PGMInternal.h revision cb70d239cc25c714044be945b6f7ff4f3a8b7cdf
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync/* $Id$ */
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync/** @file
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync * PGM - Internal header file.
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync */
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync/*
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Copyright (C) 2006-2007 Sun Microsystems, Inc.
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync *
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync * available from http://www.virtualbox.org. This file is free software;
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync * you can redistribute it and/or modify it under the terms of the GNU
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * General Public License (GPL) as published by the Free Software
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync *
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
1c94c0a63ba68be1a7b2c640e70d7a06464e4fcavboxsync * additional information or have any questions.
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync */
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#ifndef ___PGMInternal_h
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#define ___PGMInternal_h
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync
f84cd77241a1c4b9106a92280611c659243e10d1vboxsync#include <VBox/cdefs.h>
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#include <VBox/types.h>
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#include <VBox/err.h>
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#include <VBox/stam.h>
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#include <VBox/param.h>
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#include <VBox/vmm.h>
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#include <VBox/mm.h>
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#include <VBox/pdmcritsect.h>
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#include <VBox/pdmapi.h>
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#include <VBox/dis.h>
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#include <VBox/dbgf.h>
134a71c1528b56afe4db843ab63ec5a5b849535bvboxsync#include <VBox/log.h>
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#include <VBox/gmm.h>
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#include <VBox/hwaccm.h>
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#include <iprt/avl.h>
134a71c1528b56afe4db843ab63ec5a5b849535bvboxsync#include <iprt/asm.h>
134a71c1528b56afe4db843ab63ec5a5b849535bvboxsync#include <iprt/assert.h>
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#include <iprt/critsect.h>
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
134a71c1528b56afe4db843ab63ec5a5b849535bvboxsync
134a71c1528b56afe4db843ab63ec5a5b849535bvboxsync
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync/** @defgroup grp_pgm_int Internals
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync * @ingroup grp_pgm
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync * @internal
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync * @{
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync */
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync
6420f75ffc86ab6494eb5e95418f0c95e71e8068vboxsync/** @name PGM Compile Time Config
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync * @{
6420f75ffc86ab6494eb5e95418f0c95e71e8068vboxsync */
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync/**
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync * Solve page is out of sync issues inside Guest Context (in PGMGC.cpp).
6420f75ffc86ab6494eb5e95418f0c95e71e8068vboxsync * Comment it if it will break something.
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync */
6420f75ffc86ab6494eb5e95418f0c95e71e8068vboxsync#define PGM_OUT_OF_SYNC_IN_GC
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync/**
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync * Check and skip global PDEs for non-global flushes
9ad5e3912962c3dbccc1afc4e7d62890fe906814vboxsync */
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#define PGM_SKIP_GLOBAL_PAGEDIRS_ON_NONGLOBAL_FLUSH
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync/**
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync * Optimization for PAE page tables that are modified often
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync */
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync#ifndef IN_RC
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync# define PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync#endif
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync/**
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync * Sync N pages instead of a whole page table
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync */
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync#define PGM_SYNC_N_PAGES
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync/**
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync * Number of pages to sync during a page fault
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync *
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync * When PGMPOOL_WITH_GCPHYS_TRACKING is enabled using high values here
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync * causes a lot of unnecessary extents and also is slower than taking more \#PFs.
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync */
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync#define PGM_SYNC_NR_PAGES 8
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync/**
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync * Number of PGMPhysRead/Write cache entries (must be <= sizeof(uint64_t))
436b5c616e019c5e62053657c52d3ab5562ecbbfvboxsync */
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#define PGM_MAX_PHYSCACHE_ENTRIES 64
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync#define PGM_MAX_PHYSCACHE_ENTRIES_MASK (PGM_MAX_PHYSCACHE_ENTRIES-1)
3609dfc9f2733f4dc836c6a6bb3745398f280fcevboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @def PGMPOOL_WITH_CACHE
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * Enable agressive caching using the page pool.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync *
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * This requires PGMPOOL_WITH_USER_TRACKING and PGMPOOL_WITH_MONITORING.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#define PGMPOOL_WITH_CACHE
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @def PGMPOOL_WITH_MIXED_PT_CR3
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * When defined, we'll deal with 'uncachable' pages.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync */
9ad5e3912962c3dbccc1afc4e7d62890fe906814vboxsync#ifdef PGMPOOL_WITH_CACHE
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync# define PGMPOOL_WITH_MIXED_PT_CR3
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#endif
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
b1c3cdef473df2fbc621d5da81acc82dbfb8a11avboxsync/** @def PGMPOOL_WITH_MONITORING
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync * Monitor the guest pages which are shadowed.
1d94b54d4bd24729c7383e89aa95518204192b22vboxsync * When this is enabled, PGMPOOL_WITH_CACHE or PGMPOOL_WITH_GCPHYS_TRACKING must
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * be enabled as well.
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync * @remark doesn't really work without caching now. (Mixed PT/CR3 change.)
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#ifdef PGMPOOL_WITH_CACHE
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync# define PGMPOOL_WITH_MONITORING
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#endif
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @def PGMPOOL_WITH_GCPHYS_TRACKING
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * Tracking the of shadow pages mapping guest physical pages.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync *
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * This is very expensive, the current cache prototype is trying to figure out
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * whether it will be acceptable with an agressive caching policy.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync */
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync#if defined(PGMPOOL_WITH_CACHE) || defined(PGMPOOL_WITH_MONITORING)
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync# define PGMPOOL_WITH_GCPHYS_TRACKING
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync#endif
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @def PGMPOOL_WITH_USER_TRACKING
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync * Tracking users of shadow pages. This is required for the linking of shadow page
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * tables and physical guest addresses.
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#if defined(PGMPOOL_WITH_GCPHYS_TRACKING) || defined(PGMPOOL_WITH_CACHE) || defined(PGMPOOL_WITH_MONITORING)
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync# define PGMPOOL_WITH_USER_TRACKING
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#endif
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @def PGMPOOL_CFG_MAX_GROW
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * The maximum number of pages to add to the pool in one go.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#define PGMPOOL_CFG_MAX_GROW (_256K >> PAGE_SHIFT)
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @def VBOX_STRICT_PGM_HANDLER_VIRTUAL
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync * Enables some extra assertions for virtual handlers (mainly phys2virt related).
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync */
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync#ifdef VBOX_STRICT
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync# define VBOX_STRICT_PGM_HANDLER_VIRTUAL
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#endif
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @def VBOX_WITH_NEW_LAZY_PAGE_ALLOC
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync * Enables the experimental lazy page allocation code. */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/*# define VBOX_WITH_NEW_LAZY_PAGE_ALLOC */
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @} */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @name PDPT and PML4 flags.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * These are placed in the three bits available for system programs in
134a71c1528b56afe4db843ab63ec5a5b849535bvboxsync * the PDPT and PML4 entries.
9ad5e3912962c3dbccc1afc4e7d62890fe906814vboxsync * @{ */
134a71c1528b56afe4db843ab63ec5a5b849535bvboxsync/** The entry is a permanent one and it's must always be present.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * Never free such an entry. */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#define PGM_PLXFLAGS_PERMANENT RT_BIT_64(10)
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** Mapping (hypervisor allocated pagetable). */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#define PGM_PLXFLAGS_MAPPING RT_BIT_64(11)
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @} */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** @name Page directory flags.
50fdc90dae026b2086f85b0f028aa63dd6bbe14evboxsync * These are placed in the three bits available for system programs in
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * the page directory entries.
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync * @{ */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** Mapping (hypervisor allocated pagetable). */
50fdc90dae026b2086f85b0f028aa63dd6bbe14evboxsync#define PGM_PDFLAGS_MAPPING RT_BIT_64(10)
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync/** Made read-only to facilitate dirty bit tracking. */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#define PGM_PDFLAGS_TRACK_DIRTY RT_BIT_64(11)
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync/** @} */
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync
289060a0c3cb1d509f2cb01fca060796212376f6vboxsync/** @name Page flags.
50fdc90dae026b2086f85b0f028aa63dd6bbe14evboxsync * These are placed in the three bits available for system programs in
50fdc90dae026b2086f85b0f028aa63dd6bbe14evboxsync * the page entries.
e8ac7dce6d625856c57792a6af738e2fe2667264vboxsync * @{ */
50fdc90dae026b2086f85b0f028aa63dd6bbe14evboxsync/** Made read-only to facilitate dirty bit tracking. */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#define PGM_PTFLAGS_TRACK_DIRTY RT_BIT_64(9)
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#ifndef PGM_PTFLAGS_CSAM_VALIDATED
1d94b54d4bd24729c7383e89aa95518204192b22vboxsync/** Scanned and approved by CSAM (tm).
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync * NOTE: Must be identical to the one defined in CSAMInternal.h!!
a9981806c72edadef6cccd253f4747c35677e9a1vboxsync * @todo Move PGM_PTFLAGS_* and PGM_PDFLAGS_* to VBox/pgm.h. */
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#define PGM_PTFLAGS_CSAM_VALIDATED RT_BIT_64(11)
611910c4ba57eb6db5c0d508ca7b923efd654aecvboxsync#endif
6f516ad9911d9037a18778742caa955fe362f8ffvboxsync
/** @} */
/** @name Defines used to indicate the shadow and guest paging in the templates.
* @{ */
#define PGM_TYPE_REAL 1
#define PGM_TYPE_PROT 2
#define PGM_TYPE_32BIT 3
#define PGM_TYPE_PAE 4
#define PGM_TYPE_AMD64 5
#define PGM_TYPE_NESTED 6
#define PGM_TYPE_EPT 7
#define PGM_TYPE_MAX PGM_TYPE_EPT
/** @} */
/** Macro for checking if the guest is using paging.
* @param uGstType PGM_TYPE_*
* @param uShwType PGM_TYPE_*
* @remark ASSUMES certain order of the PGM_TYPE_* values.
*/
#define PGM_WITH_PAGING(uGstType, uShwType) \
( (uGstType) >= PGM_TYPE_32BIT \
&& (uShwType) != PGM_TYPE_NESTED \
&& (uShwType) != PGM_TYPE_EPT)
/** Macro for checking if the guest supports the NX bit.
* @param uGstType PGM_TYPE_*
* @param uShwType PGM_TYPE_*
* @remark ASSUMES certain order of the PGM_TYPE_* values.
*/
#define PGM_WITH_NX(uGstType, uShwType) \
( (uGstType) >= PGM_TYPE_PAE \
&& (uShwType) != PGM_TYPE_NESTED \
&& (uShwType) != PGM_TYPE_EPT)
/** @def PGM_HCPHYS_2_PTR
* Maps a HC physical page pool address to a virtual address.
*
* @returns VBox status code.
* @param pVM The VM handle.
* @param HCPhys The HC physical address to map to a virtual one.
* @param ppv Where to store the virtual address. No need to cast this.
*
* @remark In GC this uses PGMGCDynMapHCPage(), so it will consume of the
* small page window employeed by that function. Be careful.
* @remark There is no need to assert on the result.
*/
#ifdef IN_RC
# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) \
PGMDynMapHCPage(pVM, HCPhys, (void **)(ppv))
#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) \
pgmR0DynMapHCPageInlined(&(pVM)->pgm.s, HCPhys, (void **)(ppv))
#else
# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) \
MMPagePhys2PageEx(pVM, HCPhys, (void **)(ppv))
#endif
/** @def PGM_HCPHYS_2_PTR_BY_PGM
* Maps a HC physical page pool address to a virtual address.
*
* @returns VBox status code.
* @param pPGM The PGM instance data.
* @param HCPhys The HC physical address to map to a virtual one.
* @param ppv Where to store the virtual address. No need to cast this.
*
* @remark In GC this uses PGMGCDynMapHCPage(), so it will consume of the
* small page window employeed by that function. Be careful.
* @remark There is no need to assert on the result.
*/
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
# define PGM_HCPHYS_2_PTR_BY_PGM(pPGM, HCPhys, ppv) \
pgmR0DynMapHCPageInlined(pPGM, HCPhys, (void **)(ppv))
#else
# define PGM_HCPHYS_2_PTR_BY_PGM(pPGM, HCPhys, ppv) \
PGM_HCPHYS_2_PTR(PGM2VM(pPGM), HCPhys, (void **)(ppv))
#endif
/** @def PGM_GCPHYS_2_PTR
* Maps a GC physical page address to a virtual address.
*
* @returns VBox status code.
* @param pVM The VM handle.
* @param GCPhys The GC physical address to map to a virtual one.
* @param ppv Where to store the virtual address. No need to cast this.
*
* @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
* small page window employeed by that function. Be careful.
* @remark There is no need to assert on the result.
*/
#ifdef IN_RC
# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) \
PGMDynMapGCPage(pVM, GCPhys, (void **)(ppv))
#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) \
pgmR0DynMapGCPageInlined(&(pVM)->pgm.s, GCPhys, (void **)(ppv))
#else
# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) \
PGMPhysGCPhys2R3Ptr(pVM, GCPhys, 1 /* one page only */, (PRTR3PTR)(ppv)) /** @todo this isn't asserting, use PGMRamGCPhys2HCPtr! */
#endif
/** @def PGM_GCPHYS_2_PTR_BY_PGMCPU
* Maps a GC physical page address to a virtual address.
*
* @returns VBox status code.
* @param pPGM Pointer to the PGM instance data.
* @param GCPhys The GC physical address to map to a virtual one.
* @param ppv Where to store the virtual address. No need to cast this.
*
* @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
* small page window employeed by that function. Be careful.
* @remark There is no need to assert on the result.
*/
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
# define PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, GCPhys, ppv) \
pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), GCPhys, (void **)(ppv))
#else
# define PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, GCPhys, ppv) \
PGM_GCPHYS_2_PTR(PGMCPU2VM(pPGM), GCPhys, ppv)
#endif
/** @def PGM_GCPHYS_2_PTR_EX
* Maps a unaligned GC physical page address to a virtual address.
*
* @returns VBox status code.
* @param pVM The VM handle.
* @param GCPhys The GC physical address to map to a virtual one.
* @param ppv Where to store the virtual address. No need to cast this.
*
* @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
* small page window employeed by that function. Be careful.
* @remark There is no need to assert on the result.
*/
#if defined(IN_RC) || defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) \
PGMDynMapGCPageOff(pVM, GCPhys, (void **)(ppv))
#else
# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) \
PGMPhysGCPhys2R3Ptr(pVM, GCPhys, 1 /* one page only */, (PRTR3PTR)(ppv)) /** @todo this isn't asserting, use PGMRamGCPhys2HCPtr! */
#endif
/** @def PGM_INVL_PG
* Invalidates a page.
*
* @param pVCpu The VMCPU handle.
* @param GCVirt The virtual address of the page to invalidate.
*/
#ifdef IN_RC
# define PGM_INVL_PG(pVCpu, GCVirt) ASMInvalidatePage((void *)(GCVirt))
#elif defined(IN_RING0)
# define PGM_INVL_PG(pVCpu, GCVirt) HWACCMInvalidatePage(pVCpu, (RTGCPTR)(GCVirt))
#else
# define PGM_INVL_PG(pVCpu, GCVirt) HWACCMInvalidatePage(pVCpu, (RTGCPTR)(GCVirt))
#endif
/** @def PGM_INVL_PG_ALL_VCPU
* Invalidates a page on all VCPUs
*
* @param pVM The VM handle.
* @param GCVirt The virtual address of the page to invalidate.
*/
#ifdef IN_RC
# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) ASMInvalidatePage((void *)(GCVirt))
#elif defined(IN_RING0)
# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) HWACCMInvalidatePageOnAllVCpus(pVM, (RTGCPTR)(GCVirt))
#else
# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) HWACCMInvalidatePageOnAllVCpus(pVM, (RTGCPTR)(GCVirt))
#endif
/** @def PGM_INVL_BIG_PG
* Invalidates a 4MB page directory entry.
*
* @param pVCpu The VMCPU handle.
* @param GCVirt The virtual address within the page directory to invalidate.
*/
#ifdef IN_RC
# define PGM_INVL_BIG_PG(pVCpu, GCVirt) ASMReloadCR3()
#elif defined(IN_RING0)
# define PGM_INVL_BIG_PG(pVCpu, GCVirt) HWACCMFlushTLB(pVCpu)
#else
# define PGM_INVL_BIG_PG(pVCpu, GCVirt) HWACCMFlushTLB(pVCpu)
#endif
/** @def PGM_INVL_VCPU_TLBS()
* Invalidates the TLBs of the specified VCPU
*
* @param pVCpu The VMCPU handle.
*/
#ifdef IN_RC
# define PGM_INVL_VCPU_TLBS(pVCpu) ASMReloadCR3()
#elif defined(IN_RING0)
# define PGM_INVL_VCPU_TLBS(pVCpu) HWACCMFlushTLB(pVCpu)
#else
# define PGM_INVL_VCPU_TLBS(pVCpu) HWACCMFlushTLB(pVCpu)
#endif
/** @def PGM_INVL_ALL_VCPU_TLBS()
* Invalidates the TLBs of all VCPUs
*
* @param pVM The VM handle.
*/
#ifdef IN_RC
# define PGM_INVL_ALL_VCPU_TLBS(pVM) ASMReloadCR3()
#elif defined(IN_RING0)
# define PGM_INVL_ALL_VCPU_TLBS(pVM) HWACCMFlushTLBOnAllVCpus(pVM)
#else
# define PGM_INVL_ALL_VCPU_TLBS(pVM) HWACCMFlushTLBOnAllVCpus(pVM)
#endif
/** Size of the GCPtrConflict array in PGMMAPPING.
* @remarks Must be a power of two. */
#define PGMMAPPING_CONFLICT_MAX 8
/**
* Structure for tracking GC Mappings.
*
* This structure is used by linked list in both GC and HC.
*/
typedef struct PGMMAPPING
{
/** Pointer to next entry. */
R3PTRTYPE(struct PGMMAPPING *) pNextR3;
/** Pointer to next entry. */
R0PTRTYPE(struct PGMMAPPING *) pNextR0;
/** Pointer to next entry. */
RCPTRTYPE(struct PGMMAPPING *) pNextRC;
/** Indicate whether this entry is finalized. */
bool fFinalized;
/** Start Virtual address. */
RTGCPTR GCPtr;
/** Last Virtual address (inclusive). */
RTGCPTR GCPtrLast;
/** Range size (bytes). */
RTGCPTR cb;
/** Pointer to relocation callback function. */
R3PTRTYPE(PFNPGMRELOCATE) pfnRelocate;
/** User argument to the callback. */
R3PTRTYPE(void *) pvUser;
/** Mapping description / name. For easing debugging. */
R3PTRTYPE(const char *) pszDesc;
/** Last 8 addresses that caused conflicts. */
RTGCPTR aGCPtrConflicts[PGMMAPPING_CONFLICT_MAX];
/** Number of conflicts for this hypervisor mapping. */
uint32_t cConflicts;
/** Number of page tables. */
uint32_t cPTs;
/** Array of page table mapping data. Each entry
* describes one page table. The array can be longer
* than the declared length.
*/
struct
{
/** The HC physical address of the page table. */
RTHCPHYS HCPhysPT;
/** The HC physical address of the first PAE page table. */
RTHCPHYS HCPhysPaePT0;
/** The HC physical address of the second PAE page table. */
RTHCPHYS HCPhysPaePT1;
/** The HC virtual address of the 32-bit page table. */
R3PTRTYPE(PX86PT) pPTR3;
/** The HC virtual address of the two PAE page table. (i.e 1024 entries instead of 512) */
R3PTRTYPE(PX86PTPAE) paPaePTsR3;
/** The RC virtual address of the 32-bit page table. */
RCPTRTYPE(PX86PT) pPTRC;
/** The RC virtual address of the two PAE page table. */
RCPTRTYPE(PX86PTPAE) paPaePTsRC;
/** The R0 virtual address of the 32-bit page table. */
R0PTRTYPE(PX86PT) pPTR0;
/** The R0 virtual address of the two PAE page table. */
R0PTRTYPE(PX86PTPAE) paPaePTsR0;
} aPTs[1];
} PGMMAPPING;
/** Pointer to structure for tracking GC Mappings. */
typedef struct PGMMAPPING *PPGMMAPPING;
/**
* Physical page access handler structure.
*
* This is used to keep track of physical address ranges
* which are being monitored in some kind of way.
*/
typedef struct PGMPHYSHANDLER
{
AVLROGCPHYSNODECORE Core;
/** Access type. */
PGMPHYSHANDLERTYPE enmType;
/** Number of pages to update. */
uint32_t cPages;
/** Pointer to R3 callback function. */
R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnHandlerR3;
/** User argument for R3 handlers. */
R3PTRTYPE(void *) pvUserR3;
/** Pointer to R0 callback function. */
R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnHandlerR0;
/** User argument for R0 handlers. */
R0PTRTYPE(void *) pvUserR0;
/** Pointer to RC callback function. */
RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnHandlerRC;
/** User argument for RC handlers. */
RCPTRTYPE(void *) pvUserRC;
/** Description / Name. For easing debugging. */
R3PTRTYPE(const char *) pszDesc;
#ifdef VBOX_WITH_STATISTICS
/** Profiling of this handler. */
STAMPROFILE Stat;
#endif
} PGMPHYSHANDLER;
/** Pointer to a physical page access handler structure. */
typedef PGMPHYSHANDLER *PPGMPHYSHANDLER;
/**
* Cache node for the physical addresses covered by a virtual handler.
*/
typedef struct PGMPHYS2VIRTHANDLER
{
/** Core node for the tree based on physical ranges. */
AVLROGCPHYSNODECORE Core;
/** Offset from this struct to the PGMVIRTHANDLER structure. */
int32_t offVirtHandler;
/** Offset of the next alias relative to this one.
* Bit 0 is used for indicating whether we're in the tree.
* Bit 1 is used for indicating that we're the head node.
*/
int32_t offNextAlias;
} PGMPHYS2VIRTHANDLER;
/** Pointer to a phys to virtual handler structure. */
typedef PGMPHYS2VIRTHANDLER *PPGMPHYS2VIRTHANDLER;
/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
* node is in the tree. */
#define PGMPHYS2VIRTHANDLER_IN_TREE RT_BIT(0)
/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
* node is in the head of an alias chain.
* The PGMPHYS2VIRTHANDLER_IN_TREE is always set if this bit is set. */
#define PGMPHYS2VIRTHANDLER_IS_HEAD RT_BIT(1)
/** The mask to apply to PGMPHYS2VIRTHANDLER::offNextAlias to get the offset. */
#define PGMPHYS2VIRTHANDLER_OFF_MASK (~(int32_t)3)
/**
* Virtual page access handler structure.
*
* This is used to keep track of virtual address ranges
* which are being monitored in some kind of way.
*/
typedef struct PGMVIRTHANDLER
{
/** Core node for the tree based on virtual ranges. */
AVLROGCPTRNODECORE Core;
/** Size of the range (in bytes). */
RTGCPTR cb;
/** Number of cache pages. */
uint32_t cPages;
/** Access type. */
PGMVIRTHANDLERTYPE enmType;
/** Pointer to the RC callback function. */
RCPTRTYPE(PFNPGMRCVIRTHANDLER) pfnHandlerRC;
#if HC_ARCH_BITS == 64
RTRCPTR padding;
#endif
/** Pointer to the R3 callback function for invalidation. */
R3PTRTYPE(PFNPGMR3VIRTINVALIDATE) pfnInvalidateR3;
/** Pointer to the R3 callback function. */
R3PTRTYPE(PFNPGMR3VIRTHANDLER) pfnHandlerR3;
/** Description / Name. For easing debugging. */
R3PTRTYPE(const char *) pszDesc;
#ifdef VBOX_WITH_STATISTICS
/** Profiling of this handler. */
STAMPROFILE Stat;
#endif
/** Array of cached physical addresses for the monitored ranged. */
PGMPHYS2VIRTHANDLER aPhysToVirt[HC_ARCH_BITS == 32 ? 1 : 2];
} PGMVIRTHANDLER;
/** Pointer to a virtual page access handler structure. */
typedef PGMVIRTHANDLER *PPGMVIRTHANDLER;
/**
* Page type.
*
* @remarks This enum has to fit in a 3-bit field (see PGMPAGE::u3Type).
* @remarks This is used in the saved state, so changes to it requires bumping
* the saved state version.
* @todo So, convert to \#defines!
*/
typedef enum PGMPAGETYPE
{
/** The usual invalid zero entry. */
PGMPAGETYPE_INVALID = 0,
/** RAM page. (RWX) */
PGMPAGETYPE_RAM,
/** MMIO2 page. (RWX) */
PGMPAGETYPE_MMIO2,
/** MMIO2 page aliased over an MMIO page. (RWX)
* See PGMHandlerPhysicalPageAlias(). */
PGMPAGETYPE_MMIO2_ALIAS_MMIO,
/** Shadowed ROM. (RWX) */
PGMPAGETYPE_ROM_SHADOW,
/** ROM page. (R-X) */
PGMPAGETYPE_ROM,
/** MMIO page. (---) */
PGMPAGETYPE_MMIO,
/** End of valid entries. */
PGMPAGETYPE_END
} PGMPAGETYPE;
AssertCompile(PGMPAGETYPE_END <= 7);
/** @name Page type predicates.
