1 | /* $Id: SUPDrv.cpp 103684 2024-03-05 15:27:02Z vboxsync $ */
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2 | /** @file
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3 | * VBoxDrv - The VirtualBox Support Driver - Common code.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2023 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 | * The contents of this file may alternatively be used under the terms
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26 | * of the Common Development and Distribution License Version 1.0
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27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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28 | * in the VirtualBox distribution, in which case the provisions of the
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29 | * CDDL are applicable instead of those of the GPL.
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30 | *
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31 | * You may elect to license modified versions of this file under the
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32 | * terms and conditions of either the GPL or the CDDL or both.
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33 | *
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34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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35 | */
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36 |
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37 |
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38 | /*********************************************************************************************************************************
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39 | * Header Files *
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40 | *********************************************************************************************************************************/
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41 | #define LOG_GROUP LOG_GROUP_SUP_DRV
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42 | #define SUPDRV_AGNOSTIC
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43 | #include "SUPDrvInternal.h"
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44 | #ifndef PAGE_SHIFT
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45 | # include <iprt/param.h>
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46 | #endif
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47 | #include <iprt/asm.h>
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48 | #include <iprt/asm-amd64-x86.h>
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49 | #include <iprt/asm-math.h>
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50 | #include <iprt/cpuset.h>
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51 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS) || defined(RT_OS_WINDOWS)
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52 | # include <iprt/dbg.h>
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53 | #endif
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54 | #include <iprt/handletable.h>
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55 | #include <iprt/mem.h>
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56 | #include <iprt/mp.h>
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57 | #include <iprt/power.h>
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58 | #include <iprt/process.h>
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59 | #include <iprt/semaphore.h>
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60 | #include <iprt/spinlock.h>
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61 | #include <iprt/thread.h>
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62 | #include <iprt/uuid.h>
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63 | #include <iprt/net.h>
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64 | #include <iprt/crc.h>
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65 | #include <iprt/string.h>
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66 | #include <iprt/timer.h>
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67 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD)
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68 | # include <iprt/rand.h>
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69 | # include <iprt/path.h>
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70 | #endif
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71 | #include <iprt/uint128.h>
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72 | #include <iprt/x86.h>
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73 |
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74 | #include <VBox/param.h>
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75 | #include <VBox/log.h>
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76 | #include <VBox/err.h>
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77 | #include <VBox/vmm/hm_vmx.h>
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78 |
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79 | #if defined(RT_OS_SOLARIS) || defined(RT_OS_DARWIN)
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80 | # include "dtrace/SUPDrv.h"
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81 | #else
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82 | # define VBOXDRV_SESSION_CREATE(pvSession, fUser) do { } while (0)
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83 | # define VBOXDRV_SESSION_CLOSE(pvSession) do { } while (0)
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84 | # define VBOXDRV_IOCTL_ENTRY(pvSession, uIOCtl, pvReqHdr) do { } while (0)
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85 | # define VBOXDRV_IOCTL_RETURN(pvSession, uIOCtl, pvReqHdr, rcRet, rcReq) do { } while (0)
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86 | #endif
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87 |
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88 | #ifdef __cplusplus
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89 | # if __cplusplus >= 201100 || RT_MSC_PREREQ(RT_MSC_VER_VS2019)
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90 | # define SUPDRV_CAN_COUNT_FUNCTION_ARGS
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91 | # ifdef _MSC_VER
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92 | # pragma warning(push)
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93 | # pragma warning(disable:4577)
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94 | # include <type_traits>
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95 | # pragma warning(pop)
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96 |
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97 | # elif defined(RT_OS_DARWIN)
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98 | # define _LIBCPP_CSTDDEF
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99 | # include <__nullptr>
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100 | # include <type_traits>
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101 |
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102 | # else
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103 | # include <type_traits>
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104 | # endif
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105 | # endif
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106 | #endif
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107 |
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108 |
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109 | /*
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110 | * Logging assignments:
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111 | * Log - useful stuff, like failures.
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112 | * LogFlow - program flow, except the really noisy bits.
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113 | * Log2 - Cleanup.
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114 | * Log3 - Loader flow noise.
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115 | * Log4 - Call VMMR0 flow noise.
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116 | * Log5 - Native yet-to-be-defined noise.
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117 | * Log6 - Native ioctl flow noise.
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118 | *
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119 | * Logging requires KBUILD_TYPE=debug and possibly changes to the logger
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120 | * instantiation in log-vbox.c(pp).
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121 | */
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122 |
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123 |
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124 | /*********************************************************************************************************************************
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125 | * Defined Constants And Macros *
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126 | *********************************************************************************************************************************/
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127 | /** @def VBOX_SVN_REV
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128 | * The makefile should define this if it can. */
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129 | #ifndef VBOX_SVN_REV
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130 | # define VBOX_SVN_REV 0
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131 | #endif
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132 |
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133 | /** @ SUPDRV_CHECK_SMAP_SETUP
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134 | * SMAP check setup. */
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135 | /** @def SUPDRV_CHECK_SMAP_CHECK
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136 | * Checks that the AC flag is set if SMAP is enabled. If AC is not set, it
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137 | * will be logged and @a a_BadExpr is executed. */
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138 | #if (defined(RT_OS_DARWIN) || defined(RT_OS_LINUX)) && !defined(VBOX_WITHOUT_EFLAGS_AC_SET_IN_VBOXDRV)
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139 | # define SUPDRV_CHECK_SMAP_SETUP() uint32_t const fKernelFeatures = SUPR0GetKernelFeatures()
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140 | # define SUPDRV_CHECK_SMAP_CHECK(a_pDevExt, a_BadExpr) \
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141 | do { \
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142 | if (fKernelFeatures & SUPKERNELFEATURES_SMAP) \
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143 | { \
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144 | RTCCUINTREG fEfl = ASMGetFlags(); \
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145 | if (RT_LIKELY(fEfl & X86_EFL_AC)) \
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146 | { /* likely */ } \
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147 | else \
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148 | { \
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149 | supdrvBadContext(a_pDevExt, "SUPDrv.cpp", __LINE__, "EFLAGS.AC is 0!"); \
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150 | a_BadExpr; \
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151 | } \
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152 | } \
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153 | } while (0)
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154 | #else
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155 | # define SUPDRV_CHECK_SMAP_SETUP() uint32_t const fKernelFeatures = 0
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156 | # define SUPDRV_CHECK_SMAP_CHECK(a_pDevExt, a_BadExpr) NOREF(fKernelFeatures)
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157 | #endif
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158 |
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159 |
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160 | /*********************************************************************************************************************************
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161 | * Internal Functions *
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162 | *********************************************************************************************************************************/
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163 | static DECLCALLBACK(int) supdrvSessionObjHandleRetain(RTHANDLETABLE hHandleTable, void *pvObj, void *pvCtx, void *pvUser);
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164 | static DECLCALLBACK(void) supdrvSessionObjHandleDelete(RTHANDLETABLE hHandleTable, uint32_t h, void *pvObj, void *pvCtx, void *pvUser);
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165 | static int supdrvMemAdd(PSUPDRVMEMREF pMem, PSUPDRVSESSION pSession);
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166 | static int supdrvMemRelease(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, SUPDRVMEMREFTYPE eType);
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167 | static int supdrvIOCtl_LdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDROPEN pReq);
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168 | static int supdrvIOCtl_LdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRLOAD pReq);
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169 | static int supdrvIOCtl_LdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRFREE pReq);
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170 | static int supdrvIOCtl_LdrLockDown(PSUPDRVDEVEXT pDevExt);
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171 | static int supdrvIOCtl_LdrQuerySymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRGETSYMBOL pReq);
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172 | static int supdrvIDC_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQGETSYM pReq);
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173 | static int supdrvLdrAddUsage(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVLDRIMAGE pImage, bool fRing3Usage);
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174 | DECLINLINE(void) supdrvLdrSubtractUsage(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, uint32_t cReference);
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175 | static void supdrvLdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
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176 | DECLINLINE(int) supdrvLdrLock(PSUPDRVDEVEXT pDevExt);
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177 | DECLINLINE(int) supdrvLdrUnlock(PSUPDRVDEVEXT pDevExt);
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178 | static int supdrvIOCtl_CallServiceModule(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPCALLSERVICE pReq);
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179 | static int supdrvIOCtl_LoggerSettings(PSUPLOGGERSETTINGS pReq);
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180 | static int supdrvIOCtl_MsrProber(PSUPDRVDEVEXT pDevExt, PSUPMSRPROBER pReq);
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181 | static int supdrvIOCtl_ResumeSuspendedKbds(void);
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182 |
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183 |
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184 | /*********************************************************************************************************************************
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185 | * Global Variables *
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186 | *********************************************************************************************************************************/
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187 | /** @def SUPEXP_CHECK_ARGS
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188 | * This is for checking the argument count of the function in the entry,
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189 | * just to make sure we don't accidentally export something the wrapper
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190 | * can't deal with.
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191 | *
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192 | * Using some C++11 magic to do the counting.
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193 | *
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194 | * The error is reported by overflowing the SUPFUNC::cArgs field, so the
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195 | * warnings can probably be a little mysterious.
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196 | *
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197 | * @note Doesn't work for CLANG 11. Works for Visual C++, unless there
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198 | * are function pointers in the argument list.
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199 | */
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200 | #if defined(SUPDRV_CAN_COUNT_FUNCTION_ARGS) && RT_CLANG_PREREQ(99, 0)
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201 | template <typename RetType, typename ... Types>
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202 | constexpr std::integral_constant<unsigned, sizeof ...(Types)>
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203 | CountFunctionArguments(RetType(RTCALL *)(Types ...))
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204 | {
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205 | return std::integral_constant<unsigned, sizeof ...(Types)>{};
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206 | }
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207 | # define SUPEXP_CHECK_ARGS(a_cArgs, a_Name) \
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208 | ((a_cArgs) >= decltype(CountFunctionArguments(a_Name))::value ? (uint8_t)(a_cArgs) : 1023)
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209 |
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210 | #else
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211 | # define SUPEXP_CHECK_ARGS(a_cArgs, a_Name) a_cArgs
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212 | #endif
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213 |
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214 | /** @name Function table entry macros.
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215 | * @note The SUPEXP_STK_BACKF macro is because VC++ has trouble with functions
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216 | * with function pointer arguments (probably noexcept related).
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217 | * @{ */
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218 | #define SUPEXP_CUSTOM(a_cArgs, a_Name, a_Value) { #a_Name, a_cArgs, (void *)(uintptr_t)(a_Value) }
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219 | #define SUPEXP_STK_OKAY(a_cArgs, a_Name) { #a_Name, SUPEXP_CHECK_ARGS(a_cArgs, a_Name), (void *)(uintptr_t)a_Name }
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220 | #if 0
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221 | # define SUPEXP_STK_BACK(a_cArgs, a_Name) { "StkBack_" #a_Name, SUPEXP_CHECK_ARGS(a_cArgs, a_Name), (void *)(uintptr_t)a_Name }
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222 | # define SUPEXP_STK_BACKF(a_cArgs, a_Name) { "StkBack_" #a_Name, SUPEXP_CHECK_ARGS(a_cArgs, a_Name), (void *)(uintptr_t)a_Name }
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223 | #else
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224 | # define SUPEXP_STK_BACK(a_cArgs, a_Name) { #a_Name, SUPEXP_CHECK_ARGS(a_cArgs, a_Name), (void *)(uintptr_t)a_Name }
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225 | # ifdef _MSC_VER
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226 | # define SUPEXP_STK_BACKF(a_cArgs, a_Name) { #a_Name, a_cArgs, (void *)(uintptr_t)a_Name }
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227 | # else
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228 | # define SUPEXP_STK_BACKF(a_cArgs, a_Name) { #a_Name, SUPEXP_CHECK_ARGS(a_cArgs, a_Name), (void *)(uintptr_t)a_Name }
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229 | # endif
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230 | #endif
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231 | /** @} */
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232 |
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233 | /**
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234 | * Array of the R0 SUP API.
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235 | *
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236 | * While making changes to these exports, make sure to update the IOC
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237 | * minor version (SUPDRV_IOC_VERSION).
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238 | *
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239 | * @remarks This array is processed by SUPR0-def-pe.sed and SUPR0-def-lx.sed to
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240 | * produce definition files from which import libraries are generated.
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241 | * Take care when commenting things and especially with \#ifdef'ing.
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242 | */
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243 | static SUPFUNC g_aFunctions[] =
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244 | {
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245 | /* SED: START */
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246 | /* name function */
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247 | /* Entries with absolute addresses determined at runtime, fixup
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248 | code makes ugly ASSUMPTIONS about the order here: */
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249 | SUPEXP_CUSTOM( 0, SUPR0AbsIs64bit, 0),
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250 | SUPEXP_CUSTOM( 0, SUPR0Abs64bitKernelCS, 0),
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251 | SUPEXP_CUSTOM( 0, SUPR0Abs64bitKernelSS, 0),
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252 | SUPEXP_CUSTOM( 0, SUPR0Abs64bitKernelDS, 0),
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253 | SUPEXP_CUSTOM( 0, SUPR0AbsKernelCS, 0),
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254 | SUPEXP_CUSTOM( 0, SUPR0AbsKernelSS, 0),
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255 | SUPEXP_CUSTOM( 0, SUPR0AbsKernelDS, 0),
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256 | SUPEXP_CUSTOM( 0, SUPR0AbsKernelES, 0),
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257 | SUPEXP_CUSTOM( 0, SUPR0AbsKernelFS, 0),
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258 | SUPEXP_CUSTOM( 0, SUPR0AbsKernelGS, 0),
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259 | /* Normal function & data pointers: */
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260 | SUPEXP_CUSTOM( 0, g_pSUPGlobalInfoPage, &g_pSUPGlobalInfoPage), /* SED: DATA */
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261 | SUPEXP_STK_OKAY( 0, SUPGetGIP),
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262 | SUPEXP_STK_BACK( 1, SUPReadTscWithDelta),
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263 | SUPEXP_STK_BACK( 1, SUPGetTscDeltaSlow),
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264 | SUPEXP_STK_BACK( 1, SUPGetCpuHzFromGipForAsyncMode),
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265 | SUPEXP_STK_OKAY( 3, SUPIsTscFreqCompatible),
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266 | SUPEXP_STK_OKAY( 3, SUPIsTscFreqCompatibleEx),
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267 | SUPEXP_STK_BACK( 4, SUPR0BadContext),
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268 | SUPEXP_STK_BACK( 2, SUPR0ComponentDeregisterFactory),
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269 | SUPEXP_STK_BACK( 4, SUPR0ComponentQueryFactory),
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270 | SUPEXP_STK_BACK( 2, SUPR0ComponentRegisterFactory),
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271 | SUPEXP_STK_BACK( 5, SUPR0ContAlloc),
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272 | SUPEXP_STK_BACK( 2, SUPR0ContFree),
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273 | SUPEXP_STK_BACK( 2, SUPR0ChangeCR4),
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274 | SUPEXP_STK_BACK( 1, SUPR0EnableVTx),
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275 | SUPEXP_STK_OKAY( 1, SUPR0FpuBegin),
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276 | SUPEXP_STK_OKAY( 1, SUPR0FpuEnd),
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277 | SUPEXP_STK_BACK( 0, SUPR0SuspendVTxOnCpu),
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278 | SUPEXP_STK_BACK( 1, SUPR0ResumeVTxOnCpu),
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279 | SUPEXP_STK_OKAY( 1, SUPR0GetCurrentGdtRw),
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280 | SUPEXP_STK_OKAY( 0, SUPR0GetKernelFeatures),
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281 | SUPEXP_STK_BACK( 3, SUPR0GetHwvirtMsrs),
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282 | SUPEXP_STK_BACK( 0, SUPR0GetPagingMode),
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283 | SUPEXP_STK_BACK( 1, SUPR0GetSvmUsability),
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284 | SUPEXP_STK_BACK( 1, SUPR0GetVTSupport),
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285 | SUPEXP_STK_BACK( 1, SUPR0GetVmxUsability),
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286 | SUPEXP_STK_BACK( 2, SUPR0LdrIsLockOwnerByMod),
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287 | SUPEXP_STK_BACK( 1, SUPR0LdrLock),
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288 | SUPEXP_STK_BACK( 1, SUPR0LdrUnlock),
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289 | SUPEXP_STK_BACK( 3, SUPR0LdrModByName),
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290 | SUPEXP_STK_BACK( 2, SUPR0LdrModRelease),
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291 | SUPEXP_STK_BACK( 2, SUPR0LdrModRetain),
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292 | SUPEXP_STK_BACK( 4, SUPR0LockMem),
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293 | SUPEXP_STK_BACK( 5, SUPR0LowAlloc),
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294 | SUPEXP_STK_BACK( 2, SUPR0LowFree),
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295 | SUPEXP_STK_BACK( 4, SUPR0MemAlloc),
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296 | SUPEXP_STK_BACK( 2, SUPR0MemFree),
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297 | SUPEXP_STK_BACK( 3, SUPR0MemGetPhys),
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298 | SUPEXP_STK_BACK( 2, SUPR0ObjAddRef),
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299 | SUPEXP_STK_BACK( 3, SUPR0ObjAddRefEx),
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300 | SUPEXP_STK_BACKF( 5, SUPR0ObjRegister),
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301 | SUPEXP_STK_BACK( 2, SUPR0ObjRelease),
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302 | SUPEXP_STK_BACK( 3, SUPR0ObjVerifyAccess),
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303 | SUPEXP_STK_BACK( 6, SUPR0PageAllocEx),
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304 | SUPEXP_STK_BACK( 2, SUPR0PageFree),
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305 | SUPEXP_STK_BACK( 6, SUPR0PageMapKernel),
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306 | SUPEXP_STK_BACK( 6, SUPR0PageProtect),
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307 | #if defined(RT_OS_LINUX) || defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD)
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308 | SUPEXP_STK_OKAY( 2, SUPR0HCPhysToVirt), /* only-linux, only-solaris, only-freebsd */
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309 | #endif
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310 | SUPEXP_STK_BACK( 2, SUPR0PrintfV),
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311 | SUPEXP_STK_BACK( 1, SUPR0GetSessionGVM),
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312 | SUPEXP_STK_BACK( 1, SUPR0GetSessionVM),
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313 | SUPEXP_STK_BACK( 3, SUPR0SetSessionVM),
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314 | SUPEXP_STK_BACK( 1, SUPR0GetSessionUid),
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315 | SUPEXP_STK_BACK( 6, SUPR0TscDeltaMeasureBySetIndex),
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316 | SUPEXP_STK_BACK( 1, SUPR0TracerDeregisterDrv),
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317 | SUPEXP_STK_BACK( 2, SUPR0TracerDeregisterImpl),
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318 | SUPEXP_STK_BACK( 6, SUPR0TracerFireProbe),
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319 | SUPEXP_STK_BACK( 3, SUPR0TracerRegisterDrv),
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320 | SUPEXP_STK_BACK( 4, SUPR0TracerRegisterImpl),
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321 | SUPEXP_STK_BACK( 2, SUPR0TracerRegisterModule),
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322 | SUPEXP_STK_BACK( 2, SUPR0TracerUmodProbeFire),
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323 | SUPEXP_STK_BACK( 2, SUPR0UnlockMem),
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324 | #ifdef RT_OS_WINDOWS
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325 | SUPEXP_STK_BACK( 4, SUPR0IoCtlSetupForHandle), /* only-windows */
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326 | SUPEXP_STK_BACK( 9, SUPR0IoCtlPerform), /* only-windows */
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327 | SUPEXP_STK_BACK( 1, SUPR0IoCtlCleanup), /* only-windows */
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328 | #endif
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329 | SUPEXP_STK_BACK( 2, SUPSemEventClose),
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330 | SUPEXP_STK_BACK( 2, SUPSemEventCreate),
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331 | SUPEXP_STK_BACK( 1, SUPSemEventGetResolution),
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332 | SUPEXP_STK_BACK( 2, SUPSemEventMultiClose),
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333 | SUPEXP_STK_BACK( 2, SUPSemEventMultiCreate),
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334 | SUPEXP_STK_BACK( 1, SUPSemEventMultiGetResolution),
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335 | SUPEXP_STK_BACK( 2, SUPSemEventMultiReset),
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336 | SUPEXP_STK_BACK( 2, SUPSemEventMultiSignal),
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337 | SUPEXP_STK_BACK( 3, SUPSemEventMultiWait),
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338 | SUPEXP_STK_BACK( 3, SUPSemEventMultiWaitNoResume),
|
---|
339 | SUPEXP_STK_BACK( 3, SUPSemEventMultiWaitNsAbsIntr),
|
---|
340 | SUPEXP_STK_BACK( 3, SUPSemEventMultiWaitNsRelIntr),
|
---|
341 | SUPEXP_STK_BACK( 2, SUPSemEventSignal),
|
---|
342 | SUPEXP_STK_BACK( 3, SUPSemEventWait),
|
---|
343 | SUPEXP_STK_BACK( 3, SUPSemEventWaitNoResume),
|
---|
344 | SUPEXP_STK_BACK( 3, SUPSemEventWaitNsAbsIntr),
|
---|
345 | SUPEXP_STK_BACK( 3, SUPSemEventWaitNsRelIntr),
|
---|
346 |
|
---|
347 | SUPEXP_STK_BACK( 0, RTAssertAreQuiet),
|
---|
348 | SUPEXP_STK_BACK( 0, RTAssertMayPanic),
|
---|
349 | SUPEXP_STK_BACK( 4, RTAssertMsg1),
|
---|
350 | SUPEXP_STK_BACK( 2, RTAssertMsg2AddV),
|
---|
351 | SUPEXP_STK_BACK( 2, RTAssertMsg2V),
|
---|
352 | SUPEXP_STK_BACK( 1, RTAssertSetMayPanic),
|
---|
353 | SUPEXP_STK_BACK( 1, RTAssertSetQuiet),
|
---|
354 | SUPEXP_STK_OKAY( 2, RTCrc32),
|
---|
355 | SUPEXP_STK_OKAY( 1, RTCrc32Finish),
|
---|
356 | SUPEXP_STK_OKAY( 3, RTCrc32Process),
|
---|
357 | SUPEXP_STK_OKAY( 0, RTCrc32Start),
|
---|
358 | SUPEXP_STK_OKAY( 1, RTErrConvertFromErrno),
|
---|
359 | SUPEXP_STK_OKAY( 1, RTErrConvertToErrno),
|
---|
360 | SUPEXP_STK_BACK( 4, RTHandleTableAllocWithCtx),
|
---|
361 | SUPEXP_STK_BACK( 1, RTHandleTableCreate),
|
---|
362 | SUPEXP_STK_BACKF( 6, RTHandleTableCreateEx),
|
---|
363 | SUPEXP_STK_BACKF( 3, RTHandleTableDestroy),
|
---|
364 | SUPEXP_STK_BACK( 3, RTHandleTableFreeWithCtx),
|
---|
365 | SUPEXP_STK_BACK( 3, RTHandleTableLookupWithCtx),
|
---|
366 | SUPEXP_STK_BACK( 4, RTLogBulkNestedWrite),
|
---|
367 | SUPEXP_STK_BACK( 5, RTLogBulkUpdate),
|
---|
368 | SUPEXP_STK_BACK( 2, RTLogCheckGroupFlags),
|
---|
369 | SUPEXP_STK_BACKF( 17, RTLogCreateExV),
|
---|
370 | SUPEXP_STK_BACK( 1, RTLogDestroy),
|
---|
371 | SUPEXP_STK_BACK( 0, RTLogDefaultInstance),
|
---|
372 | SUPEXP_STK_BACK( 1, RTLogDefaultInstanceEx),
|
---|
373 | SUPEXP_STK_BACK( 1, SUPR0DefaultLogInstanceEx),
|
---|
374 | SUPEXP_STK_BACK( 0, RTLogGetDefaultInstance),
|
---|
375 | SUPEXP_STK_BACK( 1, RTLogGetDefaultInstanceEx),
|
---|
376 | SUPEXP_STK_BACK( 1, SUPR0GetDefaultLogInstanceEx),
|
---|
377 | SUPEXP_STK_BACK( 5, RTLogLoggerExV),
|
---|
378 | SUPEXP_STK_BACK( 2, RTLogPrintfV),
|
---|
379 | SUPEXP_STK_BACK( 0, RTLogRelGetDefaultInstance),
|
---|
380 | SUPEXP_STK_BACK( 1, RTLogRelGetDefaultInstanceEx),
|
---|
381 | SUPEXP_STK_BACK( 1, SUPR0GetDefaultLogRelInstanceEx),
|
---|
382 | SUPEXP_STK_BACK( 2, RTLogSetDefaultInstanceThread),
|
---|
383 | SUPEXP_STK_BACKF( 2, RTLogSetFlushCallback),
|
---|
384 | SUPEXP_STK_BACK( 2, RTLogSetR0ProgramStart),
|
---|
385 | SUPEXP_STK_BACK( 3, RTLogSetR0ThreadNameV),
|
---|
386 | SUPEXP_STK_BACK( 5, RTMemAllocExTag),
|
---|
387 | SUPEXP_STK_BACK( 2, RTMemAllocTag),
|
---|
388 | SUPEXP_STK_BACK( 2, RTMemAllocVarTag),
|
---|
389 | SUPEXP_STK_BACK( 2, RTMemAllocZTag),
|
---|
390 | SUPEXP_STK_BACK( 2, RTMemAllocZVarTag),
|
---|
391 | SUPEXP_STK_BACK( 4, RTMemDupExTag),
|
---|
392 | SUPEXP_STK_BACK( 3, RTMemDupTag),
|
---|
393 | SUPEXP_STK_BACK( 1, RTMemFree),
|
---|
394 | SUPEXP_STK_BACK( 2, RTMemFreeEx),
|
---|
395 | SUPEXP_STK_BACK( 3, RTMemReallocTag),
|
---|
396 | SUPEXP_STK_BACK( 0, RTMpCpuId),
|
---|
397 | SUPEXP_STK_BACK( 1, RTMpCpuIdFromSetIndex),
|
---|
398 | SUPEXP_STK_BACK( 1, RTMpCpuIdToSetIndex),
|
---|
399 | SUPEXP_STK_BACK( 0, RTMpCurSetIndex),
|
---|
400 | SUPEXP_STK_BACK( 1, RTMpCurSetIndexAndId),
|
---|
401 | SUPEXP_STK_BACK( 0, RTMpGetArraySize),
|
---|
402 | SUPEXP_STK_BACK( 0, RTMpGetCount),
|
---|
403 | SUPEXP_STK_BACK( 0, RTMpGetMaxCpuId),
|
---|
404 | SUPEXP_STK_BACK( 0, RTMpGetOnlineCount),
|
---|
405 | SUPEXP_STK_BACK( 1, RTMpGetOnlineSet),
|
---|
406 | SUPEXP_STK_BACK( 1, RTMpGetSet),
|
---|
407 | SUPEXP_STK_BACK( 1, RTMpIsCpuOnline),
|
---|
408 | SUPEXP_STK_BACK( 1, RTMpIsCpuPossible),
|
---|
409 | SUPEXP_STK_BACK( 0, RTMpIsCpuWorkPending),
|
---|
410 | SUPEXP_STK_BACKF( 2, RTMpNotificationDeregister),
|
---|
411 | SUPEXP_STK_BACKF( 2, RTMpNotificationRegister),
|
---|
412 | SUPEXP_STK_BACKF( 3, RTMpOnAll),
|
---|
413 | SUPEXP_STK_BACKF( 3, RTMpOnOthers),
|
---|
414 | SUPEXP_STK_BACKF( 4, RTMpOnSpecific),
|
---|
415 | SUPEXP_STK_BACK( 1, RTMpPokeCpu),
|
---|
416 | SUPEXP_STK_OKAY( 4, RTNetIPv4AddDataChecksum),
|
---|
417 | SUPEXP_STK_OKAY( 2, RTNetIPv4AddTCPChecksum),
|
---|
418 | SUPEXP_STK_OKAY( 2, RTNetIPv4AddUDPChecksum),
|
---|
419 | SUPEXP_STK_OKAY( 1, RTNetIPv4FinalizeChecksum),
|
---|
420 | SUPEXP_STK_OKAY( 1, RTNetIPv4HdrChecksum),
|
---|
421 | SUPEXP_STK_OKAY( 4, RTNetIPv4IsDHCPValid),
|
---|
422 | SUPEXP_STK_OKAY( 4, RTNetIPv4IsHdrValid),
|
---|
423 | SUPEXP_STK_OKAY( 4, RTNetIPv4IsTCPSizeValid),
|
---|
424 | SUPEXP_STK_OKAY( 6, RTNetIPv4IsTCPValid),
|
---|
425 | SUPEXP_STK_OKAY( 3, RTNetIPv4IsUDPSizeValid),
|
---|
426 | SUPEXP_STK_OKAY( 5, RTNetIPv4IsUDPValid),
|
---|
427 | SUPEXP_STK_OKAY( 1, RTNetIPv4PseudoChecksum),
|
---|
428 | SUPEXP_STK_OKAY( 4, RTNetIPv4PseudoChecksumBits),
|
---|
429 | SUPEXP_STK_OKAY( 3, RTNetIPv4TCPChecksum),
|
---|
430 | SUPEXP_STK_OKAY( 3, RTNetIPv4UDPChecksum),
|
---|
431 | SUPEXP_STK_OKAY( 1, RTNetIPv6PseudoChecksum),
|
---|
432 | SUPEXP_STK_OKAY( 4, RTNetIPv6PseudoChecksumBits),
|
---|
433 | SUPEXP_STK_OKAY( 3, RTNetIPv6PseudoChecksumEx),
|
---|
434 | SUPEXP_STK_OKAY( 4, RTNetTCPChecksum),
|
---|
435 | SUPEXP_STK_OKAY( 2, RTNetUDPChecksum),
|
---|
436 | SUPEXP_STK_BACKF( 2, RTPowerNotificationDeregister),
|
---|
437 | SUPEXP_STK_BACKF( 2, RTPowerNotificationRegister),
|
---|
438 | SUPEXP_STK_BACK( 0, RTProcSelf),
|
---|
439 | SUPEXP_STK_BACK( 0, RTR0AssertPanicSystem),
|
---|
440 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS) || defined(RT_OS_WINDOWS)
|
---|
441 | SUPEXP_STK_BACK( 2, RTR0DbgKrnlInfoOpen), /* only-darwin, only-solaris, only-windows */
|
---|
442 | SUPEXP_STK_BACK( 5, RTR0DbgKrnlInfoQueryMember), /* only-darwin, only-solaris, only-windows */
|
---|
443 | # if defined(RT_OS_SOLARIS)
|
---|
444 | SUPEXP_STK_BACK( 4, RTR0DbgKrnlInfoQuerySize), /* only-solaris */
|
---|
445 | # endif
|
---|
446 | SUPEXP_STK_BACK( 4, RTR0DbgKrnlInfoQuerySymbol), /* only-darwin, only-solaris, only-windows */
|
---|
447 | SUPEXP_STK_BACK( 1, RTR0DbgKrnlInfoRelease), /* only-darwin, only-solaris, only-windows */
|
---|
448 | SUPEXP_STK_BACK( 1, RTR0DbgKrnlInfoRetain), /* only-darwin, only-solaris, only-windows */
|
---|
449 | #endif
|
---|
450 | SUPEXP_STK_BACK( 0, RTR0MemAreKrnlAndUsrDifferent),
|
---|
451 | SUPEXP_STK_BACK( 1, RTR0MemKernelIsValidAddr),
|
---|
452 | SUPEXP_STK_BACK( 3, RTR0MemKernelCopyFrom),
|
---|
453 | SUPEXP_STK_BACK( 3, RTR0MemKernelCopyTo),
|
---|
454 | SUPEXP_STK_OKAY( 1, RTR0MemObjAddress),
|
---|
455 | SUPEXP_STK_OKAY( 1, RTR0MemObjAddressR3),
|
---|
456 | SUPEXP_STK_BACK( 5, RTR0MemObjAllocContTag),
|
---|
457 | SUPEXP_STK_BACK( 5, RTR0MemObjAllocLargeTag),
|
---|
458 | SUPEXP_STK_BACK( 4, RTR0MemObjAllocLowTag),
|
---|
459 | SUPEXP_STK_BACK( 4, RTR0MemObjAllocPageTag),
|
---|
460 | SUPEXP_STK_BACK( 5, RTR0MemObjAllocPhysExTag),
|
---|
461 | SUPEXP_STK_BACK( 4, RTR0MemObjAllocPhysNCTag),
|
---|
462 | SUPEXP_STK_BACK( 4, RTR0MemObjAllocPhysTag),
|
---|
463 | SUPEXP_STK_BACK( 5, RTR0MemObjEnterPhysTag),
|
---|
464 | SUPEXP_STK_BACK( 2, RTR0MemObjFree),
|
---|
465 | SUPEXP_STK_BACK( 2, RTR0MemObjGetPagePhysAddr),
|
---|
466 | SUPEXP_STK_OKAY( 1, RTR0MemObjIsMapping),
|
---|
467 | SUPEXP_STK_BACK( 6, RTR0MemObjLockUserTag),
|
---|
468 | SUPEXP_STK_BACK( 5, RTR0MemObjLockKernelTag),
|
---|
469 | SUPEXP_STK_BACK( 8, RTR0MemObjMapKernelExTag),
|
---|
470 | SUPEXP_STK_BACK( 6, RTR0MemObjMapKernelTag),
|
---|
471 | SUPEXP_STK_BACK( 9, RTR0MemObjMapUserExTag),
|
---|
472 | SUPEXP_STK_BACK( 7, RTR0MemObjMapUserTag),
|
---|
473 | SUPEXP_STK_BACK( 4, RTR0MemObjProtect),
|
---|
474 | SUPEXP_STK_OKAY( 1, RTR0MemObjSize),
|
---|
475 | SUPEXP_STK_OKAY( 1, RTR0MemObjWasZeroInitialized),
|
---|
476 | SUPEXP_STK_BACK( 3, RTR0MemUserCopyFrom),
|
---|
477 | SUPEXP_STK_BACK( 3, RTR0MemUserCopyTo),
|
---|
478 | SUPEXP_STK_BACK( 1, RTR0MemUserIsValidAddr),
|
---|
479 | SUPEXP_STK_BACK( 0, RTR0ProcHandleSelf),
|
---|
480 | SUPEXP_STK_BACK( 1, RTSemEventCreate),
|
---|
481 | SUPEXP_STK_BACK( 1, RTSemEventDestroy),
|
---|
482 | SUPEXP_STK_BACK( 0, RTSemEventGetResolution),
|
---|
483 | SUPEXP_STK_BACK( 0, RTSemEventIsSignalSafe),
|
---|
484 | SUPEXP_STK_BACK( 1, RTSemEventMultiCreate),
|
---|
485 | SUPEXP_STK_BACK( 1, RTSemEventMultiDestroy),
|
---|
486 | SUPEXP_STK_BACK( 0, RTSemEventMultiGetResolution),
|
---|
487 | SUPEXP_STK_BACK( 0, RTSemEventMultiIsSignalSafe),
|
---|
488 | SUPEXP_STK_BACK( 1, RTSemEventMultiReset),
|
---|
489 | SUPEXP_STK_BACK( 1, RTSemEventMultiSignal),
|
---|
490 | SUPEXP_STK_BACK( 2, RTSemEventMultiWait),
|
---|
491 | SUPEXP_STK_BACK( 3, RTSemEventMultiWaitEx),
|
---|
492 | SUPEXP_STK_BACK( 7, RTSemEventMultiWaitExDebug),
|
---|
493 | SUPEXP_STK_BACK( 2, RTSemEventMultiWaitNoResume),
|
---|
494 | SUPEXP_STK_BACK( 1, RTSemEventSignal),
|
---|
495 | SUPEXP_STK_BACK( 2, RTSemEventWait),
|
---|
496 | SUPEXP_STK_BACK( 3, RTSemEventWaitEx),
|
---|
497 | SUPEXP_STK_BACK( 7, RTSemEventWaitExDebug),
|
---|
498 | SUPEXP_STK_BACK( 2, RTSemEventWaitNoResume),
|
---|
499 | SUPEXP_STK_BACK( 1, RTSemFastMutexCreate),
|
---|
500 | SUPEXP_STK_BACK( 1, RTSemFastMutexDestroy),
|
---|
501 | SUPEXP_STK_BACK( 1, RTSemFastMutexRelease),
|
---|
502 | SUPEXP_STK_BACK( 1, RTSemFastMutexRequest),
|
---|
503 | SUPEXP_STK_BACK( 1, RTSemMutexCreate),
|
---|
504 | SUPEXP_STK_BACK( 1, RTSemMutexDestroy),
|
---|
505 | SUPEXP_STK_BACK( 1, RTSemMutexRelease),
|
---|
506 | SUPEXP_STK_BACK( 2, RTSemMutexRequest),
|
---|
507 | SUPEXP_STK_BACK( 6, RTSemMutexRequestDebug),
|
---|
508 | SUPEXP_STK_BACK( 2, RTSemMutexRequestNoResume),
|
---|
509 | SUPEXP_STK_BACK( 6, RTSemMutexRequestNoResumeDebug),
|
---|
510 | SUPEXP_STK_BACK( 1, RTSpinlockAcquire),
|
---|
511 | SUPEXP_STK_BACK( 3, RTSpinlockCreate),
|
---|
512 | SUPEXP_STK_BACK( 1, RTSpinlockDestroy),
|
---|
513 | SUPEXP_STK_BACK( 1, RTSpinlockRelease),
|
---|
514 | SUPEXP_STK_OKAY( 3, RTStrCopy),
|
---|
515 | SUPEXP_STK_BACK( 2, RTStrDupTag),
|
---|
516 | SUPEXP_STK_BACK( 6, RTStrFormatNumber),
|
---|
517 | SUPEXP_STK_BACK( 1, RTStrFormatTypeDeregister),
|
---|
518 | SUPEXP_STK_BACKF( 3, RTStrFormatTypeRegister),
|
---|
519 | SUPEXP_STK_BACKF( 2, RTStrFormatTypeSetUser),
|
---|
520 | SUPEXP_STK_BACKF( 6, RTStrFormatV),
|
---|
521 | SUPEXP_STK_BACK( 1, RTStrFree),
|
---|
522 | SUPEXP_STK_OKAY( 3, RTStrNCmp),
|
---|
523 | SUPEXP_STK_BACKF( 6, RTStrPrintfExV),
|
---|
524 | SUPEXP_STK_BACK( 4, RTStrPrintfV),
|
---|
525 | SUPEXP_STK_BACKF( 6, RTStrPrintf2ExV),
|
---|
526 | SUPEXP_STK_BACK( 4, RTStrPrintf2V),
|
---|
527 | SUPEXP_STK_BACKF( 7, RTThreadCreate),
|
---|
528 | SUPEXP_STK_BACK( 1, RTThreadCtxHookIsEnabled),
|
---|
529 | SUPEXP_STK_BACKF( 4, RTThreadCtxHookCreate),
|
---|
530 | SUPEXP_STK_BACK( 1, RTThreadCtxHookDestroy),
|
---|
531 | SUPEXP_STK_BACK( 1, RTThreadCtxHookDisable),
|
---|
532 | SUPEXP_STK_BACK( 1, RTThreadCtxHookEnable),
|
---|
533 | SUPEXP_STK_BACK( 1, RTThreadGetName),
|
---|
534 | SUPEXP_STK_BACK( 1, RTThreadGetNative),
|
---|
535 | SUPEXP_STK_BACK( 1, RTThreadGetType),
|
---|
536 | SUPEXP_STK_BACK( 1, RTThreadIsInInterrupt),
|
---|
537 | SUPEXP_STK_BACK( 0, RTThreadNativeSelf),
|
---|
538 | SUPEXP_STK_BACK( 1, RTThreadPreemptDisable),
|
---|
539 | SUPEXP_STK_BACK( 1, RTThreadPreemptIsEnabled),
|
---|
540 | SUPEXP_STK_BACK( 1, RTThreadPreemptIsPending),
|
---|
541 | SUPEXP_STK_BACK( 0, RTThreadPreemptIsPendingTrusty),
|
---|
542 | SUPEXP_STK_BACK( 0, RTThreadPreemptIsPossible),
|
---|
543 | SUPEXP_STK_BACK( 1, RTThreadPreemptRestore),
|
---|
544 | SUPEXP_STK_BACK( 1, RTThreadQueryTerminationStatus),
|
---|
545 | SUPEXP_STK_BACK( 0, RTThreadSelf),
|
---|
546 | SUPEXP_STK_BACK( 0, RTThreadSelfName),
|
---|
547 | SUPEXP_STK_BACK( 1, RTThreadSleep),
|
---|
548 | SUPEXP_STK_BACK( 1, RTThreadUserReset),
|
---|
549 | SUPEXP_STK_BACK( 1, RTThreadUserSignal),
|
---|
550 | SUPEXP_STK_BACK( 2, RTThreadUserWait),
|
---|
551 | SUPEXP_STK_BACK( 2, RTThreadUserWaitNoResume),
|
---|
552 | SUPEXP_STK_BACK( 3, RTThreadWait),
|
---|
553 | SUPEXP_STK_BACK( 3, RTThreadWaitNoResume),
|
---|
554 | SUPEXP_STK_BACK( 0, RTThreadYield),
|
---|
555 | SUPEXP_STK_BACK( 1, RTTimeNow),
|
---|
556 | SUPEXP_STK_BACK( 0, RTTimerCanDoHighResolution),
|
---|
557 | SUPEXP_STK_BACK( 2, RTTimerChangeInterval),
|
---|
558 | SUPEXP_STK_BACKF( 4, RTTimerCreate),
|
---|
559 | SUPEXP_STK_BACKF( 5, RTTimerCreateEx),
|
---|
560 | SUPEXP_STK_BACK( 1, RTTimerDestroy),
|
---|
561 | SUPEXP_STK_BACK( 0, RTTimerGetSystemGranularity),
|
---|
562 | SUPEXP_STK_BACK( 1, RTTimerReleaseSystemGranularity),
|
---|
563 | SUPEXP_STK_BACK( 2, RTTimerRequestSystemGranularity),
|
---|
564 | SUPEXP_STK_BACK( 2, RTTimerStart),
|
---|
565 | SUPEXP_STK_BACK( 1, RTTimerStop),
|
---|
566 | SUPEXP_STK_BACK( 0, RTTimeSystemMilliTS),
|
---|
567 | SUPEXP_STK_BACK( 0, RTTimeSystemNanoTS),
|
---|
568 | SUPEXP_STK_OKAY( 2, RTUuidCompare),
|
---|
569 | SUPEXP_STK_OKAY( 2, RTUuidCompareStr),
|
---|
570 | SUPEXP_STK_OKAY( 2, RTUuidFromStr),
|
---|
571 | /* SED: END */
|
---|
572 | };
|
---|
573 |
|
---|
574 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD)
|
---|
575 | /**
|
---|
576 | * Drag in the rest of IRPT since we share it with the
|
---|
577 | * rest of the kernel modules on darwin.
