PGM.cpp@ 8889

Last change on this file since 8889 was 8677, checked in by vboxsync, 17 years ago
Fixed lock accounting for locks aquired via VMM[GC\|R0]CallHost.
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 183.9 KB

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1	/* $Id: PGM.cpp 8677 2008-05-07 18:13:32Z vboxsync $ */
2	/** @file
3	* PGM - Page Manager and Monitor. (Mixing stuff here, not good?)
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22
23	/** @page pg_pgm PGM - The Page Manager and Monitor
24	*
25	*
26	*
27	* @section sec_pgm_modes Paging Modes
28	*
29	* There are three memory contexts: Host Context (HC), Guest Context (GC)
30	* and intermediate context. When talking about paging HC can also be refered to
31	* as "host paging", and GC refered to as "shadow paging".
32	*
33	* We define three basic paging modes: 32-bit, PAE and AMD64. The host paging mode
34	* is defined by the host operating system. The mode used in the shadow paging mode
35	* depends on the host paging mode and what the mode the guest is currently in. The
36	* following relation between the two is defined:
37	*
38	* @verbatim
39	Host > 32-bit \| PAE \| AMD64 \|
40	Guest \| \| \| \|
41	==v================================
42	32-bit 32-bit PAE PAE
43	-------\|--------\|--------\|--------\|
44	PAE PAE PAE PAE
45	-------\|--------\|--------\|--------\|
46	AMD64 AMD64 AMD64 AMD64
47	-------\|--------\|--------\|--------\| @endverbatim
48	*
49	* All configuration except those in the diagonal (upper left) are expected to
50	* require special effort from the switcher (i.e. a bit slower).
51	*
52	*
53	*
54	*
55	* @section sec_pgm_shw The Shadow Memory Context
56	*
57	*
58	* [..]
59	*
60	* Because of guest context mappings requires PDPT and PML4 entries to allow
61	* writing on AMD64, the two upper levels will have fixed flags whatever the
62	* guest is thinking of using there. So, when shadowing the PD level we will
63	* calculate the effective flags of PD and all the higher levels. In legacy
64	* PAE mode this only applies to the PWT and PCD bits (the rest are
65	* ignored/reserved/MBZ). We will ignore those bits for the present.
66	*
67	*
68	*
69	* @section sec_pgm_int The Intermediate Memory Context
70	*
71	* The world switch goes thru an intermediate memory context which purpose it is
72	* to provide different mappings of the switcher code. All guest mappings are also
73	* present in this context.
74	*
75	* The switcher code is mapped at the same location as on the host, at an
76	* identity mapped location (physical equals virtual address), and at the
77	* hypervisor location.
78	*
79	* PGM maintain page tables for 32-bit, PAE and AMD64 paging modes. This
80	* simplifies switching guest CPU mode and consistency at the cost of more
81	* code to do the work. All memory use for those page tables is located below
82	* 4GB (this includes page tables for guest context mappings).
83	*
84	*
85	* @subsection subsec_pgm_int_gc Guest Context Mappings
86	*
87	* During assignment and relocation of a guest context mapping the intermediate
88	* memory context is used to verify the new location.
89	*
90	* Guest context mappings are currently restricted to below 4GB, for reasons
91	* of simplicity. This may change when we implement AMD64 support.
92	*
93	*
94	*
95	*
96	* @section sec_pgm_misc Misc
97	*
98	* @subsection subsec_pgm_misc_diff Differences Between Legacy PAE and Long Mode PAE
99	*
100	* The differences between legacy PAE and long mode PAE are:
101	* -# PDPE bits 1, 2, 5 and 6 are defined differently. In leagcy mode they are
102	* all marked down as must-be-zero, while in long mode 1, 2 and 5 have the
103	* usual meanings while 6 is ignored (AMD). This means that upon switching to
104	* legacy PAE mode we'll have to clear these bits and when going to long mode
105	* they must be set. This applies to both intermediate and shadow contexts,
106	* however we don't need to do it for the intermediate one since we're
107	* executing with CR0.WP at that time.
108	* -# CR3 allows a 32-byte aligned address in legacy mode, while in long mode
109	* a page aligned one is required.
110	*
111	*
112	* @section sec_pgm_handlers Access Handlers
113	*
114	* Placeholder.
115	*
116	*
117	* @subsection sec_pgm_handlers_virt Virtual Access Handlers
118	*
119	* Placeholder.
120	*
121	*
122	* @subsection sec_pgm_handlers_virt Virtual Access Handlers
123	*
124	* We currently implement three types of virtual access handlers: ALL, WRITE
125	* and HYPERVISOR (WRITE). See PGMVIRTHANDLERTYPE for some more details.
126	*
127	* The HYPERVISOR access handlers is kept in a separate tree since it doesn't apply
128	* to physical pages (PGMTREES::HyperVirtHandlers) and only needs to be consulted in
129	* a special \#PF case. The ALL and WRITE are in the PGMTREES::VirtHandlers tree, the
130	* rest of this section is going to be about these handlers.
131	*
132	* We'll go thru the life cycle of a handler and try make sense of it all, don't know
133	* how successfull this is gonna be...
134	*
135	* 1. A handler is registered thru the PGMR3HandlerVirtualRegister and
136	* PGMHandlerVirtualRegisterEx APIs. We check for conflicting virtual handlers
137	* and create a new node that is inserted into the AVL tree (range key). Then
138	* a full PGM resync is flagged (clear pool, sync cr3, update virtual bit of PGMPAGE).
139	*
140	* 2. The following PGMSyncCR3/SyncCR3 operation will first make invoke HandlerVirtualUpdate.
141	*
142	* 2a. HandlerVirtualUpdate will will lookup all the pages covered by virtual handlers
143	* via the current guest CR3 and update the physical page -> virtual handler
144	* translation. Needless to say, this doesn't exactly scale very well. If any changes
145	* are detected, it will flag a virtual bit update just like we did on registration.
146	* PGMPHYS pages with changes will have their virtual handler state reset to NONE.
147	*
148	* 2b. The virtual bit update process will iterate all the pages covered by all the
149	* virtual handlers and update the PGMPAGE virtual handler state to the max of all
150	* virtual handlers on that page.
151	*
152	* 2c. Back in SyncCR3 we will now flush the entire shadow page cache to make sure
153	* we don't miss any alias mappings of the monitored pages.
154	*
155	* 2d. SyncCR3 will then proceed with syncing the CR3 table.
156	*
157	* 3. \#PF(np,read) on a page in the range. This will cause it to be synced
158	* read-only and resumed if it's a WRITE handler. If it's an ALL handler we
159	* will call the handlers like in the next step. If the physical mapping has
160	* changed we will - some time in the future - perform a handler callback
161	* (optional) and update the physical -> virtual handler cache.
162	*
163	* 4. \#PF(,write) on a page in the range. This will cause the handler to
164	* be invoked.
165	*
166	* 5. The guest invalidates the page and changes the physical backing or
167	* unmaps it. This should cause the invalidation callback to be invoked
168	* (it might not yet be 100% perfect). Exactly what happens next... is
169	* this where we mess up and end up out of sync for a while?
170	*
171	* 6. The handler is deregistered by the client via PGMHandlerVirtualDeregister.
172	* We will then set all PGMPAGEs in the physical -> virtual handler cache for
173	* this handler to NONE and trigger a full PGM resync (basically the same
174	* as int step 1). Which means 2 is executed again.
175	*
176	*
177	* @subsubsection sub_sec_pgm_handler_virt_todo TODOs
178	*
179	* There is a bunch of things that needs to be done to make the virtual handlers
180	* work 100% correctly and work more efficiently.
181	*
182	* The first bit hasn't been implemented yet because it's going to slow the
183	* whole mess down even more, and besides it seems to be working reliably for
184	* our current uses. OTOH, some of the optimizations might end up more or less
185	* implementing the missing bits, so we'll see.
186	*
187	* On the optimization side, the first thing to do is to try avoid unnecessary
188	* cache flushing. Then try team up with the shadowing code to track changes
189	* in mappings by means of access to them (shadow in), updates to shadows pages,
190	* invlpg, and shadow PT discarding (perhaps).
191	*
192	* Some idea that have popped up for optimization for current and new features:
193	* - bitmap indicating where there are virtual handlers installed.
194	* (4KB => 220 pages, page 212 => covers 32-bit address space 1:1!)
195	* - Further optimize this by min/max (needs min/max avl getters).
196	* - Shadow page table entry bit (if any left)?
197	*
198	*/
199
200
201	/** @page pg_pgmPhys PGMPhys - Physical Guest Memory Management.
202	*
203	*
204	* Objectives:
205	* - Guest RAM over-commitment using memory ballooning,
206	* zero pages and general page sharing.
207	* - Moving or mirroring a VM onto a different physical machine.
208	*
209	*
210	* @subsection subsec_pgmPhys_Definitions Definitions
211	*
212	* Allocation chunk - A RTR0MemObjAllocPhysNC object and the tracking
213	* machinery assoicated with it.
214	*
215	*
216	*
217	*
218	* @subsection subsec_pgmPhys_AllocPage Allocating a page.
219	*
220	* Initially we map all guest memory to the (per VM) zero page, which
221	* means that none of the read functions will cause pages to be allocated.
222	*
223	* Exception, access bit in page tables that have been shared. This must
224	* be handled, but we must also make sure PGMGst*Modify doesn't make
225	* unnecessary modifications.
226	*
227	* Allocation points:
228	* - PGMPhysWriteGCPhys and PGMPhysWrite.
229	* - Replacing a zero page mapping at \#PF.
230	* - Replacing a shared page mapping at \#PF.
231	* - ROM registration (currently MMR3RomRegister).
232	* - VM restore (pgmR3Load).
233	*
234	* For the first three it would make sense to keep a few pages handy
235	* until we've reached the max memory commitment for the VM.
236	*
237	* For the ROM registration, we know exactly how many pages we need
238	* and will request these from ring-0. For restore, we will save
239	* the number of non-zero pages in the saved state and allocate
240	* them up front. This would allow the ring-0 component to refuse
241	* the request if the isn't sufficient memory available for VM use.
242	*
243	* Btw. for both ROM and restore allocations we won't be requiring
244	* zeroed pages as they are going to be filled instantly.
245	*
246	*
247	* @subsection subsec_pgmPhys_FreePage Freeing a page
248	*
249	* There are a few points where a page can be freed:
250	* - After being replaced by the zero page.
251	* - After being replaced by a shared page.
252	* - After being ballooned by the guest additions.
253	* - At reset.
254	* - At restore.
255	*
256	* When freeing one or more pages they will be returned to the ring-0
257	* component and replaced by the zero page.
258	*
259	* The reasoning for clearing out all the pages on reset is that it will
260	* return us to the exact same state as on power on, and may thereby help
261	* us reduce the memory load on the system. Further it might have a
262	* (temporary) positive influence on memory fragmentation (@see subsec_pgmPhys_Fragmentation).
263	*
264	* On restore, as mention under the allocation topic, pages should be
265	* freed / allocated depending on how many is actually required by the
266	* new VM state. The simplest approach is to do like on reset, and free
267	* all non-ROM pages and then allocate what we need.
268	*
269	* A measure to prevent some fragmentation, would be to let each allocation
270	* chunk have some affinity towards the VM having allocated the most pages
271	* from it. Also, try make sure to allocate from allocation chunks that
272	* are almost full. Admittedly, both these measures might work counter to
273	* our intentions and its probably not worth putting a lot of effort,
274	* cpu time or memory into this.
275	*
276	*
277	* @subsection subsec_pgmPhys_SharePage Sharing a page
278	*
279	* The basic idea is that there there will be a idle priority kernel
280	* thread walking the non-shared VM pages hashing them and looking for
281	* pages with the same checksum. If such pages are found, it will compare
282	* them byte-by-byte to see if they actually are identical. If found to be
283	* identical it will allocate a shared page, copy the content, check that
284	* the page didn't change while doing this, and finally request both the
285	* VMs to use the shared page instead. If the page is all zeros (special
286	* checksum and byte-by-byte check) it will request the VM that owns it
287	* to replace it with the zero page.
288	*
289	* To make this efficient, we will have to make sure not to try share a page
290	* that will change its contents soon. This part requires the most work.
291	* A simple idea would be to request the VM to write monitor the page for
292	* a while to make sure it isn't modified any time soon. Also, it may
293	* make sense to skip pages that are being write monitored since this
294	* information is readily available to the thread if it works on the
295	* per-VM guest memory structures (presently called PGMRAMRANGE).
296	*
297	*
298	* @subsection subsec_pgmPhys_Fragmentation Fragmentation Concerns and Counter Measures
299	*
300	* The pages are organized in allocation chunks in ring-0, this is a necessity
301	* if we wish to have an OS agnostic approach to this whole thing. (On Linux we
302	* could easily work on a page-by-page basis if we liked. Whether this is possible
303	* or efficient on NT I don't quite know.) Fragmentation within these chunks may
304	* become a problem as part of the idea here is that we wish to return memory to
305	* the host system.
306	*
307	* For instance, starting two VMs at the same time, they will both allocate the
308	* guest memory on-demand and if permitted their page allocations will be
309	* intermixed. Shut down one of the two VMs and it will be difficult to return
310	* any memory to the host system because the page allocation for the two VMs are
311	* mixed up in the same allocation chunks.
312	*
313	* To further complicate matters, when pages are freed because they have been
314	* ballooned or become shared/zero the whole idea is that the page is supposed
315	* to be reused by another VM or returned to the host system. This will cause
316	* allocation chunks to contain pages belonging to different VMs and prevent
317	* returning memory to the host when one of those VM shuts down.
318	*
319	* The only way to really deal with this problem is to move pages. This can
320	* either be done at VM shutdown and or by the idle priority worker thread
321	* that will be responsible for finding sharable/zero pages. The mechanisms
322	* involved for coercing a VM to move a page (or to do it for it) will be
323	* the same as when telling it to share/zero a page.
324	*
325	*
326	* @subsection subsec_pgmPhys_Tracking Tracking Structures And Their Cost
327	*
328	* There's a difficult balance between keeping the per-page tracking structures
329	* (global and guest page) easy to use and keeping them from eating too much
330	* memory. We have limited virtual memory resources available when operating in
331	* 32-bit kernel space (on 64-bit there'll it's quite a different story). The
332	* tracking structures will be attemted designed such that we can deal with up
333	* to 32GB of memory on a 32-bit system and essentially unlimited on 64-bit ones.
334	*
335	*
336	* @subsubsection subsubsec_pgmPhys_Tracking_Kernel Kernel Space
337	*
338	* @see pg_GMM
339	*
340	* @subsubsection subsubsec_pgmPhys_Tracking_PerVM Per-VM
341	*
342	* Fixed info is the physical address of the page (HCPhys) and the page id
343	* (described above). Theoretically we'll need 48(-12) bits for the HCPhys part.
344	* Today we've restricting ourselves to 40(-12) bits because this is the current
345	* restrictions of all AMD64 implementations (I think Barcelona will up this
346	* to 48(-12) bits, not that it really matters) and I needed the bits for
347	* tracking mappings of a page. 48-12 = 36. That leaves 28 bits, which means a
348	* decent range for the page id: 2^(28+12) = 1024TB.
349	*
350	* In additions to these, we'll have to keep maintaining the page flags as we
351	* currently do. Although it wouldn't harm to optimize these quite a bit, like
352	* for instance the ROM shouldn't depend on having a write handler installed
353	* in order for it to become read-only. A RO/RW bit should be considered so
354	* that the page syncing code doesn't have to mess about checking multiple
355	* flag combinations (ROM \|\| RW handler \|\| write monitored) in order to
356	* figure out how to setup a shadow PTE. But this of course, is second
357	* priority at present. Current this requires 12 bits, but could probably
358	* be optimized to ~8.
359	*
360	* Then there's the 24 bits used to track which shadow page tables are
361	* currently mapping a page for the purpose of speeding up physical
362	* access handlers, and thereby the page pool cache. More bit for this
363	* purpose wouldn't hurt IIRC.
364	*
365	* Then there is a new bit in which we need to record what kind of page
366	* this is, shared, zero, normal or write-monitored-normal. This'll
367	* require 2 bits. One bit might be needed for indicating whether a
368	* write monitored page has been written to. And yet another one or
369	* two for tracking migration status. 3-4 bits total then.
370	*
371	* Whatever is left will can be used to record the sharabilitiy of a
372	* page. The page checksum will not be stored in the per-VM table as
373	* the idle thread will not be permitted to do modifications to it.
374	* It will instead have to keep its own working set of potentially
375	* shareable pages and their check sums and stuff.
376	*
377	* For the present we'll keep the current packing of the
378	* PGMRAMRANGE::aHCPhys to keep the changes simple, only of course,
379	* we'll have to change it to a struct with a total of 128-bits at
380	* our disposal.
381	*
382	* The initial layout will be like this:
383	* @verbatim
384	RTHCPHYS HCPhys; The current stuff.
385	63:40 Current shadow PT tracking stuff.
386	39:12 The physical page frame number.
387	11:0 The current flags.
388	uint32_t u28PageId : 28; The page id.
389	uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
390	uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
391	uint32_t u1Reserved : 1; Reserved for later.
392	uint32_t u32Reserved; Reserved for later, mostly sharing stats.
393	@endverbatim
394	*
395	* The final layout will be something like this:
396	* @verbatim
397	RTHCPHYS HCPhys; The current stuff.
398	63:48 High page id (12+).
399	47:12 The physical page frame number.
400	11:0 Low page id.
401	uint32_t fReadOnly : 1; Whether it's readonly page (rom or monitored in some way).
402	uint32_t u3Type : 3; The page type {RESERVED, MMIO, MMIO2, ROM, shadowed ROM, RAM}.
403	uint32_t u2PhysMon : 2; Physical access handler type {none, read, write, all}.
404	uint32_t u2VirtMon : 2; Virtual access handler type {none, read, write, all}..
405	uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
406	uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
407	uint32_t u20Reserved : 20; Reserved for later, mostly sharing stats.
408	uint32_t u32Tracking; The shadow PT tracking stuff, roughly.
409	@endverbatim
410	*
411	* Cost wise, this means we'll double the cost for guest memory. There isn't anyway
412	* around that I'm afraid. It means that the cost of dealing out 32GB of memory
413	* to one or more VMs is: (32GB >> PAGE_SHIFT) * 16 bytes, or 128MBs. Or another
414	* example, the VM heap cost when assigning 1GB to a VM will be: 4MB.
415	*
416	* A couple of cost examples for the total cost per-VM + kernel.
417	* 32-bit Windows and 32-bit linux:
418	* 1GB guest ram, 256K pages: 4MB + 2MB(+) = 6MB
419	* 4GB guest ram, 1M pages: 16MB + 8MB(+) = 24MB
420	* 32GB guest ram, 8M pages: 128MB + 64MB(+) = 192MB
421	* 64-bit Windows and 64-bit linux:
422	* 1GB guest ram, 256K pages: 4MB + 3MB(+) = 7MB
423	* 4GB guest ram, 1M pages: 16MB + 12MB(+) = 28MB
424	* 32GB guest ram, 8M pages: 128MB + 96MB(+) = 224MB
425	*
426	* UPDATE - 2007-09-27:
427	* Will need a ballooned flag/state too because we cannot
428	* trust the guest 100% and reporting the same page as ballooned more
429	* than once will put the GMM off balance.
430	*
431	*
432	* @subsection subsec_pgmPhys_Serializing Serializing Access
433	*
434	* Initially, we'll try a simple scheme:
435	*
436	* - The per-VM RAM tracking structures (PGMRAMRANGE) is only modified
437	* by the EMT thread of that VM while in the pgm critsect.
438	* - Other threads in the VM process that needs to make reliable use of
439	* the per-VM RAM tracking structures will enter the critsect.
440	* - No process external thread or kernel thread will ever try enter
441	* the pgm critical section, as that just won't work.
442	* - The idle thread (and similar threads) doesn't not need 100% reliable
443	* data when performing it tasks as the EMT thread will be the one to
444	* do the actual changes later anyway. So, as long as it only accesses
445	* the main ram range, it can do so by somehow preventing the VM from
446	* being destroyed while it works on it...
447	*
448	* - The over-commitment management, including the allocating/freeing
449	* chunks, is serialized by a ring-0 mutex lock (a fast one since the
450	* more mundane mutex implementation is broken on Linux).
451	* - A separeate mutex is protecting the set of allocation chunks so
452	* that pages can be shared or/and freed up while some other VM is
453	* allocating more chunks. This mutex can be take from under the other
454	* one, but not the otherway around.
455	*
456	*
457	* @subsection subsec_pgmPhys_Request VM Request interface
458	*
459	* When in ring-0 it will become necessary to send requests to a VM so it can
460	* for instance move a page while defragmenting during VM destroy. The idle
461	* thread will make use of this interface to request VMs to setup shared
462	* pages and to perform write monitoring of pages.
463	*
464	* I would propose an interface similar to the current VMReq interface, similar
465	* in that it doesn't require locking and that the one sending the request may
466	* wait for completion if it wishes to. This shouldn't be very difficult to
467	* realize.
468	*
469	* The requests themselves are also pretty simple. They are basically:
470	* -# Check that some precondition is still true.
471	* -# Do the update.
472	* -# Update all shadow page tables involved with the page.
473	*
474	* The 3rd step is identical to what we're already doing when updating a
475	* physical handler, see pgmHandlerPhysicalSetRamFlagsAndFlushShadowPTs.
476	*
477	*
478	*
479	* @section sec_pgmPhys_MappingCaches Mapping Caches
480	*
481	* In order to be able to map in and out memory and to be able to support
482	* guest with more RAM than we've got virtual address space, we'll employing
483	* a mapping cache. There is already a tiny one for GC (see PGMGCDynMapGCPageEx)
484	* and we'll create a similar one for ring-0 unless we decide to setup a dedicate
485	* memory context for the HWACCM execution.
486	*
487	*
488	* @subsection subsec_pgmPhys_MappingCaches_R3 Ring-3
489	*
490	* We've considered implementing the ring-3 mapping cache page based but found
491	* that this was bother some when one had to take into account TLBs+SMP and
492	* portability (missing the necessary APIs on several platforms). There were
493	* also some performance concerns with this approach which hadn't quite been
494	* worked out.
495	*
496	* Instead, we'll be mapping allocation chunks into the VM process. This simplifies
497	* matters greatly quite a bit since we don't need to invent any new ring-0 stuff,
498	* only some minor RTR0MEMOBJ mapping stuff. The main concern here is that mapping
499	* compared to the previous idea is that mapping or unmapping a 1MB chunk is more
500	* costly than a single page, although how much more costly is uncertain. We'll
501	* try address this by using a very big cache, preferably bigger than the actual
502	* VM RAM size if possible. The current VM RAM sizes should give some idea for
503	* 32-bit boxes, while on 64-bit we can probably get away with employing an
504	* unlimited cache.
505	*
506	* The cache have to parts, as already indicated, the ring-3 side and the
507	* ring-0 side.
508	*
509	* The ring-0 will be tied to the page allocator since it will operate on the
510	* memory objects it contains. It will therefore require the first ring-0 mutex
511	* discussed in @ref subsec_pgmPhys_Serializing. We
512	* some double house keeping wrt to who has mapped what I think, since both
513	* VMMR0.r0 and RTR0MemObj will keep track of mapping relataions
514	*
515	* The ring-3 part will be protected by the pgm critsect. For simplicity, we'll
516	* require anyone that desires to do changes to the mapping cache to do that
517	* from within this critsect. Alternatively, we could employ a separate critsect
518	* for serializing changes to the mapping cache as this would reduce potential
519	* contention with other threads accessing mappings unrelated to the changes
520	* that are in process. We can see about this later, contention will show
521	* up in the statistics anyway, so it'll be simple to tell.
522	*
523	* The organization of the ring-3 part will be very much like how the allocation
524	* chunks are organized in ring-0, that is in an AVL tree by chunk id. To avoid
525	* having to walk the tree all the time, we'll have a couple of lookaside entries
526	* like in we do for I/O ports and MMIO in IOM.
527	*
528	* The simplified flow of a PGMPhysRead/Write function:
529	* -# Enter the PGM critsect.
