[55401] | 1 | /* $Id: VBoxGuestR0LibHGCMInternal.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
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[1] | 2 | /** @file
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[21211] | 3 | * VBoxGuestLib - Host-Guest Communication Manager internal functions, implemented by VBoxGuest
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[1] | 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2006-2023 Oracle and/or its affiliates.
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[1] | 8 | *
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[72627] | 9 | * Permission is hereby granted, free of charge, to any person
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| 10 | * obtaining a copy of this software and associated documentation
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| 11 | * files (the "Software"), to deal in the Software without
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| 12 | * restriction, including without limitation the rights to use,
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| 13 | * copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 14 | * copies of the Software, and to permit persons to whom the
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| 15 | * Software is furnished to do so, subject to the following
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| 16 | * conditions:
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[8155] | 17 | *
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[72627] | 18 | * The above copyright notice and this permission notice shall be
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| 19 | * included in all copies or substantial portions of the Software.
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[26425] | 20 | *
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[72627] | 21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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| 22 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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| 23 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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| 24 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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| 25 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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| 26 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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| 27 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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| 28 | * OTHER DEALINGS IN THE SOFTWARE.
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[1] | 29 | */
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| 30 |
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| 31 |
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[57358] | 32 | /*********************************************************************************************************************************
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| 33 | * Header Files *
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| 34 | *********************************************************************************************************************************/
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[39693] | 35 | #define LOG_GROUP LOG_GROUP_HGCM
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| 36 |
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[68645] | 37 | #include "VBoxGuestR0LibInternal.h"
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[21506] | 38 | #include <iprt/asm.h>
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[21464] | 39 | #include <iprt/assert.h>
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| 40 | #include <iprt/mem.h>
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| 41 | #include <iprt/memobj.h>
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[2194] | 42 | #include <iprt/string.h>
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[21506] | 43 | #include <iprt/thread.h>
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| 44 | #include <iprt/time.h>
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[76419] | 45 | #include <VBox/err.h>
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[1] | 46 |
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[68653] | 47 | #ifndef VBGL_VBOXGUEST
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| 48 | # error "This file should only be part of the VBoxGuestR0LibBase library that is linked into VBoxGuest."
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| 49 | #endif
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[57358] | 50 |
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[68653] | 51 |
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[57358] | 52 | /*********************************************************************************************************************************
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| 53 | * Defined Constants And Macros *
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| 54 | *********************************************************************************************************************************/
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[21464] | 55 | /** The max parameter buffer size for a user request. */
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[29658] | 56 | #define VBGLR0_MAX_HGCM_USER_PARM (24*_1M)
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[21464] | 57 | /** The max parameter buffer size for a kernel request. */
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| 58 | #define VBGLR0_MAX_HGCM_KERNEL_PARM (16*_1M)
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[75548] | 59 | /** The max embedded buffer size. */
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| 60 | #define VBGLR0_MAX_HGCM_EMBEDDED_BUFFER _64K
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| 61 |
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[48034] | 62 | #if defined(RT_OS_LINUX) || defined(RT_OS_DARWIN)
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[21464] | 63 | /** Linux needs to use bounce buffers since RTR0MemObjLockUser has unwanted
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[45459] | 64 | * side effects.
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[48034] | 65 | * Darwin 32bit & 64bit also needs this because of 4GB/4GB user/kernel space. */
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[23610] | 66 | # define USE_BOUNCE_BUFFERS
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[21464] | 67 | #endif
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| 68 |
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[21506] | 69 |
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[57358] | 70 | /*********************************************************************************************************************************
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| 71 | * Structures and Typedefs *
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| 72 | *********************************************************************************************************************************/
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[21487] | 73 | /**
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| 74 | * Lock info structure used by VbglR0HGCMInternalCall and its helpers.
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| 75 | */
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| 76 | struct VbglR0ParmInfo
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| 77 | {
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| 78 | uint32_t cLockBufs;
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| 79 | struct
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| 80 | {
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| 81 | uint32_t iParm;
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| 82 | RTR0MEMOBJ hObj;
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[23610] | 83 | #ifdef USE_BOUNCE_BUFFERS
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[21487] | 84 | void *pvSmallBuf;
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| 85 | #endif
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| 86 | } aLockBufs[10];
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| 87 | };
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[21464] | 88 |
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| 89 |
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[21487] | 90 |
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[1] | 91 | /* These functions can be only used by VBoxGuest. */
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| 92 |
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[70873] | 93 | DECLR0VBGL(int) VbglR0HGCMInternalConnect(HGCMServiceLocation const *pLoc, uint32_t fRequestor, HGCMCLIENTID *pidClient,
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[68550] | 94 | PFNVBGLHGCMCALLBACK pfnAsyncCallback, void *pvAsyncData, uint32_t u32AsyncData)
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[1] | 95 | {
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[769] | 96 | int rc;
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[68550] | 97 | if ( RT_VALID_PTR(pLoc)
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| 98 | && RT_VALID_PTR(pidClient)
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| 99 | && RT_VALID_PTR(pfnAsyncCallback))
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[1] | 100 | {
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[68550] | 101 | /* Allocate request */
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| 102 | VMMDevHGCMConnect *pHGCMConnect = NULL;
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[68654] | 103 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pHGCMConnect, sizeof(VMMDevHGCMConnect), VMMDevReq_HGCMConnect);
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[68550] | 104 | if (RT_SUCCESS(rc))
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| 105 | {
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| 106 | /* Initialize request memory */
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[70873] | 107 | pHGCMConnect->header.header.fRequestor = fRequestor;
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| 108 |
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[68550] | 109 | pHGCMConnect->header.fu32Flags = 0;
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[1] | 110 |
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[68550] | 111 | memcpy(&pHGCMConnect->loc, pLoc, sizeof(pHGCMConnect->loc));
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| 112 | pHGCMConnect->u32ClientID = 0;
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[1] | 113 |
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[68550] | 114 | /* Issue request */
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[68654] | 115 | rc = VbglR0GRPerform (&pHGCMConnect->header.header);
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[68550] | 116 | if (RT_SUCCESS(rc))
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| 117 | {
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| 118 | /* Check if host decides to process the request asynchronously. */
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| 119 | if (rc == VINF_HGCM_ASYNC_EXECUTE)
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| 120 | {
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| 121 | /* Wait for request completion interrupt notification from host */
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| 122 | pfnAsyncCallback(&pHGCMConnect->header, pvAsyncData, u32AsyncData);
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| 123 | }
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[1] | 124 |
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[68550] | 125 | rc = pHGCMConnect->header.result;
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| 126 | if (RT_SUCCESS(rc))
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| 127 | *pidClient = pHGCMConnect->u32ClientID;
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[1] | 128 | }
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[68654] | 129 | VbglR0GRFree(&pHGCMConnect->header.header);
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[1] | 130 | }
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| 131 | }
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[68550] | 132 | else
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| 133 | rc = VERR_INVALID_PARAMETER;
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[1] | 134 | return rc;
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| 135 | }
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| 136 |
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| 137 |
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[70873] | 138 | DECLR0VBGL(int) VbglR0HGCMInternalDisconnect(HGCMCLIENTID idClient, uint32_t fRequestor,
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[68550] | 139 | PFNVBGLHGCMCALLBACK pfnAsyncCallback, void *pvAsyncData, uint32_t u32AsyncData)
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[1] | 140 | {
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[769] | 141 | int rc;
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[68550] | 142 | if ( idClient != 0
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| 143 | && pfnAsyncCallback)
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[1] | 144 | {
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[68550] | 145 | /* Allocate request */
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| 146 | VMMDevHGCMDisconnect *pHGCMDisconnect = NULL;
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[68654] | 147 | rc = VbglR0GRAlloc ((VMMDevRequestHeader **)&pHGCMDisconnect, sizeof (VMMDevHGCMDisconnect), VMMDevReq_HGCMDisconnect);
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[68550] | 148 | if (RT_SUCCESS(rc))
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| 149 | {
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| 150 | /* Initialize request memory */
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[70873] | 151 | pHGCMDisconnect->header.header.fRequestor = fRequestor;
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| 152 |
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[68550] | 153 | pHGCMDisconnect->header.fu32Flags = 0;
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[1] | 154 |
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[68550] | 155 | pHGCMDisconnect->u32ClientID = idClient;
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[1] | 156 |
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[68550] | 157 | /* Issue request */
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[68654] | 158 | rc = VbglR0GRPerform(&pHGCMDisconnect->header.header);
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[68550] | 159 | if (RT_SUCCESS(rc))
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| 160 | {
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| 161 | /* Check if host decides to process the request asynchronously. */
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| 162 | if (rc == VINF_HGCM_ASYNC_EXECUTE)
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| 163 | {
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| 164 | /* Wait for request completion interrupt notification from host */
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| 165 | pfnAsyncCallback(&pHGCMDisconnect->header, pvAsyncData, u32AsyncData);
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| 166 | }
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[1] | 167 |
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[68550] | 168 | rc = pHGCMDisconnect->header.result;
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[1] | 169 | }
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| 170 |
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[68654] | 171 | VbglR0GRFree(&pHGCMDisconnect->header.header);
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[1] | 172 | }
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| 173 | }
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[68550] | 174 | else
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| 175 | rc = VERR_INVALID_PARAMETER;
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[1] | 176 | return rc;
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| 177 | }
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| 178 |
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| 179 |
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[21464] | 180 | /**
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| 181 | * Preprocesses the HGCM call, validating and locking/buffering parameters.
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| 182 | *
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| 183 | * @returns VBox status code.
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| 184 | *
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| 185 | * @param pCallInfo The call info.
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| 186 | * @param cbCallInfo The size of the call info structure.
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| 187 | * @param fIsUser Is it a user request or kernel request.
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| 188 | * @param pcbExtra Where to return the extra request space needed for
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| 189 | * physical page lists.
