2020-11-26 14:01:58 +01:00
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# Functional test that boots an s390x Linux guest with ccw and PCI devices
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# attached and checks whether the devices are recognized by Linux
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#
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# Copyright (c) 2020 Red Hat, Inc.
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#
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# Author:
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# Cornelia Huck <cohuck@redhat.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or
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# later. See the COPYING file in the top-level directory.
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from avocado_qemu import Test
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from avocado_qemu import exec_command_and_wait_for_pattern
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from avocado_qemu import wait_for_console_pattern
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class S390CCWVirtioMachine(Test):
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KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
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2020-12-15 19:36:21 +01:00
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timeout = 120
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2020-11-26 14:01:58 +01:00
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def wait_for_console_pattern(self, success_message, vm=None):
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wait_for_console_pattern(self, success_message,
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failure_message='Kernel panic - not syncing',
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vm=vm)
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2020-12-15 19:36:21 +01:00
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def wait_for_crw_reports(self):
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exec_command_and_wait_for_pattern(self,
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'while ! (dmesg -c | grep CRW) ; do sleep 1 ; done',
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'CRW reports')
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dmesg_clear_count = 1
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def clear_guest_dmesg(self):
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exec_command_and_wait_for_pattern(self, 'dmesg -c > /dev/null; '
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'echo dm_clear\ ' + str(self.dmesg_clear_count),
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'dm_clear ' + str(self.dmesg_clear_count))
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self.dmesg_clear_count += 1
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2020-11-26 14:01:58 +01:00
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def test_s390x_devices(self):
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"""
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:avocado: tags=arch:s390x
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:avocado: tags=machine:s390-ccw-virtio
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"""
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kernel_url = ('https://snapshot.debian.org/archive/debian/'
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'20201126T092837Z/dists/buster/main/installer-s390x/'
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'20190702+deb10u6/images/generic/kernel.debian')
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kernel_hash = '5821fbee57d6220a067a8b967d24595621aa1eb6'
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kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
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initrd_url = ('https://snapshot.debian.org/archive/debian/'
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'20201126T092837Z/dists/buster/main/installer-s390x/'
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'20190702+deb10u6/images/generic/initrd.debian')
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initrd_hash = '81ba09c97bef46e8f4660ac25b4ac0a5be3a94d6'
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initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
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self.vm.set_console()
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kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
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'console=sclp0 root=/dev/ram0 BOOT_DEBUG=3')
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self.vm.add_args('-nographic',
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'-kernel', kernel_path,
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'-initrd', initrd_path,
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'-append', kernel_command_line,
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'-device', 'virtio-net-ccw,devno=fe.1.1111',
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2020-11-30 19:02:14 +01:00
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'-device',
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'virtio-rng-ccw,devno=fe.2.0000,max_revision=0',
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'-device',
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'virtio-rng-ccw,devno=fe.3.1234,max_revision=2',
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2020-11-26 14:01:58 +01:00
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'-device', 'zpci,uid=5,target=zzz',
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2020-11-30 19:02:16 +01:00
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'-device', 'virtio-net-pci,id=zzz',
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'-device', 'zpci,uid=0xa,fid=12,target=serial',
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'-device', 'virtio-serial-pci,id=serial')
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2020-11-26 14:01:58 +01:00
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self.vm.launch()
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shell_ready = "sh: can't access tty; job control turned off"
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self.wait_for_console_pattern(shell_ready)
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# first debug shell is too early, we need to wait for device detection
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exec_command_and_wait_for_pattern(self, 'exit', shell_ready)
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2020-11-30 19:02:14 +01:00
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ccw_bus_ids="0.1.1111 0.2.0000 0.3.1234"
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pci_bus_ids="0005:00:00.0 000a:00:00.0"
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2020-11-26 14:01:58 +01:00
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exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/',
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ccw_bus_ids)
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2020-11-26 14:01:58 +01:00
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exec_command_and_wait_for_pattern(self, 'ls /sys/bus/pci/devices/',
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pci_bus_ids)
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2020-11-30 19:02:14 +01:00
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# check that the device at 0.2.0000 is in legacy mode, while the
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# device at 0.3.1234 has the virtio-1 feature bit set
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virtio_rng_features="00000000000000000000000000001100" + \
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"10000000000000000000000000000000"
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virtio_rng_features_legacy="00000000000000000000000000001100" + \
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"00000000000000000000000000000000"
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exec_command_and_wait_for_pattern(self,
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'cat /sys/bus/ccw/devices/0.2.0000/virtio?/features',
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virtio_rng_features_legacy)
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exec_command_and_wait_for_pattern(self,
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'cat /sys/bus/ccw/devices/0.3.1234/virtio?/features',
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virtio_rng_features)
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2020-11-30 19:02:15 +01:00
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# verify that we indeed have virtio-net devices (without having the
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# virtio-net driver handy)
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exec_command_and_wait_for_pattern(self,
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'cat /sys/bus/ccw/devices/0.1.1111/cutype',
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'3832/01')
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exec_command_and_wait_for_pattern(self,
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'cat /sys/bus/pci/devices/0005\:00\:00.0/subsystem_vendor',
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'0x1af4')
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exec_command_and_wait_for_pattern(self,
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'cat /sys/bus/pci/devices/0005\:00\:00.0/subsystem_device',
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'0x0001')
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2020-11-30 19:02:16 +01:00
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# check fid propagation
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exec_command_and_wait_for_pattern(self,
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'cat /sys/bus/pci/devices/000a\:00\:00.0/function_id',
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'0x0000000c')
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2020-12-08 13:28:43 +01:00
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# add another device
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2020-12-15 19:36:21 +01:00
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self.clear_guest_dmesg()
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2020-12-08 13:28:43 +01:00
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self.vm.command('device_add', driver='virtio-net-ccw',
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devno='fe.0.4711', id='net_4711')
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self.wait_for_crw_reports()
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exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/',
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'0.0.4711')
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# and detach it again
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self.clear_guest_dmesg()
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self.vm.command('device_del', id='net_4711')
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self.vm.event_wait(name='DEVICE_DELETED',
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match={'data': {'device': 'net_4711'}})
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self.wait_for_crw_reports()
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exec_command_and_wait_for_pattern(self,
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'ls /sys/bus/ccw/devices/0.0.4711',
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'No such file or directory')
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