path: root/include/VBox/pgm.h

/** @file
 * PGM - Page Monitor / Monitor. (VMM)
 */

/*
 * Copyright (C) 2006-2007 Oracle Corporation
 *
 * This file is part of VirtualBox Open Source Edition (OSE), as
 * available from http://www.virtualbox.org. This file is free software;
 * you can redistribute it and/or modify it under the terms of the GNU
 * General Public License (GPL) as published by the Free Software
 * Foundation, in version 2 as it comes in the "COPYING" file of the
 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
 *
 * The contents of this file may alternatively be used under the terms
 * of the Common Development and Distribution License Version 1.0
 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
 * VirtualBox OSE 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.
 */

#ifndef ___VBox_pgm_h
#define ___VBox_pgm_h

#include <VBox/cdefs.h>
#include <VBox/types.h>
#include <VBox/sup.h>
#include <VBox/vmapi.h>
#include <VBox/x86.h>
#include <VBox/hwacc_vmx.h>
#include <VBox/VMMDev.h> /* for VMMDEVSHAREDREGIONDESC */
#include <VBox/gmm.h> /* for PGMMREGISTERSHAREDMODULEREQ */

RT_C_DECLS_BEGIN

/** @defgroup grp_pgm   The Page Monitor / Manager API
 * @{
 */

/** Chunk size for dynamically allocated physical memory. */
#define PGM_DYNAMIC_CHUNK_SIZE          (1*1024*1024)
/** Shift GC physical address by 20 bits to get the offset into the pvHCChunkHC array. */
#define PGM_DYNAMIC_CHUNK_SHIFT         20
/** Dynamic chunk offset mask. */
#define PGM_DYNAMIC_CHUNK_OFFSET_MASK   0xfffff
/** Dynamic chunk base mask. */
#define PGM_DYNAMIC_CHUNK_BASE_MASK     (~(RTGCPHYS)PGM_DYNAMIC_CHUNK_OFFSET_MASK)


/**
 * FNPGMRELOCATE callback mode.
 */
typedef enum PGMRELOCATECALL
{
    /** The callback is for checking if the suggested address is suitable. */
    PGMRELOCATECALL_SUGGEST = 1,
    /** The callback is for executing the relocation. */
    PGMRELOCATECALL_RELOCATE
} PGMRELOCATECALL;


/**
 * Callback function which will be called when PGM is trying to find
 * a new location for the mapping.
 *
 * The callback is called in two modes, 1) the check mode and 2) the relocate mode.
 * In 1) the callback should say if it objects to a suggested new location. If it
 * accepts the new location, it is called again for doing it's relocation.
 *
 *
 * @returns true if the location is ok.
 * @returns false if another location should be found.
 * @param   GCPtrOld    The old virtual address.
 * @param   GCPtrNew    The new virtual address.
 * @param   enmMode     Used to indicate the callback mode.
 * @param   pvUser      User argument.
 * @remark  The return value is no a failure indicator, it's an acceptance
 *          indicator. Relocation can not fail!
 */
typedef DECLCALLBACK(bool) FNPGMRELOCATE(PVM pVM, RTGCPTR GCPtrOld, RTGCPTR GCPtrNew, PGMRELOCATECALL enmMode, void *pvUser);
/** Pointer to a relocation callback function. */
typedef FNPGMRELOCATE *PFNPGMRELOCATE;


/**
 * Physical page access handler type.
 */
typedef enum PGMPHYSHANDLERTYPE
{
    /** MMIO range. Pages are not present, all access is done in interpreter or recompiler. */
    PGMPHYSHANDLERTYPE_MMIO = 1,
    /** Handler all write access to a physical page range. */
    PGMPHYSHANDLERTYPE_PHYSICAL_WRITE,
    /** Handler all access to a physical page range. */
    PGMPHYSHANDLERTYPE_PHYSICAL_ALL

} PGMPHYSHANDLERTYPE;

/**
 * \#PF Handler callback for physical access handler ranges in RC.
 *
 * @returns VBox status code (appropriate for RC return).
 * @param   pVM         VM Handle.
 * @param   uErrorCode  CPU Error code.
 * @param   pRegFrame   Trap register frame.
 *                      NULL on DMA and other non CPU access.
 * @param   pvFault     The fault address (cr2).
 * @param   GCPhysFault The GC physical address corresponding to pvFault.
 * @param   pvUser      User argument.
 */
typedef DECLCALLBACK(int) FNPGMRCPHYSHANDLER(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
/** Pointer to PGM access callback. */
typedef FNPGMRCPHYSHANDLER *PFNPGMRCPHYSHANDLER;

/**
 * \#PF Handler callback for physical access handler ranges in R0.
 *
 * @returns VBox status code (appropriate for R0 return).
 * @param   pVM         VM Handle.
 * @param   uErrorCode  CPU Error code.
 * @param   pRegFrame   Trap register frame.
 *                      NULL on DMA and other non CPU access.
 * @param   pvFault     The fault address (cr2).
 * @param   GCPhysFault The GC physical address corresponding to pvFault.
 * @param   pvUser      User argument.
 */
typedef DECLCALLBACK(int) FNPGMR0PHYSHANDLER(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
/** Pointer to PGM access callback. */
typedef FNPGMR0PHYSHANDLER *PFNPGMR0PHYSHANDLER;