|
---|
578 | */
|
---|
579 | struct CLANG11WERIDNESS { PFNRT pfn; } g_apfnVBoxDrvIPRTDeps[] =
|
---|
580 | {
|
---|
581 | /* VBoxNetAdp */
|
---|
582 | { (PFNRT)RTRandBytes },
|
---|
583 | /* VBoxUSB */
|
---|
584 | { (PFNRT)RTPathStripFilename },
|
---|
585 | #if !defined(RT_OS_FREEBSD)
|
---|
586 | { (PFNRT)RTHandleTableAlloc },
|
---|
587 | { (PFNRT)RTStrPurgeEncoding },
|
---|
588 | #endif
|
---|
589 | { NULL }
|
---|
590 | };
|
---|
591 | #endif /* RT_OS_DARWIN || RT_OS_SOLARIS || RT_OS_FREEBSD */
|
---|
592 |
|
---|
593 |
|
---|
594 |
|
---|
595 | /**
|
---|
596 | * Initializes the device extentsion structure.
|
---|
597 | *
|
---|
598 | * @returns IPRT status code.
|
---|
599 | * @param pDevExt The device extension to initialize.
|
---|
600 | * @param cbSession The size of the session structure. The size of
|
---|
601 | * SUPDRVSESSION may be smaller when SUPDRV_AGNOSTIC is
|
---|
602 | * defined because we're skipping the OS specific members
|
---|
603 | * then.
|
---|
604 | */
|
---|
605 | int VBOXCALL supdrvInitDevExt(PSUPDRVDEVEXT pDevExt, size_t cbSession)
|
---|
606 | {
|
---|
607 | int rc;
|
---|
608 |
|
---|
609 | #ifdef SUPDRV_WITH_RELEASE_LOGGER
|
---|
610 | /*
|
---|
611 | * Create the release log.
|
---|
612 | */
|
---|
613 | static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
|
---|
614 | PRTLOGGER pRelLogger;
|
---|
615 | rc = RTLogCreate(&pRelLogger, 0 /* fFlags */, "all",
|
---|
616 | "VBOX_RELEASE_LOG", RT_ELEMENTS(s_apszGroups), s_apszGroups, RTLOGDEST_STDOUT | RTLOGDEST_DEBUGGER, NULL);
|
---|
617 | if (RT_SUCCESS(rc))
|
---|
618 | RTLogRelSetDefaultInstance(pRelLogger);
|
---|
619 | /** @todo Add native hook for getting logger config parameters and setting
|
---|
620 | * them. On linux we should use the module parameter stuff... */
|
---|
621 | #endif
|
---|
622 |
|
---|
623 | #if (defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)) && !defined(VBOX_WITH_OLD_CPU_SUPPORT)
|
---|
624 | /*
|
---|
625 | * Require SSE2 to be present.
|
---|
626 | */
|
---|
627 | if (!(ASMCpuId_EDX(1) & X86_CPUID_FEATURE_EDX_SSE2))
|
---|
628 | {
|
---|
629 | SUPR0Printf("vboxdrv: Requires SSE2 (cpuid(0).EDX=%#x)\n", ASMCpuId_EDX(1));
|
---|
630 | return VERR_UNSUPPORTED_CPU;
|
---|
631 | }
|
---|
632 | #endif
|
---|
633 |
|
---|
634 | /*
|
---|
635 | * Initialize it.
|
---|
636 | */
|
---|
637 | memset(pDevExt, 0, sizeof(*pDevExt)); /* Does not wipe OS specific tail section of the structure. */
|
---|
638 | pDevExt->Spinlock = NIL_RTSPINLOCK;
|
---|
639 | pDevExt->hGipSpinlock = NIL_RTSPINLOCK;
|
---|
640 | pDevExt->hSessionHashTabSpinlock = NIL_RTSPINLOCK;
|
---|
641 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
642 | pDevExt->mtxLdr = NIL_RTSEMMUTEX;
|
---|
643 | #else
|
---|
644 | pDevExt->mtxLdr = NIL_RTSEMFASTMUTEX;
|
---|
645 | #endif
|
---|
646 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
647 | pDevExt->mtxGip = NIL_RTSEMMUTEX;
|
---|
648 | pDevExt->mtxTscDelta = NIL_RTSEMMUTEX;
|
---|
649 | #else
|
---|
650 | pDevExt->mtxGip = NIL_RTSEMFASTMUTEX;
|
---|
651 | pDevExt->mtxTscDelta = NIL_RTSEMFASTMUTEX;
|
---|
652 | #endif
|
---|
653 |
|
---|
654 | rc = RTSpinlockCreate(&pDevExt->Spinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "SUPDrvDevExt");
|
---|
655 | if (RT_SUCCESS(rc))
|
---|
656 | rc = RTSpinlockCreate(&pDevExt->hGipSpinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "SUPDrvGip");
|
---|
657 | if (RT_SUCCESS(rc))
|
---|
658 | rc = RTSpinlockCreate(&pDevExt->hSessionHashTabSpinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "SUPDrvSession");
|
---|
659 |
|
---|
660 | if (RT_SUCCESS(rc))
|
---|
661 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
662 | rc = RTSemMutexCreate(&pDevExt->mtxLdr);
|
---|
663 | #else
|
---|
664 | rc = RTSemFastMutexCreate(&pDevExt->mtxLdr);
|
---|
665 | #endif
|
---|
666 | if (RT_SUCCESS(rc))
|
---|
667 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
668 | rc = RTSemMutexCreate(&pDevExt->mtxTscDelta);
|
---|
669 | #else
|
---|
670 | rc = RTSemFastMutexCreate(&pDevExt->mtxTscDelta);
|
---|
671 | #endif
|
---|
672 | if (RT_SUCCESS(rc))
|
---|
673 | {
|
---|
674 | rc = RTSemFastMutexCreate(&pDevExt->mtxComponentFactory);
|
---|
675 | if (RT_SUCCESS(rc))
|
---|
676 | {
|
---|
677 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
678 | rc = RTSemMutexCreate(&pDevExt->mtxGip);
|
---|
679 | #else
|
---|
680 | rc = RTSemFastMutexCreate(&pDevExt->mtxGip);
|
---|
681 | #endif
|
---|
682 | if (RT_SUCCESS(rc))
|
---|
683 | {
|
---|
684 | rc = supdrvGipCreate(pDevExt);
|
---|
685 | if (RT_SUCCESS(rc))
|
---|
686 | {
|
---|
687 | rc = supdrvTracerInit(pDevExt);
|
---|
688 | if (RT_SUCCESS(rc))
|
---|
689 | {
|
---|
690 | pDevExt->pLdrInitImage = NULL;
|
---|
691 | pDevExt->hLdrInitThread = NIL_RTNATIVETHREAD;
|
---|
692 | pDevExt->hLdrTermThread = NIL_RTNATIVETHREAD;
|
---|
693 | pDevExt->u32Cookie = BIRD; /** @todo make this random? */
|
---|
694 | pDevExt->cbSession = (uint32_t)cbSession;
|
---|
695 |
|
---|
696 | /*
|
---|
697 | * Fixup the absolute symbols.
|
---|
698 | *
|
---|
699 | * Because of the table indexing assumptions we'll have a little #ifdef orgy
|
---|
700 | * here rather than distributing this to OS specific files. At least for now.
|
---|
701 | */
|
---|
702 | #ifdef RT_OS_DARWIN
|
---|
703 | # if ARCH_BITS == 32
|
---|
704 | if (SUPR0GetPagingMode() >= SUPPAGINGMODE_AMD64)
|
---|
705 | {
|
---|
706 | g_aFunctions[0].pfn = (void *)1; /* SUPR0AbsIs64bit */
|
---|
707 | g_aFunctions[1].pfn = (void *)0x80; /* SUPR0Abs64bitKernelCS - KERNEL64_CS, seg.h */
|
---|
708 | g_aFunctions[2].pfn = (void *)0x88; /* SUPR0Abs64bitKernelSS - KERNEL64_SS, seg.h */
|
---|
709 | g_aFunctions[3].pfn = (void *)0x88; /* SUPR0Abs64bitKernelDS - KERNEL64_SS, seg.h */
|
---|
710 | }
|
---|
711 | else
|
---|
712 | g_aFunctions[0].pfn = g_aFunctions[1].pfn = g_aFunctions[2].pfn = g_aFunctions[3].pfn = (void *)0;
|
---|
713 | g_aFunctions[4].pfn = (void *)0x08; /* SUPR0AbsKernelCS - KERNEL_CS, seg.h */
|
---|
714 | g_aFunctions[5].pfn = (void *)0x10; /* SUPR0AbsKernelSS - KERNEL_DS, seg.h */
|
---|
715 | g_aFunctions[6].pfn = (void *)0x10; /* SUPR0AbsKernelDS - KERNEL_DS, seg.h */
|
---|
716 | g_aFunctions[7].pfn = (void *)0x10; /* SUPR0AbsKernelES - KERNEL_DS, seg.h */
|
---|
717 | g_aFunctions[8].pfn = (void *)0x10; /* SUPR0AbsKernelFS - KERNEL_DS, seg.h */
|
---|
718 | g_aFunctions[9].pfn = (void *)0x48; /* SUPR0AbsKernelGS - CPU_DATA_GS, seg.h */
|
---|
719 | # else /* 64-bit darwin: */
|
---|
720 | g_aFunctions[0].pfn = (void *)1; /* SUPR0AbsIs64bit */
|
---|
721 | g_aFunctions[1].pfn = (void *)(uintptr_t)ASMGetCS(); /* SUPR0Abs64bitKernelCS */
|
---|
722 | g_aFunctions[2].pfn = (void *)(uintptr_t)ASMGetSS(); /* SUPR0Abs64bitKernelSS */
|
---|
723 | g_aFunctions[3].pfn = (void *)0; /* SUPR0Abs64bitKernelDS */
|
---|
724 | g_aFunctions[4].pfn = (void *)(uintptr_t)ASMGetCS(); /* SUPR0AbsKernelCS */
|
---|
725 | g_aFunctions[5].pfn = (void *)(uintptr_t)ASMGetSS(); /* SUPR0AbsKernelSS */
|
---|
726 | g_aFunctions[6].pfn = (void *)0; /* SUPR0AbsKernelDS */
|
---|
727 | g_aFunctions[7].pfn = (void *)0; /* SUPR0AbsKernelES */
|
---|
728 | g_aFunctions[8].pfn = (void *)0; /* SUPR0AbsKernelFS */
|
---|
729 | g_aFunctions[9].pfn = (void *)0; /* SUPR0AbsKernelGS */
|
---|
730 |
|
---|
731 | # endif
|
---|
732 | #else /* !RT_OS_DARWIN */
|
---|
733 | # if ARCH_BITS == 64
|
---|
734 | g_aFunctions[0].pfn = (void *)1; /* SUPR0AbsIs64bit */
|
---|
735 | g_aFunctions[1].pfn = (void *)(uintptr_t)ASMGetCS(); /* SUPR0Abs64bitKernelCS */
|
---|
736 | g_aFunctions[2].pfn = (void *)(uintptr_t)ASMGetSS(); /* SUPR0Abs64bitKernelSS */
|
---|
737 | g_aFunctions[3].pfn = (void *)(uintptr_t)ASMGetDS(); /* SUPR0Abs64bitKernelDS */
|
---|
738 | # else
|
---|
739 | g_aFunctions[0].pfn = g_aFunctions[1].pfn = g_aFunctions[2].pfn = g_aFunctions[3].pfn = (void *)0;
|
---|
740 | # endif
|
---|
741 | g_aFunctions[4].pfn = (void *)(uintptr_t)ASMGetCS(); /* SUPR0AbsKernelCS */
|
---|
742 | g_aFunctions[5].pfn = (void *)(uintptr_t)ASMGetSS(); /* SUPR0AbsKernelSS */
|
---|
743 | g_aFunctions[6].pfn = (void *)(uintptr_t)ASMGetDS(); /* SUPR0AbsKernelDS */
|
---|
744 | g_aFunctions[7].pfn = (void *)(uintptr_t)ASMGetES(); /* SUPR0AbsKernelES */
|
---|
745 | g_aFunctions[8].pfn = (void *)(uintptr_t)ASMGetFS(); /* SUPR0AbsKernelFS */
|
---|
746 | g_aFunctions[9].pfn = (void *)(uintptr_t)ASMGetGS(); /* SUPR0AbsKernelGS */
|
---|
747 | #endif /* !RT_OS_DARWIN */
|
---|
748 | return VINF_SUCCESS;
|
---|
749 | }
|
---|
750 |
|
---|
751 | supdrvGipDestroy(pDevExt);
|
---|
752 | }
|
---|
753 |
|
---|
754 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
755 | RTSemMutexDestroy(pDevExt->mtxGip);
|
---|
756 | pDevExt->mtxGip = NIL_RTSEMMUTEX;
|
---|
757 | #else
|
---|
758 | RTSemFastMutexDestroy(pDevExt->mtxGip);
|
---|
759 | pDevExt->mtxGip = NIL_RTSEMFASTMUTEX;
|
---|
760 | #endif
|
---|
761 | }
|
---|
762 | RTSemFastMutexDestroy(pDevExt->mtxComponentFactory);
|
---|
763 | pDevExt->mtxComponentFactory = NIL_RTSEMFASTMUTEX;
|
---|
764 | }
|
---|
765 | }
|
---|
766 |
|
---|
767 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
768 | RTSemMutexDestroy(pDevExt->mtxTscDelta);
|
---|
769 | pDevExt->mtxTscDelta = NIL_RTSEMMUTEX;
|
---|
770 | #else
|
---|
771 | RTSemFastMutexDestroy(pDevExt->mtxTscDelta);
|
---|
772 | pDevExt->mtxTscDelta = NIL_RTSEMFASTMUTEX;
|
---|
773 | #endif
|
---|
774 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
775 | RTSemMutexDestroy(pDevExt->mtxLdr);
|
---|
776 | pDevExt->mtxLdr = NIL_RTSEMMUTEX;
|
---|
777 | #else
|
---|
778 | RTSemFastMutexDestroy(pDevExt->mtxLdr);
|
---|
779 | pDevExt->mtxLdr = NIL_RTSEMFASTMUTEX;
|
---|
780 | #endif
|
---|
781 | RTSpinlockDestroy(pDevExt->Spinlock);
|
---|
782 | pDevExt->Spinlock = NIL_RTSPINLOCK;
|
---|
783 | RTSpinlockDestroy(pDevExt->hGipSpinlock);
|
---|
784 | pDevExt->hGipSpinlock = NIL_RTSPINLOCK;
|
---|
785 | RTSpinlockDestroy(pDevExt->hSessionHashTabSpinlock);
|
---|
786 | pDevExt->hSessionHashTabSpinlock = NIL_RTSPINLOCK;
|
---|
787 |
|
---|
788 | #ifdef SUPDRV_WITH_RELEASE_LOGGER
|
---|
789 | RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
|
---|
790 | RTLogDestroy(RTLogSetDefaultInstance(NULL));
|
---|
791 | #endif
|
---|
792 |
|
---|
793 | return rc;
|
---|
794 | }
|
---|
795 |
|
---|
796 |
|
---|
797 | /**
|
---|
798 | * Delete the device extension (e.g. cleanup members).
|
---|
799 | *
|
---|
800 | * @param pDevExt The device extension to delete.
|
---|
801 | */
|
---|
802 | void VBOXCALL supdrvDeleteDevExt(PSUPDRVDEVEXT pDevExt)
|
---|
803 | {
|
---|
804 | PSUPDRVOBJ pObj;
|
---|
805 | PSUPDRVUSAGE pUsage;
|
---|
806 |
|
---|
807 | /*
|
---|
808 | * Kill mutexes and spinlocks.
|
---|
809 | */
|
---|
810 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
811 | RTSemMutexDestroy(pDevExt->mtxGip);
|
---|
812 | pDevExt->mtxGip = NIL_RTSEMMUTEX;
|
---|
813 | RTSemMutexDestroy(pDevExt->mtxTscDelta);
|
---|
814 | pDevExt->mtxTscDelta = NIL_RTSEMMUTEX;
|
---|
815 | #else
|
---|
816 | RTSemFastMutexDestroy(pDevExt->mtxGip);
|
---|
817 | pDevExt->mtxGip = NIL_RTSEMFASTMUTEX;
|
---|
818 | RTSemFastMutexDestroy(pDevExt->mtxTscDelta);
|
---|
819 | pDevExt->mtxTscDelta = NIL_RTSEMFASTMUTEX;
|
---|
820 | #endif
|
---|
821 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
822 | RTSemMutexDestroy(pDevExt->mtxLdr);
|
---|
823 | pDevExt->mtxLdr = NIL_RTSEMMUTEX;
|
---|
824 | #else
|
---|
825 | RTSemFastMutexDestroy(pDevExt->mtxLdr);
|
---|
826 | pDevExt->mtxLdr = NIL_RTSEMFASTMUTEX;
|
---|
827 | #endif
|
---|
828 | RTSpinlockDestroy(pDevExt->Spinlock);
|
---|
829 | pDevExt->Spinlock = NIL_RTSPINLOCK;
|
---|
830 | RTSemFastMutexDestroy(pDevExt->mtxComponentFactory);
|
---|
831 | pDevExt->mtxComponentFactory = NIL_RTSEMFASTMUTEX;
|
---|
832 | RTSpinlockDestroy(pDevExt->hSessionHashTabSpinlock);
|
---|
833 | pDevExt->hSessionHashTabSpinlock = NIL_RTSPINLOCK;
|
---|
834 |
|
---|
835 | /*
|
---|
836 | * Free lists.
|
---|
837 | */
|
---|
838 | /* objects. */
|
---|
839 | pObj = pDevExt->pObjs;
|
---|
840 | Assert(!pObj); /* (can trigger on forced unloads) */
|
---|
841 | pDevExt->pObjs = NULL;
|
---|
842 | while (pObj)
|
---|
843 | {
|
---|
844 | void *pvFree = pObj;
|
---|
845 | pObj = pObj->pNext;
|
---|
846 | RTMemFree(pvFree);
|
---|
847 | }
|
---|
848 |
|
---|
849 | /* usage records. */
|
---|
850 | pUsage = pDevExt->pUsageFree;
|
---|
851 | pDevExt->pUsageFree = NULL;
|
---|
852 | while (pUsage)
|
---|
853 | {
|
---|
854 | void *pvFree = pUsage;
|
---|
855 | pUsage = pUsage->pNext;
|
---|
856 | RTMemFree(pvFree);
|
---|
857 | }
|
---|
858 |
|
---|
859 | /* kill the GIP. */
|
---|
860 | supdrvGipDestroy(pDevExt);
|
---|
861 | RTSpinlockDestroy(pDevExt->hGipSpinlock);
|
---|
862 | pDevExt->hGipSpinlock = NIL_RTSPINLOCK;
|
---|
863 |
|
---|
864 | supdrvTracerTerm(pDevExt);
|
---|
865 |
|
---|
866 | #ifdef SUPDRV_WITH_RELEASE_LOGGER
|
---|
867 | /* destroy the loggers. */
|
---|
868 | RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
|
---|
869 | RTLogDestroy(RTLogSetDefaultInstance(NULL));
|
---|
870 | #endif
|
---|
871 | }
|
---|
872 |
|
---|
873 |
|
---|
874 | /**
|
---|
875 | * Create session.
|
---|
876 | *
|
---|
877 | * @returns IPRT status code.
|
---|
878 | * @param pDevExt Device extension.
|
---|
879 | * @param fUser Flag indicating whether this is a user or kernel
|
---|
880 | * session.
|
---|
881 | * @param fUnrestricted Unrestricted access (system) or restricted access
|
---|
882 | * (user)?
|
---|
883 | * @param ppSession Where to store the pointer to the session data.
|
---|
884 | */
|
---|
885 | int VBOXCALL supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, bool fUnrestricted, PSUPDRVSESSION *ppSession)
|
---|
886 | {
|
---|
887 | int rc;
|
---|
888 | PSUPDRVSESSION pSession;
|
---|
889 |
|
---|
890 | if (!SUP_IS_DEVEXT_VALID(pDevExt))
|
---|
891 | return VERR_INVALID_PARAMETER;
|
---|
892 |
|
---|
893 | /*
|
---|
894 | * Allocate memory for the session data.
|
---|
895 | */
|
---|
896 | pSession = *ppSession = (PSUPDRVSESSION)RTMemAllocZ(pDevExt->cbSession);
|
---|
897 | if (pSession)
|
---|
898 | {
|
---|
899 | /* Initialize session data. */
|
---|
900 | rc = RTSpinlockCreate(&pSession->Spinlock, RTSPINLOCK_FLAGS_INTERRUPT_UNSAFE, "SUPDrvSession");
|
---|
901 | if (!rc)
|
---|
902 | {
|
---|
903 | rc = RTHandleTableCreateEx(&pSession->hHandleTable,
|
---|
904 | RTHANDLETABLE_FLAGS_LOCKED_IRQ_SAFE | RTHANDLETABLE_FLAGS_CONTEXT,
|
---|
905 | 1 /*uBase*/, 32768 /*cMax*/, supdrvSessionObjHandleRetain, pSession);
|
---|
906 | if (RT_SUCCESS(rc))
|
---|
907 | {
|
---|
908 | Assert(pSession->Spinlock != NIL_RTSPINLOCK);
|
---|
909 | pSession->pDevExt = pDevExt;
|
---|
910 | pSession->u32Cookie = BIRD_INV;
|
---|
911 | pSession->fUnrestricted = fUnrestricted;
|
---|
912 | /*pSession->fInHashTable = false; */
|
---|
913 | pSession->cRefs = 1;
|
---|
914 | /*pSession->pCommonNextHash = NULL;
|
---|
915 | pSession->ppOsSessionPtr = NULL; */
|
---|
916 | if (fUser)
|
---|
917 | {
|
---|
918 | pSession->Process = RTProcSelf();
|
---|
919 | pSession->R0Process = RTR0ProcHandleSelf();
|
---|
920 | }
|
---|
921 | else
|
---|
922 | {
|
---|
923 | pSession->Process = NIL_RTPROCESS;
|
---|
924 | pSession->R0Process = NIL_RTR0PROCESS;
|
---|
925 | }
|
---|
926 | /*pSession->pLdrUsage = NULL;
|
---|
927 | pSession->pVM = NULL;
|
---|
928 | pSession->pUsage = NULL;
|
---|
929 | pSession->pGip = NULL;
|
---|
930 | pSession->fGipReferenced = false;
|
---|
931 | pSession->Bundle.cUsed = 0; */
|
---|
932 | pSession->Uid = NIL_RTUID;
|
---|
933 | pSession->Gid = NIL_RTGID;
|
---|
934 | /*pSession->uTracerData = 0;*/
|
---|
935 | pSession->hTracerCaller = NIL_RTNATIVETHREAD;
|
---|
936 | RTListInit(&pSession->TpProviders);
|
---|
937 | /*pSession->cTpProviders = 0;*/
|
---|
938 | /*pSession->cTpProbesFiring = 0;*/
|
---|
939 | RTListInit(&pSession->TpUmods);
|
---|
940 | /*RT_ZERO(pSession->apTpLookupTable);*/
|
---|
941 |
|
---|
942 | VBOXDRV_SESSION_CREATE(pSession, fUser);
|
---|
943 | LogFlow(("Created session %p initial cookie=%#x\n", pSession, pSession->u32Cookie));
|
---|
944 | return VINF_SUCCESS;
|
---|
945 | }
|
---|
946 |
|
---|
947 | RTSpinlockDestroy(pSession->Spinlock);
|
---|
948 | }
|
---|
949 | RTMemFree(pSession);
|
---|
950 | *ppSession = NULL;
|
---|
951 | Log(("Failed to create spinlock, rc=%d!\n", rc));
|
---|
952 | }
|
---|
953 | else
|
---|
954 | rc = VERR_NO_MEMORY;
|
---|
955 |
|
---|
956 | return rc;
|
---|
957 | }
|
---|
958 |
|
---|
959 |
|
---|
960 | /**
|
---|
961 | * Cleans up the session in the context of the process to which it belongs, the
|
---|
962 | * caller will free the session and the session spinlock.
|
---|
963 | *
|
---|
964 | * This should normally occur when the session is closed or as the process
|
---|
965 | * exits. Careful reference counting in the OS specfic code makes sure that
|
---|
966 | * there cannot be any races between process/handle cleanup callbacks and
|
---|
967 | * threads doing I/O control calls.
|
---|
968 | *
|
---|
969 | * @param pDevExt The device extension.
|
---|
970 | * @param pSession Session data.
|
---|
971 | */
|
---|
972 | static void supdrvCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
|
---|
973 | {
|
---|
974 | int rc;
|
---|
975 | PSUPDRVBUNDLE pBundle;
|
---|
976 | LogFlow(("supdrvCleanupSession: pSession=%p\n", pSession));
|
---|
977 |
|
---|
978 | Assert(!pSession->fInHashTable);
|
---|
979 | Assert(!pSession->ppOsSessionPtr);
|
---|
980 | AssertLogRelMsg(pSession->R0Process == RTR0ProcHandleSelf() || pSession->R0Process == NIL_RTR0PROCESS,
|
---|
981 | ("R0Process=%p cur=%p; curpid=%u\n",
|
---|
982 | pSession->R0Process, RTR0ProcHandleSelf(), RTProcSelf()));
|
---|
983 |
|
---|
984 | /*
|
---|
985 | * Remove logger instances related to this session.
|
---|
986 | */
|
---|
987 | RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pSession);
|
---|
988 |
|
---|
989 | /*
|
---|
990 | * Destroy the handle table.
|
---|
991 | */
|
---|
992 | rc = RTHandleTableDestroy(pSession->hHandleTable, supdrvSessionObjHandleDelete, pSession);
|
---|
993 | AssertRC(rc);
|
---|
994 | pSession->hHandleTable = NIL_RTHANDLETABLE;
|
---|
995 |
|
---|
996 | /*
|
---|
997 | * Release object references made in this session.
|
---|
998 | * In theory there should be noone racing us in this session.
|
---|
999 | */
|
---|
1000 | Log2(("release objects - start\n"));
|
---|
1001 | if (pSession->pUsage)
|
---|
1002 | {
|
---|
1003 | PSUPDRVUSAGE pUsage;
|
---|
1004 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
1005 |
|
---|
1006 | while ((pUsage = pSession->pUsage) != NULL)
|
---|
1007 | {
|
---|
1008 | PSUPDRVOBJ pObj = pUsage->pObj;
|
---|
1009 | pSession->pUsage = pUsage->pNext;
|
---|
1010 |
|
---|
1011 | AssertMsg(pUsage->cUsage >= 1 && pObj->cUsage >= pUsage->cUsage, ("glob %d; sess %d\n", pObj->cUsage, pUsage->cUsage));
|
---|
1012 | if (pUsage->cUsage < pObj->cUsage)
|
---|
1013 | {
|
---|
1014 | pObj->cUsage -= pUsage->cUsage;
|
---|
1015 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
1016 | }
|
---|
1017 | else
|
---|
1018 | {
|
---|
1019 | /* Destroy the object and free the record. */
|
---|
1020 | if (pDevExt->pObjs == pObj)
|
---|
1021 | pDevExt->pObjs = pObj->pNext;
|
---|
1022 | else
|
---|
1023 | {
|
---|
1024 | PSUPDRVOBJ pObjPrev;
|
---|
1025 | for (pObjPrev = pDevExt->pObjs; pObjPrev; pObjPrev = pObjPrev->pNext)
|
---|
1026 | if (pObjPrev->pNext == pObj)
|
---|
1027 | {
|
---|
1028 | pObjPrev->pNext = pObj->pNext;
|
---|
1029 | break;
|
---|
1030 | }
|
---|
1031 | Assert(pObjPrev);
|
---|
1032 | }
|
---|
1033 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
1034 |
|
---|
1035 | Log(("supdrvCleanupSession: destroying %p/%d (%p/%p) cpid=%RTproc pid=%RTproc dtor=%p\n",
|
---|
1036 | pObj, pObj->enmType, pObj->pvUser1, pObj->pvUser2, pObj->CreatorProcess, RTProcSelf(), pObj->pfnDestructor));
|
---|
1037 | if (pObj->pfnDestructor)
|
---|
1038 | pObj->pfnDestructor(pObj, pObj->pvUser1, pObj->pvUser2);
|
---|
1039 | RTMemFree(pObj);
|
---|
1040 | }
|
---|
1041 |
|
---|
1042 | /* free it and continue. */
|
---|
1043 | RTMemFree(pUsage);
|
---|
1044 |
|
---|
1045 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
1046 | }
|
---|
1047 |
|
---|
1048 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
1049 | AssertMsg(!pSession->pUsage, ("Some buster reregistered an object during desturction!\n"));
|
---|
1050 | }
|
---|
1051 | Log2(("release objects - done\n"));
|
---|
1052 |
|
---|
1053 | /*
|
---|
1054 | * Make sure the associated VM pointers are NULL.
|
---|
1055 | */
|
---|
1056 | if (pSession->pSessionGVM || pSession->pSessionVM || pSession->pFastIoCtrlVM)
|
---|
1057 | {
|
---|
1058 | SUPR0Printf("supdrvCleanupSession: VM not disassociated! pSessionGVM=%p pSessionVM=%p pFastIoCtrlVM=%p\n",
|
---|
1059 | pSession->pSessionGVM, pSession->pSessionVM, pSession->pFastIoCtrlVM);
|
---|
1060 | pSession->pSessionGVM = NULL;
|
---|
1061 | pSession->pSessionVM = NULL;
|
---|
1062 | pSession->pFastIoCtrlVM = NULL;
|
---|
1063 | }
|
---|
1064 |
|
---|
1065 | /*
|
---|
1066 | * Do tracer cleanups related to this session.
|
---|
1067 | */
|
---|
1068 | Log2(("release tracer stuff - start\n"));
|
---|
1069 | supdrvTracerCleanupSession(pDevExt, pSession);
|
---|
1070 | Log2(("release tracer stuff - end\n"));
|
---|
1071 |
|
---|
1072 | /*
|
---|
1073 | * Release memory allocated in the session.
|
---|
1074 | *
|
---|
1075 | * We do not serialize this as we assume that the application will
|
---|
1076 | * not allocated memory while closing the file handle object.
|
---|
1077 | */
|
---|
1078 | Log2(("freeing memory:\n"));
|
---|
1079 | pBundle = &pSession->Bundle;
|
---|
1080 | while (pBundle)
|
---|
1081 | {
|
---|
1082 | PSUPDRVBUNDLE pToFree;
|
---|
1083 | unsigned i;
|
---|
1084 |
|
---|
1085 | /*
|
---|
1086 | * Check and unlock all entries in the bundle.
|
---|
1087 | */
|
---|
1088 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
1089 | {
|
---|
1090 | if (pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ)
|
---|
1091 | {
|
---|
1092 | Log2(("eType=%d pvR0=%p pvR3=%p cb=%ld\n", pBundle->aMem[i].eType, RTR0MemObjAddress(pBundle->aMem[i].MemObj),
|
---|
1093 | (void *)RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3), (long)RTR0MemObjSize(pBundle->aMem[i].MemObj)));
|
---|
1094 | if (pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ)
|
---|
1095 | {
|
---|
1096 | rc = RTR0MemObjFree(pBundle->aMem[i].MapObjR3, false);
|
---|
1097 | AssertRC(rc); /** @todo figure out how to handle this. */
|
---|
1098 | pBundle->aMem[i].MapObjR3 = NIL_RTR0MEMOBJ;
|
---|
1099 | }
|
---|
1100 | rc = RTR0MemObjFree(pBundle->aMem[i].MemObj, true /* fFreeMappings */);
|
---|
1101 | AssertRC(rc); /** @todo figure out how to handle this. */
|
---|
1102 | pBundle->aMem[i].MemObj = NIL_RTR0MEMOBJ;
|
---|
1103 | pBundle->aMem[i].eType = MEMREF_TYPE_UNUSED;
|
---|
1104 | }
|
---|
1105 | }
|
---|
1106 |
|
---|
1107 | /*
|
---|
1108 | * Advance and free previous bundle.
|
---|
1109 | */
|
---|
1110 | pToFree = pBundle;
|
---|
1111 | pBundle = pBundle->pNext;
|
---|
1112 |
|
---|
1113 | pToFree->pNext = NULL;
|
---|
1114 | pToFree->cUsed = 0;
|
---|
1115 | if (pToFree != &pSession->Bundle)
|
---|
1116 | RTMemFree(pToFree);
|
---|
1117 | }
|
---|
1118 | Log2(("freeing memory - done\n"));
|
---|
1119 |
|
---|
1120 | /*
|
---|
1121 | * Deregister component factories.
|
---|
1122 | */
|
---|
1123 | RTSemFastMutexRequest(pDevExt->mtxComponentFactory);
|
---|
1124 | Log2(("deregistering component factories:\n"));
|
---|
1125 | if (pDevExt->pComponentFactoryHead)
|
---|
1126 | {
|
---|
1127 | PSUPDRVFACTORYREG pPrev = NULL;
|
---|
1128 | PSUPDRVFACTORYREG pCur = pDevExt->pComponentFactoryHead;
|
---|
1129 | while (pCur)
|
---|
1130 | {
|
---|
1131 | if (pCur->pSession == pSession)
|
---|
1132 | {
|
---|
1133 | /* unlink it */
|
---|
1134 | PSUPDRVFACTORYREG pNext = pCur->pNext;
|
---|
1135 | if (pPrev)
|
---|
1136 | pPrev->pNext = pNext;
|
---|
1137 | else
|
---|
1138 | pDevExt->pComponentFactoryHead = pNext;
|
---|
1139 |
|
---|
1140 | /* free it */
|
---|
1141 | pCur->pNext = NULL;
|
---|
1142 | pCur->pSession = NULL;
|
---|
1143 | pCur->pFactory = NULL;
|
---|
1144 | RTMemFree(pCur);
|
---|
1145 |
|
---|
1146 | /* next */
|
---|
1147 | pCur = pNext;
|
---|
1148 | }
|
---|
1149 | else
|
---|
1150 | {
|
---|
1151 | /* next */
|
---|
1152 | pPrev = pCur;
|
---|
1153 | pCur = pCur->pNext;
|
---|
1154 | }
|
---|
1155 | }
|
---|
1156 | }
|
---|
1157 | RTSemFastMutexRelease(pDevExt->mtxComponentFactory);
|
---|
1158 | Log2(("deregistering component factories - done\n"));
|
---|
1159 |
|
---|
1160 | /*
|
---|
1161 | * Loaded images needs to be dereferenced and possibly freed up.
|
---|
1162 | */
|
---|
1163 | supdrvLdrLock(pDevExt);
|
---|
1164 | Log2(("freeing images:\n"));
|
---|
1165 | if (pSession->pLdrUsage)
|
---|
1166 | {
|
---|
1167 | PSUPDRVLDRUSAGE pUsage = pSession->pLdrUsage;
|
---|
1168 | pSession->pLdrUsage = NULL;
|
---|
1169 | while (pUsage)
|
---|
1170 | {
|
---|
1171 | void *pvFree = pUsage;
|
---|
1172 | PSUPDRVLDRIMAGE pImage = pUsage->pImage;
|
---|
1173 | uint32_t cUsage = pUsage->cRing0Usage + pUsage->cRing3Usage;
|
---|
1174 | if (pImage->cImgUsage > cUsage)
|
---|
1175 | supdrvLdrSubtractUsage(pDevExt, pImage, cUsage);
|
---|
1176 | else
|
---|
1177 | supdrvLdrFree(pDevExt, pImage);
|
---|
1178 | pUsage->pImage = NULL;
|
---|
1179 | pUsage = pUsage->pNext;
|
---|
1180 | RTMemFree(pvFree);
|
---|
1181 | }
|
---|
1182 | }
|
---|
1183 | supdrvLdrUnlock(pDevExt);
|
---|
1184 | Log2(("freeing images - done\n"));
|
---|
1185 |
|
---|
1186 | /*
|
---|
1187 | * Unmap the GIP.
