diff options
Diffstat (limited to 'tests/functional/s390x')
| -rw-r--r-- | tests/functional/s390x/meson.build | 17 | ||||
| -rwxr-xr-x | tests/functional/s390x/test_ccw_virtio.py | 274 | ||||
| -rwxr-xr-x | tests/functional/s390x/test_pxelinux.py | 130 | ||||
| -rwxr-xr-x | tests/functional/s390x/test_replay.py | 28 | ||||
| -rwxr-xr-x | tests/functional/s390x/test_topology.py | 415 | ||||
| -rwxr-xr-x | tests/functional/s390x/test_tuxrun.py | 35 |
6 files changed, 899 insertions, 0 deletions
diff --git a/tests/functional/s390x/meson.build b/tests/functional/s390x/meson.build new file mode 100644 index 0000000..70cd36e --- /dev/null +++ b/tests/functional/s390x/meson.build @@ -0,0 +1,17 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +test_s390x_timeouts = { + 'ccw_virtio' : 420, +} + +tests_s390x_system_quick = [ + 'vmstate', +] + +tests_s390x_system_thorough = [ + 'ccw_virtio', + 'pxelinux', + 'replay', + 'topology', + 'tuxrun', +] diff --git a/tests/functional/s390x/test_ccw_virtio.py b/tests/functional/s390x/test_ccw_virtio.py new file mode 100755 index 0000000..453711a --- /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() diff --git a/tests/functional/s390x/test_pxelinux.py b/tests/functional/s390x/test_pxelinux.py new file mode 100755 index 0000000..c00cce6 --- /dev/null +++ b/tests/functional/s390x/test_pxelinux.py @@ -0,0 +1,130 @@ +#!/usr/bin/env python3 +# +# SPDX-License-Identifier: GPL-2.0-or-later +''' +Functional test that checks the pxelinux.cfg network booting of a s390x VM +(TFTP booting without config file is already tested by the pxe qtest, so +we don't repeat that here). +''' + +import os +import shutil + +from qemu_test import QemuSystemTest, Asset, wait_for_console_pattern + + +PXELINUX_CFG_CONTENTS='''# pxelinux.cfg style config file +default Debian +label Nonexisting +kernel kernel.notavailable +initrd initrd.notavailable +label Debian +kernel kernel.debian +initrd initrd.debian +append testoption=teststring +label Fedora +kernel kernel.fedora +''' + +class S390PxeLinux(QemuSystemTest): + ''' + Test various ways of booting via a pxelinux.cfg file, for details see: + https://wiki.syslinux.org/wiki/index.php?title=PXELINUX#Configuration + ''' + + ASSET_DEBIAN_KERNEL = Asset( + ('https://snapshot.debian.org/archive/debian/' + '20201126T092837Z/dists/buster/main/installer-s390x/' + '20190702+deb10u6/images/generic/kernel.debian'), + 'd411d17c39ae7ad38d27534376cbe88b68b403c325739364122c2e6f1537e818') + + ASSET_DEBIAN_INITRD = Asset( + ('https://snapshot.debian.org/archive/debian/' + '20201126T092837Z/dists/buster/main/installer-s390x/' + '20190702+deb10u6/images/generic/initrd.debian'), + '836bbd0fe6a5ca81274c28c2b063ea315ce1868660866e9b60180c575fef9fd5') + + ASSET_FEDORA_KERNEL = Asset( + ('https://archives.fedoraproject.org/pub/archive' + '/fedora-secondary/releases/31/Server/s390x/os' + '/images/kernel.img'), + '480859574f3f44caa6cd35c62d70e1ac0609134e22ce2a954bbed9b110c06e0b') + + def pxelinux_launch(self, pl_name='default', extra_opts=None): + '''Create a pxelinux.cfg file in the right location and launch QEMU''' + self.require_netdev('user') + self.set_machine('s390-ccw-virtio') + + debian_kernel = self.ASSET_DEBIAN_KERNEL.fetch() + debian_initrd = self.ASSET_DEBIAN_INITRD.fetch() + fedora_kernel = self.ASSET_FEDORA_KERNEL.fetch() + + # Prepare a folder for the TFTP "server": + tftpdir = self.scratch_file('tftp') + shutil.rmtree(tftpdir, ignore_errors=True) # Remove stale stuff + os.mkdir(tftpdir) + shutil.copy(debian_kernel, os.path.join(tftpdir, 'kernel.debian')) + shutil.copy(debian_initrd, os.path.join(tftpdir, 