[PATCH v20 19/21] tests/avocado: s390x cpu topology dedicated errors

[Pierre Morel]

Let's test that QEMU refuses to setup a dedicated CPU with
low or medium entitlement.

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
---
 tests/avocado/s390_topology.py | 51 ++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
index dfa33ada48..37fffc2dbb 100644
--- a/tests/avocado/s390_topology.py
+++ b/tests/avocado/s390_topology.py
@@ -361,3 +361,54 @@ def test_socket_full(self):
         res = self.vm.qmp('set-cpu-topology',
                           {'core-id': 2, 'socket-id': 0, 'book-id': 1})
         self.assertEqual(res['return'], {})
+
+    def test_dedicated_error(self):
+        """
+        This test verifies that QEMU refuses to lower the entitlement
+        of a dedicated CPU
+
+        :avocado: tags=arch:s390x
+        :avocado: tags=machine:s390-ccw-virtio
+        """
+        self.kernel_init()
+        self.vm.launch()
+        self.wait_for_console_pattern('no job control')
+
+        self.system_init()
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 0, 'dedicated': True})
+        self.assertEqual(res['return'], {})
+
+        self.check_topology(0, 0, 0, 0, 'high', True)
+
+        exec_command(self, 'echo 1 > /sys/devices/system/cpu/dispatching')
+        time.sleep(0.2)
+        exec_command_and_wait_for_pattern(self,
+                '/bin/cat /sys/devices/system/cpu/dispatching', '1')
+
+        self.check_topology(0, 0, 0, 0, 'high', True)
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 0, 'entitlement': 'low', 'dedicated': 
True})
+        self.assertEqual(res['error']['class'], 'GenericError')
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 0, 'entitlement': 'low'})
+        self.assertEqual(res['error']['class'], 'GenericError')
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 0, 'entitlement': 'medium', 'dedicated': 
True})
+        self.assertEqual(res['error']['class'], 'GenericError')
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 0, 'entitlement': 'medium'})
+        self.assertEqual(res['error']['class'], 'GenericError')
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 0, 'entitlement': 'low', 'dedicated': 
False})
+        self.assertEqual(res['return'], {})
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 0, 'entitlement': 'medium', 'dedicated': 
False})
+        self.assertEqual(res['return'], {})
-- 
2.31.1