## @file # Provides SMM variable service. # # This module installs SMM variable protocol into SMM protocol database, # which can be used by SMM driver, and installs SMM variable protocol # into BS protocol database, which can be used to notify the SMM Runtime # Dxe driver that the SMM variable service is ready. # This module should be used with SMM Runtime DXE module together. The # SMM Runtime DXE module would install variable arch protocol and variable # write arch protocol based on SMM variable module. # # Caution: This module requires additional review when modified. # This driver will have external input - variable data and communicate buffer in SMM mode. # This external input must be validated carefully to avoid security issues such as # buffer overflow or integer overflow. # The whole SMM authentication variable design relies on the integrity of flash part and SMM. # which is assumed to be protected by platform. All variable code and metadata in flash/SMM Memory # may not be modified without authorization. If platform fails to protect these resources, # the authentication service provided in this driver will be broken, and the behavior is undefined. # # Copyright (c) 2010 - 2016, Intel Corporation. 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 = VariableSmm MODULE_UNI_FILE = VariableSmm.uni FILE_GUID = 23A089B3-EED5-4ac5-B2AB-43E3298C2343 MODULE_TYPE = DXE_SMM_DRIVER VERSION_STRING = 1.0 PI_SPECIFICATION_VERSION = 0x0001000A ENTRY_POINT = VariableServiceInitialize # # The following information is for reference only and not required by the build tools. # # VALID_ARCHITECTURES = IA32 X64 # [Sources] Reclaim.c Variable.c VariableSmm.c VarCheck.c Variable.h PrivilegePolymorphic.h VariableExLib.c TcgMorLockSmm.c [Packages] MdePkg/MdePkg.dec MdeModulePkg/MdeModulePkg.dec [LibraryClasses] UefiDriverEntryPoint MemoryAllocationLib BaseLib SynchronizationLib UefiLib SmmServicesTableLib BaseMemoryLib DebugLib DxeServicesTableLib HobLib PcdLib SmmMemLib AuthVariableLib VarCheckLib UefiBootServicesTableLib [Protocols] gEfiSmmFirmwareVolumeBlockProtocolGuid ## CONSUMES ## CONSUMES ## NOTIFY gEfiSmmFaultTolerantWriteProtocolGuid ## PRODUCES ## UNDEFINED # SmiHandlerRegister gEfiSmmVariableProtocolGuid gEfiSmmEndOfDxeProtocolGuid ## NOTIFY gEdkiiSmmVarCheckProtocolGuid ## PRODUCES gEfiTcgProtocolGuid ## SOMETIMES_CONSUMES gEfiTcg2ProtocolGuid ## SOMETIMES_CONSUMES [Guids] ## SOMETIMES_CONSUMES ## GUID # Signature of Variable store header ## SOMETIMES_PRODUCES ## GUID # Signature of Variable store header ## SOMETIMES_CONSUMES ## HOB ## SOMETIMES_PRODUCES ## SystemTable gEfiAuthenticatedVariableGuid ## SOMETIMES_CONSUMES ## GUID # Signature of Variable store header ## SOMETIMES_PRODUCES ## GUID # Signature of Variable store header ## SOMETIMES_CONSUMES ## HOB ## SOMETIMES_PRODUCES ## SystemTable gEfiVariableGuid ## SOMETIMES_CONSUMES ## Variable:L"PlatformLang" ## SOMETIMES_PRODUCES ## Variable:L"PlatformLang" ## SOMETIMES_CONSUMES ## Variable:L"Lang" ## SOMETIMES_PRODUCES ## Variable:L"Lang" gEfiGlobalVariableGuid gEfiMemoryOverwriteControlDataGuid ## SOMETIMES_CONSUMES ## Variable:L"MemoryOverwriteRequestControl" gEfiMemoryOverwriteRequestControlLockGuid ## SOMETIMES_PRODUCES ## Variable:L"MemoryOverwriteRequestControlLock" gSmmVariableWriteGuid ## PRODUCES ## GUID # Install protocol gEfiSystemNvDataFvGuid ## CONSUMES ## GUID gEdkiiFaultTolerantWriteGuid ## SOMETIMES_CONSUMES ## HOB ## SOMETIMES_CONSUMES ## Variable:L"VarErrorFlag" ## SOMETIMES_PRODUCES ## Variable:L"VarErrorFlag" gEdkiiVarErrorFlagGuid [Pcd] gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase ## SOMETIMES_CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64 ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVariableSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdMaxAuthVariableSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdMaxVolatileVariableSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdMaxHardwareErrorVariableSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdVariableStoreSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdHwErrStorageSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdMaxUserNvVariableSpaceSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdBoottimeReservedNvVariableSpaceSize ## CONSUMES gEfiMdeModulePkgTokenSpaceGuid.PcdReclaimVariableSpaceAtEndOfDxe ## CONSUMES [FeaturePcd] gEfiMdeModulePkgTokenSpaceGuid.PcdVariableCollectStatistics ## CONSUMES # statistic the information of variable. gEfiMdePkgTokenSpaceGuid.PcdUefiVariableDefaultLangDeprecate ## CONSUMES # Auto update PlatformLang/Lang [Depex] TRUE [UserExtensions.TianoCore."ExtraFiles"] VariableSmmExtra.uni