1 | /* $Id: DBGCRemoteKd.cpp 86108 2020-09-13 08:37:06Z vboxsync $ */
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2 | /** @file
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3 | * DBGC - Debugger Console, Windows Kd Remote Stub.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2020 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 |
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19 | /*********************************************************************************************************************************
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20 | * Header Files *
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21 | *********************************************************************************************************************************/
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22 | #include <VBox/dbg.h>
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23 | #include <VBox/vmm/dbgf.h>
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24 | #include <VBox/vmm/vmapi.h> /* VMR3GetVM() */
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25 | #include <VBox/vmm/hm.h> /* HMR3IsEnabled */
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26 | #include <VBox/vmm/nem.h> /* NEMR3IsEnabled */
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27 | #include <iprt/assertcompile.h>
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28 | #include <iprt/cdefs.h>
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29 | #include <iprt/err.h>
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30 | #include <iprt/list.h>
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31 | #include <iprt/mem.h>
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32 | #include <iprt/sg.h>
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33 | #include <iprt/string.h>
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34 | #include <iprt/time.h>
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35 | #include <iprt/x86.h>
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36 | #include <iprt/formats/pecoff.h>
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37 | #include <iprt/formats/mz.h>
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38 |
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39 | #include <stdlib.h>
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40 |
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41 | #include "DBGCInternal.h"
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42 |
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43 |
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44 | /*********************************************************************************************************************************
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45 | * Defined Constants And Macros *
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46 | *********************************************************************************************************************************/
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47 |
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48 | /** Number of milliseconds we wait for new data to arrive when a new packet was detected. */
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49 | #define DBGC_KD_RECV_TIMEOUT_MS UINT32_C(1000)
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50 |
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51 | /** NT status code - Success. */
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52 | #define NTSTATUS_SUCCESS 0
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53 | /** NT status code - operation unsuccesful. */
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54 | #define NTSTATUS_UNSUCCESSFUL UINT32_C(0xc0000001)
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55 | /** NT status code - operation not implemented. */
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56 | #define NTSTATUS_NOT_IMPLEMENTED UINT32_C(0xc0000002)
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57 |
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58 | /*********************************************************************************************************************************
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59 | * Structures and Typedefs *
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60 | *********************************************************************************************************************************/
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61 |
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62 | /**
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63 | * KD packet header as sent over the wire.
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64 | */
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65 | typedef struct KDPACKETHDR
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66 | {
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67 | /** Packet signature (leader) - defines the type of packet. */
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68 | uint32_t u32Signature;
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69 | /** Packet (sub) type. */
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70 | uint16_t u16SubType;
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71 | /** Size of the packet body in bytes.*/
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72 | uint16_t cbBody;
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73 | /** Packet ID. */
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74 | uint32_t idPacket;
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75 | /** Checksum of the packet body. */
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76 | uint32_t u32ChkSum;
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77 | } KDPACKETHDR;
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78 | AssertCompileSize(KDPACKETHDR, 16);
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79 | /** Pointer to a packet header. */
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80 | typedef KDPACKETHDR *PKDPACKETHDR;
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81 | /** Pointer to a const packet header. */
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82 | typedef const KDPACKETHDR *PCKDPACKETHDR;
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83 |
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84 | /** Signature for a data packet. */
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85 | #define KD_PACKET_HDR_SIGNATURE_DATA UINT32_C(0x30303030)
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86 | /** First byte for a data packet header. */
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87 | #define KD_PACKET_HDR_SIGNATURE_DATA_BYTE 0x30
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88 | /** Signature for a control packet. */
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89 | #define KD_PACKET_HDR_SIGNATURE_CONTROL UINT32_C(0x69696969)
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90 | /** First byte for a control packet header. */
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91 | #define KD_PACKET_HDR_SIGNATURE_CONTROL_BYTE 0x69
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92 | /** Signature for a breakin packet. */
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93 | #define KD_PACKET_HDR_SIGNATURE_BREAKIN UINT32_C(0x62626262)
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94 | /** First byte for a breakin packet header. */
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95 | #define KD_PACKET_HDR_SIGNATURE_BREAKIN_BYTE 0x62
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96 |
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97 | /** @name Packet sub types.
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98 | * @{ */
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99 | #define KD_PACKET_HDR_SUB_TYPE_STATE_CHANGE32 UINT16_C(1)
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100 | #define KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE UINT16_C(2)
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101 | #define KD_PACKET_HDR_SUB_TYPE_DEBUG_IO UINT16_C(3)
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102 | #define KD_PACKET_HDR_SUB_TYPE_ACKNOWLEDGE UINT16_C(4)
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103 | #define KD_PACKET_HDR_SUB_TYPE_RESEND UINT16_C(5)
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104 | #define KD_PACKET_HDR_SUB_TYPE_RESET UINT16_C(6)
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105 | #define KD_PACKET_HDR_SUB_TYPE_STATE_CHANGE64 UINT16_C(7)
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106 | #define KD_PACKET_HDR_SUB_TYPE_POLL_BREAKIN UINT16_C(8)
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107 | #define KD_PACKET_HDR_SUB_TYPE_TRACE_IO UINT16_C(9)
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108 | #define KD_PACKET_HDR_SUB_TYPE_CONTROL_REQUEST UINT16_C(10)
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109 | #define KD_PACKET_HDR_SUB_TYPE_FILE_IO UINT16_C(11)
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110 | #define KD_PACKET_HDR_SUB_TYPE_MAX UINT16_C(12)
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111 | /** @} */
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112 |
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113 | /** Initial packet ID value. */
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114 | #define KD_PACKET_HDR_ID_INITIAL UINT32_C(0x80800800)
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115 | /** Packet ID value after a resync. */
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116 | #define KD_PACKET_HDR_ID_RESET UINT32_C(0x80800000)
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117 |
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118 | /** Trailing byte of a packet. */
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119 | #define KD_PACKET_TRAILING_BYTE 0xaa
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120 |
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121 |
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122 | /** Maximum number of parameters in the exception record. */
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123 | #define KDPACKETEXCP_PARMS_MAX 15
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124 |
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125 | /**
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126 | * 64bit exception record.
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127 | */
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128 | typedef struct KDPACKETEXCP64
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129 | {
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130 | /** The exception code identifying the excpetion. */
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131 | uint32_t u32ExcpCode;
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132 | /** Flags associated with the exception. */
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133 | uint32_t u32ExcpFlags;
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134 | /** Pointer to a chained exception record. */
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135 | uint64_t u64PtrExcpRecNested;
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136 | /** Address where the exception occurred. */
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137 | uint64_t u64PtrExcpAddr;
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138 | /** Number of parameters in the exception information array. */
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139 | uint32_t cExcpParms;
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140 | /** Alignment. */
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141 | uint32_t u32Alignment;
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142 | /** Exception parameters array. */
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143 | uint64_t au64ExcpParms[KDPACKETEXCP_PARMS_MAX];
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144 | } KDPACKETEXCP64;
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145 | AssertCompileSize(KDPACKETEXCP64, 152);
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146 | /** Pointer to an exception record. */
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147 | typedef KDPACKETEXCP64 *PKDPACKETEXCP64;
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148 | /** Pointer to a const exception record. */
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149 | typedef const KDPACKETEXCP64 *PCKDPACKETEXCP64;
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150 |
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151 |
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152 | /**
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153 | * amd64 NT context structure.
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154 | */
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155 | typedef struct NTCONTEXT64
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156 | {
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157 | /** The P[1-6]Home members. */
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158 | uint64_t au64PHome[6];
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159 | /** Context flags indicating the valid bits, see NTCONTEXT_F_XXX. */
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160 | uint32_t fContext;
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161 | /** MXCSR register. */
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162 | uint32_t u32RegMxCsr;
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163 | /** CS selector. */
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164 | uint16_t u16SegCs;
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165 | /** DS selector. */
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166 | uint16_t u16SegDs;
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167 | /** ES selector. */
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168 | uint16_t u16SegEs;
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169 | /** FS selector. */
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170 | uint16_t u16SegFs;
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171 | /** GS selector. */
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172 | uint16_t u16SegGs;
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173 | /** SS selector. */
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174 | uint16_t u16SegSs;
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175 | /** EFlags register. */
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176 | uint32_t u32RegEflags;
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177 | /** DR0 register. */
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178 | uint64_t u64RegDr0;
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179 | /** DR1 register. */
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180 | uint64_t u64RegDr1;
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181 | /** DR2 register. */
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182 | uint64_t u64RegDr2;
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183 | /** DR3 register. */
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184 | uint64_t u64RegDr3;
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185 | /** DR6 register. */
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186 | uint64_t u64RegDr6;
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187 | /** DR7 register. */
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188 | uint64_t u64RegDr7;
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189 | /** RAX register. */
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190 | uint64_t u64RegRax;
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191 | /** RCX register. */
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192 | uint64_t u64RegRcx;
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193 | /** RDX register. */
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194 | uint64_t u64RegRdx;
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195 | /** RBX register. */
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196 | uint64_t u64RegRbx;
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197 | /** RSP register. */
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198 | uint64_t u64RegRsp;
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199 | /** RBP register. */
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200 | uint64_t u64RegRbp;
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201 | /** RSI register. */
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202 | uint64_t u64RegRsi;
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203 | /** RDI register. */
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204 | uint64_t u64RegRdi;
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205 | /** R8 register. */
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206 | uint64_t u64RegR8;
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207 | /** R9 register. */
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208 | uint64_t u64RegR9;
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209 | /** R10 register. */
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210 | uint64_t u64RegR10;
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211 | /** R11 register. */
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212 | uint64_t u64RegR11;
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213 | /** R12 register. */
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214 | uint64_t u64RegR12;
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215 | /** R13 register. */
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216 | uint64_t u64RegR13;
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217 | /** R14 register. */
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218 | uint64_t u64RegR14;
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219 | /** R15 register. */
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220 | uint64_t u64RegR15;
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221 | /** RIP register. */
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222 | uint64_t u64RegRip;
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223 | /** Extended floating point save area. */
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224 | X86FXSTATE FxSave;
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225 | /** AVX(?) vector registers. */
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226 | RTUINT128U aRegsVec[26];
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227 | /** Vector control register. */
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228 | uint64_t u64RegVecCtrl;
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229 | /** Debug control. */
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230 | uint64_t u64DbgCtrl;
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231 | /** @todo */
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232 | uint64_t u64LastBrToRip;
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233 | uint64_t u64LastBrFromRip;
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234 | uint64_t u64LastExcpToRip;
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235 | uint64_t u64LastExcpFromRip;
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236 | } NTCONTEXT64;
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237 | AssertCompileSize(NTCONTEXT64, 1232);
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238 | AssertCompileMemberOffset(NTCONTEXT64, FxSave, 0x100);
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239 | AssertCompileMemberOffset(NTCONTEXT64, aRegsVec[0], 0x300);
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240 | /** Pointer to an amd64 NT context. */
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241 | typedef NTCONTEXT64 *PNTCONTEXT64;
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242 | /** Pointer to a const amd64 NT context. */
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243 | typedef const NTCONTEXT64 *PCNTCONTEXT64;
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244 |
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245 |
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246 | /**
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247 | * [GI]DT descriptor.
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248 | */
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249 | typedef struct NTKCONTEXTDESC64
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250 | {
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251 | /** Alignment. */
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252 | uint16_t au16Alignment[3];
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253 | /** Limit. */
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254 | uint16_t u16Limit;
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255 | /** Base address. */
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256 | uint64_t u64PtrBase;
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257 | } NTKCONTEXTDESC64;
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258 | AssertCompileSize(NTKCONTEXTDESC64, 2 * 8);
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259 | /** Pointer to an amd64 NT context. */
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260 | typedef NTKCONTEXTDESC64 *PNTKCONTEXTDESC64;
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261 | /** Pointer to a const amd64 NT context. */
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262 | typedef const NTKCONTEXTDESC64 *PCNTKCONTEXTDESC64;
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263 |
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264 |
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265 | /**
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266 | * Kernel context as queried by KD_PACKET_MANIPULATE_REQ_READ_CTRL_SPACE
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267 | */
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268 | typedef struct NTKCONTEXT64
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269 | {
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270 | /** CR0 register. */
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271 | uint64_t u64RegCr0;
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272 | /** CR2 register. */
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273 | uint64_t u64RegCr2;
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274 | /** CR3 register. */
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275 | uint64_t u64RegCr3;
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276 | /** CR4 register. */
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277 | uint64_t u64RegCr4;
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278 | /** DR0 register. */
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279 | uint64_t u64RegDr0;
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280 | /** DR1 register. */
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281 | uint64_t u64RegDr1;
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282 | /** DR2 register. */
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283 | uint64_t u64RegDr2;
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284 | /** DR3 register. */
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285 | uint64_t u64RegDr3;
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286 | /** DR6 register. */
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287 | uint64_t u64RegDr6;
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288 | /** DR7 register. */
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289 | uint64_t u64RegDr7;
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290 | /** GDTR. */
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291 | NTKCONTEXTDESC64 Gdtr;
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292 | /** IDTR. */
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293 | NTKCONTEXTDESC64 Idtr;
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294 | /** TR register. */
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295 | uint16_t u16RegTr;
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296 | /** LDTR register. */
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297 | uint16_t u16RegLdtr;
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298 | /** MXCSR register. */
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299 | uint32_t u32RegMxCsr;
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300 | /** Debug control. */
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301 | uint64_t u64DbgCtrl;
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302 | /** @todo */
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303 | uint64_t u64LastBrToRip;
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304 | uint64_t u64LastBrFromRip;
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305 | uint64_t u64LastExcpToRip;
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306 | uint64_t u64LastExcpFromRip;
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307 | /** CR8 register. */
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308 | uint64_t u64RegCr8;
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309 | /** GS base MSR register. */
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310 | uint64_t u64MsrGsBase;
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311 | /** Kernel GS base MSR register. */
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312 | uint64_t u64MsrKernelGsBase;
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313 | /** STAR MSR register. */
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314 | uint64_t u64MsrStar;
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315 | /** LSTAR MSR register. */
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316 | uint64_t u64MsrLstar;
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317 | /** CSTAR MSR register. */
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318 | uint64_t u64MsrCstar;
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319 | /** SFMASK MSR register. */
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320 | uint64_t u64MsrSfMask;
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321 | /** XCR0 register. */
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322 | uint64_t u64RegXcr0;
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323 | /** Standard context. */
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324 | NTCONTEXT64 Ctx;
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325 | } NTKCONTEXT64;
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326 | /** Pointer to an amd64 NT context. */
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327 | typedef NTKCONTEXT64 *PNTKCONTEXT64;
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328 | /** Pointer to a const amd64 NT context. */
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329 | typedef const NTKCONTEXT64 *PCNTKCONTEXT64;
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330 |
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331 |
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332 | /** x86 context. */
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333 | #define NTCONTEXT_F_X86 UINT32_C(0x00010000)
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334 | /** AMD64 context. */
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335 | #define NTCONTEXT_F_AMD64 UINT32_C(0x00100000)
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336 | /** Control registers valid (CS, (R)SP, (R)IP, FLAGS and BP). */
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337 | #define NTCONTEXT_F_CONTROL RT_BIT_32(0)
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338 | /** Integer registers valid. */
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339 | #define NTCONTEXT_F_INTEGER RT_BIT_32(1)
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340 | /** Segment registers valid. */
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341 | #define NTCONTEXT_F_SEGMENTS RT_BIT_32(2)
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342 | /** Floating point registers valid. */
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343 | #define NTCONTEXT_F_FLOATING_POINT RT_BIT_32(3)
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344 | /** Debug registers valid. */
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345 | #define NTCONTEXT_F_DEBUG RT_BIT_32(4)
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346 | /** Extended registers valid (x86 only). */
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347 | #define NTCONTEXT_F_EXTENDED RT_BIT_32(5)
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348 | /** Full x86 context valid. */
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349 | #define NTCONTEXT32_F_FULL (NTCONTEXT_F_X86 | NTCONTEXT_F_CONTROL | NTCONTEXT_F_INTEGER | NTCONTEXT_F_SEGMENTS)
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350 | /** Full amd64 context valid. */
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351 | #define NTCONTEXT64_F_FULL (NTCONTEXT_F_AMD64 | NTCONTEXT_F_CONTROL | NTCONTEXT_F_INTEGER | NTCONTEXT_F_SEGMENTS)
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352 |
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353 |
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354 | /**
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355 | * 32bit exception record.
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356 | */
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357 | typedef struct KDPACKETEXCP32
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358 | {
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359 | /** The exception code identifying the excpetion. */
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360 | uint32_t u32ExcpCode;
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361 | /** Flags associated with the exception. */
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362 | uint32_t u32ExcpFlags;
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363 | /** Pointer to a chained exception record. */
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364 | uint32_t u32PtrExcpRecNested;
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365 | /** Address where the exception occurred. */
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366 | uint32_t u32PtrExcpAddr;
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367 | /** Number of parameters in the exception information array. */
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368 | uint32_t cExcpParms;
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369 | /** Exception parameters array. */
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370 | uint32_t au32ExcpParms[KDPACKETEXCP_PARMS_MAX];
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371 | } KDPACKETEXCP32;
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372 | AssertCompileSize(KDPACKETEXCP32, 80);
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373 | /** Pointer to an exception record. */
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374 | typedef KDPACKETEXCP32 *PKDPACKETEXCP32;
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375 | /** Pointer to a const exception record. */
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376 | typedef const KDPACKETEXCP32 *PCKDPACKETEXCP32;
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377 |
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378 |
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379 | /** @name Exception codes.
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380 | * @{ */
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381 | /** A breakpoint was hit. */
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382 | #define KD_PACKET_EXCP_CODE_BKPT UINT32_C(0x80000003)
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383 | /** An instruction was single stepped. */
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384 | #define KD_PACKET_EXCP_CODE_SINGLE_STEP UINT32_C(0x80000004)
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385 | /** @} */
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386 |
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387 |
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388 | /** Maximum number of bytes in the instruction stream. */
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389 | #define KD_PACKET_CTRL_REPORT_INSN_STREAM_MAX 16
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390 |
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391 | /**
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392 | * 64bit control report record.
