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

[Anthony Liguori <anthony@codemonkey.ws>]

On 03/14/2012 10:23 AM, Gleb Natapov wrote:
> 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.

Memory hotplug..  that's going to be fun :-)

Regards,

Anthony Liguori

>
> --
> 			Gleb.