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source: vbox/trunk/src/VBox/VMM/PGM.cpp@ 18499

Last change on this file since 18499 was 18353, checked in by vboxsync, 15 years ago
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1	/* $Id: PGM.cpp 18353 2009-03-26 22:14:25Z vboxsync $ */
2	/** @file
3	* PGM - Page Manager and Monitor. (Mixing stuff here, not good?)
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22
23	/** @page pg_pgm PGM - The Page Manager and Monitor
24	*
25	* @see grp_pgm,
26	* @ref pg_pgm_pool,
27	* @ref pg_pgm_phys.
28	*
29	*
30	* @section sec_pgm_modes Paging Modes
31	*
32	* There are three memory contexts: Host Context (HC), Guest Context (GC)
33	* and intermediate context. When talking about paging HC can also be refered to
34	* as "host paging", and GC refered to as "shadow paging".
35	*
36	* We define three basic paging modes: 32-bit, PAE and AMD64. The host paging mode
37	* is defined by the host operating system. The mode used in the shadow paging mode
38	* depends on the host paging mode and what the mode the guest is currently in. The
39	* following relation between the two is defined:
40	*
41	* @verbatim
42	Host > 32-bit \| PAE \| AMD64 \|
43	Guest \| \| \| \|
44	==v================================
45	32-bit 32-bit PAE PAE
46	-------\|--------\|--------\|--------\|
47	PAE PAE PAE PAE
48	-------\|--------\|--------\|--------\|
49	AMD64 AMD64 AMD64 AMD64
50	-------\|--------\|--------\|--------\| @endverbatim
51	*
52	* All configuration except those in the diagonal (upper left) are expected to
53	* require special effort from the switcher (i.e. a bit slower).
54	*
55	*
56	*
57	*
58	* @section sec_pgm_shw The Shadow Memory Context
59	*
60	*
61	* [..]
62	*
63	* Because of guest context mappings requires PDPT and PML4 entries to allow
64	* writing on AMD64, the two upper levels will have fixed flags whatever the
65	* guest is thinking of using there. So, when shadowing the PD level we will
66	* calculate the effective flags of PD and all the higher levels. In legacy
67	* PAE mode this only applies to the PWT and PCD bits (the rest are
68	* ignored/reserved/MBZ). We will ignore those bits for the present.
69	*
70	*
71	*
72	* @section sec_pgm_int The Intermediate Memory Context
73	*
74	* The world switch goes thru an intermediate memory context which purpose it is
75	* to provide different mappings of the switcher code. All guest mappings are also
76	* present in this context.
77	*
78	* The switcher code is mapped at the same location as on the host, at an
79	* identity mapped location (physical equals virtual address), and at the
80	* hypervisor location. The identity mapped location is for when the world
81	* switches that involves disabling paging.
82	*
83	* PGM maintain page tables for 32-bit, PAE and AMD64 paging modes. This
84	* simplifies switching guest CPU mode and consistency at the cost of more
85	* code to do the work. All memory use for those page tables is located below
86	* 4GB (this includes page tables for guest context mappings).
87	*
88	*
89	* @subsection subsec_pgm_int_gc Guest Context Mappings
90	*
91	* During assignment and relocation of a guest context mapping the intermediate
92	* memory context is used to verify the new location.
93	*
94	* Guest context mappings are currently restricted to below 4GB, for reasons
95	* of simplicity. This may change when we implement AMD64 support.
96	*
97	*
98	*
99	*
100	* @section sec_pgm_misc Misc
101	*
102	* @subsection subsec_pgm_misc_diff Differences Between Legacy PAE and Long Mode PAE
103	*
104	* The differences between legacy PAE and long mode PAE are:
105	* -# PDPE bits 1, 2, 5 and 6 are defined differently. In leagcy mode they are
106	* all marked down as must-be-zero, while in long mode 1, 2 and 5 have the
107	* usual meanings while 6 is ignored (AMD). This means that upon switching to
108	* legacy PAE mode we'll have to clear these bits and when going to long mode
109	* they must be set. This applies to both intermediate and shadow contexts,
110	* however we don't need to do it for the intermediate one since we're
111	* executing with CR0.WP at that time.
112	* -# CR3 allows a 32-byte aligned address in legacy mode, while in long mode
113	* a page aligned one is required.
114	*
115	*
116	* @section sec_pgm_handlers Access Handlers
117	*
118	* Placeholder.
119	*
120	*
121	* @subsection sec_pgm_handlers_virt Virtual Access Handlers
122	*
123	* Placeholder.
124	*
125	*
126	* @subsection sec_pgm_handlers_virt Virtual Access Handlers
127	*
128	* We currently implement three types of virtual access handlers: ALL, WRITE
129	* and HYPERVISOR (WRITE). See PGMVIRTHANDLERTYPE for some more details.
130	*
131	* The HYPERVISOR access handlers is kept in a separate tree since it doesn't apply
132	* to physical pages (PGMTREES::HyperVirtHandlers) and only needs to be consulted in
133	* a special \#PF case. The ALL and WRITE are in the PGMTREES::VirtHandlers tree, the
134	* rest of this section is going to be about these handlers.
135	*
136	* We'll go thru the life cycle of a handler and try make sense of it all, don't know
137	* how successfull this is gonna be...
138	*
139	* 1. A handler is registered thru the PGMR3HandlerVirtualRegister and
140	* PGMHandlerVirtualRegisterEx APIs. We check for conflicting virtual handlers
141	* and create a new node that is inserted into the AVL tree (range key). Then
142	* a full PGM resync is flagged (clear pool, sync cr3, update virtual bit of PGMPAGE).
143	*
144	* 2. The following PGMSyncCR3/SyncCR3 operation will first make invoke HandlerVirtualUpdate.
145	*
146	* 2a. HandlerVirtualUpdate will will lookup all the pages covered by virtual handlers
147	* via the current guest CR3 and update the physical page -> virtual handler
148	* translation. Needless to say, this doesn't exactly scale very well. If any changes
149	* are detected, it will flag a virtual bit update just like we did on registration.
150	* PGMPHYS pages with changes will have their virtual handler state reset to NONE.
151	*
152	* 2b. The virtual bit update process will iterate all the pages covered by all the
153	* virtual handlers and update the PGMPAGE virtual handler state to the max of all
154	* virtual handlers on that page.
155	*
156	* 2c. Back in SyncCR3 we will now flush the entire shadow page cache to make sure
157	* we don't miss any alias mappings of the monitored pages.
158	*
159	* 2d. SyncCR3 will then proceed with syncing the CR3 table.
160	*
161	* 3. \#PF(np,read) on a page in the range. This will cause it to be synced
162	* read-only and resumed if it's a WRITE handler. If it's an ALL handler we
163	* will call the handlers like in the next step. If the physical mapping has
164	* changed we will - some time in the future - perform a handler callback
165	* (optional) and update the physical -> virtual handler cache.
166	*
167	* 4. \#PF(,write) on a page in the range. This will cause the handler to
168	* be invoked.
169	*
170	* 5. The guest invalidates the page and changes the physical backing or
171	* unmaps it. This should cause the invalidation callback to be invoked
172	* (it might not yet be 100% perfect). Exactly what happens next... is
173	* this where we mess up and end up out of sync for a while?
174	*
175	* 6. The handler is deregistered by the client via PGMHandlerVirtualDeregister.
176	* We will then set all PGMPAGEs in the physical -> virtual handler cache for
177	* this handler to NONE and trigger a full PGM resync (basically the same
178	* as int step 1). Which means 2 is executed again.
179	*
180	*
181	* @subsubsection sub_sec_pgm_handler_virt_todo TODOs
182	*
183	* There is a bunch of things that needs to be done to make the virtual handlers
184	* work 100% correctly and work more efficiently.
185	*
186	* The first bit hasn't been implemented yet because it's going to slow the
187	* whole mess down even more, and besides it seems to be working reliably for
188	* our current uses. OTOH, some of the optimizations might end up more or less
189	* implementing the missing bits, so we'll see.
190	*
191	* On the optimization side, the first thing to do is to try avoid unnecessary
192	* cache flushing. Then try team up with the shadowing code to track changes
193	* in mappings by means of access to them (shadow in), updates to shadows pages,
194	* invlpg, and shadow PT discarding (perhaps).
195	*
196	* Some idea that have popped up for optimization for current and new features:
197	* - bitmap indicating where there are virtual handlers installed.
198	* (4KB => 220 pages, page 212 => covers 32-bit address space 1:1!)
199	* - Further optimize this by min/max (needs min/max avl getters).
200	* - Shadow page table entry bit (if any left)?
201	*
202	*/
203
204
205	/** @page pg_pgm_phys PGM Physical Guest Memory Management
206	*
207	*
208	* Objectives:
209	* - Guest RAM over-commitment using memory ballooning,
210	* zero pages and general page sharing.
211	* - Moving or mirroring a VM onto a different physical machine.
212	*
213	*
214	* @subsection subsec_pgmPhys_Definitions Definitions
215	*
216	* Allocation chunk - A RTR0MemObjAllocPhysNC object and the tracking
217	* machinery assoicated with it.
218	*
219	*
220	*
221	*
222	* @subsection subsec_pgmPhys_AllocPage Allocating a page.
223	*
224	* Initially we map all guest memory to the (per VM) zero page, which
225	* means that none of the read functions will cause pages to be allocated.
226	*
227	* Exception, access bit in page tables that have been shared. This must
228	* be handled, but we must also make sure PGMGst*Modify doesn't make
229	* unnecessary modifications.
230	*
231	* Allocation points:
232	* - PGMPhysSimpleWriteGCPhys and PGMPhysWrite.
233	* - Replacing a zero page mapping at \#PF.
234	* - Replacing a shared page mapping at \#PF.
235	* - ROM registration (currently MMR3RomRegister).
236	* - VM restore (pgmR3Load).
237	*
238	* For the first three it would make sense to keep a few pages handy
239	* until we've reached the max memory commitment for the VM.
240	*
241	* For the ROM registration, we know exactly how many pages we need
242	* and will request these from ring-0. For restore, we will save
243	* the number of non-zero pages in the saved state and allocate
244	* them up front. This would allow the ring-0 component to refuse
245	* the request if the isn't sufficient memory available for VM use.
246	*
247	* Btw. for both ROM and restore allocations we won't be requiring
248	* zeroed pages as they are going to be filled instantly.
249	*
250	*
251	* @subsection subsec_pgmPhys_FreePage Freeing a page
252	*
253	* There are a few points where a page can be freed:
254	* - After being replaced by the zero page.
255	* - After being replaced by a shared page.
256	* - After being ballooned by the guest additions.
257	* - At reset.
258	* - At restore.
259	*
260	* When freeing one or more pages they will be returned to the ring-0
261	* component and replaced by the zero page.
262	*
263	* The reasoning for clearing out all the pages on reset is that it will
264	* return us to the exact same state as on power on, and may thereby help
265	* us reduce the memory load on the system. Further it might have a
266	* (temporary) positive influence on memory fragmentation (@see subsec_pgmPhys_Fragmentation).
267	*
268	* On restore, as mention under the allocation topic, pages should be
269	* freed / allocated depending on how many is actually required by the
270	* new VM state. The simplest approach is to do like on reset, and free
271	* all non-ROM pages and then allocate what we need.
272	*
273	* A measure to prevent some fragmentation, would be to let each allocation
274	* chunk have some affinity towards the VM having allocated the most pages
275	* from it. Also, try make sure to allocate from allocation chunks that
276	* are almost full. Admittedly, both these measures might work counter to
277	* our intentions and its probably not worth putting a lot of effort,
278	* cpu time or memory into this.
279	*
280	*
281	* @subsection subsec_pgmPhys_SharePage Sharing a page
282	*
283	* The basic idea is that there there will be a idle priority kernel
284	* thread walking the non-shared VM pages hashing them and looking for
285	* pages with the same checksum. If such pages are found, it will compare
286	* them byte-by-byte to see if they actually are identical. If found to be
287	* identical it will allocate a shared page, copy the content, check that
288	* the page didn't change while doing this, and finally request both the
289	* VMs to use the shared page instead. If the page is all zeros (special
290	* checksum and byte-by-byte check) it will request the VM that owns it
291	* to replace it with the zero page.
292	*
293	* To make this efficient, we will have to make sure not to try share a page
294	* that will change its contents soon. This part requires the most work.
295	* A simple idea would be to request the VM to write monitor the page for
296	* a while to make sure it isn't modified any time soon. Also, it may
297	* make sense to skip pages that are being write monitored since this
298	* information is readily available to the thread if it works on the
299	* per-VM guest memory structures (presently called PGMRAMRANGE).
300	*
301	*
302	* @subsection subsec_pgmPhys_Fragmentation Fragmentation Concerns and Counter Measures
303	*
304	* The pages are organized in allocation chunks in ring-0, this is a necessity
305	* if we wish to have an OS agnostic approach to this whole thing. (On Linux we
306	* could easily work on a page-by-page basis if we liked. Whether this is possible
307	* or efficient on NT I don't quite know.) Fragmentation within these chunks may
308	* become a problem as part of the idea here is that we wish to return memory to
309	* the host system.
310	*
311	* For instance, starting two VMs at the same time, they will both allocate the
312	* guest memory on-demand and if permitted their page allocations will be
313	* intermixed. Shut down one of the two VMs and it will be difficult to return
314	* any memory to the host system because the page allocation for the two VMs are
315	* mixed up in the same allocation chunks.
316	*
317	* To further complicate matters, when pages are freed because they have been
318	* ballooned or become shared/zero the whole idea is that the page is supposed
319	* to be reused by another VM or returned to the host system. This will cause
320	* allocation chunks to contain pages belonging to different VMs and prevent
321	* returning memory to the host when one of those VM shuts down.
322	*
323	* The only way to really deal with this problem is to move pages. This can
324	* either be done at VM shutdown and or by the idle priority worker thread
325	* that will be responsible for finding sharable/zero pages. The mechanisms
326	* involved for coercing a VM to move a page (or to do it for it) will be
327	* the same as when telling it to share/zero a page.
328	*
329	*
330	* @subsection subsec_pgmPhys_Tracking Tracking Structures And Their Cost
331	*
332	* There's a difficult balance between keeping the per-page tracking structures
333	* (global and guest page) easy to use and keeping them from eating too much
334	* memory. We have limited virtual memory resources available when operating in
335	* 32-bit kernel space (on 64-bit there'll it's quite a different story). The
336	* tracking structures will be attemted designed such that we can deal with up
337	* to 32GB of memory on a 32-bit system and essentially unlimited on 64-bit ones.
338	*
339	*
340	* @subsubsection subsubsec_pgmPhys_Tracking_Kernel Kernel Space
341	*
342	* @see pg_GMM
343	*
344	* @subsubsection subsubsec_pgmPhys_Tracking_PerVM Per-VM
345	*
346	* Fixed info is the physical address of the page (HCPhys) and the page id
347	* (described above). Theoretically we'll need 48(-12) bits for the HCPhys part.
348	* Today we've restricting ourselves to 40(-12) bits because this is the current
349	* restrictions of all AMD64 implementations (I think Barcelona will up this
350	* to 48(-12) bits, not that it really matters) and I needed the bits for
351	* tracking mappings of a page. 48-12 = 36. That leaves 28 bits, which means a
352	* decent range for the page id: 2^(28+12) = 1024TB.
353	*
354	* In additions to these, we'll have to keep maintaining the page flags as we
355	* currently do. Although it wouldn't harm to optimize these quite a bit, like
356	* for instance the ROM shouldn't depend on having a write handler installed
357	* in order for it to become read-only. A RO/RW bit should be considered so
358	* that the page syncing code doesn't have to mess about checking multiple
359	* flag combinations (ROM \|\| RW handler \|\| write monitored) in order to
360	* figure out how to setup a shadow PTE. But this of course, is second
361	* priority at present. Current this requires 12 bits, but could probably
362	* be optimized to ~8.
363	*
364	* Then there's the 24 bits used to track which shadow page tables are
365	* currently mapping a page for the purpose of speeding up physical
366	* access handlers, and thereby the page pool cache. More bit for this
367	* purpose wouldn't hurt IIRC.
368	*
369	* Then there is a new bit in which we need to record what kind of page
370	* this is, shared, zero, normal or write-monitored-normal. This'll
371	* require 2 bits. One bit might be needed for indicating whether a
372	* write monitored page has been written to. And yet another one or
373	* two for tracking migration status. 3-4 bits total then.
374	*
375	* Whatever is left will can be used to record the sharabilitiy of a
376	* page. The page checksum will not be stored in the per-VM table as
377	* the idle thread will not be permitted to do modifications to it.
378	* It will instead have to keep its own working set of potentially
379	* shareable pages and their check sums and stuff.
380	*
381	* For the present we'll keep the current packing of the
382	* PGMRAMRANGE::aHCPhys to keep the changes simple, only of course,
383	* we'll have to change it to a struct with a total of 128-bits at
384	* our disposal.
385	*
386	* The initial layout will be like this:
387	* @verbatim
388	RTHCPHYS HCPhys; The current stuff.
389	63:40 Current shadow PT tracking stuff.
390	39:12 The physical page frame number.
391	11:0 The current flags.
392	uint32_t u28PageId : 28; The page id.
393	uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
394	uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
395	uint32_t u1Reserved : 1; Reserved for later.
396	uint32_t u32Reserved; Reserved for later, mostly sharing stats.
397	@endverbatim
398	*
399	* The final layout will be something like this:
400	* @verbatim
401	RTHCPHYS HCPhys; The current stuff.
402	63:48 High page id (12+).
403	47:12 The physical page frame number.
404	11:0 Low page id.
405	uint32_t fReadOnly : 1; Whether it's readonly page (rom or monitored in some way).
406	uint32_t u3Type : 3; The page type {RESERVED, MMIO, MMIO2, ROM, shadowed ROM, RAM}.
407	uint32_t u2PhysMon : 2; Physical access handler type {none, read, write, all}.
408	uint32_t u2VirtMon : 2; Virtual access handler type {none, read, write, all}..
409	uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
410	uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
411	uint32_t u20Reserved : 20; Reserved for later, mostly sharing stats.
412	uint32_t u32Tracking; The shadow PT tracking stuff, roughly.
413	@endverbatim
414	*
415	* Cost wise, this means we'll double the cost for guest memory. There isn't anyway
416	* around that I'm afraid. It means that the cost of dealing out 32GB of memory
417	* to one or more VMs is: (32GB >> PAGE_SHIFT) * 16 bytes, or 128MBs. Or another
418	* example, the VM heap cost when assigning 1GB to a VM will be: 4MB.
419	*
420	* A couple of cost examples for the total cost per-VM + kernel.
421	* 32-bit Windows and 32-bit linux:
422	* 1GB guest ram, 256K pages: 4MB + 2MB(+) = 6MB
423	* 4GB guest ram, 1M pages: 16MB + 8MB(+) = 24MB
424	* 32GB guest ram, 8M pages: 128MB + 64MB(+) = 192MB
425	* 64-bit Windows and 64-bit linux:
426	* 1GB guest ram, 256K pages: 4MB + 3MB(+) = 7MB
427	* 4GB guest ram, 1M pages: 16MB + 12MB(+) = 28MB
428	* 32GB guest ram, 8M pages: 128MB + 96MB(+) = 224MB
429	*
430	* UPDATE - 2007-09-27:
431	* Will need a ballooned flag/state too because we cannot
432	* trust the guest 100% and reporting the same page as ballooned more
433	* than once will put the GMM off balance.
434	*
435	*
436	* @subsection subsec_pgmPhys_Serializing Serializing Access
437	*
438	* Initially, we'll try a simple scheme:
439	*
440	* - The per-VM RAM tracking structures (PGMRAMRANGE) is only modified
441	* by the EMT thread of that VM while in the pgm critsect.
442	* - Other threads in the VM process that needs to make reliable use of
443	* the per-VM RAM tracking structures will enter the critsect.
444	* - No process external thread or kernel thread will ever try enter
445	* the pgm critical section, as that just won't work.
446	* - The idle thread (and similar threads) doesn't not need 100% reliable
447	* data when performing it tasks as the EMT thread will be the one to
448	* do the actual changes later anyway. So, as long as it only accesses
449	* the main ram range, it can do so by somehow preventing the VM from
450	* being destroyed while it works on it...
451	*
452	* - The over-commitment management, including the allocating/freeing
453	* chunks, is serialized by a ring-0 mutex lock (a fast one since the
454	* more mundane mutex implementation is broken on Linux).
455	* - A separeate mutex is protecting the set of allocation chunks so
456	* that pages can be shared or/and freed up while some other VM is
457	* allocating more chunks. This mutex can be take from under the other
458	* one, but not the otherway around.
459	*
460	*
461	* @subsection subsec_pgmPhys_Request VM Request interface
462	*
463	* When in ring-0 it will become necessary to send requests to a VM so it can
464	* for instance move a page while defragmenting during VM destroy. The idle
465	* thread will make use of this interface to request VMs to setup shared
466	* pages and to perform write monitoring of pages.
467	*
468	* I would propose an interface similar to the current VMReq interface, similar
469	* in that it doesn't require locking and that the one sending the request may
470	* wait for completion if it wishes to. This shouldn't be very difficult to
471	* realize.
472	*
473	* The requests themselves are also pretty simple. They are basically:
474	* -# Check that some precondition is still true.
475	* -# Do the update.
476	* -# Update all shadow page tables involved with the page.
477	*
478	* The 3rd step is identical to what we're already doing when updating a
479	* physical handler, see pgmHandlerPhysicalSetRamFlagsAndFlushShadowPTs.
480	*
481	*
482	*
483	* @section sec_pgmPhys_MappingCaches Mapping Caches
484	*
485	* In order to be able to map in and out memory and to be able to support
486	* guest with more RAM than we've got virtual address space, we'll employing
487	* a mapping cache. There is already a tiny one for GC (see PGMGCDynMapGCPageEx)
488	* and we'll create a similar one for ring-0 unless we decide to setup a dedicate
489	* memory context for the HWACCM execution.
490	*
491	*
492	* @subsection subsec_pgmPhys_MappingCaches_R3 Ring-3
493	*
494	* We've considered implementing the ring-3 mapping cache page based but found
495	* that this was bother some when one had to take into account TLBs+SMP and
496	* portability (missing the necessary APIs on several platforms). There were
497	* also some performance concerns with this approach which hadn't quite been
498	* worked out.
499	*
500	* Instead, we'll be mapping allocation chunks into the VM process. This simplifies
501	* matters greatly quite a bit since we don't need to invent any new ring-0 stuff,
502	* only some minor RTR0MEMOBJ mapping stuff. The main concern here is that mapping
503	* compared to the previous idea is that mapping or unmapping a 1MB chunk is more
504	* costly than a single page, although how much more costly is uncertain. We'll
505	* try address this by using a very big cache, preferably bigger than the actual
506	* VM RAM size if possible. The current VM RAM sizes should give some idea for
507	* 32-bit boxes, while on 64-bit we can probably get away with employing an
508	* unlimited cache.
509	*
510	* The cache have to parts, as already indicated, the ring-3 side and the
511	* ring-0 side.
512	*
513	* The ring-0 will be tied to the page allocator since it will operate on the
514	* memory objects it contains. It will therefore require the first ring-0 mutex
515	* discussed in @ref subsec_pgmPhys_Serializing. We
516	* some double house keeping wrt to who has mapped what I think, since both
517	* VMMR0.r0 and RTR0MemObj will keep track of mapping relataions
518	*
519	* The ring-3 part will be protected by the pgm critsect. For simplicity, we'll
520	* require anyone that desires to do changes to the mapping cache to do that
521	* from within this critsect. Alternatively, we could employ a separate critsect
522	* for serializing changes to the mapping cache as this would reduce potential
523	* contention with other threads accessing mappings unrelated to the changes
524	* that are in process. We can see about this later, contention will show
525	* up in the statistics anyway, so it'll be simple to tell.
526	*
527	* The organization of the ring-3 part will be very much like how the allocation
528	* chunks are organized in ring-0, that is in an AVL tree by chunk id. To avoid
529	* having to walk the tree all the time, we'll have a couple of lookaside entries
530	* like in we do for I/O ports and MMIO in IOM.
531	*
532	* The simplified flow of a PGMPhysRead/Write function:
533	* -# Enter the PGM critsect.
534	* -# Lookup GCPhys in the ram ranges and get the Page ID.
535	* -# Calc the Allocation Chunk ID from the Page ID.
536	* -# Check the lookaside entries and then the AVL tree for the Chunk ID.
537	* If not found in cache:
538	* -# Call ring-0 and request it to be mapped and supply
539	* a chunk to be unmapped if the cache is maxed out already.
540	* -# Insert the new mapping into the AVL tree (id + R3 address).
541	* -# Update the relevant lookaside entry and return the mapping address.
542	* -# Do the read/write according to monitoring flags and everything.
543	* -# Leave the critsect.
544	*
545	*
546	* @section sec_pgmPhys_Fallback Fallback
547	*
548	* Current all the "second tier" hosts will not support the RTR0MemObjAllocPhysNC
549	* API and thus require a fallback.
550	*
551	* So, when RTR0MemObjAllocPhysNC returns VERR_NOT_SUPPORTED the page allocator
552	* will return to the ring-3 caller (and later ring-0) and asking it to seed
553	* the page allocator with some fresh pages (VERR_GMM_SEED_ME). Ring-3 will
554	* then perform an SUPPageAlloc(cbChunk >> PAGE_SHIFT) call and make a
555	* "SeededAllocPages" call to ring-0.
556	*
557	* The first time ring-0 sees the VERR_NOT_SUPPORTED failure it will disable
558	* all page sharing (zero page detection will continue). It will also force
559	* all allocations to come from the VM which seeded the page. Both these
560	* measures are taken to make sure that there will never be any need for
561	* mapping anything into ring-3 - everything will be mapped already.
562	*
563	* Whether we'll continue to use the current MM locked memory management
564	* for this I don't quite know (I'd prefer not to and just ditch that all
565	* togther), we'll see what's simplest to do.
566	*
567	*
568	*
569	* @section sec_pgmPhys_Changes Changes
570	*
571	* Breakdown of the changes involved?
