[99051] | 1 | /* $Id: PGM-armv8.cpp 100759 2023-07-31 14:33:14Z vboxsync $ */
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| 2 | /** @file
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| 3 | * PGM - Page Manager and Monitor, ARMv8 variant. (Mixing stuff here, not good?)
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * SPDX-License-Identifier: GPL-3.0-only
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| 26 | */
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| 27 |
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| 28 |
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| 29 | /** @page pg_pgm_armv8 PGM - The Page Manager and Monitor (ARMv8 variant)
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| 30 | *
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| 31 | * For now this is just a stub for bringing up the ARMv8 hypervisor. We'll see how
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| 32 | * much we really need here later on and whether it makes sense to merge this with the original PGM.cpp
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[99055] | 33 | * (avoiding \#ifdef hell for with this as I'm not confident enough to fiddle around with PGM too much at this point).
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[99051] | 34 | */
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| 35 |
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| 36 |
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| 37 | /*********************************************************************************************************************************
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| 38 | * Header Files *
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| 39 | *********************************************************************************************************************************/
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| 40 | #define LOG_GROUP LOG_GROUP_PGM
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| 41 | #define VBOX_WITHOUT_PAGING_BIT_FIELDS /* 64-bit bitfields are just asking for trouble. See @bugref{9841} and others. */
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| 42 | #include <VBox/vmm/dbgf.h>
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| 43 | #include <VBox/vmm/pgm.h>
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| 44 | #include <VBox/vmm/cpum.h>
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| 45 | #include <VBox/vmm/iom.h>
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| 46 | #include <VBox/sup.h>
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| 47 | #include <VBox/vmm/mm.h>
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| 48 | #include <VBox/vmm/em.h>
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| 49 | #include <VBox/vmm/stam.h>
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| 50 | #include <VBox/vmm/selm.h>
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| 51 | #include <VBox/vmm/ssm.h>
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| 52 | #include <VBox/vmm/hm.h>
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| 53 | #include "PGMInternal.h"
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| 54 | #include <VBox/vmm/vmcc.h>
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| 55 | #include <VBox/vmm/uvm.h>
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| 56 | #include "PGMInline.h"
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| 57 |
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| 58 | #include <VBox/dbg.h>
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| 59 | #include <VBox/param.h>
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| 60 | #include <VBox/err.h>
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| 61 |
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| 62 | #include <iprt/asm.h>
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| 63 | #include <iprt/assert.h>
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| 64 | #include <iprt/env.h>
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| 65 | #include <iprt/file.h>
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| 66 | #include <iprt/mem.h>
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| 67 | #include <iprt/rand.h>
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| 68 | #include <iprt/string.h>
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| 69 | #include <iprt/thread.h>
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| 70 |
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| 71 |
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| 72 | /*********************************************************************************************************************************
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| 73 | * Structures and Typedefs *
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| 74 | *********************************************************************************************************************************/
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| 75 |
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| 76 |
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| 77 | /*********************************************************************************************************************************
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| 78 | * Internal Functions *
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| 79 | *********************************************************************************************************************************/
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| 80 | #ifdef VBOX_STRICT
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| 81 | static FNVMATSTATE pgmR3ResetNoMorePhysWritesFlag;
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| 82 | #endif
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| 83 |
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| 84 |
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| 85 | /*********************************************************************************************************************************
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| 86 | * Global Variables *
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| 87 | *********************************************************************************************************************************/
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| 88 | #ifndef VBOX_WITH_PGM_NEM_MODE
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| 89 | # error "This requires VBOX_WITH_PGM_NEM_MODE to be set at all times!"
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| 90 | #endif
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| 91 |
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| 92 | /**
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| 93 | * Interface that NEM uses to switch PGM into simplified memory managment mode.
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| 94 | *
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| 95 | * This call occurs before PGMR3Init.
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| 96 | *
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| 97 | * @param pVM The cross context VM structure.
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| 98 | */
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| 99 | VMMR3_INT_DECL(void) PGMR3EnableNemMode(PVM pVM)
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| 100 | {
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| 101 | AssertFatal(!PDMCritSectIsInitialized(&pVM->pgm.s.CritSectX));
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| 102 | pVM->pgm.s.fNemMode = true;
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| 103 | }
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| 104 |
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| 105 |
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| 106 | /**
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| 107 | * Checks whether the simplificed memory management mode for NEM is enabled.
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| 108 | *
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| 109 | * @returns true if enabled, false if not.
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| 110 | * @param pVM The cross context VM structure.
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| 111 | */
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| 112 | VMMR3_INT_DECL(bool) PGMR3IsNemModeEnabled(PVM pVM)
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| 113 | {
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| 114 | return pVM->pgm.s.fNemMode;
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| 115 | }
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| 116 |
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| 117 |
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| 118 | /**
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| 119 | * Initiates the paging of VM.
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| 120 | *
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| 121 | * @returns VBox status code.
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| 122 | * @param pVM The cross context VM structure.
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| 123 | */
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| 124 | VMMR3DECL(int) PGMR3Init(PVM pVM)
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| 125 | {
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| 126 | LogFlow(("PGMR3Init:\n"));
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| 127 | PCFGMNODE pCfgPGM = CFGMR3GetChild(CFGMR3GetRoot(pVM), "/PGM");
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| 128 | int rc;
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| 129 |
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| 130 | /*
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| 131 | * Assert alignment and sizes.
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| 132 | */
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| 133 | AssertCompile(sizeof(pVM->pgm.s) <= sizeof(pVM->pgm.padding));
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| 134 | AssertCompile(sizeof(pVM->apCpusR3[0]->pgm.s) <= sizeof(pVM->apCpusR3[0]->pgm.padding));
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| 135 | AssertCompileMemberAlignment(PGM, CritSectX, sizeof(uintptr_t));
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| 136 |
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| 137 | /*
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| 138 | * If we're in driveless mode we have to use the simplified memory mode.
