1 | /* $Id: VBoxGuest-win-pnp.cpp 68688 2017-09-06 18:18:29Z vboxsync $ */
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2 | /** @file
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3 | * VBoxGuest-win-pnp - Windows Plug'n'Play specifics.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2010-2016 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | */
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17 |
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18 |
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19 | /*********************************************************************************************************************************
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20 | * Header Files *
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21 | *********************************************************************************************************************************/
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22 | #include "VBoxGuest-win.h"
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23 | #include "VBoxGuestInternal.h"
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24 | #include <VBox/err.h>
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25 | #include <VBox/log.h>
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26 | #include <VBox/version.h>
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27 | #include <VBox/VBoxGuestLib.h>
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28 | #include <iprt/assert.h>
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29 |
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30 |
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31 | /*********************************************************************************************************************************
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32 | * Defined Constants And Macros *
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33 | *********************************************************************************************************************************/
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34 | RT_C_DECLS_BEGIN
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35 | static NTSTATUS vgdrvNtSendIrpSynchronously(PDEVICE_OBJECT pDevObj, PIRP pIrp, BOOLEAN fStrict);
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36 | static NTSTATUS vgdrvNtPnPIrpComplete(PDEVICE_OBJECT pDevObj, PIRP pIrp, PKEVENT pEvent);
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37 | static VOID vgdrvNtShowDeviceResources(PCM_PARTIAL_RESOURCE_LIST pResourceList);
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38 | RT_C_DECLS_END
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39 |
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40 | #ifdef ALLOC_PRAGMA
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41 | # pragma alloc_text(PAGE, vgdrvNtPnP)
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42 | # pragma alloc_text(PAGE, vgdrvNtPower)
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43 | # pragma alloc_text(PAGE, vgdrvNtSendIrpSynchronously)
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44 | # pragma alloc_text(PAGE, vgdrvNtShowDeviceResources)
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45 | #endif
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46 |
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47 |
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48 | /**
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49 | * Irp completion routine for PnP Irps we send.
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50 | *
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51 | * @returns NT status code.
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52 | * @param pDevObj Device object.
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53 | * @param pIrp Request packet.
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54 | * @param pEvent Semaphore.
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55 | */
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56 | static NTSTATUS vgdrvNtPnpIrpComplete(PDEVICE_OBJECT pDevObj, PIRP pIrp, PKEVENT pEvent)
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57 | {
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58 | RT_NOREF2(pDevObj, pIrp);
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59 | KeSetEvent(pEvent, 0, FALSE);
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60 | return STATUS_MORE_PROCESSING_REQUIRED;
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61 | }
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62 |
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63 |
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64 | /**
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65 | * Helper to send a PnP IRP and wait until it's done.
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66 | *
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67 | * @returns NT status code.
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68 | * @param pDevObj Device object.
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69 | * @param pIrp Request packet.
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70 | * @param fStrict When set, returns an error if the IRP gives an error.
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71 | */
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72 | static NTSTATUS vgdrvNtSendIrpSynchronously(PDEVICE_OBJECT pDevObj, PIRP pIrp, BOOLEAN fStrict)
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73 | {
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74 | KEVENT Event;
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75 |
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76 | KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
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77 |
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78 | IoCopyCurrentIrpStackLocationToNext(pIrp);
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79 | IoSetCompletionRoutine(pIrp, (PIO_COMPLETION_ROUTINE)vgdrvNtPnpIrpComplete, &Event, TRUE, TRUE, TRUE);
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80 |
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81 | NTSTATUS rc = IoCallDriver(pDevObj, pIrp);
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82 |
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83 | if (rc == STATUS_PENDING)
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84 | {
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85 | KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
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86 | rc = pIrp->IoStatus.Status;
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87 | }
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88 |
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89 | if ( !fStrict
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90 | && (rc == STATUS_NOT_SUPPORTED || rc == STATUS_INVALID_DEVICE_REQUEST))
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91 | {
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92 | rc = STATUS_SUCCESS;
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93 | }
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94 |
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95 | Log(("vgdrvNtSendIrpSynchronously: Returning 0x%x\n", rc));
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96 | return rc;
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97 | }
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98 |
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99 |
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100 | /**
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101 | * PnP Request handler.
