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conf: Add channel devices to domain capabilities

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As qemu becomes more modularized, it is important for libvirt to advertise
availability of the modularized functionality through capabilities. This
change adds channel devices to domain capabilities, allowing clients such
as virt-install to avoid using spicevmc channel devices when not supported
by the target qemu.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Jim Fehlig
2022-10-17 11:39:00 -06:00
parent 2cf14c311b
commit 71d9836ca1
55 changed files with 399 additions and 0 deletions
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docs/formatdomaincaps.rst
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@@ -565,6 +565,30 @@ USB redirdev device capabilities are exposed under the ``redirdev`` element. For
``bus``
Options for the ``bus`` attribute of the ``<redirdev/>`` element.
Channel device
^^^^^^^^^^^^^^
Channel device capabilities are exposed under the ``channel`` element. For instance:
::
<domainCapabilities>
...
<devices>
<channel supported='yes'>
<enum name='type'>
<value>pty</value>
<value>unix</value>
<value>spicevmc</value>
</enum>
</channel
...
</devices>
</domainCapabilities>
``type``
Options for the ``type`` attribute of the ``<channel/>`` element.
Features
~~~~~~~~