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docs: bhyve: document clock configuration

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Roman Bogorodskiy 2015-07-19 11:20:36 +03:00
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docs/drvbhyve.html.in
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@ -250,5 +250,33 @@ attempt to boot from the first partition in the disk image.</p>
<p>Caveat: <code>bootloader_args</code> does not support any quoting.
Filenames, etc, must not have spaces or they will be tokenized incorrectly.</p>
<h3><a name="clockconfig">Clock configuration</a></h3>
<p>Originally bhyve supported only localtime for RTC. Support for UTC time was introduced in
<a href="http://svnweb.freebsd.org/changeset/base/284894">r284894</a> for <i>10-STABLE</i> and
in <a href="http://svnweb.freebsd.org/changeset/base/279225">r279225</a> for <i>-CURRENT</i>.
It's possible to use this in libvirt <span class="since">since 1.2.18</span>, just place the
following to domain XML:</p>
<pre>
&lt;domain type="bhyve"&gt;
...
&lt;clock offset='utc'/&gt;
...
&lt;/domain&gt;
</pre>
<p>Please note that if you run the older bhyve version that doesn't support UTC time, you'll
fail to start a domain. As UTC is used as a default when you do not specify clock settings,
you'll need to explicitly specify 'localtime' in this case:</p>
<pre>
&lt;domain type="bhyve"&gt;
...
&lt;clock offset='localtime'/&gt;
...
&lt;/domain&gt;
</pre>
</body>
</html>