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From: "Zeng, Star" <star.zeng@intel.com>
To: Ard Biesheuvel <ard.biesheuvel@linaro.org>, edk2-devel@lists.01.org
Cc: Hao Wu <hao.a.wu@intel.com>, Liming Gao <liming.gao@intel.com>,
	Michael D Kinney <michael.d.kinney@intel.com>,
	Laszlo Ersek <lersek@redhat.com>,
	star.zeng@intel.com
Subject: Re: [PATCH 3/6] MdeModulePkg/FaultTolerantWriteDxe: factor out boot service accesses
Date: Thu, 10 Jan 2019 14:45:29 +0800	[thread overview]
Message-ID: <36a4628a-4c6f-0361-ef68-7a2ba2d46586@intel.com> (raw)
In-Reply-To: <20190103182825.32231-5-ard.biesheuvel@linaro.org>

Hi Ard,

Some minor feedback added inline.

On 2019/1/4 2:28, Ard Biesheuvel wrote:
> In preparation of providing a standalone MM based FTW driver, move
> the existing SMM driver to the new MM services table, and factor out
> some pieces that are specific to the traditional driver, mainly
> related to the use of UEFI boot services, which are not accessible
> to standalone MM drivers.
> 
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
> ---
>   MdeModulePkg/MdeModulePkg.dsc                                                  |  1 +
>   MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h              | 22 ++++-
>   MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.c           | 31 +++++++
>   MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c           | 54 +++++------
>   MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.inf         |  5 +-
>   MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmCommon.h     | 31 +++++++
>   MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmDxe.c        |  1 +
>   MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteTraditionalMm.c | 94 ++++++++++++++++++++
>   MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c              | 10 +--
>   9 files changed, 205 insertions(+), 44 deletions(-)
> 
> diff --git a/MdeModulePkg/MdeModulePkg.dsc b/MdeModulePkg/MdeModulePkg.dsc
> index 5d042be3a862..ef3c144ed524 100644
> --- a/MdeModulePkg/MdeModulePkg.dsc
> +++ b/MdeModulePkg/MdeModulePkg.dsc
> @@ -153,6 +153,7 @@ [LibraryClasses.common.DXE_SMM_DRIVER]
>     DebugLib|MdePkg/Library/UefiDebugLibConOut/UefiDebugLibConOut.inf
>     MemoryAllocationLib|MdePkg/Library/SmmMemoryAllocationLib/SmmMemoryAllocationLib.inf
>     SmmServicesTableLib|MdePkg/Library/SmmServicesTableLib/SmmServicesTableLib.inf
> +  MmServicesTableLib|MdePkg/Library/MmServicesTableLib/MmServicesTableLib.inf
>     LockBoxLib|MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxSmmLib.inf
>     SmmMemLib|MdePkg/Library/SmmMemLib/SmmMemLib.inf
>   
> diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h
> index 844cf3bee04d..8d146264b129 100644
> --- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h
> +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWrite.h
> @@ -31,7 +31,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
>   #include <Library/UefiDriverEntryPoint.h>
>   #include <Library/BaseMemoryLib.h>
>   #include <Library/MemoryAllocationLib.h>
> -#include <Library/UefiBootServicesTableLib.h>
>   #include <Library/ReportStatusCodeLib.h>
>   
>   //
> @@ -766,4 +765,25 @@ WriteWorkSpaceData (
>     IN UINT8                              *Buffer
>     );
>   
> +/**
> +  Internal implementation of CRC32. Depending on the execution context
> +  (traditional 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
> +  );
> +
>   #endif
> diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.c b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.c
> index 094e40f9d86c..24e507104bbe 100644
> --- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.c
> +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.c
> @@ -51,6 +51,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
>   
>   **/
>   
> +#include <Library/UefiBootServicesTableLib.h>
>   #include "FaultTolerantWrite.h"
>   EFI_EVENT                                 mFvbRegistration = NULL;
>   
> @@ -250,3 +251,33 @@ FaultTolerantWriteInitialize (
>   
>     return EFI_SUCCESS;
>   }
> +
> +/**
> +  Internal implementation of CRC32. Depending on the execution context
> +  (traditional 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
> +  )
> +{
> +  EFI_STATUS    Status;
> +  UINT32        ReturnValue;
> +
> +  Status = gBS->CalculateCrc32 (Buffer, Length, &ReturnValue);
> +  ASSERT_EFI_ERROR (Status);
> +
> +  return ReturnValue;
> +}
> diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c
> index 481fea3f1fdf..e91d04e56d7c 100644
> --- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c
> +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.c
> @@ -54,14 +54,13 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
>   
>   **/
>   
> -#include <PiSmm.h>
> -#include <Library/SmmServicesTableLib.h>
> -#include <Library/SmmMemLib.h>
> +#include <PiMm.h>
> +#include <Library/MmServicesTableLib.h>
>   #include <Library/BaseLib.h>
>   #include <Protocol/SmmSwapAddressRange.h>
>   #include "FaultTolerantWrite.h"
>   #include "FaultTolerantWriteSmmCommon.h"
> -#include <Protocol/SmmEndOfDxe.h>
> +#include <Protocol/MmEndOfDxe.h>
>   
>   EFI_EVENT                                 mFvbRegistration = NULL;
>   EFI_FTW_DEVICE                            *mFtwDevice      = NULL;
> @@ -92,7 +91,7 @@ FtwGetFvbByHandle (
>     //
>     // To get the SMM FVB protocol interface on the handle
>     //
> -  return gSmst->SmmHandleProtocol (
> +  return gMmst->MmHandleProtocol (
>                     FvBlockHandle,
>                     &gEfiSmmFirmwareVolumeBlockProtocolGuid,
>                     (VOID **) FvBlock
> @@ -119,7 +118,7 @@ FtwGetSarProtocol (
>     //
>     // Locate Smm Swap Address Range protocol
>     //
> -  Status = gSmst->SmmLocateProtocol (
> +  Status = gMmst->MmLocateProtocol (
>                       &gEfiSmmSwapAddressRangeProtocolGuid,
>                       NULL,
>                       SarProtocol
> @@ -158,7 +157,7 @@ GetFvbCountAndBuffer (
>     BufferSize     = 0;
>     *NumberHandles = 0;
>     *Buffer        = NULL;
> -  Status = gSmst->SmmLocateHandle (
> +  Status = gMmst->MmLocateHandle (
>                       ByProtocol,
>                       &gEfiSmmFirmwareVolumeBlockProtocolGuid,
>                       NULL,
> @@ -174,7 +173,7 @@ GetFvbCountAndBuffer (
>       return EFI_OUT_OF_RESOURCES;
>     }
>   
> -  Status = gSmst->SmmLocateHandle (
> +  Status = gMmst->MmLocateHandle (
>                       ByProtocol,
>                       &gEfiSmmFirmwareVolumeBlockProtocolGuid,
>                       NULL,
> @@ -336,8 +335,7 @@ SmmFaultTolerantWriteHandler (
>     }
>     CommBufferPayloadSize = TempCommBufferSize - SMM_FTW_COMMUNICATE_HEADER_SIZE;
>   
> -  if (!SmmIsBufferOutsideSmmValid ((UINTN)CommBuffer, TempCommBufferSize)) {
> -    DEBUG ((EFI_D_ERROR, "SmmFtwHandler: SMM communication buffer in SMRAM or overflow!\n"));