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393 | */
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394 | typedef struct KDPACKETCTRLREPORT64
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395 | {
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396 | /** Value of DR6. */
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397 | uint64_t u64RegDr6;
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398 | /** Value of DR7. */
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399 | uint64_t u64RegDr7;
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400 | /** EFLAGS. */
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401 | uint32_t u32RegEflags;
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402 | /** Number of instruction bytes in the instruction stream. */
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403 | uint16_t cbInsnStream;
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404 | /** Report flags. */
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405 | uint16_t fFlags;
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406 | /** The instruction stream. */
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407 | uint8_t abInsn[KD_PACKET_CTRL_REPORT_INSN_STREAM_MAX];
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408 | /** CS selector. */
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409 | uint16_t u16SegCs;
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410 | /** DS selector. */
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411 | uint16_t u16SegDs;
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412 | /** ES selector. */
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413 | uint16_t u16SegEs;
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414 | /** FS selector. */
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415 | uint16_t u16SegFs;
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416 | } KDPACKETCTRLREPORT64;
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417 | AssertCompileSize(KDPACKETCTRLREPORT64, 2 * 8 + 4 + 2 * 2 + 16 + 4 * 2);
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418 | /** Pointer to a control report record. */
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419 | typedef KDPACKETCTRLREPORT64 *PKDPACKETCTRLREPORT64;
|
---|
420 | /** Pointer to a const control report record. */
|
---|
421 | typedef const KDPACKETCTRLREPORT64 *PCKDPACKETCTRLREPORT64;
|
---|
422 |
|
---|
423 |
|
---|
424 | /**
|
---|
425 | * 64bit state change packet body.
|
---|
426 | */
|
---|
427 | typedef struct KDPACKETSTATECHANGE64
|
---|
428 | {
|
---|
429 | /** The new state. */
|
---|
430 | uint32_t u32StateNew;
|
---|
431 | /** The processor level. */
|
---|
432 | uint16_t u16CpuLvl;
|
---|
433 | /** The processor ID generating the state change. */
|
---|
434 | uint16_t idCpu;
|
---|
435 | /** Number of processors in the system. */
|
---|
436 | uint32_t cCpus;
|
---|
437 | /** Alignment. */
|
---|
438 | uint32_t u32Alignment;
|
---|
439 | /** The thread ID currently executing when the state change occurred. */
|
---|
440 | uint64_t idThread;
|
---|
441 | /** Program counter of the thread. */
|
---|
442 | uint64_t u64RipThread;
|
---|
443 | /** Data based on the state. */
|
---|
444 | union
|
---|
445 | {
|
---|
446 | /** Exception occurred data. */
|
---|
447 | struct
|
---|
448 | {
|
---|
449 | /** The exception record. */
|
---|
450 | KDPACKETEXCP64 ExcpRec;
|
---|
451 | /** First chance(?). */
|
---|
452 | uint32_t u32FirstChance;
|
---|
453 | } Exception;
|
---|
454 | } u;
|
---|
455 | /** The control report */
|
---|
456 | union
|
---|
457 | {
|
---|
458 | /** AMD64 control report. */
|
---|
459 | KDPACKETCTRLREPORT64 Amd64;
|
---|
460 | } uCtrlReport;
|
---|
461 | } KDPACKETSTATECHANGE64;
|
---|
462 | //AssertCompileSize(KDPACKETSTATECHANGE64, 4 + 2 * 2 + 2 * 4 + 2 * 8 + sizeof(KDPACKETEXCP64) + 4 + sizeof(KDPACKETCTRLREPORT64));
|
---|
463 | /** Pointer to a 64bit state change packet body. */
|
---|
464 | typedef KDPACKETSTATECHANGE64 *PKDPACKETSTATECHANGE64;
|
---|
465 | /** Pointer to a const 64bit state change packet body. */
|
---|
466 | typedef const KDPACKETSTATECHANGE64 *PCKDPACKETSTATECHANGE64;
|
---|
467 |
|
---|
468 |
|
---|
469 | /** @name State change state types.
|
---|
470 | * @{ */
|
---|
471 | /** Minimum state change type. */
|
---|
472 | #define KD_PACKET_STATE_CHANGE_MIN UINT32_C(0x00003030)
|
---|
473 | /** An exception occured. */
|
---|
474 | #define KD_PACKET_STATE_CHANGE_EXCEPTION KD_PACKET_STATE_CHANGE_MIN
|
---|
475 | /** Symbols were loaded(?). */
|
---|
476 | #define KD_PACKET_STATE_CHANGE_LOAD_SYMBOLS UINT32_C(0x00003031)
|
---|
477 | /** Command string (custom command was executed?). */
|
---|
478 | #define KD_PACKET_STATE_CHANGE_CMD_STRING UINT32_C(0x00003032)
|
---|
479 | /** Maximum state change type (exclusive). */
|
---|
480 | #define KD_PACKET_STATE_CHANGE_MAX UINT32_C(0x00003033)
|
---|
481 | /** @} */
|
---|
482 |
|
---|
483 |
|
---|
484 | /**
|
---|
485 | * 64bit get version manipulate payload.
|
---|
486 | */
|
---|
487 | typedef struct KDPACKETMANIPULATE_GETVERSION64
|
---|
488 | {
|
---|
489 | /** Major version. */
|
---|
490 | uint16_t u16VersMaj;
|
---|
491 | /** Minor version. */
|
---|
492 | uint16_t u16VersMin;
|
---|
493 | /** Protocol version. */
|
---|
494 | uint8_t u8VersProtocol;
|
---|
495 | /** KD secondary version. */
|
---|
496 | uint8_t u8VersKdSecondary;
|
---|
497 | /** Flags. */
|
---|
498 | uint16_t fFlags;
|
---|
499 | /** Machine type. */
|
---|
500 | uint16_t u16MachineType;
|
---|
501 | /** Maximum packet type. */
|
---|
502 | uint8_t u8MaxPktType;
|
---|
503 | /** Maximum state change */
|
---|
504 | uint8_t u8MaxStateChange;
|
---|
505 | /** Maximum manipulate request ID. */
|
---|
506 | uint8_t u8MaxManipulate;
|
---|
507 | /** Some simulation flag. */
|
---|
508 | uint8_t u8Simulation;
|
---|
509 | /** Padding. */
|
---|
510 | uint16_t u16Padding;
|
---|
511 | /** Kernel base. */
|
---|
512 | uint64_t u64PtrKernBase;
|
---|
513 | /** Pointer of the loaded module list head. */
|
---|
514 | uint64_t u64PtrPsLoadedModuleList;
|
---|
515 | /** Pointer of the debugger data list. */
|
---|
516 | uint64_t u64PtrDebuggerDataList;
|
---|
517 | } KDPACKETMANIPULATE_GETVERSION64;
|
---|
518 | AssertCompileSize(KDPACKETMANIPULATE_GETVERSION64, 8 * 2 + 3 * 8);
|
---|
519 | /** Pointer to a 64bit get version manipulate payload. */
|
---|
520 | typedef KDPACKETMANIPULATE_GETVERSION64 *PKDPACKETMANIPULATE_GETVERSION64;
|
---|
521 | /** Pointer to a const 64bit get version manipulate payload. */
|
---|
522 | typedef const KDPACKETMANIPULATE_GETVERSION64 *PCKDPACKETMANIPULATE_GETVERSION64;
|
---|
523 |
|
---|
524 |
|
---|
525 | /**
|
---|
526 | * 64bit memory transfer manipulate payload.
|
---|
527 | */
|
---|
528 | typedef struct KDPACKETMANIPULATE_XFERMEM64
|
---|
529 | {
|
---|
530 | /** Target base address. */
|
---|
531 | uint64_t u64PtrTarget;
|
---|
532 | /** Requested number of bytes to transfer*/
|
---|
533 | uint32_t cbXferReq;
|
---|
534 | /** Number of bytes actually transferred (response). */
|
---|
535 | uint32_t cbXfered;
|
---|
536 | /** Some padding?. */
|
---|
537 | uint64_t au64Pad[3];
|
---|
538 | } KDPACKETMANIPULATE_XFERMEM64;
|
---|
539 | AssertCompileSize(KDPACKETMANIPULATE_XFERMEM64, 4 * 8 + 2 * 4);
|
---|
540 | /** Pointer to a 64bit memory transfer manipulate payload. */
|
---|
541 | typedef KDPACKETMANIPULATE_XFERMEM64 *PKDPACKETMANIPULATE_XFERMEM64;
|
---|
542 | /** Pointer to a const 64bit memory transfer manipulate payload. */
|
---|
543 | typedef const KDPACKETMANIPULATE_XFERMEM64 *PCKDPACKETMANIPULATE_XFERMEM64;
|
---|
544 |
|
---|
545 |
|
---|
546 | /**
|
---|
547 | * 64bit control space transfer manipulate payload.
|
---|
548 | *
|
---|
549 | * @note Same layout as the memory transfer but the pointer has a different meaning so
|
---|
550 | * we moved it into a separate request structure.
|
---|
551 | */
|
---|
552 | typedef struct KDPACKETMANIPULATE_XFERCTRLSPACE64
|
---|
553 | {
|
---|
554 | /** Identifier of the item to transfer in the control space. */
|
---|
555 | uint64_t u64IdXfer;
|
---|
556 | /** Requested number of bytes to transfer*/
|
---|
557 | uint32_t cbXferReq;
|
---|
558 | /** Number of bytes actually transferred (response). */
|
---|
559 | uint32_t cbXfered;
|
---|
560 | /** Some padding?. */
|
---|
561 | uint64_t au64Pad[3];
|
---|
562 | } KDPACKETMANIPULATE_XFERCTRLSPACE64;
|
---|
563 | AssertCompileSize(KDPACKETMANIPULATE_XFERCTRLSPACE64, 4 * 8 + 2 * 4);
|
---|
564 | /** Pointer to a 64bit memory transfer manipulate payload. */
|
---|
565 | typedef KDPACKETMANIPULATE_XFERCTRLSPACE64 *PKDPACKETMANIPULATE_XFERCTRLSPACE64;
|
---|
566 | /** Pointer to a const 64bit memory transfer manipulate payload. */
|
---|
567 | typedef const KDPACKETMANIPULATE_XFERCTRLSPACE64 *PCKDPACKETMANIPULATE_XFERCTRLSPACE64;
|
---|
568 |
|
---|
569 |
|
---|
570 | /** @name Known control space identifiers.
|
---|
571 | * @{ */
|
---|
572 | /** Read/Write KPCR address. */
|
---|
573 | #define KD_PACKET_MANIPULATE64_CTRL_SPACE_ID_KPCR UINT64_C(0)
|
---|
574 | /** Read/Write KPCRB address. */
|
---|
575 | #define KD_PACKET_MANIPULATE64_CTRL_SPACE_ID_KPCRB UINT64_C(1)
|
---|
576 | /** Read/Write Kernel context. */
|
---|
577 | #define KD_PACKET_MANIPULATE64_CTRL_SPACE_ID_KCTX UINT64_C(2)
|
---|
578 | /** Read/Write current kernel thread. */
|
---|
579 | #define KD_PACKET_MANIPULATE64_CTRL_SPACE_ID_KTHRD UINT64_C(3)
|
---|
580 | /** @} */
|
---|
581 |
|
---|
582 |
|
---|
583 | /**
|
---|
584 | * 64bit restore breakpoint manipulate payload.
|
---|
585 | */
|
---|
586 | typedef struct KDPACKETMANIPULATE_RESTOREBKPT64
|
---|
587 | {
|
---|
588 | /** The breakpoint handle to restore. */
|
---|
589 | uint32_t u32HndBkpt;
|
---|
590 | } KDPACKETMANIPULATE_RESTOREBKPT64;
|
---|
591 | AssertCompileSize(KDPACKETMANIPULATE_RESTOREBKPT64, 4);
|
---|
592 | /** Pointer to a 64bit restore breakpoint manipulate payload. */
|
---|
593 | typedef KDPACKETMANIPULATE_RESTOREBKPT64 *PKDPACKETMANIPULATE_RESTOREBKPT64;
|
---|
594 | /** Pointer to a const 64bit restore breakpoint manipulate payload. */
|
---|
595 | typedef const KDPACKETMANIPULATE_RESTOREBKPT64 *PCKDPACKETMANIPULATE_RESTOREBKPT64;
|
---|
596 |
|
---|
597 |
|
---|
598 | /**
|
---|
599 | * context extended manipulate payload.
|
---|
600 | */
|
---|
601 | typedef struct KDPACKETMANIPULATE_CONTEXTEX
|
---|
602 | {
|
---|
603 | /** Where to start copying the context. */
|
---|
604 | uint32_t offStart;
|
---|
605 | /** Number of bytes to transfer. */
|
---|
606 | uint32_t cbXfer;
|
---|
607 | /** Number of bytes actually transfered. */
|
---|
608 | uint32_t cbXfered;
|
---|
609 | } KDPACKETMANIPULATE_CONTEXTEX;
|
---|
610 | AssertCompileSize(KDPACKETMANIPULATE_CONTEXTEX, 3 * 4);
|
---|
611 | /** Pointer to a context extended manipulate payload. */
|
---|
612 | typedef KDPACKETMANIPULATE_CONTEXTEX *PKDPACKETMANIPULATE_CONTEXTEX;
|
---|
613 | /** Pointer to a const context extended manipulate payload. */
|
---|
614 | typedef const KDPACKETMANIPULATE_CONTEXTEX *PCKDPACKETMANIPULATE_CONTEXTEX;
|
---|
615 |
|
---|
616 |
|
---|
617 | /**
|
---|
618 | * Manipulate request packet header (Same for 32bit and 64bit).
|
---|
619 | */
|
---|
620 | typedef struct KDPACKETMANIPULATEHDR
|
---|
621 | {
|
---|
622 | /** The request to execute. */
|
---|
623 | uint32_t idReq;
|
---|
624 | /** The processor level to execute the request on. */
|
---|
625 | uint16_t u16CpuLvl;
|
---|
626 | /** The processor ID to execute the request on. */
|
---|
627 | uint16_t idCpu;
|
---|
628 | /** Return status code. */
|
---|
629 | uint32_t u32NtStatus;
|
---|
630 | /** Alignment. */
|
---|
631 | uint32_t u32Alignment;
|
---|
632 | } KDPACKETMANIPULATEHDR;
|
---|
633 | AssertCompileSize(KDPACKETMANIPULATEHDR, 3 * 4 + 2 * 2);
|
---|
634 | /** Pointer to a manipulate request packet header. */
|
---|
635 | typedef KDPACKETMANIPULATEHDR *PKDPACKETMANIPULATEHDR;
|
---|
636 | /** Pointer to a const manipulate request packet header. */
|
---|
637 | typedef const KDPACKETMANIPULATEHDR *PCPKDPACKETMANIPULATEHDR;
|
---|
638 |
|
---|
639 |
|
---|
640 | /**
|
---|
641 | * 64bit manipulate state request packet.
|
---|
642 | */
|
---|
643 | typedef struct KDPACKETMANIPULATE64
|
---|
644 | {
|
---|
645 | /** Header. */
|
---|
646 | KDPACKETMANIPULATEHDR Hdr;
|
---|
647 | /** Request payloads. */
|
---|
648 | union
|
---|
649 | {
|
---|
650 | /** Get Version. */
|
---|
651 | KDPACKETMANIPULATE_GETVERSION64 GetVersion;
|
---|
652 | /** Read/Write memory. */
|
---|
653 | KDPACKETMANIPULATE_XFERMEM64 XferMem;
|
---|
654 | /** Read/Write control space. */
|
---|
655 | KDPACKETMANIPULATE_XFERCTRLSPACE64 XferCtrlSpace;
|
---|
656 | /** Restore breakpoint. */
|
---|
657 | KDPACKETMANIPULATE_RESTOREBKPT64 RestoreBkpt;
|
---|
658 | /** Context extended. */
|
---|
659 | KDPACKETMANIPULATE_CONTEXTEX ContextEx;
|
---|
660 | } u;
|
---|
661 | } KDPACKETMANIPULATE64;
|
---|
662 | /** Pointer to a 64bit manipulate state request packet. */
|
---|
663 | typedef KDPACKETMANIPULATE64 *PKDPACKETMANIPULATE64;
|
---|
664 | /** Pointer to a const 64bit manipulate state request packet. */
|
---|
665 | typedef const KDPACKETMANIPULATE64 *PCKDPACKETMANIPULATE64;
|
---|
666 |
|
---|
667 | /** @name Manipulate requests.
|
---|
668 | * @{ */
|
---|
669 | /** Minimum available request. */
|
---|
670 | #define KD_PACKET_MANIPULATE_REQ_MIN UINT32_C(0x00003130)
|
---|
671 | /** Read virtual memory request. */
|
---|
672 | #define KD_PACKET_MANIPULATE_REQ_READ_VIRT_MEM KD_PACKET_MANIPULATE_REQ_MIN
|
---|
673 | /** Write virtual memory request. */
|
---|
674 | #define KD_PACKET_MANIPULATE_REQ_WRITE_VIRT_MEM UINT32_C(0x00003131)
|
---|
675 | /** Get context request. */
|
---|
676 | #define KD_PACKET_MANIPULATE_REQ_GET_CONTEXT UINT32_C(0x00003132)
|
---|
677 | /** Set context request. */
|
---|
678 | #define KD_PACKET_MANIPULATE_REQ_SET_CONTEXT UINT32_C(0x00003133)
|
---|
679 | /** Write breakpoint request. */
|
---|
680 | #define KD_PACKET_MANIPULATE_REQ_WRITE_BKPT UINT32_C(0x00003134)
|
---|
681 | /** Restore breakpoint request. */
|
---|
682 | #define KD_PACKET_MANIPULATE_REQ_RESTORE_BKPT UINT32_C(0x00003135)
|
---|
683 | /** Continue request. */
|
---|
684 | #define KD_PACKET_MANIPULATE_REQ_CONTINUE UINT32_C(0x00003136)
|
---|
685 | /** Read control space request. */
|
---|
686 | #define KD_PACKET_MANIPULATE_REQ_READ_CTRL_SPACE UINT32_C(0x00003137)
|
---|
687 | /** Write control space request. */
|
---|
688 | #define KD_PACKET_MANIPULATE_REQ_WRITE_CTRL_SPACE UINT32_C(0x00003138)
|
---|
689 | /** Read I/O space request. */
|
---|
690 | #define KD_PACKET_MANIPULATE_REQ_READ_IO_SPACE UINT32_C(0x00003139)
|
---|
691 | /** Write I/O space request. */
|
---|
692 | #define KD_PACKET_MANIPULATE_REQ_WRITE_IO_SPACE UINT32_C(0x0000313a)
|
---|
693 | /** Reboot request. */
|
---|
694 | #define KD_PACKET_MANIPULATE_REQ_REBOOT UINT32_C(0x0000313b)
|
---|
695 | /** continue 2nd version request. */
|
---|
696 | #define KD_PACKET_MANIPULATE_REQ_CONTINUE2 UINT32_C(0x0000313c)
|
---|
697 | /** Read physical memory request. */
|
---|
698 | #define KD_PACKET_MANIPULATE_REQ_READ_PHYS_MEM UINT32_C(0x0000313d)
|
---|
699 | /** Write physical memory request. */
|
---|
700 | #define KD_PACKET_MANIPULATE_REQ_WRITE_PHYS_MEM UINT32_C(0x0000313e)
|
---|
701 | /** Query special calls request. */
|
---|
702 | #define KD_PACKET_MANIPULATE_REQ_QUERY_SPEC_CALLS UINT32_C(0x0000313f)
|
---|
703 | /** Set special calls request. */
|
---|
704 | #define KD_PACKET_MANIPULATE_REQ_SET_SPEC_CALLS UINT32_C(0x00003140)
|
---|
705 | /** Clear special calls request. */
|
---|
706 | #define KD_PACKET_MANIPULATE_REQ_CLEAR_SPEC_CALLS UINT32_C(0x00003141)
|
---|
707 | /** Set internal breakpoint request. */
|
---|
708 | #define KD_PACKET_MANIPULATE_REQ_SET_INTERNAL_BKPT UINT32_C(0x00003142)
|
---|
709 | /** Get internal breakpoint request. */
|
---|
710 | #define KD_PACKET_MANIPULATE_REQ_GET_INTERNAL_BKPT UINT32_C(0x00003143)
|
---|
711 | /** Read I/O space extended request. */
|
---|
712 | #define KD_PACKET_MANIPULATE_REQ_READ_IO_SPACE_EX UINT32_C(0x00003144)
|
---|
713 | /** Write I/O space extended request. */
|
---|
714 | #define KD_PACKET_MANIPULATE_REQ_WRITE_IO_SPACE_EX UINT32_C(0x00003145)
|
---|
715 | /** Get version request. */
|
---|
716 | #define KD_PACKET_MANIPULATE_REQ_GET_VERSION UINT32_C(0x00003146)
|
---|
717 | /** @todo */
|
---|
718 | /** Clear all internal breakpoints request. */
|
---|
719 | #define KD_PACKET_MANIPULATE_REQ_CLEAR_ALL_INTERNAL_BKPT UINT32_C(0x0000315a)
|
---|
720 | /** @todo */
|
---|
721 | /** Get context extended request. */
|
---|
722 | #define KD_PACKET_MANIPULATE_REQ_GET_CONTEXT_EX UINT32_C(0x0000315f)
|
---|
723 | /** @todo */
|
---|
724 | /** Maximum available request (exclusive). */
|
---|
725 | #define KD_PACKET_MANIPULATE_REQ_MAX UINT32_C(0x00003161)
|
---|
726 | /** @} */
|
---|
727 |
|
---|
728 | /**
|
---|
729 | * KD stub receive state.
