PGMInternal.h@ 45808

Last change on this file since 45808 was 45808, checked in by vboxsync, 12 years ago
VMM,DevVGA: Don't resolve RC symbols when HM is enabled (part 1).
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1	/* $Id: PGMInternal.h 45808 2013-04-29 12:41:07Z vboxsync $ */
2	/** @file
3	* PGM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 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 ___PGMInternal_h
19	#define ___PGMInternal_h
20
21	#include <VBox/cdefs.h>
22	#include <VBox/types.h>
23	#include <VBox/err.h>
24	#include <VBox/dbg.h>
25	#include <VBox/vmm/stam.h>
26	#include <VBox/param.h>
27	#include <VBox/vmm/vmm.h>
28	#include <VBox/vmm/mm.h>
29	#include <VBox/vmm/pdmcritsect.h>
30	#include <VBox/vmm/pdmapi.h>
31	#include <VBox/dis.h>
32	#include <VBox/vmm/dbgf.h>
33	#include <VBox/log.h>
34	#include <VBox/vmm/gmm.h>
35	#include <VBox/vmm/hm.h>
36	#include <VBox/vmm/hm_vmx.h>
37	#include "internal/pgm.h"
38	#include <iprt/asm.h>
39	#include <iprt/assert.h>
40	#include <iprt/avl.h>
41	#include <iprt/critsect.h>
42	#include <iprt/sha.h>
43
44
45
46	/** @defgroup grp_pgm_int Internals
47	* @ingroup grp_pgm
48	* @internal
49	* @{
50	*/
51
52
53	/** @name PGM Compile Time Config
54	* @{
55	*/
56
57	/**
58	* Indicates that there are no guest mappings in the shadow tables.
59	*
60	* Note! In ring-3 the macro is also used to exclude the managment of the
61	* intermediate context page tables. On 32-bit systems we use the intermediate
62	* context to support 64-bit guest execution. Thus, we cannot fully make it
63	* without mappings there even when VBOX_WITH_RAW_MODE is not defined.
64	*
65	* In raw-mode context there are by design always guest mappings (the code is
66	* executed from one), while in ring-0 there are none at all. Neither context
67	* manages the page tables for intermediate switcher context, that's all done in
68	* ring-3.
69	*
70	* On 32-bit darwin (hybrid kernel) we do 64-bit guest support differently, so
71	* there we can safely work without mappings if we don't compile in raw-mode.
72	*/
73	#if defined(IN_RING0) \
74	\|\| ( !defined(VBOX_WITH_RAW_MODE) \
75	&& ( HC_ARCH_BITS != 32 \
76	\|\| defined(VBOX_WITH_HYBRID_32BIT_KERNEL) \
77	\|\| !defined(VBOX_WITH_64_BITS_GUESTS) \
78	) \
79	)
80	# define PGM_WITHOUT_MAPPINGS
81	#endif
82
83	/**
84	* Check and skip global PDEs for non-global flushes
85	*/
86	#define PGM_SKIP_GLOBAL_PAGEDIRS_ON_NONGLOBAL_FLUSH
87
88	/**
89	* Optimization for PAE page tables that are modified often
90	*/
91	//#if 0 /* disabled again while debugging */
92	#ifndef IN_RC
93	# define PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
94	#endif
95	//#endif
96
97	/**
98	* Large page support enabled only on 64 bits hosts; applies to nested paging only.
99	*/
100	#if (HC_ARCH_BITS == 64) && !defined(IN_RC)
101	# define PGM_WITH_LARGE_PAGES
102	#endif
103
104	/**
105	* Enables optimizations for MMIO handlers that exploits X86_TRAP_PF_RSVD and
106	* VMX_EXIT_EPT_MISCONFIG.
107	*/
108	#if 1 /* testing */
109	# define PGM_WITH_MMIO_OPTIMIZATIONS
110	#endif
111
112	/**
113	* Sync N pages instead of a whole page table
114	*/
115	#define PGM_SYNC_N_PAGES
116
117	/**
118	* Number of pages to sync during a page fault
119	*
120	* When PGMPOOL_WITH_GCPHYS_TRACKING is enabled using high values here
121	* causes a lot of unnecessary extents and also is slower than taking more \#PFs.
122	*
123	* Note that \#PFs are much more expensive in the VT-x/AMD-V case due to
124	* world switch overhead, so let's sync more.
125	*/
126	# ifdef IN_RING0
127	/* Chose 32 based on the compile test in @bugref{4219}; 64 shows worse stats.
128	* 32 again shows better results than 16; slightly more overhead in the \#PF handler,
129	* but ~5% fewer faults.
130	*/
131	# define PGM_SYNC_NR_PAGES 32
132	#else
133	# define PGM_SYNC_NR_PAGES 8
134	#endif
135
136	/**
137	* Number of PGMPhysRead/Write cache entries (must be <= sizeof(uint64_t))
138	*/
139	#define PGM_MAX_PHYSCACHE_ENTRIES 64
140	#define PGM_MAX_PHYSCACHE_ENTRIES_MASK (PGM_MAX_PHYSCACHE_ENTRIES-1)
141
142
143	/** @def PGMPOOL_CFG_MAX_GROW
144	* The maximum number of pages to add to the pool in one go.
145	*/
146	#define PGMPOOL_CFG_MAX_GROW (_256K >> PAGE_SHIFT)
147
148	/** @def VBOX_STRICT_PGM_HANDLER_VIRTUAL
149	* Enables some extra assertions for virtual handlers (mainly phys2virt related).
150	*/
151	#ifdef VBOX_STRICT
152	# define VBOX_STRICT_PGM_HANDLER_VIRTUAL
153	#endif
154
155	/** @def VBOX_WITH_NEW_LAZY_PAGE_ALLOC
156	* Enables the experimental lazy page allocation code. */
157	/#define VBOX_WITH_NEW_LAZY_PAGE_ALLOC /
158
159	/** @def VBOX_WITH_REAL_WRITE_MONITORED_PAGES
160	* Enables real write monitoring of pages, i.e. mapping them read-only and
161	* only making them writable when getting a write access #PF. */
162	#define VBOX_WITH_REAL_WRITE_MONITORED_PAGES
163
164	/** @} */
165
166
167	/** @name PDPT and PML4 flags.
168	* These are placed in the three bits available for system programs in
169	* the PDPT and PML4 entries.
170	* @{ */
171	/** The entry is a permanent one and it's must always be present.
172	* Never free such an entry. */
173	#define PGM_PLXFLAGS_PERMANENT RT_BIT_64(10)
174	/** Mapping (hypervisor allocated pagetable). */
175	#define PGM_PLXFLAGS_MAPPING RT_BIT_64(11)
176	/** @} */
177
178	/** @name Page directory flags.
179	* These are placed in the three bits available for system programs in
180	* the page directory entries.
181	* @{ */
182	/** Mapping (hypervisor allocated pagetable). */
183	#define PGM_PDFLAGS_MAPPING RT_BIT_64(10)
184	/** Made read-only to facilitate dirty bit tracking. */
185	#define PGM_PDFLAGS_TRACK_DIRTY RT_BIT_64(11)
186	/** @} */
187
188	/** @name Page flags.
189	* These are placed in the three bits available for system programs in
190	* the page entries.
191	* @{ */
192	/** Made read-only to facilitate dirty bit tracking. */
193	#define PGM_PTFLAGS_TRACK_DIRTY RT_BIT_64(9)
194
195	#ifndef PGM_PTFLAGS_CSAM_VALIDATED
196	/** Scanned and approved by CSAM (tm).
197	* NOTE: Must be identical to the one defined in CSAMInternal.h!!
198	* @todo Move PGM_PTFLAGS_* and PGM_PDFLAGS_* to VBox/vmm/pgm.h. */
199	#define PGM_PTFLAGS_CSAM_VALIDATED RT_BIT_64(11)
200	#endif
201
202	/** @} */
203
204	/** @name Defines used to indicate the shadow and guest paging in the templates.
205	* @{ */
206	#define PGM_TYPE_REAL 1
207	#define PGM_TYPE_PROT 2
208	#define PGM_TYPE_32BIT 3
209	#define PGM_TYPE_PAE 4
210	#define PGM_TYPE_AMD64 5
211	#define PGM_TYPE_NESTED 6
212	#define PGM_TYPE_EPT 7
213	#define PGM_TYPE_MAX PGM_TYPE_EPT
214	/** @} */
215
216	/** Macro for checking if the guest is using paging.
217	* @param uGstType PGM_TYPE_*
218	* @param uShwType PGM_TYPE_*
219	* @remark ASSUMES certain order of the PGM_TYPE_* values.
220	*/
221	#define PGM_WITH_PAGING(uGstType, uShwType) \
222	( (uGstType) >= PGM_TYPE_32BIT \
223	&& (uShwType) != PGM_TYPE_NESTED \
224	&& (uShwType) != PGM_TYPE_EPT)
225
226	/** Macro for checking if the guest supports the NX bit.
227	* @param uGstType PGM_TYPE_*
228	* @param uShwType PGM_TYPE_*
229	* @remark ASSUMES certain order of the PGM_TYPE_* values.
230	*/
231	#define PGM_WITH_NX(uGstType, uShwType) \
232	( (uGstType) >= PGM_TYPE_PAE \
233	&& (uShwType) != PGM_TYPE_NESTED \
234	&& (uShwType) != PGM_TYPE_EPT)
235
236
237	/** @def PGM_HCPHYS_2_PTR
238	* Maps a HC physical page pool address to a virtual address.
239	*
240	* @returns VBox status code.
241	* @param pVM Pointer to the VM.
242	* @param pVCpu The current CPU.
243	* @param HCPhys The HC physical address to map to a virtual one.
244	* @param ppv Where to store the virtual address. No need to cast
245	* this.
246	*
247	* @remark Use with care as we don't have so much dynamic mapping space in
248	* ring-0 on 32-bit darwin and in RC.
249	* @remark There is no need to assert on the result.
250	*/
251	#if defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0) \|\| defined(IN_RC)
252	# define PGM_HCPHYS_2_PTR(pVM, pVCpu, HCPhys, ppv) \
253	pgmRZDynMapHCPageInlined(pVCpu, HCPhys, (void **)(ppv) RTLOG_COMMA_SRC_POS)
254	#else
255	# define PGM_HCPHYS_2_PTR(pVM, pVCpu, HCPhys, ppv) \
256	MMPagePhys2PageEx(pVM, HCPhys, (void **)(ppv))
257	#endif
258
259	/** @def PGM_GCPHYS_2_PTR_V2
260	* Maps a GC physical page address to a virtual address.
261	*
262	* @returns VBox status code.
263	* @param pVM Pointer to the VM.
264	* @param pVCpu The current CPU.
265	* @param GCPhys The GC physical address to map to a virtual one.
266	* @param ppv Where to store the virtual address. No need to cast this.
267	*
268	* @remark Use with care as we don't have so much dynamic mapping space in
269	* ring-0 on 32-bit darwin and in RC.
270	* @remark There is no need to assert on the result.
271	*/
272	#if defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0) \|\| defined(IN_RC)
273	# define PGM_GCPHYS_2_PTR_V2(pVM, pVCpu, GCPhys, ppv) \
274	pgmRZDynMapGCPageV2Inlined(pVM, pVCpu, GCPhys, (void **)(ppv) RTLOG_COMMA_SRC_POS)
275	#else
276	# define PGM_GCPHYS_2_PTR_V2(pVM, pVCpu, GCPhys, ppv) \
277	pgmPhysGCPhys2R3Ptr(pVM, GCPhys, (PRTR3PTR)(ppv)) /** @todo this isn't asserting! */
278	#endif
279
280	/** @def PGM_GCPHYS_2_PTR
281	* Maps a GC physical page address to a virtual address.
282	*
283	* @returns VBox status code.
284	* @param pVM Pointer to the VM.
285	* @param GCPhys The GC physical address to map to a virtual one.
286	* @param ppv Where to store the virtual address. No need to cast this.
287	*
288	* @remark Use with care as we don't have so much dynamic mapping space in
289	* ring-0 on 32-bit darwin and in RC.
290	* @remark There is no need to assert on the result.
291	*/
292	#define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) PGM_GCPHYS_2_PTR_V2(pVM, VMMGetCpu(pVM), GCPhys, ppv)
293
294	/** @def PGM_GCPHYS_2_PTR_BY_VMCPU
295	* Maps a GC physical page address to a virtual address.
296	*
297	* @returns VBox status code.
298	* @param pVCpu The current CPU.
299	* @param GCPhys The GC physical address to map to a virtual one.
300	* @param ppv Where to store the virtual address. No need to cast this.
301	*
302	* @remark Use with care as we don't have so much dynamic mapping space in
303	* ring-0 on 32-bit darwin and in RC.
304	* @remark There is no need to assert on the result.
305	*/
306	#define PGM_GCPHYS_2_PTR_BY_VMCPU(pVCpu, GCPhys, ppv) PGM_GCPHYS_2_PTR_V2((pVCpu)->CTX_SUFF(pVM), pVCpu, GCPhys, ppv)
307
308	/** @def PGM_GCPHYS_2_PTR_EX
309	* Maps a unaligned GC physical page address to a virtual address.
310	*
311	* @returns VBox status code.
312	* @param pVM Pointer to the VM.
313	* @param GCPhys The GC physical address to map to a virtual one.
314	* @param ppv Where to store the virtual address. No need to cast this.
315	*
316	* @remark Use with care as we don't have so much dynamic mapping space in
317	* ring-0 on 32-bit darwin and in RC.
318	* @remark There is no need to assert on the result.
319	*/
320	#if defined(IN_RC) \|\| defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
321	# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) \
322	pgmRZDynMapGCPageOffInlined(VMMGetCpu(pVM), GCPhys, (void **)(ppv) RTLOG_COMMA_SRC_POS)
323	#else
324	# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) \
325	pgmPhysGCPhys2R3Ptr(pVM, GCPhys, (PRTR3PTR)(ppv)) /** @todo this isn't asserting! */
326	#endif
327
328	/** @def PGM_DYNMAP_UNUSED_HINT
329	* Hints to the dynamic mapping code in RC and R0/darwin that the specified page
330	* is no longer used.
331	*
332	* For best effect only apply this to the page that was mapped most recently.
333	*
334	* @param pVCpu The current CPU.
335	* @param pvPage The pool page.
336	*/
337	#if defined(IN_RC) \|\| defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
338	# ifdef LOG_ENABLED
339	# define PGM_DYNMAP_UNUSED_HINT(pVCpu, pvPage) pgmRZDynMapUnusedHint(pVCpu, pvPage, RT_SRC_POS)
340	# else
341	# define PGM_DYNMAP_UNUSED_HINT(pVCpu, pvPage) pgmRZDynMapUnusedHint(pVCpu, pvPage)
342	# endif
343	#else
344	# define PGM_DYNMAP_UNUSED_HINT(pVCpu, pvPage) do {} while (0)
345	#endif
346
347	/** @def PGM_DYNMAP_UNUSED_HINT_VM
348	* Hints to the dynamic mapping code in RC and R0/darwin that the specified page
349	* is no longer used.
350	*
351	* For best effect only apply this to the page that was mapped most recently.
352	*
353	* @param pVM Pointer to the VM.
354	* @param pvPage The pool page.
355	*/
356	#define PGM_DYNMAP_UNUSED_HINT_VM(pVM, pvPage) PGM_DYNMAP_UNUSED_HINT(VMMGetCpu(pVM), pvPage)
357
358
359	/** @def PGM_INVL_PG
360	* Invalidates a page.
361	*
362	* @param pVCpu Pointer to the VMCPU.
363	* @param GCVirt The virtual address of the page to invalidate.
364	*/
365	#ifdef IN_RC
366	# define PGM_INVL_PG(pVCpu, GCVirt) ASMInvalidatePage((void *)(uintptr_t)(GCVirt))
367	#elif defined(IN_RING0)
368	# define PGM_INVL_PG(pVCpu, GCVirt) HMInvalidatePage(pVCpu, (RTGCPTR)(GCVirt))
369	#else
370	# define PGM_INVL_PG(pVCpu, GCVirt) HMInvalidatePage(pVCpu, (RTGCPTR)(GCVirt))
371	#endif
372
373	/** @def PGM_INVL_PG_ALL_VCPU
374	* Invalidates a page on all VCPUs
375	*
376	* @param pVM Pointer to the VM.
377	* @param GCVirt The virtual address of the page to invalidate.
378	*/
379	#ifdef IN_RC
380	# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) ASMInvalidatePage((void *)(uintptr_t)(GCVirt))
381	#elif defined(IN_RING0)
382	# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) HMInvalidatePageOnAllVCpus(pVM, (RTGCPTR)(GCVirt))
383	#else
384	# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) HMInvalidatePageOnAllVCpus(pVM, (RTGCPTR)(GCVirt))
385	#endif
386
387	/** @def PGM_INVL_BIG_PG
388	* Invalidates a 4MB page directory entry.
389	*
390	* @param pVCpu Pointer to the VMCPU.
391	* @param GCVirt The virtual address within the page directory to invalidate.
392	*/
393	#ifdef IN_RC
394	# define PGM_INVL_BIG_PG(pVCpu, GCVirt) ASMReloadCR3()
395	#elif defined(IN_RING0)
396	# define PGM_INVL_BIG_PG(pVCpu, GCVirt) HMFlushTLB(pVCpu)
397	#else
398	# define PGM_INVL_BIG_PG(pVCpu, GCVirt) HMFlushTLB(pVCpu)
399	#endif
400
401	/** @def PGM_INVL_VCPU_TLBS()
402	* Invalidates the TLBs of the specified VCPU
403	*
404	* @param pVCpu Pointer to the VMCPU.
405	*/
406	#ifdef IN_RC
407	# define PGM_INVL_VCPU_TLBS(pVCpu) ASMReloadCR3()
408	#elif defined(IN_RING0)
409	# define PGM_INVL_VCPU_TLBS(pVCpu) HMFlushTLB(pVCpu)
410	#else
411	# define PGM_INVL_VCPU_TLBS(pVCpu) HMFlushTLB(pVCpu)
412	#endif
413
414	/** @def PGM_INVL_ALL_VCPU_TLBS()
415	* Invalidates the TLBs of all VCPUs
416	*
417	* @param pVM Pointer to the VM.
418	*/
419	#ifdef IN_RC
420	# define PGM_INVL_ALL_VCPU_TLBS(pVM) ASMReloadCR3()
421	#elif defined(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	*/
440	typedef 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	*/
469	typedef struct PGMSHWPTPAE
470	{
471	PGMSHWPTEPAE a[X86_PG_PAE_ENTRIES];
472	} PGMSHWPTPAE;
473
474	#else
475	typedef X86PTEPAE PGMSHWPTEPAE;
476	typedef 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. */
497	typedef PGMSHWPTEPAE *PPGMSHWPTEPAE;
498	/** Pointer to a const shadow PAE PTE. */
499	typedef PGMSHWPTEPAE const *PCPGMSHWPTEPAE;
500
501	/** Pointer to a shadow PAE page table. */
502	typedef PGMSHWPTPAE *PPGMSHWPTPAE;
503	/** Pointer to a const shadow PAE page table. */
504	typedef PGMSHWPTPAE const *PCPGMSHWPTPAE;
505	/** @} */
506
507
508	/** Size of the GCPtrConflict array in PGMMAPPING.
509	* @remarks Must be a power of two. */
510	#define PGMMAPPING_CONFLICT_MAX 8
511
512	/**
513	* Structure for tracking GC Mappings.
514	*
515	* This structure is used by linked list in both GC and HC.
516	*/
517	typedef struct PGMMAPPING
518	{
519	/** Pointer to next entry. */
520	R3PTRTYPE(struct PGMMAPPING *) pNextR3;
521	/** Pointer to next entry. */
522	R0PTRTYPE(struct PGMMAPPING *) pNextR0;
523	/** Pointer to next entry. */
524	RCPTRTYPE(struct PGMMAPPING *) pNextRC;
525	/** Indicate whether this entry is finalized. */
526	bool fFinalized;
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 RC virtual address of the 32-bit page table. */
563	RCPTRTYPE(PX86PT) pPTRC;
564	/** The RC virtual address of the two PAE page table. */
565	RCPTRTYPE(PPGMSHWPTPAE) paPaePTsRC;
566	/** The R0 virtual address of the 32-bit page table. */
567	R0PTRTYPE(PX86PT) pPTR0;
568	/** The R0 virtual address of the two PAE page table. */
569	R0PTRTYPE(PPGMSHWPTPAE) paPaePTsR0;
570	} aPTs[1];
571	} PGMMAPPING;
572	/** Pointer to structure for tracking GC Mappings. */
573	typedef struct PGMMAPPING *PPGMMAPPING;
574
575
576	/**
577	* Physical page access handler structure.
578	*
579	* This is used to keep track of physical address ranges
580	* which are being monitored in some kind of way.
581	*/
582	typedef struct PGMPHYSHANDLER
583	{
584	AVLROGCPHYSNODECORE Core;
585	/** Access type. */
586	PGMPHYSHANDLERTYPE enmType;
587	/** Number of pages to update. */
588	uint32_t cPages;
589	/** Set if we have pages that have been aliased. */
590	uint32_t cAliasedPages;
591	/** Set if we have pages that have temporarily been disabled. */
592	uint32_t cTmpOffPages;
593	/** Pointer to R3 callback function. */
594	R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnHandlerR3;
595	/** User argument for R3 handlers. */
596	R3PTRTYPE(void *) pvUserR3;
597	/** Pointer to R0 callback function. */
598	R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnHandlerR0;
599	/** User argument for R0 handlers. */
600	R0PTRTYPE(void *) pvUserR0;
601	/** Pointer to RC callback function. */
602	RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnHandlerRC;
603	/** User argument for RC handlers. */
604	RCPTRTYPE(void *) pvUserRC;
605	/** Description / Name. For easing debugging. */
606	R3PTRTYPE(const char *) pszDesc;
607	#ifdef VBOX_WITH_STATISTICS
608	/** Profiling of this handler. */
609	STAMPROFILE Stat;
610	#endif
611	} PGMPHYSHANDLER;
612	/** Pointer to a physical page access handler structure. */
613	typedef PGMPHYSHANDLER *PPGMPHYSHANDLER;
614
615
616	/**
617	* Cache node for the physical addresses covered by a virtual handler.
618	*/
619	typedef struct PGMPHYS2VIRTHANDLER
620	{
621	/** Core node for the tree based on physical ranges. */
622	AVLROGCPHYSNODECORE Core;
623	/** Offset from this struct to the PGMVIRTHANDLER structure. */
624	int32_t offVirtHandler;
625	/** Offset of the next alias relative to this one.
626	* Bit 0 is used for indicating whether we're in the tree.
627	* Bit 1 is used for indicating that we're the head node.
628	*/
629	int32_t offNextAlias;
630	} PGMPHYS2VIRTHANDLER;
631	/** Pointer to a phys to virtual handler structure. */
632	typedef PGMPHYS2VIRTHANDLER *PPGMPHYS2VIRTHANDLER;
633
634	/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
635	* node is in the tree. */
636	#define PGMPHYS2VIRTHANDLER_IN_TREE RT_BIT(0)
637	/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
638	* node is in the head of an alias chain.
639	* The PGMPHYS2VIRTHANDLER_IN_TREE is always set if this bit is set. */
640	#define PGMPHYS2VIRTHANDLER_IS_HEAD RT_BIT(1)
641	/** The mask to apply to PGMPHYS2VIRTHANDLER::offNextAlias to get the offset. */
642	#define PGMPHYS2VIRTHANDLER_OFF_MASK (~(int32_t)3)
643
644
645	/**
646	* Virtual page access handler structure.
647	*
648	* This is used to keep track of virtual address ranges
649	* which are being monitored in some kind of way.
650	*/
651	typedef struct PGMVIRTHANDLER
652	{
653	/** Core node for the tree based on virtual ranges. */
654	AVLROGCPTRNODECORE Core;
655	/** Size of the range (in bytes). */
656	RTGCPTR cb;
657	/** Number of cache pages. */
658	uint32_t cPages;
659	/** Access type. */
660	PGMVIRTHANDLERTYPE enmType;
661	/** Pointer to the RC callback function. */
662	RCPTRTYPE(PFNPGMRCVIRTHANDLER) pfnHandlerRC;
663	#if HC_ARCH_BITS == 64
664	RTRCPTR padding;
665	#endif
666	/** Pointer to the R3 callback function for invalidation. */
667	R3PTRTYPE(PFNPGMR3VIRTINVALIDATE) pfnInvalidateR3;
668	/** Pointer to the R3 callback function. */
669	R3PTRTYPE(PFNPGMR3VIRTHANDLER) pfnHandlerR3;
670	/** Description / Name. For easing debugging. */
671	R3PTRTYPE(const char *) pszDesc;
672	#ifdef VBOX_WITH_STATISTICS
673	/** Profiling of this handler. */
674	STAMPROFILE Stat;
675	#endif
676	/** Array of cached physical addresses for the monitored ranged. */
677	PGMPHYS2VIRTHANDLER aPhysToVirt[HC_ARCH_BITS == 32 ? 1 : 2];
678	} PGMVIRTHANDLER;
679	/** Pointer to a virtual page access handler structure. */
680	typedef PGMVIRTHANDLER *PPGMVIRTHANDLER;
681
682
683	/** @name Page type predicates.
684	* @{ */
685	#define PGMPAGETYPE_IS_READABLE(type) ( (type) <= PGMPAGETYPE_ROM )
686	#define PGMPAGETYPE_IS_WRITEABLE(type) ( (type) <= PGMPAGETYPE_ROM_SHADOW )
687	#define PGMPAGETYPE_IS_RWX(type) ( (type) <= PGMPAGETYPE_ROM_SHADOW )
688	#define PGMPAGETYPE_IS_ROX(type) ( (type) == PGMPAGETYPE_ROM )
689	#define PGMPAGETYPE_IS_NP(type) ( (type) == PGMPAGETYPE_MMIO )
690	/** @} */
691
692
693	/**
694	* A Physical Guest Page tracking structure.
695	*
696	* The format of this structure is complicated because we have to fit a lot
697	* of information into as few bits as possible. The format is also subject
698	* to change (there is one coming up soon). Which means that for we'll be
699	* using PGM_PAGE_GET_, PGM_PAGE_IS_ and PGM_PAGE_SET_ macros for all
700	* accesses to the structure.