|
---|
1188 | */
|
---|
1189 | Log2(("umapping GIP:\n"));
|
---|
1190 | if (pSession->GipMapObjR3 != NIL_RTR0MEMOBJ)
|
---|
1191 | {
|
---|
1192 | SUPR0GipUnmap(pSession);
|
---|
1193 | pSession->fGipReferenced = 0;
|
---|
1194 | }
|
---|
1195 | Log2(("umapping GIP - done\n"));
|
---|
1196 | }
|
---|
1197 |
|
---|
1198 |
|
---|
1199 | /**
|
---|
1200 | * Common code for freeing a session when the reference count reaches zero.
|
---|
1201 | *
|
---|
1202 | * @param pDevExt Device extension.
|
---|
1203 | * @param pSession Session data.
|
---|
1204 | * This data will be freed by this routine.
|
---|
1205 | */
|
---|
1206 | static void supdrvDestroySession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
|
---|
1207 | {
|
---|
1208 | VBOXDRV_SESSION_CLOSE(pSession);
|
---|
1209 |
|
---|
1210 | /*
|
---|
1211 | * Cleanup the session first.
|
---|
1212 | */
|
---|
1213 | supdrvCleanupSession(pDevExt, pSession);
|
---|
1214 | supdrvOSCleanupSession(pDevExt, pSession);
|
---|
1215 |
|
---|
1216 | /*
|
---|
1217 | * Free the rest of the session stuff.
|
---|
1218 | */
|
---|
1219 | RTSpinlockDestroy(pSession->Spinlock);
|
---|
1220 | pSession->Spinlock = NIL_RTSPINLOCK;
|
---|
1221 | pSession->pDevExt = NULL;
|
---|
1222 | RTMemFree(pSession);
|
---|
1223 | LogFlow(("supdrvDestroySession: returns\n"));
|
---|
1224 | }
|
---|
1225 |
|
---|
1226 |
|
---|
1227 | /**
|
---|
1228 | * Inserts the session into the global hash table.
|
---|
1229 | *
|
---|
1230 | * @retval VINF_SUCCESS on success.
|
---|
1231 | * @retval VERR_WRONG_ORDER if the session was already inserted (asserted).
|
---|
1232 | * @retval VERR_INVALID_PARAMETER if the session handle is invalid or a ring-0
|
---|
1233 | * session (asserted).
|
---|
1234 | * @retval VERR_DUPLICATE if there is already a session for that pid.
|
---|
1235 | *
|
---|
1236 | * @param pDevExt The device extension.
|
---|
1237 | * @param pSession The session.
|
---|
1238 | * @param ppOsSessionPtr Pointer to the OS session pointer, if any is
|
---|
1239 | * available and used. This will set to point to the
|
---|
1240 | * session while under the protection of the session
|
---|
1241 | * hash table spinlock. It will also be kept in
|
---|
1242 | * PSUPDRVSESSION::ppOsSessionPtr for lookup and
|
---|
1243 | * cleanup use.
|
---|
1244 | * @param pvUser Argument for supdrvOSSessionHashTabInserted.
|
---|
1245 | */
|
---|
1246 | int VBOXCALL supdrvSessionHashTabInsert(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVSESSION *ppOsSessionPtr,
|
---|
1247 | void *pvUser)
|
---|
1248 | {
|
---|
1249 | PSUPDRVSESSION pCur;
|
---|
1250 | unsigned iHash;
|
---|
1251 |
|
---|
1252 | /*
|
---|
1253 | * Validate input.
|
---|
1254 | */
|
---|
1255 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
1256 | AssertReturn(pSession->R0Process != NIL_RTR0PROCESS, VERR_INVALID_PARAMETER);
|
---|
1257 |
|
---|
1258 | /*
|
---|
1259 | * Calculate the hash table index and acquire the spinlock.
|
---|
1260 | */
|
---|
1261 | iHash = SUPDRV_SESSION_HASH(pSession->Process);
|
---|
1262 |
|
---|
1263 | RTSpinlockAcquire(pDevExt->hSessionHashTabSpinlock);
|
---|
1264 |
|
---|
1265 | /*
|
---|
1266 | * If there are a collisions, we need to carefully check if we got a
|
---|
1267 | * duplicate. There can only be one open session per process.
|
---|
1268 | */
|
---|
1269 | pCur = pDevExt->apSessionHashTab[iHash];
|
---|
1270 | if (pCur)
|
---|
1271 | {
|
---|
1272 | while (pCur && pCur->Process != pSession->Process)
|
---|
1273 | pCur = pCur->pCommonNextHash;
|
---|
1274 |
|
---|
1275 | if (pCur)
|
---|
1276 | {
|
---|
1277 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1278 | if (pCur == pSession)
|
---|
1279 | {
|
---|
1280 | Assert(pSession->fInHashTable);
|
---|
1281 | AssertFailed();
|
---|
1282 | return VERR_WRONG_ORDER;
|
---|
1283 | }
|
---|
1284 | Assert(!pSession->fInHashTable);
|
---|
1285 | if (pCur->R0Process == pSession->R0Process)
|
---|
1286 | return VERR_RESOURCE_IN_USE;
|
---|
1287 | return VERR_DUPLICATE;
|
---|
1288 | }
|
---|
1289 | }
|
---|
1290 | Assert(!pSession->fInHashTable);
|
---|
1291 | Assert(!pSession->ppOsSessionPtr);
|
---|
1292 |
|
---|
1293 | /*
|
---|
1294 | * Insert it, doing a callout to the OS specific code in case it has
|
---|
1295 | * anything it wishes to do while we're holding the spinlock.
|
---|
1296 | */
|
---|
1297 | pSession->pCommonNextHash = pDevExt->apSessionHashTab[iHash];
|
---|
1298 | pDevExt->apSessionHashTab[iHash] = pSession;
|
---|
1299 | pSession->fInHashTable = true;
|
---|
1300 | ASMAtomicIncS32(&pDevExt->cSessions);
|
---|
1301 |
|
---|
1302 | pSession->ppOsSessionPtr = ppOsSessionPtr;
|
---|
1303 | if (ppOsSessionPtr)
|
---|
1304 | ASMAtomicWritePtr(ppOsSessionPtr, pSession);
|
---|
1305 |
|
---|
1306 | supdrvOSSessionHashTabInserted(pDevExt, pSession, pvUser);
|
---|
1307 |
|
---|
1308 | /*
|
---|
1309 | * Retain a reference for the pointer in the session table.
|
---|
1310 | */
|
---|
1311 | ASMAtomicIncU32(&pSession->cRefs);
|
---|
1312 |
|
---|
1313 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1314 | return VINF_SUCCESS;
|
---|
1315 | }
|
---|
1316 |
|
---|
1317 |
|
---|
1318 | /**
|
---|
1319 | * Removes the session from the global hash table.
|
---|
1320 | *
|
---|
1321 | * @retval VINF_SUCCESS on success.
|
---|
1322 | * @retval VERR_NOT_FOUND if the session was already removed (asserted).
|
---|
1323 | * @retval VERR_INVALID_PARAMETER if the session handle is invalid or a ring-0
|
---|
1324 | * session (asserted).
|
---|
1325 | *
|
---|
1326 | * @param pDevExt The device extension.
|
---|
1327 | * @param pSession The session. The caller is expected to have a reference
|
---|
1328 | * to this so it won't croak on us when we release the hash
|
---|
1329 | * table reference.
|
---|
1330 | * @param pvUser OS specific context value for the
|
---|
1331 | * supdrvOSSessionHashTabInserted callback.
|
---|
1332 | */
|
---|
1333 | int VBOXCALL supdrvSessionHashTabRemove(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, void *pvUser)
|
---|
1334 | {
|
---|
1335 | PSUPDRVSESSION pCur;
|
---|
1336 | unsigned iHash;
|
---|
1337 | int32_t cRefs;
|
---|
1338 |
|
---|
1339 | /*
|
---|
1340 | * Validate input.
|
---|
1341 | */
|
---|
1342 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
1343 | AssertReturn(pSession->R0Process != NIL_RTR0PROCESS, VERR_INVALID_PARAMETER);
|
---|
1344 |
|
---|
1345 | /*
|
---|
1346 | * Calculate the hash table index and acquire the spinlock.
|
---|
1347 | */
|
---|
1348 | iHash = SUPDRV_SESSION_HASH(pSession->Process);
|
---|
1349 |
|
---|
1350 | RTSpinlockAcquire(pDevExt->hSessionHashTabSpinlock);
|
---|
1351 |
|
---|
1352 | /*
|
---|
1353 | * Unlink it.
|
---|
1354 | */
|
---|
1355 | pCur = pDevExt->apSessionHashTab[iHash];
|
---|
1356 | if (pCur == pSession)
|
---|
1357 | pDevExt->apSessionHashTab[iHash] = pSession->pCommonNextHash;
|
---|
1358 | else
|
---|
1359 | {
|
---|
1360 | PSUPDRVSESSION pPrev = pCur;
|
---|
1361 | while (pCur && pCur != pSession)
|
---|
1362 | {
|
---|
1363 | pPrev = pCur;
|
---|
1364 | pCur = pCur->pCommonNextHash;
|
---|
1365 | }
|
---|
1366 | if (pCur)
|
---|
1367 | pPrev->pCommonNextHash = pCur->pCommonNextHash;
|
---|
1368 | else
|
---|
1369 | {
|
---|
1370 | Assert(!pSession->fInHashTable);
|
---|
1371 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1372 | return VERR_NOT_FOUND;
|
---|
1373 | }
|
---|
1374 | }
|
---|
1375 |
|
---|
1376 | pSession->pCommonNextHash = NULL;
|
---|
1377 | pSession->fInHashTable = false;
|
---|
1378 |
|
---|
1379 | ASMAtomicDecS32(&pDevExt->cSessions);
|
---|
1380 |
|
---|
1381 | /*
|
---|
1382 | * Clear OS specific session pointer if available and do the OS callback.
|
---|
1383 | */
|
---|
1384 | if (pSession->ppOsSessionPtr)
|
---|
1385 | {
|
---|
1386 | ASMAtomicCmpXchgPtr(pSession->ppOsSessionPtr, NULL, pSession);
|
---|
1387 | pSession->ppOsSessionPtr = NULL;
|
---|
1388 | }
|
---|
1389 |
|
---|
1390 | supdrvOSSessionHashTabRemoved(pDevExt, pSession, pvUser);
|
---|
1391 |
|
---|
1392 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1393 |
|
---|
1394 | /*
|
---|
1395 | * Drop the reference the hash table had to the session. This shouldn't
|
---|
1396 | * be the last reference!
|
---|
1397 | */
|
---|
1398 | cRefs = ASMAtomicDecU32(&pSession->cRefs);
|
---|
1399 | Assert(cRefs > 0 && cRefs < _1M);
|
---|
1400 | if (cRefs == 0)
|
---|
1401 | supdrvDestroySession(pDevExt, pSession);
|
---|
1402 |
|
---|
1403 | return VINF_SUCCESS;
|
---|
1404 | }
|
---|
1405 |
|
---|
1406 |
|
---|
1407 | /**
|
---|
1408 | * Looks up the session for the current process in the global hash table or in
|
---|
1409 | * OS specific pointer.
|
---|
1410 | *
|
---|
1411 | * @returns Pointer to the session with a reference that the caller must
|
---|
1412 | * release. If no valid session was found, NULL is returned.
|
---|
1413 | *
|
---|
1414 | * @param pDevExt The device extension.
|
---|
1415 | * @param Process The process ID.
|
---|
1416 | * @param R0Process The ring-0 process handle.
|
---|
1417 | * @param ppOsSessionPtr The OS session pointer if available. If not NULL,
|
---|
1418 | * this is used instead of the hash table. For
|
---|
1419 | * additional safety it must then be equal to the
|
---|
1420 | * SUPDRVSESSION::ppOsSessionPtr member.
|
---|
1421 | * This can be NULL even if the OS has a session
|
---|
1422 | * pointer.
|
---|
1423 | */
|
---|
1424 | PSUPDRVSESSION VBOXCALL supdrvSessionHashTabLookup(PSUPDRVDEVEXT pDevExt, RTPROCESS Process, RTR0PROCESS R0Process,
|
---|
1425 | PSUPDRVSESSION *ppOsSessionPtr)
|
---|
1426 | {
|
---|
1427 | PSUPDRVSESSION pCur;
|
---|
1428 | unsigned iHash;
|
---|
1429 |
|
---|
1430 | /*
|
---|
1431 | * Validate input.
|
---|
1432 | */
|
---|
1433 | AssertReturn(R0Process != NIL_RTR0PROCESS, NULL);
|
---|
1434 |
|
---|
1435 | /*
|
---|
1436 | * Calculate the hash table index and acquire the spinlock.
|
---|
1437 | */
|
---|
1438 | iHash = SUPDRV_SESSION_HASH(Process);
|
---|
1439 |
|
---|
1440 | RTSpinlockAcquire(pDevExt->hSessionHashTabSpinlock);
|
---|
1441 |
|
---|
1442 | /*
|
---|
1443 | * If an OS session pointer is provided, always use it.
|
---|
1444 | */
|
---|
1445 | if (ppOsSessionPtr)
|
---|
1446 | {
|
---|
1447 | pCur = *ppOsSessionPtr;
|
---|
1448 | if ( pCur
|
---|
1449 | && ( pCur->ppOsSessionPtr != ppOsSessionPtr
|
---|
1450 | || pCur->Process != Process
|
---|
1451 | || pCur->R0Process != R0Process) )
|
---|
1452 | pCur = NULL;
|
---|
1453 | }
|
---|
1454 | else
|
---|
1455 | {
|
---|
1456 | /*
|
---|
1457 | * Otherwise, do the hash table lookup.
|
---|
1458 | */
|
---|
1459 | pCur = pDevExt->apSessionHashTab[iHash];
|
---|
1460 | while ( pCur
|
---|
1461 | && ( pCur->Process != Process
|
---|
1462 | || pCur->R0Process != R0Process) )
|
---|
1463 | pCur = pCur->pCommonNextHash;
|
---|
1464 | }
|
---|
1465 |
|
---|
1466 | /*
|
---|
1467 | * Retain the session.
|
---|
1468 | */
|
---|
1469 | if (pCur)
|
---|
1470 | {
|
---|
1471 | uint32_t cRefs = ASMAtomicIncU32(&pCur->cRefs);
|
---|
1472 | NOREF(cRefs);
|
---|
1473 | Assert(cRefs > 1 && cRefs < _1M);
|
---|
1474 | }
|
---|
1475 |
|
---|
1476 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1477 |
|
---|
1478 | return pCur;
|
---|
1479 | }
|
---|
1480 |
|
---|
1481 |
|
---|
1482 | /**
|
---|
1483 | * Retain a session to make sure it doesn't go away while it is in use.
|
---|
1484 | *
|
---|
1485 | * @returns New reference count on success, UINT32_MAX on failure.
|
---|
1486 | * @param pSession Session data.
|
---|
1487 | */
|
---|
1488 | uint32_t VBOXCALL supdrvSessionRetain(PSUPDRVSESSION pSession)
|
---|
1489 | {
|
---|
1490 | uint32_t cRefs;
|
---|
1491 | AssertPtrReturn(pSession, UINT32_MAX);
|
---|
1492 | AssertReturn(SUP_IS_SESSION_VALID(pSession), UINT32_MAX);
|
---|
1493 |
|
---|
1494 | cRefs = ASMAtomicIncU32(&pSession->cRefs);
|
---|
1495 | AssertMsg(cRefs > 1 && cRefs < _1M, ("%#x %p\n", cRefs, pSession));
|
---|
1496 | return cRefs;
|
---|
1497 | }
|
---|
1498 |
|
---|
1499 |
|
---|
1500 | /**
|
---|
1501 | * Releases a given session.
|
---|
1502 | *
|
---|
1503 | * @returns New reference count on success (0 if closed), UINT32_MAX on failure.
|
---|
1504 | * @param pSession Session data.
|
---|
1505 | */
|
---|
1506 | uint32_t VBOXCALL supdrvSessionRelease(PSUPDRVSESSION pSession)
|
---|
1507 | {
|
---|
1508 | uint32_t cRefs;
|
---|
1509 | AssertPtrReturn(pSession, UINT32_MAX);
|
---|
1510 | AssertReturn(SUP_IS_SESSION_VALID(pSession), UINT32_MAX);
|
---|
1511 |
|
---|
1512 | cRefs = ASMAtomicDecU32(&pSession->cRefs);
|
---|
1513 | AssertMsg(cRefs < _1M, ("%#x %p\n", cRefs, pSession));
|
---|
1514 | if (cRefs == 0)
|
---|
1515 | supdrvDestroySession(pSession->pDevExt, pSession);
|
---|
1516 | return cRefs;
|
---|
1517 | }
|
---|
1518 |
|
---|
1519 |
|
---|
1520 | /**
|
---|
1521 | * RTHandleTableDestroy callback used by supdrvCleanupSession.
|
---|
1522 | *
|
---|
1523 | * @returns IPRT status code, see SUPR0ObjAddRef.
|
---|
1524 | * @param hHandleTable The handle table handle. Ignored.
|
---|
1525 | * @param pvObj The object pointer.
|
---|
1526 | * @param pvCtx Context, the handle type. Ignored.
|
---|
1527 | * @param pvUser Session pointer.
|
---|
1528 | */
|
---|
1529 | static DECLCALLBACK(int) supdrvSessionObjHandleRetain(RTHANDLETABLE hHandleTable, void *pvObj, void *pvCtx, void *pvUser)
|
---|
1530 | {
|
---|
1531 | NOREF(pvCtx);
|
---|
1532 | NOREF(hHandleTable);
|
---|
1533 | return SUPR0ObjAddRefEx(pvObj, (PSUPDRVSESSION)pvUser, true /*fNoBlocking*/);
|
---|
1534 | }
|
---|
1535 |
|
---|
1536 |
|
---|
1537 | /**
|
---|
1538 | * RTHandleTableDestroy callback used by supdrvCleanupSession.
|
---|
1539 | *
|
---|
1540 | * @param hHandleTable The handle table handle. Ignored.
|
---|
1541 | * @param h The handle value. Ignored.
|
---|
1542 | * @param pvObj The object pointer.
|
---|
1543 | * @param pvCtx Context, the handle type. Ignored.
|
---|
1544 | * @param pvUser Session pointer.
|
---|
1545 | */
|
---|
1546 | static DECLCALLBACK(void) supdrvSessionObjHandleDelete(RTHANDLETABLE hHandleTable, uint32_t h, void *pvObj, void *pvCtx, void *pvUser)
|
---|
1547 | {
|
---|
1548 | NOREF(pvCtx);
|
---|
1549 | NOREF(h);
|
---|
1550 | NOREF(hHandleTable);
|
---|
1551 | SUPR0ObjRelease(pvObj, (PSUPDRVSESSION)pvUser);
|
---|
1552 | }
|
---|
1553 |
|
---|
1554 |
|
---|
1555 | /**
|
---|
1556 | * Fast path I/O Control worker.
|
---|
1557 | *
|
---|
1558 | * @returns VBox status code that should be passed down to ring-3 unchanged.
|
---|
1559 | * @param uOperation SUP_VMMR0_DO_XXX (not the I/O control number!).
|
---|
1560 | * @param idCpu VMCPU id.
|
---|
1561 | * @param pDevExt Device extention.
|
---|
1562 | * @param pSession Session data.
|
---|
1563 | */
|
---|
1564 | int VBOXCALL supdrvIOCtlFast(uintptr_t uOperation, VMCPUID idCpu, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
|
---|
1565 | {
|
---|
1566 | /*
|
---|
1567 | * Validate input and check that the VM has a session.
|
---|
1568 | */
|
---|
1569 | if (RT_LIKELY(RT_VALID_PTR(pSession)))
|
---|
1570 | {
|
---|
1571 | PVM pVM = pSession->pSessionVM;
|
---|
1572 | PGVM pGVM = pSession->pSessionGVM;
|
---|
1573 | if (RT_LIKELY( pGVM != NULL
|
---|
1574 | && pVM != NULL
|
---|
1575 | && pVM == pSession->pFastIoCtrlVM))
|
---|
1576 | {
|
---|
1577 | if (RT_LIKELY(pDevExt->pfnVMMR0EntryFast))
|
---|
1578 | {
|
---|
1579 | /*
|
---|
1580 | * Make the call.
|
---|
1581 | */
|
---|
1582 | pDevExt->pfnVMMR0EntryFast(pGVM, pVM, idCpu, uOperation);
|
---|
1583 | return VINF_SUCCESS;
|
---|
1584 | }
|
---|
1585 |
|
---|
1586 | SUPR0Printf("supdrvIOCtlFast: pfnVMMR0EntryFast is NULL\n");
|
---|
1587 | }
|
---|
1588 | else
|
---|
1589 | SUPR0Printf("supdrvIOCtlFast: Misconfig session: pGVM=%p pVM=%p pFastIoCtrlVM=%p\n",
|
---|
1590 | pGVM, pVM, pSession->pFastIoCtrlVM);
|
---|
1591 | }
|
---|
1592 | else
|
---|
1593 | SUPR0Printf("supdrvIOCtlFast: Bad session pointer %p\n", pSession);
|
---|
1594 | return VERR_INTERNAL_ERROR;
|
---|
1595 | }
|
---|
1596 |
|
---|
1597 |
|
---|
1598 | /**
|
---|
1599 | * Helper for supdrvIOCtl used to validate module names passed to SUP_IOCTL_LDR_OPEN.
|
---|
1600 | *
|
---|
1601 | * Check if pszStr contains any character of pszChars. We would use strpbrk
|
---|
1602 | * here if this function would be contained in the RedHat kABI white list, see
|
---|
1603 | * http://www.kerneldrivers.org/RHEL5.
|
---|
1604 | *
|
---|
1605 | * @returns true if fine, false if not.
|
---|
1606 | * @param pszName The module name to check.
|
---|
1607 | */
|
---|
1608 | static bool supdrvIsLdrModuleNameValid(const char *pszName)
|
---|
1609 | {
|
---|
1610 | int chCur;
|
---|
1611 | while ((chCur = *pszName++) != '\0')
|
---|
1612 | {
|
---|
1613 | static const char s_szInvalidChars[] = ";:()[]{}/\\|&*%#@!~`\"'";
|
---|
1614 | unsigned offInv = RT_ELEMENTS(s_szInvalidChars);
|
---|
1615 | while (offInv-- > 0)
|
---|
1616 | if (s_szInvalidChars[offInv] == chCur)
|
---|
1617 | return false;
|
---|
1618 | }
|
---|
1619 | return true;
|
---|
1620 | }
|
---|
1621 |
|
---|
1622 |
|
---|
1623 |
|
---|
1624 | /**
|
---|
1625 | * I/O Control inner worker (tracing reasons).
|
---|
1626 | *
|
---|
1627 | * @returns IPRT status code.
|
---|
1628 | * @retval VERR_INVALID_PARAMETER if the request is invalid.
|
---|
1629 | *
|
---|
1630 | * @param uIOCtl Function number.
|
---|
1631 | * @param pDevExt Device extention.
|
---|
1632 | * @param pSession Session data.
|
---|
1633 | * @param pReqHdr The request header.
|
---|
1634 | */
|
---|
1635 | static int supdrvIOCtlInnerUnrestricted(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr)
|
---|
1636 | {
|
---|
1637 | /*
|
---|
1638 | * Validation macros
|
---|
1639 | */
|
---|
1640 | #define REQ_CHECK_SIZES_EX(Name, cbInExpect, cbOutExpect) \
|
---|
1641 | do { \
|
---|
1642 | if (RT_UNLIKELY(pReqHdr->cbIn != (cbInExpect) || pReqHdr->cbOut != (cbOutExpect))) \
|
---|
1643 | { \
|
---|
1644 | OSDBGPRINT(( #Name ": Invalid input/output sizes. cbIn=%ld expected %ld. cbOut=%ld expected %ld.\n", \
|
---|
1645 | (long)pReqHdr->cbIn, (long)(cbInExpect), (long)pReqHdr->cbOut, (long)(cbOutExpect))); \
|
---|
1646 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1647 | } \
|
---|
1648 | } while (0)
|
---|
1649 |
|
---|
1650 | #define REQ_CHECK_SIZES(Name) REQ_CHECK_SIZES_EX(Name, Name ## _SIZE_IN, Name ## _SIZE_OUT)
|
---|
1651 |
|
---|
1652 | #define REQ_CHECK_SIZE_IN(Name, cbInExpect) \
|
---|
1653 | do { \
|
---|
1654 | if (RT_UNLIKELY(pReqHdr->cbIn != (cbInExpect))) \
|
---|
1655 | { \
|
---|
1656 | OSDBGPRINT(( #Name ": Invalid input/output sizes. cbIn=%ld expected %ld.\n", \
|
---|
1657 | (long)pReqHdr->cbIn, (long)(cbInExpect))); \
|
---|
1658 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1659 | } \
|
---|
1660 | } while (0)
|
---|
1661 |
|
---|
1662 | #define REQ_CHECK_SIZE_OUT(Name, cbOutExpect) \
|
---|
1663 | do { \
|
---|
1664 | if (RT_UNLIKELY(pReqHdr->cbOut != (cbOutExpect))) \
|
---|
1665 | { \
|
---|
1666 | OSDBGPRINT(( #Name ": Invalid input/output sizes. cbOut=%ld expected %ld.\n", \
|
---|
1667 | (long)pReqHdr->cbOut, (long)(cbOutExpect))); \
|
---|
1668 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1669 | } \
|
---|
1670 | } while (0)
|
---|
1671 |
|
---|
1672 | #define REQ_CHECK_EXPR(Name, expr) \
|
---|
1673 | do { \
|
---|
1674 | if (RT_UNLIKELY(!(expr))) \
|
---|
1675 | { \
|
---|
1676 | OSDBGPRINT(( #Name ": %s\n", #expr)); \
|
---|
1677 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1678 | } \
|
---|
1679 | } while (0)
|
---|
1680 |
|
---|
1681 | #define REQ_CHECK_EXPR_FMT(expr, fmt) \
|
---|
1682 | do { \
|
---|
1683 | if (RT_UNLIKELY(!(expr))) \
|
---|
1684 | { \
|
---|
1685 | OSDBGPRINT( fmt ); \
|
---|
1686 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1687 | } \
|
---|
1688 | } while (0)
|
---|
1689 |
|
---|
1690 | /*
|
---|
1691 | * The switch.
|
---|
1692 | */
|
---|
1693 | switch (SUP_CTL_CODE_NO_SIZE(uIOCtl))
|
---|
1694 | {
|
---|
1695 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_COOKIE):
|
---|
1696 | {
|
---|
1697 | PSUPCOOKIE pReq = (PSUPCOOKIE)pReqHdr;
|
---|
1698 | REQ_CHECK_SIZES(SUP_IOCTL_COOKIE);
|
---|
1699 | if (strncmp(pReq->u.In.szMagic, SUPCOOKIE_MAGIC, sizeof(pReq->u.In.szMagic)))
|
---|
1700 | {
|
---|
1701 | OSDBGPRINT(("SUP_IOCTL_COOKIE: invalid magic %.16s\n", pReq->u.In.szMagic));
|
---|
1702 | pReq->Hdr.rc = VERR_INVALID_MAGIC;
|
---|
1703 | return 0;
|
---|
1704 | }
|
---|
1705 |
|
---|
1706 | #if 0
|
---|
1707 | /*
|
---|
1708 | * Call out to the OS specific code and let it do permission checks on the
|
---|
1709 | * client process.
|
---|
1710 | */
|
---|
1711 | if (!supdrvOSValidateClientProcess(pDevExt, pSession))
|
---|
1712 | {
|
---|
1713 | pReq->u.Out.u32Cookie = 0xffffffff;
|
---|
1714 | pReq->u.Out.u32SessionCookie = 0xffffffff;
|
---|
1715 | pReq->u.Out.u32SessionVersion = 0xffffffff;
|
---|
1716 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
1717 | pReq->u.Out.pSession = NULL;
|
---|
1718 | pReq->u.Out.cFunctions = 0;
|
---|
1719 | pReq->Hdr.rc = VERR_PERMISSION_DENIED;
|
---|
1720 | return 0;
|
---|
1721 | }
|
---|
1722 | #endif
|
---|
1723 |
|
---|
1724 | /*
|
---|
1725 | * Match the version.
|
---|
1726 | * The current logic is very simple, match the major interface version.
|
---|
1727 | */
|
---|
1728 | if ( pReq->u.In.u32MinVersion > SUPDRV_IOC_VERSION
|
---|
1729 | || (pReq->u.In.u32MinVersion & 0xffff0000) != (SUPDRV_IOC_VERSION & 0xffff0000))
|
---|
1730 | {
|
---|
1731 | OSDBGPRINT(("SUP_IOCTL_COOKIE: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
|
---|
1732 | pReq->u.In.u32ReqVersion, pReq->u.In.u32MinVersion, SUPDRV_IOC_VERSION));
|
---|
1733 | pReq->u.Out.u32Cookie = 0xffffffff;
|
---|
1734 | pReq->u.Out.u32SessionCookie = 0xffffffff;
|
---|
1735 | pReq->u.Out.u32SessionVersion = 0xffffffff;
|
---|
1736 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
1737 | pReq->u.Out.pSession = NULL;
|
---|
1738 | pReq->u.Out.cFunctions = 0;
|
---|
1739 | pReq->Hdr.rc = VERR_VERSION_MISMATCH;
|
---|
1740 | return 0;
|
---|
1741 | }
|
---|
1742 |
|
---|
1743 | /*
|
---|
1744 | * Fill in return data and be gone.
|
---|
1745 | * N.B. The first one to change SUPDRV_IOC_VERSION shall makes sure that
|
---|
1746 | * u32SessionVersion <= u32ReqVersion!