/**
 * Guest Access type
 */
typedef enum PGMACCESSTYPE
{
    /** Read access. */
    PGMACCESSTYPE_READ = 1,
    /** Write access. */
    PGMACCESSTYPE_WRITE
} PGMACCESSTYPE;

/**
 * \#PF Handler callback for physical access handler ranges (MMIO among others) in HC.
 *
 * The handler can not raise any faults, it's mainly for monitoring write access
 * to certain pages.
 *
 * @returns VINF_SUCCESS if the handler have carried out the operation.
 * @returns VINF_PGM_HANDLER_DO_DEFAULT if the caller should carry out the access operation.
 * @param   pVM             VM Handle.
 * @param   GCPhys          The physical address the guest is writing to.
 * @param   pvPhys          The HC mapping of that address.
 * @param   pvBuf           What the guest is reading/writing.
 * @param   cbBuf           How much it's reading/writing.
 * @param   enmAccessType   The access type.
 * @param   pvUser          User argument.
 */
typedef DECLCALLBACK(int) FNPGMR3PHYSHANDLER(PVM pVM, RTGCPHYS GCPhys, void *pvPhys, void *pvBuf, size_t cbBuf, PGMACCESSTYPE enmAccessType, void *pvUser);
/** Pointer to PGM access callback. */
typedef FNPGMR3PHYSHANDLER *PFNPGMR3PHYSHANDLER;


/**
 * Virtual access handler type.
 */
typedef enum PGMVIRTHANDLERTYPE
{
    /** Write access handled. */
    PGMVIRTHANDLERTYPE_WRITE = 1,
    /** All access handled. */
    PGMVIRTHANDLERTYPE_ALL,
    /** Hypervisor write access handled.
     * This is used to catch the guest trying to write to LDT, TSS and any other
     * system structure which the brain dead intel guys let unprivilegde code find. */
    PGMVIRTHANDLERTYPE_HYPERVISOR
} PGMVIRTHANDLERTYPE;

/**
 * \#PF Handler callback for virtual access handler ranges, RC.
 *
 * Important to realize that a physical page in a range can have aliases, and
 * for ALL and WRITE handlers these will also trigger.
 *
 * @returns VBox status code (appropriate for GC return).
 * @param   pVM         VM Handle.
 * @param   uErrorCode   CPU Error code.
 * @param   pRegFrame   Trap register frame.
 * @param   pvFault     The fault address (cr2).
 * @param   pvRange     The base address of the handled virtual range.
 * @param   offRange    The offset of the access into this range.
 *                      (If it's a EIP range this's the EIP, if not it's pvFault.)
 */
typedef DECLCALLBACK(int) FNPGMRCVIRTHANDLER(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPTR pvRange, uintptr_t offRange);
/** Pointer to PGM access callback. */
typedef FNPGMRCVIRTHANDLER *PFNPGMRCVIRTHANDLER;

/**
 * \#PF Handler callback for virtual access handler ranges, R3.
 *
 * Important to realize that a physical page in a range can have aliases, and
 * for ALL and WRITE handlers these will also trigger.
 *
 * @returns VINF_SUCCESS if the handler have carried out the operation.
 * @returns VINF_PGM_HANDLER_DO_DEFAULT if the caller should carry out the access operation.
 * @param   pVM             VM Handle.
 * @param   GCPtr           The virtual address the guest is writing to. (not correct if it's an alias!)
 * @param   pvPtr           The HC mapping of that address.
 * @param   pvBuf           What the guest is reading/writing.
 * @param   cbBuf           How much it's reading/writing.
 * @param   enmAccessType   The access type.
 * @param   pvUser          User argument.
 */
typedef DECLCALLBACK(int) FNPGMR3VIRTHANDLER(PVM pVM, RTGCPTR GCPtr, void *pvPtr, void *pvBuf, size_t cbBuf, PGMACCESSTYPE enmAccessType, void *pvUser);
/** Pointer to PGM access callback. */
typedef FNPGMR3VIRTHANDLER *PFNPGMR3VIRTHANDLER;


/**
 * \#PF Handler callback for invalidation of virtual access handler ranges.
 *
 * @param   pVM             VM Handle.
 * @param   GCPtr           The virtual address the guest has changed.
 */
typedef DECLCALLBACK(int) FNPGMR3VIRTINVALIDATE(PVM pVM, RTGCPTR GCPtr);
/** Pointer to PGM invalidation callback. */
typedef FNPGMR3VIRTINVALIDATE *PFNPGMR3VIRTINVALIDATE;

