[libvirt] [PATCH v2 4/4] doc: add attribute primary doc to video model element

[Guannan Ren]

---
 docs/formatdomain.html.in | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index c81af8a..3d1fdf4 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -3485,7 +3485,11 @@ qemu-kvm -net nic,model=? /dev/null
         will add a default <code>video</code> according to the guest type.
         For a guest of type "kvm", the default <code>video</code> for it is:
         <code>type</code> with value "cirrus", <code>vram</code> with value
-        "9216", and <code>heads</code> with value "1".
+        "9216", and <code>heads</code> with value "1". By default, the first
+        video device in domain xml is the primary one, but the optional
+        attribute <code>primary</code> with value 'yes' can be used to mark the
+        primary in cases of mutiple video device. The non-primary must be
+        type of "qxl".
       </dd>
 
       <dt><code>model</code></dt>
-- 
1.7.11.2