x86/mm/pat: Don't report PAT on CPUs that don't support it
[linux/fpc-iii.git] / Documentation / ABI / testing / sysfs-kernel-livepatch
blobda87f43aec584de74945714247c6849bebf0cfa7
1 What:           /sys/kernel/livepatch
2 Date:           Nov 2014
3 KernelVersion:  3.19.0
4 Contact:        live-patching@vger.kernel.org
5 Description:
6                 Interface for kernel live patching
8                 The /sys/kernel/livepatch directory contains subdirectories for
9                 each loaded live patch module.
11 What:           /sys/kernel/livepatch/<patch>
12 Date:           Nov 2014
13 KernelVersion:  3.19.0
14 Contact:        live-patching@vger.kernel.org
15 Description:
16                 The patch directory contains subdirectories for each kernel
17                 object (vmlinux or a module) in which it patched functions.
19 What:           /sys/kernel/livepatch/<patch>/enabled
20 Date:           Nov 2014
21 KernelVersion:  3.19.0
22 Contact:        live-patching@vger.kernel.org
23 Description:
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.
28 What:           /sys/kernel/livepatch/<patch>/<object>
29 Date:           Nov 2014
30 KernelVersion:  3.19.0
31 Contact:        live-patching@vger.kernel.org
32 Description:
33                 The object directory contains subdirectories for each function
34                 that is patched within the object.
36 What:           /sys/kernel/livepatch/<patch>/<object>/<function,sympos>
37 Date:           Nov 2014
38 KernelVersion:  3.19.0
39 Contact:        live-patching@vger.kernel.org
40 Description:
41                 The function directory contains attributes regarding the
42                 properties and state of the patched function.
44                 The directory name contains the patched function name and a
45                 sympos number corresponding to the nth occurrence of the symbol
46                 name in kallsyms for the patched object.
48                 There are currently no such attributes.