PGMInternal.h@ 2218

Last change on this file since 2218 was 2089, checked in by vboxsync, 18 years ago
Added PGMPOOLKIND_32BIT_PT_FOR_PHYS & PGMPOOLKIND_PAE_PT_FOR_PHYS
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 110.7 KB

Line
1	/* $Id: PGMInternal.h 2089 2007-04-14 15:20:19Z vboxsync $ */
2	/** @file
3	* PGM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006 InnoTek Systemberatung GmbH
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 as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* If you received this file as part of a commercial VirtualBox
18	* distribution, then only the terms of your commercial VirtualBox
19	* license agreement apply instead of the previous paragraph.
20	*/
21
22	#ifndef __PGMInternal_h__
23	#define __PGMInternal_h__
24
25	#include <VBox/cdefs.h>
26	#include <VBox/types.h>
27	#include <VBox/err.h>
28	#include <VBox/stam.h>
29	#include <VBox/param.h>
30	#include <VBox/vmm.h>
31	#include <VBox/mm.h>
32	#include <VBox/pdm.h>
33	#include <iprt/avl.h>
34	#include <iprt/assert.h>
35	#include <iprt/critsect.h>
36
37	#if !defined(IN_PGM_R3) && !defined(IN_PGM_R0) && !defined(IN_PGM_GC)
38	# error "Not in PGM! This is an internal header!"
39	#endif
40
41
42	/** @defgroup grp_pgm_int Internals
43	* @ingroup grp_pgm
44	* @internal
45	* @{
46	*/
47
48
49	/** @name PGM Compile Time Config
50	* @{
51	*/
52
53	/**
54	* Solve page is out of sync issues inside Guest Context (in PGMGC.cpp).
55	* Comment it if it will break something.
56	*/
57	#define PGM_OUT_OF_SYNC_IN_GC
58
59	/**
60	* Virtualize the dirty bit
61	* This also makes a half-hearted attempt at the accessed bit. For full
62	* accessed bit virtualization define PGM_SYNC_ACCESSED_BIT.
63	*/
64	#define PGM_SYNC_DIRTY_BIT
65
66	/**
67	* Fully virtualize the accessed bit.
68	* @remark This requires SYNC_DIRTY_ACCESSED_BITS to be defined!
69	*/
70	#define PGM_SYNC_ACCESSED_BIT
71
72	/**
73	* Check and skip global PDEs for non-global flushes
74	*/
75	#define PGM_SKIP_GLOBAL_PAGEDIRS_ON_NONGLOBAL_FLUSH
76
77	/**
78	* Sync N pages instead of a whole page table
79	*/
80	#define PGM_SYNC_N_PAGES
81
82	/**
83	* Number of pages to sync during a page fault
84	*
85	* When PGMPOOL_WITH_GCPHYS_TRACKING is enabled using high values here
86	* causes a lot of unnecessary extents and also is slower than taking more \#PFs.
87	*/
88	#define PGM_SYNC_NR_PAGES 8
89
90	/**
91	* Number of PGMPhysRead/Write cache entries (must be <= sizeof(uint64_t))
92	*/
93	#define PGM_MAX_PHYSCACHE_ENTRIES 64
94	#define PGM_MAX_PHYSCACHE_ENTRIES_MASK (PGM_MAX_PHYSCACHE_ENTRIES-1)
95
96	/**
97	* Enable caching of PGMR3PhysRead/WriteByte/Word/Dword
98	*/
99	#define PGM_PHYSMEMACCESS_CACHING
100
101	/*
102	* Assert Sanity.
103	*/
104	#if defined(PGM_SYNC_ACCESSED_BIT) && !defined(PGM_SYNC_DIRTY_BIT)
105	# error "PGM_SYNC_ACCESSED_BIT requires PGM_SYNC_DIRTY_BIT!"
106	#endif
107
108	/** @def PGMPOOL_WITH_CACHE
109	* Enable agressive caching using the page pool.
110	*
111	* This requires PGMPOOL_WITH_USER_TRACKING and PGMPOOL_WITH_MONITORING.
112	*/
113	#define PGMPOOL_WITH_CACHE
114
115	/** @def PGMPOOL_WITH_MIXED_PT_CR3
116	* When defined, we'll deal with 'uncachable' pages.
117	*/
118	#ifdef PGMPOOL_WITH_CACHE
119	# define PGMPOOL_WITH_MIXED_PT_CR3
120	#endif
121
122	/** @def PGMPOOL_WITH_MONITORING
123	* Monitor the guest pages which are shadowed.
124	* When this is enabled, PGMPOOL_WITH_CACHE or PGMPOOL_WITH_GCPHYS_TRACKING must
125	* be enabled as well.
126	* @remark doesn't really work without caching now. (Mixed PT/CR3 change.)
127	*/
128	#ifdef PGMPOOL_WITH_CACHE
129	# define PGMPOOL_WITH_MONITORING
130	#endif
131
132	/** @def PGMPOOL_WITH_GCPHYS_TRACKING
133	* Tracking the of shadow pages mapping guest physical pages.
134	*
135	* This is very expensive, the current cache prototype is trying to figure out
136	* whether it will be acceptable with an agressive caching policy.
137	*/
138	#if defined(PGMPOOL_WITH_CACHE) \|\| defined(PGMPOOL_WITH_MONITORING)
139	# define PGMPOOL_WITH_GCPHYS_TRACKING
140	#endif
141
142	/** @def PGMPOOL_WITH_USER_TRACKING
143	* Tracking users of shadow pages. This is required for the linking of shadow page
144	* tables and physical guest addresses.
145	*/
146	#if defined(PGMPOOL_WITH_GCPHYS_TRACKING) \|\| defined(PGMPOOL_WITH_CACHE) \|\| defined(PGMPOOL_WITH_MONITORING)
147	# define PGMPOOL_WITH_USER_TRACKING
148	#endif
149
150	/** @def PGMPOOL_CFG_MAX_GROW
151	* The maximum number of pages to add to the pool in one go.
152	*/
153	#define PGMPOOL_CFG_MAX_GROW (_256K >> PAGE_SHIFT)
154
155	/** @def VBOX_STRICT_PGM_HANDLER_VIRTUAL
156	* Enables some extra assertions for virtual handlers (mainly phys2virt related).
157	*/
158	#ifdef VBOX_STRICT
159	# define VBOX_STRICT_PGM_HANDLER_VIRTUAL
160	#endif
161	/** @} */
162
163
164	/** @name PDPTR and PML4 flags.
165	* These are placed in the three bits available for system programs in
166	* the PDPTR and PML4 entries.
167	* @{ */
168	/** The entry is a permanent one and it's must always be present.
169	* Never free such an entry. */
170	#define PGM_PLXFLAGS_PERMANENT BIT64(10)
171	/** @} */
172
173	/** @name Page directory flags.
174	* These are placed in the three bits available for system programs in
175	* the page directory entries.
176	* @{ */
177	/** Mapping (hypervisor allocated pagetable). */
178	#define PGM_PDFLAGS_MAPPING BIT64(10)
179	/** Made read-only to facilitate dirty bit tracking. */
180	#define PGM_PDFLAGS_TRACK_DIRTY BIT64(11)
181	/** @} */
182
183	/** @name Page flags.
184	* These are placed in the three bits available for system programs in
185	* the page entries.
186	* @{ */
187	/** Made read-only to facilitate dirty bit tracking. */
188	#define PGM_PTFLAGS_TRACK_DIRTY BIT64(9)
189
190	#ifndef PGM_PTFLAGS_CSAM_VALIDATED
191	/** Scanned and approved by CSAM (tm).
192	* NOTE: Must be identical to the one defined in CSAMInternal.h!!
193	* @todo Move PGM_PTFLAGS_* and PGM_PDFLAGS_* to VBox/pgm.h. */
194	#define PGM_PTFLAGS_CSAM_VALIDATED BIT64(11)
195	#endif
196	/** @} */
197
198	/** @name Defines used to indicate the shadow and guest paging in the templates.
199	* @{ */
200	#define PGM_TYPE_REAL 1
201	#define PGM_TYPE_PROT 2
202	#define PGM_TYPE_32BIT 3
203	#define PGM_TYPE_PAE 4
204	#define PGM_TYPE_AMD64 5
205	/** @} */
206
207	/** @name Defines used to check if the guest is using paging
208	* @{ */
209	#define PGM_WITH_PAGING(a) (a == PGM_TYPE_32BIT \|\| a == PGM_TYPE_PAE \|\| a == PGM_TYPE_AMD64)
210	/** @} */
211
212	/** @def PGM_HCPHYS_2_PTR
213	* Maps a HC physical page pool address to a virtual address.
214	*
215	* @returns VBox status code.
216	* @param pVM The VM handle.
217	* @param HCPhys The HC physical address to map to a virtual one.
218	* @param ppv Where to store the virtual address. No need to cast this.
219	*
220	* @remark In GC this uses PGMGCDynMapHCPage(), so it will consume of the
221	* small page window employeed by that function. Be careful.
222	* @remark There is no need to assert on the result.
223	*/
224	#ifdef IN_GC
225	# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) PGMGCDynMapHCPage(pVM, HCPhys, (void **)(ppv))
226	#else
227	# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) MMPagePhys2PageEx(pVM, HCPhys, (void **)(ppv))
228	#endif
229
230	/** @def PGM_GCPHYS_2_PTR
231	* Maps a GC physical page address to a virtual address.
232	*
233	* @returns VBox status code.
234	* @param pVM The VM handle.
235	* @param GCPhys The GC physical address to map to a virtual one.
236	* @param ppv Where to store the virtual address. No need to cast this.
237	*
238	* @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
239	* small page window employeed by that function. Be careful.
240	* @remark There is no need to assert on the result.
241	*/
242	#ifdef IN_GC
243	# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) PGMGCDynMapGCPage(pVM, GCPhys, (void **)(ppv))
244	#else
245	# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) PGMPhysGCPhys2HCPtr(pVM, GCPhys, 1 /* one page only /, (void )(ppv)) /* @todo this isn't asserting, use PGMRamGCPhys2HCPtr! */
246	#endif
247
248	/** @def PGM_GCPHYS_2_PTR_EX
249	* Maps a unaligned GC physical page address to a virtual address.
250	*
251	* @returns VBox status code.
252	* @param pVM The VM handle.
253	* @param GCPhys The GC physical address to map to a virtual one.
254	* @param ppv Where to store the virtual address. No need to cast this.
255	*
256	* @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
257	* small page window employeed by that function. Be careful.
258	* @remark There is no need to assert on the result.
259	*/
260	#ifdef IN_GC
261	# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) PGMGCDynMapGCPageEx(pVM, GCPhys, (void **)(ppv))
262	#else
263	# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) PGMPhysGCPhys2HCPtr(pVM, GCPhys, 1 /* one page only /, (void )(ppv)) /* @todo this isn't asserting, use PGMRamGCPhys2HCPtr! */
264	#endif
265
266	/** @def PGM_INVL_PG
267	* Invalidates a page when in GC does nothing in HC.
268	*
269	* @param GCVirt The virtual address of the page to invalidate.
270	*/
271	#ifdef IN_GC
272	# define PGM_INVL_PG(GCVirt) ASMInvalidatePage((void *)(GCVirt))
273	#else
274	# define PGM_INVL_PG(GCVirt) ((void)0)
275	#endif
276
277	/** @def PGM_INVL_BIG_PG
278	* Invalidates a 4MB page directory entry when in GC does nothing in HC.
279	*
280	* @param GCVirt The virtual address within the page directory to invalidate.
281	*/
282	#ifdef IN_GC
283	# define PGM_INVL_BIG_PG(GCVirt) ASMReloadCR3()
284	#else
285	# define PGM_INVL_BIG_PG(GCVirt) ((void)0)
286	#endif
287
288	/** @def PGM_INVL_GUEST_TLBS()
289	* Invalidates all guest TLBs.
290	*/
291	#ifdef IN_GC
292	# define PGM_INVL_GUEST_TLBS() ASMReloadCR3()
293	#else
294	# define PGM_INVL_GUEST_TLBS() ((void)0)
295	#endif
296
297
298	/**
299	* Structure for tracking GC Mappings.
300	*
301	* This structure is used by linked list in both GC and HC.
302	*/
303	typedef struct PGMMAPPING
304	{
305	/** Pointer to next entry. */
306	HCPTRTYPE(struct PGMMAPPING *) pNextHC;
307	/** Pointer to next entry. */
308	GCPTRTYPE(struct PGMMAPPING *) pNextGC;
309	/** Start Virtual address. */
310	RTGCUINTPTR GCPtr;
311	/** Last Virtual address (inclusive). */
312	RTGCUINTPTR GCPtrLast;
313	/** Range size (bytes). */
314	RTGCUINTPTR cb;
315	/** Pointer to relocation callback function. */
316	HCPTRTYPE(PFNPGMRELOCATE) pfnRelocate;
317	/** User argument to the callback. */
318	HCPTRTYPE(void *) pvUser;
319	/** Mapping description / name. For easing debugging. */
320	HCPTRTYPE(const char *) pszDesc;
321	/** Number of page tables. */
322	RTUINT cPTs;
323	#if HC_ARCH_BITS != GC_ARCH_BITS
324	RTUINT uPadding0; /*< Alignment padding. /
325	#endif
326	/** Array of page table mapping data. Each entry
327	* describes one page table. The array can be longer
328	* than the declared length.
329	*/
330	struct
331	{
332	/** The HC physical address of the page table. */
333	RTHCPHYS HCPhysPT;
334	/** The HC physical address of the first PAE page table. */
335	RTHCPHYS HCPhysPaePT0;
336	/** The HC physical address of the second PAE page table. */
337	RTHCPHYS HCPhysPaePT1;
338	/** The HC virtual address of the 32-bit page table. */
339	HCPTRTYPE(PVBOXPT) pPTHC;
340	/** The HC virtual address of the two PAE page table. (i.e 1024 entries instead of 512) */
341	HCPTRTYPE(PX86PTPAE) paPaePTsHC;
342	/** The GC virtual address of the 32-bit page table. */
343	GCPTRTYPE(PVBOXPT) pPTGC;
344	/** The GC virtual address of the two PAE page table. */
345	GCPTRTYPE(PX86PTPAE) paPaePTsGC;
346	} aPTs[1];
347	} PGMMAPPING;
348	/** Pointer to structure for tracking GC Mappings. */
349	typedef struct PGMMAPPING *PPGMMAPPING;
350
351
352	/**
353	* Physical page access handler structure.
354	*
355	* This is used to keep track of physical address ranges
356	* which are being monitored in some kind of way.
357	*/
358	typedef struct PGMPHYSHANDLER
359	{
360	AVLROGCPHYSNODECORE Core;
361	/** Alignment padding. */
362	uint32_t u32Padding;
363	/** Access type. */
364	PGMPHYSHANDLERTYPE enmType;
365	/** Number of pages to update. */
366	uint32_t cPages;
367	/** Pointer to R3 callback function. */
368	HCPTRTYPE(PFNPGMR3PHYSHANDLER) pfnHandlerR3;
369	/** User argument for R3 handlers. */
370	HCPTRTYPE(void *) pvUserR3;
371	/** Pointer to R0 callback function. */
372	R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnHandlerR0;
373	/** User argument for R0 handlers. */
374	HCPTRTYPE(void *) pvUserR0;
375	/** Pointer to GC callback function. */
376	GCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnHandlerGC;
377	/** User argument for GC handlers. */
378	GCPTRTYPE(void *) pvUserGC;
379	/** Description / Name. For easing debugging. */
380	HCPTRTYPE(const char *) pszDesc;
381	#ifdef VBOX_WITH_STATISTICS
382	/** Profiling of this handler. */
383	STAMPROFILE Stat;
384	#endif
385	} PGMPHYSHANDLER;
386	/** Pointer to a physical page access handler structure. */
387	typedef PGMPHYSHANDLER *PPGMPHYSHANDLER;
388
389
390	/**
391	* Cache node for the physical addresses covered by a virtual handler.
392	*/
393	typedef struct PGMPHYS2VIRTHANDLER
394	{
395	/** Core node for the tree based on physical ranges. */
396	AVLROGCPHYSNODECORE Core;
397	/** Offset from this struct to the PGMVIRTHANDLER structure. */
398	RTGCINTPTR offVirtHandler;
399	/** Offset of the next alias relativer to this one.
400	* Bit 0 is used for indicating whether we're in the tree.
