VirtualBox

source: vbox/trunk/src/VBox/VMM/include/PGMInternal.h@ 91271

Last change on this file since 91271 was 91271, checked in by vboxsync, 3 years ago

VMM: bugref:10092 Moved the PAE PDPTEs out of PGM into CPUMCTX.
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  • Property svn:keywords set to Id Revision
File size: 173.9 KB
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1/* $Id: PGMInternal.h 91271 2021-09-16 07:42:37Z vboxsync $ */
2/** @file
3 * PGM - Internal header file.
4 */
5
6/*
7 * Copyright (C) 2006-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 */
17
18#ifndef VMM_INCLUDED_SRC_include_PGMInternal_h
19#define VMM_INCLUDED_SRC_include_PGMInternal_h
20#ifndef RT_WITHOUT_PRAGMA_ONCE
21# pragma once
22#endif
23
24#include <VBox/cdefs.h>
25#include <VBox/types.h>
26#include <VBox/err.h>
27#include <VBox/dbg.h>
28#include <VBox/vmm/stam.h>
29#include <VBox/param.h>
30#include <VBox/vmm/vmm.h>
31#include <VBox/vmm/mm.h>
32#include <VBox/vmm/pdmcritsect.h>
33#include <VBox/vmm/pdmapi.h>
34#include <VBox/dis.h>
35#include <VBox/vmm/dbgf.h>
36#include <VBox/log.h>
37#include <VBox/vmm/gmm.h>
38#include <VBox/vmm/hm.h>
39#include <VBox/vmm/hm_vmx.h>
40#include <iprt/asm.h>
41#include <iprt/assert.h>
42#include <iprt/avl.h>
43#include <iprt/critsect.h>
44#include <iprt/list-off32.h>
45#include <iprt/sha.h>
46
47
48
49/** @defgroup grp_pgm_int Internals
50 * @ingroup grp_pgm
51 * @internal
52 * @{
53 */
54
55
56/** @name PGM Compile Time Config
57 * @{
58 */
59
60/**
61 * Indicates that there are no guest mappings in the shadow tables.
62 *
63 * Note! In ring-3 the macro is also used to exclude the managment of the
64 * intermediate context page tables. On 32-bit systems we use the intermediate
65 * context to support 64-bit guest execution. Thus, we cannot fully make it
66 * without mappings there even when VBOX_WITH_RAW_MODE is not defined.
67 *
68 * In raw-mode context there are by design always guest mappings (the code is
69 * executed from one), while in ring-0 there are none at all. Neither context
70 * manages the page tables for intermediate switcher context, that's all done in
71 * ring-3.
72 *
73 * Update 6.1: It is always defined now, in pgm.h
74 */
75#if defined(IN_RING0) \
76 || ( !defined(VBOX_WITH_RAW_MODE) \
77 && ( HC_ARCH_BITS != 32 \
78 || !defined(VBOX_WITH_64_BITS_GUESTS) \
79 ) \
80 )
81# undef PGM_WITHOUT_MAPPINGS
82# define PGM_WITHOUT_MAPPINGS
83#endif
84
85/**
86 * Check and skip global PDEs for non-global flushes
87 */
88#define PGM_SKIP_GLOBAL_PAGEDIRS_ON_NONGLOBAL_FLUSH
89
90/**
91 * Optimization for PAE page tables that are modified often
92 */
93//#if 0 /* disabled again while debugging */
94#define PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
95//#endif
96
97/**
98 * Large page support enabled only on 64 bits hosts; applies to nested paging only.
99 */
100#define PGM_WITH_LARGE_PAGES
101
102/**
103 * Enables optimizations for MMIO handlers that exploits X86_TRAP_PF_RSVD and
104 * VMX_EXIT_EPT_MISCONFIG.
105 */
106#define PGM_WITH_MMIO_OPTIMIZATIONS
107
108/**
109 * Sync N pages instead of a whole page table
110 */
111#define PGM_SYNC_N_PAGES
112
113/**
114 * Number of pages to sync during a page fault
115 *
116 * When PGMPOOL_WITH_GCPHYS_TRACKING is enabled using high values here
117 * causes a lot of unnecessary extents and also is slower than taking more \#PFs.
118 *
119 * Note that \#PFs are much more expensive in the VT-x/AMD-V case due to
120 * world switch overhead, so let's sync more.
121 */
122# ifdef IN_RING0
123/* Chose 32 based on the compile test in @bugref{4219}; 64 shows worse stats.
124 * 32 again shows better results than 16; slightly more overhead in the \#PF handler,
125 * but ~5% fewer faults.
126 */
127# define PGM_SYNC_NR_PAGES 32
128#else
129# define PGM_SYNC_NR_PAGES 8
130#endif
131
132/**
133 * Number of PGMPhysRead/Write cache entries (must be <= sizeof(uint64_t))
134 */
135#define PGM_MAX_PHYSCACHE_ENTRIES 64
136#define PGM_MAX_PHYSCACHE_ENTRIES_MASK (PGM_MAX_PHYSCACHE_ENTRIES-1)
137
138
139/** @def PGMPOOL_CFG_MAX_GROW
140 * The maximum number of pages to add to the pool in one go.
141 */
142#define PGMPOOL_CFG_MAX_GROW (_2M >> PAGE_SHIFT)
143
144/** @def VBOX_STRICT_PGM_HANDLER_VIRTUAL
145 * Enables some extra assertions for virtual handlers (mainly phys2virt related).
146 */
147#ifdef VBOX_STRICT
148# define VBOX_STRICT_PGM_HANDLER_VIRTUAL
149#endif
150
151/** @def VBOX_WITH_NEW_LAZY_PAGE_ALLOC
152 * Enables the experimental lazy page allocation code. */
153#ifdef DOXYGEN_RUNNING
154# define VBOX_WITH_NEW_LAZY_PAGE_ALLOC
155#endif
156
157/** @def VBOX_WITH_REAL_WRITE_MONITORED_PAGES
158 * Enables real write monitoring of pages, i.e. mapping them read-only and
159 * only making them writable when getting a write access \#PF. */
160#define VBOX_WITH_REAL_WRITE_MONITORED_PAGES
161
162/** @} */
163
164
165/** @name PDPT and PML4 flags.
166 * These are placed in the three bits available for system programs in
167 * the PDPT and PML4 entries.
168 * @{ */
169/** The entry is a permanent one and it's must always be present.
170 * Never free such an entry. */
171#define PGM_PLXFLAGS_PERMANENT RT_BIT_64(10)
172#ifndef PGM_WITHOUT_MAPPINGS
173/** Mapping (hypervisor allocated pagetable). */
174# define PGM_PLXFLAGS_MAPPING RT_BIT_64(11)
175# define PGM_PML4_FLAGS RT_BIT_64(11)
176#endif
177/** PGM specific bits in PML4 entries. */
178#define PGM_PML4_FLAGS 0
179/** PGM specific bits in PDPT entries. */
180#ifndef PGM_WITHOUT_MAPPINGS
181# define PGM_PDPT_FLAGS (PGM_PLXFLAGS_PERMANENT | PGM_PLXFLAGS_MAPPING)
182#else
183# define PGM_PDPT_FLAGS (PGM_PLXFLAGS_PERMANENT)
184#endif
185/** @} */
186
187/** @name Page directory flags.
188 * These are placed in the three bits available for system programs in
189 * the page directory entries.
190 * @{ */
191/** Indicates the original entry was a big page.
192 * @remarks This is currently only used for statistics and can be recycled. */
193#define PGM_PDFLAGS_BIG_PAGE RT_BIT_64(9)
194#ifndef PGM_WITHOUT_MAPPINGS
195/** Mapping (hypervisor allocated pagetable). */
196# define PGM_PDFLAGS_MAPPING RT_BIT_64(10)
197#endif
198/** Made read-only to facilitate dirty bit tracking. */
199#define PGM_PDFLAGS_TRACK_DIRTY RT_BIT_64(11)
200/** @} */
201
202/** @name Page flags.
203 * These are placed in the three bits available for system programs in
204 * the page entries.
205 * @{ */
206/** Made read-only to facilitate dirty bit tracking. */
207#define PGM_PTFLAGS_TRACK_DIRTY RT_BIT_64(9)
208
209#ifndef PGM_PTFLAGS_CSAM_VALIDATED
210/** Scanned and approved by CSAM (tm).
211 * NOTE: Must be identical to the one defined in CSAMInternal.h!!
212 * @todo Move PGM_PTFLAGS_* and PGM_PDFLAGS_* to VBox/vmm/pgm.h. */
213#define PGM_PTFLAGS_CSAM_VALIDATED RT_BIT_64(11)
214#endif
215
216/** @} */
217
218/** @name Defines used to indicate the shadow and guest paging in the templates.
219 * @{ */
220#define PGM_TYPE_REAL 1
221#define PGM_TYPE_PROT 2
222#define PGM_TYPE_32BIT 3
223#define PGM_TYPE_PAE 4
224#define PGM_TYPE_AMD64 5
225#define PGM_TYPE_NESTED_32BIT 6
226#define PGM_TYPE_NESTED_PAE 7
227#define PGM_TYPE_NESTED_AMD64 8
228#define PGM_TYPE_EPT 9
229#define PGM_TYPE_NONE 10 /**< Dummy shadow paging mode for NEM. */
230#define PGM_TYPE_END (PGM_TYPE_NONE + 1)
231#define PGM_TYPE_FIRST_SHADOW PGM_TYPE_32BIT /**< The first type used by shadow paging. */
232/** @} */
233
234/** Macro for checking if the guest is using paging.
235 * @param uGstType PGM_TYPE_*
236 * @param uShwType PGM_TYPE_*
237 * @remark ASSUMES certain order of the PGM_TYPE_* values.
238 */
239#define PGM_WITH_PAGING(uGstType, uShwType) \
240 ( (uGstType) >= PGM_TYPE_32BIT \
241 && (uShwType) < PGM_TYPE_NESTED_32BIT)
242
243/** Macro for checking if the guest supports the NX bit.
244 * @param uGstType PGM_TYPE_*
245 * @param uShwType PGM_TYPE_*
246 * @remark ASSUMES certain order of the PGM_TYPE_* values.
247 */
248#define PGM_WITH_NX(uGstType, uShwType) \
249 ( (uGstType) >= PGM_TYPE_PAE \
250 && (uShwType) < PGM_TYPE_NESTED_32BIT)
251
252/** Macro for checking for nested or EPT.
253 * @param uType PGM_TYPE_*
254 */
255#define PGM_TYPE_IS_NESTED(uType) \
256 ( (uType) == PGM_TYPE_NESTED_32BIT \
257 || (uType) == PGM_TYPE_NESTED_PAE \
258 || (uType) == PGM_TYPE_NESTED_AMD64)
259
260/** Macro for checking for nested or EPT.
261 * @param uType PGM_TYPE_*
262 */
263#define PGM_TYPE_IS_NESTED_OR_EPT(uType) \
264 ( (uType) == PGM_TYPE_NESTED_32BIT \
265 || (uType) == PGM_TYPE_NESTED_PAE \
266 || (uType) == PGM_TYPE_NESTED_AMD64 \
267 || (uType) == PGM_TYPE_EPT)
268
269
270
271/** @def PGM_HCPHYS_2_PTR
272 * Maps a HC physical page pool address to a virtual address.
273 *
274 * @returns VBox status code.
275 * @param pVM The cross context VM structure.
276 * @param pVCpu The cross context virtual CPU structure of the calling EMT.
277 * @param HCPhys The HC physical address to map to a virtual one.
278 * @param ppv Where to store the virtual address. No need to cast
279 * this.
280 *
281 * @remark There is no need to assert on the result.
282 */
283#define PGM_HCPHYS_2_PTR(pVM, pVCpu, HCPhys, ppv) pgmPoolHCPhys2Ptr(pVM, HCPhys, (void **)(ppv))
284
285/** @def PGM_GCPHYS_2_PTR_V2
286 * Maps a GC physical page address to a virtual address.
287 *
288 * @returns VBox status code.
289 * @param pVM The cross context VM structure.
290 * @param pVCpu The cross context virtual CPU structure of the calling EMT.
291 * @param GCPhys The GC physical address to map to a virtual one.
292 * @param ppv Where to store the virtual address. No need to cast this.
293 *
294 * @remark Use with care as we don't have so much dynamic mapping space in
295 * ring-0 on 32-bit darwin and in RC.
296 * @remark There is no need to assert on the result.
297 */
298#define PGM_GCPHYS_2_PTR_V2(pVM, pVCpu, GCPhys, ppv) \
299 pgmPhysGCPhys2R3Ptr(pVM, GCPhys, (PRTR3PTR)(ppv)) /** @todo this isn't asserting! */
300
301/** @def PGM_GCPHYS_2_PTR
302 * Maps a GC physical page address to a virtual address.
303 *
304 * @returns VBox status code.
305 * @param pVM The cross context VM structure.
306 * @param GCPhys The GC physical address to map to a virtual one.
307 * @param ppv Where to store the virtual address. No need to cast this.
308 *
309 * @remark Use with care as we don't have so much dynamic mapping space in
310 * ring-0 on 32-bit darwin and in RC.
311 * @remark There is no need to assert on the result.
312 */
313#define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) PGM_GCPHYS_2_PTR_V2(pVM, VMMGetCpu(pVM), GCPhys, ppv)
314
315/** @def PGM_GCPHYS_2_PTR_BY_VMCPU
316 * Maps a GC physical page address to a virtual address.
317 *
318 * @returns VBox status code.
319 * @param pVCpu The cross context virtual CPU structure of the calling EMT.
320 * @param GCPhys The GC physical address to map to a virtual one.
321 * @param ppv Where to store the virtual address. No need to cast this.
322 *
323 * @remark Use with care as we don't have so much dynamic mapping space in
324 * ring-0 on 32-bit darwin and in RC.
325 * @remark There is no need to assert on the result.
326 */
327#define PGM_GCPHYS_2_PTR_BY_VMCPU(pVCpu, GCPhys, ppv) PGM_GCPHYS_2_PTR_V2((pVCpu)->CTX_SUFF(pVM), pVCpu, GCPhys, ppv)
328
329/** @def PGM_GCPHYS_2_PTR_EX
330 * Maps a unaligned GC physical page address to a virtual address.
331 *
332 * @returns VBox status code.
333 * @param pVM The cross context VM structure.
334 * @param GCPhys The GC physical address to map to a virtual one.
335 * @param ppv Where to store the virtual address. No need to cast this.
336 *
337 * @remark Use with care as we don't have so much dynamic mapping space in
338 * ring-0 on 32-bit darwin and in RC.
339 * @remark There is no need to assert on the result.
340 */
341#define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) \
342 pgmPhysGCPhys2R3Ptr(pVM, GCPhys, (PRTR3PTR)(ppv)) /** @todo this isn't asserting! */
343
344/** @def PGM_DYNMAP_UNUSED_HINT
345 * Hints to the dynamic mapping code in RC and R0/darwin that the specified page
346 * is no longer used.
347 *
348 * For best effect only apply this to the page that was mapped most recently.
349 *
350 * @param pVCpu The cross context virtual CPU structure of the calling EMT.
351 * @param pvPage The pool page.
352 */
353#define PGM_DYNMAP_UNUSED_HINT(pVCpu, pvPage) do {} while (0)
354
355/** @def PGM_DYNMAP_UNUSED_HINT_VM
356 * Hints to the dynamic mapping code in RC and R0/darwin that the specified page
357 * is no longer used.
358 *
359 * For best effect only apply this to the page that was mapped most recently.
360 *
361 * @param pVM The cross context VM structure.
362 * @param pvPage The pool page.
363 */
364#define PGM_DYNMAP_UNUSED_HINT_VM(pVM, pvPage) PGM_DYNMAP_UNUSED_HINT(VMMGetCpu(pVM), pvPage)
365
366
367/** @def PGM_INVL_PG
368 * Invalidates a page.
369 *
370 * @param pVCpu The cross context virtual CPU structure.
371 * @param GCVirt The virtual address of the page to invalidate.
372 */
373#ifdef IN_RING0
374# define PGM_INVL_PG(pVCpu, GCVirt) HMInvalidatePage(pVCpu, (RTGCPTR)(GCVirt))
375#elif defined(IN_RING3)
376# define PGM_INVL_PG(pVCpu, GCVirt) HMInvalidatePage(pVCpu, (RTGCPTR)(GCVirt))
377#else
378# error "Not IN_RING0 or IN_RING3!"
379#endif
380
381/** @def PGM_INVL_PG_ALL_VCPU
382 * Invalidates a page on all VCPUs
383 *
384 * @param pVM The cross context VM structure.
385 * @param GCVirt The virtual address of the page to invalidate.
386 */
387#ifdef IN_RING0
388# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) HMInvalidatePageOnAllVCpus(pVM, (RTGCPTR)(GCVirt))
389#else
390# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) HMInvalidatePageOnAllVCpus(pVM, (RTGCPTR)(GCVirt))
391#endif
392
393/** @def PGM_INVL_BIG_PG
394 * Invalidates a 4MB page directory entry.
395 *
396 * @param pVCpu The cross context virtual CPU structure.
397 * @param GCVirt The virtual address within the page directory to invalidate.
398 */
399#ifdef IN_RING0
400# define PGM_INVL_BIG_PG(pVCpu, GCVirt) HMFlushTlb(pVCpu)
401#else
402# define PGM_INVL_BIG_PG(pVCpu, GCVirt) HMFlushTlb(pVCpu)
403#endif
404
405/** @def PGM_INVL_VCPU_TLBS()
406 * Invalidates the TLBs of the specified VCPU
407 *
408 * @param pVCpu The cross context virtual CPU structure.
409 */
410#ifdef IN_RING0
411# define PGM_INVL_VCPU_TLBS(pVCpu) HMFlushTlb(pVCpu)
412#else
413# define PGM_INVL_VCPU_TLBS(pVCpu) HMFlushTlb(pVCpu)
414#endif
415
416/** @def PGM_INVL_ALL_VCPU_TLBS()
417 * Invalidates the TLBs of all VCPUs
418 *
419 * @param pVM The cross context VM structure.
420 */
421#ifdef IN_RING0
422# define PGM_INVL_ALL_VCPU_TLBS(pVM) HMFlushTlbOnAllVCpus(pVM)
423#else
424# define PGM_INVL_ALL_VCPU_TLBS(pVM) HMFlushTlbOnAllVCpus(pVM)
425#endif
426
427
428/** @name Safer Shadow PAE PT/PTE
429 * For helping avoid misinterpreting invalid PAE/AMD64 page table entries as
430 * present.
431 *
432 * @{
433 */
434#if 1
435/**
436 * For making sure that u1Present and X86_PTE_P checks doesn't mistake
437 * invalid entries for present.
438 * @sa X86PTEPAE.
439 */
440typedef union PGMSHWPTEPAE
441{
442 /** Unsigned integer view */
443 X86PGPAEUINT uCareful;
444 /* Not other views. */
445} PGMSHWPTEPAE;
446
447# define PGMSHWPTEPAE_IS_P(Pte) ( ((Pte).uCareful & (X86_PTE_P | X86_PTE_PAE_MBZ_MASK_NX)) == X86_PTE_P )
448# define PGMSHWPTEPAE_IS_RW(Pte) ( !!((Pte).uCareful & X86_PTE_RW))
449# define PGMSHWPTEPAE_IS_US(Pte) ( !!((Pte).uCareful & X86_PTE_US))
450# define PGMSHWPTEPAE_IS_A(Pte) ( !!((Pte).uCareful & X86_PTE_A))
451# define PGMSHWPTEPAE_IS_D(Pte) ( !!((Pte).uCareful & X86_PTE_D))
452# define PGMSHWPTEPAE_IS_TRACK_DIRTY(Pte) ( !!((Pte).uCareful & PGM_PTFLAGS_TRACK_DIRTY) )
453# define PGMSHWPTEPAE_IS_P_RW(Pte) ( ((Pte).uCareful & (X86_PTE_P | X86_PTE_RW | X86_PTE_PAE_MBZ_MASK_NX)) == (X86_PTE_P | X86_PTE_RW) )
454# define PGMSHWPTEPAE_GET_LOG(Pte) ( (Pte).uCareful )
455# define PGMSHWPTEPAE_GET_HCPHYS(Pte) ( (Pte).uCareful & X86_PTE_PAE_PG_MASK )
456# define PGMSHWPTEPAE_GET_U(Pte) ( (Pte).uCareful ) /**< Use with care. */
457# define PGMSHWPTEPAE_SET(Pte, uVal) do { (Pte).uCareful = (uVal); } while (0)
458# define PGMSHWPTEPAE_SET2(Pte, Pte2) do { (Pte).uCareful = (Pte2).uCareful; } while (0)
459# define PGMSHWPTEPAE_ATOMIC_SET(Pte, uVal) do { ASMAtomicWriteU64(&(Pte).uCareful, (uVal)); } while (0)
460# define PGMSHWPTEPAE_ATOMIC_SET2(Pte, Pte2) do { ASMAtomicWriteU64(&(Pte).uCareful, (Pte2).uCareful); } while (0)
461# define PGMSHWPTEPAE_SET_RO(Pte) do { (Pte).uCareful &= ~(X86PGPAEUINT)X86_PTE_RW; } while (0)
462# define PGMSHWPTEPAE_SET_RW(Pte) do { (Pte).uCareful |= X86_PTE_RW; } while (0)
463
464/**
465 * For making sure that u1Present and X86_PTE_P checks doesn't mistake
466 * invalid entries for present.
467 * @sa X86PTPAE.
468 */
469typedef struct PGMSHWPTPAE
470{
471 PGMSHWPTEPAE a[X86_PG_PAE_ENTRIES];
472} PGMSHWPTPAE;
473
474#else
475typedef X86PTEPAE PGMSHWPTEPAE;
476typedef X86PTPAE PGMSHWPTPAE;
477# define PGMSHWPTEPAE_IS_P(Pte) ( (Pte).n.u1Present )
478# define PGMSHWPTEPAE_IS_RW(Pte) ( (Pte).n.u1Write )
479# define PGMSHWPTEPAE_IS_US(Pte) ( (Pte).n.u1User )
480# define PGMSHWPTEPAE_IS_A(Pte) ( (Pte).n.u1Accessed )
481# define PGMSHWPTEPAE_IS_D(Pte) ( (Pte).n.u1Dirty )
482# define PGMSHWPTEPAE_IS_TRACK_DIRTY(Pte) ( !!((Pte).u & PGM_PTFLAGS_TRACK_DIRTY) )
483# define PGMSHWPTEPAE_IS_P_RW(Pte) ( ((Pte).u & (X86_PTE_P | X86_PTE_RW)) == (X86_PTE_P | X86_PTE_RW) )
484# define PGMSHWPTEPAE_GET_LOG(Pte) ( (Pte).u )
485# define PGMSHWPTEPAE_GET_HCPHYS(Pte) ( (Pte).u & X86_PTE_PAE_PG_MASK )
486# define PGMSHWPTEPAE_GET_U(Pte) ( (Pte).u ) /**< Use with care. */
487# define PGMSHWPTEPAE_SET(Pte, uVal) do { (Pte).u = (uVal); } while (0)
488# define PGMSHWPTEPAE_SET2(Pte, Pte2) do { (Pte).u = (Pte2).u; } while (0)
489# define PGMSHWPTEPAE_ATOMIC_SET(Pte, uVal) do { ASMAtomicWriteU64(&(Pte).u, (uVal)); } while (0)
490# define PGMSHWPTEPAE_ATOMIC_SET2(Pte, Pte2) do { ASMAtomicWriteU64(&(Pte).u, (Pte2).u); } while (0)
491# define PGMSHWPTEPAE_SET_RO(Pte) do { (Pte).u &= ~(X86PGPAEUINT)X86_PTE_RW; } while (0)
492# define PGMSHWPTEPAE_SET_RW(Pte) do { (Pte).u |= X86_PTE_RW; } while (0)
493
494#endif
495
496/** Pointer to a shadow PAE PTE. */
497typedef PGMSHWPTEPAE *PPGMSHWPTEPAE;
498/** Pointer to a const shadow PAE PTE. */
499typedef PGMSHWPTEPAE const *PCPGMSHWPTEPAE;
500
501/** Pointer to a shadow PAE page table. */
502typedef PGMSHWPTPAE *PPGMSHWPTPAE;
503/** Pointer to a const shadow PAE page table. */
504typedef PGMSHWPTPAE const *PCPGMSHWPTPAE;
505/** @} */
506
507#ifndef PGM_WITHOUT_MAPPINGS
508
509/** Size of the GCPtrConflict array in PGMMAPPING.
510 * @remarks Must be a power of two. */
511# define PGMMAPPING_CONFLICT_MAX 8
512
513/**
514 * Structure for tracking GC Mappings.
515 *
516 * This structure is used by linked list in both GC and HC.
517 */
518typedef struct PGMMAPPING
519{
520 /** Pointer to next entry. */
521 R3PTRTYPE(struct PGMMAPPING *) pNextR3;
522 /** Pointer to next entry. */
523 R0PTRTYPE(struct PGMMAPPING *) pNextR0;
524 /** Indicate whether this entry is finalized. */
525 bool fFinalized;
526 bool afPadding[7];
527 /** Start Virtual address. */
528 RTGCPTR GCPtr;
529 /** Last Virtual address (inclusive). */
530 RTGCPTR GCPtrLast;
531 /** Range size (bytes). */
532 RTGCPTR cb;
533 /** Pointer to relocation callback function. */
534 R3PTRTYPE(PFNPGMRELOCATE) pfnRelocate;
535 /** User argument to the callback. */
536 R3PTRTYPE(void *) pvUser;
537 /** Mapping description / name. For easing debugging. */
538 R3PTRTYPE(const char *) pszDesc;
539 /** Last 8 addresses that caused conflicts. */
540 RTGCPTR aGCPtrConflicts[PGMMAPPING_CONFLICT_MAX];
541 /** Number of conflicts for this hypervisor mapping. */
542 uint32_t cConflicts;
543 /** Number of page tables. */
544 uint32_t cPTs;
545
546 /** Array of page table mapping data. Each entry
547 * describes one page table. The array can be longer
548 * than the declared length.
549 */
550 struct
551 {
552 /** The HC physical address of the page table. */
553 RTHCPHYS HCPhysPT;
554 /** The HC physical address of the first PAE page table. */
555 RTHCPHYS HCPhysPaePT0;
556 /** The HC physical address of the second PAE page table. */
557 RTHCPHYS HCPhysPaePT1;
558 /** The HC virtual address of the 32-bit page table. */
559 R3PTRTYPE(PX86PT) pPTR3;
560 /** The HC virtual address of the two PAE page table. (i.e 1024 entries instead of 512) */
561 R3PTRTYPE(PPGMSHWPTPAE) paPaePTsR3;
562 /** The R0 virtual address of the 32-bit page table. */
563 R0PTRTYPE(PX86PT) pPTR0;
564 /** The R0 virtual address of the two PAE page table. */
565 R0PTRTYPE(PPGMSHWPTPAE) paPaePTsR0;
566 } aPTs[1];
567} PGMMAPPING;
568/** Pointer to structure for tracking GC Mappings. */
569typedef struct PGMMAPPING *PPGMMAPPING;
570
571#endif /* !PGM_WITHOUT_MAPPINGS */
572
573
574/**
575 * Physical page access handler type registration.