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| 190 | */
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[68550] | 191 | static int vbglR0HGCMInternalPreprocessCall(PCVBGLIOCHGCMCALL pCallInfo, uint32_t cbCallInfo,
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[21464] | 192 | bool fIsUser, struct VbglR0ParmInfo *pParmInfo, size_t *pcbExtra)
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| 193 | {
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[68550] | 194 | HGCMFunctionParameter const *pSrcParm = VBGL_HGCM_GET_CALL_PARMS(pCallInfo);
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| 195 | uint32_t const cParms = pCallInfo->cParms;
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| 196 | uint32_t iParm;
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| 197 | uint32_t cb;
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[21464] | 198 |
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| 199 | /*
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| 200 | * Lock down the any linear buffers so we can get their addresses
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| 201 | * and figure out how much extra storage we need for page lists.
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[21487] | 202 | *
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| 203 | * Note! With kernel mode users we can be assertive. For user mode users
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| 204 | * we should just (debug) log it and fail without any fanfare.
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[21464] | 205 | */
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| 206 | *pcbExtra = 0;
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| 207 | pParmInfo->cLockBufs = 0;
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| 208 | for (iParm = 0; iParm < cParms; iParm++, pSrcParm++)
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| 209 | {
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| 210 | switch (pSrcParm->type)
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| 211 | {
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| 212 | case VMMDevHGCMParmType_32bit:
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[21487] | 213 | Log4(("GstHGCMCall: parm=%u type=32bit: %#010x\n", iParm, pSrcParm->u.value32));
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| 214 | break;
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| 215 |
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[21464] | 216 | case VMMDevHGCMParmType_64bit:
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[51450] | 217 | Log4(("GstHGCMCall: parm=%u type=64bit: %#018RX64\n", iParm, pSrcParm->u.value64));
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[21464] | 218 | break;
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| 219 |
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| 220 | case VMMDevHGCMParmType_PageList:
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[76196] | 221 | case VMMDevHGCMParmType_ContiguousPageList:
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[21464] | 222 | if (fIsUser)
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| 223 | return VERR_INVALID_PARAMETER;
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[21487] | 224 | cb = pSrcParm->u.PageList.size;
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| 225 | if (cb)
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[21464] | 226 | {
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[21487] | 227 | uint32_t off = pSrcParm->u.PageList.offset;
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| 228 | HGCMPageListInfo *pPgLst;
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| 229 | uint32_t cPages;
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| 230 | uint32_t u32;
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[21464] | 231 |
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[21489] | 232 | AssertMsgReturn(cb <= VBGLR0_MAX_HGCM_KERNEL_PARM, ("%#x > %#x\n", cb, VBGLR0_MAX_HGCM_KERNEL_PARM),
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| 233 | VERR_OUT_OF_RANGE);
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[68550] | 234 | AssertMsgReturn( off >= cParms * sizeof(HGCMFunctionParameter)
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[21510] | 235 | && off <= cbCallInfo - sizeof(HGCMPageListInfo),
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[68550] | 236 | ("offset=%#x cParms=%#x cbCallInfo=%#x\n", off, cParms, cbCallInfo),
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[21487] | 237 | VERR_INVALID_PARAMETER);
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[21464] | 238 |
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[21487] | 239 | pPgLst = (HGCMPageListInfo *)((uint8_t *)pCallInfo + off);
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| 240 | cPages = pPgLst->cPages;
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[73097] | 241 | u32 = RT_UOFFSETOF_DYN(HGCMPageListInfo, aPages[cPages]) + off;
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[21487] | 242 | AssertMsgReturn(u32 <= cbCallInfo,
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| 243 | ("u32=%#x (cPages=%#x offset=%#x) cbCallInfo=%#x\n", u32, cPages, off, cbCallInfo),
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| 244 | VERR_INVALID_PARAMETER);
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| 245 | AssertMsgReturn(pPgLst->offFirstPage < PAGE_SIZE, ("#x\n", pPgLst->offFirstPage), VERR_INVALID_PARAMETER);
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| 246 | u32 = RT_ALIGN_32(pPgLst->offFirstPage + cb, PAGE_SIZE) >> PAGE_SHIFT;
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| 247 | AssertMsgReturn(cPages == u32, ("cPages=%#x u32=%#x\n", cPages, u32), VERR_INVALID_PARAMETER);
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[21489] | 248 | AssertMsgReturn(VBOX_HGCM_F_PARM_ARE_VALID(pPgLst->flags), ("%#x\n", pPgLst->flags), VERR_INVALID_PARAMETER);
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| 249 | Log4(("GstHGCMCall: parm=%u type=pglst: cb=%#010x cPgs=%u offPg0=%#x flags=%#x\n",
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| 250 | iParm, cb, cPages, pPgLst->offFirstPage, pPgLst->flags));
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[21487] | 251 | u32 = cPages;
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| 252 | while (u32-- > 0)
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| 253 | {
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| 254 | Log4(("GstHGCMCall: pg#%u=%RHp\n", u32, pPgLst->aPages[u32]));
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| 255 | AssertMsgReturn(!(pPgLst->aPages[u32] & (PAGE_OFFSET_MASK | UINT64_C(0xfff0000000000000))),
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| 256 | ("pg#%u=%RHp\n", u32, pPgLst->aPages[u32]),
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| 257 | VERR_INVALID_PARAMETER);
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| 258 | }
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| 259 |
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[73097] | 260 | *pcbExtra += RT_UOFFSETOF_DYN(HGCMPageListInfo, aPages[pPgLst->cPages]);
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[21464] | 261 | }
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[21487] | 262 | else
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| 263 | Log4(("GstHGCMCall: parm=%u type=pglst: cb=0\n", iParm));
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[21464] | 264 | break;
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| 265 |
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[75548] | 266 | case VMMDevHGCMParmType_Embedded:
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| 267 | if (fIsUser) /// @todo relax this.
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| 268 | return VERR_INVALID_PARAMETER;
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| 269 | cb = pSrcParm->u.Embedded.cbData;
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| 270 | if (cb)
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| 271 | {
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| 272 | uint32_t off = pSrcParm->u.Embedded.offData;
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| 273 | AssertMsgReturn(cb <= VBGLR0_MAX_HGCM_EMBEDDED_BUFFER, ("%#x > %#x\n", cb, VBGLR0_MAX_HGCM_EMBEDDED_BUFFER),
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| 274 | VERR_INVALID_PARAMETER);
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| 275 | AssertMsgReturn(cb <= cbCallInfo - cParms * sizeof(HGCMFunctionParameter),
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| 276 | ("cb=%#x cParms=%#x cbCallInfo=%3x\n", cb, cParms, cbCallInfo),
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| 277 | VERR_INVALID_PARAMETER);
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| 278 | AssertMsgReturn( off >= cParms * sizeof(HGCMFunctionParameter)
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| 279 | && off <= cbCallInfo - cb,
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| 280 | ("offData=%#x cParms=%#x cbCallInfo=%#x\n", off, cParms, cbCallInfo),
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| 281 | VERR_INVALID_PARAMETER);
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| 282 | AssertMsgReturn(VBOX_HGCM_F_PARM_ARE_VALID(pSrcParm->u.Embedded.fFlags),
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| 283 | ("%#x\n", pSrcParm->u.Embedded.fFlags), VERR_INVALID_PARAMETER);
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| 284 |
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| 285 | *pcbExtra += RT_ALIGN_32(cb, 8);
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| 286 | }
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| 287 | else
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| 288 | Log4(("GstHGCMCall: parm=%u type=embed: cb=0\n", iParm));
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| 289 | break;
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| 290 |
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| 291 |
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[21464] | 292 | case VMMDevHGCMParmType_LinAddr_Locked_In:
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| 293 | case VMMDevHGCMParmType_LinAddr_Locked_Out:
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| 294 | case VMMDevHGCMParmType_LinAddr_Locked:
