MdeModulePkg/Library/VarCheckPolicyLib/VarCheckPolicyLibStandaloneMm.c

   1 /** @file -- VarCheckPolicyLibStandaloneMm.c
   2 This is an instance of a VarCheck lib constructor for Standalone MM.
   3
   4 Copyright (c) Microsoft Corporation. All rights reserved.
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include <Library/StandaloneMmMemLib.h>
  10
  11 #include "VarCheckPolicyLib.h"
  12
  13 /**
  14   Standalone MM constructor function of VarCheckPolicyLib to invoke common
  15   constructor routine.
  16
  17   @param[in] ImageHandle    The firmware allocated handle for the EFI image.
  18   @param[in] SystemTable    A pointer to the EFI System Table.
  19
  20   @retval EFI_SUCCESS       The constructor executed correctly.
  21
  22 **/
  23 EFI_STATUS
  24 EFIAPI
  25 VarCheckPolicyLibStandaloneConstructor (
  26   IN EFI_HANDLE             ImageHandle,
  27   IN EFI_MM_SYSTEM_TABLE    *SystemTable
  28   )
  29 {
  30   return VarCheckPolicyLibCommonConstructor ();
  31 }
  32
  33 /**
  34   This function is wrapper function to validate the buffer.
  35
  36   @param Buffer  The buffer start address to be checked.
  37   @param Length  The buffer length to be checked.
  38
  39   @retval TRUE  This buffer is valid per processor architectureand not overlap with MMRAM.
  40   @retval FALSE This buffer is not valid per processor architecture or overlap with MMRAM.
  41 **/
  42 BOOLEAN
  43 EFIAPI
  44 VarCheckPolicyIsBufferOutsideValid (
  45   IN EFI_PHYSICAL_ADDRESS  Buffer,
  46   IN UINT64                Length
  47   )
  48 {
  49   return MmIsBufferOutsideMmValid (Buffer, Length);
  50 }