* @{ */
#define PGMPAGETYPE_IS_READABLE(type) ( (type) <= PGMPAGETYPE_ROM )
#define PGMPAGETYPE_IS_WRITEABLE(type) ( (type) <= PGMPAGETYPE_ROM_SHADOW )
#define PGMPAGETYPE_IS_RWX(type) ( (type) <= PGMPAGETYPE_ROM_SHADOW )
#define PGMPAGETYPE_IS_ROX(type) ( (type) == PGMPAGETYPE_ROM )
#define PGMPAGETYPE_IS_NP(type) ( (type) == PGMPAGETYPE_MMIO )
/** @} */
/**
* A Physical Guest Page tracking structure.
*
* The format of this structure is complicated because we have to fit a lot
* of information into as few bits as possible. The format is also subject
* to change (there is one comming up soon). Which means that for we'll be
* using PGM_PAGE_GET_*, PGM_PAGE_IS_ and PGM_PAGE_SET_* macros for *all*
* accessess to the structure.
*/
typedef struct PGMPAGE
{
/** The physical address and a whole lot of other stuff. All bits are used! */
RTHCPHYS HCPhysX;
/** The page state. */
uint32_t u2StateX : 2;
/** Flag indicating that a write monitored page was written to when set. */
uint32_t fWrittenToX : 1;
/** For later. */
uint32_t fSomethingElse : 1;
/** The Page ID.
* @todo Merge with HCPhysX once we've liberated HCPhysX of its stuff.
* The HCPhysX will then be 100% static. */
uint32_t idPageX : 28;
/** The page type (PGMPAGETYPE). */
uint32_t u3Type : 3;
/** The physical handler state (PGM_PAGE_HNDL_PHYS_STATE*) */
uint32_t u2HandlerPhysStateX : 2;
/** The virtual handler state (PGM_PAGE_HNDL_VIRT_STATE*) */
uint32_t u2HandlerVirtStateX : 2;
uint32_t u29B : 25;
} PGMPAGE;
AssertCompileSize(PGMPAGE, 16);
/** Pointer to a physical guest page. */
typedef PGMPAGE *PPGMPAGE;
/** Pointer to a const physical guest page. */
typedef const PGMPAGE *PCPGMPAGE;
/** Pointer to a physical guest page pointer. */
typedef PPGMPAGE *PPPGMPAGE;
/**
* Clears the page structure.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_CLEAR(pPage) \
do { \
(pPage)->HCPhysX = 0; \
(pPage)->u2StateX = 0; \
(pPage)->fWrittenToX = 0; \
(pPage)->fSomethingElse = 0; \
(pPage)->idPageX = 0; \
(pPage)->u3Type = 0; \
(pPage)->u29B = 0; \
} while (0)
/**
* Initializes the page structure.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_INIT(pPage, _HCPhys, _idPage, _uType, _uState) \
do { \
(pPage)->HCPhysX = (_HCPhys); \
(pPage)->u2StateX = (_uState); \
(pPage)->fWrittenToX = 0; \
(pPage)->fSomethingElse = 0; \
(pPage)->idPageX = (_idPage); \
/*(pPage)->u3Type = (_uType); - later */ \
PGM_PAGE_SET_TYPE(pPage, _uType); \
(pPage)->u29B = 0; \
} while (0)
/**
* Initializes the page structure of a ZERO page.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_INIT_ZERO(pPage, pVM, _uType) \
PGM_PAGE_INIT(pPage, (pVM)->pgm.s.HCPhysZeroPg, NIL_GMM_PAGEID, (_uType), PGM_PAGE_STATE_ZERO)
/** Temporary hack. Replaced by PGM_PAGE_INIT_ZERO once the old code is kicked out. */
# define PGM_PAGE_INIT_ZERO_REAL(pPage, pVM, _uType) \
PGM_PAGE_INIT(pPage, (pVM)->pgm.s.HCPhysZeroPg, NIL_GMM_PAGEID, (_uType), PGM_PAGE_STATE_ZERO)
/** @name The Page state, PGMPAGE::u2StateX.
* @{ */
/** The zero page.
* This is a per-VM page that's never ever mapped writable. */
#define PGM_PAGE_STATE_ZERO 0
/** A allocated page.
* This is a per-VM page allocated from the page pool (or wherever
* we get MMIO2 pages from if the type is MMIO2).
*/
#define PGM_PAGE_STATE_ALLOCATED 1
/** A allocated page that's being monitored for writes.
* The shadow page table mappings are read-only. When a write occurs, the
* fWrittenTo member is set, the page remapped as read-write and the state
* moved back to allocated. */
#define PGM_PAGE_STATE_WRITE_MONITORED 2
/** The page is shared, aka. copy-on-write.
* This is a page that's shared with other VMs. */
#define PGM_PAGE_STATE_SHARED 3
/** @} */
/**
* Gets the page state.
* @returns page state (PGM_PAGE_STATE_*).
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_STATE(pPage) ( (pPage)->u2StateX )
/**
* Sets the page state.
* @param pPage Pointer to the physical guest page tracking structure.
* @param _uState The new page state.
*/
#define PGM_PAGE_SET_STATE(pPage, _uState) \
do { (pPage)->u2StateX = (_uState); } while (0)
/**
* Gets the host physical address of the guest page.
* @returns host physical address (RTHCPHYS).
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_HCPHYS(pPage) ( (pPage)->HCPhysX & UINT64_C(0x0000fffffffff000) )
/**
* Sets the host physical address of the guest page.
* @param pPage Pointer to the physical guest page tracking structure.
* @param _HCPhys The new host physical address.
*/
#define PGM_PAGE_SET_HCPHYS(pPage, _HCPhys) \
do { (pPage)->HCPhysX = (((pPage)->HCPhysX) & UINT64_C(0xffff000000000fff)) \
| ((_HCPhys) & UINT64_C(0x0000fffffffff000)); } while (0)
/**
* Get the Page ID.
* @returns The Page ID; NIL_GMM_PAGEID if it's a ZERO page.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_PAGEID(pPage) ( (pPage)->idPageX )
/* later:
#define PGM_PAGE_GET_PAGEID(pPage) ( ((uint32_t)(pPage)->HCPhysX >> (48 - 12))
| ((uint32_t)(pPage)->HCPhysX & 0xfff) )
*/
/**
* Sets the Page ID.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_SET_PAGEID(pPage, _idPage) do { (pPage)->idPageX = (_idPage); } while (0)
/* later:
#define PGM_PAGE_SET_PAGEID(pPage, _idPage) do { (pPage)->HCPhysX = (((pPage)->HCPhysX) & UINT64_C(0x0000fffffffff000)) \
| ((_idPage) & 0xfff) \
| (((_idPage) & 0x0ffff000) << (48-12)); } while (0)
*/
/**
* Get the Chunk ID.
* @returns The Chunk ID; NIL_GMM_CHUNKID if it's a ZERO page.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_CHUNKID(pPage) ( (pPage)->idPageX >> GMM_CHUNKID_SHIFT )
/* later:
#if GMM_CHUNKID_SHIFT == 12
# define PGM_PAGE_GET_CHUNKID(pPage) ( (uint32_t)((pPage)->HCPhysX >> 48) )
#elif GMM_CHUNKID_SHIFT > 12
# define PGM_PAGE_GET_CHUNKID(pPage) ( (uint32_t)((pPage)->HCPhysX >> (48 + (GMM_CHUNKID_SHIFT - 12)) )
#elif GMM_CHUNKID_SHIFT < 12
# define PGM_PAGE_GET_CHUNKID(pPage) ( ( (uint32_t)((pPage)->HCPhysX >> 48) << (12 - GMM_CHUNKID_SHIFT) ) \
| ( (uint32_t)((pPage)->HCPhysX & 0xfff) >> GMM_CHUNKID_SHIFT ) )
#else
# error "GMM_CHUNKID_SHIFT isn't defined or something."
#endif
*/
/**
* Get the index of the page within the allocaiton chunk.
* @returns The page index.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_PAGE_IN_CHUNK(pPage) ( (pPage)->idPageX & GMM_PAGEID_IDX_MASK )
/* later:
#if GMM_CHUNKID_SHIFT <= 12
# define PGM_PAGE_GET_PAGE_IN_CHUNK(pPage) ( (uint32_t)((pPage)->HCPhysX & GMM_PAGEID_IDX_MASK) )
#else
# define PGM_PAGE_GET_PAGE_IN_CHUNK(pPage) ( (uint32_t)((pPage)->HCPhysX & 0xfff) \
| ( (uint32_t)((pPage)->HCPhysX >> 48) & (RT_BIT_32(GMM_CHUNKID_SHIFT - 12) - 1) ) )
#endif
*/
/**
* Gets the page type.
* @returns The page type.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_TYPE(pPage) (pPage)->u3Type
/**
* Sets the page type.
* @param pPage Pointer to the physical guest page tracking structure.
* @param _enmType The new page type (PGMPAGETYPE).
*/
#define PGM_PAGE_SET_TYPE(pPage, _enmType) \
do { (pPage)->u3Type = (_enmType); } while (0)
/**
* Checks if the page is marked for MMIO.
* @returns true/false.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_IS_MMIO(pPage) ( (pPage)->u3Type == PGMPAGETYPE_MMIO )
/**
* Checks if the page is backed by the ZERO page.
* @returns true/false.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_IS_ZERO(pPage) ( (pPage)->u2StateX == PGM_PAGE_STATE_ZERO )
/**
* Checks if the page is backed by a SHARED page.
* @returns true/false.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_IS_SHARED(pPage) ( (pPage)->u2StateX == PGM_PAGE_STATE_SHARED )
/**
* Marks the paget as written to (for GMM change monitoring).
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_SET_WRITTEN_TO(pPage) do { (pPage)->fWrittenToX = 1; } while (0)
/**
* Clears the written-to indicator.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_CLEAR_WRITTEN_TO(pPage) do { (pPage)->fWrittenToX = 0; } while (0)
/**
* Checks if the page was marked as written-to.
* @returns true/false.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_IS_WRITTEN_TO(pPage) ( (pPage)->fWrittenToX )
/** @name Physical Access Handler State values (PGMPAGE::u2HandlerPhysStateX).
*
* @remarks The values are assigned in order of priority, so we can calculate
* the correct state for a page with different handlers installed.
* @{ */
/** No handler installed. */
#define PGM_PAGE_HNDL_PHYS_STATE_NONE 0
/** Monitoring is temporarily disabled. */
#define PGM_PAGE_HNDL_PHYS_STATE_DISABLED 1
/** Write access is monitored. */
#define PGM_PAGE_HNDL_PHYS_STATE_WRITE 2
/** All access is monitored. */
#define PGM_PAGE_HNDL_PHYS_STATE_ALL 3
/** @} */
/**
* Gets the physical access handler state of a page.
* @returns PGM_PAGE_HNDL_PHYS_STATE_* value.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_HNDL_PHYS_STATE(pPage) ( (pPage)->u2HandlerPhysStateX )
/**
* Sets the physical access handler state of a page.
* @param pPage Pointer to the physical guest page tracking structure.
* @param _uState The new state value.
*/
#define PGM_PAGE_SET_HNDL_PHYS_STATE(pPage, _uState) \
do { (pPage)->u2HandlerPhysStateX = (_uState); } while (0)
/**
* Checks if the page has any physical access handlers, including temporariliy disabled ones.
* @returns true/false
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_HAS_ANY_PHYSICAL_HANDLERS(pPage) ( (pPage)->u2HandlerPhysStateX != PGM_PAGE_HNDL_PHYS_STATE_NONE )
/**
* Checks if the page has any active physical access handlers.
* @returns true/false
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_HAS_ACTIVE_PHYSICAL_HANDLERS(pPage) ( (pPage)->u2HandlerPhysStateX >= PGM_PAGE_HNDL_PHYS_STATE_WRITE )
/** @name Virtual Access Handler State values (PGMPAGE::u2HandlerVirtStateX).
*
* @remarks The values are assigned in order of priority, so we can calculate
* the correct state for a page with different handlers installed.
* @{ */
/** No handler installed. */
#define PGM_PAGE_HNDL_VIRT_STATE_NONE 0
/* 1 is reserved so the lineup is identical with the physical ones. */
/** Write access is monitored. */
#define PGM_PAGE_HNDL_VIRT_STATE_WRITE 2
/** All access is monitored. */
#define PGM_PAGE_HNDL_VIRT_STATE_ALL 3
/** @} */
/**
* Gets the virtual access handler state of a page.
* @returns PGM_PAGE_HNDL_VIRT_STATE_* value.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_HNDL_VIRT_STATE(pPage) ( (pPage)->u2HandlerVirtStateX )
/**
* Sets the virtual access handler state of a page.
* @param pPage Pointer to the physical guest page tracking structure.
* @param _uState The new state value.
*/
#define PGM_PAGE_SET_HNDL_VIRT_STATE(pPage, _uState) \
do { (pPage)->u2HandlerVirtStateX = (_uState); } while (0)
/**
* Checks if the page has any virtual access handlers.
* @returns true/false
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS(pPage) ( (pPage)->u2HandlerVirtStateX != PGM_PAGE_HNDL_VIRT_STATE_NONE )
/**
* Same as PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS - can't disable pages in
* virtual handlers.
* @returns true/false
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_HAS_ACTIVE_VIRTUAL_HANDLERS(pPage) PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS(pPage)
/**
* Checks if the page has any access handlers, including temporarily disabled ones.
* @returns true/false
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_HAS_ANY_HANDLERS(pPage) \
( (pPage)->u2HandlerPhysStateX != PGM_PAGE_HNDL_PHYS_STATE_NONE \
|| (pPage)->u2HandlerVirtStateX != PGM_PAGE_HNDL_VIRT_STATE_NONE )
/**
* Checks if the page has any active access handlers.
* @returns true/false
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_HAS_ACTIVE_HANDLERS(pPage) \
( (pPage)->u2HandlerPhysStateX >= PGM_PAGE_HNDL_PHYS_STATE_WRITE \
|| (pPage)->u2HandlerVirtStateX >= PGM_PAGE_HNDL_VIRT_STATE_WRITE )
/**
* Checks if the page has any active access handlers catching all accesses.
* @returns true/false
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(pPage) \
( (pPage)->u2HandlerPhysStateX == PGM_PAGE_HNDL_PHYS_STATE_ALL \
|| (pPage)->u2HandlerVirtStateX == PGM_PAGE_HNDL_VIRT_STATE_ALL )
/** @def PGM_PAGE_GET_TRACKING
* Gets the packed shadow page pool tracking data associated with a guest page.
* @returns uint16_t containing the data.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_TRACKING(pPage) \
( *((uint16_t *)&(pPage)->HCPhysX + 3) )
/** @def PGM_PAGE_SET_TRACKING
* Sets the packed shadow page pool tracking data associated with a guest page.
* @param pPage Pointer to the physical guest page tracking structure.
* @param u16TrackingData The tracking data to store.
*/
#define PGM_PAGE_SET_TRACKING(pPage, u16TrackingData) \
do { *((uint16_t *)&(pPage)->HCPhysX + 3) = (u16TrackingData); } while (0)
/** @def PGM_PAGE_GET_TD_CREFS
* Gets the @a cRefs tracking data member.
* @returns cRefs.
* @param pPage Pointer to the physical guest page tracking structure.
*/
#define PGM_PAGE_GET_TD_CREFS(pPage) \
((PGM_PAGE_GET_TRACKING(pPage) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK)
#define PGM_PAGE_GET_TD_IDX(pPage) \
((PGM_PAGE_GET_TRACKING(pPage) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK)
/**
* Ram range for GC Phys to HC Phys conversion.
*
* Can be used for HC Virt to GC Phys and HC Virt to HC Phys
* conversions too, but we'll let MM handle that for now.
*
* This structure is used by linked lists in both GC and HC.
*/
typedef struct PGMRAMRANGE
{
/** Start of the range. Page aligned. */
RTGCPHYS GCPhys;
/** Size of the range. (Page aligned of course). */
RTGCPHYS cb;
/** Pointer to the next RAM range - for R3. */
R3PTRTYPE(struct PGMRAMRANGE *) pNextR3;
/** Pointer to the next RAM range - for R0. */
R0PTRTYPE(struct PGMRAMRANGE *) pNextR0;
/** Pointer to the next RAM range - for RC. */
RCPTRTYPE(struct PGMRAMRANGE *) pNextRC;
/** PGM_RAM_RANGE_FLAGS_* flags. */
uint32_t fFlags;
/** Last address in the range (inclusive). Page aligned (-1). */
RTGCPHYS GCPhysLast;
/** Start of the HC mapping of the range. This is only used for MMIO2. */
R3PTRTYPE(void *) pvR3;
/** The range description. */
R3PTRTYPE(const char *) pszDesc;
/** Pointer to self - R0 pointer. */
R0PTRTYPE(struct PGMRAMRANGE *) pSelfR0;
/** Pointer to self - RC pointer. */
RCPTRTYPE(struct PGMRAMRANGE *) pSelfRC;
/** Padding to make aPage aligned on sizeof(PGMPAGE). */
uint32_t au32Alignment2[HC_ARCH_BITS == 32 ? 2 : 1];
/** Array of physical guest page tracking structures. */
PGMPAGE aPages[1];
} PGMRAMRANGE;
/** Pointer to Ram range for GC Phys to HC Phys conversion. */
typedef PGMRAMRANGE *PPGMRAMRANGE;
/** @name PGMRAMRANGE::fFlags
* @{ */
/** The RAM range is floating around as an independent guest mapping. */
#define PGM_RAM_RANGE_FLAGS_FLOATING RT_BIT(20)
/** @} */
/**
* Per page tracking structure for ROM image.
*
* A ROM image may have a shadow page, in which case we may have
* two pages backing it. This structure contains the PGMPAGE for
* both while PGMRAMRANGE have a copy of the active one. It is
* important that these aren't out of sync in any regard other
* than page pool tracking data.
*/
typedef struct PGMROMPAGE
{
/** The page structure for the virgin ROM page. */
PGMPAGE Virgin;
/** The page structure for the shadow RAM page. */
PGMPAGE Shadow;
/** The current protection setting. */
PGMROMPROT enmProt;
/** Pad the structure size to a multiple of 8. */
uint32_t u32Padding;
} PGMROMPAGE;
/** Pointer to a ROM page tracking structure. */
typedef PGMROMPAGE *PPGMROMPAGE;
/**
* A registered ROM image.
*
* This is needed to keep track of ROM image since they generally
* intrude into a PGMRAMRANGE. It also keeps track of additional
* info like the two page sets (read-only virgin and read-write shadow),
* the current state of each page.
*
* Because access handlers cannot easily be executed in a different
* context, the ROM ranges needs to be accessible and in all contexts.
*/
typedef struct PGMROMRANGE
{
/** Pointer to the next range - R3. */
R3PTRTYPE(struct PGMROMRANGE *) pNextR3;
/** Pointer to the next range - R0. */
R0PTRTYPE(struct PGMROMRANGE *) pNextR0;
/** Pointer to the next range - RC. */
RCPTRTYPE(struct PGMROMRANGE *) pNextRC;
/** Pointer alignment */
RTRCPTR GCPtrAlignment;
/** Address of the range. */
RTGCPHYS GCPhys;
/** Address of the last byte in the range. */
RTGCPHYS GCPhysLast;
/** Size of the range. */
RTGCPHYS cb;
/** The flags (PGMPHYS_ROM_FLAG_*). */
uint32_t fFlags;
/** Alignment padding ensuring that aPages is sizeof(PGMROMPAGE) aligned. */
uint32_t au32Alignemnt[HC_ARCH_BITS == 32 ? 7 : 3];
/** Pointer to the original bits when PGMPHYS_ROM_FLAGS_PERMANENT_BINARY was specified.
* This is used for strictness checks. */
R3PTRTYPE(const void *) pvOriginal;
/** The ROM description. */
R3PTRTYPE(const char *) pszDesc;
/** The per page tracking structures. */
PGMROMPAGE aPages[1];
} PGMROMRANGE;
/** Pointer to a ROM range. */
typedef PGMROMRANGE *PPGMROMRANGE;
/**
* A registered MMIO2 (= Device RAM) range.
*
* There are a few reason why we need to keep track of these
* registrations. One of them is the deregistration & cleanup
* stuff, while another is that the PGMRAMRANGE associated with
* such a region may have to be removed from the ram range list.
*
* Overlapping with a RAM range has to be 100% or none at all. The
* pages in the existing RAM range must not be ROM nor MMIO. A guru
* meditation will be raised if a partial overlap or an overlap of
* ROM pages is encountered. On an overlap we will free all the
* existing RAM pages and put in the ram range pages instead.
*/
typedef struct PGMMMIO2RANGE
{
/** The owner of the range. (a device) */
PPDMDEVINSR3 pDevInsR3;
/** Pointer to the ring-3 mapping of the allocation. */
RTR3PTR pvR3;
/** Pointer to the next range - R3. */
R3PTRTYPE(struct PGMMMIO2RANGE *) pNextR3;
/** Whether it's mapped or not. */
bool fMapped;
/** Whether it's overlapping or not. */
bool fOverlapping;
/** The PCI region number.
* @remarks This ASSUMES that nobody will ever really need to have multiple
* PCI devices with matching MMIO region numbers on a single device. */
uint8_t iRegion;
/** Alignment padding for putting the ram range on a PGMPAGE alignment boundrary. */
uint8_t abAlignemnt[HC_ARCH_BITS == 32 ? 1 : 5];
/** The associated RAM range. */
PGMRAMRANGE RamRange;
} PGMMMIO2RANGE;
/** Pointer to a MMIO2 range. */
typedef PGMMMIO2RANGE *PPGMMMIO2RANGE;
/**
* PGMPhysRead/Write cache entry
*/
typedef struct PGMPHYSCACHEENTRY
{
/** R3 pointer to physical page. */
R3PTRTYPE(uint8_t *) pbR3;
/** GC Physical address for cache entry */
RTGCPHYS GCPhys;
#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
RTGCPHYS u32Padding0; /**< alignment padding. */
#endif
} PGMPHYSCACHEENTRY;
/**
* PGMPhysRead/Write cache to reduce REM memory access overhead
*/
typedef struct PGMPHYSCACHE
{
/** Bitmap of valid cache entries */
uint64_t aEntries;
/** Cache entries */
PGMPHYSCACHEENTRY Entry[PGM_MAX_PHYSCACHE_ENTRIES];
} PGMPHYSCACHE;
/** Pointer to an allocation chunk ring-3 mapping. */
typedef struct PGMCHUNKR3MAP *PPGMCHUNKR3MAP;
/** Pointer to an allocation chunk ring-3 mapping pointer. */
typedef PPGMCHUNKR3MAP *PPPGMCHUNKR3MAP;
/**
* Ring-3 tracking structore for an allocation chunk ring-3 mapping.
*
* The primary tree (Core) uses the chunk id as key.
* The secondary tree (AgeCore) is used for ageing and uses ageing sequence number as key.
*/
typedef struct PGMCHUNKR3MAP
{
/** The key is the chunk id. */
AVLU32NODECORE Core;
/** The key is the ageing sequence number. */
AVLLU32NODECORE AgeCore;
/** The current age thingy. */
uint32_t iAge;
/** The current reference count. */
uint32_t volatile cRefs;
/** The current permanent reference count. */
uint32_t volatile cPermRefs;
/** The mapping address. */
void *pv;
} PGMCHUNKR3MAP;
/**
* Allocation chunk ring-3 mapping TLB entry.
*/
typedef struct PGMCHUNKR3MAPTLBE
{
/** The chunk id. */
uint32_t volatile idChunk;
#if HC_ARCH_BITS == 64
uint32_t u32Padding; /**< alignment padding. */
#endif
/** The chunk map. */
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
R3PTRTYPE(PPGMCHUNKR3MAP) volatile pChunk;
#else
R3R0PTRTYPE(PPGMCHUNKR3MAP) volatile pChunk;
#endif
} PGMCHUNKR3MAPTLBE;
/** Pointer to the an allocation chunk ring-3 mapping TLB entry. */
typedef PGMCHUNKR3MAPTLBE *PPGMCHUNKR3MAPTLBE;
/** The number of TLB entries in PGMCHUNKR3MAPTLB.
* @remark Must be a power of two value. */
#define PGM_CHUNKR3MAPTLB_ENTRIES 32
/**
* Allocation chunk ring-3 mapping TLB.
*
* @remarks We use a TLB to speed up lookups by avoiding walking the AVL.
* At first glance this might look kinda odd since AVL trees are
* supposed to give the most optimial lookup times of all trees
* due to their balancing. However, take a tree with 1023 nodes
* in it, that's 10 levels, meaning that most searches has to go
* down 9 levels before they find what they want. This isn't fast
* compared to a TLB hit. There is the factor of cache misses,
* and of course the problem with trees and branch prediction.
* This is why we use TLBs in front of most of the trees.
*
* @todo Generalize this TLB + AVL stuff, shouldn't be all that
* difficult when we switch to the new inlined AVL trees (from kStuff).
*/
typedef struct PGMCHUNKR3MAPTLB
{
/** The TLB entries. */
PGMCHUNKR3MAPTLBE aEntries[PGM_CHUNKR3MAPTLB_ENTRIES];
} PGMCHUNKR3MAPTLB;
/**
* Calculates the index of a guest page in the Ring-3 Chunk TLB.
