On 10/22/2015 4:52 AM, Alexander Duyck wrote:
> Also have you even considered the MSI-X configuration on the VF?  I
> haven't seen anything anywhere that would have migrated the VF's MSI-X
> configuration from BAR 3 on one system to the new system.

MSI-X migration is done by Hypervisor(Qemu).
Following link is my Qemu patch to do that.
http://marc.info/?l=kvm&m=144544706530484&w=2