| 1 | /* $Id: PGMGstDefs.h 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBox - Page Manager, Guest Paging Template - All context code.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2006-2024 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 | /*******************************************************************************
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| 30 | * Defined Constants And Macros *
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| 31 | *******************************************************************************/
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| 32 | #undef GST_ATOMIC_OR
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| 33 | #undef GSTPT
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| 34 | #undef PGSTPT
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| 35 | #undef GSTPTE
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| 36 | #undef PGSTPTE
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| 37 | #undef GSTPD
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| 38 | #undef PGSTPD
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| 39 | #undef GSTPDE
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| 40 | #undef PGSTPDE
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| 41 | #undef GSTPTWALK
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| 42 | #undef PGSTPTWALK
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| 43 | #undef PCGSTPTWALK
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| 44 | #undef GST_BIG_PAGE_SIZE
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| 45 | #undef GST_BIG_PAGE_OFFSET_MASK
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| 46 | #undef GST_GIGANT_PAGE_SIZE
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| 47 | #undef GST_GIGANT_PAGE_OFFSET_MASK
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| 48 | #undef GST_PDPE_BIG_PG_MASK
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| 49 | #undef GST_PDE_PG_MASK
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| 50 | #undef GST_PDE_BIG_PG_MASK
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| 51 | #undef GST_PD_SHIFT
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| 52 | #undef GST_PD_MASK
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| 53 | #undef GST_PTE_PG_MASK
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| 54 | #undef GST_GET_PTE_SHW_FLAGS
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| 55 | #undef GST_PT_SHIFT
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| 56 | #undef GST_PT_MASK
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| 57 | #undef GST_CR3_PAGE_MASK
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| 58 | #undef GST_PDPE_ENTRIES
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| 59 | #undef GST_PDPT_SHIFT
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| 60 | #undef GST_PDPT_MASK
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| 61 | #undef GST_PDPE_PG_MASK
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| 62 | #undef GST_GET_PTE_GCPHYS
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| 63 | #undef GST_GET_PDE_GCPHYS
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| 64 | #undef GST_GET_BIG_PDE_GCPHYS
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| 65 | #undef GST_GET_BIG_PDPE_GCPHYS
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| 66 | #undef GST_GET_PDE_SHW_FLAGS
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| 67 | #undef GST_GET_BIG_PDE_SHW_FLAGS
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| 68 | #undef GST_GET_BIG_PDE_SHW_FLAGS_4_PTE
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| 69 | #undef GST_IS_PTE_VALID
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| 70 | #undef GST_IS_PDE_VALID
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| 71 | #undef GST_IS_BIG_PDE_VALID
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| 72 | #undef GST_IS_PDPE_VALID
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| 73 | #undef GST_IS_BIG_PDPE_VALID
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| 74 | #undef GST_IS_PML4E_VALID
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| 75 | #undef GST_IS_PGENTRY_PRESENT
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| 76 | #undef GST_IS_PSE_ACTIVE
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| 77 | #undef GST_IS_NX_ACTIVE
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| 78 | #undef BTH_IS_NP_ACTIVE
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| 79 |
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| 80 | #if PGM_GST_TYPE == PGM_TYPE_REAL \
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| 81 | || PGM_GST_TYPE == PGM_TYPE_PROT
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| 82 |
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| 83 | # if PGM_SHW_TYPE == PGM_TYPE_EPT
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| 84 | # define GST_ATOMIC_OR(a_pu, a_fFlags) ASMAtomicOrU64((a_pu), (a_fFlags))
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| 85 | # define GSTPT X86PTPAE