* @returns Chunk TLB index.
* @param idChunk The Chunk ID.
*/
#define PGM_CHUNKR3MAPTLB_IDX(idChunk) ( (idChunk) & (PGM_CHUNKR3MAPTLB_ENTRIES - 1) )
/**
* Ring-3 guest page mapping TLB entry.
* @remarks used in ring-0 as well at the moment.
*/
typedef struct PGMPAGER3MAPTLBE
{
/** Address of the page. */
RTGCPHYS volatile GCPhys;
/** The guest page. */
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
R3PTRTYPE(PPGMPAGE) volatile pPage;
#else
R3R0PTRTYPE(PPGMPAGE) volatile pPage;
#endif
/** Pointer to the page mapping tracking structure, PGMCHUNKR3MAP. */
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
R3PTRTYPE(PPGMCHUNKR3MAP) volatile pMap;
#else
R3R0PTRTYPE(PPGMCHUNKR3MAP) volatile pMap;
#endif
/** The address */
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
R3PTRTYPE(void *) volatile pv;
#else
R3R0PTRTYPE(void *) volatile pv;
#endif
#if HC_ARCH_BITS == 32
uint32_t u32Padding; /**< alignment padding. */
#endif
} PGMPAGER3MAPTLBE;
/** Pointer to an entry in the HC physical TLB. */
typedef PGMPAGER3MAPTLBE *PPGMPAGER3MAPTLBE;
/** The number of entries in the ring-3 guest page mapping TLB.
* @remarks The value must be a power of two. */
#define PGM_PAGER3MAPTLB_ENTRIES 64
/**
* Ring-3 guest page mapping TLB.
* @remarks used in ring-0 as well at the moment.
*/
typedef struct PGMPAGER3MAPTLB
{
/** The TLB entries. */
PGMPAGER3MAPTLBE aEntries[PGM_PAGER3MAPTLB_ENTRIES];
} PGMPAGER3MAPTLB;
/** Pointer to the ring-3 guest page mapping TLB. */
typedef PGMPAGER3MAPTLB *PPGMPAGER3MAPTLB;
/**
* Calculates the index of the TLB entry for the specified guest page.
* @returns Physical TLB index.
* @param GCPhys The guest physical address.
*/
#define PGM_PAGER3MAPTLB_IDX(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGM_PAGER3MAPTLB_ENTRIES - 1) )
/**
* Mapping cache usage set entry.
*
* @remarks 16-bit ints was choosen as the set is not expected to be used beyond
* the dynamic ring-0 and (to some extent) raw-mode context mapping
* cache. If it's extended to include ring-3, well, then something will
* have be changed here...
*/
typedef struct PGMMAPSETENTRY
{
/** The mapping cache index. */
uint16_t iPage;
/** The number of references.
* The max is UINT16_MAX - 1. */
uint16_t cRefs;
#if HC_ARCH_BITS == 64
uint32_t alignment;
#endif
/** Pointer to the page. */
RTR0PTR pvPage;
/** The physical address for this entry. */
RTHCPHYS HCPhys;
} PGMMAPSETENTRY;
/** Pointer to a mapping cache usage set entry. */
typedef PGMMAPSETENTRY *PPGMMAPSETENTRY;
/**
* Mapping cache usage set.
*
* This is used in ring-0 and the raw-mode context to track dynamic mappings
* done during exits / traps. The set is
*/
typedef struct PGMMAPSET
{
/** The number of occupied entries.
* This is PGMMAPSET_CLOSED if the set is closed and we're not supposed to do
* dynamic mappings. */
uint32_t cEntries;
/** The start of the current subset.
* This is UINT32_MAX if no subset is currently open. */
uint32_t iSubset;
/** The index of the current CPU, only valid if the set is open. */
int32_t iCpu;
#if HC_ARCH_BITS == 64
uint32_t alignment;
#endif
/** The entries. */
PGMMAPSETENTRY aEntries[64];
/** HCPhys -> iEntry fast lookup table.
* Use PGMMAPSET_HASH for hashing.
* The entries may or may not be valid, check against cEntries. */
uint8_t aiHashTable[128];
} PGMMAPSET;
/** Pointer to the mapping cache set. */
typedef PGMMAPSET *PPGMMAPSET;
/** PGMMAPSET::cEntries value for a closed set. */
#define PGMMAPSET_CLOSED UINT32_C(0xdeadc0fe)
/** Hash function for aiHashTable. */
#define PGMMAPSET_HASH(HCPhys) (((HCPhys) >> PAGE_SHIFT) & 127)
/** The max fill size (strict builds). */
#define PGMMAPSET_MAX_FILL (64U * 80U / 100U)
/** @name Context neutrual page mapper TLB.
*
* Hoping to avoid some code and bug duplication parts of the GCxxx->CCPtr
* code is writting in a kind of context neutrual way. Time will show whether
* this actually makes sense or not...
*
* @todo this needs to be reconsidered and dropped/redone since the ring-0
* context ends up using a global mapping cache on some platforms
* (darwin).
*
* @{ */
/** @typedef PPGMPAGEMAPTLB
* The page mapper TLB pointer type for the current context. */
/** @typedef PPGMPAGEMAPTLB
* The page mapper TLB entry pointer type for the current context. */
/** @typedef PPGMPAGEMAPTLB
* The page mapper TLB entry pointer pointer type for the current context. */
/** @def PGM_PAGEMAPTLB_ENTRIES
* The number of TLB entries in the page mapper TLB for the current context. */
/** @def PGM_PAGEMAPTLB_IDX
* Calculate the TLB index for a guest physical address.
* @returns The TLB index.
* @param GCPhys The guest physical address. */
/** @typedef PPGMPAGEMAP
* Pointer to a page mapper unit for current context. */
/** @typedef PPPGMPAGEMAP
* Pointer to a page mapper unit pointer for current context. */
#ifdef IN_RC
// typedef PPGMPAGEGCMAPTLB PPGMPAGEMAPTLB;
// typedef PPGMPAGEGCMAPTLBE PPGMPAGEMAPTLBE;
// typedef PPGMPAGEGCMAPTLBE *PPPGMPAGEMAPTLBE;
# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGEGCMAPTLB_ENTRIES
# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGEGCMAPTLB_IDX(GCPhys)
typedef void * PPGMPAGEMAP;
typedef void ** PPPGMPAGEMAP;
//#elif IN_RING0
// typedef PPGMPAGER0MAPTLB PPGMPAGEMAPTLB;
// typedef PPGMPAGER0MAPTLBE PPGMPAGEMAPTLBE;
// typedef PPGMPAGER0MAPTLBE *PPPGMPAGEMAPTLBE;
//# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER0MAPTLB_ENTRIES
//# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER0MAPTLB_IDX(GCPhys)
// typedef PPGMCHUNKR0MAP PPGMPAGEMAP;
// typedef PPPGMCHUNKR0MAP PPPGMPAGEMAP;
#else
typedef PPGMPAGER3MAPTLB PPGMPAGEMAPTLB;
typedef PPGMPAGER3MAPTLBE PPGMPAGEMAPTLBE;
typedef PPGMPAGER3MAPTLBE *PPPGMPAGEMAPTLBE;
# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER3MAPTLB_ENTRIES
# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER3MAPTLB_IDX(GCPhys)
typedef PPGMCHUNKR3MAP PPGMPAGEMAP;
typedef PPPGMCHUNKR3MAP PPPGMPAGEMAP;
#endif
/** @} */
/** @name PGM Pool Indexes.
* Aka. the unique shadow page identifier.
* @{ */
/** NIL page pool IDX. */
#define NIL_PGMPOOL_IDX 0
/** The first normal index. */
#define PGMPOOL_IDX_FIRST_SPECIAL 1
/** Page directory (32-bit root). */
#define PGMPOOL_IDX_PD 1
/** Page Directory Pointer Table (PAE root). */
#define PGMPOOL_IDX_PDPT 2
/** AMD64 CR3 level index.*/
#define PGMPOOL_IDX_AMD64_CR3 3
/** Nested paging root.*/
#define PGMPOOL_IDX_NESTED_ROOT 4
/** The first normal index. */
#define PGMPOOL_IDX_FIRST 5
/** The last valid index. (inclusive, 14 bits) */
#define PGMPOOL_IDX_LAST 0x3fff
/** @} */
/** The NIL index for the parent chain. */
#define NIL_PGMPOOL_USER_INDEX ((uint16_t)0xffff)
#define NIL_PGMPOOL_PRESENT_INDEX ((uint16_t)0xffff)
/**
* Node in the chain linking a shadowed page to it's parent (user).
*/
#pragma pack(1)
typedef struct PGMPOOLUSER
{
/** The index to the next item in the chain. NIL_PGMPOOL_USER_INDEX is no next. */
uint16_t iNext;
/** The user page index. */
uint16_t iUser;
/** Index into the user table. */
uint32_t iUserTable;
} PGMPOOLUSER, *PPGMPOOLUSER;
typedef const PGMPOOLUSER *PCPGMPOOLUSER;
#pragma pack()
/** The NIL index for the phys ext chain. */
#define NIL_PGMPOOL_PHYSEXT_INDEX ((uint16_t)0xffff)
/**
* Node in the chain of physical cross reference extents.
* @todo Calling this an 'extent' is not quite right, find a better name.
*/
#pragma pack(1)
typedef struct PGMPOOLPHYSEXT
{
/** The index to the next item in the chain. NIL_PGMPOOL_PHYSEXT_INDEX is no next. */
uint16_t iNext;
/** The user page index. */
uint16_t aidx[3];
} PGMPOOLPHYSEXT, *PPGMPOOLPHYSEXT;
typedef const PGMPOOLPHYSEXT *PCPGMPOOLPHYSEXT;
#pragma pack()
/**
* The kind of page that's being shadowed.
*/
typedef enum PGMPOOLKIND
{
/** The virtual invalid 0 entry. */
PGMPOOLKIND_INVALID = 0,
/** The entry is free (=unused). */
PGMPOOLKIND_FREE,
/** Shw: 32-bit page table; Gst: no paging */
PGMPOOLKIND_32BIT_PT_FOR_PHYS,
/** Shw: 32-bit page table; Gst: 32-bit page table. */
PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT,
/** Shw: 32-bit page table; Gst: 4MB page. */
PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB,
/** Shw: PAE page table; Gst: no paging */
PGMPOOLKIND_PAE_PT_FOR_PHYS,
/** Shw: PAE page table; Gst: 32-bit page table. */
PGMPOOLKIND_PAE_PT_FOR_32BIT_PT,
/** Shw: PAE page table; Gst: Half of a 4MB page. */
PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB,
/** Shw: PAE page table; Gst: PAE page table. */
PGMPOOLKIND_PAE_PT_FOR_PAE_PT,
/** Shw: PAE page table; Gst: 2MB page. */
PGMPOOLKIND_PAE_PT_FOR_PAE_2MB,
/** Shw: 32-bit page directory. Gst: 32-bit page directory. */
PGMPOOLKIND_32BIT_PD,
/** Shw: 32-bit page directory. Gst: no paging. */
PGMPOOLKIND_32BIT_PD_PHYS,
/** Shw: PAE page directory 0; Gst: 32-bit page directory. */
PGMPOOLKIND_PAE_PD0_FOR_32BIT_PD,
/** Shw: PAE page directory 1; Gst: 32-bit page directory. */
PGMPOOLKIND_PAE_PD1_FOR_32BIT_PD,
/** Shw: PAE page directory 2; Gst: 32-bit page directory. */
PGMPOOLKIND_PAE_PD2_FOR_32BIT_PD,
/** Shw: PAE page directory 3; Gst: 32-bit page directory. */
PGMPOOLKIND_PAE_PD3_FOR_32BIT_PD,
/** Shw: PAE page directory; Gst: PAE page directory. */
PGMPOOLKIND_PAE_PD_FOR_PAE_PD,
/** Shw: PAE page directory; Gst: no paging. */
PGMPOOLKIND_PAE_PD_PHYS,
/** Shw: PAE page directory pointer table (legacy, 4 entries); Gst 32 bits paging. */
PGMPOOLKIND_PAE_PDPT_FOR_32BIT,
/** Shw: PAE page directory pointer table (legacy, 4 entries); Gst PAE PDPT. */
PGMPOOLKIND_PAE_PDPT,
/** Shw: PAE page directory pointer table (legacy, 4 entries); Gst: no paging. */
PGMPOOLKIND_PAE_PDPT_PHYS,
/** Shw: 64-bit page directory pointer table; Gst: 64-bit page directory pointer table. */
PGMPOOLKIND_64BIT_PDPT_FOR_64BIT_PDPT,
/** Shw: 64-bit page directory pointer table; Gst: no paging */
PGMPOOLKIND_64BIT_PDPT_FOR_PHYS,
/** Shw: 64-bit page directory table; Gst: 64-bit page directory table. */
PGMPOOLKIND_64BIT_PD_FOR_64BIT_PD,
/** Shw: 64-bit page directory table; Gst: no paging */
PGMPOOLKIND_64BIT_PD_FOR_PHYS, /* 22 */
/** Shw: 64-bit PML4; Gst: 64-bit PML4. */
PGMPOOLKIND_64BIT_PML4,
/** Shw: EPT page directory pointer table; Gst: no paging */
PGMPOOLKIND_EPT_PDPT_FOR_PHYS,
/** Shw: EPT page directory table; Gst: no paging */
PGMPOOLKIND_EPT_PD_FOR_PHYS,
/** Shw: EPT page table; Gst: no paging */
PGMPOOLKIND_EPT_PT_FOR_PHYS,
/** Shw: Root Nested paging table. */
PGMPOOLKIND_ROOT_NESTED,
/** The last valid entry. */
PGMPOOLKIND_LAST = PGMPOOLKIND_ROOT_NESTED
} PGMPOOLKIND;
/**
* The access attributes of the page; only applies to big pages.
*/
typedef enum
{
PGMPOOLACCESS_DONTCARE = 0,
PGMPOOLACCESS_USER_RW,
PGMPOOLACCESS_USER_R,
PGMPOOLACCESS_USER_RW_NX,
PGMPOOLACCESS_USER_R_NX,
PGMPOOLACCESS_SUPERVISOR_RW,
PGMPOOLACCESS_SUPERVISOR_R,
PGMPOOLACCESS_SUPERVISOR_RW_NX,
PGMPOOLACCESS_SUPERVISOR_R_NX
} PGMPOOLACCESS;
/**
* The tracking data for a page in the pool.
*/
typedef struct PGMPOOLPAGE
{
/** AVL node code with the (R3) physical address of this page. */
AVLOHCPHYSNODECORE Core;
/** Pointer to the R3 mapping of the page. */
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
R3PTRTYPE(void *) pvPageR3;
#else
R3R0PTRTYPE(void *) pvPageR3;
#endif
/** The guest physical address. */
#if HC_ARCH_BITS == 32 && GC_ARCH_BITS == 64
uint32_t Alignment0;
#endif
RTGCPHYS GCPhys;
/** Access handler statistics to determine whether the guest is (re)initializing a page table. */
RTGCPTR pvLastAccessHandlerRip;
RTGCPTR pvLastAccessHandlerFault;
uint64_t cLastAccessHandlerCount;
/** The kind of page we're shadowing. (This is really a PGMPOOLKIND enum.) */
uint8_t enmKind;
/** The subkind of page we're shadowing. (This is really a PGMPOOLACCESS enum.) */
uint8_t enmAccess;
/** The index of this page. */
uint16_t idx;
/** The next entry in the list this page currently resides in.
* It's either in the free list or in the GCPhys hash. */
uint16_t iNext;
#ifdef PGMPOOL_WITH_USER_TRACKING
/** Head of the user chain. NIL_PGMPOOL_USER_INDEX if not currently in use. */
uint16_t iUserHead;
/** The number of present entries. */
uint16_t cPresent;
/** The first entry in the table which is present. */
uint16_t iFirstPresent;
#endif
#ifdef PGMPOOL_WITH_MONITORING
/** The number of modifications to the monitored page. */
uint16_t cModifications;
/** The next modified page. NIL_PGMPOOL_IDX if tail. */
uint16_t iModifiedNext;
/** The previous modified page. NIL_PGMPOOL_IDX if head. */
uint16_t iModifiedPrev;
/** The next page sharing access handler. NIL_PGMPOOL_IDX if tail. */
uint16_t iMonitoredNext;
/** The previous page sharing access handler. NIL_PGMPOOL_IDX if head. */
uint16_t iMonitoredPrev;
#endif
#ifdef PGMPOOL_WITH_CACHE
/** The next page in the age list. */
uint16_t iAgeNext;
/** The previous page in the age list. */
uint16_t iAgePrev;
#endif /* PGMPOOL_WITH_CACHE */
/** Used to indicate that the page is zeroed. */
bool fZeroed;
/** Used to indicate that a PT has non-global entries. */
bool fSeenNonGlobal;
/** Used to indicate that we're monitoring writes to the guest page. */
bool fMonitored;
/** Used to indicate that the page is in the cache (e.g. in the GCPhys hash).
* (All pages are in the age list.) */
bool fCached;
/** This is used by the R3 access handlers when invoked by an async thread.
* It's a hack required because of REMR3NotifyHandlerPhysicalDeregister. */
bool volatile fReusedFlushPending;
/** Used to mark the page as dirty (write monitoring if temporarily off. */
bool fDirty;
/** Used to indicate that this page can't be flushed. Important for cr3 root pages or shadow pae pd pages). */
uint32_t cLocked;
uint32_t idxDirty;
RTGCPTR pvDirtyFault;
} PGMPOOLPAGE, *PPGMPOOLPAGE, **PPPGMPOOLPAGE;
/** Pointer to a const pool page. */
typedef PGMPOOLPAGE const *PCPGMPOOLPAGE;
#ifdef PGMPOOL_WITH_CACHE
/** The hash table size. */
# define PGMPOOL_HASH_SIZE 0x40
/** The hash function. */
# define PGMPOOL_HASH(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGMPOOL_HASH_SIZE - 1) )
#endif
/**
* The shadow page pool instance data.
*
* It's all one big allocation made at init time, except for the
* pages that is. The user nodes follows immediatly after the
* page structures.
*/
typedef struct PGMPOOL
{
/** The VM handle - R3 Ptr. */
PVMR3 pVMR3;
/** The VM handle - R0 Ptr. */
PVMR0 pVMR0;
/** The VM handle - RC Ptr. */
PVMRC pVMRC;
/** The max pool size. This includes the special IDs. */
uint16_t cMaxPages;
/** The current pool size. */
uint16_t cCurPages;
/** The head of the free page list. */
uint16_t iFreeHead;
/* Padding. */
uint16_t u16Padding;
#ifdef PGMPOOL_WITH_USER_TRACKING
/** Head of the chain of free user nodes. */
uint16_t iUserFreeHead;
/** The number of user nodes we've allocated. */
uint16_t cMaxUsers;
/** The number of present page table entries in the entire pool. */
uint32_t cPresent;
/** Pointer to the array of user nodes - RC pointer. */
RCPTRTYPE(PPGMPOOLUSER) paUsersRC;
/** Pointer to the array of user nodes - R3 pointer. */
R3PTRTYPE(PPGMPOOLUSER) paUsersR3;
/** Pointer to the array of user nodes - R0 pointer. */
R0PTRTYPE(PPGMPOOLUSER) paUsersR0;
#endif /* PGMPOOL_WITH_USER_TRACKING */
#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
/** Head of the chain of free phys ext nodes. */
uint16_t iPhysExtFreeHead;
/** The number of user nodes we've allocated. */
uint16_t cMaxPhysExts;
/** Pointer to the array of physical xref extent - RC pointer. */
RCPTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsRC;
/** Pointer to the array of physical xref extent nodes - R3 pointer. */
R3PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsR3;
/** Pointer to the array of physical xref extent nodes - R0 pointer. */
R0PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsR0;
#endif /* PGMPOOL_WITH_GCPHYS_TRACKING */
#ifdef PGMPOOL_WITH_CACHE
/** Hash table for GCPhys addresses. */
uint16_t aiHash[PGMPOOL_HASH_SIZE];
/** The head of the age list. */
uint16_t iAgeHead;
/** The tail of the age list. */
uint16_t iAgeTail;
/** Set if the cache is enabled. */
bool fCacheEnabled;
#endif /* PGMPOOL_WITH_CACHE */
#ifdef PGMPOOL_WITH_MONITORING
/** Head of the list of modified pages. */
uint16_t iModifiedHead;
/** The current number of modified pages. */
uint16_t cModifiedPages;
/** Access handler, RC. */
RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnAccessHandlerRC;
/** Access handler, R0. */
R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnAccessHandlerR0;
/** Access handler, R3. */
R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnAccessHandlerR3;
/** The access handler description (HC ptr). */
R3PTRTYPE(const char *) pszAccessHandler;
/* Next available slot. */
uint32_t idxFreeDirtyPage;
/* Number of active dirty pages. */
uint32_t cDirtyPages;
/* Array of current dirty pgm pool page indices. */
uint16_t aIdxDirtyPages[8];
uint64_t aDirtyPages[8][512];
#endif /* PGMPOOL_WITH_MONITORING */
/** The number of pages currently in use. */
uint16_t cUsedPages;
#ifdef VBOX_WITH_STATISTICS
/** The high water mark for cUsedPages. */
uint16_t cUsedPagesHigh;
uint32_t Alignment1; /**< Align the next member on a 64-bit boundrary. */
/** Profiling pgmPoolAlloc(). */
STAMPROFILEADV StatAlloc;
/** Profiling pgmPoolClearAll(). */
STAMPROFILE StatClearAll;
/** Profiling pgmPoolFlushAllInt(). */
STAMPROFILE StatFlushAllInt;
/** Profiling pgmPoolFlushPage(). */
STAMPROFILE StatFlushPage;
/** Profiling pgmPoolFree(). */
STAMPROFILE StatFree;
/** Counting explicit flushes by PGMPoolFlushPage(). */
STAMCOUNTER StatForceFlushPage;
/** Counting explicit flushes of dirty pages by PGMPoolFlushPage(). */
STAMCOUNTER StatForceFlushDirtyPage;
/** Counting flushes for reused pages. */
STAMCOUNTER StatForceFlushReused;
/** Profiling time spent zeroing pages. */
STAMPROFILE StatZeroPage;
# ifdef PGMPOOL_WITH_USER_TRACKING
/** Profiling of pgmPoolTrackDeref. */
STAMPROFILE StatTrackDeref;
/** Profiling pgmTrackFlushGCPhysPT. */
STAMPROFILE StatTrackFlushGCPhysPT;
/** Profiling pgmTrackFlushGCPhysPTs. */
STAMPROFILE StatTrackFlushGCPhysPTs;
/** Profiling pgmTrackFlushGCPhysPTsSlow. */
STAMPROFILE StatTrackFlushGCPhysPTsSlow;
/** Number of times we've been out of user records. */
STAMCOUNTER StatTrackFreeUpOneUser;
# endif
# ifdef PGMPOOL_WITH_GCPHYS_TRACKING
/** Profiling deref activity related tracking GC physical pages. */
STAMPROFILE StatTrackDerefGCPhys;
/** Number of linear searches for a HCPhys in the ram ranges. */
STAMCOUNTER StatTrackLinearRamSearches;
/** The number of failing pgmPoolTrackPhysExtAlloc calls. */
STAMCOUNTER StamTrackPhysExtAllocFailures;
# endif
# ifdef PGMPOOL_WITH_MONITORING
/** Profiling the RC/R0 access handler. */
STAMPROFILE StatMonitorRZ;
/** Times we've failed interpreting the instruction. */
STAMCOUNTER StatMonitorRZEmulateInstr;
/** Profiling the pgmPoolFlushPage calls made from the RC/R0 access handler. */
STAMPROFILE StatMonitorRZFlushPage;
/* Times we've detected a page table reinit. */
STAMCOUNTER StatMonitorRZFlushReinit;
/** Counting flushes for pages that are modified too often. */
STAMCOUNTER StatMonitorRZFlushModOverflow;
/** Times we've detected fork(). */
STAMCOUNTER StatMonitorRZFork;
/** Profiling the RC/R0 access we've handled (except REP STOSD). */
STAMPROFILE StatMonitorRZHandled;
/** Times we've failed interpreting a patch code instruction. */
STAMCOUNTER StatMonitorRZIntrFailPatch1;
/** Times we've failed interpreting a patch code instruction during flushing. */
STAMCOUNTER StatMonitorRZIntrFailPatch2;
/** The number of times we've seen rep prefixes we can't handle. */
STAMCOUNTER StatMonitorRZRepPrefix;
/** Profiling the REP STOSD cases we've handled. */
STAMPROFILE StatMonitorRZRepStosd;
/** Profiling the R3 access handler. */
STAMPROFILE StatMonitorR3;
/** Times we've failed interpreting the instruction. */
STAMCOUNTER StatMonitorR3EmulateInstr;
/** Profiling the pgmPoolFlushPage calls made from the R3 access handler. */
STAMPROFILE StatMonitorR3FlushPage;
/* Times we've detected a page table reinit. */
STAMCOUNTER StatMonitorR3FlushReinit;
/** Counting flushes for pages that are modified too often. */
STAMCOUNTER StatMonitorR3FlushModOverflow;
/** Times we've detected fork(). */
STAMCOUNTER StatMonitorR3Fork;
/** Profiling the R3 access we've handled (except REP STOSD). */
STAMPROFILE StatMonitorR3Handled;
/** The number of times we've seen rep prefixes we can't handle. */
STAMCOUNTER StatMonitorR3RepPrefix;
/** Profiling the REP STOSD cases we've handled. */
STAMPROFILE StatMonitorR3RepStosd;
/** The number of times we're called in an async thread an need to flush. */
STAMCOUNTER StatMonitorR3Async;
/** Times we've called pgmPoolResetDirtyPages (and there were dirty page). */
STAMCOUNTER StatResetDirtyPages;
/** Times we've called pgmPoolAddDirtyPage. */
STAMCOUNTER StatDirtyPage;
/** Times we've had to flush duplicates for dirty page management. */
STAMCOUNTER StatDirtyPageDupFlush;
/** The high wather mark for cModifiedPages. */
uint16_t cModifiedPagesHigh;
uint16_t Alignment2[3]; /**< Align the next member on a 64-bit boundrary. */
# endif
# ifdef PGMPOOL_WITH_CACHE
/** The number of cache hits. */
STAMCOUNTER StatCacheHits;
/** The number of cache misses. */
STAMCOUNTER StatCacheMisses;
/** The number of times we've got a conflict of 'kind' in the cache. */
STAMCOUNTER StatCacheKindMismatches;
/** Number of times we've been out of pages. */
STAMCOUNTER StatCacheFreeUpOne;
/** The number of cacheable allocations. */
STAMCOUNTER StatCacheCacheable;
/** The number of uncacheable allocations. */
STAMCOUNTER StatCacheUncacheable;
# endif
#elif HC_ARCH_BITS == 64
uint32_t Alignment3; /**< Align the next member on a 64-bit boundrary. */
#endif
/** The AVL tree for looking up a page by its HC physical address. */
AVLOHCPHYSTREE HCPhysTree;
uint32_t Alignment4; /**< Align the next member on a 64-bit boundrary. */
/** Array of pages. (cMaxPages in length)
* The Id is the index into thist array.
