ArmPkg/Library/ArmLib/AArch64/AArch64LibConstructor.c

   1 #/* @file
   2 #
   3 #  Copyright (c) 2016, Linaro Limited. All rights reserved.
   4 #
   5 #  This program and the accompanying materials
   6 #  are licensed and made available under the terms and conditions of the BSD License
   7 #  which accompanies this distribution.  The full text of the license may be found at
   8 #  http://opensource.org/licenses/bsd-license.php
   9 #
  10 #  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 #  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 #
  13 #*/
  14
  15 #include <Base.h>
  16
  17 #include <Library/ArmLib.h>
  18 #include <Library/CacheMaintenanceLib.h>
  19
  20 RETURN_STATUS
  21 EFIAPI
  22 AArch64LibConstructor (
  23   VOID
  24   )
  25 {
  26   extern UINT32 ArmReplaceLiveTranslationEntrySize;
  27
  28   //
  29   // The ArmReplaceLiveTranslationEntry () helper function may be invoked
  30   // with the MMU off so we have to ensure that it gets cleaned to the PoC
  31   //
  32   WriteBackDataCacheRange (ArmReplaceLiveTranslationEntry,
  33     ArmReplaceLiveTranslationEntrySize);
  34
  35   return RETURN_SUCCESS;
  36 }