[libvirt] Live migration woes

Hi, is anyone using libvirt-git and qemu-kvm post-0.11 and can live migrate VMs successfully for- and backwards? qemu-kvm-0.11 seems to be the latest release were live migration works, and I'm trying to figure out if its a kvm or libvirt problem, since there were other things (balloon parameter f.e.) that were changed with qemu-kvm-0.12 and caused troubles when using libvirt. thx,t