*/
PGMPOOLPAGE aPages[PGMPOOL_IDX_FIRST];
} PGMPOOL, *PPGMPOOL, **PPPGMPOOL;
/** @def PGMPOOL_PAGE_2_PTR
* Maps a pool page pool into the current context.
*
* @returns VBox status code.
* @param pVM The VM handle.
* @param pPage The pool page.
*
* @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
* small page window employeed by that function. Be careful.
* @remark There is no need to assert on the result.
*/
#if defined(IN_RC)
# define PGMPOOL_PAGE_2_PTR(pVM, pPage) pgmPoolMapPageInlined(&(pVM)->pgm.s, (pPage))
#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
# define PGMPOOL_PAGE_2_PTR(pVM, pPage) pgmPoolMapPageInlined(&(pVM)->pgm.s, (pPage))
#elif defined(VBOX_STRICT)
# define PGMPOOL_PAGE_2_PTR(pVM, pPage) pgmPoolMapPageStrict(pPage)
DECLINLINE(void *) pgmPoolMapPageStrict(PPGMPOOLPAGE pPage)
{
Assert(pPage && pPage->pvPageR3);
return pPage->pvPageR3;
}
#else
# define PGMPOOL_PAGE_2_PTR(pVM, pPage) ((pPage)->pvPageR3)
#endif
/** @def PGMPOOL_PAGE_2_PTR_BY_PGM
* Maps a pool page pool into the current context.
*
* @returns VBox status code.
* @param pPGM Pointer to the PGM instance data.
* @param pPage The pool page.
*
* @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
* small page window employeed by that function. Be careful.
* @remark There is no need to assert on the result.
*/
#if defined(IN_RC)
# define PGMPOOL_PAGE_2_PTR_BY_PGM(pPGM, pPage) pgmPoolMapPageInlined(pPGM, (pPage))
#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
# define PGMPOOL_PAGE_2_PTR_BY_PGM(pPGM, pPage) pgmPoolMapPageInlined(pPGM, (pPage))
#else
# define PGMPOOL_PAGE_2_PTR_BY_PGM(pPGM, pPage) PGMPOOL_PAGE_2_PTR(PGM2VM(pPGM), pPage)
#endif
/** @def PGMPOOL_PAGE_2_PTR_BY_PGMCPU
* Maps a pool page pool into the current context.
*
* @returns VBox status code.
* @param pPGM Pointer to the PGMCPU instance data.
* @param pPage The pool page.
*
* @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
* small page window employeed by that function. Be careful.
* @remark There is no need to assert on the result.
*/
#if defined(IN_RC)
# define PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPage) pgmPoolMapPageInlined(PGMCPU2PGM(pPGM), (pPage))
#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
# define PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPage) pgmPoolMapPageInlined(PGMCPU2PGM(pPGM), (pPage))
#else
# define PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPage) PGMPOOL_PAGE_2_PTR(PGMCPU2VM(pPGM), pPage)
#endif
/** @name Per guest page tracking data.
* This is currently as a 16-bit word in the PGMPAGE structure, the idea though
* is to use more bits for it and split it up later on. But for now we'll play
* safe and change as little as possible.
*
* The 16-bit word has two parts:
*
* The first 14-bit forms the @a idx field. It is either the index of a page in
* the shadow page pool, or and index into the extent list.
*
* The 2 topmost bits makes up the @a cRefs field, which counts the number of
* shadow page pool references to the page. If cRefs equals
* PGMPOOL_CREFS_PHYSEXT, then the @a idx field is an indext into the extent
* (misnomer) table and not the shadow page pool.
*
* See PGM_PAGE_GET_TRACKING and PGM_PAGE_SET_TRACKING for how to get and set
* the 16-bit word.
*
* @{ */
/** The shift count for getting to the cRefs part. */
#define PGMPOOL_TD_CREFS_SHIFT 14
/** The mask applied after shifting the tracking data down by
* PGMPOOL_TD_CREFS_SHIFT. */
#define PGMPOOL_TD_CREFS_MASK 0x3
/** The cRef value used to indiciate that the idx is the head of a
* physical cross reference list. */
#define PGMPOOL_TD_CREFS_PHYSEXT PGMPOOL_TD_CREFS_MASK
/** The shift used to get idx. */
#define PGMPOOL_TD_IDX_SHIFT 0
/** The mask applied to the idx after shifting down by PGMPOOL_TD_IDX_SHIFT. */
#define PGMPOOL_TD_IDX_MASK 0x3fff
/** The idx value when we're out of of PGMPOOLPHYSEXT entries or/and there are
* simply too many mappings of this page. */
#define PGMPOOL_TD_IDX_OVERFLOWED PGMPOOL_TD_IDX_MASK
/** @def PGMPOOL_TD_MAKE
* Makes a 16-bit tracking data word.
*
* @returns tracking data.
* @param cRefs The @a cRefs field. Must be within bounds!
* @param idx The @a idx field. Must also be within bounds! */
#define PGMPOOL_TD_MAKE(cRefs, idx) ( ((cRefs) << PGMPOOL_TD_CREFS_SHIFT) | (idx) )
/** @def PGMPOOL_TD_GET_CREFS
* Get the @a cRefs field from a tracking data word.
*
* @returns The @a cRefs field
* @param u16 The tracking data word. */
#define PGMPOOL_TD_GET_CREFS(u16) ( ((u16) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK )
/** @def PGMPOOL_TD_GET_IDX
* Get the @a idx field from a tracking data word.
*
* @returns The @a idx field
* @param u16 The tracking data word. */
#define PGMPOOL_TD_GET_IDX(u16) ( ((u16) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK )
/** @} */
/**
* Trees are using self relative offsets as pointers.
* So, all its data, including the root pointer, must be in the heap for HC and GC
* to have the same layout.
*/
typedef struct PGMTREES
{
/** Physical access handlers (AVL range+offsetptr tree). */
AVLROGCPHYSTREE PhysHandlers;
/** Virtual access handlers (AVL range + GC ptr tree). */
AVLROGCPTRTREE VirtHandlers;
/** Virtual access handlers (Phys range AVL range + offsetptr tree). */
AVLROGCPHYSTREE PhysToVirtHandlers;
/** Virtual access handlers for the hypervisor (AVL range + GC ptr tree). */
AVLROGCPTRTREE HyperVirtHandlers;
} PGMTREES;
/** Pointer to PGM trees. */
typedef PGMTREES *PPGMTREES;
/** @name Paging mode macros
* @{ */
#ifdef IN_RC
# define PGM_CTX(a,b) a##RC##b
# define PGM_CTX_STR(a,b) a "GC" b
# define PGM_CTX_DECL(type) VMMRCDECL(type)
#else
# ifdef IN_RING3
# define PGM_CTX(a,b) a##R3##b
# define PGM_CTX_STR(a,b) a "R3" b
# define PGM_CTX_DECL(type) DECLCALLBACK(type)
# else
# define PGM_CTX(a,b) a##R0##b
# define PGM_CTX_STR(a,b) a "R0" b
# define PGM_CTX_DECL(type) VMMDECL(type)
# endif
#endif
#define PGM_GST_NAME_REAL(name) PGM_CTX(pgm,GstReal##name)
#define PGM_GST_NAME_RC_REAL_STR(name) "pgmRCGstReal" #name
#define PGM_GST_NAME_R0_REAL_STR(name) "pgmR0GstReal" #name
#define PGM_GST_NAME_PROT(name) PGM_CTX(pgm,GstProt##name)
#define PGM_GST_NAME_RC_PROT_STR(name) "pgmRCGstProt" #name
#define PGM_GST_NAME_R0_PROT_STR(name) "pgmR0GstProt" #name
#define PGM_GST_NAME_32BIT(name) PGM_CTX(pgm,Gst32Bit##name)
#define PGM_GST_NAME_RC_32BIT_STR(name) "pgmRCGst32Bit" #name
#define PGM_GST_NAME_R0_32BIT_STR(name) "pgmR0Gst32Bit" #name
#define PGM_GST_NAME_PAE(name) PGM_CTX(pgm,GstPAE##name)
#define PGM_GST_NAME_RC_PAE_STR(name) "pgmRCGstPAE" #name
#define PGM_GST_NAME_R0_PAE_STR(name) "pgmR0GstPAE" #name
#define PGM_GST_NAME_AMD64(name) PGM_CTX(pgm,GstAMD64##name)
#define PGM_GST_NAME_RC_AMD64_STR(name) "pgmRCGstAMD64" #name
#define PGM_GST_NAME_R0_AMD64_STR(name) "pgmR0GstAMD64" #name
#define PGM_GST_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Gst##name))
#define PGM_GST_DECL(type, name) PGM_CTX_DECL(type) PGM_GST_NAME(name)
#define PGM_SHW_NAME_32BIT(name) PGM_CTX(pgm,Shw32Bit##name)
#define PGM_SHW_NAME_RC_32BIT_STR(name) "pgmRCShw32Bit" #name
#define PGM_SHW_NAME_R0_32BIT_STR(name) "pgmR0Shw32Bit" #name
#define PGM_SHW_NAME_PAE(name) PGM_CTX(pgm,ShwPAE##name)
#define PGM_SHW_NAME_RC_PAE_STR(name) "pgmRCShwPAE" #name
#define PGM_SHW_NAME_R0_PAE_STR(name) "pgmR0ShwPAE" #name
#define PGM_SHW_NAME_AMD64(name) PGM_CTX(pgm,ShwAMD64##name)
#define PGM_SHW_NAME_RC_AMD64_STR(name) "pgmRCShwAMD64" #name
#define PGM_SHW_NAME_R0_AMD64_STR(name) "pgmR0ShwAMD64" #name
#define PGM_SHW_NAME_NESTED(name) PGM_CTX(pgm,ShwNested##name)
#define PGM_SHW_NAME_RC_NESTED_STR(name) "pgmRCShwNested" #name
#define PGM_SHW_NAME_R0_NESTED_STR(name) "pgmR0ShwNested" #name
#define PGM_SHW_NAME_EPT(name) PGM_CTX(pgm,ShwEPT##name)
#define PGM_SHW_NAME_RC_EPT_STR(name) "pgmRCShwEPT" #name
#define PGM_SHW_NAME_R0_EPT_STR(name) "pgmR0ShwEPT" #name
#define PGM_SHW_DECL(type, name) PGM_CTX_DECL(type) PGM_SHW_NAME(name)
#define PGM_SHW_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Shw##name))
/* Shw_Gst */
#define PGM_BTH_NAME_32BIT_REAL(name) PGM_CTX(pgm,Bth32BitReal##name)
#define PGM_BTH_NAME_32BIT_PROT(name) PGM_CTX(pgm,Bth32BitProt##name)
#define PGM_BTH_NAME_32BIT_32BIT(name) PGM_CTX(pgm,Bth32Bit32Bit##name)
#define PGM_BTH_NAME_PAE_REAL(name) PGM_CTX(pgm,BthPAEReal##name)
#define PGM_BTH_NAME_PAE_PROT(name) PGM_CTX(pgm,BthPAEProt##name)
#define PGM_BTH_NAME_PAE_32BIT(name) PGM_CTX(pgm,BthPAE32Bit##name)
#define PGM_BTH_NAME_PAE_PAE(name) PGM_CTX(pgm,BthPAEPAE##name)
#define PGM_BTH_NAME_AMD64_PROT(name) PGM_CTX(pgm,BthAMD64Prot##name)
#define PGM_BTH_NAME_AMD64_AMD64(name) PGM_CTX(pgm,BthAMD64AMD64##name)
#define PGM_BTH_NAME_NESTED_REAL(name) PGM_CTX(pgm,BthNestedReal##name)
#define PGM_BTH_NAME_NESTED_PROT(name) PGM_CTX(pgm,BthNestedProt##name)
#define PGM_BTH_NAME_NESTED_32BIT(name) PGM_CTX(pgm,BthNested32Bit##name)
#define PGM_BTH_NAME_NESTED_PAE(name) PGM_CTX(pgm,BthNestedPAE##name)
#define PGM_BTH_NAME_NESTED_AMD64(name) PGM_CTX(pgm,BthNestedAMD64##name)
#define PGM_BTH_NAME_EPT_REAL(name) PGM_CTX(pgm,BthEPTReal##name)
#define PGM_BTH_NAME_EPT_PROT(name) PGM_CTX(pgm,BthEPTProt##name)
#define PGM_BTH_NAME_EPT_32BIT(name) PGM_CTX(pgm,BthEPT32Bit##name)
#define PGM_BTH_NAME_EPT_PAE(name) PGM_CTX(pgm,BthEPTPAE##name)
#define PGM_BTH_NAME_EPT_AMD64(name) PGM_CTX(pgm,BthEPTAMD64##name)
#define PGM_BTH_NAME_RC_32BIT_REAL_STR(name) "pgmRCBth32BitReal" #name
#define PGM_BTH_NAME_RC_32BIT_PROT_STR(name) "pgmRCBth32BitProt" #name
#define PGM_BTH_NAME_RC_32BIT_32BIT_STR(name) "pgmRCBth32Bit32Bit" #name
#define PGM_BTH_NAME_RC_PAE_REAL_STR(name) "pgmRCBthPAEReal" #name
#define PGM_BTH_NAME_RC_PAE_PROT_STR(name) "pgmRCBthPAEProt" #name
#define PGM_BTH_NAME_RC_PAE_32BIT_STR(name) "pgmRCBthPAE32Bit" #name
#define PGM_BTH_NAME_RC_PAE_PAE_STR(name) "pgmRCBthPAEPAE" #name
#define PGM_BTH_NAME_RC_AMD64_AMD64_STR(name) "pgmRCBthAMD64AMD64" #name
#define PGM_BTH_NAME_RC_NESTED_REAL_STR(name) "pgmRCBthNestedReal" #name
#define PGM_BTH_NAME_RC_NESTED_PROT_STR(name) "pgmRCBthNestedProt" #name
#define PGM_BTH_NAME_RC_NESTED_32BIT_STR(name) "pgmRCBthNested32Bit" #name
#define PGM_BTH_NAME_RC_NESTED_PAE_STR(name) "pgmRCBthNestedPAE" #name
#define PGM_BTH_NAME_RC_NESTED_AMD64_STR(name) "pgmRCBthNestedAMD64" #name
#define PGM_BTH_NAME_RC_EPT_REAL_STR(name) "pgmRCBthEPTReal" #name
#define PGM_BTH_NAME_RC_EPT_PROT_STR(name) "pgmRCBthEPTProt" #name
#define PGM_BTH_NAME_RC_EPT_32BIT_STR(name) "pgmRCBthEPT32Bit" #name
#define PGM_BTH_NAME_RC_EPT_PAE_STR(name) "pgmRCBthEPTPAE" #name
#define PGM_BTH_NAME_RC_EPT_AMD64_STR(name) "pgmRCBthEPTAMD64" #name
#define PGM_BTH_NAME_R0_32BIT_REAL_STR(name) "pgmR0Bth32BitReal" #name
#define PGM_BTH_NAME_R0_32BIT_PROT_STR(name) "pgmR0Bth32BitProt" #name
#define PGM_BTH_NAME_R0_32BIT_32BIT_STR(name) "pgmR0Bth32Bit32Bit" #name
#define PGM_BTH_NAME_R0_PAE_REAL_STR(name) "pgmR0BthPAEReal" #name
#define PGM_BTH_NAME_R0_PAE_PROT_STR(name) "pgmR0BthPAEProt" #name
#define PGM_BTH_NAME_R0_PAE_32BIT_STR(name) "pgmR0BthPAE32Bit" #name
#define PGM_BTH_NAME_R0_PAE_PAE_STR(name) "pgmR0BthPAEPAE" #name
#define PGM_BTH_NAME_R0_AMD64_PROT_STR(name) "pgmR0BthAMD64Prot" #name
#define PGM_BTH_NAME_R0_AMD64_AMD64_STR(name) "pgmR0BthAMD64AMD64" #name
#define PGM_BTH_NAME_R0_NESTED_REAL_STR(name) "pgmR0BthNestedReal" #name
#define PGM_BTH_NAME_R0_NESTED_PROT_STR(name) "pgmR0BthNestedProt" #name
#define PGM_BTH_NAME_R0_NESTED_32BIT_STR(name) "pgmR0BthNested32Bit" #name
#define PGM_BTH_NAME_R0_NESTED_PAE_STR(name) "pgmR0BthNestedPAE" #name
#define PGM_BTH_NAME_R0_NESTED_AMD64_STR(name) "pgmR0BthNestedAMD64" #name
#define PGM_BTH_NAME_R0_EPT_REAL_STR(name) "pgmR0BthEPTReal" #name
#define PGM_BTH_NAME_R0_EPT_PROT_STR(name) "pgmR0BthEPTProt" #name
#define PGM_BTH_NAME_R0_EPT_32BIT_STR(name) "pgmR0BthEPT32Bit" #name
#define PGM_BTH_NAME_R0_EPT_PAE_STR(name) "pgmR0BthEPTPAE" #name
#define PGM_BTH_NAME_R0_EPT_AMD64_STR(name) "pgmR0BthEPTAMD64" #name
#define PGM_BTH_DECL(type, name) PGM_CTX_DECL(type) PGM_BTH_NAME(name)
#define PGM_BTH_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Bth##name))
/** @} */
/**
* Data for each paging mode.
*/
typedef struct PGMMODEDATA
{
/** The guest mode type. */
uint32_t uGstType;
/** The shadow mode type. */
uint32_t uShwType;
/** @name Function pointers for Shadow paging.
* @{
*/
DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVMCPU pVCpu));
DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLRCCALLBACKMEMBER(int, pfnRCShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
DECLRCCALLBACKMEMBER(int, pfnRCShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
/** @} */
/** @name Function pointers for Guest paging.
* @{
*/
DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVMCPU pVCpu));
DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
DECLRCCALLBACKMEMBER(int, pfnRCGstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
DECLRCCALLBACKMEMBER(int, pfnRCGstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLRCCALLBACKMEMBER(int, pfnRCGstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
/** @} */
/** @name Function pointers for Both Shadow and Guest paging.
* @{
*/
DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
/* no pfnR3BthTrap0eHandler */
DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
DECLR3CALLBACKMEMBER(int, pfnR3BthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
#ifdef VBOX_STRICT
DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
#endif
DECLR3CALLBACKMEMBER(int, pfnR3BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
DECLR3CALLBACKMEMBER(int, pfnR3BthUnmapCR3,(PVMCPU pVCpu));
DECLRCCALLBACKMEMBER(int, pfnRCBthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
DECLRCCALLBACKMEMBER(int, pfnRCBthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLRCCALLBACKMEMBER(int, pfnRCBthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
DECLRCCALLBACKMEMBER(int, pfnRCBthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
DECLRCCALLBACKMEMBER(int, pfnRCBthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLRCCALLBACKMEMBER(int, pfnRCBthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
#ifdef VBOX_STRICT
DECLRCCALLBACKMEMBER(unsigned, pfnRCBthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
#endif
DECLRCCALLBACKMEMBER(int, pfnRCBthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
DECLRCCALLBACKMEMBER(int, pfnRCBthUnmapCR3,(PVMCPU pVCpu));
DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
DECLR0CALLBACKMEMBER(int, pfnR0BthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
#ifdef VBOX_STRICT
DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
#endif
DECLR0CALLBACKMEMBER(int, pfnR0BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
DECLR0CALLBACKMEMBER(int, pfnR0BthUnmapCR3,(PVMCPU pVCpu));
/** @} */
} PGMMODEDATA, *PPGMMODEDATA;
/**
* Converts a PGM pointer into a VM pointer.
* @returns Pointer to the VM structure the PGM is part of.
* @param pPGM Pointer to PGM instance data.
*/
#define PGM2VM(pPGM) ( (PVM)((char*)pPGM - pPGM->offVM) )
/**
* PGM Data (part of VM)
*/
typedef struct PGM
{
/** Offset to the VM structure. */
RTINT offVM;
/** Offset of the PGMCPU structure relative to VMCPU. */
RTINT offVCpuPGM;
/** @cfgm{RamPreAlloc, boolean, false}
* Indicates whether the base RAM should all be allocated before starting
* the VM (default), or if it should be allocated when first written to.
*/
bool fRamPreAlloc;
/** Alignment padding. */
bool afAlignment0[11];
/*
* This will be redefined at least two more times before we're done, I'm sure.
* The current code is only to get on with the coding.
* - 2004-06-10: initial version, bird.
* - 2004-07-02: 1st time, bird.
* - 2004-10-18: 2nd time, bird.
* - 2005-07-xx: 3rd time, bird.
*/
/** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
RCPTRTYPE(PX86PTE) paDynPageMap32BitPTEsGC;
/** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
RCPTRTYPE(PX86PTEPAE) paDynPageMapPaePTEsGC;
/** The host paging mode. (This is what SUPLib reports.) */
SUPPAGINGMODE enmHostMode;
/** 4 MB page mask; 32 or 36 bits depending on PSE-36 (identical for all VCPUs) */
RTGCPHYS GCPhys4MBPSEMask;
/** Pointer to the list of RAM ranges (Phys GC -> Phys HC conversion) - for R3.
* This is sorted by physical address and contains no overlapping ranges. */
R3PTRTYPE(PPGMRAMRANGE) pRamRangesR3;
/** R0 pointer corresponding to PGM::pRamRangesR3. */
R0PTRTYPE(PPGMRAMRANGE) pRamRangesR0;
/** RC pointer corresponding to PGM::pRamRangesR3. */
RCPTRTYPE(PPGMRAMRANGE) pRamRangesRC;
RTRCPTR alignment4; /**< structure alignment. */
/** Pointer to the list of ROM ranges - for R3.
* This is sorted by physical address and contains no overlapping ranges. */
R3PTRTYPE(PPGMROMRANGE) pRomRangesR3;
/** R0 pointer corresponding to PGM::pRomRangesR3. */
R0PTRTYPE(PPGMROMRANGE) pRomRangesR0;
/** RC pointer corresponding to PGM::pRomRangesR3. */
RCPTRTYPE(PPGMROMRANGE) pRomRangesRC;
/** Alignment padding. */
RTRCPTR GCPtrPadding2;
/** Pointer to the list of MMIO2 ranges - for R3.
* Registration order. */
R3PTRTYPE(PPGMMMIO2RANGE) pMmio2RangesR3;
/** PGM offset based trees - R3 Ptr. */
R3PTRTYPE(PPGMTREES) pTreesR3;
/** PGM offset based trees - R0 Ptr. */
R0PTRTYPE(PPGMTREES) pTreesR0;
/** PGM offset based trees - RC Ptr. */
RCPTRTYPE(PPGMTREES) pTreesRC;
/** Linked list of GC mappings - for RC.
* The list is sorted ascending on address.
*/
RCPTRTYPE(PPGMMAPPING) pMappingsRC;
/** Linked list of GC mappings - for HC.
* The list is sorted ascending on address.
*/
R3PTRTYPE(PPGMMAPPING) pMappingsR3;
/** Linked list of GC mappings - for R0.
* The list is sorted ascending on address.
*/
R0PTRTYPE(PPGMMAPPING) pMappingsR0;
/** Pointer to the 5 page CR3 content mapping.
