8ad05bd26b
This fix is to pass VS2010/VS2012 build. Cc: Feng Tian <feng.tian@intel.com> Cc: Dandan Bi <dandan.bi@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Dandan Bi <dandan.bi@intel.com>
744 lines
27 KiB
C
744 lines
27 KiB
C
/** @file
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MP initialize support functions for DXE phase.
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "MpLib.h"
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#include <Library/UefiLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DebugAgentLib.h>
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#include <Protocol/Timer.h>
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#define AP_CHECK_INTERVAL (EFI_TIMER_PERIOD_MILLISECONDS (100))
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#define AP_SAFE_STACK_SIZE 128
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CPU_MP_DATA *mCpuMpData = NULL;
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EFI_EVENT mCheckAllApsEvent = NULL;
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EFI_EVENT mMpInitExitBootServicesEvent = NULL;
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EFI_EVENT mLegacyBootEvent = NULL;
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volatile BOOLEAN mStopCheckAllApsStatus = TRUE;
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VOID *mReservedApLoopFunc = NULL;
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UINTN mReservedTopOfApStack;
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volatile UINT32 mNumberToFinish = 0;
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/**
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Enable Debug Agent to support source debugging on AP function.
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**/
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VOID
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EnableDebugAgent (
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VOID
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)
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{
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//
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// Initialize Debug Agent to support source level debug in DXE phase
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//
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InitializeDebugAgent (DEBUG_AGENT_INIT_DXE_AP, NULL, NULL);
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}
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/**
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Get the pointer to CPU MP Data structure.
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@return The pointer to CPU MP Data structure.
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**/
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CPU_MP_DATA *
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GetCpuMpData (
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VOID
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)
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{
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ASSERT (mCpuMpData != NULL);
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return mCpuMpData;
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}
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/**
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Save the pointer to CPU MP Data structure.
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@param[in] CpuMpData The pointer to CPU MP Data structure will be saved.
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**/
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VOID
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SaveCpuMpData (
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IN CPU_MP_DATA *CpuMpData
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)
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{
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mCpuMpData = CpuMpData;
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}
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/**
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Allocate reset vector buffer.
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@param[in, out] CpuMpData The pointer to CPU MP Data structure.
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**/
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VOID
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AllocateResetVector (
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IN OUT CPU_MP_DATA *CpuMpData
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)
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{
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EFI_STATUS Status;
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UINTN ApResetVectorSize;
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EFI_PHYSICAL_ADDRESS StartAddress;
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if (CpuMpData->SaveRestoreFlag) {
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BackupAndPrepareWakeupBuffer (CpuMpData);
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} else {
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ApResetVectorSize = CpuMpData->AddressMap.RendezvousFunnelSize +
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sizeof (MP_CPU_EXCHANGE_INFO);
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StartAddress = BASE_1MB;
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Status = gBS->AllocatePages (
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AllocateMaxAddress,
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EfiACPIMemoryNVS,
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EFI_SIZE_TO_PAGES (ApResetVectorSize),
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&StartAddress
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);
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ASSERT_EFI_ERROR (Status);
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CpuMpData->WakeupBuffer = (UINTN) StartAddress;
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CpuMpData->MpCpuExchangeInfo = (MP_CPU_EXCHANGE_INFO *) (UINTN)
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(CpuMpData->WakeupBuffer + CpuMpData->AddressMap.RendezvousFunnelSize);
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//
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// copy AP reset code in it
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//
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CopyMem (
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(VOID *) CpuMpData->WakeupBuffer,
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(VOID *) CpuMpData->AddressMap.RendezvousFunnelAddress,
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CpuMpData->AddressMap.RendezvousFunnelSize
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);
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}
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}
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/**
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Free AP reset vector buffer.
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@param[in] CpuMpData The pointer to CPU MP Data structure.
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**/
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VOID
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FreeResetVector (
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IN CPU_MP_DATA *CpuMpData
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)
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{
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EFI_STATUS Status;
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UINTN ApResetVectorSize;
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if (CpuMpData->SaveRestoreFlag) {
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RestoreWakeupBuffer (CpuMpData);
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} else {
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ApResetVectorSize = CpuMpData->AddressMap.RendezvousFunnelSize +
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sizeof (MP_CPU_EXCHANGE_INFO);
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Status = gBS->FreePages(
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(EFI_PHYSICAL_ADDRESS)CpuMpData->WakeupBuffer,
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EFI_SIZE_TO_PAGES (ApResetVectorSize)
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);
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ASSERT_EFI_ERROR (Status);
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}
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}
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/**
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Checks APs status and updates APs status if needed.
