firewall 16b6ed39-fbd3-461b-9ffa-a3bcba610a56 Debian 9 786432 786432 1 /machine hvm /usr/share/edk2/ovmf/OVMF_CODE.fd /var/lib/libvirt/qemu/nvram/firewall_VARS.fd Broadwell-noTSX destroy restart destroy /usr/bin/qemu-kvm