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https://github.com/acidanthera/audk.git
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e21048345b
2. Fixed issue that Ovmf with debug agent cannot boot if HOST software was not connected. Signed-off-by: vanjeff Reviewed-by: geekboy15a Reviewed-by: erictian git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12486 6f19259b-4bc3-4df7-8a09-765794883524
408 lines
14 KiB
C
408 lines
14 KiB
C
/** @file
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Transfer protocol defintions used by debug agent and host. It is only
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intended to be used by Debug related module implementation.
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Copyright (c) 2010 - 2011, 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 __TRANSFER_PROTOCOL_H__
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#define __TRANSFER_PROTOCOL_H__
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#include "ProcessorContext.h"
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#include "SoftDebuggerDefinitions.h"
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//
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// Definitions for break command.
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//
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#define DEBUG_STARTING_SYMBOL_BREAK (0x21) // '!'
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#define DEBUG_STARTING_SYMBOL_BREAK_STRING ("!")
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//
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// Definition for starting symbol of a normal debug packet. Choose a non-ASCII to avoid conflict with other serial output.
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//
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#define DEBUG_STARTING_SYMBOL_NORMAL (0xFE)
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#pragma pack(1)
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//
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// Definition for common header for normal debug packets (not including break command)
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//
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typedef struct {
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UINT8 StartSymbol;
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UINT8 Command;
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UINT8 DataLength;
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} DEBUG_COMMAND_HEADER;
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//
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// Structure to facilitate debug packet header parsing or construction
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//
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typedef struct {
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UINT8 Command;
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UINT8 DataLength;
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} DEBUG_COMMAND_HEADER_NO_START_SYMBOL;
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//
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// Definition for Command field for debug packets
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//
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#define DEBUG_COMMAND_REQUEST (0 << 7)
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#define DEBUG_COMMAND_RESPONSE (1 << 7)
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#define DEBUG_COMMAND_RESET (DEBUG_COMMAND_REQUEST | 0) // 0
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#define DEBUG_COMMAND_GO (DEBUG_COMMAND_REQUEST | 1) // 1
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#define DEBUG_COMMAND_BREAK_CAUSE (DEBUG_COMMAND_REQUEST | 2) // 2
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#define DEBUG_COMMAND_SET_HW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 3) // 3
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#define DEBUG_COMMAND_CLEAR_HW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 4) // 4
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#define DEBUG_COMMAND_SINGLE_STEPPING (DEBUG_COMMAND_REQUEST | 5) // 5
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#define DEBUG_COMMAND_SET_SW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 6) // 6
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#define DEBUG_COMMAND_CLEAR_SW_BREAKPOINT (DEBUG_COMMAND_REQUEST | 7) // 7
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#define DEBUG_COMMAND_READ_MEMORY_8 (DEBUG_COMMAND_REQUEST | 8) // 8
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#define DEBUG_COMMAND_READ_MEMORY_16 (DEBUG_COMMAND_REQUEST | 9) // 9
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#define DEBUG_COMMAND_READ_MEMORY_32 (DEBUG_COMMAND_REQUEST | 10) // 10
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#define DEBUG_COMMAND_READ_MEMORY_64 (DEBUG_COMMAND_REQUEST | 11) // 11
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#define DEBUG_COMMAND_WRITE_MEMORY_8 (DEBUG_COMMAND_REQUEST | 12) // 12
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#define DEBUG_COMMAND_WRITE_MEMORY_16 (DEBUG_COMMAND_REQUEST | 13) // 13
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#define DEBUG_COMMAND_WRITE_MEMORY_32 (DEBUG_COMMAND_REQUEST | 14) // 14
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#define DEBUG_COMMAND_WRITE_MEMORY_64 (DEBUG_COMMAND_REQUEST | 15) // 15
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#define DEBUG_COMMAND_READ_IO (DEBUG_COMMAND_REQUEST | 16) // 16
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#define DEBUG_COMMAND_WRITE_IO (DEBUG_COMMAND_REQUEST | 20) // 20
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#define DEBUG_COMMAND_READ_REGISTER (DEBUG_COMMAND_REQUEST | 24) // 24
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#define DEBUG_COMMAND_WRITE_REGISTER (DEBUG_COMMAND_REQUEST | 26) // 26
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#define DEBUG_COMMAND_STEP_OVER (DEBUG_COMMAND_REQUEST | 28) // 28
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#define DEBUG_COMMAND_STEP_OUT (DEBUG_COMMAND_REQUEST | 29) // 29
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#define DEBUG_COMMAND_STEP_BRANCH (DEBUG_COMMAND_REQUEST | 30) // 30
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#define DEBUG_COMMAND_ARCH_MODE (DEBUG_COMMAND_REQUEST | 34) // 34
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#define DEBUG_COMMAND_READ_MSR (DEBUG_COMMAND_REQUEST | 35) // 35
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#define DEBUG_COMMAND_WRITE_MSR (DEBUG_COMMAND_REQUEST | 36) // 36
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#define DEBUG_COMMAND_READ_REGISTER_GROUP (DEBUG_COMMAND_REQUEST | 37) // 37
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#define DEBUG_COMMAND_SET_DEBUG_FLAG (DEBUG_COMMAND_REQUEST | 38) // 38
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#define DEBUG_COMMAND_GET_REVISION (DEBUG_COMMAND_REQUEST | 39) // 39
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#define DEBUG_COMMAND_GET_EXCEPTION (DEBUG_COMMAND_REQUEST | 40) // 40
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#define DEBUG_COMMAND_SET_VIEWPOINT (DEBUG_COMMAND_REQUEST | 41) // 41
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#define DEBUG_COMMAND_GET_VIEWPOINT (DEBUG_COMMAND_REQUEST | 42) // 42
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//
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// The below are target side initiated commands.
