Import QEMU upstream snapshot d2e570c

Upstream: https://gitlab.com/qemu-project/qemu.git

Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475

tests/functional/generic/test_empty_cpu_model.py

@@ -0,0 +1,24 @@
+#!/usr/bin/env python3
+#
+# Check for crash when using empty -cpu option
+#
+# Copyright (c) 2019 Red Hat, Inc.
+#
+# Author:
+#  Eduardo Habkost <[email protected]>
+#
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later.  See the COPYING file in the top-level directory.
+from qemu_test import QemuSystemTest
+
+class EmptyCPUModel(QemuSystemTest):
+    def test(self):
+        self.vm.add_args('-S', '-display', 'none', '-machine', 'none', '-cpu', '')
+        self.vm.set_qmp_monitor(enabled=False)
+        self.vm.launch()
+        self.vm.wait()
+        self.assertEqual(self.vm.exitcode(), 1, "QEMU exit code should be 1")
+        self.assertRegex(self.vm.get_log(), r'-cpu option cannot be empty')
+
+if __name__ == '__main__':
+    QemuSystemTest.main()