530	* -# Lookup GCPhys in the ram ranges and get the Page ID.
531	* -# Calc the Allocation Chunk ID from the Page ID.
532	* -# Check the lookaside entries and then the AVL tree for the Chunk ID.
533	* If not found in cache:
534	* -# Call ring-0 and request it to be mapped and supply
535	* a chunk to be unmapped if the cache is maxed out already.
536	* -# Insert the new mapping into the AVL tree (id + R3 address).
537	* -# Update the relevant lookaside entry and return the mapping address.
538	* -# Do the read/write according to monitoring flags and everything.
539	* -# Leave the critsect.
540	*
541	*
542	* @section sec_pgmPhys_Fallback Fallback
543	*
544	* Current all the "second tier" hosts will not support the RTR0MemObjAllocPhysNC
545	* API and thus require a fallback.
546	*
547	* So, when RTR0MemObjAllocPhysNC returns VERR_NOT_SUPPORTED the page allocator
548	* will return to the ring-3 caller (and later ring-0) and asking it to seed
549	* the page allocator with some fresh pages (VERR_GMM_SEED_ME). Ring-3 will
550	* then perform an SUPPageAlloc(cbChunk >> PAGE_SHIFT) call and make a
551	* "SeededAllocPages" call to ring-0.
552	*
553	* The first time ring-0 sees the VERR_NOT_SUPPORTED failure it will disable
554	* all page sharing (zero page detection will continue). It will also force
555	* all allocations to come from the VM which seeded the page. Both these
556	* measures are taken to make sure that there will never be any need for
557	* mapping anything into ring-3 - everything will be mapped already.
558	*
559	* Whether we'll continue to use the current MM locked memory management
560	* for this I don't quite know (I'd prefer not to and just ditch that all
561	* togther), we'll see what's simplest to do.
562	*
563	*
564	*
565	* @section sec_pgmPhys_Changes Changes
566	*
567	* Breakdown of the changes involved?
568	*/
569
570
571	/** Saved state data unit version. */
572	#define PGM_SAVED_STATE_VERSION 6
573
574	/*******************************************************************************
575	* Header Files *
576	*******************************************************************************/
577	#define LOG_GROUP LOG_GROUP_PGM
578	#include <VBox/dbgf.h>
579	#include <VBox/pgm.h>
580	#include <VBox/cpum.h>
581	#include <VBox/iom.h>
582	#include <VBox/sup.h>
583	#include <VBox/mm.h>
584	#include <VBox/em.h>
585	#include <VBox/stam.h>
586	#include <VBox/rem.h>
587	#include <VBox/dbgf.h>
588	#include <VBox/rem.h>
589	#include <VBox/selm.h>
590	#include <VBox/ssm.h>
591	#include "PGMInternal.h"
592	#include <VBox/vm.h>
593	#include <VBox/dbg.h>
594	#include <VBox/hwaccm.h>
595
596	#include <iprt/assert.h>
597	#include <iprt/alloc.h>
598	#include <iprt/asm.h>
599	#include <iprt/thread.h>
600	#include <iprt/string.h>
601	#include <VBox/param.h>
602	#include <VBox/err.h>
603
604
605
606	/*******************************************************************************
607	* Internal Functions *
608	*******************************************************************************/
609	static int pgmR3InitPaging(PVM pVM);
610	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
611	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
612	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
613	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser);
614	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
615	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
616	#ifdef VBOX_STRICT
617	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser);
618	#endif
619	static DECLCALLBACK(int) pgmR3Save(PVM pVM, PSSMHANDLE pSSM);
620	static DECLCALLBACK(int) pgmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version);
621	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0);
622	static void pgmR3ModeDataSwitch(PVM pVM, PGMMODE enmShw, PGMMODE enmGst);
623	static PGMMODE pgmR3CalcShadowMode(PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher);
624
625	#ifdef VBOX_WITH_STATISTICS
626	static void pgmR3InitStats(PVM pVM);
627	#endif
628
629	#ifdef VBOX_WITH_DEBUGGER
630	/** @todo all but the two last commands must be converted to 'info'. */
631	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
632	static DECLCALLBACK(int) pgmR3CmdMap(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
633	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
634	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
635	#endif
636
637
638	/*******************************************************************************
639	* Global Variables *
640	*******************************************************************************/
641	#ifdef VBOX_WITH_DEBUGGER
642	/** Command descriptors. */
643	static const DBGCCMD g_aCmds[] =
644	{
645	/* pszCmd, cArgsMin, cArgsMax, paArgDesc, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
646	{ "pgmram", 0, 0, NULL, 0, NULL, 0, pgmR3CmdRam, "", "Display the ram ranges." },
647	{ "pgmmap", 0, 0, NULL, 0, NULL, 0, pgmR3CmdMap, "", "Display the mapping ranges." },
648	{ "pgmsync", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSync, "", "Sync the CR3 page." },
649	{ "pgmsyncalways", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSyncAlways, "", "Toggle permanent CR3 syncing." },
650	};
651	#endif
652
653
654
655
656	#if 1/// @todo ndef RT_ARCH_AMD64
657	/*
658	* Shadow - 32-bit mode
659	*/
660	#define PGM_SHW_TYPE PGM_TYPE_32BIT
661	#define PGM_SHW_NAME(name) PGM_SHW_NAME_32BIT(name)
662	#define PGM_SHW_NAME_GC_STR(name) PGM_SHW_NAME_GC_32BIT_STR(name)
663	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_32BIT_STR(name)
664	#include "PGMShw.h"
665
666	/* Guest - real mode */
667	#define PGM_GST_TYPE PGM_TYPE_REAL
668	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
669	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_REAL_STR(name)
670	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
671	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_REAL(name)
672	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_32BIT_REAL_STR(name)
673	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_REAL_STR(name)
674	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
675	#include "PGMGst.h"
676	#include "PGMBth.h"
677	#undef BTH_PGMPOOLKIND_PT_FOR_PT
678	#undef PGM_BTH_NAME
679	#undef PGM_BTH_NAME_GC_STR
680	#undef PGM_BTH_NAME_R0_STR
681	#undef PGM_GST_TYPE
682	#undef PGM_GST_NAME
683	#undef PGM_GST_NAME_GC_STR
684	#undef PGM_GST_NAME_R0_STR
685
686	/* Guest - protected mode */
687	#define PGM_GST_TYPE PGM_TYPE_PROT
688	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
689	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_PROT_STR(name)
690	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
691	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_PROT(name)
692	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_32BIT_PROT_STR(name)
693	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_PROT_STR(name)
694	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
695	#include "PGMGst.h"
696	#include "PGMBth.h"
697	#undef BTH_PGMPOOLKIND_PT_FOR_PT
698	#undef PGM_BTH_NAME
699	#undef PGM_BTH_NAME_GC_STR
700	#undef PGM_BTH_NAME_R0_STR
701	#undef PGM_GST_TYPE
702	#undef PGM_GST_NAME
703	#undef PGM_GST_NAME_GC_STR
704	#undef PGM_GST_NAME_R0_STR
705
706	/* Guest - 32-bit mode */
707	#define PGM_GST_TYPE PGM_TYPE_32BIT
708	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
709	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_32BIT_STR(name)
710	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
711	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_32BIT(name)
712	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_32BIT_32BIT_STR(name)
713	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_32BIT_STR(name)
714	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT
715	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB
716	#include "PGMGst.h"
717	#include "PGMBth.h"
718	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
719	#undef BTH_PGMPOOLKIND_PT_FOR_PT
720	#undef PGM_BTH_NAME
721	#undef PGM_BTH_NAME_GC_STR
722	#undef PGM_BTH_NAME_R0_STR
723	#undef PGM_GST_TYPE
724	#undef PGM_GST_NAME
725	#undef PGM_GST_NAME_GC_STR
726	#undef PGM_GST_NAME_R0_STR
727
728	#undef PGM_SHW_TYPE
729	#undef PGM_SHW_NAME
730	#undef PGM_SHW_NAME_GC_STR
731	#undef PGM_SHW_NAME_R0_STR
732	#endif /* !RT_ARCH_AMD64 */
733
734
735	/*
736	* Shadow - PAE mode
737	*/
738	#define PGM_SHW_TYPE PGM_TYPE_PAE
739	#define PGM_SHW_NAME(name) PGM_SHW_NAME_PAE(name)
740	#define PGM_SHW_NAME_GC_STR(name) PGM_SHW_NAME_GC_PAE_STR(name)
741	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_PAE_STR(name)
742	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
743	#include "PGMShw.h"
744
745	/* Guest - real mode */
746	#define PGM_GST_TYPE PGM_TYPE_REAL
747	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
748	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_REAL_STR(name)
749	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
750	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
751	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_PAE_REAL_STR(name)
752	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_REAL_STR(name)
753	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
754	#include "PGMBth.h"
755	#undef BTH_PGMPOOLKIND_PT_FOR_PT
756	#undef PGM_BTH_NAME
757	#undef PGM_BTH_NAME_GC_STR
758	#undef PGM_BTH_NAME_R0_STR
759	#undef PGM_GST_TYPE
760	#undef PGM_GST_NAME
761	#undef PGM_GST_NAME_GC_STR
762	#undef PGM_GST_NAME_R0_STR
763
764	/* Guest - protected mode */
765	#define PGM_GST_TYPE PGM_TYPE_PROT
766	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
767	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_PROT_STR(name)
768	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
769	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PROT(name)
770	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_PAE_PROT_STR(name)
771	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PROT_STR(name)
772	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
773	#include "PGMBth.h"
774	#undef BTH_PGMPOOLKIND_PT_FOR_PT
775	#undef PGM_BTH_NAME
776	#undef PGM_BTH_NAME_GC_STR
777	#undef PGM_BTH_NAME_R0_STR
778	#undef PGM_GST_TYPE
779	#undef PGM_GST_NAME
780	#undef PGM_GST_NAME_GC_STR
781	#undef PGM_GST_NAME_R0_STR
782
783	/* Guest - 32-bit mode */
784	#define PGM_GST_TYPE PGM_TYPE_32BIT
785	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
786	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_32BIT_STR(name)
787	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
788	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_32BIT(name)
789	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_PAE_32BIT_STR(name)
790	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_32BIT_STR(name)
791	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
792	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
793	#include "PGMBth.h"
794	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
795	#undef BTH_PGMPOOLKIND_PT_FOR_PT
796	#undef PGM_BTH_NAME
797	#undef PGM_BTH_NAME_GC_STR
798	#undef PGM_BTH_NAME_R0_STR
799	#undef PGM_GST_TYPE
800	#undef PGM_GST_NAME
801	#undef PGM_GST_NAME_GC_STR
802	#undef PGM_GST_NAME_R0_STR
803
804	/* Guest - PAE mode */
805	#define PGM_GST_TYPE PGM_TYPE_PAE
806	#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
807	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_PAE_STR(name)
808	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
809	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PAE(name)
810	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_PAE_PAE_STR(name)
811	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PAE_STR(name)
812	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
813	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
814	#include "PGMGst.h"
815	#include "PGMBth.h"
816	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
817	#undef BTH_PGMPOOLKIND_PT_FOR_PT
818	#undef PGM_BTH_NAME
819	#undef PGM_BTH_NAME_GC_STR
820	#undef PGM_BTH_NAME_R0_STR
821	#undef PGM_GST_TYPE
822	#undef PGM_GST_NAME
823	#undef PGM_GST_NAME_GC_STR
824	#undef PGM_GST_NAME_R0_STR
825
826	#undef PGM_SHW_TYPE
827	#undef PGM_SHW_NAME
828	#undef PGM_SHW_NAME_GC_STR
829	#undef PGM_SHW_NAME_R0_STR
830
831
832	/*
833	* Shadow - AMD64 mode
834	*/
835	#define PGM_SHW_TYPE PGM_TYPE_AMD64
836	#define PGM_SHW_NAME(name) PGM_SHW_NAME_AMD64(name)
837	#define PGM_SHW_NAME_GC_STR(name) PGM_SHW_NAME_GC_AMD64_STR(name)
838	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_AMD64_STR(name)
839	#include "PGMShw.h"
840
841	/* Guest - AMD64 mode */
842	#define PGM_GST_TYPE PGM_TYPE_AMD64
843	#define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
844	#define PGM_GST_NAME_GC_STR(name) PGM_GST_NAME_GC_AMD64_STR(name)
845	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
846	#define PGM_BTH_NAME(name) PGM_BTH_NAME_AMD64_AMD64(name)
847	#define PGM_BTH_NAME_GC_STR(name) PGM_BTH_NAME_GC_AMD64_AMD64_STR(name)
848	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_AMD64_AMD64_STR(name)
849	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
850	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
851	#include "PGMGst.h"
852	#include "PGMBth.h"
853	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
854	#undef BTH_PGMPOOLKIND_PT_FOR_PT
855	#undef PGM_BTH_NAME
856	#undef PGM_BTH_NAME_GC_STR
857	#undef PGM_BTH_NAME_R0_STR
858	#undef PGM_GST_TYPE
859	#undef PGM_GST_NAME
860	#undef PGM_GST_NAME_GC_STR
861	#undef PGM_GST_NAME_R0_STR
862
863	#undef PGM_SHW_TYPE
864	#undef PGM_SHW_NAME
865	#undef PGM_SHW_NAME_GC_STR
866	#undef PGM_SHW_NAME_R0_STR
867
868
869	/**
870	* Initiates the paging of VM.
871	*
872	* @returns VBox status code.
873	* @param pVM Pointer to VM structure.
874	*/
875	PGMR3DECL(int) PGMR3Init(PVM pVM)
876	{
877	LogFlow(("PGMR3Init:\n"));
878
879	/*
880	* Assert alignment and sizes.
881	*/
882	AssertRelease(sizeof(pVM->pgm.s) <= sizeof(pVM->pgm.padding));
883
884	/*
885	* Init the structure.
886	*/
887	pVM->pgm.s.offVM = RT_OFFSETOF(VM, pgm.s);
888	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
889	pVM->pgm.s.enmGuestMode = PGMMODE_INVALID;
890	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
891	pVM->pgm.s.GCPhysCR3 = NIL_RTGCPHYS;
892	pVM->pgm.s.GCPhysGstCR3Monitored = NIL_RTGCPHYS;
893	pVM->pgm.s.fA20Enabled = true;
894	pVM->pgm.s.pGstPaePDPTHC = NULL;
895	pVM->pgm.s.pGstPaePDPTGC = 0;
896	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apGstPaePDsHC); i++)
897	{
898	pVM->pgm.s.apGstPaePDsHC[i] = NULL;
899	pVM->pgm.s.apGstPaePDsGC[i] = 0;
900	pVM->pgm.s.aGCPhysGstPaePDs[i] = NIL_RTGCPHYS;
901	pVM->pgm.s.aGCPhysGstPaePDsMonitored[i] = NIL_RTGCPHYS;
902	}
903
904	#ifdef VBOX_STRICT
905	VMR3AtStateRegister(pVM, pgmR3ResetNoMorePhysWritesFlag, NULL);
906	#endif
907
908	/*
909	* Get the configured RAM size - to estimate saved state size.
910	*/
911	uint64_t cbRam;
912	int rc = CFGMR3QueryU64(CFGMR3GetRoot(pVM), "RamSize", &cbRam);
913	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
914	cbRam = pVM->pgm.s.cbRamSize = 0;
915	else if (VBOX_SUCCESS(rc))
916	{
917	if (cbRam < PAGE_SIZE)
918	cbRam = 0;
919	cbRam = RT_ALIGN_64(cbRam, PAGE_SIZE);
920	pVM->pgm.s.cbRamSize = (RTUINT)cbRam;
921	}
922	else
923	{
924	AssertMsgFailed(("Configuration error: Failed to query integer \"RamSize\", rc=%Vrc.\n", rc));
925	return rc;
926	}
927
928	/*
929	* Register saved state data unit.
930	*/
931	rc = SSMR3RegisterInternal(pVM, "pgm", 1, PGM_SAVED_STATE_VERSION, (size_t)cbRam + sizeof(PGM),
932	NULL, pgmR3Save, NULL,
933	NULL, pgmR3Load, NULL);
934	if (VBOX_FAILURE(rc))
935	return rc;
936
937	/*
938	* Initialize the PGM critical section and flush the phys TLBs
939	*/
940	rc = PDMR3CritSectInit(pVM, &pVM->pgm.s.CritSect, "PGM");
941	AssertRCReturn(rc, rc);
942
943	PGMR3PhysChunkInvalidateTLB(pVM);
944	PGMPhysInvalidatePageR3MapTLB(pVM);
945	PGMPhysInvalidatePageR0MapTLB(pVM);
946	PGMPhysInvalidatePageGCMapTLB(pVM);
947
948	/*
949	* Trees
950	*/
951	rc = MMHyperAlloc(pVM, sizeof(PGMTREES), 0, MM_TAG_PGM, (void **)&pVM->pgm.s.pTreesHC);
952	if (VBOX_SUCCESS(rc))
953	{
954	pVM->pgm.s.pTreesGC = MMHyperHC2GC(pVM, pVM->pgm.s.pTreesHC);
955
956	/*
957	* Alocate the zero page.
958	*/
959	rc = MMHyperAlloc(pVM, PAGE_SIZE, PAGE_SIZE, MM_TAG_PGM, &pVM->pgm.s.pvZeroPgR3);
960	}
961	if (VBOX_SUCCESS(rc))
962	{
963	pVM->pgm.s.pvZeroPgGC = MMHyperR3ToGC(pVM, pVM->pgm.s.pvZeroPgR3);
964	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
965	AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTHCPHYS);
966	pVM->pgm.s.HCPhysZeroPg = MMR3HyperHCVirt2HCPhys(pVM, pVM->pgm.s.pvZeroPgR3);
967	AssertRelease(pVM->pgm.s.HCPhysZeroPg != NIL_RTHCPHYS);
968
969	/*
970	* Init the paging.
971	*/
972	rc = pgmR3InitPaging(pVM);
973	}
974	if (VBOX_SUCCESS(rc))
975	{
976	/*
977	* Init the page pool.
978	*/
979	rc = pgmR3PoolInit(pVM);
980	}
981	if (VBOX_SUCCESS(rc))
982	{
983	/*
984	* Info & statistics
985	*/
986	DBGFR3InfoRegisterInternal(pVM, "mode",
987	"Shows the current paging mode. "
988	"Recognizes 'all', 'guest', 'shadow' and 'host' as arguments, defaulting to 'all' if nothing's given.",
989	pgmR3InfoMode);
990	DBGFR3InfoRegisterInternal(pVM, "pgmcr3",
991	"Dumps all the entries in the top level paging table. No arguments.",
992	pgmR3InfoCr3);
993	DBGFR3InfoRegisterInternal(pVM, "phys",
994	"Dumps all the physical address ranges. No arguments.",
995	pgmR3PhysInfo);
996	DBGFR3InfoRegisterInternal(pVM, "handlers",
997	"Dumps physical, virtual and hyper virtual handlers. "
998	"Pass 'phys', 'virt', 'hyper' as argument if only one kind is wanted."
999	"Add 'nost' if the statistics are unwanted, use together with 'all' or explicit selection.",
1000	pgmR3InfoHandlers);
1001	DBGFR3InfoRegisterInternal(pVM, "mappings",
1002	"Dumps guest mappings.",
1003	pgmR3MapInfo);
1004
1005	STAM_REL_REG(pVM, &pVM->pgm.s.cGuestModeChanges, STAMTYPE_COUNTER, "/PGM/cGuestModeChanges", STAMUNIT_OCCURENCES, "Number of guest mode changes.");
1006	#ifdef VBOX_WITH_STATISTICS
1007	pgmR3InitStats(pVM);
1008	#endif
1009	#ifdef VBOX_WITH_DEBUGGER
1010	/*
1011	* Debugger commands.
1012	*/
1013	static bool fRegisteredCmds = false;
1014	if (!fRegisteredCmds)
1015	{
1016	int rc = DBGCRegisterCommands(&g_aCmds[0], ELEMENTS(g_aCmds));
1017	if (VBOX_SUCCESS(rc))
1018	fRegisteredCmds = true;
1019	}
1020	#endif
1021	return VINF_SUCCESS;
1022	}
1023
1024	/* Almost no cleanup necessary, MM frees all memory. */
1025	PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
1026
1027	return rc;
1028	}
1029
1030
1031	/**
1032	* Init paging.
1033	*
1034	* Since we need to check what mode the host is operating in before we can choose
1035	* the right paging functions for the host we have to delay this until R0 has
1036	* been initialized.
1037	*
1038	* @returns VBox status code.
1039	* @param pVM VM handle.
1040	*/
1041	static int pgmR3InitPaging(PVM pVM)
1042	{
1043	/*
1044	* Force a recalculation of modes and switcher so everyone gets notified.
1045	*/
1046	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
1047	pVM->pgm.s.enmGuestMode = PGMMODE_INVALID;
1048	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
1049
1050	/*
1051	* Allocate static mapping space for whatever the cr3 register
1052	* points to and in the case of PAE mode to the 4 PDs.
1053	*/
1054	int rc = MMR3HyperReserve(pVM, PAGE_SIZE * 5, "CR3 mapping", &pVM->pgm.s.GCPtrCR3Mapping);
1055	if (VBOX_FAILURE(rc))
1056	{
1057	AssertMsgFailed(("Failed to reserve two pages for cr mapping in HMA, rc=%Vrc\n", rc));
1058	return rc;
1059	}
1060	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1061
1062	/*
1063	* Allocate pages for the three possible intermediate contexts
1064	* (AMD64, PAE and plain 32-Bit). We maintain all three contexts
1065	* for the sake of simplicity. The AMD64 uses the PAE for the
1066	* lower levels, making the total number of pages 11 (3 + 7 + 1).
1067	*
1068	* We assume that two page tables will be enought for the core code
1069	* mappings (HC virtual and identity).
1070	*/
1071	pVM->pgm.s.pInterPD = (PX86PD)MMR3PageAllocLow(pVM);
1072	pVM->pgm.s.apInterPTs[0] = (PX86PT)MMR3PageAllocLow(pVM);
1073	pVM->pgm.s.apInterPTs[1] = (PX86PT)MMR3PageAllocLow(pVM);
1074	pVM->pgm.s.apInterPaePTs[0] = (PX86PTPAE)MMR3PageAlloc(pVM);
1075	pVM->pgm.s.apInterPaePTs[1] = (PX86PTPAE)MMR3PageAlloc(pVM);
1076	pVM->pgm.s.apInterPaePDs[0] = (PX86PDPAE)MMR3PageAlloc(pVM);
1077	pVM->pgm.s.apInterPaePDs[1] = (PX86PDPAE)MMR3PageAlloc(pVM);
1078	pVM->pgm.s.apInterPaePDs[2] = (PX86PDPAE)MMR3PageAlloc(pVM);
1079	pVM->pgm.s.apInterPaePDs[3] = (PX86PDPAE)MMR3PageAlloc(pVM);
1080	pVM->pgm.s.pInterPaePDPT = (PX86PDPT)MMR3PageAllocLow(pVM);
1081	pVM->pgm.s.pInterPaePDPT64 = (PX86PDPT)MMR3PageAllocLow(pVM);
1082	pVM->pgm.s.pInterPaePML4 = (PX86PML4)MMR3PageAllocLow(pVM);
1083	if ( !pVM->pgm.s.pInterPD
1084	\|\| !pVM->pgm.s.apInterPTs[0]
1085	\|\| !pVM->pgm.s.apInterPTs[1]
1086	\|\| !pVM->pgm.s.apInterPaePTs[0]
1087	\|\| !pVM->pgm.s.apInterPaePTs[1]
1088	\|\| !pVM->pgm.s.apInterPaePDs[0]
1089	\|\| !pVM->pgm.s.apInterPaePDs[1]
1090	\|\| !pVM->pgm.s.apInterPaePDs[2]
1091	\|\| !pVM->pgm.s.apInterPaePDs[3]
1092	\|\| !pVM->pgm.s.pInterPaePDPT
1093	\|\| !pVM->pgm.s.pInterPaePDPT64
1094	\|\| !pVM->pgm.s.pInterPaePML4)
1095	{
1096	AssertMsgFailed(("Failed to allocate pages for the intermediate context!\n"));
1097	return VERR_NO_PAGE_MEMORY;
1098	}
1099
1100	pVM->pgm.s.HCPhysInterPD = MMPage2Phys(pVM, pVM->pgm.s.pInterPD);
1101	AssertRelease(pVM->pgm.s.HCPhysInterPD != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPD & PAGE_OFFSET_MASK));
1102	pVM->pgm.s.HCPhysInterPaePDPT = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT);
1103	AssertRelease(pVM->pgm.s.HCPhysInterPaePDPT != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePDPT & PAGE_OFFSET_MASK));
1104	pVM->pgm.s.HCPhysInterPaePML4 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePML4);
1105	AssertRelease(pVM->pgm.s.HCPhysInterPaePML4 != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePML4 & PAGE_OFFSET_MASK));
1106
1107	/*
1108	* Initialize the pages, setting up the PML4 and PDPT for repetitive 4GB action.