576 */
577typedef struct PGMPHYSHANDLERTYPEINT
578{
579 /** Number of references. */
580 uint32_t volatile cRefs;
581 /** Magic number (PGMPHYSHANDLERTYPEINT_MAGIC). */
582 uint32_t u32Magic;
583 /** Link of handler types anchored in PGMTREES::HeadPhysHandlerTypes. */
584 RTLISTOFF32NODE ListNode;
585 /** The kind of accesses we're handling. */
586 PGMPHYSHANDLERKIND enmKind;
587 /** The PGM_PAGE_HNDL_PHYS_STATE_XXX value corresponding to enmKind. */
588 uint32_t uState;
589 /** Pointer to R3 callback function. */
590 R3PTRTYPE(PFNPGMPHYSHANDLER) pfnHandlerR3;
591 /** Pointer to R0 callback function. */
592 R0PTRTYPE(PFNPGMPHYSHANDLER) pfnHandlerR0;
593 /** Pointer to R0 callback function for \#PFs. */
594 R0PTRTYPE(PFNPGMRZPHYSPFHANDLER) pfnPfHandlerR0;
595 /** Description / Name. For easing debugging. */
596 R3PTRTYPE(const char *) pszDesc;
597} PGMPHYSHANDLERTYPEINT;
598/** Pointer to a physical access handler type registration. */
599typedef PGMPHYSHANDLERTYPEINT *PPGMPHYSHANDLERTYPEINT;
600/** Magic value for the physical handler callbacks (Robert A. Heinlein). */
601#define PGMPHYSHANDLERTYPEINT_MAGIC UINT32_C(0x19070707)
602/** Magic value for the physical handler callbacks. */
603#define PGMPHYSHANDLERTYPEINT_MAGIC_DEAD UINT32_C(0x19880508)
604
605/**
606 * Converts a handle to a pointer.
607 * @returns PPGMPHYSHANDLERTYPEINT
608 * @param a_pVM The cross context VM structure.
609 * @param a_hType Physical access handler type handle.
610 */
611#define PGMPHYSHANDLERTYPEINT_FROM_HANDLE(a_pVM, a_hType) ((PPGMPHYSHANDLERTYPEINT)MMHyperHeapOffsetToPtr(a_pVM, a_hType))
612
613
614/**
615 * Physical page access handler structure.
616 *
617 * This is used to keep track of physical address ranges
618 * which are being monitored in some kind of way.
619 */
620typedef struct PGMPHYSHANDLER
621{
622 AVLROGCPHYSNODECORE Core;
623 /** Number of pages to update. */
624 uint32_t cPages;
625 /** Set if we have pages that have been aliased. */
626 uint32_t cAliasedPages;
627 /** Set if we have pages that have temporarily been disabled. */
628 uint32_t cTmpOffPages;
629 /** Registered handler type handle (heap offset). */
630 PGMPHYSHANDLERTYPE hType;
631 /** User argument for R3 handlers. */
632 R3PTRTYPE(void *) pvUserR3;
633 /** User argument for R0 handlers. */
634 R0PTRTYPE(void *) pvUserR0;
635 /** Description / Name. For easing debugging. */
636 R3PTRTYPE(const char *) pszDesc;
637#ifdef VBOX_WITH_STATISTICS
638 /** Profiling of this handler. */
639 STAMPROFILE Stat;
640#endif
641} PGMPHYSHANDLER;
642/** Pointer to a physical page access handler structure. */
643typedef PGMPHYSHANDLER *PPGMPHYSHANDLER;
644
645/**
646 * Gets the type record for a physical handler (no reference added).
647 * @returns PPGMPHYSHANDLERTYPEINT
648 * @param a_pVM The cross context VM structure.
649 * @param a_pPhysHandler Pointer to the physical handler structure
650 * (PGMPHYSHANDLER).
651 */
652#define PGMPHYSHANDLER_GET_TYPE(a_pVM, a_pPhysHandler) PGMPHYSHANDLERTYPEINT_FROM_HANDLE(a_pVM, (a_pPhysHandler)->hType)
653
654
655/**
656 * A Physical Guest Page tracking structure.
657 *
658 * The format of this structure is complicated because we have to fit a lot
659 * of information into as few bits as possible. The format is also subject
660 * to change (there is one coming up soon). Which means that for we'll be
661 * using PGM_PAGE_GET_*, PGM_PAGE_IS_ and PGM_PAGE_SET_* macros for *all*
662 * accesses to the structure.
663 */
664typedef union PGMPAGE
665{
666 /** Structured view. */
667 struct
668 {
669 /** 1:0 - The physical handler state (PGM_PAGE_HNDL_PHYS_STATE_*). */
670 uint64_t u2HandlerPhysStateY : 2;
671 /** 3:2 - Paging structure needed to map the page
672 * (PGM_PAGE_PDE_TYPE_*). */
673 uint64_t u2PDETypeY : 2;
674 /** 4 - Unused (was used by FTE for dirty tracking). */
675 uint64_t fUnused1 : 1;
676 /** 5 - Flag indicating that a write monitored page was written to
677 * when set. */
678 uint64_t fWrittenToY : 1;
679 /** 7:6 - Unused. */
680 uint64_t u2Unused0 : 2;
681 /** 9:8 - Unused (was used by PGM_PAGE_HNDL_VIRT_STATE_*). */
682 uint64_t u2Unused1 : 2;
683 /** 11:10 - NEM state bits. */
684 uint64_t u2NemStateY : 2;
685 /** 12:48 - The host physical frame number (shift left to get the
686 * address). */
687 uint64_t HCPhysFN : 36;
688 /** 50:48 - The page state. */
689 uint64_t uStateY : 3;
690 /** 51:53 - The page type (PGMPAGETYPE). */
691 uint64_t uTypeY : 3;
692 /** 63:54 - PTE index for usage tracking (page pool). */
693 uint64_t u10PteIdx : 10;
694
695 /** The GMM page ID.
696 * @remarks In the current implementation, MMIO2 and pages aliased to
697 * MMIO2 pages will be exploiting this field to calculate the
698 * ring-3 mapping address corresponding to the page.
699 * Later we may consider including MMIO2 management into GMM. */
700 uint32_t idPage;
701 /** Usage tracking (page pool). */
702 uint16_t u16TrackingY;
703 /** The number of read locks on this page. */
704 uint8_t cReadLocksY;
705 /** The number of write locks on this page. */
706 uint8_t cWriteLocksY;
707 } s;
708
709 /** 64-bit integer view. */
710 uint64_t au64[2];
711 /** 16-bit view. */
712 uint32_t au32[4];
713 /** 16-bit view. */
714 uint16_t au16[8];
715 /** 8-bit view. */
716 uint8_t au8[16];
717} PGMPAGE;
718AssertCompileSize(PGMPAGE, 16);
719/** Pointer to a physical guest page. */
720typedef PGMPAGE *PPGMPAGE;
721/** Pointer to a const physical guest page. */
722typedef const PGMPAGE *PCPGMPAGE;
723/** Pointer to a physical guest page pointer. */
724typedef PPGMPAGE *PPPGMPAGE;
725
726
727/**
728 * Clears the page structure.
729 * @param a_pPage Pointer to the physical guest page tracking structure.
730 */
731#define PGM_PAGE_CLEAR(a_pPage) \
732 do { \
733 (a_pPage)->au64[0] = 0; \
734 (a_pPage)->au64[1] = 0; \
735 } while (0)
736
737/**
738 * Initializes the page structure.
739 * @param a_pPage Pointer to the physical guest page tracking structure.
740 * @param a_HCPhys The host physical address of the page.
741 * @param a_idPage The (GMM) page ID of the page.
742 * @param a_uType The page type (PGMPAGETYPE).
743 * @param a_uState The page state (PGM_PAGE_STATE_XXX).
744 */
745#define PGM_PAGE_INIT(a_pPage, a_HCPhys, a_idPage, a_uType, a_uState) \
746 do { \
747 RTHCPHYS SetHCPhysTmp = (a_HCPhys); \
748 AssertFatal(!(SetHCPhysTmp & ~UINT64_C(0x0000fffffffff000))); \
749 (a_pPage)->au64[0] = SetHCPhysTmp; \
750 (a_pPage)->au64[1] = 0; \
751 (a_pPage)->s.idPage = (a_idPage); \
752 (a_pPage)->s.uStateY = (a_uState); \
753 (a_pPage)->s.uTypeY = (a_uType); \
754 } while (0)
755
756/**
757 * Initializes the page structure of a ZERO page.
758 * @param a_pPage Pointer to the physical guest page tracking structure.
759 * @param a_pVM The VM handle (for getting the zero page address).
760 * @param a_uType The page type (PGMPAGETYPE).
761 */
762#define PGM_PAGE_INIT_ZERO(a_pPage, a_pVM, a_uType) \
763 PGM_PAGE_INIT((a_pPage), (a_pVM)->pgm.s.HCPhysZeroPg, NIL_GMM_PAGEID, (a_uType), PGM_PAGE_STATE_ZERO)
764
765
766/** @name The Page state, PGMPAGE::uStateY.
767 * @{ */
768/** The zero page.
769 * This is a per-VM page that's never ever mapped writable. */
770#define PGM_PAGE_STATE_ZERO 0U
771/** A allocated page.
772 * This is a per-VM page allocated from the page pool (or wherever
773 * we get MMIO2 pages from if the type is MMIO2).
774 */
775#define PGM_PAGE_STATE_ALLOCATED 1U
776/** A allocated page that's being monitored for writes.
777 * The shadow page table mappings are read-only. When a write occurs, the
778 * fWrittenTo member is set, the page remapped as read-write and the state
779 * moved back to allocated. */
780#define PGM_PAGE_STATE_WRITE_MONITORED 2U
781/** The page is shared, aka. copy-on-write.
782 * This is a page that's shared with other VMs. */
783#define PGM_PAGE_STATE_SHARED 3U
784/** The page is ballooned, so no longer available for this VM. */
785#define PGM_PAGE_STATE_BALLOONED 4U
786/** @} */
787
788
789/** Asserts lock ownership in some of the PGM_PAGE_XXX macros. */
790#if defined(VBOX_STRICT) && 0 /** @todo triggers in pgmRZDynMapGCPageV2Inlined */
791# define PGM_PAGE_ASSERT_LOCK(a_pVM) PGM_LOCK_ASSERT_OWNER(a_pVM)
792#else
793# define PGM_PAGE_ASSERT_LOCK(a_pVM) do { } while (0)
794#endif
795
796/**
797 * Gets the page state.
798 * @returns page state (PGM_PAGE_STATE_*).
799 * @param a_pPage Pointer to the physical guest page tracking structure.
800 *
801 * @remarks See PGM_PAGE_GET_HCPHYS_NA for remarks about GCC and strict
802 * builds.
803 */
804#define PGM_PAGE_GET_STATE_NA(a_pPage) ( (a_pPage)->s.uStateY )
805#if defined(__GNUC__) && defined(VBOX_STRICT)
806# define PGM_PAGE_GET_STATE(a_pPage) __extension__ ({ PGM_PAGE_ASSERT_LOCK(pVM); PGM_PAGE_GET_STATE_NA(a_pPage); })
807#else
808# define PGM_PAGE_GET_STATE PGM_PAGE_GET_STATE_NA
809#endif
810
811/**
812 * Sets the page state.
813 * @param a_pVM The VM handle, only used for lock ownership assertions.
814 * @param a_pPage Pointer to the physical guest page tracking structure.
815 * @param a_uState The new page state.
816 */
817#define PGM_PAGE_SET_STATE(a_pVM, a_pPage, a_uState) \
818 do { (a_pPage)->s.uStateY = (a_uState); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
819
820
821/**
822 * Gets the host physical address of the guest page.
823 * @returns host physical address (RTHCPHYS).
824 * @param a_pPage Pointer to the physical guest page tracking structure.
825 *
826 * @remarks In strict builds on gcc platforms, this macro will make some ugly
827 * assumption about a valid pVM variable/parameter being in the
828 * current context. It will use this pVM variable to assert that the
829 * PGM lock is held. Use the PGM_PAGE_GET_HCPHYS_NA in contexts where
830 * pVM is not around.
831 */
832#if 0
833# define PGM_PAGE_GET_HCPHYS_NA(a_pPage) ( (a_pPage)->s.HCPhysFN << 12 )
834# define PGM_PAGE_GET_HCPHYS PGM_PAGE_GET_HCPHYS_NA
835#else
836# define PGM_PAGE_GET_HCPHYS_NA(a_pPage) ( (a_pPage)->au64[0] & UINT64_C(0x0000fffffffff000) )
837# if defined(__GNUC__) && defined(VBOX_STRICT)
838# define PGM_PAGE_GET_HCPHYS(a_pPage) __extension__ ({ PGM_PAGE_ASSERT_LOCK(pVM); PGM_PAGE_GET_HCPHYS_NA(a_pPage); })
839# else
840# define PGM_PAGE_GET_HCPHYS PGM_PAGE_GET_HCPHYS_NA
841# endif
842#endif
843
844/**
845 * Sets the host physical address of the guest page.
846 *
847 * @param a_pVM The VM handle, only used for lock ownership assertions.
848 * @param a_pPage Pointer to the physical guest page tracking structure.
849 * @param a_HCPhys The new host physical address.
850 */
851#define PGM_PAGE_SET_HCPHYS(a_pVM, a_pPage, a_HCPhys) \
852 do { \
853 RTHCPHYS const SetHCPhysTmp = (a_HCPhys); \
854 AssertFatal(!(SetHCPhysTmp & ~UINT64_C(0x0000fffffffff000))); \
855 (a_pPage)->s.HCPhysFN = SetHCPhysTmp >> 12; \
856 PGM_PAGE_ASSERT_LOCK(a_pVM); \
857 } while (0)
858
859/**
860 * Get the Page ID.
861 * @returns The Page ID; NIL_GMM_PAGEID if it's a ZERO page.
862 * @param a_pPage Pointer to the physical guest page tracking structure.
863 */
864#define PGM_PAGE_GET_PAGEID(a_pPage) ( (uint32_t)(a_pPage)->s.idPage )
865
866/**
867 * Sets the Page ID.
868 * @param a_pVM The VM handle, only used for lock ownership assertions.
869 * @param a_pPage Pointer to the physical guest page tracking structure.
870 * @param a_idPage The new page ID.
871 */
872#define PGM_PAGE_SET_PAGEID(a_pVM, a_pPage, a_idPage) \
873 do { \
874 (a_pPage)->s.idPage = (a_idPage); \
875 PGM_PAGE_ASSERT_LOCK(a_pVM); \
876 } while (0)
877
878/**
879 * Get the Chunk ID.
880 * @returns The Chunk ID; NIL_GMM_CHUNKID if it's a ZERO page.
881 * @param a_pPage Pointer to the physical guest page tracking structure.
882 */
883#define PGM_PAGE_GET_CHUNKID(a_pPage) ( PGM_PAGE_GET_PAGEID(a_pPage) >> GMM_CHUNKID_SHIFT )
884
885/**
886 * Get the index of the page within the allocation chunk.
887 * @returns The page index.
888 * @param a_pPage Pointer to the physical guest page tracking structure.
889 */
890#define PGM_PAGE_GET_PAGE_IN_CHUNK(a_pPage) ( PGM_PAGE_GET_PAGEID(a_pPage) & GMM_PAGEID_IDX_MASK )
891
892/**
893 * Gets the page type.
894 * @returns The page type.
895 * @param a_pPage Pointer to the physical guest page tracking structure.
896 *
897 * @remarks See PGM_PAGE_GET_HCPHYS_NA for remarks about GCC and strict
898 * builds.
899 */
900#define PGM_PAGE_GET_TYPE_NA(a_pPage) ( (a_pPage)->s.uTypeY )
901#if defined(__GNUC__) && defined(VBOX_STRICT)
902# define PGM_PAGE_GET_TYPE(a_pPage) __extension__ ({ PGM_PAGE_ASSERT_LOCK(pVM); PGM_PAGE_GET_TYPE_NA(a_pPage); })
903#else
904# define PGM_PAGE_GET_TYPE PGM_PAGE_GET_TYPE_NA
905#endif
906
907/**
908 * Sets the page type.
909 *
910 * @param a_pVM The VM handle, only used for lock ownership assertions.
911 * @param a_pPage Pointer to the physical guest page tracking structure.
912 * @param a_enmType The new page type (PGMPAGETYPE).
913 */
914#define PGM_PAGE_SET_TYPE(a_pVM, a_pPage, a_enmType) \
915 do { (a_pPage)->s.uTypeY = (a_enmType); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
916
917/**
918 * Gets the page table index
919 * @returns The page table index.
920 * @param a_pPage Pointer to the physical guest page tracking structure.
921 */
922#define PGM_PAGE_GET_PTE_INDEX(a_pPage) ( (a_pPage)->s.u10PteIdx )
923
924/**
925 * Sets the page table index.
926 * @param a_pVM The VM handle, only used for lock ownership assertions.
927 * @param a_pPage Pointer to the physical guest page tracking structure.
928 * @param a_iPte New page table index.
929 */
930#define PGM_PAGE_SET_PTE_INDEX(a_pVM, a_pPage, a_iPte) \
931 do { (a_pPage)->s.u10PteIdx = (a_iPte); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
932
933/**
934 * Checks if the page is marked for MMIO, no MMIO2 aliasing.
935 * @returns true/false.
936 * @param a_pPage Pointer to the physical guest page tracking structure.
937 */
938#define PGM_PAGE_IS_MMIO(a_pPage) ( (a_pPage)->s.uTypeY == PGMPAGETYPE_MMIO )
939
940/**
941 * Checks if the page is marked for MMIO, including both aliases.
942 * @returns true/false.
943 * @param a_pPage Pointer to the physical guest page tracking structure.
944 */
945#define PGM_PAGE_IS_MMIO_OR_ALIAS(a_pPage) ( (a_pPage)->s.uTypeY == PGMPAGETYPE_MMIO \
946 || (a_pPage)->s.uTypeY == PGMPAGETYPE_MMIO2_ALIAS_MMIO \
947 || (a_pPage)->s.uTypeY == PGMPAGETYPE_SPECIAL_ALIAS_MMIO \
948 )
949
950/**
951 * Checks if the page is marked for MMIO, including special aliases.
952 * @returns true/false.
953 * @param a_pPage Pointer to the physical guest page tracking structure.
954 */
955#define PGM_PAGE_IS_MMIO_OR_SPECIAL_ALIAS(a_pPage) ( (a_pPage)->s.uTypeY == PGMPAGETYPE_MMIO \
956 || (a_pPage)->s.uTypeY == PGMPAGETYPE_SPECIAL_ALIAS_MMIO )
957
958/**
959 * Checks if the page is a special aliased MMIO page.
960 * @returns true/false.
961 * @param a_pPage Pointer to the physical guest page tracking structure.
962 */
963#define PGM_PAGE_IS_SPECIAL_ALIAS_MMIO(a_pPage) ( (a_pPage)->s.uTypeY == PGMPAGETYPE_SPECIAL_ALIAS_MMIO )
964
965/**
966 * Checks if the page is backed by the ZERO page.
967 * @returns true/false.
968 * @param a_pPage Pointer to the physical guest page tracking structure.
969 */
970#define PGM_PAGE_IS_ZERO(a_pPage) ( (a_pPage)->s.uStateY == PGM_PAGE_STATE_ZERO )
971
972/**
973 * Checks if the page is backed by a SHARED page.
974 * @returns true/false.
975 * @param a_pPage Pointer to the physical guest page tracking structure.
976 */
977#define PGM_PAGE_IS_SHARED(a_pPage) ( (a_pPage)->s.uStateY == PGM_PAGE_STATE_SHARED )
978
979/**
980 * Checks if the page is ballooned.
981 * @returns true/false.
982 * @param a_pPage Pointer to the physical guest page tracking structure.
983 */
984#define PGM_PAGE_IS_BALLOONED(a_pPage) ( (a_pPage)->s.uStateY == PGM_PAGE_STATE_BALLOONED )
985
986/**
987 * Checks if the page is allocated.
988 * @returns true/false.
989 * @param a_pPage Pointer to the physical guest page tracking structure.
990 */
991#define PGM_PAGE_IS_ALLOCATED(a_pPage) ( (a_pPage)->s.uStateY == PGM_PAGE_STATE_ALLOCATED )
992
993/**
994 * Marks the page as written to (for GMM change monitoring).
995 * @param a_pVM The VM handle, only used for lock ownership assertions.
996 * @param a_pPage Pointer to the physical guest page tracking structure.
997 */
998#define PGM_PAGE_SET_WRITTEN_TO(a_pVM, a_pPage) \
999 do { (a_pPage)->s.fWrittenToY = 1; PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
1000
1001/**
1002 * Clears the written-to indicator.
1003 * @param a_pVM The VM handle, only used for lock ownership assertions.
1004 * @param a_pPage Pointer to the physical guest page tracking structure.
1005 */
1006#define PGM_PAGE_CLEAR_WRITTEN_TO(a_pVM, a_pPage) \
1007 do { (a_pPage)->s.fWrittenToY = 0; PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
1008
1009/**
1010 * Checks if the page was marked as written-to.
1011 * @returns true/false.
1012 * @param a_pPage Pointer to the physical guest page tracking structure.
1013 */
1014#define PGM_PAGE_IS_WRITTEN_TO(a_pPage) ( (a_pPage)->s.fWrittenToY )
1015
1016
1017/** @name PT usage values (PGMPAGE::u2PDEType).
1018 *
1019 * @{ */
1020/** Either as a PT or PDE. */
1021#define PGM_PAGE_PDE_TYPE_DONTCARE 0
1022/** Must use a page table to map the range. */
1023#define PGM_PAGE_PDE_TYPE_PT 1
1024/** Can use a page directory entry to map the continuous range. */
1025#define PGM_PAGE_PDE_TYPE_PDE 2
1026/** Can use a page directory entry to map the continuous range - temporarily disabled (by page monitoring). */
1027#define PGM_PAGE_PDE_TYPE_PDE_DISABLED 3
1028/** @} */
1029
1030/**
1031 * Set the PDE type of the page
1032 * @param a_pVM The VM handle, only used for lock ownership assertions.
1033 * @param a_pPage Pointer to the physical guest page tracking structure.
1034 * @param a_uType PGM_PAGE_PDE_TYPE_*.
1035 */
1036#define PGM_PAGE_SET_PDE_TYPE(a_pVM, a_pPage, a_uType) \
1037 do { (a_pPage)->s.u2PDETypeY = (a_uType); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
1038
1039/**
1040 * Checks if the page was marked being part of a large page
1041 * @returns true/false.
1042 * @param a_pPage Pointer to the physical guest page tracking structure.
1043 */
1044#define PGM_PAGE_GET_PDE_TYPE(a_pPage) ( (a_pPage)->s.u2PDETypeY )
1045
1046/** @name Physical Access Handler State values (PGMPAGE::u2HandlerPhysStateY).
1047 *
1048 * @remarks The values are assigned in order of priority, so we can calculate
1049 * the correct state for a page with different handlers installed.
1050 * @{ */
1051/** No handler installed. */
1052#define PGM_PAGE_HNDL_PHYS_STATE_NONE 0
1053/** Monitoring is temporarily disabled. */
1054#define PGM_PAGE_HNDL_PHYS_STATE_DISABLED 1
1055/** Write access is monitored. */
1056#define PGM_PAGE_HNDL_PHYS_STATE_WRITE 2
1057/** All access is monitored. */
1058#define PGM_PAGE_HNDL_PHYS_STATE_ALL 3
1059/** @} */
1060
1061/**
1062 * Gets the physical access handler state of a page.
1063 * @returns PGM_PAGE_HNDL_PHYS_STATE_* value.
1064 * @param a_pPage Pointer to the physical guest page tracking structure.
1065 */
1066#define PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) ( (a_pPage)->s.u2HandlerPhysStateY )
1067
1068/**
1069 * Sets the physical access handler state of a page.
1070 * @param a_pPage Pointer to the physical guest page tracking structure.
1071 * @param a_uState The new state value.
1072 */
1073#define PGM_PAGE_SET_HNDL_PHYS_STATE(a_pPage, a_uState) \
1074 do { (a_pPage)->s.u2HandlerPhysStateY = (a_uState); } while (0)
1075
1076/**
1077 * Checks if the page has any physical access handlers, including temporarily disabled ones.
1078 * @returns true/false
1079 * @param a_pPage Pointer to the physical guest page tracking structure.
1080 */
1081#define PGM_PAGE_HAS_ANY_PHYSICAL_HANDLERS(a_pPage) \
1082 ( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) != PGM_PAGE_HNDL_PHYS_STATE_NONE )
1083
1084/**
1085 * Checks if the page has any active physical access handlers.
1086 * @returns true/false
1087 * @param a_pPage Pointer to the physical guest page tracking structure.
1088 */
1089#define PGM_PAGE_HAS_ACTIVE_PHYSICAL_HANDLERS(a_pPage) \
1090 ( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) >= PGM_PAGE_HNDL_PHYS_STATE_WRITE )
1091
1092/**
1093 * Checks if the page has any access handlers, including temporarily disabled ones.
1094 * @returns true/false
1095 * @param a_pPage Pointer to the physical guest page tracking structure.
1096 */
1097#define PGM_PAGE_HAS_ANY_HANDLERS(a_pPage) \
1098 ( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) != PGM_PAGE_HNDL_PHYS_STATE_NONE )
1099
1100/**
1101 * Checks if the page has any active access handlers.
1102 * @returns true/false
1103 * @param a_pPage Pointer to the physical guest page tracking structure.
1104 */
1105#define PGM_PAGE_HAS_ACTIVE_HANDLERS(a_pPage) \
1106 (PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) >= PGM_PAGE_HNDL_PHYS_STATE_WRITE )
1107
1108/**
1109 * Checks if the page has any active access handlers catching all accesses.
1110 * @returns true/false
1111 * @param a_pPage Pointer to the physical guest page tracking structure.
1112 */
1113#define PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(a_pPage) \
1114 ( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) == PGM_PAGE_HNDL_PHYS_STATE_ALL )
1115
1116
1117/** @def PGM_PAGE_GET_TRACKING
1118 * Gets the packed shadow page pool tracking data associated with a guest page.
1119 * @returns uint16_t containing the data.
1120 * @param a_pPage Pointer to the physical guest page tracking structure.
1121 */
1122#define PGM_PAGE_GET_TRACKING_NA(a_pPage) ( (a_pPage)->s.u16TrackingY )
1123#if defined(__GNUC__) && defined(VBOX_STRICT)
1124# define PGM_PAGE_GET_TRACKING(a_pPage) __extension__ ({ PGM_PAGE_ASSERT_LOCK(pVM); PGM_PAGE_GET_TRACKING_NA(a_pPage); })
1125#else
1126# define PGM_PAGE_GET_TRACKING PGM_PAGE_GET_TRACKING_NA
1127#endif
1128
1129/** @def PGM_PAGE_SET_TRACKING
1130 * Sets the packed shadow page pool tracking data associated with a guest page.
1131 * @param a_pVM The VM handle, only used for lock ownership assertions.
1132 * @param a_pPage Pointer to the physical guest page tracking structure.
1133 * @param a_u16TrackingData The tracking data to store.
1134 */
1135#define PGM_PAGE_SET_TRACKING(a_pVM, a_pPage, a_u16TrackingData) \
1136 do { (a_pPage)->s.u16TrackingY = (a_u16TrackingData); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
1137
1138/** @def PGM_PAGE_GET_TD_CREFS
1139 * Gets the @a cRefs tracking data member.
1140 * @returns cRefs.
1141 * @param a_pPage Pointer to the physical guest page tracking structure.
1142 */
1143#define PGM_PAGE_GET_TD_CREFS(a_pPage) \
1144 ((PGM_PAGE_GET_TRACKING(a_pPage) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK)
1145#define PGM_PAGE_GET_TD_CREFS_NA(a_pPage) \
1146 ((PGM_PAGE_GET_TRACKING_NA(a_pPage) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK)
1147
1148/** @def PGM_PAGE_GET_TD_IDX
1149 * Gets the @a idx tracking data member.
1150 * @returns idx.
