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1	/* $Id: PGM.cpp 28800 2010-04-27 08:22:32Z vboxsync $ */
2	/** @file
3	* PGM - Page Manager and Monitor. (Mixing stuff here, not good?)
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/** @page pg_pgm PGM - The Page Manager and Monitor
20	*
21	* @see grp_pgm,
22	* @ref pg_pgm_pool,
23	* @ref pg_pgm_phys.
24	*
25	*
26	* @section sec_pgm_modes Paging Modes
27	*
28	* There are three memory contexts: Host Context (HC), Guest Context (GC)
29	* and intermediate context. When talking about paging HC can also be refered to
30	* as "host paging", and GC refered to as "shadow paging".
31	*
32	* We define three basic paging modes: 32-bit, PAE and AMD64. The host paging mode
33	* is defined by the host operating system. The mode used in the shadow paging mode
34	* depends on the host paging mode and what the mode the guest is currently in. The
35	* following relation between the two is defined:
36	*
37	* @verbatim
38	Host > 32-bit \| PAE \| AMD64 \|
39	Guest \| \| \| \|
40	==v================================
41	32-bit 32-bit PAE PAE
42	-------\|--------\|--------\|--------\|
43	PAE PAE PAE PAE
44	-------\|--------\|--------\|--------\|
45	AMD64 AMD64 AMD64 AMD64
46	-------\|--------\|--------\|--------\| @endverbatim
47	*
48	* All configuration except those in the diagonal (upper left) are expected to
49	* require special effort from the switcher (i.e. a bit slower).
50	*
51	*
52	*
53	*
54	* @section sec_pgm_shw The Shadow Memory Context
55	*
56	*
57	* [..]
58	*
59	* Because of guest context mappings requires PDPT and PML4 entries to allow
60	* writing on AMD64, the two upper levels will have fixed flags whatever the
61	* guest is thinking of using there. So, when shadowing the PD level we will
62	* calculate the effective flags of PD and all the higher levels. In legacy
63	* PAE mode this only applies to the PWT and PCD bits (the rest are
64	* ignored/reserved/MBZ). We will ignore those bits for the present.
65	*
66	*
67	*
68	* @section sec_pgm_int The Intermediate Memory Context
69	*
70	* The world switch goes thru an intermediate memory context which purpose it is
71	* to provide different mappings of the switcher code. All guest mappings are also
72	* present in this context.
73	*
74	* The switcher code is mapped at the same location as on the host, at an
75	* identity mapped location (physical equals virtual address), and at the
76	* hypervisor location. The identity mapped location is for when the world
77	* switches that involves disabling paging.
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_pgm_phys PGM 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	* - PGMPhysSimpleWriteGCPhys 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 SUPR3PageAlloc(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	* Header Files *
572	*******************************************************************************/
573	#define LOG_GROUP LOG_GROUP_PGM
574	#include <VBox/dbgf.h>
575	#include <VBox/pgm.h>
576	#include <VBox/cpum.h>
577	#include <VBox/iom.h>
578	#include <VBox/sup.h>
579	#include <VBox/mm.h>
580	#include <VBox/em.h>
581	#include <VBox/stam.h>
582	#include <VBox/rem.h>
583	#include <VBox/selm.h>
584	#include <VBox/ssm.h>
585	#include <VBox/hwaccm.h>
586	#include "PGMInternal.h"
587	#include <VBox/vm.h>
588	#include "PGMInline.h"
589
590	#include <VBox/dbg.h>
591	#include <VBox/param.h>
592	#include <VBox/err.h>
593
594	#include <iprt/asm.h>
595	#include <iprt/assert.h>
596	#include <iprt/env.h>
597	#include <iprt/mem.h>
598	#include <iprt/file.h>
599	#include <iprt/string.h>
600	#include <iprt/thread.h>
601
602
603	/*******************************************************************************
604	* Defined Constants And Macros *
605	*******************************************************************************/
606	/** Saved state data unit version for 2.5.x and later. */
607	#define PGM_SAVED_STATE_VERSION 9
608	/** Saved state data unit version for 2.2.2 and later. */
609	#define PGM_SAVED_STATE_VERSION_2_2_2 8
610	/** Saved state data unit version for 2.2.0. */
611	#define PGM_SAVED_STATE_VERSION_RR_DESC 7
612	/** Saved state data unit version. */
613	#define PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE 6
614
615
616	/*******************************************************************************
617	* Internal Functions *
618	*******************************************************************************/
619	static int pgmR3InitPaging(PVM pVM);
620	static void pgmR3InitStats(PVM pVM);
621	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
622	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
623	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
624	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser);
625	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
626	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
627	#ifdef VBOX_STRICT
628	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser);
629	#endif
630	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0);
631	static void pgmR3ModeDataSwitch(PVM pVM, PVMCPU pVCpu, PGMMODE enmShw, PGMMODE enmGst);
632	static PGMMODE pgmR3CalcShadowMode(PVM pVM, PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher);
633
634	#ifdef VBOX_WITH_DEBUGGER
635	/** @todo Convert the first two commands to 'info' items. */
636	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
637	static DECLCALLBACK(int) pgmR3CmdError(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
638	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
639	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
640	# ifdef VBOX_STRICT
641	static DECLCALLBACK(int) pgmR3CmdAssertCR3(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
642	# endif
643	static DECLCALLBACK(int) pgmR3CmdPhysToFile(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
644	#endif
645
646
647	/*******************************************************************************
648	* Global Variables *
649	*******************************************************************************/
650	#ifdef VBOX_WITH_DEBUGGER
651	/** Argument descriptors for '.pgmerror' and '.pgmerroroff'. */
652	static const DBGCVARDESC g_aPgmErrorArgs[] =
653	{
654	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
655	{ 0, 1, DBGCVAR_CAT_STRING, 0, "where", "Error injection location." },
656	};
657
658	static const DBGCVARDESC g_aPgmPhysToFileArgs[] =
659	{
660	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
661	{ 1, 1, DBGCVAR_CAT_STRING, 0, "file", "The file name." },
662	{ 0, 1, DBGCVAR_CAT_STRING, 0, "nozero", "If present, zero pages are skipped." },
663	};
664
665	/** Command descriptors. */
666	static const DBGCCMD g_aCmds[] =
667	{
668	/* pszCmd, cArgsMin, cArgsMax, paArgDesc, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
669	{ "pgmram", 0, 0, NULL, 0, NULL, 0, pgmR3CmdRam, "", "Display the ram ranges." },
670	{ "pgmsync", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSync, "", "Sync the CR3 page." },
671	{ "pgmerror", 0, 1, &g_aPgmErrorArgs[0], 1, NULL, 0, pgmR3CmdError, "", "Enables inject runtime of errors into parts of PGM." },
672	{ "pgmerroroff", 0, 1, &g_aPgmErrorArgs[0], 1, NULL, 0, pgmR3CmdError, "", "Disables inject runtime errors into parts of PGM." },
673	#ifdef VBOX_STRICT
674	{ "pgmassertcr3", 0, 0, NULL, 0, NULL, 0, pgmR3CmdAssertCR3, "", "Check the shadow CR3 mapping." },
675	#endif
676	{ "pgmsyncalways", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSyncAlways, "", "Toggle permanent CR3 syncing." },