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102 | *
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103 | * @param pDevObj Device object.
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104 | * @param pIrp Request packet.
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105 | */
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106 | NTSTATUS vgdrvNtPnP(PDEVICE_OBJECT pDevObj, PIRP pIrp)
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107 | {
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108 | PVBOXGUESTDEVEXTWIN pDevExt = (PVBOXGUESTDEVEXTWIN)pDevObj->DeviceExtension;
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109 | PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
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110 |
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111 | #ifdef LOG_ENABLED
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112 | static char *s_apszFnctName[] =
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113 | {
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114 | "IRP_MN_START_DEVICE",
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115 | "IRP_MN_QUERY_REMOVE_DEVICE",
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116 | "IRP_MN_REMOVE_DEVICE",
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117 | "IRP_MN_CANCEL_REMOVE_DEVICE",
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118 | "IRP_MN_STOP_DEVICE",
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119 | "IRP_MN_QUERY_STOP_DEVICE",
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120 | "IRP_MN_CANCEL_STOP_DEVICE",
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121 | "IRP_MN_QUERY_DEVICE_RELATIONS",
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122 | "IRP_MN_QUERY_INTERFACE",
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123 | "IRP_MN_QUERY_CAPABILITIES",
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124 | "IRP_MN_QUERY_RESOURCES",
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125 | "IRP_MN_QUERY_RESOURCE_REQUIREMENTS",
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126 | "IRP_MN_QUERY_DEVICE_TEXT",
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127 | "IRP_MN_FILTER_RESOURCE_REQUIREMENTS",
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128 | "IRP_MN_0xE",
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129 | "IRP_MN_READ_CONFIG",
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130 | "IRP_MN_WRITE_CONFIG",
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131 | "IRP_MN_EJECT",
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132 | "IRP_MN_SET_LOCK",
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133 | "IRP_MN_QUERY_ID",
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134 | "IRP_MN_QUERY_PNP_DEVICE_STATE",
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135 | "IRP_MN_QUERY_BUS_INFORMATION",
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136 | "IRP_MN_DEVICE_USAGE_NOTIFICATION",
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137 | "IRP_MN_SURPRISE_REMOVAL",
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138 | };
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139 | Log(("vgdrvNtPnP: MinorFunction: %s\n",
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140 | pStack->MinorFunction < RT_ELEMENTS(s_apszFnctName) ? s_apszFnctName[pStack->MinorFunction] : "Unknown"));
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141 | #endif
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142 |
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143 | NTSTATUS rc = STATUS_SUCCESS;
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144 | switch (pStack->MinorFunction)
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145 | {
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146 | case IRP_MN_START_DEVICE:
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147 | {
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148 | Log(("vgdrvNtPnP: START_DEVICE\n"));
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149 |
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150 | /* This must be handled first by the lower driver. */
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151 | rc = vgdrvNtSendIrpSynchronously(pDevExt->pNextLowerDriver, pIrp, TRUE);
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152 |
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153 | if ( NT_SUCCESS(rc)
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154 | && NT_SUCCESS(pIrp->IoStatus.Status))
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155 | {
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156 | Log(("vgdrvNtPnP: START_DEVICE: pStack->Parameters.StartDevice.AllocatedResources = %p\n",
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157 | pStack->Parameters.StartDevice.AllocatedResources));
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158 |
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159 | if (pStack->Parameters.StartDevice.AllocatedResources)
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160 | rc = vgdrvNtInit(pDevObj, pIrp);
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161 | else
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162 | {
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163 | Log(("vgdrvNtPnP: START_DEVICE: No resources, pDevExt = %p, nextLowerDriver = %p!\n",
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164 | pDevExt, pDevExt ? pDevExt->pNextLowerDriver : NULL));
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165 | rc = STATUS_UNSUCCESSFUL;
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166 | }
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167 | }
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168 |
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169 | if (NT_ERROR(rc))
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170 | {
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171 | Log(("vgdrvNtPnP: START_DEVICE: Error: rc = 0x%x\n", rc));
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172 |
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173 | /* Need to unmap memory in case of errors ... */
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174 | /** @todo r=bird: vgdrvNtInit maps it and is responsible for cleaning up its own friggin mess...
