| 1 | /* $Id: PGMShw.h 9106 2008-05-26 09:06:33Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * VBox - Page Manager / Monitor, Shadow Paging Template.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
|
|---|
| 18 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
|
|---|
| 19 | * additional information or have any questions.
|
|---|
| 20 | */
|
|---|
| 21 |
|
|---|
| 22 | /*******************************************************************************
|
|---|
| 23 | * Defined Constants And Macros *
|
|---|
| 24 | *******************************************************************************/
|
|---|
| 25 | #undef SHWPT
|
|---|
| 26 | #undef PSHWPT
|
|---|
| 27 | #undef SHWPTE
|
|---|
| 28 | #undef PSHWPTE
|
|---|
| 29 | #undef SHWPD
|
|---|
| 30 | #undef PSHWPD
|
|---|
| 31 | #undef SHWPDE
|
|---|
| 32 | #undef PSHWPDE
|
|---|
| 33 | #undef SHW_PDE_PG_MASK
|
|---|
| 34 | #undef SHW_PD_SHIFT
|
|---|
| 35 | #undef SHW_PD_MASK
|
|---|
| 36 | #undef SHW_PTE_PG_MASK
|
|---|
| 37 | #undef SHW_PT_SHIFT
|
|---|
| 38 | #undef SHW_PT_MASK
|
|---|
| 39 | #undef SHW_POOL_ROOT_IDX
|
|---|
| 40 |
|
|---|
| 41 | #if PGM_SHW_TYPE == PGM_TYPE_32BIT
|
|---|
| 42 | # define SHWPT X86PT
|
|---|
| 43 | # define PSHWPT PX86PT
|
|---|
| 44 | # define SHWPTE X86PTE
|
|---|
| 45 | # define PSHWPTE PX86PTE
|
|---|
| 46 | # define SHWPD X86PD
|
|---|
| 47 | # define PSHWPD PX86PD
|
|---|
| 48 | # define SHWPDE X86PDE
|
|---|
| 49 | # define PSHWPDE PX86PDE
|
|---|
| 50 | # define SHW_PDE_PG_MASK X86_PDE_PG_MASK
|
|---|
| 51 | # define SHW_PD_SHIFT X86_PD_SHIFT
|
|---|
| 52 | # define SHW_PD_MASK X86_PD_MASK
|
|---|
| 53 | # define SHW_PTE_PG_MASK X86_PTE_PG_MASK
|
|---|
| 54 | # define SHW_PT_SHIFT X86_PT_SHIFT
|
|---|
| 55 | # define SHW_PT_MASK X86_PT_MASK
|
|---|
| 56 | # define SHW_POOL_ROOT_IDX PGMPOOL_IDX_PD
|
|---|
| 57 | #else
|
|---|
| 58 | # define SHWPT X86PTPAE
|
|---|
| 59 | # define PSHWPT PX86PTPAE
|
|---|
| 60 | # define SHWPTE X86PTEPAE
|
|---|
| 61 | # define PSHWPTE PX86PTEPAE
|
|---|
| 62 | # define SHWPD X86PDPAE
|
|---|
| 63 | # define PSHWPD PX86PDPAE
|
|---|
| 64 | # define SHWPDE X86PDEPAE
|
|---|
| 65 | # define PSHWPDE PX86PDEPAE
|
|---|
| 66 | # define SHW_PDE_PG_MASK X86_PDE_PAE_PG_MASK
|
|---|
| 67 | # define SHW_PD_SHIFT X86_PD_PAE_SHIFT
|
|---|
| 68 | # define SHW_PD_MASK X86_PD_PAE_MASK
|
|---|
| 69 | # define SHW_PTE_PG_MASK X86_PTE_PAE_PG_MASK
|
|---|
| 70 | # define SHW_PT_SHIFT X86_PT_PAE_SHIFT
|
|---|