|
---|
1747 | */
|
---|
1748 | /** @todo Somehow validate the client and negotiate a secure cookie... */
|
---|
1749 | pReq->u.Out.u32Cookie = pDevExt->u32Cookie;
|
---|
1750 | pReq->u.Out.u32SessionCookie = pSession->u32Cookie;
|
---|
1751 | pReq->u.Out.u32SessionVersion = SUPDRV_IOC_VERSION;
|
---|
1752 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
1753 | pReq->u.Out.pSession = pSession;
|
---|
1754 | pReq->u.Out.cFunctions = sizeof(g_aFunctions) / sizeof(g_aFunctions[0]);
|
---|
1755 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
1756 | return 0;
|
---|
1757 | }
|
---|
1758 |
|
---|
1759 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_QUERY_FUNCS(0)):
|
---|
1760 | {
|
---|
1761 | /* validate */
|
---|
1762 | PSUPQUERYFUNCS pReq = (PSUPQUERYFUNCS)pReqHdr;
|
---|
1763 | REQ_CHECK_SIZES_EX(SUP_IOCTL_QUERY_FUNCS, SUP_IOCTL_QUERY_FUNCS_SIZE_IN, SUP_IOCTL_QUERY_FUNCS_SIZE_OUT(RT_ELEMENTS(g_aFunctions)));
|
---|
1764 |
|
---|
1765 | /* execute */
|
---|
1766 | pReq->u.Out.cFunctions = RT_ELEMENTS(g_aFunctions);
|
---|
1767 | RT_BCOPY_UNFORTIFIED(&pReq->u.Out.aFunctions[0], g_aFunctions, sizeof(g_aFunctions));
|
---|
1768 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
1769 | return 0;
|
---|
1770 | }
|
---|
1771 |
|
---|
1772 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_LOCK):
|
---|
1773 | {
|
---|
1774 | /* validate */
|
---|
1775 | PSUPPAGELOCK pReq = (PSUPPAGELOCK)pReqHdr;
|
---|
1776 | REQ_CHECK_SIZE_IN(SUP_IOCTL_PAGE_LOCK, SUP_IOCTL_PAGE_LOCK_SIZE_IN);
|
---|
1777 | REQ_CHECK_SIZE_OUT(SUP_IOCTL_PAGE_LOCK, SUP_IOCTL_PAGE_LOCK_SIZE_OUT(pReq->u.In.cPages));
|
---|
1778 | REQ_CHECK_EXPR(SUP_IOCTL_PAGE_LOCK, pReq->u.In.cPages > 0);
|
---|
1779 | REQ_CHECK_EXPR(SUP_IOCTL_PAGE_LOCK, pReq->u.In.pvR3 >= PAGE_SIZE);
|
---|
1780 |
|
---|
1781 | /* execute */
|
---|
1782 | pReq->Hdr.rc = SUPR0LockMem(pSession, pReq->u.In.pvR3, pReq->u.In.cPages, &pReq->u.Out.aPages[0]);
|
---|
1783 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
1784 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
1785 | return 0;
|
---|
1786 | }
|
---|
1787 |
|
---|
1788 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_UNLOCK):
|
---|
1789 | {
|
---|
1790 | /* validate */
|
---|
1791 | PSUPPAGEUNLOCK pReq = (PSUPPAGEUNLOCK)pReqHdr;
|
---|
1792 | REQ_CHECK_SIZES(SUP_IOCTL_PAGE_UNLOCK);
|
---|
1793 |
|
---|
1794 | /* execute */
|
---|
1795 | pReq->Hdr.rc = SUPR0UnlockMem(pSession, pReq->u.In.pvR3);
|
---|
1796 | return 0;
|
---|
1797 | }
|
---|
1798 |
|
---|
1799 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CONT_ALLOC):
|
---|
1800 | {
|
---|
1801 | /* validate */
|
---|
1802 | PSUPCONTALLOC pReq = (PSUPCONTALLOC)pReqHdr;
|
---|
1803 | REQ_CHECK_SIZES(SUP_IOCTL_CONT_ALLOC);
|
---|
1804 |
|
---|
1805 | /* execute */
|
---|
1806 | pReq->Hdr.rc = SUPR0ContAlloc(pSession, pReq->u.In.cPages, &pReq->u.Out.pvR0, &pReq->u.Out.pvR3, &pReq->u.Out.HCPhys);
|
---|
1807 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
1808 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
1809 | return 0;
|
---|
1810 | }
|
---|
1811 |
|
---|
1812 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CONT_FREE):
|
---|
1813 | {
|
---|
1814 | /* validate */
|
---|
1815 | PSUPCONTFREE pReq = (PSUPCONTFREE)pReqHdr;
|
---|
1816 | REQ_CHECK_SIZES(SUP_IOCTL_CONT_FREE);
|
---|
1817 |
|
---|
1818 | /* execute */
|
---|
1819 | pReq->Hdr.rc = SUPR0ContFree(pSession, (RTHCUINTPTR)pReq->u.In.pvR3);
|
---|
1820 | return 0;
|
---|
1821 | }
|
---|
1822 |
|
---|
1823 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_OPEN):
|
---|
1824 | {
|
---|
1825 | /* validate */
|
---|
1826 | PSUPLDROPEN pReq = (PSUPLDROPEN)pReqHdr;
|
---|
1827 | REQ_CHECK_SIZES(SUP_IOCTL_LDR_OPEN);
|
---|
1828 | if ( pReq->u.In.cbImageWithEverything != 0
|
---|
1829 | || pReq->u.In.cbImageBits != 0)
|
---|
1830 | {
|
---|
1831 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageWithEverything > 0);
|
---|
1832 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageWithEverything < 16*_1M);
|
---|
1833 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageBits > 0);
|
---|
1834 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageBits < pReq->u.In.cbImageWithEverything);
|
---|
1835 | }
|
---|
1836 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.szName[0]);
|
---|
1837 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, RTStrEnd(pReq->u.In.szName, sizeof(pReq->u.In.szName)));
|
---|
1838 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, supdrvIsLdrModuleNameValid(pReq->u.In.szName));
|
---|
1839 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, RTStrEnd(pReq->u.In.szFilename, sizeof(pReq->u.In.szFilename)));
|
---|
1840 |
|
---|
1841 | /* execute */
|
---|
1842 | pReq->Hdr.rc = supdrvIOCtl_LdrOpen(pDevExt, pSession, pReq);
|
---|
1843 | return 0;
|
---|
1844 | }
|
---|
1845 |
|
---|
1846 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_LOAD):
|
---|
1847 | {
|
---|
1848 | /* validate */
|
---|
1849 | PSUPLDRLOAD pReq = (PSUPLDRLOAD)pReqHdr;
|
---|
1850 | uint8_t const * const pbSrcImage = pReq->u.In.abImage;
|
---|
1851 | REQ_CHECK_EXPR(Name, pReq->Hdr.cbIn >= SUP_IOCTL_LDR_LOAD_SIZE_IN(32));
|
---|
1852 | REQ_CHECK_SIZES_EX(SUP_IOCTL_LDR_LOAD, SUP_IOCTL_LDR_LOAD_SIZE_IN(pReq->u.In.cbImageWithEverything), SUP_IOCTL_LDR_LOAD_SIZE_OUT);
|
---|
1853 | REQ_CHECK_EXPR_FMT( !pReq->u.In.cSymbols
|
---|
1854 | || ( pReq->u.In.cSymbols <= 16384
|
---|
1855 | && pReq->u.In.offSymbols >= pReq->u.In.cbImageBits
|
---|
1856 | && pReq->u.In.offSymbols < pReq->u.In.cbImageWithEverything
|
---|
1857 | && pReq->u.In.offSymbols + pReq->u.In.cSymbols * sizeof(SUPLDRSYM) <= pReq->u.In.cbImageWithEverything),
|
---|
1858 | ("SUP_IOCTL_LDR_LOAD: offSymbols=%#lx cSymbols=%#lx cbImageWithEverything=%#lx\n", (long)pReq->u.In.offSymbols,
|
---|
1859 | (long)pReq->u.In.cSymbols, (long)pReq->u.In.cbImageWithEverything));
|
---|
1860 | REQ_CHECK_EXPR_FMT( !pReq->u.In.cbStrTab
|
---|
1861 | || ( pReq->u.In.offStrTab < pReq->u.In.cbImageWithEverything
|
---|
1862 | && pReq->u.In.offStrTab >= pReq->u.In.cbImageBits
|
---|
1863 | && pReq->u.In.offStrTab + pReq->u.In.cbStrTab <= pReq->u.In.cbImageWithEverything
|
---|
1864 | && pReq->u.In.cbStrTab <= pReq->u.In.cbImageWithEverything),
|
---|
1865 | ("SUP_IOCTL_LDR_LOAD: offStrTab=%#lx cbStrTab=%#lx cbImageWithEverything=%#lx\n", (long)pReq->u.In.offStrTab,
|
---|
1866 | (long)pReq->u.In.cbStrTab, (long)pReq->u.In.cbImageWithEverything));
|
---|
1867 | REQ_CHECK_EXPR_FMT( pReq->u.In.cSegments >= 1
|
---|
1868 | && pReq->u.In.cSegments <= 128
|
---|
1869 | && pReq->u.In.cSegments <= (pReq->u.In.cbImageBits + PAGE_SIZE - 1) / PAGE_SIZE
|
---|
1870 | && pReq->u.In.offSegments >= pReq->u.In.cbImageBits
|
---|
1871 | && pReq->u.In.offSegments < pReq->u.In.cbImageWithEverything
|
---|
1872 | && pReq->u.In.offSegments + pReq->u.In.cSegments * sizeof(SUPLDRSEG) <= pReq->u.In.cbImageWithEverything,
|
---|
1873 | ("SUP_IOCTL_LDR_LOAD: offSegments=%#lx cSegments=%#lx cbImageWithEverything=%#lx\n", (long)pReq->u.In.offSegments,
|
---|
1874 | (long)pReq->u.In.cSegments, (long)pReq->u.In.cbImageWithEverything));
|
---|
1875 |
|
---|
1876 | if (pReq->u.In.cSymbols)
|
---|
1877 | {
|
---|
1878 | uint32_t i;
|
---|
1879 | PSUPLDRSYM paSyms = (PSUPLDRSYM)(&pbSrcImage[pReq->u.In.offSymbols]);
|
---|
1880 | for (i = 0; i < pReq->u.In.cSymbols; i++)
|
---|
1881 | {
|
---|
1882 | REQ_CHECK_EXPR_FMT(paSyms[i].offSymbol < pReq->u.In.cbImageWithEverything,
|
---|
1883 | ("SUP_IOCTL_LDR_LOAD: sym #%ld: symb off %#lx (max=%#lx)\n", (long)i, (long)paSyms[i].offSymbol, (long)pReq->u.In.cbImageWithEverything));
|
---|
1884 | REQ_CHECK_EXPR_FMT(paSyms[i].offName < pReq->u.In.cbStrTab,
|
---|
1885 | ("SUP_IOCTL_LDR_LOAD: sym #%ld: name off %#lx (max=%#lx)\n", (long)i, (long)paSyms[i].offName, (long)pReq->u.In.cbImageWithEverything));
|
---|
1886 | REQ_CHECK_EXPR_FMT(RTStrEnd((char const *)(&pbSrcImage[pReq->u.In.offStrTab + paSyms[i].offName]),
|
---|
1887 | pReq->u.In.cbStrTab - paSyms[i].offName),
|
---|
1888 | ("SUP_IOCTL_LDR_LOAD: sym #%ld: unterminated name! (%#lx / %#lx)\n", (long)i, (long)paSyms[i].offName, (long)pReq->u.In.cbImageWithEverything));
|
---|
1889 | }
|
---|
1890 | }
|
---|
1891 | {
|
---|
1892 | uint32_t i;
|
---|
1893 | uint32_t offPrevEnd = 0;
|
---|
1894 | PSUPLDRSEG paSegs = (PSUPLDRSEG)(&pbSrcImage[pReq->u.In.offSegments]);
|
---|
1895 | for (i = 0; i < pReq->u.In.cSegments; i++)
|
---|
1896 | {
|
---|
1897 | REQ_CHECK_EXPR_FMT(paSegs[i].off < pReq->u.In.cbImageBits && !(paSegs[i].off & PAGE_OFFSET_MASK),
|
---|
1898 | ("SUP_IOCTL_LDR_LOAD: seg #%ld: off %#lx (max=%#lx)\n", (long)i, (long)paSegs[i].off, (long)pReq->u.In.cbImageBits));
|
---|
1899 | REQ_CHECK_EXPR_FMT(paSegs[i].cb <= pReq->u.In.cbImageBits,
|
---|
1900 | ("SUP_IOCTL_LDR_LOAD: seg #%ld: cb %#lx (max=%#lx)\n", (long)i, (long)paSegs[i].cb, (long)pReq->u.In.cbImageBits));
|
---|
1901 | REQ_CHECK_EXPR_FMT(paSegs[i].off + paSegs[i].cb <= pReq->u.In.cbImageBits,
|
---|
1902 | ("SUP_IOCTL_LDR_LOAD: seg #%ld: off %#lx + cb %#lx = %#lx (max=%#lx)\n", (long)i, (long)paSegs[i].off, (long)paSegs[i].cb, (long)(paSegs[i].off + paSegs[i].cb), (long)pReq->u.In.cbImageBits));
|
---|
1903 | REQ_CHECK_EXPR_FMT(paSegs[i].fProt != 0,
|
---|
1904 | ("SUP_IOCTL_LDR_LOAD: seg #%ld: off %#lx + cb %#lx\n", (long)i, (long)paSegs[i].off, (long)paSegs[i].cb));
|
---|
1905 | REQ_CHECK_EXPR_FMT(paSegs[i].fUnused == 0, ("SUP_IOCTL_LDR_LOAD: seg #%ld: fUnused=1\n", (long)i));
|
---|
1906 | REQ_CHECK_EXPR_FMT(offPrevEnd == paSegs[i].off,
|
---|
1907 | ("SUP_IOCTL_LDR_LOAD: seg #%ld: off %#lx offPrevEnd %#lx\n", (long)i, (long)paSegs[i].off, (long)offPrevEnd));
|
---|
1908 | offPrevEnd = paSegs[i].off + paSegs[i].cb;
|
---|
1909 | }
|
---|
1910 | REQ_CHECK_EXPR_FMT(offPrevEnd == pReq->u.In.cbImageBits,
|
---|
1911 | ("SUP_IOCTL_LDR_LOAD: offPrevEnd %#lx cbImageBits %#lx\n", (long)i, (long)offPrevEnd, (long)pReq->u.In.cbImageBits));
|
---|
1912 | }
|
---|
1913 | REQ_CHECK_EXPR_FMT(!(pReq->u.In.fFlags & ~SUPLDRLOAD_F_VALID_MASK),
|
---|
1914 | ("SUP_IOCTL_LDR_LOAD: fFlags=%#x\n", (unsigned)pReq->u.In.fFlags));
|
---|
1915 |
|
---|
1916 | /* execute */
|
---|
1917 | pReq->Hdr.rc = supdrvIOCtl_LdrLoad(pDevExt, pSession, pReq);
|
---|
1918 | return 0;
|
---|
1919 | }
|
---|
1920 |
|
---|
1921 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_FREE):
|
---|
1922 | {
|
---|
1923 | /* validate */
|
---|
1924 | PSUPLDRFREE pReq = (PSUPLDRFREE)pReqHdr;
|
---|
1925 | REQ_CHECK_SIZES(SUP_IOCTL_LDR_FREE);
|
---|
1926 |
|
---|
1927 | /* execute */
|
---|
1928 | pReq->Hdr.rc = supdrvIOCtl_LdrFree(pDevExt, pSession, pReq);
|
---|
1929 | return 0;
|
---|
1930 | }
|
---|
1931 |
|
---|
1932 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_LOCK_DOWN):
|
---|
1933 | {
|
---|
1934 | /* validate */
|
---|
1935 | REQ_CHECK_SIZES(SUP_IOCTL_LDR_LOCK_DOWN);
|
---|
1936 |
|
---|
1937 | /* execute */
|
---|
1938 | pReqHdr->rc = supdrvIOCtl_LdrLockDown(pDevExt);
|
---|
1939 | return 0;
|
---|
1940 | }
|
---|
1941 |
|
---|
1942 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_GET_SYMBOL):
|
---|
1943 | {
|
---|
1944 | /* validate */
|
---|
1945 | PSUPLDRGETSYMBOL pReq = (PSUPLDRGETSYMBOL)pReqHdr;
|
---|
1946 | REQ_CHECK_SIZES(SUP_IOCTL_LDR_GET_SYMBOL);
|
---|
1947 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_GET_SYMBOL, RTStrEnd(pReq->u.In.szSymbol, sizeof(pReq->u.In.szSymbol)));
|
---|
1948 |
|
---|
1949 | /* execute */
|
---|
1950 | pReq->Hdr.rc = supdrvIOCtl_LdrQuerySymbol(pDevExt, pSession, pReq);
|
---|
1951 | return 0;
|
---|
1952 | }
|
---|
1953 |
|
---|
1954 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CALL_VMMR0_NO_SIZE()):
|
---|
1955 | {
|
---|
1956 | /* validate */
|
---|
1957 | PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)pReqHdr;
|
---|
1958 | Log4(("SUP_IOCTL_CALL_VMMR0: op=%u in=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
1959 | pReq->u.In.uOperation, pReq->Hdr.cbIn, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
1960 |
|
---|
1961 | if (pReq->Hdr.cbIn == SUP_IOCTL_CALL_VMMR0_SIZE(0))
|
---|
1962 | {
|
---|
1963 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_VMMR0, SUP_IOCTL_CALL_VMMR0_SIZE_IN(0), SUP_IOCTL_CALL_VMMR0_SIZE_OUT(0));
|
---|
1964 |
|
---|
1965 | /* execute */
|
---|
1966 | if (RT_LIKELY(pDevExt->pfnVMMR0EntryEx))
|
---|
1967 | {
|
---|
1968 | if (pReq->u.In.pVMR0 == NULL)
|
---|
1969 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(NULL, NULL, pReq->u.In.idCpu,
|
---|
1970 | pReq->u.In.uOperation, NULL, pReq->u.In.u64Arg, pSession);
|
---|
1971 | else if (pReq->u.In.pVMR0 == pSession->pSessionVM)
|
---|
1972 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(pSession->pSessionGVM, pSession->pSessionVM, pReq->u.In.idCpu,
|
---|
1973 | pReq->u.In.uOperation, NULL, pReq->u.In.u64Arg, pSession);
|
---|
1974 | else
|
---|
1975 | pReq->Hdr.rc = VERR_INVALID_VM_HANDLE;
|
---|
1976 | }
|
---|
1977 | else
|
---|
1978 | pReq->Hdr.rc = VERR_WRONG_ORDER;
|
---|
1979 | }
|
---|
1980 | else
|
---|
1981 | {
|
---|
1982 | PSUPVMMR0REQHDR pVMMReq = (PSUPVMMR0REQHDR)&pReq->abReqPkt[0];
|
---|
1983 | REQ_CHECK_EXPR_FMT(pReq->Hdr.cbIn >= SUP_IOCTL_CALL_VMMR0_SIZE(sizeof(SUPVMMR0REQHDR)),
|
---|
1984 | ("SUP_IOCTL_CALL_VMMR0: cbIn=%#x < %#lx\n", pReq->Hdr.cbIn, SUP_IOCTL_CALL_VMMR0_SIZE(sizeof(SUPVMMR0REQHDR))));
|
---|
1985 | REQ_CHECK_EXPR(SUP_IOCTL_CALL_VMMR0, pVMMReq->u32Magic == SUPVMMR0REQHDR_MAGIC);
|
---|
1986 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_VMMR0, SUP_IOCTL_CALL_VMMR0_SIZE_IN(pVMMReq->cbReq), SUP_IOCTL_CALL_VMMR0_SIZE_OUT(pVMMReq->cbReq));
|
---|
1987 |
|
---|
1988 | /* execute */
|
---|
1989 | if (RT_LIKELY(pDevExt->pfnVMMR0EntryEx))
|
---|
1990 | {
|
---|
1991 | if (pReq->u.In.pVMR0 == NULL)
|
---|
1992 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(NULL, NULL, pReq->u.In.idCpu,
|
---|
1993 | pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
|
---|
1994 | else if (pReq->u.In.pVMR0 == pSession->pSessionVM)
|
---|
1995 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(pSession->pSessionGVM, pSession->pSessionVM, pReq->u.In.idCpu,
|
---|
1996 | pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
|
---|
1997 | else
|
---|
1998 | pReq->Hdr.rc = VERR_INVALID_VM_HANDLE;
|
---|
1999 | }
|
---|
2000 | else
|
---|
2001 | pReq->Hdr.rc = VERR_WRONG_ORDER;
|
---|
2002 | }
|
---|
2003 |
|
---|
2004 | if ( RT_FAILURE(pReq->Hdr.rc)
|
---|
2005 | && pReq->Hdr.rc != VERR_INTERRUPTED
|
---|
2006 | && pReq->Hdr.rc != VERR_TIMEOUT)
|
---|
2007 | Log(("SUP_IOCTL_CALL_VMMR0: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
2008 | pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
2009 | else
|
---|
2010 | Log4(("SUP_IOCTL_CALL_VMMR0: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
2011 | pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
2012 | return 0;
|
---|
2013 | }
|
---|
2014 |
|
---|
2015 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CALL_VMMR0_BIG):
|
---|
2016 | {
|
---|
2017 | /* validate */
|
---|
2018 | PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)pReqHdr;
|
---|
2019 | PSUPVMMR0REQHDR pVMMReq;
|
---|
2020 | Log4(("SUP_IOCTL_CALL_VMMR0_BIG: op=%u in=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
2021 | pReq->u.In.uOperation, pReq->Hdr.cbIn, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
2022 |
|
---|
2023 | pVMMReq = (PSUPVMMR0REQHDR)&pReq->abReqPkt[0];
|
---|
2024 | REQ_CHECK_EXPR_FMT(pReq->Hdr.cbIn >= SUP_IOCTL_CALL_VMMR0_BIG_SIZE(sizeof(SUPVMMR0REQHDR)),
|
---|
2025 | ("SUP_IOCTL_CALL_VMMR0_BIG: cbIn=%#x < %#lx\n", pReq->Hdr.cbIn, SUP_IOCTL_CALL_VMMR0_BIG_SIZE(sizeof(SUPVMMR0REQHDR))));
|
---|
2026 | REQ_CHECK_EXPR(SUP_IOCTL_CALL_VMMR0_BIG, pVMMReq->u32Magic == SUPVMMR0REQHDR_MAGIC);
|
---|
2027 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_VMMR0_BIG, SUP_IOCTL_CALL_VMMR0_BIG_SIZE_IN(pVMMReq->cbReq), SUP_IOCTL_CALL_VMMR0_BIG_SIZE_OUT(pVMMReq->cbReq));
|
---|
2028 |
|
---|
2029 | /* execute */
|
---|
2030 | if (RT_LIKELY(pDevExt->pfnVMMR0EntryEx))
|
---|
2031 | {
|
---|
2032 | if (pReq->u.In.pVMR0 == NULL)
|
---|
2033 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(NULL, NULL, pReq->u.In.idCpu, pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
|
---|
2034 | else if (pReq->u.In.pVMR0 == pSession->pSessionVM)
|
---|
2035 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(pSession->pSessionGVM, pSession->pSessionVM, pReq->u.In.idCpu,
|
---|
2036 | pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
|
---|
2037 | else
|
---|
2038 | pReq->Hdr.rc = VERR_INVALID_VM_HANDLE;
|
---|
2039 | }
|
---|
2040 | else
|
---|
2041 | pReq->Hdr.rc = VERR_WRONG_ORDER;
|
---|
2042 |
|
---|
2043 | if ( RT_FAILURE(pReq->Hdr.rc)
|
---|
2044 | && pReq->Hdr.rc != VERR_INTERRUPTED
|
---|
2045 | && pReq->Hdr.rc != VERR_TIMEOUT)
|
---|
2046 | Log(("SUP_IOCTL_CALL_VMMR0_BIG: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
2047 | pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
2048 | else
|
---|
2049 | Log4(("SUP_IOCTL_CALL_VMMR0_BIG: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
2050 | pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
2051 | return 0;
|
---|
2052 | }
|
---|
2053 |
|
---|
2054 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GET_PAGING_MODE):
|
---|
2055 | {
|
---|
2056 | /* validate */
|
---|
2057 | PSUPGETPAGINGMODE pReq = (PSUPGETPAGINGMODE)pReqHdr;
|
---|
2058 | REQ_CHECK_SIZES(SUP_IOCTL_GET_PAGING_MODE);
|
---|
2059 |
|
---|
2060 | /* execute */
|
---|
2061 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
2062 | pReq->u.Out.enmMode = SUPR0GetPagingMode();
|
---|
2063 | return 0;
|
---|
2064 | }
|
---|
2065 |
|
---|
2066 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LOW_ALLOC):
|
---|
2067 | {
|
---|
2068 | /* validate */
|
---|
2069 | PSUPLOWALLOC pReq = (PSUPLOWALLOC)pReqHdr;
|
---|
2070 | REQ_CHECK_EXPR(SUP_IOCTL_LOW_ALLOC, pReq->Hdr.cbIn <= SUP_IOCTL_LOW_ALLOC_SIZE_IN);
|
---|
2071 | REQ_CHECK_SIZES_EX(SUP_IOCTL_LOW_ALLOC, SUP_IOCTL_LOW_ALLOC_SIZE_IN, SUP_IOCTL_LOW_ALLOC_SIZE_OUT(pReq->u.In.cPages));
|
---|
2072 |
|
---|
2073 | /* execute */
|
---|
2074 | pReq->Hdr.rc = SUPR0LowAlloc(pSession, pReq->u.In.cPages, &pReq->u.Out.pvR0, &pReq->u.Out.pvR3, &pReq->u.Out.aPages[0]);
|
---|
2075 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2076 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2077 | return 0;
|
---|
2078 | }
|
---|
2079 |
|
---|
2080 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LOW_FREE):
|
---|
2081 | {
|
---|
2082 | /* validate */
|
---|
2083 | PSUPLOWFREE pReq = (PSUPLOWFREE)pReqHdr;
|
---|
2084 | REQ_CHECK_SIZES(SUP_IOCTL_LOW_FREE);
|
---|
2085 |
|
---|
2086 | /* execute */
|
---|
2087 | pReq->Hdr.rc = SUPR0LowFree(pSession, (RTHCUINTPTR)pReq->u.In.pvR3);
|
---|
2088 | return 0;
|
---|
2089 | }
|
---|
2090 |
|
---|
2091 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GIP_MAP):
|
---|
2092 | {
|
---|
2093 | /* validate */
|
---|
2094 | PSUPGIPMAP pReq = (PSUPGIPMAP)pReqHdr;
|
---|
2095 | REQ_CHECK_SIZES(SUP_IOCTL_GIP_MAP);
|
---|
2096 |
|
---|
2097 | /* execute */
|
---|
2098 | pReq->Hdr.rc = SUPR0GipMap(pSession, &pReq->u.Out.pGipR3, &pReq->u.Out.HCPhysGip);
|
---|
2099 | if (RT_SUCCESS(pReq->Hdr.rc))
|
---|
2100 | pReq->u.Out.pGipR0 = pDevExt->pGip;
|
---|
2101 | return 0;
|
---|
2102 | }
|
---|
2103 |
|
---|
2104 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GIP_UNMAP):
|
---|
2105 | {
|
---|
2106 | /* validate */
|
---|
2107 | PSUPGIPUNMAP pReq = (PSUPGIPUNMAP)pReqHdr;
|
---|
2108 | REQ_CHECK_SIZES(SUP_IOCTL_GIP_UNMAP);
|
---|
2109 |
|
---|
2110 | /* execute */
|
---|
2111 | pReq->Hdr.rc = SUPR0GipUnmap(pSession);
|
---|
2112 | return 0;
|
---|
2113 | }
|
---|
2114 |
|
---|
2115 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_SET_VM_FOR_FAST):
|
---|
2116 | {
|
---|
2117 | /* validate */
|
---|
2118 | PSUPSETVMFORFAST pReq = (PSUPSETVMFORFAST)pReqHdr;
|
---|
2119 | REQ_CHECK_SIZES(SUP_IOCTL_SET_VM_FOR_FAST);
|
---|
2120 | REQ_CHECK_EXPR_FMT( !pReq->u.In.pVMR0
|
---|
2121 | || ( RT_VALID_PTR(pReq->u.In.pVMR0)
|
---|
2122 | && !((uintptr_t)pReq->u.In.pVMR0 & (PAGE_SIZE - 1))),
|
---|
2123 | ("SUP_IOCTL_SET_VM_FOR_FAST: pVMR0=%p!\n", pReq->u.In.pVMR0));
|
---|
2124 |
|
---|
2125 | /* execute */
|
---|
2126 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
2127 | if (pSession->pSessionVM == pReq->u.In.pVMR0)
|
---|
2128 | {
|
---|
2129 | if (pSession->pFastIoCtrlVM == NULL)
|
---|
2130 | {
|
---|
2131 | pSession->pFastIoCtrlVM = pSession->pSessionVM;
|
---|
2132 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2133 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
2134 | }
|
---|
2135 | else
|
---|
2136 | {
|
---|
2137 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2138 | OSDBGPRINT(("SUP_IOCTL_SET_VM_FOR_FAST: pSession->pFastIoCtrlVM=%p! (pVMR0=%p)\n",
|
---|
2139 | pSession->pFastIoCtrlVM, pReq->u.In.pVMR0));
|
---|
2140 | pReq->Hdr.rc = VERR_ALREADY_EXISTS;
|
---|
2141 | }
|
---|
2142 | }
|
---|
2143 | else
|
---|
2144 | {
|
---|
2145 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2146 | OSDBGPRINT(("SUP_IOCTL_SET_VM_FOR_FAST: pSession->pSessionVM=%p vs pVMR0=%p)\n",
|
---|
2147 | pSession->pSessionVM, pReq->u.In.pVMR0));
|
---|
2148 | pReq->Hdr.rc = pSession->pSessionVM ? VERR_ACCESS_DENIED : VERR_WRONG_ORDER;
|
---|
2149 | }
|
---|
2150 | return 0;
|
---|
2151 | }
|
---|
2152 |
|
---|
2153 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_ALLOC_EX):
|
---|
2154 | {
|
---|
2155 | /* validate */
|
---|
2156 | PSUPPAGEALLOCEX pReq = (PSUPPAGEALLOCEX)pReqHdr;
|
---|
2157 | REQ_CHECK_EXPR(SUP_IOCTL_PAGE_ALLOC_EX, pReq->Hdr.cbIn <= SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN);
|
---|
2158 | REQ_CHECK_SIZES_EX(SUP_IOCTL_PAGE_ALLOC_EX, SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN, SUP_IOCTL_PAGE_ALLOC_EX_SIZE_OUT(pReq->u.In.cPages));
|
---|
2159 | REQ_CHECK_EXPR_FMT(pReq->u.In.fKernelMapping || pReq->u.In.fUserMapping,
|
---|
2160 | ("SUP_IOCTL_PAGE_ALLOC_EX: No mapping requested!\n"));
|
---|
2161 | REQ_CHECK_EXPR_FMT(pReq->u.In.fUserMapping,
|
---|
2162 | ("SUP_IOCTL_PAGE_ALLOC_EX: Must have user mapping!\n"));
|
---|
2163 | REQ_CHECK_EXPR_FMT(!pReq->u.In.fReserved0 && !pReq->u.In.fReserved1,
|
---|
2164 | ("SUP_IOCTL_PAGE_ALLOC_EX: fReserved0=%d fReserved1=%d\n", pReq->u.In.fReserved0, pReq->u.In.fReserved1));
|
---|
2165 |
|
---|
2166 | /* execute */
|
---|
2167 | pReq->Hdr.rc = SUPR0PageAllocEx(pSession, pReq->u.In.cPages, 0 /* fFlags */,
|
---|
2168 | pReq->u.In.fUserMapping ? &pReq->u.Out.pvR3 : NULL,
|
---|
2169 | pReq->u.In.fKernelMapping ? &pReq->u.Out.pvR0 : NULL,
|
---|
2170 | &pReq->u.Out.aPages[0]);
|
---|
2171 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2172 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2173 | return 0;
|
---|
2174 | }
|
---|
2175 |
|
---|
2176 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_MAP_KERNEL):
|
---|
2177 | {
|
---|
2178 | /* validate */
|
---|
2179 | PSUPPAGEMAPKERNEL pReq = (PSUPPAGEMAPKERNEL)pReqHdr;
|
---|
2180 | REQ_CHECK_SIZES(SUP_IOCTL_PAGE_MAP_KERNEL);
|
---|
2181 | REQ_CHECK_EXPR_FMT(!pReq->u.In.fFlags, ("SUP_IOCTL_PAGE_MAP_KERNEL: fFlags=%#x! MBZ\n", pReq->u.In.fFlags));
|
---|
2182 | REQ_CHECK_EXPR_FMT(!(pReq->u.In.offSub & PAGE_OFFSET_MASK), ("SUP_IOCTL_PAGE_MAP_KERNEL: offSub=%#x\n", pReq->u.In.offSub));
|
---|
2183 | REQ_CHECK_EXPR_FMT(pReq->u.In.cbSub && !(pReq->u.In.cbSub & PAGE_OFFSET_MASK),
|
---|
2184 | ("SUP_IOCTL_PAGE_MAP_KERNEL: cbSub=%#x\n", pReq->u.In.cbSub));
|
---|
2185 |
|
---|
2186 | /* execute */
|
---|
2187 | pReq->Hdr.rc = SUPR0PageMapKernel(pSession, pReq->u.In.pvR3, pReq->u.In.offSub, pReq->u.In.cbSub,
|
---|
2188 | pReq->u.In.fFlags, &pReq->u.Out.pvR0);
|
---|
2189 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2190 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2191 | return 0;
|
---|
2192 | }
|
---|
2193 |
|
---|
2194 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_PROTECT):
|
---|
2195 | {
|
---|
2196 | /* validate */
|
---|
2197 | PSUPPAGEPROTECT pReq = (PSUPPAGEPROTECT)pReqHdr;
|
---|
2198 | REQ_CHECK_SIZES(SUP_IOCTL_PAGE_PROTECT);
|
---|
2199 | REQ_CHECK_EXPR_FMT(!(pReq->u.In.fProt & ~(RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC | RTMEM_PROT_NONE)),
|
---|
2200 | ("SUP_IOCTL_PAGE_PROTECT: fProt=%#x!\n", pReq->u.In.fProt));
|
---|
2201 | REQ_CHECK_EXPR_FMT(!(pReq->u.In.offSub & PAGE_OFFSET_MASK), ("SUP_IOCTL_PAGE_PROTECT: offSub=%#x\n", pReq->u.In.offSub));
|
---|
2202 | REQ_CHECK_EXPR_FMT(pReq->u.In.cbSub && !(pReq->u.In.cbSub & PAGE_OFFSET_MASK),
|
---|
2203 | ("SUP_IOCTL_PAGE_PROTECT: cbSub=%#x\n", pReq->u.In.cbSub));
|
---|
2204 |
|
---|
2205 | /* execute */
|
---|
2206 | pReq->Hdr.rc = SUPR0PageProtect(pSession, pReq->u.In.pvR3, pReq->u.In.pvR0, pReq->u.In.offSub, pReq->u.In.cbSub, pReq->u.In.fProt);
|
---|
2207 | return 0;
|
---|
2208 | }
|
---|
2209 |
|
---|
2210 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_FREE):
|
---|
2211 | {
|
---|
2212 | /* validate */
|
---|
2213 | PSUPPAGEFREE pReq = (PSUPPAGEFREE)pReqHdr;
|
---|
2214 | REQ_CHECK_SIZES(SUP_IOCTL_PAGE_FREE);
|
---|
2215 |
|
---|
2216 | /* execute */
|
---|
2217 | pReq->Hdr.rc = SUPR0PageFree(pSession, pReq->u.In.pvR3);
|
---|
2218 | return 0;
|
---|
2219 | }
|
---|
2220 |
|
---|
2221 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CALL_SERVICE_NO_SIZE()):
|
---|
2222 | {
|
---|
2223 | /* validate */
|
---|
2224 | PSUPCALLSERVICE pReq = (PSUPCALLSERVICE)pReqHdr;
|
---|
2225 | Log4(("SUP_IOCTL_CALL_SERVICE: op=%u in=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
2226 | pReq->u.In.uOperation, pReq->Hdr.cbIn, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
2227 |
|
---|
2228 | if (pReq->Hdr.cbIn == SUP_IOCTL_CALL_SERVICE_SIZE(0))
|
---|
2229 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_SERVICE, SUP_IOCTL_CALL_SERVICE_SIZE_IN(0), SUP_IOCTL_CALL_SERVICE_SIZE_OUT(0));
|
---|
2230 | else
|
---|
2231 | {
|
---|
2232 | PSUPR0SERVICEREQHDR pSrvReq = (PSUPR0SERVICEREQHDR)&pReq->abReqPkt[0];
|
---|
2233 | REQ_CHECK_EXPR_FMT(pReq->Hdr.cbIn >= SUP_IOCTL_CALL_SERVICE_SIZE(sizeof(SUPR0SERVICEREQHDR)),
|
---|
2234 | ("SUP_IOCTL_CALL_SERVICE: cbIn=%#x < %#lx\n", pReq->Hdr.cbIn, SUP_IOCTL_CALL_SERVICE_SIZE(sizeof(SUPR0SERVICEREQHDR))));
|
---|
2235 | REQ_CHECK_EXPR(SUP_IOCTL_CALL_SERVICE, pSrvReq->u32Magic == SUPR0SERVICEREQHDR_MAGIC);
|
---|
2236 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_SERVICE, SUP_IOCTL_CALL_SERVICE_SIZE_IN(pSrvReq->cbReq), SUP_IOCTL_CALL_SERVICE_SIZE_OUT(pSrvReq->cbReq));
|
---|
2237 | }
|
---|
2238 | REQ_CHECK_EXPR(SUP_IOCTL_CALL_SERVICE, RTStrEnd(pReq->u.In.szName, sizeof(pReq->u.In.szName)));
|
---|
2239 |
|
---|
2240 | /* execute */
|
---|
2241 | pReq->Hdr.rc = supdrvIOCtl_CallServiceModule(pDevExt, pSession, pReq);
|
---|
2242 | return 0;
|
---|
2243 | }
|
---|
2244 |
|
---|
2245 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LOGGER_SETTINGS_NO_SIZE()):
|
---|
2246 | {
|
---|
2247 | /* validate */
|
---|
2248 | PSUPLOGGERSETTINGS pReq = (PSUPLOGGERSETTINGS)pReqHdr;
|
---|
2249 | size_t cbStrTab;
|
---|
2250 | REQ_CHECK_SIZE_OUT(SUP_IOCTL_LOGGER_SETTINGS, SUP_IOCTL_LOGGER_SETTINGS_SIZE_OUT);
|
---|
2251 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->Hdr.cbIn >= SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(1));
|
---|
2252 | cbStrTab = pReq->Hdr.cbIn - SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(0);
|
---|
2253 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.offGroups < cbStrTab);
|
---|
2254 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.offFlags < cbStrTab);
|
---|
2255 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.offDestination < cbStrTab);
|
---|
2256 | REQ_CHECK_EXPR_FMT(pReq->u.In.szStrings[cbStrTab - 1] == '\0',
|
---|
2257 | ("SUP_IOCTL_LOGGER_SETTINGS: cbIn=%#x cbStrTab=%#zx LastChar=%d\n",
|
---|
2258 | pReq->Hdr.cbIn, cbStrTab, pReq->u.In.szStrings[cbStrTab - 1]));
|
---|
2259 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.fWhich <= SUPLOGGERSETTINGS_WHICH_RELEASE);
|
---|
2260 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.fWhat <= SUPLOGGERSETTINGS_WHAT_DESTROY);
|
---|
2261 |
|
---|
2262 | /* execute */
|
---|
2263 | pReq->Hdr.rc = supdrvIOCtl_LoggerSettings(pReq);
|
---|
2264 | return 0;
|
---|
2265 | }
|
---|
2266 |
|
---|
2267 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_SEM_OP2):
|
---|
2268 | {
|
---|
2269 | /* validate */
|
---|
2270 | PSUPSEMOP2 pReq = (PSUPSEMOP2)pReqHdr;
|
---|
2271 | REQ_CHECK_SIZES_EX(SUP_IOCTL_SEM_OP2, SUP_IOCTL_SEM_OP2_SIZE_IN, SUP_IOCTL_SEM_OP2_SIZE_OUT);
|
---|
2272 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP2, pReq->u.In.uReserved == 0);
|
---|
2273 |
|
---|
2274 | /* execute */
|
---|
2275 | switch (pReq->u.In.uType)
|
---|
2276 | {
|
---|
2277 | case SUP_SEM_TYPE_EVENT:
|
---|
2278 | {
|
---|
2279 | SUPSEMEVENT hEvent = (SUPSEMEVENT)(uintptr_t)pReq->u.In.hSem;
|
---|
2280 | switch (pReq->u.In.uOp)
|
---|
2281 | {
|
---|
2282 | case SUPSEMOP2_WAIT_MS_REL:
|
---|
2283 | pReq->Hdr.rc = SUPSemEventWaitNoResume(pSession, hEvent, pReq->u.In.uArg.cRelMsTimeout);
|
---|
2284 | break;
|
---|
2285 | case SUPSEMOP2_WAIT_NS_ABS:
|
---|
2286 | pReq->Hdr.rc = SUPSemEventWaitNsAbsIntr(pSession, hEvent, pReq->u.In.uArg.uAbsNsTimeout);
|
---|
2287 | break;
|
---|
2288 | case SUPSEMOP2_WAIT_NS_REL:
|
---|
2289 | pReq->Hdr.rc = SUPSemEventWaitNsRelIntr(pSession, hEvent, pReq->u.In.uArg.cRelNsTimeout);
|
---|
2290 | break;
|
---|
2291 | case SUPSEMOP2_SIGNAL:
|
---|
2292 | pReq->Hdr.rc = SUPSemEventSignal(pSession, hEvent);
|
---|
2293 | break;
|
---|
2294 | case SUPSEMOP2_CLOSE:
|
---|
2295 | pReq->Hdr.rc = SUPSemEventClose(pSession, hEvent);
|
---|
2296 | break;
|
---|
2297 | case SUPSEMOP2_RESET:
|
---|
2298 | default:
|
---|
2299 | pReq->Hdr.rc = VERR_INVALID_FUNCTION;
|
---|
2300 | break;
|
---|
2301 | }
|
---|
2302 | break;
|
---|
2303 | }
|
---|
2304 |
|
---|
2305 | case SUP_SEM_TYPE_EVENT_MULTI:
|
---|
2306 | {
|
---|
2307 | SUPSEMEVENTMULTI hEventMulti = (SUPSEMEVENTMULTI)(uintptr_t)pReq->u.In.hSem;
|
---|
2308 | switch (pReq->u.In.uOp)
|
---|
2309 | {
|
---|
2310 | case SUPSEMOP2_WAIT_MS_REL:
|
---|
2311 | pReq->Hdr.rc = SUPSemEventMultiWaitNoResume(pSession, hEventMulti, pReq->u.In.uArg.cRelMsTimeout);
|
---|
2312 | break;
|
---|
2313 | case SUPSEMOP2_WAIT_NS_ABS:
|
---|
2314 | pReq->Hdr.rc = SUPSemEventMultiWaitNsAbsIntr(pSession, hEventMulti, pReq->u.In.uArg.uAbsNsTimeout);
|
---|
2315 | break;
|
---|
2316 | case SUPSEMOP2_WAIT_NS_REL:
|
---|
2317 | pReq->Hdr.rc = SUPSemEventMultiWaitNsRelIntr(pSession, hEventMulti, pReq->u.In.uArg.cRelNsTimeout);
|
---|
2318 | break;
|
---|
2319 | case SUPSEMOP2_SIGNAL:
|
---|
2320 | pReq->Hdr.rc = SUPSemEventMultiSignal(pSession, hEventMulti);
|
---|
2321 | break;
|
---|
2322 | case SUPSEMOP2_CLOSE:
|
---|
2323 | pReq->Hdr.rc = SUPSemEventMultiClose(pSession, hEventMulti);
|
---|
2324 | break;
|
---|
2325 | case SUPSEMOP2_RESET:
|
---|
2326 | pReq->Hdr.rc = SUPSemEventMultiReset(pSession, hEventMulti);
|
---|
2327 | break;
|
---|
2328 | default:
|
---|
2329 | pReq->Hdr.rc = VERR_INVALID_FUNCTION;
|
---|
2330 | break;
|
---|
2331 | }
|
---|
2332 | break;
|
---|
2333 | }
|
---|
2334 |
|
---|
2335 | default:
|
---|
2336 | pReq->Hdr.rc = VERR_INVALID_PARAMETER;
|
---|
2337 | break;
|
---|
2338 | }
|
---|
2339 | return 0;
|
---|
2340 | }
|
---|
2341 |
|
---|
2342 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_SEM_OP3):
|
---|
2343 | {
|
---|
2344 | /* validate */
|
---|
2345 | PSUPSEMOP3 pReq = (PSUPSEMOP3)pReqHdr;
|
---|
2346 | REQ_CHECK_SIZES_EX(SUP_IOCTL_SEM_OP3, SUP_IOCTL_SEM_OP3_SIZE_IN, SUP_IOCTL_SEM_OP3_SIZE_OUT);
|
---|
2347 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, pReq->u.In.u32Reserved == 0 && pReq->u.In.u64Reserved == 0);
|
---|
2348 |
|
---|
2349 | /* execute */
|
---|
2350 | switch (pReq->u.In.uType)
|
---|
2351 | {
|
---|
2352 | case SUP_SEM_TYPE_EVENT:
|
---|
2353 | {
|
---|
2354 | SUPSEMEVENT hEvent = (SUPSEMEVENT)(uintptr_t)pReq->u.In.hSem;
|
---|
2355 | switch (pReq->u.In.uOp)
|
---|
2356 | {
|
---|
2357 | case SUPSEMOP3_CREATE:
|
---|
2358 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, hEvent == NIL_SUPSEMEVENT);
|
---|
2359 | pReq->Hdr.rc = SUPSemEventCreate(pSession, &hEvent);
|
---|
2360 | pReq->u.Out.hSem = (uint32_t)(uintptr_t)hEvent;
|
---|
2361 | break;
|
---|
2362 | case SUPSEMOP3_GET_RESOLUTION:
|
---|
2363 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, hEvent == NIL_SUPSEMEVENT);
|
---|
2364 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
2365 | pReq->Hdr.cbOut = sizeof(*pReq);
|
---|
2366 | pReq->u.Out.cNsResolution = SUPSemEventGetResolution(pSession);
|
---|
2367 | break;
|
---|
2368 | default:
|
---|
2369 | pReq->Hdr.rc = VERR_INVALID_FUNCTION;
|
---|
2370 | break;
|
---|
2371 | }
|
---|
2372 | break;
|
---|
2373 | }
|
---|
2374 |
|
---|
2375 | case SUP_SEM_TYPE_EVENT_MULTI:
|
---|
2376 | {
|
---|
2377 | SUPSEMEVENTMULTI hEventMulti = (SUPSEMEVENTMULTI)(uintptr_t)pReq->u.In.hSem;
|
---|
2378 | switch (pReq->u.In.uOp)
|
---|
2379 | {
|
---|
2380 | case SUPSEMOP3_CREATE:
|
---|
2381 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, hEventMulti == NIL_SUPSEMEVENTMULTI);
|
---|
2382 | pReq->Hdr.rc = SUPSemEventMultiCreate(pSession, &hEventMulti);
|
---|
2383 | pReq->u.Out.hSem = (uint32_t)(uintptr_t)hEventMulti;
|
---|
2384 | break;
|
---|
2385 | case SUPSEMOP3_GET_RESOLUTION:
|
---|
2386 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, hEventMulti == NIL_SUPSEMEVENTMULTI);
|
---|
2387 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
2388 | pReq->u.Out.cNsResolution = SUPSemEventMultiGetResolution(pSession);
|
---|
2389 | break;
|
---|
2390 | default:
|
---|
2391 | pReq->Hdr.rc = VERR_INVALID_FUNCTION;
|
---|
2392 | break;
|
---|
2393 | }
|
---|
2394 | break;
|
---|
2395 | }
|
---|
2396 |
|
---|
2397 | default:
|
---|
2398 | pReq->Hdr.rc = VERR_INVALID_PARAMETER;
|
---|
2399 | break;
|
---|
2400 | }
|
---|
2401 | return 0;
|
---|
2402 | }
|
---|
2403 |
|
---|
2404 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_VT_CAPS):
|
---|
2405 | {
|
---|
2406 | /* validate */
|
---|
2407 | PSUPVTCAPS pReq = (PSUPVTCAPS)pReqHdr;
|
---|
2408 | REQ_CHECK_SIZES(SUP_IOCTL_VT_CAPS);
|
---|
2409 |
|
---|
2410 | /* execute */
|
---|
2411 | pReq->Hdr.rc = SUPR0QueryVTCaps(pSession, &pReq->u.Out.fCaps);
|
---|
2412 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2413 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2414 | return 0;
|
---|
2415 | }
|
---|
2416 |
|
---|
2417 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_OPEN):
|
---|
2418 | {
|
---|
2419 | /* validate */
|
---|
2420 | PSUPTRACEROPEN pReq = (PSUPTRACEROPEN)pReqHdr;
|
---|
2421 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_OPEN);
|
---|
2422 |
|
---|
2423 | /* execute */
|
---|
2424 | pReq->Hdr.rc = supdrvIOCtl_TracerOpen(pDevExt, pSession, pReq->u.In.uCookie, pReq->u.In.uArg);
|
---|
2425 | return 0;
|
---|
2426 | }
|
---|
2427 |
|
---|
2428 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_CLOSE):
|
---|
2429 | {
|
---|
2430 | /* validate */
|
---|
2431 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_CLOSE);
|
---|
2432 |
|
---|
2433 | /* execute */
|
---|
2434 | pReqHdr->rc = supdrvIOCtl_TracerClose(pDevExt, pSession);
|
---|
2435 | return 0;
|
---|
2436 | }
|
---|
2437 |
|
---|
2438 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_IOCTL):
|
---|
2439 | {
|
---|
2440 | /* validate */
|
---|
2441 | PSUPTRACERIOCTL pReq = (PSUPTRACERIOCTL)pReqHdr;
|
---|
2442 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_IOCTL);
|
---|
2443 |
|
---|
2444 | /* execute */
|
---|
2445 | pReqHdr->rc = supdrvIOCtl_TracerIOCtl(pDevExt, pSession, pReq->u.In.uCmd, pReq->u.In.uArg, &pReq->u.Out.iRetVal);
|
---|
2446 | return 0;
|
---|
2447 | }
|
---|
2448 |
|
---|
2449 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_UMOD_REG):
|
---|
2450 | {
|
---|
2451 | /* validate */
|
---|
2452 | PSUPTRACERUMODREG pReq = (PSUPTRACERUMODREG)pReqHdr;
|
---|
2453 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_UMOD_REG);
|
---|
2454 | if (!RTStrEnd(pReq->u.In.szName, sizeof(pReq->u.In.szName)))
|
---|
2455 | return VERR_INVALID_PARAMETER;
|
---|
2456 |
|
---|
2457 | /* execute */
|
---|
2458 | pReqHdr->rc = supdrvIOCtl_TracerUmodRegister(pDevExt, pSession,
|
---|
2459 | pReq->u.In.R3PtrVtgHdr, pReq->u.In.uVtgHdrAddr,
|
---|
2460 | pReq->u.In.R3PtrStrTab, pReq->u.In.cbStrTab,
|
---|
2461 | pReq->u.In.szName, pReq->u.In.fFlags);
|
---|
2462 | return 0;
|
---|
2463 | }
|
---|
2464 |
|
---|
2465 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_UMOD_DEREG):
|
---|
2466 | {
|
---|
2467 | /* validate */
|
---|
2468 | PSUPTRACERUMODDEREG pReq = (PSUPTRACERUMODDEREG)pReqHdr;
|
---|
2469 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_UMOD_DEREG);
|
---|
2470 |
|
---|
2471 | /* execute */
|
---|
2472 | pReqHdr->rc = supdrvIOCtl_TracerUmodDeregister(pDevExt, pSession, pReq->u.In.pVtgHdr);
|
---|
2473 | return 0;
|
---|
2474 | }
|
---|
2475 |
|
---|
2476 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_UMOD_FIRE_PROBE):
|
---|
2477 | {
|
---|
2478 | /* validate */
|
---|
2479 | PSUPTRACERUMODFIREPROBE pReq = (PSUPTRACERUMODFIREPROBE)pReqHdr;
|
---|
2480 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_UMOD_FIRE_PROBE);
|
---|
2481 |
|
---|
2482 | supdrvIOCtl_TracerUmodProbeFire(pDevExt, pSession, &pReq->u.In);
|
---|
2483 | pReqHdr->rc = VINF_SUCCESS;
|
---|
2484 | return 0;
|
---|
2485 | }
|
---|
2486 |
|
---|
2487 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_MSR_PROBER):
|
---|
2488 | {
|
---|
2489 | /* validate */
|
---|
2490 | PSUPMSRPROBER pReq = (PSUPMSRPROBER)pReqHdr;
|
---|
2491 | REQ_CHECK_SIZES(SUP_IOCTL_MSR_PROBER);
|
---|
2492 | REQ_CHECK_EXPR(SUP_IOCTL_MSR_PROBER,
|
---|
2493 | pReq->u.In.enmOp > SUPMSRPROBEROP_INVALID && pReq->u.In.enmOp < SUPMSRPROBEROP_END);
|
---|
2494 |
|
---|
2495 | pReqHdr->rc = supdrvIOCtl_MsrProber(pDevExt, pReq);
|
---|
2496 | return 0;
|
---|
2497 | }
|
---|
2498 |
|
---|
2499 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_RESUME_SUSPENDED_KBDS):
|
---|
2500 | {
|
---|
2501 | /* validate */
|
---|
2502 | REQ_CHECK_SIZES(SUP_IOCTL_RESUME_SUSPENDED_KBDS);
|
---|
2503 |
|
---|
2504 | pReqHdr->rc = supdrvIOCtl_ResumeSuspendedKbds();
|
---|
2505 | return 0;
|
---|
2506 | }
|
---|
2507 |
|
---|
2508 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TSC_DELTA_MEASURE):
|
---|
2509 | {
|
---|
2510 | /* validate */
|
---|
2511 | PSUPTSCDELTAMEASURE pReq = (PSUPTSCDELTAMEASURE)pReqHdr;
|
---|
2512 | REQ_CHECK_SIZES(SUP_IOCTL_TSC_DELTA_MEASURE);
|
---|
2513 |
|
---|
2514 | pReqHdr->rc = supdrvIOCtl_TscDeltaMeasure(pDevExt, pSession, pReq);
|
---|
2515 | return 0;
|
---|
2516 | }
|
---|
2517 |
|
---|
2518 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TSC_READ):
|
---|
2519 | {
|
---|
2520 | /* validate */
|
---|
2521 | PSUPTSCREAD pReq = (PSUPTSCREAD)pReqHdr;
|
---|
2522 | REQ_CHECK_SIZES(SUP_IOCTL_TSC_READ);
|
---|
2523 |
|
---|
2524 | pReqHdr->rc = supdrvIOCtl_TscRead(pDevExt, pSession, pReq);
|
---|
2525 | return 0;
|
---|
2526 | }
|
---|
2527 |
|
---|
2528 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GIP_SET_FLAGS):
|
---|
2529 | {
|
---|
2530 | /* validate */
|
---|
2531 | PSUPGIPSETFLAGS pReq = (PSUPGIPSETFLAGS)pReqHdr;
|
---|
2532 | REQ_CHECK_SIZES(SUP_IOCTL_GIP_SET_FLAGS);
|
---|
2533 |
|
---|
2534 | pReqHdr->rc = supdrvIOCtl_GipSetFlags(pDevExt, pSession, pReq->u.In.fOrMask, pReq->u.In.fAndMask);
|
---|
2535 | return 0;
|
---|
2536 | }
|
---|
2537 |
|
---|
2538 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_UCODE_REV):
|
---|
2539 | {
|
---|
2540 | /* validate */
|
---|
2541 | PSUPUCODEREV pReq = (PSUPUCODEREV)pReqHdr;
|
---|
2542 | REQ_CHECK_SIZES(SUP_IOCTL_UCODE_REV);
|
---|
2543 |
|
---|
2544 | /* execute */
|
---|
2545 | pReq->Hdr.rc = SUPR0QueryUcodeRev(pSession, &pReq->u.Out.MicrocodeRev);
|
---|
2546 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2547 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2548 | return 0;
|
---|
2549 | }
|
---|
2550 |
|
---|
2551 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GET_HWVIRT_MSRS):
|
---|
2552 | {
|
---|
2553 | /* validate */
|
---|
2554 | PSUPGETHWVIRTMSRS pReq = (PSUPGETHWVIRTMSRS)pReqHdr;
|
---|
2555 | REQ_CHECK_SIZES(SUP_IOCTL_GET_HWVIRT_MSRS);
|
---|
2556 | REQ_CHECK_EXPR_FMT(!pReq->u.In.fReserved0 && !pReq->u.In.fReserved1 && !pReq->u.In.fReserved2,
|
---|
2557 | ("SUP_IOCTL_GET_HWVIRT_MSRS: fReserved0=%d fReserved1=%d fReserved2=%d\n", pReq->u.In.fReserved0,
|
---|
2558 | pReq->u.In.fReserved1, pReq->u.In.fReserved2));
|
---|
2559 |
|
---|
2560 | /* execute */
|
---|
2561 | pReq->Hdr.rc = SUPR0GetHwvirtMsrs(&pReq->u.Out.HwvirtMsrs, 0 /* fCaps */, pReq->u.In.fForce);
|
---|
2562 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2563 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2564 | return 0;
|
---|
2565 | }
|
---|
2566 |
|
---|
2567 | default:
|
---|
2568 | Log(("Unknown IOCTL %#lx\n", (long)uIOCtl));
|
---|
2569 | break;
|
---|
2570 | }
|
---|
2571 | return VERR_GENERAL_FAILURE;
|
---|
2572 | }
|
---|
2573 |
|
---|
2574 |
|
---|
2575 | /**
|
---|
2576 | * I/O Control inner worker for the restricted operations.
