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From: Avi Kivity <avi@redhat.com>
To: "Daniel P. Berrange" <berrange@redhat.com>
Cc: Chris Wright <chrisw@redhat.com>,
	qemu-devel@nongnu.org, Alexander Graf <agraf@suse.de>,
	kvm@vger.kernel.org
Subject: [Qemu-devel] Re: KVM call agenda for Jan 26
Date: Tue, 26 Jan 2010 15:45:06 +0200	[thread overview]
Message-ID: <4B5EF1E2.5080900@redhat.com> (raw)
In-Reply-To: <20100126133325.GI5366@redhat.com>

On 01/26/2010 03:33 PM, Daniel P. Berrange wrote:
>
>> Me too, especially as the whole stack is involved, and qemu is the
>> topmost part from our perspective (no doubt libvirt will want to
>> integrate that functionality as well).
>>      
> FYI, libvirt already exposes this kind of functionality. The API call
> virConnectGetCapabilities() / command line "virsh capabilities" command
> tells you about what the virtualization host is able to support. It can
> tell you what architectures are supported, by which binaries. What
> machine types are available. Whether KVM or KQEMU acceleration are
> present. What CPU model / flags are on the host. What NUMA topology is
> available. etc etc
>
>    

Great.  Note that for a cpu flag to be usable in a guest, it needs to be 
supported by both kvm.ko and qemu, so reporting /proc/cpuinfo is 
insufficient.  There are also synthetic cpu flags (kvm paravirt 
features, x2apic) that aren't present in /proc/cpuinfo.


-- 
error compiling committee.c: too many arguments to function

  parent reply	other threads:[~2010-01-26 13:45 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-01-26  6:49 [Qemu-devel] KVM call agenda for Jan 26 Chris Wright
2010-01-26  9:09 ` [Qemu-devel] " Alexander Graf
2010-01-26 13:11   ` Anthony Liguori
2010-01-26 13:17     ` Avi Kivity
2010-01-26 13:18     ` Alexander Graf
2010-01-26 13:24       ` Avi Kivity
2010-01-26 13:33         ` Daniel P. Berrange
2010-01-26 13:37           ` Alexander Graf
2010-01-26 13:45           ` Avi Kivity [this message]
2010-01-26 14:13         ` Anthony Liguori
2010-01-26 14:15           ` Avi Kivity
2010-01-26 14:22             ` Anthony Liguori
2010-01-26 14:26               ` Avi Kivity
2010-01-26 14:32                 ` Anthony Liguori
2010-01-26 14:37                   ` Avi Kivity
2010-01-26 14:42                     ` Alexander Graf
2010-01-26 14:47                       ` Avi Kivity
2010-01-26 14:50                         ` Alexander Graf
2010-01-26 14:59                           ` Anthony Liguori
2010-01-26 14:42                     ` Anthony Liguori
2010-01-26 14:44                       ` Avi Kivity

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