mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-23 21:34:54 +03:00
docs: document <controller> element
* docs/formatdomain.html.in: Talk about <controller> and <address> throughout.
This commit is contained in:
parent
e23842856c
commit
3703c3fed4
@ -722,6 +722,7 @@
|
||||
</source>
|
||||
<target dev="hdb" bus="ide"/>
|
||||
<boot order='1'/>
|
||||
<address type='drive' controller='0' bus='1' unit='0'/>
|
||||
</disk>
|
||||
</devices>
|
||||
...</pre>
|
||||
@ -824,8 +825,68 @@
|
||||
</tr>
|
||||
</table>
|
||||
</dd>
|
||||
<dt><code>address</code></dt>
|
||||
<dd>If present, the <code>address</code> element ties the disk
|
||||
to a given slot of a controller (the
|
||||
actual <code><controller></code> device can often be
|
||||
inferred by libvirt, although it can
|
||||
be <a href="#elementsControllers">explicitly specified</a>).
|
||||
The <code>type</code> attribute is mandatory, and is typically
|
||||
"pci" or "drive". For a "pci" controller, additional
|
||||
attributes for <code>bus</code>, <code>slot</code>,
|
||||
and <code>function</code> must be present, as well as an
|
||||
optional <code>domain</code>. For a "drive" controller,
|
||||
additional attributes <code>controller</code>, <code>bus</code>,
|
||||
and <code>unit</code> are available, each defaulting to 0.
|
||||
</dd>
|
||||
</dl>
|
||||
|
||||
<h4><a name="elementsControllers">Controllers</a></h4>
|
||||
|
||||
<p>
|
||||
Many devices that have an <code><address></code>
|
||||
sub-element are designed to work with a controller to manage
|
||||
related devices. Normally, libvirt can automatically infer such
|
||||
controllers without requiring explicit XML markup, but sometimes
|
||||
it is necessary to provide an explicit controller element.
|
||||
</p>
|
||||
|
||||
<pre>
|
||||
...
|
||||
<devices>
|
||||
<controller type='ide' index='0'/>
|
||||
<controller type='virtio-serial' index='0' ports='16' vectors='4'/>
|
||||
<controller type='virtio-serial' index='1'>
|
||||
<address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
|
||||
</controller>
|
||||
...
|
||||
</devices>
|
||||
...</pre>
|
||||
|
||||
<p>
|
||||
Each controller has a mandatory attribute <code>type</code>,
|
||||
which must be one of "ide", "fdc", "scsi", "sata", or
|
||||
"virtio-serial", and a mandatory attribute <code>index</code>
|
||||
which is the decimal integer describing in which order the bus
|
||||
controller is encountered (for use in <code>controller</code>
|
||||
attributes of <code><address></code> elements). The
|
||||
"virtio-serial" controller has two additional optional
|
||||
attributes <code>ports</code> and <code>vectors</code>, which
|
||||
control how many devices can be connected through the
|
||||
controller. A "scsi" controller has an optional
|
||||
attribute <code>model</code>, which is one of "auto",
|
||||
"buslogic", "lsilogic", "lsias1068", or "vmpvscsi".
|
||||
</p>
|
||||
|
||||
<p>
|
||||
For controllers that are themselves devices on a PCI or USB bus,
|
||||
an optional sub-element <code><address></code> can specify
|
||||
the exact relationship of the controller to its master bus, with
|
||||
semantics like any other device's <code>address</code>
|
||||
sub-element.
|
||||
</p>
|
||||
|
||||
|
||||
<h4><a name="elementsUSB">USB and PCI devices</a></h4>
|
||||
|
||||
<p>
|
||||
@ -908,6 +969,18 @@
|
||||
</devices>
|
||||
...</pre>
|
||||
|
||||
<p>
|
||||
There are several possibilities for specifying a network
|
||||
interface visible to the guest. Each subsection below provides
|
||||
more details about common setup options. Additionally,
|
||||
each <code><interface></code> element has an
|
||||
optional <code><address></code> sub-element that can tie
|
||||
the interface to a particular pci slot, with
|
||||
attribute <code>type='pci'</code> and additional
|
||||
attributes <code>domain</code>, <code>bus</code>, <code>slot</code>,
|
||||
and <code>function</code> as appropriate.
