[libvirt] [PATCH] xen: prefer XS in xenUnifiedListDomains

Yeha, this is almost certainly just another example of XenD not properly cleaning up / destroying domains. If you still have a machine which shows this behaviour, then I'd recommend trying this change to our Xen impl In xen_unified.c, find the method xenUnifiedListDomains and make it first call xenStoreListDomains() and then fallback to trying HV & XenD drivers. If we're lucky this will help....