Allow to specify non default vm for the command.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
---
 tests/functional/qemu_test/cmd.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tests/functional/qemu_test/cmd.py b/tests/functional/qemu_test/cmd.py
index dc5f422b77..28b36a3a54 100644
--- a/tests/functional/qemu_test/cmd.py
+++ b/tests/functional/qemu_test/cmd.py
@@ -172,7 +172,8 @@ def exec_command(test, command):
     _console_interaction(test, None, None, command + '\r')
 
 def exec_command_and_wait_for_pattern(test, command,
-                                      success_message, failure_message=None):
+                                      success_message, failure_message=None,
+                                      vm=None):
     """
     Send a command to a console (appending CRLF characters), then wait
     for success_message to appear on the console, while logging the.
@@ -184,9 +185,11 @@ def exec_command_and_wait_for_pattern(test, command,
     :param command: the command to send
     :param success_message: if this message appears, test succeeds
     :param failure_message: if this message appears, test fails
+    :param vm: the VM to use (defaults to test.vm if None)
     """
     assert success_message
-    _console_interaction(test, success_message, failure_message, command + '\r')
+    _console_interaction(test, success_message, failure_message, command + '\r',
+                         vm=vm)
 
 def get_qemu_img(test):
     test.log.debug('Looking for and selecting a qemu-img binary')
-- 
2.48.1