Hi Wangpan, the exact config settings of the added feature did not come up on devstack. I tried with virt-inst to make sure its not devstack thing but still I got permission error. I have to fix libvirt-qemu apparmor settings to make the VM boot up. I suggest community to consider the following. I will propose BP on similar lines Source path, target name must be configurable to allow other use cases like access to appliance VMs from host so that configuration can be pushed and run time status can be fetched. Fix libvirt apparmor issues or document the settings. On Wed, Sep 25, 2013 at 4:03 AM, wangpan