|
---|
730 | */
|
---|
731 | typedef enum KDRECVSTATE
|
---|
732 | {
|
---|
733 | /** Invalid state. */
|
---|
734 | KDRECVSTATE_INVALID = 0,
|
---|
735 | /** Receiving the first byte of the packet header. */
|
---|
736 | KDRECVSTATE_PACKET_HDR_FIRST_BYTE,
|
---|
737 | /** Receiving the second byte of the packet header. */
|
---|
738 | KDRECVSTATE_PACKET_HDR_SECOND_BYTE,
|
---|
739 | /** Receiving the header. */
|
---|
740 | KDRECVSTATE_PACKET_HDR,
|
---|
741 | /** Receiving the packet body. */
|
---|
742 | KDRECVSTATE_PACKET_BODY,
|
---|
743 | /** Receiving the trailing byte. */
|
---|
744 | KDRECVSTATE_PACKET_TRAILER,
|
---|
745 | /** Blow up the enum to 32bits for easier alignment of members in structs. */
|
---|
746 | KDRECVSTATE_32BIT_HACK = 0x7fffffff
|
---|
747 | } KDRECVSTATE;
|
---|
748 |
|
---|
749 |
|
---|
750 | /**
|
---|
751 | * KD context data.
|
---|
752 | */
|
---|
753 | typedef struct KDCTX
|
---|
754 | {
|
---|
755 | /** Internal debugger console data. */
|
---|
756 | DBGC Dbgc;
|
---|
757 | /** Number of bytes received left for the current state. */
|
---|
758 | size_t cbRecvLeft;
|
---|
759 | /** Pointer where to write the next received data. */
|
---|
760 | uint8_t *pbRecv;
|
---|
761 | /** The current state when receiving a new packet. */
|
---|
762 | KDRECVSTATE enmState;
|
---|
763 | /** The timeout waiting for new data. */
|
---|
764 | RTMSINTERVAL msRecvTimeout;
|
---|
765 | /** Timestamp when we last received data from the remote end. */
|
---|
766 | uint64_t tsRecvLast;
|
---|
767 | /** Packet header being received. */
|
---|
768 | union
|
---|
769 | {
|
---|
770 | KDPACKETHDR Fields;
|
---|
771 | uint8_t ab[16];
|
---|
772 | } PktHdr;
|
---|
773 | /** The next packet ID to send. */
|
---|
774 | uint32_t idPktNext;
|
---|
775 | /** Offset into the body receive buffer. */
|
---|
776 | size_t offBodyRecv;
|
---|
777 | /** Body data. */
|
---|
778 | uint8_t abBody[_4K];
|
---|
779 | /** The trailer byte storage. */
|
---|
780 | uint8_t bTrailer;
|
---|
781 | /** Flag whether a breakin packet was received since the last time it was reset. */
|
---|
782 | bool fBreakinRecv;
|
---|
783 |
|
---|
784 | /** Pointer to the OS digger WinNt interface if a matching guest was detected. */
|
---|
785 | PDBGFOSIWINNT pIfWinNt;
|
---|
786 | } KDCTX;
|
---|
787 | /** Pointer to the KD context data. */
|
---|
788 | typedef KDCTX *PKDCTX;
|
---|
789 | /** Pointer to const KD context data. */
|
---|
790 | typedef const KDCTX *PCKDCTX;
|
---|
791 | /** Pointer to a KD context data pointer. */
|
---|
792 | typedef PKDCTX *PPKDCTX;
|
---|
793 |
|
---|
794 |
|
---|
795 | /*********************************************************************************************************************************
|
---|
796 | * Internal Functions *
|
---|
797 | *********************************************************************************************************************************/
|
---|
798 |
|
---|
799 |
|
---|
800 | #ifdef LOG_ENABLED
|
---|
801 | /**
|
---|
802 | * Returns a human readable string of the given packet sub type.
|
---|
803 | *
|
---|
804 | * @returns Pointer to sub type string.
|
---|
805 | * @param u16SubType The sub type to convert to a string.
|
---|
806 | */
|
---|
807 | static const char *dbgcKdPktDumpSubTypeToStr(uint16_t u16SubType)
|
---|
808 | {
|
---|
809 | switch (u16SubType)
|
---|
810 | {
|
---|
811 | case KD_PACKET_HDR_SUB_TYPE_STATE_CHANGE32: return "StateChange32";
|
---|
812 | case KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE: return "Manipulate";
|
---|
813 | case KD_PACKET_HDR_SUB_TYPE_DEBUG_IO: return "DebugIo";
|
---|
814 | case KD_PACKET_HDR_SUB_TYPE_ACKNOWLEDGE: return "Ack";
|
---|
815 | case KD_PACKET_HDR_SUB_TYPE_RESEND: return "Resend";
|
---|
816 | case KD_PACKET_HDR_SUB_TYPE_RESET: return "Reset";
|
---|
817 | case KD_PACKET_HDR_SUB_TYPE_STATE_CHANGE64: return "StateChange64";
|
---|
818 | case KD_PACKET_HDR_SUB_TYPE_POLL_BREAKIN: return "PollBreakin";
|
---|
819 | case KD_PACKET_HDR_SUB_TYPE_TRACE_IO: return "TraceIo";
|
---|
820 | case KD_PACKET_HDR_SUB_TYPE_CONTROL_REQUEST: return "ControlRequest";
|
---|
821 | case KD_PACKET_HDR_SUB_TYPE_FILE_IO: return "FileIo";
|
---|
822 | default: break;
|
---|
823 | }
|
---|
824 |
|
---|
825 | return "<UNKNOWN>";
|
---|
826 | }
|
---|
827 |
|
---|
828 |
|
---|
829 | /**
|
---|
830 | * Returns a human readable string of the given manipulate request ID.
|
---|
831 | *
|
---|
832 | * @returns nothing.
|
---|
833 | * @param idReq Request ID (API number in KD speak).
|
---|
834 | */
|
---|
835 | static const char *dbgcKdPktDumpManipulateReqToStr(uint32_t idReq)
|
---|
836 | {
|
---|
837 | switch (idReq)
|
---|
838 | {
|
---|
839 | case KD_PACKET_MANIPULATE_REQ_READ_VIRT_MEM: return "ReadVirtMem";
|
---|
840 | case KD_PACKET_MANIPULATE_REQ_WRITE_VIRT_MEM: return "WriteVirtMem";
|
---|
841 | case KD_PACKET_MANIPULATE_REQ_GET_CONTEXT: return "GetContext";
|
---|
842 | case KD_PACKET_MANIPULATE_REQ_SET_CONTEXT: return "SetContext";
|
---|
843 | case KD_PACKET_MANIPULATE_REQ_WRITE_BKPT: return "WriteBkpt";
|
---|
844 | case KD_PACKET_MANIPULATE_REQ_RESTORE_BKPT: return "RestoreBkpt";
|
---|
845 | case KD_PACKET_MANIPULATE_REQ_CONTINUE: return "Continue";
|
---|
846 | case KD_PACKET_MANIPULATE_REQ_READ_CTRL_SPACE: return "ReadCtrlSpace";
|
---|
847 | case KD_PACKET_MANIPULATE_REQ_WRITE_CTRL_SPACE: return "WriteCtrlSpace";
|
---|
848 | case KD_PACKET_MANIPULATE_REQ_READ_IO_SPACE: return "ReadIoSpace";
|
---|
849 | case KD_PACKET_MANIPULATE_REQ_WRITE_IO_SPACE: return "WriteIoSpace";
|
---|
850 | case KD_PACKET_MANIPULATE_REQ_REBOOT: return "Reboot";
|
---|
851 | case KD_PACKET_MANIPULATE_REQ_CONTINUE2: return "Continue2";
|
---|
852 | case KD_PACKET_MANIPULATE_REQ_READ_PHYS_MEM: return "ReadPhysMem";
|
---|
853 | case KD_PACKET_MANIPULATE_REQ_WRITE_PHYS_MEM: return "WritePhysMem";
|
---|
854 | case KD_PACKET_MANIPULATE_REQ_QUERY_SPEC_CALLS: return "QuerySpecCalls";
|
---|
855 | case KD_PACKET_MANIPULATE_REQ_SET_SPEC_CALLS: return "SetSpecCalls";
|
---|
856 | case KD_PACKET_MANIPULATE_REQ_CLEAR_SPEC_CALLS: return "ClrSpecCalls";
|
---|
857 | case KD_PACKET_MANIPULATE_REQ_SET_INTERNAL_BKPT: return "SetIntBkpt";
|
---|
858 | case KD_PACKET_MANIPULATE_REQ_GET_INTERNAL_BKPT: return "GetIntBkpt";
|
---|
859 | case KD_PACKET_MANIPULATE_REQ_READ_IO_SPACE_EX: return "ReadIoSpaceEx";
|
---|
860 | case KD_PACKET_MANIPULATE_REQ_WRITE_IO_SPACE_EX: return "WriteIoSpaceEx";
|
---|
861 | case KD_PACKET_MANIPULATE_REQ_GET_VERSION: return "GetVersion";
|
---|
862 | case KD_PACKET_MANIPULATE_REQ_CLEAR_ALL_INTERNAL_BKPT: return "ClrAllIntBkpt";
|
---|
863 | case KD_PACKET_MANIPULATE_REQ_GET_CONTEXT_EX: return "GetContextEx";
|
---|
864 | default: break;
|
---|
865 | }
|
---|
866 |
|
---|
867 | return "<UNKNOWN>";
|
---|
868 | }
|
---|
869 |
|
---|
870 |
|
---|
871 | /**
|
---|
872 | * Dumps the content of a manipulate packet.
|
---|
873 | *
|
---|
874 | * @returns nothing.
|
---|
875 | * @param pSgBuf S/G buffer containing the manipulate packet payload.
|
---|
876 | */
|
---|
877 | static void dbgcKdPktDumpManipulate(PRTSGBUF pSgBuf)
|
---|
878 | {
|
---|
879 | KDPACKETMANIPULATEHDR Hdr;
|
---|
880 | size_t cbCopied = RTSgBufCopyToBuf(pSgBuf, &Hdr, sizeof(Hdr));
|
---|
881 |
|
---|
882 | if (cbCopied == sizeof(Hdr))
|
---|
883 | {
|
---|
884 | const char *pszReq = dbgcKdPktDumpManipulateReqToStr(Hdr.idReq);
|
---|
885 |
|
---|
886 | Log3((" MANIPULATE(%#x (%s), %#x, %u, %#x)\n",
|
---|
887 | Hdr.idReq, pszReq, Hdr.u16CpuLvl, Hdr.idCpu, Hdr.u32NtStatus));
|
---|
888 |
|
---|
889 | switch (Hdr.idReq)
|
---|
890 | {
|
---|
891 | case KD_PACKET_MANIPULATE_REQ_READ_VIRT_MEM:
|
---|
892 | case KD_PACKET_MANIPULATE_REQ_WRITE_VIRT_MEM:
|
---|
893 | case KD_PACKET_MANIPULATE_REQ_READ_PHYS_MEM:
|
---|
894 | case KD_PACKET_MANIPULATE_REQ_WRITE_PHYS_MEM:
|
---|
895 | {
|
---|
896 | KDPACKETMANIPULATE_XFERMEM64 XferMem64;
|
---|
897 | cbCopied = RTSgBufCopyToBuf(pSgBuf, &XferMem64, sizeof(XferMem64));
|
---|
898 | if (cbCopied == sizeof(XferMem64))
|
---|
899 | {
|
---|
900 | Log3((" u64PtrTarget: %RX64\n"
|
---|
901 | " cbXferReq: %RX32\n"
|
---|
902 | " cbXfered: %RX32\n",
|
---|
903 | XferMem64.u64PtrTarget, XferMem64.cbXferReq, XferMem64.cbXfered));
|
---|
904 | }
|
---|
905 | else
|
---|
906 | Log3((" Payload to small, expected %u, got %zu\n", sizeof(XferMem64), cbCopied));
|
---|
907 | break;
|
---|
908 | }
|
---|
909 | case KD_PACKET_MANIPULATE_REQ_READ_CTRL_SPACE:
|
---|
910 | case KD_PACKET_MANIPULATE_REQ_WRITE_CTRL_SPACE:
|
---|
911 | {
|
---|
912 | KDPACKETMANIPULATE_XFERCTRLSPACE64 XferCtrlSpace64;
|
---|
913 | cbCopied = RTSgBufCopyToBuf(pSgBuf, &XferCtrlSpace64, sizeof(XferCtrlSpace64));
|
---|
914 | if (cbCopied == sizeof(XferCtrlSpace64))
|
---|
915 | {
|
---|
916 | Log3((" u64IdXfer: %RX64\n"
|
---|
917 | " cbXferReq: %RX32\n"
|
---|
918 | " cbXfered: %RX32\n",
|
---|
919 | XferCtrlSpace64.u64IdXfer, XferCtrlSpace64.cbXferReq, XferCtrlSpace64.cbXfered));
|
---|
920 | }
|
---|
921 | else
|
---|
922 | Log3((" Payload to small, expected %u, got %zu\n", sizeof(XferCtrlSpace64), cbCopied));
|
---|
923 | break;
|
---|
924 | }
|
---|
925 | default:
|
---|
926 | break;
|
---|
927 | }
|
---|
928 | }
|
---|
929 | else
|
---|
930 | Log3((" MANIPULATE(Header too small, expected %u, got %zu)\n", sizeof(Hdr), cbCopied));
|
---|
931 | }
|
---|
932 |
|
---|
933 |
|
---|
934 | /**
|
---|
935 | * Dumps the received packet to the debug log.
|
---|
936 | *
|
---|
937 | * @returns VBox status code.
|
---|
938 | * @param pPktHdr The packet header to dump.
|
---|
939 | * @param fRx Flag whether the packet was received (false indicates an outgoing packet).
|
---|
940 | */
|
---|
941 | static void dbgcKdPktDump(PCKDPACKETHDR pPktHdr, PCRTSGSEG paSegs, uint32_t cSegs, bool fRx)
|
---|
942 | {
|
---|
943 | RTSGBUF SgBuf;
|
---|
944 |
|
---|
945 | RTSgBufInit(&SgBuf, paSegs, cSegs);
|
---|
946 |
|
---|
947 | Log3(("%s KDPKTHDR(%#x, %#x (%s), %u, %#x, %#x)\n",
|
---|
948 | fRx ? "=>" : "<=",
|
---|
949 | pPktHdr->u32Signature, pPktHdr->u16SubType, dbgcKdPktDumpSubTypeToStr(pPktHdr->u16SubType),
|
---|
950 | pPktHdr->cbBody, pPktHdr->idPacket, pPktHdr->u32ChkSum));
|
---|
951 | switch (pPktHdr->u16SubType)
|
---|
952 | {
|
---|
953 | case KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE:
|
---|
954 | dbgcKdPktDumpManipulate(&SgBuf);
|
---|
955 | break;
|
---|
956 | default:
|
---|
957 | break;
|
---|
958 | }
|
---|
959 | }
|
---|
960 | #endif
|
---|
961 |
|
---|
962 |
|
---|
963 | /**
|
---|
964 | * Wrapper for the I/O interface write callback.
|
---|
965 | *
|
---|
966 | * @returns Status code.
|
---|
967 | * @param pThis The KD context.
|
---|
968 | * @param pvPkt The packet data to send.
|
---|
969 | * @param cbPkt Size of the packet in bytes.
|
---|
970 | */
|
---|
971 | DECLINLINE(int) dbgcKdCtxWrite(PKDCTX pThis, const void *pvPkt, size_t cbPkt)
|
---|
972 | {
|
---|
973 | return pThis->Dbgc.pBack->pfnWrite(pThis->Dbgc.pBack, pvPkt, cbPkt, NULL /*pcbWritten*/);
|
---|
974 | }
|
---|
975 |
|
---|
976 |
|
---|
977 | /**
|
---|
978 | * Fills in the given 64bit NT context structure with the requested values.
|
---|
979 | *
|
---|
980 | * @returns VBox status code.
|
---|
981 | * @param pThis The KD context.
|
---|
982 | * @param idCpu The CPU to query the context for.
|
---|
983 | * @param pNtCtx The NT context structure to fill in.
|
---|
984 | * @param pCtxFlags Combination of NTCONTEXT_F_XXX determining what to fill in.
