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From: Paolo Bonzini <pbonzini@redhat.com>
To: Eduardo Habkost <ehabkost@redhat.com>
Cc: "Marcelo Tosatti" <mtosatti@redhat.com>,
	kvm@vger.kernel.org, qemu-devel@nongnu.org,
	"Igor Mammedov" <imammedo@redhat.com>,
	"Andreas Färber" <afaerber@suse.de>
Subject: Re: [patch 2/2] target-i386: block migration and savevm if invariant tsc is exposed
Date: Tue, 29 Apr 2014 08:22:36 +0200	[thread overview]
Message-ID: <535F452C.1050302@redhat.com> (raw)
In-Reply-To: <20140428192337.GA3363@otherpad.lan.raisama.net>

Il 28/04/2014 21:23, Eduardo Habkost ha scritto:
> > Makes sense.  Basically "-cpu host,migratable=yes" is close to
> > libvirt's host-model and Alex Graf's proposed "-cpu best".  Should we
> > call it "-cpu best" and drop migratability of "-cpu host"?
>
> "-cpu best" is different from the modes above. It means "use the best
> existing CPU model (from the pre-defined table) that can run on this
> host".

Yes, it's not exactly the same.  In practice the behavior should be close.

> And it would have the same ambiguities we found on "-cpu host": if a CPU
> model in the table have invtsc enabled, should it be considered a
> candidate for "-cpu best", or not?

No CPU model in the table should have invtsc enabled. :)

Paolo

  reply	other threads:[~2014-04-29  6:22 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-22 19:10 [patch 0/2] expose invariant tsc flag for kvm guests Marcelo Tosatti
2014-04-22 19:10 ` [patch 1/2] target-i386: support "invariant tsc" flag Marcelo Tosatti
2014-04-23  0:26   ` Paolo Bonzini
2014-04-23  1:11     ` Eduardo Habkost
2014-04-22 19:10 ` [patch 2/2] target-i386: block migration and savevm if invariant tsc is exposed Marcelo Tosatti
2014-04-22 19:28   ` Marcelo Tosatti
2014-04-22 20:38   ` Eduardo Habkost
2014-04-22 21:27     ` Marcelo Tosatti
2014-04-23  1:14       ` Eduardo Habkost
2014-04-24 20:42         ` Paolo Bonzini
2014-04-24 20:57           ` Eduardo Habkost
2014-04-24 22:57             ` Paolo Bonzini
2014-04-24 23:18               ` Eduardo Habkost
2014-04-25 21:08                 ` Paolo Bonzini
2014-04-28 15:46                   ` Eduardo Habkost
2014-04-28 19:06                     ` Paolo Bonzini
2014-04-28 19:23                       ` Eduardo Habkost
2014-04-29  6:22                         ` Paolo Bonzini [this message]
2014-04-29 14:29                           ` Eduardo Habkost
2014-04-23 18:20 ` [patch 0/2] expose invariant tsc flag for kvm guests (v2) Marcelo Tosatti
2014-04-23 18:20   ` [patch 1/2] target-i386: support "invariant tsc" flag Marcelo Tosatti
2014-04-23 19:04     ` Eduardo Habkost
2014-04-23 18:20   ` [patch 2/2] target-i386: block migration and savevm if invariant tsc is exposed Marcelo Tosatti
2014-04-23 19:09     ` Eduardo Habkost
2014-04-23 21:04       ` target-i386: block migration and savevm if invariant tsc is exposed (v3) Marcelo Tosatti
2014-04-24 19:21         ` Eduardo Habkost
2014-04-24 21:32           ` Marcelo Tosatti
2014-04-25 20:38             ` Eduardo Habkost
2014-04-25 22:47               ` [PATCH] savevm: check vmsd for migratability status Marcelo Tosatti
2014-04-28 20:36                 ` Eduardo Habkost
2014-04-30  0:39                   ` [PATCH] savevm: check vmsd for migratability status (v2) Marcelo Tosatti
2014-04-30 15:47                     ` [Qemu-devel] " Eduardo Habkost
2014-04-25 22:47               ` target-i386: block migration and savevm if invariant tsc is exposed (v3) Marcelo Tosatti

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