1 files changed, 23 insertions, 4 deletions
diff --git a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h
index 3672db939b..0be4984f87 100644
--- a/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h
+++ b/SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h
@@ -55,16 +55,35 @@ Tcg2NotifyMmReady (
   );
 
 /**
-  This function is an abstraction layer for implementation specific Mm buffer validation routine.
+  This function is for the Primary Buffer validation routine.
+  The Primary Buffer is the communication buffer requested from
+  Communicate protocol/PPI.
 
   @param Buffer  The buffer start address to be checked.
   @param Length  The buffer length to be checked.
 
-  @retval TRUE  This buffer is valid per processor architecture and not overlap with SMRAM.
-  @retval FALSE This buffer is not valid per processor architecture or overlap with SMRAM.
+  @retval TRUE  This buffer is valid.
+  @retval FALSE This buffer is not valid.
 **/
 BOOLEAN
-IsBufferOutsideMmValid (
+Tcg2IsPrimaryBufferValid (
+  IN EFI_PHYSICAL_ADDRESS  Buffer,
+  IN UINT64                Length
+  );
+
+/**
+  This function is for the NonPrimary Buffer validation routine.
+  The NonPrimary Buffer is the buffer which might be pointed from the
+  communication buffer.
+
+  @param Buffer  The buffer start address to be checked.
+  @param Length  The buffer length to be checked.
+
+  @retval TRUE  This buffer is valid.
+  @retval FALSE This buffer is not valid.
+**/
+BOOLEAN
+Tcg2IsNonPrimaryBufferValid (
   IN EFI_PHYSICAL_ADDRESS  Buffer,
   IN UINT64                Length
   );