1 | /* $Id: DrvVD.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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2 | /** @file
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3 | * DrvVD - Generic VBox disk media driver.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 |
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29 | /*********************************************************************************************************************************
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30 | * Header files *
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31 | *********************************************************************************************************************************/
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32 | #define LOG_GROUP LOG_GROUP_DRV_VD
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33 | #include <VBox/vd.h>
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34 | #include <VBox/vmm/pdmdrv.h>
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35 | #include <VBox/vmm/pdmstorageifs.h>
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36 | #include <VBox/vmm/pdmasynccompletion.h>
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37 | #include <VBox/vmm/pdmblkcache.h>
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38 | #include <VBox/vmm/ssm.h>
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39 | #include <iprt/asm.h>
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40 | #include <iprt/alloc.h>
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41 | #include <iprt/assert.h>
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42 | #include <iprt/uuid.h>
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43 | #include <iprt/file.h>
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44 | #include <iprt/string.h>
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45 | #include <iprt/semaphore.h>
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46 | #include <iprt/sg.h>
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47 | #include <iprt/system.h>
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48 | #include <iprt/memsafer.h>
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49 | #include <iprt/memcache.h>
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50 | #include <iprt/list.h>
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51 |
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52 | #ifdef VBOX_WITH_INIP
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53 | /* All lwip header files are not C++ safe. So hack around this. */
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54 | RT_C_DECLS_BEGIN
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55 | #include <lwip/opt.h>
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56 | #include <lwip/inet.h>
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57 | #include <lwip/tcp.h>
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58 | #include <lwip/sockets.h>
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59 | # if LWIP_IPV6
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60 | # include <lwip/inet6.h>
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61 | # endif
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62 | RT_C_DECLS_END
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63 | #endif /* VBOX_WITH_INIP */
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64 |
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65 | #include "HBDMgmt.h"
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66 | #include "IOBufMgmt.h"
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67 |
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68 | #include "VBoxDD.h"
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69 |
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70 | #ifdef VBOX_WITH_INIP
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71 | /* Small hack to get at lwIP initialized status */
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72 | extern bool DevINIPConfigured(void);
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73 | #endif /* VBOX_WITH_INIP */
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74 |
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75 |
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76 | /** @def VBOX_PERIODIC_FLUSH
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77 | * Enable support for periodically flushing the VDI to disk. This may prove
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78 | * useful for those nasty problems with the ultra-slow host filesystems.
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79 | * If this is enabled, it can be configured via the CFGM key
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80 | * "VBoxInternal/Devices/piix3ide/0/LUN#<x>/Config/FlushInterval". @verbatim<x>@endverbatim
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81 | * must be replaced with the correct LUN number of the disk that should
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82 | * do the periodic flushes. The value of the key is the number of bytes
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83 | * written between flushes. A value of 0 (the default) denotes no flushes. */
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84 | #define VBOX_PERIODIC_FLUSH
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85 |
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86 | /** @def VBOX_IGNORE_FLUSH
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87 | * Enable support for ignoring VDI flush requests. This can be useful for
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88 | * filesystems that show bad guest IDE write performance (especially with
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89 | * Windows guests). NOTE that this does not disable the flushes caused by
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90 | * the periodic flush cache feature above.
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91 | * If this feature is enabled, it can be configured via the CFGM key
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92 | * "VBoxInternal/Devices/piix3ide/0/LUN#<x>/Config/IgnoreFlush". @verbatim<x>@endverbatim
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93 | * must be replaced with the correct LUN number of the disk that should
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94 | * ignore flush requests. The value of the key is a boolean. The default
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95 | * is to ignore flushes, i.e. true. */
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96 | #define VBOX_IGNORE_FLUSH
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97 |
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98 |
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99 | /*********************************************************************************************************************************
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100 | * Defined types, constants and macros *
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101 | *********************************************************************************************************************************/
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102 |
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103 | /** Converts a pointer to VBOXDISK::IMedia to a PVBOXDISK. */
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104 | #define PDMIMEDIA_2_VBOXDISK(pInterface) \
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105 | ( (PVBOXDISK)((uintptr_t)pInterface - RT_UOFFSETOF(VBOXDISK, IMedia)) )
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106 |
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107 | /** Saved state version of an I/O request .*/
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108 | #define DRVVD_IOREQ_SAVED_STATE_VERSION UINT32_C(1)
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109 | /** Maximum number of request errors in the release log before muting. */
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110 | #define DRVVD_MAX_LOG_REL_ERRORS 100
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111 |
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112 | /** Forward declaration for the dis kcontainer. */
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113 | typedef struct VBOXDISK *PVBOXDISK;
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114 |
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115 | /**
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116 | * VBox disk container, image information, private part.
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117 | */
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118 |
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119 | typedef struct VBOXIMAGE
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120 | {
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121 | /** Pointer to next image. */
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122 | struct VBOXIMAGE *pNext;
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123 | /** Pointer to list of VD interfaces. Per-image. */
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124 | PVDINTERFACE pVDIfsImage;
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125 | /** Configuration information interface. */
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126 | VDINTERFACECONFIG VDIfConfig;
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127 | /** TCP network stack instance for host mode. */
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128 | VDIFINST hVdIfTcpNet;
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129 | /** TCP network stack interface (for INIP). */
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130 | VDINTERFACETCPNET VDIfTcpNet;
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131 | /** I/O interface. */
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132 | VDINTERFACEIO VDIfIo;
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133 | } VBOXIMAGE, *PVBOXIMAGE;
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134 |
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135 | /**
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136 | * Storage backend data.
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137 | */
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138 | typedef struct DRVVDSTORAGEBACKEND
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139 | {
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140 | /** The virtual disk driver instance. */
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141 | PVBOXDISK pVD;
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142 | /** PDM async completion end point. */
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143 | PPDMASYNCCOMPLETIONENDPOINT pEndpoint;
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144 | /** The template. */
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145 | PPDMASYNCCOMPLETIONTEMPLATE pTemplate;
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146 | /** Event semaphore for synchronous operations. */
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147 | RTSEMEVENT EventSem;
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148 | /** Flag whether a synchronous operation is currently pending. */
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149 | volatile bool fSyncIoPending;
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150 | /** Return code of the last completed request. */
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151 | int rcReqLast;
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152 | /** Callback routine */
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153 | PFNVDCOMPLETED pfnCompleted;
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154 | } DRVVDSTORAGEBACKEND, *PDRVVDSTORAGEBACKEND;
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155 |
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156 | /**
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157 | * VD I/O request state.
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158 | */
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159 | typedef enum VDIOREQSTATE
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160 | {
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161 | /** Invalid. */
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162 | VDIOREQSTATE_INVALID = 0,
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163 | /** The request is not in use and resides on the free list. */
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164 | VDIOREQSTATE_FREE,
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165 | /** The request was just allocated and is not active. */
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166 | VDIOREQSTATE_ALLOCATED,
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167 | /** The request was allocated and is in use. */
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168 | VDIOREQSTATE_ACTIVE,
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169 | /** The request was suspended and is not actively processed. */
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170 | VDIOREQSTATE_SUSPENDED,
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171 | /** The request is in the last step of completion and syncs memory. */
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172 | VDIOREQSTATE_COMPLETING,
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173 | /** The request completed. */
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174 | VDIOREQSTATE_COMPLETED,
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175 | /** The request was aborted but wasn't returned as complete from the storage
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176 | * layer below us. */
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177 | VDIOREQSTATE_CANCELED,
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178 | /** 32bit hack. */
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179 | VDIOREQSTATE_32BIT_HACK = 0x7fffffff
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180 | } VDIOREQSTATE;
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181 |
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182 | /**
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183 | * VD I/O Request.
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184 | */
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185 | typedef struct PDMMEDIAEXIOREQINT
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186 | {
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187 | /** List node for the list of allocated requests. */
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188 | RTLISTNODE NdAllocatedList;
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189 | /** List for requests waiting for I/O memory or on the redo list. */
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190 | RTLISTNODE NdLstWait;
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191 | /** I/O request type. */
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192 | PDMMEDIAEXIOREQTYPE enmType;
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193 | /** Request state. */
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194 | volatile VDIOREQSTATE enmState;
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195 | /** I/O request ID. */
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196 | PDMMEDIAEXIOREQID uIoReqId;
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197 | /** Pointer to the disk container. */
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198 | PVBOXDISK pDisk;
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199 | /** Flags. */
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200 | uint32_t fFlags;
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201 | /** Timestamp when the request was submitted. */
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202 | uint64_t tsSubmit;
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203 | /** Type dependent data. */
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204 | union
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205 | {
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206 | /** Read/Write request sepcific data. */
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207 | struct
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208 | {
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209 | /** Start offset of the request. */
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210 | uint64_t offStart;
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211 | /** Size of the request. */
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212 | size_t cbReq;
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213 | /** Size left for this request. */
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214 | size_t cbReqLeft;
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215 | /** Size of the allocated I/O buffer. */
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216 | size_t cbIoBuf;
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217 | /** Pointer to the S/G buffer. */
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218 | PRTSGBUF pSgBuf;
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219 | /** Flag whether the pointer is a direct buffer or
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220 | * was allocated by us. */
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221 | bool fDirectBuf;
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222 | /** Buffer management data based on the fDirectBuf flag. */
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223 | union
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224 | {
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225 | /** Direct buffer. */
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226 | struct
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227 | {
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228 | /** Segment for the data buffer. */
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229 | RTSGSEG Seg;
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230 | /** S/G buffer structure. */
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231 | RTSGBUF SgBuf;
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232 | } Direct;
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233 | /** I/O buffer descriptor. */
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234 | IOBUFDESC IoBuf;
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235 | };
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236 | } ReadWrite;
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237 | /** Discard specific data. */
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238 | struct
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239 | {
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240 | /** Pointer to array of ranges to discard. */
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241 | PRTRANGE paRanges;
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242 | /** Number of ranges to discard. */
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243 | unsigned cRanges;
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244 | } Discard;
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245 | };
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246 | /** Allocator specific memory - variable size. */
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247 | uint8_t abAlloc[1];
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248 | } PDMMEDIAEXIOREQINT;
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249 | /** Pointer to a VD I/O request. */
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250 | typedef PDMMEDIAEXIOREQINT *PPDMMEDIAEXIOREQINT;
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251 |
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252 | /**
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253 | * Structure for holding a list of allocated requests.
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254 | */
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255 | typedef struct VDLSTIOREQALLOC
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256 | {
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257 | /** Mutex protecting the table of allocated requests. */
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258 | RTSEMFASTMUTEX hMtxLstIoReqAlloc;
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259 | /** List anchor. */
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260 | RTLISTANCHOR LstIoReqAlloc;
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261 | } VDLSTIOREQALLOC;
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262 | typedef VDLSTIOREQALLOC *PVDLSTIOREQALLOC;
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263 |
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264 | /** Number of bins for allocated requests. */
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265 | #define DRVVD_VDIOREQ_ALLOC_BINS 8
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266 |
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267 | /**
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268 | * VD config node.
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269 | */
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270 | typedef struct VDCFGNODE
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271 | {
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272 | /** List node for the list of config nodes. */
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273 | RTLISTNODE NdLst;
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274 | /** Pointer to the driver helper callbacks. */
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275 | PCPDMDRVHLPR3 pHlp;
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276 | /** The config node. */
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277 | PCFGMNODE pCfgNode;
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278 | } VDCFGNODE;
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279 | /** Pointer to a VD config node. */
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280 | typedef VDCFGNODE *PVDCFGNODE;
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281 |
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282 | /**
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283 | * VBox disk container media main structure, private part.
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284 | *
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285 | * @implements PDMIMEDIA
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286 | * @implements PDMIMEDIAEX
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287 | * @implements PDMIMOUNT
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288 | * @implements VDINTERFACEERROR
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289 | * @implements VDINTERFACETCPNET
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290 | * @implements VDINTERFACEASYNCIO
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291 | * @implements VDINTERFACECONFIG
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292 | */
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293 | typedef struct VBOXDISK
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294 | {
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295 | /** The VBox disk container. */
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296 | PVDISK pDisk;
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297 | /** The media interface. */
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298 | PDMIMEDIA IMedia;
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299 | /** Media port. */
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300 | PPDMIMEDIAPORT pDrvMediaPort;
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301 | /** Pointer to the driver instance. */
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302 | PPDMDRVINS pDrvIns;
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303 | /** Flag whether suspend has changed image open mode to read only. */
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304 | bool fTempReadOnly;
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305 | /** Flag whether to use the runtime (true) or startup error facility. */
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306 | bool fErrorUseRuntime;
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307 | /** Pointer to list of VD interfaces. Per-disk. */
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308 | PVDINTERFACE pVDIfsDisk;
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309 | /** Error interface. */
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310 | VDINTERFACEERROR VDIfError;
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311 | /** Thread synchronization interface. */
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312 | VDINTERFACETHREADSYNC VDIfThreadSync;
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313 |
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314 | /** Flag whether opened disk supports async I/O operations. */
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315 | bool fAsyncIOSupported;
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316 | /** Pointer to the list of data we need to keep per image. */
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317 | PVBOXIMAGE pImages;
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318 | /** Flag whether the media should allow concurrent open for writing. */
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319 | bool fShareable;
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320 | /** Flag whether a merge operation has been set up. */
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321 | bool fMergePending;
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322 | /** Synchronization to prevent destruction before merge finishes. */
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323 | RTSEMFASTMUTEX MergeCompleteMutex;
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324 | /** Synchronization between merge and other image accesses. */
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325 | RTSEMRW MergeLock;
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326 | /** Source image index for merging. */
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327 | unsigned uMergeSource;
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328 | /** Target image index for merging. */
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329 | unsigned uMergeTarget;
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330 |
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331 | /** Flag whether boot acceleration is enabled. */
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332 | bool fBootAccelEnabled;
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333 | /** Flag whether boot acceleration is currently active. */
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334 | bool fBootAccelActive;
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335 | /** Size of the disk, used for read truncation. */
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336 | uint64_t cbDisk;
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337 | /** Size of the configured buffer. */
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338 | size_t cbBootAccelBuffer;
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339 | /** Start offset for which the buffer holds data. */
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340 | uint64_t offDisk;
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341 | /** Number of valid bytes in the buffer. */
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342 | size_t cbDataValid;
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343 | /** The disk buffer. */
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344 | uint8_t *pbData;
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345 | /** Bandwidth group the disk is assigned to. */
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346 | char *pszBwGroup;
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347 | /** Flag whether async I/O using the host cache is enabled. */
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348 | bool fAsyncIoWithHostCache;
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349 |
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350 | /** I/O interface for a cache image. */
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351 | VDINTERFACEIO VDIfIoCache;
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352 | /** Interface list for the cache image. */
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353 | PVDINTERFACE pVDIfsCache;
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354 |
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355 | /** The block cache handle if configured. */
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356 | PPDMBLKCACHE pBlkCache;
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357 | /** Host block device manager. */
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358 | HBDMGR hHbdMgr;
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359 |
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360 | /** Drive type. */
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361 | PDMMEDIATYPE enmType;
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362 | /** Locked indicator. */
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363 | bool fLocked;
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364 | /** Mountable indicator. */
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365 | bool fMountable;
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366 | /** Visible to the BIOS. */
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367 | bool fBiosVisible;
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368 | /** Flag whether this medium should be presented as non rotational. */
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369 | bool fNonRotational;
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370 | /** Flag whether a suspend is in progress right now. */
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371 | volatile bool fSuspending;
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372 | #ifdef VBOX_PERIODIC_FLUSH
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373 | /** HACK: Configuration value for number of bytes written after which to flush. */
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374 | uint32_t cbFlushInterval;
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375 | /** HACK: Current count for the number of bytes written since the last flush. */
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376 | uint32_t cbDataWritten;
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377 | #endif /* VBOX_PERIODIC_FLUSH */
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378 | #ifdef VBOX_IGNORE_FLUSH
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379 | /** HACK: Disable flushes for this drive. */
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380 | bool fIgnoreFlush;
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381 | /** Disable async flushes for this drive. */
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382 | bool fIgnoreFlushAsync;
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383 | #endif /* VBOX_IGNORE_FLUSH */
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384 | /** Our mountable interface. */
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385 | PDMIMOUNT IMount;
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386 | /** Pointer to the mount notify interface above us. */
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387 | PPDMIMOUNTNOTIFY pDrvMountNotify;
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388 | /** Uuid of the drive. */
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389 | RTUUID Uuid;
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390 | /** BIOS PCHS Geometry. */
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391 | PDMMEDIAGEOMETRY PCHSGeometry;
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392 | /** BIOS LCHS Geometry. */
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393 | PDMMEDIAGEOMETRY LCHSGeometry;
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394 | /** Region list. */
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395 | PVDREGIONLIST pRegionList;
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396 |
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397 | /** VD config support.
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398 | * @{ */
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399 | /** List head of config nodes. */
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400 | RTLISTANCHOR LstCfgNodes;
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401 | /** @} */
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402 |
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403 | /** Cryptographic support
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404 | * @{ */
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405 | /** Pointer to the CFGM node containing the config of the crypto filter
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406 | * if enable. */
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407 | VDCFGNODE CfgCrypto;
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408 | /** Config interface for the encryption filter. */
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409 | VDINTERFACECONFIG VDIfCfg;
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410 | /** Crypto interface for the encryption filter. */
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411 | VDINTERFACECRYPTO VDIfCrypto;
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412 | /** The secret key interface used to retrieve keys. */
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413 | PPDMISECKEY pIfSecKey;
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414 | /** The secret key helper interface used to notify about missing keys. */
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415 | PPDMISECKEYHLP pIfSecKeyHlp;
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416 | /** @} */
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417 |
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418 | /** @name IMEDIAEX interface support specific members.
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419 | * @{ */
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420 | /** Pointer to the IMEDIAEXPORT interface above us. */
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421 | PPDMIMEDIAEXPORT pDrvMediaExPort;
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422 | /** Our extended media interface. */
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423 | PDMIMEDIAEX IMediaEx;
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424 | /** Memory cache for the I/O requests. */
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425 | RTMEMCACHE hIoReqCache;
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426 | /** I/O buffer manager. */
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427 | IOBUFMGR hIoBufMgr;
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428 | /** Active request counter. */
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429 | volatile uint32_t cIoReqsActive;
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430 | /** Bins for allocated requests. */
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431 | VDLSTIOREQALLOC aIoReqAllocBins[DRVVD_VDIOREQ_ALLOC_BINS];
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432 | /** List of requests for I/O memory to be available - VDIOREQ::NdLstWait. */
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433 | RTLISTANCHOR LstIoReqIoBufWait;
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434 | /** Critical section protecting the list of requests waiting for I/O memory. */
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435 | RTCRITSECT CritSectIoReqsIoBufWait;
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436 | /** Number of requests waiting for a I/O buffer. */
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437 | volatile uint32_t cIoReqsWaiting;
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---|
438 | /** Flag whether we have to resubmit requests on resume because the
|
---|
439 | * VM was suspended due to a recoverable I/O error.
|
---|
440 | */
|
---|
441 | volatile bool fRedo;
|
---|
442 | /** List of requests we have to redo. */
|
---|
443 | RTLISTANCHOR LstIoReqRedo;
|
---|
444 | /** Criticial section protecting the list of waiting requests. */
|
---|
445 | RTCRITSECT CritSectIoReqRedo;
|
---|
446 | /** Number of errors logged so far. */
|
---|
447 | unsigned cErrors;
|
---|
448 | /** @} */
|
---|
449 |
|
---|
450 | /** @name Statistics.
|
---|
451 | * @{ */
|
---|
452 | /** How many attempts were made to query a direct buffer pointer from the
|
---|
453 | * device/driver above. */
|
---|
454 | STAMCOUNTER StatQueryBufAttempts;
|
---|
455 | /** How many attempts to query a direct buffer pointer succeeded. */
|
---|
456 | STAMCOUNTER StatQueryBufSuccess;
|
---|
457 | /** Release statistics: number of bytes written. */
|
---|
458 | STAMCOUNTER StatBytesWritten;
|
---|
459 | /** Release statistics: number of bytes read. */
|
---|
460 | STAMCOUNTER StatBytesRead;
|
---|
461 | /** Release statistics: Number of requests submitted. */
|
---|
462 | STAMCOUNTER StatReqsSubmitted;
|
---|
463 | /** Release statistics: Number of requests failed. */
|
---|
464 | STAMCOUNTER StatReqsFailed;
|
---|
465 | /** Release statistics: Number of requests succeeded. */
|
---|
466 | STAMCOUNTER StatReqsSucceeded;
|
---|
467 | /** Release statistics: Number of flush requests. */
|
---|
468 | STAMCOUNTER StatReqsFlush;
|
---|
469 | /** Release statistics: Number of write requests. */
|
---|
470 | STAMCOUNTER StatReqsWrite;
|
---|
471 | /** Release statistics: Number of read requests. */
|
---|
472 | STAMCOUNTER StatReqsRead;
|
---|
473 | /** Release statistics: Number of discard requests. */
|
---|
474 | STAMCOUNTER StatReqsDiscard;
|
---|
475 | /** Release statistics: Number of I/O requests processed per second. */
|
---|
476 | STAMCOUNTER StatReqsPerSec;
|
---|
477 | /** @} */
|
---|
478 | } VBOXDISK;
|
---|
479 |
|
---|
480 |
|
---|
481 | /*********************************************************************************************************************************
|
---|
482 | * Internal Functions *
|
---|
483 | *********************************************************************************************************************************/
|
---|
484 |
|
---|
485 | static DECLCALLBACK(void) drvvdMediaExIoReqComplete(void *pvUser1, void *pvUser2, int rcReq);
|
---|
486 | static void drvvdPowerOffOrDestructOrUnmount(PPDMDRVINS pDrvIns);
|
---|
487 | DECLINLINE(void) drvvdMediaExIoReqBufFree(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq);
|
---|
488 | static int drvvdMediaExIoReqCompleteWorker(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, int rcReq, bool fUpNotify);
|
---|
489 | static int drvvdMediaExIoReqReadWriteProcess(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, bool fUpNotify);
|
---|
490 |
|
---|
491 | /**
|
---|
492 | * Internal: allocate new image descriptor and put it in the list
|
---|
493 | */
|
---|
494 | static PVBOXIMAGE drvvdNewImage(PVBOXDISK pThis)
|
---|
495 | {
|
---|
496 | AssertPtr(pThis);
|
---|
497 | PVBOXIMAGE pImage = (PVBOXIMAGE)RTMemAllocZ(sizeof(VBOXIMAGE));
|
---|
498 | if (pImage)
|
---|
499 | {
|
---|
500 | pImage->pVDIfsImage = NULL;
|
---|
501 | PVBOXIMAGE *pp = &pThis->pImages;
|
---|
502 | while (*pp != NULL)
|
---|
503 | pp = &(*pp)->pNext;
|
---|
504 | *pp = pImage;
|
---|
505 | pImage->pNext = NULL;
|
---|
506 | }
|
---|
507 |
|
---|
508 | return pImage;
|
---|
509 | }
|
---|
510 |
|
---|
511 | /**
|
---|
512 | * Internal: free the list of images descriptors.
|
---|
513 | */
|
---|
514 | static void drvvdFreeImages(PVBOXDISK pThis)
|
---|
515 | {
|
---|
516 | while (pThis->pImages != NULL)
|
---|
517 | {
|
---|
518 | PVBOXIMAGE p = pThis->pImages;
|
---|
519 | pThis->pImages = pThis->pImages->pNext;
|
---|
520 | if (p->hVdIfTcpNet != NULL)
|
---|
521 | VDIfTcpNetInstDefaultDestroy(p->hVdIfTcpNet);
|
---|
522 | RTMemFree(p);
|
---|
523 | }
|
---|
524 | }
|
---|
525 |
|
---|
526 |
|
---|
527 | /**
|
---|
528 | * Make the image temporarily read-only.
|
---|
529 | *
|
---|
530 | * @returns VBox status code.
|
---|
531 | * @param pThis The driver instance data.
|
---|
532 | */
|
---|
533 | static int drvvdSetReadonly(PVBOXDISK pThis)
|
---|
534 | {
|
---|
535 | int rc = VINF_SUCCESS;
|
---|
536 | if ( pThis->pDisk
|
---|
537 | && !VDIsReadOnly(pThis->pDisk))
|
---|
538 | {
|
---|
539 | unsigned uOpenFlags;
|
---|
540 | rc = VDGetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, &uOpenFlags);
|
---|
541 | AssertRC(rc);
|
---|
542 | uOpenFlags |= VD_OPEN_FLAGS_READONLY;
|
---|
543 | rc = VDSetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, uOpenFlags);
|
---|
544 | AssertRC(rc);
|
---|
545 | pThis->fTempReadOnly = true;
|
---|
546 | }
|
---|
547 | return rc;
|
---|
548 | }
|
---|
549 |
|
---|
550 |
|
---|
551 | /**
|
---|
552 | * Undo the temporary read-only status of the image.
|
---|
553 | *
|
---|
554 | * @returns VBox status code.
|
---|
555 | * @param pThis The driver instance data.
|
---|
556 | */
|
---|
557 | static int drvvdSetWritable(PVBOXDISK pThis)
|
---|
558 | {
|
---|
559 | int rc = VINF_SUCCESS;
|
---|
560 | if (pThis->fTempReadOnly)
|
---|
561 | {
|
---|
562 | unsigned uOpenFlags;
|
---|
563 | rc = VDGetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, &uOpenFlags);
|
---|
564 | AssertRC(rc);
|
---|
565 | uOpenFlags &= ~VD_OPEN_FLAGS_READONLY;
|
---|
566 | rc = VDSetOpenFlags(pThis->pDisk, VD_LAST_IMAGE, uOpenFlags);
|
---|
567 | if (RT_SUCCESS(rc))
|
---|
568 | pThis->fTempReadOnly = false;
|
---|
569 | else
|
---|
570 | AssertRC(rc);
|
---|
571 | }
|
---|
572 | return rc;
|
---|
573 | }
|
---|
574 |
|
---|
575 |
|
---|
576 | /*********************************************************************************************************************************
|
---|
577 | * Error reporting callback *
|
---|
578 | *********************************************************************************************************************************/
|
---|
579 |
|
---|
580 | static DECLCALLBACK(void) drvvdErrorCallback(void *pvUser, int rc, RT_SRC_POS_DECL,
|
---|
581 | const char *pszFormat, va_list va)
|
---|
582 | {
|
---|
583 | PPDMDRVINS pDrvIns = (PPDMDRVINS)pvUser;
|
---|
584 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
585 | if (pThis->fErrorUseRuntime)
|
---|
586 | /* We must not pass VMSETRTERR_FLAGS_FATAL as it could lead to a
|
---|
587 | * deadlock: We are probably executed in a thread context != EMT
|
---|
588 | * and the EM thread would wait until every thread is suspended
|
---|
589 | * but we would wait for the EM thread ... */
|
---|
590 |
|
---|
591 | PDMDrvHlpVMSetRuntimeErrorV(pDrvIns, /* fFlags=*/ 0, "DrvVD", pszFormat, va);
|
---|
592 | else
|
---|
593 | PDMDrvHlpVMSetErrorV(pDrvIns, rc, RT_SRC_POS_ARGS, pszFormat, va);
|
---|
594 | }
|
---|
595 |
|
---|
596 |
|
---|
597 | /*********************************************************************************************************************************
|
---|
598 | * VD Async I/O interface implementation *
|
---|
599 | *********************************************************************************************************************************/
|
---|
600 |
|
---|
601 | #ifdef VBOX_WITH_PDM_ASYNC_COMPLETION
|
---|
602 |
|
---|
603 | static DECLCALLBACK(void) drvvdAsyncTaskCompleted(PPDMDRVINS pDrvIns, void *pvTemplateUser, void *pvUser, int rcReq)
|
---|
604 | {
|
---|
605 | RT_NOREF(pDrvIns);
|
---|
606 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pvTemplateUser;
|
---|
607 |
|
---|
608 | LogFlowFunc(("pDrvIns=%#p pvTemplateUser=%#p pvUser=%#p rcReq=%d\n",
|
---|
609 | pDrvIns, pvTemplateUser, pvUser, rcReq));
|
---|
610 |
|
---|
611 | if (pStorageBackend->fSyncIoPending)
|
---|
612 | {
|
---|
613 | Assert(!pvUser);
|
---|
614 | pStorageBackend->rcReqLast = rcReq;
|
---|
615 | ASMAtomicWriteBool(&pStorageBackend->fSyncIoPending, false);
|
---|
616 | RTSemEventSignal(pStorageBackend->EventSem);
|
---|
617 | }
|
---|
618 | else
|
---|
619 | {
|
---|
620 | int rc;
|
---|
621 |
|
---|
622 | AssertPtr(pvUser);
|
---|
623 |
|
---|
624 | AssertPtr(pStorageBackend->pfnCompleted);
|
---|
625 | rc = pStorageBackend->pfnCompleted(pvUser, rcReq);
|
---|
626 | AssertRC(rc);
|
---|
627 | }
|
---|
628 | }
|
---|
629 |
|
---|
630 | static DECLCALLBACK(int) drvvdAsyncIOOpen(void *pvUser, const char *pszLocation,
|
---|
631 | uint32_t fOpen,
|
---|
632 | PFNVDCOMPLETED pfnCompleted,
|
---|
633 | void **ppStorage)
|
---|
634 | {
|
---|
635 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
636 | PDRVVDSTORAGEBACKEND pStorageBackend = NULL;
|
---|
637 | int rc = VINF_SUCCESS;
|
---|
638 |
|
---|
639 | /*
|
---|
640 | * Check whether the backend wants to open a block device and try to prepare it
|
---|
641 | * if we didn't claim it yet.
|
---|
642 | *
|
---|
643 | * We only create a block device manager on demand to not waste any resources.
|
---|
644 | */
|
---|
645 | if (HBDMgrIsBlockDevice(pszLocation))
|
---|
646 | {
|
---|
647 | if (pThis->hHbdMgr == NIL_HBDMGR)
|
---|
648 | rc = HBDMgrCreate(&pThis->hHbdMgr);
|
---|
649 |
|
---|
650 | if ( RT_SUCCESS(rc)
|
---|
651 | && !HBDMgrIsBlockDeviceClaimed(pThis->hHbdMgr, pszLocation))
|
---|
652 | rc = HBDMgrClaimBlockDevice(pThis->hHbdMgr, pszLocation);
|
---|
653 |
|
---|
654 | if (RT_FAILURE(rc))
|
---|
655 | return rc;
|
---|
656 | }
|
---|
657 |
|
---|
658 | pStorageBackend = (PDRVVDSTORAGEBACKEND)RTMemAllocZ(sizeof(DRVVDSTORAGEBACKEND));
|
---|
659 | if (pStorageBackend)
|
---|
660 | {
|
---|
661 | pStorageBackend->pVD = pThis;
|
---|
662 | pStorageBackend->fSyncIoPending = false;
|
---|
663 | pStorageBackend->rcReqLast = VINF_SUCCESS;
|
---|
664 | pStorageBackend->pfnCompleted = pfnCompleted;
|
---|
665 |
|
---|
666 | rc = RTSemEventCreate(&pStorageBackend->EventSem);
|
---|
667 | if (RT_SUCCESS(rc))
|
---|
668 | {
|
---|
669 | rc = PDMDrvHlpAsyncCompletionTemplateCreate(pThis->pDrvIns, &pStorageBackend->pTemplate,
|
---|
670 | drvvdAsyncTaskCompleted, pStorageBackend, "AsyncTaskCompleted");
|
---|
671 | if (RT_SUCCESS(rc))
|
---|
672 | {
|
---|
673 | uint32_t fFlags = (fOpen & RTFILE_O_ACCESS_MASK) == RTFILE_O_READ
|
---|
674 | ? PDMACEP_FILE_FLAGS_READ_ONLY
|
---|
675 | : 0;
|
---|
676 | if (pThis->fShareable)
|
---|
677 | {
|
---|
678 | Assert((fOpen & RTFILE_O_DENY_MASK) == RTFILE_O_DENY_NONE);
|
---|
679 |
|
---|
680 | fFlags |= PDMACEP_FILE_FLAGS_DONT_LOCK;
|
---|
681 | }
|
---|
682 | if (pThis->fAsyncIoWithHostCache)
|
---|
683 | fFlags |= PDMACEP_FILE_FLAGS_HOST_CACHE_ENABLED;
|
---|
684 |
|
---|
685 | rc = PDMDrvHlpAsyncCompletionEpCreateForFile(pThis->pDrvIns,
|
---|
686 | &pStorageBackend->pEndpoint,
|
---|
687 | pszLocation, fFlags,
|
---|
688 | pStorageBackend->pTemplate);
|
---|
689 |
|
---|
690 | if (RT_SUCCESS(rc))
|
---|
691 | {
|
---|
692 | if (pThis->pszBwGroup)
|
---|
693 | rc = PDMDrvHlpAsyncCompletionEpSetBwMgr(pThis->pDrvIns, pStorageBackend->pEndpoint, pThis->pszBwGroup);
|
---|
694 |
|
---|
695 | if (RT_SUCCESS(rc))
|
---|
696 | {
|
---|
697 | LogFlow(("drvvdAsyncIOOpen: Successfully opened '%s'; fOpen=%#x pStorage=%p\n",
|
---|
698 | pszLocation, fOpen, pStorageBackend));
|
---|
699 | *ppStorage = pStorageBackend;
|
---|
700 | return VINF_SUCCESS;
|
---|
701 | }
|
---|
702 |
|
---|
703 | PDMDrvHlpAsyncCompletionEpClose(pThis->pDrvIns, pStorageBackend->pEndpoint);
|
---|
704 | }
|
---|
705 |
|
---|
706 | PDMDrvHlpAsyncCompletionTemplateDestroy(pThis->pDrvIns, pStorageBackend->pTemplate);
|
---|
707 | }
|
---|
708 | RTSemEventDestroy(pStorageBackend->EventSem);
|
---|
709 | }
|
---|
710 | RTMemFree(pStorageBackend);
|
---|
711 | }
|
---|
712 | else
|
---|
713 | rc = VERR_NO_MEMORY;
|
---|
714 |
|
---|
715 | return rc;
|
---|
716 | }
|
---|
717 |
|
---|
718 | static DECLCALLBACK(int) drvvdAsyncIOClose(void *pvUser, void *pStorage)
|
---|
719 | {
|
---|
720 | RT_NOREF(pvUser);
|
---|
721 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
722 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
723 |
|
---|
724 | /*
|
---|
725 | * We don't unclaim any block devices on purpose here because they
|
---|
726 | * might get reopened shortly (switching to readonly during suspend)
|
---|
727 | *
|
---|
728 | * Block devices will get unclaimed during destruction of the driver.
