[86699] | 1 | /* $Id: DBGFR0Bp.cpp 99739 2023-05-11 01:01:08Z vboxsync $ */
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| 2 | /** @file
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| 3 | * DBGF - Debugger Facility, R0 breakpoint management part.
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| 4 | */
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| 5 |
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| 6 | /*
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[98103] | 7 | * Copyright (C) 2020-2023 Oracle and/or its affiliates.
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[86699] | 8 | *
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[96407] | 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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[86699] | 26 | */
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| 27 |
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| 28 |
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| 29 | /*********************************************************************************************************************************
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| 30 | * Header Files *
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| 31 | *********************************************************************************************************************************/
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| 32 | #define LOG_GROUP LOG_GROUP_DBGF
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| 33 | #include "DBGFInternal.h"
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| 34 | #include <VBox/vmm/gvm.h>
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| 35 | #include <VBox/vmm/gvmm.h>
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| 36 | #include <VBox/vmm/vmm.h>
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| 37 |
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| 38 | #include <VBox/log.h>
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| 39 | #include <VBox/sup.h>
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| 40 | #include <iprt/asm.h>
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| 41 | #include <iprt/assert.h>
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| 42 | #include <iprt/errcore.h>
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| 43 | #include <iprt/ctype.h>
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| 44 | #include <iprt/mem.h>
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| 45 | #include <iprt/memobj.h>
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| 46 | #include <iprt/process.h>
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| 47 | #include <iprt/string.h>
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| 48 |
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| 49 | #include "dtrace/VBoxVMM.h"
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| 50 |
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| 51 |
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| 52 | /*********************************************************************************************************************************
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| 53 | * Internal Functions *
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| 54 | *********************************************************************************************************************************/
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| 55 |
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| 56 | /**
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| 57 | * Used by DBGFR0InitPerVM() to initialize the breakpoint manager.
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| 58 | *
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| 59 | * @param pGVM The global (ring-0) VM structure.
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| 60 | */
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| 61 | DECLHIDDEN(void) dbgfR0BpInit(PGVM pGVM)
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| 62 | {
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[87107] | 63 | pGVM->dbgfr0.s.hMemObjBpOwners = NIL_RTR0MEMOBJ;
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| 64 | pGVM->dbgfr0.s.hMapObjBpOwners = NIL_RTR0MEMOBJ;
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| 65 | //pGVM->dbgfr0.s.paBpOwnersR0 = NULL;
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| 66 |
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[86699] | 67 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
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| 68 | {
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| 69 | PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
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| 70 |
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| 71 | pBpChunk->hMemObj = NIL_RTR0MEMOBJ;
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| 72 | pBpChunk->hMapObj = NIL_RTR0MEMOBJ;
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| 73 | //pBpChunk->paBpBaseSharedR0 = NULL;
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| 74 | //pBpChunk->paBpBaseR0Only = NULL;
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| 75 | }
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| 76 |
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[86704] | 77 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
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| 78 | {
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| 79 | PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
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| 80 |
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| 81 | pL2Chunk->hMemObj = NIL_RTR0MEMOBJ;
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| 82 | pL2Chunk->hMapObj = NIL_RTR0MEMOBJ;
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| 83 | //pL2Chunk->paBpL2TblBaseSharedR0 = NULL;
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| 84 | }
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| 85 |
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[89912] | 86 | pGVM->dbgfr0.s.hMemObjBpLocL1 = NIL_RTR0MEMOBJ;
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| 87 | pGVM->dbgfr0.s.hMapObjBpLocL1 = NIL_RTR0MEMOBJ;
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| 88 | pGVM->dbgfr0.s.hMemObjBpLocPortIo = NIL_RTR0MEMOBJ;
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| 89 | pGVM->dbgfr0.s.hMapObjBpLocPortIo = NIL_RTR0MEMOBJ;
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| 90 | //pGVM->dbgfr0.s.paBpLocL1R0 = NULL;
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| 91 | //pGVM->dbgfr0.s.paBpLocPortIoR0 = NULL;
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| 92 | //pGVM->dbgfr0.s.fInit = false;
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[86699] | 93 | }
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| 94 |
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| 95 |
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| 96 | /**
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| 97 | * Used by DBGFR0CleanupVM to destroy the breakpoint manager.
