Re: [patch 0/7] x86/fpu: Cure supervisor mode (ENQCMD) fallout

From: Fenghua Yu
Date: Mon Mar 28 2022 - 18:43:24 EST


Hi, Thomas,

On Thu, Mar 24, 2022 at 02:47:07PM +0100, Thomas Gleixner wrote:
> It builds, boots on host and guest, but is not yet extensively tested.
> Testing with a AMX + PASID enabled machine has not been done at all as I
> don't have easy access to such a beast.

I run many copies of dsa_test [1] (i.e. multi-threading and multi-tasking)
to stressfully exercise FPU PASID state context switch on native.
No issue is found so far.

1. https://github.com/intel/idxd-config

Thanks.

-Fenghua