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1	/* $Id: PGM.cpp 7677 2008-04-01 12:20:28Z vboxsync $ */
2	/** @file
3	* PGM - Page Manager and Monitor. (Mixing stuff here, not good?)
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 innotek GmbH
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/** @page pg_pgm PGM - The Page Manager and Monitor
20	*
21	*
22	*
23	* @section sec_pgm_modes Paging Modes
24	*
25	* There are three memory contexts: Host Context (HC), Guest Context (GC)
26	* and intermediate context. When talking about paging HC can also be refered to
27	* as "host paging", and GC refered to as "shadow paging".
28	*
29	* We define three basic paging modes: 32-bit, PAE and AMD64. The host paging mode
30	* is defined by the host operating system. The mode used in the shadow paging mode
31	* depends on the host paging mode and what the mode the guest is currently in. The
32	* following relation between the two is defined:
33	*
34	* @verbatim
35	Host > 32-bit \| PAE \| AMD64 \|
36	Guest \| \| \| \|
37	==v================================
38	32-bit 32-bit PAE PAE
39	-------\|--------\|--------\|--------\|
40	PAE PAE PAE PAE
41	-------\|--------\|--------\|--------\|
42	AMD64 AMD64 AMD64 AMD64
43	-------\|--------\|--------\|--------\| @endverbatim
44	*
45	* All configuration except those in the diagonal (upper left) are expected to
46	* require special effort from the switcher (i.e. a bit slower).
47	*
48	*
49	*
50	*
51	* @section sec_pgm_shw The Shadow Memory Context
52	*
53	*
54	* [..]
55	*
56	* Because of guest context mappings requires PDPTR and PML4 entries to allow
57	* writing on AMD64, the two upper levels will have fixed flags whatever the
58	* guest is thinking of using there. So, when shadowing the PD level we will
59	* calculate the effective flags of PD and all the higher levels. In legacy
60	* PAE mode this only applies to the PWT and PCD bits (the rest are
61	* ignored/reserved/MBZ). We will ignore those bits for the present.
62	*
63	*
64	*
65	* @section sec_pgm_int The Intermediate Memory Context
66	*
67	* The world switch goes thru an intermediate memory context which purpose it is
68	* to provide different mappings of the switcher code. All guest mappings are also
69	* present in this context.
70	*
71	* The switcher code is mapped at the same location as on the host, at an
72	* identity mapped location (physical equals virtual address), and at the
73	* hypervisor location.
74	*
75	* PGM maintain page tables for 32-bit, PAE and AMD64 paging modes. This
76	* simplifies switching guest CPU mode and consistency at the cost of more
77	* code to do the work. All memory use for those page tables is located below
78	* 4GB (this includes page tables for guest context mappings).
79	*
80	*
81	* @subsection subsec_pgm_int_gc Guest Context Mappings
82	*
83	* During assignment and relocation of a guest context mapping the intermediate
84	* memory context is used to verify the new location.
85	*
86	* Guest context mappings are currently restricted to below 4GB, for reasons
87	* of simplicity. This may change when we implement AMD64 support.
88	*
89	*
90	*
91	*
92	* @section sec_pgm_misc Misc
93	*
94	* @subsection subsec_pgm_misc_diff Differences Between Legacy PAE and Long Mode PAE
95	*
96	* The differences between legacy PAE and long mode PAE are:
97	* -# PDPE bits 1, 2, 5 and 6 are defined differently. In leagcy mode they are
98	* all marked down as must-be-zero, while in long mode 1, 2 and 5 have the
99	* usual meanings while 6 is ignored (AMD). This means that upon switching to
100	* legacy PAE mode we'll have to clear these bits and when going to long mode
101	* they must be set. This applies to both intermediate and shadow contexts,
102	* however we don't need to do it for the intermediate one since we're
103	* executing with CR0.WP at that time.
104	* -# CR3 allows a 32-byte aligned address in legacy mode, while in long mode
105	* a page aligned one is required.
106	*
107	*
108	* @section sec_pgm_handlers Access Handlers
109	*
110	* Placeholder.
111	*
112	*
113	* @subsection sec_pgm_handlers_virt Virtual Access Handlers
114	*
115	* Placeholder.
116	*
117	*
118	* @subsection sec_pgm_handlers_virt Virtual Access Handlers
119	*
120	* We currently implement three types of virtual access handlers: ALL, WRITE
121	* and HYPERVISOR (WRITE). See PGMVIRTHANDLERTYPE for some more details.
122	*
123	* The HYPERVISOR access handlers is kept in a separate tree since it doesn't apply
124	* to physical pages (PGMTREES::HyperVirtHandlers) and only needs to be consulted in
125	* a special \#PF case. The ALL and WRITE are in the PGMTREES::VirtHandlers tree, the
126	* rest of this section is going to be about these handlers.
127	*
128	* We'll go thru the life cycle of a handler and try make sense of it all, don't know
129	* how successfull this is gonna be...
130	*
131	* 1. A handler is registered thru the PGMR3HandlerVirtualRegister and
132	* PGMHandlerVirtualRegisterEx APIs. We check for conflicting virtual handlers
133	* and create a new node that is inserted into the AVL tree (range key). Then
134	* a full PGM resync is flagged (clear pool, sync cr3, update virtual bit of PGMPAGE).
135	*
136	* 2. The following PGMSyncCR3/SyncCR3 operation will first make invoke HandlerVirtualUpdate.
137	*
138	* 2a. HandlerVirtualUpdate will will lookup all the pages covered by virtual handlers
139	* via the current guest CR3 and update the physical page -> virtual handler
140	* translation. Needless to say, this doesn't exactly scale very well. If any changes
141	* are detected, it will flag a virtual bit update just like we did on registration.
142	* PGMPHYS pages with changes will have their virtual handler state reset to NONE.
143	*
144	* 2b. The virtual bit update process will iterate all the pages covered by all the
145	* virtual handlers and update the PGMPAGE virtual handler state to the max of all
146	* virtual handlers on that page.
147	*
148	* 2c. Back in SyncCR3 we will now flush the entire shadow page cache to make sure
149	* we don't miss any alias mappings of the monitored pages.
150	*
151	* 2d. SyncCR3 will then proceed with syncing the CR3 table.
152	*
153	* 3. \#PF(np,read) on a page in the range. This will cause it to be synced
154	* read-only and resumed if it's a WRITE handler. If it's an ALL handler we
155	* will call the handlers like in the next step. If the physical mapping has
156	* changed we will - some time in the future - perform a handler callback
157	* (optional) and update the physical -> virtual handler cache.
158	*
159	* 4. \#PF(,write) on a page in the range. This will cause the handler to
160	* be invoked.
161	*
162	* 5. The guest invalidates the page and changes the physical backing or
163	* unmaps it. This should cause the invalidation callback to be invoked
164	* (it might not yet be 100% perfect). Exactly what happens next... is
165	* this where we mess up and end up out of sync for a while?
166	*
167	* 6. The handler is deregistered by the client via PGMHandlerVirtualDeregister.
168	* We will then set all PGMPAGEs in the physical -> virtual handler cache for
169	* this handler to NONE and trigger a full PGM resync (basically the same
170	* as int step 1). Which means 2 is executed again.
171	*
172	*
173	* @subsubsection sub_sec_pgm_handler_virt_todo TODOs
174	*
175	* There is a bunch of things that needs to be done to make the virtual handlers
176	* work 100% correctly and work more efficiently.
177	*
178	* The first bit hasn't been implemented yet because it's going to slow the
179	* whole mess down even more, and besides it seems to be working reliably for
180	* our current uses. OTOH, some of the optimizations might end up more or less
181	* implementing the missing bits, so we'll see.
182	*
183	* On the optimization side, the first thing to do is to try avoid unnecessary
184	* cache flushing. Then try team up with the shadowing code to track changes
185	* in mappings by means of access to them (shadow in), updates to shadows pages,
186	* invlpg, and shadow PT discarding (perhaps).
187	*
188	* Some idea that have popped up for optimization for current and new features:
189	* - bitmap indicating where there are virtual handlers installed.
190	* (4KB => 220 pages, page 212 => covers 32-bit address space 1:1!)
191	* - Further optimize this by min/max (needs min/max avl getters).
192	* - Shadow page table entry bit (if any left)?
193	*
194	*/
195
196
197	/** @page pg_pgmPhys PGMPhys - Physical Guest Memory Management.
198	*
199	*
200	* Objectives:
201	* - Guest RAM over-commitment using memory ballooning,
202	* zero pages and general page sharing.
203	* - Moving or mirroring a VM onto a different physical machine.
204	*
205	*
206	* @subsection subsec_pgmPhys_Definitions Definitions
207	*
208	* Allocation chunk - A RTR0MemObjAllocPhysNC object and the tracking
209	* machinery assoicated with it.
210	*
211	*
212	*
213	*
214	* @subsection subsec_pgmPhys_AllocPage Allocating a page.
215	*
216	* Initially we map all guest memory to the (per VM) zero page, which
217	* means that none of the read functions will cause pages to be allocated.
218	*
219	* Exception, access bit in page tables that have been shared. This must
220	* be handled, but we must also make sure PGMGst*Modify doesn't make
221	* unnecessary modifications.
222	*
223	* Allocation points:
224	* - PGMPhysWriteGCPhys and PGMPhysWrite.
225	* - Replacing a zero page mapping at \#PF.
226	* - Replacing a shared page mapping at \#PF.
227	* - ROM registration (currently MMR3RomRegister).
228	* - VM restore (pgmR3Load).
229	*
230	* For the first three it would make sense to keep a few pages handy
231	* until we've reached the max memory commitment for the VM.
232	*
233	* For the ROM registration, we know exactly how many pages we need
234	* and will request these from ring-0. For restore, we will save
235	* the number of non-zero pages in the saved state and allocate
236	* them up front. This would allow the ring-0 component to refuse
237	* the request if the isn't sufficient memory available for VM use.
238	*
239	* Btw. for both ROM and restore allocations we won't be requiring
240	* zeroed pages as they are going to be filled instantly.
241	*
242	*
243	* @subsection subsec_pgmPhys_FreePage Freeing a page
244	*
245	* There are a few points where a page can be freed:
246	* - After being replaced by the zero page.
247	* - After being replaced by a shared page.
248	* - After being ballooned by the guest additions.
249	* - At reset.
250	* - At restore.
251	*
252	* When freeing one or more pages they will be returned to the ring-0
253	* component and replaced by the zero page.
254	*
255	* The reasoning for clearing out all the pages on reset is that it will
256	* return us to the exact same state as on power on, and may thereby help
257	* us reduce the memory load on the system. Further it might have a
258	* (temporary) positive influence on memory fragmentation (@see subsec_pgmPhys_Fragmentation).
259	*
260	* On restore, as mention under the allocation topic, pages should be
261	* freed / allocated depending on how many is actually required by the
262	* new VM state. The simplest approach is to do like on reset, and free
263	* all non-ROM pages and then allocate what we need.
264	*
265	* A measure to prevent some fragmentation, would be to let each allocation
266	* chunk have some affinity towards the VM having allocated the most pages
267	* from it. Also, try make sure to allocate from allocation chunks that
268	* are almost full. Admittedly, both these measures might work counter to
269	* our intentions and its probably not worth putting a lot of effort,
270	* cpu time or memory into this.
271	*
272	*
273	* @subsection subsec_pgmPhys_SharePage Sharing a page
274	*
275	* The basic idea is that there there will be a idle priority kernel
276	* thread walking the non-shared VM pages hashing them and looking for
277	* pages with the same checksum. If such pages are found, it will compare
278	* them byte-by-byte to see if they actually are identical. If found to be
279	* identical it will allocate a shared page, copy the content, check that
280	* the page didn't change while doing this, and finally request both the
281	* VMs to use the shared page instead. If the page is all zeros (special
282	* checksum and byte-by-byte check) it will request the VM that owns it
283	* to replace it with the zero page.
284	*
285	* To make this efficient, we will have to make sure not to try share a page
286	* that will change its contents soon. This part requires the most work.
287	* A simple idea would be to request the VM to write monitor the page for
288	* a while to make sure it isn't modified any time soon. Also, it may
289	* make sense to skip pages that are being write monitored since this
290	* information is readily available to the thread if it works on the
291	* per-VM guest memory structures (presently called PGMRAMRANGE).
292	*
293	*
294	* @subsection subsec_pgmPhys_Fragmentation Fragmentation Concerns and Counter Measures
295	*
296	* The pages are organized in allocation chunks in ring-0, this is a necessity
297	* if we wish to have an OS agnostic approach to this whole thing. (On Linux we
298	* could easily work on a page-by-page basis if we liked. Whether this is possible
299	* or efficient on NT I don't quite know.) Fragmentation within these chunks may
300	* become a problem as part of the idea here is that we wish to return memory to
301	* the host system.
302	*
303	* For instance, starting two VMs at the same time, they will both allocate the
304	* guest memory on-demand and if permitted their page allocations will be
305	* intermixed. Shut down one of the two VMs and it will be difficult to return
306	* any memory to the host system because the page allocation for the two VMs are
307	* mixed up in the same allocation chunks.
308	*
309	* To further complicate matters, when pages are freed because they have been
310	* ballooned or become shared/zero the whole idea is that the page is supposed
311	* to be reused by another VM or returned to the host system. This will cause
312	* allocation chunks to contain pages belonging to different VMs and prevent
313	* returning memory to the host when one of those VM shuts down.
314	*
315	* The only way to really deal with this problem is to move pages. This can
316	* either be done at VM shutdown and or by the idle priority worker thread
317	* that will be responsible for finding sharable/zero pages. The mechanisms
318	* involved for coercing a VM to move a page (or to do it for it) will be
319	* the same as when telling it to share/zero a page.
320	*
321	*
322	* @subsection subsec_pgmPhys_Tracking Tracking Structures And Their Cost
323	*
324	* There's a difficult balance between keeping the per-page tracking structures
325	* (global and guest page) easy to use and keeping them from eating too much
326	* memory. We have limited virtual memory resources available when operating in
327	* 32-bit kernel space (on 64-bit there'll it's quite a different story). The
328	* tracking structures will be attemted designed such that we can deal with up
329	* to 32GB of memory on a 32-bit system and essentially unlimited on 64-bit ones.
330	*
331	*
332	* @subsubsection subsubsec_pgmPhys_Tracking_Kernel Kernel Space
333	*
334	* @see pg_GMM
335	*
336	* @subsubsection subsubsec_pgmPhys_Tracking_PerVM Per-VM
337	*
338	* Fixed info is the physical address of the page (HCPhys) and the page id
339	* (described above). Theoretically we'll need 48(-12) bits for the HCPhys part.
340	* Today we've restricting ourselves to 40(-12) bits because this is the current
341	* restrictions of all AMD64 implementations (I think Barcelona will up this
342	* to 48(-12) bits, not that it really matters) and I needed the bits for
343	* tracking mappings of a page. 48-12 = 36. That leaves 28 bits, which means a
344	* decent range for the page id: 2^(28+12) = 1024TB.
345	*
346	* In additions to these, we'll have to keep maintaining the page flags as we
347	* currently do. Although it wouldn't harm to optimize these quite a bit, like
348	* for instance the ROM shouldn't depend on having a write handler installed
349	* in order for it to become read-only. A RO/RW bit should be considered so
350	* that the page syncing code doesn't have to mess about checking multiple
351	* flag combinations (ROM \|\| RW handler \|\| write monitored) in order to
352	* figure out how to setup a shadow PTE. But this of course, is second
353	* priority at present. Current this requires 12 bits, but could probably
354	* be optimized to ~8.
355	*
356	* Then there's the 24 bits used to track which shadow page tables are
357	* currently mapping a page for the purpose of speeding up physical
358	* access handlers, and thereby the page pool cache. More bit for this
359	* purpose wouldn't hurt IIRC.
360	*
361	* Then there is a new bit in which we need to record what kind of page
362	* this is, shared, zero, normal or write-monitored-normal. This'll
363	* require 2 bits. One bit might be needed for indicating whether a
364	* write monitored page has been written to. And yet another one or
365	* two for tracking migration status. 3-4 bits total then.
366	*
367	* Whatever is left will can be used to record the sharabilitiy of a
368	* page. The page checksum will not be stored in the per-VM table as
369	* the idle thread will not be permitted to do modifications to it.
370	* It will instead have to keep its own working set of potentially
371	* shareable pages and their check sums and stuff.
372	*
373	* For the present we'll keep the current packing of the
374	* PGMRAMRANGE::aHCPhys to keep the changes simple, only of course,
375	* we'll have to change it to a struct with a total of 128-bits at
376	* our disposal.
377	*
378	* The initial layout will be like this:
379	* @verbatim
380	RTHCPHYS HCPhys; The current stuff.
381	63:40 Current shadow PT tracking stuff.
382	39:12 The physical page frame number.
383	11:0 The current flags.
384	uint32_t u28PageId : 28; The page id.
385	uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
386	uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
387	uint32_t u1Reserved : 1; Reserved for later.
388	uint32_t u32Reserved; Reserved for later, mostly sharing stats.
389	@endverbatim
390	*
391	* The final layout will be something like this:
392	* @verbatim
393	RTHCPHYS HCPhys; The current stuff.
394	63:48 High page id (12+).
395	47:12 The physical page frame number.
396	11:0 Low page id.
397	uint32_t fReadOnly : 1; Whether it's readonly page (rom or monitored in some way).
398	uint32_t u3Type : 3; The page type {RESERVED, MMIO, MMIO2, ROM, shadowed ROM, RAM}.
399	uint32_t u2PhysMon : 2; Physical access handler type {none, read, write, all}.
400	uint32_t u2VirtMon : 2; Virtual access handler type {none, read, write, all}..
401	uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
402	uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
403	uint32_t u20Reserved : 20; Reserved for later, mostly sharing stats.
404	uint32_t u32Tracking; The shadow PT tracking stuff, roughly.
405	@endverbatim
406	*
407	* Cost wise, this means we'll double the cost for guest memory. There isn't anyway
408	* around that I'm afraid. It means that the cost of dealing out 32GB of memory
409	* to one or more VMs is: (32GB >> PAGE_SHIFT) * 16 bytes, or 128MBs. Or another
410	* example, the VM heap cost when assigning 1GB to a VM will be: 4MB.
411	*
412	* A couple of cost examples for the total cost per-VM + kernel.
413	* 32-bit Windows and 32-bit linux:
414	* 1GB guest ram, 256K pages: 4MB + 2MB(+) = 6MB
415	* 4GB guest ram, 1M pages: 16MB + 8MB(+) = 24MB
416	* 32GB guest ram, 8M pages: 128MB + 64MB(+) = 192MB
417	* 64-bit Windows and 64-bit linux:
418	* 1GB guest ram, 256K pages: 4MB + 3MB(+) = 7MB
419	* 4GB guest ram, 1M pages: 16MB + 12MB(+) = 28MB
420	* 32GB guest ram, 8M pages: 128MB + 96MB(+) = 224MB
421	*
422	* UPDATE - 2007-09-27:
423	* Will need a ballooned flag/state too because we cannot
424	* trust the guest 100% and reporting the same page as ballooned more
425	* than once will put the GMM off balance.
426	*
427	*
428	* @subsection subsec_pgmPhys_Serializing Serializing Access
429	*
430	* Initially, we'll try a simple scheme:
431	*
432	* - The per-VM RAM tracking structures (PGMRAMRANGE) is only modified
433	* by the EMT thread of that VM while in the pgm critsect.
434	* - Other threads in the VM process that needs to make reliable use of
435	* the per-VM RAM tracking structures will enter the critsect.
436	* - No process external thread or kernel thread will ever try enter
437	* the pgm critical section, as that just won't work.
438	* - The idle thread (and similar threads) doesn't not need 100% reliable
439	* data when performing it tasks as the EMT thread will be the one to
440	* do the actual changes later anyway. So, as long as it only accesses
441	* the main ram range, it can do so by somehow preventing the VM from
442	* being destroyed while it works on it...
443	*
444	* - The over-commitment management, including the allocating/freeing
445	* chunks, is serialized by a ring-0 mutex lock (a fast one since the
446	* more mundane mutex implementation is broken on Linux).
447	* - A separeate mutex is protecting the set of allocation chunks so
448	* that pages can be shared or/and freed up while some other VM is
449	* allocating more chunks. This mutex can be take from under the other
450	* one, but not the otherway around.
451	*
452	*
453	* @subsection subsec_pgmPhys_Request VM Request interface
454	*
455	* When in ring-0 it will become necessary to send requests to a VM so it can
456	* for instance move a page while defragmenting during VM destroy. The idle
457	* thread will make use of this interface to request VMs to setup shared
458	* pages and to perform write monitoring of pages.
459	*
460	* I would propose an interface similar to the current VMReq interface, similar
461	* in that it doesn't require locking and that the one sending the request may
462	* wait for completion if it wishes to. This shouldn't be very difficult to
463	* realize.
464	*
465	* The requests themselves are also pretty simple. They are basically:
466	* -# Check that some precondition is still true.
467	* -# Do the update.
468	* -# Update all shadow page tables involved with the page.
469	*
470	* The 3rd step is identical to what we're already doing when updating a
471	* physical handler, see pgmHandlerPhysicalSetRamFlagsAndFlushShadowPTs.
472	*
473	*
474	*
475	* @section sec_pgmPhys_MappingCaches Mapping Caches
476	*
477	* In order to be able to map in and out memory and to be able to support
478	* guest with more RAM than we've got virtual address space, we'll employing
479	* a mapping cache. There is already a tiny one for GC (see PGMGCDynMapGCPageEx)
480	* and we'll create a similar one for ring-0 unless we decide to setup a dedicate
481	* memory context for the HWACCM execution.
482	*
483	*
484	* @subsection subsec_pgmPhys_MappingCaches_R3 Ring-3
485	*
486	* We've considered implementing the ring-3 mapping cache page based but found
487	* that this was bother some when one had to take into account TLBs+SMP and
488	* portability (missing the necessary APIs on several platforms). There were
489	* also some performance concerns with this approach which hadn't quite been
490	* worked out.
491	*
492	* Instead, we'll be mapping allocation chunks into the VM process. This simplifies
493	* matters greatly quite a bit since we don't need to invent any new ring-0 stuff,
494	* only some minor RTR0MEMOBJ mapping stuff. The main concern here is that mapping
495	* compared to the previous idea is that mapping or unmapping a 1MB chunk is more
496	* costly than a single page, although how much more costly is uncertain. We'll
497	* try address this by using a very big cache, preferably bigger than the actual
498	* VM RAM size if possible. The current VM RAM sizes should give some idea for
499	* 32-bit boxes, while on 64-bit we can probably get away with employing an
500	* unlimited cache.
501	*
502	* The cache have to parts, as already indicated, the ring-3 side and the
503	* ring-0 side.
504	*
505	* The ring-0 will be tied to the page allocator since it will operate on the
506	* memory objects it contains. It will therefore require the first ring-0 mutex
507	* discussed in @ref subsec_pgmPhys_Serializing. We
508	* some double house keeping wrt to who has mapped what I think, since both
509	* VMMR0.r0 and RTR0MemObj will keep track of mapping relataions
510	*
511	* The ring-3 part will be protected by the pgm critsect. For simplicity, we'll
512	* require anyone that desires to do changes to the mapping cache to do that
513	* from within this critsect. Alternatively, we could employ a separate critsect
514	* for serializing changes to the mapping cache as this would reduce potential
515	* contention with other threads accessing mappings unrelated to the changes
516	* that are in process. We can see about this later, contention will show
517	* up in the statistics anyway, so it'll be simple to tell.
518	*
519	* The organization of the ring-3 part will be very much like how the allocation
520	* chunks are organized in ring-0, that is in an AVL tree by chunk id. To avoid
521	* having to walk the tree all the time, we'll have a couple of lookaside entries
522	* like in we do for I/O ports and MMIO in IOM.
523	*
524	* The simplified flow of a PGMPhysRead/Write function:
525	* -# Enter the PGM critsect.
526	* -# Lookup GCPhys in the ram ranges and get the Page ID.
527	* -# Calc the Allocation Chunk ID from the Page ID.
528	* -# Check the lookaside entries and then the AVL tree for the Chunk ID.
529	* If not found in cache:
530	* -# Call ring-0 and request it to be mapped and supply
531	* a chunk to be unmapped if the cache is maxed out already.
532	* -# Insert the new mapping into the AVL tree (id + R3 address).
533	* -# Update the relevant lookaside entry and return the mapping address.
534	* -# Do the read/write according to monitoring flags and everything.
535	* -# Leave the critsect.
536	*
537	*
538	* @section sec_pgmPhys_Fallback Fallback
539	*
540	* Current all the "second tier" hosts will not support the RTR0MemObjAllocPhysNC
541	* API and thus require a fallback.
542	*
543	* So, when RTR0MemObjAllocPhysNC returns VERR_NOT_SUPPORTED the page allocator
544	* will return to the ring-3 caller (and later ring-0) and asking it to seed
545	* the page allocator with some fresh pages (VERR_GMM_SEED_ME). Ring-3 will
546	* then perform an SUPPageAlloc(cbChunk >> PAGE_SHIFT) call and make a
547	* "SeededAllocPages" call to ring-0.
