On Fri, Jun 24, 2022 at 04:43:59PM +0800, David Gow wrote: > There are several tests which depend on PCI, and hence need a bunch of > extra options to run under UML. This makes it awkward to give > configuration instructions (whether in documentation, or as part of a > .kunitconfig file), as two separate, incompatible sets of config options > are required for UML and "most other architectures". > > For non-UML architectures, it's possible to add default kconfig options > via the qemu_config python files, but there's no equivalent for UML. Add > a new tools/testing/kunit/configs/arch_uml.config file containing extra > kconfig options to use on UML. > > Signed-off-by: David Gow <davidgow@xxxxxxxxxx> Tested-by: José Expósito <jose.exposito89@xxxxxxxxx> After applying this patch and its dependencies, I can confirm that it is possible to run the DRM tests with the following command: $ ./tools/testing/kunit/kunit.py run --kunitconfig=drivers/gpu/drm/tests Added a TODO for myself to remove the extra flag from the DRM docs once this patch is merged. Thanks a lot for making it easier! Jose > --- > > NOTE: This has dependencies on the 'make --kunitconfig repeatable' > series: > https://lore.kernel.org/linux-kselftest/20220624001247.3255978-1-dlatypov@xxxxxxxxxx/ > which, in turn, depends on: > https://lore.kernel.org/linux-kselftest/20220520224200.3764027-1-dlatypov@xxxxxxxxxx/ > Please apply those first. > > Changes since RFC: > https://lore.kernel.org/linux-kselftest/20220622035326.759935-1-davidgow@xxxxxxxxxx/ > - Rebase on top of the previous kconfig patches. > - Fix a missing make_arch_qemuconfig->make_arch_config rename (Thanks > Brendan) > - Fix the tests to use the base LinuxSourceTreeOperations class, which > has no default kconfig options (and so won't conflict with those set > in the tests). Only test_build_reconfig_existing_config actually > failed, but I updated a few more in case the defaults changed. > > > --- > tools/testing/kunit/configs/arch_uml.config | 5 +++++ > tools/testing/kunit/kunit_kernel.py | 14 ++++++++++---- > tools/testing/kunit/kunit_tool_test.py | 12 ++++++++++++ > 3 files changed, 27 insertions(+), 4 deletions(-) > create mode 100644 tools/testing/kunit/configs/arch_uml.config > > diff --git a/tools/testing/kunit/configs/arch_uml.config b/tools/testing/kunit/configs/arch_uml.config > new file mode 100644 > index 000000000000..e824ce43b05a > --- /dev/null > +++ b/tools/testing/kunit/configs/arch_uml.config > @@ -0,0 +1,5 @@ > +# Config options which are added to UML builds by default > + > +# Enable virtio/pci, as a lot of tests require it. > +CONFIG_VIRTIO_UML=y > +CONFIG_UML_PCI_OVER_VIRTIO=y > diff --git a/tools/testing/kunit/kunit_kernel.py b/tools/testing/kunit/kunit_kernel.py > index fc415ff7530e..127598fb994b 100644 > --- a/tools/testing/kunit/kunit_kernel.py > +++ b/tools/testing/kunit/kunit_kernel.py > @@ -26,6 +26,7 @@ KUNITCONFIG_PATH = '.kunitconfig' > OLD_KUNITCONFIG_PATH = 'last_used_kunitconfig' > DEFAULT_KUNITCONFIG_PATH = 'tools/testing/kunit/configs/default.config' > BROKEN_ALLCONFIG_PATH = 'tools/testing/kunit/configs/broken_on_uml.config' > +UML_KCONFIG_PATH = 'tools/testing/kunit/configs/arch_uml.config' > OUTFILE_PATH = 'test.log' > ABS_TOOL_PATH = os.path.abspath(os.path.dirname(__file__)) > QEMU_CONFIGS_DIR = os.path.join(ABS_TOOL_PATH, 'qemu_configs') > @@ -53,7 +54,7 @@ class LinuxSourceTreeOperations: > except subprocess.CalledProcessError as e: > raise ConfigError(e.output.decode()) > > - def make_arch_qemuconfig(self, base_kunitconfig: kunit_config.Kconfig) -> kunit_config.Kconfig: > + def make_arch_config(self, base_kunitconfig: kunit_config.Kconfig) -> kunit_config.Kconfig: > return