1 | /* $Id: SUPDrv.cpp 69498 2017-10-28 15:07:25Z 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) 2006-2016 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | */
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26 |
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27 |
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28 | /*********************************************************************************************************************************
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29 | * Header Files *
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30 | *********************************************************************************************************************************/
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31 | #define LOG_GROUP LOG_GROUP_SUP_DRV
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32 | #define SUPDRV_AGNOSTIC
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33 | #include "SUPDrvInternal.h"
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34 | #ifndef PAGE_SHIFT
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35 | # include <iprt/param.h>
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36 | #endif
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37 | #include <iprt/asm.h>
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38 | #include <iprt/asm-amd64-x86.h>
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39 | #include <iprt/asm-math.h>
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40 | #include <iprt/cpuset.h>
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41 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS)
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42 | # include <iprt/dbg.h>
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43 | #endif
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44 | #include <iprt/handletable.h>
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45 | #include <iprt/mem.h>
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46 | #include <iprt/mp.h>
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47 | #include <iprt/power.h>
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48 | #include <iprt/process.h>
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49 | #include <iprt/semaphore.h>
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50 | #include <iprt/spinlock.h>
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51 | #include <iprt/thread.h>
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52 | #include <iprt/uuid.h>
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53 | #include <iprt/net.h>
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54 | #include <iprt/crc.h>
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55 | #include <iprt/string.h>
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56 | #include <iprt/timer.h>
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57 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD)
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58 | # include <iprt/rand.h>
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59 | # include <iprt/path.h>
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60 | #endif
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61 | #include <iprt/uint128.h>
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62 | #include <iprt/x86.h>
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63 |
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64 | #include <VBox/param.h>
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65 | #include <VBox/log.h>
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66 | #include <VBox/err.h>
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67 | #include <VBox/vmm/hm_vmx.h>
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68 |
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69 | #if defined(RT_OS_SOLARIS) || defined(RT_OS_DARWIN)
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70 | # include "dtrace/SUPDrv.h"
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71 | #else
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72 | # define VBOXDRV_SESSION_CREATE(pvSession, fUser) do { } while (0)
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73 | # define VBOXDRV_SESSION_CLOSE(pvSession) do { } while (0)
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74 | # define VBOXDRV_IOCTL_ENTRY(pvSession, uIOCtl, pvReqHdr) do { } while (0)
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75 | # define VBOXDRV_IOCTL_RETURN(pvSession, uIOCtl, pvReqHdr, rcRet, rcReq) do { } while (0)
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76 | #endif
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77 |
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78 | /*
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79 | * Logging assignments:
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80 | * Log - useful stuff, like failures.
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81 | * LogFlow - program flow, except the really noisy bits.
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82 | * Log2 - Cleanup.
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83 | * Log3 - Loader flow noise.
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84 | * Log4 - Call VMMR0 flow noise.
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85 | * Log5 - Native yet-to-be-defined noise.
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86 | * Log6 - Native ioctl flow noise.
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87 | *
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88 | * Logging requires BUILD_TYPE=debug and possibly changes to the logger
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89 | * instantiation in log-vbox.c(pp).
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90 | */
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91 |
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92 |
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93 | /*********************************************************************************************************************************
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94 | * Defined Constants And Macros *
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95 | *********************************************************************************************************************************/
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96 | /** @def VBOX_SVN_REV
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97 | * The makefile should define this if it can. */
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98 | #ifndef VBOX_SVN_REV
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99 | # define VBOX_SVN_REV 0
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100 | #endif
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101 |
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102 | /** @ SUPDRV_CHECK_SMAP_SETUP
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103 | * SMAP check setup. */
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104 | /** @def SUPDRV_CHECK_SMAP_CHECK
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105 | * Checks that the AC flag is set if SMAP is enabled. If AC is not set, it
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106 | * will be logged and @a a_BadExpr is executed. */
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107 | #if defined(RT_OS_DARWIN) || defined(RT_OS_LINUX)
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108 | # define SUPDRV_CHECK_SMAP_SETUP() uint32_t const fKernelFeatures = SUPR0GetKernelFeatures()
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109 | # define SUPDRV_CHECK_SMAP_CHECK(a_pDevExt, a_BadExpr) \
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110 | do { \
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111 | if (fKernelFeatures & SUPKERNELFEATURES_SMAP) \
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112 | { \
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113 | RTCCUINTREG fEfl = ASMGetFlags(); \
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114 | if (RT_LIKELY(fEfl & X86_EFL_AC)) \
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115 | { /* likely */ } \
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116 | else \
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117 | { \
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118 | supdrvBadContext(a_pDevExt, "SUPDrv.cpp", __LINE__, "EFLAGS.AC is 0!"); \
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119 | a_BadExpr; \
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120 | } \
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121 | } \
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122 | } while (0)
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123 | #else
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124 | # define SUPDRV_CHECK_SMAP_SETUP() uint32_t const fKernelFeatures = 0
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125 | # define SUPDRV_CHECK_SMAP_CHECK(a_pDevExt, a_BadExpr) NOREF(fKernelFeatures)
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126 | #endif
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127 |
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128 |
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129 | /*********************************************************************************************************************************
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130 | * Internal Functions *
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131 | *********************************************************************************************************************************/
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132 | static DECLCALLBACK(int) supdrvSessionObjHandleRetain(RTHANDLETABLE hHandleTable, void *pvObj, void *pvCtx, void *pvUser);
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133 | static DECLCALLBACK(void) supdrvSessionObjHandleDelete(RTHANDLETABLE hHandleTable, uint32_t h, void *pvObj, void *pvCtx, void *pvUser);
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134 | static int supdrvMemAdd(PSUPDRVMEMREF pMem, PSUPDRVSESSION pSession);
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135 | static int supdrvMemRelease(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, SUPDRVMEMREFTYPE eType);
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136 | static int supdrvIOCtl_LdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDROPEN pReq);
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137 | static int supdrvIOCtl_LdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRLOAD pReq);
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138 | static int supdrvIOCtl_LdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRFREE pReq);
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139 | static int supdrvIOCtl_LdrLockDown(PSUPDRVDEVEXT pDevExt);
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140 | static int supdrvIOCtl_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRGETSYMBOL pReq);
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141 | static int supdrvIDC_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQGETSYM pReq);
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142 | static int supdrvLdrSetVMMR0EPs(PSUPDRVDEVEXT pDevExt, void *pvVMMR0, void *pvVMMR0EntryFast, void *pvVMMR0EntryEx);
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143 | static void supdrvLdrUnsetVMMR0EPs(PSUPDRVDEVEXT pDevExt);
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144 | static int supdrvLdrAddUsage(PSUPDRVSESSION pSession, PSUPDRVLDRIMAGE pImage);
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145 | static void supdrvLdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
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146 | DECLINLINE(int) supdrvLdrLock(PSUPDRVDEVEXT pDevExt);
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147 | DECLINLINE(int) supdrvLdrUnlock(PSUPDRVDEVEXT pDevExt);
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148 | static int supdrvIOCtl_CallServiceModule(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPCALLSERVICE pReq);
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149 | static int supdrvIOCtl_LoggerSettings(PSUPLOGGERSETTINGS pReq);
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150 | static int supdrvIOCtl_MsrProber(PSUPDRVDEVEXT pDevExt, PSUPMSRPROBER pReq);
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151 | static int supdrvIOCtl_ResumeSuspendedKbds(void);
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152 |
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153 |
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154 | /*********************************************************************************************************************************
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155 | * Global Variables *
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156 | *********************************************************************************************************************************/
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157 | /**
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158 | * Array of the R0 SUP API.
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159 | *
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160 | * While making changes to these exports, make sure to update the IOC
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161 | * minor version (SUPDRV_IOC_VERSION).
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162 | *
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163 | * @remarks This array is processed by SUPR0-def-pe.sed and SUPR0-def-lx.sed to
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164 | * produce definition files from which import libraries are generated.
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165 | * Take care when commenting things and especially with \#ifdef'ing.
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166 | */
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167 | static SUPFUNC g_aFunctions[] =
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168 | {
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169 | /* SED: START */
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170 | /* name function */
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171 | /* Entries with absolute addresses determined at runtime, fixup
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172 | code makes ugly ASSUMPTIONS about the order here: */
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173 | { "SUPR0AbsIs64bit", (void *)0 },
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174 | { "SUPR0Abs64bitKernelCS", (void *)0 },
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175 | { "SUPR0Abs64bitKernelSS", (void *)0 },
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176 | { "SUPR0Abs64bitKernelDS", (void *)0 },
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177 | { "SUPR0AbsKernelCS", (void *)0 },
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178 | { "SUPR0AbsKernelSS", (void *)0 },
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179 | { "SUPR0AbsKernelDS", (void *)0 },
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180 | { "SUPR0AbsKernelES", (void *)0 },
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181 | { "SUPR0AbsKernelFS", (void *)0 },
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182 | { "SUPR0AbsKernelGS", (void *)0 },
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183 | /* Normal function pointers: */
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184 | { "g_pSUPGlobalInfoPage", (void *)&g_pSUPGlobalInfoPage }, /* SED: DATA */
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185 | { "SUPGetGIP", (void *)(uintptr_t)SUPGetGIP },
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186 | { "SUPReadTscWithDelta", (void *)(uintptr_t)SUPReadTscWithDelta },
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187 | { "SUPGetTscDeltaSlow", (void *)(uintptr_t)SUPGetTscDeltaSlow },
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188 | { "SUPGetCpuHzFromGipForAsyncMode", (void *)(uintptr_t)SUPGetCpuHzFromGipForAsyncMode },
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189 | { "SUPIsTscFreqCompatible", (void *)(uintptr_t)SUPIsTscFreqCompatible },
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190 | { "SUPIsTscFreqCompatibleEx", (void *)(uintptr_t)SUPIsTscFreqCompatibleEx },
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191 | { "SUPR0BadContext", (void *)(uintptr_t)SUPR0BadContext },
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192 | { "SUPR0ComponentDeregisterFactory", (void *)(uintptr_t)SUPR0ComponentDeregisterFactory },
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193 | { "SUPR0ComponentQueryFactory", (void *)(uintptr_t)SUPR0ComponentQueryFactory },
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194 | { "SUPR0ComponentRegisterFactory", (void *)(uintptr_t)SUPR0ComponentRegisterFactory },
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195 | { "SUPR0ContAlloc", (void *)(uintptr_t)SUPR0ContAlloc },
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196 | { "SUPR0ContFree", (void *)(uintptr_t)SUPR0ContFree },
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197 | { "SUPR0ChangeCR4", (void *)(uintptr_t)SUPR0ChangeCR4 },
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198 | { "SUPR0EnableVTx", (void *)(uintptr_t)SUPR0EnableVTx },
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199 | { "SUPR0SuspendVTxOnCpu", (void *)(uintptr_t)SUPR0SuspendVTxOnCpu },
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200 | { "SUPR0ResumeVTxOnCpu", (void *)(uintptr_t)SUPR0ResumeVTxOnCpu },
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201 | { "SUPR0GetCurrentGdtRw", (void *)(uintptr_t)SUPR0GetCurrentGdtRw },
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202 | { "SUPR0GetKernelFeatures", (void *)(uintptr_t)SUPR0GetKernelFeatures },
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203 | { "SUPR0GetPagingMode", (void *)(uintptr_t)SUPR0GetPagingMode },
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204 | { "SUPR0GetSvmUsability", (void *)(uintptr_t)SUPR0GetSvmUsability },
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205 | { "SUPR0GetVmxUsability", (void *)(uintptr_t)SUPR0GetVmxUsability },
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206 | { "SUPR0LockMem", (void *)(uintptr_t)SUPR0LockMem },
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207 | { "SUPR0LowAlloc", (void *)(uintptr_t)SUPR0LowAlloc },
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208 | { "SUPR0LowFree", (void *)(uintptr_t)SUPR0LowFree },
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209 | { "SUPR0MemAlloc", (void *)(uintptr_t)SUPR0MemAlloc },
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210 | { "SUPR0MemFree", (void *)(uintptr_t)SUPR0MemFree },
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211 | { "SUPR0MemGetPhys", (void *)(uintptr_t)SUPR0MemGetPhys },
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212 | { "SUPR0ObjAddRef", (void *)(uintptr_t)SUPR0ObjAddRef },
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213 | { "SUPR0ObjAddRefEx", (void *)(uintptr_t)SUPR0ObjAddRefEx },
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214 | { "SUPR0ObjRegister", (void *)(uintptr_t)SUPR0ObjRegister },
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215 | { "SUPR0ObjRelease", (void *)(uintptr_t)SUPR0ObjRelease },
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216 | { "SUPR0ObjVerifyAccess", (void *)(uintptr_t)SUPR0ObjVerifyAccess },
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217 | { "SUPR0PageAllocEx", (void *)(uintptr_t)SUPR0PageAllocEx },
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218 | { "SUPR0PageFree", (void *)(uintptr_t)SUPR0PageFree },
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219 | { "SUPR0Printf", (void *)(uintptr_t)SUPR0Printf },
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220 | { "SUPR0GetSessionGVM", (void *)(uintptr_t)SUPR0GetSessionGVM },
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221 | { "SUPR0GetSessionVM", (void *)(uintptr_t)SUPR0GetSessionVM },
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222 | { "SUPR0SetSessionVM", (void *)(uintptr_t)SUPR0SetSessionVM },
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223 | { "SUPR0TscDeltaMeasureBySetIndex", (void *)(uintptr_t)SUPR0TscDeltaMeasureBySetIndex },
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224 | { "SUPR0TracerDeregisterDrv", (void *)(uintptr_t)SUPR0TracerDeregisterDrv },
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225 | { "SUPR0TracerDeregisterImpl", (void *)(uintptr_t)SUPR0TracerDeregisterImpl },
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226 | { "SUPR0TracerFireProbe", (void *)(uintptr_t)SUPR0TracerFireProbe },
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227 | { "SUPR0TracerRegisterDrv", (void *)(uintptr_t)SUPR0TracerRegisterDrv },
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228 | { "SUPR0TracerRegisterImpl", (void *)(uintptr_t)SUPR0TracerRegisterImpl },
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229 | { "SUPR0TracerRegisterModule", (void *)(uintptr_t)SUPR0TracerRegisterModule },
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230 | { "SUPR0TracerUmodProbeFire", (void *)(uintptr_t)SUPR0TracerUmodProbeFire },
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231 | { "SUPR0UnlockMem", (void *)(uintptr_t)SUPR0UnlockMem },
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232 | { "SUPSemEventClose", (void *)(uintptr_t)SUPSemEventClose },
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233 | { "SUPSemEventCreate", (void *)(uintptr_t)SUPSemEventCreate },
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234 | { "SUPSemEventGetResolution", (void *)(uintptr_t)SUPSemEventGetResolution },
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235 | { "SUPSemEventMultiClose", (void *)(uintptr_t)SUPSemEventMultiClose },
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236 | { "SUPSemEventMultiCreate", (void *)(uintptr_t)SUPSemEventMultiCreate },
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237 | { "SUPSemEventMultiGetResolution", (void *)(uintptr_t)SUPSemEventMultiGetResolution },
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238 | { "SUPSemEventMultiReset", (void *)(uintptr_t)SUPSemEventMultiReset },
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239 | { "SUPSemEventMultiSignal", (void *)(uintptr_t)SUPSemEventMultiSignal },
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240 | { "SUPSemEventMultiWait", (void *)(uintptr_t)SUPSemEventMultiWait },
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241 | { "SUPSemEventMultiWaitNoResume", (void *)(uintptr_t)SUPSemEventMultiWaitNoResume },
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242 | { "SUPSemEventMultiWaitNsAbsIntr", (void *)(uintptr_t)SUPSemEventMultiWaitNsAbsIntr },
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243 | { "SUPSemEventMultiWaitNsRelIntr", (void *)(uintptr_t)SUPSemEventMultiWaitNsRelIntr },
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244 | { "SUPSemEventSignal", (void *)(uintptr_t)SUPSemEventSignal },
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245 | { "SUPSemEventWait", (void *)(uintptr_t)SUPSemEventWait },
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246 | { "SUPSemEventWaitNoResume", (void *)(uintptr_t)SUPSemEventWaitNoResume },
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247 | { "SUPSemEventWaitNsAbsIntr", (void *)(uintptr_t)SUPSemEventWaitNsAbsIntr },
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248 | { "SUPSemEventWaitNsRelIntr", (void *)(uintptr_t)SUPSemEventWaitNsRelIntr },
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249 |
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250 | { "RTAssertAreQuiet", (void *)(uintptr_t)RTAssertAreQuiet },
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251 | { "RTAssertMayPanic", (void *)(uintptr_t)RTAssertMayPanic },
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252 | { "RTAssertMsg1", (void *)(uintptr_t)RTAssertMsg1 },
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253 | { "RTAssertMsg2AddV", (void *)(uintptr_t)RTAssertMsg2AddV },
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254 | { "RTAssertMsg2V", (void *)(uintptr_t)RTAssertMsg2V },
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255 | { "RTAssertSetMayPanic", (void *)(uintptr_t)RTAssertSetMayPanic },
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256 | { "RTAssertSetQuiet", (void *)(uintptr_t)RTAssertSetQuiet },
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257 | { "RTCrc32", (void *)(uintptr_t)RTCrc32 },
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258 | { "RTCrc32Finish", (void *)(uintptr_t)RTCrc32Finish },
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259 | { "RTCrc32Process", (void *)(uintptr_t)RTCrc32Process },
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260 | { "RTCrc32Start", (void *)(uintptr_t)RTCrc32Start },
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261 | { "RTErrConvertFromErrno", (void *)(uintptr_t)RTErrConvertFromErrno },
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262 | { "RTErrConvertToErrno", (void *)(uintptr_t)RTErrConvertToErrno },
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263 | { "RTHandleTableAllocWithCtx", (void *)(uintptr_t)RTHandleTableAllocWithCtx },
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264 | { "RTHandleTableCreate", (void *)(uintptr_t)RTHandleTableCreate },
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265 | { "RTHandleTableCreateEx", (void *)(uintptr_t)RTHandleTableCreateEx },
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266 | { "RTHandleTableDestroy", (void *)(uintptr_t)RTHandleTableDestroy },
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267 | { "RTHandleTableFreeWithCtx", (void *)(uintptr_t)RTHandleTableFreeWithCtx },
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268 | { "RTHandleTableLookupWithCtx", (void *)(uintptr_t)RTHandleTableLookupWithCtx },
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269 | { "RTLogDefaultInstance", (void *)(uintptr_t)RTLogDefaultInstance },
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270 | { "RTLogDefaultInstanceEx", (void *)(uintptr_t)RTLogDefaultInstanceEx },
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271 | { "RTLogGetDefaultInstance", (void *)(uintptr_t)RTLogGetDefaultInstance },
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272 | { "RTLogGetDefaultInstanceEx", (void *)(uintptr_t)RTLogGetDefaultInstanceEx },
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273 | { "RTLogLoggerExV", (void *)(uintptr_t)RTLogLoggerExV },
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274 | { "RTLogPrintfV", (void *)(uintptr_t)RTLogPrintfV },
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275 | { "RTLogRelGetDefaultInstance", (void *)(uintptr_t)RTLogRelGetDefaultInstance },
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276 | { "RTLogRelGetDefaultInstanceEx", (void *)(uintptr_t)RTLogRelGetDefaultInstanceEx },
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277 | { "RTLogSetDefaultInstanceThread", (void *)(uintptr_t)RTLogSetDefaultInstanceThread },
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278 | { "RTMemAllocExTag", (void *)(uintptr_t)RTMemAllocExTag },
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279 | { "RTMemAllocTag", (void *)(uintptr_t)RTMemAllocTag },
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280 | { "RTMemAllocVarTag", (void *)(uintptr_t)RTMemAllocVarTag },
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281 | { "RTMemAllocZTag", (void *)(uintptr_t)RTMemAllocZTag },
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282 | { "RTMemAllocZVarTag", (void *)(uintptr_t)RTMemAllocZVarTag },
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283 | { "RTMemDupExTag", (void *)(uintptr_t)RTMemDupExTag },
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284 | { "RTMemDupTag", (void *)(uintptr_t)RTMemDupTag },
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285 | { "RTMemFree", (void *)(uintptr_t)RTMemFree },
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286 | { "RTMemFreeEx", (void *)(uintptr_t)RTMemFreeEx },
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287 | { "RTMemReallocTag", (void *)(uintptr_t)RTMemReallocTag },
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288 | { "RTMpCpuId", (void *)(uintptr_t)RTMpCpuId },
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289 | { "RTMpCpuIdFromSetIndex", (void *)(uintptr_t)RTMpCpuIdFromSetIndex },
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290 | { "RTMpCpuIdToSetIndex", (void *)(uintptr_t)RTMpCpuIdToSetIndex },
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291 | { "RTMpCurSetIndex", (void *)(uintptr_t)RTMpCurSetIndex },
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292 | { "RTMpCurSetIndexAndId", (void *)(uintptr_t)RTMpCurSetIndexAndId },
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293 | { "RTMpGetArraySize", (void *)(uintptr_t)RTMpGetArraySize },
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294 | { "RTMpGetCount", (void *)(uintptr_t)RTMpGetCount },
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295 | { "RTMpGetMaxCpuId", (void *)(uintptr_t)RTMpGetMaxCpuId },
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296 | { "RTMpGetOnlineCount", (void *)(uintptr_t)RTMpGetOnlineCount },
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297 | { "RTMpGetOnlineSet", (void *)(uintptr_t)RTMpGetOnlineSet },
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298 | { "RTMpGetSet", (void *)(uintptr_t)RTMpGetSet },
|
---|
299 | { "RTMpIsCpuOnline", (void *)(uintptr_t)RTMpIsCpuOnline },
|
---|
300 | { "RTMpIsCpuPossible", (void *)(uintptr_t)RTMpIsCpuPossible },
|
---|
301 | { "RTMpIsCpuWorkPending", (void *)(uintptr_t)RTMpIsCpuWorkPending },
|
---|
302 | { "RTMpNotificationDeregister", (void *)(uintptr_t)RTMpNotificationDeregister },
|
---|
303 | { "RTMpNotificationRegister", (void *)(uintptr_t)RTMpNotificationRegister },
|
---|
304 | { "RTMpOnAll", (void *)(uintptr_t)RTMpOnAll },
|
---|
305 | { "RTMpOnOthers", (void *)(uintptr_t)RTMpOnOthers },
|
---|
306 | { "RTMpOnSpecific", (void *)(uintptr_t)RTMpOnSpecific },
|
---|
307 | { "RTMpPokeCpu", (void *)(uintptr_t)RTMpPokeCpu },
|
---|
308 | { "RTNetIPv4AddDataChecksum", (void *)(uintptr_t)RTNetIPv4AddDataChecksum },
|
---|
309 | { "RTNetIPv4AddTCPChecksum", (void *)(uintptr_t)RTNetIPv4AddTCPChecksum },
|
---|
310 | { "RTNetIPv4AddUDPChecksum", (void *)(uintptr_t)RTNetIPv4AddUDPChecksum },
|
---|
311 | { "RTNetIPv4FinalizeChecksum", (void *)(uintptr_t)RTNetIPv4FinalizeChecksum },
|
---|
312 | { "RTNetIPv4HdrChecksum", (void *)(uintptr_t)RTNetIPv4HdrChecksum },
|
---|
313 | { "RTNetIPv4IsDHCPValid", (void *)(uintptr_t)RTNetIPv4IsDHCPValid },
|
---|
314 | { "RTNetIPv4IsHdrValid", (void *)(uintptr_t)RTNetIPv4IsHdrValid },
|
---|
315 | { "RTNetIPv4IsTCPSizeValid", (void *)(uintptr_t)RTNetIPv4IsTCPSizeValid },
|
---|
316 | { "RTNetIPv4IsTCPValid", (void *)(uintptr_t)RTNetIPv4IsTCPValid },
|
---|
317 | { "RTNetIPv4IsUDPSizeValid", (void *)(uintptr_t)RTNetIPv4IsUDPSizeValid },
|
---|
318 | { "RTNetIPv4IsUDPValid", (void *)(uintptr_t)RTNetIPv4IsUDPValid },
|
---|
319 | { "RTNetIPv4PseudoChecksum", (void *)(uintptr_t)RTNetIPv4PseudoChecksum },
|
---|
320 | { "RTNetIPv4PseudoChecksumBits", (void *)(uintptr_t)RTNetIPv4PseudoChecksumBits },
|
---|
321 | { "RTNetIPv4TCPChecksum", (void *)(uintptr_t)RTNetIPv4TCPChecksum },
|
---|
322 | { "RTNetIPv4UDPChecksum", (void *)(uintptr_t)RTNetIPv4UDPChecksum },
|
---|
323 | { "RTNetIPv6PseudoChecksum", (void *)(uintptr_t)RTNetIPv6PseudoChecksum },
|
---|
324 | { "RTNetIPv6PseudoChecksumBits", (void *)(uintptr_t)RTNetIPv6PseudoChecksumBits },
|
---|
325 | { "RTNetIPv6PseudoChecksumEx", (void *)(uintptr_t)RTNetIPv6PseudoChecksumEx },
|
---|
326 | { "RTNetTCPChecksum", (void *)(uintptr_t)RTNetTCPChecksum },
|
---|
327 | { "RTNetUDPChecksum", (void *)(uintptr_t)RTNetUDPChecksum },
|
---|
328 | { "RTPowerNotificationDeregister", (void *)(uintptr_t)RTPowerNotificationDeregister },
|
---|
329 | { "RTPowerNotificationRegister", (void *)(uintptr_t)RTPowerNotificationRegister },
|
---|
330 | { "RTProcSelf", (void *)(uintptr_t)RTProcSelf },
|
---|
331 | { "RTR0AssertPanicSystem", (void *)(uintptr_t)RTR0AssertPanicSystem },
|
---|
332 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS)
|
---|
333 | { "RTR0DbgKrnlInfoOpen", (void *)(uintptr_t)RTR0DbgKrnlInfoOpen }, /* only-darwin, only-solaris */
|
---|
334 | { "RTR0DbgKrnlInfoQueryMember", (void *)(uintptr_t)RTR0DbgKrnlInfoQueryMember }, /* only-darwin, only-solaris */
|
---|
335 | # if defined(RT_OS_SOLARIS)
|
---|
336 | { "RTR0DbgKrnlInfoQuerySize", (void *)(uintptr_t)RTR0DbgKrnlInfoQuerySize }, /* only-solaris */
|
---|
337 | # endif
|
---|
338 | { "RTR0DbgKrnlInfoQuerySymbol", (void *)(uintptr_t)RTR0DbgKrnlInfoQuerySymbol }, /* only-darwin, only-solaris */
|
---|
339 | { "RTR0DbgKrnlInfoRelease", (void *)(uintptr_t)RTR0DbgKrnlInfoRelease }, /* only-darwin, only-solaris */
|
---|
340 | { "RTR0DbgKrnlInfoRetain", (void *)(uintptr_t)RTR0DbgKrnlInfoRetain }, /* only-darwin, only-solaris */
|
---|
341 | #endif
|
---|
342 | { "RTR0MemAreKrnlAndUsrDifferent", (void *)(uintptr_t)RTR0MemAreKrnlAndUsrDifferent },
|
---|
343 | { "RTR0MemKernelIsValidAddr", (void *)(uintptr_t)RTR0MemKernelIsValidAddr },
|
---|
344 | { "RTR0MemKernelCopyFrom", (void *)(uintptr_t)RTR0MemKernelCopyFrom },
|
---|
345 | { "RTR0MemKernelCopyTo", (void *)(uintptr_t)RTR0MemKernelCopyTo },
|
---|
346 | { "RTR0MemObjAddress", (void *)(uintptr_t)RTR0MemObjAddress },
|
---|
347 | { "RTR0MemObjAddressR3", (void *)(uintptr_t)RTR0MemObjAddressR3 },
|
---|
348 | { "RTR0MemObjAllocContTag", (void *)(uintptr_t)RTR0MemObjAllocContTag },
|
---|
349 | { "RTR0MemObjAllocLowTag", (void *)(uintptr_t)RTR0MemObjAllocLowTag },
|
---|
350 | { "RTR0MemObjAllocPageTag", (void *)(uintptr_t)RTR0MemObjAllocPageTag },
|
---|
351 | { "RTR0MemObjAllocPhysExTag", (void *)(uintptr_t)RTR0MemObjAllocPhysExTag },
|
---|
352 | { "RTR0MemObjAllocPhysNCTag", (void *)(uintptr_t)RTR0MemObjAllocPhysNCTag },
|
---|
353 | { "RTR0MemObjAllocPhysTag", (void *)(uintptr_t)RTR0MemObjAllocPhysTag },
|
---|
354 | { "RTR0MemObjEnterPhysTag", (void *)(uintptr_t)RTR0MemObjEnterPhysTag },
|
---|
355 | { "RTR0MemObjFree", (void *)(uintptr_t)RTR0MemObjFree },
|
---|
356 | { "RTR0MemObjGetPagePhysAddr", (void *)(uintptr_t)RTR0MemObjGetPagePhysAddr },
|
---|
357 | { "RTR0MemObjIsMapping", (void *)(uintptr_t)RTR0MemObjIsMapping },
|
---|
358 | { "RTR0MemObjLockUserTag", (void *)(uintptr_t)RTR0MemObjLockUserTag },
|
---|
359 | { "RTR0MemObjMapKernelExTag", (void *)(uintptr_t)RTR0MemObjMapKernelExTag },
|
---|
360 | { "RTR0MemObjMapKernelTag", (void *)(uintptr_t)RTR0MemObjMapKernelTag },
|
---|
361 | { "RTR0MemObjMapUserTag", (void *)(uintptr_t)RTR0MemObjMapUserTag },
|
---|
362 | { "RTR0MemObjProtect", (void *)(uintptr_t)RTR0MemObjProtect },
|
---|
363 | { "RTR0MemObjSize", (void *)(uintptr_t)RTR0MemObjSize },
|
---|
364 | { "RTR0MemUserCopyFrom", (void *)(uintptr_t)RTR0MemUserCopyFrom },
|
---|
365 | { "RTR0MemUserCopyTo", (void *)(uintptr_t)RTR0MemUserCopyTo },
|
---|
366 | { "RTR0MemUserIsValidAddr", (void *)(uintptr_t)RTR0MemUserIsValidAddr },
|
---|
367 | { "RTR0ProcHandleSelf", (void *)(uintptr_t)RTR0ProcHandleSelf },
|
---|
368 | { "RTSemEventCreate", (void *)(uintptr_t)RTSemEventCreate },
|
---|
369 | { "RTSemEventDestroy", (void *)(uintptr_t)RTSemEventDestroy },
|
---|
370 | { "RTSemEventGetResolution", (void *)(uintptr_t)RTSemEventGetResolution },
|
---|
371 | { "RTSemEventMultiCreate", (void *)(uintptr_t)RTSemEventMultiCreate },
|
---|
372 | { "RTSemEventMultiDestroy", (void *)(uintptr_t)RTSemEventMultiDestroy },
|
---|
373 | { "RTSemEventMultiGetResolution", (void *)(uintptr_t)RTSemEventMultiGetResolution },
|
---|
374 | { "RTSemEventMultiReset", (void *)(uintptr_t)RTSemEventMultiReset },
|
---|
375 | { "RTSemEventMultiSignal", (void *)(uintptr_t)RTSemEventMultiSignal },
|
---|
376 | { "RTSemEventMultiWait", (void *)(uintptr_t)RTSemEventMultiWait },
|
---|
377 | { "RTSemEventMultiWaitEx", (void *)(uintptr_t)RTSemEventMultiWaitEx },
|
---|
378 | { "RTSemEventMultiWaitExDebug", (void *)(uintptr_t)RTSemEventMultiWaitExDebug },
|
---|
379 | { "RTSemEventMultiWaitNoResume", (void *)(uintptr_t)RTSemEventMultiWaitNoResume },
|
---|
380 | { "RTSemEventSignal", (void *)(uintptr_t)RTSemEventSignal },
|
---|
381 | { "RTSemEventWait", (void *)(uintptr_t)RTSemEventWait },
|
---|
382 | { "RTSemEventWaitEx", (void *)(uintptr_t)RTSemEventWaitEx },
|
---|
383 | { "RTSemEventWaitExDebug", (void *)(uintptr_t)RTSemEventWaitExDebug },
|
---|
384 | { "RTSemEventWaitNoResume", (void *)(uintptr_t)RTSemEventWaitNoResume },
|
---|
385 | { "RTSemFastMutexCreate", (void *)(uintptr_t)RTSemFastMutexCreate },
|
---|
386 | { "RTSemFastMutexDestroy", (void *)(uintptr_t)RTSemFastMutexDestroy },
|
---|
387 | { "RTSemFastMutexRelease", (void *)(uintptr_t)RTSemFastMutexRelease },
|
---|
388 | { "RTSemFastMutexRequest", (void *)(uintptr_t)RTSemFastMutexRequest },
|
---|
389 | { "RTSemMutexCreate", (void *)(uintptr_t)RTSemMutexCreate },
|
---|
390 | { "RTSemMutexDestroy", (void *)(uintptr_t)RTSemMutexDestroy },
|
---|
391 | { "RTSemMutexRelease", (void *)(uintptr_t)RTSemMutexRelease },
|
---|
392 | { "RTSemMutexRequest", (void *)(uintptr_t)RTSemMutexRequest },
|
---|
393 | { "RTSemMutexRequestDebug", (void *)(uintptr_t)RTSemMutexRequestDebug },
|
---|
394 | { "RTSemMutexRequestNoResume", (void *)(uintptr_t)RTSemMutexRequestNoResume },
|
---|
395 | { "RTSemMutexRequestNoResumeDebug", (void *)(uintptr_t)RTSemMutexRequestNoResumeDebug },
|
---|
396 | { "RTSpinlockAcquire", (void *)(uintptr_t)RTSpinlockAcquire },
|
---|
397 | { "RTSpinlockCreate", (void *)(uintptr_t)RTSpinlockCreate },
|
---|
398 | { "RTSpinlockDestroy", (void *)(uintptr_t)RTSpinlockDestroy },
|
---|
399 | { "RTSpinlockRelease", (void *)(uintptr_t)RTSpinlockRelease },
|
---|
400 | { "RTStrCopy", (void *)(uintptr_t)RTStrCopy },
|
---|
401 | { "RTStrDupTag", (void *)(uintptr_t)RTStrDupTag },
|
---|
402 | { "RTStrFormat", (void *)(uintptr_t)RTStrFormat },
|
---|
403 | { "RTStrFormatNumber", (void *)(uintptr_t)RTStrFormatNumber },
|
---|
404 | { "RTStrFormatTypeDeregister", (void *)(uintptr_t)RTStrFormatTypeDeregister },
|
---|
405 | { "RTStrFormatTypeRegister", (void *)(uintptr_t)RTStrFormatTypeRegister },
|
---|
406 | { "RTStrFormatTypeSetUser", (void *)(uintptr_t)RTStrFormatTypeSetUser },
|
---|
407 | { "RTStrFormatV", (void *)(uintptr_t)RTStrFormatV },
|
---|
408 | { "RTStrFree", (void *)(uintptr_t)RTStrFree },
|
---|
409 | { "RTStrNCmp", (void *)(uintptr_t)RTStrNCmp },
|
---|
410 | { "RTStrPrintf", (void *)(uintptr_t)RTStrPrintf },
|
---|
411 | { "RTStrPrintfEx", (void *)(uintptr_t)RTStrPrintfEx },
|
---|
412 | { "RTStrPrintfExV", (void *)(uintptr_t)RTStrPrintfExV },
|
---|
413 | { "RTStrPrintfV", (void *)(uintptr_t)RTStrPrintfV },
|
---|
414 | { "RTThreadCreate", (void *)(uintptr_t)RTThreadCreate },
|
---|
415 | { "RTThreadCtxHookIsEnabled", (void *)(uintptr_t)RTThreadCtxHookIsEnabled },
|
---|
416 | { "RTThreadCtxHookCreate", (void *)(uintptr_t)RTThreadCtxHookCreate },
|
---|
417 | { "RTThreadCtxHookDestroy", (void *)(uintptr_t)RTThreadCtxHookDestroy },
|
---|
418 | { "RTThreadCtxHookDisable", (void *)(uintptr_t)RTThreadCtxHookDisable },
|
---|
419 | { "RTThreadCtxHookEnable", (void *)(uintptr_t)RTThreadCtxHookEnable },
|
---|
420 | { "RTThreadGetName", (void *)(uintptr_t)RTThreadGetName },
|
---|
421 | { "RTThreadGetNative", (void *)(uintptr_t)RTThreadGetNative },
|
---|
422 | { "RTThreadGetType", (void *)(uintptr_t)RTThreadGetType },
|
---|
423 | { "RTThreadIsInInterrupt", (void *)(uintptr_t)RTThreadIsInInterrupt },
|
---|
424 | { "RTThreadNativeSelf", (void *)(uintptr_t)RTThreadNativeSelf },
|
---|
425 | { "RTThreadPreemptDisable", (void *)(uintptr_t)RTThreadPreemptDisable },
|
---|
426 | { "RTThreadPreemptIsEnabled", (void *)(uintptr_t)RTThreadPreemptIsEnabled },
|
---|
427 | { "RTThreadPreemptIsPending", (void *)(uintptr_t)RTThreadPreemptIsPending },
|
---|
428 | { "RTThreadPreemptIsPendingTrusty", (void *)(uintptr_t)RTThreadPreemptIsPendingTrusty },
|
---|
429 | { "RTThreadPreemptIsPossible", (void *)(uintptr_t)RTThreadPreemptIsPossible },
|
---|
430 | { "RTThreadPreemptRestore", (void *)(uintptr_t)RTThreadPreemptRestore },
|
---|
431 | { "RTThreadSelf", (void *)(uintptr_t)RTThreadSelf },
|
---|
432 | { "RTThreadSelfName", (void *)(uintptr_t)RTThreadSelfName },
|
---|
433 | { "RTThreadSleep", (void *)(uintptr_t)RTThreadSleep },
|
---|
434 | { "RTThreadUserReset", (void *)(uintptr_t)RTThreadUserReset },
|
---|
435 | { "RTThreadUserSignal", (void *)(uintptr_t)RTThreadUserSignal },
|
---|
436 | { "RTThreadUserWait", (void *)(uintptr_t)RTThreadUserWait },
|
---|
437 | { "RTThreadUserWaitNoResume", (void *)(uintptr_t)RTThreadUserWaitNoResume },
|
---|
438 | { "RTThreadWait", (void *)(uintptr_t)RTThreadWait },
|
---|
439 | { "RTThreadWaitNoResume", (void *)(uintptr_t)RTThreadWaitNoResume },
|
---|
440 | { "RTThreadYield", (void *)(uintptr_t)RTThreadYield },
|
---|
441 | { "RTTimeMilliTS", (void *)(uintptr_t)RTTimeMilliTS },
|
---|
442 | { "RTTimeNanoTS", (void *)(uintptr_t)RTTimeNanoTS },
|
---|
443 | { "RTTimeNow", (void *)(uintptr_t)RTTimeNow },
|
---|
444 | { "RTTimerCanDoHighResolution", (void *)(uintptr_t)RTTimerCanDoHighResolution },
|
---|
445 | { "RTTimerChangeInterval", (void *)(uintptr_t)RTTimerChangeInterval },
|
---|
446 | { "RTTimerCreate", (void *)(uintptr_t)RTTimerCreate },
|
---|
447 | { "RTTimerCreateEx", (void *)(uintptr_t)RTTimerCreateEx },
|
---|
448 | { "RTTimerDestroy", (void *)(uintptr_t)RTTimerDestroy },
|
---|
449 | { "RTTimerGetSystemGranularity", (void *)(uintptr_t)RTTimerGetSystemGranularity },
|
---|
450 | { "RTTimerReleaseSystemGranularity", (void *)(uintptr_t)RTTimerReleaseSystemGranularity },
|
---|
451 | { "RTTimerRequestSystemGranularity", (void *)(uintptr_t)RTTimerRequestSystemGranularity },
|
---|
452 | { "RTTimerStart", (void *)(uintptr_t)RTTimerStart },
|
---|
453 | { "RTTimerStop", (void *)(uintptr_t)RTTimerStop },
|
---|
454 | { "RTTimeSystemMilliTS", (void *)(uintptr_t)RTTimeSystemMilliTS },
|
---|
455 | { "RTTimeSystemNanoTS", (void *)(uintptr_t)RTTimeSystemNanoTS },
|
---|
456 | { "RTUuidCompare", (void *)(uintptr_t)RTUuidCompare },
|
---|
457 | { "RTUuidCompareStr", (void *)(uintptr_t)RTUuidCompareStr },
|
---|
458 | { "RTUuidFromStr", (void *)(uintptr_t)RTUuidFromStr },
|
---|
459 | /* SED: END */
|
---|
460 | };
|
---|
461 |
|
---|
462 | #if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS) || defined(RT_OS_FREEBSD)
|
---|
463 | /**
|
---|
464 | * Drag in the rest of IRPT since we share it with the
|
---|
465 | * rest of the kernel modules on darwin.
|
---|
466 | */
|
---|
467 | PFNRT g_apfnVBoxDrvIPRTDeps[] =
|
---|
468 | {
|
---|
469 | /* VBoxNetAdp */
|
---|
470 | (PFNRT)RTRandBytes,
|
---|
471 | /* VBoxUSB */
|
---|
472 | (PFNRT)RTPathStripFilename,
|
---|
473 | (PFNRT)RTHandleTableAlloc,
|
---|
474 | #if !defined(RT_OS_FREEBSD)
|
---|
475 | (PFNRT)RTStrPurgeEncoding,
|
---|
476 | #endif
|
---|
477 | NULL
|
---|
478 | };
|
---|
479 | #endif /* RT_OS_DARWIN || RT_OS_SOLARIS || RT_OS_SOLARIS */
|
---|
480 |
|
---|
481 |
|
---|
482 | /**
|
---|
483 | * Initializes the device extentsion structure.
|
---|
484 | *
|
---|
485 | * @returns IPRT status code.
|
---|
486 | * @param pDevExt The device extension to initialize.
|
---|
487 | * @param cbSession The size of the session structure. The size of
|
---|
488 | * SUPDRVSESSION may be smaller when SUPDRV_AGNOSTIC is
|
---|
489 | * defined because we're skipping the OS specific members
|
---|
490 | * then.
|
---|
491 | */
|
---|
492 | int VBOXCALL supdrvInitDevExt(PSUPDRVDEVEXT pDevExt, size_t cbSession)
|
---|
493 | {
|
---|
494 | int rc;
|
---|
495 |
|
---|
496 | #ifdef SUPDRV_WITH_RELEASE_LOGGER
|
---|
497 | /*
|
---|
498 | * Create the release log.
|
---|
499 | */
|
---|
500 | static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
|
---|
501 | PRTLOGGER pRelLogger;
|
---|
502 | rc = RTLogCreate(&pRelLogger, 0 /* fFlags */, "all",
|
---|
503 | "VBOX_RELEASE_LOG", RT_ELEMENTS(s_apszGroups), s_apszGroups, RTLOGDEST_STDOUT | RTLOGDEST_DEBUGGER, NULL);
|
---|
504 | if (RT_SUCCESS(rc))
|
---|
505 | RTLogRelSetDefaultInstance(pRelLogger);
|
---|
506 | /** @todo Add native hook for getting logger config parameters and setting
|
---|
507 | * them. On linux we should use the module parameter stuff... */
|
---|
508 | #endif
|
---|
509 |
|
---|
510 | /*
|
---|
511 | * Initialize it.
