[PATCHv3 3/3] kernel: add sysfs documentation for live patching

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Adds sysfs interface documentation to Documentation/ABI/testing/

Signed-off-by: Seth Jennings <sjenning@xxxxxxxxxx>
---
 Documentation/ABI/testing/sysfs-kernel-livepatch | 44 ++++++++++++++++++++++++
 MAINTAINERS                                      |  1 +
 2 files changed, 45 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-kernel-livepatch

diff --git a/Documentation/ABI/testing/sysfs-kernel-livepatch b/Documentation/ABI/testing/sysfs-kernel-livepatch
new file mode 100644
index 0000000..5bf42a8
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-kernel-livepatch
@@ -0,0 +1,44 @@
+What:		/sys/kernel/livepatch
+Date:		Nov 2014
+KernelVersion:	3.19.0
+Contact:	live-patching@xxxxxxxxxxxxxxx
+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@xxxxxxxxxxxxxxx
+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@xxxxxxxxxxxxxxx
+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>/<object>
+Date:		Nov 2014
+KernelVersion:	3.19.0
+Contact:	live-patching@xxxxxxxxxxxxxxx
+Description:
+		The object directory contains subdirectories for each function
+		that is patched within the object.
+
+What:		/sys/kernel/livepatch/<patch>/<object>/<function>
+Date:		Nov 2014
+KernelVersion:	3.19.0
+Contact:	live-patching@xxxxxxxxxxxxxxx
+Description:
+		The function directory contains attributes regarding the
+		properties and state of the patched function.
+
+		There are currently no such attributes.
diff --git a/MAINTAINERS b/MAINTAINERS
index c7f49ae..7985293 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5725,6 +5725,7 @@ F:	kernel/livepatch/
 F:	include/linux/livepatch.h
 F:	arch/x86/include/asm/livepatch.h
 F:	arch/x86/kernel/livepatch.c
+F:	Documentation/ABI/testing/sysfs-kernel-livepatch
 L:	live-patching@xxxxxxxxxxxxxxx
 
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