701	*/
702	typedef union PGMPAGE
703	{
704	/** Structured view. */
705	struct
706	{
707	/** 1:0 - The physical handler state (PGM_PAGE_HNDL_PHYS_STATE_). /
708	uint64_t u2HandlerPhysStateY : 2;
709	/** 3:2 - Paging structure needed to map the page
710	* (PGM_PAGE_PDE_TYPE_). /
711	uint64_t u2PDETypeY : 2;
712	/** 4 - Indicator of dirty page for fault tolerance tracking. */
713	uint64_t fFTDirtyY : 1;
714	/** 5 - Flag indicating that a write monitored page was written to
715	* when set. */
716	uint64_t fWrittenToY : 1;
717	/** 7:6 - Unused. */
718	uint64_t u2Unused0 : 2;
719	/** 9:8 - The physical handler state (PGM_PAGE_HNDL_VIRT_STATE_). /
720	uint64_t u2HandlerVirtStateY : 2;
721	/** 11:10 - Unused. */
722	uint64_t u2Unused1 : 2;
723	/** 12:48 - The host physical frame number (shift left to get the
724	* address). */
725	uint64_t HCPhysFN : 36;
726	/** 50:48 - The page state. */
727	uint64_t uStateY : 3;
728	/** 51:53 - The page type (PGMPAGETYPE). */
729	uint64_t uTypeY : 3;
730	/** 63:54 - PTE index for usage tracking (page pool). */
731	uint64_t u10PteIdx : 10;
732
733	/** The GMM page ID. */
734	uint32_t idPage;
735	/** Usage tracking (page pool). */
736	uint16_t u16TrackingY;
737	/** The number of read locks on this page. */
738	uint8_t cReadLocksY;
739	/** The number of write locks on this page. */
740	uint8_t cWriteLocksY;
741	} s;
742
743	/** 64-bit integer view. */
744	uint64_t au64[2];
745	/** 16-bit view. */
746	uint32_t au32[4];
747	/** 16-bit view. */
748	uint16_t au16[8];
749	/** 8-bit view. */
750	uint8_t au8[16];
751	} PGMPAGE;
752	AssertCompileSize(PGMPAGE, 16);
753	/** Pointer to a physical guest page. */
754	typedef PGMPAGE *PPGMPAGE;
755	/** Pointer to a const physical guest page. */
756	typedef const PGMPAGE *PCPGMPAGE;
757	/** Pointer to a physical guest page pointer. */
758	typedef PPGMPAGE *PPPGMPAGE;
759
760
761	/**
762	* Clears the page structure.
763	* @param a_pPage Pointer to the physical guest page tracking structure.
764	*/
765	#define PGM_PAGE_CLEAR(a_pPage) \
766	do { \
767	(a_pPage)->au64[0] = 0; \
768	(a_pPage)->au64[1] = 0; \
769	} while (0)
770
771	/**
772	* Initializes the page structure.
773	* @param a_pPage Pointer to the physical guest page tracking structure.
774	*/
775	#define PGM_PAGE_INIT(a_pPage, a_HCPhys, a_idPage, a_uType, a_uState) \
776	do { \
777	RTHCPHYS SetHCPhysTmp = (a_HCPhys); \
778	AssertFatal(!(SetHCPhysTmp & ~UINT64_C(0x0000fffffffff000))); \
779	(a_pPage)->au64[0] = SetHCPhysTmp; \
780	(a_pPage)->au64[1] = 0; \
781	(a_pPage)->s.idPage = (a_idPage); \
782	(a_pPage)->s.uStateY = (a_uState); \
783	(a_pPage)->s.uTypeY = (a_uType); \
784	} while (0)
785
786	/**
787	* Initializes the page structure of a ZERO page.
788	* @param a_pPage Pointer to the physical guest page tracking structure.
789	* @param a_pVM The VM handle (for getting the zero page address).
790	* @param a_uType The page type (PGMPAGETYPE).
791	*/
792	#define PGM_PAGE_INIT_ZERO(a_pPage, a_pVM, a_uType) \
793	PGM_PAGE_INIT((a_pPage), (a_pVM)->pgm.s.HCPhysZeroPg, NIL_GMM_PAGEID, (a_uType), PGM_PAGE_STATE_ZERO)
794
795
796	/** @name The Page state, PGMPAGE::uStateY.
797	* @{ */
798	/** The zero page.
799	* This is a per-VM page that's never ever mapped writable. */
800	#define PGM_PAGE_STATE_ZERO 0
801	/** A allocated page.
802	* This is a per-VM page allocated from the page pool (or wherever
803	* we get MMIO2 pages from if the type is MMIO2).
804	*/
805	#define PGM_PAGE_STATE_ALLOCATED 1
806	/** A allocated page that's being monitored for writes.
807	* The shadow page table mappings are read-only. When a write occurs, the
808	* fWrittenTo member is set, the page remapped as read-write and the state
809	* moved back to allocated. */
810	#define PGM_PAGE_STATE_WRITE_MONITORED 2
811	/** The page is shared, aka. copy-on-write.
812	* This is a page that's shared with other VMs. */
813	#define PGM_PAGE_STATE_SHARED 3
814	/** The page is ballooned, so no longer available for this VM. */
815	#define PGM_PAGE_STATE_BALLOONED 4
816	/** @} */
817
818
819	/** Asserts lock ownership in some of the PGM_PAGE_XXX macros. */
820	#if defined(VBOX_STRICT) && 0 /** @todo triggers in pgmRZDynMapGCPageV2Inlined */
821	# define PGM_PAGE_ASSERT_LOCK(a_pVM) PGM_LOCK_ASSERT_OWNER(a_pVM)
822	#else
823	# define PGM_PAGE_ASSERT_LOCK(a_pVM) do { } while (0)
824	#endif
825
826	/**
827	* Gets the page state.
828	* @returns page state (PGM_PAGE_STATE_*).
829	* @param a_pPage Pointer to the physical guest page tracking structure.
830	*
831	* @remarks See PGM_PAGE_GET_HCPHYS_NA for remarks about GCC and strict
832	* builds.
833	*/
834	#define PGM_PAGE_GET_STATE_NA(a_pPage) ( (a_pPage)->s.uStateY )
835	#if defined(__GNUC__) && defined(VBOX_STRICT)
836	# define PGM_PAGE_GET_STATE(a_pPage) __extension__ ({ PGM_PAGE_ASSERT_LOCK(pVM); PGM_PAGE_GET_STATE_NA(a_pPage); })
837	#else
838	# define PGM_PAGE_GET_STATE PGM_PAGE_GET_STATE_NA
839	#endif
840
841	/**
842	* Sets the page state.
843	* @param a_pVM The VM handle, only used for lock ownership assertions.
844	* @param a_pPage Pointer to the physical guest page tracking structure.
845	* @param a_uState The new page state.
846	*/
847	#define PGM_PAGE_SET_STATE(a_pVM, a_pPage, a_uState) \
848	do { (a_pPage)->s.uStateY = (a_uState); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
849
850
851	/**
852	* Gets the host physical address of the guest page.
853	* @returns host physical address (RTHCPHYS).
854	* @param a_pPage Pointer to the physical guest page tracking structure.
855	*
856	* @remarks In strict builds on gcc platforms, this macro will make some ugly
857	* assumption about a valid pVM variable/parameter being in the
858	* current context. It will use this pVM variable to assert that the
859	* PGM lock is held. Use the PGM_PAGE_GET_HCPHYS_NA in contexts where
860	* pVM is not around.
861	*/
862	#if 0
863	# define PGM_PAGE_GET_HCPHYS_NA(a_pPage) ( (a_pPage)->s.HCPhysFN << 12 )
864	# define PGM_PAGE_GET_HCPHYS PGM_PAGE_GET_HCPHYS_NA
865	#else
866	# define PGM_PAGE_GET_HCPHYS_NA(a_pPage) ( (a_pPage)->au64[0] & UINT64_C(0x0000fffffffff000) )
867	# if defined(__GNUC__) && defined(VBOX_STRICT)
868	# define PGM_PAGE_GET_HCPHYS(a_pPage) __extension__ ({ PGM_PAGE_ASSERT_LOCK(pVM); PGM_PAGE_GET_HCPHYS_NA(a_pPage); })
869	# else
870	# define PGM_PAGE_GET_HCPHYS PGM_PAGE_GET_HCPHYS_NA
871	# endif
872	#endif
873
874	/**
875	* Sets the host physical address of the guest page.
876	*
877	* @param a_pVM The VM handle, only used for lock ownership assertions.
878	* @param a_pPage Pointer to the physical guest page tracking structure.
879	* @param a_HCPhys The new host physical address.
880	*/
881	#define PGM_PAGE_SET_HCPHYS(a_pVM, a_pPage, a_HCPhys) \
882	do { \
883	RTHCPHYS const SetHCPhysTmp = (a_HCPhys); \
884	AssertFatal(!(SetHCPhysTmp & ~UINT64_C(0x0000fffffffff000))); \
885	(a_pPage)->s.HCPhysFN = SetHCPhysTmp >> 12; \
886	PGM_PAGE_ASSERT_LOCK(a_pVM); \
887	} while (0)
888
889	/**
890	* Get the Page ID.
891	* @returns The Page ID; NIL_GMM_PAGEID if it's a ZERO page.
892	* @param a_pPage Pointer to the physical guest page tracking structure.
893	*/
894	#define PGM_PAGE_GET_PAGEID(a_pPage) ( (uint32_t)(a_pPage)->s.idPage )
895
896	/**
897	* Sets the Page ID.
898	* @param a_pVM The VM handle, only used for lock ownership assertions.
899	* @param a_pPage Pointer to the physical guest page tracking structure.
900	* @param a_idPage The new page ID.
901	*/
902	#define PGM_PAGE_SET_PAGEID(a_pVM, a_pPage, a_idPage) \
903	do { \
904	(a_pPage)->s.idPage = (a_idPage); \
905	PGM_PAGE_ASSERT_LOCK(a_pVM); \
906	} while (0)
907
908	/**
909	* Get the Chunk ID.
910	* @returns The Chunk ID; NIL_GMM_CHUNKID if it's a ZERO page.
911	* @param a_pPage Pointer to the physical guest page tracking structure.
912	*/
913	#define PGM_PAGE_GET_CHUNKID(a_pPage) ( PGM_PAGE_GET_PAGEID(a_pPage) >> GMM_CHUNKID_SHIFT )
914
915	/**
916	* Get the index of the page within the allocation chunk.
917	* @returns The page index.
918	* @param a_pPage Pointer to the physical guest page tracking structure.
919	*/
920	#define PGM_PAGE_GET_PAGE_IN_CHUNK(a_pPage) ( PGM_PAGE_GET_PAGEID(a_pPage) & GMM_PAGEID_IDX_MASK )
921
922	/**
923	* Gets the page type.
924	* @returns The page type.
925	* @param a_pPage Pointer to the physical guest page tracking structure.
926	*
927	* @remarks See PGM_PAGE_GET_HCPHYS_NA for remarks about GCC and strict
928	* builds.
929	*/
930	#define PGM_PAGE_GET_TYPE_NA(a_pPage) ( (a_pPage)->s.uTypeY )
931	#if defined(__GNUC__) && defined(VBOX_STRICT)
932	# define PGM_PAGE_GET_TYPE(a_pPage) __extension__ ({ PGM_PAGE_ASSERT_LOCK(pVM); PGM_PAGE_GET_TYPE_NA(a_pPage); })
933	#else
934	# define PGM_PAGE_GET_TYPE PGM_PAGE_GET_TYPE_NA
935	#endif
936
937	/**
938	* Sets the page type.
939	*
940	* @param a_pVM The VM handle, only used for lock ownership assertions.
941	* @param a_pPage Pointer to the physical guest page tracking structure.
942	* @param a_enmType The new page type (PGMPAGETYPE).
943	*/
944	#define PGM_PAGE_SET_TYPE(a_pVM, a_pPage, a_enmType) \
945	do { (a_pPage)->s.uTypeY = (a_enmType); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
946
947	/**
948	* Gets the page table index
949	* @returns The page table index.
950	* @param a_pPage Pointer to the physical guest page tracking structure.
951	*/
952	#define PGM_PAGE_GET_PTE_INDEX(a_pPage) ( (a_pPage)->s.u10PteIdx )
953
954	/**
955	* Sets the page table index.
956	* @param a_pVM The VM handle, only used for lock ownership assertions.
957	* @param a_pPage Pointer to the physical guest page tracking structure.
958	* @param a_iPte New page table index.
959	*/
960	#define PGM_PAGE_SET_PTE_INDEX(a_pVM, a_pPage, a_iPte) \
961	do { (a_pPage)->s.u10PteIdx = (a_iPte); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
962
963	/**
964	* Checks if the page is marked for MMIO.
965	* @returns true/false.
966	* @param a_pPage Pointer to the physical guest page tracking structure.
967	*/
968	#define PGM_PAGE_IS_MMIO(a_pPage) ( (a_pPage)->s.uTypeY == PGMPAGETYPE_MMIO )
969
970	/**
971	* Checks if the page is backed by the ZERO page.
972	* @returns true/false.
973	* @param a_pPage Pointer to the physical guest page tracking structure.
974	*/
975	#define PGM_PAGE_IS_ZERO(a_pPage) ( (a_pPage)->s.uStateY == PGM_PAGE_STATE_ZERO )
976
977	/**
978	* Checks if the page is backed by a SHARED page.
979	* @returns true/false.
980	* @param a_pPage Pointer to the physical guest page tracking structure.
981	*/
982	#define PGM_PAGE_IS_SHARED(a_pPage) ( (a_pPage)->s.uStateY == PGM_PAGE_STATE_SHARED )
983
984	/**
985	* Checks if the page is ballooned.
986	* @returns true/false.
987	* @param a_pPage Pointer to the physical guest page tracking structure.
988	*/
989	#define PGM_PAGE_IS_BALLOONED(a_pPage) ( (a_pPage)->s.uStateY == PGM_PAGE_STATE_BALLOONED )
990
991	/**
992	* Checks if the page is allocated.
993	* @returns true/false.
994	* @param a_pPage Pointer to the physical guest page tracking structure.
995	*/
996	#define PGM_PAGE_IS_ALLOCATED(a_pPage) ( (a_pPage)->s.uStateY == PGM_PAGE_STATE_ALLOCATED )
997
998	/**
999	* Marks the page as written to (for GMM change monitoring).
1000	* @param a_pVM The VM handle, only used for lock ownership assertions.
1001	* @param a_pPage Pointer to the physical guest page tracking structure.
1002	*/
1003	#define PGM_PAGE_SET_WRITTEN_TO(a_pVM, a_pPage) \
1004	do { (a_pPage)->au8[1] \|= UINT8_C(0x80); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0) /// FIXME FIXME
1005
1006	/**
1007	* Clears the written-to indicator.
1008	* @param a_pVM The VM handle, only used for lock ownership assertions.
1009	* @param a_pPage Pointer to the physical guest page tracking structure.
1010	*/
1011	#define PGM_PAGE_CLEAR_WRITTEN_TO(a_pVM, a_pPage) \
1012	do { (a_pPage)->s.fWrittenToY = 0; PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
1013
1014	/**
1015	* Checks if the page was marked as written-to.
1016	* @returns true/false.
1017	* @param a_pPage Pointer to the physical guest page tracking structure.
1018	*/
1019	#define PGM_PAGE_IS_WRITTEN_TO(a_pPage) ( (a_pPage)->s.fWrittenToY )
1020
1021	/**
1022	* Marks the page as dirty for FTM
1023	* @param a_pPage Pointer to the physical guest page tracking structure.
1024	*/
1025	#define PGM_PAGE_SET_FT_DIRTY(a_pPage) do { (a_pPage)->s.fFTDirtyY = 1; } while (0)
1026
1027	/**
1028	* Clears the FTM dirty indicator
1029	* @param a_pPage Pointer to the physical guest page tracking structure.
1030	*/
1031	#define PGM_PAGE_CLEAR_FT_DIRTY(a_pPage) do { (a_pPage)->s.fFTDirtyY = 0; } while (0)
1032
1033	/**
1034	* Checks if the page was marked as dirty for FTM
1035	* @returns true/false.
1036	* @param a_pPage Pointer to the physical guest page tracking structure.
1037	*/
1038	#define PGM_PAGE_IS_FT_DIRTY(a_pPage) ( (a_pPage)->s.fFTDirtyY )
1039
1040
1041	/** @name PT usage values (PGMPAGE::u2PDEType).
1042	*
1043	* @{ */
1044	/** Either as a PT or PDE. */
1045	#define PGM_PAGE_PDE_TYPE_DONTCARE 0
1046	/** Must use a page table to map the range. */
1047	#define PGM_PAGE_PDE_TYPE_PT 1
1048	/** Can use a page directory entry to map the continuous range. */
1049	#define PGM_PAGE_PDE_TYPE_PDE 2
1050	/** Can use a page directory entry to map the continuous range - temporarily disabled (by page monitoring). */
1051	#define PGM_PAGE_PDE_TYPE_PDE_DISABLED 3
1052	/** @} */
1053
1054	/**
1055	* Set the PDE type of the page
1056	* @param a_pVM The VM handle, only used for lock ownership assertions.
1057	* @param a_pPage Pointer to the physical guest page tracking structure.
1058	* @param a_uType PGM_PAGE_PDE_TYPE_*.
1059	*/
1060	#define PGM_PAGE_SET_PDE_TYPE(a_pVM, a_pPage, a_uType) \
1061	do { (a_pPage)->s.u2PDETypeY = (a_uType); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
1062
1063	/**
1064	* Checks if the page was marked being part of a large page
1065	* @returns true/false.
1066	* @param a_pPage Pointer to the physical guest page tracking structure.
1067	*/
1068	#define PGM_PAGE_GET_PDE_TYPE(a_pPage) ( (a_pPage)->s.u2PDETypeY )
1069
1070	/** Enabled optimized access handler tests.
1071	* These optimizations makes ASSUMPTIONS about the state values and the s1
1072	* layout. When enabled, the compiler should normally generate more compact
1073	* code.
1074	*/
1075	#define PGM_PAGE_WITH_OPTIMIZED_HANDLER_ACCESS 1
1076
1077	/** @name Physical Access Handler State values (PGMPAGE::u2HandlerPhysStateY).
1078	*
1079	* @remarks The values are assigned in order of priority, so we can calculate
1080	* the correct state for a page with different handlers installed.
1081	* @{ */
1082	/** No handler installed. */
1083	#define PGM_PAGE_HNDL_PHYS_STATE_NONE 0
1084	/** Monitoring is temporarily disabled. */
1085	#define PGM_PAGE_HNDL_PHYS_STATE_DISABLED 1
1086	/** Write access is monitored. */
1087	#define PGM_PAGE_HNDL_PHYS_STATE_WRITE 2
1088	/** All access is monitored. */
1089	#define PGM_PAGE_HNDL_PHYS_STATE_ALL 3
1090	/** @} */
1091
1092	/**
1093	* Gets the physical access handler state of a page.
1094	* @returns PGM_PAGE_HNDL_PHYS_STATE_* value.
1095	* @param a_pPage Pointer to the physical guest page tracking structure.
1096	*/
1097	#define PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) ( (a_pPage)->s.u2HandlerPhysStateY )
1098
1099	/**
1100	* Sets the physical access handler state of a page.
1101	* @param a_pPage Pointer to the physical guest page tracking structure.
1102	* @param a_uState The new state value.
1103	*/
1104	#define PGM_PAGE_SET_HNDL_PHYS_STATE(a_pPage, a_uState) \
1105	do { (a_pPage)->s.u2HandlerPhysStateY = (a_uState); } while (0)
1106
1107	/**
1108	* Checks if the page has any physical access handlers, including temporarily disabled ones.
1109	* @returns true/false
1110	* @param a_pPage Pointer to the physical guest page tracking structure.
1111	*/
1112	#define PGM_PAGE_HAS_ANY_PHYSICAL_HANDLERS(a_pPage) \
1113	( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) != PGM_PAGE_HNDL_PHYS_STATE_NONE )
1114
1115	/**
1116	* Checks if the page has any active physical access handlers.
1117	* @returns true/false
1118	* @param a_pPage Pointer to the physical guest page tracking structure.
1119	*/
1120	#define PGM_PAGE_HAS_ACTIVE_PHYSICAL_HANDLERS(a_pPage) \
1121	( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) >= PGM_PAGE_HNDL_PHYS_STATE_WRITE )
1122
1123
1124	/** @name Virtual Access Handler State values (PGMPAGE::u2HandlerVirtStateY).
1125	*
1126	* @remarks The values are assigned in order of priority, so we can calculate
1127	* the correct state for a page with different handlers installed.
1128	* @{ */
1129	/** No handler installed. */
1130	#define PGM_PAGE_HNDL_VIRT_STATE_NONE 0
1131	/* 1 is reserved so the lineup is identical with the physical ones. */
1132	/** Write access is monitored. */
1133	#define PGM_PAGE_HNDL_VIRT_STATE_WRITE 2
1134	/** All access is monitored. */
1135	#define PGM_PAGE_HNDL_VIRT_STATE_ALL 3
1136	/** @} */
1137
1138	/**
1139	* Gets the virtual access handler state of a page.
1140	* @returns PGM_PAGE_HNDL_VIRT_STATE_* value.
1141	* @param a_pPage Pointer to the physical guest page tracking structure.
1142	*/
1143	#define PGM_PAGE_GET_HNDL_VIRT_STATE(a_pPage) ( (a_pPage)->s.u2HandlerVirtStateY )
1144
1145	/**
1146	* Sets the virtual access handler state of a page.
1147	* @param a_pPage Pointer to the physical guest page tracking structure.
1148	* @param a_uState The new state value.
1149	*/
1150	#define PGM_PAGE_SET_HNDL_VIRT_STATE(a_pPage, a_uState) \
1151	do { (a_pPage)->s.u2HandlerVirtStateY = (a_uState); } while (0)
1152
1153	/**
1154	* Checks if the page has any virtual access handlers.
1155	* @returns true/false
1156	* @param a_pPage Pointer to the physical guest page tracking structure.
1157	*/
1158	#define PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS(a_pPage) \
1159	( PGM_PAGE_GET_HNDL_VIRT_STATE(a_pPage) != PGM_PAGE_HNDL_VIRT_STATE_NONE )
1160
1161	/**
1162	* Same as PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS - can't disable pages in
1163	* virtual handlers.
1164	* @returns true/false
1165	* @param a_pPage Pointer to the physical guest page tracking structure.
1166	*/
1167	#define PGM_PAGE_HAS_ACTIVE_VIRTUAL_HANDLERS(a_pPage) \
1168	PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS(a_pPage)
1169
1170
1171	/**
1172	* Checks if the page has any access handlers, including temporarily disabled ones.
1173	* @returns true/false
1174	* @param a_pPage Pointer to the physical guest page tracking structure.
1175	*/
1176	#ifdef PGM_PAGE_WITH_OPTIMIZED_HANDLER_ACCESS
1177	# define PGM_PAGE_HAS_ANY_HANDLERS(a_pPage) \
1178	( ((a_pPage)->au32[0] & UINT16_C(0x0303)) != 0 )
1179	#else
1180	# define PGM_PAGE_HAS_ANY_HANDLERS(a_pPage) \
1181	( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) != PGM_PAGE_HNDL_PHYS_STATE_NONE \
1182	\|\| PGM_PAGE_GET_HNDL_VIRT_STATE(a_pPage) != PGM_PAGE_HNDL_VIRT_STATE_NONE )
1183	#endif
1184
1185	/**
1186	* Checks if the page has any active access handlers.
1187	* @returns true/false
1188	* @param a_pPage Pointer to the physical guest page tracking structure.
1189	*/
1190	#ifdef PGM_PAGE_WITH_OPTIMIZED_HANDLER_ACCESS
1191	# define PGM_PAGE_HAS_ACTIVE_HANDLERS(a_pPage) \
1192	( ((a_pPage)->au32[0] & UINT16_C(0x0202)) != 0 )
1193	#else
1194	# define PGM_PAGE_HAS_ACTIVE_HANDLERS(a_pPage) \
1195	( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) >= PGM_PAGE_HNDL_PHYS_STATE_WRITE \
1196	\|\| PGM_PAGE_GET_HNDL_VIRT_STATE(a_pPage) >= PGM_PAGE_HNDL_VIRT_STATE_WRITE )
1197	#endif
1198
1199	/**
1200	* Checks if the page has any active access handlers catching all accesses.
1201	* @returns true/false
1202	* @param a_pPage Pointer to the physical guest page tracking structure.
1203	*/
1204	#ifdef PGM_PAGE_WITH_OPTIMIZED_HANDLER_ACCESS
1205	# define PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(a_pPage) \
1206	( ( ((a_pPage)->au8[0] \| (a_pPage)->au8[1]) & UINT8_C(0x3) ) \
1207	== PGM_PAGE_HNDL_PHYS_STATE_ALL )
1208	#else
1209	# define PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(a_pPage) \
1210	( PGM_PAGE_GET_HNDL_PHYS_STATE(a_pPage) == PGM_PAGE_HNDL_PHYS_STATE_ALL \
1211	\|\| PGM_PAGE_GET_HNDL_VIRT_STATE(a_pPage) == PGM_PAGE_HNDL_VIRT_STATE_ALL )
1212	#endif
1213
1214
1215	/** @def PGM_PAGE_GET_TRACKING
1216	* Gets the packed shadow page pool tracking data associated with a guest page.
1217	* @returns uint16_t containing the data.
1218	* @param a_pPage Pointer to the physical guest page tracking structure.
1219	*/
1220	#define PGM_PAGE_GET_TRACKING_NA(a_pPage) ( (a_pPage)->s.u16TrackingY )
1221	#if defined(__GNUC__) && defined(VBOX_STRICT)
1222	# define PGM_PAGE_GET_TRACKING(a_pPage) __extension__ ({ PGM_PAGE_ASSERT_LOCK(pVM); PGM_PAGE_GET_TRACKING_NA(a_pPage); })
1223	#else
1224	# define PGM_PAGE_GET_TRACKING PGM_PAGE_GET_TRACKING_NA
1225	#endif
1226
1227	/** @def PGM_PAGE_SET_TRACKING
1228	* Sets the packed shadow page pool tracking data associated with a guest page.
1229	* @param a_pVM The VM handle, only used for lock ownership assertions.
1230	* @param a_pPage Pointer to the physical guest page tracking structure.
1231	* @param a_u16TrackingData The tracking data to store.
1232	*/
1233	#define PGM_PAGE_SET_TRACKING(a_pVM, a_pPage, a_u16TrackingData) \
1234	do { (a_pPage)->s.u16TrackingY = (a_u16TrackingData); PGM_PAGE_ASSERT_LOCK(a_pVM); } while (0)
1235
1236	/** @def PGM_PAGE_GET_TD_CREFS
1237	* Gets the @a cRefs tracking data member.
1238	* @returns cRefs.
1239	* @param a_pPage Pointer to the physical guest page tracking structure.
1240	*/
1241	#define PGM_PAGE_GET_TD_CREFS(a_pPage) \
1242	((PGM_PAGE_GET_TRACKING(a_pPage) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK)
1243	#define PGM_PAGE_GET_TD_CREFS_NA(a_pPage) \
1244	((PGM_PAGE_GET_TRACKING_NA(a_pPage) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK)
1245
1246	/** @def PGM_PAGE_GET_TD_IDX
1247	* Gets the @a idx tracking data member.
1248	* @returns idx.
1249	* @param a_pPage Pointer to the physical guest page tracking structure.
1250	*/
1251	#define PGM_PAGE_GET_TD_IDX(a_pPage) \
1252	((PGM_PAGE_GET_TRACKING(a_pPage) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK)
1253	#define PGM_PAGE_GET_TD_IDX_NA(a_pPage) \
1254	((PGM_PAGE_GET_TRACKING_NA(a_pPage) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK)
1255
1256
1257	/** Max number of locks on a page. */
1258	#define PGM_PAGE_MAX_LOCKS UINT8_C(254)
1259
1260	/** Get the read lock count.
1261	* @returns count.
1262	* @param a_pPage Pointer to the physical guest page tracking structure.
1263	*/
1264	#define PGM_PAGE_GET_READ_LOCKS(a_pPage) ( (a_pPage)->s.cReadLocksY )
1265
1266	/** Get the write lock count.