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175 | * Fix it instead of kind of working around things there!! */
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176 | vgdrvNtUnmapVMMDevMemory(pDevExt);
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177 | }
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178 | break;
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179 | }
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180 |
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181 | case IRP_MN_CANCEL_REMOVE_DEVICE:
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182 | {
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183 | Log(("vgdrvNtPnP: CANCEL_REMOVE_DEVICE\n"));
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184 |
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185 | /* This must be handled first by the lower driver. */
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186 | rc = vgdrvNtSendIrpSynchronously(pDevExt->pNextLowerDriver, pIrp, TRUE);
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187 |
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188 | if (NT_SUCCESS(rc) && pDevExt->enmDevState == VGDRVNTDEVSTATE_PENDINGREMOVE)
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189 | {
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190 | /* Return to the state prior to receiving the IRP_MN_QUERY_REMOVE_DEVICE request. */
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191 | pDevExt->enmDevState = pDevExt->enmPrevDevState;
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192 | }
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193 |
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194 | /* Complete the IRP. */
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195 | break;
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196 | }
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197 |
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198 | case IRP_MN_SURPRISE_REMOVAL:
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199 | {
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200 | Log(("vgdrvNtPnP: IRP_MN_SURPRISE_REMOVAL\n"));
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201 |
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202 | VBOXGUEST_UPDATE_DEVSTATE(pDevExt, VGDRVNTDEVSTATE_SURPRISEREMOVED);
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203 |
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204 | /* Do nothing here actually. Cleanup is done in IRP_MN_REMOVE_DEVICE.
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205 | * This request is not expected for VBoxGuest.
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206 | */
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207 | LogRel(("VBoxGuest: unexpected device removal\n"));
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208 |
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209 | /* Pass to the lower driver. */
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210 | pIrp->IoStatus.Status = STATUS_SUCCESS;
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211 |
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212 | IoSkipCurrentIrpStackLocation(pIrp);
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213 |
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214 | rc = IoCallDriver(pDevExt->pNextLowerDriver, pIrp);
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215 |
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216 | /* Do not complete the IRP. */
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217 | return rc;
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218 | }
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219 |
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220 | case IRP_MN_QUERY_REMOVE_DEVICE:
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221 | {
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222 | Log(("vgdrvNtPnP: QUERY_REMOVE_DEVICE\n"));
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223 |
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224 | #ifdef VBOX_REBOOT_ON_UNINSTALL
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225 | Log(("vgdrvNtPnP: QUERY_REMOVE_DEVICE: Device cannot be removed without a reboot.\n"));
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226 | rc = STATUS_UNSUCCESSFUL;
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227 | #endif
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228 |
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229 | if (NT_SUCCESS(rc))
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230 | {
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231 | VBOXGUEST_UPDATE_DEVSTATE(pDevExt, VGDRVNTDEVSTATE_PENDINGREMOVE);
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232 |
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233 | /* This IRP passed down to lower driver. */
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234 | pIrp->IoStatus.Status = STATUS_SUCCESS;
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235 |
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236 | IoSkipCurrentIrpStackLocation(pIrp);
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237 |
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238 | rc = IoCallDriver(pDevExt->pNextLowerDriver, pIrp);
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239 | Log(("vgdrvNtPnP: QUERY_REMOVE_DEVICE: Next lower driver replied rc = 0x%x\n", rc));
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240 |
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241 | /* we must not do anything the IRP after doing IoSkip & CallDriver
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242 | * since the driver below us will complete (or already have completed) the IRP.
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243 | * I.e. just return the status we got from IoCallDriver */
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244 | return rc;
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245 | }
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246 |
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247 | /* Complete the IRP on failure. */
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248 | break;
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249 | }
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250 |
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251 | case IRP_MN_REMOVE_DEVICE:
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252 | {
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253 | Log(("vgdrvNtPnP: REMOVE_DEVICE\n"));
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254 |
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255 | VBOXGUEST_UPDATE_DEVSTATE(pDevExt, VGDRVNTDEVSTATE_REMOVED);
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256 |
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257 | /* Free hardware resources. */
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258 | /** @todo this should actually free I/O ports, interrupts, etc.
