3 files changed, 249 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmLib/Null/NullArmCacheInformation.c b/ArmPkg/Library/ArmLib/Null/NullArmCacheInformation.c
new file mode 100644
index 0000000000..08a1ad0c5f
--- /dev/null
+++ b/ArmPkg/Library/ArmLib/Null/NullArmCacheInformation.c
@@ -0,0 +1,106 @@
+/** @file
+
+  Copyright (c) 2008-2009, Apple Inc. All rights reserved.
+  
+  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 "ArmLibPrivate.h"
+
+ARM_CACHE_TYPE
+EFIAPI
+ArmCacheType (
+  VOID
+  )
+{
+  return ARM_CACHE_TYPE_UNKNOWN;
+}
+
+ARM_CACHE_ARCHITECTURE
+EFIAPI
+ArmCacheArchitecture (
+  VOID
+  )
+{
+  return ARM_CACHE_ARCHITECTURE_UNKNOWN;
+}
+
+BOOLEAN
+EFIAPI
+ArmDataCachePresent (
+  VOID
+  )
+{
+  return FALSE;
+}
+  
+UINTN
+EFIAPI
+ArmDataCacheSize (
+  VOID
+  )
+{
+  return 0;      
+}
+  
+UINTN
+EFIAPI
+ArmDataCacheAssociativity (
+  VOID
+  )
+{
+  return 0;
+}
+  
+UINTN
+EFIAPI
+ArmDataCacheLineLength (
+  VOID
+  )
+{
+  return 0;
+}
+  
+BOOLEAN
+EFIAPI
+ArmInstructionCachePresent (
+  VOID
+  )
+{
+  return FALSE;
+}
+  
+UINTN
+EFIAPI
+ArmInstructionCacheSize (
+  VOID
+  )
+{
+  return 0;      
+}
+  
+UINTN
+EFIAPI
+ArmInstructionCacheAssociativity (
+  VOID
+  )
+{
+  return 0;
+}
+  
+UINTN
+EFIAPI
+ArmInstructionCacheLineLength (
+  VOID
+  )
+{
+  return 0;
+}
diff --git a/ArmPkg/Library/ArmLib/Null/NullArmLib.c b/ArmPkg/Library/ArmLib/Null/NullArmLib.c
new file mode 100644
index 0000000000..6e95cba706
--- /dev/null
+++ b/ArmPkg/Library/ArmLib/Null/NullArmLib.c
@@ -0,0 +1,117 @@
+/** @file
+
+  Copyright (c) 2008-2009, Apple Inc. All rights reserved.
+  
+  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 <Uefi.h>
+#include <Library/ArmLib.h>
+#include <Library/DebugLib.h>
+
+VOID
+EFIAPI
+ArmCleanInvalidateDataCache (
+  VOID
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmCleanDataCache (
+  VOID
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmInvalidateInstructionCache (
+  VOID
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmInvalidateDataCacheEntryByMVA (
+  IN  UINTN Address
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmCleanDataCacheEntryByMVA (
+  IN  UINTN Address
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmCleanInvalidateDataCacheEntryByMVA (
+  IN  UINTN Address
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmEnableDataCache (
+  VOID
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmDisableDataCache (
+  VOID
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmEnableInstructionCache (
+  VOID
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
+
+VOID
+EFIAPI
+ArmDisableInstructionCache (
+  VOID
+  )
+{
+  // Do not run code using the Null cache library.
+  ASSERT(FALSE);
+}
diff --git a/ArmPkg/Library/ArmLib/Null/NullArmLib.inf b/ArmPkg/Library/ArmLib/Null/NullArmLib.inf
new file mode 100644
index 0000000000..ff31b9cecb
--- /dev/null
+++ b/ArmPkg/Library/ArmLib/Null/NullArmLib.inf
@@ -0,0 +1,26 @@
+#%HEADER%
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = NullArmLib
+  FILE_GUID                      = 00586300-0E06-4790-AC44-86C56ACBB942
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = ArmLib
+
+[Sources.common]
+  ../Common/ArmLibSupport.S    | GCC
+  ../Common/ArmLibSupport.asm  | RVCT
+  ../Common/ArmLib.c
+
+  NullArmLib.c
+  NullArmCacheInformation.c
+
+[Packages]
+  ArmPkg/ArmPkg.dec
+  MdePkg/MdePkg.dec
+
+[Protocols]
+  gEfiCpuArchProtocolGuid
+
+[FixedPcd]
+  gArmTokenSpaceGuid.PcdArmCacheOperationThreshold