diff options
| author | Cornelia Huck <cohuck@redhat.com> | 2020-03-18 11:39:40 +0100 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2020-03-23 12:36:27 +0100 |
| commit | f58f084e71c6aeee066a30fc87422820e94a6cfc (patch) | |
| tree | 4680a014f6df503f4feb608553317f237759dc14 /docs | |
| parent | 29e0855c5af62bbb0b0b6fed792e004dad92ba95 (diff) | |
Documentation: create/move s390x documentation
Create a subdirectory for s390x under docs/system/ and move the
existing vfio-ap documentation there.
Create an initial document describing s390x system emulation.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20200318103940.1169-1-cohuck@redhat.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/system/index.rst | 1 | ||||
| -rw-r--r-- | docs/system/s390x/vfio-ap.rst (renamed from docs/system/vfio-ap.rst) | 0 | ||||
| -rw-r--r-- | docs/system/target-s390x.rst | 26 | ||||
| -rw-r--r-- | docs/system/targets.rst | 1 |
4 files changed, 27 insertions, 1 deletions
diff --git a/docs/system/index.rst b/docs/system/index.rst index 6e5f20fa13..c0f685b818 100644 --- a/docs/system/index.rst +++ b/docs/system/index.rst @@ -30,7 +30,6 @@ Contents: managed-startup targets security - vfio-ap deprecated build-platforms license diff --git a/docs/system/vfio-ap.rst b/docs/system/s390x/vfio-ap.rst index 3cd84179a2..3cd84179a2 100644 --- a/docs/system/vfio-ap.rst +++ b/docs/system/s390x/vfio-ap.rst diff --git a/docs/system/target-s390x.rst b/docs/system/target-s390x.rst new file mode 100644 index 0000000000..4c8b7cdd66 --- /dev/null +++ b/docs/system/target-s390x.rst @@ -0,0 +1,26 @@ +.. _s390x-System-emulator: + +s390x System emulator +--------------------- + +QEMU can emulate z/Architecture (in particular, 64 bit) s390x systems +via the ``qemu-system-s390x`` binary. Only one machine type, +``s390-ccw-virtio``, is supported (with versioning for compatibility +handling). + +When using KVM as accelerator, QEMU can emulate CPUs up to the generation +of the host. When using the default cpu model with TCG as accelerator, +QEMU will emulate a subset of z13 cpu features that should be enough to run +distributions built for the z13. + +Device support +============== + +QEMU will not emulate most of the traditional devices found under LPAR or +z/VM; virtio devices (especially using virtio-ccw) make up the bulk of +the available devices. Passthrough of host devices via vfio-pci, vfio-ccw, +or vfio-ap is also available. + +.. toctree:: + s390x/vfio-ap + diff --git a/docs/system/targets.rst b/docs/system/targets.rst index eba3111247..0d8f91580a 100644 --- a/docs/system/targets.rst +++ b/docs/system/targets.rst @@ -17,3 +17,4 @@ Contents: target-arm target-m68k target-xtensa + target-s390x |