1 files changed, 6 insertions, 0 deletions
diff --git a/UefiCpuPkg/ResetVector/Vtf0/Ia16/Real16ToFlat32.asm b/UefiCpuPkg/ResetVector/Vtf0/Ia16/Real16ToFlat32.asm
index 146df600a6..bc68c8dd74 100644
--- a/UefiCpuPkg/ResetVector/Vtf0/Ia16/Real16ToFlat32.asm
+++ b/UefiCpuPkg/ResetVector/Vtf0/Ia16/Real16ToFlat32.asm
@@ -21,6 +21,12 @@ BITS    16
 ;
 ; Modified:  EAX, EBX
 ;
+; @param[out]     DS       Selector allowing flat access to all addresses
+; @param[out]     ES       Selector allowing flat access to all addresses
+; @param[out]     FS       Selector allowing flat access to all addresses
+; @param[out]     GS       Selector allowing flat access to all addresses
+; @param[out]     SS       Selector allowing flat access to all addresses
+;
 TransitionFromReal16To32BitFlat:
 
     debugShowPostCode POSTCODE_16BIT_MODE