On 08/09/2013 09:01 AM, Thomas Stein wrote:
Meanwhile, you can try using 'setvcpus gentookvm --guest 4' to use the guest agent (assuming you have qemu-ga running in the guest, and the proper plumbing of the guest agent channel in your domain XML) to use the guest to take vcpus on- or offline.
Tried that with no luck so far.
virsh # setvcpus gentookvm --guest 2 error: internal error: unable to execute QEMU agent command 'guest-get-vcpus': The command guest-get-vcpus has not been found
It's qemu-1.4.2 and libvirt-1.1.1.
There's your problem. Guest-agent support for hotplug wasn't introduced until qemu 1.5. Upgrade at least your qemu-ga in your guest, and probably also the qemu running your guest. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org