|
---|
512 | */
|
---|
513 | memset(pDevExt, 0, sizeof(*pDevExt)); /* Does not wipe OS specific tail section of the structure. */
|
---|
514 | pDevExt->Spinlock = NIL_RTSPINLOCK;
|
---|
515 | pDevExt->hGipSpinlock = NIL_RTSPINLOCK;
|
---|
516 | pDevExt->hSessionHashTabSpinlock = NIL_RTSPINLOCK;
|
---|
517 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
518 | pDevExt->mtxLdr = NIL_RTSEMMUTEX;
|
---|
519 | #else
|
---|
520 | pDevExt->mtxLdr = NIL_RTSEMFASTMUTEX;
|
---|
521 | #endif
|
---|
522 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
523 | pDevExt->mtxGip = NIL_RTSEMMUTEX;
|
---|
524 | pDevExt->mtxTscDelta = NIL_RTSEMMUTEX;
|
---|
525 | #else
|
---|
526 | pDevExt->mtxGip = NIL_RTSEMFASTMUTEX;
|
---|
527 | pDevExt->mtxTscDelta = NIL_RTSEMFASTMUTEX;
|
---|
528 | #endif
|
---|
529 |
|
---|
530 | rc = RTSpinlockCreate(&pDevExt->Spinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "SUPDrvDevExt");
|
---|
531 | if (RT_SUCCESS(rc))
|
---|
532 | rc = RTSpinlockCreate(&pDevExt->hGipSpinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "SUPDrvGip");
|
---|
533 | if (RT_SUCCESS(rc))
|
---|
534 | rc = RTSpinlockCreate(&pDevExt->hSessionHashTabSpinlock, RTSPINLOCK_FLAGS_INTERRUPT_SAFE, "SUPDrvSession");
|
---|
535 |
|
---|
536 | if (RT_SUCCESS(rc))
|
---|
537 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
538 | rc = RTSemMutexCreate(&pDevExt->mtxLdr);
|
---|
539 | #else
|
---|
540 | rc = RTSemFastMutexCreate(&pDevExt->mtxLdr);
|
---|
541 | #endif
|
---|
542 | if (RT_SUCCESS(rc))
|
---|
543 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
544 | rc = RTSemMutexCreate(&pDevExt->mtxTscDelta);
|
---|
545 | #else
|
---|
546 | rc = RTSemFastMutexCreate(&pDevExt->mtxTscDelta);
|
---|
547 | #endif
|
---|
548 | if (RT_SUCCESS(rc))
|
---|
549 | {
|
---|
550 | rc = RTSemFastMutexCreate(&pDevExt->mtxComponentFactory);
|
---|
551 | if (RT_SUCCESS(rc))
|
---|
552 | {
|
---|
553 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
554 | rc = RTSemMutexCreate(&pDevExt->mtxGip);
|
---|
555 | #else
|
---|
556 | rc = RTSemFastMutexCreate(&pDevExt->mtxGip);
|
---|
557 | #endif
|
---|
558 | if (RT_SUCCESS(rc))
|
---|
559 | {
|
---|
560 | rc = supdrvGipCreate(pDevExt);
|
---|
561 | if (RT_SUCCESS(rc))
|
---|
562 | {
|
---|
563 | rc = supdrvTracerInit(pDevExt);
|
---|
564 | if (RT_SUCCESS(rc))
|
---|
565 | {
|
---|
566 | pDevExt->pLdrInitImage = NULL;
|
---|
567 | pDevExt->hLdrInitThread = NIL_RTNATIVETHREAD;
|
---|
568 | pDevExt->u32Cookie = BIRD; /** @todo make this random? */
|
---|
569 | pDevExt->cbSession = (uint32_t)cbSession;
|
---|
570 |
|
---|
571 | /*
|
---|
572 | * Fixup the absolute symbols.
|
---|
573 | *
|
---|
574 | * Because of the table indexing assumptions we'll have a little #ifdef orgy
|
---|
575 | * here rather than distributing this to OS specific files. At least for now.
|
---|
576 | */
|
---|
577 | #ifdef RT_OS_DARWIN
|
---|
578 | # if ARCH_BITS == 32
|
---|
579 | if (SUPR0GetPagingMode() >= SUPPAGINGMODE_AMD64)
|
---|
580 | {
|
---|
581 | g_aFunctions[0].pfn = (void *)1; /* SUPR0AbsIs64bit */
|
---|
582 | g_aFunctions[1].pfn = (void *)0x80; /* SUPR0Abs64bitKernelCS - KERNEL64_CS, seg.h */
|
---|
583 | g_aFunctions[2].pfn = (void *)0x88; /* SUPR0Abs64bitKernelSS - KERNEL64_SS, seg.h */
|
---|
584 | g_aFunctions[3].pfn = (void *)0x88; /* SUPR0Abs64bitKernelDS - KERNEL64_SS, seg.h */
|
---|
585 | }
|
---|
586 | else
|
---|
587 | g_aFunctions[0].pfn = g_aFunctions[1].pfn = g_aFunctions[2].pfn = g_aFunctions[3].pfn = (void *)0;
|
---|
588 | g_aFunctions[4].pfn = (void *)0x08; /* SUPR0AbsKernelCS - KERNEL_CS, seg.h */
|
---|
589 | g_aFunctions[5].pfn = (void *)0x10; /* SUPR0AbsKernelSS - KERNEL_DS, seg.h */
|
---|
590 | g_aFunctions[6].pfn = (void *)0x10; /* SUPR0AbsKernelDS - KERNEL_DS, seg.h */
|
---|
591 | g_aFunctions[7].pfn = (void *)0x10; /* SUPR0AbsKernelES - KERNEL_DS, seg.h */
|
---|
592 | g_aFunctions[8].pfn = (void *)0x10; /* SUPR0AbsKernelFS - KERNEL_DS, seg.h */
|
---|
593 | g_aFunctions[9].pfn = (void *)0x48; /* SUPR0AbsKernelGS - CPU_DATA_GS, seg.h */
|
---|
594 | # else /* 64-bit darwin: */
|
---|
595 | g_aFunctions[0].pfn = (void *)1; /* SUPR0AbsIs64bit */
|
---|
596 | g_aFunctions[1].pfn = (void *)(uintptr_t)ASMGetCS(); /* SUPR0Abs64bitKernelCS */
|
---|
597 | g_aFunctions[2].pfn = (void *)(uintptr_t)ASMGetSS(); /* SUPR0Abs64bitKernelSS */
|
---|
598 | g_aFunctions[3].pfn = (void *)0; /* SUPR0Abs64bitKernelDS */
|
---|
599 | g_aFunctions[4].pfn = (void *)(uintptr_t)ASMGetCS(); /* SUPR0AbsKernelCS */
|
---|
600 | g_aFunctions[5].pfn = (void *)(uintptr_t)ASMGetSS(); /* SUPR0AbsKernelSS */
|
---|
601 | g_aFunctions[6].pfn = (void *)0; /* SUPR0AbsKernelDS */
|
---|
602 | g_aFunctions[7].pfn = (void *)0; /* SUPR0AbsKernelES */
|
---|
603 | g_aFunctions[8].pfn = (void *)0; /* SUPR0AbsKernelFS */
|
---|
604 | g_aFunctions[9].pfn = (void *)0; /* SUPR0AbsKernelGS */
|
---|
605 |
|
---|
606 | # endif
|
---|
607 | #else /* !RT_OS_DARWIN */
|
---|
608 | # if ARCH_BITS == 64
|
---|
609 | g_aFunctions[0].pfn = (void *)1; /* SUPR0AbsIs64bit */
|
---|
610 | g_aFunctions[1].pfn = (void *)(uintptr_t)ASMGetCS(); /* SUPR0Abs64bitKernelCS */
|
---|
611 | g_aFunctions[2].pfn = (void *)(uintptr_t)ASMGetSS(); /* SUPR0Abs64bitKernelSS */
|
---|
612 | g_aFunctions[3].pfn = (void *)(uintptr_t)ASMGetDS(); /* SUPR0Abs64bitKernelDS */
|
---|
613 | # else
|
---|
614 | g_aFunctions[0].pfn = g_aFunctions[1].pfn = g_aFunctions[2].pfn = g_aFunctions[3].pfn = (void *)0;
|
---|
615 | # endif
|
---|
616 | g_aFunctions[4].pfn = (void *)(uintptr_t)ASMGetCS(); /* SUPR0AbsKernelCS */
|
---|
617 | g_aFunctions[5].pfn = (void *)(uintptr_t)ASMGetSS(); /* SUPR0AbsKernelSS */
|
---|
618 | g_aFunctions[6].pfn = (void *)(uintptr_t)ASMGetDS(); /* SUPR0AbsKernelDS */
|
---|
619 | g_aFunctions[7].pfn = (void *)(uintptr_t)ASMGetES(); /* SUPR0AbsKernelES */
|
---|
620 | g_aFunctions[8].pfn = (void *)(uintptr_t)ASMGetFS(); /* SUPR0AbsKernelFS */
|
---|
621 | g_aFunctions[9].pfn = (void *)(uintptr_t)ASMGetGS(); /* SUPR0AbsKernelGS */
|
---|
622 | #endif /* !RT_OS_DARWIN */
|
---|
623 | return VINF_SUCCESS;
|
---|
624 | }
|
---|
625 |
|
---|
626 | supdrvGipDestroy(pDevExt);
|
---|
627 | }
|
---|
628 |
|
---|
629 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
630 | RTSemMutexDestroy(pDevExt->mtxGip);
|
---|
631 | pDevExt->mtxGip = NIL_RTSEMMUTEX;
|
---|
632 | #else
|
---|
633 | RTSemFastMutexDestroy(pDevExt->mtxGip);
|
---|
634 | pDevExt->mtxGip = NIL_RTSEMFASTMUTEX;
|
---|
635 | #endif
|
---|
636 | }
|
---|
637 | RTSemFastMutexDestroy(pDevExt->mtxComponentFactory);
|
---|
638 | pDevExt->mtxComponentFactory = NIL_RTSEMFASTMUTEX;
|
---|
639 | }
|
---|
640 | }
|
---|
641 |
|
---|
642 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
643 | RTSemMutexDestroy(pDevExt->mtxTscDelta);
|
---|
644 | pDevExt->mtxTscDelta = NIL_RTSEMMUTEX;
|
---|
645 | #else
|
---|
646 | RTSemFastMutexDestroy(pDevExt->mtxTscDelta);
|
---|
647 | pDevExt->mtxTscDelta = NIL_RTSEMFASTMUTEX;
|
---|
648 | #endif
|
---|
649 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
650 | RTSemMutexDestroy(pDevExt->mtxLdr);
|
---|
651 | pDevExt->mtxLdr = NIL_RTSEMMUTEX;
|
---|
652 | #else
|
---|
653 | RTSemFastMutexDestroy(pDevExt->mtxLdr);
|
---|
654 | pDevExt->mtxLdr = NIL_RTSEMFASTMUTEX;
|
---|
655 | #endif
|
---|
656 | RTSpinlockDestroy(pDevExt->Spinlock);
|
---|
657 | pDevExt->Spinlock = NIL_RTSPINLOCK;
|
---|
658 | RTSpinlockDestroy(pDevExt->hGipSpinlock);
|
---|
659 | pDevExt->hGipSpinlock = NIL_RTSPINLOCK;
|
---|
660 | RTSpinlockDestroy(pDevExt->hSessionHashTabSpinlock);
|
---|
661 | pDevExt->hSessionHashTabSpinlock = NIL_RTSPINLOCK;
|
---|
662 |
|
---|
663 | #ifdef SUPDRV_WITH_RELEASE_LOGGER
|
---|
664 | RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
|
---|
665 | RTLogDestroy(RTLogSetDefaultInstance(NULL));
|
---|
666 | #endif
|
---|
667 |
|
---|
668 | return rc;
|
---|
669 | }
|
---|
670 |
|
---|
671 |
|
---|
672 | /**
|
---|
673 | * Delete the device extension (e.g. cleanup members).
|
---|
674 | *
|
---|
675 | * @param pDevExt The device extension to delete.
|
---|
676 | */
|
---|
677 | void VBOXCALL supdrvDeleteDevExt(PSUPDRVDEVEXT pDevExt)
|
---|
678 | {
|
---|
679 | PSUPDRVOBJ pObj;
|
---|
680 | PSUPDRVUSAGE pUsage;
|
---|
681 |
|
---|
682 | /*
|
---|
683 | * Kill mutexes and spinlocks.
|
---|
684 | */
|
---|
685 | #ifdef SUPDRV_USE_MUTEX_FOR_GIP
|
---|
686 | RTSemMutexDestroy(pDevExt->mtxGip);
|
---|
687 | pDevExt->mtxGip = NIL_RTSEMMUTEX;
|
---|
688 | RTSemMutexDestroy(pDevExt->mtxTscDelta);
|
---|
689 | pDevExt->mtxTscDelta = NIL_RTSEMMUTEX;
|
---|
690 | #else
|
---|
691 | RTSemFastMutexDestroy(pDevExt->mtxGip);
|
---|
692 | pDevExt->mtxGip = NIL_RTSEMFASTMUTEX;
|
---|
693 | RTSemFastMutexDestroy(pDevExt->mtxTscDelta);
|
---|
694 | pDevExt->mtxTscDelta = NIL_RTSEMFASTMUTEX;
|
---|
695 | #endif
|
---|
696 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
697 | RTSemMutexDestroy(pDevExt->mtxLdr);
|
---|
698 | pDevExt->mtxLdr = NIL_RTSEMMUTEX;
|
---|
699 | #else
|
---|
700 | RTSemFastMutexDestroy(pDevExt->mtxLdr);
|
---|
701 | pDevExt->mtxLdr = NIL_RTSEMFASTMUTEX;
|
---|
702 | #endif
|
---|
703 | RTSpinlockDestroy(pDevExt->Spinlock);
|
---|
704 | pDevExt->Spinlock = NIL_RTSPINLOCK;
|
---|
705 | RTSemFastMutexDestroy(pDevExt->mtxComponentFactory);
|
---|
706 | pDevExt->mtxComponentFactory = NIL_RTSEMFASTMUTEX;
|
---|
707 | RTSpinlockDestroy(pDevExt->hSessionHashTabSpinlock);
|
---|
708 | pDevExt->hSessionHashTabSpinlock = NIL_RTSPINLOCK;
|
---|
709 |
|
---|
710 | /*
|
---|
711 | * Free lists.
|
---|
712 | */
|
---|
713 | /* objects. */
|
---|
714 | pObj = pDevExt->pObjs;
|
---|
715 | Assert(!pObj); /* (can trigger on forced unloads) */
|
---|
716 | pDevExt->pObjs = NULL;
|
---|
717 | while (pObj)
|
---|
718 | {
|
---|
719 | void *pvFree = pObj;
|
---|
720 | pObj = pObj->pNext;
|
---|
721 | RTMemFree(pvFree);
|
---|
722 | }
|
---|
723 |
|
---|
724 | /* usage records. */
|
---|
725 | pUsage = pDevExt->pUsageFree;
|
---|
726 | pDevExt->pUsageFree = NULL;
|
---|
727 | while (pUsage)
|
---|
728 | {
|
---|
729 | void *pvFree = pUsage;
|
---|
730 | pUsage = pUsage->pNext;
|
---|
731 | RTMemFree(pvFree);
|
---|
732 | }
|
---|
733 |
|
---|
734 | /* kill the GIP. */
|
---|
735 | supdrvGipDestroy(pDevExt);
|
---|
736 | RTSpinlockDestroy(pDevExt->hGipSpinlock);
|
---|
737 | pDevExt->hGipSpinlock = NIL_RTSPINLOCK;
|
---|
738 |
|
---|
739 | supdrvTracerTerm(pDevExt);
|
---|
740 |
|
---|
741 | #ifdef SUPDRV_WITH_RELEASE_LOGGER
|
---|
742 | /* destroy the loggers. */
|
---|
743 | RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
|
---|
744 | RTLogDestroy(RTLogSetDefaultInstance(NULL));
|
---|
745 | #endif
|
---|
746 | }
|
---|
747 |
|
---|
748 |
|
---|
749 | /**
|
---|
750 | * Create session.
|
---|
751 | *
|
---|
752 | * @returns IPRT status code.
|
---|
753 | * @param pDevExt Device extension.
|
---|
754 | * @param fUser Flag indicating whether this is a user or kernel
|
---|
755 | * session.
|
---|
756 | * @param fUnrestricted Unrestricted access (system) or restricted access
|
---|
757 | * (user)?
|
---|
758 | * @param ppSession Where to store the pointer to the session data.
|
---|
759 | */
|
---|
760 | int VBOXCALL supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, bool fUnrestricted, PSUPDRVSESSION *ppSession)
|
---|
761 | {
|
---|
762 | int rc;
|
---|
763 | PSUPDRVSESSION pSession;
|
---|
764 |
|
---|
765 | if (!SUP_IS_DEVEXT_VALID(pDevExt))
|
---|
766 | return VERR_INVALID_PARAMETER;
|
---|
767 |
|
---|
768 | /*
|
---|
769 | * Allocate memory for the session data.
|
---|
770 | */
|
---|
771 | pSession = *ppSession = (PSUPDRVSESSION)RTMemAllocZ(pDevExt->cbSession);
|
---|
772 | if (pSession)
|
---|
773 | {
|
---|
774 | /* Initialize session data. */
|
---|
775 | rc = RTSpinlockCreate(&pSession->Spinlock, RTSPINLOCK_FLAGS_INTERRUPT_UNSAFE, "SUPDrvSession");
|
---|
776 | if (!rc)
|
---|
777 | {
|
---|
778 | rc = RTHandleTableCreateEx(&pSession->hHandleTable,
|
---|
779 | RTHANDLETABLE_FLAGS_LOCKED_IRQ_SAFE | RTHANDLETABLE_FLAGS_CONTEXT,
|
---|
780 | 1 /*uBase*/, 32768 /*cMax*/, supdrvSessionObjHandleRetain, pSession);
|
---|
781 | if (RT_SUCCESS(rc))
|
---|
782 | {
|
---|
783 | Assert(pSession->Spinlock != NIL_RTSPINLOCK);
|
---|
784 | pSession->pDevExt = pDevExt;
|
---|
785 | pSession->u32Cookie = BIRD_INV;
|
---|
786 | pSession->fUnrestricted = fUnrestricted;
|
---|
787 | /*pSession->fInHashTable = false; */
|
---|
788 | pSession->cRefs = 1;
|
---|
789 | /*pSession->pCommonNextHash = NULL;
|
---|
790 | pSession->ppOsSessionPtr = NULL; */
|
---|
791 | if (fUser)
|
---|
792 | {
|
---|
793 | pSession->Process = RTProcSelf();
|
---|
794 | pSession->R0Process = RTR0ProcHandleSelf();
|
---|
795 | }
|
---|
796 | else
|
---|
797 | {
|
---|
798 | pSession->Process = NIL_RTPROCESS;
|
---|
799 | pSession->R0Process = NIL_RTR0PROCESS;
|
---|
800 | }
|
---|
801 | /*pSession->pLdrUsage = NULL;
|
---|
802 | pSession->pVM = NULL;
|
---|
803 | pSession->pUsage = NULL;
|
---|
804 | pSession->pGip = NULL;
|
---|
805 | pSession->fGipReferenced = false;
|
---|
806 | pSession->Bundle.cUsed = 0; */
|
---|
807 | pSession->Uid = NIL_RTUID;
|
---|
808 | pSession->Gid = NIL_RTGID;
|
---|
809 | /*pSession->uTracerData = 0;*/
|
---|
810 | pSession->hTracerCaller = NIL_RTNATIVETHREAD;
|
---|
811 | RTListInit(&pSession->TpProviders);
|
---|
812 | /*pSession->cTpProviders = 0;*/
|
---|
813 | /*pSession->cTpProbesFiring = 0;*/
|
---|
814 | RTListInit(&pSession->TpUmods);
|
---|
815 | /*RT_ZERO(pSession->apTpLookupTable);*/
|
---|
816 |
|
---|
817 | VBOXDRV_SESSION_CREATE(pSession, fUser);
|
---|
818 | LogFlow(("Created session %p initial cookie=%#x\n", pSession, pSession->u32Cookie));
|
---|
819 | return VINF_SUCCESS;
|
---|
820 | }
|
---|
821 |
|
---|
822 | RTSpinlockDestroy(pSession->Spinlock);
|
---|
823 | }
|
---|
824 | RTMemFree(pSession);
|
---|
825 | *ppSession = NULL;
|
---|
826 | Log(("Failed to create spinlock, rc=%d!\n", rc));
|
---|
827 | }
|
---|
828 | else
|
---|
829 | rc = VERR_NO_MEMORY;
|
---|
830 |
|
---|
831 | return rc;
|
---|
832 | }
|
---|
833 |
|
---|
834 |
|
---|
835 | /**
|
---|
836 | * Cleans up the session in the context of the process to which it belongs, the
|
---|
837 | * caller will free the session and the session spinlock.
|
---|
838 | *
|
---|
839 | * This should normally occur when the session is closed or as the process
|
---|
840 | * exits. Careful reference counting in the OS specfic code makes sure that
|
---|
841 | * there cannot be any races between process/handle cleanup callbacks and
|
---|
842 | * threads doing I/O control calls.
|
---|
843 | *
|
---|
844 | * @param pDevExt The device extension.
|
---|
845 | * @param pSession Session data.
|
---|
846 | */
|
---|
847 | static void supdrvCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
|
---|
848 | {
|
---|
849 | int rc;
|
---|
850 | PSUPDRVBUNDLE pBundle;
|
---|
851 | LogFlow(("supdrvCleanupSession: pSession=%p\n", pSession));
|
---|
852 |
|
---|
853 | Assert(!pSession->fInHashTable);
|
---|
854 | Assert(!pSession->ppOsSessionPtr);
|
---|
855 | AssertLogRelMsg(pSession->R0Process == RTR0ProcHandleSelf() || pSession->R0Process == NIL_RTR0PROCESS,
|
---|
856 | ("R0Process=%p cur=%p; curpid=%u\n",
|
---|
857 | pSession->R0Process, RTR0ProcHandleSelf(), RTProcSelf()));
|
---|
858 |
|
---|
859 | /*
|
---|
860 | * Remove logger instances related to this session.
|
---|
861 | */
|
---|
862 | RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pSession);
|
---|
863 |
|
---|
864 | /*
|
---|
865 | * Destroy the handle table.
|
---|
866 | */
|
---|
867 | rc = RTHandleTableDestroy(pSession->hHandleTable, supdrvSessionObjHandleDelete, pSession);
|
---|
868 | AssertRC(rc);
|
---|
869 | pSession->hHandleTable = NIL_RTHANDLETABLE;
|
---|
870 |
|
---|
871 | /*
|
---|
872 | * Release object references made in this session.
|
---|
873 | * In theory there should be noone racing us in this session.
|
---|
874 | */
|
---|
875 | Log2(("release objects - start\n"));
|
---|
876 | if (pSession->pUsage)
|
---|
877 | {
|
---|
878 | PSUPDRVUSAGE pUsage;
|
---|
879 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
880 |
|
---|
881 | while ((pUsage = pSession->pUsage) != NULL)
|
---|
882 | {
|
---|
883 | PSUPDRVOBJ pObj = pUsage->pObj;
|
---|
884 | pSession->pUsage = pUsage->pNext;
|
---|
885 |
|
---|
886 | AssertMsg(pUsage->cUsage >= 1 && pObj->cUsage >= pUsage->cUsage, ("glob %d; sess %d\n", pObj->cUsage, pUsage->cUsage));
|
---|
887 | if (pUsage->cUsage < pObj->cUsage)
|
---|
888 | {
|
---|
889 | pObj->cUsage -= pUsage->cUsage;
|
---|
890 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
891 | }
|
---|
892 | else
|
---|
893 | {
|
---|
894 | /* Destroy the object and free the record. */
|
---|
895 | if (pDevExt->pObjs == pObj)
|
---|
896 | pDevExt->pObjs = pObj->pNext;
|
---|
897 | else
|
---|
898 | {
|
---|
899 | PSUPDRVOBJ pObjPrev;
|
---|
900 | for (pObjPrev = pDevExt->pObjs; pObjPrev; pObjPrev = pObjPrev->pNext)
|
---|
901 | if (pObjPrev->pNext == pObj)
|
---|
902 | {
|
---|
903 | pObjPrev->pNext = pObj->pNext;
|
---|
904 | break;
|
---|
905 | }
|
---|
906 | Assert(pObjPrev);
|
---|
907 | }
|
---|
908 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
909 |
|
---|
910 | Log(("supdrvCleanupSession: destroying %p/%d (%p/%p) cpid=%RTproc pid=%RTproc dtor=%p\n",
|
---|
911 | pObj, pObj->enmType, pObj->pvUser1, pObj->pvUser2, pObj->CreatorProcess, RTProcSelf(), pObj->pfnDestructor));
|
---|
912 | if (pObj->pfnDestructor)
|
---|
913 | pObj->pfnDestructor(pObj, pObj->pvUser1, pObj->pvUser2);
|
---|
914 | RTMemFree(pObj);
|
---|
915 | }
|
---|
916 |
|
---|
917 | /* free it and continue. */
|
---|
918 | RTMemFree(pUsage);
|
---|
919 |
|
---|
920 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
921 | }
|
---|
922 |
|
---|
923 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
924 | AssertMsg(!pSession->pUsage, ("Some buster reregistered an object during desturction!\n"));
|
---|
925 | }
|
---|
926 | Log2(("release objects - done\n"));
|
---|
927 |
|
---|
928 | /*
|
---|
929 | * Make sure the associated VM pointers are NULL.
|
---|
930 | */
|
---|
931 | if (pSession->pSessionGVM || pSession->pSessionVM || pSession->pFastIoCtrlVM)
|
---|
932 | {
|
---|
933 | SUPR0Printf("supdrvCleanupSession: VM not disassociated! pSessionGVM=%p pSessionVM=%p pFastIoCtrlVM=%p\n",
|
---|
934 | pSession->pSessionGVM, pSession->pSessionVM, pSession->pFastIoCtrlVM);
|
---|
935 | pSession->pSessionGVM = NULL;
|
---|
936 | pSession->pSessionVM = NULL;
|
---|
937 | pSession->pFastIoCtrlVM = NULL;
|
---|
938 | }
|
---|
939 |
|
---|
940 | /*
|
---|
941 | * Do tracer cleanups related to this session.
|
---|
942 | */
|
---|
943 | Log2(("release tracer stuff - start\n"));
|
---|
944 | supdrvTracerCleanupSession(pDevExt, pSession);
|
---|
945 | Log2(("release tracer stuff - end\n"));
|
---|
946 |
|
---|
947 | /*
|
---|
948 | * Release memory allocated in the session.
|
---|
949 | *
|
---|
950 | * We do not serialize this as we assume that the application will
|
---|
951 | * not allocated memory while closing the file handle object.
|
---|
952 | */
|
---|
953 | Log2(("freeing memory:\n"));
|
---|
954 | pBundle = &pSession->Bundle;
|
---|
955 | while (pBundle)
|
---|
956 | {
|
---|
957 | PSUPDRVBUNDLE pToFree;
|
---|
958 | unsigned i;
|
---|
959 |
|
---|
960 | /*
|
---|
961 | * Check and unlock all entries in the bundle.
|
---|
962 | */
|
---|
963 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
964 | {
|
---|
965 | if (pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ)
|
---|
966 | {
|
---|
967 | Log2(("eType=%d pvR0=%p pvR3=%p cb=%ld\n", pBundle->aMem[i].eType, RTR0MemObjAddress(pBundle->aMem[i].MemObj),
|
---|
968 | (void *)RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3), (long)RTR0MemObjSize(pBundle->aMem[i].MemObj)));
|
---|
969 | if (pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ)
|
---|
970 | {
|
---|
971 | rc = RTR0MemObjFree(pBundle->aMem[i].MapObjR3, false);
|
---|
972 | AssertRC(rc); /** @todo figure out how to handle this. */
|
---|
973 | pBundle->aMem[i].MapObjR3 = NIL_RTR0MEMOBJ;
|
---|
974 | }
|
---|
975 | rc = RTR0MemObjFree(pBundle->aMem[i].MemObj, true /* fFreeMappings */);
|
---|
976 | AssertRC(rc); /** @todo figure out how to handle this. */
|
---|
977 | pBundle->aMem[i].MemObj = NIL_RTR0MEMOBJ;
|
---|
978 | pBundle->aMem[i].eType = MEMREF_TYPE_UNUSED;
|
---|
979 | }
|
---|
980 | }
|
---|
981 |
|
---|
982 | /*
|
---|
983 | * Advance and free previous bundle.
|
---|
984 | */
|
---|
985 | pToFree = pBundle;
|
---|
986 | pBundle = pBundle->pNext;
|
---|
987 |
|
---|
988 | pToFree->pNext = NULL;
|
---|
989 | pToFree->cUsed = 0;
|
---|
990 | if (pToFree != &pSession->Bundle)
|
---|
991 | RTMemFree(pToFree);
|
---|
992 | }
|
---|
993 | Log2(("freeing memory - done\n"));
|
---|
994 |
|
---|
995 | /*
|
---|
996 | * Deregister component factories.
|
---|
997 | */
|
---|
998 | RTSemFastMutexRequest(pDevExt->mtxComponentFactory);
|
---|
999 | Log2(("deregistering component factories:\n"));
|
---|
1000 | if (pDevExt->pComponentFactoryHead)
|
---|
1001 | {
|
---|
1002 | PSUPDRVFACTORYREG pPrev = NULL;
|
---|
1003 | PSUPDRVFACTORYREG pCur = pDevExt->pComponentFactoryHead;
|
---|
1004 | while (pCur)
|
---|
1005 | {
|
---|
1006 | if (pCur->pSession == pSession)
|
---|
1007 | {
|
---|
1008 | /* unlink it */
|
---|
1009 | PSUPDRVFACTORYREG pNext = pCur->pNext;
|
---|
1010 | if (pPrev)
|
---|
1011 | pPrev->pNext = pNext;
|
---|
1012 | else
|
---|
1013 | pDevExt->pComponentFactoryHead = pNext;
|
---|
1014 |
|
---|
1015 | /* free it */
|
---|
1016 | pCur->pNext = NULL;
|
---|
1017 | pCur->pSession = NULL;
|
---|
1018 | pCur->pFactory = NULL;
|
---|
1019 | RTMemFree(pCur);
|
---|
1020 |
|
---|
1021 | /* next */
|
---|
1022 | pCur = pNext;
|
---|
1023 | }
|
---|
1024 | else
|
---|
1025 | {
|
---|
1026 | /* next */
|
---|
1027 | pPrev = pCur;
|
---|
1028 | pCur = pCur->pNext;
|
---|
1029 | }
|
---|
1030 | }
|
---|
1031 | }
|
---|
1032 | RTSemFastMutexRelease(pDevExt->mtxComponentFactory);
|
---|
1033 | Log2(("deregistering component factories - done\n"));
|
---|
1034 |
|
---|
1035 | /*
|
---|
1036 | * Loaded images needs to be dereferenced and possibly freed up.
|
---|
1037 | */
|
---|
1038 | supdrvLdrLock(pDevExt);
|
---|
1039 | Log2(("freeing images:\n"));
|
---|
1040 | if (pSession->pLdrUsage)
|
---|
1041 | {
|
---|
1042 | PSUPDRVLDRUSAGE pUsage = pSession->pLdrUsage;
|
---|
1043 | pSession->pLdrUsage = NULL;
|
---|
1044 | while (pUsage)
|
---|
1045 | {
|
---|
1046 | void *pvFree = pUsage;
|
---|
1047 | PSUPDRVLDRIMAGE pImage = pUsage->pImage;
|
---|
1048 | if (pImage->cUsage > pUsage->cUsage)
|
---|
1049 | pImage->cUsage -= pUsage->cUsage;
|
---|
1050 | else
|
---|
1051 | supdrvLdrFree(pDevExt, pImage);
|
---|
1052 | pUsage->pImage = NULL;
|
---|
1053 | pUsage = pUsage->pNext;
|
---|
1054 | RTMemFree(pvFree);
|
---|
1055 | }
|
---|
1056 | }
|
---|
1057 | supdrvLdrUnlock(pDevExt);
|
---|
1058 | Log2(("freeing images - done\n"));
|
---|
1059 |
|
---|
1060 | /*
|
---|
1061 | * Unmap the GIP.
|
---|
1062 | */
|
---|
1063 | Log2(("umapping GIP:\n"));
|
---|
1064 | if (pSession->GipMapObjR3 != NIL_RTR0MEMOBJ)
|
---|
1065 | {
|
---|
1066 | SUPR0GipUnmap(pSession);
|
---|
1067 | pSession->fGipReferenced = 0;
|
---|
1068 | }
|
---|
1069 | Log2(("umapping GIP - done\n"));
|
---|
1070 | }
|
---|
1071 |
|
---|
1072 |
|
---|
1073 | /**
|
---|
1074 | * Common code for freeing a session when the reference count reaches zero.
|
---|
1075 | *
|
---|
1076 | * @param pDevExt Device extension.
|
---|
1077 | * @param pSession Session data.
|
---|
1078 | * This data will be freed by this routine.
|
---|
1079 | */
|
---|
1080 | static void supdrvDestroySession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
|
---|
1081 | {
|
---|
1082 | VBOXDRV_SESSION_CLOSE(pSession);
|
---|
1083 |
|
---|
1084 | /*
|
---|
1085 | * Cleanup the session first.
|
---|
1086 | */
|
---|
1087 | supdrvCleanupSession(pDevExt, pSession);
|
---|
1088 | supdrvOSCleanupSession(pDevExt, pSession);
|
---|
1089 |
|
---|
1090 | /*
|
---|
1091 | * Free the rest of the session stuff.
|
---|
1092 | */
|
---|
1093 | RTSpinlockDestroy(pSession->Spinlock);
|
---|
1094 | pSession->Spinlock = NIL_RTSPINLOCK;
|
---|
1095 | pSession->pDevExt = NULL;
|
---|
1096 | RTMemFree(pSession);
|
---|
1097 | LogFlow(("supdrvDestroySession: returns\n"));
|
---|
1098 | }
|
---|
1099 |
|
---|
1100 |
|
---|
1101 | /**
|
---|
1102 | * Inserts the session into the global hash table.
|
---|
1103 | *
|
---|
1104 | * @retval VINF_SUCCESS on success.
|
---|
1105 | * @retval VERR_WRONG_ORDER if the session was already inserted (asserted).
|
---|
1106 | * @retval VERR_INVALID_PARAMETER if the session handle is invalid or a ring-0
|
---|
1107 | * session (asserted).
|
---|
1108 | * @retval VERR_DUPLICATE if there is already a session for that pid.
|
---|
1109 | *
|
---|
1110 | * @param pDevExt The device extension.
|
---|
1111 | * @param pSession The session.
|
---|
1112 | * @param ppOsSessionPtr Pointer to the OS session pointer, if any is
|
---|
1113 | * available and used. This will set to point to the
|
---|
1114 | * session while under the protection of the session
|
---|
1115 | * hash table spinlock. It will also be kept in
|
---|
1116 | * PSUPDRVSESSION::ppOsSessionPtr for lookup and
|
---|
1117 | * cleanup use.
|
---|
1118 | * @param pvUser Argument for supdrvOSSessionHashTabInserted.
|
---|
1119 | */
|
---|
1120 | int VBOXCALL supdrvSessionHashTabInsert(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVSESSION *ppOsSessionPtr,
|
---|
1121 | void *pvUser)
|
---|
1122 | {
|
---|
1123 | PSUPDRVSESSION pCur;
|
---|
1124 | unsigned iHash;
|
---|
1125 |
|
---|
1126 | /*
|
---|
1127 | * Validate input.
|
---|
1128 | */
|
---|
1129 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
1130 | AssertReturn(pSession->R0Process != NIL_RTR0PROCESS, VERR_INVALID_PARAMETER);
|
---|
1131 |
|
---|
1132 | /*
|
---|
1133 | * Calculate the hash table index and acquire the spinlock.
|
---|
1134 | */
|
---|
1135 | iHash = SUPDRV_SESSION_HASH(pSession->Process);
|
---|
1136 |
|
---|
1137 | RTSpinlockAcquire(pDevExt->hSessionHashTabSpinlock);
|
---|
1138 |
|
---|
1139 | /*
|
---|
1140 | * If there are a collisions, we need to carefully check if we got a
|
---|
1141 | * duplicate. There can only be one open session per process.
|
---|
1142 | */
|
---|
1143 | pCur = pDevExt->apSessionHashTab[iHash];
|
---|
1144 | if (pCur)
|
---|
1145 | {
|
---|
1146 | while (pCur && pCur->Process != pSession->Process)
|
---|
1147 | pCur = pCur->pCommonNextHash;
|
---|
1148 |
|
---|
1149 | if (pCur)
|
---|
1150 | {
|
---|
1151 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1152 | if (pCur == pSession)
|
---|
1153 | {
|
---|
1154 | Assert(pSession->fInHashTable);
|
---|
1155 | AssertFailed();
|
---|
1156 | return VERR_WRONG_ORDER;
|
---|
1157 | }
|
---|
1158 | Assert(!pSession->fInHashTable);
|
---|
1159 | if (pCur->R0Process == pSession->R0Process)
|
---|
1160 | return VERR_RESOURCE_IN_USE;
|
---|
1161 | return VERR_DUPLICATE;
|
---|
1162 | }
|
---|
1163 | }
|
---|
1164 | Assert(!pSession->fInHashTable);
|
---|
1165 | Assert(!pSession->ppOsSessionPtr);
|
---|
1166 |
|
---|
1167 | /*
|
---|
1168 | * Insert it, doing a callout to the OS specific code in case it has
|
---|
1169 | * anything it wishes to do while we're holding the spinlock.
|
---|
1170 | */
|
---|
1171 | pSession->pCommonNextHash = pDevExt->apSessionHashTab[iHash];
|
---|
1172 | pDevExt->apSessionHashTab[iHash] = pSession;
|
---|
1173 | pSession->fInHashTable = true;
|
---|
1174 | ASMAtomicIncS32(&pDevExt->cSessions);
|
---|
1175 |
|
---|
1176 | pSession->ppOsSessionPtr = ppOsSessionPtr;
|
---|
1177 | if (ppOsSessionPtr)
|
---|
1178 | ASMAtomicWritePtr(ppOsSessionPtr, pSession);
|
---|
1179 |
|
---|
1180 | supdrvOSSessionHashTabInserted(pDevExt, pSession, pvUser);
|
---|
1181 |
|
---|
1182 | /*
|
---|
1183 | * Retain a reference for the pointer in the session table.
|
---|
1184 | */
|
---|
1185 | ASMAtomicIncU32(&pSession->cRefs);
|
---|
1186 |
|
---|
1187 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1188 | return VINF_SUCCESS;
|
---|
1189 | }
|
---|
1190 |
|
---|
1191 |
|
---|
1192 | /**
|
---|
1193 | * Removes the session from the global hash table.
|
---|
1194 | *
|
---|
1195 | * @retval VINF_SUCCESS on success.
|
---|
1196 | * @retval VERR_NOT_FOUND if the session was already removed (asserted).
|
---|
1197 | * @retval VERR_INVALID_PARAMETER if the session handle is invalid or a ring-0
|
---|
1198 | * session (asserted).
|
---|
1199 | *
|
---|
1200 | * @param pDevExt The device extension.
|
---|
1201 | * @param pSession The session. The caller is expected to have a reference
|
---|
1202 | * to this so it won't croak on us when we release the hash
|
---|
1203 | * table reference.
|
---|
1204 | * @param pvUser OS specific context value for the
|
---|
1205 | * supdrvOSSessionHashTabInserted callback.
|
---|
1206 | */
|
---|
1207 | int VBOXCALL supdrvSessionHashTabRemove(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, void *pvUser)
|
---|
1208 | {
|
---|
1209 | PSUPDRVSESSION pCur;
|
---|
1210 | unsigned iHash;
|
---|
1211 | int32_t cRefs;
|
---|
1212 |
|
---|
1213 | /*
|
---|
1214 | * Validate input.
|
---|
1215 | */
|
---|
1216 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
1217 | AssertReturn(pSession->R0Process != NIL_RTR0PROCESS, VERR_INVALID_PARAMETER);
|
---|
1218 |
|
---|
1219 | /*
|
---|
1220 | * Calculate the hash table index and acquire the spinlock.
|
---|
1221 | */
|
---|
1222 | iHash = SUPDRV_SESSION_HASH(pSession->Process);
|
---|
1223 |
|
---|
1224 | RTSpinlockAcquire(pDevExt->hSessionHashTabSpinlock);
|
---|
1225 |
|
---|
1226 | /*
|
---|
1227 | * Unlink it.
|
---|
1228 | */
|
---|
1229 | pCur = pDevExt->apSessionHashTab[iHash];
|
---|
1230 | if (pCur == pSession)
|
---|
1231 | pDevExt->apSessionHashTab[iHash] = pSession->pCommonNextHash;
|
---|
1232 | else
|
---|
1233 | {
|
---|
1234 | PSUPDRVSESSION pPrev = pCur;
|
---|
1235 | while (pCur && pCur != pSession)
|
---|
1236 | {
|
---|
1237 | pPrev = pCur;
|
---|
1238 | pCur = pCur->pCommonNextHash;
|
---|
1239 | }
|
---|
1240 | if (pCur)
|
---|
1241 | pPrev->pCommonNextHash = pCur->pCommonNextHash;
|
---|
1242 | else
|
---|
1243 | {
|
---|
1244 | Assert(!pSession->fInHashTable);
|
---|
1245 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1246 | return VERR_NOT_FOUND;
|
---|
1247 | }
|
---|
1248 | }
|
---|
1249 |
|
---|
1250 | pSession->pCommonNextHash = NULL;
|
---|
1251 | pSession->fInHashTable = false;
|
---|
1252 |
|
---|
1253 | ASMAtomicDecS32(&pDevExt->cSessions);
|
---|
1254 |
|
---|
1255 | /*
|
---|
1256 | * Clear OS specific session pointer if available and do the OS callback.
|
---|
1257 | */
|
---|
1258 | if (pSession->ppOsSessionPtr)
|
---|
1259 | {
|
---|
1260 | ASMAtomicCmpXchgPtr(pSession->ppOsSessionPtr, NULL, pSession);
|
---|
1261 | pSession->ppOsSessionPtr = NULL;
|
---|
1262 | }
|
---|
1263 |
|
---|
1264 | supdrvOSSessionHashTabRemoved(pDevExt, pSession, pvUser);
|
---|
1265 |
|
---|
1266 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1267 |
|
---|
1268 | /*
|
---|
1269 | * Drop the reference the hash table had to the session. This shouldn't
|
---|
1270 | * be the last reference!
|
---|
1271 | */
|
---|
1272 | cRefs = ASMAtomicDecU32(&pSession->cRefs);
|
---|
1273 | Assert(cRefs > 0 && cRefs < _1M);
|
---|
1274 | if (cRefs == 0)
|
---|
1275 | supdrvDestroySession(pDevExt, pSession);
|
---|
1276 |
|
---|
1277 | return VINF_SUCCESS;
|
---|
1278 | }
|
---|
1279 |
|
---|
1280 |
|
---|
1281 | /**
|
---|
1282 | * Looks up the session for the current process in the global hash table or in
|
---|
1283 | * OS specific pointer.
|
---|
1284 | *
|
---|
1285 | * @returns Pointer to the session with a reference that the caller must
|
---|
1286 | * release. If no valid session was found, NULL is returned.
|
---|
1287 | *
|
---|
1288 | * @param pDevExt The device extension.
|
---|
1289 | * @param Process The process ID.
|
---|
1290 | * @param R0Process The ring-0 process handle.
|
---|
1291 | * @param ppOsSessionPtr The OS session pointer if available. If not NULL,
|
---|
1292 | * this is used instead of the hash table. For
|
---|
1293 | * additional safety it must then be equal to the
|
---|
1294 | * SUPDRVSESSION::ppOsSessionPtr member.
|
---|
1295 | * This can be NULL even if the OS has a session
|
---|
1296 | * pointer.
|
---|
1297 | */
|
---|
1298 | PSUPDRVSESSION VBOXCALL supdrvSessionHashTabLookup(PSUPDRVDEVEXT pDevExt, RTPROCESS Process, RTR0PROCESS R0Process,
|
---|
1299 | PSUPDRVSESSION *ppOsSessionPtr)
|
---|
1300 | {
|
---|
1301 | PSUPDRVSESSION pCur;
|
---|
1302 | unsigned iHash;
|
---|
1303 |
|
---|
1304 | /*
|
---|
1305 | * Validate input.
|
---|
1306 | */
|
---|
1307 | AssertReturn(R0Process != NIL_RTR0PROCESS, NULL);
|
---|
1308 |
|
---|
1309 | /*
|
---|
1310 | * Calculate the hash table index and acquire the spinlock.
|
---|
1311 | */
|
---|
1312 | iHash = SUPDRV_SESSION_HASH(Process);
|
---|
1313 |
|
---|
1314 | RTSpinlockAcquire(pDevExt->hSessionHashTabSpinlock);
|
---|
1315 |
|
---|
1316 | /*
|
---|
1317 | * If an OS session pointer is provided, always use it.
|
---|
1318 | */
|
---|
1319 | if (ppOsSessionPtr)
|
---|
1320 | {
|
---|
1321 | pCur = *ppOsSessionPtr;
|
---|
1322 | if ( pCur
|
---|
1323 | && ( pCur->ppOsSessionPtr != ppOsSessionPtr
|
---|
1324 | || pCur->Process != Process
|
---|
1325 | || pCur->R0Process != R0Process) )
|
---|
1326 | pCur = NULL;
|
---|
1327 | }
|
---|
1328 | else
|
---|
1329 | {
|
---|
1330 | /*
|
---|
1331 | * Otherwise, do the hash table lookup.
|
---|
1332 | */
|
---|
1333 | pCur = pDevExt->apSessionHashTab[iHash];
|
---|
1334 | while ( pCur
|
---|
1335 | && ( pCur->Process != Process
|
---|
1336 | || pCur->R0Process != R0Process) )
|
---|
1337 | pCur = pCur->pCommonNextHash;
|
---|
1338 | }
|
---|
1339 |
|
---|
1340 | /*
|
---|
1341 | * Retain the session.
