[86699] | 1 | /* $Id: DBGFR0Bp.cpp 98103 2023-01-17 14:15:46Z 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 | * @returns nothing.
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| 60 | * @param pGVM The global (ring-0) VM structure.
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| 61 | */
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| 62 | DECLHIDDEN(void) dbgfR0BpInit(PGVM pGVM)
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| 63 | {
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[87107] | 64 | pGVM->dbgfr0.s.hMemObjBpOwners = NIL_RTR0MEMOBJ;
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| 65 | pGVM->dbgfr0.s.hMapObjBpOwners = NIL_RTR0MEMOBJ;
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| 66 | //pGVM->dbgfr0.s.paBpOwnersR0 = NULL;
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| 67 |
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[86699] | 68 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
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| 69 | {
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| 70 | PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
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| 71 |
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| 72 | pBpChunk->hMemObj = NIL_RTR0MEMOBJ;
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| 73 | pBpChunk->hMapObj = NIL_RTR0MEMOBJ;
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| 74 | //pBpChunk->paBpBaseSharedR0 = NULL;
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| 75 | //pBpChunk->paBpBaseR0Only = NULL;
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| 76 | }
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| 77 |
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[86704] | 78 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
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| 79 | {
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| 80 | PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
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| 81 |
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| 82 | pL2Chunk->hMemObj = NIL_RTR0MEMOBJ;
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| 83 | pL2Chunk->hMapObj = NIL_RTR0MEMOBJ;
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| 84 | //pL2Chunk->paBpL2TblBaseSharedR0 = NULL;
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| 85 | }
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| 86 |
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[89912] | 87 | pGVM->dbgfr0.s.hMemObjBpLocL1 = NIL_RTR0MEMOBJ;
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| 88 | pGVM->dbgfr0.s.hMapObjBpLocL1 = NIL_RTR0MEMOBJ;
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| 89 | pGVM->dbgfr0.s.hMemObjBpLocPortIo = NIL_RTR0MEMOBJ;
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| 90 | pGVM->dbgfr0.s.hMapObjBpLocPortIo = NIL_RTR0MEMOBJ;
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| 91 | //pGVM->dbgfr0.s.paBpLocL1R0 = NULL;
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| 92 | //pGVM->dbgfr0.s.paBpLocPortIoR0 = NULL;
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| 93 | //pGVM->dbgfr0.s.fInit = false;
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[86699] | 94 | }
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| 95 |
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| 96 |
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| 97 | /**
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| 98 | * Used by DBGFR0CleanupVM to destroy the breakpoint manager.
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| 99 | *
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| 100 | * This is done during VM cleanup so that we're sure there are no active threads
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| 101 | * using the breakpoint code.
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| 102 | *
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| 103 | * @param pGVM The global (ring-0) VM structure.
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| 104 | */
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| 105 | DECLHIDDEN(void) dbgfR0BpDestroy(PGVM pGVM)
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| 106 | {
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[87107] | 107 | if (pGVM->dbgfr0.s.hMemObjBpOwners != NIL_RTR0MEMOBJ)
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| 108 | {
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| 109 | Assert(pGVM->dbgfr0.s.hMapObjBpOwners != NIL_RTR0MEMOBJ);
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| 110 | AssertPtr(pGVM->dbgfr0.s.paBpOwnersR0);
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| 111 |
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| 112 | RTR0MEMOBJ hMemObj = pGVM->dbgfr0.s.hMapObjBpOwners;
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| 113 | pGVM->dbgfr0.s.hMapObjBpOwners = NIL_RTR0MEMOBJ;
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| 114 | RTR0MemObjFree(hMemObj, true);
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| 115 |
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| 116 | hMemObj = pGVM->dbgfr0.s.hMemObjBpOwners;
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| 117 | pGVM->dbgfr0.s.hMemObjBpOwners = NIL_RTR0MEMOBJ;
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| 118 | RTR0MemObjFree(hMemObj, true);
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| 119 | }
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| 120 |
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[86699] | 121 | if (pGVM->dbgfr0.s.fInit)
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| 122 | {
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| 123 | Assert(pGVM->dbgfr0.s.hMemObjBpLocL1 != NIL_RTR0MEMOBJ);
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| 124 | AssertPtr(pGVM->dbgfr0.s.paBpLocL1R0);
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| 125 |
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| 126 | /*
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| 127 | * Free all allocated memory and ring-3 mapping objects.
