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docs: clarify disk iothread support

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Rather than be specific about which devices in the <iothreads> description,
let's leave that for the <disk> description for it's <iothread> value.

Signed-off-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
John Ferlan 2016-04-21 07:53:08 -04:00
parent e2faa97672
commit 6ddd9df9fb
1 changed files with 6 additions and 4 deletions
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10
docs/formatdomain.html.in
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@ -566,7 +566,7 @@
<dd> <dd>
The content of this optional element defines the number The content of this optional element defines the number
of IOThreads to be assigned to the domain for use by of IOThreads to be assigned to the domain for use by
virtio-blk-pci and virtio-blk-ccw target storage devices. There supported target storage devices. There
should be only 1 or 2 IOThreads per host CPU. There may be more should be only 1 or 2 IOThreads per host CPU. There may be more
than one supported device assigned to each IOThread. than one supported device assigned to each IOThread.
<span class="since">Since 1.2.8</span> <span class="since">Since 1.2.8</span>
@ -2560,9 +2560,11 @@
The optional <code>iothread</code> attribute assigns the The optional <code>iothread</code> attribute assigns the
disk to an IOThread as defined by the range for the domain disk to an IOThread as defined by the range for the domain
<a href="#elementsIOThreadsAllocation"><code>iothreads</code></a> <a href="#elementsIOThreadsAllocation"><code>iothreads</code></a>
value. Multiple devices may be assigned to the same IOThread and value. Multiple disks may be assigned to the same IOThread and
are numbered from 1 to the domain iothreads value. are numbered from 1 to the domain iothreads value. Available
<span class='since'>Since 1.2.8 (QEMU only)</span> for a disk device <code>target</code> configured to use "virtio"
<code>bus</code> and "pci" or "ccw" <code>address</code> types.
<span class='since'>Since 1.2.8 (QEMU 2.1)</span>
</li> </li>
</ul> </ul>
</dd> </dd>