ArmPlatformPkg: Introduce ArmPlatformGlobalVariableLib

This library hides where the 'XIP' Global Variable are located in the memory.
It is expected the Sec/PrePi modules define the Global Variable area through
the GlobalVariable HOB.

The ArmPlatformGlobalVariableLib library allows access to global variables by
their offsets in this region.




git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12420 6f19259b-4bc3-4df7-8a09-765794883524

ArmPlatformPkg/Library/ArmPlatformGlobalVariableLib/PrePi/PrePiArmPlatformGlobalVariableLib.inf

@@ -0,0 +1,46 @@
+#/** @file
+# Timer library implementation
+#  
+#  
+#  Copyright (c) 2011, ARM Ltd. All rights reserved.<BR>
+#  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                      = PrePiArmPlatformGlobalVariableLib
+  FILE_GUID                      = 44d59470-e5e6-4811-af00-33bb573a804b 
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = ArmPlatformGlobalVariableLib
+
+[Sources.common]
+  PrePiArmPlatformGlobalVariableLib.c
+
+[Packages]
+  MdePkg/MdePkg.dec
+  ArmPlatformPkg/ArmPlatformPkg.dec
+  ArmPkg/ArmPkg.dec
+
+[LibraryClasses]
+  BaseLib
+  PcdLib
+
+[FixedPcd]
+  gArmTokenSpaceGuid.PcdFdBaseAddress
+  gArmTokenSpaceGuid.PcdFdSize
+
+  gArmTokenSpaceGuid.PcdSystemMemoryBase
+  gArmTokenSpaceGuid.PcdSystemMemorySize
+
+  gArmPlatformTokenSpaceGuid.PcdCPUCoresStackBase
+  gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize
+  gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize
+