[libvirt] <interface type='hostdev'>vf configuration cleanup when VM is delete

Hi, I have a setup with libvirt 1.3.0 and OpenStack trunk. Before launched the VM ip link command show the following VF mac/vlan configuration [1] When I launch a VM with <interface type='hostdev'> via openstack api (OpenStack direct port) I can see that the VF get the mac/vlan according to libvrit xml [2] and ip link command [3], but when I delete the VM the mac/vlan config are still shown as in [3] and not restored to [1] Shouldn't libvirt restore the mac/vlan to [1]. The same problem exists when using <interface type='direct'> (OpenStack macvtap port) but just for the MAC configuration of the VF. [1] - 24: enp3s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovs-system state UP mode DEFAULT group default qlen 1000 link/ether e4:1d:2d:a5:f1:22 brd ff:ff:ff:ff:ff:ff vf 0 MAC 00:00:00:00:00:00, spoof checking off, link-state auto vf 1 MAC 00:00:00:00:00:00, spoof checking off, link-state auto vf 2 MAC 00:00:00:00:00:00, spoof checking off, link-state auto vf 3 MAC 00:00:00:00:00:00, spoof checking off, link-state auto [2] - <interface type='hostdev' managed='yes'> <mac address=' fa:16:3e:11:af:fe '/> <driver name='kvm'/> <source> <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x7'/> </source> <vlan> <tag id='190'/> </vlan> <alias name='hostdev0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </interface> [3] 24: enp3s0f0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq master ovs-system state UP mode DEFAULT group default qlen 1000 link/ether e4:1d:2d:a5:f1:22 brd ff:ff:ff:ff:ff:ff vf 0 MAC 00:00:00:00:00:00, spoof checking off, link-state auto vf 1 MAC 00:00:00:00:00:00, spoof checking off, link-state auto vf 2 MAC 00:00:00:00:00:00, spoof checking off, link-state auto vf 3 MAC fa:16:3e:11:af:fe, vlan 190, spoof checking off, link-state enable