548	*
549	* The first time ring-0 sees the VERR_NOT_SUPPORTED failure it will disable
550	* all page sharing (zero page detection will continue). It will also force
551	* all allocations to come from the VM which seeded the page. Both these
552	* measures are taken to make sure that there will never be any need for
553	* mapping anything into ring-3 - everything will be mapped already.
554	*
555	* Whether we'll continue to use the current MM locked memory management
556	* for this I don't quite know (I'd prefer not to and just ditch that all
557	* togther), we'll see what's simplest to do.
558	*
559	*
560	*
561	* @section sec_pgmPhys_Changes Changes
562	*
563	* Breakdown of the changes involved?
564	*/
565
566
567	/** Saved state data unit version. */
568	#define PGM_SAVED_STATE_VERSION 6
569
570	/*******************************************************************************
571	* Header Files *
572	*******************************************************************************/
573	#define LOG_GROUP LOG_GROUP_PGM
574	#include <VBox/dbgf.h>
575	#include <VBox/pgm.h>
576	#include <VBox/cpum.h>
577	#include <VBox/iom.h>
578	#include <VBox/sup.h>
579	#include <VBox/mm.h>
580	#include <VBox/em.h>
581	#include <VBox/stam.h>
582	#include <VBox/rem.h>
583	#include <VBox/dbgf.h>
584	#include <VBox/rem.h>
585	#include <VBox/selm.h>
586	#include <VBox/ssm.h>
587	#include "PGMInternal.h"
588	#include <VBox/vm.h>
589	#include <VBox/dbg.h>
590	#include <VBox/hwaccm.h>
591
592	#include <iprt/assert.h>
593	#include <iprt/alloc.h>
594	#include <iprt/asm.h>
595	#include <iprt/thread.h>
596	#include <iprt/string.h>
597	#include <VBox/param.h>
598	#include <VBox/err.h>
599
600
601
602	/*******************************************************************************
603	* Internal Functions *
604	*******************************************************************************/
605	static int pgmR3InitPaging(PVM pVM);
606	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
607	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
608	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
609	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser);
610	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
611	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
612	#ifdef VBOX_STRICT
613	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser);
614	#endif
615	static DECLCALLBACK(int) pgmR3Save(PVM pVM, PSSMHANDLE pSSM);
616	static DECLCALLBACK(int) pgmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version);
617	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0);
618	static void pgmR3ModeDataSwitch(PVM pVM, PGMMODE enmShw, PGMMODE enmGst);
619	static PGMMODE pgmR3CalcShadowMode(PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher);
620
621	#ifdef VBOX_WITH_STATISTICS
622	static void pgmR3InitStats(PVM pVM);
623	#endif
624
625	#ifdef VBOX_WITH_DEBUGGER
626	/** @todo all but the two last commands must be converted to 'info'. */
627	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
628	static DECLCALLBACK(int) pgmR3CmdMap(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
629	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
630	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
631	#endif
632
633
634	/*******************************************************************************
635	* Global Variables *
636	*******************************************************************************/
637	#ifdef VBOX_WITH_DEBUGGER
638	/** Command descriptors. */
639	static const DBGCCMD g_aCmds[] =
640	{
641	/* pszCmd, cArgsMin, cArgsMax, paArgDesc, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
642	{ "pgmram", 0, 0, NULL, 0, NULL, 0, pgmR3CmdRam, "", "Display the ram ranges." },
643	{ "pgmmap", 0, 0, NULL, 0, NULL, 0, pgmR3CmdMap, "", "Display the mapping ranges." },
644	{ "pgmsync", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSync, "", "Sync the CR3 page." },
645	{ "pgmsyncalways", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSyncAlways, "", "Toggle permanent CR3 syncing." },
646	};
647	#endif
648
649
650
651
652	#if 1/// @todo ndef RT_ARCH_AMD64
653	/*
654	* Shadow - 32-bit mode
655	*/
656	#define PGM_SHW_TYPE PGM_TYPE_32BIT
657	#define PGM_SHW_NAME(name) PGM_SHW_NAME_32BIT(name)
658	#define PGM_SHW_NAME_GC_STR(name) PGM_SHW_NAME_GC_32BIT_STR(name)
659	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_32BIT_STR(name)
660	#include "PGMShw.h"
661
662	/* Guest - real mode */
663	#define PGM_GST_TYPE PGM_TYPE_REAL
664	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
665	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_REAL_STR(name)
666	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
667	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_REAL(name)
668	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_32BIT_REAL_STR(name)
669	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_REAL_STR(name)
670	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
671	#include "PGMGst.h"
672	#include "PGMBth.h"
673	#undef BTH_PGMPOOLKIND_PT_FOR_PT
674	#undef PGM_BTH_NAME
675	#undef PGM_BTH_NAME_GC_STR
676	#undef PGM_BTH_NAME_R0_STR
677	#undef PGM_GST_TYPE
678	#undef PGM_GST_NAME
679	#undef PGM_GST_NAME_GC_STR
680	#undef PGM_GST_NAME_R0_STR
681
682	/* Guest - protected mode */
683	#define PGM_GST_TYPE PGM_TYPE_PROT
684	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
685	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_PROT_STR(name)
686	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
687	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_PROT(name)
688	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_32BIT_PROT_STR(name)
689	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_PROT_STR(name)
690	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
691	#include "PGMGst.h"
692	#include "PGMBth.h"
693	#undef BTH_PGMPOOLKIND_PT_FOR_PT
694	#undef PGM_BTH_NAME
695	#undef PGM_BTH_NAME_GC_STR
696	#undef PGM_BTH_NAME_R0_STR
697	#undef PGM_GST_TYPE
698	#undef PGM_GST_NAME
699	#undef PGM_GST_NAME_GC_STR
700	#undef PGM_GST_NAME_R0_STR
701
702	/* Guest - 32-bit mode */
703	#define PGM_GST_TYPE PGM_TYPE_32BIT
704	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
705	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_32BIT_STR(name)
706	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
707	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_32BIT(name)
708	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_32BIT_32BIT_STR(name)
709	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_32BIT_STR(name)
710	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT
711	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB
712	#include "PGMGst.h"
713	#include "PGMBth.h"
714	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
715	#undef BTH_PGMPOOLKIND_PT_FOR_PT
716	#undef PGM_BTH_NAME
717	#undef PGM_BTH_NAME_GC_STR
718	#undef PGM_BTH_NAME_R0_STR
719	#undef PGM_GST_TYPE
720	#undef PGM_GST_NAME
721	#undef PGM_GST_NAME_GC_STR
722	#undef PGM_GST_NAME_R0_STR
723
724	#undef PGM_SHW_TYPE
725	#undef PGM_SHW_NAME
726	#undef PGM_SHW_NAME_GC_STR
727	#undef PGM_SHW_NAME_R0_STR
728	#endif /* !RT_ARCH_AMD64 */
729
730
731	/*
732	* Shadow - PAE mode
733	*/
734	#define PGM_SHW_TYPE PGM_TYPE_PAE
735	#define PGM_SHW_NAME(name) PGM_SHW_NAME_PAE(name)
736	#define PGM_SHW_NAME_GC_STR(name) PGM_SHW_NAME_GC_PAE_STR(name)
737	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_PAE_STR(name)
738	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
739	#include "PGMShw.h"
740
741	/* Guest - real mode */
742	#define PGM_GST_TYPE PGM_TYPE_REAL
743	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
744	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_REAL_STR(name)
745	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
746	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
747	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_PAE_REAL_STR(name)
748	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_REAL_STR(name)
749	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
750	#include "PGMBth.h"
751	#undef BTH_PGMPOOLKIND_PT_FOR_PT
752	#undef PGM_BTH_NAME
753	#undef PGM_BTH_NAME_GC_STR
754	#undef PGM_BTH_NAME_R0_STR
755	#undef PGM_GST_TYPE
756	#undef PGM_GST_NAME
757	#undef PGM_GST_NAME_GC_STR
758	#undef PGM_GST_NAME_R0_STR
759
760	/* Guest - protected mode */
761	#define PGM_GST_TYPE PGM_TYPE_PROT
762	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
763	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_PROT_STR(name)
764	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
765	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PROT(name)
766	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_PAE_PROT_STR(name)
767	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PROT_STR(name)
768	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
769	#include "PGMBth.h"
770	#undef BTH_PGMPOOLKIND_PT_FOR_PT
771	#undef PGM_BTH_NAME
772	#undef PGM_BTH_NAME_GC_STR
773	#undef PGM_BTH_NAME_R0_STR
774	#undef PGM_GST_TYPE
775	#undef PGM_GST_NAME
776	#undef PGM_GST_NAME_GC_STR
777	#undef PGM_GST_NAME_R0_STR
778
779	/* Guest - 32-bit mode */
780	#define PGM_GST_TYPE PGM_TYPE_32BIT
781	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
782	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_32BIT_STR(name)
783	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
784	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_32BIT(name)
785	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_PAE_32BIT_STR(name)
786	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_32BIT_STR(name)
787	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
788	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
789	#include "PGMBth.h"
790	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
791	#undef BTH_PGMPOOLKIND_PT_FOR_PT
792	#undef PGM_BTH_NAME
793	#undef PGM_BTH_NAME_GC_STR
794	#undef PGM_BTH_NAME_R0_STR
795	#undef PGM_GST_TYPE
796	#undef PGM_GST_NAME
797	#undef PGM_GST_NAME_GC_STR
798	#undef PGM_GST_NAME_R0_STR
799
800	/* Guest - PAE mode */
801	#define PGM_GST_TYPE PGM_TYPE_PAE
802	#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
803	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_PAE_STR(name)
804	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
805	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PAE(name)
806	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_PAE_PAE_STR(name)
807	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PAE_STR(name)
808	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
809	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
810	#include "PGMGst.h"
811	#include "PGMBth.h"
812	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
813	#undef BTH_PGMPOOLKIND_PT_FOR_PT
814	#undef PGM_BTH_NAME
815	#undef PGM_BTH_NAME_GC_STR
816	#undef PGM_BTH_NAME_R0_STR
817	#undef PGM_GST_TYPE
818	#undef PGM_GST_NAME
819	#undef PGM_GST_NAME_GC_STR
820	#undef PGM_GST_NAME_R0_STR
821
822	#undef PGM_SHW_TYPE
823	#undef PGM_SHW_NAME
824	#undef PGM_SHW_NAME_GC_STR
825	#undef PGM_SHW_NAME_R0_STR
826
827
828	/*
829	* Shadow - AMD64 mode
830	*/
831	#define PGM_SHW_TYPE PGM_TYPE_AMD64
832	#define PGM_SHW_NAME(name) PGM_SHW_NAME_AMD64(name)
833	#define PGM_SHW_NAME_GC_STR(name) PGM_SHW_NAME_GC_AMD64_STR(name)
834	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_AMD64_STR(name)
835	#include "PGMShw.h"
836
837	/* Guest - AMD64 mode */
838	#define PGM_GST_TYPE PGM_TYPE_AMD64
839	#define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
840	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_AMD64_STR(name)
841	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
842	#define PGM_BTH_NAME(name) PGM_BTH_NAME_AMD64_AMD64(name)
843	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_AMD64_AMD64_STR(name)
844	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_AMD64_AMD64_STR(name)
845	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
846	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
847	#include "PGMGst.h"
848	#include "PGMBth.h"
849	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
850	#undef BTH_PGMPOOLKIND_PT_FOR_PT
851	#undef PGM_BTH_NAME
852	#undef PGM_BTH_NAME_GC_STR
853	#undef PGM_BTH_NAME_R0_STR
854	#undef PGM_GST_TYPE
855	#undef PGM_GST_NAME
856	#undef PGM_GST_NAME_GC_STR
857	#undef PGM_GST_NAME_R0_STR
858
859	#undef PGM_SHW_TYPE
860	#undef PGM_SHW_NAME
861	#undef PGM_SHW_NAME_GC_STR
862	#undef PGM_SHW_NAME_R0_STR
863
864
865	/**
866	* Initiates the paging of VM.
867	*
868	* @returns VBox status code.
869	* @param pVM Pointer to VM structure.
870	*/
871	PGMR3DECL(int) PGMR3Init(PVM pVM)
872	{
873	LogFlow(("PGMR3Init:\n"));
874
875	/*
876	* Assert alignment and sizes.
877	*/
878	AssertRelease(sizeof(pVM->pgm.s) <= sizeof(pVM->pgm.padding));
879
880	/*
881	* Init the structure.
882	*/
883	pVM->pgm.s.offVM = RT_OFFSETOF(VM, pgm.s);
884	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
885	pVM->pgm.s.enmGuestMode = PGMMODE_INVALID;
886	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
887	pVM->pgm.s.GCPhysCR3 = NIL_RTGCPHYS;
888	pVM->pgm.s.GCPhysGstCR3Monitored = NIL_RTGCPHYS;
889	pVM->pgm.s.fA20Enabled = true;
890	pVM->pgm.s.pGstPaePDPTRHC = NULL;
891	pVM->pgm.s.pGstPaePDPTRGC = 0;
892	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apGstPaePDsHC); i++)
893	{
894	pVM->pgm.s.apGstPaePDsHC[i] = NULL;
895	pVM->pgm.s.apGstPaePDsGC[i] = 0;
896	pVM->pgm.s.aGCPhysGstPaePDs[i] = NIL_RTGCPHYS;
897	}
898
899	#ifdef VBOX_STRICT
900	VMR3AtStateRegister(pVM, pgmR3ResetNoMorePhysWritesFlag, NULL);
901	#endif
902
903	/*
904	* Get the configured RAM size - to estimate saved state size.
905	*/
906	uint64_t cbRam;
907	int rc = CFGMR3QueryU64(CFGMR3GetRoot(pVM), "RamSize", &cbRam);
908	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
909	cbRam = pVM->pgm.s.cbRamSize = 0;
910	else if (VBOX_SUCCESS(rc))
911	{
912	if (cbRam < PAGE_SIZE)
913	cbRam = 0;
914	cbRam = RT_ALIGN_64(cbRam, PAGE_SIZE);
915	pVM->pgm.s.cbRamSize = (RTUINT)cbRam;
916	}
917	else
918	{
919	AssertMsgFailed(("Configuration error: Failed to query integer \"RamSize\", rc=%Vrc.\n", rc));
920	return rc;
921	}
922
923	/*
924	* Register saved state data unit.
925	*/
926	rc = SSMR3RegisterInternal(pVM, "pgm", 1, PGM_SAVED_STATE_VERSION, (size_t)cbRam + sizeof(PGM),
927	NULL, pgmR3Save, NULL,
928	NULL, pgmR3Load, NULL);
929	if (VBOX_FAILURE(rc))
930	return rc;
931
932	/*
933	* Initialize the PGM critical section and flush the phys TLBs
934	*/
935	rc = PDMR3CritSectInit(pVM, &pVM->pgm.s.CritSect, "PGM");
936	AssertRCReturn(rc, rc);
937
938	PGMR3PhysChunkInvalidateTLB(pVM);
939	PGMPhysInvalidatePageR3MapTLB(pVM);
940	PGMPhysInvalidatePageR0MapTLB(pVM);
941	PGMPhysInvalidatePageGCMapTLB(pVM);
942
943	/*
944	* Trees
945	*/
946	rc = MMHyperAlloc(pVM, sizeof(PGMTREES), 0, MM_TAG_PGM, (void **)&pVM->pgm.s.pTreesHC);
947	if (VBOX_SUCCESS(rc))
948	{
949	pVM->pgm.s.pTreesGC = MMHyperHC2GC(pVM, pVM->pgm.s.pTreesHC);
950
951	/*
952	* Alocate the zero page.
953	*/
954	rc = MMHyperAlloc(pVM, PAGE_SIZE, PAGE_SIZE, MM_TAG_PGM, &pVM->pgm.s.pvZeroPgR3);
955	}
956	if (VBOX_SUCCESS(rc))
957	{
958	pVM->pgm.s.pvZeroPgGC = MMHyperR3ToGC(pVM, pVM->pgm.s.pvZeroPgR3);
959	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
960	AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTHCPHYS);
961	pVM->pgm.s.HCPhysZeroPg = MMR3HyperHCVirt2HCPhys(pVM, pVM->pgm.s.pvZeroPgR3);
962	AssertRelease(pVM->pgm.s.HCPhysZeroPg != NIL_RTHCPHYS);
963
964	/*
965	* Init the paging.
966	*/
967	rc = pgmR3InitPaging(pVM);
968	}
969	if (VBOX_SUCCESS(rc))
970	{
971	/*
972	* Init the page pool.
973	*/
974	rc = pgmR3PoolInit(pVM);
975	}
976	if (VBOX_SUCCESS(rc))
977	{
978	/*
979	* Info & statistics
980	*/
981	DBGFR3InfoRegisterInternal(pVM, "mode",
982	"Shows the current paging mode. "
983	"Recognizes 'all', 'guest', 'shadow' and 'host' as arguments, defaulting to 'all' if nothing's given.",
984	pgmR3InfoMode);
985	DBGFR3InfoRegisterInternal(pVM, "pgmcr3",
986	"Dumps all the entries in the top level paging table. No arguments.",
987	pgmR3InfoCr3);
988	DBGFR3InfoRegisterInternal(pVM, "phys",
989	"Dumps all the physical address ranges. No arguments.",
990	pgmR3PhysInfo);
991	DBGFR3InfoRegisterInternal(pVM, "handlers",
992	"Dumps physical, virtual and hyper virtual handlers. "
993	"Pass 'phys', 'virt', 'hyper' as argument if only one kind is wanted."
994	"Add 'nost' if the statistics are unwanted, use together with 'all' or explicit selection.",
995	pgmR3InfoHandlers);
996	DBGFR3InfoRegisterInternal(pVM, "mappings",
997	"Dumps guest mappings.",
998	pgmR3MapInfo);
999
1000	STAM_REL_REG(pVM, &pVM->pgm.s.cGuestModeChanges, STAMTYPE_COUNTER, "/PGM/cGuestModeChanges", STAMUNIT_OCCURENCES, "Number of guest mode changes.");
1001	#ifdef VBOX_WITH_STATISTICS
1002	pgmR3InitStats(pVM);
1003	#endif
1004	#ifdef VBOX_WITH_DEBUGGER
1005	/*
1006	* Debugger commands.
1007	*/
1008	static bool fRegisteredCmds = false;
1009	if (!fRegisteredCmds)
1010	{
1011	int rc = DBGCRegisterCommands(&g_aCmds[0], ELEMENTS(g_aCmds));
1012	if (VBOX_SUCCESS(rc))
1013	fRegisteredCmds = true;
1014	}
1015	#endif
1016	return VINF_SUCCESS;
1017	}
1018
1019	/* Almost no cleanup necessary, MM frees all memory. */
1020	PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
1021
1022	return rc;
1023	}
1024
1025
1026	/**
1027	* Init paging.
1028	*
1029	* Since we need to check what mode the host is operating in before we can choose
1030	* the right paging functions for the host we have to delay this until R0 has
1031	* been initialized.
1032	*
1033	* @returns VBox status code.
1034	* @param pVM VM handle.
1035	*/
1036	static int pgmR3InitPaging(PVM pVM)
1037	{
1038	/*
1039	* Force a recalculation of modes and switcher so everyone gets notified.
1040	*/
1041	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
1042	pVM->pgm.s.enmGuestMode = PGMMODE_INVALID;
1043	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
1044
1045	/*
1046	* Allocate static mapping space for whatever the cr3 register
1047	* points to and in the case of PAE mode to the 4 PDs.
1048	*/
1049	int rc = MMR3HyperReserve(pVM, PAGE_SIZE * 5, "CR3 mapping", &pVM->pgm.s.GCPtrCR3Mapping);
1050	if (VBOX_FAILURE(rc))
1051	{
1052	AssertMsgFailed(("Failed to reserve two pages for cr mapping in HMA, rc=%Vrc\n", rc));
1053	return rc;
1054	}
1055	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1056
1057	/*
1058	* Allocate pages for the three possible intermediate contexts
1059	* (AMD64, PAE and plain 32-Bit). We maintain all three contexts
1060	* for the sake of simplicity. The AMD64 uses the PAE for the
1061	* lower levels, making the total number of pages 11 (3 + 7 + 1).
1062	*
1063	* We assume that two page tables will be enought for the core code
1064	* mappings (HC virtual and identity).
1065	*/
1066	pVM->pgm.s.pInterPD = (PX86PD)MMR3PageAllocLow(pVM);
1067	pVM->pgm.s.apInterPTs[0] = (PX86PT)MMR3PageAllocLow(pVM);
1068	pVM->pgm.s.apInterPTs[1] = (PX86PT)MMR3PageAllocLow(pVM);
1069	pVM->pgm.s.apInterPaePTs[0] = (PX86PTPAE)MMR3PageAlloc(pVM);
1070	pVM->pgm.s.apInterPaePTs[1] = (PX86PTPAE)MMR3PageAlloc(pVM);
1071	pVM->pgm.s.apInterPaePDs[0] = (PX86PDPAE)MMR3PageAlloc(pVM);
1072	pVM->pgm.s.apInterPaePDs[1] = (PX86PDPAE)MMR3PageAlloc(pVM);
1073	pVM->pgm.s.apInterPaePDs[2] = (PX86PDPAE)MMR3PageAlloc(pVM);
1074	pVM->pgm.s.apInterPaePDs[3] = (PX86PDPAE)MMR3PageAlloc(pVM);
1075	pVM->pgm.s.pInterPaePDPTR = (PX86PDPTR)MMR3PageAllocLow(pVM);
1076	pVM->pgm.s.pInterPaePDPTR64 = (PX86PDPTR)MMR3PageAllocLow(pVM);
1077	pVM->pgm.s.pInterPaePML4 = (PX86PML4)MMR3PageAllocLow(pVM);
1078	if ( !pVM->pgm.s.pInterPD
1079	\|\| !pVM->pgm.s.apInterPTs[0]
1080	\|\| !pVM->pgm.s.apInterPTs[1]
1081	\|\| !pVM->pgm.s.apInterPaePTs[0]
1082	\|\| !pVM->pgm.s.apInterPaePTs[1]
1083	\|\| !pVM->pgm.s.apInterPaePDs[0]
1084	\|\| !pVM->pgm.s.apInterPaePDs[1]
1085	\|\| !pVM->pgm.s.apInterPaePDs[2]
1086	\|\| !pVM->pgm.s.apInterPaePDs[3]
1087	\|\| !pVM->pgm.s.pInterPaePDPTR
1088	\|\| !pVM->pgm.s.pInterPaePDPTR64
1089	\|\| !pVM->pgm.s.pInterPaePML4)
1090	{
1091	AssertMsgFailed(("Failed to allocate pages for the intermediate context!\n"));
1092	return VERR_NO_PAGE_MEMORY;
1093	}
1094
1095	pVM->pgm.s.HCPhysInterPD = MMPage2Phys(pVM, pVM->pgm.s.pInterPD);
1096	AssertRelease(pVM->pgm.s.HCPhysInterPD != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPD & PAGE_OFFSET_MASK));
1097	pVM->pgm.s.HCPhysInterPaePDPTR = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPTR);
1098	AssertRelease(pVM->pgm.s.HCPhysInterPaePDPTR != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePDPTR & PAGE_OFFSET_MASK));
1099	pVM->pgm.s.HCPhysInterPaePML4 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePML4);
1100	AssertRelease(pVM->pgm.s.HCPhysInterPaePML4 != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePML4 & PAGE_OFFSET_MASK));
1101
1102	/*
1103	* Initialize the pages, setting up the PML4 and PDPTR for repetitive 4GB action.
1104	*/
1105	ASMMemZeroPage(pVM->pgm.s.pInterPD);
1106	ASMMemZeroPage(pVM->pgm.s.apInterPTs[0]);
1107	ASMMemZeroPage(pVM->pgm.s.apInterPTs[1]);
1108
1109	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[0]);
1110	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[1]);
1111
1112	ASMMemZeroPage(pVM->pgm.s.pInterPaePDPTR);
1113	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apInterPaePDs); i++)
1114	{
1115	ASMMemZeroPage(pVM->pgm.s.apInterPaePDs[i]);
1116	pVM->pgm.s.pInterPaePDPTR->a[i].u = X86_PDPE_P \| PGM_PLXFLAGS_PERMANENT
1117	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[i]);
1118	}
1119
1120	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.pInterPaePDPTR64->a); i++)
1121	{
1122	const unsigned iPD = i % ELEMENTS(pVM->pgm.s.apInterPaePDs);
1123	pVM->pgm.s.pInterPaePDPTR64->a[i].u = X86_PDPE_P \| X86_PDPE_RW \| X86_PDPE_US \| X86_PDPE_A \| PGM_PLXFLAGS_PERMANENT
1124	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[iPD]);
1125	}
1126
1127	RTHCPHYS HCPhysInterPaePDPTR64 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPTR64);
1128	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.pInterPaePML4->a); i++)
1129	pVM->pgm.s.pInterPaePML4->a[i].u = X86_PML4E_P \| X86_PML4E_RW \| X86_PML4E_US \| X86_PML4E_A \| PGM_PLXFLAGS_PERMANENT
1130	\| HCPhysInterPaePDPTR64;
1131
1132	/*
1133	* Allocate pages for the three possible guest contexts (AMD64, PAE and plain 32-Bit).