1267	* @returns count.
1268	* @param a_pPage Pointer to the physical guest page tracking structure.
1269	*/
1270	#define PGM_PAGE_GET_WRITE_LOCKS(a_pPage) ( (a_pPage)->s.cWriteLocksY )
1271
1272	/** Decrement the read lock counter.
1273	* @param a_pPage Pointer to the physical guest page tracking structure.
1274	*/
1275	#define PGM_PAGE_DEC_READ_LOCKS(a_pPage) do { --(a_pPage)->s.cReadLocksY; } while (0)
1276
1277	/** Decrement the write lock counter.
1278	* @param a_pPage Pointer to the physical guest page tracking structure.
1279	*/
1280	#define PGM_PAGE_DEC_WRITE_LOCKS(a_pPage) do { --(a_pPage)->s.cWriteLocksY; } while (0)
1281
1282	/** Increment the read lock counter.
1283	* @param a_pPage Pointer to the physical guest page tracking structure.
1284	*/
1285	#define PGM_PAGE_INC_READ_LOCKS(a_pPage) do { ++(a_pPage)->s.cReadLocksY; } while (0)
1286
1287	/** Increment the write lock counter.
1288	* @param a_pPage Pointer to the physical guest page tracking structure.
1289	*/
1290	#define PGM_PAGE_INC_WRITE_LOCKS(a_pPage) do { ++(a_pPage)->s.cWriteLocksY; } while (0)
1291
1292
1293	#if 0
1294	/** Enables sanity checking of write monitoring using CRC-32. */
1295	# define PGMLIVESAVERAMPAGE_WITH_CRC32
1296	#endif
1297
1298	/**
1299	* Per page live save tracking data.
1300	*/
1301	typedef struct PGMLIVESAVERAMPAGE
1302	{
1303	/** Number of times it has been dirtied. */
1304	uint32_t cDirtied : 24;
1305	/** Whether it is currently dirty. */
1306	uint32_t fDirty : 1;
1307	/** Ignore the page.
1308	* This is used for pages that has been MMIO, MMIO2 or ROM pages once. We will
1309	* deal with these after pausing the VM and DevPCI have said it bit about
1310	* remappings. */
1311	uint32_t fIgnore : 1;
1312	/** Was a ZERO page last time around. */
1313	uint32_t fZero : 1;
1314	/** Was a SHARED page last time around. */
1315	uint32_t fShared : 1;
1316	/** Whether the page is/was write monitored in a previous pass. */
1317	uint32_t fWriteMonitored : 1;
1318	/** Whether the page is/was write monitored earlier in this pass. */
1319	uint32_t fWriteMonitoredJustNow : 1;
1320	/** Bits reserved for future use. */
1321	uint32_t u2Reserved : 2;
1322	#ifdef PGMLIVESAVERAMPAGE_WITH_CRC32
1323	/** CRC-32 for the page. This is for internal consistency checks. */
1324	uint32_t u32Crc;
1325	#endif
1326	} PGMLIVESAVERAMPAGE;
1327	#ifdef PGMLIVESAVERAMPAGE_WITH_CRC32
1328	AssertCompileSize(PGMLIVESAVERAMPAGE, 8);
1329	#else
1330	AssertCompileSize(PGMLIVESAVERAMPAGE, 4);
1331	#endif
1332	/** Pointer to the per page live save tracking data. */
1333	typedef PGMLIVESAVERAMPAGE *PPGMLIVESAVERAMPAGE;
1334
1335	/** The max value of PGMLIVESAVERAMPAGE::cDirtied. */
1336	#define PGMLIVSAVEPAGE_MAX_DIRTIED 0x00fffff0
1337
1338
1339	/**
1340	* RAM range for GC Phys to HC Phys conversion.
1341	*
1342	* Can be used for HC Virt to GC Phys and HC Virt to HC Phys
1343	* conversions too, but we'll let MM handle that for now.
1344	*
1345	* This structure is used by linked lists in both GC and HC.
1346	*/
1347	typedef struct PGMRAMRANGE
1348	{
1349	/** Start of the range. Page aligned. */
1350	RTGCPHYS GCPhys;
1351	/** Size of the range. (Page aligned of course). */
1352	RTGCPHYS cb;
1353	/** Pointer to the next RAM range - for R3. */
1354	R3PTRTYPE(struct PGMRAMRANGE *) pNextR3;
1355	/** Pointer to the next RAM range - for R0. */
1356	R0PTRTYPE(struct PGMRAMRANGE *) pNextR0;
1357	/** Pointer to the next RAM range - for RC. */
1358	RCPTRTYPE(struct PGMRAMRANGE *) pNextRC;
1359	/** PGM_RAM_RANGE_FLAGS_* flags. */
1360	uint32_t fFlags;
1361	/** Last address in the range (inclusive). Page aligned (-1). */
1362	RTGCPHYS GCPhysLast;
1363	/** Start of the HC mapping of the range. This is only used for MMIO2. */
1364	R3PTRTYPE(void *) pvR3;
1365	/** Live save per page tracking data. */
1366	R3PTRTYPE(PPGMLIVESAVERAMPAGE) paLSPages;
1367	/** The range description. */
1368	R3PTRTYPE(const char *) pszDesc;
1369	/** Pointer to self - R0 pointer. */
1370	R0PTRTYPE(struct PGMRAMRANGE *) pSelfR0;
1371	/** Pointer to self - RC pointer. */
1372	RCPTRTYPE(struct PGMRAMRANGE *) pSelfRC;
1373
1374	/** Alignment padding. */
1375	RTRCPTR Alignment0;
1376	/** Pointer to the left search three node - ring-3 context. */
1377	R3PTRTYPE(struct PGMRAMRANGE *) pLeftR3;
1378	/** Pointer to the right search three node - ring-3 context. */
1379	R3PTRTYPE(struct PGMRAMRANGE *) pRightR3;
1380	/** Pointer to the left search three node - ring-0 context. */
1381	R0PTRTYPE(struct PGMRAMRANGE *) pLeftR0;
1382	/** Pointer to the right search three node - ring-0 context. */
1383	R0PTRTYPE(struct PGMRAMRANGE *) pRightR0;
1384	/** Pointer to the left search three node - raw-mode context. */
1385	RCPTRTYPE(struct PGMRAMRANGE *) pLeftRC;
1386	/** Pointer to the right search three node - raw-mode context. */
1387	RCPTRTYPE(struct PGMRAMRANGE *) pRightRC;
1388
1389	/** Padding to make aPage aligned on sizeof(PGMPAGE). */
1390	#if HC_ARCH_BITS == 32
1391	uint32_t au32Alignment2[HC_ARCH_BITS == 32 ? 2 : 0];
1392	#endif
1393	/** Array of physical guest page tracking structures. */
1394	PGMPAGE aPages[1];
1395	} PGMRAMRANGE;
1396	/** Pointer to RAM range for GC Phys to HC Phys conversion. */
1397	typedef PGMRAMRANGE *PPGMRAMRANGE;
1398
1399	/** @name PGMRAMRANGE::fFlags
1400	* @{ */
1401	/** The RAM range is floating around as an independent guest mapping. */
1402	#define PGM_RAM_RANGE_FLAGS_FLOATING RT_BIT(20)
1403	/** Ad hoc RAM range for an ROM mapping. */
1404	#define PGM_RAM_RANGE_FLAGS_AD_HOC_ROM RT_BIT(21)
1405	/** Ad hoc RAM range for an MMIO mapping. */
1406	#define PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO RT_BIT(22)
1407	/** Ad hoc RAM range for an MMIO2 mapping. */
1408	#define PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO2 RT_BIT(23)
1409	/** @} */
1410
1411	/** Tests if a RAM range is an ad hoc one or not.
1412	* @returns true/false.
1413	* @param pRam The RAM range.
1414	*/
1415	#define PGM_RAM_RANGE_IS_AD_HOC(pRam) \
1416	(!!( (pRam)->fFlags & (PGM_RAM_RANGE_FLAGS_AD_HOC_ROM \| PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO \| PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO2) ) )
1417
1418	/** The number of entries in the RAM range TLBs (there is one for each
1419	* context). Must be a power of two. */
1420	#define PGM_RAMRANGE_TLB_ENTRIES 8
1421
1422	/**
1423	* Calculates the RAM range TLB index for the physical address.
1424	*
1425	* @returns RAM range TLB index.
1426	* @param GCPhys The guest physical address.
1427	*/
1428	#define PGM_RAMRANGE_TLB_IDX(a_GCPhys) ( ((a_GCPhys) >> 20) & (PGM_RAMRANGE_TLB_ENTRIES - 1) )
1429
1430
1431
1432	/**
1433	* Per page tracking structure for ROM image.
1434	*
1435	* A ROM image may have a shadow page, in which case we may have two pages
1436	* backing it. This structure contains the PGMPAGE for both while
1437	* PGMRAMRANGE have a copy of the active one. It is important that these
1438	* aren't out of sync in any regard other than page pool tracking data.
1439	*/
1440	typedef struct PGMROMPAGE
1441	{
1442	/** The page structure for the virgin ROM page. */
1443	PGMPAGE Virgin;
1444	/** The page structure for the shadow RAM page. */
1445	PGMPAGE Shadow;
1446	/** The current protection setting. */
1447	PGMROMPROT enmProt;
1448	/** Live save status information. Makes use of unused alignment space. */
1449	struct
1450	{
1451	/** The previous protection value. */
1452	uint8_t u8Prot;
1453	/** Written to flag set by the handler. */
1454	bool fWrittenTo;
1455	/** Whether the shadow page is dirty or not. */
1456	bool fDirty;
1457	/** Whether it was dirtied in the recently. */
1458	bool fDirtiedRecently;
1459	} LiveSave;
1460	} PGMROMPAGE;
1461	AssertCompileSizeAlignment(PGMROMPAGE, 8);
1462	/** Pointer to a ROM page tracking structure. */
1463	typedef PGMROMPAGE *PPGMROMPAGE;
1464
1465
1466	/**
1467	* A registered ROM image.
1468	*
1469	* This is needed to keep track of ROM image since they generally intrude
1470	* into a PGMRAMRANGE. It also keeps track of additional info like the
1471	* two page sets (read-only virgin and read-write shadow), the current
1472	* state of each page.
1473	*
1474	* Because access handlers cannot easily be executed in a different
1475	* context, the ROM ranges needs to be accessible and in all contexts.
1476	*/
1477	typedef struct PGMROMRANGE
1478	{
1479	/** Pointer to the next range - R3. */
1480	R3PTRTYPE(struct PGMROMRANGE *) pNextR3;
1481	/** Pointer to the next range - R0. */
1482	R0PTRTYPE(struct PGMROMRANGE *) pNextR0;
1483	/** Pointer to the next range - RC. */
1484	RCPTRTYPE(struct PGMROMRANGE *) pNextRC;
1485	/** Pointer alignment */
1486	RTRCPTR RCPtrAlignment;
1487	/** Address of the range. */
1488	RTGCPHYS GCPhys;
1489	/** Address of the last byte in the range. */
1490	RTGCPHYS GCPhysLast;
1491	/** Size of the range. */
1492	RTGCPHYS cb;
1493	/** The flags (PGMPHYS_ROM_FLAGS_). /
1494	uint32_t fFlags;
1495	/** The saved state range ID. */
1496	uint8_t idSavedState;
1497	/** Alignment padding. */
1498	uint8_t au8Alignment[3];
1499	/** Alignment padding ensuring that aPages is sizeof(PGMROMPAGE) aligned. */
1500	uint32_t au32Alignemnt[HC_ARCH_BITS == 32 ? 5 : 1];
1501	/** The size bits pvOriginal points to. */
1502	uint32_t cbOriginal;
1503	/** Pointer to the original bits when PGMPHYS_ROM_FLAGS_PERMANENT_BINARY was specified.
1504	* This is used for strictness checks. */
1505	R3PTRTYPE(const void *) pvOriginal;
1506	/** The ROM description. */
1507	R3PTRTYPE(const char *) pszDesc;
1508	/** The per page tracking structures. */
1509	PGMROMPAGE aPages[1];
1510	} PGMROMRANGE;
1511	/** Pointer to a ROM range. */
1512	typedef PGMROMRANGE *PPGMROMRANGE;
1513
1514
1515	/**
1516	* Live save per page data for an MMIO2 page.
1517	*
1518	* Not using PGMLIVESAVERAMPAGE here because we cannot use normal write monitoring
1519	* of MMIO2 pages. The current approach is using some optimistic SHA-1 +
1520	* CRC-32 for detecting changes as well as special handling of zero pages. This
1521	* is a TEMPORARY measure which isn't perfect, but hopefully it is good enough
1522	* for speeding things up. (We're using SHA-1 and not SHA-256 or SHA-512
1523	* because of speed (2.5x and 6x slower).)
1524	*
1525	* @todo Implement dirty MMIO2 page reporting that can be enabled during live
1526	* save but normally is disabled. Since we can write monitor guest
1527	* accesses on our own, we only need this for host accesses. Shouldn't be
1528	* too difficult for DevVGA, VMMDev might be doable, the planned
1529	* networking fun will be fun since it involves ring-0.
1530	*/
1531	typedef struct PGMLIVESAVEMMIO2PAGE
1532	{
1533	/** Set if the page is considered dirty. */
1534	bool fDirty;
1535	/** The number of scans this page has remained unchanged for.
1536	* Only updated for dirty pages. */
1537	uint8_t cUnchangedScans;
1538	/** Whether this page was zero at the last scan. */
1539	bool fZero;
1540	/** Alignment padding. */
1541	bool fReserved;
1542	/** CRC-32 for the first half of the page.
1543	* This is used together with u32CrcH2 to quickly detect changes in the page
1544	* during the non-final passes. */
1545	uint32_t u32CrcH1;
1546	/** CRC-32 for the second half of the page. */
1547	uint32_t u32CrcH2;
1548	/** SHA-1 for the saved page.
1549	* This is used in the final pass to skip pages without changes. */
1550	uint8_t abSha1Saved[RTSHA1_HASH_SIZE];
1551	} PGMLIVESAVEMMIO2PAGE;
1552	/** Pointer to a live save status data for an MMIO2 page. */
1553	typedef PGMLIVESAVEMMIO2PAGE *PPGMLIVESAVEMMIO2PAGE;
1554
1555	/**
1556	* A registered MMIO2 (= Device RAM) range.
1557	*
1558	* There are a few reason why we need to keep track of these
1559	* registrations. One of them is the deregistration & cleanup stuff,
1560	* while another is that the PGMRAMRANGE associated with such a region may
1561	* have to be removed from the ram range list.
1562	*
1563	* Overlapping with a RAM range has to be 100% or none at all. The pages
1564	* in the existing RAM range must not be ROM nor MMIO. A guru meditation
1565	* will be raised if a partial overlap or an overlap of ROM pages is
1566	* encountered. On an overlap we will free all the existing RAM pages and
1567	* put in the ram range pages instead.
1568	*/
1569	typedef struct PGMMMIO2RANGE
1570	{
1571	/** The owner of the range. (a device) */
1572	PPDMDEVINSR3 pDevInsR3;
1573	/** Pointer to the ring-3 mapping of the allocation. */
1574	RTR3PTR pvR3;
1575	/** Pointer to the next range - R3. */
1576	R3PTRTYPE(struct PGMMMIO2RANGE *) pNextR3;
1577	/** Whether it's mapped or not. */
1578	bool fMapped;
1579	/** Whether it's overlapping or not. */
1580	bool fOverlapping;
1581	/** The PCI region number.
1582	* @remarks This ASSUMES that nobody will ever really need to have multiple
1583	* PCI devices with matching MMIO region numbers on a single device. */
1584	uint8_t iRegion;
1585	/** The saved state range ID. */
1586	uint8_t idSavedState;
1587	/** Alignment padding for putting the ram range on a PGMPAGE alignment boundary. */
1588	uint8_t abAlignment[HC_ARCH_BITS == 32 ? 12 : 12];
1589	/** Live save per page tracking data. */
1590	R3PTRTYPE(PPGMLIVESAVEMMIO2PAGE) paLSPages;
1591	/** The associated RAM range. */
1592	PGMRAMRANGE RamRange;
1593	} PGMMMIO2RANGE;
1594	/** Pointer to a MMIO2 range. */
1595	typedef PGMMMIO2RANGE *PPGMMMIO2RANGE;
1596
1597
1598
1599
1600	/**
1601	* PGMPhysRead/Write cache entry
1602	*/
1603	typedef struct PGMPHYSCACHEENTRY
1604	{
1605	/** R3 pointer to physical page. */
1606	R3PTRTYPE(uint8_t *) pbR3;
1607	/** GC Physical address for cache entry */
1608	RTGCPHYS GCPhys;
1609	#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
1610	RTGCPHYS u32Padding0; /*< alignment padding. /
1611	#endif
1612	} PGMPHYSCACHEENTRY;
1613
1614	/**
1615	* PGMPhysRead/Write cache to reduce REM memory access overhead
1616	*/
1617	typedef struct PGMPHYSCACHE
1618	{
1619	/** Bitmap of valid cache entries */
1620	uint64_t aEntries;
1621	/** Cache entries */
1622	PGMPHYSCACHEENTRY Entry[PGM_MAX_PHYSCACHE_ENTRIES];
1623	} PGMPHYSCACHE;
1624
1625
1626	/** Pointer to an allocation chunk ring-3 mapping. */
1627	typedef struct PGMCHUNKR3MAP *PPGMCHUNKR3MAP;
1628	/** Pointer to an allocation chunk ring-3 mapping pointer. */
1629	typedef PPGMCHUNKR3MAP *PPPGMCHUNKR3MAP;
1630
1631	/**
1632	* Ring-3 tracking structore for an allocation chunk ring-3 mapping.
1633	*
1634	* The primary tree (Core) uses the chunk id as key.
1635	*/
1636	typedef struct PGMCHUNKR3MAP
1637	{
1638	/** The key is the chunk id. */
1639	AVLU32NODECORE Core;
1640	/** The time (ChunkR3Map.iNow) this chunk was last used. Used for unmap
1641	* selection. */
1642	uint32_t iLastUsed;
1643	/** The current reference count. */
1644	uint32_t volatile cRefs;
1645	/** The current permanent reference count. */
1646	uint32_t volatile cPermRefs;
1647	/** The mapping address. */
1648	void *pv;
1649	} PGMCHUNKR3MAP;
1650
1651	/**
1652	* Allocation chunk ring-3 mapping TLB entry.
1653	*/
1654	typedef struct PGMCHUNKR3MAPTLBE
1655	{
1656	/** The chunk id. */
1657	uint32_t volatile idChunk;
1658	#if HC_ARCH_BITS == 64
1659	uint32_t u32Padding; /*< alignment padding. /
1660	#endif
1661	/** The chunk map. */
1662	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1663	R3PTRTYPE(PPGMCHUNKR3MAP) volatile pChunk;
1664	#else
1665	R3R0PTRTYPE(PPGMCHUNKR3MAP) volatile pChunk;
1666	#endif
1667	} PGMCHUNKR3MAPTLBE;
1668	/** Pointer to the an allocation chunk ring-3 mapping TLB entry. */
1669	typedef PGMCHUNKR3MAPTLBE *PPGMCHUNKR3MAPTLBE;
1670
1671	/** The number of TLB entries in PGMCHUNKR3MAPTLB.
1672	* @remark Must be a power of two value. */
1673	#define PGM_CHUNKR3MAPTLB_ENTRIES 64
1674
1675	/**
1676	* Allocation chunk ring-3 mapping TLB.
1677	*
1678	* @remarks We use a TLB to speed up lookups by avoiding walking the AVL.
1679	* At first glance this might look kinda odd since AVL trees are
1680	* supposed to give the most optimal lookup times of all trees
1681	* due to their balancing. However, take a tree with 1023 nodes
1682	* in it, that's 10 levels, meaning that most searches has to go
1683	* down 9 levels before they find what they want. This isn't fast
1684	* compared to a TLB hit. There is the factor of cache misses,
1685	* and of course the problem with trees and branch prediction.
1686	* This is why we use TLBs in front of most of the trees.
1687	*
1688	* @todo Generalize this TLB + AVL stuff, shouldn't be all that
1689	* difficult when we switch to the new inlined AVL trees (from kStuff).
1690	*/
1691	typedef struct PGMCHUNKR3MAPTLB
1692	{
1693	/** The TLB entries. */
1694	PGMCHUNKR3MAPTLBE aEntries[PGM_CHUNKR3MAPTLB_ENTRIES];
1695	} PGMCHUNKR3MAPTLB;
1696
1697	/**
1698	* Calculates the index of a guest page in the Ring-3 Chunk TLB.
1699	* @returns Chunk TLB index.
1700	* @param idChunk The Chunk ID.
1701	*/
1702	#define PGM_CHUNKR3MAPTLB_IDX(idChunk) ( (idChunk) & (PGM_CHUNKR3MAPTLB_ENTRIES - 1) )
1703
1704
1705	/**
1706	* Ring-3 guest page mapping TLB entry.
1707	* @remarks used in ring-0 as well at the moment.
1708	*/
1709	typedef struct PGMPAGER3MAPTLBE
1710	{
1711	/** Address of the page. */
1712	RTGCPHYS volatile GCPhys;
1713	/** The guest page. */
1714	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1715	R3PTRTYPE(PPGMPAGE) volatile pPage;
1716	#else
1717	R3R0PTRTYPE(PPGMPAGE) volatile pPage;
1718	#endif
1719	/** Pointer to the page mapping tracking structure, PGMCHUNKR3MAP. */
1720	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1721	R3PTRTYPE(PPGMCHUNKR3MAP) volatile pMap;
1722	#else
1723	R3R0PTRTYPE(PPGMCHUNKR3MAP) volatile pMap;
1724	#endif
1725	/** The address */
1726	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1727	R3PTRTYPE(void *) volatile pv;
1728	#else
1729	R3R0PTRTYPE(void *) volatile pv;
1730	#endif
1731	#if HC_ARCH_BITS == 32
1732	uint32_t u32Padding; /*< alignment padding. /
1733	#endif
1734	} PGMPAGER3MAPTLBE;
1735	/** Pointer to an entry in the HC physical TLB. */
1736	typedef PGMPAGER3MAPTLBE *PPGMPAGER3MAPTLBE;
1737
1738
1739	/** The number of entries in the ring-3 guest page mapping TLB.
1740	* @remarks The value must be a power of two. */
1741	#define PGM_PAGER3MAPTLB_ENTRIES 256
1742
1743	/**
1744	* Ring-3 guest page mapping TLB.
1745	* @remarks used in ring-0 as well at the moment.
1746	*/
1747	typedef struct PGMPAGER3MAPTLB
1748	{
1749	/** The TLB entries. */
1750	PGMPAGER3MAPTLBE aEntries[PGM_PAGER3MAPTLB_ENTRIES];
1751	} PGMPAGER3MAPTLB;
1752	/** Pointer to the ring-3 guest page mapping TLB. */
1753	typedef PGMPAGER3MAPTLB *PPGMPAGER3MAPTLB;
1754
1755	/**
1756	* Calculates the index of the TLB entry for the specified guest page.
1757	* @returns Physical TLB index.
1758	* @param GCPhys The guest physical address.
1759	*/
1760	#define PGM_PAGER3MAPTLB_IDX(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGM_PAGER3MAPTLB_ENTRIES - 1) )
1761
1762
1763	/**
1764	* Raw-mode context dynamic mapping cache entry.
1765	*
1766	* Because of raw-mode context being reloctable and all relocations are applied
1767	* in ring-3, this has to be defined here and be RC specific.
1768	*
1769	* @sa PGMRZDYNMAPENTRY, PGMR0DYNMAPENTRY.
1770	*/
1771	typedef struct PGMRCDYNMAPENTRY
1772	{
1773	/** The physical address of the currently mapped page.
1774	* This is duplicate for three reasons: cache locality, cache policy of the PT
1775	* mappings and sanity checks. */
1776	RTHCPHYS HCPhys;
1777	/** Pointer to the page. */
1778	RTRCPTR pvPage;
1779	/** The number of references. */
1780	int32_t volatile cRefs;
1781	/** PTE pointer union. */
1782	struct PGMRCDYNMAPENTRY_PPTE
1783	{
1784	/** PTE pointer, 32-bit legacy version. */
1785	RCPTRTYPE(PX86PTE) pLegacy;
1786	/** PTE pointer, PAE version. */
1787	RCPTRTYPE(PX86PTEPAE) pPae;
1788	} uPte;
1789	} PGMRCDYNMAPENTRY;
1790	/** Pointer to a dynamic mapping cache entry for the raw-mode context. */
1791	typedef PGMRCDYNMAPENTRY *PPGMRCDYNMAPENTRY;
1792
1793
1794	/**
1795	* Dynamic mapping cache for the raw-mode context.
1796	*
1797	* This is initialized during VMMRC init based upon the pbDynPageMapBaseGC and
1798	* paDynPageMap* PGM members. However, it has to be defined in PGMInternal.h
1799	* so that we can perform relocations from PGMR3Relocate. This has the
1800	* consequence that we must have separate ring-0 and raw-mode context versions
1801	* of this struct even if they share the basic elements.
1802	*
1803	* @sa PPGMRZDYNMAP, PGMR0DYNMAP.
1804	*/
1805	typedef struct PGMRCDYNMAP
1806	{
1807	/** The usual magic number / eye catcher (PGMRZDYNMAP_MAGIC). */
1808	uint32_t u32Magic;
1809	/** Array for tracking and managing the pages. */
1810	RCPTRTYPE(PPGMRCDYNMAPENTRY) paPages;
1811	/** The cache size given as a number of pages. */
1812	uint32_t cPages;
1813	/** The current load.
1814	* This does not include guard pages. */
1815	uint32_t cLoad;
1816	/** The max load ever.
1817	* This is maintained to get trigger adding of more mapping space. */
1818	uint32_t cMaxLoad;
1819	/** The number of guard pages. */
1820	uint32_t cGuardPages;
1821	/** The number of users (protected by hInitLock). */
1822	uint32_t cUsers;
1823	} PGMRCDYNMAP;
1824	/** Pointer to the dynamic cache for the raw-mode context. */
1825	typedef PGMRCDYNMAP *PPGMRCDYNMAP;
1826
1827
1828	/**
1829	* Mapping cache usage set entry.
1830	*
1831	* @remarks 16-bit ints was chosen as the set is not expected to be used beyond
1832	* the dynamic ring-0 and (to some extent) raw-mode context mapping
1833	* cache. If it's extended to include ring-3, well, then something
1834	* will have be changed here...
1835	*/
1836	typedef struct PGMMAPSETENTRY
1837	{
1838	/** Pointer to the page. */
1839	#ifndef IN_RC
1840	RTR0PTR pvPage;
1841	#else
1842	RTRCPTR pvPage;
1843	# if HC_ARCH_BITS == 64
1844	uint32_t u32Alignment2;
1845	# endif
1846	#endif
1847	/** The mapping cache index. */
1848	uint16_t iPage;
1849	/** The number of references.
1850	* The max is UINT16_MAX - 1. */
1851	uint16_t cRefs;
1852	/** The number inlined references.
