diff options
Diffstat (limited to 'tests/functional/s390x/test_ccw_virtio.py')
| -rwxr-xr-x | tests/functional/s390x/test_ccw_virtio.py | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/tests/functional/s390x/test_ccw_virtio.py b/tests/functional/s390x/test_ccw_virtio.py new file mode 100755 index 0000000000..453711aa0f --- /dev/null +++ b/tests/functional/s390x/test_ccw_virtio.py @@ -0,0 +1,274 @@ +#!/usr/bin/env python3 +# +# Functional test that boots an s390x Linux guest with ccw and PCI devices +# attached and checks whether the devices are recognized by Linux +# +# Copyright (c) 2020 Red Hat, Inc. +# +# Author: +# Cornelia Huck <cohuck@redhat.com> +# +# This work is licensed under the terms of the GNU GPL, version 2 or +# later. See the COPYING file in the top-level directory. + +import os +import tempfile + +from qemu_test import QemuSystemTest, Asset +from qemu_test import exec_command_and_wait_for_pattern +from qemu_test import wait_for_console_pattern + + +class S390CCWVirtioMachine(QemuSystemTest): + KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 ' + + timeout = 120 + + ASSET_BUSTER_KERNEL = Asset( + ('https://snapshot.debian.org/archive/debian/' + '20201126T092837Z/dists/buster/main/installer-s390x/' + '20190702+deb10u6/images/generic/kernel.debian'), + 'd411d17c39ae7ad38d27534376cbe88b68b403c325739364122c2e6f1537e818') + ASSET_BUSTER_INITRD = Asset( + ('https://snapshot.debian.org/archive/debian/' + '20201126T092837Z/dists/buster/main/installer-s390x/' + '20190702+deb10u6/images/generic/initrd.debian'), + '836bbd0fe6a5ca81274c28c2b063ea315ce1868660866e9b60180c575fef9fd5') + + ASSET_F31_KERNEL = Asset( + ('https://archives.fedoraproject.org/pub/archive' + '/fedora-secondary/releases/31/Server/s390x/os' + '/images/kernel.img'), + '480859574f3f44caa6cd35c62d70e1ac0609134e22ce2a954bbed9b110c06e0b') + ASSET_F31_INITRD = Asset( + ('https://archives.fedoraproject.org/pub/archive' + '/fedora-secondary/releases/31/Server/s390x/os' + '/images/initrd.img'), + '04c46095b2c49020b1c2327158898b7db747e4892ae319726192fb949716aa9c') + + def wait_for_console_pattern(self, success_message, vm=None): + wait_for_console_pattern(self, success_message, + failure_message='Kernel panic - not syncing', + vm=vm) + + def wait_for_crw_reports(self): + exec_command_and_wait_for_pattern(self, + 'while ! (dmesg -c | grep CRW) ; do sleep 1 ; done', + 'CRW reports') + + dmesg_clear_count = 1 + def clear_guest_dmesg(self): + exec_command_and_wait_for_pattern(self, 'dmesg -c > /dev/null; ' + r'echo dm_clear\ ' + str(self.dmesg_clear_count), + r'dm_clear ' + str(self.dmesg_clear_count)) + self.dmesg_clear_count += 1 + + def test_s390x_devices(self): + self.set_machine('s390-ccw-virtio') + + kernel_path = self.ASSET_BUSTER_KERNEL.fetch() + initrd_path = self.ASSET_BUSTER_INITRD.fetch() + + self.vm.set_console() + kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE + + 'console=sclp0 root=/dev/ram0 BOOT_DEBUG=3') + self.vm.add_args('-nographic', + '-kernel', kernel_path, + '-initrd', initrd_path, + '-append', kernel_command_line, + '-cpu', 'max,prno-trng=off', + '-device', 'virtio-net-ccw,devno=fe.1.1111', + '-device', + 'virtio-rng-ccw,devno=fe.2.0000,max_revision=0,id=rn1', + '-device', + 'virtio-rng-ccw,devno=fe.3.1234,max_revision=2,id=rn2', + '-device', 'zpci,uid=5,target=zzz', + '-device', 'virtio-net-pci,id=zzz', + '-device', 'zpci,uid=0xa,fid=12,target=serial', + '-device', 'virtio-serial-pci,id=serial', + '-device', 'virtio-balloon-ccw') + self.vm.launch() + + shell_ready = "sh: can't access tty; job control turned off" + self.wait_for_console_pattern(shell_ready) + # first debug shell is too early, we need to wait for device detection + exec_command_and_wait_for_pattern(self, 