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| 128 | */
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| 129 | RTR0MEMOBJ hMemObj = pGVM->dbgfr0.s.hMemObjBpLocL1;
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| 130 | pGVM->dbgfr0.s.hMemObjBpLocL1 = NIL_RTR0MEMOBJ;
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| 131 | pGVM->dbgfr0.s.paBpLocL1R0 = NULL;
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| 132 | RTR0MemObjFree(hMemObj, true);
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| 133 |
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[89912] | 134 | if (pGVM->dbgfr0.s.paBpLocPortIoR0)
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| 135 | {
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| 136 | Assert(pGVM->dbgfr0.s.hMemObjBpLocPortIo != NIL_RTR0MEMOBJ);
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| 137 | Assert(pGVM->dbgfr0.s.hMapObjBpLocPortIo != NIL_RTR0MEMOBJ);
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| 138 |
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| 139 | hMemObj = pGVM->dbgfr0.s.hMapObjBpLocPortIo;
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| 140 | pGVM->dbgfr0.s.hMapObjBpLocPortIo = NIL_RTR0MEMOBJ;
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| 141 | RTR0MemObjFree(hMemObj, true);
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| 142 |
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| 143 | hMemObj = pGVM->dbgfr0.s.hMemObjBpLocPortIo;
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| 144 | pGVM->dbgfr0.s.hMemObjBpLocPortIo = NIL_RTR0MEMOBJ;
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| 145 | pGVM->dbgfr0.s.paBpLocPortIoR0 = NULL;
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| 146 | RTR0MemObjFree(hMemObj, true);
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| 147 | }
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| 148 |
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[86699] | 149 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
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| 150 | {
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| 151 | PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
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| 152 |
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| 153 | if (pBpChunk->hMemObj != NIL_RTR0MEMOBJ)
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| 154 | {
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| 155 | Assert(pBpChunk->hMapObj != NIL_RTR0MEMOBJ);
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| 156 |
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| 157 | pBpChunk->paBpBaseSharedR0 = NULL;
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| 158 | pBpChunk->paBpBaseR0Only = NULL;
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| 159 |
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| 160 | hMemObj = pBpChunk->hMapObj;
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| 161 | pBpChunk->hMapObj = NIL_RTR0MEMOBJ;
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| 162 | RTR0MemObjFree(hMemObj, true);
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| 163 |
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| 164 | hMemObj = pBpChunk->hMemObj;
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| 165 | pBpChunk->hMemObj = NIL_RTR0MEMOBJ;
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| 166 | RTR0MemObjFree(hMemObj, true);
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| 167 | }
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| 168 | }
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| 169 |
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[86704] | 170 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
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| 171 | {
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| 172 | PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
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| 173 |
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| 174 | if (pL2Chunk->hMemObj != NIL_RTR0MEMOBJ)
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| 175 | {
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| 176 | Assert(pL2Chunk->hMapObj != NIL_RTR0MEMOBJ);
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| 177 |
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| 178 | pL2Chunk->paBpL2TblBaseSharedR0 = NULL;
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| 179 |
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| 180 | hMemObj = pL2Chunk->hMapObj;
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| 181 | pL2Chunk->hMapObj = NIL_RTR0MEMOBJ;
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| 182 | RTR0MemObjFree(hMemObj, true);
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| 183 |
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| 184 | hMemObj = pL2Chunk->hMemObj;
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| 185 | pL2Chunk->hMemObj = NIL_RTR0MEMOBJ;
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| 186 | RTR0MemObjFree(hMemObj, true);
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| 187 | }
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| 188 | }
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| 189 |
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[86699] | 190 | pGVM->dbgfr0.s.fInit = false;
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| 191 | }
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| 192 | #ifdef RT_STRICT
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| 193 | else
