UefiCpuPkg/PiSmmCpuDxeSmm/SmmProfile.h

   1 /** @file
   2 SMM profile header file.
   3
   4 Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR>
   5 This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #ifndef _SMM_PROFILE_H_
  16 #define _SMM_PROFILE_H_
  17
  18 #include "SmmProfileInternal.h"
  19
  20 //
  21 // External functions
  22 //
  23
  24 /**
  25   Initialize processor environment for SMM profile.
  26
  27   @param  CpuIndex  The index of the processor.
  28
  29 **/
  30 VOID
  31 ActivateSmmProfile (
  32   IN UINTN CpuIndex
  33   );
  34
  35 /**
  36   Initialize SMM profile in SMM CPU entry point.
  37
  38   @param[in] Cr3  The base address of the page tables to use in SMM.
  39
  40 **/
  41 VOID
  42 InitSmmProfile (
  43   UINT32  Cr3
  44   );
  45
  46 /**
  47   Increase SMI number in each SMI entry.
  48
  49 **/
  50 VOID
  51 SmmProfileRecordSmiNum (
  52   VOID
  53   );
  54
  55 /**
  56   The Page fault handler to save SMM profile data.
  57
  58   @param  Rip        The RIP when exception happens.
  59   @param  ErrorCode  The Error code of exception.
  60
  61 **/
  62 VOID
  63 SmmProfilePFHandler (
  64   UINTN Rip,
  65   UINTN ErrorCode
  66   );
  67
  68 /**
  69   Updates page table to make some memory ranges (like system memory) absent
  70   and make some memory ranges (like MMIO) present and execute disable. It also
  71   update 2MB-page to 4KB-page for some memory ranges.
  72
  73 **/
  74 VOID
  75 SmmProfileStart (
  76   VOID
  77   );
  78
  79 /**
  80   Page fault IDT handler for SMM Profile.
  81
  82 **/
  83 VOID
  84 EFIAPI
  85 PageFaultIdtHandlerSmmProfile (
  86   VOID
  87   );
  88
  89
  90 /**
  91   Check if XD feature is supported by a processor.
  92
  93 **/
  94 VOID
  95 CheckFeatureSupported (
  96   VOID
  97   );
  98
  99 /**
 100   Enable XD feature.
 101
 102 **/
 103 VOID
 104 ActivateXd (
 105   VOID
 106   );
 107
 108 /**
 109   Update page table according to protected memory ranges and the 4KB-page mapped memory ranges.
 110
 111 **/
 112 VOID
 113 InitPaging (
 114   VOID
 115   );
 116
 117 extern BOOLEAN    mXdSupported;
 118 extern BOOLEAN    mXdEnabled;
 119
 120 #endif // _SMM_PROFILE_H_