1 | /* $Id: VMMR0.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
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2 | /** @file
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3 | * VMM - Host Context Ring 0.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2022 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_VMM
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23 | #include <VBox/vmm/vmm.h>
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24 | #include <VBox/sup.h>
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25 | #include <VBox/vmm/iom.h>
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26 | #include <VBox/vmm/trpm.h>
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27 | #include <VBox/vmm/cpum.h>
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28 | #include <VBox/vmm/pdmapi.h>
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29 | #include <VBox/vmm/pgm.h>
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30 | #ifdef VBOX_WITH_NEM_R0
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31 | # include <VBox/vmm/nem.h>
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32 | #endif
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33 | #include <VBox/vmm/em.h>
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34 | #include <VBox/vmm/stam.h>
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35 | #include <VBox/vmm/tm.h>
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36 | #include "VMMInternal.h"
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37 | #include <VBox/vmm/vmcc.h>
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38 | #include <VBox/vmm/gvm.h>
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39 | #ifdef VBOX_WITH_PCI_PASSTHROUGH
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40 | # include <VBox/vmm/pdmpci.h>
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41 | #endif
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42 | #include <VBox/vmm/apic.h>
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43 |
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44 | #include <VBox/vmm/gvmm.h>
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45 | #include <VBox/vmm/gmm.h>
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46 | #include <VBox/vmm/gim.h>
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47 | #include <VBox/intnet.h>
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48 | #include <VBox/vmm/hm.h>
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49 | #include <VBox/param.h>
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50 | #include <VBox/err.h>
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51 | #include <VBox/version.h>
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52 | #include <VBox/log.h>
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53 |
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54 | #include <iprt/asm-amd64-x86.h>
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55 | #include <iprt/assert.h>
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56 | #include <iprt/crc.h>
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57 | #include <iprt/mem.h>
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58 | #include <iprt/memobj.h>
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59 | #include <iprt/mp.h>
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60 | #include <iprt/once.h>
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61 | #include <iprt/semaphore.h>
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62 | #include <iprt/spinlock.h>
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63 | #include <iprt/stdarg.h>
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64 | #include <iprt/string.h>
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65 | #include <iprt/thread.h>
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66 | #include <iprt/timer.h>
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67 | #include <iprt/time.h>
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68 |
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69 | #include "dtrace/VBoxVMM.h"
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70 |
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71 |
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72 | #if defined(_MSC_VER) && defined(RT_ARCH_AMD64) /** @todo check this with with VC7! */
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73 | # pragma intrinsic(_AddressOfReturnAddress)
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74 | #endif
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75 |
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76 | #if defined(RT_OS_DARWIN) && ARCH_BITS == 32
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77 | # error "32-bit darwin is no longer supported. Go back to 4.3 or earlier!"
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78 | #endif
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79 |
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80 |
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81 | /*********************************************************************************************************************************
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82 | * Internal Functions *
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83 | *********************************************************************************************************************************/
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84 | RT_C_DECLS_BEGIN
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85 | #if defined(RT_ARCH_X86) && (defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD))
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86 | extern uint64_t __udivdi3(uint64_t, uint64_t);
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87 | extern uint64_t __umoddi3(uint64_t, uint64_t);
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88 | #endif
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89 | RT_C_DECLS_END
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90 | static int vmmR0UpdateLoggers(PGVM pGVM, VMCPUID idCpu, PVMMR0UPDATELOGGERSREQ pReq, size_t idxLogger);
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91 | static int vmmR0LogFlusher(PGVM pGVM);
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92 | static int vmmR0LogWaitFlushed(PGVM pGVM, VMCPUID idCpu, size_t idxLogger);
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93 | static int vmmR0InitLoggers(PGVM pGVM);
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94 | static void vmmR0CleanupLoggers(PGVM pGVM);
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95 |
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96 |
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97 | /*********************************************************************************************************************************
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98 | * Global Variables *
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99 | *********************************************************************************************************************************/
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100 | /** Drag in necessary library bits.
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101 | * The runtime lives here (in VMMR0.r0) and VBoxDD*R0.r0 links against us. */
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102 | struct CLANG11WEIRDNOTHROW { PFNRT pfn; } g_VMMR0Deps[] =
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103 | {
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104 | { (PFNRT)RTCrc32 },
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105 | { (PFNRT)RTOnce },
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106 | #if defined(RT_ARCH_X86) && (defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD))
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107 | { (PFNRT)__udivdi3 },
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108 | { (PFNRT)__umoddi3 },
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109 | #endif
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110 | { NULL }
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111 | };
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112 |
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113 | #ifdef RT_OS_SOLARIS
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114 | /* Dependency information for the native solaris loader. */
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115 | extern "C" { char _depends_on[] = "vboxdrv"; }
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116 | #endif
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117 |
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118 |
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119 | /**
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120 | * Initialize the module.
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121 | * This is called when we're first loaded.
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122 | *
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123 | * @returns 0 on success.
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124 | * @returns VBox status on failure.
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125 | * @param hMod Image handle for use in APIs.
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126 | */
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127 | DECLEXPORT(int) ModuleInit(void *hMod)
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128 | {
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129 | #ifdef VBOX_WITH_DTRACE_R0
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130 | /*
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131 | * The first thing to do is register the static tracepoints.
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132 | * (Deregistration is automatic.)
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133 | */
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134 | int rc2 = SUPR0TracerRegisterModule(hMod, &g_VTGObjHeader);
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135 | if (RT_FAILURE(rc2))
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136 | return rc2;
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137 | #endif
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138 | LogFlow(("ModuleInit:\n"));
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139 |
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140 | #ifdef VBOX_WITH_64ON32_CMOS_DEBUG
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141 | /*
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142 | * Display the CMOS debug code.
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143 | */
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144 | ASMOutU8(0x72, 0x03);
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145 | uint8_t bDebugCode = ASMInU8(0x73);
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146 | LogRel(("CMOS Debug Code: %#x (%d)\n", bDebugCode, bDebugCode));
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147 | RTLogComPrintf("CMOS Debug Code: %#x (%d)\n", bDebugCode, bDebugCode);
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148 | #endif
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149 |
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150 | /*
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151 | * Initialize the VMM, GVMM, GMM, HM, PGM (Darwin) and INTNET.
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152 | */
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153 | int rc = vmmInitFormatTypes();
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154 | if (RT_SUCCESS(rc))
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155 | {
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156 | rc = GVMMR0Init();
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157 | if (RT_SUCCESS(rc))
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158 | {
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159 | rc = GMMR0Init();
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160 | if (RT_SUCCESS(rc))
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161 | {
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162 | rc = HMR0Init();
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163 | if (RT_SUCCESS(rc))
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164 | {
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165 | PDMR0Init(hMod);
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166 |
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167 | rc = PGMRegisterStringFormatTypes();
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168 | if (RT_SUCCESS(rc))
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169 | {
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170 | rc = IntNetR0Init();
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171 | if (RT_SUCCESS(rc))
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172 | {
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173 | #ifdef VBOX_WITH_PCI_PASSTHROUGH
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174 | rc = PciRawR0Init();
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175 | #endif
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176 | if (RT_SUCCESS(rc))
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177 | {
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178 | rc = CPUMR0ModuleInit();
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179 | if (RT_SUCCESS(rc))
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180 | {
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181 | #ifdef VBOX_WITH_TRIPLE_FAULT_HACK
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182 | rc = vmmR0TripleFaultHackInit();
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183 | if (RT_SUCCESS(rc))
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184 | #endif
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185 | {
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186 | #ifdef VBOX_WITH_NEM_R0
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187 | rc = NEMR0Init();
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188 | if (RT_SUCCESS(rc))
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189 | #endif
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190 | {
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191 | LogFlow(("ModuleInit: returns success\n"));
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192 | return VINF_SUCCESS;
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193 | }
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194 | }
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195 |
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196 | /*
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197 | * Bail out.
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198 | */
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199 | #ifdef VBOX_WITH_TRIPLE_FAULT_HACK
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200 | vmmR0TripleFaultHackTerm();
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201 | #endif
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202 | }
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203 | else
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204 | LogRel(("ModuleInit: CPUMR0ModuleInit -> %Rrc\n", rc));
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205 | #ifdef VBOX_WITH_PCI_PASSTHROUGH
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206 | PciRawR0Term();
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207 | #endif
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208 | }
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209 | else
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210 | LogRel(("ModuleInit: PciRawR0Init -> %Rrc\n", rc));
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211 | IntNetR0Term();
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212 | }
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213 | else
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214 | LogRel(("ModuleInit: IntNetR0Init -> %Rrc\n", rc));
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215 | PGMDeregisterStringFormatTypes();
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216 | }
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217 | else
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218 | LogRel(("ModuleInit: PGMRegisterStringFormatTypes -> %Rrc\n", rc));
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219 | HMR0Term();
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220 | }
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221 | else
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222 | LogRel(("ModuleInit: HMR0Init -> %Rrc\n", rc));
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223 | GMMR0Term();
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224 | }
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225 | else
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226 | LogRel(("ModuleInit: GMMR0Init -> %Rrc\n", rc));
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227 | GVMMR0Term();
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228 | }
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229 | else
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230 | LogRel(("ModuleInit: GVMMR0Init -> %Rrc\n", rc));
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231 | vmmTermFormatTypes();
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232 | }
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233 | else
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234 | LogRel(("ModuleInit: vmmInitFormatTypes -> %Rrc\n", rc));
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235 |
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236 | LogFlow(("ModuleInit: failed %Rrc\n", rc));
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237 | return rc;
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238 | }
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239 |
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240 |
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241 | /**
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242 | * Terminate the module.
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243 | * This is called when we're finally unloaded.
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244 | *
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245 | * @param hMod Image handle for use in APIs.
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246 | */
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247 | DECLEXPORT(void) ModuleTerm(void *hMod)
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248 | {
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249 | NOREF(hMod);
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250 | LogFlow(("ModuleTerm:\n"));
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251 |
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252 | /*
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253 | * Terminate the CPUM module (Local APIC cleanup).
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254 | */
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255 | CPUMR0ModuleTerm();
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256 |
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257 | /*
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258 | * Terminate the internal network service.
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259 | */
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260 | IntNetR0Term();
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261 |
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262 | /*
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263 | * PGM (Darwin), HM and PciRaw global cleanup.
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264 | */
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265 | #ifdef VBOX_WITH_PCI_PASSTHROUGH
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266 | PciRawR0Term();
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267 | #endif
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268 | PGMDeregisterStringFormatTypes();
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269 | HMR0Term();
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270 | #ifdef VBOX_WITH_TRIPLE_FAULT_HACK
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271 | vmmR0TripleFaultHackTerm();
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272 | #endif
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273 | #ifdef VBOX_WITH_NEM_R0
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274 | NEMR0Term();
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275 | #endif
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276 |
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277 | /*
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278 | * Destroy the GMM and GVMM instances.
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279 | */
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280 | GMMR0Term();
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281 | GVMMR0Term();
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282 |
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283 | vmmTermFormatTypes();
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284 |
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285 | LogFlow(("ModuleTerm: returns\n"));
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286 | }
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287 |
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288 |
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289 | /**
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290 | * Initializes VMM specific members when the GVM structure is created,
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291 | * allocating loggers and stuff.
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292 | *
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293 | * The loggers are allocated here so that we can update their settings before
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294 | * doing VMMR0_DO_VMMR0_INIT and have correct logging at that time.
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295 | *
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296 | * @returns VBox status code.
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297 | * @param pGVM The global (ring-0) VM structure.
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298 | */
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299 | VMMR0_INT_DECL(int) VMMR0InitPerVMData(PGVM pGVM)
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300 | {
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301 | AssertCompile(sizeof(pGVM->vmmr0.s) <= sizeof(pGVM->vmmr0.padding));
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302 |
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303 | /*
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304 | * Initialize all members first.
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305 | */
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306 | pGVM->vmmr0.s.fCalledInitVm = false;
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307 | pGVM->vmmr0.s.hMemObjLogger = NIL_RTR0MEMOBJ;
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308 | pGVM->vmmr0.s.hMapObjLogger = NIL_RTR0MEMOBJ;
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309 | pGVM->vmmr0.s.hMemObjReleaseLogger = NIL_RTR0MEMOBJ;
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310 | pGVM->vmmr0.s.hMapObjReleaseLogger = NIL_RTR0MEMOBJ;
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311 | pGVM->vmmr0.s.LogFlusher.hSpinlock = NIL_RTSPINLOCK;
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312 | pGVM->vmmr0.s.LogFlusher.hThread = NIL_RTNATIVETHREAD;
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313 | pGVM->vmmr0.s.LogFlusher.hEvent = NIL_RTSEMEVENT;
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314 | pGVM->vmmr0.s.LogFlusher.idxRingHead = 0;
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315 | pGVM->vmmr0.s.LogFlusher.idxRingTail = 0;
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316 | pGVM->vmmr0.s.LogFlusher.fThreadWaiting = false;
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317 |
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318 | for (VMCPUID idCpu = 0; idCpu < pGVM->cCpus; idCpu++)
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319 | {
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320 | PGVMCPU pGVCpu = &pGVM->aCpus[idCpu];
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321 | Assert(pGVCpu->idHostCpu == NIL_RTCPUID);
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322 | Assert(pGVCpu->iHostCpuSet == UINT32_MAX);
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323 | pGVCpu->vmmr0.s.pPreemptState = NULL;
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324 | pGVCpu->vmmr0.s.hCtxHook = NIL_RTTHREADCTXHOOK;
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325 | pGVCpu->vmmr0.s.AssertJmpBuf.pMirrorBuf = &pGVCpu->vmm.s.AssertJmpBuf;
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326 | pGVCpu->vmmr0.s.AssertJmpBuf.pvStackBuf = &pGVCpu->vmm.s.abAssertStack[0];
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327 | pGVCpu->vmmr0.s.AssertJmpBuf.cbStackBuf = sizeof(pGVCpu->vmm.s.abAssertStack);
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328 |
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329 | for (size_t iLogger = 0; iLogger < RT_ELEMENTS(pGVCpu->vmmr0.s.u.aLoggers); iLogger++)
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330 | pGVCpu->vmmr0.s.u.aLoggers[iLogger].hEventFlushWait = NIL_RTSEMEVENT;
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331 | }
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332 |
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333 | /*
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334 | * Create the loggers.
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335 | */
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336 | return vmmR0InitLoggers(pGVM);
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337 | }
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338 |
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339 |
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340 | /**
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341 | * Initiates the R0 driver for a particular VM instance.
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342 | *
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343 | * @returns VBox status code.
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344 | *
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345 | * @param pGVM The global (ring-0) VM structure.
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346 | * @param uSvnRev The SVN revision of the ring-3 part.
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347 | * @param uBuildType Build type indicator.
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348 | * @thread EMT(0)
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349 | */
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350 | static int vmmR0InitVM(PGVM pGVM, uint32_t uSvnRev, uint32_t uBuildType)
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351 | {
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352 | /*
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353 | * Match the SVN revisions and build type.
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354 | */
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355 | if (uSvnRev != VMMGetSvnRev())
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356 | {
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357 | LogRel(("VMMR0InitVM: Revision mismatch, r3=%d r0=%d\n", uSvnRev, VMMGetSvnRev()));
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358 | SUPR0Printf("VMMR0InitVM: Revision mismatch, r3=%d r0=%d\n", uSvnRev, VMMGetSvnRev());
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359 | return VERR_VMM_R0_VERSION_MISMATCH;
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360 | }
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361 | if (uBuildType != vmmGetBuildType())
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362 | {
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363 | LogRel(("VMMR0InitVM: Build type mismatch, r3=%#x r0=%#x\n", uBuildType, vmmGetBuildType()));
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364 | SUPR0Printf("VMMR0InitVM: Build type mismatch, r3=%#x r0=%#x\n", uBuildType, vmmGetBuildType());
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365 | return VERR_VMM_R0_VERSION_MISMATCH;
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366 | }
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367 |
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368 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0 /*idCpu*/);
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369 | if (RT_FAILURE(rc))
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370 | return rc;
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371 |
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372 | /* Don't allow this to be called more than once. */
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373 | if (!pGVM->vmmr0.s.fCalledInitVm)
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374 | pGVM->vmmr0.s.fCalledInitVm = true;
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375 | else
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376 | return VERR_ALREADY_INITIALIZED;
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377 |
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378 | #ifdef LOG_ENABLED
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379 |
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380 | /*
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381 | * Register the EMT R0 logger instance for VCPU 0.
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382 | */
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383 | PVMCPUCC pVCpu = VMCC_GET_CPU_0(pGVM);
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384 | if (pVCpu->vmmr0.s.u.s.Logger.pLogger)
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385 | {
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386 | # if 0 /* testing of the logger. */
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387 | LogCom(("vmmR0InitVM: before %p\n", RTLogDefaultInstance()));
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388 | LogCom(("vmmR0InitVM: pfnFlush=%p actual=%p\n", pR0Logger->Logger.pfnFlush, vmmR0LoggerFlush));
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389 | LogCom(("vmmR0InitVM: pfnLogger=%p actual=%p\n", pR0Logger->Logger.pfnLogger, vmmR0LoggerWrapper));
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390 | LogCom(("vmmR0InitVM: offScratch=%d fFlags=%#x fDestFlags=%#x\n", pR0Logger->Logger.offScratch, pR0Logger->Logger.fFlags, pR0Logger->Logger.fDestFlags));
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391 |
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392 | RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pGVM->pSession);
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393 | LogCom(("vmmR0InitVM: after %p reg\n", RTLogDefaultInstance()));
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394 | RTLogSetDefaultInstanceThread(NULL, pGVM->pSession);
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395 | LogCom(("vmmR0InitVM: after %p dereg\n", RTLogDefaultInstance()));
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396 |
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397 | pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
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398 | LogCom(("vmmR0InitVM: returned successfully from direct logger call.\n"));
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399 | pR0Logger->Logger.pfnFlush(&pR0Logger->Logger);
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400 | LogCom(("vmmR0InitVM: returned successfully from direct flush call.\n"));
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401 |
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402 | RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pGVM->pSession);
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403 | LogCom(("vmmR0InitVM: after %p reg2\n", RTLogDefaultInstance()));
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404 | pR0Logger->Logger.pfnLogger("hello ring-0 logger\n");
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405 | LogCom(("vmmR0InitVM: returned successfully from direct logger call (2). offScratch=%d\n", pR0Logger->Logger.offScratch));
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406 | RTLogSetDefaultInstanceThread(NULL, pGVM->pSession);
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407 | LogCom(("vmmR0InitVM: after %p dereg2\n", RTLogDefaultInstance()));
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408 |
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409 | RTLogLoggerEx(&pR0Logger->Logger, 0, ~0U, "hello ring-0 logger (RTLogLoggerEx)\n");
|
---|
410 | LogCom(("vmmR0InitVM: RTLogLoggerEx returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
|
---|
411 |
|
---|
412 | RTLogSetDefaultInstanceThread(&pR0Logger->Logger, (uintptr_t)pGVM->pSession);
|
---|
413 | RTLogPrintf("hello ring-0 logger (RTLogPrintf)\n");
|
---|
414 | LogCom(("vmmR0InitVM: RTLogPrintf returned fine offScratch=%d\n", pR0Logger->Logger.offScratch));
|
---|
415 | # endif
|
---|
416 | # ifdef VBOX_WITH_R0_LOGGING
|
---|
417 | Log(("Switching to per-thread logging instance %p (key=%p)\n", pVCpu->vmmr0.s.u.s.Logger.pLogger, pGVM->pSession));
|
---|
418 | RTLogSetDefaultInstanceThread(pVCpu->vmmr0.s.u.s.Logger.pLogger, (uintptr_t)pGVM->pSession);
|
---|
419 | pVCpu->vmmr0.s.u.s.Logger.fRegistered = true;
|
---|
420 | # endif
|
---|
421 | }
|
---|
422 | #endif /* LOG_ENABLED */
|
---|
423 |
|
---|
424 | /*
|
---|
425 | * Check if the host supports high resolution timers or not.
|
---|
426 | */
|
---|
427 | if ( pGVM->vmm.s.fUsePeriodicPreemptionTimers
|
---|
428 | && !RTTimerCanDoHighResolution())
|
---|
429 | pGVM->vmm.s.fUsePeriodicPreemptionTimers = false;
|
---|
430 |
|
---|
431 | /*
|
---|
432 | * Initialize the per VM data for GVMM and GMM.
|
---|
433 | */
|
---|
434 | rc = GVMMR0InitVM(pGVM);
|
---|
435 | if (RT_SUCCESS(rc))
|
---|
436 | {
|
---|
437 | /*
|
---|
438 | * Init HM, CPUM and PGM (Darwin only).
|
---|
439 | */
|
---|
440 | rc = HMR0InitVM(pGVM);
|
---|
441 | if (RT_SUCCESS(rc))
|
---|
442 | {
|
---|
443 | rc = CPUMR0InitVM(pGVM);
|
---|
444 | if (RT_SUCCESS(rc))
|
---|
445 | {
|
---|
446 | rc = PGMR0InitVM(pGVM);
|
---|
447 | if (RT_SUCCESS(rc))
|
---|
448 | {
|
---|
449 | rc = EMR0InitVM(pGVM);
|
---|
450 | if (RT_SUCCESS(rc))
|
---|
451 | {
|
---|
452 | #ifdef VBOX_WITH_PCI_PASSTHROUGH
|
---|
453 | rc = PciRawR0InitVM(pGVM);
|
---|
454 | #endif
|
---|
455 | if (RT_SUCCESS(rc))
|
---|
456 | {
|
---|
457 | rc = GIMR0InitVM(pGVM);
|
---|
458 | if (RT_SUCCESS(rc))
|
---|
459 | {
|
---|
460 | GVMMR0DoneInitVM(pGVM);
|
---|
461 |
|
---|
462 | /*
|
---|
463 | * Collect a bit of info for the VM release log.
|
---|
464 | */
|
---|
465 | pGVM->vmm.s.fIsPreemptPendingApiTrusty = RTThreadPreemptIsPendingTrusty();
|
---|
466 | pGVM->vmm.s.fIsPreemptPossible = RTThreadPreemptIsPossible();;
|
---|
467 | return rc;
|
---|
468 |
|
---|
469 | /* bail out*/
|
---|
470 | //GIMR0TermVM(pGVM);
|
---|
471 | }
|
---|
472 | #ifdef VBOX_WITH_PCI_PASSTHROUGH
|
---|
473 | PciRawR0TermVM(pGVM);
|
---|
474 | #endif
|
---|
475 | }
|
---|
476 | }
|
---|
477 | }
|
---|
478 | }
|
---|
479 | HMR0TermVM(pGVM);
|
---|
480 | }
|
---|
481 | }
|
---|
482 |
|
---|
483 | RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pGVM->pSession);
|
---|
484 | return rc;
|
---|
485 | }
|
---|
486 |
|
---|
487 |
|
---|
488 | /**
|
---|
489 | * Does EMT specific VM initialization.
|
---|
490 | *
|
---|
491 | * @returns VBox status code.
|
---|
492 | * @param pGVM The ring-0 VM structure.
|
---|
493 | * @param idCpu The EMT that's calling.
|
---|
494 | */
|
---|
495 | static int vmmR0InitVMEmt(PGVM pGVM, VMCPUID idCpu)
|
---|
496 | {
|
---|
497 | /* Paranoia (caller checked these already). */
|
---|
498 | AssertReturn(idCpu < pGVM->cCpus, VERR_INVALID_CPU_ID);
|
---|
499 | AssertReturn(pGVM->aCpus[idCpu].hEMT == RTThreadNativeSelf(), VERR_INVALID_CPU_ID);
|
---|
500 |
|
---|
501 | #if defined(LOG_ENABLED) && defined(VBOX_WITH_R0_LOGGING)
|
---|
502 | /*
|
---|
503 | * Registration of ring 0 loggers.
|
---|
504 | */
|
---|
505 | PVMCPUCC pVCpu = &pGVM->aCpus[idCpu];
|
---|
506 | if ( pVCpu->vmmr0.s.u.s.Logger.pLogger
|
---|
507 | && !pVCpu->vmmr0.s.u.s.Logger.fRegistered)
|
---|
508 | {
|
---|
509 | RTLogSetDefaultInstanceThread(pVCpu->vmmr0.s.u.s.Logger.pLogger, (uintptr_t)pGVM->pSession);
|
---|
510 | pVCpu->vmmr0.s.u.s.Logger.fRegistered = true;
|
---|
511 | }
|
---|
512 | #endif
|
---|
513 |
|
---|
514 | return VINF_SUCCESS;
|
---|
515 | }
|
---|
516 |
|
---|
517 |
|
---|
518 |
|
---|
519 | /**
|
---|
520 | * Terminates the R0 bits for a particular VM instance.
|
---|
521 | *
|
---|
522 | * This is normally called by ring-3 as part of the VM termination process, but
|
---|
523 | * may alternatively be called during the support driver session cleanup when
|
---|
524 | * the VM object is destroyed (see GVMM).
|
---|
525 | *
|
---|
526 | * @returns VBox status code.
|
---|
527 | *
|
---|
528 | * @param pGVM The global (ring-0) VM structure.
|
---|
529 | * @param idCpu Set to 0 if EMT(0) or NIL_VMCPUID if session cleanup
|
---|
530 | * thread.
|
---|
531 | * @thread EMT(0) or session clean up thread.
|
---|
532 | */
|
---|
533 | VMMR0_INT_DECL(int) VMMR0TermVM(PGVM pGVM, VMCPUID idCpu)
|
---|
534 | {
|
---|
535 | /*
|
---|
536 | * Check EMT(0) claim if we're called from userland.
|
---|
537 | */
|
---|
538 | if (idCpu != NIL_VMCPUID)
|
---|
539 | {
|
---|
540 | AssertReturn(idCpu == 0, VERR_INVALID_CPU_ID);
|
---|
541 | int rc = GVMMR0ValidateGVMandEMT(pGVM, idCpu);
|
---|
542 | if (RT_FAILURE(rc))
|
---|
543 | return rc;
|
---|
544 | }
|
---|
545 |
|
---|
546 | #ifdef VBOX_WITH_PCI_PASSTHROUGH
|
---|
547 | PciRawR0TermVM(pGVM);
|
---|
548 | #endif
|
---|
549 |
|
---|
550 | /*
|
---|
551 | * Tell GVMM what we're up to and check that we only do this once.
|
---|
552 | */
|
---|
553 | if (GVMMR0DoingTermVM(pGVM))
|
---|
554 | {
|
---|
555 | GIMR0TermVM(pGVM);
|
---|
556 |
|
---|
557 | /** @todo I wish to call PGMR0PhysFlushHandyPages(pGVM, &pGVM->aCpus[idCpu])
|
---|
558 | * here to make sure we don't leak any shared pages if we crash... */
|
---|
559 | HMR0TermVM(pGVM);
|
---|
560 | }
|
---|
561 |
|
---|
562 | /*
|
---|
563 | * Deregister the logger for this EMT.
|
---|
564 | */
|
---|
565 | RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pGVM->pSession);
|
---|
566 |
|
---|
567 | /*
|
---|
568 | * Start log flusher thread termination.