401	* Bit 1 is used for indicating that we're the head node.
402	*/
403	int32_t offNextAlias;
404	} PGMPHYS2VIRTHANDLER;
405	/** Pointer to a phys to virtual handler structure. */
406	typedef PGMPHYS2VIRTHANDLER *PPGMPHYS2VIRTHANDLER;
407
408	/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
409	* node is in the tree. */
410	#define PGMPHYS2VIRTHANDLER_IN_TREE BIT(0)
411	/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
412	* node is in the head of an alias chain.
413	* The PGMPHYS2VIRTHANDLER_IN_TREE is always set if this bit is set. */
414	#define PGMPHYS2VIRTHANDLER_IS_HEAD BIT(1)
415	/** The mask to apply to PGMPHYS2VIRTHANDLER::offNextAlias to get the offset. */
416	#define PGMPHYS2VIRTHANDLER_OFF_MASK (~(int32_t)3)
417
418
419	/**
420	* Virtual page access handler structure.
421	*
422	* This is used to keep track of virtual address ranges
423	* which are being monitored in some kind of way.
424	*/
425	typedef struct PGMVIRTHANDLER
426	{
427	/** Core node for the tree based on virtual ranges. */
428	AVLROGCPTRNODECORE Core;
429	/** Number of cache pages. */
430	uint32_t u32Padding;
431	/** Access type. */
432	PGMVIRTHANDLERTYPE enmType;
433	/** Number of cache pages. */
434	uint32_t cPages;
435
436	/** @todo The next two members are redundant. It adds some readability though. */
437	/** Start of the range. */
438	RTGCPTR GCPtr;
439	/** End of the range (exclusive). */
440	RTGCPTR GCPtrLast;
441	/** Size of the range (in bytes). */
442	RTGCUINTPTR cb;
443	/** Pointer to the GC callback function. */
444	GCPTRTYPE(PFNPGMGCVIRTHANDLER) pfnHandlerGC;
445	/** Pointer to the HC callback function for invalidation. */
446	HCPTRTYPE(PFNPGMHCVIRTINVALIDATE) pfnInvalidateHC;
447	/** Pointer to the HC callback function. */
448	HCPTRTYPE(PFNPGMHCVIRTHANDLER) pfnHandlerHC;
449	/** Description / Name. For easing debugging. */
450	HCPTRTYPE(const char *) pszDesc;
451	#ifdef VBOX_WITH_STATISTICS
452	/** Profiling of this handler. */
453	STAMPROFILE Stat;
454	#endif
455	/** Array of cached physical addresses for the monitored ranged. */
456	PGMPHYS2VIRTHANDLER aPhysToVirt[HC_ARCH_BITS == 32 ? 1 : 2];
457	} PGMVIRTHANDLER;
458	/** Pointer to a virtual page access handler structure. */
459	typedef PGMVIRTHANDLER *PPGMVIRTHANDLER;
460
461
462	/**
463	* Ram range for GC Phys to HC Phys conversion.
464	*
465	* Can be used for HC Virt to GC Phys and HC Virt to HC Phys
466	* conversions too, but we'll let MM handle that for now.
467	*
468	* This structure is used by linked lists in both GC and HC.
469	*/
470	typedef struct PGMRAMRANGE
471	{
472	/** Pointer to the next RAM range - for HC. */
473	HCPTRTYPE(struct PGMRAMRANGE *) pNextHC;
474	/** Pointer to the next RAM range - for GC. */
475	GCPTRTYPE(struct PGMRAMRANGE *) pNextGC;
476	/** Start of the range. Page aligned. */
477	RTGCPHYS GCPhys;
478	/** Last address in the range (inclusive). Page aligned (-1). */
479	RTGCPHYS GCPhysLast;
480	/** Size of the range. (Page aligned of course). */
481	RTGCPHYS cb;
482	/** MM_RAM_* flags */
483	uint32_t fFlags;
484
485	/** HC virtual lookup ranges for chunks. Currently only used with MM_RAM_FLAGS_DYNAMIC_ALLOC ranges. */
486	GCPTRTYPE(PRTHCPTR) pavHCChunkGC;
487	/** HC virtual lookup ranges for chunks. Currently only used with MM_RAM_FLAGS_DYNAMIC_ALLOC ranges. */
488	HCPTRTYPE(PRTHCPTR) pavHCChunkHC;
489
490	/** Start of the HC mapping of the range.
491	* For pure MMIO and dynamically allocated ranges this is NULL, while for all ranges this is a valid pointer. */
492	HCPTRTYPE(void *) pvHC;
493
494	/** Array of the flags and HC physical addresses corresponding to the range.
495	* The index is the page number in the range. The size is cb >> PAGE_SHIFT.
496	*
497	* The 12 lower bits of the physical address are flags and must be masked
498	* off to get the correct physical address.
499	*
500	* For pure MMIO ranges only the flags are valid.
501	*/
502	RTHCPHYS aHCPhys[1];
503	} PGMRAMRANGE;
504	/** Pointer to Ram range for GC Phys to HC Phys conversion. */
505	typedef PGMRAMRANGE *PPGMRAMRANGE;
506
507	/** Return hc ptr corresponding to the ram range and physical offset */
508	#define PGMRAMRANGE_GETHCPTR(pRam, off) \
509	(pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC) ? (RTHCPTR)((RTHCUINTPTR)CTXSUFF(pRam->pavHCChunk)[(off >> PGM_DYNAMIC_CHUNK_SHIFT)] + (off & PGM_DYNAMIC_CHUNK_OFFSET_MASK)) \
510	: (RTHCPTR)((RTHCUINTPTR)pRam->pvHC + off);
511
512	/** @todo r=bird: fix typename. */
513	/**
514	* PGMPhysRead/Write cache entry
515	*/
516	typedef struct PGMPHYSCACHE_ENTRY
517	{
518	/** HC pointer to physical page */
519	HCPTRTYPE(uint8_t *) pbHC;
520	/** GC Physical address for cache entry */
521	RTGCPHYS GCPhys;
522	#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
523	RTGCPHYS u32Padding0; /*< alignment padding. /
524	#endif
525	} PGMPHYSCACHE_ENTRY;
526
527	/**
528	* PGMPhysRead/Write cache to reduce REM memory access overhead
529	*/
530	typedef struct PGMPHYSCACHE
531	{
532	/** Bitmap of valid cache entries */
533	uint64_t aEntries;
534	/** Cache entries */
535	PGMPHYSCACHE_ENTRY Entry[PGM_MAX_PHYSCACHE_ENTRIES];
536	} PGMPHYSCACHE;
537
538
539	/** @name PGM Pool Indexes.
540	* Aka. the unique shadow page identifier.
541	* @{ */
542	/** NIL page pool IDX. */
543	#define NIL_PGMPOOL_IDX 0
544	/** The first normal index. */
545	#define PGMPOOL_IDX_FIRST_SPECIAL 1
546	/** Page directory (32-bit root). */
547	#define PGMPOOL_IDX_PD 1
548	/** The extended PAE page directory (2048 entries, works as root currently). */
549	#define PGMPOOL_IDX_PAE_PD 2
550	/** Page Directory Pointer Table (PAE root, not currently used). */
551	#define PGMPOOL_IDX_PDPTR 3
552	/** Page Map Level-4 (64-bit root). */
553	#define PGMPOOL_IDX_PML4 4
554	/** The first normal index. */
555	#define PGMPOOL_IDX_FIRST 5
556	/** The last valid index. (inclusive, 14 bits) */
557	#define PGMPOOL_IDX_LAST 0x3fff
558	/** @} */
559
560	/** The NIL index for the parent chain. */
561	#define NIL_PGMPOOL_USER_INDEX ((uint16_t)0xffff)
562
563	/**
564	* Node in the chain linking a shadowed page to it's parent (user).
565	*/
566	#pragma pack(1)
567	typedef struct PGMPOOLUSER
568	{
569	/** The index to the next item in the chain. NIL_PGMPOOL_USER_INDEX is no next. */
570	uint16_t iNext;
571	/** The user page index. */
572	uint16_t iUser;
573	/** Index into the user table. */
574	uint16_t iUserTable;
575	} PGMPOOLUSER, *PPGMPOOLUSER;
576	typedef const PGMPOOLUSER *PCPGMPOOLUSER;
577	#pragma pack()
578
579
580	/** The NIL index for the phys ext chain. */
581	#define NIL_PGMPOOL_PHYSEXT_INDEX ((uint16_t)0xffff)
582
583	/**
584	* Node in the chain of physical cross reference extents.
585	*/
586	#pragma pack(1)
587	typedef struct PGMPOOLPHYSEXT
588	{
589	/** The index to the next item in the chain. NIL_PGMPOOL_PHYSEXT_INDEX is no next. */
590	uint16_t iNext;
591	/** The user page index. */
592	uint16_t aidx[3];
593	} PGMPOOLPHYSEXT, *PPGMPOOLPHYSEXT;
594	typedef const PGMPOOLPHYSEXT *PCPGMPOOLPHYSEXT;
595	#pragma pack()
596
597
598	/**
599	* The kind of page that's being shadowed.
600	*/
601	typedef enum PGMPOOLKIND
602	{
603	/** The virtual invalid 0 entry. */
604	PGMPOOLKIND_INVALID = 0,
605	/** The entry is free (=unused). */
606	PGMPOOLKIND_FREE,
607
608	/** Shw: 32-bit page table; Gst: no paging */
609	PGMPOOLKIND_32BIT_PT_FOR_PHYS,
610	/** Shw: 32-bit page table; Gst: 32-bit page table. */
611	PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT,
612	/** Shw: 32-bit page table; Gst: 4MB page. */
613	PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB,
614	/** Shw: PAE page table; Gst: no paging */
615	PGMPOOLKIND_PAE_PT_FOR_PHYS,
616	/** Shw: PAE page table; Gst: 32-bit page table. */
617	PGMPOOLKIND_PAE_PT_FOR_32BIT_PT,
618	/** Shw: PAE page table; Gst: Half of a 4MB page. */
619	PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB,
620	/** Shw: PAE page table; Gst: PAE page table. */
621	PGMPOOLKIND_PAE_PT_FOR_PAE_PT,
622	/** Shw: PAE page table; Gst: 2MB page. */
623	PGMPOOLKIND_PAE_PT_FOR_PAE_2MB,
624
625	/** Shw: PAE page directory; Gst: 32-bit page directory. */
626	PGMPOOLKIND_PAE_PD_FOR_32BIT_PD,
627	/** Shw: PAE page directory; Gst: PAE page directory. */
628	PGMPOOLKIND_PAE_PD_FOR_PAE_PD,
629
630	/** Shw: 64-bit page directory pointer table; Gst: 64-bit page directory pointer table. */
631	PGMPOOLKIND_64BIT_PDPTR_FOR_64BIT_PDPTR,
632
633	/** Shw: Root 32-bit page directory. */
634	PGMPOOLKIND_ROOT_32BIT_PD,
635	/** Shw: Root PAE page directory */
636	PGMPOOLKIND_ROOT_PAE_PD,
637	/** Shw: Root PAE page directory pointer table (legacy, 4 entries). */
638	PGMPOOLKIND_ROOT_PDPTR,
639	/** Shw: Root page map level-4 table. */
640	PGMPOOLKIND_ROOT_PML4,
641
642	/** The last valid entry. */
643	PGMPOOLKIND_LAST = PGMPOOLKIND_ROOT_PML4
644	} PGMPOOLKIND;
645
646
647	/**
648	* The tracking data for a page in the pool.
649	*/
650	typedef struct PGMPOOLPAGE
651	{
652	/** AVL node code with the (HC) physical address of this page. */
653	AVLOHCPHYSNODECORE Core;
654	/** Pointer to the HC mapping of the page. */
655	HCPTRTYPE(void *) pvPageHC;
656	/** The guest physical address. */
657	RTGCPHYS GCPhys;
658	/** The kind of page we're shadowing. (This is really a PGMPOOLKIND enum.) */
659	uint8_t enmKind;
660	uint8_t bPadding;
661	/** The index of this page. */
662	uint16_t idx;
663	/** The next entry in the list this page currently resides in.
664	* It's either in the free list or in the GCPhys hash. */
665	uint16_t iNext;
666	#ifdef PGMPOOL_WITH_USER_TRACKING
667	/** Head of the user chain. NIL_PGMPOOL_USER_INDEX if not currently in use. */
668	uint16_t iUserHead;
669	/** The number of present entries. */
670	uint16_t cPresent;
671	/** The first entry in the table which is present. */
672	uint16_t iFirstPresent;
673	#endif
674	#ifdef PGMPOOL_WITH_MONITORING
675	/** The number of modifications to the monitored page. */
676	uint16_t cModifications;
677	/** The next modified page. NIL_PGMPOOL_IDX if tail. */
678	uint16_t iModifiedNext;
679	/** The previous modified page. NIL_PGMPOOL_IDX if head. */
680	uint16_t iModifiedPrev;
681	/** The next page sharing access handler. NIL_PGMPOOL_IDX if tail. */
682	uint16_t iMonitoredNext;
683	/** The previous page sharing access handler. NIL_PGMPOOL_IDX if head. */
684	uint16_t iMonitoredPrev;
685	#endif
686	#ifdef PGMPOOL_WITH_CACHE
687	/** The next page in the age list. */
688	uint16_t iAgeNext;
689	/** The previous page in the age list. */
690	uint16_t iAgePrev;
691	/** @todo add more from PGMCache.h when merging with it. */
692	#endif /* PGMPOOL_WITH_CACHE */
693	/** Used to indicate that the page is zeroed. */
694	bool fZeroed;
695	/** Used to indicate that a PT has non-global entries. */
696	bool fSeenNonGlobal;
697	/** Used to indicate that we're monitoring writes to the guest page. */
698	bool fMonitored;
699	/** Used to indicate that the page is in the cache (e.g. in the GCPhys hash).
700	* (All pages are in the age list.) */
701	bool fCached;
702	/** This is used by the R3 access handlers when invoked by an async thread.
703	* It's a hack required because of REMR3NotifyHandlerPhysicalDeregister. */
704	bool volatile fReusedFlushPending;
705	/** Used to indicate that the guest is mapping the page is also used as a CR3.
706	* In these cases the access handler acts differently and will check
707	* for mapping conflicts like the normal CR3 handler.
708	* @todo When we change the CR3 shadowing to use pool pages, this flag can be
709	* replaced by a list of pages which share access handler.
710	*/
711	bool fCR3Mix;
712	#if HC_ARCH_BITS == 64 \|\| GC_ARCH_BITS == 64
713	bool Alignment[4]; /*< Align the structure size on a 64-bit boundrary. /
714	#endif
715	} PGMPOOLPAGE, PPGMPOOLPAGE, *PPPGMPOOLPAGE;
716
717
718	#ifdef PGMPOOL_WITH_CACHE
719	/** The hash table size. */
720	# define PGMPOOL_HASH_SIZE 0x40
721	/** The hash function. */
722	# define PGMPOOL_HASH(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGMPOOL_HASH_SIZE - 1) )
723	#endif
724
725
726	/**
727	* The shadow page pool instance data.
728	*
729	* It's all one big allocation made at init time, except for the
730	* pages that is. The user nodes follows immediatly after the
731	* page structures.
