If a 8021.Qbh network device supports SRIOV and its VF is being used in pci passthrough mode, when the guest is shutdown or destroyed, the PF inteface is also brought down. qemuDomainHostdevNetConfigRestore() finds out the PF for provided hostdev (which is VF) and passes it to virNetDevPortProfileDisassociate() as linkdev. Later, linkdev gets passed to virNetDevSetOnline() where the interface is brought down by clearing IFF_UP flag. Bringing down a PF, when only VF is being brought down is not expected behavior. This patch adds a check so that virNetDevSetOnline() is called only for PF and not if device is a VF. Signed-off-by: Nishank Trivedi <nistrive(a)cisco.com&gt; --- src/util/virnetdevvportprofile.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/util/virnetdevvportprofile.c b/src/util/virnetdevvportprofile.c index 5213378..e231fca 100644 --- a/src/util/virnetdevvportprofile.c +++ b/src/util/virnetdevvportprofile.c @@ -1235,7 +1235,8 @@ virNetDevVPortProfileDisassociate(const char *macvtap_ifname, /* avoid disassociating twice */ if (vmOp == VIR_NETDEV_VPORT_PROFILE_OP_MIGRATE_IN_FINISH) break; - ignore_value(virNetDevSetOnline(linkdev, false)); + if (vf < 0) + ignore_value(virNetDevSetOnline(linkdev, false)); rc = virNetDevVPortProfileOp8021Qbh(linkdev, macvtap_macaddr, vf, virtPort, NULL, VIR_NETDEV_VPORT_PROFILE_LINK_OP_DISASSOCIATE);