|
---|
569 | */
|
---|
570 | ASMAtomicWriteBool(&pGVM->vmmr0.s.LogFlusher.fThreadShutdown, true);
|
---|
571 | if (pGVM->vmmr0.s.LogFlusher.hEvent != NIL_RTSEMEVENT)
|
---|
572 | RTSemEventSignal(pGVM->vmmr0.s.LogFlusher.hEvent);
|
---|
573 |
|
---|
574 | return VINF_SUCCESS;
|
---|
575 | }
|
---|
576 |
|
---|
577 |
|
---|
578 | /**
|
---|
579 | * This is called at the end of gvmmR0CleanupVM().
|
---|
580 | *
|
---|
581 | * @param pGVM The global (ring-0) VM structure.
|
---|
582 | */
|
---|
583 | VMMR0_INT_DECL(void) VMMR0CleanupVM(PGVM pGVM)
|
---|
584 | {
|
---|
585 | AssertCompile(NIL_RTTHREADCTXHOOK == (RTTHREADCTXHOOK)0); /* Depends on zero initialized memory working for NIL at the moment. */
|
---|
586 | for (VMCPUID idCpu = 0; idCpu < pGVM->cCpus; idCpu++)
|
---|
587 | {
|
---|
588 | PGVMCPU pGVCpu = &pGVM->aCpus[idCpu];
|
---|
589 |
|
---|
590 | /** @todo Can we busy wait here for all thread-context hooks to be
|
---|
591 | * deregistered before releasing (destroying) it? Only until we find a
|
---|
592 | * solution for not deregistering hooks everytime we're leaving HMR0
|
---|
593 | * context. */
|
---|
594 | VMMR0ThreadCtxHookDestroyForEmt(pGVCpu);
|
---|
595 | }
|
---|
596 |
|
---|
597 | vmmR0CleanupLoggers(pGVM);
|
---|
598 | }
|
---|
599 |
|
---|
600 |
|
---|
601 | /**
|
---|
602 | * An interrupt or unhalt force flag is set, deal with it.
|
---|
603 | *
|
---|
604 | * @returns VINF_SUCCESS (or VINF_EM_HALT).
|
---|
605 | * @param pVCpu The cross context virtual CPU structure.
|
---|
606 | * @param uMWait Result from EMMonitorWaitIsActive().
|
---|
607 | * @param enmInterruptibility Guest CPU interruptbility level.
|
---|
608 | */
|
---|
609 | static int vmmR0DoHaltInterrupt(PVMCPUCC pVCpu, unsigned uMWait, CPUMINTERRUPTIBILITY enmInterruptibility)
|
---|
610 | {
|
---|
611 | Assert(!TRPMHasTrap(pVCpu));
|
---|
612 | Assert( enmInterruptibility > CPUMINTERRUPTIBILITY_INVALID
|
---|
613 | && enmInterruptibility < CPUMINTERRUPTIBILITY_END);
|
---|
614 |
|
---|
615 | /*
|
---|
616 | * Pending interrupts w/o any SMIs or NMIs? That the usual case.
|
---|
617 | */
|
---|
618 | if ( VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_INTERRUPT_APIC | VMCPU_FF_INTERRUPT_PIC)
|
---|
619 | && !VMCPU_FF_IS_ANY_SET(pVCpu, VMCPU_FF_INTERRUPT_SMI | VMCPU_FF_INTERRUPT_NMI))
|
---|
620 | {
|
---|
621 | if (enmInterruptibility <= CPUMINTERRUPTIBILITY_UNRESTRAINED)
|
---|
622 | {
|
---|
623 | uint8_t u8Interrupt = 0;
|
---|
624 | int rc = PDMGetInterrupt(pVCpu, &u8Interrupt);
|
---|
625 | Log(("vmmR0DoHaltInterrupt: CPU%d u8Interrupt=%d (%#x) rc=%Rrc\n", pVCpu->idCpu, u8Interrupt, u8Interrupt, rc));
|
---|
626 | if (RT_SUCCESS(rc))
|
---|
627 | {
|
---|
628 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_UNHALT);
|
---|
629 |
|
---|
630 | rc = TRPMAssertTrap(pVCpu, u8Interrupt, TRPM_HARDWARE_INT);
|
---|
631 | AssertRCSuccess(rc);
|
---|
632 | STAM_REL_COUNTER_INC(&pVCpu->vmm.s.StatR0HaltExec);
|
---|
633 | return rc;
|
---|
634 | }
|
---|
635 | }
|
---|
636 | }
|
---|
637 | /*
|
---|
638 | * SMI is not implemented yet, at least not here.
|
---|
639 | */
|
---|
640 | else if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_INTERRUPT_SMI))
|
---|
641 | {
|
---|
642 | Log12(("vmmR0DoHaltInterrupt: CPU%d failed #3\n", pVCpu->idCpu));
|
---|
643 | STAM_REL_COUNTER_INC(&pVCpu->vmm.s.StatR0HaltToR3);
|
---|
644 | return VINF_EM_HALT;
|
---|
645 | }
|
---|
646 | /*
|
---|
647 | * NMI.
|
---|
648 | */
|
---|
649 | else if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_INTERRUPT_NMI))
|
---|
650 | {
|
---|
651 | if (enmInterruptibility < CPUMINTERRUPTIBILITY_NMI_INHIBIT)
|
---|
652 | {
|
---|
653 | /** @todo later. */
|
---|
654 | Log12(("vmmR0DoHaltInterrupt: CPU%d failed #2 (uMWait=%u enmInt=%d)\n", pVCpu->idCpu, uMWait, enmInterruptibility));
|
---|
655 | STAM_REL_COUNTER_INC(&pVCpu->vmm.s.StatR0HaltToR3);
|
---|
656 | return VINF_EM_HALT;
|
---|
657 | }
|
---|
658 | }
|
---|
659 | /*
|
---|
660 | * Nested-guest virtual interrupt.
|
---|
661 | */
|
---|
662 | else if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_INTERRUPT_NESTED_GUEST))
|
---|
663 | {
|
---|
664 | if (enmInterruptibility < CPUMINTERRUPTIBILITY_VIRT_INT_DISABLED)
|
---|
665 | {
|
---|
666 | /** @todo NSTVMX: NSTSVM: Remember, we might have to check and perform VM-exits
|
---|
667 | * here before injecting the virtual interrupt. See emR3ForcedActions
|
---|
668 | * for details. */
|
---|
669 | Log12(("vmmR0DoHaltInterrupt: CPU%d failed #1 (uMWait=%u enmInt=%d)\n", pVCpu->idCpu, uMWait, enmInterruptibility));
|
---|
670 | STAM_REL_COUNTER_INC(&pVCpu->vmm.s.StatR0HaltToR3);
|
---|
671 | return VINF_EM_HALT;
|
---|
672 | }
|
---|
673 | }
|
---|
674 |
|
---|
675 | if (VMCPU_FF_TEST_AND_CLEAR(pVCpu, VMCPU_FF_UNHALT))
|
---|
676 | {
|
---|
677 | STAM_REL_COUNTER_INC(&pVCpu->vmm.s.StatR0HaltExec);
|
---|
678 | Log11(("vmmR0DoHaltInterrupt: CPU%d success VINF_SUCCESS (UNHALT)\n", pVCpu->idCpu));
|
---|
679 | return VINF_SUCCESS;
|
---|
680 | }
|
---|
681 | if (uMWait > 1)
|
---|
682 | {
|
---|
683 | STAM_REL_COUNTER_INC(&pVCpu->vmm.s.StatR0HaltExec);
|
---|
684 | Log11(("vmmR0DoHaltInterrupt: CPU%d success VINF_SUCCESS (uMWait=%u > 1)\n", pVCpu->idCpu, uMWait));
|
---|
685 | return VINF_SUCCESS;
|
---|
686 | }
|
---|
687 |
|
---|
688 | Log12(("vmmR0DoHaltInterrupt: CPU%d failed #0 (uMWait=%u enmInt=%d)\n", pVCpu->idCpu, uMWait, enmInterruptibility));
|
---|
689 | STAM_REL_COUNTER_INC(&pVCpu->vmm.s.StatR0HaltToR3);
|
---|
690 | return VINF_EM_HALT;
|
---|
691 | }
|
---|
692 |
|
---|
693 |
|
---|
694 | /**
|
---|
695 | * This does one round of vmR3HaltGlobal1Halt().
|
---|
696 | *
|
---|
697 | * The rational here is that we'll reduce latency in interrupt situations if we
|
---|
698 | * don't go to ring-3 immediately on a VINF_EM_HALT (guest executed HLT or
|
---|
699 | * MWAIT), but do one round of blocking here instead and hope the interrupt is
|
---|
700 | * raised in the meanwhile.
|
---|
701 | *
|
---|
702 | * If we go to ring-3 we'll quit the inner HM/NEM loop in EM and end up in the
|
---|
703 | * outer loop, which will then call VMR3WaitHalted() and that in turn will do a
|
---|
704 | * ring-0 call (unless we're too close to a timer event). When the interrupt
|
---|
705 | * wakes us up, we'll return from ring-0 and EM will by instinct do a
|
---|
706 | * rescheduling (because of raw-mode) before it resumes the HM/NEM loop and gets
|
---|
707 | * back to VMMR0EntryFast().
|
---|
708 | *
|
---|
709 | * @returns VINF_SUCCESS or VINF_EM_HALT.
|
---|
710 | * @param pGVM The ring-0 VM structure.
|
---|
711 | * @param pGVCpu The ring-0 virtual CPU structure.
|
---|
712 | *
|
---|
713 | * @todo r=bird: All the blocking/waiting and EMT managment should move out of
|
---|
714 | * the VM module, probably to VMM. Then this would be more weird wrt
|
---|
715 | * parameters and statistics.
|
---|
716 | */
|
---|
717 | static int vmmR0DoHalt(PGVM pGVM, PGVMCPU pGVCpu)
|
---|
718 | {
|
---|
719 | /*
|
---|
720 | * Do spin stat historization.
|
---|
721 | */
|
---|
722 | if (++pGVCpu->vmm.s.cR0Halts & 0xff)
|
---|
723 | { /* likely */ }
|
---|
724 | else if (pGVCpu->vmm.s.cR0HaltsSucceeded > pGVCpu->vmm.s.cR0HaltsToRing3)
|
---|
725 | {
|
---|
726 | pGVCpu->vmm.s.cR0HaltsSucceeded = 2;
|
---|
727 | pGVCpu->vmm.s.cR0HaltsToRing3 = 0;
|
---|
728 | }
|
---|
729 | else
|
---|
730 | {
|
---|
731 | pGVCpu->vmm.s.cR0HaltsSucceeded = 0;
|
---|
732 | pGVCpu->vmm.s.cR0HaltsToRing3 = 2;
|
---|
733 | }
|
---|
734 |
|
---|
735 | /*
|
---|
736 | * Flags that makes us go to ring-3.
|
---|
737 | */
|
---|
738 | uint32_t const fVmFFs = VM_FF_TM_VIRTUAL_SYNC | VM_FF_PDM_QUEUES | VM_FF_PDM_DMA
|
---|
739 | | VM_FF_DBGF | VM_FF_REQUEST | VM_FF_CHECK_VM_STATE
|
---|
740 | | VM_FF_RESET | VM_FF_EMT_RENDEZVOUS | VM_FF_PGM_NEED_HANDY_PAGES
|
---|
741 | | VM_FF_PGM_NO_MEMORY | VM_FF_DEBUG_SUSPEND;
|
---|
742 | uint64_t const fCpuFFs = VMCPU_FF_TIMER | VMCPU_FF_PDM_CRITSECT | VMCPU_FF_IEM
|
---|
743 | | VMCPU_FF_REQUEST | VMCPU_FF_DBGF | VMCPU_FF_HM_UPDATE_CR3
|
---|
744 | | VMCPU_FF_PGM_SYNC_CR3 | VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL
|
---|
745 | | VMCPU_FF_TO_R3 | VMCPU_FF_IOM;
|
---|
746 |
|
---|
747 | /*
|
---|
748 | * Check preconditions.
|
---|
749 | */
|
---|
750 | unsigned const uMWait = EMMonitorWaitIsActive(pGVCpu);
|
---|
751 | CPUMINTERRUPTIBILITY const enmInterruptibility = CPUMGetGuestInterruptibility(pGVCpu);
|
---|
752 | if ( pGVCpu->vmm.s.fMayHaltInRing0
|
---|
753 | && !TRPMHasTrap(pGVCpu)
|
---|
754 | && ( enmInterruptibility == CPUMINTERRUPTIBILITY_UNRESTRAINED
|
---|
755 | || uMWait > 1))
|
---|
756 | {
|
---|
757 | if ( !VM_FF_IS_ANY_SET(pGVM, fVmFFs)
|
---|
758 | && !VMCPU_FF_IS_ANY_SET(pGVCpu, fCpuFFs))
|
---|
759 | {
|
---|
760 | /*
|
---|
761 | * Interrupts pending already?
|
---|
762 | */
|
---|
763 | if (VMCPU_FF_TEST_AND_CLEAR(pGVCpu, VMCPU_FF_UPDATE_APIC))
|
---|
764 | APICUpdatePendingInterrupts(pGVCpu);
|
---|
765 |
|
---|
766 | /*
|
---|
767 | * Flags that wake up from the halted state.
|
---|
768 | */
|
---|
769 | uint64_t const fIntMask = VMCPU_FF_INTERRUPT_APIC | VMCPU_FF_INTERRUPT_PIC | VMCPU_FF_INTERRUPT_NESTED_GUEST
|
---|
770 | | VMCPU_FF_INTERRUPT_NMI | VMCPU_FF_INTERRUPT_SMI | VMCPU_FF_UNHALT;
|
---|
771 |
|
---|
772 | if (VMCPU_FF_IS_ANY_SET(pGVCpu, fIntMask))
|
---|
773 | return vmmR0DoHaltInterrupt(pGVCpu, uMWait, enmInterruptibility);
|
---|
774 | ASMNopPause();
|
---|
775 |
|
---|
776 | /*
|
---|
777 | * Check out how long till the next timer event.
|
---|
778 | */
|
---|
779 | uint64_t u64Delta;
|
---|
780 | uint64_t u64GipTime = TMTimerPollGIP(pGVM, pGVCpu, &u64Delta);
|
---|
781 |
|
---|
782 | if ( !VM_FF_IS_ANY_SET(pGVM, fVmFFs)
|
---|
783 | && !VMCPU_FF_IS_ANY_SET(pGVCpu, fCpuFFs))
|
---|
784 | {
|
---|
785 | if (VMCPU_FF_TEST_AND_CLEAR(pGVCpu, VMCPU_FF_UPDATE_APIC))
|
---|
786 | APICUpdatePendingInterrupts(pGVCpu);
|
---|
787 |
|
---|
788 | if (VMCPU_FF_IS_ANY_SET(pGVCpu, fIntMask))
|
---|
789 | return vmmR0DoHaltInterrupt(pGVCpu, uMWait, enmInterruptibility);
|
---|
790 |
|
---|
791 | /*
|
---|
792 | * Wait if there is enough time to the next timer event.
|
---|
793 | */
|
---|
794 | if (u64Delta >= pGVCpu->vmm.s.cNsSpinBlockThreshold)
|
---|
795 | {
|
---|
796 | /* If there are few other CPU cores around, we will procrastinate a
|
---|
797 | little before going to sleep, hoping for some device raising an
|
---|
798 | interrupt or similar. Though, the best thing here would be to
|
---|
799 | dynamically adjust the spin count according to its usfulness or
|
---|
800 | something... */
|
---|
801 | if ( pGVCpu->vmm.s.cR0HaltsSucceeded > pGVCpu->vmm.s.cR0HaltsToRing3
|
---|
802 | && RTMpGetOnlineCount() >= 4)
|
---|
803 | {
|
---|
804 | /** @todo Figure out how we can skip this if it hasn't help recently...
|
---|
805 | * @bugref{9172#c12} */
|
---|
806 | uint32_t cSpinLoops = 42;
|
---|
807 | while (cSpinLoops-- > 0)
|
---|
808 | {
|
---|
809 | ASMNopPause();
|
---|
810 | if (VMCPU_FF_TEST_AND_CLEAR(pGVCpu, VMCPU_FF_UPDATE_APIC))
|
---|
811 | APICUpdatePendingInterrupts(pGVCpu);
|
---|
812 | ASMNopPause();
|
---|
813 | if (VM_FF_IS_ANY_SET(pGVM, fVmFFs))
|
---|
814 | {
|
---|
815 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3FromSpin);
|
---|
816 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3);
|
---|
817 | return VINF_EM_HALT;
|
---|
818 | }
|
---|
819 | ASMNopPause();
|
---|
820 | if (VMCPU_FF_IS_ANY_SET(pGVCpu, fCpuFFs))
|
---|
821 | {
|
---|
822 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3FromSpin);
|
---|
823 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3);
|
---|
824 | return VINF_EM_HALT;
|
---|
825 | }
|
---|
826 | ASMNopPause();
|
---|
827 | if (VMCPU_FF_IS_ANY_SET(pGVCpu, fIntMask))
|
---|
828 | {
|
---|
829 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltExecFromSpin);
|
---|
830 | return vmmR0DoHaltInterrupt(pGVCpu, uMWait, enmInterruptibility);
|
---|
831 | }
|
---|
832 | ASMNopPause();
|
---|
833 | }
|
---|
834 | }
|
---|
835 |
|
---|
836 | /*
|
---|
837 | * We have to set the state to VMCPUSTATE_STARTED_HALTED here so ring-3
|
---|
838 | * knows when to notify us (cannot access VMINTUSERPERVMCPU::fWait from here).
|
---|
839 | * After changing the state we must recheck the force flags of course.
|
---|
840 | */
|
---|
841 | if (VMCPU_CMPXCHG_STATE(pGVCpu, VMCPUSTATE_STARTED_HALTED, VMCPUSTATE_STARTED))
|
---|
842 | {
|
---|
843 | if ( !VM_FF_IS_ANY_SET(pGVM, fVmFFs)
|
---|
844 | && !VMCPU_FF_IS_ANY_SET(pGVCpu, fCpuFFs))
|
---|
845 | {
|
---|
846 | if (VMCPU_FF_TEST_AND_CLEAR(pGVCpu, VMCPU_FF_UPDATE_APIC))
|
---|
847 | APICUpdatePendingInterrupts(pGVCpu);
|
---|
848 |
|
---|
849 | if (VMCPU_FF_IS_ANY_SET(pGVCpu, fIntMask))
|
---|
850 | {
|
---|
851 | VMCPU_CMPXCHG_STATE(pGVCpu, VMCPUSTATE_STARTED, VMCPUSTATE_STARTED_HALTED);
|
---|
852 | return vmmR0DoHaltInterrupt(pGVCpu, uMWait, enmInterruptibility);
|
---|
853 | }
|
---|
854 |
|
---|
855 | /* Okay, block! */
|
---|
856 | uint64_t const u64StartSchedHalt = RTTimeNanoTS();
|
---|
857 | int rc = GVMMR0SchedHalt(pGVM, pGVCpu, u64GipTime);
|
---|
858 | uint64_t const u64EndSchedHalt = RTTimeNanoTS();
|
---|
859 | uint64_t const cNsElapsedSchedHalt = u64EndSchedHalt - u64StartSchedHalt;
|
---|
860 | Log10(("vmmR0DoHalt: CPU%d: halted %llu ns\n", pGVCpu->idCpu, cNsElapsedSchedHalt));
|
---|
861 |
|
---|
862 | VMCPU_CMPXCHG_STATE(pGVCpu, VMCPUSTATE_STARTED, VMCPUSTATE_STARTED_HALTED);
|
---|
863 | STAM_REL_PROFILE_ADD_PERIOD(&pGVCpu->vmm.s.StatR0HaltBlock, cNsElapsedSchedHalt);
|
---|
864 | if ( rc == VINF_SUCCESS
|
---|
865 | || rc == VERR_INTERRUPTED)
|
---|
866 | {
|
---|
867 | /* Keep some stats like ring-3 does. */
|
---|
868 | int64_t const cNsOverslept = u64EndSchedHalt - u64GipTime;
|
---|
869 | if (cNsOverslept > 50000)
|
---|
870 | STAM_REL_PROFILE_ADD_PERIOD(&pGVCpu->vmm.s.StatR0HaltBlockOverslept, cNsOverslept);
|
---|
871 | else if (cNsOverslept < -50000)
|
---|
872 | STAM_REL_PROFILE_ADD_PERIOD(&pGVCpu->vmm.s.StatR0HaltBlockInsomnia, cNsElapsedSchedHalt);
|
---|
873 | else
|
---|
874 | STAM_REL_PROFILE_ADD_PERIOD(&pGVCpu->vmm.s.StatR0HaltBlockOnTime, cNsElapsedSchedHalt);
|
---|
875 |
|
---|
876 | /*
|
---|
877 | * Recheck whether we can resume execution or have to go to ring-3.
|
---|
878 | */
|
---|
879 | if ( !VM_FF_IS_ANY_SET(pGVM, fVmFFs)
|
---|
880 | && !VMCPU_FF_IS_ANY_SET(pGVCpu, fCpuFFs))
|
---|
881 | {
|
---|
882 | if (VMCPU_FF_TEST_AND_CLEAR(pGVCpu, VMCPU_FF_UPDATE_APIC))
|
---|
883 | APICUpdatePendingInterrupts(pGVCpu);
|
---|
884 | if (VMCPU_FF_IS_ANY_SET(pGVCpu, fIntMask))
|
---|
885 | {
|
---|
886 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltExecFromBlock);
|
---|
887 | return vmmR0DoHaltInterrupt(pGVCpu, uMWait, enmInterruptibility);
|
---|
888 | }
|
---|
889 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3PostNoInt);
|
---|
890 | Log12(("vmmR0DoHalt: CPU%d post #2 - No pending interrupt\n", pGVCpu->idCpu));
|
---|
891 | }
|
---|
892 | else
|
---|
893 | {
|
---|
894 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3PostPendingFF);
|
---|
895 | Log12(("vmmR0DoHalt: CPU%d post #1 - Pending FF\n", pGVCpu->idCpu));
|
---|
896 | }
|
---|
897 | }
|
---|
898 | else
|
---|
899 | {
|
---|
900 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3Other);
|
---|
901 | Log12(("vmmR0DoHalt: CPU%d GVMMR0SchedHalt failed: %Rrc\n", pGVCpu->idCpu, rc));
|
---|
902 | }
|
---|
903 | }
|
---|
904 | else
|
---|
905 | {
|
---|
906 | VMCPU_CMPXCHG_STATE(pGVCpu, VMCPUSTATE_STARTED, VMCPUSTATE_STARTED_HALTED);
|
---|
907 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3PendingFF);
|
---|
908 | Log12(("vmmR0DoHalt: CPU%d failed #5 - Pending FF\n", pGVCpu->idCpu));
|
---|
909 | }
|
---|
910 | }
|
---|
911 | else
|
---|
912 | {
|
---|
913 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3Other);
|
---|
914 | Log12(("vmmR0DoHalt: CPU%d failed #4 - enmState=%d\n", pGVCpu->idCpu, VMCPU_GET_STATE(pGVCpu)));
|
---|
915 | }
|
---|
916 | }
|
---|
917 | else
|
---|
918 | {
|
---|
919 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3SmallDelta);
|
---|
920 | Log12(("vmmR0DoHalt: CPU%d failed #3 - delta too small: %RU64\n", pGVCpu->idCpu, u64Delta));
|
---|
921 | }
|
---|
922 | }
|
---|
923 | else
|
---|
924 | {
|
---|
925 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3PendingFF);
|
---|
926 | Log12(("vmmR0DoHalt: CPU%d failed #2 - Pending FF\n", pGVCpu->idCpu));
|
---|
927 | }
|
---|
928 | }
|
---|
929 | else
|
---|
930 | {
|
---|
931 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3PendingFF);
|
---|
932 | Log12(("vmmR0DoHalt: CPU%d failed #1 - Pending FF\n", pGVCpu->idCpu));
|
---|
933 | }
|
---|
934 | }
|
---|
935 | else
|
---|
936 | {
|
---|
937 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3Other);
|
---|
938 | Log12(("vmmR0DoHalt: CPU%d failed #0 - fMayHaltInRing0=%d TRPMHasTrap=%d enmInt=%d uMWait=%u\n",
|
---|
939 | pGVCpu->idCpu, pGVCpu->vmm.s.fMayHaltInRing0, TRPMHasTrap(pGVCpu), enmInterruptibility, uMWait));
|
---|
940 | }
|
---|
941 |
|
---|
942 | STAM_REL_COUNTER_INC(&pGVCpu->vmm.s.StatR0HaltToR3);
|
---|
943 | return VINF_EM_HALT;
|
---|
944 | }
|
---|
945 |
|
---|
946 |
|
---|
947 | /**
|
---|
948 | * VMM ring-0 thread-context callback.
|
---|
949 | *
|
---|
950 | * This does common HM state updating and calls the HM-specific thread-context
|
---|
951 | * callback.
|
---|
952 | *
|
---|
953 | * This is used together with RTThreadCtxHookCreate() on platforms which
|
---|
954 | * supports it, and directly from VMMR0EmtPrepareForBlocking() and
|
---|
955 | * VMMR0EmtResumeAfterBlocking() on platforms which don't.
|
---|
956 | *
|
---|
957 | * @param enmEvent The thread-context event.
|
---|
958 | * @param pvUser Opaque pointer to the VMCPU.
|
---|
959 | *
|
---|
960 | * @thread EMT(pvUser)
|
---|
961 | */
|
---|
962 | static DECLCALLBACK(void) vmmR0ThreadCtxCallback(RTTHREADCTXEVENT enmEvent, void *pvUser)
|
---|
963 | {
|
---|
964 | PVMCPUCC pVCpu = (PVMCPUCC)pvUser;
|
---|
965 |
|
---|
966 | switch (enmEvent)
|
---|
967 | {
|
---|
968 | case RTTHREADCTXEVENT_IN:
|
---|
969 | {
|
---|
970 | /*
|
---|
971 | * Linux may call us with preemption enabled (really!) but technically we
|
---|
972 | * cannot get preempted here, otherwise we end up in an infinite recursion
|
---|
973 | * scenario (i.e. preempted in resume hook -> preempt hook -> resume hook...
|
---|
974 | * ad infinitum). Let's just disable preemption for now...
|
---|
975 | */
|
---|
976 | /** @todo r=bird: I don't believe the above. The linux code is clearly enabling
|
---|
977 | * preemption after doing the callout (one or two functions up the
|
---|
978 | * call chain). */
|
---|
979 | /** @todo r=ramshankar: See @bugref{5313#c30}. */
|
---|
980 | RTTHREADPREEMPTSTATE ParanoidPreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
|
---|
981 | RTThreadPreemptDisable(&ParanoidPreemptState);
|
---|
982 |
|
---|
983 | /* We need to update the VCPU <-> host CPU mapping. */
|
---|
984 | RTCPUID idHostCpu;
|
---|
985 | uint32_t iHostCpuSet = RTMpCurSetIndexAndId(&idHostCpu);
|
---|
986 | pVCpu->iHostCpuSet = iHostCpuSet;
|
---|
987 | ASMAtomicWriteU32(&pVCpu->idHostCpu, idHostCpu);
|
---|
988 |
|
---|
989 | /* In the very unlikely event that the GIP delta for the CPU we're
|
---|
990 | rescheduled needs calculating, try force a return to ring-3.
