Commit 87c9c163 authored by Brendan Higgins's avatar Brendan Higgins Committed by Shuah Khan

kunit: tool: add support for QEMU

Add basic support to run QEMU via kunit_tool. Add support for i386,
x86_64, arm, arm64, and a bunch more.
Signed-off-by: default avatarBrendan Higgins <brendanhiggins@google.com>
Tested-by: default avatarDavid Gow <davidgow@google.com>
Reviewed-by: default avatarDavid Gow <davidgow@google.com>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 12ca7a89
......@@ -70,10 +70,10 @@ def build_tests(linux: kunit_kernel.LinuxSourceTree,
kunit_parser.print_with_timestamp('Building KUnit Kernel ...')
build_start = time.time()
success = linux.build_um_kernel(request.alltests,
request.jobs,
request.build_dir,
request.make_options)
success = linux.build_kernel(request.alltests,
request.jobs,
request.build_dir,
request.make_options)
build_end = time.time()
if not success:
return KunitResult(KunitStatus.BUILD_FAILURE,
......@@ -189,6 +189,31 @@ def add_common_opts(parser) -> None:
'will get automatically appended.',
metavar='kunitconfig')
parser.add_argument('--arch',
help=('Specifies the architecture to run tests under. '
'The architecture specified here must match the '
'string passed to the ARCH make param, '
'e.g. i386, x86_64, arm, um, etc. Non-UML '
'architectures run on QEMU.'),
type=str, default='um', metavar='arch')
parser.add_argument('--cross_compile',
help=('Sets make\'s CROSS_COMPILE variable; it should '
'be set to a toolchain path prefix (the prefix '
'of gcc and other tools in your toolchain, for '
'example `sparc64-linux-gnu-` if you have the '
'sparc toolchain installed on your system, or '
'`$HOME/toolchains/microblaze/gcc-9.2.0-nolibc/microblaze-linux/bin/microblaze-linux-` '
'if you have downloaded the microblaze toolchain '
'from the 0-day website to a directory in your '
'home directory called `toolchains`).'),
metavar='cross_compile')
parser.add_argument('--qemu_config',
help=('Takes a path to a path to a file containing '
'a QemuArchParams object.'),
type=str, metavar='qemu_config')
def add_build_opts(parser) -> None:
parser.add_argument('--jobs',
help='As in the make command, "Specifies the number of '
......@@ -270,7 +295,11 @@ def main(argv, linux=None):
os.mkdir(cli_args.build_dir)
if not linux:
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir,
kunitconfig_path=cli_args.kunitconfig,
arch=cli_args.arch,
cross_compile=cli_args.cross_compile,
qemu_config_path=cli_args.qemu_config)
request = KunitRequest(cli_args.raw_output,
cli_args.timeout,
......@@ -289,7 +318,11 @@ def main(argv, linux=None):
os.mkdir(cli_args.build_dir)
if not linux:
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir,
kunitconfig_path=cli_args.kunitconfig,
arch=cli_args.arch,
cross_compile=cli_args.cross_compile,
qemu_config_path=cli_args.qemu_config)
request = KunitConfigRequest(cli_args.build_dir,
cli_args.make_options)
......@@ -301,7 +334,11 @@ def main(argv, linux=None):
sys.exit(1)
elif cli_args.subcommand == 'build':
if not linux:
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir, kunitconfig_path=cli_args.kunitconfig)
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir,
kunitconfig_path=cli_args.kunitconfig,
arch=cli_args.arch,
cross_compile=cli_args.cross_compile,
qemu_config_path=cli_args.qemu_config)
request = KunitBuildRequest(cli_args.jobs,
cli_args.build_dir,
......@@ -315,7 +352,11 @@ def main(argv, linux=None):
sys.exit(1)
elif cli_args.subcommand == 'exec':
if not linux:
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir)
linux = kunit_kernel.LinuxSourceTree(cli_args.build_dir,
kunitconfig_path=cli_args.kunitconfig,
arch=cli_args.arch,
cross_compile=cli_args.cross_compile,
qemu_config_path=cli_args.qemu_config)
exec_request = KunitExecRequest(cli_args.timeout,
cli_args.build_dir,
......
