ArmPlatformPkg: Move the Secure Monitor initialization into a separate 'ArmTrustedMonitorLib' library

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13059 6f19259b-4bc3-4df7-8a09-765794883524

ArmPlatformPkg/Library/ArmTrustedMonitorLibNull/ArmTrustedMonitorLibNull.c

@@ -0,0 +1,37 @@
+/** @file
+*  Main file supporting the Monitor World on ARM PLatforms
+*
+*  Copyright (c) 2011, ARM Limited. All rights reserved.
+*
+*  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
+*  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 <Library/ArmLib.h>
+#include <Library/ArmTrustedMonitorLib.h>
+#include <Library/DebugLib.h>
+
+#define IS_ALIGNED(Address, Align) (((UINTN)Address & (Align-1)) == 0)
+
+VOID
+MonitorVectorTable (
+  VOID
+  );
+
+VOID
+ArmSecureMonitorWorldInitialize (
+  VOID
+  )
+{
+  // Ensure the Monitor Table is 32bit aligned
+  ASSERT (IS_ALIGNED(MonitorVectorTable, BIT5));
+
+  // Write the Monitor Mode Vector Table Address
+  ArmWriteVMBar ((UINT32) &MonitorVectorTable);
+}