1151 * @param a_pPage Pointer to the physical guest page tracking structure.
1152 */
1153#define PGM_PAGE_GET_TD_IDX(a_pPage) \
1154 ((PGM_PAGE_GET_TRACKING(a_pPage) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK)
1155#define PGM_PAGE_GET_TD_IDX_NA(a_pPage) \
1156 ((PGM_PAGE_GET_TRACKING_NA(a_pPage) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK)
1157
1158
1159/** Max number of locks on a page. */
1160#define PGM_PAGE_MAX_LOCKS UINT8_C(254)
1161
1162/** Get the read lock count.
1163 * @returns count.
1164 * @param a_pPage Pointer to the physical guest page tracking structure.
1165 */
1166#define PGM_PAGE_GET_READ_LOCKS(a_pPage) ( (a_pPage)->s.cReadLocksY )
1167
1168/** Get the write lock count.
1169 * @returns count.
1170 * @param a_pPage Pointer to the physical guest page tracking structure.
1171 */
1172#define PGM_PAGE_GET_WRITE_LOCKS(a_pPage) ( (a_pPage)->s.cWriteLocksY )
1173
1174/** Decrement the read lock counter.
1175 * @param a_pPage Pointer to the physical guest page tracking structure.
1176 */
1177#define PGM_PAGE_DEC_READ_LOCKS(a_pPage) do { --(a_pPage)->s.cReadLocksY; } while (0)
1178
1179/** Decrement the write lock counter.
1180 * @param a_pPage Pointer to the physical guest page tracking structure.
1181 */
1182#define PGM_PAGE_DEC_WRITE_LOCKS(a_pPage) do { --(a_pPage)->s.cWriteLocksY; } while (0)
1183
1184/** Increment the read lock counter.
1185 * @param a_pPage Pointer to the physical guest page tracking structure.
1186 */
1187#define PGM_PAGE_INC_READ_LOCKS(a_pPage) do { ++(a_pPage)->s.cReadLocksY; } while (0)
1188
1189/** Increment the write lock counter.
1190 * @param a_pPage Pointer to the physical guest page tracking structure.
1191 */
1192#define PGM_PAGE_INC_WRITE_LOCKS(a_pPage) do { ++(a_pPage)->s.cWriteLocksY; } while (0)
1193
1194
1195/** Gets the NEM state.
1196 * @returns NEM state value (two bits).
1197 * @param a_pPage Pointer to the physical guest page tracking structure.
1198 */
1199#define PGM_PAGE_GET_NEM_STATE(a_pPage) ((a_pPage)->s.u2NemStateY)
1200
1201/** Sets the NEM state.
1202 * @param a_pPage Pointer to the physical guest page tracking structure.
1203 * @param a_u2State The NEM state value (specific to NEM impl.).
1204 */
1205#define PGM_PAGE_SET_NEM_STATE(a_pPage, a_u2State) \
1206 do { Assert((a_u2State) < 4); (a_pPage)->s.u2NemStateY = (a_u2State); } while (0)
1207
1208
1209#if 0
1210/** Enables sanity checking of write monitoring using CRC-32. */
1211# define PGMLIVESAVERAMPAGE_WITH_CRC32
1212#endif
1213
1214/**
1215 * Per page live save tracking data.
1216 */
1217typedef struct PGMLIVESAVERAMPAGE
1218{
1219 /** Number of times it has been dirtied. */
1220 uint32_t cDirtied : 24;
1221 /** Whether it is currently dirty. */
1222 uint32_t fDirty : 1;
1223 /** Ignore the page.
1224 * This is used for pages that has been MMIO, MMIO2 or ROM pages once. We will
1225 * deal with these after pausing the VM and DevPCI have said it bit about
1226 * remappings. */
1227 uint32_t fIgnore : 1;
1228 /** Was a ZERO page last time around. */
1229 uint32_t fZero : 1;
1230 /** Was a SHARED page last time around. */
1231 uint32_t fShared : 1;
1232 /** Whether the page is/was write monitored in a previous pass. */
1233 uint32_t fWriteMonitored : 1;
1234 /** Whether the page is/was write monitored earlier in this pass. */
1235 uint32_t fWriteMonitoredJustNow : 1;
1236 /** Bits reserved for future use. */
1237 uint32_t u2Reserved : 2;
1238#ifdef PGMLIVESAVERAMPAGE_WITH_CRC32
1239 /** CRC-32 for the page. This is for internal consistency checks. */
1240 uint32_t u32Crc;
1241#endif
1242} PGMLIVESAVERAMPAGE;
1243#ifdef PGMLIVESAVERAMPAGE_WITH_CRC32
1244AssertCompileSize(PGMLIVESAVERAMPAGE, 8);
1245#else
1246AssertCompileSize(PGMLIVESAVERAMPAGE, 4);
1247#endif
1248/** Pointer to the per page live save tracking data. */
1249typedef PGMLIVESAVERAMPAGE *PPGMLIVESAVERAMPAGE;
1250
1251/** The max value of PGMLIVESAVERAMPAGE::cDirtied. */
1252#define PGMLIVSAVEPAGE_MAX_DIRTIED 0x00fffff0
1253
1254
1255/**
1256 * RAM range for GC Phys to HC Phys conversion.
1257 *
1258 * Can be used for HC Virt to GC Phys and HC Virt to HC Phys
1259 * conversions too, but we'll let MM handle that for now.
1260 *
1261 * This structure is used by linked lists in both GC and HC.
1262 */
1263typedef struct PGMRAMRANGE
1264{
1265 /** Start of the range. Page aligned. */
1266 RTGCPHYS GCPhys;
1267 /** Size of the range. (Page aligned of course). */
1268 RTGCPHYS cb;
1269 /** Pointer to the next RAM range - for R3. */
1270 R3PTRTYPE(struct PGMRAMRANGE *) pNextR3;
1271 /** Pointer to the next RAM range - for R0. */
1272 R0PTRTYPE(struct PGMRAMRANGE *) pNextR0;
1273 /** PGM_RAM_RANGE_FLAGS_* flags. */
1274 uint32_t fFlags;
1275 uint32_t fPadding1;
1276 /** Last address in the range (inclusive). Page aligned (-1). */
1277 RTGCPHYS GCPhysLast;
1278 /** Start of the HC mapping of the range. This is only used for MMIO2. */
1279 R3PTRTYPE(void *) pvR3;
1280 /** Live save per page tracking data. */
1281 R3PTRTYPE(PPGMLIVESAVERAMPAGE) paLSPages;
1282 /** The range description. */
1283 R3PTRTYPE(const char *) pszDesc;
1284 /** Pointer to self - R0 pointer. */
1285 R0PTRTYPE(struct PGMRAMRANGE *) pSelfR0;
1286
1287 /** Pointer to the left search three node - ring-3 context. */
1288 R3PTRTYPE(struct PGMRAMRANGE *) pLeftR3;
1289 /** Pointer to the right search three node - ring-3 context. */
1290 R3PTRTYPE(struct PGMRAMRANGE *) pRightR3;
1291 /** Pointer to the left search three node - ring-0 context. */
1292 R0PTRTYPE(struct PGMRAMRANGE *) pLeftR0;
1293 /** Pointer to the right search three node - ring-0 context. */
1294 R0PTRTYPE(struct PGMRAMRANGE *) pRightR0;
1295
1296 /** Padding to make aPage aligned on sizeof(PGMPAGE). */
1297#if HC_ARCH_BITS == 32
1298 uint32_t au32Alignment2[HC_ARCH_BITS == 32 ? 2 : 0];
1299#endif
1300 /** Array of physical guest page tracking structures. */
1301 PGMPAGE aPages[1];
1302} PGMRAMRANGE;
1303/** Pointer to RAM range for GC Phys to HC Phys conversion. */
1304typedef PGMRAMRANGE *PPGMRAMRANGE;
1305
1306/** @name PGMRAMRANGE::fFlags
1307 * @{ */
1308/** The RAM range is floating around as an independent guest mapping. */
1309#define PGM_RAM_RANGE_FLAGS_FLOATING RT_BIT(20)
1310/** Ad hoc RAM range for an ROM mapping. */
1311#define PGM_RAM_RANGE_FLAGS_AD_HOC_ROM RT_BIT(21)
1312/** Ad hoc RAM range for an MMIO mapping. */
1313#define PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO RT_BIT(22)
1314/** Ad hoc RAM range for an MMIO2 or pre-registered MMIO mapping. */
1315#define PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO_EX RT_BIT(23)
1316/** @} */
1317
1318/** Tests if a RAM range is an ad hoc one or not.
1319 * @returns true/false.
1320 * @param pRam The RAM range.
1321 */
1322#define PGM_RAM_RANGE_IS_AD_HOC(pRam) \
1323 (!!( (pRam)->fFlags & (PGM_RAM_RANGE_FLAGS_AD_HOC_ROM | PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO | PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO_EX) ) )
1324
1325/** The number of entries in the RAM range TLBs (there is one for each
1326 * context). Must be a power of two. */
1327#define PGM_RAMRANGE_TLB_ENTRIES 8
1328
1329/**
1330 * Calculates the RAM range TLB index for the physical address.
1331 *
1332 * @returns RAM range TLB index.
1333 * @param a_GCPhys The guest physical address.
1334 */
1335#define PGM_RAMRANGE_TLB_IDX(a_GCPhys) ( ((a_GCPhys) >> 20) & (PGM_RAMRANGE_TLB_ENTRIES - 1) )
1336
1337
1338
1339/**
1340 * Per page tracking structure for ROM image.
1341 *
1342 * A ROM image may have a shadow page, in which case we may have two pages
1343 * backing it. This structure contains the PGMPAGE for both while
1344 * PGMRAMRANGE have a copy of the active one. It is important that these
1345 * aren't out of sync in any regard other than page pool tracking data.
1346 */
1347typedef struct PGMROMPAGE
1348{
1349 /** The page structure for the virgin ROM page. */
1350 PGMPAGE Virgin;
1351 /** The page structure for the shadow RAM page. */
1352 PGMPAGE Shadow;
1353 /** The current protection setting. */
1354 PGMROMPROT enmProt;
1355 /** Live save status information. Makes use of unused alignment space. */
1356 struct
1357 {
1358 /** The previous protection value. */
1359 uint8_t u8Prot;
1360 /** Written to flag set by the handler. */
1361 bool fWrittenTo;
1362 /** Whether the shadow page is dirty or not. */
1363 bool fDirty;
1364 /** Whether it was dirtied in the recently. */
1365 bool fDirtiedRecently;
1366 } LiveSave;
1367} PGMROMPAGE;
1368AssertCompileSizeAlignment(PGMROMPAGE, 8);
1369/** Pointer to a ROM page tracking structure. */
1370typedef PGMROMPAGE *PPGMROMPAGE;
1371
1372
1373/**
1374 * A registered ROM image.
1375 *
1376 * This is needed to keep track of ROM image since they generally intrude
1377 * into a PGMRAMRANGE. It also keeps track of additional info like the
1378 * two page sets (read-only virgin and read-write shadow), the current
1379 * state of each page.
1380 *
1381 * Because access handlers cannot easily be executed in a different
1382 * context, the ROM ranges needs to be accessible and in all contexts.
1383 */
1384typedef struct PGMROMRANGE
1385{
1386 /** Pointer to the next range - R3. */
1387 R3PTRTYPE(struct PGMROMRANGE *) pNextR3;
1388 /** Pointer to the next range - R0. */
1389 R0PTRTYPE(struct PGMROMRANGE *) pNextR0;
1390 /** Address of the range. */
1391 RTGCPHYS GCPhys;
1392 /** Address of the last byte in the range. */
1393 RTGCPHYS GCPhysLast;
1394 /** Size of the range. */
1395 RTGCPHYS cb;
1396 /** The flags (PGMPHYS_ROM_FLAGS_*). */
1397 uint32_t fFlags;
1398 /** The saved state range ID. */
1399 uint8_t idSavedState;
1400 /** Alignment padding. */
1401 uint8_t au8Alignment[3];
1402 /** Alignment padding ensuring that aPages is sizeof(PGMROMPAGE) aligned. */
1403 uint32_t au32Alignemnt[HC_ARCH_BITS == 32 ? 5 : 1];
1404 /** The size bits pvOriginal points to. */
1405 uint32_t cbOriginal;
1406 /** Pointer to the original bits when PGMPHYS_ROM_FLAGS_PERMANENT_BINARY was specified.
1407 * This is used for strictness checks. */
1408 R3PTRTYPE(const void *) pvOriginal;
1409 /** The ROM description. */
1410 R3PTRTYPE(const char *) pszDesc;
1411 /** The per page tracking structures. */
1412 PGMROMPAGE aPages[1];
1413} PGMROMRANGE;
1414/** Pointer to a ROM range. */
1415typedef PGMROMRANGE *PPGMROMRANGE;
1416
1417
1418/**
1419 * Live save per page data for an MMIO2 page.
1420 *
1421 * Not using PGMLIVESAVERAMPAGE here because we cannot use normal write monitoring
1422 * of MMIO2 pages. The current approach is using some optimistic SHA-1 +
1423 * CRC-32 for detecting changes as well as special handling of zero pages. This
1424 * is a TEMPORARY measure which isn't perfect, but hopefully it is good enough
1425 * for speeding things up. (We're using SHA-1 and not SHA-256 or SHA-512
1426 * because of speed (2.5x and 6x slower).)
1427 *
1428 * @todo Implement dirty MMIO2 page reporting that can be enabled during live
1429 * save but normally is disabled. Since we can write monitor guest
1430 * accesses on our own, we only need this for host accesses. Shouldn't be
1431 * too difficult for DevVGA, VMMDev might be doable, the planned
1432 * networking fun will be fun since it involves ring-0.
1433 */
1434typedef struct PGMLIVESAVEMMIO2PAGE
1435{
1436 /** Set if the page is considered dirty. */
1437 bool fDirty;
1438 /** The number of scans this page has remained unchanged for.
1439 * Only updated for dirty pages. */
1440 uint8_t cUnchangedScans;
1441 /** Whether this page was zero at the last scan. */
1442 bool fZero;
1443 /** Alignment padding. */
1444 bool fReserved;
1445 /** CRC-32 for the first half of the page.
1446 * This is used together with u32CrcH2 to quickly detect changes in the page
1447 * during the non-final passes. */
1448 uint32_t u32CrcH1;
1449 /** CRC-32 for the second half of the page. */
1450 uint32_t u32CrcH2;
1451 /** SHA-1 for the saved page.
1452 * This is used in the final pass to skip pages without changes. */
1453 uint8_t abSha1Saved[RTSHA1_HASH_SIZE];
1454} PGMLIVESAVEMMIO2PAGE;
1455/** Pointer to a live save status data for an MMIO2 page. */
1456typedef PGMLIVESAVEMMIO2PAGE *PPGMLIVESAVEMMIO2PAGE;
1457
1458/**
1459 * A registered MMIO2 (= Device RAM) range.
1460 *
1461 * There are a few reason why we need to keep track of these registrations. One
1462 * of them is the deregistration & cleanup stuff, while another is that the
1463 * PGMRAMRANGE associated with such a region may have to be removed from the ram
1464 * range list.
1465 *
1466 * Overlapping with a RAM range has to be 100% or none at all. The pages in the
1467 * existing RAM range must not be ROM nor MMIO. A guru meditation will be
1468 * raised if a partial overlap or an overlap of ROM pages is encountered. On an
1469 * overlap we will free all the existing RAM pages and put in the ram range
1470 * pages instead.
1471 */
1472typedef struct PGMREGMMIO2RANGE
1473{
1474 /** The owner of the range. (a device) */
1475 PPDMDEVINSR3 pDevInsR3;
1476 /** Pointer to the ring-3 mapping of the allocation. */
1477 RTR3PTR pvR3;
1478#ifndef VBOX_WITH_LINEAR_HOST_PHYS_MEM
1479 /** Pointer to the ring-0 mapping of the allocation. */
1480 RTR0PTR pvR0;
1481#endif
1482 /** Pointer to the next range - R3. */
1483 R3PTRTYPE(struct PGMREGMMIO2RANGE *) pNextR3;
1484 /** Flags (PGMREGMMIO2RANGE_F_XXX). */
1485 uint16_t fFlags;
1486 /** The sub device number (internal PCI config (CFGM) number). */
1487 uint8_t iSubDev;
1488 /** The PCI region number. */
1489 uint8_t iRegion;
1490 /** The saved state range ID. */
1491 uint8_t idSavedState;
1492 /** MMIO2 range identifier, for page IDs (PGMPAGE::s.idPage). */
1493 uint8_t idMmio2;
1494 /** Alignment padding for putting the ram range on a PGMPAGE alignment boundary. */
1495#ifndef VBOX_WITH_LINEAR_HOST_PHYS_MEM
1496 uint8_t abAlignment[HC_ARCH_BITS == 32 ? 6 + 4 : 2];
1497#else
1498 uint8_t abAlignment[HC_ARCH_BITS == 32 ? 6 + 8 : 2 + 8];
1499#endif
1500 /** The real size.
1501 * This may be larger than indicated by RamRange.cb if the range has been
1502 * reduced during saved state loading. */
1503 RTGCPHYS cbReal;
1504 /** Pointer to the physical handler for MMIO. */
1505 R3PTRTYPE(PPGMPHYSHANDLER) pPhysHandlerR3;
1506 /** Live save per page tracking data for MMIO2. */
1507 R3PTRTYPE(PPGMLIVESAVEMMIO2PAGE) paLSPages;
1508 /** The associated RAM range. */
1509 PGMRAMRANGE RamRange;
1510} PGMREGMMIO2RANGE;
1511AssertCompileMemberAlignment(PGMREGMMIO2RANGE, RamRange, 16);
1512/** Pointer to a MMIO2 or pre-registered MMIO range. */
1513typedef PGMREGMMIO2RANGE *PPGMREGMMIO2RANGE;
1514
1515/** @name PGMREGMMIO2RANGE_F_XXX - Registered MMIO2 range flags.
1516 * @{ */
1517/** Set if it's an MMIO2 range.
1518 * @note Historical. For a while we did some of the MMIO this way too. */
1519#define PGMREGMMIO2RANGE_F_MMIO2 UINT16_C(0x0001)
1520/** Set if this is the first chunk in the MMIO2 range. */
1521#define PGMREGMMIO2RANGE_F_FIRST_CHUNK UINT16_C(0x0002)
1522/** Set if this is the last chunk in the MMIO2 range. */
1523#define PGMREGMMIO2RANGE_F_LAST_CHUNK UINT16_C(0x0004)
1524/** Set if the whole range is mapped. */
1525#define PGMREGMMIO2RANGE_F_MAPPED UINT16_C(0x0008)
1526/** Set if it's overlapping, clear if not. */
1527#define PGMREGMMIO2RANGE_F_OVERLAPPING UINT16_C(0x0010)
1528/** @} */
1529
1530
1531/** @name Internal MMIO2 constants.
1532 * @{ */
1533/** The maximum number of MMIO2 ranges. */
1534#define PGM_MMIO2_MAX_RANGES 32
1535/** The maximum number of pages in a MMIO2 range. */
1536#define PGM_MMIO2_MAX_PAGE_COUNT UINT32_C(0x01000000)
1537/** Makes a MMIO2 page ID out of a MMIO2 range ID and page index number. */
1538#define PGM_MMIO2_PAGEID_MAKE(a_idMmio2, a_iPage) ( ((uint32_t)(a_idMmio2) << 24) | (uint32_t)(a_iPage) )
1539/** Gets the MMIO2 range ID from an MMIO2 page ID. */
1540#define PGM_MMIO2_PAGEID_GET_MMIO2_ID(a_idPage) ( (uint8_t)((a_idPage) >> 24) )
1541/** Gets the MMIO2 page index from an MMIO2 page ID. */
1542#define PGM_MMIO2_PAGEID_GET_IDX(a_idPage) ( ((a_idPage) & UINT32_C(0x00ffffff)) )
1543/** @} */
1544
1545
1546
1547/**
1548 * PGMPhysRead/Write cache entry
1549 */
1550typedef struct PGMPHYSCACHEENTRY
1551{
1552 /** R3 pointer to physical page. */
1553 R3PTRTYPE(uint8_t *) pbR3;
1554 /** GC Physical address for cache entry */
1555 RTGCPHYS GCPhys;
1556#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
1557 RTGCPHYS u32Padding0; /**< alignment padding. */
1558#endif
1559} PGMPHYSCACHEENTRY;
1560
1561/**
1562 * PGMPhysRead/Write cache to reduce REM memory access overhead
1563 */
1564typedef struct PGMPHYSCACHE
1565{
1566 /** Bitmap of valid cache entries */
1567 uint64_t aEntries;
1568 /** Cache entries */
1569 PGMPHYSCACHEENTRY Entry[PGM_MAX_PHYSCACHE_ENTRIES];
1570} PGMPHYSCACHE;
1571
1572
1573/** @name Ring-3 page mapping TLBs
1574 * @{ */
1575
1576/** Pointer to an allocation chunk ring-3 mapping. */
1577typedef struct PGMCHUNKR3MAP *PPGMCHUNKR3MAP;
1578/** Pointer to an allocation chunk ring-3 mapping pointer. */
1579typedef PPGMCHUNKR3MAP *PPPGMCHUNKR3MAP;
1580
1581/**
1582 * Ring-3 tracking structure for an allocation chunk ring-3 mapping.
1583 *
1584 * The primary tree (Core) uses the chunk id as key.
1585 */
1586typedef struct PGMCHUNKR3MAP
1587{
1588 /** The key is the chunk id. */
1589 AVLU32NODECORE Core;
1590 /** The time (ChunkR3Map.iNow) this chunk was last used. Used for unmap
1591 * selection. */
1592 uint32_t iLastUsed;
1593 /** The current reference count. */
1594 uint32_t volatile cRefs;
1595 /** The current permanent reference count. */
1596 uint32_t volatile cPermRefs;
1597 /** The mapping address. */
1598 void *pv;
1599} PGMCHUNKR3MAP;
1600
1601/**
1602 * Allocation chunk ring-3 mapping TLB entry.
1603 */
1604typedef struct PGMCHUNKR3MAPTLBE
1605{
1606 /** The chunk id. */
1607 uint32_t volatile idChunk;
1608#if HC_ARCH_BITS == 64
1609 uint32_t u32Padding; /**< alignment padding. */
1610#endif
1611 /** The chunk map. */
1612 R3PTRTYPE(PPGMCHUNKR3MAP) volatile pChunk;
1613} PGMCHUNKR3MAPTLBE;
1614/** Pointer to the an allocation chunk ring-3 mapping TLB entry. */
1615typedef PGMCHUNKR3MAPTLBE *PPGMCHUNKR3MAPTLBE;
1616
1617/** The number of TLB entries in PGMCHUNKR3MAPTLB.
1618 * @remark Must be a power of two value. */
1619#define PGM_CHUNKR3MAPTLB_ENTRIES 64
1620
1621/**
1622 * Allocation chunk ring-3 mapping TLB.
1623 *
1624 * @remarks We use a TLB to speed up lookups by avoiding walking the AVL.
1625 * At first glance this might look kinda odd since AVL trees are
1626 * supposed to give the most optimal lookup times of all trees
1627 * due to their balancing. However, take a tree with 1023 nodes
1628 * in it, that's 10 levels, meaning that most searches has to go
1629 * down 9 levels before they find what they want. This isn't fast
1630 * compared to a TLB hit. There is the factor of cache misses,
1631 * and of course the problem with trees and branch prediction.
1632 * This is why we use TLBs in front of most of the trees.
1633 *
1634 * @todo Generalize this TLB + AVL stuff, shouldn't be all that
1635 * difficult when we switch to the new inlined AVL trees (from kStuff).
1636 */
1637typedef struct PGMCHUNKR3MAPTLB
1638{
1639 /** The TLB entries. */
1640 PGMCHUNKR3MAPTLBE aEntries[PGM_CHUNKR3MAPTLB_ENTRIES];
1641} PGMCHUNKR3MAPTLB;
1642
1643/**
1644 * Calculates the index of a guest page in the Ring-3 Chunk TLB.
1645 * @returns Chunk TLB index.
1646 * @param idChunk The Chunk ID.
1647 */
1648#define PGM_CHUNKR3MAPTLB_IDX(idChunk) ( (idChunk) & (PGM_CHUNKR3MAPTLB_ENTRIES - 1) )
1649
1650
1651/**
1652 * Ring-3 guest page mapping TLB entry.
1653 * @remarks used in ring-0 as well at the moment.
1654 */
1655typedef struct PGMPAGER3MAPTLBE
1656{
1657 /** Address of the page. */
1658 RTGCPHYS volatile GCPhys;
1659 /** The guest page. */
1660 R3PTRTYPE(PPGMPAGE) volatile pPage;
1661 /** Pointer to the page mapping tracking structure, PGMCHUNKR3MAP. */
1662 R3PTRTYPE(PPGMCHUNKR3MAP) volatile pMap;
1663 /** The address */
1664 R3PTRTYPE(void *) volatile pv;
1665#if HC_ARCH_BITS == 32
1666 uint32_t u32Padding; /**< alignment padding. */
1667#endif
1668} PGMPAGER3MAPTLBE;
1669/** Pointer to an entry in the HC physical TLB. */
1670typedef PGMPAGER3MAPTLBE *PPGMPAGER3MAPTLBE;
1671
1672
1673/** The number of entries in the ring-3 guest page mapping TLB.
1674 * @remarks The value must be a power of two. */
1675#define PGM_PAGER3MAPTLB_ENTRIES 256
1676
1677/**
1678 * Ring-3 guest page mapping TLB.
1679 * @remarks used in ring-0 as well at the moment.
1680 */
1681typedef struct PGMPAGER3MAPTLB
1682{
1683 /** The TLB entries. */
1684 PGMPAGER3MAPTLBE aEntries[PGM_PAGER3MAPTLB_ENTRIES];
1685} PGMPAGER3MAPTLB;
1686/** Pointer to the ring-3 guest page mapping TLB. */
1687typedef PGMPAGER3MAPTLB *PPGMPAGER3MAPTLB;
1688
1689/**
1690 * Calculates the index of the TLB entry for the specified guest page.
1691 * @returns Physical TLB index.
1692 * @param GCPhys The guest physical address.
1693 */
1694#define PGM_PAGER3MAPTLB_IDX(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGM_PAGER3MAPTLB_ENTRIES - 1) )
1695
1696/** @} */
1697
1698
1699/** @name Ring-0 page mapping TLB
1700 * @{ */
1701/**
1702 * Ring-0 guest page mapping TLB entry.
1703 */
1704typedef struct PGMPAGER0MAPTLBE
1705{
1706 /** Address of the page. */
1707 RTGCPHYS volatile GCPhys;
1708 /** The guest page. */
1709 R0PTRTYPE(PPGMPAGE) volatile pPage;
1710 /** The address */
1711 R0PTRTYPE(void *) volatile pv;
1712} PGMPAGER0MAPTLBE;
1713/** Pointer to an entry in the HC physical TLB. */
1714typedef PGMPAGER0MAPTLBE *PPGMPAGER0MAPTLBE;
1715
1716
1717/** The number of entries in the ring-3 guest page mapping TLB.
1718 * @remarks The value must be a power of two. */
1719#define PGM_PAGER0MAPTLB_ENTRIES 256
1720
1721/**
1722 * Ring-3 guest page mapping TLB.
1723 * @remarks used in ring-0 as well at the moment.
1724 */
1725typedef struct PGMPAGER0MAPTLB
1726{
1727 /** The TLB entries. */
1728 PGMPAGER0MAPTLBE aEntries[PGM_PAGER0MAPTLB_ENTRIES];
1729} PGMPAGER0MAPTLB;
1730/** Pointer to the ring-3 guest page mapping TLB. */
1731typedef PGMPAGER0MAPTLB *PPGMPAGER0MAPTLB;
1732
1733/**
1734 * Calculates the index of the TLB entry for the specified guest page.
