| #!/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 |
| from qemu_test.utils import lzma_uncompress |
| |
| 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_xz = self.ASSET_F31_INITRD.fetch() |
| initrd_path = os.path.join(self.workdir, 'initrd-raw.img') |
| lzma_uncompress(initrd_path_xz, initrd_path) |
| |
| 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() |