|
---|
985 | */
|
---|
986 | static int dbgcKdCtxQueryNtCtx64(PKDCTX pThis, VMCPUID idCpu, PNTCONTEXT64 pNtCtx, uint32_t fCtxFlags)
|
---|
987 | {
|
---|
988 | RT_BZERO(pNtCtx, sizeof(*pNtCtx));
|
---|
989 |
|
---|
990 | pNtCtx->fContext = NTCONTEXT_F_AMD64;
|
---|
991 | int rc = DBGFR3RegCpuQueryU32(pThis->Dbgc.pUVM, idCpu, DBGFREG_MXCSR, &pNtCtx->u32RegMxCsr);
|
---|
992 |
|
---|
993 | if ( RT_SUCCESS(rc)
|
---|
994 | && fCtxFlags & NTCONTEXT_F_CONTROL)
|
---|
995 | {
|
---|
996 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_CS, &pNtCtx->u16SegCs);
|
---|
997 | if (RT_SUCCESS(rc))
|
---|
998 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_SS, &pNtCtx->u16SegSs);
|
---|
999 | if (RT_SUCCESS(rc))
|
---|
1000 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RIP, &pNtCtx->u64RegRip);
|
---|
1001 | if (RT_SUCCESS(rc))
|
---|
1002 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RSP, &pNtCtx->u64RegRsp);
|
---|
1003 | if (RT_SUCCESS(rc))
|
---|
1004 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RBP, &pNtCtx->u64RegRbp);
|
---|
1005 | if (RT_SUCCESS(rc))
|
---|
1006 | rc = DBGFR3RegCpuQueryU32(pThis->Dbgc.pUVM, idCpu, DBGFREG_EFLAGS, &pNtCtx->u32RegEflags);
|
---|
1007 | if (RT_SUCCESS(rc))
|
---|
1008 | pNtCtx->fContext |= NTCONTEXT_F_CONTROL;
|
---|
1009 | }
|
---|
1010 |
|
---|
1011 | if ( RT_SUCCESS(rc)
|
---|
1012 | && fCtxFlags & NTCONTEXT_F_INTEGER)
|
---|
1013 | {
|
---|
1014 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RAX, &pNtCtx->u64RegRax);
|
---|
1015 | if (RT_SUCCESS(rc))
|
---|
1016 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RCX, &pNtCtx->u64RegRcx);
|
---|
1017 | if (RT_SUCCESS(rc))
|
---|
1018 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RDX, &pNtCtx->u64RegRdx);
|
---|
1019 | if (RT_SUCCESS(rc))
|
---|
1020 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RBX, &pNtCtx->u64RegRbx);
|
---|
1021 | if (RT_SUCCESS(rc))
|
---|
1022 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RSI, &pNtCtx->u64RegRsi);
|
---|
1023 | if (RT_SUCCESS(rc))
|
---|
1024 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_RDI, &pNtCtx->u64RegRdi);
|
---|
1025 | if (RT_SUCCESS(rc))
|
---|
1026 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_R8, &pNtCtx->u64RegR8);
|
---|
1027 | if (RT_SUCCESS(rc))
|
---|
1028 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_R9, &pNtCtx->u64RegR9);
|
---|
1029 | if (RT_SUCCESS(rc))
|
---|
1030 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_R10, &pNtCtx->u64RegR10);
|
---|
1031 | if (RT_SUCCESS(rc))
|
---|
1032 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_R11, &pNtCtx->u64RegR11);
|
---|
1033 | if (RT_SUCCESS(rc))
|
---|
1034 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_R12, &pNtCtx->u64RegR12);
|
---|
1035 | if (RT_SUCCESS(rc))
|
---|
1036 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_R13, &pNtCtx->u64RegR13);
|
---|
1037 | if (RT_SUCCESS(rc))
|
---|
1038 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_R14, &pNtCtx->u64RegR14);
|
---|
1039 | if (RT_SUCCESS(rc))
|
---|
1040 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_R15, &pNtCtx->u64RegR15);
|
---|
1041 | if (RT_SUCCESS(rc))
|
---|
1042 | pNtCtx->fContext |= NTCONTEXT_F_INTEGER;
|
---|
1043 | }
|
---|
1044 |
|
---|
1045 | if ( RT_SUCCESS(rc)
|
---|
1046 | && fCtxFlags & NTCONTEXT_F_SEGMENTS)
|
---|
1047 | {
|
---|
1048 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_DS, &pNtCtx->u16SegDs);
|
---|
1049 | if (RT_SUCCESS(rc))
|
---|
1050 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_ES, &pNtCtx->u16SegEs);
|
---|
1051 | if (RT_SUCCESS(rc))
|
---|
1052 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_FS, &pNtCtx->u16SegFs);
|
---|
1053 | if (RT_SUCCESS(rc))
|
---|
1054 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_GS, &pNtCtx->u16SegGs);
|
---|
1055 | if (RT_SUCCESS(rc))
|
---|
1056 | pNtCtx->fContext |= NTCONTEXT_F_SEGMENTS;
|
---|
1057 | }
|
---|
1058 |
|
---|
1059 | if ( RT_SUCCESS(rc)
|
---|
1060 | && fCtxFlags & NTCONTEXT_F_FLOATING_POINT)
|
---|
1061 | {
|
---|
1062 | /** @todo. */
|
---|
1063 | }
|
---|
1064 |
|
---|
1065 | if ( RT_SUCCESS(rc)
|
---|
1066 | && fCtxFlags & NTCONTEXT_F_DEBUG)
|
---|
1067 | {
|
---|
1068 | /** @todo. */
|
---|
1069 | }
|
---|
1070 |
|
---|
1071 | return rc;
|
---|
1072 | }
|
---|
1073 |
|
---|
1074 |
|
---|
1075 | /**
|
---|
1076 | * Fills in the given 64bit NT kernel context structure with the requested values.
|
---|
1077 | *
|
---|
1078 | * @returns VBox status code.
|
---|
1079 | * @param pThis The KD context.
|
---|
1080 | * @param idCpu The CPU to query the context for.
|
---|
1081 | * @param pNtCtx The NT context structure to fill in.
|
---|
1082 | * @param pCtxFlags Combination of NTCONTEXT_F_XXX determining what to fill in.
|
---|
1083 | */
|
---|
1084 | static int dbgcKdCtxQueryNtKCtx64(PKDCTX pThis, VMCPUID idCpu, PNTKCONTEXT64 pKNtCtx, uint32_t fCtxFlags)
|
---|
1085 | {
|
---|
1086 | RT_BZERO(pKNtCtx, sizeof(*pKNtCtx));
|
---|
1087 |
|
---|
1088 | int rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_CR0, &pKNtCtx->u64RegCr0);
|
---|
1089 | if (RT_SUCCESS(rc))
|
---|
1090 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_CR2, &pKNtCtx->u64RegCr2);
|
---|
1091 | if (RT_SUCCESS(rc))
|
---|
1092 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_CR3, &pKNtCtx->u64RegCr3);
|
---|
1093 | if (RT_SUCCESS(rc))
|
---|
1094 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_CR4, &pKNtCtx->u64RegCr4);
|
---|
1095 | if (RT_SUCCESS(rc))
|
---|
1096 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_CR8, &pKNtCtx->u64RegCr8);
|
---|
1097 | if (RT_SUCCESS(rc))
|
---|
1098 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_DR0, &pKNtCtx->u64RegDr0);
|
---|
1099 | if (RT_SUCCESS(rc))
|
---|
1100 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_DR1, &pKNtCtx->u64RegDr1);
|
---|
1101 | if (RT_SUCCESS(rc))
|
---|
1102 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_DR2, &pKNtCtx->u64RegDr2);
|
---|
1103 | if (RT_SUCCESS(rc))
|
---|
1104 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_DR3, &pKNtCtx->u64RegDr3);
|
---|
1105 | if (RT_SUCCESS(rc))
|
---|
1106 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_DR6, &pKNtCtx->u64RegDr6);
|
---|
1107 | if (RT_SUCCESS(rc))
|
---|
1108 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_DR7, &pKNtCtx->u64RegDr7);
|
---|
1109 | if (RT_SUCCESS(rc))
|
---|
1110 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_GDTR_LIMIT, &pKNtCtx->Gdtr.u16Limit);
|
---|
1111 | if (RT_SUCCESS(rc))
|
---|
1112 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_GDTR_BASE, &pKNtCtx->Gdtr.u64PtrBase);
|
---|
1113 | if (RT_SUCCESS(rc))
|
---|
1114 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_IDTR_LIMIT, &pKNtCtx->Idtr.u16Limit);
|
---|
1115 | if (RT_SUCCESS(rc))
|
---|
1116 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_IDTR_BASE, &pKNtCtx->Idtr.u64PtrBase);
|
---|
1117 | if (RT_SUCCESS(rc))
|
---|
1118 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_TR, &pKNtCtx->u16RegTr);
|
---|
1119 | if (RT_SUCCESS(rc))
|
---|
1120 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, idCpu, DBGFREG_LDTR, &pKNtCtx->u16RegLdtr);
|
---|
1121 | if (RT_SUCCESS(rc))
|
---|
1122 | rc = DBGFR3RegCpuQueryU32(pThis->Dbgc.pUVM, idCpu, DBGFREG_MXCSR, &pKNtCtx->u32RegMxCsr);
|
---|
1123 | /** @todo Debug control and stuff. */
|
---|
1124 |
|
---|
1125 | if (RT_SUCCESS(rc))
|
---|
1126 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_MSR_K8_GS_BASE, &pKNtCtx->u64MsrGsBase);
|
---|
1127 | if (RT_SUCCESS(rc))
|
---|
1128 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_MSR_K8_KERNEL_GS_BASE, &pKNtCtx->u64MsrKernelGsBase);
|
---|
1129 | if (RT_SUCCESS(rc))
|
---|
1130 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_MSR_K6_STAR, &pKNtCtx->u64MsrStar);
|
---|
1131 | if (RT_SUCCESS(rc))
|
---|
1132 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_MSR_K8_LSTAR, &pKNtCtx->u64MsrLstar);
|
---|
1133 | if (RT_SUCCESS(rc))
|
---|
1134 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_MSR_K8_CSTAR, &pKNtCtx->u64MsrCstar);
|
---|
1135 | if (RT_SUCCESS(rc))
|
---|
1136 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, idCpu, DBGFREG_MSR_K8_SF_MASK, &pKNtCtx->u64MsrSfMask);
|
---|
1137 | /** @todo XCR0 */
|
---|
1138 |
|
---|
1139 | if (RT_SUCCESS(rc))
|
---|
1140 | rc = dbgcKdCtxQueryNtCtx64(pThis, idCpu, &pKNtCtx->Ctx, fCtxFlags);
|
---|
1141 |
|
---|
1142 | return rc;
|
---|
1143 | }
|
---|
1144 |
|
---|
1145 |
|
---|
1146 | /**
|
---|
1147 | * Validates the given KD packet header.
|
---|
1148 | *
|
---|
1149 | * @returns Flag whether the packet header is valid, false if invalid.
|
---|
1150 | * @param pPktHdr The packet header to validate.
|
---|
1151 | */
|
---|
1152 | static bool dbgcKdPktHdrValidate(PCKDPACKETHDR pPktHdr)
|
---|
1153 | {
|
---|
1154 | if ( pPktHdr->u32Signature != KD_PACKET_HDR_SIGNATURE_DATA
|
---|
1155 | && pPktHdr->u32Signature != KD_PACKET_HDR_SIGNATURE_CONTROL
|
---|
1156 | && pPktHdr->u32Signature != KD_PACKET_HDR_SIGNATURE_BREAKIN)
|
---|
1157 | return false;
|
---|
1158 |
|
---|
1159 | if (pPktHdr->u16SubType >= KD_PACKET_HDR_SUB_TYPE_MAX)
|
---|
1160 | return false;
|
---|
1161 |
|
---|
1162 | uint32_t idPacket = pPktHdr->idPacket & UINT32_C(0xfffffffe);
|
---|
1163 | if ( idPacket != KD_PACKET_HDR_ID_INITIAL
|
---|
1164 | && idPacket != KD_PACKET_HDR_ID_RESET
|
---|
1165 | && idPacket != 0 /* Happens on the very first packet */)
|
---|
1166 | return false;
|
---|
1167 |
|
---|
1168 | return true;
|
---|
1169 | }
|
---|
1170 |
|
---|
1171 |
|
---|
1172 | /**
|
---|
1173 | * Generates a checksum from the given buffer.
|
---|
1174 | *
|
---|
1175 | * @returns Generated checksum.
|
---|
1176 | * @param pv The data to generate a checksum from.
|
---|
1177 | * @param cb Number of bytes to checksum.
|
---|
1178 | */
|
---|
1179 | static uint32_t dbgcKdPktChkSumGen(const void *pv, size_t cb)
|
---|
1180 | {
|
---|
1181 | const uint8_t *pb = (const uint8_t *)pv;
|
---|
1182 | uint32_t u32ChkSum = 0;
|
---|
1183 |
|
---|
1184 | while (cb--)
|
---|
1185 | u32ChkSum += *pb++;
|
---|
1186 |
|
---|
1187 | return u32ChkSum;
|
---|
1188 | }
|
---|
1189 |
|
---|
1190 |
|
---|
1191 | /**
|
---|
1192 | * Generates a checksum from the given segments.
|
---|
1193 | *
|
---|
1194 | * @returns Generated checksum.
|
---|
1195 | * @param paSegs Pointer to the array of segments containing the data.
|
---|
1196 | * @param cSegs Number of segments.
|
---|
1197 | * @param pcbChkSum Where to store the number of bytes checksummed, optional.
|
---|
1198 | */
|
---|
1199 | static uint32_t dbgcKdPktChkSumGenSg(PCRTSGSEG paSegs, uint32_t cSegs, size_t *pcbChkSum)
|
---|
1200 | {
|
---|
1201 | size_t cbChkSum = 0;
|
---|
1202 | uint32_t u32ChkSum = 0;
|
---|
1203 |
|
---|
1204 | for (uint32_t i = 0; i < cSegs; i++)
|
---|
1205 | {
|
---|
1206 | u32ChkSum += dbgcKdPktChkSumGen(paSegs[i].pvSeg, paSegs[i].cbSeg);
|
---|
1207 | cbChkSum += paSegs[i].cbSeg;
|
---|
1208 | }
|
---|
1209 |
|
---|
1210 | if (pcbChkSum)
|
---|
1211 | *pcbChkSum = cbChkSum;
|
---|
1212 |
|
---|
1213 | return u32ChkSum;
|
---|
1214 | }
|
---|
1215 |
|
---|
1216 |
|
---|
1217 | /**
|
---|
1218 | * Waits for an acknowledgment.
|
---|
1219 | *
|
---|
1220 | * @returns VBox status code.
|
---|
1221 | * @param pThis The KD context.
|
---|
1222 | * @param msWait Maximum number of milliseconds to wait for an acknowledge.
|
---|
1223 | * @param pfResend Where to store the resend requested flag on success.
|
---|
1224 | */
|
---|
1225 | static int dbgcKdCtxPktWaitForAck(PKDCTX pThis, RTMSINTERVAL msWait, bool *pfResend)
|
---|
1226 | {
|
---|
1227 | KDPACKETHDR PktAck;
|
---|
1228 | uint8_t *pbCur = (uint8_t *)&PktAck;
|
---|
1229 | size_t cbLeft = sizeof(PktAck);
|
---|
1230 | uint64_t tsStartMs = RTTimeMilliTS();
|
---|
1231 | int rc = VINF_SUCCESS;
|
---|
1232 |
|
---|
1233 | LogFlowFunc(("pThis=%p msWait=%u pfResend=%p\n", pThis, msWait, pfResend));
|
---|
1234 |
|
---|
1235 | RT_ZERO(PktAck);
|
---|
1236 |
|
---|
1237 | /* There might be breakin packets in the queue, read until we get something else. */
|
---|
1238 | while ( msWait
|
---|
1239 | && RT_SUCCESS(rc))
|
---|
1240 | {
|
---|
1241 | if (pThis->Dbgc.pBack->pfnInput(pThis->Dbgc.pBack, msWait))
|
---|
1242 | {
|
---|
1243 | size_t cbRead = 0;
|
---|
1244 | rc = pThis->Dbgc.pBack->pfnRead(pThis->Dbgc.pBack, pbCur, 1, &cbRead);
|
---|
1245 | if ( RT_SUCCESS(rc)
|
---|
1246 | && cbRead == 1)
|
---|
1247 | {
|
---|
1248 | uint64_t tsSpanMs = RTTimeMilliTS() - tsStartMs;
|
---|
1249 | msWait -= RT_MIN(msWait, tsSpanMs);
|
---|
1250 | tsStartMs = RTTimeMilliTS();
|
---|
1251 |
|
---|
1252 | if (*pbCur == KD_PACKET_HDR_SIGNATURE_BREAKIN_BYTE)
|
---|
1253 | pThis->fBreakinRecv = true;
|
---|
1254 | else
|
---|
1255 | {
|
---|
1256 | pbCur++;
|
---|
1257 | cbLeft--;
|
---|
1258 | break;
|
---|
1259 | }
|
---|
1260 | }
|
---|
1261 | }
|
---|
1262 | else
|
---|
1263 | rc = VERR_TIMEOUT;
|
---|
1264 | }
|
---|
1265 |
|
---|
1266 | if ( RT_SUCCESS(rc)
|
---|
1267 | && !msWait)
|
---|
1268 | rc = VERR_TIMEOUT;
|
---|
1269 |
|
---|
1270 | if (RT_SUCCESS(rc))
|
---|
1271 | {
|
---|
1272 | while ( msWait
|
---|
1273 | && RT_SUCCESS(rc)
|
---|
1274 | && cbLeft)
|
---|
1275 | {
|
---|
1276 | if (pThis->Dbgc.pBack->pfnInput(pThis->Dbgc.pBack, msWait))
|
---|
1277 | {
|
---|
1278 | size_t cbRead = 0;
|
---|
1279 | rc = pThis->Dbgc.pBack->pfnRead(pThis->Dbgc.pBack, pbCur, cbLeft, &cbRead);
|
---|
1280 | if (RT_SUCCESS(rc))
|
---|
1281 | {
|
---|
1282 | uint64_t tsSpanMs = RTTimeMilliTS() - tsStartMs;
|
---|
1283 | msWait -= RT_MIN(msWait, tsSpanMs);
|
---|
1284 | tsStartMs = RTTimeMilliTS();
|
---|
1285 |
|
---|
1286 | cbLeft -= cbRead;
|
---|
1287 | pbCur += cbRead;
|
---|
1288 | }
|
---|
1289 | }
|
---|
1290 | else
|
---|
1291 | rc = VERR_TIMEOUT;
|
---|
1292 | }
|
---|
1293 |
|
---|
1294 | if (RT_SUCCESS(rc))
|
---|
1295 | {
|
---|
1296 | if (PktAck.u32Signature == KD_PACKET_HDR_SIGNATURE_CONTROL)
|
---|
1297 | {
|
---|
1298 | if (PktAck.u16SubType == KD_PACKET_HDR_SUB_TYPE_ACKNOWLEDGE)
|
---|
1299 | rc = VINF_SUCCESS;
|
---|
1300 | else if (PktAck.u16SubType == KD_PACKET_HDR_SUB_TYPE_RESEND)
|
---|
1301 | {
|
---|
1302 | *pfResend = true;
|
---|
1303 | rc = VINF_SUCCESS;
|
---|
1304 | }
|
---|
1305 | else
|
---|
1306 | rc = VERR_NET_PROTOCOL_ERROR;
|
---|
1307 | }
|
---|
1308 | else
|
---|
1309 | rc = VERR_NET_PROTOCOL_ERROR;
|
---|
1310 | }
|
---|
1311 | }
|
---|
1312 |
|
---|
1313 | LogFlowFunc(("returns rc=%Rrc *pfResend=%RTbool\n", rc, *pfResend));
|
---|
1314 | return rc;
|
---|
1315 | }
|
---|
1316 |
|
---|
1317 |
|
---|
1318 | /**
|
---|
1319 | * Sends the given packet header and optional segmented body (the trailing byte is sent automatically).
|
---|
1320 | *
|
---|
1321 | * @returns VBox status code.
|
---|
1322 | * @param pThis The KD context.
|
---|
1323 | * @param u32Signature The signature to send.
|
---|
1324 | * @param u16SubType The sub type to send.
|
---|
1325 | * @param idPacket Packet ID to send.
|
---|
1326 | * @param paSegs Pointer to the array of segments to send in the body, optional.
|
---|
1327 | * @param cSegs Number of segments.
|
---|
1328 | * @param fAck Flag whether to wait for an acknowledge.