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| 98 | *
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| 99 | * This is done during VM cleanup so that we're sure there are no active threads
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| 100 | * using the breakpoint code.
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| 101 | *
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| 102 | * @param pGVM The global (ring-0) VM structure.
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| 103 | */
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| 104 | DECLHIDDEN(void) dbgfR0BpDestroy(PGVM pGVM)
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| 105 | {
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[87107] | 106 | if (pGVM->dbgfr0.s.hMemObjBpOwners != NIL_RTR0MEMOBJ)
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| 107 | {
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| 108 | Assert(pGVM->dbgfr0.s.hMapObjBpOwners != NIL_RTR0MEMOBJ);
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| 109 | AssertPtr(pGVM->dbgfr0.s.paBpOwnersR0);
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| 110 |
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| 111 | RTR0MEMOBJ hMemObj = pGVM->dbgfr0.s.hMapObjBpOwners;
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| 112 | pGVM->dbgfr0.s.hMapObjBpOwners = NIL_RTR0MEMOBJ;
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| 113 | RTR0MemObjFree(hMemObj, true);
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| 114 |
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| 115 | hMemObj = pGVM->dbgfr0.s.hMemObjBpOwners;
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| 116 | pGVM->dbgfr0.s.hMemObjBpOwners = NIL_RTR0MEMOBJ;
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| 117 | RTR0MemObjFree(hMemObj, true);
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| 118 | }
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| 119 |
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[86699] | 120 | if (pGVM->dbgfr0.s.fInit)
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| 121 | {
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| 122 | Assert(pGVM->dbgfr0.s.hMemObjBpLocL1 != NIL_RTR0MEMOBJ);
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| 123 | AssertPtr(pGVM->dbgfr0.s.paBpLocL1R0);
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| 124 |
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| 125 | /*
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| 126 | * Free all allocated memory and ring-3 mapping objects.
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| 127 | */
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| 128 | RTR0MEMOBJ hMemObj = pGVM->dbgfr0.s.hMemObjBpLocL1;
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| 129 | pGVM->dbgfr0.s.hMemObjBpLocL1 = NIL_RTR0MEMOBJ;
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| 130 | pGVM->dbgfr0.s.paBpLocL1R0 = NULL;
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| 131 | RTR0MemObjFree(hMemObj, true);
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| 132 |
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[89912] | 133 | if (pGVM->dbgfr0.s.paBpLocPortIoR0)
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| 134 | {
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| 135 | Assert(pGVM->dbgfr0.s.hMemObjBpLocPortIo != NIL_RTR0MEMOBJ);
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| 136 | Assert(pGVM->dbgfr0.s.hMapObjBpLocPortIo != NIL_RTR0MEMOBJ);
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| 137 |
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| 138 | hMemObj = pGVM->dbgfr0.s.hMapObjBpLocPortIo;
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| 139 | pGVM->dbgfr0.s.hMapObjBpLocPortIo = NIL_RTR0MEMOBJ;
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| 140 | RTR0MemObjFree(hMemObj, true);
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| 141 |
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| 142 | hMemObj = pGVM->dbgfr0.s.hMemObjBpLocPortIo;
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| 143 | pGVM->dbgfr0.s.hMemObjBpLocPortIo = NIL_RTR0MEMOBJ;
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| 144 | pGVM->dbgfr0.s.paBpLocPortIoR0 = NULL;
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| 145 | RTR0MemObjFree(hMemObj, true);
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| 146 | }
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| 147 |
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[86699] | 148 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
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| 149 | {
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| 150 | PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
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| 151 |
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| 152 | if (pBpChunk->hMemObj != NIL_RTR0MEMOBJ)
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| 153 | {
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| 154 | Assert(pBpChunk->hMapObj != NIL_RTR0MEMOBJ);
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| 155 |
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| 156 | pBpChunk->paBpBaseSharedR0 = NULL;
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| 157 | pBpChunk->paBpBaseR0Only = NULL;
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| 158 |
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| 159 | hMemObj = pBpChunk->hMapObj;
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| 160 | pBpChunk->hMapObj = NIL_RTR0MEMOBJ;
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| 161 | RTR0MemObjFree(hMemObj, true);
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| 162 |
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| 163 | hMemObj = pBpChunk->hMemObj;
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| 164 | pBpChunk->hMemObj = NIL_RTR0MEMOBJ;
