qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
Log | Files | Refs | Submodules | LICENSE

linux_initrd.py (3386B)

      1 # Linux initrd integration test.
      2 #
      3 # Copyright (c) 2018 Red Hat, Inc.
      4 #
      5 # Author:
      6 #  Wainer dos Santos Moschetta <wainersm@redhat.com>
      7 #
      8 # This work is licensed under the terms of the GNU GPL, version 2 or
      9 # later.  See the COPYING file in the top-level directory.
     10 
     11 import os
     12 import logging
     13 import tempfile
     14 
     15 from avocado_qemu import QemuSystemTest
     16 from avocado import skipIf
     17 
     18 
     19 class LinuxInitrd(QemuSystemTest):
     20     """
     21     Checks QEMU evaluates correctly the initrd file passed as -initrd option.
     22 
     23     :avocado: tags=arch:x86_64
     24     :avocado: tags=machine:pc
     25     """
     26 
     27     timeout = 300
     28 
     29     def test_with_2gib_file_should_exit_error_msg_with_linux_v3_6(self):
     30         """
     31         Pretends to boot QEMU with an initrd file with size of 2GiB
     32         and expect it exits with error message.
     33         Fedora-18 shipped with linux-3.6 which have not supported xloadflags
     34         cannot support more than 2GiB initrd.
     35         """
     36         kernel_url = ('https://archives.fedoraproject.org/pub/archive/fedora/li'
     37                       'nux/releases/18/Fedora/x86_64/os/images/pxeboot/vmlinuz')
     38         kernel_hash = '41464f68efe42b9991250bed86c7081d2ccdbb21'
     39         kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
     40         max_size = 2 * (1024 ** 3) - 1
     41 
     42         with tempfile.NamedTemporaryFile() as initrd:
     43             initrd.seek(max_size)
     44             initrd.write(b'\0')
     45             initrd.flush()
     46             self.vm.add_args('-kernel', kernel_path, '-initrd', initrd.name,
     47                              '-m', '4096')
     48             self.vm.set_qmp_monitor(enabled=False)
     49             self.vm.launch()
     50             self.vm.wait()
     51             self.assertEqual(self.vm.exitcode(), 1)
     52             expected_msg = r'.*initrd is too large.*max: \d+, need %s.*' % (
     53                 max_size + 1)
     54             self.assertRegex(self.vm.get_log(), expected_msg)
     55 
     56     @skipIf(os.getenv('GITLAB_CI'), 'Running on GitLab')
     57     def test_with_2gib_file_should_work_with_linux_v4_16(self):
     58         """
     59         QEMU has supported up to 4 GiB initrd for recent kernel
     60         Expect guest can reach 'Unpacking initramfs...'
     61         """
     62         kernel_url = ('https://archives.fedoraproject.org/pub/archive/fedora'
     63                       '/linux/releases/28/Everything/x86_64/os/images/pxeboot/'
     64                       'vmlinuz')
     65         kernel_hash = '238e083e114c48200f80d889f7e32eeb2793e02a'
     66         kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
     67         max_size = 2 * (1024 ** 3) + 1
     68 
     69         with tempfile.NamedTemporaryFile() as initrd:
     70             initrd.seek(max_size)
     71             initrd.write(b'\0')
     72             initrd.flush()
     73 
     74             self.vm.set_console()
     75             kernel_command_line = 'console=ttyS0'
     76             self.vm.add_args('-kernel', kernel_path,
     77                              '-append', kernel_command_line,
     78                              '-initrd', initrd.name,
     79                              '-m', '5120')
     80             self.vm.launch()
     81             console = self.vm.console_socket.makefile()
     82             console_logger = logging.getLogger('console')
     83             while True:
     84                 msg = console.readline()
     85                 console_logger.debug(msg.strip())
     86                 if 'Unpacking initramfs...' in msg:
     87                     break
     88                 if 'Kernel panic - not syncing' in msg:
     89                     self.fail("Kernel panic reached")