From 8f07f895fb03800e54c23225639116f34d2ce7b1 Mon Sep 17 00:00:00 2001
From: vanjeff <vanjeff@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Thu, 15 Mar 2012 05:24:07 +0000
Subject: Import two CPU Exception Handler Library instances:
 SecPeiCpuExceptionHandler.inf and DxeSmmCpuExceptionHandler.inf.

Signed-off-by: vanjeff
Reviewed-by: jyao1


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13098 6f19259b-4bc3-4df7-8a09-765794883524
---
 .../CpuExceptionHandlerLib/DxeSmmCpuException.c    | 84 ++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c

(limited to 'UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c')

diff --git a/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c b/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c
new file mode 100644
index 0000000000..3110687284
--- /dev/null
+++ b/UefiCpuPkg/Library/CpuExceptionHandlerLib/DxeSmmCpuException.c
@@ -0,0 +1,84 @@
+/** @file
+  CPU Exception Library provides DXE/SMM CPU exception handler.
+
+Copyright (c) 2012, 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 that accompanies this distribution.
+The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php.
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <PiDxe.h>
+
+#include "CpuExceptionCommon.h"
+#include <Library/SynchronizationLib.h>
+
+//
+// Spinlock for CPU information display
+//
+SPIN_LOCK        mDisplayMessageSpinLock;
+
+//
+// Image align size for DXE/SMM
+//
+CONST UINTN      mImageAlignSize = SIZE_4KB;
+
+/**
+  Common exception handler.
+
+  @param ExceptionType  Exception type.
+  @param SystemContext  Pointer to EFI_SYSTEM_CONTEXT.
+**/
+VOID
+EFIAPI
+CommonExceptionHandler (
+  IN EFI_EXCEPTION_TYPE   ExceptionType, 
+  IN EFI_SYSTEM_CONTEXT   SystemContext
+  )
+{
+  //
+  // Get Spinlock to display CPU information
+  //
+  while (!AcquireSpinLockOrFail (&mDisplayMessageSpinLock)) {
+    CpuPause ();
+  }
+
+  //
+  // Display ExceptionType, CPU information and Image information
+  //
+  DumpCpuContent (ExceptionType, SystemContext);
+
+  //
+  // Release Spinlock
+  //
+  ReleaseSpinLock (&mDisplayMessageSpinLock);
+
+  //
+  // Enter a dead loop.
+  //
+  CpuDeadLoop ();
+}
+
+/**
+  Setup CPU exception handlers.
+
+  This API will setups the CPU exception handler to display CPU contents and run into
+  CpuDeadLoop(). 
+  @Note: Before invoking this API, caller must allocate memory for IDT table and load 
+         IDTR by AsmWriteIdtr().
+  
+**/
+VOID
+EFIAPI
+SetupCpuExceptionHandlers (
+  IN VOID
+  )
+{
+  InitializeSpinLock (&mDisplayMessageSpinLock);
+  InternalSetupCpuExceptionHandlers ();
+}
+
-- 
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