ArmPlatformPkg/Library/ArmTrustedMonitorLibNull/ArmTrustedMonitorLibNull.c

   1 /** @file
   2 *  Main file supporting the Monitor World on ARM PLatforms
   3 *
   4 *  Copyright (c) 2011, ARM Limited. All rights reserved.
   5 *
   6 *  This program and the accompanying materials
   7 *  are licensed and made available under the terms and conditions of the BSD License
   8 *  which accompanies this distribution.  The full text of the license may be found at
   9 *  http://opensource.org/licenses/bsd-license.php
  10 *
  11 *  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 *  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13 *
  14 **/
  15
  16 #include <Library/ArmLib.h>
  17 #include <Library/ArmTrustedMonitorLib.h>
  18 #include <Library/DebugLib.h>
  19
  20 #define IS_ALIGNED(Address, Align) (((UINTN)Address & (Align-1)) == 0)
  21
  22 VOID
  23 MonitorVectorTable (
  24   VOID
  25   );
  26
  27 VOID
  28 ArmSecureMonitorWorldInitialize (
  29   VOID
  30   )
  31 {
  32   // Ensure the Monitor Table is 32bit aligned
  33   ASSERT (IS_ALIGNED(MonitorVectorTable, BIT5));
  34
  35   // Write the Monitor Mode Vector Table Address
  36   ArmWriteVMBar ((UINT32) &MonitorVectorTable);
  37 }