'exit', shell_ready) + + ccw_bus_ids="0.1.1111 0.2.0000 0.3.1234" + pci_bus_ids="0005:00:00.0 000a:00:00.0" + exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/', + ccw_bus_ids) + exec_command_and_wait_for_pattern(self, 'ls /sys/bus/pci/devices/', + pci_bus_ids) + # check that the device at 0.2.0000 is in legacy mode, while the + # device at 0.3.1234 has the virtio-1 feature bit set + virtio_rng_features="00000000000000000000000000001100" + \ + "10000000000000000000000000000000" + virtio_rng_features_legacy="00000000000000000000000000001100" + \ + "00000000000000000000000000000000" + exec_command_and_wait_for_pattern(self, + 'cat /sys/bus/ccw/devices/0.2.0000/virtio?/features', + virtio_rng_features_legacy) + exec_command_and_wait_for_pattern(self, + 'cat /sys/bus/ccw/devices/0.3.1234/virtio?/features', + virtio_rng_features) + # check that /dev/hwrng works - and that it's gone after ejecting + exec_command_and_wait_for_pattern(self, + 'dd if=/dev/hwrng of=/dev/null bs=1k count=10', + '10+0 records out') + self.clear_guest_dmesg() + self.vm.cmd('device_del', id='rn1') + self.wait_for_crw_reports() + self.clear_guest_dmesg() + self.vm.cmd('device_del', id='rn2') + self.wait_for_crw_reports() + exec_command_and_wait_for_pattern(self, + 'dd if=/dev/hwrng of=/dev/null bs=1k count=10', + 'dd: /dev/hwrng: No such device') + # verify that we indeed have virtio-net devices (without having the + # virtio-net driver handy) + exec_command_and_wait_for_pattern(self, + 'cat /sys/bus/ccw/devices/0.1.1111/cutype', + '3832/01') + exec_command_and_wait_for_pattern(self, + r'cat /sys/bus/pci/devices/0005\:00\:00.0/subsystem_vendor', + r'0x1af4') + exec_command_and_wait_for_pattern(self, + r'cat /sys/bus/pci/devices/0005\:00\:00.0/subsystem_device', + r'0x0001') + # check fid propagation + exec_command_and_wait_for_pattern(self, + r'cat /sys/bus/pci/devices/000a\:00\:00.0/function_id', + r'0x0000000c') + # add another device + self.clear_guest_dmesg() + self.vm.cmd('device_add', driver='virtio-net-ccw', + devno='fe.0.4711', id='net_4711') + self.wait_for_crw_reports() + exec_command_and_wait_for_pattern(self, 'for i in 1 2 3 4 5 6 7 ; do ' + 'if [ -e /sys/bus/ccw/devices/*4711 ]; then break; fi ;' + 'sleep 1 ; done ; ls /sys/bus/ccw/devices/', + '0.0.4711') + # and detach it again + self.clear_guest_dmesg() + self.vm.cmd('device_del', id='net_4711') + self.vm.event_wait(name='DEVICE_DELETED', + match={'data': {'device': 'net_4711'}}) + self.wait_for_crw_reports() + exec_command_and_wait_for_pattern(self, + 'ls /sys/bus/ccw/devices/0.0.4711', + 'No such file or directory') + # test the virtio-balloon device + exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo', + 'MemTotal: 115640 kB') + self.vm.cmd('human-monitor-command', command_line='balloon 96') + exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo', + 'MemTotal: 82872 kB') + self.vm.cmd('human-monitor-command', command_line='balloon 128') + exec_command_and_wait_for_pattern(self, 'head -n 1 /proc/meminfo', + 'MemTotal: 115640 kB') + + + def test_s390x_fedora(self): + self.set_machine('s390-ccw-virtio') + + kernel_path = self.ASSET_F31_KERNEL.fetch() + + initrd_path = self.uncompress(self.ASSET_F31_INITRD, format="xz") + + self.vm.set_console() + kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE + ' audit=0 ' + 'rd.plymouth=0 plymouth.enable=0 rd.rescue') + self.vm.add_args('-nographic', + '-smp', '4', + '-m', '512', + '-name', 'Some Guest Name', + '-uuid', '30de4fd9-b4d5-409e-86a5-09b387f70bfa', + '-kernel', kernel_path, + '-initrd', initrd_path, + '-append', kernel_command_line, + '-device', 'zpci,uid=7,target=n', + '-device', 'virtio-net-pci,id=n,mac=02:ca:fe:fa:ce:12', + '-device', 