* The first page is always the CR3 (in some form) while the 4 other pages
* are used of the PDs in PAE mode. */
RTGCPTR GCPtrCR3Mapping;
#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
uint32_t u32Alignment;
#endif
/** Indicates that PGMR3FinalizeMappings has been called and that further
* PGMR3MapIntermediate calls will be rejected. */
bool fFinalizedMappings;
/** If set no conflict checks are required. (boolean) */
bool fMappingsFixed;
/** If set, then no mappings are put into the shadow page table. (boolean) */
bool fDisableMappings;
/** Size of fixed mapping */
uint32_t cbMappingFixed;
/** Base address (GC) of fixed mapping */
RTGCPTR GCPtrMappingFixed;
/** The address of the previous RAM range mapping. */
RTGCPTR GCPtrPrevRamRangeMapping;
/** @name Intermediate Context
* @{ */
/** Pointer to the intermediate page directory - Normal. */
R3PTRTYPE(PX86PD) pInterPD;
/** Pointer to the intermedate page tables - Normal.
* There are two page tables, one for the identity mapping and one for
* the host context mapping (of the core code). */
R3PTRTYPE(PX86PT) apInterPTs[2];
/** Pointer to the intermedate page tables - PAE. */
R3PTRTYPE(PX86PTPAE) apInterPaePTs[2];
/** Pointer to the intermedate page directory - PAE. */
R3PTRTYPE(PX86PDPAE) apInterPaePDs[4];
/** Pointer to the intermedate page directory - PAE. */
R3PTRTYPE(PX86PDPT) pInterPaePDPT;
/** Pointer to the intermedate page-map level 4 - AMD64. */
R3PTRTYPE(PX86PML4) pInterPaePML4;
/** Pointer to the intermedate page directory - AMD64. */
R3PTRTYPE(PX86PDPT) pInterPaePDPT64;
/** The Physical Address (HC) of the intermediate Page Directory - Normal. */
RTHCPHYS HCPhysInterPD;
/** The Physical Address (HC) of the intermediate Page Directory Pointer Table - PAE. */
RTHCPHYS HCPhysInterPaePDPT;
/** The Physical Address (HC) of the intermediate Page Map Level 4 table - AMD64. */
RTHCPHYS HCPhysInterPaePML4;
/** @} */
/** Base address of the dynamic page mapping area.
* The array is MM_HYPER_DYNAMIC_SIZE bytes big.
*/
RCPTRTYPE(uint8_t *) pbDynPageMapBaseGC;
/** The index of the last entry used in the dynamic page mapping area. */
RTUINT iDynPageMapLast;
/** Cache containing the last entries in the dynamic page mapping area.
* The cache size is covering half of the mapping area. */
RTHCPHYS aHCPhysDynPageMapCache[MM_HYPER_DYNAMIC_SIZE >> (PAGE_SHIFT + 1)];
/** Keep a lock counter for the full (!) mapping area. */
uint32_t aLockedDynPageMapCache[MM_HYPER_DYNAMIC_SIZE >> (PAGE_SHIFT)];
/** The address of the ring-0 mapping cache if we're making use of it. */
RTR0PTR pvR0DynMapUsed;
/** PGM critical section.
* This protects the physical & virtual access handlers, ram ranges,
* and the page flag updating (some of it anyway).
*/
PDMCRITSECT CritSect;
/** Pointer to SHW+GST mode data (function pointers).
* The index into this table is made up from */
R3PTRTYPE(PPGMMODEDATA) paModeData;
/** Shadow Page Pool - R3 Ptr. */
R3PTRTYPE(PPGMPOOL) pPoolR3;
/** Shadow Page Pool - R0 Ptr. */
R0PTRTYPE(PPGMPOOL) pPoolR0;
/** Shadow Page Pool - RC Ptr. */
RCPTRTYPE(PPGMPOOL) pPoolRC;
/** We're not in a state which permits writes to guest memory.
* (Only used in strict builds.) */
bool fNoMorePhysWrites;
/**
* Data associated with managing the ring-3 mappings of the allocation chunks.
*/
struct
{
/** The chunk tree, ordered by chunk id. */
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
R3PTRTYPE(PAVLU32NODECORE) pTree;
#else
R3R0PTRTYPE(PAVLU32NODECORE) pTree;
#endif
/** The chunk mapping TLB. */
PGMCHUNKR3MAPTLB Tlb;
/** The number of mapped chunks. */
uint32_t c;
/** The maximum number of mapped chunks.
* @cfgm PGM/MaxRing3Chunks */
uint32_t cMax;
/** The chunk age tree, ordered by ageing sequence number. */
R3PTRTYPE(PAVLLU32NODECORE) pAgeTree;
/** The current time. */
uint32_t iNow;
/** Number of pgmR3PhysChunkFindUnmapCandidate calls left to the next ageing. */
uint32_t AgeingCountdown;
} ChunkR3Map;
/**
* The page mapping TLB for ring-3 and (for the time being) ring-0.
*/
PGMPAGER3MAPTLB PhysTlbHC;
/** @name The zero page.
* @{ */
/** The host physical address of the zero page. */
RTHCPHYS HCPhysZeroPg;
/** The ring-3 mapping of the zero page. */
RTR3PTR pvZeroPgR3;
/** The ring-0 mapping of the zero page. */
RTR0PTR pvZeroPgR0;
/** The GC mapping of the zero page. */
RTGCPTR pvZeroPgRC;
#if GC_ARCH_BITS != 32
uint32_t u32ZeroAlignment; /**< Alignment padding. */
#endif
/** @}*/
/** The number of handy pages. */
uint32_t cHandyPages;
/**
* Array of handy pages.
*
* This array is used in a two way communication between pgmPhysAllocPage
* and GMMR0AllocateHandyPages, with PGMR3PhysAllocateHandyPages serving as
* an intermediary.
*
* The size of this array is important, see pgmPhysEnsureHandyPage for details.
* (The current size of 32 pages, means 128 KB of handy memory.)
*/
GMMPAGEDESC aHandyPages[PGM_HANDY_PAGES];
/** @name Error injection.
* @{ */
/** Inject handy page allocation errors pretending we're completely out of
* memory. */
bool volatile fErrInjHandyPages;
/** Padding. */
bool afReserved[7];
/** @} */
/** @name Release Statistics
* @{ */
uint32_t cAllPages; /**< The total number of pages. (Should be Private + Shared + Zero.) */
uint32_t cPrivatePages; /**< The number of private pages. */
uint32_t cSharedPages; /**< The number of shared pages. */
uint32_t cZeroPages; /**< The number of zero backed pages. */
/** The number of times we were forced to change the hypervisor region location. */
STAMCOUNTER cRelocations;
/** @} */
#ifdef VBOX_WITH_STATISTICS /** @todo move this chunk to the heap. */
/* R3 only: */
STAMCOUNTER StatR3DetectedConflicts; /**< R3: Number of times PGMR3MapHasConflicts() detected a conflict. */
STAMPROFILE StatR3ResolveConflict; /**< R3: pgmR3SyncPTResolveConflict() profiling (includes the entire relocation). */
STAMCOUNTER StatRZChunkR3MapTlbHits; /**< RC/R0: Ring-3/0 chunk mapper TLB hits. */
STAMCOUNTER StatRZChunkR3MapTlbMisses; /**< RC/R0: Ring-3/0 chunk mapper TLB misses. */
STAMCOUNTER StatRZPageMapTlbHits; /**< RC/R0: Ring-3/0 page mapper TLB hits. */
STAMCOUNTER StatRZPageMapTlbMisses; /**< RC/R0: Ring-3/0 page mapper TLB misses. */
STAMCOUNTER StatR3ChunkR3MapTlbHits; /**< R3: Ring-3/0 chunk mapper TLB hits. */
STAMCOUNTER StatR3ChunkR3MapTlbMisses; /**< R3: Ring-3/0 chunk mapper TLB misses. */
STAMCOUNTER StatR3PageMapTlbHits; /**< R3: Ring-3/0 page mapper TLB hits. */
STAMCOUNTER StatR3PageMapTlbMisses; /**< R3: Ring-3/0 page mapper TLB misses. */
STAMPROFILE StatRZSyncCR3HandlerVirtualReset; /**< RC/R0: Profiling of the virtual handler resets. */
STAMPROFILE StatRZSyncCR3HandlerVirtualUpdate; /**< RC/R0: Profiling of the virtual handler updates. */
STAMPROFILE StatR3SyncCR3HandlerVirtualReset; /**< R3: Profiling of the virtual handler resets. */
STAMPROFILE StatR3SyncCR3HandlerVirtualUpdate; /**< R3: Profiling of the virtual handler updates. */
STAMCOUNTER StatR3PhysHandlerReset; /**< R3: The number of times PGMHandlerPhysicalReset is called. */
STAMCOUNTER StatRZPhysHandlerReset; /**< RC/R0: The number of times PGMHandlerPhysicalReset is called. */
STAMPROFILE StatRZVirtHandlerSearchByPhys; /**< RC/R0: Profiling of pgmHandlerVirtualFindByPhysAddr. */
STAMPROFILE StatR3VirtHandlerSearchByPhys; /**< R3: Profiling of pgmHandlerVirtualFindByPhysAddr. */
STAMCOUNTER StatRZPageReplaceShared; /**< RC/R0: Times a shared page has been replaced by a private one. */
STAMCOUNTER StatRZPageReplaceZero; /**< RC/R0: Times the zero page has been replaced by a private one. */
/// @todo STAMCOUNTER StatRZPageHandyAllocs; /**< RC/R0: The number of times we've executed GMMR3AllocateHandyPages. */
STAMCOUNTER StatR3PageReplaceShared; /**< R3: Times a shared page has been replaced by a private one. */
STAMCOUNTER StatR3PageReplaceZero; /**< R3: Times the zero page has been replaced by a private one. */
/// @todo STAMCOUNTER StatR3PageHandyAllocs; /**< R3: The number of times we've executed GMMR3AllocateHandyPages. */
/* RC only: */
STAMCOUNTER StatRCDynMapCacheMisses; /**< RC: The number of dynamic page mapping cache misses */
STAMCOUNTER StatRCDynMapCacheHits; /**< RC: The number of dynamic page mapping cache hits */
STAMCOUNTER StatRCInvlPgConflict; /**< RC: Number of times PGMInvalidatePage() detected a mapping conflict. */
STAMCOUNTER StatRCInvlPgSyncMonCR3; /**< RC: Number of times PGMInvalidatePage() ran into PGM_SYNC_MONITOR_CR3. */
STAMCOUNTER StatRZPhysRead;
STAMCOUNTER StatRZPhysReadBytes;
STAMCOUNTER StatRZPhysWrite;
STAMCOUNTER StatRZPhysWriteBytes;
STAMCOUNTER StatR3PhysRead;
STAMCOUNTER StatR3PhysReadBytes;
STAMCOUNTER StatR3PhysWrite;
STAMCOUNTER StatR3PhysWriteBytes;
STAMCOUNTER StatRCPhysRead;
STAMCOUNTER StatRCPhysReadBytes;
STAMCOUNTER StatRCPhysWrite;
STAMCOUNTER StatRCPhysWriteBytes;
STAMCOUNTER StatRZPhysSimpleRead;
STAMCOUNTER StatRZPhysSimpleReadBytes;
STAMCOUNTER StatRZPhysSimpleWrite;
STAMCOUNTER StatRZPhysSimpleWriteBytes;
STAMCOUNTER StatR3PhysSimpleRead;
STAMCOUNTER StatR3PhysSimpleReadBytes;
STAMCOUNTER StatR3PhysSimpleWrite;
STAMCOUNTER StatR3PhysSimpleWriteBytes;
STAMCOUNTER StatRCPhysSimpleRead;
STAMCOUNTER StatRCPhysSimpleReadBytes;
STAMCOUNTER StatRCPhysSimpleWrite;
STAMCOUNTER StatRCPhysSimpleWriteBytes;
# ifdef PGMPOOL_WITH_GCPHYS_TRACKING
STAMCOUNTER StatTrackVirgin; /**< The number of first time shadowings. */
STAMCOUNTER StatTrackAliased; /**< The number of times switching to cRef2, i.e. the page is being shadowed by two PTs. */
STAMCOUNTER StatTrackAliasedMany; /**< The number of times we're tracking using cRef2. */
STAMCOUNTER StatTrackAliasedLots; /**< The number of times we're hitting pages which has overflowed cRef2. */
STAMCOUNTER StatTrackOverflows; /**< The number of times the extent list grows to long. */
STAMPROFILE StatTrackDeref; /**< Profiling of SyncPageWorkerTrackDeref (expensive). */
# endif
#endif
} PGM;
/** Pointer to the PGM instance data. */
typedef PGM *PPGM;
/**
* Converts a PGMCPU pointer into a VM pointer.
* @returns Pointer to the VM structure the PGM is part of.
* @param pPGM Pointer to PGMCPU instance data.
*/
#define PGMCPU2VM(pPGM) ( (PVM)((char*)pPGM - pPGM->offVM) )
/**
* Converts a PGMCPU pointer into a PGM pointer.
* @returns Pointer to the VM structure the PGM is part of.
* @param pPGM Pointer to PGMCPU instance data.
*/
#define PGMCPU2PGM(pPGMCpu) ( (PPGM)((char*)pPGMCpu - pPGMCpu->offPGM) )
/**
* PGMCPU Data (part of VMCPU).
*/
typedef struct PGMCPU
{
/** Offset to the VM structure. */
RTINT offVM;
/** Offset to the VMCPU structure. */
RTINT offVCpu;
/** Offset of the PGM structure relative to VMCPU. */
RTINT offPGM;
RTINT uPadding0; /**< structure size alignment. */
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
/** Automatically tracked physical memory mapping set.
* Ring-0 and strict raw-mode builds. */
PGMMAPSET AutoSet;
#endif
/** A20 gate mask.
* Our current approach to A20 emulation is to let REM do it and don't bother
* anywhere else. The interesting Guests will be operating with it enabled anyway.
* But whould need arrise, we'll subject physical addresses to this mask. */
RTGCPHYS GCPhysA20Mask;
/** A20 gate state - boolean! */
bool fA20Enabled;
/** What needs syncing (PGM_SYNC_*).
* This is used to queue operations for PGMSyncCR3, PGMInvalidatePage,
* PGMFlushTLB, and PGMR3Load. */
RTUINT fSyncFlags;
/** The shadow paging mode. */
PGMMODE enmShadowMode;
/** The guest paging mode. */
PGMMODE enmGuestMode;
/** The current physical address representing in the guest CR3 register. */
RTGCPHYS GCPhysCR3;
/** @name 32-bit Guest Paging.
* @{ */
/** The guest's page directory, R3 pointer. */
R3PTRTYPE(PX86PD) pGst32BitPdR3;
#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
/** The guest's page directory, R0 pointer. */
R0PTRTYPE(PX86PD) pGst32BitPdR0;
#endif
/** The guest's page directory, static RC mapping. */
RCPTRTYPE(PX86PD) pGst32BitPdRC;
/** @} */
/** @name PAE Guest Paging.
* @{ */
/** The guest's page directory pointer table, static RC mapping. */
RCPTRTYPE(PX86PDPT) pGstPaePdptRC;
/** The guest's page directory pointer table, R3 pointer. */
R3PTRTYPE(PX86PDPT) pGstPaePdptR3;
#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
/** The guest's page directory pointer table, R0 pointer. */
R0PTRTYPE(PX86PDPT) pGstPaePdptR0;
#endif
/** The guest's page directories, R3 pointers.
* These are individual pointers and don't have to be adjecent.
* These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
R3PTRTYPE(PX86PDPAE) apGstPaePDsR3[4];
/** The guest's page directories, R0 pointers.
* Same restrictions as apGstPaePDsR3. */
#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
R0PTRTYPE(PX86PDPAE) apGstPaePDsR0[4];
#endif
/** The guest's page directories, static GC mapping.
* Unlike the R3/R0 array the first entry can be accessed as a 2048 entry PD.
* These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
RCPTRTYPE(PX86PDPAE) apGstPaePDsRC[4];
/** The physical addresses of the guest page directories (PAE) pointed to by apGstPagePDsHC/GC. */
RTGCPHYS aGCPhysGstPaePDs[4];
/** The physical addresses of the monitored guest page directories (PAE). */
RTGCPHYS aGCPhysGstPaePDsMonitored[4];
/** @} */
/** @name AMD64 Guest Paging.
* @{ */
/** The guest's page directory pointer table, R3 pointer. */
R3PTRTYPE(PX86PML4) pGstAmd64Pml4R3;
#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
/** The guest's page directory pointer table, R0 pointer. */
R0PTRTYPE(PX86PML4) pGstAmd64Pml4R0;
#endif
/** @} */
/** Pointer to the page of the current active CR3 - R3 Ptr. */
R3PTRTYPE(PPGMPOOLPAGE) pShwPageCR3R3;
/** Pointer to the page of the current active CR3 - R0 Ptr. */
R0PTRTYPE(PPGMPOOLPAGE) pShwPageCR3R0;
/** Pointer to the page of the current active CR3 - RC Ptr. */
RCPTRTYPE(PPGMPOOLPAGE) pShwPageCR3RC;
/* The shadow page pool index of the user table as specified during allocation; useful for freeing root pages */
uint32_t iShwUser;
/* The index into the user table (shadowed) as specified during allocation; useful for freeing root pages. */
uint32_t iShwUserTable;
# if HC_ARCH_BITS == 64
RTRCPTR alignment6; /**< structure size alignment. */
# endif
/** @} */
/** @name Function pointers for Shadow paging.
* @{
*/
DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVMCPU pVCpu));
DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLRCCALLBACKMEMBER(int, pfnRCShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
DECLRCCALLBACKMEMBER(int, pfnRCShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
/** @} */
/** @name Function pointers for Guest paging.
* @{
*/
DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVMCPU pVCpu));
DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
DECLRCCALLBACKMEMBER(int, pfnRCGstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
DECLRCCALLBACKMEMBER(int, pfnRCGstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLRCCALLBACKMEMBER(int, pfnRCGstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
#if HC_ARCH_BITS == 64
RTRCPTR alignment3; /**< structure size alignment. */
#endif
DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
/** @} */
/** @name Function pointers for Both Shadow and Guest paging.
* @{
*/
DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
/* no pfnR3BthTrap0eHandler */
DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
DECLR3CALLBACKMEMBER(int, pfnR3BthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
DECLR3CALLBACKMEMBER(int, pfnR3BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
DECLR3CALLBACKMEMBER(int, pfnR3BthUnmapCR3,(PVMCPU pVCpu));
DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
DECLR0CALLBACKMEMBER(int, pfnR0BthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
DECLR0CALLBACKMEMBER(int, pfnR0BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
DECLR0CALLBACKMEMBER(int, pfnR0BthUnmapCR3,(PVMCPU pVCpu));
DECLRCCALLBACKMEMBER(int, pfnRCBthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
DECLRCCALLBACKMEMBER(int, pfnRCBthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLRCCALLBACKMEMBER(int, pfnRCBthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
DECLRCCALLBACKMEMBER(int, pfnRCBthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
DECLRCCALLBACKMEMBER(int, pfnRCBthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
DECLRCCALLBACKMEMBER(int, pfnRCBthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
DECLRCCALLBACKMEMBER(unsigned, pfnRCBthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
DECLRCCALLBACKMEMBER(int, pfnRCBthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
DECLRCCALLBACKMEMBER(int, pfnRCBthUnmapCR3,(PVMCPU pVCpu));
#if HC_ARCH_BITS == 64
RTRCPTR alignment2; /**< structure size alignment. */
#endif
/** @} */
/** For saving stack space, the disassembler state is allocated here instead of
* on the stack.