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| 295 | if (fIsUser)
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| 296 | return VERR_INVALID_PARAMETER;
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[40901] | 297 | if (!VBGLR0_CAN_USE_PHYS_PAGE_LIST(/*a_fLocked =*/ true))
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[21464] | 298 | {
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[21487] | 299 | cb = pSrcParm->u.Pointer.size;
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[21489] | 300 | AssertMsgReturn(cb <= VBGLR0_MAX_HGCM_KERNEL_PARM, ("%#x > %#x\n", cb, VBGLR0_MAX_HGCM_KERNEL_PARM),
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| 301 | VERR_OUT_OF_RANGE);
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[21487] | 302 | if (cb != 0)
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[21489] | 303 | Log4(("GstHGCMCall: parm=%u type=%#x: cb=%#010x pv=%p\n",
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| 304 | iParm, pSrcParm->type, cb, pSrcParm->u.Pointer.u.linearAddr));
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[21487] | 305 | else
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| 306 | Log4(("GstHGCMCall: parm=%u type=%#x: cb=0\n", iParm, pSrcParm->type));
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[21464] | 307 | break;
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| 308 | }
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[69046] | 309 | RT_FALL_THRU();
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[21464] | 310 |
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| 311 | case VMMDevHGCMParmType_LinAddr_In:
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| 312 | case VMMDevHGCMParmType_LinAddr_Out:
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| 313 | case VMMDevHGCMParmType_LinAddr:
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[21487] | 314 | cb = pSrcParm->u.Pointer.size;
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| 315 | if (cb != 0)
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[21464] | 316 | {
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[23610] | 317 | #ifdef USE_BOUNCE_BUFFERS
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[21487] | 318 | void *pvSmallBuf = NULL;
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| 319 | #endif
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| 320 | uint32_t iLockBuf = pParmInfo->cLockBufs;
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| 321 | RTR0MEMOBJ hObj;
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| 322 | int rc;
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[23610] | 323 | uint32_t fAccess = pSrcParm->type == VMMDevHGCMParmType_LinAddr_In
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| 324 | || pSrcParm->type == VMMDevHGCMParmType_LinAddr_Locked_In
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| 325 | ? RTMEM_PROT_READ
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| 326 | : RTMEM_PROT_READ | RTMEM_PROT_WRITE;
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[21464] | 327 |
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[21487] | 328 | AssertReturn(iLockBuf < RT_ELEMENTS(pParmInfo->aLockBufs), VERR_INVALID_PARAMETER);
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[21464] | 329 | if (!fIsUser)
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[21487] | 330 | {
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[21489] | 331 | AssertMsgReturn(cb <= VBGLR0_MAX_HGCM_KERNEL_PARM, ("%#x > %#x\n", cb, VBGLR0_MAX_HGCM_KERNEL_PARM),
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| 332 | VERR_OUT_OF_RANGE);
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[23610] | 333 | rc = RTR0MemObjLockKernel(&hObj, (void *)pSrcParm->u.Pointer.u.linearAddr, cb, fAccess);
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[21487] | 334 | if (RT_FAILURE(rc))
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| 335 | {
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| 336 | Log(("GstHGCMCall: id=%#x fn=%u parm=%u RTR0MemObjLockKernel(,%p,%#x) -> %Rrc\n",
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| 337 | pCallInfo->u32ClientID, pCallInfo->u32Function, iParm, pSrcParm->u.Pointer.u.linearAddr, cb, rc));
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| 338 | return rc;
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| 339 | }
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[21489] | 340 | Log3(("GstHGCMCall: parm=%u type=%#x: cb=%#010x pv=%p locked kernel -> %p\n",
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| 341 | iParm, pSrcParm->type, cb, pSrcParm->u.Pointer.u.linearAddr, hObj));
|
---|
[21487] | 342 | }
|
---|
[31749] | 343 | else if (cb > VBGLR0_MAX_HGCM_USER_PARM)
|
---|
| 344 | {
|
---|
| 345 | Log(("GstHGCMCall: id=%#x fn=%u parm=%u pv=%p cb=%#x > %#x -> out of range\n",
|
---|
| 346 | pCallInfo->u32ClientID, pCallInfo->u32Function, iParm, pSrcParm->u.Pointer.u.linearAddr,
|
---|
| 347 | cb, VBGLR0_MAX_HGCM_USER_PARM));
|
---|
| 348 | return VERR_OUT_OF_RANGE;
|
---|
| 349 | }
|
---|
[21464] | 350 | else
|
---|
| 351 | {
|
---|
[23610] | 352 | #ifndef USE_BOUNCE_BUFFERS
|
---|
| 353 | rc = RTR0MemObjLockUser(&hObj, (RTR3PTR)pSrcParm->u.Pointer.u.linearAddr, cb, fAccess, NIL_RTR0PROCESS);
|
---|
[21487] | 354 | if (RT_FAILURE(rc))
|
---|
| 355 | {
|
---|
| 356 | Log(("GstHGCMCall: id=%#x fn=%u parm=%u RTR0MemObjLockUser(,%p,%#x,nil) -> %Rrc\n",
|
---|
| 357 | pCallInfo->u32ClientID, pCallInfo->u32Function, iParm, pSrcParm->u.Pointer.u.linearAddr, cb, rc));
|
---|
| 358 | return rc;
|
---|
| 359 | }
|
---|
[21489] | 360 | Log3(("GstHGCMCall: parm=%u type=%#x: cb=%#010x pv=%p locked user -> %p\n",
|
---|
| 361 | iParm, pSrcParm->type, cb, pSrcParm->u.Pointer.u.linearAddr, hObj));
|
---|
[21487] | 362 |
|
---|
[23610] | 363 | #else /* USE_BOUNCE_BUFFERS */
|
---|
[21487] | 364 | /*
|
---|
| 365 | * This is a bit massive, but we don't want to waste a
|
---|
| 366 | * whole page for a 3 byte string buffer (guest props).
|
---|
| 367 | *
|
---|
| 368 | * The threshold is ASSUMING sizeof(RTMEMHDR) == 16 and
|
---|
| 369 | * the system is using some power of two allocator.
|
---|
| 370 | */
|
---|
| 371 | /** @todo A more efficient strategy would be to combine buffers. However it
|
---|
| 372 | * is probably going to be more massive than the current code, so
|
---|
[51522] | 373 | * it can wait till later. */
|
---|
[31749] | 374 | bool fCopyIn = pSrcParm->type != VMMDevHGCMParmType_LinAddr_Out
|
---|
| 375 | && pSrcParm->type != VMMDevHGCMParmType_LinAddr_Locked_Out;
|
---|
[21487] | 376 | if (cb <= PAGE_SIZE / 2 - 16)
|
---|
| 377 | {
|
---|
| 378 | pvSmallBuf = fCopyIn ? RTMemTmpAlloc(cb) : RTMemTmpAllocZ(cb);
|
---|
| 379 | if (RT_UNLIKELY(!pvSmallBuf))
|
---|
| 380 | return VERR_NO_MEMORY;
|
---|
| 381 | if (fCopyIn)
|
---|
| 382 | {
|
---|
| 383 | rc = RTR0MemUserCopyFrom(pvSmallBuf, pSrcParm->u.Pointer.u.linearAddr, cb);
|
---|
| 384 | if (RT_FAILURE(rc))
|
---|
| 385 | {
|
---|
| 386 | RTMemTmpFree(pvSmallBuf);
|
---|
| 387 | Log(("GstHGCMCall: id=%#x fn=%u parm=%u RTR0MemUserCopyFrom(,%p,%#x) -> %Rrc\n",
|
---|
[21489] | 388 | pCallInfo->u32ClientID, pCallInfo->u32Function, iParm,
|
---|
| 389 | pSrcParm->u.Pointer.u.linearAddr, cb, rc));
|
---|
[21487] | 390 | return rc;
|
---|
| 391 | }
|
---|
| 392 | }
|
---|
[23610] | 393 | rc = RTR0MemObjLockKernel(&hObj, pvSmallBuf, cb, fAccess);
|
---|
[21464] | 394 | if (RT_FAILURE(rc))
|
---|
[21487] | 395 | {
|
---|
| 396 | RTMemTmpFree(pvSmallBuf);
|
---|
[21489] | 397 | Log(("GstHGCMCall: RTR0MemObjLockKernel failed for small buffer: rc=%Rrc pvSmallBuf=%p cb=%#x\n",
|
---|
| 398 | rc, pvSmallBuf, cb));
|
---|
[21487] | 399 | return rc;
|
---|
| 400 | }
|
---|
[21489] | 401 | Log3(("GstHGCMCall: parm=%u type=%#x: cb=%#010x pv=%p small buffer %p -> %p\n",
|
---|
| 402 | iParm, pSrcParm->type, cb, pSrcParm->u.Pointer.u.linearAddr, pvSmallBuf, hObj));
|
---|
[21464] | 403 | }
|
---|
[21487] | 404 | else
|
---|
| 405 | {
|
---|
| 406 | rc = RTR0MemObjAllocPage(&hObj, cb, false /*fExecutable*/);
|
---|
| 407 | if (RT_FAILURE(rc))
|
---|
| 408 | return rc;
|
---|
| 409 | if (!fCopyIn)
|
---|
| 410 | memset(RTR0MemObjAddress(hObj), '\0', cb);
|
---|
| 411 | else
|
---|
| 412 | {
|
---|
| 413 | rc = RTR0MemUserCopyFrom(RTR0MemObjAddress(hObj), pSrcParm->u.Pointer.u.linearAddr, cb);
|
---|
| 414 | if (RT_FAILURE(rc))
|
---|
| 415 | {
|
---|
| 416 | RTR0MemObjFree(hObj, false /*fFreeMappings*/);
|
---|
| 417 | Log(("GstHGCMCall: id=%#x fn=%u parm=%u RTR0MemUserCopyFrom(,%p,%#x) -> %Rrc\n",
|
---|
[21489] | 418 | pCallInfo->u32ClientID, pCallInfo->u32Function, iParm,
|
---|
| 419 | pSrcParm->u.Pointer.u.linearAddr, cb, rc));
|
---|
[21487] | 420 | return rc;
|
---|
| 421 | }
|
---|
| 422 | }
|
---|
[21489] | 423 | Log3(("GstHGCMCall: parm=%u type=%#x: cb=%#010x pv=%p big buffer -> %p\n",
|
---|
| 424 | iParm, pSrcParm->type, cb, pSrcParm->u.Pointer.u.linearAddr, hObj));
|
---|
[21487] | 425 | }
|
---|
[23610] | 426 | #endif /* USE_BOUNCE_BUFFERS */
|
---|
[21464] | 427 | }
|
---|
| 428 |
|
---|
[21487] | 429 | pParmInfo->aLockBufs[iLockBuf].iParm = iParm;
|
---|
| 430 | pParmInfo->aLockBufs[iLockBuf].hObj = hObj;
|
---|
[23610] | 431 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21487] | 432 | pParmInfo->aLockBufs[iLockBuf].pvSmallBuf = pvSmallBuf;
|
---|
| 433 | #endif
|
---|
| 434 | pParmInfo->cLockBufs = iLockBuf + 1;
|
---|
[21464] | 435 |
|
---|
[40901] | 436 | if (VBGLR0_CAN_USE_PHYS_PAGE_LIST(/*a_fLocked =*/ false))
|
---|
[21464] | 437 | {
|
---|
[36373] | 438 | size_t const cPages = RTR0MemObjSize(hObj) >> PAGE_SHIFT;
|
---|
[73097] | 439 | *pcbExtra += RT_UOFFSETOF_DYN(HGCMPageListInfo, aPages[cPages]);
|
---|
[21464] | 440 | }
|
---|
| 441 | }
|
---|
[21487] | 442 | else
|
---|
| 443 | Log4(("GstHGCMCall: parm=%u type=%#x: cb=0\n", iParm, pSrcParm->type));
|
---|
[21464] | 444 | break;
|
---|
| 445 |
|
---|
| 446 | default:
|
---|
| 447 | return VERR_INVALID_PARAMETER;
|
---|
| 448 | }
|
---|
| 449 | }
|
---|
| 450 |
|
---|
| 451 | return VINF_SUCCESS;
|
---|
| 452 | }
|
---|
| 453 |
|
---|
[21489] | 454 |
|
---|
[21464] | 455 | /**
|
---|
| 456 | * Translates locked linear address to the normal type.
|
---|
| 457 | * The locked types are only for the guest side and not handled by the host.
|
---|
| 458 | *
|
---|
| 459 | * @returns normal linear address type.
|
---|
| 460 | * @param enmType The type.
