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| author |  Davidlohr Bueso <dave@stgolabs.net>
| 2023-07-25 22:19:38 -0700 |
|---|---|---|
| committer |  Vishal Verma <vishal.l.verma@intel.com>
| 2023-07-28 13:16:54 -0600 |
| commit | 0fcde5989e8a54b2a155d8bcea21a7f99abb50f9 (patch) | |
| tree | e678cc8bbe6e00f6beed039eb7a6cf357500f381 /Documentation | |
| parent | tools/testing/cxl: Remove unused SZ_512G macro (diff) | |
| download | linux-0fcde5989e8a54b2a155d8bcea21a7f99abb50f9.tar.gz linux-0fcde5989e8a54b2a155d8bcea21a7f99abb50f9.tar.bz2 linux-0fcde5989e8a54b2a155d8bcea21a7f99abb50f9.zip | |
cxl/memdev: Improve sanitize ABI descriptions
Be more detailed about the CPU cache management situation. The same
goes for both sanitize and secure erase.
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20230726051940.3570-2-dave@stgolabs.net
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Vishal Verma <vishal.l.verma@intel.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-cxl | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl index 6350dd82b9a9..c4c4acb1f3b3 100644 --- a/Documentation/ABI/testing/sysfs-bus-cxl +++ b/Documentation/ABI/testing/sysfs-bus-cxl @@ -82,7 +82,11 @@ 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. What /sys/bus/cxl/devices/memX/security/erase @@ -92,7 +96,12 @@ 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. What: /sys/bus/cxl/devices/memX/firmware/ |