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| 86 | # define PGSTPT PX86PTPAE
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| 87 | # define GSTPTE X86PTEPAE
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| 88 | # define PGSTPTE PX86PTEPAE
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| 89 | # define GSTPD X86PDPAE
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| 90 | # define PGSTPD PX86PDPAE
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| 91 | # define GSTPDE X86PDEPAE
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| 92 | # define PGSTPDE PX86PDEPAE
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| 93 | # define GST_PTE_PG_MASK X86_PTE_PAE_PG_MASK
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| 94 | # define GST_IS_NX_ACTIVE(pVCpu) (true && This_should_perhaps_not_be_used_in_this_context)
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| 95 | # define BTH_IS_NP_ACTIVE(pVM) (true)
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| 96 | # else
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| 97 | # if PGM_SHW_TYPE == PGM_TYPE_32BIT /* Same as shadow paging, but no PGMSHWPTEPAE. */
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| 98 | # define GST_ATOMIC_OR(a_pu, a_fFlags) ASMAtomicOrU32((a_pu), (a_fFlags))
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| 99 | # define GSTPT X86PT
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| 100 | # define PGSTPT PX86PT
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| 101 | # define GSTPTE X86PTE
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| 102 | # define PGSTPTE PX86PTE
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| 103 | # define GSTPD X86PD
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| 104 | # define PGSTPD PX86PD
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| 105 | # define GSTPDE X86PDE
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| 106 | # define PGSTPDE PX86PDE
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| 107 | # define GST_PTE_PG_MASK X86_PTE_PG_MASK
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| 108 | # else
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| 109 | # define GST_ATOMIC_OR(a_pu, a_fFlags) ASMAtomicOrU64((a_pu), (a_fFlags))
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| 110 | # define GSTPT X86PTPAE
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| 111 | # define PGSTPT PX86PTPAE
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| 112 | # define GSTPTE X86PTEPAE
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| 113 | # define PGSTPTE PX86PTEPAE
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| 114 | # define GSTPD X86PDPAE
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| 115 | # define PGSTPD PX86PDPAE
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| 116 | # define GSTPDE X86PDEPAE
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| 117 | # define PGSTPDE PX86PDEPAE
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| 118 | # define GST_PTE_PG_MASK X86_PTE_PAE_PG_MASK
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| 119 | # endif
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| 120 | # define GST_IS_NX_ACTIVE(pVCpu) (pgmGstIsNoExecuteActive(pVCpu))
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| 121 | # if PGM_GST_TYPE == PGM_TYPE_PROT /* (comment at top of PGMAllBth.h) */
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| 122 | # define BTH_IS_NP_ACTIVE(pVM) (pVM->pgm.s.fNestedPaging)
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| 123 | # else
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| 124 | # define BTH_IS_NP_ACTIVE(pVM) (false)
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| 125 | # endif
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| 126 | # endif
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| 127 | # define GST_GET_PTE_GCPHYS(Pte) PGM_A20_APPLY(pVCpu, ((Pte).u & GST_PTE_PG_MASK))
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| 128 | # define GST_GET_PDE_GCPHYS(Pde) (true && This_should_perhaps_not_be_used_in_this_context) //??
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| 129 | # define GST_GET_BIG_PDE_GCPHYS(Pde) (true && This_should_perhaps_not_be_used_in_this_context) //??
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| 130 | # define GST_GET_PTE_SHW_FLAGS(pVCpu, Pte) ((Pte).u & (X86_PTE_P | X86_PTE_RW | X86_PTE_US | X86_PTE_A | X86_PTE_D | X86_PTE_G)) /**< @todo Could return P|RW|US|A|D here without consulting the PTE. */
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| 131 | # define GST_GET_PDE_SHW_FLAGS(pVCpu, Pde) (true && This_should_perhaps_not_be_used_in_this_context) //??
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| 132 | # define GST_GET_BIG_PDE_SHW_FLAGS(pVCpu, Pde) (true && This_should_perhaps_not_be_used_in_this_context) //??
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| 133 | # define GST_GET_BIG_PDE_SHW_FLAGS_4_PTE(pVCpu, Pde) (true && This_should_perhaps_not_be_used_in_this_context) //??
