[libvirt] [PATCH] docs: Enhance memoryBacking/locked documentation

[Jiri Denemark]

Mention the need to set memtune/hard_limit.

https://bugzilla.redhat.com/show_bug.cgi?id=1035954
Signed-off-by: Jiri Denemark <jdenemar at redhat.com>
---
 docs/formatdomain.html.in | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 1850a2b..b4ee9f3 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -638,7 +638,10 @@
       <dt><code>locked</code></dt>
       <dd>When set and supported by the hypervisor, memory pages belonging
         to the domain will be locked in host's memory and the host will not
-        be allowed to swap them out.
+        be allowed to swap them out. For QEMU/KVM this requires
+        <code>hard_limit</code> <a href="#elementsMemoryTuning">memory tunning</a>
+        element to be used and set to the maximum memory configured for the
+        domain plus any memory consumed by the QEMU process itself.
         <span class="since">Since 1.0.6</span></dd>
     </dl>
 
-- 
1.8.5.1