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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 <jeff.fan@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>


git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15402 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan 2014-03-27 06:02:54 +00:00 committed by vanjeff
parent 90651f7773
commit 3bf04a71bf
1 changed files with 19 additions and 10 deletions
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29
SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c
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@ -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 @@ SetupDebugAgentEnviroment (
//
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 @@ InitializeDebugAgent (
VerifyMailboxChecksum (Mailbox);
}
//
// Save Mailbox pointer in global variable
//
mMailboxPointer = Mailbox;
//
// Set up IDT table and prepare for IDT entries
//
SetupDebugAgentEnviroment (Mailbox);