1109	*/
1110	ASMMemZeroPage(pVM->pgm.s.pInterPD);
1111	ASMMemZeroPage(pVM->pgm.s.apInterPTs[0]);
1112	ASMMemZeroPage(pVM->pgm.s.apInterPTs[1]);
1113
1114	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[0]);
1115	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[1]);
1116
1117	ASMMemZeroPage(pVM->pgm.s.pInterPaePDPT);
1118	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apInterPaePDs); i++)
1119	{
1120	ASMMemZeroPage(pVM->pgm.s.apInterPaePDs[i]);
1121	pVM->pgm.s.pInterPaePDPT->a[i].u = X86_PDPE_P \| PGM_PLXFLAGS_PERMANENT
1122	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[i]);
1123	}
1124
1125	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.pInterPaePDPT64->a); i++)
1126	{
1127	const unsigned iPD = i % ELEMENTS(pVM->pgm.s.apInterPaePDs);
1128	pVM->pgm.s.pInterPaePDPT64->a[i].u = X86_PDPE_P \| X86_PDPE_RW \| X86_PDPE_US \| X86_PDPE_A \| PGM_PLXFLAGS_PERMANENT
1129	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[iPD]);
1130	}
1131
1132	RTHCPHYS HCPhysInterPaePDPT64 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64);
1133	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.pInterPaePML4->a); i++)
1134	pVM->pgm.s.pInterPaePML4->a[i].u = X86_PML4E_P \| X86_PML4E_RW \| X86_PML4E_US \| X86_PML4E_A \| PGM_PLXFLAGS_PERMANENT
1135	\| HCPhysInterPaePDPT64;
1136
1137	/*
1138	* Allocate pages for the three possible guest contexts (AMD64, PAE and plain 32-Bit).
1139	* We allocate pages for all three posibilities to in order to simplify mappings and
1140	* avoid resource failure during mode switches. So, we need to cover all levels of the
1141	* of the first 4GB down to PD level.
1142	* As with the intermediate context, AMD64 uses the PAE PDPT and PDs.
1143	*/
1144	pVM->pgm.s.pHC32BitPD = (PX86PD)MMR3PageAllocLow(pVM);
1145	pVM->pgm.s.apHCPaePDs[0] = (PX86PDPAE)MMR3PageAlloc(pVM);
1146	pVM->pgm.s.apHCPaePDs[1] = (PX86PDPAE)MMR3PageAlloc(pVM);
1147	AssertRelease((uintptr_t)pVM->pgm.s.apHCPaePDs[0] + PAGE_SIZE == (uintptr_t)pVM->pgm.s.apHCPaePDs[1]);
1148	pVM->pgm.s.apHCPaePDs[2] = (PX86PDPAE)MMR3PageAlloc(pVM);
1149	AssertRelease((uintptr_t)pVM->pgm.s.apHCPaePDs[1] + PAGE_SIZE == (uintptr_t)pVM->pgm.s.apHCPaePDs[2]);
1150	pVM->pgm.s.apHCPaePDs[3] = (PX86PDPAE)MMR3PageAlloc(pVM);
1151	AssertRelease((uintptr_t)pVM->pgm.s.apHCPaePDs[2] + PAGE_SIZE == (uintptr_t)pVM->pgm.s.apHCPaePDs[3]);
1152	pVM->pgm.s.pHCPaePDPT = (PX86PDPT)MMR3PageAllocLow(pVM);
1153	pVM->pgm.s.pHCPaePML4 = (PX86PML4)MMR3PageAllocLow(pVM);
1154	if ( !pVM->pgm.s.pHC32BitPD
1155	\|\| !pVM->pgm.s.apHCPaePDs[0]
1156	\|\| !pVM->pgm.s.apHCPaePDs[1]
1157	\|\| !pVM->pgm.s.apHCPaePDs[2]
1158	\|\| !pVM->pgm.s.apHCPaePDs[3]
1159	\|\| !pVM->pgm.s.pHCPaePDPT
1160	\|\| !pVM->pgm.s.pHCPaePML4)
1161	{
1162	AssertMsgFailed(("Failed to allocate pages for the intermediate context!\n"));
1163	return VERR_NO_PAGE_MEMORY;
1164	}
1165
1166	/* get physical addresses. */
1167	pVM->pgm.s.HCPhys32BitPD = MMPage2Phys(pVM, pVM->pgm.s.pHC32BitPD);
1168	Assert(MMPagePhys2Page(pVM, pVM->pgm.s.HCPhys32BitPD) == pVM->pgm.s.pHC32BitPD);
1169	pVM->pgm.s.aHCPhysPaePDs[0] = MMPage2Phys(pVM, pVM->pgm.s.apHCPaePDs[0]);
1170	pVM->pgm.s.aHCPhysPaePDs[1] = MMPage2Phys(pVM, pVM->pgm.s.apHCPaePDs[1]);
1171	pVM->pgm.s.aHCPhysPaePDs[2] = MMPage2Phys(pVM, pVM->pgm.s.apHCPaePDs[2]);
1172	pVM->pgm.s.aHCPhysPaePDs[3] = MMPage2Phys(pVM, pVM->pgm.s.apHCPaePDs[3]);
1173	pVM->pgm.s.HCPhysPaePDPT = MMPage2Phys(pVM, pVM->pgm.s.pHCPaePDPT);
1174	pVM->pgm.s.HCPhysPaePML4 = MMPage2Phys(pVM, pVM->pgm.s.pHCPaePML4);
1175
1176	/*
1177	* Initialize the pages, setting up the PML4 and PDPT for action below 4GB.
1178	*/
1179	ASMMemZero32(pVM->pgm.s.pHC32BitPD, PAGE_SIZE);
1180
1181	ASMMemZero32(pVM->pgm.s.pHCPaePDPT, PAGE_SIZE);
1182	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apHCPaePDs); i++)
1183	{
1184	ASMMemZero32(pVM->pgm.s.apHCPaePDs[i], PAGE_SIZE);
1185	pVM->pgm.s.pHCPaePDPT->a[i].u = X86_PDPE_P \| PGM_PLXFLAGS_PERMANENT \| pVM->pgm.s.aHCPhysPaePDs[i];
1186	/* The flags will be corrected when entering and leaving long mode. */
1187	}
1188
1189	ASMMemZero32(pVM->pgm.s.pHCPaePML4, PAGE_SIZE);
1190	pVM->pgm.s.pHCPaePML4->a[0].u = X86_PML4E_P \| X86_PML4E_RW \| X86_PML4E_A
1191	\| PGM_PLXFLAGS_PERMANENT \| pVM->pgm.s.HCPhysPaePDPT;
1192
1193	CPUMSetHyperCR3(pVM, (uint32_t)pVM->pgm.s.HCPhys32BitPD);
1194
1195	/*
1196	* Initialize paging workers and mode from current host mode
1197	* and the guest running in real mode.
1198	*/
1199	pVM->pgm.s.enmHostMode = SUPGetPagingMode();
1200	switch (pVM->pgm.s.enmHostMode)
1201	{
1202	case SUPPAGINGMODE_32_BIT:
1203	case SUPPAGINGMODE_32_BIT_GLOBAL:
1204	case SUPPAGINGMODE_PAE:
1205	case SUPPAGINGMODE_PAE_GLOBAL:
1206	case SUPPAGINGMODE_PAE_NX:
1207	case SUPPAGINGMODE_PAE_GLOBAL_NX:
1208	break;
1209
1210	case SUPPAGINGMODE_AMD64:
1211	case SUPPAGINGMODE_AMD64_GLOBAL:
1212	case SUPPAGINGMODE_AMD64_NX:
1213	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
1214	#ifndef VBOX_WITH_HYBIRD_32BIT_KERNEL
1215	if (ARCH_BITS != 64)
1216	{
1217	AssertMsgFailed(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1218	LogRel(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1219	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1220	}
1221	#endif
1222	break;
1223	default:
1224	AssertMsgFailed(("Host mode %d is not supported\n", pVM->pgm.s.enmHostMode));
1225	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1226	}
1227	rc = pgmR3ModeDataInit(pVM, false /* don't resolve GC and R0 syms yet */);
1228	if (VBOX_SUCCESS(rc))
1229	rc = pgmR3ChangeMode(pVM, PGMMODE_REAL);
1230	if (VBOX_SUCCESS(rc))
1231	{
1232	LogFlow(("pgmR3InitPaging: returns successfully\n"));
1233	#if HC_ARCH_BITS == 64
1234	LogRel(("Debug: HCPhys32BitPD=%VHp aHCPhysPaePDs={%VHp,%VHp,%VHp,%VHp} HCPhysPaePDPT=%VHp HCPhysPaePML4=%VHp\n",
1235	pVM->pgm.s.HCPhys32BitPD, pVM->pgm.s.aHCPhysPaePDs[0], pVM->pgm.s.aHCPhysPaePDs[1], pVM->pgm.s.aHCPhysPaePDs[2], pVM->pgm.s.aHCPhysPaePDs[3],
1236	pVM->pgm.s.HCPhysPaePDPT, pVM->pgm.s.HCPhysPaePML4));
1237	LogRel(("Debug: HCPhysInterPD=%VHp HCPhysInterPaePDPT=%VHp HCPhysInterPaePML4=%VHp\n",
1238	pVM->pgm.s.HCPhysInterPD, pVM->pgm.s.HCPhysInterPaePDPT, pVM->pgm.s.HCPhysInterPaePML4));
1239	LogRel(("Debug: apInterPTs={%VHp,%VHp} apInterPaePTs={%VHp,%VHp} apInterPaePDs={%VHp,%VHp,%VHp,%VHp} pInterPaePDPT64=%VHp\n",
1240	MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[1]),
1241	MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[1]),
1242	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]),
1243	MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64)));
1244	#endif
1245
1246	return VINF_SUCCESS;
1247	}
1248
1249	LogFlow(("pgmR3InitPaging: returns %Vrc\n", rc));
1250	return rc;
1251	}
1252
1253
1254	#ifdef VBOX_WITH_STATISTICS
1255	/**
1256	* Init statistics
1257	*/
1258	static void pgmR3InitStats(PVM pVM)
1259	{
1260	PPGM pPGM = &pVM->pgm.s;
1261	STAM_REG(pVM, &pPGM->StatGCInvalidatePage, STAMTYPE_PROFILE, "/PGM/GC/InvalidatePage", STAMUNIT_TICKS_PER_CALL, "PGMGCInvalidatePage() profiling.");
1262	STAM_REG(pVM, &pPGM->StatGCInvalidatePage4KBPages, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/4KBPages", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for a 4KB page.");
1263	STAM_REG(pVM, &pPGM->StatGCInvalidatePage4MBPages, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/4MBPages", STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() was called for a 4MB page.");
1264	STAM_REG(pVM, &pPGM->StatGCInvalidatePage4MBPagesSkip, STAMTYPE_COUNTER, "/PGM/GC/InvalidatePage/4MBPagesSkip",STAMUNIT_OCCURENCES, "The number of times PGMGCInvalidatePage() skipped a 4MB page.");
1265	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).");
1266	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.");
1267	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.");
1268	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.");
1269	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.");
1270	STAM_REG(pVM, &pPGM->StatGCSyncPT, STAMTYPE_PROFILE, "/PGM/GC/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGCSyncPT() body.");
1271	STAM_REG(pVM, &pPGM->StatGCAccessedPage, STAMTYPE_COUNTER, "/PGM/GC/AccessedPage", STAMUNIT_OCCURENCES, "The number of pages marked not present for accessed bit emulation.");
1272	STAM_REG(pVM, &pPGM->StatGCDirtyPage, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/Mark", STAMUNIT_OCCURENCES, "The number of pages marked read-only for dirty bit tracking.");
1273	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.");
1274	STAM_REG(pVM, &pPGM->StatGCDirtyPageTrap, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/Trap", STAMUNIT_OCCURENCES, "The number of traps generated for dirty bit tracking.");
1275	STAM_REG(pVM, &pPGM->StatGCDirtyPageSkipped, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/Skipped", STAMUNIT_OCCURENCES, "The number of pages already dirty or readonly.");
1276	STAM_REG(pVM, &pPGM->StatGCDirtiedPage, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/SetDirty", STAMUNIT_OCCURENCES, "The number of pages marked dirty because of write accesses.");
1277	STAM_REG(pVM, &pPGM->StatGCDirtyTrackRealPF, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/RealPF", STAMUNIT_OCCURENCES, "The number of real pages faults during dirty bit tracking.");
1278	STAM_REG(pVM, &pPGM->StatGCPageAlreadyDirty, STAMTYPE_COUNTER, "/PGM/GC/DirtyPage/AlreadySet", STAMUNIT_OCCURENCES, "The number of pages already marked dirty because of write accesses.");
1279	STAM_REG(pVM, &pPGM->StatGCDirtyBitTracking, STAMTYPE_PROFILE, "/PGM/GC/DirtyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMTrackDirtyBit() body.");
1280	STAM_REG(pVM, &pPGM->StatGCSyncPTAlloc, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/Alloc", STAMUNIT_OCCURENCES, "The number of times PGMGCSyncPT() needed to allocate page tables.");
1281	STAM_REG(pVM, &pPGM->StatGCSyncPTConflict, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/Conflicts", STAMUNIT_OCCURENCES, "The number of times PGMGCSyncPT() detected conflicts.");
1282	STAM_REG(pVM, &pPGM->StatGCSyncPTFailed, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/Failed", STAMUNIT_OCCURENCES, "The number of times PGMGCSyncPT() failed.");
1283
1284	STAM_REG(pVM, &pPGM->StatGCTrap0e, STAMTYPE_PROFILE, "/PGM/GC/Trap0e", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGCTrap0eHandler() body.");
1285	STAM_REG(pVM, &pPGM->StatCheckPageFault, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/CheckPageFault", STAMUNIT_TICKS_PER_CALL, "Profiling of checking for dirty/access emulation faults.");
1286	STAM_REG(pVM, &pPGM->StatLazySyncPT, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of lazy page table syncing.");
1287	STAM_REG(pVM, &pPGM->StatMapping, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/Mapping", STAMUNIT_TICKS_PER_CALL, "Profiling of checking virtual mappings.");
1288	STAM_REG(pVM, &pPGM->StatOutOfSync, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/OutOfSync", STAMUNIT_TICKS_PER_CALL, "Profiling of out of sync page handling.");
1289	STAM_REG(pVM, &pPGM->StatHandlers, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of checking handlers.");
1290	STAM_REG(pVM, &pPGM->StatEIPHandlers, STAMTYPE_PROFILE, "/PGM/GC/Trap0e/Time/EIPHandlers", STAMUNIT_TICKS_PER_CALL, "Profiling of checking eip handlers.");
1291	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.");
1292	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.");
1293	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.");
1294	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.");
1295	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.");
1296	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.");
1297	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.");
1298	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.");
1299	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.");
1300	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.");
1301	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.");
1302	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.");
1303
1304	STAM_REG(pVM, &pPGM->StatTrap0eMapHandler, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/Mapping", STAMUNIT_OCCURENCES, "Number of traps due to access handlers in mappings.");
1305	STAM_REG(pVM, &pPGM->StatHandlersOutOfSync, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/OutOfSync", STAMUNIT_OCCURENCES, "Number of traps due to out-of-sync handled pages.");
1306	STAM_REG(pVM, &pPGM->StatHandlersPhysical, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/Physical", STAMUNIT_OCCURENCES, "Number of traps due to physical access handlers.");
1307	STAM_REG(pVM, &pPGM->StatHandlersVirtual, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/Virtual", STAMUNIT_OCCURENCES, "Number of traps due to virtual access handlers.");
1308	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.");
1309	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).");
1310	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).");
1311	STAM_REG(pVM, &pPGM->StatHandlersInvalid, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Handlers/Invalid", STAMUNIT_OCCURENCES, "Number of traps due to access to invalid physical memory.");
1312
1313	STAM_REG(pVM, &pPGM->StatGCTrap0eConflicts, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Conflicts", STAMUNIT_OCCURENCES, "The number of times #PF was caused by an undetected conflict.");
1314	STAM_REG(pVM, &pPGM->StatGCTrap0eUSNotPresentRead, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/NPRead", STAMUNIT_OCCURENCES, "Number of user mode not present read page faults.");
1315	STAM_REG(pVM, &pPGM->StatGCTrap0eUSNotPresentWrite, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/NPWrite", STAMUNIT_OCCURENCES, "Number of user mode not present write page faults.");
1316	STAM_REG(pVM, &pPGM->StatGCTrap0eUSWrite, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/Write", STAMUNIT_OCCURENCES, "Number of user mode write page faults.");
1317	STAM_REG(pVM, &pPGM->StatGCTrap0eUSReserved, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/Reserved", STAMUNIT_OCCURENCES, "Number of user mode reserved bit page faults.");
1318	STAM_REG(pVM, &pPGM->StatGCTrap0eUSNXE, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/NXE", STAMUNIT_OCCURENCES, "Number of user mode NXE page faults.");
1319	STAM_REG(pVM, &pPGM->StatGCTrap0eUSRead, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/User/Read", STAMUNIT_OCCURENCES, "Number of user mode read page faults.");
1320
1321	STAM_REG(pVM, &pPGM->StatGCTrap0eSVNotPresentRead, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/NPRead", STAMUNIT_OCCURENCES, "Number of supervisor mode not present read page faults.");
1322	STAM_REG(pVM, &pPGM->StatGCTrap0eSVNotPresentWrite, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/NPWrite", STAMUNIT_OCCURENCES, "Number of supervisor mode not present write page faults.");
1323	STAM_REG(pVM, &pPGM->StatGCTrap0eSVWrite, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/Write", STAMUNIT_OCCURENCES, "Number of supervisor mode write page faults.");
1324	STAM_REG(pVM, &pPGM->StatGCTrap0eSVReserved, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/Reserved", STAMUNIT_OCCURENCES, "Number of supervisor mode reserved bit page faults.");
1325	STAM_REG(pVM, &pPGM->StatGCTrap0eSNXE, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/Supervisor/NXE", STAMUNIT_OCCURENCES, "Number of supervisor mode NXE page faults.");
1326	STAM_REG(pVM, &pPGM->StatGCTrap0eUnhandled, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/GuestPF/Unhandled", STAMUNIT_OCCURENCES, "Number of guest real page faults.");
1327	STAM_REG(pVM, &pPGM->StatGCTrap0eMap, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/GuestPF/Map", STAMUNIT_OCCURENCES, "Number of guest page faults due to map accesses.");
1328
1329	STAM_REG(pVM, &pPGM->StatTrap0eWPEmulGC, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/WP/InGC", STAMUNIT_OCCURENCES, "Number of guest page faults due to X86_CR0_WP emulation.");
1330	STAM_REG(pVM, &pPGM->StatTrap0eWPEmulR3, STAMTYPE_COUNTER, "/PGM/GC/Trap0e/WP/ToR3", STAMUNIT_OCCURENCES, "Number of guest page faults due to X86_CR0_WP emulation (forward to R3 for emulation).");
1331
1332	STAM_REG(pVM, &pPGM->StatGCGuestCR3WriteHandled, STAMTYPE_COUNTER, "/PGM/GC/CR3WriteInt", STAMUNIT_OCCURENCES, "The number of times the Guest CR3 change was successfully handled.");
1333	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.");
1334	STAM_REG(pVM, &pPGM->StatGCGuestCR3WriteConflict, STAMTYPE_COUNTER, "/PGM/GC/CR3WriteConflict", STAMUNIT_OCCURENCES, "The number of times the Guest CR3 monitoring detected a conflict.");
1335
1336	STAM_REG(pVM, &pPGM->StatGCPageOutOfSyncSupervisor, STAMTYPE_COUNTER, "/PGM/GC/OutOfSync/SuperVisor", STAMUNIT_OCCURENCES, "Number of traps due to pages out of sync.");
1337	STAM_REG(pVM, &pPGM->StatGCPageOutOfSyncUser, STAMTYPE_COUNTER, "/PGM/GC/OutOfSync/User", STAMUNIT_OCCURENCES, "Number of traps due to pages out of sync.");
1338
1339	STAM_REG(pVM, &pPGM->StatGCGuestROMWriteHandled, STAMTYPE_COUNTER, "/PGM/GC/ROMWriteInt", STAMUNIT_OCCURENCES, "The number of times the Guest ROM change was successfully handled.");
1340	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.");
1341
1342	STAM_REG(pVM, &pPGM->StatDynMapCacheHits, STAMTYPE_COUNTER, "/PGM/GC/DynMapCache/Hits" , STAMUNIT_OCCURENCES, "Number of dynamic page mapping cache hits.");
1343	STAM_REG(pVM, &pPGM->StatDynMapCacheMisses, STAMTYPE_COUNTER, "/PGM/GC/DynMapCache/Misses" , STAMUNIT_OCCURENCES, "Number of dynamic page mapping cache misses.");
1344
1345	STAM_REG(pVM, &pPGM->StatHCDetectedConflicts, STAMTYPE_COUNTER, "/PGM/HC/DetectedConflicts", STAMUNIT_OCCURENCES, "The number of times PGMR3CheckMappingConflicts() detected a conflict.");
1346	STAM_REG(pVM, &pPGM->StatHCGuestPDWrite, STAMTYPE_COUNTER, "/PGM/HC/PDWrite", STAMUNIT_OCCURENCES, "The total number of times pgmHCGuestPDWriteHandler() was called.");
1347	STAM_REG(pVM, &pPGM->StatHCGuestPDWriteConflict, STAMTYPE_COUNTER, "/PGM/HC/PDWriteConflict", STAMUNIT_OCCURENCES, "The number of times pgmHCGuestPDWriteHandler() detected a conflict.");
1348
1349	STAM_REG(pVM, &pPGM->StatHCInvalidatePage, STAMTYPE_PROFILE, "/PGM/HC/InvalidatePage", STAMUNIT_TICKS_PER_CALL, "PGMHCInvalidatePage() profiling.");
1350	STAM_REG(pVM, &pPGM->StatHCInvalidatePage4KBPages, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/4KBPages", STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() was called for a 4KB page.");
1351	STAM_REG(pVM, &pPGM->StatHCInvalidatePage4MBPages, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/4MBPages", STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() was called for a 4MB page.");
1352	STAM_REG(pVM, &pPGM->StatHCInvalidatePage4MBPagesSkip, STAMTYPE_COUNTER, "/PGM/HC/InvalidatePage/4MBPagesSkip",STAMUNIT_OCCURENCES, "The number of times PGMHCInvalidatePage() skipped a 4MB page.");
1353	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).");
1354	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.");
1355	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.");
1356	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.");
1357	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.");
1358	STAM_REG(pVM, &pPGM->StatHCResolveConflict, STAMTYPE_PROFILE, "/PGM/HC/ResolveConflict", STAMUNIT_TICKS_PER_CALL, "pgmR3SyncPTResolveConflict() profiling (includes the entire relocation).");
