1 | /* $Id: VBoxGuest.cpp 83142 2020-02-24 19:24:26Z vboxsync $ */
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2 | /** @file
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3 | * VBoxGuest - Guest Additions Driver, Common Code.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2007-2020 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | */
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26 |
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27 | /** @page pg_vbdrv VBoxGuest
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28 | *
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29 | * VBoxGuest is the device driver for VMMDev.
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30 | *
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31 | * The device driver is shipped as part of the guest additions. It has roots in
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32 | * the host VMM support driver (usually known as VBoxDrv), so fixes in platform
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33 | * specific code may apply to both drivers.
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34 | *
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35 | * The common code lives in VBoxGuest.cpp and is compiled both as C++ and C.
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36 | * The VBoxGuest.cpp source file shall not contain platform specific code,
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37 | * though it must occationally do a few \#ifdef RT_OS_XXX tests to cater for
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38 | * platform differences. Though, in those cases, it is common that more than
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39 | * one platform needs special handling.
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40 | *
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41 | * On most platforms the device driver should create two device nodes, one for
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42 | * full (unrestricted) access to the feature set, and one which only provides a
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43 | * restrict set of functions. These are generally referred to as 'vboxguest'
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44 | * and 'vboxuser' respectively. Currently, this two device approach is only
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45 | * implemented on Linux!
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46 | *
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47 | */
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48 |
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49 |
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50 | /*********************************************************************************************************************************
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51 | * Header Files *
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52 | *********************************************************************************************************************************/
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53 | #define LOG_GROUP LOG_GROUP_DEFAULT
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54 | #include "VBoxGuestInternal.h"
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55 | #include <VBox/VMMDev.h> /* for VMMDEV_RAM_SIZE */
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56 | #include <VBox/err.h>
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57 | #include <VBox/log.h>
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58 | #include <VBox/HostServices/GuestPropertySvc.h>
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59 | #include <iprt/ctype.h>
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60 | #include <iprt/mem.h>
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61 | #include <iprt/time.h>
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62 | #include <iprt/memobj.h>
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63 | #include <iprt/asm.h>
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64 | #include <iprt/asm-amd64-x86.h>
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65 | #include <iprt/string.h>
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66 | #include <iprt/process.h>
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67 | #include <iprt/assert.h>
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68 | #include <iprt/param.h>
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69 | #include <iprt/timer.h>
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70 | #ifdef VBOX_WITH_HGCM
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71 | # include <iprt/thread.h>
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72 | #endif
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73 | #include "version-generated.h"
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74 | #if defined(RT_OS_LINUX) || defined(RT_OS_FREEBSD)
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75 | # include "revision-generated.h"
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76 | #endif
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77 | #if defined(RT_OS_SOLARIS) || defined(RT_OS_DARWIN)
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78 | # include <iprt/rand.h>
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79 | #endif
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80 |
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81 |
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82 | /*********************************************************************************************************************************
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83 | * Defined Constants And Macros *
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84 | *********************************************************************************************************************************/
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85 | #define VBOXGUEST_ACQUIRE_STYLE_EVENTS (VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST | VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST)
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86 |
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87 |
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88 | /*********************************************************************************************************************************
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89 | * Internal Functions *
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90 | *********************************************************************************************************************************/
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91 | #ifdef VBOX_WITH_HGCM
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92 | static DECLCALLBACK(int) vgdrvHgcmAsyncWaitCallback(VMMDevHGCMRequestHeader *pHdrNonVolatile, void *pvUser, uint32_t u32User);
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93 | #endif
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94 | static int vgdrvIoCtl_CancelAllWaitEvents(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession);
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95 | static void vgdrvBitUsageTrackerClear(PVBOXGUESTBITUSAGETRACER pTracker);
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96 | static uint32_t vgdrvGetAllowedEventMaskForSession(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession);
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97 | static int vgdrvResetEventFilterOnHost(PVBOXGUESTDEVEXT pDevExt, uint32_t fFixedEvents);
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98 | static int vgdrvResetMouseStatusOnHost(PVBOXGUESTDEVEXT pDevExt);
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99 | static int vgdrvResetCapabilitiesOnHost(PVBOXGUESTDEVEXT pDevExt);
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100 | static int vgdrvSetSessionEventFilter(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
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101 | uint32_t fOrMask, uint32_t fNotMask, bool fSessionTermination);
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102 | static int vgdrvSetSessionMouseStatus(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
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103 | uint32_t fOrMask, uint32_t fNotMask, bool fSessionTermination);
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104 | static int vgdrvSetSessionCapabilities(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
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105 | uint32_t fOrMask, uint32_t fNoMask,
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106 | uint32_t *pfSessionCaps, uint32_t *pfGlobalCaps, bool fSessionTermination);
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107 | static int vgdrvAcquireSessionCapabilities(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
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108 | uint32_t fOrMask, uint32_t fNotMask, uint32_t fFlags, bool fSessionTermination);
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109 | static int vgdrvDispatchEventsLocked(PVBOXGUESTDEVEXT pDevExt, uint32_t fEvents);
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110 |
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111 |
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112 | /*********************************************************************************************************************************
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113 | * Global Variables *
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114 | *********************************************************************************************************************************/
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115 | static const uint32_t g_cbChangeMemBalloonReq = RT_UOFFSETOF(VMMDevChangeMemBalloon, aPhysPage[VMMDEV_MEMORY_BALLOON_CHUNK_PAGES]);
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116 |
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117 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS)
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118 | /**
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119 | * Drag in the rest of IRPT since we share it with the
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120 | * rest of the kernel modules on Solaris.
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121 | */
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122 | PFNRT g_apfnVBoxGuestIPRTDeps[] =
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123 | {
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124 | /* VirtioNet */
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125 | (PFNRT)RTRandBytes,
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126 | /* RTSemMutex* */
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127 | (PFNRT)RTSemMutexCreate,
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128 | (PFNRT)RTSemMutexDestroy,
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129 | (PFNRT)RTSemMutexRequest,
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130 | (PFNRT)RTSemMutexRequestNoResume,
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131 | (PFNRT)RTSemMutexRequestDebug,
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132 | (PFNRT)RTSemMutexRequestNoResumeDebug,
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133 | (PFNRT)RTSemMutexRelease,
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134 | (PFNRT)RTSemMutexIsOwned,
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135 | NULL
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136 | };
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137 | #endif /* RT_OS_DARWIN || RT_OS_SOLARIS */
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138 |
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139 |
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140 | /**
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141 | * Reserves memory in which the VMM can relocate any guest mappings
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142 | * that are floating around.
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143 | *
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144 | * This operation is a little bit tricky since the VMM might not accept
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145 | * just any address because of address clashes between the three contexts
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146 | * it operates in, so use a small stack to perform this operation.
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147 | *
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148 | * @returns VBox status code (ignored).
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149 | * @param pDevExt The device extension.
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150 | */
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151 | static int vgdrvInitFixateGuestMappings(PVBOXGUESTDEVEXT pDevExt)
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152 | {
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153 | /*
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154 | * Query the required space.
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155 | */
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156 | VMMDevReqHypervisorInfo *pReq;
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157 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(VMMDevReqHypervisorInfo), VMMDevReq_GetHypervisorInfo);
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158 | if (RT_FAILURE(rc))
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159 | return rc;
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160 | pReq->hypervisorStart = 0;
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161 | pReq->hypervisorSize = 0;
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162 | rc = VbglR0GRPerform(&pReq->header);
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163 | if (RT_FAILURE(rc)) /* this shouldn't happen! */
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164 | {
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165 | VbglR0GRFree(&pReq->header);
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166 | return rc;
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167 | }
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168 |
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169 | /*
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170 | * The VMM will report back if there is nothing it wants to map, like for
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171 | * instance in VT-x and AMD-V mode.
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172 | */
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173 | if (pReq->hypervisorSize == 0)
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174 | Log(("vgdrvInitFixateGuestMappings: nothing to do\n"));
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175 | else
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176 | {
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177 | /*
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178 | * We have to try several times since the host can be picky
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179 | * about certain addresses.
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180 | */
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181 | RTR0MEMOBJ hFictive = NIL_RTR0MEMOBJ;
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182 | uint32_t cbHypervisor = pReq->hypervisorSize;
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183 | RTR0MEMOBJ ahTries[5];
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184 | uint32_t iTry;
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185 | bool fBitched = false;
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186 | Log(("vgdrvInitFixateGuestMappings: cbHypervisor=%#x\n", cbHypervisor));
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187 | for (iTry = 0; iTry < RT_ELEMENTS(ahTries); iTry++)
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188 | {
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189 | /*
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190 | * Reserve space, or if that isn't supported, create a object for
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191 | * some fictive physical memory and map that in to kernel space.
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192 | *
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193 | * To make the code a bit uglier, most systems cannot help with
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194 | * 4MB alignment, so we have to deal with that in addition to
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195 | * having two ways of getting the memory.
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196 | */
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197 | uint32_t uAlignment = _4M;
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198 | RTR0MEMOBJ hObj;
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199 | rc = RTR0MemObjReserveKernel(&hObj, (void *)-1, RT_ALIGN_32(cbHypervisor, _4M), uAlignment);
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200 | if (rc == VERR_NOT_SUPPORTED)
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201 | {
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202 | uAlignment = PAGE_SIZE;
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203 | rc = RTR0MemObjReserveKernel(&hObj, (void *)-1, RT_ALIGN_32(cbHypervisor, _4M) + _4M, uAlignment);
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204 | }
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205 | /*
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206 | * If both RTR0MemObjReserveKernel calls above failed because either not supported or
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207 | * not implemented at all at the current platform, try to map the memory object into the
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208 | * virtual kernel space.
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209 | */
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210 | if (rc == VERR_NOT_SUPPORTED)
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211 | {
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212 | if (hFictive == NIL_RTR0MEMOBJ)
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213 | {
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214 | rc = RTR0MemObjEnterPhys(&hObj, VBOXGUEST_HYPERVISOR_PHYSICAL_START, cbHypervisor + _4M, RTMEM_CACHE_POLICY_DONT_CARE);
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215 | if (RT_FAILURE(rc))
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216 | break;
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217 | hFictive = hObj;
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218 | }
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219 | uAlignment = _4M;
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220 | rc = RTR0MemObjMapKernel(&hObj, hFictive, (void *)-1, uAlignment, RTMEM_PROT_READ | RTMEM_PROT_WRITE);
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221 | if (rc == VERR_NOT_SUPPORTED)
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222 | {
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223 | uAlignment = PAGE_SIZE;
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224 | rc = RTR0MemObjMapKernel(&hObj, hFictive, (void *)-1, uAlignment, RTMEM_PROT_READ | RTMEM_PROT_WRITE);
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225 | }
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226 | }
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227 | if (RT_FAILURE(rc))
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228 | {
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229 | LogRel(("VBoxGuest: Failed to reserve memory for the hypervisor: rc=%Rrc (cbHypervisor=%#x uAlignment=%#x iTry=%u)\n",
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230 | rc, cbHypervisor, uAlignment, iTry));
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231 | fBitched = true;
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232 | break;
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233 | }
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234 |
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235 | /*
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236 | * Try set it.
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237 | */
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238 | pReq->header.requestType = VMMDevReq_SetHypervisorInfo;
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239 | pReq->header.rc = VERR_INTERNAL_ERROR;
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240 | pReq->hypervisorSize = cbHypervisor;
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241 | pReq->hypervisorStart = (RTGCPTR32)(uintptr_t)RTR0MemObjAddress(hObj);
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242 | if ( uAlignment == PAGE_SIZE
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243 | && pReq->hypervisorStart & (_4M - 1))
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244 | pReq->hypervisorStart = RT_ALIGN_32(pReq->hypervisorStart, _4M);
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245 | AssertMsg(RT_ALIGN_32(pReq->hypervisorStart, _4M) == pReq->hypervisorStart, ("%#x\n", pReq->hypervisorStart));
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246 |
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247 | rc = VbglR0GRPerform(&pReq->header);
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248 | if (RT_SUCCESS(rc))
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249 | {
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250 | pDevExt->hGuestMappings = hFictive != NIL_RTR0MEMOBJ ? hFictive : hObj;
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251 | Log(("VBoxGuest: %p LB %#x; uAlignment=%#x iTry=%u hGuestMappings=%p (%s)\n",
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252 | RTR0MemObjAddress(pDevExt->hGuestMappings),
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253 | RTR0MemObjSize(pDevExt->hGuestMappings),
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254 | uAlignment, iTry, pDevExt->hGuestMappings, hFictive != NIL_RTR0PTR ? "fictive" : "reservation"));
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255 | break;
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256 | }
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257 | ahTries[iTry] = hObj;
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258 | }
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259 |
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260 | /*
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261 | * Cleanup failed attempts.
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262 | */
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263 | while (iTry-- > 0)
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264 | RTR0MemObjFree(ahTries[iTry], false /* fFreeMappings */);
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265 | if ( RT_FAILURE(rc)
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266 | && hFictive != NIL_RTR0PTR)
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267 | RTR0MemObjFree(hFictive, false /* fFreeMappings */);
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268 | if (RT_FAILURE(rc) && !fBitched)
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269 | LogRel(("VBoxGuest: Warning: failed to reserve %#d of memory for guest mappings.\n", cbHypervisor));
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270 | }
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271 | VbglR0GRFree(&pReq->header);
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272 |
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273 | /*
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274 | * We ignore failed attempts for now.
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275 | */
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276 | return VINF_SUCCESS;
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277 | }
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278 |
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279 |
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280 | /**
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281 | * Undo what vgdrvInitFixateGuestMappings did.
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282 | *
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283 | * @param pDevExt The device extension.
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284 | */
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285 | static void vgdrvTermUnfixGuestMappings(PVBOXGUESTDEVEXT pDevExt)
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286 | {
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287 | if (pDevExt->hGuestMappings != NIL_RTR0PTR)
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288 | {
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289 | /*
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290 | * Tell the host that we're going to free the memory we reserved for
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291 | * it, the free it up. (Leak the memory if anything goes wrong here.)
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292 | */
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293 | VMMDevReqHypervisorInfo *pReq;
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294 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(VMMDevReqHypervisorInfo), VMMDevReq_SetHypervisorInfo);
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295 | if (RT_SUCCESS(rc))
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296 | {
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297 | pReq->hypervisorStart = 0;
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298 | pReq->hypervisorSize = 0;
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299 | rc = VbglR0GRPerform(&pReq->header);
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300 | VbglR0GRFree(&pReq->header);
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301 | }
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302 | if (RT_SUCCESS(rc))
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303 | {
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304 | rc = RTR0MemObjFree(pDevExt->hGuestMappings, true /* fFreeMappings */);
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305 | AssertRC(rc);
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306 | }
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307 | else
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308 | LogRel(("vgdrvTermUnfixGuestMappings: Failed to unfix the guest mappings! rc=%Rrc\n", rc));
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309 |
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310 | pDevExt->hGuestMappings = NIL_RTR0MEMOBJ;
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311 | }
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312 | }
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313 |
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314 |
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315 |
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316 | /**
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317 | * Report the guest information to the host.
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318 | *
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319 | * @returns IPRT status code.
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320 | * @param enmOSType The OS type to report.
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321 | */
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322 | static int vgdrvReportGuestInfo(VBOXOSTYPE enmOSType)
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323 | {
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324 | /*
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325 | * Allocate and fill in the two guest info reports.
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326 | */
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327 | VMMDevReportGuestInfo2 *pReqInfo2 = NULL;
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328 | VMMDevReportGuestInfo *pReqInfo1 = NULL;
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329 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReqInfo2, sizeof (VMMDevReportGuestInfo2), VMMDevReq_ReportGuestInfo2);
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330 | Log(("vgdrvReportGuestInfo: VbglR0GRAlloc VMMDevReportGuestInfo2 completed with rc=%Rrc\n", rc));
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331 | if (RT_SUCCESS(rc))
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332 | {
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333 | pReqInfo2->guestInfo.additionsMajor = VBOX_VERSION_MAJOR;
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334 | pReqInfo2->guestInfo.additionsMinor = VBOX_VERSION_MINOR;
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335 | pReqInfo2->guestInfo.additionsBuild = VBOX_VERSION_BUILD;
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336 | pReqInfo2->guestInfo.additionsRevision = VBOX_SVN_REV;
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337 | pReqInfo2->guestInfo.additionsFeatures = VBOXGSTINFO2_F_REQUESTOR_INFO;
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338 | RTStrCopy(pReqInfo2->guestInfo.szName, sizeof(pReqInfo2->guestInfo.szName), VBOX_VERSION_STRING);
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339 |
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340 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReqInfo1, sizeof (VMMDevReportGuestInfo), VMMDevReq_ReportGuestInfo);
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341 | Log(("vgdrvReportGuestInfo: VbglR0GRAlloc VMMDevReportGuestInfo completed with rc=%Rrc\n", rc));
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342 | if (RT_SUCCESS(rc))
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343 | {
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344 | pReqInfo1->guestInfo.interfaceVersion = VMMDEV_VERSION;
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345 | pReqInfo1->guestInfo.osType = enmOSType;
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346 |
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347 | /*
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348 | * There are two protocols here:
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349 | * 1. Info2 + Info1. Supported by >=3.2.51.
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350 | * 2. Info1 and optionally Info2. The old protocol.
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351 | *
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352 | * We try protocol 1 first. It will fail with VERR_NOT_SUPPORTED
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353 | * if not supported by the VMMDev (message ordering requirement).
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354 | */
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355 | rc = VbglR0GRPerform(&pReqInfo2->header);
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356 | Log(("vgdrvReportGuestInfo: VbglR0GRPerform VMMDevReportGuestInfo2 completed with rc=%Rrc\n", rc));
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357 | if (RT_SUCCESS(rc))
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358 | {
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359 | rc = VbglR0GRPerform(&pReqInfo1->header);
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360 | Log(("vgdrvReportGuestInfo: VbglR0GRPerform VMMDevReportGuestInfo completed with rc=%Rrc\n", rc));
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361 | }
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362 | else if ( rc == VERR_NOT_SUPPORTED
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363 | || rc == VERR_NOT_IMPLEMENTED)
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364 | {
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365 | rc = VbglR0GRPerform(&pReqInfo1->header);
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366 | Log(("vgdrvReportGuestInfo: VbglR0GRPerform VMMDevReportGuestInfo completed with rc=%Rrc\n", rc));
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367 | if (RT_SUCCESS(rc))
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368 | {
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369 | rc = VbglR0GRPerform(&pReqInfo2->header);
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370 | Log(("vgdrvReportGuestInfo: VbglR0GRPerform VMMDevReportGuestInfo2 completed with rc=%Rrc\n", rc));
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371 | if (rc == VERR_NOT_IMPLEMENTED)
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372 | rc = VINF_SUCCESS;
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373 | }
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374 | }
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375 | VbglR0GRFree(&pReqInfo1->header);
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376 | }
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377 | VbglR0GRFree(&pReqInfo2->header);
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378 | }
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379 |
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380 | return rc;
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381 | }
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382 |
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383 |
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384 | /**
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385 | * Report the guest driver status to the host.
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386 | *
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387 | * @returns IPRT status code.
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388 | * @param fActive Flag whether the driver is now active or not.
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389 | */
|
---|
390 | static int vgdrvReportDriverStatus(bool fActive)
|
---|
391 | {
|
---|
392 | /*
|
---|
393 | * Report guest status of the VBox driver to the host.
|
---|
394 | */
|
---|
395 | VMMDevReportGuestStatus *pReq2 = NULL;
|
---|
396 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq2, sizeof(*pReq2), VMMDevReq_ReportGuestStatus);
|
---|
397 | Log(("vgdrvReportDriverStatus: VbglR0GRAlloc VMMDevReportGuestStatus completed with rc=%Rrc\n", rc));
|
---|
398 | if (RT_SUCCESS(rc))
|
---|
399 | {
|
---|
400 | pReq2->guestStatus.facility = VBoxGuestFacilityType_VBoxGuestDriver;
|
---|
401 | pReq2->guestStatus.status = fActive ?
|
---|
402 | VBoxGuestFacilityStatus_Active
|
---|
403 | : VBoxGuestFacilityStatus_Inactive;
|
---|
404 | pReq2->guestStatus.flags = 0;
|
---|
405 | rc = VbglR0GRPerform(&pReq2->header);
|
---|
406 | Log(("vgdrvReportDriverStatus: VbglR0GRPerform VMMDevReportGuestStatus completed with fActive=%d, rc=%Rrc\n",
|
---|
407 | fActive ? 1 : 0, rc));
|
---|
408 | if (rc == VERR_NOT_IMPLEMENTED) /* Compatibility with older hosts. */
|
---|
409 | rc = VINF_SUCCESS;
|
---|
410 | VbglR0GRFree(&pReq2->header);
|
---|
411 | }
|
---|
412 |
|
---|
413 | return rc;
|
---|
414 | }
|
---|
415 |
|
---|
416 |
|
---|
417 | /** @name Memory Ballooning
|
---|
418 | * @{
|
---|
419 | */
|
---|
420 |
|
---|
421 | /**
|
---|
422 | * Inflate the balloon by one chunk represented by an R0 memory object.
|
---|
423 | *
|
---|
424 | * The caller owns the balloon mutex.
|
---|
425 | *
|
---|
426 | * @returns IPRT status code.
|
---|
427 | * @param pMemObj Pointer to the R0 memory object.
|
---|
428 | * @param pReq The pre-allocated request for performing the VMMDev call.
|
---|
429 | */
|
---|
430 | static int vgdrvBalloonInflate(PRTR0MEMOBJ pMemObj, VMMDevChangeMemBalloon *pReq)
|
---|
431 | {
|
---|
432 | uint32_t iPage;
|
---|
433 | int rc;
|
---|
434 |
|
---|
435 | for (iPage = 0; iPage < VMMDEV_MEMORY_BALLOON_CHUNK_PAGES; iPage++)
|
---|
436 | {
|
---|
437 | RTHCPHYS phys = RTR0MemObjGetPagePhysAddr(*pMemObj, iPage);
|
---|
438 | pReq->aPhysPage[iPage] = phys;
|
---|
439 | }
|
---|
440 |
|
---|
441 | pReq->fInflate = true;
|
---|
442 | pReq->header.size = g_cbChangeMemBalloonReq;
|
---|
443 | pReq->cPages = VMMDEV_MEMORY_BALLOON_CHUNK_PAGES;
|
---|
444 |
|
---|
445 | rc = VbglR0GRPerform(&pReq->header);
|
---|
446 | if (RT_FAILURE(rc))
|
---|
447 | LogRel(("vgdrvBalloonInflate: VbglR0GRPerform failed. rc=%Rrc\n", rc));
|
---|
448 | return rc;
|
---|
449 | }
|
---|
450 |
|
---|
451 |
|
---|
452 | /**
|
---|
453 | * Deflate the balloon by one chunk - info the host and free the memory object.
|
---|
454 | *
|
---|
455 | * The caller owns the balloon mutex.
|
---|
456 | *
|
---|
457 | * @returns IPRT status code.
|
---|
458 | * @param pMemObj Pointer to the R0 memory object.
|
---|
459 | * The memory object will be freed afterwards.
|
---|
460 | * @param pReq The pre-allocated request for performing the VMMDev call.
|
---|
461 | */
|
---|
462 | static int vgdrvBalloonDeflate(PRTR0MEMOBJ pMemObj, VMMDevChangeMemBalloon *pReq)
|
---|
463 | {
|
---|
464 | uint32_t iPage;
|
---|
465 | int rc;
|
---|
466 |
|
---|
467 | for (iPage = 0; iPage < VMMDEV_MEMORY_BALLOON_CHUNK_PAGES; iPage++)
|
---|
468 | {
|
---|
469 | RTHCPHYS phys = RTR0MemObjGetPagePhysAddr(*pMemObj, iPage);
|
---|
470 | pReq->aPhysPage[iPage] = phys;
|
---|
471 | }
|
---|
472 |
|
---|
473 | pReq->fInflate = false;
|
---|
474 | pReq->header.size = g_cbChangeMemBalloonReq;
|
---|
475 | pReq->cPages = VMMDEV_MEMORY_BALLOON_CHUNK_PAGES;
|
---|
476 |
|
---|
477 | rc = VbglR0GRPerform(&pReq->header);
|
---|
478 | if (RT_FAILURE(rc))
|
---|
479 | {
|
---|
480 | LogRel(("vgdrvBalloonDeflate: VbglR0GRPerform failed. rc=%Rrc\n", rc));
|
---|
481 | return rc;
|
---|
482 | }
|
---|
483 |
|
---|
484 | rc = RTR0MemObjFree(*pMemObj, true);
|
---|
485 | if (RT_FAILURE(rc))
|
---|
486 | {
|
---|
487 | LogRel(("vgdrvBalloonDeflate: RTR0MemObjFree(%p,true) -> %Rrc; this is *BAD*!\n", *pMemObj, rc));
|
---|
488 | return rc;
|
---|
489 | }
|
---|
490 |
|
---|
491 | *pMemObj = NIL_RTR0MEMOBJ;
|
---|
492 | return VINF_SUCCESS;
|
---|
493 | }
|
---|
494 |
|
---|
495 |
|
---|
496 | /**
|
---|
497 | * Inflate/deflate the memory balloon and notify the host.
|
---|
498 | *
|
---|
499 | * This is a worker used by vgdrvIoCtl_CheckMemoryBalloon - it takes the mutex.
|
---|
500 | *
|
---|
501 | * @returns VBox status code.
|
---|
502 | * @param pDevExt The device extension.
|
---|
503 | * @param cBalloonChunks The new size of the balloon in chunks of 1MB.
|
---|
504 | * @param pfHandleInR3 Where to return the handle-in-ring3 indicator
|
---|
505 | * (VINF_SUCCESS if set).
|
---|
506 | */
|
---|
507 | static int vgdrvSetBalloonSizeKernel(PVBOXGUESTDEVEXT pDevExt, uint32_t cBalloonChunks, bool *pfHandleInR3)
|
---|
508 | {
|
---|
509 | int rc = VINF_SUCCESS;
|
---|
510 |
|
---|
511 | if (pDevExt->MemBalloon.fUseKernelAPI)
|
---|
512 | {
|
---|
513 | VMMDevChangeMemBalloon *pReq;
|
---|
514 | uint32_t i;
|
---|
515 |
|
---|
516 | if (cBalloonChunks > pDevExt->MemBalloon.cMaxChunks)
|
---|
517 | {
|
---|
518 | LogRel(("vgdrvSetBalloonSizeKernel: illegal balloon size %u (max=%u)\n",
|
---|
519 | cBalloonChunks, pDevExt->MemBalloon.cMaxChunks));
|
---|
520 | return VERR_INVALID_PARAMETER;
|
---|
521 | }
|
---|
522 |
|
---|
523 | if (cBalloonChunks == pDevExt->MemBalloon.cMaxChunks)
|
---|
524 | return VINF_SUCCESS; /* nothing to do */
|
---|
525 |
|
---|
526 | if ( cBalloonChunks > pDevExt->MemBalloon.cChunks
|
---|
527 | && !pDevExt->MemBalloon.paMemObj)
|
---|
528 | {
|
---|
529 | pDevExt->MemBalloon.paMemObj = (PRTR0MEMOBJ)RTMemAllocZ(sizeof(RTR0MEMOBJ) * pDevExt->MemBalloon.cMaxChunks);
|
---|
530 | if (!pDevExt->MemBalloon.paMemObj)
|
---|
531 | {
|
---|
532 | LogRel(("vgdrvSetBalloonSizeKernel: no memory for paMemObj!\n"));
|
---|
533 | return VERR_NO_MEMORY;
|
---|
534 | }
|
---|
535 | }
|
---|
536 |
|
---|
537 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, g_cbChangeMemBalloonReq, VMMDevReq_ChangeMemBalloon);
|
---|
538 | if (RT_FAILURE(rc))
|
---|
539 | return rc;
|
---|
540 |
|
---|
541 | if (cBalloonChunks > pDevExt->MemBalloon.cChunks)
|
---|
542 | {
|
---|
543 | /* inflate */
|
---|
544 | for (i = pDevExt->MemBalloon.cChunks; i < cBalloonChunks; i++)
|
---|
545 | {
|
---|
546 | rc = RTR0MemObjAllocPhysNC(&pDevExt->MemBalloon.paMemObj[i],
|
---|
547 | VMMDEV_MEMORY_BALLOON_CHUNK_SIZE, NIL_RTHCPHYS);
|
---|
548 | if (RT_FAILURE(rc))
|
---|
549 | {
|
---|
550 | if (rc == VERR_NOT_SUPPORTED)
|
---|
551 | {
|
---|
552 | /* not supported -- fall back to the R3-allocated memory. */
|
---|
553 | rc = VINF_SUCCESS;
|
---|
554 | pDevExt->MemBalloon.fUseKernelAPI = false;
|
---|
555 | Assert(pDevExt->MemBalloon.cChunks == 0);
|
---|
556 | Log(("VBoxGuestSetBalloonSizeKernel: PhysNC allocs not supported, falling back to R3 allocs.\n"));
|
---|
557 | }
|
---|
558 | /* else if (rc == VERR_NO_MEMORY || rc == VERR_NO_PHYS_MEMORY):
|
---|
559 | * cannot allocate more memory => don't try further, just stop here */
|
---|
560 | /* else: XXX what else can fail? VERR_MEMOBJ_INIT_FAILED for instance. just stop. */
|
---|
561 | break;
|
---|
562 | }
|
---|
563 |
|
---|
564 | rc = vgdrvBalloonInflate(&pDevExt->MemBalloon.paMemObj[i], pReq);
|
---|
565 | if (RT_FAILURE(rc))
|
---|
566 | {
|
---|
567 | Log(("vboxGuestSetBalloonSize(inflate): failed, rc=%Rrc!\n", rc));
|
---|
568 | RTR0MemObjFree(pDevExt->MemBalloon.paMemObj[i], true);
|
---|
569 | pDevExt->MemBalloon.paMemObj[i] = NIL_RTR0MEMOBJ;
|
---|
570 | break;
|
---|
571 | }
|
---|
572 | pDevExt->MemBalloon.cChunks++;
|
---|
573 | }
|
---|
574 | }
|
---|
575 | else
|
---|
576 | {
|
---|
577 | /* deflate */
|
---|
578 | for (i = pDevExt->MemBalloon.cChunks; i-- > cBalloonChunks;)
|
---|
579 | {
|
---|
580 | rc = vgdrvBalloonDeflate(&pDevExt->MemBalloon.paMemObj[i], pReq);
|
---|
581 | if (RT_FAILURE(rc))
|
---|
582 | {
|
---|
583 | Log(("vboxGuestSetBalloonSize(deflate): failed, rc=%Rrc!\n", rc));
|
---|
584 | break;
|
---|
585 | }
|
---|
586 | pDevExt->MemBalloon.cChunks--;
|
---|
587 | }
|
---|
588 | }
|
---|
589 |
|
---|
590 | VbglR0GRFree(&pReq->header);
|
---|
591 | }
|
---|
592 |
|
---|
593 | /*
|
---|
594 | * Set the handle-in-ring3 indicator. When set Ring-3 will have to work
|
---|
595 | * the balloon changes via the other API.
|
---|
596 | */
|
---|
597 | *pfHandleInR3 = pDevExt->MemBalloon.fUseKernelAPI ? false : true;
|
---|
598 |
|
---|
599 | return rc;
|
---|
600 | }
|
---|
601 |
|
---|
602 |
|
---|
603 | /**
|
---|
604 | * Inflate/deflate the balloon by one chunk.
|
---|
605 | *
|
---|
606 | * Worker for vgdrvIoCtl_ChangeMemoryBalloon - it takes the mutex.
|
---|
607 | *
|
---|
608 | * @returns VBox status code.
|
---|
609 | * @param pDevExt The device extension.
|
---|
610 | * @param pSession The session.
|
---|
611 | * @param pvChunk The address of the chunk to add to / remove from the
|
---|
612 | * balloon. (user space address)
|
---|
613 | * @param fInflate Inflate if true, deflate if false.
