[Qemu-devel] [PATCH v1 08/17] tests/vm: proper guest shutdown

["Alex Bennée" <alex.bennee@linaro.org>]

From: Gerd Hoffmann <kraxel@redhat.com>

When not running in snapshot mode ask the guest to poweroff and wait for
this to finish instead of simply quitting qemu, so the guest can flush
pending updates to disk.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190617043858.8290-5-kraxel@redhat.com>
[AJB: added tags]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 tests/vm/basevm.py | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/tests/vm/basevm.py b/tests/vm/basevm.py
index 395eefaec9..f27178f3c7 100755
--- a/tests/vm/basevm.py
+++ b/tests/vm/basevm.py
@@ -51,6 +51,8 @@ class BaseVM(object):
     name = "#base"
     # The guest architecture, to be overridden by subclasses
     arch = "#arch"
+    # command to halt the guest, can be overridden by subclasses
+    poweroff = "poweroff"
     def __init__(self, debug=False, vcpus=None):
         self._guest = None
         self._tmpdir = os.path.realpath(tempfile.mkdtemp(prefix="vm-test-",
@@ -202,6 +204,10 @@ class BaseVM(object):
     def wait(self):
         self._guest.wait()
 
+    def graceful_shutdown(self):
+        self.ssh_root(self.poweroff)
+        self._guest.wait()
+
     def qmp(self, *args, **kwargs):
         return self._guest.qmp(*args, **kwargs)
 
@@ -278,11 +284,13 @@ def main(vmcls):
         traceback.print_exc()
         return 2
 
-    if args.interactive:
-        if vm.ssh(*cmd) == 0:
-            return 0
+    exitcode = 0
+    if vm.ssh(*cmd) != 0:
+        exitcode = 3
+    if exitcode != 0 and args.interactive:
         vm.ssh()
-        return 3
-    else:
-        if vm.ssh(*cmd) != 0:
-            return 3
+
+    if not args.snapshot:
+        vm.graceful_shutdown()
+
+    return exitcode
-- 
2.20.1