677	{ "pgmphystofile", 1, 2, &g_aPgmPhysToFileArgs[0], 2, NULL, 0, pgmR3CmdPhysToFile, "", "Save the physical memory to file." },
678	};
679	#endif
680
681
682
683
684	/*
685	* Shadow - 32-bit mode
686	*/
687	#define PGM_SHW_TYPE PGM_TYPE_32BIT
688	#define PGM_SHW_NAME(name) PGM_SHW_NAME_32BIT(name)
689	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_32BIT_STR(name)
690	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_32BIT_STR(name)
691	#include "PGMShw.h"
692
693	/* Guest - real mode */
694	#define PGM_GST_TYPE PGM_TYPE_REAL
695	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
696	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
697	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
698	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_REAL(name)
699	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_REAL_STR(name)
700	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_REAL_STR(name)
701	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
702	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD_PHYS
703	#include "PGMBth.h"
704	#include "PGMGstDefs.h"
705	#include "PGMGst.h"
706	#undef BTH_PGMPOOLKIND_PT_FOR_PT
707	#undef BTH_PGMPOOLKIND_ROOT
708	#undef PGM_BTH_NAME
709	#undef PGM_BTH_NAME_RC_STR
710	#undef PGM_BTH_NAME_R0_STR
711	#undef PGM_GST_TYPE
712	#undef PGM_GST_NAME
713	#undef PGM_GST_NAME_RC_STR
714	#undef PGM_GST_NAME_R0_STR
715
716	/* Guest - protected mode */
717	#define PGM_GST_TYPE PGM_TYPE_PROT
718	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
719	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
720	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
721	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_PROT(name)
722	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_PROT_STR(name)
723	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_PROT_STR(name)
724	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
725	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD_PHYS
726	#include "PGMBth.h"
727	#include "PGMGstDefs.h"
728	#include "PGMGst.h"
729	#undef BTH_PGMPOOLKIND_PT_FOR_PT
730	#undef BTH_PGMPOOLKIND_ROOT
731	#undef PGM_BTH_NAME
732	#undef PGM_BTH_NAME_RC_STR
733	#undef PGM_BTH_NAME_R0_STR
734	#undef PGM_GST_TYPE
735	#undef PGM_GST_NAME
736	#undef PGM_GST_NAME_RC_STR
737	#undef PGM_GST_NAME_R0_STR
738
739	/* Guest - 32-bit mode */
740	#define PGM_GST_TYPE PGM_TYPE_32BIT
741	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
742	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
743	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
744	#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_32BIT(name)
745	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_32BIT_STR(name)
746	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_32BIT_STR(name)
747	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT
748	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB
749	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD
750	#include "PGMBth.h"
751	#include "PGMGstDefs.h"
752	#include "PGMGst.h"
753	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
754	#undef BTH_PGMPOOLKIND_PT_FOR_PT
755	#undef BTH_PGMPOOLKIND_ROOT
756	#undef PGM_BTH_NAME
757	#undef PGM_BTH_NAME_RC_STR
758	#undef PGM_BTH_NAME_R0_STR
759	#undef PGM_GST_TYPE
760	#undef PGM_GST_NAME
761	#undef PGM_GST_NAME_RC_STR
762	#undef PGM_GST_NAME_R0_STR
763
764	#undef PGM_SHW_TYPE
765	#undef PGM_SHW_NAME
766	#undef PGM_SHW_NAME_RC_STR
767	#undef PGM_SHW_NAME_R0_STR
768
769
770	/*
771	* Shadow - PAE mode
772	*/
773	#define PGM_SHW_TYPE PGM_TYPE_PAE
774	#define PGM_SHW_NAME(name) PGM_SHW_NAME_PAE(name)
775	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_PAE_STR(name)
776	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_PAE_STR(name)
777	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
778	#include "PGMShw.h"
779
780	/* Guest - real mode */
781	#define PGM_GST_TYPE PGM_TYPE_REAL
782	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
783	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
784	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
785	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
786	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_REAL_STR(name)
787	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_REAL_STR(name)
788	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
789	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_PHYS
790	#include "PGMGstDefs.h"
791	#include "PGMBth.h"
792	#undef BTH_PGMPOOLKIND_PT_FOR_PT
793	#undef BTH_PGMPOOLKIND_ROOT
794	#undef PGM_BTH_NAME
795	#undef PGM_BTH_NAME_RC_STR
796	#undef PGM_BTH_NAME_R0_STR
797	#undef PGM_GST_TYPE
798	#undef PGM_GST_NAME
799	#undef PGM_GST_NAME_RC_STR
800	#undef PGM_GST_NAME_R0_STR
801
802	/* Guest - protected mode */
803	#define PGM_GST_TYPE PGM_TYPE_PROT
804	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
805	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
806	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
807	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PROT(name)
808	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_PROT_STR(name)
809	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PROT_STR(name)
810	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
811	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_PHYS
812	#include "PGMGstDefs.h"
813	#include "PGMBth.h"
814	#undef BTH_PGMPOOLKIND_PT_FOR_PT
815	#undef BTH_PGMPOOLKIND_ROOT
816	#undef PGM_BTH_NAME
817	#undef PGM_BTH_NAME_RC_STR
818	#undef PGM_BTH_NAME_R0_STR
819	#undef PGM_GST_TYPE
820	#undef PGM_GST_NAME
821	#undef PGM_GST_NAME_RC_STR
822	#undef PGM_GST_NAME_R0_STR
823
824	/* Guest - 32-bit mode */
825	#define PGM_GST_TYPE PGM_TYPE_32BIT
826	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
827	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
828	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
829	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_32BIT(name)
830	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_32BIT_STR(name)
831	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_32BIT_STR(name)
832	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
833	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
834	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_FOR_32BIT
835	#include "PGMGstDefs.h"
836	#include "PGMBth.h"
837	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
838	#undef BTH_PGMPOOLKIND_PT_FOR_PT
839	#undef BTH_PGMPOOLKIND_ROOT
840	#undef PGM_BTH_NAME
841	#undef PGM_BTH_NAME_RC_STR
842	#undef PGM_BTH_NAME_R0_STR
843	#undef PGM_GST_TYPE
844	#undef PGM_GST_NAME
845	#undef PGM_GST_NAME_RC_STR
846	#undef PGM_GST_NAME_R0_STR
847
848	/* Guest - PAE mode */
849	#define PGM_GST_TYPE PGM_TYPE_PAE
850	#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
851	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
852	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
853	#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PAE(name)
854	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_PAE_STR(name)
855	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PAE_STR(name)
856	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
857	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
858	#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT
859	#include "PGMBth.h"
860	#include "PGMGstDefs.h"
861	#include "PGMGst.h"
862	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
863	#undef BTH_PGMPOOLKIND_PT_FOR_PT
864	#undef BTH_PGMPOOLKIND_ROOT
865	#undef PGM_BTH_NAME
866	#undef PGM_BTH_NAME_RC_STR
867	#undef PGM_BTH_NAME_R0_STR
868	#undef PGM_GST_TYPE
869	#undef PGM_GST_NAME
870	#undef PGM_GST_NAME_RC_STR