/**
 * Paging mode.
 */
typedef enum PGMMODE
{
    /** The usual invalid value. */
    PGMMODE_INVALID = 0,
    /** Real mode. */
    PGMMODE_REAL,
    /** Protected mode, no paging. */
    PGMMODE_PROTECTED,
    /** 32-bit paging. */
    PGMMODE_32_BIT,
    /** PAE paging. */
    PGMMODE_PAE,
    /** PAE paging with NX enabled. */
    PGMMODE_PAE_NX,
    /** 64-bit AMD paging (long mode). */
    PGMMODE_AMD64,
    /** 64-bit AMD paging (long mode) with NX enabled. */
    PGMMODE_AMD64_NX,
    /** Nested paging mode (shadow only; guest physical to host physical). */
    PGMMODE_NESTED,
    /** Extended paging (Intel) mode. */
    PGMMODE_EPT,
    /** The max number of modes */
    PGMMODE_MAX,
    /** 32bit hackishness. */
    PGMMODE_32BIT_HACK = 0x7fffffff
} PGMMODE;

/** Macro for checking if the guest is using paging.
 * @param enmMode   PGMMODE_*.
 * @remark  ASSUMES certain order of the PGMMODE_* values.
 */
#define PGMMODE_WITH_PAGING(enmMode) ((enmMode) >= PGMMODE_32_BIT)

/** Macro for checking if it's one of the long mode modes.
 * @param enmMode   PGMMODE_*.
 */
#define PGMMODE_IS_LONG_MODE(enmMode) ((enmMode) == PGMMODE_AMD64_NX || (enmMode) == PGMMODE_AMD64)

/**
 * Is the ROM mapped (true) or is the shadow RAM mapped (false).
 *
 * @returns boolean.
 * @param   enmProt     The PGMROMPROT value, must be valid.
 */
#define PGMROMPROT_IS_ROM(enmProt) \
    (    (enmProt) == PGMROMPROT_READ_ROM_WRITE_IGNORE \
      || (enmProt) == PGMROMPROT_READ_ROM_WRITE_RAM )



VMMDECL(bool)       PGMIsLocked(PVM pVM);
VMMDECL(bool)       PGMIsLockOwner(PVM pVM);

VMMDECL(int)        PGMRegisterStringFormatTypes(void);
VMMDECL(void)       PGMDeregisterStringFormatTypes(void);
VMMDECL(RTHCPHYS)   PGMGetHyperCR3(PVMCPU pVCpu);
VMMDECL(RTHCPHYS)   PGMGetNestedCR3(PVMCPU pVCpu, PGMMODE enmShadowMode);
VMMDECL(RTHCPHYS)   PGMGetInterHCCR3(PVM pVM);
VMMDECL(RTHCPHYS)   PGMGetInterRCCR3(PVM pVM, PVMCPU pVCpu);
VMMDECL(RTHCPHYS)   PGMGetInter32BitCR3(PVM pVM);
VMMDECL(RTHCPHYS)   PGMGetInterPaeCR3(PVM pVM);
VMMDECL(RTHCPHYS)   PGMGetInterAmd64CR3(PVM pVM);
VMMDECL(int)        PGMTrap0eHandler(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault);
VMMDECL(int)        PGMPrefetchPage(PVMCPU pVCpu, RTGCPTR GCPtrPage);
VMMDECL(int)        PGMVerifyAccess(PVMCPU pVCpu, RTGCPTR Addr, uint32_t cbSize, uint32_t fAccess);
VMMDECL(int)        PGMIsValidAccess(PVMCPU pVCpu, RTGCPTR Addr, uint32_t cbSize, uint32_t fAccess);
VMMDECL(int)        PGMInterpretInstruction(PVM pVM, PVMCPU pVCpu, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault);
VMMDECL(int)        PGMMap(PVM pVM, RTGCPTR GCPtr, RTHCPHYS HCPhys, uint32_t cbPages, unsigned fFlags);
VMMDECL(int)        PGMMapSetPage(PVM pVM, RTGCPTR GCPtr, uint64_t cb, uint64_t fFlags);
VMMDECL(int)        PGMMapModifyPage(PVM pVM, RTGCPTR GCPtr, size_t cb, uint64_t fFlags, uint64_t fMask);
#ifndef IN_RING0
VMMDECL(bool)       PGMMapHasConflicts(PVM pVM);
#endif
#ifdef VBOX_STRICT
VMMDECL(void)       PGMMapCheck(PVM pVM);
#endif
VMMDECL(int)        PGMShwGetPage(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys);
VMMDECL(int)        PGMShwSetPage(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cb, uint64_t fFlags);
VMMDECL(int)        PGMShwModifyPage(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cb, uint64_t fFlags, uint64_t fMask);
VMMDECL(int)        PGMGstGetPage(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys);
VMMDECL(bool)       PGMGstIsPagePresent(PVMCPU pVCpu, RTGCPTR GCPtr);
VMMDECL(int)        PGMGstSetPage(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cb, uint64_t fFlags);
VMMDECL(int)        PGMGstModifyPage(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cb, uint64_t fFlags, uint64_t fMask);
VMMDECL(X86PDPE)    PGMGstGetPaePDPtr(PVMCPU pVCpu, unsigned iPdPt);