1735 * @returns Physical TLB index.
1736 * @param GCPhys The guest physical address.
1737 */
1738#define PGM_PAGER0MAPTLB_IDX(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGM_PAGER0MAPTLB_ENTRIES - 1) )
1739/** @} */
1740
1741
1742/** @name Context neutral page mapper TLB.
1743 *
1744 * Hoping to avoid some code and bug duplication parts of the GCxxx->CCPtr
1745 * code is writting in a kind of context neutral way. Time will show whether
1746 * this actually makes sense or not...
1747 *
1748 * @todo this needs to be reconsidered and dropped/redone since the ring-0
1749 * context ends up using a global mapping cache on some platforms
1750 * (darwin).
1751 *
1752 * @{ */
1753/** @typedef PPGMPAGEMAPTLB
1754 * The page mapper TLB pointer type for the current context. */
1755/** @typedef PPGMPAGEMAPTLB
1756 * The page mapper TLB entry pointer type for the current context. */
1757/** @typedef PPGMPAGEMAPTLB
1758 * The page mapper TLB entry pointer pointer type for the current context. */
1759/** @def PGM_PAGEMAPTLB_ENTRIES
1760 * The number of TLB entries in the page mapper TLB for the current context. */
1761/** @def PGM_PAGEMAPTLB_IDX
1762 * Calculate the TLB index for a guest physical address.
1763 * @returns The TLB index.
1764 * @param GCPhys The guest physical address. */
1765/** @typedef PPGMPAGEMAP
1766 * Pointer to a page mapper unit for current context. */
1767/** @typedef PPPGMPAGEMAP
1768 * Pointer to a page mapper unit pointer for current context. */
1769#if defined(IN_RING0)
1770typedef PPGMPAGER0MAPTLB PPGMPAGEMAPTLB;
1771typedef PPGMPAGER0MAPTLBE PPGMPAGEMAPTLBE;
1772typedef PPGMPAGER0MAPTLBE *PPPGMPAGEMAPTLBE;
1773# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER0MAPTLB_ENTRIES
1774# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER0MAPTLB_IDX(GCPhys)
1775typedef struct PGMCHUNKR0MAP *PPGMPAGEMAP;
1776typedef struct PGMCHUNKR0MAP **PPPGMPAGEMAP;
1777#else
1778typedef PPGMPAGER3MAPTLB PPGMPAGEMAPTLB;
1779typedef PPGMPAGER3MAPTLBE PPGMPAGEMAPTLBE;
1780typedef PPGMPAGER3MAPTLBE *PPPGMPAGEMAPTLBE;
1781# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER3MAPTLB_ENTRIES
1782# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER3MAPTLB_IDX(GCPhys)
1783typedef PPGMCHUNKR3MAP PPGMPAGEMAP;
1784typedef PPPGMCHUNKR3MAP PPPGMPAGEMAP;
1785#endif
1786/** @} */
1787
1788
1789/** @name PGM Pool Indexes.
1790 * Aka. the unique shadow page identifier.
1791 * @{ */
1792/** NIL page pool IDX. */
1793#define NIL_PGMPOOL_IDX 0
1794/** The first normal index. There used to be 5 fictive pages up front, now
1795 * there is only the NIL page. */
1796#define PGMPOOL_IDX_FIRST 1
1797/** The last valid index. (inclusive, 14 bits) */
1798#define PGMPOOL_IDX_LAST 0x3fff
1799/** @} */
1800
1801/** The NIL index for the parent chain. */
1802#define NIL_PGMPOOL_USER_INDEX ((uint16_t)0xffff)
1803#define NIL_PGMPOOL_PRESENT_INDEX ((uint16_t)0xffff)
1804
1805/**
1806 * Node in the chain linking a shadowed page to it's parent (user).
1807 */
1808#pragma pack(1)
1809typedef struct PGMPOOLUSER
1810{
1811 /** The index to the next item in the chain. NIL_PGMPOOL_USER_INDEX is no next. */
1812 uint16_t iNext;
1813 /** The user page index. */
1814 uint16_t iUser;
1815 /** Index into the user table. */
1816 uint32_t iUserTable;
1817} PGMPOOLUSER, *PPGMPOOLUSER;
1818typedef const PGMPOOLUSER *PCPGMPOOLUSER;
1819#pragma pack()
1820
1821
1822/** The NIL index for the phys ext chain. */
1823#define NIL_PGMPOOL_PHYSEXT_INDEX ((uint16_t)0xffff)
1824/** The NIL pte index for a phys ext chain slot. */
1825#define NIL_PGMPOOL_PHYSEXT_IDX_PTE ((uint16_t)0xffff)
1826
1827/**
1828 * Node in the chain of physical cross reference extents.
1829 * @todo Calling this an 'extent' is not quite right, find a better name.
1830 * @todo find out the optimal size of the aidx array
1831 */
1832#pragma pack(1)
1833typedef struct PGMPOOLPHYSEXT
1834{
1835 /** The index to the next item in the chain. NIL_PGMPOOL_PHYSEXT_INDEX is no next. */
1836 uint16_t iNext;
1837 /** Alignment. */
1838 uint16_t u16Align;
1839 /** The user page index. */
1840 uint16_t aidx[3];
1841 /** The page table index or NIL_PGMPOOL_PHYSEXT_IDX_PTE if unknown. */
1842 uint16_t apte[3];
1843} PGMPOOLPHYSEXT, *PPGMPOOLPHYSEXT;
1844typedef const PGMPOOLPHYSEXT *PCPGMPOOLPHYSEXT;
1845#pragma pack()
1846
1847
1848/**
1849 * The kind of page that's being shadowed.
1850 */
1851typedef enum PGMPOOLKIND
1852{
1853 /** The virtual invalid 0 entry. */
1854 PGMPOOLKIND_INVALID = 0,
1855 /** The entry is free (=unused). */
1856 PGMPOOLKIND_FREE,
1857
1858 /** Shw: 32-bit page table; Gst: no paging. */
1859 PGMPOOLKIND_32BIT_PT_FOR_PHYS,
1860 /** Shw: 32-bit page table; Gst: 32-bit page table. */
1861 PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT,
1862 /** Shw: 32-bit page table; Gst: 4MB page. */
1863 PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB,
1864 /** Shw: PAE page table; Gst: no paging. */
1865 PGMPOOLKIND_PAE_PT_FOR_PHYS,
1866 /** Shw: PAE page table; Gst: 32-bit page table. */
1867 PGMPOOLKIND_PAE_PT_FOR_32BIT_PT,
1868 /** Shw: PAE page table; Gst: Half of a 4MB page. */
1869 PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB,
1870 /** Shw: PAE page table; Gst: PAE page table. */
1871 PGMPOOLKIND_PAE_PT_FOR_PAE_PT,
1872 /** Shw: PAE page table; Gst: 2MB page. */
1873 PGMPOOLKIND_PAE_PT_FOR_PAE_2MB,
1874
1875 /** Shw: 32-bit page directory. Gst: 32-bit page directory. */
1876 PGMPOOLKIND_32BIT_PD,
1877 /** Shw: 32-bit page directory. Gst: no paging. */
1878 PGMPOOLKIND_32BIT_PD_PHYS,
1879 /** Shw: PAE page directory 0; Gst: 32-bit page directory. */
1880 PGMPOOLKIND_PAE_PD0_FOR_32BIT_PD,
1881 /** Shw: PAE page directory 1; Gst: 32-bit page directory. */
1882 PGMPOOLKIND_PAE_PD1_FOR_32BIT_PD,
1883 /** Shw: PAE page directory 2; Gst: 32-bit page directory. */
1884 PGMPOOLKIND_PAE_PD2_FOR_32BIT_PD,
1885 /** Shw: PAE page directory 3; Gst: 32-bit page directory. */
1886 PGMPOOLKIND_PAE_PD3_FOR_32BIT_PD,
1887 /** Shw: PAE page directory; Gst: PAE page directory. */
1888 PGMPOOLKIND_PAE_PD_FOR_PAE_PD,
1889 /** Shw: PAE page directory; Gst: no paging. Note: +NP. */
1890 PGMPOOLKIND_PAE_PD_PHYS,
1891
1892 /** Shw: PAE page directory pointer table (legacy, 4 entries); Gst 32 bits paging. */
1893 PGMPOOLKIND_PAE_PDPT_FOR_32BIT,
1894 /** Shw: PAE page directory pointer table (legacy, 4 entries); Gst PAE PDPT. */
1895 PGMPOOLKIND_PAE_PDPT,
1896 /** Shw: PAE page directory pointer table (legacy, 4 entries); Gst: no paging. */
1897 PGMPOOLKIND_PAE_PDPT_PHYS,
1898
1899 /** Shw: 64-bit page directory pointer table; Gst: 64-bit page directory pointer table. */
1900 PGMPOOLKIND_64BIT_PDPT_FOR_64BIT_PDPT,
1901 /** Shw: 64-bit page directory pointer table; Gst: no paging. */
1902 PGMPOOLKIND_64BIT_PDPT_FOR_PHYS,
1903 /** Shw: 64-bit page directory table; Gst: 64-bit page directory table. */
1904 PGMPOOLKIND_64BIT_PD_FOR_64BIT_PD,
1905 /** Shw: 64-bit page directory table; Gst: no paging. */
1906 PGMPOOLKIND_64BIT_PD_FOR_PHYS, /* 24 */
1907
1908 /** Shw: 64-bit PML4; Gst: 64-bit PML4. */
1909 PGMPOOLKIND_64BIT_PML4,
1910
1911 /** Shw: EPT page directory pointer table; Gst: no paging. */
1912 PGMPOOLKIND_EPT_PDPT_FOR_PHYS,
1913 /** Shw: EPT page directory table; Gst: no paging. */
1914 PGMPOOLKIND_EPT_PD_FOR_PHYS,
1915 /** Shw: EPT page table; Gst: no paging. */
1916 PGMPOOLKIND_EPT_PT_FOR_PHYS,
1917
1918 /** Shw: Root Nested paging table. */
1919 PGMPOOLKIND_ROOT_NESTED,
1920
1921 /** The last valid entry. */
1922 PGMPOOLKIND_LAST = PGMPOOLKIND_ROOT_NESTED
1923} PGMPOOLKIND;
1924
1925/**
1926 * The access attributes of the page; only applies to big pages.
1927 */
1928typedef enum
1929{
1930 PGMPOOLACCESS_DONTCARE = 0,
1931 PGMPOOLACCESS_USER_RW,
1932 PGMPOOLACCESS_USER_R,
1933 PGMPOOLACCESS_USER_RW_NX,
1934 PGMPOOLACCESS_USER_R_NX,
1935 PGMPOOLACCESS_SUPERVISOR_RW,
1936 PGMPOOLACCESS_SUPERVISOR_R,
1937 PGMPOOLACCESS_SUPERVISOR_RW_NX,
1938 PGMPOOLACCESS_SUPERVISOR_R_NX
1939} PGMPOOLACCESS;
1940
1941/**
1942 * The tracking data for a page in the pool.
1943 */
1944typedef struct PGMPOOLPAGE
1945{
1946 /** AVL node code with the (HC) physical address of this page. */
1947 AVLOHCPHYSNODECORE Core;
1948 /** Pointer to the R3 mapping of the page. */
1949 R3PTRTYPE(void *) pvPageR3;
1950 /** Pointer to the R0 mapping of the page. */
1951 R0PTRTYPE(void *) pvPageR0;
1952 /** The guest physical address. */
1953 RTGCPHYS GCPhys;
1954 /** The kind of page we're shadowing. (This is really a PGMPOOLKIND enum.) */
1955 uint8_t enmKind;
1956 /** The subkind of page we're shadowing. (This is really a PGMPOOLACCESS enum.) */
1957 uint8_t enmAccess;
1958 /** This supplements enmKind and enmAccess */
1959 bool fA20Enabled : 1;
1960
1961 /** Used to indicate that the page is zeroed. */
1962 bool fZeroed : 1;
1963 /** Used to indicate that a PT has non-global entries. */
1964 bool fSeenNonGlobal : 1;
1965 /** Used to indicate that we're monitoring writes to the guest page. */
1966 bool fMonitored : 1;
1967 /** Used to indicate that the page is in the cache (e.g. in the GCPhys hash).
1968 * (All pages are in the age list.) */
1969 bool fCached : 1;
1970 /** This is used by the R3 access handlers when invoked by an async thread.
1971 * It's a hack required because of REMR3NotifyHandlerPhysicalDeregister. */
1972 bool volatile fReusedFlushPending : 1;
1973 /** Used to mark the page as dirty (write monitoring is temporarily
1974 * off). */
1975 bool fDirty : 1;
1976 bool fPadding1 : 1;
1977 bool fPadding2;
1978
1979 /** The index of this page. */
1980 uint16_t idx;
1981 /** The next entry in the list this page currently resides in.
1982 * It's either in the free list or in the GCPhys hash. */
1983 uint16_t iNext;
1984 /** Head of the user chain. NIL_PGMPOOL_USER_INDEX if not currently in use. */
1985 uint16_t iUserHead;
1986 /** The number of present entries. */
1987 uint16_t cPresent;
1988 /** The first entry in the table which is present. */
1989 uint16_t iFirstPresent;
1990 /** The number of modifications to the monitored page. */
1991 uint16_t cModifications;
1992 /** The next modified page. NIL_PGMPOOL_IDX if tail. */
1993 uint16_t iModifiedNext;
1994 /** The previous modified page. NIL_PGMPOOL_IDX if head. */
1995 uint16_t iModifiedPrev;
1996 /** The next page sharing access handler. NIL_PGMPOOL_IDX if tail. */
1997 uint16_t iMonitoredNext;
1998 /** The previous page sharing access handler. NIL_PGMPOOL_IDX if head. */
1999 uint16_t iMonitoredPrev;
2000 /** The next page in the age list. */
2001 uint16_t iAgeNext;
2002 /** The previous page in the age list. */
2003 uint16_t iAgePrev;
2004 /** Index into PGMPOOL::aDirtyPages if fDirty is set. */
2005 uint8_t idxDirtyEntry;
2006
2007 /** @name Access handler statistics to determine whether the guest is
2008 * (re)initializing a page table.
2009 * @{ */
2010 RTGCPTR GCPtrLastAccessHandlerRip;
2011 RTGCPTR GCPtrLastAccessHandlerFault;
2012 uint64_t cLastAccessHandler;
2013 /** @} */
2014 /** Used to indicate that this page can't be flushed. Important for cr3 root pages or shadow pae pd pages. */
2015 uint32_t volatile cLocked;
2016#if GC_ARCH_BITS == 64
2017 uint32_t u32Alignment3;
2018#endif
2019# ifdef VBOX_STRICT
2020 RTGCPTR GCPtrDirtyFault;
2021# endif
2022} PGMPOOLPAGE;
2023/** Pointer to a pool page. */
2024typedef PGMPOOLPAGE *PPGMPOOLPAGE;
2025/** Pointer to a const pool page. */
2026typedef PGMPOOLPAGE const *PCPGMPOOLPAGE;
2027/** Pointer to a pool page pointer. */
2028typedef PGMPOOLPAGE **PPPGMPOOLPAGE;
2029
2030
2031/** The hash table size. */
2032# define PGMPOOL_HASH_SIZE 0x40
2033/** The hash function. */
2034# define PGMPOOL_HASH(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGMPOOL_HASH_SIZE - 1) )
2035
2036
2037/**
2038 * The shadow page pool instance data.
2039 *
2040 * It's all one big allocation made at init time, except for the
2041 * pages that is. The user nodes follows immediately after the
2042 * page structures.
2043 */
2044typedef struct PGMPOOL
2045{
2046 /** The VM handle - R3 Ptr. */
2047 PVMR3 pVMR3;
2048 /** The VM handle - R0 Ptr. */
2049 R0PTRTYPE(PVMCC) pVMR0;
2050 /** The max pool size. This includes the special IDs. */
2051 uint16_t cMaxPages;
2052 /** The current pool size. */
2053 uint16_t cCurPages;
2054 /** The head of the free page list. */
2055 uint16_t iFreeHead;
2056 /* Padding. */
2057 uint16_t u16Padding;
2058 /** Head of the chain of free user nodes. */
2059 uint16_t iUserFreeHead;
2060 /** The number of user nodes we've allocated. */
2061 uint16_t cMaxUsers;
2062 /** The number of present page table entries in the entire pool. */
2063 uint32_t cPresent;
2064 /** Pointer to the array of user nodes - R3 pointer. */
2065 R3PTRTYPE(PPGMPOOLUSER) paUsersR3;
2066 /** Pointer to the array of user nodes - R0 pointer. */
2067 R0PTRTYPE(PPGMPOOLUSER) paUsersR0;
2068 /** Head of the chain of free phys ext nodes. */
2069 uint16_t iPhysExtFreeHead;
2070 /** The number of user nodes we've allocated. */
2071 uint16_t cMaxPhysExts;
2072 uint32_t u32Padding0b;
2073 /** Pointer to the array of physical xref extent nodes - R3 pointer. */
2074 R3PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsR3;
2075 /** Pointer to the array of physical xref extent nodes - R0 pointer. */
2076 R0PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsR0;
2077 /** Hash table for GCPhys addresses. */
2078 uint16_t aiHash[PGMPOOL_HASH_SIZE];
2079 /** The head of the age list. */
2080 uint16_t iAgeHead;
2081 /** The tail of the age list. */
2082 uint16_t iAgeTail;
2083 /** Set if the cache is enabled. */
2084 bool fCacheEnabled;
2085 /** Alignment padding. */
2086 bool afPadding1[3];
2087 /** Head of the list of modified pages. */
2088 uint16_t iModifiedHead;
2089 /** The current number of modified pages. */
2090 uint16_t cModifiedPages;
2091 /** Physical access handler type registration handle. */
2092 PGMPHYSHANDLERTYPE hAccessHandlerType;
2093 /** Next available slot (in aDirtyPages). */
2094 uint32_t idxFreeDirtyPage;
2095 /** Number of active dirty pages. */
2096 uint32_t cDirtyPages;
2097 /** Array of current dirty pgm pool page indices. */
2098 uint16_t aidxDirtyPages[16];
2099 /** Array running in parallel to aidxDirtyPages with the page data. */
2100 struct
2101 {
2102 uint64_t aPage[512];
2103 } aDirtyPages[16];
2104
2105 /** The number of pages currently in use. */
2106 uint16_t cUsedPages;
2107#ifdef VBOX_WITH_STATISTICS
2108 /** The high water mark for cUsedPages. */
2109 uint16_t cUsedPagesHigh;
2110 uint32_t Alignment1; /**< Align the next member on a 64-bit boundary. */
2111 /** Profiling pgmPoolAlloc(). */
2112 STAMPROFILEADV StatAlloc;
2113 /** Profiling pgmR3PoolClearDoIt(). */
2114 STAMPROFILE StatClearAll;
2115 /** Profiling pgmR3PoolReset(). */
2116 STAMPROFILE StatR3Reset;
2117 /** Profiling pgmPoolFlushPage(). */
2118 STAMPROFILE StatFlushPage;
2119 /** Profiling pgmPoolFree(). */
2120 STAMPROFILE StatFree;
2121 /** Counting explicit flushes by PGMPoolFlushPage(). */
2122 STAMCOUNTER StatForceFlushPage;
2123 /** Counting explicit flushes of dirty pages by PGMPoolFlushPage(). */
2124 STAMCOUNTER StatForceFlushDirtyPage;
2125 /** Counting flushes for reused pages. */
2126 STAMCOUNTER StatForceFlushReused;
2127 /** Profiling time spent zeroing pages. */
2128 STAMPROFILE StatZeroPage;
2129 /** Profiling of pgmPoolTrackDeref. */
2130 STAMPROFILE StatTrackDeref;
2131 /** Profiling pgmTrackFlushGCPhysPT. */
2132 STAMPROFILE StatTrackFlushGCPhysPT;
2133 /** Profiling pgmTrackFlushGCPhysPTs. */
2134 STAMPROFILE StatTrackFlushGCPhysPTs;
2135 /** Profiling pgmTrackFlushGCPhysPTsSlow. */
2136 STAMPROFILE StatTrackFlushGCPhysPTsSlow;
2137 /** Number of times we've been out of user records. */
2138 STAMCOUNTER StatTrackFreeUpOneUser;
2139 /** Nr of flushed entries. */
2140 STAMCOUNTER StatTrackFlushEntry;
2141 /** Nr of updated entries. */
2142 STAMCOUNTER StatTrackFlushEntryKeep;
2143 /** Profiling deref activity related tracking GC physical pages. */
2144 STAMPROFILE StatTrackDerefGCPhys;
2145 /** Number of linear searches for a HCPhys in the ram ranges. */
2146 STAMCOUNTER StatTrackLinearRamSearches;
2147 /** The number of failing pgmPoolTrackPhysExtAlloc calls. */
2148 STAMCOUNTER StamTrackPhysExtAllocFailures;
2149
2150 /** Profiling the RC/R0 \#PF access handler. */
2151 STAMPROFILE StatMonitorPfRZ;
2152 /** Profiling the RC/R0 access we've handled (except REP STOSD). */
2153 STAMPROFILE StatMonitorPfRZHandled;
2154 /** Times we've failed interpreting the instruction. */
2155 STAMCOUNTER StatMonitorPfRZEmulateInstr;
2156 /** Profiling the pgmPoolFlushPage calls made from the RC/R0 access handler. */
2157 STAMPROFILE StatMonitorPfRZFlushPage;
2158 /** Times we've detected a page table reinit. */
2159 STAMCOUNTER StatMonitorPfRZFlushReinit;
2160 /** Counting flushes for pages that are modified too often. */
2161 STAMCOUNTER StatMonitorPfRZFlushModOverflow;
2162 /** Times we've detected fork(). */
2163 STAMCOUNTER StatMonitorPfRZFork;
2164 /** Times we've failed interpreting a patch code instruction. */
2165 STAMCOUNTER StatMonitorPfRZIntrFailPatch1;
2166 /** Times we've failed interpreting a patch code instruction during flushing. */
2167 STAMCOUNTER StatMonitorPfRZIntrFailPatch2;
2168 /** The number of times we've seen rep prefixes we can't handle. */
2169 STAMCOUNTER StatMonitorPfRZRepPrefix;
2170 /** Profiling the REP STOSD cases we've handled. */
2171 STAMPROFILE StatMonitorPfRZRepStosd;
2172
2173 /** Profiling the R0/RC regular access handler. */
2174 STAMPROFILE StatMonitorRZ;
2175 /** Profiling the pgmPoolFlushPage calls made from the regular access handler in R0/RC. */
2176 STAMPROFILE StatMonitorRZFlushPage;
2177 /** Per access size counts indexed by size minus 1, last for larger. */
2178 STAMCOUNTER aStatMonitorRZSizes[16+3];
2179 /** Missaligned access counts indexed by offset - 1. */
2180 STAMCOUNTER aStatMonitorRZMisaligned[7];
2181
2182 /** Nr of handled PT faults. */
2183 STAMCOUNTER StatMonitorRZFaultPT;
2184 /** Nr of handled PD faults. */
2185 STAMCOUNTER StatMonitorRZFaultPD;
2186 /** Nr of handled PDPT faults. */
2187 STAMCOUNTER StatMonitorRZFaultPDPT;
2188 /** Nr of handled PML4 faults. */
2189 STAMCOUNTER StatMonitorRZFaultPML4;
2190
2191 /** Profiling the R3 access handler. */
2192 STAMPROFILE StatMonitorR3;
2193 /** Profiling the pgmPoolFlushPage calls made from the R3 access handler. */
2194 STAMPROFILE StatMonitorR3FlushPage;
2195 /** Per access size counts indexed by size minus 1, last for larger. */
2196 STAMCOUNTER aStatMonitorR3Sizes[16+3];
2197 /** Missaligned access counts indexed by offset - 1. */
2198 STAMCOUNTER aStatMonitorR3Misaligned[7];
2199 /** Nr of handled PT faults. */
2200 STAMCOUNTER StatMonitorR3FaultPT;
2201 /** Nr of handled PD faults. */
2202 STAMCOUNTER StatMonitorR3FaultPD;
2203 /** Nr of handled PDPT faults. */
2204 STAMCOUNTER StatMonitorR3FaultPDPT;
2205 /** Nr of handled PML4 faults. */
2206 STAMCOUNTER StatMonitorR3FaultPML4;
2207
2208 /** Times we've called pgmPoolResetDirtyPages (and there were dirty page). */
2209 STAMCOUNTER StatResetDirtyPages;
2210 /** Times we've called pgmPoolAddDirtyPage. */
2211 STAMCOUNTER StatDirtyPage;
2212 /** Times we've had to flush duplicates for dirty page management. */
2213 STAMCOUNTER StatDirtyPageDupFlush;
2214 /** Times we've had to flush because of overflow. */
2215 STAMCOUNTER StatDirtyPageOverFlowFlush;
2216
2217 /** The high water mark for cModifiedPages. */
2218 uint16_t cModifiedPagesHigh;
2219 uint16_t Alignment2[3]; /**< Align the next member on a 64-bit boundary. */
2220
2221 /** The number of cache hits. */
2222 STAMCOUNTER StatCacheHits;
2223 /** The number of cache misses. */
2224 STAMCOUNTER StatCacheMisses;
2225 /** The number of times we've got a conflict of 'kind' in the cache. */
2226 STAMCOUNTER StatCacheKindMismatches;
2227 /** Number of times we've been out of pages. */
2228 STAMCOUNTER StatCacheFreeUpOne;
2229 /** The number of cacheable allocations. */
2230 STAMCOUNTER StatCacheCacheable;
2231 /** The number of uncacheable allocations. */
2232 STAMCOUNTER StatCacheUncacheable;
2233#else
2234 uint32_t Alignment3; /**< Align the next member on a 64-bit boundary. */
2235#endif
2236 /** Profiling PGMR0PoolGrow(). */
2237 STAMPROFILE StatGrow;
2238 /** The AVL tree for looking up a page by its HC physical address. */
2239 AVLOHCPHYSTREE HCPhysTree;
2240 uint32_t Alignment4; /**< Align the next member on a 64-bit boundary. */
2241 /** Array of pages. (cMaxPages in length)
2242 * The Id is the index into thist array.
2243 */
2244 PGMPOOLPAGE aPages[PGMPOOL_IDX_FIRST];
2245} PGMPOOL, *PPGMPOOL, **PPPGMPOOL;
2246AssertCompileMemberAlignment(PGMPOOL, iModifiedHead, 8);
2247AssertCompileMemberAlignment(PGMPOOL, aDirtyPages, 8);
2248AssertCompileMemberAlignment(PGMPOOL, cUsedPages, 8);
2249#ifdef VBOX_WITH_STATISTICS
2250AssertCompileMemberAlignment(PGMPOOL, StatAlloc, 8);
2251#endif
2252AssertCompileMemberAlignment(PGMPOOL, aPages, 8);
2253
2254
2255/** @def PGMPOOL_PAGE_2_PTR
2256 * Maps a pool page pool into the current context.
2257 *
2258 * @returns VBox status code.
2259 * @param a_pVM Pointer to the VM.
2260 * @param a_pPage The pool page.
2261 *
2262 * @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
2263 * small page window employeed by that function. Be careful.
2264 * @remark There is no need to assert on the result.
