tests/acceptance/machine_s390_ccw_virtio.py

   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
  13 from avocado_qemu import Test
  14 from avocado_qemu import exec_command_and_wait_for_pattern
  15 from avocado_qemu import wait_for_console_pattern
  16
  17 class 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                          '-device', 'zpci,uid=0xa,fid=12,target=serial',
  61                          '-device', 'virtio-serial-pci,id=serial')
  62         self.vm.launch()
  63
  64         shell_ready = "sh: can't access tty; job control turned off"
  65         self.wait_for_console_pattern(shell_ready)
  66         # first debug shell is too early, we need to wait for device detection
  67         exec_command_and_wait_for_pattern(self, 'exit', shell_ready)
  68
  69         ccw_bus_ids="0.1.1111  0.2.0000  0.3.1234"
  70         pci_bus_ids="0005:00:00.0  000a:00:00.0"
  71         exec_command_and_wait_for_pattern(self, 'ls /sys/bus/ccw/devices/',
  72                                           ccw_bus_ids)
  73         exec_command_and_wait_for_pattern(self, 'ls /sys/bus/pci/devices/',
  74                                           pci_bus_ids)
  75         # check that the device at 0.2.0000 is in legacy mode, while the
  76         # device at 0.3.1234 has the virtio-1 feature bit set
  77         virtio_rng_features="00000000000000000000000000001100" + \
  78                             "10000000000000000000000000000000"
  79         virtio_rng_features_legacy="00000000000000000000000000001100" + \
  80                                    "00000000000000000000000000000000"
  81         exec_command_and_wait_for_pattern(self,
  82                         'cat /sys/bus/ccw/devices/0.2.0000/virtio?/features',
  83                         virtio_rng_features_legacy)
  84         exec_command_and_wait_for_pattern(self,
  85                         'cat /sys/bus/ccw/devices/0.3.1234/virtio?/features',
  86                         virtio_rng_features)
  87         # verify that we indeed have virtio-net devices (without having the
  88         # virtio-net driver handy)
  89         exec_command_and_wait_for_pattern(self,
  90                                     'cat /sys/bus/ccw/devices/0.1.1111/cutype',
  91                                     '3832/01')
  92         exec_command_and_wait_for_pattern(self,
  93                     'cat /sys/bus/pci/devices/0005\:00\:00.0/subsystem_vendor',
  94                     '0x1af4')
  95         exec_command_and_wait_for_pattern(self,
  96                     'cat /sys/bus/pci/devices/0005\:00\:00.0/subsystem_device',
  97                     '0x0001')
  98         # check fid propagation
  99         exec_command_and_wait_for_pattern(self,
 100                         'cat /sys/bus/pci/devices/000a\:00\:00.0/function_id',
 101                         '0x0000000c')