1What:		/sys/kernel/livepatch
 2Date:		Nov 2014
 3KernelVersion:	3.19.0
 4Contact:	live-patching@vger.kernel.org
 5Description:
 6		Interface for kernel live patching
 7
 8		The /sys/kernel/livepatch directory contains subdirectories for
 9		each loaded live patch module.
10
11What:		/sys/kernel/livepatch/<patch>
12Date:		Nov 2014
13KernelVersion:	3.19.0
14Contact:	live-patching@vger.kernel.org
15Description:
16		The patch directory contains subdirectories for each kernel
17		object (vmlinux or a module) in which it patched functions.
18
19What:		/sys/kernel/livepatch/<patch>/enabled
20Date:		Nov 2014
21KernelVersion:	3.19.0
22Contact:	live-patching@vger.kernel.org
23Description:
24		A writable attribute that indicates whether the patched
25		code is currently applied.  Writing 0 will disable the patch
26		while writing 1 will re-enable the patch.
27
28What:		/sys/kernel/livepatch/<patch>/transition
29Date:		Feb 2017
30KernelVersion:	4.12.0
31Contact:	live-patching@vger.kernel.org
32Description:
33		An attribute which indicates whether the patch is currently in
34		transition.
35
36What:		/sys/kernel/livepatch/<patch>/force
37Date:		Nov 2017
38KernelVersion:	4.15.0
39Contact:	live-patching@vger.kernel.org
40Description:
41		A writable attribute that allows administrator to affect the
42		course of an existing transition. Writing 1 clears
43		TIF_PATCH_PENDING flag of all tasks and thus forces the tasks to
44		the patched or unpatched state. Administrator should not
45		use this feature without a clearance from a patch
46		distributor. Removal (rmmod) of patch modules is permanently
47		disabled when the feature is used. See
48		Documentation/livepatch/livepatch.rst for more information.
49
50What:		/sys/kernel/livepatch/<patch>/replace
51Date:		Jun 2024
52KernelVersion:	6.11.0
53Contact:	live-patching@vger.kernel.org
54Description:
55		An attribute which indicates whether the patch supports
56		atomic-replace.
57
58What:		/sys/kernel/livepatch/<patch>/<object>
59Date:		Nov 2014
60KernelVersion:	3.19.0
61Contact:	live-patching@vger.kernel.org
62Description:
63		The object directory contains subdirectories for each function
64		that is patched within the object.
65
66What:		/sys/kernel/livepatch/<patch>/<object>/patched
67Date:		August 2022
68KernelVersion:	6.1.0
69Contact:	live-patching@vger.kernel.org
70Description:
71		An attribute which indicates whether the object is currently
72		patched.
73
74What:		/sys/kernel/livepatch/<patch>/<object>/<function,sympos>
75Date:		Nov 2014
76KernelVersion:	3.19.0
77Contact:	live-patching@vger.kernel.org
78Description:
79		The function directory contains attributes regarding the
80		properties and state of the patched function.
81
82		The directory name contains the patched function name and a
83		sympos number corresponding to the nth occurrence of the symbol
84		name in kallsyms for the patched object.
85
86		There are currently no such attributes.