|
---|
| 461 | */
|
---|
| 462 | static HGCMFunctionParameterType vbglR0HGCMInternalConvertLinAddrType(HGCMFunctionParameterType enmType)
|
---|
| 463 | {
|
---|
| 464 | switch (enmType)
|
---|
| 465 | {
|
---|
| 466 | case VMMDevHGCMParmType_LinAddr_Locked_In:
|
---|
| 467 | return VMMDevHGCMParmType_LinAddr_In;
|
---|
| 468 | case VMMDevHGCMParmType_LinAddr_Locked_Out:
|
---|
| 469 | return VMMDevHGCMParmType_LinAddr_Out;
|
---|
| 470 | case VMMDevHGCMParmType_LinAddr_Locked:
|
---|
| 471 | return VMMDevHGCMParmType_LinAddr;
|
---|
| 472 | default:
|
---|
| 473 | return enmType;
|
---|
| 474 | }
|
---|
| 475 | }
|
---|
| 476 |
|
---|
[21489] | 477 |
|
---|
[21464] | 478 | /**
|
---|
| 479 | * Translates linear address types to page list direction flags.
|
---|
| 480 | *
|
---|
| 481 | * @returns page list flags.
|
---|
| 482 | * @param enmType The type.
|
---|
| 483 | */
|
---|
| 484 | static uint32_t vbglR0HGCMInternalLinAddrTypeToPageListFlags(HGCMFunctionParameterType enmType)
|
---|
| 485 | {
|
---|
| 486 | switch (enmType)
|
---|
| 487 | {
|
---|
| 488 | case VMMDevHGCMParmType_LinAddr_In:
|
---|
| 489 | case VMMDevHGCMParmType_LinAddr_Locked_In:
|
---|
[21487] | 490 | return VBOX_HGCM_F_PARM_DIRECTION_TO_HOST;
|
---|
[21464] | 491 |
|
---|
| 492 | case VMMDevHGCMParmType_LinAddr_Out:
|
---|
| 493 | case VMMDevHGCMParmType_LinAddr_Locked_Out:
|
---|
[21487] | 494 | return VBOX_HGCM_F_PARM_DIRECTION_FROM_HOST;
|
---|
[21464] | 495 |
|
---|
[77728] | 496 | default: AssertFailed(); RT_FALL_THRU();
|
---|
[21464] | 497 | case VMMDevHGCMParmType_LinAddr:
|
---|
| 498 | case VMMDevHGCMParmType_LinAddr_Locked:
|
---|
| 499 | return VBOX_HGCM_F_PARM_DIRECTION_BOTH;
|
---|
| 500 | }
|
---|
| 501 | }
|
---|
| 502 |
|
---|
| 503 |
|
---|
| 504 | /**
|
---|
| 505 | * Initializes the call request that we're sending to the host.
|
---|
| 506 | *
|
---|
| 507 | * @returns VBox status code.
|
---|
| 508 | *
|
---|
| 509 | * @param pCallInfo The call info.
|
---|
| 510 | * @param cbCallInfo The size of the call info structure.
|
---|
[70873] | 511 | * @param fRequestor VMMDEV_REQUESTOR_XXX.
|
---|
[21464] | 512 | * @param fIsUser Is it a user request or kernel request.
|
---|
| 513 | * @param pcbExtra Where to return the extra request space needed for
|
---|
| 514 | * physical page lists.
|
---|
| 515 | */
|
---|
[68550] | 516 | static void vbglR0HGCMInternalInitCall(VMMDevHGCMCall *pHGCMCall, PCVBGLIOCHGCMCALL pCallInfo,
|
---|
[70873] | 517 | uint32_t cbCallInfo, uint32_t fRequestor, bool fIsUser, struct VbglR0ParmInfo *pParmInfo)
|
---|
[21464] | 518 | {
|
---|
[68550] | 519 | HGCMFunctionParameter const *pSrcParm = VBGL_HGCM_GET_CALL_PARMS(pCallInfo);
|
---|
[21464] | 520 | HGCMFunctionParameter *pDstParm = VMMDEV_HGCM_CALL_PARMS(pHGCMCall);
|
---|
[68550] | 521 | uint32_t const cParms = pCallInfo->cParms;
|
---|
[58183] | 522 | uint32_t offExtra = (uint32_t)((uintptr_t)(pDstParm + cParms) - (uintptr_t)pHGCMCall);
|
---|
[21464] | 523 | uint32_t iLockBuf = 0;
|
---|
| 524 | uint32_t iParm;
|
---|
[62842] | 525 | RT_NOREF1(cbCallInfo);
|
---|
| 526 | #ifndef USE_BOUNCE_BUFFERS
|
---|
| 527 | RT_NOREF1(fIsUser);
|
---|
| 528 | #endif
|
---|
[21464] | 529 |
|
---|
| 530 | /*
|
---|
| 531 | * The call request headers.
|
---|
| 532 | */
|
---|
[70873] | 533 | pHGCMCall->header.header.fRequestor = !fIsUser || (fRequestor & VMMDEV_REQUESTOR_USERMODE) ? fRequestor
|
---|
| 534 | : VMMDEV_REQUESTOR_USERMODE | VMMDEV_REQUESTOR_USR_NOT_GIVEN
|
---|
| 535 | | VMMDEV_REQUESTOR_TRUST_NOT_GIVEN | VMMDEV_REQUESTOR_CON_DONT_KNOW;
|
---|
| 536 |
|
---|
[21464] | 537 | pHGCMCall->header.fu32Flags = 0;
|
---|
| 538 | pHGCMCall->header.result = VINF_SUCCESS;
|
---|
| 539 |
|
---|
| 540 | pHGCMCall->u32ClientID = pCallInfo->u32ClientID;
|
---|
| 541 | pHGCMCall->u32Function = pCallInfo->u32Function;
|
---|
| 542 | pHGCMCall->cParms = cParms;
|
---|
| 543 |
|
---|
| 544 | /*
|
---|
| 545 | * The parameters.
|
---|
| 546 | */
|
---|
[68550] | 547 | for (iParm = 0; iParm < cParms; iParm++, pSrcParm++, pDstParm++)
|
---|
[21464] | 548 | {
|
---|
| 549 | switch (pSrcParm->type)
|
---|
| 550 | {
|
---|
| 551 | case VMMDevHGCMParmType_32bit:
|
---|
| 552 | case VMMDevHGCMParmType_64bit:
|
---|
| 553 | *pDstParm = *pSrcParm;
|
---|
| 554 | break;
|
---|
| 555 |
|
---|
| 556 | case VMMDevHGCMParmType_PageList:
|
---|
[76196] | 557 | case VMMDevHGCMParmType_ContiguousPageList:
|
---|
| 558 | pDstParm->type = pSrcParm->type;
|
---|
[21464] | 559 | pDstParm->u.PageList.size = pSrcParm->u.PageList.size;
|
---|
| 560 | if (pSrcParm->u.PageList.size)
|
---|
| 561 | {
|
---|
| 562 | HGCMPageListInfo const *pSrcPgLst = (HGCMPageListInfo *)((uint8_t *)pCallInfo + pSrcParm->u.PageList.offset);
|
---|
| 563 | HGCMPageListInfo *pDstPgLst = (HGCMPageListInfo *)((uint8_t *)pHGCMCall + offExtra);
|
---|
| 564 | uint32_t const cPages = pSrcPgLst->cPages;
|
---|
| 565 | uint32_t iPage;
|
---|
| 566 |
|
---|
| 567 | pDstParm->u.PageList.offset = offExtra;
|
---|
| 568 | pDstPgLst->flags = pSrcPgLst->flags;
|
---|
| 569 | pDstPgLst->offFirstPage = pSrcPgLst->offFirstPage;
|
---|
[75126] | 570 | pDstPgLst->cPages = (uint16_t)cPages;
|
---|
[21464] | 571 | for (iPage = 0; iPage < cPages; iPage++)
|
---|
| 572 | pDstPgLst->aPages[iPage] = pSrcPgLst->aPages[iPage];
|
---|
| 573 |
|
---|
[73097] | 574 | offExtra += RT_UOFFSETOF_DYN(HGCMPageListInfo, aPages[cPages]);
|
---|
[21464] | 575 | }
|
---|
| 576 | else
|
---|
[75548] | 577 | pDstParm->u.PageList.offset = 0; /** @todo will fail on the host side now */
|
---|
[21464] | 578 | break;
|
---|
| 579 |
|
---|
[75548] | 580 | case VMMDevHGCMParmType_Embedded:
|
---|
| 581 | {
|
---|
| 582 | uint32_t const cb = pSrcParm->u.Embedded.cbData;
|
---|
| 583 | pDstParm->type = VMMDevHGCMParmType_Embedded;
|
---|
| 584 | pDstParm->u.Embedded.cbData = cb;
|
---|
| 585 | pDstParm->u.Embedded.offData = offExtra;
|
---|
| 586 | if (cb > 0)
|
---|
| 587 | {
|
---|
| 588 | uint8_t *pbDst = (uint8_t *)pHGCMCall + offExtra;
|
---|
| 589 | if (pSrcParm->u.Embedded.fFlags & VBOX_HGCM_F_PARM_DIRECTION_TO_HOST)
|
---|
| 590 | {
|
---|
| 591 | memcpy(pbDst, (uint8_t const *)pCallInfo + pSrcParm->u.Embedded.offData, cb);
|
---|
| 592 | if (RT_ALIGN(cb, 8) != cb)
|
---|
| 593 | memset(pbDst + cb, 0, RT_ALIGN(cb, 8) - cb);
|
---|
| 594 | }
|
---|
| 595 | else
|
---|
| 596 | RT_BZERO(pbDst, RT_ALIGN(cb, 8));
|
---|
| 597 | offExtra += RT_ALIGN(cb, 8);
|
---|
| 598 | }
|
---|
| 599 | break;
|
---|
| 600 | }
|
---|
| 601 |
|
---|
[21464] | 602 | case VMMDevHGCMParmType_LinAddr_Locked_In:
|
---|
| 603 | case VMMDevHGCMParmType_LinAddr_Locked_Out:
|
---|
| 604 | case VMMDevHGCMParmType_LinAddr_Locked:
|
---|
[40901] | 605 | if (!VBGLR0_CAN_USE_PHYS_PAGE_LIST(/*a_fLocked =*/ true))
|
---|
[21464] | 606 | {
|
---|
| 607 | *pDstParm = *pSrcParm;
|
---|
[21577] | 608 | pDstParm->type = vbglR0HGCMInternalConvertLinAddrType(pSrcParm->type);
|
---|
[21464] | 609 | break;
|
---|
| 610 | }
|
---|
[69046] | 611 | RT_FALL_THRU();
|
---|
[21464] | 612 |
|
---|
| 613 | case VMMDevHGCMParmType_LinAddr_In:
|
---|
| 614 | case VMMDevHGCMParmType_LinAddr_Out:
|
---|
| 615 | case VMMDevHGCMParmType_LinAddr:
|
---|
| 616 | if (pSrcParm->u.Pointer.size != 0)
|
---|
| 617 | {
|
---|
