Revision: 15402
http://sourceforge.net/p/edk2/code/15402
Author: vanjeff
Date: 2014-03-27 06:02:54 +0000 (Thu, 27 Mar 2014)
Log Message:
-----------
Not to copy mailbox into new space when debug agent initialization for S3 Boot
Script.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <[email protected]>
Reviewed-by: Ruiyu Ni <[email protected]>
Modified Paths:
--------------
trunk/edk2/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c
Modified:
trunk/edk2/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c
===================================================================
---
trunk/edk2/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c
2014-03-27 05:11:02 UTC (rev 15401)
+++
trunk/edk2/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c
2014-03-27 06:02:54 UTC (rev 15402)
@@ -1,7 +1,7 @@
/** @file
Debug Agent library implementition for Dxe Core and Dxr modules.
- Copyright (c) 2010 - 2013, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -283,16 +283,21 @@
//
InitializeDebugIdt ();
- if (Mailbox != NULL) {
- //
- // If Mailbox exists, copy it into one global variable,
- //
- CopyMem (&mMailbox, Mailbox, sizeof (DEBUG_AGENT_MAILBOX));
- } else {
- ZeroMem (&mMailbox, sizeof (DEBUG_AGENT_MAILBOX));
- }
+ //
+ // If mMailboxPointer is not set before, set it
+ //
+ if (mMailboxPointer == NULL) {
+ if (Mailbox != NULL) {
+ //
+ // If Mailbox exists, copy it into one global variable
+ //
+ CopyMem (&mMailbox, Mailbox, sizeof (DEBUG_AGENT_MAILBOX));
+ } else {
+ ZeroMem (&mMailbox, sizeof (DEBUG_AGENT_MAILBOX));
+ }
+ mMailboxPointer = &mMailbox;
+ }
- mMailboxPointer = &mMailbox;
//
// Initialize debug communication port
//
@@ -521,6 +526,10 @@
VerifyMailboxChecksum (Mailbox);
}
//
+ // Save Mailbox pointer in global variable
+ //
+ mMailboxPointer = Mailbox;
+ //
// Set up IDT table and prepare for IDT entries
//
SetupDebugAgentEnviroment (Mailbox);
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