333168efe5
There was a race condition in the first test where there was already the "crw" output in the dmesg, but the "0.0.4711" entry has not been created in the /sys fs yet. Fix it by waiting until it is there. The second test has even more problems on gitlab-CI. Even after adding some more synchronization points (that wait for some messages in the "dmesg" output to make sure that the modules got loaded correctly), there are still occasionally some hangs in this test when it is running in the gitlab-CI. So far I was unable to reproduce these hangs locally on my computer, so this issue might take a while to debug. Thus disable the 2nd test in the gitlab-CI until the problems are better understood and fixed. Signed-off-by: Thomas Huth <thuth@redhat.com> Tested-by: Willian Rampazzo <willianr@redhat.com> Reviewed-by: Willian Rampazzo <willianr@redhat.com> Message-Id: <20210108185645.86351-1-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
273 lines
14 KiB
Python
273 lines
14 KiB
Python
# 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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import os
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import tempfile
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from avocado import skipIf
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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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from avocado.utils import archive
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class S390CCWVirtioMachine(Test):
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KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
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timeout = 120
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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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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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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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'-device',
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'virtio-rng-ccw,devno=fe.2.0000,max_revision=0,id=rn1',
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'-device',
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'virtio-rng-ccw,devno=fe.3.1234,max_revision=2,id=rn2',
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'-device', 'zpci,uid=5,target=zzz',
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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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'-device', 'virtio-balloon-ccw')
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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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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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exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/',
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ccw_bus_ids)
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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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# 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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# check that /dev/hwrng works - and that it's gone after ejecting
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exec_command_and_wait_for_pattern(self,
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'dd if=/dev/hwrng of=/dev/null bs=1k count=10',
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'10+0 records out')
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self.clear_guest_dmesg()
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self.vm.command('device_del', id='rn1')
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self.wait_for_crw_reports()
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self.clear_guest_dmesg()
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self.vm.command('device_del', id='rn2')
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self.wait_for_crw_reports()
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exec_command_and_wait_for_pattern(self,
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'dd if=/dev/hwrng of=/dev/null bs=1k count=10',
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'dd: /dev/hwrng: No such device')
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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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# 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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# add another device
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self.clear_guest_dmesg()
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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, 'for i in 1 2 3 4 5 6 7 ; do '
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'if [ -e /sys/bus/ccw/devices/*4711 ]; then break; fi ;'
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'sleep 1 ; done ; 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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# test the virtio-balloon device
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exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo',
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'MemTotal: 115640 kB')
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self.vm.command('human-monitor-command', command_line='balloon 96')
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exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo',
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'MemTotal: 82872 kB')
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self.vm.command('human-monitor-command', command_line='balloon 128')
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exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo',
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'MemTotal: 115640 kB')
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@skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
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def test_s390x_fedora(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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:avocado: tags=device:virtio-gpu
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:avocado: tags=device:virtio-crypto
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:avocado: tags=device:virtio-net
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"""
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kernel_url = ('https://archives.fedoraproject.org/pub/archive'
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'/fedora-secondary/releases/31/Server/s390x/os'
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'/images/kernel.img')
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kernel_hash = 'b93d1efcafcf29c1673a4ce371a1f8b43941cfeb'
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kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
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initrd_url = ('https://archives.fedoraproject.org/pub/archive'
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'/fedora-secondary/releases/31/Server/s390x/os'
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'/images/initrd.img')
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initrd_hash = '3de45d411df5624b8d8ef21cd0b44419ab59b12f'
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initrd_path_xz = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
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initrd_path = os.path.join(self.workdir, 'initrd-raw.img')
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archive.lzma_uncompress(initrd_path_xz, initrd_path)
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self.vm.set_console()
