xen kvm kqemu qemu lxc openvz test i686 x86_64 ia64 xenpv xenner xen linux hvm i686 x86_64 pc isapc mips mips sparc sun4m ppc g3bw mac99 prep localtime utc hd fd cdrom network floppy disk cdrom file block ide virtio fdc xen bridge ethernet network user sdl vnc yes no destroy restart preserve rename-restart dev file pipe unix tcp udp null stdio vc pty sb16 es1370 pcspk tablet mouse ps2 usb xen [0-9]+ [0-9]+ 1 -1 [0-9]+ 4000 [A-Za-z0-9_.:/\+\-&-]+ [a-zA-Z0-9_\+\-]+ [a-fA-F0-9]{32} [a-fA-F0-9]{8}\-([a-fA-F0-9]{4}\-){3}[a-fA-F0-9]{12} [a-zA-Z0-9_\+\-%./&]+ /[a-zA-Z0-9_\+\-%./&]+ /[a-zA-Z0-9_\+\-%/]+ [a-zA-Z0-9_\-:./]+ ([a-fA-F0-9]{2}:){5}[a-fA-F0-9]{2} ([0-2]?[0-9]?[0-9]\.){3}[0-2]?[0-9]?[0-9]