'virtio-rng-ccw,devno=fe.1.9876', + '-device', 'virtio-gpu-ccw,devno=fe.2.5432') + self.vm.launch() + self.wait_for_console_pattern('Kernel command line: %s' + % kernel_command_line) + self.wait_for_console_pattern('Entering emergency mode') + + # Some tests to see whether the CLI options have been considered: + self.log.info("Test whether QEMU CLI options have been considered") + exec_command_and_wait_for_pattern(self, + 'while ! (dmesg | grep enP7p0s0) ; do sleep 1 ; done', + 'virtio_net virtio0 enP7p0s0: renamed') + exec_command_and_wait_for_pattern(self, 'lspci', + '0007:00:00.0 Class 0200: Device 1af4:1000') + exec_command_and_wait_for_pattern(self, + 'cat /sys/class/net/enP7p0s0/address', + '02:ca:fe:fa:ce:12') + exec_command_and_wait_for_pattern(self, 'lscss', '0.1.9876') + exec_command_and_wait_for_pattern(self, 'lscss', '0.2.5432') + exec_command_and_wait_for_pattern(self, 'cat /proc/cpuinfo', + 'processors : 4') + exec_command_and_wait_for_pattern(self, 'grep MemTotal /proc/meminfo', + 'MemTotal: 499848 kB') + exec_command_and_wait_for_pattern(self, 'grep Name /proc/sysinfo', + 'Extended Name: Some Guest Name') + exec_command_and_wait_for_pattern(self, 'grep UUID /proc/sysinfo', + '30de4fd9-b4d5-409e-86a5-09b387f70bfa') + + # Disable blinking cursor, then write some stuff into the framebuffer. + # QEMU's PPM screendumps contain uncompressed 24-bit values, while the + # framebuffer uses 32-bit, so we pad our text with some spaces when + # writing to the framebuffer. Since the PPM is uncompressed, we then + # can simply read the written "magic bytes" back from the PPM file to + # check whether the framebuffer is working as expected. + # Unfortunately, this test is flaky, so we don't run it by default + if os.getenv('QEMU_TEST_FLAKY_TESTS'): + self.log.info("Test screendump of virtio-gpu device") + exec_command_and_wait_for_pattern(self, + 'while ! (dmesg | grep gpudrmfb) ; do sleep 1 ; done', + 'virtio_gpudrmfb frame buffer device') + exec_command_and_wait_for_pattern(self, + r'echo -e "\e[?25l" > /dev/tty0', ':/#') + exec_command_and_wait_for_pattern(self, 'for ((i=0;i<250;i++)); do ' + 'echo " The qu ick fo x j ump s o ver a laz y d og" >> fox.txt;' + 'done', + ':/#') + exec_command_and_wait_for_pattern(self, + 'dd if=fox.txt of=/dev/fb0 bs=1000 oflag=sync,nocache ; rm fox.txt', + '12+0 records out') + with tempfile.NamedTemporaryFile(suffix='.ppm', + prefix='qemu-scrdump-') as ppmfile: + self.vm.cmd('screendump', filename=ppmfile.name) + ppmfile.seek(0) + line = ppmfile.readline() + self.assertEqual(line, b"P6\n") + line = ppmfile.readline() + self.assertEqual(line, b"1280 800\n") + line = ppmfile.readline() + self.assertEqual(line, b"255\n") + line = ppmfile.readline(256) + self.assertEqual(line, b"The quick fox jumps over a lazy dog\n") + else: + self.log.info("Skipped flaky screendump of virtio-gpu device test") + + # Hot-plug a virtio-crypto device and see whether it gets accepted + self.log.info("Test hot-plug virtio-crypto device") + self.clear_guest_dmesg() + self.vm.cmd('object-add', qom_type='cryptodev-backend-builtin', + id='cbe0') + self.vm.cmd('device_add', driver='virtio-crypto-ccw', id='crypdev0', + cryptodev='cbe0', devno='fe.0.2342') + exec_command_and_wait_for_pattern(self, + 'while ! (dmesg -c | grep Accelerator.device) ; do' + ' sleep 1 ; done', 'Accelerator device is ready') + exec_command_and_wait_for_pattern(self, 'lscss', '0.0.2342') + self.vm.cmd('device_del', id='crypdev0') + self.vm.cmd('object-del', id='cbe0') + exec_command_and_wait_for_pattern(self, + 'while ! (dmesg -c | grep Start.virtcrypto_remove) ; do' + ' sleep 1 ; done', 'Start virtcrypto_remove.') + +if __name__ == '__main__': + QemuSystemTest.main() |