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Created attachment 1482248[details]
Guest XML
Description of problem:
Boot VM with 2 vhost-user NICs, then check NICs by "# virsh domiflist $domain", fail to get the NICs interface name.
Version-Release number of selected component (if applicable):
libvirt-4.5.0-9.el7.x86_64
qemu-kvm-rhev-2.12.0-13.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1. Boot VM with 2 vhost-user ports, full XML is attached.
2. Check NICs status, fail to get vhostuser ports interface name.
# virsh domiflist rhel7.6
Interface Type Source Model MAC
-------------------------------------------------------
vnet0 bridge switch virtio 88:66:da:5f:dd:01
- vhostuser - virtio 88:66:da:5f:dd:02
- vhostuser - virtio 88:66:da:5f:dd:03
Actual results:
Fail to get vhostuser ports interface name by "# virsh domiflist $domain".
Expected results:
Should get vhostuser ports interface name by "# virsh domiflist $domain".
Additional info:
1. This should be a regression bug.
Seems it looks good with libvirt-3.7.0-2.el7.x86_64. See Bug 1461270 Comment 6.
I missed an option <target dev='vhostuser0'/>, after adding this option like below, everything works well, so this is not a bug.
<interface type='vhostuser'>
<mac address='88:66:da:5f:dd:02'/>
<source type='unix' path='/tmp/vhostuser0.sock' mode='server'/>
<target dev='vhostuser0'/>
<model type='virtio'/>
<driver name='vhost' queues='2' rx_queue_size='512' iommu='on' ats='on'/>
<address type='pci' domain='0x0000' bus='0x06' slot='0x00' function='0x0'/>
</interface>
# virsh domiflist rhel7.6
Interface Type Source Model MAC
-------------------------------------------------------
vnet0 bridge switch virtio 88:66:da:5f:dd:01
vhostuser0 vhostuser - virtio 88:66:da:5f:dd:02
vhostuser1 vhostuser - virtio 88:66:da:5f:dd:03
Close this bug as NOTABUG. Sorry for the confusion.