|
---|
2577 | *
|
---|
2578 | * @returns IPRT status code.
|
---|
2579 | * @retval VERR_INVALID_PARAMETER if the request is invalid.
|
---|
2580 | *
|
---|
2581 | * @param uIOCtl Function number.
|
---|
2582 | * @param pDevExt Device extention.
|
---|
2583 | * @param pSession Session data.
|
---|
2584 | * @param pReqHdr The request header.
|
---|
2585 | */
|
---|
2586 | static int supdrvIOCtlInnerRestricted(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr)
|
---|
2587 | {
|
---|
2588 | /*
|
---|
2589 | * The switch.
|
---|
2590 | */
|
---|
2591 | switch (SUP_CTL_CODE_NO_SIZE(uIOCtl))
|
---|
2592 | {
|
---|
2593 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_COOKIE):
|
---|
2594 | {
|
---|
2595 | PSUPCOOKIE pReq = (PSUPCOOKIE)pReqHdr;
|
---|
2596 | REQ_CHECK_SIZES(SUP_IOCTL_COOKIE);
|
---|
2597 | if (strncmp(pReq->u.In.szMagic, SUPCOOKIE_MAGIC, sizeof(pReq->u.In.szMagic)))
|
---|
2598 | {
|
---|
2599 | OSDBGPRINT(("SUP_IOCTL_COOKIE: invalid magic %.16s\n", pReq->u.In.szMagic));
|
---|
2600 | pReq->Hdr.rc = VERR_INVALID_MAGIC;
|
---|
2601 | return 0;
|
---|
2602 | }
|
---|
2603 |
|
---|
2604 | /*
|
---|
2605 | * Match the version.
|
---|
2606 | * The current logic is very simple, match the major interface version.
|
---|
2607 | */
|
---|
2608 | if ( pReq->u.In.u32MinVersion > SUPDRV_IOC_VERSION
|
---|
2609 | || (pReq->u.In.u32MinVersion & 0xffff0000) != (SUPDRV_IOC_VERSION & 0xffff0000))
|
---|
2610 | {
|
---|
2611 | OSDBGPRINT(("SUP_IOCTL_COOKIE: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
|
---|
2612 | pReq->u.In.u32ReqVersion, pReq->u.In.u32MinVersion, SUPDRV_IOC_VERSION));
|
---|
2613 | pReq->u.Out.u32Cookie = 0xffffffff;
|
---|
2614 | pReq->u.Out.u32SessionCookie = 0xffffffff;
|
---|
2615 | pReq->u.Out.u32SessionVersion = 0xffffffff;
|
---|
2616 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
2617 | pReq->u.Out.pSession = NULL;
|
---|
2618 | pReq->u.Out.cFunctions = 0;
|
---|
2619 | pReq->Hdr.rc = VERR_VERSION_MISMATCH;
|
---|
2620 | return 0;
|
---|
2621 | }
|
---|
2622 |
|
---|
2623 | /*
|
---|
2624 | * Fill in return data and be gone.
|
---|
2625 | * N.B. The first one to change SUPDRV_IOC_VERSION shall makes sure that
|
---|
2626 | * u32SessionVersion <= u32ReqVersion!
|
---|
2627 | */
|
---|
2628 | /** @todo Somehow validate the client and negotiate a secure cookie... */
|
---|
2629 | pReq->u.Out.u32Cookie = pDevExt->u32Cookie;
|
---|
2630 | pReq->u.Out.u32SessionCookie = pSession->u32Cookie;
|
---|
2631 | pReq->u.Out.u32SessionVersion = SUPDRV_IOC_VERSION;
|
---|
2632 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
2633 | pReq->u.Out.pSession = NULL;
|
---|
2634 | pReq->u.Out.cFunctions = 0;
|
---|
2635 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
2636 | return 0;
|
---|
2637 | }
|
---|
2638 |
|
---|
2639 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_VT_CAPS):
|
---|
2640 | {
|
---|
2641 | /* validate */
|
---|
2642 | PSUPVTCAPS pReq = (PSUPVTCAPS)pReqHdr;
|
---|
2643 | REQ_CHECK_SIZES(SUP_IOCTL_VT_CAPS);
|
---|
2644 |
|
---|
2645 | /* execute */
|
---|
2646 | pReq->Hdr.rc = SUPR0QueryVTCaps(pSession, &pReq->u.Out.fCaps);
|
---|
2647 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2648 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2649 | return 0;
|
---|
2650 | }
|
---|
2651 |
|
---|
2652 | default:
|
---|
2653 | Log(("Unknown IOCTL %#lx\n", (long)uIOCtl));
|
---|
2654 | break;
|
---|
2655 | }
|
---|
2656 | return VERR_GENERAL_FAILURE;
|
---|
2657 | }
|
---|
2658 |
|
---|
2659 |
|
---|
2660 | /**
|
---|
2661 | * I/O Control worker.
|
---|
2662 | *
|
---|
2663 | * @returns IPRT status code.
|
---|
2664 | * @retval VERR_INVALID_PARAMETER if the request is invalid.
|
---|
2665 | *
|
---|
2666 | * @param uIOCtl Function number.
|
---|
2667 | * @param pDevExt Device extention.
|
---|
2668 | * @param pSession Session data.
|
---|
2669 | * @param pReqHdr The request header.
|
---|
2670 | * @param cbReq The size of the request buffer.
|
---|
2671 | */
|
---|
2672 | int VBOXCALL supdrvIOCtl(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr, size_t cbReq)
|
---|
2673 | {
|
---|
2674 | int rc;
|
---|
2675 | VBOXDRV_IOCTL_ENTRY(pSession, uIOCtl, pReqHdr);
|
---|
2676 |
|
---|
2677 | /*
|
---|
2678 | * Validate the request.
|
---|
2679 | */
|
---|
2680 | if (RT_UNLIKELY(cbReq < sizeof(*pReqHdr)))
|
---|
2681 | {
|
---|
2682 | OSDBGPRINT(("vboxdrv: Bad ioctl request size; cbReq=%#lx\n", (long)cbReq));
|
---|
2683 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2684 | return VERR_INVALID_PARAMETER;
|
---|
2685 | }
|
---|
2686 | if (RT_UNLIKELY( (pReqHdr->fFlags & SUPREQHDR_FLAGS_MAGIC_MASK) != SUPREQHDR_FLAGS_MAGIC
|
---|
2687 | || pReqHdr->cbIn < sizeof(*pReqHdr)
|
---|
2688 | || pReqHdr->cbIn > cbReq
|
---|
2689 | || pReqHdr->cbOut < sizeof(*pReqHdr)
|
---|
2690 | || pReqHdr->cbOut > cbReq))
|
---|
2691 | {
|
---|
2692 | OSDBGPRINT(("vboxdrv: Bad ioctl request header; cbIn=%#lx cbOut=%#lx fFlags=%#lx\n",
|
---|
2693 | (long)pReqHdr->cbIn, (long)pReqHdr->cbOut, (long)pReqHdr->fFlags));
|
---|
2694 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2695 | return VERR_INVALID_PARAMETER;
|
---|
2696 | }
|
---|
2697 | if (RT_UNLIKELY(!RT_VALID_PTR(pSession)))
|
---|
2698 | {
|
---|
2699 | OSDBGPRINT(("vboxdrv: Invalid pSession value %p (ioctl=%p)\n", pSession, (void *)uIOCtl));
|
---|
2700 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2701 | return VERR_INVALID_PARAMETER;
|
---|
2702 | }
|
---|
2703 | if (RT_UNLIKELY(uIOCtl == SUP_IOCTL_COOKIE))
|
---|
2704 | {
|
---|
2705 | if (pReqHdr->u32Cookie != SUPCOOKIE_INITIAL_COOKIE)
|
---|
2706 | {
|
---|
2707 | OSDBGPRINT(("SUP_IOCTL_COOKIE: bad cookie %#lx\n", (long)pReqHdr->u32Cookie));
|
---|
2708 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2709 | return VERR_INVALID_PARAMETER;
|
---|
2710 | }
|
---|
2711 | }
|
---|
2712 | else if (RT_UNLIKELY( pReqHdr->u32Cookie != pDevExt->u32Cookie
|
---|
2713 | || pReqHdr->u32SessionCookie != pSession->u32Cookie))
|
---|
2714 | {
|
---|
2715 | OSDBGPRINT(("vboxdrv: bad cookie %#lx / %#lx.\n", (long)pReqHdr->u32Cookie, (long)pReqHdr->u32SessionCookie));
|
---|
2716 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2717 | return VERR_INVALID_PARAMETER;
|
---|
2718 | }
|
---|
2719 |
|
---|
2720 | /*
|
---|
2721 | * Hand it to an inner function to avoid lots of unnecessary return tracepoints.
|
---|
2722 | */
|
---|
2723 | if (pSession->fUnrestricted)
|
---|
2724 | rc = supdrvIOCtlInnerUnrestricted(uIOCtl, pDevExt, pSession, pReqHdr);
|
---|
2725 | else
|
---|
2726 | rc = supdrvIOCtlInnerRestricted(uIOCtl, pDevExt, pSession, pReqHdr);
|
---|
2727 |
|
---|
2728 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, pReqHdr->rc, rc);
|
---|
2729 | return rc;
|
---|
2730 | }
|
---|
2731 |
|
---|
2732 |
|
---|
2733 | /**
|
---|
2734 | * Inter-Driver Communication (IDC) worker.
|
---|
2735 | *
|
---|
2736 | * @returns VBox status code.
|
---|
2737 | * @retval VINF_SUCCESS on success.
|
---|
2738 | * @retval VERR_INVALID_PARAMETER if the request is invalid.
|
---|
2739 | * @retval VERR_NOT_SUPPORTED if the request isn't supported.
|
---|
2740 | *
|
---|
2741 | * @param uReq The request (function) code.
|
---|
2742 | * @param pDevExt Device extention.
|
---|
2743 | * @param pSession Session data.
|
---|
2744 | * @param pReqHdr The request header.
|
---|
2745 | */
|
---|
2746 | int VBOXCALL supdrvIDC(uintptr_t uReq, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQHDR pReqHdr)
|
---|
2747 | {
|
---|
2748 | /*
|
---|
2749 | * The OS specific code has already validated the pSession
|
---|
2750 | * pointer, and the request size being greater or equal to
|
---|
2751 | * size of the header.
|
---|
2752 | *
|
---|
2753 | * So, just check that pSession is a kernel context session.
|
---|
2754 | */
|
---|
2755 | if (RT_UNLIKELY( pSession
|
---|
2756 | && pSession->R0Process != NIL_RTR0PROCESS))
|
---|
2757 | return VERR_INVALID_PARAMETER;
|
---|
2758 |
|
---|
2759 | /*
|
---|
2760 | * Validation macro.
|
---|
2761 | */
|
---|
2762 | #define REQ_CHECK_IDC_SIZE(Name, cbExpect) \
|
---|
2763 | do { \
|
---|
2764 | if (RT_UNLIKELY(pReqHdr->cb != (cbExpect))) \
|
---|
2765 | { \
|
---|
2766 | OSDBGPRINT(( #Name ": Invalid input/output sizes. cb=%ld expected %ld.\n", \
|
---|
2767 | (long)pReqHdr->cb, (long)(cbExpect))); \
|
---|
2768 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
2769 | } \
|
---|
2770 | } while (0)
|
---|
2771 |
|
---|
2772 | switch (uReq)
|
---|
2773 | {
|
---|
2774 | case SUPDRV_IDC_REQ_CONNECT:
|
---|
2775 | {
|
---|
2776 | PSUPDRVIDCREQCONNECT pReq = (PSUPDRVIDCREQCONNECT)pReqHdr;
|
---|
2777 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_CONNECT, sizeof(*pReq));
|
---|
2778 |
|
---|
2779 | /*
|
---|
2780 | * Validate the cookie and other input.
|
---|
2781 | */
|
---|
2782 | if (pReq->Hdr.pSession != NULL)
|
---|
2783 | {
|
---|
2784 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: Hdr.pSession=%p expected NULL!\n", pReq->Hdr.pSession));
|
---|
2785 | return pReqHdr->rc = VERR_INVALID_PARAMETER;
|
---|
2786 | }
|
---|
2787 | if (pReq->u.In.u32MagicCookie != SUPDRVIDCREQ_CONNECT_MAGIC_COOKIE)
|
---|
2788 | {
|
---|
2789 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: u32MagicCookie=%#x expected %#x!\n",
|
---|
2790 | (unsigned)pReq->u.In.u32MagicCookie, (unsigned)SUPDRVIDCREQ_CONNECT_MAGIC_COOKIE));
|
---|
2791 | return pReqHdr->rc = VERR_INVALID_PARAMETER;
|
---|
2792 | }
|
---|
2793 | if ( pReq->u.In.uMinVersion > pReq->u.In.uReqVersion
|
---|
2794 | || (pReq->u.In.uMinVersion & UINT32_C(0xffff0000)) != (pReq->u.In.uReqVersion & UINT32_C(0xffff0000)))
|
---|
2795 | {
|
---|
2796 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: uMinVersion=%#x uMaxVersion=%#x doesn't match!\n",
|
---|
2797 | pReq->u.In.uMinVersion, pReq->u.In.uReqVersion));
|
---|
2798 | return pReqHdr->rc = VERR_INVALID_PARAMETER;
|
---|
2799 | }
|
---|
2800 | if (pSession != NULL)
|
---|
2801 | {
|
---|
2802 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: pSession=%p expected NULL!\n", pSession));
|
---|
2803 | return pReqHdr->rc = VERR_INVALID_PARAMETER;
|
---|
2804 | }
|
---|
2805 |
|
---|
2806 | /*
|
---|
2807 | * Match the version.
|
---|
2808 | * The current logic is very simple, match the major interface version.
|
---|
2809 | */
|
---|
2810 | if ( pReq->u.In.uMinVersion > SUPDRV_IDC_VERSION
|
---|
2811 | || (pReq->u.In.uMinVersion & 0xffff0000) != (SUPDRV_IDC_VERSION & 0xffff0000))
|
---|
2812 | {
|
---|
2813 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
|
---|
2814 | pReq->u.In.uReqVersion, pReq->u.In.uMinVersion, (unsigned)SUPDRV_IDC_VERSION));
|
---|
2815 | pReq->u.Out.pSession = NULL;
|
---|
2816 | pReq->u.Out.uSessionVersion = 0xffffffff;
|
---|
2817 | pReq->u.Out.uDriverVersion = SUPDRV_IDC_VERSION;
|
---|
2818 | pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
|
---|
2819 | pReq->Hdr.rc = VERR_VERSION_MISMATCH;
|
---|
2820 | return VINF_SUCCESS;
|
---|
2821 | }
|
---|
2822 |
|
---|
2823 | pReq->u.Out.pSession = NULL;
|
---|
2824 | pReq->u.Out.uSessionVersion = SUPDRV_IDC_VERSION;
|
---|
2825 | pReq->u.Out.uDriverVersion = SUPDRV_IDC_VERSION;
|
---|
2826 | pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
|
---|
2827 |
|
---|
2828 | pReq->Hdr.rc = supdrvCreateSession(pDevExt, false /* fUser */, true /*fUnrestricted*/, &pSession);
|
---|
2829 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2830 | {
|
---|
2831 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: failed to create session, rc=%d\n", pReq->Hdr.rc));
|
---|
2832 | return VINF_SUCCESS;
|
---|
2833 | }
|
---|
2834 |
|
---|
2835 | pReq->u.Out.pSession = pSession;
|
---|
2836 | pReq->Hdr.pSession = pSession;
|
---|
2837 |
|
---|
2838 | return VINF_SUCCESS;
|
---|
2839 | }
|
---|
2840 |
|
---|
2841 | case SUPDRV_IDC_REQ_DISCONNECT:
|
---|
2842 | {
|
---|
2843 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_DISCONNECT, sizeof(*pReqHdr));
|
---|
2844 |
|
---|
2845 | supdrvSessionRelease(pSession);
|
---|
2846 | return pReqHdr->rc = VINF_SUCCESS;
|
---|
2847 | }
|
---|
2848 |
|
---|
2849 | case SUPDRV_IDC_REQ_GET_SYMBOL:
|
---|
2850 | {
|
---|
2851 | PSUPDRVIDCREQGETSYM pReq = (PSUPDRVIDCREQGETSYM)pReqHdr;
|
---|
2852 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_GET_SYMBOL, sizeof(*pReq));
|
---|
2853 |
|
---|
2854 | pReq->Hdr.rc = supdrvIDC_LdrGetSymbol(pDevExt, pSession, pReq);
|
---|
2855 | return VINF_SUCCESS;
|
---|
2856 | }
|
---|
2857 |
|
---|
2858 | case SUPDRV_IDC_REQ_COMPONENT_REGISTER_FACTORY:
|
---|
2859 | {
|
---|
2860 | PSUPDRVIDCREQCOMPREGFACTORY pReq = (PSUPDRVIDCREQCOMPREGFACTORY)pReqHdr;
|
---|
2861 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_COMPONENT_REGISTER_FACTORY, sizeof(*pReq));
|
---|
2862 |
|
---|
2863 | pReq->Hdr.rc = SUPR0ComponentRegisterFactory(pSession, pReq->u.In.pFactory);
|
---|
2864 | return VINF_SUCCESS;
|
---|
2865 | }
|
---|
2866 |
|
---|
2867 | case SUPDRV_IDC_REQ_COMPONENT_DEREGISTER_FACTORY:
|
---|
2868 | {
|
---|
2869 | PSUPDRVIDCREQCOMPDEREGFACTORY pReq = (PSUPDRVIDCREQCOMPDEREGFACTORY)pReqHdr;
|
---|
2870 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_COMPONENT_DEREGISTER_FACTORY, sizeof(*pReq));
|
---|
2871 |
|
---|
2872 | pReq->Hdr.rc = SUPR0ComponentDeregisterFactory(pSession, pReq->u.In.pFactory);
|
---|
2873 | return VINF_SUCCESS;
|
---|
2874 | }
|
---|
2875 |
|
---|
2876 | default:
|
---|
2877 | Log(("Unknown IDC %#lx\n", (long)uReq));
|
---|
2878 | break;
|
---|
2879 | }
|
---|
2880 |
|
---|
2881 | #undef REQ_CHECK_IDC_SIZE
|
---|
2882 | return VERR_NOT_SUPPORTED;
|
---|
2883 | }
|
---|
2884 |
|
---|
2885 |
|
---|
2886 | /**
|
---|
2887 | * Register a object for reference counting.
|
---|
2888 | * The object is registered with one reference in the specified session.
|
---|
2889 | *
|
---|
2890 | * @returns Unique identifier on success (pointer).
|
---|
2891 | * All future reference must use this identifier.
|
---|
2892 | * @returns NULL on failure.
|
---|
2893 | * @param pSession The caller's session.
|
---|
2894 | * @param enmType The object type.
|
---|
2895 | * @param pfnDestructor The destructore function which will be called when the reference count reaches 0.
|
---|
2896 | * @param pvUser1 The first user argument.
|
---|
2897 | * @param pvUser2 The second user argument.
|
---|
2898 | */
|
---|
2899 | SUPR0DECL(void *) SUPR0ObjRegister(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void *pvUser1, void *pvUser2)
|
---|
2900 | {
|
---|
2901 | PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
|
---|
2902 | PSUPDRVOBJ pObj;
|
---|
2903 | PSUPDRVUSAGE pUsage;
|
---|
2904 |
|
---|
2905 | /*
|
---|
2906 | * Validate the input.
|
---|
2907 | */
|
---|
2908 | AssertReturn(SUP_IS_SESSION_VALID(pSession), NULL);
|
---|
2909 | AssertReturn(enmType > SUPDRVOBJTYPE_INVALID && enmType < SUPDRVOBJTYPE_END, NULL);
|
---|
2910 | AssertPtrReturn(pfnDestructor, NULL);
|
---|
2911 |
|
---|
2912 | /*
|
---|
2913 | * Allocate and initialize the object.
|
---|
2914 | */
|
---|
2915 | pObj = (PSUPDRVOBJ)RTMemAlloc(sizeof(*pObj));
|
---|
2916 | if (!pObj)
|
---|
2917 | return NULL;
|
---|
2918 | pObj->u32Magic = SUPDRVOBJ_MAGIC;
|
---|
2919 | pObj->enmType = enmType;
|
---|
2920 | pObj->pNext = NULL;
|
---|
2921 | pObj->cUsage = 1;
|
---|
2922 | pObj->pfnDestructor = pfnDestructor;
|
---|
2923 | pObj->pvUser1 = pvUser1;
|
---|
2924 | pObj->pvUser2 = pvUser2;
|
---|
2925 | pObj->CreatorUid = pSession->Uid;
|
---|
2926 | pObj->CreatorGid = pSession->Gid;
|
---|
2927 | pObj->CreatorProcess= pSession->Process;
|
---|
2928 | supdrvOSObjInitCreator(pObj, pSession);
|
---|
2929 |
|
---|
2930 | /*
|
---|
2931 | * Allocate the usage record.
|
---|
2932 | * (We keep freed usage records around to simplify SUPR0ObjAddRefEx().)
|
---|
2933 | */
|
---|
2934 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
2935 |
|
---|
2936 | pUsage = pDevExt->pUsageFree;
|
---|
2937 | if (pUsage)
|
---|
2938 | pDevExt->pUsageFree = pUsage->pNext;
|
---|
2939 | else
|
---|
2940 | {
|
---|
2941 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2942 | pUsage = (PSUPDRVUSAGE)RTMemAlloc(sizeof(*pUsage));
|
---|
2943 | if (!pUsage)
|
---|
2944 | {
|
---|
2945 | RTMemFree(pObj);
|
---|
2946 | return NULL;
|
---|
2947 | }
|
---|
2948 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
2949 | }
|
---|
2950 |
|
---|
2951 | /*
|
---|
2952 | * Insert the object and create the session usage record.
|
---|
2953 | */
|
---|
2954 | /* The object. */
|
---|
2955 | pObj->pNext = pDevExt->pObjs;
|
---|
2956 | pDevExt->pObjs = pObj;
|
---|
2957 |
|
---|
2958 | /* The session record. */
|
---|
2959 | pUsage->cUsage = 1;
|
---|
2960 | pUsage->pObj = pObj;
|
---|
2961 | pUsage->pNext = pSession->pUsage;
|
---|
2962 | /* Log2(("SUPR0ObjRegister: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext)); */
|
---|
2963 | pSession->pUsage = pUsage;
|
---|
2964 |
|
---|
2965 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2966 |
|
---|
2967 | Log(("SUPR0ObjRegister: returns %p (pvUser1=%p, pvUser=%p)\n", pObj, pvUser1, pvUser2));
|
---|
2968 | return pObj;
|
---|
2969 | }
|
---|
2970 | SUPR0_EXPORT_SYMBOL(SUPR0ObjRegister);
|
---|
2971 |
|
---|
2972 |
|
---|
2973 | /**
|
---|
2974 | * Increment the reference counter for the object associating the reference
|
---|
2975 | * with the specified session.
|
---|
2976 | *
|
---|
2977 | * @returns IPRT status code.
|
---|
2978 | * @param pvObj The identifier returned by SUPR0ObjRegister().
|
---|
2979 | * @param pSession The session which is referencing the object.
|
---|
2980 | *
|
---|
2981 | * @remarks The caller should not own any spinlocks and must carefully protect
|
---|
2982 | * itself against potential race with the destructor so freed memory
|
---|
2983 | * isn't accessed here.
|
---|
2984 | */
|
---|
2985 | SUPR0DECL(int) SUPR0ObjAddRef(void *pvObj, PSUPDRVSESSION pSession)
|
---|
2986 | {
|
---|
2987 | return SUPR0ObjAddRefEx(pvObj, pSession, false /* fNoBlocking */);
|
---|
2988 | }
|
---|
2989 | SUPR0_EXPORT_SYMBOL(SUPR0ObjAddRef);
|
---|
2990 |
|
---|
2991 |
|
---|
2992 | /**
|
---|
2993 | * Increment the reference counter for the object associating the reference
|
---|
2994 | * with the specified session.
|
---|
2995 | *
|
---|
2996 | * @returns IPRT status code.
|
---|
2997 | * @retval VERR_TRY_AGAIN if fNoBlocking was set and a new usage record
|
---|
2998 | * couldn't be allocated. (If you see this you're not doing the right
|
---|
2999 | * thing and it won't ever work reliably.)
|
---|
3000 | *
|
---|
3001 | * @param pvObj The identifier returned by SUPR0ObjRegister().
|
---|
3002 | * @param pSession The session which is referencing the object.
|
---|
3003 | * @param fNoBlocking Set if it's not OK to block. Never try to make the
|
---|
3004 | * first reference to an object in a session with this
|
---|
3005 | * argument set.
|
---|
3006 | *
|
---|
3007 | * @remarks The caller should not own any spinlocks and must carefully protect
|
---|
3008 | * itself against potential race with the destructor so freed memory
|
---|
3009 | * isn't accessed here.
|
---|
3010 | */
|
---|
3011 | SUPR0DECL(int) SUPR0ObjAddRefEx(void *pvObj, PSUPDRVSESSION pSession, bool fNoBlocking)
|
---|
3012 | {
|
---|
3013 | PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
|
---|
3014 | PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
|
---|
3015 | int rc = VINF_SUCCESS;
|
---|
3016 | PSUPDRVUSAGE pUsagePre;
|
---|
3017 | PSUPDRVUSAGE pUsage;
|
---|
3018 |
|
---|
3019 | /*
|
---|
3020 | * Validate the input.
|
---|
3021 | * Be ready for the destruction race (someone might be stuck in the
|
---|
3022 | * destructor waiting a lock we own).
|
---|
3023 | */
|
---|
3024 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3025 | AssertPtrReturn(pObj, VERR_INVALID_POINTER);
|
---|
3026 | AssertMsgReturn(pObj->u32Magic == SUPDRVOBJ_MAGIC || pObj->u32Magic == SUPDRVOBJ_MAGIC_DEAD,
|
---|
3027 | ("Invalid pvObj=%p magic=%#x (expected %#x or %#x)\n", pvObj, pObj->u32Magic, SUPDRVOBJ_MAGIC, SUPDRVOBJ_MAGIC_DEAD),
|
---|
3028 | VERR_INVALID_PARAMETER);
|
---|
3029 |
|
---|
3030 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
3031 |
|
---|
3032 | if (RT_UNLIKELY(pObj->u32Magic != SUPDRVOBJ_MAGIC))
|
---|
3033 | {
|
---|
3034 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
3035 |
|
---|
3036 | AssertMsgFailed(("pvObj=%p magic=%#x\n", pvObj, pObj->u32Magic));
|
---|
3037 | return VERR_WRONG_ORDER;
|
---|
3038 | }
|
---|
3039 |
|
---|
3040 | /*
|
---|
3041 | * Preallocate the usage record if we can.
|
---|
3042 | */
|
---|
3043 | pUsagePre = pDevExt->pUsageFree;
|
---|
3044 | if (pUsagePre)
|
---|
3045 | pDevExt->pUsageFree = pUsagePre->pNext;
|
---|
3046 | else if (!fNoBlocking)
|
---|
3047 | {
|
---|
3048 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
3049 | pUsagePre = (PSUPDRVUSAGE)RTMemAlloc(sizeof(*pUsagePre));
|
---|
3050 | if (!pUsagePre)
|
---|
3051 | return VERR_NO_MEMORY;
|
---|
3052 |
|
---|
3053 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
3054 | if (RT_UNLIKELY(pObj->u32Magic != SUPDRVOBJ_MAGIC))
|
---|
3055 | {
|
---|
3056 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
3057 |
|
---|
3058 | AssertMsgFailed(("pvObj=%p magic=%#x\n", pvObj, pObj->u32Magic));
|
---|
3059 | return VERR_WRONG_ORDER;
|
---|
3060 | }
|
---|
3061 | }
|
---|
3062 |
|
---|
3063 | /*
|
---|
3064 | * Reference the object.
|
---|
3065 | */
|
---|
3066 | pObj->cUsage++;
|
---|
3067 |
|
---|
3068 | /*
|
---|
3069 | * Look for the session record.
|
---|
3070 | */
|
---|
3071 | for (pUsage = pSession->pUsage; pUsage; pUsage = pUsage->pNext)
|
---|
3072 | {
|
---|
3073 | /*Log(("SUPR0AddRef: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext));*/
|
---|
3074 | if (pUsage->pObj == pObj)
|
---|
3075 | break;
|
---|
3076 | }
|
---|
3077 | if (pUsage)
|
---|
3078 | pUsage->cUsage++;
|
---|
3079 | else if (pUsagePre)
|
---|
3080 | {
|
---|
3081 | /* create a new session record. */
|
---|
3082 | pUsagePre->cUsage = 1;
|
---|
3083 | pUsagePre->pObj = pObj;
|
---|
3084 | pUsagePre->pNext = pSession->pUsage;
|
---|
3085 | pSession->pUsage = pUsagePre;
|
---|
3086 | /*Log(("SUPR0AddRef: pUsagePre=%p:{.pObj=%p, .pNext=%p}\n", pUsagePre, pUsagePre->pObj, pUsagePre->pNext));*/
|
---|
3087 |
|
---|
3088 | pUsagePre = NULL;
|
---|
3089 | }
|
---|
3090 | else
|
---|
3091 | {
|
---|
3092 | pObj->cUsage--;
|
---|
3093 | rc = VERR_TRY_AGAIN;
|
---|
3094 | }
|
---|
3095 |
|
---|
3096 | /*
|
---|
3097 | * Put any unused usage record into the free list..