How about keeping the debug message printing code here (but not be in 
FtwSmmIsBufferOutsideSmmValid) to align the change for variable drivers?

> +  if (!FtwSmmIsBufferOutsideSmmValid ((UINTN)CommBuffer, TempCommBufferSize)) {
>       return EFI_SUCCESS;
>     }
>   
> @@ -525,13 +523,12 @@ FvbNotificationEvent (
>     EFI_STATUS                              Status;
>     EFI_SMM_FAULT_TOLERANT_WRITE_PROTOCOL   *FtwProtocol;
>     EFI_HANDLE                              SmmFtwHandle;
> -  EFI_HANDLE                              FtwHandle;
>   
>     //
>     // Just return to avoid install SMM FaultTolerantWriteProtocol again
>     // if SMM Fault Tolerant Write protocol had been installed.
>     //
> -  Status = gSmst->SmmLocateProtocol (
> +  Status = gMmst->MmLocateProtocol (
>                       &gEfiSmmFaultTolerantWriteProtocolGuid,
>                       NULL,
>                       (VOID **) &FtwProtocol
> @@ -551,7 +548,7 @@ FvbNotificationEvent (
>     //
>     // Install protocol interface
>     //
> -  Status = gSmst->SmmInstallProtocolInterface (
> +  Status = gMmst->MmInstallProtocolInterface (
>                       &mFtwDevice->Handle,
>                       &gEfiSmmFaultTolerantWriteProtocolGuid,
>                       EFI_NATIVE_INTERFACE,
> @@ -562,20 +559,13 @@ FvbNotificationEvent (
>     ///
>     /// Register SMM FTW SMI handler
>     ///
> -  Status = gSmst->SmiHandlerRegister (SmmFaultTolerantWriteHandler, &gEfiSmmFaultTolerantWriteProtocolGuid, &SmmFtwHandle);
> +  Status = gMmst->MmiHandlerRegister (SmmFaultTolerantWriteHandler, &gEfiSmmFaultTolerantWriteProtocolGuid, &SmmFtwHandle);
>     ASSERT_EFI_ERROR (Status);
>   
>     //
>     // Notify the Ftw wrapper driver SMM Ftw is ready
>     //
> -  FtwHandle = NULL;
> -  Status = gBS->InstallProtocolInterface (
> -                  &FtwHandle,
> -                  &gEfiSmmFaultTolerantWriteProtocolGuid,
> -                  EFI_NATIVE_INTERFACE,
> -                  NULL
> -                  );
> -  ASSERT_EFI_ERROR (Status);
> +  FtwNotifySmmReady ();
>   
>     return EFI_SUCCESS;
>   }
> @@ -592,7 +582,7 @@ FvbNotificationEvent (
>   **/
>   EFI_STATUS
>   EFIAPI
> -SmmEndOfDxeCallback (
> +MmEndOfDxeCallback (
>     IN CONST EFI_GUID                       *Protocol,
>     IN VOID                                 *Interface,
>     IN EFI_HANDLE                           Handle
> @@ -614,14 +604,12 @@ SmmEndOfDxeCallback (
>   
>   **/
>   EFI_STATUS
> -EFIAPI
> -SmmFaultTolerantWriteInitialize (
> -  IN EFI_HANDLE                           ImageHandle,
> -  IN EFI_SYSTEM_TABLE                     *SystemTable
> +MmFaultTolerantWriteInitialize (
> +  VOID
>     )
>   {
>     EFI_STATUS                              Status;
> -  VOID                                    *SmmEndOfDxeRegistration;
> +  VOID                                    *MmEndOfDxeRegistration;
>   
>     //
>     // Allocate private data structure for SMM FTW protocol and do some initialization
> @@ -634,17 +622,17 @@ SmmFaultTolerantWriteInitialize (
>     //
>     // Register EFI_SMM_END_OF_DXE_PROTOCOL_GUID notify function.
>     //
> -  Status = gSmst->SmmRegisterProtocolNotify (
> -                    &gEfiSmmEndOfDxeProtocolGuid,
> -                    SmmEndOfDxeCallback,
> -                    &SmmEndOfDxeRegistration
> +  Status = gMmst->MmRegisterProtocolNotify (
> +                    &gEfiMmEndOfDxeProtocolGuid,
> +                    MmEndOfDxeCallback,
> +                    &MmEndOfDxeRegistration
>                       );
>     ASSERT_EFI_ERROR (Status);
>   
>     //
>     // Register FvbNotificationEvent () notify function.
>     //
> -  Status = gSmst->SmmRegisterProtocolNotify (
> +  Status = gMmst->MmRegisterProtocolNotify (
>                       &gEfiSmmFirmwareVolumeBlockProtocolGuid,
>                       FvbNotificationEvent,
>                       &mFvbRegistration
> diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.inf b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.inf
> index 606cc2266bda..1653365bc247 100644
> --- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.inf
> +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmm.inf
> @@ -37,6 +37,7 @@ [Sources]
>     FtwMisc.c
>     UpdateWorkingBlock.c
>     FaultTolerantWrite.c
> +  FaultTolerantWriteTraditionalMm.c
>     FaultTolerantWriteSmm.c
>     FaultTolerantWrite.h
>     FaultTolerantWriteSmmCommon.h
> @@ -46,7 +47,7 @@ [Packages]
>     MdeModulePkg/MdeModulePkg.dec
>   
>   [LibraryClasses]
> -  SmmServicesTableLib
> +  MmServicesTableLib
>     MemoryAllocationLib
>     BaseMemoryLib
>     UefiDriverEntryPoint
> @@ -73,7 +74,7 @@ [Protocols]
>     ## PRODUCES
>     ## UNDEFINED # SmiHandlerRegister
>     gEfiSmmFaultTolerantWriteProtocolGuid
> -  gEfiSmmEndOfDxeProtocolGuid                      ## CONSUMES
> +  gEfiMmEndOfDxeProtocolGuid                      ## CONSUMES
>   
>   [FeaturePcd]
>     gEfiMdeModulePkgTokenSpaceGuid.PcdFullFtwServiceEnable    ## CONSUMES
> diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmCommon.h b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmCommon.h
> index 8ad0015f3c9e..25b5f7c87326 100644
> --- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmCommon.h
> +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmCommon.h
> @@ -77,4 +77,35 @@ typedef struct {
>     UINT8                                 Data[1];
>   } SMM_FTW_GET_LAST_WRITE_HEADER;
>   
> +/**
> +  Entry point of the module
> +**/
> +EFI_STATUS
> +MmFaultTolerantWriteInitialize (
> +  VOID
> +  );
> +
> +/**
> +  This function check if the buffer is valid per processor architecture and not overlap with SMRAM.
> +
> +  @param Buffer  The buffer start address to be checked.
> +  @param Length  The buffer length to be checked.
> +
> +  @retval TRUE  This buffer is valid per processor architecture and not overlap with SMRAM.
> +  @retval FALSE This buffer is not valid per processor architecture or overlap with SMRAM.
> +**/
> +BOOLEAN
> +FtwSmmIsBufferOutsideSmmValid (
> +  IN EFI_PHYSICAL_ADDRESS  Buffer,
> +  IN UINT64                Length
> +  );
> +
> +/**
> +  Notify the system that the SMM driver is ready