1853	* The max is UINT16_MAX - 1. */
1854	uint16_t cInlinedRefs;
1855	/** Unreferences. */
1856	uint16_t cUnrefs;
1857
1858	#if HC_ARCH_BITS == 32
1859	uint32_t u32Alignment1;
1860	#endif
1861	/** The physical address for this entry. */
1862	RTHCPHYS HCPhys;
1863	} PGMMAPSETENTRY;
1864	AssertCompileMemberOffset(PGMMAPSETENTRY, iPage, RT_MAX(sizeof(RTR0PTR), sizeof(RTRCPTR)));
1865	AssertCompileMemberAlignment(PGMMAPSETENTRY, HCPhys, sizeof(RTHCPHYS));
1866	/** Pointer to a mapping cache usage set entry. */
1867	typedef PGMMAPSETENTRY *PPGMMAPSETENTRY;
1868
1869	/**
1870	* Mapping cache usage set.
1871	*
1872	* This is used in ring-0 and the raw-mode context to track dynamic mappings
1873	* done during exits / traps. The set is
1874	*/
1875	typedef struct PGMMAPSET
1876	{
1877	/** The number of occupied entries.
1878	* This is PGMMAPSET_CLOSED if the set is closed and we're not supposed to do
1879	* dynamic mappings. */
1880	uint32_t cEntries;
1881	/** The start of the current subset.
1882	* This is UINT32_MAX if no subset is currently open. */
1883	uint32_t iSubset;
1884	/** The index of the current CPU, only valid if the set is open. */
1885	int32_t iCpu;
1886	uint32_t alignment;
1887	/** The entries. */
1888	PGMMAPSETENTRY aEntries[64];
1889	/** HCPhys -> iEntry fast lookup table.
1890	* Use PGMMAPSET_HASH for hashing.
1891	* The entries may or may not be valid, check against cEntries. */
1892	uint8_t aiHashTable[128];
1893	} PGMMAPSET;
1894	AssertCompileSizeAlignment(PGMMAPSET, 8);
1895	/** Pointer to the mapping cache set. */
1896	typedef PGMMAPSET *PPGMMAPSET;
1897
1898	/** PGMMAPSET::cEntries value for a closed set. */
1899	#define PGMMAPSET_CLOSED UINT32_C(0xdeadc0fe)
1900
1901	/** Hash function for aiHashTable. */
1902	#define PGMMAPSET_HASH(HCPhys) (((HCPhys) >> PAGE_SHIFT) & 127)
1903
1904
1905	/** @name Context neutral page mapper TLB.
1906	*
1907	* Hoping to avoid some code and bug duplication parts of the GCxxx->CCPtr
1908	* code is writting in a kind of context neutral way. Time will show whether
1909	* this actually makes sense or not...
1910	*
1911	* @todo this needs to be reconsidered and dropped/redone since the ring-0
1912	* context ends up using a global mapping cache on some platforms
1913	* (darwin).
1914	*
1915	* @{ */
1916	/** @typedef PPGMPAGEMAPTLB
1917	* The page mapper TLB pointer type for the current context. */
1918	/** @typedef PPGMPAGEMAPTLB
1919	* The page mapper TLB entry pointer type for the current context. */
1920	/** @typedef PPGMPAGEMAPTLB
1921	* The page mapper TLB entry pointer pointer type for the current context. */
1922	/** @def PGM_PAGEMAPTLB_ENTRIES
1923	* The number of TLB entries in the page mapper TLB for the current context. */
1924	/** @def PGM_PAGEMAPTLB_IDX
1925	* Calculate the TLB index for a guest physical address.
1926	* @returns The TLB index.
1927	* @param GCPhys The guest physical address. */
1928	/** @typedef PPGMPAGEMAP
1929	* Pointer to a page mapper unit for current context. */
1930	/** @typedef PPPGMPAGEMAP
1931	* Pointer to a page mapper unit pointer for current context. */
1932	#ifdef IN_RC
1933	// typedef PPGMPAGEGCMAPTLB PPGMPAGEMAPTLB;
1934	// typedef PPGMPAGEGCMAPTLBE PPGMPAGEMAPTLBE;
1935	// typedef PPGMPAGEGCMAPTLBE *PPPGMPAGEMAPTLBE;
1936	# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGEGCMAPTLB_ENTRIES
1937	# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGEGCMAPTLB_IDX(GCPhys)
1938	typedef void * PPGMPAGEMAP;
1939	typedef void ** PPPGMPAGEMAP;
1940	//#elif IN_RING0
1941	// typedef PPGMPAGER0MAPTLB PPGMPAGEMAPTLB;
1942	// typedef PPGMPAGER0MAPTLBE PPGMPAGEMAPTLBE;
1943	// typedef PPGMPAGER0MAPTLBE *PPPGMPAGEMAPTLBE;
1944	//# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER0MAPTLB_ENTRIES
1945	//# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER0MAPTLB_IDX(GCPhys)
1946	// typedef PPGMCHUNKR0MAP PPGMPAGEMAP;
1947	// typedef PPPGMCHUNKR0MAP PPPGMPAGEMAP;
1948	#else
1949	typedef PPGMPAGER3MAPTLB PPGMPAGEMAPTLB;
1950	typedef PPGMPAGER3MAPTLBE PPGMPAGEMAPTLBE;
1951	typedef PPGMPAGER3MAPTLBE *PPPGMPAGEMAPTLBE;
1952	# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER3MAPTLB_ENTRIES
1953	# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER3MAPTLB_IDX(GCPhys)
1954	typedef PPGMCHUNKR3MAP PPGMPAGEMAP;
1955	typedef PPPGMCHUNKR3MAP PPPGMPAGEMAP;
1956	#endif
1957	/** @} */
1958
1959
1960	/** @name PGM Pool Indexes.
1961	* Aka. the unique shadow page identifier.
1962	* @{ */
1963	/** NIL page pool IDX. */
1964	#define NIL_PGMPOOL_IDX 0
1965	/** The first normal index. There used to be 5 fictive pages up front, now
1966	* there is only the NIL page. */
1967	#define PGMPOOL_IDX_FIRST 1
1968	/** The last valid index. (inclusive, 14 bits) */
1969	#define PGMPOOL_IDX_LAST 0x3fff
1970	/** @} */
1971
1972	/** The NIL index for the parent chain. */
1973	#define NIL_PGMPOOL_USER_INDEX ((uint16_t)0xffff)
1974	#define NIL_PGMPOOL_PRESENT_INDEX ((uint16_t)0xffff)
1975
1976	/**
1977	* Node in the chain linking a shadowed page to it's parent (user).
1978	*/
1979	#pragma pack(1)
1980	typedef struct PGMPOOLUSER
1981	{
1982	/** The index to the next item in the chain. NIL_PGMPOOL_USER_INDEX is no next. */
1983	uint16_t iNext;
1984	/** The user page index. */
1985	uint16_t iUser;
1986	/** Index into the user table. */
1987	uint32_t iUserTable;
1988	} PGMPOOLUSER, *PPGMPOOLUSER;
1989	typedef const PGMPOOLUSER *PCPGMPOOLUSER;
1990	#pragma pack()
1991
1992
1993	/** The NIL index for the phys ext chain. */
1994	#define NIL_PGMPOOL_PHYSEXT_INDEX ((uint16_t)0xffff)
1995	/** The NIL pte index for a phys ext chain slot. */
1996	#define NIL_PGMPOOL_PHYSEXT_IDX_PTE ((uint16_t)0xffff)
1997
1998	/**
1999	* Node in the chain of physical cross reference extents.
2000	* @todo Calling this an 'extent' is not quite right, find a better name.
2001	* @todo find out the optimal size of the aidx array
2002	*/
2003	#pragma pack(1)
2004	typedef struct PGMPOOLPHYSEXT
2005	{
2006	/** The index to the next item in the chain. NIL_PGMPOOL_PHYSEXT_INDEX is no next. */
2007	uint16_t iNext;
2008	/** Alignment. */
2009	uint16_t u16Align;
2010	/** The user page index. */
2011	uint16_t aidx[3];
2012	/** The page table index or NIL_PGMPOOL_PHYSEXT_IDX_PTE if unknown. */
2013	uint16_t apte[3];
2014	} PGMPOOLPHYSEXT, *PPGMPOOLPHYSEXT;
2015	typedef const PGMPOOLPHYSEXT *PCPGMPOOLPHYSEXT;
2016	#pragma pack()
2017
2018
2019	/**
2020	* The kind of page that's being shadowed.
2021	*/
2022	typedef enum PGMPOOLKIND
2023	{
2024	/** The virtual invalid 0 entry. */
2025	PGMPOOLKIND_INVALID = 0,
2026	/** The entry is free (=unused). */
2027	PGMPOOLKIND_FREE,
2028
2029	/** Shw: 32-bit page table; Gst: no paging */
2030	PGMPOOLKIND_32BIT_PT_FOR_PHYS,
2031	/** Shw: 32-bit page table; Gst: 32-bit page table. */
2032	PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT,
2033	/** Shw: 32-bit page table; Gst: 4MB page. */
2034	PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB,
2035	/** Shw: PAE page table; Gst: no paging */
2036	PGMPOOLKIND_PAE_PT_FOR_PHYS,
2037	/** Shw: PAE page table; Gst: 32-bit page table. */
2038	PGMPOOLKIND_PAE_PT_FOR_32BIT_PT,
2039	/** Shw: PAE page table; Gst: Half of a 4MB page. */
2040	PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB,
2041	/** Shw: PAE page table; Gst: PAE page table. */
2042	PGMPOOLKIND_PAE_PT_FOR_PAE_PT,
2043	/** Shw: PAE page table; Gst: 2MB page. */
2044	PGMPOOLKIND_PAE_PT_FOR_PAE_2MB,
2045
2046	/** Shw: 32-bit page directory. Gst: 32-bit page directory. */
2047	PGMPOOLKIND_32BIT_PD,
2048	/** Shw: 32-bit page directory. Gst: no paging. */
2049	PGMPOOLKIND_32BIT_PD_PHYS,
2050	/** Shw: PAE page directory 0; Gst: 32-bit page directory. */
2051	PGMPOOLKIND_PAE_PD0_FOR_32BIT_PD,
2052	/** Shw: PAE page directory 1; Gst: 32-bit page directory. */
2053	PGMPOOLKIND_PAE_PD1_FOR_32BIT_PD,
2054	/** Shw: PAE page directory 2; Gst: 32-bit page directory. */
2055	PGMPOOLKIND_PAE_PD2_FOR_32BIT_PD,
2056	/** Shw: PAE page directory 3; Gst: 32-bit page directory. */
2057	PGMPOOLKIND_PAE_PD3_FOR_32BIT_PD,
2058	/** Shw: PAE page directory; Gst: PAE page directory. */
2059	PGMPOOLKIND_PAE_PD_FOR_PAE_PD,
2060	/** Shw: PAE page directory; Gst: no paging. Note: +NP. */
2061	PGMPOOLKIND_PAE_PD_PHYS,
2062
2063	/** Shw: PAE page directory pointer table (legacy, 4 entries); Gst 32 bits paging. */
2064	PGMPOOLKIND_PAE_PDPT_FOR_32BIT,
2065	/** Shw: PAE page directory pointer table (legacy, 4 entries); Gst PAE PDPT. */
2066	PGMPOOLKIND_PAE_PDPT,
2067	/** Shw: PAE page directory pointer table (legacy, 4 entries); Gst: no paging. */
2068	PGMPOOLKIND_PAE_PDPT_PHYS,
2069
2070	/** Shw: 64-bit page directory pointer table; Gst: 64-bit page directory pointer table. */
2071	PGMPOOLKIND_64BIT_PDPT_FOR_64BIT_PDPT,
2072	/** Shw: 64-bit page directory pointer table; Gst: no paging */
2073	PGMPOOLKIND_64BIT_PDPT_FOR_PHYS,
2074	/** Shw: 64-bit page directory table; Gst: 64-bit page directory table. */
2075	PGMPOOLKIND_64BIT_PD_FOR_64BIT_PD,
2076	/** Shw: 64-bit page directory table; Gst: no paging */
2077	PGMPOOLKIND_64BIT_PD_FOR_PHYS, /* 24 */
2078
2079	/** Shw: 64-bit PML4; Gst: 64-bit PML4. */
2080	PGMPOOLKIND_64BIT_PML4,
2081
2082	/** Shw: EPT page directory pointer table; Gst: no paging */
2083	PGMPOOLKIND_EPT_PDPT_FOR_PHYS,
2084	/** Shw: EPT page directory table; Gst: no paging */
2085	PGMPOOLKIND_EPT_PD_FOR_PHYS,
2086	/** Shw: EPT page table; Gst: no paging */
2087	PGMPOOLKIND_EPT_PT_FOR_PHYS,
2088
2089	/** Shw: Root Nested paging table. */
2090	PGMPOOLKIND_ROOT_NESTED,
2091
2092	/** The last valid entry. */
2093	PGMPOOLKIND_LAST = PGMPOOLKIND_ROOT_NESTED
2094	} PGMPOOLKIND;
2095
2096	/**
2097	* The access attributes of the page; only applies to big pages.
2098	*/
2099	typedef enum
2100	{
2101	PGMPOOLACCESS_DONTCARE = 0,
2102	PGMPOOLACCESS_USER_RW,
2103	PGMPOOLACCESS_USER_R,
2104	PGMPOOLACCESS_USER_RW_NX,
2105	PGMPOOLACCESS_USER_R_NX,
2106	PGMPOOLACCESS_SUPERVISOR_RW,
2107	PGMPOOLACCESS_SUPERVISOR_R,
2108	PGMPOOLACCESS_SUPERVISOR_RW_NX,
2109	PGMPOOLACCESS_SUPERVISOR_R_NX
2110	} PGMPOOLACCESS;
2111
2112	/**
2113	* The tracking data for a page in the pool.
2114	*/
2115	typedef struct PGMPOOLPAGE
2116	{
2117	/** AVL node code with the (HC) physical address of this page. */
2118	AVLOHCPHYSNODECORE Core;
2119	/** Pointer to the R3 mapping of the page. */
2120	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
2121	R3PTRTYPE(void *) pvPageR3;
2122	#else
2123	R3R0PTRTYPE(void *) pvPageR3;
2124	#endif
2125	#if HC_ARCH_BITS == 32 && GC_ARCH_BITS == 64
2126	uint32_t Alignment0;
2127	#endif
2128	/** The guest physical address. */
2129	RTGCPHYS GCPhys;
2130	/** The kind of page we're shadowing. (This is really a PGMPOOLKIND enum.) */
2131	uint8_t enmKind;
2132	/** The subkind of page we're shadowing. (This is really a PGMPOOLACCESS enum.) */
2133	uint8_t enmAccess;
2134	/** This supplements enmKind and enmAccess */
2135	bool fA20Enabled : 1;
2136
2137	/** Used to indicate that the page is zeroed. */
2138	bool fZeroed : 1;
2139	/** Used to indicate that a PT has non-global entries. */
2140	bool fSeenNonGlobal : 1;
2141	/** Used to indicate that we're monitoring writes to the guest page. */
2142	bool fMonitored : 1;
2143	/** Used to indicate that the page is in the cache (e.g. in the GCPhys hash).
2144	* (All pages are in the age list.) */
2145	bool fCached : 1;
2146	/** This is used by the R3 access handlers when invoked by an async thread.
2147	* It's a hack required because of REMR3NotifyHandlerPhysicalDeregister. */
2148	bool volatile fReusedFlushPending : 1;
2149	/** Used to mark the page as dirty (write monitoring is temporarily
2150	* off). */
2151	bool fDirty : 1;
2152	bool fPadding1 : 1;
2153	bool fPadding2;
2154
2155	/** The index of this page. */
2156	uint16_t idx;
2157	/** The next entry in the list this page currently resides in.
2158	* It's either in the free list or in the GCPhys hash. */
2159	uint16_t iNext;
2160	/** Head of the user chain. NIL_PGMPOOL_USER_INDEX if not currently in use. */
2161	uint16_t iUserHead;
2162	/** The number of present entries. */
2163	uint16_t cPresent;
2164	/** The first entry in the table which is present. */
2165	uint16_t iFirstPresent;
2166	/** The number of modifications to the monitored page. */
2167	uint16_t cModifications;
2168	/** The next modified page. NIL_PGMPOOL_IDX if tail. */
2169	uint16_t iModifiedNext;
2170	/** The previous modified page. NIL_PGMPOOL_IDX if head. */
2171	uint16_t iModifiedPrev;
2172	/** The next page sharing access handler. NIL_PGMPOOL_IDX if tail. */
2173	uint16_t iMonitoredNext;
2174	/** The previous page sharing access handler. NIL_PGMPOOL_IDX if head. */
2175	uint16_t iMonitoredPrev;
2176	/** The next page in the age list. */
2177	uint16_t iAgeNext;
2178	/** The previous page in the age list. */
2179	uint16_t iAgePrev;
2180	/** Index into PGMPOOL::aDirtyPages if fDirty is set. */
2181	uint8_t idxDirtyEntry;
2182
2183	/** @name Access handler statistics to determine whether the guest is
2184	* (re)initializing a page table.
2185	* @{ */
2186	RTGCPTR GCPtrLastAccessHandlerRip;
2187	RTGCPTR GCPtrLastAccessHandlerFault;
2188	uint64_t cLastAccessHandler;
2189	/** @} */
2190	/** Used to indicate that this page can't be flushed. Important for cr3 root pages or shadow pae pd pages. */
2191	uint32_t volatile cLocked;
2192	#if GC_ARCH_BITS == 64
2193	uint32_t u32Alignment3;
2194	#endif
2195	# ifdef VBOX_STRICT
2196	RTGCPTR GCPtrDirtyFault;
2197	# endif
2198	} PGMPOOLPAGE;
2199	/** Pointer to a pool page. */
2200	typedef PGMPOOLPAGE *PPGMPOOLPAGE;
2201	/** Pointer to a const pool page. */
2202	typedef PGMPOOLPAGE const *PCPGMPOOLPAGE;
2203	/** Pointer to a pool page pointer. */
2204	typedef PGMPOOLPAGE **PPPGMPOOLPAGE;
2205
2206
2207	/** The hash table size. */
2208	# define PGMPOOL_HASH_SIZE 0x40
2209	/** The hash function. */
2210	# define PGMPOOL_HASH(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGMPOOL_HASH_SIZE - 1) )
2211
2212
2213	/**
2214	* The shadow page pool instance data.
2215	*
2216	* It's all one big allocation made at init time, except for the
2217	* pages that is. The user nodes follows immediately after the
2218	* page structures.
2219	*/
2220	typedef struct PGMPOOL
2221	{
2222	/** The VM handle - R3 Ptr. */
2223	PVMR3 pVMR3;
2224	/** The VM handle - R0 Ptr. */
2225	PVMR0 pVMR0;
2226	/** The VM handle - RC Ptr. */
2227	PVMRC pVMRC;
2228	/** The max pool size. This includes the special IDs. */
2229	uint16_t cMaxPages;
2230	/** The current pool size. */
2231	uint16_t cCurPages;
2232	/** The head of the free page list. */
2233	uint16_t iFreeHead;
2234	/* Padding. */
2235	uint16_t u16Padding;
2236	/** Head of the chain of free user nodes. */
2237	uint16_t iUserFreeHead;
2238	/** The number of user nodes we've allocated. */
2239	uint16_t cMaxUsers;
2240	/** The number of present page table entries in the entire pool. */
2241	uint32_t cPresent;
2242	/** Pointer to the array of user nodes - RC pointer. */
2243	RCPTRTYPE(PPGMPOOLUSER) paUsersRC;
2244	/** Pointer to the array of user nodes - R3 pointer. */
2245	R3PTRTYPE(PPGMPOOLUSER) paUsersR3;
2246	/** Pointer to the array of user nodes - R0 pointer. */
2247	R0PTRTYPE(PPGMPOOLUSER) paUsersR0;
2248	/** Head of the chain of free phys ext nodes. */
2249	uint16_t iPhysExtFreeHead;
2250	/** The number of user nodes we've allocated. */
2251	uint16_t cMaxPhysExts;
2252	/** Pointer to the array of physical xref extent - RC pointer. */
2253	RCPTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsRC;
2254	/** Pointer to the array of physical xref extent nodes - R3 pointer. */
2255	R3PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsR3;
2256	/** Pointer to the array of physical xref extent nodes - R0 pointer. */
2257	R0PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsR0;
2258	/** Hash table for GCPhys addresses. */
2259	uint16_t aiHash[PGMPOOL_HASH_SIZE];
2260	/** The head of the age list. */
2261	uint16_t iAgeHead;
2262	/** The tail of the age list. */
2263	uint16_t iAgeTail;
2264	/** Set if the cache is enabled. */
2265	bool fCacheEnabled;
2266	/** Alignment padding. */
2267	bool afPadding1[3];
2268	/** Head of the list of modified pages. */
2269	uint16_t iModifiedHead;
2270	/** The current number of modified pages. */
2271	uint16_t cModifiedPages;
2272	/** Access handler, RC. */
2273	RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnAccessHandlerRC;
2274	/** Access handler, R0. */
2275	R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnAccessHandlerR0;
2276	/** Access handler, R3. */
2277	R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnAccessHandlerR3;
2278	/** The access handler description (R3 ptr). */
2279	R3PTRTYPE(const char *) pszAccessHandler;
2280	# if HC_ARCH_BITS == 32
2281	/** Alignment padding. */
2282	uint32_t u32Padding2;
2283	# endif
2284	/** Next available slot (in aDirtyPages). */
2285	uint32_t idxFreeDirtyPage;
2286	/** Number of active dirty pages. */
2287	uint32_t cDirtyPages;
2288	/** Array of current dirty pgm pool page indices. */
2289	struct
2290	{
2291	uint16_t uIdx;
2292	uint16_t Alignment[3];
2293	uint64_t aPage[512];
2294	} aDirtyPages[16];
2295	/** The number of pages currently in use. */
2296	uint16_t cUsedPages;
2297	#ifdef VBOX_WITH_STATISTICS
2298	/** The high water mark for cUsedPages. */
2299	uint16_t cUsedPagesHigh;
2300	uint32_t Alignment1; /*< Align the next member on a 64-bit boundary. /
2301	/** Profiling pgmPoolAlloc(). */
2302	STAMPROFILEADV StatAlloc;
2303	/** Profiling pgmR3PoolClearDoIt(). */
2304	STAMPROFILE StatClearAll;
2305	/** Profiling pgmR3PoolReset(). */
2306	STAMPROFILE StatR3Reset;
2307	/** Profiling pgmPoolFlushPage(). */
2308	STAMPROFILE StatFlushPage;
2309	/** Profiling pgmPoolFree(). */
2310	STAMPROFILE StatFree;
2311	/** Counting explicit flushes by PGMPoolFlushPage(). */
2312	STAMCOUNTER StatForceFlushPage;
2313	/** Counting explicit flushes of dirty pages by PGMPoolFlushPage(). */
2314	STAMCOUNTER StatForceFlushDirtyPage;
2315	/** Counting flushes for reused pages. */
2316	STAMCOUNTER StatForceFlushReused;
2317	/** Profiling time spent zeroing pages. */
2318	STAMPROFILE StatZeroPage;
2319	/** Profiling of pgmPoolTrackDeref. */
2320	STAMPROFILE StatTrackDeref;
2321	/** Profiling pgmTrackFlushGCPhysPT. */
2322	STAMPROFILE StatTrackFlushGCPhysPT;
2323	/** Profiling pgmTrackFlushGCPhysPTs. */
2324	STAMPROFILE StatTrackFlushGCPhysPTs;
2325	/** Profiling pgmTrackFlushGCPhysPTsSlow. */
2326	STAMPROFILE StatTrackFlushGCPhysPTsSlow;
2327	/** Number of times we've been out of user records. */
2328	STAMCOUNTER StatTrackFreeUpOneUser;
2329	/** Nr of flushed entries. */
2330	STAMCOUNTER StatTrackFlushEntry;
2331	/** Nr of updated entries. */
2332	STAMCOUNTER StatTrackFlushEntryKeep;
2333	/** Profiling deref activity related tracking GC physical pages. */
2334	STAMPROFILE StatTrackDerefGCPhys;
2335	/** Number of linear searches for a HCPhys in the ram ranges. */
2336	STAMCOUNTER StatTrackLinearRamSearches;
2337	/** The number of failing pgmPoolTrackPhysExtAlloc calls. */
2338	STAMCOUNTER StamTrackPhysExtAllocFailures;
2339	/** Profiling the RC/R0 access handler. */
2340	STAMPROFILE StatMonitorRZ;
2341	/** Times we've failed interpreting the instruction. */
2342	STAMCOUNTER StatMonitorRZEmulateInstr;
2343	/** Profiling the pgmPoolFlushPage calls made from the RC/R0 access handler. */
2344	STAMPROFILE StatMonitorRZFlushPage;
2345	/* Times we've detected a page table reinit. */
2346	STAMCOUNTER StatMonitorRZFlushReinit;
2347	/** Counting flushes for pages that are modified too often. */
2348	STAMCOUNTER StatMonitorRZFlushModOverflow;
2349	/** Times we've detected fork(). */
2350	STAMCOUNTER StatMonitorRZFork;
2351	/** Profiling the RC/R0 access we've handled (except REP STOSD). */
2352	STAMPROFILE StatMonitorRZHandled;
2353	/** Times we've failed interpreting a patch code instruction. */
2354	STAMCOUNTER StatMonitorRZIntrFailPatch1;
2355	/** Times we've failed interpreting a patch code instruction during flushing. */
2356	STAMCOUNTER StatMonitorRZIntrFailPatch2;
2357	/** The number of times we've seen rep prefixes we can't handle. */
2358	STAMCOUNTER StatMonitorRZRepPrefix;
2359	/** Profiling the REP STOSD cases we've handled. */
2360	STAMPROFILE StatMonitorRZRepStosd;
2361	/** Nr of handled PT faults. */
2362	STAMCOUNTER StatMonitorRZFaultPT;
2363	/** Nr of handled PD faults. */
2364	STAMCOUNTER StatMonitorRZFaultPD;
2365	/** Nr of handled PDPT faults. */
2366	STAMCOUNTER StatMonitorRZFaultPDPT;
2367	/** Nr of handled PML4 faults. */
2368	STAMCOUNTER StatMonitorRZFaultPML4;
2369
2370	/** Profiling the R3 access handler. */
2371	STAMPROFILE StatMonitorR3;
2372	/** Times we've failed interpreting the instruction. */
2373	STAMCOUNTER StatMonitorR3EmulateInstr;
2374	/** Profiling the pgmPoolFlushPage calls made from the R3 access handler. */
2375	STAMPROFILE StatMonitorR3FlushPage;
2376	/* Times we've detected a page table reinit. */
2377	STAMCOUNTER StatMonitorR3FlushReinit;
2378	/** Counting flushes for pages that are modified too often. */
2379	STAMCOUNTER StatMonitorR3FlushModOverflow;
2380	/** Times we've detected fork(). */
2381	STAMCOUNTER StatMonitorR3Fork;
2382	/** Profiling the R3 access we've handled (except REP STOSD). */
2383	STAMPROFILE StatMonitorR3Handled;
2384	/** The number of times we've seen rep prefixes we can't handle. */
2385	STAMCOUNTER StatMonitorR3RepPrefix;
2386	/** Profiling the REP STOSD cases we've handled. */
2387	STAMPROFILE StatMonitorR3RepStosd;
2388	/** Nr of handled PT faults. */
2389	STAMCOUNTER StatMonitorR3FaultPT;
2390	/** Nr of handled PD faults. */
2391	STAMCOUNTER StatMonitorR3FaultPD;
2392	/** Nr of handled PDPT faults. */
2393	STAMCOUNTER StatMonitorR3FaultPDPT;
2394	/** Nr of handled PML4 faults. */
2395	STAMCOUNTER StatMonitorR3FaultPML4;
2396	/** The number of times we're called in an async thread an need to flush. */
2397	STAMCOUNTER StatMonitorR3Async;
2398	/** Times we've called pgmPoolResetDirtyPages (and there were dirty page). */
2399	STAMCOUNTER StatResetDirtyPages;
2400	/** Times we've called pgmPoolAddDirtyPage. */
2401	STAMCOUNTER StatDirtyPage;
2402	/** Times we've had to flush duplicates for dirty page management. */
2403	STAMCOUNTER StatDirtyPageDupFlush;
2404	/** Times we've had to flush because of overflow. */
2405	STAMCOUNTER StatDirtyPageOverFlowFlush;
2406
2407	/** The high water mark for cModifiedPages. */
2408	uint16_t cModifiedPagesHigh;
2409	uint16_t Alignment2[3]; /*< Align the next member on a 64-bit boundary. /
2410
2411	/** The number of cache hits. */
2412	STAMCOUNTER StatCacheHits;
2413	/** The number of cache misses. */
2414	STAMCOUNTER StatCacheMisses;
2415	/** The number of times we've got a conflict of 'kind' in the cache. */
2416	STAMCOUNTER StatCacheKindMismatches;
2417	/** Number of times we've been out of pages. */
2418	STAMCOUNTER StatCacheFreeUpOne;
2419	/** The number of cacheable allocations. */
2420	STAMCOUNTER StatCacheCacheable;
2421	/** The number of uncacheable allocations. */
2422	STAMCOUNTER StatCacheUncacheable;
2423	#else
2424	uint32_t Alignment3; /*< Align the next member on a 64-bit boundary. /
2425	#endif
2426	/** The AVL tree for looking up a page by its HC physical address. */
2427	AVLOHCPHYSTREE HCPhysTree;
2428	uint32_t Alignment4; /*< Align the next member on a 64-bit boundary. /
2429	/** Array of pages. (cMaxPages in length)
2430	* The Id is the index into thist array.