1359	STAM_REG(pVM, &pPGM->StatHCPrefetch, STAMTYPE_PROFILE, "/PGM/HC/Prefetch", STAMUNIT_TICKS_PER_CALL, "PGMR3PrefetchPage profiling.");
1360
1361	STAM_REG(pVM, &pPGM->StatHCSyncPT, STAMTYPE_PROFILE, "/PGM/HC/SyncPT", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMR3SyncPT() body.");
1362	STAM_REG(pVM, &pPGM->StatHCAccessedPage, STAMTYPE_COUNTER, "/PGM/HC/AccessedPage", STAMUNIT_OCCURENCES, "The number of pages marked not present for accessed bit emulation.");
1363	STAM_REG(pVM, &pPGM->StatHCDirtyPage, STAMTYPE_COUNTER, "/PGM/HC/DirtyPage/Mark", STAMUNIT_OCCURENCES, "The number of pages marked read-only for dirty bit tracking.");
1364	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.");
1365	STAM_REG(pVM, &pPGM->StatHCDirtyPageTrap, STAMTYPE_COUNTER, "/PGM/HC/DirtyPage/Trap", STAMUNIT_OCCURENCES, "The number of traps generated for dirty bit tracking.");
1366	STAM_REG(pVM, &pPGM->StatHCDirtyPageSkipped, STAMTYPE_COUNTER, "/PGM/HC/DirtyPage/Skipped", STAMUNIT_OCCURENCES, "The number of pages already dirty or readonly.");
1367	STAM_REG(pVM, &pPGM->StatHCDirtyBitTracking, STAMTYPE_PROFILE, "/PGM/HC/DirtyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMTrackDirtyBit() body.");
1368
1369	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.");
1370	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.");
1371	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.");
1372	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.");
1373
1374	STAM_REG(pVM, &pPGM->StatFlushTLB, STAMTYPE_PROFILE, "/PGM/FlushTLB", STAMUNIT_OCCURENCES, "Profiling of the PGMFlushTLB() body.");
1375	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)");
1376	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)");
1377	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)");
1378	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)");
1379
1380	STAM_REG(pVM, &pPGM->StatGCSyncCR3, STAMTYPE_PROFILE, "/PGM/GC/SyncCR3", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() body.");
1381	STAM_REG(pVM, &pPGM->StatGCSyncCR3Handlers, STAMTYPE_PROFILE, "/PGM/GC/SyncCR3/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() update handler section.");
1382	STAM_REG(pVM, &pPGM->StatGCSyncCR3HandlerVirtualUpdate, STAMTYPE_PROFILE, "/PGM/GC/SyncCR3/Handlers/VirtualUpdate",STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler updates.");
1383	STAM_REG(pVM, &pPGM->StatGCSyncCR3HandlerVirtualReset, STAMTYPE_PROFILE, "/PGM/GC/SyncCR3/Handlers/VirtualReset", STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler resets.");
1384	STAM_REG(pVM, &pPGM->StatGCSyncCR3Global, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/Global", STAMUNIT_OCCURENCES, "The number of global CR3 syncs.");
1385	STAM_REG(pVM, &pPGM->StatGCSyncCR3NotGlobal, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/NotGlobal", STAMUNIT_OCCURENCES, "The number of non-global CR3 syncs.");
1386	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.");
1387	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.");
1388	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.");
1389	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.");
1390	STAM_REG(pVM, &pPGM->StatGCSyncCR3DstSkippedGlobalPD, STAMTYPE_COUNTER, "/PGM/GC/SyncCR3/DstSkippedGlobalPD", STAMUNIT_OCCURENCES, "The number of times a global page directory wasn't flushed.");
1391	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.");
1392
1393	STAM_REG(pVM, &pPGM->StatHCSyncCR3, STAMTYPE_PROFILE, "/PGM/HC/SyncCR3", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() body.");
1394	STAM_REG(pVM, &pPGM->StatHCSyncCR3Handlers, STAMTYPE_PROFILE, "/PGM/HC/SyncCR3/Handlers", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMSyncCR3() update handler section.");
1395	STAM_REG(pVM, &pPGM->StatHCSyncCR3HandlerVirtualUpdate, STAMTYPE_PROFILE, "/PGM/HC/SyncCR3/Handlers/VirtualUpdate",STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler updates.");
1396	STAM_REG(pVM, &pPGM->StatHCSyncCR3HandlerVirtualReset, STAMTYPE_PROFILE, "/PGM/HC/SyncCR3/Handlers/VirtualReset", STAMUNIT_TICKS_PER_CALL, "Profiling of the virtual handler resets.");
1397	STAM_REG(pVM, &pPGM->StatHCSyncCR3Global, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/Global", STAMUNIT_OCCURENCES, "The number of global CR3 syncs.");
1398	STAM_REG(pVM, &pPGM->StatHCSyncCR3NotGlobal, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/NotGlobal", STAMUNIT_OCCURENCES, "The number of non-global CR3 syncs.");
1399	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.");
1400	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.");
1401	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.");
1402	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.");
1403	STAM_REG(pVM, &pPGM->StatHCSyncCR3DstSkippedGlobalPD, STAMTYPE_COUNTER, "/PGM/HC/SyncCR3/DstSkippedGlobalPD", STAMUNIT_OCCURENCES, "The number of times a global page directory wasn't flushed.");
1404	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.");
1405
1406	STAM_REG(pVM, &pPGM->StatVirtHandleSearchByPhysGC, STAMTYPE_PROFILE, "/PGM/VirtHandler/SearchByPhys/GC", STAMUNIT_TICKS_PER_CALL, "Profiling of pgmHandlerVirtualFindByPhysAddr in GC.");
1407	STAM_REG(pVM, &pPGM->StatVirtHandleSearchByPhysHC, STAMTYPE_PROFILE, "/PGM/VirtHandler/SearchByPhys/HC", STAMUNIT_TICKS_PER_CALL, "Profiling of pgmHandlerVirtualFindByPhysAddr in HC.");
1408	STAM_REG(pVM, &pPGM->StatHandlePhysicalReset, STAMTYPE_COUNTER, "/PGM/HC/HandlerPhysicalReset", STAMUNIT_OCCURENCES, "The number of times PGMR3HandlerPhysicalReset is called.");
1409
1410	STAM_REG(pVM, &pPGM->StatHCGstModifyPage, STAMTYPE_PROFILE, "/PGM/HC/GstModifyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGstModifyPage() body.");
1411	STAM_REG(pVM, &pPGM->StatGCGstModifyPage, STAMTYPE_PROFILE, "/PGM/GC/GstModifyPage", STAMUNIT_TICKS_PER_CALL, "Profiling of the PGMGstModifyPage() body.");
1412
1413	STAM_REG(pVM, &pPGM->StatSynPT4kGC, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/4k", STAMUNIT_OCCURENCES, "Nr of 4k PT syncs");
1414	STAM_REG(pVM, &pPGM->StatSynPT4kHC, STAMTYPE_COUNTER, "/PGM/HC/SyncPT/4k", STAMUNIT_OCCURENCES, "Nr of 4k PT syncs");
1415	STAM_REG(pVM, &pPGM->StatSynPT4MGC, STAMTYPE_COUNTER, "/PGM/GC/SyncPT/4M", STAMUNIT_OCCURENCES, "Nr of 4M PT syncs");
1416	STAM_REG(pVM, &pPGM->StatSynPT4MHC, STAMTYPE_COUNTER, "/PGM/HC/SyncPT/4M", STAMUNIT_OCCURENCES, "Nr of 4M PT syncs");
1417
1418	STAM_REG(pVM, &pPGM->StatDynRamTotal, STAMTYPE_COUNTER, "/PGM/RAM/TotalAlloc", STAMUNIT_MEGABYTES, "Allocated mbs of guest ram.");
1419	STAM_REG(pVM, &pPGM->StatDynRamGrow, STAMTYPE_COUNTER, "/PGM/RAM/Grow", STAMUNIT_OCCURENCES, "Nr of pgmr3PhysGrowRange calls.");
1420
1421	STAM_REG(pVM, &pPGM->StatPageHCMapTlbHits, STAMTYPE_COUNTER, "/PGM/PageHCMap/TlbHits", STAMUNIT_OCCURENCES, "TLB hits.");
1422	STAM_REG(pVM, &pPGM->StatPageHCMapTlbMisses, STAMTYPE_COUNTER, "/PGM/PageHCMap/TlbMisses", STAMUNIT_OCCURENCES, "TLB misses.");
1423	STAM_REG(pVM, &pPGM->ChunkR3Map.c, STAMTYPE_U32, "/PGM/ChunkR3Map/c", STAMUNIT_OCCURENCES, "Number of mapped chunks.");
1424	STAM_REG(pVM, &pPGM->ChunkR3Map.cMax, STAMTYPE_U32, "/PGM/ChunkR3Map/cMax", STAMUNIT_OCCURENCES, "Maximum number of mapped chunks.");
1425	STAM_REG(pVM, &pPGM->StatChunkR3MapTlbHits, STAMTYPE_COUNTER, "/PGM/ChunkR3Map/TlbHits", STAMUNIT_OCCURENCES, "TLB hits.");
1426	STAM_REG(pVM, &pPGM->StatChunkR3MapTlbMisses, STAMTYPE_COUNTER, "/PGM/ChunkR3Map/TlbMisses", STAMUNIT_OCCURENCES, "TLB misses.");
1427	STAM_REG(pVM, &pPGM->StatPageReplaceShared, STAMTYPE_COUNTER, "/PGM/Page/ReplacedShared", STAMUNIT_OCCURENCES, "Times a shared page was replaced.");
1428	STAM_REG(pVM, &pPGM->StatPageReplaceZero, STAMTYPE_COUNTER, "/PGM/Page/ReplacedZero", STAMUNIT_OCCURENCES, "Times the zero page was replaced.");
1429	STAM_REG(pVM, &pPGM->StatPageHandyAllocs, STAMTYPE_COUNTER, "/PGM/Page/HandyAllocs", STAMUNIT_OCCURENCES, "Number of times we've allocated more handy pages.");
1430	STAM_REG(pVM, &pPGM->cAllPages, STAMTYPE_U32, "/PGM/Page/cAllPages", STAMUNIT_OCCURENCES, "The total number of pages.");
1431	STAM_REG(pVM, &pPGM->cPrivatePages, STAMTYPE_U32, "/PGM/Page/cPrivatePages", STAMUNIT_OCCURENCES, "The number of private pages.");
1432	STAM_REG(pVM, &pPGM->cSharedPages, STAMTYPE_U32, "/PGM/Page/cSharedPages", STAMUNIT_OCCURENCES, "The number of shared pages.");
1433	STAM_REG(pVM, &pPGM->cZeroPages, STAMTYPE_U32, "/PGM/Page/cZeroPages", STAMUNIT_OCCURENCES, "The number of zero backed pages.");
1434
1435	#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
1436	STAM_REG(pVM, &pPGM->StatTrackVirgin, STAMTYPE_COUNTER, "/PGM/Track/Virgin", STAMUNIT_OCCURENCES, "The number of first time shadowings");
1437	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.");
1438	STAM_REG(pVM, &pPGM->StatTrackAliasedMany, STAMTYPE_COUNTER, "/PGM/Track/AliasedMany", STAMUNIT_OCCURENCES, "The number of times we're tracking using cRef2.");
1439	STAM_REG(pVM, &pPGM->StatTrackAliasedLots, STAMTYPE_COUNTER, "/PGM/Track/AliasedLots", STAMUNIT_OCCURENCES, "The number of times we're hitting pages which has overflowed cRef2");
1440	STAM_REG(pVM, &pPGM->StatTrackOverflows, STAMTYPE_COUNTER, "/PGM/Track/Overflows", STAMUNIT_OCCURENCES, "The number of times the extent list grows to long.");
1441	STAM_REG(pVM, &pPGM->StatTrackDeref, STAMTYPE_PROFILE, "/PGM/Track/Deref", STAMUNIT_OCCURENCES, "Profiling of SyncPageWorkerTrackDeref (expensive).");
1442	#endif
1443
1444	for (unsigned i = 0; i < X86_PG_ENTRIES; i++)
1445	{
1446	/** @todo r=bird: We need a STAMR3RegisterF()! */
1447	char szName[32];
1448
1449	RTStrPrintf(szName, sizeof(szName), "/PGM/GC/PD/Trap0e/%04X", i);
1450	int rc = STAMR3Register(pVM, &pPGM->StatGCTrap0ePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "The number of traps in page directory n.");
1451	AssertRC(rc);
1452
1453	RTStrPrintf(szName, sizeof(szName), "/PGM/GC/PD/SyncPt/%04X", i);
1454	rc = STAMR3Register(pVM, &pPGM->StatGCSyncPtPD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "The number of syncs per PD n.");
1455	AssertRC(rc);
1456
1457	RTStrPrintf(szName, sizeof(szName), "/PGM/GC/PD/SyncPage/%04X", i);
1458	rc = STAMR3Register(pVM, &pPGM->StatGCSyncPagePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "The number of out of sync pages per page directory n.");
1459	AssertRC(rc);
1460	}
1461	}
1462	#endif /* VBOX_WITH_STATISTICS */
1463
1464	/**
1465	* Init the PGM bits that rely on VMMR0 and MM to be fully initialized.
1466	*
1467	* The dynamic mapping area will also be allocated and initialized at this
1468	* time. We could allocate it during PGMR3Init of course, but the mapping
1469	* wouldn't be allocated at that time preventing us from setting up the
1470	* page table entries with the dummy page.
1471	*
1472	* @returns VBox status code.
1473	* @param pVM VM handle.
1474	*/
1475	PGMR3DECL(int) PGMR3InitDynMap(PVM pVM)
1476	{
1477	/*
1478	* Reserve space for mapping the paging pages into guest context.
1479	*/
1480	int rc = MMR3HyperReserve(pVM, PAGE_SIZE * (2 + ELEMENTS(pVM->pgm.s.apHCPaePDs) + 1 + 2 + 2), "Paging", &pVM->pgm.s.pGC32BitPD);
1481	AssertRCReturn(rc, rc);
1482	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1483
1484	/*
1485	* Reserve space for the dynamic mappings.
1486	*/
1487	/** @todo r=bird: Need to verify that the checks for crossing PTs are correct here. They seems to be assuming 4MB PTs.. */
1488	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping", &pVM->pgm.s.pbDynPageMapBaseGC);
1489	if ( VBOX_SUCCESS(rc)
1490	&& (pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_SHIFT) != ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_SHIFT))
1491	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping not crossing", &pVM->pgm.s.pbDynPageMapBaseGC);
1492	if (VBOX_SUCCESS(rc))
1493	{
1494	AssertRelease((pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_SHIFT) == ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_SHIFT));
1495	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1496	}
1497	return rc;
1498	}
1499
1500
1501	/**
1502	* Ring-3 init finalizing.
1503	*
1504	* @returns VBox status code.
1505	* @param pVM The VM handle.
1506	*/
1507	PGMR3DECL(int) PGMR3InitFinalize(PVM pVM)
1508	{
1509	/*
1510	* Map the paging pages into the guest context.
1511	*/
1512	RTGCPTR GCPtr = pVM->pgm.s.pGC32BitPD;
1513	AssertReleaseReturn(GCPtr, VERR_INTERNAL_ERROR);
1514
1515	int rc = PGMMap(pVM, GCPtr, pVM->pgm.s.HCPhys32BitPD, PAGE_SIZE, 0);
1516	AssertRCReturn(rc, rc);
1517	pVM->pgm.s.pGC32BitPD = GCPtr;
1518	GCPtr += PAGE_SIZE;
1519	GCPtr += PAGE_SIZE; /* reserved page */
1520
1521	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apHCPaePDs); i++)
1522	{
1523	rc = PGMMap(pVM, GCPtr, pVM->pgm.s.aHCPhysPaePDs[i], PAGE_SIZE, 0);
1524	AssertRCReturn(rc, rc);
1525	pVM->pgm.s.apGCPaePDs[i] = GCPtr;
1526	GCPtr += PAGE_SIZE;
1527	}
1528	/* A bit of paranoia is justified. */
1529	AssertRelease((RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[0] + PAGE_SIZE == (RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[1]);
1530	AssertRelease((RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[1] + PAGE_SIZE == (RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[2]);
1531	AssertRelease((RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[2] + PAGE_SIZE == (RTGCUINTPTR)pVM->pgm.s.apGCPaePDs[3]);
1532	GCPtr += PAGE_SIZE; /* reserved page */
1533
1534	rc = PGMMap(pVM, GCPtr, pVM->pgm.s.HCPhysPaePDPT, PAGE_SIZE, 0);
1535	AssertRCReturn(rc, rc);
1536	pVM->pgm.s.pGCPaePDPT = GCPtr;
1537	GCPtr += PAGE_SIZE;
1538	GCPtr += PAGE_SIZE; /* reserved page */
1539
1540
1541	/*
1542	* Reserve space for the dynamic mappings.
1543	* Initialize the dynamic mapping pages with dummy pages to simply the cache.
1544	*/
1545	/* get the pointer to the page table entries. */
1546	PPGMMAPPING pMapping = pgmGetMapping(pVM, pVM->pgm.s.pbDynPageMapBaseGC);
1547	AssertRelease(pMapping);
1548	const uintptr_t off = pVM->pgm.s.pbDynPageMapBaseGC - pMapping->GCPtr;
1549	const unsigned iPT = off >> X86_PD_SHIFT;
1550	const unsigned iPG = (off >> X86_PT_SHIFT) & X86_PT_MASK;
1551	pVM->pgm.s.paDynPageMap32BitPTEsGC = pMapping->aPTs[iPT].pPTGC + iPG * sizeof(pMapping->aPTs[0].pPTR3->a[0]);
1552	pVM->pgm.s.paDynPageMapPaePTEsGC = pMapping->aPTs[iPT].paPaePTsGC + iPG * sizeof(pMapping->aPTs[0].paPaePTsR3->a[0]);
1553
1554	/* init cache */
1555	RTHCPHYS HCPhysDummy = MMR3PageDummyHCPhys(pVM);
1556	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.aHCPhysDynPageMapCache); i++)
1557	pVM->pgm.s.aHCPhysDynPageMapCache[i] = HCPhysDummy;
1558
1559	for (unsigned i = 0; i < MM_HYPER_DYNAMIC_SIZE; i += PAGE_SIZE)
1560	{
1561	rc = PGMMap(pVM, pVM->pgm.s.pbDynPageMapBaseGC + i, HCPhysDummy, PAGE_SIZE, 0);
1562	AssertRCReturn(rc, rc);
1563	}
1564
1565	return rc;
1566	}
1567
1568
1569	/**
1570	* Applies relocations to data and code managed by this
1571	* component. This function will be called at init and
1572	* whenever the VMM need to relocate it self inside the GC.
1573	*
1574	* @param pVM The VM.
1575	* @param offDelta Relocation delta relative to old location.
1576	*/
1577	PGMR3DECL(void) PGMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
1578	{
1579	LogFlow(("PGMR3Relocate\n"));
1580
1581	/*
1582	* Paging stuff.
1583	*/
1584	pVM->pgm.s.GCPtrCR3Mapping += offDelta;
1585	/** @todo move this into shadow and guest specific relocation functions. */
1586	AssertMsg(pVM->pgm.s.pGC32BitPD, ("Init order, no relocation before paging is initialized!\n"));
1587	pVM->pgm.s.pGC32BitPD += offDelta;
1588	pVM->pgm.s.pGuestPDGC += offDelta;
1589	AssertCompile(ELEMENTS(pVM->pgm.s.apGCPaePDs) == ELEMENTS(pVM->pgm.s.apGstPaePDsGC));
1590	for (unsigned i = 0; i < ELEMENTS(pVM->pgm.s.apGCPaePDs); i++)
1591	{
1592	pVM->pgm.s.apGCPaePDs[i] += offDelta;
1593	pVM->pgm.s.apGstPaePDsGC[i] += offDelta;
1594	}
1595	pVM->pgm.s.pGstPaePDPTGC += offDelta;
1596	pVM->pgm.s.pGCPaePDPT += offDelta;
1597
1598	pgmR3ModeDataInit(pVM, true /* resolve GC/R0 symbols */);
1599	pgmR3ModeDataSwitch(pVM, pVM->pgm.s.enmShadowMode, pVM->pgm.s.enmGuestMode);
1600
1601	PGM_SHW_PFN(Relocate, pVM)(pVM, offDelta);
1602	PGM_GST_PFN(Relocate, pVM)(pVM, offDelta);
1603	PGM_BTH_PFN(Relocate, pVM)(pVM, offDelta);
1604
1605	/*
1606	* Trees.
1607	*/
1608	pVM->pgm.s.pTreesGC = MMHyperHC2GC(pVM, pVM->pgm.s.pTreesHC);
1609
1610	/*
1611	* Ram ranges.
1612	*/
1613	if (pVM->pgm.s.pRamRangesR3)
1614	{
1615	pVM->pgm.s.pRamRangesGC = MMHyperHC2GC(pVM, pVM->pgm.s.pRamRangesR3);
1616	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur->pNextR3; pCur = pCur->pNextR3)
1617	#ifdef VBOX_WITH_NEW_PHYS_CODE
1618	pCur->pNextGC = MMHyperR3ToGC(pVM, pCur->pNextR3);
1619	#else
1620	{
1621	pCur->pNextGC = MMHyperR3ToGC(pVM, pCur->pNextR3);
1622	if (pCur->pavHCChunkGC)
1623	pCur->pavHCChunkGC = MMHyperHC2GC(pVM, pCur->pavHCChunkHC);
1624	}
1625	#endif
1626	}
1627
1628	/*
1629	* Update the two page directories with all page table mappings.
1630	* (One or more of them have changed, that's why we're here.)
1631	*/
1632	pVM->pgm.s.pMappingsGC = MMHyperHC2GC(pVM, pVM->pgm.s.pMappingsR3);
1633	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur->pNextR3; pCur = pCur->pNextR3)
1634	pCur->pNextGC = MMHyperHC2GC(pVM, pCur->pNextR3);
1635
1636	/* Relocate GC addresses of Page Tables. */
1637	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
1638	{
1639	for (RTHCUINT i = 0; i < pCur->cPTs; i++)
1640	{
1641	pCur->aPTs[i].pPTGC = MMHyperR3ToGC(pVM, pCur->aPTs[i].pPTR3);
1642	pCur->aPTs[i].paPaePTsGC = MMHyperR3ToGC(pVM, pCur->aPTs[i].paPaePTsR3);
1643	}
1644	}
1645
1646	/*
1647	* Dynamic page mapping area.
1648	*/
1649	pVM->pgm.s.paDynPageMap32BitPTEsGC += offDelta;
1650	pVM->pgm.s.paDynPageMapPaePTEsGC += offDelta;
1651	pVM->pgm.s.pbDynPageMapBaseGC += offDelta;
1652
1653	/*
1654	* The Zero page.
1655	*/
1656	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
1657	AssertRelease(pVM->pgm.s.pvZeroPgR0);
1658
1659	/*
1660	* Physical and virtual handlers.
1661	*/
1662	RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysHandlers, true, pgmR3RelocatePhysHandler, &offDelta);
1663	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesHC->VirtHandlers, true, pgmR3RelocateVirtHandler, &offDelta);
1664	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesHC->HyperVirtHandlers, true, pgmR3RelocateHyperVirtHandler, &offDelta);
1665
1666	/*
1667	* The page pool.
1668	*/
1669	pgmR3PoolRelocate(pVM);
1670	}
1671
1672
1673	/**
1674	* Callback function for relocating a physical access handler.
1675	*
1676	* @returns 0 (continue enum)
1677	* @param pNode Pointer to a PGMPHYSHANDLER node.
1678	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
1679	* not certain the delta will fit in a void pointer for all possible configs.
1680	*/
1681	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser)
1682	{
1683	PPGMPHYSHANDLER pHandler = (PPGMPHYSHANDLER)pNode;
1684	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
1685	if (pHandler->pfnHandlerGC)
1686	pHandler->pfnHandlerGC += offDelta;
1687	if ((RTGCUINTPTR)pHandler->pvUserGC >= 0x10000)
1688	pHandler->pvUserGC += offDelta;
1689	return 0;
1690	}
1691
1692
1693	/**
1694	* Callback function for relocating a virtual access handler.
1695	*
1696	* @returns 0 (continue enum)
1697	* @param pNode Pointer to a PGMVIRTHANDLER node.
1698	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
1699	* not certain the delta will fit in a void pointer for all possible configs.