[23610] | 618 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21487] | 619 | void *pvSmallBuf = pParmInfo->aLockBufs[iLockBuf].pvSmallBuf;
|
---|
| 620 | #endif
|
---|
| 621 | RTR0MEMOBJ hObj = pParmInfo->aLockBufs[iLockBuf].hObj;
|
---|
[21464] | 622 | Assert(iParm == pParmInfo->aLockBufs[iLockBuf].iParm);
|
---|
| 623 |
|
---|
[40901] | 624 | if (VBGLR0_CAN_USE_PHYS_PAGE_LIST(/*a_fLocked =*/ false))
|
---|
[21464] | 625 | {
|
---|
| 626 | HGCMPageListInfo *pDstPgLst = (HGCMPageListInfo *)((uint8_t *)pHGCMCall + offExtra);
|
---|
| 627 | size_t const cPages = RTR0MemObjSize(hObj) >> PAGE_SHIFT;
|
---|
| 628 | size_t iPage;
|
---|
| 629 |
|
---|
| 630 | pDstParm->type = VMMDevHGCMParmType_PageList;
|
---|
| 631 | pDstParm->u.PageList.size = pSrcParm->u.Pointer.size;
|
---|
| 632 | pDstParm->u.PageList.offset = offExtra;
|
---|
| 633 | pDstPgLst->flags = vbglR0HGCMInternalLinAddrTypeToPageListFlags(pSrcParm->type);
|
---|
[23610] | 634 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21464] | 635 | if (fIsUser)
|
---|
[21487] | 636 | pDstPgLst->offFirstPage = (uintptr_t)pvSmallBuf & PAGE_OFFSET_MASK;
|
---|
[21464] | 637 | else
|
---|
| 638 | #endif
|
---|
[75126] | 639 | pDstPgLst->offFirstPage = (uint16_t)(pSrcParm->u.Pointer.u.linearAddr & PAGE_OFFSET_MASK);
|
---|
| 640 | pDstPgLst->cPages = (uint16_t)cPages; Assert(pDstPgLst->cPages == cPages);
|
---|
[21464] | 641 | for (iPage = 0; iPage < cPages; iPage++)
|
---|
| 642 | {
|
---|
| 643 | pDstPgLst->aPages[iPage] = RTR0MemObjGetPagePhysAddr(hObj, iPage);
|
---|
| 644 | Assert(pDstPgLst->aPages[iPage] != NIL_RTHCPHYS);
|
---|
| 645 | }
|
---|
| 646 |
|
---|
[73097] | 647 | offExtra += RT_UOFFSETOF_DYN(HGCMPageListInfo, aPages[cPages]);
|
---|
[21464] | 648 | }
|
---|
| 649 | else
|
---|
| 650 | {
|
---|
| 651 | pDstParm->type = vbglR0HGCMInternalConvertLinAddrType(pSrcParm->type);
|
---|
| 652 | pDstParm->u.Pointer.size = pSrcParm->u.Pointer.size;
|
---|
[23610] | 653 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21464] | 654 | if (fIsUser)
|
---|
[21487] | 655 | pDstParm->u.Pointer.u.linearAddr = pvSmallBuf
|
---|
| 656 | ? (uintptr_t)pvSmallBuf
|
---|
| 657 | : (uintptr_t)RTR0MemObjAddress(hObj);
|
---|
[21464] | 658 | else
|
---|
| 659 | #endif
|
---|
| 660 | pDstParm->u.Pointer.u.linearAddr = pSrcParm->u.Pointer.u.linearAddr;
|
---|
| 661 | }
|
---|
| 662 | iLockBuf++;
|
---|
| 663 | }
|
---|
| 664 | else
|
---|
| 665 | {
|
---|
| 666 | pDstParm->type = vbglR0HGCMInternalConvertLinAddrType(pSrcParm->type);
|
---|
| 667 | pDstParm->u.Pointer.size = 0;
|
---|
| 668 | pDstParm->u.Pointer.u.linearAddr = 0;
|
---|
| 669 | }
|
---|
| 670 | break;
|
---|
| 671 |
|
---|
| 672 | default:
|
---|
| 673 | AssertFailed();
|
---|
| 674 | pDstParm->type = VMMDevHGCMParmType_Invalid;
|
---|
| 675 | break;
|
---|
| 676 | }
|
---|
| 677 | }
|
---|
| 678 | }
|
---|
| 679 |
|
---|
| 680 |
|
---|
| 681 | /**
|
---|
| 682 | * Performs the call and completion wait.
|
---|
| 683 | *
|
---|
| 684 | * @returns VBox status code of this operation, not necessarily the call.
|
---|
| 685 | *
|
---|
| 686 | * @param pHGCMCall The HGCM call info.
|
---|
| 687 | * @param pfnAsyncCallback The async callback that will wait for the call
|
---|
| 688 | * to complete.
|
---|
| 689 | * @param pvAsyncData Argument for the callback.
|
---|
| 690 | * @param u32AsyncData Argument for the callback.
|
---|
[21506] | 691 | * @param pfLeakIt Where to return the leak it / free it,
|
---|
| 692 | * indicator. Cancellation fun.
|
---|
[21464] | 693 | */
|
---|
[21506] | 694 | static int vbglR0HGCMInternalDoCall(VMMDevHGCMCall *pHGCMCall, PFNVBGLHGCMCALLBACK pfnAsyncCallback,
|
---|
| 695 | void *pvAsyncData, uint32_t u32AsyncData, bool *pfLeakIt)
|
---|
[21464] | 696 | {
|
---|
| 697 | int rc;
|
---|
| 698 |
|
---|
[68654] | 699 | Log(("calling VbglR0GRPerform\n"));
|
---|
| 700 | rc = VbglR0GRPerform(&pHGCMCall->header.header);
|
---|
| 701 | Log(("VbglR0GRPerform rc = %Rrc (header rc=%d)\n", rc, pHGCMCall->header.result));
|
---|
[21464] | 702 |
|
---|
| 703 | /*
|
---|
| 704 | * If the call failed, but as a result of the request itself, then pretend
|
---|
| 705 | * success. Upper layers will interpret the result code in the packet.
|
---|
| 706 | */
|
---|
| 707 | if ( RT_FAILURE(rc)
|
---|
| 708 | && rc == pHGCMCall->header.result)
|
---|
| 709 | {
|
---|
| 710 | Assert(pHGCMCall->header.fu32Flags & VBOX_HGCM_REQ_DONE);
|
---|
| 711 | rc = VINF_SUCCESS;
|
---|
| 712 | }
|
---|
| 713 |
|
---|
| 714 | /*
|
---|
| 715 | * Check if host decides to process the request asynchronously,
|
---|
| 716 | * if so, we wait for it to complete using the caller supplied callback.
|
---|
| 717 | */
|
---|
[21506] | 718 | *pfLeakIt = false;
|
---|
| 719 | if (rc == VINF_HGCM_ASYNC_EXECUTE)
|
---|
[21464] | 720 | {
|
---|
| 721 | Log(("Processing HGCM call asynchronously\n"));
|
---|
[21506] | 722 | rc = pfnAsyncCallback(&pHGCMCall->header, pvAsyncData, u32AsyncData);
|
---|
| 723 | if (pHGCMCall->header.fu32Flags & VBOX_HGCM_REQ_DONE)
|
---|
[21464] | 724 | {
|
---|
[21506] | 725 | Assert(!(pHGCMCall->header.fu32Flags & VBOX_HGCM_REQ_CANCELLED));
|
---|
| 726 | rc = VINF_SUCCESS;
|
---|
[21464] | 727 | }
|
---|
[21506] | 728 | else
|
---|
| 729 | {
|
---|
| 730 | /*
|
---|
| 731 | * The request didn't complete in time or the call was interrupted,
|
---|
| 732 | * the RC from the callback indicates which. Try cancel the request.
|
---|
| 733 | *
|
---|
| 734 | * This is a bit messy because we're racing request completion. Sorry.
|
---|
| 735 | */
|
---|
| 736 | /** @todo It would be nice if we could use the waiter callback to do further
|
---|
| 737 | * waiting in case of a completion race. If it wasn't for WINNT having its own
|
---|
| 738 | * version of all that stuff, I would've done it already. */
|
---|
| 739 | VMMDevHGCMCancel2 *pCancelReq;
|
---|
[68654] | 740 | int rc2 = VbglR0GRAlloc((VMMDevRequestHeader **)&pCancelReq, sizeof(*pCancelReq), VMMDevReq_HGCMCancel2);
|
---|
[21506] | 741 | if (RT_SUCCESS(rc2))
|
---|
| 742 | {
|
---|
[68654] | 743 | pCancelReq->physReqToCancel = VbglR0PhysHeapGetPhysAddr(pHGCMCall);
|
---|
| 744 | rc2 = VbglR0GRPerform(&pCancelReq->header);
|
---|
| 745 | VbglR0GRFree(&pCancelReq->header);
|
---|
[21506] | 746 | }
|
---|
| 747 | #if 1 /** @todo ADDVER: Remove this on next minor version change. */
|
---|
| 748 | if (rc2 == VERR_NOT_IMPLEMENTED)
|
---|
| 749 | {
|
---|
| 750 | /* host is too old, or we're out of heap. */
|
---|
| 751 | pHGCMCall->header.fu32Flags |= VBOX_HGCM_REQ_CANCELLED;
|
---|
| 752 | pHGCMCall->header.header.requestType = VMMDevReq_HGCMCancel;
|
---|
[68654] | 753 | rc2 = VbglR0GRPerform(&pHGCMCall->header.header);
|
---|
[21506] | 754 | if (rc2 == VERR_INVALID_PARAMETER)
|
---|
| 755 | rc2 = VERR_NOT_FOUND;
|
---|
| 756 | else if (RT_SUCCESS(rc))
|
---|
| 757 | RTThreadSleep(1);
|
---|
| 758 | }
|
---|
| 759 | #endif
|
---|
| 760 | if (RT_SUCCESS(rc)) rc = VERR_INTERRUPTED; /** @todo weed this out from the WINNT VBoxGuest code. */
|
---|
| 761 | if (RT_SUCCESS(rc2))
|
---|
| 762 | {
|
---|
| 763 | Log(("vbglR0HGCMInternalDoCall: successfully cancelled\n"));
|
---|
| 764 | pHGCMCall->header.fu32Flags |= VBOX_HGCM_REQ_CANCELLED;
|
---|
| 765 | }
|
---|
| 766 | else
|
---|
| 767 | {
|
---|
| 768 | /*
|
---|
| 769 | * Wait for a bit while the host (hopefully) completes it.
