diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-08-03 15:41:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-08-03 15:41:48 -0700 |
| commit | 638c1913d2b01ab48159f0723fbf98483579934f (patch) | |
| tree | 2d4970fe7cc396835ecfc8e2950990f4d8cfd38c /Documentation | |
| parent | 999f6631866e9ea81add935b9c6ebaab0579d259 (diff) | |
| parent | ad64f5952ce3ea565c7f76ec37ab41df0dde773a (diff) | |
Merge tag 'cxl-fixes-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull cxl fixes from Vishal Verma:
- Fixup the Sanitixe device ABI that was merged for v6.5 to hide some
sysfs files when the necessary support is missing. Update the ABI
documentation around this as well.
* tag 'cxl-fixes-6.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/memdev: Only show sanitize sysfs files when supported
cxl/memdev: Document security state in kern-doc
cxl/memdev: Improve sanitize ABI descriptions
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-cxl | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl index 6350dd82b9a9..087f762ebfd5 100644 --- a/Documentation/ABI/testing/sysfs-bus-cxl +++ b/Documentation/ABI/testing/sysfs-bus-cxl @@ -82,7 +82,12 @@ Description: whether it resides in persistent capacity, volatile capacity, or the LSA, is made permanently unavailable by whatever means is appropriate for the media type. This functionality requires - the device to be not be actively decoding any HPA ranges. + the device to be disabled, that is, not actively decoding any + HPA ranges. This permits avoiding explicit global CPU cache + management, relying instead for it to be done when a region + transitions between software programmed and hardware committed + states. If this file is not present, then there is no hardware + support for the operation. What /sys/bus/cxl/devices/memX/security/erase @@ -92,7 +97,13 @@ Contact: linux-cxl@vger.kernel.org Description: (WO) Write a boolean 'true' string value to this attribute to secure erase user data by changing the media encryption keys for - all user data areas of the device. + all user data areas of the device. This functionality requires + the device to be disabled, that is, not actively decoding any + HPA ranges. This permits avoiding explicit global CPU cache + management, relying instead for it to be done when a region + transitions between software programmed and hardware committed + states. If this file is not present, then there is no hardware + support for the operation. What: /sys/bus/cxl/devices/memX/firmware/ |