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//
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#define DEBUG_COMMAND_INIT_BREAK (DEBUG_COMMAND_REQUEST | 63) // 63
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#define DEBUG_COMMAND_BREAK_POINT (DEBUG_COMMAND_REQUEST | 62) // 62
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#define DEBUG_COMMAND_MEMORY_READY (DEBUG_COMMAND_REQUEST | 61) // 61
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#define DEBUG_COMMAND_OK (DEBUG_COMMAND_RESPONSE | 0)
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#define DEBUG_COMMAND_RESEND (DEBUG_COMMAND_RESPONSE | 1)
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#define DEBUG_COMMAND_ABORT (DEBUG_COMMAND_RESPONSE | 2)
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//
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// The below 2 commands are used when transferring big data (like > ~250 bytes). The sequence is:
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// Host Macine Target Macine
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// Request =>
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// <= IN_PROGRESS with part of the data
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// CONTINUE =>
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// (could have multiple IN_PROGRESS and CONTINUE interactions)
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// <= OK with the last part of data
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// OK (no data as ACK) =>
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//
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#define DEBUG_COMMAND_IN_PROGRESS (DEBUG_COMMAND_RESPONSE | 3) // Used when trying to
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#define DEBUG_COMMAND_CONTINUE (DEBUG_COMMAND_RESPONSE | 4) // Used when trying to transfer big data (like > ~250 bytes)
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//
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// The below 2 commands are used to support deferred halt. HALT_DEFERRED will be returned when a halt request received while target is already in inter-active mode.
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// HALT_PROCESSED will be return as a possible return value for GO command, if target has a pending halt request.
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//
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#define DEBUG_COMMAND_HALT_DEFERRED (DEBUG_COMMAND_RESPONSE | 5)
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#define DEBUG_COMMAND_HALT_PROCESSED (DEBUG_COMMAND_RESPONSE | 6)
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#define DEBUG_COMMAND_NOT_SUPPORTED (DEBUG_COMMAND_RESPONSE | 15)
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//
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// Definition for data field for debug packets
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//
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#define DEBUG_DATA_MAXIMUM_LENGTH_FOR_SMALL_COMMANDS 20
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#define DEBUG_DATA_UPPER_LIMIT 0xff // This is the upper limit for the data size, by the limit of the packet header definition.
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#define DEBUG_DATA_MAXIMUM_REAL_DATA 0xf8
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#define DEBUG_DEFINITION_MAX_IO_LENGTH 4
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//
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// Response data for DEBUG_COMMAND_BREAK_CAUSE
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//
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typedef struct {
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UINT8 Cause;
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UINT64 StopAddress;
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} DEBUG_DATA_RESPONSE_BREAK_CAUSE;
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//
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// Break type defintions for DEBUG_DATA_BREAK_CAUSE
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//
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#define DEBUG_DATA_BREAK_CAUSE_UNKNOWN 0
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#define DEBUG_DATA_BREAK_CAUSE_HW_BREAKPOINT 1
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#define DEBUG_DATA_BREAK_CAUSE_STEPPING 2
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#define DEBUG_DATA_BREAK_CAUSE_SW_BREAKPOINT 3
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#define DEBUG_DATA_BREAK_CAUSE_USER_HALT 4
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#define DEBUG_DATA_BREAK_CAUSE_IMAGE_LOAD 5
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#define DEBUG_DATA_BREAK_CAUSE_IMAGE_UNLOAD 6
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#define DEBUG_DATA_BREAK_CAUSE_SYSTEM_RESET 7
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#define DEBUG_DATA_BREAK_CAUSE_EXCEPTION 8
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#define DEBUG_DATA_BREAK_CAUSE_MEMORY_READY 9
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//
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// Response data for DEBUG_COMMAND_ARCH_MODE, defined as SOFT_DEBUGGER_PROCESSOR_...