|
---|
| 770 | */
|
---|
| 771 | uint64_t u64Start = RTTimeSystemMilliTS();
|
---|
| 772 | uint32_t cMilliesToWait = rc2 == VERR_NOT_FOUND || rc2 == VERR_SEM_DESTROYED ? 500 : 2000;
|
---|
| 773 | uint64_t cElapsed = 0;
|
---|
| 774 | if (rc2 != VERR_NOT_FOUND)
|
---|
[32654] | 775 | {
|
---|
| 776 | static unsigned s_cErrors = 0;
|
---|
| 777 | if (s_cErrors++ < 32)
|
---|
| 778 | LogRel(("vbglR0HGCMInternalDoCall: Failed to cancel the HGCM call on %Rrc: rc2=%Rrc\n", rc, rc2));
|
---|
| 779 | }
|
---|
[21506] | 780 | else
|
---|
| 781 | Log(("vbglR0HGCMInternalDoCall: Cancel race rc=%Rrc rc2=%Rrc\n", rc, rc2));
|
---|
| 782 |
|
---|
| 783 | do
|
---|
| 784 | {
|
---|
| 785 | ASMCompilerBarrier(); /* paranoia */
|
---|
| 786 | if (pHGCMCall->header.fu32Flags & VBOX_HGCM_REQ_DONE)
|
---|
| 787 | break;
|
---|
| 788 | RTThreadSleep(1);
|
---|
| 789 | cElapsed = RTTimeSystemMilliTS() - u64Start;
|
---|
| 790 | } while (cElapsed < cMilliesToWait);
|
---|
| 791 |
|
---|
| 792 | ASMCompilerBarrier(); /* paranoia^2 */
|
---|
| 793 | if (pHGCMCall->header.fu32Flags & VBOX_HGCM_REQ_DONE)
|
---|
| 794 | rc = VINF_SUCCESS;
|
---|
| 795 | else
|
---|
| 796 | {
|
---|
| 797 | LogRel(("vbglR0HGCMInternalDoCall: Leaking %u bytes. Pending call to %u with %u parms. (rc2=%Rrc)\n",
|
---|
| 798 | pHGCMCall->header.header.size, pHGCMCall->u32Function, pHGCMCall->cParms, rc2));
|
---|
| 799 | *pfLeakIt = true;
|
---|
| 800 | }
|
---|
| 801 | Log(("vbglR0HGCMInternalDoCall: Cancel race ended with rc=%Rrc (rc2=%Rrc) after %llu ms\n", rc, rc2, cElapsed));
|
---|
| 802 | }
|
---|
| 803 | }
|
---|
[21464] | 804 | }
|
---|
[21487] | 805 |
|
---|
[21506] | 806 | Log(("GstHGCMCall: rc=%Rrc result=%Rrc fu32Flags=%#x fLeakIt=%d\n",
|
---|
| 807 | rc, pHGCMCall->header.result, pHGCMCall->header.fu32Flags, *pfLeakIt));
|
---|
[21464] | 808 | return rc;
|
---|
| 809 | }
|
---|
| 810 |
|
---|
| 811 |
|
---|
| 812 | /**
|
---|
| 813 | * Copies the result of the call back to the caller info structure and user
|
---|
| 814 | * buffers (if using bounce buffers).
|
---|
| 815 | *
|
---|
| 816 | * @returns rc, unless RTR0MemUserCopyTo fails.
|
---|
| 817 | * @param pCallInfo Call info structure to update.
|
---|
[75548] | 818 | * @param cbCallInfo The size of the client request.
|
---|
[21464] | 819 | * @param pHGCMCall HGCM call request.
|
---|
[75548] | 820 | * @param cbHGCMCall The size of the HGCM call request.
|
---|
[33540] | 821 | * @param pParmInfo Parameter locking/buffering info.
|
---|
[21464] | 822 | * @param fIsUser Is it a user (true) or kernel request.
|
---|
| 823 | * @param rc The current result code. Passed along to
|
---|
| 824 | * preserve informational status codes.
|
---|
| 825 | */
|
---|
[75548] | 826 | static int vbglR0HGCMInternalCopyBackResult(PVBGLIOCHGCMCALL pCallInfo, uint32_t cbCallInfo,
|
---|
| 827 | VMMDevHGCMCall const *pHGCMCall, uint32_t cbHGCMCall,
|
---|
[21464] | 828 | struct VbglR0ParmInfo *pParmInfo, bool fIsUser, int rc)
|
---|
| 829 | {
|
---|
| 830 | HGCMFunctionParameter const *pSrcParm = VMMDEV_HGCM_CALL_PARMS(pHGCMCall);
|
---|
[68550] | 831 | HGCMFunctionParameter *pDstParm = VBGL_HGCM_GET_CALL_PARMS(pCallInfo);
|
---|
| 832 | uint32_t const cParms = pCallInfo->cParms;
|
---|
[23610] | 833 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21464] | 834 | uint32_t iLockBuf = 0;
|
---|
| 835 | #endif
|
---|
| 836 | uint32_t iParm;
|
---|
[62842] | 837 | RT_NOREF1(pParmInfo);
|
---|
| 838 | #ifndef USE_BOUNCE_BUFFERS
|
---|
| 839 | RT_NOREF1(fIsUser);
|
---|
| 840 | #endif
|
---|
[21464] | 841 |
|
---|
| 842 | /*
|
---|
| 843 | * The call result.
|
---|
| 844 | */
|
---|
[68550] | 845 | pCallInfo->Hdr.rc = pHGCMCall->header.result;
|
---|
[21464] | 846 |
|
---|
| 847 | /*
|
---|
| 848 | * Copy back parameters.
|
---|
| 849 | */
|
---|
[75548] | 850 | /** @todo This is assuming user data (pDstParm) is buffered. Not true
|
---|
| 851 | * on OS/2, though I'm not sure we care... */
|
---|
[29680] | 852 | for (iParm = 0; iParm < cParms; iParm++, pSrcParm++, pDstParm++)
|
---|
[21464] | 853 | {
|
---|
| 854 | switch (pDstParm->type)
|
---|
| 855 | {
|
---|
| 856 | case VMMDevHGCMParmType_32bit:
|
---|
| 857 | case VMMDevHGCMParmType_64bit:
|
---|
| 858 | *pDstParm = *pSrcParm;
|
---|
| 859 | break;
|
---|
| 860 |
|
---|
| 861 | case VMMDevHGCMParmType_PageList:
|
---|
[76196] | 862 | case VMMDevHGCMParmType_ContiguousPageList:
|
---|
[21464] | 863 | pDstParm->u.PageList.size = pSrcParm->u.PageList.size;
|
---|
| 864 | break;
|
---|
| 865 |
|
---|
[75548] | 866 | case VMMDevHGCMParmType_Embedded:
|
---|
| 867 | {
|
---|
[75753] | 868 | uint32_t const cbDst = pDstParm->u.Embedded.cbData;
|
---|
| 869 | uint32_t cbSrc;
|
---|
| 870 | pDstParm->u.Embedded.cbData = cbSrc = pSrcParm->u.Embedded.cbData;
|
---|
| 871 | if ( cbSrc > 0
|
---|
[75548] | 872 | && (pDstParm->u.Embedded.fFlags & VBOX_HGCM_F_PARM_DIRECTION_FROM_HOST))
|
---|
| 873 | {
|
---|
| 874 | uint32_t const offDst = pDstParm->u.Embedded.offData;
|
---|
[75753] | 875 | uint32_t const offSrc = pSrcParm->u.Embedded.offData;
|
---|
| 876 |
|
---|
[75548] | 877 | AssertReturn(offDst < cbCallInfo, VERR_INTERNAL_ERROR_2);
|
---|
| 878 | AssertReturn(offDst >= sizeof(*pCallInfo) + cParms * sizeof(*pDstParm), VERR_INTERNAL_ERROR_2);
|
---|
[75753] | 879 | AssertReturn(cbDst <= cbCallInfo - offDst , VERR_INTERNAL_ERROR_2);
|
---|
| 880 |
|
---|
[75548] | 881 | AssertReturn(offSrc < cbCallInfo, VERR_INTERNAL_ERROR_2);
|
---|
| 882 | AssertReturn(offSrc >= sizeof(*pHGCMCall) + cParms * sizeof(*pSrcParm), VERR_INTERNAL_ERROR_2);
|
---|
[75753] | 883 | if (cbSrc <= cbHGCMCall - offSrc)
|
---|
| 884 | { /* likely */ }
|
---|
| 885 | else
|
---|
| 886 | {
|
---|
| 887 | /* Special case: Buffer overflow w/ correct size given. */
|
---|
| 888 | AssertReturn(RT_FAILURE_NP(rc), VERR_INTERNAL_ERROR_2);
|
---|
| 889 | cbSrc = cbHGCMCall - offSrc;
|
---|
| 890 | }
|
---|
| 891 | memcpy((uint8_t *)pCallInfo + offDst, (uint8_t const *)pHGCMCall + offSrc, RT_MIN(cbSrc, cbDst));
|
---|
[75548] | 892 | }
|
---|
| 893 | break;
|
---|
| 894 | }
|
---|
| 895 |
|
---|
[21464] | 896 | case VMMDevHGCMParmType_LinAddr_Locked_In:
|
---|