2431	*/
2432	PGMPOOLPAGE aPages[PGMPOOL_IDX_FIRST];
2433	} PGMPOOL, PPGMPOOL, *PPPGMPOOL;
2434	AssertCompileMemberAlignment(PGMPOOL, iModifiedHead, 8);
2435	AssertCompileMemberAlignment(PGMPOOL, aDirtyPages, 8);
2436	AssertCompileMemberAlignment(PGMPOOL, cUsedPages, 8);
2437	#ifdef VBOX_WITH_STATISTICS
2438	AssertCompileMemberAlignment(PGMPOOL, StatAlloc, 8);
2439	#endif
2440	AssertCompileMemberAlignment(PGMPOOL, aPages, 8);
2441
2442
2443	/** @def PGMPOOL_PAGE_2_PTR
2444	* Maps a pool page pool into the current context.
2445	*
2446	* @returns VBox status code.
2447	* @param a_pVM Pointer to the VM.
2448	* @param a_pPage The pool page.
2449	*
2450	* @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
2451	* small page window employeed by that function. Be careful.
2452	* @remark There is no need to assert on the result.
2453	*/
2454	#if defined(IN_RC) \|\| defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
2455	# define PGMPOOL_PAGE_2_PTR(a_pVM, a_pPage) pgmPoolMapPageInlined((a_pVM), (a_pPage) RTLOG_COMMA_SRC_POS)
2456	#elif defined(VBOX_STRICT) \|\| 1 /* temporarily going strict here */
2457	# define PGMPOOL_PAGE_2_PTR(a_pVM, a_pPage) pgmPoolMapPageStrict(a_pPage, __FUNCTION__)
2458	DECLINLINE(void ) pgmPoolMapPageStrict(PPGMPOOLPAGE a_pPage, const char pszCaller)
2459	{
2460	AssertPtr(a_pPage);
2461	AssertReleaseMsg(RT_VALID_PTR(a_pPage->pvPageR3), ("enmKind=%d idx=%#x HCPhys=%RHp GCPhys=%RGp caller=%s\n", a_pPage->enmKind, a_pPage->idx, a_pPage->Core.Key, a_pPage->GCPhys, pszCaller));
2462	return a_pPage->pvPageR3;
2463	}
2464	#else
2465	# define PGMPOOL_PAGE_2_PTR(pVM, a_pPage) ((a_pPage)->pvPageR3)
2466	#endif
2467
2468
2469	/** @def PGMPOOL_PAGE_2_PTR_V2
2470	* Maps a pool page pool into the current context, taking both VM and VMCPU.
2471	*
2472	* @returns VBox status code.
2473	* @param a_pVM Pointer to the VM.
2474	* @param a_pVCpu The current CPU.
2475	* @param a_pPage The pool page.
2476	*
2477	* @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
2478	* small page window employeed by that function. Be careful.
2479	* @remark There is no need to assert on the result.
2480	*/
2481	#if defined(IN_RC) \|\| defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
2482	# define PGMPOOL_PAGE_2_PTR_V2(a_pVM, a_pVCpu, a_pPage) pgmPoolMapPageV2Inlined((a_pVM), (a_pVCpu), (a_pPage) RTLOG_COMMA_SRC_POS)
2483	#else
2484	# define PGMPOOL_PAGE_2_PTR_V2(a_pVM, a_pVCpu, a_pPage) PGMPOOL_PAGE_2_PTR((a_pVM), (a_pPage))
2485	#endif
2486
2487
2488	/** @name Per guest page tracking data.
2489	* This is currently as a 16-bit word in the PGMPAGE structure, the idea though
2490	* is to use more bits for it and split it up later on. But for now we'll play
2491	* safe and change as little as possible.
2492	*
2493	* The 16-bit word has two parts:
2494	*
2495	* The first 14-bit forms the @a idx field. It is either the index of a page in
2496	* the shadow page pool, or and index into the extent list.
2497	*
2498	* The 2 topmost bits makes up the @a cRefs field, which counts the number of
2499	* shadow page pool references to the page. If cRefs equals
2500	* PGMPOOL_CREFS_PHYSEXT, then the @a idx field is an indext into the extent
2501	* (misnomer) table and not the shadow page pool.
2502	*
2503	* See PGM_PAGE_GET_TRACKING and PGM_PAGE_SET_TRACKING for how to get and set
2504	* the 16-bit word.
2505	*
2506	* @{ */
2507	/** The shift count for getting to the cRefs part. */
2508	#define PGMPOOL_TD_CREFS_SHIFT 14
2509	/** The mask applied after shifting the tracking data down by
2510	* PGMPOOL_TD_CREFS_SHIFT. */
2511	#define PGMPOOL_TD_CREFS_MASK 0x3
2512	/** The cRefs value used to indicate that the idx is the head of a
2513	* physical cross reference list. */
2514	#define PGMPOOL_TD_CREFS_PHYSEXT PGMPOOL_TD_CREFS_MASK
2515	/** The shift used to get idx. */
2516	#define PGMPOOL_TD_IDX_SHIFT 0
2517	/** The mask applied to the idx after shifting down by PGMPOOL_TD_IDX_SHIFT. */
2518	#define PGMPOOL_TD_IDX_MASK 0x3fff
2519	/** The idx value when we're out of of PGMPOOLPHYSEXT entries or/and there are
2520	* simply too many mappings of this page. */
2521	#define PGMPOOL_TD_IDX_OVERFLOWED PGMPOOL_TD_IDX_MASK
2522
2523	/** @def PGMPOOL_TD_MAKE
2524	* Makes a 16-bit tracking data word.
2525	*
2526	* @returns tracking data.
2527	* @param cRefs The @a cRefs field. Must be within bounds!
2528	* @param idx The @a idx field. Must also be within bounds! */
2529	#define PGMPOOL_TD_MAKE(cRefs, idx) ( ((cRefs) << PGMPOOL_TD_CREFS_SHIFT) \| (idx) )
2530
2531	/** @def PGMPOOL_TD_GET_CREFS
2532	* Get the @a cRefs field from a tracking data word.
2533	*
2534	* @returns The @a cRefs field
2535	* @param u16 The tracking data word.
2536	* @remarks This will only return 1 or PGMPOOL_TD_CREFS_PHYSEXT for a
2537	* non-zero @a u16. */
2538	#define PGMPOOL_TD_GET_CREFS(u16) ( ((u16) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK )
2539
2540	/** @def PGMPOOL_TD_GET_IDX
2541	* Get the @a idx field from a tracking data word.
2542	*
2543	* @returns The @a idx field
2544	* @param u16 The tracking data word. */
2545	#define PGMPOOL_TD_GET_IDX(u16) ( ((u16) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK )
2546	/** @} */
2547
2548
2549
2550	/** @name A20 gate macros
2551	* @{ */
2552	#define PGM_WITH_A20
2553	#ifdef PGM_WITH_A20
2554	# define PGM_A20_IS_ENABLED(a_pVCpu) ((a_pVCpu)->pgm.s.fA20Enabled)
2555	# define PGM_A20_APPLY(a_pVCpu, a_GCPhys) ((a_GCPhys) & (a_pVCpu)->pgm.s.GCPhysA20Mask)
2556	# define PGM_A20_APPLY_TO_VAR(a_pVCpu, a_GCPhysVar) \
2557	do { a_GCPhysVar &= (a_pVCpu)->pgm.s.GCPhysA20Mask; } while (0)
2558	# define PGM_A20_ASSERT_MASKED(pVCpu, a_GCPhys) Assert(PGM_A20_APPLY(pVCpu, a_GCPhys) == (a_GCPhys))
2559	#else
2560	# define PGM_A20_IS_ENABLED(a_pVCpu) (true)
2561	# define PGM_A20_APPLY(a_pVCpu, a_GCPhys) (a_GCPhys)
2562	# define PGM_A20_APPLY_TO_VAR(a_pVCpu, a_GCPhysVar) do { } while (0)
2563	# define PGM_A20_ASSERT_MASKED(pVCpu, a_GCPhys) do { } while (0)
2564	#endif
2565	/** @} */
2566
2567
2568	/**
2569	* Trees are using self relative offsets as pointers.
2570	* So, all its data, including the root pointer, must be in the heap for HC and GC
2571	* to have the same layout.
2572	*/
2573	typedef struct PGMTREES
2574	{
2575	/** Physical access handlers (AVL range+offsetptr tree). */
2576	AVLROGCPHYSTREE PhysHandlers;
2577	/** Virtual access handlers (AVL range + GC ptr tree). */
2578	AVLROGCPTRTREE VirtHandlers;
2579	/** Virtual access handlers (Phys range AVL range + offsetptr tree). */
2580	AVLROGCPHYSTREE PhysToVirtHandlers;
2581	/** Virtual access handlers for the hypervisor (AVL range + GC ptr tree). */
2582	AVLROGCPTRTREE HyperVirtHandlers;
2583	} PGMTREES;
2584	/** Pointer to PGM trees. */
2585	typedef PGMTREES *PPGMTREES;
2586
2587
2588	/**
2589	* Page fault guest state for the AMD64 paging mode.
2590	*/
2591	typedef struct PGMPTWALKCORE
2592	{
2593	/** The guest virtual address that is being resolved by the walk
2594	* (input). */
2595	RTGCPTR GCPtr;
2596
2597	/** The guest physical address that is the result of the walk.
2598	* @remarks only valid if fSucceeded is set. */
2599	RTGCPHYS GCPhys;
2600
2601	/** Set if the walk succeeded, i.d. GCPhys is valid. */
2602	bool fSucceeded;
2603	/** The level problem arrised at.
2604	* PTE is level 1, PDE is level 2, PDPE is level 3, PML4 is level 4, CR3 is
2605	* level 8. This is 0 on success. */
2606	uint8_t uLevel;
2607	/** Set if the page isn't present. */
2608	bool fNotPresent;
2609	/** Encountered a bad physical address. */
2610	bool fBadPhysAddr;
2611	/** Set if there was reserved bit violations. */
2612	bool fRsvdError;
2613	/** Set if it involves a big page (2/4 MB). */
2614	bool fBigPage;
2615	/** Set if it involves a gigantic page (1 GB). */
2616	bool fGigantPage;
2617	/** The effect X86_PTE_US flag for the address. */
2618	bool fEffectiveUS;
2619	/** The effect X86_PTE_RW flag for the address. */
2620	bool fEffectiveRW;
2621	/** The effect X86_PTE_NX flag for the address. */
2622	bool fEffectiveNX;
2623	} PGMPTWALKCORE;
2624
2625
2626	/**
2627	* Guest page table walk for the AMD64 mode.
2628	*/
2629	typedef struct PGMPTWALKGSTAMD64
2630	{
2631	/** The common core. */
2632	PGMPTWALKCORE Core;
2633
2634	PX86PML4 pPml4;
2635	PX86PML4E pPml4e;
2636	X86PML4E Pml4e;
2637
2638	PX86PDPT pPdpt;
2639	PX86PDPE pPdpe;
2640	X86PDPE Pdpe;
2641
2642	PX86PDPAE pPd;
2643	PX86PDEPAE pPde;
2644	X86PDEPAE Pde;
2645
2646	PX86PTPAE pPt;
2647	PX86PTEPAE pPte;
2648	X86PTEPAE Pte;
2649	} PGMPTWALKGSTAMD64;
2650	/** Pointer to a AMD64 guest page table walk. */
2651	typedef PGMPTWALKGSTAMD64 *PPGMPTWALKGSTAMD64;
2652	/** Pointer to a const AMD64 guest page table walk. */
2653	typedef PGMPTWALKGSTAMD64 const *PCPGMPTWALKGSTAMD64;
2654
2655	/**
2656	* Guest page table walk for the PAE mode.
2657	*/
2658	typedef struct PGMPTWALKGSTPAE
2659	{
2660	/** The common core. */
2661	PGMPTWALKCORE Core;
2662
2663	PX86PDPT pPdpt;
2664	PX86PDPE pPdpe;
2665	X86PDPE Pdpe;
2666
2667	PX86PDPAE pPd;
2668	PX86PDEPAE pPde;
2669	X86PDEPAE Pde;
2670
2671	PX86PTPAE pPt;
2672	PX86PTEPAE pPte;
2673	X86PTEPAE Pte;
2674	} PGMPTWALKGSTPAE;
2675	/** Pointer to a PAE guest page table walk. */
2676	typedef PGMPTWALKGSTPAE *PPGMPTWALKGSTPAE;
2677	/** Pointer to a const AMD64 guest page table walk. */
2678	typedef PGMPTWALKGSTPAE const *PCPGMPTWALKGSTPAE;
2679
2680	/**
2681	* Guest page table walk for the 32-bit mode.
2682	*/
2683	typedef struct PGMPTWALKGST32BIT
2684	{
2685	/** The common core. */
2686	PGMPTWALKCORE Core;
2687
2688	PX86PD pPd;
2689	PX86PDE pPde;
2690	X86PDE Pde;
2691
2692	PX86PT pPt;
2693	PX86PTE pPte;
2694	X86PTE Pte;
2695	} PGMPTWALKGST32BIT;
2696	/** Pointer to a 32-bit guest page table walk. */
2697	typedef PGMPTWALKGST32BIT *PPGMPTWALKGST32BIT;
2698	/** Pointer to a const 32-bit guest page table walk. */
2699	typedef PGMPTWALKGST32BIT const *PCPGMPTWALKGST32BIT;
2700
2701
2702	/** @name Paging mode macros
2703	* @{
2704	*/
2705	#ifdef IN_RC
2706	# define PGM_CTX(a,b) a##RC##b
2707	# define PGM_CTX_STR(a,b) a "GC" b
2708	# define PGM_CTX_DECL(type) VMMRCDECL(type)
2709	#else
2710	# ifdef IN_RING3
2711	# define PGM_CTX(a,b) a##R3##b
2712	# define PGM_CTX_STR(a,b) a "R3" b
2713	# define PGM_CTX_DECL(type) DECLCALLBACK(type)
2714	# else
2715	# define PGM_CTX(a,b) a##R0##b
2716	# define PGM_CTX_STR(a,b) a "R0" b
2717	# define PGM_CTX_DECL(type) VMMDECL(type)
2718	# endif
2719	#endif
2720
2721	#define PGM_GST_NAME_REAL(name) PGM_CTX(pgm,GstReal##name)
2722	#define PGM_GST_NAME_RC_REAL_STR(name) "pgmRCGstReal" #name
2723	#define PGM_GST_NAME_R0_REAL_STR(name) "pgmR0GstReal" #name
2724	#define PGM_GST_NAME_PROT(name) PGM_CTX(pgm,GstProt##name)
2725	#define PGM_GST_NAME_RC_PROT_STR(name) "pgmRCGstProt" #name
2726	#define PGM_GST_NAME_R0_PROT_STR(name) "pgmR0GstProt" #name
2727	#define PGM_GST_NAME_32BIT(name) PGM_CTX(pgm,Gst32Bit##name)
2728	#define PGM_GST_NAME_RC_32BIT_STR(name) "pgmRCGst32Bit" #name
2729	#define PGM_GST_NAME_R0_32BIT_STR(name) "pgmR0Gst32Bit" #name
2730	#define PGM_GST_NAME_PAE(name) PGM_CTX(pgm,GstPAE##name)
2731	#define PGM_GST_NAME_RC_PAE_STR(name) "pgmRCGstPAE" #name
2732	#define PGM_GST_NAME_R0_PAE_STR(name) "pgmR0GstPAE" #name
2733	#define PGM_GST_NAME_AMD64(name) PGM_CTX(pgm,GstAMD64##name)
2734	#define PGM_GST_NAME_RC_AMD64_STR(name) "pgmRCGstAMD64" #name
2735	#define PGM_GST_NAME_R0_AMD64_STR(name) "pgmR0GstAMD64" #name
2736	#define PGM_GST_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Gst##name))
2737	#define PGM_GST_DECL(type, name) PGM_CTX_DECL(type) PGM_GST_NAME(name)
2738
2739	#define PGM_SHW_NAME_32BIT(name) PGM_CTX(pgm,Shw32Bit##name)
2740	#define PGM_SHW_NAME_RC_32BIT_STR(name) "pgmRCShw32Bit" #name
2741	#define PGM_SHW_NAME_R0_32BIT_STR(name) "pgmR0Shw32Bit" #name
2742	#define PGM_SHW_NAME_PAE(name) PGM_CTX(pgm,ShwPAE##name)
2743	#define PGM_SHW_NAME_RC_PAE_STR(name) "pgmRCShwPAE" #name
2744	#define PGM_SHW_NAME_R0_PAE_STR(name) "pgmR0ShwPAE" #name
2745	#define PGM_SHW_NAME_AMD64(name) PGM_CTX(pgm,ShwAMD64##name)
2746	#define PGM_SHW_NAME_RC_AMD64_STR(name) "pgmRCShwAMD64" #name
2747	#define PGM_SHW_NAME_R0_AMD64_STR(name) "pgmR0ShwAMD64" #name
2748	#define PGM_SHW_NAME_NESTED(name) PGM_CTX(pgm,ShwNested##name)
2749	#define PGM_SHW_NAME_RC_NESTED_STR(name) "pgmRCShwNested" #name
2750	#define PGM_SHW_NAME_R0_NESTED_STR(name) "pgmR0ShwNested" #name
2751	#define PGM_SHW_NAME_EPT(name) PGM_CTX(pgm,ShwEPT##name)
2752	#define PGM_SHW_NAME_RC_EPT_STR(name) "pgmRCShwEPT" #name
2753	#define PGM_SHW_NAME_R0_EPT_STR(name) "pgmR0ShwEPT" #name
2754	#define PGM_SHW_DECL(type, name) PGM_CTX_DECL(type) PGM_SHW_NAME(name)
2755	#define PGM_SHW_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Shw##name))
2756
2757	/* Shw_Gst */
2758	#define PGM_BTH_NAME_32BIT_REAL(name) PGM_CTX(pgm,Bth32BitReal##name)
2759	#define PGM_BTH_NAME_32BIT_PROT(name) PGM_CTX(pgm,Bth32BitProt##name)
2760	#define PGM_BTH_NAME_32BIT_32BIT(name) PGM_CTX(pgm,Bth32Bit32Bit##name)
2761	#define PGM_BTH_NAME_PAE_REAL(name) PGM_CTX(pgm,BthPAEReal##name)
2762	#define PGM_BTH_NAME_PAE_PROT(name) PGM_CTX(pgm,BthPAEProt##name)
2763	#define PGM_BTH_NAME_PAE_32BIT(name) PGM_CTX(pgm,BthPAE32Bit##name)
2764	#define PGM_BTH_NAME_PAE_PAE(name) PGM_CTX(pgm,BthPAEPAE##name)
2765	#define PGM_BTH_NAME_AMD64_PROT(name) PGM_CTX(pgm,BthAMD64Prot##name)
2766	#define PGM_BTH_NAME_AMD64_AMD64(name) PGM_CTX(pgm,BthAMD64AMD64##name)
2767	#define PGM_BTH_NAME_NESTED_REAL(name) PGM_CTX(pgm,BthNestedReal##name)
2768	#define PGM_BTH_NAME_NESTED_PROT(name) PGM_CTX(pgm,BthNestedProt##name)
2769	#define PGM_BTH_NAME_NESTED_32BIT(name) PGM_CTX(pgm,BthNested32Bit##name)
2770	#define PGM_BTH_NAME_NESTED_PAE(name) PGM_CTX(pgm,BthNestedPAE##name)
2771	#define PGM_BTH_NAME_NESTED_AMD64(name) PGM_CTX(pgm,BthNestedAMD64##name)
2772	#define PGM_BTH_NAME_EPT_REAL(name) PGM_CTX(pgm,BthEPTReal##name)
2773	#define PGM_BTH_NAME_EPT_PROT(name) PGM_CTX(pgm,BthEPTProt##name)
2774	#define PGM_BTH_NAME_EPT_32BIT(name) PGM_CTX(pgm,BthEPT32Bit##name)
2775	#define PGM_BTH_NAME_EPT_PAE(name) PGM_CTX(pgm,BthEPTPAE##name)
2776	#define PGM_BTH_NAME_EPT_AMD64(name) PGM_CTX(pgm,BthEPTAMD64##name)
2777
2778	#define PGM_BTH_NAME_RC_32BIT_REAL_STR(name) "pgmRCBth32BitReal" #name
2779	#define PGM_BTH_NAME_RC_32BIT_PROT_STR(name) "pgmRCBth32BitProt" #name
2780	#define PGM_BTH_NAME_RC_32BIT_32BIT_STR(name) "pgmRCBth32Bit32Bit" #name
2781	#define PGM_BTH_NAME_RC_PAE_REAL_STR(name) "pgmRCBthPAEReal" #name
2782	#define PGM_BTH_NAME_RC_PAE_PROT_STR(name) "pgmRCBthPAEProt" #name
2783	#define PGM_BTH_NAME_RC_PAE_32BIT_STR(name) "pgmRCBthPAE32Bit" #name
2784	#define PGM_BTH_NAME_RC_PAE_PAE_STR(name) "pgmRCBthPAEPAE" #name
2785	#define PGM_BTH_NAME_RC_AMD64_AMD64_STR(name) "pgmRCBthAMD64AMD64" #name
2786	#define PGM_BTH_NAME_RC_NESTED_REAL_STR(name) "pgmRCBthNestedReal" #name
2787	#define PGM_BTH_NAME_RC_NESTED_PROT_STR(name) "pgmRCBthNestedProt" #name
2788	#define PGM_BTH_NAME_RC_NESTED_32BIT_STR(name) "pgmRCBthNested32Bit" #name
2789	#define PGM_BTH_NAME_RC_NESTED_PAE_STR(name) "pgmRCBthNestedPAE" #name
2790	#define PGM_BTH_NAME_RC_NESTED_AMD64_STR(name) "pgmRCBthNestedAMD64" #name
2791	#define PGM_BTH_NAME_RC_EPT_REAL_STR(name) "pgmRCBthEPTReal" #name
2792	#define PGM_BTH_NAME_RC_EPT_PROT_STR(name) "pgmRCBthEPTProt" #name
2793	#define PGM_BTH_NAME_RC_EPT_32BIT_STR(name) "pgmRCBthEPT32Bit" #name
2794	#define PGM_BTH_NAME_RC_EPT_PAE_STR(name) "pgmRCBthEPTPAE" #name
2795	#define PGM_BTH_NAME_RC_EPT_AMD64_STR(name) "pgmRCBthEPTAMD64" #name
2796	#define PGM_BTH_NAME_R0_32BIT_REAL_STR(name) "pgmR0Bth32BitReal" #name
2797	#define PGM_BTH_NAME_R0_32BIT_PROT_STR(name) "pgmR0Bth32BitProt" #name
2798	#define PGM_BTH_NAME_R0_32BIT_32BIT_STR(name) "pgmR0Bth32Bit32Bit" #name
2799	#define PGM_BTH_NAME_R0_PAE_REAL_STR(name) "pgmR0BthPAEReal" #name
2800	#define PGM_BTH_NAME_R0_PAE_PROT_STR(name) "pgmR0BthPAEProt" #name
2801	#define PGM_BTH_NAME_R0_PAE_32BIT_STR(name) "pgmR0BthPAE32Bit" #name
2802	#define PGM_BTH_NAME_R0_PAE_PAE_STR(name) "pgmR0BthPAEPAE" #name
2803	#define PGM_BTH_NAME_R0_AMD64_PROT_STR(name) "pgmR0BthAMD64Prot" #name
2804	#define PGM_BTH_NAME_R0_AMD64_AMD64_STR(name) "pgmR0BthAMD64AMD64" #name
2805	#define PGM_BTH_NAME_R0_NESTED_REAL_STR(name) "pgmR0BthNestedReal" #name
2806	#define PGM_BTH_NAME_R0_NESTED_PROT_STR(name) "pgmR0BthNestedProt" #name
2807	#define PGM_BTH_NAME_R0_NESTED_32BIT_STR(name) "pgmR0BthNested32Bit" #name
2808	#define PGM_BTH_NAME_R0_NESTED_PAE_STR(name) "pgmR0BthNestedPAE" #name
2809	#define PGM_BTH_NAME_R0_NESTED_AMD64_STR(name) "pgmR0BthNestedAMD64" #name
2810	#define PGM_BTH_NAME_R0_EPT_REAL_STR(name) "pgmR0BthEPTReal" #name
2811	#define PGM_BTH_NAME_R0_EPT_PROT_STR(name) "pgmR0BthEPTProt" #name
2812	#define PGM_BTH_NAME_R0_EPT_32BIT_STR(name) "pgmR0BthEPT32Bit" #name
2813	#define PGM_BTH_NAME_R0_EPT_PAE_STR(name) "pgmR0BthEPTPAE" #name
2814	#define PGM_BTH_NAME_R0_EPT_AMD64_STR(name) "pgmR0BthEPTAMD64" #name
2815
2816	#define PGM_BTH_DECL(type, name) PGM_CTX_DECL(type) PGM_BTH_NAME(name)
2817	#define PGM_BTH_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Bth##name))
2818	/** @} */
2819
2820	/**
2821	* Data for each paging mode.
