tests/boot_linux_console: add a test for mips + malta

Similar to the x86_64 + pc test, it boots a Linux kernel on a Malta
board and verify the serial is working.  Also, it relies on the serial
device set by the machine itself.

If mips is a target being built, "make check-acceptance" will
automatically include this test by the use of the "arch:mips" tags.

Alternatively, this test can be run using:

    $ avocado run -t arch:mips tests/acceptance
    $ avocado run -t machine:malta tests/acceptance
    $ avocado run -t endian:big tests/acceptance

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190312171824.5134-14-crosa@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>

.travis.yml

@@ -223,7 +223,7 @@ matrix:
 
     # Acceptance (Functional) tests
     - env:
-        - CONFIG="--python=/usr/bin/python3 --target-list=x86_64-softmmu"
+        - CONFIG="--python=/usr/bin/python3 --target-list=x86_64-softmmu,mips-softmmu"
         - TEST_CMD="make check-acceptance"
       addons:
         apt:

tests/acceptance/boot_linux_console.py

@@ -8,9 +8,12 @@
 # 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 logging
 
 from avocado_qemu import Test
+from avocado.utils import process
+from avocado.utils import archive
 
 
 class BootLinuxConsole(Test):
@@ -42,6 +45,21 @@ def wait_for_console_pattern(self, success_message,
                 fail = 'Failure message found in console: %s' % failure_message
                 self.fail(fail)
 
+    def extract_from_deb(self, deb, path):
+        """
+        Extracts a file from a deb package into the test workdir
+
+        :param deb: path to the deb archive
+        :param file: path within the deb archive of the file to be extracted
+        :returns: path of the extracted file
+        """
+        cwd = os.getcwd()
+        os.chdir(self.workdir)
+        process.run("ar x %s data.tar.gz" % deb)
+        archive.extract("data.tar.gz", self.workdir)
+        os.chdir(cwd)
+        return self.workdir + path
+
     def test_x86_64_pc(self):
         """
         :avocado: tags=arch:x86_64
@@ -60,3 +78,26 @@ def test_x86_64_pc(self):
         self.vm.launch()
         console_pattern = 'Kernel command line: %s' % kernel_command_line
         self.wait_for_console_pattern(console_pattern)
+
+    def test_mips_malta(self):
+        """
+        :avocado: tags=arch:mips
+        :avocado: tags=machine:malta
+        :avocado: tags=endian:big
+        """
+        deb_url = ('http://snapshot.debian.org/archive/debian/'
+                   '20130217T032700Z/pool/main/l/linux-2.6/'
+                   'linux-image-2.6.32-5-4kc-malta_2.6.32-48_mips.deb')
+        deb_hash = 'a8cfc28ad8f45f54811fc6cf74fc43ffcfe0ba04'
+        deb_path = self.fetch_asset(deb_url, asset_hash=deb_hash)
+        kernel_path = self.extract_from_deb(deb_path,
+                                            '/boot/vmlinux-2.6.32-5-4kc-malta')
+
+        self.vm.set_machine('malta')
+        self.vm.set_console()
+        kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE + 'console=ttyS0'
+        self.vm.add_args('-kernel', kernel_path,
+                         '-append', kernel_command_line)
+        self.vm.launch()
+        console_pattern = 'Kernel command line: %s' % kernel_command_line
+        self.wait_for_console_pattern(console_pattern)