1700	*/
1701	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
1702	{
1703	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
1704	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
1705	Assert( pHandler->enmType == PGMVIRTHANDLERTYPE_ALL
1706	\|\| pHandler->enmType == PGMVIRTHANDLERTYPE_WRITE);
1707	Assert(pHandler->pfnHandlerGC);
1708	pHandler->pfnHandlerGC += offDelta;
1709	return 0;
1710	}
1711
1712
1713	/**
1714	* Callback function for relocating a virtual access handler for the hypervisor mapping.
1715	*
1716	* @returns 0 (continue enum)
1717	* @param pNode Pointer to a PGMVIRTHANDLER node.
1718	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
1719	* not certain the delta will fit in a void pointer for all possible configs.
1720	*/
1721	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
1722	{
1723	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
1724	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
1725	Assert(pHandler->enmType == PGMVIRTHANDLERTYPE_HYPERVISOR);
1726	Assert(pHandler->pfnHandlerGC);
1727	pHandler->pfnHandlerGC += offDelta;
1728	return 0;
1729	}
1730
1731
1732	/**
1733	* The VM is being reset.
1734	*
1735	* For the PGM component this means that any PD write monitors
1736	* needs to be removed.
1737	*
1738	* @param pVM VM handle.
1739	*/
1740	PGMR3DECL(void) PGMR3Reset(PVM pVM)
1741	{
1742	LogFlow(("PGMR3Reset:\n"));
1743	VM_ASSERT_EMT(pVM);
1744
1745	pgmLock(pVM);
1746
1747	/*
1748	* Unfix any fixed mappings and disable CR3 monitoring.
1749	*/
1750	pVM->pgm.s.fMappingsFixed = false;
1751	pVM->pgm.s.GCPtrMappingFixed = 0;
1752	pVM->pgm.s.cbMappingFixed = 0;
1753
1754	int rc = PGM_GST_PFN(UnmonitorCR3, pVM)(pVM);
1755	AssertRC(rc);
1756	#ifdef DEBUG
1757	DBGFR3InfoLog(pVM, "mappings", NULL);
1758	DBGFR3InfoLog(pVM, "handlers", "all nostat");
1759	#endif
1760
1761	/*
1762	* Reset the shadow page pool.
1763	*/
1764	pgmR3PoolReset(pVM);
1765
1766	/*
1767	* Re-init other members.
1768	*/
1769	pVM->pgm.s.fA20Enabled = true;
1770
1771	/*
1772	* Clear the FFs PGM owns.
1773	*/
1774	VM_FF_CLEAR(pVM, VM_FF_PGM_SYNC_CR3);
1775	VM_FF_CLEAR(pVM, VM_FF_PGM_SYNC_CR3_NON_GLOBAL);
1776
1777	/*
1778	* Reset (zero) RAM pages.
1779	*/
1780	rc = pgmR3PhysRamReset(pVM);
1781	if (RT_SUCCESS(rc))
1782	{
1783	#ifdef VBOX_WITH_NEW_PHYS_CODE
1784	/*
1785	* Reset (zero) shadow ROM pages.
1786	*/
1787	rc = pgmR3PhysRomReset(pVM);
1788	#endif
1789	if (RT_SUCCESS(rc))
1790	{
1791	/*
1792	* Switch mode back to real mode.
1793	*/
1794	rc = pgmR3ChangeMode(pVM, PGMMODE_REAL);
1795	STAM_REL_COUNTER_RESET(&pVM->pgm.s.cGuestModeChanges);
1796	}
1797	}
1798
1799	pgmUnlock(pVM);
1800	//return rc;
1801	AssertReleaseRC(rc);
1802	}
1803
1804
1805	#ifdef VBOX_STRICT
1806	/**
1807	* VM state change callback for clearing fNoMorePhysWrites after
1808	* a snapshot has been created.
1809	*/
1810	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser)
1811	{
1812	if (enmState == VMSTATE_RUNNING)
1813	pVM->pgm.s.fNoMorePhysWrites = false;
1814	}
1815	#endif
1816
1817
1818	/**
1819	* Terminates the PGM.
1820	*
1821	* @returns VBox status code.
1822	* @param pVM Pointer to VM structure.
1823	*/
1824	PGMR3DECL(int) PGMR3Term(PVM pVM)
1825	{
1826	return PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
1827	}
1828
1829
1830	/**
1831	* Execute state save operation.
1832	*
1833	* @returns VBox status code.
1834	* @param pVM VM Handle.
1835	* @param pSSM SSM operation handle.
1836	*/
1837	static DECLCALLBACK(int) pgmR3Save(PVM pVM, PSSMHANDLE pSSM)
1838	{
1839	PPGM pPGM = &pVM->pgm.s;
1840
1841	/* No more writes to physical memory after this point! */
1842	pVM->pgm.s.fNoMorePhysWrites = true;
1843
1844	/*
1845	* Save basic data (required / unaffected by relocation).
1846	*/
1847	#if 1
1848	SSMR3PutBool(pSSM, pPGM->fMappingsFixed);
1849	#else
1850	SSMR3PutUInt(pSSM, pPGM->fMappingsFixed);
1851	#endif
1852	SSMR3PutGCPtr(pSSM, pPGM->GCPtrMappingFixed);
1853	SSMR3PutU32(pSSM, pPGM->cbMappingFixed);
1854	SSMR3PutUInt(pSSM, pPGM->cbRamSize);
1855	SSMR3PutGCPhys(pSSM, pPGM->GCPhysA20Mask);
1856	SSMR3PutUInt(pSSM, pPGM->fA20Enabled);
1857	SSMR3PutUInt(pSSM, pPGM->fSyncFlags);
1858	SSMR3PutUInt(pSSM, pPGM->enmGuestMode);
1859	SSMR3PutU32(pSSM, ~0); /* Separator. */
1860
1861	/*
1862	* The guest mappings.
1863	*/
1864	uint32_t i = 0;
1865	for (PPGMMAPPING pMapping = pPGM->pMappingsR3; pMapping; pMapping = pMapping->pNextR3, i++)
1866	{
1867	SSMR3PutU32(pSSM, i);
1868	SSMR3PutStrZ(pSSM, pMapping->pszDesc); /* This is the best unique id we have... */
1869	SSMR3PutGCPtr(pSSM, pMapping->GCPtr);
1870	SSMR3PutGCUIntPtr(pSSM, pMapping->cPTs);
1871	/* flags are done by the mapping owners! */
1872	}
1873	SSMR3PutU32(pSSM, ~0); /* terminator. */
1874
1875	/*
1876	* Ram range flags and bits.
1877	*/
1878	i = 0;
1879	for (PPGMRAMRANGE pRam = pPGM->pRamRangesR3; pRam; pRam = pRam->pNextR3, i++)
1880	{
1881	/** @todo MMIO ranges may move (PCI reconfig), we currently assume they don't. */
1882
1883	SSMR3PutU32(pSSM, i);
1884	SSMR3PutGCPhys(pSSM, pRam->GCPhys);
1885	SSMR3PutGCPhys(pSSM, pRam->GCPhysLast);
1886	SSMR3PutGCPhys(pSSM, pRam->cb);
1887	SSMR3PutU8(pSSM, !!pRam->pvHC); /* boolean indicating memory or not. */
1888
1889	/* Flags. */
1890	const unsigned cPages = pRam->cb >> PAGE_SHIFT;
1891	for (unsigned iPage = 0; iPage < cPages; iPage++)
1892	SSMR3PutU16(pSSM, (uint16_t)(pRam->aPages[iPage].HCPhys & ~X86_PTE_PAE_PG_MASK)); /** @todo PAGE FLAGS */
1893
1894	/* any memory associated with the range. */
1895	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
1896	{
1897	for (unsigned iChunk = 0; iChunk < (pRam->cb >> PGM_DYNAMIC_CHUNK_SHIFT); iChunk++)
1898	{
1899	if (pRam->pavHCChunkHC[iChunk])
1900	{
1901	SSMR3PutU8(pSSM, 1); /* chunk present */
1902	SSMR3PutMem(pSSM, pRam->pavHCChunkHC[iChunk], PGM_DYNAMIC_CHUNK_SIZE);
1903	}
1904	else
1905	SSMR3PutU8(pSSM, 0); /* no chunk present */
1906	}
1907	}
1908	else if (pRam->pvHC)
1909	{
1910	int rc = SSMR3PutMem(pSSM, pRam->pvHC, pRam->cb);
1911	if (VBOX_FAILURE(rc))
1912	{
1913	Log(("pgmR3Save: SSMR3PutMem(, %p, %#x) -> %Vrc\n", pRam->pvHC, pRam->cb, rc));
1914	return rc;
1915	}
1916	}
1917	}
1918	return SSMR3PutU32(pSSM, ~0); /* terminator. */
1919	}
1920
1921
1922	/**
1923	* Execute state load operation.
1924	*
1925	* @returns VBox status code.
1926	* @param pVM VM Handle.
1927	* @param pSSM SSM operation handle.
1928	* @param u32Version Data layout version.
1929	*/
1930	static DECLCALLBACK(int) pgmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
1931	{
1932	/*
1933	* Validate version.
1934	*/
1935	if (u32Version != PGM_SAVED_STATE_VERSION)
1936	{
1937	Log(("pgmR3Load: Invalid version u32Version=%d (current %d)!\n", u32Version, PGM_SAVED_STATE_VERSION));
1938	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1939	}
1940
1941	/*
1942	* Call the reset function to make sure all the memory is cleared.
1943	*/
1944	PGMR3Reset(pVM);
1945
1946	/*
1947	* Load basic data (required / unaffected by relocation).
1948	*/
1949	PPGM pPGM = &pVM->pgm.s;
1950	#if 1
1951	SSMR3GetBool(pSSM, &pPGM->fMappingsFixed);
1952	#else
1953	uint32_t u;
1954	SSMR3GetU32(pSSM, &u);
1955	pPGM->fMappingsFixed = u;
1956	#endif
1957	SSMR3GetGCPtr(pSSM, &pPGM->GCPtrMappingFixed);
1958	SSMR3GetU32(pSSM, &pPGM->cbMappingFixed);
1959
1960	RTUINT cbRamSize;
1961	int rc = SSMR3GetU32(pSSM, &cbRamSize);
1962	if (VBOX_FAILURE(rc))
1963	return rc;
1964	if (cbRamSize != pPGM->cbRamSize)
1965	return VERR_SSM_LOAD_MEMORY_SIZE_MISMATCH;
1966	SSMR3GetGCPhys(pSSM, &pPGM->GCPhysA20Mask);
1967	SSMR3GetUInt(pSSM, &pPGM->fA20Enabled);
1968	SSMR3GetUInt(pSSM, &pPGM->fSyncFlags);
1969	RTUINT uGuestMode;
1970	SSMR3GetUInt(pSSM, &uGuestMode);
1971	pPGM->enmGuestMode = (PGMMODE)uGuestMode;
1972
1973	/* check separator. */
1974	uint32_t u32Sep;
1975	SSMR3GetU32(pSSM, &u32Sep);
1976	if (VBOX_FAILURE(rc))
1977	return rc;
1978	if (u32Sep != (uint32_t)~0)
1979	{
1980	AssertMsgFailed(("u32Sep=%#x (first)\n", u32Sep));
1981	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
1982	}
1983
1984	/*
1985	* The guest mappings.
1986	*/
1987	uint32_t i = 0;
1988	for (;; i++)
1989	{
1990	/* Check the seqence number / separator. */
1991	rc = SSMR3GetU32(pSSM, &u32Sep);
1992	if (VBOX_FAILURE(rc))
1993	return rc;
1994	if (u32Sep == ~0U)
1995	break;
1996	if (u32Sep != i)
1997	{
1998	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
1999	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2000	}
2001
2002	/* get the mapping details. */
2003	char szDesc[256];
2004	szDesc[0] = '\0';
2005	rc = SSMR3GetStrZ(pSSM, szDesc, sizeof(szDesc));
2006	if (VBOX_FAILURE(rc))
2007	return rc;
2008	RTGCPTR GCPtr;
2009	SSMR3GetGCPtr(pSSM, &GCPtr);
2010	RTGCUINTPTR cPTs;
2011	rc = SSMR3GetU32(pSSM, &cPTs);
2012	if (VBOX_FAILURE(rc))
2013	return rc;
2014
2015	/* find matching range. */
2016	PPGMMAPPING pMapping;
2017	for (pMapping = pPGM->pMappingsR3; pMapping; pMapping = pMapping->pNextR3)
2018	if ( pMapping->cPTs == cPTs
2019	&& !strcmp(pMapping->pszDesc, szDesc))
2020	break;
2021	if (!pMapping)
2022	{
2023	LogRel(("Couldn't find mapping: cPTs=%#x szDesc=%s (GCPtr=%VGv)\n",
2024	cPTs, szDesc, GCPtr));
2025	AssertFailed();
2026	return VERR_SSM_LOAD_CONFIG_MISMATCH;
2027	}
2028
2029	/* relocate it. */
2030	if (pMapping->GCPtr != GCPtr)
2031	{
2032	AssertMsg((GCPtr >> X86_PD_SHIFT << X86_PD_SHIFT) == GCPtr, ("GCPtr=%VGv\n", GCPtr));
2033	#if HC_ARCH_BITS == 64
2034	LogRel(("Mapping: %VGv -> %VGv %s\n", pMapping->GCPtr, GCPtr, pMapping->pszDesc));
2035	#endif
2036	pgmR3MapRelocate(pVM, pMapping, pMapping->GCPtr, GCPtr);
2037	}
2038	else
2039	Log(("pgmR3Load: '%s' needed no relocation (%VGv)\n", szDesc, GCPtr));
2040	}
2041
2042	/*
2043	* Ram range flags and bits.
2044	*/
2045	i = 0;
2046	for (PPGMRAMRANGE pRam = pPGM->pRamRangesR3; pRam; pRam = pRam->pNextR3, i++)
2047	{
2048	/** @todo MMIO ranges may move (PCI reconfig), we currently assume they don't. */
2049	/* Check the seqence number / separator. */
2050	rc = SSMR3GetU32(pSSM, &u32Sep);
2051	if (VBOX_FAILURE(rc))
2052	return rc;
2053	if (u32Sep == ~0U)
2054	break;
2055	if (u32Sep != i)
2056	{
2057	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2058	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2059	}
2060
2061	/* Get the range details. */
2062	RTGCPHYS GCPhys;
2063	SSMR3GetGCPhys(pSSM, &GCPhys);
2064	RTGCPHYS GCPhysLast;
2065	SSMR3GetGCPhys(pSSM, &GCPhysLast);
2066	RTGCPHYS cb;
2067	SSMR3GetGCPhys(pSSM, &cb);
2068	uint8_t fHaveBits;
2069	rc = SSMR3GetU8(pSSM, &fHaveBits);
2070	if (VBOX_FAILURE(rc))
2071	return rc;
2072	if (fHaveBits & ~1)
2073	{
2074	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2075	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2076	}
2077
2078	/* Match it up with the current range. */
2079	if ( GCPhys != pRam->GCPhys
2080	\|\| GCPhysLast != pRam->GCPhysLast
2081	\|\| cb != pRam->cb
2082	\|\| fHaveBits != !!pRam->pvHC)
2083	{
2084	LogRel(("Ram range: %VGp-%VGp %VGp bytes %s\n"
2085	"State : %VGp-%VGp %VGp bytes %s\n",
2086	pRam->GCPhys, pRam->GCPhysLast, pRam->cb, pRam->pvHC ? "bits" : "nobits",
2087	GCPhys, GCPhysLast, cb, fHaveBits ? "bits" : "nobits"));
2088	/*
2089	* If we're loading a state for debugging purpose, don't make a fuss if
2090	* the MMIO[2] and ROM stuff isn't 100% right, just skip the mismatches.
2091	*/
2092	if ( SSMR3HandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT
2093	\|\| GCPhys < 8 * _1M)
2094	AssertFailedReturn(VERR_SSM_LOAD_CONFIG_MISMATCH);
2095
2096	RTGCPHYS cPages = ((GCPhysLast - GCPhys) + 1) >> PAGE_SHIFT;
2097	while (cPages-- > 0)
2098	{
2099	uint16_t u16Ignore;
2100	SSMR3GetU16(pSSM, &u16Ignore);
2101	}
2102	continue;
2103	}
2104
2105	/* Flags. */
2106	const unsigned cPages = pRam->cb >> PAGE_SHIFT;
2107	for (unsigned iPage = 0; iPage < cPages; iPage++)
2108	{
2109	uint16_t u16 = 0;
2110	SSMR3GetU16(pSSM, &u16);
2111	u16 &= PAGE_OFFSET_MASK & ~( RT_BIT(4) \| RT_BIT(5) \| RT_BIT(6)
2112	\| RT_BIT(7) \| RT_BIT(8) \| RT_BIT(9) \| RT_BIT(10) );
2113	// &= MM_RAM_FLAGS_DYNAMIC_ALLOC \| MM_RAM_FLAGS_RESERVED \| MM_RAM_FLAGS_ROM \| MM_RAM_FLAGS_MMIO \| MM_RAM_FLAGS_MMIO2
2114	pRam->aPages[iPage].HCPhys = PGM_PAGE_GET_HCPHYS(&pRam->aPages[iPage]) \| (RTHCPHYS)u16; /** @todo PAGE FLAGS */
2115	}
2116
2117	/* any memory associated with the range. */
2118	if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
2119	{
2120	for (unsigned iChunk = 0; iChunk < (pRam->cb >> PGM_DYNAMIC_CHUNK_SHIFT); iChunk++)
2121	{
2122	uint8_t fValidChunk;
2123
2124	rc = SSMR3GetU8(pSSM, &fValidChunk);
2125	if (VBOX_FAILURE(rc))
2126	return rc;
2127	if (fValidChunk > 1)
2128	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2129
2130	if (fValidChunk)
2131	{
2132	if (!pRam->pavHCChunkHC[iChunk])
2133	{
2134	rc = pgmr3PhysGrowRange(pVM, pRam->GCPhys + iChunk * PGM_DYNAMIC_CHUNK_SIZE);
2135	if (VBOX_FAILURE(rc))
2136	return rc;
2137	}
2138	Assert(pRam->pavHCChunkHC[iChunk]);
2139
2140	SSMR3GetMem(pSSM, pRam->pavHCChunkHC[iChunk], PGM_DYNAMIC_CHUNK_SIZE);
2141	}
2142	/* else nothing to do */
2143	}
2144	}
2145	else if (pRam->pvHC)
2146	{
2147	int rc = SSMR3GetMem(pSSM, pRam->pvHC, pRam->cb);
2148	if (VBOX_FAILURE(rc))
2149	{
2150	Log(("pgmR3Save: SSMR3GetMem(, %p, %#x) -> %Vrc\n", pRam->pvHC, pRam->cb, rc));
2151	return rc;
2152	}
2153	}
2154	}
2155
2156	/*
2157	* We require a full resync now.
2158	*/
2159	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3_NON_GLOBAL);
2160	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
2161	pPGM->fSyncFlags \|= PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL;
2162	pPGM->fPhysCacheFlushPending = true;
2163	pgmR3HandlerPhysicalUpdateAll(pVM);
2164
2165	/*
2166	* Change the paging mode.
2167	*/
2168	return pgmR3ChangeMode(pVM, pPGM->enmGuestMode);
2169	}
2170
2171
2172	/**
2173	* Show paging mode.
2174	*
2175	* @param pVM VM Handle.
2176	* @param pHlp The info helpers.
2177	* @param pszArgs "all" (default), "guest", "shadow" or "host".
2178	*/
2179	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2180	{
2181	/* digest argument. */
2182	bool fGuest, fShadow, fHost;
2183	if (pszArgs)
2184	pszArgs = RTStrStripL(pszArgs);
2185	if (!pszArgs \|\| !*pszArgs \|\| strstr(pszArgs, "all"))
2186	fShadow = fHost = fGuest = true;
2187	else
2188	{
2189	fShadow = fHost = fGuest = false;
2190	if (strstr(pszArgs, "guest"))
2191	fGuest = true;
2192	if (strstr(pszArgs, "shadow"))
2193	fShadow = true;
2194	if (strstr(pszArgs, "host"))
2195	fHost = true;
2196	}
2197
2198	/* print info. */
2199	if (fGuest)
2200	pHlp->pfnPrintf(pHlp, "Guest paging mode: %s, changed %RU64 times, A20 %s\n",
2201	PGMGetModeName(pVM->pgm.s.enmGuestMode), pVM->pgm.s.cGuestModeChanges.c,
2202	pVM->pgm.s.fA20Enabled ? "enabled" : "disabled");
2203	if (fShadow)
2204	pHlp->pfnPrintf(pHlp, "Shadow paging mode: %s\n", PGMGetModeName(pVM->pgm.s.enmShadowMode));
2205	if (fHost)
2206	{
2207	const char *psz;
2208	switch (pVM->pgm.s.enmHostMode)
2209	{
2210	case SUPPAGINGMODE_INVALID: psz = "invalid"; break;
2211	case SUPPAGINGMODE_32_BIT: psz = "32-bit"; break;
2212	case SUPPAGINGMODE_32_BIT_GLOBAL: psz = "32-bit+G"; break;
2213	case SUPPAGINGMODE_PAE: psz = "PAE"; break;
2214	case SUPPAGINGMODE_PAE_GLOBAL: psz = "PAE+G"; break;
2215	case SUPPAGINGMODE_PAE_NX: psz = "PAE+NX"; break;
2216	case SUPPAGINGMODE_PAE_GLOBAL_NX: psz = "PAE+G+NX"; break;
2217	case SUPPAGINGMODE_AMD64: psz = "AMD64"; break;
2218	case SUPPAGINGMODE_AMD64_GLOBAL: psz = "AMD64+G"; break;
2219	case SUPPAGINGMODE_AMD64_NX: psz = "AMD64+NX"; break;
2220	case SUPPAGINGMODE_AMD64_GLOBAL_NX: psz = "AMD64+G+NX"; break;
2221	default: psz = "unknown"; break;
2222	}
2223	pHlp->pfnPrintf(pHlp, "Host paging mode: %s\n", psz);
2224	}
2225	}
2226
2227
2228	/**
2229	* Dump registered MMIO ranges to the log.
2230	*
2231	* @param pVM VM Handle.
2232	* @param pHlp The info helpers.
2233	* @param pszArgs Arguments, ignored.
2234	*/
2235	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2236	{
2237	NOREF(pszArgs);
2238	pHlp->pfnPrintf(pHlp,
2239	"RAM ranges (pVM=%p)\n"
2240	"%.s %.s\n",
2241	pVM,
2242	sizeof(RTGCPHYS) * 4 + 1, "GC Phys Range ",
2243	sizeof(RTHCPTR) * 2, "pvHC ");
2244
2245	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
2246	pHlp->pfnPrintf(pHlp,
2247	"%RGp-%RGp %RHv %s\n",
2248	pCur->GCPhys,
2249	pCur->GCPhysLast,
2250	pCur->pvHC,
2251	pCur->pszDesc);
2252	}
2253
2254	/**
2255	* Dump the page directory to the log.
2256	*
2257	* @param pVM VM Handle.
2258	* @param pHlp The info helpers.
2259	* @param pszArgs Arguments, ignored.
2260	*/
2261	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2262	{
2263	/** @todo fix this! Convert the PGMR3DumpHierarchyHC functions to do guest stuff. */
2264	/* Big pages supported? */
2265	const bool fPSE = !!(CPUMGetGuestCR4(pVM) & X86_CR4_PSE);
2266	/* Global pages supported? */
2267	const bool fPGE = !!(CPUMGetGuestCR4(pVM) & X86_CR4_PGE);
2268
2269	NOREF(pszArgs);
2270
2271	/*
2272	* Get page directory addresses.
2273	*/
2274	PX86PD pPDSrc = pVM->pgm.s.pGuestPDHC;
2275	Assert(pPDSrc);
2276	Assert(MMPhysGCPhys2HCVirt(pVM, (RTGCPHYS)(CPUMGetGuestCR3(pVM) & X86_CR3_PAGE_MASK), sizeof(*pPDSrc)) == pPDSrc);
2277
2278	/*
2279	* Iterate the page directory.