......@@ -52,8 +52,13 @@ class Kconfig(object):
return False
return True
def merge_in_entries(self, other: 'Kconfig') -> None:
if other.is_subset_of(self):
return
self._entries = list(self.entries().union(other.entries()))
def write_to_file(self, path: str) -> None:
with open(path, 'w') as f:
with open(path, 'a+') as f:
for entry in self.entries():
f.write(str(entry) + '\n')
......
This diff is collapsed.
......@@ -303,7 +303,7 @@ class KUnitMainTest(unittest.TestCase):
self.linux_source_mock = mock.Mock()
self.linux_source_mock.build_reconfig = mock.Mock(return_value=True)
self.linux_source_mock.build_um_kernel = mock.Mock(return_value=True)
self.linux_source_mock.build_kernel = mock.Mock(return_value=True)
self.linux_source_mock.run_kernel = mock.Mock(return_value=all_passed_log)
def test_config_passes_args_pass(self):
......@@ -314,7 +314,7 @@ class KUnitMainTest(unittest.TestCase):
def test_build_passes_args_pass(self):
kunit.main(['build'], self.linux_source_mock)
self.assertEqual(self.linux_source_mock.build_reconfig.call_count, 0)
self.linux_source_mock.build_um_kernel.assert_called_once_with(False, 8, '.kunit', None)
self.linux_source_mock.build_kernel.assert_called_once_with(False, 8, '.kunit', None)
self.assertEqual(self.linux_source_mock.run_kernel.call_count, 0)
def test_exec_passes_args_pass(self):
......@@ -396,7 +396,7 @@ class KUnitMainTest(unittest.TestCase):
def test_build_builddir(self):
build_dir = '.kunit'
kunit.main(['build', '--build_dir', build_dir], self.linux_source_mock)
self.linux_source_mock.build_um_kernel.assert_called_once_with(False, 8, build_dir, None)
self.linux_source_mock.build_kernel.assert_called_once_with(False, 8, build_dir, None)
def test_exec_builddir(self):
build_dir = '.kunit'
......@@ -410,14 +410,22 @@ class KUnitMainTest(unittest.TestCase):
mock_linux_init.return_value = self.linux_source_mock
kunit.main(['run', '--kunitconfig=mykunitconfig'])
# Just verify that we parsed and initialized it correctly here.
mock_linux_init.assert_called_once_with('.kunit', kunitconfig_path='mykunitconfig')
mock_linux_init.assert_called_once_with('.kunit',
kunitconfig_path='mykunitconfig',
arch='um',
cross_compile=None,
qemu_config_path=None)
@mock.patch.object(kunit_kernel, 'LinuxSourceTree')
def test_config_kunitconfig(self, mock_linux_init):
mock_linux_init.return_value = self.linux_source_mock
kunit.main(['config', '--kunitconfig=mykunitconfig'])
# Just verify that we parsed and initialized it correctly here.
mock_linux_init.assert_called_once_with('.kunit', kunitconfig_path='mykunitconfig')
mock_linux_init.assert_called_once_with('.kunit',
kunitconfig_path='mykunitconfig',
arch='um',
cross_compile=None,
qemu_config_path=None)
if __name__ == '__main__':
unittest.main()