|
---|
729 | */
|
---|
730 |
|
---|
731 | PDMDrvHlpAsyncCompletionEpClose(pThis->pDrvIns, pStorageBackend->pEndpoint);
|
---|
732 | PDMDrvHlpAsyncCompletionTemplateDestroy(pThis->pDrvIns, pStorageBackend->pTemplate);
|
---|
733 | RTSemEventDestroy(pStorageBackend->EventSem);
|
---|
734 | RTMemFree(pStorageBackend);
|
---|
735 | return VINF_SUCCESS;;
|
---|
736 | }
|
---|
737 |
|
---|
738 | static DECLCALLBACK(int) drvvdAsyncIOReadSync(void *pvUser, void *pStorage, uint64_t uOffset,
|
---|
739 | void *pvBuf, size_t cbRead, size_t *pcbRead)
|
---|
740 | {
|
---|
741 | RT_NOREF(pvUser);
|
---|
742 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
743 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
744 | RTSGSEG DataSeg;
|
---|
745 | PPDMASYNCCOMPLETIONTASK pTask;
|
---|
746 |
|
---|
747 | bool fOld = ASMAtomicXchgBool(&pStorageBackend->fSyncIoPending, true);
|
---|
748 | Assert(!fOld); NOREF(fOld);
|
---|
749 | DataSeg.cbSeg = cbRead;
|
---|
750 | DataSeg.pvSeg = pvBuf;
|
---|
751 |
|
---|
752 | int rc = PDMDrvHlpAsyncCompletionEpRead(pThis->pDrvIns, pStorageBackend->pEndpoint, uOffset, &DataSeg, 1, cbRead, NULL, &pTask);
|
---|
753 | if (RT_FAILURE(rc))
|
---|
754 | return rc;
|
---|
755 |
|
---|
756 | if (rc == VINF_AIO_TASK_PENDING)
|
---|
757 | {
|
---|
758 | /* Wait */
|
---|
759 | rc = RTSemEventWait(pStorageBackend->EventSem, RT_INDEFINITE_WAIT);
|
---|
760 | AssertRC(rc);
|
---|
761 | }
|
---|
762 | else
|
---|
763 | ASMAtomicXchgBool(&pStorageBackend->fSyncIoPending, false);
|
---|
764 |
|
---|
765 | if (pcbRead)
|
---|
766 | *pcbRead = cbRead;
|
---|
767 |
|
---|
768 | return pStorageBackend->rcReqLast;
|
---|
769 | }
|
---|
770 |
|
---|
771 | static DECLCALLBACK(int) drvvdAsyncIOWriteSync(void *pvUser, void *pStorage, uint64_t uOffset,
|
---|
772 | const void *pvBuf, size_t cbWrite, size_t *pcbWritten)
|
---|
773 | {
|
---|
774 | RT_NOREF(pvUser);
|
---|
775 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
776 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
777 | RTSGSEG DataSeg;
|
---|
778 | PPDMASYNCCOMPLETIONTASK pTask;
|
---|
779 |
|
---|
780 | bool fOld = ASMAtomicXchgBool(&pStorageBackend->fSyncIoPending, true);
|
---|
781 | Assert(!fOld); NOREF(fOld);
|
---|
782 | DataSeg.cbSeg = cbWrite;
|
---|
783 | DataSeg.pvSeg = (void *)pvBuf;
|
---|
784 |
|
---|
785 | int rc = PDMDrvHlpAsyncCompletionEpWrite(pThis->pDrvIns, pStorageBackend->pEndpoint, uOffset, &DataSeg, 1, cbWrite, NULL, &pTask);
|
---|
786 | if (RT_FAILURE(rc))
|
---|
787 | return rc;
|
---|
788 |
|
---|
789 | if (rc == VINF_AIO_TASK_PENDING)
|
---|
790 | {
|
---|
791 | /* Wait */
|
---|
792 | rc = RTSemEventWait(pStorageBackend->EventSem, RT_INDEFINITE_WAIT);
|
---|
793 | AssertRC(rc);
|
---|
794 | }
|
---|
795 | else
|
---|
796 | ASMAtomicXchgBool(&pStorageBackend->fSyncIoPending, false);
|
---|
797 |
|
---|
798 | if (pcbWritten)
|
---|
799 | *pcbWritten = cbWrite;
|
---|
800 |
|
---|
801 | return pStorageBackend->rcReqLast;
|
---|
802 | }
|
---|
803 |
|
---|
804 | static DECLCALLBACK(int) drvvdAsyncIOFlushSync(void *pvUser, void *pStorage)
|
---|
805 | {
|
---|
806 | RT_NOREF(pvUser);
|
---|
807 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
808 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
809 | PPDMASYNCCOMPLETIONTASK pTask;
|
---|
810 |
|
---|
811 | LogFlowFunc(("pvUser=%#p pStorage=%#p\n", pvUser, pStorage));
|
---|
812 |
|
---|
813 | bool fOld = ASMAtomicXchgBool(&pStorageBackend->fSyncIoPending, true);
|
---|
814 | Assert(!fOld); NOREF(fOld);
|
---|
815 |
|
---|
816 | int rc = PDMDrvHlpAsyncCompletionEpFlush(pThis->pDrvIns, pStorageBackend->pEndpoint, NULL, &pTask);
|
---|
817 | if (RT_FAILURE(rc))
|
---|
818 | return rc;
|
---|
819 |
|
---|
820 | if (rc == VINF_AIO_TASK_PENDING)
|
---|
821 | {
|
---|
822 | /* Wait */
|
---|
823 | LogFlowFunc(("Waiting for flush to complete\n"));
|
---|
824 | rc = RTSemEventWait(pStorageBackend->EventSem, RT_INDEFINITE_WAIT);
|
---|
825 | AssertRC(rc);
|
---|
826 | }
|
---|
827 | else
|
---|
828 | ASMAtomicXchgBool(&pStorageBackend->fSyncIoPending, false);
|
---|
829 |
|
---|
830 | return pStorageBackend->rcReqLast;
|
---|
831 | }
|
---|
832 |
|
---|
833 | static DECLCALLBACK(int) drvvdAsyncIOReadAsync(void *pvUser, void *pStorage, uint64_t uOffset,
|
---|
834 | PCRTSGSEG paSegments, size_t cSegments,
|
---|
835 | size_t cbRead, void *pvCompletion,
|
---|
836 | void **ppTask)
|
---|
837 | {
|
---|
838 | RT_NOREF(pvUser);
|
---|
839 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
840 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
841 |
|
---|
842 | int rc = PDMDrvHlpAsyncCompletionEpRead(pThis->pDrvIns, pStorageBackend->pEndpoint,
|
---|
843 | uOffset, paSegments, (unsigned)cSegments, cbRead,
|
---|
844 | pvCompletion, (PPPDMASYNCCOMPLETIONTASK)ppTask);
|
---|
845 | if (rc == VINF_AIO_TASK_PENDING)
|
---|
846 | rc = VERR_VD_ASYNC_IO_IN_PROGRESS;
|
---|
847 |
|
---|
848 | return rc;
|
---|
849 | }
|
---|
850 |
|
---|
851 | static DECLCALLBACK(int) drvvdAsyncIOWriteAsync(void *pvUser, void *pStorage, uint64_t uOffset,
|
---|
852 | PCRTSGSEG paSegments, size_t cSegments,
|
---|
853 | size_t cbWrite, void *pvCompletion,
|
---|
854 | void **ppTask)
|
---|
855 | {
|
---|
856 | RT_NOREF(pvUser);
|
---|
857 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
858 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
859 |
|
---|
860 | int rc = PDMDrvHlpAsyncCompletionEpWrite(pThis->pDrvIns, pStorageBackend->pEndpoint,
|
---|
861 | uOffset, paSegments, (unsigned)cSegments, cbWrite,
|
---|
862 | pvCompletion, (PPPDMASYNCCOMPLETIONTASK)ppTask);
|
---|
863 | if (rc == VINF_AIO_TASK_PENDING)
|
---|
864 | rc = VERR_VD_ASYNC_IO_IN_PROGRESS;
|
---|
865 |
|
---|
866 | return rc;
|
---|
867 | }
|
---|
868 |
|
---|
869 | static DECLCALLBACK(int) drvvdAsyncIOFlushAsync(void *pvUser, void *pStorage,
|
---|
870 | void *pvCompletion, void **ppTask)
|
---|
871 | {
|
---|
872 | RT_NOREF(pvUser);
|
---|
873 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
874 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
875 |
|
---|
876 | int rc = PDMDrvHlpAsyncCompletionEpFlush(pThis->pDrvIns, pStorageBackend->pEndpoint, pvCompletion,
|
---|
877 | (PPPDMASYNCCOMPLETIONTASK)ppTask);
|
---|
878 | if (rc == VINF_AIO_TASK_PENDING)
|
---|
879 | rc = VERR_VD_ASYNC_IO_IN_PROGRESS;
|
---|
880 |
|
---|
881 | return rc;
|
---|
882 | }
|
---|
883 |
|
---|
884 | static DECLCALLBACK(int) drvvdAsyncIOGetSize(void *pvUser, void *pStorage, uint64_t *pcbSize)
|
---|
885 | {
|
---|
886 | RT_NOREF(pvUser);
|
---|
887 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
888 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
889 |
|
---|
890 | return PDMDrvHlpAsyncCompletionEpGetSize(pThis->pDrvIns, pStorageBackend->pEndpoint, pcbSize);
|
---|
891 | }
|
---|
892 |
|
---|
893 | static DECLCALLBACK(int) drvvdAsyncIOSetSize(void *pvUser, void *pStorage, uint64_t cbSize)
|
---|
894 | {
|
---|
895 | RT_NOREF(pvUser);
|
---|
896 | PDRVVDSTORAGEBACKEND pStorageBackend = (PDRVVDSTORAGEBACKEND)pStorage;
|
---|
897 | PVBOXDISK pThis = pStorageBackend->pVD;
|
---|
898 |
|
---|
899 | return PDMDrvHlpAsyncCompletionEpSetSize(pThis->pDrvIns, pStorageBackend->pEndpoint, cbSize);
|
---|
900 | }
|
---|
901 |
|
---|
902 | static DECLCALLBACK(int) drvvdAsyncIOSetAllocationSize(void *pvUser, void *pvStorage, uint64_t cbSize, uint32_t fFlags)
|
---|
903 | {
|
---|
904 | RT_NOREF(pvUser, pvStorage, cbSize, fFlags);
|
---|
905 | return VERR_NOT_SUPPORTED;
|
---|
906 | }
|
---|
907 |
|
---|
908 | #endif /* VBOX_WITH_PDM_ASYNC_COMPLETION */
|
---|
909 |
|
---|
910 |
|
---|
911 | /*********************************************************************************************************************************
|
---|
912 | * VD Thread Synchronization interface implementation *
|
---|
913 | *********************************************************************************************************************************/
|
---|
914 |
|
---|
915 | static DECLCALLBACK(int) drvvdThreadStartRead(void *pvUser)
|
---|
916 | {
|
---|
917 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
918 |
|
---|
919 | return RTSemRWRequestRead(pThis->MergeLock, RT_INDEFINITE_WAIT);
|
---|
920 | }
|
---|
921 |
|
---|
922 | static DECLCALLBACK(int) drvvdThreadFinishRead(void *pvUser)
|
---|
923 | {
|
---|
924 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
925 |
|
---|
926 | return RTSemRWReleaseRead(pThis->MergeLock);
|
---|
927 | }
|
---|
928 |
|
---|
929 | static DECLCALLBACK(int) drvvdThreadStartWrite(void *pvUser)
|
---|
930 | {
|
---|
931 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
932 |
|
---|
933 | return RTSemRWRequestWrite(pThis->MergeLock, RT_INDEFINITE_WAIT);
|
---|
934 | }
|
---|
935 |
|
---|
936 | static DECLCALLBACK(int) drvvdThreadFinishWrite(void *pvUser)
|
---|
937 | {
|
---|
938 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
939 |
|
---|
940 | return RTSemRWReleaseWrite(pThis->MergeLock);
|
---|
941 | }
|
---|
942 |
|
---|
943 |
|
---|
944 | /*********************************************************************************************************************************
|
---|
945 | * VD Configuration interface implementation *
|
---|
946 | *********************************************************************************************************************************/
|
---|
947 |
|
---|
948 | static DECLCALLBACK(bool) drvvdCfgAreKeysValid(void *pvUser, const char *pszzValid)
|
---|
949 | {
|
---|
950 | PVDCFGNODE pVdCfgNode = (PVDCFGNODE)pvUser;
|
---|
951 | PCPDMDRVHLPR3 pHlp = pVdCfgNode->pHlp;
|
---|
952 | return pHlp->pfnCFGMAreValuesValid(pVdCfgNode->pCfgNode, pszzValid);
|
---|
953 | }
|
---|
954 |
|
---|
955 | static DECLCALLBACK(int) drvvdCfgQuerySize(void *pvUser, const char *pszName, size_t *pcb)
|
---|
956 | {
|
---|
957 | PVDCFGNODE pVdCfgNode = (PVDCFGNODE)pvUser;
|
---|
958 | PCPDMDRVHLPR3 pHlp = pVdCfgNode->pHlp;
|
---|
959 | return pHlp->pfnCFGMQuerySize(pVdCfgNode->pCfgNode, pszName, pcb);
|
---|
960 | }
|
---|
961 |
|
---|
962 | static DECLCALLBACK(int) drvvdCfgQuery(void *pvUser, const char *pszName, char *pszString, size_t cchString)
|
---|
963 | {
|
---|
964 | PVDCFGNODE pVdCfgNode = (PVDCFGNODE)pvUser;
|
---|
965 | PCPDMDRVHLPR3 pHlp = pVdCfgNode->pHlp;
|
---|
966 | return pHlp->pfnCFGMQueryString(pVdCfgNode->pCfgNode, pszName, pszString, cchString);
|
---|
967 | }
|
---|
968 |
|
---|
969 | static DECLCALLBACK(int) drvvdCfgQueryBytes(void *pvUser, const char *pszName, void *ppvData, size_t cbData)
|
---|
970 | {
|
---|
971 | PVDCFGNODE pVdCfgNode = (PVDCFGNODE)pvUser;
|
---|
972 | PCPDMDRVHLPR3 pHlp = pVdCfgNode->pHlp;
|
---|
973 | return pHlp->pfnCFGMQueryBytes(pVdCfgNode->pCfgNode, pszName, ppvData, cbData);
|
---|
974 | }
|
---|
975 |
|
---|
976 |
|
---|
977 | /*******************************************************************************
|
---|
978 | * VD Crypto interface implementation for the encryption support *
|
---|
979 | *******************************************************************************/
|
---|
980 |
|
---|
981 | static DECLCALLBACK(int) drvvdCryptoKeyRetain(void *pvUser, const char *pszId, const uint8_t **ppbKey, size_t *pcbKey)
|
---|
982 | {
|
---|
983 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
984 | int rc = VINF_SUCCESS;
|
---|
985 |
|
---|
986 | AssertPtr(pThis->pIfSecKey);
|
---|
987 | if (pThis->pIfSecKey)
|
---|
988 | rc = pThis->pIfSecKey->pfnKeyRetain(pThis->pIfSecKey, pszId, ppbKey, pcbKey);
|
---|
989 | else
|
---|
990 | rc = VERR_NOT_SUPPORTED;
|
---|
991 |
|
---|
992 | return rc;
|
---|
993 | }
|
---|
994 |
|
---|
995 | static DECLCALLBACK(int) drvvdCryptoKeyRelease(void *pvUser, const char *pszId)
|
---|
996 | {
|
---|
997 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
998 | int rc = VINF_SUCCESS;
|
---|
999 |
|
---|
1000 | AssertPtr(pThis->pIfSecKey);
|
---|
1001 | if (pThis->pIfSecKey)
|
---|
1002 | rc = pThis->pIfSecKey->pfnKeyRelease(pThis->pIfSecKey, pszId);
|
---|
1003 | else
|
---|
1004 | rc = VERR_NOT_SUPPORTED;
|
---|
1005 |
|
---|
1006 | return rc;
|
---|
1007 | }
|
---|
1008 |
|
---|
1009 | static DECLCALLBACK(int) drvvdCryptoKeyStorePasswordRetain(void *pvUser, const char *pszId, const char **ppszPassword)
|
---|
1010 | {
|
---|
1011 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
1012 | int rc = VINF_SUCCESS;
|
---|
1013 |
|
---|
1014 | AssertPtr(pThis->pIfSecKey);
|
---|
1015 | if (pThis->pIfSecKey)
|
---|
1016 | rc = pThis->pIfSecKey->pfnPasswordRetain(pThis->pIfSecKey, pszId, ppszPassword);
|
---|
1017 | else
|
---|
1018 | rc = VERR_NOT_SUPPORTED;
|
---|
1019 |
|
---|
1020 | return rc;
|
---|
1021 | }
|
---|
1022 |
|
---|
1023 | static DECLCALLBACK(int) drvvdCryptoKeyStorePasswordRelease(void *pvUser, const char *pszId)
|
---|
1024 | {
|
---|
1025 | PVBOXDISK pThis = (PVBOXDISK)pvUser;
|
---|
1026 | int rc = VINF_SUCCESS;
|
---|
1027 |
|
---|
1028 | AssertPtr(pThis->pIfSecKey);
|
---|
1029 | if (pThis->pIfSecKey)
|
---|
1030 | rc = pThis->pIfSecKey->pfnPasswordRelease(pThis->pIfSecKey, pszId);
|
---|
1031 | else
|
---|
1032 | rc = VERR_NOT_SUPPORTED;
|
---|
1033 |
|
---|
1034 | return rc;
|
---|
1035 | }
|
---|
1036 |
|
---|
1037 | #ifdef VBOX_WITH_INIP
|
---|
1038 |
|
---|
1039 |
|
---|
1040 | /*********************************************************************************************************************************
|
---|
1041 | * VD TCP network stack interface implementation - INIP case *
|
---|
1042 | *********************************************************************************************************************************/
|
---|
1043 |
|
---|
1044 | /**
|
---|
1045 | * vvl: this structure duplicate meaning of sockaddr,
|
---|
1046 | * perhaps it'd be better to get rid of it.
|
---|
1047 | */
|
---|
1048 | typedef union INIPSOCKADDRUNION
|
---|
1049 | {
|
---|
1050 | struct sockaddr Addr;
|
---|
1051 | struct sockaddr_in Ipv4;
|
---|
1052 | #if LWIP_IPV6
|
---|
1053 | struct sockaddr_in6 Ipv6;
|
---|
1054 | #endif
|
---|
1055 | } INIPSOCKADDRUNION;
|
---|
1056 |
|
---|
1057 | typedef struct INIPSOCKET
|
---|
1058 | {
|
---|
1059 | int hSock;
|
---|
1060 | } INIPSOCKET, *PINIPSOCKET;
|
---|
1061 |
|
---|
1062 | static DECLCALLBACK(int) drvvdINIPFlush(VDSOCKET Sock);
|
---|
1063 |
|
---|
1064 | /** @interface_method_impl{VDINTERFACETCPNET,pfnSocketCreate} */
|
---|
1065 | static DECLCALLBACK(int) drvvdINIPSocketCreate(uint32_t fFlags, PVDSOCKET pSock)
|
---|
1066 | {
|
---|
1067 | PINIPSOCKET pSocketInt = NULL;
|
---|
1068 |
|
---|
1069 | /*
|
---|
1070 | * The extended select method is not supported because it is impossible to wakeup
|
---|
1071 | * the thread.
|
---|
1072 | */
|
---|
1073 | if (fFlags & VD_INTERFACETCPNET_CONNECT_EXTENDED_SELECT)
|
---|
1074 | return VERR_NOT_SUPPORTED;
|
---|
1075 |
|
---|
1076 | pSocketInt = (PINIPSOCKET)RTMemAllocZ(sizeof(INIPSOCKET));
|
---|
1077 | if (pSocketInt)
|
---|
1078 | {
|
---|
1079 | pSocketInt->hSock = INT32_MAX;
|
---|
1080 | *pSock = (VDSOCKET)pSocketInt;
|
---|
1081 | return VINF_SUCCESS;
|
---|
1082 | }
|
---|
1083 |
|
---|
1084 | return VERR_NO_MEMORY;
|
---|
1085 | }
|
---|
1086 |
|
---|
1087 | /** @interface_method_impl{VDINTERFACETCPNET,pfnSocketCreate} */
|
---|
1088 | static DECLCALLBACK(int) drvvdINIPSocketDestroy(VDSOCKET Sock)
|
---|
1089 | {
|
---|
1090 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1091 |
|
---|
1092 | RTMemFree(pSocketInt);
|
---|
1093 | return VINF_SUCCESS;
|
---|
1094 | }
|
---|
1095 |
|
---|
1096 | /** @interface_method_impl{VDINTERFACETCPNET,pfnClientConnect} */
|
---|
1097 | static DECLCALLBACK(int) drvvdINIPClientConnect(VDSOCKET Sock, const char *pszAddress, uint32_t uPort,
|
---|
1098 | RTMSINTERVAL cMillies)
|
---|
1099 | {
|
---|
1100 | int rc = VINF_SUCCESS;
|
---|
1101 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1102 | int iInetFamily = PF_INET;
|
---|
1103 | struct in_addr ip;
|
---|
1104 | #if LWIP_IPV6
|
---|
1105 | ip6_addr_t ip6;
|
---|
1106 | RT_ZERO(ip6);
|
---|
1107 | #endif
|
---|
1108 |
|
---|
1109 | NOREF(cMillies); /* LwIP doesn't support connect timeout. */
|
---|
1110 | RT_ZERO(ip); /* Shut up MSC. */
|
---|
1111 |
|
---|
1112 | /* Check whether lwIP is set up in this VM instance. */
|
---|
1113 | if (!DevINIPConfigured())
|
---|
1114 | {
|
---|
1115 | LogRelFunc(("no IP stack\n"));
|
---|
1116 | return VERR_NET_HOST_UNREACHABLE;
|
---|
1117 | }
|
---|
1118 | /* Resolve hostname. As there is no standard resolver for lwIP yet,
|
---|
1119 | * just accept numeric IP addresses for now. */
|
---|
1120 | #if LWIP_IPV6
|
---|
1121 | if (inet6_aton(pszAddress, &ip6))
|
---|
1122 | iInetFamily = PF_INET6;
|
---|
1123 | else /* concatination with if */
|
---|
1124 | #endif
|
---|
1125 | if (!lwip_inet_aton(pszAddress, &ip))
|
---|
1126 | {
|
---|
1127 | LogRelFunc(("cannot resolve IP %s\n", pszAddress));
|
---|
1128 | return VERR_NET_HOST_UNREACHABLE;
|
---|
1129 | }
|
---|
1130 | /* Create socket and connect. */
|
---|
1131 | int iSock = lwip_socket(iInetFamily, SOCK_STREAM, 0);
|
---|
1132 | if (iSock != -1)
|
---|
1133 | {
|
---|
1134 | struct sockaddr *pSockAddr = NULL;
|
---|
1135 | struct sockaddr_in InAddr = {0};
|
---|
1136 | #if LWIP_IPV6
|
---|
1137 | struct sockaddr_in6 In6Addr = {0};
|
---|
1138 | #endif
|
---|
1139 | if (iInetFamily == PF_INET)
|
---|
1140 | {
|
---|
1141 | InAddr.sin_family = AF_INET;
|
---|
1142 | InAddr.sin_port = htons(uPort);
|
---|
1143 | InAddr.sin_addr = ip;
|
---|
1144 | InAddr.sin_len = sizeof(InAddr);
|
---|
1145 | pSockAddr = (struct sockaddr *)&InAddr;
|
---|
1146 | }
|
---|
1147 | #if LWIP_IPV6
|
---|
1148 | else
|
---|
1149 | {
|
---|
1150 | In6Addr.sin6_family = AF_INET6;
|
---|
1151 | In6Addr.sin6_port = htons(uPort);
|
---|
1152 | memcpy(&In6Addr.sin6_addr, &ip6, sizeof(ip6));
|
---|
1153 | In6Addr.sin6_len = sizeof(In6Addr);
|
---|
1154 | pSockAddr = (struct sockaddr *)&In6Addr;
|
---|
1155 | }
|
---|
1156 | #endif
|
---|
1157 | if ( pSockAddr
|
---|
1158 | && !lwip_connect(iSock, pSockAddr, pSockAddr->sa_len))
|
---|
1159 | {
|
---|
1160 | pSocketInt->hSock = iSock;
|
---|
1161 | return VINF_SUCCESS;
|
---|
1162 | }
|
---|
1163 | rc = VERR_NET_CONNECTION_REFUSED; /** @todo real solution needed */
|
---|
1164 | lwip_close(iSock);
|
---|
1165 | }
|
---|
1166 | else
|
---|
1167 | rc = VERR_NET_CONNECTION_REFUSED; /** @todo real solution needed */
|
---|
1168 | return rc;
|
---|
1169 | }
|
---|
1170 |
|
---|
1171 | /** @interface_method_impl{VDINTERFACETCPNET,pfnClientClose} */
|
---|
1172 | static DECLCALLBACK(int) drvvdINIPClientClose(VDSOCKET Sock)
|
---|
1173 | {
|
---|
1174 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1175 |
|
---|
1176 | lwip_close(pSocketInt->hSock);
|
---|
1177 | pSocketInt->hSock = INT32_MAX;
|
---|
1178 | return VINF_SUCCESS; /** @todo real solution needed */
|
---|
1179 | }
|
---|
1180 |
|
---|
1181 | /** @interface_method_impl{VDINTERFACETCPNET,pfnIsClientConnected} */
|
---|
1182 | static DECLCALLBACK(bool) drvvdINIPIsClientConnected(VDSOCKET Sock)
|
---|
1183 | {
|
---|
1184 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1185 |
|
---|
1186 | return pSocketInt->hSock != INT32_MAX;
|
---|
1187 | }
|
---|
1188 |
|
---|
1189 | /** @interface_method_impl{VDINTERFACETCPNET,pfnSelectOne} */
|
---|
1190 | static DECLCALLBACK(int) drvvdINIPSelectOne(VDSOCKET Sock, RTMSINTERVAL cMillies)
|
---|
1191 | {
|
---|
1192 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1193 | fd_set fdsetR;
|
---|
1194 | FD_ZERO(&fdsetR);
|
---|
1195 | FD_SET((uintptr_t)pSocketInt->hSock, &fdsetR);
|
---|
1196 | fd_set fdsetE = fdsetR;
|
---|
1197 |
|
---|
1198 | int rc;
|
---|
1199 | if (cMillies == RT_INDEFINITE_WAIT)
|
---|
1200 | rc = lwip_select(pSocketInt->hSock + 1, &fdsetR, NULL, &fdsetE, NULL);
|
---|
1201 | else
|
---|
1202 | {
|
---|
1203 | struct timeval timeout;
|
---|
1204 | timeout.tv_sec = cMillies / 1000;
|
---|
1205 | timeout.tv_usec = (cMillies % 1000) * 1000;
|
---|
1206 | rc = lwip_select(pSocketInt->hSock + 1, &fdsetR, NULL, &fdsetE, &timeout);
|
---|
1207 | }
|
---|
1208 | if (rc > 0)
|
---|
1209 | return VINF_SUCCESS;
|
---|
1210 | if (rc == 0)
|
---|
1211 | return VERR_TIMEOUT;
|
---|
1212 | return VERR_NET_CONNECTION_REFUSED; /** @todo real solution needed */
|
---|
1213 | }
|
---|
1214 |
|
---|
1215 | /** @interface_method_impl{VDINTERFACETCPNET,pfnRead} */
|
---|
1216 | static DECLCALLBACK(int) drvvdINIPRead(VDSOCKET Sock, void *pvBuffer, size_t cbBuffer, size_t *pcbRead)
|
---|
1217 | {
|
---|
1218 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1219 |
|
---|
1220 | /* Do params checking */
|
---|
1221 | if (!pvBuffer || !cbBuffer)
|
---|
1222 | {
|
---|
1223 | AssertMsgFailed(("Invalid params\n"));
|
---|
1224 | return VERR_INVALID_PARAMETER;
|
---|
1225 | }
|
---|
1226 |
|
---|
1227 | /*
|
---|
1228 | * Read loop.
|
---|
1229 | * If pcbRead is NULL we have to fill the entire buffer!
|
---|
1230 | */
|
---|
1231 | size_t cbRead = 0;
|
---|
1232 | size_t cbToRead = cbBuffer;
|
---|
1233 | for (;;)
|
---|
1234 | {
|
---|
1235 | /** @todo this clipping here is just in case (the send function
|
---|
1236 | * needed it, so I added it here, too). Didn't investigate if this
|
---|
1237 | * really has issues. Better be safe than sorry. */
|
---|
1238 | ssize_t cbBytesRead = lwip_recv(pSocketInt->hSock, (char *)pvBuffer + cbRead,
|
---|
1239 | RT_MIN(cbToRead, 32768), 0);
|
---|
1240 | if (cbBytesRead < 0)
|
---|
1241 | return VERR_NET_CONNECTION_REFUSED; /** @todo real solution */
|
---|
1242 | if (cbBytesRead == 0 && errno) /** @todo r=bird: lwip_recv will not touch errno on Windows. This may apply to other hosts as well */
|
---|
1243 | return VERR_NET_CONNECTION_REFUSED; /** @todo real solution */
|
---|
1244 | if (pcbRead)
|
---|
1245 | {
|
---|
1246 | /* return partial data */
|
---|
1247 | *pcbRead = cbBytesRead;
|
---|
1248 | break;
|
---|
1249 | }
|
---|
1250 |
|
---|
1251 | /* read more? */
|
---|
1252 | cbRead += cbBytesRead;
|
---|
1253 | if (cbRead == cbBuffer)
|
---|
1254 | break;
|
---|
1255 |
|
---|
1256 | /* next */
|
---|
1257 | cbToRead = cbBuffer - cbRead;
|
---|
1258 | }
|
---|
1259 |
|
---|
1260 | return VINF_SUCCESS;
|
---|
1261 | }
|
---|
1262 |
|
---|
1263 | /** @interface_method_impl{VDINTERFACETCPNET,pfnWrite} */
|
---|
1264 | static DECLCALLBACK(int) drvvdINIPWrite(VDSOCKET Sock, const void *pvBuffer, size_t cbBuffer)
|
---|
1265 | {
|
---|
1266 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1267 |
|
---|
1268 | do
|
---|
1269 | {
|
---|
1270 | /** @todo lwip send only supports up to 65535 bytes in a single
|
---|
1271 | * send (stupid limitation buried in the code), so make sure we
|
---|
1272 | * don't get any wraparounds. This should be moved to DevINIP
|
---|
1273 | * stack interface once that's implemented. */
|
---|
1274 | ssize_t cbWritten = lwip_send(pSocketInt->hSock, (void *)pvBuffer,
|
---|
1275 | RT_MIN(cbBuffer, 32768), 0);
|
---|
1276 | if (cbWritten < 0)
|
---|
1277 | return VERR_NET_CONNECTION_REFUSED; /** @todo real solution needed */
|
---|
1278 | AssertMsg(cbBuffer >= (size_t)cbWritten, ("Wrote more than we requested!!! cbWritten=%d cbBuffer=%d\n",
|
---|
1279 | cbWritten, cbBuffer));
|
---|
1280 | cbBuffer -= cbWritten;
|
---|
1281 | pvBuffer = (const char *)pvBuffer + cbWritten;
|
---|
1282 | } while (cbBuffer);
|
---|
1283 |
|
---|
1284 | return VINF_SUCCESS;
|
---|
1285 | }
|
---|
1286 |
|
---|
1287 | /** @interface_method_impl{VDINTERFACETCPNET,pfnSgWrite} */
|
---|
1288 | static DECLCALLBACK(int) drvvdINIPSgWrite(VDSOCKET Sock, PCRTSGBUF pSgBuf)
|
---|
1289 | {
|
---|
1290 | int rc = VINF_SUCCESS;
|
---|
1291 |
|
---|
1292 | /* This is an extremely crude emulation, however it's good enough
|
---|
1293 | * for our iSCSI code. INIP has no sendmsg(). */
|
---|
1294 | for (unsigned i = 0; i < pSgBuf->cSegs; i++)
|
---|
1295 | {
|
---|
1296 | rc = drvvdINIPWrite(Sock, pSgBuf->paSegs[i].pvSeg,
|
---|
1297 | pSgBuf->paSegs[i].cbSeg);
|
---|
1298 | if (RT_FAILURE(rc))
|
---|
1299 | break;
|
---|
1300 | }
|
---|
1301 | if (RT_SUCCESS(rc))
|
---|
1302 | drvvdINIPFlush(Sock);
|
---|
1303 |
|
---|
1304 | return rc;
|
---|
1305 | }
|
---|
1306 |
|
---|
1307 | /** @interface_method_impl{VDINTERFACETCPNET,pfnFlush} */
|
---|
1308 | static DECLCALLBACK(int) drvvdINIPFlush(VDSOCKET Sock)
|
---|
1309 | {
|
---|
1310 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1311 |
|
---|
1312 | int fFlag = 1;
|
---|
1313 | lwip_setsockopt(pSocketInt->hSock, IPPROTO_TCP, TCP_NODELAY,
|
---|
1314 | (const char *)&fFlag, sizeof(fFlag));
|
---|
1315 | fFlag = 0;
|
---|
1316 | lwip_setsockopt(pSocketInt->hSock, IPPROTO_TCP, TCP_NODELAY,
|
---|
1317 | (const char *)&fFlag, sizeof(fFlag));
|
---|
1318 | return VINF_SUCCESS;
|
---|
1319 | }
|
---|
1320 |
|
---|
1321 | /** @interface_method_impl{VDINTERFACETCPNET,pfnSetSendCoalescing} */
|
---|
1322 | static DECLCALLBACK(int) drvvdINIPSetSendCoalescing(VDSOCKET Sock, bool fEnable)
|
---|
1323 | {
|
---|
1324 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1325 |
|
---|
1326 | int fFlag = fEnable ? 0 : 1;
|
---|
1327 | lwip_setsockopt(pSocketInt->hSock, IPPROTO_TCP, TCP_NODELAY,
|
---|
1328 | (const char *)&fFlag, sizeof(fFlag));
|
---|
1329 | return VINF_SUCCESS;
|
---|
1330 | }
|
---|
1331 |
|
---|
1332 | /** @interface_method_impl{VDINTERFACETCPNET,pfnGetLocalAddress} */
|
---|
1333 | static DECLCALLBACK(int) drvvdINIPGetLocalAddress(VDSOCKET Sock, PRTNETADDR pAddr)
|
---|
1334 | {
|
---|
1335 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1336 | INIPSOCKADDRUNION u;
|
---|
1337 | socklen_t cbAddr = sizeof(u);
|
---|
1338 | RT_ZERO(u);
|
---|
1339 | if (!lwip_getsockname(pSocketInt->hSock, &u.Addr, &cbAddr))
|
---|
1340 | {
|
---|
1341 | /*
|
---|
1342 | * Convert the address.
|
---|
1343 | */
|
---|
1344 | if ( cbAddr == sizeof(struct sockaddr_in)
|
---|
1345 | && u.Addr.sa_family == AF_INET)
|
---|
1346 | {
|
---|
1347 | RT_ZERO(*pAddr);
|
---|
1348 | pAddr->enmType = RTNETADDRTYPE_IPV4;
|
---|
1349 | pAddr->uPort = RT_N2H_U16(u.Ipv4.sin_port);
|
---|
1350 | pAddr->uAddr.IPv4.u = u.Ipv4.sin_addr.s_addr;
|
---|
1351 | }
|
---|
1352 | #if LWIP_IPV6
|
---|
1353 | else if ( cbAddr == sizeof(struct sockaddr_in6)
|
---|
1354 | && u.Addr.sa_family == AF_INET6)
|
---|
1355 | {
|
---|
1356 | RT_ZERO(*pAddr);
|
---|
1357 | pAddr->enmType = RTNETADDRTYPE_IPV6;
|
---|
1358 | pAddr->uPort = RT_N2H_U16(u.Ipv6.sin6_port);
|
---|
1359 | memcpy(&pAddr->uAddr.IPv6, &u.Ipv6.sin6_addr, sizeof(RTNETADDRIPV6));
|
---|
1360 | }
|
---|
1361 | #endif
|
---|
1362 | else
|
---|
1363 | return VERR_NET_ADDRESS_FAMILY_NOT_SUPPORTED;
|
---|
1364 | return VINF_SUCCESS;
|
---|
1365 | }
|
---|
1366 | return VERR_NET_OPERATION_NOT_SUPPORTED;
|
---|
1367 | }
|
---|
1368 |
|
---|
1369 | /** @interface_method_impl{VDINTERFACETCPNET,pfnGetPeerAddress} */
|
---|
1370 | static DECLCALLBACK(int) drvvdINIPGetPeerAddress(VDSOCKET Sock, PRTNETADDR pAddr)
|
---|
1371 | {
|
---|
1372 | PINIPSOCKET pSocketInt = (PINIPSOCKET)Sock;
|
---|
1373 | INIPSOCKADDRUNION u;
|
---|
1374 | socklen_t cbAddr = sizeof(u);
|
---|
1375 | RT_ZERO(u);
|
---|
1376 | if (!lwip_getpeername(pSocketInt->hSock, &u.Addr, &cbAddr))
|
---|
1377 | {
|
---|
1378 | /*
|
---|
1379 | * Convert the address.
|
---|
1380 | */
|
---|
1381 | if ( cbAddr == sizeof(struct sockaddr_in)
|
---|
1382 | && u.Addr.sa_family == AF_INET)
|
---|
1383 | {
|
---|
1384 | RT_ZERO(*pAddr);
|
---|
1385 | pAddr->enmType = RTNETADDRTYPE_IPV4;
|
---|
1386 | pAddr->uPort = RT_N2H_U16(u.Ipv4.sin_port);
|
---|
1387 | pAddr->uAddr.IPv4.u = u.Ipv4.sin_addr.s_addr;
|
---|
1388 | }
|
---|
1389 | #if LWIP_IPV6
|
---|
1390 | else if ( cbAddr == sizeof(struct sockaddr_in6)
|
---|
1391 | && u.Addr.sa_family == AF_INET6)
|
---|
1392 | {
|
---|
1393 | RT_ZERO(*pAddr);
|
---|
1394 | pAddr->enmType = RTNETADDRTYPE_IPV6;
|
---|
1395 | pAddr->uPort = RT_N2H_U16(u.Ipv6.sin6_port);
|
---|
1396 | memcpy(&pAddr->uAddr.IPv6, &u.Ipv6.sin6_addr, sizeof(RTNETADDRIPV6));
|
---|
1397 | }
|
---|
1398 | #endif
|
---|
1399 | else
|
---|
1400 | return VERR_NET_ADDRESS_FAMILY_NOT_SUPPORTED;
|
---|
1401 | return VINF_SUCCESS;
|
---|
1402 | }
|
---|
1403 | return VERR_NET_OPERATION_NOT_SUPPORTED;
|
---|
1404 | }
|
---|
1405 |
|
---|
1406 | /** @interface_method_impl{VDINTERFACETCPNET,pfnSelectOneEx} */
|
---|
1407 | static DECLCALLBACK(int) drvvdINIPSelectOneEx(VDSOCKET Sock, uint32_t fEvents, uint32_t *pfEvents, RTMSINTERVAL cMillies)
|
---|
1408 | {
|
---|
1409 | RT_NOREF(Sock, fEvents, pfEvents, cMillies);
|
---|
1410 | AssertMsgFailed(("Not supported!\n"));
|
---|
1411 | return VERR_NOT_SUPPORTED;
|
---|
1412 | }
|
---|
1413 |
|
---|
1414 | /** @interface_method_impl{VDINTERFACETCPNET,pfnPoke} */
|
---|
1415 | static DECLCALLBACK(int) drvvdINIPPoke(VDSOCKET Sock)
|
---|
1416 | {
|
---|
1417 | RT_NOREF(Sock);
|
---|
1418 | AssertMsgFailed(("Not supported!\n"));
|
---|
1419 | return VERR_NOT_SUPPORTED;
|
---|
1420 | }
|
---|
1421 |
|
---|
1422 | #endif /* VBOX_WITH_INIP */
|
---|
1423 |
|
---|
1424 |
|
---|
1425 | /**
|
---|
1426 | * Checks the prerequisites for encrypted I/O.
|
---|
1427 | *
|
---|
1428 | * @returns VBox status code.
|
---|
1429 | * @param pThis The VD driver instance data.
|
---|
1430 | * @param fSetError Flag whether to set a runtime error.