871	#undef PGM_GST_NAME_R0_STR
872
873	#undef PGM_SHW_TYPE
874	#undef PGM_SHW_NAME
875	#undef PGM_SHW_NAME_RC_STR
876	#undef PGM_SHW_NAME_R0_STR
877
878
879	/*
880	* Shadow - AMD64 mode
881	*/
882	#define PGM_SHW_TYPE PGM_TYPE_AMD64
883	#define PGM_SHW_NAME(name) PGM_SHW_NAME_AMD64(name)
884	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_AMD64_STR(name)
885	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_AMD64_STR(name)
886	#include "PGMShw.h"
887
888	#ifdef VBOX_WITH_64_BITS_GUESTS
889	/* Guest - AMD64 mode */
890	# define PGM_GST_TYPE PGM_TYPE_AMD64
891	# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
892	# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
893	# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
894	# define PGM_BTH_NAME(name) PGM_BTH_NAME_AMD64_AMD64(name)
895	# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_AMD64_AMD64_STR(name)
896	# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_AMD64_AMD64_STR(name)
897	# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
898	# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
899	# define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_64BIT_PML4
900	# include "PGMBth.h"
901	# include "PGMGstDefs.h"
902	# include "PGMGst.h"
903	# undef BTH_PGMPOOLKIND_PT_FOR_BIG
904	# undef BTH_PGMPOOLKIND_PT_FOR_PT
905	# undef BTH_PGMPOOLKIND_ROOT
906	# undef PGM_BTH_NAME
907	# undef PGM_BTH_NAME_RC_STR
908	# undef PGM_BTH_NAME_R0_STR
909	# undef PGM_GST_TYPE
910	# undef PGM_GST_NAME
911	# undef PGM_GST_NAME_RC_STR
912	# undef PGM_GST_NAME_R0_STR
913	#endif /* VBOX_WITH_64_BITS_GUESTS */
914
915	#undef PGM_SHW_TYPE
916	#undef PGM_SHW_NAME
917	#undef PGM_SHW_NAME_RC_STR
918	#undef PGM_SHW_NAME_R0_STR
919
920
921	/*
922	* Shadow - Nested paging mode
923	*/
924	#define PGM_SHW_TYPE PGM_TYPE_NESTED
925	#define PGM_SHW_NAME(name) PGM_SHW_NAME_NESTED(name)
926	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_NESTED_STR(name)
927	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_NESTED_STR(name)
928	#include "PGMShw.h"
929
930	/* Guest - real mode */
931	#define PGM_GST_TYPE PGM_TYPE_REAL
932	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
933	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
934	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
935	#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_REAL(name)
936	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_REAL_STR(name)
937	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_REAL_STR(name)
938	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
939	#include "PGMGstDefs.h"
940	#include "PGMBth.h"
941	#undef BTH_PGMPOOLKIND_PT_FOR_PT
942	#undef PGM_BTH_NAME
943	#undef PGM_BTH_NAME_RC_STR
944	#undef PGM_BTH_NAME_R0_STR
945	#undef PGM_GST_TYPE
946	#undef PGM_GST_NAME
947	#undef PGM_GST_NAME_RC_STR
948	#undef PGM_GST_NAME_R0_STR
949
950	/* Guest - protected mode */
951	#define PGM_GST_TYPE PGM_TYPE_PROT
952	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
953	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
954	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
955	#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_PROT(name)
956	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_PROT_STR(name)
957	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_PROT_STR(name)
958	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
959	#include "PGMGstDefs.h"
960	#include "PGMBth.h"
961	#undef BTH_PGMPOOLKIND_PT_FOR_PT
962	#undef PGM_BTH_NAME
963	#undef PGM_BTH_NAME_RC_STR
964	#undef PGM_BTH_NAME_R0_STR
965	#undef PGM_GST_TYPE
966	#undef PGM_GST_NAME
967	#undef PGM_GST_NAME_RC_STR
968	#undef PGM_GST_NAME_R0_STR
969
970	/* Guest - 32-bit mode */
971	#define PGM_GST_TYPE PGM_TYPE_32BIT
972	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
973	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
974	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
975	#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_32BIT(name)
976	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_32BIT_STR(name)
977	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_32BIT_STR(name)
978	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
979	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
980	#include "PGMGstDefs.h"
981	#include "PGMBth.h"
982	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
983	#undef BTH_PGMPOOLKIND_PT_FOR_PT
984	#undef PGM_BTH_NAME
985	#undef PGM_BTH_NAME_RC_STR
986	#undef PGM_BTH_NAME_R0_STR
987	#undef PGM_GST_TYPE
988	#undef PGM_GST_NAME
989	#undef PGM_GST_NAME_RC_STR
990	#undef PGM_GST_NAME_R0_STR
991
992	/* Guest - PAE mode */
993	#define PGM_GST_TYPE PGM_TYPE_PAE
994	#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
995	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
996	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
997	#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_PAE(name)
998	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_PAE_STR(name)
999	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_PAE_STR(name)
1000	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
1001	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
1002	#include "PGMGstDefs.h"
1003	#include "PGMBth.h"
1004	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
1005	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1006	#undef PGM_BTH_NAME
1007	#undef PGM_BTH_NAME_RC_STR
1008	#undef PGM_BTH_NAME_R0_STR
1009	#undef PGM_GST_TYPE
1010	#undef PGM_GST_NAME
1011	#undef PGM_GST_NAME_RC_STR
1012	#undef PGM_GST_NAME_R0_STR
1013
1014	#ifdef VBOX_WITH_64_BITS_GUESTS
1015	/* Guest - AMD64 mode */
1016	# define PGM_GST_TYPE PGM_TYPE_AMD64
1017	# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
1018	# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
1019	# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
1020	# define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_AMD64(name)
1021	# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_AMD64_STR(name)
1022	# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_AMD64_STR(name)
1023	# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
1024	# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
1025	# include "PGMGstDefs.h"
1026	# include "PGMBth.h"
1027	# undef BTH_PGMPOOLKIND_PT_FOR_BIG
1028	# undef BTH_PGMPOOLKIND_PT_FOR_PT
1029	# undef PGM_BTH_NAME
1030	# undef PGM_BTH_NAME_RC_STR
1031	# undef PGM_BTH_NAME_R0_STR
1032	# undef PGM_GST_TYPE
1033	# undef PGM_GST_NAME
1034	# undef PGM_GST_NAME_RC_STR
1035	# undef PGM_GST_NAME_R0_STR
1036	#endif /* VBOX_WITH_64_BITS_GUESTS */
1037
1038	#undef PGM_SHW_TYPE
1039	#undef PGM_SHW_NAME
1040	#undef PGM_SHW_NAME_RC_STR
1041	#undef PGM_SHW_NAME_R0_STR
1042
1043
1044	/*
1045	* Shadow - EPT
1046	*/
1047	#define PGM_SHW_TYPE PGM_TYPE_EPT
1048	#define PGM_SHW_NAME(name) PGM_SHW_NAME_EPT(name)
1049	#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_EPT_STR(name)
1050	#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_EPT_STR(name)
1051	#include "PGMShw.h"
1052
1053	/* Guest - real mode */
1054	#define PGM_GST_TYPE PGM_TYPE_REAL
1055	#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
1056	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
1057	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
1058	#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_REAL(name)
1059	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_REAL_STR(name)
1060	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_REAL_STR(name)
1061	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
1062	#include "PGMGstDefs.h"
1063	#include "PGMBth.h"