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**/
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VOID
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CheckAndUpdateApsStatus (
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VOID
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)
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{
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UINTN ProcessorNumber;
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EFI_STATUS Status;
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CPU_MP_DATA *CpuMpData;
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CpuMpData = GetCpuMpData ();
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//
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// First, check whether pending StartupAllAPs() exists.
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//
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if (CpuMpData->WaitEvent != NULL) {
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Status = CheckAllAPs ();
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//
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// If all APs finish for StartupAllAPs(), signal the WaitEvent for it.
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//
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if (Status != EFI_NOT_READY) {
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Status = gBS->SignalEvent (CpuMpData->WaitEvent);
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CpuMpData->WaitEvent = NULL;
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}
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}
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//
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// Second, check whether pending StartupThisAPs() callings exist.
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//
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for (ProcessorNumber = 0; ProcessorNumber < CpuMpData->CpuCount; ProcessorNumber++) {
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if (CpuMpData->CpuData[ProcessorNumber].WaitEvent == NULL) {
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continue;
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}
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Status = CheckThisAP (ProcessorNumber);
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if (Status != EFI_NOT_READY) {
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gBS->SignalEvent (CpuMpData->CpuData[ProcessorNumber].WaitEvent);
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CpuMpData->CpuData[ProcessorNumber].WaitEvent = NULL;
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}
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}
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}
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/**
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Checks APs' status periodically.
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This function is triggered by timer periodically to check the
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state of APs for StartupAllAPs() and StartupThisAP() executed
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in non-blocking mode.
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@param[in] Event Event triggered.
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@param[in] Context Parameter passed with the event.
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**/
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VOID
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EFIAPI
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CheckApsStatus (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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//
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// If CheckApsStatus() is not stopped, otherwise return immediately.
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//
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if (!mStopCheckAllApsStatus) {
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CheckAndUpdateApsStatus ();
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}
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}
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/**
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Get Protected mode code segment from current GDT table.
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@return Protected mode code segment value.
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**/
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UINT16
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GetProtectedModeCS (
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VOID
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)
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{
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IA32_DESCRIPTOR GdtrDesc;
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IA32_SEGMENT_DESCRIPTOR *GdtEntry;
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UINTN GdtEntryCount;
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UINT16 Index;
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Index = (UINT16) -1;
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AsmReadGdtr (&GdtrDesc);
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GdtEntryCount = (GdtrDesc.Limit + 1) / sizeof (IA32_SEGMENT_DESCRIPTOR);
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GdtEntry = (IA32_SEGMENT_DESCRIPTOR *) GdtrDesc.Base;
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for (Index = 0; Index < GdtEntryCount; Index++) {
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if (GdtEntry->Bits.L == 0) {
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if (GdtEntry->Bits.Type > 8 && GdtEntry->Bits.L == 0) {
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break;
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}
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}
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GdtEntry++;
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}
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ASSERT (Index != -1);
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return Index * 8;
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}
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/**
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Do sync on APs.
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@param[in, out] Buffer Pointer to private data buffer.
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**/
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VOID
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EFIAPI
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RelocateApLoop (
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IN OUT VOID *Buffer
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)
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{
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CPU_MP_DATA *CpuMpData;
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BOOLEAN MwaitSupport;
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ASM_RELOCATE_AP_LOOP AsmRelocateApLoopFunc;
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UINTN ProcessorNumber;
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MpInitLibWhoAmI (&ProcessorNumber);
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CpuMpData = GetCpuMpData ();
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MwaitSupport = IsMwaitSupport ();
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AsmRelocateApLoopFunc = (ASM_RELOCATE_AP_LOOP) (UINTN) mReservedApLoopFunc;
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AsmRelocateApLoopFunc (
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MwaitSupport,
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CpuMpData->ApTargetCState,
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CpuMpData->PmCodeSegment,
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mReservedTopOfApStack - ProcessorNumber * AP_SAFE_STACK_SIZE,
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(UINTN) &mNumberToFinish
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);
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//
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// It should never reach here
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//
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ASSERT (FALSE);
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}
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/**
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Callback function for ExitBootServices.
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@param[in] Event Event whose notification function is being invoked.
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@param[in] Context The pointer to the notification function's context,
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which is implementation-dependent.