|
---|
1329 | */
|
---|
1330 | static int dbgcKdCtxPktSendSg(PKDCTX pThis, uint32_t u32Signature, uint16_t u16SubType,
|
---|
1331 | PCRTSGSEG paSegs, uint32_t cSegs, bool fAck)
|
---|
1332 | {
|
---|
1333 | int rc = VINF_SUCCESS;
|
---|
1334 | uint32_t cRetriesLeft = 3;
|
---|
1335 | uint8_t bTrailer = KD_PACKET_TRAILING_BYTE;
|
---|
1336 | KDPACKETHDR Hdr;
|
---|
1337 |
|
---|
1338 | size_t cbChkSum = 0;
|
---|
1339 | uint32_t u32ChkSum = dbgcKdPktChkSumGenSg(paSegs, cSegs, &cbChkSum);
|
---|
1340 |
|
---|
1341 | Hdr.u32Signature = u32Signature;
|
---|
1342 | Hdr.u16SubType = u16SubType;
|
---|
1343 | Hdr.cbBody = (uint16_t)cbChkSum;
|
---|
1344 | Hdr.idPacket = pThis->idPktNext;
|
---|
1345 | Hdr.u32ChkSum = u32ChkSum;
|
---|
1346 |
|
---|
1347 | #ifdef LOG_ENABLED
|
---|
1348 | dbgcKdPktDump(&Hdr, paSegs, cSegs, false /*fRx*/);
|
---|
1349 | #endif
|
---|
1350 |
|
---|
1351 | while (cRetriesLeft--)
|
---|
1352 | {
|
---|
1353 | bool fResend = false;
|
---|
1354 |
|
---|
1355 | rc = dbgcKdCtxWrite(pThis, &Hdr, sizeof(Hdr));
|
---|
1356 | if ( RT_SUCCESS(rc)
|
---|
1357 | && paSegs
|
---|
1358 | && cSegs)
|
---|
1359 | {
|
---|
1360 | for (uint32_t i = 0; i < cSegs && RT_SUCCESS(rc); i++)
|
---|
1361 | rc = dbgcKdCtxWrite(pThis, paSegs[i].pvSeg, paSegs[i].cbSeg);
|
---|
1362 |
|
---|
1363 | if (RT_SUCCESS(rc))
|
---|
1364 | rc = dbgcKdCtxWrite(pThis, &bTrailer, sizeof(bTrailer));
|
---|
1365 | }
|
---|
1366 |
|
---|
1367 | if (RT_SUCCESS(rc))
|
---|
1368 | {
|
---|
1369 | if (fAck)
|
---|
1370 | rc = dbgcKdCtxPktWaitForAck(pThis, 10 * 1000, &fResend);
|
---|
1371 |
|
---|
1372 | if ( RT_SUCCESS(rc)
|
---|
1373 | && !fResend)
|
---|
1374 | break;
|
---|
1375 | }
|
---|
1376 | }
|
---|
1377 |
|
---|
1378 | return rc;
|
---|
1379 | }
|
---|
1380 |
|
---|
1381 |
|
---|
1382 | /**
|
---|
1383 | * Sends the given packet header and optional body (the trailing byte is sent automatically).
|
---|
1384 | *
|
---|
1385 | * @returns VBox status code.
|
---|
1386 | * @param pThis The KD context.
|
---|
1387 | * @param u32Signature The signature to send.
|
---|
1388 | * @param u16SubType The sub type to send.
|
---|
1389 | * @param pvBody The body to send, optional.
|
---|
1390 | * @param cbBody Body size in bytes.
|
---|
1391 | * @param fAck Flag whether to wait for an acknowledge.
|
---|
1392 | */
|
---|
1393 | DECLINLINE(int) dbgcKdCtxPktSend(PKDCTX pThis, uint32_t u32Signature, uint16_t u16SubType,
|
---|
1394 | const void *pvBody, size_t cbBody,
|
---|
1395 | bool fAck)
|
---|
1396 | {
|
---|
1397 | RTSGSEG Seg;
|
---|
1398 |
|
---|
1399 | Seg.pvSeg = (void *)pvBody;
|
---|
1400 | Seg.cbSeg = cbBody;
|
---|
1401 | return dbgcKdCtxPktSendSg(pThis, u32Signature, u16SubType, cbBody ? &Seg : NULL, cbBody ? 1 : 0, fAck);
|
---|
1402 | }
|
---|
1403 |
|
---|
1404 |
|
---|
1405 | /**
|
---|
1406 | * Sends a resend packet answer.
|
---|
1407 | *
|
---|
1408 | * @returns VBox status code.
|
---|
1409 | * @param pThis The KD context.
|
---|
1410 | */
|
---|
1411 | DECLINLINE(int) dbgcKdCtxPktSendResend(PKDCTX pThis)
|
---|
1412 | {
|
---|
1413 | return dbgcKdCtxPktSend(pThis, KD_PACKET_HDR_SIGNATURE_CONTROL, KD_PACKET_HDR_SUB_TYPE_RESEND,
|
---|
1414 | NULL /*pvBody*/, 0 /*cbBody*/, false /*fAck*/);
|
---|
1415 | }
|
---|
1416 |
|
---|
1417 |
|
---|
1418 | /**
|
---|
1419 | * Sends a resend packet answer.
|
---|
1420 | *
|
---|
1421 | * @returns VBox status code.
|
---|
1422 | * @param pThis The KD context.
|
---|
1423 | */
|
---|
1424 | DECLINLINE(int) dbgcKdCtxPktSendReset(PKDCTX pThis)
|
---|
1425 | {
|
---|
1426 | pThis->idPktNext = KD_PACKET_HDR_ID_INITIAL;
|
---|
1427 | return dbgcKdCtxPktSend(pThis, KD_PACKET_HDR_SIGNATURE_CONTROL, KD_PACKET_HDR_SUB_TYPE_RESET,
|
---|
1428 | NULL /*pvBody*/, 0 /*cbBody*/, false /*fAck*/);
|
---|
1429 | }
|
---|
1430 |
|
---|
1431 |
|
---|
1432 | /**
|
---|
1433 | * Sends an acknowledge packet answer.
|
---|
1434 | *
|
---|
1435 | * @returns VBox status code.
|
---|
1436 | * @param pThis The KD context.
|
---|
1437 | */
|
---|
1438 | DECLINLINE(int) dbgcKdCtxPktSendAck(PKDCTX pThis)
|
---|
1439 | {
|
---|
1440 | return dbgcKdCtxPktSend(pThis, KD_PACKET_HDR_SIGNATURE_CONTROL, KD_PACKET_HDR_SUB_TYPE_ACKNOWLEDGE,
|
---|
1441 | NULL /*pvBody*/, 0 /*cbBody*/, false /*fAck*/);
|
---|
1442 | }
|
---|
1443 |
|
---|
1444 |
|
---|
1445 | /**
|
---|
1446 | * Resets the packet receive state machine.
|
---|
1447 | *
|
---|
1448 | * @returns nothing.
|
---|
1449 | * @param pThis The KD context.
|
---|
1450 | */
|
---|
1451 | static void dbgcKdCtxPktRecvReset(PKDCTX pThis)
|
---|
1452 | {
|
---|
1453 | pThis->enmState = KDRECVSTATE_PACKET_HDR_FIRST_BYTE;
|
---|
1454 | pThis->pbRecv = &pThis->PktHdr.ab[0];
|
---|
1455 | pThis->cbRecvLeft = sizeof(pThis->PktHdr.ab[0]);
|
---|
1456 | pThis->msRecvTimeout = RT_INDEFINITE_WAIT;
|
---|
1457 | pThis->tsRecvLast = RTTimeMilliTS();
|
---|
1458 | }
|
---|
1459 |
|
---|
1460 |
|
---|
1461 | /**
|
---|
1462 | * Sends a state change event packet.
|
---|
1463 | *
|
---|
1464 | * @returns VBox status code.
|
---|
1465 | * @param pThis The KD context data.
|
---|
1466 | * @param enmType The event type.
|
---|
1467 | */
|
---|
1468 | static int dbgcKdCtxStateChangeSend(PKDCTX pThis, DBGFEVENTTYPE enmType)
|
---|
1469 | {
|
---|
1470 | LogFlowFunc(("pThis=%p enmType=%u\n", pThis, enmType));
|
---|
1471 |
|
---|
1472 | /* Select the record to send based on the CPU mode. */
|
---|
1473 | int rc = VINF_SUCCESS;
|
---|
1474 | CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(&pThis->Dbgc.CmdHlp);
|
---|
1475 | switch (enmMode)
|
---|
1476 | {
|
---|
1477 | case CPUMMODE_PROTECTED:
|
---|
1478 | {
|
---|
1479 | break;
|
---|
1480 | }
|
---|
1481 | case CPUMMODE_LONG:
|
---|
1482 | {
|
---|
1483 | KDPACKETSTATECHANGE64 StateChange64;
|
---|
1484 | RT_ZERO(StateChange64);
|
---|
1485 |
|
---|
1486 | StateChange64.u32StateNew = KD_PACKET_STATE_CHANGE_EXCEPTION;
|
---|
1487 | StateChange64.u16CpuLvl = 0x6; /** @todo Figure this one out. */
|
---|
1488 | StateChange64.idCpu = pThis->Dbgc.idCpu;
|
---|
1489 | StateChange64.cCpus = (uint16_t)DBGFR3CpuGetCount(pThis->Dbgc.pUVM);
|
---|
1490 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, DBGFREG_RIP, &StateChange64.u64RipThread);
|
---|
1491 | if (RT_SUCCESS(rc))
|
---|
1492 | {
|
---|
1493 | /** @todo Properly fill in the exception record. */
|
---|
1494 | switch (enmType)
|
---|
1495 | {
|
---|
1496 | case DBGFEVENT_HALT_DONE:
|
---|
1497 | case DBGFEVENT_BREAKPOINT:
|
---|
1498 | case DBGFEVENT_BREAKPOINT_IO:
|
---|
1499 | case DBGFEVENT_BREAKPOINT_MMIO:
|
---|
1500 | case DBGFEVENT_BREAKPOINT_HYPER:
|
---|
1501 | StateChange64.u.Exception.ExcpRec.u32ExcpCode = KD_PACKET_EXCP_CODE_BKPT;
|
---|
1502 | break;
|
---|
1503 | case DBGFEVENT_STEPPED:
|
---|
1504 | case DBGFEVENT_STEPPED_HYPER:
|
---|
1505 | StateChange64.u.Exception.ExcpRec.u32ExcpCode = KD_PACKET_EXCP_CODE_SINGLE_STEP;
|
---|
1506 | break;
|
---|
1507 | default:
|
---|
1508 | AssertMsgFailed(("Invalid DBGF event type for state change %d!\n", enmType));
|
---|
1509 | }
|
---|
1510 |
|
---|
1511 | StateChange64.u.Exception.ExcpRec.cExcpParms = 3;
|
---|
1512 | StateChange64.u.Exception.u32FirstChance = 0x1;
|
---|
1513 |
|
---|
1514 | /** @todo Properly fill in the control report. */
|
---|
1515 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, DBGFREG_DR6, &StateChange64.uCtrlReport.Amd64.u64RegDr6);
|
---|
1516 | if (RT_SUCCESS(rc))
|
---|
1517 | rc = DBGFR3RegCpuQueryU64(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, DBGFREG_DR7, &StateChange64.uCtrlReport.Amd64.u64RegDr7);
|
---|
1518 | if (RT_SUCCESS(rc))
|
---|
1519 | rc = DBGFR3RegCpuQueryU32(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, DBGFREG_RFLAGS, &StateChange64.uCtrlReport.Amd64.u32RegEflags);
|
---|
1520 | if (RT_SUCCESS(rc))
|
---|
1521 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, DBGFREG_CS, &StateChange64.uCtrlReport.Amd64.u16SegCs);
|
---|
1522 | if (RT_SUCCESS(rc))
|
---|
1523 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, DBGFREG_DS, &StateChange64.uCtrlReport.Amd64.u16SegDs);
|
---|
1524 | if (RT_SUCCESS(rc))
|
---|
1525 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, DBGFREG_ES, &StateChange64.uCtrlReport.Amd64.u16SegEs);
|
---|
1526 | if (RT_SUCCESS(rc))
|
---|
1527 | rc = DBGFR3RegCpuQueryU16(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, DBGFREG_FS, &StateChange64.uCtrlReport.Amd64.u16SegFs);
|
---|
1528 |
|
---|
1529 | /* Read instruction bytes. */
|
---|
1530 | StateChange64.uCtrlReport.Amd64.cbInsnStream = sizeof(StateChange64.uCtrlReport.Amd64.abInsn);
|
---|
1531 | DBGFADDRESS AddrRip;
|
---|
1532 | DBGFR3AddrFromFlat(pThis->Dbgc.pUVM, &AddrRip, StateChange64.u64RipThread);
|
---|
1533 | rc = DBGFR3MemRead(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, &AddrRip,
|
---|
1534 | &StateChange64.uCtrlReport.Amd64.abInsn[0], StateChange64.uCtrlReport.Amd64.cbInsnStream);
|
---|
1535 | if (RT_SUCCESS(rc))
|
---|
1536 | {
|
---|
1537 | pThis->idPktNext = KD_PACKET_HDR_ID_INITIAL;
|
---|
1538 | rc = dbgcKdCtxPktSend(pThis, KD_PACKET_HDR_SIGNATURE_DATA, KD_PACKET_HDR_SUB_TYPE_STATE_CHANGE64,
|
---|
1539 | &StateChange64, sizeof(StateChange64), false /*fAck*/);
|
---|
1540 | }
|
---|
1541 | }
|
---|
1542 | break;
|
---|
1543 | }
|
---|
1544 | case CPUMMODE_REAL:
|
---|
1545 | default:
|
---|
1546 | return DBGCCmdHlpPrintf(&pThis->Dbgc.CmdHlp, "error: Invalid CPU mode %d.\n", enmMode);
|
---|
1547 | }
|
---|
1548 |
|
---|
1549 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1550 | return rc;
|
---|
1551 | }
|
---|
1552 |
|
---|
1553 |
|
---|
1554 | /**
|
---|
1555 | * Processes a get version 64 request.
|
---|
1556 | *
|
---|
1557 | * @returns VBox status code.
|
---|
1558 | * @param pThis The KD context.
|
---|
1559 | * @param pPktManip The manipulate packet request.
|
---|
1560 | */
|
---|
1561 | static int dbgcKdCtxPktManipulate64GetVersion(PKDCTX pThis, PCKDPACKETMANIPULATE64 pPktManip)
|
---|
1562 | {
|
---|
1563 | KDPACKETMANIPULATE64 Resp;
|
---|
1564 | RT_ZERO(Resp);
|
---|
1565 |
|
---|
1566 | /* Fill in the generic part. */
|
---|
1567 | Resp.Hdr.idReq = KD_PACKET_MANIPULATE_REQ_GET_VERSION;
|
---|
1568 | Resp.Hdr.u16CpuLvl = pPktManip->Hdr.u16CpuLvl;
|
---|
1569 | Resp.Hdr.idCpu = pPktManip->Hdr.idCpu;
|
---|
1570 | Resp.Hdr.u32NtStatus = NTSTATUS_SUCCESS;
|
---|
1571 |
|
---|
1572 | #if 0
|
---|
1573 | /* Build our own response in case there is no Windows interface available. */
|
---|
1574 | if (pThis->pIfWinNt)
|
---|
1575 | {
|
---|
1576 | RTGCUINTPTR GCPtrKpcr = 0;
|
---|
1577 |
|
---|
1578 | int rc = pThis->pIfWinNt->pfnQueryKpcrForVCpu(pThis->pIfWinNt, pThis->Dbgc.pUVM, Resp.Hdr.idCpu,
|
---|
1579 | &GCPtrKpcr, NULL /*pKpcrb*/);
|
---|
1580 | if (RT_SUCCESS(rc))
|
---|
1581 | {
|
---|
1582 | DBGFADDRESS AddrKdVersionBlock;
|
---|
1583 | DBGFR3AddrFromFlat(pThis->Dbgc.pUVM, &AddrKdVersionBlock, GCPtrKpcr + 0x108);
|
---|
1584 | rc = DBGFR3MemRead(pThis->Dbgc.pUVM, Resp.Hdr.idCpu, &AddrKdVersionBlock, &Resp.u.GetVersion, sizeof(Resp.u.GetVersion));
|
---|
1585 | }
|
---|
1586 | }
|
---|
1587 | else
|
---|
1588 | #endif
|
---|
1589 | {
|
---|
1590 | /* Fill in the request specific part, the static parts are from an amd64 Windows 10 guest. */
|
---|
1591 | Resp.u.GetVersion.u16VersMaj = 0x0f;
|
---|
1592 | Resp.u.GetVersion.u16VersMin = 0x2800;
|
---|
1593 | Resp.u.GetVersion.u8VersProtocol = 0x6; /** From a Windows 10 guest. */
|
---|
1594 | Resp.u.GetVersion.u8VersKdSecondary = 0x2; /** From a Windows 10 guest. */
|
---|
1595 | Resp.u.GetVersion.fFlags = 0x5; /** 64bit pointer. */
|
---|
1596 | Resp.u.GetVersion.u16MachineType = IMAGE_FILE_MACHINE_AMD64;
|
---|
1597 | Resp.u.GetVersion.u8MaxPktType = KD_PACKET_HDR_SUB_TYPE_MAX;
|
---|
1598 | Resp.u.GetVersion.u8MaxStateChange = KD_PACKET_STATE_CHANGE_MAX - KD_PACKET_STATE_CHANGE_MIN;
|
---|
1599 | Resp.u.GetVersion.u8MaxManipulate = KD_PACKET_MANIPULATE_REQ_CLEAR_ALL_INTERNAL_BKPT - KD_PACKET_MANIPULATE_REQ_MIN;
|
---|
1600 | Resp.u.GetVersion.u64PtrDebuggerDataList = 0 ;//0xfffff800deadc0de;
|
---|
1601 | }
|
---|
1602 |
|
---|
1603 | /* Try to fill in the rest using the OS digger interface if available. */
|
---|
1604 | int rc = VINF_SUCCESS;
|
---|
1605 | if (pThis->pIfWinNt)
|
---|
1606 | rc = pThis->pIfWinNt->pfnQueryKernelPtrs(pThis->pIfWinNt, pThis->Dbgc.pUVM, &Resp.u.GetVersion.u64PtrKernBase,
|
---|
1607 | &Resp.u.GetVersion.u64PtrPsLoadedModuleList);
|
---|
1608 | else
|
---|
1609 | {
|
---|
1610 | /** @todo */
|
---|
1611 | }
|
---|
1612 |
|
---|
1613 | if (RT_SUCCESS(rc))
|
---|
1614 | rc = dbgcKdCtxPktSend(pThis, KD_PACKET_HDR_SIGNATURE_DATA, KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE,
|
---|
1615 | &Resp, sizeof(Resp), true /*fAck*/);
|
---|
1616 |
|
---|
1617 | return rc;
|
---|
1618 | }
|
---|
1619 |
|
---|
1620 |
|
---|
1621 | /**
|
---|
1622 | * Processes a read virtual memory 64 request.
|
---|
1623 | *
|
---|
1624 | * @returns VBox status code.
|
---|
1625 | * @param pThis The KD context.
|
---|
1626 | * @param pPktManip The manipulate packet request.