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//
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typedef struct {
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UINT8 CpuMode;
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} DEBUG_DATA_RESPONSE_ARCH_MODE;
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//
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// Cpu architecture defintions for DEBUG_DATA_RESPONSE_ARCH_MODE
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//
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#define DEBUG_DATA_BREAK_CPU_ARCH_IA16 0
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#define DEBUG_DATA_BREAK_CPU_ARCH_IA32 1
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#define DEBUG_DATA_BREAK_CPU_ARCH_X64 2
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//
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// Command and response data for DEBUG_COMMAND_XX_YY_BREAKPOINT
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//
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typedef struct {
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UINT8 Length:2; // Refer to below DEBUG_DATA_BREAKPOINT_LENGTH_XX macros
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UINT8 Access:2; // Refer to below DEBUG_DATA_BREAKPOINT_ACCESS_XX macros
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UINT8 Index:2; // Index of debug register
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UINT8 Reserved:2;
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} DEBUG_DATA_BREAKPOINT_TYPE;
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#define DEBUG_DATA_BREAKPOINT_MEMORY_ACCESS (0x11)
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#define DEBUG_DATA_BREAKPOINT_IO_ACCESS (0x10)
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#define DEBUG_DATA_BREAKPOINT_MEMORY_WRITE (0x01)
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#define DEBUG_DATA_BREAKPOINT_MEMORY_EXECUTE (0x00)
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#define DEBUG_DATA_BREAKPOINT_LENGTH_64 (0x11)
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#define DEBUG_DATA_BREAKPOINT_LENGTH_32 (0x10)
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#define DEBUG_DATA_BREAKPOINT_LENGTH_16 (0x01)
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#define DEBUG_DATA_BREAKPOINT_LENGTH_8 (0x00)
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//
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// Command data for DEBUG_COMMAND_SET_HW_BREAKPOINT
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//
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typedef struct {
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DEBUG_DATA_BREAKPOINT_TYPE Type;
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UINT64 Address;
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} DEBUG_DATA_SET_HW_BREAKPOINT;
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//
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// Command data for DEBUG_COMMAND_CLEAR_HW_BREAKPOINT
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//
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typedef struct {
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UINT8 IndexMask; // 0x0f will clear all hw breakpoints
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} DEBUG_DATA_CLEAR_HW_BREAKPOINT;
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//
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// Command data for DEBUG_COMMAND_SET_SW_BREAKPOINT
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//
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typedef struct {
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UINT64 Address;
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} DEBUG_DATA_SET_SW_BREAKPOINT;
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//
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// Response data for DEBUG_COMMAND_SET_SW_BREAKPOINT
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//
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typedef struct {
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UINT8 OriginalData;
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} DEBUG_DATA_RESPONSE_SET_SW_BREAKPOINT;
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//
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// Command data for DEBUG_COMMAND_CLEAR_SW_BREAKPOINT
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//
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typedef DEBUG_DATA_SET_SW_BREAKPOINT DEBUG_DATA_CLEAR_SW_BREAKPOINT;
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//
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// Command data for DEBUG_COMMAND_READ_MEMORY_XX
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//
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typedef struct {
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UINT64 Address;
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UINT16 Count;
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} DEBUG_DATA_READ_MEMORY_8;
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typedef DEBUG_DATA_READ_MEMORY_8 DEBUG_DATA_READ_MEMORY_16;
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typedef DEBUG_DATA_READ_MEMORY_8 DEBUG_DATA_READ_MEMORY_32;
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typedef DEBUG_DATA_READ_MEMORY_8 DEBUG_DATA_READ_MEMORY_64;
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//
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// Command data for DEBUG_COMMAND_WRITE_MEMORY_XX
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//
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typedef struct {
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UINT64 Address;
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UINT16 Count;
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UINT8 Data; // The actual length for this field is decided by Width x Count
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} DEBUG_DATA_WRITE_MEMORY_8;
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typedef DEBUG_DATA_WRITE_MEMORY_8 DEBUG_DATA_WRITE_MEMORY_16;
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typedef DEBUG_DATA_WRITE_MEMORY_8 DEBUG_DATA_WRITE_MEMORY_32;
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typedef DEBUG_DATA_WRITE_MEMORY_8 DEBUG_DATA_WRITE_MEMORY_64;
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//
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// Command data for DEBUG_COMMAND_READ_IO
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//
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typedef struct {
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UINT16 Port;
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UINT8 Width;
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} DEBUG_DATA_READ_IO;
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//
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// Response data for DEBUG_COMMAND_READ_IO
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//
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typedef struct {
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UINT8 Data; // The actual length of this structure will be adjusted according to the Width field
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} DEBUG_DATA_RESPONSE_READ_IO;
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//
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// Command data for DEBUG_COMMAND_WRITE_IO
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//
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typedef struct {
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UINT16 Port;
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UINT8 Width;
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UINT8 Data; // The actual length of this structure will be adjusted according to the Width field