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| 165 | RTR0MemObjFree(hMemObj, true);
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| 166 | }
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| 167 | }
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| 168 |
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[86704] | 169 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
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| 170 | {
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| 171 | PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
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| 172 |
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| 173 | if (pL2Chunk->hMemObj != NIL_RTR0MEMOBJ)
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| 174 | {
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| 175 | Assert(pL2Chunk->hMapObj != NIL_RTR0MEMOBJ);
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| 176 |
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| 177 | pL2Chunk->paBpL2TblBaseSharedR0 = NULL;
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| 178 |
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| 179 | hMemObj = pL2Chunk->hMapObj;
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| 180 | pL2Chunk->hMapObj = NIL_RTR0MEMOBJ;
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| 181 | RTR0MemObjFree(hMemObj, true);
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| 182 |
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| 183 | hMemObj = pL2Chunk->hMemObj;
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| 184 | pL2Chunk->hMemObj = NIL_RTR0MEMOBJ;
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| 185 | RTR0MemObjFree(hMemObj, true);
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| 186 | }
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| 187 | }
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| 188 |
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[86699] | 189 | pGVM->dbgfr0.s.fInit = false;
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| 190 | }
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| 191 | #ifdef RT_STRICT
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| 192 | else
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| 193 | {
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| 194 | Assert(pGVM->dbgfr0.s.hMemObjBpLocL1 == NIL_RTR0MEMOBJ);
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| 195 | Assert(!pGVM->dbgfr0.s.paBpLocL1R0);
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| 196 |
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[89912] | 197 | Assert(pGVM->dbgfr0.s.hMemObjBpLocPortIo == NIL_RTR0MEMOBJ);
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| 198 | Assert(!pGVM->dbgfr0.s.paBpLocPortIoR0);
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| 199 |
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[86699] | 200 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
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| 201 | {
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| 202 | PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
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| 203 |
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| 204 | Assert(pBpChunk->hMemObj == NIL_RTR0MEMOBJ);
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| 205 | Assert(pBpChunk->hMapObj == NIL_RTR0MEMOBJ);
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| 206 | Assert(!pBpChunk->paBpBaseSharedR0);
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| 207 | Assert(!pBpChunk->paBpBaseR0Only);
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| 208 | }
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[86704] | 209 |
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| 210 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
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| 211 | {
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| 212 | PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
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| 213 |
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| 214 | Assert(pL2Chunk->hMemObj == NIL_RTR0MEMOBJ);
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| 215 | Assert(pL2Chunk->hMapObj == NIL_RTR0MEMOBJ);
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| 216 | Assert(!pL2Chunk->paBpL2TblBaseSharedR0);
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| 217 | }
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[86699] | 218 | }
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| 219 | #endif
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| 220 | }
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| 221 |
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| 222 |
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| 223 | /**
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| 224 | * Worker for DBGFR0BpInitReqHandler() that does the actual initialization.
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| 225 | *
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| 226 | * @returns VBox status code.
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| 227 | * @param pGVM The global (ring-0) VM structure.
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[86700] | 228 | * @param ppaBpLocL1R3 Where to return the ring-3 L1 lookup table address on success.
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[86699] | 229 | * @thread EMT(0)
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| 230 | */
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| 231 | static int dbgfR0BpInitWorker(PGVM pGVM, R3PTRTYPE(volatile uint32_t *) *ppaBpLocL1R3)
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| 232 | {
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| 233 | /*
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| 234 | * Figure out how much memory we need for the L1 lookup table and allocate it.