|
---|
1431 | */
|
---|
1432 | static int drvvdKeyCheckPrereqs(PVBOXDISK pThis, bool fSetError)
|
---|
1433 | {
|
---|
1434 | if ( pThis->CfgCrypto.pCfgNode
|
---|
1435 | && !pThis->pIfSecKey)
|
---|
1436 | {
|
---|
1437 | AssertPtr(pThis->pIfSecKeyHlp);
|
---|
1438 | pThis->pIfSecKeyHlp->pfnKeyMissingNotify(pThis->pIfSecKeyHlp);
|
---|
1439 |
|
---|
1440 | if (fSetError)
|
---|
1441 | {
|
---|
1442 | int rc = PDMDrvHlpVMSetRuntimeError(pThis->pDrvIns, VMSETRTERR_FLAGS_SUSPEND | VMSETRTERR_FLAGS_NO_WAIT, "DrvVD_DEKMISSING",
|
---|
1443 | N_("VD: The DEK for this disk is missing"));
|
---|
1444 | AssertRC(rc);
|
---|
1445 | }
|
---|
1446 | return VERR_VD_DEK_MISSING;
|
---|
1447 | }
|
---|
1448 |
|
---|
1449 | return VINF_SUCCESS;
|
---|
1450 | }
|
---|
1451 |
|
---|
1452 |
|
---|
1453 | /*********************************************************************************************************************************
|
---|
1454 | * Media interface methods *
|
---|
1455 | *********************************************************************************************************************************/
|
---|
1456 |
|
---|
1457 | /** @interface_method_impl{PDMIMEDIA,pfnRead} */
|
---|
1458 | static DECLCALLBACK(int) drvvdRead(PPDMIMEDIA pInterface,
|
---|
1459 | uint64_t off, void *pvBuf, size_t cbRead)
|
---|
1460 | {
|
---|
1461 | int rc = VINF_SUCCESS;
|
---|
1462 |
|
---|
1463 | LogFlowFunc(("off=%#llx pvBuf=%p cbRead=%d\n", off, pvBuf, cbRead));
|
---|
1464 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1465 |
|
---|
1466 | /*
|
---|
1467 | * Check the state.
|
---|
1468 | */
|
---|
1469 | if (!pThis->pDisk)
|
---|
1470 | {
|
---|
1471 | AssertMsgFailed(("Invalid state! Not mounted!\n"));
|
---|
1472 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1473 | }
|
---|
1474 |
|
---|
1475 | rc = drvvdKeyCheckPrereqs(pThis, true /* fSetError */);
|
---|
1476 | if (RT_FAILURE(rc))
|
---|
1477 | return rc;
|
---|
1478 |
|
---|
1479 | STAM_REL_COUNTER_INC(&pThis->StatReqsSubmitted);
|
---|
1480 | STAM_REL_COUNTER_INC(&pThis->StatReqsRead);
|
---|
1481 |
|
---|
1482 | if (!pThis->fBootAccelActive)
|
---|
1483 | rc = VDRead(pThis->pDisk, off, pvBuf, cbRead);
|
---|
1484 | else
|
---|
1485 | {
|
---|
1486 | /* Can we serve the request from the buffer? */
|
---|
1487 | if ( off >= pThis->offDisk
|
---|
1488 | && off - pThis->offDisk < pThis->cbDataValid)
|
---|
1489 | {
|
---|
1490 | size_t cbToCopy = RT_MIN(cbRead, pThis->offDisk + pThis->cbDataValid - off);
|
---|
1491 |
|
---|
1492 | memcpy(pvBuf, pThis->pbData + (off - pThis->offDisk), cbToCopy);
|
---|
1493 | cbRead -= cbToCopy;
|
---|
1494 | off += cbToCopy;
|
---|
1495 | pvBuf = (char *)pvBuf + cbToCopy;
|
---|
1496 | }
|
---|
1497 |
|
---|
1498 | if ( cbRead > 0
|
---|
1499 | && cbRead < pThis->cbBootAccelBuffer)
|
---|
1500 | {
|
---|
1501 | /* Increase request to the buffer size and read. */
|
---|
1502 | pThis->cbDataValid = RT_MIN(pThis->cbDisk - off, pThis->cbBootAccelBuffer);
|
---|
1503 | pThis->offDisk = off;
|
---|
1504 | rc = VDRead(pThis->pDisk, off, pThis->pbData, pThis->cbDataValid);
|
---|
1505 | if (RT_FAILURE(rc))
|
---|
1506 | pThis->cbDataValid = 0;
|
---|
1507 | else
|
---|
1508 | memcpy(pvBuf, pThis->pbData, cbRead);
|
---|
1509 | }
|
---|
1510 | else if (cbRead >= pThis->cbBootAccelBuffer)
|
---|
1511 | {
|
---|
1512 | pThis->fBootAccelActive = false; /* Deactiviate */
|
---|
1513 | }
|
---|
1514 | }
|
---|
1515 |
|
---|
1516 | if (RT_SUCCESS(rc))
|
---|
1517 | {
|
---|
1518 | STAM_REL_COUNTER_INC(&pThis->StatReqsSucceeded);
|
---|
1519 | STAM_REL_COUNTER_ADD(&pThis->StatBytesRead, cbRead);
|
---|
1520 | Log2(("%s: off=%#llx pvBuf=%p cbRead=%d\n%.*Rhxd\n", __FUNCTION__,
|
---|
1521 | off, pvBuf, cbRead, cbRead, pvBuf));
|
---|
1522 | }
|
---|
1523 | else
|
---|
1524 | STAM_REL_COUNTER_INC(&pThis->StatReqsFailed);
|
---|
1525 |
|
---|
1526 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1527 | return rc;
|
---|
1528 | }
|
---|
1529 |
|
---|
1530 | /** @interface_method_impl{PDMIMEDIA,pfnRead} */
|
---|
1531 | static DECLCALLBACK(int) drvvdReadPcBios(PPDMIMEDIA pInterface,
|
---|
1532 | uint64_t off, void *pvBuf, size_t cbRead)
|
---|
1533 | {
|
---|
1534 | int rc = VINF_SUCCESS;
|
---|
1535 |
|
---|
1536 | LogFlowFunc(("off=%#llx pvBuf=%p cbRead=%d\n", off, pvBuf, cbRead));
|
---|
1537 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1538 |
|
---|
1539 | /*
|
---|
1540 | * Check the state.
|
---|
1541 | */
|
---|
1542 | if (!pThis->pDisk)
|
---|
1543 | {
|
---|
1544 | AssertMsgFailed(("Invalid state! Not mounted!\n"));
|
---|
1545 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1546 | }
|
---|
1547 |
|
---|
1548 | if ( pThis->CfgCrypto.pCfgNode
|
---|
1549 | && !pThis->pIfSecKey)
|
---|
1550 | return VERR_VD_DEK_MISSING;
|
---|
1551 |
|
---|
1552 | if (!pThis->fBootAccelActive)
|
---|
1553 | rc = VDRead(pThis->pDisk, off, pvBuf, cbRead);
|
---|
1554 | else
|
---|
1555 | {
|
---|
1556 | /* Can we serve the request from the buffer? */
|
---|
1557 | if ( off >= pThis->offDisk
|
---|
1558 | && off - pThis->offDisk < pThis->cbDataValid)
|
---|
1559 | {
|
---|
1560 | size_t cbToCopy = RT_MIN(cbRead, pThis->offDisk + pThis->cbDataValid - off);
|
---|
1561 |
|
---|
1562 | memcpy(pvBuf, pThis->pbData + (off - pThis->offDisk), cbToCopy);
|
---|
1563 | cbRead -= cbToCopy;
|
---|
1564 | off += cbToCopy;
|
---|
1565 | pvBuf = (char *)pvBuf + cbToCopy;
|
---|
1566 | }
|
---|
1567 |
|
---|
1568 | if ( cbRead > 0
|
---|
1569 | && cbRead < pThis->cbBootAccelBuffer)
|
---|
1570 | {
|
---|
1571 | /* Increase request to the buffer size and read. */
|
---|
1572 | pThis->cbDataValid = RT_MIN(pThis->cbDisk - off, pThis->cbBootAccelBuffer);
|
---|
1573 | pThis->offDisk = off;
|
---|
1574 | rc = VDRead(pThis->pDisk, off, pThis->pbData, pThis->cbDataValid);
|
---|
1575 | if (RT_FAILURE(rc))
|
---|
1576 | pThis->cbDataValid = 0;
|
---|
1577 | else
|
---|
1578 | memcpy(pvBuf, pThis->pbData, cbRead);
|
---|
1579 | }
|
---|
1580 | else if (cbRead >= pThis->cbBootAccelBuffer)
|
---|
1581 | {
|
---|
1582 | pThis->fBootAccelActive = false; /* Deactiviate */
|
---|
1583 | }
|
---|
1584 | }
|
---|
1585 |
|
---|
1586 | if (RT_SUCCESS(rc))
|
---|
1587 | Log2(("%s: off=%#llx pvBuf=%p cbRead=%d\n%.*Rhxd\n", __FUNCTION__,
|
---|
1588 | off, pvBuf, cbRead, cbRead, pvBuf));
|
---|
1589 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1590 | return rc;
|
---|
1591 | }
|
---|
1592 |
|
---|
1593 |
|
---|
1594 | /** @interface_method_impl{PDMIMEDIA,pfnWrite} */
|
---|
1595 | static DECLCALLBACK(int) drvvdWrite(PPDMIMEDIA pInterface,
|
---|
1596 | uint64_t off, const void *pvBuf,
|
---|
1597 | size_t cbWrite)
|
---|
1598 | {
|
---|
1599 | LogFlowFunc(("off=%#llx pvBuf=%p cbWrite=%d\n", off, pvBuf, cbWrite));
|
---|
1600 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1601 | Log2(("%s: off=%#llx pvBuf=%p cbWrite=%d\n%.*Rhxd\n", __FUNCTION__,
|
---|
1602 | off, pvBuf, cbWrite, cbWrite, pvBuf));
|
---|
1603 |
|
---|
1604 | /*
|
---|
1605 | * Check the state.
|
---|
1606 | */
|
---|
1607 | if (!pThis->pDisk)
|
---|
1608 | {
|
---|
1609 | AssertMsgFailed(("Invalid state! Not mounted!\n"));
|
---|
1610 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1611 | }
|
---|
1612 |
|
---|
1613 | int rc = drvvdKeyCheckPrereqs(pThis, true /* fSetError */);
|
---|
1614 | if (RT_FAILURE(rc))
|
---|
1615 | return rc;
|
---|
1616 |
|
---|
1617 | /* Invalidate any buffer if boot acceleration is enabled. */
|
---|
1618 | if (pThis->fBootAccelActive)
|
---|
1619 | {
|
---|
1620 | pThis->cbDataValid = 0;
|
---|
1621 | pThis->offDisk = 0;
|
---|
1622 | }
|
---|
1623 |
|
---|
1624 | STAM_REL_COUNTER_INC(&pThis->StatReqsSubmitted);
|
---|
1625 | STAM_REL_COUNTER_INC(&pThis->StatReqsWrite);
|
---|
1626 |
|
---|
1627 | rc = VDWrite(pThis->pDisk, off, pvBuf, cbWrite);
|
---|
1628 | #ifdef VBOX_PERIODIC_FLUSH
|
---|
1629 | if (pThis->cbFlushInterval)
|
---|
1630 | {
|
---|
1631 | pThis->cbDataWritten += (uint32_t)cbWrite;
|
---|
1632 | if (pThis->cbDataWritten > pThis->cbFlushInterval)
|
---|
1633 | {
|
---|
1634 | pThis->cbDataWritten = 0;
|
---|
1635 | VDFlush(pThis->pDisk);
|
---|
1636 | }
|
---|
1637 | }
|
---|
1638 | #endif /* VBOX_PERIODIC_FLUSH */
|
---|
1639 |
|
---|
1640 | if (RT_SUCCESS(rc))
|
---|
1641 | {
|
---|
1642 | STAM_REL_COUNTER_INC(&pThis->StatReqsSucceeded);
|
---|
1643 | STAM_REL_COUNTER_ADD(&pThis->StatBytesWritten, cbWrite);
|
---|
1644 | }
|
---|
1645 | else
|
---|
1646 | STAM_REL_COUNTER_INC(&pThis->StatReqsFailed);
|
---|
1647 |
|
---|
1648 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1649 | return rc;
|
---|
1650 | }
|
---|
1651 |
|
---|
1652 | /** @interface_method_impl{PDMIMEDIA,pfnFlush} */
|
---|
1653 | static DECLCALLBACK(int) drvvdFlush(PPDMIMEDIA pInterface)
|
---|
1654 | {
|
---|
1655 | LogFlowFunc(("\n"));
|
---|
1656 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1657 |
|
---|
1658 | /*
|
---|
1659 | * Check the state.
|
---|
1660 | */
|
---|
1661 | if (!pThis->pDisk)
|
---|
1662 | {
|
---|
1663 | AssertMsgFailed(("Invalid state! Not mounted!\n"));
|
---|
1664 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1665 | }
|
---|
1666 |
|
---|
1667 | #ifdef VBOX_IGNORE_FLUSH
|
---|
1668 | if (pThis->fIgnoreFlush)
|
---|
1669 | return VINF_SUCCESS;
|
---|
1670 | #endif /* VBOX_IGNORE_FLUSH */
|
---|
1671 |
|
---|
1672 | STAM_REL_COUNTER_INC(&pThis->StatReqsSubmitted);
|
---|
1673 | STAM_REL_COUNTER_INC(&pThis->StatReqsFlush);
|
---|
1674 |
|
---|
1675 | int rc = VDFlush(pThis->pDisk);
|
---|
1676 | if (RT_SUCCESS(rc))
|
---|
1677 | STAM_REL_COUNTER_INC(&pThis->StatReqsSucceeded);
|
---|
1678 | else
|
---|
1679 | STAM_REL_COUNTER_INC(&pThis->StatReqsFailed);
|
---|
1680 |
|
---|
1681 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1682 | return rc;
|
---|
1683 | }
|
---|
1684 |
|
---|
1685 | /** @interface_method_impl{PDMIMEDIA,pfnMerge} */
|
---|
1686 | static DECLCALLBACK(int) drvvdMerge(PPDMIMEDIA pInterface,
|
---|
1687 | PFNSIMPLEPROGRESS pfnProgress,
|
---|
1688 | void *pvUser)
|
---|
1689 | {
|
---|
1690 | LogFlowFunc(("\n"));
|
---|
1691 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1692 | int rc = VINF_SUCCESS;
|
---|
1693 |
|
---|
1694 | /*
|
---|
1695 | * Check the state.
|
---|
1696 | */
|
---|
1697 | if (!pThis->pDisk)
|
---|
1698 | {
|
---|
1699 | AssertMsgFailed(("Invalid state! Not mounted!\n"));
|
---|
1700 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1701 | }
|
---|
1702 |
|
---|
1703 | /* Note: There is an unavoidable race between destruction and another
|
---|
1704 | * thread invoking this function. This is handled safely and gracefully by
|
---|
1705 | * atomically invalidating the lock handle in drvvdDestruct. */
|
---|
1706 | int rc2 = RTSemFastMutexRequest(pThis->MergeCompleteMutex);
|
---|
1707 | AssertRC(rc2);
|
---|
1708 | if (RT_SUCCESS(rc2) && pThis->fMergePending)
|
---|
1709 | {
|
---|
1710 | /* Take shortcut: PFNSIMPLEPROGRESS is exactly the same type as
|
---|
1711 | * PFNVDPROGRESS, so there's no need for a conversion function. */
|
---|
1712 | /** @todo maybe introduce a conversion which limits update frequency. */
|
---|
1713 | PVDINTERFACE pVDIfsOperation = NULL;
|
---|
1714 | VDINTERFACEPROGRESS VDIfProgress;
|
---|
1715 | VDIfProgress.pfnProgress = pfnProgress;
|
---|
1716 | rc2 = VDInterfaceAdd(&VDIfProgress.Core, "DrvVD_VDIProgress", VDINTERFACETYPE_PROGRESS,
|
---|
1717 | pvUser, sizeof(VDINTERFACEPROGRESS), &pVDIfsOperation);
|
---|
1718 | AssertRC(rc2);
|
---|
1719 | pThis->fMergePending = false;
|
---|
1720 | rc = VDMerge(pThis->pDisk, pThis->uMergeSource,
|
---|
1721 | pThis->uMergeTarget, pVDIfsOperation);
|
---|
1722 | }
|
---|
1723 | rc2 = RTSemFastMutexRelease(pThis->MergeCompleteMutex);
|
---|
1724 | AssertRC(rc2);
|
---|
1725 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1726 | return rc;
|
---|
1727 | }
|
---|
1728 |
|
---|
1729 | /** @interface_method_impl{PDMIMEDIA,pfnSetSecKeyIf} */
|
---|
1730 | static DECLCALLBACK(int) drvvdSetSecKeyIf(PPDMIMEDIA pInterface, PPDMISECKEY pIfSecKey, PPDMISECKEYHLP pIfSecKeyHlp)
|
---|
1731 | {
|
---|
1732 | LogFlowFunc(("\n"));
|
---|
1733 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1734 | int rc = VINF_SUCCESS;
|
---|
1735 |
|
---|
1736 | if (pThis->CfgCrypto.pCfgNode)
|
---|
1737 | {
|
---|
1738 | PVDINTERFACE pVDIfFilter = NULL;
|
---|
1739 |
|
---|
1740 | pThis->pIfSecKeyHlp = pIfSecKeyHlp;
|
---|
1741 |
|
---|
1742 | if ( pThis->pIfSecKey
|
---|
1743 | && !pIfSecKey)
|
---|
1744 | {
|
---|
1745 | /* Unload the crypto filter first to make sure it doesn't access the keys anymore. */
|
---|
1746 | rc = VDFilterRemove(pThis->pDisk, VD_FILTER_FLAGS_DEFAULT);
|
---|
1747 | AssertRC(rc);
|
---|
1748 |
|
---|
1749 | pThis->pIfSecKey = NULL;
|
---|
1750 | }
|
---|
1751 |
|
---|
1752 | if ( pIfSecKey
|
---|
1753 | && RT_SUCCESS(rc))
|
---|
1754 | {
|
---|
1755 | pThis->pIfSecKey = pIfSecKey;
|
---|
1756 |
|
---|
1757 | rc = VDInterfaceAdd(&pThis->VDIfCfg.Core, "DrvVD_Config", VDINTERFACETYPE_CONFIG,
|
---|
1758 | &pThis->CfgCrypto, sizeof(VDINTERFACECONFIG), &pVDIfFilter);
|
---|
1759 | AssertRC(rc);
|
---|
1760 |
|
---|
1761 | rc = VDInterfaceAdd(&pThis->VDIfCrypto.Core, "DrvVD_Crypto", VDINTERFACETYPE_CRYPTO,
|
---|
1762 | pThis, sizeof(VDINTERFACECRYPTO), &pVDIfFilter);
|
---|
1763 | AssertRC(rc);
|
---|
1764 |
|
---|
1765 | /* Load the crypt filter plugin. */
|
---|
1766 | rc = VDFilterAdd(pThis->pDisk, "CRYPT", VD_FILTER_FLAGS_DEFAULT, pVDIfFilter);
|
---|
1767 | if (RT_FAILURE(rc))
|
---|
1768 | pThis->pIfSecKey = NULL;
|
---|
1769 | }
|
---|
1770 | }
|
---|
1771 | else
|
---|
1772 | rc = VERR_NOT_SUPPORTED;
|
---|
1773 |
|
---|
1774 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1775 | return rc;
|
---|
1776 | }
|
---|
1777 |
|
---|
1778 | /** @interface_method_impl{PDMIMEDIA,pfnGetSize} */
|
---|
1779 | static DECLCALLBACK(uint64_t) drvvdGetSize(PPDMIMEDIA pInterface)
|
---|
1780 | {
|
---|
1781 | LogFlowFunc(("\n"));
|
---|
1782 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1783 |
|
---|
1784 | /*
|
---|
1785 | * Check the state.
|
---|
1786 | */
|
---|
1787 | if (!pThis->pDisk)
|
---|
1788 | return 0;
|
---|
1789 |
|
---|
1790 | uint64_t cb = VDGetSize(pThis->pDisk, VD_LAST_IMAGE);
|
---|
1791 | LogFlowFunc(("returns %#llx (%llu)\n", cb, cb));
|
---|
1792 | return cb;
|
---|
1793 | }
|
---|
1794 |
|
---|
1795 | /** @interface_method_impl{PDMIMEDIA,pfnGetSectorSize} */
|
---|
1796 | static DECLCALLBACK(uint32_t) drvvdGetSectorSize(PPDMIMEDIA pInterface)
|
---|
1797 | {
|
---|
1798 | LogFlowFunc(("\n"));
|
---|
1799 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1800 |
|
---|
1801 | /*
|
---|
1802 | * Check the state.
|
---|
1803 | */
|
---|
1804 | if (!pThis->pDisk)
|
---|
1805 | return 0;
|
---|
1806 |
|
---|
1807 | uint32_t cb = VDGetSectorSize(pThis->pDisk, VD_LAST_IMAGE);
|
---|
1808 | LogFlowFunc(("returns %u\n", cb));
|
---|
1809 | return cb;
|
---|
1810 | }
|
---|
1811 |
|
---|
1812 | /** @interface_method_impl{PDMIMEDIA,pfnIsReadOnly} */
|
---|
1813 | static DECLCALLBACK(bool) drvvdIsReadOnly(PPDMIMEDIA pInterface)
|
---|
1814 | {
|
---|
1815 | LogFlowFunc(("\n"));
|
---|
1816 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1817 |
|
---|
1818 | /*
|
---|
1819 | * Check the state.
|
---|
1820 | */
|
---|
1821 | if (!pThis->pDisk)
|
---|
1822 | return false;
|
---|
1823 |
|
---|
1824 | bool f = VDIsReadOnly(pThis->pDisk);
|
---|
1825 | LogFlowFunc(("returns %d\n", f));
|
---|
1826 | return f;
|
---|
1827 | }
|
---|
1828 |
|
---|
1829 | /** @interface_method_impl{PDMIMEDIA,pfnIsNonRotational} */
|
---|
1830 | static DECLCALLBACK(bool) drvvdIsNonRotational(PPDMIMEDIA pInterface)
|
---|
1831 | {
|
---|
1832 | LogFlowFunc(("\n"));
|
---|
1833 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1834 |
|
---|
1835 | return pThis->fNonRotational;
|
---|
1836 | }
|
---|
1837 |
|
---|
1838 | /** @interface_method_impl{PDMIMEDIA,pfnBiosGetPCHSGeometry} */
|
---|
1839 | static DECLCALLBACK(int) drvvdBiosGetPCHSGeometry(PPDMIMEDIA pInterface,
|
---|
1840 | PPDMMEDIAGEOMETRY pPCHSGeometry)
|
---|
1841 | {
|
---|
1842 | LogFlowFunc(("\n"));
|
---|
1843 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1844 | VDGEOMETRY geo;
|
---|
1845 |
|
---|
1846 | /*
|
---|
1847 | * Check the state.
|
---|
1848 | */
|
---|
1849 | if (!pThis->pDisk)
|
---|
1850 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1851 |
|
---|
1852 | /*
|
---|
1853 | * Use configured/cached values if present.
|
---|
1854 | */
|
---|
1855 | if ( pThis->PCHSGeometry.cCylinders > 0
|
---|
1856 | && pThis->PCHSGeometry.cHeads > 0
|
---|
1857 | && pThis->PCHSGeometry.cSectors > 0)
|
---|
1858 | {
|
---|
1859 | *pPCHSGeometry = pThis->PCHSGeometry;
|
---|
1860 | LogFlow(("%s: returns VINF_SUCCESS {%d,%d,%d}\n", __FUNCTION__, pThis->PCHSGeometry.cCylinders, pThis->PCHSGeometry.cHeads, pThis->PCHSGeometry.cSectors));
|
---|
1861 | return VINF_SUCCESS;
|
---|
1862 | }
|
---|
1863 |
|
---|
1864 | int rc = VDGetPCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, &geo);
|
---|
1865 | if (RT_SUCCESS(rc))
|
---|
1866 | {
|
---|
1867 | pPCHSGeometry->cCylinders = geo.cCylinders;
|
---|
1868 | pPCHSGeometry->cHeads = geo.cHeads;
|
---|
1869 | pPCHSGeometry->cSectors = geo.cSectors;
|
---|
1870 | pThis->PCHSGeometry = *pPCHSGeometry;
|
---|
1871 | }
|
---|
1872 | else
|
---|
1873 | {
|
---|
1874 | LogFunc(("geometry not available.\n"));
|
---|
1875 | rc = VERR_PDM_GEOMETRY_NOT_SET;
|
---|
1876 | }
|
---|
1877 | LogFlowFunc(("returns %Rrc (CHS=%d/%d/%d)\n",
|
---|
1878 | rc, pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
|
---|
1879 | return rc;
|
---|
1880 | }
|
---|
1881 |
|
---|
1882 | /** @interface_method_impl{PDMIMEDIA,pfnBiosSetPCHSGeometry} */
|
---|
1883 | static DECLCALLBACK(int) drvvdBiosSetPCHSGeometry(PPDMIMEDIA pInterface,
|
---|
1884 | PCPDMMEDIAGEOMETRY pPCHSGeometry)
|
---|
1885 | {
|
---|
1886 | LogFlowFunc(("CHS=%d/%d/%d\n",
|
---|
1887 | pPCHSGeometry->cCylinders, pPCHSGeometry->cHeads, pPCHSGeometry->cSectors));
|
---|
1888 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1889 | VDGEOMETRY geo;
|
---|
1890 |
|
---|
1891 | /*
|
---|
1892 | * Check the state.
|
---|
1893 | */
|
---|
1894 | if (!pThis->pDisk)
|
---|
1895 | {
|
---|
1896 | AssertMsgFailed(("Invalid state! Not mounted!\n"));
|
---|
1897 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1898 | }
|
---|
1899 |
|
---|
1900 | geo.cCylinders = pPCHSGeometry->cCylinders;
|
---|
1901 | geo.cHeads = pPCHSGeometry->cHeads;
|
---|
1902 | geo.cSectors = pPCHSGeometry->cSectors;
|
---|
1903 | int rc = VDSetPCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, &geo);
|
---|
1904 | if (rc == VERR_VD_GEOMETRY_NOT_SET)
|
---|
1905 | rc = VERR_PDM_GEOMETRY_NOT_SET;
|
---|
1906 | if (RT_SUCCESS(rc))
|
---|
1907 | pThis->PCHSGeometry = *pPCHSGeometry;
|
---|
1908 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1909 | return rc;
|
---|
1910 | }
|
---|
1911 |
|
---|
1912 | /** @interface_method_impl{PDMIMEDIA,pfnBiosGetLCHSGeometry} */
|
---|
1913 | static DECLCALLBACK(int) drvvdBiosGetLCHSGeometry(PPDMIMEDIA pInterface,
|
---|
1914 | PPDMMEDIAGEOMETRY pLCHSGeometry)
|
---|
1915 | {
|
---|
1916 | LogFlowFunc(("\n"));
|
---|
1917 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1918 | VDGEOMETRY geo;
|
---|
1919 |
|
---|
1920 | /*
|
---|
1921 | * Check the state.
|
---|
1922 | */
|
---|
1923 | if (!pThis->pDisk)
|
---|
1924 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1925 |
|
---|
1926 | /*
|
---|
1927 | * Use configured/cached values if present.
|
---|
1928 | */
|
---|
1929 | if ( pThis->LCHSGeometry.cCylinders > 0
|
---|
1930 | && pThis->LCHSGeometry.cHeads > 0
|
---|
1931 | && pThis->LCHSGeometry.cSectors > 0)
|
---|
1932 | {
|
---|
1933 | *pLCHSGeometry = pThis->LCHSGeometry;
|
---|
1934 | LogFlow(("%s: returns VINF_SUCCESS {%d,%d,%d}\n", __FUNCTION__, pThis->LCHSGeometry.cCylinders, pThis->LCHSGeometry.cHeads, pThis->LCHSGeometry.cSectors));
|
---|
1935 | return VINF_SUCCESS;
|
---|
1936 | }
|
---|
1937 |
|
---|
1938 | int rc = VDGetLCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, &geo);
|
---|
1939 | if (RT_SUCCESS(rc))
|
---|
1940 | {
|
---|
1941 | pLCHSGeometry->cCylinders = geo.cCylinders;
|
---|
1942 | pLCHSGeometry->cHeads = geo.cHeads;
|
---|
1943 | pLCHSGeometry->cSectors = geo.cSectors;
|
---|
1944 | pThis->LCHSGeometry = *pLCHSGeometry;
|
---|
1945 | }
|
---|
1946 | else
|
---|
1947 | {
|
---|
1948 | LogFunc(("geometry not available.\n"));
|
---|
1949 | rc = VERR_PDM_GEOMETRY_NOT_SET;
|
---|
1950 | }
|
---|
1951 | LogFlowFunc(("returns %Rrc (CHS=%d/%d/%d)\n",
|
---|
1952 | rc, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
|
---|
1953 | return rc;
|
---|
1954 | }
|
---|
1955 |
|
---|
1956 | /** @interface_method_impl{PDMIMEDIA,pfnBiosSetLCHSGeometry} */
|
---|
1957 | static DECLCALLBACK(int) drvvdBiosSetLCHSGeometry(PPDMIMEDIA pInterface,
|
---|
1958 | PCPDMMEDIAGEOMETRY pLCHSGeometry)
|
---|
1959 | {
|
---|
1960 | LogFlowFunc(("CHS=%d/%d/%d\n",
|
---|
1961 | pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
|
---|
1962 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1963 | VDGEOMETRY geo;
|
---|
1964 |
|
---|
1965 | /*
|
---|
1966 | * Check the state.
|
---|
1967 | */
|
---|
1968 | if (!pThis->pDisk)
|
---|
1969 | {
|
---|
1970 | AssertMsgFailed(("Invalid state! Not mounted!\n"));
|
---|
1971 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
1972 | }
|
---|
1973 |
|
---|
1974 | geo.cCylinders = pLCHSGeometry->cCylinders;
|
---|
1975 | geo.cHeads = pLCHSGeometry->cHeads;
|
---|
1976 | geo.cSectors = pLCHSGeometry->cSectors;
|
---|
1977 | int rc = VDSetLCHSGeometry(pThis->pDisk, VD_LAST_IMAGE, &geo);
|
---|
1978 | if (rc == VERR_VD_GEOMETRY_NOT_SET)
|
---|
1979 | rc = VERR_PDM_GEOMETRY_NOT_SET;
|
---|
1980 | if (RT_SUCCESS(rc))
|
---|
1981 | pThis->LCHSGeometry = *pLCHSGeometry;
|
---|
1982 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
1983 | return rc;
|
---|
1984 | }
|
---|
1985 |
|
---|
1986 | /** @interface_method_impl{PDMIMEDIA,pfnBiosIsVisible} */
|
---|
1987 | static DECLCALLBACK(bool) drvvdBiosIsVisible(PPDMIMEDIA pInterface)
|
---|
1988 | {
|
---|
1989 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1990 | LogFlow(("drvvdBiosIsVisible: returns %d\n", pThis->fBiosVisible));
|
---|
1991 | return pThis->fBiosVisible;
|
---|
1992 | }
|
---|
1993 |
|
---|
1994 | /** @interface_method_impl{PDMIMEDIA,pfnGetType} */
|
---|
1995 | static DECLCALLBACK(PDMMEDIATYPE) drvvdGetType(PPDMIMEDIA pInterface)
|
---|
1996 | {
|
---|
1997 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
1998 | LogFlow(("drvvdBiosIsVisible: returns %d\n", pThis->fBiosVisible));
|
---|
1999 | return pThis->enmType;
|
---|
2000 | }
|
---|
2001 |
|
---|
2002 | /** @interface_method_impl{PDMIMEDIA,pfnGetUuid} */
|
---|
2003 | static DECLCALLBACK(int) drvvdGetUuid(PPDMIMEDIA pInterface, PRTUUID pUuid)
|
---|
2004 | {
|
---|
2005 | LogFlowFunc(("\n"));
|
---|
2006 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
2007 |
|
---|
2008 | /*
|
---|
2009 | * Copy the uuid.
|
---|
2010 | */
|
---|
2011 | *pUuid = pThis->Uuid;
|
---|
2012 | LogFlowFunc(("returns {%RTuuid}\n", pUuid));
|
---|
2013 | return VINF_SUCCESS;
|
---|
2014 | }
|
---|
2015 |
|
---|
2016 | /** @interface_method_impl{PDMIMEDIA,pfnDiscard} */
|
---|
2017 | static DECLCALLBACK(int) drvvdDiscard(PPDMIMEDIA pInterface, PCRTRANGE paRanges, unsigned cRanges)
|
---|
2018 | {
|
---|
2019 | LogFlowFunc(("\n"));
|
---|
2020 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
2021 |
|
---|
2022 | STAM_REL_COUNTER_INC(&pThis->StatReqsSubmitted);
|
---|
2023 | STAM_REL_COUNTER_INC(&pThis->StatReqsDiscard);
|
---|
2024 |
|
---|
2025 | int rc = VDDiscardRanges(pThis->pDisk, paRanges, cRanges);
|
---|
2026 | if (RT_SUCCESS(rc))
|
---|
2027 | STAM_REL_COUNTER_INC(&pThis->StatReqsSucceeded);
|
---|
2028 | else
|
---|
2029 | STAM_REL_COUNTER_INC(&pThis->StatReqsFailed);
|
---|
2030 |
|
---|
2031 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
2032 | return rc;
|
---|
2033 | }
|
---|
2034 |
|
---|
2035 | /** @interface_method_impl{PDMIMEDIA,pfnGetRegionCount} */
|
---|
2036 | static DECLCALLBACK(uint32_t) drvvdGetRegionCount(PPDMIMEDIA pInterface)
|
---|
2037 | {
|
---|
2038 | LogFlowFunc(("\n"));
|
---|
2039 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
2040 | uint32_t cRegions = 0;
|
---|
2041 |
|
---|
2042 | if (pThis->pDisk)
|
---|
2043 | {
|
---|
2044 | if (!pThis->pRegionList)
|
---|
2045 | {
|
---|
2046 | int rc = VDQueryRegions(pThis->pDisk, VD_LAST_IMAGE, VD_REGION_LIST_F_LOC_SIZE_BLOCKS,
|
---|
2047 | &pThis->pRegionList);
|
---|
2048 | if (RT_SUCCESS(rc))
|
---|
2049 | cRegions = pThis->pRegionList->cRegions;
|
---|
2050 | }
|
---|
2051 | else
|
---|
2052 | cRegions = pThis->pRegionList->cRegions;
|
---|
2053 | }
|
---|
2054 |
|
---|
2055 | LogFlowFunc(("returns %u\n", cRegions));
|
---|
2056 | return cRegions;
|
---|
2057 | }
|
---|
2058 |
|
---|
2059 | /** @interface_method_impl{PDMIMEDIA,pfnQueryRegionProperties} */
|
---|
2060 | static DECLCALLBACK(int) drvvdQueryRegionProperties(PPDMIMEDIA pInterface, uint32_t uRegion, uint64_t *pu64LbaStart,
|
---|
2061 | uint64_t *pcBlocks, uint64_t *pcbBlock,
|
---|
2062 | PVDREGIONDATAFORM penmDataForm)
|
---|
2063 | {
|
---|
2064 | LogFlowFunc(("\n"));
|
---|
2065 | int rc = VINF_SUCCESS;
|
---|
2066 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
2067 |
|
---|
2068 | if ( pThis->pRegionList
|
---|
2069 | && uRegion < pThis->pRegionList->cRegions)
|
---|
2070 | {
|
---|
2071 | PCVDREGIONDESC pRegion = &pThis->pRegionList->aRegions[uRegion];
|
---|
2072 |
|
---|
2073 | if (pu64LbaStart)
|
---|
2074 | *pu64LbaStart = pRegion->offRegion;
|
---|
2075 | if (pcBlocks)
|
---|
2076 | *pcBlocks = pRegion->cRegionBlocksOrBytes;
|
---|
2077 | if (pcbBlock)
|
---|
2078 | *pcbBlock = pRegion->cbBlock;
|
---|
2079 | if (penmDataForm)
|
---|
2080 | *penmDataForm = pRegion->enmDataForm;
|
---|
2081 | }
|
---|
2082 | else
|
---|
2083 | rc = VERR_NOT_FOUND;
|
---|
2084 |
|
---|
2085 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
2086 | return rc;
|
---|
2087 | }
|
---|
2088 |
|
---|
2089 | /** @interface_method_impl{PDMIMEDIA,pfnQueryRegionPropertiesForLba} */
|
---|
2090 | static DECLCALLBACK(int) drvvdQueryRegionPropertiesForLba(PPDMIMEDIA pInterface, uint64_t u64LbaStart,
|
---|
2091 | uint32_t *puRegion, uint64_t *pcBlocks,
|
---|
2092 | uint64_t *pcbBlock, PVDREGIONDATAFORM penmDataForm)
|
---|
2093 | {
|
---|
2094 | LogFlowFunc(("\n"));
|
---|
2095 | int rc = VINF_SUCCESS;
|
---|
2096 | PVBOXDISK pThis = PDMIMEDIA_2_VBOXDISK(pInterface);
|
---|
2097 |
|
---|
2098 | if (!pThis->pRegionList)
|
---|
2099 | rc = VDQueryRegions(pThis->pDisk, VD_LAST_IMAGE, VD_REGION_LIST_F_LOC_SIZE_BLOCKS,
|
---|
2100 | &pThis->pRegionList);
|
---|
2101 |
|
---|
2102 | if (RT_SUCCESS(rc))
|
---|
2103 | {
|
---|
2104 | rc = VERR_NOT_FOUND;
|
---|
2105 |
|
---|
2106 | for (uint32_t i = 0; i < pThis->pRegionList->cRegions; i++)
|
---|
2107 | {
|
---|
2108 | PCVDREGIONDESC pRegion = &pThis->pRegionList->aRegions[i];
|
---|
2109 | if ( pRegion->offRegion <= u64LbaStart
|
---|
2110 | && pRegion->offRegion + pRegion->cRegionBlocksOrBytes > u64LbaStart)
|
---|
2111 | {
|
---|
2112 | uint64_t offRegion = u64LbaStart - pRegion->offRegion;
|
---|
2113 |
|
---|
2114 | if (puRegion)
|
---|
2115 | *puRegion = i;
|
---|
2116 | if (pcBlocks)
|
---|
2117 | *pcBlocks = pRegion->cRegionBlocksOrBytes - offRegion;
|
---|
2118 | if (pcbBlock)
|
---|
2119 | *pcbBlock = pRegion->cbBlock;
|
---|
2120 | if (penmDataForm)
|
---|
2121 | *penmDataForm = pRegion->enmDataForm;
|
---|
2122 |
|
---|
2123 | rc = VINF_SUCCESS;
|
---|
2124 | }
|
---|
2125 | }
|
---|
2126 | }
|
---|
2127 | else
|
---|
2128 | rc = VERR_NOT_FOUND;
|
---|
2129 |
|
---|
2130 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
2131 | return rc;
|
---|
2132 | }
|
---|
2133 |
|
---|
2134 | /* -=-=-=-=- IMount -=-=-=-=- */
|
---|
2135 |
|
---|
2136 | /** @interface_method_impl{PDMIMOUNT,pfnUnmount} */
|
---|
2137 | static DECLCALLBACK(int) drvvdUnmount(PPDMIMOUNT pInterface, bool fForce, bool fEject)
|
---|
2138 | {
|
---|
2139 | RT_NOREF(fEject);
|
---|
2140 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMount);
|
---|
2141 |
|
---|
2142 | /*
|
---|
2143 | * Validate state.