732	*/
733	typedef struct PGMPOOL
734	{
735	/** The VM handle - HC Ptr. */
736	HCPTRTYPE(PVM) pVMHC;
737	/** The VM handle - GC Ptr. */
738	GCPTRTYPE(PVM) pVMGC;
739	/** The max pool size. This includes the special IDs. */
740	uint16_t cMaxPages;
741	/** The current pool size. */
742	uint16_t cCurPages;
743	/** The head of the free page list. */
744	uint16_t iFreeHead;
745	/* Padding. */
746	uint16_t u16Padding;
747	#ifdef PGMPOOL_WITH_USER_TRACKING
748	/** Head of the chain of free user nodes. */
749	uint16_t iUserFreeHead;
750	/** The number of user nodes we've allocated. */
751	uint16_t cMaxUsers;
752	/** The number of present page table entries in the entire pool. */
753	uint32_t cPresent;
754	/** Pointer to the array of user nodes - GC pointer. */
755	GCPTRTYPE(PPGMPOOLUSER) paUsersGC;
756	/** Pointer to the array of user nodes - HC pointer. */
757	HCPTRTYPE(PPGMPOOLUSER) paUsersHC;
758	#endif /* PGMPOOL_WITH_USER_TRACKING */
759	#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
760	/** Head of the chain of free phys ext nodes. */
761	uint16_t iPhysExtFreeHead;
762	/** The number of user nodes we've allocated. */
763	uint16_t cMaxPhysExts;
764	/** Pointer to the array of physical xref extent - GC pointer. */
765	GCPTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsGC;
766	/** Pointer to the array of physical xref extent nodes - HC pointer. */
767	HCPTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsHC;
768	#endif /* PGMPOOL_WITH_GCPHYS_TRACKING */
769	#ifdef PGMPOOL_WITH_CACHE
770	/** Hash table for GCPhys addresses. */
771	uint16_t aiHash[PGMPOOL_HASH_SIZE];
772	/** The head of the age list. */
773	uint16_t iAgeHead;
774	/** The tail of the age list. */
775	uint16_t iAgeTail;
776	/** Set if the cache is enabled. */
777	bool fCacheEnabled;
778	#endif /* PGMPOOL_WITH_CACHE */
779	#ifdef PGMPOOL_WITH_MONITORING
780	/** Head of the list of modified pages. */
781	uint16_t iModifiedHead;
782	/** The current number of modified pages. */
783	uint16_t cModifiedPages;
784	/** Access handler, GC. */
785	GCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnAccessHandlerGC;
786	/** Access handler, R0. */
787	R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnAccessHandlerR0;
788	/** Access handler, R3. */
789	HCPTRTYPE(PFNPGMR3PHYSHANDLER) pfnAccessHandlerR3;
790	/** The access handler description (HC ptr). */
791	HCPTRTYPE(const char *) pszAccessHandler;
792	#endif /* PGMPOOL_WITH_MONITORING */
793	/** The number of pages currently in use. */
794	uint16_t cUsedPages;
795	#ifdef VBOX_WITH_STATISTICS
796	/** The high wather mark for cUsedPages. */
797	uint16_t cUsedPagesHigh;
798	uint32_t Alignment1; /*< Align the next member on a 64-bit boundrary. /
799	/** Profiling pgmPoolAlloc(). */
800	STAMPROFILEADV StatAlloc;
801	/** Profiling pgmPoolClearAll(). */
802	STAMPROFILE StatClearAll;
803	/** Profiling pgmPoolFlushAllInt(). */
804	STAMPROFILE StatFlushAllInt;
805	/** Profiling pgmPoolFlushPage(). */
806	STAMPROFILE StatFlushPage;
807	/** Profiling pgmPoolFree(). */
808	STAMPROFILE StatFree;
809	/** Profiling time spent zeroing pages. */
810	STAMPROFILE StatZeroPage;
811	# ifdef PGMPOOL_WITH_USER_TRACKING
812	/** Profiling of pgmPoolTrackDeref. */
813	STAMPROFILE StatTrackDeref;
814	/** Profiling pgmTrackFlushGCPhysPT. */
815	STAMPROFILE StatTrackFlushGCPhysPT;
816	/** Profiling pgmTrackFlushGCPhysPTs. */
817	STAMPROFILE StatTrackFlushGCPhysPTs;
818	/** Profiling pgmTrackFlushGCPhysPTsSlow. */
819	STAMPROFILE StatTrackFlushGCPhysPTsSlow;
820	/** Number of times we've been out of user records. */
821	STAMCOUNTER StatTrackFreeUpOneUser;
822	# endif
823	# ifdef PGMPOOL_WITH_GCPHYS_TRACKING
824	/** Profiling deref activity related tracking GC physical pages. */
825	STAMPROFILE StatTrackDerefGCPhys;
826	/** Number of linear searches for a HCPhys in the ram ranges. */
827	STAMCOUNTER StatTrackLinearRamSearches;
828	/** The number of failing pgmPoolTrackPhysExtAlloc calls. */
829	STAMCOUNTER StamTrackPhysExtAllocFailures;
830	# endif
831	# ifdef PGMPOOL_WITH_MONITORING
832	/** Profiling the GC PT access handler. */
833	STAMPROFILE StatMonitorGC;
834	/** Times we've failed interpreting the instruction. */
835	STAMCOUNTER StatMonitorGCEmulateInstr;
836	/** Profiling the pgmPoolFlushPage calls made from the GC PT access handler. */
837	STAMPROFILE StatMonitorGCFlushPage;
838	/** Times we've detected fork(). */
839	STAMCOUNTER StatMonitorGCFork;
840	/** Profiling the GC access we've handled (except REP STOSD). */
841	STAMPROFILE StatMonitorGCHandled;
842	/** Times we've failed interpreting a patch code instruction. */
843	STAMCOUNTER StatMonitorGCIntrFailPatch1;
844	/** Times we've failed interpreting a patch code instruction during flushing. */
845	STAMCOUNTER StatMonitorGCIntrFailPatch2;
846	/** The number of times we've seen rep prefixes we can't handle. */
847	STAMCOUNTER StatMonitorGCRepPrefix;
848	/** Profiling the REP STOSD cases we've handled. */
849	STAMPROFILE StatMonitorGCRepStosd;
850
851	/** Profiling the HC PT access handler. */
852	STAMPROFILE StatMonitorHC;
853	/** Times we've failed interpreting the instruction. */
854	STAMCOUNTER StatMonitorHCEmulateInstr;
855	/** Profiling the pgmPoolFlushPage calls made from the HC PT access handler. */
856	STAMPROFILE StatMonitorHCFlushPage;
857	/** Times we've detected fork(). */
858	STAMCOUNTER StatMonitorHCFork;
859	/** Profiling the HC access we've handled (except REP STOSD). */
860	STAMPROFILE StatMonitorHCHandled;
861	/** The number of times we've seen rep prefixes we can't handle. */
862	STAMCOUNTER StatMonitorHCRepPrefix;
863	/** Profiling the REP STOSD cases we've handled. */
864	STAMPROFILE StatMonitorHCRepStosd;
865	/** The number of times we're called in an async thread an need to flush. */
866	STAMCOUNTER StatMonitorHCAsync;
867	/** The high wather mark for cModifiedPages. */
868	uint16_t cModifiedPagesHigh;
869	uint16_t Alignment2[3]; /*< Align the next member on a 64-bit boundrary. /
870	# endif
871	# ifdef PGMPOOL_WITH_CACHE
872	/** The number of cache hits. */
873	STAMCOUNTER StatCacheHits;
874	/** The number of cache misses. */
875	STAMCOUNTER StatCacheMisses;
876	/** The number of times we've got a conflict of 'kind' in the cache. */
877	STAMCOUNTER StatCacheKindMismatches;
878	/** Number of times we've been out of pages. */
879	STAMCOUNTER StatCacheFreeUpOne;
880	/** The number of cacheable allocations. */
881	STAMCOUNTER StatCacheCacheable;
882	/** The number of uncacheable allocations. */
883	STAMCOUNTER StatCacheUncacheable;
884	# endif
885	#elif HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
886	uint32_t Alignment1; /*< Align the next member on a 64-bit boundrary. /
887	#endif
888	/** The AVL tree for looking up a page by its HC physical address. */
889	AVLOHCPHYSTREE HCPhysTree;
890	uint32_t Alignment3; /*< Align the next member on a 64-bit boundrary. /
891	/** Array of pages. (cMaxPages in length)
892	* The Id is the index into thist array.
893	*/
894	PGMPOOLPAGE aPages[PGMPOOL_IDX_FIRST];
895	} PGMPOOL, PPGMPOOL, *PPPGMPOOL;
896
897
898	/** @def PGMPOOL_PAGE_2_PTR
899	* Maps a pool page pool into the current context.
900	*
901	* @returns VBox status code.
902	* @param pVM The VM handle.
903	* @param pPage The pool page.
904	*
905	* @remark In HC this uses PGMGCDynMapHCPage(), so it will consume of the
906	* small page window employeed by that function. Be careful.
907	* @remark There is no need to assert on the result.
908	*/
909	#ifdef IN_GC
910	# define PGMPOOL_PAGE_2_PTR(pVM, pPage) pgmGCPoolMapPage((pVM), (pPage))
911	#else
912	# define PGMPOOL_PAGE_2_PTR(pVM, pPage) ((pPage)->pvPageHC)
913	#endif
914
915
916	/**
917	* Trees are using self relative offsets as pointers.
918	* So, all its data, including the root pointer, must be in the heap for HC and GC
919	* to have the same layout.
920	*/
921	typedef struct PGMTREES
922	{
923	/** Physical access handlers (AVL range+offsetptr tree). */
924	AVLROGCPHYSTREE PhysHandlers;
925	/** Virtual access handlers (AVL range + GC ptr tree). */
926	AVLROGCPTRTREE VirtHandlers;
927	/** Virtual access handlers (Phys range AVL range + offsetptr tree). */
928	AVLROGCPHYSTREE PhysToVirtHandlers;
929	uint32_t auPadding[1];
930	} PGMTREES;
931	/** Pointer to PGM trees. */
932	typedef PGMTREES *PPGMTREES;
933
934
935	/** @name Paging mode macros
936	* @{ */
937	#ifdef IN_GC
938	# define PGM_CTX(a,b) a##GC##b
939	# define PGM_CTX_STR(a,b) a "GC" b
940	# define PGM_CTX_DECL(type) PGMGCDECL(type)
941	#else
942	# ifdef IN_RING3
943	# define PGM_CTX(a,b) a##R3##b
944	# define PGM_CTX_STR(a,b) a "R3" b
945	# define PGM_CTX_DECL(type) DECLCALLBACK(type)
946	# else
947	# define PGM_CTX(a,b) a##R0##b
948	# define PGM_CTX_STR(a,b) a "R0" b
949	# define PGM_CTX_DECL(type) PGMDECL(type)
950	# endif
951	#endif
952
953	#define PGM_GST_NAME_REAL(name) PGM_CTX(pgm,GstReal##name)
954	#define PGM_GST_NAME_GC_REAL_STR(name) "pgmGCGstReal" #name
955	#define PGM_GST_NAME_R0_REAL_STR(name) "pgmR0GstReal" #name
956	#define PGM_GST_NAME_PROT(name) PGM_CTX(pgm,GstProt##name)
957	#define PGM_GST_NAME_GC_PROT_STR(name) "pgmGCGstProt" #name
958	#define PGM_GST_NAME_R0_PROT_STR(name) "pgmR0GstProt" #name
959	#define PGM_GST_NAME_32BIT(name) PGM_CTX(pgm,Gst32Bit##name)
960	#define PGM_GST_NAME_GC_32BIT_STR(name) "pgmGCGst32Bit" #name
961	#define PGM_GST_NAME_R0_32BIT_STR(name) "pgmR0Gst32Bit" #name
962	#define PGM_GST_NAME_PAE(name) PGM_CTX(pgm,GstPAE##name)
963	#define PGM_GST_NAME_GC_PAE_STR(name) "pgmGCGstPAE" #name
964	#define PGM_GST_NAME_R0_PAE_STR(name) "pgmR0GstPAE" #name
965	#define PGM_GST_NAME_AMD64(name) PGM_CTX(pgm,GstAMD64##name)
966	#define PGM_GST_NAME_GC_AMD64_STR(name) "pgmGCGstAMD64" #name
967	#define PGM_GST_NAME_R0_AMD64_STR(name) "pgmR0GstAMD64" #name
968	#define PGM_GST_PFN(name, pVM) ((pVM)->pgm.s.PGM_CTX(pfn,Gst##name))
969	#define PGM_GST_DECL(type, name) PGM_CTX_DECL(type) PGM_GST_NAME(name)
970
971	#define PGM_SHW_NAME_32BIT(name) PGM_CTX(pgm,Shw32Bit##name)
972	#define PGM_SHW_NAME_GC_32BIT_STR(name) "pgmGCShw32Bit" #name
973	#define PGM_SHW_NAME_R0_32BIT_STR(name) "pgmR0Shw32Bit" #name
974	#define PGM_SHW_NAME_PAE(name) PGM_CTX(pgm,ShwPAE##name)
975	#define PGM_SHW_NAME_GC_PAE_STR(name) "pgmGCShwPAE" #name
976	#define PGM_SHW_NAME_R0_PAE_STR(name) "pgmR0ShwPAE" #name
977	#define PGM_SHW_NAME_AMD64(name) PGM_CTX(pgm,ShwAMD64##name)
978	#define PGM_SHW_NAME_GC_AMD64_STR(name) "pgmGCShwAMD64" #name
979	#define PGM_SHW_NAME_R0_AMD64_STR(name) "pgmR0ShwAMD64" #name
980	#define PGM_SHW_DECL(type, name) PGM_CTX_DECL(type) PGM_SHW_NAME(name)
981	#define PGM_SHW_PFN(name, pVM) ((pVM)->pgm.s.PGM_CTX(pfn,Shw##name))
982
983	/* Shw_Gst */
984	#define PGM_BTH_NAME_32BIT_REAL(name) PGM_CTX(pgm,Bth32BitReal##name)
985	#define PGM_BTH_NAME_32BIT_PROT(name) PGM_CTX(pgm,Bth32BitProt##name)
986	#define PGM_BTH_NAME_32BIT_32BIT(name) PGM_CTX(pgm,Bth32Bit32Bit##name)
987	#define PGM_BTH_NAME_PAE_REAL(name) PGM_CTX(pgm,BthPAEReal##name)
988	#define PGM_BTH_NAME_PAE_PROT(name) PGM_CTX(pgm,BthPAEProt##name)
989	#define PGM_BTH_NAME_PAE_32BIT(name) PGM_CTX(pgm,BthPAE32Bit##name)
990	#define PGM_BTH_NAME_PAE_PAE(name) PGM_CTX(pgm,BthPAEPAE##name)
991	#define PGM_BTH_NAME_AMD64_REAL(name) PGM_CTX(pgm,BthAMD64Real##name)
992	#define PGM_BTH_NAME_AMD64_PROT(name) PGM_CTX(pgm,BthAMD64Prot##name)
993	#define PGM_BTH_NAME_AMD64_AMD64(name) PGM_CTX(pgm,BthAMD64AMD64##name)
994	#define PGM_BTH_NAME_GC_32BIT_REAL_STR(name) "pgmGCBth32BitReal" #name
995	#define PGM_BTH_NAME_GC_32BIT_PROT_STR(name) "pgmGCBth32BitProt" #name
996	#define PGM_BTH_NAME_GC_32BIT_32BIT_STR(name) "pgmGCBth32Bit32Bit" #name
997	#define PGM_BTH_NAME_GC_PAE_REAL_STR(name) "pgmGCBthPAEReal" #name
998	#define PGM_BTH_NAME_GC_PAE_PROT_STR(name) "pgmGCBthPAEProt" #name
999	#define PGM_BTH_NAME_GC_PAE_32BIT_STR(name) "pgmGCBthPAE32Bit" #name
1000	#define PGM_BTH_NAME_GC_PAE_PAE_STR(name) "pgmGCBthPAEPAE" #name
1001	#define PGM_BTH_NAME_GC_AMD64_REAL_STR(name) "pgmGCBthAMD64Real" #name
1002	#define PGM_BTH_NAME_GC_AMD64_PROT_STR(name) "pgmGCBthAMD64Prot" #name
1003	#define PGM_BTH_NAME_GC_AMD64_AMD64_STR(name) "pgmGCBthAMD64AMD64" #name
1004	#define PGM_BTH_NAME_R0_32BIT_REAL_STR(name) "pgmR0Bth32BitReal" #name
1005	#define PGM_BTH_NAME_R0_32BIT_PROT_STR(name) "pgmR0Bth32BitProt" #name
1006	#define PGM_BTH_NAME_R0_32BIT_32BIT_STR(name) "pgmR0Bth32Bit32Bit" #name
1007	#define PGM_BTH_NAME_R0_PAE_REAL_STR(name) "pgmR0BthPAEReal" #name
1008	#define PGM_BTH_NAME_R0_PAE_PROT_STR(name) "pgmR0BthPAEProt" #name
1009	#define PGM_BTH_NAME_R0_PAE_32BIT_STR(name) "pgmR0BthPAE32Bit" #name
1010	#define PGM_BTH_NAME_R0_PAE_PAE_STR(name) "pgmR0BthPAEPAE" #name
1011	#define PGM_BTH_NAME_R0_AMD64_REAL_STR(name) "pgmR0BthAMD64Real" #name
1012	#define PGM_BTH_NAME_R0_AMD64_PROT_STR(name) "pgmR0BthAMD64Prot" #name
1013	#define PGM_BTH_NAME_R0_AMD64_AMD64_STR(name) "pgmR0BthAMD64AMD64" #name
1014	#define PGM_BTH_DECL(type, name) PGM_CTX_DECL(type) PGM_BTH_NAME(name)
1015	#define PGM_BTH_PFN(name, pVM) ((pVM)->pgm.s.PGM_CTX(pfn,Bth##name))
1016	/** @} */
1017
1018	/**
1019	* Data for each paging mode.