2822	*/
2823	typedef struct PGMMODEDATA
2824	{
2825	/** The guest mode type. */
2826	uint32_t uGstType;
2827	/** The shadow mode type. */
2828	uint32_t uShwType;
2829
2830	/** @name Function pointers for Shadow paging.
2831	* @{
2832	*/
2833	DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2834	DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVMCPU pVCpu));
2835	DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2836	DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask, uint32_t fOpFlags));
2837
2838	DECLRCCALLBACKMEMBER(int, pfnRCShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2839	DECLRCCALLBACKMEMBER(int, pfnRCShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask, uint32_t fOpFlags));
2840
2841	DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2842	DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask, uint32_t fOpFlags));
2843	/** @} */
2844
2845	/** @name Function pointers for Guest paging.
2846	* @{
2847	*/
2848	DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2849	DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVMCPU pVCpu));
2850	DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2851	DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2852	DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2853	DECLRCCALLBACKMEMBER(int, pfnRCGstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2854	DECLRCCALLBACKMEMBER(int, pfnRCGstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2855	DECLRCCALLBACKMEMBER(int, pfnRCGstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2856	DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2857	DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2858	DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2859	/** @} */
2860
2861	/** @name Function pointers for Both Shadow and Guest paging.
2862	* @{
2863	*/
2864	DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2865	/* no pfnR3BthTrap0eHandler */
2866	DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2867	DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2868	DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2869	DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
2870	#ifdef VBOX_STRICT
2871	DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
2872	#endif
2873	DECLR3CALLBACKMEMBER(int, pfnR3BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
2874	DECLR3CALLBACKMEMBER(int, pfnR3BthUnmapCR3,(PVMCPU pVCpu));
2875
2876	DECLRCCALLBACKMEMBER(int, pfnRCBthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
2877	DECLRCCALLBACKMEMBER(int, pfnRCBthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2878	DECLRCCALLBACKMEMBER(int, pfnRCBthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2879	DECLRCCALLBACKMEMBER(int, pfnRCBthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2880	DECLRCCALLBACKMEMBER(int, pfnRCBthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
2881	#ifdef VBOX_STRICT
2882	DECLRCCALLBACKMEMBER(unsigned, pfnRCBthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
2883	#endif
2884	DECLRCCALLBACKMEMBER(int, pfnRCBthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
2885	DECLRCCALLBACKMEMBER(int, pfnRCBthUnmapCR3,(PVMCPU pVCpu));
2886
2887	DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
2888	DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2889	DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2890	DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2891	DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
2892	#ifdef VBOX_STRICT
2893	DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
2894	#endif
2895	DECLR0CALLBACKMEMBER(int, pfnR0BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
2896	DECLR0CALLBACKMEMBER(int, pfnR0BthUnmapCR3,(PVMCPU pVCpu));
2897	/** @} */
2898	} PGMMODEDATA, *PPGMMODEDATA;
2899
2900
2901	#ifdef VBOX_WITH_STATISTICS
2902	/**
2903	* PGM statistics.
2904	*
2905	* These lives on the heap when compiled in as they would otherwise waste
2906	* unnecessary space in release builds.
2907	*/
2908	typedef struct PGMSTATS
2909	{
2910	/* R3 only: */
2911	STAMCOUNTER StatR3DetectedConflicts; /*< R3: Number of times PGMR3MapHasConflicts() detected a conflict. /
2912	STAMPROFILE StatR3ResolveConflict; /*< R3: pgmR3SyncPTResolveConflict() profiling (includes the entire relocation). /
2913
2914	/* R3+RZ */
2915	STAMCOUNTER StatRZChunkR3MapTlbHits; /*< RC/R0: Ring-3/0 chunk mapper TLB hits. /
2916	STAMCOUNTER StatRZChunkR3MapTlbMisses; /*< RC/R0: Ring-3/0 chunk mapper TLB misses. /
2917	STAMCOUNTER StatRZPageMapTlbHits; /*< RC/R0: Ring-3/0 page mapper TLB hits. /
2918	STAMCOUNTER StatRZPageMapTlbMisses; /*< RC/R0: Ring-3/0 page mapper TLB misses. /
2919	STAMCOUNTER StatPageMapTlbFlushes; /*< ALL: Ring-3/0 page mapper TLB flushes. /
2920	STAMCOUNTER StatPageMapTlbFlushEntry; /*< ALL: Ring-3/0 page mapper TLB flushes. /
2921	STAMCOUNTER StatR3ChunkR3MapTlbHits; /*< R3: Ring-3/0 chunk mapper TLB hits. /
2922	STAMCOUNTER StatR3ChunkR3MapTlbMisses; /*< R3: Ring-3/0 chunk mapper TLB misses. /
2923	STAMCOUNTER StatR3PageMapTlbHits; /*< R3: Ring-3/0 page mapper TLB hits. /
2924	STAMCOUNTER StatR3PageMapTlbMisses; /*< R3: Ring-3/0 page mapper TLB misses. /
2925	STAMCOUNTER StatRZRamRangeTlbHits; /*< RC/R0: RAM range TLB hits. /
2926	STAMCOUNTER StatRZRamRangeTlbMisses; /*< RC/R0: RAM range TLB misses. /
2927	STAMCOUNTER StatR3RamRangeTlbHits; /*< R3: RAM range TLB hits. /
2928	STAMCOUNTER StatR3RamRangeTlbMisses; /*< R3: RAM range TLB misses. /
2929	STAMPROFILE StatRZSyncCR3HandlerVirtualReset; /*< RC/R0: Profiling of the virtual handler resets. /
2930	STAMPROFILE StatRZSyncCR3HandlerVirtualUpdate; /*< RC/R0: Profiling of the virtual handler updates. /
2931	STAMPROFILE StatR3SyncCR3HandlerVirtualReset; /*< R3: Profiling of the virtual handler resets. /
2932	STAMPROFILE StatR3SyncCR3HandlerVirtualUpdate; /*< R3: Profiling of the virtual handler updates. /
2933	STAMCOUNTER StatR3PhysHandlerReset; /*< R3: The number of times PGMHandlerPhysicalReset is called. /
2934	STAMCOUNTER StatRZPhysHandlerReset; /*< RC/R0: The number of times PGMHandlerPhysicalReset is called. /
2935	STAMCOUNTER StatR3PhysHandlerLookupHits; /*< R3: Number of cache hits when looking up physical handlers. /
2936	STAMCOUNTER StatR3PhysHandlerLookupMisses; /*< R3: Number of cache misses when looking up physical handlers. /
2937	STAMCOUNTER StatRZPhysHandlerLookupHits; /*< RC/R0: Number of cache hits when lookup up physical handlers. /
2938	STAMCOUNTER StatRZPhysHandlerLookupMisses; /*< RC/R0: Number of cache misses when looking up physical handlers /
2939	STAMPROFILE StatRZVirtHandlerSearchByPhys; /*< RC/R0: Profiling of pgmHandlerVirtualFindByPhysAddr. /
2940	STAMPROFILE StatR3VirtHandlerSearchByPhys; /*< R3: Profiling of pgmHandlerVirtualFindByPhysAddr. /
2941	STAMCOUNTER StatRZPageReplaceShared; /*< RC/R0: Times a shared page has been replaced by a private one. /
2942	STAMCOUNTER StatRZPageReplaceZero; /*< RC/R0: Times the zero page has been replaced by a private one. /
2943	/// @todo STAMCOUNTER StatRZPageHandyAllocs; /*< RC/R0: The number of times we've executed GMMR3AllocateHandyPages. /
2944	STAMCOUNTER StatR3PageReplaceShared; /*< R3: Times a shared page has been replaced by a private one. /
2945	STAMCOUNTER StatR3PageReplaceZero; /*< R3: Times the zero page has been replaced by a private one. /
2946	/// @todo STAMCOUNTER StatR3PageHandyAllocs; /*< R3: The number of times we've executed GMMR3AllocateHandyPages. /
2947
2948	/* RC only: */
2949	STAMCOUNTER StatRCInvlPgConflict; /*< RC: Number of times PGMInvalidatePage() detected a mapping conflict. /
2950	STAMCOUNTER StatRCInvlPgSyncMonCR3; /*< RC: Number of times PGMInvalidatePage() ran into PGM_SYNC_MONITOR_CR3. /
2951
2952	STAMCOUNTER StatRZPhysRead;
2953	STAMCOUNTER StatRZPhysReadBytes;
2954	STAMCOUNTER StatRZPhysWrite;
2955	STAMCOUNTER StatRZPhysWriteBytes;
2956	STAMCOUNTER StatR3PhysRead;
2957	STAMCOUNTER StatR3PhysReadBytes;
2958	STAMCOUNTER StatR3PhysWrite;
2959	STAMCOUNTER StatR3PhysWriteBytes;
2960	STAMCOUNTER StatRCPhysRead;
2961	STAMCOUNTER StatRCPhysReadBytes;
2962	STAMCOUNTER StatRCPhysWrite;
2963	STAMCOUNTER StatRCPhysWriteBytes;
2964
2965	STAMCOUNTER StatRZPhysSimpleRead;
2966	STAMCOUNTER StatRZPhysSimpleReadBytes;
2967	STAMCOUNTER StatRZPhysSimpleWrite;
2968	STAMCOUNTER StatRZPhysSimpleWriteBytes;
2969	STAMCOUNTER StatR3PhysSimpleRead;
2970	STAMCOUNTER StatR3PhysSimpleReadBytes;
2971	STAMCOUNTER StatR3PhysSimpleWrite;
2972	STAMCOUNTER StatR3PhysSimpleWriteBytes;
2973	STAMCOUNTER StatRCPhysSimpleRead;
2974	STAMCOUNTER StatRCPhysSimpleReadBytes;
2975	STAMCOUNTER StatRCPhysSimpleWrite;
2976	STAMCOUNTER StatRCPhysSimpleWriteBytes;
2977
2978	STAMCOUNTER StatTrackVirgin; /*< The number of first time shadowings. /
2979	STAMCOUNTER StatTrackAliased; /*< The number of times switching to cRef2, i.e. the page is being shadowed by two PTs. /
2980	STAMCOUNTER StatTrackAliasedMany; /*< The number of times we're tracking using cRef2. /
2981	STAMCOUNTER StatTrackAliasedLots; /*< The number of times we're hitting pages which has overflowed cRef2. /
2982	STAMCOUNTER StatTrackNoExtentsLeft; /*< The number of times the extent list was exhausted. /
2983	STAMCOUNTER StatTrackOverflows; /*< The number of times the extent list grows to long. /
2984	STAMPROFILE StatTrackDeref; /*< Profiling of SyncPageWorkerTrackDeref (expensive). /
2985
2986	/** Time spent by the host OS for large page allocation. */
2987	STAMPROFILE StatAllocLargePage;
2988	/** Time spent clearing the newly allocated large pages. */
2989	STAMPROFILE StatClearLargePage;
2990	/** The number of times allocating a large pages takes more than the allowed period. */
2991	STAMCOUNTER StatLargePageOverflow;
2992	/** pgmPhysIsValidLargePage profiling - R3 */
2993	STAMPROFILE StatR3IsValidLargePage;
2994	/** pgmPhysIsValidLargePage profiling - RZ*/
2995	STAMPROFILE StatRZIsValidLargePage;
2996
2997	STAMPROFILE StatChunkAging;
2998	STAMPROFILE StatChunkFindCandidate;
2999	STAMPROFILE StatChunkUnmap;
3000	STAMPROFILE StatChunkMap;
3001	} PGMSTATS;
3002	#endif /* VBOX_WITH_STATISTICS */
3003
3004
3005	/**
3006	* Converts a PGM pointer into a VM pointer.
3007	* @returns Pointer to the VM structure the PGM is part of.
3008	* @param pPGM Pointer to PGM instance data.
3009	*/
3010	#define PGM2VM(pPGM) ( (PVM)((char*)pPGM - pPGM->offVM) )
3011
3012	/**
3013	* PGM Data (part of VM)
3014	*/
3015	typedef struct PGM
3016	{
3017	/** Offset to the VM structure. */
3018	int32_t offVM;
3019	/** Offset of the PGMCPU structure relative to VMCPU. */
3020	int32_t offVCpuPGM;
3021
3022	/** @cfgm{RamPreAlloc, boolean, false}
3023	* Indicates whether the base RAM should all be allocated before starting
3024	* the VM (default), or if it should be allocated when first written to.
3025	*/
3026	bool fRamPreAlloc;
3027	/** Indicates whether write monitoring is currently in use.
3028	* This is used to prevent conflicts between live saving and page sharing
3029	* detection. */
3030	bool fPhysWriteMonitoringEngaged;
3031	/** Set if the CPU has less than 52-bit physical address width.
3032	* This is used */
3033	bool fLessThan52PhysicalAddressBits;
3034	/** Set when nested paging is active.
3035	* This is meant to save calls to HMIsNestedPagingActive and let the
3036	* compilers optimize the code better. Whether we use nested paging or
3037	* not is something we find out during VMM initialization and we won't
3038	* change this later on. */
3039	bool fNestedPaging;
3040	/** The host paging mode. (This is what SUPLib reports.) */
3041	SUPPAGINGMODE enmHostMode;
3042	/** We're not in a state which permits writes to guest memory.
3043	* (Only used in strict builds.) */
3044	bool fNoMorePhysWrites;
3045	/** Set if PCI passthrough is enabled. */
3046	bool fPciPassthrough;
3047	/** Alignment padding that makes the next member start on a 8 byte boundary. */
3048	bool afAlignment1[3];
3049
3050	/** Indicates that PGMR3FinalizeMappings has been called and that further
3051	* PGMR3MapIntermediate calls will be rejected. */
3052	bool fFinalizedMappings;
3053	/** If set no conflict checks are required. */
3054	bool fMappingsFixed;
3055	/** If set if restored as fixed but we were unable to re-fixate at the old
3056	* location because of room or address incompatibilities. */
3057	bool fMappingsFixedRestored;
3058	/** Size of fixed mapping.
3059	* This is valid if either fMappingsFixed or fMappingsFixedRestored is set. */
3060	uint32_t cbMappingFixed;
3061	/** Generation ID for the RAM ranges. This member is incremented everytime
3062	* a RAM range is linked or unlinked. */
3063	uint32_t volatile idRamRangesGen;
3064
3065	/** Base address (GC) of fixed mapping.
3066	* This is valid if either fMappingsFixed or fMappingsFixedRestored is set. */
3067	RTGCPTR GCPtrMappingFixed;
3068	/** The address of the previous RAM range mapping. */
3069	RTGCPTR GCPtrPrevRamRangeMapping;
3070
3071	/** 4 MB page mask; 32 or 36 bits depending on PSE-36 (identical for all VCPUs) */
3072	RTGCPHYS GCPhys4MBPSEMask;
3073	/** Mask containing the invalid bits of a guest physical address.
3074	* @remarks this does not stop at bit 52. */
3075	RTGCPHYS GCPhysInvAddrMask;
3076
3077
3078	/** RAM range TLB for R3. */
3079	R3PTRTYPE(PPGMRAMRANGE) apRamRangesTlbR3[PGM_RAMRANGE_TLB_ENTRIES];
3080	/** Pointer to the list of RAM ranges (Phys GC -> Phys HC conversion) - for R3.
3081	* This is sorted by physical address and contains no overlapping ranges. */
3082	R3PTRTYPE(PPGMRAMRANGE) pRamRangesXR3;
3083	/** Root of the RAM range search tree for ring-3. */
3084	R3PTRTYPE(PPGMRAMRANGE) pRamRangeTreeR3;
3085	/** PGM offset based trees - R3 Ptr. */
3086	R3PTRTYPE(PPGMTREES) pTreesR3;
3087	/** Caching the last physical handler we looked up in R3. */
3088	R3PTRTYPE(PPGMPHYSHANDLER) pLastPhysHandlerR3;
3089	/** Shadow Page Pool - R3 Ptr. */
3090	R3PTRTYPE(PPGMPOOL) pPoolR3;
3091	/** Linked list of GC mappings - for HC.
3092	* The list is sorted ascending on address. */
3093	R3PTRTYPE(PPGMMAPPING) pMappingsR3;
3094	/** Pointer to the list of ROM ranges - for R3.
3095	* This is sorted by physical address and contains no overlapping ranges. */
3096	R3PTRTYPE(PPGMROMRANGE) pRomRangesR3;
3097	/** Pointer to the list of MMIO2 ranges - for R3.
3098	* Registration order. */
3099	R3PTRTYPE(PPGMMMIO2RANGE) pMmio2RangesR3;
3100	/** Pointer to SHW+GST mode data (function pointers).
3101	* The index into this table is made up from */
3102	R3PTRTYPE(PPGMMODEDATA) paModeData;
3103	RTR3PTR R3PtrAlignment0;
3104
3105	/** RAM range TLB for R0. */
3106	R0PTRTYPE(PPGMRAMRANGE) apRamRangesTlbR0[PGM_RAMRANGE_TLB_ENTRIES];
3107	/** R0 pointer corresponding to PGM::pRamRangesXR3. */
3108	R0PTRTYPE(PPGMRAMRANGE) pRamRangesXR0;
3109	/** Root of the RAM range search tree for ring-0. */
3110	R0PTRTYPE(PPGMRAMRANGE) pRamRangeTreeR0;
3111	/** PGM offset based trees - R0 Ptr. */
3112	R0PTRTYPE(PPGMTREES) pTreesR0;
3113	/** Caching the last physical handler we looked up in R0. */
3114	R0PTRTYPE(PPGMPHYSHANDLER) pLastPhysHandlerR0;
3115	/** Shadow Page Pool - R0 Ptr. */
3116	R0PTRTYPE(PPGMPOOL) pPoolR0;
3117	/** Linked list of GC mappings - for R0.
3118	* The list is sorted ascending on address. */
3119	R0PTRTYPE(PPGMMAPPING) pMappingsR0;
3120	/** R0 pointer corresponding to PGM::pRomRangesR3. */
3121	R0PTRTYPE(PPGMROMRANGE) pRomRangesR0;
3122	RTR0PTR R0PtrAlignment0;
3123
3124
3125	/** RAM range TLB for RC. */
3126	RCPTRTYPE(PPGMRAMRANGE) apRamRangesTlbRC[PGM_RAMRANGE_TLB_ENTRIES];
3127	/** RC pointer corresponding to PGM::pRamRangesXR3. */
3128	RCPTRTYPE(PPGMRAMRANGE) pRamRangesXRC;
3129	/** Root of the RAM range search tree for raw-mode context. */
3130	RCPTRTYPE(PPGMRAMRANGE) pRamRangeTreeRC;
3131	/** PGM offset based trees - RC Ptr. */
3132	RCPTRTYPE(PPGMTREES) pTreesRC;
3133	/** Caching the last physical handler we looked up in RC. */
3134	RCPTRTYPE(PPGMPHYSHANDLER) pLastPhysHandlerRC;
3135	/** Shadow Page Pool - RC Ptr. */
3136	RCPTRTYPE(PPGMPOOL) pPoolRC;
3137	/** Linked list of GC mappings - for RC.
3138	* The list is sorted ascending on address. */
3139	RCPTRTYPE(PPGMMAPPING) pMappingsRC;
3140	/** RC pointer corresponding to PGM::pRomRangesR3. */
3141	RCPTRTYPE(PPGMROMRANGE) pRomRangesRC;
3142	RTRCPTR RCPtrAlignment0;
3143	/** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
3144	RCPTRTYPE(PX86PTE) paDynPageMap32BitPTEsGC;
3145	/** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
3146	RCPTRTYPE(PPGMSHWPTEPAE) paDynPageMapPaePTEsGC;
3147
3148
3149	/** Pointer to the 5 page CR3 content mapping.
3150	* The first page is always the CR3 (in some form) while the 4 other pages
3151	* are used of the PDs in PAE mode. */
3152	RTGCPTR GCPtrCR3Mapping;
3153
3154	/** @name Intermediate Context
3155	* @{ */
3156	/** Pointer to the intermediate page directory - Normal. */
3157	R3PTRTYPE(PX86PD) pInterPD;
3158	/** Pointer to the intermediate page tables - Normal.
3159	* There are two page tables, one for the identity mapping and one for
3160	* the host context mapping (of the core code). */
3161	R3PTRTYPE(PX86PT) apInterPTs[2];
3162	/** Pointer to the intermediate page tables - PAE. */
3163	R3PTRTYPE(PX86PTPAE) apInterPaePTs[2];
3164	/** Pointer to the intermediate page directory - PAE. */
3165	R3PTRTYPE(PX86PDPAE) apInterPaePDs[4];
3166	/** Pointer to the intermediate page directory - PAE. */
3167	R3PTRTYPE(PX86PDPT) pInterPaePDPT;
3168	/** Pointer to the intermediate page-map level 4 - AMD64. */
3169	R3PTRTYPE(PX86PML4) pInterPaePML4;
3170	/** Pointer to the intermediate page directory - AMD64. */
3171	R3PTRTYPE(PX86PDPT) pInterPaePDPT64;
3172	/** The Physical Address (HC) of the intermediate Page Directory - Normal. */
3173	RTHCPHYS HCPhysInterPD;
3174	/** The Physical Address (HC) of the intermediate Page Directory Pointer Table - PAE. */
3175	RTHCPHYS HCPhysInterPaePDPT;
3176	/** The Physical Address (HC) of the intermediate Page Map Level 4 table - AMD64. */
3177	RTHCPHYS HCPhysInterPaePML4;
3178	/** @} */
3179
3180	/** Base address of the dynamic page mapping area.
3181	* The array is MM_HYPER_DYNAMIC_SIZE bytes big.
3182	*
3183	* @todo The plan of keeping PGMRCDYNMAP private to PGMRZDynMap.cpp didn't
3184	* work out. Some cleaning up of the initialization that would
3185	* remove this memory is yet to be done...
3186	*/
3187	RCPTRTYPE(uint8_t *) pbDynPageMapBaseGC;
3188	/** The address of the raw-mode context mapping cache. */
3189	RCPTRTYPE(PPGMRCDYNMAP) pRCDynMap;
3190	/** The address of the ring-0 mapping cache if we're making use of it. */
3191	RTR0PTR pvR0DynMapUsed;
3192
3193	/** Hack: Number of deprecated page mapping locks taken by the current lock
3194	* owner via pgmPhysGCPhys2CCPtrInternalDepr. */
3195	uint32_t cDeprecatedPageLocks;
3196	#if HC_ARCH_BITS == 64
3197	/** Alignment padding. */
3198	uint32_t u32Alignment2;
3199	#endif
3200
3201
3202	/** PGM critical section.
3203	* This protects the physical & virtual access handlers, ram ranges,
3204	* and the page flag updating (some of it anyway).
3205	*/
3206	PDMCRITSECT CritSectX;
3207
3208	/**
3209	* Data associated with managing the ring-3 mappings of the allocation chunks.
3210	*/
3211	struct
3212	{
3213	/** The chunk tree, ordered by chunk id. */
3214	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
3215	R3PTRTYPE(PAVLU32NODECORE) pTree;
3216	#else
3217	R3R0PTRTYPE(PAVLU32NODECORE) pTree;
3218	#endif
3219	#if HC_ARCH_BITS == 32
3220	uint32_t u32Alignment0;
3221	#endif
3222	/** The chunk mapping TLB. */
3223	PGMCHUNKR3MAPTLB Tlb;
3224	/** The number of mapped chunks. */
3225	uint32_t c;
3226	/** The maximum number of mapped chunks.
3227	* @cfgm PGM/MaxRing3Chunks */
3228	uint32_t cMax;
3229	/** The current time. This is incremented whenever a chunk is inserted. */
3230	uint32_t iNow;
3231	/** Alignment padding. */
3232	uint32_t u32Alignment1;
3233	} ChunkR3Map;
3234
3235	/**
3236	* The page mapping TLB for ring-3 and (for the time being) ring-0.
3237	*/
3238	PGMPAGER3MAPTLB PhysTlbHC;
3239
3240	/** @name The zero page.
3241	* @{ */
3242	/** The host physical address of the zero page. */
3243	RTHCPHYS HCPhysZeroPg;
3244	/** The ring-3 mapping of the zero page. */
3245	RTR3PTR pvZeroPgR3;
3246	/** The ring-0 mapping of the zero page. */
3247	RTR0PTR pvZeroPgR0;
3248	/** The GC mapping of the zero page. */
3249	RTRCPTR pvZeroPgRC;
3250	RTRCPTR RCPtrAlignment3;
3251	/** @}*/
3252
3253	/** @name The Invalid MMIO page.
3254	* This page is filled with 0xfeedface.
3255	* @{ */
3256	/** The host physical address of the invalid MMIO page. */
3257	RTHCPHYS HCPhysMmioPg;
3258	/** The host pysical address of the invalid MMIO page plus all invalid
3259	* physical address bits set. This is used to trigger X86_TRAP_PF_RSVD.
3260	* @remarks Check fLessThan52PhysicalAddressBits before use. */
3261	RTHCPHYS HCPhysInvMmioPg;
3262	/** The ring-3 mapping of the invalid MMIO page. */
3263	RTR3PTR pvMmioPgR3;
3264	#if HC_ARCH_BITS == 32
3265	RTR3PTR R3PtrAlignment4;
3266	#endif
3267	/** @} */
3268
3269
3270	/** The number of handy pages. */
3271	uint32_t cHandyPages;
3272
3273	/** The number of large handy pages. */
3274	uint32_t cLargeHandyPages;
3275
3276	/**
3277	* Array of handy pages.
3278	*
3279	* This array is used in a two way communication between pgmPhysAllocPage
3280	* and GMMR0AllocateHandyPages, with PGMR3PhysAllocateHandyPages serving as
3281	* an intermediary.
3282	*
3283	* The size of this array is important, see pgmPhysEnsureHandyPage for details.
3284	* (The current size of 32 pages, means 128 KB of handy memory.)
3285	*/
3286	GMMPAGEDESC aHandyPages[PGM_HANDY_PAGES];
3287
3288	/**
3289	* Array of large handy pages. (currently size 1)
3290	*
3291	* This array is used in a two way communication between pgmPhysAllocLargePage
3292	* and GMMR0AllocateLargePage, with PGMR3PhysAllocateLargePage serving as
3293	* an intermediary.
3294	*/
3295	GMMPAGEDESC aLargeHandyPage[1];
3296
3297	/**
3298	* Live save data.
3299	*/
3300	struct
3301	{
3302	/** Per type statistics. */
3303	struct
3304	{
3305	/** The number of ready pages. */
3306	uint32_t cReadyPages;
3307	/** The number of dirty pages. */
3308	uint32_t cDirtyPages;
3309	/** The number of ready zero pages. */
3310	uint32_t cZeroPages;
3311	/** The number of write monitored pages. */
3312	uint32_t cMonitoredPages;
3313	} Rom,
3314	Mmio2,
3315	Ram;
3316	/** The number of ignored pages in the RAM ranges (i.e. MMIO, MMIO2 and ROM). */
3317	uint32_t cIgnoredPages;
3318	/** Indicates that a live save operation is active. */
3319	bool fActive;
3320	/** Padding. */
3321	bool afReserved[2];
3322	/** The next history index. */
3323	uint8_t iDirtyPagesHistory;
3324	/** History of the total amount of dirty pages. */
3325	uint32_t acDirtyPagesHistory[64];
3326	/** Short term dirty page average. */
3327	uint32_t cDirtyPagesShort;
3328	/** Long term dirty page average. */
3329	uint32_t cDirtyPagesLong;
3330	/** The number of saved pages. This is used to get some kind of estimate of the
3331	* link speed so we can decide when we're done. It is reset after the first
3332	* 7 passes so the speed estimate doesn't get inflated by the initial set of
3333	* zero pages. */
3334	uint64_t cSavedPages;
3335	/** The nanosecond timestamp when cSavedPages was 0. */
3336	uint64_t uSaveStartNS;
3337	/** Pages per second (for statistics). */
3338	uint32_t cPagesPerSecond;
3339	uint32_t cAlignment;
3340	} LiveSave;
3341
3342	/** @name Error injection.
