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.