| 897 | case VMMDevHGCMParmType_LinAddr_In:
|
---|
[23610] | 898 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21464] | 899 | if ( fIsUser
|
---|
| 900 | && iLockBuf < pParmInfo->cLockBufs
|
---|
| 901 | && iParm == pParmInfo->aLockBufs[iLockBuf].iParm)
|
---|
| 902 | iLockBuf++;
|
---|
| 903 | #endif
|
---|
| 904 | pDstParm->u.Pointer.size = pSrcParm->u.Pointer.size;
|
---|
| 905 | break;
|
---|
| 906 |
|
---|
| 907 | case VMMDevHGCMParmType_LinAddr_Locked_Out:
|
---|
| 908 | case VMMDevHGCMParmType_LinAddr_Locked:
|
---|
[40901] | 909 | if (!VBGLR0_CAN_USE_PHYS_PAGE_LIST(/*a_fLocked =*/ true))
|
---|
[21464] | 910 | {
|
---|
| 911 | pDstParm->u.Pointer.size = pSrcParm->u.Pointer.size;
|
---|
| 912 | break;
|
---|
| 913 | }
|
---|
[69046] | 914 | RT_FALL_THRU();
|
---|
[21464] | 915 |
|
---|
| 916 | case VMMDevHGCMParmType_LinAddr_Out:
|
---|
| 917 | case VMMDevHGCMParmType_LinAddr:
|
---|
| 918 | {
|
---|
[23610] | 919 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21464] | 920 | if (fIsUser)
|
---|
| 921 | {
|
---|
[21487] | 922 | size_t cbOut = RT_MIN(pSrcParm->u.Pointer.size, pDstParm->u.Pointer.size);
|
---|
| 923 | if (cbOut)
|
---|
[21464] | 924 | {
|
---|
[31720] | 925 | int rc2;
|
---|
[21464] | 926 | Assert(pParmInfo->aLockBufs[iLockBuf].iParm == iParm);
|
---|
[31720] | 927 | rc2 = RTR0MemUserCopyTo((RTR3PTR)pDstParm->u.Pointer.u.linearAddr,
|
---|
| 928 | pParmInfo->aLockBufs[iLockBuf].pvSmallBuf
|
---|
| 929 | ? pParmInfo->aLockBufs[iLockBuf].pvSmallBuf
|
---|
| 930 | : RTR0MemObjAddress(pParmInfo->aLockBufs[iLockBuf].hObj),
|
---|
| 931 | cbOut);
|
---|
[21464] | 932 | if (RT_FAILURE(rc2))
|
---|
| 933 | return rc2;
|
---|
| 934 | iLockBuf++;
|
---|
| 935 | }
|
---|
| 936 | else if ( iLockBuf < pParmInfo->cLockBufs
|
---|
| 937 | && iParm == pParmInfo->aLockBufs[iLockBuf].iParm)
|
---|
| 938 | iLockBuf++;
|
---|
| 939 | }
|
---|
| 940 | #endif
|
---|
| 941 | pDstParm->u.Pointer.size = pSrcParm->u.Pointer.size;
|
---|
| 942 | break;
|
---|
| 943 | }
|
---|
| 944 |
|
---|
| 945 | default:
|
---|
| 946 | AssertFailed();
|
---|
| 947 | rc = VERR_INTERNAL_ERROR_4;
|
---|
| 948 | break;
|
---|
| 949 | }
|
---|
| 950 | }
|
---|
| 951 |
|
---|
[23610] | 952 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21464] | 953 | Assert(!fIsUser || pParmInfo->cLockBufs == iLockBuf);
|
---|
| 954 | #endif
|
---|
| 955 | return rc;
|
---|
| 956 | }
|
---|
| 957 |
|
---|
[21489] | 958 |
|
---|
[70873] | 959 | DECLR0VBGL(int) VbglR0HGCMInternalCall(PVBGLIOCHGCMCALL pCallInfo, uint32_t cbCallInfo, uint32_t fFlags, uint32_t fRequestor,
|
---|
[21506] | 960 | PFNVBGLHGCMCALLBACK pfnAsyncCallback, void *pvAsyncData, uint32_t u32AsyncData)
|
---|
[21464] | 961 | {
|
---|
| 962 | bool fIsUser = (fFlags & VBGLR0_HGCMCALL_F_MODE_MASK) == VBGLR0_HGCMCALL_F_USER;
|
---|
| 963 | struct VbglR0ParmInfo ParmInfo;
|
---|
| 964 | size_t cbExtra;
|
---|
| 965 | int rc;
|
---|
| 966 |
|
---|
| 967 | /*
|
---|
| 968 | * Basic validation.
|
---|
| 969 | */
|
---|
[21489] | 970 | AssertMsgReturn( !pCallInfo
|
---|
| 971 | || !pfnAsyncCallback
|
---|
| 972 | || pCallInfo->cParms > VBOX_HGCM_MAX_PARMS
|
---|
| 973 | || !(fFlags & ~VBGLR0_HGCMCALL_F_MODE_MASK),
|
---|
[21464] | 974 | ("pCallInfo=%p pfnAsyncCallback=%p fFlags=%#x\n", pCallInfo, pfnAsyncCallback, fFlags),
|
---|
| 975 | VERR_INVALID_PARAMETER);
|
---|
[68550] | 976 | AssertReturn( cbCallInfo >= sizeof(VBGLIOCHGCMCALL)
|
---|
[21464] | 977 | || cbCallInfo >= pCallInfo->cParms * sizeof(HGCMFunctionParameter),
|
---|
| 978 | VERR_INVALID_PARAMETER);
|
---|
| 979 |
|
---|
[21487] | 980 | Log(("GstHGCMCall: u32ClientID=%#x u32Function=%u cParms=%u cbCallInfo=%#x fFlags=%#x\n",
|
---|
| 981 | pCallInfo->u32ClientID, pCallInfo->u32ClientID, pCallInfo->u32Function, pCallInfo->cParms, cbCallInfo, fFlags));
|
---|
[21464] | 982 |
|
---|
| 983 | /*
|
---|
[21487] | 984 | * Validate, lock and buffer the parameters for the call.
|
---|
| 985 | * This will calculate the amount of extra space for physical page list.
|
---|
[21464] | 986 | */
|
---|
| 987 | rc = vbglR0HGCMInternalPreprocessCall(pCallInfo, cbCallInfo, fIsUser, &ParmInfo, &cbExtra);
|
---|
| 988 | if (RT_SUCCESS(rc))
|
---|
| 989 | {
|
---|
| 990 | /*
|
---|
| 991 | * Allocate the request buffer and recreate the call request.
|
---|
| 992 | */
|
---|
| 993 | VMMDevHGCMCall *pHGCMCall;
|
---|
[75554] | 994 | uint32_t const cbHGCMCall = sizeof(VMMDevHGCMCall) + pCallInfo->cParms * sizeof(HGCMFunctionParameter) + (uint32_t)cbExtra;
|
---|
[75548] | 995 | rc = VbglR0GRAlloc((VMMDevRequestHeader **)&pHGCMCall, cbHGCMCall, VMMDevReq_HGCMCall);
|
---|
[21464] | 996 | if (RT_SUCCESS(rc))
|
---|
| 997 | {
|
---|
[21506] | 998 | bool fLeakIt;
|
---|
[70873] | 999 | vbglR0HGCMInternalInitCall(pHGCMCall, pCallInfo, cbCallInfo, fRequestor, fIsUser, &ParmInfo);
|
---|
[21464] | 1000 |
|
---|
| 1001 | /*
|
---|
| 1002 | * Perform the call.
|
---|
| 1003 | */
|
---|
[21506] | 1004 | rc = vbglR0HGCMInternalDoCall(pHGCMCall, pfnAsyncCallback, pvAsyncData, u32AsyncData, &fLeakIt);
|
---|
[21464] | 1005 | if (RT_SUCCESS(rc))
|
---|
| 1006 | {
|
---|
| 1007 | /*
|
---|
| 1008 | * Copy back the result (parameters and buffers that changed).
|
---|
| 1009 | */
|
---|
[75548] | 1010 | rc = vbglR0HGCMInternalCopyBackResult(pCallInfo, cbCallInfo, pHGCMCall, cbHGCMCall, &ParmInfo, fIsUser, rc);
|
---|
[21464] | 1011 | }
|
---|
[26124] | 1012 | else
|
---|
[26358] | 1013 | {
|
---|
[28516] | 1014 | if ( rc != VERR_INTERRUPTED
|
---|
[28518] | 1015 | && rc != VERR_TIMEOUT)
|
---|
[32654] | 1016 | {
|
---|
| 1017 | static unsigned s_cErrors = 0;
|
---|
| 1018 | if (s_cErrors++ < 32)
|
---|
| 1019 | LogRel(("VbglR0HGCMInternalCall: vbglR0HGCMInternalDoCall failed. rc=%Rrc\n", rc));
|
---|
| 1020 | }
|
---|
[26358] | 1021 | }
|
---|
[21464] | 1022 |
|
---|
[21506] | 1023 | if (!fLeakIt)
|
---|
[68654] | 1024 | VbglR0GRFree(&pHGCMCall->header.header);
|
---|
[21464] | 1025 | }
|
---|
| 1026 | }
|
---|
[26124] | 1027 | else
|
---|
| 1028 | LogRel(("VbglR0HGCMInternalCall: vbglR0HGCMInternalPreprocessCall failed. rc=%Rrc\n", rc));
|
---|
[21464] | 1029 |
|
---|
| 1030 | /*
|
---|
[21487] | 1031 | * Release locks and free bounce buffers.