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kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE + ' audit=0 '
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'rd.plymouth=0 plymouth.enable=0 rd.rescue')
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self.vm.add_args('-nographic',
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'-smp', '4',
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'-m', '512',
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'-name', 'Some Guest Name',
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'-uuid', '30de4fd9-b4d5-409e-86a5-09b387f70bfa',
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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', 'zpci,uid=7,target=n',
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'-device', 'virtio-net-pci,id=n,mac=02:ca:fe:fa:ce:12',
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'-device', 'virtio-rng-ccw,devno=fe.1.9876',
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'-device', 'virtio-gpu-ccw,devno=fe.2.5432')
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self.vm.launch()
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self.wait_for_console_pattern('Entering emergency mode')
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# Some tests to see whether the CLI options have been considered:
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self.log.info("Test whether QEMU CLI options have been considered")
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exec_command_and_wait_for_pattern(self,
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'while ! (dmesg | grep enP7p0s0) ; do sleep 1 ; done',
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'virtio_net virtio0 enP7p0s0: renamed')
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exec_command_and_wait_for_pattern(self, 'lspci',
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'0007:00:00.0 Class 0200: Device 1af4:1000')
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exec_command_and_wait_for_pattern(self,
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'cat /sys/class/net/enP7p0s0/address',
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'02:ca:fe:fa:ce:12')
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exec_command_and_wait_for_pattern(self, 'lscss', '0.1.9876')
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exec_command_and_wait_for_pattern(self, 'lscss', '0.2.5432')
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exec_command_and_wait_for_pattern(self, 'cat /proc/cpuinfo',
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'processors : 4')
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exec_command_and_wait_for_pattern(self, 'grep MemTotal /proc/meminfo',
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'MemTotal: 499848 kB')
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exec_command_and_wait_for_pattern(self, 'grep Name /proc/sysinfo',
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'Extended Name: Some Guest Name')
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exec_command_and_wait_for_pattern(self, 'grep UUID /proc/sysinfo',
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'30de4fd9-b4d5-409e-86a5-09b387f70bfa')
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# Disable blinking cursor, then write some stuff into the framebuffer.
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# QEMU's PPM screendumps contain uncompressed 24-bit values, while the
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# framebuffer uses 32-bit, so we pad our text with some spaces when
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# writing to the framebuffer. Since the PPM is uncompressed, we then
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# can simply read the written "magic bytes" back from the PPM file to
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# check whether the framebuffer is working as expected.
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self.log.info("Test screendump of virtio-gpu device")
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exec_command_and_wait_for_pattern(self,
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'while ! (dmesg | grep gpudrmfb) ; do sleep 1 ; done',
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'virtio_gpudrmfb frame buffer device')
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exec_command_and_wait_for_pattern(self,
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'echo -e "\e[?25l" > /dev/tty0', ':/#')
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exec_command_and_wait_for_pattern(self, 'for ((i=0;i<250;i++)); do '
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'echo " The qu ick fo x j ump s o ver a laz y d og" >> fox.txt;'
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'done',
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':/#')
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exec_command_and_wait_for_pattern(self,
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'dd if=fox.txt of=/dev/fb0 bs=1000 oflag=sync,nocache ; rm fox.txt',
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'12+0 records out')
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with tempfile.NamedTemporaryFile(suffix='.ppm',
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prefix='qemu-scrdump-') as ppmfile:
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self.vm.command('screendump', filename=ppmfile.name)
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ppmfile.seek(0)
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line = ppmfile.readline()
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self.assertEqual(line, b"P6\n")
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line = ppmfile.readline()
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self.assertEqual(line, b"1024 768\n")
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line = ppmfile.readline()
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self.assertEqual(line, b"255\n")
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line = ppmfile.readline(256)
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self.assertEqual(line, b"The quick fox jumps over a lazy dog\n")
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# Hot-plug a virtio-crypto device and see whether it gets accepted
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self.log.info("Test hot-plug virtio-crypto device")
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self.clear_guest_dmesg()
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self.vm.command('object-add', qom_type='cryptodev-backend-builtin',
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id='cbe0')
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self.vm.command('device_add', driver='virtio-crypto-ccw', id='crypdev0',
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cryptodev='cbe0', devno='fe.0.2342')
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exec_command_and_wait_for_pattern(self,
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'while ! (dmesg -c | grep Accelerator.device) ; do'
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' sleep 1 ; done', 'Accelerator device is ready')
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exec_command_and_wait_for_pattern(self, 'lscss', '0.0.2342')
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self.vm.command('device_del', id='crypdev0')
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self.vm.command('object-del', id='cbe0')
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exec_command_and_wait_for_pattern(self,
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'while ! (dmesg -c | grep Start.virtcrypto_remove) ; do'
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' sleep 1 ; done', 'Start virtcrypto_remove.')
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