VMMDECL(int)        PGMInvalidatePage(PVMCPU pVCpu, RTGCPTR GCPtrPage);
VMMDECL(int)        PGMFlushTLB(PVMCPU pVCpu, uint64_t cr3, bool fGlobal);
VMMDECL(int)        PGMSyncCR3(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal);
VMMDECL(int)        PGMUpdateCR3(PVMCPU pVCpu, uint64_t cr3);
VMMDECL(int)        PGMChangeMode(PVMCPU pVCpu, uint64_t cr0, uint64_t cr4, uint64_t efer);
VMMDECL(PGMMODE)    PGMGetGuestMode(PVMCPU pVCpu);
VMMDECL(PGMMODE)    PGMGetShadowMode(PVMCPU pVCpu);
VMMDECL(PGMMODE)    PGMGetHostMode(PVM pVM);
VMMDECL(const char *) PGMGetModeName(PGMMODE enmMode);
VMMDECL(bool)       PGMHasDirtyPages(PVM pVM);
VMMDECL(int)        PGMHandlerPhysicalRegisterEx(PVM pVM, PGMPHYSHANDLERTYPE enmType, RTGCPHYS GCPhys, RTGCPHYS GCPhysLast,
                                                 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnHandlerR3, RTR3PTR pvUserR3,
                                                 R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnHandlerR0, RTR0PTR pvUserR0,
                                                 RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnHandlerRC, RTRCPTR pvUserRC,
                                                 R3PTRTYPE(const char *) pszDesc);
VMMDECL(int)        PGMHandlerPhysicalModify(PVM pVM, RTGCPHYS GCPhysCurrent, RTGCPHYS GCPhys, RTGCPHYS GCPhysLast);
VMMDECL(int)        PGMHandlerPhysicalDeregister(PVM pVM, RTGCPHYS GCPhys);
VMMDECL(int)        PGMHandlerPhysicalChangeCallbacks(PVM pVM, RTGCPHYS GCPhys,
                                                      R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnHandlerR3, RTR3PTR pvUserR3,
                                                      R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnHandlerR0, RTR0PTR pvUserR0,
                                                      RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnHandlerRC, RTRCPTR pvUserRC,
                                                      R3PTRTYPE(const char *) pszDesc);
VMMDECL(int)        PGMHandlerPhysicalSplit(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS GCPhysSplit);
VMMDECL(int)        PGMHandlerPhysicalJoin(PVM pVM, RTGCPHYS GCPhys1, RTGCPHYS GCPhys2);
VMMDECL(int)        PGMHandlerPhysicalPageTempOff(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS GCPhysPage);
VMMDECL(int)        PGMHandlerPhysicalPageAlias(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS GCPhysPage, RTGCPHYS GCPhysPageRemap);
VMMDECL(int)        PGMHandlerPhysicalPageAliasHC(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS GCPhysPage, RTHCPHYS HCPhysPageRemap);
VMMDECL(int)        PGMHandlerPhysicalReset(PVM pVM, RTGCPHYS GCPhys);
VMMDECL(bool)       PGMHandlerPhysicalIsRegistered(PVM pVM, RTGCPHYS GCPhys);
VMMDECL(bool)       PGMHandlerVirtualIsRegistered(PVM pVM, RTGCPTR GCPtr);
VMMDECL(bool)       PGMPhysIsA20Enabled(PVMCPU pVCpu);
VMMDECL(bool)       PGMPhysIsGCPhysValid(PVM pVM, RTGCPHYS GCPhys);
VMMDECL(bool)       PGMPhysIsGCPhysNormal(PVM pVM, RTGCPHYS GCPhys);
VMMDECL(int)        PGMPhysGCPhys2HCPhys(PVM pVM, RTGCPHYS GCPhys, PRTHCPHYS pHCPhys);
VMMDECL(int)        PGMPhysGCPtr2GCPhys(PVMCPU pVCpu, RTGCPTR GCPtr, PRTGCPHYS pGCPhys);
VMMDECL(int)        PGMPhysGCPtr2HCPhys(PVMCPU pVCpu, RTGCPTR GCPtr, PRTHCPHYS pHCPhys);
VMMDECL(void)       PGMPhysInvalidatePageMapTLB(PVM pVM);
VMMDECL(void)       PGMPhysInvalidatePageMapTLBEntry(PVM pVM, RTGCPHYS GCPhys);
VMMDECL(int)        PGMPhysGCPhys2CCPtr(PVM pVM, RTGCPHYS GCPhys, void **ppv, PPGMPAGEMAPLOCK pLock);
VMMDECL(int)        PGMPhysGCPhys2CCPtrReadOnly(PVM pVM, RTGCPHYS GCPhys, void const **ppv, PPGMPAGEMAPLOCK pLock);
VMMDECL(int)        PGMPhysGCPtr2CCPtr(PVMCPU pVCpu, RTGCPTR GCPtr, void **ppv, PPGMPAGEMAPLOCK pLock);
VMMDECL(int)        PGMPhysGCPtr2CCPtrReadOnly(PVMCPU pVCpu, RTGCPTR GCPtr, void const **ppv, PPGMPAGEMAPLOCK pLock);
VMMDECL(void)       PGMPhysReleasePageMappingLock(PVM pVM, PPGMPAGEMAPLOCK pLock);
VMMDECL(int)        PGMPhysGCPhys2R3Ptr(PVM pVM, RTGCPHYS GCPhys, RTUINT cbRange, PRTR3PTR pR3Ptr);
#ifdef VBOX_STRICT
VMMDECL(RTR3PTR)    PGMPhysGCPhys2R3PtrAssert(PVM pVM, RTGCPHYS GCPhys, RTUINT cbRange);
#endif
VMMDECL(int)        PGMPhysGCPtr2R3Ptr(PVMCPU pVCpu, RTGCPTR GCPtr, PRTR3PTR pR3Ptr);
VMMDECL(int)        PGMPhysRead(PVM pVM, RTGCPHYS GCPhys, void *pvBuf, size_t cbRead);
VMMDECL(int)        PGMPhysWrite(PVM pVM, RTGCPHYS GCPhys, const void *pvBuf, size_t cbWrite);
VMMDECL(int)        PGMPhysSimpleReadGCPhys(PVM pVM, void *pvDst, RTGCPHYS GCPhysSrc, size_t cb);
VMMDECL(int)        PGMPhysSimpleWriteGCPhys(PVM pVM, RTGCPHYS GCPhysDst, const void *pvSrc, size_t cb);
VMMDECL(int)        PGMPhysSimpleReadGCPtr(PVMCPU pVCpu, void *pvDst, RTGCPTR GCPtrSrc, size_t cb);
VMMDECL(int)        PGMPhysSimpleWriteGCPtr(PVMCPU pVCpu, RTGCPTR GCPtrDst, const void *pvSrc, size_t cb);
VMMDECL(int)        PGMPhysReadGCPtr(PVMCPU pVCpu, void *pvDst, RTGCPTR GCPtrSrc, size_t cb);
VMMDECL(int)        PGMPhysWriteGCPtr(PVMCPU pVCpu, RTGCPTR GCPtrDst, const void *pvSrc, size_t cb);
VMMDECL(int)        PGMPhysSimpleDirtyWriteGCPtr(PVMCPU pVCpu, RTGCPTR GCPtrDst, const void *pvSrc, size_t cb);
VMMDECL(int)        PGMPhysInterpretedRead(PVMCPU pVCpu, PCPUMCTXCORE pCtxCore, void *pvDst, RTGCPTR GCPtrSrc, size_t cb);
VMMDECL(int)        PGMPhysInterpretedReadNoHandlers(PVMCPU pVCpu, PCPUMCTXCORE pCtxCore, void *pvDst, RTGCUINTPTR GCPtrSrc, size_t cb, bool fRaiseTrap);
VMMDECL(int)        PGMPhysInterpretedWriteNoHandlers(PVMCPU pVCpu, PCPUMCTXCORE pCtxCore, RTGCPTR GCPtrDst, void const *pvSrc, size_t cb, bool fRaiseTrap);
#ifdef VBOX_STRICT
VMMDECL(unsigned)   PGMAssertHandlerAndFlagsInSync(PVM pVM);
VMMDECL(unsigned)   PGMAssertNoMappingConflicts(PVM pVM);
VMMDECL(unsigned)   PGMAssertCR3(PVM pVM, PVMCPU pVCpu, uint64_t cr3, uint64_t cr4);
#endif /* VBOX_STRICT */

