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.
28     See: docs/system/s390x/cpu-topology.rst.
31     - implicitly from the '-smp' argument by completing each topology
34     - explicitly from the '-device' argument on the QEMU command line
35     - explicitly by hotplug of a new CPU using QMP or HMP
36     - it is modified by using QMP 'set-cpu-topology'
51          '/fedora-secondary/releases/35/Server/s390x/os'
57          '/fedora-secondary/releases/35/Server/s390x/os'
63                                  failure_message='Kernel panic - not syncing',
67         res = self.vm.qmp('query-cpus-fast')
70             core = cpu['props']['core-id']
71             socket = cpu['props']['socket-id']
72             book = cpu['props']['book-id']
73             drawer = cpu['props']['drawer-id']
93         initrd_path = os.path.join(self.workdir, 'initrd-raw.img')
98         self.vm.add_args('-nographic',
99                          '-enable-kvm',
100                          '-cpu', 'max,ctop=on',
101                          '-m', '512',
102                          '-kernel', kernel_path,
103                          '-initrd', initrd_path,
104                          '-append', kernel_command_line)
107         self.log.info("System init")
109                 """ mount proc -t proc /proc;
110                     mount sys -t sysfs /sys;
111                     cat /sys/devices/system/cpu/dispatching """,
118         self.set_machine('s390-ccw-virtio')
128         self.set_machine('s390-ccw-virtio')
130         self.vm.add_args('-smp',
153         self.set_machine('s390-ccw-virtio')
155         self.vm.add_args('-smp',
161         res = self.vm.qmp('set-cpu-topology',
162                           {'core-id': 0, 'socket-id': 2, 'entitlement': 'low'})
168         This test verifies that a CPU defined with the '-device'
171         self.set_machine('s390-ccw-virtio')
173         self.vm.add_args('-smp',
175         self.vm.add_args('-device', 'max-s390x-cpu,core-id=10')
176         self.vm.add_args('-device',
177                          'max-s390x-cpu,'
178                          'core-id=1,socket-id=0,book-id=1,drawer-id=1,entitlement=low')
179         self.vm.add_args('-device',
180                          'max-s390x-cpu,'
181                          'core-id=2,socket-id=0,book-id=1,drawer-id=1,entitlement=medium')
182         self.vm.add_args('-device',
183                          'max-s390x-cpu,'
184                          'core-id=3,socket-id=1,book-id=1,drawer-id=1,entitlement=high')
185         self.vm.add_args('-device',
186                          'max-s390x-cpu,'
187                          'core-id=4,socket-id=1,book-id=1,drawer-id=1')
188         self.vm.add_args('-device',
189                          'max-s390x-cpu,'
190                          'core-id=5,socket-id=2,book-id=1,drawer-id=1,dedicated=true')
205                 f'echo {dispatching} > /sys/devices/system/cpu/dispatching')
208                 'cat /sys/devices/system/cpu/dispatching', dispatching)
216         self.set_machine('s390-ccw-virtio')
222         res = self.vm.qmp('query-s390x-cpu-polarization')
227         res = self.vm.qmp('query-s390x-cpu-polarization')
232         res = self.vm.qmp('query-s390x-cpu-polarization')
241                 "timeout 1 sh -c 'while true",
243                 '    syspath="/sys/devices/system/cpu/cpu0/polarization"',
260         self.set_machine('s390-ccw-virtio')
274         res = self.vm.qmp('set-cpu-topology',
275                           {'core-id': 0, 'entitlement': 'low'})
280         res = self.vm.qmp('set-cpu-topology',
281                           {'core-id': 0, 'entitlement': 'medium'})
286         res = self.vm.qmp('set-cpu-topology',
287                           {'core-id': 0, 'entitlement': 'high'})
304         self.set_machine('s390-ccw-virtio')
313         res = self.vm.qmp('set-cpu-topology',
314                           {'core-id': 0, 'dedicated': True})
331         The socket-id 0 on book-id 0 already contains CPUs 0 and 1 and can
332         not accept any new CPU while socket-id 0 on book-id 1 is free.
334         self.set_machine('s390-ccw-virtio')
336         self.vm.add_args('-smp',
343         res = self.vm.qmp('set-cpu-topology',
344                           {'core-id': 2, 'socket-id': 0, 'book-id': 0})
347         res = self.vm.qmp('set-cpu-topology',
348                           {'core-id': 2, 'socket-id': 0, 'book-id': 1})
356         self.set_machine('s390-ccw-virtio')
363         res = self.vm.qmp('set-cpu-topology',
364                           {'core-id': 0, 'dedicated': True})
373         res = self.vm.qmp('set-cpu-topology',
374                           {'core-id': 0, 'entitlement': 'low', 'dedicated': True})
377         res = self.vm.qmp('set-cpu-topology',
378                           {'core-id': 0, 'entitlement': 'low'})
381         res = self.vm.qmp('set-cpu-topology',
382                           {'core-id': 0, 'entitlement': 'medium', 'dedicated': True})
385         res = self.vm.qmp('set-cpu-topology',
386                           {'core-id': 0, 'entitlement': 'medium'})
389         res = self.vm.qmp('set-cpu-topology',
390                           {'core-id': 0, 'entitlement': 'low', 'dedicated': False})
393         res = self.vm.qmp('set-cpu-topology',
394                           {'core-id': 0, 'entitlement': 'medium', 'dedicated': False})
402         self.set_machine('s390-ccw-virtio')
409         res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'drawer-id': 1})
412         res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'book-id': 1})
415         res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'socket-id': 1})