xref: /qemu/tests/functional/test_s390x_ccw_virtio.py (revision 93eaabde61cf048660a01dc2b5f55c061fd73e6b) 
1# Functional test that boots an s390x Linux guest with ccw and PCI devices
2# attached and checks whether the devices are recognized by Linux
3#
4# Copyright (c) 2020 Red Hat, Inc.
5#
6# Author:
7#  Cornelia Huck <cohuck@redhat.com>
8#
9# This work is licensed under the terms of the GNU GPL, version 2 or
10# later.  See the COPYING file in the top-level directory.
11
12import os
13import tempfile
14
15from avocado_qemu import Test
16from avocado_qemu import exec_command_and_wait_for_pattern
17from avocado_qemu import wait_for_console_pattern
18from avocado.utils import archive
19
20class S390CCWVirtioMachine(Test):
21    KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 '
22
23    timeout = 120
24
25    def wait_for_console_pattern(self, success_message, vm=None):
26        wait_for_console_pattern(self, success_message,
27                                 failure_message='Kernel panic - not syncing',
28                                 vm=vm)
29
30    def wait_for_crw_reports(self):
31        exec_command_and_wait_for_pattern(self,
32                        'while ! (dmesg -c | grep CRW) ; do sleep 1 ; done',
33                        'CRW reports')
34
35    dmesg_clear_count = 1
36    def clear_guest_dmesg(self):
37        exec_command_and_wait_for_pattern(self, 'dmesg -c > /dev/null; '
38                    'echo dm_clear\ ' + str(self.dmesg_clear_count),
39                    'dm_clear ' + str(self.dmesg_clear_count))
40        self.dmesg_clear_count += 1
41
42    def test_s390x_devices(self):
43
44        """
45        :avocado: tags=arch:s390x
46        :avocado: tags=machine:s390-ccw-virtio
47        """
48
49        kernel_url = ('https://snapshot.debian.org/archive/debian/'
50                      '20201126T092837Z/dists/buster/main/installer-s390x/'
51                      '20190702+deb10u6/images/generic/kernel.debian')
52        kernel_hash = '5821fbee57d6220a067a8b967d24595621aa1eb6'
53        kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
54
55        initrd_url = ('https://snapshot.debian.org/archive/debian/'
56                      '20201126T092837Z/dists/buster/main/installer-s390x/'
57                      '20190702+deb10u6/images/generic/initrd.debian')
58        initrd_hash = '81ba09c97bef46e8f4660ac25b4ac0a5be3a94d6'
59        initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
60
61        self.vm.set_console()
62        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE +
63                              'console=sclp0 root=/dev/ram0 BOOT_DEBUG=3')
64        self.vm.add_args('-nographic',
65                         '-kernel', kernel_path,
66                         '-initrd', initrd_path,
67                         '-append', kernel_command_line,
68                         '-device', 'virtio-net-ccw,devno=fe.1.1111',
69                         '-device',
70                         'virtio-rng-ccw,devno=fe.2.0000,max_revision=0,id=rn1',
71                         '-device',
72                         'virtio-rng-ccw,devno=fe.3.1234,max_revision=2,id=rn2',
73                         '-device', 'zpci,uid=5,target=zzz',
74                         '-device', 'virtio-net-pci,id=zzz',
75                         '-device', 'zpci,uid=0xa,fid=12,target=serial',
76                         '-device', 'virtio-serial-pci,id=serial',
77                         '-device', 'virtio-balloon-ccw')
78        self.vm.launch()
79
80        shell_ready = "sh: can't access tty; job control turned off"
81        self.wait_for_console_pattern(shell_ready)
82        # first debug shell is too early, we need to wait for device detection
83        exec_command_and_wait_for_pattern(self, 'exit', shell_ready)
84
85        ccw_bus_ids="0.1.1111  0.2.0000  0.3.1234"
86        pci_bus_ids="0005:00:00.0  000a:00:00.0"
87        exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/',
88                                          ccw_bus_ids)
89        exec_command_and_wait_for_pattern(self, 'ls /sys/bus/pci/devices/',
90                                          pci_bus_ids)
91        # check that the device at 0.2.0000 is in legacy mode, while the
92        # device at 0.3.1234 has the virtio-1 feature bit set
93        virtio_rng_features="00000000000000000000000000001100" + \
94                            "10000000000000000000000000000000"
95        virtio_rng_features_legacy="00000000000000000000000000001100" + \
96                                   "00000000000000000000000000000000"
97        exec_command_and_wait_for_pattern(self,
