diff options
| -rw-r--r-- | tests/avocado/s390_topology.py | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/tests/avocado/s390_topology.py b/tests/avocado/s390_topology.py index 9078b45281..8166cee134 100644 --- a/tests/avocado/s390_topology.py +++ b/tests/avocado/s390_topology.py @@ -41,6 +41,7 @@ class S390CPUTopology(QemuSystemTest): The polarization is changed on a request from the guest. """ timeout = 90 + event_timeout = 10 KERNEL_COMMON_COMMAND_LINE = ('printk.time=0 ' 'root=/dev/ram ' @@ -103,6 +104,14 @@ class S390CPUTopology(QemuSystemTest): '-initrd', initrd_path, '-append', kernel_command_line) + def system_init(self): + self.log.info("System init") + exec_command_and_wait_for_pattern(self, + """ mount proc -t proc /proc; + mount sys -t sysfs /sys; + cat /sys/devices/system/cpu/dispatching """, + '0') + def test_single(self): """ This test checks the simplest topology with a single CPU. @@ -198,3 +207,39 @@ class S390CPUTopology(QemuSystemTest): self.check_topology(3, 1, 1, 1, 'high', False) self.check_topology(4, 1, 1, 1, 'medium', False) self.check_topology(5, 2, 1, 1, 'high', True) + + + def guest_set_dispatching(self, dispatching): + exec_command(self, + f'echo {dispatching} > /sys/devices/system/cpu/dispatching') + self.vm.event_wait('CPU_POLARIZATION_CHANGE', self.event_timeout) + exec_command_and_wait_for_pattern(self, + 'cat /sys/devices/system/cpu/dispatching', dispatching) + + + def test_polarization(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_until_booted() + + self.system_init() + res = self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'horizontal') + self.check_topology(0, 0, 0, 0, 'medium', False) + + self.guest_set_dispatching('1'); + res = self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'vertical') + self.check_topology(0, 0, 0, 0, 'medium', False) + + self.guest_set_dispatching('0'); + res = self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'horizontal') + self.check_topology(0, 0, 0, 0, 'medium', False) |