Ard,
Regards, Jian > -----Original Message----- > From: Ard Biesheuvel [mailto:[email protected]] > Sent: Friday, January 04, 2019 2:28 AM > To: [email protected] > Cc: Ard Biesheuvel <[email protected]>; Laszlo Ersek > <[email protected]>; Leif Lindholm <[email protected]>; Kinney, > Michael D <[email protected]>; Gao, Liming <[email protected]>; > Wang, Jian J <[email protected]>; Wu, Hao A <[email protected]>; > Jagadeesh Ujja <[email protected]>; Achin Gupta > <[email protected]>; Thomas Panakamattam Abraham > <[email protected]>; Sami Mujawar <[email protected]> > Subject: [PATCH 4/6] MdeModulePkg/FaultTolerantWriteDxe: implement > standalone MM version > > Implement a new version of the fault tolerant write driver that can > be used in the context of a standalone MM implementation. > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Ard Biesheuvel <[email protected]> > --- > > MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandalon > eMm.c | 70 +++++++++++++++ > > MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandalon > eMm.inf | 90 ++++++++++++++++++++ > 2 files changed, 160 insertions(+) > > diff --git > a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandal > oneMm.c > b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandal > oneMm.c > new file mode 100644 > index 000000000000..b6fbf6c64f8a > --- /dev/null > +++ > b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandal > oneMm.c > @@ -0,0 +1,70 @@ > +/** @file > + > + Parts of the SMM/MM implementation that are specific to standalone MM > + > +Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR> > +Copyright (c) 2018, Linaro, 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. > + > +**/ > + > +#include <Library/SmmMemLib.h> > +#include <Library/UefiBootServicesTableLib.h> > +#include "FaultTolerantWrite.h" > +#include "FaultTolerantWriteSmmCommon.h" > + > +BOOLEAN > +FtwSmmIsBufferOutsideSmmValid ( > + IN EFI_PHYSICAL_ADDRESS Buffer, > + IN UINT64 Length > + ) > +{ > + return TRUE; > +} > + > +/** > + Internal implementation of CRC32. Depending on the execution context > + (standalone SMM or DXE vs standalone MM), this function is implemented > + via a call to the CalculateCrc32 () boot service, or via a library > + call. > + > + If Buffer is NULL, then ASSERT(). > + If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT(). > + > + @param[in] Buffer A pointer to the buffer on which the 32-bit CRC > is to be > computed. > + @param[in] Length The number of bytes in the buffer Data. > + > + @retval Crc32 The 32-bit CRC was computed for the data buffer. > + > +**/ > +UINT32 > +FtwCalculateCrc32 ( > + IN VOID *Buffer, > + IN UINTN Length > + ) > +{ > + return CalculateCrc32 (Buffer, Length); > +} > + > +VOID > +FtwNotifySmmReady ( > + VOID > + ) > +{ > +} > + > +EFI_STATUS > +EFIAPI > +StandaloneMmFaultTolerantWriteInitialize ( > + IN EFI_HANDLE ImageHandle, > + IN EFI_MM_SYSTEM_TABLE *MmSystemTable > + ) > +{ > + return MmFaultTolerantWriteInitialize (); > +} > diff --git > a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandal > oneMm.inf > b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandal > oneMm.inf > new file mode 100644 > index 000000000000..99bd62ad5ceb > --- /dev/null > +++ > b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandal > oneMm.inf > @@ -0,0 +1,90 @@ > + ## @file > +# Fault Tolerant Write Smm Driver. > +# > +# This driver installs SMM Fault Tolerant Write (FTW) protocol, which > provides > fault > +# tolerant write capability in SMM environment for block devices. Its > implementation > +# depends on the full functionality SMM FVB protocol that support read, > write/erase > +# flash access. > +# > +# Copyright (c) 2010 - 2018, Intel Corporation. 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 = 0x0001001A > + BASE_NAME = FaultTolerantWriteStandaloneMm > + FILE_GUID = 3aade4ec-63cc-4a48-a928-5a374dd463eb > + MODULE_TYPE = MM_STANDALONE > + VERSION_STRING = 1.0 > + PI_SPECIFICATION_VERSION = 0x00010032 > + ENTRY_POINT = StandaloneMmFaultTolerantWriteInitialize > + > +# > +# The following information is for reference only and not required by the > build > tools. > +# > +# VALID_ARCHITECTURES = AARCH64 > +# > + > +[Sources] > + FtwMisc.c > + UpdateWorkingBlock.c > + FaultTolerantWrite.c > + FaultTolerantWriteStandaloneMm.c > + FaultTolerantWriteSmm.c > + FaultTolerantWrite.h > + FaultTolerantWriteSmmCommon.h > + > +[Packages] > + MdePkg/MdePkg.dec > + MdeModulePkg/MdeModulePkg.dec > + StandaloneMmPkg/StandaloneMmPkg.dec > + > +[LibraryClasses] > + BaseLib > + BaseMemoryLib > + DebugLib > + MemoryAllocationLib > + MmServicesTableLib > + PcdLib > + ReportStatusCodeLib > + StandaloneMmDriverEntryPoint > + > +[Guids] > + # > + # Signature in EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER > + # > + ## CONSUMES ## GUID > + ## PRODUCES ## GUID > + gEdkiiWorkingBlockSignatureGuid > + > +[Protocols] > + gEfiSmmSwapAddressRangeProtocolGuid | > gEfiMdeModulePkgTokenSpaceGuid.PcdFullFtwServiceEnable ## > SOMETIMES_CONSUMES > + ## NOTIFY > + ## CONSUMES > + gEfiSmmFirmwareVolumeBlockProtocolGuid > + ## PRODUCES > + ## UNDEFINED # SmiHandlerRegister > + gEfiSmmFaultTolerantWriteProtocolGuid CONSUMES/PRODUCES is normally put in trailing comment. > + gEfiMmEndOfDxeProtocolGuid ## CONSUMES > + > +[FeaturePcd] > + gEfiMdeModulePkgTokenSpaceGuid.PcdFullFtwServiceEnable ## > CONSUMES > + > +[Pcd] > + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase ## > SOMETIMES_CONSUMES > + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase64 > ## CONSUMES > + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingSize ## > CONSUMES > + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase ## > SOMETIMES_CONSUMES > + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareBase64 ## > CONSUMES > + gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize ## > CONSUMES > + > +[Depex] > + TRUE > + > -- > 2.17.1 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