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| 235 | */
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[93554] | 236 | uint32_t const cbL1Loc = RT_ALIGN_32(UINT16_MAX * sizeof(uint32_t), HOST_PAGE_SIZE);
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[86699] | 237 |
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| 238 | RTR0MEMOBJ hMemObj;
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| 239 | int rc = RTR0MemObjAllocPage(&hMemObj, cbL1Loc, false /*fExecutable*/);
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| 240 | if (RT_FAILURE(rc))
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| 241 | return rc;
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| 242 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbL1Loc);
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| 243 |
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| 244 | /* Map it. */
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| 245 | RTR0MEMOBJ hMapObj;
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| 246 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
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| 247 | 0 /*offSub*/, cbL1Loc);
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| 248 | if (RT_SUCCESS(rc))
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| 249 | {
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| 250 | pGVM->dbgfr0.s.hMemObjBpLocL1 = hMemObj;
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| 251 | pGVM->dbgfr0.s.hMapObjBpLocL1 = hMapObj;
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| 252 | pGVM->dbgfr0.s.paBpLocL1R0 = (volatile uint32_t *)RTR0MemObjAddress(hMemObj);
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| 253 |
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| 254 | /*
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| 255 | * We're done.
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| 256 | */
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| 257 | *ppaBpLocL1R3 = RTR0MemObjAddressR3(hMapObj);
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| 258 | pGVM->dbgfr0.s.fInit = true;
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| 259 | return rc;
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| 260 | }
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| 261 |
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| 262 | RTR0MemObjFree(hMemObj, true);
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| 263 | return rc;
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| 264 | }
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| 265 |
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| 266 |
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| 267 | /**
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[89912] | 268 | * Worker for DBGFR0BpPortIoInitReqHandler() that does the actual initialization.
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| 269 | *
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| 270 | * @returns VBox status code.
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| 271 | * @param pGVM The global (ring-0) VM structure.
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| 272 | * @param ppaBpLocPortIoR3 Where to return the ring-3 L1 lookup table address on success.
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| 273 | * @thread EMT(0)
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| 274 | */
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| 275 | static int dbgfR0BpPortIoInitWorker(PGVM pGVM, R3PTRTYPE(volatile uint32_t *) *ppaBpLocPortIoR3)
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| 276 | {
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| 277 | /*
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| 278 | * Figure out how much memory we need for the I/O port breakpoint lookup table and allocate it.
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| 279 | */
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[93554] | 280 | uint32_t const cbPortIoLoc = RT_ALIGN_32(UINT16_MAX * sizeof(uint32_t), HOST_PAGE_SIZE);
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[89912] | 281 |
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| 282 | RTR0MEMOBJ hMemObj;
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| 283 | int rc = RTR0MemObjAllocPage(&hMemObj, cbPortIoLoc, false /*fExecutable*/);
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| 284 | if (RT_FAILURE(rc))
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| 285 | return rc;
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| 286 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbPortIoLoc);
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| 287 |
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| 288 | /* Map it. */
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| 289 | RTR0MEMOBJ hMapObj;
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| 290 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
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| 291 | 0 /*offSub*/, cbPortIoLoc);
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| 292 | if (RT_SUCCESS(rc))
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| 293 | {
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| 294 | pGVM->dbgfr0.s.hMemObjBpLocPortIo = hMemObj;
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| 295 | pGVM->dbgfr0.s.hMapObjBpLocPortIo = hMapObj;
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| 296 | pGVM->dbgfr0.s.paBpLocPortIoR0 = (volatile uint32_t *)RTR0MemObjAddress(hMemObj);
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| 297 |
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| 298 | /*
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| 299 | * We're done.
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| 300 | */
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| 301 | *ppaBpLocPortIoR3 = RTR0MemObjAddressR3(hMapObj);
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| 302 | return rc;
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| 303 | }
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| 304 |
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| 305 | RTR0MemObjFree(hMemObj, true);
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| 306 | return rc;
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| 307 | }
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| 308 |
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| 309 |
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| 310 | /**
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[87107] | 311 | * Worker for DBGFR0BpOwnerInitReqHandler() that does the actual initialization.
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| 312 | *
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| 313 | * @returns VBox status code.
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| 314 | * @param pGVM The global (ring-0) VM structure.
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| 315 | * @param ppaBpOwnerR3 Where to return the ring-3 breakpoint owner table base address on success.