|
---|
1627 | */
|
---|
1628 | static int dbgcKdCtxPktManipulate64ReadMem(PKDCTX pThis, PCKDPACKETMANIPULATE64 pPktManip)
|
---|
1629 | {
|
---|
1630 | KDPACKETMANIPULATEHDR RespHdr;
|
---|
1631 | KDPACKETMANIPULATE_XFERMEM64 XferMem64;
|
---|
1632 | uint8_t abMem[_4K];
|
---|
1633 | RT_ZERO(RespHdr); RT_ZERO(XferMem64);
|
---|
1634 |
|
---|
1635 | DBGFADDRESS AddrRead;
|
---|
1636 | uint32_t cbRead = RT_MIN(sizeof(abMem), pPktManip->u.XferMem.cbXferReq);
|
---|
1637 | if (pPktManip->Hdr.idReq == KD_PACKET_MANIPULATE_REQ_READ_VIRT_MEM)
|
---|
1638 | DBGFR3AddrFromFlat(pThis->Dbgc.pUVM, &AddrRead, pPktManip->u.XferMem.u64PtrTarget);
|
---|
1639 | else
|
---|
1640 | DBGFR3AddrFromPhys(pThis->Dbgc.pUVM, &AddrRead, pPktManip->u.XferMem.u64PtrTarget);
|
---|
1641 |
|
---|
1642 | RTSGSEG aRespSegs[3];
|
---|
1643 | uint32_t cSegs = 2; /* Gets incremented when read is successful. */
|
---|
1644 | RespHdr.idReq = pPktManip->Hdr.idReq;
|
---|
1645 | RespHdr.u16CpuLvl = pPktManip->Hdr.u16CpuLvl;
|
---|
1646 | RespHdr.idCpu = pPktManip->Hdr.idCpu;
|
---|
1647 | RespHdr.u32NtStatus = NTSTATUS_SUCCESS;
|
---|
1648 |
|
---|
1649 | XferMem64.u64PtrTarget = pPktManip->u.XferMem.u64PtrTarget;
|
---|
1650 | XferMem64.cbXferReq = pPktManip->u.XferMem.cbXferReq;
|
---|
1651 | XferMem64.cbXfered = (uint32_t)cbRead;
|
---|
1652 |
|
---|
1653 | aRespSegs[0].pvSeg = &RespHdr;
|
---|
1654 | aRespSegs[0].cbSeg = sizeof(RespHdr);
|
---|
1655 | aRespSegs[1].pvSeg = &XferMem64;
|
---|
1656 | aRespSegs[1].cbSeg = sizeof(XferMem64);
|
---|
1657 |
|
---|
1658 | int rc = DBGFR3MemRead(pThis->Dbgc.pUVM, pThis->Dbgc.idCpu, &AddrRead, &abMem[0], cbRead);
|
---|
1659 | if (RT_SUCCESS(rc))
|
---|
1660 | {
|
---|
1661 | cSegs++;
|
---|
1662 | aRespSegs[2].pvSeg = &abMem[0];
|
---|
1663 | aRespSegs[2].cbSeg = cbRead;
|
---|
1664 | }
|
---|
1665 | else
|
---|
1666 | RespHdr.u32NtStatus = NTSTATUS_UNSUCCESSFUL; /** @todo Convert to an appropriate NT status code. */
|
---|
1667 |
|
---|
1668 | return dbgcKdCtxPktSendSg(pThis, KD_PACKET_HDR_SIGNATURE_DATA, KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE,
|
---|
1669 | &aRespSegs[0], cSegs, true /*fAck*/);
|
---|
1670 | }
|
---|
1671 |
|
---|
1672 |
|
---|
1673 | /**
|
---|
1674 | * Processes a read control space 64 request.
|
---|
1675 | *
|
---|
1676 | * @returns VBox status code.
|
---|
1677 | * @param pThis The KD context.
|
---|
1678 | * @param pPktManip The manipulate packet request.
|
---|
1679 | */
|
---|
1680 | static int dbgcKdCtxPktManipulate64ReadCtrlSpace(PKDCTX pThis, PCKDPACKETMANIPULATE64 pPktManip)
|
---|
1681 | {
|
---|
1682 | KDPACKETMANIPULATEHDR RespHdr;
|
---|
1683 | KDPACKETMANIPULATE_XFERCTRLSPACE64 XferCtrlSpace64;
|
---|
1684 | uint8_t abResp[sizeof(NTKCONTEXT64)];
|
---|
1685 | uint32_t cbData = 0;
|
---|
1686 | RT_ZERO(RespHdr); RT_ZERO(XferCtrlSpace64);
|
---|
1687 | RT_ZERO(abResp);
|
---|
1688 |
|
---|
1689 | RTSGSEG aRespSegs[3];
|
---|
1690 | uint32_t cSegs = 2; /* Gets incremented when read is successful. */
|
---|
1691 | RespHdr.idReq = KD_PACKET_MANIPULATE_REQ_READ_CTRL_SPACE;
|
---|
1692 | RespHdr.u16CpuLvl = pPktManip->Hdr.u16CpuLvl;
|
---|
1693 | RespHdr.idCpu = pPktManip->Hdr.idCpu;
|
---|
1694 | RespHdr.u32NtStatus = NTSTATUS_SUCCESS;
|
---|
1695 |
|
---|
1696 | XferCtrlSpace64.u64IdXfer = pPktManip->u.XferCtrlSpace.u64IdXfer;
|
---|
1697 | XferCtrlSpace64.cbXferReq = pPktManip->u.XferCtrlSpace.cbXferReq;
|
---|
1698 |
|
---|
1699 | aRespSegs[0].pvSeg = &RespHdr;
|
---|
1700 | aRespSegs[0].cbSeg = sizeof(RespHdr);
|
---|
1701 | aRespSegs[1].pvSeg = &XferCtrlSpace64;
|
---|
1702 | aRespSegs[1].cbSeg = sizeof(XferCtrlSpace64);
|
---|
1703 |
|
---|
1704 | int rc = VINF_SUCCESS;
|
---|
1705 | switch (pPktManip->u.XferCtrlSpace.u64IdXfer)
|
---|
1706 | {
|
---|
1707 | case KD_PACKET_MANIPULATE64_CTRL_SPACE_ID_KPCR:
|
---|
1708 | {
|
---|
1709 | if (pThis->pIfWinNt)
|
---|
1710 | {
|
---|
1711 | RTGCUINTPTR GCPtrKpcr = 0;
|
---|
1712 |
|
---|
1713 | rc = pThis->pIfWinNt->pfnQueryKpcrForVCpu(pThis->pIfWinNt, pThis->Dbgc.pUVM, RespHdr.idCpu,
|
---|
1714 | &GCPtrKpcr, NULL /*pKpcrb*/);
|
---|
1715 | if (RT_SUCCESS(rc))
|
---|
1716 | memcpy(&abResp[0], &GCPtrKpcr, sizeof(GCPtrKpcr));
|
---|
1717 | }
|
---|
1718 |
|
---|
1719 | cbData = sizeof(RTGCUINTPTR);
|
---|
1720 | break;
|
---|
1721 | }
|
---|
1722 | case KD_PACKET_MANIPULATE64_CTRL_SPACE_ID_KPCRB:
|
---|
1723 | {
|
---|
1724 | if (pThis->pIfWinNt)
|
---|
1725 | {
|
---|
1726 | RTGCUINTPTR GCPtrKpcrb = 0;
|
---|
1727 |
|
---|
1728 | rc = pThis->pIfWinNt->pfnQueryKpcrForVCpu(pThis->pIfWinNt, pThis->Dbgc.pUVM, RespHdr.idCpu,
|
---|
1729 | NULL /*pKpcr*/, &GCPtrKpcrb);
|
---|
1730 | if (RT_SUCCESS(rc))
|
---|
1731 | memcpy(&abResp[0], &GCPtrKpcrb, sizeof(GCPtrKpcrb));
|
---|
1732 | }
|
---|
1733 |
|
---|
1734 | cbData = sizeof(RTGCUINTPTR);
|
---|
1735 | break;
|
---|
1736 | }
|
---|
1737 | case KD_PACKET_MANIPULATE64_CTRL_SPACE_ID_KCTX:
|
---|
1738 | {
|
---|
1739 | rc = dbgcKdCtxQueryNtKCtx64(pThis, RespHdr.idCpu, (PNTKCONTEXT64)&abResp[0], NTCONTEXT64_F_FULL);
|
---|
1740 | if (RT_SUCCESS(rc))
|
---|
1741 | cbData = sizeof(NTKCONTEXT64);
|
---|
1742 | break;
|
---|
1743 | }
|
---|
1744 | case KD_PACKET_MANIPULATE64_CTRL_SPACE_ID_KTHRD:
|
---|
1745 | {
|
---|
1746 | if (pThis->pIfWinNt)
|
---|
1747 | {
|
---|
1748 | RTGCUINTPTR GCPtrCurThrd = 0;
|
---|
1749 |
|
---|
1750 | rc = pThis->pIfWinNt->pfnQueryCurThrdForVCpu(pThis->pIfWinNt, pThis->Dbgc.pUVM, RespHdr.idCpu,
|
---|
1751 | &GCPtrCurThrd);
|
---|
1752 | if (RT_SUCCESS(rc))
|
---|
1753 | memcpy(&abResp[0], &GCPtrCurThrd, sizeof(GCPtrCurThrd));
|
---|
1754 | }
|
---|
1755 |
|
---|
1756 | cbData = sizeof(RTGCUINTPTR);
|
---|
1757 | break;
|
---|
1758 | }
|
---|
1759 | default:
|
---|
1760 | rc = VERR_NOT_SUPPORTED;
|
---|
1761 | break;
|
---|
1762 | }
|
---|
1763 |
|
---|
1764 | if ( RT_SUCCESS(rc)
|
---|
1765 | && cbData)
|
---|
1766 | {
|
---|
1767 | XferCtrlSpace64.cbXfered = RT_MIN(cbData, XferCtrlSpace64.cbXferReq);
|
---|
1768 |
|
---|
1769 | cSegs++;
|
---|
1770 | aRespSegs[2].pvSeg = &abResp[0];
|
---|
1771 | aRespSegs[2].cbSeg = cbData;
|
---|
1772 | }
|
---|
1773 | else if (RT_FAILURE(rc))
|
---|
1774 | RespHdr.u32NtStatus = NTSTATUS_UNSUCCESSFUL; /** @todo Convert to an appropriate NT status code. */
|
---|
1775 |
|
---|
1776 | return dbgcKdCtxPktSendSg(pThis, KD_PACKET_HDR_SIGNATURE_DATA, KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE,
|
---|
1777 | &aRespSegs[0], cSegs, true /*fAck*/);
|
---|
1778 | }
|
---|
1779 |
|
---|
1780 |
|
---|
1781 | /**
|
---|
1782 | * Processes a restore breakpoint 64 request.
|
---|
1783 | *
|
---|
1784 | * @returns VBox status code.
|
---|
1785 | * @param pThis The KD context.
|
---|
1786 | * @param pPktManip The manipulate packet request.
|
---|
1787 | */
|
---|
1788 | static int dbgcKdCtxPktManipulate64RestoreBkpt(PKDCTX pThis, PCKDPACKETMANIPULATE64 pPktManip)
|
---|
1789 | {
|
---|
1790 | KDPACKETMANIPULATEHDR RespHdr;
|
---|
1791 | KDPACKETMANIPULATE_RESTOREBKPT64 RestoreBkpt64;
|
---|
1792 | RT_ZERO(RespHdr); RT_ZERO(RestoreBkpt64);
|
---|
1793 |
|
---|
1794 | RTSGSEG aRespSegs[2];
|
---|
1795 | RespHdr.idReq = KD_PACKET_MANIPULATE_REQ_RESTORE_BKPT;
|
---|
1796 | RespHdr.u16CpuLvl = pPktManip->Hdr.u16CpuLvl;
|
---|
1797 | RespHdr.idCpu = pPktManip->Hdr.idCpu;
|
---|
1798 | RespHdr.u32NtStatus = NTSTATUS_SUCCESS;
|
---|
1799 |
|
---|
1800 | RestoreBkpt64.u32HndBkpt = pPktManip->u.RestoreBkpt.u32HndBkpt;
|
---|
1801 |
|
---|
1802 | aRespSegs[0].pvSeg = &RespHdr;
|
---|
1803 | aRespSegs[0].cbSeg = sizeof(RespHdr);
|
---|
1804 | aRespSegs[1].pvSeg = &RestoreBkpt64;
|
---|
1805 | aRespSegs[1].cbSeg = sizeof(RestoreBkpt64);
|
---|
1806 |
|
---|
1807 | /** @todo */
|
---|
1808 |
|
---|
1809 | return dbgcKdCtxPktSendSg(pThis, KD_PACKET_HDR_SIGNATURE_DATA, KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE,
|
---|
1810 | &aRespSegs[0], RT_ELEMENTS(aRespSegs), true /*fAck*/);
|
---|
1811 | }
|
---|
1812 |
|
---|
1813 |
|
---|
1814 | /**
|
---|
1815 | * Processes a get context extended 64 request.
|
---|
1816 | *
|
---|
1817 | * @returns VBox status code.
|
---|
1818 | * @param pThis The KD context.
|
---|
1819 | * @param pPktManip The manipulate packet request.
|
---|
1820 | */
|
---|
1821 | static int dbgcKdCtxPktManipulate64GetContextEx(PKDCTX pThis, PCKDPACKETMANIPULATE64 pPktManip)
|
---|
1822 | {
|
---|
1823 | KDPACKETMANIPULATEHDR RespHdr;
|
---|
1824 | KDPACKETMANIPULATE_CONTEXTEX ContextEx;
|
---|
1825 | NTCONTEXT64 NtCtx;
|
---|
1826 | RT_ZERO(RespHdr); RT_ZERO(ContextEx);
|
---|
1827 |
|
---|
1828 | RTSGSEG aRespSegs[3];
|
---|
1829 | uint32_t cSegs = 2;
|
---|
1830 | RespHdr.idReq = KD_PACKET_MANIPULATE_REQ_GET_CONTEXT_EX;
|
---|
1831 | RespHdr.u16CpuLvl = pPktManip->Hdr.u16CpuLvl;
|
---|
1832 | RespHdr.idCpu = pPktManip->Hdr.idCpu;
|
---|
1833 | RespHdr.u32NtStatus = NTSTATUS_UNSUCCESSFUL;
|
---|
1834 |
|
---|
1835 | ContextEx.offStart = pPktManip->u.ContextEx.offStart;
|
---|
1836 | ContextEx.cbXfer = pPktManip->u.ContextEx.cbXfer;
|
---|
1837 | ContextEx.cbXfered = 0;
|
---|
1838 |
|
---|
1839 | aRespSegs[0].pvSeg = &RespHdr;
|
---|
1840 | aRespSegs[0].cbSeg = sizeof(RespHdr);
|
---|
1841 | aRespSegs[1].pvSeg = &ContextEx;
|
---|
1842 | aRespSegs[1].cbSeg = sizeof(ContextEx);
|
---|
1843 |
|
---|
1844 | int rc = dbgcKdCtxQueryNtCtx64(pThis, pPktManip->Hdr.idCpu, &NtCtx, NTCONTEXT64_F_FULL);
|
---|
1845 | if ( RT_SUCCESS(rc)
|
---|
1846 | && pPktManip->u.ContextEx.offStart < sizeof(NtCtx))
|
---|
1847 | {
|
---|
1848 | RespHdr.u32NtStatus = NTSTATUS_SUCCESS;
|
---|
1849 | ContextEx.cbXfered = RT_MIN(sizeof(NtCtx) - ContextEx.offStart, ContextEx.cbXfer);
|
---|
1850 |
|
---|
1851 | aRespSegs[2].pvSeg = (uint8_t *)&NtCtx + ContextEx.offStart;
|
---|
1852 | aRespSegs[2].cbSeg = ContextEx.cbXfered;
|
---|
1853 | cSegs++;
|
---|
1854 | }
|
---|
1855 |
|
---|
1856 | return dbgcKdCtxPktSendSg(pThis, KD_PACKET_HDR_SIGNATURE_DATA, KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE,
|
---|
1857 | &aRespSegs[0], cSegs, true /*fAck*/);
|
---|
1858 | }
|
---|
1859 |
|
---|
1860 |
|
---|
1861 | /**
|
---|
1862 | * Processes a manipulate packet.
|
---|
1863 | *
|
---|
1864 | * @returns VBox status code.
|
---|
1865 | * @param pThis The KD context.
|
---|
1866 | */
|
---|
1867 | static int dbgcKdCtxPktManipulate64Process(PKDCTX pThis)
|
---|
1868 | {
|
---|
1869 | int rc = VINF_SUCCESS;
|
---|
1870 | PCKDPACKETMANIPULATE64 pPktManip = (PCKDPACKETMANIPULATE64)&pThis->abBody[0];
|
---|
1871 |
|
---|
1872 | switch (pPktManip->Hdr.idReq)
|
---|
1873 | {
|
---|
1874 | case KD_PACKET_MANIPULATE_REQ_GET_VERSION:
|
---|
1875 | {
|
---|
1876 | rc = dbgcKdCtxPktManipulate64GetVersion(pThis, pPktManip);
|
---|
1877 | break;
|
---|
1878 | }
|
---|
1879 | case KD_PACKET_MANIPULATE_REQ_READ_VIRT_MEM:
|
---|
1880 | case KD_PACKET_MANIPULATE_REQ_READ_PHYS_MEM:
|
---|
1881 | {
|
---|
1882 | rc = dbgcKdCtxPktManipulate64ReadMem(pThis, pPktManip);
|
---|
1883 | break;
|
---|
1884 | }
|
---|
1885 | case KD_PACKET_MANIPULATE_REQ_READ_CTRL_SPACE:
|
---|
1886 | {
|
---|
1887 | rc = dbgcKdCtxPktManipulate64ReadCtrlSpace(pThis, pPktManip);
|
---|
1888 | break;
|
---|
1889 | }
|
---|
1890 | case KD_PACKET_MANIPULATE_REQ_RESTORE_BKPT:
|
---|
1891 | {
|
---|
1892 | rc = dbgcKdCtxPktManipulate64RestoreBkpt(pThis, pPktManip);
|
---|
1893 | break;
|
---|
1894 | }
|
---|
1895 | case KD_PACKET_MANIPULATE_REQ_CLEAR_ALL_INTERNAL_BKPT:
|
---|
1896 | /* WinDbg doesn't seem to expect an answer apart from the ACK here. */
|
---|
1897 | break;
|
---|
1898 | case KD_PACKET_MANIPULATE_REQ_GET_CONTEXT_EX:
|
---|
1899 | {
|
---|
1900 | rc = dbgcKdCtxPktManipulate64GetContextEx(pThis, pPktManip);
|
---|
1901 | break;
|
---|
1902 | }
|
---|
1903 | default:
|
---|
1904 | KDPACKETMANIPULATEHDR RespHdr;
|
---|
1905 | RT_ZERO(RespHdr);
|
---|
1906 |
|
---|
1907 | RespHdr.idReq = pPktManip->Hdr.idReq;
|
---|
1908 | RespHdr.u16CpuLvl = pPktManip->Hdr.u16CpuLvl;
|
---|
1909 | RespHdr.idCpu = pPktManip->Hdr.idCpu;
|
---|
1910 | RespHdr.u32NtStatus = NTSTATUS_NOT_IMPLEMENTED;
|
---|
1911 | rc = dbgcKdCtxPktSend(pThis, KD_PACKET_HDR_SIGNATURE_DATA, KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE,
|
---|
1912 | &RespHdr, sizeof(RespHdr), true /*fAck*/);
|
---|
1913 | break;
|
---|
1914 | }
|
---|
1915 |
|
---|
1916 | return rc;
|
---|
1917 | }
|
---|
1918 |
|
---|
1919 |
|
---|
1920 | /**
|
---|
1921 | * Processes a fully received packet.
|
---|
1922 | *
|
---|
1923 | * @returns VBox status code.
|
---|
1924 | * @param pThis The KD context.
