[libvirt] [PATCH 16/16] docs: Document the new hostdev device type 'mdev'

Erik Skultety eskultet at redhat.com
Mon Feb 6 12:19:58 UTC 2017


Signed-off-by: Erik Skultety <eskultet at redhat.com>
---
 docs/formatdomain.html.in | 40 ++++++++++++++++++++++++++++++++++++----
 1 file changed, 36 insertions(+), 4 deletions(-)

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 77d8e71..10cef31 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -3765,6 +3765,20 @@
   </devices>
   ...</pre>
 
+    <p>or:</p>
+
+<pre>
+  ...
+  <devices>
+    <hostdev mode='subsystem' type='mdev'>
+    <source>
+      <address domain='0x0000' bus='0x06' slot='0x02' function='0x0'/>
+      <uuid>c2177883-f1bb-47f0-914d-32a22e3a8804</uuid>
+    </source>
+    </hostdev>
+  </devices>
+  ...</pre>
+
     <dl>
       <dt><code>hostdev</code></dt>
       <dd>The <code>hostdev</code> element is the main container for describing
@@ -3809,12 +3823,20 @@
             <code>type</code> passes all LUNs presented by a single HBA to
             the guest.
           </dd>
+          <dt><code>mdev</code></dt>
+          <dd>For mediated devices (<span class="since">Since 3.1.0</span>)
+          the <code>managed</code> attribute controls whether the mediated
+          device to be assigned is pre-created by the user or shall be created
+          automatically by libvirt using the information provided by the
+          <code>source</code> element. Currently, only the value "no" is
+          supported which is the same as omitting the attribute completely.
+          </dd>
         </dl>
         <p>
-          Note: The <code>managed</code> attribute is only used with PCI devices
-          and is ignored by all the other device types, thus setting
-          <code>managed</code> explicitly with other than PCI device has the same
-          effect as omitting it.
+          Note: The <code>managed</code> attribute is only used with PCI and
+          mediated devices and is ignored by all the other device types, thus
+          setting <code>managed</code> explicitly with other than a PCI or a
+          mediated device has the same effect as omitting it.
         </p>
       </dd>
       <dt><code>source</code></dt>
@@ -3879,6 +3901,16 @@
             is the vhost_scsi wwpn (16 hexadecimal digits with a prefix of
             "naa.") established in the host configfs.
           </dd>
+          <dt><code>mdev</code></dt>
+          <dd>Mediated devices (<span class="since">Since 3.1.0</span>) are
+          described by the PCI <code>address</code> of the backing physical
+          parent device. Additionally, the mediated device is further identified
+          by the <code>uuid</code> element. The element is optional if
+          <code>managed="yes"</code>, in which case the UUID shall be
+          generated automatically along with creation with the mediated
+          device. However, when <code>managed="no"</code> then <code>uuid</code>
+          element is mandatory.
+          </dd>
         </dl>
       </dd>
       <dt><code>vendor</code>, <code>product</code></dt>
-- 
2.10.2




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