|
---|
614 | */
|
---|
615 | static int vgdrvSetBalloonSizeFromUser(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, RTR3PTR pvChunk, bool fInflate)
|
---|
616 | {
|
---|
617 | VMMDevChangeMemBalloon *pReq;
|
---|
618 | PRTR0MEMOBJ pMemObj = NULL;
|
---|
619 | int rc = VINF_SUCCESS;
|
---|
620 | uint32_t i;
|
---|
621 | RT_NOREF1(pSession);
|
---|
622 |
|
---|
623 | if (fInflate)
|
---|
624 | {
|
---|
625 | if ( pDevExt->MemBalloon.cChunks > pDevExt->MemBalloon.cMaxChunks - 1
|
---|
626 | || pDevExt->MemBalloon.cMaxChunks == 0 /* If called without first querying. */)
|
---|
627 | {
|
---|
628 | LogRel(("vgdrvSetBalloonSizeFromUser: cannot inflate balloon, already have %u chunks (max=%u)\n",
|
---|
629 | pDevExt->MemBalloon.cChunks, pDevExt->MemBalloon.cMaxChunks));
|
---|
630 | return VERR_INVALID_PARAMETER;
|
---|
631 | }
|
---|
632 |
|
---|
633 | if (!pDevExt->MemBalloon.paMemObj)
|
---|
634 | {
|
---|
635 | pDevExt->MemBalloon.paMemObj = (PRTR0MEMOBJ)RTMemAlloc(sizeof(RTR0MEMOBJ) * pDevExt->MemBalloon.cMaxChunks);
|
---|
636 | if (!pDevExt->MemBalloon.paMemObj)
|
---|
637 | {
|
---|
638 | LogRel(("vgdrvSetBalloonSizeFromUser: no memory for paMemObj!\n"));
|
---|
639 | return VERR_NO_MEMORY;
|
---|
640 | }
|
---|
641 | for (i = 0; i < pDevExt->MemBalloon.cMaxChunks; i++)
|
---|
642 | pDevExt->MemBalloon.paMemObj[i] = NIL_RTR0MEMOBJ;
|
---|
643 | }
|
---|
644 | }
|
---|
645 | else
|
---|
646 | {
|
---|
647 | if (pDevExt->MemBalloon.cChunks == 0)
|
---|
648 | {
|
---|
649 | AssertMsgFailed(("vgdrvSetBalloonSizeFromUser: cannot decrease balloon, already at size 0\n"));
|
---|
650 | return VERR_INVALID_PARAMETER;
|
---|
651 | }
|
---|
652 | }
|
---|
653 |
|
---|
654 | /*
|
---|
655 | * Enumerate all memory objects and check if the object is already registered.
|
---|
656 | */
|
---|
657 | for (i = 0; i < pDevExt->MemBalloon.cMaxChunks; i++)
|
---|
658 | {
|
---|
659 | if ( fInflate
|
---|
660 | && !pMemObj
|
---|
661 | && pDevExt->MemBalloon.paMemObj[i] == NIL_RTR0MEMOBJ)
|
---|
662 | pMemObj = &pDevExt->MemBalloon.paMemObj[i]; /* found free object pointer */
|
---|
663 | if (RTR0MemObjAddressR3(pDevExt->MemBalloon.paMemObj[i]) == pvChunk)
|
---|
664 | {
|
---|
665 | if (fInflate)
|
---|
666 | return VERR_ALREADY_EXISTS; /* don't provide the same memory twice */
|
---|
667 | pMemObj = &pDevExt->MemBalloon.paMemObj[i];
|
---|
668 | break;
|
---|
669 | }
|
---|
670 | }
|
---|
671 | if (!pMemObj)
|
---|
672 | {
|
---|
673 | if (fInflate)
|
---|
674 | {
|
---|
675 | /* no free object pointer found -- should not happen */
|
---|
676 | return VERR_NO_MEMORY;
|
---|
677 | }
|
---|
678 |
|
---|
679 | /* cannot free this memory as it wasn't provided before */
|
---|
680 | return VERR_NOT_FOUND;
|
---|
681 | }
|
---|
682 |
|
---|
683 | /*
|
---|
684 | * Try inflate / default the balloon as requested.
|
---|
685 | */
|
---|
686 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, g_cbChangeMemBalloonReq, VMMDevReq_ChangeMemBalloon);
|
---|
687 | if (RT_FAILURE(rc))
|
---|
688 | return rc;
|
---|
689 | pReq->header.fRequestor = pSession->fRequestor;
|
---|
690 |
|
---|
691 | if (fInflate)
|
---|
692 | {
|
---|
693 | rc = RTR0MemObjLockUser(pMemObj, pvChunk, VMMDEV_MEMORY_BALLOON_CHUNK_SIZE,
|
---|
694 | RTMEM_PROT_READ | RTMEM_PROT_WRITE, NIL_RTR0PROCESS);
|
---|
695 | if (RT_SUCCESS(rc))
|
---|
696 | {
|
---|
697 | rc = vgdrvBalloonInflate(pMemObj, pReq);
|
---|
698 | if (RT_SUCCESS(rc))
|
---|
699 | pDevExt->MemBalloon.cChunks++;
|
---|
700 | else
|
---|
701 | {
|
---|
702 | Log(("vgdrvSetBalloonSizeFromUser(inflate): failed, rc=%Rrc!\n", rc));
|
---|
703 | RTR0MemObjFree(*pMemObj, true);
|
---|
704 | *pMemObj = NIL_RTR0MEMOBJ;
|
---|
705 | }
|
---|
706 | }
|
---|
707 | }
|
---|
708 | else
|
---|
709 | {
|
---|
710 | rc = vgdrvBalloonDeflate(pMemObj, pReq);
|
---|
711 | if (RT_SUCCESS(rc))
|
---|
712 | pDevExt->MemBalloon.cChunks--;
|
---|
713 | else
|
---|
714 | Log(("vgdrvSetBalloonSizeFromUser(deflate): failed, rc=%Rrc!\n", rc));
|
---|
715 | }
|
---|
716 |
|
---|
717 | VbglR0GRFree(&pReq->header);
|
---|
718 | return rc;
|
---|
719 | }
|
---|
720 |
|
---|
721 |
|
---|
722 | /**
|
---|
723 | * Cleanup the memory balloon of a session.
|
---|
724 | *
|
---|
725 | * Will request the balloon mutex, so it must be valid and the caller must not
|
---|
726 | * own it already.
|
---|
727 | *
|
---|
728 | * @param pDevExt The device extension.
|
---|
729 | * @param pSession The session. Can be NULL at unload.
|
---|
730 | */
|
---|
731 | static void vgdrvCloseMemBalloon(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession)
|
---|
732 | {
|
---|
733 | RTSemFastMutexRequest(pDevExt->MemBalloon.hMtx);
|
---|
734 | if ( pDevExt->MemBalloon.pOwner == pSession
|
---|
735 | || pSession == NULL /*unload*/)
|
---|
736 | {
|
---|
737 | if (pDevExt->MemBalloon.paMemObj)
|
---|
738 | {
|
---|
739 | VMMDevChangeMemBalloon *pReq;
|
---|
740 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, g_cbChangeMemBalloonReq, VMMDevReq_ChangeMemBalloon);
|
---|
741 | if (RT_SUCCESS(rc))
|
---|
742 | {
|
---|
743 | /* fRequestor is kernel here, as we're cleaning up. */
|
---|
744 |
|
---|
745 | uint32_t i;
|
---|
746 | for (i = pDevExt->MemBalloon.cChunks; i-- > 0;)
|
---|
747 | {
|
---|
748 | rc = vgdrvBalloonDeflate(&pDevExt->MemBalloon.paMemObj[i], pReq);
|
---|
749 | if (RT_FAILURE(rc))
|
---|
750 | {
|
---|
751 | LogRel(("vgdrvCloseMemBalloon: Deflate failed with rc=%Rrc. Will leak %u chunks.\n",
|
---|
752 | rc, pDevExt->MemBalloon.cChunks));
|
---|
753 | break;
|
---|
754 | }
|
---|
755 | pDevExt->MemBalloon.paMemObj[i] = NIL_RTR0MEMOBJ;
|
---|
756 | pDevExt->MemBalloon.cChunks--;
|
---|
757 | }
|
---|
758 | VbglR0GRFree(&pReq->header);
|
---|
759 | }
|
---|
760 | else
|
---|
761 | LogRel(("vgdrvCloseMemBalloon: Failed to allocate VMMDev request buffer (rc=%Rrc). Will leak %u chunks.\n",
|
---|
762 | rc, pDevExt->MemBalloon.cChunks));
|
---|
763 | RTMemFree(pDevExt->MemBalloon.paMemObj);
|
---|
764 | pDevExt->MemBalloon.paMemObj = NULL;
|
---|
765 | }
|
---|
766 |
|
---|
767 | pDevExt->MemBalloon.pOwner = NULL;
|
---|
768 | }
|
---|
769 | RTSemFastMutexRelease(pDevExt->MemBalloon.hMtx);
|
---|
770 | }
|
---|
771 |
|
---|
772 | /** @} */
|
---|
773 |
|
---|
774 |
|
---|
775 |
|
---|
776 | /** @name Heartbeat
|
---|
777 | * @{
|
---|
778 | */
|
---|
779 |
|
---|
780 | /**
|
---|
781 | * Sends heartbeat to host.
|
---|
782 | *
|
---|
783 | * @returns VBox status code.
|
---|
784 | */
|
---|
785 | static int vgdrvHeartbeatSend(PVBOXGUESTDEVEXT pDevExt)
|
---|
786 | {
|
---|
787 | int rc;
|
---|
788 | if (pDevExt->pReqGuestHeartbeat)
|
---|
789 | {
|
---|
790 | rc = VbglR0GRPerform(pDevExt->pReqGuestHeartbeat);
|
---|
791 | Log3(("vgdrvHeartbeatSend: VbglR0GRPerform vgdrvHeartbeatSend completed with rc=%Rrc\n", rc));
|
---|
792 | }
|
---|
793 | else
|
---|
794 | rc = VERR_INVALID_STATE;
|
---|
795 | return rc;
|
---|
796 | }
|
---|
797 |
|
---|
798 |
|
---|
799 | /**
|
---|
800 | * Callback for heartbeat timer.
|
---|
801 | */
|
---|
802 | static DECLCALLBACK(void) vgdrvHeartbeatTimerHandler(PRTTIMER hTimer, void *pvUser, uint64_t iTick)
|
---|
803 | {
|
---|
804 | PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pvUser;
|
---|
805 | int rc;
|
---|
806 | AssertReturnVoid(pDevExt);
|
---|
807 |
|
---|
808 | rc = vgdrvHeartbeatSend(pDevExt);
|
---|
809 | if (RT_FAILURE(rc))
|
---|
810 | Log(("HB Timer: vgdrvHeartbeatSend failed: rc=%Rrc\n", rc));
|
---|
811 |
|
---|
812 | NOREF(hTimer); NOREF(iTick);
|
---|
813 | }
|
---|
814 |
|
---|
815 |
|
---|
816 | /**
|
---|
817 | * Configure the host to check guest's heartbeat
|
---|
818 | * and get heartbeat interval from the host.
|
---|
819 | *
|
---|
820 | * @returns VBox status code.
|
---|
821 | * @param pDevExt The device extension.
|
---|
822 | * @param fEnabled Set true to enable guest heartbeat checks on host.
|
---|
823 | */
|
---|
824 | static int vgdrvHeartbeatHostConfigure(PVBOXGUESTDEVEXT pDevExt, bool fEnabled)
|
---|
825 | {
|
---|
826 | VMMDevReqHeartbeat *pReq;
|
---|
827 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_HeartbeatConfigure);
|
---|
828 | Log(("vgdrvHeartbeatHostConfigure: VbglR0GRAlloc vgdrvHeartbeatHostConfigure completed with rc=%Rrc\n", rc));
|
---|
829 | if (RT_SUCCESS(rc))
|
---|
830 | {
|
---|
831 | pReq->fEnabled = fEnabled;
|
---|
832 | pReq->cNsInterval = 0;
|
---|
833 | rc = VbglR0GRPerform(&pReq->header);
|
---|
834 | Log(("vgdrvHeartbeatHostConfigure: VbglR0GRPerform vgdrvHeartbeatHostConfigure completed with rc=%Rrc\n", rc));
|
---|
835 | pDevExt->cNsHeartbeatInterval = pReq->cNsInterval;
|
---|
836 | VbglR0GRFree(&pReq->header);
|
---|
837 | }
|
---|
838 | return rc;
|
---|
839 | }
|
---|
840 |
|
---|
841 |
|
---|
842 | /**
|
---|
843 | * Initializes the heartbeat timer.
|
---|
844 | *
|
---|
845 | * This feature may be disabled by the host.
|
---|
846 | *
|
---|
847 | * @returns VBox status (ignored).
|
---|
848 | * @param pDevExt The device extension.
|
---|
849 | */
|
---|
850 | static int vgdrvHeartbeatInit(PVBOXGUESTDEVEXT pDevExt)
|
---|
851 | {
|
---|
852 | /*
|
---|
853 | * Make sure that heartbeat checking is disabled.
|
---|
854 | */
|
---|
855 | int rc = vgdrvHeartbeatHostConfigure(pDevExt, false);
|
---|
856 | if (RT_SUCCESS(rc))
|
---|
857 | {
|
---|
858 | rc = vgdrvHeartbeatHostConfigure(pDevExt, true);
|
---|
859 | if (RT_SUCCESS(rc))
|
---|
860 | {
|
---|
861 | /*
|
---|
862 | * Preallocate the request to use it from the timer callback because:
|
---|
863 | * 1) on Windows VbglR0GRAlloc must be called at IRQL <= APC_LEVEL
|
---|
864 | * and the timer callback runs at DISPATCH_LEVEL;
|
---|
865 | * 2) avoid repeated allocations.
|
---|
866 | */
|
---|
867 | rc = VbglR0GRAlloc(&pDevExt->pReqGuestHeartbeat, sizeof(*pDevExt->pReqGuestHeartbeat), VMMDevReq_GuestHeartbeat);
|
---|
868 | if (RT_SUCCESS(rc))
|
---|
869 | {
|
---|
870 | LogRel(("vgdrvHeartbeatInit: Setting up heartbeat to trigger every %RU64 milliseconds\n",
|
---|
871 | pDevExt->cNsHeartbeatInterval / RT_NS_1MS));
|
---|
872 | rc = RTTimerCreateEx(&pDevExt->pHeartbeatTimer, pDevExt->cNsHeartbeatInterval, 0 /*fFlags*/,
|
---|
873 | (PFNRTTIMER)vgdrvHeartbeatTimerHandler, pDevExt);
|
---|
874 | if (RT_SUCCESS(rc))
|
---|
875 | {
|
---|
876 | rc = RTTimerStart(pDevExt->pHeartbeatTimer, 0);
|
---|
877 | if (RT_SUCCESS(rc))
|
---|
878 | return VINF_SUCCESS;
|
---|
879 |
|
---|
880 | LogRel(("vgdrvHeartbeatInit: Heartbeat timer failed to start, rc=%Rrc\n", rc));
|
---|
881 | }
|
---|
882 | else
|
---|
883 | LogRel(("vgdrvHeartbeatInit: Failed to create heartbeat timer: %Rrc\n", rc));
|
---|
884 |
|
---|
885 | VbglR0GRFree(pDevExt->pReqGuestHeartbeat);
|
---|
886 | pDevExt->pReqGuestHeartbeat = NULL;
|
---|
887 | }
|
---|
888 | else
|
---|
889 | LogRel(("vgdrvHeartbeatInit: VbglR0GRAlloc(VMMDevReq_GuestHeartbeat): %Rrc\n", rc));
|
---|
890 |
|
---|
891 | LogRel(("vgdrvHeartbeatInit: Failed to set up the timer, guest heartbeat is disabled\n"));
|
---|
892 | vgdrvHeartbeatHostConfigure(pDevExt, false);
|
---|
893 | }
|
---|
894 | else
|
---|
895 | LogRel(("vgdrvHeartbeatInit: Failed to configure host for heartbeat checking: rc=%Rrc\n", rc));
|
---|
896 | }
|
---|
897 | return rc;
|
---|
898 | }
|
---|
899 |
|
---|
900 | /** @} */
|
---|
901 |
|
---|
902 |
|
---|
903 | /**
|
---|
904 | * Helper to reinit the VMMDev communication after hibernation.
|
---|
905 | *
|
---|
906 | * @returns VBox status code.
|
---|
907 | * @param pDevExt The device extension.
|
---|
908 | * @param enmOSType The OS type.
|
---|
909 | *
|
---|
910 | * @todo Call this on all platforms, not just windows.
|
---|
911 | */
|
---|
912 | int VGDrvCommonReinitDevExtAfterHibernation(PVBOXGUESTDEVEXT pDevExt, VBOXOSTYPE enmOSType)
|
---|
913 | {
|
---|
914 | int rc = vgdrvReportGuestInfo(enmOSType);
|
---|
915 | if (RT_SUCCESS(rc))
|
---|
916 | {
|
---|
917 | rc = vgdrvReportDriverStatus(true /* Driver is active */);
|
---|
918 | if (RT_FAILURE(rc))
|
---|
919 | Log(("VGDrvCommonReinitDevExtAfterHibernation: could not report guest driver status, rc=%Rrc\n", rc));
|
---|
920 | }
|
---|
921 | else
|
---|
922 | Log(("VGDrvCommonReinitDevExtAfterHibernation: could not report guest information to host, rc=%Rrc\n", rc));
|
---|
923 | LogFlow(("VGDrvCommonReinitDevExtAfterHibernation: returned with rc=%Rrc\n", rc));
|
---|
924 | RT_NOREF1(pDevExt);
|
---|
925 | return rc;
|
---|
926 | }
|
---|
927 |
|
---|
928 |
|
---|
929 | /**
|
---|
930 | * Initializes the release logger (debug is implicit), if configured.
|
---|
931 | *
|
---|
932 | * @returns IPRT status code.
|
---|
933 | */
|
---|
934 | int VGDrvCommonInitLoggers(void)
|
---|
935 | {
|
---|
936 | #ifdef VBOX_GUESTDRV_WITH_RELEASE_LOGGER
|
---|
937 | /*
|
---|
938 | * Create the release log.
|
---|
939 | */
|
---|
940 | static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
|
---|
941 | PRTLOGGER pRelLogger;
|
---|
942 | int rc = RTLogCreate(&pRelLogger, 0 /*fFlags*/, "all", "VBOXGUEST_RELEASE_LOG", RT_ELEMENTS(s_apszGroups), s_apszGroups,
|
---|
943 | RTLOGDEST_STDOUT | RTLOGDEST_DEBUGGER, NULL);
|
---|
944 | if (RT_SUCCESS(rc))
|
---|
945 | RTLogRelSetDefaultInstance(pRelLogger);
|
---|
946 | /** @todo Add native hook for getting logger config parameters and setting
|
---|
947 | * them. On linux we should use the module parameter stuff... */
|
---|
948 | return rc;
|
---|
949 | #else
|
---|
950 | return VINF_SUCCESS;
|
---|
951 | #endif
|
---|
952 | }
|
---|
953 |
|
---|
954 |
|
---|
955 | /**
|
---|
956 | * Destroys the loggers.
|
---|
957 | */
|
---|
958 | void VGDrvCommonDestroyLoggers(void)
|
---|
959 | {
|
---|
960 | #ifdef VBOX_GUESTDRV_WITH_RELEASE_LOGGER
|
---|
961 | RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
|
---|
962 | RTLogDestroy(RTLogSetDefaultInstance(NULL));
|
---|
963 | #endif
|
---|
964 | }
|
---|
965 |
|
---|
966 |
|
---|
967 | /**
|
---|
968 | * Initialize the device extension fundament.
|
---|
969 | *
|
---|
970 | * There are no device resources at this point, VGDrvCommonInitDevExtResources
|
---|
971 | * should be called when they are available.
|
---|
972 | *
|
---|
973 | * @returns VBox status code.
|
---|
974 | * @param pDevExt The device extension to init.
|
---|
975 | */
|
---|
976 | int VGDrvCommonInitDevExtFundament(PVBOXGUESTDEVEXT pDevExt)
|
---|
977 | {
|
---|
978 | int rc;
|
---|
979 | AssertMsg( pDevExt->uInitState != VBOXGUESTDEVEXT_INIT_STATE_FUNDAMENT
|
---|
980 | && pDevExt->uInitState != VBOXGUESTDEVEXT_INIT_STATE_RESOURCES, ("uInitState=%#x\n", pDevExt->uInitState));
|
---|
981 |
|
---|
982 | /*
|
---|
983 | * Initialize the data.
|
---|
984 | */
|
---|
985 | pDevExt->IOPortBase = UINT16_MAX;
|
---|
986 | pDevExt->pVMMDevMemory = NULL;
|
---|
987 | pDevExt->hGuestMappings = NIL_RTR0MEMOBJ;
|
---|
988 | pDevExt->EventSpinlock = NIL_RTSPINLOCK;
|
---|
989 | pDevExt->fHostFeatures = 0;
|
---|
990 | pDevExt->pIrqAckEvents = NULL;
|
---|
991 | pDevExt->PhysIrqAckEvents = NIL_RTCCPHYS;
|
---|
992 | RTListInit(&pDevExt->WaitList);
|
---|
993 | #ifdef VBOX_WITH_HGCM
|
---|
994 | RTListInit(&pDevExt->HGCMWaitList);
|
---|
995 | #endif
|
---|
996 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
997 | RTListInit(&pDevExt->WakeUpList);
|
---|
998 | #endif
|
---|
999 | RTListInit(&pDevExt->WokenUpList);
|
---|
1000 | RTListInit(&pDevExt->FreeList);
|
---|
1001 | RTListInit(&pDevExt->SessionList);
|
---|
1002 | pDevExt->cSessions = 0;
|
---|
1003 | pDevExt->fLoggingEnabled = false;
|
---|
1004 | pDevExt->f32PendingEvents = 0;
|
---|
1005 | pDevExt->u32MousePosChangedSeq = 0;
|
---|
1006 | pDevExt->SessionSpinlock = NIL_RTSPINLOCK;
|
---|
1007 | pDevExt->MemBalloon.hMtx = NIL_RTSEMFASTMUTEX;
|
---|
1008 | pDevExt->MemBalloon.cChunks = 0;
|
---|
1009 | pDevExt->MemBalloon.cMaxChunks = 0;
|
---|
1010 | pDevExt->MemBalloon.fUseKernelAPI = true;
|
---|
1011 | pDevExt->MemBalloon.paMemObj = NULL;
|
---|
1012 | pDevExt->MemBalloon.pOwner = NULL;
|
---|
1013 | pDevExt->pfnMouseNotifyCallback = NULL;
|
---|
1014 | pDevExt->pvMouseNotifyCallbackArg = NULL;
|
---|
1015 | pDevExt->pReqGuestHeartbeat = NULL;
|
---|
1016 |
|
---|
1017 | pDevExt->fFixedEvents = 0;
|
---|
1018 | vgdrvBitUsageTrackerClear(&pDevExt->EventFilterTracker);
|
---|
1019 | pDevExt->fEventFilterHost = UINT32_MAX; /* forces a report */
|
---|
1020 |
|
---|
1021 | vgdrvBitUsageTrackerClear(&pDevExt->MouseStatusTracker);
|
---|
1022 | pDevExt->fMouseStatusHost = UINT32_MAX; /* forces a report */
|
---|
1023 |
|
---|
1024 | pDevExt->fAcquireModeGuestCaps = 0;
|
---|
1025 | pDevExt->fSetModeGuestCaps = 0;
|
---|
1026 | pDevExt->fAcquiredGuestCaps = 0;
|
---|
1027 | vgdrvBitUsageTrackerClear(&pDevExt->SetGuestCapsTracker);
|
---|
1028 | pDevExt->fGuestCapsHost = UINT32_MAX; /* forces a report */
|
---|
1029 |
|
---|
1030 | /*
|
---|
1031 | * Create the wait and session spinlocks as well as the ballooning mutex.
|
---|
1032 | */
|
---|
1033 | rc = RTSpinlockCreate(&pDevExt->EventSpinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "VBoxGuestEvent");
|
---|
1034 | if (RT_SUCCESS(rc))
|
---|
1035 | {
|
---|
1036 | rc = RTSpinlockCreate(&pDevExt->SessionSpinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "VBoxGuestSession");
|
---|
1037 | if (RT_SUCCESS(rc))
|
---|
1038 | {
|
---|
1039 | rc = RTSemFastMutexCreate(&pDevExt->MemBalloon.hMtx);
|
---|
1040 | if (RT_SUCCESS(rc))
|
---|
1041 | {
|
---|
1042 | pDevExt->uInitState = VBOXGUESTDEVEXT_INIT_STATE_FUNDAMENT;
|
---|
1043 | return VINF_SUCCESS;
|
---|
1044 | }
|
---|
1045 |
|
---|
1046 | LogRel(("VGDrvCommonInitDevExt: failed to create mutex, rc=%Rrc!\n", rc));
|
---|
1047 | RTSpinlockDestroy(pDevExt->SessionSpinlock);
|
---|
1048 | }
|
---|
1049 | else
|
---|
1050 | LogRel(("VGDrvCommonInitDevExt: failed to create spinlock, rc=%Rrc!\n", rc));
|
---|
1051 | RTSpinlockDestroy(pDevExt->EventSpinlock);
|
---|
1052 | }
|
---|
1053 | else
|
---|
1054 | LogRel(("VGDrvCommonInitDevExt: failed to create spinlock, rc=%Rrc!\n", rc));
|
---|
1055 |
|
---|
1056 | pDevExt->uInitState = 0;
|
---|
1057 | return rc;
|
---|
1058 | }
|
---|
1059 |
|
---|
1060 |
|
---|
1061 | /**
|
---|
1062 | * Counter to VGDrvCommonInitDevExtFundament.
|
---|
1063 | *
|
---|
1064 | * @param pDevExt The device extension.
|
---|
1065 | */
|
---|
1066 | void VGDrvCommonDeleteDevExtFundament(PVBOXGUESTDEVEXT pDevExt)
|
---|
1067 | {
|
---|
1068 | int rc2;
|
---|
1069 | AssertMsgReturnVoid(pDevExt->uInitState == VBOXGUESTDEVEXT_INIT_STATE_FUNDAMENT, ("uInitState=%#x\n", pDevExt->uInitState));
|
---|
1070 | pDevExt->uInitState = VBOXGUESTDEVEXT_INIT_STATE_DELETED;
|
---|
1071 |
|
---|
1072 | rc2 = RTSemFastMutexDestroy(pDevExt->MemBalloon.hMtx); AssertRC(rc2);
|
---|
1073 | rc2 = RTSpinlockDestroy(pDevExt->EventSpinlock); AssertRC(rc2);
|
---|
1074 | rc2 = RTSpinlockDestroy(pDevExt->SessionSpinlock); AssertRC(rc2);
|
---|
1075 | }
|
---|
1076 |
|
---|
1077 |
|
---|
1078 | /**
|
---|
1079 | * Initializes the VBoxGuest device extension resource parts.
|
---|
1080 | *
|
---|
1081 | * The native code locates the VMMDev on the PCI bus and retrieve the MMIO and
|
---|
1082 | * I/O port ranges, this function will take care of mapping the MMIO memory (if
|
---|
1083 | * present). Upon successful return the native code should set up the interrupt
|
---|
1084 | * handler.
|
---|
1085 | *
|
---|
1086 | * @returns VBox status code.
|
---|
1087 | *
|
---|
1088 | * @param pDevExt The device extension. Allocated by the native code.
|
---|
1089 | * @param IOPortBase The base of the I/O port range.
|
---|
1090 | * @param pvMMIOBase The base of the MMIO memory mapping.
|
---|
1091 | * This is optional, pass NULL if not present.
|
---|
1092 | * @param cbMMIO The size of the MMIO memory mapping.
|
---|
1093 | * This is optional, pass 0 if not present.
|
---|
1094 | * @param enmOSType The guest OS type to report to the VMMDev.
|
---|
1095 | * @param fFixedEvents Events that will be enabled upon init and no client
|
---|
1096 | * will ever be allowed to mask.
|
---|
1097 | */
|
---|
1098 | int VGDrvCommonInitDevExtResources(PVBOXGUESTDEVEXT pDevExt, uint16_t IOPortBase,
|
---|
1099 | void *pvMMIOBase, uint32_t cbMMIO, VBOXOSTYPE enmOSType, uint32_t fFixedEvents)
|
---|
1100 | {
|
---|
1101 | int rc;
|
---|
1102 | AssertMsgReturn(pDevExt->uInitState == VBOXGUESTDEVEXT_INIT_STATE_FUNDAMENT, ("uInitState=%#x\n", pDevExt->uInitState),
|
---|
1103 | VERR_INVALID_STATE);
|
---|
1104 |
|
---|
1105 | /*
|
---|
1106 | * If there is an MMIO region validate the version and size.
|
---|
1107 | */
|
---|
1108 | if (pvMMIOBase)
|
---|
1109 | {
|
---|
1110 | VMMDevMemory *pVMMDev = (VMMDevMemory *)pvMMIOBase;
|
---|
1111 | Assert(cbMMIO);
|
---|
1112 | if ( pVMMDev->u32Version == VMMDEV_MEMORY_VERSION
|
---|
1113 | && pVMMDev->u32Size >= 32
|
---|
1114 | && pVMMDev->u32Size <= cbMMIO)
|
---|
1115 | {
|
---|
1116 | pDevExt->pVMMDevMemory = pVMMDev;
|
---|
1117 | Log(("VGDrvCommonInitDevExtResources: VMMDevMemory: mapping=%p size=%#RX32 (%#RX32) version=%#RX32\n",
|
---|
1118 | pVMMDev, pVMMDev->u32Size, cbMMIO, pVMMDev->u32Version));
|
---|
1119 | }
|
---|
1120 | else /* try live without it. */
|
---|
1121 | LogRel(("VGDrvCommonInitDevExtResources: Bogus VMMDev memory; u32Version=%RX32 (expected %RX32) u32Size=%RX32 (expected <= %RX32)\n",
|
---|
1122 | pVMMDev->u32Version, VMMDEV_MEMORY_VERSION, pVMMDev->u32Size, cbMMIO));
|
---|
1123 | }
|
---|
1124 |
|
---|
1125 | /*
|
---|
1126 | * Initialize the guest library and report the guest info back to VMMDev,
|
---|
1127 | * set the interrupt control filter mask, and fixate the guest mappings
|
---|
1128 | * made by the VMM.
|
---|
1129 | */
|
---|
1130 | pDevExt->IOPortBase = IOPortBase;
|
---|
1131 | rc = VbglR0InitPrimary(pDevExt->IOPortBase, (VMMDevMemory *)pDevExt->pVMMDevMemory, &pDevExt->fHostFeatures);
|
---|
1132 | if (RT_SUCCESS(rc))
|
---|
1133 | {
|
---|
1134 | VMMDevRequestHeader *pAckReq = NULL;
|
---|
1135 | rc = VbglR0GRAlloc(&pAckReq, sizeof(VMMDevEvents), VMMDevReq_AcknowledgeEvents);
|
---|
1136 | if (RT_SUCCESS(rc))
|
---|
1137 | {
|
---|
1138 | pDevExt->PhysIrqAckEvents = VbglR0PhysHeapGetPhysAddr(pAckReq);
|
---|
1139 | Assert(pDevExt->PhysIrqAckEvents != 0);
|
---|
1140 | ASMCompilerBarrier(); /* linux + solaris already have IRQs hooked up at this point, so take care. */
|
---|
1141 | pDevExt->pIrqAckEvents = (VMMDevEvents *)pAckReq;
|
---|
1142 |
|
---|
1143 | rc = vgdrvReportGuestInfo(enmOSType);
|
---|
1144 | if (RT_SUCCESS(rc))
|
---|
1145 | {
|
---|
1146 | /*
|
---|
1147 | * Set the fixed event and make sure the host doesn't have any lingering
|
---|
1148 | * the guest capabilities or mouse status bits set.
|
---|
1149 | */
|
---|
1150 | #ifdef VBOX_WITH_HGCM
|
---|
1151 | fFixedEvents |= VMMDEV_EVENT_HGCM;
|
---|
1152 | #endif
|
---|
1153 | pDevExt->fFixedEvents = fFixedEvents;
|
---|
1154 | rc = vgdrvResetEventFilterOnHost(pDevExt, fFixedEvents);
|
---|
1155 | if (RT_SUCCESS(rc))
|
---|
1156 | {
|
---|
1157 | rc = vgdrvResetCapabilitiesOnHost(pDevExt);
|
---|
1158 | if (RT_SUCCESS(rc))
|
---|
1159 | {
|
---|
1160 | rc = vgdrvResetMouseStatusOnHost(pDevExt);
|
---|
1161 | if (RT_SUCCESS(rc))
|
---|
1162 | {
|
---|
1163 | /*
|
---|
1164 | * Initialize stuff which may fail without requiring the driver init to fail.
|
---|
1165 | */
|
---|
1166 | vgdrvInitFixateGuestMappings(pDevExt);
|
---|
1167 | vgdrvHeartbeatInit(pDevExt);
|
---|
1168 |
|
---|
1169 | /*
|
---|
1170 | * Done!