1020	*/
1021	typedef struct PGMMODEDATA
1022	{
1023	/** The guest mode type. */
1024	uint32_t uGstType;
1025	/** The shadow mode type. */
1026	uint32_t uShwType;
1027
1028	/** @name Function pointers for Shadow paging.
1029	* @{
1030	*/
1031	DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1032	DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVM pVM));
1033	DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1034	DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1035	DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPDEByIndex,(PVM pVM, uint32_t iPD, PX86PDEPAE pPde));
1036	DECLR3CALLBACKMEMBER(int, pfnR3ShwSetPDEByIndex,(PVM pVM, uint32_t iPD, X86PDEPAE Pde));
1037	DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPDEByIndex,(PVM pVM, uint32_t iPD, uint64_t fFlags, uint64_t fMask));
1038
1039	DECLGCCALLBACKMEMBER(int, pfnGCShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1040	DECLGCCALLBACKMEMBER(int, pfnGCShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1041	DECLGCCALLBACKMEMBER(int, pfnGCShwGetPDEByIndex,(PVM pVM, uint32_t iPD, PX86PDEPAE pPde));
1042	DECLGCCALLBACKMEMBER(int, pfnGCShwSetPDEByIndex,(PVM pVM, uint32_t iPD, X86PDEPAE Pde));
1043	DECLGCCALLBACKMEMBER(int, pfnGCShwModifyPDEByIndex,(PVM pVM, uint32_t iPD, uint64_t fFlags, uint64_t fMask));
1044
1045	DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1046	DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1047	DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPDEByIndex,(PVM pVM, uint32_t iPD, PX86PDEPAE pPde));
1048	DECLR0CALLBACKMEMBER(int, pfnR0ShwSetPDEByIndex,(PVM pVM, uint32_t iPD, X86PDEPAE Pde));
1049	DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPDEByIndex,(PVM pVM, uint32_t iPD, uint64_t fFlags, uint64_t fMask));
1050	/** @} */
1051
1052	/** @name Function pointers for Guest paging.
1053	* @{
1054	*/
1055	DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1056	DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVM pVM));
1057	DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1058	DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1059	DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1060	DECLR3CALLBACKMEMBER(int, pfnR3GstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1061	DECLR3CALLBACKMEMBER(int, pfnR3GstUnmonitorCR3,(PVM pVM));
1062	DECLR3CALLBACKMEMBER(int, pfnR3GstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1063	DECLR3CALLBACKMEMBER(int, pfnR3GstUnmapCR3,(PVM pVM));
1064	HCPTRTYPE(PFNPGMR3PHYSHANDLER) pfnHCGstWriteHandlerCR3;
1065	HCPTRTYPE(const char *) pszHCGstWriteHandlerCR3;
1066
1067	DECLGCCALLBACKMEMBER(int, pfnGCGstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1068	DECLGCCALLBACKMEMBER(int, pfnGCGstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1069	DECLGCCALLBACKMEMBER(int, pfnGCGstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1070	DECLGCCALLBACKMEMBER(int, pfnGCGstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1071	DECLGCCALLBACKMEMBER(int, pfnGCGstUnmonitorCR3,(PVM pVM));
1072	DECLGCCALLBACKMEMBER(int, pfnGCGstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1073	DECLGCCALLBACKMEMBER(int, pfnGCGstUnmapCR3,(PVM pVM));
1074	GCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnGCGstWriteHandlerCR3;
1075
1076	DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1077	DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1078	DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1079	DECLR0CALLBACKMEMBER(int, pfnR0GstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1080	DECLR0CALLBACKMEMBER(int, pfnR0GstUnmonitorCR3,(PVM pVM));
1081	DECLR0CALLBACKMEMBER(int, pfnR0GstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1082	DECLR0CALLBACKMEMBER(int, pfnR0GstUnmapCR3,(PVM pVM));
1083	R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnR0GstWriteHandlerCR3;
1084	/** @} */
1085
1086	/** @name Function pointers for Both Shadow and Guest paging.
1087	* @{
1088	*/
1089	DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1090	DECLR3CALLBACKMEMBER(int, pfnR3BthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1091	DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1092	DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVM pVM, uint32_t cr0, uint32_t cr3, uint32_t cr4, bool fGlobal));
1093	DECLR3CALLBACKMEMBER(int, pfnR3BthSyncPage,(PVM pVM, VBOXPDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1094	DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1095	DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1096	#ifdef VBOX_STRICT
1097	DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVM pVM, uint32_t cr3, uint32_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1098	#endif
1099
1100	DECLGCCALLBACKMEMBER(int, pfnGCBthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1101	DECLGCCALLBACKMEMBER(int, pfnGCBthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1102	DECLGCCALLBACKMEMBER(int, pfnGCBthSyncCR3,(PVM pVM, uint32_t cr0, uint32_t cr3, uint32_t cr4, bool fGlobal));
1103	DECLGCCALLBACKMEMBER(int, pfnGCBthSyncPage,(PVM pVM, VBOXPDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1104	DECLGCCALLBACKMEMBER(int, pfnGCBthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1105	DECLGCCALLBACKMEMBER(int, pfnGCBthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1106	#ifdef VBOX_STRICT
1107	DECLGCCALLBACKMEMBER(unsigned, pfnGCBthAssertCR3,(PVM pVM, uint32_t cr3, uint32_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1108	#endif
1109
1110	DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1111	DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1112	DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVM pVM, uint32_t cr0, uint32_t cr3, uint32_t cr4, bool fGlobal));
1113	DECLR0CALLBACKMEMBER(int, pfnR0BthSyncPage,(PVM pVM, VBOXPDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1114	DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1115	DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1116	#ifdef VBOX_STRICT
1117	DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVM pVM, uint32_t cr3, uint32_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1118	#endif
1119	/** @} */
1120	} PGMMODEDATA, *PPGMMODEDATA;
1121
1122
1123
1124	/**
1125	* Converts a PGM pointer into a VM pointer.
1126	* @returns Pointer to the VM structure the PGM is part of.
1127	* @param pPGM Pointer to PGM instance data.
1128	*/
1129	#define PGM2VM(pPGM) ( (PVM)((char*)pPGM - pPGM->offVM) )
1130
1131	/**
1132	* PGM Data (part of VM)
1133	*/
1134	typedef struct PGM
1135	{
1136	/** Offset to the VM structure. */
1137	RTINT offVM;
1138
1139	/*
1140	* This will be redefined at least two more times before we're done, I'm sure.
1141	* The current code is only to get on with the coding.
1142	* - 2004-06-10: initial version, bird.
1143	* - 2004-07-02: 1st time, bird.
1144	* - 2004-10-18: 2nd time, bird.
1145	* - 2005-07-xx: 3rd time, bird.
1146	*/
1147
1148	/** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
1149	GCPTRTYPE(PX86PTE) paDynPageMap32BitPTEsGC;
1150	/** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
1151	GCPTRTYPE(PX86PTEPAE) paDynPageMapPaePTEsGC;
1152
1153	/** The host paging mode. (This is what SUPLib reports.) */
1154	SUPPAGINGMODE enmHostMode;
1155	/** The shadow paging mode. */
1156	PGMMODE enmShadowMode;
1157	/** The guest paging mode. */
1158	PGMMODE enmGuestMode;
1159
1160	/** The current physical address representing in the guest CR3 register. */
1161	RTGCPHYS GCPhysCR3;
1162	/** Pointer to the 5 page CR3 content mapping.
1163	* The first page is always the CR3 (in some form) while the 4 other pages
1164	* are used of the PDs in PAE mode. */
1165	RTGCPTR GCPtrCR3Mapping;
1166	/** The physical address of the currently monitored guest CR3 page.
1167	* When this value is NIL_RTGCPHYS no page is being monitored. */
1168	RTGCPHYS GCPhysGstCR3Monitored;
1169	#if HC_ARCH_BITS == 64 \|\| GC_ARCH_BITS == 64
1170	RTGCPHYS GCPhysPadding0; /*< alignment padding. /
1171	#endif
1172
1173	/** @name 32-bit Guest Paging.
1174	* @{ */
1175	/** The guest's page directory, HC pointer. */
1176	HCPTRTYPE(PVBOXPD) pGuestPDHC;
1177	/** The guest's page directory, static GC mapping. */
1178	GCPTRTYPE(PVBOXPD) pGuestPDGC;
1179	/** @} */
1180
1181	/** @name PAE Guest Paging.
1182	* @{ */
1183	/** The guest's page directory pointer table, static GC mapping. */
1184	GCPTRTYPE(PX86PDPTR) pGstPaePDPTRGC;
1185	/** The guest's page directory pointer table, HC pointer. */
1186	HCPTRTYPE(PX86PDPTR) pGstPaePDPTRHC;
1187	/** The guest's page directories, HC pointers.
1188	* These are individual pointers and doesn't have to be adjecent.
1189	* These doesn't have to be update to date - use pgmGstGetPaePD() to access them. */
1190	HCPTRTYPE(PX86PDPAE) apGstPaePDsHC[4];
1191	/** The guest's page directories, static GC mapping.
1192	* Unlike the HC array the first entry can be accessed as a 2048 entry PD.
1193	* These doesn't have to be update to date - use pgmGstGetPaePD() to access them. */
1194	GCPTRTYPE(PX86PDPAE) apGstPaePDsGC[4];
1195	/** The physical addresses of the guest page directories (PAE) pointed to by apGstPagePDsHC/GC. */
1196	RTGCPHYS aGCPhysGstPaePDs[4];
1197	/** The physical addresses of the monitored guest page directories (PAE). */
1198	RTGCPHYS aGCPhysGstPaePDsMonitored[4];
1199	/** @} */
1200
1201
1202	/** @name 32-bit Shadow Paging
1203	* @{ */
1204	/** The 32-Bit PD - HC Ptr. */
1205	HCPTRTYPE(PX86PD) pHC32BitPD;
1206	/** The 32-Bit PD - GC Ptr. */
1207	GCPTRTYPE(PX86PD) pGC32BitPD;
1208	#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
1209	uint32_t u32Padding1; /*< alignment padding. /
1210	#endif
1211	/** The Physical Address (HC) of the 32-Bit PD. */
1212	RTHCPHYS HCPhys32BitPD;
1213	/** @} */
1214
1215	/** @name PAE Shadow Paging
1216	* @{ */
1217	/** The four PDs for the low 4GB - HC Ptr.
1218	* Even though these are 4 pointers, what they point at is a single table.
1219	* Thus, it's possible to walk the 2048 entries starting where apHCPaePDs[0] points. */
1220	HCPTRTYPE(PX86PDPAE) apHCPaePDs[4];
1221	/** The four PDs for the low 4GB - GC Ptr.
1222	* Same kind of mapping as apHCPaePDs. */
1223	GCPTRTYPE(PX86PDPAE) apGCPaePDs[4];
1224	/** The Physical Address (HC) of the four PDs for the low 4GB.
1225	* These are NOT 4 contiguous pages. */
1226	RTHCPHYS aHCPhysPaePDs[4];
1227	/** The PAE PDPTR - HC Ptr. */
1228	HCPTRTYPE(PX86PDPTR) pHCPaePDPTR;
1229	/** The Physical Address (HC) of the PAE PDPTR. */
1230	RTHCPHYS HCPhysPaePDPTR;
1231	/** The PAE PDPTR - GC Ptr. */
1232	GCPTRTYPE(PX86PDPTR) pGCPaePDPTR;
1233	/** @} */
1234
1235	/** @name AMD64 Shadow Paging
1236	* Extends PAE Paging.
1237	* @{ */
1238	/** The Page Map Level 4 table - HC Ptr. */
1239	GCPTRTYPE(PX86PML4) pGCPaePML4;
1240	/** The Page Map Level 4 table - GC Ptr. */
1241	HCPTRTYPE(PX86PML4) pHCPaePML4;
1242	/** The Physical Address (HC) of the Page Map Level 4 table. */
1243	RTHCPHYS HCPhysPaePML4;
1244	/** @}*/
1245
1246	/** @name Function pointers for Shadow paging.
1247	* @{
1248	*/
1249	DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1250	DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVM pVM));
1251	DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1252	DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1253	DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPDEByIndex,(PVM pVM, uint32_t iPD, PX86PDEPAE pPde));
1254	DECLR3CALLBACKMEMBER(int, pfnR3ShwSetPDEByIndex,(PVM pVM, uint32_t iPD, X86PDEPAE Pde));
1255	DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPDEByIndex,(PVM pVM, uint32_t iPD, uint64_t fFlags, uint64_t fMask));
1256
1257	DECLGCCALLBACKMEMBER(int, pfnGCShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1258	DECLGCCALLBACKMEMBER(int, pfnGCShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1259	DECLGCCALLBACKMEMBER(int, pfnGCShwGetPDEByIndex,(PVM pVM, uint32_t iPD, PX86PDEPAE pPde));
1260	DECLGCCALLBACKMEMBER(int, pfnGCShwSetPDEByIndex,(PVM pVM, uint32_t iPD, X86PDEPAE Pde));
1261	DECLGCCALLBACKMEMBER(int, pfnGCShwModifyPDEByIndex,(PVM pVM, uint32_t iPD, uint64_t fFlags, uint64_t fMask));
1262	#if GC_ARCH_BITS == 32 && HC_ARCH_BITS == 64
1263	RTGCPTR alignment0; /*< structure size alignment. /
1264	#endif
1265
1266	DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1267	DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1268	DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPDEByIndex,(PVM pVM, uint32_t iPD, PX86PDEPAE pPde));
1269	DECLR0CALLBACKMEMBER(int, pfnR0ShwSetPDEByIndex,(PVM pVM, uint32_t iPD, X86PDEPAE Pde));
1270	DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPDEByIndex,(PVM pVM, uint32_t iPD, uint64_t fFlags, uint64_t fMask));
1271
1272	/** @} */
1273
1274	/** @name Function pointers for Guest paging.
1275	* @{
1276	*/
1277	DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1278	DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVM pVM));
1279	DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1280	DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1281	DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1282	DECLR3CALLBACKMEMBER(int, pfnR3GstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1283	DECLR3CALLBACKMEMBER(int, pfnR3GstUnmonitorCR3,(PVM pVM));
1284	DECLR3CALLBACKMEMBER(int, pfnR3GstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1285	DECLR3CALLBACKMEMBER(int, pfnR3GstUnmapCR3,(PVM pVM));
1286	HCPTRTYPE(PFNPGMR3PHYSHANDLER) pfnHCGstWriteHandlerCR3;
1287	HCPTRTYPE(const char *) pszHCGstWriteHandlerCR3;
1288
1289	DECLGCCALLBACKMEMBER(int, pfnGCGstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1290	DECLGCCALLBACKMEMBER(int, pfnGCGstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1291	DECLGCCALLBACKMEMBER(int, pfnGCGstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1292	DECLGCCALLBACKMEMBER(int, pfnGCGstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1293	DECLGCCALLBACKMEMBER(int, pfnGCGstUnmonitorCR3,(PVM pVM));
1294	DECLGCCALLBACKMEMBER(int, pfnGCGstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1295	DECLGCCALLBACKMEMBER(int, pfnGCGstUnmapCR3,(PVM pVM));
1296	GCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnGCGstWriteHandlerCR3;
1297
1298	DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1299	DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1300	DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1301	DECLR0CALLBACKMEMBER(int, pfnR0GstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1302	DECLR0CALLBACKMEMBER(int, pfnR0GstUnmonitorCR3,(PVM pVM));
1303	DECLR0CALLBACKMEMBER(int, pfnR0GstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1304	DECLR0CALLBACKMEMBER(int, pfnR0GstUnmapCR3,(PVM pVM));
1305	R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnR0GstWriteHandlerCR3;
1306	/** @} */
1307
1308	/** @name Function pointers for Both Shadow and Guest paging.
