qemu

FORK: QEMU emulator
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target-s390x.rst (997B)

      1 .. _s390x-System-emulator:
      2 
      3 s390x System emulator
      4 ---------------------
      5 
      6 QEMU can emulate z/Architecture (in particular, 64 bit) s390x systems
      7 via the ``qemu-system-s390x`` binary. Only one machine type,
      8 ``s390-ccw-virtio``, is supported (with versioning for compatibility
      9 handling).
     10 
     11 When using KVM as accelerator, QEMU can emulate CPUs up to the generation
     12 of the host. When using the default cpu model with TCG as accelerator,
     13 QEMU will emulate a subset of z13 cpu features that should be enough to run
     14 distributions built for the z13.
     15 
     16 Device support
     17 ==============
     18 
     19 QEMU will not emulate most of the traditional devices found under LPAR or
     20 z/VM; virtio devices (especially using virtio-ccw) make up the bulk of
     21 the available devices. Passthrough of host devices via vfio-pci, vfio-ccw,
     22 or vfio-ap is also available.
     23 
     24 .. toctree::
     25    s390x/vfio-ap
     26    s390x/css
     27    s390x/3270
     28    s390x/vfio-ccw
     29 
     30 Architectural features
     31 ======================
     32 
     33 .. toctree::
     34    s390x/bootdevices
     35    s390x/protvirt