base_kunitconfig > > def make_allyesconfig(self, build_dir: str, make_options) -> None: > @@ -109,7 +110,7 @@ class LinuxSourceTreeOperationsQemu(LinuxSourceTreeOperations): > self._kernel_command_line = qemu_arch_params.kernel_command_line + ' kunit_shutdown=reboot' > self._extra_qemu_params = qemu_arch_params.extra_qemu_params > > - def make_arch_qemuconfig(self, base_kunitconfig: kunit_config.Kconfig) -> kunit_config.Kconfig: > + def make_arch_config(self, base_kunitconfig: kunit_config.Kconfig) -> kunit_config.Kconfig: > kconfig = kunit_config.parse_from_string(self._kconfig) > kconfig.merge_in_entries(base_kunitconfig) > return kconfig > @@ -138,6 +139,11 @@ class LinuxSourceTreeOperationsUml(LinuxSourceTreeOperations): > def __init__(self, cross_compile=None): > super().__init__(linux_arch='um', cross_compile=cross_compile) > > + def make_arch_config(self, base_kunitconfig: kunit_config.Kconfig) -> kunit_config.Kconfig: > + kconfig = kunit_config.parse_file(UML_KCONFIG_PATH) > + kconfig.merge_in_entries(base_kunitconfig) > + return kconfig > + > def make_allyesconfig(self, build_dir: str, make_options) -> None: > kunit_parser.print_with_timestamp( > 'Enabling all CONFIGs for UML...') > @@ -297,7 +303,7 @@ class LinuxSourceTree: > if build_dir and not os.path.exists(build_dir): > os.mkdir(build_dir) > try: > - self._kconfig = self._ops.make_arch_qemuconfig(self._kconfig) > + self._kconfig = self._ops.make_arch_config(self._kconfig) > self._kconfig.write_to_file(kconfig_path) > self._ops.make_olddefconfig(build_dir, make_options) > except ConfigError as e: > @@ -328,7 +334,7 @@ class LinuxSourceTree: > return self.build_config(build_dir, make_options) > > existing_kconfig = kunit_config.parse_file(kconfig_path) > - self._kconfig = self._ops.make_arch_qemuconfig(self._kconfig) > + self._kconfig = self._ops.make_arch_config(self._kconfig) > > if self._kconfig.is_subset_of(existing_kconfig) and not self._kunitconfig_changed(build_dir): > return True > diff --git a/tools/testing/kunit/kunit_tool_test.py b/tools/testing/kunit/kunit_tool_test.py > index e21ae1331350..08cb2dc8ef7d 100755 > --- a/tools/testing/kunit/kunit_tool_test.py > +++ b/tools/testing/kunit/kunit_tool_test.py > @@ -430,6 +430,10 @@ class LinuxSourceTreeTest(unittest.TestCase): > f.write('CONFIG_KUNIT=y') > > tree = kunit_kernel.LinuxSourceTree(build_dir) > + # Stub out the source tree operations, so we don't have > + # the defaults for any given architecture get in the > + # way. > + tree._ops = kunit_kernel.LinuxSourceTreeOperations(None, None) > mock_build_config = mock.patch.object(tree, 'build_config').start() > > # Should generate the .config > @@ -447,6 +451,10 @@ class LinuxSourceTreeTest(unittest.TestCase): > f.write('CONFIG_KUNIT=y\nCONFIG_KUNIT_TEST=y') > > tree = kunit_kernel.LinuxSourceTree(build_dir) > + # Stub out the source tree operations, so we don't have > + # the defaults for any given architecture get in the > + # way. > + tree._ops = kunit_kernel.LinuxSourceTreeOperations(None, None) > mock_build_config = mock.patch.object(tree, 'build_config').start() > > self.assertTrue(tree.build_reconfig(build_dir, make_options=[])) > @@ -463,6 +471,10 @@ class LinuxSourceTreeTest(unittest.TestCase): > f.write('CONFIG_KUNIT=y\nCONFIG_KUNIT_TEST=y') > > tree = kunit_kernel.LinuxSourceTree(build_dir) > + # Stub out the source tree operations, so we don't have > + # the defaults for any given architecture get in the > + # way. > + tree._ops = kunit_kernel.LinuxSourceTreeOperations(None, None) > mock_build_config = mock.patch.object(tree, 'build_config').start() > > # ... so we should trigger a call to build_config() > -- > 2.37.0.rc0.161.g10f37bed90-goog >