572	*/
573
574	/*******************************************************************************
575	* Header Files *
576	*******************************************************************************/
577	#define LOG_GROUP LOG_GROUP_PGM
578	#include <VBox/dbgf.h>
579	#include <VBox/pgm.h>
580	#include <VBox/cpum.h>
581	#include <VBox/iom.h>
582	#include <VBox/sup.h>
583	#include <VBox/mm.h>
584	#include <VBox/em.h>
585	#include <VBox/stam.h>
586	#include <VBox/rem.h>
587	#include <VBox/dbgf.h>
588	#include <VBox/rem.h>
589	#include <VBox/selm.h>
590	#include <VBox/ssm.h>
591	#include "PGMInternal.h"
592	#include <VBox/vm.h>
593	#include <VBox/dbg.h>
594	#include <VBox/hwaccm.h>
595
596	#include <iprt/assert.h>
597	#include <iprt/alloc.h>
598	#include <iprt/asm.h>
599	#include <iprt/thread.h>
600	#include <iprt/string.h>
601	#ifdef DEBUG_bird
602	# include <iprt/env.h>
603	#endif
604	#include <VBox/param.h>
605	#include <VBox/err.h>
606
607
608	/*******************************************************************************
609	* Defined Constants And Macros *
610	*******************************************************************************/
611	/** Saved state data unit version. */
612	#ifdef VBOX_WITH_NEW_PHYS_CODE
613	# define PGM_SAVED_STATE_VERSION 7
614	#else
615	# define PGM_SAVED_STATE_VERSION 6
616	#endif
617	/** Saved state data unit version. */
618	#define PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE 6
619
620
621	/*******************************************************************************
622	* Internal Functions *
623	*******************************************************************************/
624	static int pgmR3InitPaging(PVM pVM);
625	static void pgmR3InitStats(PVM pVM);
626	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
627	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
628	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
629	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser);
630	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
631	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
632	#ifdef VBOX_STRICT
633	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser);
634	#endif
635	static DECLCALLBACK(int) pgmR3Save(PVM pVM, PSSMHANDLE pSSM);
636	static DECLCALLBACK(int) pgmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version);
637	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0);
638	static void pgmR3ModeDataSwitch(PVM pVM, PGMMODE enmShw, PGMMODE enmGst);
639	static PGMMODE pgmR3CalcShadowMode(PVM pVM, PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher);
640
641	#ifdef VBOX_WITH_DEBUGGER
642	/** @todo all but the two last commands must be converted to 'info'. */
643	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
644	static DECLCALLBACK(int) pgmR3CmdMap(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
645	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
646	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
647	# ifdef VBOX_STRICT
648	static DECLCALLBACK(int) pgmR3CmdAssertCR3(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
649	# endif
650	#endif
651
652
653	/*******************************************************************************
654	* Global Variables *
655	*******************************************************************************/
656	#ifdef VBOX_WITH_DEBUGGER
657	/** Command descriptors. */
658	static const DBGCCMD g_aCmds[] =
659	{
660	/* pszCmd, cArgsMin, cArgsMax, paArgDesc, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
661	{ "pgmram", 0, 0, NULL, 0, NULL, 0, pgmR3CmdRam, "", "Display the ram ranges." },
662	{ "pgmmap", 0, 0, NULL, 0, NULL, 0, pgmR3CmdMap, "", "Display the mapping ranges." },
663	{ "pgmsync", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSync, "", "Sync the CR3 page." },
664	#ifdef VBOX_STRICT
665	{ "pgmassertcr3", 0, 0, NULL, 0, NULL, 0, pgmR3CmdAssertCR3, "", "Check the shadow CR3 mapping." },
666	#endif
667	{ "pgmsyncalways", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSyncAlways, "", "Toggle permanent CR3 syncing." },
668	};
669	#endif
670
671
672
673
674	/*
675	* Shadow - 32-bit mode
676	*/
677	#define PGM_SHW_TYPE PGM_TYPE_32BIT
678	#define PGM_SHW_NAME(name) PGM_SHW_NAME_32BIT(name)
679	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_32BIT_STR(name)
680	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_32BIT_STR(name)
681	#include "PGMShw.h"
682
683	/* Guest - real mode */
684	#define PGM_GST_TYPE PGM_TYPE_REAL
685	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
686	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
687	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
688	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_REAL(name)
689	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_REAL_STR(name)
690	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_REAL_STR(name)
691	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
692	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD_PHYS
693	#include "PGMBth.h"
694	#include "PGMGstDefs.h"
695	#include "PGMGst.h"
696	#undef BTH_PGMPOOLKIND_PT_FOR_PT
697	#undef BTH_PGMPOOLKIND_ROOT
698	#undef PGM_BTH_NAME
699	#undef PGM_BTH_NAME_RC_STR
700	#undef PGM_BTH_NAME_R0_STR
701	#undef PGM_GST_TYPE
702	#undef PGM_GST_NAME
703	#undef PGM_GST_NAME_RC_STR
704	#undef PGM_GST_NAME_R0_STR
705
706	/* Guest - protected mode */
707	#define PGM_GST_TYPE PGM_TYPE_PROT
708	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
709	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
710	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
711	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_PROT(name)
712	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_PROT_STR(name)
713	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_PROT_STR(name)
714	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
715	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD_PHYS
716	#include "PGMBth.h"
717	#include "PGMGstDefs.h"
718	#include "PGMGst.h"
719	#undef BTH_PGMPOOLKIND_PT_FOR_PT
720	#undef BTH_PGMPOOLKIND_ROOT
721	#undef PGM_BTH_NAME
722	#undef PGM_BTH_NAME_RC_STR
723	#undef PGM_BTH_NAME_R0_STR
724	#undef PGM_GST_TYPE
725	#undef PGM_GST_NAME
726	#undef PGM_GST_NAME_RC_STR
727	#undef PGM_GST_NAME_R0_STR
728
729	/* Guest - 32-bit mode */
730	#define PGM_GST_TYPE PGM_TYPE_32BIT
731	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
732	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
733	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
734	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_32BIT(name)
735	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_32BIT_STR(name)
736	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_32BIT_STR(name)
737	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT
738	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB
739	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD
740	#include "PGMBth.h"
741	#include "PGMGstDefs.h"
742	#include "PGMGst.h"
743	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
744	#undef BTH_PGMPOOLKIND_PT_FOR_PT
745	#undef BTH_PGMPOOLKIND_ROOT
746	#undef PGM_BTH_NAME
747	#undef PGM_BTH_NAME_RC_STR
748	#undef PGM_BTH_NAME_R0_STR
749	#undef PGM_GST_TYPE
750	#undef PGM_GST_NAME
751	#undef PGM_GST_NAME_RC_STR
752	#undef PGM_GST_NAME_R0_STR
753
754	#undef PGM_SHW_TYPE
755	#undef PGM_SHW_NAME
756	#undef PGM_SHW_NAME_RC_STR
757	#undef PGM_SHW_NAME_R0_STR
758
759
760	/*
761	* Shadow - PAE mode
762	*/
763	#define PGM_SHW_TYPE PGM_TYPE_PAE
764	#define PGM_SHW_NAME(name) PGM_SHW_NAME_PAE(name)
765	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_PAE_STR(name)
766	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_PAE_STR(name)
767	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
768	#include "PGMShw.h"
769
770	/* Guest - real mode */
771	#define PGM_GST_TYPE PGM_TYPE_REAL
772	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
773	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
774	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
775	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
776	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_REAL_STR(name)
777	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_REAL_STR(name)
778	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
779	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_PHYS
780	#include "PGMGstDefs.h"
781	#include "PGMBth.h"
782	#undef BTH_PGMPOOLKIND_PT_FOR_PT
783	#undef BTH_PGMPOOLKIND_ROOT
784	#undef PGM_BTH_NAME
785	#undef PGM_BTH_NAME_RC_STR
786	#undef PGM_BTH_NAME_R0_STR
787	#undef PGM_GST_TYPE
788	#undef PGM_GST_NAME
789	#undef PGM_GST_NAME_RC_STR
790	#undef PGM_GST_NAME_R0_STR
791
792	/* Guest - protected mode */
793	#define PGM_GST_TYPE PGM_TYPE_PROT
794	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
795	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
796	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
797	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PROT(name)
798	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_PROT_STR(name)
799	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PROT_STR(name)
800	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
801	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_PHYS
802	#include "PGMGstDefs.h"
803	#include "PGMBth.h"
804	#undef BTH_PGMPOOLKIND_PT_FOR_PT
805	#undef BTH_PGMPOOLKIND_ROOT
806	#undef PGM_BTH_NAME
807	#undef PGM_BTH_NAME_RC_STR
808	#undef PGM_BTH_NAME_R0_STR
809	#undef PGM_GST_TYPE
810	#undef PGM_GST_NAME
811	#undef PGM_GST_NAME_RC_STR
812	#undef PGM_GST_NAME_R0_STR
813
814	/* Guest - 32-bit mode */
815	#define PGM_GST_TYPE PGM_TYPE_32BIT
816	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
817	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
818	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
819	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_32BIT(name)
820	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_32BIT_STR(name)
821	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_32BIT_STR(name)
822	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
823	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
824	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_FOR_32BIT
825	#include "PGMGstDefs.h"
826	#include "PGMBth.h"
827	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
828	#undef BTH_PGMPOOLKIND_PT_FOR_PT
829	#undef BTH_PGMPOOLKIND_ROOT
830	#undef PGM_BTH_NAME
831	#undef PGM_BTH_NAME_RC_STR
832	#undef PGM_BTH_NAME_R0_STR
833	#undef PGM_GST_TYPE
834	#undef PGM_GST_NAME
835	#undef PGM_GST_NAME_RC_STR
836	#undef PGM_GST_NAME_R0_STR
837
838	/* Guest - PAE mode */
839	#define PGM_GST_TYPE PGM_TYPE_PAE
840	#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
841	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
842	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
843	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PAE(name)
844	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_PAE_STR(name)
845	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PAE_STR(name)
846	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
847	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
848	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT
849	#include "PGMBth.h"
850	#include "PGMGstDefs.h"
851	#include "PGMGst.h"
852	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
853	#undef BTH_PGMPOOLKIND_PT_FOR_PT
854	#undef BTH_PGMPOOLKIND_ROOT
855	#undef PGM_BTH_NAME
856	#undef PGM_BTH_NAME_RC_STR
857	#undef PGM_BTH_NAME_R0_STR
858	#undef PGM_GST_TYPE
859	#undef PGM_GST_NAME
860	#undef PGM_GST_NAME_RC_STR
861	#undef PGM_GST_NAME_R0_STR
862
863	#undef PGM_SHW_TYPE
864	#undef PGM_SHW_NAME
865	#undef PGM_SHW_NAME_RC_STR
866	#undef PGM_SHW_NAME_R0_STR
867
868
869	/*
870	* Shadow - AMD64 mode
871	*/
872	#define PGM_SHW_TYPE PGM_TYPE_AMD64
873	#define PGM_SHW_NAME(name) PGM_SHW_NAME_AMD64(name)
874	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_AMD64_STR(name)
875	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_AMD64_STR(name)
876	#include "PGMShw.h"
877
878	#ifdef VBOX_WITH_64_BITS_GUESTS
879	/* Guest - AMD64 mode */
880	# define PGM_GST_TYPE PGM_TYPE_AMD64
881	# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
882	# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
883	# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
884	# define PGM_BTH_NAME(name) PGM_BTH_NAME_AMD64_AMD64(name)
885	# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_AMD64_AMD64_STR(name)
886	# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_AMD64_AMD64_STR(name)
887	# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
888	# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
889	# define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_64BIT_PML4
890	# include "PGMBth.h"
891	# include "PGMGstDefs.h"
892	# include "PGMGst.h"
893	# undef BTH_PGMPOOLKIND_PT_FOR_BIG
894	# undef BTH_PGMPOOLKIND_PT_FOR_PT
895	# undef BTH_PGMPOOLKIND_ROOT
896	# undef PGM_BTH_NAME
897	# undef PGM_BTH_NAME_RC_STR
898	# undef PGM_BTH_NAME_R0_STR
899	# undef PGM_GST_TYPE
900	# undef PGM_GST_NAME
901	# undef PGM_GST_NAME_RC_STR
902	# undef PGM_GST_NAME_R0_STR
903	#endif /* VBOX_WITH_64_BITS_GUESTS */
904
905	#undef PGM_SHW_TYPE
906	#undef PGM_SHW_NAME
907	#undef PGM_SHW_NAME_RC_STR
908	#undef PGM_SHW_NAME_R0_STR
909
910
911	/*
912	* Shadow - Nested paging mode
913	*/
914	#define PGM_SHW_TYPE PGM_TYPE_NESTED
915	#define PGM_SHW_NAME(name) PGM_SHW_NAME_NESTED(name)
916	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_NESTED_STR(name)
917	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_NESTED_STR(name)
918	#include "PGMShw.h"
919
920	/* Guest - real mode */
921	#define PGM_GST_TYPE PGM_TYPE_REAL
922	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
923	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
924	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
925	#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_REAL(name)
926	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_REAL_STR(name)
927	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_REAL_STR(name)
928	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
929	#include "PGMGstDefs.h"
930	#include "PGMBth.h"
931	#undef BTH_PGMPOOLKIND_PT_FOR_PT
932	#undef PGM_BTH_NAME
933	#undef PGM_BTH_NAME_RC_STR
934	#undef PGM_BTH_NAME_R0_STR
935	#undef PGM_GST_TYPE
936	#undef PGM_GST_NAME
937	#undef PGM_GST_NAME_RC_STR
938	#undef PGM_GST_NAME_R0_STR
939
940	/* Guest - protected mode */
941	#define PGM_GST_TYPE PGM_TYPE_PROT
942	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
943	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
944	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
945	#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_PROT(name)
946	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_PROT_STR(name)
947	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_PROT_STR(name)
948	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
949	#include "PGMGstDefs.h"
950	#include "PGMBth.h"
951	#undef BTH_PGMPOOLKIND_PT_FOR_PT
952	#undef PGM_BTH_NAME
953	#undef PGM_BTH_NAME_RC_STR
954	#undef PGM_BTH_NAME_R0_STR
955	#undef PGM_GST_TYPE
956	#undef PGM_GST_NAME
957	#undef PGM_GST_NAME_RC_STR
958	#undef PGM_GST_NAME_R0_STR
959
960	/* Guest - 32-bit mode */
961	#define PGM_GST_TYPE PGM_TYPE_32BIT
962	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
963	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
964	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
965	#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_32BIT(name)
966	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_32BIT_STR(name)
967	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_32BIT_STR(name)
968	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
969	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
970	#include "PGMGstDefs.h"
971	#include "PGMBth.h"
972	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
973	#undef BTH_PGMPOOLKIND_PT_FOR_PT
974	#undef PGM_BTH_NAME
975	#undef PGM_BTH_NAME_RC_STR
976	#undef PGM_BTH_NAME_R0_STR
977	#undef PGM_GST_TYPE
978	#undef PGM_GST_NAME
979	#undef PGM_GST_NAME_RC_STR
980	#undef PGM_GST_NAME_R0_STR
981
982	/* Guest - PAE mode */
983	#define PGM_GST_TYPE PGM_TYPE_PAE
984	#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
985	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
986	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
987	#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_PAE(name)
988	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_PAE_STR(name)
989	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_PAE_STR(name)
990	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
991	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
992	#include "PGMGstDefs.h"
993	#include "PGMBth.h"
994	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
995	#undef BTH_PGMPOOLKIND_PT_FOR_PT
996	#undef PGM_BTH_NAME
997	#undef PGM_BTH_NAME_RC_STR
998	#undef PGM_BTH_NAME_R0_STR
999	#undef PGM_GST_TYPE
1000	#undef PGM_GST_NAME
1001	#undef PGM_GST_NAME_RC_STR
1002	#undef PGM_GST_NAME_R0_STR
1003
1004	#ifdef VBOX_WITH_64_BITS_GUESTS
1005	/* Guest - AMD64 mode */
1006	# define PGM_GST_TYPE PGM_TYPE_AMD64
1007	# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
1008	# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
1009	# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
1010	# define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_AMD64(name)
1011	# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_AMD64_STR(name)
1012	# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_AMD64_STR(name)
1013	# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
1014	# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
1015	# include "PGMGstDefs.h"
1016	# include "PGMBth.h"
1017	# undef BTH_PGMPOOLKIND_PT_FOR_BIG
1018	# undef BTH_PGMPOOLKIND_PT_FOR_PT
1019	# undef PGM_BTH_NAME
1020	# undef PGM_BTH_NAME_RC_STR
1021	# undef PGM_BTH_NAME_R0_STR
1022	# undef PGM_GST_TYPE
1023	# undef PGM_GST_NAME
1024	# undef PGM_GST_NAME_RC_STR
1025	# undef PGM_GST_NAME_R0_STR
1026	#endif /* VBOX_WITH_64_BITS_GUESTS */
1027
1028	#undef PGM_SHW_TYPE
1029	#undef PGM_SHW_NAME
1030	#undef PGM_SHW_NAME_RC_STR
1031	#undef PGM_SHW_NAME_R0_STR
1032
1033
1034	/*
1035	* Shadow - EPT
1036	*/
1037	#define PGM_SHW_TYPE PGM_TYPE_EPT
1038	#define PGM_SHW_NAME(name) PGM_SHW_NAME_EPT(name)
1039	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_EPT_STR(name)
1040	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_EPT_STR(name)
1041	#include "PGMShw.h"
1042
1043	/* Guest - real mode */
1044	#define PGM_GST_TYPE PGM_TYPE_REAL
1045	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
1046	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
1047	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
1048	#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_REAL(name)
1049	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_REAL_STR(name)
1050	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_REAL_STR(name)
1051	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
1052	#include "PGMGstDefs.h"
1053	#include "PGMBth.h"
1054	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1055	#undef PGM_BTH_NAME
1056	#undef PGM_BTH_NAME_RC_STR
1057	#undef PGM_BTH_NAME_R0_STR
1058	#undef PGM_GST_TYPE
1059	#undef PGM_GST_NAME
1060	#undef PGM_GST_NAME_RC_STR
1061	#undef PGM_GST_NAME_R0_STR
1062
1063	/* Guest - protected mode */
1064	#define PGM_GST_TYPE PGM_TYPE_PROT
1065	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
1066	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
1067	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
1068	#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_PROT(name)
1069	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_PROT_STR(name)
1070	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_PROT_STR(name)
1071	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
1072	#include "PGMGstDefs.h"
1073	#include "PGMBth.h"
1074	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1075	#undef PGM_BTH_NAME
1076	#undef PGM_BTH_NAME_RC_STR
1077	#undef PGM_BTH_NAME_R0_STR
1078	#undef PGM_GST_TYPE
1079	#undef PGM_GST_NAME
1080	#undef PGM_GST_NAME_RC_STR
1081	#undef PGM_GST_NAME_R0_STR
1082
1083	/* Guest - 32-bit mode */
1084	#define PGM_GST_TYPE PGM_TYPE_32BIT
1085	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
1086	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
1087	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
1088	#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_32BIT(name)
1089	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_32BIT_STR(name)
1090	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_32BIT_STR(name)
1091	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
1092	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
1093	#include "PGMGstDefs.h"
1094	#include "PGMBth.h"
1095	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
1096	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1097	#undef PGM_BTH_NAME
1098	#undef PGM_BTH_NAME_RC_STR
1099	#undef PGM_BTH_NAME_R0_STR
1100	#undef PGM_GST_TYPE
1101	#undef PGM_GST_NAME
1102	#undef PGM_GST_NAME_RC_STR
1103	#undef PGM_GST_NAME_R0_STR
1104
1105	/* Guest - PAE mode */
1106	#define PGM_GST_TYPE PGM_TYPE_PAE
1107	#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
1108	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
1109	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
1110	#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_PAE(name)
1111	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_PAE_STR(name)
1112	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_PAE_STR(name)
1113	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
1114	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
1115	#include "PGMGstDefs.h"
1116	#include "PGMBth.h"
1117	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
1118	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1119	#undef PGM_BTH_NAME
1120	#undef PGM_BTH_NAME_RC_STR
1121	#undef PGM_BTH_NAME_R0_STR
1122	#undef PGM_GST_TYPE
1123	#undef PGM_GST_NAME
1124	#undef PGM_GST_NAME_RC_STR
1125	#undef PGM_GST_NAME_R0_STR
1126
1127	#ifdef VBOX_WITH_64_BITS_GUESTS
1128	/* Guest - AMD64 mode */
1129	# define PGM_GST_TYPE PGM_TYPE_AMD64
1130	# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
1131	# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
1132	# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
1133	# define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_AMD64(name)
1134	# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_AMD64_STR(name)
1135	# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_AMD64_STR(name)
1136	# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
1137	# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
1138	# include "PGMGstDefs.h"
1139	# include "PGMBth.h"
1140	# undef BTH_PGMPOOLKIND_PT_FOR_BIG
1141	# undef BTH_PGMPOOLKIND_PT_FOR_PT
1142	# undef PGM_BTH_NAME
1143	# undef PGM_BTH_NAME_RC_STR
1144	# undef PGM_BTH_NAME_R0_STR
1145	# undef PGM_GST_TYPE
1146	# undef PGM_GST_NAME
1147	# undef PGM_GST_NAME_RC_STR
1148	# undef PGM_GST_NAME_R0_STR
1149	#endif /* VBOX_WITH_64_BITS_GUESTS */
1150
1151	#undef PGM_SHW_TYPE
1152	#undef PGM_SHW_NAME
1153	#undef PGM_SHW_NAME_RC_STR
1154	#undef PGM_SHW_NAME_R0_STR
1155
1156
1157
1158	/**
1159	* Initiates the paging of VM.
1160	*
1161	* @returns VBox status code.
1162	* @param pVM Pointer to VM structure.
1163	*/
1164	VMMR3DECL(int) PGMR3Init(PVM pVM)
1165	{
1166	LogFlow(("PGMR3Init:\n"));
1167	PCFGMNODE pCfgPGM = CFGMR3GetChild(CFGMR3GetRoot(pVM), "/PGM");
1168	int rc;
1169
1170	/*
1171	* Assert alignment and sizes.
1172	*/
1173	AssertRelease(sizeof(pVM->pgm.s) <= sizeof(pVM->pgm.padding));
1174
1175	/*
1176	* Init the structure.
1177	*/
1178	pVM->pgm.s.offVM = RT_OFFSETOF(VM, pgm.s);
1179	pVM->pgm.s.offVCpu = RT_OFFSETOF(VMCPU, pgm.s);
1180	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
1181	pVM->pgm.s.enmGuestMode = PGMMODE_INVALID;
1182	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
1183	pVM->pgm.s.GCPhysCR3 = NIL_RTGCPHYS;
1184	pVM->pgm.s.GCPtrPrevRamRangeMapping = MM_HYPER_AREA_ADDRESS;
1185	pVM->pgm.s.fA20Enabled = true;
1186	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(32) - 1; /* default; checked later */
1187	pVM->pgm.s.pGstPaePdptR3 = NULL;
1188	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
1189	pVM->pgm.s.pGstPaePdptR0 = NIL_RTR0PTR;
1190	#endif
1191	pVM->pgm.s.pGstPaePdptRC = NIL_RTRCPTR;
1192	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.apGstPaePDsR3); i++)
1193	{
1194	pVM->pgm.s.apGstPaePDsR3[i] = NULL;
1195	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
1196	pVM->pgm.s.apGstPaePDsR0[i] = NIL_RTR0PTR;
1197	#endif
1198	pVM->pgm.s.apGstPaePDsRC[i] = NIL_RTRCPTR;
1199	pVM->pgm.s.aGCPhysGstPaePDs[i] = NIL_RTGCPHYS;
1200	pVM->pgm.s.aGCPhysGstPaePDsMonitored[i] = NIL_RTGCPHYS;
1201	}
1202
1203	rc = CFGMR3QueryBoolDef(pCfgPGM, "RamPreAlloc", &pVM->pgm.s.fRamPreAlloc, false);
1204	AssertLogRelRCReturn(rc, rc);
1205
1206	#if HC_ARCH_BITS == 64 \|\| 1 /** @todo 4GB/32-bit: remove \|\| 1 later and adjust the limit. */
1207	rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, UINT32_MAX);
1208	#else
1209	rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, _1G / GMM_CHUNK_SIZE);
1210	#endif
1211	AssertLogRelRCReturn(rc, rc);
1212	for (uint32_t i = 0; i < RT_ELEMENTS(pVM->pgm.s.ChunkR3Map.Tlb.aEntries); i++)
1213	pVM->pgm.s.ChunkR3Map.Tlb.aEntries[i].idChunk = NIL_GMM_CHUNKID;
1214
1215	/*
1216	* Get the configured RAM size - to estimate saved state size.
1217	*/
1218	uint64_t cbRam;
1219	rc = CFGMR3QueryU64(CFGMR3GetRoot(pVM), "RamSize", &cbRam);
1220	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1221	cbRam = pVM->pgm.s.cbRamSize = 0;
1222	else if (RT_SUCCESS(rc))
1223	{
1224	if (cbRam < PAGE_SIZE)
1225	cbRam = 0;
1226	cbRam = RT_ALIGN_64(cbRam, PAGE_SIZE);
1227	pVM->pgm.s.cbRamSize = (RTUINT)cbRam; /* pointless legacy, remove after enabling the new phys code. */
1228	}
1229	else
1230	{
1231	AssertMsgFailed(("Configuration error: Failed to query integer \"RamSize\", rc=%Rrc.\n", rc));
1232	return rc;
1233	}
1234
1235	/*
1236	* Register callbacks, string formatters and the saved state data unit.
1237	*/
1238	#ifdef VBOX_STRICT
1239	VMR3AtStateRegister(pVM, pgmR3ResetNoMorePhysWritesFlag, NULL);
1240	#endif
1241	PGMRegisterStringFormatTypes();
1242
1243	rc = SSMR3RegisterInternal(pVM, "pgm", 1, PGM_SAVED_STATE_VERSION, (size_t)cbRam + sizeof(PGM),
1244	NULL, pgmR3Save, NULL,
1245	NULL, pgmR3Load, NULL);
1246	if (RT_FAILURE(rc))
1247	return rc;
1248
1249	/*
1250	* Initialize the PGM critical section and flush the phys TLBs
1251	*/
1252	rc = PDMR3CritSectInit(pVM, &pVM->pgm.s.CritSect, "PGM");
1253	AssertRCReturn(rc, rc);
1254
1255	PGMR3PhysChunkInvalidateTLB(pVM);
1256	PGMPhysInvalidatePageR3MapTLB(pVM);
1257	PGMPhysInvalidatePageR0MapTLB(pVM);
1258	PGMPhysInvalidatePageGCMapTLB(pVM);
1259
1260	#ifdef VBOX_WITH_NEW_PHYS_CODE
1261	/*
1262	* For the time being we sport a full set of handy pages in addition to the base
1263	* memory to simplify things.
1264	*/
1265	rc = MMR3ReserveHandyPages(pVM, RT_ELEMENTS(pVM->pgm.s.aHandyPages));
1266	AssertRCReturn(rc, rc);
1267	#endif
1268
1269	/*
1270	* Trees
1271	*/
1272	rc = MMHyperAlloc(pVM, sizeof(PGMTREES), 0, MM_TAG_PGM, (void **)&pVM->pgm.s.pTreesR3);
1273	if (RT_SUCCESS(rc))
1274	{
1275	pVM->pgm.s.pTreesR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pTreesR3);
1276	pVM->pgm.s.pTreesRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pTreesR3);
1277
1278	/*
1279	* Alocate the zero page.
1280	*/
1281	rc = MMHyperAlloc(pVM, PAGE_SIZE, PAGE_SIZE, MM_TAG_PGM, &pVM->pgm.s.pvZeroPgR3);
1282	}
1283	if (RT_SUCCESS(rc))
1284	{
1285	pVM->pgm.s.pvZeroPgGC = MMHyperR3ToRC(pVM, pVM->pgm.s.pvZeroPgR3);
1286	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
1287	pVM->pgm.s.HCPhysZeroPg = MMR3HyperHCVirt2HCPhys(pVM, pVM->pgm.s.pvZeroPgR3);
1288	AssertRelease(pVM->pgm.s.HCPhysZeroPg != NIL_RTHCPHYS);
1289
1290	/*
1291	* Init the paging.
1292	*/
1293	rc = pgmR3InitPaging(pVM);
1294	}
1295	if (RT_SUCCESS(rc))
1296	{
1297	/*
1298	* Init the page pool.
1299	*/
1300	rc = pgmR3PoolInit(pVM);
1301	}
1302	if (RT_SUCCESS(rc))
1303	rc = PGMR3ChangeMode(pVM, PGMMODE_REAL);
1304
1305	if (RT_SUCCESS(rc))
1306	{
1307	/*
1308	* Info & statistics
1309	*/
1310	DBGFR3InfoRegisterInternal(pVM, "mode",
1311	"Shows the current paging mode. "
1312	"Recognizes 'all', 'guest', 'shadow' and 'host' as arguments, defaulting to 'all' if nothing's given.",
1313	pgmR3InfoMode);
1314	DBGFR3InfoRegisterInternal(pVM, "pgmcr3",
1315	"Dumps all the entries in the top level paging table. No arguments.",
1316	pgmR3InfoCr3);
1317	DBGFR3InfoRegisterInternal(pVM, "phys",
1318	"Dumps all the physical address ranges. No arguments.",
1319	pgmR3PhysInfo);
1320	DBGFR3InfoRegisterInternal(pVM, "handlers",
1321	"Dumps physical, virtual and hyper virtual handlers. "
1322	"Pass 'phys', 'virt', 'hyper' as argument if only one kind is wanted."
1323	"Add 'nost' if the statistics are unwanted, use together with 'all' or explicit selection.",
1324	pgmR3InfoHandlers);
1325	DBGFR3InfoRegisterInternal(pVM, "mappings",
1326	"Dumps guest mappings.",
1327	pgmR3MapInfo);
1328
1329	pgmR3InitStats(pVM);
1330
1331	#ifdef VBOX_WITH_DEBUGGER
1332	/*
1333	* Debugger commands.
1334	*/
1335	static bool s_fRegisteredCmds = false;
1336	if (!s_fRegisteredCmds)
1337	{
1338	int rc = DBGCRegisterCommands(&g_aCmds[0], RT_ELEMENTS(g_aCmds));
1339	if (RT_SUCCESS(rc))
1340	s_fRegisteredCmds = true;
1341	}
1342	#endif
1343	return VINF_SUCCESS;
1344	}
1345
1346	/* Almost no cleanup necessary, MM frees all memory. */
1347	PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
1348
1349	return rc;
1350	}
1351
1352
1353	/**
1354	* Initializes the per-VCPU PGM.
1355	*
1356	* @returns VBox status code.
1357	* @param pVM The VM to operate on.
1358	*/
1359	VMMR3DECL(int) PGMR3InitCPU(PVM pVM)
1360	{
1361	LogFlow(("PGMR3InitCPU\n"));
1362	return VINF_SUCCESS;
1363	}
1364
1365
1366	/**
1367	* Init paging.
1368	*
1369	* Since we need to check what mode the host is operating in before we can choose
1370	* the right paging functions for the host we have to delay this until R0 has
1371	* been initialized.
1372	*
1373	* @returns VBox status code.
1374	* @param pVM VM handle.
1375	*/
1376	static int pgmR3InitPaging(PVM pVM)
1377	{
1378	/*
1379	* Force a recalculation of modes and switcher so everyone gets notified.
1380	*/
1381	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
1382	pVM->pgm.s.enmGuestMode = PGMMODE_INVALID;
1383	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
1384
1385	/*
1386	* Allocate static mapping space for whatever the cr3 register
1387	* points to and in the case of PAE mode to the 4 PDs.
1388	*/
1389	int rc = MMR3HyperReserve(pVM, PAGE_SIZE * 5, "CR3 mapping", &pVM->pgm.s.GCPtrCR3Mapping);
1390	if (RT_FAILURE(rc))
1391	{
1392	AssertMsgFailed(("Failed to reserve two pages for cr mapping in HMA, rc=%Rrc\n", rc));
1393	return rc;
1394	}
1395	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1396
1397	/*
1398	* Allocate pages for the three possible intermediate contexts
1399	* (AMD64, PAE and plain 32-Bit). We maintain all three contexts
1400	* for the sake of simplicity. The AMD64 uses the PAE for the
1401	* lower levels, making the total number of pages 11 (3 + 7 + 1).
1402	*
1403	* We assume that two page tables will be enought for the core code
1404	* mappings (HC virtual and identity).
1405	*/
1406	pVM->pgm.s.pInterPD = (PX86PD)MMR3PageAllocLow(pVM);
1407	pVM->pgm.s.apInterPTs[0] = (PX86PT)MMR3PageAllocLow(pVM);
1408	pVM->pgm.s.apInterPTs[1] = (PX86PT)MMR3PageAllocLow(pVM);
1409	pVM->pgm.s.apInterPaePTs[0] = (PX86PTPAE)MMR3PageAlloc(pVM);
1410	pVM->pgm.s.apInterPaePTs[1] = (PX86PTPAE)MMR3PageAlloc(pVM);
1411	pVM->pgm.s.apInterPaePDs[0] = (PX86PDPAE)MMR3PageAlloc(pVM);
1412	pVM->pgm.s.apInterPaePDs[1] = (PX86PDPAE)MMR3PageAlloc(pVM);
1413	pVM->pgm.s.apInterPaePDs[2] = (PX86PDPAE)MMR3PageAlloc(pVM);
1414	pVM->pgm.s.apInterPaePDs[3] = (PX86PDPAE)MMR3PageAlloc(pVM);
1415	pVM->pgm.s.pInterPaePDPT = (PX86PDPT)MMR3PageAllocLow(pVM);
1416	pVM->pgm.s.pInterPaePDPT64 = (PX86PDPT)MMR3PageAllocLow(pVM);
1417	pVM->pgm.s.pInterPaePML4 = (PX86PML4)MMR3PageAllocLow(pVM);
1418	if ( !pVM->pgm.s.pInterPD
1419	\|\| !pVM->pgm.s.apInterPTs[0]
1420	\|\| !pVM->pgm.s.apInterPTs[1]
1421	\|\| !pVM->pgm.s.apInterPaePTs[0]
1422	\|\| !pVM->pgm.s.apInterPaePTs[1]
1423	\|\| !pVM->pgm.s.apInterPaePDs[0]
1424	\|\| !pVM->pgm.s.apInterPaePDs[1]
1425	\|\| !pVM->pgm.s.apInterPaePDs[2]
1426	\|\| !pVM->pgm.s.apInterPaePDs[3]
1427	\|\| !pVM->pgm.s.pInterPaePDPT
1428	\|\| !pVM->pgm.s.pInterPaePDPT64
1429	\|\| !pVM->pgm.s.pInterPaePML4)
1430	{
1431	AssertMsgFailed(("Failed to allocate pages for the intermediate context!\n"));
1432	return VERR_NO_PAGE_MEMORY;
1433	}
1434
1435	pVM->pgm.s.HCPhysInterPD = MMPage2Phys(pVM, pVM->pgm.s.pInterPD);
1436	AssertRelease(pVM->pgm.s.HCPhysInterPD != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPD & PAGE_OFFSET_MASK));
1437	pVM->pgm.s.HCPhysInterPaePDPT = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT);
1438	AssertRelease(pVM->pgm.s.HCPhysInterPaePDPT != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePDPT & PAGE_OFFSET_MASK));
1439	pVM->pgm.s.HCPhysInterPaePML4 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePML4);
1440	AssertRelease(pVM->pgm.s.HCPhysInterPaePML4 != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePML4 & PAGE_OFFSET_MASK) && pVM->pgm.s.HCPhysInterPaePML4 < 0xffffffff);
1441
1442	/*
1443	* Initialize the pages, setting up the PML4 and PDPT for repetitive 4GB action.
1444	*/
1445	ASMMemZeroPage(pVM->pgm.s.pInterPD);
1446	ASMMemZeroPage(pVM->pgm.s.apInterPTs[0]);
1447	ASMMemZeroPage(pVM->pgm.s.apInterPTs[1]);
1448
1449	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[0]);
1450	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[1]);
1451
1452	ASMMemZeroPage(pVM->pgm.s.pInterPaePDPT);
1453	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.apInterPaePDs); i++)
1454	{
1455	ASMMemZeroPage(pVM->pgm.s.apInterPaePDs[i]);
1456	pVM->pgm.s.pInterPaePDPT->a[i].u = X86_PDPE_P \| PGM_PLXFLAGS_PERMANENT
1457	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[i]);
1458	}
1459
1460	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.pInterPaePDPT64->a); i++)
1461	{
1462	const unsigned iPD = i % RT_ELEMENTS(pVM->pgm.s.apInterPaePDs);
1463	pVM->pgm.s.pInterPaePDPT64->a[i].u = X86_PDPE_P \| X86_PDPE_RW \| X86_PDPE_US \| X86_PDPE_A \| PGM_PLXFLAGS_PERMANENT
1464	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[iPD]);
1465	}
1466
1467	RTHCPHYS HCPhysInterPaePDPT64 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64);
1468	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.pInterPaePML4->a); i++)
1469	pVM->pgm.s.pInterPaePML4->a[i].u = X86_PML4E_P \| X86_PML4E_RW \| X86_PML4E_US \| X86_PML4E_A \| PGM_PLXFLAGS_PERMANENT
1470	\| HCPhysInterPaePDPT64;
1471
1472	/*
1473	* Initialize paging workers and mode from current host mode
1474	* and the guest running in real mode.
