Polarization is changed on a request from the guest.
Let's verify the polarization is accordingly set by QEMU.
Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx>
---
tests/avocado/s390_topology.py | 38 +++++++++++++++++++++++++++++++++-
1 file changed, 37 insertions(+), 1 deletion(-)
diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py
index c908111e94..70bd3a8b5a 100644
--- a/tests/avocado/s390_topology.py
+++ b/tests/avocado/s390_topology.py
@@ -107,6 +107,15 @@ def kernel_init(self):
'-initrd', initrd_path,
'-append', kernel_command_line)
+ def system_init(self):
+ self.log.info("System init")
+ exec_command(self, 'mount proc -t proc /proc')
+ time.sleep(0.2)
+ exec_command(self, 'mount sys -t sysfs /sys')
+ time.sleep(0.2)
+ exec_command_and_wait_for_pattern(self,
+ '/bin/cat /sys/devices/system/cpu/dispatching', '0')
+
def test_single(self):
self.kernel_init()
self.vm.launch()
@@ -116,7 +125,6 @@ def test_single(self):
def test_default(self):
"""
This test checks the implicite topology.
-
:avocado: tags=arch:s390x
:avocado: tags=machine:s390-ccw-virtio
"""
@@ -194,3 +202,31 @@ def test_hotplug_full(self):
self.wait_for_console_pattern('no job control')
self.check_topology(1, 1, 1, 1, 'horizontal', False)
+ def test_polarisation(self):
+ """
+ This test verifies that QEMU modifies the entitlement change 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()
+ self.check_topology(0, 0, 0, 0, 'horizontal', False)
+
+ 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, 'medium', False)
+
+ 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, 'horizontal', False)
--
2.31.1
