diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2022-11-30 12:22:21 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-12-01 12:42:35 -0800 |
| commit | 2bb692f7a6cd0a7b2c29d8d5029c4469c4ec02dd (patch) | |
| tree | 81212a8b7662c105c24c35f322dc24c11a384b8d /include/uapi/linux | |
| parent | 410926e9d79b4aba516a6677f88e0c35cbbd5b04 (diff) | |
cxl/pmem: Add "Unlock" security command support
Create callback function to support the nvdimm_security_ops() ->unlock()
callback. Translate the operation to send "Unlock" security command for CXL
mem device.
When the mem device is unlocked, cpu_cache_invalidate_memregion() is called
in order to invalidate all CPU caches before attempting to access the mem
device.
See CXL rev3.0 spec section 8.2.9.8.6.4 for reference.
Reviewed-by: Davidlohr Bueso <dave@stgolabs.net>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166983614167.2734609.15124543712487741176.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/cxl_mem.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h index 7c0adcd68f4c..95dca8d4584f 100644 --- a/include/uapi/linux/cxl_mem.h +++ b/include/uapi/linux/cxl_mem.h @@ -45,6 +45,7 @@ ___C(SET_PASSPHRASE, "Set Passphrase"), \ ___C(DISABLE_PASSPHRASE, "Disable Passphrase"), \ ___C(FREEZE_SECURITY, "Freeze Security"), \ + ___C(UNLOCK, "Unlock"), \ ___C(MAX, "invalid / last command") #define ___C(a, b) CXL_MEM_COMMAND_ID_##a |