projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b700e7f0 SJ |
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 | ||
| d83a7cb3 JP |
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 | ||
| c99a2be7 MB |
36 | What: /sys/kernel/livepatch/<patch>/force |
| 37 | Date: Nov 2017 | |
| 38 | KernelVersion: 4.15.0 | |
| 39 | Contact: live-patching@vger.kernel.org | |
| 40 | Description: | |
| 41 | A writable attribute that allows administrator to affect the | |
| 42 | course of an existing transition. Writing 1 clears | |
| 43 | TIF_PATCH_PENDING flag of all tasks and thus forces the tasks to | |
| 44 | the patched or unpatched state. Administrator should not | |
| 45 | use this feature without a clearance from a patch | |
| 46 | distributor. Removal (rmmod) of patch modules is permanently | |
| 47 | disabled when the feature is used. See | |
| 89e33ea7 | 48 | Documentation/livepatch/livepatch.rst for more information. |
| c99a2be7 | 49 | |
| b700e7f0 SJ |
50 | What: /sys/kernel/livepatch/<patch>/<object> |
| 51 | Date: Nov 2014 | |
| 52 | KernelVersion: 3.19.0 | |
| 53 | Contact: live-patching@vger.kernel.org | |
| 54 | Description: | |
| 55 | The object directory contains subdirectories for each function | |
| 56 | that is patched within the object. | |
| 57 | ||
| 444f9e99 | 58 | What: /sys/kernel/livepatch/<patch>/<object>/<function,sympos> |
| b700e7f0 SJ |
59 | Date: Nov 2014 |
| 60 | KernelVersion: 3.19.0 | |
| 61 | Contact: live-patching@vger.kernel.org | |
| 62 | Description: | |
| 63 | The function directory contains attributes regarding the | |
| 64 | properties and state of the patched function. | |
| 65 | ||
| 444f9e99 CA |
66 | The directory name contains the patched function name and a |
| 67 | sympos number corresponding to the nth occurrence of the symbol | |
| 68 | name in kallsyms for the patched object. | |
| 69 | ||
| b700e7f0 | 70 | There are currently no such attributes. |