* @note The DISCPUSTATE structure is not R3/R0/RZ clean! */
union
{
/** The disassembler scratch space. */
DISCPUSTATE DisState;
/** Padding. */
uint8_t abDisStatePadding[DISCPUSTATE_PADDING_SIZE];
};
/* Count the number of pgm pool access handler calls. */
uint64_t cPoolAccessHandler;
/** @name Release Statistics
* @{ */
/** The number of times the guest has switched mode since last reset or statistics reset. */
STAMCOUNTER cGuestModeChanges;
/** @} */
#ifdef VBOX_WITH_STATISTICS /** @todo move this chunk to the heap. */
/** @name Statistics
* @{ */
/** RC: Which statistic this \#PF should be attributed to. */
RCPTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionRC;
RTRCPTR padding0;
/** R0: Which statistic this \#PF should be attributed to. */
R0PTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionR0;
RTR0PTR padding1;
/* Common */
STAMCOUNTER StatSyncPtPD[X86_PG_ENTRIES]; /**< SyncPT - PD distribution. */
STAMCOUNTER StatSyncPagePD[X86_PG_ENTRIES]; /**< SyncPage - PD distribution. */
/* R0 only: */
STAMCOUNTER StatR0DynMapMigrateInvlPg; /**< R0: invlpg in PGMDynMapMigrateAutoSet. */
STAMPROFILE StatR0DynMapGCPageInl; /**< R0: Calls to pgmR0DynMapGCPageInlined. */
STAMCOUNTER StatR0DynMapGCPageInlHits; /**< R0: Hash table lookup hits. */
STAMCOUNTER StatR0DynMapGCPageInlMisses; /**< R0: Misses that falls back to code common with PGMDynMapHCPage. */
STAMCOUNTER StatR0DynMapGCPageInlRamHits; /**< R0: 1st ram range hits. */
STAMCOUNTER StatR0DynMapGCPageInlRamMisses; /**< R0: 1st ram range misses, takes slow path. */
STAMPROFILE StatR0DynMapHCPageInl; /**< R0: Calls to pgmR0DynMapHCPageInlined. */
STAMCOUNTER StatR0DynMapHCPageInlHits; /**< R0: Hash table lookup hits. */
STAMCOUNTER StatR0DynMapHCPageInlMisses; /**< R0: Misses that falls back to code common with PGMDynMapHCPage. */
STAMPROFILE StatR0DynMapHCPage; /**< R0: Calls to PGMDynMapHCPage. */
STAMCOUNTER StatR0DynMapSetOptimize; /**< R0: Calls to pgmDynMapOptimizeAutoSet. */
STAMCOUNTER StatR0DynMapSetSearchFlushes; /**< R0: Set search restorting to subset flushes. */
STAMCOUNTER StatR0DynMapSetSearchHits; /**< R0: Set search hits. */
STAMCOUNTER StatR0DynMapSetSearchMisses; /**< R0: Set search misses. */
STAMCOUNTER StatR0DynMapPage; /**< R0: Calls to pgmR0DynMapPage. */
STAMCOUNTER StatR0DynMapPageHits0; /**< R0: Hits at iPage+0. */
STAMCOUNTER StatR0DynMapPageHits1; /**< R0: Hits at iPage+1. */
STAMCOUNTER StatR0DynMapPageHits2; /**< R0: Hits at iPage+2. */
STAMCOUNTER StatR0DynMapPageInvlPg; /**< R0: invlpg. */
STAMCOUNTER StatR0DynMapPageSlow; /**< R0: Calls to pgmR0DynMapPageSlow. */
STAMCOUNTER StatR0DynMapPageSlowLoopHits; /**< R0: Hits in the pgmR0DynMapPageSlow search loop. */
STAMCOUNTER StatR0DynMapPageSlowLoopMisses; /**< R0: Misses in the pgmR0DynMapPageSlow search loop. */
//STAMCOUNTER StatR0DynMapPageSlowLostHits; /**< R0: Lost hits. */
STAMCOUNTER StatR0DynMapSubsets; /**< R0: Times PGMDynMapPushAutoSubset was called. */
STAMCOUNTER StatR0DynMapPopFlushes; /**< R0: Times PGMDynMapPopAutoSubset flushes the subset. */
STAMCOUNTER aStatR0DynMapSetSize[11]; /**< R0: Set size distribution. */
/* RZ only: */
STAMPROFILE StatRZTrap0e; /**< RC/R0: PGMTrap0eHandler() profiling. */
STAMPROFILE StatRZTrap0eTimeCheckPageFault;
STAMPROFILE StatRZTrap0eTimeSyncPT;
STAMPROFILE StatRZTrap0eTimeMapping;
STAMPROFILE StatRZTrap0eTimeOutOfSync;
STAMPROFILE StatRZTrap0eTimeHandlers;
STAMPROFILE StatRZTrap0eTime2CSAM; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is CSAM. */
STAMPROFILE StatRZTrap0eTime2DirtyAndAccessed; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation. */
STAMPROFILE StatRZTrap0eTime2GuestTrap; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a guest trap. */
STAMPROFILE StatRZTrap0eTime2HndPhys; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a physical handler. */
STAMPROFILE StatRZTrap0eTime2HndVirt; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a virtual handler. */
STAMPROFILE StatRZTrap0eTime2HndUnhandled; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page. */
STAMPROFILE StatRZTrap0eTime2Misc; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is not known. */
STAMPROFILE StatRZTrap0eTime2OutOfSync; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync page. */
STAMPROFILE StatRZTrap0eTime2OutOfSyncHndPhys; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page. */
STAMPROFILE StatRZTrap0eTime2OutOfSyncHndVirt; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page. */
STAMPROFILE StatRZTrap0eTime2OutOfSyncHndObs; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an obsolete handler page. */
STAMPROFILE StatRZTrap0eTime2SyncPT; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT. */
STAMCOUNTER StatRZTrap0eConflicts; /**< RC/R0: The number of times \#PF was caused by an undetected conflict. */
STAMCOUNTER StatRZTrap0eHandlersMapping; /**< RC/R0: Number of traps due to access handlers in mappings. */
STAMCOUNTER StatRZTrap0eHandlersOutOfSync; /**< RC/R0: Number of out-of-sync handled pages. */
STAMCOUNTER StatRZTrap0eHandlersPhysical; /**< RC/R0: Number of traps due to physical access handlers. */
STAMCOUNTER StatRZTrap0eHandlersVirtual; /**< RC/R0: Number of traps due to virtual access handlers. */
STAMCOUNTER StatRZTrap0eHandlersVirtualByPhys; /**< RC/R0: Number of traps due to virtual access handlers found by physical address. */
STAMCOUNTER StatRZTrap0eHandlersVirtualUnmarked;/**< RC/R0: Number of traps due to virtual access handlers found by virtual address (without proper physical flags). */
STAMCOUNTER StatRZTrap0eHandlersUnhandled; /**< RC/R0: Number of traps due to access outside range of monitored page(s). */
STAMCOUNTER StatRZTrap0eHandlersInvalid; /**< RC/R0: Number of traps due to access to invalid physical memory. */
STAMCOUNTER StatRZTrap0eUSNotPresentRead; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eUSNotPresentWrite; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eUSWrite; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eUSReserved; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eUSNXE; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eUSRead; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eSVNotPresentRead; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eSVNotPresentWrite; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eSVWrite; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eSVReserved; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eSNXE; /**< RC/R0: #PF err kind */
STAMCOUNTER StatRZTrap0eGuestPF; /**< RC/R0: Real guest #PFs. */
STAMCOUNTER StatRZTrap0eGuestPFUnh; /**< RC/R0: Real guest #PF ending up at the end of the #PF code. */
STAMCOUNTER StatRZTrap0eGuestPFMapping; /**< RC/R0: Real guest #PF to HMA or other mapping. */
STAMCOUNTER StatRZTrap0eWPEmulInRZ; /**< RC/R0: WP=0 virtualization trap, handled. */
STAMCOUNTER StatRZTrap0eWPEmulToR3; /**< RC/R0: WP=0 virtualization trap, chickened out. */
STAMCOUNTER StatRZTrap0ePD[X86_PG_ENTRIES]; /**< RC/R0: PD distribution of the #PFs. */
STAMCOUNTER StatRZGuestCR3WriteHandled; /**< RC/R0: The number of times WriteHandlerCR3() was successfully called. */
STAMCOUNTER StatRZGuestCR3WriteUnhandled; /**< RC/R0: The number of times WriteHandlerCR3() was called and we had to fall back to the recompiler. */
STAMCOUNTER StatRZGuestCR3WriteConflict; /**< RC/R0: The number of times WriteHandlerCR3() was called and a conflict was detected. */
STAMCOUNTER StatRZGuestROMWriteHandled; /**< RC/R0: The number of times pgmPhysRomWriteHandler() was successfully called. */
STAMCOUNTER StatRZGuestROMWriteUnhandled; /**< RC/R0: The number of times pgmPhysRomWriteHandler() was called and we had to fall back to the recompiler */
/* HC - R3 and (maybe) R0: */
/* RZ & R3: */
STAMPROFILE StatRZSyncCR3; /**< RC/R0: PGMSyncCR3() profiling. */
STAMPROFILE StatRZSyncCR3Handlers; /**< RC/R0: Profiling of the PGMSyncCR3() update handler section. */
STAMCOUNTER StatRZSyncCR3Global; /**< RC/R0: The number of global CR3 syncs. */
STAMCOUNTER StatRZSyncCR3NotGlobal; /**< RC/R0: The number of non-global CR3 syncs. */
STAMCOUNTER StatRZSyncCR3DstCacheHit; /**< RC/R0: The number of times we got some kind of cache hit on a page table. */
STAMCOUNTER StatRZSyncCR3DstFreed; /**< RC/R0: The number of times we've had to free a shadow entry. */
STAMCOUNTER StatRZSyncCR3DstFreedSrcNP; /**< RC/R0: The number of times we've had to free a shadow entry for which the source entry was not present. */
STAMCOUNTER StatRZSyncCR3DstNotPresent; /**< RC/R0: The number of times we've encountered a not present shadow entry for a present guest entry. */
STAMCOUNTER StatRZSyncCR3DstSkippedGlobalPD; /**< RC/R0: The number of times a global page directory wasn't flushed. */
STAMCOUNTER StatRZSyncCR3DstSkippedGlobalPT; /**< RC/R0: The number of times a page table with only global entries wasn't flushed. */
STAMPROFILE StatRZSyncPT; /**< RC/R0: PGMSyncPT() profiling. */
STAMCOUNTER StatRZSyncPTFailed; /**< RC/R0: The number of times PGMSyncPT() failed. */
STAMCOUNTER StatRZSyncPT4K; /**< RC/R0: Number of 4KB syncs. */
STAMCOUNTER StatRZSyncPT4M; /**< RC/R0: Number of 4MB syncs. */
STAMCOUNTER StatRZSyncPagePDNAs; /**< RC/R0: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
STAMCOUNTER StatRZSyncPagePDOutOfSync; /**< RC/R0: The number of time we've encountered an out-of-sync PD in SyncPage. */
STAMCOUNTER StatRZAccessedPage; /**< RC/R0: The number of pages marked not present for accessed bit emulation. */
STAMPROFILE StatRZDirtyBitTracking; /**< RC/R0: Profiling the dirty bit tracking in CheckPageFault().. */
STAMCOUNTER StatRZDirtyPage; /**< RC/R0: The number of pages marked read-only for dirty bit tracking. */
STAMCOUNTER StatRZDirtyPageBig; /**< RC/R0: The number of pages marked read-only for dirty bit tracking. */
STAMCOUNTER StatRZDirtyPageSkipped; /**< RC/R0: The number of pages already dirty or readonly. */
STAMCOUNTER StatRZDirtyPageTrap; /**< RC/R0: The number of traps generated for dirty bit tracking. */
STAMCOUNTER StatRZDirtyPageStale; /**< RC/R0: The number of traps generated for dirty bit tracking. (stale tlb entries) */
STAMCOUNTER StatRZDirtyTrackRealPF; /**< RC/R0: The number of real pages faults during dirty bit tracking. */
STAMCOUNTER StatRZDirtiedPage; /**< RC/R0: The number of pages marked dirty because of write accesses. */
STAMCOUNTER StatRZPageAlreadyDirty; /**< RC/R0: The number of pages already marked dirty because of write accesses. */
STAMPROFILE StatRZInvalidatePage; /**< RC/R0: PGMInvalidatePage() profiling. */
STAMCOUNTER StatRZInvalidatePage4KBPages; /**< RC/R0: The number of times PGMInvalidatePage() was called for a 4KB page. */
STAMCOUNTER StatRZInvalidatePage4MBPages; /**< RC/R0: The number of times PGMInvalidatePage() was called for a 4MB page. */
STAMCOUNTER StatRZInvalidatePage4MBPagesSkip; /**< RC/R0: The number of times PGMInvalidatePage() skipped a 4MB page. */
STAMCOUNTER StatRZInvalidatePagePDMappings; /**< RC/R0: The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict). */
STAMCOUNTER StatRZInvalidatePagePDNAs; /**< RC/R0: The number of times PGMInvalidatePage() was called for a not accessed page directory. */
STAMCOUNTER StatRZInvalidatePagePDNPs; /**< RC/R0: The number of times PGMInvalidatePage() was called for a not present page directory. */
STAMCOUNTER StatRZInvalidatePagePDOutOfSync; /**< RC/R0: The number of times PGMInvalidatePage() was called for an out of sync page directory. */
STAMCOUNTER StatRZInvalidatePageSkipped; /**< RC/R0: The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
STAMCOUNTER StatRZPageOutOfSyncUser; /**< RC/R0: The number of times user page is out of sync was detected in #PF or VerifyAccessSyncPage. */
STAMCOUNTER StatRZPageOutOfSyncSupervisor; /**< RC/R0: The number of times supervisor page is out of sync was detected in in #PF or VerifyAccessSyncPage. */
STAMPROFILE StatRZPrefetch; /**< RC/R0: PGMPrefetchPage. */
STAMPROFILE StatRZFlushTLB; /**< RC/R0: Profiling of the PGMFlushTLB() body. */
STAMCOUNTER StatRZFlushTLBNewCR3; /**< RC/R0: The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) */
STAMCOUNTER StatRZFlushTLBNewCR3Global; /**< RC/R0: The number of times PGMFlushTLB was called with a new CR3, global. (switch) */
STAMCOUNTER StatRZFlushTLBSameCR3; /**< RC/R0: The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) */
STAMCOUNTER StatRZFlushTLBSameCR3Global; /**< RC/R0: The number of times PGMFlushTLB was called with the same CR3, global. (flush) */
STAMPROFILE StatRZGstModifyPage; /**< RC/R0: Profiling of the PGMGstModifyPage() body */
STAMPROFILE StatR3SyncCR3; /**< R3: PGMSyncCR3() profiling. */
STAMPROFILE StatR3SyncCR3Handlers; /**< R3: Profiling of the PGMSyncCR3() update handler section. */
STAMCOUNTER StatR3SyncCR3Global; /**< R3: The number of global CR3 syncs. */
STAMCOUNTER StatR3SyncCR3NotGlobal; /**< R3: The number of non-global CR3 syncs. */
STAMCOUNTER StatR3SyncCR3DstFreed; /**< R3: The number of times we've had to free a shadow entry. */
STAMCOUNTER StatR3SyncCR3DstFreedSrcNP; /**< R3: The number of times we've had to free a shadow entry for which the source entry was not present. */
STAMCOUNTER StatR3SyncCR3DstNotPresent; /**< R3: The number of times we've encountered a not present shadow entry for a present guest entry. */
STAMCOUNTER StatR3SyncCR3DstSkippedGlobalPD; /**< R3: The number of times a global page directory wasn't flushed. */
STAMCOUNTER StatR3SyncCR3DstSkippedGlobalPT; /**< R3: The number of times a page table with only global entries wasn't flushed. */
STAMCOUNTER StatR3SyncCR3DstCacheHit; /**< R3: The number of times we got some kind of cache hit on a page table. */
STAMPROFILE StatR3SyncPT; /**< R3: PGMSyncPT() profiling. */
STAMCOUNTER StatR3SyncPTFailed; /**< R3: The number of times PGMSyncPT() failed. */
STAMCOUNTER StatR3SyncPT4K; /**< R3: Number of 4KB syncs. */
STAMCOUNTER StatR3SyncPT4M; /**< R3: Number of 4MB syncs. */
STAMCOUNTER StatR3SyncPagePDNAs; /**< R3: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
STAMCOUNTER StatR3SyncPagePDOutOfSync; /**< R3: The number of time we've encountered an out-of-sync PD in SyncPage. */
STAMCOUNTER StatR3AccessedPage; /**< R3: The number of pages marked not present for accessed bit emulation. */
STAMPROFILE StatR3DirtyBitTracking; /**< R3: Profiling the dirty bit tracking in CheckPageFault(). */
STAMCOUNTER StatR3DirtyPage; /**< R3: The number of pages marked read-only for dirty bit tracking. */
STAMCOUNTER StatR3DirtyPageBig; /**< R3: The number of pages marked read-only for dirty bit tracking. */
STAMCOUNTER StatR3DirtyPageSkipped; /**< R3: The number of pages already dirty or readonly. */
STAMCOUNTER StatR3DirtyPageTrap; /**< R3: The number of traps generated for dirty bit tracking. */
STAMCOUNTER StatR3DirtyTrackRealPF; /**< R3: The number of real pages faults during dirty bit tracking. */
STAMCOUNTER StatR3DirtiedPage; /**< R3: The number of pages marked dirty because of write accesses. */
STAMCOUNTER StatR3PageAlreadyDirty; /**< R3: The number of pages already marked dirty because of write accesses. */
STAMPROFILE StatR3InvalidatePage; /**< R3: PGMInvalidatePage() profiling. */
STAMCOUNTER StatR3InvalidatePage4KBPages; /**< R3: The number of times PGMInvalidatePage() was called for a 4KB page. */
STAMCOUNTER StatR3InvalidatePage4MBPages; /**< R3: The number of times PGMInvalidatePage() was called for a 4MB page. */
STAMCOUNTER StatR3InvalidatePage4MBPagesSkip; /**< R3: The number of times PGMInvalidatePage() skipped a 4MB page. */
STAMCOUNTER StatR3InvalidatePagePDNAs; /**< R3: The number of times PGMInvalidatePage() was called for a not accessed page directory. */
STAMCOUNTER StatR3InvalidatePagePDNPs; /**< R3: The number of times PGMInvalidatePage() was called for a not present page directory. */
STAMCOUNTER StatR3InvalidatePagePDMappings; /**< R3: The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict). */
STAMCOUNTER StatR3InvalidatePagePDOutOfSync; /**< R3: The number of times PGMInvalidatePage() was called for an out of sync page directory. */
STAMCOUNTER StatR3InvalidatePageSkipped; /**< R3: The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
STAMCOUNTER StatR3PageOutOfSyncUser; /**< R3: The number of times user page is out of sync was detected in #PF or VerifyAccessSyncPage. */
STAMCOUNTER StatR3PageOutOfSyncSupervisor; /**< R3: The number of times supervisor page is out of sync was detected in in #PF or VerifyAccessSyncPage. */
STAMPROFILE StatR3Prefetch; /**< R3: PGMPrefetchPage. */
STAMPROFILE StatR3FlushTLB; /**< R3: Profiling of the PGMFlushTLB() body. */
STAMCOUNTER StatR3FlushTLBNewCR3; /**< R3: The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) */
STAMCOUNTER StatR3FlushTLBNewCR3Global; /**< R3: The number of times PGMFlushTLB was called with a new CR3, global. (switch) */
STAMCOUNTER StatR3FlushTLBSameCR3; /**< R3: The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) */
STAMCOUNTER StatR3FlushTLBSameCR3Global; /**< R3: The number of times PGMFlushTLB was called with the same CR3, global. (flush) */
STAMPROFILE StatR3GstModifyPage; /**< R3: Profiling of the PGMGstModifyPage() body */
/** @} */
#endif /* VBOX_WITH_STATISTICS */
} PGMCPU;
/** Pointer to the per-cpu PGM data. */
typedef PGMCPU *PPGMCPU;
/** @name PGM::fSyncFlags Flags
* @{
*/
/** Updates the virtual access handler state bit in PGMPAGE. */
#define PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL RT_BIT(0)
/** Always sync CR3. */
#define PGM_SYNC_ALWAYS RT_BIT(1)
/** Check monitoring on next CR3 (re)load and invalidate page.
* @todo This is obsolete now. Remove after 2.2.0 is branched off. */
#define PGM_SYNC_MONITOR_CR3 RT_BIT(2)
/** Check guest mapping in SyncCR3. */
#define PGM_SYNC_MAP_CR3 RT_BIT(3)
/** Clear the page pool (a light weight flush). */
#define PGM_SYNC_CLEAR_PGM_POOL_BIT 8
#define PGM_SYNC_CLEAR_PGM_POOL RT_BIT(PGM_SYNC_CLEAR_PGM_POOL_BIT)
/** @} */
RT_C_DECLS_BEGIN
int pgmLock(PVM pVM);
void pgmUnlock(PVM pVM);
int pgmR3SyncPTResolveConflict(PVM pVM, PPGMMAPPING pMapping, PX86PD pPDSrc, RTGCPTR GCPtrOldMapping);
int pgmR3SyncPTResolveConflictPAE(PVM pVM, PPGMMAPPING pMapping, RTGCPTR GCPtrOldMapping);
PPGMMAPPING pgmGetMapping(PVM pVM, RTGCPTR GCPtr);
void pgmR3MapRelocate(PVM pVM, PPGMMAPPING pMapping, RTGCPTR GCPtrOldMapping, RTGCPTR GCPtrNewMapping);
DECLCALLBACK(void) pgmR3MapInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
void pgmR3HandlerPhysicalUpdateAll(PVM pVM);
bool pgmHandlerPhysicalIsAll(PVM pVM, RTGCPHYS GCPhys);
void pgmHandlerPhysicalResetAliasedPage(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhysPage);
int pgmHandlerVirtualFindByPhysAddr(PVM pVM, RTGCPHYS GCPhys, PPGMVIRTHANDLER *ppVirt, unsigned *piPage);
DECLCALLBACK(int) pgmHandlerVirtualResetOne(PAVLROGCPTRNODECORE pNode, void *pvUser);
#if defined(VBOX_STRICT) || defined(LOG_ENABLED)
void pgmHandlerVirtualDumpPhysPages(PVM pVM);
#else
# define pgmHandlerVirtualDumpPhysPages(a) do { } while (0)
#endif
DECLCALLBACK(void) pgmR3InfoHandlers(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
int pgmPhysAllocPage(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
int pgmPhysPageLoadIntoTlb(PPGM pPGM, RTGCPHYS GCPhys);
int pgmPhysPageLoadIntoTlbWithPage(PPGM pPGM, PPGMPAGE pPage, RTGCPHYS GCPhys);
int pgmPhysPageMakeWritable(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
int pgmPhysPageMakeWritableUnlocked(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
int pgmPhysPageMap(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPPGMPAGEMAP ppMap, void **ppv);
int pgmPhysPageMapByPageID(PVM pVM, uint32_t idPage, RTHCPHYS HCPhys, void **ppv);
int pgmPhysGCPhys2CCPtrInternal(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
int pgmPhysGCPhys2CCPtrInternalReadOnly(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, const void **ppv);
VMMDECL(int) pgmPhysRomWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
#ifdef IN_RING3
void pgmR3PhysRelinkRamRanges(PVM pVM);
int pgmR3PhysRamPreAllocate(PVM pVM);
int pgmR3PhysRamReset(PVM pVM);
int pgmR3PhysRomReset(PVM pVM);
int pgmR3PhysChunkMap(PVM pVM, uint32_t idChunk, PPPGMCHUNKR3MAP ppChunk);
int pgmR3PoolInit(PVM pVM);
void pgmR3PoolRelocate(PVM pVM);
void pgmR3PoolReset(PVM pVM);
#endif /* IN_RING3 */
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
int pgmR0DynMapHCPageCommon(PVM pVM, PPGMMAPSET pSet, RTHCPHYS HCPhys, void **ppv);
#endif
int pgmPoolAllocEx(PVM pVM, RTGCPHYS GCPhys, PGMPOOLKIND enmKind, PGMPOOLACCESS enmAccess, uint16_t iUser, uint32_t iUserTable, PPPGMPOOLPAGE ppPage, bool fLockPage = false);
DECLINLINE(int) pgmPoolAlloc(PVM pVM, RTGCPHYS GCPhys, PGMPOOLKIND enmKind, uint16_t iUser, uint32_t iUserTable, PPPGMPOOLPAGE ppPage, bool fLockPage = false)
{
return pgmPoolAllocEx(pVM, GCPhys, enmKind, PGMPOOLACCESS_DONTCARE, iUser, iUserTable, ppPage, fLockPage);
}
void pgmPoolFree(PVM pVM, RTHCPHYS HCPhys, uint16_t iUser, uint32_t iUserTable);
void pgmPoolFreeByPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, uint16_t iUser, uint32_t iUserTable);
int pgmPoolFlushPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
void pgmPoolFlushPageByGCPhys(PVM pVM, RTGCPHYS GCPhys);
void pgmPoolClearAll(PVM pVM);
PPGMPOOLPAGE pgmPoolGetPage(PPGMPOOL pPool, RTHCPHYS HCPhys);
int pgmPoolSyncCR3(PVMCPU pVCpu);
bool pgmPoolIsDirtyPage(PVM pVM, RTGCPHYS GCPhys);
int pgmPoolTrackFlushGCPhys(PVM pVM, PPGMPAGE pPhysPage, bool *pfFlushTLBs);
uint16_t pgmPoolTrackPhysExtAddref(PVM pVM, uint16_t u16, uint16_t iShwPT);
void pgmPoolTrackPhysExtDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPoolPage, PPGMPAGE pPhysPage);
void pgmPoolTracDerefGCPhysHint(PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTHCPHYS HCPhys, RTGCPHYS GCPhysHint);
#ifdef PGMPOOL_WITH_MONITORING
void pgmPoolMonitorChainChanging(PVMCPU pVCpu, PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTGCPHYS GCPhysFault, CTXTYPE(RTGCPTR, RTHCPTR, RTGCPTR) pvAddress, PDISCPUSTATE pCpu);
int pgmPoolMonitorChainFlush(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
void pgmPoolMonitorModifiedInsert(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
#endif
void pgmPoolAddDirtyPage(PVM pVM, PPGMPOOL pPool, PPGMPOOLPAGE pPage);
void pgmPoolResetDirtyPages(PVM pVM, bool fForceRemoval = false);
int pgmR3ExitShadowModeBeforePoolFlush(PVM pVM, PVMCPU pVCpu);
int pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu);
void pgmMapSetShadowPDEs(PVM pVM, PPGMMAPPING pMap, unsigned iNewPDE);
void pgmMapClearShadowPDEs(PVM pVM, PPGMPOOLPAGE pShwPageCR3, PPGMMAPPING pMap, unsigned iOldPDE, bool fDeactivateCR3);
int pgmMapActivateCR3(PVM pVM, PPGMPOOLPAGE pShwPageCR3);
int pgmMapDeactivateCR3(PVM pVM, PPGMPOOLPAGE pShwPageCR3);
int pgmShwSyncPaePDPtr(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDPE pGstPdpe, PX86PDPAE *ppPD);
#ifndef IN_RC
int pgmShwSyncLongModePDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, PX86PML4E pGstPml4e, PX86PDPE pGstPdpe, PX86PDPAE *ppPD);
#endif
int pgmShwGetEPTPDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, PEPTPDPT *ppPdpt, PEPTPD *ppPD);
PX86PD pgmGstLazyMap32BitPD(PPGMCPU pPGM);
PX86PDPT pgmGstLazyMapPaePDPT(PPGMCPU pPGM);
PX86PDPAE pgmGstLazyMapPaePD(PPGMCPU pPGM, uint32_t iPdpt);
PX86PML4 pgmGstLazyMapPml4(PPGMCPU pPGM);
RT_C_DECLS_END
/**
* Gets the PGMRAMRANGE structure for a guest page.
*
* @returns Pointer to the RAM range on success.
* @returns NULL on a VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS condition.
*
* @param pPGM PGM handle.
* @param GCPhys The GC physical address.
*/
DECLINLINE(PPGMRAMRANGE) pgmPhysGetRange(PPGM pPGM, RTGCPHYS GCPhys)
{
/*
* Optimize for the first range.
*/
PPGMRAMRANGE pRam = pPGM->CTX_SUFF(pRamRanges);
RTGCPHYS off = GCPhys - pRam->GCPhys;
if (RT_UNLIKELY(off >= pRam->cb))
{
do
{
pRam = pRam->CTX_SUFF(pNext);
if (RT_UNLIKELY(!pRam))
break;
off = GCPhys - pRam->GCPhys;
} while (off >= pRam->cb);
}
return pRam;
}
/**
* Gets the PGMPAGE structure for a guest page.
*
* @returns Pointer to the page on success.
* @returns NULL on a VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS condition.
*
* @param pPGM PGM handle.
* @param GCPhys The GC physical address.
*/
DECLINLINE(PPGMPAGE) pgmPhysGetPage(PPGM pPGM, RTGCPHYS GCPhys)
{
/*
* Optimize for the first range.
*/
PPGMRAMRANGE pRam = pPGM->CTX_SUFF(pRamRanges);
RTGCPHYS off = GCPhys - pRam->GCPhys;
if (RT_UNLIKELY(off >= pRam->cb))
{
do
{
pRam = pRam->CTX_SUFF(pNext);
if (RT_UNLIKELY(!pRam))
return NULL;
off = GCPhys - pRam->GCPhys;
} while (off >= pRam->cb);
}
return &pRam->aPages[off >> PAGE_SHIFT];
}
/**
* Gets the PGMPAGE structure for a guest page.
*
* Old Phys code: Will make sure the page is present.
*
* @returns VBox status code.
* @retval VINF_SUCCESS and a valid *ppPage on success.
* @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS if the address isn't valid.
*
* @param pPGM PGM handle.
* @param GCPhys The GC physical address.
* @param ppPage Where to store the page poitner on success.
*/
DECLINLINE(int) pgmPhysGetPageEx(PPGM pPGM, RTGCPHYS GCPhys, PPPGMPAGE ppPage)
{
/*
* Optimize for the first range.
*/
PPGMRAMRANGE pRam = pPGM->CTX_SUFF(pRamRanges);
RTGCPHYS off = GCPhys - pRam->GCPhys;
if (RT_UNLIKELY(off >= pRam->cb))
{
do
{
pRam = pRam->CTX_SUFF(pNext);
if (RT_UNLIKELY(!pRam))
{
*ppPage = NULL; /* avoid incorrect and very annoying GCC warnings */
return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
}
off = GCPhys - pRam->GCPhys;
} while (off >= pRam->cb);
}
*ppPage = &pRam->aPages[off >> PAGE_SHIFT];
return VINF_SUCCESS;
}
/**
* Gets the PGMPAGE structure for a guest page.
