mirror of
https://github.com/acidanthera/audk.git
synced 2025-07-17 02:34:26 +02:00
9d510e61fc
https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com> Reviewed-by: Hao Wu <hao.a.wu@intel.com> Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
91 lines
2.5 KiB
C
91 lines
2.5 KiB
C
/** @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>
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#include <Library/SmmMemLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
#include "FaultTolerantWrite.h"
|
|
#include "FaultTolerantWriteSmmCommon.h"
|
|
|
|
/**
|
|
This function checks if the buffer is valid per processor architecture and
|
|
does 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 does not
|
|
overlap with SMRAM.
|
|
@retval FALSE This buffer is not valid per processor architecture or overlaps
|
|
with SMRAM.
|
|
**/
|
|
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);
|
|
}
|
|
|
|
/**
|
|
Notify the system that the SMM FTW driver is ready.
|
|
**/
|
|
VOID
|
|
FtwNotifySmmReady (
|
|
VOID
|
|
)
|
|
{
|
|
}
|
|
|
|
/**
|
|
This function is the entry point of the Fault Tolerant Write driver.
|
|
|
|
@param[in] ImageHandle A handle for the image that is initializing this driver
|
|
@param[in] MmSystemTable A pointer to the MM system table
|
|
|
|
@retval EFI_SUCCESS The initialization finished successfully.
|
|
@retval EFI_OUT_OF_RESOURCES Allocate memory error
|
|
@retval EFI_INVALID_PARAMETER Workspace or Spare block does not exist
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
StandaloneMmFaultTolerantWriteInitialize (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_MM_SYSTEM_TABLE *MmSystemTable
|
|
)
|
|
{
|
|
return MmFaultTolerantWriteInitialize ();
|
|
}
|