| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 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 |
| 7 | |
| 8 | The /sys/kernel/livepatch directory contains subdirectories for |
| 9 | each loaded live patch module. |
| 10 | |
| 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. |
| 18 | |
| 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. |
| 27 | |
| 28 | What: /sys/kernel/livepatch/<patch>/transition |
| 29 | Date: Feb 2017 |
| 30 | KernelVersion: 4.12.0 |
| 31 | Contact: live-patching@vger.kernel.org |
| 32 | Description: |
| 33 | An attribute which indicates whether the patch is currently in |
| 34 | transition. |
| 35 | |
| 36 | What: /sys/kernel/livepatch/<patch>/<object> |
| 37 | Date: Nov 2014 |
| 38 | KernelVersion: 3.19.0 |
| 39 | Contact: live-patching@vger.kernel.org |
| 40 | Description: |
| 41 | The object directory contains subdirectories for each function |
| 42 | that is patched within the object. |
| 43 | |
| 44 | What: /sys/kernel/livepatch/<patch>/<object>/<function,sympos> |
| 45 | Date: Nov 2014 |
| 46 | KernelVersion: 3.19.0 |
| 47 | Contact: live-patching@vger.kernel.org |
| 48 | Description: |
| 49 | The function directory contains attributes regarding the |
| 50 | properties and state of the patched function. |
| 51 | |
| 52 | The directory name contains the patched function name and a |
| 53 | sympos number corresponding to the nth occurrence of the symbol |
| 54 | name in kallsyms for the patched object. |
| 55 | |
| 56 | There are currently no such attributes. |