Re: [Xen-devel] [PATCH] x86/cpuid: Enable new SSE/AVX/AVX512 cpu features

[Zhong Yang <yang.zhong@xxxxxxxxx>]

On Tue, Nov 07, 2017 at 01:11:02AM -0700, Jan Beulich wrote:
> >>> On 07.11.17 at 07:28, <yang.zhong@xxxxxxxxx> wrote:
> >   For those new instructions, you mean i also need to support those 
> >   three instructions(GFNI,VAES and VPCLMULQDQ) in x86_emulate() in PV? 
> 
> Why three instructions? And why PV? I'm afraid I'm confused, and
> hence I'm afraid simply saying "yes" to your question might not be
> enough.
> 
> Jan
  
  Hello Jan,

  Sorry for my unclear answer!

  My understanding is i need to implement x86 emulator for legacy and VEX 
  CPU features(GFNI,VAES and VPCLMULQDQ), right? 

  As for this patch, whether it is suitable for merge into Xen upstream
  this time? 

  x86 emulator patches for some intel's CPU features are in our plan and we
  will send those related patches in future. 

  Regards,

  Yang  
  


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