@@ -300,3 +300,37 @@ def test_entitlement(self):
self.check_topology(1, 0, 0, 0, 'medium', False)
self.check_topology(2, 1, 0, 0, 'high', False)
self.check_topology(3, 1, 0, 0, 'high', False)
+
+ def test_dedicated(self):
+ """
+ This test verifies that QEMU modifies the entitlement change correctly
+ for a dedicated CPU after several guest polarization change requests.
+
+ :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)
+
+ exec_command(self, 'echo 0 > /sys/devices/system/cpu/dispatching')
+ time.sleep(0.2)
+ exec_command_and_wait_for_pattern(self,
+ '/bin/cat /sys/devices/system/cpu/dispatching', '0')
+
+ self.check_topology(0, 0, 0, 0, 'high', True)
A dedicated CPU in vertical polarization can only have a high entitlement. Let's check this. Signed-off-by: Pierre Morel <pmorel@linux.ibm.com> --- tests/avocado/s390_topology.py | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+)