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 12 13from avocado_qemu import Test 14from avocado_qemu import exec_command_and_wait_for_pattern 15from avocado_qemu import wait_for_console_pattern 16 17class S390CCWVirtioMachine(Test): 18 KERNEL_COMMON_COMMAND_LINE = 'printk.time=0 ' 19 20 def wait_for_console_pattern(self, success_message, vm=None): 21 wait_for_console_pattern(self, success_message, 22 failure_message='Kernel panic - not syncing', 23 vm=vm) 24 25 timeout = 120 26 27 def test_s390x_devices(self): 28 29 """ 30 :avocado: tags=arch:s390x 31 :avocado: tags=machine:s390-ccw-virtio 32 """ 33 34 kernel_url = ('https://snapshot.debian.org/archive/debian/' 35 '20201126T092837Z/dists/buster/main/installer-s390x/' 36 '20190702+deb10u6/images/generic/kernel.debian') 37 kernel_hash = '5821fbee57d6220a067a8b967d24595621aa1eb6' 38 kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash) 39 40 initrd_url = ('https://snapshot.debian.org/archive/debian/' 41 '20201126T092837Z/dists/buster/main/installer-s390x/' 42 '20190702+deb10u6/images/generic/initrd.debian') 43 initrd_hash = '81ba09c97bef46e8f4660ac25b4ac0a5be3a94d6' 44 initrd_path = self.fetch_asset(initrd_url, asset_hash=initrd_hash) 45 46 self.vm.set_console() 47 kernel_command_line = (self.KERNEL_COMMON_COMMAND_LINE + 48 'console=sclp0 root=/dev/ram0 BOOT_DEBUG=3') 49 self.vm.add_args('-nographic', 50 '-kernel', kernel_path, 51 '-initrd', initrd_path, 52 '-append', kernel_command_line, 53 '-device', 'virtio-net-ccw,devno=fe.1.1111', 54 '-device', 55 'virtio-rng-ccw,devno=fe.2.0000,max_revision=0', 56 '-device', 57 'virtio-rng-ccw,devno=fe.3.1234,max_revision=2', 58 '-device', 'zpci,uid=5,target=zzz', 59 '-device', 'virtio-net-pci,id=zzz') 60 self.vm.launch() 61 62 shell_ready = "sh: can't access tty; job control turned off" 63 self.wait_for_console_pattern(shell_ready) 64 # first debug shell is too early, we need to wait for device detection 65 exec_command_and_wait_for_pattern(self, 'exit', shell_ready) 66 67 ccw_bus_ids="0.1.1111 0.2.0000 0.3.1234" 68 pci_bus_id="0005:00:00.0" 69 exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/', 70 ccw_bus_ids) 71 exec_command_and_wait_for_pattern(self, 'ls /sys/bus/pci/devices/', 72 pci_bus_id) 73 # check that the device at 0.2.0000 is in legacy mode, while the 74 # device at 0.3.1234 has the virtio-1 feature bit set 75 virtio_rng_features="00000000000000000000000000001100" + \ 76 "10000000000000000000000000000000" 77 virtio_rng_features_legacy="00000000000000000000000000001100" + \ 78 "00000000000000000000000000000000" 79 exec_command_and_wait_for_pattern(self, 80 'cat /sys/bus/ccw/devices/0.2.0000/virtio?/features', 81 virtio_rng_features_legacy) 82 exec_command_and_wait_for_pattern(self, 83 'cat /sys/bus/ccw/devices/0.3.1234/virtio?/features', 84 virtio_rng_features) 85