1. Use Mde library for Debug Port Module

[mirror_edk2.git] / MdeModulePkg / Universal / DebugSupportDxe / X64 / PlDebugSupportX64.c

diff --git a/MdeModulePkg/Universal/DebugSupportDxe/X64/PlDebugSupportX64.c b/MdeModulePkg/Universal/DebugSupportDxe/X64/PlDebugSupportX64.c
index e898d822719adb133fbf2802b08450b102595928..1a0aeb19015e9a48e41432223c643fba66e1b0ec 100644 (file)
--- a/MdeModulePkg/Universal/DebugSupportDxe/X64/PlDebugSupportX64.c
+++ b/MdeModulePkg/Universal/DebugSupportDxe/X64/PlDebugSupportX64.c
@@ -1,7 +1,7 @@
 /** @file\r
-  X64 specific debug support functions\r
+  X64 specific functions to support Debug Support protocol.\r
 \r
-Copyright (c) 2006 - 2007, Intel Corporation\r
+Copyright (c) 2008, Intel Corporation\r
 All rights reserved. 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
@@ -12,7 +12,9 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
 \r
 **/\r
 \r
-#include "DebugSupport.h"\r
+#include "PlDebugSupport.h"\r
+\r
+IA32_IDT_GATE_DESCRIPTOR  NullDesc = {{0,0}};\r
 \r
 /**\r
   Get Interrupt Handle from IDT Gate Descriptor.\r
@@ -28,7 +30,12 @@ GetInterruptHandleFromIdt (
   )\r
 {\r
   UINTN      InterruptHandle;\r
- \r
+\r
+  //\r
+  // InterruptHandle  0-15 : OffsetLow\r
+  // InterruptHandle 16-31 : OffsetHigh\r
+  // InterruptHandle 32-63 : OffsetUpper\r
+  //\r
   ((UINT16 *) &InterruptHandle)[0] = (UINT16) IdtGateDecriptor->Bits.OffsetLow;\r
   ((UINT16 *) &InterruptHandle)[1] = (UINT16) IdtGateDecriptor->Bits.OffsetHigh;\r
   ((UINT32 *) &InterruptHandle)[1] = (UINT32) IdtGateDecriptor->Bits.OffsetUpper;\r
@@ -101,7 +108,7 @@ CreateEntryStub (
 **/\r
 EFI_STATUS\r
 ManageIdtEntryTable (\r
-  VOID (*NewCallback)(),\r
+  VOID               (*NewCallback)(),\r
   EFI_EXCEPTION_TYPE ExceptionType\r
   )\r
 {\r
@@ -134,6 +141,6 @@ ManageIdtEntryTable (
       HookEntry (ExceptionType, NewCallback);\r
     }\r
   }\r
- \r
+\r
   return Status;\r
 }\r