|
---|
1171 | */
|
---|
1172 | rc = vgdrvReportDriverStatus(true /* Driver is active */);
|
---|
1173 | if (RT_FAILURE(rc))
|
---|
1174 | LogRel(("VGDrvCommonInitDevExtResources: VBoxReportGuestDriverStatus failed, rc=%Rrc\n", rc));
|
---|
1175 |
|
---|
1176 | pDevExt->uInitState = VBOXGUESTDEVEXT_INIT_STATE_RESOURCES;
|
---|
1177 | LogFlowFunc(("VGDrvCommonInitDevExtResources: returns success\n"));
|
---|
1178 | return VINF_SUCCESS;
|
---|
1179 | }
|
---|
1180 | LogRel(("VGDrvCommonInitDevExtResources: failed to clear mouse status: rc=%Rrc\n", rc));
|
---|
1181 | }
|
---|
1182 | else
|
---|
1183 | LogRel(("VGDrvCommonInitDevExtResources: failed to clear guest capabilities: rc=%Rrc\n", rc));
|
---|
1184 | }
|
---|
1185 | else
|
---|
1186 | LogRel(("VGDrvCommonInitDevExtResources: failed to set fixed event filter: rc=%Rrc\n", rc));
|
---|
1187 | pDevExt->fFixedEvents = 0;
|
---|
1188 | }
|
---|
1189 | else
|
---|
1190 | LogRel(("VGDrvCommonInitDevExtResources: vgdrvReportGuestInfo failed: rc=%Rrc\n", rc));
|
---|
1191 | VbglR0GRFree((VMMDevRequestHeader *)pDevExt->pIrqAckEvents);
|
---|
1192 | }
|
---|
1193 | else
|
---|
1194 | LogRel(("VGDrvCommonInitDevExtResources: VbglR0GRAlloc failed: rc=%Rrc\n", rc));
|
---|
1195 |
|
---|
1196 | VbglR0TerminatePrimary();
|
---|
1197 | }
|
---|
1198 | else
|
---|
1199 | LogRel(("VGDrvCommonInitDevExtResources: VbglR0InitPrimary failed: rc=%Rrc\n", rc));
|
---|
1200 | pDevExt->IOPortBase = UINT16_MAX;
|
---|
1201 | return rc;
|
---|
1202 | }
|
---|
1203 |
|
---|
1204 |
|
---|
1205 | /**
|
---|
1206 | * Deletes all the items in a wait chain.
|
---|
1207 | * @param pList The head of the chain.
|
---|
1208 | */
|
---|
1209 | static void vgdrvDeleteWaitList(PRTLISTNODE pList)
|
---|
1210 | {
|
---|
1211 | while (!RTListIsEmpty(pList))
|
---|
1212 | {
|
---|
1213 | int rc2;
|
---|
1214 | PVBOXGUESTWAIT pWait = RTListGetFirst(pList, VBOXGUESTWAIT, ListNode);
|
---|
1215 | RTListNodeRemove(&pWait->ListNode);
|
---|
1216 |
|
---|
1217 | rc2 = RTSemEventMultiDestroy(pWait->Event); AssertRC(rc2);
|
---|
1218 | pWait->Event = NIL_RTSEMEVENTMULTI;
|
---|
1219 | pWait->pSession = NULL;
|
---|
1220 | RTMemFree(pWait);
|
---|
1221 | }
|
---|
1222 | }
|
---|
1223 |
|
---|
1224 |
|
---|
1225 | /**
|
---|
1226 | * Counter to VGDrvCommonInitDevExtResources.
|
---|
1227 | *
|
---|
1228 | * @param pDevExt The device extension.
|
---|
1229 | */
|
---|
1230 | void VGDrvCommonDeleteDevExtResources(PVBOXGUESTDEVEXT pDevExt)
|
---|
1231 | {
|
---|
1232 | Log(("VGDrvCommonDeleteDevExtResources:\n"));
|
---|
1233 | AssertMsgReturnVoid(pDevExt->uInitState == VBOXGUESTDEVEXT_INIT_STATE_RESOURCES, ("uInitState=%#x\n", pDevExt->uInitState));
|
---|
1234 | pDevExt->uInitState = VBOXGUESTDEVEXT_INIT_STATE_FUNDAMENT;
|
---|
1235 |
|
---|
1236 | /*
|
---|
1237 | * Stop and destroy HB timer and disable host heartbeat checking.
|
---|
1238 | */
|
---|
1239 | if (pDevExt->pHeartbeatTimer)
|
---|
1240 | {
|
---|
1241 | RTTimerDestroy(pDevExt->pHeartbeatTimer);
|
---|
1242 | vgdrvHeartbeatHostConfigure(pDevExt, false);
|
---|
1243 | }
|
---|
1244 |
|
---|
1245 | VbglR0GRFree(pDevExt->pReqGuestHeartbeat);
|
---|
1246 | pDevExt->pReqGuestHeartbeat = NULL;
|
---|
1247 |
|
---|
1248 | /*
|
---|
1249 | * Clean up the bits that involves the host first.
|
---|
1250 | */
|
---|
1251 | vgdrvTermUnfixGuestMappings(pDevExt);
|
---|
1252 | if (!RTListIsEmpty(&pDevExt->SessionList))
|
---|
1253 | {
|
---|
1254 | LogRelFunc(("session list not empty!\n"));
|
---|
1255 | RTListInit(&pDevExt->SessionList);
|
---|
1256 | }
|
---|
1257 |
|
---|
1258 | /*
|
---|
1259 | * Update the host flags (mouse status etc) not to reflect this session.
|
---|
1260 | */
|
---|
1261 | pDevExt->fFixedEvents = 0;
|
---|
1262 | vgdrvResetEventFilterOnHost(pDevExt, 0 /*fFixedEvents*/);
|
---|
1263 | vgdrvResetCapabilitiesOnHost(pDevExt);
|
---|
1264 | vgdrvResetMouseStatusOnHost(pDevExt);
|
---|
1265 |
|
---|
1266 | vgdrvCloseMemBalloon(pDevExt, (PVBOXGUESTSESSION)NULL);
|
---|
1267 |
|
---|
1268 | /*
|
---|
1269 | * No more IRQs.
|
---|
1270 | */
|
---|
1271 | pDevExt->pIrqAckEvents = NULL; /* Will be freed by VbglR0TerminatePrimary. */
|
---|
1272 | ASMAtomicWriteU32(&pDevExt->fHostFeatures, 0);
|
---|
1273 |
|
---|
1274 | /*
|
---|
1275 | * Cleanup all the other resources.
|
---|
1276 | */
|
---|
1277 | vgdrvDeleteWaitList(&pDevExt->WaitList);
|
---|
1278 | #ifdef VBOX_WITH_HGCM
|
---|
1279 | vgdrvDeleteWaitList(&pDevExt->HGCMWaitList);
|
---|
1280 | #endif
|
---|
1281 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
1282 | vgdrvDeleteWaitList(&pDevExt->WakeUpList);
|
---|
1283 | #endif
|
---|
1284 | vgdrvDeleteWaitList(&pDevExt->WokenUpList);
|
---|
1285 | vgdrvDeleteWaitList(&pDevExt->FreeList);
|
---|
1286 |
|
---|
1287 | VbglR0TerminatePrimary();
|
---|
1288 |
|
---|
1289 |
|
---|
1290 | pDevExt->pVMMDevMemory = NULL;
|
---|
1291 | pDevExt->IOPortBase = 0;
|
---|
1292 | }
|
---|
1293 |
|
---|
1294 |
|
---|
1295 | /**
|
---|
1296 | * Initializes the VBoxGuest device extension when the device driver is loaded.
|
---|
1297 | *
|
---|
1298 | * The native code locates the VMMDev on the PCI bus and retrieve the MMIO and
|
---|
1299 | * I/O port ranges, this function will take care of mapping the MMIO memory (if
|
---|
1300 | * present). Upon successful return the native code should set up the interrupt
|
---|
1301 | * handler.
|
---|
1302 | *
|
---|
1303 | * Instead of calling this method, the host specific code choose to perform a
|
---|
1304 | * more granular initialization using:
|
---|
1305 | * 1. VGDrvCommonInitLoggers
|
---|
1306 | * 2. VGDrvCommonInitDevExtFundament
|
---|
1307 | * 3. VGDrvCommonInitDevExtResources
|
---|
1308 | *
|
---|
1309 | * @returns VBox status code.
|
---|
1310 | *
|
---|
1311 | * @param pDevExt The device extension. Allocated by the native code.
|
---|
1312 | * @param IOPortBase The base of the I/O port range.
|
---|
1313 | * @param pvMMIOBase The base of the MMIO memory mapping.
|
---|
1314 | * This is optional, pass NULL if not present.
|
---|
1315 | * @param cbMMIO The size of the MMIO memory mapping.
|
---|
1316 | * This is optional, pass 0 if not present.
|
---|
1317 | * @param enmOSType The guest OS type to report to the VMMDev.
|
---|
1318 | * @param fFixedEvents Events that will be enabled upon init and no client
|
---|
1319 | * will ever be allowed to mask.
|
---|
1320 | */
|
---|
1321 | int VGDrvCommonInitDevExt(PVBOXGUESTDEVEXT pDevExt, uint16_t IOPortBase,
|
---|
1322 | void *pvMMIOBase, uint32_t cbMMIO, VBOXOSTYPE enmOSType, uint32_t fFixedEvents)
|
---|
1323 | {
|
---|
1324 | int rc;
|
---|
1325 | VGDrvCommonInitLoggers();
|
---|
1326 |
|
---|
1327 | rc = VGDrvCommonInitDevExtFundament(pDevExt);
|
---|
1328 | if (RT_SUCCESS(rc))
|
---|
1329 | {
|
---|
1330 | rc = VGDrvCommonInitDevExtResources(pDevExt, IOPortBase, pvMMIOBase, cbMMIO, enmOSType, fFixedEvents);
|
---|
1331 | if (RT_SUCCESS(rc))
|
---|
1332 | return rc;
|
---|
1333 |
|
---|
1334 | VGDrvCommonDeleteDevExtFundament(pDevExt);
|
---|
1335 | }
|
---|
1336 | VGDrvCommonDestroyLoggers();
|
---|
1337 | return rc; /* (failed) */
|
---|
1338 | }
|
---|
1339 |
|
---|
1340 |
|
---|
1341 | /**
|
---|
1342 | * Checks if the given option can be taken to not mean 'false'.
|
---|
1343 | *
|
---|
1344 | * @returns true or false accordingly.
|
---|
1345 | * @param pszValue The value to consider.
|
---|
1346 | */
|
---|
1347 | bool VBDrvCommonIsOptionValueTrue(const char *pszValue)
|
---|
1348 | {
|
---|
1349 | if (pszValue)
|
---|
1350 | {
|
---|
1351 | char ch;
|
---|
1352 | while ( (ch = *pszValue) != '\0'
|
---|
1353 | && RT_C_IS_SPACE(ch))
|
---|
1354 | pszValue++;
|
---|
1355 |
|
---|
1356 | return ch != '\0'
|
---|
1357 | && ch != 'n' /* no */
|
---|
1358 | && ch != 'N' /* NO */
|
---|
1359 | && ch != 'd' /* disabled */
|
---|
1360 | && ch != 'f' /* false*/
|
---|
1361 | && ch != 'F' /* FALSE */
|
---|
1362 | && ch != 'D' /* DISABLED */
|
---|
1363 | && ( (ch != 'o' && ch != 'O') /* off, OFF, Off */
|
---|
1364 | || (pszValue[1] != 'f' && pszValue[1] != 'F') )
|
---|
1365 | && (ch != '0' || pszValue[1] != '\0') /* '0' */
|
---|
1366 | ;
|
---|
1367 | }
|
---|
1368 | return false;
|
---|
1369 | }
|
---|
1370 |
|
---|
1371 |
|
---|
1372 | /**
|
---|
1373 | * Processes a option.
|
---|
1374 | *
|
---|
1375 | * This will let the OS specific code have a go at it too.
|
---|
1376 | *
|
---|
1377 | * @param pDevExt The device extension.
|
---|
1378 | * @param pszName The option name, sans prefix.
|
---|
1379 | * @param pszValue The option value.
|
---|
1380 | */
|
---|
1381 | void VGDrvCommonProcessOption(PVBOXGUESTDEVEXT pDevExt, const char *pszName, const char *pszValue)
|
---|
1382 | {
|
---|
1383 | Log(("VGDrvCommonProcessOption: pszName='%s' pszValue='%s'\n", pszName, pszValue));
|
---|
1384 |
|
---|
1385 | if ( RTStrICmpAscii(pszName, "r3_log_to_host") == 0
|
---|
1386 | || RTStrICmpAscii(pszName, "LoggingEnabled") == 0 /*legacy*/ )
|
---|
1387 | pDevExt->fLoggingEnabled = VBDrvCommonIsOptionValueTrue(pszValue);
|
---|
1388 | else if ( RTStrNICmpAscii(pszName, RT_STR_TUPLE("log")) == 0
|
---|
1389 | || RTStrNICmpAscii(pszName, RT_STR_TUPLE("dbg_log")) == 0)
|
---|
1390 | {
|
---|
1391 | bool const fDbgRel = *pszName == 'd' || *pszName == 'D';
|
---|
1392 | const char *pszSubName = &pszName[fDbgRel ? 4 + 3 : 3];
|
---|
1393 | if ( !*pszSubName
|
---|
1394 | || RTStrICmpAscii(pszSubName, "_flags") == 0
|
---|
1395 | || RTStrICmpAscii(pszSubName, "_dest") == 0)
|
---|
1396 | {
|
---|
1397 | PRTLOGGER pLogger = !fDbgRel ? RTLogRelGetDefaultInstance() : RTLogDefaultInstance();
|
---|
1398 | if (pLogger)
|
---|
1399 | {
|
---|
1400 | if (!*pszSubName)
|
---|
1401 | RTLogGroupSettings(pLogger, pszValue);
|
---|
1402 | else if (RTStrICmpAscii(pszSubName, "_flags"))
|
---|
1403 | RTLogFlags(pLogger, pszValue);
|
---|
1404 | else
|
---|
1405 | RTLogDestinations(pLogger, pszValue);
|
---|
1406 | }
|
---|
1407 | }
|
---|
1408 | else if (!VGDrvNativeProcessOption(pDevExt, pszName, pszValue))
|
---|
1409 | LogRel(("VBoxGuest: Ignoring unknown option '%s' (value '%s')\n", pszName, pszValue));
|
---|
1410 | }
|
---|
1411 | else if (!VGDrvNativeProcessOption(pDevExt, pszName, pszValue))
|
---|
1412 | LogRel(("VBoxGuest: Ignoring unknown option '%s' (value '%s')\n", pszName, pszValue));
|
---|
1413 | }
|
---|
1414 |
|
---|
1415 |
|
---|
1416 | /**
|
---|
1417 | * Read driver configuration from the host.
|
---|
1418 | *
|
---|
1419 | * This involves connecting to the guest properties service, which means that
|
---|
1420 | * interrupts needs to work and that the calling thread must be able to block.
|
---|
1421 | *
|
---|
1422 | * @param pDevExt The device extension.
|
---|
1423 | */
|
---|
1424 | void VGDrvCommonProcessOptionsFromHost(PVBOXGUESTDEVEXT pDevExt)
|
---|
1425 | {
|
---|
1426 | /*
|
---|
1427 | * Create a kernel session without our selves, then connect to the HGCM service.
|
---|
1428 | */
|
---|
1429 | PVBOXGUESTSESSION pSession;
|
---|
1430 | int rc = VGDrvCommonCreateKernelSession(pDevExt, &pSession);
|
---|
1431 | if (RT_SUCCESS(rc))
|
---|
1432 | {
|
---|
1433 | union
|
---|
1434 | {
|
---|
1435 | VBGLIOCHGCMCONNECT Connect;
|
---|
1436 | VBGLIOCHGCMDISCONNECT Disconnect;
|
---|
1437 | GuestPropMsgEnumProperties EnumMsg;
|
---|
1438 | } uBuf;
|
---|
1439 |
|
---|
1440 | RT_ZERO(uBuf.Connect);
|
---|
1441 | VBGLREQHDR_INIT(&uBuf.Connect.Hdr, HGCM_CONNECT);
|
---|
1442 | uBuf.Connect.u.In.Loc.type = VMMDevHGCMLoc_LocalHost_Existing;
|
---|
1443 | RTStrCopy(uBuf.Connect.u.In.Loc.u.host.achName, sizeof(uBuf.Connect.u.In.Loc.u.host.achName),
|
---|
1444 | "VBoxGuestPropSvc"); /** @todo Add a define to the header for the name. */
|
---|
1445 | rc = VGDrvCommonIoCtl(VBGL_IOCTL_HGCM_CONNECT, pDevExt, pSession, &uBuf.Connect.Hdr, sizeof(uBuf.Connect));
|
---|
1446 | if (RT_SUCCESS(rc))
|
---|
1447 | {
|
---|
1448 | static const char g_szzPattern[] = "/VirtualBox/GuestAdd/VBoxGuest/*\0";
|
---|
1449 | uint32_t const idClient = uBuf.Connect.u.Out.idClient;
|
---|
1450 | char *pszzStrings = NULL;
|
---|
1451 | uint32_t cbStrings;
|
---|
1452 |
|
---|
1453 | /*
|
---|
1454 | * Enumerate all the relevant properties. We try with a 1KB buffer, but
|
---|
1455 | * will double it until we get what we want or go beyond 16KB.
|
---|
1456 | */
|
---|
1457 | for (cbStrings = _1K; cbStrings <= _16K; cbStrings *= 2)
|
---|
1458 | {
|
---|
1459 | pszzStrings = (char *)RTMemAllocZ(cbStrings);
|
---|
1460 | if (pszzStrings)
|
---|
1461 | {
|
---|
1462 | VBGL_HGCM_HDR_INIT(&uBuf.EnumMsg.hdr, idClient, GUEST_PROP_FN_ENUM_PROPS, 3);
|
---|
1463 |
|
---|
1464 | uBuf.EnumMsg.patterns.type = VMMDevHGCMParmType_LinAddr;
|
---|
1465 | uBuf.EnumMsg.patterns.u.Pointer.size = sizeof(g_szzPattern);
|
---|
1466 | uBuf.EnumMsg.patterns.u.Pointer.u.linearAddr = (uintptr_t)g_szzPattern;
|
---|
1467 |
|
---|
1468 | uBuf.EnumMsg.strings.type = VMMDevHGCMParmType_LinAddr;
|
---|
1469 | uBuf.EnumMsg.strings.u.Pointer.size = cbStrings;
|
---|
1470 | uBuf.EnumMsg.strings.u.Pointer.u.linearAddr = (uintptr_t)pszzStrings;
|
---|
1471 |
|
---|
1472 | uBuf.EnumMsg.size.type = VMMDevHGCMParmType_32bit;
|
---|
1473 | uBuf.EnumMsg.size.u.value32 = 0;
|
---|
1474 |
|
---|
1475 | rc = VGDrvCommonIoCtl(VBGL_IOCTL_HGCM_CALL(sizeof(uBuf.EnumMsg)), pDevExt, pSession,
|
---|
1476 | &uBuf.EnumMsg.hdr.Hdr, sizeof(uBuf.EnumMsg));
|
---|
1477 | if (RT_SUCCESS(rc))
|
---|
1478 | {
|
---|
1479 | if ( uBuf.EnumMsg.size.type == VMMDevHGCMParmType_32bit
|
---|
1480 | && uBuf.EnumMsg.size.u.value32 <= cbStrings
|
---|
1481 | && uBuf.EnumMsg.size.u.value32 > 0)
|
---|
1482 | cbStrings = uBuf.EnumMsg.size.u.value32;
|
---|
1483 | Log(("VGDrvCommonReadConfigurationFromHost: GUEST_PROP_FN_ENUM_PROPS -> %#x bytes (cbStrings=%#x)\n",
|
---|
1484 | uBuf.EnumMsg.size.u.value32, cbStrings));
|
---|
1485 | break;
|
---|
1486 | }
|
---|
1487 |
|
---|
1488 | RTMemFree(pszzStrings);
|
---|
1489 | pszzStrings = NULL;
|
---|
1490 | }
|
---|
1491 | else
|
---|
1492 | {
|
---|
1493 | LogRel(("VGDrvCommonReadConfigurationFromHost: failed to allocate %#x bytes\n", cbStrings));
|
---|
1494 | break;
|
---|
1495 | }
|
---|
1496 | }
|
---|
1497 |
|
---|
1498 | /*
|
---|
1499 | * Disconnect and destroy the session.
|
---|
1500 | */
|
---|
1501 | VBGLREQHDR_INIT(&uBuf.Disconnect.Hdr, HGCM_DISCONNECT);
|
---|
1502 | uBuf.Disconnect.u.In.idClient = idClient;
|
---|
1503 | VGDrvCommonIoCtl(VBGL_IOCTL_HGCM_DISCONNECT, pDevExt, pSession, &uBuf.Disconnect.Hdr, sizeof(uBuf.Disconnect));
|
---|
1504 |
|
---|
1505 | VGDrvCommonCloseSession(pDevExt, pSession);
|
---|
1506 |
|
---|
1507 | /*
|
---|
1508 | * Process the properties if we got any.
|
---|
1509 | *
|
---|
1510 | * The string buffer contains packed strings in groups of four - name, value,
|
---|
1511 | * timestamp (as a decimal string) and flags. It is terminated by four empty
|
---|
1512 | * strings. Layout:
|
---|
1513 | * Name\0Value\0Timestamp\0Flags\0
|
---|
1514 | */
|
---|
1515 | if (pszzStrings)
|
---|
1516 | {
|
---|
1517 | uint32_t off;
|
---|
1518 | for (off = 0; off < cbStrings; off++)
|
---|
1519 | {
|
---|
1520 | /*
|
---|
1521 | * Parse the four fields, checking that it's all plain ASCII w/o any control characters.
|
---|
1522 | */
|
---|
1523 | const char *apszFields[4] = { NULL, NULL, NULL, NULL };
|
---|
1524 | bool fValidFields = true;
|
---|
1525 | unsigned iField;
|
---|
1526 | for (iField = 0; iField < RT_ELEMENTS(apszFields); iField++)
|
---|
1527 | {
|
---|
1528 | apszFields[0] = &pszzStrings[off];
|
---|
1529 | while (off < cbStrings)
|
---|
1530 | {
|
---|
1531 | char ch = pszzStrings[off++];
|
---|
1532 | if ((unsigned)ch < 0x20U || (unsigned)ch > 0x7fU)
|
---|
1533 | {
|
---|
1534 | if (!ch)
|
---|
1535 | break;
|
---|
1536 | if (fValidFields)
|
---|
1537 | Log(("VGDrvCommonReadConfigurationFromHost: Invalid char %#x at %#x (field %u)\n",
|
---|
1538 | ch, off - 1, iField));
|
---|
1539 | fValidFields = false;
|
---|
1540 | }
|
---|
1541 | }
|
---|
1542 | }
|
---|
1543 | if ( off <= cbStrings
|
---|
1544 | && fValidFields
|
---|
1545 | && *apszFields[0] != '\0')
|
---|
1546 | {
|
---|
1547 | /*
|
---|
1548 | * Validate and convert the flags to integer, then process the option.
|
---|
1549 | */
|
---|
1550 | uint32_t fFlags = 0;
|
---|
1551 | rc = GuestPropValidateFlags(apszFields[3], &fFlags);
|
---|
1552 | if (RT_SUCCESS(rc))
|
---|
1553 | {
|
---|
1554 | if (fFlags & GUEST_PROP_F_RDONLYGUEST)
|
---|
1555 | {
|
---|
1556 | apszFields[0] += sizeof(g_szzPattern) - 2;
|
---|
1557 | VGDrvCommonProcessOption(pDevExt, apszFields[0], apszFields[1]);
|
---|
1558 | }
|
---|
1559 | else
|
---|
1560 | LogRel(("VBoxGuest: Ignoring '%s' as it does not have RDONLYGUEST set\n", apszFields[0]));
|
---|
1561 | }
|
---|
1562 | else
|
---|
1563 | LogRel(("VBoxGuest: Invalid flags '%s' for '%s': %Rrc\n", apszFields[2], apszFields[0], rc));
|
---|
1564 | }
|
---|
1565 | else if (off < cbStrings)
|
---|
1566 | {
|
---|
1567 | LogRel(("VBoxGuest: Malformed guest properties enum result!\n"));
|
---|
1568 | Log(("VBoxGuest: off=%#x cbStrings=%#x\n%.*Rhxd\n", off, cbStrings, cbStrings, pszzStrings));
|
---|
1569 | break;
|
---|
1570 | }
|
---|
1571 | else if (!fValidFields)
|
---|
1572 | LogRel(("VBoxGuest: Ignoring %.*Rhxs as it has invalid characters in one or more fields\n",
|
---|
1573 | (int)strlen(apszFields[0]), apszFields[0]));
|
---|
1574 | else
|
---|
1575 | break;
|
---|
1576 | }
|
---|
1577 |
|
---|
1578 | RTMemFree(pszzStrings);
|
---|
1579 | }
|
---|
1580 | else
|
---|
1581 | LogRel(("VGDrvCommonReadConfigurationFromHost: failed to enumerate '%s': %Rrc\n", g_szzPattern, rc));
|
---|
1582 |
|
---|
1583 | }
|
---|
1584 | else
|
---|
1585 | LogRel(("VGDrvCommonReadConfigurationFromHost: failed to connect: %Rrc\n", rc));
|
---|
1586 | }
|
---|
1587 | else
|
---|
1588 | LogRel(("VGDrvCommonReadConfigurationFromHost: failed to connect: %Rrc\n", rc));
|
---|
1589 | }
|
---|
1590 |
|
---|
1591 |
|
---|
1592 | /**
|
---|
1593 | * Destroys the VBoxGuest device extension.
|
---|
1594 | *
|
---|
1595 | * The native code should call this before the driver is unloaded,
|
---|
1596 | * but don't call this on shutdown.
|
---|
1597 | *
|
---|
1598 | * @param pDevExt The device extension.
|
---|
1599 | */
|
---|
1600 | void VGDrvCommonDeleteDevExt(PVBOXGUESTDEVEXT pDevExt)
|
---|
1601 | {
|
---|
1602 | Log(("VGDrvCommonDeleteDevExt:\n"));
|
---|
1603 | Log(("VBoxGuest: The additions driver is terminating.\n"));
|
---|
1604 | VGDrvCommonDeleteDevExtResources(pDevExt);
|
---|
1605 | VGDrvCommonDeleteDevExtFundament(pDevExt);
|
---|
1606 | VGDrvCommonDestroyLoggers();
|
---|
1607 | }
|
---|
1608 |
|
---|
1609 |
|
---|
1610 | /**
|
---|
1611 | * Creates a VBoxGuest user session.
|
---|
1612 | *
|
---|
1613 | * The native code calls this when a ring-3 client opens the device.
|
---|
1614 | * Use VGDrvCommonCreateKernelSession when a ring-0 client connects.
|
---|
1615 | *
|
---|
1616 | * @returns VBox status code.
|
---|
1617 | * @param pDevExt The device extension.
|
---|
1618 | * @param fRequestor VMMDEV_REQUESTOR_XXX.
|
---|
1619 | * @param ppSession Where to store the session on success.
|
---|
1620 | */
|
---|
1621 | int VGDrvCommonCreateUserSession(PVBOXGUESTDEVEXT pDevExt, uint32_t fRequestor, PVBOXGUESTSESSION *ppSession)
|
---|
1622 | {
|
---|
1623 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)RTMemAllocZ(sizeof(*pSession));
|
---|
1624 | if (RT_UNLIKELY(!pSession))
|
---|
1625 | {
|
---|
1626 | LogRel(("VGDrvCommonCreateUserSession: no memory!\n"));
|
---|
1627 | return VERR_NO_MEMORY;
|
---|
1628 | }
|
---|
1629 |
|
---|
1630 | pSession->Process = RTProcSelf();
|
---|
1631 | pSession->R0Process = RTR0ProcHandleSelf();
|
---|
1632 | pSession->pDevExt = pDevExt;
|
---|
1633 | pSession->fRequestor = fRequestor;
|
---|
1634 | pSession->fUserSession = RT_BOOL(fRequestor & VMMDEV_REQUESTOR_USER_DEVICE);
|
---|
1635 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
1636 | RTListAppend(&pDevExt->SessionList, &pSession->ListNode);
|
---|
1637 | pDevExt->cSessions++;
|
---|
1638 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
1639 |
|
---|
1640 | *ppSession = pSession;
|
---|
1641 | LogFlow(("VGDrvCommonCreateUserSession: pSession=%p proc=%RTproc (%d) r0proc=%p\n",
|
---|
1642 | pSession, pSession->Process, (int)pSession->Process, (uintptr_t)pSession->R0Process)); /** @todo %RTr0proc */
|
---|
1643 | return VINF_SUCCESS;
|
---|
1644 | }
|
---|
1645 |
|
---|
1646 |
|
---|
1647 | /**
|
---|
1648 | * Creates a VBoxGuest kernel session.
|
---|
1649 | *
|
---|
1650 | * The native code calls this when a ring-0 client connects to the device.
|
---|
1651 | * Use VGDrvCommonCreateUserSession when a ring-3 client opens the device.
|
---|
1652 | *
|
---|
1653 | * @returns VBox status code.
|
---|
1654 | * @param pDevExt The device extension.
|
---|
1655 | * @param ppSession Where to store the session on success.
|
---|
1656 | */
|
---|
1657 | int VGDrvCommonCreateKernelSession(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION *ppSession)
|
---|
1658 | {
|
---|
1659 | PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)RTMemAllocZ(sizeof(*pSession));
|
---|
1660 | if (RT_UNLIKELY(!pSession))
|
---|
1661 | {
|
---|
1662 | LogRel(("VGDrvCommonCreateKernelSession: no memory!\n"));
|
---|
1663 | return VERR_NO_MEMORY;
|
---|
1664 | }
|
---|
1665 |
|
---|
1666 | pSession->Process = NIL_RTPROCESS;
|
---|
1667 | pSession->R0Process = NIL_RTR0PROCESS;
|
---|
1668 | pSession->pDevExt = pDevExt;
|
---|
1669 | pSession->fRequestor = VMMDEV_REQUESTOR_KERNEL | VMMDEV_REQUESTOR_USR_DRV_OTHER
|
---|
1670 | | VMMDEV_REQUESTOR_CON_DONT_KNOW | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN;
|
---|
1671 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
1672 | RTListAppend(&pDevExt->SessionList, &pSession->ListNode);
|
---|
1673 | pDevExt->cSessions++;
|
---|
1674 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
1675 |
|
---|
1676 | *ppSession = pSession;
|
---|
1677 | LogFlow(("VGDrvCommonCreateKernelSession: pSession=%p proc=%RTproc (%d) r0proc=%p\n",
|
---|
1678 | pSession, pSession->Process, (int)pSession->Process, (uintptr_t)pSession->R0Process)); /** @todo %RTr0proc */
|
---|
1679 | return VINF_SUCCESS;
|
---|
1680 | }
|
---|
1681 |
|
---|
1682 |
|
---|
1683 | /**
|
---|
1684 | * Closes a VBoxGuest session.
|
---|
1685 | *
|
---|
1686 | * @param pDevExt The device extension.
|
---|
1687 | * @param pSession The session to close (and free).
|
---|
1688 | */
|
---|
1689 | void VGDrvCommonCloseSession(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession)
|
---|
1690 | {
|
---|
1691 | #ifdef VBOX_WITH_HGCM
|
---|
1692 | unsigned i;
|
---|
1693 | #endif
|
---|
1694 | LogFlow(("VGDrvCommonCloseSession: pSession=%p proc=%RTproc (%d) r0proc=%p\n",
|
---|
1695 | pSession, pSession->Process, (int)pSession->Process, (uintptr_t)pSession->R0Process)); /** @todo %RTr0proc */
|
---|
1696 |
|
---|
1697 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
1698 | RTListNodeRemove(&pSession->ListNode);
|
---|
1699 | pDevExt->cSessions--;
|
---|
1700 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
1701 | vgdrvAcquireSessionCapabilities(pDevExt, pSession, 0, UINT32_MAX, VBGL_IOC_AGC_FLAGS_DEFAULT, true /*fSessionTermination*/);
|
---|
1702 | vgdrvSetSessionCapabilities(pDevExt, pSession, 0 /*fOrMask*/, UINT32_MAX /*fNotMask*/,
|
---|
1703 | NULL /*pfSessionCaps*/, NULL /*pfGlobalCaps*/, true /*fSessionTermination*/);
|
---|
1704 | vgdrvSetSessionEventFilter(pDevExt, pSession, 0 /*fOrMask*/, UINT32_MAX /*fNotMask*/, true /*fSessionTermination*/);
|
---|
1705 | vgdrvSetSessionMouseStatus(pDevExt, pSession, 0 /*fOrMask*/, UINT32_MAX /*fNotMask*/, true /*fSessionTermination*/);
|
---|
1706 |
|
---|
1707 | vgdrvIoCtl_CancelAllWaitEvents(pDevExt, pSession);
|
---|
1708 |
|
---|
1709 | #ifdef VBOX_WITH_HGCM
|
---|
1710 | for (i = 0; i < RT_ELEMENTS(pSession->aHGCMClientIds); i++)
|
---|
1711 | if (pSession->aHGCMClientIds[i])
|
---|
1712 | {
|
---|
1713 | uint32_t idClient = pSession->aHGCMClientIds[i];
|
---|
1714 | pSession->aHGCMClientIds[i] = 0;
|
---|
1715 | Log(("VGDrvCommonCloseSession: disconnecting client id %#RX32\n", idClient));
|
---|
1716 | VbglR0HGCMInternalDisconnect(idClient, VMMDEV_REQUESTOR_KERNEL | VMMDEV_REQUESTOR_USR_DRV,
|
---|
1717 | vgdrvHgcmAsyncWaitCallback, pDevExt, RT_INDEFINITE_WAIT);
|
---|
1718 | }
|
---|
1719 | #endif
|
---|
1720 |
|
---|
1721 | pSession->pDevExt = NULL;
|
---|
1722 | pSession->Process = NIL_RTPROCESS;
|
---|
1723 | pSession->R0Process = NIL_RTR0PROCESS;
|
---|
1724 | vgdrvCloseMemBalloon(pDevExt, pSession);
|
---|
1725 | RTMemFree(pSession);
|
---|
1726 | }
|
---|
1727 |
|
---|
1728 |
|
---|
1729 | /**
|
---|
1730 | * Allocates a wait-for-event entry.