| 71 | # define SHW_PT_MASK X86_PT_PAE_MASK
|
|---|
| 72 | # define SHW_POOL_ROOT_IDX PGMPOOL_IDX_PAE_PD
|
|---|
| 73 | #endif
|
|---|
| 74 |
|
|---|
| 75 |
|
|---|
| 76 | /*******************************************************************************
|
|---|
| 77 | * Internal Functions *
|
|---|
| 78 | *******************************************************************************/
|
|---|
| 79 | __BEGIN_DECLS
|
|---|
| 80 | /* r3 */
|
|---|
| 81 | PGM_SHW_DECL(int, InitData)(PVM pVM, PPGMMODEDATA pModeData, bool fResolveGCAndR0);
|
|---|
| 82 | PGM_SHW_DECL(int, Enter)(PVM pVM);
|
|---|
| 83 | PGM_SHW_DECL(int, Relocate)(PVM pVM, RTGCUINTPTR offDelta);
|
|---|
| 84 | PGM_SHW_DECL(int, Exit)(PVM pVM);
|
|---|
| 85 |
|
|---|
| 86 | /* all */
|
|---|
| 87 | PGM_SHW_DECL(int, GetPage)(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys);
|
|---|
| 88 | PGM_SHW_DECL(int, ModifyPage)(PVM pVM, RTGCUINTPTR GCPtr, size_t cb, uint64_t fFlags, uint64_t fMask);
|
|---|
| 89 | __END_DECLS
|
|---|
| 90 |
|
|---|
| 91 |
|
|---|
| 92 | /**
|
|---|
| 93 | * Initializes the guest bit of the paging mode data.
|
|---|
| 94 | *
|
|---|
| 95 | * @returns VBox status code.
|
|---|
| 96 | * @param pVM The VM handle.
|
|---|
| 97 | * @param fResolveGCAndR0 Indicate whether or not GC and Ring-0 symbols can be resolved now.
|
|---|
| 98 | * This is used early in the init process to avoid trouble with PDM
|
|---|
| 99 | * not being initialized yet.
|
|---|
| 100 | */
|
|---|
| 101 | PGM_SHW_DECL(int, InitData)(PVM pVM, PPGMMODEDATA pModeData, bool fResolveGCAndR0)
|
|---|
| 102 | {
|
|---|
| 103 | Assert(pModeData->uShwType == PGM_SHW_TYPE || pModeData->uShwType == PGM_TYPE_NESTED);
|
|---|
| 104 |
|
|---|
| 105 | /* Ring-3 */
|
|---|
| 106 | pModeData->pfnR3ShwRelocate = PGM_SHW_NAME(Relocate);
|
|---|
| 107 | pModeData->pfnR3ShwExit = PGM_SHW_NAME(Exit);
|
|---|
| 108 | pModeData->pfnR3ShwGetPage = PGM_SHW_NAME(GetPage);
|
|---|
| 109 | pModeData->pfnR3ShwModifyPage = PGM_SHW_NAME(ModifyPage);
|
|---|
| 110 |
|
|---|
| 111 | if (fResolveGCAndR0)
|
|---|
| 112 | {
|
|---|
| 113 | int rc;
|
|---|
| 114 |
|
|---|
| 115 | #if PGM_SHW_TYPE != PGM_TYPE_AMD64 && PGM_SHW_TYPE != PGM_TYPE_NESTED /* No AMD64 for traditional virtualization, only VT-x and AMD-V. */
|
|---|
| 116 | /* GC */
|
|---|
| 117 | rc = PDMR3GetSymbolGC(pVM, NULL, PGM_SHW_NAME_GC_STR(GetPage), &pModeData->pfnGCShwGetPage);
|
|---|
| 118 | AssertMsgRCReturn(rc, ("%s -> rc=%Vrc\n", PGM_SHW_NAME_GC_STR(GetPage), rc), rc);
