/** @file
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Header file for CpuPlatform Lib.
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Copyright (c) 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 _CPU_PLATFORM_LIB_H_
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#define _CPU_PLATFORM_LIB_H_
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#include <CpuRegs.h>
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#include <CpuDataStruct.h>
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#include <CpuPowerMgmt.h>
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/**
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Check CPU Type of the platform
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@retval CPU_FAMILY CPU type
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**/
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CPU_FAMILY
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EFIAPI
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GetCpuFamily (
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VOID
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);
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/**
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Return Cpu stepping type
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@retval CPU_STEPPING Cpu stepping type
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**/
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CPU_STEPPING
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EFIAPI
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GetCpuStepping (
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VOID
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);
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/**
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Return CPU Sku
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@retval UINT8 CPU Sku
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**/
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UINT8
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EFIAPI
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GetCpuSku (
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VOID
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);
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/**
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Returns the processor microcode revision of the processor installed in the system.
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@retval Processor Microcode Revision
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**/
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UINT32
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GetCpuUcodeRevision (
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VOID
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);
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/**
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Check if this microcode is correct one for processor
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@param[in] Cpuid - processor CPUID
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@param[in] MicrocodeEntryPoint - entry point of microcode
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@param[in] Revision - revision of microcode
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@retval CorrectMicrocode if this microcode is correct
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**/
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BOOLEAN
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CheckMicrocode (
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IN UINT32 Cpuid,
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IN CPU_MICROCODE_HEADER *MicrocodeEntryPoint,
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IN UINT32 *Revision
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);
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/**
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Check on the processor if SGX is supported.
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@retval True if SGX supported or FALSE if not
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**/
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BOOLEAN
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IsSgxSupported (
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VOID
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);
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/**
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Get processor generation
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@retval CPU_GENERATION Returns the executing thread's processor generation.
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**/
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CPU_GENERATION
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GetCpuGeneration (
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VOID
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);
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/**
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Check if Disable CPU Debug (DCD) bit is set from FIT CPU Debugging [Disabled].
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If it is set, CPU probe mode is disabled.
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@retval TRUE DCD is set
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@retval FALSE DCD is clear
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**/
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BOOLEAN
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IsCpuDebugDisabled (
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VOID
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);
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/**
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Is Whiskey Lake CPU.
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@retval TRUE The CPUID corresponds with a Whiskey Lake CPU
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@retval FALSE The CPUID does not correspond with a Whiskey Lake CPU
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**/
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BOOLEAN
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IsWhlCpu (
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VOID
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);
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#endif
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