From: Eduardo Habkost <ehabkost@redhat.com>
To: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
Richard Henderson <richard.henderson@linaro.org>,
qemu-devel@nongnu.org, Wen Pu <puwen@hygon.cn>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>
Subject: Re: [PATCH] target/i386: Add CPU model versions supporting 'xsaves'
Date: Tue, 13 Apr 2021 15:39:10 -0400 [thread overview]
Message-ID: <20210413193910.72bvoyhbw2ma5nf3@habkost.net> (raw)
In-Reply-To: <20210412073952.860944-1-vkuznets@redhat.com>
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 lack 'xsaves' is likely outdated.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
prev parent reply other threads:[~2021-04-13 19:39 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 7:39 [PATCH] target/i386: Add CPU model versions supporting 'xsaves' Vitaly Kuznetsov
2021-04-13 19:39 ` Eduardo Habkost [this message]
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