|
---|
1342 | */
|
---|
1343 | if (pCur)
|
---|
1344 | {
|
---|
1345 | uint32_t cRefs = ASMAtomicIncU32(&pCur->cRefs);
|
---|
1346 | NOREF(cRefs);
|
---|
1347 | Assert(cRefs > 1 && cRefs < _1M);
|
---|
1348 | }
|
---|
1349 |
|
---|
1350 | RTSpinlockRelease(pDevExt->hSessionHashTabSpinlock);
|
---|
1351 |
|
---|
1352 | return pCur;
|
---|
1353 | }
|
---|
1354 |
|
---|
1355 |
|
---|
1356 | /**
|
---|
1357 | * Retain a session to make sure it doesn't go away while it is in use.
|
---|
1358 | *
|
---|
1359 | * @returns New reference count on success, UINT32_MAX on failure.
|
---|
1360 | * @param pSession Session data.
|
---|
1361 | */
|
---|
1362 | uint32_t VBOXCALL supdrvSessionRetain(PSUPDRVSESSION pSession)
|
---|
1363 | {
|
---|
1364 | uint32_t cRefs;
|
---|
1365 | AssertPtrReturn(pSession, UINT32_MAX);
|
---|
1366 | AssertReturn(SUP_IS_SESSION_VALID(pSession), UINT32_MAX);
|
---|
1367 |
|
---|
1368 | cRefs = ASMAtomicIncU32(&pSession->cRefs);
|
---|
1369 | AssertMsg(cRefs > 1 && cRefs < _1M, ("%#x %p\n", cRefs, pSession));
|
---|
1370 | return cRefs;
|
---|
1371 | }
|
---|
1372 |
|
---|
1373 |
|
---|
1374 | /**
|
---|
1375 | * Releases a given session.
|
---|
1376 | *
|
---|
1377 | * @returns New reference count on success (0 if closed), UINT32_MAX on failure.
|
---|
1378 | * @param pSession Session data.
|
---|
1379 | */
|
---|
1380 | uint32_t VBOXCALL supdrvSessionRelease(PSUPDRVSESSION pSession)
|
---|
1381 | {
|
---|
1382 | uint32_t cRefs;
|
---|
1383 | AssertPtrReturn(pSession, UINT32_MAX);
|
---|
1384 | AssertReturn(SUP_IS_SESSION_VALID(pSession), UINT32_MAX);
|
---|
1385 |
|
---|
1386 | cRefs = ASMAtomicDecU32(&pSession->cRefs);
|
---|
1387 | AssertMsg(cRefs < _1M, ("%#x %p\n", cRefs, pSession));
|
---|
1388 | if (cRefs == 0)
|
---|
1389 | supdrvDestroySession(pSession->pDevExt, pSession);
|
---|
1390 | return cRefs;
|
---|
1391 | }
|
---|
1392 |
|
---|
1393 |
|
---|
1394 | /**
|
---|
1395 | * RTHandleTableDestroy callback used by supdrvCleanupSession.
|
---|
1396 | *
|
---|
1397 | * @returns IPRT status code, see SUPR0ObjAddRef.
|
---|
1398 | * @param hHandleTable The handle table handle. Ignored.
|
---|
1399 | * @param pvObj The object pointer.
|
---|
1400 | * @param pvCtx Context, the handle type. Ignored.
|
---|
1401 | * @param pvUser Session pointer.
|
---|
1402 | */
|
---|
1403 | static DECLCALLBACK(int) supdrvSessionObjHandleRetain(RTHANDLETABLE hHandleTable, void *pvObj, void *pvCtx, void *pvUser)
|
---|
1404 | {
|
---|
1405 | NOREF(pvCtx);
|
---|
1406 | NOREF(hHandleTable);
|
---|
1407 | return SUPR0ObjAddRefEx(pvObj, (PSUPDRVSESSION)pvUser, true /*fNoBlocking*/);
|
---|
1408 | }
|
---|
1409 |
|
---|
1410 |
|
---|
1411 | /**
|
---|
1412 | * RTHandleTableDestroy callback used by supdrvCleanupSession.
|
---|
1413 | *
|
---|
1414 | * @param hHandleTable The handle table handle. Ignored.
|
---|
1415 | * @param h The handle value. Ignored.
|
---|
1416 | * @param pvObj The object pointer.
|
---|
1417 | * @param pvCtx Context, the handle type. Ignored.
|
---|
1418 | * @param pvUser Session pointer.
|
---|
1419 | */
|
---|
1420 | static DECLCALLBACK(void) supdrvSessionObjHandleDelete(RTHANDLETABLE hHandleTable, uint32_t h, void *pvObj, void *pvCtx, void *pvUser)
|
---|
1421 | {
|
---|
1422 | NOREF(pvCtx);
|
---|
1423 | NOREF(h);
|
---|
1424 | NOREF(hHandleTable);
|
---|
1425 | SUPR0ObjRelease(pvObj, (PSUPDRVSESSION)pvUser);
|
---|
1426 | }
|
---|
1427 |
|
---|
1428 |
|
---|
1429 | /**
|
---|
1430 | * Fast path I/O Control worker.
|
---|
1431 | *
|
---|
1432 | * @returns VBox status code that should be passed down to ring-3 unchanged.
|
---|
1433 | * @param uIOCtl Function number.
|
---|
1434 | * @param idCpu VMCPU id.
|
---|
1435 | * @param pDevExt Device extention.
|
---|
1436 | * @param pSession Session data.
|
---|
1437 | */
|
---|
1438 | int VBOXCALL supdrvIOCtlFast(uintptr_t uIOCtl, VMCPUID idCpu, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
|
---|
1439 | {
|
---|
1440 | /*
|
---|
1441 | * Validate input and check that the VM has a session.
|
---|
1442 | */
|
---|
1443 | if (RT_LIKELY(RT_VALID_PTR(pSession)))
|
---|
1444 | {
|
---|
1445 | PVM pVM = pSession->pSessionVM;
|
---|
1446 | PGVM pGVM = pSession->pSessionGVM;
|
---|
1447 | if (RT_LIKELY( pGVM != NULL
|
---|
1448 | && pVM != NULL
|
---|
1449 | && pVM == pSession->pFastIoCtrlVM))
|
---|
1450 | {
|
---|
1451 | if (RT_LIKELY(pDevExt->pfnVMMR0EntryFast))
|
---|
1452 | {
|
---|
1453 | /*
|
---|
1454 | * Do the call.
|
---|
1455 | */
|
---|
1456 | switch (uIOCtl)
|
---|
1457 | {
|
---|
1458 | case SUP_IOCTL_FAST_DO_RAW_RUN:
|
---|
1459 | pDevExt->pfnVMMR0EntryFast(pGVM, pVM, idCpu, SUP_VMMR0_DO_RAW_RUN);
|
---|
1460 | break;
|
---|
1461 | case SUP_IOCTL_FAST_DO_HM_RUN:
|
---|
1462 | pDevExt->pfnVMMR0EntryFast(pGVM, pVM, idCpu, SUP_VMMR0_DO_HM_RUN);
|
---|
1463 | break;
|
---|
1464 | case SUP_IOCTL_FAST_DO_NOP:
|
---|
1465 | pDevExt->pfnVMMR0EntryFast(pGVM, pVM, idCpu, SUP_VMMR0_DO_NOP);
|
---|
1466 | break;
|
---|
1467 | default:
|
---|
1468 | return VERR_INTERNAL_ERROR;
|
---|
1469 | }
|
---|
1470 | return VINF_SUCCESS;
|
---|
1471 | }
|
---|
1472 |
|
---|
1473 | SUPR0Printf("supdrvIOCtlFast: pfnVMMR0EntryFast is NULL\n");
|
---|
1474 | }
|
---|
1475 | else
|
---|
1476 | SUPR0Printf("supdrvIOCtlFast: Misconfig session: pGVM=%p pVM=%p pFastIoCtrlVM=%p\n",
|
---|
1477 | pGVM, pVM, pSession->pFastIoCtrlVM);
|
---|
1478 | }
|
---|
1479 | else
|
---|
1480 | SUPR0Printf("supdrvIOCtlFast: Bad session pointer %p\n", pSession);
|
---|
1481 | return VERR_INTERNAL_ERROR;
|
---|
1482 | }
|
---|
1483 |
|
---|
1484 |
|
---|
1485 | /**
|
---|
1486 | * Helper for supdrvIOCtl used to validate module names passed to SUP_IOCTL_LDR_OPEN.
|
---|
1487 | *
|
---|
1488 | * Check if pszStr contains any character of pszChars. We would use strpbrk
|
---|
1489 | * here if this function would be contained in the RedHat kABI white list, see
|
---|
1490 | * http://www.kerneldrivers.org/RHEL5.
|
---|
1491 | *
|
---|
1492 | * @returns true if fine, false if not.
|
---|
1493 | * @param pszName The module name to check.
|
---|
1494 | */
|
---|
1495 | static bool supdrvIsLdrModuleNameValid(const char *pszName)
|
---|
1496 | {
|
---|
1497 | int chCur;
|
---|
1498 | while ((chCur = *pszName++) != '\0')
|
---|
1499 | {
|
---|
1500 | static const char s_szInvalidChars[] = ";:()[]{}/\\|&*%#@!~`\"'";
|
---|
1501 | unsigned offInv = RT_ELEMENTS(s_szInvalidChars);
|
---|
1502 | while (offInv-- > 0)
|
---|
1503 | if (s_szInvalidChars[offInv] == chCur)
|
---|
1504 | return false;
|
---|
1505 | }
|
---|
1506 | return true;
|
---|
1507 | }
|
---|
1508 |
|
---|
1509 |
|
---|
1510 |
|
---|
1511 | /**
|
---|
1512 | * I/O Control inner worker (tracing reasons).
|
---|
1513 | *
|
---|
1514 | * @returns IPRT status code.
|
---|
1515 | * @retval VERR_INVALID_PARAMETER if the request is invalid.
|
---|
1516 | *
|
---|
1517 | * @param uIOCtl Function number.
|
---|
1518 | * @param pDevExt Device extention.
|
---|
1519 | * @param pSession Session data.
|
---|
1520 | * @param pReqHdr The request header.
|
---|
1521 | */
|
---|
1522 | static int supdrvIOCtlInnerUnrestricted(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr)
|
---|
1523 | {
|
---|
1524 | /*
|
---|
1525 | * Validation macros
|
---|
1526 | */
|
---|
1527 | #define REQ_CHECK_SIZES_EX(Name, cbInExpect, cbOutExpect) \
|
---|
1528 | do { \
|
---|
1529 | if (RT_UNLIKELY(pReqHdr->cbIn != (cbInExpect) || pReqHdr->cbOut != (cbOutExpect))) \
|
---|
1530 | { \
|
---|
1531 | OSDBGPRINT(( #Name ": Invalid input/output sizes. cbIn=%ld expected %ld. cbOut=%ld expected %ld.\n", \
|
---|
1532 | (long)pReqHdr->cbIn, (long)(cbInExpect), (long)pReqHdr->cbOut, (long)(cbOutExpect))); \
|
---|
1533 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1534 | } \
|
---|
1535 | } while (0)
|
---|
1536 |
|
---|
1537 | #define REQ_CHECK_SIZES(Name) REQ_CHECK_SIZES_EX(Name, Name ## _SIZE_IN, Name ## _SIZE_OUT)
|
---|
1538 |
|
---|
1539 | #define REQ_CHECK_SIZE_IN(Name, cbInExpect) \
|
---|
1540 | do { \
|
---|
1541 | if (RT_UNLIKELY(pReqHdr->cbIn != (cbInExpect))) \
|
---|
1542 | { \
|
---|
1543 | OSDBGPRINT(( #Name ": Invalid input/output sizes. cbIn=%ld expected %ld.\n", \
|
---|
1544 | (long)pReqHdr->cbIn, (long)(cbInExpect))); \
|
---|
1545 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1546 | } \
|
---|
1547 | } while (0)
|
---|
1548 |
|
---|
1549 | #define REQ_CHECK_SIZE_OUT(Name, cbOutExpect) \
|
---|
1550 | do { \
|
---|
1551 | if (RT_UNLIKELY(pReqHdr->cbOut != (cbOutExpect))) \
|
---|
1552 | { \
|
---|
1553 | OSDBGPRINT(( #Name ": Invalid input/output sizes. cbOut=%ld expected %ld.\n", \
|
---|
1554 | (long)pReqHdr->cbOut, (long)(cbOutExpect))); \
|
---|
1555 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1556 | } \
|
---|
1557 | } while (0)
|
---|
1558 |
|
---|
1559 | #define REQ_CHECK_EXPR(Name, expr) \
|
---|
1560 | do { \
|
---|
1561 | if (RT_UNLIKELY(!(expr))) \
|
---|
1562 | { \
|
---|
1563 | OSDBGPRINT(( #Name ": %s\n", #expr)); \
|
---|
1564 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1565 | } \
|
---|
1566 | } while (0)
|
---|
1567 |
|
---|
1568 | #define REQ_CHECK_EXPR_FMT(expr, fmt) \
|
---|
1569 | do { \
|
---|
1570 | if (RT_UNLIKELY(!(expr))) \
|
---|
1571 | { \
|
---|
1572 | OSDBGPRINT( fmt ); \
|
---|
1573 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
1574 | } \
|
---|
1575 | } while (0)
|
---|
1576 |
|
---|
1577 | /*
|
---|
1578 | * The switch.
|
---|
1579 | */
|
---|
1580 | switch (SUP_CTL_CODE_NO_SIZE(uIOCtl))
|
---|
1581 | {
|
---|
1582 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_COOKIE):
|
---|
1583 | {
|
---|
1584 | PSUPCOOKIE pReq = (PSUPCOOKIE)pReqHdr;
|
---|
1585 | REQ_CHECK_SIZES(SUP_IOCTL_COOKIE);
|
---|
1586 | if (strncmp(pReq->u.In.szMagic, SUPCOOKIE_MAGIC, sizeof(pReq->u.In.szMagic)))
|
---|
1587 | {
|
---|
1588 | OSDBGPRINT(("SUP_IOCTL_COOKIE: invalid magic %.16s\n", pReq->u.In.szMagic));
|
---|
1589 | pReq->Hdr.rc = VERR_INVALID_MAGIC;
|
---|
1590 | return 0;
|
---|
1591 | }
|
---|
1592 |
|
---|
1593 | #if 0
|
---|
1594 | /*
|
---|
1595 | * Call out to the OS specific code and let it do permission checks on the
|
---|
1596 | * client process.
|
---|
1597 | */
|
---|
1598 | if (!supdrvOSValidateClientProcess(pDevExt, pSession))
|
---|
1599 | {
|
---|
1600 | pReq->u.Out.u32Cookie = 0xffffffff;
|
---|
1601 | pReq->u.Out.u32SessionCookie = 0xffffffff;
|
---|
1602 | pReq->u.Out.u32SessionVersion = 0xffffffff;
|
---|
1603 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
1604 | pReq->u.Out.pSession = NULL;
|
---|
1605 | pReq->u.Out.cFunctions = 0;
|
---|
1606 | pReq->Hdr.rc = VERR_PERMISSION_DENIED;
|
---|
1607 | return 0;
|
---|
1608 | }
|
---|
1609 | #endif
|
---|
1610 |
|
---|
1611 | /*
|
---|
1612 | * Match the version.
|
---|
1613 | * The current logic is very simple, match the major interface version.
|
---|
1614 | */
|
---|
1615 | if ( pReq->u.In.u32MinVersion > SUPDRV_IOC_VERSION
|
---|
1616 | || (pReq->u.In.u32MinVersion & 0xffff0000) != (SUPDRV_IOC_VERSION & 0xffff0000))
|
---|
1617 | {
|
---|
1618 | OSDBGPRINT(("SUP_IOCTL_COOKIE: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
|
---|
1619 | pReq->u.In.u32ReqVersion, pReq->u.In.u32MinVersion, SUPDRV_IOC_VERSION));
|
---|
1620 | pReq->u.Out.u32Cookie = 0xffffffff;
|
---|
1621 | pReq->u.Out.u32SessionCookie = 0xffffffff;
|
---|
1622 | pReq->u.Out.u32SessionVersion = 0xffffffff;
|
---|
1623 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
1624 | pReq->u.Out.pSession = NULL;
|
---|
1625 | pReq->u.Out.cFunctions = 0;
|
---|
1626 | pReq->Hdr.rc = VERR_VERSION_MISMATCH;
|
---|
1627 | return 0;
|
---|
1628 | }
|
---|
1629 |
|
---|
1630 | /*
|
---|
1631 | * Fill in return data and be gone.
|
---|
1632 | * N.B. The first one to change SUPDRV_IOC_VERSION shall makes sure that
|
---|
1633 | * u32SessionVersion <= u32ReqVersion!
|
---|
1634 | */
|
---|
1635 | /** @todo Somehow validate the client and negotiate a secure cookie... */
|
---|
1636 | pReq->u.Out.u32Cookie = pDevExt->u32Cookie;
|
---|
1637 | pReq->u.Out.u32SessionCookie = pSession->u32Cookie;
|
---|
1638 | pReq->u.Out.u32SessionVersion = SUPDRV_IOC_VERSION;
|
---|
1639 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
1640 | pReq->u.Out.pSession = pSession;
|
---|
1641 | pReq->u.Out.cFunctions = sizeof(g_aFunctions) / sizeof(g_aFunctions[0]);
|
---|
1642 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
1643 | return 0;
|
---|
1644 | }
|
---|
1645 |
|
---|
1646 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_QUERY_FUNCS(0)):
|
---|
1647 | {
|
---|
1648 | /* validate */
|
---|
1649 | PSUPQUERYFUNCS pReq = (PSUPQUERYFUNCS)pReqHdr;
|
---|
1650 | REQ_CHECK_SIZES_EX(SUP_IOCTL_QUERY_FUNCS, SUP_IOCTL_QUERY_FUNCS_SIZE_IN, SUP_IOCTL_QUERY_FUNCS_SIZE_OUT(RT_ELEMENTS(g_aFunctions)));
|
---|
1651 |
|
---|
1652 | /* execute */
|
---|
1653 | pReq->u.Out.cFunctions = RT_ELEMENTS(g_aFunctions);
|
---|
1654 | memcpy(&pReq->u.Out.aFunctions[0], g_aFunctions, sizeof(g_aFunctions));
|
---|
1655 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
1656 | return 0;
|
---|
1657 | }
|
---|
1658 |
|
---|
1659 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_LOCK):
|
---|
1660 | {
|
---|
1661 | /* validate */
|
---|
1662 | PSUPPAGELOCK pReq = (PSUPPAGELOCK)pReqHdr;
|
---|
1663 | REQ_CHECK_SIZE_IN(SUP_IOCTL_PAGE_LOCK, SUP_IOCTL_PAGE_LOCK_SIZE_IN);
|
---|
1664 | REQ_CHECK_SIZE_OUT(SUP_IOCTL_PAGE_LOCK, SUP_IOCTL_PAGE_LOCK_SIZE_OUT(pReq->u.In.cPages));
|
---|
1665 | REQ_CHECK_EXPR(SUP_IOCTL_PAGE_LOCK, pReq->u.In.cPages > 0);
|
---|
1666 | REQ_CHECK_EXPR(SUP_IOCTL_PAGE_LOCK, pReq->u.In.pvR3 >= PAGE_SIZE);
|
---|
1667 |
|
---|
1668 | /* execute */
|
---|
1669 | pReq->Hdr.rc = SUPR0LockMem(pSession, pReq->u.In.pvR3, pReq->u.In.cPages, &pReq->u.Out.aPages[0]);
|
---|
1670 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
1671 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
1672 | return 0;
|
---|
1673 | }
|
---|
1674 |
|
---|
1675 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_UNLOCK):
|
---|
1676 | {
|
---|
1677 | /* validate */
|
---|
1678 | PSUPPAGEUNLOCK pReq = (PSUPPAGEUNLOCK)pReqHdr;
|
---|
1679 | REQ_CHECK_SIZES(SUP_IOCTL_PAGE_UNLOCK);
|
---|
1680 |
|
---|
1681 | /* execute */
|
---|
1682 | pReq->Hdr.rc = SUPR0UnlockMem(pSession, pReq->u.In.pvR3);
|
---|
1683 | return 0;
|
---|
1684 | }
|
---|
1685 |
|
---|
1686 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CONT_ALLOC):
|
---|
1687 | {
|
---|
1688 | /* validate */
|
---|
1689 | PSUPCONTALLOC pReq = (PSUPCONTALLOC)pReqHdr;
|
---|
1690 | REQ_CHECK_SIZES(SUP_IOCTL_CONT_ALLOC);
|
---|
1691 |
|
---|
1692 | /* execute */
|
---|
1693 | pReq->Hdr.rc = SUPR0ContAlloc(pSession, pReq->u.In.cPages, &pReq->u.Out.pvR0, &pReq->u.Out.pvR3, &pReq->u.Out.HCPhys);
|
---|
1694 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
1695 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
1696 | return 0;
|
---|
1697 | }
|
---|
1698 |
|
---|
1699 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CONT_FREE):
|
---|
1700 | {
|
---|
1701 | /* validate */
|
---|
1702 | PSUPCONTFREE pReq = (PSUPCONTFREE)pReqHdr;
|
---|
1703 | REQ_CHECK_SIZES(SUP_IOCTL_CONT_FREE);
|
---|
1704 |
|
---|
1705 | /* execute */
|
---|
1706 | pReq->Hdr.rc = SUPR0ContFree(pSession, (RTHCUINTPTR)pReq->u.In.pvR3);
|
---|
1707 | return 0;
|
---|
1708 | }
|
---|
1709 |
|
---|
1710 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_OPEN):
|
---|
1711 | {
|
---|
1712 | /* validate */
|
---|
1713 | PSUPLDROPEN pReq = (PSUPLDROPEN)pReqHdr;
|
---|
1714 | REQ_CHECK_SIZES(SUP_IOCTL_LDR_OPEN);
|
---|
1715 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageWithTabs > 0);
|
---|
1716 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageWithTabs < 16*_1M);
|
---|
1717 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageBits > 0);
|
---|
1718 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageBits > 0);
|
---|
1719 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImageBits < pReq->u.In.cbImageWithTabs);
|
---|
1720 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.szName[0]);
|
---|
1721 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, RTStrEnd(pReq->u.In.szName, sizeof(pReq->u.In.szName)));
|
---|
1722 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, supdrvIsLdrModuleNameValid(pReq->u.In.szName));
|
---|
1723 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, RTStrEnd(pReq->u.In.szFilename, sizeof(pReq->u.In.szFilename)));
|
---|
1724 |
|
---|
1725 | /* execute */
|
---|
1726 | pReq->Hdr.rc = supdrvIOCtl_LdrOpen(pDevExt, pSession, pReq);
|
---|
1727 | return 0;
|
---|
1728 | }
|
---|
1729 |
|
---|
1730 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_LOAD):
|
---|
1731 | {
|
---|
1732 | /* validate */
|
---|
1733 | PSUPLDRLOAD pReq = (PSUPLDRLOAD)pReqHdr;
|
---|
1734 | REQ_CHECK_EXPR(Name, pReq->Hdr.cbIn >= SUP_IOCTL_LDR_LOAD_SIZE_IN(32));
|
---|
1735 | REQ_CHECK_SIZES_EX(SUP_IOCTL_LDR_LOAD, SUP_IOCTL_LDR_LOAD_SIZE_IN(pReq->u.In.cbImageWithTabs), SUP_IOCTL_LDR_LOAD_SIZE_OUT);
|
---|
1736 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_LOAD, pReq->u.In.cSymbols <= 16384);
|
---|
1737 | REQ_CHECK_EXPR_FMT( !pReq->u.In.cSymbols
|
---|
1738 | || ( pReq->u.In.offSymbols < pReq->u.In.cbImageWithTabs
|
---|
1739 | && pReq->u.In.offSymbols + pReq->u.In.cSymbols * sizeof(SUPLDRSYM) <= pReq->u.In.cbImageWithTabs),
|
---|
1740 | ("SUP_IOCTL_LDR_LOAD: offSymbols=%#lx cSymbols=%#lx cbImageWithTabs=%#lx\n", (long)pReq->u.In.offSymbols,
|
---|
1741 | (long)pReq->u.In.cSymbols, (long)pReq->u.In.cbImageWithTabs));
|
---|
1742 | REQ_CHECK_EXPR_FMT( !pReq->u.In.cbStrTab
|
---|
1743 | || ( pReq->u.In.offStrTab < pReq->u.In.cbImageWithTabs
|
---|
1744 | && pReq->u.In.offStrTab + pReq->u.In.cbStrTab <= pReq->u.In.cbImageWithTabs
|
---|
1745 | && pReq->u.In.cbStrTab <= pReq->u.In.cbImageWithTabs),
|
---|
1746 | ("SUP_IOCTL_LDR_LOAD: offStrTab=%#lx cbStrTab=%#lx cbImageWithTabs=%#lx\n", (long)pReq->u.In.offStrTab,
|
---|
1747 | (long)pReq->u.In.cbStrTab, (long)pReq->u.In.cbImageWithTabs));
|
---|
1748 |
|
---|
1749 | if (pReq->u.In.cSymbols)
|
---|
1750 | {
|
---|
1751 | uint32_t i;
|
---|
1752 | PSUPLDRSYM paSyms = (PSUPLDRSYM)&pReq->u.In.abImage[pReq->u.In.offSymbols];
|
---|
1753 | for (i = 0; i < pReq->u.In.cSymbols; i++)
|
---|
1754 | {
|
---|
1755 | REQ_CHECK_EXPR_FMT(paSyms[i].offSymbol < pReq->u.In.cbImageWithTabs,
|
---|
1756 | ("SUP_IOCTL_LDR_LOAD: sym #%ld: symb off %#lx (max=%#lx)\n", (long)i, (long)paSyms[i].offSymbol, (long)pReq->u.In.cbImageWithTabs));
|
---|
1757 | REQ_CHECK_EXPR_FMT(paSyms[i].offName < pReq->u.In.cbStrTab,
|
---|
1758 | ("SUP_IOCTL_LDR_LOAD: sym #%ld: name off %#lx (max=%#lx)\n", (long)i, (long)paSyms[i].offName, (long)pReq->u.In.cbImageWithTabs));
|
---|
1759 | REQ_CHECK_EXPR_FMT(RTStrEnd((char const *)&pReq->u.In.abImage[pReq->u.In.offStrTab + paSyms[i].offName],
|
---|
1760 | pReq->u.In.cbStrTab - paSyms[i].offName),
|
---|
1761 | ("SUP_IOCTL_LDR_LOAD: sym #%ld: unterminated name! (%#lx / %#lx)\n", (long)i, (long)paSyms[i].offName, (long)pReq->u.In.cbImageWithTabs));
|
---|
1762 | }
|
---|
1763 | }
|
---|
1764 |
|
---|
1765 | /* execute */
|
---|
1766 | pReq->Hdr.rc = supdrvIOCtl_LdrLoad(pDevExt, pSession, pReq);
|
---|
1767 | return 0;
|
---|
1768 | }
|
---|
1769 |
|
---|
1770 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_FREE):
|
---|
1771 | {
|
---|
1772 | /* validate */
|
---|
1773 | PSUPLDRFREE pReq = (PSUPLDRFREE)pReqHdr;
|
---|
1774 | REQ_CHECK_SIZES(SUP_IOCTL_LDR_FREE);
|
---|
1775 |
|
---|
1776 | /* execute */
|
---|
1777 | pReq->Hdr.rc = supdrvIOCtl_LdrFree(pDevExt, pSession, pReq);
|
---|
1778 | return 0;
|
---|
1779 | }
|
---|
1780 |
|
---|
1781 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_LOCK_DOWN):
|
---|
1782 | {
|
---|
1783 | /* validate */
|
---|
1784 | REQ_CHECK_SIZES(SUP_IOCTL_LDR_LOCK_DOWN);
|
---|
1785 |
|
---|
1786 | /* execute */
|
---|
1787 | pReqHdr->rc = supdrvIOCtl_LdrLockDown(pDevExt);
|
---|
1788 | return 0;
|
---|
1789 | }
|
---|
1790 |
|
---|
1791 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_GET_SYMBOL):
|
---|
1792 | {
|
---|
1793 | /* validate */
|
---|
1794 | PSUPLDRGETSYMBOL pReq = (PSUPLDRGETSYMBOL)pReqHdr;
|
---|
1795 | REQ_CHECK_SIZES(SUP_IOCTL_LDR_GET_SYMBOL);
|
---|
1796 | REQ_CHECK_EXPR(SUP_IOCTL_LDR_GET_SYMBOL, RTStrEnd(pReq->u.In.szSymbol, sizeof(pReq->u.In.szSymbol)));
|
---|
1797 |
|
---|
1798 | /* execute */
|
---|
1799 | pReq->Hdr.rc = supdrvIOCtl_LdrGetSymbol(pDevExt, pSession, pReq);
|
---|
1800 | return 0;
|
---|
1801 | }
|
---|
1802 |
|
---|
1803 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CALL_VMMR0_NO_SIZE()):
|
---|
1804 | {
|
---|
1805 | /* validate */
|
---|
1806 | PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)pReqHdr;
|
---|
1807 | Log4(("SUP_IOCTL_CALL_VMMR0: op=%u in=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
1808 | pReq->u.In.uOperation, pReq->Hdr.cbIn, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
1809 |
|
---|
1810 | if (pReq->Hdr.cbIn == SUP_IOCTL_CALL_VMMR0_SIZE(0))
|
---|
1811 | {
|
---|
1812 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_VMMR0, SUP_IOCTL_CALL_VMMR0_SIZE_IN(0), SUP_IOCTL_CALL_VMMR0_SIZE_OUT(0));
|
---|
1813 |
|
---|
1814 | /* execute */
|
---|
1815 | if (RT_LIKELY(pDevExt->pfnVMMR0EntryEx))
|
---|
1816 | {
|
---|
1817 | if (pReq->u.In.pVMR0 == NULL)
|
---|
1818 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(NULL, NULL, pReq->u.In.idCpu,
|
---|
1819 | pReq->u.In.uOperation, NULL, pReq->u.In.u64Arg, pSession);
|
---|
1820 | else if (pReq->u.In.pVMR0 == pSession->pSessionVM)
|
---|
1821 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(pSession->pSessionGVM, pSession->pSessionVM, pReq->u.In.idCpu,
|
---|
1822 | pReq->u.In.uOperation, NULL, pReq->u.In.u64Arg, pSession);
|
---|
1823 | else
|
---|
1824 | pReq->Hdr.rc = VERR_INVALID_VM_HANDLE;
|
---|
1825 | }
|
---|
1826 | else
|
---|
1827 | pReq->Hdr.rc = VERR_WRONG_ORDER;
|
---|
1828 | }
|
---|
1829 | else
|
---|
1830 | {
|
---|
1831 | PSUPVMMR0REQHDR pVMMReq = (PSUPVMMR0REQHDR)&pReq->abReqPkt[0];
|
---|
1832 | REQ_CHECK_EXPR_FMT(pReq->Hdr.cbIn >= SUP_IOCTL_CALL_VMMR0_SIZE(sizeof(SUPVMMR0REQHDR)),
|
---|
1833 | ("SUP_IOCTL_CALL_VMMR0: cbIn=%#x < %#lx\n", pReq->Hdr.cbIn, SUP_IOCTL_CALL_VMMR0_SIZE(sizeof(SUPVMMR0REQHDR))));
|
---|
1834 | REQ_CHECK_EXPR(SUP_IOCTL_CALL_VMMR0, pVMMReq->u32Magic == SUPVMMR0REQHDR_MAGIC);
|
---|
1835 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_VMMR0, SUP_IOCTL_CALL_VMMR0_SIZE_IN(pVMMReq->cbReq), SUP_IOCTL_CALL_VMMR0_SIZE_OUT(pVMMReq->cbReq));
|
---|
1836 |
|
---|
1837 | /* execute */
|
---|
1838 | if (RT_LIKELY(pDevExt->pfnVMMR0EntryEx))
|
---|
1839 | {
|
---|
1840 | if (pReq->u.In.pVMR0 == NULL)
|
---|
1841 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(NULL, NULL, pReq->u.In.idCpu,
|
---|
1842 | pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
|
---|
1843 | else if (pReq->u.In.pVMR0 == pSession->pSessionVM)
|
---|
1844 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(pSession->pSessionGVM, pSession->pSessionVM, pReq->u.In.idCpu,
|
---|
1845 | pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
|
---|
1846 | else
|
---|
1847 | pReq->Hdr.rc = VERR_INVALID_VM_HANDLE;
|
---|
1848 | }
|
---|
1849 | else
|
---|
1850 | pReq->Hdr.rc = VERR_WRONG_ORDER;
|
---|
1851 | }
|
---|
1852 |
|
---|
1853 | if ( RT_FAILURE(pReq->Hdr.rc)
|
---|
1854 | && pReq->Hdr.rc != VERR_INTERRUPTED
|
---|
1855 | && pReq->Hdr.rc != VERR_TIMEOUT)
|
---|
1856 | Log(("SUP_IOCTL_CALL_VMMR0: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
1857 | pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
1858 | else
|
---|
1859 | Log4(("SUP_IOCTL_CALL_VMMR0: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
1860 | pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
1861 | return 0;
|
---|
1862 | }
|
---|
1863 |
|
---|
1864 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CALL_VMMR0_BIG):
|
---|
1865 | {
|
---|
1866 | /* validate */
|
---|
1867 | PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)pReqHdr;
|
---|
1868 | PSUPVMMR0REQHDR pVMMReq;
|
---|
1869 | Log4(("SUP_IOCTL_CALL_VMMR0_BIG: op=%u in=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
1870 | pReq->u.In.uOperation, pReq->Hdr.cbIn, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
1871 |
|
---|
1872 | pVMMReq = (PSUPVMMR0REQHDR)&pReq->abReqPkt[0];
|
---|
1873 | REQ_CHECK_EXPR_FMT(pReq->Hdr.cbIn >= SUP_IOCTL_CALL_VMMR0_BIG_SIZE(sizeof(SUPVMMR0REQHDR)),
|
---|
1874 | ("SUP_IOCTL_CALL_VMMR0_BIG: cbIn=%#x < %#lx\n", pReq->Hdr.cbIn, SUP_IOCTL_CALL_VMMR0_BIG_SIZE(sizeof(SUPVMMR0REQHDR))));
|
---|
1875 | REQ_CHECK_EXPR(SUP_IOCTL_CALL_VMMR0_BIG, pVMMReq->u32Magic == SUPVMMR0REQHDR_MAGIC);
|
---|
1876 | 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));
|
---|
1877 |
|
---|
1878 | /* execute */
|
---|
1879 | if (RT_LIKELY(pDevExt->pfnVMMR0EntryEx))
|
---|
1880 | {
|
---|
1881 | if (pReq->u.In.pVMR0 == NULL)
|
---|
1882 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(NULL, NULL, pReq->u.In.idCpu, pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
|
---|
1883 | else if (pReq->u.In.pVMR0 == pSession->pSessionVM)
|
---|
1884 | pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(pSession->pSessionGVM, pSession->pSessionVM, pReq->u.In.idCpu,
|
---|
1885 | pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
|
---|
1886 | else
|
---|
1887 | pReq->Hdr.rc = VERR_INVALID_VM_HANDLE;
|
---|
1888 | }
|
---|
1889 | else
|
---|
1890 | pReq->Hdr.rc = VERR_WRONG_ORDER;
|
---|
1891 |
|
---|
1892 | if ( RT_FAILURE(pReq->Hdr.rc)
|
---|
1893 | && pReq->Hdr.rc != VERR_INTERRUPTED
|
---|
1894 | && pReq->Hdr.rc != VERR_TIMEOUT)
|
---|
1895 | Log(("SUP_IOCTL_CALL_VMMR0_BIG: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
1896 | pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
1897 | else
|
---|
1898 | Log4(("SUP_IOCTL_CALL_VMMR0_BIG: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
1899 | pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
1900 | return 0;
|
---|
1901 | }
|
---|
1902 |
|
---|
1903 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GET_PAGING_MODE):
|
---|
1904 | {
|
---|
1905 | /* validate */
|
---|
1906 | PSUPGETPAGINGMODE pReq = (PSUPGETPAGINGMODE)pReqHdr;
|
---|
1907 | REQ_CHECK_SIZES(SUP_IOCTL_GET_PAGING_MODE);
|
---|
1908 |
|
---|
1909 | /* execute */
|
---|
1910 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
1911 | pReq->u.Out.enmMode = SUPR0GetPagingMode();
|
---|
1912 | return 0;
|
---|
1913 | }
|
---|
1914 |
|
---|
1915 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LOW_ALLOC):
|
---|
1916 | {
|
---|
1917 | /* validate */
|
---|
1918 | PSUPLOWALLOC pReq = (PSUPLOWALLOC)pReqHdr;
|
---|
1919 | REQ_CHECK_EXPR(SUP_IOCTL_LOW_ALLOC, pReq->Hdr.cbIn <= SUP_IOCTL_LOW_ALLOC_SIZE_IN);
|
---|
1920 | REQ_CHECK_SIZES_EX(SUP_IOCTL_LOW_ALLOC, SUP_IOCTL_LOW_ALLOC_SIZE_IN, SUP_IOCTL_LOW_ALLOC_SIZE_OUT(pReq->u.In.cPages));
|
---|
1921 |
|
---|
1922 | /* execute */
|
---|
1923 | pReq->Hdr.rc = SUPR0LowAlloc(pSession, pReq->u.In.cPages, &pReq->u.Out.pvR0, &pReq->u.Out.pvR3, &pReq->u.Out.aPages[0]);
|
---|
1924 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
1925 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
1926 | return 0;
|
---|
1927 | }
|
---|
1928 |
|
---|
1929 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LOW_FREE):
|
---|
1930 | {
|
---|
1931 | /* validate */
|
---|
1932 | PSUPLOWFREE pReq = (PSUPLOWFREE)pReqHdr;
|
---|
1933 | REQ_CHECK_SIZES(SUP_IOCTL_LOW_FREE);
|
---|
1934 |
|
---|
1935 | /* execute */
|
---|
1936 | pReq->Hdr.rc = SUPR0LowFree(pSession, (RTHCUINTPTR)pReq->u.In.pvR3);
|
---|
1937 | return 0;
|
---|
1938 | }
|
---|
1939 |
|
---|
1940 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GIP_MAP):
|
---|
1941 | {
|
---|
1942 | /* validate */
|
---|
1943 | PSUPGIPMAP pReq = (PSUPGIPMAP)pReqHdr;
|
---|
1944 | REQ_CHECK_SIZES(SUP_IOCTL_GIP_MAP);
|
---|
1945 |
|
---|
1946 | /* execute */
|
---|
1947 | pReq->Hdr.rc = SUPR0GipMap(pSession, &pReq->u.Out.pGipR3, &pReq->u.Out.HCPhysGip);
|
---|
1948 | if (RT_SUCCESS(pReq->Hdr.rc))
|
---|
1949 | pReq->u.Out.pGipR0 = pDevExt->pGip;
|
---|
1950 | return 0;
|
---|
1951 | }
|
---|
1952 |
|
---|
1953 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GIP_UNMAP):
|
---|
1954 | {
|
---|
1955 | /* validate */
|
---|
1956 | PSUPGIPUNMAP pReq = (PSUPGIPUNMAP)pReqHdr;
|
---|
1957 | REQ_CHECK_SIZES(SUP_IOCTL_GIP_UNMAP);
|
---|
1958 |
|
---|
1959 | /* execute */
|
---|
1960 | pReq->Hdr.rc = SUPR0GipUnmap(pSession);
|
---|
1961 | return 0;
|
---|
1962 | }
|
---|
1963 |
|
---|
1964 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_SET_VM_FOR_FAST):
|
---|
1965 | {
|
---|
1966 | /* validate */
|
---|
1967 | PSUPSETVMFORFAST pReq = (PSUPSETVMFORFAST)pReqHdr;
|
---|
1968 | REQ_CHECK_SIZES(SUP_IOCTL_SET_VM_FOR_FAST);
|
---|
1969 | REQ_CHECK_EXPR_FMT( !pReq->u.In.pVMR0
|
---|
1970 | || ( VALID_PTR(pReq->u.In.pVMR0)
|
---|
1971 | && !((uintptr_t)pReq->u.In.pVMR0 & (PAGE_SIZE - 1))),
|
---|
1972 | ("SUP_IOCTL_SET_VM_FOR_FAST: pVMR0=%p!\n", pReq->u.In.pVMR0));
|
---|
1973 |
|
---|
1974 | /* execute */
|
---|
1975 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
1976 | if (pSession->pSessionVM == pReq->u.In.pVMR0)
|
---|
1977 | {
|
---|
1978 | if (pSession->pFastIoCtrlVM == NULL)
|
---|
1979 | {
|
---|
1980 | pSession->pFastIoCtrlVM = pSession->pSessionVM;
|
---|
1981 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
1982 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
1983 | }
|
---|
1984 | else
|
---|
1985 | {
|
---|
1986 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
1987 | OSDBGPRINT(("SUP_IOCTL_SET_VM_FOR_FAST: pSession->pFastIoCtrlVM=%p! (pVMR0=%p)\n",
|
---|
1988 | pSession->pFastIoCtrlVM, pReq->u.In.pVMR0));
|
---|
1989 | pReq->Hdr.rc = VERR_ALREADY_EXISTS;
|
---|
1990 | }
|
---|
1991 | }
|
---|
1992 | else
|
---|
1993 | {
|
---|
1994 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
1995 | OSDBGPRINT(("SUP_IOCTL_SET_VM_FOR_FAST: pSession->pSessionVM=%p vs pVMR0=%p)\n",
|
---|
1996 | pSession->pSessionVM, pReq->u.In.pVMR0));
|
---|
1997 | pReq->Hdr.rc = pSession->pSessionVM ? VERR_ACCESS_DENIED : VERR_WRONG_ORDER;
|
---|
1998 | }
|
---|
1999 | return 0;
|
---|
2000 | }
|
---|
2001 |
|
---|
2002 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_ALLOC_EX):
|
---|
2003 | {
|
---|
2004 | /* validate */
|
---|
2005 | PSUPPAGEALLOCEX pReq = (PSUPPAGEALLOCEX)pReqHdr;
|
---|
2006 | REQ_CHECK_EXPR(SUP_IOCTL_PAGE_ALLOC_EX, pReq->Hdr.cbIn <= SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN);
|
---|
2007 | 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));
|
---|
2008 | REQ_CHECK_EXPR_FMT(pReq->u.In.fKernelMapping || pReq->u.In.fUserMapping,
|
---|
2009 | ("SUP_IOCTL_PAGE_ALLOC_EX: No mapping requested!\n"));
|
---|
2010 | REQ_CHECK_EXPR_FMT(pReq->u.In.fUserMapping,
|
---|
2011 | ("SUP_IOCTL_PAGE_ALLOC_EX: Must have user mapping!\n"));
|
---|
2012 | REQ_CHECK_EXPR_FMT(!pReq->u.In.fReserved0 && !pReq->u.In.fReserved1,
|
---|
2013 | ("SUP_IOCTL_PAGE_ALLOC_EX: fReserved0=%d fReserved1=%d\n", pReq->u.In.fReserved0, pReq->u.In.fReserved1));
|
---|
2014 |
|
---|
2015 | /* execute */
|
---|
2016 | pReq->Hdr.rc = SUPR0PageAllocEx(pSession, pReq->u.In.cPages, 0 /* fFlags */,
|
---|
2017 | pReq->u.In.fUserMapping ? &pReq->u.Out.pvR3 : NULL,
|
---|
2018 | pReq->u.In.fKernelMapping ? &pReq->u.Out.pvR0 : NULL,
|
---|
2019 | &pReq->u.Out.aPages[0]);
|
---|
2020 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2021 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2022 | return 0;
|
---|
2023 | }
|
---|
2024 |
|
---|
2025 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_MAP_KERNEL):
|
---|
2026 | {
|
---|
2027 | /* validate */
|
---|
2028 | PSUPPAGEMAPKERNEL pReq = (PSUPPAGEMAPKERNEL)pReqHdr;
|
---|
2029 | REQ_CHECK_SIZES(SUP_IOCTL_PAGE_MAP_KERNEL);
|
---|
2030 | REQ_CHECK_EXPR_FMT(!pReq->u.In.fFlags, ("SUP_IOCTL_PAGE_MAP_KERNEL: fFlags=%#x! MBZ\n", pReq->u.In.fFlags));
|
---|
2031 | REQ_CHECK_EXPR_FMT(!(pReq->u.In.offSub & PAGE_OFFSET_MASK), ("SUP_IOCTL_PAGE_MAP_KERNEL: offSub=%#x\n", pReq->u.In.offSub));
