1 | /* $Id: DBGFBp.cpp 81153 2019-10-08 13:59:03Z vboxsync $ */
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2 | /** @file
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3 | * DBGF - Debugger Facility, Breakpoint Management.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2019 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 | #define LOG_GROUP LOG_GROUP_DBGF
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23 | #include <VBox/vmm/dbgf.h>
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24 | #include <VBox/vmm/selm.h>
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25 | #include <VBox/vmm/iem.h>
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26 | #include <VBox/vmm/mm.h>
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27 | #include <VBox/vmm/iom.h>
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28 | #include <VBox/vmm/hm.h>
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29 | #include "DBGFInternal.h"
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30 | #include <VBox/vmm/vm.h>
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31 | #include <VBox/vmm/uvm.h>
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32 |
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33 | #include <VBox/err.h>
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34 | #include <VBox/log.h>
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35 | #include <iprt/assert.h>
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36 | #include <iprt/string.h>
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37 |
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38 |
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39 | /*********************************************************************************************************************************
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40 | * Structures and Typedefs *
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41 | *********************************************************************************************************************************/
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42 | /**
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43 | * DBGF INT3-breakpoint set callback arguments.
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44 | */
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45 | typedef struct DBGFBPINT3ARGS
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46 | {
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47 | /** The source virtual CPU ID (used for breakpoint address resolution). */
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48 | VMCPUID idSrcCpu;
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49 | /** The breakpoint address. */
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50 | PCDBGFADDRESS pAddress;
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51 | /** The hit count at which the breakpoint starts triggering. */
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52 | uint64_t iHitTrigger;
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53 | /** The hit count at which disables the breakpoint. */
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54 | uint64_t iHitDisable;
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55 | /** Where to store the breakpoint Id (optional). */
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56 | uint32_t *piBp;
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57 | } DBGFBPINT3ARGS;
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58 | /** Pointer to a DBGF INT3 breakpoint set callback argument. */
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59 | typedef DBGFBPINT3ARGS *PDBGFBPINT3ARGS;
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60 |
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61 |
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62 | /*********************************************************************************************************************************
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63 | * Internal Functions *
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64 | *********************************************************************************************************************************/
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65 | RT_C_DECLS_BEGIN
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66 | static int dbgfR3BpRegArm(PVM pVM, PDBGFBP pBp);
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67 | static int dbgfR3BpInt3Arm(PVM pVM, PDBGFBP pBp);
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68 | RT_C_DECLS_END
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69 |
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70 |
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71 |
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72 | /**
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73 | * Initialize the breakpoint stuff.
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74 | *
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75 | * @returns VINF_SUCCESS
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76 | * @param pVM The cross context VM structure.
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77 | */
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78 | int dbgfR3BpInit(PVM pVM)
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79 | {
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80 | /*
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81 | * Init structures.
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82 | */
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83 | unsigned i;
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84 | for (i = 0; i < RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints); i++)
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85 | {
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86 | pVM->dbgf.s.aHwBreakpoints[i].iBp = i;
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87 | pVM->dbgf.s.aHwBreakpoints[i].enmType = DBGFBPTYPE_FREE;
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88 | pVM->dbgf.s.aHwBreakpoints[i].u.Reg.iReg = i;
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89 | }
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90 |
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91 | for (i = 0; i < RT_ELEMENTS(pVM->dbgf.s.aBreakpoints); i++)
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92 | {
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93 | pVM->dbgf.s.aBreakpoints[i].iBp = i + RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints);
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94 | pVM->dbgf.s.aBreakpoints[i].enmType = DBGFBPTYPE_FREE;
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95 | }
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96 |
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97 | for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
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98 | {
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99 | PVMCPU pVCpu = pVM->apCpusR3[idCpu];
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100 | pVCpu->dbgf.s.iActiveBp = ~0U;
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101 | }
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102 |
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103 | /*
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104 | * Register saved state.
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105 | */
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106 | /** @todo */
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107 |
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108 | return VINF_SUCCESS;
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109 | }
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110 |
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111 |
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112 |
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113 | /**
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114 | * Allocate a breakpoint.
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115 | *
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116 | * @returns Pointer to the allocated breakpoint.
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117 | * @returns NULL if we're out of breakpoints.
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118 | * @param pVM The cross context VM structure.
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119 | * @param enmType The type to allocate.
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120 | */
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121 | static PDBGFBP dbgfR3BpAlloc(PVM pVM, DBGFBPTYPE enmType)
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122 | {
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123 | /*
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124 | * Determine which array to search and where in the array to start
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125 | * searching (latter for grouping similar BPs, reducing runtime overhead).
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126 | */
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127 | unsigned iStart;
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128 | unsigned cBps;
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129 | PDBGFBP paBps;
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130 | switch (enmType)
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131 | {
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132 | case DBGFBPTYPE_REG:
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133 | cBps = RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints);
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134 | paBps = &pVM->dbgf.s.aHwBreakpoints[0];
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135 | iStart = 0;
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136 | break;
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137 |
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138 | case DBGFBPTYPE_INT3:
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139 | case DBGFBPTYPE_REM:
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140 | case DBGFBPTYPE_PORT_IO:
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141 | case DBGFBPTYPE_MMIO:
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142 | cBps = RT_ELEMENTS(pVM->dbgf.s.aBreakpoints);
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143 | paBps = &pVM->dbgf.s.aBreakpoints[0];
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144 | if (enmType == DBGFBPTYPE_PORT_IO)
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145 | iStart = cBps / 4 * 2;
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146 | else if (enmType == DBGFBPTYPE_MMIO)
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147 | iStart = cBps / 4 * 1;
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148 | else if (enmType == DBGFBPTYPE_REM)
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149 | iStart = cBps / 4 * 3;
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150 | else
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151 | iStart = 0;
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152 | break;
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153 |
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154 | default:
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155 | AssertMsgFailed(("enmType=%d\n", enmType));
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156 | return NULL;
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157 | }
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158 |
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159 | /*
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160 | * Search for a free breakpoint entry.
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161 | */
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162 | unsigned iBp;
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163 | for (iBp = iStart; iBp < cBps; iBp++)
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164 | if (paBps[iBp].enmType == DBGFBPTYPE_FREE)
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165 | break;
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166 | if (iBp >= cBps && iStart != 0)
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167 | for (iBp = 0; iBp < cBps; iBp++)
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168 | if (paBps[iBp].enmType == DBGFBPTYPE_FREE)
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169 | break;
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170 | if (iBp < cBps)
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171 | {
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172 | /*
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173 | * Return what we found.
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174 | */
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175 | paBps[iBp].fEnabled = false;
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176 | paBps[iBp].cHits = 0;
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177 | paBps[iBp].enmType = enmType;
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178 | return &paBps[iBp];
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179 | }
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180 |
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181 | LogFlow(("dbgfR3BpAlloc: returns NULL - we're out of breakpoint slots! cBps=%u\n", cBps));
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182 | return NULL;
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183 | }
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184 |
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185 |
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186 | /**
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187 | * Updates the search optimization structure for enabled breakpoints of the
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188 | * specified type.
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189 | *
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190 | * @returns VINF_SUCCESS.
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191 | * @param pVM The cross context VM structure.
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192 | * @param enmType The breakpoint type.
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193 | * @param pOpt The breakpoint optimization structure to update.
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194 | */
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195 | static int dbgfR3BpUpdateSearchOptimizations(PVM pVM, DBGFBPTYPE enmType, PDBGFBPSEARCHOPT pOpt)
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196 | {
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197 | DBGFBPSEARCHOPT Opt = { UINT32_MAX, 0 };
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198 |
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199 | for (uint32_t iBp = 0; iBp < RT_ELEMENTS(pVM->dbgf.s.aBreakpoints); iBp++)
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200 | if ( pVM->dbgf.s.aBreakpoints[iBp].enmType == enmType
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201 | && pVM->dbgf.s.aBreakpoints[iBp].fEnabled)
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202 | {
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203 | if (Opt.iStartSearch > iBp)
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204 | Opt.iStartSearch = iBp;
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205 | Opt.cToSearch = iBp - Opt.iStartSearch + 1;
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206 | }
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207 |
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208 | *pOpt = Opt;
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209 | return VINF_SUCCESS;
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210 | }
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211 |
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212 |
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213 | /**
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214 | * Get a breakpoint give by breakpoint id.
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215 | *
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216 | * @returns Pointer to the allocated breakpoint.
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217 | * @returns NULL if the breakpoint is invalid.
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218 | * @param pVM The cross context VM structure.
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219 | * @param iBp The breakpoint id.
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220 | */
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221 | static PDBGFBP dbgfR3BpGet(PVM pVM, uint32_t iBp)
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222 | {
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223 | /* Find it. */
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224 | PDBGFBP pBp;
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225 | if (iBp < RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints))
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226 | pBp = &pVM->dbgf.s.aHwBreakpoints[iBp];
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227 | else
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228 | {
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229 | iBp -= RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints);
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230 | if (iBp >= RT_ELEMENTS(pVM->dbgf.s.aBreakpoints))
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231 | return NULL;
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232 | pBp = &pVM->dbgf.s.aBreakpoints[iBp];
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233 | }
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234 |
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235 | /* check if it's valid. */
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236 | switch (pBp->enmType)
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237 | {
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238 | case DBGFBPTYPE_FREE:
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239 | return NULL;
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240 |
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241 | case DBGFBPTYPE_REG:
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242 | case DBGFBPTYPE_INT3:
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243 | case DBGFBPTYPE_REM:
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244 | case DBGFBPTYPE_PORT_IO:
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245 | case DBGFBPTYPE_MMIO:
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246 | break;
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247 |
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248 | default:
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249 | AssertMsgFailed(("Invalid enmType=%d!\n", pBp->enmType));
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250 | return NULL;
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251 | }
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252 |
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253 | return pBp;
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254 | }
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255 |
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256 |
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257 | /**
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258 | * Get a breakpoint give by address.
