On Fri, Feb 14, 2020 at 16:05:00 +0100, Lentes, Bernd wrote: > Hi, > > i'm playing a bit around with vcpus. > My guest is Windows 10 1903. > This is the excerpt from the config: > ... > <vcpu placement='static' current='2'>4</vcpu> > <vcpus> > <vcpu id='0' enabled='yes' hotpluggable='no'/> > <vcpu id='1' enabled='yes' hotpluggable='yes'/> > <vcpu id='2' enabled='no' hotpluggable='yes'/> > <vcpu id='3' enabled='no' hotpluggable='yes'/> > </vcpus> > ... > > I'm able to hotplug vcpus, but when i want to unplug them i get the following: > > virsh # setvcpus pathway 3 --live > virsh # setvcpus pathway 4 --live > virsh # setvcpus pathway 2 --live > error: internal error: unable to execute QEMU command 'device_del': acpi: device unplug request for not supported device type: qemu64-x86_64-cpu > > Does anyone know why it can't be unplugged ? Sounds like qemu doesn't support unplug of vcpus. Which version of qemu do you use?