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| 139 | */
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| 140 | bool const fDriverless = SUPR3IsDriverless();
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| 141 | AssertReturn(fDriverless, VERR_NOT_SUPPORTED);
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| 142 | if (!pVM->pgm.s.fNemMode)
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| 143 | pVM->pgm.s.fNemMode = true;
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| 144 |
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| 145 | /*
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| 146 | * Init the structure.
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| 147 | */
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| 148 | /*pVM->pgm.s.fRestoreRomPagesAtReset = false;*/
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| 149 |
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| 150 | for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.aHandyPages); i++)
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| 151 | {
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| 152 | pVM->pgm.s.aHandyPages[i].HCPhysGCPhys = NIL_GMMPAGEDESC_PHYS;
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| 153 | pVM->pgm.s.aHandyPages[i].fZeroed = false;
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| 154 | pVM->pgm.s.aHandyPages[i].idPage = NIL_GMM_PAGEID;
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| 155 | pVM->pgm.s.aHandyPages[i].idSharedPage = NIL_GMM_PAGEID;
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| 156 | }
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| 157 |
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| 158 | for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.aLargeHandyPage); i++)
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| 159 | {
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| 160 | pVM->pgm.s.aLargeHandyPage[i].HCPhysGCPhys = NIL_GMMPAGEDESC_PHYS;
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| 161 | pVM->pgm.s.aLargeHandyPage[i].fZeroed = false;
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| 162 | pVM->pgm.s.aLargeHandyPage[i].idPage = NIL_GMM_PAGEID;
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| 163 | pVM->pgm.s.aLargeHandyPage[i].idSharedPage = NIL_GMM_PAGEID;
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| 164 | }
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| 165 |
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| 166 | AssertReleaseReturn(pVM->pgm.s.cPhysHandlerTypes == 0, VERR_WRONG_ORDER);
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| 167 | for (size_t i = 0; i < RT_ELEMENTS(pVM->pgm.s.aPhysHandlerTypes); i++)
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| 168 | {
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| 169 | if (fDriverless)
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| 170 | pVM->pgm.s.aPhysHandlerTypes[i].hType = i | (RTRandU64() & ~(uint64_t)PGMPHYSHANDLERTYPE_IDX_MASK);
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| 171 | pVM->pgm.s.aPhysHandlerTypes[i].enmKind = PGMPHYSHANDLERKIND_INVALID;
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| 172 | pVM->pgm.s.aPhysHandlerTypes[i].pfnHandler = pgmR3HandlerPhysicalHandlerInvalid;
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| 173 | }
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| 174 |
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| 175 | #if 0
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| 176 | /* Init the per-CPU part. */
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| 177 | for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
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| 178 | {
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| 179 | PVMCPU pVCpu = pVM->apCpusR3[idCpu];
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| 180 | PPGMCPU pPGM = &pVCpu->pgm.s;
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| 181 | }
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| 182 | #endif
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| 183 |
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| 184 | rc = CFGMR3QueryBoolDef(CFGMR3GetRoot(pVM), "RamPreAlloc", &pVM->pgm.s.fRamPreAlloc,
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| 185 | #ifdef VBOX_WITH_PREALLOC_RAM_BY_DEFAULT
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| 186 | true
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| 187 | #else
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| 188 | false
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| 189 | #endif
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| 190 | );
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| 191 | AssertLogRelRCReturn(rc, rc);
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| 192 |
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| 193 | rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, UINT32_MAX);
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| 194 | AssertLogRelRCReturn(rc, rc);
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| 195 | for (uint32_t i = 0; i < RT_ELEMENTS(pVM->pgm.s.ChunkR3Map.Tlb.aEntries); i++)
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| 196 | pVM->pgm.s.ChunkR3Map.Tlb.aEntries[i].idChunk = NIL_GMM_CHUNKID;
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| 197 |
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| 198 | /*
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| 199 | * Get the configured RAM size - to estimate saved state size.
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| 200 | */
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| 201 | uint64_t cbRam;
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| 202 | rc = CFGMR3QueryU64(CFGMR3GetRoot(pVM), "RamSize", &cbRam);
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| 203 | if (rc == VERR_CFGM_VALUE_NOT_FOUND)
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| 204 | cbRam = 0;
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| 205 | else if (RT_SUCCESS(rc))
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| 206 | {
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| 207 | if (cbRam < GUEST_PAGE_SIZE)
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| 208 | cbRam = 0;
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| 209 | cbRam = RT_ALIGN_64(cbRam, GUEST_PAGE_SIZE);
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| 210 | }
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| 211 | else
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| 212 | {
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| 213 | AssertMsgFailed(("Configuration error: Failed to query integer \"RamSize\", rc=%Rrc.\n", rc));
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| 214 | return rc;
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| 215 | }
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| 216 |
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| 217 | /** @cfgm{/PGM/ZeroRamPagesOnReset, boolean, true}
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| 218 | * Whether to clear RAM pages on (hard) reset. */
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| 219 | rc = CFGMR3QueryBoolDef(pCfgPGM, "ZeroRamPagesOnReset", &pVM->pgm.s.fZeroRamPagesOnReset, true);
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| 220 | AssertLogRelRCReturn(rc, rc);
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| 221 |
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| 222 | /*
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| 223 | * Register callbacks, string formatters and the saved state data unit.
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| 224 | */
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| 225 | #ifdef VBOX_STRICT
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| 226 | VMR3AtStateRegister(pVM->pUVM, pgmR3ResetNoMorePhysWritesFlag, NULL);
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| 227 | #endif
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| 228 | PGMRegisterStringFormatTypes();
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| 229 |
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| 230 | rc = pgmR3InitSavedState(pVM, cbRam);
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| 231 | if (RT_FAILURE(rc))
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| 232 | return rc;
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| 233 |
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| 234 | /*
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| 235 | * Initialize the PGM critical section and flush the phys TLBs
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| 236 | */
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| 237 | rc = PDMR3CritSectInit(pVM, &pVM->pgm.s.CritSectX, RT_SRC_POS, "PGM");
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| 238 | AssertRCReturn(rc, rc);
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| 239 |
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| 240 | PGMR3PhysChunkInvalidateTLB(pVM);
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| 241 | pgmPhysInvalidatePageMapTLB(pVM);
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| 242 |
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| 243 | /*
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| 244 | * For the time being we sport a full set of handy pages in addition to the base
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| 245 | * memory to simplify things.
