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/** @file
Command header of for Debug Agent library instance.
Copyright (c) 2010, 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 _DEBUG_AGENT_H_
#define _DEBUG_AGENT_H_
#include <Register/LocalApic.h>
#include <Guid/DebugAgentGuid.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/ResetSystemLib.h>
#include <Library/IoLib.h>
#include <Library/HobLib.h>
#include <Library/DebugCommunicationLib.h>
#include <Library/DebugAgentLib.h>
#include <Library/PcdLib.h>
#include <Library/SynchronizationLib.h>
#include <Library/LocalApicLib.h>
#include <TransferProtocol.h>
#include <ImageDebugSupport.h>
#include "DebugMp.h"
#include "DebugTimer.h"
#include "ArchDebugSupport.h"
#define DEBUG_AGENT_REVISION ((0 << 16) | 01)
#define DEBUG_AGENT_CAPABILITIES 0
#define DEBUG_INT1_VECTOR 1
#define DEBUG_INT3_VECTOR 3
#define DEBUG_TIMER_VECTOR 32
#define DEBUG_MAILBOX_VECTOR 33
#define SOFT_INTERRUPT_SIGNATURE SIGNATURE_32('S','O','F','T')
#define SYSTEM_RESET_SIGNATURE SIGNATURE_32('S','Y','S','R')
#define MEMORY_READY_SIGNATURE SIGNATURE_32('M','E','M','R')
extern UINTN Exception0Handle;
extern UINTN TimerInterruptHandle;
extern UINT16 ExceptionStubHeaderSize;
typedef union {
struct {
UINT32 HostPresent : 1;
UINT32 BreakOnNextSmi : 1;
UINT32 Reserved : 30;
} Bits;
UINT32 Uint32;
} DEBUG_AGENT_FLAG;
#pragma pack(1)
typedef struct {
DEBUG_AGENT_FLAG DebugFlag;
UINT64 DebugPortHandle;
} DEBUG_AGENT_MAILBOX;
#pragma pack()
typedef union {
struct {
UINT32 LimitLow : 16;
UINT32 BaseLow : 16;
UINT32 BaseMid : 8;
UINT32 Type : 4;
UINT32 System : 1;
UINT32 Dpl : 2;
UINT32 Present : 1;
UINT32 LimitHigh : 4;
UINT32 Software : 1;
UINT32 Reserved : 1;
UINT32 DefaultSize : 1;
UINT32 Granularity : 1;
UINT32 BaseHigh : 8;
} Bits;
UINT64 Uint64;
} IA32_GDT;
/**
Caller provided function to be invoked at the end of DebugPortInitialize().
Refer to the descrption for DebugPortInitialize() for more details.
@param[in] Context The first input argument of DebugPortInitialize().
@param[in] DebugPortHandle Debug port handle created by Debug Communication Libary.
**/
VOID
EFIAPI
InitializeDebugAgentPhase2 (
IN VOID *Context,
IN DEBUG_PORT_HANDLE DebugPortHandle
);
/**
Initialize IDT entries to support source level debug.
**/
VOID
InitializeDebugIdt (
VOID
);
/**
Write specified register into save CPU context.
@param[in] CpuContext Pointer to saved CPU context.
@param[in] Index Register index value.
@param[in] Offset Offset in register address range
@param[in] Width Data width to read.
@param[in] RegisterBuffer Pointer to input buffer with data.
**/
VOID
ArchWriteRegisterBuffer (
IN DEBUG_CPU_CONTEXT *CpuContext,
IN UINT8 Index,
IN UINT8 Offset,
IN UINT8 Width,
IN UINT8 *RegisterBuffer
);
/**
Read register value from saved CPU context.
@param[in] CpuContext Pointer to saved CPU context.
@param[in] Index Register index value.
@param[in] Offset Offset in register address range
@param[in] Width Data width to read.
@return The address of register value.
**/
UINT8 *
ArchReadRegisterBuffer (
IN DEBUG_CPU_CONTEXT *CpuContext,
IN UINT8 Index,
IN UINT8 Offset,
IN UINT8 *Width
);
/**
Send packet with response data to HOST.
