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docs: Add doc for video element

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For backwards compatibility, if no <video> is set but there is a
<graphics> tag, then we add a default <video> according to the
guest type. Add docs to tell the user about this to not make
them confused. Especially if they remove the video (such as via
"virsh edit"), it will be surprised for them to see the video
element is still in domain XML.
This commit is contained in:
Osier Yang 2011-06-07 16:56:06 +08:00
parent ebf6b11ac1
commit 99c8a5c8af
1 changed files with 6 additions and 1 deletions
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7
docs/formatdomain.html.in
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@ -1907,7 +1907,12 @@ qemu-kvm -net nic,model=? /dev/null
<dt><code>video</code></dt>
<dd>
The <code>video</code> element is the a container for describing
video devices.
video devices. For backwards compatability, if no <code>video</code>
is set but there is a <code>graphics</code> in domain xml, then libvirt
will add a default <code>video</code> according to the guest type.
For a guest of type "kvm", the default <code>video</code> for it is:
<code>type</code> with value "cirrus", <code>vram</code> with value
"9216", and <code>heads</code> with value "1".
</dd>
<dt><code>model</code></dt>