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| 246 | */
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| 247 | rc = MMR3ReserveHandyPages(pVM, RT_ELEMENTS(pVM->pgm.s.aHandyPages)); /** @todo this should be changed to PGM_HANDY_PAGES_MIN but this needs proper testing... */
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| 248 | AssertRCReturn(rc, rc);
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| 249 |
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| 250 | /*
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| 251 | * Setup the zero page (HCPHysZeroPg is set by ring-0).
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| 252 | */
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| 253 | RT_ZERO(pVM->pgm.s.abZeroPg); /* paranoia */
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| 254 | if (fDriverless)
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| 255 | pVM->pgm.s.HCPhysZeroPg = _4G - GUEST_PAGE_SIZE * 2 /* fake to avoid PGM_PAGE_INIT_ZERO assertion */;
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| 256 | AssertRelease(pVM->pgm.s.HCPhysZeroPg != NIL_RTHCPHYS);
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| 257 | AssertRelease(pVM->pgm.s.HCPhysZeroPg != 0);
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| 258 |
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| 259 | /*
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| 260 | * Setup the invalid MMIO page (HCPhysMmioPg is set by ring-0).
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| 261 | * (The invalid bits in HCPhysInvMmioPg are set later on init complete.)
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| 262 | */
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| 263 | ASMMemFill32(pVM->pgm.s.abMmioPg, sizeof(pVM->pgm.s.abMmioPg), 0xfeedface);
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| 264 | if (fDriverless)
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| 265 | pVM->pgm.s.HCPhysMmioPg = _4G - GUEST_PAGE_SIZE * 3 /* fake to avoid PGM_PAGE_INIT_ZERO assertion */;
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| 266 | AssertRelease(pVM->pgm.s.HCPhysMmioPg != NIL_RTHCPHYS);
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| 267 | AssertRelease(pVM->pgm.s.HCPhysMmioPg != 0);
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| 268 | pVM->pgm.s.HCPhysInvMmioPg = pVM->pgm.s.HCPhysMmioPg;
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| 269 |
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| 270 | /*
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| 271 | * Initialize physical access handlers.
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| 272 | */
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| 273 | /** @cfgm{/PGM/MaxPhysicalAccessHandlers, uint32_t, 32, 65536, 6144}
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| 274 | * Number of physical access handlers allowed (subject to rounding). This is
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| 275 | * managed as one time allocation during initializations. The default is
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| 276 | * lower for a driverless setup. */
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| 277 | /** @todo can lower it for nested paging too, at least when there is no
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| 278 | * nested guest involved. */
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| 279 | uint32_t cAccessHandlers = 0;
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| 280 | rc = CFGMR3QueryU32Def(pCfgPGM, "MaxPhysicalAccessHandlers", &cAccessHandlers, !fDriverless ? 6144 : 640);
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| 281 | AssertLogRelRCReturn(rc, rc);
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| 282 | AssertLogRelMsgStmt(cAccessHandlers >= 32, ("cAccessHandlers=%#x, min 32\n", cAccessHandlers), cAccessHandlers = 32);
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| 283 | AssertLogRelMsgStmt(cAccessHandlers <= _64K, ("cAccessHandlers=%#x, max 65536\n", cAccessHandlers), cAccessHandlers = _64K);
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| 284 | if (!fDriverless)
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| 285 | {
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| 286 | rc = VMMR3CallR0(pVM, VMMR0_DO_PGM_PHYS_HANDLER_INIT, cAccessHandlers, NULL);
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| 287 | AssertRCReturn(rc, rc);
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| 288 | AssertPtr(pVM->pgm.s.pPhysHandlerTree);
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| 289 | AssertPtr(pVM->pgm.s.PhysHandlerAllocator.m_paNodes);
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| 290 | AssertPtr(pVM->pgm.s.PhysHandlerAllocator.m_pbmAlloc);
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| 291 | }
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| 292 | else
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| 293 | {
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| 294 | uint32_t cbTreeAndBitmap = 0;
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| 295 | uint32_t const cbTotalAligned = pgmHandlerPhysicalCalcTableSizes(&cAccessHandlers, &cbTreeAndBitmap);
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| 296 | uint8_t *pb = NULL;
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| 297 | rc = SUPR3PageAlloc(cbTotalAligned >> HOST_PAGE_SHIFT, 0, (void **)&pb);
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| 298 | AssertLogRelRCReturn(rc, rc);
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| 299 |
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| 300 | pVM->pgm.s.PhysHandlerAllocator.initSlabAllocator(cAccessHandlers, (PPGMPHYSHANDLER)&pb[cbTreeAndBitmap],
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| 301 | (uint64_t *)&pb[sizeof(PGMPHYSHANDLERTREE)]);
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| 302 | pVM->pgm.s.pPhysHandlerTree = (PPGMPHYSHANDLERTREE)pb;
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| 303 | pVM->pgm.s.pPhysHandlerTree->initWithAllocator(&pVM->pgm.s.PhysHandlerAllocator);
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| 304 | }
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| 305 |
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| 306 | /*
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| 307 | * Register the physical access handler protecting ROMs.
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| 308 | */
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| 309 | if (RT_SUCCESS(rc))
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| 310 | /** @todo why isn't pgmPhysRomWriteHandler registered for ring-0? */
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| 311 | rc = PGMR3HandlerPhysicalTypeRegister(pVM, PGMPHYSHANDLERKIND_WRITE, 0 /*fFlags*/, pgmPhysRomWriteHandler,
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| 312 | "ROM write protection", &pVM->pgm.s.hRomPhysHandlerType);
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| 313 |
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| 314 | /*
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| 315 | * Register the physical access handler doing dirty MMIO2 tracing.
