blob: a5df9b4910dc45fc528735004f49a02b20619e6f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
What: /sys/kernel/livepatch
Date: Nov 2014
KernelVersion: 3.19.0
Contact: live-patching@vger.kernel.org
Description:
Interface for kernel live patching
The /sys/kernel/livepatch directory contains subdirectories for
each loaded live patch module.
What: /sys/kernel/livepatch/<patch>
Date: Nov 2014
KernelVersion: 3.19.0
Contact: live-patching@vger.kernel.org
Description:
The patch directory contains subdirectories for each kernel
object (vmlinux or a module) in which it patched functions.
What: /sys/kernel/livepatch/<patch>/enabled
Date: Nov 2014
KernelVersion: 3.19.0
Contact: live-patching@vger.kernel.org
Description:
A writable attribute that indicates whether the patched
code is currently applied. Writing 0 will disable the patch
while writing 1 will re-enable the patch.
What: /sys/kernel/livepatch/<patch>/transition
Date: Feb 2017
KernelVersion: 4.12.0
Contact: live-patching@vger.kernel.org
Description:
An attribute which indicates whether the patch is currently in
transition.
What: /sys/kernel/livepatch/<patch>/force
Date: Nov 2017
KernelVersion: 4.15.0
Contact: live-patching@vger.kernel.org
Description:
A writable attribute that allows administrator to affect the
course of an existing transition. Writing 1 clears
TIF_PATCH_PENDING flag of all tasks and thus forces the tasks to
the patched or unpatched state. Administrator should not
use this feature without a clearance from a patch
distributor. Removal (rmmod) of patch modules is permanently
disabled when the feature is used. See
Documentation/livepatch/livepatch.rst for more information.
What: /sys/kernel/livepatch/<patch>/<object>
Date: Nov 2014
KernelVersion: 3.19.0
Contact: live-patching@vger.kernel.org
Description:
The object directory contains subdirectories for each function
that is patched within the object.
What: /sys/kernel/livepatch/<patch>/<object>/patched
Date: August 2022
KernelVersion: 6.1.0
Contact: live-patching@vger.kernel.org
Description:
An attribute which indicates whether the object is currently
patched.
What: /sys/kernel/livepatch/<patch>/<object>/<function,sympos>
Date: Nov 2014
KernelVersion: 3.19.0
Contact: live-patching@vger.kernel.org
Description:
The function directory contains attributes regarding the
properties and state of the patched function.
The directory name contains the patched function name and a
sympos number corresponding to the nth occurrence of the symbol
name in kallsyms for the patched object.
There are currently no such attributes.
|