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**/
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VOID
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EFIAPI
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MpInitChangeApLoopCallback (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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CPU_MP_DATA *CpuMpData;
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CpuMpData = GetCpuMpData ();
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CpuMpData->SaveRestoreFlag = TRUE;
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CpuMpData->PmCodeSegment = GetProtectedModeCS ();
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CpuMpData->ApLoopMode = PcdGet8 (PcdCpuApLoopMode);
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mNumberToFinish = CpuMpData->CpuCount - 1;
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WakeUpAP (CpuMpData, TRUE, 0, RelocateApLoop, NULL);
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while (mNumberToFinish > 0) {
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CpuPause ();
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}
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DEBUG ((DEBUG_INFO, "%a() done!\n", __FUNCTION__));
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}
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/**
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Initialize global data for MP support.
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@param[in] CpuMpData The pointer to CPU MP Data structure.
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**/
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VOID
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InitMpGlobalData (
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IN CPU_MP_DATA *CpuMpData
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)
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{
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EFI_STATUS Status;
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EFI_PHYSICAL_ADDRESS Address;
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UINTN ApSafeBufferSize;
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SaveCpuMpData (CpuMpData);
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if (CpuMpData->CpuCount == 1) {
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//
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// If only BSP exists, return
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//
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return;
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}
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//
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// Avoid APs access invalid buffer data which allocated by BootServices,
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// so we will allocate reserved data for AP loop code. We also need to
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// allocate this buffer below 4GB due to APs may be transferred to 32bit
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// protected mode on long mode DXE.
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// Allocating it in advance since memory services are not available in
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// Exit Boot Services callback function.
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//
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ApSafeBufferSize = CpuMpData->AddressMap.RelocateApLoopFuncSize;
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ApSafeBufferSize += CpuMpData->CpuCount * AP_SAFE_STACK_SIZE;
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Address = BASE_4GB - 1;
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Status = gBS->AllocatePages (
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AllocateMaxAddress,
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EfiReservedMemoryType,
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EFI_SIZE_TO_PAGES (ApSafeBufferSize),
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&Address
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);
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ASSERT_EFI_ERROR (Status);
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mReservedApLoopFunc = (VOID *) (UINTN) Address;
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ASSERT (mReservedApLoopFunc != NULL);
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mReservedTopOfApStack = (UINTN) Address + EFI_PAGES_TO_SIZE (EFI_SIZE_TO_PAGES (ApSafeBufferSize));
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ASSERT ((mReservedTopOfApStack & (UINTN)(CPU_STACK_ALIGNMENT - 1)) == 0);
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CopyMem (
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mReservedApLoopFunc,
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CpuMpData->AddressMap.RelocateApLoopFuncAddress,
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CpuMpData->AddressMap.RelocateApLoopFuncSize
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);
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Status = gBS->CreateEvent (
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EVT_TIMER | EVT_NOTIFY_SIGNAL,
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TPL_NOTIFY,
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CheckApsStatus,
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NULL,
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&mCheckAllApsEvent
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);
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ASSERT_EFI_ERROR (Status);
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//
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// Set timer to check all APs status.
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//
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Status = gBS->SetTimer (
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mCheckAllApsEvent,
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TimerPeriodic,
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AP_CHECK_INTERVAL
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);
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ASSERT_EFI_ERROR (Status);
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Status = gBS->CreateEvent (
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EVT_SIGNAL_EXIT_BOOT_SERVICES,
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TPL_CALLBACK,
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MpInitChangeApLoopCallback,
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NULL,
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&mMpInitExitBootServicesEvent
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);
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ASSERT_EFI_ERROR (Status);
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Status = gBS->CreateEventEx (
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EVT_NOTIFY_SIGNAL,
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TPL_CALLBACK,
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MpInitChangeApLoopCallback,
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NULL,
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&gEfiEventLegacyBootGuid,
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&mLegacyBootEvent
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);
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ASSERT_EFI_ERROR (Status);
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}
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/**
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This service executes a caller provided function on all enabled APs.
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@param[in] Procedure A pointer to the function to be run on
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enabled APs of the system. See type
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EFI_AP_PROCEDURE.
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@param[in] SingleThread If TRUE, then all the enabled APs execute
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the function specified by Procedure one by
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one, in ascending order of processor handle
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number. If FALSE, then all the enabled APs
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execute the function specified by Procedure
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simultaneously.
