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Re: [PATCH] target/i386: Add CPU model versions supporting 'xsaves'


From: Eduardo Habkost
Subject: Re: [PATCH] target/i386: Add CPU model versions supporting 'xsaves'
Date: Tue, 13 Apr 2021 15:39:10 -0400

On Mon, Apr 12, 2021 at 09:39:52AM +0200, Vitaly Kuznetsov wrote:
> Hyper-V 2016 refuses to boot on Skylake+ CPU models because they lack
> 'xsaves'/'vmx-xsaves' features and this diverges from real hardware. The
> same issue emerges with AMD "EPYC" CPU model prior to version 3 which got
> 'xsaves' added. EPYC-Rome/EPYC-Milan CPU models have 'xsaves' enabled from
> the very beginning so the comment blaming KVM to explain why other CPUs
> lack 'xsaves' is likely outdated.
> 
> Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>

I'm queueing this for 6.1.  Thanks!

-- 
Eduardo




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