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259 | *
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260 | * @returns Pointer to the allocated breakpoint.
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261 | * @returns NULL if the breakpoint is invalid.
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262 | * @param pVM The cross context VM structure.
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263 | * @param enmType The breakpoint type.
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264 | * @param GCPtr The breakpoint address.
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265 | */
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266 | static PDBGFBP dbgfR3BpGetByAddr(PVM pVM, DBGFBPTYPE enmType, RTGCUINTPTR GCPtr)
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267 | {
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268 | /*
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269 | * Determine which array to search.
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270 | */
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271 | unsigned cBps;
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272 | PDBGFBP paBps;
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273 | switch (enmType)
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274 | {
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275 | case DBGFBPTYPE_REG:
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276 | cBps = RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints);
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277 | paBps = &pVM->dbgf.s.aHwBreakpoints[0];
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278 | break;
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279 |
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280 | case DBGFBPTYPE_INT3:
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281 | case DBGFBPTYPE_REM:
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282 | cBps = RT_ELEMENTS(pVM->dbgf.s.aBreakpoints);
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283 | paBps = &pVM->dbgf.s.aBreakpoints[0];
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284 | break;
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285 |
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286 | default:
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287 | AssertMsgFailed(("enmType=%d\n", enmType));
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288 | return NULL;
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289 | }
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290 |
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291 | /*
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292 | * Search.
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293 | */
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294 | for (unsigned iBp = 0; iBp < cBps; iBp++)
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295 | if ( paBps[iBp].enmType == enmType
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296 | && paBps[iBp].u.GCPtr == GCPtr)
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297 | return &paBps[iBp];
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298 |
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299 | return NULL;
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300 | }
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301 |
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302 |
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303 | /**
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304 | * Frees a breakpoint.
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305 | *
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306 | * @param pVM The cross context VM structure.
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307 | * @param pBp The breakpoint to free.
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308 | */
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309 | static void dbgfR3BpFree(PVM pVM, PDBGFBP pBp)
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310 | {
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311 | switch (pBp->enmType)
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312 | {
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313 | case DBGFBPTYPE_FREE:
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314 | AssertMsgFailed(("Already freed!\n"));
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315 | return;
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316 |
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317 | case DBGFBPTYPE_REG:
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318 | Assert((uintptr_t)(pBp - &pVM->dbgf.s.aHwBreakpoints[0]) < RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints));
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319 | break;
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320 |
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321 | case DBGFBPTYPE_INT3:
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322 | case DBGFBPTYPE_REM:
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323 | case DBGFBPTYPE_PORT_IO:
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324 | case DBGFBPTYPE_MMIO:
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325 | Assert((uintptr_t)(pBp - &pVM->dbgf.s.aBreakpoints[0]) < RT_ELEMENTS(pVM->dbgf.s.aBreakpoints));
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326 | break;
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327 |
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328 | default:
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329 | AssertMsgFailed(("Invalid enmType=%d!\n", pBp->enmType));
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330 | return;
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331 |
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332 | }
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333 | pBp->enmType = DBGFBPTYPE_FREE;
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334 | NOREF(pVM);
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335 | }
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336 |
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337 |
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338 | /**
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339 | * @callback_method_impl{FNVMMEMTRENDEZVOUS}
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340 | */
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341 | static DECLCALLBACK(VBOXSTRICTRC) dbgfR3BpEnableInt3OnCpu(PVM pVM, PVMCPU pVCpu, void *pvUser)
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342 | {
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343 | /*
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344 | * Validate input.
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345 | */
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346 | PDBGFBP pBp = (PDBGFBP)pvUser;
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347 | AssertReturn(pBp, VERR_INVALID_PARAMETER);
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348 | Assert(pBp->enmType == DBGFBPTYPE_INT3);
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349 | VMCPU_ASSERT_EMT(pVCpu); RT_NOREF(pVCpu);
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350 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
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351 |
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352 | /*
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353 | * Arm the breakpoint.
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354 | */
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355 | return dbgfR3BpInt3Arm(pVM, pBp);
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356 | }
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357 |
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358 |
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359 | /**
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360 | * @callback_method_impl{FNVMMEMTRENDEZVOUS}
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361 | */
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362 | static DECLCALLBACK(VBOXSTRICTRC) dbgfR3BpSetInt3OnCpu(PVM pVM, PVMCPU pVCpu, void *pvUser)
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363 | {
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364 | /*
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365 | * Validate input.
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366 | */
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367 | PDBGFBPINT3ARGS pBpArgs = (PDBGFBPINT3ARGS)pvUser;
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368 | AssertReturn(pBpArgs, VERR_INVALID_PARAMETER);
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369 | VMCPU_ASSERT_EMT(pVCpu);
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370 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
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371 |
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372 | AssertMsgReturn(!pBpArgs->piBp || VALID_PTR(pBpArgs->piBp), ("piBp=%p\n", pBpArgs->piBp), VERR_INVALID_POINTER);
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373 | PCDBGFADDRESS pAddress = pBpArgs->pAddress;
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374 | if (!DBGFR3AddrIsValid(pVM->pUVM, pAddress))
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375 | return VERR_INVALID_PARAMETER;
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376 |
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377 | if (pBpArgs->iHitTrigger > pBpArgs->iHitDisable)
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378 | return VERR_INVALID_PARAMETER;
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379 |
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380 | /*
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381 | * Check if we're on the source CPU where we can resolve the breakpoint address.
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382 | */
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383 | if (pVCpu->idCpu == pBpArgs->idSrcCpu)
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384 | {
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385 | if (pBpArgs->piBp)
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386 | *pBpArgs->piBp = UINT32_MAX;
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387 |
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388 | /*
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389 | * Check if the breakpoint already exists.
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390 | */
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391 | PDBGFBP pBp = dbgfR3BpGetByAddr(pVM, DBGFBPTYPE_INT3, pAddress->FlatPtr);
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392 | if (pBp)
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393 | {
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394 | int rc = VINF_SUCCESS;
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395 | if (!pBp->fEnabled)
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396 | rc = dbgfR3BpInt3Arm(pVM, pBp);
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397 | if (RT_SUCCESS(rc))
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398 | {
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399 | if (pBpArgs->piBp)
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400 | *pBpArgs->piBp = pBp->iBp;
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401 |
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402 | /*
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403 | * Returning VINF_DBGF_BP_ALREADY_EXIST here causes a VBOXSTRICTRC out-of-range assertion
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404 | * in VMMR3EmtRendezvous(). Re-setting of an existing breakpoint shouldn't cause an assertion
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405 | * killing the VM (and debugging session), so for now we'll pretend success.
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406 | */
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407 | #if 0
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408 | rc = VINF_DBGF_BP_ALREADY_EXIST;
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409 | #endif
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410 | }
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411 | else
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412 | dbgfR3BpFree(pVM, pBp);
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413 | return rc;
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414 | }
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415 |
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416 | /*
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417 | * Allocate the breakpoint.
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418 | */
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419 | pBp = dbgfR3BpAlloc(pVM, DBGFBPTYPE_INT3);
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420 | if (!pBp)
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421 | return VERR_DBGF_NO_MORE_BP_SLOTS;
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422 |
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423 | /*
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424 | * Translate & save the breakpoint address into a guest-physical address.
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425 | */
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426 | int rc = DBGFR3AddrToPhys(pVM->pUVM, pBpArgs->idSrcCpu, pAddress, &pBp->u.Int3.PhysAddr);
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427 | if (RT_SUCCESS(rc))
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428 | {
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429 | /* The physical address from DBGFR3AddrToPhys() is the start of the page,
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430 | we need the exact byte offset into the page while writing to it in dbgfR3BpInt3Arm(). */
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431 | pBp->u.Int3.PhysAddr |= (pAddress->FlatPtr & X86_PAGE_OFFSET_MASK);
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432 | pBp->u.Int3.GCPtr = pAddress->FlatPtr;
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433 | pBp->iHitTrigger = pBpArgs->iHitTrigger;
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434 | pBp->iHitDisable = pBpArgs->iHitDisable;
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435 |
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436 | /*
|
---|
437 | * Now set the breakpoint in guest memory.
|
---|
438 | */
|
---|
439 | rc = dbgfR3BpInt3Arm(pVM, pBp);
|
---|
440 | if (RT_SUCCESS(rc))
|
---|
441 | {
|
---|
442 | if (pBpArgs->piBp)
|
---|
443 | *pBpArgs->piBp = pBp->iBp;
|
---|
444 | return VINF_SUCCESS;
|
---|
445 | }
|
---|
446 | }
|
---|
447 |
|
---|
448 | dbgfR3BpFree(pVM, pBp);
|
---|
449 | return rc;
|
---|
450 | }
|
---|
451 |
|
---|
452 | return VINF_SUCCESS;
|
---|
453 | }
|
---|
454 |
|
---|
455 |
|
---|
456 | /**
|
---|
457 | * Sets a breakpoint (int 3 based).