*
* Old Phys code: Will make sure the page is present.
*
* @returns VBox status code.
* @retval VINF_SUCCESS and a valid *ppPage on success.
* @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS if the address isn't valid.
*
* @param pPGM PGM handle.
* @param GCPhys The GC physical address.
* @param ppPage Where to store the page poitner on success.
* @param ppRamHint Where to read and store the ram list hint.
* The caller initializes this to NULL before the call.
*/
DECLINLINE(int) pgmPhysGetPageWithHintEx(PPGM pPGM, RTGCPHYS GCPhys, PPPGMPAGE ppPage, PPGMRAMRANGE *ppRamHint)
{
RTGCPHYS off;
PPGMRAMRANGE pRam = *ppRamHint;
if ( !pRam
|| RT_UNLIKELY((off = GCPhys - pRam->GCPhys) >= pRam->cb))
{
pRam = pPGM->CTX_SUFF(pRamRanges);
off = GCPhys - pRam->GCPhys;
if (RT_UNLIKELY(off >= pRam->cb))
{
do
{
pRam = pRam->CTX_SUFF(pNext);
if (RT_UNLIKELY(!pRam))
{
*ppPage = NULL; /* Kill the incorrect and extremely annoying GCC warnings. */
return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
}
off = GCPhys - pRam->GCPhys;
} while (off >= pRam->cb);
}
*ppRamHint = pRam;
}
*ppPage = &pRam->aPages[off >> PAGE_SHIFT];
return VINF_SUCCESS;
}
/**
* Gets the PGMPAGE structure for a guest page together with the PGMRAMRANGE.
*
* @returns Pointer to the page on success.
* @returns NULL on a VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS condition.
*
* @param pPGM PGM handle.
* @param GCPhys The GC physical address.
* @param ppRam Where to store the pointer to the PGMRAMRANGE.
*/
DECLINLINE(PPGMPAGE) pgmPhysGetPageAndRange(PPGM pPGM, RTGCPHYS GCPhys, PPGMRAMRANGE *ppRam)
{
/*
* Optimize for the first range.
*/
PPGMRAMRANGE pRam = pPGM->CTX_SUFF(pRamRanges);
RTGCPHYS off = GCPhys - pRam->GCPhys;
if (RT_UNLIKELY(off >= pRam->cb))
{
do
{
pRam = pRam->CTX_SUFF(pNext);
if (RT_UNLIKELY(!pRam))
return NULL;
off = GCPhys - pRam->GCPhys;
} while (off >= pRam->cb);
}
*ppRam = pRam;
return &pRam->aPages[off >> PAGE_SHIFT];
}
/**
* Gets the PGMPAGE structure for a guest page together with the PGMRAMRANGE.
*
* @returns Pointer to the page on success.
* @returns NULL on a VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS condition.
*
* @param pPGM PGM handle.
* @param GCPhys The GC physical address.
* @param ppPage Where to store the pointer to the PGMPAGE structure.
* @param ppRam Where to store the pointer to the PGMRAMRANGE structure.
*/
DECLINLINE(int) pgmPhysGetPageAndRangeEx(PPGM pPGM, RTGCPHYS GCPhys, PPPGMPAGE ppPage, PPGMRAMRANGE *ppRam)
{
/*
* Optimize for the first range.
*/
PPGMRAMRANGE pRam = pPGM->CTX_SUFF(pRamRanges);
RTGCPHYS off = GCPhys - pRam->GCPhys;
if (RT_UNLIKELY(off >= pRam->cb))
{
do
{
pRam = pRam->CTX_SUFF(pNext);
if (RT_UNLIKELY(!pRam))
{
*ppRam = NULL; /* Shut up silly GCC warnings. */
*ppPage = NULL; /* ditto */
return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
}
off = GCPhys - pRam->GCPhys;
} while (off >= pRam->cb);
}
*ppRam = pRam;
*ppPage = &pRam->aPages[off >> PAGE_SHIFT];
return VINF_SUCCESS;
}
/**
* Convert GC Phys to HC Phys.
*
* @returns VBox status.
* @param pPGM PGM handle.
* @param GCPhys The GC physical address.
* @param pHCPhys Where to store the corresponding HC physical address.
*
* @deprecated Doesn't deal with zero, shared or write monitored pages.
* Avoid when writing new code!
*/
DECLINLINE(int) pgmRamGCPhys2HCPhys(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPHYS pHCPhys)
{
PPGMPAGE pPage;
int rc = pgmPhysGetPageEx(pPGM, GCPhys, &pPage);
if (RT_FAILURE(rc))
return rc;
*pHCPhys = PGM_PAGE_GET_HCPHYS(pPage) | (GCPhys & PAGE_OFFSET_MASK);
return VINF_SUCCESS;
}
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
/**
* Inlined version of the ring-0 version of PGMDynMapHCPage that
* optimizes access to pages already in the set.
*
* @returns VINF_SUCCESS. Will bail out to ring-3 on failure.
* @param pPGM Pointer to the PVM instance data.
* @param HCPhys The physical address of the page.
* @param ppv Where to store the mapping address.
*/
DECLINLINE(int) pgmR0DynMapHCPageInlined(PPGM pPGM, RTHCPHYS HCPhys, void **ppv)
{
PVM pVM = PGM2VM(pPGM);
PPGMCPU pPGMCPU = (PPGMCPU)((uint8_t *)VMMGetCpu(pVM) + pPGM->offVCpuPGM); /* very pretty ;-) */
PPGMMAPSET pSet = &pPGMCPU->AutoSet;
STAM_PROFILE_START(&pPGMCPU->StatR0DynMapHCPageInl, a);
Assert(!(HCPhys & PAGE_OFFSET_MASK));
Assert(pSet->cEntries <= RT_ELEMENTS(pSet->aEntries));
unsigned iHash = PGMMAPSET_HASH(HCPhys);
unsigned iEntry = pSet->aiHashTable[iHash];
if ( iEntry < pSet->cEntries
&& pSet->aEntries[iEntry].HCPhys == HCPhys)
{
*ppv = pSet->aEntries[iEntry].pvPage;
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapHCPageInlHits);
}
else
{
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapHCPageInlMisses);
pgmR0DynMapHCPageCommon(pVM, pSet, HCPhys, ppv);
}
STAM_PROFILE_STOP(&pPGMCPU->StatR0DynMapHCPageInl, a);
return VINF_SUCCESS;
}
/**
* Inlined version of the ring-0 version of PGMDynMapGCPage that optimizes
* access to pages already in the set.
*
* @returns See PGMDynMapGCPage.
* @param pPGM Pointer to the PVM instance data.
* @param HCPhys The physical address of the page.
* @param ppv Where to store the mapping address.
*/
DECLINLINE(int) pgmR0DynMapGCPageInlined(PPGM pPGM, RTGCPHYS GCPhys, void **ppv)
{
PVM pVM = PGM2VM(pPGM);
PPGMCPU pPGMCPU = (PPGMCPU)((uint8_t *)VMMGetCpu(pVM) + pPGM->offVCpuPGM); /* very pretty ;-) */
STAM_PROFILE_START(&pPGMCPU->StatR0DynMapGCPageInl, a);
AssertMsg(!(GCPhys & PAGE_OFFSET_MASK), ("%RGp\n", GCPhys));
/*
* Get the ram range.
*/
PPGMRAMRANGE pRam = pPGM->CTX_SUFF(pRamRanges);
RTGCPHYS off = GCPhys - pRam->GCPhys;
if (RT_UNLIKELY(off >= pRam->cb
/** @todo || page state stuff */))
{
/* This case is not counted into StatR0DynMapGCPageInl. */
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapGCPageInlRamMisses);
return PGMDynMapGCPage(pVM, GCPhys, ppv);
}
RTHCPHYS HCPhys = PGM_PAGE_GET_HCPHYS(&pRam->aPages[off >> PAGE_SHIFT]);
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapGCPageInlRamHits);
/*
* pgmR0DynMapHCPageInlined with out stats.
*/
PPGMMAPSET pSet = &pPGMCPU->AutoSet;
Assert(!(HCPhys & PAGE_OFFSET_MASK));
Assert(pSet->cEntries <= RT_ELEMENTS(pSet->aEntries));
unsigned iHash = PGMMAPSET_HASH(HCPhys);
unsigned iEntry = pSet->aiHashTable[iHash];
if ( iEntry < pSet->cEntries
&& pSet->aEntries[iEntry].HCPhys == HCPhys)
{
*ppv = pSet->aEntries[iEntry].pvPage;
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapGCPageInlHits);
}
else
{
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapGCPageInlMisses);
pgmR0DynMapHCPageCommon(pVM, pSet, HCPhys, ppv);
}
STAM_PROFILE_STOP(&pPGMCPU->StatR0DynMapGCPageInl, a);
return VINF_SUCCESS;
}
/**
* Inlined version of the ring-0 version of PGMDynMapGCPageOff that optimizes
* access to pages already in the set.
*
* @returns See PGMDynMapGCPage.
* @param pPGM Pointer to the PVM instance data.
* @param HCPhys The physical address of the page.
* @param ppv Where to store the mapping address.
*/
DECLINLINE(int) pgmR0DynMapGCPageOffInlined(PPGM pPGM, RTGCPHYS GCPhys, void **ppv)
{
PVM pVM = PGM2VM(pPGM);
PPGMCPU pPGMCPU = (PPGMCPU)((uint8_t *)VMMGetCpu(pVM) + pPGM->offVCpuPGM); /* very pretty ;-) */
STAM_PROFILE_START(&pPGMCPU->StatR0DynMapGCPageInl, a);
/*
* Get the ram range.
*/
PPGMRAMRANGE pRam = pPGM->CTX_SUFF(pRamRanges);
RTGCPHYS off = GCPhys - pRam->GCPhys;
if (RT_UNLIKELY(off >= pRam->cb
/** @todo || page state stuff */))
{
/* This case is not counted into StatR0DynMapGCPageInl. */
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapGCPageInlRamMisses);
return PGMDynMapGCPageOff(pVM, GCPhys, ppv);
}
RTHCPHYS HCPhys = PGM_PAGE_GET_HCPHYS(&pRam->aPages[off >> PAGE_SHIFT]);
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapGCPageInlRamHits);
/*
* pgmR0DynMapHCPageInlined with out stats.
*/
PPGMMAPSET pSet = &pPGMCPU->AutoSet;
Assert(!(HCPhys & PAGE_OFFSET_MASK));
Assert(pSet->cEntries <= RT_ELEMENTS(pSet->aEntries));
unsigned iHash = PGMMAPSET_HASH(HCPhys);
unsigned iEntry = pSet->aiHashTable[iHash];
if ( iEntry < pSet->cEntries
&& pSet->aEntries[iEntry].HCPhys == HCPhys)
{
*ppv = (void *)((uintptr_t)pSet->aEntries[iEntry].pvPage | (PAGE_OFFSET_MASK & (uintptr_t)GCPhys));
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapGCPageInlHits);
}
else
{
STAM_COUNTER_INC(&pPGMCPU->StatR0DynMapGCPageInlMisses);
pgmR0DynMapHCPageCommon(pVM, pSet, HCPhys, ppv);
*ppv = (void *)((uintptr_t)*ppv | (PAGE_OFFSET_MASK & (uintptr_t)GCPhys));
}
STAM_PROFILE_STOP(&pPGMCPU->StatR0DynMapGCPageInl, a);
return VINF_SUCCESS;
}
#endif /* VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0 */
#if defined(IN_RC) || defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
/**
* Maps the page into current context (RC and maybe R0).
*
* @returns pointer to the mapping.
* @param pVM Pointer to the PGM instance data.
* @param pPage The page.
*/
DECLINLINE(void *) pgmPoolMapPageInlined(PPGM pPGM, PPGMPOOLPAGE pPage)
{
if (pPage->idx >= PGMPOOL_IDX_FIRST)
{
Assert(pPage->idx < pPGM->CTX_SUFF(pPool)->cCurPages);
void *pv;
# ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
pgmR0DynMapHCPageInlined(pPGM, pPage->Core.Key, &pv);
# else
PGMDynMapHCPage(PGM2VM(pPGM), pPage->Core.Key, &pv);
# endif
return pv;
}
AssertFatalMsgFailed(("pgmPoolMapPageInlined invalid page index %x\n", pPage->idx));
}
/**
* Temporarily maps one host page specified by HC physical address, returning
* pointer within the page.
*
* Be WARNED that the dynamic page mapping area is small, 8 pages, thus the space is
* reused after 8 mappings (or perhaps a few more if you score with the cache).
*
* @returns The address corresponding to HCPhys.
* @param pPGM Pointer to the PVM instance data.
* @param HCPhys HC Physical address of the page.
*/
DECLINLINE(void *) pgmDynMapHCPageOff(PPGM pPGM, RTHCPHYS HCPhys)
{
void *pv;
# ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
pgmR0DynMapHCPageInlined(pPGM, HCPhys & ~(RTHCPHYS)PAGE_OFFSET_MASK, &pv);
# else
PGMDynMapHCPage(PGM2VM(pPGM), HCPhys & ~(RTHCPHYS)PAGE_OFFSET_MASK, &pv);
# endif
pv = (void *)((uintptr_t)pv | (HCPhys & PAGE_OFFSET_MASK));
return pv;
}
#endif /* VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0 || IN_RC */
#ifndef IN_RC
/**
* Queries the Physical TLB entry for a physical guest page,
* attempting to load the TLB entry if necessary.
*
* @returns VBox status code.
* @retval VINF_SUCCESS on success
* @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS if it's not a valid physical address.
*
* @param pPGM The PGM instance handle.
* @param GCPhys The address of the guest page.
* @param ppTlbe Where to store the pointer to the TLB entry.
*/
DECLINLINE(int) pgmPhysPageQueryTlbe(PPGM pPGM, RTGCPHYS GCPhys, PPPGMPAGEMAPTLBE ppTlbe)
{
int rc;
PPGMPAGEMAPTLBE pTlbe = &pPGM->CTXSUFF(PhysTlb).aEntries[PGM_PAGEMAPTLB_IDX(GCPhys)];
if (pTlbe->GCPhys == (GCPhys & X86_PTE_PAE_PG_MASK))
{
STAM_COUNTER_INC(&pPGM->CTX_MID_Z(Stat,PageMapTlbHits));
rc = VINF_SUCCESS;
}
else
rc = pgmPhysPageLoadIntoTlb(pPGM, GCPhys);
*ppTlbe = pTlbe;
return rc;
}
/**
* Queries the Physical TLB entry for a physical guest page,
* attempting to load the TLB entry if necessary.
*
* @returns VBox status code.
* @retval VINF_SUCCESS on success
* @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS if it's not a valid physical address.
*
* @param pPGM The PGM instance handle.
* @param pPage Pointer to the PGMPAGE structure corresponding to
* GCPhys.
* @param GCPhys The address of the guest page.
* @param ppTlbe Where to store the pointer to the TLB entry.
*/
DECLINLINE(int) pgmPhysPageQueryTlbeWithPage(PPGM pPGM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPPGMPAGEMAPTLBE ppTlbe)
{
int rc;
PPGMPAGEMAPTLBE pTlbe = &pPGM->CTXSUFF(PhysTlb).aEntries[PGM_PAGEMAPTLB_IDX(GCPhys)];
if (pTlbe->GCPhys == (GCPhys & X86_PTE_PAE_PG_MASK))
{
STAM_COUNTER_INC(&pPGM->CTX_MID_Z(Stat,PageMapTlbHits));
rc = VINF_SUCCESS;
}
else
rc = pgmPhysPageLoadIntoTlbWithPage(pPGM, pPage, GCPhys);
*ppTlbe = pTlbe;
return rc;
}
#endif /* !IN_RC */
/**
* Calculated the guest physical address of the large (4 MB) page in 32 bits paging mode.
* Takes PSE-36 into account.
*
* @returns guest physical address
* @param pPGM Pointer to the PGM instance data.
* @param Pde Guest Pde
*/
DECLINLINE(RTGCPHYS) pgmGstGet4MBPhysPage(PPGM pPGM, X86PDE Pde)
{
RTGCPHYS GCPhys = Pde.u & X86_PDE4M_PG_MASK;
GCPhys |= (RTGCPHYS)Pde.b.u8PageNoHigh << 32;
return GCPhys & pPGM->GCPhys4MBPSEMask;
}
/**
* Gets the page directory entry for the specified address (32-bit paging).
*
* @returns The page directory entry in question.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(X86PDE) pgmGstGet32bitPDE(PPGMCPU pPGM, RTGCPTR GCPtr)
{
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PCX86PD pGuestPD = NULL;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pPGM->GCPhysCR3, (void **)&pGuestPD);
if (RT_FAILURE(rc))
{
X86PDE ZeroPde = {0};
AssertMsgFailedReturn(("%Rrc\n", rc), ZeroPde);
}
#else
PX86PD pGuestPD = pPGM->CTX_SUFF(pGst32BitPd);
# ifdef IN_RING3
if (!pGuestPD)
pGuestPD = pgmGstLazyMap32BitPD(pPGM);
# endif
#endif
return pGuestPD->a[GCPtr >> X86_PD_SHIFT];
}
/**
* Gets the address of a specific page directory entry (32-bit paging).
*
* @returns Pointer the page directory entry in question.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDE) pgmGstGet32bitPDEPtr(PPGMCPU pPGM, RTGCPTR GCPtr)
{
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PD pGuestPD = NULL;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pPGM->GCPhysCR3, (void **)&pGuestPD);
AssertRCReturn(rc, NULL);
#else
PX86PD pGuestPD = pPGM->CTX_SUFF(pGst32BitPd);
# ifdef IN_RING3
if (!pGuestPD)
pGuestPD = pgmGstLazyMap32BitPD(pPGM);
# endif
#endif
return &pGuestPD->a[GCPtr >> X86_PD_SHIFT];
}
/**
* Gets the address the guest page directory (32-bit paging).
*
* @returns Pointer the page directory entry in question.
* @param pPGM Pointer to the PGM instance data.
*/
DECLINLINE(PX86PD) pgmGstGet32bitPDPtr(PPGMCPU pPGM)
{
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PD pGuestPD = NULL;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pPGM->GCPhysCR3, (void **)&pGuestPD);
AssertRCReturn(rc, NULL);
#else
PX86PD pGuestPD = pPGM->CTX_SUFF(pGst32BitPd);
# ifdef IN_RING3
if (!pGuestPD)
pGuestPD = pgmGstLazyMap32BitPD(pPGM);
# endif
#endif
return pGuestPD;
}
/**
* Gets the guest page directory pointer table.
*
* @returns Pointer to the page directory in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
*/
DECLINLINE(PX86PDPT) pgmGstGetPaePDPTPtr(PPGMCPU pPGM)
{
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PDPT pGuestPDPT = NULL;
int rc = pgmR0DynMapGCPageOffInlined(PGMCPU2PGM(pPGM), pPGM->GCPhysCR3, (void **)&pGuestPDPT);
AssertRCReturn(rc, NULL);
#else
PX86PDPT pGuestPDPT = pPGM->CTX_SUFF(pGstPaePdpt);
# ifdef IN_RING3
if (!pGuestPDPT)
pGuestPDPT = pgmGstLazyMapPaePDPT(pPGM);
# endif
#endif
return pGuestPDPT;
}
/**
* Gets the guest page directory pointer table entry for the specified address.
*
* @returns Pointer to the page directory in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDPE) pgmGstGetPaePDPEPtr(PPGMCPU pPGM, RTGCPTR GCPtr)
{
AssertGCPtr32(GCPtr);
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PDPT pGuestPDPT = 0;
int rc = pgmR0DynMapGCPageOffInlined(PGMCPU2PGM(pPGM), pPGM->GCPhysCR3, (void **)&pGuestPDPT);
AssertRCReturn(rc, 0);
#else
PX86PDPT pGuestPDPT = pPGM->CTX_SUFF(pGstPaePdpt);
# ifdef IN_RING3
if (!pGuestPDPT)
pGuestPDPT = pgmGstLazyMapPaePDPT(pPGM);
# endif
#endif
return &pGuestPDPT->a[(GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE];
}
/**
* Gets the page directory for the specified address.
*
* @returns Pointer to the page directory in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDPAE) pgmGstGetPaePD(PPGMCPU pPGM, RTGCPTR GCPtr)
{
AssertGCPtr32(GCPtr);
PX86PDPT pGuestPDPT = pgmGstGetPaePDPTPtr(pPGM);
AssertReturn(pGuestPDPT, NULL);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE;
if (pGuestPDPT->a[iPdpt].n.u1Present)
{
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PDPAE pGuestPD = NULL;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK, (void **)&pGuestPD);
AssertRCReturn(rc, NULL);
#else
PX86PDPAE pGuestPD = pPGM->CTX_SUFF(apGstPaePDs)[iPdpt];
if ( !pGuestPD
|| (pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK) != pPGM->aGCPhysGstPaePDs[iPdpt])
pGuestPD = pgmGstLazyMapPaePD(pPGM, iPdpt);
#endif
return pGuestPD;
/* returning NULL is ok if we assume it's just an invalid page of some kind emulated as all 0s. (not quite true) */
}
return NULL;
}
/**
* Gets the page directory entry for the specified address.
*
* @returns Pointer to the page directory entry in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDEPAE) pgmGstGetPaePDEPtr(PPGMCPU pPGM, RTGCPTR GCPtr)
{
AssertGCPtr32(GCPtr);
PX86PDPT pGuestPDPT = pgmGstGetPaePDPTPtr(pPGM);
AssertReturn(pGuestPDPT, NULL);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE;
if (pGuestPDPT->a[iPdpt].n.u1Present)
{
const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PDPAE pGuestPD = NULL;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK, (void **)&pGuestPD);
AssertRCReturn(rc, NULL);
#else
PX86PDPAE pGuestPD = pPGM->CTX_SUFF(apGstPaePDs)[iPdpt];
if ( !pGuestPD
|| (pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK) != pPGM->aGCPhysGstPaePDs[iPdpt])
pGuestPD = pgmGstLazyMapPaePD(pPGM, iPdpt);
#endif
return &pGuestPD->a[iPD];
/* returning NIL_RTGCPHYS is ok if we assume it's just an invalid page or something which we'll emulate as all 0s. (not quite true) */
}
return NULL;
}
/**
* Gets the page directory entry for the specified address.
*
* @returns The page directory entry in question.
* @returns A non-present entry if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(X86PDEPAE) pgmGstGetPaePDE(PPGMCPU pPGM, RTGCPTR GCPtr)
{
AssertGCPtr32(GCPtr);
X86PDEPAE ZeroPde = {0};
PX86PDPT pGuestPDPT = pgmGstGetPaePDPTPtr(pPGM);
if (RT_LIKELY(pGuestPDPT))
{
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE;
if (pGuestPDPT->a[iPdpt].n.u1Present)
{
const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PDPAE pGuestPD = NULL;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK, (void **)&pGuestPD);
AssertRCReturn(rc, ZeroPde);
#else
PX86PDPAE pGuestPD = pPGM->CTX_SUFF(apGstPaePDs)[iPdpt];
if ( !pGuestPD
|| (pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK) != pPGM->aGCPhysGstPaePDs[iPdpt])
pGuestPD = pgmGstLazyMapPaePD(pPGM, iPdpt);
#endif
return pGuestPD->a[iPD];
}
}
return ZeroPde;
}
/**
* Gets the page directory pointer table entry for the specified address
* and returns the index into the page directory
*
* @returns Pointer to the page directory in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
* @param piPD Receives the index into the returned page directory
* @param pPdpe Receives the page directory pointer entry. Optional.
*/
DECLINLINE(PX86PDPAE) pgmGstGetPaePDPtr(PPGMCPU pPGM, RTGCPTR GCPtr, unsigned *piPD, PX86PDPE pPdpe)
{
AssertGCPtr32(GCPtr);
PX86PDPT pGuestPDPT = pgmGstGetPaePDPTPtr(pPGM);
AssertReturn(pGuestPDPT, NULL);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE;
if (pPdpe)
*pPdpe = pGuestPDPT->a[iPdpt];
if (pGuestPDPT->a[iPdpt].n.u1Present)
{
const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PDPAE pGuestPD = NULL;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK, (void **)&pGuestPD);
AssertRCReturn(rc, NULL);
#else
PX86PDPAE pGuestPD = pPGM->CTX_SUFF(apGstPaePDs)[iPdpt];
if ( !pGuestPD
|| (pGuestPDPT->a[iPdpt].u & X86_PDPE_PG_MASK) != pPGM->aGCPhysGstPaePDs[iPdpt])
pGuestPD = pgmGstLazyMapPaePD(pPGM, iPdpt);
#endif
*piPD = iPD;
return pGuestPD;
/* returning NIL_RTGCPHYS is ok if we assume it's just an invalid page of some kind emulated as all 0s. */
}
return NULL;
}
#ifndef IN_RC
/**
* Gets the page map level-4 pointer for the guest.
*
* @returns Pointer to the PML4 page.
* @param pPGM Pointer to the PGM instance data.