|
---|
2144 | */
|
---|
2145 | if (!pThis->pDisk)
|
---|
2146 | {
|
---|
2147 | Log(("drvvdUnmount: Not mounted\n"));
|
---|
2148 | return VERR_PDM_MEDIA_NOT_MOUNTED;
|
---|
2149 | }
|
---|
2150 | if (pThis->fLocked && !fForce)
|
---|
2151 | {
|
---|
2152 | Log(("drvvdUnmount: Locked\n"));
|
---|
2153 | return VERR_PDM_MEDIA_LOCKED;
|
---|
2154 | }
|
---|
2155 |
|
---|
2156 | /* Media is no longer locked even if it was previously. */
|
---|
2157 | pThis->fLocked = false;
|
---|
2158 | drvvdPowerOffOrDestructOrUnmount(pThis->pDrvIns);
|
---|
2159 |
|
---|
2160 | /*
|
---|
2161 | * Notify driver/device above us.
|
---|
2162 | */
|
---|
2163 | if (pThis->pDrvMountNotify)
|
---|
2164 | pThis->pDrvMountNotify->pfnUnmountNotify(pThis->pDrvMountNotify);
|
---|
2165 | Log(("drvblockUnmount: success\n"));
|
---|
2166 | return VINF_SUCCESS;
|
---|
2167 | }
|
---|
2168 |
|
---|
2169 |
|
---|
2170 | /** @interface_method_impl{PDMIMOUNT,pfnIsMounted} */
|
---|
2171 | static DECLCALLBACK(bool) drvvdIsMounted(PPDMIMOUNT pInterface)
|
---|
2172 | {
|
---|
2173 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMount);
|
---|
2174 | return pThis->pDisk != NULL;
|
---|
2175 | }
|
---|
2176 |
|
---|
2177 | /** @interface_method_impl{PDMIMOUNT,pfnLock} */
|
---|
2178 | static DECLCALLBACK(int) drvvdLock(PPDMIMOUNT pInterface)
|
---|
2179 | {
|
---|
2180 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMount);
|
---|
2181 | Log(("drvblockLock: %d -> %d\n", pThis->fLocked, true));
|
---|
2182 | pThis->fLocked = true;
|
---|
2183 | return VINF_SUCCESS;
|
---|
2184 | }
|
---|
2185 |
|
---|
2186 | /** @interface_method_impl{PDMIMOUNT,pfnUnlock} */
|
---|
2187 | static DECLCALLBACK(int) drvvdUnlock(PPDMIMOUNT pInterface)
|
---|
2188 | {
|
---|
2189 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMount);
|
---|
2190 | Log(("drvblockUnlock: %d -> %d\n", pThis->fLocked, false));
|
---|
2191 | pThis->fLocked = false;
|
---|
2192 | return VINF_SUCCESS;
|
---|
2193 | }
|
---|
2194 |
|
---|
2195 | /** @interface_method_impl{PDMIMOUNT,pfnIsLocked} */
|
---|
2196 | static DECLCALLBACK(bool) drvvdIsLocked(PPDMIMOUNT pInterface)
|
---|
2197 | {
|
---|
2198 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMount);
|
---|
2199 | return pThis->fLocked;
|
---|
2200 | }
|
---|
2201 |
|
---|
2202 |
|
---|
2203 | static DECLCALLBACK(void) drvvdBlkCacheReqComplete(void *pvUser1, void *pvUser2, int rcReq)
|
---|
2204 | {
|
---|
2205 | PVBOXDISK pThis = (PVBOXDISK)pvUser1;
|
---|
2206 |
|
---|
2207 | AssertPtr(pThis->pBlkCache);
|
---|
2208 | PDMDrvHlpBlkCacheIoXferComplete(pThis->pDrvIns, pThis->pBlkCache, (PPDMBLKCACHEIOXFER)pvUser2, rcReq);
|
---|
2209 | }
|
---|
2210 |
|
---|
2211 |
|
---|
2212 | /** @copydoc FNPDMBLKCACHEXFERCOMPLETEDRV */
|
---|
2213 | static DECLCALLBACK(void) drvvdBlkCacheXferCompleteIoReq(PPDMDRVINS pDrvIns, void *pvUser, int rc)
|
---|
2214 | {
|
---|
2215 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
2216 |
|
---|
2217 | drvvdMediaExIoReqCompleteWorker(pThis, (PPDMMEDIAEXIOREQINT)pvUser, rc, true /* fUpNotify */);
|
---|
2218 | }
|
---|
2219 |
|
---|
2220 | /** @copydoc FNPDMBLKCACHEXFERENQUEUEDRV */
|
---|
2221 | static DECLCALLBACK(int) drvvdBlkCacheXferEnqueue(PPDMDRVINS pDrvIns,
|
---|
2222 | PDMBLKCACHEXFERDIR enmXferDir,
|
---|
2223 | uint64_t off, size_t cbXfer,
|
---|
2224 | PCRTSGBUF pSgBuf, PPDMBLKCACHEIOXFER hIoXfer)
|
---|
2225 | {
|
---|
2226 | int rc = VINF_SUCCESS;
|
---|
2227 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
2228 |
|
---|
2229 | Assert (!pThis->CfgCrypto.pCfgNode);
|
---|
2230 |
|
---|
2231 | switch (enmXferDir)
|
---|
2232 | {
|
---|
2233 | case PDMBLKCACHEXFERDIR_READ:
|
---|
2234 | rc = VDAsyncRead(pThis->pDisk, off, cbXfer, pSgBuf, drvvdBlkCacheReqComplete,
|
---|
2235 | pThis, hIoXfer);
|
---|
2236 | break;
|
---|
2237 | case PDMBLKCACHEXFERDIR_WRITE:
|
---|
2238 | rc = VDAsyncWrite(pThis->pDisk, off, cbXfer, pSgBuf, drvvdBlkCacheReqComplete,
|
---|
2239 | pThis, hIoXfer);
|
---|
2240 | break;
|
---|
2241 | case PDMBLKCACHEXFERDIR_FLUSH:
|
---|
2242 | rc = VDAsyncFlush(pThis->pDisk, drvvdBlkCacheReqComplete, pThis, hIoXfer);
|
---|
2243 | break;
|
---|
2244 | default:
|
---|
2245 | AssertMsgFailed(("Invalid transfer type %d\n", enmXferDir));
|
---|
2246 | rc = VERR_INVALID_PARAMETER;
|
---|
2247 | }
|
---|
2248 |
|
---|
2249 | if (rc == VINF_VD_ASYNC_IO_FINISHED)
|
---|
2250 | PDMDrvHlpBlkCacheIoXferComplete(pThis->pDrvIns, pThis->pBlkCache, hIoXfer, VINF_SUCCESS);
|
---|
2251 | else if (RT_FAILURE(rc) && rc != VERR_VD_ASYNC_IO_IN_PROGRESS)
|
---|
2252 | PDMDrvHlpBlkCacheIoXferComplete(pThis->pDrvIns, pThis->pBlkCache, hIoXfer, rc);
|
---|
2253 |
|
---|
2254 | return VINF_SUCCESS;
|
---|
2255 | }
|
---|
2256 |
|
---|
2257 | /** @copydoc FNPDMBLKCACHEXFERENQUEUEDISCARDDRV */
|
---|
2258 | static DECLCALLBACK(int) drvvdBlkCacheXferEnqueueDiscard(PPDMDRVINS pDrvIns, PCRTRANGE paRanges,
|
---|
2259 | unsigned cRanges, PPDMBLKCACHEIOXFER hIoXfer)
|
---|
2260 | {
|
---|
2261 | int rc = VINF_SUCCESS;
|
---|
2262 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
2263 |
|
---|
2264 | rc = VDAsyncDiscardRanges(pThis->pDisk, paRanges, cRanges,
|
---|
2265 | drvvdBlkCacheReqComplete, pThis, hIoXfer);
|
---|
2266 |
|
---|
2267 | if (rc == VINF_VD_ASYNC_IO_FINISHED)
|
---|
2268 | PDMDrvHlpBlkCacheIoXferComplete(pThis->pDrvIns, pThis->pBlkCache, hIoXfer, VINF_SUCCESS);
|
---|
2269 | else if (RT_FAILURE(rc) && rc != VERR_VD_ASYNC_IO_IN_PROGRESS)
|
---|
2270 | PDMDrvHlpBlkCacheIoXferComplete(pThis->pDrvIns, pThis->pBlkCache, hIoXfer, rc);
|
---|
2271 |
|
---|
2272 | return VINF_SUCCESS;
|
---|
2273 | }
|
---|
2274 |
|
---|
2275 |
|
---|
2276 | /*********************************************************************************************************************************
|
---|
2277 | * Extended media interface methods *
|
---|
2278 | *********************************************************************************************************************************/
|
---|
2279 |
|
---|
2280 | static void drvvdMediaExIoReqWarningDiskFull(PPDMDRVINS pDrvIns)
|
---|
2281 | {
|
---|
2282 | int rc;
|
---|
2283 | LogRel(("VD#%u: Host disk full\n", pDrvIns->iInstance));
|
---|
2284 | rc = PDMDrvHlpVMSetRuntimeError(pDrvIns, VMSETRTERR_FLAGS_SUSPEND | VMSETRTERR_FLAGS_NO_WAIT, "DrvVD_DISKFULL",
|
---|
2285 | N_("Host system reported disk full. VM execution is suspended. You can resume after freeing some space"));
|
---|
2286 | AssertRC(rc);
|
---|
2287 | }
|
---|
2288 |
|
---|
2289 | static void drvvdMediaExIoReqWarningFileTooBig(PPDMDRVINS pDrvIns)
|
---|
2290 | {
|
---|
2291 | int rc;
|
---|
2292 | LogRel(("VD#%u: File too big\n", pDrvIns->iInstance));
|
---|
2293 | rc = PDMDrvHlpVMSetRuntimeError(pDrvIns, VMSETRTERR_FLAGS_SUSPEND | VMSETRTERR_FLAGS_NO_WAIT, "DrvVD_FILETOOBIG",
|
---|
2294 | N_("Host system reported that the file size limit of the host file system has been exceeded. VM execution is suspended. You need to move your virtual hard disk to a filesystem which allows bigger files"));
|
---|
2295 | AssertRC(rc);
|
---|
2296 | }
|
---|
2297 |
|
---|
2298 | static void drvvdMediaExIoReqWarningISCSI(PPDMDRVINS pDrvIns)
|
---|
2299 | {
|
---|
2300 | int rc;
|
---|
2301 | LogRel(("VD#%u: iSCSI target unavailable\n", pDrvIns->iInstance));
|
---|
2302 | rc = PDMDrvHlpVMSetRuntimeError(pDrvIns, VMSETRTERR_FLAGS_SUSPEND | VMSETRTERR_FLAGS_NO_WAIT, "DrvVD_ISCSIDOWN",
|
---|
2303 | N_("The iSCSI target has stopped responding. VM execution is suspended. You can resume when it is available again"));
|
---|
2304 | AssertRC(rc);
|
---|
2305 | }
|
---|
2306 |
|
---|
2307 | static void drvvdMediaExIoReqWarningFileStale(PPDMDRVINS pDrvIns)
|
---|
2308 | {
|
---|
2309 | int rc;
|
---|
2310 | LogRel(("VD#%u: File handle became stale\n", pDrvIns->iInstance));
|
---|
2311 | rc = PDMDrvHlpVMSetRuntimeError(pDrvIns, VMSETRTERR_FLAGS_SUSPEND | VMSETRTERR_FLAGS_NO_WAIT, "DrvVD_ISCSIDOWN",
|
---|
2312 | N_("The file became stale (often due to a restarted NFS server). VM execution is suspended. You can resume when it is available again"));
|
---|
2313 | AssertRC(rc);
|
---|
2314 | }
|
---|
2315 |
|
---|
2316 | static void drvvdMediaExIoReqWarningDekMissing(PPDMDRVINS pDrvIns)
|
---|
2317 | {
|
---|
2318 | LogRel(("VD#%u: DEK is missing\n", pDrvIns->iInstance));
|
---|
2319 | int rc = PDMDrvHlpVMSetRuntimeError(pDrvIns, VMSETRTERR_FLAGS_SUSPEND | VMSETRTERR_FLAGS_NO_WAIT, "DrvVD_DEKMISSING",
|
---|
2320 | N_("VD: The DEK for this disk is missing"));
|
---|
2321 | AssertRC(rc);
|
---|
2322 | }
|
---|
2323 |
|
---|
2324 | /**
|
---|
2325 | * Checks whether a given status code indicates a recoverable error
|
---|
2326 | * suspending the VM if it is.
|
---|
2327 | *
|
---|
2328 | * @returns Flag indicating whether the status code is a recoverable error
|
---|
2329 | * (full disk, broken network connection).
|
---|
2330 | * @param pThis VBox disk container instance data.
|
---|
2331 | * @param rc Status code to check.
|
---|
2332 | */
|
---|
2333 | static bool drvvdMediaExIoReqIsRedoSetWarning(PVBOXDISK pThis, int rc)
|
---|
2334 | {
|
---|
2335 | if (rc == VERR_DISK_FULL)
|
---|
2336 | {
|
---|
2337 | if (ASMAtomicCmpXchgBool(&pThis->fRedo, true, false))
|
---|
2338 | drvvdMediaExIoReqWarningDiskFull(pThis->pDrvIns);
|
---|
2339 | return true;
|
---|
2340 | }
|
---|
2341 | if (rc == VERR_FILE_TOO_BIG)
|
---|
2342 | {
|
---|
2343 | if (ASMAtomicCmpXchgBool(&pThis->fRedo, true, false))
|
---|
2344 | drvvdMediaExIoReqWarningFileTooBig(pThis->pDrvIns);
|
---|
2345 | return true;
|
---|
2346 | }
|
---|
2347 | if (rc == VERR_BROKEN_PIPE || rc == VERR_NET_CONNECTION_REFUSED)
|
---|
2348 | {
|
---|
2349 | /* iSCSI connection abort (first error) or failure to reestablish
|
---|
2350 | * connection (second error). Pause VM. On resume we'll retry. */
|
---|
2351 | if (ASMAtomicCmpXchgBool(&pThis->fRedo, true, false))
|
---|
2352 | drvvdMediaExIoReqWarningISCSI(pThis->pDrvIns);
|
---|
2353 | return true;
|
---|
2354 | }
|
---|
2355 | if (rc == VERR_STALE_FILE_HANDLE)
|
---|
2356 | {
|
---|
2357 | if (ASMAtomicCmpXchgBool(&pThis->fRedo, true, false))
|
---|
2358 | drvvdMediaExIoReqWarningFileStale(pThis->pDrvIns);
|
---|
2359 | return true;
|
---|
2360 | }
|
---|
2361 | if (rc == VERR_VD_DEK_MISSING)
|
---|
2362 | {
|
---|
2363 | /* Error message already set. */
|
---|
2364 | if (ASMAtomicCmpXchgBool(&pThis->fRedo, true, false))
|
---|
2365 | drvvdMediaExIoReqWarningDekMissing(pThis->pDrvIns);
|
---|
2366 | return true;
|
---|
2367 | }
|
---|
2368 |
|
---|
2369 | return false;
|
---|
2370 | }
|
---|
2371 |
|
---|
2372 | /**
|
---|
2373 | * Syncs the memory buffers between the I/O request allocator and the internal buffer.
|
---|
2374 | *
|
---|
2375 | * @returns VBox status code.
|
---|
2376 | * @param pThis VBox disk container instance data.
|
---|
2377 | * @param pIoReq I/O request to sync.
|
---|
2378 | * @param fToIoBuf Flag indicating the sync direction.
|
---|
2379 | * true to copy data from the allocators buffer to our internal buffer.
|
---|
2380 | * false for the other direction.
|
---|
2381 | */
|
---|
2382 | DECLINLINE(int) drvvdMediaExIoReqBufSync(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, bool fToIoBuf)
|
---|
2383 | {
|
---|
2384 | int rc = VINF_SUCCESS;
|
---|
2385 |
|
---|
2386 | Assert(pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE);
|
---|
2387 | Assert(pIoReq->ReadWrite.cbIoBuf > 0);
|
---|
2388 |
|
---|
2389 | if (!pIoReq->ReadWrite.fDirectBuf)
|
---|
2390 | {
|
---|
2391 | /* Make sure the buffer is reset. */
|
---|
2392 | RTSgBufReset(&pIoReq->ReadWrite.IoBuf.SgBuf);
|
---|
2393 |
|
---|
2394 | size_t const offSrc = pIoReq->ReadWrite.cbReq - pIoReq->ReadWrite.cbReqLeft;
|
---|
2395 | Assert((uint32_t)offSrc == offSrc);
|
---|
2396 | if (fToIoBuf)
|
---|
2397 | rc = pThis->pDrvMediaExPort->pfnIoReqCopyToBuf(pThis->pDrvMediaExPort, pIoReq, &pIoReq->abAlloc[0], (uint32_t)offSrc,
|
---|
2398 | &pIoReq->ReadWrite.IoBuf.SgBuf,
|
---|
2399 | RT_MIN(pIoReq->ReadWrite.cbIoBuf, pIoReq->ReadWrite.cbReqLeft));
|
---|
2400 | else
|
---|
2401 | rc = pThis->pDrvMediaExPort->pfnIoReqCopyFromBuf(pThis->pDrvMediaExPort, pIoReq, &pIoReq->abAlloc[0], (uint32_t)offSrc,
|
---|
2402 | &pIoReq->ReadWrite.IoBuf.SgBuf,
|
---|
2403 | (uint32_t)RT_MIN(pIoReq->ReadWrite.cbIoBuf, pIoReq->ReadWrite.cbReqLeft));
|
---|
2404 |
|
---|
2405 | RTSgBufReset(&pIoReq->ReadWrite.IoBuf.SgBuf);
|
---|
2406 | }
|
---|
2407 | return rc;
|
---|
2408 | }
|
---|
2409 |
|
---|
2410 | /**
|
---|
2411 | * Hashes the I/O request ID to an index for the allocated I/O request bin.
|
---|
2412 | */
|
---|
2413 | DECLINLINE(unsigned) drvvdMediaExIoReqIdHash(PDMMEDIAEXIOREQID uIoReqId)
|
---|
2414 | {
|
---|
2415 | return uIoReqId % DRVVD_VDIOREQ_ALLOC_BINS; /** @todo Find something better? */
|
---|
2416 | }
|
---|
2417 |
|
---|
2418 | /**
|
---|
2419 | * Inserts the given I/O request in to the list of allocated I/O requests.
|
---|
2420 | *
|
---|
2421 | * @returns VBox status code.
|
---|
2422 | * @param pThis VBox disk container instance data.
|
---|
2423 | * @param pIoReq I/O request to insert.
|
---|
2424 | */
|
---|
2425 | static int drvvdMediaExIoReqInsert(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq)
|
---|
2426 | {
|
---|
2427 | int rc = VINF_SUCCESS;
|
---|
2428 | unsigned idxBin = drvvdMediaExIoReqIdHash(pIoReq->uIoReqId);
|
---|
2429 |
|
---|
2430 | rc = RTSemFastMutexRequest(pThis->aIoReqAllocBins[idxBin].hMtxLstIoReqAlloc);
|
---|
2431 | if (RT_SUCCESS(rc))
|
---|
2432 | {
|
---|
2433 | /* Search for conflicting I/O request ID. */
|
---|
2434 | PPDMMEDIAEXIOREQINT pIt;
|
---|
2435 | RTListForEach(&pThis->aIoReqAllocBins[idxBin].LstIoReqAlloc, pIt, PDMMEDIAEXIOREQINT, NdAllocatedList)
|
---|
2436 | {
|
---|
2437 | if (RT_UNLIKELY( pIt->uIoReqId == pIoReq->uIoReqId
|
---|
2438 | && pIt->enmState != VDIOREQSTATE_CANCELED))
|
---|
2439 | {
|
---|
2440 | rc = VERR_PDM_MEDIAEX_IOREQID_CONFLICT;
|
---|
2441 | break;
|
---|
2442 | }
|
---|
2443 | }
|
---|
2444 | if (RT_SUCCESS(rc))
|
---|
2445 | RTListAppend(&pThis->aIoReqAllocBins[idxBin].LstIoReqAlloc, &pIoReq->NdAllocatedList);
|
---|
2446 | RTSemFastMutexRelease(pThis->aIoReqAllocBins[idxBin].hMtxLstIoReqAlloc);
|
---|
2447 | }
|
---|
2448 |
|
---|
2449 | return rc;
|
---|
2450 | }
|
---|
2451 |
|
---|
2452 | /**
|
---|
2453 | * Removes the given I/O request from the list of allocated I/O requests.
|
---|
2454 | *
|
---|
2455 | * @returns VBox status code.
|
---|
2456 | * @param pThis VBox disk container instance data.
|
---|
2457 | * @param pIoReq I/O request to insert.
|
---|
2458 | */
|
---|
2459 | static int drvvdMediaExIoReqRemove(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq)
|
---|
2460 | {
|
---|
2461 | int rc = VINF_SUCCESS;
|
---|
2462 | unsigned idxBin = drvvdMediaExIoReqIdHash(pIoReq->uIoReqId);
|
---|
2463 |
|
---|
2464 | rc = RTSemFastMutexRequest(pThis->aIoReqAllocBins[idxBin].hMtxLstIoReqAlloc);
|
---|
2465 | if (RT_SUCCESS(rc))
|
---|
2466 | {
|
---|
2467 | RTListNodeRemove(&pIoReq->NdAllocatedList);
|
---|
2468 | RTSemFastMutexRelease(pThis->aIoReqAllocBins[idxBin].hMtxLstIoReqAlloc);
|
---|
2469 | }
|
---|
2470 |
|
---|
2471 | return rc;
|
---|
2472 | }
|
---|
2473 |
|
---|
2474 | /**
|
---|
2475 | * Retires a given I/O request marking it as complete and notiyfing the
|
---|
2476 | * device/driver above about the completion if requested.
|
---|
2477 | *
|
---|
2478 | * @param pThis VBox disk container instance data.
|
---|
2479 | * @param pIoReq I/O request to complete.
|
---|
2480 | * @param rcReq The status code the request completed with.
|
---|
2481 | * @param fUpNotify Flag whether to notify the driver/device above us about the completion.
|
---|
2482 | */
|
---|
2483 | static void drvvdMediaExIoReqRetire(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, int rcReq, bool fUpNotify)
|
---|
2484 | {
|
---|
2485 | LogFlowFunc(("pThis=%#p pIoReq=%#p rcReq=%Rrc fUpNotify=%RTbool\n",
|
---|
2486 | pThis, pIoReq, rcReq, fUpNotify));
|
---|
2487 |
|
---|
2488 | bool fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_COMPLETING, VDIOREQSTATE_ACTIVE);
|
---|
2489 | if (fXchg)
|
---|
2490 | {
|
---|
2491 | uint32_t cNew = ASMAtomicDecU32(&pThis->cIoReqsActive);
|
---|
2492 | AssertMsg(cNew != UINT32_MAX, ("Number of active requests underflowed!\n")); RT_NOREF(cNew);
|
---|
2493 | }
|
---|
2494 | else
|
---|
2495 | {
|
---|
2496 | Assert(pIoReq->enmState == VDIOREQSTATE_CANCELED);
|
---|
2497 | rcReq = VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
2498 | }
|
---|
2499 |
|
---|
2500 | ASMAtomicXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_COMPLETED);
|
---|
2501 | drvvdMediaExIoReqBufFree(pThis, pIoReq);
|
---|
2502 |
|
---|
2503 | /*
|
---|
2504 | * Leave a release log entry if the request was active for more than 25 seconds
|
---|
2505 | * (30 seconds is the timeout of the guest).
|
---|
2506 | */
|
---|
2507 | uint64_t tsNow = RTTimeMilliTS();
|
---|
2508 | if (tsNow - pIoReq->tsSubmit >= 25 * 1000)
|
---|
2509 | {
|
---|
2510 | const char *pcszReq = NULL;
|
---|
2511 |
|
---|
2512 | switch (pIoReq->enmType)
|
---|
2513 | {
|
---|
2514 | case PDMMEDIAEXIOREQTYPE_READ:
|
---|
2515 | pcszReq = "Read";
|
---|
2516 | break;
|
---|
2517 | case PDMMEDIAEXIOREQTYPE_WRITE:
|
---|
2518 | pcszReq = "Write";
|
---|
2519 | break;
|
---|
2520 | case PDMMEDIAEXIOREQTYPE_FLUSH:
|
---|
2521 | pcszReq = "Flush";
|
---|
2522 | break;
|
---|
2523 | case PDMMEDIAEXIOREQTYPE_DISCARD:
|
---|
2524 | pcszReq = "Discard";
|
---|
2525 | break;
|
---|
2526 | default:
|
---|
2527 | pcszReq = "<Invalid>";
|
---|
2528 | }
|
---|
2529 |
|
---|
2530 | LogRel(("VD#%u: %s request was active for %llu seconds\n",
|
---|
2531 | pThis->pDrvIns->iInstance, pcszReq, (tsNow - pIoReq->tsSubmit) / 1000));
|
---|
2532 | }
|
---|
2533 |
|
---|
2534 | if (RT_FAILURE(rcReq))
|
---|
2535 | {
|
---|
2536 | /* Log the error. */
|
---|
2537 | if (pThis->cErrors++ < DRVVD_MAX_LOG_REL_ERRORS)
|
---|
2538 | {
|
---|
2539 | if (rcReq == VERR_PDM_MEDIAEX_IOREQ_CANCELED)
|
---|
2540 | {
|
---|
2541 | if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_FLUSH)
|
---|
2542 | LogRel(("VD#%u: Aborted flush returned rc=%Rrc\n",
|
---|
2543 | pThis->pDrvIns->iInstance, rcReq));
|
---|
2544 | else if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_DISCARD)
|
---|
2545 | LogRel(("VD#%u: Aborted discard returned rc=%Rrc\n",
|
---|
2546 | pThis->pDrvIns->iInstance, rcReq));
|
---|
2547 | else
|
---|
2548 | LogRel(("VD#%u: Aborted %s (%u bytes left) returned rc=%Rrc\n",
|
---|
2549 | pThis->pDrvIns->iInstance,
|
---|
2550 | pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
2551 | ? "read"
|
---|
2552 | : "write",
|
---|
2553 | pIoReq->ReadWrite.cbReqLeft, rcReq));
|
---|
2554 | }
|
---|
2555 | else
|
---|
2556 | {
|
---|
2557 | if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_FLUSH)
|
---|
2558 | LogRel(("VD#%u: Flush returned rc=%Rrc\n",
|
---|
2559 | pThis->pDrvIns->iInstance, rcReq));
|
---|
2560 | else if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_DISCARD)
|
---|
2561 | LogRel(("VD#%u: Discard returned rc=%Rrc\n",
|
---|
2562 | pThis->pDrvIns->iInstance, rcReq));
|
---|
2563 | else
|
---|
2564 | LogRel(("VD#%u: %s (%u bytes left) returned rc=%Rrc\n",
|
---|
2565 | pThis->pDrvIns->iInstance,
|
---|
2566 | pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
2567 | ? "Read"
|
---|
2568 | : "Write",
|
---|
2569 | pIoReq->ReadWrite.cbReqLeft, rcReq));
|
---|
2570 | }
|
---|
2571 | }
|
---|
2572 |
|
---|
2573 | STAM_REL_COUNTER_INC(&pThis->StatReqsFailed);
|
---|
2574 | }
|
---|
2575 | else
|
---|
2576 | {
|
---|
2577 | STAM_REL_COUNTER_INC(&pThis->StatReqsSucceeded);
|
---|
2578 |
|
---|
2579 | switch (pIoReq->enmType)
|
---|
2580 | {
|
---|
2581 | case PDMMEDIAEXIOREQTYPE_READ:
|
---|
2582 | STAM_REL_COUNTER_ADD(&pThis->StatBytesRead, pIoReq->ReadWrite.cbReq);
|
---|
2583 | break;
|
---|
2584 | case PDMMEDIAEXIOREQTYPE_WRITE:
|
---|
2585 | STAM_REL_COUNTER_ADD(&pThis->StatBytesWritten, pIoReq->ReadWrite.cbReq);
|
---|
2586 | break;
|
---|
2587 | default:
|
---|
2588 | break;
|
---|
2589 | }
|
---|
2590 | }
|
---|
2591 |
|
---|
2592 | if (fUpNotify)
|
---|
2593 | {
|
---|
2594 | int rc = pThis->pDrvMediaExPort->pfnIoReqCompleteNotify(pThis->pDrvMediaExPort,
|
---|
2595 | pIoReq, &pIoReq->abAlloc[0], rcReq);
|
---|
2596 | AssertRC(rc);
|
---|
2597 | }
|
---|
2598 |
|
---|
2599 | LogFlowFunc(("returns\n"));
|
---|
2600 | }
|
---|
2601 |
|
---|
2602 | /**
|
---|
2603 | * I/O request completion worker.
|
---|
2604 | *
|
---|
2605 | * @returns VBox status code.
|
---|
2606 | * @param pThis VBox disk container instance data.
|
---|
2607 | * @param pIoReq I/O request to complete.
|
---|
2608 | * @param rcReq The status code the request completed with.
|
---|
2609 | * @param fUpNotify Flag whether to notify the driver/device above us about the completion.
|
---|
2610 | */
|
---|
2611 | static int drvvdMediaExIoReqCompleteWorker(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, int rcReq, bool fUpNotify)
|
---|
2612 | {
|
---|
2613 | LogFlowFunc(("pThis=%#p pIoReq=%#p rcReq=%Rrc fUpNotify=%RTbool\n",
|
---|
2614 | pThis, pIoReq, rcReq, fUpNotify));
|
---|
2615 |
|
---|
2616 | /*
|
---|
2617 | * For a read we need to sync the memory before continuing to process
|
---|
2618 | * the request further.
|
---|
2619 | */
|
---|
2620 | if ( RT_SUCCESS(rcReq)
|
---|
2621 | && pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ)
|
---|
2622 | rcReq = drvvdMediaExIoReqBufSync(pThis, pIoReq, false /* fToIoBuf */);
|
---|
2623 |
|
---|
2624 | /*
|
---|
2625 | * When the request owner instructs us to handle recoverable errors like full disks
|
---|
2626 | * do it. Mark the request as suspended, notify the owner and put the request on the
|
---|
2627 | * redo list.
|
---|
2628 | */
|
---|
2629 | if ( RT_FAILURE(rcReq)
|
---|
2630 | && (pIoReq->fFlags & PDMIMEDIAEX_F_SUSPEND_ON_RECOVERABLE_ERR)
|
---|
2631 | && drvvdMediaExIoReqIsRedoSetWarning(pThis, rcReq))
|
---|
2632 | {
|
---|
2633 | bool fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_SUSPENDED, VDIOREQSTATE_ACTIVE);
|
---|
2634 | if (fXchg)
|
---|
2635 | {
|
---|
2636 | /* Put on redo list and adjust active request counter. */
|
---|
2637 | RTCritSectEnter(&pThis->CritSectIoReqRedo);
|
---|
2638 | RTListAppend(&pThis->LstIoReqRedo, &pIoReq->NdLstWait);
|
---|
2639 | RTCritSectLeave(&pThis->CritSectIoReqRedo);
|
---|
2640 | uint32_t cNew = ASMAtomicDecU32(&pThis->cIoReqsActive);
|
---|
2641 | AssertMsg(cNew != UINT32_MAX, ("Number of active requests underflowed!\n")); RT_NOREF(cNew);
|
---|
2642 | pThis->pDrvMediaExPort->pfnIoReqStateChanged(pThis->pDrvMediaExPort, pIoReq, &pIoReq->abAlloc[0],
|
---|
2643 | PDMMEDIAEXIOREQSTATE_SUSPENDED);
|
---|
2644 | LogFlowFunc(("Suspended I/O request %#p\n", pIoReq));
|
---|
2645 | rcReq = VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS;
|
---|
2646 | }
|
---|
2647 | else
|
---|
2648 | {
|
---|
2649 | /* Request was canceled inbetween, so don't care and notify the owner about the completed request. */
|
---|
2650 | Assert(pIoReq->enmState == VDIOREQSTATE_CANCELED);
|
---|
2651 | drvvdMediaExIoReqRetire(pThis, pIoReq, rcReq, fUpNotify);
|
---|
2652 | }
|
---|
2653 | }
|
---|
2654 | else
|
---|
2655 | {
|
---|
2656 | if ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
2657 | || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE)
|
---|
2658 | {
|
---|
2659 | /* Adjust the remaining amount to transfer. */
|
---|
2660 | Assert(pIoReq->ReadWrite.cbIoBuf > 0 || rcReq == VERR_PDM_MEDIAEX_IOREQ_CANCELED);
|
---|
2661 |
|
---|
2662 | size_t cbReqIo = RT_MIN(pIoReq->ReadWrite.cbReqLeft, pIoReq->ReadWrite.cbIoBuf);
|
---|
2663 | pIoReq->ReadWrite.offStart += cbReqIo;
|
---|
2664 | pIoReq->ReadWrite.cbReqLeft -= cbReqIo;
|
---|
2665 | }
|
---|
2666 |
|
---|
2667 | if ( RT_FAILURE(rcReq)
|
---|
2668 | || !pIoReq->ReadWrite.cbReqLeft
|
---|
2669 | || ( pIoReq->enmType != PDMMEDIAEXIOREQTYPE_READ
|
---|
2670 | && pIoReq->enmType != PDMMEDIAEXIOREQTYPE_WRITE))
|
---|
2671 | drvvdMediaExIoReqRetire(pThis, pIoReq, rcReq, fUpNotify);
|
---|
2672 | else
|
---|
2673 | drvvdMediaExIoReqReadWriteProcess(pThis, pIoReq, fUpNotify);
|
---|
2674 | }
|
---|
2675 |
|
---|
2676 | LogFlowFunc(("returns %Rrc\n", rcReq));
|
---|
2677 | return rcReq;
|
---|
2678 | }
|
---|
2679 |
|
---|
2680 |
|
---|
2681 | /**
|
---|
2682 | * Allocates a memory buffer suitable for I/O for the given request.
|
---|
2683 | *
|
---|
2684 | * @returns VBox status code.
|
---|
2685 | * @retval VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS if there is no I/O memory available to allocate and
|
---|
2686 | * the request was placed on a waiting list.
|
---|
2687 | * @param pThis VBox disk container instance data.
|
---|
2688 | * @param pIoReq I/O request to allocate memory for.
|
---|
2689 | * @param cb Size of the buffer.
|
---|
2690 | */
|
---|
2691 | DECLINLINE(int) drvvdMediaExIoReqBufAlloc(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, size_t cb)
|
---|
2692 | {
|
---|
2693 | int rc = VERR_NOT_SUPPORTED;
|
---|
2694 | LogFlowFunc(("pThis=%#p pIoReq=%#p cb=%zu\n", pThis, pIoReq, cb));
|
---|
2695 |
|
---|
2696 | /** @todo This does not work at all with encryption enabled because the encryption plugin
|
---|
2697 | * encrypts the data in place trashing guest memory and causing data corruption later on!
|
---|
2698 | *
|
---|
2699 | * DO NOT ENABLE UNLESS YOU WANT YOUR DATA SHREDDED!!!
|
---|
2700 | */
|
---|
2701 | #if 0
|
---|
2702 | if ( cb == _4K
|
---|
2703 | && pThis->pDrvMediaExPort->pfnIoReqQueryBuf)
|
---|
2704 | {
|
---|
2705 | /* Try to get a direct pointer to the buffer first. */
|
---|
2706 | void *pvBuf = NULL;
|
---|
2707 | size_t cbBuf = 0;
|
---|
2708 |
|
---|
2709 | STAM_COUNTER_INC(&pThis->StatQueryBufAttempts);
|
---|
2710 | rc = pThis->pDrvMediaExPort->pfnIoReqQueryBuf(pThis->pDrvMediaExPort, pIoReq, &pIoReq->abAlloc[0],
|
---|
2711 | &pvBuf, &cbBuf);
|
---|
2712 | if (RT_SUCCESS(rc))
|
---|
2713 | {
|
---|
2714 | STAM_COUNTER_INC(&pThis->StatQueryBufSuccess);
|
---|
2715 | pIoReq->ReadWrite.cbIoBuf = cbBuf;
|
---|
2716 | pIoReq->ReadWrite.fDirectBuf = true;
|
---|
2717 | pIoReq->ReadWrite.Direct.Seg.pvSeg = pvBuf;
|
---|
2718 | pIoReq->ReadWrite.Direct.Seg.cbSeg = cbBuf;
|
---|
2719 | RTSgBufInit(&pIoReq->ReadWrite.Direct.SgBuf, &pIoReq->ReadWrite.Direct.Seg, 1);
|
---|
2720 | pIoReq->ReadWrite.pSgBuf = &pIoReq->ReadWrite.Direct.SgBuf;
|
---|
2721 | }
|
---|
2722 | }
|
---|
2723 | #endif
|
---|
2724 |
|
---|
2725 | if (RT_FAILURE(rc))
|
---|
2726 | {
|
---|
2727 | rc = IOBUFMgrAllocBuf(pThis->hIoBufMgr, &pIoReq->ReadWrite.IoBuf, cb, &pIoReq->ReadWrite.cbIoBuf);
|
---|
2728 | if (rc == VERR_NO_MEMORY)
|
---|
2729 | {
|
---|
2730 | LogFlowFunc(("Could not allocate memory for request, deferring\n"));
|
---|
2731 | RTCritSectEnter(&pThis->CritSectIoReqsIoBufWait);
|
---|
2732 | RTListAppend(&pThis->LstIoReqIoBufWait, &pIoReq->NdLstWait);
|
---|
2733 | ASMAtomicIncU32(&pThis->cIoReqsWaiting);
|
---|
2734 | if (ASMAtomicReadBool(&pThis->fSuspending))
|
---|
2735 | pThis->pDrvMediaExPort->pfnIoReqStateChanged(pThis->pDrvMediaExPort, pIoReq, &pIoReq->abAlloc[0],
|
---|
2736 | PDMMEDIAEXIOREQSTATE_SUSPENDED);
|
---|
2737 | LogFlowFunc(("Suspended I/O request %#p\n", pIoReq));
|
---|
2738 | RTCritSectLeave(&pThis->CritSectIoReqsIoBufWait);
|
---|
2739 | rc = VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS;
|
---|
2740 | }
|
---|
2741 | else
|
---|
2742 | {
|
---|
2743 | LogFlowFunc(("Allocated %zu bytes of memory\n", pIoReq->ReadWrite.cbIoBuf));
|
---|
2744 | Assert(pIoReq->ReadWrite.cbIoBuf > 0);
|
---|
2745 | pIoReq->ReadWrite.fDirectBuf = false;
|
---|
2746 | pIoReq->ReadWrite.pSgBuf = &pIoReq->ReadWrite.IoBuf.SgBuf;
|
---|
2747 | }
|
---|
2748 | }
|
---|
2749 |
|
---|
2750 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
2751 | return rc;
|
---|
2752 | }
|
---|
2753 |
|
---|
2754 | /**
|
---|
2755 | * Wrapper around the various ways to read from the underlying medium (cache, async vs. sync).