@param[in] CpuContext Pointer to saved CPU context.
@param[in] Data Pointer to response data buffer.
@param[in] DataSize Size of response data in byte.
@retval RETURN_SUCCESS Response data was sent successfully.
@retval RETURN_DEVICE_ERROR Cannot receive DEBUG_COMMAND_OK from HOST.
**/
RETURN_STATUS
SendDataResponsePacket (
IN DEBUG_CPU_CONTEXT *CpuContext,
IN UINT8 *Data,
IN UINT16 DataSize
);
/**
Read segment selector by register index.
@param[in] CpuContext Pointer to saved CPU context.
@param[in] RegisterIndex Register Index.
@return Value of segment selector.
**/
UINT64
ReadRegisterSelectorByIndex (
IN DEBUG_CPU_CONTEXT *CpuContext,
IN UINT8 RegisterIndex
);
/**
Read group register of common registers.
@param[in] CpuContext Pointer to saved CPU context.
@param[in] RegisterGroup Pointer to Group registers.
**/
VOID
ReadRegisterGroup (
IN DEBUG_CPU_CONTEXT *CpuContext,
IN DEBUG_DATA_REPONSE_READ_REGISTER_GROUP *RegisterGroup
);
/**
Read group register of Segment Base.
@param[in] CpuContext Pointer to saved CPU context.
@param[in] RegisterGroupSegBase Pointer to Group registers.
**/
VOID
ReadRegisterGroupSegBase (
IN DEBUG_CPU_CONTEXT *CpuContext,
IN DEBUG_DATA_REPONSE_READ_REGISTER_GROUP_SEGBASE *RegisterGroupSegBase
);
/**
Read gourp register of Segment Limit.
@param[in] CpuContext Pointer to saved CPU context.
@param[in] RegisterGroupSegLim Pointer to Group registers.
**/
VOID
ReadRegisterGroupSegLim (
IN DEBUG_CPU_CONTEXT *CpuContext,
IN DEBUG_DATA_REPONSE_READ_REGISTER_GROUP_SEGLIM *RegisterGroupSegLim
);
/**
Read group register by group index.
@param[in] CpuContext Pointer to saved CPU context.
@param[in] GroupIndex Group Index.
@retval RETURN_SUCCESS Read successfully.
@retval RETURN_NOT_SUPPORTED Group index cannot be supported.
**/
RETURN_STATUS
ArchReadRegisterGroup (
IN DEBUG_CPU_CONTEXT *CpuContext,
IN UINT8 GroupIndex
);
/**
Send acknowledge packet to HOST.
@param AckCommand Type of Acknowledge packet.
**/
VOID
SendAckPacket (
IN UINT8 AckCommand
);
/**
Receive acknowledge packet OK from HOST in specified time.
@param[in] Timeout Time out value to wait for acknowlege from HOST.
The unit is microsecond.
@param[out] BreakReceived If BreakReceived is not NULL,
TRUE is retured if break-in symbol received.
FALSE is retured if break-in symbol not received.
@retval RETRUEN_SUCCESS Succeed to receive acknowlege packet from HOST,
the type of acknowlege packet saved in Ack.
@retval RETURN_TIMEOUT Specified timeout value was up.
**/
RETURN_STATUS
WaitForAckPacketOK (
IN UINTN Timeout,
OUT BOOLEAN *BreakReceived OPTIONAL
);
/**
Check if HOST is connected based on Mailbox.
@retval TRUE HOST is connected.
@retval FALSE HOST is not connected.
**/
BOOLEAN
IsHostConnected (
VOID
);
/**
Get Debug Agent Mailbox pointer.
@return Mailbox pointer.
**/
DEBUG_AGENT_MAILBOX *
GetMailboxPointer (
VOID
);
/**
Get debug port handle.
@return Debug port handle.
**/
DEBUG_PORT_HANDLE
GetDebugPortHandle (
VOID
);
#endif
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