The example pvspinlock XML is: <pvspinlock/> While this is accepted by libvirt and works correctly, it's currently always output as a tristate like <pvspinlock state='on'/> So document that format instead --- docs/formatdomain.html.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index efa485c..c88b032 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1464,7 +1464,7 @@ &lt;kvm&gt; &lt;hidden state='on'/&gt; &lt;/kvm&gt; - &lt;pvspinlock/&gt; + &lt;pvspinlock state='on'/&gt; &lt;gic version='2'/&gt; &lt;/features&gt; -- 2.5.0