1475	*/
1476	pVM->pgm.s.enmHostMode = SUPGetPagingMode();
1477	switch (pVM->pgm.s.enmHostMode)
1478	{
1479	case SUPPAGINGMODE_32_BIT:
1480	case SUPPAGINGMODE_32_BIT_GLOBAL:
1481	case SUPPAGINGMODE_PAE:
1482	case SUPPAGINGMODE_PAE_GLOBAL:
1483	case SUPPAGINGMODE_PAE_NX:
1484	case SUPPAGINGMODE_PAE_GLOBAL_NX:
1485	break;
1486
1487	case SUPPAGINGMODE_AMD64:
1488	case SUPPAGINGMODE_AMD64_GLOBAL:
1489	case SUPPAGINGMODE_AMD64_NX:
1490	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
1491	#ifndef VBOX_WITH_HYBRID_32BIT_KERNEL
1492	if (ARCH_BITS != 64)
1493	{
1494	AssertMsgFailed(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1495	LogRel(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1496	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1497	}
1498	#endif
1499	break;
1500	default:
1501	AssertMsgFailed(("Host mode %d is not supported\n", pVM->pgm.s.enmHostMode));
1502	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1503	}
1504	rc = pgmR3ModeDataInit(pVM, false /* don't resolve GC and R0 syms yet */);
1505	if (RT_SUCCESS(rc))
1506	{
1507	LogFlow(("pgmR3InitPaging: returns successfully\n"));
1508	#if HC_ARCH_BITS == 64
1509	LogRel(("Debug: HCPhysInterPD=%RHp HCPhysInterPaePDPT=%RHp HCPhysInterPaePML4=%RHp\n",
1510	pVM->pgm.s.HCPhysInterPD, pVM->pgm.s.HCPhysInterPaePDPT, pVM->pgm.s.HCPhysInterPaePML4));
1511	LogRel(("Debug: apInterPTs={%RHp,%RHp} apInterPaePTs={%RHp,%RHp} apInterPaePDs={%RHp,%RHp,%RHp,%RHp} pInterPaePDPT64=%RHp\n",
1512	MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[1]),
1513	MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[1]),
1514	MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[1]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[2]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[3]),
1515	MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64)));
1516	#endif
1517
1518	return VINF_SUCCESS;
1519	}
1520
1521	LogFlow(("pgmR3InitPaging: returns %Rrc\n", rc));
1522	return rc;
1523	}
1524
1525
1526	/**
1527	* Init statistics
1528	*/
1529	static void pgmR3InitStats(PVM pVM)
1530	{
1531	PPGM pPGM = &pVM->pgm.s;
1532	unsigned i;
1533
1534	/* Common - misc variables */
1535	STAM_REL_REG(pVM, &pPGM->cAllPages, STAMTYPE_U32, "/PGM/Page/cAllPages", STAMUNIT_OCCURENCES, "The total number of pages.");
1536	STAM_REL_REG(pVM, &pPGM->cPrivatePages, STAMTYPE_U32, "/PGM/Page/cPrivatePages", STAMUNIT_OCCURENCES, "The number of private pages.");
1537	STAM_REL_REG(pVM, &pPGM->cSharedPages, STAMTYPE_U32, "/PGM/Page/cSharedPages", STAMUNIT_OCCURENCES, "The number of shared pages.");
1538	STAM_REL_REG(pVM, &pPGM->cZeroPages, STAMTYPE_U32, "/PGM/Page/cZeroPages", STAMUNIT_OCCURENCES, "The number of zero backed pages.");
1539	STAM_REL_REG(pVM, &pPGM->cHandyPages, STAMTYPE_U32, "/PGM/Page/cHandyPages", STAMUNIT_OCCURENCES, "The number of handy pages (not included in cAllPages).");
1540	STAM_REL_REG(pVM, &pPGM->cGuestModeChanges, STAMTYPE_COUNTER, "/PGM/cGuestModeChanges", STAMUNIT_OCCURENCES, "Number of guest mode changes.");
1541	STAM_REL_REG(pVM, &pPGM->cRelocations, STAMTYPE_COUNTER, "/PGM/cRelocations", STAMUNIT_OCCURENCES, "Number of hypervisor relocations.");
1542	STAM_REL_REG(pVM, &pPGM->ChunkR3Map.c, STAMTYPE_U32, "/PGM/ChunkR3Map/c", STAMUNIT_OCCURENCES, "Number of mapped chunks.");
1543	STAM_REL_REG(pVM, &pPGM->ChunkR3Map.cMax, STAMTYPE_U32, "/PGM/ChunkR3Map/cMax", STAMUNIT_OCCURENCES, "Maximum number of mapped chunks.");
1544
1545	/*
1546	* Note! The layout below matches the member layout exactly!
1547	*/
1548
1549	#ifdef VBOX_WITH_STATISTICS
1550	/* Common - stats */
1551	# ifdef PGMPOOL_WITH_GCPHYS_TRACKING
1552	STAM_REG(pVM, &pPGM->StatTrackVirgin, STAMTYPE_COUNTER, "/PGM/Track/Virgin", STAMUNIT_OCCURENCES, "The number of first time shadowings");
1553	STAM_REG(pVM, &pPGM->StatTrackAliased, STAMTYPE_COUNTER, "/PGM/Track/Aliased", STAMUNIT_OCCURENCES, "The number of times switching to cRef2, i.e. the page is being shadowed by two PTs.");
1554	STAM_REG(pVM, &pPGM->StatTrackAliasedMany, STAMTYPE_COUNTER, "/PGM/Track/AliasedMany", STAMUNIT_OCCURENCES, "The number of times we're tracking using cRef2.");
1555	STAM_REG(pVM, &pPGM->StatTrackAliasedLots, STAMTYPE_COUNTER, "/PGM/Track/AliasedLots", STAMUNIT_OCCURENCES, "The number of times we're hitting pages which has overflowed cRef2");
1556	STAM_REG(pVM, &pPGM->StatTrackOverflows, STAMTYPE_COUNTER, "/PGM/Track/Overflows", STAMUNIT_OCCURENCES, "The number of times the extent list grows to long.");
1557	STAM_REG(pVM, &pPGM->StatTrackDeref, STAMTYPE_PROFILE, "/PGM/Track/Deref", STAMUNIT_OCCURENCES, "Profiling of SyncPageWorkerTrackDeref (expensive).");
1558	# endif
1559	for (i = 0; i < RT_ELEMENTS(pPGM->StatSyncPtPD); i++)
1560	STAMR3RegisterF(pVM, &pPGM->StatSyncPtPD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1561	"The number of SyncPT per PD n.", "/PGM/PDSyncPT/%04X", i);
1562	for (i = 0; i < RT_ELEMENTS(pPGM->StatSyncPagePD); i++)
1563	STAMR3RegisterF(pVM, &pPGM->StatSyncPagePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1564	"The number of SyncPage per PD n.", "/PGM/PDSyncPage/%04X", i);
1565
1566	/* R3 only: */
1567	STAM_REG(pVM, &pPGM->StatR3DetectedConflicts, STAMTYPE_COUNTER, "/PGM/R3/DetectedConflicts", STAMUNIT_OCCURENCES, "The number of times PGMR3CheckMappingConflicts() detected a conflict.");
1568	STAM_REG(pVM, &pPGM->StatR3ResolveConflict, STAMTYPE_PROFILE, "/PGM/R3/ResolveConflict", STAMUNIT_TICKS_PER_CALL, "pgmR3SyncPTResolveConflict() profiling (includes the entire relocation).");
1569	STAM_REG(pVM, &pPGM->StatR3GuestPDWrite, STAMTYPE_COUNTER, "/PGM/R3/PDWrite", STAMUNIT_OCCURENCES, "The total number of times pgmHCGuestPDWriteHandler() was called.");
1570	STAM_REG(pVM, &pPGM->StatR3GuestPDWriteConflict, STAMTYPE_COUNTER, "/PGM/R3/PDWriteConflict", STAMUNIT_OCCURENCES, "The number of times pgmHCGuestPDWriteHandler() detected a conflict.");
1571	#ifndef VBOX_WITH_NEW_PHYS_CODE
1572	STAM_REG(pVM, &pPGM->StatR3DynRamTotal, STAMTYPE_COUNTER, "/PGM/DynAlloc/TotalAlloc", STAMUNIT_MEGABYTES, "Allocated MBs of guest ram.");
1573	STAM_REG(pVM, &pPGM->StatR3DynRamGrow, STAMTYPE_COUNTER, "/PGM/DynAlloc/Grow", STAMUNIT_OCCURENCES, "Nr of pgmr3PhysGrowRange calls.");
1574	#endif
1575
1576	/* R0 only: */
1577	STAM_REG(pVM, &pPGM->StatR0DynMapMigrateInvlPg, STAMTYPE_COUNTER, "/PGM/R0/DynMapMigrateInvlPg", STAMUNIT_OCCURENCES, "invlpg count in PGMDynMapMigrateAutoSet.");
1578	STAM_REG(pVM, &pPGM->StatR0DynMapGCPageInl, STAMTYPE_PROFILE, "/PGM/R0/DynMapPageGCPageInl", STAMUNIT_TICKS_PER_CALL, "Calls to pgmR0DynMapGCPageInlined.");
1579	STAM_REG(pVM, &pPGM->StatR0DynMapGCPageInlHits, STAMTYPE_COUNTER, "/PGM/R0/DynMapPageGCPageInl/Hits", STAMUNIT_OCCURENCES, "Hash table lookup hits.");
1580	STAM_REG(pVM, &pPGM->StatR0DynMapGCPageInlMisses, STAMTYPE_COUNTER, "/PGM/R0/DynMapPageGCPageInl/Misses", STAMUNIT_OCCURENCES, "Misses that falls back to code common with PGMDynMapHCPage.");
1581	STAM_REG(pVM, &pPGM->StatR0DynMapGCPageInlRamHits, STAMTYPE_COUNTER, "/PGM/R0/DynMapPageGCPageInl/RamHits", STAMUNIT_OCCURENCES, "1st ram range hits.");
1582	STAM_REG(pVM, &pPGM->StatR0DynMapGCPageInlRamMisses, STAMTYPE_COUNTER, "/PGM/R0/DynMapPageGCPageInl/RamMisses", STAMUNIT_OCCURENCES, "1st ram range misses, takes slow path.");
1583	STAM_REG(pVM, &pPGM->StatR0DynMapHCPageInl, STAMTYPE_PROFILE, "/PGM/R0/DynMapPageHCPageInl", STAMUNIT_TICKS_PER_CALL, "Calls to pgmR0DynMapHCPageInlined.");
1584	STAM_REG(pVM, &pPGM->StatR0DynMapHCPageInlHits, STAMTYPE_COUNTER, "/PGM/R0/DynMapPageHCPageInl/Hits", STAMUNIT_OCCURENCES, "Hash table lookup hits.");
1585	STAM_REG(pVM, &pPGM->StatR0DynMapHCPageInlMisses, STAMTYPE_COUNTER, "/PGM/R0/DynMapPageHCPageInl/Misses", STAMUNIT_OCCURENCES, "Misses that falls back to code common with PGMDynMapHCPage.");
1586	STAM_REG(pVM, &pPGM->StatR0DynMapPage, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage", STAMUNIT_OCCURENCES, "Calls to pgmR0DynMapPage");
1587	STAM_REG(pVM, &pPGM->StatR0DynMapSetOptimize, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/SetOptimize", STAMUNIT_OCCURENCES, "Calls to pgmDynMapOptimizeAutoSet.");
1588	STAM_REG(pVM, &pPGM->StatR0DynMapSetSearchFlushes, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/SetSearchFlushes",STAMUNIT_OCCURENCES, "Set search restorting to subset flushes.");
1589	STAM_REG(pVM, &pPGM->StatR0DynMapSetSearchHits, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/SetSearchHits", STAMUNIT_OCCURENCES, "Set search hits.");
1590	STAM_REG(pVM, &pPGM->StatR0DynMapSetSearchMisses, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/SetSearchMisses", STAMUNIT_OCCURENCES, "Set search misses.");
1591	STAM_REG(pVM, &pPGM->StatR0DynMapHCPage, STAMTYPE_PROFILE, "/PGM/R0/DynMapPage/HCPage", STAMUNIT_TICKS_PER_CALL, "Calls to PGMDynMapHCPage (ring-0).");
1592	STAM_REG(pVM, &pPGM->StatR0DynMapPageHits0, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/Hits0", STAMUNIT_OCCURENCES, "Hits at iPage+0");
1593	STAM_REG(pVM, &pPGM->StatR0DynMapPageHits1, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/Hits1", STAMUNIT_OCCURENCES, "Hits at iPage+1");
1594	STAM_REG(pVM, &pPGM->StatR0DynMapPageHits2, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/Hits2", STAMUNIT_OCCURENCES, "Hits at iPage+2");
1595	STAM_REG(pVM, &pPGM->StatR0DynMapPageInvlPg, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/InvlPg", STAMUNIT_OCCURENCES, "invlpg count in pgmR0DynMapPageSlow.");
1596	STAM_REG(pVM, &pPGM->StatR0DynMapPageSlow, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/Slow", STAMUNIT_OCCURENCES, "Calls to pgmR0DynMapPageSlow - subtract this from pgmR0DynMapPage to get 1st level hits.");
1597	STAM_REG(pVM, &pPGM->StatR0DynMapPageSlowLoopHits, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/SlowLoopHits" , STAMUNIT_OCCURENCES, "Hits in the loop path.");
1598	STAM_REG(pVM, &pPGM->StatR0DynMapPageSlowLoopMisses, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/SlowLoopMisses", STAMUNIT_OCCURENCES, "Misses in the loop path. NonLoopMisses = Slow - SlowLoopHit - SlowLoopMisses");
1599	//STAM_REG(pVM, &pPGM->StatR0DynMapPageSlowLostHits, STAMTYPE_COUNTER, "/PGM/R0/DynMapPage/SlowLostHits", STAMUNIT_OCCURENCES, "Lost hits.");
1600	STAM_REG(pVM, &pPGM->StatR0DynMapSubsets, STAMTYPE_COUNTER, "/PGM/R0/Subsets", STAMUNIT_OCCURENCES, "Times PGMDynMapPushAutoSubset was called.");
1601	STAM_REG(pVM, &pPGM->StatR0DynMapPopFlushes, STAMTYPE_COUNTER, "/PGM/R0/SubsetPopFlushes", STAMUNIT_OCCURENCES, "Times PGMDynMapPopAutoSubset flushes the subset.");
1602	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[0], STAMTYPE_COUNTER, "/PGM/R0/SetSize000..09", STAMUNIT_OCCURENCES, "00-09% filled");
1603	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[1], STAMTYPE_COUNTER, "/PGM/R0/SetSize010..19", STAMUNIT_OCCURENCES, "10-19% filled");
1604	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[2], STAMTYPE_COUNTER, "/PGM/R0/SetSize020..29", STAMUNIT_OCCURENCES, "20-29% filled");
1605	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[3], STAMTYPE_COUNTER, "/PGM/R0/SetSize030..39", STAMUNIT_OCCURENCES, "30-39% filled");
1606	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[4], STAMTYPE_COUNTER, "/PGM/R0/SetSize040..49", STAMUNIT_OCCURENCES, "40-49% filled");
1607	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[5], STAMTYPE_COUNTER, "/PGM/R0/SetSize050..59", STAMUNIT_OCCURENCES, "50-59% filled");
1608	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[6], STAMTYPE_COUNTER, "/PGM/R0/SetSize060..69", STAMUNIT_OCCURENCES, "60-69% filled");
1609	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[7], STAMTYPE_COUNTER, "/PGM/R0/SetSize070..79", STAMUNIT_OCCURENCES, "70-79% filled");
1610	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[8], STAMTYPE_COUNTER, "/PGM/R0/SetSize080..89", STAMUNIT_OCCURENCES, "80-89% filled");
1611	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[9], STAMTYPE_COUNTER, "/PGM/R0/SetSize090..99", STAMUNIT_OCCURENCES, "90-99% filled");
1612	STAM_REG(pVM, &pPGM->aStatR0DynMapSetSize[10], STAMTYPE_COUNTER, "/PGM/R0/SetSize100", STAMUNIT_OCCURENCES, "100% filled");
1613
1614	/* GC only: */
1615	STAM_REG(pVM, &pPGM->StatRCDynMapCacheHits, STAMTYPE_COUNTER, "/PGM/RC/DynMapCache/Hits" , STAMUNIT_OCCURENCES, "Number of dynamic page mapping cache hits.");
1616	STAM_REG(pVM, &pPGM->StatRCDynMapCacheMisses, STAMTYPE_COUNTER, "/PGM/RC/DynMapCache/Misses" , STAMUNIT_OCCURENCES, "Number of dynamic page mapping cache misses.");
1617	STAM_REG(pVM, &pPGM->StatRCInvlPgConflict, STAMTYPE_COUNTER, "/PGM/RC/InvlPgConflict", STAMUNIT_OCCURENCES, "Number of times PGMInvalidatePage() detected a mapping conflict.");
1618	STAM_REG(pVM, &pPGM->StatRCInvlPgSyncMonCR3, STAMTYPE_COUNTER, "/PGM/RC/InvlPgSyncMonitorCR3", STAMUNIT_OCCURENCES, "Number of times PGMInvalidatePage() ran into PGM_SYNC_MONITOR_CR3.");
1619
1620	/* RZ only: */
1621	STAM_REG(pVM, &pPGM->StatRZTrap0e, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMTrap0eHandler() body.");
1622	STAM_REG(pVM, &pPGM->StatRZTrap0eTimeCheckPageFault, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time/CheckPageFault", STAMUNIT_TICKS_PER_CALL, "Profiling of checking for dirty/access emulation faults.");
1623	STAM_REG(pVM, &pPGM->StatRZTrap0eTimeSyncPT, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of lazy page table syncing.");
1624	STAM_REG(pVM, &pPGM->StatRZTrap0eTimeMapping, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time/Mapping", STAMUNIT_TICKS_PER_CALL, "Profiling of checking virtual mappings.");
1625	STAM_REG(pVM, &pPGM->StatRZTrap0eTimeOutOfSync, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time/OutOfSync", STAMUNIT_TICKS_PER_CALL, "Profiling of out of sync page handling.");
1626	STAM_REG(pVM, &pPGM->StatRZTrap0eTimeHandlers, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of checking handlers.");
1627	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2CSAM, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/CSAM", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is CSAM.");
1628	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2DirtyAndAccessed, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/DirtyAndAccessedBits", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation.");
1629	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2GuestTrap, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/GuestTrap", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is a guest trap.");
1630	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2HndPhys, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/HandlerPhysical", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is a physical handler.");
1631	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2HndVirt, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/HandlerVirtual", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is a virtual handler.");
1632	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2HndUnhandled, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/HandlerUnhandled", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page.");
1633	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2Misc, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/Misc", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is not known.");
1634	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2OutOfSync, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/OutOfSync", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is an out-of-sync page.");
1635	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2OutOfSyncHndPhys, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/OutOfSyncHndPhys", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page.");
1636	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2OutOfSyncHndVirt, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/OutOfSyncHndVirt", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page.");
1637	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2OutOfSyncHndObs, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/OutOfSyncObsHnd", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is an obsolete handler page.");
1638	STAM_REG(pVM, &pPGM->StatRZTrap0eTime2SyncPT, STAMTYPE_PROFILE, "/PGM/RZ/Trap0e/Time2/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT.");
1639	STAM_REG(pVM, &pPGM->StatRZTrap0eConflicts, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Conflicts", STAMUNIT_OCCURENCES, "The number of times #PF was caused by an undetected conflict.");
1640	STAM_REG(pVM, &pPGM->StatRZTrap0eHandlersMapping, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Handlers/Mapping", STAMUNIT_OCCURENCES, "Number of traps due to access handlers in mappings.");
1641	STAM_REG(pVM, &pPGM->StatRZTrap0eHandlersOutOfSync, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Handlers/OutOfSync", STAMUNIT_OCCURENCES, "Number of traps due to out-of-sync handled pages.");
1642	STAM_REG(pVM, &pPGM->StatRZTrap0eHandlersPhysical, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Handlers/Physical", STAMUNIT_OCCURENCES, "Number of traps due to physical access handlers.");
1643	STAM_REG(pVM, &pPGM->StatRZTrap0eHandlersVirtual, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Handlers/Virtual", STAMUNIT_OCCURENCES, "Number of traps due to virtual access handlers.");
1644	STAM_REG(pVM, &pPGM->StatRZTrap0eHandlersVirtualByPhys, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Handlers/VirtualByPhys", STAMUNIT_OCCURENCES, "Number of traps due to virtual access handlers by physical address.");
1645	STAM_REG(pVM, &pPGM->StatRZTrap0eHandlersVirtualUnmarked,STAMTYPE_COUNTER,"/PGM/RZ/Trap0e/Handlers/VirtualUnmarked",STAMUNIT_OCCURENCES, "Number of traps due to virtual access handlers by virtual address (without proper physical flags).");
1646	STAM_REG(pVM, &pPGM->StatRZTrap0eHandlersUnhandled, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Handlers/Unhandled", STAMUNIT_OCCURENCES, "Number of traps due to access outside range of monitored page(s).");
1647	STAM_REG(pVM, &pPGM->StatRZTrap0eHandlersInvalid, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Handlers/Invalid", STAMUNIT_OCCURENCES, "Number of traps due to access to invalid physical memory.");
1648	STAM_REG(pVM, &pPGM->StatRZTrap0eUSNotPresentRead, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/User/NPRead", STAMUNIT_OCCURENCES, "Number of user mode not present read page faults.");
1649	STAM_REG(pVM, &pPGM->StatRZTrap0eUSNotPresentWrite, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/User/NPWrite", STAMUNIT_OCCURENCES, "Number of user mode not present write page faults.");
1650	STAM_REG(pVM, &pPGM->StatRZTrap0eUSWrite, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/User/Write", STAMUNIT_OCCURENCES, "Number of user mode write page faults.");
1651	STAM_REG(pVM, &pPGM->StatRZTrap0eUSReserved, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/User/Reserved", STAMUNIT_OCCURENCES, "Number of user mode reserved bit page faults.");
1652	STAM_REG(pVM, &pPGM->StatRZTrap0eUSNXE, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/User/NXE", STAMUNIT_OCCURENCES, "Number of user mode NXE page faults.");
1653	STAM_REG(pVM, &pPGM->StatRZTrap0eUSRead, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/User/Read", STAMUNIT_OCCURENCES, "Number of user mode read page faults.");
1654	STAM_REG(pVM, &pPGM->StatRZTrap0eSVNotPresentRead, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/Supervisor/NPRead", STAMUNIT_OCCURENCES, "Number of supervisor mode not present read page faults.");
1655	STAM_REG(pVM, &pPGM->StatRZTrap0eSVNotPresentWrite, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/Supervisor/NPWrite", STAMUNIT_OCCURENCES, "Number of supervisor mode not present write page faults.");
1656	STAM_REG(pVM, &pPGM->StatRZTrap0eSVWrite, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/Supervisor/Write", STAMUNIT_OCCURENCES, "Number of supervisor mode write page faults.");
1657	STAM_REG(pVM, &pPGM->StatRZTrap0eSVReserved, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/Supervisor/Reserved", STAMUNIT_OCCURENCES, "Number of supervisor mode reserved bit page faults.");
1658	STAM_REG(pVM, &pPGM->StatRZTrap0eSNXE, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/Err/Supervisor/NXE", STAMUNIT_OCCURENCES, "Number of supervisor mode NXE page faults.");
1659	STAM_REG(pVM, &pPGM->StatRZTrap0eGuestPF, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/GuestPF", STAMUNIT_OCCURENCES, "Number of real guest page faults.");
1660	STAM_REG(pVM, &pPGM->StatRZTrap0eGuestPFUnh, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/GuestPF/Unhandled", STAMUNIT_OCCURENCES, "Number of real guest page faults from the 'unhandled' case.");
1661	STAM_REG(pVM, &pPGM->StatRZTrap0eGuestPFMapping, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/GuestPF/InMapping", STAMUNIT_OCCURENCES, "Number of real guest page faults in a mapping.");
1662	STAM_REG(pVM, &pPGM->StatRZTrap0eWPEmulInRZ, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/WP/InRZ", STAMUNIT_OCCURENCES, "Number of guest page faults due to X86_CR0_WP emulation.");
1663	STAM_REG(pVM, &pPGM->StatRZTrap0eWPEmulToR3, STAMTYPE_COUNTER, "/PGM/RZ/Trap0e/WP/ToR3", STAMUNIT_OCCURENCES, "Number of guest page faults due to X86_CR0_WP emulation (forward to R3 for emulation).");
1664	for (i = 0; i < RT_ELEMENTS(pPGM->StatRZTrap0ePD); i++)
1665	STAMR3RegisterF(pVM, &pPGM->StatRZTrap0ePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1666	"The number of traps in page directory n.", "/PGM/RZ/Trap0e/PD/%04X", i);
1667	STAM_REG(pVM, &pPGM->StatRZGuestCR3WriteHandled, STAMTYPE_COUNTER, "/PGM/RZ/CR3WriteHandled", STAMUNIT_OCCURENCES, "The number of times the Guest CR3 change was successfully handled.");
1668	STAM_REG(pVM, &pPGM->StatRZGuestCR3WriteUnhandled, STAMTYPE_COUNTER, "/PGM/RZ/CR3WriteUnhandled", STAMUNIT_OCCURENCES, "The number of times the Guest CR3 change was passed back to the recompiler.");
1669	STAM_REG(pVM, &pPGM->StatRZGuestCR3WriteConflict, STAMTYPE_COUNTER, "/PGM/RZ/CR3WriteConflict", STAMUNIT_OCCURENCES, "The number of times the Guest CR3 monitoring detected a conflict.");
1670	STAM_REG(pVM, &pPGM->StatRZGuestROMWriteHandled, STAMTYPE_COUNTER, "/PGM/RZ/ROMWriteHandled", STAMUNIT_OCCURENCES, "The number of times the Guest ROM change was successfully handled.");
1671	STAM_REG(pVM, &pPGM->StatRZGuestROMWriteUnhandled, STAMTYPE_COUNTER, "/PGM/RZ/ROMWriteUnhandled", STAMUNIT_OCCURENCES, "The number of times the Guest ROM change was passed back to the recompiler.");
1672
1673	/* HC only: */
1674
1675	/* RZ & R3: */
1676	STAM_REG(pVM, &pPGM->StatRZSyncCR3, STAMTYPE_PROFILE, "/PGM/RZ/SyncCR3", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() body.");
1677	STAM_REG(pVM, &pPGM->StatRZSyncCR3Handlers, STAMTYPE_PROFILE, "/PGM/RZ/SyncCR3/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() update handler section.");
1678	STAM_REG(pVM, &pPGM->StatRZSyncCR3HandlerVirtualUpdate, STAMTYPE_PROFILE, "/PGM/RZ/SyncCR3/Handlers/VirtualUpdate", STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler updates.");
1679	STAM_REG(pVM, &pPGM->StatRZSyncCR3HandlerVirtualReset, STAMTYPE_PROFILE, "/PGM/RZ/SyncCR3/Handlers/VirtualReset", STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler resets.");
1680	STAM_REG(pVM, &pPGM->StatRZSyncCR3Global, STAMTYPE_COUNTER, "/PGM/RZ/SyncCR3/Global", STAMUNIT_OCCURENCES, "The number of global CR3 syncs.");
1681	STAM_REG(pVM, &pPGM->StatRZSyncCR3NotGlobal, STAMTYPE_COUNTER, "/PGM/RZ/SyncCR3/NotGlobal", STAMUNIT_OCCURENCES, "The number of non-global CR3 syncs.");
1682	STAM_REG(pVM, &pPGM->StatRZSyncCR3DstCacheHit, STAMTYPE_COUNTER, "/PGM/RZ/SyncCR3/DstChacheHit", STAMUNIT_OCCURENCES, "The number of times we got some kind of a cache hit.");
1683	STAM_REG(pVM, &pPGM->StatRZSyncCR3DstFreed, STAMTYPE_COUNTER, "/PGM/RZ/SyncCR3/DstFreed", STAMUNIT_OCCURENCES, "The number of times we've had to free a shadow entry.");
1684	STAM_REG(pVM, &pPGM->StatRZSyncCR3DstFreedSrcNP, STAMTYPE_COUNTER, "/PGM/RZ/SyncCR3/DstFreedSrcNP", STAMUNIT_OCCURENCES, "The number of times we've had to free a shadow entry for which the source entry was not present.");
1685	STAM_REG(pVM, &pPGM->StatRZSyncCR3DstNotPresent, STAMTYPE_COUNTER, "/PGM/RZ/SyncCR3/DstNotPresent", STAMUNIT_OCCURENCES, "The number of times we've encountered a not present shadow entry for a present guest entry.");
1686	STAM_REG(pVM, &pPGM->StatRZSyncCR3DstSkippedGlobalPD, STAMTYPE_COUNTER, "/PGM/RZ/SyncCR3/DstSkippedGlobalPD", STAMUNIT_OCCURENCES, "The number of times a global page directory wasn't flushed.");
1687	STAM_REG(pVM, &pPGM->StatRZSyncCR3DstSkippedGlobalPT, STAMTYPE_COUNTER, "/PGM/RZ/SyncCR3/DstSkippedGlobalPT", STAMUNIT_OCCURENCES, "The number of times a page table with only global entries wasn't flushed.");