1134	* We allocate pages for all three posibilities to in order to simplify mappings and
1135	* avoid resource failure during mode switches. So, we need to cover all levels of the
1136	* of the first 4GB down to PD level.
1137	* As with the intermediate context, AMD64 uses the PAE PDPTR and PDs.
1138	*/
1139	pVM->pgm.s.pHC32BitPD = (PX86PD)MMR3PageAllocLow(pVM);
1140	pVM->pgm.s.apHCPaePDs[0] = (PX86PDPAE)MMR3PageAlloc(pVM);
1141	pVM->pgm.s.apHCPaePDs[1] = (PX86PDPAE)MMR3PageAlloc(pVM);
1142	AssertRelease((uintptr_t)pVM->pgm.s.apHCPaePDs[0] + PAGE_SIZE == (uintptr_t)pVM->pgm.s.apHCPaePDs[1]);
1143	pVM->pgm.s.apHCPaePDs[2] = (PX86PDPAE)MMR3PageAlloc(pVM);
1144	AssertRelease((uintptr_t)pVM->pgm.s.apHCPaePDs[1] + PAGE_SIZE == (uintptr_t)pVM->pgm.s.apHCPaePDs[2]);
1145	pVM->pgm.s.apHCPaePDs[3] = (PX86PDPAE)MMR3PageAlloc(pVM);
1146	AssertRelease((uintptr_t)pVM->pgm.s.apHCPaePDs[2] + PAGE_SIZE == (uintptr_t)pVM->pgm.s.apHCPaePDs[3]);
1147	pVM->pgm.s.pHCPaePDPTR = (PX86PDPTR)MMR3PageAllocLow(pVM);
1148	pVM->pgm.s.pHCPaePML4 = (PX86PML4)MMR3PageAllocLow(pVM);
1149	if ( !pVM->pgm.s.pHC32BitPD
1150	\|\| !pVM->pgm.s.apHCPaePDs[0]
1151	\|\| !pVM->pgm.s.apHCPaePDs[1]
1152	\|\| !pVM->pgm.s.apHCPaePDs[2]
1153	\|\| !pVM->pgm.s.apHCPaePDs[3]
1154	\|\| !pVM->pgm.s.pHCPaePDPTR
1155	\|\| !pVM->pgm.s.pHCPaePML4)
1156	{
1157	AssertMsgFailed(("Failed to allocate pages for the intermediate context!\n"));
1158	return VERR_NO_PAGE_MEMORY;
1159	}
1160
1161	/* get physical addresses. */
1162	pVM->pgm.s.HCPhys32BitPD = MMPage2Phys(pVM, pVM->pgm.s.pHC32BitPD);
1163	Assert(MMPagePhys2Page(pVM, pVM->pgm.s.HCPhys32BitPD) == pVM->pgm.s.pHC32BitPD);
1164	pVM->pgm.s.aHCPhysPaePDs[0] = MMPage2Phys(pVM, pVM->pgm.s.apHCPaePDs[0]);
1165	pVM->pgm.s.aHCPhysPaePDs[1] = MMPage2Phys(pVM, pVM->pgm.s.apHCPaePDs[1]);
1166	pVM->pgm.s.aHCPhysPaePDs[2] = MMPage2Phys(pVM, pVM->pgm.s.apHCPaePDs[2]);
1167	pVM->pgm.s.aHCPhysPaePDs[3] = MMPage2Phys(pVM, pVM->pgm.s.apHCPaePDs[3]);
1168	pVM->pgm.s.HCPhysPaePDPTR = MMPage2Phys(pVM, pVM->pgm.s.pHCPaePDPTR);
1169	pVM->pgm.s.HCPhysPaePML4 = MMPage2Phys(pVM, pVM->pgm.s.pHCPaePML4);
1170
1171	/*
1172	* Initialize the pages, setting up the PML4 and PDPTR for action below 4GB.
1173	*/
1174	ASMMemZero32(pVM->pgm.s.pHC32BitPD, PAGE_SIZE);
1175
1176	ASMMemZero32(pVM->pgm.s.pHCPaePDPTR, PAGE_SIZE);
1177	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apHCPaePDs); i++)
1178	{
1179	ASMMemZero32(pVM->pgm.s.apHCPaePDs[i], PAGE_SIZE);
1180	pVM->pgm.s.pHCPaePDPTR->a[i].u = X86_PDPE_P \| PGM_PLXFLAGS_PERMANENT \| pVM->pgm.s.aHCPhysPaePDs[i];
1181	/* The flags will be corrected when entering and leaving long mode. */
1182	}
1183
1184	ASMMemZero32(pVM->pgm.s.pHCPaePML4, PAGE_SIZE);
1185	pVM->pgm.s.pHCPaePML4->a[0].u = X86_PML4E_P \| X86_PML4E_RW \| X86_PML4E_A
1186	\| PGM_PLXFLAGS_PERMANENT \| pVM->pgm.s.HCPhysPaePDPTR;
1187
1188	CPUMSetHyperCR3(pVM, (uint32_t)pVM->pgm.s.HCPhys32BitPD);
1189
1190	/*
1191	* Initialize paging workers and mode from current host mode
1192	* and the guest running in real mode.
1193	*/
1194	pVM->pgm.s.enmHostMode = SUPGetPagingMode();
1195	switch (pVM->pgm.s.enmHostMode)
1196	{
1197	case SUPPAGINGMODE_32_BIT:
1198	case SUPPAGINGMODE_32_BIT_GLOBAL:
1199	case SUPPAGINGMODE_PAE:
1200	case SUPPAGINGMODE_PAE_GLOBAL:
1201	case SUPPAGINGMODE_PAE_NX:
1202	case SUPPAGINGMODE_PAE_GLOBAL_NX:
1203	break;
1204
1205	case SUPPAGINGMODE_AMD64:
1206	case SUPPAGINGMODE_AMD64_GLOBAL:
1207	case SUPPAGINGMODE_AMD64_NX:
1208	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
1209	#ifndef VBOX_WITH_HYBIRD_32BIT_KERNEL
1210	if (ARCH_BITS != 64)
1211	{
1212	AssertMsgFailed(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1213	LogRel(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1214	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1215	}
1216	#endif
1217	break;
1218	default:
1219	AssertMsgFailed(("Host mode %d is not supported\n", pVM->pgm.s.enmHostMode));
1220	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1221	}
1222	rc = pgmR3ModeDataInit(pVM, false /* don't resolve GC and R0 syms yet */);
1223	if (VBOX_SUCCESS(rc))
1224	rc = pgmR3ChangeMode(pVM, PGMMODE_REAL);
1225	if (VBOX_SUCCESS(rc))
1226	{
1227	LogFlow(("pgmR3InitPaging: returns successfully\n"));
1228	#if HC_ARCH_BITS == 64
1229	LogRel(("Debug: HCPhys32BitPD=%VHp aHCPhysPaePDs={%VHp,%VHp,%VHp,%VHp} HCPhysPaePDPTR=%VHp HCPhysPaePML4=%VHp\n",
1230	pVM->pgm.s.HCPhys32BitPD, pVM->pgm.s.aHCPhysPaePDs[0], pVM->pgm.s.aHCPhysPaePDs[1], pVM->pgm.s.aHCPhysPaePDs[2], pVM->pgm.s.aHCPhysPaePDs[3],
1231	pVM->pgm.s.HCPhysPaePDPTR, pVM->pgm.s.HCPhysPaePML4));
1232	LogRel(("Debug: HCPhysInterPD=%VHp HCPhysInterPaePDPTR=%VHp HCPhysInterPaePML4=%VHp\n",
1233	pVM->pgm.s.HCPhysInterPD, pVM->pgm.s.HCPhysInterPaePDPTR, pVM->pgm.s.HCPhysInterPaePML4));
1234	LogRel(("Debug: apInterPTs={%VHp,%VHp} apInterPaePTs={%VHp,%VHp} apInterPaePDs={%VHp,%VHp,%VHp,%VHp} pInterPaePDPTR64=%VHp\n",
1235	MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[1]),
1236	MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[1]),
1237	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]),
1238	MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPTR64)));
1239	#endif
1240
1241	return VINF_SUCCESS;
1242	}
1243
1244	LogFlow(("pgmR3InitPaging: returns %Vrc\n", rc));
1245	return rc;
1246	}
1247
1248
1249	#ifdef VBOX_WITH_STATISTICS
1250	/**
1251	* Init statistics
1252	*/
1253	static void pgmR3InitStats(PVM pVM)
1254	{
1255	PPGM pPGM = &pVM->pgm.s;
1256	STAM_REG(pVM, &pPGM->StatGCInvalidatePage, STAMTYPE_PROFILE, "/PGM/GC/InvalidatePage", STAMUNIT_TICKS_PER_CALL, "PGMGCInvalidatePage() profiling.");
1257	STAM_REG(pVM, &pPGM->StatGCInvalidatePage4KBPages, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/4KBPages", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for a 4KB page.");
1258	STAM_REG(pVM, &pPGM->StatGCInvalidatePage4MBPages, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/4MBPages", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for a 4MB page.");
1259	STAM_REG(pVM, &pPGM->StatGCInvalidatePage4MBPagesSkip, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/4MBPagesSkip",STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() skipped a 4MB page.");
1260	STAM_REG(pVM, &pPGM->StatGCInvalidatePagePDMappings, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/PDMappings", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for a page directory containing mappings (no conflict).");
1261	STAM_REG(pVM, &pPGM->StatGCInvalidatePagePDNAs, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/PDNAs", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for a not accessed page directory.");
1262	STAM_REG(pVM, &pPGM->StatGCInvalidatePagePDNPs, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/PDNPs", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for a not present page directory.");
1263	STAM_REG(pVM, &pPGM->StatGCInvalidatePagePDOutOfSync, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/PDOutOfSync", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for an out of sync page directory.");
1264	STAM_REG(pVM, &pPGM->StatGCInvalidatePageSkipped, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/Skipped", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
1265	STAM_REG(pVM, &pPGM->StatGCSyncPT, STAMTYPE_PROFILE, "/PGM/GC/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGCSyncPT() body.");
1266	STAM_REG(pVM, &pPGM->StatGCAccessedPage, STAMTYPE_COUNTER, "/PGM/GC/AccessedPage", STAMUNIT_OCCURENCES, "The number of pages marked not present for accessed bit emulation.");
1267	STAM_REG(pVM, &pPGM->StatGCDirtyPage, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/Mark", STAMUNIT_OCCURENCES, "The number of pages marked read-only for dirty bit tracking.");
1268	STAM_REG(pVM, &pPGM->StatGCDirtyPageBig, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/MarkBig", STAMUNIT_OCCURENCES, "The number of 4MB pages marked read-only for dirty bit tracking.");
1269	STAM_REG(pVM, &pPGM->StatGCDirtyPageTrap, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/Trap", STAMUNIT_OCCURENCES, "The number of traps generated for dirty bit tracking.");
1270	STAM_REG(pVM, &pPGM->StatGCDirtyPageSkipped, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/Skipped", STAMUNIT_OCCURENCES, "The number of pages already dirty or readonly.");
1271	STAM_REG(pVM, &pPGM->StatGCDirtiedPage, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/SetDirty", STAMUNIT_OCCURENCES, "The number of pages marked dirty because of write accesses.");
1272	STAM_REG(pVM, &pPGM->StatGCDirtyTrackRealPF, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/RealPF", STAMUNIT_OCCURENCES, "The number of real pages faults during dirty bit tracking.");
1273	STAM_REG(pVM, &pPGM->StatGCPageAlreadyDirty, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/AlreadySet", STAMUNIT_OCCURENCES, "The number of pages already marked dirty because of write accesses.");
1274	STAM_REG(pVM, &pPGM->StatGCDirtyBitTracking, STAMTYPE_PROFILE, "/PGM/GC/DirtyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMTrackDirtyBit() body.");
1275	STAM_REG(pVM, &pPGM->StatGCSyncPTAlloc, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/Alloc", STAMUNIT_OCCURENCES, "The number of times PGMGCSyncPT() needed to allocate page tables.");
1276	STAM_REG(pVM, &pPGM->StatGCSyncPTConflict, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/Conflicts", STAMUNIT_OCCURENCES, "The number of times PGMGCSyncPT() detected conflicts.");
1277	STAM_REG(pVM, &pPGM->StatGCSyncPTFailed, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/Failed", STAMUNIT_OCCURENCES, "The number of times PGMGCSyncPT() failed.");
1278
1279	STAM_REG(pVM, &pPGM->StatGCTrap0e, STAMTYPE_PROFILE, "/PGM/GC/Trap0e", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGCTrap0eHandler() body.");
1280	STAM_REG(pVM, &pPGM->StatCheckPageFault, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/CheckPageFault", STAMUNIT_TICKS_PER_CALL, "Profiling of checking for dirty/access emulation faults.");
1281	STAM_REG(pVM, &pPGM->StatLazySyncPT, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of lazy page table syncing.");
1282	STAM_REG(pVM, &pPGM->StatMapping, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/Mapping", STAMUNIT_TICKS_PER_CALL, "Profiling of checking virtual mappings.");
1283	STAM_REG(pVM, &pPGM->StatOutOfSync, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/OutOfSync", STAMUNIT_TICKS_PER_CALL, "Profiling of out of sync page handling.");
1284	STAM_REG(pVM, &pPGM->StatHandlers, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of checking handlers.");
1285	STAM_REG(pVM, &pPGM->StatEIPHandlers, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/EIPHandlers", STAMUNIT_TICKS_PER_CALL, "Profiling of checking eip handlers.");
1286	STAM_REG(pVM, &pPGM->StatTrap0eCSAM, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/CSAM", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is CSAM.");
1287	STAM_REG(pVM, &pPGM->StatTrap0eDirtyAndAccessedBits, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/DirtyAndAccessedBits", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation.");
1288	STAM_REG(pVM, &pPGM->StatTrap0eGuestTrap, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/GuestTrap", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is a guest trap.");
1289	STAM_REG(pVM, &pPGM->StatTrap0eHndPhys, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/HandlerPhysical", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is a physical handler.");
1290	STAM_REG(pVM, &pPGM->StatTrap0eHndVirt, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/HandlerVirtual",STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is a virtual handler.");
1291	STAM_REG(pVM, &pPGM->StatTrap0eHndUnhandled, STAMTYPE_PROFILE, "/PGM/GC/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.");
1292	STAM_REG(pVM, &pPGM->StatTrap0eMisc, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/Misc", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is not known.");
1293	STAM_REG(pVM, &pPGM->StatTrap0eOutOfSync, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/OutOfSync", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is an out-of-sync page.");
1294	STAM_REG(pVM, &pPGM->StatTrap0eOutOfSyncHndPhys, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/OutOfSyncHndPhys", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page.");
1295	STAM_REG(pVM, &pPGM->StatTrap0eOutOfSyncHndVirt, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/OutOfSyncHndVirt", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page.");
1296	STAM_REG(pVM, &pPGM->StatTrap0eOutOfSyncObsHnd, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/OutOfSyncObsHnd", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is an obsolete handler page.");
1297	STAM_REG(pVM, &pPGM->StatTrap0eSyncPT, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time2/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT.");
1298
1299	STAM_REG(pVM, &pPGM->StatTrap0eMapHandler, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/Mapping", STAMUNIT_OCCURENCES, "Number of traps due to access handlers in mappings.");
1300	STAM_REG(pVM, &pPGM->StatHandlersOutOfSync, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/OutOfSync", STAMUNIT_OCCURENCES, "Number of traps due to out-of-sync handled pages.");
1301	STAM_REG(pVM, &pPGM->StatHandlersPhysical, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/Physical", STAMUNIT_OCCURENCES, "Number of traps due to physical access handlers.");
1302	STAM_REG(pVM, &pPGM->StatHandlersVirtual, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/Virtual", STAMUNIT_OCCURENCES, "Number of traps due to virtual access handlers.");
1303	STAM_REG(pVM, &pPGM->StatHandlersVirtualByPhys, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/VirtualByPhys", STAMUNIT_OCCURENCES, "Number of traps due to virtual access handlers by physical address.");
1304	STAM_REG(pVM, &pPGM->StatHandlersVirtualUnmarked, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/VirtualUnmarked", STAMUNIT_OCCURENCES,"Number of traps due to virtual access handlers by virtual address (without proper physical flags).");
1305	STAM_REG(pVM, &pPGM->StatHandlersUnhandled, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/Unhandled", STAMUNIT_OCCURENCES, "Number of traps due to access outside range of monitored page(s).");
1306
1307	STAM_REG(pVM, &pPGM->StatGCTrap0eConflicts, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Conflicts", STAMUNIT_OCCURENCES, "The number of times #PF was caused by an undetected conflict.");
1308	STAM_REG(pVM, &pPGM->StatGCTrap0eUSNotPresentRead, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/NPRead", STAMUNIT_OCCURENCES, "Number of user mode not present read page faults.");
1309	STAM_REG(pVM, &pPGM->StatGCTrap0eUSNotPresentWrite, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/NPWrite", STAMUNIT_OCCURENCES, "Number of user mode not present write page faults.");
1310	STAM_REG(pVM, &pPGM->StatGCTrap0eUSWrite, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/Write", STAMUNIT_OCCURENCES, "Number of user mode write page faults.");
1311	STAM_REG(pVM, &pPGM->StatGCTrap0eUSReserved, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/Reserved", STAMUNIT_OCCURENCES, "Number of user mode reserved bit page faults.");
1312	STAM_REG(pVM, &pPGM->StatGCTrap0eUSNXE, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/NXE", STAMUNIT_OCCURENCES, "Number of user mode NXE page faults.");
1313	STAM_REG(pVM, &pPGM->StatGCTrap0eUSRead, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/Read", STAMUNIT_OCCURENCES, "Number of user mode read page faults.");
1314
1315	STAM_REG(pVM, &pPGM->StatGCTrap0eSVNotPresentRead, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/NPRead", STAMUNIT_OCCURENCES, "Number of supervisor mode not present read page faults.");
1316	STAM_REG(pVM, &pPGM->StatGCTrap0eSVNotPresentWrite, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/NPWrite", STAMUNIT_OCCURENCES, "Number of supervisor mode not present write page faults.");
1317	STAM_REG(pVM, &pPGM->StatGCTrap0eSVWrite, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/Write", STAMUNIT_OCCURENCES, "Number of supervisor mode write page faults.");
1318	STAM_REG(pVM, &pPGM->StatGCTrap0eSVReserved, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/Reserved", STAMUNIT_OCCURENCES, "Number of supervisor mode reserved bit page faults.");
1319	STAM_REG(pVM, &pPGM->StatGCTrap0eSNXE, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/NXE", STAMUNIT_OCCURENCES, "Number of supervisor mode NXE page faults.");
1320	STAM_REG(pVM, &pPGM->StatGCTrap0eUnhandled, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/GuestPF/Unhandled", STAMUNIT_OCCURENCES, "Number of guest real page faults.");
1321	STAM_REG(pVM, &pPGM->StatGCTrap0eMap, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/GuestPF/Map", STAMUNIT_OCCURENCES, "Number of guest page faults due to map accesses.");
1322
1323
1324	STAM_REG(pVM, &pPGM->StatGCGuestCR3WriteHandled, STAMTYPE_COUNTER, "/PGM/GC/CR3WriteInt", STAMUNIT_OCCURENCES, "The number of times the Guest CR3 change was successfully handled.");
1325	STAM_REG(pVM, &pPGM->StatGCGuestCR3WriteUnhandled, STAMTYPE_COUNTER, "/PGM/GC/CR3WriteEmu", STAMUNIT_OCCURENCES, "The number of times the Guest CR3 change was passed back to the recompiler.");
1326	STAM_REG(pVM, &pPGM->StatGCGuestCR3WriteConflict, STAMTYPE_COUNTER, "/PGM/GC/CR3WriteConflict", STAMUNIT_OCCURENCES, "The number of times the Guest CR3 monitoring detected a conflict.");
1327
1328	STAM_REG(pVM, &pPGM->StatGCPageOutOfSyncSupervisor, STAMTYPE_COUNTER, "/PGM/GC/OutOfSync/SuperVisor", STAMUNIT_OCCURENCES, "Number of traps due to pages out of sync.");
1329	STAM_REG(pVM, &pPGM->StatGCPageOutOfSyncUser, STAMTYPE_COUNTER, "/PGM/GC/OutOfSync/User", STAMUNIT_OCCURENCES, "Number of traps due to pages out of sync.");
1330
1331	STAM_REG(pVM, &pPGM->StatGCGuestROMWriteHandled, STAMTYPE_COUNTER, "/PGM/GC/ROMWriteInt", STAMUNIT_OCCURENCES, "The number of times the Guest ROM change was successfully handled.");
1332	STAM_REG(pVM, &pPGM->StatGCGuestROMWriteUnhandled, STAMTYPE_COUNTER, "/PGM/GC/ROMWriteEmu", STAMUNIT_OCCURENCES, "The number of times the Guest ROM change was passed back to the recompiler.");
1333
1334	STAM_REG(pVM, &pPGM->StatDynMapCacheHits, STAMTYPE_COUNTER, "/PGM/GC/DynMapCache/Hits" , STAMUNIT_OCCURENCES, "Number of dynamic page mapping cache hits.");
1335	STAM_REG(pVM, &pPGM->StatDynMapCacheMisses, STAMTYPE_COUNTER, "/PGM/GC/DynMapCache/Misses" , STAMUNIT_OCCURENCES, "Number of dynamic page mapping cache misses.");
1336
1337	STAM_REG(pVM, &pPGM->StatHCDetectedConflicts, STAMTYPE_COUNTER, "/PGM/HC/DetectedConflicts", STAMUNIT_OCCURENCES, "The number of times PGMR3CheckMappingConflicts() detected a conflict.");
1338	STAM_REG(pVM, &pPGM->StatHCGuestPDWrite, STAMTYPE_COUNTER, "/PGM/HC/PDWrite", STAMUNIT_OCCURENCES, "The total number of times pgmHCGuestPDWriteHandler() was called.");
1339	STAM_REG(pVM, &pPGM->StatHCGuestPDWriteConflict, STAMTYPE_COUNTER, "/PGM/HC/PDWriteConflict", STAMUNIT_OCCURENCES, "The number of times pgmHCGuestPDWriteHandler() detected a conflict.");
1340
1341	STAM_REG(pVM, &pPGM->StatHCInvalidatePage, STAMTYPE_PROFILE, "/PGM/HC/InvalidatePage", STAMUNIT_TICKS_PER_CALL, "PGMHCInvalidatePage() profiling.");
1342	STAM_REG(pVM, &pPGM->StatHCInvalidatePage4KBPages, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/4KBPages", STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() was called for a 4KB page.");
1343	STAM_REG(pVM, &pPGM->StatHCInvalidatePage4MBPages, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/4MBPages", STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() was called for a 4MB page.");
1344	STAM_REG(pVM, &pPGM->StatHCInvalidatePage4MBPagesSkip, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/4MBPagesSkip",STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() skipped a 4MB page.");
1345	STAM_REG(pVM, &pPGM->StatHCInvalidatePagePDMappings, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/PDMappings", STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() was called for a page directory containing mappings (no conflict).");
1346	STAM_REG(pVM, &pPGM->StatHCInvalidatePagePDNAs, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/PDNAs", STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() was called for a not accessed page directory.");
1347	STAM_REG(pVM, &pPGM->StatHCInvalidatePagePDNPs, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/PDNPs", STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() was called for a not present page directory.");
1348	STAM_REG(pVM, &pPGM->StatHCInvalidatePagePDOutOfSync, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/PDOutOfSync", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for an out of sync page directory.");
