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>
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@ -101,7 +101,8 @@ F: include/hw/watchdog/wdt_diag288.h
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F: pc-bios/s390-ccw/
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F: pc-bios/s390-ccw/
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F: pc-bios/s390-ccw.img
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F: pc-bios/s390-ccw.img
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F: target/s390x/
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F: target/s390x/
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F: docs/vfio-ap.txt
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F: docs/system/target-s390x.rst
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F: docs/system/s390x/
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F: tests/migration/s390x/
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F: tests/migration/s390x/
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K: ^Subject:.*(?i)s390x?
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K: ^Subject:.*(?i)s390x?
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T: git https://github.com/cohuck/qemu.git s390-next
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T: git https://github.com/cohuck/qemu.git s390-next
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@ -1611,7 +1612,7 @@ F: hw/s390x/ap-bridge.c
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F: include/hw/s390x/ap-device.h
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F: include/hw/s390x/ap-device.h
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F: include/hw/s390x/ap-bridge.h
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F: include/hw/s390x/ap-bridge.h
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F: hw/vfio/ap.c
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F: hw/vfio/ap.c
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F: docs/system/vfio-ap.rst
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F: docs/system/s390x/vfio-ap.rst
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L: qemu-s390x@nongnu.org
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L: qemu-s390x@nongnu.org
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vhost
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vhost
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@ -30,7 +30,6 @@ Contents:
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managed-startup
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managed-startup
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targets
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targets
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security
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security
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vfio-ap
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deprecated
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deprecated
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build-platforms
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build-platforms
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license
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license
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26
docs/system/target-s390x.rst
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26
docs/system/target-s390x.rst
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@ -0,0 +1,26 @@
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.. _s390x-System-emulator:
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s390x System emulator
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---------------------
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QEMU can emulate z/Architecture (in particular, 64 bit) s390x systems
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via the ``qemu-system-s390x`` binary. Only one machine type,
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``s390-ccw-virtio``, is supported (with versioning for compatibility
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handling).
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When using KVM as accelerator, QEMU can emulate CPUs up to the generation
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of the host. When using the default cpu model with TCG as accelerator,
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QEMU will emulate a subset of z13 cpu features that should be enough to run
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distributions built for the z13.
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Device support
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==============
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QEMU will not emulate most of the traditional devices found under LPAR or
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z/VM; virtio devices (especially using virtio-ccw) make up the bulk of
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the available devices. Passthrough of host devices via vfio-pci, vfio-ccw,
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or vfio-ap is also available.
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.. toctree::
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s390x/vfio-ap
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@ -17,3 +17,4 @@ Contents:
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target-arm
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target-arm
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target-m68k
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target-m68k
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target-xtensa
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target-xtensa
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target-s390x
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