Since in OVMF both PEI_CORE and PEIM run from RAM, and thus may utilize global variables, use the "Base" AcpiTimerLib instance (instead of BaseRom) to take advantage of the improved efficiency of storing the timer register IO address in a global variable. This leaves only SEC using the BaseRomAcpiTimerLib instance. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Gabriel Somlo <somlo@cmu.edu> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16377 6f19259b-4bc3-4df7-8a09-765794883524
40 lines
1.0 KiB
INI
40 lines
1.0 KiB
INI
## @file
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# BaseRom ACPI Timer Library Instance.
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#
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# Copyright (c) 2008 - 2010, Intel Corporation. All rights reserved.
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#
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# This program and the accompanying materials are licensed and made
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# available under the terms and conditions of the BSD License which
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# accompanies this distribution. The full text of the license may
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# be found at http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = BaseRomAcpiTimerLib
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FILE_GUID = CDD9D74F-213E-4c28-98F7-8B4A167DB936
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = TimerLib|SEC
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CONSTRUCTOR = AcpiTimerLibConstructor
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[Sources]
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AcpiTimerLib.c
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BaseRomAcpiTimerLib.c
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[Packages]
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MdePkg/MdePkg.dec
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OvmfPkg/OvmfPkg.dec
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[Pcd]
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gUefiOvmfPkgTokenSpaceGuid.PcdAcpiPmBaseAddress
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[LibraryClasses]
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BaseLib
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PciLib
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IoLib
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