|
---|
2032 | REQ_CHECK_EXPR_FMT(pReq->u.In.cbSub && !(pReq->u.In.cbSub & PAGE_OFFSET_MASK),
|
---|
2033 | ("SUP_IOCTL_PAGE_MAP_KERNEL: cbSub=%#x\n", pReq->u.In.cbSub));
|
---|
2034 |
|
---|
2035 | /* execute */
|
---|
2036 | pReq->Hdr.rc = SUPR0PageMapKernel(pSession, pReq->u.In.pvR3, pReq->u.In.offSub, pReq->u.In.cbSub,
|
---|
2037 | pReq->u.In.fFlags, &pReq->u.Out.pvR0);
|
---|
2038 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2039 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2040 | return 0;
|
---|
2041 | }
|
---|
2042 |
|
---|
2043 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_PROTECT):
|
---|
2044 | {
|
---|
2045 | /* validate */
|
---|
2046 | PSUPPAGEPROTECT pReq = (PSUPPAGEPROTECT)pReqHdr;
|
---|
2047 | REQ_CHECK_SIZES(SUP_IOCTL_PAGE_PROTECT);
|
---|
2048 | REQ_CHECK_EXPR_FMT(!(pReq->u.In.fProt & ~(RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC | RTMEM_PROT_NONE)),
|
---|
2049 | ("SUP_IOCTL_PAGE_PROTECT: fProt=%#x!\n", pReq->u.In.fProt));
|
---|
2050 | REQ_CHECK_EXPR_FMT(!(pReq->u.In.offSub & PAGE_OFFSET_MASK), ("SUP_IOCTL_PAGE_PROTECT: offSub=%#x\n", pReq->u.In.offSub));
|
---|
2051 | REQ_CHECK_EXPR_FMT(pReq->u.In.cbSub && !(pReq->u.In.cbSub & PAGE_OFFSET_MASK),
|
---|
2052 | ("SUP_IOCTL_PAGE_PROTECT: cbSub=%#x\n", pReq->u.In.cbSub));
|
---|
2053 |
|
---|
2054 | /* execute */
|
---|
2055 | 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);
|
---|
2056 | return 0;
|
---|
2057 | }
|
---|
2058 |
|
---|
2059 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_FREE):
|
---|
2060 | {
|
---|
2061 | /* validate */
|
---|
2062 | PSUPPAGEFREE pReq = (PSUPPAGEFREE)pReqHdr;
|
---|
2063 | REQ_CHECK_SIZES(SUP_IOCTL_PAGE_FREE);
|
---|
2064 |
|
---|
2065 | /* execute */
|
---|
2066 | pReq->Hdr.rc = SUPR0PageFree(pSession, pReq->u.In.pvR3);
|
---|
2067 | return 0;
|
---|
2068 | }
|
---|
2069 |
|
---|
2070 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CALL_SERVICE_NO_SIZE()):
|
---|
2071 | {
|
---|
2072 | /* validate */
|
---|
2073 | PSUPCALLSERVICE pReq = (PSUPCALLSERVICE)pReqHdr;
|
---|
2074 | Log4(("SUP_IOCTL_CALL_SERVICE: op=%u in=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
2075 | pReq->u.In.uOperation, pReq->Hdr.cbIn, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
2076 |
|
---|
2077 | if (pReq->Hdr.cbIn == SUP_IOCTL_CALL_SERVICE_SIZE(0))
|
---|
2078 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_SERVICE, SUP_IOCTL_CALL_SERVICE_SIZE_IN(0), SUP_IOCTL_CALL_SERVICE_SIZE_OUT(0));
|
---|
2079 | else
|
---|
2080 | {
|
---|
2081 | PSUPR0SERVICEREQHDR pSrvReq = (PSUPR0SERVICEREQHDR)&pReq->abReqPkt[0];
|
---|
2082 | REQ_CHECK_EXPR_FMT(pReq->Hdr.cbIn >= SUP_IOCTL_CALL_SERVICE_SIZE(sizeof(SUPR0SERVICEREQHDR)),
|
---|
2083 | ("SUP_IOCTL_CALL_SERVICE: cbIn=%#x < %#lx\n", pReq->Hdr.cbIn, SUP_IOCTL_CALL_SERVICE_SIZE(sizeof(SUPR0SERVICEREQHDR))));
|
---|
2084 | REQ_CHECK_EXPR(SUP_IOCTL_CALL_SERVICE, pSrvReq->u32Magic == SUPR0SERVICEREQHDR_MAGIC);
|
---|
2085 | REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_SERVICE, SUP_IOCTL_CALL_SERVICE_SIZE_IN(pSrvReq->cbReq), SUP_IOCTL_CALL_SERVICE_SIZE_OUT(pSrvReq->cbReq));
|
---|
2086 | }
|
---|
2087 | REQ_CHECK_EXPR(SUP_IOCTL_CALL_SERVICE, RTStrEnd(pReq->u.In.szName, sizeof(pReq->u.In.szName)));
|
---|
2088 |
|
---|
2089 | /* execute */
|
---|
2090 | pReq->Hdr.rc = supdrvIOCtl_CallServiceModule(pDevExt, pSession, pReq);
|
---|
2091 | return 0;
|
---|
2092 | }
|
---|
2093 |
|
---|
2094 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LOGGER_SETTINGS_NO_SIZE()):
|
---|
2095 | {
|
---|
2096 | /* validate */
|
---|
2097 | PSUPLOGGERSETTINGS pReq = (PSUPLOGGERSETTINGS)pReqHdr;
|
---|
2098 | size_t cbStrTab;
|
---|
2099 | REQ_CHECK_SIZE_OUT(SUP_IOCTL_LOGGER_SETTINGS, SUP_IOCTL_LOGGER_SETTINGS_SIZE_OUT);
|
---|
2100 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->Hdr.cbIn >= SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(1));
|
---|
2101 | cbStrTab = pReq->Hdr.cbIn - SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(0);
|
---|
2102 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.offGroups < cbStrTab);
|
---|
2103 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.offFlags < cbStrTab);
|
---|
2104 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.offDestination < cbStrTab);
|
---|
2105 | REQ_CHECK_EXPR_FMT(pReq->u.In.szStrings[cbStrTab - 1] == '\0',
|
---|
2106 | ("SUP_IOCTL_LOGGER_SETTINGS: cbIn=%#x cbStrTab=%#zx LastChar=%d\n",
|
---|
2107 | pReq->Hdr.cbIn, cbStrTab, pReq->u.In.szStrings[cbStrTab - 1]));
|
---|
2108 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.fWhich <= SUPLOGGERSETTINGS_WHICH_RELEASE);
|
---|
2109 | REQ_CHECK_EXPR(SUP_IOCTL_LOGGER_SETTINGS, pReq->u.In.fWhat <= SUPLOGGERSETTINGS_WHAT_DESTROY);
|
---|
2110 |
|
---|
2111 | /* execute */
|
---|
2112 | pReq->Hdr.rc = supdrvIOCtl_LoggerSettings(pReq);
|
---|
2113 | return 0;
|
---|
2114 | }
|
---|
2115 |
|
---|
2116 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_SEM_OP2):
|
---|
2117 | {
|
---|
2118 | /* validate */
|
---|
2119 | PSUPSEMOP2 pReq = (PSUPSEMOP2)pReqHdr;
|
---|
2120 | REQ_CHECK_SIZES_EX(SUP_IOCTL_SEM_OP2, SUP_IOCTL_SEM_OP2_SIZE_IN, SUP_IOCTL_SEM_OP2_SIZE_OUT);
|
---|
2121 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP2, pReq->u.In.uReserved == 0);
|
---|
2122 |
|
---|
2123 | /* execute */
|
---|
2124 | switch (pReq->u.In.uType)
|
---|
2125 | {
|
---|
2126 | case SUP_SEM_TYPE_EVENT:
|
---|
2127 | {
|
---|
2128 | SUPSEMEVENT hEvent = (SUPSEMEVENT)(uintptr_t)pReq->u.In.hSem;
|
---|
2129 | switch (pReq->u.In.uOp)
|
---|
2130 | {
|
---|
2131 | case SUPSEMOP2_WAIT_MS_REL:
|
---|
2132 | pReq->Hdr.rc = SUPSemEventWaitNoResume(pSession, hEvent, pReq->u.In.uArg.cRelMsTimeout);
|
---|
2133 | break;
|
---|
2134 | case SUPSEMOP2_WAIT_NS_ABS:
|
---|
2135 | pReq->Hdr.rc = SUPSemEventWaitNsAbsIntr(pSession, hEvent, pReq->u.In.uArg.uAbsNsTimeout);
|
---|
2136 | break;
|
---|
2137 | case SUPSEMOP2_WAIT_NS_REL:
|
---|
2138 | pReq->Hdr.rc = SUPSemEventWaitNsRelIntr(pSession, hEvent, pReq->u.In.uArg.cRelNsTimeout);
|
---|
2139 | break;
|
---|
2140 | case SUPSEMOP2_SIGNAL:
|
---|
2141 | pReq->Hdr.rc = SUPSemEventSignal(pSession, hEvent);
|
---|
2142 | break;
|
---|
2143 | case SUPSEMOP2_CLOSE:
|
---|
2144 | pReq->Hdr.rc = SUPSemEventClose(pSession, hEvent);
|
---|
2145 | break;
|
---|
2146 | case SUPSEMOP2_RESET:
|
---|
2147 | default:
|
---|
2148 | pReq->Hdr.rc = VERR_INVALID_FUNCTION;
|
---|
2149 | break;
|
---|
2150 | }
|
---|
2151 | break;
|
---|
2152 | }
|
---|
2153 |
|
---|
2154 | case SUP_SEM_TYPE_EVENT_MULTI:
|
---|
2155 | {
|
---|
2156 | SUPSEMEVENTMULTI hEventMulti = (SUPSEMEVENTMULTI)(uintptr_t)pReq->u.In.hSem;
|
---|
2157 | switch (pReq->u.In.uOp)
|
---|
2158 | {
|
---|
2159 | case SUPSEMOP2_WAIT_MS_REL:
|
---|
2160 | pReq->Hdr.rc = SUPSemEventMultiWaitNoResume(pSession, hEventMulti, pReq->u.In.uArg.cRelMsTimeout);
|
---|
2161 | break;
|
---|
2162 | case SUPSEMOP2_WAIT_NS_ABS:
|
---|
2163 | pReq->Hdr.rc = SUPSemEventMultiWaitNsAbsIntr(pSession, hEventMulti, pReq->u.In.uArg.uAbsNsTimeout);
|
---|
2164 | break;
|
---|
2165 | case SUPSEMOP2_WAIT_NS_REL:
|
---|
2166 | pReq->Hdr.rc = SUPSemEventMultiWaitNsRelIntr(pSession, hEventMulti, pReq->u.In.uArg.cRelNsTimeout);
|
---|
2167 | break;
|
---|
2168 | case SUPSEMOP2_SIGNAL:
|
---|
2169 | pReq->Hdr.rc = SUPSemEventMultiSignal(pSession, hEventMulti);
|
---|
2170 | break;
|
---|
2171 | case SUPSEMOP2_CLOSE:
|
---|
2172 | pReq->Hdr.rc = SUPSemEventMultiClose(pSession, hEventMulti);
|
---|
2173 | break;
|
---|
2174 | case SUPSEMOP2_RESET:
|
---|
2175 | pReq->Hdr.rc = SUPSemEventMultiReset(pSession, hEventMulti);
|
---|
2176 | break;
|
---|
2177 | default:
|
---|
2178 | pReq->Hdr.rc = VERR_INVALID_FUNCTION;
|
---|
2179 | break;
|
---|
2180 | }
|
---|
2181 | break;
|
---|
2182 | }
|
---|
2183 |
|
---|
2184 | default:
|
---|
2185 | pReq->Hdr.rc = VERR_INVALID_PARAMETER;
|
---|
2186 | break;
|
---|
2187 | }
|
---|
2188 | return 0;
|
---|
2189 | }
|
---|
2190 |
|
---|
2191 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_SEM_OP3):
|
---|
2192 | {
|
---|
2193 | /* validate */
|
---|
2194 | PSUPSEMOP3 pReq = (PSUPSEMOP3)pReqHdr;
|
---|
2195 | REQ_CHECK_SIZES_EX(SUP_IOCTL_SEM_OP3, SUP_IOCTL_SEM_OP3_SIZE_IN, SUP_IOCTL_SEM_OP3_SIZE_OUT);
|
---|
2196 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, pReq->u.In.u32Reserved == 0 && pReq->u.In.u64Reserved == 0);
|
---|
2197 |
|
---|
2198 | /* execute */
|
---|
2199 | switch (pReq->u.In.uType)
|
---|
2200 | {
|
---|
2201 | case SUP_SEM_TYPE_EVENT:
|
---|
2202 | {
|
---|
2203 | SUPSEMEVENT hEvent = (SUPSEMEVENT)(uintptr_t)pReq->u.In.hSem;
|
---|
2204 | switch (pReq->u.In.uOp)
|
---|
2205 | {
|
---|
2206 | case SUPSEMOP3_CREATE:
|
---|
2207 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, hEvent == NIL_SUPSEMEVENT);
|
---|
2208 | pReq->Hdr.rc = SUPSemEventCreate(pSession, &hEvent);
|
---|
2209 | pReq->u.Out.hSem = (uint32_t)(uintptr_t)hEvent;
|
---|
2210 | break;
|
---|
2211 | case SUPSEMOP3_GET_RESOLUTION:
|
---|
2212 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, hEvent == NIL_SUPSEMEVENT);
|
---|
2213 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
2214 | pReq->Hdr.cbOut = sizeof(*pReq);
|
---|
2215 | pReq->u.Out.cNsResolution = SUPSemEventGetResolution(pSession);
|
---|
2216 | break;
|
---|
2217 | default:
|
---|
2218 | pReq->Hdr.rc = VERR_INVALID_FUNCTION;
|
---|
2219 | break;
|
---|
2220 | }
|
---|
2221 | break;
|
---|
2222 | }
|
---|
2223 |
|
---|
2224 | case SUP_SEM_TYPE_EVENT_MULTI:
|
---|
2225 | {
|
---|
2226 | SUPSEMEVENTMULTI hEventMulti = (SUPSEMEVENTMULTI)(uintptr_t)pReq->u.In.hSem;
|
---|
2227 | switch (pReq->u.In.uOp)
|
---|
2228 | {
|
---|
2229 | case SUPSEMOP3_CREATE:
|
---|
2230 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, hEventMulti == NIL_SUPSEMEVENTMULTI);
|
---|
2231 | pReq->Hdr.rc = SUPSemEventMultiCreate(pSession, &hEventMulti);
|
---|
2232 | pReq->u.Out.hSem = (uint32_t)(uintptr_t)hEventMulti;
|
---|
2233 | break;
|
---|
2234 | case SUPSEMOP3_GET_RESOLUTION:
|
---|
2235 | REQ_CHECK_EXPR(SUP_IOCTL_SEM_OP3, hEventMulti == NIL_SUPSEMEVENTMULTI);
|
---|
2236 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
2237 | pReq->u.Out.cNsResolution = SUPSemEventMultiGetResolution(pSession);
|
---|
2238 | break;
|
---|
2239 | default:
|
---|
2240 | pReq->Hdr.rc = VERR_INVALID_FUNCTION;
|
---|
2241 | break;
|
---|
2242 | }
|
---|
2243 | break;
|
---|
2244 | }
|
---|
2245 |
|
---|
2246 | default:
|
---|
2247 | pReq->Hdr.rc = VERR_INVALID_PARAMETER;
|
---|
2248 | break;
|
---|
2249 | }
|
---|
2250 | return 0;
|
---|
2251 | }
|
---|
2252 |
|
---|
2253 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_VT_CAPS):
|
---|
2254 | {
|
---|
2255 | /* validate */
|
---|
2256 | PSUPVTCAPS pReq = (PSUPVTCAPS)pReqHdr;
|
---|
2257 | REQ_CHECK_SIZES(SUP_IOCTL_VT_CAPS);
|
---|
2258 |
|
---|
2259 | /* execute */
|
---|
2260 | pReq->Hdr.rc = SUPR0QueryVTCaps(pSession, &pReq->u.Out.Caps);
|
---|
2261 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2262 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2263 | return 0;
|
---|
2264 | }
|
---|
2265 |
|
---|
2266 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_OPEN):
|
---|
2267 | {
|
---|
2268 | /* validate */
|
---|
2269 | PSUPTRACEROPEN pReq = (PSUPTRACEROPEN)pReqHdr;
|
---|
2270 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_OPEN);
|
---|
2271 |
|
---|
2272 | /* execute */
|
---|
2273 | pReq->Hdr.rc = supdrvIOCtl_TracerOpen(pDevExt, pSession, pReq->u.In.uCookie, pReq->u.In.uArg);
|
---|
2274 | return 0;
|
---|
2275 | }
|
---|
2276 |
|
---|
2277 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_CLOSE):
|
---|
2278 | {
|
---|
2279 | /* validate */
|
---|
2280 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_CLOSE);
|
---|
2281 |
|
---|
2282 | /* execute */
|
---|
2283 | pReqHdr->rc = supdrvIOCtl_TracerClose(pDevExt, pSession);
|
---|
2284 | return 0;
|
---|
2285 | }
|
---|
2286 |
|
---|
2287 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_IOCTL):
|
---|
2288 | {
|
---|
2289 | /* validate */
|
---|
2290 | PSUPTRACERIOCTL pReq = (PSUPTRACERIOCTL)pReqHdr;
|
---|
2291 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_IOCTL);
|
---|
2292 |
|
---|
2293 | /* execute */
|
---|
2294 | pReqHdr->rc = supdrvIOCtl_TracerIOCtl(pDevExt, pSession, pReq->u.In.uCmd, pReq->u.In.uArg, &pReq->u.Out.iRetVal);
|
---|
2295 | return 0;
|
---|
2296 | }
|
---|
2297 |
|
---|
2298 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_UMOD_REG):
|
---|
2299 | {
|
---|
2300 | /* validate */
|
---|
2301 | PSUPTRACERUMODREG pReq = (PSUPTRACERUMODREG)pReqHdr;
|
---|
2302 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_UMOD_REG);
|
---|
2303 | if (!RTStrEnd(pReq->u.In.szName, sizeof(pReq->u.In.szName)))
|
---|
2304 | return VERR_INVALID_PARAMETER;
|
---|
2305 |
|
---|
2306 | /* execute */
|
---|
2307 | pReqHdr->rc = supdrvIOCtl_TracerUmodRegister(pDevExt, pSession,
|
---|
2308 | pReq->u.In.R3PtrVtgHdr, pReq->u.In.uVtgHdrAddr,
|
---|
2309 | pReq->u.In.R3PtrStrTab, pReq->u.In.cbStrTab,
|
---|
2310 | pReq->u.In.szName, pReq->u.In.fFlags);
|
---|
2311 | return 0;
|
---|
2312 | }
|
---|
2313 |
|
---|
2314 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_UMOD_DEREG):
|
---|
2315 | {
|
---|
2316 | /* validate */
|
---|
2317 | PSUPTRACERUMODDEREG pReq = (PSUPTRACERUMODDEREG)pReqHdr;
|
---|
2318 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_UMOD_DEREG);
|
---|
2319 |
|
---|
2320 | /* execute */
|
---|
2321 | pReqHdr->rc = supdrvIOCtl_TracerUmodDeregister(pDevExt, pSession, pReq->u.In.pVtgHdr);
|
---|
2322 | return 0;
|
---|
2323 | }
|
---|
2324 |
|
---|
2325 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TRACER_UMOD_FIRE_PROBE):
|
---|
2326 | {
|
---|
2327 | /* validate */
|
---|
2328 | PSUPTRACERUMODFIREPROBE pReq = (PSUPTRACERUMODFIREPROBE)pReqHdr;
|
---|
2329 | REQ_CHECK_SIZES(SUP_IOCTL_TRACER_UMOD_FIRE_PROBE);
|
---|
2330 |
|
---|
2331 | supdrvIOCtl_TracerUmodProbeFire(pDevExt, pSession, &pReq->u.In);
|
---|
2332 | pReqHdr->rc = VINF_SUCCESS;
|
---|
2333 | return 0;
|
---|
2334 | }
|
---|
2335 |
|
---|
2336 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_MSR_PROBER):
|
---|
2337 | {
|
---|
2338 | /* validate */
|
---|
2339 | PSUPMSRPROBER pReq = (PSUPMSRPROBER)pReqHdr;
|
---|
2340 | REQ_CHECK_SIZES(SUP_IOCTL_MSR_PROBER);
|
---|
2341 | REQ_CHECK_EXPR(SUP_IOCTL_MSR_PROBER,
|
---|
2342 | pReq->u.In.enmOp > SUPMSRPROBEROP_INVALID && pReq->u.In.enmOp < SUPMSRPROBEROP_END);
|
---|
2343 |
|
---|
2344 | pReqHdr->rc = supdrvIOCtl_MsrProber(pDevExt, pReq);
|
---|
2345 | return 0;
|
---|
2346 | }
|
---|
2347 |
|
---|
2348 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_RESUME_SUSPENDED_KBDS):
|
---|
2349 | {
|
---|
2350 | /* validate */
|
---|
2351 | REQ_CHECK_SIZES(SUP_IOCTL_RESUME_SUSPENDED_KBDS);
|
---|
2352 |
|
---|
2353 | pReqHdr->rc = supdrvIOCtl_ResumeSuspendedKbds();
|
---|
2354 | return 0;
|
---|
2355 | }
|
---|
2356 |
|
---|
2357 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TSC_DELTA_MEASURE):
|
---|
2358 | {
|
---|
2359 | /* validate */
|
---|
2360 | PSUPTSCDELTAMEASURE pReq = (PSUPTSCDELTAMEASURE)pReqHdr;
|
---|
2361 | REQ_CHECK_SIZES(SUP_IOCTL_TSC_DELTA_MEASURE);
|
---|
2362 |
|
---|
2363 | pReqHdr->rc = supdrvIOCtl_TscDeltaMeasure(pDevExt, pSession, pReq);
|
---|
2364 | return 0;
|
---|
2365 | }
|
---|
2366 |
|
---|
2367 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_TSC_READ):
|
---|
2368 | {
|
---|
2369 | /* validate */
|
---|
2370 | PSUPTSCREAD pReq = (PSUPTSCREAD)pReqHdr;
|
---|
2371 | REQ_CHECK_SIZES(SUP_IOCTL_TSC_READ);
|
---|
2372 |
|
---|
2373 | pReqHdr->rc = supdrvIOCtl_TscRead(pDevExt, pSession, pReq);
|
---|
2374 | return 0;
|
---|
2375 | }
|
---|
2376 |
|
---|
2377 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GIP_SET_FLAGS):
|
---|
2378 | {
|
---|
2379 | /* validate */
|
---|
2380 | PSUPGIPSETFLAGS pReq = (PSUPGIPSETFLAGS)pReqHdr;
|
---|
2381 | REQ_CHECK_SIZES(SUP_IOCTL_GIP_SET_FLAGS);
|
---|
2382 |
|
---|
2383 | pReqHdr->rc = supdrvIOCtl_GipSetFlags(pDevExt, pSession, pReq->u.In.fOrMask, pReq->u.In.fAndMask);
|
---|
2384 | return 0;
|
---|
2385 | }
|
---|
2386 |
|
---|
2387 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_UCODE_REV):
|
---|
2388 | {
|
---|
2389 | /* validate */
|
---|
2390 | PSUPUCODEREV pReq = (PSUPUCODEREV)pReqHdr;
|
---|
2391 | REQ_CHECK_SIZES(SUP_IOCTL_UCODE_REV);
|
---|
2392 |
|
---|
2393 | /* execute */
|
---|
2394 | pReq->Hdr.rc = SUPR0QueryUcodeRev(pSession, &pReq->u.Out.MicrocodeRev);
|
---|
2395 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2396 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2397 | return 0;
|
---|
2398 | }
|
---|
2399 |
|
---|
2400 | default:
|
---|
2401 | Log(("Unknown IOCTL %#lx\n", (long)uIOCtl));
|
---|
2402 | break;
|
---|
2403 | }
|
---|
2404 | return VERR_GENERAL_FAILURE;
|
---|
2405 | }
|
---|
2406 |
|
---|
2407 |
|
---|
2408 | /**
|
---|
2409 | * I/O Control inner worker for the restricted operations.
|
---|
2410 | *
|
---|
2411 | * @returns IPRT status code.
|
---|
2412 | * @retval VERR_INVALID_PARAMETER if the request is invalid.
|
---|
2413 | *
|
---|
2414 | * @param uIOCtl Function number.
|
---|
2415 | * @param pDevExt Device extention.
|
---|
2416 | * @param pSession Session data.
|
---|
2417 | * @param pReqHdr The request header.
|
---|
2418 | */
|
---|
2419 | static int supdrvIOCtlInnerRestricted(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr)
|
---|
2420 | {
|
---|
2421 | /*
|
---|
2422 | * The switch.
|
---|
2423 | */
|
---|
2424 | switch (SUP_CTL_CODE_NO_SIZE(uIOCtl))
|
---|
2425 | {
|
---|
2426 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_COOKIE):
|
---|
2427 | {
|
---|
2428 | PSUPCOOKIE pReq = (PSUPCOOKIE)pReqHdr;
|
---|
2429 | REQ_CHECK_SIZES(SUP_IOCTL_COOKIE);
|
---|
2430 | if (strncmp(pReq->u.In.szMagic, SUPCOOKIE_MAGIC, sizeof(pReq->u.In.szMagic)))
|
---|
2431 | {
|
---|
2432 | OSDBGPRINT(("SUP_IOCTL_COOKIE: invalid magic %.16s\n", pReq->u.In.szMagic));
|
---|
2433 | pReq->Hdr.rc = VERR_INVALID_MAGIC;
|
---|
2434 | return 0;
|
---|
2435 | }
|
---|
2436 |
|
---|
2437 | /*
|
---|
2438 | * Match the version.
|
---|
2439 | * The current logic is very simple, match the major interface version.
|
---|
2440 | */
|
---|
2441 | if ( pReq->u.In.u32MinVersion > SUPDRV_IOC_VERSION
|
---|
2442 | || (pReq->u.In.u32MinVersion & 0xffff0000) != (SUPDRV_IOC_VERSION & 0xffff0000))
|
---|
2443 | {
|
---|
2444 | OSDBGPRINT(("SUP_IOCTL_COOKIE: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
|
---|
2445 | pReq->u.In.u32ReqVersion, pReq->u.In.u32MinVersion, SUPDRV_IOC_VERSION));
|
---|
2446 | pReq->u.Out.u32Cookie = 0xffffffff;
|
---|
2447 | pReq->u.Out.u32SessionCookie = 0xffffffff;
|
---|
2448 | pReq->u.Out.u32SessionVersion = 0xffffffff;
|
---|
2449 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
2450 | pReq->u.Out.pSession = NULL;
|
---|
2451 | pReq->u.Out.cFunctions = 0;
|
---|
2452 | pReq->Hdr.rc = VERR_VERSION_MISMATCH;
|
---|
2453 | return 0;
|
---|
2454 | }
|
---|
2455 |
|
---|
2456 | /*
|
---|
2457 | * Fill in return data and be gone.
|
---|
2458 | * N.B. The first one to change SUPDRV_IOC_VERSION shall makes sure that
|
---|
2459 | * u32SessionVersion <= u32ReqVersion!
|
---|
2460 | */
|
---|
2461 | /** @todo Somehow validate the client and negotiate a secure cookie... */
|
---|
2462 | pReq->u.Out.u32Cookie = pDevExt->u32Cookie;
|
---|
2463 | pReq->u.Out.u32SessionCookie = pSession->u32Cookie;
|
---|
2464 | pReq->u.Out.u32SessionVersion = SUPDRV_IOC_VERSION;
|
---|
2465 | pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
|
---|
2466 | pReq->u.Out.pSession = pSession;
|
---|
2467 | pReq->u.Out.cFunctions = 0;
|
---|
2468 | pReq->Hdr.rc = VINF_SUCCESS;
|
---|
2469 | return 0;
|
---|
2470 | }
|
---|
2471 |
|
---|
2472 | case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_VT_CAPS):
|
---|
2473 | {
|
---|
2474 | /* validate */
|
---|
2475 | PSUPVTCAPS pReq = (PSUPVTCAPS)pReqHdr;
|
---|
2476 | REQ_CHECK_SIZES(SUP_IOCTL_VT_CAPS);
|
---|
2477 |
|
---|
2478 | /* execute */
|
---|
2479 | pReq->Hdr.rc = SUPR0QueryVTCaps(pSession, &pReq->u.Out.Caps);
|
---|
2480 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2481 | pReq->Hdr.cbOut = sizeof(pReq->Hdr);
|
---|
2482 | return 0;
|
---|
2483 | }
|
---|
2484 |
|
---|
2485 | default:
|
---|
2486 | Log(("Unknown IOCTL %#lx\n", (long)uIOCtl));
|
---|
2487 | break;
|
---|
2488 | }
|
---|
2489 | return VERR_GENERAL_FAILURE;
|
---|
2490 | }
|
---|
2491 |
|
---|
2492 |
|
---|
2493 | /**
|
---|
2494 | * I/O Control worker.
|
---|
2495 | *
|
---|
2496 | * @returns IPRT status code.
|
---|
2497 | * @retval VERR_INVALID_PARAMETER if the request is invalid.
|
---|
2498 | *
|
---|
2499 | * @param uIOCtl Function number.
|
---|
2500 | * @param pDevExt Device extention.
|
---|
2501 | * @param pSession Session data.
|
---|
2502 | * @param pReqHdr The request header.
|
---|
2503 | * @param cbReq The size of the request buffer.
|
---|
2504 | */
|
---|
2505 | int VBOXCALL supdrvIOCtl(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr, size_t cbReq)
|
---|
2506 | {
|
---|
2507 | int rc;
|
---|
2508 | VBOXDRV_IOCTL_ENTRY(pSession, uIOCtl, pReqHdr);
|
---|
2509 |
|
---|
2510 | /*
|
---|
2511 | * Validate the request.
|
---|
2512 | */
|
---|
2513 | if (RT_UNLIKELY(cbReq < sizeof(*pReqHdr)))
|
---|
2514 | {
|
---|
2515 | OSDBGPRINT(("vboxdrv: Bad ioctl request size; cbReq=%#lx\n", (long)cbReq));
|
---|
2516 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2517 | return VERR_INVALID_PARAMETER;
|
---|
2518 | }
|
---|
2519 | if (RT_UNLIKELY( (pReqHdr->fFlags & SUPREQHDR_FLAGS_MAGIC_MASK) != SUPREQHDR_FLAGS_MAGIC
|
---|
2520 | || pReqHdr->cbIn < sizeof(*pReqHdr)
|
---|
2521 | || pReqHdr->cbIn > cbReq
|
---|
2522 | || pReqHdr->cbOut < sizeof(*pReqHdr)
|
---|
2523 | || pReqHdr->cbOut > cbReq))
|
---|
2524 | {
|
---|
2525 | OSDBGPRINT(("vboxdrv: Bad ioctl request header; cbIn=%#lx cbOut=%#lx fFlags=%#lx\n",
|
---|
2526 | (long)pReqHdr->cbIn, (long)pReqHdr->cbOut, (long)pReqHdr->fFlags));
|
---|
2527 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2528 | return VERR_INVALID_PARAMETER;
|
---|
2529 | }
|
---|
2530 | if (RT_UNLIKELY(!RT_VALID_PTR(pSession)))
|
---|
2531 | {
|
---|
2532 | OSDBGPRINT(("vboxdrv: Invalid pSession value %p (ioctl=%p)\n", pSession, (void *)uIOCtl));
|
---|
2533 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2534 | return VERR_INVALID_PARAMETER;
|
---|
2535 | }
|
---|
2536 | if (RT_UNLIKELY(uIOCtl == SUP_IOCTL_COOKIE))
|
---|
2537 | {
|
---|
2538 | if (pReqHdr->u32Cookie != SUPCOOKIE_INITIAL_COOKIE)
|
---|
2539 | {
|
---|
2540 | OSDBGPRINT(("SUP_IOCTL_COOKIE: bad cookie %#lx\n", (long)pReqHdr->u32Cookie));
|
---|
2541 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2542 | return VERR_INVALID_PARAMETER;
|
---|
2543 | }
|
---|
2544 | }
|
---|
2545 | else if (RT_UNLIKELY( pReqHdr->u32Cookie != pDevExt->u32Cookie
|
---|
2546 | || pReqHdr->u32SessionCookie != pSession->u32Cookie))
|
---|
2547 | {
|
---|
2548 | OSDBGPRINT(("vboxdrv: bad cookie %#lx / %#lx.\n", (long)pReqHdr->u32Cookie, (long)pReqHdr->u32SessionCookie));
|
---|
2549 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, VERR_INVALID_PARAMETER, VINF_SUCCESS);
|
---|
2550 | return VERR_INVALID_PARAMETER;
|
---|
2551 | }
|
---|
2552 |
|
---|
2553 | /*
|
---|
2554 | * Hand it to an inner function to avoid lots of unnecessary return tracepoints.
|
---|
2555 | */
|
---|
2556 | if (pSession->fUnrestricted)
|
---|
2557 | rc = supdrvIOCtlInnerUnrestricted(uIOCtl, pDevExt, pSession, pReqHdr);
|
---|
2558 | else
|
---|
2559 | rc = supdrvIOCtlInnerRestricted(uIOCtl, pDevExt, pSession, pReqHdr);
|
---|
2560 |
|
---|
2561 | VBOXDRV_IOCTL_RETURN(pSession, uIOCtl, pReqHdr, pReqHdr->rc, rc);
|
---|
2562 | return rc;
|
---|
2563 | }
|
---|
2564 |
|
---|
2565 |
|
---|
2566 | /**
|
---|
2567 | * Inter-Driver Communication (IDC) worker.
|
---|
2568 | *
|
---|
2569 | * @returns VBox status code.
|
---|
2570 | * @retval VINF_SUCCESS on success.
|
---|
2571 | * @retval VERR_INVALID_PARAMETER if the request is invalid.
|
---|
2572 | * @retval VERR_NOT_SUPPORTED if the request isn't supported.
|
---|
2573 | *
|
---|
2574 | * @param uReq The request (function) code.
|
---|
2575 | * @param pDevExt Device extention.
|
---|
2576 | * @param pSession Session data.
|
---|
2577 | * @param pReqHdr The request header.
|
---|
2578 | */
|
---|
2579 | int VBOXCALL supdrvIDC(uintptr_t uReq, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQHDR pReqHdr)
|
---|
2580 | {
|
---|
2581 | /*
|
---|
2582 | * The OS specific code has already validated the pSession
|
---|
2583 | * pointer, and the request size being greater or equal to
|
---|
2584 | * size of the header.
|
---|
2585 | *
|
---|
2586 | * So, just check that pSession is a kernel context session.
|
---|
2587 | */
|
---|
2588 | if (RT_UNLIKELY( pSession
|
---|
2589 | && pSession->R0Process != NIL_RTR0PROCESS))
|
---|
2590 | return VERR_INVALID_PARAMETER;
|
---|
2591 |
|
---|
2592 | /*
|
---|
2593 | * Validation macro.
|
---|
2594 | */
|
---|
2595 | #define REQ_CHECK_IDC_SIZE(Name, cbExpect) \
|
---|
2596 | do { \
|
---|
2597 | if (RT_UNLIKELY(pReqHdr->cb != (cbExpect))) \
|
---|
2598 | { \
|
---|
2599 | OSDBGPRINT(( #Name ": Invalid input/output sizes. cb=%ld expected %ld.\n", \
|
---|
2600 | (long)pReqHdr->cb, (long)(cbExpect))); \
|
---|
2601 | return pReqHdr->rc = VERR_INVALID_PARAMETER; \
|
---|
2602 | } \
|
---|
2603 | } while (0)
|
---|
2604 |
|
---|
2605 | switch (uReq)
|
---|
2606 | {
|
---|
2607 | case SUPDRV_IDC_REQ_CONNECT:
|
---|
2608 | {
|
---|
2609 | PSUPDRVIDCREQCONNECT pReq = (PSUPDRVIDCREQCONNECT)pReqHdr;
|
---|
2610 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_CONNECT, sizeof(*pReq));
|
---|
2611 |
|
---|
2612 | /*
|
---|
2613 | * Validate the cookie and other input.
|
---|
2614 | */
|
---|
2615 | if (pReq->Hdr.pSession != NULL)
|
---|
2616 | {
|
---|
2617 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: Hdr.pSession=%p expected NULL!\n", pReq->Hdr.pSession));
|
---|
2618 | return pReqHdr->rc = VERR_INVALID_PARAMETER;
|
---|
2619 | }
|
---|
2620 | if (pReq->u.In.u32MagicCookie != SUPDRVIDCREQ_CONNECT_MAGIC_COOKIE)
|
---|
2621 | {
|
---|
2622 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: u32MagicCookie=%#x expected %#x!\n",
|
---|
2623 | (unsigned)pReq->u.In.u32MagicCookie, (unsigned)SUPDRVIDCREQ_CONNECT_MAGIC_COOKIE));
|
---|
2624 | return pReqHdr->rc = VERR_INVALID_PARAMETER;
|
---|
2625 | }
|
---|
2626 | if ( pReq->u.In.uMinVersion > pReq->u.In.uReqVersion
|
---|
2627 | || (pReq->u.In.uMinVersion & UINT32_C(0xffff0000)) != (pReq->u.In.uReqVersion & UINT32_C(0xffff0000)))
|
---|
2628 | {
|
---|
2629 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: uMinVersion=%#x uMaxVersion=%#x doesn't match!\n",
|
---|
2630 | pReq->u.In.uMinVersion, pReq->u.In.uReqVersion));
|
---|
2631 | return pReqHdr->rc = VERR_INVALID_PARAMETER;
|
---|
2632 | }
|
---|
2633 | if (pSession != NULL)
|
---|
2634 | {
|
---|
2635 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: pSession=%p expected NULL!\n", pSession));
|
---|
2636 | return pReqHdr->rc = VERR_INVALID_PARAMETER;
|
---|
2637 | }
|
---|
2638 |
|
---|
2639 | /*
|
---|
2640 | * Match the version.
|
---|
2641 | * The current logic is very simple, match the major interface version.
|
---|
2642 | */
|
---|
2643 | if ( pReq->u.In.uMinVersion > SUPDRV_IDC_VERSION
|
---|
2644 | || (pReq->u.In.uMinVersion & 0xffff0000) != (SUPDRV_IDC_VERSION & 0xffff0000))
|
---|
2645 | {
|
---|
2646 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
|
---|
2647 | pReq->u.In.uReqVersion, pReq->u.In.uMinVersion, (unsigned)SUPDRV_IDC_VERSION));
|
---|
2648 | pReq->u.Out.pSession = NULL;
|
---|
2649 | pReq->u.Out.uSessionVersion = 0xffffffff;
|
---|
2650 | pReq->u.Out.uDriverVersion = SUPDRV_IDC_VERSION;
|
---|
2651 | pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
|
---|
2652 | pReq->Hdr.rc = VERR_VERSION_MISMATCH;
|
---|
2653 | return VINF_SUCCESS;
|
---|
2654 | }
|
---|
2655 |
|
---|
2656 | pReq->u.Out.pSession = NULL;
|
---|
2657 | pReq->u.Out.uSessionVersion = SUPDRV_IDC_VERSION;
|
---|
2658 | pReq->u.Out.uDriverVersion = SUPDRV_IDC_VERSION;
|
---|
2659 | pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
|
---|
2660 |
|
---|
2661 | pReq->Hdr.rc = supdrvCreateSession(pDevExt, false /* fUser */, true /*fUnrestricted*/, &pSession);
|
---|
2662 | if (RT_FAILURE(pReq->Hdr.rc))
|
---|
2663 | {
|
---|
2664 | OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: failed to create session, rc=%d\n", pReq->Hdr.rc));
|
---|
2665 | return VINF_SUCCESS;
|
---|
2666 | }
|
---|
2667 |
|
---|
2668 | pReq->u.Out.pSession = pSession;
|
---|
2669 | pReq->Hdr.pSession = pSession;
|
---|
2670 |
|
---|
2671 | return VINF_SUCCESS;
|
---|
2672 | }
|
---|
2673 |
|
---|
2674 | case SUPDRV_IDC_REQ_DISCONNECT:
|
---|
2675 | {
|
---|
2676 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_DISCONNECT, sizeof(*pReqHdr));
|
---|
2677 |
|
---|
2678 | supdrvSessionRelease(pSession);
|
---|
2679 | return pReqHdr->rc = VINF_SUCCESS;
|
---|
2680 | }
|
---|
2681 |
|
---|
2682 | case SUPDRV_IDC_REQ_GET_SYMBOL:
|
---|
2683 | {
|
---|
2684 | PSUPDRVIDCREQGETSYM pReq = (PSUPDRVIDCREQGETSYM)pReqHdr;
|
---|
2685 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_GET_SYMBOL, sizeof(*pReq));
|
---|
2686 |
|
---|
2687 | pReq->Hdr.rc = supdrvIDC_LdrGetSymbol(pDevExt, pSession, pReq);
|
---|
2688 | return VINF_SUCCESS;
|
---|
2689 | }
|
---|
2690 |
|
---|
2691 | case SUPDRV_IDC_REQ_COMPONENT_REGISTER_FACTORY:
|
---|
2692 | {
|
---|
2693 | PSUPDRVIDCREQCOMPREGFACTORY pReq = (PSUPDRVIDCREQCOMPREGFACTORY)pReqHdr;
|
---|
2694 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_COMPONENT_REGISTER_FACTORY, sizeof(*pReq));
|
---|
2695 |
|
---|
2696 | pReq->Hdr.rc = SUPR0ComponentRegisterFactory(pSession, pReq->u.In.pFactory);
|
---|
2697 | return VINF_SUCCESS;
|
---|
2698 | }
|
---|
2699 |
|
---|
2700 | case SUPDRV_IDC_REQ_COMPONENT_DEREGISTER_FACTORY:
|
---|
2701 | {
|
---|
2702 | PSUPDRVIDCREQCOMPDEREGFACTORY pReq = (PSUPDRVIDCREQCOMPDEREGFACTORY)pReqHdr;
|
---|
2703 | REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_COMPONENT_DEREGISTER_FACTORY, sizeof(*pReq));
|
---|
2704 |
|
---|
2705 | pReq->Hdr.rc = SUPR0ComponentDeregisterFactory(pSession, pReq->u.In.pFactory);
|
---|
2706 | return VINF_SUCCESS;
|
---|
2707 | }
|
---|
2708 |
|
---|
2709 | default:
|
---|
2710 | Log(("Unknown IDC %#lx\n", (long)uReq));
|
---|
2711 | break;
|
---|
2712 | }
|
---|
2713 |
|
---|
2714 | #undef REQ_CHECK_IDC_SIZE
|
---|
2715 | return VERR_NOT_SUPPORTED;
|
---|
2716 | }
|
---|
2717 |
|
---|
2718 |
|
---|
2719 | /**
|
---|
2720 | * Register a object for reference counting.
|
---|
2721 | * The object is registered with one reference in the specified session.
|
---|
2722 | *
|
---|
2723 | * @returns Unique identifier on success (pointer).
|
---|
2724 | * All future reference must use this identifier.
|
---|
2725 | * @returns NULL on failure.
|
---|
2726 | * @param pSession The caller's session.
|
---|
2727 | * @param enmType The object type.
|
---|
2728 | * @param pfnDestructor The destructore function which will be called when the reference count reaches 0.
|
---|
2729 | * @param pvUser1 The first user argument.
|
---|
2730 | * @param pvUser2 The second user argument.
|
---|
2731 | */
|
---|
2732 | SUPR0DECL(void *) SUPR0ObjRegister(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void *pvUser1, void *pvUser2)
|
---|
2733 | {
|
---|
2734 | PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
|
---|
2735 | PSUPDRVOBJ pObj;
|
---|
2736 | PSUPDRVUSAGE pUsage;
|
---|
2737 |
|
---|
2738 | /*
|
---|
2739 | * Validate the input.
|
---|
2740 | */
|
---|
2741 | AssertReturn(SUP_IS_SESSION_VALID(pSession), NULL);
|
---|
2742 | AssertReturn(enmType > SUPDRVOBJTYPE_INVALID && enmType < SUPDRVOBJTYPE_END, NULL);
|
---|
2743 | AssertPtrReturn(pfnDestructor, NULL);
|
---|
2744 |
|
---|
2745 | /*
|
---|
2746 | * Allocate and initialize the object.
