Re: State Component 18 and Palette 1 (Re: [PATCH 16/19] kvm: x86: Introduce KVM_{G|S}ET_XSAVE2 ioctl)

Dave Hansen
2021-12-22T14:52:05Z

On 12/20/21 9:54 AM, Nakajima, Jun wrote:
>> So, I hope that save state 18 will be frozen to 8k. In that case,
>> and if palette 1 is frozen to the same values as today,
>> implementing migration will not be a problem; it will be
>> essentially the same as SSE->AVX (horizontal extension of existing
>> registers) and/or AVX->AVX512 (both horizontal and vertical
>> extension).
>
> I would like to confirm that the state component 18 will remain 8KB
> and palette 1 will remain the same.

Is that an architectural statement that will soon be making its way into
the SDM?