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} DEBUG_DATA_WRITE_IO;
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//
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// Command data for DEBUG_COMMAND_READ_REGISTER
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//
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typedef struct {
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UINT8 Index; // defined as DEBUG_DEFINITION_REGISTER_XX
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UINT8 Offset:4;
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UINT8 Length:4;
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} DEBUG_DATA_READ_REGISTER;
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//
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// Command data for DEBUG_COMMAND_WRITE_REGISTER
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//
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typedef struct {
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UINT8 Index; // defined as DEBUG_DEFINITION_REGISTER_XX
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UINT8 Offset:4;
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UINT8 Length:4;
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UINT64 Value;
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} DEBUG_DATA_WRITE_REGISTER;
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//
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// Command data for DEBUG_COMMAND_READ_MSR
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//
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typedef struct {
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UINT32 Index;
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} DEBUG_DATA_READ_MSR;
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//
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// Response data for DEBUG_COMMAND_READ_MSR
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//
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typedef struct {
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UINT64 Value;
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} DEBUG_DATA_RESPONSE_READ_MSR;
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//
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// Command data for DEBUG_COMMAND_WRITE_MSR
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//
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typedef struct {
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UINT32 Index;
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UINT64 Value;
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} DEBUG_DATA_WRITE_MSR;
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//
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// Command data for DEBUG_COMMAND_READ_REGISTER_GROUP
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//
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typedef struct {
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// For possible values, refer to the definition for DEBUG_DEFINITION_REGISTER_GROUP_XXX (in another .h file as it is architecture specific)
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UINT8 Index;
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} DEBUG_DATA_READ_REGISTER_GROUP;
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//
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// Response data for DEBUG_COMMAND_GET_REVISION
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//
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typedef struct {
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UINT32 Revision;
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UINT32 Capabilities;
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} DEBUG_DATA_RESPONSE_GET_REVISION;
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//
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// Response data for DEBUG_COMMAND_GET_EXCEPTION
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//
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typedef struct {
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UINT8 ExceptionNum;
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UINT64 ExceptionData;
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} DEBUG_DATA_RESPONSE_GET_EXCEPTION;
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typedef struct {
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UINT8 DRn; // The index of DR register which to be used as temporary breakpoint
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} DEBUG_DATA_STEP_OVER;
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//
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// Command data for DEBUG_COMMAND_SET_DEBUG_FLAG
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//
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typedef struct {
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UINT32 DebugFlag; // The index of DR register which to be used as temporary breakpoint
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} DEBUG_DATA_SET_DEBUG_FLAG;
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//
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// Command data for DEBUG_COMMAND_SET_VIEWPOINT
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// If viewpoint is changed successfully, DEBUG_COMMAND_OK will be returned.
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// If viewpoint is not availabe, DEBUG_COMMAND_NOT_SUPPORTED will be returned.
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//
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typedef struct {
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UINT32 ViewPoint; // The index of viewpoint will be set
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} DEBUG_DATA_SET_VIEWPOINT;
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//
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// Response data for DEBUG_COMMAND_GET_VIEWPOINT
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//
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typedef struct {
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UINT32 ViewPoint; // The index of viewpoint will be returned
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} DEBUG_DATA_RESPONSE_GET_VIEWPOINT;
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#pragma pack()
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#define DEBUG_PACKET_CONSTRUCTOR_WITH_NO_DATA(DebugPacket,ShortCommandType) \
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((DEBUG_COMMAND_HEADER *)DebugPacket)->StartSymbol = DEBUG_STARTING_SYMBOL_NORMAL; \
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((DEBUG_COMMAND_HEADER *)DebugPacket)->Command = DEBUG_COMMAND_##ShortCommandType; \
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((DEBUG_COMMAND_HEADER *)DebugPacket)->DataLength = 0;
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#define DEBUG_PACKET_CONSTRUCTOR_WITH_DATA(DebugPacket,ShortCommandType, DebugPacketDataPointer, PacketLength) \
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((DEBUG_COMMAND_HEADER *)DebugPacket)->StartSymbol = DEBUG_STARTING_SYMBOL_NORMAL; \
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((DEBUG_COMMAND_HEADER *)DebugPacket)->Command = DEBUG_COMMAND_##ShortCommandType; \
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((DEBUG_COMMAND_HEADER *)DebugPacket)->DataLength = sizeof (DEBUG_DATA_##ShortCommandType); \
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*DebugPacketDataPointer = (DEBUG_DATA_##ShortCommandType *)((DEBUG_COMMAND_HEADER *)DebugPacket+1); \
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*PacketLength = sizeof (DEBUG_COMMAND_HEADER) + sizeof (DEBUG_DATA_##ShortCommandType);
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#endif
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