enable xen livepatch in hypervisor via .config file
qemu-kvm: Directory traversal flaw in 9p virtio backend [CVE-2016-7116]
(#1371400)
qemu: hw: net: Heap overflow in xlnx.xps-ethernetlite [CVE-2016-7161]
(#1379299)
CR0.TS and CR0.EM not always honored for x86 HVM guest [XSA-190,
CVE-2016-7777] (#1381576)