|
---|
3098 | */
|
---|
3099 | if (pUsagePre)
|
---|
3100 | {
|
---|
3101 | pUsagePre->pNext = pDevExt->pUsageFree;
|
---|
3102 | pDevExt->pUsageFree = pUsagePre;
|
---|
3103 | }
|
---|
3104 |
|
---|
3105 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
3106 |
|
---|
3107 | return rc;
|
---|
3108 | }
|
---|
3109 | SUPR0_EXPORT_SYMBOL(SUPR0ObjAddRefEx);
|
---|
3110 |
|
---|
3111 |
|
---|
3112 | /**
|
---|
3113 | * Decrement / destroy a reference counter record for an object.
|
---|
3114 | *
|
---|
3115 | * The object is uniquely identified by pfnDestructor+pvUser1+pvUser2.
|
---|
3116 | *
|
---|
3117 | * @returns IPRT status code.
|
---|
3118 | * @retval VINF_SUCCESS if not destroyed.
|
---|
3119 | * @retval VINF_OBJECT_DESTROYED if it's destroyed by this release call.
|
---|
3120 | * @retval VERR_INVALID_PARAMETER if the object isn't valid. Will assert in
|
---|
3121 | * string builds.
|
---|
3122 | *
|
---|
3123 | * @param pvObj The identifier returned by SUPR0ObjRegister().
|
---|
3124 | * @param pSession The session which is referencing the object.
|
---|
3125 | */
|
---|
3126 | SUPR0DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession)
|
---|
3127 | {
|
---|
3128 | PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
|
---|
3129 | PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
|
---|
3130 | int rc = VERR_INVALID_PARAMETER;
|
---|
3131 | PSUPDRVUSAGE pUsage;
|
---|
3132 | PSUPDRVUSAGE pUsagePrev;
|
---|
3133 |
|
---|
3134 | /*
|
---|
3135 | * Validate the input.
|
---|
3136 | */
|
---|
3137 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3138 | AssertMsgReturn(RT_VALID_PTR(pObj) && pObj->u32Magic == SUPDRVOBJ_MAGIC,
|
---|
3139 | ("Invalid pvObj=%p magic=%#x (expected %#x)\n", pvObj, pObj ? pObj->u32Magic : 0, SUPDRVOBJ_MAGIC),
|
---|
3140 | VERR_INVALID_PARAMETER);
|
---|
3141 |
|
---|
3142 | /*
|
---|
3143 | * Acquire the spinlock and look for the usage record.
|
---|
3144 | */
|
---|
3145 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
3146 |
|
---|
3147 | for (pUsagePrev = NULL, pUsage = pSession->pUsage;
|
---|
3148 | pUsage;
|
---|
3149 | pUsagePrev = pUsage, pUsage = pUsage->pNext)
|
---|
3150 | {
|
---|
3151 | /*Log2(("SUPR0ObjRelease: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext));*/
|
---|
3152 | if (pUsage->pObj == pObj)
|
---|
3153 | {
|
---|
3154 | rc = VINF_SUCCESS;
|
---|
3155 | AssertMsg(pUsage->cUsage >= 1 && pObj->cUsage >= pUsage->cUsage, ("glob %d; sess %d\n", pObj->cUsage, pUsage->cUsage));
|
---|
3156 | if (pUsage->cUsage > 1)
|
---|
3157 | {
|
---|
3158 | pObj->cUsage--;
|
---|
3159 | pUsage->cUsage--;
|
---|
3160 | }
|
---|
3161 | else
|
---|
3162 | {
|
---|
3163 | /*
|
---|
3164 | * Free the session record.
|
---|
3165 | */
|
---|
3166 | if (pUsagePrev)
|
---|
3167 | pUsagePrev->pNext = pUsage->pNext;
|
---|
3168 | else
|
---|
3169 | pSession->pUsage = pUsage->pNext;
|
---|
3170 | pUsage->pNext = pDevExt->pUsageFree;
|
---|
3171 | pDevExt->pUsageFree = pUsage;
|
---|
3172 |
|
---|
3173 | /* What about the object? */
|
---|
3174 | if (pObj->cUsage > 1)
|
---|
3175 | pObj->cUsage--;
|
---|
3176 | else
|
---|
3177 | {
|
---|
3178 | /*
|
---|
3179 | * Object is to be destroyed, unlink it.
|
---|
3180 | */
|
---|
3181 | pObj->u32Magic = SUPDRVOBJ_MAGIC_DEAD;
|
---|
3182 | rc = VINF_OBJECT_DESTROYED;
|
---|
3183 | if (pDevExt->pObjs == pObj)
|
---|
3184 | pDevExt->pObjs = pObj->pNext;
|
---|
3185 | else
|
---|
3186 | {
|
---|
3187 | PSUPDRVOBJ pObjPrev;
|
---|
3188 | for (pObjPrev = pDevExt->pObjs; pObjPrev; pObjPrev = pObjPrev->pNext)
|
---|
3189 | if (pObjPrev->pNext == pObj)
|
---|
3190 | {
|
---|
3191 | pObjPrev->pNext = pObj->pNext;
|
---|
3192 | break;
|
---|
3193 | }
|
---|
3194 | Assert(pObjPrev);
|
---|
3195 | }
|
---|
3196 | }
|
---|
3197 | }
|
---|
3198 | break;
|
---|
3199 | }
|
---|
3200 | }
|
---|
3201 |
|
---|
3202 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
3203 |
|
---|
3204 | /*
|
---|
3205 | * Call the destructor and free the object if required.
|
---|
3206 | */
|
---|
3207 | if (rc == VINF_OBJECT_DESTROYED)
|
---|
3208 | {
|
---|
3209 | Log(("SUPR0ObjRelease: destroying %p/%d (%p/%p) cpid=%RTproc pid=%RTproc dtor=%p\n",
|
---|
3210 | pObj, pObj->enmType, pObj->pvUser1, pObj->pvUser2, pObj->CreatorProcess, RTProcSelf(), pObj->pfnDestructor));
|
---|
3211 | if (pObj->pfnDestructor)
|
---|
3212 | pObj->pfnDestructor(pObj, pObj->pvUser1, pObj->pvUser2);
|
---|
3213 | RTMemFree(pObj);
|
---|
3214 | }
|
---|
3215 |
|
---|
3216 | AssertMsg(pUsage, ("pvObj=%p\n", pvObj));
|
---|
3217 | return rc;
|
---|
3218 | }
|
---|
3219 | SUPR0_EXPORT_SYMBOL(SUPR0ObjRelease);
|
---|
3220 |
|
---|
3221 |
|
---|
3222 | /**
|
---|
3223 | * Verifies that the current process can access the specified object.
|
---|
3224 | *
|
---|
3225 | * @returns The following IPRT status code:
|
---|
3226 | * @retval VINF_SUCCESS if access was granted.
|
---|
3227 | * @retval VERR_PERMISSION_DENIED if denied access.
|
---|
3228 | * @retval VERR_INVALID_PARAMETER if invalid parameter.
|
---|
3229 | *
|
---|
3230 | * @param pvObj The identifier returned by SUPR0ObjRegister().
|
---|
3231 | * @param pSession The session which wishes to access the object.
|
---|
3232 | * @param pszObjName Object string name. This is optional and depends on the object type.
|
---|
3233 | *
|
---|
3234 | * @remark The caller is responsible for making sure the object isn't removed while
|
---|
3235 | * we're inside this function. If uncertain about this, just call AddRef before calling us.
|
---|
3236 | */
|
---|
3237 | SUPR0DECL(int) SUPR0ObjVerifyAccess(void *pvObj, PSUPDRVSESSION pSession, const char *pszObjName)
|
---|
3238 | {
|
---|
3239 | PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
|
---|
3240 | int rc;
|
---|
3241 |
|
---|
3242 | /*
|
---|
3243 | * Validate the input.
|
---|
3244 | */
|
---|
3245 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3246 | AssertMsgReturn(RT_VALID_PTR(pObj) && pObj->u32Magic == SUPDRVOBJ_MAGIC,
|
---|
3247 | ("Invalid pvObj=%p magic=%#x (exepcted %#x)\n", pvObj, pObj ? pObj->u32Magic : 0, SUPDRVOBJ_MAGIC),
|
---|
3248 | VERR_INVALID_PARAMETER);
|
---|
3249 |
|
---|
3250 | /*
|
---|
3251 | * Check access. (returns true if a decision has been made.)
|
---|
3252 | */
|
---|
3253 | rc = VERR_INTERNAL_ERROR;
|
---|
3254 | if (supdrvOSObjCanAccess(pObj, pSession, pszObjName, &rc))
|
---|
3255 | return rc;
|
---|
3256 |
|
---|
3257 | /*
|
---|
3258 | * Default policy is to allow the user to access his own
|
---|
3259 | * stuff but nothing else.
|
---|
3260 | */
|
---|
3261 | if (pObj->CreatorUid == pSession->Uid)
|
---|
3262 | return VINF_SUCCESS;
|
---|
3263 | return VERR_PERMISSION_DENIED;
|
---|
3264 | }
|
---|
3265 | SUPR0_EXPORT_SYMBOL(SUPR0ObjVerifyAccess);
|
---|
3266 |
|
---|
3267 |
|
---|
3268 | /**
|
---|
3269 | * API for the VMMR0 module to get the SUPDRVSESSION::pSessionVM member.
|
---|
3270 | *
|
---|
3271 | * @returns The associated VM pointer.
|
---|
3272 | * @param pSession The session of the current thread.
|
---|
3273 | */
|
---|
3274 | SUPR0DECL(PVM) SUPR0GetSessionVM(PSUPDRVSESSION pSession)
|
---|
3275 | {
|
---|
3276 | AssertReturn(SUP_IS_SESSION_VALID(pSession), NULL);
|
---|
3277 | return pSession->pSessionVM;
|
---|
3278 | }
|
---|
3279 | SUPR0_EXPORT_SYMBOL(SUPR0GetSessionVM);
|
---|
3280 |
|
---|
3281 |
|
---|
3282 | /**
|
---|
3283 | * API for the VMMR0 module to get the SUPDRVSESSION::pSessionGVM member.
|
---|
3284 | *
|
---|
3285 | * @returns The associated GVM pointer.
|
---|
3286 | * @param pSession The session of the current thread.
|
---|
3287 | */
|
---|
3288 | SUPR0DECL(PGVM) SUPR0GetSessionGVM(PSUPDRVSESSION pSession)
|
---|
3289 | {
|
---|
3290 | AssertReturn(SUP_IS_SESSION_VALID(pSession), NULL);
|
---|
3291 | return pSession->pSessionGVM;
|
---|
3292 | }
|
---|
3293 | SUPR0_EXPORT_SYMBOL(SUPR0GetSessionGVM);
|
---|
3294 |
|
---|
3295 |
|
---|
3296 | /**
|
---|
3297 | * API for the VMMR0 module to work the SUPDRVSESSION::pSessionVM member.
|
---|
3298 | *
|
---|
3299 | * This will fail if there is already a VM associated with the session and pVM
|
---|
3300 | * isn't NULL.
|
---|
3301 | *
|
---|
3302 | * @retval VINF_SUCCESS
|
---|
3303 | * @retval VERR_ALREADY_EXISTS if there already is a VM associated with the
|
---|
3304 | * session.
|
---|
3305 | * @retval VERR_INVALID_PARAMETER if only one of the parameters are NULL or if
|
---|
3306 | * the session is invalid.
|
---|
3307 | *
|
---|
3308 | * @param pSession The session of the current thread.
|
---|
3309 | * @param pGVM The GVM to associate with the session. Pass NULL to
|
---|
3310 | * dissassociate.
|
---|
3311 | * @param pVM The VM to associate with the session. Pass NULL to
|
---|
3312 | * dissassociate.
|
---|
3313 | */
|
---|
3314 | SUPR0DECL(int) SUPR0SetSessionVM(PSUPDRVSESSION pSession, PGVM pGVM, PVM pVM)
|
---|
3315 | {
|
---|
3316 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3317 | AssertReturn((pGVM != NULL) == (pVM != NULL), VERR_INVALID_PARAMETER);
|
---|
3318 |
|
---|
3319 | RTSpinlockAcquire(pSession->pDevExt->Spinlock);
|
---|
3320 | if (pGVM)
|
---|
3321 | {
|
---|
3322 | if (!pSession->pSessionGVM)
|
---|
3323 | {
|
---|
3324 | pSession->pSessionGVM = pGVM;
|
---|
3325 | pSession->pSessionVM = pVM;
|
---|
3326 | pSession->pFastIoCtrlVM = NULL;
|
---|
3327 | }
|
---|
3328 | else
|
---|
3329 | {
|
---|
3330 | RTSpinlockRelease(pSession->pDevExt->Spinlock);
|
---|
3331 | SUPR0Printf("SUPR0SetSessionVM: Unable to associated GVM/VM %p/%p with session %p as it has %p/%p already!\n",
|
---|
3332 | pGVM, pVM, pSession, pSession->pSessionGVM, pSession->pSessionVM);
|
---|
3333 | return VERR_ALREADY_EXISTS;
|
---|
3334 | }
|
---|
3335 | }
|
---|
3336 | else
|
---|
3337 | {
|
---|
3338 | pSession->pSessionGVM = NULL;
|
---|
3339 | pSession->pSessionVM = NULL;
|
---|
3340 | pSession->pFastIoCtrlVM = NULL;
|
---|
3341 | }
|
---|
3342 | RTSpinlockRelease(pSession->pDevExt->Spinlock);
|
---|
3343 | return VINF_SUCCESS;
|
---|
3344 | }
|
---|
3345 | SUPR0_EXPORT_SYMBOL(SUPR0SetSessionVM);
|
---|
3346 |
|
---|
3347 |
|
---|
3348 | /**
|
---|
3349 | * For getting SUPDRVSESSION::Uid.
|
---|
3350 | *
|
---|
3351 | * @returns The session UID. NIL_RTUID if invalid pointer or not successfully
|
---|
3352 | * set by the host code.
|
---|
3353 | * @param pSession The session of the current thread.
|
---|
3354 | */
|
---|
3355 | SUPR0DECL(RTUID) SUPR0GetSessionUid(PSUPDRVSESSION pSession)
|
---|
3356 | {
|
---|
3357 | AssertReturn(SUP_IS_SESSION_VALID(pSession), NIL_RTUID);
|
---|
3358 | return pSession->Uid;
|
---|
3359 | }
|
---|
3360 | SUPR0_EXPORT_SYMBOL(SUPR0GetSessionUid);
|
---|
3361 |
|
---|
3362 |
|
---|
3363 | /** @copydoc RTLogDefaultInstanceEx
|
---|
3364 | * @remarks To allow overriding RTLogDefaultInstanceEx locally. */
|
---|
3365 | SUPR0DECL(struct RTLOGGER *) SUPR0DefaultLogInstanceEx(uint32_t fFlagsAndGroup)
|
---|
3366 | {
|
---|
3367 | return RTLogDefaultInstanceEx(fFlagsAndGroup);
|
---|
3368 | }
|
---|
3369 | SUPR0_EXPORT_SYMBOL(SUPR0DefaultLogInstanceEx);
|
---|
3370 |
|
---|
3371 |
|
---|
3372 | /** @copydoc RTLogGetDefaultInstanceEx
|
---|
3373 | * @remarks To allow overriding RTLogGetDefaultInstanceEx locally. */
|
---|
3374 | SUPR0DECL(struct RTLOGGER *) SUPR0GetDefaultLogInstanceEx(uint32_t fFlagsAndGroup)
|
---|
3375 | {
|
---|
3376 | return RTLogGetDefaultInstanceEx(fFlagsAndGroup);
|
---|
3377 | }
|
---|
3378 | SUPR0_EXPORT_SYMBOL(SUPR0GetDefaultLogInstanceEx);
|
---|
3379 |
|
---|
3380 |
|
---|
3381 | /** @copydoc RTLogRelGetDefaultInstanceEx
|
---|
3382 | * @remarks To allow overriding RTLogRelGetDefaultInstanceEx locally. */
|
---|
3383 | SUPR0DECL(struct RTLOGGER *) SUPR0GetDefaultLogRelInstanceEx(uint32_t fFlagsAndGroup)
|
---|
3384 | {
|
---|
3385 | return RTLogRelGetDefaultInstanceEx(fFlagsAndGroup);
|
---|
3386 | }
|
---|
3387 | SUPR0_EXPORT_SYMBOL(SUPR0GetDefaultLogRelInstanceEx);
|
---|
3388 |
|
---|
3389 |
|
---|
3390 | /**
|
---|
3391 | * Lock pages.
|
---|
3392 | *
|
---|
3393 | * @returns IPRT status code.
|
---|
3394 | * @param pSession Session to which the locked memory should be associated.
|
---|
3395 | * @param pvR3 Start of the memory range to lock.
|
---|
3396 | * This must be page aligned.
|
---|
3397 | * @param cPages Number of pages to lock.
|
---|
3398 | * @param paPages Where to put the physical addresses of locked memory.
|
---|
3399 | */
|
---|
3400 | SUPR0DECL(int) SUPR0LockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages)
|
---|
3401 | {
|
---|
3402 | int rc;
|
---|
3403 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3404 | const size_t cb = (size_t)cPages << PAGE_SHIFT;
|
---|
3405 | LogFlow(("SUPR0LockMem: pSession=%p pvR3=%p cPages=%d paPages=%p\n", pSession, (void *)pvR3, cPages, paPages));
|
---|
3406 |
|
---|
3407 | /*
|
---|
3408 | * Verify input.
|
---|
3409 | */
|
---|
3410 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3411 | AssertPtrReturn(paPages, VERR_INVALID_PARAMETER);
|
---|
3412 | if ( RT_ALIGN_R3PT(pvR3, PAGE_SIZE, RTR3PTR) != pvR3
|
---|
3413 | || !pvR3)
|
---|
3414 | {
|
---|
3415 | Log(("pvR3 (%p) must be page aligned and not NULL!\n", (void *)pvR3));
|
---|
3416 | return VERR_INVALID_PARAMETER;
|
---|
3417 | }
|
---|
3418 |
|
---|
3419 | /*
|
---|
3420 | * Let IPRT do the job.
|
---|
3421 | */
|
---|
3422 | Mem.eType = MEMREF_TYPE_LOCKED;
|
---|
3423 | rc = RTR0MemObjLockUser(&Mem.MemObj, pvR3, cb, RTMEM_PROT_READ | RTMEM_PROT_WRITE, NIL_RTR0PROCESS);
|
---|
3424 | if (RT_SUCCESS(rc))
|
---|
3425 | {
|
---|
3426 | uint32_t iPage = cPages;
|
---|
3427 | AssertMsg(RTR0MemObjAddressR3(Mem.MemObj) == pvR3, ("%p == %p\n", RTR0MemObjAddressR3(Mem.MemObj), pvR3));
|
---|
3428 | AssertMsg(RTR0MemObjSize(Mem.MemObj) == cb, ("%x == %x\n", RTR0MemObjSize(Mem.MemObj), cb));
|
---|
3429 |
|
---|
3430 | while (iPage-- > 0)
|
---|
3431 | {
|
---|
3432 | paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MemObj, iPage);
|
---|
3433 | if (RT_UNLIKELY(paPages[iPage] == NIL_RTCCPHYS))
|
---|
3434 | {
|
---|
3435 | AssertMsgFailed(("iPage=%d\n", iPage));
|
---|
3436 | rc = VERR_INTERNAL_ERROR;
|
---|
3437 | break;
|
---|
3438 | }
|
---|
3439 | }
|
---|
3440 | if (RT_SUCCESS(rc))
|
---|
3441 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3442 | if (RT_FAILURE(rc))
|
---|
3443 | {
|
---|
3444 | int rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3445 | AssertRC(rc2);
|
---|
3446 | }
|
---|
3447 | }
|
---|
3448 |
|
---|
3449 | return rc;
|
---|
3450 | }
|
---|
3451 | SUPR0_EXPORT_SYMBOL(SUPR0LockMem);
|
---|
3452 |
|
---|
3453 |
|
---|
3454 | /**
|
---|
3455 | * Unlocks the memory pointed to by pv.
|
---|
3456 | *
|
---|
3457 | * @returns IPRT status code.
|
---|
3458 | * @param pSession Session to which the memory was locked.
|
---|
3459 | * @param pvR3 Memory to unlock.
|
---|
3460 | */
|
---|
3461 | SUPR0DECL(int) SUPR0UnlockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3)
|
---|
3462 | {
|
---|
3463 | LogFlow(("SUPR0UnlockMem: pSession=%p pvR3=%p\n", pSession, (void *)pvR3));
|
---|
3464 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3465 | return supdrvMemRelease(pSession, (RTHCUINTPTR)pvR3, MEMREF_TYPE_LOCKED);
|
---|
3466 | }
|
---|
3467 | SUPR0_EXPORT_SYMBOL(SUPR0UnlockMem);
|
---|
3468 |
|
---|
3469 |
|
---|
3470 | /**
|
---|
3471 | * Allocates a chunk of page aligned memory with contiguous and fixed physical
|
---|
3472 | * backing.
|
---|
3473 | *
|
---|
3474 | * @returns IPRT status code.
|
---|
3475 | * @param pSession Session data.
|
---|
3476 | * @param cPages Number of pages to allocate.
|
---|
3477 | * @param ppvR0 Where to put the address of Ring-0 mapping the allocated memory.
|
---|
3478 | * @param ppvR3 Where to put the address of Ring-3 mapping the allocated memory.
|
---|
3479 | * @param pHCPhys Where to put the physical address of allocated memory.
|
---|
3480 | */
|
---|
3481 | SUPR0DECL(int) SUPR0ContAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS pHCPhys)
|
---|
3482 | {
|
---|
3483 | int rc;
|
---|
3484 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3485 | LogFlow(("SUPR0ContAlloc: pSession=%p cPages=%d ppvR0=%p ppvR3=%p pHCPhys=%p\n", pSession, cPages, ppvR0, ppvR3, pHCPhys));
|
---|
3486 |
|
---|
3487 | /*
|
---|
3488 | * Validate input.
|
---|
3489 | */
|
---|
3490 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3491 | if (!ppvR3 || !ppvR0 || !pHCPhys)
|
---|
3492 | {
|
---|
3493 | Log(("Null pointer. All of these should be set: pSession=%p ppvR0=%p ppvR3=%p pHCPhys=%p\n",
|
---|
3494 | pSession, ppvR0, ppvR3, pHCPhys));
|
---|
3495 | return VERR_INVALID_PARAMETER;
|
---|
3496 |
|
---|
3497 | }
|
---|
3498 | if (cPages < 1 || cPages >= 256)
|
---|
3499 | {
|
---|
3500 | Log(("Illegal request cPages=%d, must be greater than 0 and smaller than 256.\n", cPages));
|
---|
3501 | return VERR_PAGE_COUNT_OUT_OF_RANGE;
|
---|
3502 | }
|
---|
3503 |
|
---|
3504 | /*
|
---|
3505 | * Let IPRT do the job.
|
---|
3506 | */
|
---|
3507 | /** @todo Is the 4GiB requirement actually necessray? */
|
---|
3508 | rc = RTR0MemObjAllocCont(&Mem.MemObj, cPages << PAGE_SHIFT, _4G-1 /*PhysHighest*/, true /* executable R0 mapping */);
|
---|
3509 | if (RT_SUCCESS(rc))
|
---|
3510 | {
|
---|
3511 | int rc2;
|
---|
3512 | rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
|
---|
3513 | RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3514 | if (RT_SUCCESS(rc))
|
---|
3515 | {
|
---|
3516 | Mem.eType = MEMREF_TYPE_CONT;
|
---|
3517 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3518 | if (!rc)
|
---|
3519 | {
|
---|
3520 | *ppvR0 = RTR0MemObjAddress(Mem.MemObj);
|
---|
3521 | *ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
|
---|
3522 | *pHCPhys = RTR0MemObjGetPagePhysAddr(Mem.MemObj, 0);
|
---|
3523 | return 0;
|
---|
3524 | }
|
---|
3525 |
|
---|
3526 | rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
3527 | AssertRC(rc2);
|
---|
3528 | }
|
---|
3529 | rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3530 | AssertRC(rc2);
|
---|
3531 | }
|
---|
3532 |
|
---|
3533 | return rc;
|
---|
3534 | }
|
---|
3535 | SUPR0_EXPORT_SYMBOL(SUPR0ContAlloc);
|
---|
3536 |
|
---|
3537 |
|
---|
3538 | /**
|
---|
3539 | * Frees memory allocated using SUPR0ContAlloc().
|
---|
3540 | *
|
---|
3541 | * @returns IPRT status code.
|
---|
3542 | * @param pSession The session to which the memory was allocated.
|
---|
3543 | * @param uPtr Pointer to the memory (ring-3 or ring-0).
|
---|
3544 | */
|
---|
3545 | SUPR0DECL(int) SUPR0ContFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
|
---|
3546 | {
|
---|
3547 | LogFlow(("SUPR0ContFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
|
---|
3548 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3549 | return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_CONT);
|
---|
3550 | }
|
---|
3551 | SUPR0_EXPORT_SYMBOL(SUPR0ContFree);
|
---|
3552 |
|
---|
3553 |
|
---|
3554 | /**
|
---|
3555 | * Allocates a chunk of page aligned memory with fixed physical backing below 4GB.
|
---|
3556 | *
|
---|
3557 | * The memory isn't zeroed.
|
---|
3558 | *
|
---|
3559 | * @returns IPRT status code.
|
---|
3560 | * @param pSession Session data.
|
---|
3561 | * @param cPages Number of pages to allocate.
|
---|
3562 | * @param ppvR0 Where to put the address of Ring-0 mapping of the allocated memory.
|
---|
3563 | * @param ppvR3 Where to put the address of Ring-3 mapping of the allocated memory.
|
---|
3564 | * @param paPages Where to put the physical addresses of allocated memory.
|
---|
3565 | */
|
---|
3566 | SUPR0DECL(int) SUPR0LowAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS paPages)
|
---|
3567 | {
|
---|
3568 | unsigned iPage;
|
---|
3569 | int rc;
|
---|
3570 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3571 | LogFlow(("SUPR0LowAlloc: pSession=%p cPages=%d ppvR3=%p ppvR0=%p paPages=%p\n", pSession, cPages, ppvR3, ppvR0, paPages));
|
---|
3572 |
|
---|
3573 | /*
|
---|
3574 | * Validate input.
|
---|
3575 | */
|
---|
3576 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3577 | if (!ppvR3 || !ppvR0 || !paPages)
|
---|
3578 | {
|
---|
3579 | Log(("Null pointer. All of these should be set: pSession=%p ppvR3=%p ppvR0=%p paPages=%p\n",
|
---|
3580 | pSession, ppvR3, ppvR0, paPages));
|
---|
3581 | return VERR_INVALID_PARAMETER;
|
---|
3582 |
|
---|
3583 | }
|
---|
3584 | if (cPages < 1 || cPages >= 256)
|
---|
3585 | {
|
---|
3586 | Log(("Illegal request cPages=%d, must be greater than 0 and smaller than 256.\n", cPages));
|
---|
3587 | return VERR_PAGE_COUNT_OUT_OF_RANGE;
|
---|
3588 | }
|
---|
3589 |
|
---|
3590 | /*
|
---|
3591 | * Let IPRT do the work.
|
---|
3592 | */
|
---|
3593 | rc = RTR0MemObjAllocLow(&Mem.MemObj, cPages << PAGE_SHIFT, true /* executable ring-0 mapping */);
|
---|
3594 | if (RT_SUCCESS(rc))
|
---|
3595 | {
|
---|
3596 | int rc2;
|
---|
3597 | rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
|
---|
3598 | RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3599 | if (RT_SUCCESS(rc))
|
---|
3600 | {
|
---|
3601 | Mem.eType = MEMREF_TYPE_LOW;
|
---|
3602 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3603 | if (!rc)
|
---|
3604 | {
|
---|
3605 | for (iPage = 0; iPage < cPages; iPage++)
|
---|
3606 | {
|
---|
3607 | paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MemObj, iPage);
|
---|
3608 | AssertMsg(!(paPages[iPage] & (PAGE_SIZE - 1)), ("iPage=%d Phys=%RHp\n", paPages[iPage]));
|
---|
3609 | }
|
---|
3610 | *ppvR0 = RTR0MemObjAddress(Mem.MemObj);
|
---|
3611 | *ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
|
---|
3612 | return 0;
|
---|
3613 | }
|
---|
3614 |
|
---|
3615 | rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
3616 | AssertRC(rc2);
|
---|
3617 | }
|
---|
3618 |
|
---|
3619 | rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3620 | AssertRC(rc2);
|
---|
3621 | }
|
---|
3622 |
|
---|
3623 | return rc;
|
---|
3624 | }
|
---|
3625 | SUPR0_EXPORT_SYMBOL(SUPR0LowAlloc);
|
---|
3626 |
|
---|
3627 |
|
---|
3628 | /**
|
---|
3629 | * Frees memory allocated using SUPR0LowAlloc().
|
---|
3630 | *
|
---|
3631 | * @returns IPRT status code.
|
---|
3632 | * @param pSession The session to which the memory was allocated.
|
---|
3633 | * @param uPtr Pointer to the memory (ring-3 or ring-0).
|
---|
3634 | */
|
---|
3635 | SUPR0DECL(int) SUPR0LowFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
|
---|
3636 | {
|
---|
3637 | LogFlow(("SUPR0LowFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
|
---|
3638 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3639 | return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_LOW);
|
---|
3640 | }
|
---|
3641 | SUPR0_EXPORT_SYMBOL(SUPR0LowFree);
|
---|
3642 |
|
---|
3643 |
|
---|
3644 |
|
---|
3645 | /**
|
---|
3646 | * Allocates a chunk of memory with both R0 and R3 mappings.
|
---|
3647 | * The memory is fixed and it's possible to query the physical addresses using SUPR0MemGetPhys().
|
---|
3648 | *
|
---|
3649 | * @returns IPRT status code.
|
---|
3650 | * @param pSession The session to associated the allocation with.
|
---|
3651 | * @param cb Number of bytes to allocate.
|
---|
3652 | * @param ppvR0 Where to store the address of the Ring-0 mapping.
|
---|
3653 | * @param ppvR3 Where to store the address of the Ring-3 mapping.
|
---|
3654 | */
|
---|
3655 | SUPR0DECL(int) SUPR0MemAlloc(PSUPDRVSESSION pSession, uint32_t cb, PRTR0PTR ppvR0, PRTR3PTR ppvR3)
|
---|
3656 | {
|
---|
3657 | int rc;
|
---|
3658 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3659 | LogFlow(("SUPR0MemAlloc: pSession=%p cb=%d ppvR0=%p ppvR3=%p\n", pSession, cb, ppvR0, ppvR3));
|
---|
3660 |
|
---|
3661 | /*
|
---|
3662 | * Validate input.
|
---|
3663 | */
|
---|
3664 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3665 | AssertPtrReturn(ppvR0, VERR_INVALID_POINTER);
|
---|
3666 | AssertPtrReturn(ppvR3, VERR_INVALID_POINTER);
|
---|
3667 | if (cb < 1 || cb >= _4M)
|
---|
3668 | {
|
---|
3669 | Log(("Illegal request cb=%u; must be greater than 0 and smaller than 4MB.\n", cb));
|
---|
3670 | return VERR_INVALID_PARAMETER;
|
---|
3671 | }
|
---|
3672 |
|
---|
3673 | /*
|
---|
3674 | * Let IPRT do the work.
|
---|
3675 | */
|
---|
3676 | rc = RTR0MemObjAllocPage(&Mem.MemObj, cb, true /* executable ring-0 mapping */);
|
---|
3677 | if (RT_SUCCESS(rc))
|
---|
3678 | {
|
---|
3679 | int rc2;
|
---|
3680 | rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
|
---|
3681 | RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3682 | if (RT_SUCCESS(rc))
|
---|
3683 | {
|
---|
3684 | Mem.eType = MEMREF_TYPE_MEM;
|
---|
3685 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3686 | if (!rc)
|
---|
3687 | {
|
---|
3688 | *ppvR0 = RTR0MemObjAddress(Mem.MemObj);
|
---|
3689 | *ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
|
---|
3690 | return VINF_SUCCESS;
|
---|
3691 | }
|
---|
3692 |
|
---|
3693 | rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
3694 | AssertRC(rc2);
|
---|
3695 | }
|
---|
3696 |
|
---|
3697 | rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3698 | AssertRC(rc2);
|
---|
3699 | }
|
---|
3700 |
|
---|
3701 | return rc;
|
---|
3702 | }
|
---|
3703 | SUPR0_EXPORT_SYMBOL(SUPR0MemAlloc);
|
---|
3704 |
|
---|
3705 |
|
---|
3706 | /**
|
---|
3707 | * Get the physical addresses of memory allocated using SUPR0MemAlloc().
|
---|
3708 | *
|
---|
3709 | * @returns IPRT status code.
|
---|
3710 | * @param pSession The session to which the memory was allocated.
|
---|
3711 | * @param uPtr The Ring-0 or Ring-3 address returned by SUPR0MemAlloc().
|
---|
3712 | * @param paPages Where to store the physical addresses.
|
---|
3713 | */
|
---|
3714 | SUPR0DECL(int) SUPR0MemGetPhys(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, PSUPPAGE paPages) /** @todo switch this bugger to RTHCPHYS */
|
---|
3715 | {
|
---|
3716 | PSUPDRVBUNDLE pBundle;
|
---|
3717 | LogFlow(("SUPR0MemGetPhys: pSession=%p uPtr=%p paPages=%p\n", pSession, (void *)uPtr, paPages));
|
---|
3718 |
|
---|
3719 | /*
|
---|
3720 | * Validate input.
|
---|
3721 | */
|
---|
3722 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3723 | AssertPtrReturn(paPages, VERR_INVALID_POINTER);
|
---|
3724 | AssertReturn(uPtr, VERR_INVALID_PARAMETER);
|
---|
3725 |
|
---|
3726 | /*
|
---|
3727 | * Search for the address.
|
---|
3728 | */
|
---|
3729 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
3730 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
3731 | {
|
---|
3732 | if (pBundle->cUsed > 0)
|
---|
3733 | {
|
---|
3734 | unsigned i;
|
---|
3735 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
3736 | {
|
---|
3737 | if ( pBundle->aMem[i].eType == MEMREF_TYPE_MEM
|
---|
3738 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
3739 | && ( (RTHCUINTPTR)RTR0MemObjAddress(pBundle->aMem[i].MemObj) == uPtr
|
---|
3740 | || ( pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
|
---|
3741 | && RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == uPtr)
|
---|
3742 | )
|
---|
3743 | )
|
---|
3744 | {
|
---|
3745 | const size_t cPages = RTR0MemObjSize(pBundle->aMem[i].MemObj) >> PAGE_SHIFT;
|
---|
3746 | size_t iPage;
|
---|
3747 | for (iPage = 0; iPage < cPages; iPage++)
|
---|
3748 | {
|
---|
3749 | paPages[iPage].Phys = RTR0MemObjGetPagePhysAddr(pBundle->aMem[i].MemObj, iPage);
|
---|
3750 | paPages[iPage].uReserved = 0;
|
---|
3751 | }
|
---|
3752 | RTSpinlockRelease(pSession->Spinlock);
|
---|
3753 | return VINF_SUCCESS;
|
---|
3754 | }
|
---|
3755 | }
|
---|
3756 | }
|
---|
3757 | }
|
---|
3758 | RTSpinlockRelease(pSession->Spinlock);
|
---|
3759 | Log(("Failed to find %p!!!\n", (void *)uPtr));
|
---|
3760 | return VERR_INVALID_PARAMETER;
|
---|
3761 | }
|
---|
3762 | SUPR0_EXPORT_SYMBOL(SUPR0MemGetPhys);
|
---|
3763 |
|
---|
3764 |
|
---|
3765 | /**
|
---|
3766 | * Free memory allocated by SUPR0MemAlloc().
|
---|
3767 | *
|
---|
3768 | * @returns IPRT status code.
|
---|
3769 | * @param pSession The session owning the allocation.
|
---|
3770 | * @param uPtr The Ring-0 or Ring-3 address returned by SUPR0MemAlloc().
|
---|
3771 | */
|
---|
3772 | SUPR0DECL(int) SUPR0MemFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
|
---|
3773 | {
|
---|
3774 | LogFlow(("SUPR0MemFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
|
---|
3775 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3776 | return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_MEM);
|
---|
3777 | }
|
---|
3778 | SUPR0_EXPORT_SYMBOL(SUPR0MemFree);
|
---|
3779 |
|
---|
3780 |
|
---|
3781 | /**
|
---|
3782 | * Allocates a chunk of memory with a kernel or/and a user mode mapping.
|
---|
3783 | *
|
---|
3784 | * The memory is fixed and it's possible to query the physical addresses using
|
---|
3785 | * SUPR0MemGetPhys().
|
---|
3786 | *
|
---|
3787 | * @returns IPRT status code.
|
---|
3788 | * @param pSession The session to associated the allocation with.
|
---|
3789 | * @param cPages The number of pages to allocate.
|
---|
3790 | * @param fFlags Flags, reserved for the future. Must be zero.
|
---|
3791 | * @param ppvR3 Where to store the address of the Ring-3 mapping.
|
---|
3792 | * NULL if no ring-3 mapping.
|
---|
3793 | * @param ppvR0 Where to store the address of the Ring-0 mapping.
|
---|
3794 | * NULL if no ring-0 mapping.
|
---|
3795 | * @param paPages Where to store the addresses of the pages. Optional.
|
---|
3796 | */
|
---|
3797 | SUPR0DECL(int) SUPR0PageAllocEx(PSUPDRVSESSION pSession, uint32_t cPages, uint32_t fFlags, PRTR3PTR ppvR3, PRTR0PTR ppvR0, PRTHCPHYS paPages)
|
---|
3798 | {
|
---|
3799 | int rc;
|
---|
3800 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3801 | LogFlow(("SUPR0PageAlloc: pSession=%p cb=%d ppvR3=%p\n", pSession, cPages, ppvR3));
|
---|
3802 |
|
---|
3803 | /*
|
---|
3804 | * Validate input. The allowed allocation size must be at least equal to the maximum guest VRAM size.
