def _numa_get_mem_map_list(flavor, image_meta):
flavor_mem_list = _numa_get_flavor_mem_map_list(flavor)
image_mem_list = image_meta.properties.get("hw_numa_mem", None)
if flavor_mem_list is None:
return image_mem_list
else:
if image_mem_list is not None:
raise exception.ImageNUMATopologyForbidden(name='hw_numa_mem')
return flavor_mem_list
def numa_get_constraints(flavor, image_meta):
"""Return topology related to input request
:param flavor: Flavor object to read extra specs from
:param image_meta: nova.objects.ImageMeta object instance
May raise exception.ImageNUMATopologyIncomplete() if the
image properties are not correctly specified, or
exception.ImageNUMATopologyForbidden if an attempt is
made to override flavor settings with image properties.
:returns: InstanceNUMATopology or None
"""
nodes = flavor.get('extra_specs', {}).get("hw:numa_nodes")
props = image_meta.properties
if nodes is not None:
if props.obj_attr_is_set("hw_numa_nodes"):
raise exception.ImageNUMATopologyForbidden(
name='hw_numa_nodes')
nodes = int(nodes)
else:
nodes = props.get("hw_numa_nodes")
pagesize = _numa_get_pagesize_constraints(
flavor, image_meta)
numa_topology = None
if nodes or pagesize:
nodes = nodes or 1
cpu_list = _numa_get_cpu_map_list(flavor, image_meta)
mem_list = _numa_get_mem_map_list(flavor, image_meta)
# If one property list is specified both must be
if ((cpu_list is None and mem_list is not None) or
(cpu_list is not None and mem_list is None)):
raise exception.ImageNUMATopologyIncomplete()
# If any node has data set, all nodes must have data set
if ((cpu_list is not None and len(cpu_list) != nodes) or
(mem_list is not None and len(mem_list) != nodes)):
raise exception.ImageNUMATopologyIncomplete()
if cpu_list is None:
numa_topology = _numa_get_constraints_auto(
nodes, flavor)
else:
numa_topology = _numa_get_constraints_manual(
nodes, flavor, cpu_list, mem_list)
# We currently support same pagesize for all cells.
[setattr(c, 'pagesize', pagesize) for c in numa_topology.cells]
return _add_cpu_pinning_constraint(flavor, image_meta, numa_topology)
def _numa_get_flavor_or_image_prop(flavor, image_meta, propname):
flavor_val = flavor.get('extra_specs', {}).get("hw:" + propname)
image_val = image_meta.get("hw_" + propname)
if flavor_val is not None:
if image_val is not None:
raise exception.ImageNUMATopologyForbidden(name='hw_' + propname)
return flavor_val
else:
return image_val
def _numa_get_flavor_or_image_prop(flavor, image_meta, propname):
"""Return the value of propname from flavor or image
:param flavor: a Flavor object or dict of instance type information
:param image_meta: a dict of image information
:returns: a value or None
"""
flavor_val = flavor.get('extra_specs', {}).get("hw:" + propname)
image_val = (image_meta or {}).get("properties", {}).get("hw_" + propname)
if flavor_val is not None:
if image_val is not None:
raise exception.ImageNUMATopologyForbidden(name='hw_' + propname)
return flavor_val
else:
return image_val