# SPDX-License-Identifier: GPL-2.0
#
# Collection of configs for building non-UML kernels and running them on QEMU.
#
# Copyright (C) 2021, Google LLC.
# Author: Brendan Higgins <brendanhiggins@google.com>
from collections import namedtuple
QemuArchParams = namedtuple('QemuArchParams', ['linux_arch',
'kconfig',
'qemu_arch',
'kernel_path',
'kernel_command_line',
'extra_qemu_params'])
from ..qemu_config import QemuArchParams
QEMU_ARCH = QemuArchParams(linux_arch='alpha',
kconfig='''
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y''',
qemu_arch='alpha',
kernel_path='arch/alpha/boot/vmlinux',
kernel_command_line='console=ttyS0',
extra_qemu_params=[''])
from ..qemu_config import QemuArchParams
QEMU_ARCH = QemuArchParams(linux_arch='arm',
kconfig='''
CONFIG_ARCH_VIRT=y
CONFIG_SERIAL_AMBA_PL010=y
CONFIG_SERIAL_AMBA_PL010_CONSOLE=y
CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y''',
qemu_arch='arm',
kernel_path='arch/arm/boot/zImage',
kernel_command_line='console=ttyAMA0',
extra_qemu_params=['-machine virt'])
from ..qemu_config import QemuArchParams
QEMU_ARCH = QemuArchParams(linux_arch='arm64',
kconfig='''
CONFIG_SERIAL_AMBA_PL010=y
CONFIG_SERIAL_AMBA_PL010_CONSOLE=y
CONFIG_SERIAL_AMBA_PL011=y
CONFIG_SERIAL_AMBA_PL011_CONSOLE=y''',
qemu_arch='aarch64',
kernel_path='arch/arm64/boot/Image.gz',
kernel_command_line='console=ttyAMA0',
extra_qemu_params=['-machine virt', '-cpu cortex-a57'])
from ..qemu_config import QemuArchParams
QEMU_ARCH = QemuArchParams(linux_arch='i386',
kconfig='''
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y''',
qemu_arch='x86_64',
kernel_path='arch/x86/boot/bzImage',
kernel_command_line='console=ttyS0',
extra_qemu_params=[''])
from ..qemu_config import QemuArchParams
QEMU_ARCH = QemuArchParams(linux_arch='powerpc',
kconfig='''
CONFIG_PPC64=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_HVC_CONSOLE=y''',
qemu_arch='ppc64',
kernel_path='vmlinux',
kernel_command_line='console=ttyS0',
extra_qemu_params=['-M pseries', '-cpu power8'])
from ..qemu_config import QemuArchParams
import os
import os.path
import sys
GITHUB_OPENSBI_URL = 'https://github.com/qemu/qemu/raw/master/pc-bios/opensbi-riscv64-generic-fw_dynamic.bin'
OPENSBI_FILE = os.path.basename(GITHUB_OPENSBI_URL)
if not os.path.isfile(OPENSBI_FILE):
print('\n\nOpenSBI file is not in the current working directory.\n'
'Would you like me to download it for you from:\n' + GITHUB_OPENSBI_URL + ' ?\n')
response = input('yes/[no]: ')
if response.strip() == 'yes':
os.system('wget ' + GITHUB_OPENSBI_URL)
else:
sys.exit()
QEMU_ARCH = QemuArchParams(linux_arch='riscv',
kconfig='''
CONFIG_SOC_VIRT=y
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SERIAL_EARLYCON_RISCV_SBI=y''',
qemu_arch='riscv64',
kernel_path='arch/riscv/boot/Image',
kernel_command_line='console=ttyS0',
extra_qemu_params=[
'-machine virt',
'-cpu rv64',
'-bios opensbi-riscv64-generic-fw_dynamic.bin'])
from ..qemu_config import QemuArchParams
QEMU_ARCH = QemuArchParams(linux_arch='s390',
kconfig='''
CONFIG_EXPERT=y
CONFIG_TUNE_ZEC12=y
CONFIG_NUMA=y
CONFIG_MODULES=y''',
qemu_arch='s390x',
kernel_path='arch/s390/boot/bzImage',
kernel_command_line='console=ttyS0',
extra_qemu_params=[
'-machine s390-ccw-virtio',
'-cpu qemu',])
from ..qemu_config import QemuArchParams
QEMU_ARCH = QemuArchParams(linux_arch='sparc',
kconfig='''
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y''',
qemu_arch='sparc',
kernel_path='arch/sparc/boot/zImage',
kernel_command_line='console=ttyS0 mem=256M',
extra_qemu_params=['-m 256'])
from ..qemu_config import QemuArchParams
QEMU_ARCH = QemuArchParams(linux_arch='x86_64',
kconfig='''
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y''',
qemu_arch='x86_64',
kernel_path='arch/x86/boot/bzImage',
kernel_command_line='console=ttyS0',
extra_qemu_params=[''])
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