1349	STAM_REG(pVM, &pPGM->StatHCInvalidatePageSkipped, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/Skipped", STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
1350	STAM_REG(pVM, &pPGM->StatHCResolveConflict, STAMTYPE_PROFILE, "/PGM/HC/ResolveConflict", STAMUNIT_TICKS_PER_CALL, "pgmR3SyncPTResolveConflict() profiling (includes the entire relocation).");
1351	STAM_REG(pVM, &pPGM->StatHCPrefetch, STAMTYPE_PROFILE, "/PGM/HC/Prefetch", STAMUNIT_TICKS_PER_CALL, "PGMR3PrefetchPage profiling.");
1352
1353	STAM_REG(pVM, &pPGM->StatHCSyncPT, STAMTYPE_PROFILE, "/PGM/HC/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMR3SyncPT() body.");
1354	STAM_REG(pVM, &pPGM->StatHCAccessedPage, STAMTYPE_COUNTER, "/PGM/HC/AccessedPage", STAMUNIT_OCCURENCES, "The number of pages marked not present for accessed bit emulation.");
1355	STAM_REG(pVM, &pPGM->StatHCDirtyPage, STAMTYPE_COUNTER, "/PGM/HC/DirtyPage/Mark", STAMUNIT_OCCURENCES, "The number of pages marked read-only for dirty bit tracking.");
1356	STAM_REG(pVM, &pPGM->StatHCDirtyPageBig, STAMTYPE_COUNTER, "/PGM/HC/DirtyPage/MarkBig", STAMUNIT_OCCURENCES, "The number of 4MB pages marked read-only for dirty bit tracking.");
1357	STAM_REG(pVM, &pPGM->StatHCDirtyPageTrap, STAMTYPE_COUNTER, "/PGM/HC/DirtyPage/Trap", STAMUNIT_OCCURENCES, "The number of traps generated for dirty bit tracking.");
1358	STAM_REG(pVM, &pPGM->StatHCDirtyPageSkipped, STAMTYPE_COUNTER, "/PGM/HC/DirtyPage/Skipped", STAMUNIT_OCCURENCES, "The number of pages already dirty or readonly.");
1359	STAM_REG(pVM, &pPGM->StatHCDirtyBitTracking, STAMTYPE_PROFILE, "/PGM/HC/DirtyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMTrackDirtyBit() body.");
1360
1361	STAM_REG(pVM, &pPGM->StatGCSyncPagePDNAs, STAMTYPE_COUNTER, "/PGM/GC/SyncPagePDNAs", STAMUNIT_OCCURENCES, "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
1362	STAM_REG(pVM, &pPGM->StatGCSyncPagePDOutOfSync, STAMTYPE_COUNTER, "/PGM/GC/SyncPagePDOutOfSync", STAMUNIT_OCCURENCES, "The number of time we've encountered an out-of-sync PD in SyncPage.");
1363	STAM_REG(pVM, &pPGM->StatHCSyncPagePDNAs, STAMTYPE_COUNTER, "/PGM/HC/SyncPagePDNAs", STAMUNIT_OCCURENCES, "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
1364	STAM_REG(pVM, &pPGM->StatHCSyncPagePDOutOfSync, STAMTYPE_COUNTER, "/PGM/HC/SyncPagePDOutOfSync", STAMUNIT_OCCURENCES, "The number of time we've encountered an out-of-sync PD in SyncPage.");
1365
1366	STAM_REG(pVM, &pPGM->StatFlushTLB, STAMTYPE_PROFILE, "/PGM/FlushTLB", STAMUNIT_OCCURENCES, "Profiling of the PGMFlushTLB() body.");
1367	STAM_REG(pVM, &pPGM->StatFlushTLBNewCR3, STAMTYPE_COUNTER, "/PGM/FlushTLB/NewCR3", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
1368	STAM_REG(pVM, &pPGM->StatFlushTLBNewCR3Global, STAMTYPE_COUNTER, "/PGM/FlushTLB/NewCR3Global", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
1369	STAM_REG(pVM, &pPGM->StatFlushTLBSameCR3, STAMTYPE_COUNTER, "/PGM/FlushTLB/SameCR3", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
1370	STAM_REG(pVM, &pPGM->StatFlushTLBSameCR3Global, STAMTYPE_COUNTER, "/PGM/FlushTLB/SameCR3Global", STAMUNIT_OCCURENCES, "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
1371
1372	STAM_REG(pVM, &pPGM->StatGCSyncCR3, STAMTYPE_PROFILE, "/PGM/GC/SyncCR3", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() body.");
1373	STAM_REG(pVM, &pPGM->StatGCSyncCR3Handlers, STAMTYPE_PROFILE, "/PGM/GC/SyncCR3/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() update handler section.");
1374	STAM_REG(pVM, &pPGM->StatGCSyncCR3HandlerVirtualUpdate, STAMTYPE_PROFILE, "/PGM/GC/SyncCR3/Handlers/VirtualUpdate",STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler updates.");
1375	STAM_REG(pVM, &pPGM->StatGCSyncCR3HandlerVirtualReset, STAMTYPE_PROFILE, "/PGM/GC/SyncCR3/Handlers/VirtualReset", STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler resets.");
1376	STAM_REG(pVM, &pPGM->StatGCSyncCR3Global, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/Global", STAMUNIT_OCCURENCES, "The number of global CR3 syncs.");
1377	STAM_REG(pVM, &pPGM->StatGCSyncCR3NotGlobal, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/NotGlobal", STAMUNIT_OCCURENCES, "The number of non-global CR3 syncs.");
1378	STAM_REG(pVM, &pPGM->StatGCSyncCR3DstCacheHit, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/DstChacheHit", STAMUNIT_OCCURENCES, "The number of times we got some kind of a cache hit.");
1379	STAM_REG(pVM, &pPGM->StatGCSyncCR3DstFreed, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/DstFreed", STAMUNIT_OCCURENCES, "The number of times we've had to free a shadow entry.");
1380	STAM_REG(pVM, &pPGM->StatGCSyncCR3DstFreedSrcNP, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/DstFreedSrcNP", STAMUNIT_OCCURENCES, "The number of times we've had to free a shadow entry for which the source entry was not present.");
1381	STAM_REG(pVM, &pPGM->StatGCSyncCR3DstNotPresent, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/DstNotPresent", STAMUNIT_OCCURENCES, "The number of times we've encountered a not present shadow entry for a present guest entry.");
1382	STAM_REG(pVM, &pPGM->StatGCSyncCR3DstSkippedGlobalPD, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/DstSkippedGlobalPD", STAMUNIT_OCCURENCES, "The number of times a global page directory wasn't flushed.");
1383	STAM_REG(pVM, &pPGM->StatGCSyncCR3DstSkippedGlobalPT, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/DstSkippedGlobalPT", STAMUNIT_OCCURENCES, "The number of times a page table with only global entries wasn't flushed.");
1384
1385	STAM_REG(pVM, &pPGM->StatHCSyncCR3, STAMTYPE_PROFILE, "/PGM/HC/SyncCR3", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() body.");
1386	STAM_REG(pVM, &pPGM->StatHCSyncCR3Handlers, STAMTYPE_PROFILE, "/PGM/HC/SyncCR3/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() update handler section.");
1387	STAM_REG(pVM, &pPGM->StatHCSyncCR3HandlerVirtualUpdate, STAMTYPE_PROFILE, "/PGM/HC/SyncCR3/Handlers/VirtualUpdate",STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler updates.");
1388	STAM_REG(pVM, &pPGM->StatHCSyncCR3HandlerVirtualReset, STAMTYPE_PROFILE, "/PGM/HC/SyncCR3/Handlers/VirtualReset", STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler resets.");
1389	STAM_REG(pVM, &pPGM->StatHCSyncCR3Global, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/Global", STAMUNIT_OCCURENCES, "The number of global CR3 syncs.");
1390	STAM_REG(pVM, &pPGM->StatHCSyncCR3NotGlobal, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/NotGlobal", STAMUNIT_OCCURENCES, "The number of non-global CR3 syncs.");
1391	STAM_REG(pVM, &pPGM->StatHCSyncCR3DstCacheHit, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/DstChacheHit", STAMUNIT_OCCURENCES, "The number of times we got some kind of a cache hit.");
1392	STAM_REG(pVM, &pPGM->StatHCSyncCR3DstFreed, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/DstFreed", STAMUNIT_OCCURENCES, "The number of times we've had to free a shadow entry.");
1393	STAM_REG(pVM, &pPGM->StatHCSyncCR3DstFreedSrcNP, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/DstFreedSrcNP", STAMUNIT_OCCURENCES, "The number of times we've had to free a shadow entry for which the source entry was not present.");
1394	STAM_REG(pVM, &pPGM->StatHCSyncCR3DstNotPresent, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/DstNotPresent", STAMUNIT_OCCURENCES, "The number of times we've encountered a not present shadow entry for a present guest entry.");
1395	STAM_REG(pVM, &pPGM->StatHCSyncCR3DstSkippedGlobalPD, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/DstSkippedGlobalPD", STAMUNIT_OCCURENCES, "The number of times a global page directory wasn't flushed.");
1396	STAM_REG(pVM, &pPGM->StatHCSyncCR3DstSkippedGlobalPT, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/DstSkippedGlobalPT", STAMUNIT_OCCURENCES, "The number of times a page table with only global entries wasn't flushed.");
1397
1398	STAM_REG(pVM, &pPGM->StatVirtHandleSearchByPhysGC, STAMTYPE_PROFILE, "/PGM/VirtHandler/SearchByPhys/GC", STAMUNIT_TICKS_PER_CALL, "Profiling of pgmHandlerVirtualFindByPhysAddr in GC.");
1399	STAM_REG(pVM, &pPGM->StatVirtHandleSearchByPhysHC, STAMTYPE_PROFILE, "/PGM/VirtHandler/SearchByPhys/HC", STAMUNIT_TICKS_PER_CALL, "Profiling of pgmHandlerVirtualFindByPhysAddr in HC.");
1400	STAM_REG(pVM, &pPGM->StatHandlePhysicalReset, STAMTYPE_COUNTER, "/PGM/HC/HandlerPhysicalReset", STAMUNIT_OCCURENCES, "The number of times PGMR3HandlerPhysicalReset is called.");
1401
1402	STAM_REG(pVM, &pPGM->StatHCGstModifyPage, STAMTYPE_PROFILE, "/PGM/HC/GstModifyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGstModifyPage() body.");
1403	STAM_REG(pVM, &pPGM->StatGCGstModifyPage, STAMTYPE_PROFILE, "/PGM/GC/GstModifyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGstModifyPage() body.");
1404
1405	STAM_REG(pVM, &pPGM->StatSynPT4kGC, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/4k", STAMUNIT_OCCURENCES, "Nr of 4k PT syncs");
1406	STAM_REG(pVM, &pPGM->StatSynPT4kHC, STAMTYPE_COUNTER, "/PGM/HC/SyncPT/4k", STAMUNIT_OCCURENCES, "Nr of 4k PT syncs");
1407	STAM_REG(pVM, &pPGM->StatSynPT4MGC, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/4M", STAMUNIT_OCCURENCES, "Nr of 4M PT syncs");
1408	STAM_REG(pVM, &pPGM->StatSynPT4MHC, STAMTYPE_COUNTER, "/PGM/HC/SyncPT/4M", STAMUNIT_OCCURENCES, "Nr of 4M PT syncs");
1409
1410	STAM_REG(pVM, &pPGM->StatDynRamTotal, STAMTYPE_COUNTER, "/PGM/RAM/TotalAlloc", STAMUNIT_MEGABYTES, "Allocated mbs of guest ram.");
1411	STAM_REG(pVM, &pPGM->StatDynRamGrow, STAMTYPE_COUNTER, "/PGM/RAM/Grow", STAMUNIT_OCCURENCES, "Nr of pgmr3PhysGrowRange calls.");
1412
1413	STAM_REG(pVM, &pPGM->StatPageHCMapTlbHits, STAMTYPE_COUNTER, "/PGM/PageHCMap/TlbHits", STAMUNIT_OCCURENCES, "TLB hits.");
1414	STAM_REG(pVM, &pPGM->StatPageHCMapTlbMisses, STAMTYPE_COUNTER, "/PGM/PageHCMap/TlbMisses", STAMUNIT_OCCURENCES, "TLB misses.");
1415	STAM_REG(pVM, &pPGM->ChunkR3Map.c, STAMTYPE_U32, "/PGM/ChunkR3Map/c", STAMUNIT_OCCURENCES, "Number of mapped chunks.");
1416	STAM_REG(pVM, &pPGM->ChunkR3Map.cMax, STAMTYPE_U32, "/PGM/ChunkR3Map/cMax", STAMUNIT_OCCURENCES, "Maximum number of mapped chunks.");
1417	STAM_REG(pVM, &pPGM->StatChunkR3MapTlbHits, STAMTYPE_COUNTER, "/PGM/ChunkR3Map/TlbHits", STAMUNIT_OCCURENCES, "TLB hits.");
1418	STAM_REG(pVM, &pPGM->StatChunkR3MapTlbMisses, STAMTYPE_COUNTER, "/PGM/ChunkR3Map/TlbMisses", STAMUNIT_OCCURENCES, "TLB misses.");
1419	STAM_REG(pVM, &pPGM->StatPageReplaceShared, STAMTYPE_COUNTER, "/PGM/Page/ReplacedShared", STAMUNIT_OCCURENCES, "Times a shared page was replaced.");
1420	STAM_REG(pVM, &pPGM->StatPageReplaceZero, STAMTYPE_COUNTER, "/PGM/Page/ReplacedZero", STAMUNIT_OCCURENCES, "Times the zero page was replaced.");
1421	STAM_REG(pVM, &pPGM->StatPageHandyAllocs, STAMTYPE_COUNTER, "/PGM/Page/HandyAllocs", STAMUNIT_OCCURENCES, "Number of times we've allocated more handy pages.");
1422	STAM_REG(pVM, &pPGM->cAllPages, STAMTYPE_U32, "/PGM/Page/cAllPages", STAMUNIT_OCCURENCES, "The total number of pages.");
1423	STAM_REG(pVM, &pPGM->cPrivatePages, STAMTYPE_U32, "/PGM/Page/cPrivatePages", STAMUNIT_OCCURENCES, "The number of private pages.");
1424	STAM_REG(pVM, &pPGM->cSharedPages, STAMTYPE_U32, "/PGM/Page/cSharedPages", STAMUNIT_OCCURENCES, "The number of shared pages.");
1425	STAM_REG(pVM, &pPGM->cZeroPages, STAMTYPE_U32, "/PGM/Page/cZeroPages", STAMUNIT_OCCURENCES, "The number of zero backed pages.");
1426
1427	#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
1428	STAM_REG(pVM, &pPGM->StatTrackVirgin, STAMTYPE_COUNTER, "/PGM/Track/Virgin", STAMUNIT_OCCURENCES, "The number of first time shadowings");
1429	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.");
1430	STAM_REG(pVM, &pPGM->StatTrackAliasedMany, STAMTYPE_COUNTER, "/PGM/Track/AliasedMany", STAMUNIT_OCCURENCES, "The number of times we're tracking using cRef2.");
1431	STAM_REG(pVM, &pPGM->StatTrackAliasedLots, STAMTYPE_COUNTER, "/PGM/Track/AliasedLots", STAMUNIT_OCCURENCES, "The number of times we're hitting pages which has overflowed cRef2");
1432	STAM_REG(pVM, &pPGM->StatTrackOverflows, STAMTYPE_COUNTER, "/PGM/Track/Overflows", STAMUNIT_OCCURENCES, "The number of times the extent list grows to long.");
1433	STAM_REG(pVM, &pPGM->StatTrackDeref, STAMTYPE_PROFILE, "/PGM/Track/Deref", STAMUNIT_OCCURENCES, "Profiling of SyncPageWorkerTrackDeref (expensive).");
1434	#endif
1435
1436	for (unsigned i = 0; i < X86_PG_ENTRIES; i++)
1437	{
1438	/** @todo r=bird: We need a STAMR3RegisterF()! */
1439	char szName[32];
1440
1441	RTStrPrintf(szName, sizeof(szName), "/PGM/GC/PD/Trap0e/%04X", i);
1442	int rc = STAMR3Register(pVM, &pPGM->StatGCTrap0ePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "The number of traps in page directory n.");
1443	AssertRC(rc);
1444
1445	RTStrPrintf(szName, sizeof(szName), "/PGM/GC/PD/SyncPt/%04X", i);
1446	rc = STAMR3Register(pVM, &pPGM->StatGCSyncPtPD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "The number of syncs per PD n.");
1447	AssertRC(rc);
1448
1449	RTStrPrintf(szName, sizeof(szName), "/PGM/GC/PD/SyncPage/%04X", i);
1450	rc = STAMR3Register(pVM, &pPGM->StatGCSyncPagePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "The number of out of sync pages per page directory n.");
1451	AssertRC(rc);
1452	}
1453	}
1454	#endif /* VBOX_WITH_STATISTICS */
1455
1456	/**
1457	* Init the PGM bits that rely on VMMR0 and MM to be fully initialized.
1458	*
1459	* The dynamic mapping area will also be allocated and initialized at this
1460	* time. We could allocate it during PGMR3Init of course, but the mapping
1461	* wouldn't be allocated at that time preventing us from setting up the
1462	* page table entries with the dummy page.
1463	*
1464	* @returns VBox status code.
1465	* @param pVM VM handle.
1466	*/
1467	PGMR3DECL(int) PGMR3InitDynMap(PVM pVM)
1468	{
1469	/*
1470	* Reserve space for mapping the paging pages into guest context.
1471	*/
1472	int rc = MMR3HyperReserve(pVM, PAGE_SIZE * (2 + ELEMENTS(pVM->pgm.s.apHCPaePDs) + 1 + 2 + 2), "Paging", &pVM->pgm.s.pGC32BitPD);
1473	AssertRCReturn(rc, rc);
1474	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1475
1476	/*
1477	* Reserve space for the dynamic mappings.
1478	*/
1479	/** @todo r=bird: Need to verify that the checks for crossing PTs are correct here. They seems to be assuming 4MB PTs.. */
1480	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping", &pVM->pgm.s.pbDynPageMapBaseGC);
1481	if ( VBOX_SUCCESS(rc)
1482	&& (pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_SHIFT) != ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_SHIFT))
1483	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping not crossing", &pVM->pgm.s.pbDynPageMapBaseGC);
1484	if (VBOX_SUCCESS(rc))
1485	{
1486	AssertRelease((pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_SHIFT) == ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_SHIFT));
1487	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1488	}
1489	return rc;
1490	}
1491
1492
1493	/**
1494	* Ring-3 init finalizing.
1495	*
1496	* @returns VBox status code.
1497	* @param pVM The VM handle.
1498	*/
1499	PGMR3DECL(int) PGMR3InitFinalize(PVM pVM)
1500	{
1501	/*
1502	* Map the paging pages into the guest context.
1503	*/
1504	RTGCPTR GCPtr = pVM->pgm.s.pGC32BitPD;
1505	AssertReleaseReturn(GCPtr, VERR_INTERNAL_ERROR);
1506
1507	int rc = PGMMap(pVM, GCPtr, pVM->pgm.s.HCPhys32BitPD, PAGE_SIZE, 0);
1508	AssertRCReturn(rc, rc);
1509	pVM->pgm.s.pGC32BitPD = GCPtr;
1510	GCPtr += PAGE_SIZE;
1511	GCPtr += PAGE_SIZE; /* reserved page */
1512
1513	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apHCPaePDs); i++)
1514	{
1515	rc = PGMMap(pVM, GCPtr, pVM->pgm.s.aHCPhysPaePDs[i], PAGE_SIZE, 0);
1516	AssertRCReturn(rc, rc);
1517	pVM->pgm.s.apGCPaePDs[i] = GCPtr;
1518	GCPtr += PAGE_SIZE;
1519	}
1520	/* A bit of paranoia is justified. */
1521	AssertRelease((RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[0] + PAGE_SIZE == (RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[1]);
1522	AssertRelease((RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[1] + PAGE_SIZE == (RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[2]);
1523	AssertRelease((RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[2] + PAGE_SIZE == (RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[3]);
1524	GCPtr += PAGE_SIZE; /* reserved page */
1525
1526	rc = PGMMap(pVM, GCPtr, pVM->pgm.s.HCPhysPaePDPTR, PAGE_SIZE, 0);
1527	AssertRCReturn(rc, rc);
1528	pVM->pgm.s.pGCPaePDPTR = GCPtr;
1529	GCPtr += PAGE_SIZE;
1530	GCPtr += PAGE_SIZE; /* reserved page */
1531
1532	rc = PGMMap(pVM, GCPtr, pVM->pgm.s.HCPhysPaePML4, PAGE_SIZE, 0);
1533	AssertRCReturn(rc, rc);
1534	pVM->pgm.s.pGCPaePML4 = GCPtr;
1535	GCPtr += PAGE_SIZE;
1536	GCPtr += PAGE_SIZE; /* reserved page */
1537
1538
1539	/*
1540	* Reserve space for the dynamic mappings.
1541	* Initialize the dynamic mapping pages with dummy pages to simply the cache.
1542	*/
1543	/* get the pointer to the page table entries. */
1544	PPGMMAPPING pMapping = pgmGetMapping(pVM, pVM->pgm.s.pbDynPageMapBaseGC);
1545	AssertRelease(pMapping);
1546	const uintptr_t off = pVM->pgm.s.pbDynPageMapBaseGC - pMapping->GCPtr;
1547	const unsigned iPT = off >> X86_PD_SHIFT;
1548	const unsigned iPG = (off >> X86_PT_SHIFT) & X86_PT_MASK;
1549	pVM->pgm.s.paDynPageMap32BitPTEsGC = pMapping->aPTs[iPT].pPTGC + iPG * sizeof(pMapping->aPTs[0].pPTR3->a[0]);
1550	pVM->pgm.s.paDynPageMapPaePTEsGC = pMapping->aPTs[iPT].paPaePTsGC + iPG * sizeof(pMapping->aPTs[0].paPaePTsR3->a[0]);
1551
1552	/* init cache */
1553	RTHCPHYS HCPhysDummy = MMR3PageDummyHCPhys(pVM);
1554	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.aHCPhysDynPageMapCache); i++)
1555	pVM->pgm.s.aHCPhysDynPageMapCache[i] = HCPhysDummy;
1556
1557	for (unsigned i = 0; i < MM_HYPER_DYNAMIC_SIZE; i += PAGE_SIZE)
1558	{
1559	rc = PGMMap(pVM, pVM->pgm.s.pbDynPageMapBaseGC + i, HCPhysDummy, PAGE_SIZE, 0);
1560	AssertRCReturn(rc, rc);
1561	}
1562
1563	return rc;
1564	}
1565
1566
1567	/**
1568	* Applies relocations to data and code managed by this
1569	* component. This function will be called at init and
1570	* whenever the VMM need to relocate it self inside the GC.
1571	*
1572	* @param pVM The VM.
1573	* @param offDelta Relocation delta relative to old location.
1574	*/
1575	PGMR3DECL(void) PGMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
1576	{
1577	LogFlow(("PGMR3Relocate\n"));
1578
1579	/*
1580	* Paging stuff.
1581	*/
1582	pVM->pgm.s.GCPtrCR3Mapping += offDelta;
1583	/** @todo move this into shadow and guest specific relocation functions. */
1584	AssertMsg(pVM->pgm.s.pGC32BitPD, ("Init order, no relocation before paging is initialized!\n"));
1585	pVM->pgm.s.pGC32BitPD += offDelta;
1586	pVM->pgm.s.pGuestPDGC += offDelta;
1587	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apGCPaePDs); i++)
1588	pVM->pgm.s.apGCPaePDs[i] += offDelta;
1589	pVM->pgm.s.pGCPaePDPTR += offDelta;
1590	pVM->pgm.s.pGCPaePML4 += offDelta;
1591
1592	pgmR3ModeDataInit(pVM, true /* resolve GC/R0 symbols */);
1593	pgmR3ModeDataSwitch(pVM, pVM->pgm.s.enmShadowMode, pVM->pgm.s.enmGuestMode);
1594
1595	PGM_SHW_PFN(Relocate, pVM)(pVM, offDelta);
1596	PGM_GST_PFN(Relocate, pVM)(pVM, offDelta);
1597	PGM_BTH_PFN(Relocate, pVM)(pVM, offDelta);
1598
1599	/*
1600	* Trees.
1601	*/
1602	pVM->pgm.s.pTreesGC = MMHyperHC2GC(pVM, pVM->pgm.s.pTreesHC);
1603
1604	/*
1605	* Ram ranges.
1606	*/
1607	if (pVM->pgm.s.pRamRangesR3)
1608	{
1609	pVM->pgm.s.pRamRangesGC = MMHyperHC2GC(pVM, pVM->pgm.s.pRamRangesR3);
1610	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur->pNextR3; pCur = pCur->pNextR3)
1611	#ifdef VBOX_WITH_NEW_PHYS_CODE
1612	pCur->pNextGC = MMHyperR3ToGC(pVM, pCur->pNextR3);
1613	#else
1614	{
1615	pCur->pNextGC = MMHyperR3ToGC(pVM, pCur->pNextR3);
1616	if (pCur->pavHCChunkGC)
1617	pCur->pavHCChunkGC = MMHyperHC2GC(pVM, pCur->pavHCChunkHC);
1618	}
1619	#endif
1620	}
1621
1622	/*
1623	* Update the two page directories with all page table mappings.
1624	* (One or more of them have changed, that's why we're here.)
1625	*/
1626	pVM->pgm.s.pMappingsGC = MMHyperHC2GC(pVM, pVM->pgm.s.pMappingsR3);
1627	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur->pNextR3; pCur = pCur->pNextR3)
1628	pCur->pNextGC = MMHyperHC2GC(pVM, pCur->pNextR3);
1629
1630	/* Relocate GC addresses of Page Tables. */
1631	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
1632	{
1633	for (RTHCUINT i = 0; i < pCur->cPTs; i++)
1634	{
1635	pCur->aPTs[i].pPTGC = MMHyperR3ToGC(pVM, pCur->aPTs[i].pPTR3);
1636	pCur->aPTs[i].paPaePTsGC = MMHyperR3ToGC(pVM, pCur->aPTs[i].paPaePTsR3);
1637	}
1638	}
1639
1640	/*
1641	* Dynamic page mapping area.
1642	*/
1643	pVM->pgm.s.paDynPageMap32BitPTEsGC += offDelta;
1644	pVM->pgm.s.paDynPageMapPaePTEsGC += offDelta;
1645	pVM->pgm.s.pbDynPageMapBaseGC += offDelta;
1646
1647	/*
1648	* The Zero page.
