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Diffstat (limited to 'src/VBox/Devices/EFI/Firmware/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugMp.h')
| -rw-r--r-- | src/VBox/Devices/EFI/Firmware/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugMp.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugMp.h b/src/VBox/Devices/EFI/Firmware/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugMp.h new file mode 100644 index 00000000..a169edd0 --- /dev/null +++ b/src/VBox/Devices/EFI/Firmware/SourceLevelDebugPkg/Library/DebugAgent/DebugAgentCommon/DebugMp.h @@ -0,0 +1,216 @@ +/** @file + Header file for Multi-Processor support. + + Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef _DEBUG_MP_H_ +#define _DEBUG_MP_H_ + +#define DEBUG_CPU_MAX_COUNT 256 + +typedef struct { + UINT32 CpuCount; ///< Processor count + UINT16 ApicID[DEBUG_CPU_MAX_COUNT]; ///< Record the local apic id for each processor +} DEBUG_CPU_DATA; + +typedef struct { + SPIN_LOCK MpContextSpinLock; ///< Lock for writing MP context + SPIN_LOCK DebugPortSpinLock; ///< Lock for access debug port + SPIN_LOCK MailboxSpinLock; ///< Lock for accessing mail box + UINT8 CpuBreakMask[DEBUG_CPU_MAX_COUNT/8]; ///< Bitmask of all breaking CPUs + UINT8 CpuStopStatusMask[DEBUG_CPU_MAX_COUNT/8]; ///< Bitmask of CPU stop status + UINT32 ViewPointIndex; ///< Current view point to be debugged + UINT32 BspIndex; ///< Processor index value of BSP + UINT32 BreakAtCpuIndex; ///< Processor index value of the current breaking CPU + UINT32 DebugTimerInitCount; ///< Record BSP's init timer count + BOOLEAN IpiSentByAp; ///< TRUE: IPI is sent by AP. FALSE: IPI is sent by BSP + BOOLEAN RunCommandSet; ///< TRUE: RUN command is executing. FALSE: RUN command has been executed. +} DEBUG_MP_CONTEXT; + +extern DEBUG_MP_CONTEXT volatile mDebugMpContext; +extern DEBUG_CPU_DATA volatile mDebugCpuData; + +/** + Break the other processor by send IPI. + + @param[in] CurrentProcessorIndex Current processor index value. + +**/ +VOID +HaltOtherProcessors ( + IN UINT32 CurrentProcessorIndex + ); + +/** + Get the current processor's index. + + @return Processor index value. + +**/ +UINT32 +GetProcessorIndex ( + VOID + ); + +/** + Acquire a spin lock when Multi-processor supported. + + It will block in the function if cannot get the access control. + If Multi-processor is not supported, return directly. + + @param[in, out] MpSpinLock A pointer to the spin lock. + +**/ +VOID +AcquireMpSpinLock ( + IN OUT SPIN_LOCK *MpSpinLock + ); + +/** + Release a spin lock when Multi-processor supported. + + @param[in, out] MpSpinLock A pointer to the spin lock. + +**/ +VOID +ReleaseMpSpinLock ( + IN OUT SPIN_LOCK *MpSpinLock + ); + +/** + Check if the specified processor is BSP or not. + + @param[in] ProcessorIndex Processor index value. + + @retval TRUE It is BSP. + @retval FALSE It isn't BSP. + +**/ +BOOLEAN +DebugAgentIsBsp ( + IN UINT32 ProcessorIndex + ); + +/** + Set processor stop flag bitmask in MP context. + + @param[in] ProcessorIndex Processor index value. + @param[in] StopFlag TRUE means set stop flag. + FALSE means clean break flag. + +**/ +VOID +SetCpuStopFlagByIndex ( + IN UINT32 ProcessorIndex, + IN BOOLEAN StopFlag + ); + +/** + Set processor break flag bitmask in MP context. + + @param[in] ProcessorIndex Processor index value. + @param[in] BreakFlag TRUE means set break flag. + FALSE means clean break flag. + +**/ +VOID +SetCpuBreakFlagByIndex ( + IN UINT32 ProcessorIndex, + IN BOOLEAN BreakFlag + ); + +/** + Check if processor is stopped already. + + @param[in] ProcessorIndex Processor index value. + + @retval TRUE Processor is stopped already. + @retval FALSE Processor isn't stopped. + +**/ +BOOLEAN +IsCpuStopped ( + IN UINT32 ProcessorIndex + ); + +/** + Set the run command flag. + + @param[in] RunningFlag TRUE means run command flag is set. + FALSE means run command flag is cleared. + +**/ +VOID +SetCpuRunningFlag ( + IN BOOLEAN RunningFlag + ); + +/** + Set the current view point to be debugged. + + @param[in] ProcessorIndex Processor index value. + +**/ +VOID +SetDebugViewPoint ( + IN UINT32 ProcessorIndex + ); + +/** + Set the IPI send by BPS/AP flag. + + @param[in] IpiSentByApFlag TRUE means this IPI is sent by AP. + FALSE means this IPI is sent by BSP. + +**/ +VOID +SetIpiSentByApFlag ( + IN BOOLEAN IpiSentByApFlag + ); + +/** + Check the next pending breaking CPU. + + @retval others There is at least one processor broken, the minimum + index number of Processor returned. + @retval -1 No any processor broken. + +**/ +UINT32 +FindNextPendingBreakCpu ( + VOID + ); + +/** + Check if all processors are in running status. + + @retval TRUE All processors run. + @retval FALSE At least one processor does not run. + +**/ +BOOLEAN +IsAllCpuRunning ( + VOID + ); + +/** + Check if the current processor is the first breaking processor. + + If yes, halt other processors. + + @param[in] ProcessorIndex Processor index value. + + @return TRUE This processor is the first breaking processor. + @return FALSE This processor is not the first breaking processor. + +**/ +BOOLEAN +IsFirstBreakProcessor ( + IN UINT32 ProcessorIndex + ); + +#endif + |