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| 316 | * @thread EMT(0)
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| 317 | */
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| 318 | static int dbgfR0BpOwnerInitWorker(PGVM pGVM, R3PTRTYPE(void *) *ppaBpOwnerR3)
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| 319 | {
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| 320 | /*
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[87600] | 321 | * Figure out how much memory we need for the owner tables and allocate it.
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[87107] | 322 | */
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[93554] | 323 | uint32_t const cbBpOwnerR0 = RT_ALIGN_32(DBGF_BP_OWNER_COUNT_MAX * sizeof(DBGFBPOWNERINTR0), HOST_PAGE_SIZE);
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| 324 | uint32_t const cbBpOwnerR3 = RT_ALIGN_32(DBGF_BP_OWNER_COUNT_MAX * sizeof(DBGFBPOWNERINT), HOST_PAGE_SIZE);
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| 325 | uint32_t const cbTotal = RT_ALIGN_32(cbBpOwnerR0 + cbBpOwnerR3, HOST_PAGE_SIZE);
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[87107] | 326 |
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| 327 | RTR0MEMOBJ hMemObj;
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| 328 | int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /*fExecutable*/);
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| 329 | if (RT_FAILURE(rc))
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| 330 | return rc;
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| 331 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
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| 332 |
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| 333 | /* Map it. */
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| 334 | RTR0MEMOBJ hMapObj;
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| 335 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
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| 336 | cbBpOwnerR0 /*offSub*/, cbBpOwnerR3);
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| 337 | if (RT_SUCCESS(rc))
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| 338 | {
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| 339 | pGVM->dbgfr0.s.hMemObjBpOwners = hMemObj;
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| 340 | pGVM->dbgfr0.s.hMapObjBpOwners = hMapObj;
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| 341 | pGVM->dbgfr0.s.paBpOwnersR0 = (PDBGFBPOWNERINTR0)RTR0MemObjAddress(hMemObj);
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| 342 |
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| 343 | /*
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| 344 | * We're done.
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| 345 | */
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| 346 | *ppaBpOwnerR3 = RTR0MemObjAddressR3(hMapObj);
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| 347 | return rc;
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| 348 | }
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| 349 |
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| 350 | RTR0MemObjFree(hMemObj, true);
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| 351 | return rc;
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| 352 | }
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| 353 |
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| 354 |
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| 355 | /**
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[86699] | 356 | * Worker for DBGFR0BpChunkAllocReqHandler() that does the actual chunk allocation.
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| 357 | *
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| 358 | * Allocates a memory object and divides it up as follows:
|
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| 359 | * @verbatim
|
---|
| 360 | --------------------------------------
|
---|
| 361 | ring-0 chunk data
|
---|
| 362 | --------------------------------------
|
---|
| 363 | page alignment padding
|
---|
| 364 | --------------------------------------
|
---|
| 365 | shared chunk data
|
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| 366 | --------------------------------------
|
---|
| 367 | @endverbatim
|
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| 368 | *
|
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| 369 | * @returns VBox status code.
|
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| 370 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 371 | * @param idChunk The chunk ID to allocate.
|
---|
| 372 | * @param ppBpChunkBaseR3 Where to return the ring-3 chunk base address on success.
|
---|
| 373 | * @thread EMT(0)
|
---|
| 374 | */
|
---|
| 375 | static int dbgfR0BpChunkAllocWorker(PGVM pGVM, uint32_t idChunk, R3PTRTYPE(void *) *ppBpChunkBaseR3)
|
---|
| 376 | {
|
---|
| 377 | /*
|
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| 378 | * Figure out how much memory we need for the chunk and allocate it.