|
---|
1925 | */
|
---|
1926 | static int dbgcKdCtxPktProcess(PKDCTX pThis)
|
---|
1927 | {
|
---|
1928 | int rc = VINF_SUCCESS;
|
---|
1929 |
|
---|
1930 | pThis->fBreakinRecv = false;
|
---|
1931 |
|
---|
1932 | /* Verify checksum. */
|
---|
1933 | if (dbgcKdPktChkSumGen(&pThis->abBody[0], pThis->PktHdr.Fields.cbBody) == pThis->PktHdr.Fields.u32ChkSum)
|
---|
1934 | {
|
---|
1935 | /** @todo Check packet id. */
|
---|
1936 | if (pThis->PktHdr.Fields.u16SubType != KD_PACKET_HDR_SUB_TYPE_RESET)
|
---|
1937 | {
|
---|
1938 | pThis->idPktNext = pThis->PktHdr.Fields.idPacket;
|
---|
1939 | rc = dbgcKdCtxPktSendAck(pThis);
|
---|
1940 | }
|
---|
1941 | if (RT_SUCCESS(rc))
|
---|
1942 | {
|
---|
1943 | #ifdef LOG_ENABLED
|
---|
1944 | RTSGSEG Seg;
|
---|
1945 | Seg.pvSeg = &pThis->abBody[0];
|
---|
1946 | Seg.cbSeg = pThis->PktHdr.Fields.cbBody;
|
---|
1947 | dbgcKdPktDump(&pThis->PktHdr.Fields, &Seg, 1 /*cSegs*/, true /*fRx*/);
|
---|
1948 | #endif
|
---|
1949 |
|
---|
1950 | switch (pThis->PktHdr.Fields.u16SubType)
|
---|
1951 | {
|
---|
1952 | case KD_PACKET_HDR_SUB_TYPE_RESET:
|
---|
1953 | {
|
---|
1954 | pThis->idPktNext = 0;
|
---|
1955 | rc = dbgcKdCtxPktSendReset(pThis);
|
---|
1956 | if (RT_SUCCESS(rc))
|
---|
1957 | {
|
---|
1958 | rc = DBGFR3Halt(pThis->Dbgc.pUVM, VMCPUID_ALL);
|
---|
1959 | if (rc == VWRN_DBGF_ALREADY_HALTED)
|
---|
1960 | rc = dbgcKdCtxStateChangeSend(pThis, DBGFEVENT_HALT_DONE);
|
---|
1961 | }
|
---|
1962 | pThis->idPktNext = KD_PACKET_HDR_ID_RESET;
|
---|
1963 | break;
|
---|
1964 | }
|
---|
1965 | case KD_PACKET_HDR_SUB_TYPE_STATE_MANIPULATE:
|
---|
1966 | {
|
---|
1967 | CPUMMODE enmMode = DBGCCmdHlpGetCpuMode(&pThis->Dbgc.CmdHlp);
|
---|
1968 | switch (enmMode)
|
---|
1969 | {
|
---|
1970 | case CPUMMODE_PROTECTED:
|
---|
1971 | {
|
---|
1972 | rc = VERR_NOT_IMPLEMENTED;
|
---|
1973 | break;
|
---|
1974 | }
|
---|
1975 | case CPUMMODE_LONG:
|
---|
1976 | {
|
---|
1977 | pThis->idPktNext = pThis->PktHdr.Fields.idPacket ^ 0x1;
|
---|
1978 | rc = dbgcKdCtxPktManipulate64Process(pThis);
|
---|
1979 | break;
|
---|
1980 | }
|
---|
1981 | case CPUMMODE_REAL:
|
---|
1982 | default:
|
---|
1983 | rc = VERR_NOT_SUPPORTED;
|
---|
1984 | break;
|
---|
1985 | }
|
---|
1986 | break;
|
---|
1987 | }
|
---|
1988 | case KD_PACKET_HDR_SUB_TYPE_ACKNOWLEDGE:
|
---|
1989 | case KD_PACKET_HDR_SUB_TYPE_RESEND:
|
---|
1990 | {
|
---|
1991 | /* Don't do anything. */
|
---|
1992 | rc = VINF_SUCCESS;
|
---|
1993 | break;
|
---|
1994 | }
|
---|
1995 | default:
|
---|
1996 | rc = VERR_NOT_IMPLEMENTED;
|
---|
1997 | }
|
---|
1998 | }
|
---|
1999 | }
|
---|
2000 | else
|
---|
2001 | {
|
---|
2002 | pThis->idPktNext = pThis->PktHdr.Fields.idPacket;
|
---|
2003 | rc = dbgcKdCtxPktSendResend(pThis);
|
---|
2004 | }
|
---|
2005 |
|
---|
2006 | if (pThis->fBreakinRecv)
|
---|
2007 | {
|
---|
2008 | pThis->fBreakinRecv = false;
|
---|
2009 | rc = DBGFR3Halt(pThis->Dbgc.pUVM, VMCPUID_ALL);
|
---|
2010 | if (rc == VWRN_DBGF_ALREADY_HALTED)
|
---|
2011 | rc = dbgcKdCtxStateChangeSend(pThis, DBGFEVENT_HALT_DONE);
|
---|
2012 | }
|
---|
2013 |
|
---|
2014 | /* Next packet. */
|
---|
2015 | dbgcKdCtxPktRecvReset(pThis);
|
---|
2016 | return rc;
|
---|
2017 | }
|
---|
2018 |
|
---|
2019 |
|
---|
2020 | /**
|
---|
2021 | * Processes the received data based on the current state.
|
---|
2022 | *
|
---|
2023 | * @returns VBox status code.
|
---|
2024 | * @param pThis The KD context.
|
---|
2025 | */
|
---|
2026 | static int dbgcKdCtxRecvDataProcess(PKDCTX pThis)
|
---|
2027 | {
|
---|
2028 | int rc = VINF_SUCCESS;
|
---|
2029 |
|
---|
2030 | switch (pThis->enmState)
|
---|
2031 | {
|
---|
2032 | case KDRECVSTATE_PACKET_HDR_FIRST_BYTE:
|
---|
2033 | {
|
---|
2034 | /* Does it look like a valid packet start?. */
|
---|
2035 | if ( pThis->PktHdr.ab[0] == KD_PACKET_HDR_SIGNATURE_DATA_BYTE
|
---|
2036 | || pThis->PktHdr.ab[0] == KD_PACKET_HDR_SIGNATURE_CONTROL_BYTE)
|
---|
2037 | {
|
---|
2038 | pThis->pbRecv = &pThis->PktHdr.ab[1];
|
---|
2039 | pThis->cbRecvLeft = sizeof(pThis->PktHdr.ab[1]);
|
---|
2040 | pThis->enmState = KDRECVSTATE_PACKET_HDR_SECOND_BYTE;
|
---|
2041 | pThis->msRecvTimeout = DBGC_KD_RECV_TIMEOUT_MS;
|
---|
2042 | }
|
---|
2043 | else if (pThis->PktHdr.ab[0] == KD_PACKET_HDR_SIGNATURE_BREAKIN_BYTE)
|
---|
2044 | {
|
---|
2045 | rc = DBGFR3Halt(pThis->Dbgc.pUVM, VMCPUID_ALL);
|
---|
2046 | if (rc == VWRN_DBGF_ALREADY_HALTED)
|
---|
2047 | rc = dbgcKdCtxStateChangeSend(pThis, DBGFEVENT_HALT_DONE);
|
---|
2048 | dbgcKdCtxPktRecvReset(pThis);
|
---|
2049 | }
|
---|
2050 | /* else: Ignore and continue. */
|
---|
2051 | break;
|
---|
2052 | }
|
---|
2053 | case KDRECVSTATE_PACKET_HDR_SECOND_BYTE:
|
---|
2054 | {
|
---|
2055 | /*
|
---|
2056 | * If the first and second byte differ there might be a single breakin
|
---|
2057 | * packet byte received and this is actually the start of a new packet.
|
---|
2058 | */
|
---|
2059 | if (pThis->PktHdr.ab[0] != pThis->PktHdr.ab[1])
|
---|
2060 | {
|
---|
2061 | if (pThis->PktHdr.ab[0] == KD_PACKET_HDR_SIGNATURE_BREAKIN_BYTE)
|
---|
2062 | {
|
---|
2063 | /* Halt the VM and rearrange the packet receiving state machine. */
|
---|
2064 | LogFlow(("DbgKd: Halting VM!\n"));
|
---|
2065 |
|
---|
2066 | rc = DBGFR3Halt(pThis->Dbgc.pUVM, VMCPUID_ALL);
|
---|
2067 | pThis->PktHdr.ab[0] = pThis->PktHdr.ab[1]; /* Overwrite the first byte with the new start. */
|
---|
2068 | pThis->pbRecv = &pThis->PktHdr.ab[1];
|
---|
2069 | pThis->cbRecvLeft = sizeof(pThis->PktHdr.ab[1]);
|
---|
2070 | }
|
---|
2071 | else
|
---|
2072 | rc = VERR_NET_PROTOCOL_ERROR; /* Refuse talking to the remote end any further. */
|
---|
2073 | }
|
---|
2074 | else
|
---|
2075 | {
|
---|
2076 | /* Normal packet receive continues with the rest of the header. */
|
---|
2077 | pThis->pbRecv = &pThis->PktHdr.ab[2];
|
---|
2078 | pThis->cbRecvLeft = sizeof(pThis->PktHdr.Fields) - 2;
|
---|
2079 | pThis->enmState = KDRECVSTATE_PACKET_HDR;
|
---|
2080 | }
|
---|
2081 | break;
|
---|
2082 | }
|
---|
2083 | case KDRECVSTATE_PACKET_HDR:
|
---|
2084 | {
|
---|
2085 | if ( dbgcKdPktHdrValidate(&pThis->PktHdr.Fields)
|
---|
2086 | && pThis->PktHdr.Fields.cbBody <= sizeof(pThis->abBody))
|
---|
2087 | {
|
---|
2088 | /* Start receiving the body. */
|
---|
2089 | if (pThis->PktHdr.Fields.cbBody)
|
---|
2090 | {
|
---|
2091 | pThis->pbRecv = &pThis->abBody[0];
|
---|
2092 | pThis->cbRecvLeft = pThis->PktHdr.Fields.cbBody;
|
---|
2093 | pThis->enmState = KDRECVSTATE_PACKET_BODY;
|
---|
2094 | }
|
---|
2095 | else /* No body means no trailer byte it looks like. */
|
---|
2096 | rc = dbgcKdCtxPktProcess(pThis);
|
---|
2097 | }
|
---|
2098 | else
|
---|
2099 | rc = VERR_NET_PROTOCOL_ERROR;
|
---|
2100 | break;
|
---|
2101 | }
|
---|
2102 | case KDRECVSTATE_PACKET_BODY:
|
---|
2103 | {
|
---|
2104 | pThis->enmState = KDRECVSTATE_PACKET_TRAILER;
|
---|
2105 | pThis->bTrailer = 0;
|
---|
2106 | pThis->pbRecv = &pThis->bTrailer;
|
---|
2107 | pThis->cbRecvLeft = sizeof(pThis->bTrailer);
|
---|
2108 | break;
|
---|
2109 | }
|
---|
2110 | case KDRECVSTATE_PACKET_TRAILER:
|
---|
2111 | {
|
---|
2112 | if (pThis->bTrailer == KD_PACKET_TRAILING_BYTE)
|
---|
2113 | rc = dbgcKdCtxPktProcess(pThis);
|
---|
2114 | else
|
---|
2115 | rc = VERR_NET_PROTOCOL_ERROR;
|
---|
2116 | break;
|
---|
2117 | }
|
---|
2118 | default:
|
---|
2119 | AssertMsgFailed(("Invalid receive state %d\n", pThis->enmState));
|
---|
2120 | }
|
---|
2121 |
|
---|
2122 | return rc;
|
---|
2123 | }
|
---|
2124 |
|
---|
2125 |
|
---|
2126 | /**
|
---|
2127 | * Receive data and processes complete packets.
|
---|
2128 | *
|
---|
2129 | * @returns Status code.
|
---|
2130 | * @param pThis The KD context.
|
---|
2131 | */
|
---|
2132 | static int dbgcKdCtxRecv(PKDCTX pThis)
|
---|
2133 | {
|
---|
2134 | int rc = VINF_SUCCESS;
|
---|
2135 |
|
---|
2136 | LogFlowFunc(("pThis=%p{.cbRecvLeft=%zu}\n", pThis, pThis->cbRecvLeft));
|
---|
2137 |
|
---|
2138 | if (pThis->cbRecvLeft)
|
---|
2139 | {
|
---|
2140 | size_t cbRead = 0;
|
---|
2141 | rc = pThis->Dbgc.pBack->pfnRead(pThis->Dbgc.pBack, pThis->pbRecv, pThis->cbRecvLeft, &cbRead);
|
---|
2142 | if (RT_SUCCESS(rc))
|
---|
2143 | {
|
---|
2144 | pThis->tsRecvLast = RTTimeMilliTS();
|
---|
2145 | pThis->cbRecvLeft -= cbRead;
|
---|
2146 | pThis->pbRecv += cbRead;
|
---|
2147 | if (!pThis->cbRecvLeft)
|
---|
2148 | rc = dbgcKdCtxRecvDataProcess(pThis);
|
---|
2149 | }
|
---|
2150 | }
|
---|
2151 |
|
---|
2152 | LogFlowFunc(("returns rc=%Rrc\n", rc));
|
---|
2153 | return rc;
|
---|
2154 | }
|
---|
2155 |
|
---|
2156 |
|
---|
2157 | /**
|
---|
2158 | * Processes debugger events.
|
---|
2159 | *
|
---|
2160 | * @returns VBox status code.
|
---|
2161 | * @param pThis The KD context data.
|
---|
2162 | * @param pEvent Pointer to event data.
|
---|
2163 | */
|
---|
2164 | static int dbgcKdCtxProcessEvent(PKDCTX pThis, PCDBGFEVENT pEvent)
|
---|
2165 | {
|
---|
2166 | /*
|
---|
2167 | * Process the event.
|
---|
2168 | */
|
---|
2169 | //PDBGC pDbgc = &pThis->Dbgc;
|
---|
2170 | pThis->Dbgc.pszScratch = &pThis->Dbgc.achInput[0];
|
---|
2171 | pThis->Dbgc.iArg = 0;
|
---|
2172 | int rc = VINF_SUCCESS;
|
---|
2173 | switch (pEvent->enmType)
|
---|
2174 | {
|
---|
2175 | /*
|
---|
2176 | * The first part is events we have initiated with commands.
|
---|
2177 | */
|
---|
2178 | case DBGFEVENT_HALT_DONE:
|
---|
2179 | {
|
---|
2180 | rc = dbgcKdCtxStateChangeSend(pThis, pEvent->enmType);
|
---|
2181 | break;
|
---|
2182 | }
|
---|
2183 |
|
---|
2184 | /*
|
---|
2185 | * The second part is events which can occur at any time.
|
---|
2186 | */
|
---|
2187 | #if 0
|
---|
2188 | case DBGFEVENT_FATAL_ERROR:
|
---|
2189 | {
|
---|
2190 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbf event: Fatal error! (%s)\n",
|
---|
2191 | dbgcGetEventCtx(pEvent->enmCtx));
|
---|
2192 | if (RT_SUCCESS(rc))
|
---|
2193 | rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
|
---|
2194 | break;
|
---|
2195 | }
|
---|
2196 | #endif
|
---|
2197 |
|
---|
2198 | case DBGFEVENT_BREAKPOINT:
|
---|
2199 | case DBGFEVENT_BREAKPOINT_IO:
|
---|
2200 | case DBGFEVENT_BREAKPOINT_MMIO:
|
---|
2201 | case DBGFEVENT_BREAKPOINT_HYPER:
|
---|
2202 | case DBGFEVENT_STEPPED:
|
---|
2203 | case DBGFEVENT_STEPPED_HYPER:
|
---|
2204 | {
|
---|
2205 | rc = dbgcKdCtxStateChangeSend(pThis, pEvent->enmType);
|
---|
2206 | break;
|
---|
2207 | }
|
---|
2208 |
|
---|
2209 | #if 0
|
---|
2210 | case DBGFEVENT_ASSERTION_HYPER:
|
---|
2211 | {
|
---|
2212 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL,
|
---|
2213 | "\ndbgf event: Hypervisor Assertion! (%s)\n"
|
---|
2214 | "%s"
|
---|
2215 | "%s"
|
---|
2216 | "\n",
|
---|
2217 | dbgcGetEventCtx(pEvent->enmCtx),
|
---|
2218 | pEvent->u.Assert.pszMsg1,
|
---|
2219 | pEvent->u.Assert.pszMsg2);
|
---|
2220 | if (RT_SUCCESS(rc))
|
---|
2221 | rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
|
---|
2222 | break;
|
---|
2223 | }
|
---|
2224 |
|
---|
2225 | case DBGFEVENT_DEV_STOP:
|
---|
2226 | {
|
---|
2227 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL,
|
---|
2228 | "\n"
|
---|
2229 | "dbgf event: DBGFSTOP (%s)\n"
|
---|
2230 | "File: %s\n"
|
---|
2231 | "Line: %d\n"
|
---|
2232 | "Function: %s\n",
|
---|
2233 | dbgcGetEventCtx(pEvent->enmCtx),
|
---|
2234 | pEvent->u.Src.pszFile,
|
---|
2235 | pEvent->u.Src.uLine,
|
---|
2236 | pEvent->u.Src.pszFunction);
|
---|
2237 | if (RT_SUCCESS(rc) && pEvent->u.Src.pszMessage && *pEvent->u.Src.pszMessage)
|
---|
2238 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL,
|
---|
2239 | "Message: %s\n",
|
---|
2240 | pEvent->u.Src.pszMessage);
|
---|
2241 | if (RT_SUCCESS(rc))
|
---|
2242 | rc = pDbgc->CmdHlp.pfnExec(&pDbgc->CmdHlp, "r");
|
---|
2243 | break;
|
---|
2244 | }
|
---|
2245 |
|
---|
2246 |
|
---|
2247 | case DBGFEVENT_INVALID_COMMAND:
|
---|
2248 | {
|
---|
2249 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf/dbgc error: Invalid command event!\n");
|
---|
2250 | break;
|
---|
2251 | }
|
---|
2252 | #endif
|
---|
2253 |
|
---|
2254 | case DBGFEVENT_POWERING_OFF:
|
---|
2255 | {
|
---|
2256 | pThis->Dbgc.fReady = false;
|
---|
2257 | pThis->Dbgc.pBack->pfnSetReady(pThis->Dbgc.pBack, false);
|
---|
2258 | rc = VERR_GENERAL_FAILURE;
|
---|
2259 | break;
|
---|
2260 | }
|
---|
2261 |
|
---|
2262 | #if 0
|
---|
2263 | default:
|
---|
2264 | {
|
---|
2265 | /*
|
---|
2266 | * Probably a generic event. Look it up to find its name.