How about using "SMM FTW driver" instead of "SMM driver" here and also 
for the implementations?

> +**/
> +VOID
> +FtwNotifySmmReady (
> +  VOID
> +  );
> +
>   #endif
> diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmDxe.c b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmDxe.c
> index 259e9365f483..8694b9254cde 100644
> --- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmDxe.c
> +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteSmmDxe.c
> @@ -14,6 +14,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
>   
>   **/
>   
> +#include <Library/UefiBootServicesTableLib.h>

It is not needed as FaultTolerantWriteSmmDxe.h has included it.

>   #include "FaultTolerantWriteSmmDxe.h"
>   
>   EFI_HANDLE                         mHandle                   = NULL;
> diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteTraditionalMm.c b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteTraditionalMm.c
> new file mode 100644
> index 000000000000..440dced37bf8
> --- /dev/null
> +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteTraditionalMm.c
> @@ -0,0 +1,94 @@
> +/** @file
> +
> +  Parts of the SMM/MM implementation that are specific to traditional MM
> +
> +Copyright (c) 2011 - 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
> +  )
> +{
> +  if (!SmmIsBufferOutsideSmmValid (Buffer, Length)) {
> +    DEBUG ((EFI_D_ERROR, "SmmFtwHandler: SMM communication buffer in SMRAM or overflow!\n"));

How about keeping the debug message printing code in 
FaultTolerantWriteSmm.c?

> +    return FALSE;
> +  }
> +  return TRUE;
> +}

Please add function comment header for it.

> +
> +/**
> +  Internal implementation of CRC32. Depending on the execution context
> +  (traditional 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
> +  )
> +{
> +  EFI_STATUS    Status;
> +  UINT32        ReturnValue;
> +
> +  Status = gBS->CalculateCrc32 (Buffer, Length, &ReturnValue);
> +  ASSERT_EFI_ERROR (Status);
> +
> +  return ReturnValue;
> +}
> +
> +/**
> +  Notify the system that the SMM driver is ready

How about using "SMM FTW driver" instead of "SMM driver" here?

> +**/
> +VOID
> +FtwNotifySmmReady (
> +  VOID
> +  )
> +{
> +  EFI_HANDLE          FtwHandle;
> +  EFI_STATUS          Status;
> +
> +  FtwHandle = NULL;
> +  Status = gBS->InstallProtocolInterface (
> +                  &FtwHandle,
> +                  &gEfiSmmFaultTolerantWriteProtocolGuid,
> +                  EFI_NATIVE_INTERFACE,
> +                  NULL
> +                  );
> +  ASSERT_EFI_ERROR (Status);
> +}
> +
> +EFI_STATUS
> +EFIAPI
> +SmmFaultTolerantWriteInitialize (
> +  IN EFI_HANDLE            ImageHandle,
> +  IN EFI_SYSTEM_TABLE      *SystemTable
> +  )
> +{
> +  return MmFaultTolerantWriteInitialize ();
> +}

Please add function comment header for it.