1309	* @{
1310	*/
1311	DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1312	DECLR3CALLBACKMEMBER(int, pfnR3BthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1313	DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1314	DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVM pVM, uint32_t cr0, uint32_t cr3, uint32_t cr4, bool fGlobal));
1315	DECLR3CALLBACKMEMBER(int, pfnR3BthSyncPage,(PVM pVM, VBOXPDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1316	DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1317	DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1318	DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVM pVM, uint32_t cr3, uint32_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1319
1320	DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1321	DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1322	DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVM pVM, uint32_t cr0, uint32_t cr3, uint32_t cr4, bool fGlobal));
1323	DECLR0CALLBACKMEMBER(int, pfnR0BthSyncPage,(PVM pVM, VBOXPDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1324	DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1325	DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1326	DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVM pVM, uint32_t cr3, uint32_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1327
1328	DECLGCCALLBACKMEMBER(int, pfnGCBthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1329	DECLGCCALLBACKMEMBER(int, pfnGCBthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1330	DECLGCCALLBACKMEMBER(int, pfnGCBthSyncCR3,(PVM pVM, uint32_t cr0, uint32_t cr3, uint32_t cr4, bool fGlobal));
1331	DECLGCCALLBACKMEMBER(int, pfnGCBthSyncPage,(PVM pVM, VBOXPDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1332	DECLGCCALLBACKMEMBER(int, pfnGCBthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1333	DECLGCCALLBACKMEMBER(int, pfnGCBthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1334	DECLGCCALLBACKMEMBER(unsigned, pfnGCBthAssertCR3,(PVM pVM, uint32_t cr3, uint32_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1335	#if GC_ARCH_BITS == 32 && HC_ARCH_BITS == 64
1336	RTGCPTR alignment2; /*< structure size alignment. /
1337	#endif
1338	/** @} */
1339
1340	/** Pointer to SHW+GST mode data (function pointers).
1341	* The index into this table is made up from */
1342	R3PTRTYPE(PPGMMODEDATA) paModeData;
1343
1344
1345	/** Pointer to the list of RAM ranges (Phys GC -> Phys HC conversion) - for HC.
1346	* This is sorted by physical address and contains no overlaps.
1347	* The memory locks and other conversions are managed by MM at the moment.
1348	*/
1349	HCPTRTYPE(PPGMRAMRANGE) pRamRangesHC;
1350	/** Pointer to the list of RAM ranges (Phys GC -> Phys HC conversion) - for GC.
1351	* This is sorted by physical address and contains no overlaps.
1352	* The memory locks and other conversions are managed by MM at the moment.
1353	*/
1354	GCPTRTYPE(PPGMRAMRANGE) pRamRangesGC;
1355	/** The configured RAM size. */
1356	RTUINT cbRamSize;
1357
1358	/** PGM offset based trees - HC Ptr. */
1359	HCPTRTYPE(PPGMTREES) pTreesHC;
1360	/** PGM offset based trees - GC Ptr. */
1361	GCPTRTYPE(PPGMTREES) pTreesGC;
1362
1363	/** Linked list of GC mappings - for GC.
1364	* The list is sorted ascending on address.
1365	*/
1366	GCPTRTYPE(PPGMMAPPING) pMappingsGC;
1367	/** Linked list of GC mappings - for HC.
1368	* The list is sorted ascending on address.
1369	*/
1370	HCPTRTYPE(PPGMMAPPING) pMappingsHC;
1371
1372	/** If set no conflict checks are required. (boolean) */
1373	bool fMappingsFixed;
1374	/** If set, then no mappings are put into the shadow page table. (boolean) */
1375	bool fDisableMappings;
1376	/** Size of fixed mapping */
1377	uint32_t cbMappingFixed;
1378	/** Base address (GC) of fixed mapping */
1379	RTGCPTR GCPtrMappingFixed;
1380	#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
1381	uint32_t u32Padding0; /*< alignment padding. /
1382	#endif
1383
1384
1385	/** @name Intermediate Context
1386	* @{ */
1387	/** Pointer to the intermediate page directory - Normal. */
1388	HCPTRTYPE(PX86PD) pInterPD;
1389	/** Pointer to the intermedate page tables - Normal.
1390	* There are two page tables, one for the identity mapping and one for
1391	* the host context mapping (of the core code). */
1392	HCPTRTYPE(PX86PT) apInterPTs[2];
1393	/** Pointer to the intermedate page tables - PAE. */
1394	HCPTRTYPE(PX86PTPAE) apInterPaePTs[2];
1395	/** Pointer to the intermedate page directory - PAE. */
1396	HCPTRTYPE(PX86PDPAE) apInterPaePDs[4];
1397	/** Pointer to the intermedate page directory - PAE. */
1398	HCPTRTYPE(PX86PDPTR) pInterPaePDPTR;
1399	/** Pointer to the intermedate page-map level 4 - AMD64. */
1400	HCPTRTYPE(PX86PML4) pInterPaePML4;
1401	/** Pointer to the intermedate page directory - AMD64. */
1402	HCPTRTYPE(PX86PDPTR) pInterPaePDPTR64;
1403	/** The Physical Address (HC) of the intermediate Page Directory - Normal. */
1404	RTHCPHYS HCPhysInterPD;
1405	/** The Physical Address (HC) of the intermediate Page Directory Pointer Table - PAE. */
1406	RTHCPHYS HCPhysInterPaePDPTR;
1407	/** The Physical Address (HC) of the intermediate Page Map Level 4 table - AMD64. */
1408	RTHCPHYS HCPhysInterPaePML4;
1409	/** @} */
1410
1411	/** Base address of the dynamic page mapping area.
1412	* The array is MM_HYPER_DYNAMIC_SIZE bytes big.
1413	*/
1414	GCPTRTYPE(uint8_t *) pbDynPageMapBaseGC;
1415	/** The index of the last entry used in the dynamic page mapping area. */
1416	RTUINT iDynPageMapLast;
1417	/** Cache containing the last entries in the dynamic page mapping area.
1418	* The cache size is covering half of the mapping area. */
1419	RTHCPHYS aHCPhysDynPageMapCache[MM_HYPER_DYNAMIC_SIZE >> (PAGE_SHIFT + 1)];
1420
1421	/** A20 gate mask.
1422	* Our current approach to A20 emulation is to let REM do it and don't bother
1423	* anywhere else. The interesting Guests will be operating with it enabled anyway.
1424	* But whould need arrise, we'll subject physical addresses to this mask. */
1425	RTGCPHYS GCPhysA20Mask;
1426	/** A20 gate state - boolean! */
1427	RTUINT fA20Enabled;
1428
1429	/** What needs syncing (PGM_SYNC_*).
1430	* This is used to queue operations for PGMSyncCR3, PGMInvalidatePage,
1431	* PGMFlushTLB, and PGMR3Load. */
1432	RTUINT fSyncFlags;
1433
1434	#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
1435	RTUINT uPadding3; /*< alignment padding. /
1436	#endif
1437	/** PGM critical section.
1438	* This protects the physical & virtual access handlers, ram ranges,
1439	* and the page flag updating (some of it anyway).
1440	*/
1441	PDMCRITSECT CritSect;
1442
1443	/** Shadow Page Pool - HC Ptr. */
1444	HCPTRTYPE(PPGMPOOL) pPoolHC;
1445	/** Shadow Page Pool - GC Ptr. */
1446	GCPTRTYPE(PPGMPOOL) pPoolGC;
1447
1448	/** Flush the cache on the next access. */
1449	bool fPhysCacheFlushPending;
1450	/** @todo r=bird: Fix member names!*/
1451	/** PGMPhysRead cache */
1452	PGMPHYSCACHE pgmphysreadcache;
1453	/** PGMPhysWrite cache */
1454	PGMPHYSCACHE pgmphyswritecache;
1455
1456	/** @name Release Statistics
1457	* @{ */
1458	/** The number of times the guest has switched mode since last reset or statistics reset. */
1459	STAMCOUNTER cGuestModeChanges;
1460	/** @} */
1461
1462	#ifdef VBOX_WITH_STATISTICS
1463	/** GC: Which statistic this \#PF should be attributed to. */
1464	GCPTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionGC;
1465	RTGCPTR padding0;
1466	/** HC: Which statistic this \#PF should be attributed to. */
1467	HCPTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionHC;
1468	RTHCPTR padding1;
1469	STAMPROFILE StatGCTrap0e; /*< GC: PGMGCTrap0eHandler() profiling. /
1470	STAMPROFILE StatTrap0eCSAM; /*< Profiling of the Trap0eHandler body when the cause is CSAM. /
1471	STAMPROFILE StatTrap0eDirtyAndAccessedBits; /*< Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation. /
1472	STAMPROFILE StatTrap0eGuestTrap; /*< Profiling of the Trap0eHandler body when the cause is a guest trap. /
1473	STAMPROFILE StatTrap0eHndPhys; /*< Profiling of the Trap0eHandler body when the cause is a physical handler. /
1474	STAMPROFILE StatTrap0eHndVirt; /*< Profiling of the Trap0eHandler body when the cause is a virtual handler. /
1475	STAMPROFILE StatTrap0eHndUnhandled; /*< Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page. /
1476	STAMPROFILE StatTrap0eMisc; /*< Profiling of the Trap0eHandler body when the cause is not known. /
1477	STAMPROFILE StatTrap0eOutOfSync; /*< Profiling of the Trap0eHandler body when the cause is an out-of-sync page. /
1478	STAMPROFILE StatTrap0eOutOfSyncHndPhys; /*< Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page. /
1479	STAMPROFILE StatTrap0eOutOfSyncHndVirt; /*< Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page. /
1480	STAMPROFILE StatTrap0eOutOfSyncObsHnd; /*< Profiling of the Trap0eHandler body when the cause is an obsolete handler page. /
1481	STAMPROFILE StatTrap0eSyncPT; /*< Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT. /
1482
1483	STAMCOUNTER StatTrap0eMapHandler; /*< Number of traps due to access handlers in mappings. /
1484	STAMCOUNTER StatGCTrap0eConflicts; /*< GC: The number of times \#PF was caused by an undetected conflict. /
1485
1486	STAMCOUNTER StatGCTrap0eUSNotPresentRead;
1487	STAMCOUNTER StatGCTrap0eUSNotPresentWrite;
1488	STAMCOUNTER StatGCTrap0eUSWrite;
1489	STAMCOUNTER StatGCTrap0eUSReserved;
1490	STAMCOUNTER StatGCTrap0eUSRead;
1491
1492	STAMCOUNTER StatGCTrap0eSVNotPresentRead;
1493	STAMCOUNTER StatGCTrap0eSVNotPresentWrite;
1494	STAMCOUNTER StatGCTrap0eSVWrite;
1495	STAMCOUNTER StatGCTrap0eSVReserved;
1496
1497	STAMCOUNTER StatGCTrap0eUnhandled;
1498	STAMCOUNTER StatGCTrap0eMap;
1499
1500	/** GC: PGMSyncPT() profiling. */
1501	STAMPROFILE StatGCSyncPT;
1502	/** GC: The number of times PGMSyncPT() needed to allocate page tables. */
1503	STAMCOUNTER StatGCSyncPTAlloc;
1504	/** GC: The number of times PGMSyncPT() detected conflicts. */
1505	STAMCOUNTER StatGCSyncPTConflict;
1506	/** GC: The number of times PGMSyncPT() failed. */
1507	STAMCOUNTER StatGCSyncPTFailed;
1508	/** GC: PGMGCInvalidatePage() profiling. */
1509	STAMPROFILE StatGCInvalidatePage;
1510	/** GC: The number of times PGMGCInvalidatePage() was called for a 4KB page. */
1511	STAMCOUNTER StatGCInvalidatePage4KBPages;
1512	/** GC: The number of times PGMGCInvalidatePage() was called for a 4MB page. */
1513	STAMCOUNTER StatGCInvalidatePage4MBPages;
1514	/** GC: The number of times PGMGCInvalidatePage() skipped a 4MB page. */
1515	STAMCOUNTER StatGCInvalidatePage4MBPagesSkip;
1516	/** GC: The number of times PGMGCInvalidatePage() was called for a not accessed page directory. */
1517	STAMCOUNTER StatGCInvalidatePagePDNAs;
1518	/** GC: The number of times PGMGCInvalidatePage() was called for a not present page directory. */
1519	STAMCOUNTER StatGCInvalidatePagePDNPs;
1520	/** GC: The number of times PGMGCInvalidatePage() was called for a page directory containing mappings (no conflict). */
1521	STAMCOUNTER StatGCInvalidatePagePDMappings;
1522	/** GC: The number of times PGMGCInvalidatePage() was called for an out of sync page directory. */
1523	STAMCOUNTER StatGCInvalidatePagePDOutOfSync;
1524	/** HC: The number of times PGMGCInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
1525	STAMCOUNTER StatGCInvalidatePageSkipped;
1526	/** GC: The number of times user page is out of sync was detected in GC. */
1527	STAMCOUNTER StatGCPageOutOfSyncUser;
1528	/** GC: The number of times supervisor page is out of sync was detected in GC. */
1529	STAMCOUNTER StatGCPageOutOfSyncSupervisor;
1530	/** GC: The number of dynamic page mapping cache hits */
1531	STAMCOUNTER StatDynMapCacheMisses;
1532	/** GC: The number of dynamic page mapping cache misses */
1533	STAMCOUNTER StatDynMapCacheHits;
1534	/** GC: The number of times pgmGCGuestPDWriteHandler() was successfully called. */
1535	STAMCOUNTER StatGCGuestCR3WriteHandled;
1536	/** GC: The number of times pgmGCGuestPDWriteHandler() was called and we had to fall back to the recompiler. */
1537	STAMCOUNTER StatGCGuestCR3WriteUnhandled;
1538	/** GC: The number of times pgmGCGuestPDWriteHandler() was called and a conflict was detected. */
1539	STAMCOUNTER StatGCGuestCR3WriteConflict;
1540	/** GC: Number of out-of-sync handled pages. */
1541	STAMCOUNTER StatHandlersOutOfSync;
1542	/** GC: Number of traps due to physical access handlers. */
1543	STAMCOUNTER StatHandlersPhysical;
1544	/** GC: Number of traps due to virtual access handlers. */
1545	STAMCOUNTER StatHandlersVirtual;
1546	/** GC: Number of traps due to virtual access handlers found by physical address. */
1547	STAMCOUNTER StatHandlersVirtualByPhys;
1548	/** GC: Number of traps due to virtual access handlers found by virtual address (without proper physical flags). */
1549	STAMCOUNTER StatHandlersVirtualUnmarked;
1550	/** GC: Number of traps due to access outside range of monitored page(s). */
1551	STAMCOUNTER StatHandlersUnhandled;
1552
1553	/** GC: The number of times pgmGCGuestROMWriteHandler() was successfully called. */
1554	STAMCOUNTER StatGCGuestROMWriteHandled;
1555	/** GC: The number of times pgmGCGuestROMWriteHandler() was called and we had to fall back to the recompiler */
1556	STAMCOUNTER StatGCGuestROMWriteUnhandled;
1557
1558	/** HC: PGMR3InvalidatePage() profiling. */
1559	STAMPROFILE StatHCInvalidatePage;
1560	/** HC: The number of times PGMR3InvalidatePage() was called for a 4KB page. */
