From: Paolo Bonzini <pbonzini@redhat.com>
To: Eduardo Habkost <ehabkost@redhat.com>,
"Daniel P. Berrange" <berrange@redhat.com>
Cc: qemu-devel@nongnu.org, Richard Henderson <rth@twiddle.net>,
"Richard W.M. Jones" <rjones@redhat.com>
Subject: Re: [Qemu-devel] [PATCH RFC] i386: expose "TCGTCGTCGTCG" in the 0x40000000 CPUID leaf
Date: Fri, 5 May 2017 09:45:48 +0200 [thread overview]
Message-ID: <5014609b-b009-5919-185c-abb96b030c97@redhat.com> (raw)
In-Reply-To: <20170504184241.GB3482@thinpad.lan.raisama.net>
On 04/05/2017 20:42, Eduardo Habkost wrote:
>
>> NB2, for KVM, we added a flag for '-cpu kvm=off' to let you
>> hide the KVMKVMKVM signature from guests. Presumably we should
>> add a 'tcg=off' flag for the same reason ?
> I don't like "kvm=off" because it sounds like it disables KVM
> completely. "tcg=off" would be misleading as well.
>
> What about a generic "hypervisor-cpuid=off" property?
Yeah, it should also disable the CPUID_EXT_HYPERVISOR feature, in fact.
Paolo
next prev parent reply other threads:[~2017-05-05 7:45 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-04 14:56 [Qemu-devel] [PATCH RFC] i386: expose "TCGTCGTCGTCG" in the 0x40000000 CPUID leaf Daniel P. Berrange
2017-05-04 18:42 ` Eduardo Habkost
2017-05-05 7:45 ` Paolo Bonzini [this message]
2017-05-05 11:46 ` Daniel P. Berrange
2017-05-05 16:46 ` Eduardo Habkost
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