1064	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1065	#undef PGM_BTH_NAME
1066	#undef PGM_BTH_NAME_RC_STR
1067	#undef PGM_BTH_NAME_R0_STR
1068	#undef PGM_GST_TYPE
1069	#undef PGM_GST_NAME
1070	#undef PGM_GST_NAME_RC_STR
1071	#undef PGM_GST_NAME_R0_STR
1072
1073	/* Guest - protected mode */
1074	#define PGM_GST_TYPE PGM_TYPE_PROT
1075	#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
1076	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
1077	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
1078	#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_PROT(name)
1079	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_PROT_STR(name)
1080	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_PROT_STR(name)
1081	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
1082	#include "PGMGstDefs.h"
1083	#include "PGMBth.h"
1084	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1085	#undef PGM_BTH_NAME
1086	#undef PGM_BTH_NAME_RC_STR
1087	#undef PGM_BTH_NAME_R0_STR
1088	#undef PGM_GST_TYPE
1089	#undef PGM_GST_NAME
1090	#undef PGM_GST_NAME_RC_STR
1091	#undef PGM_GST_NAME_R0_STR
1092
1093	/* Guest - 32-bit mode */
1094	#define PGM_GST_TYPE PGM_TYPE_32BIT
1095	#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
1096	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
1097	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
1098	#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_32BIT(name)
1099	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_32BIT_STR(name)
1100	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_32BIT_STR(name)
1101	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
1102	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
1103	#include "PGMGstDefs.h"
1104	#include "PGMBth.h"
1105	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
1106	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1107	#undef PGM_BTH_NAME
1108	#undef PGM_BTH_NAME_RC_STR
1109	#undef PGM_BTH_NAME_R0_STR
1110	#undef PGM_GST_TYPE
1111	#undef PGM_GST_NAME
1112	#undef PGM_GST_NAME_RC_STR
1113	#undef PGM_GST_NAME_R0_STR
1114
1115	/* Guest - PAE mode */
1116	#define PGM_GST_TYPE PGM_TYPE_PAE
1117	#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
1118	#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
1119	#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
1120	#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_PAE(name)
1121	#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_PAE_STR(name)
1122	#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_PAE_STR(name)
1123	#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
1124	#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
1125	#include "PGMGstDefs.h"
1126	#include "PGMBth.h"
1127	#undef BTH_PGMPOOLKIND_PT_FOR_BIG
1128	#undef BTH_PGMPOOLKIND_PT_FOR_PT
1129	#undef PGM_BTH_NAME
1130	#undef PGM_BTH_NAME_RC_STR
1131	#undef PGM_BTH_NAME_R0_STR
1132	#undef PGM_GST_TYPE
1133	#undef PGM_GST_NAME
1134	#undef PGM_GST_NAME_RC_STR
1135	#undef PGM_GST_NAME_R0_STR
1136
1137	#ifdef VBOX_WITH_64_BITS_GUESTS
1138	/* Guest - AMD64 mode */
1139	# define PGM_GST_TYPE PGM_TYPE_AMD64
1140	# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
1141	# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
1142	# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
1143	# define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_AMD64(name)
1144	# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_AMD64_STR(name)
1145	# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_AMD64_STR(name)
1146	# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
1147	# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
1148	# include "PGMGstDefs.h"
1149	# include "PGMBth.h"
1150	# undef BTH_PGMPOOLKIND_PT_FOR_BIG
1151	# undef BTH_PGMPOOLKIND_PT_FOR_PT
1152	# undef PGM_BTH_NAME
1153	# undef PGM_BTH_NAME_RC_STR
1154	# undef PGM_BTH_NAME_R0_STR
1155	# undef PGM_GST_TYPE
1156	# undef PGM_GST_NAME
1157	# undef PGM_GST_NAME_RC_STR
1158	# undef PGM_GST_NAME_R0_STR
1159	#endif /* VBOX_WITH_64_BITS_GUESTS */
1160
1161	#undef PGM_SHW_TYPE
1162	#undef PGM_SHW_NAME
1163	#undef PGM_SHW_NAME_RC_STR
1164	#undef PGM_SHW_NAME_R0_STR
1165
1166
1167
1168	/**
1169	* Initiates the paging of VM.
1170	*
1171	* @returns VBox status code.
1172	* @param pVM Pointer to VM structure.
1173	*/
1174	VMMR3DECL(int) PGMR3Init(PVM pVM)
1175	{
1176	LogFlow(("PGMR3Init:\n"));
1177	PCFGMNODE pCfgPGM = CFGMR3GetChild(CFGMR3GetRoot(pVM), "/PGM");
1178	int rc;
1179
1180	/*
1181	* Assert alignment and sizes.
1182	*/
1183	AssertCompile(sizeof(pVM->pgm.s) <= sizeof(pVM->pgm.padding));
1184	AssertCompile(sizeof(pVM->aCpus[0].pgm.s) <= sizeof(pVM->aCpus[0].pgm.padding));
1185	AssertCompileMemberAlignment(PGM, CritSect, sizeof(uintptr_t));
1186
1187	/*
1188	* Init the structure.
1189	*/
1190	#ifdef PGM_WITHOUT_MAPPINGS
1191	pVM->pgm.s.fMappingsDisabled = true;
1192	#endif
1193	pVM->pgm.s.offVM = RT_OFFSETOF(VM, pgm.s);
1194	pVM->pgm.s.offVCpuPGM = RT_OFFSETOF(VMCPU, pgm.s);
1195
1196	/* Init the per-CPU part. */
1197	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1198	{
1199	PVMCPU pVCpu = &pVM->aCpus[idCpu];
1200	PPGMCPU pPGM = &pVCpu->pgm.s;
1201
1202	pPGM->offVM = (uintptr_t)&pVCpu->pgm.s - (uintptr_t)pVM;
1203	pPGM->offVCpu = RT_OFFSETOF(VMCPU, pgm.s);
1204	pPGM->offPGM = (uintptr_t)&pVCpu->pgm.s - (uintptr_t)&pVM->pgm.s;
1205
1206	pPGM->enmShadowMode = PGMMODE_INVALID;
1207	pPGM->enmGuestMode = PGMMODE_INVALID;
1208
1209	pPGM->GCPhysCR3 = NIL_RTGCPHYS;
1210
1211	pPGM->pGstPaePdptR3 = NULL;
1212	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
1213	pPGM->pGstPaePdptR0 = NIL_RTR0PTR;
1214	#endif
1215	pPGM->pGstPaePdptRC = NIL_RTRCPTR;
1216	for (unsigned i = 0; i < RT_ELEMENTS(pVCpu->pgm.s.apGstPaePDsR3); i++)
1217	{
1218	pPGM->apGstPaePDsR3[i] = NULL;
1219	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
1220	pPGM->apGstPaePDsR0[i] = NIL_RTR0PTR;
1221	#endif
1222	pPGM->apGstPaePDsRC[i] = NIL_RTRCPTR;
1223	pPGM->aGCPhysGstPaePDs[i] = NIL_RTGCPHYS;
1224	pPGM->aGCPhysGstPaePDsMonitored[i] = NIL_RTGCPHYS;
1225	}
1226
1227	pPGM->fA20Enabled = true;
1228	}
1229
1230	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
1231	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(32) - 1; /* default; checked later */
1232	pVM->pgm.s.GCPtrPrevRamRangeMapping = MM_HYPER_AREA_ADDRESS;
1233
1234	rc = CFGMR3QueryBoolDef(CFGMR3GetRoot(pVM), "RamPreAlloc", &pVM->pgm.s.fRamPreAlloc,
1235	#ifdef VBOX_WITH_PREALLOC_RAM_BY_DEFAULT
1236	true
1237	#else
1238	false
1239	#endif
1240	);
1241	AssertLogRelRCReturn(rc, rc);
1242
1243	#if HC_ARCH_BITS == 64 \|\| 1 /** @todo 4GB/32-bit: remove \|\| 1 later and adjust the limit. */
1244	rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, UINT32_MAX);
1245	#else
1246	rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, _1G / GMM_CHUNK_SIZE);
1247	#endif
1248	AssertLogRelRCReturn(rc, rc);
1249	for (uint32_t i = 0; i < RT_ELEMENTS(pVM->pgm.s.ChunkR3Map.Tlb.aEntries); i++)
1250	pVM->pgm.s.ChunkR3Map.Tlb.aEntries[i].idChunk = NIL_GMM_CHUNKID;
1251
1252	/*
1253	* Get the configured RAM size - to estimate saved state size.
1254	*/
1255	uint64_t cbRam;
1256	rc = CFGMR3QueryU64(CFGMR3GetRoot(pVM), "RamSize", &cbRam);
1257	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1258	cbRam = 0;
1259	else if (RT_SUCCESS(rc))
1260	{
1261	if (cbRam < PAGE_SIZE)
1262	cbRam = 0;
1263	cbRam = RT_ALIGN_64(cbRam, PAGE_SIZE);
1264	}
1265	else
1266	{
1267	AssertMsgFailed(("Configuration error: Failed to query integer \"RamSize\", rc=%Rrc.\n", rc));
1268	return rc;
1269	}
1270
1271	/*
1272	* Register callbacks, string formatters and the saved state data unit.