|
---|
458 | *
|
---|
459 | * @returns VBox status code.
|
---|
460 | * @param pUVM The user mode VM handle.
|
---|
461 | * @param idSrcCpu The ID of the virtual CPU used for the
|
---|
462 | * breakpoint address resolution.
|
---|
463 | * @param pAddress The address of the breakpoint.
|
---|
464 | * @param iHitTrigger The hit count at which the breakpoint start triggering.
|
---|
465 | * Use 0 (or 1) if it's gonna trigger at once.
|
---|
466 | * @param iHitDisable The hit count which disables the breakpoint.
|
---|
467 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
468 | * @param piBp Where to store the breakpoint id. (optional)
|
---|
469 | * @thread Any thread.
|
---|
470 | */
|
---|
471 | VMMR3DECL(int) DBGFR3BpSetInt3(PUVM pUVM, VMCPUID idSrcCpu, PCDBGFADDRESS pAddress, uint64_t iHitTrigger, uint64_t iHitDisable,
|
---|
472 | uint32_t *piBp)
|
---|
473 | {
|
---|
474 | AssertReturn(idSrcCpu <= pUVM->cCpus, VERR_INVALID_CPU_ID);
|
---|
475 |
|
---|
476 | DBGFBPINT3ARGS BpArgs;
|
---|
477 | RT_ZERO(BpArgs);
|
---|
478 | BpArgs.idSrcCpu = idSrcCpu;
|
---|
479 | BpArgs.iHitTrigger = iHitTrigger;
|
---|
480 | BpArgs.iHitDisable = iHitDisable;
|
---|
481 | BpArgs.pAddress = pAddress;
|
---|
482 | BpArgs.piBp = piBp;
|
---|
483 |
|
---|
484 | int rc = VMMR3EmtRendezvous(pUVM->pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE, dbgfR3BpSetInt3OnCpu, &BpArgs);
|
---|
485 | LogFlow(("DBGFR3BpSet: returns %Rrc\n", rc));
|
---|
486 | return rc;
|
---|
487 | }
|
---|
488 |
|
---|
489 |
|
---|
490 | /**
|
---|
491 | * Arms an int 3 breakpoint.
|
---|
492 | *
|
---|
493 | * This is used to implement both DBGFR3BpSetInt3() and
|
---|
494 | * DBGFR3BpEnable().
|
---|
495 | *
|
---|
496 | * @returns VBox status code.
|
---|
497 | * @param pVM The cross context VM structure.
|
---|
498 | * @param pBp The breakpoint.
|
---|
499 | */
|
---|
500 | static int dbgfR3BpInt3Arm(PVM pVM, PDBGFBP pBp)
|
---|
501 | {
|
---|
502 | VM_ASSERT_EMT(pVM);
|
---|
503 |
|
---|
504 | /*
|
---|
505 | * Save current byte and write the int3 instruction byte.
|
---|
506 | */
|
---|
507 | int rc = PGMPhysSimpleReadGCPhys(pVM, &pBp->u.Int3.bOrg, pBp->u.Int3.PhysAddr, sizeof(pBp->u.Int3.bOrg));
|
---|
508 | if (RT_SUCCESS(rc))
|
---|
509 | {
|
---|
510 | static const uint8_t s_bInt3 = 0xcc;
|
---|
511 | rc = PGMPhysSimpleWriteGCPhys(pVM, pBp->u.Int3.PhysAddr, &s_bInt3, sizeof(s_bInt3));
|
---|
512 | if (RT_SUCCESS(rc))
|
---|
513 | {
|
---|
514 | pBp->fEnabled = true;
|
---|
515 | dbgfR3BpUpdateSearchOptimizations(pVM, DBGFBPTYPE_INT3, &pVM->dbgf.s.Int3);
|
---|
516 | pVM->dbgf.s.cEnabledInt3Breakpoints = pVM->dbgf.s.Int3.cToSearch;
|
---|
517 | Log(("DBGF: Set breakpoint at %RGv (Phys %RGp) cEnabledInt3Breakpoints=%u\n", pBp->u.Int3.GCPtr,
|
---|
518 | pBp->u.Int3.PhysAddr, pVM->dbgf.s.cEnabledInt3Breakpoints));
|
---|
519 | }
|
---|
520 | }
|
---|
521 | return rc;
|
---|
522 | }
|
---|
523 |
|
---|
524 |
|
---|
525 | /**
|
---|
526 | * Disarms an int 3 breakpoint.
|
---|
527 | *
|
---|
528 | * This is used to implement both DBGFR3BpClear() and DBGFR3BpDisable().
|
---|
529 | *
|
---|
530 | * @returns VBox status code.
|
---|
531 | * @param pVM The cross context VM structure.
|
---|
532 | * @param pBp The breakpoint.
|
---|
533 | */
|
---|
534 | static int dbgfR3BpInt3Disarm(PVM pVM, PDBGFBP pBp)
|
---|
535 | {
|
---|
536 | VM_ASSERT_EMT(pVM);
|
---|
537 |
|
---|
538 | /*
|
---|
539 | * Check that the current byte is the int3 instruction, and restore the original one.
|
---|
540 | * We currently ignore invalid bytes.
|
---|
541 | */
|
---|
542 | uint8_t bCurrent = 0;
|
---|
543 | int rc = PGMPhysSimpleReadGCPhys(pVM, &bCurrent, pBp->u.Int3.PhysAddr, sizeof(bCurrent));
|
---|
544 | if ( RT_SUCCESS(rc)
|
---|
545 | && bCurrent == 0xcc)
|
---|
546 | {
|
---|
547 | rc = PGMPhysSimpleWriteGCPhys(pVM, pBp->u.Int3.PhysAddr, &pBp->u.Int3.bOrg, sizeof(pBp->u.Int3.bOrg));
|
---|
548 | if (RT_SUCCESS(rc))
|
---|
549 | {
|
---|
550 | pBp->fEnabled = false;
|
---|
551 | dbgfR3BpUpdateSearchOptimizations(pVM, DBGFBPTYPE_INT3, &pVM->dbgf.s.Int3);
|
---|
552 | pVM->dbgf.s.cEnabledInt3Breakpoints = pVM->dbgf.s.Int3.cToSearch;
|
---|
553 | Log(("DBGF: Removed breakpoint at %RGv (Phys %RGp) cEnabledInt3Breakpoints=%u\n", pBp->u.Int3.GCPtr,
|
---|
554 | pBp->u.Int3.PhysAddr, pVM->dbgf.s.cEnabledInt3Breakpoints));
|
---|
555 | }
|
---|
556 | }
|
---|
557 | return rc;
|
---|
558 | }
|
---|
559 |
|
---|
560 |
|
---|
561 | /**
|
---|
562 | * @callback_method_impl{FNVMMEMTRENDEZVOUS}
|
---|
563 | */
|
---|
564 | static DECLCALLBACK(VBOXSTRICTRC) dbgfR3BpDisableInt3OnCpu(PVM pVM, PVMCPU pVCpu, void *pvUser)
|
---|
565 | {
|
---|
566 | /*
|
---|
567 | * Validate input.
|
---|
568 | */
|
---|
569 | PDBGFBP pBp = (PDBGFBP)pvUser;
|
---|
570 | AssertReturn(pBp, VERR_INVALID_PARAMETER);
|
---|
571 | Assert(pBp->enmType == DBGFBPTYPE_INT3);
|
---|
572 | VMCPU_ASSERT_EMT(pVCpu); RT_NOREF(pVCpu);
|
---|
573 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
574 |
|
---|
575 | /*
|
---|
576 | * Disarm the breakpoint.
|
---|
577 | */
|
---|
578 | return dbgfR3BpInt3Disarm(pVM, pBp);
|
---|
579 | }
|
---|
580 |
|
---|
581 |
|
---|
582 | /**
|
---|
583 | * Sets a register breakpoint.
|
---|
584 | *
|
---|
585 | * @returns VBox status code.
|
---|
586 | * @param pUVM The user mode VM handle.
|
---|
587 | * @param pAddress The address of the breakpoint.
|
---|
588 | * @param piHitTrigger The hit count at which the breakpoint start triggering.
|
---|
589 | * Use 0 (or 1) if it's gonna trigger at once.
|
---|
590 | * @param piHitDisable The hit count which disables the breakpoint.
|
---|
591 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
592 | * @param fType The access type (one of the X86_DR7_RW_* defines).
|
---|
593 | * @param cb The access size - 1,2,4 or 8 (the latter is AMD64 long mode only.
|
---|
594 | * Must be 1 if fType is X86_DR7_RW_EO.
|
---|
595 | * @param piBp Where to store the breakpoint id. (optional)
|
---|
596 | * @thread EMT
|
---|
597 | * @internal
|
---|
598 | */
|
---|
599 | static DECLCALLBACK(int) dbgfR3BpSetReg(PUVM pUVM, PCDBGFADDRESS pAddress, uint64_t *piHitTrigger, uint64_t *piHitDisable,
|
---|
600 | uint8_t fType, uint8_t cb, uint32_t *piBp)
|
---|
601 | {
|
---|
602 | /*
|
---|
603 | * Validate input.
