Messages in this thread | | | From | "Nakajima, Jun" <> | Subject | Re: State Component 18 and Palette 1 (Re: [PATCH 16/19] kvm: x86: Introduce KVM_{G|S}ET_XSAVE2 ioctl) | Date | Wed, 22 Dec 2021 23:51:22 +0000 |
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> On Dec 22, 2021, at 6:52 AM, Hansen, Dave <dave.hansen@intel.com> wrote: > > 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?
Yes, with the other clarifications (e.g. setting IA32_XFD[18]).
Thanks, --- Jun
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