|
---|
2756 | *
|
---|
2757 | * @returns VBox status code.
|
---|
2758 | * @param pThis VBox disk container instance data.
|
---|
2759 | * @param pIoReq I/O request to process.
|
---|
2760 | * @param cbReqIo Transfer size.
|
---|
2761 | * @param pcbReqIo Where to store the amount of transferred data.
|
---|
2762 | */
|
---|
2763 | static int drvvdMediaExIoReqReadWrapper(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, size_t cbReqIo, size_t *pcbReqIo)
|
---|
2764 | {
|
---|
2765 | int rc = VINF_SUCCESS;
|
---|
2766 |
|
---|
2767 | LogFlowFunc(("pThis=%#p pIoReq=%#p cbReqIo=%zu pcbReqIo=%#p\n", pThis, pIoReq, cbReqIo, pcbReqIo));
|
---|
2768 |
|
---|
2769 | Assert(cbReqIo > 0);
|
---|
2770 |
|
---|
2771 | if ( pThis->fAsyncIOSupported
|
---|
2772 | && !(pIoReq->fFlags & PDMIMEDIAEX_F_SYNC))
|
---|
2773 | {
|
---|
2774 | if (pThis->pBlkCache)
|
---|
2775 | {
|
---|
2776 | rc = PDMDrvHlpBlkCacheRead(pThis->pDrvIns, pThis->pBlkCache, pIoReq->ReadWrite.offStart,
|
---|
2777 | pIoReq->ReadWrite.pSgBuf, cbReqIo, pIoReq);
|
---|
2778 | if (rc == VINF_SUCCESS)
|
---|
2779 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2780 | else if (rc == VINF_AIO_TASK_PENDING)
|
---|
2781 | rc = VERR_VD_ASYNC_IO_IN_PROGRESS;
|
---|
2782 | }
|
---|
2783 | else
|
---|
2784 | rc = VDAsyncRead(pThis->pDisk, pIoReq->ReadWrite.offStart, cbReqIo, pIoReq->ReadWrite.pSgBuf,
|
---|
2785 | drvvdMediaExIoReqComplete, pThis, pIoReq);
|
---|
2786 | }
|
---|
2787 | else
|
---|
2788 | {
|
---|
2789 | void *pvBuf = RTSgBufGetNextSegment(pIoReq->ReadWrite.pSgBuf, &cbReqIo);
|
---|
2790 |
|
---|
2791 | Assert(cbReqIo > 0 && RT_VALID_PTR(pvBuf));
|
---|
2792 | rc = VDRead(pThis->pDisk, pIoReq->ReadWrite.offStart, pvBuf, cbReqIo);
|
---|
2793 | if (RT_SUCCESS(rc))
|
---|
2794 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2795 | }
|
---|
2796 |
|
---|
2797 | *pcbReqIo = cbReqIo;
|
---|
2798 |
|
---|
2799 | LogFlowFunc(("returns %Rrc *pcbReqIo=%zu\n", rc, *pcbReqIo));
|
---|
2800 | return rc;
|
---|
2801 | }
|
---|
2802 |
|
---|
2803 | /**
|
---|
2804 | * Wrapper around the various ways to write to the underlying medium (cache, async vs. sync).
|
---|
2805 | *
|
---|
2806 | * @returns VBox status code.
|
---|
2807 | * @param pThis VBox disk container instance data.
|
---|
2808 | * @param pIoReq I/O request to process.
|
---|
2809 | * @param cbReqIo Transfer size.
|
---|
2810 | * @param pcbReqIo Where to store the amount of transferred data.
|
---|
2811 | */
|
---|
2812 | static int drvvdMediaExIoReqWriteWrapper(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, size_t cbReqIo, size_t *pcbReqIo)
|
---|
2813 | {
|
---|
2814 | int rc = VINF_SUCCESS;
|
---|
2815 |
|
---|
2816 | Assert(cbReqIo > 0);
|
---|
2817 |
|
---|
2818 | LogFlowFunc(("pThis=%#p pIoReq=%#p cbReqIo=%zu pcbReqIo=%#p\n", pThis, pIoReq, cbReqIo, pcbReqIo));
|
---|
2819 |
|
---|
2820 | if ( pThis->fAsyncIOSupported
|
---|
2821 | && !(pIoReq->fFlags & PDMIMEDIAEX_F_SYNC))
|
---|
2822 | {
|
---|
2823 | if (pThis->pBlkCache)
|
---|
2824 | {
|
---|
2825 | rc = PDMDrvHlpBlkCacheWrite(pThis->pDrvIns, pThis->pBlkCache, pIoReq->ReadWrite.offStart,
|
---|
2826 | pIoReq->ReadWrite.pSgBuf, cbReqIo, pIoReq);
|
---|
2827 | if (rc == VINF_SUCCESS)
|
---|
2828 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2829 | else if (rc == VINF_AIO_TASK_PENDING)
|
---|
2830 | rc = VERR_VD_ASYNC_IO_IN_PROGRESS;
|
---|
2831 | }
|
---|
2832 | else
|
---|
2833 | rc = VDAsyncWrite(pThis->pDisk, pIoReq->ReadWrite.offStart, cbReqIo, pIoReq->ReadWrite.pSgBuf,
|
---|
2834 | drvvdMediaExIoReqComplete, pThis, pIoReq);
|
---|
2835 | }
|
---|
2836 | else
|
---|
2837 | {
|
---|
2838 | void *pvBuf = RTSgBufGetNextSegment(pIoReq->ReadWrite.pSgBuf, &cbReqIo);
|
---|
2839 |
|
---|
2840 | Assert(cbReqIo > 0 && RT_VALID_PTR(pvBuf));
|
---|
2841 | rc = VDWrite(pThis->pDisk, pIoReq->ReadWrite.offStart, pvBuf, cbReqIo);
|
---|
2842 | if (RT_SUCCESS(rc))
|
---|
2843 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2844 |
|
---|
2845 | #ifdef VBOX_PERIODIC_FLUSH
|
---|
2846 | if (pThis->cbFlushInterval)
|
---|
2847 | {
|
---|
2848 | pThis->cbDataWritten += (uint32_t)cbReqIo;
|
---|
2849 | if (pThis->cbDataWritten > pThis->cbFlushInterval)
|
---|
2850 | {
|
---|
2851 | pThis->cbDataWritten = 0;
|
---|
2852 | VDFlush(pThis->pDisk);
|
---|
2853 | }
|
---|
2854 | }
|
---|
2855 | #endif /* VBOX_PERIODIC_FLUSH */
|
---|
2856 | }
|
---|
2857 |
|
---|
2858 | *pcbReqIo = cbReqIo;
|
---|
2859 |
|
---|
2860 | LogFlowFunc(("returns %Rrc *pcbReqIo=%zu\n", rc, *pcbReqIo));
|
---|
2861 | return rc;
|
---|
2862 | }
|
---|
2863 |
|
---|
2864 | /**
|
---|
2865 | * Wrapper around the various ways to flush all data to the underlying medium (cache, async vs. sync).
|
---|
2866 | *
|
---|
2867 | * @returns VBox status code.
|
---|
2868 | * @param pThis VBox disk container instance data.
|
---|
2869 | * @param pIoReq I/O request to process.
|
---|
2870 | */
|
---|
2871 | static int drvvdMediaExIoReqFlushWrapper(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq)
|
---|
2872 | {
|
---|
2873 | int rc = VINF_SUCCESS;
|
---|
2874 |
|
---|
2875 | LogFlowFunc(("pThis=%#p pIoReq=%#p\n", pThis, pIoReq));
|
---|
2876 |
|
---|
2877 | if ( pThis->fAsyncIOSupported
|
---|
2878 | && !(pIoReq->fFlags & PDMIMEDIAEX_F_SYNC))
|
---|
2879 | {
|
---|
2880 | #ifdef VBOX_IGNORE_FLUSH
|
---|
2881 | if (pThis->fIgnoreFlushAsync)
|
---|
2882 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2883 | else
|
---|
2884 | #endif /* VBOX_IGNORE_FLUSH */
|
---|
2885 | {
|
---|
2886 | if (pThis->pBlkCache)
|
---|
2887 | {
|
---|
2888 | rc = PDMDrvHlpBlkCacheFlush(pThis->pDrvIns, pThis->pBlkCache, pIoReq);
|
---|
2889 | if (rc == VINF_SUCCESS)
|
---|
2890 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2891 | else if (rc == VINF_AIO_TASK_PENDING)
|
---|
2892 | rc = VERR_VD_ASYNC_IO_IN_PROGRESS;
|
---|
2893 | }
|
---|
2894 | else
|
---|
2895 | rc = VDAsyncFlush(pThis->pDisk, drvvdMediaExIoReqComplete, pThis, pIoReq);
|
---|
2896 | }
|
---|
2897 | }
|
---|
2898 | else
|
---|
2899 | {
|
---|
2900 | #ifdef VBOX_IGNORE_FLUSH
|
---|
2901 | if (pThis->fIgnoreFlush)
|
---|
2902 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2903 | else
|
---|
2904 | #endif /* VBOX_IGNORE_FLUSH */
|
---|
2905 | {
|
---|
2906 | rc = VDFlush(pThis->pDisk);
|
---|
2907 | if (RT_SUCCESS(rc))
|
---|
2908 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2909 | }
|
---|
2910 | }
|
---|
2911 |
|
---|
2912 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
2913 | return rc;
|
---|
2914 | }
|
---|
2915 |
|
---|
2916 | /**
|
---|
2917 | * Wrapper around the various ways to discard data blocks on the underlying medium (cache, async vs. sync).
|
---|
2918 | *
|
---|
2919 | * @returns VBox status code.
|
---|
2920 | * @param pThis VBox disk container instance data.
|
---|
2921 | * @param pIoReq I/O request to process.
|
---|
2922 | */
|
---|
2923 | static int drvvdMediaExIoReqDiscardWrapper(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq)
|
---|
2924 | {
|
---|
2925 | int rc = VINF_SUCCESS;
|
---|
2926 |
|
---|
2927 | LogFlowFunc(("pThis=%#p pIoReq=%#p\n", pThis, pIoReq));
|
---|
2928 |
|
---|
2929 | if ( pThis->fAsyncIOSupported
|
---|
2930 | && !(pIoReq->fFlags & PDMIMEDIAEX_F_SYNC))
|
---|
2931 | {
|
---|
2932 | if (pThis->pBlkCache)
|
---|
2933 | {
|
---|
2934 | rc = PDMDrvHlpBlkCacheDiscard(pThis->pDrvIns, pThis->pBlkCache,
|
---|
2935 | pIoReq->Discard.paRanges, pIoReq->Discard.cRanges,
|
---|
2936 | pIoReq);
|
---|
2937 | if (rc == VINF_SUCCESS)
|
---|
2938 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2939 | else if (rc == VINF_AIO_TASK_PENDING)
|
---|
2940 | rc = VERR_VD_ASYNC_IO_IN_PROGRESS;
|
---|
2941 | }
|
---|
2942 | else
|
---|
2943 | rc = VDAsyncDiscardRanges(pThis->pDisk, pIoReq->Discard.paRanges, pIoReq->Discard.cRanges,
|
---|
2944 | drvvdMediaExIoReqComplete, pThis, pIoReq);
|
---|
2945 | }
|
---|
2946 | else
|
---|
2947 | {
|
---|
2948 | rc = VDDiscardRanges(pThis->pDisk, pIoReq->Discard.paRanges, pIoReq->Discard.cRanges);
|
---|
2949 | if (RT_SUCCESS(rc))
|
---|
2950 | rc = VINF_VD_ASYNC_IO_FINISHED;
|
---|
2951 | }
|
---|
2952 |
|
---|
2953 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
2954 | return rc;
|
---|
2955 | }
|
---|
2956 |
|
---|
2957 | /**
|
---|
2958 | * Processes a read/write request.
|
---|
2959 | *
|
---|
2960 | * @returns VBox status code.
|
---|
2961 | * @param pThis VBox disk container instance data.
|
---|
2962 | * @param pIoReq I/O request to process.
|
---|
2963 | * @param fUpNotify Flag whether to notify the driver/device above us about the completion.
|
---|
2964 | */
|
---|
2965 | static int drvvdMediaExIoReqReadWriteProcess(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq, bool fUpNotify)
|
---|
2966 | {
|
---|
2967 | int rc = VINF_SUCCESS;
|
---|
2968 |
|
---|
2969 | LogFlowFunc(("pThis=%#p pIoReq=%#p fUpNotify=%RTbool\n", pThis, pIoReq, fUpNotify));
|
---|
2970 |
|
---|
2971 | Assert(pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE);
|
---|
2972 |
|
---|
2973 | rc = drvvdKeyCheckPrereqs(pThis, false /* fSetError */);
|
---|
2974 |
|
---|
2975 | while ( pIoReq->ReadWrite.cbReqLeft
|
---|
2976 | && rc == VINF_SUCCESS)
|
---|
2977 | {
|
---|
2978 | Assert(pIoReq->ReadWrite.cbIoBuf > 0);
|
---|
2979 |
|
---|
2980 | size_t cbReqIo = RT_MIN(pIoReq->ReadWrite.cbReqLeft, pIoReq->ReadWrite.cbIoBuf);
|
---|
2981 |
|
---|
2982 | if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ)
|
---|
2983 | rc = drvvdMediaExIoReqReadWrapper(pThis, pIoReq, cbReqIo, &cbReqIo);
|
---|
2984 | else
|
---|
2985 | {
|
---|
2986 | /* Sync memory buffer from the request initiator. */
|
---|
2987 | rc = drvvdMediaExIoReqBufSync(pThis, pIoReq, true /* fToIoBuf */);
|
---|
2988 | if (RT_SUCCESS(rc))
|
---|
2989 | rc = drvvdMediaExIoReqWriteWrapper(pThis, pIoReq, cbReqIo, &cbReqIo);
|
---|
2990 | }
|
---|
2991 |
|
---|
2992 | if (rc == VERR_VD_ASYNC_IO_IN_PROGRESS)
|
---|
2993 | rc = VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS;
|
---|
2994 | else if (rc == VINF_VD_ASYNC_IO_FINISHED)
|
---|
2995 | {
|
---|
2996 | /*
|
---|
2997 | * Don't sync the buffer or update the I/O state for the last chunk as it is done
|
---|
2998 | * already in the completion worker called below.
|
---|
2999 | */
|
---|
3000 | if (cbReqIo < pIoReq->ReadWrite.cbReqLeft)
|
---|
3001 | {
|
---|
3002 | if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ)
|
---|
3003 | rc = drvvdMediaExIoReqBufSync(pThis, pIoReq, false /* fToIoBuf */);
|
---|
3004 | else
|
---|
3005 | rc = VINF_SUCCESS;
|
---|
3006 | pIoReq->ReadWrite.offStart += cbReqIo;
|
---|
3007 | pIoReq->ReadWrite.cbReqLeft -= cbReqIo;
|
---|
3008 | }
|
---|
3009 | else
|
---|
3010 | {
|
---|
3011 | rc = VINF_SUCCESS;
|
---|
3012 | break;
|
---|
3013 | }
|
---|
3014 | }
|
---|
3015 | }
|
---|
3016 |
|
---|
3017 | if (rc != VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS)
|
---|
3018 | rc = drvvdMediaExIoReqCompleteWorker(pThis, pIoReq, rc, fUpNotify);
|
---|
3019 |
|
---|
3020 | LogFlowFunc(("returns %Rrc\n", rc));
|
---|
3021 | return rc;
|
---|
3022 | }
|
---|
3023 |
|
---|
3024 |
|
---|
3025 | /**
|
---|
3026 | * Tries to process any requests waiting for available I/O memory.
|
---|
3027 | *
|
---|
3028 | * @param pThis VBox disk container instance data.
|
---|
3029 | */
|
---|
3030 | static void drvvdMediaExIoReqProcessWaiting(PVBOXDISK pThis)
|
---|
3031 | {
|
---|
3032 | uint32_t cIoReqsWaiting = ASMAtomicXchgU32(&pThis->cIoReqsWaiting, 0);
|
---|
3033 | if (cIoReqsWaiting > 0)
|
---|
3034 | {
|
---|
3035 | RTLISTANCHOR LstIoReqProcess;
|
---|
3036 | RTLISTANCHOR LstIoReqCanceled;
|
---|
3037 | RTListInit(&LstIoReqProcess);
|
---|
3038 | RTListInit(&LstIoReqCanceled);
|
---|
3039 |
|
---|
3040 | /* Try to process as many requests as possible. */
|
---|
3041 | RTCritSectEnter(&pThis->CritSectIoReqsIoBufWait);
|
---|
3042 | PPDMMEDIAEXIOREQINT pIoReqCur, pIoReqNext;
|
---|
3043 |
|
---|
3044 | RTListForEachSafe(&pThis->LstIoReqIoBufWait, pIoReqCur, pIoReqNext, PDMMEDIAEXIOREQINT, NdLstWait)
|
---|
3045 | {
|
---|
3046 | LogFlowFunc(("Found I/O request %#p on waiting list, trying to allocate buffer of size %zu bytes\n",
|
---|
3047 | pIoReqCur, pIoReqCur->ReadWrite.cbReq));
|
---|
3048 |
|
---|
3049 | /* Allocate a suitable I/O buffer for this request. */
|
---|
3050 | int rc = IOBUFMgrAllocBuf(pThis->hIoBufMgr, &pIoReqCur->ReadWrite.IoBuf, pIoReqCur->ReadWrite.cbReq,
|
---|
3051 | &pIoReqCur->ReadWrite.cbIoBuf);
|
---|
3052 | if (rc == VINF_SUCCESS)
|
---|
3053 | {
|
---|
3054 | Assert(pIoReqCur->ReadWrite.cbIoBuf > 0);
|
---|
3055 |
|
---|
3056 | cIoReqsWaiting--;
|
---|
3057 | RTListNodeRemove(&pIoReqCur->NdLstWait);
|
---|
3058 |
|
---|
3059 | pIoReqCur->ReadWrite.fDirectBuf = false;
|
---|
3060 | pIoReqCur->ReadWrite.pSgBuf = &pIoReqCur->ReadWrite.IoBuf.SgBuf;
|
---|
3061 |
|
---|
3062 | bool fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReqCur->enmState,
|
---|
3063 | VDIOREQSTATE_ACTIVE, VDIOREQSTATE_ALLOCATED);
|
---|
3064 | if (RT_UNLIKELY(!fXchg))
|
---|
3065 | {
|
---|
3066 | /* Must have been canceled inbetween. */
|
---|
3067 | Assert(pIoReqCur->enmState == VDIOREQSTATE_CANCELED);
|
---|
3068 |
|
---|
3069 | /* Free the buffer here already again to let other requests get a chance to allocate the memory. */
|
---|
3070 | IOBUFMgrFreeBuf(&pIoReqCur->ReadWrite.IoBuf);
|
---|
3071 | pIoReqCur->ReadWrite.cbIoBuf = 0;
|
---|
3072 | RTListAppend(&LstIoReqCanceled, &pIoReqCur->NdLstWait);
|
---|
3073 | }
|
---|
3074 | else
|
---|
3075 | {
|
---|
3076 | ASMAtomicIncU32(&pThis->cIoReqsActive);
|
---|
3077 | RTListAppend(&LstIoReqProcess, &pIoReqCur->NdLstWait);
|
---|
3078 | }
|
---|
3079 | }
|
---|
3080 | else
|
---|
3081 | {
|
---|
3082 | Assert(rc == VERR_NO_MEMORY);
|
---|
3083 | break;
|
---|
3084 | }
|
---|
3085 | }
|
---|
3086 | RTCritSectLeave(&pThis->CritSectIoReqsIoBufWait);
|
---|
3087 |
|
---|
3088 | ASMAtomicAddU32(&pThis->cIoReqsWaiting, cIoReqsWaiting);
|
---|
3089 |
|
---|
3090 | /* Process the requests we could allocate memory for and the ones which got canceled outside the lock now. */
|
---|
3091 | RTListForEachSafe(&LstIoReqCanceled, pIoReqCur, pIoReqNext, PDMMEDIAEXIOREQINT, NdLstWait)
|
---|
3092 | {
|
---|
3093 | RTListNodeRemove(&pIoReqCur->NdLstWait);
|
---|
3094 | drvvdMediaExIoReqCompleteWorker(pThis, pIoReqCur, VERR_PDM_MEDIAEX_IOREQ_CANCELED, true /* fUpNotify */);
|
---|
3095 | }
|
---|
3096 |
|
---|
3097 | RTListForEachSafe(&LstIoReqProcess, pIoReqCur, pIoReqNext, PDMMEDIAEXIOREQINT, NdLstWait)
|
---|
3098 | {
|
---|
3099 | RTListNodeRemove(&pIoReqCur->NdLstWait);
|
---|
3100 | drvvdMediaExIoReqReadWriteProcess(pThis, pIoReqCur, true /* fUpNotify */);
|
---|
3101 | }
|
---|
3102 | }
|
---|
3103 | }
|
---|
3104 |
|
---|
3105 | /**
|
---|
3106 | * Frees a I/O memory buffer allocated previously.
|
---|
3107 | *
|
---|
3108 | * @param pThis VBox disk container instance data.
|
---|
3109 | * @param pIoReq I/O request for which to free memory.
|
---|
3110 | */
|
---|
3111 | DECLINLINE(void) drvvdMediaExIoReqBufFree(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq)
|
---|
3112 | {
|
---|
3113 | LogFlowFunc(("pThis=%#p pIoReq=%#p{.cbIoBuf=%zu}\n", pThis, pIoReq, pIoReq->ReadWrite.cbIoBuf));
|
---|
3114 |
|
---|
3115 | if ( ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
3116 | || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE)
|
---|
3117 | && !pIoReq->ReadWrite.fDirectBuf
|
---|
3118 | && pIoReq->ReadWrite.cbIoBuf > 0)
|
---|
3119 | {
|
---|
3120 | IOBUFMgrFreeBuf(&pIoReq->ReadWrite.IoBuf);
|
---|
3121 |
|
---|
3122 | if (!ASMAtomicReadBool(&pThis->fSuspending))
|
---|
3123 | drvvdMediaExIoReqProcessWaiting(pThis);
|
---|
3124 | }
|
---|
3125 |
|
---|
3126 | LogFlowFunc(("returns\n"));
|
---|
3127 | }
|
---|
3128 |
|
---|
3129 |
|
---|
3130 | /**
|
---|
3131 | * Returns a string description of the given request state.
|
---|
3132 | *
|
---|
3133 | * @returns Pointer to the stringified state.
|
---|
3134 | * @param enmState The state.
|
---|
3135 | */
|
---|
3136 | DECLINLINE(const char *) drvvdMediaExIoReqStateStringify(VDIOREQSTATE enmState)
|
---|
3137 | {
|
---|
3138 | #define STATE2STR(a_State) case VDIOREQSTATE_##a_State: return #a_State
|
---|
3139 | switch (enmState)
|
---|
3140 | {
|
---|
3141 | STATE2STR(INVALID);
|
---|
3142 | STATE2STR(FREE);
|
---|
3143 | STATE2STR(ALLOCATED);
|
---|
3144 | STATE2STR(ACTIVE);
|
---|
3145 | STATE2STR(SUSPENDED);
|
---|
3146 | STATE2STR(COMPLETING);
|
---|
3147 | STATE2STR(COMPLETED);
|
---|
3148 | STATE2STR(CANCELED);
|
---|
3149 | default:
|
---|
3150 | AssertMsgFailed(("Unknown state %u\n", enmState));
|
---|
3151 | return "UNKNOWN";
|
---|
3152 | }
|
---|
3153 | #undef STATE2STR
|
---|
3154 | }
|
---|
3155 |
|
---|
3156 |
|
---|
3157 | /**
|
---|
3158 | * Returns a string description of the given request type.
|
---|
3159 | *
|
---|
3160 | * @returns Pointer to the stringified type.
|
---|
3161 | * @param enmType The request type.
|
---|
3162 | */
|
---|
3163 | DECLINLINE(const char *) drvvdMediaExIoReqTypeStringify(PDMMEDIAEXIOREQTYPE enmType)
|
---|
3164 | {
|
---|
3165 | #define TYPE2STR(a_Type) case PDMMEDIAEXIOREQTYPE_##a_Type: return #a_Type
|
---|
3166 | switch (enmType)
|
---|
3167 | {
|
---|
3168 | TYPE2STR(INVALID);
|
---|
3169 | TYPE2STR(FLUSH);
|
---|
3170 | TYPE2STR(WRITE);
|
---|
3171 | TYPE2STR(READ);
|
---|
3172 | TYPE2STR(DISCARD);
|
---|
3173 | TYPE2STR(SCSI);
|
---|
3174 | default:
|
---|
3175 | AssertMsgFailed(("Unknown type %u\n", enmType));
|
---|
3176 | return "UNKNOWN";
|
---|
3177 | }
|
---|
3178 | #undef TYPE2STR
|
---|
3179 | }
|
---|
3180 |
|
---|
3181 |
|
---|
3182 | /**
|
---|
3183 | * Dumps the interesting bits about the given I/O request to the release log.
|
---|
3184 | *
|
---|
3185 | * @param pThis VBox disk container instance data.
|
---|
3186 | * @param pIoReq The I/O request to dump.
|
---|
3187 | */
|
---|
3188 | static void drvvdMediaExIoReqLogRel(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq)
|
---|
3189 | {
|
---|
3190 | uint64_t offStart = 0;
|
---|
3191 | size_t cbReq = 0;
|
---|
3192 | size_t cbLeft = 0;
|
---|
3193 | size_t cbBufSize = 0;
|
---|
3194 | uint64_t tsActive = RTTimeMilliTS() - pIoReq->tsSubmit;
|
---|
3195 |
|
---|
3196 | if ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
3197 | || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE)
|
---|
3198 | {
|
---|
3199 | offStart = pIoReq->ReadWrite.offStart;
|
---|
3200 | cbReq = pIoReq->ReadWrite.cbReq;
|
---|
3201 | cbLeft = pIoReq->ReadWrite.cbReqLeft;
|
---|
3202 | cbBufSize = pIoReq->ReadWrite.cbIoBuf;
|
---|
3203 | }
|
---|
3204 |
|
---|
3205 | LogRel(("VD#%u: Request{%#p}:\n"
|
---|
3206 | " Type=%s State=%s Id=%#llx SubmitTs=%llu {%llu} Flags=%#x\n"
|
---|
3207 | " Offset=%llu Size=%zu Left=%zu BufSize=%zu\n",
|
---|
3208 | pThis->pDrvIns->iInstance, pIoReq,
|
---|
3209 | drvvdMediaExIoReqTypeStringify(pIoReq->enmType),
|
---|
3210 | drvvdMediaExIoReqStateStringify(pIoReq->enmState),
|
---|
3211 | pIoReq->uIoReqId, pIoReq->tsSubmit, tsActive, pIoReq->fFlags,
|
---|
3212 | offStart, cbReq, cbLeft, cbBufSize));
|
---|
3213 | }
|
---|
3214 |
|
---|
3215 |
|
---|
3216 | /**
|
---|
3217 | * Returns whether the VM is in a running state.
|
---|
3218 | *
|
---|
3219 | * @returns Flag indicating whether the VM is currently in a running state.
|
---|
3220 | * @param pThis VBox disk container instance data.
|
---|
3221 | */
|
---|
3222 | DECLINLINE(bool) drvvdMediaExIoReqIsVmRunning(PVBOXDISK pThis)
|
---|
3223 | {
|
---|
3224 | VMSTATE enmVmState = PDMDrvHlpVMState(pThis->pDrvIns);
|
---|
3225 | if ( enmVmState == VMSTATE_RESUMING
|
---|
3226 | || enmVmState == VMSTATE_RUNNING
|
---|
3227 | || enmVmState == VMSTATE_RUNNING_LS
|
---|
3228 | || enmVmState == VMSTATE_RESETTING
|
---|
3229 | || enmVmState == VMSTATE_RESETTING_LS
|
---|
3230 | || enmVmState == VMSTATE_SOFT_RESETTING
|
---|
3231 | || enmVmState == VMSTATE_SOFT_RESETTING_LS
|
---|
3232 | || enmVmState == VMSTATE_SUSPENDING
|
---|
3233 | || enmVmState == VMSTATE_SUSPENDING_LS
|
---|
3234 | || enmVmState == VMSTATE_SUSPENDING_EXT_LS)
|
---|
3235 | return true;
|
---|
3236 |
|
---|
3237 | return false;
|
---|
3238 | }
|
---|
3239 |
|
---|
3240 | /**
|
---|
3241 | * @copydoc FNVDASYNCTRANSFERCOMPLETE
|
---|
3242 | */
|
---|
3243 | static DECLCALLBACK(void) drvvdMediaExIoReqComplete(void *pvUser1, void *pvUser2, int rcReq)
|
---|
3244 | {
|
---|
3245 | PVBOXDISK pThis = (PVBOXDISK)pvUser1;
|
---|
3246 | PPDMMEDIAEXIOREQINT pIoReq = (PPDMMEDIAEXIOREQINT)pvUser2;
|
---|
3247 |
|
---|
3248 | drvvdMediaExIoReqCompleteWorker(pThis, pIoReq, rcReq, true /* fUpNotify */);
|
---|
3249 | }
|
---|
3250 |
|
---|
3251 | /**
|
---|
3252 | * Tries to cancel the given I/O request returning the result.
|
---|
3253 | *
|
---|
3254 | * @returns Flag whether the request was successfully canceled or whether it
|
---|
3255 | * already complete inbetween.
|
---|
3256 | * @param pThis VBox disk container instance data.
|
---|
3257 | * @param pIoReq The I/O request to cancel.
|
---|
3258 | */
|
---|
3259 | static bool drvvdMediaExIoReqCancel(PVBOXDISK pThis, PPDMMEDIAEXIOREQINT pIoReq)
|
---|
3260 | {
|
---|
3261 | bool fXchg = false;
|
---|
3262 | VDIOREQSTATE enmStateOld = (VDIOREQSTATE)ASMAtomicReadU32((volatile uint32_t *)&pIoReq->enmState);
|
---|
3263 |
|
---|
3264 | drvvdMediaExIoReqLogRel(pThis, pIoReq);
|
---|
3265 |
|
---|
3266 | /*
|
---|
3267 | * We might have to try canceling the request multiple times if it transitioned from
|
---|
3268 | * ALLOCATED to ACTIVE or to SUSPENDED between reading the state and trying to change it.