1688	STAM_REG(pVM, &pPGM->StatRZSyncPT, STAMTYPE_PROFILE, "/PGM/RZ/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of the pfnSyncPT() body.");
1689	STAM_REG(pVM, &pPGM->StatRZSyncPTFailed, STAMTYPE_COUNTER, "/PGM/RZ/SyncPT/Failed", STAMUNIT_OCCURENCES, "The number of times pfnSyncPT() failed.");
1690	STAM_REG(pVM, &pPGM->StatRZSyncPT4K, STAMTYPE_COUNTER, "/PGM/RZ/SyncPT/4K", STAMUNIT_OCCURENCES, "Nr of 4K PT syncs");
1691	STAM_REG(pVM, &pPGM->StatRZSyncPT4M, STAMTYPE_COUNTER, "/PGM/RZ/SyncPT/4M", STAMUNIT_OCCURENCES, "Nr of 4M PT syncs");
1692	STAM_REG(pVM, &pPGM->StatRZSyncPagePDNAs, STAMTYPE_COUNTER, "/PGM/RZ/SyncPagePDNAs", STAMUNIT_OCCURENCES, "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
1693	STAM_REG(pVM, &pPGM->StatRZSyncPagePDOutOfSync, STAMTYPE_COUNTER, "/PGM/RZ/SyncPagePDOutOfSync", STAMUNIT_OCCURENCES, "The number of time we've encountered an out-of-sync PD in SyncPage.");
1694	STAM_REG(pVM, &pPGM->StatRZAccessedPage, STAMTYPE_COUNTER, "/PGM/RZ/AccessedPage", STAMUNIT_OCCURENCES, "The number of pages marked not present for accessed bit emulation.");
1695	STAM_REG(pVM, &pPGM->StatRZDirtyBitTracking, STAMTYPE_PROFILE, "/PGM/RZ/DirtyPage", STAMUNIT_TICKS_PER_CALL, "Profiling the dirty bit tracking in CheckPageFault().");
1696	STAM_REG(pVM, &pPGM->StatRZDirtyPage, STAMTYPE_COUNTER, "/PGM/RZ/DirtyPage/Mark", STAMUNIT_OCCURENCES, "The number of pages marked read-only for dirty bit tracking.");
1697	STAM_REG(pVM, &pPGM->StatRZDirtyPageBig, STAMTYPE_COUNTER, "/PGM/RZ/DirtyPage/MarkBig", STAMUNIT_OCCURENCES, "The number of 4MB pages marked read-only for dirty bit tracking.");
1698	STAM_REG(pVM, &pPGM->StatRZDirtyPageSkipped, STAMTYPE_COUNTER, "/PGM/RZ/DirtyPage/Skipped", STAMUNIT_OCCURENCES, "The number of pages already dirty or readonly.");
1699	STAM_REG(pVM, &pPGM->StatRZDirtyPageTrap, STAMTYPE_COUNTER, "/PGM/RZ/DirtyPage/Trap", STAMUNIT_OCCURENCES, "The number of traps generated for dirty bit tracking.");
1700	STAM_REG(pVM, &pPGM->StatRZDirtiedPage, STAMTYPE_COUNTER, "/PGM/RZ/DirtyPage/SetDirty", STAMUNIT_OCCURENCES, "The number of pages marked dirty because of write accesses.");
1701	STAM_REG(pVM, &pPGM->StatRZDirtyTrackRealPF, STAMTYPE_COUNTER, "/PGM/RZ/DirtyPage/RealPF", STAMUNIT_OCCURENCES, "The number of real pages faults during dirty bit tracking.");
1702	STAM_REG(pVM, &pPGM->StatRZPageAlreadyDirty, STAMTYPE_COUNTER, "/PGM/RZ/DirtyPage/AlreadySet", STAMUNIT_OCCURENCES, "The number of pages already marked dirty because of write accesses.");
1703	STAM_REG(pVM, &pPGM->StatRZInvalidatePage, STAMTYPE_PROFILE, "/PGM/RZ/InvalidatePage", STAMUNIT_TICKS_PER_CALL, "PGMInvalidatePage() profiling.");
1704	STAM_REG(pVM, &pPGM->StatRZInvalidatePage4KBPages, STAMTYPE_COUNTER, "/PGM/RZ/InvalidatePage/4KBPages", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a 4KB page.");
1705	STAM_REG(pVM, &pPGM->StatRZInvalidatePage4MBPages, STAMTYPE_COUNTER, "/PGM/RZ/InvalidatePage/4MBPages", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a 4MB page.");
1706	STAM_REG(pVM, &pPGM->StatRZInvalidatePage4MBPagesSkip, STAMTYPE_COUNTER, "/PGM/RZ/InvalidatePage/4MBPagesSkip",STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() skipped a 4MB page.");
1707	STAM_REG(pVM, &pPGM->StatRZInvalidatePagePDMappings, STAMTYPE_COUNTER, "/PGM/RZ/InvalidatePage/PDMappings", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict).");
1708	STAM_REG(pVM, &pPGM->StatRZInvalidatePagePDNAs, STAMTYPE_COUNTER, "/PGM/RZ/InvalidatePage/PDNAs", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a not accessed page directory.");
1709	STAM_REG(pVM, &pPGM->StatRZInvalidatePagePDNPs, STAMTYPE_COUNTER, "/PGM/RZ/InvalidatePage/PDNPs", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a not present page directory.");
1710	STAM_REG(pVM, &pPGM->StatRZInvalidatePagePDOutOfSync, STAMTYPE_COUNTER, "/PGM/RZ/InvalidatePage/PDOutOfSync", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for an out of sync page directory.");
1711	STAM_REG(pVM, &pPGM->StatRZInvalidatePageSkipped, STAMTYPE_COUNTER, "/PGM/RZ/InvalidatePage/Skipped", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
1712	STAM_REG(pVM, &pPGM->StatRZVirtHandlerSearchByPhys, STAMTYPE_PROFILE, "/PGM/RZ/VirtHandlerSearchByPhys", STAMUNIT_TICKS_PER_CALL, "Profiling of pgmHandlerVirtualFindByPhysAddr.");
1713	STAM_REG(pVM, &pPGM->StatRZPhysHandlerReset, STAMTYPE_COUNTER, "/PGM/RZ/PhysHandlerReset", STAMUNIT_OCCURENCES, "The number of times PGMHandlerPhysicalReset is called.");
1714	STAM_REG(pVM, &pPGM->StatRZPageOutOfSyncSupervisor, STAMTYPE_COUNTER, "/PGM/RZ/OutOfSync/SuperVisor", STAMUNIT_OCCURENCES, "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1715	STAM_REG(pVM, &pPGM->StatRZPageOutOfSyncUser, STAMTYPE_COUNTER, "/PGM/RZ/OutOfSync/User", STAMUNIT_OCCURENCES, "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1716	STAM_REG(pVM, &pPGM->StatRZPrefetch, STAMTYPE_PROFILE, "/PGM/RZ/Prefetch", STAMUNIT_TICKS_PER_CALL, "PGMPrefetchPage profiling.");
1717	STAM_REG(pVM, &pPGM->StatRZChunkR3MapTlbHits, STAMTYPE_COUNTER, "/PGM/ChunkR3Map/TlbHitsRZ", STAMUNIT_OCCURENCES, "TLB hits.");
1718	STAM_REG(pVM, &pPGM->StatRZChunkR3MapTlbMisses, STAMTYPE_COUNTER, "/PGM/ChunkR3Map/TlbMissesRZ", STAMUNIT_OCCURENCES, "TLB misses.");
1719	STAM_REG(pVM, &pPGM->StatRZPageMapTlbHits, STAMTYPE_COUNTER, "/PGM/RZ/Page/MapTlbHits", STAMUNIT_OCCURENCES, "TLB hits.");
1720	STAM_REG(pVM, &pPGM->StatRZPageMapTlbMisses, STAMTYPE_COUNTER, "/PGM/RZ/Page/MapTlbMisses", STAMUNIT_OCCURENCES, "TLB misses.");
1721	STAM_REG(pVM, &pPGM->StatRZPageReplaceShared, STAMTYPE_COUNTER, "/PGM/RZ/Page/ReplacedShared", STAMUNIT_OCCURENCES, "Times a shared page was replaced.");
1722	STAM_REG(pVM, &pPGM->StatRZPageReplaceZero, STAMTYPE_COUNTER, "/PGM/RZ/Page/ReplacedZero", STAMUNIT_OCCURENCES, "Times the zero page was replaced.");
1723	/// @todo STAM_REG(pVM, &pPGM->StatRZPageHandyAllocs, STAMTYPE_COUNTER, "/PGM/RZ/Page/HandyAllocs", STAMUNIT_OCCURENCES, "Number of times we've allocated more handy pages.");
1724	STAM_REG(pVM, &pPGM->StatRZFlushTLB, STAMTYPE_PROFILE, "/PGM/RZ/FlushTLB", STAMUNIT_OCCURENCES, "Profiling of the PGMFlushTLB() body.");
1725	STAM_REG(pVM, &pPGM->StatRZFlushTLBNewCR3, STAMTYPE_COUNTER, "/PGM/RZ/FlushTLB/NewCR3", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
1726	STAM_REG(pVM, &pPGM->StatRZFlushTLBNewCR3Global, STAMTYPE_COUNTER, "/PGM/RZ/FlushTLB/NewCR3Global", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
1727	STAM_REG(pVM, &pPGM->StatRZFlushTLBSameCR3, STAMTYPE_COUNTER, "/PGM/RZ/FlushTLB/SameCR3", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
1728	STAM_REG(pVM, &pPGM->StatRZFlushTLBSameCR3Global, STAMTYPE_COUNTER, "/PGM/RZ/FlushTLB/SameCR3Global", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
1729	STAM_REG(pVM, &pPGM->StatRZGstModifyPage, STAMTYPE_PROFILE, "/PGM/RZ/GstModifyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGstModifyPage() body.");
1730
1731	STAM_REG(pVM, &pPGM->StatR3SyncCR3, STAMTYPE_PROFILE, "/PGM/R3/SyncCR3", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() body.");
1732	STAM_REG(pVM, &pPGM->StatR3SyncCR3Handlers, STAMTYPE_PROFILE, "/PGM/R3/SyncCR3/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() update handler section.");
1733	STAM_REG(pVM, &pPGM->StatR3SyncCR3HandlerVirtualUpdate, STAMTYPE_PROFILE, "/PGM/R3/SyncCR3/Handlers/VirtualUpdate", STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler updates.");
1734	STAM_REG(pVM, &pPGM->StatR3SyncCR3HandlerVirtualReset, STAMTYPE_PROFILE, "/PGM/R3/SyncCR3/Handlers/VirtualReset", STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler resets.");
1735	STAM_REG(pVM, &pPGM->StatR3SyncCR3Global, STAMTYPE_COUNTER, "/PGM/R3/SyncCR3/Global", STAMUNIT_OCCURENCES, "The number of global CR3 syncs.");
1736	STAM_REG(pVM, &pPGM->StatR3SyncCR3NotGlobal, STAMTYPE_COUNTER, "/PGM/R3/SyncCR3/NotGlobal", STAMUNIT_OCCURENCES, "The number of non-global CR3 syncs.");
1737	STAM_REG(pVM, &pPGM->StatR3SyncCR3DstCacheHit, STAMTYPE_COUNTER, "/PGM/R3/SyncCR3/DstChacheHit", STAMUNIT_OCCURENCES, "The number of times we got some kind of a cache hit.");
1738	STAM_REG(pVM, &pPGM->StatR3SyncCR3DstFreed, STAMTYPE_COUNTER, "/PGM/R3/SyncCR3/DstFreed", STAMUNIT_OCCURENCES, "The number of times we've had to free a shadow entry.");
1739	STAM_REG(pVM, &pPGM->StatR3SyncCR3DstFreedSrcNP, STAMTYPE_COUNTER, "/PGM/R3/SyncCR3/DstFreedSrcNP", STAMUNIT_OCCURENCES, "The number of times we've had to free a shadow entry for which the source entry was not present.");
1740	STAM_REG(pVM, &pPGM->StatR3SyncCR3DstNotPresent, STAMTYPE_COUNTER, "/PGM/R3/SyncCR3/DstNotPresent", STAMUNIT_OCCURENCES, "The number of times we've encountered a not present shadow entry for a present guest entry.");
1741	STAM_REG(pVM, &pPGM->StatR3SyncCR3DstSkippedGlobalPD, STAMTYPE_COUNTER, "/PGM/R3/SyncCR3/DstSkippedGlobalPD", STAMUNIT_OCCURENCES, "The number of times a global page directory wasn't flushed.");
1742	STAM_REG(pVM, &pPGM->StatR3SyncCR3DstSkippedGlobalPT, STAMTYPE_COUNTER, "/PGM/R3/SyncCR3/DstSkippedGlobalPT", STAMUNIT_OCCURENCES, "The number of times a page table with only global entries wasn't flushed.");
1743	STAM_REG(pVM, &pPGM->StatR3SyncPT, STAMTYPE_PROFILE, "/PGM/R3/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of the pfnSyncPT() body.");
1744	STAM_REG(pVM, &pPGM->StatR3SyncPTFailed, STAMTYPE_COUNTER, "/PGM/R3/SyncPT/Failed", STAMUNIT_OCCURENCES, "The number of times pfnSyncPT() failed.");
1745	STAM_REG(pVM, &pPGM->StatR3SyncPT4K, STAMTYPE_COUNTER, "/PGM/R3/SyncPT/4K", STAMUNIT_OCCURENCES, "Nr of 4K PT syncs");
1746	STAM_REG(pVM, &pPGM->StatR3SyncPT4M, STAMTYPE_COUNTER, "/PGM/R3/SyncPT/4M", STAMUNIT_OCCURENCES, "Nr of 4M PT syncs");
1747	STAM_REG(pVM, &pPGM->StatR3SyncPagePDNAs, STAMTYPE_COUNTER, "/PGM/R3/SyncPagePDNAs", STAMUNIT_OCCURENCES, "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
1748	STAM_REG(pVM, &pPGM->StatR3SyncPagePDOutOfSync, STAMTYPE_COUNTER, "/PGM/R3/SyncPagePDOutOfSync", STAMUNIT_OCCURENCES, "The number of time we've encountered an out-of-sync PD in SyncPage.");
1749	STAM_REG(pVM, &pPGM->StatR3AccessedPage, STAMTYPE_COUNTER, "/PGM/R3/AccessedPage", STAMUNIT_OCCURENCES, "The number of pages marked not present for accessed bit emulation.");
1750	STAM_REG(pVM, &pPGM->StatR3DirtyBitTracking, STAMTYPE_PROFILE, "/PGM/R3/DirtyPage", STAMUNIT_TICKS_PER_CALL, "Profiling the dirty bit tracking in CheckPageFault().");
1751	STAM_REG(pVM, &pPGM->StatR3DirtyPage, STAMTYPE_COUNTER, "/PGM/R3/DirtyPage/Mark", STAMUNIT_OCCURENCES, "The number of pages marked read-only for dirty bit tracking.");
1752	STAM_REG(pVM, &pPGM->StatR3DirtyPageBig, STAMTYPE_COUNTER, "/PGM/R3/DirtyPage/MarkBig", STAMUNIT_OCCURENCES, "The number of 4MB pages marked read-only for dirty bit tracking.");
1753	STAM_REG(pVM, &pPGM->StatR3DirtyPageSkipped, STAMTYPE_COUNTER, "/PGM/R3/DirtyPage/Skipped", STAMUNIT_OCCURENCES, "The number of pages already dirty or readonly.");
1754	STAM_REG(pVM, &pPGM->StatR3DirtyPageTrap, STAMTYPE_COUNTER, "/PGM/R3/DirtyPage/Trap", STAMUNIT_OCCURENCES, "The number of traps generated for dirty bit tracking.");
1755	STAM_REG(pVM, &pPGM->StatR3DirtiedPage, STAMTYPE_COUNTER, "/PGM/R3/DirtyPage/SetDirty", STAMUNIT_OCCURENCES, "The number of pages marked dirty because of write accesses.");
1756	STAM_REG(pVM, &pPGM->StatR3DirtyTrackRealPF, STAMTYPE_COUNTER, "/PGM/R3/DirtyPage/RealPF", STAMUNIT_OCCURENCES, "The number of real pages faults during dirty bit tracking.");
1757	STAM_REG(pVM, &pPGM->StatR3PageAlreadyDirty, STAMTYPE_COUNTER, "/PGM/R3/DirtyPage/AlreadySet", STAMUNIT_OCCURENCES, "The number of pages already marked dirty because of write accesses.");
1758	STAM_REG(pVM, &pPGM->StatR3InvalidatePage, STAMTYPE_PROFILE, "/PGM/R3/InvalidatePage", STAMUNIT_TICKS_PER_CALL, "PGMInvalidatePage() profiling.");
1759	STAM_REG(pVM, &pPGM->StatR3InvalidatePage4KBPages, STAMTYPE_COUNTER, "/PGM/R3/InvalidatePage/4KBPages", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a 4KB page.");
1760	STAM_REG(pVM, &pPGM->StatR3InvalidatePage4MBPages, STAMTYPE_COUNTER, "/PGM/R3/InvalidatePage/4MBPages", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a 4MB page.");
1761	STAM_REG(pVM, &pPGM->StatR3InvalidatePage4MBPagesSkip, STAMTYPE_COUNTER, "/PGM/R3/InvalidatePage/4MBPagesSkip",STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() skipped a 4MB page.");
1762	STAM_REG(pVM, &pPGM->StatR3InvalidatePagePDMappings, STAMTYPE_COUNTER, "/PGM/R3/InvalidatePage/PDMappings", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict).");
1763	STAM_REG(pVM, &pPGM->StatR3InvalidatePagePDNAs, STAMTYPE_COUNTER, "/PGM/R3/InvalidatePage/PDNAs", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a not accessed page directory.");
1764	STAM_REG(pVM, &pPGM->StatR3InvalidatePagePDNPs, STAMTYPE_COUNTER, "/PGM/R3/InvalidatePage/PDNPs", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for a not present page directory.");
1765	STAM_REG(pVM, &pPGM->StatR3InvalidatePagePDOutOfSync, STAMTYPE_COUNTER, "/PGM/R3/InvalidatePage/PDOutOfSync", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was called for an out of sync page directory.");
1766	STAM_REG(pVM, &pPGM->StatR3InvalidatePageSkipped, STAMTYPE_COUNTER, "/PGM/R3/InvalidatePage/Skipped", STAMUNIT_OCCURENCES, "The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
1767	STAM_REG(pVM, &pPGM->StatR3VirtHandlerSearchByPhys, STAMTYPE_PROFILE, "/PGM/R3/VirtHandlerSearchByPhys", STAMUNIT_TICKS_PER_CALL, "Profiling of pgmHandlerVirtualFindByPhysAddr.");
1768	STAM_REG(pVM, &pPGM->StatR3PhysHandlerReset, STAMTYPE_COUNTER, "/PGM/R3/PhysHandlerReset", STAMUNIT_OCCURENCES, "The number of times PGMHandlerPhysicalReset is called.");
1769	STAM_REG(pVM, &pPGM->StatR3PageOutOfSyncSupervisor, STAMTYPE_COUNTER, "/PGM/R3/OutOfSync/SuperVisor", STAMUNIT_OCCURENCES, "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1770	STAM_REG(pVM, &pPGM->StatR3PageOutOfSyncUser, STAMTYPE_COUNTER, "/PGM/R3/OutOfSync/User", STAMUNIT_OCCURENCES, "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1771	STAM_REG(pVM, &pPGM->StatR3Prefetch, STAMTYPE_PROFILE, "/PGM/R3/Prefetch", STAMUNIT_TICKS_PER_CALL, "PGMPrefetchPage profiling.");
1772	STAM_REG(pVM, &pPGM->StatR3ChunkR3MapTlbHits, STAMTYPE_COUNTER, "/PGM/ChunkR3Map/TlbHitsR3", STAMUNIT_OCCURENCES, "TLB hits.");
1773	STAM_REG(pVM, &pPGM->StatR3ChunkR3MapTlbMisses, STAMTYPE_COUNTER, "/PGM/ChunkR3Map/TlbMissesR3", STAMUNIT_OCCURENCES, "TLB misses.");
1774	STAM_REG(pVM, &pPGM->StatR3PageMapTlbHits, STAMTYPE_COUNTER, "/PGM/R3/Page/MapTlbHits", STAMUNIT_OCCURENCES, "TLB hits.");
1775	STAM_REG(pVM, &pPGM->StatR3PageMapTlbMisses, STAMTYPE_COUNTER, "/PGM/R3/Page/MapTlbMisses", STAMUNIT_OCCURENCES, "TLB misses.");
1776	STAM_REG(pVM, &pPGM->StatR3PageReplaceShared, STAMTYPE_COUNTER, "/PGM/R3/Page/ReplacedShared", STAMUNIT_OCCURENCES, "Times a shared page was replaced.");
1777	STAM_REG(pVM, &pPGM->StatR3PageReplaceZero, STAMTYPE_COUNTER, "/PGM/R3/Page/ReplacedZero", STAMUNIT_OCCURENCES, "Times the zero page was replaced.");
1778	/// @todo STAM_REG(pVM, &pPGM->StatR3PageHandyAllocs, STAMTYPE_COUNTER, "/PGM/R3/Page/HandyAllocs", STAMUNIT_OCCURENCES, "Number of times we've allocated more handy pages.");
1779	STAM_REG(pVM, &pPGM->StatR3FlushTLB, STAMTYPE_PROFILE, "/PGM/R3/FlushTLB", STAMUNIT_OCCURENCES, "Profiling of the PGMFlushTLB() body.");
1780	STAM_REG(pVM, &pPGM->StatR3FlushTLBNewCR3, STAMTYPE_COUNTER, "/PGM/R3/FlushTLB/NewCR3", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
1781	STAM_REG(pVM, &pPGM->StatR3FlushTLBNewCR3Global, STAMTYPE_COUNTER, "/PGM/R3/FlushTLB/NewCR3Global", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
1782	STAM_REG(pVM, &pPGM->StatR3FlushTLBSameCR3, STAMTYPE_COUNTER, "/PGM/R3/FlushTLB/SameCR3", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
1783	STAM_REG(pVM, &pPGM->StatR3FlushTLBSameCR3Global, STAMTYPE_COUNTER, "/PGM/R3/FlushTLB/SameCR3Global", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
1784	STAM_REG(pVM, &pPGM->StatR3GstModifyPage, STAMTYPE_PROFILE, "/PGM/R3/GstModifyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGstModifyPage() body.");
1785	#endif /* VBOX_WITH_STATISTICS */
1786	}
1787
1788
1789	/**
1790	* Init the PGM bits that rely on VMMR0 and MM to be fully initialized.
1791	*
1792	* The dynamic mapping area will also be allocated and initialized at this
1793	* time. We could allocate it during PGMR3Init of course, but the mapping
1794	* wouldn't be allocated at that time preventing us from setting up the
1795	* page table entries with the dummy page.
1796	*
1797	* @returns VBox status code.
1798	* @param pVM VM handle.
1799	*/
1800	VMMR3DECL(int) PGMR3InitDynMap(PVM pVM)
1801	{
1802	RTGCPTR GCPtr;
1803	int rc;
1804
1805	/*
1806	* Reserve space for the dynamic mappings.
1807	*/
1808	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping", &GCPtr);
1809	if (RT_SUCCESS(rc))
1810	pVM->pgm.s.pbDynPageMapBaseGC = GCPtr;
1811
1812	if ( RT_SUCCESS(rc)
1813	&& (pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_PAE_SHIFT) != ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_PAE_SHIFT))
1814	{
1815	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping not crossing", &GCPtr);
1816	if (RT_SUCCESS(rc))
1817	pVM->pgm.s.pbDynPageMapBaseGC = GCPtr;
1818	}
1819	if (RT_SUCCESS(rc))
1820	{
1821	AssertRelease((pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_PAE_SHIFT) == ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_PAE_SHIFT));
1822	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1823	}
1824	return rc;
1825	}
1826
1827
1828	/**
1829	* Ring-3 init finalizing.
1830	*
1831	* @returns VBox status code.
1832	* @param pVM The VM handle.
1833	*/
1834	VMMR3DECL(int) PGMR3InitFinalize(PVM pVM)
1835	{
1836	int rc;
1837
1838	/*
1839	* Reserve space for the dynamic mappings.
1840	* Initialize the dynamic mapping pages with dummy pages to simply the cache.
1841	*/
1842	/* get the pointer to the page table entries. */
1843	PPGMMAPPING pMapping = pgmGetMapping(pVM, pVM->pgm.s.pbDynPageMapBaseGC);
1844	AssertRelease(pMapping);
1845	const uintptr_t off = pVM->pgm.s.pbDynPageMapBaseGC - pMapping->GCPtr;
1846	const unsigned iPT = off >> X86_PD_SHIFT;
1847	const unsigned iPG = (off >> X86_PT_SHIFT) & X86_PT_MASK;
1848	pVM->pgm.s.paDynPageMap32BitPTEsGC = pMapping->aPTs[iPT].pPTRC + iPG * sizeof(pMapping->aPTs[0].pPTR3->a[0]);
1849	pVM->pgm.s.paDynPageMapPaePTEsGC = pMapping->aPTs[iPT].paPaePTsRC + iPG * sizeof(pMapping->aPTs[0].paPaePTsR3->a[0]);
1850
1851	/* init cache */
1852	RTHCPHYS HCPhysDummy = MMR3PageDummyHCPhys(pVM);
1853	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.aHCPhysDynPageMapCache); i++)
1854	pVM->pgm.s.aHCPhysDynPageMapCache[i] = HCPhysDummy;
1855
1856	for (unsigned i = 0; i < MM_HYPER_DYNAMIC_SIZE; i += PAGE_SIZE)
1857	{
1858	rc = PGMMap(pVM, pVM->pgm.s.pbDynPageMapBaseGC + i, HCPhysDummy, PAGE_SIZE, 0);
1859	AssertRCReturn(rc, rc);
1860	}
1861
1862	/*
1863	* Note that AMD uses all the 8 reserved bits for the address (so 40 bits in total);
1864	* Intel only goes up to 36 bits, so we stick to 36 as well.
1865	*/
1866	/** @todo How to test for the 40 bits support? Long mode seems to be the test criterium. */
1867	uint32_t u32Dummy, u32Features;
1868	CPUMGetGuestCpuId(pVM, 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
1869
1870	if (u32Features & X86_CPUID_FEATURE_EDX_PSE36)
1871	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(36) - 1;
1872	else
1873	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(32) - 1;
1874
1875	LogRel(("PGMR3InitFinalize: 4 MB PSE mask %RGp\n", pVM->pgm.s.GCPhys4MBPSEMask));
1876	return rc;
1877	}
1878
1879
1880	/**
1881	* Applies relocations to data and code managed by this component.
1882	*
1883	* This function will be called at init and whenever the VMM need to relocate it
1884	* self inside the GC.
1885	*
1886	* @param pVM The VM.
1887	* @param offDelta Relocation delta relative to old location.
1888	*/
1889	VMMR3DECL(void) PGMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
1890	{
1891	LogFlow(("PGMR3Relocate %RGv to %RGv\n", pVM->pgm.s.GCPtrCR3Mapping, pVM->pgm.s.GCPtrCR3Mapping + offDelta));
1892
1893	/*
1894	* Paging stuff.
1895	*/
1896	pVM->pgm.s.GCPtrCR3Mapping += offDelta;
1897	/** @todo move this into shadow and guest specific relocation functions. */
1898	pVM->pgm.s.pGst32BitPdRC += offDelta;
1899	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.apGstPaePDsRC); i++)
1900	{
1901	pVM->pgm.s.apGstPaePDsRC[i] += offDelta;
1902	}
1903	pVM->pgm.s.pGstPaePdptRC += offDelta;
1904
1905	pVM->pgm.s.pShwPageCR3RC += offDelta;
1906
1907	pgmR3ModeDataInit(pVM, true /* resolve GC/R0 symbols */);
1908	pgmR3ModeDataSwitch(pVM, pVM->pgm.s.enmShadowMode, pVM->pgm.s.enmGuestMode);
1909
1910	PGM_SHW_PFN(Relocate, pVM)(pVM, offDelta);
1911	PGM_GST_PFN(Relocate, pVM)(pVM, offDelta);
1912	PGM_BTH_PFN(Relocate, pVM)(pVM, offDelta);
1913
1914	/*
1915	* Trees.
1916	*/
1917	pVM->pgm.s.pTreesRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pTreesR3);
1918
1919	/*
1920	* Ram ranges.
1921	*/
1922	if (pVM->pgm.s.pRamRangesR3)
1923	{
1924	/* Update the pSelfRC pointers and relink them. */
1925	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
1926	if (!(pCur->fFlags & PGM_RAM_RANGE_FLAGS_FLOATING))
1927	pCur->pSelfRC = MMHyperCCToRC(pVM, pCur);
1928	pgmR3PhysRelinkRamRanges(pVM);
1929	}
1930
1931	/*
1932	* Update the two page directories with all page table mappings.
1933	* (One or more of them have changed, that's why we're here.)
1934	*/
1935	pVM->pgm.s.pMappingsRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pMappingsR3);
1936	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur->pNextR3; pCur = pCur->pNextR3)
1937	pCur->pNextRC = MMHyperR3ToRC(pVM, pCur->pNextR3);
1938
1939	/* Relocate GC addresses of Page Tables. */
1940	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
1941	{
1942	for (RTHCUINT i = 0; i < pCur->cPTs; i++)
1943	{
1944	pCur->aPTs[i].pPTRC = MMHyperR3ToRC(pVM, pCur->aPTs[i].pPTR3);
1945	pCur->aPTs[i].paPaePTsRC = MMHyperR3ToRC(pVM, pCur->aPTs[i].paPaePTsR3);
1946	}
1947	}
1948
1949	/*
1950	* Dynamic page mapping area.
1951	*/
1952	pVM->pgm.s.paDynPageMap32BitPTEsGC += offDelta;
1953	pVM->pgm.s.paDynPageMapPaePTEsGC += offDelta;
1954	pVM->pgm.s.pbDynPageMapBaseGC += offDelta;
1955
1956	/*
1957	* The Zero page.
1958	*/
1959	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
1960	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1961	AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTR0PTR \|\| !VMMIsHwVirtExtForced(pVM));
1962	#else
1963	AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTR0PTR);
1964	#endif
1965
1966	/*
1967	* Physical and virtual handlers.
1968	*/
1969	RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, true, pgmR3RelocatePhysHandler, &offDelta);
1970	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesR3->VirtHandlers, true, pgmR3RelocateVirtHandler, &offDelta);
1971	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesR3->HyperVirtHandlers, true, pgmR3RelocateHyperVirtHandler, &offDelta);
1972
1973	/*
1974	* The page pool.
1975	*/
1976	pgmR3PoolRelocate(pVM);
1977	}
1978
1979
1980	/**
1981	* Callback function for relocating a physical access handler.
1982	*
1983	* @returns 0 (continue enum)
1984	* @param pNode Pointer to a PGMPHYSHANDLER node.
1985	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
1986	* not certain the delta will fit in a void pointer for all possible configs.
1987	*/
1988	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser)
1989	{
1990	PPGMPHYSHANDLER pHandler = (PPGMPHYSHANDLER)pNode;
1991	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
1992	if (pHandler->pfnHandlerRC)
1993	pHandler->pfnHandlerRC += offDelta;
1994	if (pHandler->pvUserRC >= 0x10000)
1995	pHandler->pvUserRC += offDelta;
1996	return 0;
1997	}
1998
1999
2000	/**
2001	* Callback function for relocating a virtual access handler.
2002	*
2003	* @returns 0 (continue enum)
2004	* @param pNode Pointer to a PGMVIRTHANDLER node.
2005	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
2006	* not certain the delta will fit in a void pointer for all possible configs.
2007	*/
2008	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
2009	{
2010	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
2011	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
2012	Assert( pHandler->enmType == PGMVIRTHANDLERTYPE_ALL
2013	\|\| pHandler->enmType == PGMVIRTHANDLERTYPE_WRITE);
2014	Assert(pHandler->pfnHandlerRC);
2015	pHandler->pfnHandlerRC += offDelta;
2016	return 0;
2017	}
2018
2019
2020	/**
2021	* Callback function for relocating a virtual access handler for the hypervisor mapping.
2022	*
2023	* @returns 0 (continue enum)
2024	* @param pNode Pointer to a PGMVIRTHANDLER node.
2025	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
2026	* not certain the delta will fit in a void pointer for all possible configs.
