tools/testing/cxl: Add "Freeze Security State" security opcode support

Add support to emulate a CXL mem device support the "Freeze Security State"
operation.

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166983613604.2734609.1960672960407811362.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
index 77774a951a812675e176f5c4d82676711d2bf34b..45c6e6d3cfbb903b6ba8b4edf283dc8144929fe7 100644 (file)
--- a/tools/testing/cxl/test/mem.c
+++ b/tools/testing/cxl/test/mem.c
@@ -314,6 +314,23 @@ static int mock_disable_passphrase(struct cxl_dev_state *cxlds, struct cxl_mbox_
        return 0;
 }
 
+static int mock_freeze_security(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
+{
+       struct cxl_mock_mem_pdata *mdata = dev_get_platdata(cxlds->dev);
+
+       if (cmd->size_in != 0)
+               return -EINVAL;
+
+       if (cmd->size_out != 0)
+               return -EINVAL;
+
+       if (mdata->security_state & CXL_PMEM_SEC_STATE_FROZEN)
+               return 0;
+
+       mdata->security_state |= CXL_PMEM_SEC_STATE_FROZEN;
+       return 0;
+}
+
 static int mock_get_lsa(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
 {
        struct cxl_mbox_get_lsa *get_lsa = cmd->payload_in;
@@ -418,6 +435,9 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *
        case CXL_MBOX_OP_DISABLE_PASSPHRASE:
                rc = mock_disable_passphrase(cxlds, cmd);
                break;
+       case CXL_MBOX_OP_FREEZE_SECURITY:
+               rc = mock_freeze_security(cxlds, cmd);
+               break;
        default:
                break;
        }