VBox/VMM/PGMBth.h

	PGMBth.h revision 1e3576bc616045a5585190fcbc221648d17b23af
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/* $Id$ */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/** @file
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * VBox - Page Manager / Monitor, Shadow+Guest Paging Template.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/*
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Copyright (C) 2006-2007 Sun Microsystems, Inc.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * available from http://www.virtualbox.org. This file is free software;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * you can redistribute it and/or modify it under the terms of the GNU
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * General Public License (GPL) as published by the Free Software
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync *
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * additional information or have any questions.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/*******************************************************************************
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync*   Internal Functions                                                         *
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync*******************************************************************************/
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync__BEGIN_DECLS
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, InitData)(PVM pVM, PPGMMODEDATA pModeData, bool fResolveGCAndR0);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, Enter)(PVM pVM, RTGCPHYS GCPhysCR3);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, Relocate)(PVM pVM, RTGCPTR offDelta);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
7e960d3a0a8a3a84d7aba2cca45d72b1c31cc97bvboxsyncPGM_BTH_DECL(int, Trap0eHandler)(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, SyncCR3)(PVM pVM, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, SyncPage)(PVM pVM, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, VerifyAccessSyncPage)(PVM pVM, RTGCPTR Addr, unsigned fPage, unsigned uError);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, InvalidatePage)(PVM pVM, RTGCPTR GCPtrPage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, PrefetchPage)(PVM pVM, RTGCPTR GCPtrPage);
61fa69e2bc9fc9e7490feed1c020273f3ddb238dvboxsyncPGM_BTH_DECL(unsigned, AssertCR3)(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr = 0, RTGCPTR cb = ~(RTGCPTR)0);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, MapCR3)(PVM pVM, RTGCPHYS GCPhysCR3);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, UnmapCR3)(PVM pVM);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync__END_DECLS
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
b74ca013e5f201a2dd371e6c438433ceac12af30vboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/**
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Initializes the both bit of the paging mode data.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param   pVM             The VM handle.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param   fResolveGCAndR0 Indicate whether or not GC and Ring-0 symbols can be resolved now.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *                          This is used early in the init process to avoid trouble with PDM
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *                          not being initialized yet.
223cf005b18af2c21352a70693ebaf0582f68ebcvboxsync */
223cf005b18af2c21352a70693ebaf0582f68ebcvboxsyncPGM_BTH_DECL(int, InitData)(PVM pVM, PPGMMODEDATA pModeData, bool fResolveGCAndR0)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync{
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    Assert(pModeData->uShwType == PGM_SHW_TYPE); Assert(pModeData->uGstType == PGM_GST_TYPE);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    /* Ring 3 */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    pModeData->pfnR3BthRelocate             = PGM_BTH_NAME(Relocate);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    pModeData->pfnR3BthSyncCR3              = PGM_BTH_NAME(SyncCR3);
afed5ab737f4aacfae3fe73776f40e989190a7cavboxsync    pModeData->pfnR3BthInvalidatePage       = PGM_BTH_NAME(InvalidatePage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    pModeData->pfnR3BthSyncPage             = PGM_BTH_NAME(SyncPage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    pModeData->pfnR3BthPrefetchPage         = PGM_BTH_NAME(PrefetchPage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    pModeData->pfnR3BthVerifyAccessSyncPage = PGM_BTH_NAME(VerifyAccessSyncPage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#ifdef VBOX_STRICT
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    pModeData->pfnR3BthAssertCR3            = PGM_BTH_NAME(AssertCR3);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#endif
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    pModeData->pfnR3BthMapCR3               = PGM_BTH_NAME(MapCR3);
0174432b2b1a760b89840ba696f7ba51def65dddvboxsync    pModeData->pfnR3BthUnmapCR3             = PGM_BTH_NAME(UnmapCR3);
2daaccf68be3773aee600c5c3e48bcf5401418a6vboxsync
0174432b2b1a760b89840ba696f7ba51def65dddvboxsync    if (fResolveGCAndR0)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    {