|
---|
1731 | *
|
---|
1732 | * @returns The wait-for-event entry.
|
---|
1733 | * @param pDevExt The device extension.
|
---|
1734 | * @param pSession The session that's allocating this. Can be NULL.
|
---|
1735 | */
|
---|
1736 | static PVBOXGUESTWAIT vgdrvWaitAlloc(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession)
|
---|
1737 | {
|
---|
1738 | /*
|
---|
1739 | * Allocate it one way or the other.
|
---|
1740 | */
|
---|
1741 | PVBOXGUESTWAIT pWait = RTListGetFirst(&pDevExt->FreeList, VBOXGUESTWAIT, ListNode);
|
---|
1742 | if (pWait)
|
---|
1743 | {
|
---|
1744 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
1745 |
|
---|
1746 | pWait = RTListGetFirst(&pDevExt->FreeList, VBOXGUESTWAIT, ListNode);
|
---|
1747 | if (pWait)
|
---|
1748 | RTListNodeRemove(&pWait->ListNode);
|
---|
1749 |
|
---|
1750 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
1751 | }
|
---|
1752 | if (!pWait)
|
---|
1753 | {
|
---|
1754 | int rc;
|
---|
1755 |
|
---|
1756 | pWait = (PVBOXGUESTWAIT)RTMemAlloc(sizeof(*pWait));
|
---|
1757 | if (!pWait)
|
---|
1758 | {
|
---|
1759 | LogRelMax(32, ("vgdrvWaitAlloc: out-of-memory!\n"));
|
---|
1760 | return NULL;
|
---|
1761 | }
|
---|
1762 |
|
---|
1763 | rc = RTSemEventMultiCreate(&pWait->Event);
|
---|
1764 | if (RT_FAILURE(rc))
|
---|
1765 | {
|
---|
1766 | LogRelMax(32, ("vgdrvWaitAlloc: RTSemEventMultiCreate failed with rc=%Rrc!\n", rc));
|
---|
1767 | RTMemFree(pWait);
|
---|
1768 | return NULL;
|
---|
1769 | }
|
---|
1770 |
|
---|
1771 | pWait->ListNode.pNext = NULL;
|
---|
1772 | pWait->ListNode.pPrev = NULL;
|
---|
1773 | }
|
---|
1774 |
|
---|
1775 | /*
|
---|
1776 | * Zero members just as an precaution.
|
---|
1777 | */
|
---|
1778 | pWait->fReqEvents = 0;
|
---|
1779 | pWait->fResEvents = 0;
|
---|
1780 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
1781 | pWait->fPendingWakeUp = false;
|
---|
1782 | pWait->fFreeMe = false;
|
---|
1783 | #endif
|
---|
1784 | pWait->pSession = pSession;
|
---|
1785 | #ifdef VBOX_WITH_HGCM
|
---|
1786 | pWait->pHGCMReq = NULL;
|
---|
1787 | #endif
|
---|
1788 | RTSemEventMultiReset(pWait->Event);
|
---|
1789 | return pWait;
|
---|
1790 | }
|
---|
1791 |
|
---|
1792 |
|
---|
1793 | /**
|
---|
1794 | * Frees the wait-for-event entry.
|
---|
1795 | *
|
---|
1796 | * The caller must own the wait spinlock !
|
---|
1797 | * The entry must be in a list!
|
---|
1798 | *
|
---|
1799 | * @param pDevExt The device extension.
|
---|
1800 | * @param pWait The wait-for-event entry to free.
|
---|
1801 | */
|
---|
1802 | static void vgdrvWaitFreeLocked(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTWAIT pWait)
|
---|
1803 | {
|
---|
1804 | pWait->fReqEvents = 0;
|
---|
1805 | pWait->fResEvents = 0;
|
---|
1806 | #ifdef VBOX_WITH_HGCM
|
---|
1807 | pWait->pHGCMReq = NULL;
|
---|
1808 | #endif
|
---|
1809 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
1810 | Assert(!pWait->fFreeMe);
|
---|
1811 | if (pWait->fPendingWakeUp)
|
---|
1812 | pWait->fFreeMe = true;
|
---|
1813 | else
|
---|
1814 | #endif
|
---|
1815 | {
|
---|
1816 | RTListNodeRemove(&pWait->ListNode);
|
---|
1817 | RTListAppend(&pDevExt->FreeList, &pWait->ListNode);
|
---|
1818 | }
|
---|
1819 | }
|
---|
1820 |
|
---|
1821 |
|
---|
1822 | /**
|
---|
1823 | * Frees the wait-for-event entry.
|
---|
1824 | *
|
---|
1825 | * @param pDevExt The device extension.
|
---|
1826 | * @param pWait The wait-for-event entry to free.
|
---|
1827 | */
|
---|
1828 | static void vgdrvWaitFreeUnlocked(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTWAIT pWait)
|
---|
1829 | {
|
---|
1830 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
1831 | vgdrvWaitFreeLocked(pDevExt, pWait);
|
---|
1832 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
1833 | }
|
---|
1834 |
|
---|
1835 |
|
---|
1836 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
1837 | /**
|
---|
1838 | * Processes the wake-up list.
|
---|
1839 | *
|
---|
1840 | * All entries in the wake-up list gets signalled and moved to the woken-up
|
---|
1841 | * list.
|
---|
1842 | * At least on Windows this function can be invoked concurrently from
|
---|
1843 | * different VCPUs. So, be thread-safe.
|
---|
1844 | *
|
---|
1845 | * @param pDevExt The device extension.
|
---|
1846 | */
|
---|
1847 | void VGDrvCommonWaitDoWakeUps(PVBOXGUESTDEVEXT pDevExt)
|
---|
1848 | {
|
---|
1849 | if (!RTListIsEmpty(&pDevExt->WakeUpList))
|
---|
1850 | {
|
---|
1851 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
1852 | for (;;)
|
---|
1853 | {
|
---|
1854 | int rc;
|
---|
1855 | PVBOXGUESTWAIT pWait = RTListGetFirst(&pDevExt->WakeUpList, VBOXGUESTWAIT, ListNode);
|
---|
1856 | if (!pWait)
|
---|
1857 | break;
|
---|
1858 | /* Prevent other threads from accessing pWait when spinlock is released. */
|
---|
1859 | RTListNodeRemove(&pWait->ListNode);
|
---|
1860 |
|
---|
1861 | pWait->fPendingWakeUp = true;
|
---|
1862 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
1863 |
|
---|
1864 | rc = RTSemEventMultiSignal(pWait->Event);
|
---|
1865 | AssertRC(rc);
|
---|
1866 |
|
---|
1867 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
1868 | Assert(pWait->ListNode.pNext == NULL && pWait->ListNode.pPrev == NULL);
|
---|
1869 | RTListAppend(&pDevExt->WokenUpList, &pWait->ListNode);
|
---|
1870 | pWait->fPendingWakeUp = false;
|
---|
1871 | if (RT_LIKELY(!pWait->fFreeMe))
|
---|
1872 | { /* likely */ }
|
---|
1873 | else
|
---|
1874 | {
|
---|
1875 | pWait->fFreeMe = false;
|
---|
1876 | vgdrvWaitFreeLocked(pDevExt, pWait);
|
---|
1877 | }
|
---|
1878 | }
|
---|
1879 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
1880 | }
|
---|
1881 | }
|
---|
1882 | #endif /* VBOXGUEST_USE_DEFERRED_WAKE_UP */
|
---|
1883 |
|
---|
1884 |
|
---|
1885 | /**
|
---|
1886 | * Implements the fast (no input or output) type of IOCtls.
|
---|
1887 | *
|
---|
1888 | * This is currently just a placeholder stub inherited from the support driver code.
|
---|
1889 | *
|
---|
1890 | * @returns VBox status code.
|
---|
1891 | * @param iFunction The IOCtl function number.
|
---|
1892 | * @param pDevExt The device extension.
|
---|
1893 | * @param pSession The session.
|
---|
1894 | */
|
---|
1895 | int VGDrvCommonIoCtlFast(uintptr_t iFunction, PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession)
|
---|
1896 | {
|
---|
1897 | LogFlow(("VGDrvCommonIoCtlFast: iFunction=%#x pDevExt=%p pSession=%p\n", iFunction, pDevExt, pSession));
|
---|
1898 |
|
---|
1899 | NOREF(iFunction);
|
---|
1900 | NOREF(pDevExt);
|
---|
1901 | NOREF(pSession);
|
---|
1902 | return VERR_NOT_SUPPORTED;
|
---|
1903 | }
|
---|
1904 |
|
---|
1905 |
|
---|
1906 | /**
|
---|
1907 | * Gets the driver I/O control interface version, maybe adjusting it for
|
---|
1908 | * backwards compatibility.
|
---|
1909 | *
|
---|
1910 | * The adjusting is currently not implemented as we only have one major I/O
|
---|
1911 | * control interface version out there to support. This is something we will
|
---|
1912 | * implement as needed.
|
---|
1913 | *
|
---|
1914 | * returns IPRT status code.
|
---|
1915 | * @param pDevExt The device extension.
|
---|
1916 | * @param pSession The session.
|
---|
1917 | * @param pReq The request info.
|
---|
1918 | */
|
---|
1919 | static int vgdrvIoCtl_DriverVersionInfo(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCDRIVERVERSIONINFO pReq)
|
---|
1920 | {
|
---|
1921 | int rc;
|
---|
1922 | LogFlow(("VBGL_IOCTL_DRIVER_VERSION_INFO: uReqVersion=%#x uMinVersion=%#x uReserved1=%#x uReserved2=%#x\n",
|
---|
1923 | pReq->u.In.uReqVersion, pReq->u.In.uMinVersion, pReq->u.In.uReserved1, pReq->u.In.uReserved2));
|
---|
1924 | RT_NOREF2(pDevExt, pSession);
|
---|
1925 |
|
---|
1926 | /*
|
---|
1927 | * Input validation.
|
---|
1928 | */
|
---|
1929 | if ( pReq->u.In.uMinVersion <= pReq->u.In.uReqVersion
|
---|
1930 | && RT_HI_U16(pReq->u.In.uMinVersion) == RT_HI_U16(pReq->u.In.uReqVersion))
|
---|
1931 | {
|
---|
1932 | /*
|
---|
1933 | * Match the version.
|
---|
1934 | * The current logic is very simple, match the major interface version.
|
---|
1935 | */
|
---|
1936 | if ( pReq->u.In.uMinVersion <= VBGL_IOC_VERSION
|
---|
1937 | && RT_HI_U16(pReq->u.In.uMinVersion) == RT_HI_U16(VBGL_IOC_VERSION))
|
---|
1938 | rc = VINF_SUCCESS;
|
---|
1939 | else
|
---|
1940 | {
|
---|
1941 | LogRel(("VBGL_IOCTL_DRIVER_VERSION_INFO: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
|
---|
1942 | pReq->u.In.uReqVersion, pReq->u.In.uMinVersion, VBGL_IOC_VERSION));
|
---|
1943 | rc = VERR_VERSION_MISMATCH;
|
---|
1944 | }
|
---|
1945 | }
|
---|
1946 | else
|
---|
1947 | {
|
---|
1948 | LogRel(("VBGL_IOCTL_DRIVER_VERSION_INFO: uMinVersion=%#x uMaxVersion=%#x doesn't match!\n",
|
---|
1949 | pReq->u.In.uMinVersion, pReq->u.In.uReqVersion));
|
---|
1950 | rc = VERR_INVALID_PARAMETER;
|
---|
1951 | }
|
---|
1952 |
|
---|
1953 | pReq->u.Out.uSessionVersion = RT_SUCCESS(rc) ? VBGL_IOC_VERSION : UINT32_MAX;
|
---|
1954 | pReq->u.Out.uDriverVersion = VBGL_IOC_VERSION;
|
---|
1955 | pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
|
---|
1956 | pReq->u.Out.uReserved1 = 0;
|
---|
1957 | pReq->u.Out.uReserved2 = 0;
|
---|
1958 | return rc;
|
---|
1959 | }
|
---|
1960 |
|
---|
1961 |
|
---|
1962 | /**
|
---|
1963 | * Similar to vgdrvIoCtl_DriverVersionInfo, except its for IDC.
|
---|
1964 | *
|
---|
1965 | * returns IPRT status code.
|
---|
1966 | * @param pDevExt The device extension.
|
---|
1967 | * @param pSession The session.
|
---|
1968 | * @param pReq The request info.
|
---|
1969 | */
|
---|
1970 | static int vgdrvIoCtl_IdcConnect(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCIDCCONNECT pReq)
|
---|
1971 | {
|
---|
1972 | int rc;
|
---|
1973 | LogFlow(("VBGL_IOCTL_IDC_CONNECT: u32MagicCookie=%#x uReqVersion=%#x uMinVersion=%#x uReserved=%#x\n",
|
---|
1974 | pReq->u.In.u32MagicCookie, pReq->u.In.uReqVersion, pReq->u.In.uMinVersion, pReq->u.In.uReserved));
|
---|
1975 | Assert(pSession != NULL);
|
---|
1976 | RT_NOREF(pDevExt);
|
---|
1977 |
|
---|
1978 | /*
|
---|
1979 | * Input validation.
|
---|
1980 | */
|
---|
1981 | if (pReq->u.In.u32MagicCookie == VBGL_IOCTL_IDC_CONNECT_MAGIC_COOKIE)
|
---|
1982 | {
|
---|
1983 | if ( pReq->u.In.uMinVersion <= pReq->u.In.uReqVersion
|
---|
1984 | && RT_HI_U16(pReq->u.In.uMinVersion) == RT_HI_U16(pReq->u.In.uReqVersion))
|
---|
1985 | {
|
---|
1986 | /*
|
---|
1987 | * Match the version.
|
---|
1988 | * The current logic is very simple, match the major interface version.
|
---|
1989 | */
|
---|
1990 | if ( pReq->u.In.uMinVersion <= VBGL_IOC_VERSION
|
---|
1991 | && RT_HI_U16(pReq->u.In.uMinVersion) == RT_HI_U16(VBGL_IOC_VERSION))
|
---|
1992 | {
|
---|
1993 | pReq->u.Out.pvSession = pSession;
|
---|
1994 | pReq->u.Out.uSessionVersion = VBGL_IOC_VERSION;
|
---|
1995 | pReq->u.Out.uDriverVersion = VBGL_IOC_VERSION;
|
---|
1996 | pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
|
---|
1997 | pReq->u.Out.uReserved1 = 0;
|
---|
1998 | pReq->u.Out.pvReserved2 = NULL;
|
---|
1999 | return VINF_SUCCESS;
|
---|
2000 |
|
---|
2001 | }
|
---|
2002 | LogRel(("VBGL_IOCTL_IDC_CONNECT: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
|
---|
2003 | pReq->u.In.uReqVersion, pReq->u.In.uMinVersion, VBGL_IOC_VERSION));
|
---|
2004 | rc = VERR_VERSION_MISMATCH;
|
---|
2005 | }
|
---|
2006 | else
|
---|
2007 | {
|
---|
2008 | LogRel(("VBGL_IOCTL_IDC_CONNECT: uMinVersion=%#x uMaxVersion=%#x doesn't match!\n",
|
---|
2009 | pReq->u.In.uMinVersion, pReq->u.In.uReqVersion));
|
---|
2010 | rc = VERR_INVALID_PARAMETER;
|
---|
2011 | }
|
---|
2012 |
|
---|
2013 | pReq->u.Out.pvSession = NULL;
|
---|
2014 | pReq->u.Out.uSessionVersion = UINT32_MAX;
|
---|
2015 | pReq->u.Out.uDriverVersion = VBGL_IOC_VERSION;
|
---|
2016 | pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
|
---|
2017 | pReq->u.Out.uReserved1 = 0;
|
---|
2018 | pReq->u.Out.pvReserved2 = NULL;
|
---|
2019 | }
|
---|
2020 | else
|
---|
2021 | {
|
---|
2022 | LogRel(("VBGL_IOCTL_IDC_CONNECT: u32MagicCookie=%#x expected %#x!\n",
|
---|
2023 | pReq->u.In.u32MagicCookie, VBGL_IOCTL_IDC_CONNECT_MAGIC_COOKIE));
|
---|
2024 | rc = VERR_INVALID_PARAMETER;
|
---|
2025 | }
|
---|
2026 | return rc;
|
---|
2027 | }
|
---|
2028 |
|
---|
2029 |
|
---|
2030 | /**
|
---|
2031 | * Counterpart to vgdrvIoCtl_IdcConnect, destroys the session.
|
---|
2032 | *
|
---|
2033 | * returns IPRT status code.
|
---|
2034 | * @param pDevExt The device extension.
|
---|
2035 | * @param pSession The session.
|
---|
2036 | * @param pReq The request info.
|
---|
2037 | */
|
---|
2038 | static int vgdrvIoCtl_IdcDisconnect(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCIDCDISCONNECT pReq)
|
---|
2039 | {
|
---|
2040 | LogFlow(("VBGL_IOCTL_IDC_DISCONNECT: pvSession=%p vs pSession=%p\n", pReq->u.In.pvSession, pSession));
|
---|
2041 | RT_NOREF(pDevExt);
|
---|
2042 | Assert(pSession != NULL);
|
---|
2043 |
|
---|
2044 | if (pReq->u.In.pvSession == pSession)
|
---|
2045 | {
|
---|
2046 | VGDrvCommonCloseSession(pDevExt, pSession);
|
---|
2047 | return VINF_SUCCESS;
|
---|
2048 | }
|
---|
2049 | LogRel(("VBGL_IOCTL_IDC_DISCONNECT: In.pvSession=%p is not equal to pSession=%p!\n", pReq->u.In.pvSession, pSession));
|
---|
2050 | return VERR_INVALID_PARAMETER;
|
---|
2051 | }
|
---|
2052 |
|
---|
2053 |
|
---|
2054 | /**
|
---|
2055 | * Return the VMM device I/O info.
|
---|
2056 | *
|
---|
2057 | * returns IPRT status code.
|
---|
2058 | * @param pDevExt The device extension.
|
---|
2059 | * @param pInfo The request info.
|
---|
2060 | * @note Ring-0 only, caller checked.
|
---|
2061 | */
|
---|
2062 | static int vgdrvIoCtl_GetVMMDevIoInfo(PVBOXGUESTDEVEXT pDevExt, PVBGLIOCGETVMMDEVIOINFO pInfo)
|
---|
2063 | {
|
---|
2064 | LogFlow(("VBGL_IOCTL_GET_VMMDEV_IO_INFO\n"));
|
---|
2065 |
|
---|
2066 | pInfo->u.Out.IoPort = pDevExt->IOPortBase;
|
---|
2067 | pInfo->u.Out.pvVmmDevMapping = pDevExt->pVMMDevMemory;
|
---|
2068 | pInfo->u.Out.auPadding[0] = 0;
|
---|
2069 | #if HC_ARCH_BITS != 32
|
---|
2070 | pInfo->u.Out.auPadding[1] = 0;
|
---|
2071 | pInfo->u.Out.auPadding[2] = 0;
|
---|
2072 | #endif
|
---|
2073 | return VINF_SUCCESS;
|
---|
2074 | }
|
---|
2075 |
|
---|
2076 |
|
---|
2077 | /**
|
---|
2078 | * Set the callback for the kernel mouse handler.
|
---|
2079 | *
|
---|
2080 | * returns IPRT status code.
|
---|
2081 | * @param pDevExt The device extension.
|
---|
2082 | * @param pNotify The new callback information.
|
---|
2083 | */
|
---|
2084 | static int vgdrvIoCtl_SetMouseNotifyCallback(PVBOXGUESTDEVEXT pDevExt, PVBGLIOCSETMOUSENOTIFYCALLBACK pNotify)
|
---|
2085 | {
|
---|
2086 | LogFlow(("VBOXGUEST_IOCTL_SET_MOUSE_NOTIFY_CALLBACK: pfnNotify=%p pvUser=%p\n", pNotify->u.In.pfnNotify, pNotify->u.In.pvUser));
|
---|
2087 |
|
---|
2088 | #ifdef VBOXGUEST_MOUSE_NOTIFY_CAN_PREEMPT
|
---|
2089 | VGDrvNativeSetMouseNotifyCallback(pDevExt, pNotify);
|
---|
2090 | #else
|
---|
2091 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
2092 | pDevExt->pfnMouseNotifyCallback = pNotify->u.In.pfnNotify;
|
---|
2093 | pDevExt->pvMouseNotifyCallbackArg = pNotify->u.In.pvUser;
|
---|
2094 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2095 | #endif
|
---|
2096 | return VINF_SUCCESS;
|
---|
2097 | }
|
---|
2098 |
|
---|
2099 |
|
---|
2100 | /**
|
---|
2101 | * Worker vgdrvIoCtl_WaitEvent.
|
---|
2102 | *
|
---|
2103 | * The caller enters the spinlock, we leave it.
|
---|
2104 | *
|
---|
2105 | * @returns VINF_SUCCESS if we've left the spinlock and can return immediately.
|
---|
2106 | */
|
---|
2107 | DECLINLINE(int) vbdgCheckWaitEventCondition(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
|
---|
2108 | PVBGLIOCWAITFOREVENTS pInfo, int iEvent, const uint32_t fReqEvents)
|
---|
2109 | {
|
---|
2110 | uint32_t fMatches = pDevExt->f32PendingEvents & fReqEvents;
|
---|
2111 | if (fMatches & VBOXGUEST_ACQUIRE_STYLE_EVENTS)
|
---|
2112 | fMatches &= vgdrvGetAllowedEventMaskForSession(pDevExt, pSession);
|
---|
2113 | if (fMatches || pSession->fPendingCancelWaitEvents)
|
---|
2114 | {
|
---|
2115 | ASMAtomicAndU32(&pDevExt->f32PendingEvents, ~fMatches);
|
---|
2116 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2117 |
|
---|
2118 | pInfo->u.Out.fEvents = fMatches;
|
---|
2119 | if (fReqEvents & ~((uint32_t)1 << iEvent))
|
---|
2120 | LogFlow(("VBOXGUEST_IOCTL_WAITEVENT: returns %#x\n", pInfo->u.Out.fEvents));
|
---|
2121 | else
|
---|
2122 | LogFlow(("VBOXGUEST_IOCTL_WAITEVENT: returns %#x/%d\n", pInfo->u.Out.fEvents, iEvent));
|
---|
2123 | pSession->fPendingCancelWaitEvents = false;
|
---|
2124 | return VINF_SUCCESS;
|
---|
2125 | }
|
---|
2126 |
|
---|
2127 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2128 | return VERR_TIMEOUT;
|
---|
2129 | }
|
---|
2130 |
|
---|
2131 |
|
---|
2132 | static int vgdrvIoCtl_WaitForEvents(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
|
---|
2133 | PVBGLIOCWAITFOREVENTS pInfo, bool fInterruptible)
|
---|
2134 | {
|
---|
2135 | uint32_t const cMsTimeout = pInfo->u.In.cMsTimeOut;
|
---|
2136 | const uint32_t fReqEvents = pInfo->u.In.fEvents;
|
---|
2137 | uint32_t fResEvents;
|
---|
2138 | int iEvent;
|
---|
2139 | PVBOXGUESTWAIT pWait;
|
---|
2140 | int rc;
|
---|
2141 |
|
---|
2142 | pInfo->u.Out.fEvents = 0; /* Note! This overwrites pInfo->u.In.* fields! */
|
---|
2143 |
|
---|
2144 | /*
|
---|
2145 | * Copy and verify the input mask.
|
---|
2146 | */
|
---|
2147 | iEvent = ASMBitFirstSetU32(fReqEvents) - 1;
|
---|
2148 | if (RT_UNLIKELY(iEvent < 0))
|
---|
2149 | {
|
---|
2150 | LogRel(("VBOXGUEST_IOCTL_WAITEVENT: Invalid input mask %#x!!\n", fReqEvents));
|
---|
2151 | return VERR_INVALID_PARAMETER;
|
---|
2152 | }
|
---|
2153 |
|
---|
2154 | /*
|
---|
2155 | * Check the condition up front, before doing the wait-for-event allocations.
|
---|
2156 | */
|
---|
2157 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
2158 | rc = vbdgCheckWaitEventCondition(pDevExt, pSession, pInfo, iEvent, fReqEvents);
|
---|
2159 | if (rc == VINF_SUCCESS)
|
---|
2160 | return rc;
|
---|
2161 |
|
---|
2162 | if (!cMsTimeout)
|
---|
2163 | {
|
---|
2164 | LogFlow(("VBOXGUEST_IOCTL_WAITEVENT: returns VERR_TIMEOUT\n"));
|
---|
2165 | return VERR_TIMEOUT;
|
---|
2166 | }
|
---|
2167 |
|
---|
2168 | pWait = vgdrvWaitAlloc(pDevExt, pSession);
|
---|
2169 | if (!pWait)
|
---|
2170 | return VERR_NO_MEMORY;
|
---|
2171 | pWait->fReqEvents = fReqEvents;
|
---|
2172 |
|
---|
2173 | /*
|
---|
2174 | * We've got the wait entry now, re-enter the spinlock and check for the condition.
|
---|
2175 | * If the wait condition is met, return.
|
---|
2176 | * Otherwise enter into the list and go to sleep waiting for the ISR to signal us.
|
---|
2177 | */
|
---|
2178 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
2179 | RTListAppend(&pDevExt->WaitList, &pWait->ListNode);
|
---|
2180 | rc = vbdgCheckWaitEventCondition(pDevExt, pSession, pInfo, iEvent, fReqEvents);
|
---|
2181 | if (rc == VINF_SUCCESS)
|
---|
2182 | {
|
---|
2183 | vgdrvWaitFreeUnlocked(pDevExt, pWait);
|
---|
2184 | return rc;
|
---|
2185 | }
|
---|
2186 |
|
---|
2187 | if (fInterruptible)
|
---|
2188 | rc = RTSemEventMultiWaitNoResume(pWait->Event, cMsTimeout == UINT32_MAX ? RT_INDEFINITE_WAIT : cMsTimeout);
|
---|
2189 | else
|
---|
2190 | rc = RTSemEventMultiWait(pWait->Event, cMsTimeout == UINT32_MAX ? RT_INDEFINITE_WAIT : cMsTimeout);
|
---|
2191 |
|
---|
2192 | /*
|
---|
2193 | * There is one special case here and that's when the semaphore is
|
---|
2194 | * destroyed upon device driver unload. This shouldn't happen of course,
|
---|
2195 | * but in case it does, just get out of here ASAP.
|
---|
2196 | */
|
---|
2197 | if (rc == VERR_SEM_DESTROYED)
|
---|
2198 | return rc;
|
---|
2199 |
|
---|
2200 | /*
|
---|
2201 | * Unlink the wait item and dispose of it.
|
---|
2202 | */
|
---|
2203 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
2204 | fResEvents = pWait->fResEvents;
|
---|
2205 | vgdrvWaitFreeLocked(pDevExt, pWait);
|
---|
2206 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2207 |
|
---|
2208 | /*
|
---|
2209 | * Now deal with the return code.
|
---|
2210 | */
|
---|
2211 | if ( fResEvents
|
---|
2212 | && fResEvents != UINT32_MAX)
|
---|
2213 | {
|
---|
2214 | pInfo->u.Out.fEvents = fResEvents;
|
---|
2215 | if (fReqEvents & ~((uint32_t)1 << iEvent))
|
---|
2216 | LogFlow(("VBOXGUEST_IOCTL_WAITEVENT: returns %#x\n", pInfo->u.Out.fEvents));
|
---|
2217 | else
|
---|
2218 | LogFlow(("VBOXGUEST_IOCTL_WAITEVENT: returns %#x/%d\n", pInfo->u.Out.fEvents, iEvent));
|
---|
2219 | rc = VINF_SUCCESS;
|
---|
2220 | }
|
---|
2221 | else if ( fResEvents == UINT32_MAX
|
---|
2222 | || rc == VERR_INTERRUPTED)
|
---|
2223 | {
|
---|
2224 | rc = VERR_INTERRUPTED;
|
---|
2225 | LogFlow(("VBOXGUEST_IOCTL_WAITEVENT: returns VERR_INTERRUPTED\n"));
|
---|
2226 | }
|
---|
2227 | else if (rc == VERR_TIMEOUT)
|
---|
2228 | LogFlow(("VBOXGUEST_IOCTL_WAITEVENT: returns VERR_TIMEOUT (2)\n"));
|
---|
2229 | else
|
---|
2230 | {
|
---|
2231 | if (RT_SUCCESS(rc))
|
---|
2232 | {
|
---|
2233 | LogRelMax(32, ("VBOXGUEST_IOCTL_WAITEVENT: returns %Rrc but no events!\n", rc));
|
---|
2234 | rc = VERR_INTERNAL_ERROR;
|
---|
2235 | }
|
---|
2236 | LogFlow(("VBOXGUEST_IOCTL_WAITEVENT: returns %Rrc\n", rc));
|
---|
2237 | }
|
---|
2238 |
|
---|
2239 | return rc;
|
---|
2240 | }
|
---|
2241 |
|
---|
2242 |
|
---|
2243 | /** @todo the semantics of this IoCtl have been tightened, so that no calls to
|
---|
2244 | * VBOXGUEST_IOCTL_WAITEVENT are allowed in a session after it has been
|
---|
2245 | * called. Change the code to make calls to VBOXGUEST_IOCTL_WAITEVENT made
|
---|
2246 | * after that to return VERR_INTERRUPTED or something appropriate. */
|
---|
2247 | static int vgdrvIoCtl_CancelAllWaitEvents(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession)
|
---|
2248 | {
|
---|
2249 | PVBOXGUESTWAIT pWait;
|
---|
2250 | PVBOXGUESTWAIT pSafe;
|
---|
2251 | int rc = 0;
|
---|
2252 | /* Was as least one WAITEVENT in process for this session? If not we
|
---|
2253 | * set a flag that the next call should be interrupted immediately. This
|
---|
2254 | * is needed so that a user thread can reliably interrupt another one in a
|
---|
2255 | * WAITEVENT loop. */
|
---|
2256 | bool fCancelledOne = false;
|
---|
2257 |
|
---|
2258 | LogFlow(("VBOXGUEST_IOCTL_CANCEL_ALL_WAITEVENTS\n"));
|
---|
2259 |
|
---|
2260 | /*
|
---|
2261 | * Walk the event list and wake up anyone with a matching session.
|
---|
2262 | */
|
---|
2263 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
2264 | RTListForEachSafe(&pDevExt->WaitList, pWait, pSafe, VBOXGUESTWAIT, ListNode)
|
---|
2265 | {
|
---|
2266 | if (pWait->pSession == pSession)
|
---|
2267 | {
|
---|
2268 | fCancelledOne = true;
|
---|
2269 | pWait->fResEvents = UINT32_MAX;
|
---|
2270 | RTListNodeRemove(&pWait->ListNode);
|
---|
2271 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
2272 | RTListAppend(&pDevExt->WakeUpList, &pWait->ListNode);
|
---|
2273 | #else
|
---|
2274 | rc |= RTSemEventMultiSignal(pWait->Event);
|
---|
2275 | RTListAppend(&pDevExt->WokenUpList, &pWait->ListNode);
|
---|
2276 | #endif
|
---|
2277 | }
|
---|
2278 | }
|
---|
2279 | if (!fCancelledOne)
|
---|
2280 | pSession->fPendingCancelWaitEvents = true;
|
---|
2281 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2282 | Assert(rc == 0);
|
---|
2283 | NOREF(rc);
|
---|
2284 |
|
---|
2285 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
2286 | VGDrvCommonWaitDoWakeUps(pDevExt);
|
---|
2287 | #endif
|
---|
2288 |
|
---|
2289 | return VINF_SUCCESS;
|
---|
2290 | }
|
---|
2291 |
|
---|
2292 |
|
---|
2293 | /**
|
---|
2294 | * Checks if the VMM request is allowed in the context of the given session.
|
---|
2295 | *
|
---|
2296 | * @returns VINF_SUCCESS or VERR_PERMISSION_DENIED.
|
---|
2297 | * @param pDevExt The device extension.
|
---|
2298 | * @param pSession The calling session.
|
---|
2299 | * @param enmType The request type.
|
---|
2300 | * @param pReqHdr The request.
|
---|
2301 | */
|
---|
2302 | static int vgdrvCheckIfVmmReqIsAllowed(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, VMMDevRequestType enmType,
|
---|
2303 | VMMDevRequestHeader const *pReqHdr)
|
---|
2304 | {
|
---|
2305 | /*
|
---|
2306 | * Categorize the request being made.
