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From: Paolo Bonzini <pbonzini@redhat.com>
To: "Andreas Färber" <afaerber@suse.de>
Cc: Eduardo Habkost <ehabkost@redhat.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	qemu-devel@nongnu.org, Bandan Das <bsd@redhat.com>,
	Anthony Liguori <aliguori@amazon.com>,
	Igor Mammedov <imammedo@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] target-i386: enable x2apic by default on more recent CPU models
Date: Tue, 21 Jan 2014 11:03:15 +0100	[thread overview]
Message-ID: <52DE45E3.5010208@redhat.com> (raw)
In-Reply-To: <52DD9F77.4040904@suse.de>

Il 20/01/2014 23:13, Andreas Färber ha scritto:
> I don't like the argument that we can put arbitrary stuff in our model
> definitions and rely on TCG not having implemented it to make it
> correct. Is x2apic something that TCG can never implement for some
> reason? Then that needs a better explanation. Otherwise, is there no
> criteria we can add this flag for when kvm_enabled()?

We already do that for other bits (e.g. XSAVE/OSXSAVE), and in fact it
is the same that we do for KVM: the KVM_GET_SUPPORTED_CPUID result is
used to trim the generic feature bits.

Paolo

  reply	other threads:[~2014-01-21 10:03 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-20 14:36 [Qemu-devel] [PATCH] target-i386: enable x2apic by default on more recent CPU models Eduardo Habkost
2014-01-20 16:27 ` Andreas Färber
2014-01-20 16:50   ` Eduardo Habkost
2014-01-20 22:18     ` Andreas Färber
2014-01-20 22:13 ` Andreas Färber
2014-01-21 10:03   ` Paolo Bonzini [this message]
2014-01-21 14:06     ` Eduardo Habkost
2014-01-21 15:51     ` Andreas Färber
2014-01-21 16:13       ` Paolo Bonzini
2014-02-03 19:01         ` Eduardo Habkost
2014-02-04 14:12           ` Andreas Färber
2014-02-06 14:33             ` [Qemu-devel] Enabling x2apic by default in KvM (was Re: [PATCH] target-i386: enable x2apic by default on more recent CPU models) Eduardo Habkost
2014-02-17 13:58             ` [Qemu-devel] [PATCH] target-i386: enable x2apic by default on more recent CPU models Michael S. Tsirkin
2014-02-17 14:47               ` Eduardo Habkost
2014-02-17 16:17               ` Andreas Färber
2014-02-17 17:27                 ` Eduardo Habkost
2014-01-21 16:20       ` Eduardo Habkost
2014-01-21 14:06   ` Eduardo Habkost
  -- strict thread matches above, loose matches on Subject: below --
2013-09-20 19:15 [Qemu-devel] [PATCH] target-i386: Enable " Eduardo Habkost
2013-09-22  6:36 ` Gleb Natapov

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