can hotplug vcpus to running Windows 10 guest, but not unplug

Lentes, Bernd bernd.lentes at
Fri Feb 14 15:05:00 UTC 2020


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>
    <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'/>

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 ?




Bernd Lentes 
Institute for Metabolism and Cell Death (MCD) 
Building 35.34 - Raum 208 
HelmholtzZentrum münchen 
bernd.lentes at 
phone: +49 89 3187 1241 
phone: +49 89 3187 3827 
fax: +49 89 3187 2294 

Perfekt ist wer keine Fehler macht 
Also sind Tote perfekt
Helmholtz Zentrum München

Helmholtz Zentrum Muenchen
Deutsches Forschungszentrum fuer Gesundheit und Umwelt (GmbH)
Ingolstaedter Landstr. 1
85764 Neuherberg
Aufsichtsratsvorsitzende: Prof. Dr. Veronika von Messling
Geschaeftsfuehrung: Prof. Dr. med. Dr. h.c. Matthias Tschoep, Kerstin Guenther
Registergericht: Amtsgericht Muenchen HRB 6466
USt-IdNr: DE 129521671

More information about the libvirt-users mailing list