|
---|
604 | */
|
---|
605 | PVM pVM = pUVM->pVM;
|
---|
606 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
607 | if (!DBGFR3AddrIsValid(pUVM, pAddress))
|
---|
608 | return VERR_INVALID_PARAMETER;
|
---|
609 | if (*piHitTrigger > *piHitDisable)
|
---|
610 | return VERR_INVALID_PARAMETER;
|
---|
611 | AssertMsgReturn(!piBp || VALID_PTR(piBp), ("piBp=%p\n", piBp), VERR_INVALID_POINTER);
|
---|
612 | if (piBp)
|
---|
613 | *piBp = UINT32_MAX;
|
---|
614 | switch (fType)
|
---|
615 | {
|
---|
616 | case X86_DR7_RW_EO:
|
---|
617 | if (cb == 1)
|
---|
618 | break;
|
---|
619 | AssertMsgFailed(("fType=%#x cb=%d != 1\n", fType, cb));
|
---|
620 | return VERR_INVALID_PARAMETER;
|
---|
621 | case X86_DR7_RW_IO:
|
---|
622 | case X86_DR7_RW_RW:
|
---|
623 | case X86_DR7_RW_WO:
|
---|
624 | break;
|
---|
625 | default:
|
---|
626 | AssertMsgFailed(("fType=%#x\n", fType));
|
---|
627 | return VERR_INVALID_PARAMETER;
|
---|
628 | }
|
---|
629 | switch (cb)
|
---|
630 | {
|
---|
631 | case 1:
|
---|
632 | case 2:
|
---|
633 | case 4:
|
---|
634 | break;
|
---|
635 | default:
|
---|
636 | AssertMsgFailed(("cb=%#x\n", cb));
|
---|
637 | return VERR_INVALID_PARAMETER;
|
---|
638 | }
|
---|
639 |
|
---|
640 | /*
|
---|
641 | * Check if the breakpoint already exists.
|
---|
642 | */
|
---|
643 | PDBGFBP pBp = dbgfR3BpGetByAddr(pVM, DBGFBPTYPE_REG, pAddress->FlatPtr);
|
---|
644 | if ( pBp
|
---|
645 | && pBp->u.Reg.cb == cb
|
---|
646 | && pBp->u.Reg.fType == fType)
|
---|
647 | {
|
---|
648 | int rc = VINF_SUCCESS;
|
---|
649 | if (!pBp->fEnabled)
|
---|
650 | rc = dbgfR3BpRegArm(pVM, pBp);
|
---|
651 | if (RT_SUCCESS(rc))
|
---|
652 | {
|
---|
653 | rc = VINF_DBGF_BP_ALREADY_EXIST;
|
---|
654 | if (piBp)
|
---|
655 | *piBp = pBp->iBp;
|
---|
656 | }
|
---|
657 | return rc;
|
---|
658 | }
|
---|
659 |
|
---|
660 | /*
|
---|
661 | * Allocate and initialize the bp.
|
---|
662 | */
|
---|
663 | pBp = dbgfR3BpAlloc(pVM, DBGFBPTYPE_REG);
|
---|
664 | if (!pBp)
|
---|
665 | return VERR_DBGF_NO_MORE_BP_SLOTS;
|
---|
666 | pBp->iHitTrigger = *piHitTrigger;
|
---|
667 | pBp->iHitDisable = *piHitDisable;
|
---|
668 | Assert(pBp->iBp == pBp->u.Reg.iReg);
|
---|
669 | pBp->u.Reg.GCPtr = pAddress->FlatPtr;
|
---|
670 | pBp->u.Reg.fType = fType;
|
---|
671 | pBp->u.Reg.cb = cb;
|
---|
672 | ASMCompilerBarrier();
|
---|
673 | pBp->fEnabled = true;
|
---|
674 |
|
---|
675 | /*
|
---|
676 | * Arm the breakpoint.
|
---|
677 | */
|
---|
678 | int rc = dbgfR3BpRegArm(pVM, pBp);
|
---|
679 | if (RT_SUCCESS(rc))
|
---|
680 | {
|
---|
681 | if (piBp)
|
---|
682 | *piBp = pBp->iBp;
|
---|
683 | }
|
---|
684 | else
|
---|
685 | dbgfR3BpFree(pVM, pBp);
|
---|
686 |
|
---|
687 | return rc;
|
---|
688 | }
|
---|
689 |
|
---|
690 |
|
---|
691 | /**
|
---|
692 | * Sets a register breakpoint.
|
---|
693 | *
|
---|
694 | * @returns VBox status code.
|
---|
695 | * @param pUVM The user mode VM handle.
|
---|
696 | * @param pAddress The address of the breakpoint.
|
---|
697 | * @param iHitTrigger The hit count at which the breakpoint start triggering.
|
---|
698 | * Use 0 (or 1) if it's gonna trigger at once.
|
---|
699 | * @param iHitDisable The hit count which disables the breakpoint.
|
---|
700 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
701 | * @param fType The access type (one of the X86_DR7_RW_* defines).
|
---|
702 | * @param cb The access size - 1,2,4 or 8 (the latter is AMD64 long mode only.
|
---|
703 | * Must be 1 if fType is X86_DR7_RW_EO.
|
---|
704 | * @param piBp Where to store the breakpoint id. (optional)
|
---|
705 | * @thread Any thread.
|
---|
706 | */
|
---|
707 | VMMR3DECL(int) DBGFR3BpSetReg(PUVM pUVM, PCDBGFADDRESS pAddress, uint64_t iHitTrigger, uint64_t iHitDisable,
|
---|
708 | uint8_t fType, uint8_t cb, uint32_t *piBp)
|
---|
709 | {
|
---|
710 | /*
|
---|
711 | * This must be done on EMT.
|
---|
712 | */
|
---|
713 | int rc = VMR3ReqCallWaitU(pUVM, 0 /*idDstCpu*/, (PFNRT)dbgfR3BpSetReg, 7,
|
---|
714 | pUVM, pAddress, &iHitTrigger, &iHitDisable, fType, cb, piBp);
|
---|
715 | LogFlow(("DBGFR3BpSetReg: returns %Rrc\n", rc));
|
---|
716 | return rc;
|
---|
717 |
|
---|
718 | }
|
---|
719 |
|
---|
720 |
|
---|
721 | /**
|
---|
722 | * @callback_method_impl{FNVMMEMTRENDEZVOUS}
|
---|
723 | */
|
---|
724 | static DECLCALLBACK(VBOXSTRICTRC) dbgfR3BpRegRecalcOnCpu(PVM pVM, PVMCPU pVCpu, void *pvUser)
|
---|
725 | {
|
---|
726 | NOREF(pVM); NOREF(pvUser);
|
---|
727 |
|
---|
728 | /*
|
---|
729 | * CPU 0 updates the enabled hardware breakpoint counts.
|
---|
730 | */
|
---|
731 | if (pVCpu->idCpu == 0)
|
---|
732 | {
|
---|
733 | pVM->dbgf.s.cEnabledHwBreakpoints = 0;
|
---|
734 | pVM->dbgf.s.cEnabledHwIoBreakpoints = 0;
|
---|
735 |
|
---|
736 | for (uint32_t iBp = 0; iBp < RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints); iBp++)
|
---|
737 | if ( pVM->dbgf.s.aHwBreakpoints[iBp].fEnabled
|
---|
738 | && pVM->dbgf.s.aHwBreakpoints[iBp].enmType == DBGFBPTYPE_REG)
|
---|
739 | {
|
---|
740 | pVM->dbgf.s.cEnabledHwBreakpoints += 1;
|
---|
741 | pVM->dbgf.s.cEnabledHwIoBreakpoints += pVM->dbgf.s.aHwBreakpoints[iBp].u.Reg.fType == X86_DR7_RW_IO;
|
---|
742 | }
|
---|
743 | }
|
---|
744 |
|
---|
745 | return CPUMRecalcHyperDRx(pVCpu, UINT8_MAX, false);
|
---|
746 | }
|
---|
747 |
|
---|
748 |
|
---|
749 | /**
|
---|
750 | * Arms a debug register breakpoint.
|
---|
751 | *
|
---|
752 | * This is used to implement both DBGFR3BpSetReg() and DBGFR3BpEnable().
|
---|
753 | *
|
---|
754 | * @returns VBox status code.
|
---|
755 | * @param pVM The cross context VM structure.
|
---|
756 | * @param pBp The breakpoint.
|
---|
757 | * @thread EMT(0)
|
---|
758 | */
|
---|
759 | static int dbgfR3BpRegArm(PVM pVM, PDBGFBP pBp)
|
---|
760 | {
|
---|
761 | RT_NOREF_PV(pBp);
|
---|
762 | Assert(pBp->fEnabled);
|
---|
763 | return VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE, dbgfR3BpRegRecalcOnCpu, NULL);
|
---|
764 | }
|
---|
765 |
|
---|
766 |
|
---|
767 | /**
|
---|
768 | * Disarms a debug register breakpoint.
|
---|
769 | *
|
---|
770 | * This is used to implement both DBGFR3BpClear() and DBGFR3BpDisable().
|
---|
771 | *
|
---|
772 | * @returns VBox status code.
|
---|
773 | * @param pVM The cross context VM structure.
|
---|
774 | * @param pBp The breakpoint.
