[PATCH 7/7] cxl/test: Add "Secure Erase" opcode support

[Davidlohr Bueso <dave@stgolabs.net>]

Add support to emulate a CXL mem device support the "Secure Erase"
operation.

Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
---
 tools/testing/cxl/test/mem.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/tools/testing/cxl/test/mem.c b/tools/testing/cxl/test/mem.c
index d4466cb27947..8a22a4e592c6 100644
--- a/tools/testing/cxl/test/mem.c
+++ b/tools/testing/cxl/test/mem.c
@@ -519,6 +519,30 @@ static int mock_sanitize(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *cmd)
 	return 0; /* assume less than 2 secs, no bg */
 }
 
+static int mock_secure_erase(struct cxl_dev_state *cxlds,
+			     struct cxl_mbox_cmd *cmd)
+{
+	struct cxl_mockmem_data *mdata = dev_get_drvdata(cxlds->dev);
+
+	if (cmd->size_in != 0)
+		return -EINVAL;
+
+	if (cmd->size_out != 0)
+		return -EINVAL;
+
+	if (mdata->security_state & CXL_PMEM_SEC_STATE_USER_PASS_SET) {
+		cmd->return_code = CXL_MBOX_CMD_RC_SECURITY;
+		return -ENXIO;
+	}
+
+	if (mdata->security_state & CXL_PMEM_SEC_STATE_LOCKED) {
+		cmd->return_code = CXL_MBOX_CMD_RC_SECURITY;
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
 static int mock_get_security_state(struct cxl_dev_state *cxlds,
 				   struct cxl_mbox_cmd *cmd)
 {
@@ -949,6 +973,9 @@ static int cxl_mock_mbox_send(struct cxl_dev_state *cxlds, struct cxl_mbox_cmd *
 	case CXL_MBOX_OP_SANITIZE:
 		rc = mock_sanitize(cxlds, cmd);
 		break;
+	case CXL_MBOX_OP_SECURE_ERASE:
+		rc = mock_secure_erase(cxlds, cmd);
+		break;
 	case CXL_MBOX_OP_GET_SECURITY_STATE:
 		rc = mock_get_security_state(cxlds, cmd);
 		break;
-- 
2.39.2