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This is the same bug as 1630164 which deals with both Source and Interface name. Closing is as a duplicate.
*** This bug has been marked as a duplicate of bug 1630164 ***
Description of problem: virsh domiflist return NULL for the vhostuser interface source Version-Release number of selected component (if applicable): libvirt-4.5.0-9.el7.x86_64 qemu-kvm-rhev-2.12.0-15.el7.x86_64 Test steps: 1. Prepare guest with xml: <memoryBacking> <hugepages> <page size='2048' unit='KiB'/> </hugepages> </memoryBacking> ...... <cpu mode='custom' match='exact' check='full'> <model fallback='forbid'>Broadwell</model> ...... <numa> <cell id='0' cpus='0-1' memory='1048576' unit='KiB' memAccess='shared'/> </numa> </cpu> ...... <interface type='vhostuser'> <mac address='52:54:00:93:51:dd'/> <source type='unix' path='/var/run/openvswitch/vhost-user1' mode='client'/> <model type='virtio'/> <alias name='net0'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/> </interface> 2. Start the guests with vhostuser interface # virsh start vhostuser1 Domain vhostuser1 started # virsh list --all Id Name State ---------------------------------------------------- 25 vhostuser1 running 3. Check the virsh domiflist: no source is listed # virsh domiflist vhostuser1 Interface Type Source Model MAC ------------------------------------------------------- vhost-user1 vhostuser - virtio 52:54:00:93:51:dd Actual results: In step3, the virsh domiflist return NULL for source Expected results: In step3, the virsh domiflist return the vhostuser source