2027	*/
2028	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
2029	{
2030	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
2031	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
2032	Assert(pHandler->enmType == PGMVIRTHANDLERTYPE_HYPERVISOR);
2033	Assert(pHandler->pfnHandlerRC);
2034	pHandler->pfnHandlerRC += offDelta;
2035	return 0;
2036	}
2037
2038
2039	/**
2040	* The VM is being reset.
2041	*
2042	* For the PGM component this means that any PD write monitors
2043	* needs to be removed.
2044	*
2045	* @param pVM VM handle.
2046	*/
2047	VMMR3DECL(void) PGMR3Reset(PVM pVM)
2048	{
2049	LogFlow(("PGMR3Reset:\n"));
2050	VM_ASSERT_EMT(pVM);
2051
2052	pgmLock(pVM);
2053
2054	/*
2055	* Unfix any fixed mappings and disable CR3 monitoring.
2056	*/
2057	pVM->pgm.s.fMappingsFixed = false;
2058	pVM->pgm.s.GCPtrMappingFixed = 0;
2059	pVM->pgm.s.cbMappingFixed = 0;
2060
2061	/* Exit the guest paging mode before the pgm pool gets reset.
2062	* Important to clean up the amd64 case.
2063	*/
2064	int rc = PGM_GST_PFN(Exit, pVM)(pVM);
2065	AssertRC(rc);
2066	#ifdef DEBUG
2067	DBGFR3InfoLog(pVM, "mappings", NULL);
2068	DBGFR3InfoLog(pVM, "handlers", "all nostat");
2069	#endif
2070
2071	/*
2072	* Reset the shadow page pool.
2073	*/
2074	pgmR3PoolReset(pVM);
2075
2076	/*
2077	* Re-init other members.
2078	*/
2079	pVM->pgm.s.fA20Enabled = true;
2080
2081	/*
2082	* Clear the FFs PGM owns.
2083	*/
2084	VM_FF_CLEAR(pVM, VM_FF_PGM_SYNC_CR3);
2085	VM_FF_CLEAR(pVM, VM_FF_PGM_SYNC_CR3_NON_GLOBAL);
2086
2087	/*
2088	* Reset (zero) RAM pages.
2089	*/
2090	rc = pgmR3PhysRamReset(pVM);
2091	if (RT_SUCCESS(rc))
2092	{
2093	#ifdef VBOX_WITH_NEW_PHYS_CODE
2094	/*
2095	* Reset (zero) shadow ROM pages.
2096	*/
2097	rc = pgmR3PhysRomReset(pVM);
2098	#endif
2099	if (RT_SUCCESS(rc))
2100	{
2101	/*
2102	* Switch mode back to real mode.
2103	*/
2104	rc = PGMR3ChangeMode(pVM, PGMMODE_REAL);
2105	STAM_REL_COUNTER_RESET(&pVM->pgm.s.cGuestModeChanges);
2106	}
2107	}
2108
2109	pgmUnlock(pVM);
2110	//return rc;
2111	AssertReleaseRC(rc);
2112	}
2113
2114
2115	#ifdef VBOX_STRICT
2116	/**
2117	* VM state change callback for clearing fNoMorePhysWrites after
2118	* a snapshot has been created.
2119	*/
2120	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser)
2121	{
2122	if (enmState == VMSTATE_RUNNING)
2123	pVM->pgm.s.fNoMorePhysWrites = false;
2124	}
2125	#endif
2126
2127
2128	/**
2129	* Terminates the PGM.
2130	*
2131	* @returns VBox status code.
2132	* @param pVM Pointer to VM structure.
2133	*/
2134	VMMR3DECL(int) PGMR3Term(PVM pVM)
2135	{
2136	PGMDeregisterStringFormatTypes();
2137	return PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
2138	}
2139
2140
2141	/**
2142	* Terminates the per-VCPU PGM.
2143	*
2144	* Termination means cleaning up and freeing all resources,
2145	* the VM it self is at this point powered off or suspended.
2146	*
2147	* @returns VBox status code.
2148	* @param pVM The VM to operate on.
2149	*/
2150	VMMR3DECL(int) PGMR3TermCPU(PVM pVM)
2151	{
2152	return 0;
2153	}
2154
2155	#ifdef VBOX_WITH_NEW_PHYS_CODE
2156
2157	/**
2158	* Find the ROM tracking structure for the given page.
2159	*
2160	* @returns Pointer to the ROM page structure. NULL if the caller didn't check
2161	* that it's a ROM page.
2162	* @param pVM The VM handle.
2163	* @param GCPhys The address of the ROM page.
2164	*/
2165	static PPGMROMPAGE pgmR3GetRomPage(PVM pVM, RTGCPHYS GCPhys)
2166	{
2167	for (PPGMROMRANGE pRomRange = pVM->pgm.s.CTX_SUFF(pRomRanges);
2168	pRomRange;
2169	pRomRange = pRomRange->CTX_SUFF(pNext))
2170	{
2171	RTGCPHYS off = GCPhys - pRomRange->GCPhys;
2172	if (GCPhys - pRomRange->GCPhys < pRomRange->cb)
2173	return &pRomRange->aPages[off >> PAGE_SHIFT];
2174	}
2175	return NULL;
2176	}
2177
2178
2179	/**
2180	* Save zero indicator + bits for the specified page.
2181	*
2182	* @returns VBox status code, errors are logged/asserted before returning.
2183	* @param pVM The VM handle.
2184	* @param pSSH The saved state handle.
2185	* @param pPage The page to save.
2186	* @param GCPhys The address of the page.
2187	* @param pRam The ram range (for error logging).
2188	*/
2189	static int pgmR3SavePage(PVM pVM, PSSMHANDLE pSSM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2190	{
2191	int rc;
2192	if (PGM_PAGE_IS_ZERO(pPage))
2193	rc = SSMR3PutU8(pSSM, 0);
2194	else
2195	{
2196	void const *pvPage;
2197	rc = pgmPhysGCPhys2CCPtrInternalReadOnly(pVM, pPage, GCPhys, &pvPage);
2198	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] GCPhys=%#x %s\n", pPage, GCPhys, pRam->pszDesc), rc);
2199
2200	SSMR3PutU8(pSSM, 1);
2201	rc = SSMR3PutMem(pSSM, pvPage, PAGE_SIZE);
2202	}
2203	return rc;
2204	}
2205
2206
2207	/**
2208	* Save a shadowed ROM page.
2209	*
2210	* Format: Type, protection, and two pages with zero indicators.
2211	*
2212	* @returns VBox status code, errors are logged/asserted before returning.
2213	* @param pVM The VM handle.
2214	* @param pSSH The saved state handle.
2215	* @param pPage The page to save.
2216	* @param GCPhys The address of the page.
2217	* @param pRam The ram range (for error logging).
2218	*/
2219	static int pgmR3SaveShadowedRomPage(PVM pVM, PSSMHANDLE pSSM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2220	{
2221	/* Need to save both pages and the current state. */
2222	PPGMROMPAGE pRomPage = pgmR3GetRomPage(pVM, GCPhys);
2223	AssertLogRelMsgReturn(pRomPage, ("GCPhys=%RGp %s\n", GCPhys, pRam->pszDesc), VERR_INTERNAL_ERROR);
2224
2225	SSMR3PutU8(pSSM, PGMPAGETYPE_ROM_SHADOW);
2226	SSMR3PutU8(pSSM, pRomPage->enmProt);
2227
2228	int rc = pgmR3SavePage(pVM, pSSM, pPage, GCPhys, pRam);
2229	if (RT_SUCCESS(rc))
2230	{
2231	PPGMPAGE pPagePassive = PGMROMPROT_IS_ROM(pRomPage->enmProt) ? &pRomPage->Shadow : &pRomPage->Virgin;
2232	rc = pgmR3SavePage(pVM, pSSM, pPagePassive, GCPhys, pRam);
2233	}
2234	return rc;
2235	}
2236
2237	/** PGM fields to save/load. */
2238	static SSMFIELD s_aPGMFields[] =
2239	{
2240	SSMFIELD_ENTRY( PGM, fMappingsFixed),
2241	SSMFIELD_ENTRY_GCPTR( PGM, GCPtrMappingFixed),
2242	SSMFIELD_ENTRY( PGM, cbMappingFixed),
2243	SSMFIELD_ENTRY( PGM, fA20Enabled),
2244	SSMFIELD_ENTRY_GCPHYS( PGM, GCPhysA20Mask),
2245	SSMFIELD_ENTRY( PGM, enmGuestMode),
2246	SSMFIELD_ENTRY_TERM()
2247	};
2248	#endif /* VBOX_WITH_NEW_PHYS_CODE */
2249
2250
2251	/**
2252	* Execute state save operation.
2253	*
2254	* @returns VBox status code.
2255	* @param pVM VM Handle.
2256	* @param pSSM SSM operation handle.
2257	*/
2258	static DECLCALLBACK(int) pgmR3Save(PVM pVM, PSSMHANDLE pSSM)
2259	{
2260	int rc;
2261	PPGM pPGM = &pVM->pgm.s;
2262
2263	/*
2264	* Lock PGM and set the no-more-writes indicator.
2265	*/
2266	#ifdef VBOX_WITH_NEW_PHYS_CODE
2267	pgmLock(pVM);
2268	#endif
2269	pVM->pgm.s.fNoMorePhysWrites = true;
2270
2271	/*
2272	* Save basic data (required / unaffected by relocation).
2273	*/
2274	#ifdef VBOX_WITH_NEW_PHYS_CODE
2275	SSMR3PutStruct(pSSM, pPGM, &s_aPGMFields[0]);
2276	#else
2277	SSMR3PutBool( pSSM, pPGM->fMappingsFixed);
2278	SSMR3PutGCPtr( pSSM, pPGM->GCPtrMappingFixed);
2279	SSMR3PutU32( pSSM, pPGM->cbMappingFixed);
2280	SSMR3PutUInt( pSSM, pPGM->cbRamSize);
2281	SSMR3PutGCPhys(pSSM, pPGM->GCPhysA20Mask);
2282	SSMR3PutUInt( pSSM, pPGM->fA20Enabled);
2283	SSMR3PutUInt( pSSM, pPGM->fSyncFlags);
2284	SSMR3PutUInt( pSSM, pPGM->enmGuestMode);
2285	SSMR3PutU32( pSSM, ~0); /* Separator. */
2286	#endif
2287
2288	/*
2289	* The guest mappings.
2290	*/
2291	uint32_t i = 0;
2292	for (PPGMMAPPING pMapping = pPGM->pMappingsR3; pMapping; pMapping = pMapping->pNextR3, i++)
2293	{
2294	SSMR3PutU32( pSSM, i);
2295	SSMR3PutStrZ( pSSM, pMapping->pszDesc); /* This is the best unique id we have... */
2296	SSMR3PutGCPtr( pSSM, pMapping->GCPtr);
2297	SSMR3PutGCUIntPtr(pSSM, pMapping->cPTs);
2298	}
2299	rc = SSMR3PutU32(pSSM, ~0); /* terminator. */
2300
2301	/*
2302	* Ram ranges and the memory they describe.
2303	*/
2304	i = 0;
2305	for (PPGMRAMRANGE pRam = pPGM->pRamRangesR3; pRam; pRam = pRam->pNextR3, i++)
2306	{
2307	/*
2308	* Save the ram range details.
2309	*/
2310	SSMR3PutU32(pSSM, i);
2311	SSMR3PutGCPhys(pSSM, pRam->GCPhys);
2312	SSMR3PutGCPhys(pSSM, pRam->GCPhysLast);
2313	SSMR3PutGCPhys(pSSM, pRam->cb);
2314	SSMR3PutU8(pSSM, !!pRam->pvR3); /* Boolean indicating memory or not. */
2315	#ifdef VBOX_WITH_NEW_PHYS_CODE
2316	SSMR3PutStrZ(pSSM, pRam->pszDesc); /* This is the best unique id we have... */
2317
2318	/*
2319	* Iterate the pages, only two special case.
2320	*/
2321	uint32_t const cPages = pRam->cb >> PAGE_SHIFT;
2322	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2323	{
2324	RTGCPHYS GCPhysPage = pRam->GCPhys + ((RTGCPHYS)iPage << PAGE_SHIFT);
2325	PPGMPAGE pPage = &pRam->aPages[iPage];
2326	uint8_t uType = PGM_PAGE_GET_TYPE(pPage);
2327
2328	if (uType == PGMPAGETYPE_ROM_SHADOW)
2329	rc = pgmR3SaveShadowedRomPage(pVM, pSSM, pPage, GCPhysPage, pRam);
2330	else if (uType == PGMPAGETYPE_MMIO2_ALIAS_MMIO)
2331	{
2332	/* MMIO2 alias -> MMIO; the device will just have to deal with this. */
2333	SSMR3PutU8(pSSM, PGMPAGETYPE_MMIO);
2334	rc = SSMR3PutU8(pSSM, 0 /* ZERO */);
2335	}
2336	else
2337	{
2338	SSMR3PutU8(pSSM, uType);
2339	rc = pgmR3SavePage(pVM, pSSM, pPage, GCPhysPage, pRam);
2340	}
2341	if (RT_FAILURE(rc))
2342	break;
2343	}
2344	if (RT_FAILURE(rc))
2345	break;
2346
2347	#else /* !VBOX_WITH_NEW_PHYS_CODE */
2348	/* Flags. */
2349	const unsigned cPages = pRam->cb >> PAGE_SHIFT;
2350	for (unsigned iPage = 0; iPage < cPages; iPage++)
2351	SSMR3PutU16(pSSM, (uint16_t)(pRam->aPages[iPage].HCPhys & ~X86_PTE_PAE_PG_MASK)); /** @todo PAGE FLAGS */
2352
2353	/* Any memory associated with the range. */
2354	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
2355	{
2356	for (unsigned iChunk = 0; iChunk < (pRam->cb >> PGM_DYNAMIC_CHUNK_SHIFT); iChunk++)
2357	{
2358	if (pRam->paChunkR3Ptrs[iChunk])
2359	{
2360	SSMR3PutU8(pSSM, 1); /* chunk present */
2361	SSMR3PutMem(pSSM, (void *)pRam->paChunkR3Ptrs[iChunk], PGM_DYNAMIC_CHUNK_SIZE);
2362	}
2363	else
2364	SSMR3PutU8(pSSM, 0); /* no chunk present */
2365	}
2366	}
2367	else if (pRam->pvR3)
2368	{
2369	rc = SSMR3PutMem(pSSM, pRam->pvR3, pRam->cb);
2370	if (RT_FAILURE(rc))
2371	{
2372	Log(("pgmR3Save: SSMR3PutMem(, %p, %#x) -> %Rrc\n", pRam->pvR3, pRam->cb, rc));
2373	return rc;
2374	}
2375	}
2376	#endif /* !VBOX_WITH_NEW_PHYS_CODE */
2377	}
2378
2379	#ifdef VBOX_WITH_NEW_PHYS_CODE
2380	pgmUnlock(pVM);
2381	#endif
2382	return SSMR3PutU32(pSSM, ~0); /* terminator. */
2383	}
2384
2385
2386	#ifdef VBOX_WITH_NEW_PHYS_CODE
2387
2388	/**
2389	* Load an ignored page.
2390	*
2391	* @returns VBox status code.
2392	* @param pSSM The saved state handle.
2393	*/
2394	static int pgmR3LoadPageToDevNull(PSSMHANDLE pSSM)
2395	{
2396	uint8_t abPage[PAGE_SIZE];
2397	return SSMR3GetMem(pSSM, &abPage[0], sizeof(abPage));
2398	}
2399
2400
2401	/**
2402	* Loads a page without any bits in the saved state, i.e. making sure it's
2403	* really zero.
2404	*
2405	* @returns VBox status code.
2406	* @param pVM The VM handle.
2407	* @param uType The page type or PGMPAGETYPE_INVALID (old saved
2408	* state).
2409	* @param pPage The guest page tracking structure.
2410	* @param GCPhys The page address.
2411	* @param pRam The ram range (logging).
2412	*/
2413	static int pgmR3LoadPageZero(PVM pVM, uint8_t uType, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2414	{
2415	if ( PGM_PAGE_GET_TYPE(pPage) != uType
2416	&& uType != PGMPAGETYPE_INVALID)
2417	return VERR_SSM_UNEXPECTED_DATA;
2418
2419	/* I think this should be sufficient. */
2420	if (!PGM_PAGE_IS_ZERO(pPage))
2421	return VERR_SSM_UNEXPECTED_DATA;
2422
2423	NOREF(pVM);
2424	NOREF(GCPhys);
2425	NOREF(pRam);
2426	return VINF_SUCCESS;
2427	}
2428
2429
2430	/**
2431	* Loads a page from the saved state.
2432	*
2433	* @returns VBox status code.
2434	* @param pVM The VM handle.
2435	* @param pSSM The SSM handle.
2436	* @param uType The page type or PGMPAGETYEP_INVALID (old saved
2437	* state).
2438	* @param pPage The guest page tracking structure.
2439	* @param GCPhys The page address.
2440	* @param pRam The ram range (logging).
2441	*/
2442	static int pgmR3LoadPageBits(PVM pVM, PSSMHANDLE pSSM, uint8_t uType, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2443	{
2444	int rc;
2445
2446	/*
2447	* Match up the type, dealing with MMIO2 aliases (dropped).
2448	*/
2449	AssertLogRelMsgReturn( PGM_PAGE_GET_TYPE(pPage) == uType
2450	\|\| uType == PGMPAGETYPE_INVALID,
2451	("pPage=%R[pgmpage] GCPhys=%#x %s\n", pPage, GCPhys, pRam->pszDesc),
2452	VERR_SSM_UNEXPECTED_DATA);
2453
2454	/*
2455	* Load the page.
2456	*/
2457	void *pvPage;
2458	rc = pgmPhysGCPhys2CCPtrInternal(pVM, pPage, GCPhys, &pvPage);
2459	if (RT_SUCCESS(rc))
2460	rc = SSMR3GetMem(pSSM, pvPage, PAGE_SIZE);
2461
2462	return rc;
2463	}
2464
2465
2466	/**
2467	* Loads a page (counter part to pgmR3SavePage).
2468	*
2469	* @returns VBox status code, fully bitched errors.
2470	* @param pVM The VM handle.
2471	* @param pSSM The SSM handle.
2472	* @param uType The page type.
2473	* @param pPage The page.
2474	* @param GCPhys The page address.
2475	* @param pRam The RAM range (for error messages).
2476	*/
2477	static int pgmR3LoadPage(PVM pVM, PSSMHANDLE pSSM, uint8_t uType, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2478	{
2479	uint8_t uState;
2480	int rc = SSMR3GetU8(pSSM, &uState);
2481	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] GCPhys=%#x %s rc=%Rrc\n", pPage, GCPhys, pRam->pszDesc, rc), rc);
2482	if (uState == 0 /* zero */)
2483	rc = pgmR3LoadPageZero(pVM, uType, pPage, GCPhys, pRam);
2484	else if (uState == 1)
2485	rc = pgmR3LoadPageBits(pVM, pSSM, uType, pPage, GCPhys, pRam);
2486	else
2487	rc = VERR_INTERNAL_ERROR;
2488	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] uState=%d uType=%d GCPhys=%RGp %s rc=%Rrc\n",
2489	pPage, uState, uType, GCPhys, pRam->pszDesc, rc),
2490	rc);
2491	return VINF_SUCCESS;
2492	}
2493
2494
2495	/**
2496	* Loads a shadowed ROM page.
2497	*
2498	* @returns VBox status code, errors are fully bitched.
2499	* @param pVM The VM handle.
2500	* @param pSSM The saved state handle.
2501	* @param pPage The page.
2502	* @param GCPhys The page address.
2503	* @param pRam The RAM range (for error messages).
2504	*/
2505	static int pgmR3LoadShadowedRomPage(PVM pVM, PSSMHANDLE pSSM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2506	{
2507	/*
2508	* Load and set the protection first, then load the two pages, the first
2509	* one is the active the other is the passive.
2510	*/
2511	PPGMROMPAGE pRomPage = pgmR3GetRomPage(pVM, GCPhys);
2512	AssertLogRelMsgReturn(pRomPage, ("GCPhys=%RGp %s\n", GCPhys, pRam->pszDesc), VERR_INTERNAL_ERROR);
2513
2514	uint8_t uProt;
2515	int rc = SSMR3GetU8(pSSM, &uProt);
2516	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] GCPhys=%#x %s\n", pPage, GCPhys, pRam->pszDesc), rc);
2517	PGMROMPROT enmProt = (PGMROMPROT)uProt;
2518	AssertLogRelMsgReturn( enmProt >= PGMROMPROT_INVALID
2519	&& enmProt < PGMROMPROT_END,
2520	("enmProt=%d pPage=%R[pgmpage] GCPhys=%#x %s\n", enmProt, pPage, GCPhys, pRam->pszDesc),
2521	VERR_SSM_UNEXPECTED_DATA);
2522
2523	if (pRomPage->enmProt != enmProt)
2524	{
2525	rc = PGMR3PhysRomProtect(pVM, GCPhys, PAGE_SIZE, enmProt);
2526	AssertLogRelRCReturn(rc, rc);
2527	AssertLogRelReturn(pRomPage->enmProt == enmProt, VERR_INTERNAL_ERROR);
2528	}
2529
2530	PPGMPAGE pPageActive = PGMROMPROT_IS_ROM(enmProt) ? &pRomPage->Virgin : &pRomPage->Shadow;
2531	PPGMPAGE pPagePassive = PGMROMPROT_IS_ROM(enmProt) ? &pRomPage->Shadow : &pRomPage->Virgin;
2532	uint8_t u8ActiveType = PGMROMPROT_IS_ROM(enmProt) ? PGMPAGETYPE_ROM : PGMPAGETYPE_ROM_SHADOW;
2533	uint8_t u8PassiveType= PGMROMPROT_IS_ROM(enmProt) ? PGMPAGETYPE_ROM_SHADOW : PGMPAGETYPE_ROM;
2534
2535	rc = pgmR3LoadPage(pVM, pSSM, u8ActiveType, pPage, GCPhys, pRam);
2536	if (RT_SUCCESS(rc))
2537	{
2538	pPageActive = pPage;
2539	rc = pgmR3LoadPage(pVM, pSSM, u8PassiveType, pPagePassive, GCPhys, pRam);
2540	}
2541	return rc;
2542	}
2543
2544	#endif /* VBOX_WITH_NEW_PHYS_CODE */
2545
2546	/**
2547	* Worker for pgmR3Load.
2548	*
2549	* @returns VBox status code.
2550	*
2551	* @param pVM The VM handle.
2552	* @param pSSM The SSM handle.
2553	* @param u32Version The saved state version.
2554	*/
2555	static int pgmR3LoadLocked(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
2556	{
2557	int rc;
2558	PPGM pPGM = &pVM->pgm.s;
2559	uint32_t u32Sep;
2560
2561	/*
2562	* Load basic data (required / unaffected by relocation).
2563	*/
2564	#ifdef VBOX_WITH_NEW_PHYS_CODE
2565	if (u32Version >= PGM_SAVED_STATE_VERSION)
2566	{
2567	rc = SSMR3GetStruct(pSSM, pPGM, &s_aPGMFields[0]);
2568	AssertLogRelRCReturn(rc, rc);
2569	}
2570	else
2571	#endif
2572	{
2573	SSMR3GetBool(pSSM, &pPGM->fMappingsFixed);
2574	SSMR3GetGCPtr(pSSM, &pPGM->GCPtrMappingFixed);
2575	SSMR3GetU32(pSSM, &pPGM->cbMappingFixed);
2576
2577	RTUINT cbRamSize;
2578	rc = SSMR3GetU32(pSSM, &cbRamSize);
2579	if (RT_FAILURE(rc))
2580	return rc;
2581	AssertLogRelMsgReturn(cbRamSize == pPGM->cbRamSize, ("%#x != %#x\n", cbRamSize, pPGM->cbRamSize),
2582	VERR_SSM_LOAD_MEMORY_SIZE_MISMATCH);
2583	SSMR3GetGCPhys(pSSM, &pPGM->GCPhysA20Mask);
2584
2585	uint32_t u32 = 0;
2586	SSMR3GetUInt(pSSM, &u32);
2587	pPGM->fA20Enabled = !!u32;
2588	SSMR3GetUInt(pSSM, &pPGM->fSyncFlags);
2589	RTUINT uGuestMode;
2590	SSMR3GetUInt(pSSM, &uGuestMode);
2591	pPGM->enmGuestMode = (PGMMODE)uGuestMode;
2592
2593	/* check separator. */
2594	SSMR3GetU32(pSSM, &u32Sep);
2595	if (RT_FAILURE(rc))
2596	return rc;
2597	if (u32Sep != (uint32_t)~0)
2598	{
2599	AssertMsgFailed(("u32Sep=%#x (first)\n", u32Sep));
2600	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2601	}
2602	}
2603
2604	/*
2605	* The guest mappings.
2606	*/
2607	uint32_t i = 0;
2608	for (;; i++)
2609	{
2610	/* Check the seqence number / separator. */
2611	rc = SSMR3GetU32(pSSM, &u32Sep);
2612	if (RT_FAILURE(rc))
2613	return rc;
2614	if (u32Sep == ~0U)
2615	break;
2616	if (u32Sep != i)
2617	{
2618	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2619	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2620	}
2621
2622	/* get the mapping details. */
2623	char szDesc[256];
2624	szDesc[0] = '\0';
2625	rc = SSMR3GetStrZ(pSSM, szDesc, sizeof(szDesc));
2626	if (RT_FAILURE(rc))
2627	return rc;
2628	RTGCPTR GCPtr;
2629	SSMR3GetGCPtr(pSSM, &GCPtr);
2630	RTGCPTR cPTs;
2631	rc = SSMR3GetGCUIntPtr(pSSM, &cPTs);
2632	if (RT_FAILURE(rc))
2633	return rc;
2634
2635	/* find matching range. */
2636	PPGMMAPPING pMapping;
2637	for (pMapping = pPGM->pMappingsR3; pMapping; pMapping = pMapping->pNextR3)
2638	if ( pMapping->cPTs == cPTs
2639	&& !strcmp(pMapping->pszDesc, szDesc))
2640	break;
2641	AssertLogRelMsgReturn(pMapping, ("Couldn't find mapping: cPTs=%#x szDesc=%s (GCPtr=%RGv)\n",
2642	cPTs, szDesc, GCPtr),
2643	VERR_SSM_LOAD_CONFIG_MISMATCH);
2644
2645	/* relocate it. */
2646	if (pMapping->GCPtr != GCPtr)
2647	{
2648	AssertMsg((GCPtr >> X86_PD_SHIFT << X86_PD_SHIFT) == GCPtr, ("GCPtr=%RGv\n", GCPtr));
2649	pgmR3MapRelocate(pVM, pMapping, pMapping->GCPtr, GCPtr);
2650	}
2651	else
2652	Log(("pgmR3Load: '%s' needed no relocation (%RGv)\n", szDesc, GCPtr));
2653	}
2654
2655	/*
2656	* Ram range flags and bits.
2657	*/
2658	i = 0;
2659	for (PPGMRAMRANGE pRam = pPGM->pRamRangesR3; pRam; pRam = pRam->pNextR3, i++)
2660	{
2661	/** @todo MMIO ranges may move (PCI reconfig), we currently assume they don't. */
2662
2663	/* Check the seqence number / separator. */
2664	rc = SSMR3GetU32(pSSM, &u32Sep);
2665	if (RT_FAILURE(rc))
2666	return rc;
2667	if (u32Sep == ~0U)
2668	break;
2669	if (u32Sep != i)
2670	{
2671	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2672	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2673	}
2674
2675	/* Get the range details. */
2676	RTGCPHYS GCPhys;
2677	SSMR3GetGCPhys(pSSM, &GCPhys);
2678	RTGCPHYS GCPhysLast;
2679	SSMR3GetGCPhys(pSSM, &GCPhysLast);
2680	RTGCPHYS cb;
2681	SSMR3GetGCPhys(pSSM, &cb);
2682	uint8_t fHaveBits;
2683	rc = SSMR3GetU8(pSSM, &fHaveBits);
2684	if (RT_FAILURE(rc))
2685	return rc;
2686	if (fHaveBits & ~1)
2687	{
2688	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2689	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2690	}
2691	char szDesc[256];
2692	szDesc[0] = '\0';
2693	#ifdef VBOX_WITH_NEW_PHYS_CODE
2694	if (u32Version >= PGM_SAVED_STATE_VERSION)
2695	{
2696	rc = SSMR3GetStrZ(pSSM, szDesc, sizeof(szDesc));
2697	if (RT_FAILURE(rc))
2698	return rc;
2699	}
2700	#endif
2701
2702	/*
2703	* Match it up with the current range.
2704	*
2705	* Note there is a hack for dealing with the high BIOS mapping
2706	* in the old saved state format, this means we might not have
2707	* a 1:1 match on success.
2708	*/
2709	if ( ( GCPhys != pRam->GCPhys
2710	\|\| GCPhysLast != pRam->GCPhysLast
2711	\|\| cb != pRam->cb
2712	#ifdef VBOX_WITH_NEW_PHYS_CODE
2713	\|\| (szDesc[0] && strcmp(szDesc, pRam->pszDesc))
2714	#else
2715	\|\| fHaveBits != !!pRam->pvR3
2716	#endif
2717	)
2718	#ifdef VBOX_WITH_NEW_PHYS_CODE
2719	/* Hack for PDMDevHlpPhysReserve(pDevIns, 0xfff80000, 0x80000, "High ROM Region"); */
2720	&& ( u32Version != PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE
2721	\|\| GCPhys != UINT32_C(0xfff80000)
2722	\|\| GCPhysLast != UINT32_C(0xffffffff)
2723	\|\| pRam->GCPhysLast != GCPhysLast
2724	\|\| pRam->GCPhys < GCPhys
2725	\|\| !fHaveBits)
2726	#endif
2727	)
2728	{
2729	LogRel(("Ram range: %RGp-%RGp %RGp bytes %s %s\n"
2730	"State : %RGp-%RGp %RGp bytes %s %s\n",
2731	pRam->GCPhys, pRam->GCPhysLast, pRam->cb, pRam->pvR3 ? "bits" : "nobits", pRam->pszDesc,
2732	GCPhys, GCPhysLast, cb, fHaveBits ? "bits" : "nobits", szDesc));
2733	/*
2734	* If we're loading a state for debugging purpose, don't make a fuss if
2735	* the MMIO and ROM stuff isn't 100% right, just skip the mismatches.
2736	*/
2737	if ( SSMR3HandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT
2738	\|\| GCPhys < 8 * _1M)
2739	AssertFailedReturn(VERR_SSM_LOAD_CONFIG_MISMATCH);
2740
2741	#ifdef VBOX_WITH_NEW_PHYS_CODE
2742	if (u32Version > PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE)
2743	AssertMsgFailed(("debug skipping not implemented, sorry\n"));
2744	else
2745	#else
2746	{
2747	RTGCPHYS cPages = ((GCPhysLast - GCPhys) + 1) >> PAGE_SHIFT;
2748	while (cPages-- > 0)
2749	{
2750	uint16_t u16Ignore;
2751	SSMR3GetU16(pSSM, &u16Ignore);
2752	}
2753	}
2754	#endif
2755	continue;
2756	}
2757
2758	uint32_t cPages = (GCPhysLast - GCPhys + 1) >> PAGE_SHIFT;
2759
2760	#ifdef VBOX_WITH_NEW_PHYS_CODE
2761	if (u32Version >= PGM_SAVED_STATE_VERSION)
2762	{
2763	/*
2764	* Load the pages one by one.