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        int rc;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#if PGM_SHW_TYPE != PGM_TYPE_AMD64 && PGM_SHW_TYPE != PGM_TYPE_NESTED && PGM_SHW_TYPE != PGM_TYPE_EPT /* No AMD64 for traditional virtualization, only VT-x and AMD-V. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        /* GC */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(Trap0eHandler),       &pModeData->pfnRCBthTrap0eHandler);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(Trap0eHandler),  rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(InvalidatePage),      &pModeData->pfnRCBthInvalidatePage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(InvalidatePage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(SyncCR3),             &pModeData->pfnRCBthSyncCR3);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(SyncPage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(SyncPage),            &pModeData->pfnRCBthSyncPage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(SyncPage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(PrefetchPage),        &pModeData->pfnRCBthPrefetchPage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(PrefetchPage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(VerifyAccessSyncPage),&pModeData->pfnRCBthVerifyAccessSyncPage);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(VerifyAccessSyncPage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync# ifdef VBOX_STRICT
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(AssertCR3),           &pModeData->pfnRCBthAssertCR3);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(AssertCR3), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync# endif
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(MapCR3),              &pModeData->pfnRCBthMapCR3);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(MapCR3), rc), rc);
7e960d3a0a8a3a84d7aba2cca45d72b1c31cc97bvboxsync        rc = PDMR3LdrGetSymbolRC(pVM, NULL,       PGM_BTH_NAME_RC_STR(UnmapCR3),            &pModeData->pfnRCBthUnmapCR3);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_RC_STR(UnmapCR3), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#endif /* Not AMD64 shadow paging. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        /* Ring 0 */
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(Trap0eHandler),       &pModeData->pfnR0BthTrap0eHandler);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(Trap0eHandler),  rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(InvalidatePage),      &pModeData->pfnR0BthInvalidatePage);
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(InvalidatePage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(SyncCR3),             &pModeData->pfnR0BthSyncCR3);
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(SyncCR3), rc), rc);
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(SyncPage),            &pModeData->pfnR0BthSyncPage);
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(SyncPage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(PrefetchPage),        &pModeData->pfnR0BthPrefetchPage);
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(PrefetchPage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(VerifyAccessSyncPage),&pModeData->pfnR0BthVerifyAccessSyncPage);
7e960d3a0a8a3a84d7aba2cca45d72b1c31cc97bvboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(VerifyAccessSyncPage), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#ifdef VBOX_STRICT
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(AssertCR3),           &pModeData->pfnR0BthAssertCR3);
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(AssertCR3), rc), rc);
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync#endif
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(MapCR3),              &pModeData->pfnR0BthMapCR3);
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(MapCR3), rc), rc);
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        rc = PDMR3LdrGetSymbolR0(pVM, NULL,       PGM_BTH_NAME_R0_STR(UnmapCR3),            &pModeData->pfnR0BthUnmapCR3);
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        AssertMsgRCReturn(rc, ("%s -> rc=%Rrc\n", PGM_BTH_NAME_R0_STR(UnmapCR3), rc), rc);
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    }
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync    return VINF_SUCCESS;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync}
fdea543f71872a3ec3909536a4fce37ab7aa3a8bvboxsync
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync
fdea543f71872a3ec3909536a4fce37ab7aa3a8bvboxsync/**
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync * Enters the shadow+guest mode.
fdea543f71872a3ec3909536a4fce37ab7aa3a8bvboxsync *
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync * @returns VBox status code.
fdea543f71872a3ec3909536a4fce37ab7aa3a8bvboxsync * @param   pVM         VM handle.
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync * @param   GCPhysCR3   The physical address from the CR3 register.
8f7bc6ad2b7bbcb4b3b96248cd2478e45f2e3b88vboxsync */
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsyncPGM_BTH_DECL(int, Enter)(PVM pVM, RTGCPHYS GCPhysCR3)
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync{
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#ifdef VBOX_WITH_PGMPOOL_PAGING_ONLY
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    /* Here we deal with allocation of the root shadow page table for real and protected mode during mode switches;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync     * Other modes rely on MapCR3/UnmapCR3 to setup the shadow root page tables.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync     */
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync# if  (   (   PGM_SHW_TYPE == PGM_TYPE_32BITS \
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync           || PGM_SHW_TYPE == PGM_TYPE_PAE    \
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync           || PGM_SHW_TYPE == PGM_TYPE_AMD64) \
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync       && (   PGM_GST_TYPE == PGM_TYPE_REAL   \
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync           || PGM_GST_TYPE == PGM_TYPE_PROT))
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync    Assert(!HWACCMIsNestedPagingActive(pVM));
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync    /* We only need shadow paging in real and protected mode for VT-x and AMD-V (excluding nested paging/EPT modes) */
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync    if (HWACCMR3IsActive(pVM))
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync    {