3343	* @{ */
3344	/** Inject handy page allocation errors pretending we're completely out of
3345	* memory. */
3346	bool volatile fErrInjHandyPages;
3347	/** Padding. */
3348	bool afReserved[3];
3349	/** @} */
3350
3351	/** @name Release Statistics
3352	* @{ */
3353	uint32_t cAllPages; /*< The total number of pages. (Should be Private + Shared + Zero + Pure MMIO.) /
3354	uint32_t cPrivatePages; /*< The number of private pages. /
3355	uint32_t cSharedPages; /*< The number of shared pages. /
3356	uint32_t cReusedSharedPages; /*< The number of reused shared pages. /
3357	uint32_t cZeroPages; /*< The number of zero backed pages. /
3358	uint32_t cPureMmioPages; /*< The number of pure MMIO pages. /
3359	uint32_t cMonitoredPages; /*< The number of write monitored pages. /
3360	uint32_t cWrittenToPages; /*< The number of previously write monitored pages. /
3361	uint32_t cWriteLockedPages; /*< The number of write locked pages. /
3362	uint32_t cReadLockedPages; /*< The number of read locked pages. /
3363	uint32_t cBalloonedPages; /*< The number of ballooned pages. /
3364	uint32_t cMappedChunks; /*< Number of times we mapped a chunk. /
3365	uint32_t cUnmappedChunks; /*< Number of times we unmapped a chunk. /
3366	uint32_t cLargePages; /*< The number of large pages. /
3367	uint32_t cLargePagesDisabled; /*< The number of disabled large pages. /
3368	/* uint32_t aAlignment4[1]; */
3369
3370	/** The number of times we were forced to change the hypervisor region location. */
3371	STAMCOUNTER cRelocations;
3372
3373	STAMCOUNTER StatLargePageReused; /*< The number of large pages we've reused./
3374	STAMCOUNTER StatLargePageRefused; /*< The number of times we couldn't use a large page./
3375	STAMCOUNTER StatLargePageRecheck; /*< The number of times we rechecked a disabled large page./
3376
3377	STAMPROFILE StatShModCheck; /*< Profiles shared module checks. /
3378	/** @} */
3379
3380	#ifdef VBOX_WITH_STATISTICS
3381	/** @name Statistics on the heap.
3382	* @{ */
3383	R3PTRTYPE(PGMSTATS *) pStatsR3;
3384	R0PTRTYPE(PGMSTATS *) pStatsR0;
3385	RCPTRTYPE(PGMSTATS *) pStatsRC;
3386	RTRCPTR RCPtrAlignment;
3387	/** @} */
3388	#endif
3389	} PGM;
3390	#ifndef IN_TSTVMSTRUCTGC /* HACK */
3391	AssertCompileMemberAlignment(PGM, paDynPageMap32BitPTEsGC, 8);
3392	AssertCompileMemberAlignment(PGM, GCPtrMappingFixed, sizeof(RTGCPTR));
3393	AssertCompileMemberAlignment(PGM, HCPhysInterPD, 8);
3394	AssertCompileMemberAlignment(PGM, CritSectX, 8);
3395	AssertCompileMemberAlignment(PGM, ChunkR3Map, 8);
3396	AssertCompileMemberAlignment(PGM, PhysTlbHC, 8);
3397	AssertCompileMemberAlignment(PGM, HCPhysZeroPg, 8);
3398	AssertCompileMemberAlignment(PGM, aHandyPages, 8);
3399	AssertCompileMemberAlignment(PGM, cRelocations, 8);
3400	#endif /* !IN_TSTVMSTRUCTGC */
3401	/** Pointer to the PGM instance data. */
3402	typedef PGM *PPGM;
3403
3404
3405
3406	typedef struct PGMCPUSTATS
3407	{
3408	/* Common */
3409	STAMCOUNTER StatSyncPtPD[X86_PG_ENTRIES]; /*< SyncPT - PD distribution. /
3410	STAMCOUNTER StatSyncPagePD[X86_PG_ENTRIES]; /*< SyncPage - PD distribution. /
3411
3412	/* R0 only: */
3413	STAMPROFILE StatR0NpMiscfg; /*< R0: PGMR0Trap0eHandlerNPMisconfig() profiling. /
3414	STAMCOUNTER StatR0NpMiscfgSyncPage; /*< R0: SyncPage calls from PGMR0Trap0eHandlerNPMisconfig(). /
3415
3416	/* RZ only: */
3417	STAMPROFILE StatRZTrap0e; /*< RC/R0: PGMTrap0eHandler() profiling. /
3418	STAMPROFILE StatRZTrap0eTime2Ballooned; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is read access to a ballooned page. /
3419	STAMPROFILE StatRZTrap0eTime2CSAM; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is CSAM. /
3420	STAMPROFILE StatRZTrap0eTime2DirtyAndAccessed; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation. /
3421	STAMPROFILE StatRZTrap0eTime2GuestTrap; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is a guest trap. /
3422	STAMPROFILE StatRZTrap0eTime2HndPhys; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is a physical handler. /
3423	STAMPROFILE StatRZTrap0eTime2HndVirt; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is a virtual handler. /
3424	STAMPROFILE StatRZTrap0eTime2HndUnhandled; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page. /
3425	STAMPROFILE StatRZTrap0eTime2InvalidPhys; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is access to an invalid physical guest address. /
3426	STAMPROFILE StatRZTrap0eTime2MakeWritable; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is a page that needed to be made writable. /
3427	STAMPROFILE StatRZTrap0eTime2Mapping; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is the guest mappings. /
3428	STAMPROFILE StatRZTrap0eTime2Misc; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is not known. /
3429	STAMPROFILE StatRZTrap0eTime2OutOfSync; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync page. /
3430	STAMPROFILE StatRZTrap0eTime2OutOfSyncHndPhys; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page. /
3431	STAMPROFILE StatRZTrap0eTime2OutOfSyncHndVirt; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page. /
3432	STAMPROFILE StatRZTrap0eTime2OutOfSyncHndObs; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is an obsolete handler page. /
3433	STAMPROFILE StatRZTrap0eTime2SyncPT; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT. /
3434	STAMPROFILE StatRZTrap0eTime2WPEmulation; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is CR0.WP emulation. /
3435	STAMPROFILE StatRZTrap0eTime2Wp0RoUsHack; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is CR0.WP and netware hack to be enabled. /
3436	STAMPROFILE StatRZTrap0eTime2Wp0RoUsUnhack; /*< RC/R0: Profiling of the Trap0eHandler body when the cause is CR0.WP and netware hack to be disabled. /
3437	STAMCOUNTER StatRZTrap0eConflicts; /*< RC/R0: The number of times \#PF was caused by an undetected conflict. /
3438	STAMCOUNTER StatRZTrap0eHandlersMapping; /*< RC/R0: Number of traps due to access handlers in mappings. /
3439	STAMCOUNTER StatRZTrap0eHandlersOutOfSync; /*< RC/R0: Number of out-of-sync handled pages. /
3440	STAMCOUNTER StatRZTrap0eHandlersPhysAll; /*< RC/R0: Number of traps due to physical all-access handlers. /
3441	STAMCOUNTER StatRZTrap0eHandlersPhysAllOpt; /*< RC/R0: Number of the physical all-access handler traps using the optimization. /
3442	STAMCOUNTER StatRZTrap0eHandlersPhysWrite; /*< RC/R0: Number of traps due to write-physical access handlers. /
3443	STAMCOUNTER StatRZTrap0eHandlersVirtual; /*< RC/R0: Number of traps due to virtual access handlers. /
3444	STAMCOUNTER StatRZTrap0eHandlersVirtualByPhys; /*< RC/R0: Number of traps due to virtual access handlers found by physical address. /
3445	STAMCOUNTER StatRZTrap0eHandlersVirtualUnmarked;/*< RC/R0: Number of traps due to virtual access handlers found by virtual address (without proper physical flags). /
3446	STAMCOUNTER StatRZTrap0eHandlersUnhandled; /*< RC/R0: Number of traps due to access outside range of monitored page(s). /
3447	STAMCOUNTER StatRZTrap0eHandlersInvalid; /*< RC/R0: Number of traps due to access to invalid physical memory. /
3448	STAMCOUNTER StatRZTrap0eUSNotPresentRead; /*< RC/R0: \#PF err kind /
3449	STAMCOUNTER StatRZTrap0eUSNotPresentWrite; /*< RC/R0: \#PF err kind /
3450	STAMCOUNTER StatRZTrap0eUSWrite; /*< RC/R0: \#PF err kind /
3451	STAMCOUNTER StatRZTrap0eUSReserved; /*< RC/R0: \#PF err kind /
3452	STAMCOUNTER StatRZTrap0eUSNXE; /*< RC/R0: \#PF err kind /
3453	STAMCOUNTER StatRZTrap0eUSRead; /*< RC/R0: \#PF err kind /
3454	STAMCOUNTER StatRZTrap0eSVNotPresentRead; /*< RC/R0: \#PF err kind /
3455	STAMCOUNTER StatRZTrap0eSVNotPresentWrite; /*< RC/R0: \#PF err kind /
3456	STAMCOUNTER StatRZTrap0eSVWrite; /*< RC/R0: \#PF err kind /
3457	STAMCOUNTER StatRZTrap0eSVReserved; /*< RC/R0: \#PF err kind /
3458	STAMCOUNTER StatRZTrap0eSNXE; /*< RC/R0: \#PF err kind /
3459	STAMCOUNTER StatRZTrap0eGuestPF; /*< RC/R0: Real guest \#PFs. /
3460	STAMCOUNTER StatRZTrap0eGuestPFMapping; /*< RC/R0: Real guest \#PF to HMA or other mapping. /
3461	STAMCOUNTER StatRZTrap0eWPEmulInRZ; /*< RC/R0: WP=0 virtualization trap, handled. /
3462	STAMCOUNTER StatRZTrap0eWPEmulToR3; /*< RC/R0: WP=0 virtualization trap, chickened out. /
3463	STAMCOUNTER StatRZTrap0ePD[X86_PG_ENTRIES]; /*< RC/R0: PD distribution of the \#PFs. /
3464	STAMCOUNTER StatRZGuestCR3WriteHandled; /*< RC/R0: The number of times WriteHandlerCR3() was successfully called. /
3465	STAMCOUNTER StatRZGuestCR3WriteUnhandled; /*< RC/R0: The number of times WriteHandlerCR3() was called and we had to fall back to the recompiler. /
3466	STAMCOUNTER StatRZGuestCR3WriteConflict; /*< RC/R0: The number of times WriteHandlerCR3() was called and a conflict was detected. /
3467	STAMCOUNTER StatRZGuestROMWriteHandled; /*< RC/R0: The number of times pgmPhysRomWriteHandler() was successfully called. /
3468	STAMCOUNTER StatRZGuestROMWriteUnhandled; /*< RC/R0: The number of times pgmPhysRomWriteHandler() was called and we had to fall back to the recompiler /
3469	STAMCOUNTER StatRZDynMapMigrateInvlPg; /*< RZ: invlpg in PGMR0DynMapMigrateAutoSet. /
3470	STAMPROFILE StatRZDynMapGCPageInl; /*< RZ: Calls to pgmRZDynMapGCPageInlined. /
3471	STAMCOUNTER StatRZDynMapGCPageInlHits; /*< RZ: Hash table lookup hits. /
3472	STAMCOUNTER StatRZDynMapGCPageInlMisses; /*< RZ: Misses that falls back to the code common. /
3473	STAMCOUNTER StatRZDynMapGCPageInlRamHits; /*< RZ: 1st ram range hits. /
3474	STAMCOUNTER StatRZDynMapGCPageInlRamMisses; /*< RZ: 1st ram range misses, takes slow path. /
3475	STAMPROFILE StatRZDynMapHCPageInl; /*< RZ: Calls to pgmRZDynMapHCPageInlined. /
3476	STAMCOUNTER StatRZDynMapHCPageInlHits; /*< RZ: Hash table lookup hits. /
3477	STAMCOUNTER StatRZDynMapHCPageInlMisses; /*< RZ: Misses that falls back to the code common. /
3478	STAMPROFILE StatRZDynMapHCPage; /*< RZ: Calls to pgmRZDynMapHCPageCommon. /
3479	STAMCOUNTER StatRZDynMapSetOptimize; /*< RZ: Calls to pgmRZDynMapOptimizeAutoSet. /
3480	STAMCOUNTER StatRZDynMapSetSearchFlushes; /*< RZ: Set search restoring to subset flushes. /
3481	STAMCOUNTER StatRZDynMapSetSearchHits; /*< RZ: Set search hits. /
3482	STAMCOUNTER StatRZDynMapSetSearchMisses; /*< RZ: Set search misses. /
3483	STAMCOUNTER StatRZDynMapPage; /*< RZ: Calls to pgmR0DynMapPage. /
3484	STAMCOUNTER StatRZDynMapPageHits0; /*< RZ: Hits at iPage+0. /
3485	STAMCOUNTER StatRZDynMapPageHits1; /*< RZ: Hits at iPage+1. /
3486	STAMCOUNTER StatRZDynMapPageHits2; /*< RZ: Hits at iPage+2. /
3487	STAMCOUNTER StatRZDynMapPageInvlPg; /*< RZ: invlpg. /
3488	STAMCOUNTER StatRZDynMapPageSlow; /*< RZ: Calls to pgmR0DynMapPageSlow. /
3489	STAMCOUNTER StatRZDynMapPageSlowLoopHits; /*< RZ: Hits in the pgmR0DynMapPageSlow search loop. /
3490	STAMCOUNTER StatRZDynMapPageSlowLoopMisses; /*< RZ: Misses in the pgmR0DynMapPageSlow search loop. /
3491	//STAMCOUNTER StatRZDynMapPageSlowLostHits; /*< RZ: Lost hits. /
3492	STAMCOUNTER StatRZDynMapSubsets; /*< RZ: Times PGMDynMapPushAutoSubset was called. /
3493	STAMCOUNTER StatRZDynMapPopFlushes; /*< RZ: Times PGMDynMapPopAutoSubset flushes the subset. /
3494	STAMCOUNTER aStatRZDynMapSetFilledPct[11]; /*< RZ: Set fill distribution, percent. /
3495
3496	/* HC - R3 and (maybe) R0: */
3497
3498	/* RZ & R3: */
3499	STAMPROFILE StatRZSyncCR3; /*< RC/R0: PGMSyncCR3() profiling. /
3500	STAMPROFILE StatRZSyncCR3Handlers; /*< RC/R0: Profiling of the PGMSyncCR3() update handler section. /
3501	STAMCOUNTER StatRZSyncCR3Global; /*< RC/R0: The number of global CR3 syncs. /
3502	STAMCOUNTER StatRZSyncCR3NotGlobal; /*< RC/R0: The number of non-global CR3 syncs. /
3503	STAMCOUNTER StatRZSyncCR3DstCacheHit; /*< RC/R0: The number of times we got some kind of cache hit on a page table. /
3504	STAMCOUNTER StatRZSyncCR3DstFreed; /*< RC/R0: The number of times we've had to free a shadow entry. /
3505	STAMCOUNTER StatRZSyncCR3DstFreedSrcNP; /*< RC/R0: The number of times we've had to free a shadow entry for which the source entry was not present. /
3506	STAMCOUNTER StatRZSyncCR3DstNotPresent; /*< RC/R0: The number of times we've encountered a not present shadow entry for a present guest entry. /
3507	STAMCOUNTER StatRZSyncCR3DstSkippedGlobalPD; /*< RC/R0: The number of times a global page directory wasn't flushed. /
3508	STAMCOUNTER StatRZSyncCR3DstSkippedGlobalPT; /*< RC/R0: The number of times a page table with only global entries wasn't flushed. /
3509	STAMPROFILE StatRZSyncPT; /*< RC/R0: PGMSyncPT() profiling. /
3510	STAMCOUNTER StatRZSyncPTFailed; /*< RC/R0: The number of times PGMSyncPT() failed. /
3511	STAMCOUNTER StatRZSyncPT4K; /*< RC/R0: Number of 4KB syncs. /
3512	STAMCOUNTER StatRZSyncPT4M; /*< RC/R0: Number of 4MB syncs. /
3513	STAMCOUNTER StatRZSyncPagePDNAs; /*< RC/R0: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. /
3514	STAMCOUNTER StatRZSyncPagePDOutOfSync; /*< RC/R0: The number of time we've encountered an out-of-sync PD in SyncPage. /
3515	STAMCOUNTER StatRZAccessedPage; /*< RC/R0: The number of pages marked not present for accessed bit emulation. /
3516	STAMPROFILE StatRZDirtyBitTracking; /*< RC/R0: Profiling the dirty bit tracking in CheckPageFault().. /
3517	STAMCOUNTER StatRZDirtyPage; /*< RC/R0: The number of pages marked read-only for dirty bit tracking. /
3518	STAMCOUNTER StatRZDirtyPageBig; /*< RC/R0: The number of pages marked read-only for dirty bit tracking. /
3519	STAMCOUNTER StatRZDirtyPageSkipped; /*< RC/R0: The number of pages already dirty or readonly. /
3520	STAMCOUNTER StatRZDirtyPageTrap; /*< RC/R0: The number of traps generated for dirty bit tracking. /
3521	STAMCOUNTER StatRZDirtyPageStale; /*< RC/R0: The number of traps generated for dirty bit tracking. (stale tlb entries) /
3522	STAMCOUNTER StatRZDirtyTrackRealPF; /*< RC/R0: The number of real pages faults during dirty bit tracking. /
3523	STAMCOUNTER StatRZDirtiedPage; /*< RC/R0: The number of pages marked dirty because of write accesses. /
3524	STAMCOUNTER StatRZPageAlreadyDirty; /*< RC/R0: The number of pages already marked dirty because of write accesses. /
3525	STAMPROFILE StatRZInvalidatePage; /*< RC/R0: PGMInvalidatePage() profiling. /
3526	STAMCOUNTER StatRZInvalidatePage4KBPages; /*< RC/R0: The number of times PGMInvalidatePage() was called for a 4KB page. /
3527	STAMCOUNTER StatRZInvalidatePage4MBPages; /*< RC/R0: The number of times PGMInvalidatePage() was called for a 4MB page. /
3528	STAMCOUNTER StatRZInvalidatePage4MBPagesSkip; /*< RC/R0: The number of times PGMInvalidatePage() skipped a 4MB page. /
3529	STAMCOUNTER StatRZInvalidatePagePDMappings; /*< RC/R0: The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict). /
3530	STAMCOUNTER StatRZInvalidatePagePDNAs; /*< RC/R0: The number of times PGMInvalidatePage() was called for a not accessed page directory. /
3531	STAMCOUNTER StatRZInvalidatePagePDNPs; /*< RC/R0: The number of times PGMInvalidatePage() was called for a not present page directory. /
3532	STAMCOUNTER StatRZInvalidatePagePDOutOfSync; /*< RC/R0: The number of times PGMInvalidatePage() was called for an out of sync page directory. /
3533	STAMCOUNTER StatRZInvalidatePageSkipped; /*< RC/R0: The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. /
3534	STAMCOUNTER StatRZPageOutOfSyncUser; /*< RC/R0: The number of times user page is out of sync was detected in \#PF or VerifyAccessSyncPage. /
3535	STAMCOUNTER StatRZPageOutOfSyncSupervisor; /*< RC/R0: The number of times supervisor page is out of sync was detected in in \#PF or VerifyAccessSyncPage. /
3536	STAMCOUNTER StatRZPageOutOfSyncUserWrite; /*< RC/R0: The number of times user page is out of sync was detected in \#PF. /
3537	STAMCOUNTER StatRZPageOutOfSyncSupervisorWrite; /*< RC/R0: The number of times supervisor page is out of sync was detected in in \#PF. /
3538	STAMCOUNTER StatRZPageOutOfSyncBallloon; /*< RC/R0: The number of times a ballooned page was accessed (read). /
3539	STAMPROFILE StatRZPrefetch; /*< RC/R0: PGMPrefetchPage. /
3540	STAMPROFILE StatRZFlushTLB; /*< RC/R0: Profiling of the PGMFlushTLB() body. /
3541	STAMCOUNTER StatRZFlushTLBNewCR3; /*< RC/R0: The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) /
3542	STAMCOUNTER StatRZFlushTLBNewCR3Global; /*< RC/R0: The number of times PGMFlushTLB was called with a new CR3, global. (switch) /
3543	STAMCOUNTER StatRZFlushTLBSameCR3; /*< RC/R0: The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) /
3544	STAMCOUNTER StatRZFlushTLBSameCR3Global; /*< RC/R0: The number of times PGMFlushTLB was called with the same CR3, global. (flush) /
3545	STAMPROFILE StatRZGstModifyPage; /*< RC/R0: Profiling of the PGMGstModifyPage() body /
3546
3547	STAMPROFILE StatR3SyncCR3; /*< R3: PGMSyncCR3() profiling. /
3548	STAMPROFILE StatR3SyncCR3Handlers; /*< R3: Profiling of the PGMSyncCR3() update handler section. /
3549	STAMCOUNTER StatR3SyncCR3Global; /*< R3: The number of global CR3 syncs. /
3550	STAMCOUNTER StatR3SyncCR3NotGlobal; /*< R3: The number of non-global CR3 syncs. /
3551	STAMCOUNTER StatR3SyncCR3DstFreed; /*< R3: The number of times we've had to free a shadow entry. /
3552	STAMCOUNTER StatR3SyncCR3DstFreedSrcNP; /*< R3: The number of times we've had to free a shadow entry for which the source entry was not present. /
3553	STAMCOUNTER StatR3SyncCR3DstNotPresent; /*< R3: The number of times we've encountered a not present shadow entry for a present guest entry. /
3554	STAMCOUNTER StatR3SyncCR3DstSkippedGlobalPD; /*< R3: The number of times a global page directory wasn't flushed. /
3555	STAMCOUNTER StatR3SyncCR3DstSkippedGlobalPT; /*< R3: The number of times a page table with only global entries wasn't flushed. /
3556	STAMCOUNTER StatR3SyncCR3DstCacheHit; /*< R3: The number of times we got some kind of cache hit on a page table. /
3557	STAMPROFILE StatR3SyncPT; /*< R3: PGMSyncPT() profiling. /
3558	STAMCOUNTER StatR3SyncPTFailed; /*< R3: The number of times PGMSyncPT() failed. /
3559	STAMCOUNTER StatR3SyncPT4K; /*< R3: Number of 4KB syncs. /
3560	STAMCOUNTER StatR3SyncPT4M; /*< R3: Number of 4MB syncs. /
3561	STAMCOUNTER StatR3SyncPagePDNAs; /*< R3: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. /
3562	STAMCOUNTER StatR3SyncPagePDOutOfSync; /*< R3: The number of time we've encountered an out-of-sync PD in SyncPage. /
3563	STAMCOUNTER StatR3AccessedPage; /*< R3: The number of pages marked not present for accessed bit emulation. /
3564	STAMPROFILE StatR3DirtyBitTracking; /*< R3: Profiling the dirty bit tracking in CheckPageFault(). /
3565	STAMCOUNTER StatR3DirtyPage; /*< R3: The number of pages marked read-only for dirty bit tracking. /
3566	STAMCOUNTER StatR3DirtyPageBig; /*< R3: The number of pages marked read-only for dirty bit tracking. /
3567	STAMCOUNTER StatR3DirtyPageSkipped; /*< R3: The number of pages already dirty or readonly. /
3568	STAMCOUNTER StatR3DirtyPageTrap; /*< R3: The number of traps generated for dirty bit tracking. /
3569	STAMCOUNTER StatR3DirtyTrackRealPF; /*< R3: The number of real pages faults during dirty bit tracking. /
3570	STAMCOUNTER StatR3DirtiedPage; /*< R3: The number of pages marked dirty because of write accesses. /
3571	STAMCOUNTER StatR3PageAlreadyDirty; /*< R3: The number of pages already marked dirty because of write accesses. /
3572	STAMPROFILE StatR3InvalidatePage; /*< R3: PGMInvalidatePage() profiling. /
3573	STAMCOUNTER StatR3InvalidatePage4KBPages; /*< R3: The number of times PGMInvalidatePage() was called for a 4KB page. /
3574	STAMCOUNTER StatR3InvalidatePage4MBPages; /*< R3: The number of times PGMInvalidatePage() was called for a 4MB page. /
3575	STAMCOUNTER StatR3InvalidatePage4MBPagesSkip; /*< R3: The number of times PGMInvalidatePage() skipped a 4MB page. /
3576	STAMCOUNTER StatR3InvalidatePagePDNAs; /*< R3: The number of times PGMInvalidatePage() was called for a not accessed page directory. /
3577	STAMCOUNTER StatR3InvalidatePagePDNPs; /*< R3: The number of times PGMInvalidatePage() was called for a not present page directory. /
3578	STAMCOUNTER StatR3InvalidatePagePDMappings; /*< R3: The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict). /
3579	STAMCOUNTER StatR3InvalidatePagePDOutOfSync; /*< R3: The number of times PGMInvalidatePage() was called for an out of sync page directory. /
3580	STAMCOUNTER StatR3InvalidatePageSkipped; /*< R3: The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. /
3581	STAMCOUNTER StatR3PageOutOfSyncUser; /*< R3: The number of times user page is out of sync was detected in \#PF or VerifyAccessSyncPage. /
3582	STAMCOUNTER StatR3PageOutOfSyncSupervisor; /*< R3: The number of times supervisor page is out of sync was detected in in \#PF or VerifyAccessSyncPage. /
3583	STAMCOUNTER StatR3PageOutOfSyncUserWrite; /*< R3: The number of times user page is out of sync was detected in \#PF. /
3584	STAMCOUNTER StatR3PageOutOfSyncSupervisorWrite; /*< R3: The number of times supervisor page is out of sync was detected in in \#PF. /
3585	STAMCOUNTER StatR3PageOutOfSyncBallloon; /*< R3: The number of times a ballooned page was accessed (read). /
3586	STAMPROFILE StatR3Prefetch; /*< R3: PGMPrefetchPage. /
3587	STAMPROFILE StatR3FlushTLB; /*< R3: Profiling of the PGMFlushTLB() body. /
3588	STAMCOUNTER StatR3FlushTLBNewCR3; /*< R3: The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) /
3589	STAMCOUNTER StatR3FlushTLBNewCR3Global; /*< R3: The number of times PGMFlushTLB was called with a new CR3, global. (switch) /
3590	STAMCOUNTER StatR3FlushTLBSameCR3; /*< R3: The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) /
3591	STAMCOUNTER StatR3FlushTLBSameCR3Global; /*< R3: The number of times PGMFlushTLB was called with the same CR3, global. (flush) /
3592	STAMPROFILE StatR3GstModifyPage; /*< R3: Profiling of the PGMGstModifyPage() body /
3593	/** @} */
3594	} PGMCPUSTATS;
3595
3596
3597	/**
3598	* Converts a PGMCPU pointer into a VM pointer.
