/usr/bin/qemu-kvm kvm pc-i440fx-2.9 x86_64 /usr/share/edk2/ovmf/OVMF_CODE.fd rom pflash yes no Haswell-noTSX Intel qemu64 qemu32 phenom pentium3 pentium2 pentium n270 kvm64 kvm32 coreduo core2duo athlon Westmere Skylake-Client SandyBridge Penryn Opteron_G5 Opteron_G4 Opteron_G3 Opteron_G2 Opteron_G1 Nehalem IvyBridge Haswell Haswell-noTSX Conroe Broadwell Broadwell-noTSX 486 disk cdrom floppy lun ide fdc scsi virtio usb sata sdl vnc spice subsystem default mandatory requisite optional usb pci scsi