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259 | * Update/bird: vgdrvNtCleanup actually does that... So, what's there to do? */
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260 | rc = vgdrvNtCleanup(pDevObj);
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261 | Log(("vgdrvNtPnP: REMOVE_DEVICE: vgdrvNtCleanup rc = 0x%08X\n", rc));
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262 |
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263 | /*
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264 | * We need to send the remove down the stack before we detach,
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265 | * but we don't need to wait for the completion of this operation
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266 | * (and to register a completion routine).
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267 | */
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268 | pIrp->IoStatus.Status = STATUS_SUCCESS;
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269 |
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270 | IoSkipCurrentIrpStackLocation(pIrp);
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271 |
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272 | rc = IoCallDriver(pDevExt->pNextLowerDriver, pIrp);
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273 | Log(("vgdrvNtPnP: REMOVE_DEVICE: Next lower driver replied rc = 0x%x\n", rc));
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274 |
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275 | IoDetachDevice(pDevExt->pNextLowerDriver);
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276 |
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277 | Log(("vgdrvNtPnP: REMOVE_DEVICE: Removing device ...\n"));
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278 |
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279 | /* Destroy device extension and clean up everything else. */
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280 | VGDrvCommonDeleteDevExt(&pDevExt->Core);
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281 |
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282 | /* Remove DOS device + symbolic link. */
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283 | UNICODE_STRING win32Name;
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284 | RtlInitUnicodeString(&win32Name, VBOXGUEST_DEVICE_NAME_DOS);
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285 | IoDeleteSymbolicLink(&win32Name);
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286 |
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287 | Log(("vgdrvNtPnP: REMOVE_DEVICE: Deleting device ...\n"));
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288 |
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289 | /* Last action: Delete our device! pDevObj is *not* failed
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290 | * anymore after this call! */
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291 | IoDeleteDevice(pDevObj);
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292 |
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293 | Log(("vgdrvNtPnP: REMOVE_DEVICE: Device removed!\n"));
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294 |
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295 | /* Propagating rc from IoCallDriver. */
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296 | return rc; /* Make sure that we don't do anything below here anymore! */
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297 | }
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298 |
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299 | case IRP_MN_CANCEL_STOP_DEVICE:
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300 | {
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301 | Log(("vgdrvNtPnP: CANCEL_STOP_DEVICE\n"));
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302 |
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303 | /* This must be handled first by the lower driver. */
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304 | rc = vgdrvNtSendIrpSynchronously(pDevExt->pNextLowerDriver, pIrp, TRUE);
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305 |
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306 | if (NT_SUCCESS(rc) && pDevExt->enmDevState == VGDRVNTDEVSTATE_PENDINGSTOP)
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307 | {
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308 | /* Return to the state prior to receiving the IRP_MN_QUERY_STOP_DEVICE request. */
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309 | pDevExt->enmDevState = pDevExt->enmPrevDevState;
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310 | }
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311 |
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312 | /* Complete the IRP. */
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313 | break;
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314 | }
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315 |
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316 | case IRP_MN_QUERY_STOP_DEVICE:
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317 | {
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318 | Log(("vgdrvNtPnP: QUERY_STOP_DEVICE\n"));
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319 |
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320 | #ifdef VBOX_REBOOT_ON_UNINSTALL
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321 | Log(("vgdrvNtPnP: QUERY_STOP_DEVICE: Device cannot be stopped without a reboot!\n"));
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322 | pIrp->IoStatus.Status = STATUS_UNSUCCESSFUL;
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323 | #endif
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324 |
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325 | if (NT_SUCCESS(rc))
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326 | {
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327 | VBOXGUEST_UPDATE_DEVSTATE(pDevExt, VGDRVNTDEVSTATE_PENDINGSTOP);
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328 |
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329 | /* This IRP passed down to lower driver. */
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330 | pIrp->IoStatus.Status = STATUS_SUCCESS;
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331 |
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332 | IoSkipCurrentIrpStackLocation(pIrp);
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333 |
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334 | rc = IoCallDriver(pDevExt->pNextLowerDriver, pIrp);
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335 | Log(("vgdrvNtPnP: QUERY_STOP_DEVICE: Next lower driver replied rc = 0x%x\n", rc));
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336 |
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337 | /* we must not do anything with the IRP after doing IoSkip & CallDriver
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338 | * since the driver below us will complete (or already have completed) the IRP.
