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Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.c')
-rw-r--r-- | src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.c b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.c new file mode 100644 index 00000000..55c5cadc --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteStandaloneMm.c @@ -0,0 +1,90 @@ +/** @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 (); +} |