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| 194 | {
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| 195 | Assert(pGVM->dbgfr0.s.hMemObjBpLocL1 == NIL_RTR0MEMOBJ);
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| 196 | Assert(!pGVM->dbgfr0.s.paBpLocL1R0);
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| 197 |
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[89912] | 198 | Assert(pGVM->dbgfr0.s.hMemObjBpLocPortIo == NIL_RTR0MEMOBJ);
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| 199 | Assert(!pGVM->dbgfr0.s.paBpLocPortIoR0);
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| 200 |
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[86699] | 201 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
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| 202 | {
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| 203 | PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
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| 204 |
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| 205 | Assert(pBpChunk->hMemObj == NIL_RTR0MEMOBJ);
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| 206 | Assert(pBpChunk->hMapObj == NIL_RTR0MEMOBJ);
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| 207 | Assert(!pBpChunk->paBpBaseSharedR0);
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| 208 | Assert(!pBpChunk->paBpBaseR0Only);
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| 209 | }
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[86704] | 210 |
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| 211 | for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
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| 212 | {
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| 213 | PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
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| 214 |
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| 215 | Assert(pL2Chunk->hMemObj == NIL_RTR0MEMOBJ);
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| 216 | Assert(pL2Chunk->hMapObj == NIL_RTR0MEMOBJ);
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| 217 | Assert(!pL2Chunk->paBpL2TblBaseSharedR0);
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| 218 | }
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[86699] | 219 | }
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| 220 | #endif
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| 221 | }
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| 222 |
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| 223 |
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| 224 | /**
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| 225 | * Worker for DBGFR0BpInitReqHandler() that does the actual initialization.
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| 226 | *
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| 227 | * @returns VBox status code.
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| 228 | * @param pGVM The global (ring-0) VM structure.
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[86700] | 229 | * @param ppaBpLocL1R3 Where to return the ring-3 L1 lookup table address on success.
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[86699] | 230 | * @thread EMT(0)
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| 231 | */
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| 232 | static int dbgfR0BpInitWorker(PGVM pGVM, R3PTRTYPE(volatile uint32_t *) *ppaBpLocL1R3)
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| 233 | {
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| 234 | /*
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| 235 | * Figure out how much memory we need for the L1 lookup table and allocate it.
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| 236 | */
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[93554] | 237 | uint32_t const cbL1Loc = RT_ALIGN_32(UINT16_MAX * sizeof(uint32_t), HOST_PAGE_SIZE);
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[86699] | 238 |
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| 239 | RTR0MEMOBJ hMemObj;
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| 240 | int rc = RTR0MemObjAllocPage(&hMemObj, cbL1Loc, false /*fExecutable*/);
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| 241 | if (RT_FAILURE(rc))
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| 242 | return rc;
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| 243 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbL1Loc);
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| 244 |
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| 245 | /* Map it. */
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| 246 | RTR0MEMOBJ hMapObj;
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| 247 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
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| 248 | 0 /*offSub*/, cbL1Loc);
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| 249 | if (RT_SUCCESS(rc))
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| 250 | {
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| 251 | pGVM->dbgfr0.s.hMemObjBpLocL1 = hMemObj;
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| 252 | pGVM->dbgfr0.s.hMapObjBpLocL1 = hMapObj;
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| 253 | pGVM->dbgfr0.s.paBpLocL1R0 = (volatile uint32_t *)RTR0MemObjAddress(hMemObj);
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| 254 |
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| 255 | /*
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| 256 | * We're done.