'initrd.debian')) + shutil.copy(fedora_kernel, os.path.join(tftpdir, 'kernel.fedora')) + + pxelinuxdir = self.scratch_file('tftp', 'pxelinux.cfg') + os.mkdir(pxelinuxdir) + + cfg_fname = self.scratch_file('tftp', 'pxelinux.cfg', pl_name) + with open(cfg_fname, 'w', encoding='utf-8') as f: + f.write(PXELINUX_CFG_CONTENTS) + + virtio_net_dev = 'virtio-net-ccw,netdev=n1,bootindex=1' + if extra_opts: + virtio_net_dev += ',' + extra_opts + + self.vm.add_args('-m', '384', + '-netdev', f'user,id=n1,tftp={tftpdir}', + '-device', virtio_net_dev) + self.vm.set_console() + self.vm.launch() + + + def test_default(self): + '''Check whether the guest uses the "default" file name''' + self.pxelinux_launch() + # The kernel prints its arguments to the console, so we can use + # this to check whether the kernel parameters are correctly handled: + wait_for_console_pattern(self, 'testoption=teststring') + # Now also check that we've successfully loaded the initrd: + wait_for_console_pattern(self, 'Unpacking initramfs...') + wait_for_console_pattern(self, 'Run /init as init process') + + def test_mac(self): + '''Check whether the guest uses file name based on its MAC address''' + self.pxelinux_launch(pl_name='01-02-ca-fe-ba-be-42', + extra_opts='mac=02:ca:fe:ba:be:42,loadparm=3') + wait_for_console_pattern(self, 'Linux version 5.3.7-301.fc31.s390x') + + def test_uuid(self): + '''Check whether the guest uses file name based on its UUID''' + # Also add a non-bootable disk to check the fallback to network boot: + self.vm.add_args('-blockdev', 'null-co,size=65536,node-name=d1', + '-device', 'virtio-blk,drive=d1,bootindex=0,loadparm=1', + '-uuid', '550e8400-e29b-11d4-a716-446655441234') + self.pxelinux_launch(pl_name='550e8400-e29b-11d4-a716-446655441234') + wait_for_console_pattern(self, 'Debian 4.19.146-1 (2020-09-17)') + + def test_ip(self): + '''Check whether the guest uses file name based on its IP address''' + self.vm.add_args('-M', 'loadparm=3') + self.pxelinux_launch(pl_name='0A00020F') + wait_for_console_pattern(self, 'Linux version 5.3.7-301.fc31.s390x') + + def test_menu(self): + '''Check whether the boot menu works for pxelinux.cfg booting''' + self.vm.add_args('-boot', 'menu=on,splash-time=10') + self.pxelinux_launch(pl_name='0A00') + wait_for_console_pattern(self, '[1] Nonexisting') + wait_for_console_pattern(self, '[2] Debian') + wait_for_console_pattern(self, '[3] Fedora') + wait_for_console_pattern(self, 'Debian 4.19.146-1 (2020-09-17)') + + +if __name__ == '__main__': + QemuSystemTest.main() diff --git a/tests/functional/s390x/test_replay.py b/tests/functional/s390x/test_replay.py new file mode 100755 index 0000000..33b5843 --- /dev/null +++ b/tests/functional/s390x/test_replay.py @@ -0,0 +1,28 @@ +#!/usr/bin/env python3 +# +# Replay test that boots a Linux kernel on an s390x machine +# and checks the console +# +# SPDX-License-Identifier: GPL-2.0-or-later + +from qemu_test import Asset +from replay_kernel import ReplayKernelBase + + +class S390xReplay(ReplayKernelBase): + + ASSET_KERNEL = Asset( + ('https://archives.fedoraproject.org/pub/archive/fedora-secondary/' + 'releases/29/Everything/s390x/os/images/kernel.img'), + 'dace03b8ae0c9f670ebb9b8d6ce5eb24b62987f346de8f1300a439bb00bb99e7') + + def test_s390_ccw_virtio(self): + self.set_machine('s390-ccw-virtio') + kernel_path = self.ASSET_KERNEL.fetch() + kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE + 'console=sclp0' + console_pattern = 'Kernel command line: %s' % kernel_command_line + self.run_rr(kernel_path, kernel_command_line, console_pattern, shift=9) + + +if __name__ == '__main__': + ReplayKernelBase.main() diff --git a/tests/functional/s390x/test_topology.py b/tests/functional/s390x/test_topology.py new file mode 100755 index 0000000..1b5dc65 --- /dev/null +++ b/tests/functional/s390x/test_topology.py @@ -0,0 +1,415 @@ +#!