|
---|
775 | * @thread EMT(0)
|
---|
776 | */
|
---|
777 | static int dbgfR3BpRegDisarm(PVM pVM, PDBGFBP pBp)
|
---|
778 | {
|
---|
779 | RT_NOREF_PV(pBp);
|
---|
780 | Assert(!pBp->fEnabled);
|
---|
781 | return VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE, dbgfR3BpRegRecalcOnCpu, NULL);
|
---|
782 | }
|
---|
783 |
|
---|
784 |
|
---|
785 | /**
|
---|
786 | * EMT worker for DBGFR3BpSetREM().
|
---|
787 | *
|
---|
788 | * @returns VBox status code.
|
---|
789 | * @param pUVM The user mode VM handle.
|
---|
790 | * @param pAddress The address of the breakpoint.
|
---|
791 | * @param piHitTrigger The hit count at which the breakpoint start triggering.
|
---|
792 | * Use 0 (or 1) if it's gonna trigger at once.
|
---|
793 | * @param piHitDisable The hit count which disables the breakpoint.
|
---|
794 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
795 | * @param piBp Where to store the breakpoint id. (optional)
|
---|
796 | * @thread EMT(0)
|
---|
797 | * @internal
|
---|
798 | */
|
---|
799 | static DECLCALLBACK(int) dbgfR3BpSetREM(PUVM pUVM, PCDBGFADDRESS pAddress, uint64_t *piHitTrigger,
|
---|
800 | uint64_t *piHitDisable, uint32_t *piBp)
|
---|
801 | {
|
---|
802 | /*
|
---|
803 | * Validate input.
|
---|
804 | */
|
---|
805 | PVM pVM = pUVM->pVM;
|
---|
806 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
807 | if (!DBGFR3AddrIsValid(pUVM, pAddress))
|
---|
808 | return VERR_INVALID_PARAMETER;
|
---|
809 | if (*piHitTrigger > *piHitDisable)
|
---|
810 | return VERR_INVALID_PARAMETER;
|
---|
811 | AssertMsgReturn(!piBp || VALID_PTR(piBp), ("piBp=%p\n", piBp), VERR_INVALID_POINTER);
|
---|
812 | if (piBp)
|
---|
813 | *piBp = UINT32_MAX;
|
---|
814 |
|
---|
815 | /*
|
---|
816 | * Check if the breakpoint already exists.
|
---|
817 | */
|
---|
818 | PDBGFBP pBp = dbgfR3BpGetByAddr(pVM, DBGFBPTYPE_REM, pAddress->FlatPtr);
|
---|
819 | if (pBp)
|
---|
820 | {
|
---|
821 | int rc = VINF_SUCCESS;
|
---|
822 | if (!pBp->fEnabled)
|
---|
823 | rc = IEMBreakpointSet(pVM, pBp->u.Rem.GCPtr);
|
---|
824 | if (RT_SUCCESS(rc))
|
---|
825 | {
|
---|
826 | rc = VINF_DBGF_BP_ALREADY_EXIST;
|
---|
827 | if (piBp)
|
---|
828 | *piBp = pBp->iBp;
|
---|
829 | }
|
---|
830 | return rc;
|
---|
831 | }
|
---|
832 |
|
---|
833 | /*
|
---|
834 | * Allocate and initialize the bp.
|
---|
835 | */
|
---|
836 | pBp = dbgfR3BpAlloc(pVM, DBGFBPTYPE_REM);
|
---|
837 | if (!pBp)
|
---|
838 | return VERR_DBGF_NO_MORE_BP_SLOTS;
|
---|
839 | pBp->u.Rem.GCPtr = pAddress->FlatPtr;
|
---|
840 | pBp->iHitTrigger = *piHitTrigger;
|
---|
841 | pBp->iHitDisable = *piHitDisable;
|
---|
842 | ASMCompilerBarrier();
|
---|
843 | pBp->fEnabled = true;
|
---|
844 |
|
---|
845 | /*
|
---|
846 | * Now ask REM to set the breakpoint.
|
---|
847 | */
|
---|
848 | int rc = IEMBreakpointSet(pVM, pAddress->FlatPtr);
|
---|
849 | if (RT_SUCCESS(rc))
|
---|
850 | {
|
---|
851 | if (piBp)
|
---|
852 | *piBp = pBp->iBp;
|
---|
853 | }
|
---|
854 | else
|
---|
855 | dbgfR3BpFree(pVM, pBp);
|
---|
856 |
|
---|
857 | return rc;
|
---|
858 | }
|
---|
859 |
|
---|
860 |
|
---|
861 | /**
|
---|
862 | * Sets a recompiler breakpoint.
|
---|
863 | *
|
---|
864 | * @returns VBox status code.
|
---|
865 | * @param pUVM The user mode VM handle.
|
---|
866 | * @param pAddress The address of the breakpoint.
|
---|
867 | * @param iHitTrigger The hit count at which the breakpoint start triggering.
|
---|
868 | * Use 0 (or 1) if it's gonna trigger at once.
|
---|
869 | * @param iHitDisable The hit count which disables the breakpoint.
|
---|
870 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
871 | * @param piBp Where to store the breakpoint id. (optional)
|
---|
872 | * @thread Any thread.
|
---|
873 | */
|
---|
874 | VMMR3DECL(int) DBGFR3BpSetREM(PUVM pUVM, PCDBGFADDRESS pAddress, uint64_t iHitTrigger, uint64_t iHitDisable, uint32_t *piBp)
|
---|
875 | {
|
---|
876 | /*
|
---|
877 | * This must be done on EMT.
|
---|
878 | */
|
---|
879 | int rc = VMR3ReqCallWaitU(pUVM, 0 /*idDstCpu*/, (PFNRT)dbgfR3BpSetREM, 5,
|
---|
880 | pUVM, pAddress, &iHitTrigger, &iHitDisable, piBp);
|
---|
881 | LogFlow(("DBGFR3BpSetREM: returns %Rrc\n", rc));
|
---|
882 | return rc;
|
---|
883 | }
|
---|
884 |
|
---|
885 |
|
---|
886 | /**
|
---|
887 | * Updates IOM on whether we've got any armed I/O port or MMIO breakpoints.
|
---|
888 | *
|
---|
889 | * @returns VINF_SUCCESS
|
---|
890 | * @param pVM The cross context VM structure.
|
---|
891 | * @thread EMT(0)
|
---|
892 | */
|
---|
893 | static int dbgfR3BpUpdateIom(PVM pVM)
|
---|
894 | {
|
---|
895 | dbgfR3BpUpdateSearchOptimizations(pVM, DBGFBPTYPE_PORT_IO, &pVM->dbgf.s.PortIo);
|
---|
896 | if (pVM->dbgf.s.PortIo.cToSearch)
|
---|
897 | ASMAtomicBitSet(&pVM->dbgf.s.bmSelectedEvents, DBGFEVENT_BREAKPOINT_IO);
|
---|
898 | else
|
---|
899 | ASMAtomicBitClear(&pVM->dbgf.s.bmSelectedEvents, DBGFEVENT_BREAKPOINT_IO);
|
---|
900 |
|
---|
901 | dbgfR3BpUpdateSearchOptimizations(pVM, DBGFBPTYPE_MMIO, &pVM->dbgf.s.Mmio);
|
---|
902 | if (pVM->dbgf.s.Mmio.cToSearch)
|
---|
903 | ASMAtomicBitSet(&pVM->dbgf.s.bmSelectedEvents, DBGFEVENT_BREAKPOINT_MMIO);
|
---|
904 | else
|
---|
905 | ASMAtomicBitClear(&pVM->dbgf.s.bmSelectedEvents, DBGFEVENT_BREAKPOINT_MMIO);
|
---|
906 |
|
---|
907 | IOMR3NotifyBreakpointCountChange(pVM, pVM->dbgf.s.PortIo.cToSearch != 0, pVM->dbgf.s.Mmio.cToSearch != 0);
|
---|
908 | return VINF_SUCCESS;
|
---|
909 | }
|
---|
910 |
|
---|
911 |
|
---|
912 | /**
|
---|
913 | * EMT worker for DBGFR3BpSetPortIo.
|
---|
914 | *
|
---|
915 | * @returns VBox status code.
|
---|
916 | * @param pUVM The user mode VM handle.
|
---|
917 | * @param uPort The first I/O port.
|
---|
918 | * @param cPorts The number of I/O ports.
|
---|
919 | * @param fAccess The access we want to break on.
|
---|
920 | * @param piHitTrigger The hit count at which the breakpoint start triggering.
|
---|
921 | * Use 0 (or 1) if it's gonna trigger at once.
|
---|
922 | * @param piHitDisable The hit count which disables the breakpoint.
|
---|
923 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
924 | * @param piBp Where to store the breakpoint ID.
|
---|
925 | * @thread EMT(0)
|
---|
926 | */
|
---|
927 | static DECLCALLBACK(int) dbgfR3BpSetPortIo(PUVM pUVM, RTIOPORT uPort, RTIOPORT cPorts, uint32_t fAccess,
|
---|
928 | uint64_t const *piHitTrigger, uint64_t const *piHitDisable, uint32_t *piBp)
|
---|
929 | {
|
---|
930 | /*
|
---|
931 | * Validate input.
|
---|
932 | */
|
---|
933 | PVM pVM = pUVM->pVM;
|
---|
934 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
935 | *piBp = UINT32_MAX;
|
---|
936 |
|
---|
937 | /*
|
---|
938 | * Check if the breakpoint already exists.