|
---|
2747 | */
|
---|
2748 | pObj = (PSUPDRVOBJ)RTMemAlloc(sizeof(*pObj));
|
---|
2749 | if (!pObj)
|
---|
2750 | return NULL;
|
---|
2751 | pObj->u32Magic = SUPDRVOBJ_MAGIC;
|
---|
2752 | pObj->enmType = enmType;
|
---|
2753 | pObj->pNext = NULL;
|
---|
2754 | pObj->cUsage = 1;
|
---|
2755 | pObj->pfnDestructor = pfnDestructor;
|
---|
2756 | pObj->pvUser1 = pvUser1;
|
---|
2757 | pObj->pvUser2 = pvUser2;
|
---|
2758 | pObj->CreatorUid = pSession->Uid;
|
---|
2759 | pObj->CreatorGid = pSession->Gid;
|
---|
2760 | pObj->CreatorProcess= pSession->Process;
|
---|
2761 | supdrvOSObjInitCreator(pObj, pSession);
|
---|
2762 |
|
---|
2763 | /*
|
---|
2764 | * Allocate the usage record.
|
---|
2765 | * (We keep freed usage records around to simplify SUPR0ObjAddRefEx().)
|
---|
2766 | */
|
---|
2767 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
2768 |
|
---|
2769 | pUsage = pDevExt->pUsageFree;
|
---|
2770 | if (pUsage)
|
---|
2771 | pDevExt->pUsageFree = pUsage->pNext;
|
---|
2772 | else
|
---|
2773 | {
|
---|
2774 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2775 | pUsage = (PSUPDRVUSAGE)RTMemAlloc(sizeof(*pUsage));
|
---|
2776 | if (!pUsage)
|
---|
2777 | {
|
---|
2778 | RTMemFree(pObj);
|
---|
2779 | return NULL;
|
---|
2780 | }
|
---|
2781 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
2782 | }
|
---|
2783 |
|
---|
2784 | /*
|
---|
2785 | * Insert the object and create the session usage record.
|
---|
2786 | */
|
---|
2787 | /* The object. */
|
---|
2788 | pObj->pNext = pDevExt->pObjs;
|
---|
2789 | pDevExt->pObjs = pObj;
|
---|
2790 |
|
---|
2791 | /* The session record. */
|
---|
2792 | pUsage->cUsage = 1;
|
---|
2793 | pUsage->pObj = pObj;
|
---|
2794 | pUsage->pNext = pSession->pUsage;
|
---|
2795 | /* Log2(("SUPR0ObjRegister: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext)); */
|
---|
2796 | pSession->pUsage = pUsage;
|
---|
2797 |
|
---|
2798 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2799 |
|
---|
2800 | Log(("SUPR0ObjRegister: returns %p (pvUser1=%p, pvUser=%p)\n", pObj, pvUser1, pvUser2));
|
---|
2801 | return pObj;
|
---|
2802 | }
|
---|
2803 |
|
---|
2804 |
|
---|
2805 | /**
|
---|
2806 | * Increment the reference counter for the object associating the reference
|
---|
2807 | * with the specified session.
|
---|
2808 | *
|
---|
2809 | * @returns IPRT status code.
|
---|
2810 | * @param pvObj The identifier returned by SUPR0ObjRegister().
|
---|
2811 | * @param pSession The session which is referencing the object.
|
---|
2812 | *
|
---|
2813 | * @remarks The caller should not own any spinlocks and must carefully protect
|
---|
2814 | * itself against potential race with the destructor so freed memory
|
---|
2815 | * isn't accessed here.
|
---|
2816 | */
|
---|
2817 | SUPR0DECL(int) SUPR0ObjAddRef(void *pvObj, PSUPDRVSESSION pSession)
|
---|
2818 | {
|
---|
2819 | return SUPR0ObjAddRefEx(pvObj, pSession, false /* fNoBlocking */);
|
---|
2820 | }
|
---|
2821 |
|
---|
2822 |
|
---|
2823 | /**
|
---|
2824 | * Increment the reference counter for the object associating the reference
|
---|
2825 | * with the specified session.
|
---|
2826 | *
|
---|
2827 | * @returns IPRT status code.
|
---|
2828 | * @retval VERR_TRY_AGAIN if fNoBlocking was set and a new usage record
|
---|
2829 | * couldn't be allocated. (If you see this you're not doing the right
|
---|
2830 | * thing and it won't ever work reliably.)
|
---|
2831 | *
|
---|
2832 | * @param pvObj The identifier returned by SUPR0ObjRegister().
|
---|
2833 | * @param pSession The session which is referencing the object.
|
---|
2834 | * @param fNoBlocking Set if it's not OK to block. Never try to make the
|
---|
2835 | * first reference to an object in a session with this
|
---|
2836 | * argument set.
|
---|
2837 | *
|
---|
2838 | * @remarks The caller should not own any spinlocks and must carefully protect
|
---|
2839 | * itself against potential race with the destructor so freed memory
|
---|
2840 | * isn't accessed here.
|
---|
2841 | */
|
---|
2842 | SUPR0DECL(int) SUPR0ObjAddRefEx(void *pvObj, PSUPDRVSESSION pSession, bool fNoBlocking)
|
---|
2843 | {
|
---|
2844 | PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
|
---|
2845 | PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
|
---|
2846 | int rc = VINF_SUCCESS;
|
---|
2847 | PSUPDRVUSAGE pUsagePre;
|
---|
2848 | PSUPDRVUSAGE pUsage;
|
---|
2849 |
|
---|
2850 | /*
|
---|
2851 | * Validate the input.
|
---|
2852 | * Be ready for the destruction race (someone might be stuck in the
|
---|
2853 | * destructor waiting a lock we own).
|
---|
2854 | */
|
---|
2855 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
2856 | AssertPtrReturn(pObj, VERR_INVALID_POINTER);
|
---|
2857 | AssertMsgReturn(pObj->u32Magic == SUPDRVOBJ_MAGIC || pObj->u32Magic == SUPDRVOBJ_MAGIC_DEAD,
|
---|
2858 | ("Invalid pvObj=%p magic=%#x (expected %#x or %#x)\n", pvObj, pObj->u32Magic, SUPDRVOBJ_MAGIC, SUPDRVOBJ_MAGIC_DEAD),
|
---|
2859 | VERR_INVALID_PARAMETER);
|
---|
2860 |
|
---|
2861 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
2862 |
|
---|
2863 | if (RT_UNLIKELY(pObj->u32Magic != SUPDRVOBJ_MAGIC))
|
---|
2864 | {
|
---|
2865 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2866 |
|
---|
2867 | AssertMsgFailed(("pvObj=%p magic=%#x\n", pvObj, pObj->u32Magic));
|
---|
2868 | return VERR_WRONG_ORDER;
|
---|
2869 | }
|
---|
2870 |
|
---|
2871 | /*
|
---|
2872 | * Preallocate the usage record if we can.
|
---|
2873 | */
|
---|
2874 | pUsagePre = pDevExt->pUsageFree;
|
---|
2875 | if (pUsagePre)
|
---|
2876 | pDevExt->pUsageFree = pUsagePre->pNext;
|
---|
2877 | else if (!fNoBlocking)
|
---|
2878 | {
|
---|
2879 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2880 | pUsagePre = (PSUPDRVUSAGE)RTMemAlloc(sizeof(*pUsagePre));
|
---|
2881 | if (!pUsagePre)
|
---|
2882 | return VERR_NO_MEMORY;
|
---|
2883 |
|
---|
2884 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
2885 | if (RT_UNLIKELY(pObj->u32Magic != SUPDRVOBJ_MAGIC))
|
---|
2886 | {
|
---|
2887 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2888 |
|
---|
2889 | AssertMsgFailed(("pvObj=%p magic=%#x\n", pvObj, pObj->u32Magic));
|
---|
2890 | return VERR_WRONG_ORDER;
|
---|
2891 | }
|
---|
2892 | }
|
---|
2893 |
|
---|
2894 | /*
|
---|
2895 | * Reference the object.
|
---|
2896 | */
|
---|
2897 | pObj->cUsage++;
|
---|
2898 |
|
---|
2899 | /*
|
---|
2900 | * Look for the session record.
|
---|
2901 | */
|
---|
2902 | for (pUsage = pSession->pUsage; pUsage; pUsage = pUsage->pNext)
|
---|
2903 | {
|
---|
2904 | /*Log(("SUPR0AddRef: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext));*/
|
---|
2905 | if (pUsage->pObj == pObj)
|
---|
2906 | break;
|
---|
2907 | }
|
---|
2908 | if (pUsage)
|
---|
2909 | pUsage->cUsage++;
|
---|
2910 | else if (pUsagePre)
|
---|
2911 | {
|
---|
2912 | /* create a new session record. */
|
---|
2913 | pUsagePre->cUsage = 1;
|
---|
2914 | pUsagePre->pObj = pObj;
|
---|
2915 | pUsagePre->pNext = pSession->pUsage;
|
---|
2916 | pSession->pUsage = pUsagePre;
|
---|
2917 | /*Log(("SUPR0AddRef: pUsagePre=%p:{.pObj=%p, .pNext=%p}\n", pUsagePre, pUsagePre->pObj, pUsagePre->pNext));*/
|
---|
2918 |
|
---|
2919 | pUsagePre = NULL;
|
---|
2920 | }
|
---|
2921 | else
|
---|
2922 | {
|
---|
2923 | pObj->cUsage--;
|
---|
2924 | rc = VERR_TRY_AGAIN;
|
---|
2925 | }
|
---|
2926 |
|
---|
2927 | /*
|
---|
2928 | * Put any unused usage record into the free list..
|
---|
2929 | */
|
---|
2930 | if (pUsagePre)
|
---|
2931 | {
|
---|
2932 | pUsagePre->pNext = pDevExt->pUsageFree;
|
---|
2933 | pDevExt->pUsageFree = pUsagePre;
|
---|
2934 | }
|
---|
2935 |
|
---|
2936 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
2937 |
|
---|
2938 | return rc;
|
---|
2939 | }
|
---|
2940 |
|
---|
2941 |
|
---|
2942 | /**
|
---|
2943 | * Decrement / destroy a reference counter record for an object.
|
---|
2944 | *
|
---|
2945 | * The object is uniquely identified by pfnDestructor+pvUser1+pvUser2.
|
---|
2946 | *
|
---|
2947 | * @returns IPRT status code.
|
---|
2948 | * @retval VINF_SUCCESS if not destroyed.
|
---|
2949 | * @retval VINF_OBJECT_DESTROYED if it's destroyed by this release call.
|
---|
2950 | * @retval VERR_INVALID_PARAMETER if the object isn't valid. Will assert in
|
---|
2951 | * string builds.
|
---|
2952 | *
|
---|
2953 | * @param pvObj The identifier returned by SUPR0ObjRegister().
|
---|
2954 | * @param pSession The session which is referencing the object.
|
---|
2955 | */
|
---|
2956 | SUPR0DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession)
|
---|
2957 | {
|
---|
2958 | PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
|
---|
2959 | PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
|
---|
2960 | int rc = VERR_INVALID_PARAMETER;
|
---|
2961 | PSUPDRVUSAGE pUsage;
|
---|
2962 | PSUPDRVUSAGE pUsagePrev;
|
---|
2963 |
|
---|
2964 | /*
|
---|
2965 | * Validate the input.
|
---|
2966 | */
|
---|
2967 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
2968 | AssertMsgReturn(VALID_PTR(pObj)&& pObj->u32Magic == SUPDRVOBJ_MAGIC,
|
---|
2969 | ("Invalid pvObj=%p magic=%#x (expected %#x)\n", pvObj, pObj ? pObj->u32Magic : 0, SUPDRVOBJ_MAGIC),
|
---|
2970 | VERR_INVALID_PARAMETER);
|
---|
2971 |
|
---|
2972 | /*
|
---|
2973 | * Acquire the spinlock and look for the usage record.
|
---|
2974 | */
|
---|
2975 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
2976 |
|
---|
2977 | for (pUsagePrev = NULL, pUsage = pSession->pUsage;
|
---|
2978 | pUsage;
|
---|
2979 | pUsagePrev = pUsage, pUsage = pUsage->pNext)
|
---|
2980 | {
|
---|
2981 | /*Log2(("SUPR0ObjRelease: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext));*/
|
---|
2982 | if (pUsage->pObj == pObj)
|
---|
2983 | {
|
---|
2984 | rc = VINF_SUCCESS;
|
---|
2985 | AssertMsg(pUsage->cUsage >= 1 && pObj->cUsage >= pUsage->cUsage, ("glob %d; sess %d\n", pObj->cUsage, pUsage->cUsage));
|
---|
2986 | if (pUsage->cUsage > 1)
|
---|
2987 | {
|
---|
2988 | pObj->cUsage--;
|
---|
2989 | pUsage->cUsage--;
|
---|
2990 | }
|
---|
2991 | else
|
---|
2992 | {
|
---|
2993 | /*
|
---|
2994 | * Free the session record.
|
---|
2995 | */
|
---|
2996 | if (pUsagePrev)
|
---|
2997 | pUsagePrev->pNext = pUsage->pNext;
|
---|
2998 | else
|
---|
2999 | pSession->pUsage = pUsage->pNext;
|
---|
3000 | pUsage->pNext = pDevExt->pUsageFree;
|
---|
3001 | pDevExt->pUsageFree = pUsage;
|
---|
3002 |
|
---|
3003 | /* What about the object? */
|
---|
3004 | if (pObj->cUsage > 1)
|
---|
3005 | pObj->cUsage--;
|
---|
3006 | else
|
---|
3007 | {
|
---|
3008 | /*
|
---|
3009 | * Object is to be destroyed, unlink it.
|
---|
3010 | */
|
---|
3011 | pObj->u32Magic = SUPDRVOBJ_MAGIC_DEAD;
|
---|
3012 | rc = VINF_OBJECT_DESTROYED;
|
---|
3013 | if (pDevExt->pObjs == pObj)
|
---|
3014 | pDevExt->pObjs = pObj->pNext;
|
---|
3015 | else
|
---|
3016 | {
|
---|
3017 | PSUPDRVOBJ pObjPrev;
|
---|
3018 | for (pObjPrev = pDevExt->pObjs; pObjPrev; pObjPrev = pObjPrev->pNext)
|
---|
3019 | if (pObjPrev->pNext == pObj)
|
---|
3020 | {
|
---|
3021 | pObjPrev->pNext = pObj->pNext;
|
---|
3022 | break;
|
---|
3023 | }
|
---|
3024 | Assert(pObjPrev);
|
---|
3025 | }
|
---|
3026 | }
|
---|
3027 | }
|
---|
3028 | break;
|
---|
3029 | }
|
---|
3030 | }
|
---|
3031 |
|
---|
3032 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
3033 |
|
---|
3034 | /*
|
---|
3035 | * Call the destructor and free the object if required.
|
---|
3036 | */
|
---|
3037 | if (rc == VINF_OBJECT_DESTROYED)
|
---|
3038 | {
|
---|
3039 | Log(("SUPR0ObjRelease: destroying %p/%d (%p/%p) cpid=%RTproc pid=%RTproc dtor=%p\n",
|
---|
3040 | pObj, pObj->enmType, pObj->pvUser1, pObj->pvUser2, pObj->CreatorProcess, RTProcSelf(), pObj->pfnDestructor));
|
---|
3041 | if (pObj->pfnDestructor)
|
---|
3042 | pObj->pfnDestructor(pObj, pObj->pvUser1, pObj->pvUser2);
|
---|
3043 | RTMemFree(pObj);
|
---|
3044 | }
|
---|
3045 |
|
---|
3046 | AssertMsg(pUsage, ("pvObj=%p\n", pvObj));
|
---|
3047 | return rc;
|
---|
3048 | }
|
---|
3049 |
|
---|
3050 |
|
---|
3051 | /**
|
---|
3052 | * Verifies that the current process can access the specified object.
|
---|
3053 | *
|
---|
3054 | * @returns The following IPRT status code:
|
---|
3055 | * @retval VINF_SUCCESS if access was granted.
|
---|
3056 | * @retval VERR_PERMISSION_DENIED if denied access.
|
---|
3057 | * @retval VERR_INVALID_PARAMETER if invalid parameter.
|
---|
3058 | *
|
---|
3059 | * @param pvObj The identifier returned by SUPR0ObjRegister().
|
---|
3060 | * @param pSession The session which wishes to access the object.
|
---|
3061 | * @param pszObjName Object string name. This is optional and depends on the object type.
|
---|
3062 | *
|
---|
3063 | * @remark The caller is responsible for making sure the object isn't removed while
|
---|
3064 | * we're inside this function. If uncertain about this, just call AddRef before calling us.
|
---|
3065 | */
|
---|
3066 | SUPR0DECL(int) SUPR0ObjVerifyAccess(void *pvObj, PSUPDRVSESSION pSession, const char *pszObjName)
|
---|
3067 | {
|
---|
3068 | PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
|
---|
3069 | int rc;
|
---|
3070 |
|
---|
3071 | /*
|
---|
3072 | * Validate the input.
|
---|
3073 | */
|
---|
3074 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3075 | AssertMsgReturn(VALID_PTR(pObj) && pObj->u32Magic == SUPDRVOBJ_MAGIC,
|
---|
3076 | ("Invalid pvObj=%p magic=%#x (exepcted %#x)\n", pvObj, pObj ? pObj->u32Magic : 0, SUPDRVOBJ_MAGIC),
|
---|
3077 | VERR_INVALID_PARAMETER);
|
---|
3078 |
|
---|
3079 | /*
|
---|
3080 | * Check access. (returns true if a decision has been made.)
|
---|
3081 | */
|
---|
3082 | rc = VERR_INTERNAL_ERROR;
|
---|
3083 | if (supdrvOSObjCanAccess(pObj, pSession, pszObjName, &rc))
|
---|
3084 | return rc;
|
---|
3085 |
|
---|
3086 | /*
|
---|
3087 | * Default policy is to allow the user to access his own
|
---|
3088 | * stuff but nothing else.
|
---|
3089 | */
|
---|
3090 | if (pObj->CreatorUid == pSession->Uid)
|
---|
3091 | return VINF_SUCCESS;
|
---|
3092 | return VERR_PERMISSION_DENIED;
|
---|
3093 | }
|
---|
3094 |
|
---|
3095 |
|
---|
3096 | /**
|
---|
3097 | * API for the VMMR0 module to get the SUPDRVSESSION::pSessionVM member.
|
---|
3098 | *
|
---|
3099 | * @returns The associated VM pointer.
|
---|
3100 | * @param pSession The session of the current thread.
|
---|
3101 | */
|
---|
3102 | SUPR0DECL(PVM) SUPR0GetSessionVM(PSUPDRVSESSION pSession)
|
---|
3103 | {
|
---|
3104 | AssertReturn(SUP_IS_SESSION_VALID(pSession), NULL);
|
---|
3105 | return pSession->pSessionVM;
|
---|
3106 | }
|
---|
3107 |
|
---|
3108 |
|
---|
3109 | /**
|
---|
3110 | * API for the VMMR0 module to get the SUPDRVSESSION::pSessionGVM member.
|
---|
3111 | *
|
---|
3112 | * @returns The associated GVM pointer.
|
---|
3113 | * @param pSession The session of the current thread.
|
---|
3114 | */
|
---|
3115 | SUPR0DECL(PGVM) SUPR0GetSessionGVM(PSUPDRVSESSION pSession)
|
---|
3116 | {
|
---|
3117 | AssertReturn(SUP_IS_SESSION_VALID(pSession), NULL);
|
---|
3118 | return pSession->pSessionGVM;
|
---|
3119 | }
|
---|
3120 |
|
---|
3121 |
|
---|
3122 | /**
|
---|
3123 | * API for the VMMR0 module to work the SUPDRVSESSION::pSessionVM member.
|
---|
3124 | *
|
---|
3125 | * This will fail if there is already a VM associated with the session and pVM
|
---|
3126 | * isn't NULL.
|
---|
3127 | *
|
---|
3128 | * @retval VINF_SUCCESS
|
---|
3129 | * @retval VERR_ALREADY_EXISTS if there already is a VM associated with the
|
---|
3130 | * session.
|
---|
3131 | * @retval VERR_INVALID_PARAMETER if only one of the parameters are NULL or if
|
---|
3132 | * the session is invalid.
|
---|
3133 | *
|
---|
3134 | * @param pSession The session of the current thread.
|
---|
3135 | * @param pGVM The GVM to associate with the session. Pass NULL to
|
---|
3136 | * dissassociate.
|
---|
3137 | * @param pVM The VM to associate with the session. Pass NULL to
|
---|
3138 | * dissassociate.
|
---|
3139 | */
|
---|
3140 | SUPR0DECL(int) SUPR0SetSessionVM(PSUPDRVSESSION pSession, PGVM pGVM, PVM pVM)
|
---|
3141 | {
|
---|
3142 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3143 | AssertReturn((pGVM != NULL) == (pVM != NULL), VERR_INVALID_PARAMETER);
|
---|
3144 |
|
---|
3145 | RTSpinlockAcquire(pSession->pDevExt->Spinlock);
|
---|
3146 | if (pGVM)
|
---|
3147 | {
|
---|
3148 | if (!pSession->pSessionGVM)
|
---|
3149 | {
|
---|
3150 | pSession->pSessionGVM = pGVM;
|
---|
3151 | pSession->pSessionVM = pVM;
|
---|
3152 | pSession->pFastIoCtrlVM = NULL;
|
---|
3153 | }
|
---|
3154 | else
|
---|
3155 | {
|
---|
3156 | RTSpinlockRelease(pSession->pDevExt->Spinlock);
|
---|
3157 | SUPR0Printf("SUPR0SetSessionVM: Unable to associated GVM/VM %p/%p with session %p as it has %p/%p already!\n",
|
---|
3158 | pGVM, pVM, pSession, pSession->pSessionGVM, pSession->pSessionVM);
|
---|
3159 | return VERR_ALREADY_EXISTS;
|
---|
3160 | }
|
---|
3161 | }
|
---|
3162 | else
|
---|
3163 | {
|
---|
3164 | pSession->pSessionGVM = NULL;
|
---|
3165 | pSession->pSessionVM = NULL;
|
---|
3166 | pSession->pFastIoCtrlVM = NULL;
|
---|
3167 | }
|
---|
3168 | RTSpinlockRelease(pSession->pDevExt->Spinlock);
|
---|
3169 | return VINF_SUCCESS;
|
---|
3170 | }
|
---|
3171 |
|
---|
3172 |
|
---|
3173 | /**
|
---|
3174 | * Lock pages.
|
---|
3175 | *
|
---|
3176 | * @returns IPRT status code.
|
---|
3177 | * @param pSession Session to which the locked memory should be associated.
|
---|
3178 | * @param pvR3 Start of the memory range to lock.
|
---|
3179 | * This must be page aligned.
|
---|
3180 | * @param cPages Number of pages to lock.
|
---|
3181 | * @param paPages Where to put the physical addresses of locked memory.
|
---|
3182 | */
|
---|
3183 | SUPR0DECL(int) SUPR0LockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages)
|
---|
3184 | {
|
---|
3185 | int rc;
|
---|
3186 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3187 | const size_t cb = (size_t)cPages << PAGE_SHIFT;
|
---|
3188 | LogFlow(("SUPR0LockMem: pSession=%p pvR3=%p cPages=%d paPages=%p\n", pSession, (void *)pvR3, cPages, paPages));
|
---|
3189 |
|
---|
3190 | /*
|
---|
3191 | * Verify input.
|
---|
3192 | */
|
---|
3193 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3194 | AssertPtrReturn(paPages, VERR_INVALID_PARAMETER);
|
---|
3195 | if ( RT_ALIGN_R3PT(pvR3, PAGE_SIZE, RTR3PTR) != pvR3
|
---|
3196 | || !pvR3)
|
---|
3197 | {
|
---|
3198 | Log(("pvR3 (%p) must be page aligned and not NULL!\n", (void *)pvR3));
|
---|
3199 | return VERR_INVALID_PARAMETER;
|
---|
3200 | }
|
---|
3201 |
|
---|
3202 | /*
|
---|
3203 | * Let IPRT do the job.
|
---|
3204 | */
|
---|
3205 | Mem.eType = MEMREF_TYPE_LOCKED;
|
---|
3206 | rc = RTR0MemObjLockUser(&Mem.MemObj, pvR3, cb, RTMEM_PROT_READ | RTMEM_PROT_WRITE, NIL_RTR0PROCESS);
|
---|
3207 | if (RT_SUCCESS(rc))
|
---|
3208 | {
|
---|
3209 | uint32_t iPage = cPages;
|
---|
3210 | AssertMsg(RTR0MemObjAddressR3(Mem.MemObj) == pvR3, ("%p == %p\n", RTR0MemObjAddressR3(Mem.MemObj), pvR3));
|
---|
3211 | AssertMsg(RTR0MemObjSize(Mem.MemObj) == cb, ("%x == %x\n", RTR0MemObjSize(Mem.MemObj), cb));
|
---|
3212 |
|
---|
3213 | while (iPage-- > 0)
|
---|
3214 | {
|
---|
3215 | paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MemObj, iPage);
|
---|
3216 | if (RT_UNLIKELY(paPages[iPage] == NIL_RTCCPHYS))
|
---|
3217 | {
|
---|
3218 | AssertMsgFailed(("iPage=%d\n", iPage));
|
---|
3219 | rc = VERR_INTERNAL_ERROR;
|
---|
3220 | break;
|
---|
3221 | }
|
---|
3222 | }
|
---|
3223 | if (RT_SUCCESS(rc))
|
---|
3224 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3225 | if (RT_FAILURE(rc))
|
---|
3226 | {
|
---|
3227 | int rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3228 | AssertRC(rc2);
|
---|
3229 | }
|
---|
3230 | }
|
---|
3231 |
|
---|
3232 | return rc;
|
---|
3233 | }
|
---|
3234 |
|
---|
3235 |
|
---|
3236 | /**
|
---|
3237 | * Unlocks the memory pointed to by pv.
|
---|
3238 | *
|
---|
3239 | * @returns IPRT status code.
|
---|
3240 | * @param pSession Session to which the memory was locked.
|
---|
3241 | * @param pvR3 Memory to unlock.
|
---|
3242 | */
|
---|
3243 | SUPR0DECL(int) SUPR0UnlockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3)
|
---|
3244 | {
|
---|
3245 | LogFlow(("SUPR0UnlockMem: pSession=%p pvR3=%p\n", pSession, (void *)pvR3));
|
---|
3246 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3247 | return supdrvMemRelease(pSession, (RTHCUINTPTR)pvR3, MEMREF_TYPE_LOCKED);
|
---|
3248 | }
|
---|
3249 |
|
---|
3250 |
|
---|
3251 | /**
|
---|
3252 | * Allocates a chunk of page aligned memory with contiguous and fixed physical
|
---|
3253 | * backing.
|
---|
3254 | *
|
---|
3255 | * @returns IPRT status code.
|
---|
3256 | * @param pSession Session data.
|
---|
3257 | * @param cPages Number of pages to allocate.
|
---|
3258 | * @param ppvR0 Where to put the address of Ring-0 mapping the allocated memory.
|
---|
3259 | * @param ppvR3 Where to put the address of Ring-3 mapping the allocated memory.
|
---|
3260 | * @param pHCPhys Where to put the physical address of allocated memory.
|
---|
3261 | */
|
---|
3262 | SUPR0DECL(int) SUPR0ContAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS pHCPhys)
|
---|
3263 | {
|
---|
3264 | int rc;
|
---|
3265 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3266 | LogFlow(("SUPR0ContAlloc: pSession=%p cPages=%d ppvR0=%p ppvR3=%p pHCPhys=%p\n", pSession, cPages, ppvR0, ppvR3, pHCPhys));
|
---|
3267 |
|
---|
3268 | /*
|
---|
3269 | * Validate input.
|
---|
3270 | */
|
---|
3271 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3272 | if (!ppvR3 || !ppvR0 || !pHCPhys)
|
---|
3273 | {
|
---|
3274 | Log(("Null pointer. All of these should be set: pSession=%p ppvR0=%p ppvR3=%p pHCPhys=%p\n",
|
---|
3275 | pSession, ppvR0, ppvR3, pHCPhys));
|
---|
3276 | return VERR_INVALID_PARAMETER;
|
---|
3277 |
|
---|
3278 | }
|
---|
3279 | if (cPages < 1 || cPages >= 256)
|
---|
3280 | {
|
---|
3281 | Log(("Illegal request cPages=%d, must be greater than 0 and smaller than 256.\n", cPages));
|
---|
3282 | return VERR_PAGE_COUNT_OUT_OF_RANGE;
|
---|
3283 | }
|
---|
3284 |
|
---|
3285 | /*
|
---|
3286 | * Let IPRT do the job.
|
---|
3287 | */
|
---|
3288 | rc = RTR0MemObjAllocCont(&Mem.MemObj, cPages << PAGE_SHIFT, true /* executable R0 mapping */);
|
---|
3289 | if (RT_SUCCESS(rc))
|
---|
3290 | {
|
---|
3291 | int rc2;
|
---|
3292 | rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
|
---|
3293 | RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3294 | if (RT_SUCCESS(rc))
|
---|
3295 | {
|
---|
3296 | Mem.eType = MEMREF_TYPE_CONT;
|
---|
3297 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3298 | if (!rc)
|
---|
3299 | {
|
---|
3300 | *ppvR0 = RTR0MemObjAddress(Mem.MemObj);
|
---|
3301 | *ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
|
---|
3302 | *pHCPhys = RTR0MemObjGetPagePhysAddr(Mem.MemObj, 0);
|
---|
3303 | return 0;
|
---|
3304 | }
|
---|
3305 |
|
---|
3306 | rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
3307 | AssertRC(rc2);
|
---|
3308 | }
|
---|
3309 | rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3310 | AssertRC(rc2);
|
---|
3311 | }
|
---|
3312 |
|
---|
3313 | return rc;
|
---|
3314 | }
|
---|
3315 |
|
---|
3316 |
|
---|
3317 | /**
|
---|
3318 | * Frees memory allocated using SUPR0ContAlloc().
|
---|
3319 | *
|
---|
3320 | * @returns IPRT status code.
|
---|
3321 | * @param pSession The session to which the memory was allocated.
|
---|
3322 | * @param uPtr Pointer to the memory (ring-3 or ring-0).
|
---|
3323 | */
|
---|
3324 | SUPR0DECL(int) SUPR0ContFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
|
---|
3325 | {
|
---|
3326 | LogFlow(("SUPR0ContFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
|
---|
3327 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3328 | return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_CONT);
|
---|
3329 | }
|
---|
3330 |
|
---|
3331 |
|
---|
3332 | /**
|
---|
3333 | * Allocates a chunk of page aligned memory with fixed physical backing below 4GB.
|
---|
3334 | *
|
---|
3335 | * The memory isn't zeroed.
|
---|
3336 | *
|
---|
3337 | * @returns IPRT status code.
|
---|
3338 | * @param pSession Session data.
|
---|
3339 | * @param cPages Number of pages to allocate.
|
---|
3340 | * @param ppvR0 Where to put the address of Ring-0 mapping of the allocated memory.
|
---|
3341 | * @param ppvR3 Where to put the address of Ring-3 mapping of the allocated memory.
|
---|
3342 | * @param paPages Where to put the physical addresses of allocated memory.
|
---|
3343 | */
|
---|
3344 | SUPR0DECL(int) SUPR0LowAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS paPages)
|
---|
3345 | {
|
---|
3346 | unsigned iPage;
|
---|
3347 | int rc;
|
---|
3348 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3349 | LogFlow(("SUPR0LowAlloc: pSession=%p cPages=%d ppvR3=%p ppvR0=%p paPages=%p\n", pSession, cPages, ppvR3, ppvR0, paPages));
|
---|
3350 |
|
---|
3351 | /*
|
---|
3352 | * Validate input.
|
---|
3353 | */
|
---|
3354 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3355 | if (!ppvR3 || !ppvR0 || !paPages)
|
---|
3356 | {
|
---|
3357 | Log(("Null pointer. All of these should be set: pSession=%p ppvR3=%p ppvR0=%p paPages=%p\n",
|
---|
3358 | pSession, ppvR3, ppvR0, paPages));
|
---|
3359 | return VERR_INVALID_PARAMETER;
|
---|
3360 |
|
---|
3361 | }
|
---|
3362 | if (cPages < 1 || cPages >= 256)
|
---|
3363 | {
|
---|
3364 | Log(("Illegal request cPages=%d, must be greater than 0 and smaller than 256.\n", cPages));
|
---|
3365 | return VERR_PAGE_COUNT_OUT_OF_RANGE;
|
---|
3366 | }
|
---|
3367 |
|
---|
3368 | /*
|
---|
3369 | * Let IPRT do the work.
|
---|
3370 | */
|
---|
3371 | rc = RTR0MemObjAllocLow(&Mem.MemObj, cPages << PAGE_SHIFT, true /* executable ring-0 mapping */);
|
---|
3372 | if (RT_SUCCESS(rc))
|
---|
3373 | {
|
---|
3374 | int rc2;
|
---|
3375 | rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
|
---|
3376 | RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3377 | if (RT_SUCCESS(rc))
|
---|
3378 | {
|
---|
3379 | Mem.eType = MEMREF_TYPE_LOW;
|
---|
3380 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3381 | if (!rc)
|
---|
3382 | {
|
---|
3383 | for (iPage = 0; iPage < cPages; iPage++)
|
---|
3384 | {
|
---|
3385 | paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MemObj, iPage);
|
---|
3386 | AssertMsg(!(paPages[iPage] & (PAGE_SIZE - 1)), ("iPage=%d Phys=%RHp\n", paPages[iPage]));
|
---|
3387 | }
|
---|
3388 | *ppvR0 = RTR0MemObjAddress(Mem.MemObj);
|
---|
3389 | *ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
|
---|
3390 | return 0;
|
---|
3391 | }
|
---|
3392 |
|
---|
3393 | rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
3394 | AssertRC(rc2);
|
---|
3395 | }
|
---|
3396 |
|
---|
3397 | rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3398 | AssertRC(rc2);
|
---|
3399 | }
|
---|
3400 |
|
---|
3401 | return rc;
|
---|
3402 | }
|
---|
3403 |
|
---|
3404 |
|
---|
3405 | /**
|
---|
3406 | * Frees memory allocated using SUPR0LowAlloc().
|
---|
3407 | *
|
---|
3408 | * @returns IPRT status code.
|
---|
3409 | * @param pSession The session to which the memory was allocated.
|
---|
3410 | * @param uPtr Pointer to the memory (ring-3 or ring-0).
|
---|
3411 | */
|
---|
3412 | SUPR0DECL(int) SUPR0LowFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
|
---|
3413 | {
|
---|
3414 | LogFlow(("SUPR0LowFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
|
---|
3415 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3416 | return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_LOW);
|
---|
3417 | }
|
---|
3418 |
|
---|
3419 |
|
---|
3420 |
|
---|
3421 | /**
|
---|
3422 | * Allocates a chunk of memory with both R0 and R3 mappings.
|
---|
3423 | * The memory is fixed and it's possible to query the physical addresses using SUPR0MemGetPhys().
|
---|
3424 | *
|
---|
3425 | * @returns IPRT status code.
|
---|
3426 | * @param pSession The session to associated the allocation with.
|
---|
3427 | * @param cb Number of bytes to allocate.
|
---|
3428 | * @param ppvR0 Where to store the address of the Ring-0 mapping.
|
---|
3429 | * @param ppvR3 Where to store the address of the Ring-3 mapping.
|
---|
3430 | */
|
---|
3431 | SUPR0DECL(int) SUPR0MemAlloc(PSUPDRVSESSION pSession, uint32_t cb, PRTR0PTR ppvR0, PRTR3PTR ppvR3)
|
---|
3432 | {
|
---|
3433 | int rc;
|
---|
3434 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3435 | LogFlow(("SUPR0MemAlloc: pSession=%p cb=%d ppvR0=%p ppvR3=%p\n", pSession, cb, ppvR0, ppvR3));
|
---|
3436 |
|
---|
3437 | /*
|
---|
3438 | * Validate input.
|
---|
3439 | */
|
---|
3440 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3441 | AssertPtrReturn(ppvR0, VERR_INVALID_POINTER);
|
---|
3442 | AssertPtrReturn(ppvR3, VERR_INVALID_POINTER);
|
---|
3443 | if (cb < 1 || cb >= _4M)
|
---|
3444 | {
|
---|
3445 | Log(("Illegal request cb=%u; must be greater than 0 and smaller than 4MB.\n", cb));
|
---|
3446 | return VERR_INVALID_PARAMETER;
|
---|
3447 | }
|
---|
3448 |
|
---|
3449 | /*
|
---|
3450 | * Let IPRT do the work.
|
---|
3451 | */
|
---|
3452 | rc = RTR0MemObjAllocPage(&Mem.MemObj, cb, true /* executable ring-0 mapping */);
|
---|
3453 | if (RT_SUCCESS(rc))
|
---|
3454 | {
|
---|
3455 | int rc2;
|
---|
3456 | rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
|
---|
3457 | RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3458 | if (RT_SUCCESS(rc))
|
---|
3459 | {
|
---|
3460 | Mem.eType = MEMREF_TYPE_MEM;
|
---|
3461 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3462 | if (!rc)
|
---|
3463 | {
|
---|
3464 | *ppvR0 = RTR0MemObjAddress(Mem.MemObj);
|
---|
3465 | *ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
|
---|
3466 | return VINF_SUCCESS;
|
---|
3467 | }
|
---|
3468 |
|
---|
3469 | rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
3470 | AssertRC(rc2);
|
---|
3471 | }
|
---|
3472 |
|
---|
3473 | rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3474 | AssertRC(rc2);
|
---|
3475 | }
|
---|
3476 |
|
---|
3477 | return rc;
|
---|
3478 | }
|
---|
3479 |
|
---|
3480 |
|
---|
3481 | /**
|
---|
3482 | * Get the physical addresses of memory allocated using SUPR0MemAlloc().
|
---|
3483 | *
|
---|
3484 | * @returns IPRT status code.
|
---|
3485 | * @param pSession The session to which the memory was allocated.
|
---|
3486 | * @param uPtr The Ring-0 or Ring-3 address returned by SUPR0MemAlloc().
|
---|
3487 | * @param paPages Where to store the physical addresses.
|
---|
3488 | */
|
---|
3489 | SUPR0DECL(int) SUPR0MemGetPhys(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, PSUPPAGE paPages) /** @todo switch this bugger to RTHCPHYS */
|
---|
3490 | {
|
---|
3491 | PSUPDRVBUNDLE pBundle;
|
---|
3492 | LogFlow(("SUPR0MemGetPhys: pSession=%p uPtr=%p paPages=%p\n", pSession, (void *)uPtr, paPages));
|
---|
3493 |
|
---|
3494 | /*
|
---|
3495 | * Validate input.
|
---|
3496 | */
|
---|
3497 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3498 | AssertPtrReturn(paPages, VERR_INVALID_POINTER);
|
---|
3499 | AssertReturn(uPtr, VERR_INVALID_PARAMETER);
|
---|
3500 |
|
---|
3501 | /*
|
---|
3502 | * Search for the address.
|
---|
3503 | */
|
---|
3504 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
3505 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
3506 | {
|
---|
3507 | if (pBundle->cUsed > 0)
|
---|
3508 | {
|
---|
3509 | unsigned i;
|
---|
3510 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
3511 | {
|
---|
3512 | if ( pBundle->aMem[i].eType == MEMREF_TYPE_MEM
|
---|
3513 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
3514 | && ( (RTHCUINTPTR)RTR0MemObjAddress(pBundle->aMem[i].MemObj) == uPtr
|
---|
3515 | || ( pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
|
---|
3516 | && RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == uPtr)
|
---|
3517 | )
|
---|
3518 | )
|
---|
3519 | {
|
---|
3520 | const size_t cPages = RTR0MemObjSize(pBundle->aMem[i].MemObj) >> PAGE_SHIFT;
|
---|
3521 | size_t iPage;
|
---|
3522 | for (iPage = 0; iPage < cPages; iPage++)
|
---|
3523 | {
|
---|
3524 | paPages[iPage].Phys = RTR0MemObjGetPagePhysAddr(pBundle->aMem[i].MemObj, iPage);
|
---|
3525 | paPages[iPage].uReserved = 0;
|
---|
3526 | }
|
---|
3527 | RTSpinlockRelease(pSession->Spinlock);
|
---|
3528 | return VINF_SUCCESS;
|
---|
3529 | }
|
---|
3530 | }
|
---|
3531 | }
|
---|
3532 | }
|
---|
3533 | RTSpinlockRelease(pSession->Spinlock);
|
---|
3534 | Log(("Failed to find %p!!!\n", (void *)uPtr));
|
---|
3535 | return VERR_INVALID_PARAMETER;
|
---|
3536 | }
|
---|
3537 |
|
---|
3538 |
|
---|
3539 | /**
|
---|
3540 | * Free memory allocated by SUPR0MemAlloc().
|
---|
3541 | *
|
---|
3542 | * @returns IPRT status code.
|
---|
3543 | * @param pSession The session owning the allocation.
|
---|
3544 | * @param uPtr The Ring-0 or Ring-3 address returned by SUPR0MemAlloc().
|
---|
3545 | */
|
---|
3546 | SUPR0DECL(int) SUPR0MemFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
|
---|
3547 | {
|
---|
3548 | LogFlow(("SUPR0MemFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
|
---|
3549 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3550 | return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_MEM);
|
---|
3551 | }
|
---|
3552 |
|
---|
3553 |
|
---|
3554 | /**
|
---|
3555 | * Allocates a chunk of memory with a kernel or/and a user mode mapping.
|
---|
3556 | *
|
---|
3557 | * The memory is fixed and it's possible to query the physical addresses using
|
---|
3558 | * SUPR0MemGetPhys().
|
---|
3559 | *
|
---|
3560 | * @returns IPRT status code.
|
---|
3561 | * @param pSession The session to associated the allocation with.
|
---|
3562 | * @param cPages The number of pages to allocate.
|
---|
3563 | * @param fFlags Flags, reserved for the future. Must be zero.
|
---|
3564 | * @param ppvR3 Where to store the address of the Ring-3 mapping.
|
---|
3565 | * NULL if no ring-3 mapping.
|
---|
3566 | * @param ppvR0 Where to store the address of the Ring-0 mapping.
|
---|
3567 | * NULL if no ring-0 mapping.
|
---|
3568 | * @param paPages Where to store the addresses of the pages. Optional.
|
---|
3569 | */
|
---|
3570 | SUPR0DECL(int) SUPR0PageAllocEx(PSUPDRVSESSION pSession, uint32_t cPages, uint32_t fFlags, PRTR3PTR ppvR3, PRTR0PTR ppvR0, PRTHCPHYS paPages)
|
---|
3571 | {
|
---|
3572 | int rc;
|
---|
3573 | SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
|
---|
3574 | LogFlow(("SUPR0PageAlloc: pSession=%p cb=%d ppvR3=%p\n", pSession, cPages, ppvR3));
|
---|
3575 |
|
---|
3576 | /*
|
---|
3577 | * Validate input. The allowed allocation size must be at least equal to the maximum guest VRAM size.
|
---|
3578 | */
|
---|
3579 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3580 | AssertPtrNullReturn(ppvR3, VERR_INVALID_POINTER);
|
---|
3581 | AssertPtrNullReturn(ppvR0, VERR_INVALID_POINTER);
|
---|
3582 | AssertReturn(ppvR3 || ppvR0, VERR_INVALID_PARAMETER);
|
---|
3583 | AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
|
---|
3584 | if (cPages < 1 || cPages > VBOX_MAX_ALLOC_PAGE_COUNT)
|
---|
3585 | {
|
---|
3586 | 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)));
|
---|
3587 | return VERR_PAGE_COUNT_OUT_OF_RANGE;
|
---|
3588 | }
|
---|
3589 |
|
---|
3590 | /*
|
---|
3591 | * Let IPRT do the work.
|
---|
3592 | */
|
---|
3593 | if (ppvR0)
|
---|
3594 | rc = RTR0MemObjAllocPage(&Mem.MemObj, (size_t)cPages * PAGE_SIZE, true /* fExecutable */);
|
---|
3595 | else
|
---|
3596 | rc = RTR0MemObjAllocPhysNC(&Mem.MemObj, (size_t)cPages * PAGE_SIZE, NIL_RTHCPHYS);
|
---|
3597 | if (RT_SUCCESS(rc))
|
---|
3598 | {
|
---|
3599 | int rc2;
|
---|
3600 | if (ppvR3)
|
---|
3601 | rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
|
---|
3602 | RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, NIL_RTR0PROCESS);
|
---|
3603 | else
|
---|
3604 | Mem.MapObjR3 = NIL_RTR0MEMOBJ;
|
---|
3605 | if (RT_SUCCESS(rc))
|
---|
3606 | {
|
---|
3607 | Mem.eType = MEMREF_TYPE_PAGE;
|
---|
3608 | rc = supdrvMemAdd(&Mem, pSession);
|
---|
3609 | if (!rc)
|
---|
3610 | {
|
---|
3611 | if (ppvR3)
|
---|
3612 | *ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
|
---|
3613 | if (ppvR0)
|
---|
3614 | *ppvR0 = RTR0MemObjAddress(Mem.MemObj);
|
---|
3615 | if (paPages)
|
---|
3616 | {
|
---|
3617 | uint32_t iPage = cPages;
|
---|
3618 | while (iPage-- > 0)
|
---|
3619 | {
|
---|
3620 | paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MapObjR3, iPage);
|
---|
3621 | Assert(paPages[iPage] != NIL_RTHCPHYS);
|
---|
3622 | }
|
---|
3623 | }
|
---|
3624 | return VINF_SUCCESS;
|
---|
3625 | }
|
---|
3626 |
|
---|
3627 | rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
3628 | AssertRC(rc2);
|
---|
3629 | }
|
---|
3630 |
|
---|
3631 | rc2 = RTR0MemObjFree(Mem.MemObj, false);
|
---|
3632 | AssertRC(rc2);
|
---|
3633 | }
|
---|
3634 | return rc;
|
---|
3635 | }
|
---|
3636 |
|
---|
3637 |
|
---|
3638 | /**
|
---|
3639 | * Maps a chunk of memory previously allocated by SUPR0PageAllocEx into kernel
|
---|
3640 | * space.
