qemu-iotests: Add VM.get_qmp_events_filtered()

This adds a helper function that returns a list of QMP events that are
already filtered through filter_qmp_event().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>

tests/qemu-iotests/iotests.py

@@ -383,6 +383,11 @@ class VM(qtest.QEMUQtestMachine):
             output_list += [key + '=' + obj[key]]
         return ','.join(output_list)
 
+    def get_qmp_events_filtered(self, wait=True):
+        result = []
+        for ev in self.get_qmp_events(wait=wait):
+            result.append(filter_qmp_event(ev))
+        return result
 
 
 index_re = re.compile(r'([^\[]+)\[([^\]]+)\]')