2265 */
2266#if defined(VBOX_STRICT) || 1 /* temporarily going strict here */
2267# define PGMPOOL_PAGE_2_PTR(a_pVM, a_pPage) pgmPoolMapPageStrict(a_pPage, __FUNCTION__)
2268DECLINLINE(void *) pgmPoolMapPageStrict(PPGMPOOLPAGE a_pPage, const char *pszCaller)
2269{
2270 RT_NOREF(pszCaller);
2271 AssertPtr(a_pPage);
2272 AssertMsg(RT_VALID_PTR(a_pPage->CTX_SUFF(pvPage)),
2273 ("enmKind=%d idx=%#x HCPhys=%RHp GCPhys=%RGp pvPageR3=%p pvPageR0=%p caller=%s\n",
2274 a_pPage->enmKind, a_pPage->idx, a_pPage->Core.Key, a_pPage->GCPhys, a_pPage->pvPageR3, a_pPage->pvPageR0, pszCaller));
2275 return a_pPage->CTX_SUFF(pvPage);
2276}
2277#else
2278# define PGMPOOL_PAGE_2_PTR(pVM, a_pPage) ((a_pPage)->CTX_SUFF(pvPage))
2279#endif
2280
2281
2282/** @def PGMPOOL_PAGE_2_PTR_V2
2283 * Maps a pool page pool into the current context, taking both VM and VMCPU.
2284 *
2285 * @returns VBox status code.
2286 * @param a_pVM Pointer to the VM.
2287 * @param a_pVCpu The current CPU.
2288 * @param a_pPage The pool page.
2289 *
2290 * @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
2291 * small page window employeed by that function. Be careful.
2292 * @remark There is no need to assert on the result.
2293 */
2294#define PGMPOOL_PAGE_2_PTR_V2(a_pVM, a_pVCpu, a_pPage) PGMPOOL_PAGE_2_PTR((a_pVM), (a_pPage))
2295
2296
2297/** @name Per guest page tracking data.
2298 * This is currently as a 16-bit word in the PGMPAGE structure, the idea though
2299 * is to use more bits for it and split it up later on. But for now we'll play
2300 * safe and change as little as possible.
2301 *
2302 * The 16-bit word has two parts:
2303 *
2304 * The first 14-bit forms the @a idx field. It is either the index of a page in
2305 * the shadow page pool, or and index into the extent list.
2306 *
2307 * The 2 topmost bits makes up the @a cRefs field, which counts the number of
2308 * shadow page pool references to the page. If cRefs equals
2309 * PGMPOOL_CREFS_PHYSEXT, then the @a idx field is an indext into the extent
2310 * (misnomer) table and not the shadow page pool.
2311 *
2312 * See PGM_PAGE_GET_TRACKING and PGM_PAGE_SET_TRACKING for how to get and set
2313 * the 16-bit word.
2314 *
2315 * @{ */
2316/** The shift count for getting to the cRefs part. */
2317#define PGMPOOL_TD_CREFS_SHIFT 14
2318/** The mask applied after shifting the tracking data down by
2319 * PGMPOOL_TD_CREFS_SHIFT. */
2320#define PGMPOOL_TD_CREFS_MASK 0x3
2321/** The cRefs value used to indicate that the idx is the head of a
2322 * physical cross reference list. */
2323#define PGMPOOL_TD_CREFS_PHYSEXT PGMPOOL_TD_CREFS_MASK
2324/** The shift used to get idx. */
2325#define PGMPOOL_TD_IDX_SHIFT 0
2326/** The mask applied to the idx after shifting down by PGMPOOL_TD_IDX_SHIFT. */
2327#define PGMPOOL_TD_IDX_MASK 0x3fff
2328/** The idx value when we're out of of PGMPOOLPHYSEXT entries or/and there are
2329 * simply too many mappings of this page. */
2330#define PGMPOOL_TD_IDX_OVERFLOWED PGMPOOL_TD_IDX_MASK
2331
2332/** @def PGMPOOL_TD_MAKE
2333 * Makes a 16-bit tracking data word.
2334 *
2335 * @returns tracking data.
2336 * @param cRefs The @a cRefs field. Must be within bounds!
2337 * @param idx The @a idx field. Must also be within bounds! */
2338#define PGMPOOL_TD_MAKE(cRefs, idx) ( ((cRefs) << PGMPOOL_TD_CREFS_SHIFT) | (idx) )
2339
2340/** @def PGMPOOL_TD_GET_CREFS
2341 * Get the @a cRefs field from a tracking data word.
2342 *
2343 * @returns The @a cRefs field
2344 * @param u16 The tracking data word.
2345 * @remarks This will only return 1 or PGMPOOL_TD_CREFS_PHYSEXT for a
2346 * non-zero @a u16. */
2347#define PGMPOOL_TD_GET_CREFS(u16) ( ((u16) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK )
2348
2349/** @def PGMPOOL_TD_GET_IDX
2350 * Get the @a idx field from a tracking data word.
2351 *
2352 * @returns The @a idx field
2353 * @param u16 The tracking data word. */
2354#define PGMPOOL_TD_GET_IDX(u16) ( ((u16) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK )
2355/** @} */
2356
2357
2358
2359/** @name A20 gate macros
2360 * @{ */
2361#define PGM_WITH_A20
2362#ifdef PGM_WITH_A20
2363# define PGM_A20_IS_ENABLED(a_pVCpu) ((a_pVCpu)->pgm.s.fA20Enabled)
2364# define PGM_A20_APPLY(a_pVCpu, a_GCPhys) ((a_GCPhys) & (a_pVCpu)->pgm.s.GCPhysA20Mask)
2365# define PGM_A20_APPLY_TO_VAR(a_pVCpu, a_GCPhysVar) \
2366 do { a_GCPhysVar &= (a_pVCpu)->pgm.s.GCPhysA20Mask; } while (0)
2367# define PGM_A20_ASSERT_MASKED(pVCpu, a_GCPhys) Assert(PGM_A20_APPLY(pVCpu, a_GCPhys) == (a_GCPhys))
2368#else
2369# define PGM_A20_IS_ENABLED(a_pVCpu) (true)
2370# define PGM_A20_APPLY(a_pVCpu, a_GCPhys) (a_GCPhys)
2371# define PGM_A20_APPLY_TO_VAR(a_pVCpu, a_GCPhysVar) do { } while (0)
2372# define PGM_A20_ASSERT_MASKED(pVCpu, a_GCPhys) do { } while (0)
2373#endif
2374/** @} */
2375
2376
2377/**
2378 * Roots and anchors for trees and list employing self relative offsets as
2379 * pointers.
2380 *
2381 * When using self-relative offsets instead of pointers, the offsets needs to be
2382 * the same in all offsets. Thus the roots and anchors needs to live on the
2383 * hyper heap just like the nodes.
2384 */
2385typedef struct PGMTREES
2386{
2387 /** List of physical access handler types (offset pointers) of type
2388 * PGMPHYSHANDLERTYPEINT. This is needed for relocations. */
2389 RTLISTOFF32ANCHOR HeadPhysHandlerTypes;
2390 /** Physical access handlers (AVL range+offsetptr tree). */
2391 AVLROGCPHYSTREE PhysHandlers;
2392} PGMTREES;
2393/** Pointer to PGM trees. */
2394typedef PGMTREES *PPGMTREES;
2395
2396
2397/**
2398 * Page fault guest state for the AMD64 paging mode.
2399 */
2400typedef struct PGMPTWALKCORE
2401{
2402 /** The guest virtual address that is being resolved by the walk
2403 * (input). */
2404 RTGCPTR GCPtr;
2405
2406 /** The guest physical address that is the result of the walk.
2407 * @remarks only valid if fSucceeded is set. */
2408 RTGCPHYS GCPhys;
2409
2410 /** Set if the walk succeeded, i.d. GCPhys is valid. */
2411 bool fSucceeded;
2412 /** The level problem arrised at.
2413 * PTE is level 1, PDE is level 2, PDPE is level 3, PML4 is level 4, CR3 is
2414 * level 8. This is 0 on success. */
2415 uint8_t uLevel;
2416 /** Set if the page isn't present. */
2417 bool fNotPresent;
2418 /** Encountered a bad physical address. */
2419 bool fBadPhysAddr;
2420 /** Set if there was reserved bit violations. */
2421 bool fRsvdError;
2422 /** Set if it involves a big page (2/4 MB). */
2423 bool fBigPage;
2424 /** Set if it involves a gigantic page (1 GB). */
2425 bool fGigantPage;
2426 /** The effective X86_PTE_US flag for the address. */
2427 bool fEffectiveUS;
2428 /** The effective X86_PTE_RW flag for the address. */
2429 bool fEffectiveRW;
2430 /** The effective X86_PTE_NX flag for the address. */
2431 bool fEffectiveNX;
2432 bool afPadding1[2];
2433 /** Effective flags thus far: RW, US, PWT, PCD, A, ~NX >> 63.
2434 * The NX bit is inverted and shifted down 63 places to bit 0. */
2435 uint32_t fEffective;
2436} PGMPTWALKCORE;
2437
2438/** @name PGMPTWALKCORE::fEffective bits.
2439 * @{ */
2440/** Effective execute bit (!NX). */
2441#define PGMPTWALK_EFF_X UINT32_C(1)
2442/** Effective write access bit. */
2443#define PGMPTWALK_EFF_RW X86_PTE_RW
2444/** Effective user-mode access bit. */
2445#define PGMPTWALK_EFF_US X86_PTE_US
2446/** Effective write through cache bit. */
2447#define PGMPTWALK_EFF_PWT X86_PTE_PWT
2448/** Effective cache disabled bit. */
2449#define PGMPTWALK_EFF_PCD X86_PTE_PCD
2450/** Effective accessed bit. */
2451#define PGMPTWALK_EFF_A X86_PTE_A
2452/** The dirty bit of the final entry. */
2453#define PGMPTWALK_EFF_D X86_PTE_D
2454/** The PAT bit of the final entry. */
2455#define PGMPTWALK_EFF_PAT X86_PTE_PAT
2456/** The global bit of the final entry. */
2457#define PGMPTWALK_EFF_G X86_PTE_G
2458/** @} */
2459
2460
2461/**
2462 * Guest page table walk for the AMD64 mode.
2463 */
2464typedef struct PGMPTWALKGSTAMD64
2465{
2466 /** The common core. */
2467 PGMPTWALKCORE Core;
2468
2469 PX86PML4 pPml4;
2470 PX86PML4E pPml4e;
2471 X86PML4E Pml4e;
2472
2473 PX86PDPT pPdpt;
2474 PX86PDPE pPdpe;
2475 X86PDPE Pdpe;
2476
2477 PX86PDPAE pPd;
2478 PX86PDEPAE pPde;
2479 X86PDEPAE Pde;
2480
2481 PX86PTPAE pPt;
2482 PX86PTEPAE pPte;
2483 X86PTEPAE Pte;
2484} PGMPTWALKGSTAMD64;
2485/** Pointer to a AMD64 guest page table walk. */
2486typedef PGMPTWALKGSTAMD64 *PPGMPTWALKGSTAMD64;
2487/** Pointer to a const AMD64 guest page table walk. */
2488typedef PGMPTWALKGSTAMD64 const *PCPGMPTWALKGSTAMD64;
2489
2490/**
2491 * Guest page table walk for the PAE mode.
2492 */
2493typedef struct PGMPTWALKGSTPAE
2494{
2495 /** The common core. */
2496 PGMPTWALKCORE Core;
2497
2498 PX86PDPT pPdpt;
2499 PX86PDPE pPdpe;
2500 X86PDPE Pdpe;
2501
2502 PX86PDPAE pPd;
2503 PX86PDEPAE pPde;
2504 X86PDEPAE Pde;
2505
2506 PX86PTPAE pPt;
2507 PX86PTEPAE pPte;
2508 X86PTEPAE Pte;
2509} PGMPTWALKGSTPAE;
2510/** Pointer to a PAE guest page table walk. */
2511typedef PGMPTWALKGSTPAE *PPGMPTWALKGSTPAE;
2512/** Pointer to a const AMD64 guest page table walk. */
2513typedef PGMPTWALKGSTPAE const *PCPGMPTWALKGSTPAE;
2514
2515/**
2516 * Guest page table walk for the 32-bit mode.
2517 */
2518typedef struct PGMPTWALKGST32BIT
2519{
2520 /** The common core. */
2521 PGMPTWALKCORE Core;
2522
2523 PX86PD pPd;
2524 PX86PDE pPde;
2525 X86PDE Pde;
2526
2527 PX86PT pPt;
2528 PX86PTE pPte;
2529 X86PTE Pte;
2530} PGMPTWALKGST32BIT;
2531/** Pointer to a 32-bit guest page table walk. */
2532typedef PGMPTWALKGST32BIT *PPGMPTWALKGST32BIT;
2533/** Pointer to a const 32-bit guest page table walk. */
2534typedef PGMPTWALKGST32BIT const *PCPGMPTWALKGST32BIT;
2535
2536/**
2537 * Which part of PGMPTWALKGST that is valid.
2538 */
2539typedef enum PGMPTWALKGSTTYPE
2540{
2541 /** Customary invalid 0 value. */
2542 PGMPTWALKGSTTYPE_INVALID = 0,
2543 /** PGMPTWALKGST::u.Amd64 is valid. */
2544 PGMPTWALKGSTTYPE_AMD64,
2545 /** PGMPTWALKGST::u.Pae is valid. */
2546 PGMPTWALKGSTTYPE_PAE,
2547 /** PGMPTWALKGST::u.Legacy is valid. */
2548 PGMPTWALKGSTTYPE_32BIT,
2549 /** Customary 32-bit type hack. */
2550 PGMPTWALKGSTTYPE_32BIT_HACK = 0x7fff0000
2551} PGMPTWALKGSTTYPE;
2552
2553/**
2554 * Combined guest page table walk result.
2555 */
2556typedef struct PGMPTWALKGST
2557{
2558 union
2559 {
2560 /** The page walker core - always valid. */
2561 PGMPTWALKCORE Core;
2562 /** The page walker for AMD64. */
2563 PGMPTWALKGSTAMD64 Amd64;
2564 /** The page walker for PAE (32-bit). */
2565 PGMPTWALKGSTPAE Pae;
2566 /** The page walker for 32-bit paging (called legacy due to C naming
2567 * convension). */
2568 PGMPTWALKGST32BIT Legacy;
2569 } u;
2570 /** Indicates which part of the union is valid. */
2571 PGMPTWALKGSTTYPE enmType;
2572} PGMPTWALKGST;
2573/** Pointer to a combined guest page table walk result. */
2574typedef PGMPTWALKGST *PPGMPTWALKGST;
2575/** Pointer to a read-only combined guest page table walk result. */
2576typedef PGMPTWALKGST const *PCPGMPTWALKGST;
2577
2578
2579/** @name Paging mode macros
2580 * @{
2581 */
2582#ifdef IN_RING3
2583# define PGM_CTX(a,b) a##R3##b
2584# define PGM_CTX_STR(a,b) a "R3" b
2585# define PGM_CTX_DECL(type) DECLCALLBACK(type)
2586#elif defined(IN_RING0)
2587# define PGM_CTX(a,b) a##R0##b
2588# define PGM_CTX_STR(a,b) a "R0" b
2589# define PGM_CTX_DECL(type) VMMDECL(type)
2590#else
2591# error "Not IN_RING3 or IN_RING0!"
2592#endif
2593
2594#define PGM_GST_NAME_REAL(name) PGM_CTX(pgm,GstReal##name)
2595#define PGM_GST_NAME_RC_REAL_STR(name) "pgmRCGstReal" #name
2596#define PGM_GST_NAME_R0_REAL_STR(name) "pgmR0GstReal" #name
2597#define PGM_GST_NAME_PROT(name) PGM_CTX(pgm,GstProt##name)
2598#define PGM_GST_NAME_RC_PROT_STR(name) "pgmRCGstProt" #name
2599#define PGM_GST_NAME_R0_PROT_STR(name) "pgmR0GstProt" #name
2600#define PGM_GST_NAME_32BIT(name) PGM_CTX(pgm,Gst32Bit##name)
2601#define PGM_GST_NAME_RC_32BIT_STR(name) "pgmRCGst32Bit" #name
2602#define PGM_GST_NAME_R0_32BIT_STR(name) "pgmR0Gst32Bit" #name
2603#define PGM_GST_NAME_PAE(name) PGM_CTX(pgm,GstPAE##name)
2604#define PGM_GST_NAME_RC_PAE_STR(name) "pgmRCGstPAE" #name
2605#define PGM_GST_NAME_R0_PAE_STR(name) "pgmR0GstPAE" #name
2606#define PGM_GST_NAME_AMD64(name) PGM_CTX(pgm,GstAMD64##name)
2607#define PGM_GST_NAME_RC_AMD64_STR(name) "pgmRCGstAMD64" #name
2608#define PGM_GST_NAME_R0_AMD64_STR(name) "pgmR0GstAMD64" #name
2609#define PGM_GST_DECL(type, name) PGM_CTX_DECL(type) PGM_GST_NAME(name)
2610
2611#define PGM_SHW_NAME_32BIT(name) PGM_CTX(pgm,Shw32Bit##name)
2612#define PGM_SHW_NAME_RC_32BIT_STR(name) "pgmRCShw32Bit" #name
2613#define PGM_SHW_NAME_R0_32BIT_STR(name) "pgmR0Shw32Bit" #name
2614#define PGM_SHW_NAME_PAE(name) PGM_CTX(pgm,ShwPAE##name)
2615#define PGM_SHW_NAME_RC_PAE_STR(name) "pgmRCShwPAE" #name
2616#define PGM_SHW_NAME_R0_PAE_STR(name) "pgmR0ShwPAE" #name
2617#define PGM_SHW_NAME_AMD64(name) PGM_CTX(pgm,ShwAMD64##name)
2618#define PGM_SHW_NAME_RC_AMD64_STR(name) "pgmRCShwAMD64" #name
2619#define PGM_SHW_NAME_R0_AMD64_STR(name) "pgmR0ShwAMD64" #name
2620#define PGM_SHW_NAME_NESTED_32BIT(name) PGM_CTX(pgm,ShwNested32Bit##name)
2621#define PGM_SHW_NAME_RC_NESTED_32BIT_STR(name) "pgmRCShwNested32Bit" #name
2622#define PGM_SHW_NAME_R0_NESTED_32BIT_STR(name) "pgmR0ShwNested32Bit" #name
2623#define PGM_SHW_NAME_NESTED_PAE(name) PGM_CTX(pgm,ShwNestedPAE##name)
2624#define PGM_SHW_NAME_RC_NESTED_PAE_STR(name) "pgmRCShwNestedPAE" #name
2625#define PGM_SHW_NAME_R0_NESTED_PAE_STR(name) "pgmR0ShwNestedPAE" #name
2626#define PGM_SHW_NAME_NESTED_AMD64(name) PGM_CTX(pgm,ShwNestedAMD64##name)
2627#define PGM_SHW_NAME_RC_NESTED_AMD64_STR(name) "pgmRCShwNestedAMD64" #name
2628#define PGM_SHW_NAME_R0_NESTED_AMD64_STR(name) "pgmR0ShwNestedAMD64" #name
2629#define PGM_SHW_NAME_EPT(name) PGM_CTX(pgm,ShwEPT##name)
2630#define PGM_SHW_NAME_RC_EPT_STR(name) "pgmRCShwEPT" #name
2631#define PGM_SHW_NAME_R0_EPT_STR(name) "pgmR0ShwEPT" #name
2632#define PGM_SHW_NAME_NONE(name) PGM_CTX(pgm,ShwNone##name)
2633#define PGM_SHW_NAME_RC_NONE_STR(name) "pgmRCShwNone" #name
2634#define PGM_SHW_NAME_R0_NONE_STR(name) "pgmR0ShwNone" #name
2635#define PGM_SHW_DECL(type, name) PGM_CTX_DECL(type) PGM_SHW_NAME(name)
2636
2637/* Shw_Gst */
2638#define PGM_BTH_NAME_32BIT_REAL(name) PGM_CTX(pgm,Bth32BitReal##name)
2639#define PGM_BTH_NAME_32BIT_PROT(name) PGM_CTX(pgm,Bth32BitProt##name)
2640#define PGM_BTH_NAME_32BIT_32BIT(name) PGM_CTX(pgm,Bth32Bit32Bit##name)
2641#define PGM_BTH_NAME_PAE_REAL(name) PGM_CTX(pgm,BthPAEReal##name)
2642#define PGM_BTH_NAME_PAE_PROT(name) PGM_CTX(pgm,BthPAEProt##name)
2643#define PGM_BTH_NAME_PAE_32BIT(name) PGM_CTX(pgm,BthPAE32Bit##name)
2644#define PGM_BTH_NAME_PAE_PAE(name) PGM_CTX(pgm,BthPAEPAE##name)
2645#define PGM_BTH_NAME_AMD64_PROT(name) PGM_CTX(pgm,BthAMD64Prot##name)
2646#define PGM_BTH_NAME_AMD64_AMD64(name) PGM_CTX(pgm,BthAMD64AMD64##name)
2647#define PGM_BTH_NAME_NESTED_32BIT_REAL(name) PGM_CTX(pgm,BthNested32BitReal##name)
2648#define PGM_BTH_NAME_NESTED_32BIT_PROT(name) PGM_CTX(pgm,BthNested32BitProt##name)
2649#define PGM_BTH_NAME_NESTED_32BIT_32BIT(name) PGM_CTX(pgm,BthNested32Bit32Bit##name)
2650#define PGM_BTH_NAME_NESTED_32BIT_PAE(name) PGM_CTX(pgm,BthNested32BitPAE##name)
2651#define PGM_BTH_NAME_NESTED_32BIT_AMD64(name) PGM_CTX(pgm,BthNested32BitAMD64##name)
2652#define PGM_BTH_NAME_NESTED_PAE_REAL(name) PGM_CTX(pgm,BthNestedPAEReal##name)
2653#define PGM_BTH_NAME_NESTED_PAE_PROT(name) PGM_CTX(pgm,BthNestedPAEProt##name)
2654#define PGM_BTH_NAME_NESTED_PAE_32BIT(name) PGM_CTX(pgm,BthNestedPAE32Bit##name)
2655#define PGM_BTH_NAME_NESTED_PAE_PAE(name) PGM_CTX(pgm,BthNestedPAEPAE##name)
2656#define PGM_BTH_NAME_NESTED_PAE_AMD64(name) PGM_CTX(pgm,BthNestedPAEAMD64##name)
2657#define PGM_BTH_NAME_NESTED_AMD64_REAL(name) PGM_CTX(pgm,BthNestedAMD64Real##name)
2658#define PGM_BTH_NAME_NESTED_AMD64_PROT(name) PGM_CTX(pgm,BthNestedAMD64Prot##name)
2659#define PGM_BTH_NAME_NESTED_AMD64_32BIT(name) PGM_CTX(pgm,BthNestedAMD6432Bit##name)
2660#define PGM_BTH_NAME_NESTED_AMD64_PAE(name) PGM_CTX(pgm,BthNestedAMD64PAE##name)
2661#define PGM_BTH_NAME_NESTED_AMD64_AMD64(name) PGM_CTX(pgm,BthNestedAMD64AMD64##name)
2662#define PGM_BTH_NAME_EPT_REAL(name) PGM_CTX(pgm,BthEPTReal##name)
2663#define PGM_BTH_NAME_EPT_PROT(name) PGM_CTX(pgm,BthEPTProt##name)
2664#define PGM_BTH_NAME_EPT_32BIT(name) PGM_CTX(pgm,BthEPT32Bit##name)
2665#define PGM_BTH_NAME_EPT_PAE(name) PGM_CTX(pgm,BthEPTPAE##name)
2666#define PGM_BTH_NAME_EPT_AMD64(name) PGM_CTX(pgm,BthEPTAMD64##name)
2667#define PGM_BTH_NAME_NONE_REAL(name) PGM_CTX(pgm,BthNoneReal##name)
2668#define PGM_BTH_NAME_NONE_PROT(name) PGM_CTX(pgm,BthNoneProt##name)
2669#define PGM_BTH_NAME_NONE_32BIT(name) PGM_CTX(pgm,BthNone32Bit##name)
2670#define PGM_BTH_NAME_NONE_PAE(name) PGM_CTX(pgm,BthNonePAE##name)
2671#define PGM_BTH_NAME_NONE_AMD64(name) PGM_CTX(pgm,BthNoneAMD64##name)
2672
2673#define PGM_BTH_NAME_RC_32BIT_REAL_STR(name) "pgmRCBth32BitReal" #name
2674#define PGM_BTH_NAME_RC_32BIT_PROT_STR(name) "pgmRCBth32BitProt" #name
2675#define PGM_BTH_NAME_RC_32BIT_32BIT_STR(name) "pgmRCBth32Bit32Bit" #name
2676#define PGM_BTH_NAME_RC_PAE_REAL_STR(name) "pgmRCBthPAEReal" #name
2677#define PGM_BTH_NAME_RC_PAE_PROT_STR(name) "pgmRCBthPAEProt" #name
2678#define PGM_BTH_NAME_RC_PAE_32BIT_STR(name) "pgmRCBthPAE32Bit" #name
2679#define PGM_BTH_NAME_RC_PAE_PAE_STR(name) "pgmRCBthPAEPAE" #name
2680#define PGM_BTH_NAME_RC_AMD64_AMD64_STR(name) "pgmRCBthAMD64AMD64" #name
2681#define PGM_BTH_NAME_RC_NESTED_32BIT_REAL_STR(name) "pgmRCBthNested32BitReal" #name
2682#define PGM_BTH_NAME_RC_NESTED_32BIT_PROT_STR(name) "pgmRCBthNested32BitProt" #name
2683#define PGM_BTH_NAME_RC_NESTED_32BIT_32BIT_STR(name) "pgmRCBthNested32Bit32Bit" #name
2684#define PGM_BTH_NAME_RC_NESTED_32BIT_PAE_STR(name) "pgmRCBthNested32BitPAE" #name
2685#define PGM_BTH_NAME_RC_NESTED_32BIT_AMD64_STR(name) "pgmRCBthNested32BitAMD64" #name
2686#define PGM_BTH_NAME_RC_NESTED_PAE_REAL_STR(name) "pgmRCBthNestedPAEReal" #name
2687#define PGM_BTH_NAME_RC_NESTED_PAE_PROT_STR(name) "pgmRCBthNestedPAEProt" #name
2688#define PGM_BTH_NAME_RC_NESTED_PAE_32BIT_STR(name) "pgmRCBthNestedPAE32Bit" #name
2689#define PGM_BTH_NAME_RC_NESTED_PAE_PAE_STR(name) "pgmRCBthNestedPAEPAE" #name
2690#define PGM_BTH_NAME_RC_NESTED_PAE_AMD64_STR(name) "pgmRCBthNestedPAEAMD64" #name
2691#define PGM_BTH_NAME_RC_NESTED_AMD64_REAL_STR(name) "pgmRCBthNestedAMD64Real" #name
2692#define PGM_BTH_NAME_RC_NESTED_AMD64_PROT_STR(name) "pgmRCBthNestedAMD64Prot" #name
2693#define PGM_BTH_NAME_RC_NESTED_AMD64_32BIT_STR(name) "pgmRCBthNestedAMD6432Bit" #name
2694#define PGM_BTH_NAME_RC_NESTED_AMD64_PAE_STR(name) "pgmRCBthNestedAMD64PAE" #name
2695#define PGM_BTH_NAME_RC_NESTED_AMD64_AMD64_STR(name) "pgmRCBthNestedAMD64AMD64" #name
2696#define PGM_BTH_NAME_RC_EPT_REAL_STR(name) "pgmRCBthEPTReal" #name
2697#define PGM_BTH_NAME_RC_EPT_PROT_STR(name) "pgmRCBthEPTProt" #name
2698#define PGM_BTH_NAME_RC_EPT_32BIT_STR(name) "pgmRCBthEPT32Bit" #name
2699#define PGM_BTH_NAME_RC_EPT_PAE_STR(name) "pgmRCBthEPTPAE" #name
2700#define PGM_BTH_NAME_RC_EPT_AMD64_STR(name) "pgmRCBthEPTAMD64" #name
2701
2702#define PGM_BTH_NAME_R0_32BIT_REAL_STR(name) "pgmR0Bth32BitReal" #name
2703#define PGM_BTH_NAME_R0_32BIT_PROT_STR(name) "pgmR0Bth32BitProt" #name
2704#define PGM_BTH_NAME_R0_32BIT_32BIT_STR(name) "pgmR0Bth32Bit32Bit" #name
2705#define PGM_BTH_NAME_R0_PAE_REAL_STR(name) "pgmR0BthPAEReal" #name
2706#define PGM_BTH_NAME_R0_PAE_PROT_STR(name) "pgmR0BthPAEProt" #name
2707#define PGM_BTH_NAME_R0_PAE_32BIT_STR(name) "pgmR0BthPAE32Bit" #name
2708#define PGM_BTH_NAME_R0_PAE_PAE_STR(name) "pgmR0BthPAEPAE" #name
2709#define PGM_BTH_NAME_R0_AMD64_PROT_STR(name) "pgmR0BthAMD64Prot" #name
2710#define PGM_BTH_NAME_R0_AMD64_AMD64_STR(name) "pgmR0BthAMD64AMD64" #name
2711#define PGM_BTH_NAME_R0_NESTED_32BIT_REAL_STR(name) "pgmR0BthNested32BitReal" #name
2712#define PGM_BTH_NAME_R0_NESTED_32BIT_PROT_STR(name) "pgmR0BthNested32BitProt" #name
2713#define PGM_BTH_NAME_R0_NESTED_32BIT_32BIT_STR(name) "pgmR0BthNested32Bit32Bit" #name
2714#define PGM_BTH_NAME_R0_NESTED_32BIT_PAE_STR(name) "pgmR0BthNested32BitPAE" #name
2715#define PGM_BTH_NAME_R0_NESTED_32BIT_AMD64_STR(name) "pgmR0BthNested32BitAMD64" #name
2716#define PGM_BTH_NAME_R0_NESTED_PAE_REAL_STR(name) "pgmR0BthNestedPAEReal" #name
2717#define PGM_BTH_NAME_R0_NESTED_PAE_PROT_STR(name) "pgmR0BthNestedPAEProt" #name
2718#define PGM_BTH_NAME_R0_NESTED_PAE_32BIT_STR(name) "pgmR0BthNestedPAE32Bit" #name
2719#define PGM_BTH_NAME_R0_NESTED_PAE_PAE_STR(name) "pgmR0BthNestedPAEPAE" #name
2720#define PGM_BTH_NAME_R0_NESTED_PAE_AMD64_STR(name) "pgmR0BthNestedPAEAMD64" #name
2721#define PGM_BTH_NAME_R0_NESTED_AMD64_REAL_STR(name) "pgmR0BthNestedAMD64Real" #name
2722#define PGM_BTH_NAME_R0_NESTED_AMD64_PROT_STR(name) "pgmR0BthNestedAMD64Prot" #name
2723#define PGM_BTH_NAME_R0_NESTED_AMD64_32BIT_STR(name) "pgmR0BthNestedAMD6432Bit" #name
2724#define PGM_BTH_NAME_R0_NESTED_AMD64_PAE_STR(name) "pgmR0BthNestedAMD64PAE" #name
2725#define PGM_BTH_NAME_R0_NESTED_AMD64_AMD64_STR(name) "pgmR0BthNestedAMD64AMD64" #name
2726#define PGM_BTH_NAME_R0_EPT_REAL_STR(name) "pgmR0BthEPTReal" #name
2727#define PGM_BTH_NAME_R0_EPT_PROT_STR(name) "pgmR0BthEPTProt" #name
2728#define PGM_BTH_NAME_R0_EPT_32BIT_STR(name) "pgmR0BthEPT32Bit" #name
2729#define PGM_BTH_NAME_R0_EPT_PAE_STR(name) "pgmR0BthEPTPAE" #name
2730#define PGM_BTH_NAME_R0_EPT_AMD64_STR(name) "pgmR0BthEPTAMD64" #name
2731
2732#define PGM_BTH_DECL(type, name) PGM_CTX_DECL(type) PGM_BTH_NAME(name)
2733/** @} */
2734
2735
2736/**
2737 * Function pointers for guest paging.