#if defined(IN_RC) || defined(VBOX_WITH_2X_4GB_ADDR_SPACE)
VMMDECL(int)        PGMDynMapGCPage(PVM pVM, RTGCPHYS GCPhys, void **ppv);
VMMDECL(int)        PGMDynMapGCPageOff(PVM pVM, RTGCPHYS GCPhys, void **ppv);
# ifdef IN_RC
VMMDECL(int)        PGMDynMapHCPage(PVM pVM, RTHCPHYS HCPhys, void **ppv);
VMMDECL(void)       PGMDynLockHCPage(PVM pVM, RCPTRTYPE(uint8_t *) GCPage);
VMMDECL(void)       PGMDynUnlockHCPage(PVM pVM, RCPTRTYPE(uint8_t *) GCPage);
#  ifdef VBOX_STRICT
VMMDECL(void)       PGMDynCheckLocks(PVM pVM);
#  endif
# endif
VMMDECL(void)       PGMDynMapStartAutoSet(PVMCPU pVCpu);
VMMDECL(bool)       PGMDynMapStartOrMigrateAutoSet(PVMCPU pVCpu);
VMMDECL(void)       PGMDynMapReleaseAutoSet(PVMCPU pVCpu);
VMMDECL(void)       PGMDynMapFlushAutoSet(PVMCPU pVCpu);
VMMDECL(void)       PGMDynMapMigrateAutoSet(PVMCPU pVCpu);
VMMDECL(uint32_t)   PGMDynMapPushAutoSubset(PVMCPU pVCpu);
VMMDECL(void)       PGMDynMapPopAutoSubset(PVMCPU pVCpu, uint32_t iPrevSubset);
#endif