Thanks,
Star
> diff --git a/MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c b/MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c
> index 50d3421b88bb..d09e9719cf05 100644
> --- a/MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c
> +++ b/MdeModulePkg/Universal/FaultTolerantWriteDxe/UpdateWorkingBlock.c
> @@ -29,8 +29,6 @@ InitializeLocalWorkSpaceHeader (
>     VOID
>     )
>   {
> -  EFI_STATUS                              Status;
> -
>     //
>     // Check signature with gEdkiiWorkingBlockSignatureGuid.
>     //
> @@ -64,12 +62,8 @@ InitializeLocalWorkSpaceHeader (
>     //
>     // Calculate the Crc of woking block header
>     //
> -  Status = gBS->CalculateCrc32 (
> -                  &mWorkingBlockHeader,
> -                  sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER),
> -                  &mWorkingBlockHeader.Crc
> -                  );
> -  ASSERT_EFI_ERROR (Status);
> +  mWorkingBlockHeader.Crc = FtwCalculateCrc32 (&mWorkingBlockHeader,
> +                              sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER));
>   
>     mWorkingBlockHeader.WorkingBlockValid    = FTW_VALID_STATE;
>     mWorkingBlockHeader.WorkingBlockInvalid  = FTW_INVALID_STATE;
> 



  parent reply	other threads:[~2019-01-10  6:46 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-03 18:28 [PATCH 0/6] implement standalone MM versions of the variable runtime drivers Ard Biesheuvel
2019-01-03 18:28 ` [PATCH] BaseTools/GenFds: permit stripped MM_CORE_STANDALONE binaries Ard Biesheuvel
2019-01-04  5:51   ` Feng, Bob C
2019-01-03 18:28 ` [PATCH 1/6] MdePkg/Include: add MmServicesTableLib header file Ard Biesheuvel
2019-01-10  6:06   ` Zeng, Star
2019-01-03 18:28 ` [PATCH 2/6] MdePkg: implement MmServicesTableLib based on traditional SMM Ard Biesheuvel
2019-01-10  1:35   ` Wang, Jian J
     [not found]   ` <9bfb4d7c-3d4e-c05c-49a1-1959ddc902e3@intel.com>
2019-01-10  6:54     ` Zeng, Star
2019-01-03 18:28 ` [PATCH 3/6] MdeModulePkg/FaultTolerantWriteDxe: factor out boot service accesses Ard Biesheuvel
2019-01-10  1:36   ` Wang, Jian J
2019-01-10  6:45   ` Zeng, Star [this message]
2019-01-03 18:28 ` [PATCH 4/6] MdeModulePkg/FaultTolerantWriteDxe: implement standalone MM version Ard Biesheuvel
2019-01-10  1:41   ` Wang, Jian J
2019-01-10  1:48     ` Wang, Jian J
2019-01-10  6:31     ` Zeng, Star
2019-01-10  6:47   ` Zeng, Star
2019-01-10  7:29     ` Zeng, Star
2019-01-10  7:33       ` Ard Biesheuvel
2019-01-10  7:59         ` Zeng, Star
2019-01-10 12:28           ` Wang, Jian J
2019-01-10 13:03           ` Laszlo Ersek
2019-01-10 16:23             ` Ard Biesheuvel
2019-01-11  2:18               ` Zeng, Star
2019-01-03 18:28 ` [PATCH 5/6] MdeModulePkg/VariableRuntimeDxe: factor out boot service accesses Ard Biesheuvel
2019-01-08 15:38   ` Laszlo Ersek
2019-01-10  2:33     ` Wang, Jian J
2019-01-10  7:17       ` Zeng, Star
2019-01-10  7:19   ` Zeng, Star
2019-01-03 18:28 ` [PATCH 6/6] MdeModulePkg/VariableRuntimeDxe: implement standalone MM version Ard Biesheuvel
2019-01-10  1:49   ` Wang, Jian J
2019-01-10  1:50   ` Wang, Jian J
2019-01-10  7:28   ` Zeng, Star
2019-01-03 19:13 ` [PATCH 0/6] implement standalone MM versions of the variable runtime drivers Ard Biesheuvel
2019-01-07 12:44 ` Gao, Liming
2019-01-07 13:05   ` Ard Biesheuvel
2019-01-07 19:08     ` Laszlo Ersek
2019-01-09 13:56     ` Gao, Liming
2019-01-09 15:29       ` Ard Biesheuvel
2019-01-14  2:55         ` Gao, Liming
2019-01-14  8:26           ` Ard Biesheuvel
2019-01-14 15:33             ` Gao, Liming
2019-01-09  9:44 ` Laszlo Ersek
2019-01-09 10:28   ` Ard Biesheuvel
2019-01-09 15:04     ` Laszlo Ersek
2019-01-09 21:46       ` Laszlo Ersek
2019-01-09 21:56         ` Ard Biesheuvel
2019-01-10  8:24 ` Zeng, Star
2019-01-13 15:42 ` Zeng, Star

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