2738 */
2739typedef struct PGMMODEDATAGST
2740{
2741 /** The guest mode type. */
2742 uint32_t uType;
2743 DECLCALLBACKMEMBER(int, pfnGetPage,(PVMCPUCC pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2744 DECLCALLBACKMEMBER(int, pfnModifyPage,(PVMCPUCC pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2745 DECLCALLBACKMEMBER(int, pfnGetPDE,(PVMCPUCC pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2746 DECLCALLBACKMEMBER(int, pfnEnter,(PVMCPUCC pVCpu, RTGCPHYS GCPhysCR3));
2747 DECLCALLBACKMEMBER(int, pfnExit,(PVMCPUCC pVCpu));
2748#ifdef IN_RING3
2749 DECLCALLBACKMEMBER(int, pfnRelocate,(PVMCPUCC pVCpu, RTGCPTR offDelta)); /**< Only in ring-3. */
2750#endif
2751} PGMMODEDATAGST;
2752
2753/** The length of g_aPgmGuestModeData. */
2754#ifdef VBOX_WITH_64_BITS_GUESTS
2755# define PGM_GUEST_MODE_DATA_ARRAY_SIZE (PGM_TYPE_AMD64 + 1)
2756#else
2757# define PGM_GUEST_MODE_DATA_ARRAY_SIZE (PGM_TYPE_PAE + 1)
2758#endif
2759/** The guest mode data array. */
2760extern PGMMODEDATAGST const g_aPgmGuestModeData[PGM_GUEST_MODE_DATA_ARRAY_SIZE];
2761
2762
2763/**
2764 * Function pointers for shadow paging.
2765 */
2766typedef struct PGMMODEDATASHW
2767{
2768 /** The shadow mode type. */
2769 uint32_t uType;
2770 DECLCALLBACKMEMBER(int, pfnGetPage,(PVMCPUCC pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2771 DECLCALLBACKMEMBER(int, pfnModifyPage,(PVMCPUCC pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags,
2772 uint64_t fMask, uint32_t fOpFlags));
2773 DECLCALLBACKMEMBER(int, pfnEnter,(PVMCPUCC pVCpu, bool fIs64BitsPagingMode));
2774 DECLCALLBACKMEMBER(int, pfnExit,(PVMCPUCC pVCpu));
2775#ifdef IN_RING3
2776 DECLCALLBACKMEMBER(int, pfnRelocate,(PVMCPUCC pVCpu, RTGCPTR offDelta)); /**< Only in ring-3. */
2777#endif
2778} PGMMODEDATASHW;
2779
2780/** The length of g_aPgmShadowModeData. */
2781#define PGM_SHADOW_MODE_DATA_ARRAY_SIZE PGM_TYPE_END
2782/** The shadow mode data array. */
2783extern PGMMODEDATASHW const g_aPgmShadowModeData[PGM_SHADOW_MODE_DATA_ARRAY_SIZE];
2784
2785
2786/**
2787 * Function pointers for guest+shadow paging.
2788 */
2789typedef struct PGMMODEDATABTH
2790{
2791 /** The shadow mode type. */
2792 uint32_t uShwType;
2793 /** The guest mode type. */
2794 uint32_t uGstType;
2795
2796 DECLCALLBACKMEMBER(int, pfnInvalidatePage,(PVMCPUCC pVCpu, RTGCPTR GCPtrPage));
2797 DECLCALLBACKMEMBER(int, pfnSyncCR3,(PVMCPUCC pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2798 DECLCALLBACKMEMBER(int, pfnPrefetchPage,(PVMCPUCC pVCpu, RTGCPTR GCPtrPage));
2799 DECLCALLBACKMEMBER(int, pfnVerifyAccessSyncPage,(PVMCPUCC pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
2800 DECLCALLBACKMEMBER(int, pfnMapCR3,(PVMCPUCC pVCpu, RTGCPHYS GCPhysCR3));
2801 DECLCALLBACKMEMBER(int, pfnUnmapCR3,(PVMCPUCC pVCpu));
2802 DECLCALLBACKMEMBER(int, pfnEnter,(PVMCPUCC pVCpu, RTGCPHYS GCPhysCR3));
2803#ifndef IN_RING3
2804 DECLCALLBACKMEMBER(int, pfnTrap0eHandler,(PVMCPUCC pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
2805#endif
2806#ifdef VBOX_STRICT
2807 DECLCALLBACKMEMBER(unsigned, pfnAssertCR3,(PVMCPUCC pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
2808#endif
2809} PGMMODEDATABTH;
2810
2811/** The length of g_aPgmBothModeData. */
2812#define PGM_BOTH_MODE_DATA_ARRAY_SIZE ((PGM_TYPE_END - PGM_TYPE_FIRST_SHADOW) * PGM_TYPE_END)
2813/** The guest+shadow mode data array. */
2814extern PGMMODEDATABTH const g_aPgmBothModeData[PGM_BOTH_MODE_DATA_ARRAY_SIZE];
2815
2816
2817#ifdef VBOX_WITH_STATISTICS
2818/**
2819 * PGM statistics.
2820 */
2821typedef struct PGMSTATS
2822{
2823 /* R3 only: */
2824 STAMCOUNTER StatR3DetectedConflicts; /**< R3: Number of times PGMR3MapHasConflicts() detected a conflict. */
2825 STAMPROFILE StatR3ResolveConflict; /**< R3: pgmR3SyncPTResolveConflict() profiling (includes the entire relocation). */
2826
2827 /* R3+RZ */
2828 STAMCOUNTER StatRZChunkR3MapTlbHits; /**< RC/R0: Ring-3/0 chunk mapper TLB hits. */
2829 STAMCOUNTER StatRZChunkR3MapTlbMisses; /**< RC/R0: Ring-3/0 chunk mapper TLB misses. */
2830 STAMCOUNTER StatRZPageMapTlbHits; /**< RC/R0: Ring-3/0 page mapper TLB hits. */
2831 STAMCOUNTER StatRZPageMapTlbMisses; /**< RC/R0: Ring-3/0 page mapper TLB misses. */
2832 STAMCOUNTER StatPageMapTlbFlushes; /**< ALL: Ring-3/0 page mapper TLB flushes. */
2833 STAMCOUNTER StatPageMapTlbFlushEntry; /**< ALL: Ring-3/0 page mapper TLB flushes. */
2834 STAMCOUNTER StatR3ChunkR3MapTlbHits; /**< R3: Ring-3/0 chunk mapper TLB hits. */
2835 STAMCOUNTER StatR3ChunkR3MapTlbMisses; /**< R3: Ring-3/0 chunk mapper TLB misses. */
2836 STAMCOUNTER StatR3PageMapTlbHits; /**< R3: Ring-3/0 page mapper TLB hits. */
2837 STAMCOUNTER StatR3PageMapTlbMisses; /**< R3: Ring-3/0 page mapper TLB misses. */
2838 STAMCOUNTER StatRZRamRangeTlbHits; /**< RC/R0: RAM range TLB hits. */
2839 STAMCOUNTER StatRZRamRangeTlbMisses; /**< RC/R0: RAM range TLB misses. */
2840 STAMCOUNTER StatR3RamRangeTlbHits; /**< R3: RAM range TLB hits. */
2841 STAMCOUNTER StatR3RamRangeTlbMisses; /**< R3: RAM range TLB misses. */
2842 STAMCOUNTER StatR3PhysHandlerReset; /**< R3: The number of times PGMHandlerPhysicalReset is called. */
2843 STAMCOUNTER StatRZPhysHandlerReset; /**< RC/R0: The number of times PGMHandlerPhysicalReset is called. */
2844 STAMCOUNTER StatR3PhysHandlerLookupHits; /**< R3: Number of cache hits when looking up physical handlers. */
2845 STAMCOUNTER StatR3PhysHandlerLookupMisses; /**< R3: Number of cache misses when looking up physical handlers. */
2846 STAMCOUNTER StatRZPhysHandlerLookupHits; /**< RC/R0: Number of cache hits when lookup up physical handlers. */
2847 STAMCOUNTER StatRZPhysHandlerLookupMisses; /**< RC/R0: Number of cache misses when looking up physical handlers */
2848 STAMCOUNTER StatRZPageReplaceShared; /**< RC/R0: Times a shared page has been replaced by a private one. */
2849 STAMCOUNTER StatRZPageReplaceZero; /**< RC/R0: Times the zero page has been replaced by a private one. */
2850/// @todo STAMCOUNTER StatRZPageHandyAllocs; /**< RC/R0: The number of times we've executed GMMR3AllocateHandyPages. */
2851 STAMCOUNTER StatR3PageReplaceShared; /**< R3: Times a shared page has been replaced by a private one. */
2852 STAMCOUNTER StatR3PageReplaceZero; /**< R3: Times the zero page has been replaced by a private one. */
2853/// @todo STAMCOUNTER StatR3PageHandyAllocs; /**< R3: The number of times we've executed GMMR3AllocateHandyPages. */
2854
2855 /* RC only: */
2856 STAMCOUNTER StatRCInvlPgConflict; /**< RC: Number of times PGMInvalidatePage() detected a mapping conflict. */
2857 STAMCOUNTER StatRCInvlPgSyncMonCR3; /**< RC: Number of times PGMInvalidatePage() ran into PGM_SYNC_MONITOR_CR3. */
2858
2859 STAMCOUNTER StatRZPhysRead;
2860 STAMCOUNTER StatRZPhysReadBytes;
2861 STAMCOUNTER StatRZPhysWrite;
2862 STAMCOUNTER StatRZPhysWriteBytes;
2863 STAMCOUNTER StatR3PhysRead;
2864 STAMCOUNTER StatR3PhysReadBytes;
2865 STAMCOUNTER StatR3PhysWrite;
2866 STAMCOUNTER StatR3PhysWriteBytes;
2867 STAMCOUNTER StatRCPhysRead;
2868 STAMCOUNTER StatRCPhysReadBytes;
2869 STAMCOUNTER StatRCPhysWrite;
2870 STAMCOUNTER StatRCPhysWriteBytes;
2871
2872 STAMCOUNTER StatRZPhysSimpleRead;
2873 STAMCOUNTER StatRZPhysSimpleReadBytes;
2874 STAMCOUNTER StatRZPhysSimpleWrite;
2875 STAMCOUNTER StatRZPhysSimpleWriteBytes;
2876 STAMCOUNTER StatR3PhysSimpleRead;
2877 STAMCOUNTER StatR3PhysSimpleReadBytes;
2878 STAMCOUNTER StatR3PhysSimpleWrite;
2879 STAMCOUNTER StatR3PhysSimpleWriteBytes;
2880 STAMCOUNTER StatRCPhysSimpleRead;
2881 STAMCOUNTER StatRCPhysSimpleReadBytes;
2882 STAMCOUNTER StatRCPhysSimpleWrite;
2883 STAMCOUNTER StatRCPhysSimpleWriteBytes;
2884
2885 STAMCOUNTER StatTrackVirgin; /**< The number of first time shadowings. */
2886 STAMCOUNTER StatTrackAliased; /**< The number of times switching to cRef2, i.e. the page is being shadowed by two PTs. */
2887 STAMCOUNTER StatTrackAliasedMany; /**< The number of times we're tracking using cRef2. */
2888 STAMCOUNTER StatTrackAliasedLots; /**< The number of times we're hitting pages which has overflowed cRef2. */
2889 STAMCOUNTER StatTrackNoExtentsLeft; /**< The number of times the extent list was exhausted. */
2890 STAMCOUNTER StatTrackOverflows; /**< The number of times the extent list grows to long. */
2891 STAMPROFILE StatTrackDeref; /**< Profiling of SyncPageWorkerTrackDeref (expensive). */
2892
2893 /** Time spent by the host OS for large page allocation. */
2894 STAMPROFILE StatAllocLargePage;
2895 /** Time spent clearing the newly allocated large pages. */
2896 STAMPROFILE StatClearLargePage;
2897 /** The number of times allocating a large pages takes more than the allowed period. */
2898 STAMCOUNTER StatLargePageOverflow;
2899 /** pgmPhysIsValidLargePage profiling - R3 */
2900 STAMPROFILE StatR3IsValidLargePage;
2901 /** pgmPhysIsValidLargePage profiling - RZ*/
2902 STAMPROFILE StatRZIsValidLargePage;
2903
2904 STAMPROFILE StatChunkAging;
2905 STAMPROFILE StatChunkFindCandidate;
2906 STAMPROFILE StatChunkUnmap;
2907 STAMPROFILE StatChunkMap;
2908} PGMSTATS;
2909#endif /* VBOX_WITH_STATISTICS */
2910
2911
2912/**
2913 * PGM Data (part of VM)
2914 */
2915typedef struct PGM
2916{
2917 /** @cfgm{/RamPreAlloc, boolean, false}
2918 * Indicates whether the base RAM should all be allocated before starting
2919 * the VM (default), or if it should be allocated when first written to.
2920 */
2921 bool fRamPreAlloc;
2922 /** Indicates whether write monitoring is currently in use.
2923 * This is used to prevent conflicts between live saving and page sharing
2924 * detection. */
2925 bool fPhysWriteMonitoringEngaged;
2926 /** Set if the CPU has less than 52-bit physical address width.
2927 * This is used */
2928 bool fLessThan52PhysicalAddressBits;
2929 /** Set when nested paging is active.
2930 * This is meant to save calls to HMIsNestedPagingActive and let the
2931 * compilers optimize the code better. Whether we use nested paging or
2932 * not is something we find out during VMM initialization and we won't
2933 * change this later on. */
2934 bool fNestedPaging;
2935 /** The host paging mode. (This is what SUPLib reports.) */
2936 SUPPAGINGMODE enmHostMode;
2937 /** We're not in a state which permits writes to guest memory.
2938 * (Only used in strict builds.) */
2939 bool fNoMorePhysWrites;
2940 /** @cfgm{/PageFusionAllowed, boolean, false}
2941 * Whether page fusion is allowed. */
2942 bool fPageFusionAllowed;
2943 /** @cfgm{/PGM/PciPassThrough, boolean, false}
2944 * Whether PCI passthrough is enabled. */
2945 bool fPciPassthrough;
2946 /** The number of MMIO2 regions (serves as the next MMIO2 ID). */
2947 uint8_t cMmio2Regions;
2948 /** Restore original ROM page content when resetting after loading state.
2949 * The flag is set by pgmR3LoadRomRanges and cleared at reset. This
2950 * enables the VM to start using an updated ROM without requiring powering
2951 * down the VM, just rebooting or resetting it. */
2952 bool fRestoreRomPagesOnReset;
2953 /** Whether to automatically clear all RAM pages on reset. */
2954 bool fZeroRamPagesOnReset;
2955 /** Alignment padding. */
2956 bool afAlignment3[7];
2957
2958 /** Indicates that PGMR3FinalizeMappings has been called and that further
2959 * PGMR3MapIntermediate calls will be rejected. */
2960 bool fFinalizedMappings;
2961 /** If set no conflict checks are required. */
2962 bool fMappingsFixed;
2963 /** If set if restored as fixed but we were unable to re-fixate at the old
2964 * location because of room or address incompatibilities. */
2965 bool fMappingsFixedRestored;
2966 /** Size of fixed mapping.
2967 * This is valid if either fMappingsFixed or fMappingsFixedRestored is set. */
2968 uint32_t cbMappingFixed;
2969 /** Generation ID for the RAM ranges. This member is incremented everytime
2970 * a RAM range is linked or unlinked. */
2971 uint32_t volatile idRamRangesGen;
2972
2973 /** Base address (GC) of fixed mapping.
2974 * This is valid if either fMappingsFixed or fMappingsFixedRestored is set. */
2975 RTGCPTR GCPtrMappingFixed;
2976 /** The address of the previous RAM range mapping. */
2977 RTGCPTR GCPtrPrevRamRangeMapping;
2978
2979 /** Physical access handler type for ROM protection. */
2980 PGMPHYSHANDLERTYPE hRomPhysHandlerType;
2981 /** Alignment padding. */
2982 uint32_t u32Padding;
2983
2984 /** 4 MB page mask; 32 or 36 bits depending on PSE-36 (identical for all VCPUs) */
2985 RTGCPHYS GCPhys4MBPSEMask;
2986 /** Mask containing the invalid bits of a guest physical address.
2987 * @remarks this does not stop at bit 52. */
2988 RTGCPHYS GCPhysInvAddrMask;
2989
2990
2991 /** RAM range TLB for R3. */
2992 R3PTRTYPE(PPGMRAMRANGE) apRamRangesTlbR3[PGM_RAMRANGE_TLB_ENTRIES];
2993 /** Pointer to the list of RAM ranges (Phys GC -> Phys HC conversion) - for R3.
2994 * This is sorted by physical address and contains no overlapping ranges. */
2995 R3PTRTYPE(PPGMRAMRANGE) pRamRangesXR3;
2996 /** Root of the RAM range search tree for ring-3. */
2997 R3PTRTYPE(PPGMRAMRANGE) pRamRangeTreeR3;
2998 /** PGM offset based trees - R3 Ptr. */
2999 R3PTRTYPE(PPGMTREES) pTreesR3;
3000 /** Caching the last physical handler we looked up in R3. */
3001 R3PTRTYPE(PPGMPHYSHANDLER) pLastPhysHandlerR3;
3002 /** Shadow Page Pool - R3 Ptr. */
3003 R3PTRTYPE(PPGMPOOL) pPoolR3;
3004#ifndef PGM_WITHOUT_MAPPINGS
3005 /** Linked list of GC mappings - for HC.
3006 * The list is sorted ascending on address. */
3007 R3PTRTYPE(PPGMMAPPING) pMappingsR3;
3008#endif
3009 /** Pointer to the list of ROM ranges - for R3.
3010 * This is sorted by physical address and contains no overlapping ranges. */
3011 R3PTRTYPE(PPGMROMRANGE) pRomRangesR3;
3012 /** Pointer to the list of MMIO2 ranges - for R3.
3013 * Registration order. */
3014 R3PTRTYPE(PPGMREGMMIO2RANGE) pRegMmioRangesR3;
3015 /** MMIO2 lookup array for ring-3. Indexed by idMmio2 minus 1. */
3016 R3PTRTYPE(PPGMREGMMIO2RANGE) apMmio2RangesR3[PGM_MMIO2_MAX_RANGES];
3017
3018 /** RAM range TLB for R0. */
3019 R0PTRTYPE(PPGMRAMRANGE) apRamRangesTlbR0[PGM_RAMRANGE_TLB_ENTRIES];
3020 /** R0 pointer corresponding to PGM::pRamRangesXR3. */
3021 R0PTRTYPE(PPGMRAMRANGE) pRamRangesXR0;
3022 /** Root of the RAM range search tree for ring-0. */
3023 R0PTRTYPE(PPGMRAMRANGE) pRamRangeTreeR0;
3024 /** PGM offset based trees - R0 Ptr. */
3025 R0PTRTYPE(PPGMTREES) pTreesR0;
3026 /** Caching the last physical handler we looked up in R0. */
3027 R0PTRTYPE(PPGMPHYSHANDLER) pLastPhysHandlerR0;
3028 /** Shadow Page Pool - R0 Ptr. */
3029 R0PTRTYPE(PPGMPOOL) pPoolR0;
3030#ifndef PGM_WITHOUT_MAPPINGS
3031 /** Linked list of GC mappings - for R0.
3032 * The list is sorted ascending on address. */
3033 R0PTRTYPE(PPGMMAPPING) pMappingsR0;
3034 RTR0PTR R0PtrAlignment0;
3035#endif
3036 /** R0 pointer corresponding to PGM::pRomRangesR3. */
3037 R0PTRTYPE(PPGMROMRANGE) pRomRangesR0;
3038 /** MMIO2 lookup array for ring-0. Indexed by idMmio2 minus 1. */
3039 R0PTRTYPE(PPGMREGMMIO2RANGE) apMmio2RangesR0[PGM_MMIO2_MAX_RANGES];
3040
3041#ifndef PGM_WITHOUT_MAPPINGS
3042 /** Pointer to the 5 page CR3 content mapping.
3043 * The first page is always the CR3 (in some form) while the 4 other pages
3044 * are used for the PDs in PAE mode. */
3045 RTGCPTR GCPtrCR3Mapping;
3046
3047 /** @name Intermediate Context
3048 * @{ */
3049 /** Pointer to the intermediate page directory - Normal. */
3050 R3PTRTYPE(PX86PD) pInterPD;
3051 /** Pointer to the intermediate page tables - Normal.
3052 * There are two page tables, one for the identity mapping and one for
3053 * the host context mapping (of the core code). */
3054 R3PTRTYPE(PX86PT) apInterPTs[2];
3055 /** Pointer to the intermediate page tables - PAE. */
3056 R3PTRTYPE(PX86PTPAE) apInterPaePTs[2];
3057 /** Pointer to the intermediate page directory - PAE. */
3058 R3PTRTYPE(PX86PDPAE) apInterPaePDs[4];
3059 /** Pointer to the intermediate page directory - PAE. */
3060 R3PTRTYPE(PX86PDPT) pInterPaePDPT;
3061 /** Pointer to the intermediate page-map level 4 - AMD64. */
3062 R3PTRTYPE(PX86PML4) pInterPaePML4;
3063 /** Pointer to the intermediate page directory - AMD64. */
3064 R3PTRTYPE(PX86PDPT) pInterPaePDPT64;
3065 /** The Physical Address (HC) of the intermediate Page Directory - Normal. */
3066 RTHCPHYS HCPhysInterPD;
3067 /** The Physical Address (HC) of the intermediate Page Directory Pointer Table - PAE. */
3068 RTHCPHYS HCPhysInterPaePDPT;
3069 /** The Physical Address (HC) of the intermediate Page Map Level 4 table - AMD64. */
3070 RTHCPHYS HCPhysInterPaePML4;
3071 /** @} */
3072#endif
3073
3074#ifndef PGM_WITHOUT_MAPPINGS
3075 /** Base address of the dynamic page mapping area.
3076 * The array is MM_HYPER_DYNAMIC_SIZE bytes big.
3077 *
3078 * @todo The plan of keeping PGMRCDYNMAP private to PGMRZDynMap.cpp didn't
3079 * work out. Some cleaning up of the initialization that would
3080 * remove this memory is yet to be done...
3081 */
3082 RCPTRTYPE(uint8_t *) pbDynPageMapBaseGC;
3083 /** The address of the raw-mode context mapping cache. */
3084 RCPTRTYPE(PPGMRCDYNMAP) pRCDynMap;
3085 /** The address of the ring-0 mapping cache if we're making use of it. */
3086 RTR0PTR pvR0DynMapUsed;
3087#endif
3088
3089 /** Hack: Number of deprecated page mapping locks taken by the current lock
3090 * owner via pgmPhysGCPhys2CCPtrInternalDepr. */
3091 uint32_t cDeprecatedPageLocks;
3092 /** Alignment padding. */
3093 uint32_t au32Alignment2[1+2];
3094
3095
3096 /** PGM critical section.
3097 * This protects the physical, ram ranges, and the page flag updating (some of
3098 * it anyway).
3099 */
3100 PDMCRITSECT CritSectX;
3101
3102 /**
3103 * Data associated with managing the ring-3 mappings of the allocation chunks.
