fup for power management series

Emptying the cpu init file and directly calling the submodule API.

Relates to blueprint libvirt-cpu-state-mgmt

Change-Id: I1299ca4b49743f58bec6f541785dd9fbee0ae9e2

Author: sbauza

nova/tests/functional/libvirt/test_power_manage.py

@@ -21,7 +21,7 @@
 from nova.tests.fixtures import libvirt as fakelibvirt
 from nova.tests.functional.libvirt import base
 from nova.virt import hardware
-from nova.virt.libvirt import cpu
+from nova.virt.libvirt.cpu import api as cpu_api
 
 
 class PowerManagementTestsBase(base.ServersTestBase):
@@ -73,7 +73,7 @@ def _assert_server_cpus_state(self, server, expected='online'):
 
     def _assert_cpu_set_state(self, cpu_set, expected='online'):
         for i in cpu_set:
-            core = cpu.Core(i)
+            core = cpu_api.Core(i)
             if expected == 'online':
                 self.assertTrue(core.online, f'{i} is not online')
             elif expected == 'offline':
@@ -212,7 +212,7 @@ def test_create(self):
 
     def test_changing_strategy_fails(self):
         # Arbitratly set a core governor strategy to be performance
-        cpu.Core(1).set_high_governor()
+        cpu_api.Core(1).set_high_governor()
         # and then forget about it while changing the strategy.
         self.flags(cpu_power_management_strategy='cpu_state', group='libvirt')
         # This time, this wouldn't be acceptable as some core would have a

nova/virt/libvirt/cpu/__init__.py

@@ -1,22 +0,0 @@
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-from nova.virt.libvirt.cpu import api
-
-
-Core = api.Core
-
-
-power_up = api.power_up
-power_down = api.power_down
-validate_all_dedicated_cpus = api.validate_all_dedicated_cpus
-power_down_all_dedicated_cpus = api.power_down_all_dedicated_cpus

nova/virt/libvirt/driver.py

@@ -114,7 +114,7 @@
 from nova.virt import images
 from nova.virt.libvirt import blockinfo
 from nova.virt.libvirt import config as vconfig
-from nova.virt.libvirt import cpu as libvirt_cpu
+from nova.virt.libvirt.cpu import api as libvirt_cpu
 from nova.virt.libvirt import designer
 from nova.virt.libvirt import event as libvirtevent
 from nova.virt.libvirt import guest as libvirt_guest