1273	*/
1274	#ifdef VBOX_STRICT
1275	VMR3AtStateRegister(pVM, pgmR3ResetNoMorePhysWritesFlag, NULL);
1276	#endif
1277	PGMRegisterStringFormatTypes();
1278
1279	rc = pgmR3InitSavedState(pVM, cbRam);
1280	if (RT_FAILURE(rc))
1281	return rc;
1282
1283	/*
1284	* Initialize the PGM critical section and flush the phys TLBs
1285	*/
1286	rc = PDMR3CritSectInit(pVM, &pVM->pgm.s.CritSect, RT_SRC_POS, "PGM");
1287	AssertRCReturn(rc, rc);
1288
1289	PGMR3PhysChunkInvalidateTLB(pVM);
1290	PGMPhysInvalidatePageMapTLB(pVM);
1291
1292	/*
1293	* For the time being we sport a full set of handy pages in addition to the base
1294	* memory to simplify things.
1295	*/
1296	rc = MMR3ReserveHandyPages(pVM, RT_ELEMENTS(pVM->pgm.s.aHandyPages)); /** @todo this should be changed to PGM_HANDY_PAGES_MIN but this needs proper testing... */
1297	AssertRCReturn(rc, rc);
1298
1299	/*
1300	* Trees
1301	*/
1302	rc = MMHyperAlloc(pVM, sizeof(PGMTREES), 0, MM_TAG_PGM, (void **)&pVM->pgm.s.pTreesR3);
1303	if (RT_SUCCESS(rc))
1304	{
1305	pVM->pgm.s.pTreesR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pTreesR3);
1306	pVM->pgm.s.pTreesRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pTreesR3);
1307
1308	/*
1309	* Alocate the zero page.
1310	*/
1311	rc = MMHyperAlloc(pVM, PAGE_SIZE, PAGE_SIZE, MM_TAG_PGM, &pVM->pgm.s.pvZeroPgR3);
1312	}
1313	if (RT_SUCCESS(rc))
1314	{
1315	pVM->pgm.s.pvZeroPgRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pvZeroPgR3);
1316	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
1317	pVM->pgm.s.HCPhysZeroPg = MMR3HyperHCVirt2HCPhys(pVM, pVM->pgm.s.pvZeroPgR3);
1318	AssertRelease(pVM->pgm.s.HCPhysZeroPg != NIL_RTHCPHYS);
1319
1320	/*
1321	* Init the paging.
1322	*/
1323	rc = pgmR3InitPaging(pVM);
1324	}
1325	if (RT_SUCCESS(rc))
1326	{
1327	/*
1328	* Init the page pool.
1329	*/
1330	rc = pgmR3PoolInit(pVM);
1331	}
1332	if (RT_SUCCESS(rc))
1333	{
1334	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1335	{
1336	PVMCPU pVCpu = &pVM->aCpus[i];
1337	rc = PGMR3ChangeMode(pVM, pVCpu, PGMMODE_REAL);
1338	if (RT_FAILURE(rc))
1339	break;
1340	}
1341	}
1342
1343	if (RT_SUCCESS(rc))
1344	{
1345	/*
1346	* Info & statistics
1347	*/
1348	DBGFR3InfoRegisterInternal(pVM, "mode",
1349	"Shows the current paging mode. "
1350	"Recognizes 'all', 'guest', 'shadow' and 'host' as arguments, defaulting to 'all' if nothing's given.",
1351	pgmR3InfoMode);
1352	DBGFR3InfoRegisterInternal(pVM, "pgmcr3",
1353	"Dumps all the entries in the top level paging table. No arguments.",
1354	pgmR3InfoCr3);
1355	DBGFR3InfoRegisterInternal(pVM, "phys",
1356	"Dumps all the physical address ranges. No arguments.",
1357	pgmR3PhysInfo);
1358	DBGFR3InfoRegisterInternal(pVM, "handlers",
1359	"Dumps physical, virtual and hyper virtual handlers. "
1360	"Pass 'phys', 'virt', 'hyper' as argument if only one kind is wanted."
1361	"Add 'nost' if the statistics are unwanted, use together with 'all' or explicit selection.",
1362	pgmR3InfoHandlers);
1363	DBGFR3InfoRegisterInternal(pVM, "mappings",
1364	"Dumps guest mappings.",
1365	pgmR3MapInfo);
1366
1367	pgmR3InitStats(pVM);
1368
1369	#ifdef VBOX_WITH_DEBUGGER
1370	/*
1371	* Debugger commands.
1372	*/
1373	static bool s_fRegisteredCmds = false;
1374	if (!s_fRegisteredCmds)
1375	{
1376	int rc2 = DBGCRegisterCommands(&g_aCmds[0], RT_ELEMENTS(g_aCmds));
1377	if (RT_SUCCESS(rc2))
1378	s_fRegisteredCmds = true;
1379	}
1380	#endif
1381	return VINF_SUCCESS;
1382	}
1383
1384	/* Almost no cleanup necessary, MM frees all memory. */
1385	PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
1386
1387	return rc;
1388	}
1389
1390
1391	/**
1392	* Initializes the per-VCPU PGM.
1393	*
1394	* @returns VBox status code.
1395	* @param pVM The VM to operate on.
1396	*/
1397	VMMR3DECL(int) PGMR3InitCPU(PVM pVM)
1398	{
1399	LogFlow(("PGMR3InitCPU\n"));
1400	return VINF_SUCCESS;
1401	}
1402
1403
1404	/**
1405	* Init paging.
1406	*
1407	* Since we need to check what mode the host is operating in before we can choose
1408	* the right paging functions for the host we have to delay this until R0 has
1409	* been initialized.
1410	*
1411	* @returns VBox status code.
1412	* @param pVM VM handle.
1413	*/
1414	static int pgmR3InitPaging(PVM pVM)
1415	{
1416	/*
1417	* Force a recalculation of modes and switcher so everyone gets notified.
1418	*/
1419	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1420	{
1421	PVMCPU pVCpu = &pVM->aCpus[i];
1422
1423	pVCpu->pgm.s.enmShadowMode = PGMMODE_INVALID;
1424	pVCpu->pgm.s.enmGuestMode = PGMMODE_INVALID;
1425	}
1426
1427	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
1428
1429	/*
1430	* Allocate static mapping space for whatever the cr3 register
1431	* points to and in the case of PAE mode to the 4 PDs.
1432	*/
1433	int rc = MMR3HyperReserve(pVM, PAGE_SIZE * 5, "CR3 mapping", &pVM->pgm.s.GCPtrCR3Mapping);
1434	if (RT_FAILURE(rc))
1435	{
1436	AssertMsgFailed(("Failed to reserve two pages for cr mapping in HMA, rc=%Rrc\n", rc));
1437	return rc;
1438	}
1439	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1440
1441	/*
1442	* Allocate pages for the three possible intermediate contexts
1443	* (AMD64, PAE and plain 32-Bit). We maintain all three contexts
1444	* for the sake of simplicity. The AMD64 uses the PAE for the
1445	* lower levels, making the total number of pages 11 (3 + 7 + 1).
1446	*
1447	* We assume that two page tables will be enought for the core code
1448	* mappings (HC virtual and identity).
