Andy Lutomirski wrote:
> On 6/9/21 10:32 AM, Luck, Tony wrote:
> >>> I've told Fenghua to dig out the previous iteration of this patch where
> >>> the plan was to lazily fix the PASID_MSR in other threads in the #GP
> >>> handler.
> >>
> >> Blech. Also this won't work for other PASID-like features.
> >>
> >> I have a half-written patch to fix this up for real. Stay tuned.
> >
> > Andy: Any update on this?
> >
> > -Tony
> >
>
> Let me try to merge my pile with tglx's pile and come up with something
> halfway sane.

Looks like Thomas' pile is done (well done enough to be queued in TIP).

Can we see your "pile" soon?

-Tony