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Linux/tools/testing/selftests/livepatch/

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Name Size Last modified (GMT) Description
Back Parent directory 2019-12-24 12:24:18
File Makefile 170 bytes 2019-12-24 12:24:18
File README 1300 bytes 2019-12-24 12:24:18
File config 24 bytes 2019-12-24 12:24:18
File functions.sh 5923 bytes 2019-12-24 12:24:18
File test-callbacks.sh 23813 bytes 2019-12-24 12:24:18
File test-livepatch.sh 5776 bytes 2019-12-24 12:24:18
File test-shadow-vars.sh 2553 bytes 2019-12-24 12:24:18

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

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