cxl/test: Add Secure Erase opcode support

Add support to emulate the CXL the "Secure Erase" operation.

Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
Link: https://lore.kernel.org/r/20230612181038.14421-8-dave@stgolabs.net
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 faa484ea5b0b0f3a9a6de18785ac8d39d86327dc..97de0d3b2fd055881c5521cf7ffe2b2a782a725d 100644 (file)
--- a/tools/testing/cxl/test/mem.c
+++ b/tools/testing/cxl/test/mem.c
@@ -557,6 +557,30 @@ 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)
 {
@@ -1178,6 +1202,9 @@ 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;