tests/avocado: s390x cpu topology test socket full

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

Signed-off-by: Pierre Morel <pmorel@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20231016183925.2384704-20-nsg@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
index 3661048f4cfa46dcea07fedacae3fbef1b219ef4..a63c2b29239f73ac7f29d96edc32f09f13c3114e 100644 (file)
--- a/tests/avocado/s390_topology.py
+++ b/tests/avocado/s390_topology.py
@@ -338,3 +338,29 @@ class S390CPUTopology(QemuSystemTest):
         self.guest_set_dispatching('0');
         self.check_topology(0, 0, 0, 0, 'high', True)
         self.check_polarization("horizontal")
+
+
+    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',
+                         '3,drawers=2,books=2,sockets=3,cores=2,maxcpus=24')
+        self.vm.launch()
+        self.wait_until_booted()
+
+        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'], {})