1649	*/
1650	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
1651	AssertRelease(pVM->pgm.s.pvZeroPgR0);
1652
1653	/*
1654	* Physical and virtual handlers.
1655	*/
1656	RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysHandlers, true, pgmR3RelocatePhysHandler, &offDelta);
1657	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesHC->VirtHandlers, true, pgmR3RelocateVirtHandler, &offDelta);
1658	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesHC->HyperVirtHandlers, true, pgmR3RelocateHyperVirtHandler, &offDelta);
1659
1660	/*
1661	* The page pool.
1662	*/
1663	pgmR3PoolRelocate(pVM);
1664	}
1665
1666
1667	/**
1668	* Callback function for relocating a physical access handler.
1669	*
1670	* @returns 0 (continue enum)
1671	* @param pNode Pointer to a PGMPHYSHANDLER node.
1672	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
1673	* not certain the delta will fit in a void pointer for all possible configs.
1674	*/
1675	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser)
1676	{
1677	PPGMPHYSHANDLER pHandler = (PPGMPHYSHANDLER)pNode;
1678	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
1679	if (pHandler->pfnHandlerGC)
1680	pHandler->pfnHandlerGC += offDelta;
1681	if ((RTGCUINTPTR)pHandler->pvUserGC >= 0x10000)
1682	pHandler->pvUserGC += offDelta;
1683	return 0;
1684	}
1685
1686
1687	/**
1688	* Callback function for relocating a virtual access handler.
1689	*
1690	* @returns 0 (continue enum)
1691	* @param pNode Pointer to a PGMVIRTHANDLER node.
1692	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
1693	* not certain the delta will fit in a void pointer for all possible configs.
1694	*/
1695	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
1696	{
1697	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
1698	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
1699	Assert( pHandler->enmType == PGMVIRTHANDLERTYPE_ALL
1700	\|\| pHandler->enmType == PGMVIRTHANDLERTYPE_WRITE);
1701	Assert(pHandler->pfnHandlerGC);
1702	pHandler->pfnHandlerGC += offDelta;
1703	return 0;
1704	}
1705
1706
1707	/**
1708	* Callback function for relocating a virtual access handler for the hypervisor mapping.
1709	*
1710	* @returns 0 (continue enum)
1711	* @param pNode Pointer to a PGMVIRTHANDLER node.
1712	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
1713	* not certain the delta will fit in a void pointer for all possible configs.
1714	*/
1715	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
1716	{
1717	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
1718	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
1719	Assert(pHandler->enmType == PGMVIRTHANDLERTYPE_HYPERVISOR);
1720	Assert(pHandler->pfnHandlerGC);
1721	pHandler->pfnHandlerGC += offDelta;
1722	return 0;
1723	}
1724
1725
1726	/**
1727	* The VM is being reset.
1728	*
1729	* For the PGM component this means that any PD write monitors
1730	* needs to be removed.
1731	*
1732	* @param pVM VM handle.
1733	*/
1734	PGMR3DECL(void) PGMR3Reset(PVM pVM)
1735	{
1736	LogFlow(("PGMR3Reset:\n"));
1737	VM_ASSERT_EMT(pVM);
1738
1739	/*
1740	* Unfix any fixed mappings and disable CR3 monitoring.
1741	*/
1742	pVM->pgm.s.fMappingsFixed = false;
1743	pVM->pgm.s.GCPtrMappingFixed = 0;
1744	pVM->pgm.s.cbMappingFixed = 0;
1745
1746	int rc = PGM_GST_PFN(UnmonitorCR3, pVM)(pVM);
1747	AssertRC(rc);
1748	#ifdef DEBUG
1749	DBGFR3InfoLog(pVM, "mappings", NULL);
1750	DBGFR3InfoLog(pVM, "handlers", "all nostat");
1751	#endif
1752
1753	/*
1754	* Reset the shadow page pool.
1755	*/
1756	pgmR3PoolReset(pVM);
1757
1758	/*
1759	* Re-init other members.
1760	*/
1761	pVM->pgm.s.fA20Enabled = true;
1762
1763	/*
1764	* Clear the FFs PGM owns.
1765	*/
1766	VM_FF_CLEAR(pVM, VM_FF_PGM_SYNC_CR3);
1767	VM_FF_CLEAR(pVM, VM_FF_PGM_SYNC_CR3_NON_GLOBAL);
1768
1769	/*
1770	* Zero memory.
1771	*/
1772	for (PPGMRAMRANGE pRam = pVM->pgm.s.pRamRangesR3; pRam; pRam = pRam->pNextR3)
1773	{
1774	unsigned iPage = pRam->cb >> PAGE_SHIFT;
1775	while (iPage-- > 0)
1776	{
1777	if (pRam->aPages[iPage].HCPhys & (MM_RAM_FLAGS_RESERVED \| MM_RAM_FLAGS_ROM \| MM_RAM_FLAGS_MMIO \| MM_RAM_FLAGS_MMIO2)) /** @todo PAGE FLAGS */
1778	{
1779	/* shadow ram is reloaded elsewhere. */
1780	Log4(("PGMR3Reset: not clearing phys page %RGp due to flags %RHp\n", pRam->GCPhys + (iPage << PAGE_SHIFT), pRam->aPages[iPage].HCPhys & (MM_RAM_FLAGS_RESERVED \| MM_RAM_FLAGS_ROM \| MM_RAM_FLAGS_MMIO))); /** @todo PAGE FLAGS */
1781	continue;
1782	}
1783	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
1784	{
1785	unsigned iChunk = iPage >> (PGM_DYNAMIC_CHUNK_SHIFT - PAGE_SHIFT);
1786	if (pRam->pavHCChunkHC[iChunk])
1787	ASMMemZero32((char *)pRam->pavHCChunkHC[iChunk] + ((iPage << PAGE_SHIFT) & PGM_DYNAMIC_CHUNK_OFFSET_MASK), PAGE_SIZE);
1788	}
1789	else
1790	ASMMemZero32((char *)pRam->pvHC + (iPage << PAGE_SHIFT), PAGE_SIZE);
1791	}
1792	}
1793
1794	#ifdef VBOX_WITH_NEW_PHYS_CODE
1795	/*
1796	* Zero shadow ROM pages.
1797	*/
1798	rc = pgmR3PhysRomReset(pVM);
1799	#endif
1800
1801	/*
1802	* Switch mode back to real mode.
1803	*/
1804	rc = pgmR3ChangeMode(pVM, PGMMODE_REAL);
1805	AssertReleaseRC(rc);
1806	STAM_REL_COUNTER_RESET(&pVM->pgm.s.cGuestModeChanges);
1807	}
1808
1809
1810	/**
1811	* Terminates the PGM.
1812	*
1813	* @returns VBox status code.
1814	* @param pVM Pointer to VM structure.
1815	*/
1816	PGMR3DECL(int) PGMR3Term(PVM pVM)
1817	{
1818	return PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
1819	}
1820
1821
1822	#ifdef VBOX_STRICT
1823	/**
1824	* VM state change callback for clearing fNoMorePhysWrites after
1825	* a snapshot has been created.
1826	*/
1827	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser)
1828	{
1829	if (enmState == VMSTATE_RUNNING)
1830	pVM->pgm.s.fNoMorePhysWrites = false;
1831	}
1832	#endif
1833
1834
1835	/**
1836	* Execute state save operation.
1837	*
1838	* @returns VBox status code.
1839	* @param pVM VM Handle.
1840	* @param pSSM SSM operation handle.
1841	*/
1842	static DECLCALLBACK(int) pgmR3Save(PVM pVM, PSSMHANDLE pSSM)
1843	{
1844	PPGM pPGM = &pVM->pgm.s;
1845
1846	/* No more writes to physical memory after this point! */
1847	pVM->pgm.s.fNoMorePhysWrites = true;
1848
1849	/*
1850	* Save basic data (required / unaffected by relocation).
1851	*/
1852	#if 1
1853	SSMR3PutBool(pSSM, pPGM->fMappingsFixed);
1854	#else
1855	SSMR3PutUInt(pSSM, pPGM->fMappingsFixed);
1856	#endif
1857	SSMR3PutGCPtr(pSSM, pPGM->GCPtrMappingFixed);
1858	SSMR3PutU32(pSSM, pPGM->cbMappingFixed);
1859	SSMR3PutUInt(pSSM, pPGM->cbRamSize);
1860	SSMR3PutGCPhys(pSSM, pPGM->GCPhysA20Mask);
1861	SSMR3PutUInt(pSSM, pPGM->fA20Enabled);
1862	SSMR3PutUInt(pSSM, pPGM->fSyncFlags);
1863	SSMR3PutUInt(pSSM, pPGM->enmGuestMode);
1864	SSMR3PutU32(pSSM, ~0); /* Separator. */
1865
1866	/*
1867	* The guest mappings.
1868	*/
1869	uint32_t i = 0;
1870	for (PPGMMAPPING pMapping = pPGM->pMappingsR3; pMapping; pMapping = pMapping->pNextR3, i++)
1871	{
1872	SSMR3PutU32(pSSM, i);
1873	SSMR3PutStrZ(pSSM, pMapping->pszDesc); /* This is the best unique id we have... */
1874	SSMR3PutGCPtr(pSSM, pMapping->GCPtr);
1875	SSMR3PutGCUIntPtr(pSSM, pMapping->cPTs);
1876	/* flags are done by the mapping owners! */
1877	}
1878	SSMR3PutU32(pSSM, ~0); /* terminator. */
1879
1880	/*
1881	* Ram range flags and bits.
1882	*/
1883	i = 0;
1884	for (PPGMRAMRANGE pRam = pPGM->pRamRangesR3; pRam; pRam = pRam->pNextR3, i++)
1885	{
1886	/** @todo MMIO ranges may move (PCI reconfig), we currently assume they don't. */
1887
1888	SSMR3PutU32(pSSM, i);
1889	SSMR3PutGCPhys(pSSM, pRam->GCPhys);
1890	SSMR3PutGCPhys(pSSM, pRam->GCPhysLast);
1891	SSMR3PutGCPhys(pSSM, pRam->cb);
1892	SSMR3PutU8(pSSM, !!pRam->pvHC); /* boolean indicating memory or not. */
1893
1894	/* Flags. */
1895	const unsigned cPages = pRam->cb >> PAGE_SHIFT;
1896	for (unsigned iPage = 0; iPage < cPages; iPage++)
1897	SSMR3PutU16(pSSM, (uint16_t)(pRam->aPages[iPage].HCPhys & ~X86_PTE_PAE_PG_MASK)); /** @todo PAGE FLAGS */
1898
1899	/* any memory associated with the range. */
1900	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
1901	{
1902	for (unsigned iChunk = 0; iChunk < (pRam->cb >> PGM_DYNAMIC_CHUNK_SHIFT); iChunk++)
1903	{
1904	if (pRam->pavHCChunkHC[iChunk])
1905	{
1906	SSMR3PutU8(pSSM, 1); /* chunk present */
1907	SSMR3PutMem(pSSM, pRam->pavHCChunkHC[iChunk], PGM_DYNAMIC_CHUNK_SIZE);
1908	}
1909	else
1910	SSMR3PutU8(pSSM, 0); /* no chunk present */
1911	}
1912	}
1913	else if (pRam->pvHC)
1914	{
1915	int rc = SSMR3PutMem(pSSM, pRam->pvHC, pRam->cb);
1916	if (VBOX_FAILURE(rc))
1917	{
1918	Log(("pgmR3Save: SSMR3PutMem(, %p, %#x) -> %Vrc\n", pRam->pvHC, pRam->cb, rc));
1919	return rc;
1920	}
1921	}
1922	}
1923	return SSMR3PutU32(pSSM, ~0); /* terminator. */
1924	}
1925
1926
1927	/**
1928	* Execute state load operation.
1929	*
1930	* @returns VBox status code.
1931	* @param pVM VM Handle.
1932	* @param pSSM SSM operation handle.
1933	* @param u32Version Data layout version.
1934	*/
1935	static DECLCALLBACK(int) pgmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
1936	{
1937	/*
1938	* Validate version.
1939	*/
1940	if (u32Version != PGM_SAVED_STATE_VERSION)
1941	{
1942	Log(("pgmR3Load: Invalid version u32Version=%d (current %d)!\n", u32Version, PGM_SAVED_STATE_VERSION));
1943	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1944	}
1945
1946	/*
1947	* Call the reset function to make sure all the memory is cleared.
1948	*/
1949	PGMR3Reset(pVM);
1950
1951	/*
1952	* Load basic data (required / unaffected by relocation).
1953	*/
1954	PPGM pPGM = &pVM->pgm.s;
1955	#if 1
1956	SSMR3GetBool(pSSM, &pPGM->fMappingsFixed);
1957	#else
1958	uint32_t u;
1959	SSMR3GetU32(pSSM, &u);
1960	pPGM->fMappingsFixed = u;
1961	#endif
1962	SSMR3GetGCPtr(pSSM, &pPGM->GCPtrMappingFixed);
1963	SSMR3GetU32(pSSM, &pPGM->cbMappingFixed);
1964
1965	RTUINT cbRamSize;
1966	int rc = SSMR3GetU32(pSSM, &cbRamSize);
1967	if (VBOX_FAILURE(rc))
1968	return rc;
1969	if (cbRamSize != pPGM->cbRamSize)
1970	return VERR_SSM_LOAD_MEMORY_SIZE_MISMATCH;
1971	SSMR3GetGCPhys(pSSM, &pPGM->GCPhysA20Mask);
1972	SSMR3GetUInt(pSSM, &pPGM->fA20Enabled);
1973	SSMR3GetUInt(pSSM, &pPGM->fSyncFlags);
1974	RTUINT uGuestMode;
1975	SSMR3GetUInt(pSSM, &uGuestMode);
1976	pPGM->enmGuestMode = (PGMMODE)uGuestMode;
1977
1978	/* check separator. */
1979	uint32_t u32Sep;
1980	SSMR3GetU32(pSSM, &u32Sep);
1981	if (VBOX_FAILURE(rc))
1982	return rc;
1983	if (u32Sep != (uint32_t)~0)
1984	{
1985	AssertMsgFailed(("u32Sep=%#x (first)\n", u32Sep));
1986	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
1987	}
1988
1989	/*
1990	* The guest mappings.
1991	*/
1992	uint32_t i = 0;
1993	for (;; i++)
1994	{
1995	/* Check the seqence number / separator. */
1996	rc = SSMR3GetU32(pSSM, &u32Sep);
1997	if (VBOX_FAILURE(rc))
1998	return rc;
1999	if (u32Sep == ~0U)
2000	break;
2001	if (u32Sep != i)
2002	{
2003	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2004	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2005	}
2006
2007	/* get the mapping details. */
2008	char szDesc[256];
2009	szDesc[0] = '\0';
2010	rc = SSMR3GetStrZ(pSSM, szDesc, sizeof(szDesc));
2011	if (VBOX_FAILURE(rc))
2012	return rc;
2013	RTGCPTR GCPtr;
2014	SSMR3GetGCPtr(pSSM, &GCPtr);
2015	RTGCUINTPTR cPTs;
2016	rc = SSMR3GetU32(pSSM, &cPTs);
2017	if (VBOX_FAILURE(rc))
2018	return rc;
2019
2020	/* find matching range. */
2021	PPGMMAPPING pMapping;
2022	for (pMapping = pPGM->pMappingsR3; pMapping; pMapping = pMapping->pNextR3)
2023	if ( pMapping->cPTs == cPTs
2024	&& !strcmp(pMapping->pszDesc, szDesc))
2025	break;
2026	if (!pMapping)
2027	{
2028	LogRel(("Couldn't find mapping: cPTs=%#x szDesc=%s (GCPtr=%VGv)\n",
2029	cPTs, szDesc, GCPtr));
2030	AssertFailed();
2031	return VERR_SSM_LOAD_CONFIG_MISMATCH;
2032	}
2033
2034	/* relocate it. */
2035	if (pMapping->GCPtr != GCPtr)
2036	{
2037	AssertMsg((GCPtr >> X86_PD_SHIFT << X86_PD_SHIFT) == GCPtr, ("GCPtr=%VGv\n", GCPtr));
2038	#if HC_ARCH_BITS == 64
2039	LogRel(("Mapping: %VGv -> %VGv %s\n", pMapping->GCPtr, GCPtr, pMapping->pszDesc));
2040	#endif
2041	pgmR3MapRelocate(pVM, pMapping, pMapping->GCPtr >> X86_PD_SHIFT, GCPtr >> X86_PD_SHIFT);
2042	}
2043	else
2044	Log(("pgmR3Load: '%s' needed no relocation (%VGv)\n", szDesc, GCPtr));
2045	}
2046
2047	/*
2048	* Ram range flags and bits.
2049	*/
2050	i = 0;
2051	for (PPGMRAMRANGE pRam = pPGM->pRamRangesR3; pRam; pRam = pRam->pNextR3, i++)
2052	{
2053	/** @todo MMIO ranges may move (PCI reconfig), we currently assume they don't. */
2054	/* Check the seqence number / separator. */
2055	rc = SSMR3GetU32(pSSM, &u32Sep);
2056	if (VBOX_FAILURE(rc))
2057	return rc;
2058	if (u32Sep == ~0U)
2059	break;
2060	if (u32Sep != i)
2061	{
2062	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2063	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2064	}
2065
2066	/* Get the range details. */
2067	RTGCPHYS GCPhys;
2068	SSMR3GetGCPhys(pSSM, &GCPhys);
2069	RTGCPHYS GCPhysLast;
2070	SSMR3GetGCPhys(pSSM, &GCPhysLast);
2071	RTGCPHYS cb;
2072	SSMR3GetGCPhys(pSSM, &cb);
2073	uint8_t fHaveBits;
2074	rc = SSMR3GetU8(pSSM, &fHaveBits);
2075	if (VBOX_FAILURE(rc))
2076	return rc;
2077	if (fHaveBits & ~1)
2078	{
2079	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2080	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2081	}
2082
2083	/* Match it up with the current range. */
2084	if ( GCPhys != pRam->GCPhys
2085	\|\| GCPhysLast != pRam->GCPhysLast
2086	\|\| cb != pRam->cb
2087	\|\| fHaveBits != !!pRam->pvHC)
2088	{
2089	LogRel(("Ram range: %VGp-%VGp %VGp bytes %s\n"
2090	"State : %VGp-%VGp %VGp bytes %s\n",
2091	pRam->GCPhys, pRam->GCPhysLast, pRam->cb, pRam->pvHC ? "bits" : "nobits",
2092	GCPhys, GCPhysLast, cb, fHaveBits ? "bits" : "nobits"));
2093	/*
2094	* If we're loading a state for debugging purpose, don't make a fuss if
2095	* the MMIO[2] and ROM stuff isn't 100% right, just skip the mismatches.
2096	*/
2097	if ( SSMR3HandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT
2098	\|\| GCPhys < 8 * _1M)
2099	AssertFailedReturn(VERR_SSM_LOAD_CONFIG_MISMATCH);
2100
2101	RTGCPHYS cPages = ((GCPhysLast - GCPhys) + 1) >> PAGE_SHIFT;
2102	while (cPages-- > 0)
2103	{
2104	uint16_t u16Ignore;
2105	SSMR3GetU16(pSSM, &u16Ignore);
2106	}
2107	continue;
2108	}
2109
2110	/* Flags. */
2111	const unsigned cPages = pRam->cb >> PAGE_SHIFT;
2112	for (unsigned iPage = 0; iPage < cPages; iPage++)
2113	{
2114	uint16_t u16 = 0;
2115	SSMR3GetU16(pSSM, &u16);
2116	u16 &= PAGE_OFFSET_MASK & ~( RT_BIT(4) \| RT_BIT(5) \| RT_BIT(6)
2117	\| RT_BIT(7) \| RT_BIT(8) \| RT_BIT(9) \| RT_BIT(10) );
2118	// &= MM_RAM_FLAGS_DYNAMIC_ALLOC \| MM_RAM_FLAGS_RESERVED \| MM_RAM_FLAGS_ROM \| MM_RAM_FLAGS_MMIO \| MM_RAM_FLAGS_MMIO2
2119	pRam->aPages[iPage].HCPhys = PGM_PAGE_GET_HCPHYS(&pRam->aPages[iPage]) \| (RTHCPHYS)u16; /** @todo PAGE FLAGS */
2120	}
2121
2122	/* any memory associated with the range. */
2123	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
2124	{
2125	for (unsigned iChunk = 0; iChunk < (pRam->cb >> PGM_DYNAMIC_CHUNK_SHIFT); iChunk++)
2126	{
2127	uint8_t fValidChunk;
2128
2129	rc = SSMR3GetU8(pSSM, &fValidChunk);
2130	if (VBOX_FAILURE(rc))
2131	return rc;
2132	if (fValidChunk > 1)
2133	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2134
2135	if (fValidChunk)
2136	{
2137	if (!pRam->pavHCChunkHC[iChunk])
2138	{
2139	rc = pgmr3PhysGrowRange(pVM, pRam->GCPhys + iChunk * PGM_DYNAMIC_CHUNK_SIZE);
2140	if (VBOX_FAILURE(rc))
2141	return rc;
2142	}
2143	Assert(pRam->pavHCChunkHC[iChunk]);
2144
2145	SSMR3GetMem(pSSM, pRam->pavHCChunkHC[iChunk], PGM_DYNAMIC_CHUNK_SIZE);
2146	}
2147	/* else nothing to do */
2148	}
2149	}
2150	else if (pRam->pvHC)
2151	{
2152	int rc = SSMR3GetMem(pSSM, pRam->pvHC, pRam->cb);
2153	if (VBOX_FAILURE(rc))
2154	{
2155	Log(("pgmR3Save: SSMR3GetMem(, %p, %#x) -> %Vrc\n", pRam->pvHC, pRam->cb, rc));
2156	return rc;
2157	}
2158	}
2159	}
2160
2161	/*
2162	* We require a full resync now.
2163	*/
2164	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3_NON_GLOBAL);
2165	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
2166	pPGM->fSyncFlags \|= PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL;
2167	pPGM->fPhysCacheFlushPending = true;
2168	pgmR3HandlerPhysicalUpdateAll(pVM);
2169
2170	/*
2171	* Change the paging mode.
2172	*/
2173	return pgmR3ChangeMode(pVM, pPGM->enmGuestMode);
2174	}
2175
2176
2177	/**
2178	* Show paging mode.
2179	*
2180	* @param pVM VM Handle.
2181	* @param pHlp The info helpers.
2182	* @param pszArgs "all" (default), "guest", "shadow" or "host".
2183	*/
2184	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2185	{
2186	/* digest argument. */
2187	bool fGuest, fShadow, fHost;
2188	if (pszArgs)
2189	pszArgs = RTStrStripL(pszArgs);
2190	if (!pszArgs \|\| !*pszArgs \|\| strstr(pszArgs, "all"))
2191	fShadow = fHost = fGuest = true;
2192	else
2193	{
2194	fShadow = fHost = fGuest = false;
2195	if (strstr(pszArgs, "guest"))
2196	fGuest = true;
2197	if (strstr(pszArgs, "shadow"))
2198	fShadow = true;
2199	if (strstr(pszArgs, "host"))
2200	fHost = true;
2201	}
2202
2203	/* print info. */
2204	if (fGuest)
2205	pHlp->pfnPrintf(pHlp, "Guest paging mode: %s, changed %RU64 times, A20 %s\n",
2206	PGMGetModeName(pVM->pgm.s.enmGuestMode), pVM->pgm.s.cGuestModeChanges.c,
2207	pVM->pgm.s.fA20Enabled ? "enabled" : "disabled");
2208	if (fShadow)
2209	pHlp->pfnPrintf(pHlp, "Shadow paging mode: %s\n", PGMGetModeName(pVM->pgm.s.enmShadowMode));
2210	if (fHost)
2211	{
2212	const char *psz;
2213	switch (pVM->pgm.s.enmHostMode)
2214	{
2215	case SUPPAGINGMODE_INVALID: psz = "invalid"; break;
2216	case SUPPAGINGMODE_32_BIT: psz = "32-bit"; break;
2217	case SUPPAGINGMODE_32_BIT_GLOBAL: psz = "32-bit+G"; break;
2218	case SUPPAGINGMODE_PAE: psz = "PAE"; break;
2219	case SUPPAGINGMODE_PAE_GLOBAL: psz = "PAE+G"; break;
2220	case SUPPAGINGMODE_PAE_NX: psz = "PAE+NX"; break;
2221	case SUPPAGINGMODE_PAE_GLOBAL_NX: psz = "PAE+G+NX"; break;
2222	case SUPPAGINGMODE_AMD64: psz = "AMD64"; break;
2223	case SUPPAGINGMODE_AMD64_GLOBAL: psz = "AMD64+G"; break;
2224	case SUPPAGINGMODE_AMD64_NX: psz = "AMD64+NX"; break;
2225	case SUPPAGINGMODE_AMD64_GLOBAL_NX: psz = "AMD64+G+NX"; break;
2226	default: psz = "unknown"; break;
2227	}
2228	pHlp->pfnPrintf(pHlp, "Host paging mode: %s\n", psz);
2229	}
2230	}
2231
2232
2233	/**
2234	* Dump registered MMIO ranges to the log.