|
---|
3805 | */
|
---|
3806 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3807 | AssertPtrNullReturn(ppvR3, VERR_INVALID_POINTER);
|
---|
3808 | AssertPtrNullReturn(ppvR0, VERR_INVALID_POINTER);
|
---|
3809 | AssertReturn(ppvR3 || ppvR0, VERR_INVALID_PARAMETER);
|
---|
3810 | AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
|
---|
3811 | if (cPages < 1 || cPages > VBOX_MAX_ALLOC_PAGE_COUNT)
|
---|
3812 | {
|
---|
3813 | Log(("SUPR0PageAlloc: Illegal request cb=%u; must be greater than 0 and smaller than %uMB (VBOX_MAX_ALLOC_PAGE_COUNT pages).\n", cPages, VBOX_MAX_ALLOC_PAGE_COUNT * (_1M / _4K)));
|
---|
3814 | return VERR_PAGE_COUNT_OUT_OF_RANGE;
|
---|
3815 | }
|
---|
3816 |
|
---|
3817 | /*
|
---|
3818 | * Let IPRT do the work.
|
---|
3819 | */
|
---|
3820 | if (ppvR0)
|
---|
3821 | rc = RTR0MemObjAllocPage(&Mem.MemObj, (size_t)cPages * PAGE_SIZE, false /*fExecutable*/);
|
---|
3822 | else
|
---|
3823 | rc = RTR0MemObjAllocPhysNC(&Mem.MemObj, (size_t)cPages * PAGE_SIZE, NIL_RTHCPHYS);
|
---|
3824 | if (RT_SUCCESS(rc))
|
---|
3825 | {
|
---|
3826 | int rc2;
|
---|
3827 | if (ppvR3)
|
---|
3828 | {
|
---|
3829 | /* Make sure memory mapped into ring-3 is zero initialized if we can: */
|
---|
3830 | if ( ppvR0
|
---|
3831 | && !RTR0MemObjWasZeroInitialized(Mem.MemObj))
|
---|
3832 | {
|
---|
3833 | void *pv = RTR0MemObjAddress(Mem.MemObj);
|
---|
3834 | Assert(pv || !ppvR0);
|
---|
3835 | if (pv)
|
---|
3836 | RT_BZERO(pv, (size_t)cPages * PAGE_SIZE);
|
---|
3837 | }
|
---|
3838 |
|
---|
3839 | rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0, RTMEM_PROT_WRITE | RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3840 | }
|
---|
3841 | else
|
---|
3842 | Mem.MapObjR3 = NIL_RTR0MEMOBJ;
|
---|
3843 | if (RT_SUCCESS(rc))
|
---|
3844 | {
|
---|
3845 | Mem.eType = MEMREF_TYPE_PAGE;
|
---|
3846 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3847 | if (!rc)
|
---|
3848 | {
|
---|
3849 | if (ppvR3)
|
---|
3850 | *ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
|
---|
3851 | if (ppvR0)
|
---|
3852 | *ppvR0 = RTR0MemObjAddress(Mem.MemObj);
|
---|
3853 | if (paPages)
|
---|
3854 | {
|
---|
3855 | uint32_t iPage = cPages;
|
---|
3856 | while (iPage-- > 0)
|
---|
3857 | {
|
---|
3858 | paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MapObjR3, iPage);
|
---|
3859 | Assert(paPages[iPage] != NIL_RTHCPHYS);
|
---|
3860 | }
|
---|
3861 | }
|
---|
3862 | return VINF_SUCCESS;
|
---|
3863 | }
|
---|
3864 |
|
---|
3865 | rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
3866 | AssertRC(rc2);
|
---|
3867 | }
|
---|
3868 |
|
---|
3869 | rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3870 | AssertRC(rc2);
|
---|
3871 | }
|
---|
3872 | return rc;
|
---|
3873 | }
|
---|
3874 | SUPR0_EXPORT_SYMBOL(SUPR0PageAllocEx);
|
---|
3875 |
|
---|
3876 |
|
---|
3877 | /**
|
---|
3878 | * Maps a chunk of memory previously allocated by SUPR0PageAllocEx into kernel
|
---|
3879 | * space.
|
---|
3880 | *
|
---|
3881 | * @returns IPRT status code.
|
---|
3882 | * @param pSession The session to associated the allocation with.
|
---|
3883 | * @param pvR3 The ring-3 address returned by SUPR0PageAllocEx.
|
---|
3884 | * @param offSub Where to start mapping. Must be page aligned.
|
---|
3885 | * @param cbSub How much to map. Must be page aligned.
|
---|
3886 | * @param fFlags Flags, MBZ.
|
---|
3887 | * @param ppvR0 Where to return the address of the ring-0 mapping on
|
---|
3888 | * success.
|
---|
3889 | */
|
---|
3890 | SUPR0DECL(int) SUPR0PageMapKernel(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t offSub, uint32_t cbSub,
|
---|
3891 | uint32_t fFlags, PRTR0PTR ppvR0)
|
---|
3892 | {
|
---|
3893 | int rc;
|
---|
3894 | PSUPDRVBUNDLE pBundle;
|
---|
3895 | RTR0MEMOBJ hMemObj = NIL_RTR0MEMOBJ;
|
---|
3896 | LogFlow(("SUPR0PageMapKernel: pSession=%p pvR3=%p offSub=%#x cbSub=%#x\n", pSession, pvR3, offSub, cbSub));
|
---|
3897 |
|
---|
3898 | /*
|
---|
3899 | * Validate input. The allowed allocation size must be at least equal to the maximum guest VRAM size.
|
---|
3900 | */
|
---|
3901 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3902 | AssertPtrNullReturn(ppvR0, VERR_INVALID_POINTER);
|
---|
3903 | AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
|
---|
3904 | AssertReturn(!(offSub & PAGE_OFFSET_MASK), VERR_INVALID_PARAMETER);
|
---|
3905 | AssertReturn(!(cbSub & PAGE_OFFSET_MASK), VERR_INVALID_PARAMETER);
|
---|
3906 | AssertReturn(cbSub, VERR_INVALID_PARAMETER);
|
---|
3907 |
|
---|
3908 | /*
|
---|
3909 | * Find the memory object.
|
---|
3910 | */
|
---|
3911 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
3912 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
3913 | {
|
---|
3914 | if (pBundle->cUsed > 0)
|
---|
3915 | {
|
---|
3916 | unsigned i;
|
---|
3917 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
3918 | {
|
---|
3919 | if ( ( pBundle->aMem[i].eType == MEMREF_TYPE_PAGE
|
---|
3920 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
3921 | && pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
|
---|
3922 | && RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == pvR3)
|
---|
3923 | || ( pBundle->aMem[i].eType == MEMREF_TYPE_LOCKED
|
---|
3924 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
3925 | && pBundle->aMem[i].MapObjR3 == NIL_RTR0MEMOBJ
|
---|
3926 | && RTR0MemObjAddressR3(pBundle->aMem[i].MemObj) == pvR3))
|
---|
3927 | {
|
---|
3928 | hMemObj = pBundle->aMem[i].MemObj;
|
---|
3929 | break;
|
---|
3930 | }
|
---|
3931 | }
|
---|
3932 | }
|
---|
3933 | }
|
---|
3934 | RTSpinlockRelease(pSession->Spinlock);
|
---|
3935 |
|
---|
3936 | rc = VERR_INVALID_PARAMETER;
|
---|
3937 | if (hMemObj != NIL_RTR0MEMOBJ)
|
---|
3938 | {
|
---|
3939 | /*
|
---|
3940 | * Do some further input validations before calling IPRT.
|
---|
3941 | * (Cleanup is done indirectly by telling RTR0MemObjFree to include mappings.)
|
---|
3942 | */
|
---|
3943 | size_t cbMemObj = RTR0MemObjSize(hMemObj);
|
---|
3944 | if ( offSub < cbMemObj
|
---|
3945 | && cbSub <= cbMemObj
|
---|
3946 | && offSub + cbSub <= cbMemObj)
|
---|
3947 | {
|
---|
3948 | RTR0MEMOBJ hMapObj;
|
---|
3949 | rc = RTR0MemObjMapKernelEx(&hMapObj, hMemObj, (void *)-1, 0,
|
---|
3950 | RTMEM_PROT_READ | RTMEM_PROT_WRITE, offSub, cbSub);
|
---|
3951 | if (RT_SUCCESS(rc))
|
---|
3952 | *ppvR0 = RTR0MemObjAddress(hMapObj);
|
---|
3953 | }
|
---|
3954 | else
|
---|
3955 | SUPR0Printf("SUPR0PageMapKernel: cbMemObj=%#x offSub=%#x cbSub=%#x\n", cbMemObj, offSub, cbSub);
|
---|
3956 |
|
---|
3957 | }
|
---|
3958 | return rc;
|
---|
3959 | }
|
---|
3960 | SUPR0_EXPORT_SYMBOL(SUPR0PageMapKernel);
|
---|
3961 |
|
---|
3962 |
|
---|
3963 | /**
|
---|
3964 | * Changes the page level protection of one or more pages previously allocated
|
---|
3965 | * by SUPR0PageAllocEx.
|
---|
3966 | *
|
---|
3967 | * @returns IPRT status code.
|
---|
3968 | * @param pSession The session to associated the allocation with.
|
---|
3969 | * @param pvR3 The ring-3 address returned by SUPR0PageAllocEx.
|
---|
3970 | * NIL_RTR3PTR if the ring-3 mapping should be unaffected.
|
---|
3971 | * @param pvR0 The ring-0 address returned by SUPR0PageAllocEx.
|
---|
3972 | * NIL_RTR0PTR if the ring-0 mapping should be unaffected.
|
---|
3973 | * @param offSub Where to start changing. Must be page aligned.
|
---|
3974 | * @param cbSub How much to change. Must be page aligned.
|
---|
3975 | * @param fProt The new page level protection, see RTMEM_PROT_*.
|
---|
3976 | */
|
---|
3977 | SUPR0DECL(int) SUPR0PageProtect(PSUPDRVSESSION pSession, RTR3PTR pvR3, RTR0PTR pvR0, uint32_t offSub, uint32_t cbSub, uint32_t fProt)
|
---|
3978 | {
|
---|
3979 | int rc;
|
---|
3980 | PSUPDRVBUNDLE pBundle;
|
---|
3981 | RTR0MEMOBJ hMemObjR0 = NIL_RTR0MEMOBJ;
|
---|
3982 | RTR0MEMOBJ hMemObjR3 = NIL_RTR0MEMOBJ;
|
---|
3983 | LogFlow(("SUPR0PageProtect: pSession=%p pvR3=%p pvR0=%p offSub=%#x cbSub=%#x fProt-%#x\n", pSession, pvR3, pvR0, offSub, cbSub, fProt));
|
---|
3984 |
|
---|
3985 | /*
|
---|
3986 | * Validate input. The allowed allocation size must be at least equal to the maximum guest VRAM size.
|
---|
3987 | */
|
---|
3988 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3989 | AssertReturn(!(fProt & ~(RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC | RTMEM_PROT_NONE)), VERR_INVALID_PARAMETER);
|
---|
3990 | AssertReturn(!(offSub & PAGE_OFFSET_MASK), VERR_INVALID_PARAMETER);
|
---|
3991 | AssertReturn(!(cbSub & PAGE_OFFSET_MASK), VERR_INVALID_PARAMETER);
|
---|
3992 | AssertReturn(cbSub, VERR_INVALID_PARAMETER);
|
---|
3993 |
|
---|
3994 | /*
|
---|
3995 | * Find the memory object.
|
---|
3996 | */
|
---|
3997 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
3998 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
3999 | {
|
---|
4000 | if (pBundle->cUsed > 0)
|
---|
4001 | {
|
---|
4002 | unsigned i;
|
---|
4003 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
4004 | {
|
---|
4005 | if ( pBundle->aMem[i].eType == MEMREF_TYPE_PAGE
|
---|
4006 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
4007 | && ( pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
|
---|
4008 | || pvR3 == NIL_RTR3PTR)
|
---|
4009 | && ( pvR0 == NIL_RTR0PTR
|
---|
4010 | || RTR0MemObjAddress(pBundle->aMem[i].MemObj) == pvR0)
|
---|
4011 | && ( pvR3 == NIL_RTR3PTR
|
---|
4012 | || RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == pvR3))
|
---|
4013 | {
|
---|
4014 | if (pvR0 != NIL_RTR0PTR)
|
---|
4015 | hMemObjR0 = pBundle->aMem[i].MemObj;
|
---|
4016 | if (pvR3 != NIL_RTR3PTR)
|
---|
4017 | hMemObjR3 = pBundle->aMem[i].MapObjR3;
|
---|
4018 | break;
|
---|
4019 | }
|
---|
4020 | }
|
---|
4021 | }
|
---|
4022 | }
|
---|
4023 | RTSpinlockRelease(pSession->Spinlock);
|
---|
4024 |
|
---|
4025 | rc = VERR_INVALID_PARAMETER;
|
---|
4026 | if ( hMemObjR0 != NIL_RTR0MEMOBJ
|
---|
4027 | || hMemObjR3 != NIL_RTR0MEMOBJ)
|
---|
4028 | {
|
---|
4029 | /*
|
---|
4030 | * Do some further input validations before calling IPRT.
|
---|
4031 | */
|
---|
4032 | size_t cbMemObj = hMemObjR0 != NIL_RTR0PTR ? RTR0MemObjSize(hMemObjR0) : RTR0MemObjSize(hMemObjR3);
|
---|
4033 | if ( offSub < cbMemObj
|
---|
4034 | && cbSub <= cbMemObj
|
---|
4035 | && offSub + cbSub <= cbMemObj)
|
---|
4036 | {
|
---|
4037 | rc = VINF_SUCCESS;
|
---|
4038 | if (hMemObjR3 != NIL_RTR0PTR)
|
---|
4039 | rc = RTR0MemObjProtect(hMemObjR3, offSub, cbSub, fProt);
|
---|
4040 | if (hMemObjR0 != NIL_RTR0PTR && RT_SUCCESS(rc))
|
---|
4041 | rc = RTR0MemObjProtect(hMemObjR0, offSub, cbSub, fProt);
|
---|
4042 | }
|
---|
4043 | else
|
---|
4044 | SUPR0Printf("SUPR0PageMapKernel: cbMemObj=%#x offSub=%#x cbSub=%#x\n", cbMemObj, offSub, cbSub);
|
---|
4045 |
|
---|
4046 | }
|
---|
4047 | return rc;
|
---|
4048 |
|
---|
4049 | }
|
---|
4050 | SUPR0_EXPORT_SYMBOL(SUPR0PageProtect);
|
---|
4051 |
|
---|
4052 |
|
---|
4053 | /**
|
---|
4054 | * Free memory allocated by SUPR0PageAlloc() and SUPR0PageAllocEx().
|
---|
4055 | *
|
---|
4056 | * @returns IPRT status code.
|
---|
4057 | * @param pSession The session owning the allocation.
|
---|
4058 | * @param pvR3 The Ring-3 address returned by SUPR0PageAlloc() or
|
---|
4059 | * SUPR0PageAllocEx().
|
---|
4060 | */
|
---|
4061 | SUPR0DECL(int) SUPR0PageFree(PSUPDRVSESSION pSession, RTR3PTR pvR3)
|
---|
4062 | {
|
---|
4063 | LogFlow(("SUPR0PageFree: pSession=%p pvR3=%p\n", pSession, (void *)pvR3));
|
---|
4064 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4065 | return supdrvMemRelease(pSession, (RTHCUINTPTR)pvR3, MEMREF_TYPE_PAGE);
|
---|
4066 | }
|
---|
4067 | SUPR0_EXPORT_SYMBOL(SUPR0PageFree);
|
---|
4068 |
|
---|
4069 |
|
---|
4070 | /**
|
---|
4071 | * Reports a bad context, currenctly that means EFLAGS.AC is 0 instead of 1.
|
---|
4072 | *
|
---|
4073 | * @param pDevExt The device extension.
|
---|
4074 | * @param pszFile The source file where the caller detected the bad
|
---|
4075 | * context.
|
---|
4076 | * @param uLine The line number in @a pszFile.
|
---|
4077 | * @param pszExtra Optional additional message to give further hints.
|
---|
4078 | */
|
---|
4079 | void VBOXCALL supdrvBadContext(PSUPDRVDEVEXT pDevExt, const char *pszFile, uint32_t uLine, const char *pszExtra)
|
---|
4080 | {
|
---|
4081 | uint32_t cCalls;
|
---|
4082 |
|
---|
4083 | /*
|
---|
4084 | * Shorten the filename before displaying the message.
|
---|
4085 | */
|
---|
4086 | for (;;)
|
---|
4087 | {
|
---|
4088 | const char *pszTmp = strchr(pszFile, '/');
|
---|
4089 | if (!pszTmp)
|
---|
4090 | pszTmp = strchr(pszFile, '\\');
|
---|
4091 | if (!pszTmp)
|
---|
4092 | break;
|
---|
4093 | pszFile = pszTmp + 1;
|
---|
4094 | }
|
---|
4095 | if (RT_VALID_PTR(pszExtra) && *pszExtra)
|
---|
4096 | SUPR0Printf("vboxdrv: Bad CPU context error at line %u in %s: %s\n", uLine, pszFile, pszExtra);
|
---|
4097 | else
|
---|
4098 | SUPR0Printf("vboxdrv: Bad CPU context error at line %u in %s!\n", uLine, pszFile);
|
---|
4099 |
|
---|
4100 | /*
|
---|
4101 | * Record the incident so that we stand a chance of blocking I/O controls
|
---|
4102 | * before panicing the system.
|
---|
4103 | */
|
---|
4104 | cCalls = ASMAtomicIncU32(&pDevExt->cBadContextCalls);
|
---|
4105 | if (cCalls > UINT32_MAX - _1K)
|
---|
4106 | ASMAtomicWriteU32(&pDevExt->cBadContextCalls, UINT32_MAX - _1K);
|
---|
4107 | }
|
---|
4108 |
|
---|
4109 |
|
---|
4110 | /**
|
---|
4111 | * Reports a bad context, currenctly that means EFLAGS.AC is 0 instead of 1.
|
---|
4112 | *
|
---|
4113 | * @param pSession The session of the caller.
|
---|
4114 | * @param pszFile The source file where the caller detected the bad
|
---|
4115 | * context.
|
---|
4116 | * @param uLine The line number in @a pszFile.
|
---|
4117 | * @param pszExtra Optional additional message to give further hints.
|
---|
4118 | */
|
---|
4119 | SUPR0DECL(void) SUPR0BadContext(PSUPDRVSESSION pSession, const char *pszFile, uint32_t uLine, const char *pszExtra)
|
---|
4120 | {
|
---|
4121 | PSUPDRVDEVEXT pDevExt;
|
---|
4122 |
|
---|
4123 | AssertReturnVoid(SUP_IS_SESSION_VALID(pSession));
|
---|
4124 | pDevExt = pSession->pDevExt;
|
---|
4125 |
|
---|
4126 | supdrvBadContext(pDevExt, pszFile, uLine, pszExtra);
|
---|
4127 | }
|
---|
4128 | SUPR0_EXPORT_SYMBOL(SUPR0BadContext);
|
---|
4129 |
|
---|
4130 |
|
---|
4131 | /**
|
---|
4132 | * Gets the paging mode of the current CPU.
|
---|
4133 | *
|
---|
4134 | * @returns Paging mode, SUPPAGEINGMODE_INVALID on error.
|
---|
4135 | */
|
---|
4136 | SUPR0DECL(SUPPAGINGMODE) SUPR0GetPagingMode(void)
|
---|
4137 | {
|
---|
4138 | SUPPAGINGMODE enmMode;
|
---|
4139 |
|
---|
4140 | RTR0UINTREG cr0 = ASMGetCR0();
|
---|
4141 | if ((cr0 & (X86_CR0_PG | X86_CR0_PE)) != (X86_CR0_PG | X86_CR0_PE))
|
---|
4142 | enmMode = SUPPAGINGMODE_INVALID;
|
---|
4143 | else
|
---|
4144 | {
|
---|
4145 | RTR0UINTREG cr4 = ASMGetCR4();
|
---|
4146 | uint32_t fNXEPlusLMA = 0;
|
---|
4147 | if (cr4 & X86_CR4_PAE)
|
---|
4148 | {
|
---|
4149 | uint32_t fExtFeatures = ASMCpuId_EDX(0x80000001);
|
---|
4150 | if (fExtFeatures & (X86_CPUID_EXT_FEATURE_EDX_NX | X86_CPUID_EXT_FEATURE_EDX_LONG_MODE))
|
---|
4151 | {
|
---|
4152 | uint64_t efer = ASMRdMsr(MSR_K6_EFER);
|
---|
4153 | if ((fExtFeatures & X86_CPUID_EXT_FEATURE_EDX_NX) && (efer & MSR_K6_EFER_NXE))
|
---|
4154 | fNXEPlusLMA |= RT_BIT(0);
|
---|
4155 | if ((fExtFeatures & X86_CPUID_EXT_FEATURE_EDX_LONG_MODE) && (efer & MSR_K6_EFER_LMA))
|
---|
4156 | fNXEPlusLMA |= RT_BIT(1);
|
---|
4157 | }
|
---|
4158 | }
|
---|
4159 |
|
---|
4160 | switch ((cr4 & (X86_CR4_PAE | X86_CR4_PGE)) | fNXEPlusLMA)
|
---|
4161 | {
|
---|
4162 | case 0:
|
---|
4163 | enmMode = SUPPAGINGMODE_32_BIT;
|
---|
4164 | break;
|
---|
4165 |
|
---|
4166 | case X86_CR4_PGE:
|
---|
4167 | enmMode = SUPPAGINGMODE_32_BIT_GLOBAL;
|
---|
4168 | break;
|
---|
4169 |
|
---|
4170 | case X86_CR4_PAE:
|
---|
4171 | enmMode = SUPPAGINGMODE_PAE;
|
---|
4172 | break;
|
---|
4173 |
|
---|
4174 | case X86_CR4_PAE | RT_BIT(0):
|
---|
4175 | enmMode = SUPPAGINGMODE_PAE_NX;
|
---|
4176 | break;
|
---|
4177 |
|
---|
4178 | case X86_CR4_PAE | X86_CR4_PGE:
|
---|
4179 | enmMode = SUPPAGINGMODE_PAE_GLOBAL;
|
---|
4180 | break;
|
---|
4181 |
|
---|
4182 | case X86_CR4_PAE | X86_CR4_PGE | RT_BIT(0):
|
---|
4183 | enmMode = SUPPAGINGMODE_PAE_GLOBAL;
|
---|
4184 | break;
|
---|
4185 |
|
---|
4186 | case RT_BIT(1) | X86_CR4_PAE:
|
---|
4187 | enmMode = SUPPAGINGMODE_AMD64;
|
---|
4188 | break;
|
---|
4189 |
|
---|
4190 | case RT_BIT(1) | X86_CR4_PAE | RT_BIT(0):
|
---|
4191 | enmMode = SUPPAGINGMODE_AMD64_NX;
|
---|
4192 | break;
|
---|
4193 |
|
---|
4194 | case RT_BIT(1) | X86_CR4_PAE | X86_CR4_PGE:
|
---|
4195 | enmMode = SUPPAGINGMODE_AMD64_GLOBAL;
|
---|
4196 | break;
|
---|
4197 |
|
---|
4198 | case RT_BIT(1) | X86_CR4_PAE | X86_CR4_PGE | RT_BIT(0):
|
---|
4199 | enmMode = SUPPAGINGMODE_AMD64_GLOBAL_NX;
|
---|
4200 | break;
|
---|
4201 |
|
---|
4202 | default:
|
---|
4203 | AssertMsgFailed(("Cannot happen! cr4=%#x fNXEPlusLMA=%d\n", cr4, fNXEPlusLMA));
|
---|
4204 | enmMode = SUPPAGINGMODE_INVALID;
|
---|
4205 | break;
|
---|
4206 | }
|
---|
4207 | }
|
---|
4208 | return enmMode;
|
---|
4209 | }
|
---|
4210 | SUPR0_EXPORT_SYMBOL(SUPR0GetPagingMode);
|
---|
4211 |
|
---|
4212 |
|
---|
4213 | /**
|
---|
4214 | * Change CR4 and take care of the kernel CR4 shadow if applicable.
|
---|
4215 | *
|
---|
4216 | * CR4 shadow handling is required for Linux >= 4.0. Calling this function
|
---|
4217 | * instead of ASMSetCR4() is only necessary for semi-permanent CR4 changes
|
---|
4218 | * for code with interrupts enabled.
|
---|
4219 | *
|
---|
4220 | * @returns the old CR4 value.
|
---|
4221 | *
|
---|
4222 | * @param fOrMask bits to be set in CR4.
|
---|
4223 | * @param fAndMask bits to be cleard in CR4.
|
---|
4224 | *
|
---|
4225 | * @remarks Must be called with preemption/interrupts disabled.
|
---|
4226 | */
|
---|
4227 | SUPR0DECL(RTCCUINTREG) SUPR0ChangeCR4(RTCCUINTREG fOrMask, RTCCUINTREG fAndMask)
|
---|
4228 | {
|
---|
4229 | #ifdef RT_OS_LINUX
|
---|
4230 | return supdrvOSChangeCR4(fOrMask, fAndMask);
|
---|
4231 | #else
|
---|
4232 | RTCCUINTREG uOld = ASMGetCR4();
|
---|
4233 | RTCCUINTREG uNew = (uOld & fAndMask) | fOrMask;
|
---|
4234 | if (uNew != uOld)
|
---|
4235 | ASMSetCR4(uNew);
|
---|
4236 | return uOld;
|
---|
4237 | #endif
|
---|
4238 | }
|
---|
4239 | SUPR0_EXPORT_SYMBOL(SUPR0ChangeCR4);
|
---|
4240 |
|
---|
4241 |
|
---|
4242 | /**
|
---|
4243 | * Enables or disabled hardware virtualization extensions using native OS APIs.
|
---|
4244 | *
|
---|
4245 | * @returns VBox status code.
|
---|
4246 | * @retval VINF_SUCCESS on success.
|
---|
4247 | * @retval VERR_NOT_SUPPORTED if not supported by the native OS.
|
---|
4248 | *
|
---|
4249 | * @param fEnable Whether to enable or disable.
|
---|
4250 | */
|
---|
4251 | SUPR0DECL(int) SUPR0EnableVTx(bool fEnable)
|
---|
4252 | {
|
---|
4253 | #ifdef RT_OS_DARWIN
|
---|
4254 | return supdrvOSEnableVTx(fEnable);
|
---|
4255 | #else
|
---|
4256 | RT_NOREF1(fEnable);
|
---|
4257 | return VERR_NOT_SUPPORTED;
|
---|
4258 | #endif
|
---|
4259 | }
|
---|
4260 | SUPR0_EXPORT_SYMBOL(SUPR0EnableVTx);
|
---|
4261 |
|
---|
4262 |
|
---|
4263 | /**
|
---|
4264 | * Suspends hardware virtualization extensions using the native OS API.
|
---|
4265 | *
|
---|
4266 | * This is called prior to entering raw-mode context.
|
---|
4267 | *
|
---|
4268 | * @returns @c true if suspended, @c false if not.
|
---|
4269 | */
|
---|
4270 | SUPR0DECL(bool) SUPR0SuspendVTxOnCpu(void)
|
---|
4271 | {
|
---|
4272 | #ifdef RT_OS_DARWIN
|
---|
4273 | return supdrvOSSuspendVTxOnCpu();
|
---|
4274 | #else
|
---|
4275 | return false;
|
---|
4276 | #endif
|
---|
4277 | }
|
---|
4278 | SUPR0_EXPORT_SYMBOL(SUPR0SuspendVTxOnCpu);
|
---|
4279 |
|
---|
4280 |
|
---|
4281 | /**
|
---|
4282 | * Resumes hardware virtualization extensions using the native OS API.
|
---|
4283 | *
|
---|
4284 | * This is called after to entering raw-mode context.
|
---|
4285 | *
|
---|
4286 | * @param fSuspended The return value of SUPR0SuspendVTxOnCpu.
|
---|
4287 | */
|
---|
4288 | SUPR0DECL(void) SUPR0ResumeVTxOnCpu(bool fSuspended)
|
---|
4289 | {
|
---|
4290 | #ifdef RT_OS_DARWIN
|
---|
4291 | supdrvOSResumeVTxOnCpu(fSuspended);
|
---|
4292 | #else
|
---|
4293 | RT_NOREF1(fSuspended);
|
---|
4294 | Assert(!fSuspended);
|
---|
4295 | #endif
|
---|
4296 | }
|
---|
4297 | SUPR0_EXPORT_SYMBOL(SUPR0ResumeVTxOnCpu);
|
---|
4298 |
|
---|
4299 |
|
---|
4300 | SUPR0DECL(int) SUPR0GetCurrentGdtRw(RTHCUINTPTR *pGdtRw)
|
---|
4301 | {
|
---|
4302 | #ifdef RT_OS_LINUX
|
---|
4303 | return supdrvOSGetCurrentGdtRw(pGdtRw);
|
---|
4304 | #else
|
---|
4305 | NOREF(pGdtRw);
|
---|
4306 | return VERR_NOT_IMPLEMENTED;
|
---|
4307 | #endif
|
---|
4308 | }
|
---|
4309 | SUPR0_EXPORT_SYMBOL(SUPR0GetCurrentGdtRw);
|
---|
4310 |
|
---|
4311 |
|
---|
4312 | /**
|
---|
4313 | * Gets AMD-V and VT-x support for the calling CPU.
|
---|
4314 | *
|
---|
4315 | * @returns VBox status code.
|
---|
4316 | * @param pfCaps Where to store whether VT-x (SUPVTCAPS_VT_X) or AMD-V
|
---|
4317 | * (SUPVTCAPS_AMD_V) is supported.
|
---|
4318 | */
|
---|
4319 | SUPR0DECL(int) SUPR0GetVTSupport(uint32_t *pfCaps)
|
---|
4320 | {
|
---|
4321 | Assert(pfCaps);
|
---|
4322 | *pfCaps = 0;
|
---|
4323 |
|
---|
4324 | /* Check if the CPU even supports CPUID (extremely ancient CPUs). */
|
---|
4325 | if (ASMHasCpuId())
|
---|
4326 | {
|
---|
4327 | /* Check the range of standard CPUID leafs. */
|
---|
4328 | uint32_t uMaxLeaf, uVendorEbx, uVendorEcx, uVendorEdx;
|
---|
4329 | ASMCpuId(0, &uMaxLeaf, &uVendorEbx, &uVendorEcx, &uVendorEdx);
|
---|
4330 | if (RTX86IsValidStdRange(uMaxLeaf))
|
---|
4331 | {
|
---|
4332 | /* Query the standard CPUID leaf. */
|
---|
4333 | uint32_t fFeatEcx, fFeatEdx, uDummy;
|
---|
4334 | ASMCpuId(1, &uDummy, &uDummy, &fFeatEcx, &fFeatEdx);
|
---|
4335 |
|
---|
4336 | /* Check if the vendor is Intel (or compatible). */
|
---|
4337 | if ( RTX86IsIntelCpu(uVendorEbx, uVendorEcx, uVendorEdx)
|
---|
4338 | || RTX86IsViaCentaurCpu(uVendorEbx, uVendorEcx, uVendorEdx)
|
---|
4339 | || RTX86IsShanghaiCpu(uVendorEbx, uVendorEcx, uVendorEdx))
|
---|
4340 | {
|
---|
4341 | /* Check VT-x support. In addition, VirtualBox requires MSR and FXSAVE/FXRSTOR to function. */
|
---|
4342 | if ( (fFeatEcx & X86_CPUID_FEATURE_ECX_VMX)
|
---|
4343 | && (fFeatEdx & X86_CPUID_FEATURE_EDX_MSR)
|
---|
4344 | && (fFeatEdx & X86_CPUID_FEATURE_EDX_FXSR))
|
---|
4345 | {
|
---|
4346 | *pfCaps = SUPVTCAPS_VT_X;
|
---|
4347 | return VINF_SUCCESS;
|
---|
4348 | }
|
---|
4349 | return VERR_VMX_NO_VMX;
|
---|
4350 | }
|
---|
4351 |
|
---|
4352 | /* Check if the vendor is AMD (or compatible). */
|
---|
4353 | if ( RTX86IsAmdCpu(uVendorEbx, uVendorEcx, uVendorEdx)
|
---|
4354 | || RTX86IsHygonCpu(uVendorEbx, uVendorEcx, uVendorEdx))
|
---|
4355 | {
|
---|
4356 | uint32_t fExtFeatEcx, uExtMaxId;
|
---|
4357 | ASMCpuId(0x80000000, &uExtMaxId, &uDummy, &uDummy, &uDummy);
|
---|
4358 | ASMCpuId(0x80000001, &uDummy, &uDummy, &fExtFeatEcx, &uDummy);
|
---|
4359 |
|
---|
4360 | /* Check AMD-V support. In addition, VirtualBox requires MSR and FXSAVE/FXRSTOR to function. */
|
---|
4361 | if ( RTX86IsValidExtRange(uExtMaxId)
|
---|
4362 | && uExtMaxId >= 0x8000000a
|
---|
4363 | && (fExtFeatEcx & X86_CPUID_AMD_FEATURE_ECX_SVM)
|
---|
4364 | && (fFeatEdx & X86_CPUID_FEATURE_EDX_MSR)
|
---|
4365 | && (fFeatEdx & X86_CPUID_FEATURE_EDX_FXSR))
|
---|
4366 | {
|
---|
4367 | *pfCaps = SUPVTCAPS_AMD_V;
|
---|
4368 | return VINF_SUCCESS;
|
---|
4369 | }
|
---|
4370 | return VERR_SVM_NO_SVM;
|
---|
4371 | }
|
---|
4372 | }
|
---|
4373 | }
|
---|
4374 | return VERR_UNSUPPORTED_CPU;
|
---|
4375 | }
|
---|
4376 | SUPR0_EXPORT_SYMBOL(SUPR0GetVTSupport);
|
---|
4377 |
|
---|
4378 |
|
---|
4379 | /**
|
---|
4380 | * Checks if Intel VT-x feature is usable on this CPU.
|
---|
4381 | *
|
---|
4382 | * @returns VBox status code.
|
---|
4383 | * @param pfIsSmxModeAmbiguous Where to return whether the SMX mode causes
|
---|
4384 | * ambiguity that makes us unsure whether we
|
---|
4385 | * really can use VT-x or not.
|
---|
4386 | *
|
---|
4387 | * @remarks Must be called with preemption disabled.
|
---|
4388 | * The caller is also expected to check that the CPU is an Intel (or
|
---|
4389 | * VIA/Shanghai) CPU -and- that it supports VT-x. Otherwise, this
|
---|
4390 | * function might throw a \#GP fault as it tries to read/write MSRs
|
---|
4391 | * that may not be present!
|
---|
4392 | */
|
---|
4393 | SUPR0DECL(int) SUPR0GetVmxUsability(bool *pfIsSmxModeAmbiguous)
|
---|
4394 | {
|
---|
4395 | uint64_t fFeatMsr;
|
---|
4396 | bool fMaybeSmxMode;
|
---|
4397 | bool fMsrLocked;
|
---|
4398 | bool fSmxVmxAllowed;
|
---|
4399 | bool fVmxAllowed;
|
---|
4400 | bool fIsSmxModeAmbiguous;
|
---|
4401 | int rc;
|
---|
4402 |
|
---|
4403 | Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
|
---|
4404 |
|
---|
4405 | fFeatMsr = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
|
---|
4406 | fMaybeSmxMode = RT_BOOL(ASMGetCR4() & X86_CR4_SMXE);
|
---|
4407 | fMsrLocked = RT_BOOL(fFeatMsr & MSR_IA32_FEATURE_CONTROL_LOCK);
|
---|
4408 | fSmxVmxAllowed = RT_BOOL(fFeatMsr & MSR_IA32_FEATURE_CONTROL_SMX_VMXON);
|
---|
4409 | fVmxAllowed = RT_BOOL(fFeatMsr & MSR_IA32_FEATURE_CONTROL_VMXON);
|
---|
4410 | fIsSmxModeAmbiguous = false;
|
---|
4411 | rc = VERR_INTERNAL_ERROR_5;
|
---|
4412 |
|
---|
4413 | /* Check if the LOCK bit is set but excludes the required VMXON bit. */
|
---|
4414 | if (fMsrLocked)
|
---|
4415 | {
|
---|
4416 | if (fVmxAllowed && fSmxVmxAllowed)
|
---|
4417 | rc = VINF_SUCCESS;
|
---|
4418 | else if (!fVmxAllowed && !fSmxVmxAllowed)
|
---|
4419 | rc = VERR_VMX_MSR_ALL_VMX_DISABLED;
|
---|
4420 | else if (!fMaybeSmxMode)
|
---|
4421 | {
|
---|
4422 | if (fVmxAllowed)
|
---|
4423 | rc = VINF_SUCCESS;
|
---|
4424 | else
|
---|
4425 | rc = VERR_VMX_MSR_VMX_DISABLED;
|
---|
4426 | }
|
---|
4427 | else
|
---|
4428 | {
|
---|
4429 | /*
|
---|
4430 | * CR4.SMXE is set but this doesn't mean the CPU is necessarily in SMX mode. We shall assume
|
---|
4431 | * that it is -not- and that it is a stupid BIOS/OS setting CR4.SMXE for no good reason.
|
---|
4432 | * See @bugref{6873}.
|
---|
4433 | */
|
---|
4434 | Assert(fMaybeSmxMode == true);
|
---|
4435 | fIsSmxModeAmbiguous = true;
|
---|
4436 | rc = VINF_SUCCESS;
|
---|
4437 | }
|
---|
4438 | }
|
---|
4439 | else
|
---|
4440 | {
|
---|
4441 | /*
|
---|
4442 | * MSR is not yet locked; we can change it ourselves here. Once the lock bit is set,
|
---|
4443 | * this MSR can no longer be modified.
|
---|
4444 | *
|
---|
4445 | * Set both the VMX and SMX_VMX bits (if supported) as we can't determine SMX mode
|
---|
4446 | * accurately. See @bugref{6873}.
|
---|
4447 | *
|
---|
4448 | * We need to check for SMX hardware support here, before writing the MSR as
|
---|
4449 | * otherwise we will #GP fault on CPUs that do not support it. Callers do not check
|
---|
4450 | * for it.
|
---|
4451 | */
|
---|
4452 | uint32_t fFeaturesECX, uDummy;
|
---|
4453 | #ifdef VBOX_STRICT
|
---|
4454 | /* Callers should have verified these at some point. */
|
---|
4455 | uint32_t uMaxId, uVendorEBX, uVendorECX, uVendorEDX;
|
---|
4456 | ASMCpuId(0, &uMaxId, &uVendorEBX, &uVendorECX, &uVendorEDX);
|
---|
4457 | Assert(RTX86IsValidStdRange(uMaxId));
|
---|
4458 | Assert( RTX86IsIntelCpu( uVendorEBX, uVendorECX, uVendorEDX)
|
---|
4459 | || RTX86IsViaCentaurCpu(uVendorEBX, uVendorECX, uVendorEDX)
|
---|
4460 | || RTX86IsShanghaiCpu( uVendorEBX, uVendorECX, uVendorEDX));
|
---|
4461 | #endif
|
---|
4462 | ASMCpuId(1, &uDummy, &uDummy, &fFeaturesECX, &uDummy);
|
---|
4463 | bool fSmxVmxHwSupport = false;
|
---|
4464 | if ( (fFeaturesECX & X86_CPUID_FEATURE_ECX_VMX)
|
---|
4465 | && (fFeaturesECX & X86_CPUID_FEATURE_ECX_SMX))
|
---|
4466 | fSmxVmxHwSupport = true;
|
---|
4467 |
|
---|
4468 | fFeatMsr |= MSR_IA32_FEATURE_CONTROL_LOCK
|
---|
4469 | | MSR_IA32_FEATURE_CONTROL_VMXON;
|
---|
4470 | if (fSmxVmxHwSupport)
|
---|
4471 | fFeatMsr |= MSR_IA32_FEATURE_CONTROL_SMX_VMXON;
|
---|
4472 |
|
---|
4473 | /*
|
---|
4474 | * Commit.