3104 */
3105 struct
3106 {
3107 /** The chunk mapping TLB. */
3108 PGMCHUNKR3MAPTLB Tlb;
3109 /** The chunk tree, ordered by chunk id. */
3110 R3PTRTYPE(PAVLU32NODECORE) pTree;
3111#if HC_ARCH_BITS == 32
3112 uint32_t u32Alignment0;
3113#endif
3114 /** The number of mapped chunks. */
3115 uint32_t c;
3116 /** @cfgm{/PGM/MaxRing3Chunks, uint32_t, host dependent}
3117 * The maximum number of mapped chunks. On 64-bit this is unlimited by default,
3118 * on 32-bit it defaults to 1 or 3 GB depending on the host. */
3119 uint32_t cMax;
3120 /** The current time. This is incremented whenever a chunk is inserted. */
3121 uint32_t iNow;
3122 /** Alignment padding. */
3123 uint32_t au32Alignment1[3];
3124 } ChunkR3Map;
3125
3126 /** The page mapping TLB for ring-3. */
3127 PGMPAGER3MAPTLB PhysTlbR3;
3128 /** The page mapping TLB for ring-0. */
3129 PGMPAGER0MAPTLB PhysTlbR0;
3130
3131 /** @name The zero page.
3132 * @{ */
3133 /** The host physical address of the zero page. */
3134 RTHCPHYS HCPhysZeroPg;
3135 /** The ring-3 mapping of the zero page. */
3136 RTR3PTR pvZeroPgR3;
3137 /** The ring-0 mapping of the zero page. */
3138 RTR0PTR pvZeroPgR0;
3139 /** The GC mapping of the zero page. */
3140 RTRCPTR pvZeroPgRC;
3141 RTRCPTR RCPtrAlignment3;
3142 /** @}*/
3143
3144 /** @name The Invalid MMIO page.
3145 * This page is filled with 0xfeedface.
3146 * @{ */
3147 /** The host physical address of the invalid MMIO page. */
3148 RTHCPHYS HCPhysMmioPg;
3149 /** The host pysical address of the invalid MMIO page plus all invalid
3150 * physical address bits set. This is used to trigger X86_TRAP_PF_RSVD.
3151 * @remarks Check fLessThan52PhysicalAddressBits before use. */
3152 RTHCPHYS HCPhysInvMmioPg;
3153 /** The ring-3 mapping of the invalid MMIO page. */
3154 RTR3PTR pvMmioPgR3;
3155#if HC_ARCH_BITS == 32
3156 RTR3PTR R3PtrAlignment4;
3157#endif
3158 /** @} */
3159
3160
3161 /** The number of handy pages. */
3162 uint32_t cHandyPages;
3163
3164 /** The number of large handy pages. */
3165 uint32_t cLargeHandyPages;
3166
3167 /**
3168 * Array of handy pages.
3169 *
3170 * This array is used in a two way communication between pgmPhysAllocPage
3171 * and GMMR0AllocateHandyPages, with PGMR3PhysAllocateHandyPages serving as
3172 * an intermediary.
3173 *
3174 * The size of this array is important, see pgmPhysEnsureHandyPage for details.
3175 * (The current size of 32 pages, means 128 KB of handy memory.)
3176 */
3177 GMMPAGEDESC aHandyPages[PGM_HANDY_PAGES];
3178
3179 /**
3180 * Array of large handy pages. (currently size 1)
3181 *
3182 * This array is used in a two way communication between pgmPhysAllocLargePage
3183 * and GMMR0AllocateLargePage, with PGMR3PhysAllocateLargePage serving as
3184 * an intermediary.
3185 */
3186 GMMPAGEDESC aLargeHandyPage[1];
3187
3188 /**
3189 * Live save data.
3190 */
3191 struct
3192 {
3193 /** Per type statistics. */
3194 struct
3195 {
3196 /** The number of ready pages. */
3197 uint32_t cReadyPages;
3198 /** The number of dirty pages. */
3199 uint32_t cDirtyPages;
3200 /** The number of ready zero pages. */
3201 uint32_t cZeroPages;
3202 /** The number of write monitored pages. */
3203 uint32_t cMonitoredPages;
3204 } Rom,
3205 Mmio2,
3206 Ram;
3207 /** The number of ignored pages in the RAM ranges (i.e. MMIO, MMIO2 and ROM). */
3208 uint32_t cIgnoredPages;
3209 /** Indicates that a live save operation is active. */
3210 bool fActive;
3211 /** Padding. */
3212 bool afReserved[2];
3213 /** The next history index. */
3214 uint8_t iDirtyPagesHistory;
3215 /** History of the total amount of dirty pages. */
3216 uint32_t acDirtyPagesHistory[64];
3217 /** Short term dirty page average. */
3218 uint32_t cDirtyPagesShort;
3219 /** Long term dirty page average. */
3220 uint32_t cDirtyPagesLong;
3221 /** The number of saved pages. This is used to get some kind of estimate of the
3222 * link speed so we can decide when we're done. It is reset after the first
3223 * 7 passes so the speed estimate doesn't get inflated by the initial set of
3224 * zero pages. */
3225 uint64_t cSavedPages;
3226 /** The nanosecond timestamp when cSavedPages was 0. */
3227 uint64_t uSaveStartNS;
3228 /** Pages per second (for statistics). */
3229 uint32_t cPagesPerSecond;
3230 uint32_t cAlignment;
3231 } LiveSave;
3232
3233 /** @name Error injection.
3234 * @{ */
3235 /** Inject handy page allocation errors pretending we're completely out of
3236 * memory. */
3237 bool volatile fErrInjHandyPages;
3238 /** Padding. */
3239 bool afReserved[3];
3240 /** @} */
3241
3242 /** @name Release Statistics
3243 * @{ */
3244 uint32_t cAllPages; /**< The total number of pages. (Should be Private + Shared + Zero + Pure MMIO.) */
3245 uint32_t cPrivatePages; /**< The number of private pages. */
3246 uint32_t cSharedPages; /**< The number of shared pages. */
3247 uint32_t cReusedSharedPages; /**< The number of reused shared pages. */
3248 uint32_t cZeroPages; /**< The number of zero backed pages. */
3249 uint32_t cPureMmioPages; /**< The number of pure MMIO pages. */
3250 uint32_t cMonitoredPages; /**< The number of write monitored pages. */
3251 uint32_t cWrittenToPages; /**< The number of previously write monitored pages. */
3252 uint32_t cWriteLockedPages; /**< The number of write locked pages. */
3253 uint32_t cReadLockedPages; /**< The number of read locked pages. */
3254 uint32_t cBalloonedPages; /**< The number of ballooned pages. */
3255 uint32_t cMappedChunks; /**< Number of times we mapped a chunk. */
3256 uint32_t cUnmappedChunks; /**< Number of times we unmapped a chunk. */
3257 uint32_t cLargePages; /**< The number of large pages. */
3258 uint32_t cLargePagesDisabled; /**< The number of disabled large pages. */
3259/* uint32_t aAlignment4[1]; */
3260
3261 /** The number of times we were forced to change the hypervisor region location. */
3262 STAMCOUNTER cRelocations;
3263
3264 STAMCOUNTER StatLargePageReused; /**< The number of large pages we've reused.*/
3265 STAMCOUNTER StatLargePageRefused; /**< The number of times we couldn't use a large page.*/
3266 STAMCOUNTER StatLargePageRecheck; /**< The number of times we rechecked a disabled large page.*/
3267
3268 STAMPROFILE StatShModCheck; /**< Profiles shared module checks. */
3269 /** @} */
3270
3271#ifdef VBOX_WITH_STATISTICS
3272 /** These are optional statistics that used to be on the hyper heap. */
3273 PGMSTATS Stats;
3274#endif
3275} PGM;
3276#ifndef IN_TSTVMSTRUCTGC /* HACK */
3277# ifndef PGM_WITHOUT_MAPPINGS
3278AssertCompileMemberAlignment(PGM, paDynPageMap32BitPTEsGC, 8);
3279# endif
3280AssertCompileMemberAlignment(PGM, GCPtrMappingFixed, sizeof(RTGCPTR));
3281# ifndef PGM_WITHOUT_MAPPINGS
3282AssertCompileMemberAlignment(PGM, HCPhysInterPD, 8);
3283# endif
3284AssertCompileMemberAlignment(PGM, CritSectX, 8);
3285AssertCompileMemberAlignment(PGM, ChunkR3Map, 16);
3286AssertCompileMemberAlignment(PGM, PhysTlbR3, 32); /** @todo 32 byte alignment! */
3287AssertCompileMemberAlignment(PGM, PhysTlbR0, 32);
3288AssertCompileMemberAlignment(PGM, HCPhysZeroPg, 8);
3289AssertCompileMemberAlignment(PGM, aHandyPages, 8);
3290AssertCompileMemberAlignment(PGM, cRelocations, 8);
3291#endif /* !IN_TSTVMSTRUCTGC */
3292/** Pointer to the PGM instance data. */
3293typedef PGM *PPGM;
3294
3295
3296#ifdef VBOX_WITH_STATISTICS
3297/**
3298 * Per CPU statistis for PGM (used to be on the heap).
3299 */
3300typedef struct PGMCPUSTATS
3301{
3302 /* Common */
3303 STAMCOUNTER StatSyncPtPD[X86_PG_ENTRIES]; /**< SyncPT - PD distribution. */
3304 STAMCOUNTER StatSyncPagePD[X86_PG_ENTRIES]; /**< SyncPage - PD distribution. */
3305
3306 /* R0 only: */
3307 STAMPROFILE StatR0NpMiscfg; /**< R0: PGMR0Trap0eHandlerNPMisconfig() profiling. */
3308 STAMCOUNTER StatR0NpMiscfgSyncPage; /**< R0: SyncPage calls from PGMR0Trap0eHandlerNPMisconfig(). */
3309
3310 /* RZ only: */
3311 STAMPROFILE StatRZTrap0e; /**< RC/R0: PGMTrap0eHandler() profiling. */
3312 STAMPROFILE StatRZTrap0eTime2Ballooned; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is read access to a ballooned page. */
3313 STAMPROFILE StatRZTrap0eTime2CSAM; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is CSAM. */
3314 STAMPROFILE StatRZTrap0eTime2DirtyAndAccessed; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation. */
3315 STAMPROFILE StatRZTrap0eTime2GuestTrap; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a guest trap. */
3316 STAMPROFILE StatRZTrap0eTime2HndPhys; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a physical handler. */
3317 STAMPROFILE StatRZTrap0eTime2HndUnhandled; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page. */
3318 STAMPROFILE StatRZTrap0eTime2InvalidPhys; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is access to an invalid physical guest address. */
3319 STAMPROFILE StatRZTrap0eTime2MakeWritable; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a page that needed to be made writable. */
3320 STAMPROFILE StatRZTrap0eTime2Mapping; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is the guest mappings. */
3321 STAMPROFILE StatRZTrap0eTime2Misc; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is not known. */
3322 STAMPROFILE StatRZTrap0eTime2OutOfSync; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync page. */
3323 STAMPROFILE StatRZTrap0eTime2OutOfSyncHndPhys; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page. */
3324 STAMPROFILE StatRZTrap0eTime2OutOfSyncHndObs; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an obsolete handler page. */
3325 STAMPROFILE StatRZTrap0eTime2SyncPT; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT. */
3326 STAMPROFILE StatRZTrap0eTime2WPEmulation; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is CR0.WP emulation. */
3327 STAMPROFILE StatRZTrap0eTime2Wp0RoUsHack; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is CR0.WP and netware hack to be enabled. */
3328 STAMPROFILE StatRZTrap0eTime2Wp0RoUsUnhack; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is CR0.WP and netware hack to be disabled. */
3329 STAMCOUNTER StatRZTrap0eConflicts; /**< RC/R0: The number of times \#PF was caused by an undetected conflict. */
3330 STAMCOUNTER StatRZTrap0eHandlersMapping; /**< RC/R0: Number of traps due to access handlers in mappings. */
3331 STAMCOUNTER StatRZTrap0eHandlersOutOfSync; /**< RC/R0: Number of out-of-sync handled pages. */
3332 STAMCOUNTER StatRZTrap0eHandlersPhysAll; /**< RC/R0: Number of traps due to physical all-access handlers. */
3333 STAMCOUNTER StatRZTrap0eHandlersPhysAllOpt; /**< RC/R0: Number of the physical all-access handler traps using the optimization. */
3334 STAMCOUNTER StatRZTrap0eHandlersPhysWrite; /**< RC/R0: Number of traps due to write-physical access handlers. */
3335 STAMCOUNTER StatRZTrap0eHandlersUnhandled; /**< RC/R0: Number of traps due to access outside range of monitored page(s). */
3336 STAMCOUNTER StatRZTrap0eHandlersInvalid; /**< RC/R0: Number of traps due to access to invalid physical memory. */
3337 STAMCOUNTER StatRZTrap0eUSNotPresentRead; /**< RC/R0: \#PF err kind */
3338 STAMCOUNTER StatRZTrap0eUSNotPresentWrite; /**< RC/R0: \#PF err kind */
3339 STAMCOUNTER StatRZTrap0eUSWrite; /**< RC/R0: \#PF err kind */
3340 STAMCOUNTER StatRZTrap0eUSReserved; /**< RC/R0: \#PF err kind */
3341 STAMCOUNTER StatRZTrap0eUSNXE; /**< RC/R0: \#PF err kind */
3342 STAMCOUNTER StatRZTrap0eUSRead; /**< RC/R0: \#PF err kind */
3343 STAMCOUNTER StatRZTrap0eSVNotPresentRead; /**< RC/R0: \#PF err kind */
3344 STAMCOUNTER StatRZTrap0eSVNotPresentWrite; /**< RC/R0: \#PF err kind */
3345 STAMCOUNTER StatRZTrap0eSVWrite; /**< RC/R0: \#PF err kind */
3346 STAMCOUNTER StatRZTrap0eSVReserved; /**< RC/R0: \#PF err kind */
3347 STAMCOUNTER StatRZTrap0eSNXE; /**< RC/R0: \#PF err kind */
3348 STAMCOUNTER StatRZTrap0eGuestPF; /**< RC/R0: Real guest \#PFs. */
3349 STAMCOUNTER StatRZTrap0eGuestPFMapping; /**< RC/R0: Real guest \#PF to HMA or other mapping. */
3350 STAMCOUNTER StatRZTrap0eWPEmulInRZ; /**< RC/R0: WP=0 virtualization trap, handled. */
3351 STAMCOUNTER StatRZTrap0eWPEmulToR3; /**< RC/R0: WP=0 virtualization trap, chickened out. */
3352 STAMCOUNTER StatRZTrap0ePD[X86_PG_ENTRIES]; /**< RC/R0: PD distribution of the \#PFs. */
3353 STAMCOUNTER StatRZGuestCR3WriteHandled; /**< RC/R0: The number of times WriteHandlerCR3() was successfully called. */
3354 STAMCOUNTER StatRZGuestCR3WriteUnhandled; /**< RC/R0: The number of times WriteHandlerCR3() was called and we had to fall back to the recompiler. */
3355 STAMCOUNTER StatRZGuestCR3WriteConflict; /**< RC/R0: The number of times WriteHandlerCR3() was called and a conflict was detected. */
3356 STAMCOUNTER StatRZGuestROMWriteHandled; /**< RC/R0: The number of times pgmPhysRomWriteHandler() was successfully called. */
3357 STAMCOUNTER StatRZGuestROMWriteUnhandled; /**< RC/R0: The number of times pgmPhysRomWriteHandler() was called and we had to fall back to the recompiler */
3358 STAMCOUNTER StatRZDynMapMigrateInvlPg; /**< RZ: invlpg in PGMR0DynMapMigrateAutoSet. */
3359 STAMPROFILE StatRZDynMapGCPageInl; /**< RZ: Calls to pgmRZDynMapGCPageInlined. */
3360 STAMCOUNTER StatRZDynMapGCPageInlHits; /**< RZ: Hash table lookup hits. */
3361 STAMCOUNTER StatRZDynMapGCPageInlMisses; /**< RZ: Misses that falls back to the code common. */
3362 STAMCOUNTER StatRZDynMapGCPageInlRamHits; /**< RZ: 1st ram range hits. */
3363 STAMCOUNTER StatRZDynMapGCPageInlRamMisses; /**< RZ: 1st ram range misses, takes slow path. */
3364 STAMPROFILE StatRZDynMapHCPageInl; /**< RZ: Calls to pgmRZDynMapHCPageInlined. */
3365 STAMCOUNTER StatRZDynMapHCPageInlHits; /**< RZ: Hash table lookup hits. */
3366 STAMCOUNTER StatRZDynMapHCPageInlMisses; /**< RZ: Misses that falls back to the code common. */
3367 STAMPROFILE StatRZDynMapHCPage; /**< RZ: Calls to pgmRZDynMapHCPageCommon. */
3368 STAMCOUNTER StatRZDynMapSetOptimize; /**< RZ: Calls to pgmRZDynMapOptimizeAutoSet. */
3369 STAMCOUNTER StatRZDynMapSetSearchFlushes; /**< RZ: Set search restoring to subset flushes. */
3370 STAMCOUNTER StatRZDynMapSetSearchHits; /**< RZ: Set search hits. */
3371 STAMCOUNTER StatRZDynMapSetSearchMisses; /**< RZ: Set search misses. */
3372 STAMCOUNTER StatRZDynMapPage; /**< RZ: Calls to pgmR0DynMapPage. */
3373 STAMCOUNTER StatRZDynMapPageHits0; /**< RZ: Hits at iPage+0. */
3374 STAMCOUNTER StatRZDynMapPageHits1; /**< RZ: Hits at iPage+1. */
3375 STAMCOUNTER StatRZDynMapPageHits2; /**< RZ: Hits at iPage+2. */
3376 STAMCOUNTER StatRZDynMapPageInvlPg; /**< RZ: invlpg. */
3377 STAMCOUNTER StatRZDynMapPageSlow; /**< RZ: Calls to pgmR0DynMapPageSlow. */
3378 STAMCOUNTER StatRZDynMapPageSlowLoopHits; /**< RZ: Hits in the pgmR0DynMapPageSlow search loop. */
3379 STAMCOUNTER StatRZDynMapPageSlowLoopMisses; /**< RZ: Misses in the pgmR0DynMapPageSlow search loop. */
3380 //STAMCOUNTER StatRZDynMapPageSlowLostHits; /**< RZ: Lost hits. */
3381 STAMCOUNTER StatRZDynMapSubsets; /**< RZ: Times PGMDynMapPushAutoSubset was called. */
3382 STAMCOUNTER StatRZDynMapPopFlushes; /**< RZ: Times PGMDynMapPopAutoSubset flushes the subset. */
3383 STAMCOUNTER aStatRZDynMapSetFilledPct[11]; /**< RZ: Set fill distribution, percent. */
3384
3385 /* HC - R3 and (maybe) R0: */
3386
3387 /* RZ & R3: */
3388 STAMPROFILE StatRZSyncCR3; /**< RC/R0: PGMSyncCR3() profiling. */
3389 STAMPROFILE StatRZSyncCR3Handlers; /**< RC/R0: Profiling of the PGMSyncCR3() update handler section. */
3390 STAMCOUNTER StatRZSyncCR3Global; /**< RC/R0: The number of global CR3 syncs. */
3391 STAMCOUNTER StatRZSyncCR3NotGlobal; /**< RC/R0: The number of non-global CR3 syncs. */
3392 STAMCOUNTER StatRZSyncCR3DstCacheHit; /**< RC/R0: The number of times we got some kind of cache hit on a page table. */
3393 STAMCOUNTER StatRZSyncCR3DstFreed; /**< RC/R0: The number of times we've had to free a shadow entry. */
3394 STAMCOUNTER StatRZSyncCR3DstFreedSrcNP; /**< RC/R0: The number of times we've had to free a shadow entry for which the source entry was not present. */
3395 STAMCOUNTER StatRZSyncCR3DstNotPresent; /**< RC/R0: The number of times we've encountered a not present shadow entry for a present guest entry. */
3396 STAMCOUNTER StatRZSyncCR3DstSkippedGlobalPD; /**< RC/R0: The number of times a global page directory wasn't flushed. */
3397 STAMCOUNTER StatRZSyncCR3DstSkippedGlobalPT; /**< RC/R0: The number of times a page table with only global entries wasn't flushed. */
3398 STAMPROFILE StatRZSyncPT; /**< RC/R0: PGMSyncPT() profiling. */
3399 STAMCOUNTER StatRZSyncPTFailed; /**< RC/R0: The number of times PGMSyncPT() failed. */
3400 STAMCOUNTER StatRZSyncPT4K; /**< RC/R0: Number of 4KB syncs. */
3401 STAMCOUNTER StatRZSyncPT4M; /**< RC/R0: Number of 4MB syncs. */
3402 STAMCOUNTER StatRZSyncPagePDNAs; /**< RC/R0: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
3403 STAMCOUNTER StatRZSyncPagePDOutOfSync; /**< RC/R0: The number of time we've encountered an out-of-sync PD in SyncPage. */
3404 STAMCOUNTER StatRZAccessedPage; /**< RC/R0: The number of pages marked not present for accessed bit emulation. */
3405 STAMPROFILE StatRZDirtyBitTracking; /**< RC/R0: Profiling the dirty bit tracking in CheckPageFault(). */
3406 STAMCOUNTER StatRZDirtyPage; /**< RC/R0: The number of pages marked read-only for dirty bit tracking. */
3407 STAMCOUNTER StatRZDirtyPageBig; /**< RC/R0: The number of pages marked read-only for dirty bit tracking. */
3408 STAMCOUNTER StatRZDirtyPageSkipped; /**< RC/R0: The number of pages already dirty or readonly. */
3409 STAMCOUNTER StatRZDirtyPageTrap; /**< RC/R0: The number of traps generated for dirty bit tracking. */
3410 STAMCOUNTER StatRZDirtyPageStale; /**< RC/R0: The number of traps generated for dirty bit tracking. (stale tlb entries) */
3411 STAMCOUNTER StatRZDirtyTrackRealPF; /**< RC/R0: The number of real pages faults during dirty bit tracking. */
3412 STAMCOUNTER StatRZDirtiedPage; /**< RC/R0: The number of pages marked dirty because of write accesses. */
3413 STAMCOUNTER StatRZPageAlreadyDirty; /**< RC/R0: The number of pages already marked dirty because of write accesses. */
3414 STAMPROFILE StatRZInvalidatePage; /**< RC/R0: PGMInvalidatePage() profiling. */
3415 STAMCOUNTER StatRZInvalidatePage4KBPages; /**< RC/R0: The number of times PGMInvalidatePage() was called for a 4KB page. */
3416 STAMCOUNTER StatRZInvalidatePage4MBPages; /**< RC/R0: The number of times PGMInvalidatePage() was called for a 4MB page. */
3417 STAMCOUNTER StatRZInvalidatePage4MBPagesSkip; /**< RC/R0: The number of times PGMInvalidatePage() skipped a 4MB page. */
3418 STAMCOUNTER StatRZInvalidatePagePDMappings; /**< RC/R0: The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict). */
3419 STAMCOUNTER StatRZInvalidatePagePDNAs; /**< RC/R0: The number of times PGMInvalidatePage() was called for a not accessed page directory. */
3420 STAMCOUNTER StatRZInvalidatePagePDNPs; /**< RC/R0: The number of times PGMInvalidatePage() was called for a not present page directory. */
3421 STAMCOUNTER StatRZInvalidatePagePDOutOfSync; /**< RC/R0: The number of times PGMInvalidatePage() was called for an out of sync page directory. */
3422 STAMCOUNTER StatRZInvalidatePageSizeChanges ; /**< RC/R0: The number of times PGMInvalidatePage() was called on a page size change (4KB <-> 2/4MB). */
3423 STAMCOUNTER StatRZInvalidatePageSkipped; /**< RC/R0: The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
3424 STAMCOUNTER StatRZPageOutOfSyncUser; /**< RC/R0: The number of times user page is out of sync was detected in \#PF or VerifyAccessSyncPage. */
3425 STAMCOUNTER StatRZPageOutOfSyncSupervisor; /**< RC/R0: The number of times supervisor page is out of sync was detected in in \#PF or VerifyAccessSyncPage. */
3426 STAMCOUNTER StatRZPageOutOfSyncUserWrite; /**< RC/R0: The number of times user page is out of sync was detected in \#PF. */
3427 STAMCOUNTER StatRZPageOutOfSyncSupervisorWrite; /**< RC/R0: The number of times supervisor page is out of sync was detected in in \#PF. */
3428 STAMCOUNTER StatRZPageOutOfSyncBallloon; /**< RC/R0: The number of times a ballooned page was accessed (read). */
3429 STAMPROFILE StatRZPrefetch; /**< RC/R0: PGMPrefetchPage. */
3430 STAMPROFILE StatRZFlushTLB; /**< RC/R0: Profiling of the PGMFlushTLB() body. */
3431 STAMCOUNTER StatRZFlushTLBNewCR3; /**< RC/R0: The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) */
3432 STAMCOUNTER StatRZFlushTLBNewCR3Global; /**< RC/R0: The number of times PGMFlushTLB was called with a new CR3, global. (switch) */
3433 STAMCOUNTER StatRZFlushTLBSameCR3; /**< RC/R0: The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) */
3434 STAMCOUNTER StatRZFlushTLBSameCR3Global; /**< RC/R0: The number of times PGMFlushTLB was called with the same CR3, global. (flush) */
3435 STAMPROFILE StatRZGstModifyPage; /**< RC/R0: Profiling of the PGMGstModifyPage() body */
3436
3437 STAMPROFILE StatR3SyncCR3; /**< R3: PGMSyncCR3() profiling. */
3438 STAMPROFILE StatR3SyncCR3Handlers; /**< R3: Profiling of the PGMSyncCR3() update handler section. */
3439 STAMCOUNTER StatR3SyncCR3Global; /**< R3: The number of global CR3 syncs. */
3440 STAMCOUNTER StatR3SyncCR3NotGlobal; /**< R3: The number of non-global CR3 syncs. */
3441 STAMCOUNTER StatR3SyncCR3DstFreed; /**< R3: The number of times we've had to free a shadow entry. */
3442 STAMCOUNTER StatR3SyncCR3DstFreedSrcNP; /**< R3: The number of times we've had to free a shadow entry for which the source entry was not present. */
3443 STAMCOUNTER StatR3SyncCR3DstNotPresent; /**< R3: The number of times we've encountered a not present shadow entry for a present guest entry. */
3444 STAMCOUNTER StatR3SyncCR3DstSkippedGlobalPD; /**< R3: The number of times a global page directory wasn't flushed. */
3445 STAMCOUNTER StatR3SyncCR3DstSkippedGlobalPT; /**< R3: The number of times a page table with only global entries wasn't flushed. */
3446 STAMCOUNTER StatR3SyncCR3DstCacheHit; /**< R3: The number of times we got some kind of cache hit on a page table. */
3447 STAMPROFILE StatR3SyncPT; /**< R3: PGMSyncPT() profiling. */
3448 STAMCOUNTER StatR3SyncPTFailed; /**< R3: The number of times PGMSyncPT() failed. */
3449 STAMCOUNTER StatR3SyncPT4K; /**< R3: Number of 4KB syncs. */
3450 STAMCOUNTER StatR3SyncPT4M; /**< R3: Number of 4MB syncs. */
3451 STAMCOUNTER StatR3SyncPagePDNAs; /**< R3: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
3452 STAMCOUNTER StatR3SyncPagePDOutOfSync; /**< R3: The number of time we've encountered an out-of-sync PD in SyncPage. */
3453 STAMCOUNTER StatR3AccessedPage; /**< R3: The number of pages marked not present for accessed bit emulation. */
3454 STAMPROFILE StatR3DirtyBitTracking; /**< R3: Profiling the dirty bit tracking in CheckPageFault(). */
3455 STAMCOUNTER StatR3DirtyPage; /**< R3: The number of pages marked read-only for dirty bit tracking. */
3456 STAMCOUNTER StatR3DirtyPageBig; /**< R3: The number of pages marked read-only for dirty bit tracking. */
3457 STAMCOUNTER StatR3DirtyPageSkipped; /**< R3: The number of pages already dirty or readonly. */
3458 STAMCOUNTER StatR3DirtyPageTrap; /**< R3: The number of traps generated for dirty bit tracking. */
3459 STAMCOUNTER StatR3DirtyTrackRealPF; /**< R3: The number of real pages faults during dirty bit tracking. */
3460 STAMCOUNTER StatR3DirtiedPage; /**< R3: The number of pages marked dirty because of write accesses. */
3461 STAMCOUNTER StatR3PageAlreadyDirty; /**< R3: The number of pages already marked dirty because of write accesses. */
3462 STAMPROFILE StatR3InvalidatePage; /**< R3: PGMInvalidatePage() profiling. */
3463 STAMCOUNTER StatR3InvalidatePage4KBPages; /**< R3: The number of times PGMInvalidatePage() was called for a 4KB page. */
3464 STAMCOUNTER StatR3InvalidatePage4MBPages; /**< R3: The number of times PGMInvalidatePage() was called for a 4MB page. */
3465 STAMCOUNTER StatR3InvalidatePage4MBPagesSkip; /**< R3: The number of times PGMInvalidatePage() skipped a 4MB page. */
3466 STAMCOUNTER StatR3InvalidatePagePDNAs; /**< R3: The number of times PGMInvalidatePage() was called for a not accessed page directory. */
3467 STAMCOUNTER StatR3InvalidatePagePDNPs; /**< R3: The number of times PGMInvalidatePage() was called for a not present page directory. */
3468 STAMCOUNTER StatR3InvalidatePagePDMappings; /**< R3: The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict). */
3469 STAMCOUNTER StatR3InvalidatePagePDOutOfSync; /**< R3: The number of times PGMInvalidatePage() was called for an out of sync page directory. */
3470 STAMCOUNTER StatR3InvalidatePageSizeChanges ; /**< R3: The number of times PGMInvalidatePage() was called on a page size change (4KB <-> 2/4MB). */
3471 STAMCOUNTER StatR3InvalidatePageSkipped; /**< R3: The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
3472 STAMCOUNTER StatR3PageOutOfSyncUser; /**< R3: The number of times user page is out of sync was detected in \#PF or VerifyAccessSyncPage. */
3473 STAMCOUNTER StatR3PageOutOfSyncSupervisor; /**< R3: The number of times supervisor page is out of sync was detected in in \#PF or VerifyAccessSyncPage. */
3474 STAMCOUNTER StatR3PageOutOfSyncUserWrite; /**< R3: The number of times user page is out of sync was detected in \#PF. */
3475 STAMCOUNTER StatR3PageOutOfSyncSupervisorWrite; /**< R3: The number of times supervisor page is out of sync was detected in in \#PF. */
3476 STAMCOUNTER StatR3PageOutOfSyncBallloon; /**< R3: The number of times a ballooned page was accessed (read). */
3477 STAMPROFILE StatR3Prefetch; /**< R3: PGMPrefetchPage. */
3478 STAMPROFILE StatR3FlushTLB; /**< R3: Profiling of the PGMFlushTLB() body. */
3479 STAMCOUNTER StatR3FlushTLBNewCR3; /**< R3: The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) */
3480 STAMCOUNTER StatR3FlushTLBNewCR3Global; /**< R3: The number of times PGMFlushTLB was called with a new CR3, global. (switch) */
3481 STAMCOUNTER StatR3FlushTLBSameCR3; /**< R3: The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) */
3482 STAMCOUNTER StatR3FlushTLBSameCR3Global; /**< R3: The number of times PGMFlushTLB was called with the same CR3, global. (flush) */
3483 STAMPROFILE StatR3GstModifyPage; /**< R3: Profiling of the PGMGstModifyPage() body */
3484} PGMCPUSTATS;
3485#endif /* VBOX_WITH_STATISTICS */
3486
3487
3488/**
3489 * PGMCPU Data (part of VMCPU).