*/
DECLINLINE(PX86PML4) pgmGstGetLongModePML4Ptr(PPGMCPU pPGM)
{
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PML4 pGuestPml4;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pPGM->GCPhysCR3, (void **)&pGuestPml4);
AssertRCReturn(rc, NULL);
#else
PX86PML4 pGuestPml4 = pPGM->CTX_SUFF(pGstAmd64Pml4);
# ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R3
if (!pGuestPml4)
pGuestPml4 = pgmGstLazyMapPml4(pPGM);
# endif
Assert(pGuestPml4);
#endif
return pGuestPml4;
}
/**
* Gets the pointer to a page map level-4 entry.
*
* @returns Pointer to the PML4 entry.
* @param pPGM Pointer to the PGM instance data.
* @param iPml4 The index.
*/
DECLINLINE(PX86PML4E) pgmGstGetLongModePML4EPtr(PPGMCPU pPGM, unsigned int iPml4)
{
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PML4 pGuestPml4;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pPGM->GCPhysCR3, (void **)&pGuestPml4);
AssertRCReturn(rc, NULL);
#else
PX86PML4 pGuestPml4 = pPGM->CTX_SUFF(pGstAmd64Pml4);
# ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R3
if (!pGuestPml4)
pGuestPml4 = pgmGstLazyMapPml4(pPGM);
# endif
Assert(pGuestPml4);
#endif
return &pGuestPml4->a[iPml4];
}
/**
* Gets a page map level-4 entry.
*
* @returns The PML4 entry.
* @param pPGM Pointer to the PGM instance data.
* @param iPml4 The index.
*/
DECLINLINE(X86PML4E) pgmGstGetLongModePML4E(PPGMCPU pPGM, unsigned int iPml4)
{
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
PX86PML4 pGuestPml4;
int rc = pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), pPGM->GCPhysCR3, (void **)&pGuestPml4);
if (RT_FAILURE(rc))
{
X86PML4E ZeroPml4e = {0};
AssertMsgFailedReturn(("%Rrc\n", rc), ZeroPml4e);
}
#else
PX86PML4 pGuestPml4 = pPGM->CTX_SUFF(pGstAmd64Pml4);
# ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R3
if (!pGuestPml4)
pGuestPml4 = pgmGstLazyMapPml4(pPGM);
# endif
Assert(pGuestPml4);
#endif
return pGuestPml4->a[iPml4];
}
/**
* Gets the page directory pointer entry for the specified address.
*
* @returns Pointer to the page directory pointer entry in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
* @param ppPml4e Page Map Level-4 Entry (out)
*/
DECLINLINE(PX86PDPE) pgmGstGetLongModePDPTPtr(PPGMCPU pPGM, RTGCPTR64 GCPtr, PX86PML4E *ppPml4e)
{
PX86PML4 pGuestPml4 = pgmGstGetLongModePML4Ptr(pPGM);
const unsigned iPml4 = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
PCX86PML4E pPml4e = *ppPml4e = &pGuestPml4->a[iPml4];
if (pPml4e->n.u1Present)
{
PX86PDPT pPdpt;
int rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pPml4e->u & X86_PML4E_PG_MASK, &pPdpt);
AssertRCReturn(rc, NULL);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
return &pPdpt->a[iPdpt];
}
return NULL;
}
/**
* Gets the page directory entry for the specified address.
*
* @returns The page directory entry in question.
* @returns A non-present entry if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
* @param ppPml4e Page Map Level-4 Entry (out)
* @param pPdpe Page directory pointer table entry (out)
*/
DECLINLINE(X86PDEPAE) pgmGstGetLongModePDEEx(PPGMCPU pPGM, RTGCPTR64 GCPtr, PX86PML4E *ppPml4e, PX86PDPE pPdpe)
{
X86PDEPAE ZeroPde = {0};
PX86PML4 pGuestPml4 = pgmGstGetLongModePML4Ptr(pPGM);
const unsigned iPml4 = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
PCX86PML4E pPml4e = *ppPml4e = &pGuestPml4->a[iPml4];
if (pPml4e->n.u1Present)
{
PCX86PDPT pPdptTemp;
int rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pPml4e->u & X86_PML4E_PG_MASK, &pPdptTemp);
AssertRCReturn(rc, ZeroPde);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
*pPdpe = pPdptTemp->a[iPdpt];
if (pPdptTemp->a[iPdpt].n.u1Present)
{
PCX86PDPAE pPD;
rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pPdptTemp->a[iPdpt].u & X86_PDPE_PG_MASK, &pPD);
AssertRCReturn(rc, ZeroPde);
const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
return pPD->a[iPD];
}
}
return ZeroPde;
}
/**
* Gets the page directory entry for the specified address.
*
* @returns The page directory entry in question.
* @returns A non-present entry if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(X86PDEPAE) pgmGstGetLongModePDE(PPGMCPU pPGM, RTGCPTR64 GCPtr)
{
X86PDEPAE ZeroPde = {0};
PCX86PML4 pGuestPml4 = pgmGstGetLongModePML4Ptr(pPGM);
const unsigned iPml4 = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
if (pGuestPml4->a[iPml4].n.u1Present)
{
PCX86PDPT pPdptTemp;
int rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pGuestPml4->a[iPml4].u & X86_PML4E_PG_MASK, &pPdptTemp);
AssertRCReturn(rc, ZeroPde);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
if (pPdptTemp->a[iPdpt].n.u1Present)
{
PCX86PDPAE pPD;
rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pPdptTemp->a[iPdpt].u & X86_PDPE_PG_MASK, &pPD);
AssertRCReturn(rc, ZeroPde);
const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
return pPD->a[iPD];
}
}
return ZeroPde;
}
/**
* Gets the page directory entry for the specified address.
*
* @returns Pointer to the page directory entry in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDEPAE) pgmGstGetLongModePDEPtr(PPGMCPU pPGM, RTGCPTR64 GCPtr)
{
PCX86PML4 pGuestPml4 = pgmGstGetLongModePML4Ptr(pPGM);
const unsigned iPml4 = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
if (pGuestPml4->a[iPml4].n.u1Present)
{
PCX86PDPT pPdptTemp;
int rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pGuestPml4->a[iPml4].u & X86_PML4E_PG_MASK, &pPdptTemp);
AssertRCReturn(rc, NULL);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
if (pPdptTemp->a[iPdpt].n.u1Present)
{
PX86PDPAE pPD;
rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pPdptTemp->a[iPdpt].u & X86_PDPE_PG_MASK, &pPD);
AssertRCReturn(rc, NULL);
const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
return &pPD->a[iPD];
}
}
return NULL;
}
/**
* Gets the GUEST page directory pointer for the specified address.
*
* @returns The page directory in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
* @param ppPml4e Page Map Level-4 Entry (out)
* @param pPdpe Page directory pointer table entry (out)
* @param piPD Receives the index into the returned page directory
*/
DECLINLINE(PX86PDPAE) pgmGstGetLongModePDPtr(PPGMCPU pPGM, RTGCPTR64 GCPtr, PX86PML4E *ppPml4e, PX86PDPE pPdpe, unsigned *piPD)
{
PX86PML4 pGuestPml4 = pgmGstGetLongModePML4Ptr(pPGM);
const unsigned iPml4 = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
PCX86PML4E pPml4e = *ppPml4e = &pGuestPml4->a[iPml4];
if (pPml4e->n.u1Present)
{
PCX86PDPT pPdptTemp;
int rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pPml4e->u & X86_PML4E_PG_MASK, &pPdptTemp);
AssertRCReturn(rc, NULL);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
*pPdpe = pPdptTemp->a[iPdpt];
if (pPdptTemp->a[iPdpt].n.u1Present)
{
PX86PDPAE pPD;
rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pPdptTemp->a[iPdpt].u & X86_PDPE_PG_MASK, &pPD);
AssertRCReturn(rc, NULL);
*piPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
return pPD;
}
}
return 0;
}
#endif /* !IN_RC */
/**
* Gets the shadow page directory, 32-bit.
*
* @returns Pointer to the shadow 32-bit PD.
* @param pPGM Pointer to the PGM instance data.
*/
DECLINLINE(PX86PD) pgmShwGet32BitPDPtr(PPGMCPU pPGM)
{
return (PX86PD)PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPGM->CTX_SUFF(pShwPageCR3));
}
/**
* Gets the shadow page directory entry for the specified address, 32-bit.
*
* @returns Shadow 32-bit PDE.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(X86PDE) pgmShwGet32BitPDE(PPGMCPU pPGM, RTGCPTR GCPtr)
{
const unsigned iPd = (GCPtr >> X86_PD_SHIFT) & X86_PD_MASK;
PX86PD pShwPde = pgmShwGet32BitPDPtr(pPGM);
if (!pShwPde)
{
X86PDE ZeroPde = {0};
return ZeroPde;
}
return pShwPde->a[iPd];
}
/**
* Gets the pointer to the shadow page directory entry for the specified
* address, 32-bit.
*
* @returns Pointer to the shadow 32-bit PDE.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDE) pgmShwGet32BitPDEPtr(PPGMCPU pPGM, RTGCPTR GCPtr)
{
const unsigned iPd = (GCPtr >> X86_PD_SHIFT) & X86_PD_MASK;
PX86PD pPde = pgmShwGet32BitPDPtr(pPGM);
AssertReturn(pPde, NULL);
return &pPde->a[iPd];
}
/**
* Gets the shadow page pointer table, PAE.
*
* @returns Pointer to the shadow PAE PDPT.
* @param pPGM Pointer to the PGM instance data.
*/
DECLINLINE(PX86PDPT) pgmShwGetPaePDPTPtr(PPGMCPU pPGM)
{
return (PX86PDPT)PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPGM->CTX_SUFF(pShwPageCR3));
}
/**
* Gets the shadow page directory for the specified address, PAE.
*
* @returns Pointer to the shadow PD.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDPAE) pgmShwGetPaePDPtr(PPGMCPU pPGM, RTGCPTR GCPtr)
{
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE;
PX86PDPT pPdpt = pgmShwGetPaePDPTPtr(pPGM);
if (!pPdpt->a[iPdpt].n.u1Present)
return NULL;
/* Fetch the pgm pool shadow descriptor. */
PPGMPOOLPAGE pShwPde = pgmPoolGetPage(PGMCPU2PGM(pPGM)->CTX_SUFF(pPool), pPdpt->a[iPdpt].u & X86_PDPE_PG_MASK);
AssertReturn(pShwPde, NULL);
return (PX86PDPAE)PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pShwPde);
}
/**
* Gets the shadow page directory for the specified address, PAE.
*
* @returns Pointer to the shadow PD.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDPAE) pgmShwGetPaePDPtr(PPGMCPU pPGM, PX86PDPT pPdpt, RTGCPTR GCPtr)
{
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_PAE;
if (!pPdpt->a[iPdpt].n.u1Present)
return NULL;
/* Fetch the pgm pool shadow descriptor. */
PPGMPOOLPAGE pShwPde = pgmPoolGetPage(PGMCPU2PGM(pPGM)->CTX_SUFF(pPool), pPdpt->a[iPdpt].u & X86_PDPE_PG_MASK);
AssertReturn(pShwPde, NULL);
return (PX86PDPAE)PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pShwPde);
}
/**
* Gets the shadow page directory entry, PAE.
*
* @returns PDE.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(X86PDEPAE) pgmShwGetPaePDE(PPGMCPU pPGM, RTGCPTR GCPtr)
{
const unsigned iPd = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
PX86PDPAE pShwPde = pgmShwGetPaePDPtr(pPGM, GCPtr);
if (!pShwPde)
{
X86PDEPAE ZeroPde = {0};
return ZeroPde;
}
return pShwPde->a[iPd];
}
/**
* Gets the pointer to the shadow page directory entry for an address, PAE.
*
* @returns Pointer to the PDE.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(PX86PDEPAE) pgmShwGetPaePDEPtr(PPGMCPU pPGM, RTGCPTR GCPtr)
{
const unsigned iPd = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
PX86PDPAE pPde = pgmShwGetPaePDPtr(pPGM, GCPtr);
AssertReturn(pPde, NULL);
return &pPde->a[iPd];
}
#ifndef IN_RC
/**
* Gets the shadow page map level-4 pointer.
*
* @returns Pointer to the shadow PML4.
* @param pPGM Pointer to the PGM instance data.
*/
DECLINLINE(PX86PML4) pgmShwGetLongModePML4Ptr(PPGMCPU pPGM)
{
return (PX86PML4)PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPGM->CTX_SUFF(pShwPageCR3));
}
/**
* Gets the shadow page map level-4 entry for the specified address.
*
* @returns The entry.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
*/
DECLINLINE(X86PML4E) pgmShwGetLongModePML4E(PPGMCPU pPGM, RTGCPTR GCPtr)
{
const unsigned iPml4 = ((RTGCUINTPTR64)GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
PX86PML4 pShwPml4 = pgmShwGetLongModePML4Ptr(pPGM);
if (!pShwPml4)
{
X86PML4E ZeroPml4e = {0};
return ZeroPml4e;
}
return pShwPml4->a[iPml4];
}
/**
* Gets the pointer to the specified shadow page map level-4 entry.
*
* @returns The entry.
* @param pPGM Pointer to the PGM instance data.
* @param iPml4 The PML4 index.
*/
DECLINLINE(PX86PML4E) pgmShwGetLongModePML4EPtr(PPGMCPU pPGM, unsigned int iPml4)
{
PX86PML4 pShwPml4 = pgmShwGetLongModePML4Ptr(pPGM);
if (!pShwPml4)
return NULL;
return &pShwPml4->a[iPml4];
}
/**
* Gets the GUEST page directory pointer for the specified address.
*
* @returns The page directory in question.
* @returns NULL if the page directory is not present or on an invalid page.
* @param pPGM Pointer to the PGM instance data.
* @param GCPtr The address.
* @param piPD Receives the index into the returned page directory
*/
DECLINLINE(PX86PDPAE) pgmGstGetLongModePDPtr(PPGMCPU pPGM, RTGCPTR64 GCPtr, unsigned *piPD)
{
PCX86PML4 pGuestPml4 = pgmGstGetLongModePML4Ptr(pPGM);
const unsigned iPml4 = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
if (pGuestPml4->a[iPml4].n.u1Present)
{
PCX86PDPT pPdptTemp;
int rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pGuestPml4->a[iPml4].u & X86_PML4E_PG_MASK, &pPdptTemp);
AssertRCReturn(rc, NULL);
const unsigned iPdpt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
if (pPdptTemp->a[iPdpt].n.u1Present)
{
PX86PDPAE pPD;
rc = PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, pPdptTemp->a[iPdpt].u & X86_PDPE_PG_MASK, &pPD);
AssertRCReturn(rc, NULL);
*piPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
return pPD;
}
}
return NULL;
}
#endif /* !IN_RC */
/**
* Gets the page state for a physical handler.
*
* @returns The physical handler page state.
* @param pCur The physical handler in question.
*/
DECLINLINE(unsigned) pgmHandlerPhysicalCalcState(PPGMPHYSHANDLER pCur)
{
switch (pCur->enmType)
{
case PGMPHYSHANDLERTYPE_PHYSICAL_WRITE:
return PGM_PAGE_HNDL_PHYS_STATE_WRITE;
case PGMPHYSHANDLERTYPE_MMIO:
case PGMPHYSHANDLERTYPE_PHYSICAL_ALL:
return PGM_PAGE_HNDL_PHYS_STATE_ALL;
default:
AssertFatalMsgFailed(("Invalid type %d\n", pCur->enmType));
}
}
/**
* Gets the page state for a virtual handler.
*
* @returns The virtual handler page state.
* @param pCur The virtual handler in question.
* @remarks This should never be used on a hypervisor access handler.
*/
DECLINLINE(unsigned) pgmHandlerVirtualCalcState(PPGMVIRTHANDLER pCur)
{
switch (pCur->enmType)
{
case PGMVIRTHANDLERTYPE_WRITE:
return PGM_PAGE_HNDL_VIRT_STATE_WRITE;
case PGMVIRTHANDLERTYPE_ALL:
return PGM_PAGE_HNDL_VIRT_STATE_ALL;
default:
AssertFatalMsgFailed(("Invalid type %d\n", pCur->enmType));
}
}
/**
* Clears one physical page of a virtual handler
*
* @param pPGM Pointer to the PGM instance.
* @param pCur Virtual handler structure
* @param iPage Physical page index
*
* @remark Only used when PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL is being set, so no
* need to care about other handlers in the same page.
*/
DECLINLINE(void) pgmHandlerVirtualClearPage(PPGM pPGM, PPGMVIRTHANDLER pCur, unsigned iPage)
{
const PPGMPHYS2VIRTHANDLER pPhys2Virt = &pCur->aPhysToVirt[iPage];
/*
* Remove the node from the tree (it's supposed to be in the tree if we get here!).
*/
#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
AssertReleaseMsg(pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_IN_TREE,
("pPhys2Virt=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias));
#endif
if (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_IS_HEAD)
{
/* We're the head of the alias chain. */
PPGMPHYS2VIRTHANDLER pRemove = (PPGMPHYS2VIRTHANDLER)RTAvlroGCPhysRemove(&pPGM->CTX_SUFF(pTrees)->PhysToVirtHandlers, pPhys2Virt->Core.Key); NOREF(pRemove);
#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
AssertReleaseMsg(pRemove != NULL,
("pPhys2Virt=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias));
AssertReleaseMsg(pRemove == pPhys2Virt,
("wanted: pPhys2Virt=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
" got: pRemove=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias,
pRemove, pRemove->Core.Key, pRemove->Core.KeyLast, pRemove->offVirtHandler, pRemove->offNextAlias));
#endif
if (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
{
/* Insert the next list in the alias chain into the tree. */
PPGMPHYS2VIRTHANDLER pNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPhys2Virt + (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
AssertReleaseMsg(pNext->offNextAlias & PGMPHYS2VIRTHANDLER_IN_TREE,
("pNext=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pNext, pNext->Core.Key, pNext->Core.KeyLast, pNext->offVirtHandler, pNext->offNextAlias));
#endif
pNext->offNextAlias |= PGMPHYS2VIRTHANDLER_IS_HEAD;
bool fRc = RTAvlroGCPhysInsert(&pPGM->CTX_SUFF(pTrees)->PhysToVirtHandlers, &pNext->Core);
AssertRelease(fRc);
}
}
else
{
/* Locate the previous node in the alias chain. */
PPGMPHYS2VIRTHANDLER pPrev = (PPGMPHYS2VIRTHANDLER)RTAvlroGCPhysGet(&pPGM->CTX_SUFF(pTrees)->PhysToVirtHandlers, pPhys2Virt->Core.Key);
#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
AssertReleaseMsg(pPrev != pPhys2Virt,
("pPhys2Virt=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32} pPrev=%p\n",
pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias, pPrev));
#endif
for (;;)
{
PPGMPHYS2VIRTHANDLER pNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPrev + (pPrev->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
if (pNext == pPhys2Virt)
{
/* unlink. */
LogFlow(("pgmHandlerVirtualClearPage: removed %p:{.offNextAlias=%#RX32} from alias chain. prev %p:{.offNextAlias=%#RX32} [%RGp-%RGp]\n",
pPhys2Virt, pPhys2Virt->offNextAlias, pPrev, pPrev->offNextAlias, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast));
if (!(pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
pPrev->offNextAlias &= ~PGMPHYS2VIRTHANDLER_OFF_MASK;
else
{
PPGMPHYS2VIRTHANDLER pNewNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPhys2Virt + (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
pPrev->offNextAlias = ((intptr_t)pNewNext - (intptr_t)pPrev)
| (pPrev->offNextAlias & ~PGMPHYS2VIRTHANDLER_OFF_MASK);
}
break;
}
/* next */
if (pNext == pPrev)
{
#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
AssertReleaseMsg(pNext != pPrev,
("pPhys2Virt=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32} pPrev=%p\n",
pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias, pPrev));
#endif
break;
}
pPrev = pNext;
}
}
Log2(("PHYS2VIRT: Removing %RGp-%RGp %#RX32 %s\n",
pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offNextAlias, R3STRING(pCur->pszDesc)));
pPhys2Virt->offNextAlias = 0;
pPhys2Virt->Core.KeyLast = NIL_RTGCPHYS; /* require reinsert */
/*
* Clear the ram flags for this page.
*/
PPGMPAGE pPage = pgmPhysGetPage(pPGM, pPhys2Virt->Core.Key);
AssertReturnVoid(pPage);
PGM_PAGE_SET_HNDL_VIRT_STATE(pPage, PGM_PAGE_HNDL_VIRT_STATE_NONE);
}
/**
* Internal worker for finding a 'in-use' shadow page give by it's physical address.
*
* @returns Pointer to the shadow page structure.
* @param pPool The pool.
* @param idx The pool page index.
*/
DECLINLINE(PPGMPOOLPAGE) pgmPoolGetPageByIdx(PPGMPOOL pPool, unsigned idx)
{
AssertFatalMsg(idx >= PGMPOOL_IDX_FIRST && idx < pPool->cCurPages, ("idx=%d\n", idx));
return &pPool->aPages[idx];
}
#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
/**
* Clear references to guest physical memory.
*
* @param pPool The pool.
* @param pPoolPage The pool page.
* @param pPhysPage The physical guest page tracking structure.
*/
DECLINLINE(void) pgmTrackDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPoolPage, PPGMPAGE pPhysPage)
{
/*
* Just deal with the simple case here.
*/
# ifdef LOG_ENABLED
const unsigned uOrg = PGM_PAGE_GET_TRACKING(pPhysPage);
# endif
const unsigned cRefs = PGM_PAGE_GET_TD_CREFS(pPhysPage);
if (cRefs == 1)
{
Assert(pPoolPage->idx == PGM_PAGE_GET_TD_IDX(pPhysPage));
PGM_PAGE_SET_TRACKING(pPhysPage, 0);
}
else
pgmPoolTrackPhysExtDerefGCPhys(pPool, pPoolPage, pPhysPage);
Log2(("pgmTrackDerefGCPhys: %x -> %x pPhysPage=%R[pgmpage]\n", uOrg, PGM_PAGE_GET_TRACKING(pPhysPage), pPhysPage ));
}
#endif /* PGMPOOL_WITH_GCPHYS_TRACKING */
#ifdef PGMPOOL_WITH_CACHE
/**
* Moves the page to the head of the age list.
*
* This is done when the cached page is used in one way or another.
*
* @param pPool The pool.
* @param pPage The cached page.
*/
DECLINLINE(void) pgmPoolCacheUsed(PPGMPOOL pPool, PPGMPOOLPAGE pPage)
{
PVM pVM = pPool->CTX_SUFF(pVM);
pgmLock(pVM);
/*
* Move to the head of the age list.
*/
if (pPage->iAgePrev != NIL_PGMPOOL_IDX)
{
/* unlink */
pPool->aPages[pPage->iAgePrev].iAgeNext = pPage->iAgeNext;
if (pPage->iAgeNext != NIL_PGMPOOL_IDX)
pPool->aPages[pPage->iAgeNext].iAgePrev = pPage->iAgePrev;
else
pPool->iAgeTail = pPage->iAgePrev;
/* insert at head */
pPage->iAgePrev = NIL_PGMPOOL_IDX;
pPage->iAgeNext = pPool->iAgeHead;
Assert(pPage->iAgeNext != NIL_PGMPOOL_IDX); /* we would've already been head then */
pPool->iAgeHead = pPage->idx;
pPool->aPages[pPage->iAgeNext].iAgePrev = pPage->idx;
}
pgmUnlock(pVM);
}
#endif /* PGMPOOL_WITH_CACHE */
/**
* Locks a page to prevent flushing (important for cr3 root pages or shadow pae pd pages).
*
* @param pVM VM Handle.
* @param pPage PGM pool page
*/
DECLINLINE(void) pgmPoolLockPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage)
{
Assert(PGMIsLockOwner(pPool->CTX_SUFF(pVM)));
ASMAtomicIncU32(&pPage->cLocked);
}
/**
* Unlocks a page to allow flushing again
*
* @param pVM VM Handle.
* @param pPage PGM pool page
*/
DECLINLINE(void) pgmPoolUnlockPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage)
{
Assert(PGMIsLockOwner(pPool->CTX_SUFF(pVM)));
Assert(pPage->cLocked);
ASMAtomicDecU32(&pPage->cLocked);
}
/**
* Checks if the page is locked (e.g. the active CR3 or one of the four PDs of a PAE PDPT)
*
* @returns VBox status code.
* @param pPage PGM pool page
*/
DECLINLINE(bool) pgmPoolIsPageLocked(PPGM pPGM, PPGMPOOLPAGE pPage)
{
if (pPage->cLocked)
{
LogFlow(("pgmPoolIsPageLocked found root page %d\n", pPage->enmKind));
if (pPage->cModifications)
pPage->cModifications = 1; /* reset counter (can't use 0, or else it will be reinserted in the modified list) */
return true;
}
return false;
}
/**
* Tells if mappings are to be put into the shadow page table or not
*
* @returns boolean result
* @param pVM VM handle.
*/
DECLINLINE(bool) pgmMapAreMappingsEnabled(PPGM pPGM)
{
#ifdef IN_RING0
/* There are no mappings in VT-x and AMD-V mode. */
Assert(pPGM->fDisableMappings);
return false;
#else
return !pPGM->fDisableMappings;
#endif
}
/** @} */
#endif