/usr/bin/env python3 +# +# Functional test that boots a Linux kernel and checks the console +# +# Copyright IBM Corp. 2023 +# +# Author: +# Pierre Morel <pmorel@linux.ibm.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. + +from qemu_test import QemuSystemTest, Asset +from qemu_test import exec_command +from qemu_test import exec_command_and_wait_for_pattern +from qemu_test import wait_for_console_pattern + + +class S390CPUTopology(QemuSystemTest): + """ + S390x CPU topology consists of 4 topology layers, from bottom to top, + the cores, sockets, books and drawers and 2 modifiers attributes, + the entitlement and the dedication. + See: docs/system/s390x/cpu-topology.rst. + + S390x CPU topology is setup in different ways: + - implicitly from the '-smp' argument by completing each topology + level one after the other beginning with drawer 0, book 0 and + socket 0. + - explicitly from the '-device' argument on the QEMU command line + - explicitly by hotplug of a new CPU using QMP or HMP + - it is modified by using QMP 'set-cpu-topology' + + The S390x modifier attribute entitlement depends on the machine + polarization, which can be horizontal or vertical. + The polarization is changed on a request from the guest. + """ + timeout = 90 + event_timeout = 10 + + KERNEL_COMMON_COMMAND_LINE = ('printk.time=0 ' + 'root=/dev/ram ' + 'selinux=0 ' + 'rdinit=/bin/sh') + ASSET_F35_KERNEL = Asset( + ('https://archives.fedoraproject.org/pub/archive' + '/fedora-secondary/releases/35/Server/s390x/os' + '/images/kernel.img'), + '1f2dddfd11bb1393dd2eb2e784036fbf6fc11057a6d7d27f9eb12d3edc67ef73') + + ASSET_F35_INITRD = Asset( + ('https://archives.fedoraproject.org/pub/archive' + '/fedora-secondary/releases/35/Server/s390x/os' + '/images/initrd.img'), + '1100145fbca00240c8c372ae4b89b48c99844bc189b3dfbc3f481dc60055ca46') + + def wait_until_booted(self): + wait_for_console_pattern(self, 'no job control', + failure_message='Kernel panic - not syncing', + vm=None) + + def check_topology(self, c, s, b, d, e, t): + res = self.vm.qmp('query-cpus-fast') + cpus = res['return'] + for cpu in cpus: + core = cpu['props']['core-id'] + socket = cpu['props']['socket-id'] + book = cpu['props']['book-id'] + drawer = cpu['props']['drawer-id'] + entitlement = cpu.get('entitlement') + dedicated = cpu.get('dedicated') + if core == c: + self.assertEqual(drawer, d) + self.assertEqual(book, b) + self.assertEqual(socket, s) + self.assertEqual(entitlement, e) + self.assertEqual(dedicated, t) + + def kernel_init(self): + """ + We need a VM that supports CPU topology, + currently this only the case when using KVM, not TCG. + We need a kernel supporting the CPU topology. + We need a minimal root filesystem with a shell. + """ + self.require_accelerator("kvm") + kernel_path = self.ASSET_F35_KERNEL.fetch() + initrd_path = self.uncompress(self.ASSET_F35_INITRD, format="xz") + + self.vm.set_console() + kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE + self.vm.add_args('-nographic', + '-enable-kvm', + '-cpu', 'max,ctop=on', + '-m', '512', + '-kernel', kernel_path, + '-initrd', initrd_path, + '-append', kernel_command_line) + + def system_init(self): + self.log.info("System init") + exec_command_and_wait_for_pattern(self, + """ mount proc -t proc /proc; + mount sys -t sysfs /sys; + cat /sys/devices/system/cpu/dispatching """, + '0') + + def test_single(self): + """ + This test checks the simplest topology with a single CPU. + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.launch() + self.wait_until_booted() + self.check_topology(0, 0, 0, 0, 'medium', False) + + def test_default(self): + """ + This test checks the implicit topology. + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.add_args('-smp', + '13,drawers=2,books=2,sockets=3,cores=2,maxcpus=24') + self.vm.launch() + self.wait_until_booted() + self.check_topology(0, 0, 0, 0, 'medium', False) + self.check_topology(1, 0, 0, 0, 'medium', False) + self.check_topology(2, 1, 0, 0, 'medium', False) + self.check_topology(3, 1, 0, 0, 'medium', False) + self.check_topology(4, 2, 0, 0, 'medium', False) + self.check_topology(5, 2, 0, 0, 'medium', False) + self.check_topology(6, 0, 1, 0, 'medium', False) + self.check_topology(7, 0, 1, 0, 'medium', False) + self.check_topology(8, 1, 1, 0, 'medium', False) + self.check_topology(9, 1, 1, 0, 'medium', False) + self.check_topology(10, 2, 1, 0, 'medium', False) + self.check_topology(11, 2, 1, 0, 'medium', False) + self.check_topology(12, 0, 0, 1, 'medium', False) + + def test_move(self): + """ + This test checks the topology modification by moving a CPU + to another socket: CPU 0 is moved from socket 0 to socket 2. + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.add_args('-smp', + '1,drawers=2,books=2,sockets=3,cores=2,maxcpus=24') + self.vm.launch() + self.wait_until_booted() + + self.check_topology(0, 0, 0, 0, 'medium', False) + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'socket-id': 2, 'entitlement': 'low'}) + self.assertEqual(res['return'], {}) + self.check_topology(0, 2, 0, 0, 'low', False) + + def test_dash_device(self): + """ + This test verifies that a CPU defined with the '-device' + command line option finds its right place inside the topology. + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.add_args('-smp', + '1,drawers=2,books=2,sockets=3,cores=2,maxcpus=24') + self.vm.add_args('-device', 'max-s390x-cpu,core-id=10') + self.vm.add_args('-device', + 'max-s390x-cpu,' + 'core-id=1,socket-id=0,book-id=1,drawer-id=1,entitlement=low') + self.vm.add_args('-device', + 'max-s390x-cpu,' + 'core-id=2,socket-id=0,book-id=1,drawer-id=1,entitlement=medium') + self.vm.add_args('-device', + 'max-s390x-cpu,' + 'core-id=3,socket-id=1,book-id=1,drawer-id=1,entitlement=high') + self.vm.add_args('-device', + 'max-s390x-cpu,' + 'core-id=4,socket-id=1,book-id=1,drawer-id=1') + self.vm.add_args('-device', + 'max-s390x-cpu,' + 'core-id=5,socket-id=2,book-id=1,drawer-id=1,dedicated=true') + + self.vm.launch() + self.wait_until_booted() + + self.check_topology(10, 2, 1, 0, 'medium', False) + self.check_topology(1, 0, 1, 1, 'low', False) + self.check_topology(2, 0, 1, 1, 'medium', False) + self.check_topology(3, 1, 1, 1, 'high', False) + self.check_topology(4, 1, 1, 1, 'medium', False) + self.check_topology(5, 2, 1, 1, 'high', True) + + + def guest_set_dispatching(self, dispatching): + exec_command(self, + f'echo {dispatching} > /sys/devices/system/cpu/dispatching') + self.vm.event_wait('CPU_POLARIZATION_CHANGE', self.event_timeout) + exec_command_and_wait_for_pattern(self, + 'cat /sys/devices/system/cpu/dispatching', dispatching) + + + def test_polarization(self): + """ + This test verifies that QEMU modifies the entitlement change after + several guest polarization change requests. + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.launch() + self.wait_until_booted() + + self.system_init() + res = self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'horizontal') + self.check_topology(0, 