Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) ====================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) Livepatch Self Tests
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) ====================
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) This is a small set of sanity tests for the kernel livepatching.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) The test suite loads and unloads several test kernel modules to verify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) livepatch behavior.  Debug information is logged to the kernel's message
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) buffer and parsed for expected messages.  (Note: the tests will compare
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) the message buffer for only the duration of each individual test.)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) Config
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) ------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) Set these config options and their prerequisites:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) CONFIG_LIVEPATCH=y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) CONFIG_TEST_LIVEPATCH=m
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) Running the tests
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) -----------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) Test kernel modules are built as part of lib/ (make modules) and need to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) be installed (make modules_install) as the test scripts will modprobe
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) them.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) To run the livepatch selftests, from the top of the kernel source tree:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)   % make -C tools/testing/selftests TARGETS=livepatch run_tests
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) Adding tests
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) ------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) See the common functions.sh file for the existing collection of utility
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) functions, most importantly setup_config(), start_test() and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) check_result().  The latter function greps the kernel's ring buffer for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) "livepatch:" and "test_klp" strings, so tests be sure to include one of
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) those strings for result comparison.  Other utility functions include
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) general module loading and livepatch loading helpers (waiting for patch
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) transitions, sysfs entries, etc.)