2280	*/
2281	for (unsigned iPD = 0; iPD < ELEMENTS(pPDSrc->a); iPD++)
2282	{
2283	X86PDE PdeSrc = pPDSrc->a[iPD];
2284	if (PdeSrc.n.u1Present)
2285	{
2286	if (PdeSrc.b.u1Size && fPSE)
2287	{
2288	pHlp->pfnPrintf(pHlp,
2289	"%04X - %VGp P=%d U=%d RW=%d G=%d - BIG\n",
2290	iPD,
2291	PdeSrc.u & X86_PDE_PG_MASK,
2292	PdeSrc.b.u1Present, PdeSrc.b.u1User, PdeSrc.b.u1Write, PdeSrc.b.u1Global && fPGE);
2293	}
2294	else
2295	{
2296	pHlp->pfnPrintf(pHlp,
2297	"%04X - %VGp P=%d U=%d RW=%d [G=%d]\n",
2298	iPD,
2299	PdeSrc.u & X86_PDE4M_PG_MASK,
2300	PdeSrc.n.u1Present, PdeSrc.n.u1User, PdeSrc.n.u1Write, PdeSrc.b.u1Global && fPGE);
2301	}
2302	}
2303	}
2304	}
2305
2306
2307	/**
2308	* Serivce a VMMCALLHOST_PGM_LOCK call.
2309	*
2310	* @returns VBox status code.
2311	* @param pVM The VM handle.
2312	*/
2313	PDMR3DECL(int) PGMR3LockCall(PVM pVM)
2314	{
2315	int rc = PDMR3CritSectEnterEx(&pVM->pgm.s.CritSect, true /* fHostCall */);
2316	AssertRC(rc);
2317	return rc;
2318	}
2319
2320
2321	/**
2322	* Converts a PGMMODE value to a PGM_TYPE_* \#define.
2323	*
2324	* @returns PGM_TYPE_*.
2325	* @param pgmMode The mode value to convert.
2326	*/
2327	DECLINLINE(unsigned) pgmModeToType(PGMMODE pgmMode)
2328	{
2329	switch (pgmMode)
2330	{
2331	case PGMMODE_REAL: return PGM_TYPE_REAL;
2332	case PGMMODE_PROTECTED: return PGM_TYPE_PROT;
2333	case PGMMODE_32_BIT: return PGM_TYPE_32BIT;
2334	case PGMMODE_PAE:
2335	case PGMMODE_PAE_NX: return PGM_TYPE_PAE;
2336	case PGMMODE_AMD64:
2337	case PGMMODE_AMD64_NX: return PGM_TYPE_AMD64;
2338	default:
2339	AssertFatalMsgFailed(("pgmMode=%d\n", pgmMode));
2340	}
2341	}
2342
2343
2344	/**
2345	* Gets the index into the paging mode data array of a SHW+GST mode.
2346	*
2347	* @returns PGM::paPagingData index.
2348	* @param uShwType The shadow paging mode type.
2349	* @param uGstType The guest paging mode type.
2350	*/
2351	DECLINLINE(unsigned) pgmModeDataIndex(unsigned uShwType, unsigned uGstType)
2352	{
2353	Assert(uShwType >= PGM_TYPE_32BIT && uShwType <= PGM_TYPE_AMD64);
2354	Assert(uGstType >= PGM_TYPE_REAL && uGstType <= PGM_TYPE_AMD64);
2355	return (uShwType - PGM_TYPE_32BIT) * (PGM_TYPE_AMD64 - PGM_TYPE_32BIT + 1)
2356	+ (uGstType - PGM_TYPE_REAL);
2357	}
2358
2359
2360	/**
2361	* Gets the index into the paging mode data array of a SHW+GST mode.
2362	*
2363	* @returns PGM::paPagingData index.
2364	* @param enmShw The shadow paging mode.
2365	* @param enmGst The guest paging mode.
2366	*/
2367	DECLINLINE(unsigned) pgmModeDataIndexByMode(PGMMODE enmShw, PGMMODE enmGst)
2368	{
2369	Assert(enmShw >= PGMMODE_32_BIT && enmShw <= PGMMODE_MAX);
2370	Assert(enmGst > PGMMODE_INVALID && enmGst < PGMMODE_MAX);
2371	return pgmModeDataIndex(pgmModeToType(enmShw), pgmModeToType(enmGst));
2372	}
2373
2374
2375	/**
2376	* Calculates the max data index.
2377	* @returns The number of entries in the pagaing data array.
2378	*/
2379	DECLINLINE(unsigned) pgmModeDataMaxIndex(void)
2380	{
2381	return pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_AMD64) + 1;
2382	}
2383
2384
2385	/**
2386	* Initializes the paging mode data kept in PGM::paModeData.
2387	*
2388	* @param pVM The VM handle.
2389	* @param fResolveGCAndR0 Indicate whether or not GC and Ring-0 symbols can be resolved now.
2390	* This is used early in the init process to avoid trouble with PDM
2391	* not being initialized yet.
2392	*/
2393	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0)
2394	{
2395	PPGMMODEDATA pModeData;
2396	int rc;
2397
2398	/*
2399	* Allocate the array on the first call.
2400	*/
2401	if (!pVM->pgm.s.paModeData)
2402	{
2403	pVM->pgm.s.paModeData = (PPGMMODEDATA)MMR3HeapAllocZ(pVM, MM_TAG_PGM, sizeof(PGMMODEDATA) * pgmModeDataMaxIndex());
2404	AssertReturn(pVM->pgm.s.paModeData, VERR_NO_MEMORY);
2405	}
2406
2407	/*
2408	* Initialize the array entries.
2409	*/
2410	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_REAL)];
2411	pModeData->uShwType = PGM_TYPE_32BIT;
2412	pModeData->uGstType = PGM_TYPE_REAL;
2413	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2414	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2415	rc = PGM_BTH_NAME_32BIT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2416
2417	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGMMODE_PROTECTED)];
2418	pModeData->uShwType = PGM_TYPE_32BIT;
2419	pModeData->uGstType = PGM_TYPE_PROT;
2420	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2421	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2422	rc = PGM_BTH_NAME_32BIT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2423
2424	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_32BIT)];
2425	pModeData->uShwType = PGM_TYPE_32BIT;
2426	pModeData->uGstType = PGM_TYPE_32BIT;
2427	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2428	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2429	rc = PGM_BTH_NAME_32BIT_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2430
2431	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_REAL)];
2432	pModeData->uShwType = PGM_TYPE_PAE;
2433	pModeData->uGstType = PGM_TYPE_REAL;
2434	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2435	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2436	rc = PGM_BTH_NAME_PAE_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2437
2438	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PROT)];
2439	pModeData->uShwType = PGM_TYPE_PAE;
2440	pModeData->uGstType = PGM_TYPE_PROT;
2441	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2442	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2443	rc = PGM_BTH_NAME_PAE_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2444
2445	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_32BIT)];
2446	pModeData->uShwType = PGM_TYPE_PAE;
2447	pModeData->uGstType = PGM_TYPE_32BIT;
2448	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2449	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2450	rc = PGM_BTH_NAME_PAE_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2451
2452	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PAE)];
2453	pModeData->uShwType = PGM_TYPE_PAE;
2454	pModeData->uGstType = PGM_TYPE_PAE;
2455	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2456	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2457	rc = PGM_BTH_NAME_PAE_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2458
2459	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_AMD64)];
2460	pModeData->uShwType = PGM_TYPE_AMD64;
2461	pModeData->uGstType = PGM_TYPE_AMD64;
2462	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2463	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2464
2465	return VINF_SUCCESS;
2466	}
2467
2468
2469	/**
2470	* Swtich to different (or relocated in the relocate case) mode data.
2471	*
2472	* @param pVM The VM handle.
2473	* @param enmShw The the shadow paging mode.
2474	* @param enmGst The the guest paging mode.
2475	*/
2476	static void pgmR3ModeDataSwitch(PVM pVM, PGMMODE enmShw, PGMMODE enmGst)
2477	{
2478	PPGMMODEDATA pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(enmShw, enmGst)];
2479
2480	Assert(pModeData->uGstType == pgmModeToType(enmGst));
2481	Assert(pModeData->uShwType == pgmModeToType(enmShw));
2482
2483	/* shadow */
2484	pVM->pgm.s.pfnR3ShwRelocate = pModeData->pfnR3ShwRelocate;
2485	pVM->pgm.s.pfnR3ShwExit = pModeData->pfnR3ShwExit;
2486	pVM->pgm.s.pfnR3ShwGetPage = pModeData->pfnR3ShwGetPage;
2487	Assert(pVM->pgm.s.pfnR3ShwGetPage);
2488	pVM->pgm.s.pfnR3ShwModifyPage = pModeData->pfnR3ShwModifyPage;
2489
2490	pVM->pgm.s.pfnGCShwGetPage = pModeData->pfnGCShwGetPage;
2491	pVM->pgm.s.pfnGCShwModifyPage = pModeData->pfnGCShwModifyPage;
2492
2493	pVM->pgm.s.pfnR0ShwGetPage = pModeData->pfnR0ShwGetPage;
2494	pVM->pgm.s.pfnR0ShwModifyPage = pModeData->pfnR0ShwModifyPage;
2495
2496
2497	/* guest */
2498	pVM->pgm.s.pfnR3GstRelocate = pModeData->pfnR3GstRelocate;
2499	pVM->pgm.s.pfnR3GstExit = pModeData->pfnR3GstExit;
2500	pVM->pgm.s.pfnR3GstGetPage = pModeData->pfnR3GstGetPage;
2501	Assert(pVM->pgm.s.pfnR3GstGetPage);
2502	pVM->pgm.s.pfnR3GstModifyPage = pModeData->pfnR3GstModifyPage;
2503	pVM->pgm.s.pfnR3GstGetPDE = pModeData->pfnR3GstGetPDE;
2504	pVM->pgm.s.pfnR3GstMonitorCR3 = pModeData->pfnR3GstMonitorCR3;
2505	pVM->pgm.s.pfnR3GstUnmonitorCR3 = pModeData->pfnR3GstUnmonitorCR3;
2506	pVM->pgm.s.pfnR3GstMapCR3 = pModeData->pfnR3GstMapCR3;
2507	pVM->pgm.s.pfnR3GstUnmapCR3 = pModeData->pfnR3GstUnmapCR3;
2508	pVM->pgm.s.pfnR3GstWriteHandlerCR3 = pModeData->pfnR3GstWriteHandlerCR3;
2509	pVM->pgm.s.pszR3GstWriteHandlerCR3 = pModeData->pszR3GstWriteHandlerCR3;
2510	pVM->pgm.s.pfnR3GstPAEWriteHandlerCR3 = pModeData->pfnR3GstPAEWriteHandlerCR3;
2511	pVM->pgm.s.pszR3GstPAEWriteHandlerCR3 = pModeData->pszR3GstPAEWriteHandlerCR3;
2512
2513	pVM->pgm.s.pfnGCGstGetPage = pModeData->pfnGCGstGetPage;
2514	pVM->pgm.s.pfnGCGstModifyPage = pModeData->pfnGCGstModifyPage;
2515	pVM->pgm.s.pfnGCGstGetPDE = pModeData->pfnGCGstGetPDE;
2516	pVM->pgm.s.pfnGCGstMonitorCR3 = pModeData->pfnGCGstMonitorCR3;
2517	pVM->pgm.s.pfnGCGstUnmonitorCR3 = pModeData->pfnGCGstUnmonitorCR3;
2518	pVM->pgm.s.pfnGCGstMapCR3 = pModeData->pfnGCGstMapCR3;
2519	pVM->pgm.s.pfnGCGstUnmapCR3 = pModeData->pfnGCGstUnmapCR3;
2520	pVM->pgm.s.pfnGCGstWriteHandlerCR3 = pModeData->pfnGCGstWriteHandlerCR3;
2521	pVM->pgm.s.pfnGCGstPAEWriteHandlerCR3 = pModeData->pfnGCGstPAEWriteHandlerCR3;
2522
2523	pVM->pgm.s.pfnR0GstGetPage = pModeData->pfnR0GstGetPage;
2524	pVM->pgm.s.pfnR0GstModifyPage = pModeData->pfnR0GstModifyPage;
2525	pVM->pgm.s.pfnR0GstGetPDE = pModeData->pfnR0GstGetPDE;
2526	pVM->pgm.s.pfnR0GstMonitorCR3 = pModeData->pfnR0GstMonitorCR3;
2527	pVM->pgm.s.pfnR0GstUnmonitorCR3 = pModeData->pfnR0GstUnmonitorCR3;
2528	pVM->pgm.s.pfnR0GstMapCR3 = pModeData->pfnR0GstMapCR3;
2529	pVM->pgm.s.pfnR0GstUnmapCR3 = pModeData->pfnR0GstUnmapCR3;
2530	pVM->pgm.s.pfnR0GstWriteHandlerCR3 = pModeData->pfnR0GstWriteHandlerCR3;
2531	pVM->pgm.s.pfnR0GstPAEWriteHandlerCR3 = pModeData->pfnR0GstPAEWriteHandlerCR3;
2532
2533
2534	/* both */
2535	pVM->pgm.s.pfnR3BthRelocate = pModeData->pfnR3BthRelocate;
2536	pVM->pgm.s.pfnR3BthTrap0eHandler = pModeData->pfnR3BthTrap0eHandler;
2537	pVM->pgm.s.pfnR3BthInvalidatePage = pModeData->pfnR3BthInvalidatePage;
2538	pVM->pgm.s.pfnR3BthSyncCR3 = pModeData->pfnR3BthSyncCR3;
2539	Assert(pVM->pgm.s.pfnR3BthSyncCR3);
2540	pVM->pgm.s.pfnR3BthSyncPage = pModeData->pfnR3BthSyncPage;
2541	pVM->pgm.s.pfnR3BthPrefetchPage = pModeData->pfnR3BthPrefetchPage;
2542	pVM->pgm.s.pfnR3BthVerifyAccessSyncPage = pModeData->pfnR3BthVerifyAccessSyncPage;
2543	#ifdef VBOX_STRICT
2544	pVM->pgm.s.pfnR3BthAssertCR3 = pModeData->pfnR3BthAssertCR3;
2545	#endif
2546
2547	pVM->pgm.s.pfnGCBthTrap0eHandler = pModeData->pfnGCBthTrap0eHandler;
2548	pVM->pgm.s.pfnGCBthInvalidatePage = pModeData->pfnGCBthInvalidatePage;
2549	pVM->pgm.s.pfnGCBthSyncCR3 = pModeData->pfnGCBthSyncCR3;
2550	pVM->pgm.s.pfnGCBthSyncPage = pModeData->pfnGCBthSyncPage;
2551	pVM->pgm.s.pfnGCBthPrefetchPage = pModeData->pfnGCBthPrefetchPage;
2552	pVM->pgm.s.pfnGCBthVerifyAccessSyncPage = pModeData->pfnGCBthVerifyAccessSyncPage;
2553	#ifdef VBOX_STRICT
2554	pVM->pgm.s.pfnGCBthAssertCR3 = pModeData->pfnGCBthAssertCR3;
2555	#endif
2556
2557	pVM->pgm.s.pfnR0BthTrap0eHandler = pModeData->pfnR0BthTrap0eHandler;
2558	pVM->pgm.s.pfnR0BthInvalidatePage = pModeData->pfnR0BthInvalidatePage;
2559	pVM->pgm.s.pfnR0BthSyncCR3 = pModeData->pfnR0BthSyncCR3;
2560	pVM->pgm.s.pfnR0BthSyncPage = pModeData->pfnR0BthSyncPage;
2561	pVM->pgm.s.pfnR0BthPrefetchPage = pModeData->pfnR0BthPrefetchPage;
2562	pVM->pgm.s.pfnR0BthVerifyAccessSyncPage = pModeData->pfnR0BthVerifyAccessSyncPage;
2563	#ifdef VBOX_STRICT
2564	pVM->pgm.s.pfnR0BthAssertCR3 = pModeData->pfnR0BthAssertCR3;
2565	#endif
2566	}
2567
2568
2569	#ifdef DEBUG_bird
2570	#include <stdlib.h> /* getenv() remove me! */
2571	#endif
2572
2573	/**
2574	* Calculates the shadow paging mode.
2575	*
2576	* @returns The shadow paging mode.
2577	* @param enmGuestMode The guest mode.
2578	* @param enmHostMode The host mode.
2579	* @param enmShadowMode The current shadow mode.
2580	* @param penmSwitcher Where to store the switcher to use.
2581	* VMMSWITCHER_INVALID means no change.
2582	*/
2583	static PGMMODE pgmR3CalcShadowMode(PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher)
2584	{
2585	VMMSWITCHER enmSwitcher = VMMSWITCHER_INVALID;
2586	switch (enmGuestMode)
2587	{
2588	/*
2589	* When switching to real or protected mode we don't change
2590	* anything since it's likely that we'll switch back pretty soon.
2591	*
2592	* During pgmR3InitPaging we'll end up here with PGMMODE_INVALID
2593	* and is supposed to determin which shadow paging and switcher to
2594	* use during init.
2595	*/
2596	case PGMMODE_REAL:
2597	case PGMMODE_PROTECTED:
2598	if (enmShadowMode != PGMMODE_INVALID)
2599	break; /* (no change) */
2600	switch (enmHostMode)
2601	{
2602	case SUPPAGINGMODE_32_BIT:
2603	case SUPPAGINGMODE_32_BIT_GLOBAL:
2604	enmShadowMode = PGMMODE_32_BIT;
2605	enmSwitcher = VMMSWITCHER_32_TO_32;
2606	break;
2607
2608	case SUPPAGINGMODE_PAE:
2609	case SUPPAGINGMODE_PAE_NX:
2610	case SUPPAGINGMODE_PAE_GLOBAL:
2611	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2612	enmShadowMode = PGMMODE_PAE;
2613	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2614	#ifdef DEBUG_bird
2615	if (getenv("VBOX_32BIT"))
2616	{
2617	enmShadowMode = PGMMODE_32_BIT;
2618	enmSwitcher = VMMSWITCHER_PAE_TO_32;
2619	}
2620	#endif
2621	break;
2622
2623	case SUPPAGINGMODE_AMD64:
2624	case SUPPAGINGMODE_AMD64_GLOBAL:
2625	case SUPPAGINGMODE_AMD64_NX:
2626	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2627	enmShadowMode = PGMMODE_PAE;
2628	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
2629	break;
2630
2631	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2632	}
2633	break;
2634
2635	case PGMMODE_32_BIT:
2636	switch (enmHostMode)
2637	{
2638	case SUPPAGINGMODE_32_BIT:
2639	case SUPPAGINGMODE_32_BIT_GLOBAL:
2640	enmShadowMode = PGMMODE_32_BIT;
2641	enmSwitcher = VMMSWITCHER_32_TO_32;
2642	break;
2643
2644	case SUPPAGINGMODE_PAE:
2645	case SUPPAGINGMODE_PAE_NX:
2646	case SUPPAGINGMODE_PAE_GLOBAL:
2647	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2648	enmShadowMode = PGMMODE_PAE;
2649	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2650	#ifdef DEBUG_bird
2651	if (getenv("VBOX_32BIT"))
2652	{
2653	enmShadowMode = PGMMODE_32_BIT;
2654	enmSwitcher = VMMSWITCHER_PAE_TO_32;
2655	}
2656	#endif
2657	break;
2658
2659	case SUPPAGINGMODE_AMD64:
2660	case SUPPAGINGMODE_AMD64_GLOBAL:
2661	case SUPPAGINGMODE_AMD64_NX:
2662	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2663	enmShadowMode = PGMMODE_PAE;
2664	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
2665	break;
2666
2667	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2668	}
2669	break;
2670
2671	case PGMMODE_PAE:
2672	case PGMMODE_PAE_NX: /** @todo This might require more switchers and guest+both modes. */
2673	switch (enmHostMode)
2674	{
2675	case SUPPAGINGMODE_32_BIT:
2676	case SUPPAGINGMODE_32_BIT_GLOBAL:
2677	enmShadowMode = PGMMODE_PAE;
2678	enmSwitcher = VMMSWITCHER_32_TO_PAE;
2679	break;
2680
2681	case SUPPAGINGMODE_PAE:
2682	case SUPPAGINGMODE_PAE_NX:
2683	case SUPPAGINGMODE_PAE_GLOBAL:
2684	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2685	enmShadowMode = PGMMODE_PAE;
2686	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2687	break;
2688
2689	case SUPPAGINGMODE_AMD64:
2690	case SUPPAGINGMODE_AMD64_GLOBAL:
2691	case SUPPAGINGMODE_AMD64_NX:
2692	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2693	enmShadowMode = PGMMODE_PAE;
2694	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
2695	break;
2696
2697	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2698	}
2699	break;
2700
2701	case PGMMODE_AMD64:
2702	case PGMMODE_AMD64_NX:
2703	switch (enmHostMode)
2704	{
2705	case SUPPAGINGMODE_32_BIT:
2706	case SUPPAGINGMODE_32_BIT_GLOBAL:
2707	enmShadowMode = PGMMODE_PAE;
2708	enmSwitcher = VMMSWITCHER_32_TO_AMD64;
2709	break;
2710
2711	case SUPPAGINGMODE_PAE:
2712	case SUPPAGINGMODE_PAE_NX:
2713	case SUPPAGINGMODE_PAE_GLOBAL:
2714	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2715	enmShadowMode = PGMMODE_PAE;
2716	enmSwitcher = VMMSWITCHER_PAE_TO_AMD64;
2717	break;
2718
2719	case SUPPAGINGMODE_AMD64:
2720	case SUPPAGINGMODE_AMD64_GLOBAL:
2721	case SUPPAGINGMODE_AMD64_NX:
2722	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2723	enmShadowMode = PGMMODE_AMD64;
2724	enmSwitcher = VMMSWITCHER_AMD64_TO_AMD64;
2725	break;
2726
2727	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2728	}
2729	break;
2730
2731
2732	default:
2733	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
2734	return PGMMODE_INVALID;
2735	}
2736
2737	*penmSwitcher = enmSwitcher;
2738	return enmShadowMode;
2739	}
2740
2741
2742	/**
2743	* Performs the actual mode change.
2744	* This is called by PGMChangeMode and pgmR3InitPaging().
2745	*
2746	* @returns VBox status code.
2747	* @param pVM VM handle.
2748	* @param enmGuestMode The new guest mode. This is assumed to be different from
2749	* the current mode.
2750	*/
2751	int pgmR3ChangeMode(PVM pVM, PGMMODE enmGuestMode)
2752	{
2753	LogFlow(("pgmR3ChangeMode: Guest mode: %d -> %d\n", pVM->pgm.s.enmGuestMode, enmGuestMode));
2754	STAM_REL_COUNTER_INC(&pVM->pgm.s.cGuestModeChanges);
2755
2756	/*
2757	* Calc the shadow mode and switcher.
2758	*/
2759	VMMSWITCHER enmSwitcher;
2760	PGMMODE enmShadowMode = pgmR3CalcShadowMode(enmGuestMode, pVM->pgm.s.enmHostMode, pVM->pgm.s.enmShadowMode, &enmSwitcher);
2761	if (enmSwitcher != VMMSWITCHER_INVALID)
2762	{
2763	/*
2764	* Select new switcher.
2765	*/
2766	int rc = VMMR3SelectSwitcher(pVM, enmSwitcher);
2767	if (VBOX_FAILURE(rc))
2768	{
2769	AssertReleaseMsgFailed(("VMMR3SelectSwitcher(%d) -> %Vrc\n", enmSwitcher, rc));
2770	return rc;
2771	}
2772	}
2773
2774	/*
2775	* Exit old mode(s).