|
---|
2307 | */
|
---|
2308 | /** @todo This need quite some more work! */
|
---|
2309 | enum
|
---|
2310 | {
|
---|
2311 | kLevel_Invalid, kLevel_NoOne, kLevel_OnlyVBoxGuest, kLevel_OnlyKernel, kLevel_TrustedUsers, kLevel_AllUsers
|
---|
2312 | } enmRequired;
|
---|
2313 | RT_NOREF1(pDevExt);
|
---|
2314 |
|
---|
2315 | switch (enmType)
|
---|
2316 | {
|
---|
2317 | /*
|
---|
2318 | * Deny access to anything we don't know or provide specialized I/O controls for.
|
---|
2319 | */
|
---|
2320 | #ifdef VBOX_WITH_HGCM
|
---|
2321 | case VMMDevReq_HGCMConnect:
|
---|
2322 | case VMMDevReq_HGCMDisconnect:
|
---|
2323 | # ifdef VBOX_WITH_64_BITS_GUESTS
|
---|
2324 | case VMMDevReq_HGCMCall64:
|
---|
2325 | # endif
|
---|
2326 | case VMMDevReq_HGCMCall32:
|
---|
2327 | case VMMDevReq_HGCMCancel:
|
---|
2328 | case VMMDevReq_HGCMCancel2:
|
---|
2329 | #endif /* VBOX_WITH_HGCM */
|
---|
2330 | case VMMDevReq_SetGuestCapabilities:
|
---|
2331 | default:
|
---|
2332 | enmRequired = kLevel_NoOne;
|
---|
2333 | break;
|
---|
2334 |
|
---|
2335 | /*
|
---|
2336 | * There are a few things only this driver can do (and it doesn't use
|
---|
2337 | * the VMMRequst I/O control route anyway, but whatever).
|
---|
2338 | */
|
---|
2339 | case VMMDevReq_ReportGuestInfo:
|
---|
2340 | case VMMDevReq_ReportGuestInfo2:
|
---|
2341 | case VMMDevReq_GetHypervisorInfo:
|
---|
2342 | case VMMDevReq_SetHypervisorInfo:
|
---|
2343 | case VMMDevReq_RegisterPatchMemory:
|
---|
2344 | case VMMDevReq_DeregisterPatchMemory:
|
---|
2345 | case VMMDevReq_GetMemBalloonChangeRequest:
|
---|
2346 | enmRequired = kLevel_OnlyVBoxGuest;
|
---|
2347 | break;
|
---|
2348 |
|
---|
2349 | /*
|
---|
2350 | * Trusted users apps only.
|
---|
2351 | */
|
---|
2352 | case VMMDevReq_QueryCredentials:
|
---|
2353 | case VMMDevReq_ReportCredentialsJudgement:
|
---|
2354 | case VMMDevReq_RegisterSharedModule:
|
---|
2355 | case VMMDevReq_UnregisterSharedModule:
|
---|
2356 | case VMMDevReq_WriteCoreDump:
|
---|
2357 | case VMMDevReq_GetCpuHotPlugRequest:
|
---|
2358 | case VMMDevReq_SetCpuHotPlugStatus:
|
---|
2359 | case VMMDevReq_CheckSharedModules:
|
---|
2360 | case VMMDevReq_GetPageSharingStatus:
|
---|
2361 | case VMMDevReq_DebugIsPageShared:
|
---|
2362 | case VMMDevReq_ReportGuestStats:
|
---|
2363 | case VMMDevReq_ReportGuestUserState:
|
---|
2364 | case VMMDevReq_GetStatisticsChangeRequest:
|
---|
2365 | case VMMDevReq_ChangeMemBalloon:
|
---|
2366 | enmRequired = kLevel_TrustedUsers;
|
---|
2367 | break;
|
---|
2368 |
|
---|
2369 | /*
|
---|
2370 | * Anyone.
|
---|
2371 | */
|
---|
2372 | case VMMDevReq_GetMouseStatus:
|
---|
2373 | case VMMDevReq_SetMouseStatus:
|
---|
2374 | case VMMDevReq_SetPointerShape:
|
---|
2375 | case VMMDevReq_GetHostVersion:
|
---|
2376 | case VMMDevReq_Idle:
|
---|
2377 | case VMMDevReq_GetHostTime:
|
---|
2378 | case VMMDevReq_SetPowerStatus:
|
---|
2379 | case VMMDevReq_AcknowledgeEvents:
|
---|
2380 | case VMMDevReq_CtlGuestFilterMask:
|
---|
2381 | case VMMDevReq_ReportGuestStatus:
|
---|
2382 | case VMMDevReq_GetDisplayChangeRequest:
|
---|
2383 | case VMMDevReq_VideoModeSupported:
|
---|
2384 | case VMMDevReq_GetHeightReduction:
|
---|
2385 | case VMMDevReq_GetDisplayChangeRequest2:
|
---|
2386 | case VMMDevReq_VideoModeSupported2:
|
---|
2387 | case VMMDevReq_VideoAccelEnable:
|
---|
2388 | case VMMDevReq_VideoAccelFlush:
|
---|
2389 | case VMMDevReq_VideoSetVisibleRegion:
|
---|
2390 | case VMMDevReq_VideoUpdateMonitorPositions:
|
---|
2391 | case VMMDevReq_GetDisplayChangeRequestEx:
|
---|
2392 | case VMMDevReq_GetDisplayChangeRequestMulti:
|
---|
2393 | case VMMDevReq_GetSeamlessChangeRequest:
|
---|
2394 | case VMMDevReq_GetVRDPChangeRequest:
|
---|
2395 | case VMMDevReq_LogString:
|
---|
2396 | case VMMDevReq_GetSessionId:
|
---|
2397 | enmRequired = kLevel_AllUsers;
|
---|
2398 | break;
|
---|
2399 |
|
---|
2400 | /*
|
---|
2401 | * Depends on the request parameters...
|
---|
2402 | */
|
---|
2403 | /** @todo this have to be changed into an I/O control and the facilities
|
---|
2404 | * tracked in the session so they can automatically be failed when the
|
---|
2405 | * session terminates without reporting the new status.
|
---|
2406 | *
|
---|
2407 | * The information presented by IGuest is not reliable without this! */
|
---|
2408 | case VMMDevReq_ReportGuestCapabilities:
|
---|
2409 | switch (((VMMDevReportGuestStatus const *)pReqHdr)->guestStatus.facility)
|
---|
2410 | {
|
---|
2411 | case VBoxGuestFacilityType_All:
|
---|
2412 | case VBoxGuestFacilityType_VBoxGuestDriver:
|
---|
2413 | enmRequired = kLevel_OnlyVBoxGuest;
|
---|
2414 | break;
|
---|
2415 | case VBoxGuestFacilityType_VBoxService:
|
---|
2416 | enmRequired = kLevel_TrustedUsers;
|
---|
2417 | break;
|
---|
2418 | case VBoxGuestFacilityType_VBoxTrayClient:
|
---|
2419 | case VBoxGuestFacilityType_Seamless:
|
---|
2420 | case VBoxGuestFacilityType_Graphics:
|
---|
2421 | default:
|
---|
2422 | enmRequired = kLevel_AllUsers;
|
---|
2423 | break;
|
---|
2424 | }
|
---|
2425 | break;
|
---|
2426 | }
|
---|
2427 |
|
---|
2428 | /*
|
---|
2429 | * Check against the session.
|
---|
2430 | */
|
---|
2431 | switch (enmRequired)
|
---|
2432 | {
|
---|
2433 | default:
|
---|
2434 | case kLevel_NoOne:
|
---|
2435 | break;
|
---|
2436 | case kLevel_OnlyVBoxGuest:
|
---|
2437 | case kLevel_OnlyKernel:
|
---|
2438 | if (pSession->R0Process == NIL_RTR0PROCESS)
|
---|
2439 | return VINF_SUCCESS;
|
---|
2440 | break;
|
---|
2441 | case kLevel_TrustedUsers:
|
---|
2442 | if (pSession->fUserSession)
|
---|
2443 | break;
|
---|
2444 | RT_FALL_THRU();
|
---|
2445 | case kLevel_AllUsers:
|
---|
2446 | return VINF_SUCCESS;
|
---|
2447 | }
|
---|
2448 |
|
---|
2449 | return VERR_PERMISSION_DENIED;
|
---|
2450 | }
|
---|
2451 |
|
---|
2452 | static int vgdrvIoCtl_VMMDevRequest(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
|
---|
2453 | VMMDevRequestHeader *pReqHdr, size_t cbData)
|
---|
2454 | {
|
---|
2455 | int rc;
|
---|
2456 | VMMDevRequestHeader *pReqCopy;
|
---|
2457 |
|
---|
2458 | /*
|
---|
2459 | * Validate the header and request size.
|
---|
2460 | */
|
---|
2461 | const VMMDevRequestType enmType = pReqHdr->requestType;
|
---|
2462 | const uint32_t cbReq = pReqHdr->size;
|
---|
2463 | const uint32_t cbMinSize = (uint32_t)vmmdevGetRequestSize(enmType);
|
---|
2464 |
|
---|
2465 | LogFlow(("VBOXGUEST_IOCTL_VMMREQUEST: type %d\n", pReqHdr->requestType));
|
---|
2466 |
|
---|
2467 | if (cbReq < cbMinSize)
|
---|
2468 | {
|
---|
2469 | LogRel(("VBOXGUEST_IOCTL_VMMREQUEST: invalid hdr size %#x, expected >= %#x; type=%#x!!\n",
|
---|
2470 | cbReq, cbMinSize, enmType));
|
---|
2471 | return VERR_INVALID_PARAMETER;
|
---|
2472 | }
|
---|
2473 | if (cbReq > cbData)
|
---|
2474 | {
|
---|
2475 | LogRel(("VBOXGUEST_IOCTL_VMMREQUEST: invalid size %#x, expected >= %#x (hdr); type=%#x!!\n",
|
---|
2476 | cbData, cbReq, enmType));
|
---|
2477 | return VERR_INVALID_PARAMETER;
|
---|
2478 | }
|
---|
2479 | rc = VbglGR0Verify(pReqHdr, cbData);
|
---|
2480 | if (RT_FAILURE(rc))
|
---|
2481 | {
|
---|
2482 | Log(("VBOXGUEST_IOCTL_VMMREQUEST: invalid header: size %#x, expected >= %#x (hdr); type=%#x; rc=%Rrc!!\n",
|
---|
2483 | cbData, cbReq, enmType, rc));
|
---|
2484 | return rc;
|
---|
2485 | }
|
---|
2486 |
|
---|
2487 | rc = vgdrvCheckIfVmmReqIsAllowed(pDevExt, pSession, enmType, pReqHdr);
|
---|
2488 | if (RT_FAILURE(rc))
|
---|
2489 | {
|
---|
2490 | Log(("VBOXGUEST_IOCTL_VMMREQUEST: Operation not allowed! type=%#x rc=%Rrc\n", enmType, rc));
|
---|
2491 | return rc;
|
---|
2492 | }
|
---|
2493 |
|
---|
2494 | /*
|
---|
2495 | * Make a copy of the request in the physical memory heap so
|
---|
2496 | * the VBoxGuestLibrary can more easily deal with the request.
|
---|
2497 | * (This is really a waste of time since the OS or the OS specific
|
---|
2498 | * code has already buffered or locked the input/output buffer, but
|
---|
2499 | * it does makes things a bit simpler wrt to phys address.)
|
---|
2500 | */
|
---|
2501 | rc = VbglR0GRAlloc(&pReqCopy, cbReq, enmType);
|
---|
2502 | if (RT_FAILURE(rc))
|
---|
2503 | {
|
---|
2504 | Log(("VBOXGUEST_IOCTL_VMMREQUEST: failed to allocate %u (%#x) bytes to cache the request. rc=%Rrc!!\n",
|
---|
2505 | cbReq, cbReq, rc));
|
---|
2506 | return rc;
|
---|
2507 | }
|
---|
2508 | memcpy(pReqCopy, pReqHdr, cbReq);
|
---|
2509 | Assert(pReqCopy->reserved1 == cbReq);
|
---|
2510 | pReqCopy->reserved1 = 0; /* VGDrvCommonIoCtl or caller sets cbOut, so clear it. */
|
---|
2511 | pReqCopy->fRequestor = pSession->fRequestor;
|
---|
2512 |
|
---|
2513 | if (enmType == VMMDevReq_GetMouseStatus) /* clear poll condition. */
|
---|
2514 | pSession->u32MousePosChangedSeq = ASMAtomicUoReadU32(&pDevExt->u32MousePosChangedSeq);
|
---|
2515 |
|
---|
2516 | rc = VbglR0GRPerform(pReqCopy);
|
---|
2517 | if ( RT_SUCCESS(rc)
|
---|
2518 | && RT_SUCCESS(pReqCopy->rc))
|
---|
2519 | {
|
---|
2520 | Assert(rc != VINF_HGCM_ASYNC_EXECUTE);
|
---|
2521 | Assert(pReqCopy->rc != VINF_HGCM_ASYNC_EXECUTE);
|
---|
2522 |
|
---|
2523 | memcpy(pReqHdr, pReqCopy, cbReq);
|
---|
2524 | pReqHdr->reserved1 = cbReq; /* preserve cbOut */
|
---|
2525 | }
|
---|
2526 | else if (RT_FAILURE(rc))
|
---|
2527 | Log(("VBOXGUEST_IOCTL_VMMREQUEST: VbglR0GRPerform - rc=%Rrc!\n", rc));
|
---|
2528 | else
|
---|
2529 | {
|
---|
2530 | Log(("VBOXGUEST_IOCTL_VMMREQUEST: request execution failed; VMMDev rc=%Rrc!\n", pReqCopy->rc));
|
---|
2531 | rc = pReqCopy->rc;
|
---|
2532 | }
|
---|
2533 |
|
---|
2534 | VbglR0GRFree(pReqCopy);
|
---|
2535 | return rc;
|
---|
2536 | }
|
---|
2537 |
|
---|
2538 |
|
---|
2539 | #ifdef VBOX_WITH_HGCM
|
---|
2540 |
|
---|
2541 | AssertCompile(RT_INDEFINITE_WAIT == (uint32_t)RT_INDEFINITE_WAIT); /* assumed by code below */
|
---|
2542 |
|
---|
2543 | /** Worker for vgdrvHgcmAsyncWaitCallback*. */
|
---|
2544 | static int vgdrvHgcmAsyncWaitCallbackWorker(VMMDevHGCMRequestHeader volatile *pHdr, PVBOXGUESTDEVEXT pDevExt,
|
---|
2545 | bool fInterruptible, uint32_t cMillies)
|
---|
2546 | {
|
---|
2547 | int rc;
|
---|
2548 |
|
---|
2549 | /*
|
---|
2550 | * Check to see if the condition was met by the time we got here.
|
---|
2551 | *
|
---|
2552 | * We create a simple poll loop here for dealing with out-of-memory
|
---|
2553 | * conditions since the caller isn't necessarily able to deal with
|
---|
2554 | * us returning too early.
|
---|
2555 | */
|
---|
2556 | PVBOXGUESTWAIT pWait;
|
---|
2557 | for (;;)
|
---|
2558 | {
|
---|
2559 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
2560 | if ((pHdr->fu32Flags & VBOX_HGCM_REQ_DONE) != 0)
|
---|
2561 | {
|
---|
2562 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2563 | return VINF_SUCCESS;
|
---|
2564 | }
|
---|
2565 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2566 |
|
---|
2567 | pWait = vgdrvWaitAlloc(pDevExt, NULL);
|
---|
2568 | if (pWait)
|
---|
2569 | break;
|
---|
2570 | if (fInterruptible)
|
---|
2571 | return VERR_INTERRUPTED;
|
---|
2572 | RTThreadSleep(1);
|
---|
2573 | }
|
---|
2574 | pWait->fReqEvents = VMMDEV_EVENT_HGCM;
|
---|
2575 | pWait->pHGCMReq = pHdr;
|
---|
2576 |
|
---|
2577 | /*
|
---|
2578 | * Re-enter the spinlock and re-check for the condition.
|
---|
2579 | * If the condition is met, return.
|
---|
2580 | * Otherwise link us into the HGCM wait list and go to sleep.
|
---|
2581 | */
|
---|
2582 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
2583 | RTListAppend(&pDevExt->HGCMWaitList, &pWait->ListNode);
|
---|
2584 | if ((pHdr->fu32Flags & VBOX_HGCM_REQ_DONE) != 0)
|
---|
2585 | {
|
---|
2586 | vgdrvWaitFreeLocked(pDevExt, pWait);
|
---|
2587 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2588 | return VINF_SUCCESS;
|
---|
2589 | }
|
---|
2590 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
2591 |
|
---|
2592 | if (fInterruptible)
|
---|
2593 | rc = RTSemEventMultiWaitNoResume(pWait->Event, cMillies);
|
---|
2594 | else
|
---|
2595 | rc = RTSemEventMultiWait(pWait->Event, cMillies);
|
---|
2596 | if (rc == VERR_SEM_DESTROYED)
|
---|
2597 | return rc;
|
---|
2598 |
|
---|
2599 | /*
|
---|
2600 | * Unlink, free and return.
|
---|
2601 | */
|
---|
2602 | if ( RT_FAILURE(rc)
|
---|
2603 | && rc != VERR_TIMEOUT
|
---|
2604 | && ( !fInterruptible
|
---|
2605 | || rc != VERR_INTERRUPTED))
|
---|
2606 | LogRel(("vgdrvHgcmAsyncWaitCallback: wait failed! %Rrc\n", rc));
|
---|
2607 |
|
---|
2608 | vgdrvWaitFreeUnlocked(pDevExt, pWait);
|
---|
2609 | return rc;
|
---|
2610 | }
|
---|
2611 |
|
---|
2612 |
|
---|
2613 | /**
|
---|
2614 | * This is a callback for dealing with async waits.
|
---|
2615 | *
|
---|
2616 | * It operates in a manner similar to vgdrvIoCtl_WaitEvent.
|
---|
2617 | */
|
---|
2618 | static DECLCALLBACK(int) vgdrvHgcmAsyncWaitCallback(VMMDevHGCMRequestHeader *pHdr, void *pvUser, uint32_t u32User)
|
---|
2619 | {
|
---|
2620 | PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pvUser;
|
---|
2621 | LogFlow(("vgdrvHgcmAsyncWaitCallback: requestType=%d\n", pHdr->header.requestType));
|
---|
2622 | return vgdrvHgcmAsyncWaitCallbackWorker((VMMDevHGCMRequestHeader volatile *)pHdr, pDevExt,
|
---|
2623 | false /* fInterruptible */, u32User /* cMillies */);
|
---|
2624 | }
|
---|
2625 |
|
---|
2626 |
|
---|
2627 | /**
|
---|
2628 | * This is a callback for dealing with async waits with a timeout.
|
---|
2629 | *
|
---|
2630 | * It operates in a manner similar to vgdrvIoCtl_WaitEvent.
|
---|
2631 | */
|
---|
2632 | static DECLCALLBACK(int) vgdrvHgcmAsyncWaitCallbackInterruptible(VMMDevHGCMRequestHeader *pHdr, void *pvUser, uint32_t u32User)
|
---|
2633 | {
|
---|
2634 | PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pvUser;
|
---|
2635 | LogFlow(("vgdrvHgcmAsyncWaitCallbackInterruptible: requestType=%d\n", pHdr->header.requestType));
|
---|
2636 | return vgdrvHgcmAsyncWaitCallbackWorker((VMMDevHGCMRequestHeader volatile *)pHdr, pDevExt,
|
---|
2637 | true /* fInterruptible */, u32User /* cMillies */);
|
---|
2638 | }
|
---|
2639 |
|
---|
2640 |
|
---|
2641 | static int vgdrvIoCtl_HGCMConnect(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCHGCMCONNECT pInfo)
|
---|
2642 | {
|
---|
2643 | int rc;
|
---|
2644 | HGCMCLIENTID idClient = 0;
|
---|
2645 |
|
---|
2646 | /*
|
---|
2647 | * The VbglHGCMConnect call will invoke the callback if the HGCM
|
---|
2648 | * call is performed in an ASYNC fashion. The function is not able
|
---|
2649 | * to deal with cancelled requests.
|
---|
2650 | */
|
---|
2651 | Log(("VBOXGUEST_IOCTL_HGCM_CONNECT: %.128s\n",
|
---|
2652 | pInfo->u.In.Loc.type == VMMDevHGCMLoc_LocalHost || pInfo->u.In.Loc.type == VMMDevHGCMLoc_LocalHost_Existing
|
---|
2653 | ? pInfo->u.In.Loc.u.host.achName : "<not local host>"));
|
---|
2654 |
|
---|
2655 | rc = VbglR0HGCMInternalConnect(&pInfo->u.In.Loc, pSession->fRequestor, &idClient,
|
---|
2656 | vgdrvHgcmAsyncWaitCallback, pDevExt, RT_INDEFINITE_WAIT);
|
---|
2657 | Log(("VBOXGUEST_IOCTL_HGCM_CONNECT: idClient=%RX32 (rc=%Rrc)\n", idClient, rc));
|
---|
2658 | if (RT_SUCCESS(rc))
|
---|
2659 | {
|
---|
2660 | /*
|
---|
2661 | * Append the client id to the client id table.
|
---|
2662 | * If the table has somehow become filled up, we'll disconnect the session.
|
---|
2663 | */
|
---|
2664 | unsigned i;
|
---|
2665 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
2666 | for (i = 0; i < RT_ELEMENTS(pSession->aHGCMClientIds); i++)
|
---|
2667 | if (!pSession->aHGCMClientIds[i])
|
---|
2668 | {
|
---|
2669 | pSession->aHGCMClientIds[i] = idClient;
|
---|
2670 | break;
|
---|
2671 | }
|
---|
2672 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
2673 | if (i >= RT_ELEMENTS(pSession->aHGCMClientIds))
|
---|
2674 | {
|
---|
2675 | LogRelMax(32, ("VBOXGUEST_IOCTL_HGCM_CONNECT: too many HGCMConnect calls for one session!\n"));
|
---|
2676 | VbglR0HGCMInternalDisconnect(idClient, pSession->fRequestor, vgdrvHgcmAsyncWaitCallback, pDevExt, RT_INDEFINITE_WAIT);
|
---|
2677 |
|
---|
2678 | pInfo->u.Out.idClient = 0;
|
---|
2679 | return VERR_TOO_MANY_OPEN_FILES;
|
---|
2680 | }
|
---|
2681 | }
|
---|
2682 | pInfo->u.Out.idClient = idClient;
|
---|
2683 | return rc;
|
---|
2684 | }
|
---|
2685 |
|
---|
2686 |
|
---|
2687 | static int vgdrvIoCtl_HGCMDisconnect(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCHGCMDISCONNECT pInfo)
|
---|
2688 | {
|
---|
2689 | /*
|
---|
2690 | * Validate the client id and invalidate its entry while we're in the call.
|
---|
2691 | */
|
---|
2692 | int rc;
|
---|
2693 | const uint32_t idClient = pInfo->u.In.idClient;
|
---|
2694 | unsigned i;
|
---|
2695 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
2696 | for (i = 0; i < RT_ELEMENTS(pSession->aHGCMClientIds); i++)
|
---|
2697 | if (pSession->aHGCMClientIds[i] == idClient)
|
---|
2698 | {
|
---|
2699 | pSession->aHGCMClientIds[i] = UINT32_MAX;
|
---|
2700 | break;
|
---|
2701 | }
|
---|
2702 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
2703 | if (i >= RT_ELEMENTS(pSession->aHGCMClientIds))
|
---|
2704 | {
|
---|
2705 | LogRelMax(32, ("VBOXGUEST_IOCTL_HGCM_DISCONNECT: idClient=%RX32\n", idClient));
|
---|
2706 | return VERR_INVALID_HANDLE;
|
---|
2707 | }
|
---|
2708 |
|
---|
2709 | /*
|
---|
2710 | * The VbglHGCMConnect call will invoke the callback if the HGCM
|
---|
2711 | * call is performed in an ASYNC fashion. The function is not able
|
---|
2712 | * to deal with cancelled requests.
|
---|
2713 | */
|
---|
2714 | Log(("VBOXGUEST_IOCTL_HGCM_DISCONNECT: idClient=%RX32\n", idClient));
|
---|
2715 | rc = VbglR0HGCMInternalDisconnect(idClient, pSession->fRequestor, vgdrvHgcmAsyncWaitCallback, pDevExt, RT_INDEFINITE_WAIT);
|
---|
2716 | LogFlow(("VBOXGUEST_IOCTL_HGCM_DISCONNECT: rc=%Rrc\n", rc));
|
---|
2717 |
|
---|
2718 | /* Update the client id array according to the result. */
|
---|
2719 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
2720 | if (pSession->aHGCMClientIds[i] == UINT32_MAX)
|
---|
2721 | pSession->aHGCMClientIds[i] = RT_SUCCESS(rc) ? 0 : idClient;
|
---|
2722 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
2723 |
|
---|
2724 | return rc;
|
---|
2725 | }
|
---|
2726 |
|
---|
2727 |
|
---|
2728 | static int vgdrvIoCtl_HGCMCallInner(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCHGCMCALL pInfo,
|
---|
2729 | uint32_t cMillies, bool fInterruptible, bool f32bit, bool fUserData,
|
---|
2730 | size_t cbExtra, size_t cbData)
|
---|
2731 | {
|
---|
2732 | const uint32_t u32ClientId = pInfo->u32ClientID;
|
---|
2733 | uint32_t fFlags;
|
---|
2734 | size_t cbActual;
|
---|
2735 | unsigned i;
|
---|
2736 | int rc;
|
---|
2737 |
|
---|
2738 | /*
|
---|
2739 | * Some more validations.
|
---|
2740 | */
|
---|
2741 | if (RT_LIKELY(pInfo->cParms <= VMMDEV_MAX_HGCM_PARMS)) /* (Just make sure it doesn't overflow the next check.) */
|
---|
2742 | { /* likely */}
|
---|
2743 | else
|
---|
2744 | {
|
---|
2745 | LogRel(("VBOXGUEST_IOCTL_HGCM_CALL: cParm=%RX32 is not sane\n", pInfo->cParms));
|
---|
2746 | return VERR_INVALID_PARAMETER;
|
---|
2747 | }
|
---|
2748 |
|
---|
2749 | cbActual = cbExtra + sizeof(*pInfo);
|
---|
2750 | #ifdef RT_ARCH_AMD64
|
---|
2751 | if (f32bit)
|
---|
2752 | cbActual += pInfo->cParms * sizeof(HGCMFunctionParameter32);
|
---|
2753 | else
|
---|
2754 | #endif
|
---|
2755 | cbActual += pInfo->cParms * sizeof(HGCMFunctionParameter);
|
---|
2756 | if (RT_LIKELY(cbData >= cbActual))
|
---|
2757 | { /* likely */}
|
---|
2758 | else
|
---|
2759 | {
|
---|
2760 | LogRel(("VBOXGUEST_IOCTL_HGCM_CALL: cbData=%#zx (%zu) required size is %#zx (%zu)\n",
|
---|
2761 | cbData, cbData, cbActual, cbActual));
|
---|
2762 | return VERR_INVALID_PARAMETER;
|
---|
2763 | }
|
---|
2764 | pInfo->Hdr.cbOut = (uint32_t)cbActual;
|
---|
2765 |
|
---|
2766 | /*
|
---|
2767 | * Validate the client id.
|
---|
2768 | */
|
---|
2769 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
2770 | for (i = 0; i < RT_ELEMENTS(pSession->aHGCMClientIds); i++)
|
---|
2771 | if (pSession->aHGCMClientIds[i] == u32ClientId)
|
---|
2772 | break;
|
---|
2773 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
2774 | if (RT_LIKELY(i < RT_ELEMENTS(pSession->aHGCMClientIds)))
|
---|
2775 | { /* likely */}
|
---|
2776 | else
|
---|
2777 | {
|
---|
2778 | LogRelMax(32, ("VBOXGUEST_IOCTL_HGCM_CALL: Invalid handle. u32Client=%RX32\n", u32ClientId));
|
---|
2779 | return VERR_INVALID_HANDLE;
|
---|
2780 | }
|
---|
2781 |
|
---|
2782 | /*
|
---|
2783 | * The VbglHGCMCall call will invoke the callback if the HGCM
|
---|
2784 | * call is performed in an ASYNC fashion. This function can
|
---|
2785 | * deal with cancelled requests, so we let user more requests
|
---|
2786 | * be interruptible (should add a flag for this later I guess).
|
---|
2787 | */
|
---|
2788 | LogFlow(("VBOXGUEST_IOCTL_HGCM_CALL: u32Client=%RX32\n", pInfo->u32ClientID));
|
---|
2789 | fFlags = !fUserData && pSession->R0Process == NIL_RTR0PROCESS ? VBGLR0_HGCMCALL_F_KERNEL : VBGLR0_HGCMCALL_F_USER;
|
---|
2790 | uint32_t cbInfo = (uint32_t)(cbData - cbExtra);
|
---|
2791 | #ifdef RT_ARCH_AMD64
|
---|
2792 | if (f32bit)
|
---|
2793 | {
|
---|
2794 | if (fInterruptible)
|
---|
2795 | rc = VbglR0HGCMInternalCall32(pInfo, cbInfo, fFlags, pSession->fRequestor,
|
---|
2796 | vgdrvHgcmAsyncWaitCallbackInterruptible, pDevExt, cMillies);
|
---|
2797 | else
|
---|
2798 | rc = VbglR0HGCMInternalCall32(pInfo, cbInfo, fFlags, pSession->fRequestor,
|
---|
2799 | vgdrvHgcmAsyncWaitCallback, pDevExt, cMillies);
|
---|
2800 | }
|
---|
2801 | else
|
---|
2802 | #endif
|
---|
2803 | {
|
---|
2804 | if (fInterruptible)
|
---|
2805 | rc = VbglR0HGCMInternalCall(pInfo, cbInfo, fFlags, pSession->fRequestor,
|
---|
2806 | vgdrvHgcmAsyncWaitCallbackInterruptible, pDevExt, cMillies);
|
---|
2807 | else
|
---|
2808 | rc = VbglR0HGCMInternalCall(pInfo, cbInfo, fFlags, pSession->fRequestor,
|
---|
2809 | vgdrvHgcmAsyncWaitCallback, pDevExt, cMillies);
|
---|
2810 | }
|
---|
2811 | if (RT_SUCCESS(rc))
|
---|
2812 | {
|
---|
2813 | rc = pInfo->Hdr.rc;
|
---|
2814 | LogFlow(("VBOXGUEST_IOCTL_HGCM_CALL: result=%Rrc\n", rc));
|
---|
2815 | }
|
---|
2816 | else
|
---|
2817 | {
|
---|
2818 | if ( rc != VERR_INTERRUPTED
|
---|
2819 | && rc != VERR_TIMEOUT)
|
---|
2820 | LogRelMax(32, ("VBOXGUEST_IOCTL_HGCM_CALL: %s Failed. rc=%Rrc (Hdr.rc=%Rrc).\n", f32bit ? "32" : "64", rc, pInfo->Hdr.rc));
|
---|
2821 | else
|
---|
2822 | Log(("VBOXGUEST_IOCTL_HGCM_CALL: %s Failed. rc=%Rrc (Hdr.rc=%Rrc).\n", f32bit ? "32" : "64", rc, pInfo->Hdr.rc));
|
---|
2823 | }
|
---|
2824 | return rc;
|
---|
2825 | }
|
---|
2826 |
|
---|
2827 |
|
---|
2828 | static int vgdrvIoCtl_HGCMCallWrapper(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCHGCMCALL pInfo,
|
---|
2829 | bool f32bit, bool fUserData, size_t cbData)
|
---|
2830 | {
|
---|
2831 | return vgdrvIoCtl_HGCMCallInner(pDevExt, pSession, pInfo, pInfo->cMsTimeout,
|
---|
2832 | pInfo->fInterruptible || pSession->R0Process != NIL_RTR0PROCESS,
|
---|
2833 | f32bit, fUserData, 0 /*cbExtra*/, cbData);
|
---|
2834 | }
|
---|
2835 |
|
---|
2836 |
|
---|
2837 | /**
|
---|
2838 | * Handles a fast HGCM call from another driver.
|
---|
2839 | *
|
---|
2840 | * The driver has provided a fully assembled HGCM call request and all we need
|
---|
2841 | * to do is send it to the host and do the wait processing.
|
---|
2842 | *
|
---|
2843 | * @returns VBox status code of the request submission part.
|
---|
2844 | * @param pDevExt The device extension.
|
---|
2845 | * @param pCallReq The call request.
|
---|
2846 | */
|
---|
2847 | static int vgdrvIoCtl_HGCMFastCall(PVBOXGUESTDEVEXT pDevExt, VBGLIOCIDCHGCMFASTCALL volatile *pCallReq)
|
---|
2848 | {
|
---|
2849 | VMMDevHGCMCall volatile *pHgcmCall = (VMMDevHGCMCall volatile *)(pCallReq + 1);
|
---|
2850 | int rc;
|
---|
2851 |
|
---|
2852 | /*
|
---|
2853 | * Check out the physical address.
|
---|
2854 | */
|
---|
2855 | Assert((pCallReq->GCPhysReq & PAGE_OFFSET_MASK) == ((uintptr_t)pHgcmCall & PAGE_OFFSET_MASK));
|
---|
2856 |
|
---|
2857 | AssertReturn(!pCallReq->fInterruptible, VERR_NOT_IMPLEMENTED);
|
---|
2858 |
|
---|
2859 | /*
|
---|
2860 | * Submit the request.
