How to Prepare a Domain With an SR-IOV Ethernet Virtual Function for Migration
When you create an SR-IOV Ethernet virtual function or assign it to a guest domain, you must ensure that the virtual function has a user-assigned virtual function name by specifying it as the name
property value.
In addition, the domain to be migrated must be configured with a multipath route for the SR-IOV Ethernet virtual function and a virtual network device. Both of these virtual interfaces must be able to access the same network.