/usr/bin/qemu-system-s390x kvm s390-ccw-virtio-4.2 s390x /obviously/fake/firmware1.fd /obviously/fake/firmware2.fd rom pflash yes no no off on off gen15a-base z800-base z890.2-base z9EC.2 z13.2 z9BC-base z990.5-base z890.2 z890 z9BC z13 z196 z13s z990.3 z13s-base z9EC gen15a z14ZR1-base z14.2-base z900.3-base z13.2-base z196.2-base zBC12-base z9BC.2-base z900.2-base z9EC.3 zEC12 z900 z114-base zEC12-base z10EC.2 z10EC-base z900.3 z14ZR1 z10BC z10BC.2-base z990.2 z9BC.2 z990 z14 gen15b-base z990.4 max z10EC.2-base gen15a-base z800 zEC12.2 z10EC z990.2-base z900-base z10BC.2 z9EC-base z9EC.3-base z114 z890.3 z196-base z9EC.2-base z196.2 z14.2 z990-base z900.2 z890-base z10EC.3 z14-base z990.4-base z10EC.3-base z10BC-base z13-base z990.3-base zEC12.2-base zBC12 z890.3-base z990.5 gen15b qemu file anonymous memfd disk cdrom floppy lun fdc scsi virtio virtio virtio-transitional virtio-non-transitional sdl vnc egl-headless subsystem default mandatory requisite optional pci scsi default vfio virtio virtio-transitional virtio-non-transitional random egd builtin path handle virtiofs usb pty unix virtio qemu builtin