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339 | * I.e. just return the status we got from IoCallDriver */
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340 | return rc;
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341 | }
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342 |
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343 | /* Complete the IRP on failure. */
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344 | break;
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345 | }
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346 |
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347 | case IRP_MN_STOP_DEVICE:
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348 | {
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349 | Log(("vgdrvNtPnP: STOP_DEVICE\n"));
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350 |
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351 | VBOXGUEST_UPDATE_DEVSTATE(pDevExt, VGDRVNTDEVSTATE_STOPPED);
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352 |
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353 | /* Free hardware resources. */
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354 | /** @todo this should actually free I/O ports, interrupts, etc.
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355 | * Update/bird: vgdrvNtCleanup actually does that... So, what's there to do? */
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356 | rc = vgdrvNtCleanup(pDevObj);
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357 | Log(("vgdrvNtPnP: STOP_DEVICE: cleaning up, rc = 0x%x\n", rc));
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358 |
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359 | /* Pass to the lower driver. */
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360 | pIrp->IoStatus.Status = STATUS_SUCCESS;
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361 |
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362 | IoSkipCurrentIrpStackLocation(pIrp);
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363 |
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364 | rc = IoCallDriver(pDevExt->pNextLowerDriver, pIrp);
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365 | Log(("vgdrvNtPnP: STOP_DEVICE: Next lower driver replied rc = 0x%x\n", rc));
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366 |
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367 | return rc;
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368 | }
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369 |
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370 | default:
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371 | {
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372 | IoSkipCurrentIrpStackLocation(pIrp);
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373 | rc = IoCallDriver(pDevExt->pNextLowerDriver, pIrp);
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374 | return rc;
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375 | }
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376 | }
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377 |
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378 | pIrp->IoStatus.Status = rc;
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379 | IoCompleteRequest(pIrp, IO_NO_INCREMENT);
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380 |
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381 | Log(("vgdrvNtPnP: Returning with rc = 0x%x\n", rc));
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382 | return rc;
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383 | }
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384 |
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385 |
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386 | /**
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387 | * Handle the power completion event.
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388 | *
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389 | * @returns NT status code.
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390 | * @param pDevObj Targetted device object.
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391 | * @param pIrp IO request packet.
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392 | * @param pContext Context value passed to IoSetCompletionRoutine in VBoxGuestPower.
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393 | */
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394 | static NTSTATUS vgdrvNtPowerComplete(IN PDEVICE_OBJECT pDevObj, IN PIRP pIrp, IN PVOID pContext)
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395 | {
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396 | #ifdef VBOX_STRICT
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397 | RT_NOREF1(pDevObj);
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398 | PVBOXGUESTDEVEXTWIN pDevExt = (PVBOXGUESTDEVEXTWIN)pContext;
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399 | PIO_STACK_LOCATION pIrpSp = IoGetCurrentIrpStackLocation(pIrp);
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400 |
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401 | Assert(pDevExt);
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402 |
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403 | if (pIrpSp)
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404 | {
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405 | Assert(pIrpSp->MajorFunction == IRP_MJ_POWER);
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406 | if (NT_SUCCESS(pIrp->IoStatus.Status))
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407 | {
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408 | switch (pIrpSp->MinorFunction)
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409 | {
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410 | case IRP_MN_SET_POWER:
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411 | switch (pIrpSp->Parameters.Power.Type)
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412 | {
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413 | case DevicePowerState:
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414 | switch (pIrpSp->Parameters.Power.State.DeviceState)
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415 | {
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416 | case PowerDeviceD0:
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417 | break;
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418 | default: /* Shut up MSC */ break;
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419 | }
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420 | break;
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421 | default: /* Shut up MSC */ break;
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422 | }
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423 | break;
|
---|
424 | }
|
---|
425 | }
|
---|
426 | }
|
---|
427 | #else
|
---|
428 | RT_NOREF3(pDevObj, pIrp, pContext);
|
---|
429 | #endif
|
---|
430 |
|
---|
431 | return STATUS_SUCCESS;
|
---|
432 | }
|
---|
433 |
|
---|
434 |
|
---|
435 | /**
|
---|
436 | * Handle the Power requests.