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@param[in] WaitEvent The event created by the caller with CreateEvent()
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service. If it is NULL, then execute in
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blocking mode. BSP waits until all APs finish
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or TimeoutInMicroSeconds expires. If it's
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not NULL, then execute in non-blocking mode.
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BSP requests the function specified by
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Procedure to be started on all the enabled
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APs, and go on executing immediately. If
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all return from Procedure, or TimeoutInMicroSeconds
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expires, this event is signaled. The BSP
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can use the CheckEvent() or WaitForEvent()
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services to check the state of event. Type
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EFI_EVENT is defined in CreateEvent() in
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the Unified Extensible Firmware Interface
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Specification.
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@param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for
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APs to return from Procedure, either for
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blocking or non-blocking mode. Zero means
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infinity. If the timeout expires before
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all APs return from Procedure, then Procedure
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on the failed APs is terminated. All enabled
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APs are available for next function assigned
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by MpInitLibStartupAllAPs() or
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MPInitLibStartupThisAP().
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If the timeout expires in blocking mode,
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BSP returns EFI_TIMEOUT. If the timeout
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expires in non-blocking mode, WaitEvent
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is signaled with SignalEvent().
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@param[in] ProcedureArgument The parameter passed into Procedure for
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all APs.
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@param[out] FailedCpuList If NULL, this parameter is ignored. Otherwise,
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if all APs finish successfully, then its
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content is set to NULL. If not all APs
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finish before timeout expires, then its
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content is set to address of the buffer
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holding handle numbers of the failed APs.
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The buffer is allocated by MP Initialization
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library, and it's the caller's responsibility to
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free the buffer with FreePool() service.
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In blocking mode, it is ready for consumption
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when the call returns. In non-blocking mode,
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it is ready when WaitEvent is signaled. The
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list of failed CPU is terminated by
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END_OF_CPU_LIST.
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@retval EFI_SUCCESS In blocking mode, all APs have finished before
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the timeout expired.
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@retval EFI_SUCCESS In non-blocking mode, function has been dispatched
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to all enabled APs.
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@retval EFI_UNSUPPORTED A non-blocking mode request was made after the
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UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was
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signaled.
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@retval EFI_UNSUPPORTED WaitEvent is not NULL if non-blocking mode is not
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supported.
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@retval EFI_DEVICE_ERROR Caller processor is AP.
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@retval EFI_NOT_STARTED No enabled APs exist in the system.
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@retval EFI_NOT_READY Any enabled APs are busy.
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@retval EFI_NOT_READY MP Initialize Library is not initialized.
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@retval EFI_TIMEOUT In blocking mode, the timeout expired before
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all enabled APs have finished.
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@retval EFI_INVALID_PARAMETER Procedure is NULL.
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**/
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EFI_STATUS
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EFIAPI
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MpInitLibStartupAllAPs (
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IN EFI_AP_PROCEDURE Procedure,
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IN BOOLEAN SingleThread,
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IN EFI_EVENT WaitEvent OPTIONAL,
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IN UINTN TimeoutInMicroseconds,
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IN VOID *ProcedureArgument OPTIONAL,
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OUT UINTN **FailedCpuList OPTIONAL
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)
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{
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EFI_STATUS Status;
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//
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// Temporarily stop checkAllApsStatus for avoid resource dead-lock.
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//
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mStopCheckAllApsStatus = TRUE;
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Status = StartupAllAPsWorker (
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Procedure,
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SingleThread,
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WaitEvent,
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TimeoutInMicroseconds,
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ProcedureArgument,
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FailedCpuList
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);
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//
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// Start checkAllApsStatus
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//
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mStopCheckAllApsStatus = FALSE;
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return Status;
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}
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/**
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This service lets the caller get one enabled AP to execute a caller-provided
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function.
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@param[in] Procedure A pointer to the function to be run on the
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designated AP of the system. See type
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EFI_AP_PROCEDURE.
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@param[in] ProcessorNumber The handle number of the AP. The range is
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from 0 to the total number of logical
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processors minus 1. The total number of
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logical processors can be retrieved by
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MpInitLibGetNumberOfProcessors().
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@param[in] WaitEvent The event created by the caller with CreateEvent()
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service. If it is NULL, then execute in
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blocking mode. BSP waits until this AP finish
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or TimeoutInMicroSeconds expires. If it's
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not NULL, then execute in non-blocking mode.