98                        'cat /sys/bus/ccw/devices/0.2.0000/virtio?/features',
99                        virtio_rng_features_legacy)
100        exec_command_and_wait_for_pattern(self,
101                        'cat /sys/bus/ccw/devices/0.3.1234/virtio?/features',
102                        virtio_rng_features)
103        # check that /dev/hwrng works - and that it's gone after ejecting
104        exec_command_and_wait_for_pattern(self,
105                        'dd if=/dev/hwrng of=/dev/null bs=1k count=10',
106                        '10+0 records out')
107        self.clear_guest_dmesg()
108        self.vm.command('device_del', id='rn1')
109        self.wait_for_crw_reports()
110        self.clear_guest_dmesg()
111        self.vm.command('device_del', id='rn2')
112        self.wait_for_crw_reports()
113        exec_command_and_wait_for_pattern(self,
114                        'dd if=/dev/hwrng of=/dev/null bs=1k count=10',
115                        'dd: /dev/hwrng: No such device')
116        # verify that we indeed have virtio-net devices (without having the
117        # virtio-net driver handy)
118        exec_command_and_wait_for_pattern(self,
119                                    'cat /sys/bus/ccw/devices/0.1.1111/cutype',
120                                    '3832/01')
121        exec_command_and_wait_for_pattern(self,
122                    'cat /sys/bus/pci/devices/0005\:00\:00.0/subsystem_vendor',
123                    '0x1af4')
124        exec_command_and_wait_for_pattern(self,
125                    'cat /sys/bus/pci/devices/0005\:00\:00.0/subsystem_device',
126                    '0x0001')
127        # check fid propagation
128        exec_command_and_wait_for_pattern(self,
129                        'cat /sys/bus/pci/devices/000a\:00\:00.0/function_id',
130                        '0x0000000c')
131        # add another device
132        self.clear_guest_dmesg()
133        self.vm.command('device_add', driver='virtio-net-ccw',
134                        devno='fe.0.4711', id='net_4711')
135        self.wait_for_crw_reports()
136        exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/',
137                                          '0.0.4711')
138        # and detach it again
139        self.clear_guest_dmesg()
140        self.vm.command('device_del', id='net_4711')
141        self.vm.event_wait(name='DEVICE_DELETED',
142                           match={'data': {'device': 'net_4711'}})
143        self.wait_for_crw_reports()
144        exec_command_and_wait_for_pattern(self,
145                                          'ls /sys/bus/ccw/devices/0.0.4711',
146                                          'No such file or directory')
147        # test the virtio-balloon device
148        exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo',
149                                          'MemTotal:         115640 kB')
150        self.vm.command('human-monitor-command', command_line='balloon 96')
151        exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo',
152                                          'MemTotal:          82872 kB')
153        self.vm.command('human-monitor-command', command_line='balloon 128')
154        exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo',
155                                          'MemTotal:         115640 kB')
156
157
158    def test_s390x_fedora(self):
159
160        """
161        :avocado: tags=arch:s390x
162        :avocado: tags=machine:s390-ccw-virtio
163        :avocado: tags=device:virtio-gpu
164        :avocado: tags=device:virtio-crypto
165        :avocado: tags=device:virtio-net
166        """
167
168        kernel_url = ('https://archives.fedoraproject.org/pub/archive'
169                      '/fedora-secondary/releases/31/Server/s390x/os'
170                      '/images/kernel.img')
171        kernel_hash = 'b93d1efcafcf29c1673a4ce371a1f8b43941cfeb'
172        kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
173
174        initrd_url = ('https://archives.fedoraproject.org/pub/archive'
175                      '/fedora-secondary/releases/31/Server/s390x/os'
176                      '/images/initrd.img')
177        initrd_hash = '3de45d411df5624b8d8ef21cd0b44419ab59b12f'
178        initrd_path_xz = self.fetch_asset(initrd_url, asset_hash=initrd_hash)
179        initrd_path = os.path.join(self.workdir, 'initrd-raw.img')
180        archive.lzma_uncompress(initrd_path_xz, initrd_path)
181
182        self.vm.set_console()
183        kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE + ' audit=0 '
184                              'rd.plymouth=0 plymouth.enable=0 rd.rescue')
185        self.vm.add_args('-nographic',