|
---|
939 | */
|
---|
940 | for (uint32_t i = 0; i < RT_ELEMENTS(pVM->dbgf.s.aBreakpoints); i++)
|
---|
941 | if ( pVM->dbgf.s.aBreakpoints[i].enmType == DBGFBPTYPE_PORT_IO
|
---|
942 | && pVM->dbgf.s.aBreakpoints[i].u.PortIo.uPort == uPort
|
---|
943 | && pVM->dbgf.s.aBreakpoints[i].u.PortIo.cPorts == cPorts
|
---|
944 | && pVM->dbgf.s.aBreakpoints[i].u.PortIo.fAccess == fAccess)
|
---|
945 | {
|
---|
946 | if (!pVM->dbgf.s.aBreakpoints[i].fEnabled)
|
---|
947 | {
|
---|
948 | pVM->dbgf.s.aBreakpoints[i].fEnabled = true;
|
---|
949 | dbgfR3BpUpdateIom(pVM);
|
---|
950 | }
|
---|
951 | *piBp = pVM->dbgf.s.aBreakpoints[i].iBp;
|
---|
952 | return VINF_DBGF_BP_ALREADY_EXIST;
|
---|
953 | }
|
---|
954 |
|
---|
955 | /*
|
---|
956 | * Allocate and initialize the breakpoint.
|
---|
957 | */
|
---|
958 | PDBGFBP pBp = dbgfR3BpAlloc(pVM, DBGFBPTYPE_PORT_IO);
|
---|
959 | if (!pBp)
|
---|
960 | return VERR_DBGF_NO_MORE_BP_SLOTS;
|
---|
961 | pBp->iHitTrigger = *piHitTrigger;
|
---|
962 | pBp->iHitDisable = *piHitDisable;
|
---|
963 | pBp->u.PortIo.uPort = uPort;
|
---|
964 | pBp->u.PortIo.cPorts = cPorts;
|
---|
965 | pBp->u.PortIo.fAccess = fAccess;
|
---|
966 | ASMCompilerBarrier();
|
---|
967 | pBp->fEnabled = true;
|
---|
968 |
|
---|
969 | /*
|
---|
970 | * Tell IOM.
|
---|
971 | */
|
---|
972 | dbgfR3BpUpdateIom(pVM);
|
---|
973 | *piBp = pBp->iBp;
|
---|
974 | return VINF_SUCCESS;
|
---|
975 | }
|
---|
976 |
|
---|
977 |
|
---|
978 | /**
|
---|
979 | * Sets an I/O port breakpoint.
|
---|
980 | *
|
---|
981 | * @returns VBox status code.
|
---|
982 | * @param pUVM The user mode VM handle.
|
---|
983 | * @param uPort The first I/O port.
|
---|
984 | * @param cPorts The number of I/O ports, see DBGFBPIOACCESS_XXX.
|
---|
985 | * @param fAccess The access we want to break on.
|
---|
986 | * @param iHitTrigger The hit count at which the breakpoint start
|
---|
987 | * triggering. Use 0 (or 1) if it's gonna trigger at
|
---|
988 | * once.
|
---|
989 | * @param iHitDisable The hit count which disables the breakpoint.
|
---|
990 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
991 | * @param piBp Where to store the breakpoint ID. Optional.
|
---|
992 | * @thread Any thread.
|
---|
993 | */
|
---|
994 | VMMR3DECL(int) DBGFR3BpSetPortIo(PUVM pUVM, RTIOPORT uPort, RTIOPORT cPorts, uint32_t fAccess,
|
---|
995 | uint64_t iHitTrigger, uint64_t iHitDisable, uint32_t *piBp)
|
---|
996 | {
|
---|
997 | AssertReturn(!(fAccess & ~DBGFBPIOACCESS_VALID_MASK_PORT_IO), VERR_INVALID_FLAGS);
|
---|
998 | AssertReturn(fAccess, VERR_INVALID_FLAGS);
|
---|
999 | if (iHitTrigger > iHitDisable)
|
---|
1000 | return VERR_INVALID_PARAMETER;
|
---|
1001 | AssertPtrNullReturn(piBp, VERR_INVALID_POINTER);
|
---|
1002 | AssertReturn(cPorts > 0, VERR_OUT_OF_RANGE);
|
---|
1003 | AssertReturn((RTIOPORT)(uPort + cPorts) < uPort, VERR_OUT_OF_RANGE);
|
---|
1004 |
|
---|
1005 | /*
|
---|
1006 | * This must be done on EMT.
|
---|
1007 | */
|
---|
1008 | uint32_t iBp = UINT32_MAX;
|
---|
1009 | int rc = VMR3ReqCallWaitU(pUVM, 0 /*idDstCpu*/, (PFNRT)dbgfR3BpSetPortIo, 7,
|
---|
1010 | pUVM, uPort, cPorts, fAccess, &iHitTrigger, &iHitDisable, piBp);
|
---|
1011 | if (piBp)
|
---|
1012 | *piBp = iBp;
|
---|
1013 | LogFlow(("DBGFR3BpSetPortIo: returns %Rrc iBp=%d\n", rc, iBp));
|
---|
1014 | return rc;
|
---|
1015 | }
|
---|
1016 |
|
---|
1017 |
|
---|
1018 | /**
|
---|
1019 | * EMT worker for DBGFR3BpSetMmio.
|
---|
1020 | *
|
---|
1021 | * @returns VBox status code.
|
---|
1022 | * @param pUVM The user mode VM handle.
|
---|
1023 | * @param pGCPhys The start of the MMIO range to break on.
|
---|
1024 | * @param cb The size of the MMIO range.
|
---|
1025 | * @param fAccess The access we want to break on.
|
---|
1026 | * @param piHitTrigger The hit count at which the breakpoint start triggering.
|
---|
1027 | * Use 0 (or 1) if it's gonna trigger at once.
|
---|
1028 | * @param piHitDisable The hit count which disables the breakpoint.
|
---|
1029 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
1030 | * @param piBp Where to store the breakpoint ID.
|
---|
1031 | * @thread EMT(0)
|
---|
1032 | */
|
---|
1033 | static DECLCALLBACK(int) dbgfR3BpSetMmio(PUVM pUVM, PCRTGCPHYS pGCPhys, uint32_t cb, uint32_t fAccess,
|
---|
1034 | uint64_t const *piHitTrigger, uint64_t const *piHitDisable, uint32_t *piBp)
|
---|
1035 | {
|
---|
1036 | RTGCPHYS const GCPhys = *pGCPhys;
|
---|
1037 |
|
---|
1038 | /*
|
---|
1039 | * Validate input.
|
---|
1040 | */
|
---|
1041 | PVM pVM = pUVM->pVM;
|
---|
1042 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
1043 | *piBp = UINT32_MAX;
|
---|
1044 |
|
---|
1045 | /*
|
---|
1046 | * Check if the breakpoint already exists.
|
---|
1047 | */
|
---|
1048 | for (uint32_t i = 0; i < RT_ELEMENTS(pVM->dbgf.s.aBreakpoints); i++)
|
---|
1049 | if ( pVM->dbgf.s.aBreakpoints[i].enmType == DBGFBPTYPE_MMIO
|
---|
1050 | && pVM->dbgf.s.aBreakpoints[i].u.Mmio.PhysAddr == GCPhys
|
---|
1051 | && pVM->dbgf.s.aBreakpoints[i].u.Mmio.cb == cb
|
---|
1052 | && pVM->dbgf.s.aBreakpoints[i].u.Mmio.fAccess == fAccess)
|
---|
1053 | {
|
---|
1054 | if (!pVM->dbgf.s.aBreakpoints[i].fEnabled)
|
---|
1055 | {
|
---|
1056 | pVM->dbgf.s.aBreakpoints[i].fEnabled = true;
|
---|
1057 | dbgfR3BpUpdateIom(pVM);
|
---|
1058 | }
|
---|
1059 | *piBp = pVM->dbgf.s.aBreakpoints[i].iBp;
|
---|
1060 | return VINF_DBGF_BP_ALREADY_EXIST;
|
---|
1061 | }
|
---|
1062 |
|
---|
1063 | /*
|
---|
1064 | * Allocate and initialize the breakpoint.
|
---|
1065 | */
|
---|
1066 | PDBGFBP pBp = dbgfR3BpAlloc(pVM, DBGFBPTYPE_MMIO);
|
---|
1067 | if (!pBp)
|
---|
1068 | return VERR_DBGF_NO_MORE_BP_SLOTS;
|
---|
1069 | pBp->iHitTrigger = *piHitTrigger;
|
---|
1070 | pBp->iHitDisable = *piHitDisable;
|
---|
1071 | pBp->u.Mmio.PhysAddr = GCPhys;
|
---|
1072 | pBp->u.Mmio.cb = cb;
|
---|
1073 | pBp->u.Mmio.fAccess = fAccess;
|
---|
1074 | ASMCompilerBarrier();
|
---|
1075 | pBp->fEnabled = true;
|
---|
1076 |
|
---|
1077 | /*
|
---|
1078 | * Tell IOM.
|
---|
1079 | */
|
---|
1080 | dbgfR3BpUpdateIom(pVM);
|
---|
1081 | *piBp = pBp->iBp;
|
---|
1082 | return VINF_SUCCESS;
|
---|
1083 | }
|
---|
1084 |
|
---|
1085 |
|
---|
1086 | /**
|
---|
1087 | * Sets a memory mapped I/O breakpoint.