1561	STAMCOUNTER StatHCInvalidatePage4KBPages;
1562	/** HC: The number of times PGMR3InvalidatePage() was called for a 4MB page. */
1563	STAMCOUNTER StatHCInvalidatePage4MBPages;
1564	/** HC: The number of times PGMR3InvalidatePage() skipped a 4MB page. */
1565	STAMCOUNTER StatHCInvalidatePage4MBPagesSkip;
1566	/** HC: The number of times PGMR3InvalidatePage() was called for a not accessed page directory. */
1567	STAMCOUNTER StatHCInvalidatePagePDNAs;
1568	/** HC: The number of times PGMR3InvalidatePage() was called for a not present page directory. */
1569	STAMCOUNTER StatHCInvalidatePagePDNPs;
1570	/** HC: The number of times PGMR3InvalidatePage() was called for a page directory containing mappings (no conflict). */
1571	STAMCOUNTER StatHCInvalidatePagePDMappings;
1572	/** HC: The number of times PGMGCInvalidatePage() was called for an out of sync page directory. */
1573	STAMCOUNTER StatHCInvalidatePagePDOutOfSync;
1574	/** HC: The number of times PGMR3InvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
1575	STAMCOUNTER StatHCInvalidatePageSkipped;
1576	/** HC: PGMR3SyncPT() profiling. */
1577	STAMPROFILE StatHCSyncPT;
1578	/** HC: pgmr3SyncPTResolveConflict() profiling (includes the entire relocation). */
1579	STAMPROFILE StatHCResolveConflict;
1580	/** HC: Number of times PGMR3CheckMappingConflicts() detected a conflict. */
1581	STAMCOUNTER StatHCDetectedConflicts;
1582	/** HC: The total number of times pgmHCGuestPDWriteHandler() was called. */
1583	STAMCOUNTER StatHCGuestPDWrite;
1584	/** HC: The number of times pgmHCGuestPDWriteHandler() detected a conflict */
1585	STAMCOUNTER StatHCGuestPDWriteConflict;
1586
1587	/** HC: The number of pages marked not present for accessed bit emulation. */
1588	STAMCOUNTER StatHCAccessedPage;
1589	/** HC: The number of pages marked read-only for dirty bit tracking. */
1590	STAMCOUNTER StatHCDirtyPage;
1591	/** HC: The number of pages marked read-only for dirty bit tracking. */
1592	STAMCOUNTER StatHCDirtyPageBig;
1593	/** HC: The number of traps generated for dirty bit tracking. */
1594	STAMCOUNTER StatHCDirtyPageTrap;
1595	/** HC: The number of pages already dirty or readonly. */
1596	STAMCOUNTER StatHCDirtyPageSkipped;
1597
1598	/** GC: The number of pages marked not present for accessed bit emulation. */
1599	STAMCOUNTER StatGCAccessedPage;
1600	/** GC: The number of pages marked read-only for dirty bit tracking. */
1601	STAMCOUNTER StatGCDirtyPage;
1602	/** GC: The number of pages marked read-only for dirty bit tracking. */
1603	STAMCOUNTER StatGCDirtyPageBig;
1604	/** GC: The number of traps generated for dirty bit tracking. */
1605	STAMCOUNTER StatGCDirtyPageTrap;
1606	/** GC: The number of pages already dirty or readonly. */
1607	STAMCOUNTER StatGCDirtyPageSkipped;
1608	/** GC: The number of pages marked dirty because of write accesses. */
1609	STAMCOUNTER StatGCDirtiedPage;
1610	/** GC: The number of pages already marked dirty because of write accesses. */
1611	STAMCOUNTER StatGCPageAlreadyDirty;
1612	/** GC: The number of real pages faults during dirty bit tracking. */
1613	STAMCOUNTER StatGCDirtyTrackRealPF;
1614
1615	/** GC: Profiling of the PGMTrackDirtyBit() body */
1616	STAMPROFILE StatGCDirtyBitTracking;
1617	/** HC: Profiling of the PGMTrackDirtyBit() body */
1618	STAMPROFILE StatHCDirtyBitTracking;
1619
1620	/** GC: Profiling of the PGMGstModifyPage() body */
1621	STAMPROFILE StatGCGstModifyPage;
1622	/** HC: Profiling of the PGMGstModifyPage() body */
1623	STAMPROFILE StatHCGstModifyPage;
1624
1625	/** GC: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
1626	STAMCOUNTER StatGCSyncPagePDNAs;
1627	/** GC: The number of time we've encountered an out-of-sync PD in SyncPage. */
1628	STAMCOUNTER StatGCSyncPagePDOutOfSync;
1629	/** HC: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
1630	STAMCOUNTER StatHCSyncPagePDNAs;
1631	/** HC: The number of time we've encountered an out-of-sync PD in SyncPage. */
1632	STAMCOUNTER StatHCSyncPagePDOutOfSync;
1633
1634	STAMCOUNTER StatSynPT4kGC;
1635	STAMCOUNTER StatSynPT4kHC;
1636	STAMCOUNTER StatSynPT4MGC;
1637	STAMCOUNTER StatSynPT4MHC;
1638
1639	/** Profiling of the PGMFlushTLB() body. */
1640	STAMPROFILE StatFlushTLB;
1641	/** The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) */
1642	STAMCOUNTER StatFlushTLBNewCR3;
1643	/** The number of times PGMFlushTLB was called with a new CR3, global. (switch) */
1644	STAMCOUNTER StatFlushTLBNewCR3Global;
1645	/** The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) */
1646	STAMCOUNTER StatFlushTLBSameCR3;
1647	/** The number of times PGMFlushTLB was called with the same CR3, global. (flush) */
1648	STAMCOUNTER StatFlushTLBSameCR3Global;
1649
1650	STAMPROFILE StatGCSyncCR3; /*< GC: PGMSyncCR3() profiling. /
1651	STAMPROFILE StatGCSyncCR3Handlers; /*< GC: Profiling of the PGMSyncCR3() update handler section. /
1652	STAMPROFILE StatGCSyncCR3HandlerVirtualReset; /*< GC: Profiling of the virtual handler resets. /
1653	STAMPROFILE StatGCSyncCR3HandlerVirtualUpdate; /*< GC: Profiling of the virtual handler updates. /
1654	STAMCOUNTER StatGCSyncCR3Global; /*< GC: The number of global CR3 syncs. /
1655	STAMCOUNTER StatGCSyncCR3NotGlobal; /*< GC: The number of non-global CR3 syncs. /
1656	STAMCOUNTER StatGCSyncCR3DstFreed; /*< GC: The number of times we've had to free a shadow entry. /
1657	STAMCOUNTER StatGCSyncCR3DstFreedSrcNP; /*< GC: The number of times we've had to free a shadow entry for which the source entry was not present. /
1658	STAMCOUNTER StatGCSyncCR3DstNotPresent; /*< GC: The number of times we've encountered a not present shadow entry for a present guest entry. /
1659	STAMCOUNTER StatGCSyncCR3DstSkippedGlobalPD; /*< GC: The number of times a global page directory wasn't flushed. /
1660	STAMCOUNTER StatGCSyncCR3DstSkippedGlobalPT; /*< GC: The number of times a page table with only global entries wasn't flushed. /
1661	STAMCOUNTER StatGCSyncCR3DstCacheHit; /*< GC: The number of times we got some kind of cache hit on a page table. /
1662
1663	STAMPROFILE StatHCSyncCR3; /*< HC: PGMSyncCR3() profiling. /
1664	STAMPROFILE StatHCSyncCR3Handlers; /*< HC: Profiling of the PGMSyncCR3() update handler section. /
1665	STAMPROFILE StatHCSyncCR3HandlerVirtualReset; /*< HC: Profiling of the virtual handler resets. /
1666	STAMPROFILE StatHCSyncCR3HandlerVirtualUpdate; /*< HC: Profiling of the virtual handler updates. /
1667	STAMCOUNTER StatHCSyncCR3Global; /*< HC: The number of global CR3 syncs. /
1668	STAMCOUNTER StatHCSyncCR3NotGlobal; /*< HC: The number of non-global CR3 syncs. /
1669	STAMCOUNTER StatHCSyncCR3DstFreed; /*< HC: The number of times we've had to free a shadow entry. /
1670	STAMCOUNTER StatHCSyncCR3DstFreedSrcNP; /*< HC: The number of times we've had to free a shadow entry for which the source entry was not present. /
1671	STAMCOUNTER StatHCSyncCR3DstNotPresent; /*< HC: The number of times we've encountered a not present shadow entry for a present guest entry. /
1672	STAMCOUNTER StatHCSyncCR3DstSkippedGlobalPD; /*< HC: The number of times a global page directory wasn't flushed. /
1673	STAMCOUNTER StatHCSyncCR3DstSkippedGlobalPT; /*< HC: The number of times a page table with only global entries wasn't flushed. /
1674	STAMCOUNTER StatHCSyncCR3DstCacheHit; /*< HC: The number of times we got some kind of cache hit on a page table. /
1675
1676	/** GC: Profiling of pgmHandlerVirtualFindByPhysAddr. */
1677	STAMPROFILE StatVirtHandleSearchByPhysGC;
1678	/** HC: Profiling of pgmHandlerVirtualFindByPhysAddr. */
1679	STAMPROFILE StatVirtHandleSearchByPhysHC;
1680	/** HC: The number of times PGMR3HandlerPhysicalReset is called. */
1681	STAMCOUNTER StatHandlePhysicalReset;
1682
1683	STAMPROFILE StatCheckPageFault;
1684	STAMPROFILE StatLazySyncPT;
1685	STAMPROFILE StatMapping;
1686	STAMPROFILE StatOutOfSync;
1687	STAMPROFILE StatHandlers;
1688	STAMPROFILE StatEIPHandlers;
1689	STAMPROFILE StatHCPrefetch;
1690
1691	# ifdef PGMPOOL_WITH_GCPHYS_TRACKING
1692	/** The number of first time shadowings. */
1693	STAMCOUNTER StatTrackVirgin;
1694	/** The number of times switching to cRef2, i.e. the page is being shadowed by two PTs. */
1695	STAMCOUNTER StatTrackAliased;
1696	/** The number of times we're tracking using cRef2. */
1697	STAMCOUNTER StatTrackAliasedMany;
1698	/** The number of times we're hitting pages which has overflowed cRef2. */
1699	STAMCOUNTER StatTrackAliasedLots;
1700	/** The number of times the extent list grows to long. */
1701	STAMCOUNTER StatTrackOverflows;
1702	/** Profiling of SyncPageWorkerTrackDeref (expensive). */
1703	STAMPROFILE StatTrackDeref;
1704	# endif
1705
1706	/** Allocated mbs of guest ram */
1707	STAMCOUNTER StatDynRamTotal;
1708	/** Nr of pgmr3PhysGrowRange calls. */
1709	STAMCOUNTER StatDynRamGrow;
1710
1711	STAMCOUNTER StatGCTrap0ePD[X86_PG_ENTRIES];
1712	STAMCOUNTER StatGCSyncPtPD[X86_PG_ENTRIES];
1713	STAMCOUNTER StatGCSyncPagePD[X86_PG_ENTRIES];
1714	#endif
1715	} PGM, *PPGM;
1716
1717
1718	/** @name PGM::fSyncFlags Flags
1719	* @{
1720	*/
1721	/** Updates the MM_RAM_FLAGS_VIRTUAL_HANDLER page bit. */
1722	#define PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL BIT(0)
1723	/** Always sync CR3. */
1724	#define PGM_SYNC_ALWAYS BIT(1)
1725	/** Check monitoring on next CR3 (re)load and invalidate page. */
1726	#define PGM_SYNC_MONITOR_CR3 BIT(2)
1727	/** Clear the page pool (a light weight flush). */
1728	#define PGM_SYNC_CLEAR_PGM_POOL BIT(8)
1729	/** @} */
1730
1731
1732	__BEGIN_DECLS
1733
1734	PGMGCDECL(int) pgmGCGuestPDWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, void pvFault, RTGCPHYS GCPhysFault, void pvUser);
1735	PGMDECL(int) pgmGuestROMWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, void pvFault, RTGCPHYS GCPhysFault, void pvUser);
1736	PGMGCDECL(int) pgmCachePTWriteGC(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
1737	int pgmR3SyncPTResolveConflict(PVM pVM, PPGMMAPPING pMapping, PVBOXPD pPDSrc, int iPDOld);
1738	PPGMMAPPING pgmGetMapping(PVM pVM, RTGCPTR GCPtr);
1739	void pgmR3MapRelocate(PVM pVM, PPGMMAPPING pMapping, int iPDOld, int iPDNew);
1740	int pgmR3ChangeMode(PVM pVM, PGMMODE enmGuestMode);
1741	int pgmLock(PVM pVM);
1742	void pgmUnlock(PVM pVM);
1743
1744	void pgmR3HandlerPhysicalUpdateAll(PVM pVM);
1745	int pgmHandlerVirtualFindByPhysAddr(PVM pVM, RTGCPHYS GCPhys, PPGMVIRTHANDLER ppVirt, unsigned piPage);
1746	DECLCALLBACK(int) pgmHandlerVirtualResetOne(PAVLROGCPTRNODECORE pNode, void *pvUser);
1747	#ifdef VBOX_STRICT
1748	void pgmHandlerVirtualDumpPhysPages(PVM pVM);
1749	#else
1750	# define pgmHandlerVirtualDumpPhysPages(a) do { } while (0)
1751	#endif
1752	DECLCALLBACK(void) pgmR3InfoHandlers(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
1753
1754
1755	#ifdef IN_RING3
1756	int pgmr3PhysGrowRange(PVM pVM, RTGCPHYS GCPhys);
1757
1758	int pgmR3PoolInit(PVM pVM);
1759	void pgmR3PoolRelocate(PVM pVM);
1760	void pgmR3PoolReset(PVM pVM);
1761
1762	#endif
1763	#ifdef IN_GC
1764	void *pgmGCPoolMapPage(PVM pVM, PPGMPOOLPAGE pPage);
1765	#endif
1766	int pgmPoolAlloc(PVM pVM, RTGCPHYS GCPhys, PGMPOOLKIND enmKind, uint16_t iUser, uint16_t iUserTable, PPPGMPOOLPAGE ppPage);
1767	PPGMPOOLPAGE pgmPoolGetPageByHCPhys(PVM pVM, RTHCPHYS HCPhys);
1768	void pgmPoolFree(PVM pVM, RTHCPHYS HCPhys, uint16_t iUser, uint16_t iUserTable);
1769	void pgmPoolFreeByPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, uint16_t iUser, uint16_t iUserTable);
1770	int pgmPoolFlushPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
1771	void pgmPoolFlushAll(PVM pVM);
1772	void pgmPoolClearAll(PVM pVM);
1773	void pgmPoolTrackFlushGCPhysPT(PVM pVM, PRTHCPHYS pHCPhys, uint16_t iShw, uint16_t cRefs);
1774	void pgmPoolTrackFlushGCPhysPTs(PVM pVM, PRTHCPHYS pHCPhys, uint16_t iPhysExt);
1775	int pgmPoolTrackFlushGCPhysPTsSlow(PVM pVM, PRTHCPHYS pHCPhys);
1776	PPGMPOOLPHYSEXT pgmPoolTrackPhysExtAlloc(PVM pVM, uint16_t *piPhysExt);
1777	void pgmPoolTrackPhysExtFree(PVM pVM, uint16_t iPhysExt);
1778	void pgmPoolTrackPhysExtFreeList(PVM pVM, uint16_t iPhysExt);
1779	uint16_t pgmPoolTrackPhysExtAddref(PVM pVM, uint16_t u16, uint16_t iShwPT);
1780	void pgmPoolTrackPhysExtDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPage, PRTHCPHYS pHCPhys);
1781	#ifdef PGMPOOL_WITH_MONITORING
1782	# ifdef IN_RING3
1783	void pgmPoolMonitorChainChanging(PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTGCPHYS GCPhysFault, RTHCPTR pvAddress, PDISCPUSTATE pCpu);
1784	# else
1785	void pgmPoolMonitorChainChanging(PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTGCPHYS GCPhysFault, RTGCPTR pvAddress, PDISCPUSTATE pCpu);
1786	# endif
1787	int pgmPoolMonitorChainFlush(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
1788	void pgmPoolMonitorModifiedInsert(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
1789	void pgmPoolMonitorModifiedClearAll(PVM pVM);
1790	int pgmPoolMonitorMonitorCR3(PPGMPOOL pPool, uint16_t idxRoot, RTGCPHYS GCPhysCR3);
1791	int pgmPoolMonitorUnmonitorCR3(PPGMPOOL pPool, uint16_t idxRoot);
1792	#endif
1793
1794	__END_DECLS
1795
1796
1797	/**
1798	* Convert GC Phys to HC Phys.
1799	*
1800	* @returns VBox status.
1801	* @param pPGM PGM handle.
1802	* @param GCPhys The GC physical address.
1803	* @param pHCPhys Where to store the corresponding HC physical address.
1804	*/
1805	DECLINLINE(int) PGMRamGCPhys2HCPhys(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPHYS pHCPhys)
1806	{
1807	/*
1808	* Walk range list.