|
---|
991 | We unfortunately cannot do the measurements right here. */
|
---|
992 | if (RT_LIKELY(!SUPIsTscDeltaAvailableForCpuSetIndex(iHostCpuSet)))
|
---|
993 | { /* likely */ }
|
---|
994 | else
|
---|
995 | VMCPU_FF_SET(pVCpu, VMCPU_FF_TO_R3);
|
---|
996 |
|
---|
997 | /* Invoke the HM-specific thread-context callback. */
|
---|
998 | HMR0ThreadCtxCallback(enmEvent, pvUser);
|
---|
999 |
|
---|
1000 | /* Restore preemption. */
|
---|
1001 | RTThreadPreemptRestore(&ParanoidPreemptState);
|
---|
1002 | break;
|
---|
1003 | }
|
---|
1004 |
|
---|
1005 | case RTTHREADCTXEVENT_OUT:
|
---|
1006 | {
|
---|
1007 | /* Invoke the HM-specific thread-context callback. */
|
---|
1008 | HMR0ThreadCtxCallback(enmEvent, pvUser);
|
---|
1009 |
|
---|
1010 | /*
|
---|
1011 | * Sigh. See VMMGetCpu() used by VMCPU_ASSERT_EMT(). We cannot let several VCPUs
|
---|
1012 | * have the same host CPU associated with it.
|
---|
1013 | */
|
---|
1014 | pVCpu->iHostCpuSet = UINT32_MAX;
|
---|
1015 | ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
|
---|
1016 | break;
|
---|
1017 | }
|
---|
1018 |
|
---|
1019 | default:
|
---|
1020 | /* Invoke the HM-specific thread-context callback. */
|
---|
1021 | HMR0ThreadCtxCallback(enmEvent, pvUser);
|
---|
1022 | break;
|
---|
1023 | }
|
---|
1024 | }
|
---|
1025 |
|
---|
1026 |
|
---|
1027 | /**
|
---|
1028 | * Creates thread switching hook for the current EMT thread.
|
---|
1029 | *
|
---|
1030 | * This is called by GVMMR0CreateVM and GVMMR0RegisterVCpu. If the host
|
---|
1031 | * platform does not implement switcher hooks, no hooks will be create and the
|
---|
1032 | * member set to NIL_RTTHREADCTXHOOK.
|
---|
1033 | *
|
---|
1034 | * @returns VBox status code.
|
---|
1035 | * @param pVCpu The cross context virtual CPU structure.
|
---|
1036 | * @thread EMT(pVCpu)
|
---|
1037 | */
|
---|
1038 | VMMR0_INT_DECL(int) VMMR0ThreadCtxHookCreateForEmt(PVMCPUCC pVCpu)
|
---|
1039 | {
|
---|
1040 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
1041 | Assert(pVCpu->vmmr0.s.hCtxHook == NIL_RTTHREADCTXHOOK);
|
---|
1042 |
|
---|
1043 | #if 1 /* To disable this stuff change to zero. */
|
---|
1044 | int rc = RTThreadCtxHookCreate(&pVCpu->vmmr0.s.hCtxHook, 0, vmmR0ThreadCtxCallback, pVCpu);
|
---|
1045 | if (RT_SUCCESS(rc))
|
---|
1046 | {
|
---|
1047 | pVCpu->pGVM->vmm.s.fIsUsingContextHooks = true;
|
---|
1048 | return rc;
|
---|
1049 | }
|
---|
1050 | #else
|
---|
1051 | RT_NOREF(vmmR0ThreadCtxCallback);
|
---|
1052 | int rc = VERR_NOT_SUPPORTED;
|
---|
1053 | #endif
|
---|
1054 |
|
---|
1055 | pVCpu->vmmr0.s.hCtxHook = NIL_RTTHREADCTXHOOK;
|
---|
1056 | pVCpu->pGVM->vmm.s.fIsUsingContextHooks = false;
|
---|
1057 | if (rc == VERR_NOT_SUPPORTED)
|
---|
1058 | return VINF_SUCCESS;
|
---|
1059 |
|
---|
1060 | LogRelMax(32, ("RTThreadCtxHookCreate failed! rc=%Rrc pVCpu=%p idCpu=%RU32\n", rc, pVCpu, pVCpu->idCpu));
|
---|
1061 | return VINF_SUCCESS; /* Just ignore it, we can live without context hooks. */
|
---|
1062 | }
|
---|
1063 |
|
---|
1064 |
|
---|
1065 | /**
|
---|
1066 | * Destroys the thread switching hook for the specified VCPU.
|
---|
1067 | *
|
---|
1068 | * @param pVCpu The cross context virtual CPU structure.
|
---|
1069 | * @remarks Can be called from any thread.
|
---|
1070 | */
|
---|
1071 | VMMR0_INT_DECL(void) VMMR0ThreadCtxHookDestroyForEmt(PVMCPUCC pVCpu)
|
---|
1072 | {
|
---|
1073 | int rc = RTThreadCtxHookDestroy(pVCpu->vmmr0.s.hCtxHook);
|
---|
1074 | AssertRC(rc);
|
---|
1075 | pVCpu->vmmr0.s.hCtxHook = NIL_RTTHREADCTXHOOK;
|
---|
1076 | }
|
---|
1077 |
|
---|
1078 |
|
---|
1079 | /**
|
---|
1080 | * Disables the thread switching hook for this VCPU (if we got one).
|
---|
1081 | *
|
---|
1082 | * @param pVCpu The cross context virtual CPU structure.
|
---|
1083 | * @thread EMT(pVCpu)
|
---|
1084 | *
|
---|
1085 | * @remarks This also clears GVMCPU::idHostCpu, so the mapping is invalid after
|
---|
1086 | * this call. This means you have to be careful with what you do!
|
---|
1087 | */
|
---|
1088 | VMMR0_INT_DECL(void) VMMR0ThreadCtxHookDisable(PVMCPUCC pVCpu)
|
---|
1089 | {
|
---|
1090 | /*
|
---|
1091 | * Clear the VCPU <-> host CPU mapping as we've left HM context.
|
---|
1092 | * @bugref{7726#c19} explains the need for this trick:
|
---|
1093 | *
|
---|
1094 | * VMXR0CallRing3Callback/SVMR0CallRing3Callback &
|
---|
1095 | * hmR0VmxLeaveSession/hmR0SvmLeaveSession disables context hooks during
|
---|
1096 | * longjmp & normal return to ring-3, which opens a window where we may be
|
---|
1097 | * rescheduled without changing GVMCPUID::idHostCpu and cause confusion if
|
---|
1098 | * the CPU starts executing a different EMT. Both functions first disables
|
---|
1099 | * preemption and then calls HMR0LeaveCpu which invalids idHostCpu, leaving
|
---|
1100 | * an opening for getting preempted.
|
---|
1101 | */
|
---|
1102 | /** @todo Make HM not need this API! Then we could leave the hooks enabled
|
---|
1103 | * all the time. */
|
---|
1104 |
|
---|
1105 | /*
|
---|
1106 | * Disable the context hook, if we got one.
|
---|
1107 | */
|
---|
1108 | if (pVCpu->vmmr0.s.hCtxHook != NIL_RTTHREADCTXHOOK)
|
---|
1109 | {
|
---|
1110 | Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
|
---|
1111 | ASMAtomicWriteU32(&pVCpu->idHostCpu, NIL_RTCPUID);
|
---|
1112 | int rc = RTThreadCtxHookDisable(pVCpu->vmmr0.s.hCtxHook);
|
---|
1113 | AssertRC(rc);
|
---|
1114 | }
|
---|
1115 | }
|
---|
1116 |
|
---|
1117 |
|
---|
1118 | /**
|
---|
1119 | * Internal version of VMMR0ThreadCtxHooksAreRegistered.
|
---|
1120 | *
|
---|
1121 | * @returns true if registered, false otherwise.
|
---|
1122 | * @param pVCpu The cross context virtual CPU structure.
|
---|
1123 | */
|
---|
1124 | DECLINLINE(bool) vmmR0ThreadCtxHookIsEnabled(PVMCPUCC pVCpu)
|
---|
1125 | {
|
---|
1126 | return RTThreadCtxHookIsEnabled(pVCpu->vmmr0.s.hCtxHook);
|
---|
1127 | }
|
---|
1128 |
|
---|
1129 |
|
---|
1130 | /**
|
---|
1131 | * Whether thread-context hooks are registered for this VCPU.
|
---|
1132 | *
|
---|
1133 | * @returns true if registered, false otherwise.
|
---|
1134 | * @param pVCpu The cross context virtual CPU structure.
|
---|
1135 | */
|
---|
1136 | VMMR0_INT_DECL(bool) VMMR0ThreadCtxHookIsEnabled(PVMCPUCC pVCpu)
|
---|
1137 | {
|
---|
1138 | return vmmR0ThreadCtxHookIsEnabled(pVCpu);
|
---|
1139 | }
|
---|
1140 |
|
---|
1141 |
|
---|
1142 | /**
|
---|
1143 | * Returns the ring-0 release logger instance.
|
---|
1144 | *
|
---|
1145 | * @returns Pointer to release logger, NULL if not configured.
|
---|
1146 | * @param pVCpu The cross context virtual CPU structure of the caller.
|
---|
1147 | * @thread EMT(pVCpu)
|
---|
1148 | */
|
---|
1149 | VMMR0_INT_DECL(PRTLOGGER) VMMR0GetReleaseLogger(PVMCPUCC pVCpu)
|
---|
1150 | {
|
---|
1151 | return pVCpu->vmmr0.s.u.s.RelLogger.pLogger;
|
---|
1152 | }
|
---|
1153 |
|
---|
1154 |
|
---|
1155 | #ifdef VBOX_WITH_STATISTICS
|
---|
1156 | /**
|
---|
1157 | * Record return code statistics
|
---|
1158 | * @param pVM The cross context VM structure.
|
---|
1159 | * @param pVCpu The cross context virtual CPU structure.
|
---|
1160 | * @param rc The status code.
|
---|
1161 | */
|
---|
1162 | static void vmmR0RecordRC(PVMCC pVM, PVMCPUCC pVCpu, int rc)
|
---|
1163 | {
|
---|
1164 | /*
|
---|
1165 | * Collect statistics.
|
---|
1166 | */
|
---|
1167 | switch (rc)
|
---|
1168 | {
|
---|
1169 | case VINF_SUCCESS:
|
---|
1170 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetNormal);
|
---|
1171 | break;
|
---|
1172 | case VINF_EM_RAW_INTERRUPT:
|
---|
1173 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterrupt);
|
---|
1174 | break;
|
---|
1175 | case VINF_EM_RAW_INTERRUPT_HYPER:
|
---|
1176 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptHyper);
|
---|
1177 | break;
|
---|
1178 | case VINF_EM_RAW_GUEST_TRAP:
|
---|
1179 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGuestTrap);
|
---|
1180 | break;
|
---|
1181 | case VINF_EM_RAW_RING_SWITCH:
|
---|
1182 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitch);
|
---|
1183 | break;
|
---|
1184 | case VINF_EM_RAW_RING_SWITCH_INT:
|
---|
1185 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRingSwitchInt);
|
---|
1186 | break;
|
---|
1187 | case VINF_EM_RAW_STALE_SELECTOR:
|
---|
1188 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetStaleSelector);
|
---|
1189 | break;
|
---|
1190 | case VINF_EM_RAW_IRET_TRAP:
|
---|
1191 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIRETTrap);
|
---|
1192 | break;
|
---|
1193 | case VINF_IOM_R3_IOPORT_READ:
|
---|
1194 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIORead);
|
---|
1195 | break;
|
---|
1196 | case VINF_IOM_R3_IOPORT_WRITE:
|
---|
1197 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOWrite);
|
---|
1198 | break;
|
---|
1199 | case VINF_IOM_R3_IOPORT_COMMIT_WRITE:
|
---|
1200 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIOCommitWrite);
|
---|
1201 | break;
|
---|
1202 | case VINF_IOM_R3_MMIO_READ:
|
---|
1203 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIORead);
|
---|
1204 | break;
|
---|
1205 | case VINF_IOM_R3_MMIO_WRITE:
|
---|
1206 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOWrite);
|
---|
1207 | break;
|
---|
1208 | case VINF_IOM_R3_MMIO_COMMIT_WRITE:
|
---|
1209 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOCommitWrite);
|
---|
1210 | break;
|
---|
1211 | case VINF_IOM_R3_MMIO_READ_WRITE:
|
---|
1212 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOReadWrite);
|
---|
1213 | break;
|
---|
1214 | case VINF_PATM_HC_MMIO_PATCH_READ:
|
---|
1215 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchRead);
|
---|
1216 | break;
|
---|
1217 | case VINF_PATM_HC_MMIO_PATCH_WRITE:
|
---|
1218 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMMIOPatchWrite);
|
---|
1219 | break;
|
---|
1220 | case VINF_CPUM_R3_MSR_READ:
|
---|
1221 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMSRRead);
|
---|
1222 | break;
|
---|
1223 | case VINF_CPUM_R3_MSR_WRITE:
|
---|
1224 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMSRWrite);
|
---|
1225 | break;
|
---|
1226 | case VINF_EM_RAW_EMULATE_INSTR:
|
---|
1227 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetEmulate);
|
---|
1228 | break;
|
---|
1229 | case VINF_PATCH_EMULATE_INSTR:
|
---|
1230 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchEmulate);
|
---|
1231 | break;
|
---|
1232 | case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
|
---|
1233 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetLDTFault);
|
---|
1234 | break;
|
---|
1235 | case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
|
---|
1236 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetGDTFault);
|
---|
1237 | break;
|
---|
1238 | case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
|
---|
1239 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetIDTFault);
|
---|
1240 | break;
|
---|
1241 | case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
|
---|
1242 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTSSFault);
|
---|
1243 | break;
|
---|
1244 | case VINF_CSAM_PENDING_ACTION:
|
---|
1245 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetCSAMTask);
|
---|
1246 | break;
|
---|
1247 | case VINF_PGM_SYNC_CR3:
|
---|
1248 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetSyncCR3);
|
---|
1249 | break;
|
---|
1250 | case VINF_PATM_PATCH_INT3:
|
---|
1251 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchInt3);
|
---|
1252 | break;
|
---|
1253 | case VINF_PATM_PATCH_TRAP_PF:
|
---|
1254 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchPF);
|
---|
1255 | break;
|
---|
1256 | case VINF_PATM_PATCH_TRAP_GP:
|
---|
1257 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchGP);
|
---|
1258 | break;
|
---|
1259 | case VINF_PATM_PENDING_IRQ_AFTER_IRET:
|
---|
1260 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchIretIRQ);
|
---|
1261 | break;
|
---|
1262 | case VINF_EM_RESCHEDULE_REM:
|
---|
1263 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetRescheduleREM);
|
---|
1264 | break;
|
---|
1265 | case VINF_EM_RAW_TO_R3:
|
---|
1266 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Total);
|
---|
1267 | if (VM_FF_IS_SET(pVM, VM_FF_TM_VIRTUAL_SYNC))
|
---|
1268 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3TMVirt);
|
---|
1269 | else if (VM_FF_IS_SET(pVM, VM_FF_PGM_NEED_HANDY_PAGES))
|
---|
1270 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3HandyPages);
|
---|
1271 | else if (VM_FF_IS_SET(pVM, VM_FF_PDM_QUEUES))
|
---|
1272 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3PDMQueues);
|
---|
1273 | else if (VM_FF_IS_SET(pVM, VM_FF_EMT_RENDEZVOUS))
|
---|
1274 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Rendezvous);
|
---|
1275 | else if (VM_FF_IS_SET(pVM, VM_FF_PDM_DMA))
|
---|
1276 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3DMA);
|
---|
1277 | else if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_TIMER))
|
---|
1278 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Timer);
|
---|
1279 | else if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_PDM_CRITSECT))
|
---|
1280 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3CritSect);
|
---|
1281 | else if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_TO_R3))
|
---|
1282 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3FF);
|
---|
1283 | else if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_IEM))
|
---|
1284 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Iem);
|
---|
1285 | else if (VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_IOM))
|
---|
1286 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Iom);
|
---|
1287 | else
|
---|
1288 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetToR3Unknown);
|
---|
1289 | break;
|
---|
1290 |
|
---|
1291 | case VINF_EM_RAW_TIMER_PENDING:
|
---|
1292 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetTimerPending);
|
---|
1293 | break;
|
---|
1294 | case VINF_EM_RAW_INTERRUPT_PENDING:
|
---|
1295 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetInterruptPending);
|
---|
1296 | break;
|
---|
1297 | case VINF_PATM_DUPLICATE_FUNCTION:
|
---|
1298 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPATMDuplicateFn);
|
---|
1299 | break;
|
---|
1300 | case VINF_PGM_POOL_FLUSH_PENDING:
|
---|
1301 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPGMFlushPending);
|
---|
1302 | break;
|
---|
1303 | case VINF_EM_PENDING_REQUEST:
|
---|
1304 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPendingRequest);
|
---|
1305 | break;
|
---|
1306 | case VINF_EM_HM_PATCH_TPR_INSTR:
|
---|
1307 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetPatchTPR);
|
---|
1308 | break;
|
---|
1309 | default:
|
---|
1310 | STAM_COUNTER_INC(&pVM->vmm.s.StatRZRetMisc);
|
---|
1311 | break;
|
---|
1312 | }
|
---|
1313 | }
|
---|
1314 | #endif /* VBOX_WITH_STATISTICS */
|
---|
1315 |
|
---|
1316 |
|
---|
1317 | /**
|
---|
1318 | * The Ring 0 entry point, called by the fast-ioctl path.
|
---|
1319 | *
|
---|
1320 | * @param pGVM The global (ring-0) VM structure.
|
---|
1321 | * @param pVMIgnored The cross context VM structure. The return code is
|
---|
1322 | * stored in pVM->vmm.s.iLastGZRc.
|
---|
1323 | * @param idCpu The Virtual CPU ID of the calling EMT.
|
---|
1324 | * @param enmOperation Which operation to execute.
|
---|
1325 | * @remarks Assume called with interrupts _enabled_.
|
---|
1326 | */
|
---|
1327 | VMMR0DECL(void) VMMR0EntryFast(PGVM pGVM, PVMCC pVMIgnored, VMCPUID idCpu, VMMR0OPERATION enmOperation)
|
---|
1328 | {
|
---|
1329 | RT_NOREF(pVMIgnored);
|
---|
1330 |
|
---|
1331 | /*
|
---|
1332 | * Validation.
|
---|
1333 | */
|
---|
1334 | if ( idCpu < pGVM->cCpus
|
---|
1335 | && pGVM->cCpus == pGVM->cCpusUnsafe)
|
---|
1336 | { /*likely*/ }
|
---|
1337 | else
|
---|
1338 | {
|
---|
1339 | SUPR0Printf("VMMR0EntryFast: Bad idCpu=%#x cCpus=%#x cCpusUnsafe=%#x\n", idCpu, pGVM->cCpus, pGVM->cCpusUnsafe);
|
---|
1340 | return;
|
---|
1341 | }
|
---|
1342 |
|
---|
1343 | PGVMCPU pGVCpu = &pGVM->aCpus[idCpu];
|
---|
1344 | RTNATIVETHREAD const hNativeThread = RTThreadNativeSelf();
|
---|
1345 | if (RT_LIKELY( pGVCpu->hEMT == hNativeThread
|
---|
1346 | && pGVCpu->hNativeThreadR0 == hNativeThread))
|
---|
1347 | { /* likely */ }
|
---|
1348 | else
|
---|
1349 | {
|
---|
1350 | SUPR0Printf("VMMR0EntryFast: Bad thread idCpu=%#x hNativeSelf=%p pGVCpu->hEmt=%p pGVCpu->hNativeThreadR0=%p\n",
|
---|
1351 | idCpu, hNativeThread, pGVCpu->hEMT, pGVCpu->hNativeThreadR0);
|
---|
1352 | return;
|
---|
1353 | }
|
---|
1354 |
|
---|
1355 | /*
|
---|
1356 | * Perform requested operation.
|
---|
1357 | */
|
---|
1358 | switch (enmOperation)
|
---|
1359 | {
|
---|
1360 | /*
|
---|
1361 | * Run guest code using the available hardware acceleration technology.
|
---|
1362 | */
|
---|
1363 | case VMMR0_DO_HM_RUN:
|
---|
1364 | {
|
---|
1365 | for (;;) /* hlt loop */
|
---|
1366 | {
|
---|
1367 | /*
|
---|
1368 | * Disable ring-3 calls & blocking till we've successfully entered HM.
|
---|
1369 | * Otherwise we sometimes end up blocking at the finall Log4 statement
|
---|
1370 | * in VMXR0Enter, while still in a somewhat inbetween state.
|
---|
1371 | */
|
---|
1372 | VMMRZCallRing3Disable(pGVCpu);
|
---|
1373 |
|
---|
1374 | /*
|
---|
1375 | * Disable preemption.
|
---|
1376 | */
|
---|
1377 | Assert(!vmmR0ThreadCtxHookIsEnabled(pGVCpu));
|
---|
1378 | RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
|
---|
1379 | RTThreadPreemptDisable(&PreemptState);
|
---|
1380 | pGVCpu->vmmr0.s.pPreemptState = &PreemptState;
|
---|
1381 |
|
---|
1382 | /*
|
---|
1383 | * Get the host CPU identifiers, make sure they are valid and that
|
---|
1384 | * we've got a TSC delta for the CPU.
|
---|
1385 | */
|
---|
1386 | RTCPUID idHostCpu;
|
---|
1387 | uint32_t iHostCpuSet = RTMpCurSetIndexAndId(&idHostCpu);
|
---|
1388 | if (RT_LIKELY( iHostCpuSet < RTCPUSET_MAX_CPUS
|
---|
1389 | && SUPIsTscDeltaAvailableForCpuSetIndex(iHostCpuSet)))
|
---|
1390 | {
|
---|
1391 | pGVCpu->iHostCpuSet = iHostCpuSet;
|
---|
1392 | ASMAtomicWriteU32(&pGVCpu->idHostCpu, idHostCpu);
|
---|
1393 |
|
---|
1394 | /*
|
---|
1395 | * Update the periodic preemption timer if it's active.
|
---|
1396 | */
|
---|
1397 | if (pGVM->vmm.s.fUsePeriodicPreemptionTimers)
|
---|
1398 | GVMMR0SchedUpdatePeriodicPreemptionTimer(pGVM, pGVCpu->idHostCpu, TMCalcHostTimerFrequency(pGVM, pGVCpu));
|
---|
1399 |
|
---|
1400 | #ifdef VMM_R0_TOUCH_FPU
|
---|
1401 | /*
|
---|
1402 | * Make sure we've got the FPU state loaded so and we don't need to clear
|
---|
1403 | * CR0.TS and get out of sync with the host kernel when loading the guest
|
---|
1404 | * FPU state. @ref sec_cpum_fpu (CPUM.cpp) and @bugref{4053}.
|
---|
1405 | */
|
---|
1406 | CPUMR0TouchHostFpu();
|
---|
1407 | #endif
|
---|
1408 | int rc;
|
---|
1409 | bool fPreemptRestored = false;
|
---|
1410 | if (!HMR0SuspendPending())
|
---|
1411 | {
|
---|
1412 | /*
|
---|
1413 | * Enable the context switching hook.
|
---|
1414 | */
|
---|
1415 | if (pGVCpu->vmmr0.s.hCtxHook != NIL_RTTHREADCTXHOOK)
|
---|
1416 | {
|
---|
1417 | Assert(!RTThreadCtxHookIsEnabled(pGVCpu->vmmr0.s.hCtxHook));
|
---|
1418 | int rc2 = RTThreadCtxHookEnable(pGVCpu->vmmr0.s.hCtxHook); AssertRC(rc2);
|
---|
1419 | }
|
---|
1420 |
|
---|
1421 | /*
|
---|
1422 | * Enter HM context.
|
---|
1423 | */
|
---|
1424 | rc = HMR0Enter(pGVCpu);
|
---|
1425 | if (RT_SUCCESS(rc))
|
---|
1426 | {
|
---|
1427 | VMCPU_SET_STATE(pGVCpu, VMCPUSTATE_STARTED_HM);
|
---|
1428 |
|
---|
1429 | /*
|
---|
1430 | * When preemption hooks are in place, enable preemption now that
|
---|
1431 | * we're in HM context.
|
---|
1432 | */
|
---|
1433 | if (vmmR0ThreadCtxHookIsEnabled(pGVCpu))
|
---|
1434 | {
|
---|
1435 | fPreemptRestored = true;
|
---|
1436 | pGVCpu->vmmr0.s.pPreemptState = NULL;
|
---|
1437 | RTThreadPreemptRestore(&PreemptState);
|
---|
1438 | }
|
---|
1439 | VMMRZCallRing3Enable(pGVCpu);
|
---|
1440 |
|
---|
1441 | /*
|
---|
1442 | * Setup the longjmp machinery and execute guest code (calls HMR0RunGuestCode).
|
---|
1443 | */
|
---|
1444 | rc = vmmR0CallRing3SetJmp(&pGVCpu->vmmr0.s.AssertJmpBuf, HMR0RunGuestCode, pGVM, pGVCpu);
|
---|
1445 |
|
---|
1446 | /*
|
---|
1447 | * Assert sanity on the way out. Using manual assertions code here as normal
|
---|
1448 | * assertions are going to panic the host since we're outside the setjmp/longjmp zone.
|
---|
1449 | */
|
---|
1450 | if (RT_UNLIKELY( VMCPU_GET_STATE(pGVCpu) != VMCPUSTATE_STARTED_HM
|
---|
1451 | && RT_SUCCESS_NP(rc)
|
---|
1452 | && rc != VERR_VMM_RING0_ASSERTION ))
|
---|
1453 | {
|
---|
1454 | pGVM->vmm.s.szRing0AssertMsg1[0] = '\0';
|
---|
1455 | RTStrPrintf(pGVM->vmm.s.szRing0AssertMsg2, sizeof(pGVM->vmm.s.szRing0AssertMsg2),
|
---|
1456 | "Got VMCPU state %d expected %d.\n", VMCPU_GET_STATE(pGVCpu), VMCPUSTATE_STARTED_HM);
|
---|
1457 | rc = VERR_VMM_WRONG_HM_VMCPU_STATE;
|
---|
1458 | }
|
---|
1459 | #if 0
|
---|
1460 | /** @todo Get rid of this. HM shouldn't disable the context hook. */
|
---|
1461 | else if (RT_UNLIKELY(vmmR0ThreadCtxHookIsEnabled(pGVCpu)))
|
---|
1462 | {
|
---|
1463 | pGVM->vmm.s.szRing0AssertMsg1[0] = '\0';
|
---|
1464 | RTStrPrintf(pGVM->vmm.s.szRing0AssertMsg2, sizeof(pGVM->vmm.s.szRing0AssertMsg2),
|
---|
1465 | "Thread-context hooks still enabled! VCPU=%p Id=%u rc=%d.\n", pGVCpu, pGVCpu->idCpu, rc);
|
---|
1466 | rc = VERR_VMM_CONTEXT_HOOK_STILL_ENABLED;
|
---|
1467 | }
|
---|
1468 | #endif
|
---|
1469 |
|
---|
1470 | VMMRZCallRing3Disable(pGVCpu); /* Lazy bird: Simpler just disabling it again... */
|
---|
1471 | VMCPU_SET_STATE(pGVCpu, VMCPUSTATE_STARTED);
|
---|
1472 | }
|
---|
1473 | STAM_COUNTER_INC(&pGVM->vmm.s.StatRunGC);
|
---|
1474 |
|
---|
1475 | /*
|
---|
1476 | * Invalidate the host CPU identifiers before we disable the context
|
---|
1477 | * hook / restore preemption.