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BSP requests the function specified by
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Procedure to be started on this AP,
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and go on executing immediately. If this AP
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return from Procedure or TimeoutInMicroSeconds
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expires, this event is signaled. The BSP
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can use the CheckEvent() or WaitForEvent()
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services to check the state of event. Type
|
|
EFI_EVENT is defined in CreateEvent() in
|
|
the Unified Extensible Firmware Interface
|
|
Specification.
|
|
@param[in] TimeoutInMicroseconds Indicates the time limit in microseconds for
|
|
this AP to finish this Procedure, either for
|
|
blocking or non-blocking mode. Zero means
|
|
infinity. If the timeout expires before
|
|
this AP returns from Procedure, then Procedure
|
|
on the AP is terminated. The
|
|
AP is available for next function assigned
|
|
by MpInitLibStartupAllAPs() or
|
|
MpInitLibStartupThisAP().
|
|
If the timeout expires in blocking mode,
|
|
BSP returns EFI_TIMEOUT. If the timeout
|
|
expires in non-blocking mode, WaitEvent
|
|
is signaled with SignalEvent().
|
|
@param[in] ProcedureArgument The parameter passed into Procedure on the
|
|
specified AP.
|
|
@param[out] Finished If NULL, this parameter is ignored. In
|
|
blocking mode, this parameter is ignored.
|
|
In non-blocking mode, if AP returns from
|
|
Procedure before the timeout expires, its
|
|
content is set to TRUE. Otherwise, the
|
|
value is set to FALSE. The caller can
|
|
determine if the AP returned from Procedure
|
|
by evaluating this value.
|
|
|
|
@retval EFI_SUCCESS In blocking mode, specified AP finished before
|
|
the timeout expires.
|
|
@retval EFI_SUCCESS In non-blocking mode, the function has been
|
|
dispatched to specified AP.
|
|
@retval EFI_UNSUPPORTED A non-blocking mode request was made after the
|
|
UEFI event EFI_EVENT_GROUP_READY_TO_BOOT was
|
|
signaled.
|
|
@retval EFI_UNSUPPORTED WaitEvent is not NULL if non-blocking mode is not
|
|
supported.
|
|
@retval EFI_DEVICE_ERROR The calling processor is an AP.
|
|
@retval EFI_TIMEOUT In blocking mode, the timeout expired before
|
|
the specified AP has finished.
|
|
@retval EFI_NOT_READY The specified AP is busy.
|
|
@retval EFI_NOT_READY MP Initialize Library is not initialized.
|
|
@retval EFI_NOT_FOUND The processor with the handle specified by
|
|
ProcessorNumber does not exist.
|
|
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP or disabled AP.
|
|
@retval EFI_INVALID_PARAMETER Procedure is NULL.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
MpInitLibStartupThisAP (
|
|
IN EFI_AP_PROCEDURE Procedure,
|
|
IN UINTN ProcessorNumber,
|
|
IN EFI_EVENT WaitEvent OPTIONAL,
|
|
IN UINTN TimeoutInMicroseconds,
|
|
IN VOID *ProcedureArgument OPTIONAL,
|
|
OUT BOOLEAN *Finished OPTIONAL
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
|
|
//
|
|
// temporarily stop checkAllApsStatus for avoid resource dead-lock.
|
|
//
|
|
mStopCheckAllApsStatus = TRUE;
|
|
|
|
Status = StartupThisAPWorker (
|
|
Procedure,
|
|
ProcessorNumber,
|
|
WaitEvent,
|
|
TimeoutInMicroseconds,
|
|
ProcedureArgument,
|
|
Finished
|
|
);
|
|
|
|
mStopCheckAllApsStatus = FALSE;
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
This service switches the requested AP to be the BSP from that point onward.
|
|
This service changes the BSP for all purposes. This call can only be performed
|
|
by the current BSP.
|
|
|
|
@param[in] ProcessorNumber The handle number of AP that is to become the new
|
|
BSP. The range is from 0 to the total number of
|
|
logical processors minus 1. The total number of
|
|
logical processors can be retrieved by
|
|
MpInitLibGetNumberOfProcessors().
|
|
@param[in] EnableOldBSP If TRUE, then the old BSP will be listed as an
|
|
enabled AP. Otherwise, it will be disabled.
|
|
|
|
@retval EFI_SUCCESS BSP successfully switched.
|
|
@retval EFI_UNSUPPORTED Switching the BSP cannot be completed prior to
|
|
this service returning.
