IntelSiliconPkg/Vtd: Add more debug info.

[mirror_edk2.git] / IntelSiliconPkg / Feature / VTd / IntelVTdDxe / VtdReg.c

diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/VtdReg.c b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/VtdReg.c
index 1404af7cd7817fb4163b9eb01e7ad2df66631d87..8dbc83fa2d6764654209d820f4a98ab9e9c90785 100644 (file)
--- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/VtdReg.c
+++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/VtdReg.c
@@ -1,6 +1,6 @@
 /** @file\r
 \r
-  Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\r
+  Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>\r
   This program and the accompanying materials\r
   are licensed and made available under the terms and conditions of the BSD License\r
   which accompanies this distribution.  The full text of the license may be found at\r
@@ -13,7 +13,6 @@
 \r
 #include "DmaProtection.h"\r
 \r
-UINT64                           mVtdHostAddressWidthMask;\r
 UINTN                            mVtdUnitNumber;\r
 VTD_UNIT_INFORMATION             *mVtdUnitInformation;\r
 \r
@@ -482,7 +481,7 @@ DumpVtdRegs (
       SourceId.Uint16 = (UINT16)FrcdReg.Bits.SID;\r
       DEBUG((DEBUG_INFO, "    Source - B%02x D%02x F%02x\n", SourceId.Bits.Bus, SourceId.Bits.Device, SourceId.Bits.Function));\r
       DEBUG((DEBUG_INFO, "    Type - %x (%a)\n", FrcdReg.Bits.T, FrcdReg.Bits.T ? "read" : "write"));\r
-      DEBUG((DEBUG_INFO, "    Reason - %x\n", FrcdReg.Bits.FR));\r
+      DEBUG((DEBUG_INFO, "    Reason - %x (Refer to VTd Spec, Appendix A)\n", FrcdReg.Bits.FR));\r
     }\r
   }\r
 \r