Fix error when checking number_of_ckids in cxl_tsp_validate_capability

According to CXL Spec 3.1 Table 11-32 Get Target Capabilities Response (Sheet 3 of 3) Byte Offset (1Ch): Number of CKIDs: Total number of CKIDs that the target supports. Valid only if CKID-based Encryption is set in Memory Encryption Features Supported. Shall be >=2 and < 2^13. One of the condition shall be: device_capabilities->number_of_ckids >= 0x2000 Signed-off-by: Min M Xu <[email protected]>
DMTF · Nov 20, 2024 · 34611a4 · 34611a4
1 parent 6ae0831
commit 34611a4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/library/cxl_tsp_requester_lib/cxl_tsp_req_get_capabilities.c b/library/cxl_tsp_requester_lib/cxl_tsp_req_get_capabilities.c
@@ -117,7 +117,7 @@ cxl_tsp_validate_capability (
 
     if ((memory_encryption_features_supported & CXL_TSP_MEMORY_ENCRYPTION_FEATURES_SUPPORT_CKID_BASED_ENCRYPTION) != 0) {
         if ((device_capabilities->number_of_ckids < 2) ||
-            (device_capabilities->number_of_ckids > 0x2000)) {
+            (device_capabilities->number_of_ckids >= 0x2000)) {
             return LIBSPDM_STATUS_INVALID_MSG_FIELD;
         }
     }