|
|---|
| 119 | rc = PDMR3GetSymbolGC(pVM, NULL, PGM_SHW_NAME_GC_STR(ModifyPage), &pModeData->pfnGCShwModifyPage);
|
|---|
| 120 | AssertMsgRCReturn(rc, ("%s -> rc=%Vrc\n", PGM_SHW_NAME_GC_STR(ModifyPage), rc), rc);
|
|---|
| 121 | #endif /* Not AMD64 shadow paging. */
|
|---|
| 122 |
|
|---|
| 123 | /* Ring-0 */
|
|---|
| 124 | rc = PDMR3GetSymbolR0(pVM, NULL, PGM_SHW_NAME_R0_STR(GetPage), &pModeData->pfnR0ShwGetPage);
|
|---|
| 125 | AssertMsgRCReturn(rc, ("%s -> rc=%Vrc\n", PGM_SHW_NAME_R0_STR(GetPage), rc), rc);
|
|---|
| 126 | rc = PDMR3GetSymbolR0(pVM, NULL, PGM_SHW_NAME_R0_STR(ModifyPage), &pModeData->pfnR0ShwModifyPage);
|
|---|
| 127 | AssertMsgRCReturn(rc, ("%s -> rc=%Vrc\n", PGM_SHW_NAME_R0_STR(ModifyPage), rc), rc);
|
|---|
| 128 | }
|
|---|
| 129 | return VINF_SUCCESS;
|
|---|
| 130 | }
|
|---|
| 131 |
|
|---|
| 132 | /**
|
|---|
| 133 | * Enters the shadow mode.
|
|---|
| 134 | *
|
|---|
| 135 | * @returns VBox status code.
|
|---|
| 136 | * @param pVM VM handle.
|
|---|
| 137 | */
|
|---|
| 138 | PGM_SHW_DECL(int, Enter)(PVM pVM)
|
|---|
| 139 | {
|
|---|
| 140 | #if PGM_SHW_MODE == PGM_MODE_AMD64
|
|---|
| 141 | /*
|
|---|
| 142 | * Set the RW, US and A flags for the fixed PDPEs.
|
|---|
| 143 | */
|
|---|
| 144 | #endif
|
|---|
| 145 | return VINF_SUCCESS;
|
|---|
| 146 | }
|
|---|
| 147 |
|
|---|
| 148 |
|
|---|
| 149 | /**
|
|---|
| 150 | * Relocate any GC pointers related to shadow mode paging.
|
|---|
| 151 | *
|
|---|
| 152 | * @returns VBox status code.
|
|---|
| 153 | * @param pVM The VM handle.
|
|---|
| 154 | * @param offDelta The reloation offset.
|
|---|
| 155 | */
|
|---|
| 156 | PGM_SHW_DECL(int, Relocate)(PVM pVM, RTGCUINTPTR offDelta)
|
|---|
| 157 | {
|
|---|
| 158 | /* nothing special to do here - InitData does the job. */
|
|---|
| 159 | return VINF_SUCCESS;
|
|---|
| 160 | }
|
|---|
| 161 |
|
|---|
| 162 |
|
|---|
| 163 | /**
|
|---|
| 164 | * Exits the shadow mode.
|
|---|
| 165 | *
|
|---|
| 166 | * @returns VBox status code.
|
|---|
| 167 | * @param pVM VM handle.
|
|---|
| 168 | */
|
|---|
| 169 | PGM_SHW_DECL(int, Exit)(PVM pVM)
|
|---|
| 170 | {
|
|---|
| 171 | #if PGM_SHW_MODE == PGM_MODE_AMD64
|
|---|
| 172 | /*
|
|---|
| 173 | * Clear the RW, US and A flags for the fixed PDPEs.
|
|---|
| 174 | */
|
|---|
| 175 | #endif
|
|---|
| 176 |
|
|---|
| 177 | return VINF_SUCCESS;
|
|---|
| 178 | }
|
|---|
| 179 |
|
|---|
| 180 |
|
|---|
| 181 |
|
|---|
