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Open Menu /Documentation/ABI/testing/sysfs-kernel-livepatch 
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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>/<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>/<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.