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| 316 | */
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| 317 | if (RT_SUCCESS(rc))
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| 318 | rc = PGMR3HandlerPhysicalTypeRegister(pVM, PGMPHYSHANDLERKIND_WRITE, PGMPHYSHANDLER_F_KEEP_PGM_LOCK,
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| 319 | pgmPhysMmio2WriteHandler, "MMIO2 dirty page tracing",
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| 320 | &pVM->pgm.s.hMmio2DirtyPhysHandlerType);
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| 321 |
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| 322 | if (RT_SUCCESS(rc))
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| 323 | return VINF_SUCCESS;
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| 324 |
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| 325 | /* Almost no cleanup necessary, MM frees all memory. */
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| 326 | PDMR3CritSectDelete(pVM, &pVM->pgm.s.CritSectX);
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| 327 |
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| 328 | return rc;
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| 329 | }
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| 330 |
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| 331 |
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| 332 | /**
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| 333 | * Ring-3 init finalizing.
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| 334 | *
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| 335 | * @returns VBox status code.
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| 336 | * @param pVM The cross context VM structure.
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| 337 | */
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| 338 | VMMR3DECL(int) PGMR3InitFinalize(PVM pVM)
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| 339 | {
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| 340 | /*
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| 341 | * Allocate memory if we're supposed to do that.
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| 342 | */
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| 343 | int rc = VINF_SUCCESS;
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| 344 | if (pVM->pgm.s.fRamPreAlloc)
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| 345 | rc = pgmR3PhysRamPreAllocate(pVM);
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| 346 |
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| 347 | //pgmLogState(pVM);
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| 348 | LogRel(("PGM: PGMR3InitFinalize: 4 MB PSE mask %RGp -> %Rrc\n", pVM->pgm.s.GCPhys4MBPSEMask, rc));
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| 349 | return rc;
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| 350 | }
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| 351 |
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| 352 |
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| 353 | /**
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| 354 | * Init phase completed callback.
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| 355 | *
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| 356 | * @returns VBox status code.
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| 357 | * @param pVM The cross context VM structure.
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| 358 | * @param enmWhat What has been completed.
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| 359 | * @thread EMT(0)
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| 360 | */
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| 361 | VMMR3_INT_DECL(int) PGMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
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| 362 | {
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| 363 | switch (enmWhat)
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| 364 | {
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| 365 | case VMINITCOMPLETED_HM:
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| 366 | AssertLogRelReturn(!pVM->pgm.s.fPciPassthrough, VERR_PGM_PCI_PASSTHRU_MISCONFIG);
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| 367 | break;
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| 368 |
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| 369 | default:
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| 370 | /* shut up gcc */
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| 371 | break;
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| 372 | }
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| 373 |
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| 374 | return VINF_SUCCESS;
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| 375 | }
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| 376 |
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| 377 |
|
---|
| 378 | /**
|
---|
| 379 | * Applies relocations to data and code managed by this component.
|
---|
| 380 | *
|
---|
| 381 | * This function will be called at init and whenever the VMM need to relocate it
|
---|
| 382 | * self inside the GC.
|
---|
| 383 | *
|
---|
| 384 | * @param pVM The cross context VM structure.
|
---|
| 385 | * @param offDelta Relocation delta relative to old location.
|
---|
| 386 | */
|
---|
| 387 | VMMR3DECL(void) PGMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
|
---|
| 388 | {
|
---|
| 389 | LogFlow(("PGMR3Relocate: offDelta=%RGv\n", offDelta));
|
---|
| 390 | RT_NOREF(pVM, offDelta);
|
---|
| 391 | }
|
---|
| 392 |
|
---|
| 393 |
|
---|
| 394 | /**
|
---|
| 395 | * Resets a virtual CPU when unplugged.
|
---|
| 396 | *
|
---|
| 397 | * @param pVM The cross context VM structure.
|
---|
| 398 | * @param pVCpu The cross context virtual CPU structure.
|
---|
| 399 | */
|
---|
| 400 | VMMR3DECL(void) PGMR3ResetCpu(PVM pVM, PVMCPU pVCpu)
|
---|
| 401 | {
|
---|
| 402 | RT_NOREF(pVM, pVCpu);
|
---|
| 403 | }
|
---|
| 404 |
|
---|
| 405 |
|
---|
| 406 | /**
|
---|
| 407 | * The VM is being reset.
|
---|
| 408 | *
|
---|
| 409 | * For the PGM component this means that any PD write monitors
|
---|
| 410 | * needs to be removed.
|
---|
| 411 | *
|
---|
| 412 | * @param pVM The cross context VM structure.
|
---|
| 413 | */
|
---|
| 414 | VMMR3_INT_DECL(void) PGMR3Reset(PVM pVM)
|
---|
| 415 | {
|
---|
| 416 | LogFlow(("PGMR3Reset:\n"));
|
---|
| 417 | VM_ASSERT_EMT(pVM);
|
---|
| 418 |
|
---|
| 419 | PGM_LOCK_VOID(pVM);
|
---|
| 420 |
|
---|
| 421 | #ifdef DEBUG
|
---|
| 422 | DBGFR3_INFO_LOG_SAFE(pVM, "mappings", NULL);
|
---|
| 423 | DBGFR3_INFO_LOG_SAFE(pVM, "handlers", "all nostat");
|
---|
| 424 | #endif
|
---|
| 425 |
|
---|
| 426 | //pgmLogState(pVM);
|
---|
| 427 | PGM_UNLOCK(pVM);
|
---|
| 428 | }
|
---|
| 429 |
|
---|
| 430 |
|
---|
| 431 | /**
|
---|
| 432 | * Memory setup after VM construction or reset.
|
---|
| 433 | *
|
---|
| 434 | * @param pVM The cross context VM structure.
|
---|
| 435 | * @param fAtReset Indicates the context, after reset if @c true or after
|
---|
| 436 | * construction if @c false.
