/usr/bin/qemu-system-x86_64 kvm pc-1.2 x86_64 /usr/share/AAVMF/AAVMF_CODE.fd /usr/share/OVMF/OVMF_CODE.fd rom pflash yes no disk cdrom floppy lun ide fdc scsi virtio usb subsystem default mandatory requisite optional usb pci scsi default kvm vfio