kernel/linux.git/tools/testing/selftests/livepatch/test-sysfs.sh, branch v7.2-rc1

selftests: livepatch: Check if stack_order sysfs attribute exists

2026-05-06T12:09:33+00:00

The commit 3dae09de4061 ("livepatch: Add stack_order sysfs attribute"), merged in v6.14, introduced a new sysfs attribute. In order to run the selftests on older kernels, check if given kernel has support for the attribute. If the attribute is not supported, skip the checks. Signed-off-by: Marcos Paulo de Souza Reviewed-by: Petr Mladek Acked-by: Joe Lawrence Link: https://patch.msgid.link/20260504-lp-tests-old-fixes-v5-6-0be26d94ab9a@suse.com Signed-off-by: Petr Mladek

selftests: livepatch: Check if replace sysfs attribute exists

2026-05-06T12:09:33+00:00

The commit adb68ed26a3e ("livepatch: Add "replace" sysfs attribute"), merged in v6.11, introduced a new sysfs attribute. In order to run the selftests on older kernels, check if given kernel has support for the attribute. If the attribute is not supported, skip the checks. While at it, create a local variable to hold the module name to be tested, instead of overwriting MOD_LIVEPATCH. Signed-off-by: Marcos Paulo de Souza Reviewed-by: Petr Mladek Acked-by: Joe Lawrence Link: https://patch.msgid.link/20260504-lp-tests-old-fixes-v5-5-0be26d94ab9a@suse.com Signed-off-by: Petr Mladek

selftests: livepatch: Check if patched sysfs attribute exists

2026-05-06T12:09:33+00:00

The commit bb26cfd9e77e ("livepatch: add sysfs entry "patched" for each klp_object") was merged in v6.1, introducing a new sysfs attribute. In order to run the selftests on older kernels, check if given kernel has support for the attribute. If the attribute is not supported, skip the checks. Along with this change, use MOD_LIVEPATCH2 variable instead of reassigning a new value to MOD_LIVEPATCH, and also use the variable names in the check_result, to avoid using the module names. Signed-off-by: Marcos Paulo de Souza Reviewed-by: Petr Mladek Acked-by: Joe Lawrence Link: https://patch.msgid.link/20260504-lp-tests-old-fixes-v5-4-0be26d94ab9a@suse.com Signed-off-by: Petr Mladek

selftests: livepatch: add test cases of stack_order sysfs interface

2024-12-09T10:47:21+00:00

Add selftest test cases to sysfs attribute 'stack_order'. Suggested-by: Petr Mladek Signed-off-by: Wardenjohn Reviewed-by: Petr Mladek Tested-by: Petr Mladek Link: https://lore.kernel.org/r/20241024083530.58775-1-zhangwarden@gmail.com [pmladek@suse.com: Substitute $SYSFS_KLP_DIR] Signed-off-by: Petr Mladek

selftests: livepatch: rename KLP_SYSFS_DIR to SYSFS_KLP_DIR

2024-10-22T15:12:46+00:00

This naming makes more sense according to the directory structure. Especially when we later add more paths. Addtionally replace `/sys/kernel/livepatch` with `$SYSFS_KLP_DIR` in the livepatch test files. Signed-off-by: Michael Vetter Reviewed-by: Miroslav Benes Reviewed-by: Joe Lawrence Tested-by: Marcos Paulo de Souza Reviewed-by: Marcos Paulo de Souza Reviewed-by: Petr Mladek Tested-by: Petr Mladek Link: https://lore.kernel.org/r/20241017200132.21946-2-mvetter@suse.com [pmladek@suse.com: Fix corrupted substitution] Signed-off-by: Petr Mladek

selftests/livepatch: Add selftests for "replace" sysfs attribute

2024-07-02T14:56:18+00:00

Add selftests for both atomic replace and non atomic replace livepatches. The result is as follows, TEST: sysfs test ... ok TEST: sysfs test object/patched ... ok TEST: sysfs test replace enabled ... ok TEST: sysfs test replace disabled ... ok Suggested-by: Marcos Paulo de Souza Signed-off-by: Yafang Shao Tested-by: Marcos Paulo de Souza Reviewed-by: Marcos Paulo de Souza Reviewed-by: Petr Mladek Acked-by: Miroslav Benes Link: https://lore.kernel.org/r/20240625151123.2750-3-laoar.shao@gmail.com Signed-off-by: Petr Mladek

livepatch: Move tests from lib/livepatch to selftests/livepatch

2024-01-22T17:29:47+00:00

The modules are being moved from lib/livepatch to tools/testing/selftests/livepatch/test_modules. This code moving will allow writing more complex tests, like for example an userspace C code that will call a livepatched kernel function. The modules are now built as out-of-tree modules, but being part of the kernel source means they will be maintained. Another advantage of the code moving is to be able to easily change, debug and rebuild the tests by running make on the selftests/livepatch directory, which is not currently possible since the modules on lib/livepatch are build and installed using the "modules" target. The current approach also keeps the ability to execute the tests manually by executing the scripts inside selftests/livepatch directory, as it's currently supported. If the modules are modified, they needed to be rebuilt before running the scripts though. The modules are built before running the selftests when using the kselftest invocations: make kselftest TARGETS=livepatch or make -C tools/testing/selftests/livepatch run_tests Having the modules being built as out-of-modules requires changing the currently used 'modprobe' by 'insmod' and adapt the test scripts that check for the kernel message buffer. Now it is possible to only compile the modules by running: make -C tools/testing/selftests/livepatch/ This way the test modules and other test program can be built in order to be packaged if so desired. As there aren't any modules being built on lib/livepatch, remove the TEST_LIVEPATCH Kconfig and it's references. Note: "make gen_tar" packages the pre-built binaries into the tarball. It means that it will store the test modules pre-built for the kernel running on the build host. Note that these modules need not binary compatible with the kernel built from the same sources. But the same is true for other packaged selftest binaries. The entire kernel sources are needed for rebuilding the selftests on another system. Reviewed-by: Joe Lawrence Reviewed-by: Petr Mladek Signed-off-by: Marcos Paulo de Souza Acked-by: Alexander Gordeev Signed-off-by: Shuah Khan

selftests/livepatch: add sysfs test

2022-09-23T14:06:38+00:00

Add a test for livepatch sysfs entries. Signed-off-by: Song Liu Reviewed-by: Petr Mladek Signed-off-by: Petr Mladek Link: https://lore.kernel.org/r/20220902205208.3117798-3-song@kernel.org