b422b62c01
1. Add DebugAgentPei driver to initialize Debug Agent in PEI phase. Add DebugAgentDxe driver to initialize Debug Agent in DXE phase. DebugAgentDxe driver could be loaded and unloaded in shell. 2. Update the SourceLevelDebugPkg so that the debug agent can be initialized in any phase: SEC, PEI or DXE. 3. Add an enhanced retry algorithm that provides a robust connection when data loss happens in the debug channel. 4. Clear DR7 register in exception handler. 5. Set the default serial port parameter to 0 instead of PCDs. 6. Build pointer of Mailbox in HOB instead of Mailbox itself, since HOB may be moved at DXE entry point function. 7. Raise TPL to prevent recursion from EFI timer interrupts in SerialIo.c. 8. Add one spin lock for accessing Mailbox when MP debugging supported. 9. Use more non-NULL library instances in SourceLevelDebugPkg DSC file, thus DebugAgentDxe.efi built from SourceLevelDebugPkg could work in shell. 10.Separate all operations about IDT table entry from SecDebugAgentLib.c into DebugAgent\DebugAgentCommon's arch sub-directory. 11.Enhance Debug Agent to avoid breaking by hardware SMI during DXE debugging phase. 12.Add supporting on mode switch code debugging. 13.Remove reset Host Controller operation in DebugCommunicationLibUsb.c to avoid impacting EDKII usb stack. 14.Fix debug timer interrupt missing issue after back from legacy code. Signed-off-by: Jeff Fan <jeff.fan@intel.com> Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Signed-off-by: Feng Tian <feng.tian@intel.com> Reviewed-by: Jeff Fan <jeff.fan@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14083 6f19259b-4bc3-4df7-8a09-765794883524
223 lines
5.7 KiB
C
223 lines
5.7 KiB
C
/** @file
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Header file for Multi-Processor support.
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Copyright (c) 2010 - 2013, 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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#ifndef _DEBUG_MP_H_
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#define _DEBUG_MP_H_
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#define DEBUG_CPU_MAX_COUNT 256
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typedef struct {
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UINT32 CpuCount; ///< Processor count
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UINT16 ApicID[DEBUG_CPU_MAX_COUNT]; ///< Record the local apic id for each processor
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} DEBUG_CPU_DATA;
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typedef struct {
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SPIN_LOCK MpContextSpinLock; ///< Lock for writting MP context
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SPIN_LOCK DebugPortSpinLock; ///< Lock for access debug port
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SPIN_LOCK MailboxSpinLock; ///< Lock for accessing mail box
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UINT8 CpuBreakMask[DEBUG_CPU_MAX_COUNT/8]; ///< Bitmask of all breaking CPUs
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UINT8 CpuStopStatusMask[DEBUG_CPU_MAX_COUNT/8]; ///< Bitmask of CPU stop status
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UINT32 ViewPointIndex; ///< Current view point to be debugged
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UINT32 BspIndex; ///< Processor index value of BSP
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UINT32 BreakAtCpuIndex; ///< Processor index value of the current breaking CPU
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UINT32 DebugTimerInitCount; ///< Record BSP's init timer count
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BOOLEAN IpiSentByAp; ///< TRUR: IPI is sent by AP. TALSE: IPI is sent by BSP
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BOOLEAN RunCommandSet; ///< TRUE: RUN commmand is executing. FALSE : RUN command has been executed.
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} DEBUG_MP_CONTEXT;
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extern DEBUG_MP_CONTEXT volatile mDebugMpContext;
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extern DEBUG_CPU_DATA volatile mDebugCpuData;
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/**
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Break the other processor by send IPI.
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@param[in] CurrentProcessorIndex Current processor index value.
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**/
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VOID
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HaltOtherProcessors (
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IN UINT32 CurrentProcessorIndex
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);
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/**
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Get the current processor's index.
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@return Processor index value.
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**/
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UINT32
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GetProcessorIndex (
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VOID
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);
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/**
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Acquire a spin lock when Multi-processor supported.
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It will block in the function if cannot get the access control.
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If Multi-processor is not supported, return directly.
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@param[in, out] MpSpinLock A pointer to the spin lock.
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**/
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VOID
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AcquireMpSpinLock (
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IN OUT SPIN_LOCK *MpSpinLock
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);
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/**
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Release a spin lock when Multi-processor supported.
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@param[in, out] MpSpinLock A pointer to the spin lock.
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**/
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VOID
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ReleaseMpSpinLock (
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IN OUT SPIN_LOCK *MpSpinLock
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);
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/**
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Check if the specified processor is BSP or not.
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@param[in] ProcessorIndex Processor index value.
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@retval TRUE It is BSP.
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@retval FALSE It isn't BSP.
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**/
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BOOLEAN
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IsBsp (
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IN UINT32 ProcessorIndex
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);
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/**
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Set processor stop flag bitmask in MP context.
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@param[in] ProcessorIndex Processor index value.
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@param[in] StopFlag TRUE means set stop flag.
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FALSE means clean break flag.
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**/
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VOID
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SetCpuStopFlagByIndex (
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IN UINT32 ProcessorIndex,
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IN BOOLEAN StopFlag
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);
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/**
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Set processor break flag bitmask in MP context.
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@param[in] ProcessorIndex Processor index value.
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@param[in] BreakFlag TRUE means set break flag.
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FALSE means clean break flag.
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**/
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VOID
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SetCpuBreakFlagByIndex (
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IN UINT32 ProcessorIndex,
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IN BOOLEAN BreakFlag
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);
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/**
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Check if processor is stopped already.
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@param[in] ProcessorIndex Processor index value.
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@retval TRUE Processor is stopped already.
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@retval FALSE Processor isn't stopped.
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**/
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BOOLEAN
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IsCpuStopped (
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IN UINT32 ProcessorIndex
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);
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/**
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Set the run command flag.
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@param[in] RunningFlag TRUE means run command flag is set.
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FALSE means run command flag is cleared.
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**/
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VOID
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SetCpuRunningFlag (
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IN BOOLEAN RunningFlag
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);
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/**
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Set the current view point to be debugged.
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@param[in] ProcessorIndex Processor index value.
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**/
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VOID
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SetDebugViewPoint (
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IN UINT32 ProcessorIndex
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);
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/**
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Set the IPI send by BPS/AP flag.
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@param[in] IpiSentByApFlag TRUE means this IPI is sent by AP.
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FALSE means this IPI is sent by BSP.
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**/
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VOID
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SetIpiSentByApFlag (
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IN BOOLEAN IpiSentByApFlag
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);
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/**
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Check the next pending breaking CPU.
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@retval others There is at least one processor broken, the minimum
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index number of Processor returned.
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@retval -1 No any processor broken.
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**/
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UINT32
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FindNextPendingBreakCpu (
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VOID
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);
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/**
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Check if all processors are in running status.
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@retval TRUE All processors run.
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@retval FALSE At least one processor does not run.
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**/
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BOOLEAN
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IsAllCpuRunning (
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VOID
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);
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/**
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Check if the current processor is the first breaking processor.
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If yes, halt other processors.
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@param[in] ProcessorIndex Processor index value.
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@return TRUE This processor is the first breaking processor.
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@return FALSE This processor is not the first breaking processor.
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**/
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BOOLEAN
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IsFirstBreakProcessor (
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IN UINT32 ProcessorIndex
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);
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#endif
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