|
---|
2861 | */
|
---|
2862 | Log(("vgdrvIoCtl_HGCMFastCall -> host\n"));
|
---|
2863 | ASMOutU32(pDevExt->IOPortBase + VMMDEV_PORT_OFF_REQUEST, (uint32_t)pCallReq->GCPhysReq);
|
---|
2864 |
|
---|
2865 | /* Make the compiler aware that the host has changed memory. */
|
---|
2866 | ASMCompilerBarrier();
|
---|
2867 |
|
---|
2868 | rc = pHgcmCall->header.header.rc;
|
---|
2869 | Log(("vgdrvIoCtl_HGCMFastCall -> %Rrc (header rc=%Rrc)\n", rc, pHgcmCall->header.result));
|
---|
2870 |
|
---|
2871 | /*
|
---|
2872 | * The host is likely to engage in asynchronous execution of HGCM, unless it fails.
|
---|
2873 | */
|
---|
2874 | if (rc == VINF_HGCM_ASYNC_EXECUTE)
|
---|
2875 | {
|
---|
2876 | rc = vgdrvHgcmAsyncWaitCallbackWorker(&pHgcmCall->header, pDevExt, false /* fInterruptible */, RT_INDEFINITE_WAIT);
|
---|
2877 | if (pHgcmCall->header.fu32Flags & VBOX_HGCM_REQ_DONE)
|
---|
2878 | {
|
---|
2879 | Assert(!(pHgcmCall->header.fu32Flags & VBOX_HGCM_REQ_CANCELLED));
|
---|
2880 | rc = VINF_SUCCESS;
|
---|
2881 | }
|
---|
2882 | else
|
---|
2883 | {
|
---|
2884 | /*
|
---|
2885 | * Timeout and interrupt scenarios are messy and requires
|
---|
2886 | * cancelation, so implement later.
|
---|
2887 | */
|
---|
2888 | AssertReleaseMsgFailed(("rc=%Rrc\n", rc));
|
---|
2889 | }
|
---|
2890 | }
|
---|
2891 | else
|
---|
2892 | Assert((pHgcmCall->header.fu32Flags & VBOX_HGCM_REQ_DONE) || RT_FAILURE_NP(rc));
|
---|
2893 |
|
---|
2894 | Log(("vgdrvIoCtl_HGCMFastCall: rc=%Rrc result=%Rrc fu32Flags=%#x\n", rc, pHgcmCall->header.result, pHgcmCall->header.fu32Flags));
|
---|
2895 | return rc;
|
---|
2896 |
|
---|
2897 | }
|
---|
2898 |
|
---|
2899 | #endif /* VBOX_WITH_HGCM */
|
---|
2900 |
|
---|
2901 | /**
|
---|
2902 | * Handle VBGL_IOCTL_CHECK_BALLOON from R3.
|
---|
2903 | *
|
---|
2904 | * Ask the host for the size of the balloon and try to set it accordingly. If
|
---|
2905 | * this approach fails because it's not supported, return with fHandleInR3 set
|
---|
2906 | * and let the user land supply memory we can lock via the other ioctl.
|
---|
2907 | *
|
---|
2908 | * @returns VBox status code.
|
---|
2909 | *
|
---|
2910 | * @param pDevExt The device extension.
|
---|
2911 | * @param pSession The session.
|
---|
2912 | * @param pInfo The output buffer.
|
---|
2913 | */
|
---|
2914 | static int vgdrvIoCtl_CheckMemoryBalloon(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCCHECKBALLOON pInfo)
|
---|
2915 | {
|
---|
2916 | VMMDevGetMemBalloonChangeRequest *pReq;
|
---|
2917 | int rc;
|
---|
2918 |
|
---|
2919 | LogFlow(("VBGL_IOCTL_CHECK_BALLOON:\n"));
|
---|
2920 | rc = RTSemFastMutexRequest(pDevExt->MemBalloon.hMtx);
|
---|
2921 | AssertRCReturn(rc, rc);
|
---|
2922 |
|
---|
2923 | /*
|
---|
2924 | * The first user trying to query/change the balloon becomes the
|
---|
2925 | * owner and owns it until the session is closed (vgdrvCloseMemBalloon).
|
---|
2926 | */
|
---|
2927 | if ( pDevExt->MemBalloon.pOwner != pSession
|
---|
2928 | && pDevExt->MemBalloon.pOwner == NULL)
|
---|
2929 | pDevExt->MemBalloon.pOwner = pSession;
|
---|
2930 |
|
---|
2931 | if (pDevExt->MemBalloon.pOwner == pSession)
|
---|
2932 | {
|
---|
2933 | /*
|
---|
2934 | * This is a response to that event. Setting this bit means that
|
---|
2935 | * we request the value from the host and change the guest memory
|
---|
2936 | * balloon according to this value.
|
---|
2937 | */
|
---|
2938 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(VMMDevGetMemBalloonChangeRequest), VMMDevReq_GetMemBalloonChangeRequest);
|
---|
2939 | if (RT_SUCCESS(rc))
|
---|
2940 | {
|
---|
2941 | pReq->header.fRequestor = pSession->fRequestor;
|
---|
2942 | pReq->eventAck = VMMDEV_EVENT_BALLOON_CHANGE_REQUEST;
|
---|
2943 | rc = VbglR0GRPerform(&pReq->header);
|
---|
2944 | if (RT_SUCCESS(rc))
|
---|
2945 | {
|
---|
2946 | Assert(pDevExt->MemBalloon.cMaxChunks == pReq->cPhysMemChunks || pDevExt->MemBalloon.cMaxChunks == 0);
|
---|
2947 | pDevExt->MemBalloon.cMaxChunks = pReq->cPhysMemChunks;
|
---|
2948 |
|
---|
2949 | pInfo->u.Out.cBalloonChunks = pReq->cBalloonChunks;
|
---|
2950 | pInfo->u.Out.fHandleInR3 = false;
|
---|
2951 | pInfo->u.Out.afPadding[0] = false;
|
---|
2952 | pInfo->u.Out.afPadding[1] = false;
|
---|
2953 | pInfo->u.Out.afPadding[2] = false;
|
---|
2954 |
|
---|
2955 | rc = vgdrvSetBalloonSizeKernel(pDevExt, pReq->cBalloonChunks, &pInfo->u.Out.fHandleInR3);
|
---|
2956 | /* Ignore various out of memory failures. */
|
---|
2957 | if ( rc == VERR_NO_MEMORY
|
---|
2958 | || rc == VERR_NO_PHYS_MEMORY
|
---|
2959 | || rc == VERR_NO_CONT_MEMORY)
|
---|
2960 | rc = VINF_SUCCESS;
|
---|
2961 | }
|
---|
2962 | else
|
---|
2963 | LogRel(("VBGL_IOCTL_CHECK_BALLOON: VbglR0GRPerform failed. rc=%Rrc\n", rc));
|
---|
2964 | VbglR0GRFree(&pReq->header);
|
---|
2965 | }
|
---|
2966 | }
|
---|
2967 | else
|
---|
2968 | rc = VERR_PERMISSION_DENIED;
|
---|
2969 |
|
---|
2970 | RTSemFastMutexRelease(pDevExt->MemBalloon.hMtx);
|
---|
2971 | LogFlow(("VBGL_IOCTL_CHECK_BALLOON returns %Rrc\n", rc));
|
---|
2972 | return rc;
|
---|
2973 | }
|
---|
2974 |
|
---|
2975 |
|
---|
2976 | /**
|
---|
2977 | * Handle a request for changing the memory balloon.
|
---|
2978 | *
|
---|
2979 | * @returns VBox status code.
|
---|
2980 | *
|
---|
2981 | * @param pDevExt The device extention.
|
---|
2982 | * @param pSession The session.
|
---|
2983 | * @param pInfo The change request structure (input).
|
---|
2984 | */
|
---|
2985 | static int vgdrvIoCtl_ChangeMemoryBalloon(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCCHANGEBALLOON pInfo)
|
---|
2986 | {
|
---|
2987 | int rc;
|
---|
2988 | LogFlow(("VBGL_IOCTL_CHANGE_BALLOON: fInflate=%RTbool u64ChunkAddr=%p\n", pInfo->u.In.fInflate, pInfo->u.In.pvChunk));
|
---|
2989 | if ( pInfo->u.In.abPadding[0]
|
---|
2990 | || pInfo->u.In.abPadding[1]
|
---|
2991 | || pInfo->u.In.abPadding[2]
|
---|
2992 | || pInfo->u.In.abPadding[3]
|
---|
2993 | || pInfo->u.In.abPadding[4]
|
---|
2994 | || pInfo->u.In.abPadding[5]
|
---|
2995 | || pInfo->u.In.abPadding[6]
|
---|
2996 | #if ARCH_BITS == 32
|
---|
2997 | || pInfo->u.In.abPadding[7]
|
---|
2998 | || pInfo->u.In.abPadding[8]
|
---|
2999 | || pInfo->u.In.abPadding[9]
|
---|
3000 | #endif
|
---|
3001 | )
|
---|
3002 | {
|
---|
3003 | Log(("VBGL_IOCTL_CHANGE_BALLOON: Padding isn't all zero: %.*Rhxs\n", sizeof(pInfo->u.In.abPadding), pInfo->u.In.abPadding));
|
---|
3004 | return VERR_INVALID_PARAMETER;
|
---|
3005 | }
|
---|
3006 |
|
---|
3007 | rc = RTSemFastMutexRequest(pDevExt->MemBalloon.hMtx);
|
---|
3008 | AssertRCReturn(rc, rc);
|
---|
3009 |
|
---|
3010 | if (!pDevExt->MemBalloon.fUseKernelAPI)
|
---|
3011 | {
|
---|
3012 | /*
|
---|
3013 | * The first user trying to query/change the balloon becomes the
|
---|
3014 | * owner and owns it until the session is closed (vgdrvCloseMemBalloon).
|
---|
3015 | */
|
---|
3016 | if ( pDevExt->MemBalloon.pOwner != pSession
|
---|
3017 | && pDevExt->MemBalloon.pOwner == NULL)
|
---|
3018 | pDevExt->MemBalloon.pOwner = pSession;
|
---|
3019 |
|
---|
3020 | if (pDevExt->MemBalloon.pOwner == pSession)
|
---|
3021 | rc = vgdrvSetBalloonSizeFromUser(pDevExt, pSession, pInfo->u.In.pvChunk, pInfo->u.In.fInflate != false);
|
---|
3022 | else
|
---|
3023 | rc = VERR_PERMISSION_DENIED;
|
---|
3024 | }
|
---|
3025 | else
|
---|
3026 | rc = VERR_PERMISSION_DENIED;
|
---|
3027 |
|
---|
3028 | RTSemFastMutexRelease(pDevExt->MemBalloon.hMtx);
|
---|
3029 | return rc;
|
---|
3030 | }
|
---|
3031 |
|
---|
3032 |
|
---|
3033 | /**
|
---|
3034 | * Handle a request for writing a core dump of the guest on the host.
|
---|
3035 | *
|
---|
3036 | * @returns VBox status code.
|
---|
3037 | *
|
---|
3038 | * @param pDevExt The device extension.
|
---|
3039 | * @param pSession The session.
|
---|
3040 | * @param pInfo The output buffer.
|
---|
3041 | */
|
---|
3042 | static int vgdrvIoCtl_WriteCoreDump(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCWRITECOREDUMP pInfo)
|
---|
3043 | {
|
---|
3044 | VMMDevReqWriteCoreDump *pReq = NULL;
|
---|
3045 | int rc;
|
---|
3046 | LogFlow(("VBOXGUEST_IOCTL_WRITE_CORE_DUMP\n"));
|
---|
3047 | RT_NOREF1(pDevExt);
|
---|
3048 |
|
---|
3049 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_WriteCoreDump);
|
---|
3050 | if (RT_SUCCESS(rc))
|
---|
3051 | {
|
---|
3052 | pReq->header.fRequestor = pSession->fRequestor;
|
---|
3053 | pReq->fFlags = pInfo->u.In.fFlags;
|
---|
3054 | rc = VbglR0GRPerform(&pReq->header);
|
---|
3055 | if (RT_FAILURE(rc))
|
---|
3056 | Log(("VBOXGUEST_IOCTL_WRITE_CORE_DUMP: VbglR0GRPerform failed, rc=%Rrc!\n", rc));
|
---|
3057 |
|
---|
3058 | VbglR0GRFree(&pReq->header);
|
---|
3059 | }
|
---|
3060 | else
|
---|
3061 | Log(("VBOXGUEST_IOCTL_WRITE_CORE_DUMP: failed to allocate %u (%#x) bytes to cache the request. rc=%Rrc!!\n",
|
---|
3062 | sizeof(*pReq), sizeof(*pReq), rc));
|
---|
3063 | return rc;
|
---|
3064 | }
|
---|
3065 |
|
---|
3066 |
|
---|
3067 | /**
|
---|
3068 | * Guest backdoor logging.
|
---|
3069 | *
|
---|
3070 | * @returns VBox status code.
|
---|
3071 | *
|
---|
3072 | * @param pDevExt The device extension.
|
---|
3073 | * @param pch The log message (need not be NULL terminated).
|
---|
3074 | * @param cbData Size of the buffer.
|
---|
3075 | * @param fUserSession Copy of VBOXGUESTSESSION::fUserSession for the
|
---|
3076 | * call. True normal user, false root user.
|
---|
3077 | */
|
---|
3078 | static int vgdrvIoCtl_Log(PVBOXGUESTDEVEXT pDevExt, const char *pch, size_t cbData, bool fUserSession)
|
---|
3079 | {
|
---|
3080 | if (pDevExt->fLoggingEnabled)
|
---|
3081 | RTLogBackdoorPrintf("%.*s", cbData, pch);
|
---|
3082 | else if (!fUserSession)
|
---|
3083 | LogRel(("%.*s", cbData, pch));
|
---|
3084 | else
|
---|
3085 | Log(("%.*s", cbData, pch));
|
---|
3086 | return VINF_SUCCESS;
|
---|
3087 | }
|
---|
3088 |
|
---|
3089 |
|
---|
3090 | /** @name Guest Capabilities, Mouse Status and Event Filter
|
---|
3091 | * @{
|
---|
3092 | */
|
---|
3093 |
|
---|
3094 | /**
|
---|
3095 | * Clears a bit usage tracker (init time).
|
---|
3096 | *
|
---|
3097 | * @param pTracker The tracker to clear.
|
---|
3098 | */
|
---|
3099 | static void vgdrvBitUsageTrackerClear(PVBOXGUESTBITUSAGETRACER pTracker)
|
---|
3100 | {
|
---|
3101 | uint32_t iBit;
|
---|
3102 | AssertCompile(sizeof(pTracker->acPerBitUsage) == 32 * sizeof(uint32_t));
|
---|
3103 |
|
---|
3104 | for (iBit = 0; iBit < 32; iBit++)
|
---|
3105 | pTracker->acPerBitUsage[iBit] = 0;
|
---|
3106 | pTracker->fMask = 0;
|
---|
3107 | }
|
---|
3108 |
|
---|
3109 |
|
---|
3110 | #ifdef VBOX_STRICT
|
---|
3111 | /**
|
---|
3112 | * Checks that pTracker->fMask is correct and that the usage values are within
|
---|
3113 | * the valid range.
|
---|
3114 | *
|
---|
3115 | * @param pTracker The tracker.
|
---|
3116 | * @param cMax Max valid usage value.
|
---|
3117 | * @param pszWhat Identifies the tracker in assertions.
|
---|
3118 | */
|
---|
3119 | static void vgdrvBitUsageTrackerCheckMask(PCVBOXGUESTBITUSAGETRACER pTracker, uint32_t cMax, const char *pszWhat)
|
---|
3120 | {
|
---|
3121 | uint32_t fMask = 0;
|
---|
3122 | uint32_t iBit;
|
---|
3123 | AssertCompile(sizeof(pTracker->acPerBitUsage) == 32 * sizeof(uint32_t));
|
---|
3124 |
|
---|
3125 | for (iBit = 0; iBit < 32; iBit++)
|
---|
3126 | if (pTracker->acPerBitUsage[iBit])
|
---|
3127 | {
|
---|
3128 | fMask |= RT_BIT_32(iBit);
|
---|
3129 | AssertMsg(pTracker->acPerBitUsage[iBit] <= cMax,
|
---|
3130 | ("%s: acPerBitUsage[%u]=%#x cMax=%#x\n", pszWhat, iBit, pTracker->acPerBitUsage[iBit], cMax));
|
---|
3131 | }
|
---|
3132 |
|
---|
3133 | AssertMsg(fMask == pTracker->fMask, ("%s: %#x vs %#x\n", pszWhat, fMask, pTracker->fMask));
|
---|
3134 | }
|
---|
3135 | #endif
|
---|
3136 |
|
---|
3137 |
|
---|
3138 | /**
|
---|
3139 | * Applies a change to the bit usage tracker.
|
---|
3140 | *
|
---|
3141 | *
|
---|
3142 | * @returns true if the mask changed, false if not.
|
---|
3143 | * @param pTracker The bit usage tracker.
|
---|
3144 | * @param fChanged The bits to change.
|
---|
3145 | * @param fPrevious The previous value of the bits.
|
---|
3146 | * @param cMax The max valid usage value for assertions.
|
---|
3147 | * @param pszWhat Identifies the tracker in assertions.
|
---|
3148 | */
|
---|
3149 | static bool vgdrvBitUsageTrackerChange(PVBOXGUESTBITUSAGETRACER pTracker, uint32_t fChanged, uint32_t fPrevious,
|
---|
3150 | uint32_t cMax, const char *pszWhat)
|
---|
3151 | {
|
---|
3152 | bool fGlobalChange = false;
|
---|
3153 | AssertCompile(sizeof(pTracker->acPerBitUsage) == 32 * sizeof(uint32_t));
|
---|
3154 |
|
---|
3155 | while (fChanged)
|
---|
3156 | {
|
---|
3157 | uint32_t const iBit = ASMBitFirstSetU32(fChanged) - 1;
|
---|
3158 | uint32_t const fBitMask = RT_BIT_32(iBit);
|
---|
3159 | Assert(iBit < 32); Assert(fBitMask & fChanged);
|
---|
3160 |
|
---|
3161 | if (fBitMask & fPrevious)
|
---|
3162 | {
|
---|
3163 | pTracker->acPerBitUsage[iBit] -= 1;
|
---|
3164 | AssertMsg(pTracker->acPerBitUsage[iBit] <= cMax,
|
---|
3165 | ("%s: acPerBitUsage[%u]=%#x cMax=%#x\n", pszWhat, iBit, pTracker->acPerBitUsage[iBit], cMax));
|
---|
3166 | if (pTracker->acPerBitUsage[iBit] == 0)
|
---|
3167 | {
|
---|
3168 | fGlobalChange = true;
|
---|
3169 | pTracker->fMask &= ~fBitMask;
|
---|
3170 | }
|
---|
3171 | }
|
---|
3172 | else
|
---|
3173 | {
|
---|
3174 | pTracker->acPerBitUsage[iBit] += 1;
|
---|
3175 | AssertMsg(pTracker->acPerBitUsage[iBit] > 0 && pTracker->acPerBitUsage[iBit] <= cMax,
|
---|
3176 | ("pTracker->acPerBitUsage[%u]=%#x cMax=%#x\n", pszWhat, iBit, pTracker->acPerBitUsage[iBit], cMax));
|
---|
3177 | if (pTracker->acPerBitUsage[iBit] == 1)
|
---|
3178 | {
|
---|
3179 | fGlobalChange = true;
|
---|
3180 | pTracker->fMask |= fBitMask;
|
---|
3181 | }
|
---|
3182 | }
|
---|
3183 |
|
---|
3184 | fChanged &= ~fBitMask;
|
---|
3185 | }
|
---|
3186 |
|
---|
3187 | #ifdef VBOX_STRICT
|
---|
3188 | vgdrvBitUsageTrackerCheckMask(pTracker, cMax, pszWhat);
|
---|
3189 | #endif
|
---|
3190 | NOREF(pszWhat); NOREF(cMax);
|
---|
3191 | return fGlobalChange;
|
---|
3192 | }
|
---|
3193 |
|
---|
3194 |
|
---|
3195 | /**
|
---|
3196 | * Init and termination worker for resetting the (host) event filter on the host
|
---|
3197 | *
|
---|
3198 | * @returns VBox status code.
|
---|
3199 | * @param pDevExt The device extension.
|
---|
3200 | * @param fFixedEvents Fixed events (init time).
|
---|
3201 | */
|
---|
3202 | static int vgdrvResetEventFilterOnHost(PVBOXGUESTDEVEXT pDevExt, uint32_t fFixedEvents)
|
---|
3203 | {
|
---|
3204 | VMMDevCtlGuestFilterMask *pReq;
|
---|
3205 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_CtlGuestFilterMask);
|
---|
3206 | if (RT_SUCCESS(rc))
|
---|
3207 | {
|
---|
3208 | pReq->u32NotMask = UINT32_MAX & ~fFixedEvents;
|
---|
3209 | pReq->u32OrMask = fFixedEvents;
|
---|
3210 | rc = VbglR0GRPerform(&pReq->header);
|
---|
3211 | if (RT_FAILURE(rc))
|
---|
3212 | LogRelFunc(("failed with rc=%Rrc\n", rc));
|
---|
3213 | VbglR0GRFree(&pReq->header);
|
---|
3214 | }
|
---|
3215 | RT_NOREF1(pDevExt);
|
---|
3216 | return rc;
|
---|
3217 | }
|
---|
3218 |
|
---|
3219 |
|
---|
3220 | /**
|
---|
3221 | * Changes the event filter mask for the given session.
|
---|
3222 | *
|
---|
3223 | * This is called in response to VBGL_IOCTL_CHANGE_FILTER_MASK as well as to do
|
---|
3224 | * session cleanup.
|
---|
3225 | *
|
---|
3226 | * @returns VBox status code.
|
---|
3227 | * @param pDevExt The device extension.
|
---|
3228 | * @param pSession The session.
|
---|
3229 | * @param fOrMask The events to add.
|
---|
3230 | * @param fNotMask The events to remove.
|
---|
3231 | * @param fSessionTermination Set if we're called by the session cleanup code.
|
---|
3232 | * This tweaks the error handling so we perform
|
---|
3233 | * proper session cleanup even if the host
|
---|
3234 | * misbehaves.
|
---|
3235 | *
|
---|
3236 | * @remarks Takes the session spinlock.
|
---|
3237 | */
|
---|
3238 | static int vgdrvSetSessionEventFilter(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
|
---|
3239 | uint32_t fOrMask, uint32_t fNotMask, bool fSessionTermination)
|
---|
3240 | {
|
---|
3241 | VMMDevCtlGuestFilterMask *pReq;
|
---|
3242 | uint32_t fChanged;
|
---|
3243 | uint32_t fPrevious;
|
---|
3244 | int rc;
|
---|
3245 |
|
---|
3246 | /*
|
---|
3247 | * Preallocate a request buffer so we can do all in one go without leaving the spinlock.
|
---|
3248 | */
|
---|
3249 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_CtlGuestFilterMask);
|
---|
3250 | if (RT_SUCCESS(rc))
|
---|
3251 | { /* nothing */ }
|
---|
3252 | else if (!fSessionTermination)
|
---|
3253 | {
|
---|
3254 | LogRel(("vgdrvSetSessionFilterMask: VbglR0GRAlloc failure: %Rrc\n", rc));
|
---|
3255 | return rc;
|
---|
3256 | }
|
---|
3257 | else
|
---|
3258 | pReq = NULL; /* Ignore failure, we must do session cleanup. */
|
---|
3259 |
|
---|
3260 |
|
---|
3261 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
3262 |
|
---|
3263 | /*
|
---|
3264 | * Apply the changes to the session mask.
|
---|
3265 | */
|
---|
3266 | fPrevious = pSession->fEventFilter;
|
---|
3267 | pSession->fEventFilter |= fOrMask;
|
---|
3268 | pSession->fEventFilter &= ~fNotMask;
|
---|
3269 |
|
---|
3270 | /*
|
---|
3271 | * If anything actually changed, update the global usage counters.
|
---|
3272 | */
|
---|
3273 | fChanged = fPrevious ^ pSession->fEventFilter;
|
---|
3274 | LogFlow(("vgdrvSetSessionEventFilter: Session->fEventFilter: %#x -> %#x (changed %#x)\n",
|
---|
3275 | fPrevious, pSession->fEventFilter, fChanged));
|
---|
3276 | if (fChanged)
|
---|
3277 | {
|
---|
3278 | bool fGlobalChange = vgdrvBitUsageTrackerChange(&pDevExt->EventFilterTracker, fChanged, fPrevious,
|
---|
3279 | pDevExt->cSessions, "EventFilterTracker");
|
---|
3280 |
|
---|
3281 | /*
|
---|
3282 | * If there are global changes, update the event filter on the host.
|
---|
3283 | */
|
---|
3284 | if (fGlobalChange || pDevExt->fEventFilterHost == UINT32_MAX)
|
---|
3285 | {
|
---|
3286 | Assert(pReq || fSessionTermination);
|
---|
3287 | if (pReq)
|
---|
3288 | {
|
---|
3289 | pReq->u32OrMask = pDevExt->fFixedEvents | pDevExt->EventFilterTracker.fMask;
|
---|
3290 | if (pReq->u32OrMask == pDevExt->fEventFilterHost)
|
---|
3291 | rc = VINF_SUCCESS;
|
---|
3292 | else
|
---|
3293 | {
|
---|
3294 | pDevExt->fEventFilterHost = pReq->u32OrMask;
|
---|
3295 | pReq->u32NotMask = ~pReq->u32OrMask;
|
---|
3296 | rc = VbglR0GRPerform(&pReq->header);
|
---|
3297 | if (RT_FAILURE(rc))
|
---|
3298 | {
|
---|
3299 | /*
|
---|
3300 | * Failed, roll back (unless it's session termination time).
|
---|
3301 | */
|
---|
3302 | pDevExt->fEventFilterHost = UINT32_MAX;
|
---|
3303 | if (!fSessionTermination)
|
---|
3304 | {
|
---|
3305 | vgdrvBitUsageTrackerChange(&pDevExt->EventFilterTracker, fChanged, pSession->fEventFilter,
|
---|
3306 | pDevExt->cSessions, "EventFilterTracker");
|
---|
3307 | pSession->fEventFilter = fPrevious;
|
---|
3308 | }
|
---|
3309 | }
|
---|
3310 | }
|
---|
3311 | }
|
---|
3312 | else
|
---|
3313 | rc = VINF_SUCCESS;
|
---|
3314 | }
|
---|
3315 | }
|
---|
3316 |
|
---|
3317 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
3318 | if (pReq)
|
---|
3319 | VbglR0GRFree(&pReq->header);
|
---|
3320 | return rc;
|
---|
3321 | }
|
---|
3322 |
|
---|
3323 |
|
---|
3324 | /**
|
---|
3325 | * Handle VBGL_IOCTL_CHANGE_FILTER_MASK.
|
---|
3326 | *
|
---|
3327 | * @returns VBox status code.
|
---|
3328 | *
|
---|
3329 | * @param pDevExt The device extension.
|
---|
3330 | * @param pSession The session.
|
---|
3331 | * @param pInfo The request.
|
---|
3332 | */
|
---|
3333 | static int vgdrvIoCtl_ChangeFilterMask(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCCHANGEFILTERMASK pInfo)
|
---|
3334 | {
|
---|
3335 | LogFlow(("VBGL_IOCTL_CHANGE_FILTER_MASK: or=%#x not=%#x\n", pInfo->u.In.fOrMask, pInfo->u.In.fNotMask));
|
---|
3336 |
|
---|
3337 | if ((pInfo->u.In.fOrMask | pInfo->u.In.fNotMask) & ~VMMDEV_EVENT_VALID_EVENT_MASK)
|
---|
3338 | {
|
---|
3339 | Log(("VBGL_IOCTL_CHANGE_FILTER_MASK: or=%#x not=%#x: Invalid masks!\n", pInfo->u.In.fOrMask, pInfo->u.In.fNotMask));
|
---|
3340 | return VERR_INVALID_PARAMETER;
|
---|
3341 | }
|
---|
3342 |
|
---|
3343 | return vgdrvSetSessionEventFilter(pDevExt, pSession, pInfo->u.In.fOrMask, pInfo->u.In.fNotMask, false /*fSessionTermination*/);
|
---|
3344 | }
|
---|
3345 |
|
---|
3346 |
|
---|
3347 | /**
|
---|
3348 | * Init and termination worker for set mouse feature status to zero on the host.
|
---|
3349 | *
|
---|
3350 | * @returns VBox status code.
|
---|
3351 | * @param pDevExt The device extension.
|
---|
3352 | */
|
---|
3353 | static int vgdrvResetMouseStatusOnHost(PVBOXGUESTDEVEXT pDevExt)
|
---|
3354 | {
|
---|
3355 | VMMDevReqMouseStatus *pReq;
|
---|
3356 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_SetMouseStatus);
|
---|
3357 | if (RT_SUCCESS(rc))
|
---|
3358 | {
|
---|
3359 | pReq->mouseFeatures = 0;
|
---|
3360 | pReq->pointerXPos = 0;
|
---|
3361 | pReq->pointerYPos = 0;
|
---|
3362 | rc = VbglR0GRPerform(&pReq->header);
|
---|
3363 | if (RT_FAILURE(rc))
|
---|
3364 | LogRelFunc(("failed with rc=%Rrc\n", rc));
|
---|
3365 | VbglR0GRFree(&pReq->header);
|
---|
3366 | }
|
---|
3367 | RT_NOREF1(pDevExt);
|
---|
3368 | return rc;
|
---|
3369 | }
|
---|
3370 |
|
---|
3371 |
|
---|
3372 | /**
|
---|
3373 | * Changes the mouse status mask for the given session.
|
---|
3374 | *
|
---|
3375 | * This is called in response to VBOXGUEST_IOCTL_SET_MOUSE_STATUS as well as to
|
---|
3376 | * do session cleanup.
|
---|
3377 | *
|
---|
3378 | * @returns VBox status code.
|
---|
3379 | * @param pDevExt The device extension.
|
---|
3380 | * @param pSession The session.
|
---|
3381 | * @param fOrMask The status flags to add.
|
---|
3382 | * @param fNotMask The status flags to remove.
|
---|
3383 | * @param fSessionTermination Set if we're called by the session cleanup code.
|
---|
3384 | * This tweaks the error handling so we perform
|
---|
3385 | * proper session cleanup even if the host
|
---|
3386 | * misbehaves.
|
---|
3387 | *
|
---|
3388 | * @remarks Takes the session spinlock.
|
---|
3389 | */
|
---|
3390 | static int vgdrvSetSessionMouseStatus(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
|
---|
3391 | uint32_t fOrMask, uint32_t fNotMask, bool fSessionTermination)
|
---|
3392 | {
|
---|
3393 | VMMDevReqMouseStatus *pReq;
|
---|
3394 | uint32_t fChanged;
|
---|
3395 | uint32_t fPrevious;
|
---|
3396 | int rc;
|
---|
3397 |
|
---|
3398 | /*
|
---|
3399 | * Preallocate a request buffer so we can do all in one go without leaving the spinlock.
|
---|
3400 | */
|
---|
3401 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_SetMouseStatus);
|
---|
3402 | if (RT_SUCCESS(rc))
|
---|
3403 | {
|
---|
3404 | if (!fSessionTermination)
|
---|
3405 | pReq->header.fRequestor = pSession->fRequestor;
|
---|
3406 | }
|
---|
3407 | else if (!fSessionTermination)
|
---|
3408 | {
|
---|
3409 | LogRel(("vgdrvSetSessionMouseStatus: VbglR0GRAlloc failure: %Rrc\n", rc));
|
---|
3410 | return rc;
|
---|
3411 | }
|
---|
3412 | else
|
---|
3413 | pReq = NULL; /* Ignore failure, we must do session cleanup. */
|
---|
3414 |
|
---|
3415 |
|
---|
3416 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
3417 |
|
---|
3418 | /*
|
---|
3419 | * Apply the changes to the session mask.
|
---|
3420 | */
|
---|
3421 | fPrevious = pSession->fMouseStatus;
|
---|
3422 | pSession->fMouseStatus |= fOrMask;
|
---|
3423 | pSession->fMouseStatus &= ~fNotMask;
|
---|
3424 |
|
---|
3425 | /*
|
---|
3426 | * If anything actually changed, update the global usage counters.
|
---|
3427 | */
|
---|
3428 | fChanged = fPrevious ^ pSession->fMouseStatus;
|
---|
3429 | if (fChanged)
|
---|
3430 | {
|
---|
3431 | bool fGlobalChange = vgdrvBitUsageTrackerChange(&pDevExt->MouseStatusTracker, fChanged, fPrevious,
|
---|
3432 | pDevExt->cSessions, "MouseStatusTracker");
|
---|
3433 |
|
---|
3434 | /*
|
---|
3435 | * If there are global changes, update the event filter on the host.
