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Date: Tue, 13 Feb 2018 16:41:51 +0100
From: Borislav Petkov <bp@suse.de>
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Subject: Re: [Qemu-devel] [PATCH v8 05/28] target/i386: add memory
 encryption feature cpuid support
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To: Brijesh Singh <brijesh.ksingh@gmail.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>, Eduardo Habkost <ehabkost@redhat.com>, "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>, Peter Maydell <peter.maydell@linaro.org>, kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel@redhat.com>, Markus Armbruster <armbru@redhat.com>, Peter Crosthwaite <crosthwaite.peter@gmail.com>, Richard Henderson <richard.henderson@linaro.org>, qemu-devel@nongnu.org, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Christian Borntraeger <borntraeger@de.ibm.com>, Alexander Graf <agraf@suse.de>, Stefan Hajnoczi <stefanha@gmail.com>, Cornelia Huck <cornelia.huck@de.ibm.com>, Paolo Bonzini <pbonzini@redhat.com>, Thomas Lendacky <Thomas.Lendacky@amd.com>, Alistair Francis <alistair.francis@xilinx.com>, Bruce Rogers <brogers@suse.com>, Richard Henderson <rth@twiddle.net>

On Tue, Feb 13, 2018 at 09:39:01AM -0600, Brijesh Singh wrote:
> Yes, I think we should be able to avoid creating new CPU model to
> handle this case. I am leaning towards dropping this patch and
> implement logic to populate the CPUID 0x8000_001F only when SEV is
> enabled. This should not require any changes in existing CPU model
> feature flag and live migration of existing guest should work fine.

That sounds even nicer.

Thx.

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Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imend=C3=B6rffer, Jane Smithard, Graham Norton=
, HRB 21284 (AG N=C3=BCrnberg)
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