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For MM, gMmProfileDataHobGuid Memory Allocation HOB is defined to indicate SMM profile feature enabled or not. If the HOB exist, SMM profile base address and size will be returned in the HOB, so no need to consume the PcdCpuSmmProfileEnable feature PCD to check enable or disable. To achieve above purpose, Add the IsSmmProfileEnabled () function. With this change, Both MM and SMM can use the new function for SMM profile feature check. Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: Star Zeng <star.zeng@intel.com> Cc: Dun Tan <dun.tan@intel.com> Cc: Hongbin1 Zhang <hongbin1.zhang@intel.com> Cc: Wei6 Xu <wei6.xu@intel.com> Cc: Yuanhao Xie <yuanhao.xie@intel.com>
153 lines
2.5 KiB
C
153 lines
2.5 KiB
C
/** @file
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SMM profile header file.
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Copyright (c) 2012 - 2019, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef _SMM_PROFILE_H_
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#define _SMM_PROFILE_H_
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#include "SmmProfileInternal.h"
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//
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// External functions
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//
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/**
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Initialize processor environment for SMM profile.
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@param CpuIndex The index of the processor.
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**/
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VOID
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ActivateSmmProfile (
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IN UINTN CpuIndex
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);
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/**
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Initialize SMM profile in SMM CPU entry point.
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@param[in] Cr3 The base address of the page tables to use in SMM.
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**/
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VOID
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InitSmmProfile (
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UINT32 Cr3
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);
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/**
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Increase SMI number in each SMI entry.
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**/
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VOID
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SmmProfileRecordSmiNum (
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VOID
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);
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/**
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The Page fault handler to save SMM profile data.
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@param Rip The RIP when exception happens.
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@param ErrorCode The Error code of exception.
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**/
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VOID
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SmmProfilePFHandler (
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UINTN Rip,
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UINTN ErrorCode
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);
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/**
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Updates page table to make some memory ranges (like system memory) absent
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and make some memory ranges (like MMIO) present and execute disable. It also
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update 2MB-page to 4KB-page for some memory ranges.
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**/
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VOID
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SmmProfileStart (
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VOID
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);
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/**
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Page fault IDT handler for SMM Profile.
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**/
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VOID
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EFIAPI
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PageFaultIdtHandlerSmmProfile (
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VOID
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);
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/**
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Check if feature is supported by a processor.
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@param CpuIndex The index of the CPU.
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**/
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VOID
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CheckFeatureSupported (
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IN UINTN CpuIndex
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);
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/**
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Initialize the protected memory ranges and the 4KB-page mapped memory ranges.
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**/
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VOID
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InitProtectedMemRange (
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VOID
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);
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/**
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This function updates memory attribute according to mProtectionMemRangeCount.
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**/
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VOID
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SmmProfileUpdateMemoryAttributes (
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VOID
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);
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/**
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Get CPU Index from APIC ID.
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**/
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UINTN
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GetCpuIndex (
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VOID
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);
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/**
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Handler for Page Fault triggered by Guard page.
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@param ErrorCode The Error code of exception.
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**/
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VOID
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GuardPagePFHandler (
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UINTN ErrorCode
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);
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//
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// The flag indicates if execute-disable is supported by processor.
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//
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extern BOOLEAN mXdSupported;
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//
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// The flag indicates if execute-disable is enabled on processor.
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//
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extern BOOLEAN mXdEnabled;
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//
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// The flag indicates if SMM profile is enabled.
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//
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extern BOOLEAN mSmmProfileEnabled;
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//
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// The flag indicates if #DB will be setup in #PF handler.
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//
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extern BOOLEAN mSetupDebugTrap;
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//
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// SMI command port.
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//
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extern UINT32 mSmiCommandPort;
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#endif // _SMM_PROFILE_H_
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