3599	* @returns Pointer to the VM structure the PGM is part of.
3600	* @param pPGM Pointer to PGMCPU instance data.
3601	*/
3602	#define PGMCPU2VM(pPGM) ( (PVM)((char*)(pPGM) - (pPGM)->offVM) )
3603
3604	/**
3605	* Converts a PGMCPU pointer into a PGM pointer.
3606	* @returns Pointer to the VM structure the PGM is part of.
3607	* @param pPGM Pointer to PGMCPU instance data.
3608	*/
3609	#define PGMCPU2PGM(pPGMCpu) ( (PPGM)((char *)(pPGMCpu) - (pPGMCpu)->offPGM) )
3610
3611	/**
3612	* PGMCPU Data (part of VMCPU).
3613	*/
3614	typedef struct PGMCPU
3615	{
3616	/** Offset to the VM structure. */
3617	int32_t offVM;
3618	/** Offset to the VMCPU structure. */
3619	int32_t offVCpu;
3620	/** Offset of the PGM structure relative to VMCPU. */
3621	int32_t offPGM;
3622	uint32_t uPadding0; /*< structure size alignment. /
3623
3624	#if defined(VBOX_WITH_2X_4GB_ADDR_SPACE) \|\| defined(VBOX_WITH_RAW_MODE)
3625	/** Automatically tracked physical memory mapping set.
3626	* Ring-0 and strict raw-mode builds. */
3627	PGMMAPSET AutoSet;
3628	#endif
3629
3630	/** A20 gate mask.
3631	* Our current approach to A20 emulation is to let REM do it and don't bother
3632	* anywhere else. The interesting Guests will be operating with it enabled anyway.
3633	* But whould need arrise, we'll subject physical addresses to this mask. */
3634	RTGCPHYS GCPhysA20Mask;
3635	/** A20 gate state - boolean! */
3636	bool fA20Enabled;
3637	/** Mirror of the EFER.NXE bit. Managed by PGMNotifyNxeChanged. */
3638	bool fNoExecuteEnabled;
3639	/** Unused bits. */
3640	bool afUnused[2];
3641
3642	/** What needs syncing (PGM_SYNC_*).
3643	* This is used to queue operations for PGMSyncCR3, PGMInvalidatePage,
3644	* PGMFlushTLB, and PGMR3Load. */
3645	uint32_t fSyncFlags;
3646
3647	/** The shadow paging mode. */
3648	PGMMODE enmShadowMode;
3649	/** The guest paging mode. */
3650	PGMMODE enmGuestMode;
3651
3652	/** The current physical address representing in the guest CR3 register. */
3653	RTGCPHYS GCPhysCR3;
3654
3655	/** @name 32-bit Guest Paging.
3656	* @{ */
3657	/** The guest's page directory, R3 pointer. */
3658	R3PTRTYPE(PX86PD) pGst32BitPdR3;
3659	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
3660	/** The guest's page directory, R0 pointer. */
3661	R0PTRTYPE(PX86PD) pGst32BitPdR0;
3662	#endif
3663	/** The guest's page directory, static RC mapping. */
3664	RCPTRTYPE(PX86PD) pGst32BitPdRC;
3665	/** Mask containing the MBZ bits of a big page PDE. */
3666	uint32_t fGst32BitMbzBigPdeMask;
3667	/** Set if the page size extension (PSE) is enabled. */
3668	bool fGst32BitPageSizeExtension;
3669	/** Alignment padding. */
3670	bool afAlignment2[3];
3671	/** @} */
3672
3673	/** @name PAE Guest Paging.
3674	* @{ */
3675	/** The guest's page directory pointer table, static RC mapping. */
3676	RCPTRTYPE(PX86PDPT) pGstPaePdptRC;
3677	/** The guest's page directory pointer table, R3 pointer. */
3678	R3PTRTYPE(PX86PDPT) pGstPaePdptR3;
3679	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
3680	/** The guest's page directory pointer table, R0 pointer. */
3681	R0PTRTYPE(PX86PDPT) pGstPaePdptR0;
3682	#endif
3683
3684	/** The guest's page directories, R3 pointers.
3685	* These are individual pointers and don't have to be adjacent.
3686	* These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
3687	R3PTRTYPE(PX86PDPAE) apGstPaePDsR3[4];
3688	/** The guest's page directories, R0 pointers.
3689	* Same restrictions as apGstPaePDsR3. */
3690	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
3691	R0PTRTYPE(PX86PDPAE) apGstPaePDsR0[4];
3692	#endif
3693	/** The guest's page directories, static GC mapping.
3694	* Unlike the R3/R0 array the first entry can be accessed as a 2048 entry PD.
3695	* These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
3696	RCPTRTYPE(PX86PDPAE) apGstPaePDsRC[4];
3697	/** The physical addresses of the guest page directories (PAE) pointed to by apGstPagePDsHC/GC.
3698	* @todo Remove this and use aGstPaePdpeRegs instead? */
3699	RTGCPHYS aGCPhysGstPaePDs[4];
3700	/** The values of the 4 PDPE CPU registers (PAE). */
3701	X86PDPE aGstPaePdpeRegs[4];
3702	/** The physical addresses of the monitored guest page directories (PAE). */
3703	RTGCPHYS aGCPhysGstPaePDsMonitored[4];
3704	/** Mask containing the MBZ PTE bits. */
3705	uint64_t fGstPaeMbzPteMask;
3706	/** Mask containing the MBZ PDE bits. */
3707	uint64_t fGstPaeMbzPdeMask;
3708	/** Mask containing the MBZ big page PDE bits. */
3709	uint64_t fGstPaeMbzBigPdeMask;
3710	/** Mask containing the MBZ PDPE bits. */
3711	uint64_t fGstPaeMbzPdpeMask;
3712	/** @} */
3713
3714	/** @name AMD64 Guest Paging.
3715	* @{ */
3716	/** The guest's page directory pointer table, R3 pointer. */
3717	R3PTRTYPE(PX86PML4) pGstAmd64Pml4R3;
3718	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
3719	/** The guest's page directory pointer table, R0 pointer. */
3720	R0PTRTYPE(PX86PML4) pGstAmd64Pml4R0;
3721	#else
3722	RTR0PTR alignment6b; /*< alignment equalizer. /
3723	#endif
3724	/** Mask containing the MBZ PTE bits. */
3725	uint64_t fGstAmd64MbzPteMask;
3726	/** Mask containing the MBZ PDE bits. */
3727	uint64_t fGstAmd64MbzPdeMask;
3728	/** Mask containing the MBZ big page PDE bits. */
3729	uint64_t fGstAmd64MbzBigPdeMask;
3730	/** Mask containing the MBZ PDPE bits. */
3731	uint64_t fGstAmd64MbzPdpeMask;
3732	/** Mask containing the MBZ big page PDPE bits. */
3733	uint64_t fGstAmd64MbzBigPdpeMask;
3734	/** Mask containing the MBZ PML4E bits. */
3735	uint64_t fGstAmd64MbzPml4eMask;
3736	/** Mask containing the PDPE bits that we shadow. */
3737	uint64_t fGstAmd64ShadowedPdpeMask;
3738	/** Mask containing the PML4E bits that we shadow. */
3739	uint64_t fGstAmd64ShadowedPml4eMask;
3740	/** @} */
3741
3742	/** @name PAE and AMD64 Guest Paging.
3743	* @{ */
3744	/** Mask containing the PTE bits that we shadow. */
3745	uint64_t fGst64ShadowedPteMask;
3746	/** Mask containing the PDE bits that we shadow. */
3747	uint64_t fGst64ShadowedPdeMask;
3748	/** Mask containing the big page PDE bits that we shadow in the PDE. */
3749	uint64_t fGst64ShadowedBigPdeMask;
3750	/** Mask containing the big page PDE bits that we shadow in the PTE. */
3751	uint64_t fGst64ShadowedBigPde4PteMask;
3752	/** @} */
3753
3754	/** Pointer to the page of the current active CR3 - R3 Ptr. */
3755	R3PTRTYPE(PPGMPOOLPAGE) pShwPageCR3R3;
3756	/** Pointer to the page of the current active CR3 - R0 Ptr. */
3757	R0PTRTYPE(PPGMPOOLPAGE) pShwPageCR3R0;
3758	/** Pointer to the page of the current active CR3 - RC Ptr. */
3759	RCPTRTYPE(PPGMPOOLPAGE) pShwPageCR3RC;
3760	# if HC_ARCH_BITS == 64
3761	RTRCPTR alignment6; /*< structure size alignment. /
3762	# endif
3763	/** @} */
3764
3765	/** @name Function pointers for Shadow paging.
3766	* @{
3767	*/
3768	DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
3769	DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVMCPU pVCpu));
3770	DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
3771	DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask, uint32_t fOpFlags));
3772
3773	DECLRCCALLBACKMEMBER(int, pfnRCShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
3774	DECLRCCALLBACKMEMBER(int, pfnRCShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask, uint32_t fOpFlags));
3775
3776	DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
3777	DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask, uint32_t fOpFlags));
3778
3779	/** @} */
3780
3781	/** @name Function pointers for Guest paging.
3782	* @{
3783	*/
3784	DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
3785	DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVMCPU pVCpu));
3786	DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
3787	DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
3788	DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
3789	DECLRCCALLBACKMEMBER(int, pfnRCGstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
3790	DECLRCCALLBACKMEMBER(int, pfnRCGstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
3791	DECLRCCALLBACKMEMBER(int, pfnRCGstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
3792	#if HC_ARCH_BITS == 64
3793	RTRCPTR alignment3; /*< structure size alignment. /
3794	#endif
3795
3796	DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
3797	DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
3798	DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
3799	/** @} */
3800
3801	/** @name Function pointers for Both Shadow and Guest paging.
3802	* @{
3803	*/
3804	DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
3805	/* no pfnR3BthTrap0eHandler */
3806	DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3807	DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
3808	DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3809	DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
3810	DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
3811	DECLR3CALLBACKMEMBER(int, pfnR3BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
3812	DECLR3CALLBACKMEMBER(int, pfnR3BthUnmapCR3,(PVMCPU pVCpu));
3813
3814	DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
3815	DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3816	DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
3817	DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3818	DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
3819	DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
3820	DECLR0CALLBACKMEMBER(int, pfnR0BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
3821	DECLR0CALLBACKMEMBER(int, pfnR0BthUnmapCR3,(PVMCPU pVCpu));
3822
3823	DECLRCCALLBACKMEMBER(int, pfnRCBthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
3824	DECLRCCALLBACKMEMBER(int, pfnRCBthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3825	DECLRCCALLBACKMEMBER(int, pfnRCBthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
3826	DECLRCCALLBACKMEMBER(int, pfnRCBthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3827	DECLRCCALLBACKMEMBER(int, pfnRCBthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
3828	DECLRCCALLBACKMEMBER(unsigned, pfnRCBthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
3829	DECLRCCALLBACKMEMBER(int, pfnRCBthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
3830	DECLRCCALLBACKMEMBER(int, pfnRCBthUnmapCR3,(PVMCPU pVCpu));
3831	#if 0
3832	RTRCPTR alignment2; /*< structure size alignment. /
3833	#endif
3834	/** @} */
3835
3836	/** For saving stack space, the disassembler state is allocated here instead of
3837	* on the stack. */
3838	DISCPUSTATE DisState;
3839
3840	/** Counts the number of times the netware WP0+RO+US hack has been applied. */
3841	uint64_t cNetwareWp0Hacks;
3842
3843	/** Count the number of pgm pool access handler calls. */
3844	uint64_t cPoolAccessHandler;
3845
3846	/** @name Release Statistics
3847	* @{ */
3848	/** The number of times the guest has switched mode since last reset or statistics reset. */
3849	STAMCOUNTER cGuestModeChanges;
3850	/** The number of times the guest has switched mode since last reset or statistics reset. */
3851	STAMCOUNTER cA20Changes;
3852	/** @} */
3853
3854	#ifdef VBOX_WITH_STATISTICS /** @todo move this chunk to the heap. */
3855	/** @name Statistics
3856	* @{ */
3857	/** RC: Pointer to the statistics. */
3858	RCPTRTYPE(PGMCPUSTATS *) pStatsRC;
3859	/** RC: Which statistic this \#PF should be attributed to. */
3860	RCPTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionRC;
3861	/** R0: Pointer to the statistics. */
3862	R0PTRTYPE(PGMCPUSTATS *) pStatsR0;
3863	/** R0: Which statistic this \#PF should be attributed to. */
3864	R0PTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionR0;
3865	/** R3: Pointer to the statistics. */
3866	R3PTRTYPE(PGMCPUSTATS *) pStatsR3;
3867	/** Alignment padding. */
3868	RTR3PTR pPaddingR3;
3869	/** @} */
3870	#endif /* VBOX_WITH_STATISTICS */
3871	} PGMCPU;
3872	/** Pointer to the per-cpu PGM data. */
3873	typedef PGMCPU *PPGMCPU;
3874
3875
3876	/** @name PGM::fSyncFlags Flags
3877	* @{
3878	*/
3879	/** Updates the virtual access handler state bit in PGMPAGE. */
3880	#define PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL RT_BIT(0)
3881	/** Always sync CR3. */
3882	#define PGM_SYNC_ALWAYS RT_BIT(1)
3883	/** Check monitoring on next CR3 (re)load and invalidate page.
3884	* @todo This is obsolete now. Remove after 2.2.0 is branched off. */
3885	#define PGM_SYNC_MONITOR_CR3 RT_BIT(2)
3886	/** Check guest mapping in SyncCR3. */
3887	#define PGM_SYNC_MAP_CR3 RT_BIT(3)
3888	/** Clear the page pool (a light weight flush). */
3889	#define PGM_SYNC_CLEAR_PGM_POOL_BIT 8
3890	#define PGM_SYNC_CLEAR_PGM_POOL RT_BIT(PGM_SYNC_CLEAR_PGM_POOL_BIT)
3891	/** @} */
3892
3893
3894	RT_C_DECLS_BEGIN
3895
3896	#if defined(VBOX_STRICT) && defined(IN_RING3)
3897	int pgmLockDebug(PVM pVM, RT_SRC_POS_DECL);
3898	# define pgmLock(a_pVM) pgmLockDebug(a_pVM, RT_SRC_POS)
3899	#else
3900	int pgmLock(PVM pVM);
3901	#endif
3902	void pgmUnlock(PVM pVM);
3903	/**
3904	* Asserts that the caller owns the PDM lock.
3905	* This is the internal variant of PGMIsLockOwner.
3906	* @param a_pVM Pointer to the VM.
3907	*/
3908	#define PGM_LOCK_ASSERT_OWNER(a_pVM) Assert(PDMCritSectIsOwner(&(a_pVM)->pgm.s.CritSectX))
3909	/**
3910	* Asserts that the caller owns the PDM lock.
3911	* This is the internal variant of PGMIsLockOwner.
3912	* @param a_pVM Pointer to the VM.
3913	* @param a_pVCpu The current CPU handle.
3914	*/
3915	#define PGM_LOCK_ASSERT_OWNER_EX(a_pVM, a_pVCpu) Assert(PDMCritSectIsOwnerEx(&(a_pVM)->pgm.s.CritSectX, pVCpu))
3916
3917	#ifndef PGM_WITHOUT_MAPPINGS
3918	int pgmR3MappingsFixInternal(PVM pVM, RTGCPTR GCPtrBase, uint32_t cb);
3919	int pgmR3SyncPTResolveConflict(PVM pVM, PPGMMAPPING pMapping, PX86PD pPDSrc, RTGCPTR GCPtrOldMapping);
3920	int pgmR3SyncPTResolveConflictPAE(PVM pVM, PPGMMAPPING pMapping, RTGCPTR GCPtrOldMapping);
3921	int pgmMapResolveConflicts(PVM pVM);
3922	#endif /* !PGM_WITHOUT_MAPPINGS */
3923	PPGMMAPPING pgmGetMapping(PVM pVM, RTGCPTR GCPtr);
3924	DECLCALLBACK(void) pgmR3MapInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
3925
3926	void pgmR3HandlerPhysicalUpdateAll(PVM pVM);
3927	bool pgmHandlerPhysicalIsAll(PVM pVM, RTGCPHYS GCPhys);
3928	void pgmHandlerPhysicalResetAliasedPage(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhysPage, bool fDoAccounting);
3929	int pgmHandlerVirtualFindByPhysAddr(PVM pVM, RTGCPHYS GCPhys, PPGMVIRTHANDLER ppVirt, unsigned piPage);
3930	DECLCALLBACK(int) pgmHandlerVirtualResetOne(PAVLROGCPTRNODECORE pNode, void *pvUser);
3931	#if defined(VBOX_STRICT) \|\| defined(LOG_ENABLED)
3932	void pgmHandlerVirtualDumpPhysPages(PVM pVM);
3933	#else
3934	# define pgmHandlerVirtualDumpPhysPages(a) do { } while (0)
3935	#endif
3936	DECLCALLBACK(void) pgmR3InfoHandlers(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
3937	int pgmR3InitSavedState(PVM pVM, uint64_t cbRam);
3938
3939	int pgmPhysAllocPage(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3940	int pgmPhysAllocLargePage(PVM pVM, RTGCPHYS GCPhys);
3941	int pgmPhysRecheckLargePage(PVM pVM, RTGCPHYS GCPhys, PPGMPAGE pLargePage);
3942	int pgmPhysPageLoadIntoTlb(PVM pVM, RTGCPHYS GCPhys);
3943	int pgmPhysPageLoadIntoTlbWithPage(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3944	void pgmPhysPageMakeWriteMonitoredWritable(PVM pVM, PPGMPAGE pPage);
3945	int pgmPhysPageMakeWritable(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3946	int pgmPhysPageMakeWritableAndMap(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3947	int pgmPhysPageMap(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3948	int pgmPhysPageMapReadOnly(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void const **ppv);
3949	int pgmPhysPageMapByPageID(PVM pVM, uint32_t idPage, RTHCPHYS HCPhys, void **ppv);
3950	int pgmPhysGCPhys2R3Ptr(PVM pVM, RTGCPHYS GCPhys, PRTR3PTR pR3Ptr);
3951	int pgmPhysCr3ToHCPtr(PVM pVM, RTGCPHYS GCPhys, PRTR3PTR pR3Ptr);
3952	int pgmPhysGCPhys2CCPtrInternalDepr(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3953	int pgmPhysGCPhys2CCPtrInternal(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv, PPGMPAGEMAPLOCK pLock);
3954	int pgmPhysGCPhys2CCPtrInternalReadOnly(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, const void **ppv, PPGMPAGEMAPLOCK pLock);
3955	void pgmPhysReleaseInternalPageMappingLock(PVM pVM, PPGMPAGEMAPLOCK pLock);
3956	VMMDECL(int) pgmPhysHandlerRedirectToHC(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
3957	VMMDECL(int) pgmPhysRomWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
3958	int pgmPhysFreePage(PVM pVM, PGMMFREEPAGESREQ pReq, uint32_t *pcPendingPages, PPGMPAGE pPage, RTGCPHYS GCPhys);
3959	void pgmPhysInvalidRamRangeTlbs(PVM pVM);
3960	void pgmPhysInvalidatePageMapTLB(PVM pVM);
3961	void pgmPhysInvalidatePageMapTLBEntry(PVM pVM, RTGCPHYS GCPhys);
3962	PPGMRAMRANGE pgmPhysGetRangeSlow(PVM pVM, RTGCPHYS GCPhys);
3963	PPGMRAMRANGE pgmPhysGetRangeAtOrAboveSlow(PVM pVM, RTGCPHYS GCPhys);
3964	PPGMPAGE pgmPhysGetPageSlow(PVM pVM, RTGCPHYS GCPhys);
3965	int pgmPhysGetPageExSlow(PVM pVM, RTGCPHYS GCPhys, PPPGMPAGE ppPage);
3966	int pgmPhysGetPageAndRangeExSlow(PVM pVM, RTGCPHYS GCPhys, PPPGMPAGE ppPage, PPGMRAMRANGE *ppRam);
3967
3968	#ifdef IN_RING3
3969	void pgmR3PhysRelinkRamRanges(PVM pVM);
3970	int pgmR3PhysRamPreAllocate(PVM pVM);
3971	int pgmR3PhysRamReset(PVM pVM);
3972	int pgmR3PhysRomReset(PVM pVM);
3973	int pgmR3PhysRamZeroAll(PVM pVM);
3974	int pgmR3PhysChunkMap(PVM pVM, uint32_t idChunk, PPPGMCHUNKR3MAP ppChunk);
3975	int pgmR3PhysRamTerm(PVM pVM);
3976	void pgmR3PhysRomTerm(PVM pVM);
3977	void pgmR3PhysAssertSharedPageChecksums(PVM pVM);
3978
3979	int pgmR3PoolInit(PVM pVM);
3980	void pgmR3PoolRelocate(PVM pVM);
3981	void pgmR3PoolResetUnpluggedCpu(PVM pVM, PVMCPU pVCpu);
3982	void pgmR3PoolReset(PVM pVM);
3983	void pgmR3PoolClearAll(PVM pVM, bool fFlushRemTlb);
3984	DECLCALLBACK(VBOXSTRICTRC) pgmR3PoolClearAllRendezvous(PVM pVM, PVMCPU pVCpu, void *fpvFlushRemTbl);
3985	void pgmR3PoolWriteProtectPages(PVM pVM);
3986
3987	#endif /* IN_RING3 */
3988	#if defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0) \|\| defined(IN_RC)
3989	int pgmRZDynMapHCPageCommon(PPGMMAPSET pSet, RTHCPHYS HCPhys, void **ppv RTLOG_COMMA_SRC_POS_DECL);
3990	int pgmRZDynMapGCPageCommon(PVM pVM, PVMCPU pVCpu, RTGCPHYS GCPhys, void **ppv RTLOG_COMMA_SRC_POS_DECL);
3991	# ifdef LOG_ENABLED
3992	void pgmRZDynMapUnusedHint(PVMCPU pVCpu, void *pvHint, RT_SRC_POS_DECL);
3993	# else
3994	void pgmRZDynMapUnusedHint(PVMCPU pVCpu, void *pvHint);
3995	# endif
3996	#endif
3997	int pgmPoolAlloc(PVM pVM, RTGCPHYS GCPhys, PGMPOOLKIND enmKind, PGMPOOLACCESS enmAccess, bool fA20Enabled,
3998	uint16_t iUser, uint32_t iUserTable, bool fLockPage, PPPGMPOOLPAGE ppPage);
3999	void pgmPoolFree(PVM pVM, RTHCPHYS HCPhys, uint16_t iUser, uint32_t iUserTable);
4000	void pgmPoolFreeByPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, uint16_t iUser, uint32_t iUserTable);
4001	int pgmPoolFlushPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, bool fFlush = true /* DO NOT USE false UNLESS YOU KNOWN WHAT YOU'RE DOING!! */);
4002	void pgmPoolFlushPageByGCPhys(PVM pVM, RTGCPHYS GCPhys);
4003	PPGMPOOLPAGE pgmPoolGetPage(PPGMPOOL pPool, RTHCPHYS HCPhys);
4004	PPGMPOOLPAGE pgmPoolQueryPageForDbg(PPGMPOOL pPool, RTHCPHYS HCPhys);
4005	int pgmPoolSyncCR3(PVMCPU pVCpu);
4006	bool pgmPoolIsDirtyPage(PVM pVM, RTGCPHYS GCPhys);
4007	void pgmPoolInvalidateDirtyPage(PVM pVM, RTGCPHYS GCPhysPT);
4008	int pgmPoolTrackUpdateGCPhys(PVM pVM, RTGCPHYS GCPhysPage, PPGMPAGE pPhysPage, bool fFlushPTEs, bool *pfFlushTLBs);
4009	void pgmPoolTracDerefGCPhysHint(PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTHCPHYS HCPhys, RTGCPHYS GCPhysHint, uint16_t iPte);
4010	uint16_t pgmPoolTrackPhysExtAddref(PVM pVM, PPGMPAGE pPhysPage, uint16_t u16, uint16_t iShwPT, uint16_t iPte);
4011	void pgmPoolTrackPhysExtDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPoolPage, PPGMPAGE pPhysPage, uint16_t iPte);
4012	void pgmPoolMonitorChainChanging(PVMCPU pVCpu, PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTGCPHYS GCPhysFault, CTXTYPE(RTGCPTR, RTHCPTR, RTGCPTR) pvAddress, unsigned cbWrite);
4013	int pgmPoolMonitorChainFlush(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
4014	void pgmPoolMonitorModifiedInsert(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
4015
4016	void pgmPoolAddDirtyPage(PVM pVM, PPGMPOOL pPool, PPGMPOOLPAGE pPage);
4017	void pgmPoolResetDirtyPages(PVM pVM);
4018	void pgmPoolResetDirtyPage(PVM pVM, RTGCPTR GCPtrPage);
4019
4020	int pgmR3ExitShadowModeBeforePoolFlush(PVMCPU pVCpu);
4021	int pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu);
4022	void pgmR3RefreshShadowModeAfterA20Change(PVMCPU pVCpu);
4023
4024	void pgmMapSetShadowPDEs(PVM pVM, PPGMMAPPING pMap, unsigned iNewPDE);
4025	void pgmMapClearShadowPDEs(PVM pVM, PPGMPOOLPAGE pShwPageCR3, PPGMMAPPING pMap, unsigned iOldPDE, bool fDeactivateCR3);
4026	int pgmMapActivateCR3(PVM pVM, PPGMPOOLPAGE pShwPageCR3);
4027	int pgmMapDeactivateCR3(PVM pVM, PPGMPOOLPAGE pShwPageCR3);
4028
4029	int pgmShwMakePageSupervisorAndWritable(PVMCPU pVCpu, RTGCPTR GCPtr, uint32_t fOpFlags);
4030	int pgmShwSyncPaePDPtr(PVMCPU pVCpu, RTGCPTR GCPtr, X86PGPAEUINT uGstPdpe, PX86PDPAE *ppPD);
4031	int pgmShwSyncNestedPageLocked(PVMCPU pVCpu, RTGCPHYS GCPhysFault, uint32_t cPages, PGMMODE enmShwPagingMode);
4032
4033	int pgmGstLazyMap32BitPD(PVMCPU pVCpu, PX86PD *ppPd);
4034	int pgmGstLazyMapPaePDPT(PVMCPU pVCpu, PX86PDPT *ppPdpt);
4035	int pgmGstLazyMapPaePD(PVMCPU pVCpu, uint32_t iPdpt, PX86PDPAE *ppPd);
4036	int pgmGstLazyMapPml4(PVMCPU pVCpu, PX86PML4 *ppPml4);
4037
4038	# if defined(VBOX_STRICT) && HC_ARCH_BITS == 64 && defined(IN_RING3)
4039	FNDBGCCMD pgmR3CmdCheckDuplicatePages;
4040	FNDBGCCMD pgmR3CmdShowSharedModules;
4041	# endif
4042
4043	RT_C_DECLS_END
4044
4045	/** @} */
4046
4047	#endif
4048

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source: vbox/trunk/src/VBox/VMM/include/PGMInternal.h@ 45808

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