|
---|
3641 | *
|
---|
3642 | * @returns IPRT status code.
|
---|
3643 | * @param pSession The session to associated the allocation with.
|
---|
3644 | * @param pvR3 The ring-3 address returned by SUPR0PageAllocEx.
|
---|
3645 | * @param offSub Where to start mapping. Must be page aligned.
|
---|
3646 | * @param cbSub How much to map. Must be page aligned.
|
---|
3647 | * @param fFlags Flags, MBZ.
|
---|
3648 | * @param ppvR0 Where to return the address of the ring-0 mapping on
|
---|
3649 | * success.
|
---|
3650 | */
|
---|
3651 | SUPR0DECL(int) SUPR0PageMapKernel(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t offSub, uint32_t cbSub,
|
---|
3652 | uint32_t fFlags, PRTR0PTR ppvR0)
|
---|
3653 | {
|
---|
3654 | int rc;
|
---|
3655 | PSUPDRVBUNDLE pBundle;
|
---|
3656 | RTR0MEMOBJ hMemObj = NIL_RTR0MEMOBJ;
|
---|
3657 | LogFlow(("SUPR0PageMapKernel: pSession=%p pvR3=%p offSub=%#x cbSub=%#x\n", pSession, pvR3, offSub, cbSub));
|
---|
3658 |
|
---|
3659 | /*
|
---|
3660 | * Validate input. The allowed allocation size must be at least equal to the maximum guest VRAM size.
|
---|
3661 | */
|
---|
3662 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3663 | AssertPtrNullReturn(ppvR0, VERR_INVALID_POINTER);
|
---|
3664 | AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
|
---|
3665 | AssertReturn(!(offSub & PAGE_OFFSET_MASK), VERR_INVALID_PARAMETER);
|
---|
3666 | AssertReturn(!(cbSub & PAGE_OFFSET_MASK), VERR_INVALID_PARAMETER);
|
---|
3667 | AssertReturn(cbSub, VERR_INVALID_PARAMETER);
|
---|
3668 |
|
---|
3669 | /*
|
---|
3670 | * Find the memory object.
|
---|
3671 | */
|
---|
3672 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
3673 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
3674 | {
|
---|
3675 | if (pBundle->cUsed > 0)
|
---|
3676 | {
|
---|
3677 | unsigned i;
|
---|
3678 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
3679 | {
|
---|
3680 | if ( ( pBundle->aMem[i].eType == MEMREF_TYPE_PAGE
|
---|
3681 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
3682 | && pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
|
---|
3683 | && RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == pvR3)
|
---|
3684 | || ( pBundle->aMem[i].eType == MEMREF_TYPE_LOCKED
|
---|
3685 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
3686 | && pBundle->aMem[i].MapObjR3 == NIL_RTR0MEMOBJ
|
---|
3687 | && RTR0MemObjAddressR3(pBundle->aMem[i].MemObj) == pvR3))
|
---|
3688 | {
|
---|
3689 | hMemObj = pBundle->aMem[i].MemObj;
|
---|
3690 | break;
|
---|
3691 | }
|
---|
3692 | }
|
---|
3693 | }
|
---|
3694 | }
|
---|
3695 | RTSpinlockRelease(pSession->Spinlock);
|
---|
3696 |
|
---|
3697 | rc = VERR_INVALID_PARAMETER;
|
---|
3698 | if (hMemObj != NIL_RTR0MEMOBJ)
|
---|
3699 | {
|
---|
3700 | /*
|
---|
3701 | * Do some further input validations before calling IPRT.
|
---|
3702 | * (Cleanup is done indirectly by telling RTR0MemObjFree to include mappings.)
|
---|
3703 | */
|
---|
3704 | size_t cbMemObj = RTR0MemObjSize(hMemObj);
|
---|
3705 | if ( offSub < cbMemObj
|
---|
3706 | && cbSub <= cbMemObj
|
---|
3707 | && offSub + cbSub <= cbMemObj)
|
---|
3708 | {
|
---|
3709 | RTR0MEMOBJ hMapObj;
|
---|
3710 | rc = RTR0MemObjMapKernelEx(&hMapObj, hMemObj, (void *)-1, 0,
|
---|
3711 | RTMEM_PROT_READ | RTMEM_PROT_WRITE, offSub, cbSub);
|
---|
3712 | if (RT_SUCCESS(rc))
|
---|
3713 | *ppvR0 = RTR0MemObjAddress(hMapObj);
|
---|
3714 | }
|
---|
3715 | else
|
---|
3716 | SUPR0Printf("SUPR0PageMapKernel: cbMemObj=%#x offSub=%#x cbSub=%#x\n", cbMemObj, offSub, cbSub);
|
---|
3717 |
|
---|
3718 | }
|
---|
3719 | return rc;
|
---|
3720 | }
|
---|
3721 |
|
---|
3722 |
|
---|
3723 | /**
|
---|
3724 | * Changes the page level protection of one or more pages previously allocated
|
---|
3725 | * by SUPR0PageAllocEx.
|
---|
3726 | *
|
---|
3727 | * @returns IPRT status code.
|
---|
3728 | * @param pSession The session to associated the allocation with.
|
---|
3729 | * @param pvR3 The ring-3 address returned by SUPR0PageAllocEx.
|
---|
3730 | * NIL_RTR3PTR if the ring-3 mapping should be unaffected.
|
---|
3731 | * @param pvR0 The ring-0 address returned by SUPR0PageAllocEx.
|
---|
3732 | * NIL_RTR0PTR if the ring-0 mapping should be unaffected.
|
---|
3733 | * @param offSub Where to start changing. Must be page aligned.
|
---|
3734 | * @param cbSub How much to change. Must be page aligned.
|
---|
3735 | * @param fProt The new page level protection, see RTMEM_PROT_*.
|
---|
3736 | */
|
---|
3737 | SUPR0DECL(int) SUPR0PageProtect(PSUPDRVSESSION pSession, RTR3PTR pvR3, RTR0PTR pvR0, uint32_t offSub, uint32_t cbSub, uint32_t fProt)
|
---|
3738 | {
|
---|
3739 | int rc;
|
---|
3740 | PSUPDRVBUNDLE pBundle;
|
---|
3741 | RTR0MEMOBJ hMemObjR0 = NIL_RTR0MEMOBJ;
|
---|
3742 | RTR0MEMOBJ hMemObjR3 = NIL_RTR0MEMOBJ;
|
---|
3743 | LogFlow(("SUPR0PageProtect: pSession=%p pvR3=%p pvR0=%p offSub=%#x cbSub=%#x fProt-%#x\n", pSession, pvR3, pvR0, offSub, cbSub, fProt));
|
---|
3744 |
|
---|
3745 | /*
|
---|
3746 | * Validate input. The allowed allocation size must be at least equal to the maximum guest VRAM size.
|
---|
3747 | */
|
---|
3748 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3749 | AssertReturn(!(fProt & ~(RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC | RTMEM_PROT_NONE)), VERR_INVALID_PARAMETER);
|
---|
3750 | AssertReturn(!(offSub & PAGE_OFFSET_MASK), VERR_INVALID_PARAMETER);
|
---|
3751 | AssertReturn(!(cbSub & PAGE_OFFSET_MASK), VERR_INVALID_PARAMETER);
|
---|
3752 | AssertReturn(cbSub, VERR_INVALID_PARAMETER);
|
---|
3753 |
|
---|
3754 | /*
|
---|
3755 | * Find the memory object.
|
---|
3756 | */
|
---|
3757 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
3758 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
3759 | {
|
---|
3760 | if (pBundle->cUsed > 0)
|
---|
3761 | {
|
---|
3762 | unsigned i;
|
---|
3763 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
3764 | {
|
---|
3765 | if ( pBundle->aMem[i].eType == MEMREF_TYPE_PAGE
|
---|
3766 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
3767 | && ( pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
|
---|
3768 | || pvR3 == NIL_RTR3PTR)
|
---|
3769 | && ( pvR0 == NIL_RTR0PTR
|
---|
3770 | || RTR0MemObjAddress(pBundle->aMem[i].MemObj) == pvR0)
|
---|
3771 | && ( pvR3 == NIL_RTR3PTR
|
---|
3772 | || RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == pvR3))
|
---|
3773 | {
|
---|
3774 | if (pvR0 != NIL_RTR0PTR)
|
---|
3775 | hMemObjR0 = pBundle->aMem[i].MemObj;
|
---|
3776 | if (pvR3 != NIL_RTR3PTR)
|
---|
3777 | hMemObjR3 = pBundle->aMem[i].MapObjR3;
|
---|
3778 | break;
|
---|
3779 | }
|
---|
3780 | }
|
---|
3781 | }
|
---|
3782 | }
|
---|
3783 | RTSpinlockRelease(pSession->Spinlock);
|
---|
3784 |
|
---|
3785 | rc = VERR_INVALID_PARAMETER;
|
---|
3786 | if ( hMemObjR0 != NIL_RTR0MEMOBJ
|
---|
3787 | || hMemObjR3 != NIL_RTR0MEMOBJ)
|
---|
3788 | {
|
---|
3789 | /*
|
---|
3790 | * Do some further input validations before calling IPRT.
|
---|
3791 | */
|
---|
3792 | size_t cbMemObj = hMemObjR0 != NIL_RTR0PTR ? RTR0MemObjSize(hMemObjR0) : RTR0MemObjSize(hMemObjR3);
|
---|
3793 | if ( offSub < cbMemObj
|
---|
3794 | && cbSub <= cbMemObj
|
---|
3795 | && offSub + cbSub <= cbMemObj)
|
---|
3796 | {
|
---|
3797 | rc = VINF_SUCCESS;
|
---|
3798 | if (hMemObjR3 != NIL_RTR0PTR)
|
---|
3799 | rc = RTR0MemObjProtect(hMemObjR3, offSub, cbSub, fProt);
|
---|
3800 | if (hMemObjR0 != NIL_RTR0PTR && RT_SUCCESS(rc))
|
---|
3801 | rc = RTR0MemObjProtect(hMemObjR0, offSub, cbSub, fProt);
|
---|
3802 | }
|
---|
3803 | else
|
---|
3804 | SUPR0Printf("SUPR0PageMapKernel: cbMemObj=%#x offSub=%#x cbSub=%#x\n", cbMemObj, offSub, cbSub);
|
---|
3805 |
|
---|
3806 | }
|
---|
3807 | return rc;
|
---|
3808 |
|
---|
3809 | }
|
---|
3810 |
|
---|
3811 |
|
---|
3812 | /**
|
---|
3813 | * Free memory allocated by SUPR0PageAlloc() and SUPR0PageAllocEx().
|
---|
3814 | *
|
---|
3815 | * @returns IPRT status code.
|
---|
3816 | * @param pSession The session owning the allocation.
|
---|
3817 | * @param pvR3 The Ring-3 address returned by SUPR0PageAlloc() or
|
---|
3818 | * SUPR0PageAllocEx().
|
---|
3819 | */
|
---|
3820 | SUPR0DECL(int) SUPR0PageFree(PSUPDRVSESSION pSession, RTR3PTR pvR3)
|
---|
3821 | {
|
---|
3822 | LogFlow(("SUPR0PageFree: pSession=%p pvR3=%p\n", pSession, (void *)pvR3));
|
---|
3823 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
3824 | return supdrvMemRelease(pSession, (RTHCUINTPTR)pvR3, MEMREF_TYPE_PAGE);
|
---|
3825 | }
|
---|
3826 |
|
---|
3827 |
|
---|
3828 | /**
|
---|
3829 | * Reports a bad context, currenctly that means EFLAGS.AC is 0 instead of 1.
|
---|
3830 | *
|
---|
3831 | * @param pDevExt The device extension.
|
---|
3832 | * @param pszFile The source file where the caller detected the bad
|
---|
3833 | * context.
|
---|
3834 | * @param uLine The line number in @a pszFile.
|
---|
3835 | * @param pszExtra Optional additional message to give further hints.
|
---|
3836 | */
|
---|
3837 | void VBOXCALL supdrvBadContext(PSUPDRVDEVEXT pDevExt, const char *pszFile, uint32_t uLine, const char *pszExtra)
|
---|
3838 | {
|
---|
3839 | uint32_t cCalls;
|
---|
3840 |
|
---|
3841 | /*
|
---|
3842 | * Shorten the filename before displaying the message.
|
---|
3843 | */
|
---|
3844 | for (;;)
|
---|
3845 | {
|
---|
3846 | const char *pszTmp = strchr(pszFile, '/');
|
---|
3847 | if (!pszTmp)
|
---|
3848 | pszTmp = strchr(pszFile, '\\');
|
---|
3849 | if (!pszTmp)
|
---|
3850 | break;
|
---|
3851 | pszFile = pszTmp + 1;
|
---|
3852 | }
|
---|
3853 | if (RT_VALID_PTR(pszExtra) && *pszExtra)
|
---|
3854 | SUPR0Printf("vboxdrv: Bad CPU context error at line %u in %s: %s\n", uLine, pszFile, pszExtra);
|
---|
3855 | else
|
---|
3856 | SUPR0Printf("vboxdrv: Bad CPU context error at line %u in %s!\n", uLine, pszFile);
|
---|
3857 |
|
---|
3858 | /*
|
---|
3859 | * Record the incident so that we stand a chance of blocking I/O controls
|
---|
3860 | * before panicing the system.
|
---|
3861 | */
|
---|
3862 | cCalls = ASMAtomicIncU32(&pDevExt->cBadContextCalls);
|
---|
3863 | if (cCalls > UINT32_MAX - _1K)
|
---|
3864 | ASMAtomicWriteU32(&pDevExt->cBadContextCalls, UINT32_MAX - _1K);
|
---|
3865 | }
|
---|
3866 |
|
---|
3867 |
|
---|
3868 | /**
|
---|
3869 | * Reports a bad context, currenctly that means EFLAGS.AC is 0 instead of 1.
|
---|
3870 | *
|
---|
3871 | * @param pSession The session of the caller.
|
---|
3872 | * @param pszFile The source file where the caller detected the bad
|
---|
3873 | * context.
|
---|
3874 | * @param uLine The line number in @a pszFile.
|
---|
3875 | * @param pszExtra Optional additional message to give further hints.
|
---|
3876 | */
|
---|
3877 | SUPR0DECL(void) SUPR0BadContext(PSUPDRVSESSION pSession, const char *pszFile, uint32_t uLine, const char *pszExtra)
|
---|
3878 | {
|
---|
3879 | PSUPDRVDEVEXT pDevExt;
|
---|
3880 |
|
---|
3881 | AssertReturnVoid(SUP_IS_SESSION_VALID(pSession));
|
---|
3882 | pDevExt = pSession->pDevExt;
|
---|
3883 |
|
---|
3884 | supdrvBadContext(pDevExt, pszFile, uLine, pszExtra);
|
---|
3885 | }
|
---|
3886 |
|
---|
3887 |
|
---|
3888 | /**
|
---|
3889 | * Gets the paging mode of the current CPU.
|
---|
3890 | *
|
---|
3891 | * @returns Paging mode, SUPPAGEINGMODE_INVALID on error.
|
---|
3892 | */
|
---|
3893 | SUPR0DECL(SUPPAGINGMODE) SUPR0GetPagingMode(void)
|
---|
3894 | {
|
---|
3895 | SUPPAGINGMODE enmMode;
|
---|
3896 |
|
---|
3897 | RTR0UINTREG cr0 = ASMGetCR0();
|
---|
3898 | if ((cr0 & (X86_CR0_PG | X86_CR0_PE)) != (X86_CR0_PG | X86_CR0_PE))
|
---|
3899 | enmMode = SUPPAGINGMODE_INVALID;
|
---|
3900 | else
|
---|
3901 | {
|
---|
3902 | RTR0UINTREG cr4 = ASMGetCR4();
|
---|
3903 | uint32_t fNXEPlusLMA = 0;
|
---|
3904 | if (cr4 & X86_CR4_PAE)
|
---|
3905 | {
|
---|
3906 | uint32_t fExtFeatures = ASMCpuId_EDX(0x80000001);
|
---|
3907 | if (fExtFeatures & (X86_CPUID_EXT_FEATURE_EDX_NX | X86_CPUID_EXT_FEATURE_EDX_LONG_MODE))
|
---|
3908 | {
|
---|
3909 | uint64_t efer = ASMRdMsr(MSR_K6_EFER);
|
---|
3910 | if ((fExtFeatures & X86_CPUID_EXT_FEATURE_EDX_NX) && (efer & MSR_K6_EFER_NXE))
|
---|
3911 | fNXEPlusLMA |= RT_BIT(0);
|
---|
3912 | if ((fExtFeatures & X86_CPUID_EXT_FEATURE_EDX_LONG_MODE) && (efer & MSR_K6_EFER_LMA))
|
---|
3913 | fNXEPlusLMA |= RT_BIT(1);
|
---|
3914 | }
|
---|
3915 | }
|
---|
3916 |
|
---|
3917 | switch ((cr4 & (X86_CR4_PAE | X86_CR4_PGE)) | fNXEPlusLMA)
|
---|
3918 | {
|
---|
3919 | case 0:
|
---|
3920 | enmMode = SUPPAGINGMODE_32_BIT;
|
---|
3921 | break;
|
---|
3922 |
|
---|
3923 | case X86_CR4_PGE:
|
---|
3924 | enmMode = SUPPAGINGMODE_32_BIT_GLOBAL;
|
---|
3925 | break;
|
---|
3926 |
|
---|
3927 | case X86_CR4_PAE:
|
---|
3928 | enmMode = SUPPAGINGMODE_PAE;
|
---|
3929 | break;
|
---|
3930 |
|
---|
3931 | case X86_CR4_PAE | RT_BIT(0):
|
---|
3932 | enmMode = SUPPAGINGMODE_PAE_NX;
|
---|
3933 | break;
|
---|
3934 |
|
---|
3935 | case X86_CR4_PAE | X86_CR4_PGE:
|
---|
3936 | enmMode = SUPPAGINGMODE_PAE_GLOBAL;
|
---|
3937 | break;
|
---|
3938 |
|
---|
3939 | case X86_CR4_PAE | X86_CR4_PGE | RT_BIT(0):
|
---|
3940 | enmMode = SUPPAGINGMODE_PAE_GLOBAL;
|
---|
3941 | break;
|
---|
3942 |
|
---|
3943 | case RT_BIT(1) | X86_CR4_PAE:
|
---|
3944 | enmMode = SUPPAGINGMODE_AMD64;
|
---|
3945 | break;
|
---|
3946 |
|
---|
3947 | case RT_BIT(1) | X86_CR4_PAE | RT_BIT(0):
|
---|
3948 | enmMode = SUPPAGINGMODE_AMD64_NX;
|
---|
3949 | break;
|
---|
3950 |
|
---|
3951 | case RT_BIT(1) | X86_CR4_PAE | X86_CR4_PGE:
|
---|
3952 | enmMode = SUPPAGINGMODE_AMD64_GLOBAL;
|
---|
3953 | break;
|
---|
3954 |
|
---|
3955 | case RT_BIT(1) | X86_CR4_PAE | X86_CR4_PGE | RT_BIT(0):
|
---|
3956 | enmMode = SUPPAGINGMODE_AMD64_GLOBAL_NX;
|
---|
3957 | break;
|
---|
3958 |
|
---|
3959 | default:
|
---|
3960 | AssertMsgFailed(("Cannot happen! cr4=%#x fNXEPlusLMA=%d\n", cr4, fNXEPlusLMA));
|
---|
3961 | enmMode = SUPPAGINGMODE_INVALID;
|
---|
3962 | break;
|
---|
3963 | }
|
---|
3964 | }
|
---|
3965 | return enmMode;
|
---|
3966 | }
|
---|
3967 |
|
---|
3968 |
|
---|
3969 | /**
|
---|
3970 | * Change CR4 and take care of the kernel CR4 shadow if applicable.
|
---|
3971 | *
|
---|
3972 | * CR4 shadow handling is required for Linux >= 4.0. Calling this function
|
---|
3973 | * instead of ASMSetCR4() is only necessary for semi-permanent CR4 changes
|
---|
3974 | * for code with interrupts enabled.
|
---|
3975 | *
|
---|
3976 | * @returns the old CR4 value.
|
---|
3977 | *
|
---|
3978 | * @param fOrMask bits to be set in CR4.
|
---|
3979 | * @param fAndMask bits to be cleard in CR4.
|
---|
3980 | *
|
---|
3981 | * @remarks Must be called with preemption/interrupts disabled.
|
---|
3982 | */
|
---|
3983 | SUPR0DECL(RTCCUINTREG) SUPR0ChangeCR4(RTCCUINTREG fOrMask, RTCCUINTREG fAndMask)
|
---|
3984 | {
|
---|
3985 | #ifdef RT_OS_LINUX
|
---|
3986 | return supdrvOSChangeCR4(fOrMask, fAndMask);
|
---|
3987 | #else
|
---|
3988 | RTCCUINTREG uOld = ASMGetCR4();
|
---|
3989 | RTCCUINTREG uNew = (uOld & fAndMask) | fOrMask;
|
---|
3990 | if (uNew != uOld)
|
---|
3991 | ASMSetCR4(uNew);
|
---|
3992 | return uOld;
|
---|
3993 | #endif
|
---|
3994 | }
|
---|
3995 |
|
---|
3996 |
|
---|
3997 | /**
|
---|
3998 | * Enables or disabled hardware virtualization extensions using native OS APIs.
|
---|
3999 | *
|
---|
4000 | * @returns VBox status code.
|
---|
4001 | * @retval VINF_SUCCESS on success.
|
---|
4002 | * @retval VERR_NOT_SUPPORTED if not supported by the native OS.
|
---|
4003 | *
|
---|
4004 | * @param fEnable Whether to enable or disable.
|
---|
4005 | */
|
---|
4006 | SUPR0DECL(int) SUPR0EnableVTx(bool fEnable)
|
---|
4007 | {
|
---|
4008 | #ifdef RT_OS_DARWIN
|
---|
4009 | return supdrvOSEnableVTx(fEnable);
|
---|
4010 | #else
|
---|
4011 | RT_NOREF1(fEnable);
|
---|
4012 | return VERR_NOT_SUPPORTED;
|
---|
4013 | #endif
|
---|
4014 | }
|
---|
4015 |
|
---|
4016 |
|
---|
4017 | /**
|
---|
4018 | * Suspends hardware virtualization extensions using the native OS API.
|
---|
4019 | *
|
---|
4020 | * This is called prior to entering raw-mode context.
|
---|
4021 | *
|
---|
4022 | * @returns @c true if suspended, @c false if not.
|
---|
4023 | */
|
---|
4024 | SUPR0DECL(bool) SUPR0SuspendVTxOnCpu(void)
|
---|
4025 | {
|
---|
4026 | #ifdef RT_OS_DARWIN
|
---|
4027 | return supdrvOSSuspendVTxOnCpu();
|
---|
4028 | #else
|
---|
4029 | return false;
|
---|
4030 | #endif
|
---|
4031 | }
|
---|
4032 |
|
---|
4033 |
|
---|
4034 | /**
|
---|
4035 | * Resumes hardware virtualization extensions using the native OS API.
|
---|
4036 | *
|
---|
4037 | * This is called after to entering raw-mode context.
|
---|
4038 | *
|
---|
4039 | * @param fSuspended The return value of SUPR0SuspendVTxOnCpu.
|
---|
4040 | */
|
---|
4041 | SUPR0DECL(void) SUPR0ResumeVTxOnCpu(bool fSuspended)
|
---|
4042 | {
|
---|
4043 | #ifdef RT_OS_DARWIN
|
---|
4044 | supdrvOSResumeVTxOnCpu(fSuspended);
|
---|
4045 | #else
|
---|
4046 | RT_NOREF1(fSuspended);
|
---|
4047 | Assert(!fSuspended);
|
---|
4048 | #endif
|
---|
4049 | }
|
---|
4050 |
|
---|
4051 |
|
---|
4052 | SUPR0DECL(int) SUPR0GetCurrentGdtRw(RTHCUINTPTR *pGdtRw)
|
---|
4053 | {
|
---|
4054 | #ifdef RT_OS_LINUX
|
---|
4055 | return supdrvOSGetCurrentGdtRw(pGdtRw);
|
---|
4056 | #else
|
---|
4057 | NOREF(pGdtRw);
|
---|
4058 | return VERR_NOT_IMPLEMENTED;
|
---|
4059 | #endif
|
---|
4060 | }
|
---|
4061 |
|
---|
4062 |
|
---|
4063 | /**
|
---|
4064 | * Checks if Intel VT-x feature is usable on this CPU.
|
---|
4065 | *
|
---|
4066 | * @returns VBox status code.
|
---|
4067 | * @param pfIsSmxModeAmbiguous Where to return whether the SMX mode causes
|
---|
4068 | * ambiguity that makes us unsure whether we
|
---|
4069 | * really can use VT-x or not.
|
---|
4070 | *
|
---|
4071 | * @remarks Must be called with preemption disabled.
|
---|
4072 | * The caller is also expected to check that the CPU is an Intel (or
|
---|
4073 | * VIA) CPU -and- that it supports VT-x. Otherwise, this function
|
---|
4074 | * might throw a \#GP fault as it tries to read/write MSRs that may not
|
---|
4075 | * be present!
|
---|
4076 | */
|
---|
4077 | SUPR0DECL(int) SUPR0GetVmxUsability(bool *pfIsSmxModeAmbiguous)
|
---|
4078 | {
|
---|
4079 | uint64_t u64FeatMsr;
|
---|
4080 | bool fMaybeSmxMode;
|
---|
4081 | bool fMsrLocked;
|
---|
4082 | bool fSmxVmxAllowed;
|
---|
4083 | bool fVmxAllowed;
|
---|
4084 | bool fIsSmxModeAmbiguous;
|
---|
4085 | int rc;
|
---|
4086 |
|
---|
4087 | Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
|
---|
4088 |
|
---|
4089 | u64FeatMsr = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
|
---|
4090 | fMaybeSmxMode = RT_BOOL(ASMGetCR4() & X86_CR4_SMXE);
|
---|
4091 | fMsrLocked = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_LOCK);
|
---|
4092 | fSmxVmxAllowed = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_SMX_VMXON);
|
---|
4093 | fVmxAllowed = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_VMXON);
|
---|
4094 | fIsSmxModeAmbiguous = false;
|
---|
4095 | rc = VERR_INTERNAL_ERROR_5;
|
---|
4096 |
|
---|
4097 | /* Check if the LOCK bit is set but excludes the required VMXON bit. */
|
---|
4098 | if (fMsrLocked)
|
---|
4099 | {
|
---|
4100 | if (fVmxAllowed && fSmxVmxAllowed)
|
---|
4101 | rc = VINF_SUCCESS;
|
---|
4102 | else if (!fVmxAllowed && !fSmxVmxAllowed)
|
---|
4103 | rc = VERR_VMX_MSR_ALL_VMX_DISABLED;
|
---|
4104 | else if (!fMaybeSmxMode)
|
---|
4105 | {
|
---|
4106 | if (fVmxAllowed)
|
---|
4107 | rc = VINF_SUCCESS;
|
---|
4108 | else
|
---|
4109 | rc = VERR_VMX_MSR_VMX_DISABLED;
|
---|
4110 | }
|
---|
4111 | else
|
---|
4112 | {
|
---|
4113 | /*
|
---|
4114 | * CR4.SMXE is set but this doesn't mean the CPU is necessarily in SMX mode. We shall assume
|
---|
4115 | * that it is -not- and that it is a stupid BIOS/OS setting CR4.SMXE for no good reason.
|
---|
4116 | * See @bugref{6873}.
|
---|
4117 | */
|
---|
4118 | Assert(fMaybeSmxMode == true);
|
---|
4119 | fIsSmxModeAmbiguous = true;
|
---|
4120 | rc = VINF_SUCCESS;
|
---|
4121 | }
|
---|
4122 | }
|
---|
4123 | else
|
---|
4124 | {
|
---|
4125 | /*
|
---|
4126 | * MSR is not yet locked; we can change it ourselves here. Once the lock bit is set,
|
---|
4127 | * this MSR can no longer be modified.
|
---|
4128 | *
|
---|
4129 | * Set both the VMX and SMX_VMX bits (if supported) as we can't determine SMX mode
|
---|
4130 | * accurately. See @bugref{6873}.
|
---|
4131 | *
|
---|
4132 | * We need to check for SMX hardware support here, before writing the MSR as
|
---|
4133 | * otherwise we will #GP fault on CPUs that do not support it. Callers do not check
|
---|
4134 | * for it.
|
---|
4135 | */
|
---|
4136 | uint32_t fFeaturesECX, uDummy;
|
---|
4137 | #ifdef VBOX_STRICT
|
---|
4138 | /* Callers should have verified these at some point. */
|
---|
4139 | uint32_t uMaxId, uVendorEBX, uVendorECX, uVendorEDX;
|
---|
4140 | ASMCpuId(0, &uMaxId, &uVendorEBX, &uVendorECX, &uVendorEDX);
|
---|
4141 | Assert(ASMIsValidStdRange(uMaxId));
|
---|
4142 | Assert( ASMIsIntelCpuEx( uVendorEBX, uVendorECX, uVendorEDX)
|
---|
4143 | || ASMIsViaCentaurCpuEx(uVendorEBX, uVendorECX, uVendorEDX));
|
---|
4144 | #endif
|
---|
4145 | ASMCpuId(1, &uDummy, &uDummy, &fFeaturesECX, &uDummy);
|
---|
4146 | bool fSmxVmxHwSupport = false;
|
---|
4147 | if ( (fFeaturesECX & X86_CPUID_FEATURE_ECX_VMX)
|
---|
4148 | && (fFeaturesECX & X86_CPUID_FEATURE_ECX_SMX))
|
---|
4149 | fSmxVmxHwSupport = true;
|
---|
4150 |
|
---|
4151 | u64FeatMsr |= MSR_IA32_FEATURE_CONTROL_LOCK
|
---|
4152 | | MSR_IA32_FEATURE_CONTROL_VMXON;
|
---|
4153 | if (fSmxVmxHwSupport)
|
---|
4154 | u64FeatMsr |= MSR_IA32_FEATURE_CONTROL_SMX_VMXON;
|
---|
4155 |
|
---|
4156 | /*
|
---|
4157 | * Commit.
|
---|
4158 | */
|
---|
4159 | ASMWrMsr(MSR_IA32_FEATURE_CONTROL, u64FeatMsr);
|
---|
4160 |
|
---|
4161 | /*
|
---|
4162 | * Verify.
|
---|
4163 | */
|
---|
4164 | u64FeatMsr = ASMRdMsr(MSR_IA32_FEATURE_CONTROL);
|
---|
4165 | fMsrLocked = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_LOCK);
|
---|
4166 | if (fMsrLocked)
|
---|
4167 | {
|
---|
4168 | fSmxVmxAllowed = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_SMX_VMXON);
|
---|
4169 | fVmxAllowed = RT_BOOL(u64FeatMsr & MSR_IA32_FEATURE_CONTROL_VMXON);
|
---|
4170 | if ( fVmxAllowed
|
---|
4171 | && ( !fSmxVmxHwSupport
|
---|
4172 | || fSmxVmxAllowed))
|
---|
4173 | {
|
---|
4174 | rc = VINF_SUCCESS;
|
---|
4175 | }
|
---|
4176 | else
|
---|
4177 | rc = !fSmxVmxHwSupport ? VERR_VMX_MSR_VMX_ENABLE_FAILED : VERR_VMX_MSR_SMX_VMX_ENABLE_FAILED;
|
---|
4178 | }
|
---|
4179 | else
|
---|
4180 | rc = VERR_VMX_MSR_LOCKING_FAILED;
|
---|
4181 | }
|
---|
4182 |
|
---|
4183 | if (pfIsSmxModeAmbiguous)
|
---|
4184 | *pfIsSmxModeAmbiguous = fIsSmxModeAmbiguous;
|
---|
4185 |
|
---|
4186 | return rc;
|
---|
4187 | }
|
---|
4188 |
|
---|
4189 |
|
---|
4190 | /**
|
---|
4191 | * Checks if AMD-V SVM feature is usable on this CPU.
|
---|
4192 | *
|
---|
4193 | * @returns VBox status code.
|
---|
4194 | * @param fInitSvm If usable, try to initialize SVM on this CPU.
|
---|
4195 | *
|
---|
4196 | * @remarks Must be called with preemption disabled.
|
---|
4197 | */
|
---|
4198 | SUPR0DECL(int) SUPR0GetSvmUsability(bool fInitSvm)
|
---|
4199 | {
|
---|
4200 | int rc;
|
---|
4201 | uint64_t fVmCr;
|
---|
4202 | uint64_t fEfer;
|
---|
4203 |
|
---|
4204 | Assert(!RTThreadPreemptIsEnabled(NIL_RTTHREAD));
|
---|
4205 | fVmCr = ASMRdMsr(MSR_K8_VM_CR);
|
---|
4206 | if (!(fVmCr & MSR_K8_VM_CR_SVM_DISABLE))
|
---|
4207 | {
|
---|
4208 | rc = VINF_SUCCESS;
|
---|
4209 | if (fInitSvm)
|
---|
4210 | {
|
---|
4211 | /* Turn on SVM in the EFER MSR. */
|
---|
4212 | fEfer = ASMRdMsr(MSR_K6_EFER);
|
---|
4213 | if (fEfer & MSR_K6_EFER_SVME)
|
---|
4214 | rc = VERR_SVM_IN_USE;
|
---|
4215 | else
|
---|
4216 | {
|
---|
4217 | ASMWrMsr(MSR_K6_EFER, fEfer | MSR_K6_EFER_SVME);
|
---|
4218 |
|
---|
4219 | /* Paranoia. */
|
---|
4220 | fEfer = ASMRdMsr(MSR_K6_EFER);
|
---|
4221 | if (fEfer & MSR_K6_EFER_SVME)
|
---|
4222 | {
|
---|
4223 | /* Restore previous value. */
|
---|
4224 | ASMWrMsr(MSR_K6_EFER, fEfer & ~MSR_K6_EFER_SVME);
|
---|
4225 | }
|
---|
4226 | else
|
---|
4227 | rc = VERR_SVM_ILLEGAL_EFER_MSR;
|
---|
4228 | }
|
---|
4229 | }
|
---|
4230 | }
|
---|
4231 | else
|
---|
4232 | rc = VERR_SVM_DISABLED;
|
---|
4233 | return rc;
|
---|
4234 | }
|
---|
4235 |
|
---|
4236 |
|
---|
4237 | /**
|
---|
4238 | * Queries the AMD-V and VT-x capabilities of the calling CPU.
|
---|
4239 | *
|
---|
4240 | * @returns VBox status code.
|
---|
4241 | * @retval VERR_VMX_NO_VMX
|
---|
4242 | * @retval VERR_VMX_MSR_ALL_VMX_DISABLED
|
---|
4243 | * @retval VERR_VMX_MSR_VMX_DISABLED
|
---|
4244 | * @retval VERR_VMX_MSR_LOCKING_FAILED
|
---|
4245 | * @retval VERR_VMX_MSR_VMX_ENABLE_FAILED
|
---|
4246 | * @retval VERR_VMX_MSR_SMX_VMX_ENABLE_FAILED
|
---|
4247 | * @retval VERR_SVM_NO_SVM
|
---|
4248 | * @retval VERR_SVM_DISABLED
|
---|
4249 | * @retval VERR_UNSUPPORTED_CPU if not identifiable as an AMD, Intel or VIA
|
---|
4250 | * (centaur) CPU.
|
---|
4251 | *
|
---|
4252 | * @param pfCaps Where to store the capabilities.
|
---|
4253 | */
|
---|
4254 | int VBOXCALL supdrvQueryVTCapsInternal(uint32_t *pfCaps)
|
---|
4255 | {
|
---|
4256 | int rc = VERR_UNSUPPORTED_CPU;
|
---|
4257 | bool fIsSmxModeAmbiguous = false;
|
---|
4258 | RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
|
---|
4259 |
|
---|
4260 | /*
|
---|
4261 | * Input validation.
|
---|
4262 | */
|
---|
4263 | AssertPtrReturn(pfCaps, VERR_INVALID_POINTER);
|
---|
4264 |
|
---|
4265 | *pfCaps = 0;
|
---|
4266 | /* We may modify MSRs and re-read them, disable preemption so we make sure we don't migrate CPUs. */
|
---|
4267 | RTThreadPreemptDisable(&PreemptState);
|
---|
4268 | if (ASMHasCpuId())
|
---|
4269 | {
|
---|
4270 | uint32_t fFeaturesECX, fFeaturesEDX, uDummy;
|
---|
4271 | uint32_t uMaxId, uVendorEBX, uVendorECX, uVendorEDX;
|
---|
4272 |
|
---|
4273 | ASMCpuId(0, &uMaxId, &uVendorEBX, &uVendorECX, &uVendorEDX);
|
---|
4274 | ASMCpuId(1, &uDummy, &uDummy, &fFeaturesECX, &fFeaturesEDX);
|
---|
4275 |
|
---|
4276 | if ( ASMIsValidStdRange(uMaxId)
|
---|
4277 | && ( ASMIsIntelCpuEx( uVendorEBX, uVendorECX, uVendorEDX)
|
---|
4278 | || ASMIsViaCentaurCpuEx(uVendorEBX, uVendorECX, uVendorEDX) )
|
---|
4279 | )
|
---|
4280 | {
|
---|
4281 | if ( (fFeaturesECX & X86_CPUID_FEATURE_ECX_VMX)
|
---|
4282 | && (fFeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
|
---|
4283 | && (fFeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
|
---|
4284 | )
|
---|
4285 | {
|
---|
4286 | rc = SUPR0GetVmxUsability(&fIsSmxModeAmbiguous);
|
---|
4287 | if (rc == VINF_SUCCESS)
|
---|
4288 | {
|
---|
4289 | VMXCAPABILITY vtCaps;
|
---|
4290 |
|
---|
4291 | *pfCaps |= SUPVTCAPS_VT_X;
|
---|
4292 |
|
---|
4293 | vtCaps.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS);
|
---|
4294 | if (vtCaps.n.allowed1 & VMX_VMCS_CTRL_PROC_EXEC_USE_SECONDARY_EXEC_CTRL)
|
---|
4295 | {
|
---|
4296 | vtCaps.u = ASMRdMsr(MSR_IA32_VMX_PROCBASED_CTLS2);
|
---|
4297 | if (vtCaps.n.allowed1 & VMX_VMCS_CTRL_PROC_EXEC2_EPT)
|
---|
4298 | *pfCaps |= SUPVTCAPS_NESTED_PAGING;
|
---|
4299 | if (vtCaps.n.allowed1 & VMX_VMCS_CTRL_PROC_EXEC2_UNRESTRICTED_GUEST)
|
---|
4300 | *pfCaps |= SUPVTCAPS_VTX_UNRESTRICTED_GUEST;
|
---|
4301 | }
|
---|
4302 | }
|
---|
4303 | }
|
---|
4304 | else
|
---|
4305 | rc = VERR_VMX_NO_VMX;
|
---|
4306 | }
|
---|
4307 | else if ( ASMIsAmdCpuEx(uVendorEBX, uVendorECX, uVendorEDX)
|
---|
4308 | && ASMIsValidStdRange(uMaxId))
|
---|
4309 | {
|
---|
4310 | uint32_t fExtFeaturesEcx, uExtMaxId;
|
---|
4311 | ASMCpuId(0x80000000, &uExtMaxId, &uDummy, &uDummy, &uDummy);
|
---|
4312 | ASMCpuId(0x80000001, &uDummy, &uDummy, &fExtFeaturesEcx, &uDummy);
|
---|
4313 |
|
---|
4314 | /* Check if SVM is available. */
|
---|
4315 | if ( ASMIsValidExtRange(uExtMaxId)
|
---|
4316 | && uExtMaxId >= 0x8000000a
|
---|
4317 | && (fExtFeaturesEcx & X86_CPUID_AMD_FEATURE_ECX_SVM)
|
---|
4318 | && (fFeaturesEDX & X86_CPUID_FEATURE_EDX_MSR)
|
---|
4319 | && (fFeaturesEDX & X86_CPUID_FEATURE_EDX_FXSR)
|
---|
4320 | )
|
---|
4321 | {
|
---|
4322 | rc = SUPR0GetSvmUsability(false /* fInitSvm */);
|
---|
4323 | if (RT_SUCCESS(rc))
|
---|
4324 | {
|
---|
4325 | uint32_t fSvmFeatures;
|
---|
4326 | *pfCaps |= SUPVTCAPS_AMD_V;
|
---|
4327 |
|
---|
4328 | /* Query AMD-V features. */
|
---|
4329 | ASMCpuId(0x8000000a, &uDummy, &uDummy, &uDummy, &fSvmFeatures);
|
---|
4330 | if (fSvmFeatures & X86_CPUID_SVM_FEATURE_EDX_NESTED_PAGING)
|
---|
4331 | *pfCaps |= SUPVTCAPS_NESTED_PAGING;
|
---|
4332 | }
|
---|
4333 | }
|
---|
4334 | else
|
---|
4335 | rc = VERR_SVM_NO_SVM;
|
---|
4336 | }
|
---|
4337 | }
|
---|
4338 |
|
---|
4339 | RTThreadPreemptRestore(&PreemptState);
|
---|
4340 | if (fIsSmxModeAmbiguous)
|
---|
4341 | SUPR0Printf(("WARNING! CR4 hints SMX mode but your CPU is too secretive. Proceeding anyway... We wish you good luck!\n"));
|
---|
4342 | return rc;
|
---|
4343 | }
|
---|
4344 |
|
---|
4345 | /**
|
---|
4346 | * Queries the AMD-V and VT-x capabilities of the calling CPU.
|
---|
4347 | *
|
---|
4348 | * @returns VBox status code.
|
---|
4349 | * @retval VERR_VMX_NO_VMX
|
---|
4350 | * @retval VERR_VMX_MSR_ALL_VMX_DISABLED
|
---|
4351 | * @retval VERR_VMX_MSR_VMX_DISABLED
|
---|
4352 | * @retval VERR_VMX_MSR_LOCKING_FAILED
|
---|
4353 | * @retval VERR_VMX_MSR_VMX_ENABLE_FAILED
|
---|
4354 | * @retval VERR_VMX_MSR_SMX_VMX_ENABLE_FAILED
|
---|
4355 | * @retval VERR_SVM_NO_SVM
|
---|
4356 | * @retval VERR_SVM_DISABLED
|
---|
4357 | * @retval VERR_UNSUPPORTED_CPU if not identifiable as an AMD, Intel or VIA
|
---|
4358 | * (centaur) CPU.
|
---|
4359 | *
|
---|
4360 | * @param pSession The session handle.
|
---|
4361 | * @param pfCaps Where to store the capabilities.
|
---|
4362 | */
|
---|
4363 | SUPR0DECL(int) SUPR0QueryVTCaps(PSUPDRVSESSION pSession, uint32_t *pfCaps)
|
---|
4364 | {
|
---|
4365 | /*
|
---|
4366 | * Input validation.
|
---|
4367 | */
|
---|
4368 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4369 | AssertPtrReturn(pfCaps, VERR_INVALID_POINTER);
|
---|
4370 |
|
---|
4371 | /*
|
---|
4372 | * Call common worker.
|
---|
4373 | */
|
---|
4374 | return supdrvQueryVTCapsInternal(pfCaps);
|
---|
4375 | }
|
---|
4376 |
|
---|
4377 |
|
---|
4378 | /**
|
---|
4379 | * Queries the CPU microcode revision.
|
---|
4380 | *
|
---|
4381 | * @returns VBox status code.
|
---|
4382 | * @retval VERR_UNSUPPORTED_CPU if not identifiable as a processor with
|
---|
4383 | * readable microcode rev.
