python/machine.py: re-add sigkill warning suppression

If the user kills QEMU on purpose, we don't need to warn
them about that having happened: they know already.

Signed-off-by: John Snow <[email protected]>
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
Reviewed-by: Cleber Rosa <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Philippe Mathieu-Daudé <[email protected]>

Author: jnsnow

python/qemu/machine.py

@@ -22,6 +22,7 @@
 import os
 import subprocess
 import shutil
+import signal
 import socket
 import tempfile
 from typing import Optional, Type
@@ -133,6 +134,7 @@ def __init__(self, binary, args=None, wrapper=None, name=None,
         self._console_address = None
         self._console_socket = None
         self._remove_files = []
+        self._user_killed = False
         self._console_log_path = console_log
         if self._console_log_path:
             # In order to log the console, buffering needs to be enabled.
@@ -327,14 +329,16 @@ def _post_shutdown(self):
             self._remove_if_exists(self._remove_files.pop())
 
         exitcode = self.exitcode()
-        if exitcode is not None and exitcode < 0:
+        if (exitcode is not None and exitcode < 0
+                and not (self._user_killed and exitcode == -signal.SIGKILL)):
             msg = 'qemu received signal %i; command: "%s"'
             if self._qemu_full_args:
                 command = ' '.join(self._qemu_full_args)
             else:
                 command = ''
             LOG.warning(msg, -int(exitcode), command)
 
+        self._user_killed = False
         self._launched = False
 
     def launch(self):
@@ -469,6 +473,7 @@ def shutdown(self, has_quit: bool = False,
 
         try:
             if hard:
+                self._user_killed = True
                 self._hard_shutdown()
             else:
                 self._do_shutdown(has_quit, timeout=timeout)