/** @file * NEM - The Native Execution Manager. */ /* * Copyright (C) 2018-2022 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation, in version 3 of the * License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * The contents of this file may alternatively be used under the terms * of the Common Development and Distribution License Version 1.0 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included * in the VirtualBox distribution, in which case the provisions of the * CDDL are applicable instead of those of the GPL. * * You may elect to license modified versions of this file under the * terms and conditions of either the GPL or the CDDL or both. * * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 */ #ifndef VBOX_INCLUDED_vmm_nem_h #define VBOX_INCLUDED_vmm_nem_h #ifndef RT_WITHOUT_PRAGMA_ONCE # pragma once #endif #include #include #include RT_C_DECLS_BEGIN /** @defgroup grp_nem The Native Execution Manager API * @ingroup grp_vmm * @{ */ /** @defgroup grp_nem_r3 The NEM ring-3 Context API * @{ */ VMMR3_INT_DECL(int) NEMR3InitConfig(PVM pVM); VMMR3_INT_DECL(int) NEMR3Init(PVM pVM, bool fFallback, bool fForced); VMMR3_INT_DECL(int) NEMR3InitAfterCPUM(PVM pVM); #ifdef IN_RING3 VMMR3_INT_DECL(int) NEMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat); #endif VMMR3_INT_DECL(int) NEMR3Term(PVM pVM); VMMR3DECL(bool) NEMR3IsEnabled(PUVM pVM); VMMR3_INT_DECL(bool) NEMR3NeedSpecialTscMode(PVM pVM); VMMR3_INT_DECL(void) NEMR3Reset(PVM pVM); VMMR3_INT_DECL(void) NEMR3ResetCpu(PVMCPU pVCpu, bool fInitIpi); VMMR3DECL(const char *) NEMR3GetExitName(uint32_t uExit); VMMR3_INT_DECL(VBOXSTRICTRC) NEMR3RunGC(PVM pVM, PVMCPU pVCpu); VMMR3_INT_DECL(bool) NEMR3CanExecuteGuest(PVM pVM, PVMCPU pVCpu); VMMR3_INT_DECL(bool) NEMR3SetSingleInstruction(PVM pVM, PVMCPU pVCpu, bool fEnable); VMMR3_INT_DECL(void) NEMR3NotifyFF(PVM pVM, PVMCPU pVCpu, uint32_t fFlags); /** * Checks if dirty page tracking for MMIO2 ranges is supported. * * If it is, PGM will not install a physical write access handler for the MMIO2 * region and instead just forward dirty bit queries NEMR3QueryMmio2DirtyBits. * The enable/disable control of the tracking will be ignored, and PGM will * always set NEM_NOTIFY_PHYS_MMIO_EX_F_TRACK_DIRTY_PAGES for such ranges. * * @retval true if supported. * @retval false if not. * @param pVM The cross context VM structure. */ VMMR3_INT_DECL(bool) NEMR3IsMmio2DirtyPageTrackingSupported(PVM pVM); /** * Worker for PGMR3PhysMmio2QueryAndResetDirtyBitmap. * * @returns VBox status code. * @param pVM The cross context VM structure. * @param GCPhys The address of the MMIO2 range. * @param cb The size of the MMIO2 range. * @param uNemRange The NEM internal range number. * @param pvBitmap The output bitmap. Must be 8-byte aligned. Ignored * when @a cbBitmap is zero. * @param cbBitmap The size of the bitmap. Must be the size of the whole * MMIO2 range, rounded up to the nearest 8 bytes. * When zero only a reset is done. */ VMMR3_INT_DECL(int) NEMR3PhysMmio2QueryAndResetDirtyBitmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t uNemRange, void *pvBitmap, size_t cbBitmap); VMMR3_INT_DECL(int) NEMR3NotifyPhysRamRegister(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvR3, uint8_t *pu2State, uint32_t *puNemRange); VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMapEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags, void *pvRam, void *pvMmio2, uint8_t *pu2State, uint32_t *puNemRange); VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExMapLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags, void *pvRam, void *pvMmio2, uint32_t *puNemRange); VMMR3_INT_DECL(int) NEMR3NotifyPhysMmioExUnmap(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, uint32_t fFlags, void *pvRam, void *pvMmio2, uint8_t *pu2State, uint32_t *puNemRange); /** @name Flags for NEMR3NotifyPhysMmioExMap and NEMR3NotifyPhysMmioExUnmap. * @{ */ /** Set if the range is replacing RAM rather that unused space. */ #define NEM_NOTIFY_PHYS_MMIO_EX_F_REPLACE RT_BIT(0) /** Set if it's MMIO2 being mapped or unmapped. */ #define NEM_NOTIFY_PHYS_MMIO_EX_F_MMIO2 RT_BIT(1) /** Set if MMIO2 and dirty page tracking is configured. */ #define NEM_NOTIFY_PHYS_MMIO_EX_F_TRACK_DIRTY_PAGES RT_BIT(2) /** @} */ /** * Called very early during ROM registration, basically so an existing RAM range * can be adjusted if desired. * * It will be succeeded by a number of NEMHCNotifyPhysPageProtChanged() * calls and finally a call to NEMR3NotifyPhysRomRegisterLate(). * * @returns VBox status code * @param pVM The cross context VM structure. * @param GCPhys The ROM address (page aligned). * @param cb The size (page aligned). * @param pvPages Pointer to the ROM (RAM) pages in simplified mode * when NEM_NOTIFY_PHYS_ROM_F_REPLACE is set, otherwise * NULL. * @param fFlags NEM_NOTIFY_PHYS_ROM_F_XXX. * @param pu2State New page state or UINT8_MAX to leave as-is. * @param puNemRange Access to the relevant PGMRAMRANGE::uNemRange field. */ VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterEarly(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvPages, uint32_t fFlags, uint8_t *pu2State, uint32_t *puNemRange); /** * Called after the ROM range has been fully completed. * * This will be preceeded by a NEMR3NotifyPhysRomRegisterEarly() call as well a * number of NEMHCNotifyPhysPageProtChanged calls. * * @returns VBox status code * @param pVM The cross context VM structure. * @param GCPhys The ROM address (page aligned). * @param cb The size (page aligned). * @param pvPages Pointer to the ROM pages. * @param fFlags NEM_NOTIFY_PHYS_ROM_F_XXX. * @param pu2State Where to return the new NEM page state, UINT8_MAX * for unchanged. * @param puNemRange Access to the relevant PGMRAMRANGE::uNemRange field. */ VMMR3_INT_DECL(int) NEMR3NotifyPhysRomRegisterLate(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, void *pvPages, uint32_t fFlags, uint8_t *pu2State, uint32_t *puNemRange); /** @name Flags for NEMR3NotifyPhysRomRegisterEarly and NEMR3NotifyPhysRomRegisterLate. * @{ */ /** Set if the range is replacing RAM rather that unused space. */ #define NEM_NOTIFY_PHYS_ROM_F_REPLACE RT_BIT(1) /** Set if it's MMIO2 being mapped or unmapped. */ #define NEM_NOTIFY_PHYS_ROM_F_SHADOW RT_BIT(2) /** @} */ /** * Called when the A20 state changes. * * Windows: Hyper-V doesn't seem to offer a simple way of implementing the A20 * line features of PCs. So, we do a very minimal emulation of the HMA to make * DOS happy. * * @param pVCpu The CPU the A20 state changed on. * @param fEnabled Whether it was enabled (true) or disabled. */ VMMR3_INT_DECL(void) NEMR3NotifySetA20(PVMCPU pVCpu, bool fEnabled); VMMR3_INT_DECL(void) NEMR3NotifyDebugEventChanged(PVM