1f58f084eSCornelia Huck.. _s390x-System-emulator: 2f58f084eSCornelia Huck 3f58f084eSCornelia Hucks390x System emulator 4f58f084eSCornelia Huck--------------------- 5f58f084eSCornelia Huck 6f58f084eSCornelia HuckQEMU can emulate z/Architecture (in particular, 64 bit) s390x systems 7f58f084eSCornelia Huckvia the ``qemu-system-s390x`` binary. Only one machine type, 8f58f084eSCornelia Huck``s390-ccw-virtio``, is supported (with versioning for compatibility 9f58f084eSCornelia Huckhandling). 10f58f084eSCornelia Huck 11f58f084eSCornelia HuckWhen using KVM as accelerator, QEMU can emulate CPUs up to the generation 12f58f084eSCornelia Huckof the host. When using the default cpu model with TCG as accelerator, 13f58f084eSCornelia HuckQEMU will emulate a subset of z13 cpu features that should be enough to run 14f58f084eSCornelia Huckdistributions built for the z13. 15f58f084eSCornelia Huck 16f58f084eSCornelia HuckDevice support 17f58f084eSCornelia Huck============== 18f58f084eSCornelia Huck 19f58f084eSCornelia HuckQEMU will not emulate most of the traditional devices found under LPAR or 20f58f084eSCornelia Huckz/VM; virtio devices (especially using virtio-ccw) make up the bulk of 21f58f084eSCornelia Huckthe available devices. Passthrough of host devices via vfio-pci, vfio-ccw, 22f58f084eSCornelia Huckor vfio-ap is also available. 23f58f084eSCornelia Huck 24f58f084eSCornelia Huck.. toctree:: 25f58f084eSCornelia Huck s390x/vfio-ap 26f31270d4SCornelia Huck s390x/css 27*61a3d5edSCornelia Huck s390x/3270 28f58f084eSCornelia Huck 2942fc5eaeSJanosch FrankArchitectural features 3042fc5eaeSJanosch Frank====================== 3142fc5eaeSJanosch Frank 3242fc5eaeSJanosch Frank.. toctree:: 3342fc5eaeSJanosch Frank s390x/protvirt 34