1449	*/
1450	pVM->pgm.s.pInterPD = (PX86PD)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.pInterPD, VERR_NO_PAGE_MEMORY);
1451	pVM->pgm.s.apInterPTs[0] = (PX86PT)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.apInterPTs[0], VERR_NO_PAGE_MEMORY);
1452	pVM->pgm.s.apInterPTs[1] = (PX86PT)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.apInterPTs[1], VERR_NO_PAGE_MEMORY);
1453	pVM->pgm.s.apInterPaePTs[0] = (PX86PTPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePTs[0], VERR_NO_PAGE_MEMORY);
1454	pVM->pgm.s.apInterPaePTs[1] = (PX86PTPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePTs[1], VERR_NO_PAGE_MEMORY);
1455	pVM->pgm.s.apInterPaePDs[0] = (PX86PDPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePDs[0], VERR_NO_PAGE_MEMORY);
1456	pVM->pgm.s.apInterPaePDs[1] = (PX86PDPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePDs[1], VERR_NO_PAGE_MEMORY);
1457	pVM->pgm.s.apInterPaePDs[2] = (PX86PDPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePDs[2], VERR_NO_PAGE_MEMORY);
1458	pVM->pgm.s.apInterPaePDs[3] = (PX86PDPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePDs[3], VERR_NO_PAGE_MEMORY);
1459	pVM->pgm.s.pInterPaePDPT = (PX86PDPT)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.pInterPaePDPT, VERR_NO_PAGE_MEMORY);
1460	pVM->pgm.s.pInterPaePDPT64 = (PX86PDPT)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.pInterPaePDPT64, VERR_NO_PAGE_MEMORY);
1461	pVM->pgm.s.pInterPaePML4 = (PX86PML4)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.pInterPaePML4, VERR_NO_PAGE_MEMORY);
1462
1463	pVM->pgm.s.HCPhysInterPD = MMPage2Phys(pVM, pVM->pgm.s.pInterPD);
1464	AssertRelease(pVM->pgm.s.HCPhysInterPD != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPD & PAGE_OFFSET_MASK));
1465	pVM->pgm.s.HCPhysInterPaePDPT = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT);
1466	AssertRelease(pVM->pgm.s.HCPhysInterPaePDPT != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePDPT & PAGE_OFFSET_MASK));
1467	pVM->pgm.s.HCPhysInterPaePML4 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePML4);
1468	AssertRelease(pVM->pgm.s.HCPhysInterPaePML4 != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePML4 & PAGE_OFFSET_MASK) && pVM->pgm.s.HCPhysInterPaePML4 < 0xffffffff);
1469
1470	/*
1471	* Initialize the pages, setting up the PML4 and PDPT for repetitive 4GB action.
1472	*/
1473	ASMMemZeroPage(pVM->pgm.s.pInterPD);
1474	ASMMemZeroPage(pVM->pgm.s.apInterPTs[0]);
1475	ASMMemZeroPage(pVM->pgm.s.apInterPTs[1]);
1476
1477	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[0]);
1478	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[1]);
1479
1480	ASMMemZeroPage(pVM->pgm.s.pInterPaePDPT);
1481	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.apInterPaePDs); i++)
1482	{
1483	ASMMemZeroPage(pVM->pgm.s.apInterPaePDs[i]);
1484	pVM->pgm.s.pInterPaePDPT->a[i].u = X86_PDPE_P \| PGM_PLXFLAGS_PERMANENT
1485	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[i]);
1486	}
1487
1488	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.pInterPaePDPT64->a); i++)
1489	{
1490	const unsigned iPD = i % RT_ELEMENTS(pVM->pgm.s.apInterPaePDs);
1491	pVM->pgm.s.pInterPaePDPT64->a[i].u = X86_PDPE_P \| X86_PDPE_RW \| X86_PDPE_US \| X86_PDPE_A \| PGM_PLXFLAGS_PERMANENT
1492	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[iPD]);
1493	}
1494
1495	RTHCPHYS HCPhysInterPaePDPT64 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64);
1496	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.pInterPaePML4->a); i++)
1497	pVM->pgm.s.pInterPaePML4->a[i].u = X86_PML4E_P \| X86_PML4E_RW \| X86_PML4E_US \| X86_PML4E_A \| PGM_PLXFLAGS_PERMANENT
1498	\| HCPhysInterPaePDPT64;
1499
1500	/*
1501	* Initialize paging workers and mode from current host mode
1502	* and the guest running in real mode.
1503	*/
1504	pVM->pgm.s.enmHostMode = SUPR3GetPagingMode();
1505	switch (pVM->pgm.s.enmHostMode)
1506	{
1507	case SUPPAGINGMODE_32_BIT:
1508	case SUPPAGINGMODE_32_BIT_GLOBAL:
1509	case SUPPAGINGMODE_PAE:
1510	case SUPPAGINGMODE_PAE_GLOBAL:
1511	case SUPPAGINGMODE_PAE_NX:
1512	case SUPPAGINGMODE_PAE_GLOBAL_NX:
1513	break;
1514
1515	case SUPPAGINGMODE_AMD64:
1516	case SUPPAGINGMODE_AMD64_GLOBAL:
1517	case SUPPAGINGMODE_AMD64_NX:
1518	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
1519	#ifndef VBOX_WITH_HYBRID_32BIT_KERNEL
1520	if (ARCH_BITS != 64)
1521	{
1522	AssertMsgFailed(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1523	LogRel(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1524	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1525	}
1526	#endif
1527	break;
1528	default:
1529	AssertMsgFailed(("Host mode %d is not supported\n", pVM->pgm.s.enmHostMode));
1530	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1531	}
1532	rc = pgmR3ModeDataInit(pVM, false /* don't resolve GC and R0 syms yet */);
1533	if (RT_SUCCESS(rc))
1534	{
1535	LogFlow(("pgmR3InitPaging: returns successfully\n"));
1536	#if HC_ARCH_BITS == 64
1537	LogRel(("Debug: HCPhysInterPD=%RHp HCPhysInterPaePDPT=%RHp HCPhysInterPaePML4=%RHp\n",
1538	pVM->pgm.s.HCPhysInterPD, pVM->pgm.s.HCPhysInterPaePDPT, pVM->pgm.s.HCPhysInterPaePML4));
1539	LogRel(("Debug: apInterPTs={%RHp,%RHp} apInterPaePTs={%RHp,%RHp} apInterPaePDs={%RHp,%RHp,%RHp,%RHp} pInterPaePDPT64=%RHp\n",
1540	MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[1]),
1541	MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[1]),
1542	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]),
1543	MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64)));
1544	#endif
1545
1546	return VINF_SUCCESS;
1547	}
1548
1549	LogFlow(("pgmR3InitPaging: returns %Rrc\n", rc));
1550	return rc;
1551	}
1552
1553
1554	/**
1555	* Init statistics
1556	*/
1557	static void pgmR3InitStats(PVM pVM)
1558	{
1559	PPGM pPGM = &pVM->pgm.s;
1560	int rc;
1561
1562	/* Common - misc variables */
1563	STAM_REL_REG(pVM, &pPGM->cAllPages, STAMTYPE_U32, "/PGM/Page/cAllPages", STAMUNIT_COUNT, "The total number of pages.");
1564	STAM_REL_REG(pVM, &pPGM->cPrivatePages, STAMTYPE_U32, "/PGM/Page/cPrivatePages", STAMUNIT_COUNT, "The number of private pages.");