VMMDECL(void) PGMSetLargePageUsage(PVM pVM, bool fUseLargePages);

/**
 * Query large page usage state
 *
 * @returns 0 - disabled, 1 - enabled
 * @param   pVM         The VM to operate on.
 */
#define PGMIsUsingLargePages(pVM) (pVM->fUseLargePages)


#ifdef IN_RC
/** @defgroup grp_pgm_gc  The PGM Guest Context API
 * @ingroup grp_pgm
 * @{
 */
/** @} */
#endif /* IN_RC */


#ifdef IN_RING0
/** @defgroup grp_pgm_r0  The PGM Host Context Ring-0 API
 * @ingroup grp_pgm
 * @{
 */
VMMR0DECL(int)      PGMR0PhysAllocateHandyPages(PVM pVM, PVMCPU pVCpu);
VMMR0DECL(int)      PGMR0PhysAllocateLargeHandyPage(PVM pVM, PVMCPU pVCpu);
VMMR0DECL(int)      PGMR0SharedModuleCheckRegion(PVM pVM, VMCPUID idCpu, PGMMSHAREDMODULE pModule, PGVM pGVM);
VMMR0DECL(int)      PGMR0Trap0eHandlerNestedPaging(PVM pVM, PVMCPU pVCpu, PGMMODE enmShwPagingMode, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPHYS pvFault);
# ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
VMMR0DECL(int)      PGMR0DynMapInit(void);
VMMR0DECL(void)     PGMR0DynMapTerm(void);
VMMR0DECL(int)      PGMR0DynMapInitVM(PVM pVM);
VMMR0DECL(void)     PGMR0DynMapTermVM(PVM pVM);
VMMR0DECL(int)      PGMR0DynMapAssertIntegrity(void);
# endif
/** @} */
#endif /* IN_RING0 */



#ifdef IN_RING3
/** @defgroup grp_pgm_r3  The PGM Host Context Ring-3 API
 * @ingroup grp_pgm
 * @{
 */
VMMR3DECL(int)      PGMR3Init(PVM pVM);
VMMR3DECL(int)      PGMR3InitCPU(PVM pVM);
VMMR3DECL(int)      PGMR3InitDynMap(PVM pVM);
VMMR3DECL(int)      PGMR3InitFinalize(PVM pVM);
VMMR3DECL(void)     PGMR3Relocate(PVM pVM, RTGCINTPTR offDelta);
VMMR3DECL(void)     PGMR3ResetUnpluggedCpu(PVM pVM, PVMCPU pVCpu);
VMMR3DECL(void)     PGMR3Reset(PVM pVM);
VMMR3DECL(int)      PGMR3Term(PVM pVM);
VMMR3DECL(int)      PGMR3TermCPU(PVM pVM);
VMMR3DECL(int)      PGMR3LockCall(PVM pVM);
VMMR3DECL(int)      PGMR3ChangeMode(PVM pVM, PVMCPU pVCpu, PGMMODE enmGuestMode);

VMMR3DECL(int)      PGMR3PhysRegisterRam(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, const char *pszDesc);
VMMR3DECL(int)      PGMR3PhysChangeMemBalloon(PVM pVM, bool fInflate, unsigned cPages, RTGCPHYS *paPhysPage);
VMMR3DECL(int)      PGMR3QueryVMMMemoryStats(PVM pVM, uint64_t *puTotalAllocSize, uint64_t *puTotalFreeSize, uint64_t *puTotalBalloonSize);
VMMR3DECL(int)      PGMR3PhysMMIORegister(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb,
                                          R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnHandlerR3, RTR3PTR pvUserR3,
                                          R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnHandlerR0, RTR0PTR pvUserR0,
                                          RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnHandlerRC, RTRCPTR pvUserRC,
                                          R3PTRTYPE(const char *) pszDesc);
VMMR3DECL(int)      PGMR3PhysMMIODeregister(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb);
VMMR3DECL(int)      PGMR3PhysMMIO2Register(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion, RTGCPHYS cb, uint32_t fFlags, void **ppv, const char *pszDesc);
VMMR3DECL(int)      PGMR3PhysMMIO2Deregister(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion);
VMMR3DECL(int)      PGMR3PhysMMIO2Map(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion, RTGCPHYS GCPhys);
VMMR3DECL(int)      PGMR3PhysMMIO2Unmap(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion, RTGCPHYS GCPhys);
VMMR3DECL(bool)     PGMR3PhysMMIO2IsBase(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhys);
VMMR3DECL(int)      PGMR3PhysMMIO2GetHCPhys(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion, RTGCPHYS off, PRTHCPHYS pHCPhys);
VMMR3DECL(int)      PGMR3PhysMMIO2MapKernel(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion, RTGCPHYS off, RTGCPHYS cb, const char *pszDesc, PRTR0PTR pR0Ptr);

/** @name PGMR3PhysRegisterRom flags.
 * @{ */
/** Inidicates that ROM shadowing should be enabled. */
#define PGMPHYS_ROM_FLAGS_SHADOWED          RT_BIT_32(0)
/** Indicates that what pvBinary points to won't go away
 * and can be used for strictness checks. */
#define PGMPHYS_ROM_FLAGS_PERMANENT_BINARY  RT_BIT_32(1)
/** @} */

