[v20,18/21] tests/avocado: s390x cpu topology test socket full

Commit Message

Pierre Morel April 25, 2023, 4:14 p.m. UTC

This test verifies that QMP set-cpu-topology does not accept
to overload a socket.

Signed-off-by: Pierre Morel <[e-mail]>
---
 tests/avocado/s390_topology.py | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

Patch

diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
index 59ec253f34..dfa33ada48 100644
--- a/tests/avocado/s390_topology.py
+++ b/tests/avocado/s390_topology.py
@@ -334,3 +334,30 @@  def test_dedicated(self):
                 '/bin/cat /sys/devices/system/cpu/dispatching', '0')
 
         self.check_topology(0, 0, 0, 0, 'high', True)
+
+    def test_socket_full(self):
+        """
+        This test verifies that QEMU does not accept to overload a socket.
+        The socket-id 0 on book-id 0 already contains CPUs 0 and 1 and can
+        not accept any new CPU while socket-id 0 on book-id 1 is free.
+
+        :avocado: tags=arch:s390x
+        :avocado: tags=machine:s390-ccw-virtio
+        """
+        self.kernel_init()
+        self.vm.add_args('-smp',
+                         '1,drawers=2,books=2,sockets=3,cores=2,maxcpus=24')
+        self.vm.add_args('-device', 'z14-s390x-cpu,core-id=1')
+        self.vm.add_args('-device', 'z14-s390x-cpu,core-id=2')
+        self.vm.launch()
+        self.wait_for_console_pattern('no job control')
+
+        self.system_init()
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 2, 'socket-id': 0, 'book-id': 0})
+        self.assertEqual(res['error']['class'], 'GenericError')
+
+        res = self.vm.qmp('set-cpu-topology',
+                          {'core-id': 2, 'socket-id': 0, 'book-id': 1})
+        self.assertEqual(res['return'], {})