2776	*/
2777	/* shadow */
2778	if (enmShadowMode != pVM->pgm.s.enmShadowMode)
2779	{
2780	LogFlow(("pgmR3ChangeMode: Shadow mode: %d -> %d\n", pVM->pgm.s.enmShadowMode, enmShadowMode));
2781	if (PGM_SHW_PFN(Exit, pVM))
2782	{
2783	int rc = PGM_SHW_PFN(Exit, pVM)(pVM);
2784	if (VBOX_FAILURE(rc))
2785	{
2786	AssertMsgFailed(("Exit failed for shadow mode %d: %Vrc\n", pVM->pgm.s.enmShadowMode, rc));
2787	return rc;
2788	}
2789	}
2790
2791	}
2792
2793	/* guest */
2794	if (PGM_GST_PFN(Exit, pVM))
2795	{
2796	int rc = PGM_GST_PFN(Exit, pVM)(pVM);
2797	if (VBOX_FAILURE(rc))
2798	{
2799	AssertMsgFailed(("Exit failed for guest mode %d: %Vrc\n", pVM->pgm.s.enmGuestMode, rc));
2800	return rc;
2801	}
2802	}
2803
2804	/*
2805	* Load new paging mode data.
2806	*/
2807	pgmR3ModeDataSwitch(pVM, enmShadowMode, enmGuestMode);
2808
2809	/*
2810	* Enter new shadow mode (if changed).
2811	*/
2812	if (enmShadowMode != pVM->pgm.s.enmShadowMode)
2813	{
2814	int rc;
2815	pVM->pgm.s.enmShadowMode = enmShadowMode;
2816	switch (enmShadowMode)
2817	{
2818	case PGMMODE_32_BIT:
2819	rc = PGM_SHW_NAME_32BIT(Enter)(pVM);
2820	break;
2821	case PGMMODE_PAE:
2822	case PGMMODE_PAE_NX:
2823	rc = PGM_SHW_NAME_PAE(Enter)(pVM);
2824	break;
2825	case PGMMODE_AMD64:
2826	case PGMMODE_AMD64_NX:
2827	rc = PGM_SHW_NAME_AMD64(Enter)(pVM);
2828	break;
2829	case PGMMODE_REAL:
2830	case PGMMODE_PROTECTED:
2831	default:
2832	AssertReleaseMsgFailed(("enmShadowMode=%d\n", enmShadowMode));
2833	return VERR_INTERNAL_ERROR;
2834	}
2835	if (VBOX_FAILURE(rc))
2836	{
2837	AssertReleaseMsgFailed(("Entering enmShadowMode=%d failed: %Vrc\n", enmShadowMode, rc));
2838	pVM->pgm.s.enmShadowMode = PGMMODE_INVALID;
2839	return rc;
2840	}
2841	}
2842
2843	/*
2844	* Enter the new guest and shadow+guest modes.
2845	*/
2846	int rc = -1;
2847	int rc2 = -1;
2848	RTGCPHYS GCPhysCR3 = NIL_RTGCPHYS;
2849	pVM->pgm.s.enmGuestMode = enmGuestMode;
2850	switch (enmGuestMode)
2851	{
2852	case PGMMODE_REAL:
2853	rc = PGM_GST_NAME_REAL(Enter)(pVM, NIL_RTGCPHYS);
2854	switch (pVM->pgm.s.enmShadowMode)
2855	{
2856	case PGMMODE_32_BIT:
2857	rc2 = PGM_BTH_NAME_32BIT_REAL(Enter)(pVM, NIL_RTGCPHYS);
2858	break;
2859	case PGMMODE_PAE:
2860	case PGMMODE_PAE_NX:
2861	rc2 = PGM_BTH_NAME_PAE_REAL(Enter)(pVM, NIL_RTGCPHYS);
2862	break;
2863	case PGMMODE_AMD64:
2864	case PGMMODE_AMD64_NX:
2865	AssertMsgFailed(("Should use PAE shadow mode!\n"));
2866	default: AssertFailed(); break;
2867	}
2868	break;
2869
2870	case PGMMODE_PROTECTED:
2871	rc = PGM_GST_NAME_PROT(Enter)(pVM, NIL_RTGCPHYS);
2872	switch (pVM->pgm.s.enmShadowMode)
2873	{
2874	case PGMMODE_32_BIT:
2875	rc2 = PGM_BTH_NAME_32BIT_PROT(Enter)(pVM, NIL_RTGCPHYS);
2876	break;
2877	case PGMMODE_PAE:
2878	case PGMMODE_PAE_NX:
2879	rc2 = PGM_BTH_NAME_PAE_PROT(Enter)(pVM, NIL_RTGCPHYS);
2880	break;
2881	case PGMMODE_AMD64:
2882	case PGMMODE_AMD64_NX:
2883	AssertMsgFailed(("Should use PAE shadow mode!\n"));
2884	default: AssertFailed(); break;
2885	}
2886	break;
2887
2888	case PGMMODE_32_BIT:
2889	GCPhysCR3 = CPUMGetGuestCR3(pVM) & X86_CR3_PAGE_MASK;
2890	rc = PGM_GST_NAME_32BIT(Enter)(pVM, GCPhysCR3);
2891	switch (pVM->pgm.s.enmShadowMode)
2892	{
2893	case PGMMODE_32_BIT:
2894	rc2 = PGM_BTH_NAME_32BIT_32BIT(Enter)(pVM, GCPhysCR3);
2895	break;
2896	case PGMMODE_PAE:
2897	case PGMMODE_PAE_NX:
2898	rc2 = PGM_BTH_NAME_PAE_32BIT(Enter)(pVM, GCPhysCR3);
2899	break;
2900	case PGMMODE_AMD64:
2901	case PGMMODE_AMD64_NX:
2902	AssertMsgFailed(("Should use PAE shadow mode!\n"));
2903	default: AssertFailed(); break;
2904	}
2905	break;
2906
2907	//case PGMMODE_PAE_NX:
2908	case PGMMODE_PAE:
2909	{
2910	uint32_t u32Dummy, u32Features;
2911
2912	CPUMGetGuestCpuId(pVM, 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
2913	if (!(u32Features & X86_CPUID_FEATURE_EDX_PAE))
2914	{
2915	/* Pause first, then inform Main. */
2916	rc = VMR3SuspendNoSave(pVM);
2917	AssertRC(rc);
2918
2919	VMSetRuntimeError(pVM, true, "PAEmode",
2920	N_("The guest is trying to switch to the PAE mode which is currently disabled by default in VirtualBox. Experimental PAE support can be enabled using the -pae option with VBoxManage."));
2921	/* we must return TRUE here otherwise the recompiler will assert */
2922	return VINF_SUCCESS;
2923	}
2924	GCPhysCR3 = CPUMGetGuestCR3(pVM) & X86_CR3_PAE_PAGE_MASK;
2925	rc = PGM_GST_NAME_PAE(Enter)(pVM, GCPhysCR3);
2926	switch (pVM->pgm.s.enmShadowMode)
2927	{
2928	case PGMMODE_PAE:
2929	case PGMMODE_PAE_NX:
2930	rc2 = PGM_BTH_NAME_PAE_PAE(Enter)(pVM, GCPhysCR3);
2931	break;
2932	case PGMMODE_32_BIT:
2933	case PGMMODE_AMD64:
2934	case PGMMODE_AMD64_NX:
2935	AssertMsgFailed(("Should use PAE shadow mode!\n"));
2936	default: AssertFailed(); break;
2937	}
2938	break;
2939	}
2940
2941	//case PGMMODE_AMD64_NX:
2942	case PGMMODE_AMD64:
2943	GCPhysCR3 = CPUMGetGuestCR3(pVM) & 0xfffffffffffff000ULL; /** @todo define this mask and make CR3 64-bit in this case! */
2944	rc = PGM_GST_NAME_AMD64(Enter)(pVM, GCPhysCR3);
2945	switch (pVM->pgm.s.enmShadowMode)
2946	{
2947	case PGMMODE_AMD64:
2948	case PGMMODE_AMD64_NX:
2949	rc2 = PGM_BTH_NAME_AMD64_AMD64(Enter)(pVM, GCPhysCR3);
2950	break;
2951	case PGMMODE_32_BIT:
2952	case PGMMODE_PAE:
2953	case PGMMODE_PAE_NX:
2954	AssertMsgFailed(("Should use AMD64 shadow mode!\n"));
2955	default: AssertFailed(); break;
2956	}
2957	break;
2958
2959	default:
2960	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
2961	rc = VERR_NOT_IMPLEMENTED;
2962	break;
2963	}
2964
2965	/* status codes. */
2966	AssertRC(rc);
2967	AssertRC(rc2);
2968	if (VBOX_SUCCESS(rc))
2969	{
2970	rc = rc2;
2971	if (VBOX_SUCCESS(rc)) /* no informational status codes. */
2972	rc = VINF_SUCCESS;
2973	}
2974
2975	/*
2976	* Notify SELM so it can update the TSSes with correct CR3s.
2977	*/
2978	SELMR3PagingModeChanged(pVM);
2979
2980	/* Notify HWACCM as well. */
2981	HWACCMR3PagingModeChanged(pVM, pVM->pgm.s.enmShadowMode);
2982	return rc;
2983	}
2984
2985
2986	/**
2987	* Dumps a PAE shadow page table.
2988	*
2989	* @returns VBox status code (VINF_SUCCESS).
2990	* @param pVM The VM handle.
2991	* @param pPT Pointer to the page table.
2992	* @param u64Address The virtual address of the page table starts.
2993	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
2994	* @param cMaxDepth The maxium depth.
2995	* @param pHlp Pointer to the output functions.
2996	*/
2997	static int pgmR3DumpHierarchyHCPaePT(PVM pVM, PX86PTPAE pPT, uint64_t u64Address, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
2998	{
2999	for (unsigned i = 0; i < ELEMENTS(pPT->a); i++)
3000	{
3001	X86PTEPAE Pte = pPT->a[i];
3002	if (Pte.n.u1Present)
3003	{
3004	pHlp->pfnPrintf(pHlp,
3005	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3006	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n"
3007	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n",
3008	u64Address + ((uint64_t)i << X86_PT_PAE_SHIFT),
3009	Pte.n.u1Write ? 'W' : 'R',
3010	Pte.n.u1User ? 'U' : 'S',
3011	Pte.n.u1Accessed ? 'A' : '-',
3012	Pte.n.u1Dirty ? 'D' : '-',
3013	Pte.n.u1Global ? 'G' : '-',
3014	Pte.n.u1WriteThru ? "WT" : "--",
3015	Pte.n.u1CacheDisable? "CD" : "--",
3016	Pte.n.u1PAT ? "AT" : "--",
3017	Pte.n.u1NoExecute ? "NX" : "--",
3018	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3019	Pte.u & RT_BIT(10) ? '1' : '0',
3020	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED? 'v' : '-',
3021	Pte.u & X86_PTE_PAE_PG_MASK);
3022	}
3023	}
3024	return VINF_SUCCESS;
3025	}
3026
3027
3028	/**
3029	* Dumps a PAE shadow page directory table.
3030	*
3031	* @returns VBox status code (VINF_SUCCESS).
3032	* @param pVM The VM handle.
3033	* @param HCPhys The physical address of the page directory table.
3034	* @param u64Address The virtual address of the page table starts.
3035	* @param cr4 The CR4, PSE is currently used.
3036	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
3037	* @param cMaxDepth The maxium depth.
3038	* @param pHlp Pointer to the output functions.
3039	*/
3040	static int pgmR3DumpHierarchyHCPaePD(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3041	{
3042	PX86PDPAE pPD = (PX86PDPAE)MMPagePhys2Page(pVM, HCPhys);
3043	if (!pPD)
3044	{
3045	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory at HCPhys=%#VHp was not found in the page pool!\n",
3046	fLongMode ? 16 : 8, u64Address, HCPhys);
3047	return VERR_INVALID_PARAMETER;
3048	}
3049	int rc = VINF_SUCCESS;
3050	for (unsigned i = 0; i < ELEMENTS(pPD->a); i++)
3051	{
3052	X86PDEPAE Pde = pPD->a[i];
3053	if (Pde.n.u1Present)
3054	{
3055	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
3056	pHlp->pfnPrintf(pHlp,
3057	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3058	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n"
3059	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n",
3060	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
3061	Pde.b.u1Write ? 'W' : 'R',
3062	Pde.b.u1User ? 'U' : 'S',
3063	Pde.b.u1Accessed ? 'A' : '-',
3064	Pde.b.u1Dirty ? 'D' : '-',
3065	Pde.b.u1Global ? 'G' : '-',
3066	Pde.b.u1WriteThru ? "WT" : "--",
3067	Pde.b.u1CacheDisable? "CD" : "--",
3068	Pde.b.u1PAT ? "AT" : "--",
3069	Pde.b.u1NoExecute ? "NX" : "--",
3070	Pde.u & RT_BIT_64(9) ? '1' : '0',
3071	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3072	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3073	Pde.u & X86_PDE_PAE_PG_MASK);
3074	else
3075	{
3076	pHlp->pfnPrintf(pHlp,
3077	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3078	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n"
3079	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n",
3080	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
3081	Pde.n.u1Write ? 'W' : 'R',
3082	Pde.n.u1User ? 'U' : 'S',
3083	Pde.n.u1Accessed ? 'A' : '-',
3084	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3085	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3086	Pde.n.u1WriteThru ? "WT" : "--",
3087	Pde.n.u1CacheDisable? "CD" : "--",
3088	Pde.n.u1NoExecute ? "NX" : "--",
3089	Pde.u & RT_BIT_64(9) ? '1' : '0',
3090	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3091	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3092	Pde.u & X86_PDE_PAE_PG_MASK);
3093	if (cMaxDepth >= 1)
3094	{
3095	/** @todo what about using the page pool for mapping PTs? */
3096	uint64_t u64AddressPT = u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT);
3097	RTHCPHYS HCPhysPT = Pde.u & X86_PDE_PAE_PG_MASK;
3098	PX86PTPAE pPT = NULL;
3099	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
3100	pPT = (PX86PTPAE)MMPagePhys2Page(pVM, HCPhysPT);
3101	else
3102	{
3103	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
3104	{
3105	uint64_t off = u64AddressPT - pMap->GCPtr;
3106	if (off < pMap->cb)
3107	{
3108	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
3109	const int iSub = (int)((off >> X86_PD_PAE_SHIFT) & 1); /* MSC is a pain sometimes */
3110	if ((iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0) != HCPhysPT)
3111	pHlp->pfnPrintf(pHlp, "%0*llx error! Mapping error! PT %d has HCPhysPT=%VHp not %VHp is in the PD.\n",
3112	fLongMode ? 16 : 8, u64AddressPT, iPDE,
3113	iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0, HCPhysPT);
3114	pPT = &pMap->aPTs[iPDE].paPaePTsR3[iSub];
3115	}
3116	}
3117	}
3118	int rc2 = VERR_INVALID_PARAMETER;
3119	if (pPT)
3120	rc2 = pgmR3DumpHierarchyHCPaePT(pVM, pPT, u64AddressPT, fLongMode, cMaxDepth - 1, pHlp);
3121	else
3122	pHlp->pfnPrintf(pHlp, "%0*llx error! Page table at HCPhys=%#VHp was not found in the page pool!\n",
3123	fLongMode ? 16 : 8, u64AddressPT, HCPhysPT);
3124	if (rc2 < rc && VBOX_SUCCESS(rc))
3125	rc = rc2;
3126	}
3127	}
3128	}
3129	}
3130	return rc;
3131	}
3132
3133
3134	/**
3135	* Dumps a PAE shadow page directory pointer table.
3136	*
3137	* @returns VBox status code (VINF_SUCCESS).
3138	* @param pVM The VM handle.
3139	* @param HCPhys The physical address of the page directory pointer table.
3140	* @param u64Address The virtual address of the page table starts.
3141	* @param cr4 The CR4, PSE is currently used.
3142	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
3143	* @param cMaxDepth The maxium depth.
3144	* @param pHlp Pointer to the output functions.
3145	*/
3146	static int pgmR3DumpHierarchyHCPaePDPT(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3147	{
3148	PX86PDPT pPDPT = (PX86PDPT)MMPagePhys2Page(pVM, HCPhys);
3149	if (!pPDPT)
3150	{
3151	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory pointer table at HCPhys=%#VHp was not found in the page pool!\n",
3152	fLongMode ? 16 : 8, u64Address, HCPhys);
3153	return VERR_INVALID_PARAMETER;
3154	}
3155
3156	int rc = VINF_SUCCESS;
3157	const unsigned c = fLongMode ? ELEMENTS(pPDPT->a) : X86_PG_PAE_PDPE_ENTRIES;
3158	for (unsigned i = 0; i < c; i++)
3159	{
3160	X86PDPE Pdpe = pPDPT->a[i];
3161	if (Pdpe.n.u1Present)
3162	{
3163	if (fLongMode)
3164	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
3165	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
3166	u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
3167	Pdpe.lm.u1Write ? 'W' : 'R',
3168	Pdpe.lm.u1User ? 'U' : 'S',
3169	Pdpe.lm.u1Accessed ? 'A' : '-',
3170	Pdpe.lm.u3Reserved & 1? '?' : '.', /* ignored */
3171	Pdpe.lm.u3Reserved & 4? '!' : '.', /* mbz */
3172	Pdpe.lm.u1WriteThru ? "WT" : "--",
3173	Pdpe.lm.u1CacheDisable? "CD" : "--",
3174	Pdpe.lm.u3Reserved & 2? "!" : "..",/* mbz */
3175	Pdpe.lm.u1NoExecute ? "NX" : "--",
3176	Pdpe.u & RT_BIT(9) ? '1' : '0',
3177	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3178	Pdpe.u & RT_BIT(11) ? '1' : '0',
3179	Pdpe.u & X86_PDPE_PG_MASK);
3180	else
3181	pHlp->pfnPrintf(pHlp, /P G WT CD AT NX 4M a p ? /
3182	"%08x 0 \| P %c %s %s %s %s .. %c%c%c %016llx\n",
3183	i << X86_PDPT_SHIFT,
3184	Pdpe.n.u4Reserved & 1? '!' : '.', /* mbz */
3185	Pdpe.n.u4Reserved & 4? '!' : '.', /* mbz */
3186	Pdpe.n.u1WriteThru ? "WT" : "--",
3187	Pdpe.n.u1CacheDisable? "CD" : "--",
3188	Pdpe.n.u4Reserved & 2? "!" : "..",/* mbz */
3189	Pdpe.u & RT_BIT(9) ? '1' : '0',
3190	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3191	Pdpe.u & RT_BIT(11) ? '1' : '0',
3192	Pdpe.u & X86_PDPE_PG_MASK);
3193	if (cMaxDepth >= 1)
3194	{
3195	int rc2 = pgmR3DumpHierarchyHCPaePD(pVM, Pdpe.u & X86_PDPE_PG_MASK, u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
3196	cr4, fLongMode, cMaxDepth - 1, pHlp);
3197	if (rc2 < rc && VBOX_SUCCESS(rc))
3198	rc = rc2;
3199	}
3200	}
3201	}
3202	return rc;
3203	}
3204
3205
3206	/**
3207	* Dumps a 32-bit shadow page table.
3208	*
3209	* @returns VBox status code (VINF_SUCCESS).
3210	* @param pVM The VM handle.
3211	* @param HCPhys The physical address of the table.
3212	* @param cr4 The CR4, PSE is currently used.
3213	* @param cMaxDepth The maxium depth.
3214	* @param pHlp Pointer to the output functions.
3215	*/
3216	static int pgmR3DumpHierarchyHcPaePML4(PVM pVM, RTHCPHYS HCPhys, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3217	{
3218	PX86PML4 pPML4 = (PX86PML4)MMPagePhys2Page(pVM, HCPhys);
3219	if (!pPML4)
3220	{
3221	pHlp->pfnPrintf(pHlp, "Page map level 4 at HCPhys=%#VHp was not found in the page pool!\n", HCPhys);
3222	return VERR_INVALID_PARAMETER;
3223	}
3224
3225	int rc = VINF_SUCCESS;
3226	for (unsigned i = 0; i < ELEMENTS(pPML4->a); i++)
3227	{
3228	X86PML4E Pml4e = pPML4->a[i];
3229	if (Pml4e.n.u1Present)
3230	{
3231	uint64_t u64Address = ((uint64_t)i << X86_PML4_SHIFT) \| (((uint64_t)i >> (X86_PML4_SHIFT - X86_PDPT_SHIFT - 1)) * 0xffff000000000000ULL);
3232	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
3233	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
3234	u64Address,
3235	Pml4e.n.u1Write ? 'W' : 'R',
3236	Pml4e.n.u1User ? 'U' : 'S',
3237	Pml4e.n.u1Accessed ? 'A' : '-',
3238	Pml4e.n.u3Reserved & 1? '?' : '.', /* ignored */
3239	Pml4e.n.u3Reserved & 4? '!' : '.', /* mbz */
3240	Pml4e.n.u1WriteThru ? "WT" : "--",
3241	Pml4e.n.u1CacheDisable? "CD" : "--",
3242	Pml4e.n.u3Reserved & 2? "!" : "..",/* mbz */
3243	Pml4e.n.u1NoExecute ? "NX" : "--",
3244	Pml4e.u & RT_BIT(9) ? '1' : '0',
3245	Pml4e.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3246	Pml4e.u & RT_BIT(11) ? '1' : '0',
3247	Pml4e.u & X86_PML4E_PG_MASK);
3248
3249	if (cMaxDepth >= 1)
3250	{
3251	int rc2 = pgmR3DumpHierarchyHCPaePDPT(pVM, Pml4e.u & X86_PML4E_PG_MASK, u64Address, cr4, true, cMaxDepth - 1, pHlp);
3252	if (rc2 < rc && VBOX_SUCCESS(rc))
3253	rc = rc2;
3254	}
3255	}
3256	}
3257	return rc;
3258	}
3259
3260
3261	/**
3262	* Dumps a 32-bit shadow page table.
3263	*
3264	* @returns VBox status code (VINF_SUCCESS).
3265	* @param pVM The VM handle.
3266	* @param pPT Pointer to the page table.
3267	* @param u32Address The virtual address this table starts at.
3268	* @param pHlp Pointer to the output functions.
3269	*/
3270	int pgmR3DumpHierarchyHC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, PCDBGFINFOHLP pHlp)
3271	{
3272	for (unsigned i = 0; i < ELEMENTS(pPT->a); i++)
3273	{
3274	X86PTE Pte = pPT->a[i];
3275	if (Pte.n.u1Present)
3276	{
3277	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3278	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
3279	u32Address + (i << X86_PT_SHIFT),
3280	Pte.n.u1Write ? 'W' : 'R',
3281	Pte.n.u1User ? 'U' : 'S',
3282	Pte.n.u1Accessed ? 'A' : '-',
3283	Pte.n.u1Dirty ? 'D' : '-',
3284	Pte.n.u1Global ? 'G' : '-',
3285	Pte.n.u1WriteThru ? "WT" : "--",
3286	Pte.n.u1CacheDisable? "CD" : "--",
3287	Pte.n.u1PAT ? "AT" : "--",
3288	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3289	Pte.u & RT_BIT(10) ? '1' : '0',
3290	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
3291	Pte.u & X86_PDE_PG_MASK);
3292	}
3293	}
3294	return VINF_SUCCESS;
3295	}
3296
3297
3298	/**
3299	* Dumps a 32-bit shadow page directory and page tables.
3300	*
3301	* @returns VBox status code (VINF_SUCCESS).
3302	* @param pVM The VM handle.
3303	* @param cr3 The root of the hierarchy.
3304	* @param cr4 The CR4, PSE is currently used.
3305	* @param cMaxDepth How deep into the hierarchy the dumper should go.
3306	* @param pHlp Pointer to the output functions.
