def _get_alias_from_config():
"""Parse and validate PCI aliases from the nova config."""
jaliases = CONF.pci.alias
aliases = {} # map alias name to alias spec list
try:
for jsonspecs in jaliases:
spec = jsonutils.loads(jsonspecs)
jsonschema.validate(spec, _ALIAS_SCHEMA)
name = spec.pop("name")
dev_type = spec.pop('device_type', None)
if dev_type:
spec['dev_type'] = dev_type
if name not in aliases:
aliases[name] = [spec]
else:
if aliases[name][0]["dev_type"] == spec["dev_type"]:
aliases[name].append(spec)
else:
reason = _("Device type mismatch for alias '%s'") % name
raise exception.PciInvalidAlias(reason=reason)
except exception.PciInvalidAlias:
raise
except Exception as e:
raise exception.PciInvalidAlias(reason=six.text_type(e))
return aliases
def _get_alias_from_config():
"""Parse and validate PCI aliases from the nova config.
:returns: A dictionary where the keys are device names and the values are
tuples of form ``(specs, numa_policy)``. ``specs`` is a list of PCI
device specs, while ``numa_policy`` describes the required NUMA
affinity of the device(s).
:raises: exception.PciInvalidAlias if two aliases with the same name have
different device types or different NUMA policies.
"""
jaliases = CONF.pci.alias
aliases = {} # map alias name to alias spec list
try:
for jsonspecs in jaliases:
spec = jsonutils.loads(jsonspecs)
jsonschema.validate(spec, _ALIAS_SCHEMA)
name = spec.pop('name').strip()
numa_policy = spec.pop('numa_policy', None)
if not numa_policy:
numa_policy = obj_fields.PCINUMAAffinityPolicy.LEGACY
dev_type = spec.pop('device_type', None)
if dev_type:
spec['dev_type'] = dev_type
if name not in aliases:
aliases[name] = (numa_policy, [spec])
continue
if aliases[name][0] != numa_policy:
reason = _("NUMA policy mismatch for alias '%s'") % name
raise exception.PciInvalidAlias(reason=reason)
if aliases[name][1][0]['dev_type'] != spec['dev_type']:
reason = _("Device type mismatch for alias '%s'") % name
raise exception.PciInvalidAlias(reason=reason)
aliases[name][1].append(spec)
except exception.PciInvalidAlias:
raise
except jsonschema.exceptions.ValidationError as exc:
raise exception.PciInvalidAlias(reason=exc.message)
except Exception as exc:
raise exception.PciInvalidAlias(reason=str(exc))
return aliases
def _get_alias_from_config():
"""Parse and validate PCI aliases from the nova config."""
jaliases = CONF.pci.alias
aliases = {} # map alias name to alias spec list
try:
for jsonspecs in jaliases:
# WRS: Align with packstack and pci_passthrough_whitelist. Support
# list of pci_alias.
try:
spec = jsonutils.loads(jsonspecs)
except ValueError:
raise exception.PciInvalidAlias(
reason=_("Invalid entry: '%s'") % jsonspecs)
if isinstance(spec, dict):
spec = [spec]
elif not isinstance(spec, list):
raise exception.PciInvalidAlias(
reason=_("Invalid entry: '%s'; "
"Expecting list or dict") % jsonspecs)
for s in spec:
jsonschema.validate(s, _ALIAS_SCHEMA)
# It should keep consistent behaviour in configuration
# and extra specs to call strip() function.
name = s.pop("name").strip()
dev_type = s.pop('device_type', None)
if dev_type:
s['dev_type'] = dev_type
if name not in aliases:
aliases[name] = [s]
else:
if aliases[name][0]["dev_type"] == s["dev_type"]:
aliases[name].append(s)
else:
reason = (_("Device type mismatch for alias '%s'") %
name)
raise exception.PciInvalidAlias(reason=reason)
except exception.PciInvalidAlias:
raise
except Exception as e:
raise exception.PciInvalidAlias(reason=six.text_type(e))
return aliases