|
---|
3269 | */
|
---|
3270 | while ( ( enmStateOld == VDIOREQSTATE_ALLOCATED
|
---|
3271 | || enmStateOld == VDIOREQSTATE_ACTIVE
|
---|
3272 | || enmStateOld == VDIOREQSTATE_SUSPENDED)
|
---|
3273 | && !fXchg)
|
---|
3274 | {
|
---|
3275 | fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_CANCELED, enmStateOld);
|
---|
3276 | if (fXchg)
|
---|
3277 | break;
|
---|
3278 |
|
---|
3279 | enmStateOld = (VDIOREQSTATE)ASMAtomicReadU32((volatile uint32_t *)&pIoReq->enmState);
|
---|
3280 | }
|
---|
3281 |
|
---|
3282 | if (fXchg && enmStateOld == VDIOREQSTATE_ACTIVE)
|
---|
3283 | {
|
---|
3284 | uint32_t cNew = ASMAtomicDecU32(&pThis->cIoReqsActive);
|
---|
3285 | AssertMsg(cNew != UINT32_MAX, ("Number of active requests underflowed!\n")); RT_NOREF(cNew);
|
---|
3286 | }
|
---|
3287 |
|
---|
3288 | return fXchg;
|
---|
3289 | }
|
---|
3290 |
|
---|
3291 | /**
|
---|
3292 | * @interface_method_impl{PDMIMEDIAEX,pfnQueryFeatures}
|
---|
3293 | */
|
---|
3294 | static DECLCALLBACK(int) drvvdQueryFeatures(PPDMIMEDIAEX pInterface, uint32_t *pfFeatures)
|
---|
3295 | {
|
---|
3296 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3297 |
|
---|
3298 | AssertPtrReturn(pfFeatures, VERR_INVALID_POINTER);
|
---|
3299 |
|
---|
3300 | uint32_t fFeatures = 0;
|
---|
3301 | if (pThis->fAsyncIOSupported)
|
---|
3302 | fFeatures |= PDMIMEDIAEX_FEATURE_F_ASYNC;
|
---|
3303 | if (pThis->IMedia.pfnDiscard)
|
---|
3304 | fFeatures |= PDMIMEDIAEX_FEATURE_F_DISCARD;
|
---|
3305 |
|
---|
3306 | *pfFeatures = fFeatures;
|
---|
3307 |
|
---|
3308 | return VINF_SUCCESS;
|
---|
3309 | }
|
---|
3310 |
|
---|
3311 |
|
---|
3312 | /**
|
---|
3313 | * @interface_method_impl{PDMIMEDIAEX,pfnNotifySuspend}
|
---|
3314 | */
|
---|
3315 | static DECLCALLBACK(void) drvvdNotifySuspend(PPDMIMEDIAEX pInterface)
|
---|
3316 | {
|
---|
3317 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3318 |
|
---|
3319 | ASMAtomicXchgBool(&pThis->fSuspending, true);
|
---|
3320 |
|
---|
3321 | /* Mark all waiting requests as suspended so they don't get accounted for. */
|
---|
3322 | RTCritSectEnter(&pThis->CritSectIoReqsIoBufWait);
|
---|
3323 | PPDMMEDIAEXIOREQINT pIoReqCur, pIoReqNext;
|
---|
3324 | RTListForEachSafe(&pThis->LstIoReqIoBufWait, pIoReqCur, pIoReqNext, PDMMEDIAEXIOREQINT, NdLstWait)
|
---|
3325 | {
|
---|
3326 | pThis->pDrvMediaExPort->pfnIoReqStateChanged(pThis->pDrvMediaExPort, pIoReqCur, &pIoReqCur->abAlloc[0],
|
---|
3327 | PDMMEDIAEXIOREQSTATE_SUSPENDED);
|
---|
3328 | LogFlowFunc(("Suspended I/O request %#p\n", pIoReqCur));
|
---|
3329 | }
|
---|
3330 | RTCritSectLeave(&pThis->CritSectIoReqsIoBufWait);
|
---|
3331 | }
|
---|
3332 |
|
---|
3333 |
|
---|
3334 | /**
|
---|
3335 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqAllocSizeSet}
|
---|
3336 | */
|
---|
3337 | static DECLCALLBACK(int) drvvdIoReqAllocSizeSet(PPDMIMEDIAEX pInterface, size_t cbIoReqAlloc)
|
---|
3338 | {
|
---|
3339 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3340 | if (RT_UNLIKELY(pThis->hIoReqCache != NIL_RTMEMCACHE))
|
---|
3341 | return VERR_INVALID_STATE;
|
---|
3342 |
|
---|
3343 | return RTMemCacheCreate(&pThis->hIoReqCache, sizeof(PDMMEDIAEXIOREQINT) + cbIoReqAlloc, 0, UINT32_MAX,
|
---|
3344 | NULL, NULL, NULL, 0);
|
---|
3345 | }
|
---|
3346 |
|
---|
3347 | /**
|
---|
3348 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqAlloc}
|
---|
3349 | */
|
---|
3350 | static DECLCALLBACK(int) drvvdIoReqAlloc(PPDMIMEDIAEX pInterface, PPDMMEDIAEXIOREQ phIoReq, void **ppvIoReqAlloc,
|
---|
3351 | PDMMEDIAEXIOREQID uIoReqId, uint32_t fFlags)
|
---|
3352 | {
|
---|
3353 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3354 |
|
---|
3355 | AssertReturn(!(fFlags & ~PDMIMEDIAEX_F_VALID), VERR_INVALID_PARAMETER);
|
---|
3356 |
|
---|
3357 | PPDMMEDIAEXIOREQINT pIoReq = (PPDMMEDIAEXIOREQINT)RTMemCacheAlloc(pThis->hIoReqCache);
|
---|
3358 |
|
---|
3359 | if (RT_UNLIKELY(!pIoReq))
|
---|
3360 | return VERR_NO_MEMORY;
|
---|
3361 |
|
---|
3362 | pIoReq->uIoReqId = uIoReqId;
|
---|
3363 | pIoReq->fFlags = fFlags;
|
---|
3364 | pIoReq->pDisk = pThis;
|
---|
3365 | pIoReq->enmState = VDIOREQSTATE_ALLOCATED;
|
---|
3366 | pIoReq->enmType = PDMMEDIAEXIOREQTYPE_INVALID;
|
---|
3367 |
|
---|
3368 | int rc = drvvdMediaExIoReqInsert(pThis, pIoReq);
|
---|
3369 | if (RT_SUCCESS(rc))
|
---|
3370 | {
|
---|
3371 | *phIoReq = pIoReq;
|
---|
3372 | *ppvIoReqAlloc = &pIoReq->abAlloc[0];
|
---|
3373 | }
|
---|
3374 | else
|
---|
3375 | RTMemCacheFree(pThis->hIoReqCache, pIoReq);
|
---|
3376 |
|
---|
3377 | return rc;
|
---|
3378 | }
|
---|
3379 |
|
---|
3380 | /**
|
---|
3381 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqFree}
|
---|
3382 | */
|
---|
3383 | static DECLCALLBACK(int) drvvdIoReqFree(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq)
|
---|
3384 | {
|
---|
3385 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3386 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3387 |
|
---|
3388 | if ( pIoReq->enmState != VDIOREQSTATE_COMPLETED
|
---|
3389 | && pIoReq->enmState != VDIOREQSTATE_ALLOCATED)
|
---|
3390 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3391 |
|
---|
3392 | /* Remove from allocated list. */
|
---|
3393 | int rc = drvvdMediaExIoReqRemove(pThis, pIoReq);
|
---|
3394 | if (RT_FAILURE(rc))
|
---|
3395 | return rc;
|
---|
3396 |
|
---|
3397 | /* Free any associated I/O memory. */
|
---|
3398 | drvvdMediaExIoReqBufFree(pThis, pIoReq);
|
---|
3399 |
|
---|
3400 | /* For discard request discard the range array. */
|
---|
3401 | if ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_DISCARD
|
---|
3402 | && pIoReq->Discard.paRanges)
|
---|
3403 | {
|
---|
3404 | RTMemFree(pIoReq->Discard.paRanges);
|
---|
3405 | pIoReq->Discard.paRanges = NULL;
|
---|
3406 | }
|
---|
3407 |
|
---|
3408 | pIoReq->enmState = VDIOREQSTATE_FREE;
|
---|
3409 | RTMemCacheFree(pThis->hIoReqCache, pIoReq);
|
---|
3410 | return VINF_SUCCESS;
|
---|
3411 | }
|
---|
3412 |
|
---|
3413 | /**
|
---|
3414 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqQueryResidual}
|
---|
3415 | */
|
---|
3416 | static DECLCALLBACK(int) drvvdIoReqQueryResidual(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq, size_t *pcbResidual)
|
---|
3417 | {
|
---|
3418 | RT_NOREF1(pInterface);
|
---|
3419 |
|
---|
3420 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3421 |
|
---|
3422 | if (pIoReq->enmState != VDIOREQSTATE_COMPLETED)
|
---|
3423 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3424 |
|
---|
3425 | if ( pIoReq->enmType != PDMMEDIAEXIOREQTYPE_READ
|
---|
3426 | && pIoReq->enmType != PDMMEDIAEXIOREQTYPE_WRITE
|
---|
3427 | && pIoReq->enmType != PDMMEDIAEXIOREQTYPE_FLUSH)
|
---|
3428 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3429 |
|
---|
3430 | *pcbResidual = 0; /* No data left to transfer always. */
|
---|
3431 | return VINF_SUCCESS;
|
---|
3432 | }
|
---|
3433 |
|
---|
3434 | /**
|
---|
3435 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqQueryXferSize}
|
---|
3436 | */
|
---|
3437 | static DECLCALLBACK(int) drvvdIoReqQueryXferSize(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq, size_t *pcbXfer)
|
---|
3438 | {
|
---|
3439 | int rc = VINF_SUCCESS;
|
---|
3440 | RT_NOREF1(pInterface);
|
---|
3441 |
|
---|
3442 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3443 |
|
---|
3444 | if (pIoReq->enmState != VDIOREQSTATE_COMPLETED)
|
---|
3445 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3446 |
|
---|
3447 | if ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
3448 | || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE)
|
---|
3449 | *pcbXfer = pIoReq->ReadWrite.cbReq;
|
---|
3450 | else if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_FLUSH)
|
---|
3451 | *pcbXfer = 0;
|
---|
3452 | else
|
---|
3453 | rc = VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3454 |
|
---|
3455 | return rc;
|
---|
3456 | }
|
---|
3457 |
|
---|
3458 | /**
|
---|
3459 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqCancelAll}
|
---|
3460 | */
|
---|
3461 | static DECLCALLBACK(int) drvvdIoReqCancelAll(PPDMIMEDIAEX pInterface)
|
---|
3462 | {
|
---|
3463 | int rc = VINF_SUCCESS;
|
---|
3464 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3465 |
|
---|
3466 | LogRel(("VD#%u: Cancelling all active requests\n", pThis->pDrvIns->iInstance));
|
---|
3467 |
|
---|
3468 | for (unsigned idxBin = 0; idxBin < RT_ELEMENTS(pThis->aIoReqAllocBins); idxBin++)
|
---|
3469 | {
|
---|
3470 | rc = RTSemFastMutexRequest(pThis->aIoReqAllocBins[idxBin].hMtxLstIoReqAlloc);
|
---|
3471 | if (RT_SUCCESS(rc))
|
---|
3472 | {
|
---|
3473 | /* Search for I/O request with ID. */
|
---|
3474 | PPDMMEDIAEXIOREQINT pIt;
|
---|
3475 |
|
---|
3476 | RTListForEach(&pThis->aIoReqAllocBins[idxBin].LstIoReqAlloc, pIt, PDMMEDIAEXIOREQINT, NdAllocatedList)
|
---|
3477 | {
|
---|
3478 | drvvdMediaExIoReqCancel(pThis, pIt);
|
---|
3479 | }
|
---|
3480 | RTSemFastMutexRelease(pThis->aIoReqAllocBins[idxBin].hMtxLstIoReqAlloc);
|
---|
3481 | }
|
---|
3482 | }
|
---|
3483 |
|
---|
3484 | return rc;
|
---|
3485 | }
|
---|
3486 |
|
---|
3487 | /**
|
---|
3488 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqCancel}
|
---|
3489 | */
|
---|
3490 | static DECLCALLBACK(int) drvvdIoReqCancel(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQID uIoReqId)
|
---|
3491 | {
|
---|
3492 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3493 | unsigned idxBin = drvvdMediaExIoReqIdHash(uIoReqId);
|
---|
3494 |
|
---|
3495 | LogRel(("VD#%u: Trying to cancel request %#llx\n", pThis->pDrvIns->iInstance, uIoReqId));
|
---|
3496 |
|
---|
3497 | int rc = RTSemFastMutexRequest(pThis->aIoReqAllocBins[idxBin].hMtxLstIoReqAlloc);
|
---|
3498 | if (RT_SUCCESS(rc))
|
---|
3499 | {
|
---|
3500 | /* Search for I/O request with ID. */
|
---|
3501 | PPDMMEDIAEXIOREQINT pIt;
|
---|
3502 | rc = VERR_PDM_MEDIAEX_IOREQID_NOT_FOUND;
|
---|
3503 |
|
---|
3504 | RTListForEach(&pThis->aIoReqAllocBins[idxBin].LstIoReqAlloc, pIt, PDMMEDIAEXIOREQINT, NdAllocatedList)
|
---|
3505 | {
|
---|
3506 | if (pIt->uIoReqId == uIoReqId)
|
---|
3507 | {
|
---|
3508 | if (drvvdMediaExIoReqCancel(pThis, pIt))
|
---|
3509 | rc = VINF_SUCCESS;
|
---|
3510 |
|
---|
3511 | break;
|
---|
3512 | }
|
---|
3513 | }
|
---|
3514 | RTSemFastMutexRelease(pThis->aIoReqAllocBins[idxBin].hMtxLstIoReqAlloc);
|
---|
3515 | }
|
---|
3516 |
|
---|
3517 | return rc;
|
---|
3518 | }
|
---|
3519 |
|
---|
3520 | /**
|
---|
3521 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqRead}
|
---|
3522 | */
|
---|
3523 | static DECLCALLBACK(int) drvvdIoReqRead(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq, uint64_t off, size_t cbRead)
|
---|
3524 | {
|
---|
3525 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3526 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3527 | VDIOREQSTATE enmState = (VDIOREQSTATE)ASMAtomicReadU32((volatile uint32_t *)&pIoReq->enmState);
|
---|
3528 |
|
---|
3529 | if (RT_UNLIKELY(enmState == VDIOREQSTATE_CANCELED))
|
---|
3530 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3531 |
|
---|
3532 | if (RT_UNLIKELY(enmState != VDIOREQSTATE_ALLOCATED))
|
---|
3533 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3534 |
|
---|
3535 | STAM_REL_COUNTER_INC(&pThis->StatReqsSubmitted);
|
---|
3536 | STAM_REL_COUNTER_INC(&pThis->StatReqsRead);
|
---|
3537 |
|
---|
3538 | pIoReq->enmType = PDMMEDIAEXIOREQTYPE_READ;
|
---|
3539 | pIoReq->tsSubmit = RTTimeMilliTS();
|
---|
3540 | pIoReq->ReadWrite.offStart = off;
|
---|
3541 | pIoReq->ReadWrite.cbReq = cbRead;
|
---|
3542 | pIoReq->ReadWrite.cbReqLeft = cbRead;
|
---|
3543 | /* Allocate a suitable I/O buffer for this request. */
|
---|
3544 | int rc = drvvdMediaExIoReqBufAlloc(pThis, pIoReq, cbRead);
|
---|
3545 | if (rc == VINF_SUCCESS)
|
---|
3546 | {
|
---|
3547 | bool fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_ACTIVE, VDIOREQSTATE_ALLOCATED);
|
---|
3548 | if (RT_UNLIKELY(!fXchg))
|
---|
3549 | {
|
---|
3550 | /* Must have been canceled inbetween. */
|
---|
3551 | Assert(pIoReq->enmState == VDIOREQSTATE_CANCELED);
|
---|
3552 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3553 | }
|
---|
3554 | ASMAtomicIncU32(&pThis->cIoReqsActive);
|
---|
3555 |
|
---|
3556 | rc = drvvdMediaExIoReqReadWriteProcess(pThis, pIoReq, false /* fUpNotify */);
|
---|
3557 | }
|
---|
3558 |
|
---|
3559 | return rc;
|
---|
3560 | }
|
---|
3561 |
|
---|
3562 | /**
|
---|
3563 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqWrite}
|
---|
3564 | */
|
---|
3565 | static DECLCALLBACK(int) drvvdIoReqWrite(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq, uint64_t off, size_t cbWrite)
|
---|
3566 | {
|
---|
3567 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3568 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3569 | VDIOREQSTATE enmState = (VDIOREQSTATE)ASMAtomicReadU32((volatile uint32_t *)&pIoReq->enmState);
|
---|
3570 |
|
---|
3571 | if (RT_UNLIKELY(enmState == VDIOREQSTATE_CANCELED))
|
---|
3572 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3573 |
|
---|
3574 | if (RT_UNLIKELY(enmState != VDIOREQSTATE_ALLOCATED))
|
---|
3575 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3576 |
|
---|
3577 | STAM_REL_COUNTER_INC(&pThis->StatReqsSubmitted);
|
---|
3578 | STAM_REL_COUNTER_INC(&pThis->StatReqsWrite);
|
---|
3579 |
|
---|
3580 | pIoReq->enmType = PDMMEDIAEXIOREQTYPE_WRITE;
|
---|
3581 | pIoReq->tsSubmit = RTTimeMilliTS();
|
---|
3582 | pIoReq->ReadWrite.offStart = off;
|
---|
3583 | pIoReq->ReadWrite.cbReq = cbWrite;
|
---|
3584 | pIoReq->ReadWrite.cbReqLeft = cbWrite;
|
---|
3585 | /* Allocate a suitable I/O buffer for this request. */
|
---|
3586 | int rc = drvvdMediaExIoReqBufAlloc(pThis, pIoReq, cbWrite);
|
---|
3587 | if (rc == VINF_SUCCESS)
|
---|
3588 | {
|
---|
3589 | bool fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_ACTIVE, VDIOREQSTATE_ALLOCATED);
|
---|
3590 | if (RT_UNLIKELY(!fXchg))
|
---|
3591 | {
|
---|
3592 | /* Must have been canceled inbetween. */
|
---|
3593 | Assert(pIoReq->enmState == VDIOREQSTATE_CANCELED);
|
---|
3594 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3595 | }
|
---|
3596 | ASMAtomicIncU32(&pThis->cIoReqsActive);
|
---|
3597 |
|
---|
3598 | rc = drvvdMediaExIoReqReadWriteProcess(pThis, pIoReq, false /* fUpNotify */);
|
---|
3599 | }
|
---|
3600 |
|
---|
3601 | return rc;
|
---|
3602 | }
|
---|
3603 |
|
---|
3604 | /**
|
---|
3605 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqFlush}
|
---|
3606 | */
|
---|
3607 | static DECLCALLBACK(int) drvvdIoReqFlush(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq)
|
---|
3608 | {
|
---|
3609 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3610 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3611 | VDIOREQSTATE enmState = (VDIOREQSTATE)ASMAtomicReadU32((volatile uint32_t *)&pIoReq->enmState);
|
---|
3612 |
|
---|
3613 | if (RT_UNLIKELY(enmState == VDIOREQSTATE_CANCELED))
|
---|
3614 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3615 |
|
---|
3616 | if (RT_UNLIKELY(enmState != VDIOREQSTATE_ALLOCATED))
|
---|
3617 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3618 |
|
---|
3619 | STAM_REL_COUNTER_INC(&pThis->StatReqsSubmitted);
|
---|
3620 | STAM_REL_COUNTER_INC(&pThis->StatReqsFlush);
|
---|
3621 |
|
---|
3622 | pIoReq->enmType = PDMMEDIAEXIOREQTYPE_FLUSH;
|
---|
3623 | pIoReq->tsSubmit = RTTimeMilliTS();
|
---|
3624 | bool fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_ACTIVE, VDIOREQSTATE_ALLOCATED);
|
---|
3625 | if (RT_UNLIKELY(!fXchg))
|
---|
3626 | {
|
---|
3627 | /* Must have been canceled inbetween. */
|
---|
3628 | Assert(pIoReq->enmState == VDIOREQSTATE_CANCELED);
|
---|
3629 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3630 | }
|
---|
3631 |
|
---|
3632 | ASMAtomicIncU32(&pThis->cIoReqsActive);
|
---|
3633 | int rc = drvvdMediaExIoReqFlushWrapper(pThis, pIoReq);
|
---|
3634 | if (rc == VERR_VD_ASYNC_IO_IN_PROGRESS)
|
---|
3635 | rc = VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS;
|
---|
3636 | else if (rc == VINF_VD_ASYNC_IO_FINISHED)
|
---|
3637 | rc = VINF_SUCCESS;
|
---|
3638 |
|
---|
3639 | if (rc != VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS)
|
---|
3640 | rc = drvvdMediaExIoReqCompleteWorker(pThis, pIoReq, rc, false /* fUpNotify */);
|
---|
3641 |
|
---|
3642 | return rc;
|
---|
3643 | }
|
---|
3644 |
|
---|
3645 | /**
|
---|
3646 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqDiscard}
|
---|
3647 | */
|
---|
3648 | static DECLCALLBACK(int) drvvdIoReqDiscard(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq, unsigned cRangesMax)
|
---|
3649 | {
|
---|
3650 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3651 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3652 | VDIOREQSTATE enmState = (VDIOREQSTATE)ASMAtomicReadU32((volatile uint32_t *)&pIoReq->enmState);
|
---|
3653 |
|
---|
3654 | if (RT_UNLIKELY(enmState == VDIOREQSTATE_CANCELED))
|
---|
3655 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3656 |
|
---|
3657 | if (RT_UNLIKELY(enmState != VDIOREQSTATE_ALLOCATED))
|
---|
3658 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3659 |
|
---|
3660 | STAM_REL_COUNTER_INC(&pThis->StatReqsSubmitted);
|
---|
3661 | STAM_REL_COUNTER_INC(&pThis->StatReqsDiscard);
|
---|
3662 |
|
---|
3663 | /* Copy the ranges over now, this can be optimized in the future. */
|
---|
3664 | pIoReq->Discard.paRanges = (PRTRANGE)RTMemAllocZ(cRangesMax * sizeof(RTRANGE));
|
---|
3665 | if (RT_UNLIKELY(!pIoReq->Discard.paRanges))
|
---|
3666 | return VERR_NO_MEMORY;
|
---|
3667 |
|
---|
3668 | int rc = pThis->pDrvMediaExPort->pfnIoReqQueryDiscardRanges(pThis->pDrvMediaExPort, pIoReq, &pIoReq->abAlloc[0],
|
---|
3669 | 0, cRangesMax, pIoReq->Discard.paRanges,
|
---|
3670 | &pIoReq->Discard.cRanges);
|
---|
3671 | if (RT_SUCCESS(rc))
|
---|
3672 | {
|
---|
3673 | pIoReq->enmType = PDMMEDIAEXIOREQTYPE_DISCARD;
|
---|
3674 | pIoReq->tsSubmit = RTTimeMilliTS();
|
---|
3675 | bool fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_ACTIVE, VDIOREQSTATE_ALLOCATED);
|
---|
3676 | if (RT_UNLIKELY(!fXchg))
|
---|
3677 | {
|
---|
3678 | /* Must have been canceled inbetween. */
|
---|
3679 | Assert(pIoReq->enmState == VDIOREQSTATE_CANCELED);
|
---|
3680 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3681 | }
|
---|
3682 |
|
---|
3683 | ASMAtomicIncU32(&pThis->cIoReqsActive);
|
---|
3684 | rc = drvvdMediaExIoReqDiscardWrapper(pThis, pIoReq);
|
---|
3685 | if (rc == VERR_VD_ASYNC_IO_IN_PROGRESS)
|
---|
3686 | rc = VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS;
|
---|
3687 | else if (rc == VINF_VD_ASYNC_IO_FINISHED)
|
---|
3688 | rc = VINF_SUCCESS;
|
---|
3689 |
|
---|
3690 | if (rc != VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS)
|
---|
3691 | rc = drvvdMediaExIoReqCompleteWorker(pThis, pIoReq, rc, false /* fUpNotify */);
|
---|
3692 | }
|
---|
3693 |
|
---|
3694 | return rc;
|
---|
3695 | }
|
---|
3696 |
|
---|
3697 | /**
|
---|
3698 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqSendScsiCmd}
|
---|
3699 | */
|
---|
3700 | static DECLCALLBACK(int) drvvdIoReqSendScsiCmd(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq,
|
---|
3701 | uint32_t uLun, const uint8_t *pbCdb, size_t cbCdb,
|
---|
3702 | PDMMEDIAEXIOREQSCSITXDIR enmTxDir, PDMMEDIAEXIOREQSCSITXDIR *penmTxDirRet,
|
---|
3703 | size_t cbBuf, uint8_t *pabSense, size_t cbSense, size_t *pcbSenseRet,
|
---|
3704 | uint8_t *pu8ScsiSts, uint32_t cTimeoutMillies)
|
---|
3705 | {
|
---|
3706 | RT_NOREF12(pInterface, uLun, pbCdb, cbCdb, enmTxDir, penmTxDirRet, cbBuf, pabSense, cbSense, pcbSenseRet, pu8ScsiSts, cTimeoutMillies);
|
---|
3707 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3708 | VDIOREQSTATE enmState = (VDIOREQSTATE)ASMAtomicReadU32((volatile uint32_t *)&pIoReq->enmState);
|
---|
3709 |
|
---|
3710 | if (RT_UNLIKELY(enmState == VDIOREQSTATE_CANCELED))
|
---|
3711 | return VERR_PDM_MEDIAEX_IOREQ_CANCELED;
|
---|
3712 |
|
---|
3713 | if (RT_UNLIKELY(enmState != VDIOREQSTATE_ALLOCATED))
|
---|
3714 | return VERR_PDM_MEDIAEX_IOREQ_INVALID_STATE;
|
---|
3715 |
|
---|
3716 | return VERR_NOT_SUPPORTED;
|
---|
3717 | }
|
---|
3718 |
|
---|
3719 | /**
|
---|
3720 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqGetActiveCount}
|
---|
3721 | */
|
---|
3722 | static DECLCALLBACK(uint32_t) drvvdIoReqGetActiveCount(PPDMIMEDIAEX pInterface)
|
---|
3723 | {
|
---|
3724 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3725 | return ASMAtomicReadU32(&pThis->cIoReqsActive);
|
---|
3726 | }
|
---|
3727 |
|
---|
3728 | /**
|
---|
3729 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqGetSuspendedCount}
|
---|
3730 | */
|
---|
3731 | static DECLCALLBACK(uint32_t) drvvdIoReqGetSuspendedCount(PPDMIMEDIAEX pInterface)
|
---|
3732 | {
|
---|
3733 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3734 |
|
---|
3735 | AssertReturn(!drvvdMediaExIoReqIsVmRunning(pThis), 0);
|
---|
3736 |
|
---|
3737 | uint32_t cIoReqSuspended = 0;
|
---|
3738 | PPDMMEDIAEXIOREQINT pIoReq;
|
---|
3739 | RTCritSectEnter(&pThis->CritSectIoReqRedo);
|
---|
3740 | RTListForEach(&pThis->LstIoReqRedo, pIoReq, PDMMEDIAEXIOREQINT, NdLstWait)
|
---|
3741 | {
|
---|
3742 | cIoReqSuspended++;
|
---|
3743 | }
|
---|
3744 | RTCritSectLeave(&pThis->CritSectIoReqRedo);
|
---|
3745 |
|
---|
3746 | return cIoReqSuspended + pThis->cIoReqsWaiting;
|
---|
3747 | }
|
---|
3748 |
|
---|
3749 | /**
|
---|
3750 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqQuerySuspendedStart}
|
---|
3751 | */
|
---|
3752 | static DECLCALLBACK(int) drvvdIoReqQuerySuspendedStart(PPDMIMEDIAEX pInterface, PPDMMEDIAEXIOREQ phIoReq,
|
---|
3753 | void **ppvIoReqAlloc)
|
---|
3754 | {
|
---|
3755 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3756 |
|
---|
3757 | AssertReturn(!drvvdMediaExIoReqIsVmRunning(pThis), VERR_INVALID_STATE);
|
---|
3758 | AssertReturn(!( RTListIsEmpty(&pThis->LstIoReqRedo)
|
---|
3759 | && RTListIsEmpty(&pThis->LstIoReqIoBufWait)), VERR_NOT_FOUND);
|
---|
3760 |
|
---|
3761 | PRTLISTANCHOR pLst;
|
---|
3762 | PRTCRITSECT pCritSect;
|
---|
3763 | if (!RTListIsEmpty(&pThis->LstIoReqRedo))
|
---|
3764 | {
|
---|
3765 | pLst = &pThis->LstIoReqRedo;
|
---|
3766 | pCritSect = &pThis->CritSectIoReqRedo;
|
---|
3767 | }
|
---|
3768 | else
|
---|
3769 | {
|
---|
3770 | pLst = &pThis->LstIoReqIoBufWait;
|
---|
3771 | pCritSect = &pThis->CritSectIoReqsIoBufWait;
|
---|
3772 | }
|
---|
3773 |
|
---|
3774 | RTCritSectEnter(pCritSect);
|
---|
3775 | PPDMMEDIAEXIOREQINT pIoReq = RTListGetFirst(pLst, PDMMEDIAEXIOREQINT, NdLstWait);
|
---|
3776 | *phIoReq = pIoReq;
|
---|
3777 | *ppvIoReqAlloc = &pIoReq->abAlloc[0];
|
---|
3778 | RTCritSectLeave(pCritSect);
|
---|
3779 |
|
---|
3780 | return VINF_SUCCESS;
|
---|
3781 | }
|
---|
3782 |
|
---|
3783 | /**
|
---|
3784 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqQuerySuspendedNext}
|
---|
3785 | */
|
---|
3786 | static DECLCALLBACK(int) drvvdIoReqQuerySuspendedNext(PPDMIMEDIAEX pInterface, PDMMEDIAEXIOREQ hIoReq,
|
---|
3787 | PPDMMEDIAEXIOREQ phIoReqNext, void **ppvIoReqAllocNext)
|
---|
3788 | {
|
---|
3789 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3790 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3791 |
|
---|
3792 | AssertReturn(!drvvdMediaExIoReqIsVmRunning(pThis), VERR_INVALID_STATE);
|
---|
3793 | AssertPtrReturn(pIoReq, VERR_INVALID_HANDLE);
|
---|
3794 | AssertReturn( ( pIoReq->enmState == VDIOREQSTATE_SUSPENDED
|
---|
3795 | && ( !RTListNodeIsLast(&pThis->LstIoReqRedo, &pIoReq->NdLstWait)
|
---|
3796 | || !RTListIsEmpty(&pThis->LstIoReqIoBufWait)))
|
---|
3797 | || ( pIoReq->enmState == VDIOREQSTATE_ALLOCATED
|
---|
3798 | && !RTListNodeIsLast(&pThis->LstIoReqIoBufWait, &pIoReq->NdLstWait)), VERR_NOT_FOUND);
|
---|
3799 |
|
---|
3800 | PPDMMEDIAEXIOREQINT pIoReqNext;
|
---|
3801 | if (pIoReq->enmState == VDIOREQSTATE_SUSPENDED)
|
---|
3802 | {
|
---|
3803 | if (!RTListNodeIsLast(&pThis->LstIoReqRedo, &pIoReq->NdLstWait))
|
---|
3804 | {
|
---|
3805 | RTCritSectEnter(&pThis->CritSectIoReqRedo);
|
---|
3806 | pIoReqNext = RTListNodeGetNext(&pIoReq->NdLstWait, PDMMEDIAEXIOREQINT, NdLstWait);
|
---|
3807 | RTCritSectLeave(&pThis->CritSectIoReqRedo);
|
---|
3808 | }
|
---|
3809 | else
|
---|
3810 | {
|
---|
3811 | RTCritSectEnter(&pThis->CritSectIoReqsIoBufWait);
|
---|
3812 | pIoReqNext = RTListGetFirst(&pThis->LstIoReqIoBufWait, PDMMEDIAEXIOREQINT, NdLstWait);
|
---|
3813 | RTCritSectLeave(&pThis->CritSectIoReqsIoBufWait);
|
---|
3814 | }
|
---|
3815 | }
|
---|
3816 | else
|
---|
3817 | {
|
---|
3818 | RTCritSectEnter(&pThis->CritSectIoReqsIoBufWait);
|
---|
3819 | pIoReqNext = RTListNodeGetNext(&pIoReq->NdLstWait, PDMMEDIAEXIOREQINT, NdLstWait);
|
---|
3820 | RTCritSectLeave(&pThis->CritSectIoReqsIoBufWait);
|
---|
3821 | }
|
---|
3822 |
|
---|
3823 | *phIoReqNext = pIoReqNext;
|
---|
3824 | *ppvIoReqAllocNext = &pIoReqNext->abAlloc[0];
|
---|
3825 |
|
---|
3826 | return VINF_SUCCESS;
|
---|
3827 | }
|
---|
3828 |
|
---|
3829 | /**
|
---|
3830 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqSuspendedSave}
|
---|
3831 | */
|
---|
3832 | static DECLCALLBACK(int) drvvdIoReqSuspendedSave(PPDMIMEDIAEX pInterface, PSSMHANDLE pSSM, PDMMEDIAEXIOREQ hIoReq)
|
---|
3833 | {
|
---|
3834 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3835 | PCPDMDRVHLPR3 pHlp = pThis->pDrvIns->pHlpR3;
|
---|
3836 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3837 |
|
---|
3838 | AssertReturn(!drvvdMediaExIoReqIsVmRunning(pThis), VERR_INVALID_STATE);
|
---|
3839 | AssertPtrReturn(pIoReq, VERR_INVALID_HANDLE);
|
---|
3840 | AssertReturn( pIoReq->enmState == VDIOREQSTATE_SUSPENDED
|
---|
3841 | || pIoReq->enmState == VDIOREQSTATE_ALLOCATED, VERR_INVALID_STATE);
|
---|
3842 |
|
---|
3843 | pHlp->pfnSSMPutU32(pSSM, DRVVD_IOREQ_SAVED_STATE_VERSION);
|
---|
3844 | pHlp->pfnSSMPutU32(pSSM, (uint32_t)pIoReq->enmType);
|
---|
3845 | pHlp->pfnSSMPutU32(pSSM, pIoReq->uIoReqId);
|
---|
3846 | pHlp->pfnSSMPutU32(pSSM, pIoReq->fFlags);
|
---|
3847 | if ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
3848 | || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE)
|
---|
3849 | {
|
---|
3850 | pHlp->pfnSSMPutU64(pSSM, pIoReq->ReadWrite.offStart);
|
---|
3851 | pHlp->pfnSSMPutU64(pSSM, pIoReq->ReadWrite.cbReq);
|
---|
3852 | pHlp->pfnSSMPutU64(pSSM, pIoReq->ReadWrite.cbReqLeft);
|
---|
3853 | }
|
---|
3854 | else if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_DISCARD)
|
---|
3855 | {
|
---|
3856 | pHlp->pfnSSMPutU32(pSSM, pIoReq->Discard.cRanges);
|
---|
3857 | for (unsigned i = 0; i < pIoReq->Discard.cRanges; i++)
|
---|
3858 | {
|
---|
3859 | pHlp->pfnSSMPutU64(pSSM, pIoReq->Discard.paRanges[i].offStart);
|
---|
3860 | pHlp->pfnSSMPutU64(pSSM, pIoReq->Discard.paRanges[i].cbRange);
|
---|
3861 | }
|
---|
3862 | }
|
---|
3863 |
|
---|
3864 | return pHlp->pfnSSMPutU32(pSSM, UINT32_MAX); /* sanity/terminator */
|
---|
3865 | }
|
---|
3866 |
|
---|
3867 | /**
|
---|
3868 | * @interface_method_impl{PDMIMEDIAEX,pfnIoReqSuspendedLoad}
|
---|
3869 | */
|
---|
3870 | static DECLCALLBACK(int) drvvdIoReqSuspendedLoad(PPDMIMEDIAEX pInterface, PSSMHANDLE pSSM, PDMMEDIAEXIOREQ hIoReq)
|
---|
3871 | {
|
---|
3872 | PVBOXDISK pThis = RT_FROM_MEMBER(pInterface, VBOXDISK, IMediaEx);
|
---|
3873 | PCPDMDRVHLPR3 pHlp = pThis->pDrvIns->pHlpR3;
|
---|
3874 | PPDMMEDIAEXIOREQINT pIoReq = hIoReq;
|
---|
3875 |
|
---|
3876 | AssertReturn(!drvvdMediaExIoReqIsVmRunning(pThis), VERR_INVALID_STATE);
|
---|
3877 | AssertPtrReturn(pIoReq, VERR_INVALID_HANDLE);
|
---|
3878 | AssertReturn(pIoReq->enmState == VDIOREQSTATE_ALLOCATED, VERR_INVALID_STATE);
|
---|
3879 |
|
---|
3880 | uint32_t u32;
|
---|
3881 | uint64_t u64;
|
---|
3882 | int rc = VINF_SUCCESS;
|
---|
3883 | bool fPlaceOnRedoList = true;
|
---|
3884 |
|
---|
3885 | pHlp->pfnSSMGetU32(pSSM, &u32);
|
---|
3886 | if (u32 <= DRVVD_IOREQ_SAVED_STATE_VERSION)
|
---|
3887 | {
|
---|
3888 | pHlp->pfnSSMGetU32(pSSM, &u32);
|
---|
3889 | AssertReturn( u32 == PDMMEDIAEXIOREQTYPE_WRITE
|
---|
3890 | || u32 == PDMMEDIAEXIOREQTYPE_READ
|
---|
3891 | || u32 == PDMMEDIAEXIOREQTYPE_DISCARD
|
---|
3892 | || u32 == PDMMEDIAEXIOREQTYPE_FLUSH,
|
---|
3893 | VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
---|
3894 | pIoReq->enmType = (PDMMEDIAEXIOREQTYPE)u32;
|
---|
3895 |
|
---|
3896 | pHlp->pfnSSMGetU32(pSSM, &u32);
|
---|
3897 | AssertReturn(u32 == pIoReq->uIoReqId, VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
---|
3898 |
|
---|
3899 | pHlp->pfnSSMGetU32(pSSM, &u32);
|
---|
3900 | AssertReturn(u32 == pIoReq->fFlags, VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
---|
3901 |
|
---|
3902 | if ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
3903 | || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE)
|
---|
3904 | {
|
---|
3905 | pHlp->pfnSSMGetU64(pSSM, &pIoReq->ReadWrite.offStart);
|
---|
3906 | pHlp->pfnSSMGetU64(pSSM, &u64);
|
---|
3907 | pIoReq->ReadWrite.cbReq = (size_t)u64;
|
---|
3908 | pHlp->pfnSSMGetU64(pSSM, &u64);
|
---|
3909 | pIoReq->ReadWrite.cbReqLeft = (size_t)u64;
|
---|
3910 |
|
---|
3911 | /*
|
---|
3912 | * Try to allocate enough I/O buffer, if this fails for some reason put it onto the
|
---|
3913 | * waiting list instead of the redo list.
|
---|
3914 | */
|
---|
3915 | pIoReq->ReadWrite.cbIoBuf = 0;
|
---|
3916 | rc = IOBUFMgrAllocBuf(pThis->hIoBufMgr, &pIoReq->ReadWrite.IoBuf, pIoReq->ReadWrite.cbReqLeft,
|
---|
3917 | &pIoReq->ReadWrite.cbIoBuf);
|
---|
3918 | if (rc == VERR_NO_MEMORY)
|
---|
3919 | {
|
---|
3920 | pIoReq->enmState = VDIOREQSTATE_ALLOCATED;
|
---|
3921 | ASMAtomicIncU32(&pThis->cIoReqsWaiting);
|
---|
3922 | RTListAppend(&pThis->LstIoReqIoBufWait, &pIoReq->NdLstWait);
|
---|
3923 | fPlaceOnRedoList = false;
|
---|
3924 | rc = VINF_SUCCESS;
|
---|
3925 | }
|
---|
3926 | else
|
---|
3927 | {
|
---|
3928 | pIoReq->ReadWrite.fDirectBuf = false;
|
---|
3929 | pIoReq->ReadWrite.pSgBuf = &pIoReq->ReadWrite.IoBuf.SgBuf;
|
---|
3930 | }
|
---|
3931 | }
|
---|
3932 | else if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_DISCARD)
|
---|
3933 | {
|
---|
3934 | rc = pHlp->pfnSSMGetU32(pSSM, &pIoReq->Discard.cRanges);
|
---|
3935 | if (RT_SUCCESS(rc))
|
---|
3936 | {
|
---|
3937 | pIoReq->Discard.paRanges = (PRTRANGE)RTMemAllocZ(pIoReq->Discard.cRanges * sizeof(RTRANGE));
|
---|
3938 | if (RT_LIKELY(pIoReq->Discard.paRanges))
|
---|
3939 | {
|
---|
3940 | for (unsigned i = 0; i < pIoReq->Discard.cRanges; i++)
|
---|
3941 | {
|
---|
3942 | pHlp->pfnSSMGetU64(pSSM, &pIoReq->Discard.paRanges[i].offStart);
|
---|
3943 | pHlp->pfnSSMGetU64(pSSM, &u64);
|
---|
3944 | pIoReq->Discard.paRanges[i].cbRange = (size_t)u64;
|
---|
3945 | }
|
---|
3946 | }
|
---|
3947 | else
|
---|
3948 | rc = VERR_NO_MEMORY;
|
---|
3949 | }
|
---|
3950 | }
|
---|
3951 |
|
---|
3952 | if (RT_SUCCESS(rc))
|
---|
3953 | rc = pHlp->pfnSSMGetU32(pSSM, &u32); /* sanity/terminator */
|
---|
3954 | if (RT_SUCCESS(rc))
|
---|
3955 | AssertReturn(u32 == UINT32_MAX, VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
|
---|
3956 | if ( RT_SUCCESS(rc)
|
---|
3957 | && fPlaceOnRedoList)
|
---|
3958 | {
|
---|
3959 | /* Mark as suspended */
|
---|
3960 | pIoReq->enmState = VDIOREQSTATE_SUSPENDED;
|
---|
3961 |
|
---|
3962 | /* Link into suspended list so it gets kicked off again when we resume. */
|
---|
3963 | RTCritSectEnter(&pThis->CritSectIoReqRedo);
|
---|
3964 | RTListAppend(&pThis->LstIoReqRedo, &pIoReq->NdLstWait);
|
---|
3965 | RTCritSectLeave(&pThis->CritSectIoReqRedo);
|
---|
3966 | }
|
---|
3967 | }
|
---|
3968 |
|
---|
3969 | return rc;
|
---|
3970 | }
|
---|
3971 |
|
---|
3972 | /**
|
---|
3973 | * Loads all configured plugins.
|
---|
3974 | *
|
---|
3975 | * @returns VBox status code.
|
---|
3976 | * @param pDrvIns Driver instance data.
|
---|
3977 | * @param pCfg CFGM node holding plugin list.
