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cxl/pmem: Add "Freeze Security State" security command support

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Create callback function to support the nvdimm_security_ops() ->freeze()
callback. Translate the operation to send "Freeze Security State" security
command for CXL memory device.

See CXL rev3.0 spec section 8.2.9.8.6.5 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/166983613019.2734609.10645754779802492122.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dave Jiang
2022-11-30 12:22:10 -07:00
committed by Dan Williams
parent abf0c8380a
commit a072f7b797
4 changed files with 13 additions and 0 deletions
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1
include/uapi/linux/cxl_mem.h
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@@ -44,6 +44,7 @@
___C(GET_SECURITY_STATE, "Get Security State"), \
___C(SET_PASSPHRASE, "Set Passphrase"), \
___C(DISABLE_PASSPHRASE, "Disable Passphrase"), \
___C(FREEZE_SECURITY, "Freeze Security"), \
___C(MAX, "invalid / last command")
#define ___C(a, b) CXL_MEM_COMMAND_ID_##a