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| 257 | */
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| 258 | *ppaBpLocL1R3 = RTR0MemObjAddressR3(hMapObj);
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| 259 | pGVM->dbgfr0.s.fInit = true;
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| 260 | return rc;
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| 261 | }
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| 262 |
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| 263 | RTR0MemObjFree(hMemObj, true);
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| 264 | return rc;
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| 265 | }
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| 266 |
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| 267 |
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| 268 | /**
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[89912] | 269 | * Worker for DBGFR0BpPortIoInitReqHandler() that does the actual initialization.
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| 270 | *
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| 271 | * @returns VBox status code.
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| 272 | * @param pGVM The global (ring-0) VM structure.
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| 273 | * @param ppaBpLocPortIoR3 Where to return the ring-3 L1 lookup table address on success.
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| 274 | * @thread EMT(0)
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| 275 | */
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| 276 | static int dbgfR0BpPortIoInitWorker(PGVM pGVM, R3PTRTYPE(volatile uint32_t *) *ppaBpLocPortIoR3)
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| 277 | {
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| 278 | /*
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| 279 | * Figure out how much memory we need for the I/O port breakpoint lookup table and allocate it.
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| 280 | */
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[93554] | 281 | uint32_t const cbPortIoLoc = RT_ALIGN_32(UINT16_MAX * sizeof(uint32_t), HOST_PAGE_SIZE);
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[89912] | 282 |
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| 283 | RTR0MEMOBJ hMemObj;
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| 284 | int rc = RTR0MemObjAllocPage(&hMemObj, cbPortIoLoc, false /*fExecutable*/);
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| 285 | if (RT_FAILURE(rc))
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| 286 | return rc;
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| 287 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbPortIoLoc);
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| 288 |
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| 289 | /* Map it. */
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| 290 | RTR0MEMOBJ hMapObj;
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| 291 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
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| 292 | 0 /*offSub*/, cbPortIoLoc);
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| 293 | if (RT_SUCCESS(rc))
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| 294 | {
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| 295 | pGVM->dbgfr0.s.hMemObjBpLocPortIo = hMemObj;
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| 296 | pGVM->dbgfr0.s.hMapObjBpLocPortIo = hMapObj;
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| 297 | pGVM->dbgfr0.s.paBpLocPortIoR0 = (volatile uint32_t *)RTR0MemObjAddress(hMemObj);
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| 298 |
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| 299 | /*
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| 300 | * We're done.
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| 301 | */
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| 302 | *ppaBpLocPortIoR3 = RTR0MemObjAddressR3(hMapObj);
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| 303 | return rc;
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| 304 | }
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| 305 |
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| 306 | RTR0MemObjFree(hMemObj, true);
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| 307 | return rc;
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| 308 | }
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| 309 |
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| 310 |
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| 311 | /**
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[87107] | 312 | * Worker for DBGFR0BpOwnerInitReqHandler() that does the actual initialization.
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| 313 | *
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| 314 | * @returns VBox status code.
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| 315 | * @param pGVM The global (ring-0) VM structure.
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| 316 | * @param ppaBpOwnerR3 Where to return the ring-3 breakpoint owner table base address on success.
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| 317 | * @thread EMT(0)
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| 318 | */
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| 319 | static int dbgfR0BpOwnerInitWorker(PGVM pGVM, R3PTRTYPE(void *) *ppaBpOwnerR3)
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| 320 | {
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| 321 | /*
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[87600] | 322 | * Figure out how much memory we need for the owner tables and allocate it.