|
---|
1478 | */
|
---|
1479 | pGVCpu->iHostCpuSet = UINT32_MAX;
|
---|
1480 | ASMAtomicWriteU32(&pGVCpu->idHostCpu, NIL_RTCPUID);
|
---|
1481 |
|
---|
1482 | /*
|
---|
1483 | * Disable context hooks. Due to unresolved cleanup issues, we
|
---|
1484 | * cannot leave the hooks enabled when we return to ring-3.
|
---|
1485 | *
|
---|
1486 | * Note! At the moment HM may also have disabled the hook
|
---|
1487 | * when we get here, but the IPRT API handles that.
|
---|
1488 | */
|
---|
1489 | if (pGVCpu->vmmr0.s.hCtxHook != NIL_RTTHREADCTXHOOK)
|
---|
1490 | RTThreadCtxHookDisable(pGVCpu->vmmr0.s.hCtxHook);
|
---|
1491 | }
|
---|
1492 | /*
|
---|
1493 | * The system is about to go into suspend mode; go back to ring 3.
|
---|
1494 | */
|
---|
1495 | else
|
---|
1496 | {
|
---|
1497 | pGVCpu->iHostCpuSet = UINT32_MAX;
|
---|
1498 | ASMAtomicWriteU32(&pGVCpu->idHostCpu, NIL_RTCPUID);
|
---|
1499 | rc = VINF_EM_RAW_INTERRUPT;
|
---|
1500 | }
|
---|
1501 |
|
---|
1502 | /** @todo When HM stops messing with the context hook state, we'll disable
|
---|
1503 | * preemption again before the RTThreadCtxHookDisable call. */
|
---|
1504 | if (!fPreemptRestored)
|
---|
1505 | {
|
---|
1506 | pGVCpu->vmmr0.s.pPreemptState = NULL;
|
---|
1507 | RTThreadPreemptRestore(&PreemptState);
|
---|
1508 | }
|
---|
1509 |
|
---|
1510 | pGVCpu->vmm.s.iLastGZRc = rc;
|
---|
1511 |
|
---|
1512 | /* Fire dtrace probe and collect statistics. */
|
---|
1513 | VBOXVMM_R0_VMM_RETURN_TO_RING3_HM(pGVCpu, CPUMQueryGuestCtxPtr(pGVCpu), rc);
|
---|
1514 | #ifdef VBOX_WITH_STATISTICS
|
---|
1515 | vmmR0RecordRC(pGVM, pGVCpu, rc);
|
---|
1516 | #endif
|
---|
1517 | VMMRZCallRing3Enable(pGVCpu);
|
---|
1518 |
|
---|
1519 | /*
|
---|
1520 | * If this is a halt.
|
---|
1521 | */
|
---|
1522 | if (rc != VINF_EM_HALT)
|
---|
1523 | { /* we're not in a hurry for a HLT, so prefer this path */ }
|
---|
1524 | else
|
---|
1525 | {
|
---|
1526 | pGVCpu->vmm.s.iLastGZRc = rc = vmmR0DoHalt(pGVM, pGVCpu);
|
---|
1527 | if (rc == VINF_SUCCESS)
|
---|
1528 | {
|
---|
1529 | pGVCpu->vmm.s.cR0HaltsSucceeded++;
|
---|
1530 | continue;
|
---|
1531 | }
|
---|
1532 | pGVCpu->vmm.s.cR0HaltsToRing3++;
|
---|
1533 | }
|
---|
1534 | }
|
---|
1535 | /*
|
---|
1536 | * Invalid CPU set index or TSC delta in need of measuring.
|
---|
1537 | */
|
---|
1538 | else
|
---|
1539 | {
|
---|
1540 | pGVCpu->vmmr0.s.pPreemptState = NULL;
|
---|
1541 | pGVCpu->iHostCpuSet = UINT32_MAX;
|
---|
1542 | ASMAtomicWriteU32(&pGVCpu->idHostCpu, NIL_RTCPUID);
|
---|
1543 | RTThreadPreemptRestore(&PreemptState);
|
---|
1544 |
|
---|
1545 | VMMRZCallRing3Enable(pGVCpu);
|
---|
1546 |
|
---|
1547 | if (iHostCpuSet < RTCPUSET_MAX_CPUS)
|
---|
1548 | {
|
---|
1549 | int rc = SUPR0TscDeltaMeasureBySetIndex(pGVM->pSession, iHostCpuSet, 0 /*fFlags*/,
|
---|
1550 | 2 /*cMsWaitRetry*/, 5*RT_MS_1SEC /*cMsWaitThread*/,
|
---|
1551 | 0 /*default cTries*/);
|
---|
1552 | if (RT_SUCCESS(rc) || rc == VERR_CPU_OFFLINE)
|
---|
1553 | pGVCpu->vmm.s.iLastGZRc = VINF_EM_RAW_TO_R3;
|
---|
1554 | else
|
---|
1555 | pGVCpu->vmm.s.iLastGZRc = rc;
|
---|
1556 | }
|
---|
1557 | else
|
---|
1558 | pGVCpu->vmm.s.iLastGZRc = VERR_INVALID_CPU_INDEX;
|
---|
1559 | }
|
---|
1560 | break;
|
---|
1561 | } /* halt loop. */
|
---|
1562 | break;
|
---|
1563 | }
|
---|
1564 |
|
---|
1565 | #ifdef VBOX_WITH_NEM_R0
|
---|
1566 | # if defined(RT_ARCH_AMD64) && defined(RT_OS_WINDOWS)
|
---|
1567 | case VMMR0_DO_NEM_RUN:
|
---|
1568 | {
|
---|
1569 | /*
|
---|
1570 | * Setup the longjmp machinery and execute guest code (calls NEMR0RunGuestCode).
|
---|
1571 | */
|
---|
1572 | # ifdef VBOXSTRICTRC_STRICT_ENABLED
|
---|
1573 | int rc = vmmR0CallRing3SetJmp2(&pGVCpu->vmmr0.s.AssertJmpBuf, (PFNVMMR0SETJMP2)NEMR0RunGuestCode, pGVM, idCpu);
|
---|
1574 | # else
|
---|
1575 | int rc = vmmR0CallRing3SetJmp2(&pGVCpu->vmmr0.s.AssertJmpBuf, NEMR0RunGuestCode, pGVM, idCpu);
|
---|
1576 | # endif
|
---|
1577 | STAM_COUNTER_INC(&pGVM->vmm.s.StatRunGC);
|
---|
1578 |
|
---|
1579 | pGVCpu->vmm.s.iLastGZRc = rc;
|
---|
1580 |
|
---|
1581 | /*
|
---|
1582 | * Fire dtrace probe and collect statistics.
|
---|
1583 | */
|
---|
1584 | VBOXVMM_R0_VMM_RETURN_TO_RING3_NEM(pGVCpu, CPUMQueryGuestCtxPtr(pGVCpu), rc);
|
---|
1585 | # ifdef VBOX_WITH_STATISTICS
|
---|
1586 | vmmR0RecordRC(pGVM, pGVCpu, rc);
|
---|
1587 | # endif
|
---|
1588 | break;
|
---|
1589 | }
|
---|
1590 | # endif
|
---|
1591 | #endif
|
---|
1592 |
|
---|
1593 | /*
|
---|
1594 | * For profiling.
|
---|
1595 | */
|
---|
1596 | case VMMR0_DO_NOP:
|
---|
1597 | pGVCpu->vmm.s.iLastGZRc = VINF_SUCCESS;
|
---|
1598 | break;
|
---|
1599 |
|
---|
1600 | /*
|
---|
1601 | * Shouldn't happen.
|
---|
1602 | */
|
---|
1603 | default:
|
---|
1604 | AssertMsgFailed(("%#x\n", enmOperation));
|
---|
1605 | pGVCpu->vmm.s.iLastGZRc = VERR_NOT_SUPPORTED;
|
---|
1606 | break;
|
---|
1607 | }
|
---|
1608 | }
|
---|
1609 |
|
---|
1610 |
|
---|
1611 | /**
|
---|
1612 | * Validates a session or VM session argument.
|
---|
1613 | *
|
---|
1614 | * @returns true / false accordingly.
|
---|
1615 | * @param pGVM The global (ring-0) VM structure.
|
---|
1616 | * @param pClaimedSession The session claim to validate.
|
---|
1617 | * @param pSession The session argument.
|
---|
1618 | */
|
---|
1619 | DECLINLINE(bool) vmmR0IsValidSession(PGVM pGVM, PSUPDRVSESSION pClaimedSession, PSUPDRVSESSION pSession)
|
---|
1620 | {
|
---|
1621 | /* This must be set! */
|
---|
1622 | if (!pSession)
|
---|
1623 | return false;
|
---|
1624 |
|
---|
1625 | /* Only one out of the two. */
|
---|
1626 | if (pGVM && pClaimedSession)
|
---|
1627 | return false;
|
---|
1628 | if (pGVM)
|
---|
1629 | pClaimedSession = pGVM->pSession;
|
---|
1630 | return pClaimedSession == pSession;
|
---|
1631 | }
|
---|
1632 |
|
---|
1633 |
|
---|
1634 | /**
|
---|
1635 | * VMMR0EntryEx worker function, either called directly or when ever possible
|
---|
1636 | * called thru a longjmp so we can exit safely on failure.
|
---|
1637 | *
|
---|
1638 | * @returns VBox status code.
|
---|
1639 | * @param pGVM The global (ring-0) VM structure.
|
---|
1640 | * @param idCpu Virtual CPU ID argument. Must be NIL_VMCPUID if pVM
|
---|
1641 | * is NIL_RTR0PTR, and may be NIL_VMCPUID if it isn't
|
---|
1642 | * @param enmOperation Which operation to execute.
|
---|
1643 | * @param pReqHdr This points to a SUPVMMR0REQHDR packet. Optional.
|
---|
1644 | * The support driver validates this if it's present.
|
---|
1645 | * @param u64Arg Some simple constant argument.
|
---|
1646 | * @param pSession The session of the caller.
|
---|
1647 | *
|
---|
1648 | * @remarks Assume called with interrupts _enabled_.
|
---|
1649 | */
|
---|
1650 | DECL_NO_INLINE(static, int) vmmR0EntryExWorker(PGVM pGVM, VMCPUID idCpu, VMMR0OPERATION enmOperation,
|
---|
1651 | PSUPVMMR0REQHDR pReqHdr, uint64_t u64Arg, PSUPDRVSESSION pSession)
|
---|
1652 | {
|
---|
1653 | /*
|
---|
1654 | * Validate pGVM and idCpu for consistency and validity.
|
---|
1655 | */
|
---|
1656 | if (pGVM != NULL)
|
---|
1657 | {
|
---|
1658 | if (RT_LIKELY(((uintptr_t)pGVM & PAGE_OFFSET_MASK) == 0))
|
---|
1659 | { /* likely */ }
|
---|
1660 | else
|
---|
1661 | {
|
---|
1662 | SUPR0Printf("vmmR0EntryExWorker: Invalid pGVM=%p! (op=%d)\n", pGVM, enmOperation);
|
---|
1663 | return VERR_INVALID_POINTER;
|
---|
1664 | }
|
---|
1665 |
|
---|
1666 | if (RT_LIKELY(idCpu == NIL_VMCPUID || idCpu < pGVM->cCpus))
|
---|
1667 | { /* likely */ }
|
---|
1668 | else
|
---|
1669 | {
|
---|
1670 | SUPR0Printf("vmmR0EntryExWorker: Invalid idCpu %#x (cCpus=%#x)\n", idCpu, pGVM->cCpus);
|
---|
1671 | return VERR_INVALID_PARAMETER;
|
---|
1672 | }
|
---|
1673 |
|
---|
1674 | if (RT_LIKELY( pGVM->enmVMState >= VMSTATE_CREATING
|
---|
1675 | && pGVM->enmVMState <= VMSTATE_TERMINATED
|
---|
1676 | && pGVM->pSession == pSession
|
---|
1677 | && pGVM->pSelf == pGVM))
|
---|
1678 | { /* likely */ }
|
---|
1679 | else
|
---|
1680 | {
|
---|
1681 | SUPR0Printf("vmmR0EntryExWorker: Invalid pGVM=%p:{.enmVMState=%d, .cCpus=%#x, .pSession=%p(==%p), .pSelf=%p(==%p)}! (op=%d)\n",
|
---|
1682 | pGVM, pGVM->enmVMState, pGVM->cCpus, pGVM->pSession, pSession, pGVM->pSelf, pGVM, enmOperation);
|
---|
1683 | return VERR_INVALID_POINTER;
|
---|
1684 | }
|
---|
1685 | }
|
---|
1686 | else if (RT_LIKELY(idCpu == NIL_VMCPUID))
|
---|
1687 | { /* likely */ }
|
---|
1688 | else
|
---|
1689 | {
|
---|
1690 | SUPR0Printf("vmmR0EntryExWorker: Invalid idCpu=%u\n", idCpu);
|
---|
1691 | return VERR_INVALID_PARAMETER;
|
---|
1692 | }
|
---|
1693 |
|
---|
1694 | /*
|
---|
1695 | * Process the request.
|
---|
1696 | */
|
---|
1697 | int rc;
|
---|
1698 | switch (enmOperation)
|
---|
1699 | {
|
---|
1700 | /*
|
---|
1701 | * GVM requests
|
---|
1702 | */
|
---|
1703 | case VMMR0_DO_GVMM_CREATE_VM:
|
---|
1704 | if (pGVM == NULL && u64Arg == 0 && idCpu == NIL_VMCPUID)
|
---|
1705 | rc = GVMMR0CreateVMReq((PGVMMCREATEVMREQ)pReqHdr, pSession);
|
---|
1706 | else
|
---|
1707 | rc = VERR_INVALID_PARAMETER;
|
---|
1708 | break;
|
---|
1709 |
|
---|
1710 | case VMMR0_DO_GVMM_DESTROY_VM:
|
---|
1711 | if (pReqHdr == NULL && u64Arg == 0)
|
---|
1712 | rc = GVMMR0DestroyVM(pGVM);
|
---|
1713 | else
|
---|
1714 | rc = VERR_INVALID_PARAMETER;
|
---|
1715 | break;
|
---|
1716 |
|
---|
1717 | case VMMR0_DO_GVMM_REGISTER_VMCPU:
|
---|
1718 | if (pGVM != NULL)
|
---|
1719 | rc = GVMMR0RegisterVCpu(pGVM, idCpu);
|
---|
1720 | else
|
---|
1721 | rc = VERR_INVALID_PARAMETER;
|
---|
1722 | break;
|
---|
1723 |
|
---|
1724 | case VMMR0_DO_GVMM_DEREGISTER_VMCPU:
|
---|
1725 | if (pGVM != NULL)
|
---|
1726 | rc = GVMMR0DeregisterVCpu(pGVM, idCpu);
|
---|
1727 | else
|
---|
1728 | rc = VERR_INVALID_PARAMETER;
|
---|
1729 | break;
|
---|
1730 |
|
---|
1731 | case VMMR0_DO_GVMM_REGISTER_WORKER_THREAD:
|
---|
1732 | if (pGVM != NULL && pReqHdr && pReqHdr->cbReq == sizeof(GVMMREGISTERWORKERTHREADREQ))
|
---|
1733 | rc = GVMMR0RegisterWorkerThread(pGVM, (GVMMWORKERTHREAD)(unsigned)u64Arg,
|
---|
1734 | ((PGVMMREGISTERWORKERTHREADREQ)(pReqHdr))->hNativeThreadR3);
|
---|
1735 | else
|
---|
1736 | rc = VERR_INVALID_PARAMETER;
|
---|
1737 | break;
|
---|
1738 |
|
---|
1739 | case VMMR0_DO_GVMM_DEREGISTER_WORKER_THREAD:
|
---|
1740 | if (pGVM != NULL)
|
---|
1741 | rc = GVMMR0DeregisterWorkerThread(pGVM, (GVMMWORKERTHREAD)(unsigned)u64Arg);
|
---|
1742 | else
|
---|
1743 | rc = VERR_INVALID_PARAMETER;
|
---|
1744 | break;
|
---|
1745 |
|
---|
1746 | case VMMR0_DO_GVMM_SCHED_HALT:
|
---|
1747 | if (pReqHdr)
|
---|
1748 | return VERR_INVALID_PARAMETER;
|
---|
1749 | rc = GVMMR0SchedHaltReq(pGVM, idCpu, u64Arg);
|
---|
1750 | break;
|
---|
1751 |
|
---|
1752 | case VMMR0_DO_GVMM_SCHED_WAKE_UP:
|
---|
1753 | if (pReqHdr || u64Arg)
|
---|
1754 | return VERR_INVALID_PARAMETER;
|
---|
1755 | rc = GVMMR0SchedWakeUp(pGVM, idCpu);
|
---|
1756 | break;
|
---|
1757 |
|
---|
1758 | case VMMR0_DO_GVMM_SCHED_POKE:
|
---|
1759 | if (pReqHdr || u64Arg)
|
---|
1760 | return VERR_INVALID_PARAMETER;
|
---|
1761 | rc = GVMMR0SchedPoke(pGVM, idCpu);
|
---|
1762 | break;
|
---|
1763 |
|
---|
1764 | case VMMR0_DO_GVMM_SCHED_WAKE_UP_AND_POKE_CPUS:
|
---|
1765 | if (u64Arg)
|
---|
1766 | return VERR_INVALID_PARAMETER;
|
---|
1767 | rc = GVMMR0SchedWakeUpAndPokeCpusReq(pGVM, (PGVMMSCHEDWAKEUPANDPOKECPUSREQ)pReqHdr);
|
---|
1768 | break;
|
---|
1769 |
|
---|
1770 | case VMMR0_DO_GVMM_SCHED_POLL:
|
---|
1771 | if (pReqHdr || u64Arg > 1)
|
---|
1772 | return VERR_INVALID_PARAMETER;
|
---|
1773 | rc = GVMMR0SchedPoll(pGVM, idCpu, !!u64Arg);
|
---|
1774 | break;
|
---|
1775 |
|
---|
1776 | case VMMR0_DO_GVMM_QUERY_STATISTICS:
|
---|
1777 | if (u64Arg)
|
---|
1778 | return VERR_INVALID_PARAMETER;
|
---|
1779 | rc = GVMMR0QueryStatisticsReq(pGVM, (PGVMMQUERYSTATISTICSSREQ)pReqHdr, pSession);
|
---|
1780 | break;
|
---|
1781 |
|
---|
1782 | case VMMR0_DO_GVMM_RESET_STATISTICS:
|
---|
1783 | if (u64Arg)
|
---|
1784 | return VERR_INVALID_PARAMETER;
|
---|
1785 | rc = GVMMR0ResetStatisticsReq(pGVM, (PGVMMRESETSTATISTICSSREQ)pReqHdr, pSession);
|
---|
1786 | break;
|
---|
1787 |
|
---|
1788 | /*
|
---|
1789 | * Initialize the R0 part of a VM instance.
|
---|
1790 | */
|
---|
1791 | case VMMR0_DO_VMMR0_INIT:
|
---|
1792 | rc = vmmR0InitVM(pGVM, RT_LODWORD(u64Arg), RT_HIDWORD(u64Arg));
|
---|
1793 | break;
|
---|
1794 |
|
---|
1795 | /*
|
---|
1796 | * Does EMT specific ring-0 init.
|
---|
1797 | */
|
---|
1798 | case VMMR0_DO_VMMR0_INIT_EMT:
|
---|
1799 | if (idCpu == NIL_VMCPUID)
|
---|
1800 | return VERR_INVALID_CPU_ID;
|
---|
1801 | rc = vmmR0InitVMEmt(pGVM, idCpu);
|
---|
1802 | break;
|
---|
1803 |
|
---|
1804 | /*
|
---|
1805 | * Terminate the R0 part of a VM instance.
|
---|
1806 | */
|
---|
1807 | case VMMR0_DO_VMMR0_TERM:
|
---|
1808 | rc = VMMR0TermVM(pGVM, 0 /*idCpu*/);
|
---|
1809 | break;
|
---|
1810 |
|
---|
1811 | /*
|
---|
1812 | * Update release or debug logger instances.
|
---|
1813 | */
|
---|
1814 | case VMMR0_DO_VMMR0_UPDATE_LOGGERS:
|
---|
1815 | if (idCpu == NIL_VMCPUID)
|
---|
1816 | return VERR_INVALID_CPU_ID;
|
---|
1817 | if (u64Arg < VMMLOGGER_IDX_MAX && pReqHdr != NULL)
|
---|
1818 | rc = vmmR0UpdateLoggers(pGVM, idCpu /*idCpu*/, (PVMMR0UPDATELOGGERSREQ)pReqHdr, (size_t)u64Arg);
|
---|
1819 | else
|
---|
1820 | return VERR_INVALID_PARAMETER;
|
---|
1821 | break;
|
---|
1822 |
|
---|
1823 | /*
|
---|
1824 | * Log flusher thread.
|
---|
1825 | */
|
---|
1826 | case VMMR0_DO_VMMR0_LOG_FLUSHER:
|
---|
1827 | if (idCpu != NIL_VMCPUID)
|
---|
1828 | return VERR_INVALID_CPU_ID;
|
---|
1829 | if (pReqHdr == NULL && pGVM != NULL)
|
---|
1830 | rc = vmmR0LogFlusher(pGVM);
|
---|
1831 | else
|
---|
1832 | return VERR_INVALID_PARAMETER;
|
---|
1833 | break;
|
---|
1834 |
|
---|
1835 | /*
|
---|
1836 | * Wait for the flush to finish with all the buffers for the given logger.
|
---|
1837 | */
|
---|
1838 | case VMMR0_DO_VMMR0_LOG_WAIT_FLUSHED:
|
---|
1839 | if (idCpu == NIL_VMCPUID)
|
---|
1840 | return VERR_INVALID_CPU_ID;
|
---|
1841 | if (u64Arg < VMMLOGGER_IDX_MAX && pReqHdr == NULL)
|
---|
1842 | rc = vmmR0LogWaitFlushed(pGVM, idCpu /*idCpu*/, (size_t)u64Arg);
|
---|
1843 | else
|
---|
1844 | return VERR_INVALID_PARAMETER;
|
---|
1845 | break;
|
---|
1846 |
|
---|
1847 | /*
|
---|
1848 | * Attempt to enable hm mode and check the current setting.
|
---|
1849 | */
|
---|
1850 | case VMMR0_DO_HM_ENABLE:
|
---|
1851 | rc = HMR0EnableAllCpus(pGVM);
|
---|
1852 | break;
|
---|
1853 |
|
---|
1854 | /*
|
---|
1855 | * Setup the hardware accelerated session.
|
---|
1856 | */
|
---|
1857 | case VMMR0_DO_HM_SETUP_VM:
|
---|
1858 | rc = HMR0SetupVM(pGVM);
|
---|
1859 | break;
|
---|
1860 |
|
---|
1861 | /*
|
---|
1862 | * PGM wrappers.
|
---|
1863 | */
|
---|
1864 | case VMMR0_DO_PGM_ALLOCATE_HANDY_PAGES:
|
---|
1865 | if (idCpu == NIL_VMCPUID)
|
---|
1866 | return VERR_INVALID_CPU_ID;
|
---|
1867 | rc = PGMR0PhysAllocateHandyPages(pGVM, idCpu);
|
---|
1868 | break;
|
---|
1869 |
|
---|
1870 | case VMMR0_DO_PGM_FLUSH_HANDY_PAGES:
|
---|
1871 | if (idCpu == NIL_VMCPUID)
|
---|
1872 | return VERR_INVALID_CPU_ID;
|
---|
1873 | rc = PGMR0PhysFlushHandyPages(pGVM, idCpu);
|
---|
1874 | break;
|
---|
1875 |
|
---|
1876 | case VMMR0_DO_PGM_ALLOCATE_LARGE_PAGE:
|
---|
1877 | if (idCpu == NIL_VMCPUID)
|
---|
1878 | return VERR_INVALID_CPU_ID;
|
---|
1879 | rc = PGMR0PhysAllocateLargePage(pGVM, idCpu, u64Arg);
|
---|
1880 | break;
|
---|
1881 |
|
---|
1882 | case VMMR0_DO_PGM_PHYS_SETUP_IOMMU:
|
---|
1883 | if (idCpu != 0)
|
---|
1884 | return VERR_INVALID_CPU_ID;
|
---|
1885 | rc = PGMR0PhysSetupIoMmu(pGVM);
|
---|
1886 | break;
|
---|
1887 |
|
---|
1888 | case VMMR0_DO_PGM_POOL_GROW:
|
---|
1889 | if (idCpu == NIL_VMCPUID)
|
---|
1890 | return VERR_INVALID_CPU_ID;
|
---|
1891 | rc = PGMR0PoolGrow(pGVM, idCpu);
|
---|
1892 | break;
|
---|
1893 |
|
---|
1894 | /*
|
---|
1895 | * GMM wrappers.
