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/** @file
Common header file for MP Initialize Library.
Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef _MP_LIB_H_
#define _MP_LIB_H_
#include <PiPei.h>
#include <Register/Cpuid.h>
#include <Register/Msr.h>
#include <Register/LocalApic.h>
#include <Register/Microcode.h>
#include <Library/MpInitLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DebugLib.h>
#include <Library/LocalApicLib.h>
#include <Library/CpuLib.h>
#include <Library/UefiCpuLib.h>
#include <Library/TimerLib.h>
#include <Library/SynchronizationLib.h>
#include <Library/MtrrLib.h>
#include <Library/HobLib.h>
//
// AP loop state when APs are in idle state
// It's value is the same with PcdCpuApLoopMode
//
typedef enum {
ApInHltLoop = 1,
ApInMwaitLoop = 2,
ApInRunLoop = 3
} AP_LOOP_MODE;
//
// AP reset code information including code address and size,
// this structure will be shared be C code and assembly code.
// It is natural aligned by design.
//
typedef struct {
UINT8 *RendezvousFunnelAddress;
UINTN ModeEntryOffset;
UINTN RendezvousFunnelSize;
UINT8 *RelocateApLoopFuncAddress;
UINTN RelocateApLoopFuncSize;
} MP_ASSEMBLY_ADDRESS_MAP;
#pragma pack(1)
//
// MP CPU exchange information for AP reset code
// This structure is required to be packed because fixed field offsets
// into this structure are used in assembly code in this module
//
typedef struct {
UINTN Lock;
UINTN StackStart;
UINTN StackSize;
UINTN CFunction;
IA32_DESCRIPTOR GdtrProfile;
IA32_DESCRIPTOR IdtrProfile;
UINTN BufferStart;
UINTN ModeOffset;
UINTN NumApsExecuting;
UINTN CodeSegment;
UINTN DataSegment;
UINTN EnableExecuteDisable;
UINTN Cr3;
} MP_CPU_EXCHANGE_INFO;
#pragma pack()
/**
Assembly code to place AP into safe loop mode.
Place AP into targeted C-State if MONITOR is supported, otherwise
place AP into hlt state.
Place AP in protected mode if the current is long mode. Due to AP maybe
wakeup by some hardware event. It could avoid accessing page table that
may not available during booting to OS.
@param[in] MwaitSupport TRUE indicates MONITOR is supported.
FALSE indicates MONITOR is not supported.
@param[in] ApTargetCState Target C-State value.
@param[in] PmCodeSegment Protected mode code segment value.
**/
typedef
VOID
(EFIAPI * ASM_RELOCATE_AP_LOOP) (
IN BOOLEAN MwaitSupport,
IN UINTN ApTargetCState,
IN UINTN PmCodeSegment
);
/**
Assembly code to get starting address and size of the rendezvous entry for APs.
Information for fixing a jump instruction in the code is also returned.
@param[out] AddressMap Output buffer for address map information.
**/
VOID
EFIAPI
AsmGetAddressMap (
OUT MP_ASSEMBLY_ADDRESS_MAP *AddressMap
);
#endif
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