|
---|
437 | *
|
---|
438 | * @returns NT status code
|
---|
439 | * @param pDevObj device object
|
---|
440 | * @param pIrp IRP
|
---|
441 | */
|
---|
442 | NTSTATUS vgdrvNtPower(PDEVICE_OBJECT pDevObj, PIRP pIrp)
|
---|
443 | {
|
---|
444 | PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
|
---|
445 | PVBOXGUESTDEVEXTWIN pDevExt = (PVBOXGUESTDEVEXTWIN)pDevObj->DeviceExtension;
|
---|
446 | POWER_STATE_TYPE enmPowerType = pStack->Parameters.Power.Type;
|
---|
447 | POWER_STATE PowerState = pStack->Parameters.Power.State;
|
---|
448 | POWER_ACTION enmPowerAction = pStack->Parameters.Power.ShutdownType;
|
---|
449 |
|
---|
450 | Log(("vgdrvNtPower:\n"));
|
---|
451 |
|
---|
452 | switch (pStack->MinorFunction)
|
---|
453 | {
|
---|
454 | case IRP_MN_SET_POWER:
|
---|
455 | {
|
---|
456 | Log(("vgdrvNtPower: IRP_MN_SET_POWER, type= %d\n", enmPowerType));
|
---|
457 | switch (enmPowerType)
|
---|
458 | {
|
---|
459 | case SystemPowerState:
|
---|
460 | {
|
---|
461 | Log(("vgdrvNtPower: SystemPowerState, action = %d, state = %d/%d\n",
|
---|
462 | enmPowerAction, PowerState.SystemState, PowerState.DeviceState));
|
---|
463 |
|
---|
464 | switch (enmPowerAction)
|
---|
465 | {
|
---|
466 | case PowerActionSleep:
|
---|
467 |
|
---|
468 | /* System now is in a working state. */
|
---|
469 | if (PowerState.SystemState == PowerSystemWorking)
|
---|
470 | {
|
---|
471 | if ( pDevExt
|
---|
472 | && pDevExt->LastSystemPowerAction == PowerActionHibernate)
|
---|
473 | {
|
---|
474 | Log(("vgdrvNtPower: Returning from hibernation!\n"));
|
---|
475 | int rc = VGDrvCommonReinitDevExtAfterHibernation(&pDevExt->Core,
|
---|
476 | vgdrvNtVersionToOSType(g_enmVGDrvNtVer));
|
---|
477 | if (RT_FAILURE(rc))
|
---|
478 | Log(("vgdrvNtPower: Cannot re-init VMMDev chain, rc = %d!\n", rc));
|
---|
479 | }
|
---|
480 | }
|
---|
481 | break;
|
---|
482 |
|
---|
483 | case PowerActionShutdownReset:
|
---|
484 | {
|
---|
485 | Log(("vgdrvNtPower: Power action reset!\n"));
|
---|
486 |
|
---|
487 | /* Tell the VMM that we no longer support mouse pointer integration. */
|
---|
488 | VMMDevReqMouseStatus *pReq = NULL;
|
---|
489 | int vrc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof (VMMDevReqMouseStatus),
|
---|
490 | VMMDevReq_SetMouseStatus);
|
---|
491 | if (RT_SUCCESS(vrc))
|
---|
492 | {
|
---|
493 | pReq->mouseFeatures = 0;
|
---|
494 | pReq->pointerXPos = 0;
|
---|
495 | pReq->pointerYPos = 0;
|
---|
496 |
|
---|
497 | vrc = VbglR0GRPerform(&pReq->header);
|
---|
498 | if (RT_FAILURE(vrc))
|
---|
499 | {
|
---|
500 | Log(("vgdrvNtPower: error communicating new power status to VMMDev. vrc = %Rrc\n", vrc));
|
---|
501 | }
|
---|
502 |
|
---|
503 | VbglR0GRFree(&pReq->header);
|
---|
504 | }
|
---|
505 |
|
---|