|
---|
1896 | */
|
---|
1897 | case VMMR0_DO_GMM_INITIAL_RESERVATION:
|
---|
1898 | if (u64Arg)
|
---|
1899 | return VERR_INVALID_PARAMETER;
|
---|
1900 | rc = GMMR0InitialReservationReq(pGVM, idCpu, (PGMMINITIALRESERVATIONREQ)pReqHdr);
|
---|
1901 | break;
|
---|
1902 |
|
---|
1903 | case VMMR0_DO_GMM_UPDATE_RESERVATION:
|
---|
1904 | if (u64Arg)
|
---|
1905 | return VERR_INVALID_PARAMETER;
|
---|
1906 | rc = GMMR0UpdateReservationReq(pGVM, idCpu, (PGMMUPDATERESERVATIONREQ)pReqHdr);
|
---|
1907 | break;
|
---|
1908 |
|
---|
1909 | case VMMR0_DO_GMM_ALLOCATE_PAGES:
|
---|
1910 | if (u64Arg)
|
---|
1911 | return VERR_INVALID_PARAMETER;
|
---|
1912 | rc = GMMR0AllocatePagesReq(pGVM, idCpu, (PGMMALLOCATEPAGESREQ)pReqHdr);
|
---|
1913 | break;
|
---|
1914 |
|
---|
1915 | case VMMR0_DO_GMM_FREE_PAGES:
|
---|
1916 | if (u64Arg)
|
---|
1917 | return VERR_INVALID_PARAMETER;
|
---|
1918 | rc = GMMR0FreePagesReq(pGVM, idCpu, (PGMMFREEPAGESREQ)pReqHdr);
|
---|
1919 | break;
|
---|
1920 |
|
---|
1921 | case VMMR0_DO_GMM_FREE_LARGE_PAGE:
|
---|
1922 | if (u64Arg)
|
---|
1923 | return VERR_INVALID_PARAMETER;
|
---|
1924 | rc = GMMR0FreeLargePageReq(pGVM, idCpu, (PGMMFREELARGEPAGEREQ)pReqHdr);
|
---|
1925 | break;
|
---|
1926 |
|
---|
1927 | case VMMR0_DO_GMM_QUERY_HYPERVISOR_MEM_STATS:
|
---|
1928 | if (u64Arg)
|
---|
1929 | return VERR_INVALID_PARAMETER;
|
---|
1930 | rc = GMMR0QueryHypervisorMemoryStatsReq((PGMMMEMSTATSREQ)pReqHdr);
|
---|
1931 | break;
|
---|
1932 |
|
---|
1933 | case VMMR0_DO_GMM_QUERY_MEM_STATS:
|
---|
1934 | if (idCpu == NIL_VMCPUID)
|
---|
1935 | return VERR_INVALID_CPU_ID;
|
---|
1936 | if (u64Arg)
|
---|
1937 | return VERR_INVALID_PARAMETER;
|
---|
1938 | rc = GMMR0QueryMemoryStatsReq(pGVM, idCpu, (PGMMMEMSTATSREQ)pReqHdr);
|
---|
1939 | break;
|
---|
1940 |
|
---|
1941 | case VMMR0_DO_GMM_BALLOONED_PAGES:
|
---|
1942 | if (u64Arg)
|
---|
1943 | return VERR_INVALID_PARAMETER;
|
---|
1944 | rc = GMMR0BalloonedPagesReq(pGVM, idCpu, (PGMMBALLOONEDPAGESREQ)pReqHdr);
|
---|
1945 | break;
|
---|
1946 |
|
---|
1947 | case VMMR0_DO_GMM_MAP_UNMAP_CHUNK:
|
---|
1948 | if (u64Arg)
|
---|
1949 | return VERR_INVALID_PARAMETER;
|
---|
1950 | rc = GMMR0MapUnmapChunkReq(pGVM, (PGMMMAPUNMAPCHUNKREQ)pReqHdr);
|
---|
1951 | break;
|
---|
1952 |
|
---|
1953 | case VMMR0_DO_GMM_REGISTER_SHARED_MODULE:
|
---|
1954 | if (idCpu == NIL_VMCPUID)
|
---|
1955 | return VERR_INVALID_CPU_ID;
|
---|
1956 | if (u64Arg)
|
---|
1957 | return VERR_INVALID_PARAMETER;
|
---|
1958 | rc = GMMR0RegisterSharedModuleReq(pGVM, idCpu, (PGMMREGISTERSHAREDMODULEREQ)pReqHdr);
|
---|
1959 | break;
|
---|
1960 |
|
---|
1961 | case VMMR0_DO_GMM_UNREGISTER_SHARED_MODULE:
|
---|
1962 | if (idCpu == NIL_VMCPUID)
|
---|
1963 | return VERR_INVALID_CPU_ID;
|
---|
1964 | if (u64Arg)
|
---|
1965 | return VERR_INVALID_PARAMETER;
|
---|
1966 | rc = GMMR0UnregisterSharedModuleReq(pGVM, idCpu, (PGMMUNREGISTERSHAREDMODULEREQ)pReqHdr);
|
---|
1967 | break;
|
---|
1968 |
|
---|
1969 | case VMMR0_DO_GMM_RESET_SHARED_MODULES:
|
---|
1970 | if (idCpu == NIL_VMCPUID)
|
---|
1971 | return VERR_INVALID_CPU_ID;
|
---|
1972 | if ( u64Arg
|
---|
1973 | || pReqHdr)
|
---|
1974 | return VERR_INVALID_PARAMETER;
|
---|
1975 | rc = GMMR0ResetSharedModules(pGVM, idCpu);
|
---|
1976 | break;
|
---|
1977 |
|
---|
1978 | #ifdef VBOX_WITH_PAGE_SHARING
|
---|
1979 | case VMMR0_DO_GMM_CHECK_SHARED_MODULES:
|
---|
1980 | {
|
---|
1981 | if (idCpu == NIL_VMCPUID)
|
---|
1982 | return VERR_INVALID_CPU_ID;
|
---|
1983 | if ( u64Arg
|
---|
1984 | || pReqHdr)
|
---|
1985 | return VERR_INVALID_PARAMETER;
|
---|
1986 | rc = GMMR0CheckSharedModules(pGVM, idCpu);
|
---|
1987 | break;
|
---|
1988 | }
|
---|
1989 | #endif
|
---|
1990 |
|
---|
1991 | #if defined(VBOX_STRICT) && HC_ARCH_BITS == 64
|
---|
1992 | case VMMR0_DO_GMM_FIND_DUPLICATE_PAGE:
|
---|
1993 | if (u64Arg)
|
---|
1994 | return VERR_INVALID_PARAMETER;
|
---|
1995 | rc = GMMR0FindDuplicatePageReq(pGVM, (PGMMFINDDUPLICATEPAGEREQ)pReqHdr);
|
---|
1996 | break;
|
---|
1997 | #endif
|
---|
1998 |
|
---|
1999 | case VMMR0_DO_GMM_QUERY_STATISTICS:
|
---|
2000 | if (u64Arg)
|
---|
2001 | return VERR_INVALID_PARAMETER;
|
---|
2002 | rc = GMMR0QueryStatisticsReq(pGVM, (PGMMQUERYSTATISTICSSREQ)pReqHdr);
|
---|
2003 | break;
|
---|
2004 |
|
---|
2005 | case VMMR0_DO_GMM_RESET_STATISTICS:
|
---|
2006 | if (u64Arg)
|
---|
2007 | return VERR_INVALID_PARAMETER;
|
---|
2008 | rc = GMMR0ResetStatisticsReq(pGVM, (PGMMRESETSTATISTICSSREQ)pReqHdr);
|
---|
2009 | break;
|
---|
2010 |
|
---|
2011 | /*
|
---|
2012 | * A quick GCFGM mock-up.
|
---|
2013 | */
|
---|
2014 | /** @todo GCFGM with proper access control, ring-3 management interface and all that. */
|
---|
2015 | case VMMR0_DO_GCFGM_SET_VALUE:
|
---|
2016 | case VMMR0_DO_GCFGM_QUERY_VALUE:
|
---|
2017 | {
|
---|
2018 | if (pGVM || !pReqHdr || u64Arg || idCpu != NIL_VMCPUID)
|
---|
2019 | return VERR_INVALID_PARAMETER;
|
---|
2020 | PGCFGMVALUEREQ pReq = (PGCFGMVALUEREQ)pReqHdr;
|
---|
2021 | if (pReq->Hdr.cbReq != sizeof(*pReq))
|
---|
2022 | return VERR_INVALID_PARAMETER;
|
---|
2023 | if (enmOperation == VMMR0_DO_GCFGM_SET_VALUE)
|
---|
2024 | {
|
---|
2025 | rc = GVMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
|
---|
2026 | //if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
2027 | // rc = GMMR0SetConfig(pReq->pSession, &pReq->szName[0], pReq->u64Value);
|
---|
2028 | }
|
---|
2029 | else
|
---|
2030 | {
|
---|
2031 | rc = GVMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
|
---|
2032 | //if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
2033 | // rc = GMMR0QueryConfig(pReq->pSession, &pReq->szName[0], &pReq->u64Value);
|
---|
2034 | }
|
---|
2035 | break;
|
---|
2036 | }
|
---|
2037 |
|
---|
2038 | /*
|
---|
2039 | * PDM Wrappers.
|
---|
2040 | */
|
---|
2041 | case VMMR0_DO_PDM_DRIVER_CALL_REQ_HANDLER:
|
---|
2042 | {
|
---|
2043 | if (!pReqHdr || u64Arg || idCpu != NIL_VMCPUID)
|
---|
2044 | return VERR_INVALID_PARAMETER;
|
---|
2045 | rc = PDMR0DriverCallReqHandler(pGVM, (PPDMDRIVERCALLREQHANDLERREQ)pReqHdr);
|
---|
2046 | break;
|
---|
2047 | }
|
---|
2048 |
|
---|
2049 | case VMMR0_DO_PDM_DEVICE_CREATE:
|
---|
2050 | {
|
---|
2051 | if (!pReqHdr || u64Arg || idCpu != 0)
|
---|
2052 | return VERR_INVALID_PARAMETER;
|
---|
2053 | rc = PDMR0DeviceCreateReqHandler(pGVM, (PPDMDEVICECREATEREQ)pReqHdr);
|
---|
2054 | break;
|
---|
2055 | }
|
---|
2056 |
|
---|
2057 | case VMMR0_DO_PDM_DEVICE_GEN_CALL:
|
---|
2058 | {
|
---|
2059 | if (!pReqHdr || u64Arg)
|
---|
2060 | return VERR_INVALID_PARAMETER;
|
---|
2061 | rc = PDMR0DeviceGenCallReqHandler(pGVM, (PPDMDEVICEGENCALLREQ)pReqHdr, idCpu);
|
---|
2062 | break;
|
---|
2063 | }
|
---|
2064 |
|
---|
2065 | /** @todo Remove the once all devices has been converted to new style! @bugref{9218} */
|
---|
2066 | case VMMR0_DO_PDM_DEVICE_COMPAT_SET_CRITSECT:
|
---|
2067 | {
|
---|
2068 | if (!pReqHdr || u64Arg || idCpu != 0)
|
---|
2069 | return VERR_INVALID_PARAMETER;
|
---|
2070 | rc = PDMR0DeviceCompatSetCritSectReqHandler(pGVM, (PPDMDEVICECOMPATSETCRITSECTREQ)pReqHdr);
|
---|
2071 | break;
|
---|
2072 | }
|
---|
2073 |
|
---|
2074 | /*
|
---|
2075 | * Requests to the internal networking service.
|
---|
2076 | */
|
---|
2077 | case VMMR0_DO_INTNET_OPEN:
|
---|
2078 | {
|
---|
2079 | PINTNETOPENREQ pReq = (PINTNETOPENREQ)pReqHdr;
|
---|
2080 | if (u64Arg || !pReq || !vmmR0IsValidSession(pGVM, pReq->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2081 | return VERR_INVALID_PARAMETER;
|
---|
2082 | rc = IntNetR0OpenReq(pSession, pReq);
|
---|
2083 | break;
|
---|
2084 | }
|
---|
2085 |
|
---|
2086 | case VMMR0_DO_INTNET_IF_CLOSE:
|
---|
2087 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PINTNETIFCLOSEREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2088 | return VERR_INVALID_PARAMETER;
|
---|
2089 | rc = IntNetR0IfCloseReq(pSession, (PINTNETIFCLOSEREQ)pReqHdr);
|
---|
2090 | break;
|
---|
2091 |
|
---|
2092 |
|
---|
2093 | case VMMR0_DO_INTNET_IF_GET_BUFFER_PTRS:
|
---|
2094 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PINTNETIFGETBUFFERPTRSREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2095 | return VERR_INVALID_PARAMETER;
|
---|
2096 | rc = IntNetR0IfGetBufferPtrsReq(pSession, (PINTNETIFGETBUFFERPTRSREQ)pReqHdr);
|
---|
2097 | break;
|
---|
2098 |
|
---|
2099 | case VMMR0_DO_INTNET_IF_SET_PROMISCUOUS_MODE:
|
---|
2100 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2101 | return VERR_INVALID_PARAMETER;
|
---|
2102 | rc = IntNetR0IfSetPromiscuousModeReq(pSession, (PINTNETIFSETPROMISCUOUSMODEREQ)pReqHdr);
|
---|
2103 | break;
|
---|
2104 |
|
---|
2105 | case VMMR0_DO_INTNET_IF_SET_MAC_ADDRESS:
|
---|
2106 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PINTNETIFSETMACADDRESSREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2107 | return VERR_INVALID_PARAMETER;
|
---|
2108 | rc = IntNetR0IfSetMacAddressReq(pSession, (PINTNETIFSETMACADDRESSREQ)pReqHdr);
|
---|
2109 | break;
|
---|
2110 |
|
---|
2111 | case VMMR0_DO_INTNET_IF_SET_ACTIVE:
|
---|
2112 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PINTNETIFSETACTIVEREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2113 | return VERR_INVALID_PARAMETER;
|
---|
2114 | rc = IntNetR0IfSetActiveReq(pSession, (PINTNETIFSETACTIVEREQ)pReqHdr);
|
---|
2115 | break;
|
---|
2116 |
|
---|
2117 | case VMMR0_DO_INTNET_IF_SEND:
|
---|
2118 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PINTNETIFSENDREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2119 | return VERR_INVALID_PARAMETER;
|
---|
2120 | rc = IntNetR0IfSendReq(pSession, (PINTNETIFSENDREQ)pReqHdr);
|
---|
2121 | break;
|
---|
2122 |
|
---|
2123 | case VMMR0_DO_INTNET_IF_WAIT:
|
---|
2124 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2125 | return VERR_INVALID_PARAMETER;
|
---|
2126 | rc = IntNetR0IfWaitReq(pSession, (PINTNETIFWAITREQ)pReqHdr);
|
---|
2127 | break;
|
---|
2128 |
|
---|
2129 | case VMMR0_DO_INTNET_IF_ABORT_WAIT:
|
---|
2130 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PINTNETIFWAITREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2131 | return VERR_INVALID_PARAMETER;
|
---|
2132 | rc = IntNetR0IfAbortWaitReq(pSession, (PINTNETIFABORTWAITREQ)pReqHdr);
|
---|
2133 | break;
|
---|
2134 |
|
---|
2135 | #if 0 //def VBOX_WITH_PCI_PASSTHROUGH
|
---|
2136 | /*
|
---|
2137 | * Requests to host PCI driver service.
|
---|
2138 | */
|
---|
2139 | case VMMR0_DO_PCIRAW_REQ:
|
---|
2140 | if (u64Arg || !pReqHdr || !vmmR0IsValidSession(pGVM, ((PPCIRAWSENDREQ)pReqHdr)->pSession, pSession) || idCpu != NIL_VMCPUID)
|
---|
2141 | return VERR_INVALID_PARAMETER;
|
---|
2142 | rc = PciRawR0ProcessReq(pGVM, pSession, (PPCIRAWSENDREQ)pReqHdr);
|
---|
2143 | break;
|
---|
2144 | #endif
|
---|
2145 |
|
---|
2146 | /*
|
---|
2147 | * NEM requests.
|
---|
2148 | */
|
---|
2149 | #ifdef VBOX_WITH_NEM_R0
|
---|
2150 | # if defined(RT_ARCH_AMD64) && defined(RT_OS_WINDOWS)
|
---|
2151 | case VMMR0_DO_NEM_INIT_VM:
|
---|
2152 | if (u64Arg || pReqHdr || idCpu != 0)
|
---|
2153 | return VERR_INVALID_PARAMETER;
|
---|
2154 | rc = NEMR0InitVM(pGVM);
|
---|
2155 | break;
|
---|
2156 |
|
---|
2157 | case VMMR0_DO_NEM_INIT_VM_PART_2:
|
---|
2158 | if (u64Arg || pReqHdr || idCpu != 0)
|
---|
2159 | return VERR_INVALID_PARAMETER;
|
---|
2160 | rc = NEMR0InitVMPart2(pGVM);
|
---|
2161 | break;
|
---|
2162 |
|
---|
2163 | case VMMR0_DO_NEM_MAP_PAGES:
|
---|
2164 | if (u64Arg || pReqHdr || idCpu == NIL_VMCPUID)
|
---|
2165 | return VERR_INVALID_PARAMETER;
|
---|
2166 | rc = NEMR0MapPages(pGVM, idCpu);
|
---|
2167 | break;
|
---|
2168 |
|
---|
2169 | case VMMR0_DO_NEM_UNMAP_PAGES:
|
---|
2170 | if (u64Arg || pReqHdr || idCpu == NIL_VMCPUID)
|
---|
2171 | return VERR_INVALID_PARAMETER;
|
---|
2172 | rc = NEMR0UnmapPages(pGVM, idCpu);
|
---|
2173 | break;
|
---|
2174 |
|
---|
2175 | case VMMR0_DO_NEM_EXPORT_STATE:
|
---|
2176 | if (u64Arg || pReqHdr || idCpu == NIL_VMCPUID)
|
---|
2177 | return VERR_INVALID_PARAMETER;
|
---|
2178 | rc = NEMR0ExportState(pGVM, idCpu);
|
---|
2179 | break;
|
---|
2180 |
|
---|
2181 | case VMMR0_DO_NEM_IMPORT_STATE:
|
---|
2182 | if (pReqHdr || idCpu == NIL_VMCPUID)
|
---|
2183 | return VERR_INVALID_PARAMETER;
|
---|
2184 | rc = NEMR0ImportState(pGVM, idCpu, u64Arg);
|
---|
2185 | break;
|
---|
2186 |
|
---|
2187 | case VMMR0_DO_NEM_QUERY_CPU_TICK:
|
---|
2188 | if (u64Arg || pReqHdr || idCpu == NIL_VMCPUID)
|
---|
2189 | return VERR_INVALID_PARAMETER;
|
---|
2190 | rc = NEMR0QueryCpuTick(pGVM, idCpu);
|
---|
2191 | break;
|
---|
2192 |
|
---|
2193 | case VMMR0_DO_NEM_RESUME_CPU_TICK_ON_ALL:
|
---|
2194 | if (pReqHdr || idCpu == NIL_VMCPUID)
|
---|
2195 | return VERR_INVALID_PARAMETER;
|
---|
2196 | rc = NEMR0ResumeCpuTickOnAll(pGVM, idCpu, u64Arg);
|
---|
2197 | break;
|
---|
2198 |
|
---|
2199 | case VMMR0_DO_NEM_UPDATE_STATISTICS:
|
---|
2200 | if (u64Arg || pReqHdr)
|
---|
2201 | return VERR_INVALID_PARAMETER;
|
---|
2202 | rc = NEMR0UpdateStatistics(pGVM, idCpu);
|
---|
2203 | break;
|
---|
2204 |
|
---|
2205 | # if 1 && defined(DEBUG_bird)
|
---|
2206 | case VMMR0_DO_NEM_EXPERIMENT:
|
---|
2207 | if (pReqHdr)
|
---|
2208 | return VERR_INVALID_PARAMETER;
|
---|
2209 | rc = NEMR0DoExperiment(pGVM, idCpu, u64Arg);
|
---|
2210 | break;
|
---|
2211 | # endif
|
---|
2212 | # endif
|
---|
2213 | #endif
|
---|
2214 |
|
---|
2215 | /*
|
---|
2216 | * IOM requests.
|
---|
2217 | */
|
---|
2218 | case VMMR0_DO_IOM_GROW_IO_PORTS:
|
---|
2219 | {
|
---|
2220 | if (pReqHdr || idCpu != 0)
|
---|
2221 | return VERR_INVALID_PARAMETER;
|
---|
2222 | rc = IOMR0IoPortGrowRegistrationTables(pGVM, u64Arg);
|
---|
2223 | break;
|
---|
2224 | }
|
---|
2225 |
|
---|
2226 | case VMMR0_DO_IOM_GROW_IO_PORT_STATS:
|
---|
2227 | {
|
---|
2228 | if (pReqHdr || idCpu != 0)
|
---|
2229 | return VERR_INVALID_PARAMETER;
|
---|
2230 | rc = IOMR0IoPortGrowStatisticsTable(pGVM, u64Arg);
|
---|
2231 | break;
|
---|
2232 | }
|
---|
2233 |
|
---|
2234 | case VMMR0_DO_IOM_GROW_MMIO_REGS:
|
---|
2235 | {
|
---|
2236 | if (pReqHdr || idCpu != 0)
|
---|
2237 | return VERR_INVALID_PARAMETER;
|
---|
2238 | rc = IOMR0MmioGrowRegistrationTables(pGVM, u64Arg);
|
---|
2239 | break;
|
---|
2240 | }
|
---|
2241 |
|
---|
2242 | case VMMR0_DO_IOM_GROW_MMIO_STATS:
|
---|
2243 | {
|
---|
2244 | if (pReqHdr || idCpu != 0)
|
---|
2245 | return VERR_INVALID_PARAMETER;
|
---|
2246 | rc = IOMR0MmioGrowStatisticsTable(pGVM, u64Arg);
|
---|
2247 | break;
|
---|
2248 | }
|
---|
2249 |
|
---|
2250 | case VMMR0_DO_IOM_SYNC_STATS_INDICES:
|
---|
2251 | {
|
---|
2252 | if (pReqHdr || idCpu != 0)
|
---|
2253 | return VERR_INVALID_PARAMETER;
|
---|
2254 | rc = IOMR0IoPortSyncStatisticsIndices(pGVM);
|
---|
2255 | if (RT_SUCCESS(rc))
|
---|
2256 | rc = IOMR0MmioSyncStatisticsIndices(pGVM);
|
---|
2257 | break;
|
---|
2258 | }
|
---|
2259 |
|
---|
2260 | /*
|
---|
2261 | * DBGF requests.
|
---|
2262 | */
|
---|
2263 | #ifdef VBOX_WITH_DBGF_TRACING
|
---|
2264 | case VMMR0_DO_DBGF_TRACER_CREATE:
|
---|
2265 | {
|
---|
2266 | if (!pReqHdr || u64Arg || idCpu != 0)
|
---|
2267 | return VERR_INVALID_PARAMETER;
|
---|
2268 | rc = DBGFR0TracerCreateReqHandler(pGVM, (PDBGFTRACERCREATEREQ)pReqHdr);
|
---|
2269 | break;
|
---|
2270 | }
|
---|
2271 |
|
---|
2272 | case VMMR0_DO_DBGF_TRACER_CALL_REQ_HANDLER:
|
---|
2273 | {
|
---|
2274 | if (!pReqHdr || u64Arg)
|
---|
2275 | return VERR_INVALID_PARAMETER;
|
---|
2276 | # if 0 /** @todo */
|
---|
2277 | rc = DBGFR0TracerGenCallReqHandler(pGVM, (PDBGFTRACERGENCALLREQ)pReqHdr, idCpu);
|
---|
2278 | # else
|
---|
2279 | rc = VERR_NOT_IMPLEMENTED;
|
---|
2280 | # endif
|
---|
2281 | break;
|
---|
2282 | }
|
---|
2283 | #endif
|
---|
2284 |
|
---|
2285 | case VMMR0_DO_DBGF_BP_INIT:
|
---|
2286 | {
|
---|
2287 | if (!pReqHdr || u64Arg || idCpu != 0)
|
---|
2288 | return VERR_INVALID_PARAMETER;
|
---|
2289 | rc = DBGFR0BpInitReqHandler(pGVM, (PDBGFBPINITREQ)pReqHdr);
|
---|
2290 | break;
|
---|
2291 | }
|
---|
2292 |
|
---|
2293 | case VMMR0_DO_DBGF_BP_CHUNK_ALLOC:
|
---|
2294 | {
|
---|
2295 | if (!pReqHdr || u64Arg || idCpu != 0)
|
---|
2296 | return VERR_INVALID_PARAMETER;
|
---|
2297 | rc = DBGFR0BpChunkAllocReqHandler(pGVM, (PDBGFBPCHUNKALLOCREQ)pReqHdr);
|
---|
2298 | break;
|
---|
2299 | }
|
---|
2300 |
|
---|
2301 | case VMMR0_DO_DBGF_BP_L2_TBL_CHUNK_ALLOC:
|
---|
2302 | {
|
---|
2303 | if (!pReqHdr || u64Arg || idCpu != 0)
|
---|
2304 | return VERR_INVALID_PARAMETER;
|
---|
2305 | rc = DBGFR0BpL2TblChunkAllocReqHandler(pGVM, (PDBGFBPL2TBLCHUNKALLOCREQ)pReqHdr);
|
---|
2306 | break;
|
---|
2307 | }
|
---|
2308 |
|
---|
2309 | case VMMR0_DO_DBGF_BP_OWNER_INIT:
|
---|
2310 | {
|
---|
2311 | if (!pReqHdr || u64Arg || idCpu != 0)
|
---|
2312 | return VERR_INVALID_PARAMETER;
|
---|
2313 | rc = DBGFR0BpOwnerInitReqHandler(pGVM, (PDBGFBPOWNERINITREQ)pReqHdr);
|
---|
2314 | break;
|
---|
2315 | }
|
---|
2316 |
|
---|
2317 | case VMMR0_DO_DBGF_BP_PORTIO_INIT:
|
---|
2318 | {
|
---|
2319 | if (!pReqHdr || u64Arg || idCpu != 0)
|
---|
2320 | return VERR_INVALID_PARAMETER;
|
---|
2321 | rc = DBGFR0BpPortIoInitReqHandler(pGVM, (PDBGFBPINITREQ)pReqHdr);
|
---|
2322 | break;
|
---|
2323 | }
|
---|
2324 |
|
---|
2325 |
|
---|
2326 | /*
|
---|
2327 | * TM requests.
|
---|
2328 | */
|
---|
2329 | case VMMR0_DO_TM_GROW_TIMER_QUEUE:
|
---|
2330 | {
|
---|
2331 | if (pReqHdr || idCpu == NIL_VMCPUID)
|
---|
2332 | return VERR_INVALID_PARAMETER;
|
---|
2333 | rc = TMR0TimerQueueGrow(pGVM, RT_HI_U32(u64Arg), RT_LO_U32(u64Arg));
|
---|
2334 | break;
|
---|
2335 | }
|
---|
2336 |
|
---|
2337 | /*
|
---|
2338 | * For profiling.
|
---|
2339 | */
|
---|
2340 | case VMMR0_DO_NOP:
|
---|
2341 | case VMMR0_DO_SLOW_NOP:
|
---|
2342 | return VINF_SUCCESS;
|
---|
2343 |
|
---|
2344 | /*
|
---|
2345 | * For testing Ring-0 APIs invoked in this environment.
|
---|
2346 | */
|
---|
2347 | case VMMR0_DO_TESTS:
|
---|
2348 | /** @todo make new test */
|
---|
2349 | return VINF_SUCCESS;
|
---|
2350 |
|
---|
2351 | default:
|
---|
2352 | /*
|
---|
2353 | * We're returning VERR_NOT_SUPPORT here so we've got something else
|
---|
2354 | * than -1 which the interrupt gate glue code might return.
|
---|
2355 | */
|
---|
2356 | Log(("operation %#x is not supported\n", enmOperation));
|
---|
2357 | return VERR_NOT_SUPPORTED;
|
---|
2358 | }
|
---|
2359 | return rc;
|
---|
2360 | }
|
---|
2361 |
|
---|
2362 |
|
---|
2363 | /**
|
---|
2364 | * This is just a longjmp wrapper function for VMMR0EntryEx calls.
|
---|
2365 | *
|
---|
2366 | * @returns VBox status code.