|
---|
4384 | *
|
---|
4385 | * @param puRevision Where to store the microcode revision.
|
---|
4386 | */
|
---|
4387 | int VBOXCALL supdrvQueryUcodeRev(uint32_t *puRevision)
|
---|
4388 | {
|
---|
4389 | int rc = VERR_UNSUPPORTED_CPU;
|
---|
4390 | RTTHREADPREEMPTSTATE PreemptState = RTTHREADPREEMPTSTATE_INITIALIZER;
|
---|
4391 |
|
---|
4392 | /*
|
---|
4393 | * Input validation.
|
---|
4394 | */
|
---|
4395 | AssertPtrReturn(puRevision, VERR_INVALID_POINTER);
|
---|
4396 |
|
---|
4397 | *puRevision = 0;
|
---|
4398 |
|
---|
4399 | /* Disable preemption so we make sure we don't migrate CPUs, just in case. */
|
---|
4400 | /* NB: We assume that there aren't mismatched microcode revs in the system. */
|
---|
4401 | RTThreadPreemptDisable(&PreemptState);
|
---|
4402 |
|
---|
4403 | if (ASMHasCpuId())
|
---|
4404 | {
|
---|
4405 | uint32_t uDummy, uTFMSEAX;
|
---|
4406 | uint32_t uMaxId, uVendorEBX, uVendorECX, uVendorEDX;
|
---|
4407 |
|
---|
4408 | ASMCpuId(0, &uMaxId, &uVendorEBX, &uVendorECX, &uVendorEDX);
|
---|
4409 | ASMCpuId(1, &uTFMSEAX, &uDummy, &uDummy, &uDummy);
|
---|
4410 |
|
---|
4411 | if (ASMIsValidStdRange(uMaxId))
|
---|
4412 | {
|
---|
4413 | uint64_t uRevMsr;
|
---|
4414 | if (ASMIsIntelCpuEx(uVendorEBX, uVendorECX, uVendorEDX))
|
---|
4415 | {
|
---|
4416 | /* Architectural MSR available on Pentium Pro and later. */
|
---|
4417 | if (ASMGetCpuFamily(uTFMSEAX) >= 6)
|
---|
4418 | {
|
---|
4419 | /* Revision is in the high dword. */
|
---|
4420 | uRevMsr = ASMRdMsr(MSR_IA32_BIOS_SIGN_ID);
|
---|
4421 | *puRevision = RT_HIDWORD(uRevMsr);
|
---|
4422 | rc = VINF_SUCCESS;
|
---|
4423 | }
|
---|
4424 | }
|
---|
4425 | else if (ASMIsAmdCpuEx(uVendorEBX, uVendorECX, uVendorEDX))
|
---|
4426 | {
|
---|
4427 | /* Not well documented, but at least all AMD64 CPUs support this. */
|
---|
4428 | if (ASMGetCpuFamily(uTFMSEAX) >= 15)
|
---|
4429 | {
|
---|
4430 | /* Revision is in the low dword. */
|
---|
4431 | uRevMsr = ASMRdMsr(MSR_IA32_BIOS_SIGN_ID); /* Same MSR as Intel. */
|
---|
4432 | *puRevision = RT_LODWORD(uRevMsr);
|
---|
4433 | rc = VINF_SUCCESS;
|
---|
4434 | }
|
---|
4435 | }
|
---|
4436 | }
|
---|
4437 | }
|
---|
4438 |
|
---|
4439 | RTThreadPreemptRestore(&PreemptState);
|
---|
4440 |
|
---|
4441 | return rc;
|
---|
4442 | }
|
---|
4443 |
|
---|
4444 | /**
|
---|
4445 | * Queries the CPU microcode revision.
|
---|
4446 | *
|
---|
4447 | * @returns VBox status code.
|
---|
4448 | * @retval VERR_UNSUPPORTED_CPU if not identifiable as a processor with
|
---|
4449 | * readable microcode rev.
|
---|
4450 | *
|
---|
4451 | * @param pSession The session handle.
|
---|
4452 | * @param puRevision Where to store the microcode revision.
|
---|
4453 | */
|
---|
4454 | SUPR0DECL(int) SUPR0QueryUcodeRev(PSUPDRVSESSION pSession, uint32_t *puRevision)
|
---|
4455 | {
|
---|
4456 | /*
|
---|
4457 | * Input validation.
|
---|
4458 | */
|
---|
4459 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4460 | AssertPtrReturn(puRevision, VERR_INVALID_POINTER);
|
---|
4461 |
|
---|
4462 | /*
|
---|
4463 | * Call common worker.
|
---|
4464 | */
|
---|
4465 | return supdrvQueryUcodeRev(puRevision);
|
---|
4466 | }
|
---|
4467 |
|
---|
4468 |
|
---|
4469 | /**
|
---|
4470 | * Register a component factory with the support driver.
|
---|
4471 | *
|
---|
4472 | * This is currently restricted to kernel sessions only.
|
---|
4473 | *
|
---|
4474 | * @returns VBox status code.
|
---|
4475 | * @retval VINF_SUCCESS on success.
|
---|
4476 | * @retval VERR_NO_MEMORY if we're out of memory.
|
---|
4477 | * @retval VERR_ALREADY_EXISTS if the factory has already been registered.
|
---|
4478 | * @retval VERR_ACCESS_DENIED if it isn't a kernel session.
|
---|
4479 | * @retval VERR_INVALID_PARAMETER on invalid parameter.
|
---|
4480 | * @retval VERR_INVALID_POINTER on invalid pointer parameter.
|
---|
4481 | *
|
---|
4482 | * @param pSession The SUPDRV session (must be a ring-0 session).
|
---|
4483 | * @param pFactory Pointer to the component factory registration structure.
|
---|
4484 | *
|
---|
4485 | * @remarks This interface is also available via SUPR0IdcComponentRegisterFactory.
|
---|
4486 | */
|
---|
4487 | SUPR0DECL(int) SUPR0ComponentRegisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory)
|
---|
4488 | {
|
---|
4489 | PSUPDRVFACTORYREG pNewReg;
|
---|
4490 | const char *psz;
|
---|
4491 | int rc;
|
---|
4492 |
|
---|
4493 | /*
|
---|
4494 | * Validate parameters.
|
---|
4495 | */
|
---|
4496 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4497 | AssertReturn(pSession->R0Process == NIL_RTR0PROCESS, VERR_ACCESS_DENIED);
|
---|
4498 | AssertPtrReturn(pFactory, VERR_INVALID_POINTER);
|
---|
4499 | AssertPtrReturn(pFactory->pfnQueryFactoryInterface, VERR_INVALID_POINTER);
|
---|
4500 | psz = RTStrEnd(pFactory->szName, sizeof(pFactory->szName));
|
---|
4501 | AssertReturn(psz, VERR_INVALID_PARAMETER);
|
---|
4502 |
|
---|
4503 | /*
|
---|
4504 | * Allocate and initialize a new registration structure.
|
---|
4505 | */
|
---|
4506 | pNewReg = (PSUPDRVFACTORYREG)RTMemAlloc(sizeof(SUPDRVFACTORYREG));
|
---|
4507 | if (pNewReg)
|
---|
4508 | {
|
---|
4509 | pNewReg->pNext = NULL;
|
---|
4510 | pNewReg->pFactory = pFactory;
|
---|
4511 | pNewReg->pSession = pSession;
|
---|
4512 | pNewReg->cchName = psz - &pFactory->szName[0];
|
---|
4513 |
|
---|
4514 | /*
|
---|
4515 | * Add it to the tail of the list after checking for prior registration.
|
---|
4516 | */
|
---|
4517 | rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
|
---|
4518 | if (RT_SUCCESS(rc))
|
---|
4519 | {
|
---|
4520 | PSUPDRVFACTORYREG pPrev = NULL;
|
---|
4521 | PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
|
---|
4522 | while (pCur && pCur->pFactory != pFactory)
|
---|
4523 | {
|
---|
4524 | pPrev = pCur;
|
---|
4525 | pCur = pCur->pNext;
|
---|
4526 | }
|
---|
4527 | if (!pCur)
|
---|
4528 | {
|
---|
4529 | if (pPrev)
|
---|
4530 | pPrev->pNext = pNewReg;
|
---|
4531 | else
|
---|
4532 | pSession->pDevExt->pComponentFactoryHead = pNewReg;
|
---|
4533 | rc = VINF_SUCCESS;
|
---|
4534 | }
|
---|
4535 | else
|
---|
4536 | rc = VERR_ALREADY_EXISTS;
|
---|
4537 |
|
---|
4538 | RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
|
---|
4539 | }
|
---|
4540 |
|
---|
4541 | if (RT_FAILURE(rc))
|
---|
4542 | RTMemFree(pNewReg);
|
---|
4543 | }
|
---|
4544 | else
|
---|
4545 | rc = VERR_NO_MEMORY;
|
---|
4546 | return rc;
|
---|
4547 | }
|
---|
4548 |
|
---|
4549 |
|
---|
4550 | /**
|
---|
4551 | * Deregister a component factory.
|
---|
4552 | *
|
---|
4553 | * @returns VBox status code.
|
---|
4554 | * @retval VINF_SUCCESS on success.
|
---|
4555 | * @retval VERR_NOT_FOUND if the factory wasn't registered.
|
---|
4556 | * @retval VERR_ACCESS_DENIED if it isn't a kernel session.
|
---|
4557 | * @retval VERR_INVALID_PARAMETER on invalid parameter.
|
---|
4558 | * @retval VERR_INVALID_POINTER on invalid pointer parameter.
|
---|
4559 | *
|
---|
4560 | * @param pSession The SUPDRV session (must be a ring-0 session).
|
---|
4561 | * @param pFactory Pointer to the component factory registration structure
|
---|
4562 | * previously passed SUPR0ComponentRegisterFactory().
|
---|
4563 | *
|
---|
4564 | * @remarks This interface is also available via SUPR0IdcComponentDeregisterFactory.
|
---|
4565 | */
|
---|
4566 | SUPR0DECL(int) SUPR0ComponentDeregisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory)
|
---|
4567 | {
|
---|
4568 | int rc;
|
---|
4569 |
|
---|
4570 | /*
|
---|
4571 | * Validate parameters.
|
---|
4572 | */
|
---|
4573 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4574 | AssertReturn(pSession->R0Process == NIL_RTR0PROCESS, VERR_ACCESS_DENIED);
|
---|
4575 | AssertPtrReturn(pFactory, VERR_INVALID_POINTER);
|
---|
4576 |
|
---|
4577 | /*
|
---|
4578 | * Take the lock and look for the registration record.
|
---|
4579 | */
|
---|
4580 | rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
|
---|
4581 | if (RT_SUCCESS(rc))
|
---|
4582 | {
|
---|
4583 | PSUPDRVFACTORYREG pPrev = NULL;
|
---|
4584 | PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
|
---|
4585 | while (pCur && pCur->pFactory != pFactory)
|
---|
4586 | {
|
---|
4587 | pPrev = pCur;
|
---|
4588 | pCur = pCur->pNext;
|
---|
4589 | }
|
---|
4590 | if (pCur)
|
---|
4591 | {
|
---|
4592 | if (!pPrev)
|
---|
4593 | pSession->pDevExt->pComponentFactoryHead = pCur->pNext;
|
---|
4594 | else
|
---|
4595 | pPrev->pNext = pCur->pNext;
|
---|
4596 |
|
---|
4597 | pCur->pNext = NULL;
|
---|
4598 | pCur->pFactory = NULL;
|
---|
4599 | pCur->pSession = NULL;
|
---|
4600 | rc = VINF_SUCCESS;
|
---|
4601 | }
|
---|
4602 | else
|
---|
4603 | rc = VERR_NOT_FOUND;
|
---|
4604 |
|
---|
4605 | RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
|
---|
4606 |
|
---|
4607 | RTMemFree(pCur);
|
---|
4608 | }
|
---|
4609 | return rc;
|
---|
4610 | }
|
---|
4611 |
|
---|
4612 |
|
---|
4613 | /**
|
---|
4614 | * Queries a component factory.
|
---|
4615 | *
|
---|
4616 | * @returns VBox status code.
|
---|
4617 | * @retval VERR_INVALID_PARAMETER on invalid parameter.
|
---|
4618 | * @retval VERR_INVALID_POINTER on invalid pointer parameter.
|
---|
4619 | * @retval VERR_SUPDRV_COMPONENT_NOT_FOUND if the component factory wasn't found.
|
---|
4620 | * @retval VERR_SUPDRV_INTERFACE_NOT_SUPPORTED if the interface wasn't supported.
|
---|
4621 | *
|
---|
4622 | * @param pSession The SUPDRV session.
|
---|
4623 | * @param pszName The name of the component factory.
|
---|
4624 | * @param pszInterfaceUuid The UUID of the factory interface (stringified).
|
---|
4625 | * @param ppvFactoryIf Where to store the factory interface.
|
---|
4626 | */
|
---|
4627 | SUPR0DECL(int) SUPR0ComponentQueryFactory(PSUPDRVSESSION pSession, const char *pszName, const char *pszInterfaceUuid, void **ppvFactoryIf)
|
---|
4628 | {
|
---|
4629 | const char *pszEnd;
|
---|
4630 | size_t cchName;
|
---|
4631 | int rc;
|
---|
4632 |
|
---|
4633 | /*
|
---|
4634 | * Validate parameters.
|
---|
4635 | */
|
---|
4636 | AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
|
---|
4637 |
|
---|
4638 | AssertPtrReturn(pszName, VERR_INVALID_POINTER);
|
---|
4639 | pszEnd = RTStrEnd(pszName, RT_SIZEOFMEMB(SUPDRVFACTORY, szName));
|
---|
4640 | AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
|
---|
4641 | cchName = pszEnd - pszName;
|
---|
4642 |
|
---|
4643 | AssertPtrReturn(pszInterfaceUuid, VERR_INVALID_POINTER);
|
---|
4644 | pszEnd = RTStrEnd(pszInterfaceUuid, RTUUID_STR_LENGTH);
|
---|
4645 | AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
|
---|
4646 |
|
---|
4647 | AssertPtrReturn(ppvFactoryIf, VERR_INVALID_POINTER);
|
---|
4648 | *ppvFactoryIf = NULL;
|
---|
4649 |
|
---|
4650 | /*
|
---|
4651 | * Take the lock and try all factories by this name.
|
---|
4652 | */
|
---|
4653 | rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
|
---|
4654 | if (RT_SUCCESS(rc))
|
---|
4655 | {
|
---|
4656 | PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
|
---|
4657 | rc = VERR_SUPDRV_COMPONENT_NOT_FOUND;
|
---|
4658 | while (pCur)
|
---|
4659 | {
|
---|
4660 | if ( pCur->cchName == cchName
|
---|
4661 | && !memcmp(pCur->pFactory->szName, pszName, cchName))
|
---|
4662 | {
|
---|
4663 | void *pvFactory = pCur->pFactory->pfnQueryFactoryInterface(pCur->pFactory, pSession, pszInterfaceUuid);
|
---|
4664 | if (pvFactory)
|
---|
4665 | {
|
---|
4666 | *ppvFactoryIf = pvFactory;
|
---|
4667 | rc = VINF_SUCCESS;
|
---|
4668 | break;
|
---|
4669 | }
|
---|
4670 | rc = VERR_SUPDRV_INTERFACE_NOT_SUPPORTED;
|
---|
4671 | }
|
---|
4672 |
|
---|
4673 | /* next */
|
---|
4674 | pCur = pCur->pNext;
|
---|
4675 | }
|
---|
4676 |
|
---|
4677 | RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
|
---|
4678 | }
|
---|
4679 | return rc;
|
---|
4680 | }
|
---|
4681 |
|
---|
4682 |
|
---|
4683 | /**
|
---|
4684 | * Adds a memory object to the session.
|
---|
4685 | *
|
---|
4686 | * @returns IPRT status code.
|
---|
4687 | * @param pMem Memory tracking structure containing the
|
---|
4688 | * information to track.
|
---|
4689 | * @param pSession The session.
|
---|
4690 | */
|
---|
4691 | static int supdrvMemAdd(PSUPDRVMEMREF pMem, PSUPDRVSESSION pSession)
|
---|
4692 | {
|
---|
4693 | PSUPDRVBUNDLE pBundle;
|
---|
4694 |
|
---|
4695 | /*
|
---|
4696 | * Find free entry and record the allocation.
|
---|
4697 | */
|
---|
4698 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
4699 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
4700 | {
|
---|
4701 | if (pBundle->cUsed < RT_ELEMENTS(pBundle->aMem))
|
---|
4702 | {
|
---|
4703 | unsigned i;
|
---|
4704 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
4705 | {
|
---|
4706 | if (pBundle->aMem[i].MemObj == NIL_RTR0MEMOBJ)
|
---|
4707 | {
|
---|
4708 | pBundle->cUsed++;
|
---|
4709 | pBundle->aMem[i] = *pMem;
|
---|
4710 | RTSpinlockRelease(pSession->Spinlock);
|
---|
4711 | return VINF_SUCCESS;
|
---|
4712 | }
|
---|
4713 | }
|
---|
4714 | AssertFailed(); /* !!this can't be happening!!! */
|
---|
4715 | }
|
---|
4716 | }
|
---|
4717 | RTSpinlockRelease(pSession->Spinlock);
|
---|
4718 |
|
---|
4719 | /*
|
---|
4720 | * Need to allocate a new bundle.
|
---|
4721 | * Insert into the last entry in the bundle.
|
---|
4722 | */
|
---|
4723 | pBundle = (PSUPDRVBUNDLE)RTMemAllocZ(sizeof(*pBundle));
|
---|
4724 | if (!pBundle)
|
---|
4725 | return VERR_NO_MEMORY;
|
---|
4726 |
|
---|
4727 | /* take last entry. */
|
---|
4728 | pBundle->cUsed++;
|
---|
4729 | pBundle->aMem[RT_ELEMENTS(pBundle->aMem) - 1] = *pMem;
|
---|
4730 |
|
---|
4731 | /* insert into list. */
|
---|
4732 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
4733 | pBundle->pNext = pSession->Bundle.pNext;
|
---|
4734 | pSession->Bundle.pNext = pBundle;
|
---|
4735 | RTSpinlockRelease(pSession->Spinlock);
|
---|
4736 |
|
---|
4737 | return VINF_SUCCESS;
|
---|
4738 | }
|
---|
4739 |
|
---|
4740 |
|
---|
4741 | /**
|
---|
4742 | * Releases a memory object referenced by pointer and type.
|
---|
4743 | *
|
---|
4744 | * @returns IPRT status code.
|
---|
4745 | * @param pSession Session data.
|
---|
4746 | * @param uPtr Pointer to memory. This is matched against both the R0 and R3 addresses.
|
---|
4747 | * @param eType Memory type.
|
---|
4748 | */
|
---|
4749 | static int supdrvMemRelease(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, SUPDRVMEMREFTYPE eType)
|
---|
4750 | {
|
---|
4751 | PSUPDRVBUNDLE pBundle;
|
---|
4752 |
|
---|
4753 | /*
|
---|
4754 | * Validate input.
|
---|
4755 | */
|
---|
4756 | if (!uPtr)
|
---|
4757 | {
|
---|
4758 | Log(("Illegal address %p\n", (void *)uPtr));
|
---|
4759 | return VERR_INVALID_PARAMETER;
|
---|
4760 | }
|
---|
4761 |
|
---|
4762 | /*
|
---|
4763 | * Search for the address.
|
---|
4764 | */
|
---|
4765 | RTSpinlockAcquire(pSession->Spinlock);
|
---|
4766 | for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
|
---|
4767 | {
|
---|
4768 | if (pBundle->cUsed > 0)
|
---|
4769 | {
|
---|
4770 | unsigned i;
|
---|
4771 | for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
|
---|
4772 | {
|
---|
4773 | if ( pBundle->aMem[i].eType == eType
|
---|
4774 | && pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
|
---|
4775 | && ( (RTHCUINTPTR)RTR0MemObjAddress(pBundle->aMem[i].MemObj) == uPtr
|
---|
4776 | || ( pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
|
---|
4777 | && RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == uPtr))
|
---|
4778 | )
|
---|
4779 | {
|
---|
4780 | /* Make a copy of it and release it outside the spinlock. */
|
---|
4781 | SUPDRVMEMREF Mem = pBundle->aMem[i];
|
---|
4782 | pBundle->aMem[i].eType = MEMREF_TYPE_UNUSED;
|
---|
4783 | pBundle->aMem[i].MemObj = NIL_RTR0MEMOBJ;
|
---|
4784 | pBundle->aMem[i].MapObjR3 = NIL_RTR0MEMOBJ;
|
---|
4785 | RTSpinlockRelease(pSession->Spinlock);
|
---|
4786 |
|
---|
4787 | if (Mem.MapObjR3 != NIL_RTR0MEMOBJ)
|
---|
4788 | {
|
---|
4789 | int rc = RTR0MemObjFree(Mem.MapObjR3, false);
|
---|
4790 | AssertRC(rc); /** @todo figure out how to handle this. */
|
---|
4791 | }
|
---|
4792 | if (Mem.MemObj != NIL_RTR0MEMOBJ)
|
---|
4793 | {
|
---|
4794 | int rc = RTR0MemObjFree(Mem.MemObj, true /* fFreeMappings */);
|
---|
4795 | AssertRC(rc); /** @todo figure out how to handle this. */
|
---|
4796 | }
|
---|
4797 | return VINF_SUCCESS;
|
---|
4798 | }
|
---|
4799 | }
|
---|
4800 | }
|
---|
4801 | }
|
---|
4802 | RTSpinlockRelease(pSession->Spinlock);
|
---|
4803 | Log(("Failed to find %p!!! (eType=%d)\n", (void *)uPtr, eType));
|
---|
4804 | return VERR_INVALID_PARAMETER;
|
---|
4805 | }
|
---|
4806 |
|
---|
4807 |
|
---|
4808 | /**
|
---|
4809 | * Opens an image. If it's the first time it's opened the call must upload
|
---|
4810 | * the bits using the supdrvIOCtl_LdrLoad() / SUPDRV_IOCTL_LDR_LOAD function.
|
---|
4811 | *
|
---|
4812 | * This is the 1st step of the loading.
|
---|
4813 | *
|
---|
4814 | * @returns IPRT status code.
|
---|
4815 | * @param pDevExt Device globals.
|
---|
4816 | * @param pSession Session data.
|
---|
4817 | * @param pReq The open request.
|
---|
4818 | */
|
---|
4819 | static int supdrvIOCtl_LdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDROPEN pReq)
|
---|
4820 | {
|
---|
4821 | int rc;
|
---|
4822 | PSUPDRVLDRIMAGE pImage;
|
---|
4823 | void *pv;
|
---|
4824 | size_t cchName = strlen(pReq->u.In.szName); /* (caller checked < 32). */
|
---|
4825 | SUPDRV_CHECK_SMAP_SETUP();
|
---|
4826 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
4827 | LogFlow(("supdrvIOCtl_LdrOpen: szName=%s cbImageWithTabs=%d\n", pReq->u.In.szName, pReq->u.In.cbImageWithTabs));
|
---|
4828 |
|
---|
4829 | /*
|
---|
4830 | * Check if we got an instance of the image already.
|
---|
4831 | */
|
---|
4832 | supdrvLdrLock(pDevExt);
|
---|
4833 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
4834 | for (pImage = pDevExt->pLdrImages; pImage; pImage = pImage->pNext)
|
---|
4835 | {
|
---|
4836 | if ( pImage->szName[cchName] == '\0'
|
---|
4837 | && !memcmp(pImage->szName, pReq->u.In.szName, cchName))
|
---|
4838 | {
|
---|
4839 | if (RT_LIKELY(pImage->cUsage < UINT32_MAX / 2U))
|
---|
4840 | {
|
---|
4841 | /** @todo check cbImageBits and cbImageWithTabs here, if they differs that indicates that the images are different. */
|
---|
4842 | pImage->cUsage++;
|
---|
4843 | pReq->u.Out.pvImageBase = pImage->pvImage;
|
---|
4844 | pReq->u.Out.fNeedsLoading = pImage->uState == SUP_IOCTL_LDR_OPEN;
|
---|
4845 | pReq->u.Out.fNativeLoader = pImage->fNative;
|
---|
4846 | supdrvLdrAddUsage(pSession, pImage);
|
---|
4847 | supdrvLdrUnlock(pDevExt);
|
---|
4848 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
4849 | return VINF_SUCCESS;
|
---|
4850 | }
|
---|
4851 | supdrvLdrUnlock(pDevExt);
|
---|
4852 | Log(("supdrvIOCtl_LdrOpen: To many existing references to '%s'!\n", pReq->u.In.szName));
|
---|
4853 | return VERR_INTERNAL_ERROR_3; /** @todo add VERR_TOO_MANY_REFERENCES */
|
---|
4854 | }
|
---|
4855 | }
|
---|
4856 | /* (not found - add it!) */
|
---|
4857 |
|
---|
4858 | /* If the loader interface is locked down, make userland fail early */
|
---|
4859 | if (pDevExt->fLdrLockedDown)
|
---|
4860 | {
|
---|
4861 | supdrvLdrUnlock(pDevExt);
|
---|
4862 | Log(("supdrvIOCtl_LdrOpen: Not adding '%s' to image list, loader interface is locked down!\n", pReq->u.In.szName));
|
---|
4863 | return VERR_PERMISSION_DENIED;
|
---|
4864 | }
|
---|
4865 |
|
---|
4866 | /*
|
---|
4867 | * Allocate memory.
|
---|
4868 | */
|
---|
4869 | Assert(cchName < sizeof(pImage->szName));
|
---|
4870 | pv = RTMemAlloc(sizeof(SUPDRVLDRIMAGE));
|
---|
4871 | if (!pv)
|
---|
4872 | {
|
---|
4873 | supdrvLdrUnlock(pDevExt);
|
---|
4874 | Log(("supdrvIOCtl_LdrOpen: RTMemAlloc() failed\n"));
|
---|
4875 | return /*VERR_NO_MEMORY*/ VERR_INTERNAL_ERROR_2;
|
---|
4876 | }
|
---|
4877 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
4878 |
|
---|
4879 | /*
|
---|
4880 | * Setup and link in the LDR stuff.
|
---|
4881 | */
|
---|
4882 | pImage = (PSUPDRVLDRIMAGE)pv;
|
---|
4883 | pImage->pvImage = NULL;
|
---|
4884 | pImage->pvImageAlloc = NULL;
|
---|
4885 | pImage->cbImageWithTabs = pReq->u.In.cbImageWithTabs;
|
---|
4886 | pImage->cbImageBits = pReq->u.In.cbImageBits;
|
---|
4887 | pImage->cSymbols = 0;
|
---|
4888 | pImage->paSymbols = NULL;
|
---|
4889 | pImage->pachStrTab = NULL;
|
---|
4890 | pImage->cbStrTab = 0;
|
---|
4891 | pImage->pfnModuleInit = NULL;
|
---|
4892 | pImage->pfnModuleTerm = NULL;
|
---|
4893 | pImage->pfnServiceReqHandler = NULL;
|
---|
4894 | pImage->uState = SUP_IOCTL_LDR_OPEN;
|
---|
4895 | pImage->cUsage = 1;
|
---|
4896 | pImage->pDevExt = pDevExt;
|
---|
4897 | memcpy(pImage->szName, pReq->u.In.szName, cchName + 1);
|
---|
4898 |
|
---|
4899 | /*
|
---|
4900 | * Try load it using the native loader, if that isn't supported, fall back
|
---|
4901 | * on the older method.
|
---|
4902 | */
|
---|
4903 | pImage->fNative = true;
|
---|
4904 | rc = supdrvOSLdrOpen(pDevExt, pImage, pReq->u.In.szFilename);
|
---|
4905 | if (rc == VERR_NOT_SUPPORTED)
|
---|
4906 | {
|
---|
4907 | pImage->pvImageAlloc = RTMemExecAlloc(pImage->cbImageBits + 31);
|
---|
4908 | pImage->pvImage = RT_ALIGN_P(pImage->pvImageAlloc, 32);
|
---|
4909 | pImage->fNative = false;
|
---|
4910 | rc = pImage->pvImageAlloc ? VINF_SUCCESS : VERR_NO_EXEC_MEMORY;
|
---|
4911 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
4912 | }
|
---|
4913 | if (RT_FAILURE(rc))
|
---|
4914 | {
|
---|
4915 | supdrvLdrUnlock(pDevExt);
|
---|
4916 | RTMemFree(pImage);
|
---|
4917 | Log(("supdrvIOCtl_LdrOpen(%s): failed - %Rrc\n", pReq->u.In.szName, rc));
|
---|
4918 | return rc;
|
---|
4919 | }
|
---|
4920 | Assert(VALID_PTR(pImage->pvImage) || RT_FAILURE(rc));
|
---|
4921 |
|
---|
4922 | /*
|
---|
4923 | * Link it.
|
---|
4924 | */
|
---|
4925 | pImage->pNext = pDevExt->pLdrImages;
|
---|
4926 | pDevExt->pLdrImages = pImage;
|
---|
4927 |
|
---|
4928 | supdrvLdrAddUsage(pSession, pImage);
|
---|
4929 |
|
---|
4930 | pReq->u.Out.pvImageBase = pImage->pvImage;
|
---|
4931 | pReq->u.Out.fNeedsLoading = true;
|
---|
4932 | pReq->u.Out.fNativeLoader = pImage->fNative;
|
---|
4933 | supdrvOSLdrNotifyOpened(pDevExt, pImage, pReq->u.In.szFilename);
|
---|
4934 |
|
---|
4935 | supdrvLdrUnlock(pDevExt);
|
---|
4936 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
4937 | return VINF_SUCCESS;
|
---|
4938 | }
|
---|
4939 |
|
---|
4940 |
|
---|
4941 | /**
|
---|
4942 | * Worker that validates a pointer to an image entrypoint.
|
---|
4943 | *
|
---|
4944 | * @returns IPRT status code.
|
---|
4945 | * @param pDevExt The device globals.
|
---|
4946 | * @param pImage The loader image.
|
---|
4947 | * @param pv The pointer into the image.
|
---|
4948 | * @param fMayBeNull Whether it may be NULL.
|
---|
4949 | * @param pszWhat What is this entrypoint? (for logging)
|
---|
4950 | * @param pbImageBits The image bits prepared by ring-3.
|
---|
4951 | *
|
---|
4952 | * @remarks Will leave the lock on failure.
|
---|
4953 | */
|
---|
4954 | static int supdrvLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, void *pv,
|
---|
4955 | bool fMayBeNull, const uint8_t *pbImageBits, const char *pszWhat)
|
---|
4956 | {
|
---|
4957 | if (!fMayBeNull || pv)
|
---|
4958 | {
|
---|
4959 | if ((uintptr_t)pv - (uintptr_t)pImage->pvImage >= pImage->cbImageBits)
|
---|
4960 | {
|
---|
4961 | supdrvLdrUnlock(pDevExt);
|
---|
4962 | Log(("Out of range (%p LB %#x): %s=%p\n", pImage->pvImage, pImage->cbImageBits, pszWhat, pv));
|
---|
4963 | return VERR_INVALID_PARAMETER;
|
---|
4964 | }
|
---|
4965 |
|
---|
4966 | if (pImage->fNative)
|
---|
4967 | {
|
---|
4968 | int rc = supdrvOSLdrValidatePointer(pDevExt, pImage, pv, pbImageBits);
|
---|
4969 | if (RT_FAILURE(rc))
|
---|
4970 | {
|
---|
4971 | supdrvLdrUnlock(pDevExt);
|
---|
4972 | Log(("Bad entry point address: %s=%p (rc=%Rrc)\n", pszWhat, pv, rc)); NOREF(pszWhat);
|
---|
4973 | return rc;
|
---|
4974 | }
|
---|
4975 | }
|
---|
4976 | }
|
---|
4977 | return VINF_SUCCESS;
|
---|
4978 | }
|
---|
4979 |
|
---|
4980 |
|
---|
4981 | /**
|
---|
4982 | * Formats a load error message.
|
---|
4983 | *
|
---|
4984 | * @returns @a rc
|
---|
4985 | * @param rc Return code.
|
---|
4986 | * @param pReq The request.
|
---|
4987 | * @param pszFormat The error message format string.
|
---|
4988 | * @param ... Argument to the format string.
|
---|
4989 | */
|
---|
4990 | int VBOXCALL supdrvLdrLoadError(int rc, PSUPLDRLOAD pReq, const char *pszFormat, ...)
|
---|
4991 | {
|
---|
4992 | va_list va;
|
---|
4993 | va_start(va, pszFormat);
|
---|
4994 | pReq->u.Out.uErrorMagic = SUPLDRLOAD_ERROR_MAGIC;
|
---|
4995 | RTStrPrintfV(pReq->u.Out.szError, sizeof(pReq->u.Out.szError), pszFormat, va);
|
---|
4996 | va_end(va);
|
---|
4997 | Log(("SUP_IOCTL_LDR_LOAD: %s [rc=%Rrc]\n", pReq->u.Out.szError, rc));
|
---|
4998 | return rc;
|
---|
4999 | }
|
---|
5000 |
|
---|
5001 |
|
---|
5002 | /**
|
---|
5003 | * Loads the image bits.
|
---|
5004 | *
|
---|
5005 | * This is the 2nd step of the loading.
|
---|
5006 | *
|
---|
5007 | * @returns IPRT status code.
|
---|
5008 | * @param pDevExt Device globals.
|
---|
5009 | * @param pSession Session data.
|
---|
5010 | * @param pReq The request.
|
---|
5011 | */
|
---|
5012 | static int supdrvIOCtl_LdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRLOAD pReq)
|
---|
5013 | {
|
---|
5014 | PSUPDRVLDRUSAGE pUsage;
|
---|
5015 | PSUPDRVLDRIMAGE pImage;
|
---|
5016 | int rc;
|
---|
5017 | SUPDRV_CHECK_SMAP_SETUP();
|
---|
5018 | LogFlow(("supdrvIOCtl_LdrLoad: pvImageBase=%p cbImageWithBits=%d\n", pReq->u.In.pvImageBase, pReq->u.In.cbImageWithTabs));
|
---|
5019 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5020 |
|
---|
5021 | /*
|
---|
5022 | * Find the ldr image.
|
---|
5023 | */
|
---|
5024 | supdrvLdrLock(pDevExt);
|
---|
5025 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5026 |
|
---|
5027 | pUsage = pSession->pLdrUsage;
|
---|
5028 | while (pUsage && pUsage->pImage->pvImage != pReq->u.In.pvImageBase)
|
---|
5029 | pUsage = pUsage->pNext;
|
---|
5030 | if (!pUsage)
|
---|
5031 | {
|
---|
5032 | supdrvLdrUnlock(pDevExt);
|
---|
5033 | return supdrvLdrLoadError(VERR_INVALID_HANDLE, pReq, "Image not found");
|
---|
5034 | }
|
---|
5035 | pImage = pUsage->pImage;
|
---|
5036 |
|
---|
5037 | /*
|
---|
5038 | * Validate input.
|
---|
5039 | */
|
---|
5040 | if ( pImage->cbImageWithTabs != pReq->u.In.cbImageWithTabs
|
---|
5041 | || pImage->cbImageBits != pReq->u.In.cbImageBits)
|
---|
5042 | {
|
---|
5043 | supdrvLdrUnlock(pDevExt);
|
---|
5044 | return supdrvLdrLoadError(VERR_INVALID_HANDLE, pReq, "Image size mismatch found: %d(prep) != %d(load) or %d != %d",
|
---|
5045 | pImage->cbImageWithTabs, pReq->u.In.cbImageWithTabs, pImage->cbImageBits, pReq->u.In.cbImageBits);
|
---|
5046 | }
|
---|
5047 |
|
---|
5048 | if (pImage->uState != SUP_IOCTL_LDR_OPEN)
|
---|
5049 | {
|
---|
5050 | unsigned uState = pImage->uState;
|
---|
5051 | supdrvLdrUnlock(pDevExt);
|
---|
5052 | if (uState != SUP_IOCTL_LDR_LOAD)
|
---|
5053 | AssertMsgFailed(("SUP_IOCTL_LDR_LOAD: invalid image state %d (%#x)!\n", uState, uState));
|
---|
5054 | pReq->u.Out.uErrorMagic = 0;
|
---|
5055 | return VERR_ALREADY_LOADED;
|
---|
5056 | }
|
---|
5057 |
|
---|
5058 | /* If the loader interface is locked down, don't load new images */
|
---|
5059 | if (pDevExt->fLdrLockedDown)
|
---|
5060 | {
|
---|
5061 | supdrvLdrUnlock(pDevExt);
|
---|
5062 | return supdrvLdrLoadError(VERR_PERMISSION_DENIED, pReq, "Loader is locked down");
|
---|
5063 | }
|
---|
5064 |
|
---|
5065 | switch (pReq->u.In.eEPType)
|
---|
5066 | {
|
---|
5067 | case SUPLDRLOADEP_NOTHING:
|
---|
5068 | break;
|
---|
5069 |
|
---|
5070 | case SUPLDRLOADEP_VMMR0:
|
---|
5071 | rc = supdrvLdrValidatePointer( pDevExt, pImage, pReq->u.In.EP.VMMR0.pvVMMR0, false, pReq->u.In.abImage, "pvVMMR0");
|
---|
5072 | if (RT_SUCCESS(rc))
|
---|
5073 | rc = supdrvLdrValidatePointer(pDevExt, pImage, pReq->u.In.EP.VMMR0.pvVMMR0EntryFast, false, pReq->u.In.abImage, "pvVMMR0EntryFast");
|
---|
5074 | if (RT_SUCCESS(rc))
|
---|
5075 | rc = supdrvLdrValidatePointer(pDevExt, pImage, pReq->u.In.EP.VMMR0.pvVMMR0EntryEx, false, pReq->u.In.abImage, "pvVMMR0EntryEx");
|
---|
5076 | if (RT_FAILURE(rc))
|
---|
5077 | return supdrvLdrLoadError(rc, pReq, "Invalid VMMR0 pointer");
|
---|
5078 | break;
|
---|
5079 |
|
---|
5080 | case SUPLDRLOADEP_SERVICE:
|
---|
5081 | rc = supdrvLdrValidatePointer(pDevExt, pImage, pReq->u.In.EP.Service.pfnServiceReq, false, pReq->u.In.abImage, "pfnServiceReq");
|
---|
5082 | if (RT_FAILURE(rc))
|
---|
5083 | return supdrvLdrLoadError(rc, pReq, "Invalid pfnServiceReq pointer: %p", pReq->u.In.EP.Service.pfnServiceReq);
|
---|
5084 | if ( pReq->u.In.EP.Service.apvReserved[0] != NIL_RTR0PTR
|
---|
5085 | || pReq->u.In.EP.Service.apvReserved[1] != NIL_RTR0PTR
|
---|
5086 | || pReq->u.In.EP.Service.apvReserved[2] != NIL_RTR0PTR)
|
---|
5087 | {
|
---|
5088 | supdrvLdrUnlock(pDevExt);
|
---|
5089 | return supdrvLdrLoadError(VERR_INVALID_PARAMETER, pReq,
|
---|
5090 | "Out of range (%p LB %#x): apvReserved={%p,%p,%p} MBZ!",
|
---|
5091 | pImage->pvImage, pReq->u.In.cbImageWithTabs,
|
---|
5092 | pReq->u.In.EP.Service.apvReserved[0],
|
---|
5093 | pReq->u.In.EP.Service.apvReserved[1],
|
---|
5094 | pReq->u.In.EP.Service.apvReserved[2]);
|
---|
5095 | }
|
---|
5096 | break;
|
---|
5097 |
|
---|
5098 | default:
|
---|
5099 | supdrvLdrUnlock(pDevExt);
|
---|
5100 | return supdrvLdrLoadError(VERR_INVALID_PARAMETER, pReq, "Invalid eEPType=%d", pReq->u.In.eEPType);
|
---|
5101 | }
|
---|
5102 |
|
---|
5103 | rc = supdrvLdrValidatePointer(pDevExt, pImage, pReq->u.In.pfnModuleInit, true, pReq->u.In.abImage, "pfnModuleInit");
|
---|
5104 | if (RT_FAILURE(rc))
|
---|
5105 | return supdrvLdrLoadError(rc, pReq, "Invalid pfnModuleInit pointer: %p", pReq->u.In.pfnModuleInit);
|
---|
5106 | rc = supdrvLdrValidatePointer(pDevExt, pImage, pReq->u.In.pfnModuleTerm, true, pReq->u.In.abImage, "pfnModuleTerm");
|
---|
5107 | if (RT_FAILURE(rc))
|
---|
5108 | return supdrvLdrLoadError(rc, pReq, "Invalid pfnModuleTerm pointer: %p", pReq->u.In.pfnModuleTerm);
|
---|
5109 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5110 |
|
---|
5111 | /*
|
---|
5112 | * Allocate and copy the tables.
|
---|
5113 | * (No need to do try/except as this is a buffered request.)
|
---|
5114 | */
|
---|
5115 | pImage->cbStrTab = pReq->u.In.cbStrTab;
|
---|
5116 | if (pImage->cbStrTab)
|
---|
5117 | {
|
---|
5118 | pImage->pachStrTab = (char *)RTMemAlloc(pImage->cbStrTab);
|
---|
5119 | if (pImage->pachStrTab)
|
---|
5120 | memcpy(pImage->pachStrTab, &pReq->u.In.abImage[pReq->u.In.offStrTab], pImage->cbStrTab);
|
---|
5121 | else
|
---|
5122 | rc = supdrvLdrLoadError(VERR_NO_MEMORY, pReq, "Out of memory for string table: %#x", pImage->cbStrTab);
|
---|
5123 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5124 | }
|
---|
5125 |
|
---|
5126 | pImage->cSymbols = pReq->u.In.cSymbols;
|
---|
5127 | if (RT_SUCCESS(rc) && pImage->cSymbols)
|
---|
5128 | {
|
---|
5129 | size_t cbSymbols = pImage->cSymbols * sizeof(SUPLDRSYM);
|
---|
5130 | pImage->paSymbols = (PSUPLDRSYM)RTMemAlloc(cbSymbols);
|
---|
5131 | if (pImage->paSymbols)
|
---|
5132 | memcpy(pImage->paSymbols, &pReq->u.In.abImage[pReq->u.In.offSymbols], cbSymbols);
|
---|
5133 | else
|
---|
5134 | rc = supdrvLdrLoadError(VERR_NO_MEMORY, pReq, "Out of memory for symbol table: %#x", cbSymbols);
|
---|
5135 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5136 | }
|
---|
5137 |
|
---|
5138 | /*
|
---|
5139 | * Copy the bits / complete native loading.
|
---|
5140 | */
|
---|
5141 | if (RT_SUCCESS(rc))
|
---|
5142 | {
|
---|
5143 | pImage->uState = SUP_IOCTL_LDR_LOAD;
|
---|
5144 | pImage->pfnModuleInit = (PFNR0MODULEINIT)(uintptr_t)pReq->u.In.pfnModuleInit;
|
---|
5145 | pImage->pfnModuleTerm = (PFNR0MODULETERM)(uintptr_t)pReq->u.In.pfnModuleTerm;
|
---|
5146 |
|
---|
5147 | if (pImage->fNative)
|
---|
5148 | rc = supdrvOSLdrLoad(pDevExt, pImage, pReq->u.In.abImage, pReq);
|
---|
5149 | else
|
---|
5150 | {
|
---|
5151 | memcpy(pImage->pvImage, &pReq->u.In.abImage[0], pImage->cbImageBits);
|
---|
5152 | Log(("vboxdrv: Loaded '%s' at %p\n", pImage->szName, pImage->pvImage));
|
---|
5153 | }
|
---|
5154 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5155 | }
|
---|
5156 |
|
---|
5157 | /*
|
---|
5158 | * Update any entry points.
|
---|
5159 | */
|
---|
5160 | if (RT_SUCCESS(rc))
|
---|
5161 | {
|
---|
5162 | switch (pReq->u.In.eEPType)
|
---|
5163 | {
|
---|
5164 | default:
|
---|
5165 | case SUPLDRLOADEP_NOTHING:
|
---|
5166 | rc = VINF_SUCCESS;
|
---|
5167 | break;
|
---|
5168 | case SUPLDRLOADEP_VMMR0:
|
---|
5169 | rc = supdrvLdrSetVMMR0EPs(pDevExt, pReq->u.In.EP.VMMR0.pvVMMR0,
|
---|
5170 | pReq->u.In.EP.VMMR0.pvVMMR0EntryFast, pReq->u.In.EP.VMMR0.pvVMMR0EntryEx);
|
---|
5171 | break;
|
---|
5172 | case SUPLDRLOADEP_SERVICE:
|
---|
5173 | pImage->pfnServiceReqHandler = (PFNSUPR0SERVICEREQHANDLER)(uintptr_t)pReq->u.In.EP.Service.pfnServiceReq;
|
---|
5174 | rc = VINF_SUCCESS;
|
---|
5175 | break;
|
---|
5176 | }
|
---|
5177 | }
|
---|
5178 |
|
---|
5179 | /*
|
---|
5180 | * On success call the module initialization.