|
---|
| 379 | */
|
---|
[93554] | 380 | uint32_t const cbRing0 = RT_ALIGN_32(DBGF_BP_COUNT_PER_CHUNK * sizeof(DBGFBPINTR0), HOST_PAGE_SIZE);
|
---|
| 381 | uint32_t const cbShared = RT_ALIGN_32(DBGF_BP_COUNT_PER_CHUNK * sizeof(DBGFBPINT), HOST_PAGE_SIZE);
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[86699] | 382 | uint32_t const cbTotal = cbRing0 + cbShared;
|
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| 383 |
|
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| 384 | RTR0MEMOBJ hMemObj;
|
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| 385 | int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /*fExecutable*/);
|
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| 386 | if (RT_FAILURE(rc))
|
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| 387 | return rc;
|
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| 388 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
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| 389 |
|
---|
| 390 | /* Map it. */
|
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| 391 | RTR0MEMOBJ hMapObj;
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| 392 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
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| 393 | cbRing0 /*offSub*/, cbTotal - cbRing0);
|
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| 394 | if (RT_SUCCESS(rc))
|
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| 395 | {
|
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| 396 | PDBGFBPCHUNKR0 pBpChunkR0 = &pGVM->dbgfr0.s.aBpChunks[idChunk];
|
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| 397 |
|
---|
| 398 | pBpChunkR0->hMemObj = hMemObj;
|
---|
| 399 | pBpChunkR0->hMapObj = hMapObj;
|
---|
| 400 | pBpChunkR0->paBpBaseR0Only = (PDBGFBPINTR0)RTR0MemObjAddress(hMemObj);
|
---|
| 401 | pBpChunkR0->paBpBaseSharedR0 = (PDBGFBPINT)&pBpChunkR0->paBpBaseR0Only[DBGF_BP_COUNT_PER_CHUNK];
|
---|
| 402 |
|
---|
| 403 | /*
|
---|
| 404 | * We're done.
|
---|
| 405 | */
|
---|
| 406 | *ppBpChunkBaseR3 = RTR0MemObjAddressR3(hMapObj);
|
---|
| 407 | return rc;
|
---|
| 408 | }
|
---|
| 409 |
|
---|
| 410 | RTR0MemObjFree(hMemObj, true);
|
---|
| 411 | return rc;
|
---|
| 412 | }
|
---|
| 413 |
|
---|
| 414 |
|
---|
| 415 | /**
|
---|
[86704] | 416 | * Worker for DBGFR0BpL2TblChunkAllocReqHandler() that does the actual chunk allocation.
|
---|
| 417 | *
|
---|
| 418 | * @returns VBox status code.
|
---|
| 419 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 420 | * @param idChunk The chunk ID to allocate.
|
---|
| 421 | * @param ppL2ChunkBaseR3 Where to return the ring-3 chunk base address on success.
|
---|
| 422 | * @thread EMT(0)
|
---|
| 423 | */
|
---|
| 424 | static int dbgfR0BpL2TblChunkAllocWorker(PGVM pGVM, uint32_t idChunk, R3PTRTYPE(void *) *ppL2ChunkBaseR3)
|
---|
| 425 | {
|
---|
| 426 | /*
|
---|
| 427 | * Figure out how much memory we need for the chunk and allocate it.
|
---|
| 428 | */
|
---|
[93554] | 429 | uint32_t const cbTotal = RT_ALIGN_32(DBGF_BP_L2_TBL_ENTRIES_PER_CHUNK * sizeof(DBGFBPL2ENTRY), HOST_PAGE_SIZE);
|
---|
[86704] | 430 |
|
---|
| 431 | RTR0MEMOBJ hMemObj;
|
---|
| 432 | int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /*fExecutable*/);
|
---|
| 433 | if (RT_FAILURE(rc))
|
---|
| 434 | return rc;
|
---|
| 435 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
|
---|
| 436 |
|
---|
| 437 | /* Map it. */
|
---|
| 438 | RTR0MEMOBJ hMapObj;
|
---|
| 439 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
|
---|
| 440 | 0 /*offSub*/, cbTotal);
|
---|
| 441 | if (RT_SUCCESS(rc))
|
---|
| 442 | {
|
---|
| 443 | PDBGFBPL2TBLCHUNKR0 pL2ChunkR0 = &pGVM->dbgfr0.s.aBpL2TblChunks[idChunk];
|
---|
| 444 |
|
---|
| 445 | pL2ChunkR0->hMemObj = hMemObj;
|
---|
| 446 | pL2ChunkR0->hMapObj = hMapObj;
|
---|
| 447 | pL2ChunkR0->paBpL2TblBaseSharedR0 = (PDBGFBPL2ENTRY)RTR0MemObjAddress(hMemObj);
|
---|
| 448 |
|
---|
| 449 | /*
|
---|
| 450 | * We're done.
