| 1 | /* $Id: REMAll.cpp 12989 2008-10-06 02:15:39Z vboxsync $ */
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| 2 | /** @file
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| 3 | * REM - Recompiled Execution Monitor, all Contexts part.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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| 8 | *
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| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | * available from http://www.virtualbox.org. This file is free software;
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| 11 | * you can redistribute it and/or modify it under the terms of the GNU
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| 12 | * General Public License (GPL) as published by the Free Software
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| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 | *
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| 17 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 18 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 19 | * additional information or have any questions.
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| 20 | */
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| 21 |
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| 22 |
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| 23 | /*******************************************************************************
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| 24 | * Global Variables *
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| 25 | *******************************************************************************/
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| 26 | #define LOG_GROUP LOG_GROUP_REM
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| 27 | #include <VBox/rem.h>
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| 28 | #include <VBox/vmm.h>
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| 29 | #include "REMInternal.h"
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| 30 | #include <VBox/vm.h>
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| 31 | #include <VBox/err.h>
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| 32 | #include <VBox/log.h>
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| 33 |
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| 34 | #include <iprt/assert.h>
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| 35 |
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| 36 |
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| 37 | /**
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| 38 | * Records a invlpg instruction for replaying upon REM entry.
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| 39 | *
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| 40 | * @returns VINF_SUCCESS on success.
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| 41 | * @returns VERR_REM_FLUSHED_PAGES_OVERFLOW if a return to HC for flushing of
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| 42 | * recorded pages is required before the call can succeed.
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| 43 | * @param pVM The VM handle.
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| 44 | * @param GCPtrPage The
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| 45 | */
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| 46 | VMMDECL(int) REMNotifyInvalidatePage(PVM pVM, RTGCPTR GCPtrPage)
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| 47 | {
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| 48 | if (pVM->rem.s.cInvalidatedPages < RT_ELEMENTS(pVM->rem.s.aGCPtrInvalidatedPages))
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| 49 | {
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| 50 | /*
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| 51 | * We sync them back in REMR3State.
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| 52 | */
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| 53 | pVM->rem.s.aGCPtrInvalidatedPages[pVM->rem.s.cInvalidatedPages++] = GCPtrPage;
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| 54 | }
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| 55 | else
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| 56 | {
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| 57 | /* Tell the recompiler to flush its TLB. */
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| 58 | CPUMSetChangedFlags(pVM, CPUM_CHANGED_GLOBAL_TLB_FLUSH);
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| 59 | pVM->rem.s.cInvalidatedPages = 0;
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| 60 | }
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| 61 |
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| 62 | return VINF_SUCCESS;
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| 63 | }
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| 64 |
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| 65 |
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| 66 | /**
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| 67 | * Flushes the handler notifications by calling the host.
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| 68 | *
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| 69 | * @param pVM The VM handle.
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| 70 | */
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| 71 | static void remFlushHandlerNotifications(PVM pVM)
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| 72 | {
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| 73 | #ifdef IN_GC
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| 74 | VMMGCCallHost(pVM, VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS, 0);
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| 75 | #elif defined(IN_RING0)
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| 76 | /** @todo necessary? */
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| 77 | VMMR0CallHost(pVM, VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS, 0);
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| 78 | #else
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| 79 | AssertReleaseMsgFailed(("Ring 3 call????.\n"));
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| 80 | #endif
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| 81 | Assert(pVM->rem.s.cHandlerNotifications == 0);
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| 82 | }
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| 83 |
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| 84 |
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| 85 | /**
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| 86 | * Notification about a successful PGMR3HandlerPhysicalRegister() call.
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| 87 | *
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| 88 | * @param pVM VM Handle.
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| 89 | * @param enmType Handler type.
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| 90 | * @param GCPhys Handler range address.
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| 91 | * @param cb Size of the handler range.
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| 92 | * @param fHasHCHandler Set if the handler have a HC callback function.
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| 93 | */
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| 94 | VMMDECL(void) REMNotifyHandlerPhysicalRegister(PVM pVM, PGMPHYSHANDLERTYPE enmType, RTGCPHYS GCPhys, RTGCPHYS cb, bool fHasHCHandler)
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| 95 | {
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| 96 | if (pVM->rem.s.cHandlerNotifications >= RT_ELEMENTS(pVM->rem.s.aHandlerNotifications))
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| 97 | remFlushHandlerNotifications(pVM);
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| 98 | PREMHANDLERNOTIFICATION pRec = &pVM->rem.s.aHandlerNotifications[pVM->rem.s.cHandlerNotifications++];
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| 99 | pRec->enmKind = REMHANDLERNOTIFICATIONKIND_PHYSICAL_REGISTER;
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| 100 | pRec->u.PhysicalRegister.enmType = enmType;
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| 101 | pRec->u.PhysicalRegister.GCPhys = GCPhys;
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| 102 | pRec->u.PhysicalRegister.cb = cb;
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| 103 | pRec->u.PhysicalRegister.fHasHCHandler = fHasHCHandler;
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| 104 | VM_FF_SET(pVM, VM_FF_REM_HANDLER_NOTIFY);
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| 105 | }
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| 106 |
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| 107 |
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| 108 | /**
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| 109 | * Notification about a successful PGMR3HandlerPhysicalDeregister() operation.