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[87107] | 323 | */
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[93554] | 324 | uint32_t const cbBpOwnerR0 = RT_ALIGN_32(DBGF_BP_OWNER_COUNT_MAX * sizeof(DBGFBPOWNERINTR0), HOST_PAGE_SIZE);
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| 325 | uint32_t const cbBpOwnerR3 = RT_ALIGN_32(DBGF_BP_OWNER_COUNT_MAX * sizeof(DBGFBPOWNERINT), HOST_PAGE_SIZE);
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| 326 | uint32_t const cbTotal = RT_ALIGN_32(cbBpOwnerR0 + cbBpOwnerR3, HOST_PAGE_SIZE);
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[87107] | 327 |
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| 328 | RTR0MEMOBJ hMemObj;
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| 329 | int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /*fExecutable*/);
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| 330 | if (RT_FAILURE(rc))
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| 331 | return rc;
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| 332 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
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| 333 |
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| 334 | /* Map it. */
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| 335 | RTR0MEMOBJ hMapObj;
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| 336 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
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| 337 | cbBpOwnerR0 /*offSub*/, cbBpOwnerR3);
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| 338 | if (RT_SUCCESS(rc))
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| 339 | {
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| 340 | pGVM->dbgfr0.s.hMemObjBpOwners = hMemObj;
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| 341 | pGVM->dbgfr0.s.hMapObjBpOwners = hMapObj;
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| 342 | pGVM->dbgfr0.s.paBpOwnersR0 = (PDBGFBPOWNERINTR0)RTR0MemObjAddress(hMemObj);
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| 343 |
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| 344 | /*
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| 345 | * We're done.
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| 346 | */
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| 347 | *ppaBpOwnerR3 = RTR0MemObjAddressR3(hMapObj);
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| 348 | return rc;
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| 349 | }
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| 350 |
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| 351 | RTR0MemObjFree(hMemObj, true);
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| 352 | return rc;
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| 353 | }
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| 354 |
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| 355 |
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| 356 | /**
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[86699] | 357 | * Worker for DBGFR0BpChunkAllocReqHandler() that does the actual chunk allocation.
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| 358 | *
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| 359 | * Allocates a memory object and divides it up as follows:
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| 360 | * @verbatim
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| 361 | --------------------------------------
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| 362 | ring-0 chunk data
|
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| 363 | --------------------------------------
|
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| 364 | page alignment padding
|
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| 365 | --------------------------------------
|
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| 366 | shared chunk data
|
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| 367 | --------------------------------------
|
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| 368 | @endverbatim
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| 369 | *
|
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| 370 | * @returns VBox status code.
|
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| 371 | * @param pGVM The global (ring-0) VM structure.
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| 372 | * @param idChunk The chunk ID to allocate.
|
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| 373 | * @param ppBpChunkBaseR3 Where to return the ring-3 chunk base address on success.
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| 374 | * @thread EMT(0)
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| 375 | */
|
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| 376 | static int dbgfR0BpChunkAllocWorker(PGVM pGVM, uint32_t idChunk, R3PTRTYPE(void *) *ppBpChunkBaseR3)
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| 377 | {
|
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| 378 | /*
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| 379 | * Figure out how much memory we need for the chunk and allocate it.
|
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| 380 | */
|
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[93554] | 381 | uint32_t const cbRing0 = RT_ALIGN_32(DBGF_BP_COUNT_PER_CHUNK * sizeof(DBGFBPINTR0), HOST_PAGE_SIZE);
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| 382 | uint32_t const cbShared = RT_ALIGN_32(DBGF_BP_COUNT_PER_CHUNK * sizeof(DBGFBPINT), HOST_PAGE_SIZE);
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[86699] | 383 | uint32_t const cbTotal = cbRing0 + cbShared;
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| 384 |
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| 385 | RTR0MEMOBJ hMemObj;
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| 386 | int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /*fExecutable*/);
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| 387 | if (RT_FAILURE(rc))
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| 388 | return rc;
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| 389 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
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| 390 |
|
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| 391 | /* Map it. */
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| 392 | RTR0MEMOBJ hMapObj;
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| 393 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
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| 394 | cbRing0 /*offSub*/, cbTotal - cbRing0);
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| 395 | if (RT_SUCCESS(rc))
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| 396 | {
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| 397 | PDBGFBPCHUNKR0 pBpChunkR0 = &pGVM->dbgfr0.s.aBpChunks[idChunk];
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| 398 |
|
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| 399 | pBpChunkR0->hMemObj = hMemObj;
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| 400 | pBpChunkR0->hMapObj = hMapObj;
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| 401 | pBpChunkR0->paBpBaseR0Only = (PDBGFBPINTR0)RTR0MemObjAddress(hMemObj);
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| 402 | pBpChunkR0->paBpBaseSharedR0 = (PDBGFBPINT)&pBpChunkR0->paBpBaseR0Only[DBGF_BP_COUNT_PER_CHUNK];
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| 403 |
|
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| 404 | /*
|
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| 405 | * We're done.