|
---|
1088 | *
|
---|
1089 | * @returns VBox status code.
|
---|
1090 | * @param pUVM The user mode VM handle.
|
---|
1091 | * @param GCPhys The first MMIO address.
|
---|
1092 | * @param cb The size of the MMIO range to break on.
|
---|
1093 | * @param fAccess The access we want to break on.
|
---|
1094 | * @param iHitTrigger The hit count at which the breakpoint start
|
---|
1095 | * triggering. Use 0 (or 1) if it's gonna trigger at
|
---|
1096 | * once.
|
---|
1097 | * @param iHitDisable The hit count which disables the breakpoint.
|
---|
1098 | * Use ~(uint64_t) if it's never gonna be disabled.
|
---|
1099 | * @param piBp Where to store the breakpoint ID. Optional.
|
---|
1100 | * @thread Any thread.
|
---|
1101 | */
|
---|
1102 | VMMR3DECL(int) DBGFR3BpSetMmio(PUVM pUVM, RTGCPHYS GCPhys, uint32_t cb, uint32_t fAccess,
|
---|
1103 | uint64_t iHitTrigger, uint64_t iHitDisable, uint32_t *piBp)
|
---|
1104 | {
|
---|
1105 | AssertReturn(!(fAccess & ~DBGFBPIOACCESS_VALID_MASK_MMIO), VERR_INVALID_FLAGS);
|
---|
1106 | AssertReturn(fAccess, VERR_INVALID_FLAGS);
|
---|
1107 | if (iHitTrigger > iHitDisable)
|
---|
1108 | return VERR_INVALID_PARAMETER;
|
---|
1109 | AssertPtrNullReturn(piBp, VERR_INVALID_POINTER);
|
---|
1110 | AssertReturn(cb, VERR_OUT_OF_RANGE);
|
---|
1111 | AssertReturn(GCPhys + cb < GCPhys, VERR_OUT_OF_RANGE);
|
---|
1112 |
|
---|
1113 | /*
|
---|
1114 | * This must be done on EMT.
|
---|
1115 | */
|
---|
1116 | uint32_t iBp = UINT32_MAX;
|
---|
1117 | int rc = VMR3ReqCallWaitU(pUVM, 0 /*idDstCpu*/, (PFNRT)dbgfR3BpSetMmio, 7,
|
---|
1118 | pUVM, &GCPhys, cb, fAccess, &iHitTrigger, &iHitDisable, piBp);
|
---|
1119 | if (piBp)
|
---|
1120 | *piBp = iBp;
|
---|
1121 | LogFlow(("DBGFR3BpSetMmio: returns %Rrc iBp=%d\n", rc, iBp));
|
---|
1122 | return rc;
|
---|
1123 | }
|
---|
1124 |
|
---|
1125 |
|
---|
1126 | /**
|
---|
1127 | * EMT worker for DBGFR3BpClear().
|
---|
1128 | *
|
---|
1129 | * @returns VBox status code.
|
---|
1130 | * @param pUVM The user mode VM handle.
|
---|
1131 | * @param iBp The id of the breakpoint which should be removed (cleared).
|
---|
1132 | * @thread EMT(0)
|
---|
1133 | * @internal
|
---|
1134 | */
|
---|
1135 | static DECLCALLBACK(int) dbgfR3BpClear(PUVM pUVM, uint32_t iBp)
|
---|
1136 | {
|
---|
1137 | /*
|
---|
1138 | * Validate input.
|
---|
1139 | */
|
---|
1140 | PVM pVM = pUVM->pVM;
|
---|
1141 | VM_ASSERT_EMT(pVM);
|
---|
1142 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
1143 | PDBGFBP pBp = dbgfR3BpGet(pVM, iBp);
|
---|
1144 | if (!pBp)
|
---|
1145 | return VERR_DBGF_BP_NOT_FOUND;
|
---|
1146 |
|
---|
1147 | /*
|
---|
1148 | * Disarm the breakpoint if it's enabled.
|
---|
1149 | */
|
---|
1150 | if (pBp->fEnabled)
|
---|
1151 | {
|
---|
1152 | pBp->fEnabled = false;
|
---|
1153 | int rc;
|
---|
1154 | switch (pBp->enmType)
|
---|
1155 | {
|
---|
1156 | case DBGFBPTYPE_REG:
|
---|
1157 | rc = dbgfR3BpRegDisarm(pVM, pBp);
|
---|
1158 | break;
|
---|
1159 |
|
---|
1160 | case DBGFBPTYPE_INT3:
|
---|
1161 | rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, dbgfR3BpDisableInt3OnCpu, pBp);
|
---|
1162 | break;
|
---|
1163 |
|
---|
1164 | case DBGFBPTYPE_REM:
|
---|
1165 | rc = IEMBreakpointClear(pVM, pBp->u.Rem.GCPtr);
|
---|
1166 | break;
|
---|
1167 |
|
---|
1168 | case DBGFBPTYPE_PORT_IO:
|
---|
1169 | case DBGFBPTYPE_MMIO:
|
---|
1170 | rc = dbgfR3BpUpdateIom(pVM);
|
---|
1171 | break;
|
---|
1172 |
|
---|
1173 | default:
|
---|
1174 | AssertMsgFailedReturn(("Invalid enmType=%d!\n", pBp->enmType), VERR_IPE_NOT_REACHED_DEFAULT_CASE);
|
---|
1175 | }
|
---|
1176 | AssertRCReturn(rc, rc);
|
---|
1177 | }
|
---|
1178 |
|
---|
1179 | /*
|
---|
1180 | * Free the breakpoint.
|
---|
1181 | */
|
---|
1182 | dbgfR3BpFree(pVM, pBp);
|
---|
1183 | return VINF_SUCCESS;
|
---|
1184 | }
|
---|
1185 |
|
---|
1186 |
|
---|
1187 | /**
|
---|
1188 | * Clears a breakpoint.
|
---|
1189 | *
|
---|
1190 | * @returns VBox status code.
|
---|
1191 | * @param pUVM The user mode VM handle.
|
---|
1192 | * @param iBp The id of the breakpoint which should be removed (cleared).
|
---|
1193 | * @thread Any thread.
|
---|
1194 | */
|
---|
1195 | VMMR3DECL(int) DBGFR3BpClear(PUVM pUVM, uint32_t iBp)
|
---|
1196 | {
|
---|
1197 | /*
|
---|
1198 | * This must be done on EMT.
|
---|
1199 | */
|
---|
1200 | int rc = VMR3ReqCallWaitU(pUVM, 0 /*idDstCpu*/, (PFNRT)dbgfR3BpClear, 2, pUVM, iBp);
|
---|
1201 | LogFlow(("DBGFR3BpClear: returns %Rrc\n", rc));
|
---|
1202 | return rc;
|
---|
1203 | }
|
---|
1204 |
|
---|
1205 |
|
---|
1206 | /**
|
---|
1207 | * EMT worker for DBGFR3BpEnable().
|
---|
1208 | *
|
---|
1209 | * @returns VBox status code.
|
---|
1210 | * @param pUVM The user mode VM handle.
|
---|
1211 | * @param iBp The id of the breakpoint which should be enabled.
|
---|
1212 | * @thread EMT(0)
|
---|
1213 | * @internal
|
---|
1214 | */
|
---|
1215 | static DECLCALLBACK(int) dbgfR3BpEnable(PUVM pUVM, uint32_t iBp)
|
---|
1216 | {
|
---|
1217 | /*
|
---|
1218 | * Validate input.
|
---|
1219 | */
|
---|
1220 | PVM pVM = pUVM->pVM;
|
---|
1221 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
1222 | PDBGFBP pBp = dbgfR3BpGet(pVM, iBp);
|
---|
1223 | if (!pBp)
|
---|
1224 | return VERR_DBGF_BP_NOT_FOUND;
|
---|
1225 |
|
---|
1226 | /*
|
---|
1227 | * Already enabled?
|
---|
1228 | */
|
---|
1229 | if (pBp->fEnabled)
|
---|
1230 | return VINF_DBGF_BP_ALREADY_ENABLED;
|
---|
1231 |
|
---|
1232 | /*
|
---|
1233 | * Arm the breakpoint.
|
---|
1234 | */
|
---|
1235 | int rc;
|
---|
1236 | pBp->fEnabled = true;
|
---|
1237 | switch (pBp->enmType)
|
---|
1238 | {
|
---|
1239 | case DBGFBPTYPE_REG:
|
---|
1240 | rc = dbgfR3BpRegArm(pVM, pBp);
|
---|
1241 | break;
|
---|
1242 |
|
---|
1243 | case DBGFBPTYPE_INT3:
|
---|
1244 | rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, dbgfR3BpEnableInt3OnCpu, pBp);
|
---|
1245 | break;
|
---|
1246 |
|
---|
1247 | case DBGFBPTYPE_REM:
|
---|
1248 | rc = IEMBreakpointSet(pVM, pBp->u.Rem.GCPtr);
|
---|
1249 | break;
|
---|
1250 |
|
---|
1251 | case DBGFBPTYPE_PORT_IO:
|
---|
1252 | case DBGFBPTYPE_MMIO:
|
---|
1253 | rc = dbgfR3BpUpdateIom(pVM);
|
---|
1254 | break;
|
---|
1255 |
|
---|
1256 | default:
|
---|
1257 | AssertMsgFailedReturn(("Invalid enmType=%d!\n", pBp->enmType), VERR_IPE_NOT_REACHED_DEFAULT_CASE);
|
---|
1258 | }
|
---|
1259 | if (RT_FAILURE(rc))
|
---|
1260 | pBp->fEnabled = false;
|
---|
1261 |
|
---|
1262 | return rc;
|
---|
1263 | }
|
---|
1264 |
|
---|
1265 |
|
---|
1266 | /**
|
---|
1267 | * Enables a breakpoint.