|
---|
3436 | */
|
---|
3437 | if (fGlobalChange || pDevExt->fMouseStatusHost == UINT32_MAX)
|
---|
3438 | {
|
---|
3439 | Assert(pReq || fSessionTermination);
|
---|
3440 | if (pReq)
|
---|
3441 | {
|
---|
3442 | pReq->mouseFeatures = pDevExt->MouseStatusTracker.fMask;
|
---|
3443 | if (pReq->mouseFeatures == pDevExt->fMouseStatusHost)
|
---|
3444 | rc = VINF_SUCCESS;
|
---|
3445 | else
|
---|
3446 | {
|
---|
3447 | pDevExt->fMouseStatusHost = pReq->mouseFeatures;
|
---|
3448 | pReq->pointerXPos = 0;
|
---|
3449 | pReq->pointerYPos = 0;
|
---|
3450 | rc = VbglR0GRPerform(&pReq->header);
|
---|
3451 | if (RT_FAILURE(rc))
|
---|
3452 | {
|
---|
3453 | /*
|
---|
3454 | * Failed, roll back (unless it's session termination time).
|
---|
3455 | */
|
---|
3456 | pDevExt->fMouseStatusHost = UINT32_MAX;
|
---|
3457 | if (!fSessionTermination)
|
---|
3458 | {
|
---|
3459 | vgdrvBitUsageTrackerChange(&pDevExt->MouseStatusTracker, fChanged, pSession->fMouseStatus,
|
---|
3460 | pDevExt->cSessions, "MouseStatusTracker");
|
---|
3461 | pSession->fMouseStatus = fPrevious;
|
---|
3462 | }
|
---|
3463 | }
|
---|
3464 | }
|
---|
3465 | }
|
---|
3466 | else
|
---|
3467 | rc = VINF_SUCCESS;
|
---|
3468 | }
|
---|
3469 | }
|
---|
3470 |
|
---|
3471 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
3472 | if (pReq)
|
---|
3473 | VbglR0GRFree(&pReq->header);
|
---|
3474 | return rc;
|
---|
3475 | }
|
---|
3476 |
|
---|
3477 |
|
---|
3478 | /**
|
---|
3479 | * Sets the mouse status features for this session and updates them globally.
|
---|
3480 | *
|
---|
3481 | * @returns VBox status code.
|
---|
3482 | *
|
---|
3483 | * @param pDevExt The device extention.
|
---|
3484 | * @param pSession The session.
|
---|
3485 | * @param fFeatures New bitmap of enabled features.
|
---|
3486 | */
|
---|
3487 | static int vgdrvIoCtl_SetMouseStatus(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, uint32_t fFeatures)
|
---|
3488 | {
|
---|
3489 | LogFlow(("VBGL_IOCTL_SET_MOUSE_STATUS: features=%#x\n", fFeatures));
|
---|
3490 |
|
---|
3491 | if (fFeatures & ~VMMDEV_MOUSE_GUEST_MASK)
|
---|
3492 | return VERR_INVALID_PARAMETER;
|
---|
3493 |
|
---|
3494 | return vgdrvSetSessionMouseStatus(pDevExt, pSession, fFeatures, ~fFeatures, false /*fSessionTermination*/);
|
---|
3495 | }
|
---|
3496 |
|
---|
3497 |
|
---|
3498 | /**
|
---|
3499 | * Return the mask of VMM device events that this session is allowed to see (wrt
|
---|
3500 | * to "acquire" mode guest capabilities).
|
---|
3501 | *
|
---|
3502 | * The events associated with guest capabilities in "acquire" mode will be
|
---|
3503 | * restricted to sessions which has acquired the respective capabilities.
|
---|
3504 | * If someone else tries to wait for acquired events, they won't be woken up
|
---|
3505 | * when the event becomes pending. Should some other thread in the session
|
---|
3506 | * acquire the capability while the corresponding event is pending, the waiting
|
---|
3507 | * thread will woken up.
|
---|
3508 | *
|
---|
3509 | * @returns Mask of events valid for the given session.
|
---|
3510 | * @param pDevExt The device extension.
|
---|
3511 | * @param pSession The session.
|
---|
3512 | *
|
---|
3513 | * @remarks Needs only be called when dispatching events in the
|
---|
3514 | * VBOXGUEST_ACQUIRE_STYLE_EVENTS mask.
|
---|
3515 | */
|
---|
3516 | static uint32_t vgdrvGetAllowedEventMaskForSession(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession)
|
---|
3517 | {
|
---|
3518 | uint32_t fAcquireModeGuestCaps;
|
---|
3519 | uint32_t fAcquiredGuestCaps;
|
---|
3520 | uint32_t fAllowedEvents;
|
---|
3521 |
|
---|
3522 | /*
|
---|
3523 | * Note! Reads pSession->fAcquiredGuestCaps and pDevExt->fAcquireModeGuestCaps
|
---|
3524 | * WITHOUT holding VBOXGUESTDEVEXT::SessionSpinlock.
|
---|
3525 | */
|
---|
3526 | fAcquireModeGuestCaps = ASMAtomicUoReadU32(&pDevExt->fAcquireModeGuestCaps);
|
---|
3527 | if (fAcquireModeGuestCaps == 0)
|
---|
3528 | return VMMDEV_EVENT_VALID_EVENT_MASK;
|
---|
3529 | fAcquiredGuestCaps = ASMAtomicUoReadU32(&pSession->fAcquiredGuestCaps);
|
---|
3530 |
|
---|
3531 | /*
|
---|
3532 | * Calculate which events to allow according to the cap config and caps
|
---|
3533 | * acquired by the session.
|
---|
3534 | */
|
---|
3535 | fAllowedEvents = VMMDEV_EVENT_VALID_EVENT_MASK;
|
---|
3536 | if ( !(fAcquiredGuestCaps & VMMDEV_GUEST_SUPPORTS_GRAPHICS)
|
---|
3537 | && (fAcquireModeGuestCaps & VMMDEV_GUEST_SUPPORTS_GRAPHICS))
|
---|
3538 | fAllowedEvents &= ~VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST;
|
---|
3539 |
|
---|
3540 | if ( !(fAcquiredGuestCaps & VMMDEV_GUEST_SUPPORTS_SEAMLESS)
|
---|
3541 | && (fAcquireModeGuestCaps & VMMDEV_GUEST_SUPPORTS_SEAMLESS))
|
---|
3542 | fAllowedEvents &= ~VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST;
|
---|
3543 |
|
---|
3544 | return fAllowedEvents;
|
---|
3545 | }
|
---|
3546 |
|
---|
3547 |
|
---|
3548 | /**
|
---|
3549 | * Init and termination worker for set guest capabilities to zero on the host.
|
---|
3550 | *
|
---|
3551 | * @returns VBox status code.
|
---|
3552 | * @param pDevExt The device extension.
|
---|
3553 | */
|
---|
3554 | static int vgdrvResetCapabilitiesOnHost(PVBOXGUESTDEVEXT pDevExt)
|
---|
3555 | {
|
---|
3556 | VMMDevReqGuestCapabilities2 *pReq;
|
---|
3557 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_SetGuestCapabilities);
|
---|
3558 | if (RT_SUCCESS(rc))
|
---|
3559 | {
|
---|
3560 | pReq->u32NotMask = UINT32_MAX;
|
---|
3561 | pReq->u32OrMask = 0;
|
---|
3562 | rc = VbglR0GRPerform(&pReq->header);
|
---|
3563 |
|
---|
3564 | if (RT_FAILURE(rc))
|
---|
3565 | LogRelFunc(("failed with rc=%Rrc\n", rc));
|
---|
3566 | VbglR0GRFree(&pReq->header);
|
---|
3567 | }
|
---|
3568 | RT_NOREF1(pDevExt);
|
---|
3569 | return rc;
|
---|
3570 | }
|
---|
3571 |
|
---|
3572 |
|
---|
3573 | /**
|
---|
3574 | * Sets the guest capabilities to the host while holding the lock.
|
---|
3575 | *
|
---|
3576 | * This will ASSUME that we're the ones in charge of the mask, so
|
---|
3577 | * we'll simply clear all bits we don't set.
|
---|
3578 | *
|
---|
3579 | * @returns VBox status code.
|
---|
3580 | * @param pDevExt The device extension.
|
---|
3581 | * @param pReq The request.
|
---|
3582 | */
|
---|
3583 | static int vgdrvUpdateCapabilitiesOnHostWithReqAndLock(PVBOXGUESTDEVEXT pDevExt, VMMDevReqGuestCapabilities2 *pReq)
|
---|
3584 | {
|
---|
3585 | int rc;
|
---|
3586 |
|
---|
3587 | pReq->u32OrMask = pDevExt->fAcquiredGuestCaps | pDevExt->SetGuestCapsTracker.fMask;
|
---|
3588 | if (pReq->u32OrMask == pDevExt->fGuestCapsHost)
|
---|
3589 | rc = VINF_SUCCESS;
|
---|
3590 | else
|
---|
3591 | {
|
---|
3592 | pDevExt->fGuestCapsHost = pReq->u32OrMask;
|
---|
3593 | pReq->u32NotMask = ~pReq->u32OrMask;
|
---|
3594 | rc = VbglR0GRPerform(&pReq->header);
|
---|
3595 | if (RT_FAILURE(rc))
|
---|
3596 | pDevExt->fGuestCapsHost = UINT32_MAX;
|
---|
3597 | }
|
---|
3598 |
|
---|
3599 | return rc;
|
---|
3600 | }
|
---|
3601 |
|
---|
3602 |
|
---|
3603 | /**
|
---|
3604 | * Switch a set of capabilities into "acquire" mode and (maybe) acquire them for
|
---|
3605 | * the given session.
|
---|
3606 | *
|
---|
3607 | * This is called in response to VBOXGUEST_IOCTL_GUEST_CAPS_ACQUIRE as well as
|
---|
3608 | * to do session cleanup.
|
---|
3609 | *
|
---|
3610 | * @returns VBox status code.
|
---|
3611 | * @param pDevExt The device extension.
|
---|
3612 | * @param pSession The session.
|
---|
3613 | * @param fOrMask The capabilities to add .
|
---|
3614 | * @param fNotMask The capabilities to remove. Ignored in
|
---|
3615 | * VBOXGUESTCAPSACQUIRE_FLAGS_CONFIG_ACQUIRE_MODE.
|
---|
3616 | * @param fFlags Confusing operation modifier.
|
---|
3617 | * VBOXGUESTCAPSACQUIRE_FLAGS_NONE means to both
|
---|
3618 | * configure and acquire/release the capabilities.
|
---|
3619 | * VBOXGUESTCAPSACQUIRE_FLAGS_CONFIG_ACQUIRE_MODE
|
---|
3620 | * means only configure capabilities in the
|
---|
3621 | * @a fOrMask capabilities for "acquire" mode.
|
---|
3622 | * @param fSessionTermination Set if we're called by the session cleanup code.
|
---|
3623 | * This tweaks the error handling so we perform
|
---|
3624 | * proper session cleanup even if the host
|
---|
3625 | * misbehaves.
|
---|
3626 | *
|
---|
3627 | * @remarks Takes both the session and event spinlocks.
|
---|
3628 | */
|
---|
3629 | static int vgdrvAcquireSessionCapabilities(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
|
---|
3630 | uint32_t fOrMask, uint32_t fNotMask, uint32_t fFlags,
|
---|
3631 | bool fSessionTermination)
|
---|
3632 | {
|
---|
3633 | uint32_t fCurrentOwnedCaps;
|
---|
3634 | uint32_t fSessionRemovedCaps;
|
---|
3635 | uint32_t fSessionAddedCaps;
|
---|
3636 | uint32_t fOtherConflictingCaps;
|
---|
3637 | VMMDevReqGuestCapabilities2 *pReq = NULL;
|
---|
3638 | int rc;
|
---|
3639 |
|
---|
3640 |
|
---|
3641 | /*
|
---|
3642 | * Validate and adjust input.
|
---|
3643 | */
|
---|
3644 | if (fOrMask & ~( VMMDEV_GUEST_SUPPORTS_SEAMLESS
|
---|
3645 | | VMMDEV_GUEST_SUPPORTS_GUEST_HOST_WINDOW_MAPPING
|
---|
3646 | | VMMDEV_GUEST_SUPPORTS_GRAPHICS ) )
|
---|
3647 | {
|
---|
3648 | LogRel(("vgdrvAcquireSessionCapabilities: invalid fOrMask=%#x (pSession=%p fNotMask=%#x fFlags=%#x)\n",
|
---|
3649 | fOrMask, pSession, fNotMask, fFlags));
|
---|
3650 | return VERR_INVALID_PARAMETER;
|
---|
3651 | }
|
---|
3652 |
|
---|
3653 | if ((fFlags & ~VBGL_IOC_AGC_FLAGS_VALID_MASK) != 0)
|
---|
3654 | {
|
---|
3655 | LogRel(("vgdrvAcquireSessionCapabilities: invalid fFlags=%#x (pSession=%p fOrMask=%#x fNotMask=%#x)\n",
|
---|
3656 | fFlags, pSession, fOrMask, fNotMask));
|
---|
3657 | return VERR_INVALID_PARAMETER;
|
---|
3658 | }
|
---|
3659 | Assert(!fOrMask || !fSessionTermination);
|
---|
3660 |
|
---|
3661 | /* The fNotMask no need to have all values valid, invalid ones will simply be ignored. */
|
---|
3662 | fNotMask &= ~fOrMask;
|
---|
3663 |
|
---|
3664 | /*
|
---|
3665 | * Preallocate a update request if we're about to do more than just configure
|
---|
3666 | * the capability mode.
|
---|
3667 | */
|
---|
3668 | if (!(fFlags & VBGL_IOC_AGC_FLAGS_CONFIG_ACQUIRE_MODE))
|
---|
3669 | {
|
---|
3670 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_SetGuestCapabilities);
|
---|
3671 | if (RT_SUCCESS(rc))
|
---|
3672 | {
|
---|
3673 | if (!fSessionTermination)
|
---|
3674 | pReq->header.fRequestor = pSession->fRequestor;
|
---|
3675 | }
|
---|
3676 | else if (!fSessionTermination)
|
---|
3677 | {
|
---|
3678 | LogRel(("vgdrvAcquireSessionCapabilities: pSession=%p fOrMask=%#x fNotMask=%#x fFlags=%#x: VbglR0GRAlloc failure: %Rrc\n",
|
---|
3679 | pSession, fOrMask, fNotMask, fFlags, rc));
|
---|
3680 | return rc;
|
---|
3681 | }
|
---|
3682 | else
|
---|
3683 | pReq = NULL; /* Ignore failure, we must do session cleanup. */
|
---|
3684 | }
|
---|
3685 |
|
---|
3686 | /*
|
---|
3687 | * Try switch the capabilities in the OR mask into "acquire" mode.
|
---|
3688 | *
|
---|
3689 | * Note! We currently ignore anyone which may already have "set" the capabilities
|
---|
3690 | * in fOrMask. Perhaps not the best way to handle it, but it's simple...
|
---|
3691 | */
|
---|
3692 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
3693 |
|
---|
3694 | if (!(pDevExt->fSetModeGuestCaps & fOrMask))
|
---|
3695 | pDevExt->fAcquireModeGuestCaps |= fOrMask;
|
---|
3696 | else
|
---|
3697 | {
|
---|
3698 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
3699 |
|
---|
3700 | if (pReq)
|
---|
3701 | VbglR0GRFree(&pReq->header);
|
---|
3702 | AssertMsgFailed(("Trying to change caps mode: %#x\n", fOrMask));
|
---|
3703 | LogRel(("vgdrvAcquireSessionCapabilities: pSession=%p fOrMask=%#x fNotMask=%#x fFlags=%#x: calling caps acquire for set caps\n",
|
---|
3704 | pSession, fOrMask, fNotMask, fFlags));
|
---|
3705 | return VERR_INVALID_STATE;
|
---|
3706 | }
|
---|
3707 |
|
---|
3708 | /*
|
---|
3709 | * If we only wanted to switch the capabilities into "acquire" mode, we're done now.
|
---|
3710 | */
|
---|
3711 | if (fFlags & VBGL_IOC_AGC_FLAGS_CONFIG_ACQUIRE_MODE)
|
---|
3712 | {
|
---|
3713 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
3714 |
|
---|
3715 | Assert(!pReq);
|
---|
3716 | Log(("vgdrvAcquireSessionCapabilities: pSession=%p fOrMask=%#x fNotMask=%#x fFlags=%#x: configured acquire caps: 0x%x\n",
|
---|
3717 | pSession, fOrMask, fNotMask, fFlags));
|
---|
3718 | return VINF_SUCCESS;
|
---|
3719 | }
|
---|
3720 | Assert(pReq || fSessionTermination);
|
---|
3721 |
|
---|
3722 | /*
|
---|
3723 | * Caller wants to acquire/release the capabilities too.
|
---|
3724 | *
|
---|
3725 | * Note! The mode change of the capabilities above won't be reverted on
|
---|
3726 | * failure, this is intentional.
|
---|
3727 | */
|
---|
3728 | fCurrentOwnedCaps = pSession->fAcquiredGuestCaps;
|
---|
3729 | fSessionRemovedCaps = fCurrentOwnedCaps & fNotMask;
|
---|
3730 | fSessionAddedCaps = fOrMask & ~fCurrentOwnedCaps;
|
---|
3731 | fOtherConflictingCaps = pDevExt->fAcquiredGuestCaps & ~fCurrentOwnedCaps;
|
---|
3732 | fOtherConflictingCaps &= fSessionAddedCaps;
|
---|
3733 |
|
---|
3734 | if (!fOtherConflictingCaps)
|
---|
3735 | {
|
---|
3736 | if (fSessionAddedCaps)
|
---|
3737 | {
|
---|
3738 | pSession->fAcquiredGuestCaps |= fSessionAddedCaps;
|
---|
3739 | pDevExt->fAcquiredGuestCaps |= fSessionAddedCaps;
|
---|
3740 | }
|
---|
3741 |
|
---|
3742 | if (fSessionRemovedCaps)
|
---|
3743 | {
|
---|
3744 | pSession->fAcquiredGuestCaps &= ~fSessionRemovedCaps;
|
---|
3745 | pDevExt->fAcquiredGuestCaps &= ~fSessionRemovedCaps;
|
---|
3746 | }
|
---|
3747 |
|
---|
3748 | /*
|
---|
3749 | * If something changes (which is very likely), tell the host.
|
---|
3750 | */
|
---|
3751 | if (fSessionAddedCaps || fSessionRemovedCaps || pDevExt->fGuestCapsHost == UINT32_MAX)
|
---|
3752 | {
|
---|
3753 | Assert(pReq || fSessionTermination);
|
---|
3754 | if (pReq)
|
---|
3755 | {
|
---|
3756 | rc = vgdrvUpdateCapabilitiesOnHostWithReqAndLock(pDevExt, pReq);
|
---|
3757 | if (RT_FAILURE(rc) && !fSessionTermination)
|
---|
3758 | {
|
---|
3759 | /* Failed, roll back. */
|
---|
3760 | if (fSessionAddedCaps)
|
---|
3761 | {
|
---|
3762 | pSession->fAcquiredGuestCaps &= ~fSessionAddedCaps;
|
---|
3763 | pDevExt->fAcquiredGuestCaps &= ~fSessionAddedCaps;
|
---|
3764 | }
|
---|
3765 | if (fSessionRemovedCaps)
|
---|
3766 | {
|
---|
3767 | pSession->fAcquiredGuestCaps |= fSessionRemovedCaps;
|
---|
3768 | pDevExt->fAcquiredGuestCaps |= fSessionRemovedCaps;
|
---|
3769 | }
|
---|
3770 |
|
---|
3771 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
3772 | LogRel(("vgdrvAcquireSessionCapabilities: vgdrvUpdateCapabilitiesOnHostWithReqAndLock failed: rc=%Rrc\n", rc));
|
---|
3773 | VbglR0GRFree(&pReq->header);
|
---|
3774 | return rc;
|
---|
3775 | }
|
---|
3776 | }
|
---|
3777 | }
|
---|
3778 | }
|
---|
3779 | else
|
---|
3780 | {
|
---|
3781 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
3782 |
|
---|
3783 | Log(("vgdrvAcquireSessionCapabilities: Caps %#x were busy\n", fOtherConflictingCaps));
|
---|
3784 | VbglR0GRFree(&pReq->header);
|
---|
3785 | return VERR_RESOURCE_BUSY;
|
---|
3786 | }
|
---|
3787 |
|
---|
3788 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
3789 | if (pReq)
|
---|
3790 | VbglR0GRFree(&pReq->header);
|
---|
3791 |
|
---|
3792 | /*
|
---|
3793 | * If we added a capability, check if that means some other thread in our
|
---|
3794 | * session should be unblocked because there are events pending.
|
---|
3795 | *
|
---|
3796 | * HACK ALERT! When the seamless support capability is added we generate a
|
---|
3797 | * seamless change event so that the ring-3 client can sync with
|
---|
3798 | * the seamless state. Although this introduces a spurious
|
---|
3799 | * wakeups of the ring-3 client, it solves the problem of client
|
---|
3800 | * state inconsistency in multiuser environment (on Windows).
|
---|
3801 | */
|
---|
3802 | if (fSessionAddedCaps)
|
---|
3803 | {
|
---|
3804 | uint32_t fGenFakeEvents = 0;
|
---|
3805 | if (fSessionAddedCaps & VMMDEV_GUEST_SUPPORTS_SEAMLESS)
|
---|
3806 | fGenFakeEvents |= VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST;
|
---|
3807 |
|
---|
3808 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
3809 | if (fGenFakeEvents || pDevExt->f32PendingEvents)
|
---|
3810 | vgdrvDispatchEventsLocked(pDevExt, fGenFakeEvents);
|
---|
3811 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
3812 |
|
---|
3813 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
3814 | VGDrvCommonWaitDoWakeUps(pDevExt);
|
---|
3815 | #endif
|
---|
3816 | }
|
---|
3817 |
|
---|
3818 | return VINF_SUCCESS;
|
---|
3819 | }
|
---|
3820 |
|
---|
3821 |
|
---|
3822 | /**
|
---|
3823 | * Handle VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES.
|
---|
3824 | *
|
---|
3825 | * @returns VBox status code.
|
---|
3826 | *
|
---|
3827 | * @param pDevExt The device extension.
|
---|
3828 | * @param pSession The session.
|
---|
3829 | * @param pAcquire The request.
|
---|
3830 | */
|
---|
3831 | static int vgdrvIoCtl_GuestCapsAcquire(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCACQUIREGUESTCAPS pAcquire)
|
---|
3832 | {
|
---|
3833 | int rc;
|
---|
3834 | LogFlow(("VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES: or=%#x not=%#x flags=%#x\n",
|
---|
3835 | pAcquire->u.In.fOrMask, pAcquire->u.In.fNotMask, pAcquire->u.In.fFlags));
|
---|
3836 |
|
---|
3837 | rc = vgdrvAcquireSessionCapabilities(pDevExt, pSession, pAcquire->u.In.fOrMask, pAcquire->u.In.fNotMask,
|
---|
3838 | pAcquire->u.In.fFlags, false /*fSessionTermination*/);
|
---|
3839 | if (RT_FAILURE(rc))
|
---|
3840 | LogRel(("VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES failed rc=%Rrc\n", rc));
|
---|
3841 | return rc;
|
---|
3842 | }
|
---|
3843 |
|
---|
3844 |
|
---|
3845 | /**
|
---|
3846 | * Sets the guest capabilities for a session.
|
---|
3847 | *
|
---|
3848 | * @returns VBox status code.
|
---|
3849 | * @param pDevExt The device extension.
|
---|
3850 | * @param pSession The session.
|
---|
3851 | * @param fOrMask The capabilities to add.
|
---|
3852 | * @param fNotMask The capabilities to remove.
|
---|
3853 | * @param pfSessionCaps Where to return the guest capabilities reported
|
---|
3854 | * for this session. Optional.
|
---|
3855 | * @param pfGlobalCaps Where to return the guest capabilities reported
|
---|
3856 | * for all the sessions. Optional.
|
---|
3857 | *
|
---|
3858 | * @param fSessionTermination Set if we're called by the session cleanup code.
|
---|
3859 | * This tweaks the error handling so we perform
|
---|
3860 | * proper session cleanup even if the host
|
---|
3861 | * misbehaves.
|
---|
3862 | *
|
---|
3863 | * @remarks Takes the session spinlock.
|
---|
3864 | */
|
---|
3865 | static int vgdrvSetSessionCapabilities(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
|
---|
3866 | uint32_t fOrMask, uint32_t fNotMask, uint32_t *pfSessionCaps, uint32_t *pfGlobalCaps,
|
---|
3867 | bool fSessionTermination)
|
---|
3868 | {
|
---|
3869 | /*
|
---|
3870 | * Preallocate a request buffer so we can do all in one go without leaving the spinlock.
|
---|
3871 | */
|
---|
3872 | VMMDevReqGuestCapabilities2 *pReq;
|
---|
3873 | int rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pReq, sizeof(*pReq), VMMDevReq_SetGuestCapabilities);
|
---|
3874 | if (RT_SUCCESS(rc))
|
---|
3875 | {
|
---|
3876 | if (!fSessionTermination)
|
---|
3877 | pReq->header.fRequestor = pSession->fRequestor;
|
---|
3878 | }
|
---|
3879 | else if (!fSessionTermination)
|
---|
3880 | {
|
---|
3881 | if (pfSessionCaps)
|
---|
3882 | *pfSessionCaps = UINT32_MAX;
|
---|
3883 | if (pfGlobalCaps)
|
---|
3884 | *pfGlobalCaps = UINT32_MAX;
|
---|
3885 | LogRel(("vgdrvSetSessionCapabilities: VbglR0GRAlloc failure: %Rrc\n", rc));
|
---|
3886 | return rc;
|
---|
3887 | }
|
---|
3888 | else
|
---|
3889 | pReq = NULL; /* Ignore failure, we must do session cleanup. */
|
---|
3890 |
|
---|
3891 |
|
---|
3892 | RTSpinlockAcquire(pDevExt->SessionSpinlock);
|
---|
3893 |
|
---|
3894 | #ifndef VBOXGUEST_DISREGARD_ACQUIRE_MODE_GUEST_CAPS
|
---|
3895 | /*
|
---|
3896 | * Capabilities in "acquire" mode cannot be set via this API.
|
---|
3897 | * (Acquire mode is only used on windows at the time of writing.)
|
---|
3898 | */
|
---|
3899 | if (!(fOrMask & pDevExt->fAcquireModeGuestCaps))
|
---|
3900 | #endif
|
---|
3901 | {
|
---|
3902 | /*
|
---|
3903 | * Apply the changes to the session mask.
|
---|
3904 | */
|
---|
3905 | uint32_t fChanged;
|
---|
3906 | uint32_t fPrevious = pSession->fCapabilities;
|
---|
3907 | pSession->fCapabilities |= fOrMask;
|
---|
3908 | pSession->fCapabilities &= ~fNotMask;
|
---|
3909 |
|
---|
3910 | /*
|
---|
3911 | * If anything actually changed, update the global usage counters.
|
---|
3912 | */
|
---|
3913 | fChanged = fPrevious ^ pSession->fCapabilities;
|
---|
3914 | if (fChanged)
|
---|
3915 | {
|
---|
3916 | bool fGlobalChange = vgdrvBitUsageTrackerChange(&pDevExt->SetGuestCapsTracker, fChanged, fPrevious,
|
---|
3917 | pDevExt->cSessions, "SetGuestCapsTracker");
|
---|
3918 |
|
---|
3919 | /*
|
---|
3920 | * If there are global changes, update the capabilities on the host.
|
---|
3921 | */
|
---|
3922 | if (fGlobalChange || pDevExt->fGuestCapsHost == UINT32_MAX)
|
---|
3923 | {
|
---|
3924 | Assert(pReq || fSessionTermination);
|
---|
3925 | if (pReq)
|
---|
3926 | {
|
---|
3927 | rc = vgdrvUpdateCapabilitiesOnHostWithReqAndLock(pDevExt, pReq);
|
---|
3928 |
|
---|
3929 | /* On failure, roll back (unless it's session termination time). */
|
---|
3930 | if (RT_FAILURE(rc) && !fSessionTermination)
|
---|
3931 | {
|
---|
3932 | vgdrvBitUsageTrackerChange(&pDevExt->SetGuestCapsTracker, fChanged, pSession->fCapabilities,
|
---|
3933 | pDevExt->cSessions, "SetGuestCapsTracker");
|
---|
3934 | pSession->fCapabilities = fPrevious;
|
---|
3935 | }
|
---|
3936 | }
|
---|
3937 | }
|
---|
3938 | }
|
---|
3939 | }
|
---|
3940 | #ifndef VBOXGUEST_DISREGARD_ACQUIRE_MODE_GUEST_CAPS
|
---|
3941 | else
|
---|
3942 | rc = VERR_RESOURCE_BUSY;
|
---|
3943 | #endif
|
---|
3944 |
|
---|
3945 | if (pfSessionCaps)
|
---|
3946 | *pfSessionCaps = pSession->fCapabilities;
|
---|
3947 | if (pfGlobalCaps)
|
---|
3948 | *pfGlobalCaps = pDevExt->fAcquiredGuestCaps | pDevExt->SetGuestCapsTracker.fMask;
|
---|
3949 |
|
---|
3950 | RTSpinlockRelease(pDevExt->SessionSpinlock);
|
---|
3951 | if (pReq)
|
---|
3952 | VbglR0GRFree(&pReq->header);
|
---|
3953 | return rc;
|
---|
3954 | }
|
---|
3955 |
|
---|
3956 |
|
---|
3957 | /**
|
---|
3958 | * Handle VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES.
|
---|
3959 | *
|
---|
3960 | * @returns VBox status code.
|
---|
3961 | *
|
---|
3962 | * @param pDevExt The device extension.
|
---|
3963 | * @param pSession The session.
|
---|
3964 | * @param pInfo The request.
|
---|
3965 | */
|
---|
3966 | static int vgdrvIoCtl_SetCapabilities(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLIOCSETGUESTCAPS pInfo)
|
---|
3967 | {
|
---|
3968 | int rc;
|
---|
3969 | LogFlow(("VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES: or=%#x not=%#x\n", pInfo->u.In.fOrMask, pInfo->u.In.fNotMask));
|
---|
3970 |
|
---|
3971 | if (!((pInfo->u.In.fOrMask | pInfo->u.In.fNotMask) & ~VMMDEV_GUEST_CAPABILITIES_MASK))
|
---|
3972 | rc = vgdrvSetSessionCapabilities(pDevExt, pSession, pInfo->u.In.fOrMask, pInfo->u.In.fNotMask,
|
---|
3973 | &pInfo->u.Out.fSessionCaps, &pInfo->u.Out.fGlobalCaps, false /*fSessionTermination*/);
|
---|
3974 | else
|
---|
3975 | rc = VERR_INVALID_PARAMETER;
|
---|
3976 |
|
---|
3977 | return rc;
|
---|
3978 | }
|
---|
3979 |
|
---|
3980 | /** @} */
|
---|
3981 |
|
---|
3982 |
|
---|
3983 | /**
|
---|
3984 | * Common IOCtl for user to kernel and kernel to kernel communication.
|
---|
3985 | *
|
---|
3986 | * This function only does the basic validation and then invokes
|
---|
3987 | * worker functions that takes care of each specific function.
|
---|
3988 | *
|
---|
3989 | * @returns VBox status code.
|
---|
3990 | *
|
---|
3991 | * @param iFunction The requested function.
|
---|
3992 | * @param pDevExt The device extension.
|
---|
3993 | * @param pSession The client session.
|
---|
3994 | * @param pReqHdr Pointer to the request. This always starts with
|
---|
3995 | * a request common header.
|
---|
3996 | * @param cbReq The max size of the request buffer.
|
---|
3997 | */
|
---|
3998 | int VGDrvCommonIoCtl(uintptr_t iFunction, PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession, PVBGLREQHDR pReqHdr, size_t cbReq)
|
---|
3999 | {
|
---|
4000 | uintptr_t const iFunctionStripped = VBGL_IOCTL_CODE_STRIPPED(iFunction);
|
---|
4001 | int rc;
|
---|
4002 |
|
---|
4003 | LogFlow(("VGDrvCommonIoCtl: iFunction=%#x pDevExt=%p pSession=%p pReqHdr=%p cbReq=%zu\n",
|
---|
4004 | iFunction, pDevExt, pSession, pReqHdr, cbReq));
|
---|
4005 |
|
---|
4006 | /*
|
---|
4007 | * Define some helper macros to simplify validation.