|
---|
| 406 | */
|
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| 407 | *ppBpChunkBaseR3 = RTR0MemObjAddressR3(hMapObj);
|
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| 408 | return rc;
|
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| 409 | }
|
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| 410 |
|
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| 411 | RTR0MemObjFree(hMemObj, true);
|
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| 412 | return rc;
|
---|
| 413 | }
|
---|
| 414 |
|
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| 415 |
|
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| 416 | /**
|
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[86704] | 417 | * Worker for DBGFR0BpL2TblChunkAllocReqHandler() that does the actual chunk allocation.
|
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| 418 | *
|
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| 419 | * @returns VBox status code.
|
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| 420 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 421 | * @param idChunk The chunk ID to allocate.
|
---|
| 422 | * @param ppL2ChunkBaseR3 Where to return the ring-3 chunk base address on success.
|
---|
| 423 | * @thread EMT(0)
|
---|
| 424 | */
|
---|
| 425 | static int dbgfR0BpL2TblChunkAllocWorker(PGVM pGVM, uint32_t idChunk, R3PTRTYPE(void *) *ppL2ChunkBaseR3)
|
---|
| 426 | {
|
---|
| 427 | /*
|
---|
| 428 | * Figure out how much memory we need for the chunk and allocate it.
|
---|
| 429 | */
|
---|
[93554] | 430 | uint32_t const cbTotal = RT_ALIGN_32(DBGF_BP_L2_TBL_ENTRIES_PER_CHUNK * sizeof(DBGFBPL2ENTRY), HOST_PAGE_SIZE);
|
---|
[86704] | 431 |
|
---|
| 432 | RTR0MEMOBJ hMemObj;
|
---|
| 433 | int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /*fExecutable*/);
|
---|
| 434 | if (RT_FAILURE(rc))
|
---|
| 435 | return rc;
|
---|
| 436 | RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
|
---|
| 437 |
|
---|
| 438 | /* Map it. */
|
---|
| 439 | RTR0MEMOBJ hMapObj;
|
---|
| 440 | rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ | RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
|
---|
| 441 | 0 /*offSub*/, cbTotal);
|
---|
| 442 | if (RT_SUCCESS(rc))
|
---|
| 443 | {
|
---|
| 444 | PDBGFBPL2TBLCHUNKR0 pL2ChunkR0 = &pGVM->dbgfr0.s.aBpL2TblChunks[idChunk];
|
---|
| 445 |
|
---|
| 446 | pL2ChunkR0->hMemObj = hMemObj;
|
---|
| 447 | pL2ChunkR0->hMapObj = hMapObj;
|
---|
| 448 | pL2ChunkR0->paBpL2TblBaseSharedR0 = (PDBGFBPL2ENTRY)RTR0MemObjAddress(hMemObj);
|
---|
| 449 |
|
---|
| 450 | /*
|
---|
| 451 | * We're done.
|
---|
| 452 | */
|
---|
| 453 | *ppL2ChunkBaseR3 = RTR0MemObjAddressR3(hMapObj);
|
---|
| 454 | return rc;
|
---|
| 455 | }
|
---|
| 456 |
|
---|
| 457 | RTR0MemObjFree(hMemObj, true);
|
---|
| 458 | return rc;
|
---|
| 459 | }
|
---|
| 460 |
|
---|
| 461 |
|
---|
| 462 | /**
|
---|
[86699] | 463 | * Used by ring-3 DBGF to fully initialize the breakpoint manager for operation.
