ArmPkg: introduce base ArmMmuLib implementation

This base library encapsulates the MMU manipulation routines that have been
factored out of ArmLib. The functionality covers initial creation of the 1:1
mapping in the page tables, and remapping regions to change permissions or
cacheability attributes.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>

ArmPkg/Library/ArmMmuLib/ArmMmuBaseLib.inf

@@ -0,0 +1,43 @@
+#/** @file
+#
+#  Copyright (c) 2016 Linaro Ltd. 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.
+#
+#
+#**/
+
+[Defines]
+  INF_VERSION                    = 0x00010005
+  BASE_NAME                      = ArmMmuBaseLib
+  FILE_GUID                      = da8f0232-fb14-42f0-922c-63104d2c70bd
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = ArmMmuLib
+  CONSTRUCTOR                    = ArmMmuBaseLibConstructor
+
+[Sources.AARCH64]
+  AArch64/ArmMmuLibCore.c
+  AArch64/ArmMmuLibReplaceEntry.S
+
+[Sources.ARM]
+  Arm/ArmMmuLibCore.c
+  Arm/ArmMmuLibV7Support.S   |GCC 
+  Arm/ArmMmuLibV7Support.asm |RVCT 
+
+[Packages]
+  ArmPkg/ArmPkg.dec
+  MdePkg/MdePkg.dec
+
+[LibraryClasses]
+  ArmLib
+  CacheMaintenanceLib
+  MemoryAllocationLib
+
+[Pcd.ARM]
+  gArmTokenSpaceGuid.PcdNormalMemoryNonshareableOverride