|
---|
| 451 | */
|
---|
| 452 | *ppL2ChunkBaseR3 = RTR0MemObjAddressR3(hMapObj);
|
---|
| 453 | return rc;
|
---|
| 454 | }
|
---|
| 455 |
|
---|
| 456 | RTR0MemObjFree(hMemObj, true);
|
---|
| 457 | return rc;
|
---|
| 458 | }
|
---|
| 459 |
|
---|
| 460 |
|
---|
| 461 | /**
|
---|
[86699] | 462 | * Used by ring-3 DBGF to fully initialize the breakpoint manager for operation.
|
---|
| 463 | *
|
---|
| 464 | * @returns VBox status code.
|
---|
| 465 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 466 | * @param pReq Pointer to the request buffer.
|
---|
| 467 | * @thread EMT(0)
|
---|
| 468 | */
|
---|
| 469 | VMMR0_INT_DECL(int) DBGFR0BpInitReqHandler(PGVM pGVM, PDBGFBPINITREQ pReq)
|
---|
| 470 | {
|
---|
| 471 | LogFlow(("DBGFR0BpInitReqHandler:\n"));
|
---|
| 472 |
|
---|
| 473 | /*
|
---|
| 474 | * Validate the request.
|
---|
| 475 | */
|
---|
| 476 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 477 |
|
---|
| 478 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 479 | AssertRCReturn(rc, rc);
|
---|
| 480 |
|
---|
| 481 | AssertReturn(!pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
|
---|
| 482 |
|
---|
| 483 | return dbgfR0BpInitWorker(pGVM, &pReq->paBpLocL1R3);
|
---|
| 484 | }
|
---|
| 485 |
|
---|
| 486 |
|
---|
| 487 | /**
|
---|
[89912] | 488 | * Used by ring-3 DBGF to initialize the breakpoint manager for port I/O breakpoint operation.
|
---|
| 489 | *
|
---|
| 490 | * @returns VBox status code.
|
---|
| 491 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 492 | * @param pReq Pointer to the request buffer.
|
---|
| 493 | * @thread EMT(0)
|
---|
| 494 | */
|
---|
| 495 | VMMR0_INT_DECL(int) DBGFR0BpPortIoInitReqHandler(PGVM pGVM, PDBGFBPINITREQ pReq)
|
---|
| 496 | {
|
---|
| 497 | LogFlow(("DBGFR0BpPortIoInitReqHandler:\n"));
|
---|
| 498 |
|
---|
| 499 | /*
|
---|
| 500 | * Validate the request.
|
---|
| 501 | */
|
---|
| 502 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 503 |
|
---|
| 504 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 505 | AssertRCReturn(rc, rc);
|
---|
| 506 |
|
---|
[89924] | 507 | AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
|
---|
[89912] | 508 | AssertReturn(!pGVM->dbgfr0.s.paBpLocPortIoR0, VERR_WRONG_ORDER);
|
---|
| 509 |
|
---|
| 510 | return dbgfR0BpPortIoInitWorker(pGVM, &pReq->paBpLocL1R3);
|
---|
| 511 | }
|
---|
| 512 |
|
---|
| 513 |
|
---|
| 514 | /**
|
---|
[87107] | 515 | * Used by ring-3 DBGF to initialize the breakpoint owner table for operation.
|
---|
| 516 | *
|
---|
| 517 | * @returns VBox status code.
|
---|
| 518 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 519 | * @param pReq Pointer to the request buffer.
|
---|
| 520 | * @thread EMT(0)
|
---|
| 521 | */
|
---|
| 522 | VMMR0_INT_DECL(int) DBGFR0BpOwnerInitReqHandler(PGVM pGVM, PDBGFBPOWNERINITREQ pReq)
|
---|
| 523 | {
|
---|
| 524 | LogFlow(("DBGFR0BpOwnerInitReqHandler:\n"));
|
---|
| 525 |
|
---|
| 526 | /*
|
---|
| 527 | * Validate the request.