|
---|
2367 | * @param pvArgs The argument package
|
---|
2368 | */
|
---|
2369 | static DECLCALLBACK(int) vmmR0EntryExWrapper(void *pvArgs)
|
---|
2370 | {
|
---|
2371 | PGVMCPU pGVCpu = (PGVMCPU)pvArgs;
|
---|
2372 | return vmmR0EntryExWorker(pGVCpu->vmmr0.s.pGVM,
|
---|
2373 | pGVCpu->vmmr0.s.idCpu,
|
---|
2374 | pGVCpu->vmmr0.s.enmOperation,
|
---|
2375 | pGVCpu->vmmr0.s.pReq,
|
---|
2376 | pGVCpu->vmmr0.s.u64Arg,
|
---|
2377 | pGVCpu->vmmr0.s.pSession);
|
---|
2378 | }
|
---|
2379 |
|
---|
2380 |
|
---|
2381 | /**
|
---|
2382 | * The Ring 0 entry point, called by the support library (SUP).
|
---|
2383 | *
|
---|
2384 | * @returns VBox status code.
|
---|
2385 | * @param pGVM The global (ring-0) VM structure.
|
---|
2386 | * @param pVM The cross context VM structure.
|
---|
2387 | * @param idCpu Virtual CPU ID argument. Must be NIL_VMCPUID if pVM
|
---|
2388 | * is NIL_RTR0PTR, and may be NIL_VMCPUID if it isn't
|
---|
2389 | * @param enmOperation Which operation to execute.
|
---|
2390 | * @param pReq Pointer to the SUPVMMR0REQHDR packet. Optional.
|
---|
2391 | * @param u64Arg Some simple constant argument.
|
---|
2392 | * @param pSession The session of the caller.
|
---|
2393 | * @remarks Assume called with interrupts _enabled_.
|
---|
2394 | */
|
---|
2395 | VMMR0DECL(int) VMMR0EntryEx(PGVM pGVM, PVMCC pVM, VMCPUID idCpu, VMMR0OPERATION enmOperation,
|
---|
2396 | PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession)
|
---|
2397 | {
|
---|
2398 | /*
|
---|
2399 | * Requests that should only happen on the EMT thread will be
|
---|
2400 | * wrapped in a setjmp so we can assert without causing too much trouble.
|
---|
2401 | */
|
---|
2402 | if ( pVM != NULL
|
---|
2403 | && pGVM != NULL
|
---|
2404 | && pVM == pGVM /** @todo drop pVM or pGVM */
|
---|
2405 | && idCpu < pGVM->cCpus
|
---|
2406 | && pGVM->pSession == pSession
|
---|
2407 | && pGVM->pSelf == pGVM
|
---|
2408 | && enmOperation != VMMR0_DO_GVMM_DESTROY_VM
|
---|
2409 | && enmOperation != VMMR0_DO_GVMM_REGISTER_VMCPU
|
---|
2410 | && enmOperation != VMMR0_DO_GVMM_SCHED_WAKE_UP /* idCpu is not caller but target. Sigh. */ /** @todo fix*/
|
---|
2411 | && enmOperation != VMMR0_DO_GVMM_SCHED_POKE /* idCpu is not caller but target. Sigh. */ /** @todo fix*/
|
---|
2412 | )
|
---|
2413 | {
|
---|
2414 | PGVMCPU pGVCpu = &pGVM->aCpus[idCpu];
|
---|
2415 | RTNATIVETHREAD hNativeThread = RTThreadNativeSelf();
|
---|
2416 | if (RT_LIKELY( pGVCpu->hEMT == hNativeThread
|
---|
2417 | && pGVCpu->hNativeThreadR0 == hNativeThread))
|
---|
2418 | {
|
---|
2419 | pGVCpu->vmmr0.s.pGVM = pGVM;
|
---|
2420 | pGVCpu->vmmr0.s.idCpu = idCpu;
|
---|
2421 | pGVCpu->vmmr0.s.enmOperation = enmOperation;
|
---|
2422 | pGVCpu->vmmr0.s.pReq = pReq;
|
---|
2423 | pGVCpu->vmmr0.s.u64Arg = u64Arg;
|
---|
2424 | pGVCpu->vmmr0.s.pSession = pSession;
|
---|
2425 | return vmmR0CallRing3SetJmpEx(&pGVCpu->vmmr0.s.AssertJmpBuf, vmmR0EntryExWrapper, pGVCpu,
|
---|
2426 | ((uintptr_t)u64Arg << 16) | (uintptr_t)enmOperation);
|
---|
2427 | }
|
---|
2428 | return VERR_VM_THREAD_NOT_EMT;
|
---|
2429 | }
|
---|
2430 | return vmmR0EntryExWorker(pGVM, idCpu, enmOperation, pReq, u64Arg, pSession);
|
---|
2431 | }
|
---|
2432 |
|
---|
2433 |
|
---|
2434 | /*********************************************************************************************************************************
|
---|
2435 | * EMT Blocking *
|
---|
2436 | *********************************************************************************************************************************/
|
---|
2437 |
|
---|
2438 | /**
|
---|
2439 | * Checks whether we've armed the ring-0 long jump machinery.
|
---|
2440 | *
|
---|
2441 | * @returns @c true / @c false
|
---|
2442 | * @param pVCpu The cross context virtual CPU structure.
|
---|
2443 | * @thread EMT
|
---|
2444 | * @sa VMMIsLongJumpArmed
|
---|
2445 | */
|
---|
2446 | VMMR0_INT_DECL(bool) VMMR0IsLongJumpArmed(PVMCPUCC pVCpu)
|
---|
2447 | {
|
---|
2448 | #ifdef RT_ARCH_X86
|
---|
2449 | return pVCpu->vmmr0.s.AssertJmpBuf.eip != 0;
|
---|
2450 | #else
|
---|
2451 | return pVCpu->vmmr0.s.AssertJmpBuf.rip != 0;
|
---|
2452 | #endif
|
---|
2453 | }
|
---|
2454 |
|
---|
2455 |
|
---|
2456 | /**
|
---|
2457 | * Locking helper that deals with HM context and checks if the thread can block.
|
---|
2458 | *
|
---|
2459 | * @returns VINF_SUCCESS if we can block. Returns @a rcBusy or
|
---|
2460 | * VERR_VMM_CANNOT_BLOCK if not able to block.
|
---|
2461 | * @param pVCpu The cross context virtual CPU structure of the calling
|
---|
2462 | * thread.
|
---|
2463 | * @param rcBusy What to return in case of a blocking problem. Will IPE
|
---|
2464 | * if VINF_SUCCESS and we cannot block.
|
---|
2465 | * @param pszCaller The caller (for logging problems).
|
---|
2466 | * @param pvLock The lock address (for logging problems).
|
---|
2467 | * @param pCtx Where to return context info for the resume call.
|
---|
2468 | * @thread EMT(pVCpu)
|
---|
2469 | */
|
---|
2470 | VMMR0_INT_DECL(int) VMMR0EmtPrepareToBlock(PVMCPUCC pVCpu, int rcBusy, const char *pszCaller, void *pvLock,
|
---|
2471 | PVMMR0EMTBLOCKCTX pCtx)
|
---|
2472 | {
|
---|
2473 | const char *pszMsg;
|
---|
2474 |
|
---|
2475 | /*
|
---|
2476 | * Check that we are allowed to block.
|
---|
2477 | */
|
---|
2478 | if (RT_LIKELY(VMMRZCallRing3IsEnabled(pVCpu)))
|
---|
2479 | {
|
---|
2480 | /*
|
---|
2481 | * Are we in HM context and w/o a context hook? If so work the context hook.
|
---|
2482 | */
|
---|
2483 | if (pVCpu->idHostCpu != NIL_RTCPUID)
|
---|
2484 | {
|
---|
2485 | Assert(pVCpu->iHostCpuSet != UINT32_MAX);
|
---|
2486 |
|
---|
2487 | if (pVCpu->vmmr0.s.hCtxHook == NIL_RTTHREADCTXHOOK)
|
---|
2488 | {
|
---|
2489 | vmmR0ThreadCtxCallback(RTTHREADCTXEVENT_OUT, pVCpu);
|
---|
2490 | if (pVCpu->vmmr0.s.pPreemptState)
|
---|
2491 | RTThreadPreemptRestore(pVCpu->vmmr0.s.pPreemptState);
|
---|
2492 |
|
---|
2493 | pCtx->uMagic = VMMR0EMTBLOCKCTX_MAGIC;
|
---|
2494 | pCtx->fWasInHmContext = true;
|
---|
2495 | return VINF_SUCCESS;
|
---|
2496 | }
|
---|
2497 | }
|
---|
2498 |
|
---|
2499 | if (RT_LIKELY(!pVCpu->vmmr0.s.pPreemptState))
|
---|
2500 | {
|
---|
2501 | /*
|
---|
2502 | * Not in HM context or we've got hooks, so just check that preemption
|
---|
2503 | * is enabled.
|
---|
2504 | */
|
---|
2505 | if (RT_LIKELY(RTThreadPreemptIsEnabled(NIL_RTTHREAD)))
|
---|
2506 | {
|
---|
2507 | pCtx->uMagic = VMMR0EMTBLOCKCTX_MAGIC;
|
---|
2508 | pCtx->fWasInHmContext = false;
|
---|
2509 | return VINF_SUCCESS;
|
---|
2510 | }
|
---|
2511 | pszMsg = "Preemption is disabled!";
|
---|
2512 | }
|
---|
2513 | else
|
---|
2514 | pszMsg = "Preemption state w/o HM state!";
|
---|
2515 | }
|
---|
2516 | else
|
---|
2517 | pszMsg = "Ring-3 calls are disabled!";
|
---|
2518 |
|
---|
2519 | static uint32_t volatile s_cWarnings = 0;
|
---|
2520 | if (++s_cWarnings < 50)
|
---|
2521 | SUPR0Printf("VMMR0EmtPrepareToBlock: %s pvLock=%p pszCaller=%s rcBusy=%p\n", pszMsg, pvLock, pszCaller, rcBusy);
|
---|
2522 | pCtx->uMagic = VMMR0EMTBLOCKCTX_MAGIC_DEAD;
|
---|
2523 | pCtx->fWasInHmContext = false;
|
---|
2524 | return rcBusy != VINF_SUCCESS ? rcBusy : VERR_VMM_CANNOT_BLOCK;
|
---|
2525 | }
|
---|
2526 |
|
---|
2527 |
|
---|
2528 | /**
|
---|
2529 | * Counterpart to VMMR0EmtPrepareToBlock.
|
---|
2530 | *
|
---|
2531 | * @param pVCpu The cross context virtual CPU structure of the calling
|
---|
2532 | * thread.
|
---|
2533 | * @param pCtx The context structure used with VMMR0EmtPrepareToBlock.
|
---|
2534 | * @thread EMT(pVCpu)
|
---|
2535 | */
|
---|
2536 | VMMR0_INT_DECL(void) VMMR0EmtResumeAfterBlocking(PVMCPUCC pVCpu, PVMMR0EMTBLOCKCTX pCtx)
|
---|
2537 | {
|
---|
2538 | AssertReturnVoid(pCtx->uMagic == VMMR0EMTBLOCKCTX_MAGIC);
|
---|
2539 | if (pCtx->fWasInHmContext)
|
---|
2540 | {
|
---|
2541 | if (pVCpu->vmmr0.s.pPreemptState)
|
---|
2542 | RTThreadPreemptDisable(pVCpu->vmmr0.s.pPreemptState);
|
---|
2543 |
|
---|
2544 | pCtx->fWasInHmContext = false;
|
---|
2545 | vmmR0ThreadCtxCallback(RTTHREADCTXEVENT_IN, pVCpu);
|
---|
2546 | }
|
---|
2547 | pCtx->uMagic = VMMR0EMTBLOCKCTX_MAGIC_DEAD;
|
---|
2548 | }
|
---|
2549 |
|
---|
2550 |
|
---|
2551 | /**
|
---|
2552 | * Helper for waiting on an RTSEMEVENT, caller did VMMR0EmtPrepareToBlock.
|
---|
2553 | *
|
---|
2554 | * @returns
|
---|
2555 | * @retval VERR_THREAD_IS_TERMINATING
|
---|
2556 | * @retval VERR_TIMEOUT if we ended up waiting too long, either according to
|
---|
2557 | * @a cMsTimeout or to maximum wait values.
|
---|
2558 | *
|
---|
2559 | * @param pGVCpu The ring-0 virtual CPU structure.
|
---|
2560 | * @param fFlags VMMR0EMTWAIT_F_XXX.
|
---|
2561 | * @param hEvent The event to wait on.
|
---|
2562 | * @param cMsTimeout The timeout or RT_INDEFINITE_WAIT.
|
---|
2563 | */
|
---|
2564 | VMMR0_INT_DECL(int) VMMR0EmtWaitEventInner(PGVMCPU pGVCpu, uint32_t fFlags, RTSEMEVENT hEvent, RTMSINTERVAL cMsTimeout)
|
---|
2565 | {
|
---|
2566 | AssertReturn(pGVCpu->hEMT == RTThreadNativeSelf(), VERR_VM_THREAD_NOT_EMT);
|
---|
2567 |
|
---|
2568 | /*
|
---|
2569 | * Note! Similar code is found in the PDM critical sections too.
|
---|
2570 | */
|
---|
2571 | uint64_t const nsStart = RTTimeNanoTS();
|
---|
2572 | uint64_t cNsMaxTotal = cMsTimeout == RT_INDEFINITE_WAIT
|
---|
2573 | ? RT_NS_5MIN : RT_MIN(RT_NS_5MIN, RT_NS_1MS_64 * cMsTimeout);
|
---|
2574 | uint32_t cMsMaxOne = RT_MS_5SEC;
|
---|
2575 | bool fNonInterruptible = false;
|
---|
2576 | for (;;)
|
---|
2577 | {
|
---|
2578 | /* Wait. */
|
---|
2579 | int rcWait = !fNonInterruptible
|
---|
2580 | ? RTSemEventWaitNoResume(hEvent, cMsMaxOne)
|
---|
2581 | : RTSemEventWait(hEvent, cMsMaxOne);
|
---|
2582 | if (RT_SUCCESS(rcWait))
|
---|
2583 | return rcWait;
|
---|
2584 |
|
---|
2585 | if (rcWait == VERR_TIMEOUT || rcWait == VERR_INTERRUPTED)
|
---|
2586 | {
|
---|
2587 | uint64_t const cNsElapsed = RTTimeNanoTS() - nsStart;
|
---|
2588 |
|
---|
2589 | /*
|
---|
2590 | * Check the thread termination status.
|
---|
2591 | */
|
---|
2592 | int const rcTerm = RTThreadQueryTerminationStatus(NIL_RTTHREAD);
|
---|
2593 | AssertMsg(rcTerm == VINF_SUCCESS || rcTerm == VERR_NOT_SUPPORTED || rcTerm == VINF_THREAD_IS_TERMINATING,
|
---|
2594 | ("rcTerm=%Rrc\n", rcTerm));
|
---|
2595 | if ( rcTerm == VERR_NOT_SUPPORTED
|
---|
2596 | && !fNonInterruptible
|
---|
2597 | && cNsMaxTotal > RT_NS_1MIN)
|
---|
2598 | cNsMaxTotal = RT_NS_1MIN;
|
---|
2599 |
|
---|
2600 | /* We return immediately if it looks like the thread is terminating. */
|
---|
2601 | if (rcTerm == VINF_THREAD_IS_TERMINATING)
|
---|
2602 | return VERR_THREAD_IS_TERMINATING;
|
---|
2603 |
|
---|
2604 | /* We may suppress VERR_INTERRUPTED if VMMR0EMTWAIT_F_TRY_SUPPRESS_INTERRUPTED was
|
---|
2605 | specified, otherwise we'll just return it. */
|
---|
2606 | if (rcWait == VERR_INTERRUPTED)
|
---|
2607 | {
|
---|
2608 | if (!(fFlags & VMMR0EMTWAIT_F_TRY_SUPPRESS_INTERRUPTED))
|
---|
2609 | return VERR_INTERRUPTED;
|
---|
2610 | if (!fNonInterruptible)
|
---|
2611 | {
|
---|
2612 | /* First time: Adjust down the wait parameters and make sure we get at least
|
---|
2613 | one non-interruptible wait before timing out. */
|
---|
2614 | fNonInterruptible = true;
|
---|
2615 | cMsMaxOne = 32;
|
---|
2616 | uint64_t const cNsLeft = cNsMaxTotal - cNsElapsed;
|
---|
2617 | if (cNsLeft > RT_NS_10SEC)
|
---|
2618 | cNsMaxTotal = cNsElapsed + RT_NS_10SEC;
|
---|
2619 | continue;
|
---|
2620 | }
|
---|
2621 | }
|
---|
2622 |
|
---|
2623 | /* Check for timeout. */
|
---|
2624 | if (cNsElapsed > cNsMaxTotal)
|
---|
2625 | return VERR_TIMEOUT;
|
---|
2626 | }
|
---|
2627 | else
|
---|
2628 | return rcWait;
|
---|
2629 | }
|
---|
2630 | /* not reached */
|
---|
2631 | }
|
---|
2632 |
|
---|
2633 |
|
---|
2634 | /**
|
---|
2635 | * Helper for signalling an SUPSEMEVENT.
|
---|
2636 | *
|
---|
2637 | * This may temporarily leave the HM context if the host requires that for
|
---|
2638 | * signalling SUPSEMEVENT objects.
|
---|
2639 | *
|
---|
2640 | * @returns VBox status code (see VMMR0EmtPrepareToBlock)
|
---|
2641 | * @param pGVM The ring-0 VM structure.
|
---|
2642 | * @param pGVCpu The ring-0 virtual CPU structure.
|
---|
2643 | * @param hEvent The event to signal.
|
---|
2644 | */
|
---|
2645 | VMMR0_INT_DECL(int) VMMR0EmtSignalSupEvent(PGVM pGVM, PGVMCPU pGVCpu, SUPSEMEVENT hEvent)
|
---|
2646 | {
|
---|
2647 | AssertReturn(pGVCpu->hEMT == RTThreadNativeSelf(), VERR_VM_THREAD_NOT_EMT);
|
---|
2648 | if (RTSemEventIsSignalSafe())
|
---|
2649 | return SUPSemEventSignal(pGVM->pSession, hEvent);
|
---|
2650 |
|
---|
2651 | VMMR0EMTBLOCKCTX Ctx;
|
---|
2652 | int rc = VMMR0EmtPrepareToBlock(pGVCpu, VINF_SUCCESS, __FUNCTION__, (void *)(uintptr_t)hEvent, &Ctx);
|
---|
2653 | if (RT_SUCCESS(rc))
|
---|
2654 | {
|
---|
2655 | rc = SUPSemEventSignal(pGVM->pSession, hEvent);
|
---|
2656 | VMMR0EmtResumeAfterBlocking(pGVCpu, &Ctx);
|
---|
2657 | }
|
---|
2658 | return rc;
|
---|
2659 | }
|
---|
2660 |
|
---|
2661 |
|
---|
2662 | /**
|
---|
2663 | * Helper for signalling an SUPSEMEVENT, variant supporting non-EMTs.
|
---|
2664 | *
|
---|
2665 | * This may temporarily leave the HM context if the host requires that for
|
---|
2666 | * signalling SUPSEMEVENT objects.
|
---|
2667 | *
|
---|
2668 | * @returns VBox status code (see VMMR0EmtPrepareToBlock)
|
---|
2669 | * @param pGVM The ring-0 VM structure.
|
---|
2670 | * @param hEvent The event to signal.
|
---|
2671 | */
|
---|
2672 | VMMR0_INT_DECL(int) VMMR0EmtSignalSupEventByGVM(PGVM pGVM, SUPSEMEVENT hEvent)
|
---|
2673 | {
|
---|
2674 | if (!RTSemEventIsSignalSafe())
|
---|
2675 | {
|
---|
2676 | PGVMCPU pGVCpu = GVMMR0GetGVCpuByGVMandEMT(pGVM, NIL_RTNATIVETHREAD);
|
---|
2677 | if (pGVCpu)
|
---|
2678 | {
|
---|
2679 | VMMR0EMTBLOCKCTX Ctx;
|
---|
2680 | int rc = VMMR0EmtPrepareToBlock(pGVCpu, VINF_SUCCESS, __FUNCTION__, (void *)(uintptr_t)hEvent, &Ctx);
|
---|
2681 | if (RT_SUCCESS(rc))
|
---|
2682 | {
|
---|
2683 | rc = SUPSemEventSignal(pGVM->pSession, hEvent);
|
---|
2684 | VMMR0EmtResumeAfterBlocking(pGVCpu, &Ctx);
|
---|
2685 | }
|
---|
2686 | return rc;
|
---|
2687 | }
|
---|
2688 | }
|
---|
2689 | return SUPSemEventSignal(pGVM->pSession, hEvent);
|
---|
2690 | }
|
---|
2691 |
|
---|
2692 |
|
---|
2693 | /*********************************************************************************************************************************
|
---|
2694 | * Logging. *
|
---|
2695 | *********************************************************************************************************************************/
|
---|
2696 |
|
---|
2697 | /**
|
---|
2698 | * VMMR0_DO_VMMR0_UPDATE_LOGGERS: Updates the EMT loggers for the VM.
|
---|
2699 | *
|
---|
2700 | * @returns VBox status code.
|
---|
2701 | * @param pGVM The global (ring-0) VM structure.
|
---|
2702 | * @param idCpu The ID of the calling EMT.
|
---|
2703 | * @param pReq The request data.
|
---|
2704 | * @param idxLogger Which logger set to update.
|
---|
2705 | * @thread EMT(idCpu)
|
---|
2706 | */
|
---|
2707 | static int vmmR0UpdateLoggers(PGVM pGVM, VMCPUID idCpu, PVMMR0UPDATELOGGERSREQ pReq, size_t idxLogger)
|
---|
2708 | {
|
---|
2709 | /*
|
---|
2710 | * Check sanity. First we require EMT to be calling us.
|
---|
2711 | */
|
---|
2712 | AssertReturn(idCpu < pGVM->cCpus, VERR_INVALID_CPU_ID);
|
---|
2713 | AssertReturn(pGVM->aCpus[idCpu].hEMT == RTThreadNativeSelf(), VERR_INVALID_CPU_ID);
|
---|
2714 |
|
---|
2715 | AssertReturn(pReq->Hdr.cbReq >= RT_UOFFSETOF_DYN(VMMR0UPDATELOGGERSREQ, afGroups[0]), VERR_INVALID_PARAMETER);
|
---|
2716 | AssertReturn(pReq->cGroups < _8K, VERR_INVALID_PARAMETER);
|
---|
2717 | AssertReturn(pReq->Hdr.cbReq == RT_UOFFSETOF_DYN(VMMR0UPDATELOGGERSREQ, afGroups[pReq->cGroups]), VERR_INVALID_PARAMETER);
|
---|
2718 |
|
---|
2719 | AssertReturn(idxLogger < VMMLOGGER_IDX_MAX, VERR_OUT_OF_RANGE);
|
---|
2720 |
|
---|
2721 | /*
|
---|
2722 | * Adjust flags.
|
---|
2723 | */
|
---|
2724 | /* Always buffered: */
|
---|
2725 | pReq->fFlags |= RTLOGFLAGS_BUFFERED;
|
---|
2726 | /* These doesn't make sense at present: */
|
---|
2727 | pReq->fFlags &= ~(RTLOGFLAGS_FLUSH | RTLOGFLAGS_WRITE_THROUGH);
|
---|
2728 | /* We've traditionally skipped the group restrictions. */
|
---|
2729 | pReq->fFlags &= ~RTLOGFLAGS_RESTRICT_GROUPS;
|
---|
2730 |
|
---|
2731 | /*
|
---|
2732 | * Do the updating.
|
---|
2733 | */
|
---|
2734 | int rc = VINF_SUCCESS;
|
---|
2735 | for (idCpu = 0; idCpu < pGVM->cCpus; idCpu++)
|
---|
2736 | {
|
---|
2737 | PGVMCPU pGVCpu = &pGVM->aCpus[idCpu];
|
---|
2738 | PRTLOGGER pLogger = pGVCpu->vmmr0.s.u.aLoggers[idxLogger].pLogger;
|
---|
2739 | if (pLogger)
|
---|
2740 | {
|
---|
2741 | RTLogSetR0ProgramStart(pLogger, pGVM->vmm.s.nsProgramStart);
|
---|
2742 | rc = RTLogBulkUpdate(pLogger, pReq->fFlags, pReq->uGroupCrc32, pReq->cGroups, pReq->afGroups);
|
---|
2743 | }
|
---|
2744 | }
|
---|
2745 |
|
---|
2746 | return rc;
|
---|
2747 | }
|
---|
2748 |
|
---|
2749 |
|
---|
2750 | /**
|
---|
2751 | * VMMR0_DO_VMMR0_LOG_FLUSHER: Get the next log flushing job.
|
---|
2752 | *
|
---|
2753 | * The job info is copied into VMM::LogFlusherItem.
|
---|
2754 | *
|
---|
2755 | * @returns VBox status code.
|
---|
2756 | * @retval VERR_OBJECT_DESTROYED if we're shutting down.
|
---|
2757 | * @retval VERR_NOT_OWNER if the calling thread is not the flusher thread.
|
---|
2758 | * @param pGVM The global (ring-0) VM structure.
|
---|
2759 | * @thread The log flusher thread (first caller automatically becomes the log
|
---|
2760 | * flusher).
|
---|
2761 | */
|
---|
2762 | static int vmmR0LogFlusher(PGVM pGVM)
|
---|
2763 | {
|
---|
2764 | /*
|
---|
2765 | * Check that this really is the flusher thread.
|
---|
2766 | */
|
---|
2767 | RTNATIVETHREAD const hNativeSelf = RTThreadNativeSelf();
|
---|
2768 | AssertReturn(hNativeSelf != NIL_RTNATIVETHREAD, VERR_INTERNAL_ERROR_3);
|
---|
2769 | if (RT_LIKELY(pGVM->vmmr0.s.LogFlusher.hThread == hNativeSelf))
|
---|
2770 | { /* likely */ }
|
---|
2771 | else
|
---|
2772 | {
|
---|
2773 | /* The first caller becomes the flusher thread. */
|
---|
2774 | bool fOk;
|
---|
2775 | ASMAtomicCmpXchgHandle(&pGVM->vmmr0.s.LogFlusher.hThread, hNativeSelf, NIL_RTNATIVETHREAD, fOk);
|
---|
2776 | if (!fOk)
|
---|
2777 | return VERR_NOT_OWNER;
|
---|
2778 | pGVM->vmmr0.s.LogFlusher.fThreadRunning = true;
|
---|
2779 | }
|
---|
2780 |
|
---|
2781 | /*
|
---|
2782 | * Acknowledge flush, waking up waiting EMT.
