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Miscellaneous patches for 2021-05-12

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Merge remote-tracking branch 'remotes/armbru/tags/pull-misc-2021-05-12' into staging

Miscellaneous patches for 2021-05-12

# gpg: Signature made Wed 12 May 2021 17:22:15 BST
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-misc-2021-05-12:
  Drop the deprecated unicore32 target
  Drop the deprecated lm32 target
  block: Drop the sheepdog block driver
  Remove the deprecated moxie target
  monitor/qmp: fix race on CHR_EVENT_CLOSED without OOB

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2021-05-13 20:13:24 +01:00
commit 2d3fc4e2b0
208 changed files with 78 additions and 22410 deletions
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33
docs/system/deprecated.rst
View file

@ -198,30 +198,6 @@ from Linux upstream kernel, declare it deprecated.
System emulator CPUS
--------------------
``moxie`` CPU (since 5.2.0)
'''''''''''''''''''''''''''
The ``moxie`` guest CPU support is deprecated and will be removed in
a future version of QEMU. It's unclear whether anybody is still using
CPU emulation in QEMU, and there are no test images available to make
sure that the code is still working.
``lm32`` CPUs (since 5.2.0)
'''''''''''''''''''''''''''
The ``lm32`` guest CPU support is deprecated and will be removed in
a future version of QEMU. The only public user of this architecture
was the milkymist project, which has been dead for years; there was
never an upstream Linux port.
``unicore32`` CPUs (since 5.2.0)
''''''''''''''''''''''''''''''''
The ``unicore32`` guest CPU support is deprecated and will be removed in
a future version of QEMU. Support for this CPU was removed from the
upstream Linux kernel, and there is no available upstream toolchain
to build binaries for it.
``Icelake-Client`` CPU Model (since 5.2.0)
''''''''''''''''''''''''''''''''''''''''''
@ -293,15 +269,6 @@ The above, converted to the current supported format::
json:{"file.driver":"rbd", "file.pool":"rbd", "file.image":"name"}
``sheepdog`` driver (since 5.2.0)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The ``sheepdog`` block device driver is deprecated. The corresponding upstream
server project is no longer actively maintained. Users are recommended to switch
to an alternative distributed block device driver such as RBD. The
``qemu-img convert`` command can be used to liberate existing data by moving
it out of sheepdog volumes into an alternative storage backend.
linux-user mode CPUs
--------------------

18
docs/system/device-url-syntax.rst.inc
View file

@ -85,24 +85,6 @@ These are specified using a special URL syntax.
Currently authentication must be done using ssh-agent. Other
authentication methods may be supported in future.
``Sheepdog``
Sheepdog is a distributed storage system for QEMU. QEMU supports
using either local sheepdog devices or remote networked devices.
Syntax for specifying a sheepdog device
::
sheepdog[+tcp|+unix]://[host:port]/vdiname[?socket=path][#snapid|#tag]
Example
.. parsed-literal::
|qemu_system| --drive file=sheepdog://192.0.2.1:30000/MyVirtualMachine
See also https://sheepdog.github.io/sheepdog/.
``GlusterFS``
GlusterFS is a user space distributed file system. QEMU supports the
use of GlusterFS volumes for hosting VM disk images using TCP, Unix

69
docs/system/qemu-block-drivers.rst.inc
View file

@ -547,75 +547,6 @@ also available. Here are some example of the older syntax:
|qemu_system| linux2.img -hdb nbd:unix:/tmp/my_socket
|qemu_system| -cdrom nbd:localhost:10809:exportname=debian-500-ppc-netinst
Sheepdog disk images
~~~~~~~~~~~~~~~~~~~~
Sheepdog is a distributed storage system for QEMU. It provides highly
available block level storage volumes that can be attached to
QEMU-based virtual machines.
You can create a Sheepdog disk image with the command:
.. parsed-literal::
qemu-img create sheepdog:///IMAGE SIZE
where *IMAGE* is the Sheepdog image name and *SIZE* is its
size.
To import the existing *FILENAME* to Sheepdog, you can use a
convert command.
.. parsed-literal::
qemu-img convert FILENAME sheepdog:///IMAGE
You can boot from the Sheepdog disk image with the command:
.. parsed-literal::
|qemu_system| sheepdog:///IMAGE
You can also create a snapshot of the Sheepdog image like qcow2.
.. parsed-literal::
qemu-img snapshot -c TAG sheepdog:///IMAGE
where *TAG* is a tag name of the newly created snapshot.
To boot from the Sheepdog snapshot, specify the tag name of the
snapshot.
.. parsed-literal::
|qemu_system| sheepdog:///IMAGE#TAG
You can create a cloned image from the existing snapshot.
.. parsed-literal::
qemu-img create -b sheepdog:///BASE#TAG sheepdog:///IMAGE
where *BASE* is an image name of the source snapshot and *TAG*
is its tag name.
You can use an unix socket instead of an inet socket:
.. parsed-literal::
|qemu_system| sheepdog+unix:///IMAGE?socket=PATH
If the Sheepdog daemon doesn't run on the local host, you need to
specify one of the Sheepdog servers to connect to.
.. parsed-literal::
qemu-img create sheepdog://HOSTNAME:PORT/IMAGE SIZE
|qemu_system| sheepdog://HOSTNAME:PORT/IMAGE
iSCSI LUNs
~~~~~~~~~~

28
docs/system/removed-features.rst
View file

@ -291,6 +291,27 @@ via the CPU ``mmu`` option when using the ``rv32`` or ``rv64`` CPUs.
The ``max-cpu-compat`` property of the ``pseries`` machine type should be used
instead.
``moxie`` CPU (removed in 6.1)
''''''''''''''''''''''''''''''
Nobody was using this CPU emulation in QEMU, and there were no test images
available to make sure that the code is still working, so it has been removed
without replacement.
``lm32`` CPUs (removed in 6.1.0)
''''''''''''''''''''''''''''''''
The only public user of this architecture was the milkymist project,
which has been dead for years; there was never an upstream Linux
port. Removed without replacement.
``unicore32`` CPUs (since 6.1.0)
''''''''''''''''''''''''''''''''
Support for this CPU was removed from the upstream Linux kernel, and
there is no available upstream toolchain to build binaries for it.
Removed without replacement.
System emulator machines
------------------------
@ -467,3 +488,10 @@ VXHS backend (removed in 5.1)
'''''''''''''''''''''''''''''
The VXHS code did not compile since v2.12.0. It was removed in 5.1.
``sheepdog`` driver (removed in 6.0)
''''''''''''''''''''''''''''''''''''
The corresponding upstream server project is no longer maintained.
Users are recommended to switch to an alternative distributed block
device driver such as RBD.