mirror of https://github.com/acidanthera/audk.git
UefiCpuPkg/MpService: avoid dead lock caused by CheckAllAPsStatus
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16369 6f19259b-4bc3-4df7-8a09-765794883524
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@ -632,6 +632,11 @@ StartupAllAPs (
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return EFI_INVALID_PARAMETER;
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return EFI_INVALID_PARAMETER;
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}
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}
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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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for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
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for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
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CpuData = &mMpSystemData.CpuDatas[Number];
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CpuData = &mMpSystemData.CpuDatas[Number];
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if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
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if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
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@ -653,11 +658,6 @@ StartupAllAPs (
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}
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}
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}
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}
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//
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// temporarily stop checkAllAPsStatus for initialize parameters.
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//
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mStopCheckAllAPsStatus = TRUE;
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mMpSystemData.Procedure = Procedure;
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mMpSystemData.Procedure = Procedure;
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mMpSystemData.ProcedureArgument = ProcedureArgument;
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mMpSystemData.ProcedureArgument = ProcedureArgument;
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mMpSystemData.WaitEvent = WaitEvent;
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mMpSystemData.WaitEvent = WaitEvent;
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@ -716,6 +716,11 @@ StartupAllAPs (
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return EFI_SUCCESS;
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return EFI_SUCCESS;
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}
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}
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//
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// Blocking temporarily stop CheckAllAPsStatus()
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//
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mStopCheckAllAPsStatus = TRUE;
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while (TRUE) {
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while (TRUE) {
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CheckAndUpdateAllAPsToIdleState ();
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CheckAndUpdateAllAPsToIdleState ();
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if (mMpSystemData.FinishCount == mMpSystemData.StartCount) {
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if (mMpSystemData.FinishCount == mMpSystemData.StartCount) {
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@ -859,6 +864,11 @@ StartupThisAP (
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return EFI_NOT_FOUND;
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return EFI_NOT_FOUND;
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}
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}
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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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CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
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CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
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if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT) ||
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if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT) ||
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!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
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!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
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@ -869,11 +879,6 @@ StartupThisAP (
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return EFI_NOT_READY;
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return EFI_NOT_READY;
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}
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}
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//
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// temporarily stop checkAllAPsStatus for initialize parameters.
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//
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mStopCheckAllAPsStatus = TRUE;
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SetApState (CpuData, CpuStateReady);
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SetApState (CpuData, CpuStateReady);
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SetApProcedure (CpuData, Procedure, ProcedureArgument);
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SetApProcedure (CpuData, Procedure, ProcedureArgument);
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@ -1013,6 +1018,10 @@ EnableDisableAP (
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)
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)
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{
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{
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CPU_DATA_BLOCK *CpuData;
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CPU_DATA_BLOCK *CpuData;
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BOOLEAN TempStopCheckState;
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CpuData = NULL;
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TempStopCheckState = FALSE;
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if (!IsBSP ()) {
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if (!IsBSP ()) {
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return EFI_DEVICE_ERROR;
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return EFI_DEVICE_ERROR;
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@ -1022,6 +1031,14 @@ EnableDisableAP (
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return EFI_NOT_FOUND;
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return EFI_NOT_FOUND;
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}
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}
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//
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// temporarily stop checkAllAPsStatus for initialize parameters.
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//
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if (!mStopCheckAllAPsStatus) {
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mStopCheckAllAPsStatus = TRUE;
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TempStopCheckState = TRUE;
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}
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CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
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CpuData = &mMpSystemData.CpuDatas[ProcessorNumber];
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if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
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if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
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return EFI_INVALID_PARAMETER;
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return EFI_INVALID_PARAMETER;
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@ -1048,6 +1065,10 @@ EnableDisableAP (
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CpuStatusFlagOr (CpuData, (*HealthFlag & PROCESSOR_HEALTH_STATUS_BIT));
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CpuStatusFlagOr (CpuData, (*HealthFlag & PROCESSOR_HEALTH_STATUS_BIT));
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}
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}
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if (TempStopCheckState) {
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mStopCheckAllAPsStatus = FALSE;
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}
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return EFI_SUCCESS;
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return EFI_SUCCESS;
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}
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}
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@ -1303,20 +1324,6 @@ CheckAllAPsStatus (
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//
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//
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for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
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for (Number = 0; Number < mMpSystemData.NumberOfProcessors; Number++) {
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CpuData = &mMpSystemData.CpuDatas[Number];
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CpuData = &mMpSystemData.CpuDatas[Number];
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if (TestCpuStatusFlag (CpuData, PROCESSOR_AS_BSP_BIT)) {
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//
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// Skip BSP
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//
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continue;
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}
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if (!TestCpuStatusFlag (CpuData, PROCESSOR_ENABLED_BIT)) {
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//
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// Skip Disabled processors
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//
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continue;
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}
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if (CpuData->WaitEvent) {
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if (CpuData->WaitEvent) {
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CheckThisAPStatus (NULL, (VOID *)CpuData);
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CheckThisAPStatus (NULL, (VOID *)CpuData);
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}
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}
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