|
---|
2783 | */
|
---|
2784 | RTSpinlockAcquire(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2785 |
|
---|
2786 | uint32_t idxTail = pGVM->vmmr0.s.LogFlusher.idxRingTail % RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing);
|
---|
2787 | uint32_t idxHead = pGVM->vmmr0.s.LogFlusher.idxRingHead % RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing);
|
---|
2788 | if ( idxTail != idxHead
|
---|
2789 | && pGVM->vmmr0.s.LogFlusher.aRing[idxHead].s.fProcessing)
|
---|
2790 | {
|
---|
2791 | /* Pop the head off the ring buffer. */
|
---|
2792 | uint32_t const idCpu = pGVM->vmmr0.s.LogFlusher.aRing[idxHead].s.idCpu;
|
---|
2793 | uint32_t const idxLogger = pGVM->vmmr0.s.LogFlusher.aRing[idxHead].s.idxLogger;
|
---|
2794 | uint32_t const idxBuffer = pGVM->vmmr0.s.LogFlusher.aRing[idxHead].s.idxBuffer;
|
---|
2795 |
|
---|
2796 | pGVM->vmmr0.s.LogFlusher.aRing[idxHead].u32 = UINT32_MAX >> 1; /* invalidate the entry */
|
---|
2797 | pGVM->vmmr0.s.LogFlusher.idxRingHead = (idxHead + 1) % RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing);
|
---|
2798 |
|
---|
2799 | /* Validate content. */
|
---|
2800 | if ( idCpu < pGVM->cCpus
|
---|
2801 | && idxLogger < VMMLOGGER_IDX_MAX
|
---|
2802 | && idxBuffer < VMMLOGGER_BUFFER_COUNT)
|
---|
2803 | {
|
---|
2804 | PGVMCPU pGVCpu = &pGVM->aCpus[idCpu];
|
---|
2805 | PVMMR0PERVCPULOGGER pR0Log = &pGVCpu->vmmr0.s.u.aLoggers[idxLogger];
|
---|
2806 | PVMMR3CPULOGGER pShared = &pGVCpu->vmm.s.u.aLoggers[idxLogger];
|
---|
2807 |
|
---|
2808 | /*
|
---|
2809 | * Accounting.
|
---|
2810 | */
|
---|
2811 | uint32_t cFlushing = pR0Log->cFlushing - 1;
|
---|
2812 | if (RT_LIKELY(cFlushing < VMMLOGGER_BUFFER_COUNT))
|
---|
2813 | { /*likely*/ }
|
---|
2814 | else
|
---|
2815 | cFlushing = 0;
|
---|
2816 | pR0Log->cFlushing = cFlushing;
|
---|
2817 | ASMAtomicWriteU32(&pShared->cFlushing, cFlushing);
|
---|
2818 |
|
---|
2819 | /*
|
---|
2820 | * Wake up the EMT if it's waiting.
|
---|
2821 | */
|
---|
2822 | if (!pR0Log->fEmtWaiting)
|
---|
2823 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2824 | else
|
---|
2825 | {
|
---|
2826 | pR0Log->fEmtWaiting = false;
|
---|
2827 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2828 |
|
---|
2829 | int rc = RTSemEventSignal(pR0Log->hEventFlushWait);
|
---|
2830 | if (RT_FAILURE(rc))
|
---|
2831 | LogRelMax(64, ("vmmR0LogFlusher: RTSemEventSignal failed ACKing entry #%u (%u/%u/%u): %Rrc!\n",
|
---|
2832 | idxHead, idCpu, idxLogger, idxBuffer, rc));
|
---|
2833 | }
|
---|
2834 | }
|
---|
2835 | else
|
---|
2836 | {
|
---|
2837 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2838 | LogRelMax(64, ("vmmR0LogFlusher: Bad ACK entry #%u: %u/%u/%u!\n", idxHead, idCpu, idxLogger, idxBuffer));
|
---|
2839 | }
|
---|
2840 |
|
---|
2841 | RTSpinlockAcquire(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2842 | }
|
---|
2843 |
|
---|
2844 | /*
|
---|
2845 | * The wait loop.
|
---|
2846 | */
|
---|
2847 | int rc;
|
---|
2848 | for (;;)
|
---|
2849 | {
|
---|
2850 | /*
|
---|
2851 | * Work pending?
|
---|
2852 | */
|
---|
2853 | idxTail = pGVM->vmmr0.s.LogFlusher.idxRingTail % RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing);
|
---|
2854 | idxHead = pGVM->vmmr0.s.LogFlusher.idxRingHead % RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing);
|
---|
2855 | if (idxTail != idxHead)
|
---|
2856 | {
|
---|
2857 | pGVM->vmmr0.s.LogFlusher.aRing[idxHead].s.fProcessing = true;
|
---|
2858 | pGVM->vmm.s.LogFlusherItem.u32 = pGVM->vmmr0.s.LogFlusher.aRing[idxHead].u32;
|
---|
2859 |
|
---|
2860 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2861 | return VINF_SUCCESS;
|
---|
2862 | }
|
---|
2863 |
|
---|
2864 | /*
|
---|
2865 | * Nothing to do, so, check for termination and go to sleep.
|
---|
2866 | */
|
---|
2867 | if (!pGVM->vmmr0.s.LogFlusher.fThreadShutdown)
|
---|
2868 | { /* likely */ }
|
---|
2869 | else
|
---|
2870 | {
|
---|
2871 | rc = VERR_OBJECT_DESTROYED;
|
---|
2872 | break;
|
---|
2873 | }
|
---|
2874 |
|
---|
2875 | pGVM->vmmr0.s.LogFlusher.fThreadWaiting = true;
|
---|
2876 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2877 |
|
---|
2878 | rc = RTSemEventWaitNoResume(pGVM->vmmr0.s.LogFlusher.hEvent, RT_MS_5MIN);
|
---|
2879 |
|
---|
2880 | RTSpinlockAcquire(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2881 | pGVM->vmmr0.s.LogFlusher.fThreadWaiting = false;
|
---|
2882 |
|
---|
2883 | if (RT_SUCCESS(rc) || rc == VERR_TIMEOUT)
|
---|
2884 | { /* likely */ }
|
---|
2885 | else if (rc == VERR_INTERRUPTED)
|
---|
2886 | {
|
---|
2887 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2888 | return rc;
|
---|
2889 | }
|
---|
2890 | else if (rc == VERR_SEM_DESTROYED || rc == VERR_INVALID_HANDLE)
|
---|
2891 | break;
|
---|
2892 | else
|
---|
2893 | {
|
---|
2894 | LogRel(("vmmR0LogFlusher: RTSemEventWaitNoResume returned unexpected status %Rrc\n", rc));
|
---|
2895 | break;
|
---|
2896 | }
|
---|
2897 | }
|
---|
2898 |
|
---|
2899 | /*
|
---|
2900 | * Terminating - prevent further calls and indicate to the EMTs that we're no longer around.
|
---|
2901 | */
|
---|
2902 | pGVM->vmmr0.s.LogFlusher.hThread = ~pGVM->vmmr0.s.LogFlusher.hThread; /* (should be reasonably safe) */
|
---|
2903 | pGVM->vmmr0.s.LogFlusher.fThreadRunning = false;
|
---|
2904 |
|
---|
2905 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2906 | return rc;
|
---|
2907 | }
|
---|
2908 |
|
---|
2909 |
|
---|
2910 | /**
|
---|
2911 | * VMMR0_DO_VMMR0_LOG_WAIT_FLUSHED: Waits for the flusher thread to finish all
|
---|
2912 | * buffers for logger @a idxLogger.
|
---|
2913 | *
|
---|
2914 | * @returns VBox status code.
|
---|
2915 | * @param pGVM The global (ring-0) VM structure.
|
---|
2916 | * @param idCpu The ID of the calling EMT.
|
---|
2917 | * @param idxLogger Which logger to wait on.
|
---|
2918 | * @thread EMT(idCpu)
|
---|
2919 | */
|
---|
2920 | static int vmmR0LogWaitFlushed(PGVM pGVM, VMCPUID idCpu, size_t idxLogger)
|
---|
2921 | {
|
---|
2922 | /*
|
---|
2923 | * Check sanity. First we require EMT to be calling us.
|
---|
2924 | */
|
---|
2925 | AssertReturn(idCpu < pGVM->cCpus, VERR_INVALID_CPU_ID);
|
---|
2926 | PGVMCPU pGVCpu = &pGVM->aCpus[idCpu];
|
---|
2927 | AssertReturn(pGVCpu->hEMT == RTThreadNativeSelf(), VERR_INVALID_CPU_ID);
|
---|
2928 | AssertReturn(idxLogger < VMMLOGGER_IDX_MAX, VERR_OUT_OF_RANGE);
|
---|
2929 | PVMMR0PERVCPULOGGER const pR0Log = &pGVCpu->vmmr0.s.u.aLoggers[idxLogger];
|
---|
2930 |
|
---|
2931 | /*
|
---|
2932 | * Do the waiting.
|
---|
2933 | */
|
---|
2934 | int rc = VINF_SUCCESS;
|
---|
2935 | RTSpinlockAcquire(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2936 | uint32_t cFlushing = pR0Log->cFlushing;
|
---|
2937 | while (cFlushing > 0)
|
---|
2938 | {
|
---|
2939 | pR0Log->fEmtWaiting = true;
|
---|
2940 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2941 |
|
---|
2942 | rc = RTSemEventWaitNoResume(pR0Log->hEventFlushWait, RT_MS_5MIN);
|
---|
2943 |
|
---|
2944 | RTSpinlockAcquire(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2945 | pR0Log->fEmtWaiting = false;
|
---|
2946 | if (RT_SUCCESS(rc))
|
---|
2947 | {
|
---|
2948 | /* Read the new count, make sure it decreased before looping. That
|
---|
2949 | way we can guarentee that we will only wait more than 5 min * buffers. */
|
---|
2950 | uint32_t const cPrevFlushing = cFlushing;
|
---|
2951 | cFlushing = pR0Log->cFlushing;
|
---|
2952 | if (cFlushing < cPrevFlushing)
|
---|
2953 | continue;
|
---|
2954 | rc = VERR_INTERNAL_ERROR_3;
|
---|
2955 | }
|
---|
2956 | break;
|
---|
2957 | }
|
---|
2958 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
2959 | return rc;
|
---|
2960 | }
|
---|
2961 |
|
---|
2962 |
|
---|
2963 | /**
|
---|
2964 | * Inner worker for vmmR0LoggerFlushCommon.
|
---|
2965 | */
|
---|
2966 | static bool vmmR0LoggerFlushInner(PGVM pGVM, PGVMCPU pGVCpu, uint32_t idxLogger, size_t idxBuffer, uint32_t cbToFlush)
|
---|
2967 | {
|
---|
2968 | PVMMR0PERVCPULOGGER const pR0Log = &pGVCpu->vmmr0.s.u.aLoggers[idxLogger];
|
---|
2969 | PVMMR3CPULOGGER const pShared = &pGVCpu->vmm.s.u.aLoggers[idxLogger];
|
---|
2970 |
|
---|
2971 | /*
|
---|
2972 | * Figure out what we need to do and whether we can.
|
---|
2973 | */
|
---|
2974 | enum { kJustSignal, kPrepAndSignal, kPrepSignalAndWait } enmAction;
|
---|
2975 | #if VMMLOGGER_BUFFER_COUNT >= 2
|
---|
2976 | if (pR0Log->cFlushing < VMMLOGGER_BUFFER_COUNT - 1)
|
---|
2977 | {
|
---|
2978 | if (RTSemEventIsSignalSafe())
|
---|
2979 | enmAction = kJustSignal;
|
---|
2980 | else if (VMMRZCallRing3IsEnabled(pGVCpu))
|
---|
2981 | enmAction = kPrepAndSignal;
|
---|
2982 | else
|
---|
2983 | {
|
---|
2984 | /** @todo This is a bit simplistic. We could introduce a FF to signal the
|
---|
2985 | * thread or similar. */
|
---|
2986 | STAM_REL_COUNTER_INC(&pShared->StatCannotBlock);
|
---|
2987 | # if defined(RT_OS_LINUX)
|
---|
2988 | SUP_DPRINTF(("vmmR0LoggerFlush: Signalling not safe and EMT blocking disabled! (%u bytes)\n", cbToFlush));
|
---|
2989 | # endif
|
---|
2990 | pShared->cbDropped += cbToFlush;
|
---|
2991 | return true;
|
---|
2992 | }
|
---|
2993 | }
|
---|
2994 | else
|
---|
2995 | #endif
|
---|
2996 | if (VMMRZCallRing3IsEnabled(pGVCpu))
|
---|
2997 | enmAction = kPrepSignalAndWait;
|
---|
2998 | else
|
---|
2999 | {
|
---|
3000 | STAM_REL_COUNTER_INC(&pShared->StatCannotBlock);
|
---|
3001 | # if defined(RT_OS_LINUX)
|
---|
3002 | SUP_DPRINTF(("vmmR0LoggerFlush: EMT blocking disabled! (%u bytes)\n", cbToFlush));
|
---|
3003 | # endif
|
---|
3004 | pShared->cbDropped += cbToFlush;
|
---|
3005 | return true;
|
---|
3006 | }
|
---|
3007 |
|
---|
3008 | /*
|
---|
3009 | * Prepare for blocking if necessary.
|
---|
3010 | */
|
---|
3011 | VMMR0EMTBLOCKCTX Ctx;
|
---|
3012 | if (enmAction != kJustSignal)
|
---|
3013 | {
|
---|
3014 | int rc = VMMR0EmtPrepareToBlock(pGVCpu, VINF_SUCCESS, "vmmR0LoggerFlushInner", pR0Log->hEventFlushWait, &Ctx);
|
---|
3015 | if (RT_SUCCESS(rc))
|
---|
3016 | { /* likely */ }
|
---|
3017 | else
|
---|
3018 | {
|
---|
3019 | STAM_REL_COUNTER_INC(&pShared->StatCannotBlock);
|
---|
3020 | SUP_DPRINTF(("vmmR0LoggerFlush: VMMR0EmtPrepareToBlock failed! rc=%d\n", rc));
|
---|
3021 | return false;
|
---|
3022 | }
|
---|
3023 | }
|
---|
3024 |
|
---|
3025 | /*
|
---|
3026 | * Queue the flush job.
|
---|
3027 | */
|
---|
3028 | bool fFlushedBuffer;
|
---|
3029 | RTSpinlockAcquire(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
3030 | if (pGVM->vmmr0.s.LogFlusher.fThreadRunning)
|
---|
3031 | {
|
---|
3032 | uint32_t const idxHead = pGVM->vmmr0.s.LogFlusher.idxRingHead % RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing);
|
---|
3033 | uint32_t const idxTail = pGVM->vmmr0.s.LogFlusher.idxRingTail % RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing);
|
---|
3034 | uint32_t const idxNewTail = (idxTail + 1) % RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing);
|
---|
3035 | if (idxNewTail != idxHead)
|
---|
3036 | {
|
---|
3037 | /* Queue it. */
|
---|
3038 | pGVM->vmmr0.s.LogFlusher.aRing[idxTail].s.idCpu = pGVCpu->idCpu;
|
---|
3039 | pGVM->vmmr0.s.LogFlusher.aRing[idxTail].s.idxLogger = idxLogger;
|
---|
3040 | pGVM->vmmr0.s.LogFlusher.aRing[idxTail].s.idxBuffer = (uint32_t)idxBuffer;
|
---|
3041 | pGVM->vmmr0.s.LogFlusher.aRing[idxTail].s.fProcessing = 0;
|
---|
3042 | pGVM->vmmr0.s.LogFlusher.idxRingTail = idxNewTail;
|
---|
3043 |
|
---|
3044 | /* Update the number of buffers currently being flushed. */
|
---|
3045 | uint32_t cFlushing = pR0Log->cFlushing;
|
---|
3046 | cFlushing = RT_MIN(cFlushing + 1, VMMLOGGER_BUFFER_COUNT);
|
---|
3047 | pShared->cFlushing = pR0Log->cFlushing = cFlushing;
|
---|
3048 |
|
---|
3049 | /* We must wait if all buffers are currently being flushed. */
|
---|
3050 | bool const fEmtWaiting = cFlushing >= VMMLOGGER_BUFFER_COUNT && enmAction != kJustSignal /* paranoia */;
|
---|
3051 | pR0Log->fEmtWaiting = fEmtWaiting;
|
---|
3052 |
|
---|
3053 | /* Stats. */
|
---|
3054 | STAM_REL_COUNTER_INC(&pShared->StatFlushes);
|
---|
3055 | STAM_REL_COUNTER_INC(&pGVM->vmm.s.StatLogFlusherFlushes);
|
---|
3056 |
|
---|
3057 | /* Signal the worker thread. */
|
---|
3058 | if (pGVM->vmmr0.s.LogFlusher.fThreadWaiting)
|
---|
3059 | {
|
---|
3060 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
3061 | RTSemEventSignal(pGVM->vmmr0.s.LogFlusher.hEvent);
|
---|
3062 | }
|
---|
3063 | else
|
---|
3064 | {
|
---|
3065 | STAM_REL_COUNTER_INC(&pGVM->vmm.s.StatLogFlusherNoWakeUp);
|
---|
3066 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
3067 | }
|
---|
3068 |
|
---|
3069 | /*
|
---|
3070 | * Wait for a buffer to finish flushing.
|
---|
3071 | *
|
---|
3072 | * Note! Lazy bird is ignoring the status code here. The result is
|
---|
3073 | * that we might end up with an extra even signalling and the
|
---|
3074 | * next time we need to wait we won't and end up with some log
|
---|
3075 | * corruption. However, it's too much hazzle right now for
|
---|
3076 | * a scenario which would most likely end the process rather
|
---|
3077 | * than causing log corruption.
|
---|
3078 | */
|
---|
3079 | if (fEmtWaiting)
|
---|
3080 | {
|
---|
3081 | STAM_REL_PROFILE_START(&pShared->StatWait, a);
|
---|
3082 | VMMR0EmtWaitEventInner(pGVCpu, VMMR0EMTWAIT_F_TRY_SUPPRESS_INTERRUPTED,
|
---|
3083 | pR0Log->hEventFlushWait, RT_INDEFINITE_WAIT);
|
---|
3084 | STAM_REL_PROFILE_STOP(&pShared->StatWait, a);
|
---|
3085 | }
|
---|
3086 |
|
---|
3087 | /*
|
---|
3088 | * We always switch buffer if we have more than one.
|
---|
3089 | */
|
---|
3090 | #if VMMLOGGER_BUFFER_COUNT == 1
|
---|
3091 | fFlushedBuffer = true;
|
---|
3092 | #else
|
---|
3093 | AssertCompile(VMMLOGGER_BUFFER_COUNT >= 1);
|
---|
3094 | pShared->idxBuf = (idxBuffer + 1) % VMMLOGGER_BUFFER_COUNT;
|
---|
3095 | fFlushedBuffer = false;
|
---|
3096 | #endif
|
---|
3097 | }
|
---|
3098 | else
|
---|
3099 | {
|
---|
3100 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
3101 | SUP_DPRINTF(("vmmR0LoggerFlush: ring buffer is full!\n"));
|
---|
3102 | fFlushedBuffer = true;
|
---|
3103 | }
|
---|
3104 | }
|
---|
3105 | else
|
---|
3106 | {
|
---|
3107 | RTSpinlockRelease(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
3108 | SUP_DPRINTF(("vmmR0LoggerFlush: flusher not active - dropping %u bytes\n", cbToFlush));
|
---|
3109 | fFlushedBuffer = true;
|
---|
3110 | }
|
---|
3111 |
|
---|
3112 | /*
|
---|
3113 | * Restore the HM context.
|
---|
3114 | */
|
---|
3115 | if (enmAction != kJustSignal)
|
---|
3116 | VMMR0EmtResumeAfterBlocking(pGVCpu, &Ctx);
|
---|
3117 |
|
---|
3118 | return fFlushedBuffer;
|
---|
3119 | }
|
---|
3120 |
|
---|
3121 |
|
---|
3122 | /**
|
---|
3123 | * Common worker for vmmR0LogFlush and vmmR0LogRelFlush.
|
---|
3124 | */
|
---|
3125 | static bool vmmR0LoggerFlushCommon(PRTLOGGER pLogger, PRTLOGBUFFERDESC pBufDesc, uint32_t idxLogger)
|
---|
3126 | {
|
---|
3127 | /*
|
---|
3128 | * Convert the pLogger into a GVMCPU handle and 'call' back to Ring-3.
|
---|
3129 | * (This is a bit paranoid code.)
|
---|
3130 | */
|
---|
3131 | if (RT_VALID_PTR(pLogger))
|
---|
3132 | {
|
---|
3133 | if ( pLogger->u32Magic == RTLOGGER_MAGIC
|
---|
3134 | && (pLogger->u32UserValue1 & VMMR0_LOGGER_FLAGS_MAGIC_MASK) == VMMR0_LOGGER_FLAGS_MAGIC_VALUE
|
---|
3135 | && pLogger->u64UserValue2 == pLogger->u64UserValue3)
|
---|
3136 | {
|
---|
3137 | PGVMCPU const pGVCpu = (PGVMCPU)(uintptr_t)pLogger->u64UserValue2;
|
---|
3138 | if ( RT_VALID_PTR(pGVCpu)
|
---|
3139 | && ((uintptr_t)pGVCpu & PAGE_OFFSET_MASK) == 0)
|
---|
3140 | {
|
---|
3141 | RTNATIVETHREAD const hNativeSelf = RTThreadNativeSelf();
|
---|
3142 | PGVM const pGVM = pGVCpu->pGVM;
|
---|
3143 | if ( hNativeSelf == pGVCpu->hEMT
|
---|
3144 | && RT_VALID_PTR(pGVM))
|
---|
3145 | {
|
---|
3146 | PVMMR0PERVCPULOGGER const pR0Log = &pGVCpu->vmmr0.s.u.aLoggers[idxLogger];
|
---|
3147 | size_t const idxBuffer = pBufDesc - &pR0Log->aBufDescs[0];
|
---|
3148 | if (idxBuffer < VMMLOGGER_BUFFER_COUNT)
|
---|
3149 | {
|
---|
3150 | /*
|
---|
3151 | * Make sure we don't recurse forever here should something in the
|
---|
3152 | * following code trigger logging or an assertion. Do the rest in
|
---|
3153 | * an inner work to avoid hitting the right margin too hard.
|
---|
3154 | */
|
---|
3155 | if (!pR0Log->fFlushing)
|
---|
3156 | {
|
---|
3157 | pR0Log->fFlushing = true;
|
---|
3158 | bool fFlushed = vmmR0LoggerFlushInner(pGVM, pGVCpu, idxLogger, idxBuffer, pBufDesc->offBuf);
|
---|
3159 | pR0Log->fFlushing = false;
|
---|
3160 | return fFlushed;
|
---|
3161 | }
|
---|
3162 |
|
---|
3163 | SUP_DPRINTF(("vmmR0LoggerFlush: Recursive flushing!\n"));
|
---|
3164 | }
|
---|
3165 | else
|
---|
3166 | SUP_DPRINTF(("vmmR0LoggerFlush: pLogger=%p pGVCpu=%p: idxBuffer=%#zx\n", pLogger, pGVCpu, idxBuffer));
|
---|
3167 | }
|
---|
3168 | else
|
---|
3169 | SUP_DPRINTF(("vmmR0LoggerFlush: pLogger=%p pGVCpu=%p hEMT=%p hNativeSelf=%p!\n",
|
---|
3170 | pLogger, pGVCpu, pGVCpu->hEMT, hNativeSelf));
|
---|
3171 | }
|
---|
3172 | else
|
---|
3173 | SUP_DPRINTF(("vmmR0LoggerFlush: pLogger=%p pGVCpu=%p!\n", pLogger, pGVCpu));
|
---|
3174 | }
|
---|
3175 | else
|
---|
3176 | SUP_DPRINTF(("vmmR0LoggerFlush: pLogger=%p u32Magic=%#x u32UserValue1=%#x u64UserValue2=%#RX64 u64UserValue3=%#RX64!\n",
|
---|
3177 | pLogger, pLogger->u32Magic, pLogger->u32UserValue1, pLogger->u64UserValue2, pLogger->u64UserValue3));
|
---|
3178 | }
|
---|
3179 | else
|
---|
3180 | SUP_DPRINTF(("vmmR0LoggerFlush: pLogger=%p!\n", pLogger));
|
---|
3181 | return true;
|
---|
3182 | }
|
---|
3183 |
|
---|
3184 |
|
---|
3185 | /**
|
---|
3186 | * @callback_method_impl{FNRTLOGFLUSH, Release logger buffer flush callback.}
|
---|
3187 | */
|
---|
3188 | static DECLCALLBACK(bool) vmmR0LogRelFlush(PRTLOGGER pLogger, PRTLOGBUFFERDESC pBufDesc)
|
---|
3189 | {
|
---|
3190 | return vmmR0LoggerFlushCommon(pLogger, pBufDesc, VMMLOGGER_IDX_RELEASE);
|
---|
3191 | }
|
---|
3192 |
|
---|
3193 |
|
---|
3194 | /**
|
---|
3195 | * @callback_method_impl{FNRTLOGFLUSH, Logger (debug) buffer flush callback.}
|
---|
3196 | */
|
---|
3197 | static DECLCALLBACK(bool) vmmR0LogFlush(PRTLOGGER pLogger, PRTLOGBUFFERDESC pBufDesc)
|
---|
3198 | {
|
---|
3199 | #ifdef LOG_ENABLED
|
---|
3200 | return vmmR0LoggerFlushCommon(pLogger, pBufDesc, VMMLOGGER_IDX_REGULAR);
|
---|
3201 | #else
|
---|
3202 | RT_NOREF(pLogger, pBufDesc);
|
---|
3203 | return true;
|
---|
3204 | #endif
|
---|
3205 | }
|
---|
3206 |
|
---|
3207 |
|
---|
3208 | /*
|
---|
3209 | * Override RTLogDefaultInstanceEx so we can do logging from EMTs in ring-0.
|
---|
3210 | */
|
---|
3211 | DECLEXPORT(PRTLOGGER) RTLogDefaultInstanceEx(uint32_t fFlagsAndGroup)
|
---|
3212 | {
|
---|
3213 | #ifdef LOG_ENABLED
|
---|
3214 | PGVMCPU pGVCpu = GVMMR0GetGVCpuByEMT(NIL_RTNATIVETHREAD);
|
---|
3215 | if (pGVCpu)
|
---|
3216 | {
|
---|
3217 | PRTLOGGER pLogger = pGVCpu->vmmr0.s.u.s.Logger.pLogger;
|
---|
3218 | if (RT_VALID_PTR(pLogger))
|
---|
3219 | {
|
---|
3220 | if ( pLogger->u64UserValue2 == (uintptr_t)pGVCpu
|
---|
3221 | && pLogger->u64UserValue3 == (uintptr_t)pGVCpu)
|
---|
3222 | {
|
---|
3223 | if (!pGVCpu->vmmr0.s.u.s.Logger.fFlushing)
|
---|
3224 | {
|
---|
3225 | if (!(pGVCpu->vmmr0.s.fLogFlushingDisabled))
|
---|
3226 | return RTLogCheckGroupFlags(pLogger, fFlagsAndGroup);
|
---|
3227 | return NULL;
|
---|
3228 | }
|
---|
3229 |
|
---|
3230 | /*
|
---|
3231 | * When we're flushing we _must_ return NULL here to suppress any
|
---|
3232 | * attempts at using the logger while in vmmR0LoggerFlushCommon.