3307	*/
3308	int pgmR3DumpHierarchyHC32BitPD(PVM pVM, uint32_t cr3, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3309	{
3310	PX86PD pPD = (PX86PD)MMPagePhys2Page(pVM, cr3 & X86_CR3_PAGE_MASK);
3311	if (!pPD)
3312	{
3313	pHlp->pfnPrintf(pHlp, "Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK);
3314	return VERR_INVALID_PARAMETER;
3315	}
3316
3317	int rc = VINF_SUCCESS;
3318	for (unsigned i = 0; i < ELEMENTS(pPD->a); i++)
3319	{
3320	X86PDE Pde = pPD->a[i];
3321	if (Pde.n.u1Present)
3322	{
3323	const uint32_t u32Address = i << X86_PD_SHIFT;
3324	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
3325	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3326	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
3327	u32Address,
3328	Pde.b.u1Write ? 'W' : 'R',
3329	Pde.b.u1User ? 'U' : 'S',
3330	Pde.b.u1Accessed ? 'A' : '-',
3331	Pde.b.u1Dirty ? 'D' : '-',
3332	Pde.b.u1Global ? 'G' : '-',
3333	Pde.b.u1WriteThru ? "WT" : "--",
3334	Pde.b.u1CacheDisable? "CD" : "--",
3335	Pde.b.u1PAT ? "AT" : "--",
3336	Pde.u & RT_BIT_64(9) ? '1' : '0',
3337	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3338	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3339	Pde.u & X86_PDE4M_PG_MASK);
3340	else
3341	{
3342	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3343	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
3344	u32Address,
3345	Pde.n.u1Write ? 'W' : 'R',
3346	Pde.n.u1User ? 'U' : 'S',
3347	Pde.n.u1Accessed ? 'A' : '-',
3348	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3349	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3350	Pde.n.u1WriteThru ? "WT" : "--",
3351	Pde.n.u1CacheDisable? "CD" : "--",
3352	Pde.u & RT_BIT_64(9) ? '1' : '0',
3353	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3354	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3355	Pde.u & X86_PDE_PG_MASK);
3356	if (cMaxDepth >= 1)
3357	{
3358	/** @todo what about using the page pool for mapping PTs? */
3359	RTHCPHYS HCPhys = Pde.u & X86_PDE_PG_MASK;
3360	PX86PT pPT = NULL;
3361	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
3362	pPT = (PX86PT)MMPagePhys2Page(pVM, HCPhys);
3363	else
3364	{
3365	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
3366	if (u32Address - pMap->GCPtr < pMap->cb)
3367	{
3368	int iPDE = (u32Address - pMap->GCPtr) >> X86_PD_SHIFT;
3369	if (pMap->aPTs[iPDE].HCPhysPT != HCPhys)
3370	pHlp->pfnPrintf(pHlp, "%08x error! Mapping error! PT %d has HCPhysPT=%VHp not %VHp is in the PD.\n",
3371	u32Address, iPDE, pMap->aPTs[iPDE].HCPhysPT, HCPhys);
3372	pPT = pMap->aPTs[iPDE].pPTR3;
3373	}
3374	}
3375	int rc2 = VERR_INVALID_PARAMETER;
3376	if (pPT)
3377	rc2 = pgmR3DumpHierarchyHC32BitPT(pVM, pPT, u32Address, pHlp);
3378	else
3379	pHlp->pfnPrintf(pHlp, "%08x error! Page table at %#x was not found in the page pool!\n", u32Address, HCPhys);
3380	if (rc2 < rc && VBOX_SUCCESS(rc))
3381	rc = rc2;
3382	}
3383	}
3384	}
3385	}
3386
3387	return rc;
3388	}
3389
3390
3391	/**
3392	* Dumps a 32-bit shadow page table.
3393	*
3394	* @returns VBox status code (VINF_SUCCESS).
3395	* @param pVM The VM handle.
3396	* @param pPT Pointer to the page table.
3397	* @param u32Address The virtual address this table starts at.
3398	* @param PhysSearch Address to search for.
3399	*/
3400	int pgmR3DumpHierarchyGC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, RTGCPHYS PhysSearch)
3401	{
3402	for (unsigned i = 0; i < ELEMENTS(pPT->a); i++)
3403	{
3404	X86PTE Pte = pPT->a[i];
3405	if (Pte.n.u1Present)
3406	{
3407	Log(( /P R S A D G WT CD AT NX 4M a m d /
3408	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
3409	u32Address + (i << X86_PT_SHIFT),
3410	Pte.n.u1Write ? 'W' : 'R',
3411	Pte.n.u1User ? 'U' : 'S',
3412	Pte.n.u1Accessed ? 'A' : '-',
3413	Pte.n.u1Dirty ? 'D' : '-',
3414	Pte.n.u1Global ? 'G' : '-',
3415	Pte.n.u1WriteThru ? "WT" : "--",
3416	Pte.n.u1CacheDisable? "CD" : "--",
3417	Pte.n.u1PAT ? "AT" : "--",
3418	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3419	Pte.u & RT_BIT(10) ? '1' : '0',
3420	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
3421	Pte.u & X86_PDE_PG_MASK));
3422
3423	if ((Pte.u & X86_PDE_PG_MASK) == PhysSearch)
3424	{
3425	uint64_t fPageShw = 0;
3426	RTHCPHYS pPhysHC = 0;
3427
3428	PGMShwGetPage(pVM, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), &fPageShw, &pPhysHC);
3429	Log(("Found %VGp at %VGv -> flags=%llx\n", PhysSearch, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), fPageShw));
3430	}
3431	}
3432	}
3433	return VINF_SUCCESS;
3434	}
3435
3436
3437	/**
3438	* Dumps a 32-bit guest page directory and page tables.
3439	*
3440	* @returns VBox status code (VINF_SUCCESS).
3441	* @param pVM The VM handle.
3442	* @param cr3 The root of the hierarchy.
3443	* @param cr4 The CR4, PSE is currently used.
3444	* @param PhysSearch Address to search for.
3445	*/
3446	PGMR3DECL(int) PGMR3DumpHierarchyGC(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCPHYS PhysSearch)
3447	{
3448	bool fLongMode = false;
3449	const unsigned cch = fLongMode ? 16 : 8; NOREF(cch);
3450	PX86PD pPD = 0;
3451
3452	int rc = PGM_GCPHYS_2_PTR(pVM, cr3 & X86_CR3_PAGE_MASK, &pPD);
3453	if (VBOX_FAILURE(rc) \|\| !pPD)
3454	{
3455	Log(("Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK));
3456	return VERR_INVALID_PARAMETER;
3457	}
3458
3459	Log(("cr3=%08x cr4=%08x%s\n"
3460	"%-*s P - Present\n"
3461	"%-*s \| R/W - Read (0) / Write (1)\n"
3462	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
3463	"%-*s \| \| \| A - Accessed\n"
3464	"%-*s \| \| \| \| D - Dirty\n"
3465	"%-*s \| \| \| \| \| G - Global\n"
3466	"%-*s \| \| \| \| \| \| WT - Write thru\n"
3467	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
3468	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
3469	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
3470	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
3471	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
3472	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
3473	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
3474	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
3475	- W U - - - -- -- -- -- -- 010 */
3476	, cr3, cr4, fLongMode ? " Long Mode" : "",
3477	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
3478	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address"));
3479
3480	for (unsigned i = 0; i < ELEMENTS(pPD->a); i++)
3481	{
3482	X86PDE Pde = pPD->a[i];
3483	if (Pde.n.u1Present)
3484	{
3485	const uint32_t u32Address = i << X86_PD_SHIFT;
3486
3487	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
3488	Log(( /P R S A D G WT CD AT NX 4M a m d /
3489	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
3490	u32Address,
3491	Pde.b.u1Write ? 'W' : 'R',
3492	Pde.b.u1User ? 'U' : 'S',
3493	Pde.b.u1Accessed ? 'A' : '-',
3494	Pde.b.u1Dirty ? 'D' : '-',
3495	Pde.b.u1Global ? 'G' : '-',
3496	Pde.b.u1WriteThru ? "WT" : "--",
3497	Pde.b.u1CacheDisable? "CD" : "--",
3498	Pde.b.u1PAT ? "AT" : "--",
3499	Pde.u & RT_BIT(9) ? '1' : '0',
3500	Pde.u & RT_BIT(10) ? '1' : '0',
3501	Pde.u & RT_BIT(11) ? '1' : '0',
3502	Pde.u & X86_PDE4M_PG_MASK));
3503	/** @todo PhysSearch */
3504	else
3505	{
3506	Log(( /P R S A D G WT CD AT NX 4M a m d /
3507	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
3508	u32Address,
3509	Pde.n.u1Write ? 'W' : 'R',
3510	Pde.n.u1User ? 'U' : 'S',
3511	Pde.n.u1Accessed ? 'A' : '-',
3512	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3513	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3514	Pde.n.u1WriteThru ? "WT" : "--",
3515	Pde.n.u1CacheDisable? "CD" : "--",
3516	Pde.u & RT_BIT(9) ? '1' : '0',
3517	Pde.u & RT_BIT(10) ? '1' : '0',
3518	Pde.u & RT_BIT(11) ? '1' : '0',
3519	Pde.u & X86_PDE_PG_MASK));
3520	////if (cMaxDepth >= 1)
3521	{
3522	/** @todo what about using the page pool for mapping PTs? */
3523	RTGCPHYS GCPhys = Pde.u & X86_PDE_PG_MASK;
3524	PX86PT pPT = NULL;
3525
3526	rc = PGM_GCPHYS_2_PTR(pVM, GCPhys, &pPT);
3527
3528	int rc2 = VERR_INVALID_PARAMETER;
3529	if (pPT)
3530	rc2 = pgmR3DumpHierarchyGC32BitPT(pVM, pPT, u32Address, PhysSearch);
3531	else
3532	Log(("%08x error! Page table at %#x was not found in the page pool!\n", u32Address, GCPhys));
3533	if (rc2 < rc && VBOX_SUCCESS(rc))
3534	rc = rc2;
3535	}
3536	}
3537	}
3538	}
3539
3540	return rc;
3541	}
3542
3543
3544	/**
3545	* Dumps a page table hierarchy use only physical addresses and cr4/lm flags.
3546	*
3547	* @returns VBox status code (VINF_SUCCESS).
3548	* @param pVM The VM handle.
3549	* @param cr3 The root of the hierarchy.
3550	* @param cr4 The cr4, only PAE and PSE is currently used.
3551	* @param fLongMode Set if long mode, false if not long mode.
3552	* @param cMaxDepth Number of levels to dump.
3553	* @param pHlp Pointer to the output functions.
3554	*/
3555	PGMR3DECL(int) PGMR3DumpHierarchyHC(PVM pVM, uint64_t cr3, uint64_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3556	{
3557	if (!pHlp)
3558	pHlp = DBGFR3InfoLogHlp();
3559	if (!cMaxDepth)
3560	return VINF_SUCCESS;
3561	const unsigned cch = fLongMode ? 16 : 8;
3562	pHlp->pfnPrintf(pHlp,
3563	"cr3=%08x cr4=%08x%s\n"
3564	"%-*s P - Present\n"
3565	"%-*s \| R/W - Read (0) / Write (1)\n"
3566	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
3567	"%-*s \| \| \| A - Accessed\n"
3568	"%-*s \| \| \| \| D - Dirty\n"
3569	"%-*s \| \| \| \| \| G - Global\n"
3570	"%-*s \| \| \| \| \| \| WT - Write thru\n"
3571	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
3572	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
3573	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
3574	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
3575	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
3576	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
3577	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
3578	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
3579	- W U - - - -- -- -- -- -- 010 */
3580	, cr3, cr4, fLongMode ? " Long Mode" : "",
3581	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
3582	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
3583	if (cr4 & X86_CR4_PAE)
3584	{
3585	if (fLongMode)
3586	return pgmR3DumpHierarchyHcPaePML4(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
3587	return pgmR3DumpHierarchyHCPaePDPT(pVM, cr3 & X86_CR3_PAE_PAGE_MASK, 0, cr4, false, cMaxDepth, pHlp);
3588	}
3589	return pgmR3DumpHierarchyHC32BitPD(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
3590	}
3591
3592
3593
3594	#ifdef VBOX_WITH_DEBUGGER
3595	/**
3596	* The '.pgmram' command.
3597	*
3598	* @returns VBox status.
3599	* @param pCmd Pointer to the command descriptor (as registered).
3600	* @param pCmdHlp Pointer to command helper functions.
3601	* @param pVM Pointer to the current VM (if any).
3602	* @param paArgs Pointer to (readonly) array of arguments.
3603	* @param cArgs Number of arguments in the array.
3604	*/
3605	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3606	{
3607	/*
3608	* Validate input.
3609	*/
3610	if (!pVM)
3611	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
3612	if (!pVM->pgm.s.pRamRangesGC)
3613	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no Ram is registered.\n");
3614
3615	/*
3616	* Dump the ranges.
3617	*/
3618	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "From - To (incl) pvHC\n");
3619	PPGMRAMRANGE pRam;
3620	for (pRam = pVM->pgm.s.pRamRangesR3; pRam; pRam = pRam->pNextR3)
3621	{
3622	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
3623	"%VGp - %VGp %p\n",
3624	pRam->GCPhys, pRam->GCPhysLast, pRam->pvHC);
3625	if (VBOX_FAILURE(rc))
3626	return rc;
3627	}
3628
3629	return VINF_SUCCESS;
3630	}
3631
3632
3633	/**
3634	* The '.pgmmap' command.
3635	*
3636	* @returns VBox status.
3637	* @param pCmd Pointer to the command descriptor (as registered).
3638	* @param pCmdHlp Pointer to command helper functions.
3639	* @param pVM Pointer to the current VM (if any).
3640	* @param paArgs Pointer to (readonly) array of arguments.
3641	* @param cArgs Number of arguments in the array.
3642	*/
3643	static DECLCALLBACK(int) pgmR3CmdMap(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3644	{
3645	/*
3646	* Validate input.
3647	*/
3648	if (!pVM)
3649	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
3650	if (!pVM->pgm.s.pMappingsR3)
3651	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no mappings are registered.\n");
3652
3653	/*
3654	* Print message about the fixedness of the mappings.
3655	*/
3656	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, pVM->pgm.s.fMappingsFixed ? "The mappings are FIXED.\n" : "The mappings are FLOATING.\n");
3657	if (VBOX_FAILURE(rc))
3658	return rc;
3659
3660	/*
3661	* Dump the ranges.
3662	*/
3663	PPGMMAPPING pCur;
3664	for (pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
3665	{
3666	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
3667	"%08x - %08x %s\n",
3668	pCur->GCPtr, pCur->GCPtrLast, pCur->pszDesc);
3669	if (VBOX_FAILURE(rc))
3670	return rc;
3671	}
3672
3673	return VINF_SUCCESS;
3674	}
3675
3676
3677	/**
3678	* The '.pgmsync' command.
3679	*
3680	* @returns VBox status.
3681	* @param pCmd Pointer to the command descriptor (as registered).
3682	* @param pCmdHlp Pointer to command helper functions.
3683	* @param pVM Pointer to the current VM (if any).
3684	* @param paArgs Pointer to (readonly) array of arguments.
3685	* @param cArgs Number of arguments in the array.
3686	*/
3687	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3688	{
3689	/*
3690	* Validate input.
3691	*/
3692	if (!pVM)
3693	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
3694
3695	/*
3696	* Force page directory sync.
3697	*/
3698	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
3699
3700	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Forcing page directory sync.\n");
3701	if (VBOX_FAILURE(rc))
3702	return rc;
3703
3704	return VINF_SUCCESS;
3705	}
3706
3707
3708	/**
3709	* The '.pgmsyncalways' command.
3710	*
3711	* @returns VBox status.
3712	* @param pCmd Pointer to the command descriptor (as registered).
3713	* @param pCmdHlp Pointer to command helper functions.
3714	* @param pVM Pointer to the current VM (if any).
3715	* @param paArgs Pointer to (readonly) array of arguments.
3716	* @param cArgs Number of arguments in the array.
3717	*/
3718	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
3719	{
3720	/*
3721	* Validate input.
3722	*/
3723	if (!pVM)
3724	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires VM to be selected.\n");
3725
3726	/*
3727	* Force page directory sync.
3728	*/
3729	if (pVM->pgm.s.fSyncFlags & PGM_SYNC_ALWAYS)
3730	{
3731	ASMAtomicAndU32(&pVM->pgm.s.fSyncFlags, ~PGM_SYNC_ALWAYS);
3732	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Disabled permanent forced page directory syncing.\n");
3733	}
3734	else
3735	{
3736	ASMAtomicOrU32(&pVM->pgm.s.fSyncFlags, PGM_SYNC_ALWAYS);
3737	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
3738	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Enabled permanent forced page directory syncing.\n");
3739	}
3740	}
3741
3742	#endif
3743
3744	/**
3745	* pvUser argument of the pgmR3CheckIntegrity*Node callbacks.
3746	*/
3747	typedef struct PGMCHECKINTARGS
3748	{
3749	bool fLeftToRight; /*< true: left-to-right; false: right-to-left. /
3750	PPGMPHYSHANDLER pPrevPhys;
3751	PPGMVIRTHANDLER pPrevVirt;
3752	PPGMPHYS2VIRTHANDLER pPrevPhys2Virt;
3753	PVM pVM;
3754	} PGMCHECKINTARGS, *PPGMCHECKINTARGS;
3755
3756	/**
3757	* Validate a node in the physical handler tree.
3758	*
3759	* @returns 0 on if ok, other wise 1.
3760	* @param pNode The handler node.
3761	* @param pvUser pVM.
3762	*/
3763	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
3764	{
3765	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
3766	PPGMPHYSHANDLER pCur = (PPGMPHYSHANDLER)pNode;
3767	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
3768	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %VGp-%VGp %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
3769	AssertReleaseMsg( !pArgs->pPrevPhys
3770	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys->Core.KeyLast > pCur->Core.Key),
3771	("pPrevPhys=%p %VGp-%VGp %s\n"
3772	" pCur=%p %VGp-%VGp %s\n",
3773	pArgs->pPrevPhys, pArgs->pPrevPhys->Core.Key, pArgs->pPrevPhys->Core.KeyLast, pArgs->pPrevPhys->pszDesc,
3774	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
3775	pArgs->pPrevPhys = pCur;
3776	return 0;
3777	}
3778
3779
3780	/**
3781	* Validate a node in the virtual handler tree.
3782	*
3783	* @returns 0 on if ok, other wise 1.
3784	* @param pNode The handler node.
3785	* @param pvUser pVM.
3786	*/
3787	static DECLCALLBACK(int) pgmR3CheckIntegrityVirtHandlerNode(PAVLROGCPTRNODECORE pNode, void *pvUser)
3788	{
3789	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
3790	PPGMVIRTHANDLER pCur = (PPGMVIRTHANDLER)pNode;
3791	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
3792	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %VGv-%VGv %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
3793	AssertReleaseMsg( !pArgs->pPrevVirt
3794	\|\| (pArgs->fLeftToRight ? pArgs->pPrevVirt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevVirt->Core.KeyLast > pCur->Core.Key),
3795	("pPrevVirt=%p %VGv-%VGv %s\n"
3796	" pCur=%p %VGv-%VGv %s\n",
3797	pArgs->pPrevVirt, pArgs->pPrevVirt->Core.Key, pArgs->pPrevVirt->Core.KeyLast, pArgs->pPrevVirt->pszDesc,
3798	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
3799	for (unsigned iPage = 0; iPage < pCur->cPages; iPage++)
3800	{
3801	AssertReleaseMsg(pCur->aPhysToVirt[iPage].offVirtHandler == -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage]),
3802	("pCur=%p %VGv-%VGv %s\n"
3803	"iPage=%d offVirtHandle=%#x expected %#x\n",
3804	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc,
3805	iPage, pCur->aPhysToVirt[iPage].offVirtHandler, -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage])));
3806	}
3807	pArgs->pPrevVirt = pCur;
3808	return 0;
3809	}
3810
3811
3812	/**
3813	* Validate a node in the virtual handler tree.
3814	*
3815	* @returns 0 on if ok, other wise 1.
3816	* @param pNode The handler node.
3817	* @param pvUser pVM.
3818	*/
3819	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysToVirtHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
3820	{
3821	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
3822	PPGMPHYS2VIRTHANDLER pCur = (PPGMPHYS2VIRTHANDLER)pNode;
3823	AssertReleaseMsgReturn(!((uintptr_t)pCur & 3), ("\n"), 1);
3824	AssertReleaseMsgReturn(!(pCur->offVirtHandler & 3), ("\n"), 1);
3825	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %VGp-%VGp\n", pCur, pCur->Core.Key, pCur->Core.KeyLast));
3826	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
3827	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
3828	("pPrevPhys2Virt=%p %VGp-%VGp\n"
3829	" pCur=%p %VGp-%VGp\n",
3830	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
3831	pCur, pCur->Core.Key, pCur->Core.KeyLast));
3832	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
3833	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
3834	("pPrevPhys2Virt=%p %VGp-%VGp\n"
3835	" pCur=%p %VGp-%VGp\n",
3836	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
3837	pCur, pCur->Core.Key, pCur->Core.KeyLast));
3838	AssertReleaseMsg((pCur->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD),
3839	("pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3840	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
3841	if (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
3842	{
3843	PPGMPHYS2VIRTHANDLER pCur2 = pCur;
3844	for (;;)
3845	{
3846	pCur2 = (PPGMPHYS2VIRTHANDLER)((intptr_t)pCur + (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
3847	AssertReleaseMsg(pCur2 != pCur,
3848	(" pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3849	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
3850	AssertReleaseMsg((pCur2->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == PGMPHYS2VIRTHANDLER_IN_TREE,
3851	(" pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
3852	"pCur2=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3853	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
3854	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
3855	AssertReleaseMsg((pCur2->Core.Key ^ pCur->Core.Key) < PAGE_SIZE,
3856	(" pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
3857	"pCur2=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3858	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
3859	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
3860	AssertReleaseMsg((pCur2->Core.KeyLast ^ pCur->Core.KeyLast) < PAGE_SIZE,
3861	(" pCur=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
3862	"pCur2=%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	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
3865	if (!(pCur2->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
3866	break;
3867	}
3868	}
3869
3870	pArgs->pPrevPhys2Virt = pCur;
3871	return 0;
3872	}
3873
3874
3875	/**
3876	* Perform an integrity check on the PGM component.
3877	*
3878	* @returns VINF_SUCCESS if everything is fine.
3879	* @returns VBox error status after asserting on integrity breach.
3880	* @param pVM The VM handle.
3881	*/
3882	PDMR3DECL(int) PGMR3CheckIntegrity(PVM pVM)
3883	{
3884	AssertReleaseReturn(pVM->pgm.s.offVM, VERR_INTERNAL_ERROR);
3885
3886	/*
3887	* Check the trees.
3888	*/
3889	int cErrors = 0;
3890	const static PGMCHECKINTARGS s_LeftToRight = { true, NULL, NULL, NULL, pVM };
3891	const static PGMCHECKINTARGS s_RightToLeft = { false, NULL, NULL, NULL, pVM };
3892	PGMCHECKINTARGS Args = s_LeftToRight;
3893	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysHandlers, true, pgmR3CheckIntegrityPhysHandlerNode, &Args);
3894	Args = s_RightToLeft;
3895	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysHandlers, false, pgmR3CheckIntegrityPhysHandlerNode, &Args);
3896	Args = s_LeftToRight;
3897	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesHC->VirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
3898	Args = s_RightToLeft;
3899	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesHC->VirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
3900	Args = s_LeftToRight;
3901	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesHC->HyperVirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
3902	Args = s_RightToLeft;
3903	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesHC->HyperVirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
3904	Args = s_LeftToRight;
3905	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysToVirtHandlers, true, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
3906	Args = s_RightToLeft;
3907	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysToVirtHandlers, false, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
3908
3909	return !cErrors ? VINF_SUCCESS : VERR_INTERNAL_ERROR;
3910	}
3911
3912
3913	/**
3914	* Inform PGM if we want all mappings to be put into the shadow page table. (necessary for e.g. VMX)
3915	*
3916	* @returns VBox status code.
3917	* @param pVM VM handle.
3918	* @param fEnable Enable or disable shadow mappings
3919	*/
3920	PGMR3DECL(int) PGMR3ChangeShwPDMappings(PVM pVM, bool fEnable)
3921	{
3922	pVM->pgm.s.fDisableMappings = !fEnable;
3923
3924	uint32_t cb;
3925	int rc = PGMR3MappingsSize(pVM, &cb);
3926	AssertRCReturn(rc, rc);
3927
3928	/* Pretend the mappings are now fixed; to force a refresh of the reserved PDEs. */
3929	rc = PGMR3MappingsFix(pVM, MM_HYPER_AREA_ADDRESS, cb);
3930	AssertRCReturn(rc, rc);
3931
3932	return VINF_SUCCESS;
3933	}

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source: vbox/trunk/src/VBox/VMM/PGM.cpp@ 8889

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