VMMR3DECL(int)      PGMR3PhysRomRegister(PVM pVM, PPDMDEVINS pDevIns, RTGCPHYS GCPhys, RTGCPHYS cb,
                                         const void *pvBinary, uint32_t fFlags, const char *pszDesc);
VMMR3DECL(int)      PGMR3PhysRomProtect(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cb, PGMROMPROT enmProt);
VMMR3DECL(int)      PGMR3PhysRegister(PVM pVM, void *pvRam, RTGCPHYS GCPhys, size_t cb, unsigned fFlags, const SUPPAGE *paPages, const char *pszDesc);
VMMDECL(void)       PGMR3PhysSetA20(PVMCPU pVCpu, bool fEnable);
/** @name PGMR3MapPT flags.
 * @{ */
/** The mapping may be unmapped later. The default is permanent mappings. */
#define PGMR3MAPPT_FLAGS_UNMAPPABLE     RT_BIT(0)
/** @} */
VMMR3DECL(int)      PGMR3MapPT(PVM pVM, RTGCPTR GCPtr, uint32_t cb, uint32_t fFlags, PFNPGMRELOCATE pfnRelocate, void *pvUser, const char *pszDesc);
VMMR3DECL(int)      PGMR3UnmapPT(PVM pVM, RTGCPTR GCPtr);
VMMR3DECL(int)      PGMR3FinalizeMappings(PVM pVM);
VMMR3DECL(int)      PGMR3MappingsDisable(PVM pVM);
VMMR3DECL(int)      PGMR3MappingsSize(PVM pVM, uint32_t *pcb);
VMMR3DECL(int)      PGMR3MappingsFix(PVM pVM, RTGCPTR GCPtrBase, uint32_t cb);
VMMR3DECL(int)      PGMR3MappingsUnfix(PVM pVM);
VMMR3DECL(bool)     PGMR3MappingsNeedReFixing(PVM pVM);
VMMR3DECL(int)      PGMR3MapIntermediate(PVM pVM, RTUINTPTR Addr, RTHCPHYS HCPhys, unsigned cbPages);
VMMR3DECL(int)      PGMR3MapRead(PVM pVM, void *pvDst, RTGCPTR GCPtrSrc, size_t cb);

VMMR3DECL(int)      PGMR3HandlerPhysicalRegister(PVM pVM, PGMPHYSHANDLERTYPE enmType, RTGCPHYS GCPhys, RTGCPHYS GCPhysLast,
                                                 PFNPGMR3PHYSHANDLER pfnHandlerR3, void *pvUserR3,
                                                 const char *pszModR0, const char *pszHandlerR0, RTR0PTR pvUserR0,
                                                 const char *pszModRC, const char *pszHandlerRC, RTRCPTR pvUserRC, const char *pszDesc);
VMMDECL(int)        PGMR3HandlerVirtualRegisterEx(PVM pVM, PGMVIRTHANDLERTYPE enmType, RTGCPTR GCPtr, RTGCPTR GCPtrLast,
                                                  R3PTRTYPE(PFNPGMR3VIRTINVALIDATE) pfnInvalidateR3,
                                                  R3PTRTYPE(PFNPGMR3VIRTHANDLER) pfnHandlerR3,
                                                  RCPTRTYPE(PFNPGMRCVIRTHANDLER) pfnHandlerRC,
                                                  R3PTRTYPE(const char *) pszDesc);
VMMR3DECL(int)      PGMR3HandlerVirtualRegister(PVM pVM, PGMVIRTHANDLERTYPE enmType, RTGCPTR GCPtr, RTGCPTR GCPtrLast,
                                                PFNPGMR3VIRTINVALIDATE pfnInvalidateR3,
                                                PFNPGMR3VIRTHANDLER pfnHandlerR3,
                                                const char *pszHandlerRC, const char *pszModRC, const char *pszDesc);
VMMDECL(int)        PGMHandlerVirtualChangeInvalidateCallback(PVM pVM, RTGCPTR GCPtr, R3PTRTYPE(PFNPGMR3VIRTINVALIDATE) pfnInvalidateR3);
VMMDECL(int)        PGMHandlerVirtualDeregister(PVM pVM, RTGCPTR GCPtr);
VMMR3DECL(int)      PGMR3PoolGrow(PVM pVM);
#ifdef ___VBox_dbgf_h /** @todo fix this! */
VMMR3DECL(int)      PGMR3DumpHierarchyHC(PVM pVM, uint64_t cr3, uint64_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp);
#endif
VMMR3DECL(int)      PGMR3DumpHierarchyGC(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCPHYS PhysSearch);

