tests/functional/test_s390x_topology.py

3 # Functional test that boots a Linux kernel and checks the console
11 # later.  See the COPYING file in the top-level directory.
24     See: docs/system/s390x/cpu-topology.rst.
27     - implicitly from the '-smp' argument by completing each topology
30     - explicitly from the '-device' argument on the QEMU command line
31     - explicitly by hotplug of a new CPU using QMP or HMP
32     - it is modified by using QMP 'set-cpu-topology'
47          '/fedora-secondary/releases/35/Server/s390x/os'
53          '/fedora-secondary/releases/35/Server/s390x/os'
59                                  failure_message='Kernel panic - not syncing',
63         res = self.vm.qmp('query-cpus-fast')
66             core = cpu['props']['core-id']
67             socket = cpu['props']['socket-id']
68             book = cpu['props']['book-id']
69             drawer = cpu['props']['drawer-id']
92         self.vm.add_args('-nographic',
93                          '-enable-kvm',
94                          '-cpu', 'max,ctop=on',
95                          '-m', '512',
96                          '-kernel', kernel_path,
97                          '-initrd', initrd_path,
98                          '-append', kernel_command_line)
101         self.log.info("System init")
103                 """ mount proc -t proc /proc;
104                     mount sys -t sysfs /sys;
105                     cat /sys/devices/system/cpu/dispatching """,
112         self.set_machine('s390-ccw-virtio')
122         self.set_machine('s390-ccw-virtio')
124         self.vm.add_args('-smp',
147         self.set_machine('s390-ccw-virtio')
149         self.vm.add_args('-smp',
155         res = self.vm.qmp('set-cpu-topology',
156                           {'core-id': 0, 'socket-id': 2, 'entitlement': 'low'})
162         This test verifies that a CPU defined with the '-device'
165         self.set_machine('s390-ccw-virtio')
167         self.vm.add_args('-smp',
169         self.vm.add_args('-device', 'max-s390x-cpu,core-id=10')
170         self.vm.add_args('-device',
171                          'max-s390x-cpu,'
172                          'core-id=1,socket-id=0,book-id=1,drawer-id=1,entitlement=low')
173         self.vm.add_args('-device',
174                          'max-s390x-cpu,'
175                          'core-id=2,socket-id=0,book-id=1,drawer-id=1,entitlement=medium')
176         self.vm.add_args('-device',
177                          'max-s390x-cpu,'
178                          'core-id=3,socket-id=1,book-id=1,drawer-id=1,entitlement=high')
179         self.vm.add_args('-device',
180                          'max-s390x-cpu,'
181                          'core-id=4,socket-id=1,book-id=1,drawer-id=1')
182         self.vm.add_args('-device',
183                          'max-s390x-cpu,'
184                          'core-id=5,socket-id=2,book-id=1,drawer-id=1,dedicated=true')
199                 f'echo {dispatching} > /sys/devices/system/cpu/dispatching')
202                 'cat /sys/devices/system/cpu/dispatching', dispatching)
210         self.set_machine('s390-ccw-virtio')
216         res = self.vm.qmp('query-s390x-cpu-polarization')
221         res = self.vm.qmp('query-s390x-cpu-polarization')
226         res = self.vm.qmp('query-s390x-cpu-polarization')
235                 "timeout 1 sh -c 'while true",
237                 '    syspath="/sys/devices/system/cpu/cpu0/polarization"',
254         self.set_machine('s390-ccw-virtio')
268         res = self.vm.qmp('set-cpu-topology',
269                           {'core-id': 0, 'entitlement': 'low'})
274         res = self.vm.qmp('set-cpu-topology',
275                           {'core-id': 0, 'entitlement': 'medium'})
280         res = self.vm.qmp('set-cpu-topology',
281                           {'core-id': 0, 'entitlement': 'high'})
298         self.set_machine('s390-ccw-virtio')
307         res = self.vm.qmp('set-cpu-topology',
308                           {'core-id': 0, 'dedicated': True})
325         The socket-id 0 on book-id 0 already contains CPUs 0 and 1 and can
326         not accept any new CPU while socket-id 0 on book-id 1 is free.
328         self.set_machine('s390-ccw-virtio')
330         self.vm.add_args('-smp',
337         res = self.vm.qmp('set-cpu-topology',
338                           {'core-id': 2, 'socket-id': 0, 'book-id': 0})
341         res = self.vm.qmp('set-cpu-topology',
342                           {'core-id': 2, 'socket-id': 0, 'book-id': 1})
350         self.set_machine('s390-ccw-virtio')
357         res = self.vm.qmp('set-cpu-topology',
358                           {'core-id': 0, 'dedicated': True})
367         res = self.vm.qmp('set-cpu-topology',
368                           {'core-id': 0, 'entitlement': 'low', 'dedicated': True})
371         res = self.vm.qmp('set-cpu-topology',
372                           {'core-id': 0, 'entitlement': 'low'})
375         res = self.vm.qmp('set-cpu-topology',
376                           {'core-id': 0, 'entitlement': 'medium', 'dedicated': True})
379         res = self.vm.qmp('set-cpu-topology',
380                           {'core-id': 0, 'entitlement': 'medium'})
383         res = self.vm.qmp('set-cpu-topology',
384                           {'core-id': 0, 'entitlement': 'low', 'dedicated': False})
387         res = self.vm.qmp('set-cpu-topology',
388                           {'core-id': 0, 'entitlement': 'medium', 'dedicated': False})
396         self.set_machine('s390-ccw-virtio')
403         res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'drawer-id': 1})
406         res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'book-id': 1})
409         res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'socket-id': 1})