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| 134 | # define GST_IS_PTE_VALID(pVCpu, Pte) (true)
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| 135 | # define GST_IS_PDE_VALID(pVCpu, Pde) (true)
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| 136 | # define GST_IS_BIG_PDE_VALID(pVCpu, Pde) (true)
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| 137 | # define GST_IS_PDPE_VALID(pVCpu, Pdpe) (true)
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| 138 | # define GST_IS_BIG_PDPE_VALID(pVCpu, Pdpe) (true)
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| 139 | # define GST_IS_PML4E_VALID(pVCpu, Pml4e) (true)
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| 140 | # define GST_IS_PGENTRY_PRESENT(pVCpu, Pge) ((Pge.u) & X86_PTE_P)
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| 141 | # define GST_IS_PSE_ACTIVE(pVCpu) (false && This_should_not_be_used_in_this_context)
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| 142 |
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| 143 | #elif PGM_GST_TYPE == PGM_TYPE_32BIT
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| 144 | # define GST_ATOMIC_OR(a_pu, a_fFlags) ASMAtomicOrU32((a_pu), (a_fFlags))
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| 145 | # define GSTPT X86PT
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| 146 | # define PGSTPT PX86PT
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| 147 | # define GSTPTE X86PTE
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| 148 | # define PGSTPTE PX86PTE
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| 149 | # define GSTPD X86PD
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| 150 | # define PGSTPD PX86PD
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| 151 | # define GSTPDE X86PDE
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| 152 | # define PGSTPDE PX86PDE
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| 153 | # define GSTPTWALK PGMPTWALKGST32BIT
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| 154 | # define PGSTPTWALK PPGMPTWALKGST32BIT
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| 155 | # define PCGSTPTWALK PCPGMPTWALKGST32BIT
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| 156 | # define GST_BIG_PAGE_SIZE X86_PAGE_4M_SIZE
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| 157 | # define GST_BIG_PAGE_OFFSET_MASK X86_PAGE_4M_OFFSET_MASK
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| 158 | # define GST_PDE_PG_MASK X86_PDE_PG_MASK
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| 159 | # define GST_PDE_BIG_PG_MASK X86_PDE4M_PG_MASK
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| 160 | # define GST_GET_PTE_GCPHYS(Pte) PGM_A20_APPLY(pVCpu, ((Pte).u & GST_PDE_PG_MASK))
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| 161 | # define GST_GET_PDE_GCPHYS(Pde) PGM_A20_APPLY(pVCpu, ((Pde).u & GST_PDE_PG_MASK))
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| 162 | # define GST_GET_BIG_PDE_GCPHYS(pVM, Pde) PGM_A20_APPLY(pVCpu, pgmGstGet4MBPhysPage((pVM), Pde))
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| 163 | # define GST_GET_PDE_SHW_FLAGS(pVCpu, Pde) ((Pde).u & (X86_PDE_P | X86_PDE_RW | X86_PDE_US | X86_PDE_A))
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| 164 | # define GST_GET_BIG_PDE_SHW_FLAGS(pVCpu, Pde) \
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| 165 | ( ((Pde).u & (X86_PDE4M_P | X86_PDE4M_RW | X86_PDE4M_US | X86_PDE4M_A)) | PGM_PDFLAGS_BIG_PAGE )
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| 166 | # define GST_GET_BIG_PDE_SHW_FLAGS_4_PTE(pVCpu, Pde) \
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| 167 | ((Pde).u & (X86_PDE4M_P | X86_PDE4M_RW | X86_PDE4M_US | X86_PDE4M_A | X86_PDE4M_D | X86_PDE4M_G))
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| 168 | # define GST_PD_SHIFT X86_PD_SHIFT
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| 169 | # define GST_PD_MASK X86_PD_MASK
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| 170 | # define GST_PTE_PG_MASK X86_PTE_PG_MASK
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| 171 | # define GST_GET_PTE_SHW_FLAGS(pVCpu, Pte) ((Pte).u & (X86_PTE_P | X86_PTE_RW | X86_PTE_US | X86_PTE_A | X86_PTE_D | X86_PTE_G))
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| 172 | # define GST_PT_SHIFT X86_PT_SHIFT
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| 173 | # define GST_PT_MASK X86_PT_MASK
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| 174 | # define GST_CR3_PAGE_MASK X86_CR3_PAGE_MASK