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        /* Free the previous root mapping if still active. */
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        PPGMPOOL pPool = pVM->pgm.s.CTX_SUFF(pPool);
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        if (pVM->pgm.s.CTX_SUFF(pShwPageCR3))
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync        {
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync            /* It might have been freed already by a pool flush (see e.g. PGMR3MappingsUnfix). */
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync            /** @todo Coordinate this better with the pool. */
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync            if (pVM->pgm.s.CTX_SUFF(pShwPageCR3)->enmKind != PGMPOOLKIND_FREE)
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync                pgmPoolFreeByPage(pPool, pVM->pgm.s.CTX_SUFF(pShwPageCR3), pVM->pgm.s.CTX_SUFF(pShwPageCR3)->iUser, pVM->pgm.s.CTX_SUFF(pShwPageCR3)->iUserTable);
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync            pVM->pgm.s.pShwPageCR3R3 = 0;
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync            pVM->pgm.s.pShwPageCR3R0 = 0;
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync            pVM->pgm.s.pShwRootR3    = 0;
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync#  ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync            pVM->pgm.s.pShwRootR0    = 0;
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync#  endif
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync            pVM->pgm.s.HCPhysShwCR3  = 0;
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync            pVM->pgm.s.iShwUser      = 0;
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync            pVM->pgm.s.iShwUserTable = 0;
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync        }
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync        /* contruct a fake address */
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync#  if PGM_GST_TYPE == PGM_TYPE_REAL
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync        RTGCPHYS GCPhysCR3 = RT_BIT_64(63);
726fc44ad0bd65a178ad4c3ab46ebd6cd3208e99vboxsync#  else
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync        RTGCPHYS GCPhysCR3 = RT_BIT_64(63) | RT_BIT_64(62);
26824086a3f6b36cd911058f1d9b4c0b944706fbvboxsync#  endif
26824086a3f6b36cd911058f1d9b4c0b944706fbvboxsync        pVM->pgm.s.iShwUser      = SHW_POOL_ROOT_IDX;
26824086a3f6b36cd911058f1d9b4c0b944706fbvboxsync        pVM->pgm.s.iShwUserTable = GCPhysCR3 >> PAGE_SHIFT;
68ef804c4ec232c58e2c03c8fc6afe3765c5c0d1vboxsync        int rc = pgmPoolAlloc(pVM, GCPhysCR3, BTH_PGMPOOLKIND_ROOT, pVM->pgm.s.iShwUser, pVM->pgm.s.iShwUserTable, &pVM->pgm.s.CTX_SUFF(pShwPageCR3));
68ef804c4ec232c58e2c03c8fc6afe3765c5c0d1vboxsync        if (rc == VERR_PGM_POOL_FLUSHED)
68ef804c4ec232c58e2c03c8fc6afe3765c5c0d1vboxsync        {
3080f6c0871099df43a4e91b31894d9c2b1369a8vboxsync            Log(("Bth-Enter: PGM pool flushed -> signal sync cr3\n"));
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync            Assert(VM_FF_ISSET(pVM, VM_FF_PGM_SYNC_CR3));
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync            return VINF_PGM_SYNC_CR3;
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync        }
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync        AssertRCReturn(rc, rc);
26824086a3f6b36cd911058f1d9b4c0b944706fbvboxsync#  ifdef IN_RING0
26824086a3f6b36cd911058f1d9b4c0b944706fbvboxsync        pVM->pgm.s.pShwPageCR3R3 = MMHyperCCToR3(pVM, pVM->pgm.s.CTX_SUFF(pShwPageCR3));
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync#  else
b8aaccdbdd143967110d499670605dd7ff6ecc72vboxsync        pVM->pgm.s.pShwPageCR3R0 = MMHyperCCToR0(pVM, pVM->pgm.s.CTX_SUFF(pShwPageCR3));
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync#  endif
50df3da42ff6589b0ecc4f50f2288811bc370186vboxsync        pVM->pgm.s.pShwRootR3    = (R3PTRTYPE(void *))pVM->pgm.s.CTX_SUFF(pShwPageCR3)->pvPageR3;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        Assert(pVM->pgm.s.pShwRootR3);
7e960d3a0a8a3a84d7aba2cca45d72b1c31cc97bvboxsync#  ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        pVM->pgm.s.pShwRootR0    = (R0PTRTYPE(void *))PGMPOOL_PAGE_2_PTR(pPool->CTX_SUFF(pVM), pVM->pgm.s.CTX_SUFF(pShwPageCR3));
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#  endif
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync        pVM->pgm.s.HCPhysShwCR3  = pVM->pgm.s.CTX_SUFF(pShwPageCR3)->Core.Key;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    }
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync# endif
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#else
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    /* nothing special to do here - InitData does the job. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync#endif
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    return VINF_SUCCESS;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync}
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync/**
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * Relocate any GC pointers related to shadow mode paging.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync *
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @returns VBox status code.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param   pVM         The VM handle.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync * @param   offDelta    The reloation offset.
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsyncPGM_BTH_DECL(int, Relocate)(PVM pVM, RTGCPTR offDelta)
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync{
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    /* nothing special to do here - InitData does the job. */
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync    return VINF_SUCCESS;
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync}
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync
d408b82da0773c7e8cd4b3a01cb8a065a2c73a2dvboxsync