|
---|
5181 | */
|
---|
5182 | LogFlow(("supdrvIOCtl_LdrLoad: pfnModuleInit=%p\n", pImage->pfnModuleInit));
|
---|
5183 | if (RT_SUCCESS(rc) && pImage->pfnModuleInit)
|
---|
5184 | {
|
---|
5185 | Log(("supdrvIOCtl_LdrLoad: calling pfnModuleInit=%p\n", pImage->pfnModuleInit));
|
---|
5186 | pDevExt->pLdrInitImage = pImage;
|
---|
5187 | pDevExt->hLdrInitThread = RTThreadNativeSelf();
|
---|
5188 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5189 | rc = pImage->pfnModuleInit(pImage);
|
---|
5190 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5191 | pDevExt->pLdrInitImage = NULL;
|
---|
5192 | pDevExt->hLdrInitThread = NIL_RTNATIVETHREAD;
|
---|
5193 | if (RT_FAILURE(rc))
|
---|
5194 | {
|
---|
5195 | if (pDevExt->pvVMMR0 == pImage->pvImage)
|
---|
5196 | supdrvLdrUnsetVMMR0EPs(pDevExt);
|
---|
5197 | supdrvLdrLoadError(rc, pReq, "ModuleInit failed: %Rrc", rc);
|
---|
5198 | }
|
---|
5199 | }
|
---|
5200 | if (RT_SUCCESS(rc))
|
---|
5201 | {
|
---|
5202 | SUPR0Printf("vboxdrv: %RKv %s\n", pImage->pvImage, pImage->szName);
|
---|
5203 | pReq->u.Out.uErrorMagic = 0;
|
---|
5204 | pReq->u.Out.szError[0] = '\0';
|
---|
5205 | }
|
---|
5206 | else
|
---|
5207 | {
|
---|
5208 | /* Inform the tracing component in case ModuleInit registered TPs. */
|
---|
5209 | supdrvTracerModuleUnloading(pDevExt, pImage);
|
---|
5210 |
|
---|
5211 | pImage->uState = SUP_IOCTL_LDR_OPEN;
|
---|
5212 | pImage->pfnModuleInit = NULL;
|
---|
5213 | pImage->pfnModuleTerm = NULL;
|
---|
5214 | pImage->pfnServiceReqHandler= NULL;
|
---|
5215 | pImage->cbStrTab = 0;
|
---|
5216 | RTMemFree(pImage->pachStrTab);
|
---|
5217 | pImage->pachStrTab = NULL;
|
---|
5218 | RTMemFree(pImage->paSymbols);
|
---|
5219 | pImage->paSymbols = NULL;
|
---|
5220 | pImage->cSymbols = 0;
|
---|
5221 | }
|
---|
5222 |
|
---|
5223 | supdrvLdrUnlock(pDevExt);
|
---|
5224 | SUPDRV_CHECK_SMAP_CHECK(pDevExt, RT_NOTHING);
|
---|
5225 | return rc;
|
---|
5226 | }
|
---|
5227 |
|
---|
5228 |
|
---|
5229 | /**
|
---|
5230 | * Frees a previously loaded (prep'ed) image.
|
---|
5231 | *
|
---|
5232 | * @returns IPRT status code.
|
---|
5233 | * @param pDevExt Device globals.
|
---|
5234 | * @param pSession Session data.
|
---|
5235 | * @param pReq The request.
|
---|
5236 | */
|
---|
5237 | static int supdrvIOCtl_LdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRFREE pReq)
|
---|
5238 | {
|
---|
5239 | int rc;
|
---|
5240 | PSUPDRVLDRUSAGE pUsagePrev;
|
---|
5241 | PSUPDRVLDRUSAGE pUsage;
|
---|
5242 | PSUPDRVLDRIMAGE pImage;
|
---|
5243 | LogFlow(("supdrvIOCtl_LdrFree: pvImageBase=%p\n", pReq->u.In.pvImageBase));
|
---|
5244 |
|
---|
5245 | /*
|
---|
5246 | * Find the ldr image.
|
---|
5247 | */
|
---|
5248 | supdrvLdrLock(pDevExt);
|
---|
5249 | pUsagePrev = NULL;
|
---|
5250 | pUsage = pSession->pLdrUsage;
|
---|
5251 | while (pUsage && pUsage->pImage->pvImage != pReq->u.In.pvImageBase)
|
---|
5252 | {
|
---|
5253 | pUsagePrev = pUsage;
|
---|
5254 | pUsage = pUsage->pNext;
|
---|
5255 | }
|
---|
5256 | if (!pUsage)
|
---|
5257 | {
|
---|
5258 | supdrvLdrUnlock(pDevExt);
|
---|
5259 | Log(("SUP_IOCTL_LDR_FREE: couldn't find image!\n"));
|
---|
5260 | return VERR_INVALID_HANDLE;
|
---|
5261 | }
|
---|
5262 |
|
---|
5263 | /*
|
---|
5264 | * Check if we can remove anything.
|
---|
5265 | */
|
---|
5266 | rc = VINF_SUCCESS;
|
---|
5267 | pImage = pUsage->pImage;
|
---|
5268 | if (pImage->cUsage <= 1 || pUsage->cUsage <= 1)
|
---|
5269 | {
|
---|
5270 | /*
|
---|
5271 | * Check if there are any objects with destructors in the image, if
|
---|
5272 | * so leave it for the session cleanup routine so we get a chance to
|
---|
5273 | * clean things up in the right order and not leave them all dangling.
|
---|
5274 | */
|
---|
5275 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
5276 | if (pImage->cUsage <= 1)
|
---|
5277 | {
|
---|
5278 | PSUPDRVOBJ pObj;
|
---|
5279 | for (pObj = pDevExt->pObjs; pObj; pObj = pObj->pNext)
|
---|
5280 | if (RT_UNLIKELY((uintptr_t)pObj->pfnDestructor - (uintptr_t)pImage->pvImage < pImage->cbImageBits))
|
---|
5281 | {
|
---|
5282 | rc = VERR_DANGLING_OBJECTS;
|
---|
5283 | break;
|
---|
5284 | }
|
---|
5285 | }
|
---|
5286 | else
|
---|
5287 | {
|
---|
5288 | PSUPDRVUSAGE pGenUsage;
|
---|
5289 | for (pGenUsage = pSession->pUsage; pGenUsage; pGenUsage = pGenUsage->pNext)
|
---|
5290 | if (RT_UNLIKELY((uintptr_t)pGenUsage->pObj->pfnDestructor - (uintptr_t)pImage->pvImage < pImage->cbImageBits))
|
---|
5291 | {
|
---|
5292 | rc = VERR_DANGLING_OBJECTS;
|
---|
5293 | break;
|
---|
5294 | }
|
---|
5295 | }
|
---|
5296 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
5297 | if (rc == VINF_SUCCESS)
|
---|
5298 | {
|
---|
5299 | /* unlink it */
|
---|
5300 | if (pUsagePrev)
|
---|
5301 | pUsagePrev->pNext = pUsage->pNext;
|
---|
5302 | else
|
---|
5303 | pSession->pLdrUsage = pUsage->pNext;
|
---|
5304 |
|
---|
5305 | /* free it */
|
---|
5306 | pUsage->pImage = NULL;
|
---|
5307 | pUsage->pNext = NULL;
|
---|
5308 | RTMemFree(pUsage);
|
---|
5309 |
|
---|
5310 | /*
|
---|
5311 | * Dereference the image.
|
---|
5312 | */
|
---|
5313 | if (pImage->cUsage <= 1)
|
---|
5314 | supdrvLdrFree(pDevExt, pImage);
|
---|
5315 | else
|
---|
5316 | pImage->cUsage--;
|
---|
5317 | }
|
---|
5318 | else
|
---|
5319 | {
|
---|
5320 | Log(("supdrvIOCtl_LdrFree: Dangling objects in %p/%s!\n", pImage->pvImage, pImage->szName));
|
---|
5321 | rc = VINF_SUCCESS; /** @todo BRANCH-2.1: remove this after branching. */
|
---|
5322 | }
|
---|
5323 | }
|
---|
5324 | else
|
---|
5325 | {
|
---|
5326 | /*
|
---|
5327 | * Dereference both image and usage.
|
---|
5328 | */
|
---|
5329 | pImage->cUsage--;
|
---|
5330 | pUsage->cUsage--;
|
---|
5331 | }
|
---|
5332 |
|
---|
5333 | supdrvLdrUnlock(pDevExt);
|
---|
5334 | return rc;
|
---|
5335 | }
|
---|
5336 |
|
---|
5337 |
|
---|
5338 | /**
|
---|
5339 | * Lock down the image loader interface.
|
---|
5340 | *
|
---|
5341 | * @returns IPRT status code.
|
---|
5342 | * @param pDevExt Device globals.
|
---|
5343 | */
|
---|
5344 | static int supdrvIOCtl_LdrLockDown(PSUPDRVDEVEXT pDevExt)
|
---|
5345 | {
|
---|
5346 | LogFlow(("supdrvIOCtl_LdrLockDown:\n"));
|
---|
5347 |
|
---|
5348 | supdrvLdrLock(pDevExt);
|
---|
5349 | if (!pDevExt->fLdrLockedDown)
|
---|
5350 | {
|
---|
5351 | pDevExt->fLdrLockedDown = true;
|
---|
5352 | Log(("supdrvIOCtl_LdrLockDown: Image loader interface locked down\n"));
|
---|
5353 | }
|
---|
5354 | supdrvLdrUnlock(pDevExt);
|
---|
5355 |
|
---|
5356 | return VINF_SUCCESS;
|
---|
5357 | }
|
---|
5358 |
|
---|
5359 |
|
---|
5360 | /**
|
---|
5361 | * Gets the address of a symbol in an open image.
|
---|
5362 | *
|
---|
5363 | * @returns IPRT status code.
|
---|
5364 | * @param pDevExt Device globals.
|
---|
5365 | * @param pSession Session data.
|
---|
5366 | * @param pReq The request buffer.
|
---|
5367 | */
|
---|
5368 | static int supdrvIOCtl_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRGETSYMBOL pReq)
|
---|
5369 | {
|
---|
5370 | PSUPDRVLDRIMAGE pImage;
|
---|
5371 | PSUPDRVLDRUSAGE pUsage;
|
---|
5372 | uint32_t i;
|
---|
5373 | PSUPLDRSYM paSyms;
|
---|
5374 | const char *pchStrings;
|
---|
5375 | const size_t cbSymbol = strlen(pReq->u.In.szSymbol) + 1;
|
---|
5376 | void *pvSymbol = NULL;
|
---|
5377 | int rc = VERR_SYMBOL_NOT_FOUND;
|
---|
5378 | Log3(("supdrvIOCtl_LdrGetSymbol: pvImageBase=%p szSymbol=\"%s\"\n", pReq->u.In.pvImageBase, pReq->u.In.szSymbol));
|
---|
5379 |
|
---|
5380 | /*
|
---|
5381 | * Find the ldr image.
|
---|
5382 | */
|
---|
5383 | supdrvLdrLock(pDevExt);
|
---|
5384 | pUsage = pSession->pLdrUsage;
|
---|
5385 | while (pUsage && pUsage->pImage->pvImage != pReq->u.In.pvImageBase)
|
---|
5386 | pUsage = pUsage->pNext;
|
---|
5387 | if (!pUsage)
|
---|
5388 | {
|
---|
5389 | supdrvLdrUnlock(pDevExt);
|
---|
5390 | Log(("SUP_IOCTL_LDR_GET_SYMBOL: couldn't find image!\n"));
|
---|
5391 | return VERR_INVALID_HANDLE;
|
---|
5392 | }
|
---|
5393 | pImage = pUsage->pImage;
|
---|
5394 | if (pImage->uState != SUP_IOCTL_LDR_LOAD)
|
---|
5395 | {
|
---|
5396 | unsigned uState = pImage->uState;
|
---|
5397 | supdrvLdrUnlock(pDevExt);
|
---|
5398 | Log(("SUP_IOCTL_LDR_GET_SYMBOL: invalid image state %d (%#x)!\n", uState, uState)); NOREF(uState);
|
---|
5399 | return VERR_ALREADY_LOADED;
|
---|
5400 | }
|
---|
5401 |
|
---|
5402 | /*
|
---|
5403 | * Search the symbol strings.
|
---|
5404 | *
|
---|
5405 | * Note! The int32_t is for native loading on solaris where the data
|
---|
5406 | * and text segments are in very different places.
|
---|
5407 | */
|
---|
5408 | pchStrings = pImage->pachStrTab;
|
---|
5409 | paSyms = pImage->paSymbols;
|
---|
5410 | for (i = 0; i < pImage->cSymbols; i++)
|
---|
5411 | {
|
---|
5412 | if ( paSyms[i].offName + cbSymbol <= pImage->cbStrTab
|
---|
5413 | && !memcmp(pchStrings + paSyms[i].offName, pReq->u.In.szSymbol, cbSymbol))
|
---|
5414 | {
|
---|
5415 | pvSymbol = (uint8_t *)pImage->pvImage + (int32_t)paSyms[i].offSymbol;
|
---|
5416 | rc = VINF_SUCCESS;
|
---|
5417 | break;
|
---|
5418 | }
|
---|
5419 | }
|
---|
5420 | supdrvLdrUnlock(pDevExt);
|
---|
5421 | pReq->u.Out.pvSymbol = pvSymbol;
|
---|
5422 | return rc;
|
---|
5423 | }
|
---|
5424 |
|
---|
5425 |
|
---|
5426 | /**
|
---|
5427 | * Gets the address of a symbol in an open image or the support driver.
|
---|
5428 | *
|
---|
5429 | * @returns VINF_SUCCESS on success.
|
---|
5430 | * @returns
|
---|
5431 | * @param pDevExt Device globals.
|
---|
5432 | * @param pSession Session data.
|
---|
5433 | * @param pReq The request buffer.
|
---|
5434 | */
|
---|
5435 | static int supdrvIDC_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQGETSYM pReq)
|
---|
5436 | {
|
---|
5437 | int rc = VINF_SUCCESS;
|
---|
5438 | const char *pszSymbol = pReq->u.In.pszSymbol;
|
---|
5439 | const char *pszModule = pReq->u.In.pszModule;
|
---|
5440 | size_t cbSymbol;
|
---|
5441 | char const *pszEnd;
|
---|
5442 | uint32_t i;
|
---|
5443 |
|
---|
5444 | /*
|
---|
5445 | * Input validation.
|
---|
5446 | */
|
---|
5447 | AssertPtrReturn(pszSymbol, VERR_INVALID_POINTER);
|
---|
5448 | pszEnd = RTStrEnd(pszSymbol, 512);
|
---|
5449 | AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
|
---|
5450 | cbSymbol = pszEnd - pszSymbol + 1;
|
---|
5451 |
|
---|
5452 | if (pszModule)
|
---|
5453 | {
|
---|
5454 | AssertPtrReturn(pszModule, VERR_INVALID_POINTER);
|
---|
5455 | pszEnd = RTStrEnd(pszModule, 64);
|
---|
5456 | AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
|
---|
5457 | }
|
---|
5458 | Log3(("supdrvIDC_LdrGetSymbol: pszModule=%p:{%s} pszSymbol=%p:{%s}\n", pszModule, pszModule, pszSymbol, pszSymbol));
|
---|
5459 |
|
---|
5460 |
|
---|
5461 | if ( !pszModule
|
---|
5462 | || !strcmp(pszModule, "SupDrv"))
|
---|
5463 | {
|
---|
5464 | /*
|
---|
5465 | * Search the support driver export table.
|
---|
5466 | */
|
---|
5467 | for (i = 0; i < RT_ELEMENTS(g_aFunctions); i++)
|
---|
5468 | if (!strcmp(g_aFunctions[i].szName, pszSymbol))
|
---|
5469 | {
|
---|
5470 | pReq->u.Out.pfnSymbol = (PFNRT)(uintptr_t)g_aFunctions[i].pfn;
|
---|
5471 | break;
|
---|
5472 | }
|
---|
5473 | }
|
---|
5474 | else
|
---|
5475 | {
|
---|
5476 | /*
|
---|
5477 | * Find the loader image.
|
---|
5478 | */
|
---|
5479 | PSUPDRVLDRIMAGE pImage;
|
---|
5480 |
|
---|
5481 | supdrvLdrLock(pDevExt);
|
---|
5482 |
|
---|
5483 | for (pImage = pDevExt->pLdrImages; pImage; pImage = pImage->pNext)
|
---|
5484 | if (!strcmp(pImage->szName, pszModule))
|
---|
5485 | break;
|
---|
5486 | if (pImage && pImage->uState == SUP_IOCTL_LDR_LOAD)
|
---|
5487 | {
|
---|
5488 | /*
|
---|
5489 | * Search the symbol strings.
|
---|
5490 | */
|
---|
5491 | const char *pchStrings = pImage->pachStrTab;
|
---|
5492 | PCSUPLDRSYM paSyms = pImage->paSymbols;
|
---|
5493 | for (i = 0; i < pImage->cSymbols; i++)
|
---|
5494 | {
|
---|
5495 | if ( paSyms[i].offName + cbSymbol <= pImage->cbStrTab
|
---|
5496 | && !memcmp(pchStrings + paSyms[i].offName, pszSymbol, cbSymbol))
|
---|
5497 | {
|
---|
5498 | /*
|
---|
5499 | * Found it! Calc the symbol address and add a reference to the module.
|
---|
5500 | */
|
---|
5501 | pReq->u.Out.pfnSymbol = (PFNRT)((uintptr_t)pImage->pvImage + (int32_t)paSyms[i].offSymbol);
|
---|
5502 | rc = supdrvLdrAddUsage(pSession, pImage);
|
---|
5503 | break;
|
---|
5504 | }
|
---|
5505 | }
|
---|
5506 | }
|
---|
5507 | else
|
---|
5508 | rc = pImage ? VERR_WRONG_ORDER : VERR_MODULE_NOT_FOUND;
|
---|
5509 |
|
---|
5510 | supdrvLdrUnlock(pDevExt);
|
---|
5511 | }
|
---|
5512 | return rc;
|
---|
5513 | }
|
---|
5514 |
|
---|
5515 |
|
---|
5516 | /**
|
---|
5517 | * Updates the VMMR0 entry point pointers.
|
---|
5518 | *
|
---|
5519 | * @returns IPRT status code.
|
---|
5520 | * @param pDevExt Device globals.
|
---|
5521 | * @param pvVMMR0 VMMR0 image handle.
|
---|
5522 | * @param pvVMMR0EntryFast VMMR0EntryFast address.
|
---|
5523 | * @param pvVMMR0EntryEx VMMR0EntryEx address.
|
---|
5524 | * @remark Caller must own the loader mutex.
|
---|
5525 | */
|
---|
5526 | static int supdrvLdrSetVMMR0EPs(PSUPDRVDEVEXT pDevExt, void *pvVMMR0, void *pvVMMR0EntryFast, void *pvVMMR0EntryEx)
|
---|
5527 | {
|
---|
5528 | int rc = VINF_SUCCESS;
|
---|
5529 | LogFlow(("supdrvLdrSetR0EP pvVMMR0=%p pvVMMR0EntryFast=%p\n", pvVMMR0, pvVMMR0EntryFast));
|
---|
5530 |
|
---|
5531 |
|
---|
5532 | /*
|
---|
5533 | * Check if not yet set.
|
---|
5534 | */
|
---|
5535 | if (!pDevExt->pvVMMR0)
|
---|
5536 | {
|
---|
5537 | pDevExt->pvVMMR0 = pvVMMR0;
|
---|
5538 | *(void **)&pDevExt->pfnVMMR0EntryFast = pvVMMR0EntryFast;
|
---|
5539 | *(void **)&pDevExt->pfnVMMR0EntryEx = pvVMMR0EntryEx;
|
---|
5540 | ASMCompilerBarrier(); /* the above isn't nice, so be careful... */
|
---|
5541 | }
|
---|
5542 | else
|
---|
5543 | {
|
---|
5544 | /*
|
---|
5545 | * Return failure or success depending on whether the values match or not.
|
---|
5546 | */
|
---|
5547 | if ( pDevExt->pvVMMR0 != pvVMMR0
|
---|
5548 | || (uintptr_t)pDevExt->pfnVMMR0EntryFast != (uintptr_t)pvVMMR0EntryFast
|
---|
5549 | || (uintptr_t)pDevExt->pfnVMMR0EntryEx != (uintptr_t)pvVMMR0EntryEx)
|
---|
5550 | {
|
---|
5551 | AssertMsgFailed(("SUP_IOCTL_LDR_SETR0EP: Already set pointing to a different module!\n"));
|
---|
5552 | rc = VERR_INVALID_PARAMETER;
|
---|
5553 | }
|
---|
5554 | }
|
---|
5555 | return rc;
|
---|
5556 | }
|
---|
5557 |
|
---|
5558 |
|
---|
5559 | /**
|
---|
5560 | * Unsets the VMMR0 entry point installed by supdrvLdrSetR0EP.
|
---|
5561 | *
|
---|
5562 | * @param pDevExt Device globals.
|
---|
5563 | */
|
---|
5564 | static void supdrvLdrUnsetVMMR0EPs(PSUPDRVDEVEXT pDevExt)
|
---|
5565 | {
|
---|
5566 | pDevExt->pvVMMR0 = NULL;
|
---|
5567 | pDevExt->pfnVMMR0EntryFast = NULL;
|
---|
5568 | pDevExt->pfnVMMR0EntryEx = NULL;
|
---|
5569 | }
|
---|
5570 |
|
---|
5571 |
|
---|
5572 | /**
|
---|
5573 | * Adds a usage reference in the specified session of an image.
|
---|
5574 | *
|
---|
5575 | * Called while owning the loader semaphore.
|
---|
5576 | *
|
---|
5577 | * @returns VINF_SUCCESS on success and VERR_NO_MEMORY on failure.
|
---|
5578 | * @param pSession Session in question.
|
---|
5579 | * @param pImage Image which the session is using.
|
---|
5580 | */
|
---|
5581 | static int supdrvLdrAddUsage(PSUPDRVSESSION pSession, PSUPDRVLDRIMAGE pImage)
|
---|
5582 | {
|
---|
5583 | PSUPDRVLDRUSAGE pUsage;
|
---|
5584 | LogFlow(("supdrvLdrAddUsage: pImage=%p\n", pImage));
|
---|
5585 |
|
---|
5586 | /*
|
---|
5587 | * Referenced it already?
|
---|
5588 | */
|
---|
5589 | pUsage = pSession->pLdrUsage;
|
---|
5590 | while (pUsage)
|
---|
5591 | {
|
---|
5592 | if (pUsage->pImage == pImage)
|
---|
5593 | {
|
---|
5594 | pUsage->cUsage++;
|
---|
5595 | return VINF_SUCCESS;
|
---|
5596 | }
|
---|
5597 | pUsage = pUsage->pNext;
|
---|
5598 | }
|
---|
5599 |
|
---|
5600 | /*
|
---|
5601 | * Allocate new usage record.
|
---|
5602 | */
|
---|
5603 | pUsage = (PSUPDRVLDRUSAGE)RTMemAlloc(sizeof(*pUsage));
|
---|
5604 | AssertReturn(pUsage, /*VERR_NO_MEMORY*/ VERR_INTERNAL_ERROR_5);
|
---|
5605 | pUsage->cUsage = 1;
|
---|
5606 | pUsage->pImage = pImage;
|
---|
5607 | pUsage->pNext = pSession->pLdrUsage;
|
---|
5608 | pSession->pLdrUsage = pUsage;
|
---|
5609 | return VINF_SUCCESS;
|
---|
5610 | }
|
---|
5611 |
|
---|
5612 |
|
---|
5613 | /**
|
---|
5614 | * Frees a load image.
|
---|
5615 | *
|
---|
5616 | * @param pDevExt Pointer to device extension.
|
---|
5617 | * @param pImage Pointer to the image we're gonna free.
|
---|
5618 | * This image must exit!
|
---|
5619 | * @remark The caller MUST own SUPDRVDEVEXT::mtxLdr!
|
---|
5620 | */
|
---|
5621 | static void supdrvLdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
|
---|
5622 | {
|
---|
5623 | PSUPDRVLDRIMAGE pImagePrev;
|
---|
5624 | LogFlow(("supdrvLdrFree: pImage=%p\n", pImage));
|
---|
5625 |
|
---|
5626 | /*
|
---|
5627 | * Warn if we're releasing images while the image loader interface is
|
---|
5628 | * locked down -- we won't be able to reload them!
|
---|
5629 | */
|
---|
5630 | if (pDevExt->fLdrLockedDown)
|
---|
5631 | Log(("supdrvLdrFree: Warning: unloading '%s' image, while loader interface is locked down!\n", pImage->szName));
|
---|
5632 |
|
---|
5633 | /* find it - arg. should've used doubly linked list. */
|
---|
5634 | Assert(pDevExt->pLdrImages);
|
---|
5635 | pImagePrev = NULL;
|
---|
5636 | if (pDevExt->pLdrImages != pImage)
|
---|
5637 | {
|
---|
5638 | pImagePrev = pDevExt->pLdrImages;
|
---|
5639 | while (pImagePrev->pNext != pImage)
|
---|
5640 | pImagePrev = pImagePrev->pNext;
|
---|
5641 | Assert(pImagePrev->pNext == pImage);
|
---|
5642 | }
|
---|
5643 |
|
---|
5644 | /* unlink */
|
---|
5645 | if (pImagePrev)
|
---|
5646 | pImagePrev->pNext = pImage->pNext;
|
---|
5647 | else
|
---|
5648 | pDevExt->pLdrImages = pImage->pNext;
|
---|
5649 |
|
---|
5650 | /* check if this is VMMR0.r0 unset its entry point pointers. */
|
---|
5651 | if (pDevExt->pvVMMR0 == pImage->pvImage)
|
---|
5652 | supdrvLdrUnsetVMMR0EPs(pDevExt);
|
---|
5653 |
|
---|
5654 | /* check for objects with destructors in this image. (Shouldn't happen.) */
|
---|
5655 | if (pDevExt->pObjs)
|
---|
5656 | {
|
---|
5657 | unsigned cObjs = 0;
|
---|
5658 | PSUPDRVOBJ pObj;
|
---|
5659 | RTSpinlockAcquire(pDevExt->Spinlock);
|
---|
5660 | for (pObj = pDevExt->pObjs; pObj; pObj = pObj->pNext)
|
---|
5661 | if (RT_UNLIKELY((uintptr_t)pObj->pfnDestructor - (uintptr_t)pImage->pvImage < pImage->cbImageBits))
|
---|
5662 | {
|
---|
5663 | pObj->pfnDestructor = NULL;
|
---|
5664 | cObjs++;
|
---|
5665 | }
|
---|
5666 | RTSpinlockRelease(pDevExt->Spinlock);
|
---|
5667 | if (cObjs)
|
---|
5668 | OSDBGPRINT(("supdrvLdrFree: Image '%s' has %d dangling objects!\n", pImage->szName, cObjs));
|
---|
5669 | }
|
---|
5670 |
|
---|
5671 | /* call termination function if fully loaded. */
|
---|
5672 | if ( pImage->pfnModuleTerm
|
---|
5673 | && pImage->uState == SUP_IOCTL_LDR_LOAD)
|
---|
5674 | {
|
---|
5675 | LogFlow(("supdrvIOCtl_LdrLoad: calling pfnModuleTerm=%p\n", pImage->pfnModuleTerm));
|
---|
5676 | pImage->pfnModuleTerm(pImage);
|
---|
5677 | }
|
---|
5678 |
|
---|
5679 | /* Inform the tracing component. */
|
---|
5680 | supdrvTracerModuleUnloading(pDevExt, pImage);
|
---|
5681 |
|
---|
5682 | /* Do native unload if appropriate, then inform the native code about the
|
---|
5683 | unloading (mainly for non-native loading case). */
|
---|
5684 | if (pImage->fNative)
|
---|
5685 | supdrvOSLdrUnload(pDevExt, pImage);
|
---|
5686 | supdrvOSLdrNotifyUnloaded(pDevExt, pImage);
|
---|
5687 |
|
---|
5688 | /* free the image */
|
---|
5689 | pImage->cUsage = 0;
|
---|
5690 | pImage->pDevExt = NULL;
|
---|
5691 | pImage->pNext = NULL;
|
---|
5692 | pImage->uState = SUP_IOCTL_LDR_FREE;
|
---|
5693 | RTMemExecFree(pImage->pvImageAlloc, pImage->cbImageBits + 31);
|
---|
5694 | pImage->pvImageAlloc = NULL;
|
---|
5695 | RTMemFree(pImage->pachStrTab);
|
---|
5696 | pImage->pachStrTab = NULL;
|
---|
5697 | RTMemFree(pImage->paSymbols);
|
---|
5698 | pImage->paSymbols = NULL;
|
---|
5699 | RTMemFree(pImage);
|
---|
5700 | }
|
---|
5701 |
|
---|
5702 |
|
---|
5703 | /**
|
---|
5704 | * Acquires the loader lock.
|
---|
5705 | *
|
---|
5706 | * @returns IPRT status code.
|
---|
5707 | * @param pDevExt The device extension.
|
---|
5708 | */
|
---|
5709 | DECLINLINE(int) supdrvLdrLock(PSUPDRVDEVEXT pDevExt)
|
---|
5710 | {
|
---|
5711 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
5712 | int rc = RTSemMutexRequest(pDevExt->mtxLdr, RT_INDEFINITE_WAIT);
|
---|
5713 | #else
|
---|
5714 | int rc = RTSemFastMutexRequest(pDevExt->mtxLdr);
|
---|
5715 | #endif
|
---|
5716 | AssertRC(rc);
|
---|
5717 | return rc;
|
---|
5718 | }
|
---|
5719 |
|
---|
5720 |
|
---|
5721 | /**
|
---|
5722 | * Releases the loader lock.
|
---|
5723 | *
|
---|
5724 | * @returns IPRT status code.
|
---|
5725 | * @param pDevExt The device extension.
|
---|
5726 | */
|
---|
5727 | DECLINLINE(int) supdrvLdrUnlock(PSUPDRVDEVEXT pDevExt)
|
---|
5728 | {
|
---|
5729 | #ifdef SUPDRV_USE_MUTEX_FOR_LDR
|
---|
5730 | return RTSemMutexRelease(pDevExt->mtxLdr);
|
---|
5731 | #else
|
---|
5732 | return RTSemFastMutexRelease(pDevExt->mtxLdr);
|
---|
5733 | #endif
|
---|
5734 | }
|
---|
5735 |
|
---|
5736 |
|
---|
5737 | /**
|
---|
5738 | * Implements the service call request.
|
---|
5739 | *
|
---|
5740 | * @returns VBox status code.
|
---|
5741 | * @param pDevExt The device extension.
|
---|
5742 | * @param pSession The calling session.
|
---|
5743 | * @param pReq The request packet, valid.
|
---|
5744 | */
|
---|
5745 | static int supdrvIOCtl_CallServiceModule(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPCALLSERVICE pReq)
|
---|
5746 | {
|
---|
5747 | #if !defined(RT_OS_WINDOWS) || defined(RT_ARCH_AMD64) || defined(DEBUG)
|
---|
5748 | int rc;
|
---|
5749 |
|
---|
5750 | /*
|
---|
5751 | * Find the module first in the module referenced by the calling session.
|
---|
5752 | */
|
---|
5753 | rc = supdrvLdrLock(pDevExt);
|
---|
5754 | if (RT_SUCCESS(rc))
|
---|
5755 | {
|
---|
5756 | PFNSUPR0SERVICEREQHANDLER pfnServiceReqHandler = NULL;
|
---|
5757 | PSUPDRVLDRUSAGE pUsage;
|
---|
5758 |
|
---|
5759 | for (pUsage = pSession->pLdrUsage; pUsage; pUsage = pUsage->pNext)
|
---|
5760 | if ( pUsage->pImage->pfnServiceReqHandler
|
---|
5761 | && !strcmp(pUsage->pImage->szName, pReq->u.In.szName))
|
---|
5762 | {
|
---|
5763 | pfnServiceReqHandler = pUsage->pImage->pfnServiceReqHandler;
|
---|
5764 | break;
|
---|
5765 | }
|
---|
5766 | supdrvLdrUnlock(pDevExt);
|
---|
5767 |
|
---|
5768 | if (pfnServiceReqHandler)
|
---|
5769 | {
|
---|
5770 | /*
|
---|
5771 | * Call it.
|
---|
5772 | */
|
---|
5773 | if (pReq->Hdr.cbIn == SUP_IOCTL_CALL_SERVICE_SIZE(0))
|
---|
5774 | rc = pfnServiceReqHandler(pSession, pReq->u.In.uOperation, pReq->u.In.u64Arg, NULL);
|
---|
5775 | else
|
---|
5776 | rc = pfnServiceReqHandler(pSession, pReq->u.In.uOperation, pReq->u.In.u64Arg, (PSUPR0SERVICEREQHDR)&pReq->abReqPkt[0]);
|
---|
5777 | }
|
---|
5778 | else
|
---|
5779 | rc = VERR_SUPDRV_SERVICE_NOT_FOUND;
|
---|
5780 | }
|
---|
5781 |
|
---|
5782 | /* log it */
|
---|
5783 | if ( RT_FAILURE(rc)
|
---|
5784 | && rc != VERR_INTERRUPTED
|
---|
5785 | && rc != VERR_TIMEOUT)
|
---|
5786 | Log(("SUP_IOCTL_CALL_SERVICE: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
5787 | rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
5788 | else
|
---|
5789 | Log4(("SUP_IOCTL_CALL_SERVICE: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
|
---|
5790 | rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
|
---|
5791 | return rc;
|
---|
5792 | #else /* RT_OS_WINDOWS && !RT_ARCH_AMD64 && !DEBUG */
|
---|
5793 | RT_NOREF3(pDevExt, pSession, pReq);
|
---|
5794 | return VERR_NOT_IMPLEMENTED;
|
---|
5795 | #endif /* RT_OS_WINDOWS && !RT_ARCH_AMD64 && !DEBUG */
|
---|
5796 | }
|
---|
5797 |
|
---|
5798 |
|
---|
5799 | /**
|
---|
5800 | * Implements the logger settings request.
|
---|
5801 | *
|
---|
5802 | * @returns VBox status code.
|
---|
5803 | * @param pReq The request.
|
---|
5804 | */
|
---|
5805 | static int supdrvIOCtl_LoggerSettings(PSUPLOGGERSETTINGS pReq)
|
---|
5806 | {
|
---|
5807 | const char *pszGroup = &pReq->u.In.szStrings[pReq->u.In.offGroups];
|
---|
5808 | const char *pszFlags = &pReq->u.In.szStrings[pReq->u.In.offFlags];
|
---|
5809 | const char *pszDest = &pReq->u.In.szStrings[pReq->u.In.offDestination];
|
---|
5810 | PRTLOGGER pLogger = NULL;
|
---|
5811 | int rc;
|
---|
5812 |
|
---|
5813 | /*
|
---|
5814 | * Some further validation.
|
---|
5815 | */
|
---|
5816 | switch (pReq->u.In.fWhat)
|
---|
5817 | {
|
---|
5818 | case SUPLOGGERSETTINGS_WHAT_SETTINGS:
|
---|
5819 | case SUPLOGGERSETTINGS_WHAT_CREATE:
|
---|
5820 | break;
|
---|
5821 |
|
---|
5822 | case SUPLOGGERSETTINGS_WHAT_DESTROY:
|
---|
5823 | if (*pszGroup || *pszFlags || *pszDest)
|
---|
5824 | return VERR_INVALID_PARAMETER;
|
---|
5825 | if (pReq->u.In.fWhich == SUPLOGGERSETTINGS_WHICH_RELEASE)
|
---|
5826 | return VERR_ACCESS_DENIED;
|
---|
5827 | break;
|
---|
5828 |
|
---|
5829 | default:
|
---|
5830 | return VERR_INTERNAL_ERROR;
|
---|
5831 | }
|
---|
5832 |
|
---|
5833 | /*
|
---|
5834 | * Get the logger.
|
---|
5835 | */
|
---|
5836 | switch (pReq->u.In.fWhich)
|
---|
5837 | {
|
---|
5838 | case SUPLOGGERSETTINGS_WHICH_DEBUG:
|
---|
5839 | pLogger = RTLogGetDefaultInstance();
|
---|
5840 | break;
|
---|
5841 |
|
---|
5842 | case SUPLOGGERSETTINGS_WHICH_RELEASE:
|
---|
5843 | pLogger = RTLogRelGetDefaultInstance();
|
---|
5844 | break;
|
---|
5845 |
|
---|
5846 | default:
|
---|
5847 | return VERR_INTERNAL_ERROR;
|
---|
5848 | }
|
---|
5849 |
|
---|
5850 | /*
|
---|
5851 | * Do the job.
|
---|
5852 | */
|
---|
5853 | switch (pReq->u.In.fWhat)
|
---|
5854 | {
|
---|
5855 | case SUPLOGGERSETTINGS_WHAT_SETTINGS:
|
---|
5856 | if (pLogger)
|
---|
5857 | {
|
---|
5858 | rc = RTLogFlags(pLogger, pszFlags);
|
---|
5859 | if (RT_SUCCESS(rc))
|
---|
5860 | rc = RTLogGroupSettings(pLogger, pszGroup);
|
---|
5861 | NOREF(pszDest);
|
---|
5862 | }
|
---|
5863 | else
|
---|
5864 | rc = VERR_NOT_FOUND;
|
---|
5865 | break;
|
---|
5866 |
|
---|
5867 | case SUPLOGGERSETTINGS_WHAT_CREATE:
|
---|
5868 | {
|
---|
5869 | if (pLogger)
|
---|
5870 | rc = VERR_ALREADY_EXISTS;
|
---|
5871 | else
|
---|
5872 | {
|
---|
5873 | static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
|
---|
5874 |
|
---|
5875 | rc = RTLogCreate(&pLogger,
|
---|
5876 | 0 /* fFlags */,
|
---|
5877 | pszGroup,
|
---|
5878 | pReq->u.In.fWhich == SUPLOGGERSETTINGS_WHICH_DEBUG
|
---|
5879 | ? "VBOX_LOG"
|
---|
5880 | : "VBOX_RELEASE_LOG",
|
---|
5881 | RT_ELEMENTS(s_apszGroups),
|
---|
5882 | s_apszGroups,
|
---|
5883 | RTLOGDEST_STDOUT | RTLOGDEST_DEBUGGER,
|
---|
5884 | NULL);
|
---|
5885 | if (RT_SUCCESS(rc))
|
---|
5886 | {
|
---|
5887 | rc = RTLogFlags(pLogger, pszFlags);
|
---|
5888 | NOREF(pszDest);
|
---|
5889 | if (RT_SUCCESS(rc))
|
---|
5890 | {
|
---|
5891 | switch (pReq->u.In.fWhich)
|
---|
5892 | {
|
---|
5893 | case SUPLOGGERSETTINGS_WHICH_DEBUG:
|
---|
5894 | pLogger = RTLogSetDefaultInstance(pLogger);
|
---|
5895 | break;
|
---|
5896 | case SUPLOGGERSETTINGS_WHICH_RELEASE:
|
---|
5897 | pLogger = RTLogRelSetDefaultInstance(pLogger);
|
---|
5898 | break;
|
---|
5899 | }
|
---|
5900 | }
|
---|
5901 | RTLogDestroy(pLogger);
|
---|
5902 | }
|
---|
5903 | }
|
---|
5904 | break;
|
---|
5905 | }
|
---|
5906 |
|
---|
5907 | case SUPLOGGERSETTINGS_WHAT_DESTROY:
|
---|
5908 | switch (pReq->u.In.fWhich)
|
---|
5909 | {
|
---|
5910 | case SUPLOGGERSETTINGS_WHICH_DEBUG:
|
---|
5911 | pLogger = RTLogSetDefaultInstance(NULL);
|
---|
5912 | break;
|
---|
5913 | case SUPLOGGERSETTINGS_WHICH_RELEASE:
|
---|
5914 | pLogger = RTLogRelSetDefaultInstance(NULL);
|
---|
5915 | break;
|
---|
5916 | }
|
---|
5917 | rc = RTLogDestroy(pLogger);
|
---|
5918 | break;
|
---|
5919 |
|
---|
5920 | default:
|
---|
5921 | {
|
---|
5922 | rc = VERR_INTERNAL_ERROR;
|
---|
5923 | break;
|
---|
5924 | }
|
---|
5925 | }
|
---|
5926 |
|
---|
5927 | return rc;
|
---|
5928 | }
|
---|
5929 |
|
---|
5930 |
|
---|
5931 | /**
|
---|
5932 | * Implements the MSR prober operations.
|
---|
5933 | *
|
---|
5934 | * @returns VBox status code.
|
---|
5935 | * @param pDevExt The device extension.
|
---|
5936 | * @param pReq The request.
|
---|
5937 | */
|
---|
5938 | static int supdrvIOCtl_MsrProber(PSUPDRVDEVEXT pDevExt, PSUPMSRPROBER pReq)
|
---|
5939 | {
|
---|
5940 | #ifdef SUPDRV_WITH_MSR_PROBER
|
---|
5941 | RTCPUID const idCpu = pReq->u.In.idCpu == UINT32_MAX ? NIL_RTCPUID : pReq->u.In.idCpu;
|
---|
5942 | int rc;
|
---|
5943 |
|
---|
5944 | switch (pReq->u.In.enmOp)
|
---|
5945 | {
|
---|
5946 | case SUPMSRPROBEROP_READ:
|
---|
5947 | {
|
---|
5948 | uint64_t uValue;
|
---|
5949 | rc = supdrvOSMsrProberRead(pReq->u.In.uMsr, idCpu, &uValue);
|
---|
5950 | if (RT_SUCCESS(rc))
|
---|
5951 | {
|
---|
5952 | pReq->u.Out.uResults.Read.uValue = uValue;
|
---|
5953 | pReq->u.Out.uResults.Read.fGp = false;
|
---|
5954 | }
|
---|
5955 | else if (rc == VERR_ACCESS_DENIED)
|
---|
5956 | {
|
---|
5957 | pReq->u.Out.uResults.Read.uValue = 0;
|
---|
5958 | pReq->u.Out.uResults.Read.fGp = true;
|
---|
5959 | rc = VINF_SUCCESS;
|
---|
5960 | }
|
---|
5961 | break;
|
---|
5962 | }
|
---|
5963 |
|
---|
5964 | case SUPMSRPROBEROP_WRITE:
|
---|
5965 | rc = supdrvOSMsrProberWrite(pReq->u.In.uMsr, idCpu, pReq->u.In.uArgs.Write.uToWrite);
|
---|
5966 | if (RT_SUCCESS(rc))
|
---|
5967 | pReq->u.Out.uResults.Write.fGp = false;
|
---|
5968 | else if (rc == VERR_ACCESS_DENIED)
|
---|
5969 | {
|
---|
5970 | pReq->u.Out.uResults.Write.fGp = true;
|
---|
5971 | rc = VINF_SUCCESS;
|
---|
5972 | }
|
---|
5973 | break;
|
---|
5974 |
|
---|
5975 | case SUPMSRPROBEROP_MODIFY:
|
---|
5976 | case SUPMSRPROBEROP_MODIFY_FASTER:
|
---|
5977 | rc = supdrvOSMsrProberModify(idCpu, pReq);
|
---|
5978 | break;
|
---|
5979 |
|
---|
5980 | default:
|
---|
5981 | return VERR_INVALID_FUNCTION;
|
---|
5982 | }
|
---|
5983 | RT_NOREF1(pDevExt);
|
---|
5984 | return rc;
|
---|
5985 | #else
|
---|
5986 | RT_NOREF2(pDevExt, pReq);
|
---|
5987 | return VERR_NOT_IMPLEMENTED;
|
---|
5988 | #endif
|
---|
5989 | }
|
---|
5990 |
|
---|
5991 |
|
---|
5992 | /**
|
---|
5993 | * Resume built-in keyboard on MacBook Air and Pro hosts.
|
---|
5994 | * If there is no built-in keyboard device, return success anyway.
|
---|
5995 | *
|
---|
5996 | * @returns 0 on Mac OS X platform, VERR_NOT_IMPLEMENTED on the other ones.
|
---|
5997 | */
|
---|
5998 | static int supdrvIOCtl_ResumeSuspendedKbds(void)
|
---|
5999 | {
|
---|
6000 | #if defined(RT_OS_DARWIN)
|
---|
6001 | return supdrvDarwinResumeSuspendedKbds();
|
---|
6002 | #else
|
---|
6003 | return VERR_NOT_IMPLEMENTED;
|
---|
6004 | #endif
|
---|
6005 | }
|
---|
6006 |
|
---|