From 3b502e886d01c2f96b2774176be4c7bceef2516b Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Wed, 30 Nov 2022 12:22:32 -0700 Subject: cxl/pmem: Add "Passphrase Secure Erase" security command support Create callback function to support the nvdimm_security_ops() ->erase() callback. Translate the operation to send "Passphrase Secure Erase" security command for CXL memory device. When the mem device is secure erased, cpu_cache_invalidate_memregion() is called in order to invalidate all CPU caches before attempting to access the mem device again. See CXL 3.0 spec section 8.2.9.8.6.6 for reference. Reviewed-by: Jonathan Cameron Signed-off-by: Dave Jiang Link: https://lore.kernel.org/r/166983615293.2734609.10358657600295932156.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Dan Williams --- include/uapi/linux/cxl_mem.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/cxl_mem.h b/include/uapi/linux/cxl_mem.h index 95dca8d4584f..82bdad4ce5de 100644 --- a/include/uapi/linux/cxl_mem.h +++ b/include/uapi/linux/cxl_mem.h @@ -46,6 +46,7 @@ ___C(DISABLE_PASSPHRASE, "Disable Passphrase"), \ ___C(FREEZE_SECURITY, "Freeze Security"), \ ___C(UNLOCK, "Unlock"), \ + ___C(PASSPHRASE_SECURE_ERASE, "Passphrase Secure Erase"), \ ___C(MAX, "invalid / last command") #define ___C(a, b) CXL_MEM_COMMAND_ID_##a -- cgit v1.2.3