0, 0, 0, 'medium', False) + + self.guest_set_dispatching('1') + res = self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'vertical') + self.check_topology(0, 0, 0, 0, 'medium', False) + + self.guest_set_dispatching('0') + res = self.vm.qmp('query-s390x-cpu-polarization') + self.assertEqual(res['return']['polarization'], 'horizontal') + self.check_topology(0, 0, 0, 0, 'medium', False) + + + def check_polarization(self, polarization): + #We need to wait for the change to have been propagated to the kernel + exec_command_and_wait_for_pattern(self, + "\n".join([ + "timeout 1 sh -c 'while true", + 'do', + ' syspath="/sys/devices/system/cpu/cpu0/polarization"', + ' polarization="$(cat "$syspath")" || exit', + f' if [ "$polarization" = "{polarization}" ]; then', + ' exit 0', + ' fi', + ' sleep 0.01', + #searched for strings mustn't show up in command, '' to obfuscate + "done' && echo succ''ess || echo fail''ure", + ]), + "success", "failure") + + + def test_entitlement(self): + """ + This test verifies that QEMU modifies the entitlement + after a guest request and that the guest sees the change. + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.launch() + self.wait_until_booted() + + self.system_init() + + self.check_polarization('horizontal') + self.check_topology(0, 0, 0, 0, 'medium', False) + + self.guest_set_dispatching('1') + self.check_polarization('vertical:medium') + self.check_topology(0, 0, 0, 0, 'medium', False) + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'low'}) + self.assertEqual(res['return'], {}) + self.check_polarization('vertical:low') + self.check_topology(0, 0, 0, 0, 'low', False) + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'medium'}) + self.assertEqual(res['return'], {}) + self.check_polarization('vertical:medium') + self.check_topology(0, 0, 0, 0, 'medium', False) + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'high'}) + self.assertEqual(res['return'], {}) + self.check_polarization('vertical:high') + self.check_topology(0, 0, 0, 0, 'high', False) + + self.guest_set_dispatching('0') + self.check_polarization("horizontal") + self.check_topology(0, 0, 0, 0, 'high', False) + + + def test_dedicated(self): + """ + This test verifies that QEMU adjusts the entitlement correctly when a + CPU is made dedicated. + QEMU retains the entitlement value when horizontal polarization is in effect. + For the guest, the field shows the effective value of the entitlement. + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.launch() + self.wait_until_booted() + + self.system_init() + + self.check_polarization("horizontal") + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'dedicated': True}) + self.assertEqual(res['return'], {}) + self.check_topology(0, 0, 0, 0, 'high', True) + self.check_polarization("horizontal") + + self.guest_set_dispatching('1') + self.check_topology(0, 0, 0, 0, 'high', True) + self.check_polarization("vertical:high") + + self.guest_set_dispatching('0') + self.check_topology(0, 0, 0, 0, 'high', True) + self.check_polarization("horizontal") + + + def test_socket_full(self): + """ + This test verifies that QEMU does not accept to overload a socket. + The socket-id 0 on book-id 0 already contains CPUs 0 and 1 and can + not accept any new CPU while socket-id 0 on book-id 1 is free. + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.add_args('-smp', + '3,drawers=2,books=2,sockets=3,cores=2,maxcpus=24') + self.vm.launch() + self.wait_until_booted() + + self.system_init() + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 2, 