2235	*
2236	* @param pVM VM Handle.
2237	* @param pHlp The info helpers.
2238	* @param pszArgs Arguments, ignored.
2239	*/
2240	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2241	{
2242	NOREF(pszArgs);
2243	pHlp->pfnPrintf(pHlp,
2244	"RAM ranges (pVM=%p)\n"
2245	"%.s %.s\n",
2246	pVM,
2247	sizeof(RTGCPHYS) * 4 + 1, "GC Phys Range ",
2248	sizeof(RTHCPTR) * 2, "pvHC ");
2249
2250	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
2251	pHlp->pfnPrintf(pHlp,
2252	"%RGp-%RGp %RHv %s\n",
2253	pCur->GCPhys,
2254	pCur->GCPhysLast,
2255	pCur->pvHC,
2256	pCur->pszDesc);
2257	}
2258
2259	/**
2260	* Dump the page directory to the log.
2261	*
2262	* @param pVM VM Handle.
2263	* @param pHlp The info helpers.
2264	* @param pszArgs Arguments, ignored.
2265	*/
2266	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2267	{
2268	/** @todo fix this! Convert the PGMR3DumpHierarchyHC functions to do guest stuff. */
2269	/* Big pages supported? */
2270	const bool fPSE = !!(CPUMGetGuestCR4(pVM) & X86_CR4_PSE);
2271	/* Global pages supported? */
2272	const bool fPGE = !!(CPUMGetGuestCR4(pVM) & X86_CR4_PGE);
2273
2274	NOREF(pszArgs);
2275
2276	/*
2277	* Get page directory addresses.
2278	*/
2279	PX86PD pPDSrc = pVM->pgm.s.pGuestPDHC;
2280	Assert(pPDSrc);
2281	Assert(MMPhysGCPhys2HCVirt(pVM, (RTGCPHYS)(CPUMGetGuestCR3(pVM) & X86_CR3_PAGE_MASK), sizeof(*pPDSrc)) == pPDSrc);
2282
2283	/*
2284	* Iterate the page directory.
2285	*/
2286	for (unsigned iPD = 0; iPD < ELEMENTS(pPDSrc->a); iPD++)
2287	{
2288	X86PDE PdeSrc = pPDSrc->a[iPD];
2289	if (PdeSrc.n.u1Present)
2290	{
2291	if (PdeSrc.b.u1Size && fPSE)
2292	{
2293	pHlp->pfnPrintf(pHlp,
2294	"%04X - %VGp P=%d U=%d RW=%d G=%d - BIG\n",
2295	iPD,
2296	PdeSrc.u & X86_PDE_PG_MASK,
2297	PdeSrc.b.u1Present, PdeSrc.b.u1User, PdeSrc.b.u1Write, PdeSrc.b.u1Global && fPGE);
2298	}
2299	else
2300	{
2301	pHlp->pfnPrintf(pHlp,
2302	"%04X - %VGp P=%d U=%d RW=%d [G=%d]\n",
2303	iPD,
2304	PdeSrc.u & X86_PDE4M_PG_MASK,
2305	PdeSrc.n.u1Present, PdeSrc.n.u1User, PdeSrc.n.u1Write, PdeSrc.b.u1Global && fPGE);
2306	}
2307	}
2308	}
2309	}
2310
2311
2312	/**
2313	* Serivce a VMMCALLHOST_PGM_LOCK call.
2314	*
2315	* @returns VBox status code.
2316	* @param pVM The VM handle.
2317	*/
2318	PDMR3DECL(int) PGMR3LockCall(PVM pVM)
2319	{
2320	return pgmLock(pVM);
2321	}
2322
2323
2324	/**
2325	* Converts a PGMMODE value to a PGM_TYPE_* \#define.
2326	*
2327	* @returns PGM_TYPE_*.
2328	* @param pgmMode The mode value to convert.
2329	*/
2330	DECLINLINE(unsigned) pgmModeToType(PGMMODE pgmMode)
2331	{
2332	switch (pgmMode)
2333	{
2334	case PGMMODE_REAL: return PGM_TYPE_REAL;
2335	case PGMMODE_PROTECTED: return PGM_TYPE_PROT;
2336	case PGMMODE_32_BIT: return PGM_TYPE_32BIT;
2337	case PGMMODE_PAE:
2338	case PGMMODE_PAE_NX: return PGM_TYPE_PAE;
2339	case PGMMODE_AMD64:
2340	case PGMMODE_AMD64_NX: return PGM_TYPE_AMD64;
2341	default:
2342	AssertFatalMsgFailed(("pgmMode=%d\n", pgmMode));
2343	}
2344	}
2345
2346
2347	/**
2348	* Gets the index into the paging mode data array of a SHW+GST mode.
2349	*
2350	* @returns PGM::paPagingData index.
2351	* @param uShwType The shadow paging mode type.
2352	* @param uGstType The guest paging mode type.
2353	*/
2354	DECLINLINE(unsigned) pgmModeDataIndex(unsigned uShwType, unsigned uGstType)
2355	{
2356	Assert(uShwType >= PGM_TYPE_32BIT && uShwType <= PGM_TYPE_AMD64);
2357	Assert(uGstType >= PGM_TYPE_REAL && uGstType <= PGM_TYPE_AMD64);
2358	return (uShwType - PGM_TYPE_32BIT) * (PGM_TYPE_AMD64 - PGM_TYPE_32BIT + 1)
2359	+ (uGstType - PGM_TYPE_REAL);
2360	}
2361
2362
2363	/**
2364	* Gets the index into the paging mode data array of a SHW+GST mode.
2365	*
2366	* @returns PGM::paPagingData index.
2367	* @param enmShw The shadow paging mode.
2368	* @param enmGst The guest paging mode.
2369	*/
2370	DECLINLINE(unsigned) pgmModeDataIndexByMode(PGMMODE enmShw, PGMMODE enmGst)
2371	{
2372	Assert(enmShw >= PGMMODE_32_BIT && enmShw <= PGMMODE_MAX);
2373	Assert(enmGst > PGMMODE_INVALID && enmGst < PGMMODE_MAX);
2374	return pgmModeDataIndex(pgmModeToType(enmShw), pgmModeToType(enmGst));
2375	}
2376
2377
2378	/**
2379	* Calculates the max data index.
2380	* @returns The number of entries in the pagaing data array.
2381	*/
2382	DECLINLINE(unsigned) pgmModeDataMaxIndex(void)
2383	{
2384	return pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_AMD64) + 1;
2385	}
2386
2387
2388	/**
2389	* Initializes the paging mode data kept in PGM::paModeData.
2390	*
2391	* @param pVM The VM handle.
2392	* @param fResolveGCAndR0 Indicate whether or not GC and Ring-0 symbols can be resolved now.
2393	* This is used early in the init process to avoid trouble with PDM
2394	* not being initialized yet.
2395	*/
2396	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0)
2397	{
2398	PPGMMODEDATA pModeData;
2399	int rc;
2400
2401	/*
2402	* Allocate the array on the first call.
2403	*/
2404	if (!pVM->pgm.s.paModeData)
2405	{
2406	pVM->pgm.s.paModeData = (PPGMMODEDATA)MMR3HeapAllocZ(pVM, MM_TAG_PGM, sizeof(PGMMODEDATA) * pgmModeDataMaxIndex());
2407	AssertReturn(pVM->pgm.s.paModeData, VERR_NO_MEMORY);
2408	}
2409
2410	/*
2411	* Initialize the array entries.
2412	*/
2413	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_REAL)];
2414	pModeData->uShwType = PGM_TYPE_32BIT;
2415	pModeData->uGstType = PGM_TYPE_REAL;
2416	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2417	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2418	rc = PGM_BTH_NAME_32BIT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2419
2420	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGMMODE_PROTECTED)];
2421	pModeData->uShwType = PGM_TYPE_32BIT;
2422	pModeData->uGstType = PGM_TYPE_PROT;
2423	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2424	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2425	rc = PGM_BTH_NAME_32BIT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2426
2427	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_32BIT)];
2428	pModeData->uShwType = PGM_TYPE_32BIT;
2429	pModeData->uGstType = PGM_TYPE_32BIT;
2430	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2431	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2432	rc = PGM_BTH_NAME_32BIT_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2433
2434	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_REAL)];
2435	pModeData->uShwType = PGM_TYPE_PAE;
2436	pModeData->uGstType = PGM_TYPE_REAL;
2437	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2438	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2439	rc = PGM_BTH_NAME_PAE_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2440
2441	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PROT)];
2442	pModeData->uShwType = PGM_TYPE_PAE;
2443	pModeData->uGstType = PGM_TYPE_PROT;
2444	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2445	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2446	rc = PGM_BTH_NAME_PAE_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2447
2448	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_32BIT)];
2449	pModeData->uShwType = PGM_TYPE_PAE;
2450	pModeData->uGstType = PGM_TYPE_32BIT;
2451	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2452	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2453	rc = PGM_BTH_NAME_PAE_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2454
2455	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PAE)];
2456	pModeData->uShwType = PGM_TYPE_PAE;
2457	pModeData->uGstType = PGM_TYPE_PAE;
2458	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2459	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2460	rc = PGM_BTH_NAME_PAE_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2461
2462	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_REAL)];
2463	pModeData->uShwType = PGM_TYPE_AMD64;
2464	pModeData->uGstType = PGM_TYPE_REAL;
2465	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2466	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2467
2468	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_PROT)];
2469	pModeData->uShwType = PGM_TYPE_AMD64;
2470	pModeData->uGstType = PGM_TYPE_PROT;
2471	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2472	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2473
2474	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_AMD64)];
2475	pModeData->uShwType = PGM_TYPE_AMD64;
2476	pModeData->uGstType = PGM_TYPE_AMD64;
2477	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2478	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2479
2480	return VINF_SUCCESS;
2481	}
2482
2483
2484	/**
2485	* Swtich to different (or relocated in the relocate case) mode data.
2486	*
2487	* @param pVM The VM handle.
2488	* @param enmShw The the shadow paging mode.
2489	* @param enmGst The the guest paging mode.
2490	*/
2491	static void pgmR3ModeDataSwitch(PVM pVM, PGMMODE enmShw, PGMMODE enmGst)
2492	{
2493	PPGMMODEDATA pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(enmShw, enmGst)];
2494
2495	Assert(pModeData->uGstType == pgmModeToType(enmGst));
2496	Assert(pModeData->uShwType == pgmModeToType(enmShw));
2497
2498	/* shadow */
2499	pVM->pgm.s.pfnR3ShwRelocate = pModeData->pfnR3ShwRelocate;
2500	pVM->pgm.s.pfnR3ShwExit = pModeData->pfnR3ShwExit;
2501	pVM->pgm.s.pfnR3ShwGetPage = pModeData->pfnR3ShwGetPage;
2502	Assert(pVM->pgm.s.pfnR3ShwGetPage);
2503	pVM->pgm.s.pfnR3ShwModifyPage = pModeData->pfnR3ShwModifyPage;
2504	pVM->pgm.s.pfnR3ShwGetPDEByIndex = pModeData->pfnR3ShwGetPDEByIndex;
2505	pVM->pgm.s.pfnR3ShwSetPDEByIndex = pModeData->pfnR3ShwSetPDEByIndex;
2506	pVM->pgm.s.pfnR3ShwModifyPDEByIndex = pModeData->pfnR3ShwModifyPDEByIndex;
2507
2508	pVM->pgm.s.pfnGCShwGetPage = pModeData->pfnGCShwGetPage;
2509	pVM->pgm.s.pfnGCShwModifyPage = pModeData->pfnGCShwModifyPage;
2510	pVM->pgm.s.pfnGCShwGetPDEByIndex = pModeData->pfnGCShwGetPDEByIndex;
2511	pVM->pgm.s.pfnGCShwSetPDEByIndex = pModeData->pfnGCShwSetPDEByIndex;
2512	pVM->pgm.s.pfnGCShwModifyPDEByIndex = pModeData->pfnGCShwModifyPDEByIndex;
2513
2514	pVM->pgm.s.pfnR0ShwGetPage = pModeData->pfnR0ShwGetPage;
2515	pVM->pgm.s.pfnR0ShwModifyPage = pModeData->pfnR0ShwModifyPage;
2516	pVM->pgm.s.pfnR0ShwGetPDEByIndex = pModeData->pfnR0ShwGetPDEByIndex;
2517	pVM->pgm.s.pfnR0ShwSetPDEByIndex = pModeData->pfnR0ShwSetPDEByIndex;
2518	pVM->pgm.s.pfnR0ShwModifyPDEByIndex = pModeData->pfnR0ShwModifyPDEByIndex;
2519
2520
2521	/* guest */
2522	pVM->pgm.s.pfnR3GstRelocate = pModeData->pfnR3GstRelocate;
2523	pVM->pgm.s.pfnR3GstExit = pModeData->pfnR3GstExit;
2524	pVM->pgm.s.pfnR3GstGetPage = pModeData->pfnR3GstGetPage;
2525	Assert(pVM->pgm.s.pfnR3GstGetPage);
2526	pVM->pgm.s.pfnR3GstModifyPage = pModeData->pfnR3GstModifyPage;
2527	pVM->pgm.s.pfnR3GstGetPDE = pModeData->pfnR3GstGetPDE;
2528	pVM->pgm.s.pfnR3GstMonitorCR3 = pModeData->pfnR3GstMonitorCR3;
2529	pVM->pgm.s.pfnR3GstUnmonitorCR3 = pModeData->pfnR3GstUnmonitorCR3;
2530	pVM->pgm.s.pfnR3GstMapCR3 = pModeData->pfnR3GstMapCR3;
2531	pVM->pgm.s.pfnR3GstUnmapCR3 = pModeData->pfnR3GstUnmapCR3;
2532	pVM->pgm.s.pfnR3GstWriteHandlerCR3 = pModeData->pfnR3GstWriteHandlerCR3;
2533	pVM->pgm.s.pszR3GstWriteHandlerCR3 = pModeData->pszR3GstWriteHandlerCR3;
2534	pVM->pgm.s.pfnR3GstPAEWriteHandlerCR3 = pModeData->pfnR3GstPAEWriteHandlerCR3;
2535	pVM->pgm.s.pszR3GstPAEWriteHandlerCR3 = pModeData->pszR3GstPAEWriteHandlerCR3;
2536
2537	pVM->pgm.s.pfnGCGstGetPage = pModeData->pfnGCGstGetPage;
2538	pVM->pgm.s.pfnGCGstModifyPage = pModeData->pfnGCGstModifyPage;
2539	pVM->pgm.s.pfnGCGstGetPDE = pModeData->pfnGCGstGetPDE;
2540	pVM->pgm.s.pfnGCGstMonitorCR3 = pModeData->pfnGCGstMonitorCR3;
2541	pVM->pgm.s.pfnGCGstUnmonitorCR3 = pModeData->pfnGCGstUnmonitorCR3;
2542	pVM->pgm.s.pfnGCGstMapCR3 = pModeData->pfnGCGstMapCR3;
2543	pVM->pgm.s.pfnGCGstUnmapCR3 = pModeData->pfnGCGstUnmapCR3;
2544	pVM->pgm.s.pfnGCGstWriteHandlerCR3 = pModeData->pfnGCGstWriteHandlerCR3;
2545	pVM->pgm.s.pfnGCGstPAEWriteHandlerCR3 = pModeData->pfnGCGstPAEWriteHandlerCR3;
2546
2547	pVM->pgm.s.pfnR0GstGetPage = pModeData->pfnR0GstGetPage;
2548	pVM->pgm.s.pfnR0GstModifyPage = pModeData->pfnR0GstModifyPage;
2549	pVM->pgm.s.pfnR0GstGetPDE = pModeData->pfnR0GstGetPDE;
2550	pVM->pgm.s.pfnR0GstMonitorCR3 = pModeData->pfnR0GstMonitorCR3;
2551	pVM->pgm.s.pfnR0GstUnmonitorCR3 = pModeData->pfnR0GstUnmonitorCR3;
2552	pVM->pgm.s.pfnR0GstMapCR3 = pModeData->pfnR0GstMapCR3;
2553	pVM->pgm.s.pfnR0GstUnmapCR3 = pModeData->pfnR0GstUnmapCR3;
2554	pVM->pgm.s.pfnR0GstWriteHandlerCR3 = pModeData->pfnR0GstWriteHandlerCR3;
2555	pVM->pgm.s.pfnR0GstPAEWriteHandlerCR3 = pModeData->pfnR0GstPAEWriteHandlerCR3;
2556
2557
2558	/* both */
2559	pVM->pgm.s.pfnR3BthRelocate = pModeData->pfnR3BthRelocate;
2560	pVM->pgm.s.pfnR3BthTrap0eHandler = pModeData->pfnR3BthTrap0eHandler;
2561	pVM->pgm.s.pfnR3BthInvalidatePage = pModeData->pfnR3BthInvalidatePage;
2562	pVM->pgm.s.pfnR3BthSyncCR3 = pModeData->pfnR3BthSyncCR3;
2563	Assert(pVM->pgm.s.pfnR3BthSyncCR3);
2564	pVM->pgm.s.pfnR3BthSyncPage = pModeData->pfnR3BthSyncPage;
2565	pVM->pgm.s.pfnR3BthPrefetchPage = pModeData->pfnR3BthPrefetchPage;
2566	pVM->pgm.s.pfnR3BthVerifyAccessSyncPage = pModeData->pfnR3BthVerifyAccessSyncPage;
2567	#ifdef VBOX_STRICT
2568	pVM->pgm.s.pfnR3BthAssertCR3 = pModeData->pfnR3BthAssertCR3;
2569	#endif
2570
2571	pVM->pgm.s.pfnGCBthTrap0eHandler = pModeData->pfnGCBthTrap0eHandler;
2572	pVM->pgm.s.pfnGCBthInvalidatePage = pModeData->pfnGCBthInvalidatePage;
2573	pVM->pgm.s.pfnGCBthSyncCR3 = pModeData->pfnGCBthSyncCR3;
2574	pVM->pgm.s.pfnGCBthSyncPage = pModeData->pfnGCBthSyncPage;
2575	pVM->pgm.s.pfnGCBthPrefetchPage = pModeData->pfnGCBthPrefetchPage;
2576	pVM->pgm.s.pfnGCBthVerifyAccessSyncPage = pModeData->pfnGCBthVerifyAccessSyncPage;
2577	#ifdef VBOX_STRICT
2578	pVM->pgm.s.pfnGCBthAssertCR3 = pModeData->pfnGCBthAssertCR3;
2579	#endif
2580
2581	pVM->pgm.s.pfnR0BthTrap0eHandler = pModeData->pfnR0BthTrap0eHandler;
2582	pVM->pgm.s.pfnR0BthInvalidatePage = pModeData->pfnR0BthInvalidatePage;
2583	pVM->pgm.s.pfnR0BthSyncCR3 = pModeData->pfnR0BthSyncCR3;
2584	pVM->pgm.s.pfnR0BthSyncPage = pModeData->pfnR0BthSyncPage;
2585	pVM->pgm.s.pfnR0BthPrefetchPage = pModeData->pfnR0BthPrefetchPage;
2586	pVM->pgm.s.pfnR0BthVerifyAccessSyncPage = pModeData->pfnR0BthVerifyAccessSyncPage;
2587	#ifdef VBOX_STRICT
2588	pVM->pgm.s.pfnR0BthAssertCR3 = pModeData->pfnR0BthAssertCR3;
2589	#endif
2590	}
2591
2592
2593	#ifdef DEBUG_bird
2594	#include <stdlib.h> /* getenv() remove me! */
2595	#endif
2596
2597	/**
2598	* Calculates the shadow paging mode.
2599	*
2600	* @returns The shadow paging mode.
2601	* @param enmGuestMode The guest mode.
2602	* @param enmHostMode The host mode.
2603	* @param enmShadowMode The current shadow mode.
2604	* @param penmSwitcher Where to store the switcher to use.
2605	* VMMSWITCHER_INVALID means no change.
2606	*/
2607	static PGMMODE pgmR3CalcShadowMode(PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher)
2608	{
2609	VMMSWITCHER enmSwitcher = VMMSWITCHER_INVALID;
2610	switch (enmGuestMode)
2611	{
2612	/*
2613	* When switching to real or protected mode we don't change
2614	* anything since it's likely that we'll switch back pretty soon.
2615	*
2616	* During pgmR3InitPaging we'll end up here with PGMMODE_INVALID
2617	* and is supposed to determin which shadow paging and switcher to
2618	* use during init.
2619	*/
2620	case PGMMODE_REAL:
2621	case PGMMODE_PROTECTED:
2622	if (enmShadowMode != PGMMODE_INVALID)
2623	break; /* (no change) */
2624	switch (enmHostMode)
2625	{
2626	case SUPPAGINGMODE_32_BIT:
2627	case SUPPAGINGMODE_32_BIT_GLOBAL:
2628	enmShadowMode = PGMMODE_32_BIT;
2629	enmSwitcher = VMMSWITCHER_32_TO_32;
2630	break;
2631
2632	case SUPPAGINGMODE_PAE:
2633	case SUPPAGINGMODE_PAE_NX:
2634	case SUPPAGINGMODE_PAE_GLOBAL:
2635	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2636	enmShadowMode = PGMMODE_PAE;
2637	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2638	#ifdef DEBUG_bird
2639	if (getenv("VBOX_32BIT"))
2640	{
2641	enmShadowMode = PGMMODE_32_BIT;
2642	enmSwitcher = VMMSWITCHER_PAE_TO_32;
2643	}
2644	#endif
2645	break;
2646
2647	case SUPPAGINGMODE_AMD64:
2648	case SUPPAGINGMODE_AMD64_GLOBAL:
2649	case SUPPAGINGMODE_AMD64_NX:
2650	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2651	enmShadowMode = PGMMODE_PAE;
2652	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
2653	break;
2654
2655	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2656	}
2657	break;
2658
2659	case PGMMODE_32_BIT:
2660	switch (enmHostMode)
2661	{
2662	case SUPPAGINGMODE_32_BIT:
2663	case SUPPAGINGMODE_32_BIT_GLOBAL:
2664	enmShadowMode = PGMMODE_32_BIT;
2665	enmSwitcher = VMMSWITCHER_32_TO_32;
2666	break;
2667
2668	case SUPPAGINGMODE_PAE:
2669	case SUPPAGINGMODE_PAE_NX:
2670	case SUPPAGINGMODE_PAE_GLOBAL:
2671	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2672	enmShadowMode = PGMMODE_PAE;
2673	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2674	#ifdef DEBUG_bird
2675	if (getenv("VBOX_32BIT"))
2676	{
2677	enmShadowMode = PGMMODE_32_BIT;
2678	enmSwitcher = VMMSWITCHER_PAE_TO_32;
2679	}
2680	#endif
2681	break;
2682
2683	case SUPPAGINGMODE_AMD64:
2684	case SUPPAGINGMODE_AMD64_GLOBAL:
2685	case SUPPAGINGMODE_AMD64_NX:
2686	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2687	enmShadowMode = PGMMODE_PAE;
2688	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
2689	break;
2690
2691	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2692	}
2693	break;
2694
2695	case PGMMODE_PAE:
2696	case PGMMODE_PAE_NX: /** @todo This might require more switchers and guest+both modes. */
2697	switch (enmHostMode)
2698	{
2699	case SUPPAGINGMODE_32_BIT:
2700	case SUPPAGINGMODE_32_BIT_GLOBAL:
2701	enmShadowMode = PGMMODE_PAE;
2702	enmSwitcher = VMMSWITCHER_32_TO_PAE;
2703	break;
2704
2705	case SUPPAGINGMODE_PAE:
2706	case SUPPAGINGMODE_PAE_NX:
2707	case SUPPAGINGMODE_PAE_GLOBAL:
2708	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2709	enmShadowMode = PGMMODE_PAE;
2710	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2711	break;
2712
2713	case SUPPAGINGMODE_AMD64:
2714	case SUPPAGINGMODE_AMD64_GLOBAL:
2715	case SUPPAGINGMODE_AMD64_NX:
2716	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2717	enmShadowMode = PGMMODE_PAE;
2718	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
2719	break;
2720
2721	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2722	}
2723	break;
2724
2725	case PGMMODE_AMD64:
2726	case PGMMODE_AMD64_NX:
2727	switch (enmHostMode)
2728	{
2729	case SUPPAGINGMODE_32_BIT:
2730	case SUPPAGINGMODE_32_BIT_GLOBAL:
2731	enmShadowMode = PGMMODE_PAE;
2732	enmSwitcher = VMMSWITCHER_32_TO_AMD64;
2733	break;
2734
2735	case SUPPAGINGMODE_PAE:
2736	case SUPPAGINGMODE_PAE_NX:
2737	case SUPPAGINGMODE_PAE_GLOBAL:
2738	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2739	enmShadowMode = PGMMODE_PAE;
2740	enmSwitcher = VMMSWITCHER_PAE_TO_AMD64;
2741	break;
2742
2743	case SUPPAGINGMODE_AMD64:
2744	case SUPPAGINGMODE_AMD64_GLOBAL:
2745	case SUPPAGINGMODE_AMD64_NX:
2746	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2747	enmShadowMode = PGMMODE_PAE;
2748	enmSwitcher = VMMSWITCHER_AMD64_TO_AMD64;
2749	break;
2750
2751	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2752	}
2753	break;
2754
2755
2756	default:
2757	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
2758	return PGMMODE_INVALID;
2759	}
2760
2761	*penmSwitcher = enmSwitcher;
2762	return enmShadowMode;
2763	}
2764
2765
2766	/**
2767	* Performs the actual mode change.