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| 175 | # define GST_IS_PTE_VALID(pVCpu, Pte) (true)
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| 176 | # define GST_IS_PDE_VALID(pVCpu, Pde) (true)
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| 177 | # define GST_IS_BIG_PDE_VALID(pVCpu, Pde) (!( (Pde).u & (pVCpu)->pgm.s.fGst32BitMbzBigPdeMask ))
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| 178 | //# define GST_IS_PDPE_VALID(pVCpu, Pdpe) (false)
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| 179 | //# define GST_IS_BIG_PDPE_VALID(pVCpu, Pdpe) (false)
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| 180 | //# define GST_IS_PML4E_VALID(pVCpu, Pml4e) (false)
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| 181 | # define GST_IS_PGENTRY_PRESENT(pVCpu, Pge) ((Pge.u) & X86_PTE_P)
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| 182 | # define GST_IS_PSE_ACTIVE(pVCpu) pgmGst32BitIsPageSizeExtActive(pVCpu)
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| 183 | # define GST_IS_NX_ACTIVE(pVCpu) (false)
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| 184 | # define BTH_IS_NP_ACTIVE(pVM) (false)
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| 185 |
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| 186 | #elif PGM_GST_TYPE == PGM_TYPE_PAE \
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| 187 | || PGM_GST_TYPE == PGM_TYPE_AMD64
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| 188 | # define GST_ATOMIC_OR(a_pu, a_fFlags) ASMAtomicOrU64((a_pu), (a_fFlags))
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| 189 | # define GSTPT X86PTPAE
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| 190 | # define PGSTPT PX86PTPAE
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| 191 | # define GSTPTE X86PTEPAE
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| 192 | # define PGSTPTE PX86PTEPAE
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| 193 | # define GSTPD X86PDPAE
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| 194 | # define PGSTPD PX86PDPAE
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| 195 | # define GSTPDE X86PDEPAE
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| 196 | # define PGSTPDE PX86PDEPAE
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| 197 | # define GST_BIG_PAGE_SIZE X86_PAGE_2M_SIZE
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| 198 | # define GST_BIG_PAGE_OFFSET_MASK X86_PAGE_2M_OFFSET_MASK
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| 199 | # define GST_PDE_PG_MASK X86_PDE_PAE_PG_MASK
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| 200 | # define GST_PDE_BIG_PG_MASK X86_PDE2M_PAE_PG_MASK
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| 201 | # define GST_GET_PTE_GCPHYS(Pte) PGM_A20_APPLY(pVCpu, ((Pte).u & GST_PTE_PG_MASK))
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| 202 | # define GST_GET_PDE_GCPHYS(Pde) PGM_A20_APPLY(pVCpu, ((Pde).u & GST_PDE_PG_MASK))
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| 203 | # define GST_GET_BIG_PDE_GCPHYS(pVM, Pde) PGM_A20_APPLY(pVCpu, ((Pde).u & GST_PDE_BIG_PG_MASK))
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| 204 | # define GST_GET_PTE_SHW_FLAGS(pVCpu, Pte) ((Pte).u & (pVCpu)->pgm.s.fGst64ShadowedPteMask )
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| 205 | # define GST_GET_PDE_SHW_FLAGS(pVCpu, Pde) ((Pde).u & (pVCpu)->pgm.s.fGst64ShadowedPdeMask )
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| 206 | # define GST_GET_BIG_PDE_SHW_FLAGS(pVCpu, Pde) ( ((Pde).u & (pVCpu)->pgm.s.fGst64ShadowedBigPdeMask ) | PGM_PDFLAGS_BIG_PAGE)
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| 207 | # define GST_GET_BIG_PDE_SHW_FLAGS_4_PTE(pVCpu, Pde) ((Pde).u & (pVCpu)->pgm.s.fGst64ShadowedBigPde4PteMask )
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| 208 |
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| 209 | # define GST_PD_SHIFT X86_PD_PAE_SHIFT
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| 210 | # define GST_PD_MASK X86_PD_PAE_MASK
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| 211 | # if PGM_GST_TYPE == PGM_TYPE_PAE
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| 212 | # define GSTPTWALK PGMPTWALKGSTPAE
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| 213 | # define PGSTPTWALK PPGMPTWALKGSTPAE
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| 214 | # define PCGSTPTWALK PCPGMPTWALKGSTPAE
