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| -rw-r--r-- | include/VBox/vmm/nem.h | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/include/VBox/vmm/nem.h b/include/VBox/vmm/nem.h new file mode 100644 index 00000000..3004efa5 --- /dev/null +++ b/include/VBox/vmm/nem.h @@ -0,0 +1,256 @@ +/** @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 <https://www.gnu.org/licenses>. + * + * 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 <VBox/types.h> +#include <VBox/vmm/vmapi.h> +#include <VBox/vmm/pgm.h> + + +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 */ + |