2768	* This is called by PGMChangeMode and pgmR3InitPaging().
2769	*
2770	* @returns VBox status code.
2771	* @param pVM VM handle.
2772	* @param enmGuestMode The new guest mode. This is assumed to be different from
2773	* the current mode.
2774	*/
2775	int pgmR3ChangeMode(PVM pVM, PGMMODE enmGuestMode)
2776	{
2777	LogFlow(("pgmR3ChangeMode: Guest mode: %d -> %d\n", pVM->pgm.s.enmGuestMode, enmGuestMode));
2778	STAM_REL_COUNTER_INC(&pVM->pgm.s.cGuestModeChanges);
2779
2780	/*
2781	* Calc the shadow mode and switcher.
2782	*/
2783	VMMSWITCHER enmSwitcher;
2784	PGMMODE enmShadowMode = pgmR3CalcShadowMode(enmGuestMode, pVM->pgm.s.enmHostMode, pVM->pgm.s.enmShadowMode, &enmSwitcher);
2785	if (enmSwitcher != VMMSWITCHER_INVALID)
2786	{
2787	/*
2788	* Select new switcher.
2789	*/
2790	int rc = VMMR3SelectSwitcher(pVM, enmSwitcher);
2791	if (VBOX_FAILURE(rc))
2792	{
2793	AssertReleaseMsgFailed(("VMMR3SelectSwitcher(%d) -> %Vrc\n", enmSwitcher, rc));
2794	return rc;
2795	}
2796	}
2797
2798	/*
2799	* Exit old mode(s).
2800	*/
2801	/* shadow */
2802	if (enmShadowMode != pVM->pgm.s.enmShadowMode)
2803	{
2804	LogFlow(("pgmR3ChangeMode: Shadow mode: %d -> %d\n", pVM->pgm.s.enmShadowMode, enmShadowMode));
2805	if (PGM_SHW_PFN(Exit, pVM))
2806	{
2807	int rc = PGM_SHW_PFN(Exit, pVM)(pVM);
2808	if (VBOX_FAILURE(rc))
2809	{
2810	AssertMsgFailed(("Exit failed for shadow mode %d: %Vrc\n", pVM->pgm.s.enmShadowMode, rc));
2811	return rc;
2812	}
2813	}
2814
2815	}
2816
2817	/* guest */
2818	if (PGM_GST_PFN(Exit, pVM))
2819	{
2820	int rc = PGM_GST_PFN(Exit, pVM)(pVM);
2821	if (VBOX_FAILURE(rc))
2822	{
2823	AssertMsgFailed(("Exit failed for guest mode %d: %Vrc\n", pVM->pgm.s.enmGuestMode, rc));
2824	return rc;
2825	}
2826	}
2827
2828	/*
2829	* Load new paging mode data.
2830	*/
2831	pgmR3ModeDataSwitch(pVM, enmShadowMode, enmGuestMode);
2832
2833	/*
2834	* Enter new shadow mode (if changed).
2835	*/
2836	if (enmShadowMode != pVM->pgm.s.enmShadowMode)
2837	{
2838	int rc;
2839	pVM->pgm.s.enmShadowMode = enmShadowMode;
2840	switch (enmShadowMode)
2841	{
2842	case PGMMODE_32_BIT:
2843	rc = PGM_SHW_NAME_32BIT(Enter)(pVM);
2844	break;
2845	case PGMMODE_PAE:
2846	case PGMMODE_PAE_NX:
2847	rc = PGM_SHW_NAME_PAE(Enter)(pVM);
2848	break;
2849	case PGMMODE_AMD64:
2850	case PGMMODE_AMD64_NX:
2851	rc = PGM_SHW_NAME_AMD64(Enter)(pVM);
2852	break;
2853	case PGMMODE_REAL:
2854	case PGMMODE_PROTECTED:
2855	default:
2856	AssertReleaseMsgFailed(("enmShadowMode=%d\n", enmShadowMode));
2857	return VERR_INTERNAL_ERROR;
2858	}
2859	if (VBOX_FAILURE(rc))
2860	{
2861	AssertReleaseMsgFailed(("Entering enmShadowMode=%d failed: %Vrc\n", enmShadowMode, rc));
2862	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
2863	return rc;
2864	}
2865	}
2866
2867	/*
2868	* Enter the new guest and shadow+guest modes.
2869	*/
2870	int rc = -1;
2871	int rc2 = -1;
2872	RTGCPHYS GCPhysCR3 = NIL_RTGCPHYS;
2873	pVM->pgm.s.enmGuestMode = enmGuestMode;
2874	switch (enmGuestMode)
2875	{
2876	case PGMMODE_REAL:
2877	rc = PGM_GST_NAME_REAL(Enter)(pVM, NIL_RTGCPHYS);
2878	switch (pVM->pgm.s.enmShadowMode)
2879	{
2880	case PGMMODE_32_BIT:
2881	rc2 = PGM_BTH_NAME_32BIT_REAL(Enter)(pVM, NIL_RTGCPHYS);
2882	break;
2883	case PGMMODE_PAE:
2884	case PGMMODE_PAE_NX:
2885	rc2 = PGM_BTH_NAME_PAE_REAL(Enter)(pVM, NIL_RTGCPHYS);
2886	break;
2887	case PGMMODE_AMD64:
2888	case PGMMODE_AMD64_NX:
2889	rc2 = PGM_BTH_NAME_PAE_REAL(Enter)(pVM, NIL_RTGCPHYS);
2890	break;
2891	default: AssertFailed(); break;
2892	}
2893	break;
2894
2895	case PGMMODE_PROTECTED:
2896	rc = PGM_GST_NAME_PROT(Enter)(pVM, NIL_RTGCPHYS);
2897	switch (pVM->pgm.s.enmShadowMode)
2898	{
2899	case PGMMODE_32_BIT:
2900	rc2 = PGM_BTH_NAME_32BIT_PROT(Enter)(pVM, NIL_RTGCPHYS);
2901	break;
2902	case PGMMODE_PAE:
2903	case PGMMODE_PAE_NX:
2904	rc2 = PGM_BTH_NAME_PAE_PROT(Enter)(pVM, NIL_RTGCPHYS);
2905	break;
2906	case PGMMODE_AMD64:
2907	case PGMMODE_AMD64_NX:
2908	rc2 = PGM_BTH_NAME_PAE_PROT(Enter)(pVM, NIL_RTGCPHYS);
2909	break;
2910	default: AssertFailed(); break;
2911	}
2912	break;
2913
2914	case PGMMODE_32_BIT:
2915	GCPhysCR3 = CPUMGetGuestCR3(pVM) & X86_CR3_PAGE_MASK;
2916	rc = PGM_GST_NAME_32BIT(Enter)(pVM, GCPhysCR3);
2917	switch (pVM->pgm.s.enmShadowMode)
2918	{
2919	case PGMMODE_32_BIT:
2920	rc2 = PGM_BTH_NAME_32BIT_32BIT(Enter)(pVM, GCPhysCR3);
2921	break;
2922	case PGMMODE_PAE:
2923	case PGMMODE_PAE_NX:
2924	rc2 = PGM_BTH_NAME_PAE_32BIT(Enter)(pVM, GCPhysCR3);
2925	break;
2926	case PGMMODE_AMD64:
2927	case PGMMODE_AMD64_NX:
2928	AssertMsgFailed(("Should use PAE shadow mode!\n"));
2929	default: AssertFailed(); break;
2930	}
2931	break;
2932
2933	//case PGMMODE_PAE_NX:
2934	case PGMMODE_PAE:
2935	GCPhysCR3 = CPUMGetGuestCR3(pVM) & X86_CR3_PAE_PAGE_MASK;
2936	rc = PGM_GST_NAME_PAE(Enter)(pVM, GCPhysCR3);
2937	switch (pVM->pgm.s.enmShadowMode)
2938	{
2939	case PGMMODE_PAE:
2940	case PGMMODE_PAE_NX:
2941	rc2 = PGM_BTH_NAME_PAE_PAE(Enter)(pVM, GCPhysCR3);
2942	break;
2943	case PGMMODE_32_BIT:
2944	case PGMMODE_AMD64:
2945	case PGMMODE_AMD64_NX:
2946	AssertMsgFailed(("Should use PAE shadow mode!\n"));
2947	default: AssertFailed(); break;
2948	}
2949	break;
2950
2951	//case PGMMODE_AMD64_NX:
2952	case PGMMODE_AMD64:
2953	GCPhysCR3 = CPUMGetGuestCR3(pVM) & 0xfffffffffffff000ULL; /** @todo define this mask and make CR3 64-bit in this case! */
2954	rc = PGM_GST_NAME_AMD64(Enter)(pVM, GCPhysCR3);
2955	switch (pVM->pgm.s.enmShadowMode)
2956	{
2957	case PGMMODE_AMD64:
2958	case PGMMODE_AMD64_NX:
2959	rc2 = PGM_BTH_NAME_AMD64_AMD64(Enter)(pVM, GCPhysCR3);
2960	break;
2961	case PGMMODE_32_BIT:
2962	case PGMMODE_PAE:
2963	case PGMMODE_PAE_NX:
2964	AssertMsgFailed(("Should use AMD64 shadow mode!\n"));
2965	default: AssertFailed(); break;
2966	}
2967	break;
2968
2969	default:
2970	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
2971	rc = VERR_NOT_IMPLEMENTED;
2972	break;
2973	}
2974
2975	/* status codes. */
2976	AssertRC(rc);
2977	AssertRC(rc2);
2978	if (VBOX_SUCCESS(rc))
2979	{
2980	rc = rc2;
2981	if (VBOX_SUCCESS(rc)) /* no informational status codes. */
2982	rc = VINF_SUCCESS;
2983	}
2984
2985	/*
2986	* Notify SELM so it can update the TSSes with correct CR3s.
2987	*/
2988	SELMR3PagingModeChanged(pVM);
2989
2990	/* Notify HWACCM as well. */
2991	HWACCMR3PagingModeChanged(pVM, pVM->pgm.s.enmShadowMode);
2992	return rc;
2993	}
2994
2995
2996	/**
2997	* Dumps a PAE shadow page table.
2998	*
2999	* @returns VBox status code (VINF_SUCCESS).
3000	* @param pVM The VM handle.
3001	* @param pPT Pointer to the page table.
3002	* @param u64Address The virtual address of the page table starts.
3003	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
3004	* @param cMaxDepth The maxium depth.
3005	* @param pHlp Pointer to the output functions.
3006	*/
3007	static int pgmR3DumpHierarchyHCPaePT(PVM pVM, PX86PTPAE pPT, uint64_t u64Address, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3008	{
3009	for (unsigned i = 0; i < ELEMENTS(pPT->a); i++)
3010	{
3011	X86PTEPAE Pte = pPT->a[i];
3012	if (Pte.n.u1Present)
3013	{
3014	pHlp->pfnPrintf(pHlp,
3015	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3016	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n"
3017	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n",
3018	u64Address + ((uint64_t)i << X86_PT_PAE_SHIFT),
3019	Pte.n.u1Write ? 'W' : 'R',
3020	Pte.n.u1User ? 'U' : 'S',
3021	Pte.n.u1Accessed ? 'A' : '-',
3022	Pte.n.u1Dirty ? 'D' : '-',
3023	Pte.n.u1Global ? 'G' : '-',
3024	Pte.n.u1WriteThru ? "WT" : "--",
3025	Pte.n.u1CacheDisable? "CD" : "--",
3026	Pte.n.u1PAT ? "AT" : "--",
3027	Pte.n.u1NoExecute ? "NX" : "--",
3028	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3029	Pte.u & RT_BIT(10) ? '1' : '0',
3030	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED? 'v' : '-',
3031	Pte.u & X86_PTE_PAE_PG_MASK);
3032	}
3033	}
3034	return VINF_SUCCESS;
3035	}
3036
3037
3038	/**
3039	* Dumps a PAE shadow page directory table.
3040	*
3041	* @returns VBox status code (VINF_SUCCESS).
3042	* @param pVM The VM handle.
3043	* @param HCPhys The physical address of the page directory table.
3044	* @param u64Address The virtual address of the page table starts.
3045	* @param cr4 The CR4, PSE is currently used.
3046	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
3047	* @param cMaxDepth The maxium depth.
3048	* @param pHlp Pointer to the output functions.
3049	*/
3050	static int pgmR3DumpHierarchyHCPaePD(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3051	{
3052	PX86PDPAE pPD = (PX86PDPAE)MMPagePhys2Page(pVM, HCPhys);
3053	if (!pPD)
3054	{
3055	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory at HCPhys=%#VHp was not found in the page pool!\n",
3056	fLongMode ? 16 : 8, u64Address, HCPhys);
3057	return VERR_INVALID_PARAMETER;
3058	}
3059	int rc = VINF_SUCCESS;
3060	for (unsigned i = 0; i < ELEMENTS(pPD->a); i++)
3061	{
3062	X86PDEPAE Pde = pPD->a[i];
3063	if (Pde.n.u1Present)
3064	{
3065	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
3066	pHlp->pfnPrintf(pHlp,
3067	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3068	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n"
3069	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n",
3070	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
3071	Pde.b.u1Write ? 'W' : 'R',
3072	Pde.b.u1User ? 'U' : 'S',
3073	Pde.b.u1Accessed ? 'A' : '-',
3074	Pde.b.u1Dirty ? 'D' : '-',
3075	Pde.b.u1Global ? 'G' : '-',
3076	Pde.b.u1WriteThru ? "WT" : "--",
3077	Pde.b.u1CacheDisable? "CD" : "--",
3078	Pde.b.u1PAT ? "AT" : "--",
3079	Pde.b.u1NoExecute ? "NX" : "--",
3080	Pde.u & RT_BIT_64(9) ? '1' : '0',
3081	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3082	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3083	Pde.u & X86_PDE_PAE_PG_MASK);
3084	else
3085	{
3086	pHlp->pfnPrintf(pHlp,
3087	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3088	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n"
3089	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n",
3090	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
3091	Pde.n.u1Write ? 'W' : 'R',
3092	Pde.n.u1User ? 'U' : 'S',
3093	Pde.n.u1Accessed ? 'A' : '-',
3094	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3095	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3096	Pde.n.u1WriteThru ? "WT" : "--",
3097	Pde.n.u1CacheDisable? "CD" : "--",
3098	Pde.n.u1NoExecute ? "NX" : "--",
3099	Pde.u & RT_BIT_64(9) ? '1' : '0',
3100	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3101	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3102	Pde.u & X86_PDE_PAE_PG_MASK);
3103	if (cMaxDepth >= 1)
3104	{
3105	/** @todo what about using the page pool for mapping PTs? */
3106	uint64_t u64AddressPT = u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT);
3107	RTHCPHYS HCPhysPT = Pde.u & X86_PDE_PAE_PG_MASK;
3108	PX86PTPAE pPT = NULL;
3109	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
3110	pPT = (PX86PTPAE)MMPagePhys2Page(pVM, HCPhysPT);
3111	else
3112	{
3113	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
3114	{
3115	uint64_t off = u64AddressPT - pMap->GCPtr;
3116	if (off < pMap->cb)
3117	{
3118	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
3119	const int iSub = (int)((off >> X86_PD_PAE_SHIFT) & 1); /* MSC is a pain sometimes */
3120	if ((iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0) != HCPhysPT)
3121	pHlp->pfnPrintf(pHlp, "%0*llx error! Mapping error! PT %d has HCPhysPT=%VHp not %VHp is in the PD.\n",
3122	fLongMode ? 16 : 8, u64AddressPT, iPDE,
3123	iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0, HCPhysPT);
3124	pPT = &pMap->aPTs[iPDE].paPaePTsR3[iSub];
3125	}
3126	}
3127	}
3128	int rc2 = VERR_INVALID_PARAMETER;
3129	if (pPT)
3130	rc2 = pgmR3DumpHierarchyHCPaePT(pVM, pPT, u64AddressPT, fLongMode, cMaxDepth - 1, pHlp);
3131	else
3132	pHlp->pfnPrintf(pHlp, "%0*llx error! Page table at HCPhys=%#VHp was not found in the page pool!\n",
3133	fLongMode ? 16 : 8, u64AddressPT, HCPhysPT);
3134	if (rc2 < rc && VBOX_SUCCESS(rc))
3135	rc = rc2;
3136	}
3137	}
3138	}
3139	}
3140	return rc;
3141	}
3142
3143
3144	/**
3145	* Dumps a PAE shadow page directory pointer table.
3146	*
3147	* @returns VBox status code (VINF_SUCCESS).
3148	* @param pVM The VM handle.
3149	* @param HCPhys The physical address of the page directory pointer table.
3150	* @param u64Address The virtual address of the page table starts.
3151	* @param cr4 The CR4, PSE is currently used.
3152	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
3153	* @param cMaxDepth The maxium depth.
3154	* @param pHlp Pointer to the output functions.
3155	*/
3156	static int pgmR3DumpHierarchyHCPaePDPTR(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3157	{
3158	PX86PDPTR pPDPTR = (PX86PDPTR)MMPagePhys2Page(pVM, HCPhys);
3159	if (!pPDPTR)
3160	{
3161	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory pointer table at HCPhys=%#VHp was not found in the page pool!\n",
3162	fLongMode ? 16 : 8, u64Address, HCPhys);
3163	return VERR_INVALID_PARAMETER;
3164	}
3165
3166	int rc = VINF_SUCCESS;
3167	const unsigned c = fLongMode ? ELEMENTS(pPDPTR->a) : X86_PG_PAE_PDPE_ENTRIES;
3168	for (unsigned i = 0; i < c; i++)
3169	{
3170	X86PDPE Pdpe = pPDPTR->a[i];
3171	if (Pdpe.n.u1Present)
3172	{
3173	if (fLongMode)
3174	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
3175	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
3176	u64Address + ((uint64_t)i << X86_PDPTR_SHIFT),
3177	Pdpe.n.u1Write ? 'W' : 'R',
3178	Pdpe.n.u1User ? 'U' : 'S',
3179	Pdpe.n.u1Accessed ? 'A' : '-',
3180	Pdpe.n.u3Reserved & 1? '?' : '.', /* ignored */
3181	Pdpe.n.u3Reserved & 4? '!' : '.', /* mbz */
3182	Pdpe.n.u1WriteThru ? "WT" : "--",
3183	Pdpe.n.u1CacheDisable? "CD" : "--",
3184	Pdpe.n.u3Reserved & 2? "!" : "..",/* mbz */
3185	Pdpe.n.u1NoExecute ? "NX" : "--",
3186	Pdpe.u & RT_BIT(9) ? '1' : '0',
3187	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3188	Pdpe.u & RT_BIT(11) ? '1' : '0',
3189	Pdpe.u & X86_PDPE_PG_MASK);
3190	else
3191	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
3192	"%08x 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
3193	i << X86_PDPTR_SHIFT,
3194	Pdpe.n.u1Write ? '!' : '.', /* mbz */
3195	Pdpe.n.u1User ? '!' : '.', /* mbz */
3196	Pdpe.n.u1Accessed ? '!' : '.', /* mbz */
3197	Pdpe.n.u3Reserved & 1? '!' : '.', /* mbz */
3198	Pdpe.n.u3Reserved & 4? '!' : '.', /* mbz */
3199	Pdpe.n.u1WriteThru ? "WT" : "--",
3200	Pdpe.n.u1CacheDisable? "CD" : "--",
3201	Pdpe.n.u3Reserved & 2? "!" : "..",/* mbz */
3202	Pdpe.n.u1NoExecute ? "NX" : "--",
3203	Pdpe.u & RT_BIT(9) ? '1' : '0',
3204	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3205	Pdpe.u & RT_BIT(11) ? '1' : '0',
3206	Pdpe.u & X86_PDPE_PG_MASK);
3207	if (cMaxDepth >= 1)
3208	{
3209	int rc2 = pgmR3DumpHierarchyHCPaePD(pVM, Pdpe.u & X86_PDPE_PG_MASK, u64Address + ((uint64_t)i << X86_PDPTR_SHIFT),
3210	cr4, fLongMode, cMaxDepth - 1, pHlp);
3211	if (rc2 < rc && VBOX_SUCCESS(rc))
3212	rc = rc2;
3213	}
3214	}
3215	}
3216	return rc;
3217	}
3218
3219
3220	/**
3221	* Dumps a 32-bit shadow page table.
3222	*
3223	* @returns VBox status code (VINF_SUCCESS).
3224	* @param pVM The VM handle.
3225	* @param HCPhys The physical address of the table.
3226	* @param cr4 The CR4, PSE is currently used.
3227	* @param cMaxDepth The maxium depth.
3228	* @param pHlp Pointer to the output functions.
3229	*/
3230	static int pgmR3DumpHierarchyHcPaePML4(PVM pVM, RTHCPHYS HCPhys, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3231	{
3232	PX86PML4 pPML4 = (PX86PML4)MMPagePhys2Page(pVM, HCPhys);
3233	if (!pPML4)
3234	{
3235	pHlp->pfnPrintf(pHlp, "Page map level 4 at HCPhys=%#VHp was not found in the page pool!\n", HCPhys);
3236	return VERR_INVALID_PARAMETER;
3237	}
3238
3239	int rc = VINF_SUCCESS;
3240	for (unsigned i = 0; i < ELEMENTS(pPML4->a); i++)
3241	{
3242	X86PML4E Pml4e = pPML4->a[i];
3243	if (Pml4e.n.u1Present)
3244	{
3245	uint64_t u64Address = ((uint64_t)i << X86_PML4_SHIFT) \| (((uint64_t)i >> (X86_PML4_SHIFT - X86_PDPTR_SHIFT - 1)) * 0xffff000000000000ULL);
3246	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
3247	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
3248	u64Address,
3249	Pml4e.n.u1Write ? 'W' : 'R',
3250	Pml4e.n.u1User ? 'U' : 'S',
3251	Pml4e.n.u1Accessed ? 'A' : '-',
3252	Pml4e.n.u3Reserved & 1? '?' : '.', /* ignored */
3253	Pml4e.n.u3Reserved & 4? '!' : '.', /* mbz */
3254	Pml4e.n.u1WriteThru ? "WT" : "--",
3255	Pml4e.n.u1CacheDisable? "CD" : "--",
3256	Pml4e.n.u3Reserved & 2? "!" : "..",/* mbz */
3257	Pml4e.n.u1NoExecute ? "NX" : "--",
3258	Pml4e.u & RT_BIT(9) ? '1' : '0',
3259	Pml4e.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3260	Pml4e.u & RT_BIT(11) ? '1' : '0',
3261	Pml4e.u & X86_PML4E_PG_MASK);
3262
3263	if (cMaxDepth >= 1)
3264	{
3265	int rc2 = pgmR3DumpHierarchyHCPaePDPTR(pVM, Pml4e.u & X86_PML4E_PG_MASK, u64Address, cr4, true, cMaxDepth - 1, pHlp);
3266	if (rc2 < rc && VBOX_SUCCESS(rc))
3267	rc = rc2;
3268	}
3269	}
3270	}
3271	return rc;
3272	}
3273
3274
3275	/**
3276	* Dumps a 32-bit shadow page table.
3277	*
3278	* @returns VBox status code (VINF_SUCCESS).
3279	* @param pVM The VM handle.
3280	* @param pPT Pointer to the page table.
3281	* @param u32Address The virtual address this table starts at.
3282	* @param pHlp Pointer to the output functions.
3283	*/
3284	int pgmR3DumpHierarchyHC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, PCDBGFINFOHLP pHlp)
3285	{
3286	for (unsigned i = 0; i < ELEMENTS(pPT->a); i++)
3287	{
3288	X86PTE Pte = pPT->a[i];
3289	if (Pte.n.u1Present)
3290	{
3291	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3292	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
3293	u32Address + (i << X86_PT_SHIFT),
3294	Pte.n.u1Write ? 'W' : 'R',
3295	Pte.n.u1User ? 'U' : 'S',
3296	Pte.n.u1Accessed ? 'A' : '-',
3297	Pte.n.u1Dirty ? 'D' : '-',
3298	Pte.n.u1Global ? 'G' : '-',
3299	Pte.n.u1WriteThru ? "WT" : "--",
3300	Pte.n.u1CacheDisable? "CD" : "--",
3301	Pte.n.u1PAT ? "AT" : "--",
3302	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3303	Pte.u & RT_BIT(10) ? '1' : '0',
3304	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
3305	Pte.u & X86_PDE_PG_MASK);
3306	}
3307	}
3308	return VINF_SUCCESS;
3309	}
3310
3311
3312	/**
3313	* Dumps a 32-bit shadow page directory and page tables.
3314	*
3315	* @returns VBox status code (VINF_SUCCESS).