|
---|
2267 | */
|
---|
2268 | PCDBGCSXEVT pEvtDesc = dbgcEventLookup(pEvent->enmType);
|
---|
2269 | if (pEvtDesc)
|
---|
2270 | {
|
---|
2271 | if (pEvtDesc->enmKind == kDbgcSxEventKind_Interrupt)
|
---|
2272 | {
|
---|
2273 | Assert(pEvtDesc->pszDesc);
|
---|
2274 | Assert(pEvent->u.Generic.cArgs == 1);
|
---|
2275 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s no %#llx! (%s)\n",
|
---|
2276 | pEvtDesc->pszDesc, pEvent->u.Generic.auArgs[0], pEvtDesc->pszName);
|
---|
2277 | }
|
---|
2278 | else if (pEvtDesc->fFlags & DBGCSXEVT_F_BUGCHECK)
|
---|
2279 | {
|
---|
2280 | Assert(pEvent->u.Generic.cArgs >= 5);
|
---|
2281 | char szDetails[512];
|
---|
2282 | DBGFR3FormatBugCheck(pDbgc->pUVM, szDetails, sizeof(szDetails), pEvent->u.Generic.auArgs[0],
|
---|
2283 | pEvent->u.Generic.auArgs[1], pEvent->u.Generic.auArgs[2],
|
---|
2284 | pEvent->u.Generic.auArgs[3], pEvent->u.Generic.auArgs[4]);
|
---|
2285 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s %s%s!\n%s", pEvtDesc->pszName,
|
---|
2286 | pEvtDesc->pszDesc ? "- " : "", pEvtDesc->pszDesc ? pEvtDesc->pszDesc : "",
|
---|
2287 | szDetails);
|
---|
2288 | }
|
---|
2289 | else if ( (pEvtDesc->fFlags & DBGCSXEVT_F_TAKE_ARG)
|
---|
2290 | || pEvent->u.Generic.cArgs > 1
|
---|
2291 | || ( pEvent->u.Generic.cArgs == 1
|
---|
2292 | && pEvent->u.Generic.auArgs[0] != 0))
|
---|
2293 | {
|
---|
2294 | if (pEvtDesc->pszDesc)
|
---|
2295 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s - %s!",
|
---|
2296 | pEvtDesc->pszName, pEvtDesc->pszDesc);
|
---|
2297 | else
|
---|
2298 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s!", pEvtDesc->pszName);
|
---|
2299 | if (pEvent->u.Generic.cArgs <= 1)
|
---|
2300 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, " arg=%#llx\n", pEvent->u.Generic.auArgs[0]);
|
---|
2301 | else
|
---|
2302 | {
|
---|
2303 | for (uint32_t i = 0; i < pEvent->u.Generic.cArgs; i++)
|
---|
2304 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, " args[%u]=%#llx", i, pEvent->u.Generic.auArgs[i]);
|
---|
2305 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\n");
|
---|
2306 | }
|
---|
2307 | }
|
---|
2308 | else
|
---|
2309 | {
|
---|
2310 | if (pEvtDesc->pszDesc)
|
---|
2311 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s - %s!\n",
|
---|
2312 | pEvtDesc->pszName, pEvtDesc->pszDesc);
|
---|
2313 | else
|
---|
2314 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf event: %s!\n", pEvtDesc->pszName);
|
---|
2315 | }
|
---|
2316 | }
|
---|
2317 | else
|
---|
2318 | rc = pDbgc->CmdHlp.pfnPrintf(&pDbgc->CmdHlp, NULL, "\ndbgf/dbgc error: Unknown event %d!\n", pEvent->enmType);
|
---|
2319 | break;
|
---|
2320 | }
|
---|
2321 | #else
|
---|
2322 | default:
|
---|
2323 | rc = VERR_NOT_IMPLEMENTED;
|
---|
2324 | break;
|
---|
2325 | #endif
|
---|
2326 | }
|
---|
2327 |
|
---|
2328 | return rc;
|
---|
2329 | }
|
---|
2330 |
|
---|
2331 |
|
---|
2332 | /**
|
---|
2333 | * Handle a receive timeout.
|
---|
2334 | *
|
---|
2335 | * @returns VBox status code.
|
---|
2336 | * @param pThis Pointer to the KD context.
|
---|
2337 | */
|
---|
2338 | static int dbgcKdCtxRecvTimeout(PKDCTX pThis)
|
---|
2339 | {
|
---|
2340 | int rc = VINF_SUCCESS;
|
---|
2341 |
|
---|
2342 | LogFlowFunc(("pThis=%p\n", pThis));
|
---|
2343 |
|
---|
2344 | /*
|
---|
2345 | * If a single breakin packet byte was received but the header is otherwise incomplete
|
---|
2346 | * the VM is halted and a state change will be sent in the event processing loop.
|
---|
2347 | */
|
---|
2348 | if ( pThis->enmState == KDRECVSTATE_PACKET_HDR_SECOND_BYTE
|
---|
2349 | && pThis->PktHdr.ab[0] == KD_PACKET_HDR_SIGNATURE_BREAKIN_BYTE)
|
---|
2350 | {
|
---|
2351 | LogFlow(("DbgKd: Halting VM!\n"));
|
---|
2352 | rc = DBGFR3Halt(pThis->Dbgc.pUVM, VMCPUID_ALL);
|
---|
2353 | }
|
---|
2354 | else /* Send a reset packet (@todo Figure out the semantics in this case exactly). */
|
---|
2355 | rc = dbgcKdCtxPktSendReset(pThis);
|
---|
2356 |
|
---|
2357 | dbgcKdCtxPktRecvReset(pThis);
|
---|
2358 |
|
---|
2359 | LogFlowFunc(("rc=%Rrc\n", rc));
|
---|
2360 | return rc;
|
---|
2361 | }
|
---|
2362 |
|
---|
2363 |
|
---|
2364 | /**
|
---|
2365 | * Run the debugger console.
|
---|
2366 | *
|
---|
2367 | * @returns VBox status code.
|
---|
2368 | * @param pThis Pointer to the KD context.
|
---|
2369 | */
|
---|
2370 | int dbgcKdRun(PKDCTX pThis)
|
---|
2371 | {
|
---|
2372 | /*
|
---|
2373 | * We're ready for commands now.
|
---|
2374 | */
|
---|
2375 | pThis->Dbgc.fReady = true;
|
---|
2376 | pThis->Dbgc.pBack->pfnSetReady(pThis->Dbgc.pBack, true);
|
---|
2377 |
|
---|
2378 | /*
|
---|
2379 | * Main Debugger Loop.
|
---|
2380 | *
|
---|
2381 | * This loop will either block on waiting for input or on waiting on
|
---|
2382 | * debug events. If we're forwarding the log we cannot wait for long
|
---|
2383 | * before we must flush the log.
|
---|
2384 | */
|
---|
2385 | int rc;
|
---|
2386 | for (;;)
|
---|
2387 | {
|
---|
2388 | rc = VERR_SEM_OUT_OF_TURN;
|
---|
2389 | if (pThis->Dbgc.pUVM)
|
---|
2390 | rc = DBGFR3QueryWaitable(pThis->Dbgc.pUVM);
|
---|
2391 |
|
---|
2392 | if (RT_SUCCESS(rc))
|
---|
2393 | {
|
---|
2394 | /*
|
---|
2395 | * Wait for a debug event.
|
---|
2396 | */
|
---|
2397 | DBGFEVENT Evt;
|
---|
2398 | rc = DBGFR3EventWait(pThis->Dbgc.pUVM, 32, &Evt);
|
---|
2399 | if (RT_SUCCESS(rc))
|
---|
2400 | {
|
---|
2401 | rc = dbgcKdCtxProcessEvent(pThis, &Evt);
|
---|
2402 | if (RT_FAILURE(rc))
|
---|
2403 | break;
|
---|
2404 | }
|
---|
2405 | else if (rc != VERR_TIMEOUT)
|
---|
2406 | break;
|
---|
2407 |
|
---|
2408 | /*
|
---|
2409 | * Check for input.
|
---|
2410 | */
|
---|
2411 | if (pThis->Dbgc.pBack->pfnInput(pThis->Dbgc.pBack, 0))
|
---|
2412 | {
|
---|
2413 | rc = dbgcKdCtxRecv(pThis);
|
---|
2414 | if (RT_FAILURE(rc))
|
---|
2415 | break;
|
---|
2416 | }
|
---|
2417 | }
|
---|
2418 | else if (rc == VERR_SEM_OUT_OF_TURN)
|
---|
2419 | {
|
---|
2420 | /*
|
---|
2421 | * Wait for input.
|
---|
2422 | */
|
---|
2423 | if (pThis->Dbgc.pBack->pfnInput(pThis->Dbgc.pBack, 1000))
|
---|
2424 | {
|
---|
2425 | rc = dbgcKdCtxRecv(pThis);
|
---|
2426 | if (RT_FAILURE(rc))
|
---|
2427 | break;
|
---|
2428 | }
|
---|
2429 | else if ( pThis->msRecvTimeout != RT_INDEFINITE_WAIT
|
---|
2430 | && (RTTimeMilliTS() - pThis->tsRecvLast >= pThis->msRecvTimeout))
|
---|
2431 | rc = dbgcKdCtxRecvTimeout(pThis);
|
---|
2432 | }
|
---|
2433 | else
|
---|
2434 | break;
|
---|
2435 | }
|
---|
2436 |
|
---|
2437 | return rc;
|
---|
2438 | }
|
---|
2439 |
|
---|
2440 |
|
---|
2441 | /**
|
---|
2442 | * Creates a KD context instance with the given backend.
|
---|
2443 | *
|
---|
2444 | * @returns VBox status code.
|
---|
2445 | * @param ppKdCtx Where to store the pointer to the KD stub context instance on success.
|
---|
2446 | * @param pBack The backend to use for I/O.
|
---|
2447 | * @param fFlags Flags controlling the behavior.
|
---|
2448 | */
|
---|
2449 | static int dbgcKdCtxCreate(PPKDCTX ppKdCtx, PDBGCBACK pBack, unsigned fFlags)
|
---|
2450 | {
|
---|
2451 | /*
|
---|
2452 | * Validate input.
|
---|
2453 | */
|
---|
2454 | AssertPtrReturn(pBack, VERR_INVALID_POINTER);
|
---|
2455 | AssertMsgReturn(!fFlags, ("%#x", fFlags), VERR_INVALID_PARAMETER);
|
---|
2456 |
|
---|
2457 | /*
|
---|
2458 | * Allocate and initialize.
|
---|
2459 | */
|
---|
2460 | PKDCTX pThis = (PKDCTX)RTMemAllocZ(sizeof(*pThis));
|
---|
2461 | if (!pThis)
|
---|
2462 | return VERR_NO_MEMORY;
|
---|
2463 |
|
---|
2464 | dbgcInitCmdHlp(&pThis->Dbgc);
|
---|
2465 | /*
|
---|
2466 | * This is compied from the native debug console (will be used for monitor commands)
|
---|
2467 | * in DBGCConsole.cpp. Try to keep both functions in sync.
|
---|
2468 | */
|
---|
2469 | pThis->Dbgc.pBack = pBack;
|
---|
2470 | /*pThis->Dbgc.pfnOutput = dbgcOutputGdb;*/
|
---|
2471 | pThis->Dbgc.pvOutputUser = pThis;
|
---|
2472 | pThis->Dbgc.pVM = NULL;
|
---|
2473 | pThis->Dbgc.pUVM = NULL;
|
---|
2474 | pThis->Dbgc.idCpu = 0;
|
---|
2475 | pThis->Dbgc.hDbgAs = DBGF_AS_GLOBAL;
|
---|
2476 | pThis->Dbgc.pszEmulation = "CodeView/WinDbg";
|
---|
2477 | pThis->Dbgc.paEmulationCmds = &g_aCmdsCodeView[0];
|
---|
2478 | pThis->Dbgc.cEmulationCmds = g_cCmdsCodeView;
|
---|
2479 | pThis->Dbgc.paEmulationFuncs = &g_aFuncsCodeView[0];
|
---|
2480 | pThis->Dbgc.cEmulationFuncs = g_cFuncsCodeView;
|
---|
2481 | //pThis->Dbgc.fLog = false;
|
---|
2482 | pThis->Dbgc.fRegTerse = true;
|
---|
2483 | pThis->Dbgc.fStepTraceRegs = true;
|
---|
2484 | //pThis->Dbgc.cPagingHierarchyDumps = 0;
|
---|
2485 | //pThis->Dbgc.DisasmPos = {0};
|
---|
2486 | //pThis->Dbgc.SourcePos = {0};
|
---|
2487 | //pThis->Dbgc.DumpPos = {0};
|
---|
2488 | pThis->Dbgc.pLastPos = &pThis->Dbgc.DisasmPos;
|
---|
2489 | //pThis->Dbgc.cbDumpElement = 0;
|
---|
2490 | //pThis->Dbgc.cVars = 0;
|
---|
2491 | //pThis->Dbgc.paVars = NULL;
|
---|
2492 | //pThis->Dbgc.pPlugInHead = NULL;
|
---|
2493 | //pThis->Dbgc.pFirstBp = NULL;
|
---|
2494 | //pThis->Dbgc.abSearch = {0};
|
---|
2495 | //pThis->Dbgc.cbSearch = 0;
|
---|
2496 | pThis->Dbgc.cbSearchUnit = 1;
|
---|
2497 | pThis->Dbgc.cMaxSearchHits = 1;
|
---|
2498 | //pThis->Dbgc.SearchAddr = {0};
|
---|
2499 | //pThis->Dbgc.cbSearchRange = 0;
|
---|
2500 |
|
---|
2501 | //pThis->Dbgc.uInputZero = 0;
|
---|
2502 | //pThis->Dbgc.iRead = 0;
|
---|
2503 | //pThis->Dbgc.iWrite = 0;
|
---|
2504 | //pThis->Dbgc.cInputLines = 0;
|
---|
2505 | //pThis->Dbgc.fInputOverflow = false;
|
---|
2506 | pThis->Dbgc.fReady = true;
|
---|
2507 | pThis->Dbgc.pszScratch = &pThis->Dbgc.achScratch[0];
|
---|
2508 | //pThis->Dbgc.iArg = 0;
|
---|
2509 | //pThis->Dbgc.rcOutput = 0;
|
---|
2510 | //pThis->Dbgc.rcCmd = 0;
|
---|
2511 |
|
---|
2512 | //pThis->Dbgc.pszHistoryFile = NULL;
|
---|
2513 | //pThis->Dbgc.pszGlobalInitScript = NULL;
|
---|
2514 | //pThis->Dbgc.pszLocalInitScript = NULL;
|
---|
2515 |
|
---|
2516 | dbgcEvalInit();
|
---|
2517 |
|
---|
2518 | pThis->fBreakinRecv = false;
|
---|
2519 | pThis->idPktNext = KD_PACKET_HDR_ID_INITIAL;
|
---|
2520 | pThis->pIfWinNt = NULL;
|
---|
2521 | dbgcKdCtxPktRecvReset(pThis);
|
---|
2522 |
|
---|
2523 | *ppKdCtx = pThis;
|
---|
2524 | return VINF_SUCCESS;
|
---|
2525 | }
|
---|
2526 |
|
---|
2527 |
|
---|
2528 | /**
|
---|
2529 | * Destroys the given KD context.
|
---|
2530 | *
|
---|
2531 | * @returns nothing.
|
---|
2532 | * @param pThis The KD context to destroy.
|
---|
2533 | */
|
---|
2534 | static void dbgcKdCtxDestroy(PKDCTX pThis)
|
---|
2535 | {
|
---|
2536 | AssertPtr(pThis);
|
---|
2537 |
|
---|
2538 | pThis->pIfWinNt = NULL;
|
---|
2539 |
|
---|
2540 | /* Detach from the VM. */
|
---|
2541 | if (pThis->Dbgc.pUVM)
|
---|
2542 | DBGFR3Detach(pThis->Dbgc.pUVM);
|
---|
2543 |
|
---|
2544 | /* Free config strings. */
|
---|
2545 | RTStrFree(pThis->Dbgc.pszGlobalInitScript);
|
---|
2546 | pThis->Dbgc.pszGlobalInitScript = NULL;
|
---|
2547 | RTStrFree(pThis->Dbgc.pszLocalInitScript);
|
---|
2548 | pThis->Dbgc.pszLocalInitScript = NULL;
|
---|
2549 | RTStrFree(pThis->Dbgc.pszHistoryFile);
|
---|
2550 | pThis->Dbgc.pszHistoryFile = NULL;
|
---|
2551 |
|
---|
2552 | /* Finally, free the instance memory. */
|
---|
2553 | RTMemFree(pThis);
|
---|
2554 | }
|
---|
2555 |
|
---|
2556 |
|
---|
2557 | DECLHIDDEN(int) dbgcKdStubCreate(PUVM pUVM, PDBGCBACK pBack, unsigned fFlags)
|
---|
2558 | {
|
---|
2559 | /*
|
---|
2560 | * Validate input.
|
---|
2561 | */
|
---|
2562 | AssertPtrNullReturn(pUVM, VERR_INVALID_VM_HANDLE);
|
---|
2563 | PVM pVM = NULL;
|
---|
2564 | if (pUVM)
|
---|
2565 | {
|
---|
2566 | pVM = VMR3GetVM(pUVM);
|
---|
2567 | AssertPtrReturn(pVM, VERR_INVALID_VM_HANDLE);
|
---|
2568 | }
|
---|
2569 |
|
---|
2570 | /*
|
---|
2571 | * Allocate and initialize instance data
|
---|
2572 | */
|
---|
2573 | PKDCTX pThis;
|
---|
2574 | int rc = dbgcKdCtxCreate(&pThis, pBack, fFlags);
|
---|
2575 | if (RT_FAILURE(rc))
|
---|
2576 | return rc;
|
---|
2577 | if (!HMR3IsEnabled(pUVM) && !NEMR3IsEnabled(pUVM))
|
---|
2578 | pThis->Dbgc.hDbgAs = DBGF_AS_RC_AND_GC_GLOBAL;
|
---|
2579 |
|
---|
2580 | /*
|
---|
2581 | * Attach to the specified VM.
|
---|
2582 | */
|
---|
2583 | if (RT_SUCCESS(rc) && pUVM)
|
---|
2584 | {
|
---|
2585 | rc = DBGFR3Attach(pUVM);
|
---|
2586 | if (RT_SUCCESS(rc))
|
---|
2587 | {
|
---|
2588 | pThis->Dbgc.pVM = pVM;
|
---|
2589 | pThis->Dbgc.pUVM = pUVM;
|
---|
2590 | pThis->Dbgc.idCpu = 0;
|
---|
2591 |
|
---|
2592 | /* Try detecting a Windows NT guest. */
|
---|
2593 | char szName[64];
|
---|
2594 | rc = DBGFR3OSDetect(pUVM, szName, sizeof(szName));
|
---|
2595 | if (RT_SUCCESS(rc))
|
---|
2596 | {
|
---|
2597 | pThis->pIfWinNt = (PDBGFOSIWINNT)DBGFR3OSQueryInterface(pUVM, DBGFOSINTERFACE_WINNT);
|
---|
2598 | if (pThis->pIfWinNt)
|
---|
2599 | LogRel(("DBGC/Kd: Detected Windows NT guest OS (%s)\n", &szName[0]));
|
---|
2600 | else
|
---|
2601 | LogRel(("DBGC/Kd: Detected guest OS is not of the Windows NT kind (%s)\n", &szName[0]));
|
---|
2602 | }
|
---|
2603 | else
|
---|
2604 | {
|
---|
2605 | LogRel(("DBGC/Kd: Unable to detect any guest operating system type, rc=%Rrc\n", rc));
|
---|
2606 | rc = VINF_SUCCESS; /* Try to continue nevertheless. */
|
---|
2607 | }
|
---|
2608 | }
|
---|
2609 | else
|
---|
2610 | rc = pThis->Dbgc.CmdHlp.pfnVBoxError(&pThis->Dbgc.CmdHlp, rc, "When trying to attach to VM %p\n", pThis->Dbgc.pVM);
|
---|
2611 | }
|
---|
2612 |
|
---|
2613 | /*
|
---|
2614 | * Load plugins.
|
---|
2615 | */
|
---|
2616 | if (RT_SUCCESS(rc))
|
---|
2617 | {
|
---|
2618 | if (pVM)
|
---|
2619 | DBGFR3PlugInLoadAll(pThis->Dbgc.pUVM);
|
---|
2620 | dbgcEventInit(&pThis->Dbgc);
|
---|
2621 |
|
---|
2622 | /*
|
---|
2623 | * Run the debugger main loop.
|
---|
2624 | */
|
---|
2625 | rc = dbgcKdRun(pThis);
|
---|
2626 | dbgcEventTerm(&pThis->Dbgc);
|
---|
2627 | }
|
---|
2628 |
|
---|
2629 | /*
|
---|
2630 | * Cleanup console debugger session.
|
---|
2631 | */
|
---|
2632 | dbgcKdCtxDestroy(pThis);
|
---|
2633 | return rc == VERR_DBGC_QUIT ? VINF_SUCCESS : rc;
|
---|
2634 | }
|
---|
2635 |
|
---|