3490 */
3491typedef struct PGMCPU
3492{
3493 /** A20 gate mask.
3494 * Our current approach to A20 emulation is to let REM do it and don't bother
3495 * anywhere else. The interesting Guests will be operating with it enabled anyway.
3496 * But whould need arrise, we'll subject physical addresses to this mask. */
3497 RTGCPHYS GCPhysA20Mask;
3498 /** A20 gate state - boolean! */
3499 bool fA20Enabled;
3500 /** Mirror of the EFER.NXE bit. Managed by PGMNotifyNxeChanged. */
3501 bool fNoExecuteEnabled;
3502 /** Unused bits. */
3503 bool afUnused[2];
3504
3505 /** What needs syncing (PGM_SYNC_*).
3506 * This is used to queue operations for PGMSyncCR3, PGMInvalidatePage,
3507 * PGMFlushTLB, and PGMR3Load. */
3508 uint32_t fSyncFlags;
3509
3510 /** The shadow paging mode. */
3511 PGMMODE enmShadowMode;
3512 /** The guest paging mode. */
3513 PGMMODE enmGuestMode;
3514 /** Guest mode data table index (PGM_TYPE_XXX). */
3515 uint8_t volatile idxGuestModeData;
3516 /** Shadow mode data table index (PGM_TYPE_XXX). */
3517 uint8_t volatile idxShadowModeData;
3518 /** Both mode data table index (complicated). */
3519 uint8_t volatile idxBothModeData;
3520 /** Alignment padding. */
3521 uint8_t abPadding[5];
3522
3523 /** The current physical address represented in the guest CR3 register. */
3524 RTGCPHYS GCPhysCR3;
3525
3526 /** @name 32-bit Guest Paging.
3527 * @{ */
3528 /** The guest's page directory, R3 pointer. */
3529 R3PTRTYPE(PX86PD) pGst32BitPdR3;
3530 /** The guest's page directory, R0 pointer. */
3531 R0PTRTYPE(PX86PD) pGst32BitPdR0;
3532 /** Mask containing the MBZ bits of a big page PDE. */
3533 uint32_t fGst32BitMbzBigPdeMask;
3534 /** Set if the page size extension (PSE) is enabled. */
3535 bool fGst32BitPageSizeExtension;
3536 /** Alignment padding. */
3537 bool afAlignment2[3];
3538 /** @} */
3539
3540 /** @name PAE Guest Paging.
3541 * @{ */
3542 /** The guest's page directory pointer table, R3 pointer. */
3543 R3PTRTYPE(PX86PDPT) pGstPaePdptR3;
3544 /** The guest's page directory pointer table, R0 pointer. */
3545 R0PTRTYPE(PX86PDPT) pGstPaePdptR0;
3546
3547 /** The guest's page directories, R3 pointers.
3548 * These are individual pointers and don't have to be adjacent.
3549 * These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
3550 R3PTRTYPE(PX86PDPAE) apGstPaePDsR3[4];
3551 /** The guest's page directories, R0 pointers.
3552 * Same restrictions as apGstPaePDsR3. */
3553 R0PTRTYPE(PX86PDPAE) apGstPaePDsR0[4];
3554 /** The physical addresses of the guest page directories (PAE) pointed to by apGstPagePDsHC/GC. */
3555 RTGCPHYS aGCPhysGstPaePDs[4];
3556 /** The physical addresses of the monitored guest page directories (PAE). */
3557 RTGCPHYS aGCPhysGstPaePDsMonitored[4];
3558 /** Mask containing the MBZ PTE bits. */
3559 uint64_t fGstPaeMbzPteMask;
3560 /** Mask containing the MBZ PDE bits. */
3561 uint64_t fGstPaeMbzPdeMask;
3562 /** Mask containing the MBZ big page PDE bits. */
3563 uint64_t fGstPaeMbzBigPdeMask;
3564 /** Mask containing the MBZ PDPE bits. */
3565 uint64_t fGstPaeMbzPdpeMask;
3566 /** @} */
3567
3568 /** @name AMD64 Guest Paging.
3569 * @{ */
3570 /** The guest's page directory pointer table, R3 pointer. */
3571 R3PTRTYPE(PX86PML4) pGstAmd64Pml4R3;
3572 /** The guest's page directory pointer table, R0 pointer. */
3573 R0PTRTYPE(PX86PML4) pGstAmd64Pml4R0;
3574 /** Mask containing the MBZ PTE bits. */
3575 uint64_t fGstAmd64MbzPteMask;
3576 /** Mask containing the MBZ PDE bits. */
3577 uint64_t fGstAmd64MbzPdeMask;
3578 /** Mask containing the MBZ big page PDE bits. */
3579 uint64_t fGstAmd64MbzBigPdeMask;
3580 /** Mask containing the MBZ PDPE bits. */
3581 uint64_t fGstAmd64MbzPdpeMask;
3582 /** Mask containing the MBZ big page PDPE bits. */
3583 uint64_t fGstAmd64MbzBigPdpeMask;
3584 /** Mask containing the MBZ PML4E bits. */
3585 uint64_t fGstAmd64MbzPml4eMask;
3586 /** Mask containing the PDPE bits that we shadow. */
3587 uint64_t fGstAmd64ShadowedPdpeMask;
3588 /** Mask containing the PML4E bits that we shadow. */
3589 uint64_t fGstAmd64ShadowedPml4eMask;
3590 /** @} */
3591
3592 /** @name PAE and AMD64 Guest Paging.
3593 * @{ */
3594 /** Mask containing the PTE bits that we shadow. */
3595 uint64_t fGst64ShadowedPteMask;
3596 /** Mask containing the PDE bits that we shadow. */
3597 uint64_t fGst64ShadowedPdeMask;
3598 /** Mask containing the big page PDE bits that we shadow in the PDE. */
3599 uint64_t fGst64ShadowedBigPdeMask;
3600 /** Mask containing the big page PDE bits that we shadow in the PTE. */
3601 uint64_t fGst64ShadowedBigPde4PteMask;
3602 /** @} */
3603
3604 /** Pointer to the page of the current active CR3 - R3 Ptr. */
3605 R3PTRTYPE(PPGMPOOLPAGE) pShwPageCR3R3;
3606 /** Pointer to the page of the current active CR3 - R0 Ptr. */
3607 R0PTRTYPE(PPGMPOOLPAGE) pShwPageCR3R0;
3608
3609 /** For saving stack space, the disassembler state is allocated here instead of
3610 * on the stack. */
3611 DISCPUSTATE DisState;
3612
3613 /** Counts the number of times the netware WP0+RO+US hack has been applied. */
3614 uint64_t cNetwareWp0Hacks;
3615
3616 /** Count the number of pgm pool access handler calls. */
3617 uint64_t cPoolAccessHandler;
3618
3619 /** @name Release Statistics
3620 * @{ */
3621 /** The number of times the guest has switched mode since last reset or statistics reset. */
3622 STAMCOUNTER cGuestModeChanges;
3623 /** The number of times the guest has switched mode since last reset or statistics reset. */
3624 STAMCOUNTER cA20Changes;
3625 /** @} */
3626
3627#ifdef VBOX_WITH_STATISTICS
3628 /** These are statistics that used to be on the hyper heap. */
3629 PGMCPUSTATS Stats;
3630#endif
3631} PGMCPU;
3632/** Pointer to the per-cpu PGM data. */
3633typedef PGMCPU *PPGMCPU;
3634
3635
3636/** @name PGM::fSyncFlags Flags
3637 * @note Was part of saved state a long time ago.
3638 * @{
3639 */
3640/* 0 used to be PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL */
3641/** Always sync CR3. */
3642#define PGM_SYNC_ALWAYS RT_BIT(1)
3643/** Check monitoring on next CR3 (re)load and invalidate page.
3644 * @todo This is obsolete now. Remove after 2.2.0 is branched off. */
3645#define PGM_SYNC_MONITOR_CR3 RT_BIT(2)
3646/** Check guest mapping in SyncCR3. */
3647#define PGM_SYNC_MAP_CR3 RT_BIT(3)
3648/** Clear the page pool (a light weight flush). */
3649#define PGM_SYNC_CLEAR_PGM_POOL_BIT 8
3650#define PGM_SYNC_CLEAR_PGM_POOL RT_BIT(PGM_SYNC_CLEAR_PGM_POOL_BIT)
3651/** @} */
3652
3653
3654/**
3655 * PGM GVMCPU instance data.
3656 */
3657typedef struct PGMR0PERVCPU
3658{
3659#ifdef VBOX_WITH_STATISTICS
3660 /** R0: Which statistic this \#PF should be attributed to. */
3661 R0PTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionR0;
3662#endif
3663 uint64_t u64Dummy;
3664} PGMR0PERVCPU;
3665
3666
3667/**
3668 * PGM GVM instance data.
3669 */
3670typedef struct PGMR0PERVM
3671{
3672 /** @name PGM Pool related stuff.
3673 * @{ */
3674 /** Critical section for serializing pool growth. */
3675 RTCRITSECT PoolGrowCritSect;
3676 /** The memory objects for the pool pages. */
3677 RTR0MEMOBJ ahPoolMemObjs[(PGMPOOL_IDX_LAST + PGMPOOL_CFG_MAX_GROW - 1) / PGMPOOL_CFG_MAX_GROW];
3678 /** The ring-3 mapping objects for the pool pages. */
3679 RTR0MEMOBJ ahPoolMapObjs[(PGMPOOL_IDX_LAST + PGMPOOL_CFG_MAX_GROW - 1) / PGMPOOL_CFG_MAX_GROW];
3680 /** @} */
3681} PGMR0PERVM;
3682
3683RT_C_DECLS_BEGIN
3684
3685#if defined(VBOX_STRICT)
3686int pgmLockDebug(PVMCC pVM, bool fVoid, RT_SRC_POS_DECL);
3687# define PGM_LOCK_VOID(a_pVM) pgmLockDebug((a_pVM), true, RT_SRC_POS)
3688# define PGM_LOCK(a_pVM) pgmLockDebug((a_pVM), false, RT_SRC_POS)
3689#else
3690int pgmLock(PVMCC pVM, bool fVoid);
3691# define PGM_LOCK_VOID(a_pVM) pgmLock((a_pVM), true)
3692# define PGM_LOCK(a_pVM) pgmLock((a_pVM), false)
3693#endif
3694void pgmUnlock(PVMCC pVM);
3695# define PGM_UNLOCK(a_pVM) pgmUnlock((a_pVM))
3696/**
3697 * Asserts that the caller owns the PDM lock.
3698 * This is the internal variant of PGMIsLockOwner.
3699 * @param a_pVM Pointer to the VM.
3700 */
3701#define PGM_LOCK_ASSERT_OWNER(a_pVM) Assert(PDMCritSectIsOwner((a_pVM), &(a_pVM)->pgm.s.CritSectX))
3702/**
3703 * Asserts that the caller owns the PDM lock.
3704 * This is the internal variant of PGMIsLockOwner.
3705 * @param a_pVM Pointer to the VM.
3706 * @param a_pVCpu The current CPU handle.
3707 */
3708#define PGM_LOCK_ASSERT_OWNER_EX(a_pVM, a_pVCpu) Assert(PDMCritSectIsOwnerEx((a_pVCpu), &(a_pVM)->pgm.s.CritSectX))
3709
3710#ifndef PGM_WITHOUT_MAPPINGS
3711int pgmR3MappingsFixInternal(PVM pVM, RTGCPTR GCPtrBase, uint32_t cb);
3712int pgmR3SyncPTResolveConflict(PVM pVM, PPGMMAPPING pMapping, PX86PD pPDSrc, RTGCPTR GCPtrOldMapping);
3713int pgmR3SyncPTResolveConflictPAE(PVM pVM, PPGMMAPPING pMapping, RTGCPTR GCPtrOldMapping);
3714int pgmMapResolveConflicts(PVM pVM);
3715PPGMMAPPING pgmGetMapping(PVM pVM, RTGCPTR GCPtr);
3716DECLCALLBACK(void) pgmR3MapInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
3717#endif /* !PGM_WITHOUT_MAPPINGS */
3718
3719int pgmHandlerPhysicalExCreate(PVMCC pVM, PGMPHYSHANDLERTYPE hType, RTR3PTR pvUserR3, RTR0PTR pvUserR0,
3720 RTRCPTR pvUserRC, R3PTRTYPE(const char *) pszDesc, PPGMPHYSHANDLER *ppPhysHandler);
3721int pgmHandlerPhysicalExDup(PVMCC pVM, PPGMPHYSHANDLER pPhysHandlerSrc, PPGMPHYSHANDLER *ppPhysHandler);
3722int pgmHandlerPhysicalExRegister(PVMCC pVM, PPGMPHYSHANDLER pPhysHandler, RTGCPHYS GCPhys, RTGCPHYS GCPhysLast);
3723int pgmHandlerPhysicalExDeregister(PVMCC pVM, PPGMPHYSHANDLER pPhysHandler, int fRestoreAsRAM);
3724int pgmHandlerPhysicalExDestroy(PVMCC pVM, PPGMPHYSHANDLER pHandler);
3725void pgmR3HandlerPhysicalUpdateAll(PVM pVM);
3726bool pgmHandlerPhysicalIsAll(PVMCC pVM, RTGCPHYS GCPhys);
3727void pgmHandlerPhysicalResetAliasedPage(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhysPage, bool fDoAccounting);
3728DECLCALLBACK(void) pgmR3InfoHandlers(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
3729int pgmR3InitSavedState(PVM pVM, uint64_t cbRam);
3730
3731int pgmPhysAllocPage(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3732int pgmPhysAllocLargePage(PVMCC pVM, RTGCPHYS GCPhys);
3733int pgmPhysRecheckLargePage(PVMCC pVM, RTGCPHYS GCPhys, PPGMPAGE pLargePage);
3734int pgmPhysPageLoadIntoTlb(PVMCC pVM, RTGCPHYS GCPhys);
3735int pgmPhysPageLoadIntoTlbWithPage(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3736void pgmPhysPageMakeWriteMonitoredWritable(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3737int pgmPhysPageMakeWritable(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3738int pgmPhysPageMakeWritableAndMap(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3739int pgmPhysPageMap(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3740int pgmPhysPageMapReadOnly(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void const **ppv);
3741int pgmPhysPageMapByPageID(PVMCC pVM, uint32_t idPage, RTHCPHYS HCPhys, void **ppv);
3742int pgmPhysGCPhys2R3Ptr(PVMCC pVM, RTGCPHYS GCPhys, PRTR3PTR pR3Ptr);
3743int pgmPhysCr3ToHCPtr(PVM pVM, RTGCPHYS GCPhys, PRTR3PTR pR3Ptr);
3744int pgmPhysGCPhys2CCPtrInternalDepr(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3745int pgmPhysGCPhys2CCPtrInternal(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv, PPGMPAGEMAPLOCK pLock);
3746int pgmPhysGCPhys2CCPtrInternalReadOnly(PVMCC pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, const void **ppv, PPGMPAGEMAPLOCK pLock);
3747void pgmPhysReleaseInternalPageMappingLock(PVMCC pVM, PPGMPAGEMAPLOCK pLock);
3748PGM_ALL_CB2_PROTO(FNPGMPHYSHANDLER) pgmPhysRomWriteHandler;
3749#ifndef IN_RING3
3750DECLEXPORT(FNPGMPHYSHANDLER) pgmPhysHandlerRedirectToHC;
3751DECLEXPORT(FNPGMRZPHYSPFHANDLER) pgmPhysPfHandlerRedirectToHC;
3752DECLEXPORT(FNPGMRZPHYSPFHANDLER) pgmPhysRomWritePfHandler;
3753#endif
3754int pgmPhysFreePage(PVM pVM, PGMMFREEPAGESREQ pReq, uint32_t *pcPendingPages, PPGMPAGE pPage, RTGCPHYS GCPhys,
3755 PGMPAGETYPE enmNewType);
3756void pgmPhysInvalidRamRangeTlbs(PVMCC pVM);
3757void pgmPhysInvalidatePageMapTLB(PVMCC pVM);
3758void pgmPhysInvalidatePageMapTLBEntry(PVMCC pVM, RTGCPHYS GCPhys);
3759PPGMRAMRANGE pgmPhysGetRangeSlow(PVM pVM, RTGCPHYS GCPhys);
3760PPGMRAMRANGE pgmPhysGetRangeAtOrAboveSlow(PVM pVM, RTGCPHYS GCPhys);
3761PPGMPAGE pgmPhysGetPageSlow(PVM pVM, RTGCPHYS GCPhys);
3762int pgmPhysGetPageExSlow(PVM pVM, RTGCPHYS GCPhys, PPPGMPAGE ppPage);
3763int pgmPhysGetPageAndRangeExSlow(PVM pVM, RTGCPHYS GCPhys, PPPGMPAGE ppPage, PPGMRAMRANGE *ppRam);
3764
3765#ifdef IN_RING3
3766void pgmR3PhysRelinkRamRanges(PVM pVM);
3767int pgmR3PhysRamPreAllocate(PVM pVM);
3768int pgmR3PhysRamReset(PVM pVM);
3769int pgmR3PhysRomReset(PVM pVM);
3770int pgmR3PhysRamZeroAll(PVM pVM);
3771int pgmR3PhysChunkMap(PVM pVM, uint32_t idChunk, PPPGMCHUNKR3MAP ppChunk);
3772int pgmR3PhysRamTerm(PVM pVM);
3773void pgmR3PhysRomTerm(PVM pVM);
3774void pgmR3PhysAssertSharedPageChecksums(PVM pVM);
3775
3776int pgmR3PoolInit(PVM pVM);
3777void pgmR3PoolRelocate(PVM pVM);
3778void pgmR3PoolResetUnpluggedCpu(PVM pVM, PVMCPU pVCpu);
3779void pgmR3PoolReset(PVM pVM);
3780void pgmR3PoolClearAll(PVM pVM, bool fFlushRemTlb);
3781DECLCALLBACK(VBOXSTRICTRC) pgmR3PoolClearAllRendezvous(PVM pVM, PVMCPU pVCpu, void *fpvFlushRemTbl);
3782void pgmR3PoolWriteProtectPages(PVM pVM);
3783
3784#endif /* IN_RING3 */
3785int pgmPoolAlloc(PVMCC pVM, RTGCPHYS GCPhys, PGMPOOLKIND enmKind, PGMPOOLACCESS enmAccess, bool fA20Enabled,
3786 uint16_t iUser, uint32_t iUserTable, bool fLockPage, PPPGMPOOLPAGE ppPage);
3787void pgmPoolFree(PVM pVM, RTHCPHYS HCPhys, uint16_t iUser, uint32_t iUserTable);
3788void pgmPoolFreeByPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, uint16_t iUser, uint32_t iUserTable);
3789int pgmPoolFlushPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, bool fFlush = true /* DO NOT USE false UNLESS YOU KNOWN WHAT YOU'RE DOING!! */);
3790void pgmPoolFlushPageByGCPhys(PVM pVM, RTGCPHYS GCPhys);
3791PPGMPOOLPAGE pgmPoolGetPage(PPGMPOOL pPool, RTHCPHYS HCPhys);
3792PPGMPOOLPAGE pgmPoolQueryPageForDbg(PPGMPOOL pPool, RTHCPHYS HCPhys);
3793int pgmPoolHCPhys2Ptr(PVM pVM, RTHCPHYS HCPhys, void **ppv);
3794int pgmPoolSyncCR3(PVMCPUCC pVCpu);
3795bool pgmPoolIsDirtyPageSlow(PVMCC pVM, RTGCPHYS GCPhys);
3796void pgmPoolInvalidateDirtyPage(PVMCC pVM, RTGCPHYS GCPhysPT);
3797int pgmPoolTrackUpdateGCPhys(PVMCC pVM, RTGCPHYS GCPhysPage, PPGMPAGE pPhysPage, bool fFlushPTEs, bool *pfFlushTLBs);
3798void pgmPoolTracDerefGCPhysHint(PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTHCPHYS HCPhys, RTGCPHYS GCPhysHint, uint16_t iPte);
3799uint16_t pgmPoolTrackPhysExtAddref(PVMCC pVM, PPGMPAGE pPhysPage, uint16_t u16, uint16_t iShwPT, uint16_t iPte);
3800void pgmPoolTrackPhysExtDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPoolPage, PPGMPAGE pPhysPage, uint16_t iPte);
3801void pgmPoolMonitorChainFlush(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
3802void pgmPoolMonitorModifiedInsert(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
3803PGM_ALL_CB2_PROTO(FNPGMPHYSHANDLER) pgmPoolAccessHandler;
3804#ifndef IN_RING3
3805DECLEXPORT(FNPGMRZPHYSPFHANDLER) pgmRZPoolAccessPfHandler;
3806#endif
3807
3808void pgmPoolAddDirtyPage(PVMCC pVM, PPGMPOOL pPool, PPGMPOOLPAGE pPage);
3809void pgmPoolResetDirtyPages(PVMCC pVM);
3810void pgmPoolResetDirtyPage(PVMCC pVM, RTGCPTR GCPtrPage);
3811
3812int pgmR3ExitShadowModeBeforePoolFlush(PVMCPU pVCpu);
3813int pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu);
3814void pgmR3RefreshShadowModeAfterA20Change(PVMCPU pVCpu);
3815
3816#ifndef PGM_WITHOUT_MAPPINGS
3817void pgmMapSetShadowPDEs(PVM pVM, PPGMMAPPING pMap, unsigned iNewPDE);
3818void pgmMapClearShadowPDEs(PVM pVM, PPGMPOOLPAGE pShwPageCR3, PPGMMAPPING pMap, unsigned iOldPDE, bool fDeactivateCR3);
3819int pgmMapActivateCR3(PVM pVM, PPGMPOOLPAGE pShwPageCR3);
3820int pgmMapDeactivateCR3(PVM pVM, PPGMPOOLPAGE pShwPageCR3);
3821#endif
3822
3823int pgmShwMakePageSupervisorAndWritable(PVMCPUCC pVCpu, RTGCPTR GCPtr, bool fBigPage, uint32_t fOpFlags);
3824int pgmShwSyncPaePDPtr(PVMCPUCC pVCpu, RTGCPTR GCPtr, X86PGPAEUINT uGstPdpe, PX86PDPAE *ppPD);
3825int pgmShwSyncNestedPageLocked(PVMCPUCC pVCpu, RTGCPHYS GCPhysFault, uint32_t cPages, PGMMODE enmShwPagingMode);
3826
3827int pgmGstLazyMap32BitPD(PVMCPUCC pVCpu, PX86PD *ppPd);
3828int pgmGstLazyMapPaePDPT(PVMCPUCC pVCpu, PX86PDPT *ppPdpt);
3829int pgmGstLazyMapPaePD(PVMCPUCC pVCpu, uint32_t iPdpt, PX86PDPAE *ppPd);
3830int pgmGstLazyMapPml4(PVMCPUCC pVCpu, PX86PML4 *ppPml4);
3831int pgmGstPtWalk(PVMCPUCC pVCpu, RTGCPTR GCPtr, PPGMPTWALKGST pWalk);
3832int pgmGstPtWalkNext(PVMCPUCC pVCpu, RTGCPTR GCPtr, PPGMPTWALKGST pWalk);
3833
3834# if defined(VBOX_STRICT) && HC_ARCH_BITS == 64 && defined(IN_RING3)
3835FNDBGCCMD pgmR3CmdCheckDuplicatePages;
3836FNDBGCCMD pgmR3CmdShowSharedModules;
3837# endif
3838
3839void pgmLogState(PVM pVM);
3840
3841RT_C_DECLS_END
3842
3843/** @} */
3844
3845#endif /* !VMM_INCLUDED_SRC_include_PGMInternal_h */
3846
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