|
---|
| 464 | *
|
---|
| 465 | * @returns VBox status code.
|
---|
| 466 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 467 | * @param pReq Pointer to the request buffer.
|
---|
| 468 | * @thread EMT(0)
|
---|
| 469 | */
|
---|
| 470 | VMMR0_INT_DECL(int) DBGFR0BpInitReqHandler(PGVM pGVM, PDBGFBPINITREQ pReq)
|
---|
| 471 | {
|
---|
| 472 | LogFlow(("DBGFR0BpInitReqHandler:\n"));
|
---|
| 473 |
|
---|
| 474 | /*
|
---|
| 475 | * Validate the request.
|
---|
| 476 | */
|
---|
| 477 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 478 |
|
---|
| 479 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 480 | AssertRCReturn(rc, rc);
|
---|
| 481 |
|
---|
| 482 | AssertReturn(!pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
|
---|
| 483 |
|
---|
| 484 | return dbgfR0BpInitWorker(pGVM, &pReq->paBpLocL1R3);
|
---|
| 485 | }
|
---|
| 486 |
|
---|
| 487 |
|
---|
| 488 | /**
|
---|
[89912] | 489 | * Used by ring-3 DBGF to initialize the breakpoint manager for port I/O breakpoint operation.
|
---|
| 490 | *
|
---|
| 491 | * @returns VBox status code.
|
---|
| 492 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 493 | * @param pReq Pointer to the request buffer.
|
---|
| 494 | * @thread EMT(0)
|
---|
| 495 | */
|
---|
| 496 | VMMR0_INT_DECL(int) DBGFR0BpPortIoInitReqHandler(PGVM pGVM, PDBGFBPINITREQ pReq)
|
---|
| 497 | {
|
---|
| 498 | LogFlow(("DBGFR0BpPortIoInitReqHandler:\n"));
|
---|
| 499 |
|
---|
| 500 | /*
|
---|
| 501 | * Validate the request.
|
---|
| 502 | */
|
---|
| 503 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 504 |
|
---|
| 505 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 506 | AssertRCReturn(rc, rc);
|
---|
| 507 |
|
---|
[89924] | 508 | AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
|
---|
[89912] | 509 | AssertReturn(!pGVM->dbgfr0.s.paBpLocPortIoR0, VERR_WRONG_ORDER);
|
---|
| 510 |
|
---|
| 511 | return dbgfR0BpPortIoInitWorker(pGVM, &pReq->paBpLocL1R3);
|
---|
| 512 | }
|
---|
| 513 |
|
---|
| 514 |
|
---|
| 515 | /**
|
---|
[87107] | 516 | * Used by ring-3 DBGF to initialize the breakpoint owner table for operation.
|
---|
| 517 | *
|
---|
| 518 | * @returns VBox status code.
|
---|
| 519 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 520 | * @param pReq Pointer to the request buffer.
|
---|
| 521 | * @thread EMT(0)
|
---|
| 522 | */
|
---|
| 523 | VMMR0_INT_DECL(int) DBGFR0BpOwnerInitReqHandler(PGVM pGVM, PDBGFBPOWNERINITREQ pReq)
|
---|
| 524 | {
|
---|
| 525 | LogFlow(("DBGFR0BpOwnerInitReqHandler:\n"));
|
---|
| 526 |
|
---|
| 527 | /*
|
---|
| 528 | * Validate the request.