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| 110 | *
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| 111 | * @param pVM VM Handle.
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| 112 | * @param enmType Handler type.
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| 113 | * @param GCPhys Handler range address.
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| 114 | * @param cb Size of the handler range.
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| 115 | * @param fHasHCHandler Set if the handler have a HC callback function.
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| 116 | * @param fRestoreAsRAM Whether the to restore it as normal RAM or as unassigned memory.
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| 117 | */
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| 118 | VMMDECL(void) REMNotifyHandlerPhysicalDeregister(PVM pVM, PGMPHYSHANDLERTYPE enmType, RTGCPHYS GCPhys, RTGCPHYS cb, bool fHasHCHandler, bool fRestoreAsRAM)
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| 119 | {
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| 120 | if (pVM->rem.s.cHandlerNotifications >= RT_ELEMENTS(pVM->rem.s.aHandlerNotifications))
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| 121 | remFlushHandlerNotifications(pVM);
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| 122 | PREMHANDLERNOTIFICATION pRec = &pVM->rem.s.aHandlerNotifications[pVM->rem.s.cHandlerNotifications++];
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| 123 | pRec->enmKind = REMHANDLERNOTIFICATIONKIND_PHYSICAL_DEREGISTER;
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| 124 | pRec->u.PhysicalDeregister.enmType = enmType;
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| 125 | pRec->u.PhysicalDeregister.GCPhys = GCPhys;
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| 126 | pRec->u.PhysicalDeregister.cb = cb;
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| 127 | pRec->u.PhysicalDeregister.fHasHCHandler = fHasHCHandler;
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| 128 | pRec->u.PhysicalDeregister.fRestoreAsRAM = fRestoreAsRAM;
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| 129 | VM_FF_SET(pVM, VM_FF_REM_HANDLER_NOTIFY);
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| 130 | }
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| 131 |
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| 132 |
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| 133 | /**
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| 134 | * Notification about a successful PGMR3HandlerPhysicalModify() call.
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| 135 | *
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| 136 | * @param pVM VM Handle.
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| 137 | * @param enmType Handler type.
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| 138 | * @param GCPhysOld Old handler range address.
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| 139 | * @param GCPhysNew New handler range address.
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| 140 | * @param cb Size of the handler range.
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| 141 | * @param fHasHCHandler Set if the handler have a HC callback function.
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| 142 | * @param fRestoreAsRAM Whether the to restore it as normal RAM or as unassigned memory.
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| 143 | */
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| 144 | VMMDECL(void) REMNotifyHandlerPhysicalModify(PVM pVM, PGMPHYSHANDLERTYPE enmType, RTGCPHYS GCPhysOld, RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fHasHCHandler, bool fRestoreAsRAM)
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| 145 | {
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| 146 | if (pVM->rem.s.cHandlerNotifications >= RT_ELEMENTS(pVM->rem.s.aHandlerNotifications))
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| 147 | remFlushHandlerNotifications(pVM);
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| 148 | PREMHANDLERNOTIFICATION pRec = &pVM->rem.s.aHandlerNotifications[pVM->rem.s.cHandlerNotifications++];
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| 149 | pRec->enmKind = REMHANDLERNOTIFICATIONKIND_PHYSICAL_MODIFY;
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| 150 | pRec->u.PhysicalModify.enmType = enmType;
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| 151 | pRec->u.PhysicalModify.GCPhysOld = GCPhysOld;
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| 152 | pRec->u.PhysicalModify.GCPhysNew = GCPhysNew;
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| 153 | pRec->u.PhysicalModify.cb = cb;
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| 154 | pRec->u.PhysicalModify.fHasHCHandler = fHasHCHandler;
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| 155 | pRec->u.PhysicalModify.fRestoreAsRAM = fRestoreAsRAM;
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| 156 | VM_FF_SET(pVM, VM_FF_REM_HANDLER_NOTIFY);
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| 157 | }
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| 158 |
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