From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- tools/testing/selftests/livepatch/README | 43 ++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 tools/testing/selftests/livepatch/README (limited to 'tools/testing/selftests/livepatch/README') diff --git a/tools/testing/selftests/livepatch/README b/tools/testing/selftests/livepatch/README new file mode 100644 index 0000000000..0942dd5826 --- /dev/null +++ b/tools/testing/selftests/livepatch/README @@ -0,0 +1,43 @@ +==================== +Livepatch Self Tests +==================== + +This is a small set of sanity tests for the kernel livepatching. + +The test suite loads and unloads several test kernel modules to verify +livepatch behavior. Debug information is logged to the kernel's message +buffer and parsed for expected messages. (Note: the tests will compare +the message buffer for only the duration of each individual test.) + + +Config +------ + +Set these config options and their prerequisites: + +CONFIG_LIVEPATCH=y +CONFIG_TEST_LIVEPATCH=m + + +Running the tests +----------------- + +Test kernel modules are built as part of lib/ (make modules) and need to +be installed (make modules_install) as the test scripts will modprobe +them. + +To run the livepatch selftests, from the top of the kernel source tree: + + % make -C tools/testing/selftests TARGETS=livepatch run_tests + + +Adding tests +------------ + +See the common functions.sh file for the existing collection of utility +functions, most importantly setup_config(), start_test() and +check_result(). The latter function greps the kernel's ring buffer for +"livepatch:" and "test_klp" strings, so tests be sure to include one of +those strings for result comparison. Other utility functions include +general module loading and livepatch loading helpers (waiting for patch +transitions, sysfs entries, etc.) -- cgit v1.2.3