|
---|
4475 | */
|
---|
4476 | ASMWrMsr(MSR_IA32_FEATURE_CONTROL, fFeatMsr);
|
---|
4477 |
|
---|
4478 | /*
|
---|
4479 | * Verify.
|
---|
4480 | */
|
---|
4481 | fFeatMsr = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
|
---|
4482 | fMsrLocked = RT_BOOL(fFeatMsr & MSR_IA32_FEATURE_CONTROL_LOCK);
|
---|
4483 | if (fMsrLocked)
|
---|
4484 | {
|
---|
4485 | fSmxVmxAllowed = RT_BOOL(fFeatMsr & MSR_IA32_FEATURE_CONTROL_SMX_VMXON);
|
---|
4486 | fVmxAllowed = RT_BOOL(fFeatMsr & MSR_IA32_FEATURE_CONTROL_VMXON);
|
---|
4487 | if ( fVmxAllowed
|
---|
4488 | && ( !fSmxVmxHwSupport
|
---|
4489 | || fSmxVmxAllowed))
|
---|
4490 | rc = VINF_SUCCESS;
|
---|
4491 | else
|
---|
4492 | rc = !fSmxVmxHwSupport ? VERR_VMX_MSR_VMX_ENABLE_FAILED : VERR_VMX_MSR_SMX_VMX_ENABLE_FAILED;
|
---|
4493 | }
|
---|
4494 | else
|
---|
4495 | rc = VERR_VMX_MSR_LOCKING_FAILED;
|
---|
4496 | }
|
---|
4497 |
|
---|
4498 | if (pfIsSmxModeAmbiguous)
|
---|
4499 | *pfIsSmxModeAmbiguous = fIsSmxModeAmbiguous;
|
---|
4500 |
|
---|
4501 | return rc;
|
---|
4502 | }
|
---|
4503 | SUPR0_EXPORT_SYMBOL(SUPR0GetVmxUsability);
|
---|
4504 |
|
---|
4505 |
|
---|
4506 | /**
|
---|
4507 | * Checks if AMD-V SVM feature is usable on this CPU.
|
---|
4508 | *
|
---|
4509 | * @returns VBox status code.
|
---|
4510 | * @param fInitSvm If usable, try to initialize SVM on this CPU.
|
---|
4511 | *
|
---|
4512 | * @remarks Must be called with preemption disabled.
|
---|
4513 | */
|
---|
4514 | SUPR0DECL(int) SUPR0GetSvmUsability(bool fInitSvm)
|
---|
4515 | {
|
---|
4516 | int rc;
|
---|
4517 | uint64_t fVmCr;
|
---|
4518 | uint64_t fEfer;
|
---|
4519 |
|
---|
4520 | Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
|
---|
4521 | fVmCr = ASMRdMsr(MSR_K8_VM_CR);
|
---|
4522 | if (!(fVmCr & MSR_K8_VM_CR_SVM_DISABLE))
|
---|
4523 | {
|
---|
4524 | rc = VINF_SUCCESS;
|
---|
4525 | if (fInitSvm)
|
---|
4526 | {
|
---|
4527 | /* Turn on SVM in the EFER MSR. */
|
---|
4528 | fEfer = ASMRdMsr(MSR_K6_EFER);
|
---|
4529 | if (fEfer & MSR_K6_EFER_SVME)
|
---|
4530 | rc = VERR_SVM_IN_USE;
|
---|
4531 | else
|
---|
4532 | {
|
---|
4533 | ASMWrMsr(MSR_K6_EFER, fEfer | MSR_K6_EFER_SVME);
|
---|
4534 |
|
---|
4535 | /* Paranoia. */
|
---|
4536 | fEfer = ASMRdMsr(MSR_K6_EFER);
|
---|
4537 | if (fEfer & MSR_K6_EFER_SVME)
|
---|
4538 | {
|
---|
4539 | /* Restore previous value. */
|
---|
4540 | ASMWrMsr(MSR_K6_EFER, fEfer & ~MSR_K6_EFER_SVME);
|
---|
4541 | }
|
---|
4542 | else
|
---|
4543 | rc = VERR_SVM_ILLEGAL_EFER_MSR;
|
---|
4544 | }
|
---|
4545 | }
|
---|
4546 | }
|
---|
4547 | else
|
---|
4548 | rc = VERR_SVM_DISABLED;
|
---|
4549 | return rc;
|
---|
4550 | }
|
---|
4551 | SUPR0_EXPORT_SYMBOL(SUPR0GetSvmUsability);
|
---|
4552 |
|
---|
4553 |
|
---|
4554 | /**
|
---|
4555 | * Queries the AMD-V and VT-x capabilities of the calling CPU.
|
---|
4556 | *
|
---|
4557 | * @returns VBox status code.
|
---|
4558 | * @retval VERR_VMX_NO_VMX
|
---|
4559 | * @retval VERR_VMX_MSR_ALL_VMX_DISABLED
|
---|
4560 | * @retval VERR_VMX_MSR_VMX_DISABLED
|
---|
4561 | * @retval VERR_VMX_MSR_LOCKING_FAILED
|
---|
4562 | * @retval VERR_VMX_MSR_VMX_ENABLE_FAILED
|
---|
4563 | * @retval VERR_VMX_MSR_SMX_VMX_ENABLE_FAILED
|
---|
4564 | * @retval VERR_SVM_NO_SVM
|
---|
4565 | * @retval VERR_SVM_DISABLED
|
---|
4566 | * @retval VERR_UNSUPPORTED_CPU if not identifiable as an AMD, Intel or VIA
|
---|
4567 | * (centaur)/Shanghai CPU.
|
---|
4568 | *
|
---|
4569 | * @param pfCaps Where to store the capabilities.
|
---|
4570 | */
|
---|
4571 | int VBOXCALL supdrvQueryVTCapsInternal(uint32_t *pfCaps)
|
---|
4572 | {
|
---|
4573 | int rc = VERR_UNSUPPORTED_CPU;
|
---|
4574 | bool fIsSmxModeAmbiguous = false;
|
---|
4575 | RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
|
---|
4576 |
|
---|
4577 | /*
|
---|
4578 | * Input validation.
|
---|
4579 | */
|
---|
4580 | AssertPtrReturn(pfCaps, VERR_INVALID_POINTER);
|
---|
4581 | *pfCaps = 0;
|
---|
4582 |
|
---|
4583 | /* We may modify MSRs and re-read them, disable preemption so we make sure we don't migrate CPUs. */
|
---|
4584 | RTThreadPreemptDisable(&PreemptState);
|
---|
4585 |
|
---|
4586 | /* Check if VT-x/AMD-V is supported. */
|
---|
4587 | rc = SUPR0GetVTSupport(pfCaps);
|
---|
4588 | if (RT_SUCCESS(rc))
|
---|
4589 | {
|
---|
4590 | /* Check if VT-x is supported. */
|
---|
4591 | if (*pfCaps & SUPVTCAPS_VT_X)
|
---|
4592 | {
|
---|
4593 | /* Check if VT-x is usable. */
|
---|
4594 | rc = SUPR0GetVmxUsability(&fIsSmxModeAmbiguous);
|
---|
4595 | if (RT_SUCCESS(rc))
|
---|
4596 | {
|
---|
4597 | /* Query some basic VT-x capabilities (mainly required by our GUI). */
|
---|
4598 | VMXCTLSMSR vtCaps;
|
---|
4599 | vtCaps.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS);
|
---|
4600 | if (vtCaps.n.allowed1 & VMX_PROC_CTLS_USE_SECONDARY_CTLS)
|
---|
4601 | {
|
---|
4602 | vtCaps.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS2);
|
---|
4603 | if (vtCaps.n.allowed1 & VMX_PROC_CTLS2_EPT)
|
---|
4604 | *pfCaps |= SUPVTCAPS_NESTED_PAGING;
|
---|
4605 | if (vtCaps.n.allowed1 & VMX_PROC_CTLS2_UNRESTRICTED_GUEST)
|
---|
4606 | *pfCaps |= SUPVTCAPS_VTX_UNRESTRICTED_GUEST;
|
---|
4607 | if (vtCaps.n.allowed1 & VMX_PROC_CTLS2_VMCS_SHADOWING)
|
---|
4608 | *pfCaps |= SUPVTCAPS_VTX_VMCS_SHADOWING;
|
---|
4609 | }
|
---|
4610 | }
|
---|
4611 | }
|
---|
4612 | /* Check if AMD-V is supported. */
|
---|
4613 | else if (*pfCaps & SUPVTCAPS_AMD_V)
|
---|
4614 | {
|
---|
4615 | /* Check is SVM is usable. */
|
---|
4616 | rc = SUPR0GetSvmUsability(false /* fInitSvm */);
|
---|
4617 | if (RT_SUCCESS(rc))
|
---|
4618 | {
|
---|
4619 | /* Query some basic AMD-V capabilities (mainly required by our GUI). */
|
---|
4620 | uint32_t uDummy, fSvmFeatures;
|
---|
4621 | ASMCpuId(0x8000000a, &uDummy, &uDummy, &uDummy, &fSvmFeatures);
|
---|
4622 | if (fSvmFeatures & X86_CPUID_SVM_FEATURE_EDX_NESTED_PAGING)
|
---|
4623 | *pfCaps |= SUPVTCAPS_NESTED_PAGING;
|
---|
4624 | if (fSvmFeatures & X86_CPUID_SVM_FEATURE_EDX_VIRT_VMSAVE_VMLOAD)
|
---|
4625 | *pfCaps |= SUPVTCAPS_AMDV_VIRT_VMSAVE_VMLOAD;
|
---|
4626 | }
|
---|
4627 | }
|
---|
4628 | }
|
---|
4629 |
|
---|
4630 | /* Restore preemption. */
|
---|
4631 | RTThreadPreemptRestore(&PreemptState);
|
---|
4632 |
|
---|
4633 | /* After restoring preemption, if we may be in SMX mode, print a warning as it's difficult to debug such problems. */
|
---|
4634 | if (fIsSmxModeAmbiguous)
|
---|
4635 | SUPR0Printf(("WARNING! CR4 hints SMX mode but your CPU is too secretive. Proceeding anyway... We wish you good luck!\n"));
|
---|
4636 |
|
---|
4637 | return rc;
|
---|
4638 | }
|
---|
4639 |
|
---|
4640 |
|
---|
4641 | /**
|
---|
4642 | * Queries the AMD-V and VT-x capabilities of the calling CPU.
|
---|
4643 | *
|
---|
4644 | * @returns VBox status code.
|
---|
4645 | * @retval VERR_VMX_NO_VMX
|
---|
4646 | * @retval VERR_VMX_MSR_ALL_VMX_DISABLED
|
---|
4647 | * @retval VERR_VMX_MSR_VMX_DISABLED
|
---|
4648 | * @retval VERR_VMX_MSR_LOCKING_FAILED
|
---|
4649 | * @retval VERR_VMX_MSR_VMX_ENABLE_FAILED
|
---|
4650 | * @retval VERR_VMX_MSR_SMX_VMX_ENABLE_FAILED
|
---|
4651 | * @retval VERR_SVM_NO_SVM
|
---|
4652 | * @retval VERR_SVM_DISABLED
|
---|
4653 | * @retval VERR_UNSUPPORTED_CPU if not identifiable as an AMD, Intel or VIA
|
---|
4654 | * (centaur)/Shanghai CPU.
|
---|
4655 | *
|
---|
4656 | * @param pSession The session handle.
|
---|
4657 | * @param pfCaps Where to store the capabilities.
|
---|
4658 | */
|
---|
4659 | SUPR0DECL(int) SUPR0QueryVTCaps(PSUPDRVSESSION pSession, uint32_t *pfCaps)
|
---|
4660 | {
|
---|
4661 | /*
|
---|
4662 | * Input validation.
|
---|
4663 | */
|
---|
4664 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4665 | AssertPtrReturn(pfCaps, VERR_INVALID_POINTER);
|
---|
4666 |
|
---|
4667 | /*
|
---|
4668 | * Call common worker.
|
---|
4669 | */
|
---|
4670 | return supdrvQueryVTCapsInternal(pfCaps);
|
---|
4671 | }
|
---|
4672 | SUPR0_EXPORT_SYMBOL(SUPR0QueryVTCaps);
|
---|
4673 |
|
---|
4674 |
|
---|
4675 | /**
|
---|
4676 | * Queries the CPU microcode revision.
|
---|
4677 | *
|
---|
4678 | * @returns VBox status code.
|
---|
4679 | * @retval VERR_UNSUPPORTED_CPU if not identifiable as a processor with
|
---|
4680 | * readable microcode rev.
|
---|
4681 | *
|
---|
4682 | * @param puRevision Where to store the microcode revision.
|
---|
4683 | */
|
---|
4684 | static int VBOXCALL supdrvQueryUcodeRev(uint32_t *puRevision)
|
---|
4685 | {
|
---|
4686 | int rc = VERR_UNSUPPORTED_CPU;
|
---|
4687 | RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
|
---|
4688 |
|
---|
4689 | /*
|
---|
4690 | * Input validation.
|
---|
4691 | */
|
---|
4692 | AssertPtrReturn(puRevision, VERR_INVALID_POINTER);
|
---|
4693 |
|
---|
4694 | *puRevision = 0;
|
---|
4695 |
|
---|
4696 | /* Disable preemption so we make sure we don't migrate CPUs, just in case. */
|
---|
4697 | /* NB: We assume that there aren't mismatched microcode revs in the system. */
|
---|
4698 | RTThreadPreemptDisable(&PreemptState);
|
---|
4699 |
|
---|
4700 | if (ASMHasCpuId())
|
---|
4701 | {
|
---|
4702 | uint32_t uDummy, uTFMSEAX;
|
---|
4703 | uint32_t uMaxId, uVendorEBX, uVendorECX, uVendorEDX;
|
---|
4704 |
|
---|
4705 | ASMCpuId(0, &uMaxId, &uVendorEBX, &uVendorECX, &uVendorEDX);
|
---|
4706 | ASMCpuId(1, &uTFMSEAX, &uDummy, &uDummy, &uDummy);
|
---|
4707 |
|
---|
4708 | if (RTX86IsValidStdRange(uMaxId))
|
---|
4709 | {
|
---|
4710 | uint64_t uRevMsr;
|
---|
4711 | if (RTX86IsIntelCpu(uVendorEBX, uVendorECX, uVendorEDX))
|
---|
4712 | {
|
---|
4713 | /* Architectural MSR available on Pentium Pro and later. */
|
---|
4714 | if (RTX86GetCpuFamily(uTFMSEAX) >= 6)
|
---|
4715 | {
|
---|
4716 | /* Revision is in the high dword. */
|
---|
4717 | uRevMsr = ASMRdMsr(MSR_IA32_BIOS_SIGN_ID);
|
---|
4718 | *puRevision = RT_HIDWORD(uRevMsr);
|
---|
4719 | rc = VINF_SUCCESS;
|
---|
4720 | }
|
---|
4721 | }
|
---|
4722 | else if ( RTX86IsAmdCpu(uVendorEBX, uVendorECX, uVendorEDX)
|
---|
4723 | || RTX86IsHygonCpu(uVendorEBX, uVendorECX, uVendorEDX))
|
---|
4724 | {
|
---|
4725 | /* Not well documented, but at least all AMD64 CPUs support this. */
|
---|
4726 | if (RTX86GetCpuFamily(uTFMSEAX) >= 15)
|
---|
4727 | {
|
---|
4728 | /* Revision is in the low dword. */
|
---|
4729 | uRevMsr = ASMRdMsr(MSR_IA32_BIOS_SIGN_ID); /* Same MSR as Intel. */
|
---|
4730 | *puRevision = RT_LODWORD(uRevMsr);
|
---|
4731 | rc = VINF_SUCCESS;
|
---|
4732 | }
|
---|
4733 | }
|
---|
4734 | }
|
---|
4735 | }
|
---|
4736 |
|
---|
4737 | RTThreadPreemptRestore(&PreemptState);
|
---|
4738 |
|
---|
4739 | return rc;
|
---|
4740 | }
|
---|
4741 |
|
---|
4742 |
|
---|
4743 | /**
|
---|
4744 | * Queries the CPU microcode revision.
|
---|
4745 | *
|
---|
4746 | * @returns VBox status code.
|
---|
4747 | * @retval VERR_UNSUPPORTED_CPU if not identifiable as a processor with
|
---|
4748 | * readable microcode rev.
|
---|
4749 | *
|
---|
4750 | * @param pSession The session handle.
|
---|
4751 | * @param puRevision Where to store the microcode revision.
|
---|
4752 | */
|
---|
4753 | SUPR0DECL(int) SUPR0QueryUcodeRev(PSUPDRVSESSION pSession, uint32_t *puRevision)
|
---|
4754 | {
|
---|
4755 | /*
|
---|
4756 | * Input validation.
|
---|
4757 | */
|
---|
4758 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4759 | AssertPtrReturn(puRevision, VERR_INVALID_POINTER);
|
---|
4760 |
|
---|
4761 | /*
|
---|
4762 | * Call common worker.
|
---|
4763 | */
|
---|
4764 | return supdrvQueryUcodeRev(puRevision);
|
---|
4765 | }
|
---|
4766 | SUPR0_EXPORT_SYMBOL(SUPR0QueryUcodeRev);
|
---|
4767 |
|
---|
4768 |
|
---|
4769 | /**
|
---|
4770 | * Gets hardware-virtualization MSRs of the calling CPU.
|
---|
4771 | *
|
---|
4772 | * @returns VBox status code.
|
---|
4773 | * @param pMsrs Where to store the hardware-virtualization MSRs.
|
---|
4774 | * @param fCaps Hardware virtualization capabilities (SUPVTCAPS_XXX). Pass 0
|
---|
4775 | * to explicitly check for the presence of VT-x/AMD-V before
|
---|
4776 | * querying MSRs.
|
---|
4777 | * @param fForce Force querying of MSRs from the hardware.
|
---|
4778 | */
|
---|
4779 | SUPR0DECL(int) SUPR0GetHwvirtMsrs(PSUPHWVIRTMSRS pMsrs, uint32_t fCaps, bool fForce)
|
---|
4780 | {
|
---|
4781 | NOREF(fForce);
|
---|
4782 |
|
---|
4783 | int rc;
|
---|
4784 | RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
|
---|
4785 |
|
---|
4786 | /*
|
---|
4787 | * Input validation.
|
---|
4788 | */
|
---|
4789 | AssertPtrReturn(pMsrs, VERR_INVALID_POINTER);
|
---|
4790 |
|
---|
4791 | /*
|
---|
4792 | * Disable preemption so we make sure we don't migrate CPUs and because
|
---|
4793 | * we access global data.
|
---|
4794 | */
|
---|
4795 | RTThreadPreemptDisable(&PreemptState);
|
---|
4796 |
|
---|
4797 | /*
|
---|
4798 | * Query the MSRs from the hardware.
|
---|
4799 | */
|
---|
4800 | SUPHWVIRTMSRS Msrs;
|
---|
4801 | RT_ZERO(Msrs);
|
---|
4802 |
|
---|
4803 | /* If the caller claims VT-x/AMD-V is supported, don't need to recheck it. */
|
---|
4804 | if (!(fCaps & (SUPVTCAPS_VT_X | SUPVTCAPS_AMD_V)))
|
---|
4805 | rc = SUPR0GetVTSupport(&fCaps);
|
---|
4806 | else
|
---|
4807 | rc = VINF_SUCCESS;
|
---|
4808 | if (RT_SUCCESS(rc))
|
---|
4809 | {
|
---|
4810 | if (fCaps & SUPVTCAPS_VT_X)
|
---|
4811 | {
|
---|
4812 | Msrs.u.vmx.u64FeatCtrl = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
|
---|
4813 | Msrs.u.vmx.u64Basic = ASMRdMsr(MSR_IA32_VMX_BASIC);
|
---|
4814 | Msrs.u.vmx.PinCtls.u = ASMRdMsr(MSR_IA32_VMX_PINBASED_CTLS);
|
---|
4815 | Msrs.u.vmx.ProcCtls.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS);
|
---|
4816 | Msrs.u.vmx.ExitCtls.u = ASMRdMsr(MSR_IA32_VMX_EXIT_CTLS);
|
---|
4817 | Msrs.u.vmx.EntryCtls.u = ASMRdMsr(MSR_IA32_VMX_ENTRY_CTLS);
|
---|
4818 | Msrs.u.vmx.u64Misc = ASMRdMsr(MSR_IA32_VMX_MISC);
|
---|
4819 | Msrs.u.vmx.u64Cr0Fixed0 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED0);
|
---|
4820 | Msrs.u.vmx.u64Cr0Fixed1 = ASMRdMsr(MSR_IA32_VMX_CR0_FIXED1);
|
---|
4821 | Msrs.u.vmx.u64Cr4Fixed0 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED0);
|
---|
4822 | Msrs.u.vmx.u64Cr4Fixed1 = ASMRdMsr(MSR_IA32_VMX_CR4_FIXED1);
|
---|
4823 | Msrs.u.vmx.u64VmcsEnum = ASMRdMsr(MSR_IA32_VMX_VMCS_ENUM);
|
---|
4824 |
|
---|
4825 | if (RT_BF_GET(Msrs.u.vmx.u64Basic, VMX_BF_BASIC_TRUE_CTLS))
|
---|
4826 | {
|
---|
4827 | Msrs.u.vmx.TruePinCtls.u = ASMRdMsr(MSR_IA32_VMX_TRUE_PINBASED_CTLS);
|
---|
4828 | Msrs.u.vmx.TrueProcCtls.u = ASMRdMsr(MSR_IA32_VMX_TRUE_PROCBASED_CTLS);
|
---|
4829 | Msrs.u.vmx.TrueEntryCtls.u = ASMRdMsr(MSR_IA32_VMX_TRUE_ENTRY_CTLS);
|
---|
4830 | Msrs.u.vmx.TrueExitCtls.u = ASMRdMsr(MSR_IA32_VMX_TRUE_EXIT_CTLS);
|
---|
4831 | }
|
---|
4832 |
|
---|
4833 | if (Msrs.u.vmx.ProcCtls.n.allowed1 & VMX_PROC_CTLS_USE_SECONDARY_CTLS)
|
---|
4834 | {
|
---|
4835 | Msrs.u.vmx.ProcCtls2.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS2);
|
---|
4836 |
|
---|
4837 | if (Msrs.u.vmx.ProcCtls2.n.allowed1 & (VMX_PROC_CTLS2_EPT | VMX_PROC_CTLS2_VPID))
|
---|
4838 | Msrs.u.vmx.u64EptVpidCaps = ASMRdMsr(MSR_IA32_VMX_EPT_VPID_CAP);
|
---|
4839 |
|
---|
4840 | if (Msrs.u.vmx.ProcCtls2.n.allowed1 & VMX_PROC_CTLS2_VMFUNC)
|
---|
4841 | Msrs.u.vmx.u64VmFunc = ASMRdMsr(MSR_IA32_VMX_VMFUNC);
|
---|
4842 | }
|
---|
4843 |
|
---|
4844 | if (Msrs.u.vmx.ProcCtls.n.allowed1 & VMX_PROC_CTLS_USE_TERTIARY_CTLS)
|
---|
4845 | Msrs.u.vmx.u64ProcCtls3 = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS3);
|
---|
4846 |
|
---|
4847 | if (Msrs.u.vmx.ExitCtls.n.allowed1 & VMX_EXIT_CTLS_USE_SECONDARY_CTLS)
|
---|
4848 | Msrs.u.vmx.u64ExitCtls2 = ASMRdMsr(MSR_IA32_VMX_EXIT_CTLS2);
|
---|
4849 | }
|
---|
4850 | else if (fCaps & SUPVTCAPS_AMD_V)
|
---|
4851 | {
|
---|
4852 | Msrs.u.svm.u64MsrHwcr = ASMRdMsr(MSR_K8_HWCR);
|
---|
4853 | Msrs.u.svm.u64MsrSmmAddr = ASMRdMsr(MSR_K7_SMM_ADDR);
|
---|
4854 | Msrs.u.svm.u64MsrSmmMask = ASMRdMsr(MSR_K7_SMM_MASK);
|
---|
4855 | }
|
---|
4856 | else
|
---|
4857 | {
|
---|
4858 | RTThreadPreemptRestore(&PreemptState);
|
---|
4859 | AssertMsgFailedReturn(("SUPR0GetVTSupport returns success but neither VT-x nor AMD-V reported!\n"),
|
---|
4860 | VERR_INTERNAL_ERROR_2);
|
---|
4861 | }
|
---|
4862 |
|
---|
4863 | /*
|
---|
4864 | * Copy the MSRs out.
|
---|
4865 | */
|
---|
4866 | memcpy(pMsrs, &Msrs, sizeof(*pMsrs));
|
---|
4867 | }
|
---|
4868 |
|
---|
4869 | RTThreadPreemptRestore(&PreemptState);
|
---|
4870 |
|
---|
4871 | return rc;
|
---|
4872 | }
|
---|
4873 | SUPR0_EXPORT_SYMBOL(SUPR0GetHwvirtMsrs);
|
---|
4874 |
|
---|
4875 |
|
---|
4876 | /**
|
---|
4877 | * Register a component factory with the support driver.
|
---|
4878 | *
|
---|
4879 | * This is currently restricted to kernel sessions only.
|
---|
4880 | *
|
---|
4881 | * @returns VBox status code.
|
---|
4882 | * @retval VINF_SUCCESS on success.
|
---|
4883 | * @retval VERR_NO_MEMORY if we're out of memory.
|
---|
4884 | * @retval VERR_ALREADY_EXISTS if the factory has already been registered.
|
---|
4885 | * @retval VERR_ACCESS_DENIED if it isn't a kernel session.
|
---|
4886 | * @retval VERR_INVALID_PARAMETER on invalid parameter.
|
---|
4887 | * @retval VERR_INVALID_POINTER on invalid pointer parameter.
|
---|
4888 | *
|
---|
4889 | * @param pSession The SUPDRV session (must be a ring-0 session).
|
---|
4890 | * @param pFactory Pointer to the component factory registration structure.
|
---|
4891 | *
|
---|
4892 | * @remarks This interface is also available via SUPR0IdcComponentRegisterFactory.
|
---|
4893 | */
|
---|
4894 | SUPR0DECL(int) SUPR0ComponentRegisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory)
|
---|
4895 | {
|
---|
4896 | PSUPDRVFACTORYREG pNewReg;
|
---|
4897 | const char *psz;
|
---|
4898 | int rc;
|
---|
4899 |
|
---|
4900 | /*
|
---|
4901 | * Validate parameters.
|
---|
4902 | */
|
---|
4903 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4904 | AssertReturn(pSession->R0Process == NIL_RTR0PROCESS, VERR_ACCESS_DENIED);
|
---|
4905 | AssertPtrReturn(pFactory, VERR_INVALID_POINTER);
|
---|
4906 | AssertPtrReturn(pFactory->pfnQueryFactoryInterface, VERR_INVALID_POINTER);
|
---|
4907 | psz = RTStrEnd(pFactory->szName, sizeof(pFactory->szName));
|
---|
4908 | AssertReturn(psz, VERR_INVALID_PARAMETER);
|
---|
4909 |
|
---|
4910 | /*
|
---|
4911 | * Allocate and initialize a new registration structure.
|
---|
4912 | */
|
---|
4913 | pNewReg = (PSUPDRVFACTORYREG)RTMemAlloc(sizeof(SUPDRVFACTORYREG));
|
---|
4914 | if (pNewReg)
|
---|
4915 | {
|
---|
4916 | pNewReg->pNext = NULL;
|
---|
4917 | pNewReg->pFactory = pFactory;
|
---|
4918 | pNewReg->pSession = pSession;
|
---|
4919 | pNewReg->cchName = psz - &pFactory->szName[0];
|
---|
4920 |
|
---|
4921 | /*
|
---|
4922 | * Add it to the tail of the list after checking for prior registration.
|
---|
4923 | */
|
---|
4924 | rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
|
---|
4925 | if (RT_SUCCESS(rc))
|
---|
4926 | {
|
---|
4927 | PSUPDRVFACTORYREG pPrev = NULL;
|
---|
4928 | PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
|
---|
4929 | while (pCur && pCur->pFactory != pFactory)
|
---|
4930 | {
|
---|
4931 | pPrev = pCur;
|
---|
4932 | pCur = pCur->pNext;
|
---|
4933 | }
|
---|
4934 | if (!pCur)
|
---|
4935 | {
|
---|
4936 | if (pPrev)
|
---|
4937 | pPrev->pNext = pNewReg;
|
---|
4938 | else
|
---|
4939 | pSession->pDevExt->pComponentFactoryHead = pNewReg;
|
---|
4940 | rc = VINF_SUCCESS;
|
---|
4941 | }
|
---|
4942 | else
|
---|
4943 | rc = VERR_ALREADY_EXISTS;
|
---|
4944 |
|
---|
4945 | RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
|
---|
4946 | }
|
---|
4947 |
|
---|
4948 | if (RT_FAILURE(rc))
|
---|
4949 | RTMemFree(pNewReg);
|
---|
4950 | }
|
---|
4951 | else
|
---|
4952 | rc = VERR_NO_MEMORY;
|
---|
4953 | return rc;
|
---|
4954 | }
|
---|
4955 | SUPR0_EXPORT_SYMBOL(SUPR0ComponentRegisterFactory);
|
---|
4956 |
|
---|
4957 |
|
---|
4958 | /**
|
---|
4959 | * Deregister a component factory.
|
---|
4960 | *
|
---|
4961 | * @returns VBox status code.
|
---|
4962 | * @retval VINF_SUCCESS on success.
|
---|
4963 | * @retval VERR_NOT_FOUND if the factory wasn't registered.
|
---|
4964 | * @retval VERR_ACCESS_DENIED if it isn't a kernel session.
|
---|
4965 | * @retval VERR_INVALID_PARAMETER on invalid parameter.
|
---|
4966 | * @retval VERR_INVALID_POINTER on invalid pointer parameter.
|
---|
4967 | *
|
---|
4968 | * @param pSession The SUPDRV session (must be a ring-0 session).
|
---|
4969 | * @param pFactory Pointer to the component factory registration structure
|
---|
4970 | * previously passed SUPR0ComponentRegisterFactory().
|
---|
4971 | *
|
---|
4972 | * @remarks This interface is also available via SUPR0IdcComponentDeregisterFactory.
|
---|
4973 | */
|
---|
4974 | SUPR0DECL(int) SUPR0ComponentDeregisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory)
|
---|
4975 | {
|
---|
4976 | int rc;
|
---|
4977 |
|
---|
4978 | /*
|
---|
4979 | * Validate parameters.
|
---|
4980 | */
|
---|
4981 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4982 | AssertReturn(pSession->R0Process == NIL_RTR0PROCESS, VERR_ACCESS_DENIED);
|
---|
4983 | AssertPtrReturn(pFactory, VERR_INVALID_POINTER);
|
---|
4984 |
|
---|
4985 | /*
|
---|
4986 | * Take the lock and look for the registration record.
|
---|
4987 | */
|
---|
4988 | rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
|
---|
4989 | if (RT_SUCCESS(rc))
|
---|
4990 | {
|
---|
4991 | PSUPDRVFACTORYREG pPrev = NULL;
|
---|
4992 | PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
|
---|
4993 | while (pCur && pCur->pFactory != pFactory)
|
---|
4994 | {
|
---|
4995 | pPrev = pCur;
|
---|
4996 | pCur = pCur->pNext;
|
---|
4997 | }
|
---|
4998 | if (pCur)
|
---|
4999 | {
|
---|
5000 | if (!pPrev)
|
---|
5001 | pSession->pDevExt->pComponentFactoryHead = pCur->pNext;
|
---|
5002 | else
|
---|
5003 | pPrev->pNext = pCur->pNext;
|
---|
5004 |
|
---|
5005 | pCur->pNext = NULL;
|
---|
5006 | pCur->pFactory = NULL;
|
---|
5007 | pCur->pSession = NULL;
|
---|
5008 | rc = VINF_SUCCESS;
|
---|
5009 | }
|
---|
5010 | else
|
---|
5011 | rc = VERR_NOT_FOUND;
|
---|
5012 |
|
---|
5013 | RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
|
---|
5014 |
|
---|
5015 | RTMemFree(pCur);
|
---|
5016 | }
|
---|
5017 | return rc;
|
---|
5018 | }
|
---|
5019 | SUPR0_EXPORT_SYMBOL(SUPR0ComponentDeregisterFactory);
|
---|
5020 |
|
---|
5021 |
|
---|
5022 | /**
|
---|
5023 | * Queries a component factory.
|
---|
5024 | *
|
---|
5025 | * @returns VBox status code.
|
---|
5026 | * @retval VERR_INVALID_PARAMETER on invalid parameter.
|
---|
5027 | * @retval VERR_INVALID_POINTER on invalid pointer parameter.
|
---|
5028 | * @retval VERR_SUPDRV_COMPONENT_NOT_FOUND if the component factory wasn't found.
|
---|
5029 | * @retval VERR_SUPDRV_INTERFACE_NOT_SUPPORTED if the interface wasn't supported.
|
---|
5030 | *
|
---|
5031 | * @param pSession The SUPDRV session.
|
---|
5032 | * @param pszName The name of the component factory.
|
---|
5033 | * @param pszInterfaceUuid The UUID of the factory interface (stringified).
|
---|
5034 | * @param ppvFactoryIf Where to store the factory interface.
|
---|
5035 | */
|
---|
5036 | SUPR0DECL(int) SUPR0ComponentQueryFactory(PSUPDRVSESSION pSession, const char *pszName, const char *pszInterfaceUuid, void **ppvFactoryIf)
|
---|
5037 | {
|
---|
5038 | const char *pszEnd;
|
---|
5039 | size_t cchName;
|
---|
5040 | int rc;
|
---|
5041 |
|
---|
5042 | /*
|
---|
5043 | * Validate parameters.
|
---|
5044 | */
|
---|
5045 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
5046 |
|
---|
5047 | AssertPtrReturn(pszName, VERR_INVALID_POINTER);
|
---|
5048 | pszEnd = RTStrEnd(pszName, RT_SIZEOFMEMB(SUPDRVFACTORY, szName));
|
---|
5049 | AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
|
---|
5050 | cchName = pszEnd - pszName;
|
---|
5051 |
|
---|
5052 | AssertPtrReturn(pszInterfaceUuid, VERR_INVALID_POINTER);
|
---|
5053 | pszEnd = RTStrEnd(pszInterfaceUuid, RTUUID_STR_LENGTH);
|
---|
5054 | AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
|
---|
5055 |
|
---|
5056 | AssertPtrReturn(ppvFactoryIf, VERR_INVALID_POINTER);
|
---|
5057 | *ppvFactoryIf = NULL;
|
---|
5058 |
|
---|
5059 | /*
|
---|
5060 | * Take the lock and try all factories by this name.
|
---|
5061 | */
|
---|
5062 | rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
|
---|
5063 | if (RT_SUCCESS(rc))
|
---|
5064 | {
|
---|
5065 | PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
|
---|
5066 | rc = VERR_SUPDRV_COMPONENT_NOT_FOUND;
|
---|
5067 | while (pCur)
|
---|
5068 | {
|
---|
5069 | if ( pCur->cchName == cchName
|
---|
5070 | && !memcmp(pCur->pFactory->szName, pszName, cchName))
|
---|
5071 | {
|
---|
5072 | void *pvFactory = pCur->pFactory->pfnQueryFactoryInterface(pCur->pFactory, pSession, pszInterfaceUuid);
|
---|
5073 | if (pvFactory)
|
---|
5074 | {
|
---|
5075 | *ppvFactoryIf = pvFactory;
|
---|
5076 | rc = VINF_SUCCESS;
|
---|
5077 | break;
|
---|
5078 | }
|
---|
5079 | rc = VERR_SUPDRV_INTERFACE_NOT_SUPPORTED;
|
---|
5080 | }
|
---|
5081 |
|
---|
5082 | /* next */
|
---|
5083 | pCur = pCur->pNext;
|
---|
5084 | }
|
---|
5085 |
|
---|
5086 | RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
|
---|
5087 | }
|
---|
5088 | return rc;
|
---|
5089 | }
|
---|
5090 | SUPR0_EXPORT_SYMBOL(SUPR0ComponentQueryFactory);
|
---|
5091 |
|
---|
5092 |
|
---|
5093 | /**
|
---|
5094 | * Adds a memory object to the session.
|
---|
5095 | *
|
---|
5096 | * @returns IPRT status code.
|
---|
5097 | * @param pMem Memory tracking structure containing the
|
---|
5098 | * information to track.
|
---|
5099 | * @param pSession The session.
|
---|
5100 | */
|
---|
5101 | static int supdrvMemAdd(PSUPDRVMEMREF pMem, PSUPDRVSESSION pSession)
|
---|
5102 | {
|
---|
5103 | PSUPDRVBUNDLE pBundle;
|
---|
5104 |
|
---|
5105 | /*
|
---|
5106 | * Find free entry and record the allocation.
|
---|
5107 | */
|
---|
5108 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
5109 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
5110 | {
|
---|
5111 | if (pBundle->cUsed < RT_ELEMENTS(pBundle->aMem))
|
---|
5112 | {
|
---|
5113 | unsigned i;
|
---|
5114 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
5115 | {
|
---|
5116 | if (pBundle->aMem[i].MemObj == NIL_RTR0MEMOBJ)
|
---|
5117 | {
|
---|
5118 | pBundle->cUsed++;
|
---|
5119 | pBundle->aMem[i] = *pMem;
|
---|
5120 | RTSpinlockRelease(pSession->Spinlock);
|
---|
5121 | return VINF_SUCCESS;
|
---|
5122 | }
|
---|
5123 | }
|
---|
5124 | AssertFailed(); /* !!this can't be happening!!! */
|
---|
5125 | }
|
---|
5126 | }
|
---|
5127 | RTSpinlockRelease(pSession->Spinlock);
|
---|
5128 |
|
---|
5129 | /*
|
---|
5130 | * Need to allocate a new bundle.
|
---|
5131 | * Insert into the last entry in the bundle.
|
---|
5132 | */
|
---|
5133 | pBundle = (PSUPDRVBUNDLE)RTMemAllocZ(sizeof(*pBundle));
|
---|
5134 | if (!pBundle)
|
---|
5135 | return VERR_NO_MEMORY;
|
---|
5136 |
|
---|
5137 | /* take last entry. */
|
---|
5138 | pBundle->cUsed++;
|
---|
5139 | pBundle->aMem[RT_ELEMENTS(pBundle->aMem) - 1] = *pMem;
|
---|
5140 |
|
---|
5141 | /* insert into list. */
|
---|
5142 | RTSpinlockAcquire |
---|