3316	* @param pVM The VM handle.
3317	* @param cr3 The root of the hierarchy.
3318	* @param cr4 The CR4, PSE is currently used.
3319	* @param cMaxDepth How deep into the hierarchy the dumper should go.
3320	* @param pHlp Pointer to the output functions.
3321	*/
3322	int pgmR3DumpHierarchyHC32BitPD(PVM pVM, uint32_t cr3, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3323	{
3324	PX86PD pPD = (PX86PD)MMPagePhys2Page(pVM, cr3 & X86_CR3_PAGE_MASK);
3325	if (!pPD)
3326	{
3327	pHlp->pfnPrintf(pHlp, "Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK);
3328	return VERR_INVALID_PARAMETER;
3329	}
3330
3331	int rc = VINF_SUCCESS;
3332	for (unsigned i = 0; i < ELEMENTS(pPD->a); i++)
3333	{
3334	X86PDE Pde = pPD->a[i];
3335	if (Pde.n.u1Present)
3336	{
3337	const uint32_t u32Address = i << X86_PD_SHIFT;
3338	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
3339	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3340	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
3341	u32Address,
3342	Pde.b.u1Write ? 'W' : 'R',
3343	Pde.b.u1User ? 'U' : 'S',
3344	Pde.b.u1Accessed ? 'A' : '-',
3345	Pde.b.u1Dirty ? 'D' : '-',
3346	Pde.b.u1Global ? 'G' : '-',
3347	Pde.b.u1WriteThru ? "WT" : "--",
3348	Pde.b.u1CacheDisable? "CD" : "--",
3349	Pde.b.u1PAT ? "AT" : "--",
3350	Pde.u & RT_BIT_64(9) ? '1' : '0',
3351	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3352	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3353	Pde.u & X86_PDE4M_PG_MASK);
3354	else
3355	{
3356	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3357	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
3358	u32Address,
3359	Pde.n.u1Write ? 'W' : 'R',
3360	Pde.n.u1User ? 'U' : 'S',
3361	Pde.n.u1Accessed ? 'A' : '-',
3362	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3363	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3364	Pde.n.u1WriteThru ? "WT" : "--",
3365	Pde.n.u1CacheDisable? "CD" : "--",
3366	Pde.u & RT_BIT_64(9) ? '1' : '0',
3367	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3368	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3369	Pde.u & X86_PDE_PG_MASK);
3370	if (cMaxDepth >= 1)
3371	{
3372	/** @todo what about using the page pool for mapping PTs? */
3373	RTHCPHYS HCPhys = Pde.u & X86_PDE_PG_MASK;
3374	PX86PT pPT = NULL;
3375	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
3376	pPT = (PX86PT)MMPagePhys2Page(pVM, HCPhys);
3377	else
3378	{
3379	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
3380	if (u32Address - pMap->GCPtr < pMap->cb)
3381	{
3382	int iPDE = (u32Address - pMap->GCPtr) >> X86_PD_SHIFT;
3383	if (pMap->aPTs[iPDE].HCPhysPT != HCPhys)
3384	pHlp->pfnPrintf(pHlp, "%08x error! Mapping error! PT %d has HCPhysPT=%VHp not %VHp is in the PD.\n",
3385	u32Address, iPDE, pMap->aPTs[iPDE].HCPhysPT, HCPhys);
3386	pPT = pMap->aPTs[iPDE].pPTR3;
3387	}
3388	}
3389	int rc2 = VERR_INVALID_PARAMETER;
3390	if (pPT)
3391	rc2 = pgmR3DumpHierarchyHC32BitPT(pVM, pPT, u32Address, pHlp);
3392	else
3393	pHlp->pfnPrintf(pHlp, "%08x error! Page table at %#x was not found in the page pool!\n", u32Address, HCPhys);
3394	if (rc2 < rc && VBOX_SUCCESS(rc))
3395	rc = rc2;
3396	}
3397	}
3398	}
3399	}
3400
3401	return rc;
3402	}
3403
3404
3405	/**
3406	* Dumps a 32-bit shadow page table.
3407	*
3408	* @returns VBox status code (VINF_SUCCESS).
3409	* @param pVM The VM handle.
3410	* @param pPT Pointer to the page table.
3411	* @param u32Address The virtual address this table starts at.
3412	* @param PhysSearch Address to search for.
3413	*/
3414	int pgmR3DumpHierarchyGC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, RTGCPHYS PhysSearch)
3415	{
3416	for (unsigned i = 0; i < ELEMENTS(pPT->a); i++)
3417	{
3418	X86PTE Pte = pPT->a[i];
3419	if (Pte.n.u1Present)
3420	{
3421	Log(( /P R S A D G WT CD AT NX 4M a m d /
3422	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
3423	u32Address + (i << X86_PT_SHIFT),
3424	Pte.n.u1Write ? 'W' : 'R',
3425	Pte.n.u1User ? 'U' : 'S',
3426	Pte.n.u1Accessed ? 'A' : '-',
3427	Pte.n.u1Dirty ? 'D' : '-',
3428	Pte.n.u1Global ? 'G' : '-',
3429	Pte.n.u1WriteThru ? "WT" : "--",
3430	Pte.n.u1CacheDisable? "CD" : "--",
3431	Pte.n.u1PAT ? "AT" : "--",
3432	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3433	Pte.u & RT_BIT(10) ? '1' : '0',
3434	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
3435	Pte.u & X86_PDE_PG_MASK));
3436
3437	if ((Pte.u & X86_PDE_PG_MASK) == PhysSearch)
3438	{
3439	uint64_t fPageShw = 0;
3440	RTHCPHYS pPhysHC = 0;
3441
3442	PGMShwGetPage(pVM, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), &fPageShw, &pPhysHC);
3443	Log(("Found %VGp at %VGv -> flags=%llx\n", PhysSearch, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), fPageShw));
3444	}
3445	}
3446	}
3447	return VINF_SUCCESS;
3448	}
3449
3450
3451	/**
3452	* Dumps a 32-bit guest page directory and page tables.
3453	*
3454	* @returns VBox status code (VINF_SUCCESS).
3455	* @param pVM The VM handle.
3456	* @param cr3 The root of the hierarchy.
3457	* @param cr4 The CR4, PSE is currently used.
3458	* @param PhysSearch Address to search for.
3459	*/
3460	PGMR3DECL(int) PGMR3DumpHierarchyGC(PVM pVM, uint32_t cr3, uint32_t cr4, RTGCPHYS PhysSearch)
3461	{
3462	bool fLongMode = false;
3463	const unsigned cch = fLongMode ? 16 : 8; NOREF(cch);
3464	PX86PD pPD = 0;
3465
3466	int rc = PGM_GCPHYS_2_PTR(pVM, cr3 & X86_CR3_PAGE_MASK, &pPD);
3467	if (VBOX_FAILURE(rc) \|\| !pPD)
3468	{
3469	Log(("Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK));
3470	return VERR_INVALID_PARAMETER;
3471	}
3472
3473	Log(("cr3=%08x cr4=%08x%s\n"
3474	"%-*s P - Present\n"
3475	"%-*s \| R/W - Read (0) / Write (1)\n"
3476	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
3477	"%-*s \| \| \| A - Accessed\n"
3478	"%-*s \| \| \| \| D - Dirty\n"
3479	"%-*s \| \| \| \| \| G - Global\n"
3480	"%-*s \| \| \| \| \| \| WT - Write thru\n"
3481	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
3482	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
3483	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
3484	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
3485	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
3486	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
3487	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
3488	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
3489	- W U - - - -- -- -- -- -- 010 */
3490	, cr3, cr4, fLongMode ? " Long Mode" : "",
3491	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
3492	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address"));
3493
3494	for (unsigned i = 0; i < ELEMENTS(pPD->a); i++)
3495	{
3496	X86PDE Pde = pPD->a[i];
3497	if (Pde.n.u1Present)
3498	{
3499	const uint32_t u32Address = i << X86_PD_SHIFT;
3500
3501	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
3502	Log(( /P R S A D G WT CD AT NX 4M a m d /
3503	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
3504	u32Address,
3505	Pde.b.u1Write ? 'W' : 'R',
3506	Pde.b.u1User ? 'U' : 'S',
3507	Pde.b.u1Accessed ? 'A' : '-',
3508	Pde.b.u1Dirty ? 'D' : '-',
3509	Pde.b.u1Global ? 'G' : '-',
3510	Pde.b.u1WriteThru ? "WT" : "--",
3511	Pde.b.u1CacheDisable? "CD" : "--",
3512	Pde.b.u1PAT ? "AT" : "--",
3513	Pde.u & RT_BIT(9) ? '1' : '0',
3514	Pde.u & RT_BIT(10) ? '1' : '0',
3515	Pde.u & RT_BIT(11) ? '1' : '0',
3516	Pde.u & X86_PDE4M_PG_MASK));
3517	/** @todo PhysSearch */
3518	else
3519	{
3520	Log(( /P R S A D G WT CD AT NX 4M a m d /
3521	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
3522	u32Address,
3523	Pde.n.u1Write ? 'W' : 'R',
3524	Pde.n.u1User ? 'U' : 'S',
3525	Pde.n.u1Accessed ? 'A' : '-',
3526	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3527	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3528	Pde.n.u1WriteThru ? "WT" : "--",
3529	Pde.n.u1CacheDisable? "CD" : "--",
3530	Pde.u & RT_BIT(9) ? '1' : '0',
3531	Pde.u & RT_BIT(10) ? '1' : '0',
3532	Pde.u & RT_BIT(11) ? '1' : '0',
3533	Pde.u & X86_PDE_PG_MASK));
3534	////if (cMaxDepth >= 1)
3535	{
3536	/** @todo what about using the page pool for mapping PTs? */
3537	RTGCPHYS GCPhys = Pde.u & X86_PDE_PG_MASK;
3538	PX86PT pPT = NULL;
3539
3540	rc = PGM_GCPHYS_2_PTR(pVM, GCPhys, &pPT);
3541
3542	int rc2 = VERR_INVALID_PARAMETER;
3543	if (pPT)
3544	rc2 = pgmR3DumpHierarchyGC32BitPT(pVM, pPT, u32Address, PhysSearch);
3545	else
3546	Log(("%08x error! Page table at %#x was not found in the page pool!\n", u32Address, GCPhys));
3547	if (rc2 < rc && VBOX_SUCCESS(rc))
3548	rc = rc2;
3549	}
3550	}
3551	}
3552	}
3553
3554	return rc;
3555	}
3556
3557
3558	/**
3559	* Dumps a page table hierarchy use only physical addresses and cr4/lm flags.
3560	*
3561	* @returns VBox status code (VINF_SUCCESS).
3562	* @param pVM The VM handle.
3563	* @param cr3 The root of the hierarchy.
3564	* @param cr4 The cr4, only PAE and PSE is currently used.
3565	* @param fLongMode Set if long mode, false if not long mode.
3566	* @param cMaxDepth Number of levels to dump.
3567	* @param pHlp Pointer to the output functions.
3568	*/
3569	PGMR3DECL(int) PGMR3DumpHierarchyHC(PVM pVM, uint32_t cr3, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3570	{
3571	if (!pHlp)
3572	pHlp = DBGFR3InfoLogHlp();
3573	if (!cMaxDepth)
3574	return VINF_SUCCESS;
3575	const unsigned cch = fLongMode ? 16 : 8;
3576	pHlp->pfnPrintf(pHlp,
3577	"cr3=%08x cr4=%08x%s\n"
3578	"%-*s P - Present\n"
3579	"%-*s \| R/W - Read (0) / Write (1)\n"
3580	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
3581	"%-*s \| \| \| A - Accessed\n"
3582	"%-*s \| \| \| \| D - Dirty\n"
3583	"%-*s \| \| \| \| \| G - Global\n"
3584	"%-*s \| \| \| \| \| \| WT - Write thru\n"
3585	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
3586	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
3587	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
3588	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
3589	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
3590	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
3591	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
3592	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
3593	- W U - - - -- -- -- -- -- 010 */
3594	, cr3, cr4, fLongMode ? " Long Mode" : "",
3595	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
3596	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
3597	if (cr4 & X86_CR4_PAE)
3598	{
3599	if (fLongMode)
3600	return pgmR3DumpHierarchyHcPaePML4(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
3601	return pgmR3DumpHierarchyHCPaePDPTR(pVM, cr3 & X86_CR3_PAE_PAGE_MASK, 0, cr4, false, cMaxDepth, pHlp);
3602	}
3603	return pgmR3DumpHierarchyHC32BitPD(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
3604	}
3605
3606
3607
3608	#ifdef VBOX_WITH_DEBUGGER
3609	/**
3610	* The '.pgmram' command.
3611	*
3612	* @returns VBox status.
3613	* @param pCmd Pointer to the command descriptor (as registered).
3614	* @param pCmdHlp Pointer to command helper functions.
3615	* @param pVM Pointer to the current VM (if any).
3616	* @param paArgs Pointer to (readonly) array of arguments.
3617	* @param cArgs Number of arguments in the array.
3618	*/
3619	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3620	{
3621	/*
3622	* Validate input.
3623	*/
3624	if (!pVM)
3625	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
3626	if (!pVM->pgm.s.pRamRangesGC)
3627	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no Ram is registered.\n");
3628
3629	/*
3630	* Dump the ranges.
3631	*/
3632	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "From - To (incl) pvHC\n");
3633	PPGMRAMRANGE pRam;
3634	for (pRam = pVM->pgm.s.pRamRangesR3; pRam; pRam = pRam->pNextR3)
3635	{
3636	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
3637	"%VGp - %VGp %p\n",
3638	pRam->GCPhys, pRam->GCPhysLast, pRam->pvHC);
3639	if (VBOX_FAILURE(rc))
3640	return rc;
3641	}
3642
3643	return VINF_SUCCESS;
3644	}
3645
3646
3647	/**
3648	* The '.pgmmap' command.
3649	*
3650	* @returns VBox status.
3651	* @param pCmd Pointer to the command descriptor (as registered).
3652	* @param pCmdHlp Pointer to command helper functions.
3653	* @param pVM Pointer to the current VM (if any).
3654	* @param paArgs Pointer to (readonly) array of arguments.
3655	* @param cArgs Number of arguments in the array.
3656	*/
3657	static DECLCALLBACK(int) pgmR3CmdMap(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3658	{
3659	/*
3660	* Validate input.
3661	*/
3662	if (!pVM)
3663	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
3664	if (!pVM->pgm.s.pMappingsR3)
3665	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no mappings are registered.\n");
3666
3667	/*
3668	* Print message about the fixedness of the mappings.
3669	*/
3670	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, pVM->pgm.s.fMappingsFixed ? "The mappings are FIXED.\n" : "The mappings are FLOATING.\n");
3671	if (VBOX_FAILURE(rc))
3672	return rc;
3673
3674	/*
3675	* Dump the ranges.
3676	*/
3677	PPGMMAPPING pCur;
3678	for (pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
3679	{
3680	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
3681	"%08x - %08x %s\n",
3682	pCur->GCPtr, pCur->GCPtrLast, pCur->pszDesc);
3683	if (VBOX_FAILURE(rc))
3684	return rc;
3685	}
3686
3687	return VINF_SUCCESS;
3688	}
3689
3690
3691	/**
3692	* The '.pgmsync' command.
3693	*
3694	* @returns VBox status.
3695	* @param pCmd Pointer to the command descriptor (as registered).
3696	* @param pCmdHlp Pointer to command helper functions.
3697	* @param pVM Pointer to the current VM (if any).
3698	* @param paArgs Pointer to (readonly) array of arguments.
3699	* @param cArgs Number of arguments in the array.
3700	*/
3701	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3702	{
3703	/*
3704	* Validate input.
3705	*/
3706	if (!pVM)
3707	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
3708
3709	/*
3710	* Force page directory sync.
3711	*/
3712	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
3713
3714	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Forcing page directory sync.\n");
3715	if (VBOX_FAILURE(rc))
3716	return rc;
3717
3718	return VINF_SUCCESS;
3719	}
3720
3721
3722	/**
3723	* The '.pgmsyncalways' command.
3724	*
3725	* @returns VBox status.
3726	* @param pCmd Pointer to the command descriptor (as registered).
3727	* @param pCmdHlp Pointer to command helper functions.
3728	* @param pVM Pointer to the current VM (if any).
3729	* @param paArgs Pointer to (readonly) array of arguments.
3730	* @param cArgs Number of arguments in the array.
3731	*/
3732	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3733	{
3734	/*
3735	* Validate input.
3736	*/
3737	if (!pVM)
3738	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
3739
3740	/*
3741	* Force page directory sync.
3742	*/
3743	if (pVM->pgm.s.fSyncFlags & PGM_SYNC_ALWAYS)
3744	{
3745	ASMAtomicAndU32(&pVM->pgm.s.fSyncFlags, ~PGM_SYNC_ALWAYS);
3746	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Disabled permanent forced page directory syncing.\n");
3747	}
3748	else
3749	{
3750	ASMAtomicOrU32(&pVM->pgm.s.fSyncFlags, PGM_SYNC_ALWAYS);
3751	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
3752	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Enabled permanent forced page directory syncing.\n");
3753	}
3754	}
3755
3756	#endif
3757
3758	/**
3759	* pvUser argument of the pgmR3CheckIntegrity*Node callbacks.
3760	*/
3761	typedef struct PGMCHECKINTARGS
3762	{
3763	bool fLeftToRight; /*< true: left-to-right; false: right-to-left. /
3764	PPGMPHYSHANDLER pPrevPhys;
3765	PPGMVIRTHANDLER pPrevVirt;
3766	PPGMPHYS2VIRTHANDLER pPrevPhys2Virt;
3767	PVM pVM;
3768	} PGMCHECKINTARGS, *PPGMCHECKINTARGS;
3769
3770	/**
3771	* Validate a node in the physical handler tree.
3772	*
3773	* @returns 0 on if ok, other wise 1.
3774	* @param pNode The handler node.
3775	* @param pvUser pVM.
3776	*/
3777	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
3778	{
3779	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
3780	PPGMPHYSHANDLER pCur = (PPGMPHYSHANDLER)pNode;
3781	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
3782	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %VGp-%VGp %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
3783	AssertReleaseMsg( !pArgs->pPrevPhys
3784	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys->Core.KeyLast > pCur->Core.Key),
3785	("pPrevPhys=%p %VGp-%VGp %s\n"
3786	" pCur=%p %VGp-%VGp %s\n",
3787	pArgs->pPrevPhys, pArgs->pPrevPhys->Core.Key, pArgs->pPrevPhys->Core.KeyLast, pArgs->pPrevPhys->pszDesc,
3788	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
3789	pArgs->pPrevPhys = pCur;
3790	return 0;
3791	}
3792
3793
3794	/**
3795	* Validate a node in the virtual handler tree.
3796	*
3797	* @returns 0 on if ok, other wise 1.
3798	* @param pNode The handler node.
3799	* @param pvUser pVM.
3800	*/
3801	static DECLCALLBACK(int) pgmR3CheckIntegrityVirtHandlerNode(PAVLROGCPTRNODECORE pNode, void *pvUser)
3802	{
3803	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
3804	PPGMVIRTHANDLER pCur = (PPGMVIRTHANDLER)pNode;
3805	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
3806	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %VGv-%VGv %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
3807	AssertReleaseMsg( !pArgs->pPrevVirt
3808	\|\| (pArgs->fLeftToRight ? pArgs->pPrevVirt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevVirt->Core.KeyLast > pCur->Core.Key),
3809	("pPrevVirt=%p %VGv-%VGv %s\n"
3810	" pCur=%p %VGv-%VGv %s\n",
3811	pArgs->pPrevVirt, pArgs->pPrevVirt->Core.Key, pArgs->pPrevVirt->Core.KeyLast, pArgs->pPrevVirt->pszDesc,
3812	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
3813	for (unsigned iPage = 0; iPage < pCur->cPages; iPage++)
3814	{
3815	AssertReleaseMsg(pCur->aPhysToVirt[iPage].offVirtHandler == -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage]),
3816	("pCur=%p %VGv-%VGv %s\n"
3817	"iPage=%d offVirtHandle=%#x expected %#x\n",
3818	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc,
3819	iPage, pCur->aPhysToVirt[iPage].offVirtHandler, -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage])));
3820	}
3821	pArgs->pPrevVirt = pCur;
3822	return 0;
3823	}
3824
3825
3826	/**
3827	* Validate a node in the virtual handler tree.
3828	*
3829	* @returns 0 on if ok, other wise 1.
3830	* @param pNode The handler node.
3831	* @param pvUser pVM.
3832	*/
3833	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysToVirtHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
3834	{
3835	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
3836	PPGMPHYS2VIRTHANDLER pCur = (PPGMPHYS2VIRTHANDLER)pNode;
3837	AssertReleaseMsgReturn(!((uintptr_t)pCur & 3), ("\n"), 1);
3838	AssertReleaseMsgReturn(!(pCur->offVirtHandler & 3), ("\n"), 1);
3839	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %VGp-%VGp\n", pCur, pCur->Core.Key, pCur->Core.KeyLast));
3840	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
3841	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
3842	("pPrevPhys2Virt=%p %VGp-%VGp\n"
3843	" pCur=%p %VGp-%VGp\n",
3844	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
3845	pCur, pCur->Core.Key, pCur->Core.KeyLast));
3846	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
3847	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
3848	("pPrevPhys2Virt=%p %VGp-%VGp\n"
3849	" pCur=%p %VGp-%VGp\n",
3850	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
3851	pCur, pCur->Core.Key, pCur->Core.KeyLast));
3852	AssertReleaseMsg((pCur->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD),
3853	("pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3854	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
3855	if (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
3856	{
3857	PPGMPHYS2VIRTHANDLER pCur2 = pCur;
3858	for (;;)
3859	{
3860	pCur2 = (PPGMPHYS2VIRTHANDLER)((intptr_t)pCur + (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
3861	AssertReleaseMsg(pCur2 != pCur,
3862	(" pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3863	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
3864	AssertReleaseMsg((pCur2->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == PGMPHYS2VIRTHANDLER_IN_TREE,
3865	(" pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
3866	"pCur2=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3867	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
3868	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
3869	AssertReleaseMsg((pCur2->Core.Key ^ pCur->Core.Key) < PAGE_SIZE,
3870	(" pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
3871	"pCur2=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3872	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
3873	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
3874	AssertReleaseMsg((pCur2->Core.KeyLast ^ pCur->Core.KeyLast) < PAGE_SIZE,
3875	(" pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
3876	"pCur2=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3877	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
3878	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
3879	if (!(pCur2->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
3880	break;
3881	}
3882	}
3883
3884	pArgs->pPrevPhys2Virt = pCur;
3885	return 0;
3886	}
3887
3888
3889	/**
3890	* Perform an integrity check on the PGM component.
3891	*
3892	* @returns VINF_SUCCESS if everything is fine.
3893	* @returns VBox error status after asserting on integrity breach.
3894	* @param pVM The VM handle.
3895	*/
3896	PDMR3DECL(int) PGMR3CheckIntegrity(PVM pVM)
3897	{
3898	AssertReleaseReturn(pVM->pgm.s.offVM, VERR_INTERNAL_ERROR);
3899
3900	/*
3901	* Check the trees.
3902	*/
3903	int cErrors = 0;
3904	PGMCHECKINTARGS Args = { true, NULL, NULL, NULL, pVM };
3905	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysHandlers, true, pgmR3CheckIntegrityPhysHandlerNode, &Args);
3906	Args.fLeftToRight = false;
3907	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysHandlers, false, pgmR3CheckIntegrityPhysHandlerNode, &Args);
3908	Args.fLeftToRight = true;
3909	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesHC->VirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
3910	Args.fLeftToRight = false;
3911	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesHC->VirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
3912	Args.fLeftToRight = true;
3913	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesHC->HyperVirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
3914	Args.fLeftToRight = false;
3915	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesHC->HyperVirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
3916	Args.fLeftToRight = true;
3917	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysToVirtHandlers, true, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
3918	Args.fLeftToRight = false;
3919	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysToVirtHandlers, false, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
3920
3921	return !cErrors ? VINF_SUCCESS : VERR_INTERNAL_ERROR;
3922	}
3923
3924
3925	/**
3926	* Inform PGM if we want all mappings to be put into the shadow page table. (necessary for e.g. VMX)
3927	*
3928	* @returns VBox status code.
3929	* @param pVM VM handle.
3930	* @param fEnable Enable or disable shadow mappings
3931	*/
3932	PGMR3DECL(int) PGMR3ChangeShwPDMappings(PVM pVM, bool fEnable)
3933	{
3934	pVM->pgm.s.fDisableMappings = !fEnable;
3935
3936	uint32_t cb;
3937	int rc = PGMR3MappingsSize(pVM, &cb);
3938	AssertRCReturn(rc, rc);
3939
3940	/* Pretend the mappings are now fixed; to force a refresh of the reserved PDEs. */
3941	rc = PGMR3MappingsFix(pVM, MM_HYPER_AREA_ADDRESS, cb);
3942	AssertRCReturn(rc, rc);
3943
3944	return VINF_SUCCESS;
3945	}

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source: vbox/trunk/src/VBox/VMM/PGM.cpp@ 7689

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