506 | /* Don't do any cleanup here; there might be still coming in some IOCtls after we got this
|
---|
507 | * power action and would assert/crash when we already cleaned up all the stuff! */
|
---|
508 | break;
|
---|
509 | }
|
---|
510 |
|
---|
511 | case PowerActionShutdown:
|
---|
512 | case PowerActionShutdownOff:
|
---|
513 | {
|
---|
514 | Log(("vgdrvNtPower: Power action shutdown!\n"));
|
---|
515 | if (PowerState.SystemState >= PowerSystemShutdown)
|
---|
516 | {
|
---|
517 | Log(("vgdrvNtPower: Telling the VMMDev to close the VM ...\n"));
|
---|
518 |
|
---|
519 | VMMDevPowerStateRequest *pReq = pDevExt->pPowerStateRequest;
|
---|
520 | int vrc = VERR_NOT_IMPLEMENTED;
|
---|
521 | if (pReq)
|
---|
522 | {
|
---|
523 | pReq->header.requestType = VMMDevReq_SetPowerStatus;
|
---|
524 | pReq->powerState = VMMDevPowerState_PowerOff;
|
---|
525 |
|
---|
526 | vrc = VbglR0GRPerform(&pReq->header);
|
---|
527 | }
|
---|
528 | if (RT_FAILURE(vrc))
|
---|
529 | Log(("vgdrvNtPower: Error communicating new power status to VMMDev. vrc = %Rrc\n", vrc));
|
---|
530 |
|
---|
531 | /* No need to do cleanup here; at this point we should've been
|
---|
532 | * turned off by VMMDev already! */
|
---|
533 | }
|
---|
534 | break;
|
---|
535 | }
|
---|
536 |
|
---|
537 | case PowerActionHibernate:
|
---|
538 |
|
---|
539 | Log(("vgdrvNtPower: Power action hibernate!\n"));
|
---|
540 | break;
|
---|
541 |
|
---|
542 | case PowerActionWarmEject:
|
---|
543 | Log(("vgdrvNtPower: PowerActionWarmEject!\n"));
|
---|
544 | break;
|
---|
545 |
|
---|
546 | default:
|
---|
547 | Log(("vgdrvNtPower: %d\n", enmPowerAction));
|
---|
548 | break;
|
---|
549 | }
|
---|
550 |
|
---|
551 | /*
|
---|
552 | * Save the current system power action for later use.
|
---|
553 | * This becomes handy when we return from hibernation for example.
|
---|
554 | */
|
---|
555 | if (pDevExt)
|
---|
556 | pDevExt->LastSystemPowerAction = enmPowerAction;
|
---|
557 |
|
---|
558 | break;
|
---|
559 | }
|
---|
560 | default:
|
---|
561 | break;
|
---|
562 | }
|
---|
563 | break;
|
---|
564 | }
|
---|
565 | default:
|
---|
566 | break;
|
---|
567 | }
|
---|
568 |
|
---|
569 | /*
|
---|
570 | * Whether we are completing or relaying this power IRP,
|
---|
571 | * we must call PoStartNextPowerIrp.
|
---|
572 | */
|
---|
573 | PoStartNextPowerIrp(pIrp);
|
---|
574 |
|
---|
575 | /*
|
---|
576 | * Send the IRP down the driver stack, using PoCallDriver
|
---|
577 | * (not IoCallDriver, as for non-power irps).
|
---|
578 | */
|
---|
579 | IoCopyCurrentIrpStackLocationToNext(pIrp);
|
---|
580 | IoSetCompletionRoutine(pIrp,
|
---|
581 | vgdrvNtPowerComplete,
|
---|
582 | (PVOID)pDevExt,
|
---|
583 | TRUE,
|
---|
584 | TRUE,
|
---|
585 | TRUE);
|
---|
586 | return PoCallDriver(pDevExt->pNextLowerDriver, pIrp);
|
---|
587 | }
|
---|
588 |
|
---|