diff --git a/nova/flags.py b/nova/flags.py
index fa6d8860..12c6d135 100644
--- a/nova/flags.py
+++ b/nova/flags.py
@@ -387,3 +387,8 @@ DEFINE_list('zone_capabilities',
                  'Key/Multi-value list representng capabilities of this zone')
 DEFINE_string('build_plan_encryption_key', None,
         '128bit (hex) encryption key for scheduler build plans.')
+
+DEFINE_bool('start_guests_on_host_boot', False,
+            'Whether to restart guests when the host reboots')
+DEFINE_bool('resume_guests_state_on_host_boot', False,
+            'Whether to start guests, that was running before the host reboot')