|
---|
| 437 | */
|
---|
| 438 | VMMR3_INT_DECL(void) PGMR3MemSetup(PVM pVM, bool fAtReset)
|
---|
| 439 | {
|
---|
| 440 | if (fAtReset)
|
---|
| 441 | {
|
---|
| 442 | PGM_LOCK_VOID(pVM);
|
---|
| 443 |
|
---|
| 444 | int rc = pgmR3PhysRamZeroAll(pVM);
|
---|
| 445 | AssertReleaseRC(rc);
|
---|
| 446 |
|
---|
| 447 | rc = pgmR3PhysRomReset(pVM);
|
---|
| 448 | AssertReleaseRC(rc);
|
---|
| 449 |
|
---|
| 450 | PGM_UNLOCK(pVM);
|
---|
| 451 | }
|
---|
| 452 | }
|
---|
| 453 |
|
---|
| 454 |
|
---|
| 455 | #ifdef VBOX_STRICT
|
---|
| 456 | /**
|
---|
| 457 | * VM state change callback for clearing fNoMorePhysWrites after
|
---|
| 458 | * a snapshot has been created.
|
---|
| 459 | */
|
---|
| 460 | static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PUVM pUVM, PCVMMR3VTABLE pVMM, VMSTATE enmState,
|
---|
| 461 | VMSTATE enmOldState, void *pvUser)
|
---|
| 462 | {
|
---|
| 463 | if ( enmState == VMSTATE_RUNNING
|
---|
| 464 | || enmState == VMSTATE_RESUMING)
|
---|
| 465 | pUVM->pVM->pgm.s.fNoMorePhysWrites = false;
|
---|
| 466 | RT_NOREF(pVMM, enmOldState, pvUser);
|
---|
| 467 | }
|
---|
| 468 | #endif
|
---|
| 469 |
|
---|
| 470 | /**
|
---|
| 471 | * Private API to reset fNoMorePhysWrites.
|
---|
| 472 | */
|
---|
| 473 | VMMR3_INT_DECL(void) PGMR3ResetNoMorePhysWritesFlag(PVM pVM)
|
---|
| 474 | {
|
---|
| 475 | pVM->pgm.s.fNoMorePhysWrites = false;
|
---|
| 476 | }
|
---|
| 477 |
|
---|
| 478 | /**
|
---|
| 479 | * Terminates the PGM.
|
---|
| 480 | *
|
---|
| 481 | * @returns VBox status code.
|
---|
| 482 | * @param pVM The cross context VM structure.
|
---|
| 483 | */
|
---|
| 484 | VMMR3DECL(int) PGMR3Term(PVM pVM)
|
---|
| 485 | {
|
---|
| 486 | /* Must free shared pages here. */
|
---|
| 487 | PGM_LOCK_VOID(pVM);
|
---|
| 488 | pgmR3PhysRamTerm(pVM);
|
---|
| 489 | pgmR3PhysRomTerm(pVM);
|
---|
| 490 | PGM_UNLOCK(pVM);
|
---|
| 491 |
|
---|
| 492 | PGMDeregisterStringFormatTypes();
|
---|
| 493 | return PDMR3CritSectDelete(pVM, &pVM->pgm.s.CritSectX);
|
---|
| 494 | }
|
---|
| 495 |
|
---|
| 496 |
|
---|
| 497 | /**
|
---|
| 498 | * Perform an integrity check on the PGM component.
|
---|
| 499 | *
|
---|
| 500 | * @returns VINF_SUCCESS if everything is fine.
|
---|
| 501 | * @returns VBox error status after asserting on integrity breach.
|
---|
| 502 | * @param pVM The cross context VM structure.
|
---|
| 503 | */
|
---|
| 504 | VMMR3DECL(int) PGMR3CheckIntegrity(PVM pVM)
|
---|
| 505 | {
|
---|
| 506 | RT_NOREF(pVM);
|
---|
| 507 | return VINF_SUCCESS;
|
---|
| 508 | }
|
---|
| 509 |
|
---|
| 510 |
|
---|
| 511 | VMMDECL(bool) PGMHasDirtyPages(PVM pVM)
|
---|
| 512 | {
|
---|
| 513 | return pVM->pgm.s.CTX_SUFF(pPool)->cDirtyPages != 0;
|
---|
| 514 | }
|
---|
| 515 |
|
---|
| 516 |
|
---|
| 517 | VMMDECL(bool) PGMIsLockOwner(PVMCC pVM)
|
---|
| 518 | {
|
---|
| 519 | return PDMCritSectIsOwner(pVM, &pVM->pgm.s.CritSectX);
|
---|
| 520 | }
|
---|
| 521 |
|
---|
| 522 |
|
---|
| 523 | VMMDECL(int) PGMSetLargePageUsage(PVMCC pVM, bool fUseLargePages)
|
---|
| 524 | {
|
---|
| 525 | VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
|
---|
| 526 |
|
---|
| 527 | pVM->pgm.s.fUseLargePages = fUseLargePages;
|
---|
| 528 | return VINF_SUCCESS;
|
---|
| 529 | }
|
---|
| 530 |
|
---|
| 531 |
|
---|
| 532 | #if defined(VBOX_STRICT) || defined(DOXYGEN_RUNNING)
|
---|
| 533 | int pgmLockDebug(PVMCC pVM, bool fVoid, RT_SRC_POS_DECL)
|
---|
| 534 | #else
|
---|
| 535 | int pgmLock(PVMCC pVM, bool fVoid)
|
---|
| 536 | #endif
|
---|
| 537 | {
|
---|
| 538 | #if defined(VBOX_STRICT)
|
---|
| 539 | int rc = PDMCritSectEnterDebug(pVM, &pVM->pgm.s.CritSectX, VINF_SUCCESS, (uintptr_t)ASMReturnAddress(), RT_SRC_POS_ARGS);
|
---|
| 540 | #else
|
---|
| 541 | int rc = PDMCritSectEnter(pVM, &pVM->pgm.s.CritSectX, VINF_SUCCESS);
|
---|
| 542 | #endif
|
---|
| 543 | if (RT_SUCCESS(rc))
|
---|
| 544 | return rc;
|
---|
| 545 | if (fVoid)
|
---|
| 546 | PDM_CRITSECT_RELEASE_ASSERT_RC(pVM, &pVM->pgm.s.CritSectX, rc);
|
---|
| 547 | else
|
---|
| 548 | AssertRC(rc);
|
---|
| 549 | return rc;
|
---|
| 550 | }
|
---|
| 551 |
|
---|
| 552 |
|
---|
| 553 | void pgmUnlock(PVMCC pVM)
|
---|
| 554 | {
|
---|
| 555 | uint32_t cDeprecatedPageLocks = pVM->pgm.s.cDeprecatedPageLocks;
|
---|
| 556 | pVM->pgm.s.cDeprecatedPageLocks = 0;
|
---|
| 557 | int rc = PDMCritSectLeave(pVM, &pVM->pgm.s.CritSectX);
|
---|
| 558 | if (rc == VINF_SEM_NESTED)
|
---|
| 559 | pVM->pgm.s.cDeprecatedPageLocks = cDeprecatedPageLocks;
|
---|
| 560 | }
|
---|
| 561 |
|
---|
| 562 |
|
---|
| 563 | #if !defined(IN_R0) || defined(LOG_ENABLED)
|
---|
| 564 |
|
---|
| 565 | /** Format handler for PGMPAGE.