1809	*/
1810	PPGMRAMRANGE pRam = CTXSUFF(pPGM->pRamRanges);
1811	while (pRam)
1812	{
1813	RTGCPHYS off = GCPhys - pRam->GCPhys;
1814	if (off < pRam->cb)
1815	{
1816	unsigned iPage = off >> PAGE_SHIFT;
1817	/* Physical chunk in dynamically allocated range not present? */
1818	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
1819	{
1820	#ifdef IN_RING3
1821	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
1822	#else
1823	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
1824	#endif
1825	if (rc != VINF_SUCCESS)
1826	return rc;
1827	}
1828	*pHCPhys = (pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK) \| (off & PAGE_OFFSET_MASK);
1829	return VINF_SUCCESS;
1830	}
1831
1832	pRam = CTXSUFF(pRam->pNext);
1833	}
1834	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
1835	}
1836
1837
1838	/**
1839	* Convert GC Phys to HC Virt.
1840	*
1841	* @returns VBox status.
1842	* @param pPGM PGM handle.
1843	* @param GCPhys The GC physical address.
1844	* @param pHCPtr Where to store the corresponding HC virtual address.
1845	*/
1846	DECLINLINE(int) PGMRamGCPhys2HCPtr(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPTR pHCPtr)
1847	{
1848	/*
1849	* Walk range list.
1850	*/
1851	PPGMRAMRANGE pRam = CTXSUFF(pPGM->pRamRanges);
1852	while (pRam)
1853	{
1854	RTGCPHYS off = GCPhys - pRam->GCPhys;
1855	if (off < pRam->cb)
1856	{
1857	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
1858	{
1859	unsigned idx = (off >> PGM_DYNAMIC_CHUNK_SHIFT);
1860	/* Physical chunk in dynamically allocated range not present? */
1861	if (RT_UNLIKELY(!CTXSUFF(pRam->pavHCChunk)[idx]))
1862	{
1863	#ifdef IN_RING3
1864	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
1865	#else
1866	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
1867	#endif
1868	if (rc != VINF_SUCCESS)
1869	return rc;
1870	}
1871	*pHCPtr = (RTHCPTR)((RTHCUINTPTR)CTXSUFF(pRam->pavHCChunk)[idx] + (off & PGM_DYNAMIC_CHUNK_OFFSET_MASK));
1872	return VINF_SUCCESS;
1873	}
1874	if (pRam->pvHC)
1875	{
1876	*pHCPtr = (RTHCPTR)((RTHCUINTPTR)pRam->pvHC + off);
1877	return VINF_SUCCESS;
1878	}
1879	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
1880	}
1881
1882	pRam = CTXSUFF(pRam->pNext);
1883	}
1884	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
1885	}
1886
1887
1888	/**
1889	* Convert GC Phys to HC Virt.
1890	*
1891	* @returns VBox status.
1892	* @param PVM VM handle.
1893	* @param pRam Ram range
1894	* @param GCPhys The GC physical address.
1895	* @param pHCPtr Where to store the corresponding HC virtual address.
1896	*/
1897	DECLINLINE(int) PGMRamGCPhys2HCPtr(PVM pVM, PPGMRAMRANGE pRam, RTGCPHYS GCPhys, PRTHCPTR pHCPtr)
1898	{
1899	RTGCPHYS off = GCPhys - pRam->GCPhys;
1900	Assert(off < pRam->cb);
1901
1902	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
1903	{
1904	unsigned idx = (off >> PGM_DYNAMIC_CHUNK_SHIFT);
1905	/* Physical chunk in dynamically allocated range not present? */
1906	if (RT_UNLIKELY(!CTXSUFF(pRam->pavHCChunk)[idx]))
1907	{
1908	#ifdef IN_RING3
1909	int rc = pgmr3PhysGrowRange(pVM, GCPhys);
1910	#else
1911	int rc = CTXALLMID(VMM, CallHost)(pVM, VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
1912	#endif
1913	if (rc != VINF_SUCCESS)
1914	return rc;
1915	}
1916	*pHCPtr = (RTHCPTR)((RTHCUINTPTR)CTXSUFF(pRam->pavHCChunk)[idx] + (off & PGM_DYNAMIC_CHUNK_OFFSET_MASK));
1917	return VINF_SUCCESS;
1918	}
1919	if (pRam->pvHC)
1920	{
1921	*pHCPtr = (RTHCPTR)((RTHCUINTPTR)pRam->pvHC + off);
1922	return VINF_SUCCESS;
1923	}
1924	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
1925	}
1926
1927
1928	/**
1929	* Convert GC Phys to HC Virt and HC Phys.
1930	*
1931	* @returns VBox status.
1932	* @param pPGM PGM handle.
1933	* @param GCPhys The GC physical address.
1934	* @param pHCPtr Where to store the corresponding HC virtual address.
1935	* @param pHCPhys Where to store the HC Physical address and its flags.
1936	*/
1937	DECLINLINE(int) PGMRamGCPhys2HCPtrAndHCPhysWithFlags(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPTR pHCPtr, PRTHCPHYS pHCPhys)
1938	{
1939	/*
1940	* Walk range list.
1941	*/
1942	PPGMRAMRANGE pRam = CTXSUFF(pPGM->pRamRanges);
1943	while (pRam)
1944	{
1945	RTGCPHYS off = GCPhys - pRam->GCPhys;
1946	if (off < pRam->cb)
1947	{
1948	unsigned iPage = off >> PAGE_SHIFT;
1949	/* Physical chunk in dynamically allocated range not present? */
1950	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
1951	{
1952	#ifdef IN_RING3
1953	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
1954	#else
1955	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
1956	#endif
1957	if (rc != VINF_SUCCESS)
1958	return rc;
1959	}
1960	*pHCPhys = pRam->aHCPhys[iPage];
1961
1962	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
1963	{
1964	unsigned idx = (off >> PGM_DYNAMIC_CHUNK_SHIFT);
1965	*pHCPtr = (RTHCPTR)((RTHCUINTPTR)CTXSUFF(pRam->pavHCChunk)[idx] + (off & PGM_DYNAMIC_CHUNK_OFFSET_MASK));
1966	return VINF_SUCCESS;
1967	}
1968	if (pRam->pvHC)
1969	{
1970	*pHCPtr = (RTHCPTR)((RTHCUINTPTR)pRam->pvHC + off);
1971	return VINF_SUCCESS;
1972	}
1973	*pHCPtr = 0;
1974	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
1975	}
1976
1977	pRam = CTXSUFF(pRam->pNext);
1978	}
1979	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
1980	}
1981
1982
1983	/**
1984	* Convert GC Phys page to a page entry pointer.
1985	*
1986	* This is used by code which may have to update the flags.
1987	*
1988	* @returns VBox status.
1989	* @param pPGM PGM handle.
1990	* @param GCPhys The GC physical address.
1991	* @param ppHCPhys Where to store the pointer to the page entry.
1992	*/
1993	DECLINLINE(int) PGMRamGCPhys2PagePtr(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPHYS *ppHCPhys)
1994	{
1995	/*
1996	* Walk range list.
1997	*/
1998	PPGMRAMRANGE pRam = CTXSUFF(pPGM->pRamRanges);
1999	while (pRam)
2000	{
2001	RTGCPHYS off = GCPhys - pRam->GCPhys;
2002	if (off < pRam->cb)
2003	{
2004	unsigned iPage = off >> PAGE_SHIFT;
2005	/* Physical chunk in dynamically allocated range not present? */
2006	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
2007	{
2008	#ifdef IN_RING3
2009	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2010	#else
2011	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2012	#endif
2013	if (rc != VINF_SUCCESS)
2014	return rc;
2015	}
2016	*ppHCPhys = &pRam->aHCPhys[iPage];
2017	return VINF_SUCCESS;
2018	}
2019
2020	pRam = CTXSUFF(pRam->pNext);
2021	}
2022	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2023	}
2024
2025
2026	/**
2027	* Convert GC Phys page to HC Phys page and flags.
2028	*
2029	* @returns VBox status.
2030	* @param pPGM PGM handle.
2031	* @param GCPhys The GC physical address.
2032	* @param pHCPhys Where to store the corresponding HC physical address of the page
2033	* and the page flags.
2034	*/
2035	DECLINLINE(int) PGMRamGCPhys2HCPhysWithFlags(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPHYS pHCPhys)
2036	{
2037	/*
2038	* Walk range list.
2039	*/
2040	PPGMRAMRANGE pRam = CTXSUFF(pPGM->pRamRanges);
2041	while (pRam)
2042	{
2043	RTGCPHYS off = GCPhys - pRam->GCPhys;
2044	if (off < pRam->cb)
2045	{
2046	unsigned iPage = off >> PAGE_SHIFT;
2047	/* Physical chunk in dynamically allocated range not present? */
2048	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
2049	{
2050	#ifdef IN_RING3
2051	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2052	#else
2053	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2054	#endif
2055	if (rc != VINF_SUCCESS)
2056	return rc;
2057	}
2058	*pHCPhys = pRam->aHCPhys[iPage];
2059	return VINF_SUCCESS;
2060	}
2061
2062	pRam = CTXSUFF(pRam->pNext);
2063	}
2064	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2065	}
2066
2067
2068	/**
2069	* Clears flags associated with a RAM address.
2070	*
2071	* @returns VBox status code.
2072	* @param pPGM PGM handle.
2073	* @param GCPhys Guest context physical address.
2074	* @param fFlags fFlags to clear. (Bits 0-11.)
2075	*/
2076	DECLINLINE(int) PGMRamFlagsClearByGCPhys(PPGM pPGM, RTGCPHYS GCPhys, unsigned fFlags)
2077	{
2078	/*
2079	* Walk range list.
2080	*/
2081	PPGMRAMRANGE pRam = CTXSUFF(pPGM->pRamRanges);
2082	while (pRam)
2083	{
2084	RTGCPHYS off = GCPhys - pRam->GCPhys;
2085	if (off < pRam->cb)
2086	{
2087	unsigned iPage = off >> PAGE_SHIFT;
2088	/* Physical chunk in dynamically allocated range not present? */
2089	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
2090	{
2091	#ifdef IN_RING3
2092	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2093	#else
2094	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2095	#endif
2096	if (rc != VINF_SUCCESS)
2097	return rc;
2098	}
2099	fFlags &= ~X86_PTE_PAE_PG_MASK;
2100	pRam->aHCPhys[iPage] &= ~(RTHCPHYS)fFlags;
2101	return VINF_SUCCESS;
2102	}
2103
2104	pRam = CTXSUFF(pRam->pNext);
2105	}
2106	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2107	}
2108
2109
2110	/**
2111	* Clears flags associated with a RAM address.
2112	*
2113	* @returns VBox status code.
2114	* @param pPGM PGM handle.
2115	* @param GCPhys Guest context physical address.
2116	* @param fFlags fFlags to clear. (Bits 0-11.)
2117	* @param ppRamHint Where to read and store the ram list hint.
2118	* The caller initializes this to NULL before the call.
2119	*/
2120	DECLINLINE(int) PGMRamFlagsClearByGCPhysWithHint(PPGM pPGM, RTGCPHYS GCPhys, unsigned fFlags, PPGMRAMRANGE *ppRamHint)
2121	{
2122	/*
2123	* Check the hint.
2124	*/
2125	PPGMRAMRANGE pRam = *ppRamHint;
2126	if (pRam)
2127	{
2128	RTGCPHYS off = GCPhys - pRam->GCPhys;
2129	if (off < pRam->cb)
2130	{
2131	unsigned iPage = off >> PAGE_SHIFT;
2132	/* Physical chunk in dynamically allocated range not present? */
2133	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
2134	{
2135	#ifdef IN_RING3
2136	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2137	#else
2138	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2139	#endif
2140	if (rc != VINF_SUCCESS)
2141	return rc;
2142	}
2143	fFlags &= ~X86_PTE_PAE_PG_MASK;
2144	pRam->aHCPhys[iPage] &= ~(RTHCPHYS)fFlags;
2145	return VINF_SUCCESS;
2146	}
2147	}
2148
2149	/*
2150	* Walk range list.
2151	*/
2152	pRam = CTXSUFF(pPGM->pRamRanges);
2153	while (pRam)
2154	{
2155	RTGCPHYS off = GCPhys - pRam->GCPhys;
2156	if (off < pRam->cb)
2157	{
2158	unsigned iPage = off >> PAGE_SHIFT;
2159	/* Physical chunk in dynamically allocated range not present? */
2160	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
2161	{
2162	#ifdef IN_RING3
2163	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2164	#else
2165	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2166	#endif
2167	if (rc != VINF_SUCCESS)
2168	return rc;
2169	}
2170	fFlags &= ~X86_PTE_PAE_PG_MASK;
2171	pRam->aHCPhys[iPage] &= ~(RTHCPHYS)fFlags;
2172	*ppRamHint = pRam;
2173	return VINF_SUCCESS;
2174	}
2175
2176	pRam = CTXSUFF(pRam->pNext);
2177	}
2178	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2179	}
2180
2181	/**
2182	* Sets (bitwise OR) flags associated with a RAM address.
2183	*
2184	* @returns VBox status code.
2185	* @param pPGM PGM handle.
2186	* @param GCPhys Guest context physical address.
2187	* @param fFlags fFlags to set clear. (Bits 0-11.)
2188	*/
2189	DECLINLINE(int) PGMRamFlagsSetByGCPhys(PPGM pPGM, RTGCPHYS GCPhys, unsigned fFlags)
2190	{
2191	/*
2192	* Walk range list.
2193	*/
2194	PPGMRAMRANGE pRam = CTXSUFF(pPGM->pRamRanges);
2195	while (pRam)
2196	{
2197	RTGCPHYS off = GCPhys - pRam->GCPhys;
2198	if (off < pRam->cb)
2199	{
2200	unsigned iPage = off >> PAGE_SHIFT;
2201	/* Physical chunk in dynamically allocated range not present? */
2202	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
2203	{
2204	#ifdef IN_RING3
2205	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2206	#else
2207	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2208	#endif
2209	if (rc != VINF_SUCCESS)
2210	return rc;
2211	}
2212	fFlags &= ~X86_PTE_PAE_PG_MASK;
2213	pRam->aHCPhys[iPage] \|= fFlags;
2214	return VINF_SUCCESS;
2215	}
2216
2217	pRam = CTXSUFF(pRam->pNext);
2218	}
2219	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2220	}
2221
2222	/**
2223	* Sets (bitwise OR) flags associated with a RAM address.
2224	*
2225	* @returns VBox status code.
2226	* @param pPGM PGM handle.
2227	* @param GCPhys Guest context physical address.
2228	* @param fFlags fFlags to set clear. (Bits 0-11.)
2229	* @param ppRamHint Where to read and store the ram list hint.
2230	* The caller initializes this to NULL before the call.
2231	*/
2232	DECLINLINE(int) PGMRamFlagsSetByGCPhysWithHint(PPGM pPGM, RTGCPHYS GCPhys, unsigned fFlags, PPGMRAMRANGE *ppRamHint)
2233	{
2234	/*
2235	* Check the hint.
2236	*/
2237	PPGMRAMRANGE pRam = *ppRamHint;
2238	if (pRam)
2239	{
2240	RTGCPHYS off = GCPhys - pRam->GCPhys;
2241	if (off < pRam->cb)
2242	{
2243	unsigned iPage = off >> PAGE_SHIFT;
2244	/* Physical chunk in dynamically allocated range not present? */
2245	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
2246	{
2247	#ifdef IN_RING3
2248	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2249	#else
2250	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2251	#endif
2252	if (rc != VINF_SUCCESS)
2253	return rc;
2254	}
2255	fFlags &= ~X86_PTE_PAE_PG_MASK;
2256	pRam->aHCPhys[iPage] \|= fFlags;
2257	return VINF_SUCCESS;
2258	}
2259	}
2260
2261	/*
2262	* Walk range list.
2263	*/
2264	pRam = CTXSUFF(pPGM->pRamRanges);
2265	while (pRam)
2266	{
2267	RTGCPHYS off = GCPhys - pRam->GCPhys;
2268	if (off < pRam->cb)
2269	{
2270	unsigned iPage = off >> PAGE_SHIFT;
2271	/* Physical chunk in dynamically allocated range not present? */
2272	if (RT_UNLIKELY(!(pRam->aHCPhys[iPage] & X86_PTE_PAE_PG_MASK)))
2273	{
2274	#ifdef IN_RING3
2275	int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2276	#else
2277	int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2278	#endif
2279	if (rc != VINF_SUCCESS)
2280	return rc;
2281	}
2282	fFlags &= ~X86_PTE_PAE_PG_MASK;
2283	pRam->aHCPhys[iPage] \|= fFlags;
2284	*ppRamHint = pRam;
2285	return VINF_SUCCESS;
2286	}
2287
2288	pRam = CTXSUFF(pRam->pNext);
2289	}
2290	return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2291	}
2292
2293
2294	/**
2295	* Gets the page directory for the specified address.
