[libvirt][PATCH v4 1/3] docs: add docs for 'restrictive' option for mode in numatune

When user would like use cgroups to restrict the allowed memory nodes, and require not setting any specific memory policy, then 'restrictive' mode is useful. Reviewed-by: Daniel Henrique Barboza <danielhb413(a)gmail.com&gt; Signed-off-by: Luyao Zhong <luyao.zhong(a)intel.com&gt; --- docs/formatdomain.rst | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst index 9392c80113..08d3c727be 100644 --- a/docs/formatdomain.rst +++ b/docs/formatdomain.rst @@ -1120,8 +1120,11 @@ NUMA Node Tuning ``memory`` The optional ``memory`` element specifies how to allocate memory for the domain process on a NUMA host. It contains several optional attributes. - Attribute ``mode`` is either 'interleave', 'strict', or 'preferred', defaults - to 'strict'. Attribute ``nodeset`` specifies the NUMA nodes, using the same + Attribute ``mode`` is either 'interleave', 'strict', 'preferred' or + 'restrictive', defaults to 'strict'. The value 'restrictive' specifies + using system default policy and only cgroups is used to restrict the + memory nodes, and it requires setting mode to 'restrictive' in ``memnode`` + elements. Attribute ``nodeset`` specifies the NUMA nodes, using the same syntax as attribute ``cpuset`` of element ``vcpu``. Attribute ``placement`` ( :since:`since 0.9.12` ) can be used to indicate the memory placement mode for domain process, its value can be either "static" or "auto", defaults to -- 2.25.4