1565	STAM_REL_REG(pVM, &pPGM->cSharedPages, STAMTYPE_U32, "/PGM/Page/cSharedPages", STAMUNIT_COUNT, "The number of shared pages.");
1566	STAM_REL_REG(pVM, &pPGM->cZeroPages, STAMTYPE_U32, "/PGM/Page/cZeroPages", STAMUNIT_COUNT, "The number of zero backed pages.");
1567	STAM_REL_REG(pVM, &pPGM->cPureMmioPages, STAMTYPE_U32, "/PGM/Page/cPureMmioPages", STAMUNIT_COUNT, "The number of pure MMIO pages.");
1568	STAM_REL_REG(pVM, &pPGM->cMonitoredPages, STAMTYPE_U32, "/PGM/Page/cMonitoredPages", STAMUNIT_COUNT, "The number of write monitored pages.");
1569	STAM_REL_REG(pVM, &pPGM->cWrittenToPages, STAMTYPE_U32, "/PGM/Page/cWrittenToPages", STAMUNIT_COUNT, "The number of previously write monitored pages that have been written to.");
1570	STAM_REL_REG(pVM, &pPGM->cWriteLockedPages, STAMTYPE_U32, "/PGM/Page/cWriteLockedPages", STAMUNIT_COUNT, "The number of write(/read) locked pages.");
1571	STAM_REL_REG(pVM, &pPGM->cReadLockedPages, STAMTYPE_U32, "/PGM/Page/cReadLockedPages", STAMUNIT_COUNT, "The number of read (only) locked pages.");
1572	STAM_REL_REG(pVM, &pPGM->cBalloonedPages, STAMTYPE_U32, "/PGM/Page/cBalloonedPages", STAMUNIT_COUNT, "The number of ballooned pages.");
1573	STAM_REL_REG(pVM, &pPGM->cHandyPages, STAMTYPE_U32, "/PGM/Page/cHandyPages", STAMUNIT_COUNT, "The number of handy pages (not included in cAllPages).");
1574	STAM_REL_REG(pVM, &pPGM->cRelocations, STAMTYPE_COUNTER, "/PGM/cRelocations", STAMUNIT_OCCURENCES,"Number of hypervisor relocations.");
1575	STAM_REL_REG(pVM, &pPGM->ChunkR3Map.c, STAMTYPE_U32, "/PGM/ChunkR3Map/c", STAMUNIT_COUNT, "Number of mapped chunks.");
1576	STAM_REL_REG(pVM, &pPGM->ChunkR3Map.cMax, STAMTYPE_U32, "/PGM/ChunkR3Map/cMax", STAMUNIT_COUNT, "Maximum number of mapped chunks.");
1577
1578	STAM_REL_REG(pVM, &pPGM->StatLargePageAlloc, STAMTYPE_COUNTER, "/PGM/LargePage/Alloc", STAMUNIT_OCCURENCES, "The number of large pages we've used.");
1579	STAM_REL_REG(pVM, &pPGM->StatLargePageReused, STAMTYPE_COUNTER, "/PGM/LargePage/Reused", STAMUNIT_OCCURENCES, "The number of times we've reused a large page.");
1580	STAM_REL_REG(pVM, &pPGM->StatLargePageRefused, STAMTYPE_COUNTER, "/PGM/LargePage/Refused", STAMUNIT_OCCURENCES, "The number of times we couldn't use a large page.");
1581	STAM_REL_REG(pVM, &pPGM->StatLargePageRecheck, STAMTYPE_COUNTER, "/PGM/LargePage/Recheck", STAMUNIT_OCCURENCES, "The number of times we've rechecked a disabled large page.");
1582
1583	/* Live save */
1584	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.fActive, STAMTYPE_U8, "/PGM/LiveSave/fActive", STAMUNIT_COUNT, "Active or not.");
1585	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cIgnoredPages, STAMTYPE_U32, "/PGM/LiveSave/cIgnoredPages", STAMUNIT_COUNT, "The number of ignored pages in the RAM ranges (i.e. MMIO, MMIO2 and ROM).");
1586	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cDirtyPagesLong, STAMTYPE_U32, "/PGM/LiveSave/cDirtyPagesLong", STAMUNIT_COUNT, "Longer term dirty page average.");
1587	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cDirtyPagesShort, STAMTYPE_U32, "/PGM/LiveSave/cDirtyPagesShort", STAMUNIT_COUNT, "Short term dirty page average.");
1588	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cPagesPerSecond, STAMTYPE_U32, "/PGM/LiveSave/cPagesPerSecond", STAMUNIT_COUNT, "Pages per second.");
1589	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cSavedPages, STAMTYPE_U64, "/PGM/LiveSave/cSavedPages", STAMUNIT_COUNT, "The total number of saved pages.");
1590	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Ram.cReadyPages, STAMTYPE_U32, "/PGM/LiveSave/Ram/cReadPages", STAMUNIT_COUNT, "RAM: Ready pages.");
1591	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Ram.cDirtyPages, STAMTYPE_U32, "/PGM/LiveSave/Ram/cDirtyPages", STAMUNIT_COUNT, "RAM: Dirty pages.");
1592	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Ram.cZeroPages, STAMTYPE_U32, "/PGM/LiveSave/Ram/cZeroPages", STAMUNIT_COUNT, "RAM: Ready zero pages.");
1593	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Ram.cMonitoredPages, STAMTYPE_U32, "/PGM/LiveSave/Ram/cMonitoredPages", STAMUNIT_COUNT, "RAM: Write monitored pages.");
1594	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Rom.cReadyPages, STAMTYPE_U32, "/PGM/LiveSave/Rom/cReadPages", STAMUNIT_COUNT, "ROM: Ready pages.");
1595	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Rom.cDirtyPages, STAMTYPE_U32, "/PGM/LiveSave/Rom/cDirtyPages", STAMUNIT_COUNT, "ROM: Dirty pages.");
1596	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Rom.cZeroPages, STAMTYPE_U32, "/PGM/LiveSave/Rom/cZeroPages", STAMUNIT_COUNT, "ROM: Ready zero pages.");
1597	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Rom.cMonitoredPages, STAMTYPE_U32, "/PGM/LiveSave/Rom/cMonitoredPages", STAMUNIT_COUNT, "ROM: Write monitored pages.");
1598	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Mmio2.cReadyPages, STAMTYPE_U32, "/PGM/LiveSave/Mmio2/cReadPages", STAMUNIT_COUNT, "MMIO2: Ready pages.");
1599	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Mmio2.cDirtyPages, STAMTYPE_U32, "/PGM/LiveSave/Mmio2/cDirtyPages", STAMUNIT_COUNT, "MMIO2: Dirty pages.");
1600	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Mmio2.cZeroPages, STAMTYPE_U32, "/PGM/LiveSave/Mmio2/cZeroPages", STAMUNIT_COUNT, "MMIO2: Ready zero pages.");
1601	STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Mmio2.cMonitoredPages,STAMTYPE_U32, "/PGM/LiveSave/Mmio2/cMonitoredPages",STAMUNIT_COUNT, "MMIO2: Write monitored pages.");
1602
1603	#ifdef VBOX_WITH_STATISTICS
1604
1605	# define PGM_REG_COUNTER(a, b, c) \
1606	rc = STAMR3RegisterF(pVM, a, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, c, b); \
1607	AssertRC(rc);
1608
1609	# define PGM_REG_COUNTER_BYTES(a, b, c) \
1610	rc = STAMR3RegisterF(pVM, a, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, c, b); \
1611	AssertRC(rc);
1612
1613	# define PGM_REG_PROFILE(a, b, c) \
1614	rc = STAMR3RegisterF(pVM, a, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, c, b); \
1615	AssertRC(rc);
1616
1617	PGM_REG_PROFILE(&pPGM->StatAllocLargePage, "/PGM/LargePage/Prof/Alloc", "Time spent by the host OS for large page allocation.");