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| 215 | # define GST_PDPE_ENTRIES X86_PG_PAE_PDPE_ENTRIES
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| 216 | # define GST_PDPE_PG_MASK X86_PDPE_PG_MASK
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| 217 | # define GST_PDPT_SHIFT X86_PDPT_SHIFT
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| 218 | # define GST_PDPT_MASK X86_PDPT_MASK_PAE
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| 219 | # define GST_PTE_PG_MASK X86_PTE_PAE_PG_MASK
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| 220 | # define GST_CR3_PAGE_MASK X86_CR3_PAE_PAGE_MASK
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| 221 | # define GST_IS_PTE_VALID(pVCpu, Pte) (!( (Pte).u & (pVCpu)->pgm.s.fGstPaeMbzPteMask ))
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| 222 | # define GST_IS_PDE_VALID(pVCpu, Pde) (!( (Pde).u & (pVCpu)->pgm.s.fGstPaeMbzPdeMask ))
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| 223 | # define GST_IS_BIG_PDE_VALID(pVCpu, Pde) (!( (Pde).u & (pVCpu)->pgm.s.fGstPaeMbzBigPdeMask ))
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| 224 | # define GST_IS_PDPE_VALID(pVCpu, Pdpe) (!( (Pdpe).u & (pVCpu)->pgm.s.fGstPaeMbzPdpeMask ))
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| 225 | //# define GST_IS_BIG_PDPE_VALID(pVCpu, Pdpe) (false)
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| 226 | //# define GST_IS_PML4E_VALID(pVCpu, Pml4e) (false)
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| 227 | # else
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| 228 | # define GSTPTWALK PGMPTWALKGSTAMD64
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| 229 | # define PGSTPTWALK PPGMPTWALKGSTAMD64
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| 230 | # define PCGSTPTWALK PCPGMPTWALKGSTAMD64
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| 231 | # define GST_PDPE_ENTRIES X86_PG_AMD64_PDPE_ENTRIES
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| 232 | # define GST_PDPT_SHIFT X86_PDPT_SHIFT
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| 233 | # define GST_PDPE_PG_MASK X86_PDPE_PG_MASK
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| 234 | # define GST_PDPT_MASK X86_PDPT_MASK_AMD64
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| 235 | # define GST_PTE_PG_MASK X86_PTE_PAE_PG_MASK
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| 236 | # define GST_CR3_PAGE_MASK X86_CR3_AMD64_PAGE_MASK
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| 237 | # define GST_IS_PTE_VALID(pVCpu, Pte) (!( (Pte).u & (pVCpu)->pgm.s.fGstAmd64MbzPteMask ))
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| 238 | # define GST_IS_PDE_VALID(pVCpu, Pde) (!( (Pde).u & (pVCpu)->pgm.s.fGstAmd64MbzPdeMask ))
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| 239 | # define GST_IS_BIG_PDE_VALID(pVCpu, Pde) (!( (Pde).u & (pVCpu)->pgm.s.fGstAmd64MbzBigPdeMask ))
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| 240 | # define GST_IS_PDPE_VALID(pVCpu, Pdpe) (!( (Pdpe).u & (pVCpu)->pgm.s.fGstAmd64MbzPdpeMask ))
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| 241 | # define GST_IS_BIG_PDPE_VALID(pVCpu, Pdpe) (!( (Pdpe).u & (pVCpu)->pgm.s.fGstAmd64MbzBigPdpeMask ))
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| 242 | # define GST_IS_PML4E_VALID(pVCpu, Pml4e) (!( (Pml4e).u & (pVCpu)->pgm.s.fGstAmd64MbzPml4eMask ))
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| 243 | # endif
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| 244 | # define GST_IS_PGENTRY_PRESENT(pVCpu, Pge) ((Pge.u) & X86_PTE_P)
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| 245 | # define GST_PT_SHIFT X86_PT_PAE_SHIFT
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| 246 | # define GST_PT_MASK X86_PT_PAE_MASK
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| 247 | # define GST_IS_PSE_ACTIVE(pVCpu) (true)
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| 248 | # define GST_IS_NX_ACTIVE(pVCpu) (pgmGstIsNoExecuteActive(pVCpu))
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| 249 | # define BTH_IS_NP_ACTIVE(pVM) (false)
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| 250 |
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| 251 | #else
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| 252 | # error "Unknown PGM_GST_TYPE."
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| 253 | #endif
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| 254 |
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