|
---|
| 529 | */
|
---|
| 530 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 531 |
|
---|
| 532 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 533 | AssertRCReturn(rc, rc);
|
---|
| 534 |
|
---|
| 535 | AssertReturn(!pGVM->dbgfr0.s.paBpOwnersR0, VERR_WRONG_ORDER);
|
---|
| 536 |
|
---|
| 537 | return dbgfR0BpOwnerInitWorker(pGVM, &pReq->paBpOwnerR3);
|
---|
| 538 | }
|
---|
| 539 |
|
---|
| 540 |
|
---|
| 541 | /**
|
---|
[86699] | 542 | * Used by ring-3 DBGF to allocate a given chunk in the global breakpoint table.
|
---|
| 543 | *
|
---|
| 544 | * @returns VBox status code.
|
---|
| 545 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 546 | * @param pReq Pointer to the request buffer.
|
---|
| 547 | * @thread EMT(0)
|
---|
| 548 | */
|
---|
| 549 | VMMR0_INT_DECL(int) DBGFR0BpChunkAllocReqHandler(PGVM pGVM, PDBGFBPCHUNKALLOCREQ pReq)
|
---|
| 550 | {
|
---|
| 551 | LogFlow(("DBGFR0BpChunkAllocReqHandler:\n"));
|
---|
| 552 |
|
---|
| 553 | /*
|
---|
| 554 | * Validate the request.
|
---|
| 555 | */
|
---|
| 556 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 557 |
|
---|
| 558 | uint32_t const idChunk = pReq->idChunk;
|
---|
| 559 | AssertReturn(idChunk < DBGF_BP_CHUNK_COUNT, VERR_INVALID_PARAMETER);
|
---|
| 560 |
|
---|
| 561 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 562 | AssertRCReturn(rc, rc);
|
---|
| 563 |
|
---|
| 564 | AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
|
---|
| 565 | AssertReturn(pGVM->dbgfr0.s.aBpChunks[idChunk].hMemObj == NIL_RTR0MEMOBJ, VERR_INVALID_PARAMETER);
|
---|
| 566 |
|
---|
| 567 | return dbgfR0BpChunkAllocWorker(pGVM, idChunk, &pReq->pChunkBaseR3);
|
---|
| 568 | }
|
---|
| 569 |
|
---|
[86704] | 570 |
|
---|
| 571 | /**
|
---|
| 572 | * Used by ring-3 DBGF to allocate a given chunk in the global L2 lookup table.
|
---|
| 573 | *
|
---|
| 574 | * @returns VBox status code.
|
---|
| 575 | * @param pGVM The global (ring-0) VM structure.
|
---|
| 576 | * @param pReq Pointer to the request buffer.
|
---|
| 577 | * @thread EMT(0)
|
---|
| 578 | */
|
---|
| 579 | VMMR0_INT_DECL(int) DBGFR0BpL2TblChunkAllocReqHandler(PGVM pGVM, PDBGFBPL2TBLCHUNKALLOCREQ pReq)
|
---|
| 580 | {
|
---|
| 581 | LogFlow(("DBGFR0BpL2TblChunkAllocReqHandler:\n"));
|
---|
| 582 |
|
---|
| 583 | /*
|
---|
| 584 | * Validate the request.
|
---|
| 585 | */
|
---|
| 586 | AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
|
---|
| 587 |
|
---|
| 588 | uint32_t const idChunk = pReq->idChunk;
|
---|
| 589 | AssertReturn(idChunk < DBGF_BP_L2_TBL_CHUNK_COUNT, VERR_INVALID_PARAMETER);
|
---|
| 590 |
|
---|
| 591 | int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
|
---|
| 592 | AssertRCReturn(rc, rc);
|
---|
| 593 |
|
---|
| 594 | AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
|
---|
| 595 | AssertReturn(pGVM->dbgfr0.s.aBpL2TblChunks[idChunk].hMemObj == NIL_RTR0MEMOBJ, VERR_INVALID_PARAMETER);
|
---|
| 596 |
|
---|
| 597 | return dbgfR0BpL2TblChunkAllocWorker(pGVM, idChunk, &pReq->pChunkBaseR3);
|
---|
| 598 | }
|
---|
| 599 |
|
---|