2765	*/
2766	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2767	{
2768	RTGCPHYS const GCPhysPage = ((RTGCPHYS)iPage << PAGE_SHIFT) + pRam->GCPhys;
2769	PPGMPAGE pPage = &pRam->aPages[iPage];
2770	uint8_t uType;
2771	rc = SSMR3GetU8(pSSM, &uType);
2772	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] iPage=%#x GCPhysPage=%#x %s\n", pPage, iPage, GCPhysPage, pRam->pszDesc), rc);
2773	if (uType == PGMPAGETYPE_ROM_SHADOW)
2774	rc = pgmR3LoadShadowedRomPage(pVM, pSSM, pPage, GCPhysPage, pRam);
2775	else
2776	rc = pgmR3LoadPage(pVM, pSSM, uType, pPage, GCPhysPage, pRam);
2777	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhysPage=%#x %s\n", rc, iPage, GCPhysPage, pRam->pszDesc), rc);
2778	}
2779	}
2780	else
2781	{
2782	/*
2783	* Old format.
2784	*/
2785	AssertLogRelReturn(!pVM->pgm.s.fRamPreAlloc, VERR_NOT_SUPPORTED); /* can't be detected. */
2786
2787	/* Of the page flags, pick up MMIO2 and ROM/RESERVED for the !fHaveBits case.
2788	The rest is generally irrelevant and wrong since the stuff have to match registrations. */
2789	uint32_t fFlags = 0;
2790	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2791	{
2792	uint16_t u16Flags;
2793	rc = SSMR3GetU16(pSSM, &u16Flags);
2794	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhys=%#x %s\n", rc, iPage, pRam->GCPhys, pRam->pszDesc), rc);
2795	fFlags \|= u16Flags;
2796	}
2797
2798	/* Load the bits */
2799	if ( !fHaveBits
2800	&& GCPhysLast < UINT32_C(0xe0000000))
2801	{
2802	/*
2803	* Dynamic chunks.
2804	*/
2805	const uint32_t cPagesInChunk = (110241024) >> PAGE_SHIFT;
2806	AssertLogRelMsgReturn(cPages % cPagesInChunk == 0,
2807	("cPages=%#x cPagesInChunk=%#x\n", cPages, cPagesInChunk, pRam->GCPhys, pRam->pszDesc),
2808	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2809
2810	for (uint32_t iPage = 0; iPage < cPages; /* incremented by inner loop */ )
2811	{
2812	uint8_t fPresent;
2813	rc = SSMR3GetU8(pSSM, &fPresent);
2814	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhys=%#x %s\n", rc, iPage, pRam->GCPhys, pRam->pszDesc), rc);
2815	AssertLogRelMsgReturn(fPresent == (uint8_t)true \|\| fPresent == (uint8_t)false,
2816	("fPresent=%#x iPage=%#x GCPhys=%#x %s\n", fPresent, iPage, pRam->GCPhys, pRam->pszDesc),
2817	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2818
2819	for (uint32_t iChunkPage = 0; iChunkPage < cPagesInChunk; iChunkPage++, iPage++)
2820	{
2821	RTGCPHYS const GCPhysPage = ((RTGCPHYS)iPage << PAGE_SHIFT) + pRam->GCPhys;
2822	PPGMPAGE pPage = &pRam->aPages[iPage];
2823	if (fPresent)
2824	{
2825	if (PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_MMIO)
2826	rc = pgmR3LoadPageToDevNull(pSSM);
2827	else
2828	rc = pgmR3LoadPageBits(pVM, pSSM, PGMPAGETYPE_INVALID, pPage, GCPhysPage, pRam);
2829	}
2830	else
2831	rc = pgmR3LoadPageZero(pVM, PGMPAGETYPE_INVALID, pPage, GCPhysPage, pRam);
2832	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhysPage=%#x %s\n", rc, iPage, GCPhysPage, pRam->pszDesc), rc);
2833	}
2834	}
2835	}
2836	else if (pRam->pvR3)
2837	{
2838	/*
2839	* MMIO2.
2840	*/
2841	AssertLogRelMsgReturn((fFlags & 0x0f) == RT_BIT(3) /MM_RAM_FLAGS_MMIO2/,
2842	("fFlags=%#x GCPhys=%#x %s\n", fFlags, pRam->GCPhys, pRam->pszDesc),
2843	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2844	AssertLogRelMsgReturn(pRam->pvR3,
2845	("GCPhys=%#x %s\n", pRam->GCPhys, pRam->pszDesc),
2846	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2847
2848	rc = SSMR3GetMem(pSSM, pRam->pvR3, pRam->cb);
2849	AssertLogRelMsgRCReturn(rc, ("GCPhys=%#x %s\n", pRam->GCPhys, pRam->pszDesc), rc);
2850	}
2851	else if (GCPhysLast < UINT32_C(0xfff80000))
2852	{
2853	/*
2854	* PCI MMIO, no pages saved.
2855	*/
2856	}
2857	else
2858	{
2859	/*
2860	* Load the 0xfff80000..0xffffffff BIOS range.
2861	* It starts with X reserved pages that we have to skip over since
2862	* the RAMRANGE create by the new code won't include those.
2863	*/
2864	AssertLogRelMsgReturn( !(fFlags & RT_BIT(3) /MM_RAM_FLAGS_MMIO2/)
2865	&& (fFlags & RT_BIT(0) /MM_RAM_FLAGS_RESERVED/),
2866	("fFlags=%#x GCPhys=%#x %s\n", fFlags, pRam->GCPhys, pRam->pszDesc),
2867	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2868	AssertLogRelMsgReturn(GCPhys == UINT32_C(0xfff80000),
2869	("GCPhys=%RGp pRamRange{GCPhys=%#x %s}\n", GCPhys, pRam->GCPhys, pRam->pszDesc),
2870	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2871
2872	/* Skip wasted reserved pages before the ROM. */
2873	while (GCPhys < pRam->GCPhys)
2874	{
2875	rc = pgmR3LoadPageToDevNull(pSSM);
2876	GCPhys += PAGE_SIZE;
2877	}
2878
2879	/* Load the bios pages. */
2880	cPages = pRam->cb >> PAGE_SHIFT;
2881	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2882	{
2883	RTGCPHYS const GCPhysPage = ((RTGCPHYS)iPage << PAGE_SHIFT) + pRam->GCPhys;
2884	PPGMPAGE pPage = &pRam->aPages[iPage];
2885
2886	AssertLogRelMsgReturn(PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_ROM,
2887	("GCPhys=%RGp pPage=%R[pgmpage]\n", GCPhys, GCPhys),
2888	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2889	rc = pgmR3LoadPageBits(pVM, pSSM, PGMPAGETYPE_ROM, pPage, GCPhysPage, pRam);
2890	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhys=%#x %s\n", rc, iPage, pRam->GCPhys, pRam->pszDesc), rc);
2891	}
2892	}
2893	}
2894
2895	#else /* !VBOX_WITH_NEW_PHYS_CODE */
2896	/* Flags. */
2897	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2898	{
2899	uint16_t u16 = 0;
2900	SSMR3GetU16(pSSM, &u16);
2901	u16 &= PAGE_OFFSET_MASK & ~( RT_BIT(4) \| RT_BIT(5) \| RT_BIT(6)
2902	\| RT_BIT(7) \| RT_BIT(8) \| RT_BIT(9) \| RT_BIT(10) );
2903	// &= MM_RAM_FLAGS_DYNAMIC_ALLOC \| MM_RAM_FLAGS_RESERVED \| MM_RAM_FLAGS_ROM \| MM_RAM_FLAGS_MMIO \| MM_RAM_FLAGS_MMIO2
2904	pRam->aPages[iPage].HCPhys = PGM_PAGE_GET_HCPHYS(&pRam->aPages[iPage]) \| (RTHCPHYS)u16; /** @todo PAGE FLAGS */
2905	}
2906
2907	/* any memory associated with the range. */
2908	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
2909	{
2910	for (unsigned iChunk = 0; iChunk < (pRam->cb >> PGM_DYNAMIC_CHUNK_SHIFT); iChunk++)
2911	{
2912	uint8_t fValidChunk;
2913
2914	rc = SSMR3GetU8(pSSM, &fValidChunk);
2915	if (RT_FAILURE(rc))
2916	return rc;
2917	if (fValidChunk > 1)
2918	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2919
2920	if (fValidChunk)
2921	{
2922	if (!pRam->paChunkR3Ptrs[iChunk])
2923	{
2924	rc = pgmr3PhysGrowRange(pVM, pRam->GCPhys + iChunk * PGM_DYNAMIC_CHUNK_SIZE);
2925	if (RT_FAILURE(rc))
2926	return rc;
2927	}
2928	Assert(pRam->paChunkR3Ptrs[iChunk]);
2929
2930	SSMR3GetMem(pSSM, (void *)pRam->paChunkR3Ptrs[iChunk], PGM_DYNAMIC_CHUNK_SIZE);
2931	}
2932	/* else nothing to do */
2933	}
2934	}
2935	else if (pRam->pvR3)
2936	{
2937	rc = SSMR3GetMem(pSSM, pRam->pvR3, pRam->cb);
2938	if (RT_FAILURE(rc))
2939	{
2940	Log(("pgmR3Save: SSMR3GetMem(, %p, %#x) -> %Rrc\n", pRam->pvR3, pRam->cb, rc));
2941	return rc;
2942	}
2943	}
2944	#endif /* !VBOX_WITH_NEW_PHYS_CODE */
2945	}
2946
2947	return rc;
2948	}
2949
2950
2951	/**
2952	* Execute state load operation.
2953	*
2954	* @returns VBox status code.
2955	* @param pVM VM Handle.
2956	* @param pSSM SSM operation handle.
2957	* @param u32Version Data layout version.
2958	*/
2959	static DECLCALLBACK(int) pgmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
2960	{
2961	int rc;
2962	PPGM pPGM = &pVM->pgm.s;
2963
2964	/*
2965	* Validate version.
2966	*/
2967	if ( u32Version != PGM_SAVED_STATE_VERSION
2968	#ifdef VBOX_WITH_NEW_PHYS_CODE
2969	&& u32Version != PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE
2970	#endif
2971	)
2972	{
2973	AssertMsgFailed(("pgmR3Load: Invalid version u32Version=%d (current %d)!\n", u32Version, PGM_SAVED_STATE_VERSION));
2974	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
2975	}
2976
2977	/*
2978	* Call the reset function to make sure all the memory is cleared.
2979	*/
2980	PGMR3Reset(pVM);
2981
2982	/*
2983	* Do the loading while owning the lock because a bunch of the functions
2984	* we're using requires this.
2985	*/
2986	pgmLock(pVM);
2987	rc = pgmR3LoadLocked(pVM, pSSM, u32Version);
2988	pgmUnlock(pVM);
2989	if (RT_SUCCESS(rc))
2990	{
2991	/*
2992	* We require a full resync now.
2993	*/
2994	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3_NON_GLOBAL);
2995	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
2996	pPGM->fSyncFlags \|= PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL;
2997	pPGM->fPhysCacheFlushPending = true;
2998	pgmR3HandlerPhysicalUpdateAll(pVM);
2999
3000	/*
3001	* Change the paging mode.
3002	*/
3003	rc = PGMR3ChangeMode(pVM, pPGM->enmGuestMode);
3004
3005	/* Restore pVM->pgm.s.GCPhysCR3. */
3006	Assert(pVM->pgm.s.GCPhysCR3 == NIL_RTGCPHYS);
3007	RTGCPHYS GCPhysCR3 = CPUMGetGuestCR3(pVM);
3008	if ( pVM->pgm.s.enmGuestMode == PGMMODE_PAE
3009	\|\| pVM->pgm.s.enmGuestMode == PGMMODE_PAE_NX
3010	\|\| pVM->pgm.s.enmGuestMode == PGMMODE_AMD64
3011	\|\| pVM->pgm.s.enmGuestMode == PGMMODE_AMD64_NX)
3012	GCPhysCR3 = (GCPhysCR3 & X86_CR3_PAE_PAGE_MASK);
3013	else
3014	GCPhysCR3 = (GCPhysCR3 & X86_CR3_PAGE_MASK);
3015	pVM->pgm.s.GCPhysCR3 = GCPhysCR3;
3016	}
3017
3018	return rc;
3019	}
3020
3021
3022	/**
3023	* Show paging mode.
3024	*
3025	* @param pVM VM Handle.
3026	* @param pHlp The info helpers.
3027	* @param pszArgs "all" (default), "guest", "shadow" or "host".
3028	*/
3029	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
3030	{
3031	/* digest argument. */
3032	bool fGuest, fShadow, fHost;
3033	if (pszArgs)
3034	pszArgs = RTStrStripL(pszArgs);
3035	if (!pszArgs \|\| !*pszArgs \|\| strstr(pszArgs, "all"))
3036	fShadow = fHost = fGuest = true;
3037	else
3038	{
3039	fShadow = fHost = fGuest = false;
3040	if (strstr(pszArgs, "guest"))
3041	fGuest = true;
3042	if (strstr(pszArgs, "shadow"))
3043	fShadow = true;
3044	if (strstr(pszArgs, "host"))
3045	fHost = true;
3046	}
3047
3048	/* print info. */
3049	if (fGuest)
3050	pHlp->pfnPrintf(pHlp, "Guest paging mode: %s, changed %RU64 times, A20 %s\n",
3051	PGMGetModeName(pVM->pgm.s.enmGuestMode), pVM->pgm.s.cGuestModeChanges.c,
3052	pVM->pgm.s.fA20Enabled ? "enabled" : "disabled");
3053	if (fShadow)
3054	pHlp->pfnPrintf(pHlp, "Shadow paging mode: %s\n", PGMGetModeName(pVM->pgm.s.enmShadowMode));
3055	if (fHost)
3056	{
3057	const char *psz;
3058	switch (pVM->pgm.s.enmHostMode)
3059	{
3060	case SUPPAGINGMODE_INVALID: psz = "invalid"; break;
3061	case SUPPAGINGMODE_32_BIT: psz = "32-bit"; break;
3062	case SUPPAGINGMODE_32_BIT_GLOBAL: psz = "32-bit+G"; break;
3063	case SUPPAGINGMODE_PAE: psz = "PAE"; break;
3064	case SUPPAGINGMODE_PAE_GLOBAL: psz = "PAE+G"; break;
3065	case SUPPAGINGMODE_PAE_NX: psz = "PAE+NX"; break;
3066	case SUPPAGINGMODE_PAE_GLOBAL_NX: psz = "PAE+G+NX"; break;
3067	case SUPPAGINGMODE_AMD64: psz = "AMD64"; break;
3068	case SUPPAGINGMODE_AMD64_GLOBAL: psz = "AMD64+G"; break;
3069	case SUPPAGINGMODE_AMD64_NX: psz = "AMD64+NX"; break;
3070	case SUPPAGINGMODE_AMD64_GLOBAL_NX: psz = "AMD64+G+NX"; break;
3071	default: psz = "unknown"; break;
3072	}
3073	pHlp->pfnPrintf(pHlp, "Host paging mode: %s\n", psz);
3074	}
3075	}
3076
3077
3078	/**
3079	* Dump registered MMIO ranges to the log.
3080	*
3081	* @param pVM VM Handle.
3082	* @param pHlp The info helpers.
3083	* @param pszArgs Arguments, ignored.
3084	*/
3085	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
3086	{
3087	NOREF(pszArgs);
3088	pHlp->pfnPrintf(pHlp,
3089	"RAM ranges (pVM=%p)\n"
3090	"%.s %.s\n",
3091	pVM,
3092	sizeof(RTGCPHYS) * 4 + 1, "GC Phys Range ",
3093	sizeof(RTHCPTR) * 2, "pvHC ");
3094
3095	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
3096	pHlp->pfnPrintf(pHlp,
3097	"%RGp-%RGp %RHv %s\n",
3098	pCur->GCPhys,
3099	pCur->GCPhysLast,
3100	pCur->pvR3,
3101	pCur->pszDesc);
3102	}
3103
3104	/**
3105	* Dump the page directory to the log.
3106	*
3107	* @param pVM VM Handle.
3108	* @param pHlp The info helpers.
3109	* @param pszArgs Arguments, ignored.
3110	*/
3111	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
3112	{
3113	/** @todo fix this! Convert the PGMR3DumpHierarchyHC functions to do guest stuff. */
3114	/* Big pages supported? */
3115	const bool fPSE = !!(CPUMGetGuestCR4(pVM) & X86_CR4_PSE);
3116
3117	/* Global pages supported? */
3118	const bool fPGE = !!(CPUMGetGuestCR4(pVM) & X86_CR4_PGE);
3119
3120	NOREF(pszArgs);
3121
3122	/*
3123	* Get page directory addresses.
3124	*/
3125	PX86PD pPDSrc = pgmGstGet32bitPDPtr(&pVM->pgm.s);
3126	Assert(pPDSrc);
3127	Assert(PGMPhysGCPhys2R3PtrAssert(pVM, (RTGCPHYS)(CPUMGetGuestCR3(pVM) & X86_CR3_PAGE_MASK), sizeof(*pPDSrc)) == pPDSrc);
3128
3129	/*
3130	* Iterate the page directory.
3131	*/
3132	for (unsigned iPD = 0; iPD < RT_ELEMENTS(pPDSrc->a); iPD++)
3133	{
3134	X86PDE PdeSrc = pPDSrc->a[iPD];
3135	if (PdeSrc.n.u1Present)
3136	{
3137	if (PdeSrc.b.u1Size && fPSE)
3138	pHlp->pfnPrintf(pHlp,
3139	"%04X - %RGp P=%d U=%d RW=%d G=%d - BIG\n",
3140	iPD,
3141	pgmGstGet4MBPhysPage(&pVM->pgm.s, PdeSrc),
3142	PdeSrc.b.u1Present, PdeSrc.b.u1User, PdeSrc.b.u1Write, PdeSrc.b.u1Global && fPGE);
3143	else
3144	pHlp->pfnPrintf(pHlp,
3145	"%04X - %RGp P=%d U=%d RW=%d [G=%d]\n",
3146	iPD,
3147	(RTGCPHYS)(PdeSrc.u & X86_PDE_PG_MASK),
3148	PdeSrc.n.u1Present, PdeSrc.n.u1User, PdeSrc.n.u1Write, PdeSrc.b.u1Global && fPGE);
3149	}
3150	}
3151	}
3152
3153
3154	/**
3155	* Serivce a VMMCALLHOST_PGM_LOCK call.
3156	*
3157	* @returns VBox status code.
3158	* @param pVM The VM handle.
3159	*/
3160	VMMR3DECL(int) PGMR3LockCall(PVM pVM)
3161	{
3162	int rc = PDMR3CritSectEnterEx(&pVM->pgm.s.CritSect, true /* fHostCall */);
3163	AssertRC(rc);
3164	return rc;
3165	}
3166
3167
3168	/**
3169	* Converts a PGMMODE value to a PGM_TYPE_* \#define.
3170	*
3171	* @returns PGM_TYPE_*.
3172	* @param pgmMode The mode value to convert.
3173	*/
3174	DECLINLINE(unsigned) pgmModeToType(PGMMODE pgmMode)
3175	{
3176	switch (pgmMode)
3177	{
3178	case PGMMODE_REAL: return PGM_TYPE_REAL;
3179	case PGMMODE_PROTECTED: return PGM_TYPE_PROT;
3180	case PGMMODE_32_BIT: return PGM_TYPE_32BIT;
3181	case PGMMODE_PAE:
3182	case PGMMODE_PAE_NX: return PGM_TYPE_PAE;
3183	case PGMMODE_AMD64:
3184	case PGMMODE_AMD64_NX: return PGM_TYPE_AMD64;
3185	case PGMMODE_NESTED: return PGM_TYPE_NESTED;
3186	case PGMMODE_EPT: return PGM_TYPE_EPT;
3187	default:
3188	AssertFatalMsgFailed(("pgmMode=%d\n", pgmMode));
3189	}
3190	}
3191
3192
3193	/**
3194	* Gets the index into the paging mode data array of a SHW+GST mode.
3195	*
3196	* @returns PGM::paPagingData index.
3197	* @param uShwType The shadow paging mode type.
3198	* @param uGstType The guest paging mode type.
3199	*/
3200	DECLINLINE(unsigned) pgmModeDataIndex(unsigned uShwType, unsigned uGstType)
3201	{
3202	Assert(uShwType >= PGM_TYPE_32BIT && uShwType <= PGM_TYPE_MAX);
3203	Assert(uGstType >= PGM_TYPE_REAL && uGstType <= PGM_TYPE_AMD64);
3204	return (uShwType - PGM_TYPE_32BIT) * (PGM_TYPE_AMD64 - PGM_TYPE_REAL + 1)
3205	+ (uGstType - PGM_TYPE_REAL);
3206	}
3207
3208
3209	/**
3210	* Gets the index into the paging mode data array of a SHW+GST mode.
3211	*
3212	* @returns PGM::paPagingData index.
3213	* @param enmShw The shadow paging mode.
3214	* @param enmGst The guest paging mode.
3215	*/
3216	DECLINLINE(unsigned) pgmModeDataIndexByMode(PGMMODE enmShw, PGMMODE enmGst)
3217	{
3218	Assert(enmShw >= PGMMODE_32_BIT && enmShw <= PGMMODE_MAX);
3219	Assert(enmGst > PGMMODE_INVALID && enmGst < PGMMODE_MAX);
3220	return pgmModeDataIndex(pgmModeToType(enmShw), pgmModeToType(enmGst));
3221	}
3222
3223
3224	/**
3225	* Calculates the max data index.
3226	* @returns The number of entries in the paging data array.
3227	*/
3228	DECLINLINE(unsigned) pgmModeDataMaxIndex(void)
3229	{
3230	return pgmModeDataIndex(PGM_TYPE_MAX, PGM_TYPE_AMD64) + 1;
3231	}
3232
3233
3234	/**
3235	* Initializes the paging mode data kept in PGM::paModeData.
3236	*
3237	* @param pVM The VM handle.
3238	* @param fResolveGCAndR0 Indicate whether or not GC and Ring-0 symbols can be resolved now.
3239	* This is used early in the init process to avoid trouble with PDM
3240	* not being initialized yet.
3241	*/
3242	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0)
3243	{
3244	PPGMMODEDATA pModeData;
3245	int rc;
3246
3247	/*
3248	* Allocate the array on the first call.
3249	*/
3250	if (!pVM->pgm.s.paModeData)
3251	{
3252	pVM->pgm.s.paModeData = (PPGMMODEDATA)MMR3HeapAllocZ(pVM, MM_TAG_PGM, sizeof(PGMMODEDATA) * pgmModeDataMaxIndex());
3253	AssertReturn(pVM->pgm.s.paModeData, VERR_NO_MEMORY);
3254	}
3255
3256	/*
3257	* Initialize the array entries.
3258	*/
3259	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_REAL)];
3260	pModeData->uShwType = PGM_TYPE_32BIT;
3261	pModeData->uGstType = PGM_TYPE_REAL;
3262	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3263	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3264	rc = PGM_BTH_NAME_32BIT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3265
3266	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGMMODE_PROTECTED)];
3267	pModeData->uShwType = PGM_TYPE_32BIT;
3268	pModeData->uGstType = PGM_TYPE_PROT;
3269	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3270	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3271	rc = PGM_BTH_NAME_32BIT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3272
3273	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_32BIT)];
3274	pModeData->uShwType = PGM_TYPE_32BIT;
3275	pModeData->uGstType = PGM_TYPE_32BIT;
3276	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3277	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3278	rc = PGM_BTH_NAME_32BIT_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3279
3280	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_REAL)];
3281	pModeData->uShwType = PGM_TYPE_PAE;
3282	pModeData->uGstType = PGM_TYPE_REAL;
3283	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3284	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3285	rc = PGM_BTH_NAME_PAE_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3286
3287	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PROT)];
3288	pModeData->uShwType = PGM_TYPE_PAE;
3289	pModeData->uGstType = PGM_TYPE_PROT;
3290	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3291	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3292	rc = PGM_BTH_NAME_PAE_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3293
3294	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_32BIT)];
3295	pModeData->uShwType = PGM_TYPE_PAE;
3296	pModeData->uGstType = PGM_TYPE_32BIT;
3297	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3298	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3299	rc = PGM_BTH_NAME_PAE_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3300
3301	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PAE)];
3302	pModeData->uShwType = PGM_TYPE_PAE;
3303	pModeData->uGstType = PGM_TYPE_PAE;
3304	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3305	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3306	rc = PGM_BTH_NAME_PAE_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3307
3308	#ifdef VBOX_WITH_64_BITS_GUESTS
3309	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_AMD64)];
3310	pModeData->uShwType = PGM_TYPE_AMD64;
3311	pModeData->uGstType = PGM_TYPE_AMD64;
3312	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3313	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3314	rc = PGM_BTH_NAME_AMD64_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3315	#endif
3316
3317	/* The nested paging mode. */
3318	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_REAL)];
3319	pModeData->uShwType = PGM_TYPE_NESTED;
3320	pModeData->uGstType = PGM_TYPE_REAL;
3321	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3322	rc = PGM_BTH_NAME_NESTED_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3323
3324	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGMMODE_PROTECTED)];
3325	pModeData->uShwType = PGM_TYPE_NESTED;
3326	pModeData->uGstType = PGM_TYPE_PROT;
3327	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3328	rc = PGM_BTH_NAME_NESTED_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3329
3330	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_32BIT)];
3331	pModeData->uShwType = PGM_TYPE_NESTED;
3332	pModeData->uGstType = PGM_TYPE_32BIT;
3333	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3334	rc = PGM_BTH_NAME_NESTED_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3335
3336	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_PAE)];
3337	pModeData->uShwType = PGM_TYPE_NESTED;
3338	pModeData->uGstType = PGM_TYPE_PAE;
3339	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3340	rc = PGM_BTH_NAME_NESTED_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3341
3342	#ifdef VBOX_WITH_64_BITS_GUESTS
3343	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
3344	pModeData->uShwType = PGM_TYPE_NESTED;
3345	pModeData->uGstType = PGM_TYPE_AMD64;
3346	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3347	rc = PGM_BTH_NAME_NESTED_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3348	#endif
3349
3350	/* The shadow part of the nested callback mode depends on the host paging mode (AMD-V only). */
3351	switch (pVM->pgm.s.enmHostMode)
3352	{
3353	#if HC_ARCH_BITS == 32
3354	case SUPPAGINGMODE_32_BIT:
3355	case SUPPAGINGMODE_32_BIT_GLOBAL:
3356	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
3357	{
3358	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
3359	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3360	}
3361	# ifdef VBOX_WITH_64_BITS_GUESTS
3362	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
3363	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3364	# endif
3365	break;
3366
3367	case SUPPAGINGMODE_PAE:
3368	case SUPPAGINGMODE_PAE_NX:
3369	case SUPPAGINGMODE_PAE_GLOBAL:
3370	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3371	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
3372	{
3373	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
3374	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3375	}
3376	# ifdef VBOX_WITH_64_BITS_GUESTS
3377	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
3378	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3379	# endif
3380	break;
3381	#endif /* HC_ARCH_BITS == 32 */
3382
3383	#if HC_ARCH_BITS == 64 \|\| defined(RT_OS_DARWIN)
3384	case SUPPAGINGMODE_AMD64:
3385	case SUPPAGINGMODE_AMD64_GLOBAL:
3386	case SUPPAGINGMODE_AMD64_NX:
3387	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3388	# ifdef VBOX_WITH_64_BITS_GUESTS
3389	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_AMD64; i++)
3390	# else
3391	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
3392	# endif
3393	{
3394	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
3395	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3396	}
3397	break;
3398	#endif /* HC_ARCH_BITS == 64 \|\| RT_OS_DARWIN */
3399
3400	default:
3401	AssertFailed();
3402	break;
3403	}
3404
3405	/* Extended paging (EPT) / Intel VT-x */
3406	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_REAL)];
3407	pModeData->uShwType = PGM_TYPE_EPT;
3408	pModeData->uGstType = PGM_TYPE_REAL;
3409	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3410	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3411	rc = PGM_BTH_NAME_EPT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3412
3413	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_PROT)];
3414	pModeData->uShwType = PGM_TYPE_EPT;
3415	pModeData->uGstType = PGM_TYPE_PROT;
3416	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3417	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3418	rc = PGM_BTH_NAME_EPT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3419
3420	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_32BIT)];
3421	pModeData->uShwType = PGM_TYPE_EPT;
3422	pModeData->uGstType = PGM_TYPE_32BIT;
3423	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3424	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3425	rc = PGM_BTH_NAME_EPT_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3426
3427	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_PAE)];
3428	pModeData->uShwType = PGM_TYPE_EPT;
3429	pModeData->uGstType = PGM_TYPE_PAE;
3430	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3431	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3432	rc = PGM_BTH_NAME_EPT_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3433
3434	#ifdef VBOX_WITH_64_BITS_GUESTS
3435	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_AMD64)];
3436	pModeData->uShwType = PGM_TYPE_EPT;
3437	pModeData->uGstType = PGM_TYPE_AMD64;
3438	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3439	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3440	rc = PGM_BTH_NAME_EPT_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3441	#endif
3442	return VINF_SUCCESS;
3443	}
3444
3445
3446	/**
3447	* Switch to different (or relocated in the relocate case) mode data.
3448	*
3449	* @param pVM The VM handle.
3450	* @param enmShw The the shadow paging mode.
3451	* @param enmGst The the guest paging mode.
