object: nodedev: support isActive state

This was added to libvirt in the past few years, and we may want it
for mdev addhardware UI

Signed-off-by: Cole Robinson <crobinso@redhat.com>

virtManager/object/nodedev.py

@@ -57,6 +57,13 @@ class vmmNodeDevice(vmmLibvirtObject):
         return self._STATUS_ACTIVE
     def _using_events(self):
         return self.conn.using_node_device_events
+    def _get_backend_status(self):
+        is_active = True
+        if self.conn.support.nodedev_isactive(self._backend):
+            is_active = self._backend.isActive()
+        return (is_active and
+                self._STATUS_ACTIVE or
+                self._STATUS_INACTIVE)
 
     def pretty_name(self):
         return _pretty_name(self.xmlobj)

virtinst/support.py

@@ -304,6 +304,11 @@ class SupportCache:
         flag="VIR_STORAGE_VOL_CREATE_PREALLOC_METADATA",
         version="1.0.1")
 
+    # Nodedev checks
+    # Added in libvirt 7.8.0 mid 2021
+    nodedev_isactive = _make(
+        function="virNodeDevice.isActive", run_args=())
+
 
     def _check_version(self, version):
         """