bb26cfd9e7
Add per klp_object sysfs entry "patched". It makes it easier to debug typos in the module name. Signed-off-by: Song Liu <song@kernel.org> Reviewed-by: Joe Lawrence <joe.lawrence@redhat.com> [pmladek@suse.com: Updated kernel version when the sysfs file will be introduced] Reviewed-by: Petr Mladek <pmladek@suse.com> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20220902205208.3117798-2-song@kernel.org
2.5 KiB
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/ 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//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//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//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//