pVM); VMMR3_INT_DECL(void) NEMR3NotifyDebugEventChangedPerCpu(PVM pVM, PVMCPU pVCpu); /** @} */ /** @defgroup grp_nem_r0 The NEM ring-0 Context API * @{ */ VMMR0_INT_DECL(int) NEMR0Init(void); VMMR0_INT_DECL(void) NEMR0Term(void); VMMR0_INT_DECL(int) NEMR0InitVM(PGVM pGVM); VMMR0_INT_DECL(int) NEMR0InitVMPart2(PGVM pGVM); VMMR0_INT_DECL(void) NEMR0CleanupVM(PGVM pGVM); VMMR0_INT_DECL(int) NEMR0MapPages(PGVM pGVM, VMCPUID idCpu); VMMR0_INT_DECL(int) NEMR0UnmapPages(PGVM pGVM, VMCPUID idCpu); VMMR0_INT_DECL(int) NEMR0ExportState(PGVM pGVM, VMCPUID idCpu); VMMR0_INT_DECL(int) NEMR0ImportState(PGVM pGVM, VMCPUID idCpu, uint64_t fWhat); VMMR0_INT_DECL(int) NEMR0QueryCpuTick(PGVM pGVM, VMCPUID idCpu); VMMR0_INT_DECL(int) NEMR0ResumeCpuTickOnAll(PGVM pGVM, VMCPUID idCpu, uint64_t uPausedTscValue); VMMR0_INT_DECL(VBOXSTRICTRC) NEMR0RunGuestCode(PGVM pGVM, VMCPUID idCpu); VMMR0_INT_DECL(int) NEMR0UpdateStatistics(PGVM pGVM, VMCPUID idCpu); VMMR0_INT_DECL(int) NEMR0DoExperiment(PGVM pGVM, VMCPUID idCpu, uint64_t u64Arg); #ifdef RT_OS_WINDOWS VMMR0_INT_DECL(int) NEMR0WinGetPartitionId(PGVM pGVM, uintptr_t uHandle); #endif /** @} */ /** @defgroup grp_nem_hc The NEM Host Context API * @{ */ VMM_INT_DECL(bool) NEMHCIsLongModeAllowed(PVMCC pVM); VMM_INT_DECL(uint32_t) NEMHCGetFeatures(PVMCC pVM); VMM_INT_DECL(int) NEMImportStateOnDemand(PVMCPUCC pVCpu, uint64_t fWhat); /** @name NEM_FEAT_F_XXX - Features supported by the NEM backend * @{ */ /** NEM backend uses nested paging for the guest. */ #define NEM_FEAT_F_NESTED_PAGING RT_BIT(0) /** NEM backend uses full (unrestricted) guest execution. */ #define NEM_FEAT_F_FULL_GST_EXEC RT_BIT(1) /** NEM backend offers an xsave/xrstor interface. */ #define NEM_FEAT_F_XSAVE_XRSTOR RT_BIT(2) /** @} */ VMM_INT_DECL(void) NEMHCNotifyHandlerPhysicalRegister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb); VMM_INT_DECL(void) NEMHCNotifyHandlerPhysicalDeregister(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhys, RTGCPHYS cb, RTR3PTR pvMemR3, uint8_t *pu2State); VMM_INT_DECL(void) NEMHCNotifyHandlerPhysicalModify(PVMCC pVM, PGMPHYSHANDLERKIND enmKind, RTGCPHYS GCPhysOld, RTGCPHYS GCPhysNew, RTGCPHYS cb, bool fRestoreAsRAM); VMM_INT_DECL(int) NEMHCNotifyPhysPageAllocated(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, uint32_t fPageProt, PGMPAGETYPE enmType, uint8_t *pu2State); VMM_INT_DECL(void) NEMHCNotifyPhysPageProtChanged(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhys, RTR3PTR pvR3, uint32_t fPageProt, PGMPAGETYPE enmType, uint8_t *pu2State); VMM_INT_DECL(void) NEMHCNotifyPhysPageChanged(PVMCC pVM, RTGCPHYS GCPhys, RTHCPHYS HCPhysPrev, RTHCPHYS HCPhysNew, RTR3PTR pvNewR3, uint32_t fPageProt, PGMPAGETYPE enmType, uint8_t *pu2State); /** @name NEM_PAGE_PROT_XXX - Page protection * @{ */ #define NEM_PAGE_PROT_NONE UINT32_C(0) /**< All access causes VM exits. */ #define NEM_PAGE_PROT_READ RT_BIT(0) /**< Read access. */ #define NEM_PAGE_PROT_EXECUTE RT_BIT(1) /**< Execute access. */ #define NEM_PAGE_PROT_WRITE RT_BIT(2) /**< write access. */ /** @} */ VMM_INT_DECL(int) NEMHCQueryCpuTick(PVMCPUCC pVCpu, uint64_t *pcTicks, uint32_t *puAux); VMM_INT_DECL(int) NEMHCResumeCpuTickOnAll(PVMCC pVM, PVMCPUCC pVCpu, uint64_t uPausedTscValue); /** @} */ /** @} */ RT_C_DECLS_END #endif /* !VBOX_INCLUDED_vmm_nem_h */