|
||||
</p>
|
||||
|
||||
<h5><a name="elementsNICSVirtual">Virtual network</a></h5>
|
||||
|
||||
<p>
|
||||
@ -1229,6 +1302,11 @@ qemu-kvm -net nic,model=? /dev/null
|
||||
It takes values "xen" (paravirtualized), "ps2" and "usb".</dd>
|
||||
</dl>
|
||||
|
||||
<p>
|
||||
The <code>input</code> element has an optional
|
||||
sub-element <code><address></code> which can tie the
|
||||
device to a particular PCI slot.
|
||||
</p>
|
||||
|
||||
<h4><a name="elementsGraphics">Graphical framebuffers</a></h4>
|
||||
|
||||
@ -1365,6 +1443,12 @@ qemu-kvm -net nic,model=? /dev/null
|
||||
<code>accel3d</code> and <code>accel2d</code> attributes in the
|
||||
<code>acceleration</code> element.
|
||||
</dd>
|
||||
|
||||
<dt><code>address</code></dt>
|
||||
<dd>
|
||||
The optional <code>address</code> sub-element can be used to
|
||||
tie the video device to a particular PCI slot.
|
||||
</dd>
|
||||
</dl>
|
||||
|
||||
<h4><a name="elementsConsole">Consoles, serial, parallel & channel devices</a></h4>
|
||||
@ -1409,6 +1493,14 @@ qemu-kvm -net nic,model=? /dev/null
|
||||
configured by the <code>source</code> element.
|
||||
</p>
|
||||
|
||||
<p>
|
||||
Each character device element has an optional
|
||||
sub-element <code><address></code> which can tie the
|
||||
device to a
|
||||
particular <a href="#elementsControllers">controller</a> or PCI
|
||||
slot.
|
||||
</p>
|
||||
|
||||
<h5><a name="elementsCharGuestInterface">Guest interface</a></h5>
|
||||
|
||||
<p>
|
||||
@ -1528,9 +1620,11 @@ qemu-kvm -net nic,model=? /dev/null
|
||||
|
||||
<dt><code>virtio</code></dt>
|
||||
<dd>Paravirtualized virtio channel. Channel is exposed in the guest under
|
||||
/dev/vport*, and if the optional element<code>name</code> is specified,
|
||||
/dev/vport*, and if the optional element <code>name</code> is specified,
|
||||
/dev/virtio-ports/$name (for more info, please see
|
||||
<a href="http://fedoraproject.org/wiki/Features/VirtioSerial">http://fedoraproject.org/wiki/Features/VirtioSerial</a>)
|
||||
<a href="http://fedoraproject.org/wiki/Features/VirtioSerial">http://fedoraproject.org/wiki/Features/VirtioSerial</a>). The
|
||||
optional element <code>address</code> can tie the channel to a
|
||||
particular <code>type='virtio-serial'</code> controller.
|
||||
<span class="since">Since 0.7.7</span></dd>
|
||||
</dl>
|
||||
|
||||
@ -1787,6 +1881,12 @@ qemu-kvm -net nic,model=? /dev/null
|
||||
</dd>
|
||||
</dl>
|
||||
|
||||
<p>
|
||||
Each <code>sound</code> element has an optional
|
||||
sub-element <code><address></code> which can tie the
|
||||
device to a particular PCI slot.
|
||||
</p>
|
||||
|
||||
<h4><a name="elementsWatchdog">Watchdog device</a></h4>
|
||||
|
||||
<p>
|
||||
|
Loading…
Reference in New Issue
Block a user