|
---|
3233 | * The VMMR0EmtPrepareToBlock code may trigger logging in HM,
|
---|
3234 | * which will reset the buffer content before we even get to queue
|
---|
3235 | * the flush request. (Only an issue when VBOX_WITH_R0_LOGGING
|
---|
3236 | * is enabled.)
|
---|
3237 | */
|
---|
3238 | return NULL;
|
---|
3239 | }
|
---|
3240 | }
|
---|
3241 | }
|
---|
3242 | #endif
|
---|
3243 | return SUPR0DefaultLogInstanceEx(fFlagsAndGroup);
|
---|
3244 | }
|
---|
3245 |
|
---|
3246 |
|
---|
3247 | /*
|
---|
3248 | * Override RTLogRelGetDefaultInstanceEx so we can do LogRel to VBox.log from EMTs in ring-0.
|
---|
3249 | */
|
---|
3250 | DECLEXPORT(PRTLOGGER) RTLogRelGetDefaultInstanceEx(uint32_t fFlagsAndGroup)
|
---|
3251 | {
|
---|
3252 | PGVMCPU pGVCpu = GVMMR0GetGVCpuByEMT(NIL_RTNATIVETHREAD);
|
---|
3253 | if (pGVCpu)
|
---|
3254 | {
|
---|
3255 | PRTLOGGER pLogger = pGVCpu->vmmr0.s.u.s.RelLogger.pLogger;
|
---|
3256 | if (RT_VALID_PTR(pLogger))
|
---|
3257 | {
|
---|
3258 | if ( pLogger->u64UserValue2 == (uintptr_t)pGVCpu
|
---|
3259 | && pLogger->u64UserValue3 == (uintptr_t)pGVCpu)
|
---|
3260 | {
|
---|
3261 | if (!pGVCpu->vmmr0.s.u.s.RelLogger.fFlushing)
|
---|
3262 | {
|
---|
3263 | if (!(pGVCpu->vmmr0.s.fLogFlushingDisabled))
|
---|
3264 | return RTLogCheckGroupFlags(pLogger, fFlagsAndGroup);
|
---|
3265 | return NULL;
|
---|
3266 | }
|
---|
3267 | }
|
---|
3268 | }
|
---|
3269 | }
|
---|
3270 | return SUPR0GetDefaultLogRelInstanceEx(fFlagsAndGroup);
|
---|
3271 | }
|
---|
3272 |
|
---|
3273 |
|
---|
3274 | /**
|
---|
3275 | * Helper for vmmR0InitLoggerSet
|
---|
3276 | */
|
---|
3277 | static int vmmR0InitLoggerOne(PGVMCPU pGVCpu, bool fRelease, PVMMR0PERVCPULOGGER pR0Log, PVMMR3CPULOGGER pShared,
|
---|
3278 | uint32_t cbBuf, char *pchBuf, RTR3PTR pchBufR3)
|
---|
3279 | {
|
---|
3280 | /*
|
---|
3281 | * Create and configure the logger.
|
---|
3282 | */
|
---|
3283 | for (size_t i = 0; i < VMMLOGGER_BUFFER_COUNT; i++)
|
---|
3284 | {
|
---|
3285 | pR0Log->aBufDescs[i].u32Magic = RTLOGBUFFERDESC_MAGIC;
|
---|
3286 | pR0Log->aBufDescs[i].uReserved = 0;
|
---|
3287 | pR0Log->aBufDescs[i].cbBuf = cbBuf;
|
---|
3288 | pR0Log->aBufDescs[i].offBuf = 0;
|
---|
3289 | pR0Log->aBufDescs[i].pchBuf = pchBuf + i * cbBuf;
|
---|
3290 | pR0Log->aBufDescs[i].pAux = &pShared->aBufs[i].AuxDesc;
|
---|
3291 |
|
---|
3292 | pShared->aBufs[i].AuxDesc.fFlushedIndicator = false;
|
---|
3293 | pShared->aBufs[i].AuxDesc.afPadding[0] = 0;
|
---|
3294 | pShared->aBufs[i].AuxDesc.afPadding[1] = 0;
|
---|
3295 | pShared->aBufs[i].AuxDesc.afPadding[2] = 0;
|
---|
3296 | pShared->aBufs[i].AuxDesc.offBuf = 0;
|
---|
3297 | pShared->aBufs[i].pchBufR3 = pchBufR3 + i * cbBuf;
|
---|
3298 | }
|
---|
3299 | pShared->cbBuf = cbBuf;
|
---|
3300 |
|
---|
3301 | static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
|
---|
3302 | int rc = RTLogCreateEx(&pR0Log->pLogger, fRelease ? "VBOX_RELEASE_LOG" : "VBOX_LOG", RTLOG_F_NO_LOCKING | RTLOGFLAGS_BUFFERED,
|
---|
3303 | "all", RT_ELEMENTS(s_apszGroups), s_apszGroups, UINT32_MAX,
|
---|
3304 | VMMLOGGER_BUFFER_COUNT, pR0Log->aBufDescs, RTLOGDEST_DUMMY,
|
---|
3305 | NULL /*pfnPhase*/, 0 /*cHistory*/, 0 /*cbHistoryFileMax*/, 0 /*cSecsHistoryTimeSlot*/,
|
---|
3306 | NULL /*pErrInfo*/, NULL /*pszFilenameFmt*/);
|
---|
3307 | if (RT_SUCCESS(rc))
|
---|
3308 | {
|
---|
3309 | PRTLOGGER pLogger = pR0Log->pLogger;
|
---|
3310 | pLogger->u32UserValue1 = VMMR0_LOGGER_FLAGS_MAGIC_VALUE;
|
---|
3311 | pLogger->u64UserValue2 = (uintptr_t)pGVCpu;
|
---|
3312 | pLogger->u64UserValue3 = (uintptr_t)pGVCpu;
|
---|
3313 |
|
---|
3314 | rc = RTLogSetFlushCallback(pLogger, fRelease ? vmmR0LogRelFlush : vmmR0LogFlush);
|
---|
3315 | if (RT_SUCCESS(rc))
|
---|
3316 | {
|
---|
3317 | RTLogSetR0ThreadNameF(pLogger, "EMT-%u-R0", pGVCpu->idCpu);
|
---|
3318 |
|
---|
3319 | /*
|
---|
3320 | * Create the event sem the EMT waits on while flushing is happening.
|
---|
3321 | */
|
---|
3322 | rc = RTSemEventCreate(&pR0Log->hEventFlushWait);
|
---|
3323 | if (RT_SUCCESS(rc))
|
---|
3324 | return VINF_SUCCESS;
|
---|
3325 | pR0Log->hEventFlushWait = NIL_RTSEMEVENT;
|
---|
3326 | }
|
---|
3327 | RTLogDestroy(pLogger);
|
---|
3328 | }
|
---|
3329 | pR0Log->pLogger = NULL;
|
---|
3330 | return rc;
|
---|
3331 | }
|
---|
3332 |
|
---|
3333 |
|
---|
3334 | /**
|
---|
3335 | * Worker for VMMR0CleanupVM and vmmR0InitLoggerSet that destroys one logger.
|
---|
3336 | */
|
---|
3337 | static void vmmR0TermLoggerOne(PVMMR0PERVCPULOGGER pR0Log, PVMMR3CPULOGGER pShared)
|
---|
3338 | {
|
---|
3339 | RTLogDestroy(pR0Log->pLogger);
|
---|
3340 | pR0Log->pLogger = NULL;
|
---|
3341 |
|
---|
3342 | for (size_t i = 0; i < VMMLOGGER_BUFFER_COUNT; i++)
|
---|
3343 | pShared->aBufs[i].pchBufR3 = NIL_RTR3PTR;
|
---|
3344 |
|
---|
3345 | RTSemEventDestroy(pR0Log->hEventFlushWait);
|
---|
3346 | pR0Log->hEventFlushWait = NIL_RTSEMEVENT;
|
---|
3347 | }
|
---|
3348 |
|
---|
3349 |
|
---|
3350 | /**
|
---|
3351 | * Initializes one type of loggers for each EMT.
|
---|
3352 | */
|
---|
3353 | static int vmmR0InitLoggerSet(PGVM pGVM, uint8_t idxLogger, uint32_t cbBuf, PRTR0MEMOBJ phMemObj, PRTR0MEMOBJ phMapObj)
|
---|
3354 | {
|
---|
3355 | /* Allocate buffers first. */
|
---|
3356 | int rc = RTR0MemObjAllocPage(phMemObj, cbBuf * pGVM->cCpus * VMMLOGGER_BUFFER_COUNT, false /*fExecutable*/);
|
---|
3357 | if (RT_SUCCESS(rc))
|
---|
3358 | {
|
---|
3359 | rc = RTR0MemObjMapUser(phMapObj, *phMemObj, (RTR3PTR)-1, 0 /*uAlignment*/, RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3360 | if (RT_SUCCESS(rc))
|
---|
3361 | {
|
---|
3362 | char * const pchBuf = (char *)RTR0MemObjAddress(*phMemObj);
|
---|
3363 | AssertPtrReturn(pchBuf, VERR_INTERNAL_ERROR_2);
|
---|
3364 |
|
---|
3365 | RTR3PTR const pchBufR3 = RTR0MemObjAddressR3(*phMapObj);
|
---|
3366 | AssertReturn(pchBufR3 != NIL_RTR3PTR, VERR_INTERNAL_ERROR_3);
|
---|
3367 |
|
---|
3368 | /* Initialize the per-CPU loggers. */
|
---|
3369 | for (uint32_t i = 0; i < pGVM->cCpus; i++)
|
---|
3370 | {
|
---|
3371 | PGVMCPU pGVCpu = &pGVM->aCpus[i];
|
---|
3372 | PVMMR0PERVCPULOGGER pR0Log = &pGVCpu->vmmr0.s.u.aLoggers[idxLogger];
|
---|
3373 | PVMMR3CPULOGGER pShared = &pGVCpu->vmm.s.u.aLoggers[idxLogger];
|
---|
3374 | rc = vmmR0InitLoggerOne(pGVCpu, idxLogger == VMMLOGGER_IDX_RELEASE, pR0Log, pShared, cbBuf,
|
---|
3375 | pchBuf + i * cbBuf * VMMLOGGER_BUFFER_COUNT,
|
---|
3376 | pchBufR3 + i * cbBuf * VMMLOGGER_BUFFER_COUNT);
|
---|
3377 | if (RT_FAILURE(rc))
|
---|
3378 | {
|
---|
3379 | vmmR0TermLoggerOne(pR0Log, pShared);
|
---|
3380 | while (i-- > 0)
|
---|
3381 | {
|
---|
3382 | pGVCpu = &pGVM->aCpus[i];
|
---|
3383 | vmmR0TermLoggerOne(&pGVCpu->vmmr0.s.u.aLoggers[idxLogger], &pGVCpu->vmm.s.u.aLoggers[idxLogger]);
|
---|
3384 | }
|
---|
3385 | break;
|
---|
3386 | }
|
---|
3387 | }
|
---|
3388 | if (RT_SUCCESS(rc))
|
---|
3389 | return VINF_SUCCESS;
|
---|
3390 |
|
---|
3391 | /* Bail out. */
|
---|
3392 | RTR0MemObjFree(*phMapObj, false /*fFreeMappings*/);
|
---|
3393 | *phMapObj = NIL_RTR0MEMOBJ;
|
---|
3394 | }
|
---|
3395 | RTR0MemObjFree(*phMemObj, true /*fFreeMappings*/);
|
---|
3396 | *phMemObj = NIL_RTR0MEMOBJ;
|
---|
3397 | }
|
---|
3398 | return rc;
|
---|
3399 | }
|
---|
3400 |
|
---|
3401 |
|
---|
3402 | /**
|
---|
3403 | * Worker for VMMR0InitPerVMData that initializes all the logging related stuff.
|
---|
3404 | *
|
---|
3405 | * @returns VBox status code.
|
---|
3406 | * @param pGVM The global (ring-0) VM structure.
|
---|
3407 | */
|
---|
3408 | static int vmmR0InitLoggers(PGVM pGVM)
|
---|
3409 | {
|
---|
3410 | /*
|
---|
3411 | * Invalidate the ring buffer (not really necessary).
|
---|
3412 | */
|
---|
3413 | for (size_t idx = 0; idx < RT_ELEMENTS(pGVM->vmmr0.s.LogFlusher.aRing); idx++)
|
---|
3414 | pGVM->vmmr0.s.LogFlusher.aRing[idx].u32 = UINT32_MAX >> 1; /* (all bits except fProcessing set) */
|
---|
3415 |
|
---|
3416 | /*
|
---|
3417 | * Create the spinlock and flusher event semaphore.
|
---|
3418 | */
|
---|
3419 | int rc = RTSpinlockCreate(&pGVM->vmmr0.s.LogFlusher.hSpinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "VM-Log-Flusher");
|
---|
3420 | if (RT_SUCCESS(rc))
|
---|
3421 | {
|
---|
3422 | rc = RTSemEventCreate(&pGVM->vmmr0.s.LogFlusher.hEvent);
|
---|
3423 | if (RT_SUCCESS(rc))
|
---|
3424 | {
|
---|
3425 | /*
|
---|
3426 | * Create the ring-0 release loggers.
|
---|
3427 | */
|
---|
3428 | rc = vmmR0InitLoggerSet(pGVM, VMMLOGGER_IDX_RELEASE, _4K,
|
---|
3429 | &pGVM->vmmr0.s.hMemObjReleaseLogger, &pGVM->vmmr0.s.hMapObjReleaseLogger);
|
---|
3430 | #ifdef LOG_ENABLED
|
---|
3431 | if (RT_SUCCESS(rc))
|
---|
3432 | {
|
---|
3433 | /*
|
---|
3434 | * Create debug loggers.
|
---|
3435 | */
|
---|
3436 | rc = vmmR0InitLoggerSet(pGVM, VMMLOGGER_IDX_REGULAR, _64K,
|
---|
3437 | &pGVM->vmmr0.s.hMemObjLogger, &pGVM->vmmr0.s.hMapObjLogger);
|
---|
3438 | }
|
---|
3439 | #endif
|
---|
3440 | }
|
---|
3441 | }
|
---|
3442 | return rc;
|
---|
3443 | }
|
---|
3444 |
|
---|
3445 |
|
---|
3446 | /**
|
---|
3447 | * Worker for VMMR0InitPerVMData that initializes all the logging related stuff.
|
---|
3448 | *
|
---|
3449 | * @param pGVM The global (ring-0) VM structure.
|
---|
3450 | */
|
---|
3451 | static void vmmR0CleanupLoggers(PGVM pGVM)
|
---|
3452 | {
|
---|
3453 | for (VMCPUID idCpu = 0; idCpu < pGVM->cCpus; idCpu++)
|
---|
3454 | {
|
---|
3455 | PGVMCPU pGVCpu = &pGVM->aCpus[idCpu];
|
---|
3456 | for (size_t iLogger = 0; iLogger < RT_ELEMENTS(pGVCpu->vmmr0.s.u.aLoggers); iLogger++)
|
---|
3457 | vmmR0TermLoggerOne(&pGVCpu->vmmr0.s.u.aLoggers[iLogger], &pGVCpu->vmm.s.u.aLoggers[iLogger]);
|
---|
3458 | }
|
---|
3459 |
|
---|
3460 | /*
|
---|
3461 | * Free logger buffer memory.
|
---|
3462 | */
|
---|
3463 | RTR0MemObjFree(pGVM->vmmr0.s.hMapObjReleaseLogger, false /*fFreeMappings*/);
|
---|
3464 | pGVM->vmmr0.s.hMapObjReleaseLogger = NIL_RTR0MEMOBJ;
|
---|
3465 | RTR0MemObjFree(pGVM->vmmr0.s.hMemObjReleaseLogger, true /*fFreeMappings*/);
|
---|
3466 | pGVM->vmmr0.s.hMemObjReleaseLogger = NIL_RTR0MEMOBJ;
|
---|
3467 |
|
---|
3468 | RTR0MemObjFree(pGVM->vmmr0.s.hMapObjLogger, false /*fFreeMappings*/);
|
---|
3469 | pGVM->vmmr0.s.hMapObjLogger = NIL_RTR0MEMOBJ;
|
---|
3470 | RTR0MemObjFree(pGVM->vmmr0.s.hMemObjLogger, true /*fFreeMappings*/);
|
---|
3471 | pGVM->vmmr0.s.hMemObjLogger = NIL_RTR0MEMOBJ;
|
---|
3472 |
|
---|
3473 | /*
|
---|
3474 | * Free log flusher related stuff.
|
---|
3475 | */
|
---|
3476 | RTSpinlockDestroy(pGVM->vmmr0.s.LogFlusher.hSpinlock);
|
---|
3477 | pGVM->vmmr0.s.LogFlusher.hSpinlock = NIL_RTSPINLOCK;
|
---|
3478 | RTSemEventDestroy(pGVM->vmmr0.s.LogFlusher.hEvent);
|
---|
3479 | pGVM->vmmr0.s.LogFlusher.hEvent = NIL_RTSEMEVENT;
|
---|
3480 | }
|
---|
3481 |
|
---|
3482 |
|
---|
3483 | /*********************************************************************************************************************************
|
---|
3484 | * Assertions *
|
---|
3485 | *********************************************************************************************************************************/
|
---|
3486 |
|
---|
3487 | /**
|
---|
3488 | * Installs a notification callback for ring-0 assertions.
|
---|
3489 | *
|
---|
3490 | * @param pVCpu The cross context virtual CPU structure.
|
---|
3491 | * @param pfnCallback Pointer to the callback.
|
---|
3492 | * @param pvUser The user argument.
|
---|
3493 | *
|
---|
3494 | * @return VBox status code.
|
---|
3495 | */
|
---|
3496 | VMMR0_INT_DECL(int) VMMR0AssertionSetNotification(PVMCPUCC pVCpu, PFNVMMR0ASSERTIONNOTIFICATION pfnCallback, RTR0PTR pvUser)
|
---|
3497 | {
|
---|
3498 | AssertPtrReturn(pVCpu, VERR_INVALID_POINTER);
|
---|
3499 | AssertPtrReturn(pfnCallback, VERR_INVALID_POINTER);
|
---|
3500 |
|
---|
3501 | if (!pVCpu->vmmr0.s.pfnAssertCallback)
|
---|
3502 | {
|
---|
3503 | pVCpu->vmmr0.s.pfnAssertCallback = pfnCallback;
|
---|
3504 | pVCpu->vmmr0.s.pvAssertCallbackUser = pvUser;
|
---|
3505 | return VINF_SUCCESS;
|
---|
3506 | }
|
---|
3507 | return VERR_ALREADY_EXISTS;
|
---|
3508 | }
|
---|
3509 |
|
---|
3510 |
|
---|
3511 | /**
|
---|
3512 | * Removes the ring-0 callback.
|
---|
3513 | *
|
---|
3514 | * @param pVCpu The cross context virtual CPU structure.
|
---|
3515 | */
|
---|
3516 | VMMR0_INT_DECL(void) VMMR0AssertionRemoveNotification(PVMCPUCC pVCpu)
|
---|
3517 | {
|
---|
3518 | pVCpu->vmmr0.s.pfnAssertCallback = NULL;
|
---|
3519 | pVCpu->vmmr0.s.pvAssertCallbackUser = NULL;
|
---|
3520 | }
|
---|
3521 |
|
---|
3522 |
|
---|
3523 | /**
|
---|
3524 | * Checks whether there is a ring-0 callback notification active.
|
---|
3525 | *
|
---|
3526 | * @param pVCpu The cross context virtual CPU structure.
|
---|
3527 | * @returns true if there the notification is active, false otherwise.
|
---|
3528 | */
|
---|
3529 | VMMR0_INT_DECL(bool) VMMR0AssertionIsNotificationSet(PVMCPUCC pVCpu)
|
---|
3530 | {
|
---|
3531 | return pVCpu->vmmr0.s.pfnAssertCallback != NULL;
|
---|
3532 | }
|
---|
3533 |
|
---|
3534 |
|
---|
3535 | /*
|
---|
3536 | * Jump back to ring-3 if we're the EMT and the longjmp is armed.
|
---|
3537 | *
|
---|
3538 | * @returns true if the breakpoint should be hit, false if it should be ignored.
|
---|
3539 | */
|
---|
3540 | DECLEXPORT(bool) RTCALL RTAssertShouldPanic(void)
|
---|
3541 | {
|
---|
3542 | #if 0
|
---|
3543 | return true;
|
---|
3544 | #else
|
---|
3545 | PVMCC pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
|
---|
3546 | if (pVM)
|
---|
3547 | {
|
---|
3548 | PVMCPUCC pVCpu = VMMGetCpu(pVM);
|
---|
3549 |
|
---|
3550 | if (pVCpu)
|
---|
3551 | {
|
---|
3552 | # ifdef RT_ARCH_X86
|
---|
3553 | if (pVCpu->vmmr0.s.AssertJmpBuf.eip)
|
---|
3554 | # else
|
---|
3555 | if (pVCpu->vmmr0.s.AssertJmpBuf.rip)
|
---|
3556 | # endif
|
---|
3557 | {
|
---|
3558 | if (pVCpu->vmmr0.s.pfnAssertCallback)
|
---|
3559 | pVCpu->vmmr0.s.pfnAssertCallback(pVCpu, pVCpu->vmmr0.s.pvAssertCallbackUser);
|
---|
3560 | int rc = vmmR0CallRing3LongJmp(&pVCpu->vmmr0.s.AssertJmpBuf, VERR_VMM_RING0_ASSERTION);
|
---|
3561 | return RT_FAILURE_NP(rc);
|
---|
3562 | }
|
---|
3563 | }
|
---|
3564 | }
|
---|
3565 | # ifdef RT_OS_LINUX
|
---|
3566 | return true;
|
---|
3567 | # else
|
---|
3568 | return false;
|
---|
3569 | # endif
|
---|
3570 | #endif
|
---|
3571 | }
|
---|
3572 |
|
---|
3573 |
|
---|
3574 | /*
|
---|
3575 | * Override this so we can push it up to ring-3.
|
---|
3576 | */
|
---|
3577 | DECLEXPORT(void) RTCALL RTAssertMsg1Weak(const char *pszExpr, unsigned uLine, const char *pszFile, const char *pszFunction)
|
---|
3578 | {
|
---|
3579 | /*
|
---|
3580 | * To host kernel log/whatever.
|
---|
3581 | */
|
---|
3582 | SUPR0Printf("!!R0-Assertion Failed!!\n"
|
---|
3583 | "Expression: %s\n"
|
---|
3584 | "Location : %s(%d) %s\n",
|
---|
3585 | pszExpr, pszFile, uLine, pszFunction);
|
---|
3586 |
|
---|
3587 | /*
|
---|
3588 | * To the log.
|
---|
3589 | */
|
---|
3590 | LogAlways(("\n!!R0-Assertion Failed!!\n"
|
---|
3591 | "Expression: %s\n"
|
---|
3592 | "Location : %s(%d) %s\n",
|
---|
3593 | pszExpr, pszFile, uLine, pszFunction));
|
---|
3594 |
|
---|
3595 | /*
|
---|
3596 | * To the global VMM buffer.
|
---|
3597 | */
|
---|
3598 | PVMCC pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
|
---|
3599 | if (pVM)
|
---|
3600 | RTStrPrintf(pVM->vmm.s.szRing0AssertMsg1, sizeof(pVM->vmm.s.szRing0AssertMsg1),
|
---|
3601 | "\n!!R0-Assertion Failed!!\n"
|
---|
3602 | "Expression: %.*s\n"
|
---|
3603 | "Location : %s(%d) %s\n",
|
---|
3604 | sizeof(pVM->vmm.s.szRing0AssertMsg1) / 4 * 3, pszExpr,
|
---|
3605 | pszFile, uLine, pszFunction);
|
---|
3606 |
|
---|
3607 | /*
|
---|
3608 | * Continue the normal way.
|
---|
3609 | */
|
---|
3610 | RTAssertMsg1(pszExpr, uLine, pszFile, pszFunction);
|
---|
3611 | }
|
---|
3612 |
|
---|
3613 |
|
---|
3614 | /**
|
---|
3615 | * Callback for RTLogFormatV which writes to the ring-3 log port.
|
---|
3616 | * See PFNLOGOUTPUT() for details.
|
---|
3617 | */
|
---|
3618 | static DECLCALLBACK(size_t) rtLogOutput(void *pv, const char *pachChars, size_t cbChars)
|
---|
3619 | {
|
---|
3620 | for (size_t i = 0; i < cbChars; i++)
|
---|
3621 | {
|
---|
3622 | LogAlways(("%c", pachChars[i])); NOREF(pachChars);
|
---|
3623 | }
|
---|
3624 |
|
---|
3625 | NOREF(pv);
|
---|
3626 | return cbChars;
|
---|
3627 | }
|
---|
3628 |
|
---|
3629 |
|
---|
3630 | /*
|
---|
3631 | * Override this so we can push it up to ring-3.
|
---|
3632 | */
|
---|
3633 | DECLEXPORT(void) RTCALL RTAssertMsg2WeakV(const char *pszFormat, va_list va)
|
---|
3634 | {
|
---|
3635 | va_list vaCopy;
|
---|
3636 |
|
---|
3637 | /*
|
---|
3638 | * Push the message to the loggers.
|
---|
3639 | */
|
---|
3640 | PRTLOGGER pLog = RTLogRelGetDefaultInstance();
|
---|
3641 | if (pLog)
|
---|
3642 | {
|
---|
3643 | va_copy(vaCopy, va);
|
---|
3644 | RTLogFormatV(rtLogOutput, pLog, pszFormat, vaCopy);
|
---|
3645 | va_end(vaCopy);
|
---|
3646 | }
|
---|
3647 | pLog = RTLogGetDefaultInstance(); /* Don't initialize it here... */
|
---|
3648 | if (pLog)
|
---|
3649 | {
|
---|
3650 | va_copy(vaCopy, va);
|
---|
3651 | RTLogFormatV(rtLogOutput, pLog, pszFormat, vaCopy);
|
---|
3652 | va_end(vaCopy);
|
---|
3653 | }
|
---|
3654 |
|
---|
3655 | /*
|
---|
3656 | * Push it to the global VMM buffer.
|
---|
3657 | */
|
---|
3658 | PVMCC pVM = GVMMR0GetVMByEMT(NIL_RTNATIVETHREAD);
|
---|
3659 | if (pVM)
|
---|
3660 | {
|
---|
3661 | va_copy(vaCopy, va);
|
---|
3662 | RTStrPrintfV(pVM->vmm.s.szRing0AssertMsg2, sizeof(pVM->vmm.s.szRing0AssertMsg2), pszFormat, vaCopy);
|
---|
3663 | va_end(vaCopy);
|
---|
3664 | }
|
---|
3665 |
|
---|
3666 | /*
|
---|
3667 | * Continue the normal way.
|
---|
3668 | */
|
---|
3669 | RTAssertMsg2V(pszFormat, va);
|
---|
3670 | }
|
---|
3671 |
|
---|