|
---|
| 566 | * @copydoc FNRTSTRFORMATTYPE */
|
---|
| 567 | static DECLCALLBACK(size_t) pgmFormatTypeHandlerPage(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
|
---|
| 568 | const char *pszType, void const *pvValue,
|
---|
| 569 | int cchWidth, int cchPrecision, unsigned fFlags,
|
---|
| 570 | void *pvUser)
|
---|
| 571 | {
|
---|
| 572 | size_t cch;
|
---|
| 573 | PCPGMPAGE pPage = (PCPGMPAGE)pvValue;
|
---|
| 574 | if (RT_VALID_PTR(pPage))
|
---|
| 575 | {
|
---|
| 576 | char szTmp[64+80];
|
---|
| 577 |
|
---|
| 578 | cch = 0;
|
---|
| 579 |
|
---|
| 580 | /* The single char state stuff. */
|
---|
| 581 | static const char s_achPageStates[4] = { 'Z', 'A', 'W', 'S' };
|
---|
| 582 | szTmp[cch++] = s_achPageStates[PGM_PAGE_GET_STATE_NA(pPage)];
|
---|
| 583 |
|
---|
| 584 | # define IS_PART_INCLUDED(lvl) ( !(fFlags & RTSTR_F_PRECISION) || cchPrecision == (lvl) || cchPrecision >= (lvl)+10 )
|
---|
| 585 | if (IS_PART_INCLUDED(5))
|
---|
| 586 | {
|
---|
| 587 | static const char s_achHandlerStates[4*2] = { '-', 't', 'w', 'a' , '_', 'T', 'W', 'A' };
|
---|
| 588 | szTmp[cch++] = s_achHandlerStates[ PGM_PAGE_GET_HNDL_PHYS_STATE(pPage)
|
---|
| 589 | | ((uint8_t)PGM_PAGE_IS_HNDL_PHYS_NOT_IN_HM(pPage) << 2)];
|
---|
| 590 | }
|
---|
| 591 |
|
---|
| 592 | /* The type. */
|
---|
| 593 | if (IS_PART_INCLUDED(4))
|
---|
| 594 | {
|
---|
| 595 | szTmp[cch++] = ':';
|
---|
| 596 | static const char s_achPageTypes[8][4] = { "INV", "RAM", "MI2", "M2A", "SHA", "ROM", "MIO", "BAD" };
|
---|
| 597 | szTmp[cch++] = s_achPageTypes[PGM_PAGE_GET_TYPE_NA(pPage)][0];
|
---|
| 598 | szTmp[cch++] = s_achPageTypes[PGM_PAGE_GET_TYPE_NA(pPage)][1];
|
---|
| 599 | szTmp[cch++] = s_achPageTypes[PGM_PAGE_GET_TYPE_NA(pPage)][2];
|
---|
| 600 | }
|
---|
| 601 |
|
---|
| 602 | /* The numbers. */
|
---|
| 603 | if (IS_PART_INCLUDED(3))
|
---|
| 604 | {
|
---|
| 605 | szTmp[cch++] = ':';
|
---|
| 606 | cch += RTStrFormatNumber(&szTmp[cch], PGM_PAGE_GET_HCPHYS_NA(pPage), 16, 12, 0, RTSTR_F_ZEROPAD | RTSTR_F_64BIT);
|
---|
| 607 | }
|
---|
| 608 |
|
---|
| 609 | if (IS_PART_INCLUDED(2))
|
---|
| 610 | {
|
---|
| 611 | szTmp[cch++] = ':';
|
---|
| 612 | cch += RTStrFormatNumber(&szTmp[cch], PGM_PAGE_GET_PAGEID(pPage), 16, 7, 0, RTSTR_F_ZEROPAD | RTSTR_F_32BIT);
|
---|
| 613 | }
|
---|
| 614 |
|
---|
| 615 | if (IS_PART_INCLUDED(6))
|
---|
| 616 | {
|
---|
| 617 | szTmp[cch++] = ':';
|
---|
| 618 | static const char s_achRefs[4] = { '-', 'U', '!', 'L' };
|
---|
| 619 | szTmp[cch++] = s_achRefs[PGM_PAGE_GET_TD_CREFS_NA(pPage)];
|
---|
| 620 | cch += RTStrFormatNumber(&szTmp[cch], PGM_PAGE_GET_TD_IDX_NA(pPage), 16, 4, 0, RTSTR_F_ZEROPAD | RTSTR_F_16BIT);
|
---|
| 621 | }
|
---|
| 622 | # undef IS_PART_INCLUDED
|
---|
| 623 |
|
---|
| 624 | cch = pfnOutput(pvArgOutput, szTmp, cch);
|
---|
| 625 | }
|
---|
| 626 | else
|
---|
| 627 | cch = pfnOutput(pvArgOutput, RT_STR_TUPLE("<bad-pgmpage-ptr>"));
|
---|
| 628 | NOREF(pszType); NOREF(cchWidth); NOREF(pvUser);
|
---|
| 629 | return cch;
|
---|
| 630 | }
|
---|
| 631 |
|
---|
| 632 |
|
---|
| 633 | /** Format handler for PGMRAMRANGE.