|
---|
4008 | */
|
---|
4009 | #define REQ_CHECK_SIZES_EX(Name, cbInExpect, cbOutExpect) \
|
---|
4010 | do { \
|
---|
4011 | if (RT_LIKELY( pReqHdr->cbIn == (cbInExpect) \
|
---|
4012 | && ( pReqHdr->cbOut == (cbOutExpect) \
|
---|
4013 | || ((cbInExpect) == (cbOutExpect) && pReqHdr->cbOut == 0) ) )) \
|
---|
4014 | { /* likely */ } \
|
---|
4015 | else \
|
---|
4016 | { \
|
---|
4017 | Log(( #Name ": Invalid input/output sizes. cbIn=%ld expected %ld. cbOut=%ld expected %ld.\n", \
|
---|
4018 | (long)pReqHdr->cbIn, (long)(cbInExpect), (long)pReqHdr->cbOut, (long)(cbOutExpect))); \
|
---|
4019 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
4020 | } \
|
---|
4021 | } while (0)
|
---|
4022 |
|
---|
4023 | #define REQ_CHECK_SIZES(Name) REQ_CHECK_SIZES_EX(Name, Name ## _SIZE_IN, Name ## _SIZE_OUT)
|
---|
4024 |
|
---|
4025 | #define REQ_CHECK_SIZE_IN(Name, cbInExpect) \
|
---|
4026 | do { \
|
---|
4027 | if (RT_LIKELY(pReqHdr->cbIn == (cbInExpect))) \
|
---|
4028 | { /* likely */ } \
|
---|
4029 | else \
|
---|
4030 | { \
|
---|
4031 | Log(( #Name ": Invalid input/output sizes. cbIn=%ld expected %ld.\n", \
|
---|
4032 | (long)pReqHdr->cbIn, (long)(cbInExpect))); \
|
---|
4033 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
4034 | } \
|
---|
4035 | } while (0)
|
---|
4036 |
|
---|
4037 | #define REQ_CHECK_SIZE_OUT(Name, cbOutExpect) \
|
---|
4038 | do { \
|
---|
4039 | if (RT_LIKELY( pReqHdr->cbOut == (cbOutExpect) \
|
---|
4040 | || (pReqHdr->cbOut == 0 && pReqHdr->cbIn == (cbOutExpect)))) \
|
---|
4041 | { /* likely */ } \
|
---|
4042 | else \
|
---|
4043 | { \
|
---|
4044 | Log(( #Name ": Invalid input/output sizes. cbOut=%ld (%ld) expected %ld.\n", \
|
---|
4045 | (long)pReqHdr->cbOut, (long)pReqHdr->cbIn, (long)(cbOutExpect))); \
|
---|
4046 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
4047 | } \
|
---|
4048 | } while (0)
|
---|
4049 |
|
---|
4050 | #define REQ_CHECK_EXPR(Name, expr) \
|
---|
4051 | do { \
|
---|
4052 | if (RT_LIKELY(!!(expr))) \
|
---|
4053 | { /* likely */ } \
|
---|
4054 | else \
|
---|
4055 | { \
|
---|
4056 | Log(( #Name ": %s\n", #expr)); \
|
---|
4057 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
4058 | } \
|
---|
4059 | } while (0)
|
---|
4060 |
|
---|
4061 | #define REQ_CHECK_EXPR_FMT(expr, fmt) \
|
---|
4062 | do { \
|
---|
4063 | if (RT_LIKELY(!!(expr))) \
|
---|
4064 | { /* likely */ } \
|
---|
4065 | else \
|
---|
4066 | { \
|
---|
4067 | Log( fmt ); \
|
---|
4068 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
4069 | } \
|
---|
4070 | } while (0)
|
---|
4071 |
|
---|
4072 | #define REQ_CHECK_RING0(mnemonic) \
|
---|
4073 | do { \
|
---|
4074 | if (pSession->R0Process != NIL_RTR0PROCESS) \
|
---|
4075 | { \
|
---|
4076 | LogFunc((mnemonic ": Ring-0 only, caller is %RTproc/%p\n", \
|
---|
4077 | pSession->Process, (uintptr_t)pSession->R0Process)); \
|
---|
4078 | return pReqHdr->rc = VERR_PERMISSION_DENIED; \
|
---|
4079 | } \
|
---|
4080 | } while (0)
|
---|
4081 |
|
---|
4082 |
|
---|
4083 | /*
|
---|
4084 | * Validate the request.
|
---|
4085 | */
|
---|
4086 | if (RT_LIKELY(cbReq >= sizeof(*pReqHdr)))
|
---|
4087 | { /* likely */ }
|
---|
4088 | else
|
---|
4089 | {
|
---|
4090 | Log(("VGDrvCommonIoCtl: Bad ioctl request size; cbReq=%#lx\n", (long)cbReq));
|
---|
4091 | return VERR_INVALID_PARAMETER;
|
---|
4092 | }
|
---|
4093 |
|
---|
4094 | if (pReqHdr->cbOut == 0)
|
---|
4095 | pReqHdr->cbOut = pReqHdr->cbIn;
|
---|
4096 |
|
---|
4097 | if (RT_LIKELY( pReqHdr->uVersion == VBGLREQHDR_VERSION
|
---|
4098 | && pReqHdr->cbIn >= sizeof(*pReqHdr)
|
---|
4099 | && pReqHdr->cbIn <= cbReq
|
---|
4100 | && pReqHdr->cbOut >= sizeof(*pReqHdr)
|
---|
4101 | && pReqHdr->cbOut <= cbReq))
|
---|
4102 | { /* likely */ }
|
---|
4103 | else
|
---|
4104 | {
|
---|
4105 | Log(("VGDrvCommonIoCtl: Bad ioctl request header; cbIn=%#lx cbOut=%#lx version=%#lx\n",
|
---|
4106 | (long)pReqHdr->cbIn, (long)pReqHdr->cbOut, (long)pReqHdr->uVersion));
|
---|
4107 | return VERR_INVALID_PARAMETER;
|
---|
4108 | }
|
---|
4109 |
|
---|
4110 | if (RT_LIKELY(RT_VALID_PTR(pSession)))
|
---|
4111 | { /* likely */ }
|
---|
4112 | else
|
---|
4113 | {
|
---|
4114 | Log(("VGDrvCommonIoCtl: Invalid pSession value %p (ioctl=%#x)\n", pSession, iFunction));
|
---|
4115 | return VERR_INVALID_PARAMETER;
|
---|
4116 | }
|
---|
4117 |
|
---|
4118 |
|
---|
4119 | /*
|
---|
4120 | * Deal with variably sized requests first.
|
---|
4121 | */
|
---|
4122 | rc = VINF_SUCCESS;
|
---|
4123 | if ( iFunctionStripped == VBGL_IOCTL_CODE_STRIPPED(VBGL_IOCTL_VMMDEV_REQUEST(0))
|
---|
4124 | || iFunctionStripped == VBGL_IOCTL_CODE_STRIPPED(VBGL_IOCTL_VMMDEV_REQUEST_BIG) )
|
---|
4125 | {
|
---|
4126 | REQ_CHECK_EXPR(VBGL_IOCTL_VMMDEV_REQUEST, pReqHdr->uType != VBGLREQHDR_TYPE_DEFAULT);
|
---|
4127 | REQ_CHECK_EXPR_FMT(pReqHdr->cbIn == pReqHdr->cbOut,
|
---|
4128 | ("VBGL_IOCTL_VMMDEV_REQUEST: cbIn=%ld != cbOut=%ld\n", (long)pReqHdr->cbIn, (long)pReqHdr->cbOut));
|
---|
4129 | pReqHdr->rc = vgdrvIoCtl_VMMDevRequest(pDevExt, pSession, (VMMDevRequestHeader *)pReqHdr, cbReq);
|
---|
4130 | }
|
---|
4131 | else if (RT_LIKELY(pReqHdr->uType == VBGLREQHDR_TYPE_DEFAULT))
|
---|
4132 | {
|
---|
4133 | if (iFunctionStripped == VBGL_IOCTL_CODE_STRIPPED(VBGL_IOCTL_LOG(0)))
|
---|
4134 | {
|
---|
4135 | REQ_CHECK_SIZE_OUT(VBGL_IOCTL_LOG, VBGL_IOCTL_LOG_SIZE_OUT);
|
---|
4136 | pReqHdr->rc = vgdrvIoCtl_Log(pDevExt, &((PVBGLIOCLOG)pReqHdr)->u.In.szMsg[0], pReqHdr->cbIn - sizeof(VBGLREQHDR),
|
---|
4137 | pSession->fUserSession);
|
---|
4138 | }
|
---|
4139 | #ifdef VBOX_WITH_HGCM
|
---|
4140 | else if (iFunction == VBGL_IOCTL_IDC_HGCM_FAST_CALL) /* (is variable size, but we don't bother encoding it) */
|
---|
4141 | {
|
---|
4142 | REQ_CHECK_RING0("VBGL_IOCTL_IDC_HGCM_FAST_CALL");
|
---|
4143 | REQ_CHECK_EXPR(VBGL_IOCTL_IDC_HGCM_FAST_CALL, cbReq >= sizeof(VBGLIOCIDCHGCMFASTCALL) + sizeof(VMMDevHGCMCall));
|
---|
4144 | pReqHdr->rc = vgdrvIoCtl_HGCMFastCall(pDevExt, (VBGLIOCIDCHGCMFASTCALL volatile *)pReqHdr);
|
---|
4145 | }
|
---|
4146 | else if ( iFunctionStripped == VBGL_IOCTL_CODE_STRIPPED(VBGL_IOCTL_HGCM_CALL(0))
|
---|
4147 | # if ARCH_BITS == 64
|
---|
4148 | || iFunctionStripped == VBGL_IOCTL_CODE_STRIPPED(VBGL_IOCTL_HGCM_CALL_32(0))
|
---|
4149 | # endif
|
---|
4150 | )
|
---|
4151 | {
|
---|
4152 | REQ_CHECK_EXPR(VBGL_IOCTL_HGCM_CALL, pReqHdr->cbIn >= sizeof(VBGLIOCHGCMCALL));
|
---|
4153 | REQ_CHECK_EXPR(VBGL_IOCTL_HGCM_CALL, pReqHdr->cbIn == pReqHdr->cbOut);
|
---|
4154 | pReqHdr->rc = vgdrvIoCtl_HGCMCallWrapper(pDevExt, pSession, (PVBGLIOCHGCMCALL)pReqHdr,
|
---|
4155 | iFunctionStripped == VBGL_IOCTL_CODE_STRIPPED(VBGL_IOCTL_HGCM_CALL_32(0)),
|
---|
4156 | false /*fUserData*/, cbReq);
|
---|
4157 | }
|
---|
4158 | else if (iFunctionStripped == VBGL_IOCTL_CODE_STRIPPED(VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA(0)))
|
---|
4159 | {
|
---|
4160 | REQ_CHECK_RING0("VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA");
|
---|
4161 | REQ_CHECK_EXPR(VBGL_IOCTL_HGCM_CALL, pReqHdr->cbIn >= sizeof(VBGLIOCHGCMCALL));
|
---|
4162 | REQ_CHECK_EXPR(VBGL_IOCTL_HGCM_CALL, pReqHdr->cbIn == pReqHdr->cbOut);
|
---|
4163 | pReqHdr->rc = vgdrvIoCtl_HGCMCallWrapper(pDevExt, pSession, (PVBGLIOCHGCMCALL)pReqHdr,
|
---|
4164 | ARCH_BITS == 32, true /*fUserData*/, cbReq);
|
---|
4165 | }
|
---|
4166 | #endif /* VBOX_WITH_HGCM */
|
---|
4167 | else
|
---|
4168 | {
|
---|
4169 | switch (iFunction)
|
---|
4170 | {
|
---|
4171 | /*
|
---|
4172 | * Ring-0 only:
|
---|
4173 | */
|
---|
4174 | case VBGL_IOCTL_IDC_CONNECT:
|
---|
4175 | REQ_CHECK_RING0("VBGL_IOCL_IDC_CONNECT");
|
---|
4176 | REQ_CHECK_SIZES(VBGL_IOCTL_IDC_CONNECT);
|
---|
4177 | pReqHdr->rc = vgdrvIoCtl_IdcConnect(pDevExt, pSession, (PVBGLIOCIDCCONNECT)pReqHdr);
|
---|
4178 | break;
|
---|
4179 |
|
---|
4180 | case VBGL_IOCTL_IDC_DISCONNECT:
|
---|
4181 | REQ_CHECK_RING0("VBGL_IOCTL_IDC_DISCONNECT");
|
---|
4182 | REQ_CHECK_SIZES(VBGL_IOCTL_IDC_DISCONNECT);
|
---|
4183 | pReqHdr->rc = vgdrvIoCtl_IdcDisconnect(pDevExt, pSession, (PVBGLIOCIDCDISCONNECT)pReqHdr);
|
---|
4184 | break;
|
---|
4185 |
|
---|
4186 | case VBGL_IOCTL_GET_VMMDEV_IO_INFO:
|
---|
4187 | REQ_CHECK_RING0("GET_VMMDEV_IO_INFO");
|
---|
4188 | REQ_CHECK_SIZES(VBGL_IOCTL_GET_VMMDEV_IO_INFO);
|
---|
4189 | pReqHdr->rc = vgdrvIoCtl_GetVMMDevIoInfo(pDevExt, (PVBGLIOCGETVMMDEVIOINFO)pReqHdr);
|
---|
4190 | break;
|
---|
4191 |
|
---|
4192 | case VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK:
|
---|
4193 | REQ_CHECK_RING0("SET_MOUSE_NOTIFY_CALLBACK");
|
---|
4194 | REQ_CHECK_SIZES(VBGL_IOCTL_SET_MOUSE_NOTIFY_CALLBACK);
|
---|
4195 | pReqHdr->rc = vgdrvIoCtl_SetMouseNotifyCallback(pDevExt, (PVBGLIOCSETMOUSENOTIFYCALLBACK)pReqHdr);
|
---|
4196 | break;
|
---|
4197 |
|
---|
4198 | /*
|
---|
4199 | * Ring-3 only:
|
---|
4200 | */
|
---|
4201 | case VBGL_IOCTL_DRIVER_VERSION_INFO:
|
---|
4202 | REQ_CHECK_SIZES(VBGL_IOCTL_DRIVER_VERSION_INFO);
|
---|
4203 | pReqHdr->rc = vgdrvIoCtl_DriverVersionInfo(pDevExt, pSession, (PVBGLIOCDRIVERVERSIONINFO)pReqHdr);
|
---|
4204 | break;
|
---|
4205 |
|
---|
4206 | /*
|
---|
4207 | * Both ring-3 and ring-0:
|
---|
4208 | */
|
---|
4209 | case VBGL_IOCTL_WAIT_FOR_EVENTS:
|
---|
4210 | REQ_CHECK_SIZES(VBGL_IOCTL_WAIT_FOR_EVENTS);
|
---|
4211 | pReqHdr->rc = vgdrvIoCtl_WaitForEvents(pDevExt, pSession, (VBGLIOCWAITFOREVENTS *)pReqHdr,
|
---|
4212 | pSession->R0Process != NIL_RTR0PROCESS);
|
---|
4213 | break;
|
---|
4214 |
|
---|
4215 | case VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS:
|
---|
4216 | REQ_CHECK_SIZES(VBGL_IOCTL_INTERRUPT_ALL_WAIT_FOR_EVENTS);
|
---|
4217 | pReqHdr->rc = vgdrvIoCtl_CancelAllWaitEvents(pDevExt, pSession);
|
---|
4218 | break;
|
---|
4219 |
|
---|
4220 | case VBGL_IOCTL_CHANGE_FILTER_MASK:
|
---|
4221 | REQ_CHECK_SIZES(VBGL_IOCTL_CHANGE_FILTER_MASK);
|
---|
4222 | pReqHdr->rc = vgdrvIoCtl_ChangeFilterMask(pDevExt, pSession, (PVBGLIOCCHANGEFILTERMASK)pReqHdr);
|
---|
4223 | break;
|
---|
4224 |
|
---|
4225 | #ifdef VBOX_WITH_HGCM
|
---|
4226 | case VBGL_IOCTL_HGCM_CONNECT:
|
---|
4227 | REQ_CHECK_SIZES(VBGL_IOCTL_HGCM_CONNECT);
|
---|
4228 | pReqHdr->rc = vgdrvIoCtl_HGCMConnect(pDevExt, pSession, (PVBGLIOCHGCMCONNECT)pReqHdr);
|
---|
4229 | break;
|
---|
4230 |
|
---|
4231 | case VBGL_IOCTL_HGCM_DISCONNECT:
|
---|
4232 | REQ_CHECK_SIZES(VBGL_IOCTL_HGCM_DISCONNECT);
|
---|
4233 | pReqHdr->rc = vgdrvIoCtl_HGCMDisconnect(pDevExt, pSession, (PVBGLIOCHGCMDISCONNECT)pReqHdr);
|
---|
4234 | break;
|
---|
4235 | #endif
|
---|
4236 |
|
---|
4237 | case VBGL_IOCTL_CHECK_BALLOON:
|
---|
4238 | REQ_CHECK_SIZES(VBGL_IOCTL_CHECK_BALLOON);
|
---|
4239 | pReqHdr->rc = vgdrvIoCtl_CheckMemoryBalloon(pDevExt, pSession, (PVBGLIOCCHECKBALLOON)pReqHdr);
|
---|
4240 | break;
|
---|
4241 |
|
---|
4242 | case VBGL_IOCTL_CHANGE_BALLOON:
|
---|
4243 | REQ_CHECK_SIZES(VBGL_IOCTL_CHANGE_BALLOON);
|
---|
4244 | pReqHdr->rc = vgdrvIoCtl_ChangeMemoryBalloon(pDevExt, pSession, (PVBGLIOCCHANGEBALLOON)pReqHdr);
|
---|
4245 | break;
|
---|
4246 |
|
---|
4247 | case VBGL_IOCTL_WRITE_CORE_DUMP:
|
---|
4248 | REQ_CHECK_SIZES(VBGL_IOCTL_WRITE_CORE_DUMP);
|
---|
4249 | pReqHdr->rc = vgdrvIoCtl_WriteCoreDump(pDevExt, pSession, (PVBGLIOCWRITECOREDUMP)pReqHdr);
|
---|
4250 | break;
|
---|
4251 |
|
---|
4252 | case VBGL_IOCTL_SET_MOUSE_STATUS:
|
---|
4253 | REQ_CHECK_SIZES(VBGL_IOCTL_SET_MOUSE_STATUS);
|
---|
4254 | pReqHdr->rc = vgdrvIoCtl_SetMouseStatus(pDevExt, pSession, ((PVBGLIOCSETMOUSESTATUS)pReqHdr)->u.In.fStatus);
|
---|
4255 | break;
|
---|
4256 |
|
---|
4257 | case VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES:
|
---|
4258 | REQ_CHECK_SIZES(VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES);
|
---|
4259 | pReqHdr->rc = vgdrvIoCtl_GuestCapsAcquire(pDevExt, pSession, (PVBGLIOCACQUIREGUESTCAPS)pReqHdr);
|
---|
4260 | break;
|
---|
4261 |
|
---|
4262 | case VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES:
|
---|
4263 | REQ_CHECK_SIZES(VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES);
|
---|
4264 | pReqHdr->rc = vgdrvIoCtl_SetCapabilities(pDevExt, pSession, (PVBGLIOCSETGUESTCAPS)pReqHdr);
|
---|
4265 | break;
|
---|
4266 |
|
---|
4267 | #ifdef VBOX_WITH_DPC_LATENCY_CHECKER
|
---|
4268 | case VBGL_IOCTL_DPC_LATENCY_CHECKER:
|
---|
4269 | REQ_CHECK_SIZES(VBGL_IOCTL_DPC_LATENCY_CHECKER);
|
---|
4270 | pReqHdr->rc = VGDrvNtIOCtl_DpcLatencyChecker();
|
---|
4271 | break;
|
---|
4272 | #endif
|
---|
4273 |
|
---|
4274 | default:
|
---|
4275 | {
|
---|
4276 | LogRel(("VGDrvCommonIoCtl: Unknown request iFunction=%#x (stripped %#x) cbReq=%#x\n",
|
---|
4277 | iFunction, iFunctionStripped, cbReq));
|
---|
4278 | pReqHdr->rc = rc = VERR_NOT_SUPPORTED;
|
---|
4279 | break;
|
---|
4280 | }
|
---|
4281 | }
|
---|
4282 | }
|
---|
4283 | }
|
---|
4284 | else
|
---|
4285 | {
|
---|
4286 | Log(("VGDrvCommonIoCtl: uType=%#x, expected default (ioctl=%#x)\n", pReqHdr->uType, iFunction));
|
---|
4287 | return VERR_INVALID_PARAMETER;
|
---|
4288 | }
|
---|
4289 |
|
---|
4290 | LogFlow(("VGDrvCommonIoCtl: returns %Rrc (req: rc=%Rrc cbOut=%#x)\n", rc, pReqHdr->rc, pReqHdr->cbOut));
|
---|
4291 | return rc;
|
---|
4292 | }
|
---|
4293 |
|
---|
4294 |
|
---|
4295 | /**
|
---|
4296 | * Used by VGDrvCommonISR as well as the acquire guest capability code.
|
---|
4297 | *
|
---|
4298 | * @returns VINF_SUCCESS on success. On failure, ORed together
|
---|
4299 | * RTSemEventMultiSignal errors (completes processing despite errors).
|
---|
4300 | * @param pDevExt The VBoxGuest device extension.
|
---|
4301 | * @param fEvents The events to dispatch.
|
---|
4302 | */
|
---|
4303 | static int vgdrvDispatchEventsLocked(PVBOXGUESTDEVEXT pDevExt, uint32_t fEvents)
|
---|
4304 | {
|
---|
4305 | PVBOXGUESTWAIT pWait;
|
---|
4306 | PVBOXGUESTWAIT pSafe;
|
---|
4307 | int rc = VINF_SUCCESS;
|
---|
4308 |
|
---|
4309 | fEvents |= pDevExt->f32PendingEvents;
|
---|
4310 |
|
---|
4311 | RTListForEachSafe(&pDevExt->WaitList, pWait, pSafe, VBOXGUESTWAIT, ListNode)
|
---|
4312 | {
|
---|
4313 | uint32_t fHandledEvents = pWait->fReqEvents & fEvents;
|
---|
4314 | if ( fHandledEvents != 0
|
---|
4315 | && !pWait->fResEvents)
|
---|
4316 | {
|
---|
4317 | /* Does this one wait on any of the events we're dispatching? We do a quick
|
---|
4318 | check first, then deal with VBOXGUEST_ACQUIRE_STYLE_EVENTS as applicable. */
|
---|
4319 | if (fHandledEvents & VBOXGUEST_ACQUIRE_STYLE_EVENTS)
|
---|
4320 | fHandledEvents &= vgdrvGetAllowedEventMaskForSession(pDevExt, pWait->pSession);
|
---|
4321 | if (fHandledEvents)
|
---|
4322 | {
|
---|
4323 | pWait->fResEvents = pWait->fReqEvents & fEvents & fHandledEvents;
|
---|
4324 | fEvents &= ~pWait->fResEvents;
|
---|
4325 | RTListNodeRemove(&pWait->ListNode);
|
---|
4326 | #ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
4327 | RTListAppend(&pDevExt->WakeUpList, &pWait->ListNode);
|
---|
4328 | #else
|
---|
4329 | RTListAppend(&pDevExt->WokenUpList, &pWait->ListNode);
|
---|
4330 | rc |= RTSemEventMultiSignal(pWait->Event);
|
---|
4331 | #endif
|
---|
4332 | if (!fEvents)
|
---|
4333 | break;
|
---|
4334 | }
|
---|
4335 | }
|
---|
4336 | }
|
---|
4337 |
|
---|
4338 | ASMAtomicWriteU32(&pDevExt->f32PendingEvents, fEvents);
|
---|
4339 | return rc;
|
---|
4340 | }
|
---|
4341 |
|
---|
4342 |
|
---|
4343 | /**
|
---|
4344 | * Simply checks whether the IRQ is ours or not, does not do any interrupt
|
---|
4345 | * procesing.
|
---|
4346 | *
|
---|
4347 | * @returns true if it was our interrupt, false if it wasn't.
|
---|
4348 | * @param pDevExt The VBoxGuest device extension.
|
---|
4349 | */
|
---|
4350 | bool VGDrvCommonIsOurIRQ(PVBOXGUESTDEVEXT pDevExt)
|
---|
4351 | {
|
---|
4352 | VMMDevMemory volatile *pVMMDevMemory;
|
---|
4353 | bool fOurIrq;
|
---|
4354 |
|
---|
4355 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
4356 | pVMMDevMemory = pDevExt->pVMMDevMemory;
|
---|
4357 | fOurIrq = pVMMDevMemory ? pVMMDevMemory->V.V1_04.fHaveEvents : false;
|
---|
4358 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
4359 |
|
---|
4360 | return fOurIrq;
|
---|
4361 | }
|
---|
4362 |
|
---|
4363 |
|
---|
4364 | /**
|
---|
4365 | * Common interrupt service routine.
|
---|
4366 | *
|
---|
4367 | * This deals with events and with waking up thread waiting for those events.
|
---|
4368 | *
|
---|
4369 | * @returns true if it was our interrupt, false if it wasn't.
|
---|
4370 | * @param pDevExt The VBoxGuest device extension.
|
---|
4371 | */
|
---|
4372 | bool VGDrvCommonISR(PVBOXGUESTDEVEXT pDevExt)
|
---|
4373 | {
|
---|
4374 | VMMDevEvents volatile *pReq;
|
---|
4375 | bool fMousePositionChanged = false;
|
---|
4376 | int rc = 0;
|
---|
4377 | VMMDevMemory volatile *pVMMDevMemory;
|
---|
4378 | bool fOurIrq;
|
---|
4379 |
|
---|
4380 | /*
|
---|
4381 | * Make sure we've initialized the device extension.
|
---|
4382 | */
|
---|
4383 | if (RT_LIKELY(pDevExt->fHostFeatures & VMMDEV_HVF_FAST_IRQ_ACK))
|
---|
4384 | pReq = NULL;
|
---|
4385 | else if (RT_LIKELY((pReq = pDevExt->pIrqAckEvents) != NULL))
|
---|
4386 | { /* likely */ }
|
---|
4387 | else
|
---|
4388 | return false;
|
---|
4389 |
|
---|
4390 | /*
|
---|
4391 | * Enter the spinlock and check if it's our IRQ or not.
|
---|
4392 | */
|
---|
4393 | RTSpinlockAcquire(pDevExt->EventSpinlock);
|
---|
4394 | pVMMDevMemory = pDevExt->pVMMDevMemory;
|
---|
4395 | fOurIrq = pVMMDevMemory ? pVMMDevMemory->V.V1_04.fHaveEvents : false;
|
---|
4396 | if (fOurIrq)
|
---|
4397 | {
|
---|
4398 | /*
|
---|
4399 | * Acknowledge events.
|
---|
4400 | * We don't use VbglR0GRPerform here as it may take another spinlocks.
|
---|
4401 | */
|
---|
4402 | uint32_t fEvents;
|
---|
4403 | if (!pReq)
|
---|
4404 | {
|
---|
4405 | fEvents = ASMInU32(pDevExt->IOPortBase + VMMDEV_PORT_OFF_REQUEST_FAST);
|
---|
4406 | ASMCompilerBarrier(); /* paranoia */
|
---|
4407 | rc = fEvents != UINT32_MAX ? VINF_SUCCESS : VERR_INTERNAL_ERROR;
|
---|
4408 | }
|
---|
4409 | else
|
---|
4410 | {
|
---|
4411 | pReq->header.rc = VERR_INTERNAL_ERROR;
|
---|
4412 | pReq->events = 0;
|
---|
4413 | ASMCompilerBarrier();
|
---|
4414 | ASMOutU32(pDevExt->IOPortBase + VMMDEV_PORT_OFF_REQUEST, (uint32_t)pDevExt->PhysIrqAckEvents);
|
---|
4415 | ASMCompilerBarrier(); /* paranoia */
|
---|
4416 | fEvents = pReq->events;
|
---|
4417 | rc = pReq->header.rc;
|
---|
4418 | }
|
---|
4419 | if (RT_SUCCESS(rc))
|
---|
4420 | {
|
---|
4421 | Log3(("VGDrvCommonISR: acknowledge events succeeded %#RX32\n", fEvents));
|
---|
4422 |
|
---|
4423 | /*
|
---|
4424 | * VMMDEV_EVENT_MOUSE_POSITION_CHANGED can only be polled for.
|
---|
4425 | */
|
---|
4426 | if (fEvents & VMMDEV_EVENT_MOUSE_POSITION_CHANGED)
|
---|
4427 | {
|
---|
4428 | fMousePositionChanged = true;
|
---|
4429 | fEvents &= ~VMMDEV_EVENT_MOUSE_POSITION_CHANGED;
|
---|
4430 | #if !defined(VBOXGUEST_MOUSE_NOTIFY_CAN_PREEMPT)
|
---|
4431 | if (pDevExt->pfnMouseNotifyCallback)
|
---|
4432 | pDevExt->pfnMouseNotifyCallback(pDevExt->pvMouseNotifyCallbackArg);
|
---|
4433 | #endif
|
---|
4434 | }
|
---|
4435 |
|
---|
4436 | #ifdef VBOX_WITH_HGCM
|
---|
4437 | /*
|
---|
4438 | * The HGCM event/list is kind of different in that we evaluate all entries.
|
---|
4439 | */
|
---|
4440 | if (fEvents & VMMDEV_EVENT_HGCM)
|
---|
4441 | {
|
---|
4442 | PVBOXGUESTWAIT pWait;
|
---|
4443 | PVBOXGUESTWAIT pSafe;
|
---|
4444 | RTListForEachSafe(&pDevExt->HGCMWaitList, pWait, pSafe, VBOXGUESTWAIT, ListNode)
|
---|
4445 | {
|
---|
4446 | if (pWait->pHGCMReq->fu32Flags & VBOX_HGCM_REQ_DONE)
|
---|
4447 | {
|
---|
4448 | pWait->fResEvents = VMMDEV_EVENT_HGCM;
|
---|
4449 | RTListNodeRemove(&pWait->ListNode);
|
---|
4450 | # ifdef VBOXGUEST_USE_DEFERRED_WAKE_UP
|
---|
4451 | RTListAppend(&pDevExt->WakeUpList, &pWait->ListNode);
|
---|
4452 | # else
|
---|
4453 | RTListAppend(&pDevExt->WokenUpList, &pWait->ListNode);
|
---|
4454 | rc |= RTSemEventMultiSignal(pWait->Event);
|
---|
4455 | # endif
|
---|
4456 | }
|
---|
4457 | }
|
---|
4458 | fEvents &= ~VMMDEV_EVENT_HGCM;
|
---|
4459 | }
|
---|
4460 | #endif
|
---|
4461 |
|
---|
4462 | /*
|
---|
4463 | * Normal FIFO waiter evaluation.
|
---|
4464 | */
|
---|
4465 | rc |= vgdrvDispatchEventsLocked(pDevExt, fEvents);
|
---|
4466 | }
|
---|
4467 | else /* something is serious wrong... */
|
---|
4468 | Log(("VGDrvCommonISR: acknowledge events failed rc=%Rrc (events=%#x)!!\n", rc, fEvents));
|
---|
4469 | }
|
---|
4470 | else
|
---|
4471 | Log3(("VGDrvCommonISR: not ours\n"));
|
---|
4472 |
|
---|
4473 | RTSpinlockRelease(pDevExt->EventSpinlock);
|
---|
4474 |
|
---|
4475 | /*
|
---|
4476 | * Execute the mouse notification callback here if it cannot be executed while
|
---|
4477 | * holding the interrupt safe spinlock, see @bugref{8639}.
|
---|
4478 | */
|
---|
4479 | #if defined(VBOXGUEST_MOUSE_NOTIFY_CAN_PREEMPT) && !defined(RT_OS_WINDOWS) /* (Windows does this in the Dpc callback) */
|
---|
4480 | if ( fMousePositionChanged
|
---|
4481 | && pDevExt->pfnMouseNotifyCallback)
|
---|
4482 | pDevExt->pfnMouseNotifyCallback(pDevExt->pvMouseNotifyCallbackArg);
|
---|
4483 | #endif
|
---|
4484 |
|
---|
4485 | #if defined(VBOXGUEST_USE_DEFERRED_WAKE_UP) && !defined(RT_OS_WINDOWS)
|
---|
4486 | /*
|
---|
4487 | * Do wake-ups.
|
---|
4488 | * Note. On Windows this isn't possible at this IRQL, so a DPC will take
|
---|
4489 | * care of it. Same on darwin, doing it in the work loop callback.
|
---|
4490 | */
|
---|
4491 | VGDrvCommonWaitDoWakeUps(pDevExt);
|
---|
4492 | #endif
|
---|
4493 |
|
---|
4494 | /*
|
---|
4495 | * Work the poll and async notification queues on OSes that implements that.
|
---|
4496 | * (Do this outside the spinlock to prevent some recursive spinlocking.)
|
---|
4497 | */
|
---|
4498 | if (fMousePositionChanged)
|
---|
4499 | {
|
---|
4500 | ASMAtomicIncU32(&pDevExt->u32MousePosChangedSeq);
|
---|
4501 | VGDrvNativeISRMousePollEvent(pDevExt);
|
---|
4502 | }
|
---|
4503 |
|
---|
4504 | AssertMsg(rc == 0, ("rc=%#x (%d)\n", rc, rc));
|
---|
4505 | return fOurIrq;
|
---|
4506 | }
|
---|