'socket-id': 0, 'book-id': 0}) + self.assertEqual(res['error']['class'], 'GenericError') + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 2, 'socket-id': 0, 'book-id': 1}) + self.assertEqual(res['return'], {}) + + def test_dedicated_error(self): + """ + This test verifies that QEMU refuses to lower the entitlement + of a dedicated CPU + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.launch() + self.wait_until_booted() + + self.system_init() + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'dedicated': True}) + self.assertEqual(res['return'], {}) + + self.check_topology(0, 0, 0, 0, 'high', True) + + self.guest_set_dispatching('1') + + self.check_topology(0, 0, 0, 0, 'high', True) + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'low', 'dedicated': True}) + self.assertEqual(res['error']['class'], 'GenericError') + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'low'}) + self.assertEqual(res['error']['class'], 'GenericError') + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'medium', 'dedicated': True}) + self.assertEqual(res['error']['class'], 'GenericError') + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'medium'}) + self.assertEqual(res['error']['class'], 'GenericError') + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'low', 'dedicated': False}) + self.assertEqual(res['return'], {}) + + res = self.vm.qmp('set-cpu-topology', + {'core-id': 0, 'entitlement': 'medium', 'dedicated': False}) + self.assertEqual(res['return'], {}) + + def test_move_error(self): + """ + This test verifies that QEMU refuses to move a CPU to an + nonexistent location + """ + self.set_machine('s390-ccw-virtio') + self.kernel_init() + self.vm.launch() + self.wait_until_booted() + + self.system_init() + + res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'drawer-id': 1}) + self.assertEqual(res['error']['class'], 'GenericError') + + res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'book-id': 1}) + self.assertEqual(res['error']['class'], 'GenericError') + + res = self.vm.qmp('set-cpu-topology', {'core-id': 0, 'socket-id': 1}) + self.assertEqual(res['error']['class'], 'GenericError') + + self.check_topology(0, 0, 0, 0, 'medium', False) + +if __name__ == '__main__': + QemuSystemTest.main() diff --git a/tests/functional/s390x/test_tuxrun.py b/tests/functional/s390x/test_tuxrun.py new file mode 100755 index 0000000..8df3c68 --- /dev/null +++ b/tests/functional/s390x/test_tuxrun.py @@ -0,0 +1,35 @@ +#!/usr/bin/env python3 +# +# Functional test that boots known good tuxboot images the same way +# that tuxrun (www.tuxrun.org) does. This tool is used by things like +# the LKFT project to run regression tests on kernels. +# +# Copyright (c) 2023 Linaro Ltd. +# +# Author: +# Alex Bennée <alex.bennee@linaro.org> +# +# SPDX-License-Identifier: GPL-2.0-or-later + +from qemu_test import Asset +from qemu_test.tuxruntest import TuxRunBaselineTest + +class TuxRunS390xTest(TuxRunBaselineTest): + + ASSET_S390X_KERNEL = Asset( + 'https://storage.tuxboot.com/buildroot/20241119/s390/bzImage', + 'ee67e91db52a2aed104a7c72b2a08987c678f8179c029626789c35d6dd0fedf1') + ASSET_S390X_ROOTFS = Asset( + 'https://storage.tuxboot.com/buildroot/20241119/s390/rootfs.ext4.zst', + 'bff7971fc2fef56372d98afe4557b82fd0a785a241e44c29b058e577ad1bbb44') + + def test_s390(self): + self.set_machine('s390-ccw-virtio') + self.wait_for_shutdown=False + self.common_tuxrun(kernel_asset=self.ASSET_S390X_KERNEL, + rootfs_asset=self.ASSET_S390X_ROOTFS, + drive="virtio-blk-ccw", + haltmsg="Requesting system halt") + +if __name__ == '__main__': + TuxRunBaselineTest.main() |