|
---|
3978 | */
|
---|
3979 | static int drvvdLoadPlugins(PPDMDRVINS pDrvIns, PCFGMNODE pCfg)
|
---|
3980 | {
|
---|
3981 | PCPDMDRVHLPR3 pHlp = pDrvIns->pHlpR3;
|
---|
3982 |
|
---|
3983 | PCFGMNODE pCfgPlugins = pHlp->pfnCFGMGetChild(pCfg, "Plugins");
|
---|
3984 |
|
---|
3985 | if (pCfgPlugins)
|
---|
3986 | {
|
---|
3987 | PCFGMNODE pPluginCur = pHlp->pfnCFGMGetFirstChild(pCfgPlugins);
|
---|
3988 | while (pPluginCur)
|
---|
3989 | {
|
---|
3990 | int rc = VINF_SUCCESS;
|
---|
3991 | char *pszPluginFilename = NULL;
|
---|
3992 | rc = pHlp->pfnCFGMQueryStringAlloc(pPluginCur, "Path", &pszPluginFilename);
|
---|
3993 | if (RT_SUCCESS(rc))
|
---|
3994 | rc = VDPluginLoadFromFilename(pszPluginFilename);
|
---|
3995 |
|
---|
3996 | if (RT_FAILURE(rc))
|
---|
3997 | LogRel(("VD: Failed to load plugin '%s' with %Rrc, continuing\n", pszPluginFilename, rc));
|
---|
3998 |
|
---|
3999 | pPluginCur = pHlp->pfnCFGMGetNextChild(pPluginCur);
|
---|
4000 | }
|
---|
4001 | }
|
---|
4002 |
|
---|
4003 | return VINF_SUCCESS;
|
---|
4004 | }
|
---|
4005 |
|
---|
4006 |
|
---|
4007 | /**
|
---|
4008 | * Sets up the disk filter chain.
|
---|
4009 | *
|
---|
4010 | * @returns VBox status code.
|
---|
4011 | * @param pThis The disk instance.
|
---|
4012 | * @param pCfg CFGM node holding the filter parameters.
|
---|
4013 | */
|
---|
4014 | static int drvvdSetupFilters(PVBOXDISK pThis, PCFGMNODE pCfg)
|
---|
4015 | {
|
---|
4016 | PCPDMDRVHLPR3 pHlp = pThis->pDrvIns->pHlpR3;
|
---|
4017 | int rc = VINF_SUCCESS;
|
---|
4018 |
|
---|
4019 | PCFGMNODE pCfgFilter = pHlp->pfnCFGMGetChild(pCfg, "Filters");
|
---|
4020 | if (pCfgFilter)
|
---|
4021 | {
|
---|
4022 | PCFGMNODE pCfgFilterConfig = pHlp->pfnCFGMGetChild(pCfgFilter, "VDConfig");
|
---|
4023 | char *pszFilterName = NULL;
|
---|
4024 | VDINTERFACECONFIG VDIfConfig;
|
---|
4025 | PVDINTERFACE pVDIfsFilter = NULL;
|
---|
4026 |
|
---|
4027 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfgFilter, "FilterName", &pszFilterName);
|
---|
4028 | if (RT_SUCCESS(rc))
|
---|
4029 | {
|
---|
4030 | VDCFGNODE CfgNode;
|
---|
4031 |
|
---|
4032 | VDIfConfig.pfnAreKeysValid = drvvdCfgAreKeysValid;
|
---|
4033 | VDIfConfig.pfnQuerySize = drvvdCfgQuerySize;
|
---|
4034 | VDIfConfig.pfnQuery = drvvdCfgQuery;
|
---|
4035 | VDIfConfig.pfnQueryBytes = drvvdCfgQueryBytes;
|
---|
4036 |
|
---|
4037 | CfgNode.pHlp = pThis->pDrvIns->pHlpR3;
|
---|
4038 | CfgNode.pCfgNode = pCfgFilterConfig;
|
---|
4039 | rc = VDInterfaceAdd(&VDIfConfig.Core, "DrvVD_Config", VDINTERFACETYPE_CONFIG,
|
---|
4040 | &CfgNode, sizeof(VDINTERFACECONFIG), &pVDIfsFilter);
|
---|
4041 | AssertRC(rc);
|
---|
4042 |
|
---|
4043 | rc = VDFilterAdd(pThis->pDisk, pszFilterName, VD_FILTER_FLAGS_DEFAULT, pVDIfsFilter);
|
---|
4044 |
|
---|
4045 | PDMDrvHlpMMHeapFree(pThis->pDrvIns, pszFilterName);
|
---|
4046 | }
|
---|
4047 | }
|
---|
4048 |
|
---|
4049 | return rc;
|
---|
4050 | }
|
---|
4051 |
|
---|
4052 |
|
---|
4053 | /**
|
---|
4054 | * Translates a PDMMEDIATYPE value into a string.
|
---|
4055 | *
|
---|
4056 | * @returns Read only string.
|
---|
4057 | * @param enmType The type value.
|
---|
4058 | */
|
---|
4059 | static const char *drvvdGetTypeName(PDMMEDIATYPE enmType)
|
---|
4060 | {
|
---|
4061 | switch (enmType)
|
---|
4062 | {
|
---|
4063 | case PDMMEDIATYPE_ERROR: return "ERROR";
|
---|
4064 | case PDMMEDIATYPE_FLOPPY_360: return "FLOPPY_360";
|
---|
4065 | case PDMMEDIATYPE_FLOPPY_720: return "FLOPPY_720";
|
---|
4066 | case PDMMEDIATYPE_FLOPPY_1_20: return "FLOPPY_1_20";
|
---|
4067 | case PDMMEDIATYPE_FLOPPY_1_44: return "FLOPPY_1_44";
|
---|
4068 | case PDMMEDIATYPE_FLOPPY_2_88: return "FLOPPY_2_88";
|
---|
4069 | case PDMMEDIATYPE_FLOPPY_FAKE_15_6: return "FLOPPY_FAKE_15_6";
|
---|
4070 | case PDMMEDIATYPE_FLOPPY_FAKE_63_5: return "FLOPPY_FAKE_63_5";
|
---|
4071 | case PDMMEDIATYPE_CDROM: return "CDROM";
|
---|
4072 | case PDMMEDIATYPE_DVD: return "DVD";
|
---|
4073 | case PDMMEDIATYPE_HARD_DISK: return "HARD_DISK";
|
---|
4074 | default: return "Unknown";
|
---|
4075 | }
|
---|
4076 | }
|
---|
4077 |
|
---|
4078 | /**
|
---|
4079 | * Returns the appropriate PDMMEDIATYPE for t he given string.
|
---|
4080 | *
|
---|
4081 | * @returns PDMMEDIATYPE
|
---|
4082 | * @param pszType The string representation of the media type.
|
---|
4083 | */
|
---|
4084 | static PDMMEDIATYPE drvvdGetMediaTypeFromString(const char *pszType)
|
---|
4085 | {
|
---|
4086 | PDMMEDIATYPE enmType = PDMMEDIATYPE_ERROR;
|
---|
4087 |
|
---|
4088 | if (!strcmp(pszType, "HardDisk"))
|
---|
4089 | enmType = PDMMEDIATYPE_HARD_DISK;
|
---|
4090 | else if (!strcmp(pszType, "DVD"))
|
---|
4091 | enmType = PDMMEDIATYPE_DVD;
|
---|
4092 | else if (!strcmp(pszType, "CDROM"))
|
---|
4093 | enmType = PDMMEDIATYPE_CDROM;
|
---|
4094 | else if (!strcmp(pszType, "Floppy 2.88"))
|
---|
4095 | enmType = PDMMEDIATYPE_FLOPPY_2_88;
|
---|
4096 | else if (!strcmp(pszType, "Floppy 1.44"))
|
---|
4097 | enmType = PDMMEDIATYPE_FLOPPY_1_44;
|
---|
4098 | else if (!strcmp(pszType, "Floppy 1.20"))
|
---|
4099 | enmType = PDMMEDIATYPE_FLOPPY_1_20;
|
---|
4100 | else if (!strcmp(pszType, "Floppy 720"))
|
---|
4101 | enmType = PDMMEDIATYPE_FLOPPY_720;
|
---|
4102 | else if (!strcmp(pszType, "Floppy 360"))
|
---|
4103 | enmType = PDMMEDIATYPE_FLOPPY_360;
|
---|
4104 | else if (!strcmp(pszType, "Floppy 15.6"))
|
---|
4105 | enmType = PDMMEDIATYPE_FLOPPY_FAKE_15_6;
|
---|
4106 | else if (!strcmp(pszType, "Floppy 63.5"))
|
---|
4107 | enmType = PDMMEDIATYPE_FLOPPY_FAKE_63_5;
|
---|
4108 |
|
---|
4109 | return enmType;
|
---|
4110 | }
|
---|
4111 |
|
---|
4112 | /**
|
---|
4113 | * Converts PDMMEDIATYPE to the appropriate VDTYPE.
|
---|
4114 | *
|
---|
4115 | * @returns The VDTYPE.
|
---|
4116 | * @param enmType The PDMMEDIATYPE to convert from.
|
---|
4117 | */
|
---|
4118 | static VDTYPE drvvdGetVDFromMediaType(PDMMEDIATYPE enmType)
|
---|
4119 | {
|
---|
4120 | if (PDMMEDIATYPE_IS_FLOPPY(enmType))
|
---|
4121 | return VDTYPE_FLOPPY;
|
---|
4122 | else if (enmType == PDMMEDIATYPE_DVD || enmType == PDMMEDIATYPE_CDROM)
|
---|
4123 | return VDTYPE_OPTICAL_DISC;
|
---|
4124 | else if (enmType == PDMMEDIATYPE_HARD_DISK)
|
---|
4125 | return VDTYPE_HDD;
|
---|
4126 |
|
---|
4127 | AssertMsgFailed(("Invalid media type %d{%s} given!\n", enmType, drvvdGetTypeName(enmType)));
|
---|
4128 | return VDTYPE_HDD;
|
---|
4129 | }
|
---|
4130 |
|
---|
4131 | /**
|
---|
4132 | * Registers statistics associated with the given media driver.
|
---|
4133 | *
|
---|
4134 | * @returns VBox status code.
|
---|
4135 | * @param pThis The media driver instance.
|
---|
4136 | */
|
---|
4137 | static int drvvdStatsRegister(PVBOXDISK pThis)
|
---|
4138 | {
|
---|
4139 | PPDMDRVINS pDrvIns = pThis->pDrvIns;
|
---|
4140 |
|
---|
4141 | /*
|
---|
4142 | * Figure out where to place the stats.
|
---|
4143 | */
|
---|
4144 | uint32_t iInstance = 0;
|
---|
4145 | uint32_t iLUN = 0;
|
---|
4146 | const char *pcszController = NULL;
|
---|
4147 | int rc = pThis->pDrvMediaPort->pfnQueryDeviceLocation(pThis->pDrvMediaPort, &pcszController, &iInstance, &iLUN);
|
---|
4148 | AssertRCReturn(rc, rc);
|
---|
4149 |
|
---|
4150 | /*
|
---|
4151 | * Compose the prefix for the statistics to reduce the amount of repetition below.
|
---|
4152 | * The /Public/ bits are official and used by session info in the GUI.
|
---|
4153 | */
|
---|
4154 | char szCtrlUpper[32];
|
---|
4155 | rc = RTStrCopy(szCtrlUpper, sizeof(szCtrlUpper), pcszController);
|
---|
4156 | AssertRCReturn(rc, rc);
|
---|
4157 |
|
---|
4158 | RTStrToUpper(szCtrlUpper);
|
---|
4159 | char szPrefix[128];
|
---|
4160 | RTStrPrintf(szPrefix, sizeof(szPrefix), "/Public/Storage/%s%u/Port%u", szCtrlUpper, iInstance, iLUN);
|
---|
4161 |
|
---|
4162 | /*
|
---|
4163 | * Do the registrations.
|
---|
4164 | */
|
---|
4165 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatQueryBufAttempts, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT,
|
---|
4166 | "Number of attempts to query a direct buffer.", "%s/QueryBufAttempts", szPrefix);
|
---|
4167 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatQueryBufSuccess, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT,
|
---|
4168 | "Number of succeeded attempts to query a direct buffer.", "%s/QueryBufSuccess", szPrefix);
|
---|
4169 |
|
---|
4170 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatBytesRead, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_BYTES,
|
---|
4171 | "Amount of data read.", "%s/BytesRead", szPrefix);
|
---|
4172 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatBytesWritten, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_BYTES,
|
---|
4173 | "Amount of data written.", "%s/BytesWritten", szPrefix);
|
---|
4174 |
|
---|
4175 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReqsSubmitted, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_COUNT,
|
---|
4176 | "Number of I/O requests submitted.", "%s/ReqsSubmitted", szPrefix);
|
---|
4177 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReqsFailed, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_COUNT,
|
---|
4178 | "Number of I/O requests failed.", "%s/ReqsFailed", szPrefix);
|
---|
4179 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReqsSucceeded, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_COUNT,
|
---|
4180 | "Number of I/O requests succeeded.", "%s/ReqsSucceeded", szPrefix);
|
---|
4181 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReqsFlush, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_COUNT,
|
---|
4182 | "Number of flush I/O requests submitted.", "%s/ReqsFlush", szPrefix);
|
---|
4183 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReqsWrite, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_COUNT,
|
---|
4184 | "Number of write I/O requests submitted.", "%s/ReqsWrite", szPrefix);
|
---|
4185 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReqsRead, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_COUNT,
|
---|
4186 | "Number of read I/O requests submitted.", "%s/ReqsRead", szPrefix);
|
---|
4187 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReqsDiscard, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_COUNT,
|
---|
4188 | "Number of discard I/O requests submitted.", "%s/ReqsDiscard", szPrefix);
|
---|
4189 |
|
---|
4190 | PDMDrvHlpSTAMRegisterF(pDrvIns, &pThis->StatReqsPerSec, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
|
---|
4191 | "Number of processed I/O requests per second.", "%s/ReqsPerSec", szPrefix);
|
---|
4192 |
|
---|
4193 | return VINF_SUCCESS;
|
---|
4194 | }
|
---|
4195 |
|
---|
4196 | /**
|
---|
4197 | * Deregisters statistics associated with the given media driver.
|
---|
4198 | *
|
---|
4199 | * @param pThis The media driver instance.
|
---|
4200 | */
|
---|
4201 | static void drvvdStatsDeregister(PVBOXDISK pThis)
|
---|
4202 | {
|
---|
4203 | PPDMDRVINS pDrvIns = pThis->pDrvIns;
|
---|
4204 |
|
---|
4205 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatQueryBufAttempts);
|
---|
4206 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatQueryBufSuccess);
|
---|
4207 |
|
---|
4208 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatBytesRead);
|
---|
4209 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatBytesWritten);
|
---|
4210 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReqsSubmitted);
|
---|
4211 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReqsFailed);
|
---|
4212 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReqsSucceeded);
|
---|
4213 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReqsFlush);
|
---|
4214 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReqsWrite);
|
---|
4215 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReqsRead);
|
---|
4216 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReqsDiscard);
|
---|
4217 | PDMDrvHlpSTAMDeregister(pDrvIns, &pThis->StatReqsPerSec);
|
---|
4218 | }
|
---|
4219 |
|
---|
4220 |
|
---|
4221 | /*********************************************************************************************************************************
|
---|
4222 | * Base interface methods *
|
---|
4223 | *********************************************************************************************************************************/
|
---|
4224 |
|
---|
4225 | /**
|
---|
4226 | * @interface_method_impl{PDMIBASE,pfnQueryInterface}
|
---|
4227 | */
|
---|
4228 | static DECLCALLBACK(void *) drvvdQueryInterface(PPDMIBASE pInterface, const char *pszIID)
|
---|
4229 | {
|
---|
4230 | PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
|
---|
4231 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4232 |
|
---|
4233 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDrvIns->IBase);
|
---|
4234 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMEDIA, &pThis->IMedia);
|
---|
4235 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMOUNT, pThis->fMountable ? &pThis->IMount : NULL);
|
---|
4236 | PDMIBASE_RETURN_INTERFACE(pszIID, PDMIMEDIAEX, pThis->pDrvMediaExPort ? &pThis->IMediaEx : NULL);
|
---|
4237 | return NULL;
|
---|
4238 | }
|
---|
4239 |
|
---|
4240 |
|
---|
4241 | /*********************************************************************************************************************************
|
---|
4242 | * Saved state notification methods *
|
---|
4243 | *********************************************************************************************************************************/
|
---|
4244 |
|
---|
4245 | /**
|
---|
4246 | * Load done callback for re-opening the image writable during teleportation.
|
---|
4247 | *
|
---|
4248 | * This is called both for successful and failed load runs, we only care about
|
---|
4249 | * successful ones.
|
---|
4250 | *
|
---|
4251 | * @returns VBox status code.
|
---|
4252 | * @param pDrvIns The driver instance.
|
---|
4253 | * @param pSSM The saved state handle.
|
---|
4254 | */
|
---|
4255 | static DECLCALLBACK(int) drvvdLoadDone(PPDMDRVINS pDrvIns, PSSMHANDLE pSSM)
|
---|
4256 | {
|
---|
4257 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4258 | PCPDMDRVHLPR3 pHlp = pDrvIns->pHlpR3;
|
---|
4259 | Assert(!pThis->fErrorUseRuntime);
|
---|
4260 |
|
---|
4261 | /* Drop out if we don't have any work to do or if it's a failed load. */
|
---|
4262 | if ( !pThis->fTempReadOnly
|
---|
4263 | || RT_FAILURE(pHlp->pfnSSMHandleGetStatus(pSSM)))
|
---|
4264 | return VINF_SUCCESS;
|
---|
4265 |
|
---|
4266 | int rc = drvvdSetWritable(pThis);
|
---|
4267 | if (RT_FAILURE(rc)) /** @todo does the bugger set any errors? */
|
---|
4268 | return pHlp->pfnSSMSetLoadError(pSSM, rc, RT_SRC_POS,
|
---|
4269 | N_("Failed to write lock the images"));
|
---|
4270 | return VINF_SUCCESS;
|
---|
4271 | }
|
---|
4272 |
|
---|
4273 |
|
---|
4274 | /*********************************************************************************************************************************
|
---|
4275 | * Driver methods *
|
---|
4276 | *********************************************************************************************************************************/
|
---|
4277 |
|
---|
4278 | /**
|
---|
4279 | * Worker for the power off or destruct callback.
|
---|
4280 | *
|
---|
4281 | * @param pDrvIns The driver instance.
|
---|
4282 | */
|
---|
4283 | static void drvvdPowerOffOrDestructOrUnmount(PPDMDRVINS pDrvIns)
|
---|
4284 | {
|
---|
4285 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4286 | LogFlowFunc(("\n"));
|
---|
4287 |
|
---|
4288 | RTSEMFASTMUTEX mutex;
|
---|
4289 | ASMAtomicXchgHandle(&pThis->MergeCompleteMutex, NIL_RTSEMFASTMUTEX, &mutex);
|
---|
4290 | if (mutex != NIL_RTSEMFASTMUTEX)
|
---|
4291 | {
|
---|
4292 | /* Request the semaphore to wait until a potentially running merge
|
---|
4293 | * operation has been finished. */
|
---|
4294 | int rc = RTSemFastMutexRequest(mutex);
|
---|
4295 | AssertRC(rc);
|
---|
4296 | pThis->fMergePending = false;
|
---|
4297 | rc = RTSemFastMutexRelease(mutex);
|
---|
4298 | AssertRC(rc);
|
---|
4299 | rc = RTSemFastMutexDestroy(mutex);
|
---|
4300 | AssertRC(rc);
|
---|
4301 | }
|
---|
4302 |
|
---|
4303 | if (RT_VALID_PTR(pThis->pBlkCache))
|
---|
4304 | {
|
---|
4305 | PDMDrvHlpBlkCacheRelease(pThis->pDrvIns, pThis->pBlkCache);
|
---|
4306 | pThis->pBlkCache = NULL;
|
---|
4307 | }
|
---|
4308 |
|
---|
4309 | if (RT_VALID_PTR(pThis->pRegionList))
|
---|
4310 | {
|
---|
4311 | VDRegionListFree(pThis->pRegionList);
|
---|
4312 | pThis->pRegionList = NULL;
|
---|
4313 | }
|
---|
4314 |
|
---|
4315 | if (RT_VALID_PTR(pThis->pDisk))
|
---|
4316 | {
|
---|
4317 | VDDestroy(pThis->pDisk);
|
---|
4318 | pThis->pDisk = NULL;
|
---|
4319 | }
|
---|
4320 | drvvdFreeImages(pThis);
|
---|
4321 | }
|
---|
4322 |
|
---|
4323 | /**
|
---|
4324 | * @copydoc FNPDMDRVPOWEROFF
|
---|
4325 | */
|
---|
4326 | static DECLCALLBACK(void) drvvdPowerOff(PPDMDRVINS pDrvIns)
|
---|
4327 | {
|
---|
4328 | PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
|
---|
4329 | drvvdPowerOffOrDestructOrUnmount(pDrvIns);
|
---|
4330 | }
|
---|
4331 |
|
---|
4332 | /**
|
---|
4333 | * @callback_method_impl{FNPDMDRVRESUME}
|
---|
4334 | *
|
---|
4335 | * VM resume notification that we use to undo what the temporary read-only image
|
---|
4336 | * mode set by drvvdSuspend.
|
---|
4337 | *
|
---|
4338 | * Also switch to runtime error mode if we're resuming after a state load
|
---|
4339 | * without having been powered on first.
|
---|
4340 | *
|
---|
4341 | * @todo The VMSetError vs VMSetRuntimeError mess must be fixed elsewhere,
|
---|
4342 | * we're making assumptions about Main behavior here!
|
---|
4343 | */
|
---|
4344 | static DECLCALLBACK(void) drvvdResume(PPDMDRVINS pDrvIns)
|
---|
4345 | {
|
---|
4346 | LogFlowFunc(("\n"));
|
---|
4347 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4348 |
|
---|
4349 | drvvdSetWritable(pThis);
|
---|
4350 | pThis->fSuspending = false;
|
---|
4351 | pThis->fRedo = false;
|
---|
4352 |
|
---|
4353 | if (pThis->pBlkCache)
|
---|
4354 | {
|
---|
4355 | int rc = PDMDrvHlpBlkCacheResume(pThis->pDrvIns, pThis->pBlkCache);
|
---|
4356 | AssertRC(rc);
|
---|
4357 | }
|
---|
4358 |
|
---|
4359 | if (pThis->pDrvMediaExPort)
|
---|
4360 | {
|
---|
4361 | /* Mark all requests waiting for I/O memory as active again so they get accounted for. */
|
---|
4362 | RTCritSectEnter(&pThis->CritSectIoReqsIoBufWait);
|
---|
4363 | PPDMMEDIAEXIOREQINT pIoReq, pIoReqNext;
|
---|
4364 | RTListForEachSafe(&pThis->LstIoReqIoBufWait, pIoReq, pIoReqNext, PDMMEDIAEXIOREQINT, NdLstWait)
|
---|
4365 | {
|
---|
4366 | pThis->pDrvMediaExPort->pfnIoReqStateChanged(pThis->pDrvMediaExPort, pIoReq, &pIoReq->abAlloc[0],
|
---|
4367 | PDMMEDIAEXIOREQSTATE_ACTIVE);
|
---|
4368 | ASMAtomicIncU32(&pThis->cIoReqsActive);
|
---|
4369 | LogFlowFunc(("Resumed I/O request %#p\n", pIoReq));
|
---|
4370 | }
|
---|
4371 | RTCritSectLeave(&pThis->CritSectIoReqsIoBufWait);
|
---|
4372 |
|
---|
4373 | /* Kick of any request we have to redo. */
|
---|
4374 | RTCritSectEnter(&pThis->CritSectIoReqRedo);
|
---|
4375 | RTListForEachSafe(&pThis->LstIoReqRedo, pIoReq, pIoReqNext, PDMMEDIAEXIOREQINT, NdLstWait)
|
---|
4376 | {
|
---|
4377 | int rc = VINF_SUCCESS;
|
---|
4378 | bool fXchg = ASMAtomicCmpXchgU32((volatile uint32_t *)&pIoReq->enmState, VDIOREQSTATE_ACTIVE, VDIOREQSTATE_SUSPENDED);
|
---|
4379 |
|
---|
4380 | RTListNodeRemove(&pIoReq->NdLstWait);
|
---|
4381 | ASMAtomicIncU32(&pThis->cIoReqsActive);
|
---|
4382 |
|
---|
4383 | LogFlowFunc(("Resuming I/O request %#p fXchg=%RTbool\n", pIoReq, fXchg));
|
---|
4384 | if (fXchg)
|
---|
4385 | {
|
---|
4386 | pThis->pDrvMediaExPort->pfnIoReqStateChanged(pThis->pDrvMediaExPort, pIoReq, &pIoReq->abAlloc[0],
|
---|
4387 | PDMMEDIAEXIOREQSTATE_ACTIVE);
|
---|
4388 | LogFlowFunc(("Resumed I/O request %#p\n", pIoReq));
|
---|
4389 | if ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_READ
|
---|
4390 | || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_WRITE)
|
---|
4391 | rc = drvvdMediaExIoReqReadWriteProcess(pThis, pIoReq, true /* fUpNotify */);
|
---|
4392 | else if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_FLUSH)
|
---|
4393 | {
|
---|
4394 | rc = drvvdMediaExIoReqFlushWrapper(pThis, pIoReq);
|
---|
4395 | if (rc == VERR_VD_ASYNC_IO_IN_PROGRESS)
|
---|
4396 | rc = VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS;
|
---|
4397 | else if (rc == VINF_VD_ASYNC_IO_FINISHED)
|
---|
4398 | rc = VINF_SUCCESS;
|
---|
4399 | }
|
---|
4400 | else if (pIoReq->enmType == PDMMEDIAEXIOREQTYPE_DISCARD)
|
---|
4401 | {
|
---|
4402 | rc = drvvdMediaExIoReqDiscardWrapper(pThis, pIoReq);
|
---|
4403 | if (rc == VERR_VD_ASYNC_IO_IN_PROGRESS)
|
---|
4404 | rc = VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS;
|
---|
4405 | else if (rc == VINF_VD_ASYNC_IO_FINISHED)
|
---|
4406 | rc = VINF_SUCCESS;
|
---|
4407 | }
|
---|
4408 | else
|
---|
4409 | AssertMsgFailed(("Invalid request type %u\n", pIoReq->enmType));
|
---|
4410 |
|
---|
4411 | /* The read write process will call the completion callback on its own. */
|
---|
4412 | if ( rc != VINF_PDM_MEDIAEX_IOREQ_IN_PROGRESS
|
---|
4413 | && ( pIoReq->enmType == PDMMEDIAEXIOREQTYPE_DISCARD
|
---|
4414 | || pIoReq->enmType == PDMMEDIAEXIOREQTYPE_FLUSH))
|
---|
4415 | {
|
---|
4416 | Assert( ( pIoReq->enmType != PDMMEDIAEXIOREQTYPE_WRITE
|
---|
4417 | && pIoReq->enmType != PDMMEDIAEXIOREQTYPE_READ)
|
---|
4418 | || !pIoReq->ReadWrite.cbReqLeft
|
---|
4419 | || RT_FAILURE(rc));
|
---|
4420 | drvvdMediaExIoReqCompleteWorker(pThis, pIoReq, rc, true /* fUpNotify */);
|
---|
4421 | }
|
---|
4422 |
|
---|
4423 | }
|
---|
4424 | else
|
---|
4425 | {
|
---|
4426 | /* Request was canceled inbetween, so don't care and notify the owner about the completed request. */
|
---|
4427 | Assert(pIoReq->enmState == VDIOREQSTATE_CANCELED);
|
---|
4428 | drvvdMediaExIoReqCompleteWorker(pThis, pIoReq, VERR_PDM_MEDIAEX_IOREQ_CANCELED, true /* fUpNotify */);
|
---|
4429 | }
|
---|
4430 | }
|
---|
4431 | Assert(RTListIsEmpty(&pThis->LstIoReqRedo));
|
---|
4432 | RTCritSectLeave(&pThis->CritSectIoReqRedo);
|
---|
4433 | }
|
---|
4434 |
|
---|
4435 | /* Try to process any requests waiting for I/O memory now. */
|
---|
4436 | drvvdMediaExIoReqProcessWaiting(pThis);
|
---|
4437 | pThis->fErrorUseRuntime = true;
|
---|
4438 | }
|
---|
4439 |
|
---|
4440 | /**
|
---|
4441 | * @callback_method_impl{FNPDMDRVSUSPEND}
|
---|
4442 | *
|
---|
4443 | * When the VM is being suspended, temporarily change to read-only image mode.
|
---|
4444 | *
|
---|
4445 | * This is important for several reasons:
|
---|
4446 | * -# It makes sure that there are no pending writes to the image. Most
|
---|
4447 | * backends implements this by closing and reopening the image in read-only
|
---|
4448 | * mode.
|
---|
4449 | * -# It allows Main to read the images during snapshotting without having
|
---|
4450 | * to account for concurrent writes.
|
---|
4451 | * -# This is essential for making teleportation targets sharing images work
|
---|
4452 | * right. Both with regards to caching and with regards to file sharing
|
---|
4453 | * locks (RTFILE_O_DENY_*). (See also drvvdLoadDone.)
|
---|
4454 | */
|
---|
4455 | static DECLCALLBACK(void) drvvdSuspend(PPDMDRVINS pDrvIns)
|
---|
4456 | {
|
---|
4457 | LogFlowFunc(("\n"));
|
---|
4458 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4459 |
|
---|
4460 | if (pThis->pBlkCache)
|
---|
4461 | {
|
---|
4462 | int rc = PDMDrvHlpBlkCacheSuspend(pThis->pDrvIns, pThis->pBlkCache);
|
---|
4463 | AssertRC(rc);
|
---|
4464 | }
|
---|
4465 |
|
---|
4466 | drvvdSetReadonly(pThis);
|
---|
4467 | }
|
---|
4468 |
|
---|
4469 | /**
|
---|
4470 | * @callback_method_impl{FNPDMDRVPOWERON}
|
---|
4471 | */
|
---|
4472 | static DECLCALLBACK(void) drvvdPowerOn(PPDMDRVINS pDrvIns)
|
---|
4473 | {
|
---|
4474 | LogFlowFunc(("\n"));
|
---|
4475 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4476 | drvvdSetWritable(pThis);
|
---|
4477 | pThis->fErrorUseRuntime = true;
|
---|
4478 | }
|
---|
4479 |
|
---|
4480 | /**
|
---|
4481 | * @callback_method_impl{FNPDMDRVRESET}
|
---|
4482 | */
|
---|
4483 | static DECLCALLBACK(void) drvvdReset(PPDMDRVINS pDrvIns)
|
---|
4484 | {
|
---|
4485 | LogFlowFunc(("\n"));
|
---|
4486 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4487 |
|
---|
4488 | if (pThis->pBlkCache)
|
---|
4489 | {
|
---|
4490 | int rc = PDMDrvHlpBlkCacheClear(pThis->pDrvIns, pThis->pBlkCache);
|
---|
4491 | AssertRC(rc);
|
---|
4492 | }
|
---|
4493 |
|
---|
4494 | if (pThis->fBootAccelEnabled)
|
---|
4495 | {
|
---|
4496 | pThis->fBootAccelActive = true;
|
---|
4497 | pThis->cbDataValid = 0;
|
---|
4498 | pThis->offDisk = 0;
|
---|
4499 | }
|
---|
4500 | pThis->fLocked = false;
|
---|
4501 | }
|
---|
4502 |
|
---|
4503 | /**
|
---|
4504 | * @callback_method_impl{FNPDMDRVDESTRUCT}
|
---|
4505 | */
|
---|
4506 | static DECLCALLBACK(void) drvvdDestruct(PPDMDRVINS pDrvIns)
|
---|
4507 | {
|
---|
4508 | PDMDRV_CHECK_VERSIONS_RETURN_VOID(pDrvIns);
|
---|
4509 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4510 | LogFlowFunc(("\n"));
|
---|
4511 |
|
---|
4512 | /*
|
---|
4513 | * Make sure the block cache and disks are closed when this driver is
|
---|
4514 | * destroyed. This method will get called without calling the power off
|
---|
4515 | * callback first when we reconfigure the driver chain after a snapshot.
|
---|
4516 | */
|
---|
4517 | drvvdPowerOffOrDestructOrUnmount(pDrvIns);
|
---|
4518 | if (pThis->MergeLock != NIL_RTSEMRW)
|
---|
4519 | {
|
---|
4520 | int rc = RTSemRWDestroy(pThis->MergeLock);
|
---|
4521 | AssertRC(rc);
|
---|
4522 | pThis->MergeLock = NIL_RTSEMRW;
|
---|
4523 | }
|
---|
4524 | if (pThis->pbData)
|
---|
4525 | {
|
---|
4526 | RTMemFree(pThis->pbData);
|
---|
4527 | pThis->pbData = NULL;
|
---|
4528 | }
|
---|
4529 | if (pThis->pszBwGroup)
|
---|
4530 | {
|
---|
4531 | PDMDrvHlpMMHeapFree(pDrvIns, pThis->pszBwGroup);
|
---|
4532 | pThis->pszBwGroup = NULL;
|
---|
4533 | }
|
---|
4534 | if (pThis->hHbdMgr != NIL_HBDMGR)
|
---|
4535 | HBDMgrDestroy(pThis->hHbdMgr);
|
---|
4536 | if (pThis->hIoReqCache != NIL_RTMEMCACHE)
|
---|
4537 | RTMemCacheDestroy(pThis->hIoReqCache);
|
---|
4538 | if (pThis->hIoBufMgr != NIL_IOBUFMGR)
|
---|
4539 | IOBUFMgrDestroy(pThis->hIoBufMgr);
|
---|
4540 | if (RTCritSectIsInitialized(&pThis->CritSectIoReqsIoBufWait))
|
---|
4541 | RTCritSectDelete(&pThis->CritSectIoReqsIoBufWait);
|
---|
4542 | if (RTCritSectIsInitialized(&pThis->CritSectIoReqRedo))
|
---|
4543 | RTCritSectDelete(&pThis->CritSectIoReqRedo);
|
---|
4544 | for (unsigned i = 0; i < RT_ELEMENTS(pThis->aIoReqAllocBins); i++)
|
---|
4545 | if (pThis->aIoReqAllocBins[i].hMtxLstIoReqAlloc != NIL_RTSEMFASTMUTEX)
|
---|
4546 | RTSemFastMutexDestroy(pThis->aIoReqAllocBins[i].hMtxLstIoReqAlloc);
|
---|
4547 |
|
---|
4548 | drvvdStatsDeregister(pThis);
|
---|
4549 |
|
---|
4550 | PVDCFGNODE pIt;
|
---|
4551 | PVDCFGNODE pItNext;
|
---|
4552 | RTListForEachSafe(&pThis->LstCfgNodes, pIt, pItNext, VDCFGNODE, NdLst)
|
---|
4553 | {
|
---|
4554 | RTListNodeRemove(&pIt->NdLst);
|
---|
4555 | RTMemFreeZ(pIt, sizeof(*pIt));
|
---|
4556 | }
|
---|
4557 | }
|
---|
4558 |
|
---|
4559 | /**
|
---|
4560 | * @callback_method_impl{FNPDMDRVCONSTRUCT,
|
---|
4561 | * Construct a VBox disk media driver instance.}
|
---|
4562 | */
|
---|
4563 | static DECLCALLBACK(int) drvvdConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfg, uint32_t fFlags)
|
---|
4564 | {
|
---|
4565 | RT_NOREF(fFlags);
|
---|
4566 | PDMDRV_CHECK_VERSIONS_RETURN(pDrvIns);
|
---|
4567 | PVBOXDISK pThis = PDMINS_2_DATA(pDrvIns, PVBOXDISK);
|
---|
4568 | PCPDMDRVHLPR3 pHlp = pDrvIns->pHlpR3;
|
---|
4569 |
|
---|
4570 | LogFlowFunc(("\n"));
|
---|
4571 |
|
---|
4572 | char *pszName = NULL; /* The path of the disk image file. */
|
---|
4573 | char *pszFormat = NULL; /* The format backed to use for this image. */
|
---|
4574 | char *pszCachePath = NULL; /* The path to the cache image. */
|
---|
4575 | char *pszCacheFormat = NULL; /* The format backend to use for the cache image. */
|
---|
4576 | bool fReadOnly = false; /* True if the media is read-only. */
|
---|
4577 | bool fMaybeReadOnly = false; /* True if the media may or may not be read-only. */
|
---|
4578 | bool fHonorZeroWrites = false; /* True if zero blocks should be written. */
|
---|
4579 |
|
---|
4580 | /*
|
---|
4581 | * Init the static parts.