VMMR3DECL(int)      PGMR3PhysTlbGCPhys2Ptr(PVM pVM, RTGCPHYS GCPhys, bool fWritable, void **ppv);
VMMR3DECL(uint8_t)  PGMR3PhysReadU8(PVM pVM, RTGCPHYS GCPhys);
VMMR3DECL(uint16_t) PGMR3PhysReadU16(PVM pVM, RTGCPHYS GCPhys);
VMMR3DECL(uint32_t) PGMR3PhysReadU32(PVM pVM, RTGCPHYS GCPhys);
VMMR3DECL(uint64_t) PGMR3PhysReadU64(PVM pVM, RTGCPHYS GCPhys);
VMMR3DECL(void)     PGMR3PhysWriteU8(PVM pVM, RTGCPHYS GCPhys, uint8_t Value);
VMMR3DECL(void)     PGMR3PhysWriteU16(PVM pVM, RTGCPHYS GCPhys, uint16_t Value);
VMMR3DECL(void)     PGMR3PhysWriteU32(PVM pVM, RTGCPHYS GCPhys, uint32_t Value);
VMMR3DECL(void)     PGMR3PhysWriteU64(PVM pVM, RTGCPHYS GCPhys, uint64_t Value);
VMMR3DECL(int)      PGMR3PhysReadExternal(PVM pVM, RTGCPHYS GCPhys, void *pvBuf, size_t cbRead);
VMMR3DECL(int)      PGMR3PhysWriteExternal(PVM pVM, RTGCPHYS GCPhys, const void *pvBuf, size_t cbWrite, const char *pszWho);
VMMR3DECL(int)      PGMR3PhysGCPhys2CCPtrExternal(PVM pVM, RTGCPHYS GCPhys, void **ppv, PPGMPAGEMAPLOCK pLock);
VMMR3DECL(int)      PGMR3PhysGCPhys2CCPtrReadOnlyExternal(PVM pVM, RTGCPHYS GCPhys, void const **ppv, PPGMPAGEMAPLOCK pLock);
VMMR3DECL(int)      PGMR3PhysChunkMap(PVM pVM, uint32_t idChunk);
VMMR3DECL(void)     PGMR3PhysChunkInvalidateTLB(PVM pVM);
VMMR3DECL(int)      PGMR3PhysAllocateHandyPages(PVM pVM);
VMMR3DECL(int)      PGMR3PhysAllocateLargeHandyPage(PVM pVM, RTGCPHYS GCPhys);

VMMR3DECL(void)     PGMR3ReleaseOwnedLocks(PVM pVM);

VMMR3DECL(int)      PGMR3CheckIntegrity(PVM pVM);

VMMR3DECL(int)      PGMR3DbgR3Ptr2GCPhys(PVM pVM, RTR3PTR R3Ptr, PRTGCPHYS pGCPhys);
VMMR3DECL(int)      PGMR3DbgR3Ptr2HCPhys(PVM pVM, RTR3PTR R3Ptr, PRTHCPHYS pHCPhys);
VMMR3DECL(int)      PGMR3DbgHCPhys2GCPhys(PVM pVM, RTHCPHYS HCPhys, PRTGCPHYS pGCPhys);
VMMR3DECL(int)      PGMR3DbgReadGCPhys(PVM pVM, void *pvDst, RTGCPHYS GCPhysSrc, size_t cb, uint32_t fFlags, size_t *pcbRead);
VMMR3DECL(int)      PGMR3DbgWriteGCPhys(PVM pVM, RTGCPHYS GCPhysDst, const void *pvSrc, size_t cb, uint32_t fFlags, size_t *pcbWritten);
VMMR3DECL(int)      PGMR3DbgReadGCPtr(PVM pVM, void *pvDst, RTGCPTR GCPtrSrc, size_t cb, uint32_t fFlags, size_t *pcbRead);
VMMR3DECL(int)      PGMR3DbgWriteGCPtr(PVM pVM, RTGCPTR GCPtrDst, void const *pvSrc, size_t cb, uint32_t fFlags, size_t *pcbWritten);
VMMR3DECL(int)      PGMR3DbgScanPhysical(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cbRange, RTGCPHYS GCPhysAlign, const uint8_t *pabNeedle, size_t cbNeedle, PRTGCPHYS pGCPhysHit);
VMMR3DECL(int)      PGMR3DbgScanVirtual(PVM pVM, PVMCPU pVCpu, RTGCPTR GCPtr, RTGCPTR cbRange, RTGCPTR GCPtrAlign, const uint8_t *pabNeedle, size_t cbNeedle, PRTGCUINTPTR pGCPhysHit);


/** @name Page sharing
 * @{ */
VMMR3DECL(int)     PGMR3SharedModuleRegister(PVM pVM, VBOXOSFAMILY enmGuestOS, char *pszModuleName, char *pszVersion, RTGCPTR GCBaseAddr, uint32_t cbModule, unsigned cRegions, VMMDEVSHAREDREGIONDESC *pRegions);
VMMR3DECL(int)     PGMR3SharedModuleUnregister(PVM pVM, char *pszModuleName, char *pszVersion, RTGCPTR GCBaseAddr, uint32_t cbModule);
VMMR3DECL(int)     PGMR3SharedModuleCheckAll(PVM pVM);
/** @} */

/** @} */
#endif /* IN_RING3 */

RT_C_DECLS_END

/** @} */
#endif