Re: [RFC PATCH 1/7] x86: Fix the 64-byte boundary enumeration for extended state

[Yang Zhong]

On Tue, Jan 18, 2022 at 01:37:20PM +0100, Paolo Bonzini wrote:
> On 1/11/22 03:22, Yang Zhong wrote:
> >   Thanks Kevin, I will update this in next version.
> 
> Also:
> 
>     The extended state subleaves (EAX=0Dh, ECX=n, n>1).ECX[1]
>     indicate whether the extended state component locates
>     on the next 64-byte boundary following the preceding state
>     component when the compacted format of an XSAVE area is
>     used.
> 
>     Right now, they are all zero because no supported component
>     needed the bit to be set, but the upcoming AMX feature will
>     use it.  Fix the subleaves value according to KVM's supported
>     cpuid.
>
      Thanks Paolo, I will update this in new version.

      Yang
      
> Paolo