Re: [patch 00/41] x86/fpu: Spring cleaning and PKRU sanitizing

[Thomas Gleixner]

On Wed, Jun 16 2021 at 13:55, Dave Hansen wrote:
> On 6/11/21 5:24 PM, Thomas Gleixner wrote:
>> Making the kernel to pretend that all of this is consistent under all
>> circumstances is a futile attempt to ignore reality.
>> 
>> This inconsistency can only be fixed in hardware/ucode. End of story.
>
> I agree with this.  If it's going to be fixed, the kernel simply doesn't
> have the tools to do it.  We either need new ISA or new hardware/ucode.
>
> I'm just not convinced it's worth fixing for PKRU.

Me neither.