|
---|
4582 | */
|
---|
4583 | pDrvIns->IBase.pfnQueryInterface = drvvdQueryInterface;
|
---|
4584 | pThis->pDrvIns = pDrvIns;
|
---|
4585 | pThis->fTempReadOnly = false;
|
---|
4586 | pThis->pDisk = NULL;
|
---|
4587 | pThis->fAsyncIOSupported = false;
|
---|
4588 | pThis->fShareable = false;
|
---|
4589 | pThis->fMergePending = false;
|
---|
4590 | pThis->MergeCompleteMutex = NIL_RTSEMFASTMUTEX;
|
---|
4591 | pThis->MergeLock = NIL_RTSEMRW;
|
---|
4592 | pThis->uMergeSource = VD_LAST_IMAGE;
|
---|
4593 | pThis->uMergeTarget = VD_LAST_IMAGE;
|
---|
4594 | pThis->CfgCrypto.pCfgNode = NULL;
|
---|
4595 | pThis->CfgCrypto.pHlp = pDrvIns->pHlpR3;
|
---|
4596 | pThis->pIfSecKey = NULL;
|
---|
4597 | pThis->hIoReqCache = NIL_RTMEMCACHE;
|
---|
4598 | pThis->hIoBufMgr = NIL_IOBUFMGR;
|
---|
4599 | pThis->pRegionList = NULL;
|
---|
4600 | pThis->fSuspending = false;
|
---|
4601 | pThis->fRedo = false;
|
---|
4602 |
|
---|
4603 | for (unsigned i = 0; i < RT_ELEMENTS(pThis->aIoReqAllocBins); i++)
|
---|
4604 | pThis->aIoReqAllocBins[i].hMtxLstIoReqAlloc = NIL_RTSEMFASTMUTEX;
|
---|
4605 |
|
---|
4606 | /* IMedia */
|
---|
4607 | pThis->IMedia.pfnRead = drvvdRead;
|
---|
4608 | pThis->IMedia.pfnReadPcBios = drvvdReadPcBios;
|
---|
4609 | pThis->IMedia.pfnWrite = drvvdWrite;
|
---|
4610 | pThis->IMedia.pfnFlush = drvvdFlush;
|
---|
4611 | pThis->IMedia.pfnMerge = drvvdMerge;
|
---|
4612 | pThis->IMedia.pfnSetSecKeyIf = drvvdSetSecKeyIf;
|
---|
4613 | pThis->IMedia.pfnGetSize = drvvdGetSize;
|
---|
4614 | pThis->IMedia.pfnGetSectorSize = drvvdGetSectorSize;
|
---|
4615 | pThis->IMedia.pfnIsReadOnly = drvvdIsReadOnly;
|
---|
4616 | pThis->IMedia.pfnIsNonRotational = drvvdIsNonRotational;
|
---|
4617 | pThis->IMedia.pfnBiosGetPCHSGeometry = drvvdBiosGetPCHSGeometry;
|
---|
4618 | pThis->IMedia.pfnBiosSetPCHSGeometry = drvvdBiosSetPCHSGeometry;
|
---|
4619 | pThis->IMedia.pfnBiosGetLCHSGeometry = drvvdBiosGetLCHSGeometry;
|
---|
4620 | pThis->IMedia.pfnBiosSetLCHSGeometry = drvvdBiosSetLCHSGeometry;
|
---|
4621 | pThis->IMedia.pfnBiosIsVisible = drvvdBiosIsVisible;
|
---|
4622 | pThis->IMedia.pfnGetType = drvvdGetType;
|
---|
4623 | pThis->IMedia.pfnGetUuid = drvvdGetUuid;
|
---|
4624 | pThis->IMedia.pfnDiscard = drvvdDiscard;
|
---|
4625 | pThis->IMedia.pfnSendCmd = NULL;
|
---|
4626 | pThis->IMedia.pfnGetRegionCount = drvvdGetRegionCount;
|
---|
4627 | pThis->IMedia.pfnQueryRegionProperties = drvvdQueryRegionProperties;
|
---|
4628 | pThis->IMedia.pfnQueryRegionPropertiesForLba = drvvdQueryRegionPropertiesForLba;
|
---|
4629 |
|
---|
4630 | /* IMount */
|
---|
4631 | pThis->IMount.pfnUnmount = drvvdUnmount;
|
---|
4632 | pThis->IMount.pfnIsMounted = drvvdIsMounted;
|
---|
4633 | pThis->IMount.pfnLock = drvvdLock;
|
---|
4634 | pThis->IMount.pfnUnlock = drvvdUnlock;
|
---|
4635 | pThis->IMount.pfnIsLocked = drvvdIsLocked;
|
---|
4636 |
|
---|
4637 | /* IMediaEx */
|
---|
4638 | pThis->IMediaEx.pfnQueryFeatures = drvvdQueryFeatures;
|
---|
4639 | pThis->IMediaEx.pfnNotifySuspend = drvvdNotifySuspend;
|
---|
4640 | pThis->IMediaEx.pfnIoReqAllocSizeSet = drvvdIoReqAllocSizeSet;
|
---|
4641 | pThis->IMediaEx.pfnIoReqAlloc = drvvdIoReqAlloc;
|
---|
4642 | pThis->IMediaEx.pfnIoReqFree = drvvdIoReqFree;
|
---|
4643 | pThis->IMediaEx.pfnIoReqQueryResidual = drvvdIoReqQueryResidual;
|
---|
4644 | pThis->IMediaEx.pfnIoReqQueryXferSize = drvvdIoReqQueryXferSize;
|
---|
4645 | pThis->IMediaEx.pfnIoReqCancelAll = drvvdIoReqCancelAll;
|
---|
4646 | pThis->IMediaEx.pfnIoReqCancel = drvvdIoReqCancel;
|
---|
4647 | pThis->IMediaEx.pfnIoReqRead = drvvdIoReqRead;
|
---|
4648 | pThis->IMediaEx.pfnIoReqWrite = drvvdIoReqWrite;
|
---|
4649 | pThis->IMediaEx.pfnIoReqFlush = drvvdIoReqFlush;
|
---|
4650 | pThis->IMediaEx.pfnIoReqDiscard = drvvdIoReqDiscard;
|
---|
4651 | pThis->IMediaEx.pfnIoReqSendScsiCmd = drvvdIoReqSendScsiCmd;
|
---|
4652 | pThis->IMediaEx.pfnIoReqGetActiveCount = drvvdIoReqGetActiveCount;
|
---|
4653 | pThis->IMediaEx.pfnIoReqGetSuspendedCount = drvvdIoReqGetSuspendedCount;
|
---|
4654 | pThis->IMediaEx.pfnIoReqQuerySuspendedStart = drvvdIoReqQuerySuspendedStart;
|
---|
4655 | pThis->IMediaEx.pfnIoReqQuerySuspendedNext = drvvdIoReqQuerySuspendedNext;
|
---|
4656 | pThis->IMediaEx.pfnIoReqSuspendedSave = drvvdIoReqSuspendedSave;
|
---|
4657 | pThis->IMediaEx.pfnIoReqSuspendedLoad = drvvdIoReqSuspendedLoad;
|
---|
4658 |
|
---|
4659 | RTListInit(&pThis->LstCfgNodes);
|
---|
4660 |
|
---|
4661 | /* Initialize supported VD interfaces. */
|
---|
4662 | pThis->pVDIfsDisk = NULL;
|
---|
4663 |
|
---|
4664 | pThis->VDIfError.pfnError = drvvdErrorCallback;
|
---|
4665 | pThis->VDIfError.pfnMessage = NULL;
|
---|
4666 | int rc = VDInterfaceAdd(&pThis->VDIfError.Core, "DrvVD_VDIError", VDINTERFACETYPE_ERROR,
|
---|
4667 | pDrvIns, sizeof(VDINTERFACEERROR), &pThis->pVDIfsDisk);
|
---|
4668 | AssertRC(rc);
|
---|
4669 |
|
---|
4670 | /* List of images is empty now. */
|
---|
4671 | pThis->pImages = NULL;
|
---|
4672 |
|
---|
4673 | pThis->pDrvMediaPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMEDIAPORT);
|
---|
4674 | if (!pThis->pDrvMediaPort)
|
---|
4675 | return PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_MISSING_INTERFACE_ABOVE,
|
---|
4676 | N_("No media port interface above"));
|
---|
4677 |
|
---|
4678 | pThis->pDrvMountNotify = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMOUNTNOTIFY);
|
---|
4679 |
|
---|
4680 | /*
|
---|
4681 | * Try to attach the optional extended media interface port above and initialize associated
|
---|
4682 | * structures if available.
|
---|
4683 | */
|
---|
4684 | pThis->pDrvMediaExPort = PDMIBASE_QUERY_INTERFACE(pDrvIns->pUpBase, PDMIMEDIAEXPORT);
|
---|
4685 | if (pThis->pDrvMediaExPort)
|
---|
4686 | {
|
---|
4687 | for (unsigned i = 0; i < RT_ELEMENTS(pThis->aIoReqAllocBins); i++)
|
---|
4688 | {
|
---|
4689 | rc = RTSemFastMutexCreate(&pThis->aIoReqAllocBins[i].hMtxLstIoReqAlloc);
|
---|
4690 | if (RT_FAILURE(rc))
|
---|
4691 | break;
|
---|
4692 | RTListInit(&pThis->aIoReqAllocBins[i].LstIoReqAlloc);
|
---|
4693 | }
|
---|
4694 |
|
---|
4695 | if (RT_SUCCESS(rc))
|
---|
4696 | rc = RTCritSectInit(&pThis->CritSectIoReqsIoBufWait);
|
---|
4697 |
|
---|
4698 | if (RT_SUCCESS(rc))
|
---|
4699 | rc = RTCritSectInit(&pThis->CritSectIoReqRedo);
|
---|
4700 |
|
---|
4701 | if (RT_FAILURE(rc))
|
---|
4702 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Creating Mutex failed"));
|
---|
4703 |
|
---|
4704 | RTListInit(&pThis->LstIoReqIoBufWait);
|
---|
4705 | RTListInit(&pThis->LstIoReqRedo);
|
---|
4706 | }
|
---|
4707 |
|
---|
4708 | /* Before we access any VD API load all given plugins. */
|
---|
4709 | rc = drvvdLoadPlugins(pDrvIns, pCfg);
|
---|
4710 | if (RT_FAILURE(rc))
|
---|
4711 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Loading VD plugins failed"));
|
---|
4712 |
|
---|
4713 | /*
|
---|
4714 | * Validate configuration and find all parent images.
|
---|
4715 | * It's sort of up side down from the image dependency tree.
|
---|
4716 | */
|
---|
4717 | bool fHostIP = false;
|
---|
4718 | bool fUseNewIo = false;
|
---|
4719 | bool fUseBlockCache = false;
|
---|
4720 | bool fDiscard = false;
|
---|
4721 | bool fInformAboutZeroBlocks = false;
|
---|
4722 | bool fSkipConsistencyChecks = false;
|
---|
4723 | bool fEmptyDrive = false;
|
---|
4724 | unsigned iLevel = 0;
|
---|
4725 | PCFGMNODE pCurNode = pCfg;
|
---|
4726 | uint32_t cbIoBufMax = 0;
|
---|
4727 |
|
---|
4728 | for (;;)
|
---|
4729 | {
|
---|
4730 | bool fValid;
|
---|
4731 |
|
---|
4732 | if (pCurNode == pCfg)
|
---|
4733 | {
|
---|
4734 | /* Toplevel configuration additionally contains the global image
|
---|
4735 | * open flags. Some might be converted to per-image flags later. */
|
---|
4736 | fValid = pHlp->pfnCFGMAreValuesValid(pCurNode,
|
---|
4737 | "Format\0Path\0"
|
---|
4738 | "ReadOnly\0MaybeReadOnly\0TempReadOnly\0Shareable\0HonorZeroWrites\0"
|
---|
4739 | "HostIPStack\0UseNewIo\0BootAcceleration\0BootAccelerationBuffer\0"
|
---|
4740 | "SetupMerge\0MergeSource\0MergeTarget\0BwGroup\0Type\0BlockCache\0"
|
---|
4741 | "CachePath\0CacheFormat\0Discard\0InformAboutZeroBlocks\0"
|
---|
4742 | "SkipConsistencyChecks\0"
|
---|
4743 | "Locked\0BIOSVisible\0Cylinders\0Heads\0Sectors\0Mountable\0"
|
---|
4744 | "EmptyDrive\0IoBufMax\0NonRotationalMedium\0"
|
---|
4745 | #if defined(VBOX_PERIODIC_FLUSH) || defined(VBOX_IGNORE_FLUSH)
|
---|
4746 | "FlushInterval\0IgnoreFlush\0IgnoreFlushAsync\0"
|
---|
4747 | #endif /* !(VBOX_PERIODIC_FLUSH || VBOX_IGNORE_FLUSH) */
|
---|
4748 | );
|
---|
4749 | }
|
---|
4750 | else
|
---|
4751 | {
|
---|
4752 | /* All other image configurations only contain image name and
|
---|
4753 | * the format information. */
|
---|
4754 | fValid = pHlp->pfnCFGMAreValuesValid(pCurNode, "Format\0Path\0"
|
---|
4755 | "MergeSource\0MergeTarget\0");
|
---|
4756 | }
|
---|
4757 | if (!fValid)
|
---|
4758 | {
|
---|
4759 | rc = PDMDrvHlpVMSetError(pDrvIns, VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES,
|
---|
4760 | RT_SRC_POS, N_("DrvVD: Configuration error: keys incorrect at level %d"), iLevel);
|
---|
4761 | break;
|
---|
4762 | }
|
---|
4763 |
|
---|
4764 | if (pCurNode == pCfg)
|
---|
4765 | {
|
---|
4766 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "HostIPStack", &fHostIP, true);
|
---|
4767 | if (RT_FAILURE(rc))
|
---|
4768 | {
|
---|
4769 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4770 | N_("DrvVD: Configuration error: Querying \"HostIPStack\" as boolean failed"));
|
---|
4771 | break;
|
---|
4772 | }
|
---|
4773 |
|
---|
4774 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "HonorZeroWrites", &fHonorZeroWrites, false);
|
---|
4775 | if (RT_FAILURE(rc))
|
---|
4776 | {
|
---|
4777 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4778 | N_("DrvVD: Configuration error: Querying \"HonorZeroWrites\" as boolean failed"));
|
---|
4779 | break;
|
---|
4780 | }
|
---|
4781 |
|
---|
4782 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "ReadOnly", &fReadOnly, false);
|
---|
4783 | if (RT_FAILURE(rc))
|
---|
4784 | {
|
---|
4785 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4786 | N_("DrvVD: Configuration error: Querying \"ReadOnly\" as boolean failed"));
|
---|
4787 | break;
|
---|
4788 | }
|
---|
4789 |
|
---|
4790 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "MaybeReadOnly", &fMaybeReadOnly, false);
|
---|
4791 | if (RT_FAILURE(rc))
|
---|
4792 | {
|
---|
4793 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4794 | N_("DrvVD: Configuration error: Querying \"MaybeReadOnly\" as boolean failed"));
|
---|
4795 | break;
|
---|
4796 | }
|
---|
4797 |
|
---|
4798 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "TempReadOnly", &pThis->fTempReadOnly, false);
|
---|
4799 | if (RT_FAILURE(rc))
|
---|
4800 | {
|
---|
4801 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4802 | N_("DrvVD: Configuration error: Querying \"TempReadOnly\" as boolean failed"));
|
---|
4803 | break;
|
---|
4804 | }
|
---|
4805 | if (fReadOnly && pThis->fTempReadOnly)
|
---|
4806 | {
|
---|
4807 | rc = PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_DRIVER_INVALID_PROPERTIES,
|
---|
4808 | N_("DrvVD: Configuration error: Both \"ReadOnly\" and \"TempReadOnly\" are set"));
|
---|
4809 | break;
|
---|
4810 | }
|
---|
4811 |
|
---|
4812 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "Shareable", &pThis->fShareable, false);
|
---|
4813 | if (RT_FAILURE(rc))
|
---|
4814 | {
|
---|
4815 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4816 | N_("DrvVD: Configuration error: Querying \"Shareable\" as boolean failed"));
|
---|
4817 | break;
|
---|
4818 | }
|
---|
4819 |
|
---|
4820 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "UseNewIo", &fUseNewIo, false);
|
---|
4821 | if (RT_FAILURE(rc))
|
---|
4822 | {
|
---|
4823 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4824 | N_("DrvVD: Configuration error: Querying \"UseNewIo\" as boolean failed"));
|
---|
4825 | break;
|
---|
4826 | }
|
---|
4827 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "SetupMerge", &pThis->fMergePending, false);
|
---|
4828 | if (RT_FAILURE(rc))
|
---|
4829 | {
|
---|
4830 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4831 | N_("DrvVD: Configuration error: Querying \"SetupMerge\" as boolean failed"));
|
---|
4832 | break;
|
---|
4833 | }
|
---|
4834 | if (fReadOnly && pThis->fMergePending)
|
---|
4835 | {
|
---|
4836 | rc = PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_DRIVER_INVALID_PROPERTIES,
|
---|
4837 | N_("DrvVD: Configuration error: Both \"ReadOnly\" and \"MergePending\" are set"));
|
---|
4838 | break;
|
---|
4839 | }
|
---|
4840 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "BootAcceleration", &pThis->fBootAccelEnabled, false);
|
---|
4841 | if (RT_FAILURE(rc))
|
---|
4842 | {
|
---|
4843 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4844 | N_("DrvVD: Configuration error: Querying \"BootAcceleration\" as boolean failed"));
|
---|
4845 | break;
|
---|
4846 | }
|
---|
4847 | rc = pHlp->pfnCFGMQueryU32Def(pCurNode, "BootAccelerationBuffer", (uint32_t *)&pThis->cbBootAccelBuffer, 16 * _1K);
|
---|
4848 | if (RT_FAILURE(rc))
|
---|
4849 | {
|
---|
4850 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4851 | N_("DrvVD: Configuration error: Querying \"BootAccelerationBuffer\" as integer failed"));
|
---|
4852 | break;
|
---|
4853 | }
|
---|
4854 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "BlockCache", &fUseBlockCache, false);
|
---|
4855 | if (RT_FAILURE(rc))
|
---|
4856 | {
|
---|
4857 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4858 | N_("DrvVD: Configuration error: Querying \"BlockCache\" as boolean failed"));
|
---|
4859 | break;
|
---|
4860 | }
|
---|
4861 | rc = pHlp->pfnCFGMQueryStringAlloc(pCurNode, "BwGroup", &pThis->pszBwGroup);
|
---|
4862 | if (RT_FAILURE(rc) && rc != VERR_CFGM_VALUE_NOT_FOUND)
|
---|
4863 | {
|
---|
4864 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4865 | N_("DrvVD: Configuration error: Querying \"BwGroup\" as string failed"));
|
---|
4866 | break;
|
---|
4867 | }
|
---|
4868 | else
|
---|
4869 | rc = VINF_SUCCESS;
|
---|
4870 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "Discard", &fDiscard, false);
|
---|
4871 | if (RT_FAILURE(rc))
|
---|
4872 | {
|
---|
4873 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4874 | N_("DrvVD: Configuration error: Querying \"Discard\" as boolean failed"));
|
---|
4875 | break;
|
---|
4876 | }
|
---|
4877 | if (fReadOnly && fDiscard)
|
---|
4878 | {
|
---|
4879 | rc = PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_DRIVER_INVALID_PROPERTIES,
|
---|
4880 | N_("DrvVD: Configuration error: Both \"ReadOnly\" and \"Discard\" are set"));
|
---|
4881 | break;
|
---|
4882 | }
|
---|
4883 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "InformAboutZeroBlocks", &fInformAboutZeroBlocks, false);
|
---|
4884 | if (RT_FAILURE(rc))
|
---|
4885 | {
|
---|
4886 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4887 | N_("DrvVD: Configuration error: Querying \"InformAboutZeroBlocks\" as boolean failed"));
|
---|
4888 | break;
|
---|
4889 | }
|
---|
4890 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "SkipConsistencyChecks", &fSkipConsistencyChecks, true);
|
---|
4891 | if (RT_FAILURE(rc))
|
---|
4892 | {
|
---|
4893 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4894 | N_("DrvVD: Configuration error: Querying \"SKipConsistencyChecks\" as boolean failed"));
|
---|
4895 | break;
|
---|
4896 | }
|
---|
4897 |
|
---|
4898 | char *psz = NULL;
|
---|
4899 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "Type", &psz);
|
---|
4900 | if (RT_FAILURE(rc))
|
---|
4901 | return PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_BLOCK_NO_TYPE, N_("Failed to obtain the sub type"));
|
---|
4902 | pThis->enmType = drvvdGetMediaTypeFromString(psz);
|
---|
4903 | if (pThis->enmType == PDMMEDIATYPE_ERROR)
|
---|
4904 | {
|
---|
4905 | PDMDrvHlpVMSetError(pDrvIns, VERR_PDM_BLOCK_UNKNOWN_TYPE, RT_SRC_POS,
|
---|
4906 | N_("Unknown type \"%s\""), psz);
|
---|
4907 | PDMDrvHlpMMHeapFree(pDrvIns, psz);
|
---|
4908 | return VERR_PDM_BLOCK_UNKNOWN_TYPE;
|
---|
4909 | }
|
---|
4910 | PDMDrvHlpMMHeapFree(pDrvIns, psz); psz = NULL;
|
---|
4911 |
|
---|
4912 | rc = pHlp->pfnCFGMQueryStringAlloc(pCurNode, "CachePath", &pszCachePath);
|
---|
4913 | if (RT_FAILURE(rc) && rc != VERR_CFGM_VALUE_NOT_FOUND)
|
---|
4914 | {
|
---|
4915 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4916 | N_("DrvVD: Configuration error: Querying \"CachePath\" as string failed"));
|
---|
4917 | break;
|
---|
4918 | }
|
---|
4919 | rc = VINF_SUCCESS;
|
---|
4920 |
|
---|
4921 | if (pszCachePath)
|
---|
4922 | {
|
---|
4923 | rc = pHlp->pfnCFGMQueryStringAlloc(pCurNode, "CacheFormat", &pszCacheFormat);
|
---|
4924 | if (RT_FAILURE(rc))
|
---|
4925 | {
|
---|
4926 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
4927 | N_("DrvVD: Configuration error: Querying \"CacheFormat\" as string failed"));
|
---|
4928 | break;
|
---|
4929 | }
|
---|
4930 | }
|
---|
4931 |
|
---|
4932 | /* Mountable */
|
---|
4933 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "Mountable", &pThis->fMountable, false);
|
---|
4934 | if (RT_FAILURE(rc))
|
---|
4935 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"Mountable\" from the config"));
|
---|
4936 |
|
---|
4937 | /* Locked */
|
---|
4938 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "Locked", &pThis->fLocked, false);
|
---|
4939 | if (RT_FAILURE(rc))
|
---|
4940 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"Locked\" from the config"));
|
---|
4941 |
|
---|
4942 | /* BIOS visible */
|
---|
4943 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "BIOSVisible", &pThis->fBiosVisible, true);
|
---|
4944 | if (RT_FAILURE(rc))
|
---|
4945 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"BIOSVisible\" from the config"));
|
---|
4946 |
|
---|
4947 | /* Cylinders */
|
---|
4948 | rc = pHlp->pfnCFGMQueryU32Def(pCfg, "Cylinders", &pThis->LCHSGeometry.cCylinders, 0);
|
---|
4949 | if (RT_FAILURE(rc))
|
---|
4950 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"Cylinders\" from the config"));
|
---|
4951 |
|
---|
4952 | /* Heads */
|
---|
4953 | rc = pHlp->pfnCFGMQueryU32Def(pCfg, "Heads", &pThis->LCHSGeometry.cHeads, 0);
|
---|
4954 | if (RT_FAILURE(rc))
|
---|
4955 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"Heads\" from the config"));
|
---|
4956 |
|
---|
4957 | /* Sectors */
|
---|
4958 | rc = pHlp->pfnCFGMQueryU32Def(pCfg, "Sectors", &pThis->LCHSGeometry.cSectors, 0);
|
---|
4959 | if (RT_FAILURE(rc))
|
---|
4960 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"Sectors\" from the config"));
|
---|
4961 |
|
---|
4962 | /* Uuid */
|
---|
4963 | rc = pHlp->pfnCFGMQueryStringAlloc(pCfg, "Uuid", &psz);
|
---|
4964 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
|
---|
4965 | RTUuidClear(&pThis->Uuid);
|
---|
4966 | else if (RT_SUCCESS(rc))
|
---|
4967 | {
|
---|
4968 | rc = RTUuidFromStr(&pThis->Uuid, psz);
|
---|
4969 | if (RT_FAILURE(rc))
|
---|
4970 | {
|
---|
4971 | PDMDrvHlpVMSetError(pDrvIns, rc, RT_SRC_POS, N_("Uuid from string failed on \"%s\""), psz);
|
---|
4972 | PDMDrvHlpMMHeapFree(pDrvIns, psz);
|
---|
4973 | return rc;
|
---|
4974 | }
|
---|
4975 | PDMDrvHlpMMHeapFree(pDrvIns, psz); psz = NULL;
|
---|
4976 | }
|
---|
4977 | else
|
---|
4978 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"Uuid\" from the config"));
|
---|
4979 |
|
---|
4980 | #ifdef VBOX_PERIODIC_FLUSH
|
---|
4981 | rc = pHlp->pfnCFGMQueryU32Def(pCfg, "FlushInterval", &pThis->cbFlushInterval, 0);
|
---|
4982 | if (RT_FAILURE(rc))
|
---|
4983 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"FlushInterval\" from the config"));
|
---|
4984 | #endif /* VBOX_PERIODIC_FLUSH */
|
---|
4985 |
|
---|
4986 | #ifdef VBOX_IGNORE_FLUSH
|
---|
4987 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "IgnoreFlush", &pThis->fIgnoreFlush, true);
|
---|
4988 | if (RT_FAILURE(rc))
|
---|
4989 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"IgnoreFlush\" from the config"));
|
---|
4990 |
|
---|
4991 | if (pThis->fIgnoreFlush)
|
---|
4992 | LogRel(("DrvVD: Flushes will be ignored\n"));
|
---|
4993 | else
|
---|
4994 | LogRel(("DrvVD: Flushes will be passed to the disk\n"));
|
---|
4995 |
|
---|
4996 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "IgnoreFlushAsync", &pThis->fIgnoreFlushAsync, false);
|
---|
4997 | if (RT_FAILURE(rc))
|
---|
4998 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"IgnoreFlushAsync\" from the config"));
|
---|
4999 |
|
---|
5000 | if (pThis->fIgnoreFlushAsync)
|
---|
5001 | LogRel(("DrvVD: Async flushes will be ignored\n"));
|
---|
5002 | else
|
---|
5003 | LogRel(("DrvVD: Async flushes will be passed to the disk\n"));
|
---|
5004 | #endif /* VBOX_IGNORE_FLUSH */
|
---|
5005 |
|
---|
5006 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "EmptyDrive", &fEmptyDrive, false);
|
---|
5007 | if (RT_FAILURE(rc))
|
---|
5008 | {
|
---|
5009 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
5010 | N_("DrvVD: Configuration error: Querying \"EmptyDrive\" as boolean failed"));
|
---|
5011 | break;
|
---|
5012 | }
|
---|
5013 |
|
---|
5014 | rc = pHlp->pfnCFGMQueryU32Def(pCfg, "IoBufMax", &cbIoBufMax, 5 * _1M);
|
---|
5015 | if (RT_FAILURE(rc))
|
---|
5016 | return PDMDRV_SET_ERROR(pDrvIns, rc, N_("Failed to query \"IoBufMax\" from the config"));
|
---|
5017 |
|
---|
5018 | rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "NonRotationalMedium", &pThis->fNonRotational, false);
|
---|
5019 | if (RT_FAILURE(rc))
|
---|
5020 | return PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
5021 | N_("DrvVD configuration error: Querying \"NonRotationalMedium\" as boolean failed"));
|
---|
5022 | }
|
---|
5023 |
|
---|
5024 | PCFGMNODE pParent = pHlp->pfnCFGMGetChild(pCurNode, "Parent");
|
---|
5025 | if (!pParent)
|
---|
5026 | break;
|
---|
5027 | pCurNode = pParent;
|
---|
5028 | iLevel++;
|
---|
5029 | }
|
---|
5030 |
|
---|
5031 | if (pThis->pDrvMediaExPort)
|
---|
5032 | rc = IOBUFMgrCreate(&pThis->hIoBufMgr, cbIoBufMax, pThis->CfgCrypto.pCfgNode ? IOBUFMGR_F_REQUIRE_NOT_PAGABLE : IOBUFMGR_F_DEFAULT);
|
---|
5033 |
|
---|
5034 | if ( !fEmptyDrive
|
---|
5035 | && RT_SUCCESS(rc))
|
---|
5036 | {
|
---|
5037 | /*
|
---|
5038 | * Create the image container and the necessary interfaces.
|
---|
5039 | */
|
---|
5040 | if (RT_SUCCESS(rc))
|
---|
5041 | {
|
---|
5042 | /*
|
---|
5043 | * The image has a bandwidth group but the host cache is enabled.
|
---|
5044 | * Use the async I/O framework but tell it to enable the host cache.
|
---|
5045 | */
|
---|
5046 | if (!fUseNewIo && pThis->pszBwGroup)
|
---|
5047 | {
|
---|
5048 | pThis->fAsyncIoWithHostCache = true;
|
---|
5049 | fUseNewIo = true;
|
---|
5050 | }
|
---|
5051 |
|
---|
5052 | /** @todo quick hack to work around problems in the async I/O
|
---|
5053 | * implementation (rw semaphore thread ownership problem)
|
---|
5054 | * while a merge is running. Remove once this is fixed. */
|
---|
5055 | if (pThis->fMergePending)
|
---|
5056 | fUseNewIo = false;
|
---|
5057 |
|
---|
5058 | if (RT_SUCCESS(rc) && pThis->fMergePending)
|
---|
5059 | {
|
---|
5060 | rc = RTSemFastMutexCreate(&pThis->MergeCompleteMutex);
|
---|
5061 | if (RT_SUCCESS(rc))
|
---|
5062 | rc = RTSemRWCreate(&pThis->MergeLock);
|
---|
5063 | if (RT_SUCCESS(rc))
|
---|
5064 | {
|
---|
5065 | pThis->VDIfThreadSync.pfnStartRead = drvvdThreadStartRead;
|
---|
5066 | pThis->VDIfThreadSync.pfnFinishRead = drvvdThreadFinishRead;
|
---|
5067 | pThis->VDIfThreadSync.pfnStartWrite = drvvdThreadStartWrite;
|
---|
5068 | pThis->VDIfThreadSync.pfnFinishWrite = drvvdThreadFinishWrite;
|
---|
5069 |
|
---|
5070 | rc = VDInterfaceAdd(&pThis->VDIfThreadSync.Core, "DrvVD_ThreadSync", VDINTERFACETYPE_THREADSYNC,
|
---|
5071 | pThis, sizeof(VDINTERFACETHREADSYNC), &pThis->pVDIfsDisk);
|
---|
5072 | }
|
---|
5073 | else
|
---|
5074 | {
|
---|
5075 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
5076 | N_("DrvVD: Failed to create semaphores for \"MergePending\""));
|
---|
5077 | }
|
---|
5078 | }
|
---|
5079 |
|
---|
5080 | if (RT_SUCCESS(rc))
|
---|
5081 | {
|
---|
5082 | rc = VDCreate(pThis->pVDIfsDisk, drvvdGetVDFromMediaType(pThis->enmType), &pThis->pDisk);
|
---|
5083 | /* Error message is already set correctly. */
|
---|
5084 | }
|
---|
5085 | }
|
---|
5086 |
|
---|
5087 | if (pThis->pDrvMediaExPort && fUseNewIo)
|
---|
5088 | pThis->fAsyncIOSupported = true;
|
---|
5089 |
|
---|
5090 | uint64_t tsStart = RTTimeNanoTS();
|
---|
5091 |
|
---|
5092 | unsigned iImageIdx = 0;
|
---|
5093 | while (pCurNode && RT_SUCCESS(rc))
|
---|
5094 | {
|
---|
5095 | /* Allocate per-image data. */
|
---|
5096 | PVBOXIMAGE pImage = drvvdNewImage(pThis);
|
---|
5097 | if (!pImage)
|
---|
5098 | {
|
---|
5099 | rc = VERR_NO_MEMORY;
|
---|
5100 | break;
|
---|
5101 | }
|
---|
5102 |
|
---|
5103 | /*
|
---|
5104 | * Read the image configuration.
|
---|
5105 | */
|
---|
5106 | rc = pHlp->pfnCFGMQueryStringAlloc(pCurNode, "Path", &pszName);
|
---|
5107 | if (RT_FAILURE(rc))
|
---|
5108 | {
|
---|
5109 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
5110 | N_("DrvVD: Configuration error: Querying \"Path\" as string failed"));
|
---|
5111 | break;
|
---|
5112 | }
|
---|
5113 |
|
---|
5114 | rc = pHlp->pfnCFGMQueryStringAlloc(pCurNode, "Format", &pszFormat);
|
---|
5115 | if (RT_FAILURE(rc))
|
---|
5116 | {
|
---|
5117 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
5118 | N_("DrvVD: Configuration error: Querying \"Format\" as string failed"));
|
---|
5119 | break;
|
---|
5120 | }
|
---|
5121 |
|
---|
5122 | bool fMergeSource;
|
---|
5123 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "MergeSource", &fMergeSource, false);
|
---|
5124 | if (RT_FAILURE(rc))
|
---|
5125 | {
|
---|
5126 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
5127 | N_("DrvVD: Configuration error: Querying \"MergeSource\" as boolean failed"));
|
---|
5128 | break;
|
---|
5129 | }
|
---|
5130 | if (fMergeSource)
|
---|
5131 | {
|
---|
5132 | if (pThis->uMergeSource == VD_LAST_IMAGE)
|
---|
5133 | pThis->uMergeSource = iImageIdx;
|
---|
5134 | else
|
---|
5135 | {
|
---|
5136 | rc = PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_DRIVER_INVALID_PROPERTIES,
|
---|
5137 | N_("DrvVD: Configuration error: Multiple \"MergeSource\" occurrences"));
|
---|
5138 | break;
|
---|
5139 | }
|
---|
5140 | }
|
---|
5141 |
|
---|
5142 | bool fMergeTarget;
|
---|
5143 | rc = pHlp->pfnCFGMQueryBoolDef(pCurNode, "MergeTarget", &fMergeTarget, false);
|
---|
5144 | if (RT_FAILURE(rc))
|
---|
5145 | {
|
---|
5146 | rc = PDMDRV_SET_ERROR(pDrvIns, rc,
|
---|
5147 | N_("DrvVD: Configuration error: Querying \"MergeTarget\" as boolean failed"));
|
---|
5148 | break;
|
---|
5149 | }
|
---|
5150 | if (fMergeTarget)
|
---|
5151 | {
|
---|
5152 | if (pThis->uMergeTarget == VD_LAST_IMAGE)
|
---|
5153 | pThis->uMergeTarget = iImageIdx;
|
---|
5154 | else
|
---|
5155 | {
|
---|
5156 | rc = PDMDRV_SET_ERROR(pDrvIns, VERR_PDM_DRIVER_INVALID_PROPERTIES,
|
---|
5157 | N_("DrvVD: Configuration error: Multiple \"MergeTarget\" occurrences"));
|
---|
5158 | break;
|
---|
5159 | }
|
---|
5160 | }
|
---|
5161 |
|
---|
5162 | PCFGMNODE pCfgVDConfig = pHlp->pfnCFGMGetChild(pCurNode, "VDConfig");
|
---|
5163 | pImage->VDIfConfig.pfnAreKeysValid = drvvdCfgAreKeysValid;
|
---|
5164 | pImage->VDIfConfig.pfnQuerySize = drvvdCfgQuerySize;
|
---|
5165 | pImage->VDIfConfig.pfnQuery = drvvdCfgQuery;
|
---|
5166 | pImage->VDIfConfig.pfnQueryBytes = NULL;
|
---|
5167 |
|
---|
5168 | PVDCFGNODE pCfgNode = (PVDCFGNODE)RTMemAllocZ(sizeof(*pCfgNode));
|
---|
5169 | if (RT_UNLIKELY(!pCfgNode))
|
---|
5170 | {
|
---|
5171 | rc = PDMDRV_SET_ERROR(pDrvIns, VERR_NO_MEMORY,
|
---|
5172 | N_("DrvVD: Failed to allocate memory for config node"));
|
---|
5173 | break;
|
---|
5174 | }
|
---|
5175 |
|
---|
5176 | pCfgNode->pHlp = pDrvIns->pHlpR3;
|
---|
5177 | pCfgNode->pCfgNode = pCfgVDConfig;
|
---|
5178 | RTListAppend(&pThis->LstCfgNodes, &pCfgNode->NdLst);
|
---|
5179 |
|
---|
5180 | rc = VDInterfaceAdd(&pImage->VDIfConfig.Core, "DrvVD_Config", VDINTERFACETYPE_CONFIG,
|
---|
5181 | pCfgNode, sizeof(VDINTERFACECONFIG), &pImage->pVDIfsImage);
|
---|
5182 | AssertRC(rc);
|
---|
5183 |
|
---|
5184 | /* Check VDConfig for encryption config. */
|
---|
5185 | /** @todo This makes sure that the crypto config is not cleared accidentally
|
---|
5186 | * when it was set because there are multiple VDConfig entries for a snapshot chain
|
---|
5187 | * but only one contains the crypto config.
|
---|
5188 | *
|
---|
5189 | * This needs to be properly fixed by specifying which part of the image should contain the
|
---|
5190 | * crypto stuff.
|
---|
5191 | */
|
---|
5192 | if (!pThis->CfgCrypto.pCfgNode)
|
---|
5193 | {
|
---|
5194 | if (pCfgVDConfig)
|
---|
5195 | pThis->CfgCrypto.pCfgNode = pHlp->pfnCFGMGetChild(pCfgVDConfig, "CRYPT");
|
---|
5196 |
|
---|
5197 | if (pThis->CfgCrypto.pCfgNode)
|
---|
5198 | {
|
---|
5199 | /* Setup VDConfig interface for disk encryption support. */
|
---|
5200 | pThis->VDIfCfg.pfnAreKeysValid = drvvdCfgAreKeysValid;
|
---|
5201 | pThis->VDIfCfg.pfnQuerySize = drvvdCfgQuerySize;
|
---|
5202 | pThis->VDIfCfg.pfnQuery = drvvdCfgQuery;
|
---|
5203 | pThis->VDIfCfg.pfnQueryBytes = NULL;
|
---|
5204 |
|
---|
5205 | pThis->VDIfCrypto.pfnKeyRetain = drvvdCryptoKeyRetain;
|
---|
5206 | pThis->VDIfCrypto.pfnKeyRelease = drvvdCryptoKeyRelease;
|
---|
5207 | pThis->VDIfCrypto.pfnKeyStorePasswordRetain = drvvdCryptoKeyStorePasswordRetain;
|
---|
5208 | pThis->VDIfCrypto.pfnKeyStorePasswordRelease = drvvdCryptoKeyStorePasswordRelease;
|
---|
5209 | }
|
---|
5210 | }
|
---|
5211 |
|
---|
5212 | /* Unconditionally insert the TCPNET interface, don't bother to check
|
---|
5213 | * if an image really needs it. Will be ignored. Since the TCPNET
|
---|
5214 | * interface is per image we could make this more flexible in the
|
---|
5215 | * future if we want to. */
|
---|
5216 | /* Construct TCPNET callback table depending on the config. This is
|
---|
5217 | * done unconditionally, as uninterested backends will ignore it. */
|
---|
5218 | if (fHostIP)
|
---|
5219 | rc = VDIfTcpNetInstDefaultCreate(&pImage->hVdIfTcpNet, &pImage->pVDIfsImage |
---|