Re: [Qemu-devel] [PATCH 2/7] Convert pc cpu to qdev

[Gleb Natapov <gleb@redhat.com>]

On Wed, Mar 14, 2012 at 02:49:59PM +0100, Vasilis Liaskovitis wrote:
> Hi,
> 
> On Wed, Mar 14, 2012 at 09:37:18AM +0100, Igor Mammedov wrote:
> > On 03/14/2012 08:59 AM, Lai Jiangshan wrote:
> > >not accepted, so I don't know how to take part in.
> > 
> > As I see it, there is not much to do from cpu hot-plug perspective.
> > It's just a matter of adaptation QOM-ified cpus for usage from
> > qdev device_add, and I'm working on it.
> > However, there is a lot to be done in cpu unplug area:
> >   - host side: there is unaccepted patches to destroy vcpu
> >     during VM-lifecycle. They are still need to be worked on:
> >      "[Qemu-devel] [PATCH 0] A series patches for kvm&qemu to enable vcpu destruction in kvm"
> >   - linux guest side: kernel can receive ACPI request to unplug cpu,
> >     but does nothing with it (last time I've tested it with 3.2 kernel),
> >     You might wish to look at following mail threads:
> >       https://lkml.org/lkml/2011/9/30/18
> >       http://lists.gnu.org/archive/html/qemu-devel/2011-10/msg02254.html
> 
> I also plan to resubmit the qemu-side of ACPI cpu unplug request:
> http://lists.nongnu.org/archive/html/qemu-devel/2012-01/msg03037.html
> so that they work independently of the "host side" patches mentioned above. 
> 
> It would be great for the QOMify/hotplug/icc patches to be accepted soon,
> since this would make unplug testing/development more straightoward.
> 
On a different note, are your going to continue working on your memory hot plug series?
I am going to look at it now.

--
			Gleb.