|
---|
1268 | *
|
---|
1269 | * @returns VBox status code.
|
---|
1270 | * @param pUVM The user mode VM handle.
|
---|
1271 | * @param iBp The id of the breakpoint which should be enabled.
|
---|
1272 | * @thread Any thread.
|
---|
1273 | */
|
---|
1274 | VMMR3DECL(int) DBGFR3BpEnable(PUVM pUVM, uint32_t iBp)
|
---|
1275 | {
|
---|
1276 | /*
|
---|
1277 | * This must be done on EMT.
|
---|
1278 | */
|
---|
1279 | int rc = VMR3ReqCallWaitU(pUVM, 0 /*idDstCpu*/, (PFNRT)dbgfR3BpEnable, 2, pUVM, iBp);
|
---|
1280 | LogFlow(("DBGFR3BpEnable: returns %Rrc\n", rc));
|
---|
1281 | return rc;
|
---|
1282 | }
|
---|
1283 |
|
---|
1284 |
|
---|
1285 | /**
|
---|
1286 | * EMT worker for DBGFR3BpDisable().
|
---|
1287 | *
|
---|
1288 | * @returns VBox status code.
|
---|
1289 | * @param pUVM The user mode VM handle.
|
---|
1290 | * @param iBp The id of the breakpoint which should be disabled.
|
---|
1291 | * @thread EMT(0)
|
---|
1292 | * @internal
|
---|
1293 | */
|
---|
1294 | static DECLCALLBACK(int) dbgfR3BpDisable(PUVM pUVM, uint32_t iBp)
|
---|
1295 | {
|
---|
1296 | /*
|
---|
1297 | * Validate input.
|
---|
1298 | */
|
---|
1299 | PVM pVM = pUVM->pVM;
|
---|
1300 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
1301 | PDBGFBP pBp = dbgfR3BpGet(pVM, iBp);
|
---|
1302 | if (!pBp)
|
---|
1303 | return VERR_DBGF_BP_NOT_FOUND;
|
---|
1304 |
|
---|
1305 | /*
|
---|
1306 | * Already enabled?
|
---|
1307 | */
|
---|
1308 | if (!pBp->fEnabled)
|
---|
1309 | return VINF_DBGF_BP_ALREADY_DISABLED;
|
---|
1310 |
|
---|
1311 | /*
|
---|
1312 | * Remove the breakpoint.
|
---|
1313 | */
|
---|
1314 | pBp->fEnabled = false;
|
---|
1315 | int rc;
|
---|
1316 | switch (pBp->enmType)
|
---|
1317 | {
|
---|
1318 | case DBGFBPTYPE_REG:
|
---|
1319 | rc = dbgfR3BpRegDisarm(pVM, pBp);
|
---|
1320 | break;
|
---|
1321 |
|
---|
1322 | case DBGFBPTYPE_INT3:
|
---|
1323 | rc = VMMR3EmtRendezvous(pVM, VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE, dbgfR3BpDisableInt3OnCpu, pBp);
|
---|
1324 | break;
|
---|
1325 |
|
---|
1326 | case DBGFBPTYPE_REM:
|
---|
1327 | rc = IEMBreakpointClear(pVM, pBp->u.Rem.GCPtr);
|
---|
1328 | break;
|
---|
1329 |
|
---|
1330 | case DBGFBPTYPE_PORT_IO:
|
---|
1331 | case DBGFBPTYPE_MMIO:
|
---|
1332 | rc = dbgfR3BpUpdateIom(pVM);
|
---|
1333 | break;
|
---|
1334 |
|
---|
1335 | default:
|
---|
1336 | AssertMsgFailedReturn(("Invalid enmType=%d!\n", pBp->enmType), VERR_IPE_NOT_REACHED_DEFAULT_CASE);
|
---|
1337 | }
|
---|
1338 |
|
---|
1339 | return rc;
|
---|
1340 | }
|
---|
1341 |
|
---|
1342 |
|
---|
1343 | /**
|
---|
1344 | * Disables a breakpoint.
|
---|
1345 | *
|
---|
1346 | * @returns VBox status code.
|
---|
1347 | * @param pUVM The user mode VM handle.
|
---|
1348 | * @param iBp The id of the breakpoint which should be disabled.
|
---|
1349 | * @thread Any thread.
|
---|
1350 | */
|
---|
1351 | VMMR3DECL(int) DBGFR3BpDisable(PUVM pUVM, uint32_t iBp)
|
---|
1352 | {
|
---|
1353 | /*
|
---|
1354 | * This must be done on EMT.
|
---|
1355 | */
|
---|
1356 | int rc = VMR3ReqCallWaitU(pUVM, 0 /*idDstCpu*/, (PFNRT)dbgfR3BpDisable, 2, pUVM, iBp);
|
---|
1357 | LogFlow(("DBGFR3BpDisable: returns %Rrc\n", rc));
|
---|
1358 | return rc;
|
---|
1359 | }
|
---|
1360 |
|
---|
1361 |
|
---|
1362 | /**
|
---|
1363 | * EMT worker for DBGFR3BpEnum().
|
---|
1364 | *
|
---|
1365 | * @returns VBox status code.
|
---|
1366 | * @param pUVM The user mode VM handle.
|
---|
1367 | * @param pfnCallback The callback function.
|
---|
1368 | * @param pvUser The user argument to pass to the callback.
|
---|
1369 | * @thread EMT
|
---|
1370 | * @internal
|
---|
1371 | */
|
---|
1372 | static DECLCALLBACK(int) dbgfR3BpEnum(PUVM pUVM, PFNDBGFBPENUM pfnCallback, void *pvUser)
|
---|
1373 | {
|
---|
1374 | /*
|
---|
1375 | * Validate input.
|
---|
1376 | */
|
---|
1377 | PVM pVM = pUVM->pVM;
|
---|
1378 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
1379 | AssertPtrReturn(pfnCallback, VERR_INVALID_POINTER);
|
---|
1380 |
|
---|
1381 | /*
|
---|
1382 | * Enumerate the hardware breakpoints.
|
---|
1383 | */
|
---|
1384 | unsigned i;
|
---|
1385 | for (i = 0; i < RT_ELEMENTS(pVM->dbgf.s.aHwBreakpoints); i++)
|
---|
1386 | if (pVM->dbgf.s.aHwBreakpoints[i].enmType != DBGFBPTYPE_FREE)
|
---|
1387 | {
|
---|
1388 | int rc = pfnCallback(pUVM, pvUser, &pVM->dbgf.s.aHwBreakpoints[i]);
|
---|
1389 | if (RT_FAILURE(rc) || rc == VINF_CALLBACK_RETURN)
|
---|
1390 | return rc;
|
---|
1391 | }
|
---|
1392 |
|
---|
1393 | /*
|
---|
1394 | * Enumerate the other breakpoints.
|
---|
1395 | */
|
---|
1396 | for (i = 0; i < RT_ELEMENTS(pVM->dbgf.s.aBreakpoints); i++)
|
---|
1397 | if (pVM->dbgf.s.aBreakpoints[i].enmType != DBGFBPTYPE_FREE)
|
---|
1398 | {
|
---|
1399 | int rc = pfnCallback(pUVM, pvUser, &pVM->dbgf.s.aBreakpoints[i]);
|
---|
1400 | if (RT_FAILURE(rc) || rc == VINF_CALLBACK_RETURN)
|
---|
1401 | return rc;
|
---|
1402 | }
|
---|
1403 |
|
---|
1404 | return VINF_SUCCESS;
|
---|
1405 | }
|
---|
1406 |
|
---|
1407 |
|
---|
1408 | /**
|
---|
1409 | * Enumerate the breakpoints.
|
---|
1410 | *
|
---|
1411 | * @returns VBox status code.
|
---|
1412 | * @param pUVM The user mode VM handle.
|
---|
1413 | * @param pfnCallback The callback function.
|
---|
1414 | * @param pvUser The user argument to pass to the callback.
|
---|
1415 | * @thread Any thread but the callback will be called from EMT.
|
---|
1416 | */
|
---|
1417 | VMMR3DECL(int) DBGFR3BpEnum(PUVM pUVM, PFNDBGFBPENUM pfnCallback, void *pvUser)
|
---|
1418 | {
|
---|
1419 | /*
|
---|
1420 | * This must be done on EMT.
|
---|
1421 | */
|
---|
1422 | int rc = VMR3ReqPriorityCallWaitU(pUVM, 0 /*idDstCpu*/, (PFNRT)dbgfR3BpEnum, 3, pUVM, pfnCallback, pvUser);
|
---|
1423 | LogFlow(("DBGFR3BpEnum: returns %Rrc\n", rc));
|
---|
1424 | return rc;
|
---|
1425 | }
|
---|
1426 |
|
---|