<features> was introduced in 24f17f55 and have only gic child element at the time. Thus from backcompat POV the other children are optional. Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy(a)virtuozzo.com&gt; --- docs/schemas/domaincaps.rng | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/docs/schemas/domaincaps.rng b/docs/schemas/domaincaps.rng index 7d80693..2258365 100644 --- a/docs/schemas/domaincaps.rng +++ b/docs/schemas/domaincaps.rng @@ -183,9 +183,15 @@ <element name='features'> <interleave> <ref name='gic'/> - <ref name='vmcoreinfo'/> - <ref name='vmgenid'/> - <ref name='sev'/> + <optional> + <ref name='vmcoreinfo'/> + </optional> + <optional> + <ref name='vmgenid'/> + </optional> + <optional> + <ref name='sev'/> + </optional> </interleave> </element> </define> -- 1.8.3.1