3452	*/
3453	static void pgmR3ModeDataSwitch(PVM pVM, PGMMODE enmShw, PGMMODE enmGst)
3454	{
3455	PPGMMODEDATA pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndexByMode(enmShw, enmGst)];
3456
3457	Assert(pModeData->uGstType == pgmModeToType(enmGst));
3458	Assert(pModeData->uShwType == pgmModeToType(enmShw));
3459
3460	/* shadow */
3461	pVM->pgm.s.pfnR3ShwRelocate = pModeData->pfnR3ShwRelocate;
3462	pVM->pgm.s.pfnR3ShwExit = pModeData->pfnR3ShwExit;
3463	pVM->pgm.s.pfnR3ShwGetPage = pModeData->pfnR3ShwGetPage;
3464	Assert(pVM->pgm.s.pfnR3ShwGetPage);
3465	pVM->pgm.s.pfnR3ShwModifyPage = pModeData->pfnR3ShwModifyPage;
3466
3467	pVM->pgm.s.pfnRCShwGetPage = pModeData->pfnRCShwGetPage;
3468	pVM->pgm.s.pfnRCShwModifyPage = pModeData->pfnRCShwModifyPage;
3469
3470	pVM->pgm.s.pfnR0ShwGetPage = pModeData->pfnR0ShwGetPage;
3471	pVM->pgm.s.pfnR0ShwModifyPage = pModeData->pfnR0ShwModifyPage;
3472
3473
3474	/* guest */
3475	pVM->pgm.s.pfnR3GstRelocate = pModeData->pfnR3GstRelocate;
3476	pVM->pgm.s.pfnR3GstExit = pModeData->pfnR3GstExit;
3477	pVM->pgm.s.pfnR3GstGetPage = pModeData->pfnR3GstGetPage;
3478	Assert(pVM->pgm.s.pfnR3GstGetPage);
3479	pVM->pgm.s.pfnR3GstModifyPage = pModeData->pfnR3GstModifyPage;
3480	pVM->pgm.s.pfnR3GstGetPDE = pModeData->pfnR3GstGetPDE;
3481	pVM->pgm.s.pfnRCGstGetPage = pModeData->pfnRCGstGetPage;
3482	pVM->pgm.s.pfnRCGstModifyPage = pModeData->pfnRCGstModifyPage;
3483	pVM->pgm.s.pfnRCGstGetPDE = pModeData->pfnRCGstGetPDE;
3484	pVM->pgm.s.pfnR0GstGetPage = pModeData->pfnR0GstGetPage;
3485	pVM->pgm.s.pfnR0GstModifyPage = pModeData->pfnR0GstModifyPage;
3486	pVM->pgm.s.pfnR0GstGetPDE = pModeData->pfnR0GstGetPDE;
3487
3488	/* both */
3489	pVM->pgm.s.pfnR3BthRelocate = pModeData->pfnR3BthRelocate;
3490	pVM->pgm.s.pfnR3BthInvalidatePage = pModeData->pfnR3BthInvalidatePage;
3491	pVM->pgm.s.pfnR3BthSyncCR3 = pModeData->pfnR3BthSyncCR3;
3492	Assert(pVM->pgm.s.pfnR3BthSyncCR3);
3493	pVM->pgm.s.pfnR3BthSyncPage = pModeData->pfnR3BthSyncPage;
3494	pVM->pgm.s.pfnR3BthPrefetchPage = pModeData->pfnR3BthPrefetchPage;
3495	pVM->pgm.s.pfnR3BthVerifyAccessSyncPage = pModeData->pfnR3BthVerifyAccessSyncPage;
3496	#ifdef VBOX_STRICT
3497	pVM->pgm.s.pfnR3BthAssertCR3 = pModeData->pfnR3BthAssertCR3;
3498	#endif
3499	pVM->pgm.s.pfnR3BthMapCR3 = pModeData->pfnR3BthMapCR3;
3500	pVM->pgm.s.pfnR3BthUnmapCR3 = pModeData->pfnR3BthUnmapCR3;
3501
3502	pVM->pgm.s.pfnRCBthTrap0eHandler = pModeData->pfnRCBthTrap0eHandler;
3503	pVM->pgm.s.pfnRCBthInvalidatePage = pModeData->pfnRCBthInvalidatePage;
3504	pVM->pgm.s.pfnRCBthSyncCR3 = pModeData->pfnRCBthSyncCR3;
3505	pVM->pgm.s.pfnRCBthSyncPage = pModeData->pfnRCBthSyncPage;
3506	pVM->pgm.s.pfnRCBthPrefetchPage = pModeData->pfnRCBthPrefetchPage;
3507	pVM->pgm.s.pfnRCBthVerifyAccessSyncPage = pModeData->pfnRCBthVerifyAccessSyncPage;
3508	#ifdef VBOX_STRICT
3509	pVM->pgm.s.pfnRCBthAssertCR3 = pModeData->pfnRCBthAssertCR3;
3510	#endif
3511	pVM->pgm.s.pfnRCBthMapCR3 = pModeData->pfnRCBthMapCR3;
3512	pVM->pgm.s.pfnRCBthUnmapCR3 = pModeData->pfnRCBthUnmapCR3;
3513
3514	pVM->pgm.s.pfnR0BthTrap0eHandler = pModeData->pfnR0BthTrap0eHandler;
3515	pVM->pgm.s.pfnR0BthInvalidatePage = pModeData->pfnR0BthInvalidatePage;
3516	pVM->pgm.s.pfnR0BthSyncCR3 = pModeData->pfnR0BthSyncCR3;
3517	pVM->pgm.s.pfnR0BthSyncPage = pModeData->pfnR0BthSyncPage;
3518	pVM->pgm.s.pfnR0BthPrefetchPage = pModeData->pfnR0BthPrefetchPage;
3519	pVM->pgm.s.pfnR0BthVerifyAccessSyncPage = pModeData->pfnR0BthVerifyAccessSyncPage;
3520	#ifdef VBOX_STRICT
3521	pVM->pgm.s.pfnR0BthAssertCR3 = pModeData->pfnR0BthAssertCR3;
3522	#endif
3523	pVM->pgm.s.pfnR0BthMapCR3 = pModeData->pfnR0BthMapCR3;
3524	pVM->pgm.s.pfnR0BthUnmapCR3 = pModeData->pfnR0BthUnmapCR3;
3525	}
3526
3527
3528	/**
3529	* Calculates the shadow paging mode.
3530	*
3531	* @returns The shadow paging mode.
3532	* @param pVM VM handle.
3533	* @param enmGuestMode The guest mode.
3534	* @param enmHostMode The host mode.
3535	* @param enmShadowMode The current shadow mode.
3536	* @param penmSwitcher Where to store the switcher to use.
3537	* VMMSWITCHER_INVALID means no change.
3538	*/
3539	static PGMMODE pgmR3CalcShadowMode(PVM pVM, PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher)
3540	{
3541	VMMSWITCHER enmSwitcher = VMMSWITCHER_INVALID;
3542	switch (enmGuestMode)
3543	{
3544	/*
3545	* When switching to real or protected mode we don't change
3546	* anything since it's likely that we'll switch back pretty soon.
3547	*
3548	* During pgmR3InitPaging we'll end up here with PGMMODE_INVALID
3549	* and is supposed to determine which shadow paging and switcher to
3550	* use during init.
3551	*/
3552	case PGMMODE_REAL:
3553	case PGMMODE_PROTECTED:
3554	if ( enmShadowMode != PGMMODE_INVALID
3555	&& !HWACCMIsEnabled(pVM) /* always switch in hwaccm mode! */)
3556	break; /* (no change) */
3557
3558	switch (enmHostMode)
3559	{
3560	case SUPPAGINGMODE_32_BIT:
3561	case SUPPAGINGMODE_32_BIT_GLOBAL:
3562	enmShadowMode = PGMMODE_32_BIT;
3563	enmSwitcher = VMMSWITCHER_32_TO_32;
3564	break;
3565
3566	case SUPPAGINGMODE_PAE:
3567	case SUPPAGINGMODE_PAE_NX:
3568	case SUPPAGINGMODE_PAE_GLOBAL:
3569	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3570	enmShadowMode = PGMMODE_PAE;
3571	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
3572	#ifdef DEBUG_bird
3573	if (RTEnvExist("VBOX_32BIT"))
3574	{
3575	enmShadowMode = PGMMODE_32_BIT;
3576	enmSwitcher = VMMSWITCHER_PAE_TO_32;
3577	}
3578	#endif
3579	break;
3580
3581	case SUPPAGINGMODE_AMD64:
3582	case SUPPAGINGMODE_AMD64_GLOBAL:
3583	case SUPPAGINGMODE_AMD64_NX:
3584	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3585	enmShadowMode = PGMMODE_PAE;
3586	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
3587	#ifdef DEBUG_bird
3588	if (RTEnvExist("VBOX_32BIT"))
3589	{
3590	enmShadowMode = PGMMODE_32_BIT;
3591	enmSwitcher = VMMSWITCHER_AMD64_TO_32;
3592	}
3593	#endif
3594	break;
3595
3596	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3597	}
3598	break;
3599
3600	case PGMMODE_32_BIT:
3601	switch (enmHostMode)
3602	{
3603	case SUPPAGINGMODE_32_BIT:
3604	case SUPPAGINGMODE_32_BIT_GLOBAL:
3605	enmShadowMode = PGMMODE_32_BIT;
3606	enmSwitcher = VMMSWITCHER_32_TO_32;
3607	break;
3608
3609	case SUPPAGINGMODE_PAE:
3610	case SUPPAGINGMODE_PAE_NX:
3611	case SUPPAGINGMODE_PAE_GLOBAL:
3612	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3613	enmShadowMode = PGMMODE_PAE;
3614	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
3615	#ifdef DEBUG_bird
3616	if (RTEnvExist("VBOX_32BIT"))
3617	{
3618	enmShadowMode = PGMMODE_32_BIT;
3619	enmSwitcher = VMMSWITCHER_PAE_TO_32;
3620	}
3621	#endif
3622	break;
3623
3624	case SUPPAGINGMODE_AMD64:
3625	case SUPPAGINGMODE_AMD64_GLOBAL:
3626	case SUPPAGINGMODE_AMD64_NX:
3627	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3628	enmShadowMode = PGMMODE_PAE;
3629	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
3630	#ifdef DEBUG_bird
3631	if (RTEnvExist("VBOX_32BIT"))
3632	{
3633	enmShadowMode = PGMMODE_32_BIT;
3634	enmSwitcher = VMMSWITCHER_AMD64_TO_32;
3635	}
3636	#endif
3637	break;
3638
3639	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3640	}
3641	break;
3642
3643	case PGMMODE_PAE:
3644	case PGMMODE_PAE_NX: /** @todo This might require more switchers and guest+both modes. */
3645	switch (enmHostMode)
3646	{
3647	case SUPPAGINGMODE_32_BIT:
3648	case SUPPAGINGMODE_32_BIT_GLOBAL:
3649	enmShadowMode = PGMMODE_PAE;
3650	enmSwitcher = VMMSWITCHER_32_TO_PAE;
3651	break;
3652
3653	case SUPPAGINGMODE_PAE:
3654	case SUPPAGINGMODE_PAE_NX:
3655	case SUPPAGINGMODE_PAE_GLOBAL:
3656	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3657	enmShadowMode = PGMMODE_PAE;
3658	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
3659	break;
3660
3661	case SUPPAGINGMODE_AMD64:
3662	case SUPPAGINGMODE_AMD64_GLOBAL:
3663	case SUPPAGINGMODE_AMD64_NX:
3664	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3665	enmShadowMode = PGMMODE_PAE;
3666	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
3667	break;
3668
3669	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3670	}
3671	break;
3672
3673	case PGMMODE_AMD64:
3674	case PGMMODE_AMD64_NX:
3675	switch (enmHostMode)
3676	{
3677	case SUPPAGINGMODE_32_BIT:
3678	case SUPPAGINGMODE_32_BIT_GLOBAL:
3679	enmShadowMode = PGMMODE_AMD64;
3680	enmSwitcher = VMMSWITCHER_32_TO_AMD64;
3681	break;
3682
3683	case SUPPAGINGMODE_PAE:
3684	case SUPPAGINGMODE_PAE_NX:
3685	case SUPPAGINGMODE_PAE_GLOBAL:
3686	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3687	enmShadowMode = PGMMODE_AMD64;
3688	enmSwitcher = VMMSWITCHER_PAE_TO_AMD64;
3689	break;
3690
3691	case SUPPAGINGMODE_AMD64:
3692	case SUPPAGINGMODE_AMD64_GLOBAL:
3693	case SUPPAGINGMODE_AMD64_NX:
3694	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3695	enmShadowMode = PGMMODE_AMD64;
3696	enmSwitcher = VMMSWITCHER_AMD64_TO_AMD64;
3697	break;
3698
3699	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3700	}
3701	break;
3702
3703
3704	default:
3705	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
3706	return PGMMODE_INVALID;
3707	}
3708	/* Override the shadow mode is nested paging is active. */
3709	if (HWACCMIsNestedPagingActive(pVM))
3710	enmShadowMode = HWACCMGetShwPagingMode(pVM);
3711
3712	*penmSwitcher = enmSwitcher;
3713	return enmShadowMode;
3714	}
3715
3716
3717	/**
3718	* Performs the actual mode change.
3719	* This is called by PGMChangeMode and pgmR3InitPaging().
3720	*
3721	* @returns VBox status code.
3722	* @param pVM VM handle.
3723	* @param enmGuestMode The new guest mode. This is assumed to be different from
3724	* the current mode.
3725	*/
3726	VMMR3DECL(int) PGMR3ChangeMode(PVM pVM, PGMMODE enmGuestMode)
3727	{
3728	Log(("PGMR3ChangeMode: Guest mode: %s -> %s\n", PGMGetModeName(pVM->pgm.s.enmGuestMode), PGMGetModeName(enmGuestMode)));
3729	STAM_REL_COUNTER_INC(&pVM->pgm.s.cGuestModeChanges);
3730
3731	/*
3732	* Calc the shadow mode and switcher.
3733	*/
3734	VMMSWITCHER enmSwitcher;
3735	PGMMODE enmShadowMode = pgmR3CalcShadowMode(pVM, enmGuestMode, pVM->pgm.s.enmHostMode, pVM->pgm.s.enmShadowMode, &enmSwitcher);
3736	if (enmSwitcher != VMMSWITCHER_INVALID)
3737	{
3738	/*
3739	* Select new switcher.
3740	*/
3741	int rc = VMMR3SelectSwitcher(pVM, enmSwitcher);
3742	if (RT_FAILURE(rc))
3743	{
3744	AssertReleaseMsgFailed(("VMMR3SelectSwitcher(%d) -> %Rrc\n", enmSwitcher, rc));
3745	return rc;
3746	}
3747	}
3748
3749	/*
3750	* Exit old mode(s).
3751	*/
3752	/* shadow */
3753	if (enmShadowMode != pVM->pgm.s.enmShadowMode)
3754	{
3755	LogFlow(("PGMR3ChangeMode: Shadow mode: %s -> %s\n", PGMGetModeName(pVM->pgm.s.enmShadowMode), PGMGetModeName(enmShadowMode)));
3756	if (PGM_SHW_PFN(Exit, pVM))
3757	{
3758	int rc = PGM_SHW_PFN(Exit, pVM)(pVM);
3759	if (RT_FAILURE(rc))
3760	{
3761	AssertMsgFailed(("Exit failed for shadow mode %d: %Rrc\n", pVM->pgm.s.enmShadowMode, rc));
3762	return rc;
3763	}
3764	}
3765
3766	}
3767	else
3768	LogFlow(("PGMR3ChangeMode: Shadow mode remains: %s\n", PGMGetModeName(pVM->pgm.s.enmShadowMode)));
3769
3770	/* guest */
3771	if (PGM_GST_PFN(Exit, pVM))
3772	{
3773	int rc = PGM_GST_PFN(Exit, pVM)(pVM);
3774	if (RT_FAILURE(rc))
3775	{
3776	AssertMsgFailed(("Exit failed for guest mode %d: %Rrc\n", pVM->pgm.s.enmGuestMode, rc));
3777	return rc;
3778	}
3779	}
3780
3781	/*
3782	* Load new paging mode data.
3783	*/
3784	pgmR3ModeDataSwitch(pVM, enmShadowMode, enmGuestMode);
3785
3786	/*
3787	* Enter new shadow mode (if changed).
3788	*/
3789	if (enmShadowMode != pVM->pgm.s.enmShadowMode)
3790	{
3791	int rc;
3792	pVM->pgm.s.enmShadowMode = enmShadowMode;
3793	switch (enmShadowMode)
3794	{
3795	case PGMMODE_32_BIT:
3796	rc = PGM_SHW_NAME_32BIT(Enter)(pVM);
3797	break;
3798	case PGMMODE_PAE:
3799	case PGMMODE_PAE_NX:
3800	rc = PGM_SHW_NAME_PAE(Enter)(pVM);
3801	break;
3802	case PGMMODE_AMD64:
3803	case PGMMODE_AMD64_NX:
3804	rc = PGM_SHW_NAME_AMD64(Enter)(pVM);
3805	break;
3806	case PGMMODE_NESTED:
3807	rc = PGM_SHW_NAME_NESTED(Enter)(pVM);
3808	break;
3809	case PGMMODE_EPT:
3810	rc = PGM_SHW_NAME_EPT(Enter)(pVM);
3811	break;
3812	case PGMMODE_REAL:
3813	case PGMMODE_PROTECTED:
3814	default:
3815	AssertReleaseMsgFailed(("enmShadowMode=%d\n", enmShadowMode));
3816	return VERR_INTERNAL_ERROR;
3817	}
3818	if (RT_FAILURE(rc))
3819	{
3820	AssertReleaseMsgFailed(("Entering enmShadowMode=%d failed: %Rrc\n", enmShadowMode, rc));
3821	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
3822	return rc;
3823	}
3824	}
3825
3826	/*
3827	* Always flag the necessary updates
3828	*/
3829	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
3830
3831	/*
3832	* Enter the new guest and shadow+guest modes.
3833	*/
3834	int rc = -1;
3835	int rc2 = -1;
3836	RTGCPHYS GCPhysCR3 = NIL_RTGCPHYS;
3837	pVM->pgm.s.enmGuestMode = enmGuestMode;
3838	switch (enmGuestMode)
3839	{
3840	case PGMMODE_REAL:
3841	rc = PGM_GST_NAME_REAL(Enter)(pVM, NIL_RTGCPHYS);
3842	switch (pVM->pgm.s.enmShadowMode)
3843	{
3844	case PGMMODE_32_BIT:
3845	rc2 = PGM_BTH_NAME_32BIT_REAL(Enter)(pVM, NIL_RTGCPHYS);
3846	break;
3847	case PGMMODE_PAE:
3848	case PGMMODE_PAE_NX:
3849	rc2 = PGM_BTH_NAME_PAE_REAL(Enter)(pVM, NIL_RTGCPHYS);
3850	break;
3851	case PGMMODE_NESTED:
3852	rc2 = PGM_BTH_NAME_NESTED_REAL(Enter)(pVM, NIL_RTGCPHYS);
3853	break;
3854	case PGMMODE_EPT:
3855	rc2 = PGM_BTH_NAME_EPT_REAL(Enter)(pVM, NIL_RTGCPHYS);
3856	break;
3857	case PGMMODE_AMD64:
3858	case PGMMODE_AMD64_NX:
3859	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3860	default: AssertFailed(); break;
3861	}
3862	break;
3863
3864	case PGMMODE_PROTECTED:
3865	rc = PGM_GST_NAME_PROT(Enter)(pVM, NIL_RTGCPHYS);
3866	switch (pVM->pgm.s.enmShadowMode)
3867	{
3868	case PGMMODE_32_BIT:
3869	rc2 = PGM_BTH_NAME_32BIT_PROT(Enter)(pVM, NIL_RTGCPHYS);
3870	break;
3871	case PGMMODE_PAE:
3872	case PGMMODE_PAE_NX:
3873	rc2 = PGM_BTH_NAME_PAE_PROT(Enter)(pVM, NIL_RTGCPHYS);
3874	break;
3875	case PGMMODE_NESTED:
3876	rc2 = PGM_BTH_NAME_NESTED_PROT(Enter)(pVM, NIL_RTGCPHYS);
3877	break;
3878	case PGMMODE_EPT:
3879	rc2 = PGM_BTH_NAME_EPT_PROT(Enter)(pVM, NIL_RTGCPHYS);
3880	break;
3881	case PGMMODE_AMD64:
3882	case PGMMODE_AMD64_NX:
3883	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3884	default: AssertFailed(); break;
3885	}
3886	break;
3887
3888	case PGMMODE_32_BIT:
3889	GCPhysCR3 = CPUMGetGuestCR3(pVM) & X86_CR3_PAGE_MASK;
3890	rc = PGM_GST_NAME_32BIT(Enter)(pVM, GCPhysCR3);
3891	switch (pVM->pgm.s.enmShadowMode)
3892	{
3893	case PGMMODE_32_BIT:
3894	rc2 = PGM_BTH_NAME_32BIT_32BIT(Enter)(pVM, GCPhysCR3);
3895	break;
3896	case PGMMODE_PAE:
3897	case PGMMODE_PAE_NX:
3898	rc2 = PGM_BTH_NAME_PAE_32BIT(Enter)(pVM, GCPhysCR3);
3899	break;
3900	case PGMMODE_NESTED:
3901	rc2 = PGM_BTH_NAME_NESTED_32BIT(Enter)(pVM, GCPhysCR3);
3902	break;
3903	case PGMMODE_EPT:
3904	rc2 = PGM_BTH_NAME_EPT_32BIT(Enter)(pVM, GCPhysCR3);
3905	break;
3906	case PGMMODE_AMD64:
3907	case PGMMODE_AMD64_NX:
3908	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3909	default: AssertFailed(); break;
3910	}
3911	break;
3912
3913	case PGMMODE_PAE_NX:
3914	case PGMMODE_PAE:
3915	{
3916	uint32_t u32Dummy, u32Features;
3917
3918	CPUMGetGuestCpuId(pVM, 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
3919	if (!(u32Features & X86_CPUID_FEATURE_EDX_PAE))
3920	{
3921	/* Pause first, then inform Main. */
3922	rc = VMR3SuspendNoSave(pVM);
3923	AssertRC(rc);
3924
3925	VMSetRuntimeError(pVM, true, "PAEmode",
3926	N_("The guest is trying to switch to the PAE mode which is currently disabled by default in VirtualBox. PAE support can be enabled using the VM settings (General/Advanced)"));
3927	/* we must return VINF_SUCCESS here otherwise the recompiler will assert */
3928	return VINF_SUCCESS;
3929	}
3930	GCPhysCR3 = CPUMGetGuestCR3(pVM) & X86_CR3_PAE_PAGE_MASK;
3931	rc = PGM_GST_NAME_PAE(Enter)(pVM, GCPhysCR3);
3932	switch (pVM->pgm.s.enmShadowMode)
3933	{
3934	case PGMMODE_PAE:
3935	case PGMMODE_PAE_NX:
3936	rc2 = PGM_BTH_NAME_PAE_PAE(Enter)(pVM, GCPhysCR3);
3937	break;
3938	case PGMMODE_NESTED:
3939	rc2 = PGM_BTH_NAME_NESTED_PAE(Enter)(pVM, GCPhysCR3);
3940	break;
3941	case PGMMODE_EPT:
3942	rc2 = PGM_BTH_NAME_EPT_PAE(Enter)(pVM, GCPhysCR3);
3943	break;
3944	case PGMMODE_32_BIT:
3945	case PGMMODE_AMD64:
3946	case PGMMODE_AMD64_NX:
3947	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3948	default: AssertFailed(); break;
3949	}
3950	break;
3951	}
3952
3953	#ifdef VBOX_WITH_64_BITS_GUESTS
3954	case PGMMODE_AMD64_NX:
3955	case PGMMODE_AMD64:
3956	GCPhysCR3 = CPUMGetGuestCR3(pVM) & UINT64_C(0xfffffffffffff000); /** @todo define this mask! */
3957	rc = PGM_GST_NAME_AMD64(Enter)(pVM, GCPhysCR3);
3958	switch (pVM->pgm.s.enmShadowMode)
3959	{
3960	case PGMMODE_AMD64:
3961	case PGMMODE_AMD64_NX:
3962	rc2 = PGM_BTH_NAME_AMD64_AMD64(Enter)(pVM, GCPhysCR3);
3963	break;
3964	case PGMMODE_NESTED:
3965	rc2 = PGM_BTH_NAME_NESTED_AMD64(Enter)(pVM, GCPhysCR3);
3966	break;
3967	case PGMMODE_EPT:
3968	rc2 = PGM_BTH_NAME_EPT_AMD64(Enter)(pVM, GCPhysCR3);
3969	break;
3970	case PGMMODE_32_BIT:
3971	case PGMMODE_PAE:
3972	case PGMMODE_PAE_NX:
3973	AssertMsgFailed(("Should use AMD64 shadow mode!\n"));
3974	default: AssertFailed(); break;
3975	}
3976	break;
3977	#endif
3978
3979	default:
3980	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
3981	rc = VERR_NOT_IMPLEMENTED;
3982	break;
3983	}
3984
3985	/* status codes. */
3986	AssertRC(rc);
3987	AssertRC(rc2);
3988	if (RT_SUCCESS(rc))
3989	{
3990	rc = rc2;
3991	if (RT_SUCCESS(rc)) /* no informational status codes. */
3992	rc = VINF_SUCCESS;
3993	}
3994
3995	/* Notify HWACCM as well. */
3996	HWACCMR3PagingModeChanged(pVM, pVM->pgm.s.enmShadowMode, pVM->pgm.s.enmGuestMode);
3997	return rc;
3998	}
3999
4000
4001	/**
4002	* Dumps a PAE shadow page table.
4003	*
4004	* @returns VBox status code (VINF_SUCCESS).
4005	* @param pVM The VM handle.
4006	* @param pPT Pointer to the page table.
4007	* @param u64Address The virtual address of the page table starts.
4008	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
4009	* @param cMaxDepth The maxium depth.
4010	* @param pHlp Pointer to the output functions.
4011	*/
4012	static int pgmR3DumpHierarchyHCPaePT(PVM pVM, PX86PTPAE pPT, uint64_t u64Address, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4013	{
4014	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
4015	{
4016	X86PTEPAE Pte = pPT->a[i];
4017	if (Pte.n.u1Present)
4018	{
4019	pHlp->pfnPrintf(pHlp,
4020	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
4021	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n"
4022	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n",
4023	u64Address + ((uint64_t)i << X86_PT_PAE_SHIFT),
4024	Pte.n.u1Write ? 'W' : 'R',
4025	Pte.n.u1User ? 'U' : 'S',
4026	Pte.n.u1Accessed ? 'A' : '-',
4027	Pte.n.u1Dirty ? 'D' : '-',
4028	Pte.n.u1Global ? 'G' : '-',
4029	Pte.n.u1WriteThru ? "WT" : "--",
4030	Pte.n.u1CacheDisable? "CD" : "--",
4031	Pte.n.u1PAT ? "AT" : "--",
4032	Pte.n.u1NoExecute ? "NX" : "--",
4033	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
4034	Pte.u & RT_BIT(10) ? '1' : '0',
4035	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED? 'v' : '-',
4036	Pte.u & X86_PTE_PAE_PG_MASK);
4037	}
4038	}
4039	return VINF_SUCCESS;
4040	}
4041
4042
4043	/**
4044	* Dumps a PAE shadow page directory table.
4045	*
4046	* @returns VBox status code (VINF_SUCCESS).
4047	* @param pVM The VM handle.
4048	* @param HCPhys The physical address of the page directory table.
4049	* @param u64Address The virtual address of the page table starts.
4050	* @param cr4 The CR4, PSE is currently used.
4051	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
4052	* @param cMaxDepth The maxium depth.
4053	* @param pHlp Pointer to the output functions.
4054	*/
4055	static int pgmR3DumpHierarchyHCPaePD(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4056	{
4057	PX86PDPAE pPD = (PX86PDPAE)MMPagePhys2Page(pVM, HCPhys);
4058	if (!pPD)
4059	{
4060	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory at HCPhys=%RHp was not found in the page pool!\n",
4061	fLongMode ? 16 : 8, u64Address, HCPhys);
4062	return VERR_INVALID_PARAMETER;
4063	}
4064	const bool fBigPagesSupported = fLongMode \|\| !!(cr4 & X86_CR4_PSE);
4065
4066	int rc = VINF_SUCCESS;
4067	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
4068	{
4069	X86PDEPAE Pde = pPD->a[i];
4070	if (Pde.n.u1Present)
4071	{
4072	if (fBigPagesSupported && Pde.b.u1Size)
4073	pHlp->pfnPrintf(pHlp,
4074	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
4075	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n"
4076	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n",
4077	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
4078	Pde.b.u1Write ? 'W' : 'R',
4079	Pde.b.u1User ? 'U' : 'S',
4080	Pde.b.u1Accessed ? 'A' : '-',
4081	Pde.b.u1Dirty ? 'D' : '-',
4082	Pde.b.u1Global ? 'G' : '-',
4083	Pde.b.u1WriteThru ? "WT" : "--",
4084	Pde.b.u1CacheDisable? "CD" : "--",
4085	Pde.b.u1PAT ? "AT" : "--",
4086	Pde.b.u1NoExecute ? "NX" : "--",
4087	Pde.u & RT_BIT_64(9) ? '1' : '0',
4088	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
4089	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
4090	Pde.u & X86_PDE_PAE_PG_MASK);
4091	else
4092	{
4093	pHlp->pfnPrintf(pHlp,
4094	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
4095	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n"
4096	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n",
4097	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
4098	Pde.n.u1Write ? 'W' : 'R',
4099	Pde.n.u1User ? 'U' : 'S',
4100	Pde.n.u1Accessed ? 'A' : '-',
4101	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
4102	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
4103	Pde.n.u1WriteThru ? "WT" : "--",
4104	Pde.n.u1CacheDisable? "CD" : "--",
4105	Pde.n.u1NoExecute ? "NX" : "--",
4106	Pde.u & RT_BIT_64(9) ? '1' : '0',
4107	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
4108	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
4109	Pde.u & X86_PDE_PAE_PG_MASK);
4110	if (cMaxDepth >= 1)
4111	{
4112	/** @todo what about using the page pool for mapping PTs? */
4113	uint64_t u64AddressPT = u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT);
4114	RTHCPHYS HCPhysPT = Pde.u & X86_PDE_PAE_PG_MASK;
4115	PX86PTPAE pPT = NULL;
4116	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
4117	pPT = (PX86PTPAE)MMPagePhys2Page(pVM, HCPhysPT);
4118	else
4119	{
4120	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
4121	{
4122	uint64_t off = u64AddressPT - pMap->GCPtr;
4123	if (off < pMap->cb)
4124	{
4125	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
4126	const int iSub = (int)((off >> X86_PD_PAE_SHIFT) & 1); /* MSC is a pain sometimes */
4127	if ((iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0) != HCPhysPT)
4128	pHlp->pfnPrintf(pHlp, "%0*llx error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
4129	fLongMode ? 16 : 8, u64AddressPT, iPDE,
4130	iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0, HCPhysPT);
4131	pPT = &pMap->aPTs[iPDE].paPaePTsR3[iSub];
4132	}
4133	}
4134	}
4135	int rc2 = VERR_INVALID_PARAMETER;
4136	if (pPT)
4137	rc2 = pgmR3DumpHierarchyHCPaePT(pVM, pPT, u64AddressPT, fLongMode, cMaxDepth - 1, pHlp);
4138	else
4139	pHlp->pfnPrintf(pHlp, "%0*llx error! Page table at HCPhys=%RHp was not found in the page pool!\n",
4140	fLongMode ? 16 : 8, u64AddressPT, HCPhysPT);
4141	if (rc2 < rc && RT_SUCCESS(rc))
4142	rc = rc2;
4143	}
4144	}
4145	}
4146	}
4147	return rc;
4148	}
4149
4150
4151	/**
4152	* Dumps a PAE shadow page directory pointer table.
4153	*
4154	* @returns VBox status code (VINF_SUCCESS).
4155	* @param pVM The VM handle.
4156	* @param HCPhys The physical address of the page directory pointer table.
4157	* @param u64Address The virtual address of the page table starts.
4158	* @param cr4 The CR4, PSE is currently used.
4159	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
4160	* @param cMaxDepth The maxium depth.
4161	* @param pHlp Pointer to the output functions.