|
---|
| 634 | * @copydoc FNRTSTRFORMATTYPE */
|
---|
| 635 | static DECLCALLBACK(size_t) pgmFormatTypeHandlerRamRange(PFNRTSTROUTPUT pfnOutput, void *pvArgOutput,
|
---|
| 636 | const char *pszType, void const *pvValue,
|
---|
| 637 | int cchWidth, int cchPrecision, unsigned fFlags,
|
---|
| 638 | void *pvUser)
|
---|
| 639 | {
|
---|
| 640 | size_t cch;
|
---|
| 641 | PGMRAMRANGE const *pRam = (PGMRAMRANGE const *)pvValue;
|
---|
| 642 | if (RT_VALID_PTR(pRam))
|
---|
| 643 | {
|
---|
| 644 | char szTmp[80];
|
---|
| 645 | cch = RTStrPrintf(szTmp, sizeof(szTmp), "%RGp-%RGp", pRam->GCPhys, pRam->GCPhysLast);
|
---|
| 646 | cch = pfnOutput(pvArgOutput, szTmp, cch);
|
---|
| 647 | }
|
---|
| 648 | else
|
---|
| 649 | cch = pfnOutput(pvArgOutput, RT_STR_TUPLE("<bad-pgmramrange-ptr>"));
|
---|
| 650 | NOREF(pszType); NOREF(cchWidth); NOREF(cchPrecision); NOREF(pvUser); NOREF(fFlags);
|
---|
| 651 | return cch;
|
---|
| 652 | }
|
---|
| 653 |
|
---|
| 654 | /** Format type andlers to be registered/deregistered. */
|
---|
| 655 | static const struct
|
---|
| 656 | {
|
---|
| 657 | char szType[24];
|
---|
| 658 | PFNRTSTRFORMATTYPE pfnHandler;
|
---|
| 659 | } g_aPgmFormatTypes[] =
|
---|
| 660 | {
|
---|
| 661 | { "pgmpage", pgmFormatTypeHandlerPage },
|
---|
| 662 | { "pgmramrange", pgmFormatTypeHandlerRamRange }
|
---|
| 663 | };
|
---|
| 664 |
|
---|
| 665 | #endif /* !IN_R0 || LOG_ENABLED */
|
---|
| 666 |
|
---|
| 667 |
|
---|
| 668 | VMMDECL(int) PGMRegisterStringFormatTypes(void)
|
---|
| 669 | {
|
---|
| 670 | #if !defined(IN_R0) || defined(LOG_ENABLED)
|
---|
| 671 | int rc = VINF_SUCCESS;
|
---|
| 672 | unsigned i;
|
---|
| 673 | for (i = 0; RT_SUCCESS(rc) && i < RT_ELEMENTS(g_aPgmFormatTypes); i++)
|
---|
| 674 | {
|
---|
| 675 | rc = RTStrFormatTypeRegister(g_aPgmFormatTypes[i].szType, g_aPgmFormatTypes[i].pfnHandler, NULL);
|
---|
| 676 | # ifdef IN_RING0
|
---|
| 677 | if (rc == VERR_ALREADY_EXISTS)
|
---|
| 678 | {
|
---|
| 679 | /* in case of cleanup failure in ring-0 */
|
---|
| 680 | RTStrFormatTypeDeregister(g_aPgmFormatTypes[i].szType);
|
---|
| 681 | rc = RTStrFormatTypeRegister(g_aPgmFormatTypes[i].szType, g_aPgmFormatTypes[i].pfnHandler, NULL);
|
---|
| 682 | }
|
---|
| 683 | # endif
|
---|
| 684 | }
|
---|
| 685 | if (RT_FAILURE(rc))
|
---|
| 686 | while (i-- > 0)
|
---|
| 687 | RTStrFormatTypeDeregister(g_aPgmFormatTypes[i].szType);
|
---|
| 688 |
|
---|
| 689 | return rc;
|
---|
| 690 | #else
|
---|
| 691 | return VINF_SUCCESS;
|
---|
| 692 | #endif
|
---|
| 693 | }
|
---|
| 694 |
|
---|
| 695 |
|
---|
| 696 | VMMDECL(void) PGMDeregisterStringFormatTypes(void)
|
---|
| 697 | {
|
---|
| 698 | #if !defined(IN_R0) || defined(LOG_ENABLED)
|
---|
| 699 | for (unsigned i = 0; i < RT_ELEMENTS(g_aPgmFormatTypes); i++)
|
---|
| 700 | RTStrFormatTypeDeregister(g_aPgmFormatTypes[i].szType);
|
---|
| 701 | #endif
|
---|
| 702 | }
|
---|
| 703 |
|
---|
| 704 |
|
---|
| 705 | VMMDECL(int) PGMGstModifyPage(PVMCPUCC pVCpu, RTGCPTR GCPtr, size_t cb, uint64_t fFlags, uint64_t fMask)
|
---|
| 706 | {
|
---|
| 707 | STAM_PROFILE_START(&pVCpu->pgm.s.Stats.CTX_MID_Z(Stat,GstModifyPage), a);
|
---|
| 708 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
| 709 |
|
---|
| 710 | /*
|
---|
| 711 | * Validate input.