2296	*
2297	* @returns Pointer to the page directory in question.
2298	* @returns NULL if the page directory is not present or on an invalid page.
2299	* @param pPGM Pointer to the PGM instance data.
2300	* @param GCPtr The address.
2301	*/
2302	DECLINLINE(PX86PDPAE) pgmGstGetPaePD(PPGM pPGM, RTGCUINTPTR GCPtr)
2303	{
2304	const unsigned iPdPtr = GCPtr >> X86_PDPTR_SHIFT;
2305	if (CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].n.u1Present)
2306	{
2307	if ((CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u & X86_PDPE_PG_MASK) == pPGM->aGCPhysGstPaePDs[iPdPtr])
2308	return CTXSUFF(pPGM->apGstPaePDs)[iPdPtr];
2309
2310	/* cache is out-of-sync. */
2311	PX86PDPAE pPD;
2312	int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u & X86_PDPE_PG_MASK, &pPD);
2313	if (VBOX_SUCCESS(rc))
2314	return pPD;
2315	AssertMsgFailed(("Impossible! rc=%d PDPE=%#llx\n", rc, CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u));
2316	/* returning NIL_RTGCPHYS is ok if we assume it's just an invalid page of some kind emualted as all 0s. */
2317	}
2318	return NULL;
2319	}
2320
2321
2322	/**
2323	* Gets the page directory entry for the specified address.
2324	*
2325	* @returns Pointer to the page directory entry in question.
2326	* @returns NULL if the page directory is not present or on an invalid page.
2327	* @param pPGM Pointer to the PGM instance data.
2328	* @param GCPtr The address.
2329	*/
2330	DECLINLINE(PX86PDEPAE) pgmGstGetPaePDEPtr(PPGM pPGM, RTGCUINTPTR GCPtr)
2331	{
2332	const unsigned iPdPtr = GCPtr >> X86_PDPTR_SHIFT;
2333	if (CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].n.u1Present)
2334	{
2335	const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2336	if ((CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u & X86_PDPE_PG_MASK) == pPGM->aGCPhysGstPaePDs[iPdPtr])
2337	return &CTXSUFF(pPGM->apGstPaePDs)[iPdPtr]->a[iPD];
2338
2339	/* cache is out-of-sync. */
2340	PX86PDPAE pPD;
2341	int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u & X86_PDPE_PG_MASK, &pPD);
2342	if (VBOX_SUCCESS(rc))
2343	return &pPD->a[iPD];
2344	AssertMsgFailed(("Impossible! rc=%d PDPE=%#llx\n", rc, CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u));
2345	/* returning NIL_RTGCPHYS is ok if we assume it's just an invalid page or something which we'll emulate as all 0s. */
2346	}
2347	return NULL;
2348	}
2349
2350
2351	/**
2352	* Gets the page directory entry for the specified address.
2353	*
2354	* @returns The page directory entry in question.
2355	* @returns A non-present entry if the page directory is not present or on an invalid page.
2356	* @param pPGM Pointer to the PGM instance data.
2357	* @param GCPtr The address.
2358	*/
2359	DECLINLINE(uint64_t) pgmGstGetPaePDE(PPGM pPGM, RTGCUINTPTR GCPtr)
2360	{
2361	const unsigned iPdPtr = GCPtr >> X86_PDPTR_SHIFT;
2362	if (CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].n.u1Present)
2363	{
2364	const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
2365	if ((CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u & X86_PDPE_PG_MASK) == pPGM->aGCPhysGstPaePDs[iPdPtr])
2366	return CTXSUFF(pPGM->apGstPaePDs)[iPdPtr]->a[iPD].u;
2367
2368	/* cache is out-of-sync. */
2369	PX86PDPAE pPD;
2370	int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u & X86_PDPE_PG_MASK, &pPD);
2371	if (VBOX_SUCCESS(rc))
2372	return pPD->a[iPD].u;
2373	AssertMsgFailed(("Impossible! rc=%d PDPE=%#llx\n", rc, CTXSUFF(pPGM->pGstPaePDPTR)->a[iPdPtr].u));
2374	}
2375	return 0;
2376	}
2377
2378
2379	/**
2380	* Checks if any of the specified page flags are set for the given page.
2381	*
2382	* @returns true if any of the flags are set.
2383	* @returns false if all the flags are clear.
2384	* @param pPGM PGM handle.
2385	* @param GCPhys The GC physical address.
2386	* @param fFlags The flags to check for.
2387	*/
2388	DECLINLINE(bool) PGMRamTestFlags(PPGM pPGM, RTGCPHYS GCPhys, uint64_t fFlags)
2389	{
2390	/*
2391	* Walk range list.
2392	*/
2393	for (PPGMRAMRANGE pRam = CTXSUFF(pPGM->pRamRanges);
2394	pRam;
2395	pRam = CTXSUFF(pRam->pNext))
2396	{
2397	RTGCPHYS off = GCPhys - pRam->GCPhys;
2398	if (off < pRam->cb)
2399	return (pRam->aHCPhys[off >> PAGE_SHIFT] & fFlags) != 0;
2400	}
2401	return false;
2402	}
2403
2404
2405	/**
2406	* Gets the ram flags for a handler.
2407	*
2408	* @returns The ram flags.
2409	* @param pCur The physical handler in question.
2410	*/
2411	DECLINLINE(unsigned) pgmHandlerPhysicalCalcFlags(PPGMPHYSHANDLER pCur)
2412	{
2413	switch (pCur->enmType)
2414	{
2415	case PGMPHYSHANDLERTYPE_PHYSICAL:
2416	return MM_RAM_FLAGS_PHYSICAL_HANDLER;
2417
2418	case PGMPHYSHANDLERTYPE_PHYSICAL_WRITE:
2419	return MM_RAM_FLAGS_PHYSICAL_HANDLER \| MM_RAM_FLAGS_PHYSICAL_WRITE;
2420
2421	case PGMPHYSHANDLERTYPE_MMIO:
2422	case PGMPHYSHANDLERTYPE_PHYSICAL_ALL:
2423	return MM_RAM_FLAGS_PHYSICAL_HANDLER \| MM_RAM_FLAGS_PHYSICAL_ALL;
2424
2425	default:
2426	AssertFatalMsgFailed(("Invalid type %d\n", pCur->enmType));
2427	}
2428	}
2429
2430
2431	/**
2432	* Clears one physical page of a virtual handler
2433	*
2434	* @param pPGM Pointer to the PGM instance.
2435	* @param pCur Virtual handler structure
2436	* @param iPage Physical page index
2437	*/
2438	DECLINLINE(void) pgmHandlerVirtualClearPage(PPGM pPGM, PPGMVIRTHANDLER pCur, unsigned iPage)
2439	{
2440	const PPGMPHYS2VIRTHANDLER pPhys2Virt = &pCur->aPhysToVirt[iPage];
2441
2442	/*
2443	* Remove the node from the tree (it's supposed to be in the tree if we get here!).
2444	*/
2445	#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
2446	AssertReleaseMsg(pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_IN_TREE,
2447	("pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
2448	pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias));
2449	#endif
2450	if (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_IS_HEAD)
2451	{
2452	/* We're the head of the alias chain. */
2453	PPGMPHYS2VIRTHANDLER pRemove = (PPGMPHYS2VIRTHANDLER)RTAvlroGCPhysRemove(&pPGM->CTXSUFF(pTrees)->PhysToVirtHandlers, pPhys2Virt->Core.Key); NOREF(pRemove);
2454	#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
2455	AssertReleaseMsg(pRemove != NULL,
2456	("pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
2457	pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias));
2458	AssertReleaseMsg(pRemove == pPhys2Virt,
2459	("wanted: pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
2460	" got: pRemove=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
2461	pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias,
2462	pRemove, pRemove->Core.Key, pRemove->Core.KeyLast, pRemove->offVirtHandler, pRemove->offNextAlias));
2463	#endif
2464	if (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
2465	{
2466	/* Insert the next list in the alias chain into the tree. */
2467	PPGMPHYS2VIRTHANDLER pNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPhys2Virt + (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
2468	#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
2469	AssertReleaseMsg(pNext->offNextAlias & PGMPHYS2VIRTHANDLER_IN_TREE,
2470	("pNext=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
2471	pNext, pNext->Core.Key, pNext->Core.KeyLast, pNext->offVirtHandler, pNext->offNextAlias));
2472	#endif
2473	pNext->offNextAlias \|= PGMPHYS2VIRTHANDLER_IS_HEAD;
2474	bool fRc = RTAvlroGCPhysInsert(&pPGM->CTXSUFF(pTrees)->PhysToVirtHandlers, &pNext->Core);
2475	AssertRelease(fRc);
2476	}
2477	}
2478	else
2479	{
2480	/* Locate the previous node in the alias chain. */
2481	PPGMPHYS2VIRTHANDLER pPrev = (PPGMPHYS2VIRTHANDLER)RTAvlroGCPhysGet(&pPGM->CTXSUFF(pTrees)->PhysToVirtHandlers, pPhys2Virt->Core.Key);
2482	#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
2483	AssertReleaseMsg(pPrev != pPhys2Virt,
2484	("pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32} pPrev=%p\n",
2485	pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias, pPrev));
2486	#endif
2487	for (;;)
2488	{
2489	PPGMPHYS2VIRTHANDLER pNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPrev + (pPrev->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
2490	if (pNext == pPhys2Virt)
2491	{
2492	/* unlink. */
2493	LogFlow(("pgmHandlerVirtualClearPage: removed %p:{.offNextAlias=%#RX32} from alias chain. prev %p:{.offNextAlias=%#RX32} [%VGp-%VGp]\n",
2494	pPhys2Virt, pPhys2Virt->offNextAlias, pPrev, pPrev->offNextAlias, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast));
2495	if (!(pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
2496	pPrev->offNextAlias &= ~PGMPHYS2VIRTHANDLER_OFF_MASK;
2497	else
2498	{
2499	PPGMPHYS2VIRTHANDLER pNewNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPhys2Virt + (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
2500	pPrev->offNextAlias = ((intptr_t)pNewNext - (intptr_t)pPrev)
2501	\| (pPrev->offNextAlias & ~PGMPHYS2VIRTHANDLER_OFF_MASK);
2502	}
2503	break;
2504	}
2505
2506	/* next */
2507	if (pNext == pPrev)
2508	{
2509	#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
2510	AssertReleaseMsg(pNext != pPrev,
2511	("pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32} pPrev=%p\n",
2512	pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias, pPrev));
2513	#endif
2514	break;
2515	}
2516	pPrev = pNext;
2517	}
2518	}
2519	Log2(("PHYS2VIRT: Removing %VGp-%VGp %#RX32 %s\n",
2520	pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offNextAlias, HCSTRING(pCur->pszDesc)));
2521	pPhys2Virt->offNextAlias = 0;
2522	pPhys2Virt->Core.KeyLast = NIL_RTGCPHYS; /* require reinsert */
2523
2524	/*
2525	* Clear the ram flags for this page.
2526	*/
2527	int rc = PGMRamFlagsClearByGCPhys(pPGM, pPhys2Virt->Core.Key,
2528	MM_RAM_FLAGS_VIRTUAL_HANDLER \| MM_RAM_FLAGS_VIRTUAL_ALL \| MM_RAM_FLAGS_VIRTUAL_WRITE);
2529	AssertRC(rc);
2530	}
2531
2532
2533	/**
2534	* Internal worker for finding a 'in-use' shadow page give by it's physical address.
2535	*
2536	* @returns Pointer to the shadow page structure.
2537	* @param pPool The pool.
2538	* @param HCPhys The HC physical address of the shadow page.
2539	*/
2540	DECLINLINE(PPGMPOOLPAGE) pgmPoolGetPage(PPGMPOOL pPool, RTHCPHYS HCPhys)
2541	{
2542	/*
2543	* Look up the page.
2544	*/
2545	PPGMPOOLPAGE pPage = (PPGMPOOLPAGE)RTAvloHCPhysGet(&pPool->HCPhysTree, HCPhys & X86_PTE_PAE_PG_MASK);
2546	AssertFatalMsg(pPage && pPage->enmKind != PGMPOOLKIND_FREE, ("HCPhys=%VHp pPage=%p type=%d\n", HCPhys, pPage, (pPage) ? pPage->enmKind : 0));
2547	return pPage;
2548	}
2549
2550
2551	/**
2552	* Internal worker for finding a 'in-use' shadow page give by it's physical address.
2553	*
2554	* @returns Pointer to the shadow page structure.
2555	* @param pPool The pool.
2556	* @param idx The pool page index.
2557	*/
2558	DECLINLINE(PPGMPOOLPAGE) pgmPoolGetPageByIdx(PPGMPOOL pPool, unsigned idx)
2559	{
2560	AssertFatalMsg(idx >= PGMPOOL_IDX_FIRST && idx < pPool->cCurPages, ("idx=%d\n", idx));
2561	return &pPool->aPages[idx];
2562	}
2563
2564
2565	#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
2566	/**
2567	* Clear references to guest physical memory.
2568	*
2569	* @param pPool The pool.
2570	* @param pPage The page.
2571	* @param pHCPhys Pointer to the aHCPhys entry in the ram range.
2572	*/
2573	DECLINLINE(void) pgmTrackDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPage, PRTHCPHYS pHCPhys)
2574	{
2575	/*
2576	* Just deal with the simple case here.
2577	*/
2578	#ifdef LOG_ENABLED
2579	const RTHCPHYS HCPhysOrg = *pHCPhys;
2580	#endif
2581	const unsigned cRefs = *pHCPhys >> MM_RAM_FLAGS_CREFS_SHIFT;
2582	if (cRefs == 1)
2583	{
2584	Assert(pPage->idx == ((*pHCPhys >> MM_RAM_FLAGS_IDX_SHIFT) & MM_RAM_FLAGS_IDX_MASK));
2585	pHCPhys = pHCPhys & MM_RAM_FLAGS_NO_REFS_MASK;
2586	}
2587	else
2588	pgmPoolTrackPhysExtDerefGCPhys(pPool, pPage, pHCPhys);
2589	LogFlow(("pgmTrackDerefGCPhys: pHCPhys=%RHp -> %RHp\n", HCPhysOrg, pHCPhys));
2590	}
2591	#endif
2592
2593
2594	#ifdef PGMPOOL_WITH_CACHE
2595	/**
2596	* Moves the page to the head of the age list.
2597	*
2598	* This is done when the cached page is used in one way or another.
2599	*
2600	* @param pPool The pool.
2601	* @param pPage The cached page.
2602	* @todo inline in PGMInternal.h!
2603	*/
2604	DECLINLINE(void) pgmPoolCacheUsed(PPGMPOOL pPool, PPGMPOOLPAGE pPage)
2605	{
2606	/*
2607	* Move to the head of the age list.
2608	*/
2609	if (pPage->iAgePrev != NIL_PGMPOOL_IDX)
2610	{
2611	/* unlink */
2612	pPool->aPages[pPage->iAgePrev].iAgeNext = pPage->iAgeNext;
2613	if (pPage->iAgeNext != NIL_PGMPOOL_IDX)
2614	pPool->aPages[pPage->iAgeNext].iAgePrev = pPage->iAgePrev;
2615	else
2616	pPool->iAgeTail = pPage->iAgePrev;
2617
2618	/* insert at head */
2619	pPage->iAgePrev = NIL_PGMPOOL_IDX;
2620	pPage->iAgeNext = pPool->iAgeHead;
2621	Assert(pPage->iAgeNext != NIL_PGMPOOL_IDX); /* we would've already been head then */
2622	pPool->iAgeHead = pPage->idx;
2623	pPool->aPages[pPage->iAgeNext].iAgePrev = pPage->idx;
2624	}
2625	}
2626	#endif /* PGMPOOL_WITH_CACHE */
2627
2628	/**
2629	* Tells if mappings are to be put into the shadow page table or not
2630	*
2631	* @returns boolean result
2632	* @param pVM VM handle.
2633	*/
2634
2635	DECLINLINE(bool) pgmMapAreMappingsEnabled(PPGM pPGM)
2636	{
2637	return !pPGM->fDisableMappings;
2638	}
2639
2640	/** @} */
2641
2642	#endif

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source: vbox/trunk/src/VBox/VMM/PGMInternal.h@ 2218

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