Re: [PATCH 3/7] x86/fpu/xstate: Add supervisor PASID state for ENQCMD feature
From: Thomas Gleixner
Date: Sun Apr 26 2020 - 07:17:35 EST
Fenghua Yu <fenghua.yu@xxxxxxxxx> writes:
> From: Yu-cheng Yu <yu-cheng.yu@xxxxxxxxx>
>
> The IA32_PASID MSR is used when a task submits work via the ENQCMD
> instruction.
Is used?
> The per task MSR is stored in the task's supervisor FPU
per task MSR? Lot's of MSRs ....
> PASID state and is context switched by XSAVES/XRSTORS.
>