186                         '-smp', '4',
187                         '-m', '512',
188                         '-name', 'Some Guest Name',
189                         '-uuid', '30de4fd9-b4d5-409e-86a5-09b387f70bfa',
190                         '-kernel', kernel_path,
191                         '-initrd', initrd_path,
192                         '-append', kernel_command_line,
193                         '-device', 'zpci,uid=7,target=n',
194                         '-device', 'virtio-net-pci,id=n,mac=02:ca:fe:fa:ce:12',
195                         '-device', 'virtio-rng-ccw,devno=fe.1.9876',
196                         '-device', 'virtio-gpu-ccw,devno=fe.2.5432')
197        self.vm.launch()
198        self.wait_for_console_pattern('Entering emergency mode')
199
200        # Some tests to see whether the CLI options have been considered:
201        self.log.info("Test whether QEMU CLI options have been considered")
202        exec_command_and_wait_for_pattern(self, 'lspci',
203                             '0007:00:00.0 Class 0200: Device 1af4:1000')
204        exec_command_and_wait_for_pattern(self,
205                             'cat /sys/class/net/enP7p0s0/address',
206                             '02:ca:fe:fa:ce:12')
207        exec_command_and_wait_for_pattern(self, 'lscss', '0.1.9876')
208        exec_command_and_wait_for_pattern(self, 'lscss', '0.2.5432')
209        exec_command_and_wait_for_pattern(self, 'cat /proc/cpuinfo',
210                             'processors    : 4')
211        exec_command_and_wait_for_pattern(self, 'grep MemTotal /proc/meminfo',
212                             'MemTotal:         499848 kB')
213        exec_command_and_wait_for_pattern(self, 'grep Name /proc/sysinfo',
214                             'Extended Name:   Some Guest Name')
215        exec_command_and_wait_for_pattern(self, 'grep UUID /proc/sysinfo',
216                             '30de4fd9-b4d5-409e-86a5-09b387f70bfa')
217
218        # Disable blinking cursor, then write some stuff into the framebuffer.
219        # QEMU's PPM screendumps contain uncompressed 24-bit values, while the
220        # framebuffer uses 32-bit, so we pad our text with some spaces when
221        # writing to the framebuffer. Since the PPM is uncompressed, we then
222        # can simply read the written "magic bytes" back from the PPM file to
223        # check whether the framebuffer is working as expected.
224        self.log.info("Test screendump of virtio-gpu device")
225        exec_command_and_wait_for_pattern(self,
226            'echo -e "\e[?25l" > /dev/tty0', ':/#')
227        exec_command_and_wait_for_pattern(self, 'for ((i=0;i<250;i++)); do '
228            'echo " The  qu ick  fo x j ump s o ver  a  laz y d og" >> fox.txt;'
229            'done',
230            ':/#')
231        exec_command_and_wait_for_pattern(self,
232            'dd if=fox.txt of=/dev/fb0 bs=1000 oflag=sync,nocache ; rm fox.txt',
233            '12+0 records out')
234        with tempfile.NamedTemporaryFile(suffix='.ppm',
235                                         prefix='qemu-scrdump-') as ppmfile:
236            self.vm.command('screendump', filename=ppmfile.name)
237            ppmfile.seek(0)
238            line = ppmfile.readline()
239            self.assertEqual(line, b"P6\n")
240            line = ppmfile.readline()
241            self.assertEqual(line, b"1024 768\n")
242            line = ppmfile.readline()
243            self.assertEqual(line, b"255\n")
244            line = ppmfile.readline(256)
245            self.assertEqual(line, b"The quick fox jumps over a lazy dog\n")
246
247        # Hot-plug a virtio-crypto device and see whether it gets accepted
248        self.log.info("Test hot-plug virtio-crypto device")
249        self.clear_guest_dmesg()
250        self.vm.command('object-add', qom_type='cryptodev-backend-builtin',
251                        id='cbe0')
252        self.vm.command('device_add', driver='virtio-crypto-ccw', id='crypdev0',
253                        cryptodev='cbe0', devno='fe.0.2342')
254        exec_command_and_wait_for_pattern(self,
255                        'while ! (dmesg -c | grep Accelerator.device) ; do'
256                        ' sleep 1 ; done', 'Accelerator device is ready')
257        exec_command_and_wait_for_pattern(self, 'lscss', '0.0.2342')
258        self.vm.command('device_del', id='crypdev0')
259        self.vm.command('object-del', id='cbe0')
260        exec_command_and_wait_for_pattern(self,
261                        'while ! (dmesg -c | grep Start.virtcrypto_remove) ; do'
262                        ' sleep 1 ; done', 'Start virtcrypto_remove.')
263