MdeModulePkg/Universal/Acpi/FirmwarePerformanceDataTableSmm/FirmwarePerformanceTraditional.c

/** @file
  This module collects performance data for MM driver boot records and S3 Suspend Performance Record.

  This module registers report status code listener to collect performance data
  for MM driver boot records and S3 Suspend Performance Record.

  Caution: This module requires additional review when modified.
  This driver will have external input - communicate buffer in MM mode.
  This external input must be validated carefully to avoid security issue like
  buffer overflow, integer overflow.

  FpdtSmiHandler() will receive untrusted input and do basic validation.

  Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
  Copyright (c), Microsoft Corporation.
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include <PiSmm.h>

#include <Library/SmmMemLib.h>
#include "FirmwarePerformanceCommon.h"

/**
  This function is an abstraction layer for implementation specific Mm buffer validation routine.

  @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
IsBufferOutsideMmValid (
  IN EFI_PHYSICAL_ADDRESS  Buffer,
  IN UINT64                Length
  )
{
  return SmmIsBufferOutsideSmmValid (Buffer, Length);
}

/**
  The module Entry Point of the Firmware Performance Data Table MM driver.

  @param[in]  ImageHandle    The firmware allocated handle for the EFI image.
  @param[in]  SystemTable    A pointer to the EFI System Table.

  @retval EFI_SUCCESS    The entry point is executed successfully.
  @retval Other          Some error occurs when executing this entry point.

**/
EFI_STATUS
EFIAPI
FirmwarePerformanceSmmEntryPoint (
  IN EFI_HANDLE          ImageHandle,
  IN EFI_SYSTEM_TABLE    *SystemTable
  )
{
  return FirmwarePerformanceCommonEntryPoint ();
}