| 1 | /* $Id: NEMAll.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
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| 2 | /** @file
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| 3 | * NEM - Native execution manager, R0 and R3 context code.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2018-2024 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 | * Header Files *
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| 31 | *********************************************************************************************************************************/
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| 32 | #define LOG_GROUP LOG_GROUP_NEM
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| 33 | #include <VBox/vmm/nem.h>
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| 34 | #include "NEMInternal.h"
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| 35 | #include <VBox/vmm/vmcc.h>
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| 36 | #include <VBox/err.h>
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| 37 |
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| 38 |
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| 39 | /**
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| 40 | * Checks if this VM is in NEM mode and is long-mode capable.
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| 41 | *
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| 42 | * Use VMR3IsLongModeAllowed() instead of this, when possible.
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| 43 | *
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| 44 | * @returns true if long mode is allowed, false otherwise.
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| 45 | * @param pVM The cross context VM structure.
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| 46 | * @sa VMR3IsLongModeAllowed, HMIsLongModeAllowed
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| 47 | */
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| 48 | VMM_INT_DECL(bool) NEMHCIsLongModeAllowed(PVMCC pVM)
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| 49 | {
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| 50 | return pVM->nem.s.fAllow64BitGuests && VM_IS_NEM_ENABLED(pVM);
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| 51 | }
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| 52 |
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| 53 |
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| 54 | /**
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| 55 | * Physical access handler registration notification.
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| 56 | *
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| 57 | * @param pVM The cross context VM structure.
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| 58 | * @param enmKind The kind of access handler.
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| 59 | * @param GCPhys Start of the access handling range.
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| 60 | * @param cb Length of the access handling range.
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| 61 | *
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| 62 | * @note Called while holding down the PGM lock.
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| 63 | */
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| 64 | VMM_INT_DECL(void) NEMHCNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb)
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| 65 | {
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| 66 | #ifdef VBOX_WITH_NATIVE_NEM
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| 67 | if (VM_IS_NEM_ENABLED(pVM))
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| 68 | nemHCNativeNotifyHandlerPhysicalRegister(pVM, enmKind, GCPhys, cb);
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| 69 | #else
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| 70 | RT_NOREF(pVM, enmKind, GCPhys, cb);
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| 71 | #endif
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| 72 | }
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| 73 |
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| 74 |
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| 75 | VMM_INT_DECL(void) NEMHCNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld,
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| 76 | RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM)
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| 77 | {
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| 78 | #ifdef VBOX_WITH_NATIVE_NEM
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| 79 | if (VM_IS_NEM_ENABLED(pVM))
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| 80 | nemHCNativeNotifyHandlerPhysicalModify(pVM, enmKind, GCPhysOld, GCPhysNew, cb, fRestoreAsRAM);
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| 81 | #else
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| 82 | RT_NOREF(pVM, enmKind, GCPhysOld, GCPhysNew, cb, fRestoreAsRAM);
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| 83 | #endif
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| 84 | }
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| 85 |
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| 86 |
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| 87 | VMM_INT_DECL(int) NEMHCNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt,
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| 88 | PGMPAGETYPE enmType, uint8_t *pu2State)
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| 89 | {
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| 90 | Assert(VM_IS_NEM_ENABLED(pVM));
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| 91 | #ifdef VBOX_WITH_NATIVE_NEM
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| 92 | return nemHCNativeNotifyPhysPageAllocated(pVM, GCPhys, HCPhys, fPageProt, enmType, pu2State);
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| 93 | #else
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| 94 | RT_NOREF(pVM, GCPhys, HCPhys, fPageProt, enmType, pu2State);
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| 95 | return VINF_SUCCESS;
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| 96 | #endif
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| 97 | }
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| 98 |
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| 99 |
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| 100 | #ifndef VBOX_WITH_NATIVE_NEM
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| 101 | VMM_INT_DECL(uint32_t) NEMHCGetFeatures(PVMCC pVM)
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| 102 | {
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| 103 | RT_NOREF(pVM);
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| 104 | return 0;
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| 105 | }
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| 106 | #endif
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| 107 |
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| 108 |
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| 109 | #ifndef VBOX_WITH_NATIVE_NEM
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| 110 | VMM_INT_DECL(int) NEMImportStateOnDemand(PVMCPUCC pVCpu, uint64_t fWhat)
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| 111 | {
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| 112 | RT_NOREF(pVCpu, fWhat);
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| 113 | return VERR_NEM_IPE_9;
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| 114 | }
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| 115 | #endif
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| 116 |
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| 117 |
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| 118 | #ifndef VBOX_WITH_NATIVE_NEM
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| 119 | VMM_INT_DECL(int) NEMHCQueryCpuTick(PVMCPUCC pVCpu, uint64_t *pcTicks, uint32_t *puAux)
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| 120 | {
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| 121 | RT_NOREF(pVCpu, pcTicks, puAux);
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| 122 | AssertFailed();
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| 123 | return VERR_NEM_IPE_9;
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| 124 | }
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| 125 | #endif
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| 126 |
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| 127 |
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| 128 | #ifndef VBOX_WITH_NATIVE_NEM
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| 129 | VMM_INT_DECL(int) NEMHCResumeCpuTickOnAll(PVMCC pVM, PVMCPUCC pVCpu, uint64_t uPausedTscValue)
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| 130 | {
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| 131 | RT_NOREF(pVM, pVCpu, uPausedTscValue);
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| 132 | AssertFailed();
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| 133 | return VERR_NEM_IPE_9;
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| 134 | }
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| 135 | #endif
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| 136 |
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