|
---|
| 712 | */
|
---|
| 713 | Assert(cb);
|
---|
| 714 |
|
---|
| 715 | LogFlow(("PGMGstModifyPage %RGv %d bytes fFlags=%08llx fMask=%08llx\n", GCPtr, cb, fFlags, fMask));
|
---|
[100108] | 716 | RT_NOREF(pVCpu, GCPtr, cb, fFlags, fMask);
|
---|
[99051] | 717 |
|
---|
| 718 | AssertReleaseFailed();
|
---|
| 719 | return VERR_NOT_IMPLEMENTED;
|
---|
| 720 | }
|
---|
| 721 |
|
---|
| 722 |
|
---|
| 723 | VMMDECL(PGMMODE) PGMGetGuestMode(PVMCPU pVCpu)
|
---|
| 724 | {
|
---|
| 725 | return pVCpu->pgm.s.enmGuestMode;
|
---|
| 726 | }
|
---|
| 727 |
|
---|
| 728 |
|
---|
| 729 | VMMDECL(PGMMODE) PGMGetShadowMode(PVMCPU pVCpu)
|
---|
| 730 | {
|
---|
| 731 | return pVCpu->pgm.s.enmShadowMode;
|
---|
| 732 | }
|
---|
| 733 |
|
---|
| 734 |
|
---|
| 735 | VMMDECL(int) PGMGstGetPage(PVMCPUCC pVCpu, RTGCPTR GCPtr, PPGMPTWALK pWalk)
|
---|
| 736 | {
|
---|
| 737 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
| 738 | Assert(pWalk);
|
---|
| 739 | AssertReleaseFailed();
|
---|
| 740 | RT_NOREF(pVCpu, GCPtr, pWalk);
|
---|
| 741 | return VERR_NOT_IMPLEMENTED;
|
---|
| 742 | }
|
---|
| 743 |
|
---|
| 744 |
|
---|
| 745 | VMMDECL(int) PGMShwMakePageReadonly(PVMCPUCC pVCpu, RTGCPTR GCPtr, uint32_t fOpFlags)
|
---|
| 746 | {
|
---|
| 747 | AssertReleaseFailed();
|
---|
| 748 | RT_NOREF(pVCpu, GCPtr, fOpFlags);
|
---|
| 749 | return VERR_NOT_IMPLEMENTED;
|
---|
| 750 | }
|
---|
| 751 |
|
---|
| 752 |
|
---|
| 753 | VMMDECL(int) PGMShwMakePageWritable(PVMCPUCC pVCpu, RTGCPTR GCPtr, uint32_t fOpFlags)
|
---|
| 754 | {
|
---|
| 755 | AssertReleaseFailed();
|
---|
| 756 | RT_NOREF(pVCpu, GCPtr, fOpFlags);
|
---|
| 757 | return VERR_NOT_IMPLEMENTED;
|
---|
| 758 | }
|
---|
| 759 |
|
---|
| 760 |
|
---|
| 761 | VMMDECL(int) PGMShwMakePageNotPresent(PVMCPUCC pVCpu, RTGCPTR GCPtr, uint32_t fOpFlags)
|
---|
| 762 | {
|
---|
| 763 | AssertReleaseFailed();
|
---|
| 764 | RT_NOREF(pVCpu, GCPtr, fOpFlags);
|
---|
| 765 | return VERR_NOT_IMPLEMENTED;
|
---|
| 766 | }
|
---|
| 767 |
|
---|
| 768 |
|
---|
| 769 | VMM_INT_DECL(int) PGMHCChangeMode(PVMCC pVM, PVMCPUCC pVCpu, PGMMODE enmGuestMode, bool fForce)
|
---|
| 770 | {
|
---|
[100759] | 771 | //AssertReleaseFailed(); /** @todo Called by the PGM saved state code. */
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[99051] | 772 | RT_NOREF(pVM, pVCpu, enmGuestMode, fForce);
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[100759] | 773 | return VINF_SUCCESS;
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[99051] | 774 | }
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| 775 |
|
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| 776 |
|
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| 777 | VMMDECL(int) PGMShwGetPage(PVMCPUCC pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys)
|
---|
| 778 | {
|
---|
| 779 | AssertReleaseFailed();
|
---|
| 780 | RT_NOREF(pVCpu, GCPtr, pfFlags, pHCPhys);
|
---|
| 781 | return VERR_NOT_SUPPORTED;
|
---|
| 782 | }
|
---|
| 783 |
|
---|
| 784 |
|
---|
| 785 | int pgmR3ExitShadowModeBeforePoolFlush(PVMCPU pVCpu)
|
---|
| 786 | {
|
---|
| 787 | RT_NOREF(pVCpu);
|
---|
| 788 | return VINF_SUCCESS;
|
---|
| 789 | }
|
---|
| 790 |
|
---|
| 791 |
|
---|
| 792 | int pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu)
|
---|
| 793 | {
|
---|
| 794 | RT_NOREF(pVM, pVCpu);
|
---|
| 795 | return VINF_SUCCESS;
|
---|
| 796 | }
|
---|
| 797 |
|
---|
| 798 |
|
---|
| 799 | void pgmR3RefreshShadowModeAfterA20Change(PVMCPU pVCpu)
|
---|
| 800 | {
|
---|
| 801 | RT_NOREF(pVCpu);
|
---|
| 802 | }
|
---|
| 803 |
|
---|
| 804 |
|
---|
| 805 | int pgmGstPtWalk(PVMCPUCC pVCpu, RTGCPTR GCPtr, PPGMPTWALK pWalk, PPGMPTWALKGST pGstWalk)
|
---|
| 806 | {
|
---|
| 807 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
| 808 | AssertReleaseFailed();
|
---|
| 809 | RT_NOREF(pVCpu, GCPtr, pWalk, pGstWalk);
|
---|
| 810 | return VERR_NOT_IMPLEMENTED;
|
---|
| 811 | }
|
---|
| 812 |
|
---|
| 813 |
|
---|
| 814 | int pgmGstPtWalkNext(PVMCPUCC pVCpu, RTGCPTR GCPtr, PPGMPTWALK pWalk, PPGMPTWALKGST pGstWalk)
|
---|
| 815 | {
|
---|
| 816 | VMCPU_ASSERT_EMT(pVCpu);
|
---|
| 817 | AssertReleaseFailed();
|
---|
| 818 | RT_NOREF(pVCpu, GCPtr, pWalk, pGstWalk);
|
---|
| 819 | return VERR_NOT_IMPLEMENTED;
|
---|
[99053] | 820 | }
|
---|