of the starting register). <span class="since">Since
0.9.9.</span>
</dd>
- <dt><code>type='ccw'</code></dt>
- <dd>s390 guests with a <code>machine</code> value of
- s390-ccw-virtio use the native CCW bus for I/O devices.
- CCW bus addresses have the following additional attributes:
- <code>cssid</code> (a hex value between 0 and 0xfe, inclusive),
- <code>ssid</code> (a value between 0 and 3, inclusive) and
- <code>schid</code> (a hex value between 0 and 0xffff, inclusive).
- Partially specified bus addresses are not allowed.
- If omitted, libvirt will assign a free bus address with
- cssid=0xfe and ssid=0. Virtio devices for s390 must have their
- cssid set to 0xfe in order to be recognized by the guest
- operating system.
- <span class="since">Since 1.0.3.</span>
- </dd>
</dl>
<h4><a name="elementsControllers">Controllers</a></h4>
<optional>
<attribute name="machine">
<choice>
- <value>s390</value>
<value>s390-virtio</value>
- <value>s390-ccw</value>
- <value>s390-ccw-virtio</value>
</choice>
</attribute>
</optional>
</attribute>
</optional>
</define>
- <define name="ccwaddress">
- <optional>
- <attribute name="cssid">
- <ref name="ccwCssidRange"/>
- </attribute>
- <attribute name="ssid">
- <ref name="ccwSsidRange"/>
- </attribute>
- <attribute name="schid">
- <ref name="ccwSchidRange"/>
- </attribute>
- </optional>
- </define>
<define name="driveaddress">
<optional>
<attribute name="controller">
</attribute>
<ref name="spaprvioaddress"/>
</group>
- <group>
- <attribute name="type">
- <value>ccw</value>
- </attribute>
- <ref name="ccwaddress"/>
- </group>
</choice>
</element>
</define>
</element>
<empty/>
</define>
- <define name="ccwCssidRange">
- <choice>
- <data type="string">
- <param name="pattern">0x[0-9a-eA-E][0-9a-fA-F]?</param>
- </data>
- <data type="string">
- <param name="pattern">0x[fF][0-9a-eA-E]?</param>
- </data>
- <data type="int">
- <param name="minInclusive">0</param>
- <param name="maxInclusive">254</param>
- </data>
- </choice>
- </define>
- <define name="ccwSsidRange">
- <data type="string">
- <param name="pattern">(0x)?[0-3]</param>
- </data>
- </define>
- <define name="ccwSchidRange">
- <choice>
- <data type="string">
- <param name="pattern">0x[0-9a-fA-F]{1,4}</param>
- </data>
- <data type="int">
- <param name="minInclusive">0</param>
- <param name="maxInclusive">65535</param>
- </data>
- </choice>
- </define>
</grammar>