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>
CXL_CMD(GET_SECURITY_STATE, 0, 0x4, 0),
CXL_CMD(SET_PASSPHRASE, 0x60, 0, 0),
CXL_CMD(DISABLE_PASSPHRASE, 0x40, 0, 0),
+ CXL_CMD(FREEZE_SECURITY, 0, 0, 0),
};
/*
CXL_MBOX_OP_GET_SECURITY_STATE = 0x4500,
CXL_MBOX_OP_SET_PASSPHRASE = 0x4501,
CXL_MBOX_OP_DISABLE_PASSPHRASE = 0x4502,
+ CXL_MBOX_OP_FREEZE_SECURITY = 0x4504,
CXL_MBOX_OP_MAX = 0x10000
};
return rc;
}
+static int cxl_pmem_security_freeze(struct nvdimm *nvdimm)
+{
+ struct cxl_nvdimm *cxl_nvd = nvdimm_provider_data(nvdimm);
+ struct cxl_memdev *cxlmd = cxl_nvd->cxlmd;
+ struct cxl_dev_state *cxlds = cxlmd->cxlds;
+
+ return cxl_mbox_send_cmd(cxlds, CXL_MBOX_OP_FREEZE_SECURITY, NULL, 0, NULL, 0);
+}
+
static const struct nvdimm_security_ops __cxl_security_ops = {
.get_flags = cxl_pmem_get_security_flags,
.change_key = cxl_pmem_security_change_key,
.disable = cxl_pmem_security_disable,
+ .freeze = cxl_pmem_security_freeze,
};
const struct nvdimm_security_ops *cxl_security_ops = &__cxl_security_ops;
___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