|
---|
| 528 | */
|
---|
| 529 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 530 |
|
---|
| 531 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 532 | AssertRCReturn(rc, rc);
|
---|
| 533 |
|
---|
| 534 | AssertReturn(!pGVM->dbgfr0.s.paBpOwnersR0, VERR_WRONG_ORDER);
|
---|
| 535 |
|
---|
| 536 | return dbgfR0BpOwnerInitWorker(pGVM, &pReq->paBpOwnerR3);
|
---|
| 537 | }
|
---|
| 538 |
|
---|
| 539 |
|
---|
| 540 | /**
|
---|
[86699] | 541 | * Used by ring-3 DBGF to allocate a given chunk in the global breakpoint table.
|
---|
| 542 | *
|
---|
| 543 | * @returns VBox status code.
|
---|
| 544 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 545 | * @param pReq Pointer to the request buffer.
|
---|
| 546 | * @thread EMT(0)
|
---|
| 547 | */
|
---|
| 548 | VMMR0_INT_DECL(int) DBGFR0BpChunkAllocReqHandler(PGVM pGVM, PDBGFBPCHUNKALLOCREQ pReq)
|
---|
| 549 | {
|
---|
| 550 | LogFlow(("DBGFR0BpChunkAllocReqHandler:\n"));
|
---|
| 551 |
|
---|
| 552 | /*
|
---|
| 553 | * Validate the request.
|
---|
| 554 | */
|
---|
| 555 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 556 |
|
---|
| 557 | uint32_t const idChunk = pReq->idChunk;
|
---|
| 558 | AssertReturn(idChunk < DBGF_BP_CHUNK_COUNT, VERR_INVALID_PARAMETER);
|
---|
| 559 |
|
---|
| 560 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 561 | AssertRCReturn(rc, rc);
|
---|
| 562 |
|
---|
| 563 | AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
|
---|
| 564 | AssertReturn(pGVM->dbgfr0.s.aBpChunks[idChunk].hMemObj == NIL_RTR0MEMOBJ, VERR_INVALID_PARAMETER);
|
---|
| 565 |
|
---|
| 566 | return dbgfR0BpChunkAllocWorker(pGVM, idChunk, &pReq->pChunkBaseR3);
|
---|
| 567 | }
|
---|
| 568 |
|
---|
[86704] | 569 |
|
---|
| 570 | /**
|
---|
| 571 | * Used by ring-3 DBGF to allocate a given chunk in the global L2 lookup table.
|
---|
| 572 | *
|
---|
| 573 | * @returns VBox status code.
|
---|
| 574 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 575 | * @param pReq Pointer to the request buffer.
|
---|
| 576 | * @thread EMT(0)
|
---|
| 577 | */
|
---|
| 578 | VMMR0_INT_DECL(int) DBGFR0BpL2TblChunkAllocReqHandler(PGVM pGVM, PDBGFBPL2TBLCHUNKALLOCREQ pReq)
|
---|
| 579 | {
|
---|
| 580 | LogFlow(("DBGFR0BpL2TblChunkAllocReqHandler:\n"));
|
---|
| 581 |
|
---|
| 582 | /*
|
---|
| 583 | * Validate the request.
|
---|
| 584 | */
|
---|
| 585 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 586 |
|
---|
| 587 | uint32_t const idChunk = pReq->idChunk;
|
---|
| 588 | AssertReturn(idChunk < DBGF_BP_L2_TBL_CHUNK_COUNT, VERR_INVALID_PARAMETER);
|
---|
| 589 |
|
---|
| 590 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 591 | AssertRCReturn(rc, rc);
|
---|
| 592 |
|
---|
| 593 | AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
|
---|
| 594 | AssertReturn(pGVM->dbgfr0.s.aBpL2TblChunks[idChunk].hMemObj == NIL_RTR0MEMOBJ, VERR_INVALID_PARAMETER);
|
---|
| 595 |
|
---|
| 596 | return dbgfR0BpL2TblChunkAllocWorker(pGVM, idChunk, &pReq->pChunkBaseR3);
|
---|
| 597 | }
|
---|
| 598 |
|
---|