4162	*/
4163	static int pgmR3DumpHierarchyHCPaePDPT(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4164	{
4165	PX86PDPT pPDPT = (PX86PDPT)MMPagePhys2Page(pVM, HCPhys);
4166	if (!pPDPT)
4167	{
4168	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory pointer table at HCPhys=%RHp was not found in the page pool!\n",
4169	fLongMode ? 16 : 8, u64Address, HCPhys);
4170	return VERR_INVALID_PARAMETER;
4171	}
4172
4173	int rc = VINF_SUCCESS;
4174	const unsigned c = fLongMode ? RT_ELEMENTS(pPDPT->a) : X86_PG_PAE_PDPE_ENTRIES;
4175	for (unsigned i = 0; i < c; i++)
4176	{
4177	X86PDPE Pdpe = pPDPT->a[i];
4178	if (Pdpe.n.u1Present)
4179	{
4180	if (fLongMode)
4181	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
4182	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
4183	u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
4184	Pdpe.lm.u1Write ? 'W' : 'R',
4185	Pdpe.lm.u1User ? 'U' : 'S',
4186	Pdpe.lm.u1Accessed ? 'A' : '-',
4187	Pdpe.lm.u3Reserved & 1? '?' : '.', /* ignored */
4188	Pdpe.lm.u3Reserved & 4? '!' : '.', /* mbz */
4189	Pdpe.lm.u1WriteThru ? "WT" : "--",
4190	Pdpe.lm.u1CacheDisable? "CD" : "--",
4191	Pdpe.lm.u3Reserved & 2? "!" : "..",/* mbz */
4192	Pdpe.lm.u1NoExecute ? "NX" : "--",
4193	Pdpe.u & RT_BIT(9) ? '1' : '0',
4194	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
4195	Pdpe.u & RT_BIT(11) ? '1' : '0',
4196	Pdpe.u & X86_PDPE_PG_MASK);
4197	else
4198	pHlp->pfnPrintf(pHlp, /P G WT CD AT NX 4M a p ? /
4199	"%08x 0 \| P %c %s %s %s %s .. %c%c%c %016llx\n",
4200	i << X86_PDPT_SHIFT,
4201	Pdpe.n.u4Reserved & 1? '!' : '.', /* mbz */
4202	Pdpe.n.u4Reserved & 4? '!' : '.', /* mbz */
4203	Pdpe.n.u1WriteThru ? "WT" : "--",
4204	Pdpe.n.u1CacheDisable? "CD" : "--",
4205	Pdpe.n.u4Reserved & 2? "!" : "..",/* mbz */
4206	Pdpe.u & RT_BIT(9) ? '1' : '0',
4207	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
4208	Pdpe.u & RT_BIT(11) ? '1' : '0',
4209	Pdpe.u & X86_PDPE_PG_MASK);
4210	if (cMaxDepth >= 1)
4211	{
4212	int rc2 = pgmR3DumpHierarchyHCPaePD(pVM, Pdpe.u & X86_PDPE_PG_MASK, u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
4213	cr4, fLongMode, cMaxDepth - 1, pHlp);
4214	if (rc2 < rc && RT_SUCCESS(rc))
4215	rc = rc2;
4216	}
4217	}
4218	}
4219	return rc;
4220	}
4221
4222
4223	/**
4224	* Dumps a 32-bit shadow page table.
4225	*
4226	* @returns VBox status code (VINF_SUCCESS).
4227	* @param pVM The VM handle.
4228	* @param HCPhys The physical address of the table.
4229	* @param cr4 The CR4, PSE is currently used.
4230	* @param cMaxDepth The maxium depth.
4231	* @param pHlp Pointer to the output functions.
4232	*/
4233	static int pgmR3DumpHierarchyHcPaePML4(PVM pVM, RTHCPHYS HCPhys, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4234	{
4235	PX86PML4 pPML4 = (PX86PML4)MMPagePhys2Page(pVM, HCPhys);
4236	if (!pPML4)
4237	{
4238	pHlp->pfnPrintf(pHlp, "Page map level 4 at HCPhys=%RHp was not found in the page pool!\n", HCPhys);
4239	return VERR_INVALID_PARAMETER;
4240	}
4241
4242	int rc = VINF_SUCCESS;
4243	for (unsigned i = 0; i < RT_ELEMENTS(pPML4->a); i++)
4244	{
4245	X86PML4E Pml4e = pPML4->a[i];
4246	if (Pml4e.n.u1Present)
4247	{
4248	uint64_t u64Address = ((uint64_t)i << X86_PML4_SHIFT) \| (((uint64_t)i >> (X86_PML4_SHIFT - X86_PDPT_SHIFT - 1)) * 0xffff000000000000ULL);
4249	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
4250	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
4251	u64Address,
4252	Pml4e.n.u1Write ? 'W' : 'R',
4253	Pml4e.n.u1User ? 'U' : 'S',
4254	Pml4e.n.u1Accessed ? 'A' : '-',
4255	Pml4e.n.u3Reserved & 1? '?' : '.', /* ignored */
4256	Pml4e.n.u3Reserved & 4? '!' : '.', /* mbz */
4257	Pml4e.n.u1WriteThru ? "WT" : "--",
4258	Pml4e.n.u1CacheDisable? "CD" : "--",
4259	Pml4e.n.u3Reserved & 2? "!" : "..",/* mbz */
4260	Pml4e.n.u1NoExecute ? "NX" : "--",
4261	Pml4e.u & RT_BIT(9) ? '1' : '0',
4262	Pml4e.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
4263	Pml4e.u & RT_BIT(11) ? '1' : '0',
4264	Pml4e.u & X86_PML4E_PG_MASK);
4265
4266	if (cMaxDepth >= 1)
4267	{
4268	int rc2 = pgmR3DumpHierarchyHCPaePDPT(pVM, Pml4e.u & X86_PML4E_PG_MASK, u64Address, cr4, true, cMaxDepth - 1, pHlp);
4269	if (rc2 < rc && RT_SUCCESS(rc))
4270	rc = rc2;
4271	}
4272	}
4273	}
4274	return rc;
4275	}
4276
4277
4278	/**
4279	* Dumps a 32-bit shadow page table.
4280	*
4281	* @returns VBox status code (VINF_SUCCESS).
4282	* @param pVM The VM handle.
4283	* @param pPT Pointer to the page table.
4284	* @param u32Address The virtual address this table starts at.
4285	* @param pHlp Pointer to the output functions.
4286	*/
4287	int pgmR3DumpHierarchyHC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, PCDBGFINFOHLP pHlp)
4288	{
4289	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
4290	{
4291	X86PTE Pte = pPT->a[i];
4292	if (Pte.n.u1Present)
4293	{
4294	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
4295	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
4296	u32Address + (i << X86_PT_SHIFT),
4297	Pte.n.u1Write ? 'W' : 'R',
4298	Pte.n.u1User ? 'U' : 'S',
4299	Pte.n.u1Accessed ? 'A' : '-',
4300	Pte.n.u1Dirty ? 'D' : '-',
4301	Pte.n.u1Global ? 'G' : '-',
4302	Pte.n.u1WriteThru ? "WT" : "--",
4303	Pte.n.u1CacheDisable? "CD" : "--",
4304	Pte.n.u1PAT ? "AT" : "--",
4305	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
4306	Pte.u & RT_BIT(10) ? '1' : '0',
4307	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
4308	Pte.u & X86_PDE_PG_MASK);
4309	}
4310	}
4311	return VINF_SUCCESS;
4312	}
4313
4314
4315	/**
4316	* Dumps a 32-bit shadow page directory and page tables.
4317	*
4318	* @returns VBox status code (VINF_SUCCESS).
4319	* @param pVM The VM handle.
4320	* @param cr3 The root of the hierarchy.
4321	* @param cr4 The CR4, PSE is currently used.
4322	* @param cMaxDepth How deep into the hierarchy the dumper should go.
4323	* @param pHlp Pointer to the output functions.
4324	*/
4325	int pgmR3DumpHierarchyHC32BitPD(PVM pVM, uint32_t cr3, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4326	{
4327	PX86PD pPD = (PX86PD)MMPagePhys2Page(pVM, cr3 & X86_CR3_PAGE_MASK);
4328	if (!pPD)
4329	{
4330	pHlp->pfnPrintf(pHlp, "Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK);
4331	return VERR_INVALID_PARAMETER;
4332	}
4333
4334	int rc = VINF_SUCCESS;
4335	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
4336	{
4337	X86PDE Pde = pPD->a[i];
4338	if (Pde.n.u1Present)
4339	{
4340	const uint32_t u32Address = i << X86_PD_SHIFT;
4341	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
4342	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
4343	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
4344	u32Address,
4345	Pde.b.u1Write ? 'W' : 'R',
4346	Pde.b.u1User ? 'U' : 'S',
4347	Pde.b.u1Accessed ? 'A' : '-',
4348	Pde.b.u1Dirty ? 'D' : '-',
4349	Pde.b.u1Global ? 'G' : '-',
4350	Pde.b.u1WriteThru ? "WT" : "--",
4351	Pde.b.u1CacheDisable? "CD" : "--",
4352	Pde.b.u1PAT ? "AT" : "--",
4353	Pde.u & RT_BIT_64(9) ? '1' : '0',
4354	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
4355	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
4356	Pde.u & X86_PDE4M_PG_MASK);
4357	else
4358	{
4359	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
4360	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
4361	u32Address,
4362	Pde.n.u1Write ? 'W' : 'R',
4363	Pde.n.u1User ? 'U' : 'S',
4364	Pde.n.u1Accessed ? 'A' : '-',
4365	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
4366	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
4367	Pde.n.u1WriteThru ? "WT" : "--",
4368	Pde.n.u1CacheDisable? "CD" : "--",
4369	Pde.u & RT_BIT_64(9) ? '1' : '0',
4370	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
4371	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
4372	Pde.u & X86_PDE_PG_MASK);
4373	if (cMaxDepth >= 1)
4374	{
4375	/** @todo what about using the page pool for mapping PTs? */
4376	RTHCPHYS HCPhys = Pde.u & X86_PDE_PG_MASK;
4377	PX86PT pPT = NULL;
4378	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
4379	pPT = (PX86PT)MMPagePhys2Page(pVM, HCPhys);
4380	else
4381	{
4382	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
4383	if (u32Address - pMap->GCPtr < pMap->cb)
4384	{
4385	int iPDE = (u32Address - pMap->GCPtr) >> X86_PD_SHIFT;
4386	if (pMap->aPTs[iPDE].HCPhysPT != HCPhys)
4387	pHlp->pfnPrintf(pHlp, "%08x error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
4388	u32Address, iPDE, pMap->aPTs[iPDE].HCPhysPT, HCPhys);
4389	pPT = pMap->aPTs[iPDE].pPTR3;
4390	}
4391	}
4392	int rc2 = VERR_INVALID_PARAMETER;
4393	if (pPT)
4394	rc2 = pgmR3DumpHierarchyHC32BitPT(pVM, pPT, u32Address, pHlp);
4395	else
4396	pHlp->pfnPrintf(pHlp, "%08x error! Page table at %#x was not found in the page pool!\n", u32Address, HCPhys);
4397	if (rc2 < rc && RT_SUCCESS(rc))
4398	rc = rc2;
4399	}
4400	}
4401	}
4402	}
4403
4404	return rc;
4405	}
4406
4407
4408	/**
4409	* Dumps a 32-bit shadow page table.
4410	*
4411	* @returns VBox status code (VINF_SUCCESS).
4412	* @param pVM The VM handle.
4413	* @param pPT Pointer to the page table.
4414	* @param u32Address The virtual address this table starts at.
4415	* @param PhysSearch Address to search for.
4416	*/
4417	int pgmR3DumpHierarchyGC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, RTGCPHYS PhysSearch)
4418	{
4419	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
4420	{
4421	X86PTE Pte = pPT->a[i];
4422	if (Pte.n.u1Present)
4423	{
4424	Log(( /P R S A D G WT CD AT NX 4M a m d /
4425	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
4426	u32Address + (i << X86_PT_SHIFT),
4427	Pte.n.u1Write ? 'W' : 'R',
4428	Pte.n.u1User ? 'U' : 'S',
4429	Pte.n.u1Accessed ? 'A' : '-',
4430	Pte.n.u1Dirty ? 'D' : '-',
4431	Pte.n.u1Global ? 'G' : '-',
4432	Pte.n.u1WriteThru ? "WT" : "--",
4433	Pte.n.u1CacheDisable? "CD" : "--",
4434	Pte.n.u1PAT ? "AT" : "--",
4435	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
4436	Pte.u & RT_BIT(10) ? '1' : '0',
4437	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
4438	Pte.u & X86_PDE_PG_MASK));
4439
4440	if ((Pte.u & X86_PDE_PG_MASK) == PhysSearch)
4441	{
4442	uint64_t fPageShw = 0;
4443	RTHCPHYS pPhysHC = 0;
4444
4445	PGMShwGetPage(pVM, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), &fPageShw, &pPhysHC);
4446	Log(("Found %RGp at %RGv -> flags=%llx\n", PhysSearch, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), fPageShw));
4447	}
4448	}
4449	}
4450	return VINF_SUCCESS;
4451	}
4452
4453
4454	/**
4455	* Dumps a 32-bit guest page directory and page tables.
4456	*
4457	* @returns VBox status code (VINF_SUCCESS).
4458	* @param pVM The VM handle.
4459	* @param cr3 The root of the hierarchy.
4460	* @param cr4 The CR4, PSE is currently used.
4461	* @param PhysSearch Address to search for.
4462	*/
4463	VMMR3DECL(int) PGMR3DumpHierarchyGC(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCPHYS PhysSearch)
4464	{
4465	bool fLongMode = false;
4466	const unsigned cch = fLongMode ? 16 : 8; NOREF(cch);
4467	PX86PD pPD = 0;
4468
4469	int rc = PGM_GCPHYS_2_PTR(pVM, cr3 & X86_CR3_PAGE_MASK, &pPD);
4470	if (RT_FAILURE(rc) \|\| !pPD)
4471	{
4472	Log(("Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK));
4473	return VERR_INVALID_PARAMETER;
4474	}
4475
4476	Log(("cr3=%08x cr4=%08x%s\n"
4477	"%-*s P - Present\n"
4478	"%-*s \| R/W - Read (0) / Write (1)\n"
4479	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
4480	"%-*s \| \| \| A - Accessed\n"
4481	"%-*s \| \| \| \| D - Dirty\n"
4482	"%-*s \| \| \| \| \| G - Global\n"
4483	"%-*s \| \| \| \| \| \| WT - Write thru\n"
4484	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
4485	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
4486	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
4487	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
4488	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
4489	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
4490	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
4491	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
4492	- W U - - - -- -- -- -- -- 010 */
4493	, cr3, cr4, fLongMode ? " Long Mode" : "",
4494	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
4495	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address"));
4496
4497	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
4498	{
4499	X86PDE Pde = pPD->a[i];
4500	if (Pde.n.u1Present)
4501	{
4502	const uint32_t u32Address = i << X86_PD_SHIFT;
4503
4504	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
4505	Log(( /P R S A D G WT CD AT NX 4M a m d /
4506	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
4507	u32Address,
4508	Pde.b.u1Write ? 'W' : 'R',
4509	Pde.b.u1User ? 'U' : 'S',
4510	Pde.b.u1Accessed ? 'A' : '-',
4511	Pde.b.u1Dirty ? 'D' : '-',
4512	Pde.b.u1Global ? 'G' : '-',
4513	Pde.b.u1WriteThru ? "WT" : "--",
4514	Pde.b.u1CacheDisable? "CD" : "--",
4515	Pde.b.u1PAT ? "AT" : "--",
4516	Pde.u & RT_BIT(9) ? '1' : '0',
4517	Pde.u & RT_BIT(10) ? '1' : '0',
4518	Pde.u & RT_BIT(11) ? '1' : '0',
4519	pgmGstGet4MBPhysPage(&pVM->pgm.s, Pde)));
4520	/** @todo PhysSearch */
4521	else
4522	{
4523	Log(( /P R S A D G WT CD AT NX 4M a m d /
4524	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
4525	u32Address,
4526	Pde.n.u1Write ? 'W' : 'R',
4527	Pde.n.u1User ? 'U' : 'S',
4528	Pde.n.u1Accessed ? 'A' : '-',
4529	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
4530	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
4531	Pde.n.u1WriteThru ? "WT" : "--",
4532	Pde.n.u1CacheDisable? "CD" : "--",
4533	Pde.u & RT_BIT(9) ? '1' : '0',
4534	Pde.u & RT_BIT(10) ? '1' : '0',
4535	Pde.u & RT_BIT(11) ? '1' : '0',
4536	Pde.u & X86_PDE_PG_MASK));
4537	////if (cMaxDepth >= 1)
4538	{
4539	/** @todo what about using the page pool for mapping PTs? */
4540	RTGCPHYS GCPhys = Pde.u & X86_PDE_PG_MASK;
4541	PX86PT pPT = NULL;
4542
4543	rc = PGM_GCPHYS_2_PTR(pVM, GCPhys, &pPT);
4544
4545	int rc2 = VERR_INVALID_PARAMETER;
4546	if (pPT)
4547	rc2 = pgmR3DumpHierarchyGC32BitPT(pVM, pPT, u32Address, PhysSearch);
4548	else
4549	Log(("%08x error! Page table at %#x was not found in the page pool!\n", u32Address, GCPhys));
4550	if (rc2 < rc && RT_SUCCESS(rc))
4551	rc = rc2;
4552	}
4553	}
4554	}
4555	}
4556
4557	return rc;
4558	}
4559
4560
4561	/**
4562	* Dumps a page table hierarchy use only physical addresses and cr4/lm flags.
4563	*
4564	* @returns VBox status code (VINF_SUCCESS).
4565	* @param pVM The VM handle.
4566	* @param cr3 The root of the hierarchy.
4567	* @param cr4 The cr4, only PAE and PSE is currently used.
4568	* @param fLongMode Set if long mode, false if not long mode.
4569	* @param cMaxDepth Number of levels to dump.
4570	* @param pHlp Pointer to the output functions.
4571	*/
4572	VMMR3DECL(int) PGMR3DumpHierarchyHC(PVM pVM, uint64_t cr3, uint64_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4573	{
4574	if (!pHlp)
4575	pHlp = DBGFR3InfoLogHlp();
4576	if (!cMaxDepth)
4577	return VINF_SUCCESS;
4578	const unsigned cch = fLongMode ? 16 : 8;
4579	pHlp->pfnPrintf(pHlp,
4580	"cr3=%08x cr4=%08x%s\n"
4581	"%-*s P - Present\n"
4582	"%-*s \| R/W - Read (0) / Write (1)\n"
4583	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
4584	"%-*s \| \| \| A - Accessed\n"
4585	"%-*s \| \| \| \| D - Dirty\n"
4586	"%-*s \| \| \| \| \| G - Global\n"
4587	"%-*s \| \| \| \| \| \| WT - Write thru\n"
4588	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
4589	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
4590	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
4591	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
4592	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
4593	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
4594	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
4595	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
4596	- W U - - - -- -- -- -- -- 010 */
4597	, cr3, cr4, fLongMode ? " Long Mode" : "",
4598	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
4599	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
4600	if (cr4 & X86_CR4_PAE)
4601	{
4602	if (fLongMode)
4603	return pgmR3DumpHierarchyHcPaePML4(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
4604	return pgmR3DumpHierarchyHCPaePDPT(pVM, cr3 & X86_CR3_PAE_PAGE_MASK, 0, cr4, false, cMaxDepth, pHlp);
4605	}
4606	return pgmR3DumpHierarchyHC32BitPD(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
4607	}
4608
4609	#ifdef VBOX_WITH_DEBUGGER
4610
4611	/**
4612	* The '.pgmram' command.
4613	*
4614	* @returns VBox status.
4615	* @param pCmd Pointer to the command descriptor (as registered).
4616	* @param pCmdHlp Pointer to command helper functions.
4617	* @param pVM Pointer to the current VM (if any).
4618	* @param paArgs Pointer to (readonly) array of arguments.
4619	* @param cArgs Number of arguments in the array.
4620	*/
4621	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4622	{
4623	/*
4624	* Validate input.
4625	*/
4626	if (!pVM)
4627	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4628	if (!pVM->pgm.s.pRamRangesRC)
4629	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no Ram is registered.\n");
4630
4631	/*
4632	* Dump the ranges.
4633	*/
4634	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "From - To (incl) pvHC\n");
4635	PPGMRAMRANGE pRam;
4636	for (pRam = pVM->pgm.s.pRamRangesR3; pRam; pRam = pRam->pNextR3)
4637	{
4638	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
4639	"%RGp - %RGp %p\n",
4640	pRam->GCPhys, pRam->GCPhysLast, pRam->pvR3);
4641	if (RT_FAILURE(rc))
4642	return rc;
4643	}
4644
4645	return VINF_SUCCESS;
4646	}
4647
4648
4649	/**
4650	* The '.pgmmap' command.
4651	*
4652	* @returns VBox status.
4653	* @param pCmd Pointer to the command descriptor (as registered).
4654	* @param pCmdHlp Pointer to command helper functions.
4655	* @param pVM Pointer to the current VM (if any).
4656	* @param paArgs Pointer to (readonly) array of arguments.
4657	* @param cArgs Number of arguments in the array.
4658	*/
4659	static DECLCALLBACK(int) pgmR3CmdMap(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4660	{
4661	/*
4662	* Validate input.
4663	*/
4664	if (!pVM)
4665	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4666	if (!pVM->pgm.s.pMappingsR3)
4667	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no mappings are registered.\n");
4668
4669	/*
4670	* Print message about the fixedness of the mappings.
4671	*/
4672	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, pVM->pgm.s.fMappingsFixed ? "The mappings are FIXED.\n" : "The mappings are FLOATING.\n");
4673	if (RT_FAILURE(rc))
4674	return rc;
4675
4676	/*
4677	* Dump the ranges.
4678	*/
4679	PPGMMAPPING pCur;
4680	for (pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
4681	{
4682	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
4683	"%08x - %08x %s\n",
4684	pCur->GCPtr, pCur->GCPtrLast, pCur->pszDesc);
4685	if (RT_FAILURE(rc))
4686	return rc;
4687	}
4688
4689	return VINF_SUCCESS;
4690	}
4691
4692
4693	/**
4694	* The '.pgmsync' command.
4695	*
4696	* @returns VBox status.
4697	* @param pCmd Pointer to the command descriptor (as registered).
4698	* @param pCmdHlp Pointer to command helper functions.
4699	* @param pVM Pointer to the current VM (if any).
4700	* @param paArgs Pointer to (readonly) array of arguments.
4701	* @param cArgs Number of arguments in the array.
4702	*/
4703	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4704	{
4705	/*
4706	* Validate input.
4707	*/
4708	if (!pVM)
4709	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4710
4711	/*
4712	* Force page directory sync.
4713	*/
4714	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
4715
4716	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Forcing page directory sync.\n");
4717	if (RT_FAILURE(rc))
4718	return rc;
4719
4720	return VINF_SUCCESS;
4721	}
4722
4723
4724	#ifdef VBOX_STRICT
4725	/**
4726	* The '.pgmassertcr3' command.
4727	*
4728	* @returns VBox status.
4729	* @param pCmd Pointer to the command descriptor (as registered).
4730	* @param pCmdHlp Pointer to command helper functions.
4731	* @param pVM Pointer to the current VM (if any).
4732	* @param paArgs Pointer to (readonly) array of arguments.
4733	* @param cArgs Number of arguments in the array.
4734	*/
4735	static DECLCALLBACK(int) pgmR3CmdAssertCR3(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4736	{
4737	/*
4738	* Validate input.
4739	*/
4740	if (!pVM)
4741	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4742
4743	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Checking shadow CR3 page tables for consistency.\n");
4744	if (RT_FAILURE(rc))
4745	return rc;
4746
4747	PGMAssertCR3(pVM, CPUMGetGuestCR3(pVM), CPUMGetGuestCR4(pVM));
4748
4749	return VINF_SUCCESS;
4750	}
4751	#endif /* VBOX_STRICT */
4752
4753
4754	/**
4755	* The '.pgmsyncalways' command.
4756	*
4757	* @returns VBox status.
4758	* @param pCmd Pointer to the command descriptor (as registered).
4759	* @param pCmdHlp Pointer to command helper functions.
4760	* @param pVM Pointer to the current VM (if any).
4761	* @param paArgs Pointer to (readonly) array of arguments.
4762	* @param cArgs Number of arguments in the array.
4763	*/
4764	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4765	{
4766	/*
4767	* Validate input.
4768	*/
4769	if (!pVM)
4770	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4771
4772	/*
4773	* Force page directory sync.
4774	*/
4775	if (pVM->pgm.s.fSyncFlags & PGM_SYNC_ALWAYS)
4776	{
4777	ASMAtomicAndU32(&pVM->pgm.s.fSyncFlags, ~PGM_SYNC_ALWAYS);
4778	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Disabled permanent forced page directory syncing.\n");
4779	}
4780	else
4781	{
4782	ASMAtomicOrU32(&pVM->pgm.s.fSyncFlags, PGM_SYNC_ALWAYS);
4783	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
4784	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Enabled permanent forced page directory syncing.\n");
4785	}
4786	}
4787
4788	#endif /* VBOX_WITH_DEBUGGER */
4789
4790	/**
4791	* pvUser argument of the pgmR3CheckIntegrity*Node callbacks.
4792	*/
4793	typedef struct PGMCHECKINTARGS
4794	{
4795	bool fLeftToRight; /*< true: left-to-right; false: right-to-left. /
4796	PPGMPHYSHANDLER pPrevPhys;
4797	PPGMVIRTHANDLER pPrevVirt;
4798	PPGMPHYS2VIRTHANDLER pPrevPhys2Virt;
4799	PVM pVM;
4800	} PGMCHECKINTARGS, *PPGMCHECKINTARGS;
4801
4802	/**
4803	* Validate a node in the physical handler tree.
4804	*
4805	* @returns 0 on if ok, other wise 1.
4806	* @param pNode The handler node.
4807	* @param pvUser pVM.
4808	*/
4809	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
4810	{
4811	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
4812	PPGMPHYSHANDLER pCur = (PPGMPHYSHANDLER)pNode;
4813	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
4814	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGp-%RGp %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4815	AssertReleaseMsg( !pArgs->pPrevPhys
4816	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys->Core.KeyLast > pCur->Core.Key),
4817	("pPrevPhys=%p %RGp-%RGp %s\n"
4818	" pCur=%p %RGp-%RGp %s\n",
4819	pArgs->pPrevPhys, pArgs->pPrevPhys->Core.Key, pArgs->pPrevPhys->Core.KeyLast, pArgs->pPrevPhys->pszDesc,
4820	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4821	pArgs->pPrevPhys = pCur;
4822	return 0;
4823	}
4824
4825
4826	/**
4827	* Validate a node in the virtual handler tree.
4828	*
4829	* @returns 0 on if ok, other wise 1.
4830	* @param pNode The handler node.
4831	* @param pvUser pVM.
4832	*/
4833	static DECLCALLBACK(int) pgmR3CheckIntegrityVirtHandlerNode(PAVLROGCPTRNODECORE pNode, void *pvUser)
4834	{
4835	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
4836	PPGMVIRTHANDLER pCur = (PPGMVIRTHANDLER)pNode;
4837	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
4838	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGv-%RGv %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4839	AssertReleaseMsg( !pArgs->pPrevVirt
4840	\|\| (pArgs->fLeftToRight ? pArgs->pPrevVirt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevVirt->Core.KeyLast > pCur->Core.Key),
4841	("pPrevVirt=%p %RGv-%RGv %s\n"
4842	" pCur=%p %RGv-%RGv %s\n",
4843	pArgs->pPrevVirt, pArgs->pPrevVirt->Core.Key, pArgs->pPrevVirt->Core.KeyLast, pArgs->pPrevVirt->pszDesc,
4844	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4845	for (unsigned iPage = 0; iPage < pCur->cPages; iPage++)
4846	{
4847	AssertReleaseMsg(pCur->aPhysToVirt[iPage].offVirtHandler == -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage]),
4848	("pCur=%p %RGv-%RGv %s\n"
4849	"iPage=%d offVirtHandle=%#x expected %#x\n",
4850	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc,
4851	iPage, pCur->aPhysToVirt[iPage].offVirtHandler, -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage])));
4852	}
4853	pArgs->pPrevVirt = pCur;
4854	return 0;
4855	}
4856
4857
4858	/**
4859	* Validate a node in the virtual handler tree.
4860	*
4861	* @returns 0 on if ok, other wise 1.
4862	* @param pNode The handler node.
4863	* @param pvUser pVM.
4864	*/
4865	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysToVirtHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
4866	{
4867	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
4868	PPGMPHYS2VIRTHANDLER pCur = (PPGMPHYS2VIRTHANDLER)pNode;
4869	AssertReleaseMsgReturn(!((uintptr_t)pCur & 3), ("\n"), 1);
4870	AssertReleaseMsgReturn(!(pCur->offVirtHandler & 3), ("\n"), 1);
4871	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGp-%RGp\n", pCur, pCur->Core.Key, pCur->Core.KeyLast));
4872	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
4873	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
4874	("pPrevPhys2Virt=%p %RGp-%RGp\n"
4875	" pCur=%p %RGp-%RGp\n",
4876	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
4877	pCur, pCur->Core.Key, pCur->Core.KeyLast));
4878	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
4879	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
4880	("pPrevPhys2Virt=%p %RGp-%RGp\n"
4881	" pCur=%p %RGp-%RGp\n",
4882	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
4883	pCur, pCur->Core.Key, pCur->Core.KeyLast));
4884	AssertReleaseMsg((pCur->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD),
4885	("pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4886	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
4887	if (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
4888	{
4889	PPGMPHYS2VIRTHANDLER pCur2 = pCur;
4890	for (;;)
4891	{
4892	pCur2 = (PPGMPHYS2VIRTHANDLER)((intptr_t)pCur + (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
4893	AssertReleaseMsg(pCur2 != pCur,
4894	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4895	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
4896	AssertReleaseMsg((pCur2->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == PGMPHYS2VIRTHANDLER_IN_TREE,
4897	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
4898	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4899	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
4900	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
4901	AssertReleaseMsg((pCur2->Core.Key ^ pCur->Core.Key) < PAGE_SIZE,
4902	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
4903	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4904	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
4905	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
4906	AssertReleaseMsg((pCur2->Core.KeyLast ^ pCur->Core.KeyLast) < PAGE_SIZE,
4907	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
4908	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4909	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
4910	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
4911	if (!(pCur2->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
4912	break;
4913	}
4914	}
4915
4916	pArgs->pPrevPhys2Virt = pCur;
4917	return 0;
4918	}
4919
4920
4921	/**
4922	* Perform an integrity check on the PGM component.
4923	*
4924	* @returns VINF_SUCCESS if everything is fine.
4925	* @returns VBox error status after asserting on integrity breach.
4926	* @param pVM The VM handle.
4927	*/
4928	VMMR3DECL(int) PGMR3CheckIntegrity(PVM pVM)
4929	{
4930	AssertReleaseReturn(pVM->pgm.s.offVM, VERR_INTERNAL_ERROR);
4931
4932	/*
4933	* Check the trees.
4934	*/
4935	int cErrors = 0;
4936	const static PGMCHECKINTARGS s_LeftToRight = { true, NULL, NULL, NULL, pVM };
4937	const static PGMCHECKINTARGS s_RightToLeft = { false, NULL, NULL, NULL, pVM };
4938	PGMCHECKINTARGS Args = s_LeftToRight;
4939	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, true, pgmR3CheckIntegrityPhysHandlerNode, &Args);
4940	Args = s_RightToLeft;
4941	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, false, pgmR3CheckIntegrityPhysHandlerNode, &Args);
4942	Args = s_LeftToRight;
4943	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->VirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
4944	Args = s_RightToLeft;
4945	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->VirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
4946	Args = s_LeftToRight;
4947	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->HyperVirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
4948	Args = s_RightToLeft;
4949	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->HyperVirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
4950	Args = s_LeftToRight;
4951	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysToVirtHandlers, true, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
4952	Args = s_RightToLeft;
4953	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysToVirtHandlers, false, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
4954
4955	return !cErrors ? VINF_SUCCESS : VERR_INTERNAL_ERROR;
4956	}
4957
4958

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