1 files changed, 8 insertions, 2 deletions
diff --git a/ArmPkg/Include/Library/ArmSvcLib.h b/ArmPkg/Include/Library/ArmSvcLib.h
index a94ead1965..a4414270f3 100644
--- a/ArmPkg/Include/Library/ArmSvcLib.h
+++ b/ArmPkg/Include/Library/ArmSvcLib.h
@@ -27,10 +27,16 @@ typedef struct {
 /**
   Trigger an SVC call
 
-  SVC calls can take up to 7 arguments and return up to 4 return values.
-  Therefore, the 4 first fields in the ARM_SVC_ARGS structure are used
+  SVC calls can take up to 8 arguments and return up to 8 return values.
+  Therefore, the 8 first fields in the ARM_SVC_ARGS structure are used
   for both input and output values.
 
+  @param[in, out]    Args Arguments to be passed as part of the SVC call
+                     The return values of the SVC call are also placed
+                     in the same structure
+
+  @retval None
+
 **/
 VOID
 ArmCallSvc (