|
---|
[21464] | 1032 | */
|
---|
| 1033 | if (ParmInfo.cLockBufs)
|
---|
| 1034 | while (ParmInfo.cLockBufs-- > 0)
|
---|
[21487] | 1035 | {
|
---|
[21464] | 1036 | RTR0MemObjFree(ParmInfo.aLockBufs[ParmInfo.cLockBufs].hObj, false /*fFreeMappings*/);
|
---|
[23610] | 1037 | #ifdef USE_BOUNCE_BUFFERS
|
---|
[21487] | 1038 | RTMemTmpFree(ParmInfo.aLockBufs[ParmInfo.cLockBufs].pvSmallBuf);
|
---|
| 1039 | #endif
|
---|
| 1040 | }
|
---|
[21464] | 1041 |
|
---|
| 1042 | return rc;
|
---|
| 1043 | }
|
---|
| 1044 |
|
---|
| 1045 |
|
---|
[21489] | 1046 | #if ARCH_BITS == 64
|
---|
[70873] | 1047 | DECLR0VBGL(int) VbglR0HGCMInternalCall32(PVBGLIOCHGCMCALL pCallInfo, uint32_t cbCallInfo, uint32_t fFlags, uint32_t fRequestor,
|
---|
[21506] | 1048 | PFNVBGLHGCMCALLBACK pfnAsyncCallback, void *pvAsyncData, uint32_t u32AsyncData)
|
---|
[21464] | 1049 | {
|
---|
[68550] | 1050 | PVBGLIOCHGCMCALL pCallInfo64 = NULL;
|
---|
[26124] | 1051 | HGCMFunctionParameter *pParm64 = NULL;
|
---|
| 1052 | HGCMFunctionParameter32 *pParm32 = NULL;
|
---|
| 1053 | uint32_t cParms = 0;
|
---|
| 1054 | uint32_t iParm = 0;
|
---|
| 1055 | int rc = VINF_SUCCESS;
|
---|
[21464] | 1056 |
|
---|
| 1057 | /*
|
---|
| 1058 | * Input validation.
|
---|
| 1059 | */
|
---|
[21489] | 1060 | AssertMsgReturn( !pCallInfo
|
---|
| 1061 | || !pfnAsyncCallback
|
---|
| 1062 | || pCallInfo->cParms > VBOX_HGCM_MAX_PARMS
|
---|
| 1063 | || !(fFlags & ~VBGLR0_HGCMCALL_F_MODE_MASK),
|
---|
[21506] | 1064 | ("pCallInfo=%p pfnAsyncCallback=%p fFlags=%#x\n", pCallInfo, pfnAsyncCallback, fFlags),
|
---|
[26125] | 1065 | VERR_INVALID_PARAMETER);
|
---|
[68550] | 1066 | AssertReturn( cbCallInfo >= sizeof(VBGLIOCHGCMCALL)
|
---|
[21464] | 1067 | || cbCallInfo >= pCallInfo->cParms * sizeof(HGCMFunctionParameter32),
|
---|
[26125] | 1068 | VERR_INVALID_PARAMETER);
|
---|
[21464] | 1069 |
|
---|
[30339] | 1070 | /* This Assert does not work on Solaris/Windows 64/32 mixed mode, not sure why, skipping for now */
|
---|
| 1071 | #if !defined(RT_OS_SOLARIS) && !defined(RT_OS_WINDOWS)
|
---|
[26124] | 1072 | AssertReturn((fFlags & VBGLR0_HGCMCALL_F_MODE_MASK) == VBGLR0_HGCMCALL_F_KERNEL, VERR_WRONG_ORDER);
|
---|
| 1073 | #endif
|
---|
| 1074 |
|
---|
[21464] | 1075 | cParms = pCallInfo->cParms;
|
---|
| 1076 | Log(("VbglR0HGCMInternalCall32: cParms=%d, u32Function=%d, fFlags=%#x\n", cParms, pCallInfo->u32Function, fFlags));
|
---|
| 1077 |
|
---|
| 1078 | /*
|
---|
| 1079 | * The simple approach, allocate a temporary request and convert the parameters.
|
---|
| 1080 | */
|
---|
[68550] | 1081 | pCallInfo64 = (PVBGLIOCHGCMCALL)RTMemTmpAllocZ(sizeof(*pCallInfo64) + cParms * sizeof(HGCMFunctionParameter));
|
---|
[21464] | 1082 | if (!pCallInfo64)
|
---|
| 1083 | return VERR_NO_TMP_MEMORY;
|
---|
| 1084 |
|
---|
| 1085 | *pCallInfo64 = *pCallInfo;
|
---|
[68550] | 1086 | pParm32 = VBGL_HGCM_GET_CALL_PARMS32(pCallInfo);
|
---|
| 1087 | pParm64 = VBGL_HGCM_GET_CALL_PARMS(pCallInfo64);
|
---|
[21464] | 1088 | for (iParm = 0; iParm < cParms; iParm++, pParm32++, pParm64++)
|
---|
| 1089 | {
|
---|
| 1090 | switch (pParm32->type)
|
---|
| 1091 | {
|
---|
| 1092 | case VMMDevHGCMParmType_32bit:
|
---|
| 1093 | pParm64->type = VMMDevHGCMParmType_32bit;
|
---|
| 1094 | pParm64->u.value32 = pParm32->u.value32;
|
---|
| 1095 | break;
|
---|
| 1096 |
|
---|
| 1097 | case VMMDevHGCMParmType_64bit:
|
---|
| 1098 | pParm64->type = VMMDevHGCMParmType_64bit;
|
---|
| 1099 | pParm64->u.value64 = pParm32->u.value64;
|
---|
| 1100 | break;
|
---|
| 1101 |
|
---|
| 1102 | case VMMDevHGCMParmType_LinAddr_Out:
|
---|
| 1103 | case VMMDevHGCMParmType_LinAddr:
|
---|
| 1104 | case VMMDevHGCMParmType_LinAddr_In:
|
---|
| 1105 | pParm64->type = pParm32->type;
|
---|
| 1106 | pParm64->u.Pointer.size = pParm32->u.Pointer.size;
|
---|
| 1107 | pParm64->u.Pointer.u.linearAddr = pParm32->u.Pointer.u.linearAddr;
|
---|
| 1108 | break;
|
---|
| 1109 |
|
---|
| 1110 | default:
|
---|
| 1111 | rc = VERR_INVALID_PARAMETER;
|
---|
[26124] | 1112 | LogRel(("VbglR0HGCMInternalCall32: pParm32 type %#x invalid.\n", pParm32->type));
|
---|
[21464] | 1113 | break;
|
---|
| 1114 | }
|
---|
| 1115 | if (RT_FAILURE(rc))
|
---|
| 1116 | break;
|
---|
| 1117 | }
|
---|
| 1118 | if (RT_SUCCESS(rc))
|
---|
| 1119 | {
|
---|
| 1120 | rc = VbglR0HGCMInternalCall(pCallInfo64, sizeof(*pCallInfo64) + cParms * sizeof(HGCMFunctionParameter), fFlags,
|
---|
[70873] | 1121 | fRequestor, pfnAsyncCallback, pvAsyncData, u32AsyncData);
|
---|
[21464] | 1122 |
|
---|
[26124] | 1123 | if (RT_SUCCESS(rc))
|
---|
[21464] | 1124 | {
|
---|
[26124] | 1125 | *pCallInfo = *pCallInfo64;
|
---|
| 1126 |
|
---|
| 1127 | /*
|
---|
| 1128 | * Copy back.
|
---|
| 1129 | */
|
---|
[68550] | 1130 | pParm32 = VBGL_HGCM_GET_CALL_PARMS32(pCallInfo);
|
---|
| 1131 | pParm64 = VBGL_HGCM_GET_CALL_PARMS(pCallInfo64);
|
---|
[26124] | 1132 | for (iParm = 0; iParm < cParms; iParm++, pParm32++, pParm64++)
|
---|
[21464] | 1133 | {
|
---|
[26124] | 1134 | switch (pParm64->type)
|
---|
| 1135 | {
|
---|
| 1136 | case VMMDevHGCMParmType_32bit:
|
---|
| 1137 | pParm32->u.value32 = pParm64->u.value32;
|
---|
| 1138 | break;
|
---|
[21464] | 1139 |
|
---|
[26124] | 1140 | case VMMDevHGCMParmType_64bit:
|
---|
| 1141 | pParm32->u.value64 = pParm64->u.value64;
|
---|
| 1142 | break;
|
---|
[21464] | 1143 |
|
---|
[26124] | 1144 | case VMMDevHGCMParmType_LinAddr_Out:
|
---|
| 1145 | case VMMDevHGCMParmType_LinAddr:
|
---|
| 1146 | case VMMDevHGCMParmType_LinAddr_In:
|
---|
| 1147 | pParm32->u.Pointer.size = pParm64->u.Pointer.size;
|
---|
| 1148 | break;
|
---|
[21464] | 1149 |
|
---|
[26124] | 1150 | default:
|
---|
| 1151 | LogRel(("VbglR0HGCMInternalCall32: failed invalid pParm32 type %d\n", pParm32->type));
|
---|
| 1152 | rc = VERR_INTERNAL_ERROR_3;
|
---|
| 1153 | break;
|
---|
| 1154 | }
|
---|
[21464] | 1155 | }
|
---|
| 1156 | }
|
---|
[26124] | 1157 | else
|
---|
[32654] | 1158 | {
|
---|
| 1159 | static unsigned s_cErrors = 0;
|
---|
| 1160 | if (s_cErrors++ < 32)
|
---|
| 1161 | LogRel(("VbglR0HGCMInternalCall32: VbglR0HGCMInternalCall failed. rc=%Rrc\n", rc));
|
---|
| 1162 | }
|
---|
[21464] | 1163 | }
|
---|
[26124] | 1164 | else
|
---|
[32654] | 1165 | {
|
---|
| 1166 | static unsigned s_cErrors = 0;
|
---|
| 1167 | if (s_cErrors++ < 32)
|
---|
| 1168 | LogRel(("VbglR0HGCMInternalCall32: failed. rc=%Rrc\n", rc));
|
---|
| 1169 | }
|
---|
[21464] | 1170 |
|
---|
| 1171 | RTMemTmpFree(pCallInfo64);
|
---|
| 1172 | return rc;
|
---|
| 1173 | }
|
---|
[21489] | 1174 | #endif /* ARCH_BITS == 64 */
|
---|
[21464] | 1175 |
|
---|