eric_tian 841014ba97 refine VariablePei driver to unify the algorithm of access VariableIndexTable among various archs.
1. record the distance of two neighboring VAR_ADDED type variables rather than the offset of each variable. As the field recording this info is UINT16 width, the latter causes in IA32/X64 platform, it can only cache those variables from offset 0 to offset 2^16; in IPF platform, from offset 0 to offset 2^18(extend the scope by left-shift the offset two bits).
when taking the former algorithm, the max range of caching variable is from offset 0 to offset 122*(2^16)

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8625 6f19259b-4bc3-4df7-8a09-765794883524
2009-06-23 08:30:04 +00:00

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1.7 KiB
INI

#/** @file
#
# Implement ReadOnly Variable Services required by PEIM and install
# PEI ReadOnly Varaiable2 PPI. These services operates the non-volatile storage space.
#
# Copyright (c) 2006 - 2008, Intel Corporation<BR>
# 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 = PeiVariable
FILE_GUID = 34C8C28F-B61C-45a2-8F2E-89E46BECC63B
MODULE_TYPE = PEIM
VERSION_STRING = 1.0
ENTRY_POINT = PeimInitializeVariableServices
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources.common]
Variable.c
Variable.h
[Packages]
MdePkg/MdePkg.dec
MdeModulePkg/MdeModulePkg.dec
[LibraryClasses]
BaseMemoryLib
PcdLib
HobLib
PeimEntryPoint
DebugLib
PeiServicesTablePointerLib
PeiServicesLib
[Guids]
gEfiVariableGuid
[Ppis]
gEfiPeiReadOnlyVariable2PpiGuid ## SOMETIMES_PRODUCES (Not for boot mode RECOVERY)
[Pcd.common]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase ## CONSUMES
[Depex]
TRUE
#
# [BootMode]
# RECOVERY ## CONSUMES
#