|
|
@retval EFI_UNSUPPORTED Switching the BSP is not supported.
|
|
@retval EFI_DEVICE_ERROR The calling processor is an AP.
|
|
@retval EFI_NOT_FOUND The processor with the handle specified by
|
|
ProcessorNumber does not exist.
|
|
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the current BSP or
|
|
a disabled AP.
|
|
@retval EFI_NOT_READY The specified AP is busy.
|
|
@retval EFI_NOT_READY MP Initialize Library is not initialized.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
MpInitLibSwitchBSP (
|
|
IN UINTN ProcessorNumber,
|
|
IN BOOLEAN EnableOldBSP
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_TIMER_ARCH_PROTOCOL *Timer;
|
|
UINT64 TimerPeriod;
|
|
|
|
TimerPeriod = 0;
|
|
//
|
|
// Locate Timer Arch Protocol
|
|
//
|
|
Status = gBS->LocateProtocol (&gEfiTimerArchProtocolGuid, NULL, (VOID **) &Timer);
|
|
if (EFI_ERROR (Status)) {
|
|
Timer = NULL;
|
|
}
|
|
|
|
if (Timer != NULL) {
|
|
//
|
|
// Save current rate of DXE Timer
|
|
//
|
|
Timer->GetTimerPeriod (Timer, &TimerPeriod);
|
|
//
|
|
// Disable DXE Timer and drain pending interrupts
|
|
//
|
|
Timer->SetTimerPeriod (Timer, 0);
|
|
}
|
|
|
|
Status = SwitchBSPWorker (ProcessorNumber, EnableOldBSP);
|
|
|
|
if (Timer != NULL) {
|
|
//
|
|
// Enable and restore rate of DXE Timer
|
|
//
|
|
Timer->SetTimerPeriod (Timer, TimerPeriod);
|
|
}
|
|
|
|
return Status;
|
|
}
|
|
|
|
/**
|
|
This service lets the caller enable or disable an AP from this point onward.
|
|
This service may only be called from the BSP.
|
|
|
|
@param[in] ProcessorNumber The handle number of AP.
|
|
The range is from 0 to the total number of
|
|
logical processors minus 1. The total number of
|
|
logical processors can be retrieved by
|
|
MpInitLibGetNumberOfProcessors().
|
|
@param[in] EnableAP Specifies the new state for the processor for
|
|
enabled, FALSE for disabled.
|
|
@param[in] HealthFlag If not NULL, a pointer to a value that specifies
|
|
the new health status of the AP. This flag
|
|
corresponds to StatusFlag defined in
|
|
EFI_MP_SERVICES_PROTOCOL.GetProcessorInfo(). Only
|
|
the PROCESSOR_HEALTH_STATUS_BIT is used. All other
|
|
bits are ignored. If it is NULL, this parameter
|
|
is ignored.
|
|
|
|
@retval EFI_SUCCESS The specified AP was enabled or disabled successfully.
|
|
@retval EFI_UNSUPPORTED Enabling or disabling an AP cannot be completed
|
|
prior to this service returning.
|
|
@retval EFI_UNSUPPORTED Enabling or disabling an AP is not supported.
|
|
@retval EFI_DEVICE_ERROR The calling processor is an AP.
|
|
@retval EFI_NOT_FOUND Processor with the handle specified by ProcessorNumber
|
|
does not exist.
|
|
@retval EFI_INVALID_PARAMETER ProcessorNumber specifies the BSP.
|
|
@retval EFI_NOT_READY MP Initialize Library is not initialized.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
MpInitLibEnableDisableAP (
|
|
IN UINTN ProcessorNumber,
|
|
IN BOOLEAN EnableAP,
|
|
IN UINT32 *HealthFlag OPTIONAL
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
BOOLEAN TempStopCheckState;
|
|
|
|
TempStopCheckState = FALSE;
|
|
//
|
|
// temporarily stop checkAllAPsStatus for initialize parameters.
|
|
//
|
|
if (!mStopCheckAllApsStatus) {
|
|
mStopCheckAllApsStatus = TRUE;
|
|
TempStopCheckState = TRUE;
|
|
}
|
|
|
|
Status = EnableDisableApWorker (ProcessorNumber, EnableAP, HealthFlag);
|
|
|
|
if (TempStopCheckState) {
|
|
mStopCheckAllApsStatus = FALSE;
|
|
}
|
|
|
|
return Status;
|
|
}
|