1618	PGM_REG_PROFILE(&pPGM->StatClearLargePage, "/PGM/LargePage/Prof/Clear", "Time spent clearing the newly allocated large pages.");
1619	PGM_REG_PROFILE(&pPGM->StatR3IsValidLargePage, "/PGM/LargePage/Prof/R3/IsValid", "pgmPhysIsValidLargePage profiling - R3.");
1620	PGM_REG_PROFILE(&pPGM->StatRZIsValidLargePage, "/PGM/LargePage/Prof/RZ/IsValid", "pgmPhysIsValidLargePage profiling - RZ.");
1621
1622	PGM_REG_COUNTER(&pPGM->StatR3DetectedConflicts, "/PGM/R3/DetectedConflicts", "The number of times PGMR3CheckMappingConflicts() detected a conflict.");
1623	PGM_REG_PROFILE(&pPGM->StatR3ResolveConflict, "/PGM/R3/ResolveConflict", "pgmR3SyncPTResolveConflict() profiling (includes the entire relocation).");
1624	PGM_REG_COUNTER(&pPGM->StatR3PhysRead, "/PGM/R3/Phys/Read", "The number of times PGMPhysRead was called.");
1625	PGM_REG_COUNTER_BYTES(&pPGM->StatR3PhysReadBytes, "/PGM/R3/Phys/Read/Bytes", "The number of bytes read by PGMPhysRead.");
1626	PGM_REG_COUNTER(&pPGM->StatR3PhysWrite, "/PGM/R3/Phys/Write", "The number of times PGMPhysWrite was called.");
1627	PGM_REG_COUNTER_BYTES(&pPGM->StatR3PhysWriteBytes, "/PGM/R3/Phys/Write/Bytes", "The number of bytes written by PGMPhysWrite.");
1628	PGM_REG_COUNTER(&pPGM->StatR3PhysSimpleRead, "/PGM/R3/Phys/Simple/Read", "The number of times PGMPhysSimpleReadGCPtr was called.");
1629	PGM_REG_COUNTER_BYTES(&pPGM->StatR3PhysSimpleReadBytes, "/PGM/R3/Phys/Simple/Read/Bytes", "The number of bytes read by PGMPhysSimpleReadGCPtr.");
1630	PGM_REG_COUNTER(&pPGM->StatR3PhysSimpleWrite, "/PGM/R3/Phys/Simple/Write", "The number of times PGMPhysSimpleWriteGCPtr was called.");
1631	PGM_REG_COUNTER_BYTES(&pPGM->StatR3PhysSimpleWriteBytes, "/PGM/R3/Phys/Simple/Write/Bytes", "The number of bytes written by PGMPhysSimpleWriteGCPtr.");
1632
1633	PGM_REG_COUNTER(&pPGM->StatRZChunkR3MapTlbHits, "/PGM/ChunkR3Map/TlbHitsRZ", "TLB hits.");
1634	PGM_REG_COUNTER(&pPGM->StatRZChunkR3MapTlbMisses, "/PGM/ChunkR3Map/TlbMissesRZ", "TLB misses.");
1635	PGM_REG_COUNTER(&pPGM->StatRZPageMapTlbHits, "/PGM/RZ/Page/MapTlbHits", "TLB hits.");
1636	PGM_REG_COUNTER(&pPGM->StatRZPageMapTlbMisses, "/PGM/RZ/Page/MapTlbMisses", "TLB misses.");
1637	PGM_REG_COUNTER(&pPGM->StatR3ChunkR3MapTlbHits, "/PGM/ChunkR3Map/TlbHitsR3", "TLB hits.");
1638	PGM_REG_COUNTER(&pPGM->StatR3ChunkR3MapTlbMisses, "/PGM/ChunkR3Map/TlbMissesR3", "TLB misses.");
1639	PGM_REG_COUNTER(&pPGM->StatR3PageMapTlbHits, "/PGM/R3/Page/MapTlbHits", "TLB hits.");
1640	PGM_REG_COUNTER(&pPGM->StatR3PageMapTlbMisses, "/PGM/R3/Page/MapTlbMisses", "TLB misses.");
1641	PGM_REG_COUNTER(&pPGM->StatPageMapTlbFlushes, "/PGM/R3/Page/MapTlbFlushes", "TLB flushes (all contexts).");
1642	PGM_REG_COUNTER(&pPGM->StatPageMapTlbFlushEntry, "/PGM/R3/Page/MapTlbFlushEntry", "TLB entry flushes (all contexts).");
1643
1644	PGM_REG_PROFILE(&pPGM->StatRZSyncCR3HandlerVirtualUpdate, "/PGM/RZ/SyncCR3/Handlers/VirtualUpdate", "Profiling of the virtual handler updates.");
1645	PGM_REG_PROFILE(&pPGM->StatRZSyncCR3HandlerVirtualReset, "/PGM/RZ/SyncCR3/Handlers/VirtualReset", "Profiling of the virtual handler resets.");
1646	PGM_REG_PROFILE(&pPGM->StatR3SyncCR3HandlerVirtualUpdate, "/PGM/R3/SyncCR3/Handlers/VirtualUpdate", "Profiling of the virtual handler updates.");
1647	PGM_REG_PROFILE(&pPGM->StatR3SyncCR3HandlerVirtualReset, "/PGM/R3/SyncCR3/Handlers/VirtualReset", "Profiling of the virtual handler resets.");
1648
1649	PGM_REG_COUNTER(&pPGM->StatRZPhysHandlerReset, "/PGM/RZ/PhysHandlerReset", "The number of times PGMHandlerPhysicalReset is called.");
1650	PGM_REG_COUNTER(&pPGM->StatR3PhysHandlerReset, "/PGM/R3/PhysHandlerReset", "The number of times PGMHandlerPhysicalReset is called.");
1651	PGM_REG_PROFILE(&pPGM->StatRZVirtHandlerSearchByPhys, "/PGM/RZ/VirtHandlerSearchByPhys", "Profiling of pgmHandlerVirtualFindByPhysAddr.");
1652	PGM_REG_PROFILE(&pPGM->StatR3VirtHandlerSearchByPhys, "/PGM/R3/VirtHandlerSearchByPhys", "Profiling of pgmHandlerVirtualFindByPhysAddr.");
1653
1654	PGM_REG_COUNTER(&pPGM->StatRZPageReplaceShared, "/PGM/RZ/Page/ReplacedShared", "Times a shared page was replaced.");
1655	PGM_REG_COUNTER(&pPGM->StatRZPageReplaceZero, "/PGM/RZ/Page/ReplacedZero", "Times the zero page was replaced.");
1656	/// @todo PGM_REG_COUNTER(&pPGM->StatRZPageHandyAllocs, "/PGM/RZ/Page/HandyAllocs", "Number of times we've allocated more handy pages.");
1657	PGM_REG_COUNTER(&pPGM->StatR3PageReplaceShared, "/PGM/R3/Page/ReplacedShared", "Times a shared page was replaced.");
1658	PGM_REG_COUNTER(&pPGM->StatR3PageReplaceZero, "/PGM/R3/Page/ReplacedZero", "Times the zero page was replaced.");
1659	/// @todo PGM_REG_COUNTER(&pPGM->StatR3PageHandyAllocs, "/PGM/R3/Page/HandyAllocs", "Number of times we've allocated more handy pages.");
1660
1661	PGM_REG_COUNTER(&pPGM->StatRZPhysRead, "/PGM/RZ/Phys/Read", "The number of times PGMPhysRead was called.");
1662	PGM_REG_COUNTER_BYTES(&pPGM->StatRZPhysReadBytes, "/PGM/RZ/Phys/Read/Bytes", "The number of bytes read by PGMPhysRead.");
1663	PGM_REG_COUNTER(&pPGM->StatRZPhysWrite, "/PGM/RZ/Phys/Write", "The number of times PGMPhysWrite was called.");
1664	PGM_REG_COUNTER_BYTES(&pPGM->StatRZPhysWriteBytes, "/PGM/RZ/Phys/Write/Bytes", "The number of bytes written by PGMPhysWrite.");
1665	PGM_REG_COUNTER(&pPGM->StatRZPhysSimpleRead, "/PGM/RZ/Phys/Simple/Read", "The number of times PGMPhysSimpleReadGCPtr was called.");
1666	PGM_REG_COUNTER_BYTES(&pPGM->StatRZPhysSimpleReadBytes, "/PGM/RZ/Phys/Simple/Read/Bytes", "The number of bytes read by PGMPhysSimpleReadGCPtr.");
1667	PGM_REG_COUNTER(&pPGM->StatRZPhysSimpleWrite, "/PGM/RZ/Phys/Simple/Write", "The number of times PGMPhysSimpleWriteGCPtr was called.");
1668	PGM_REG_COUNTER_BYTES(&pPGM->StatRZPhysSimpleWriteBytes, "/PGM/RZ/Phys/Simple/Write/Bytes", "The number of bytes written by PGMPhysSimpleWriteGCPtr.");
1669
1670	/* GC only: */
1671	PGM_REG_COUNTER(&pPGM->StatRCDynMapCacheHits, "/PGM/RC/DynMapCache/Hits" , "Number of dynamic page mapping cache hits.");
1672	PGM_REG_COUNTER(&pPGM->StatRCDynMapCacheMisses, "/PGM/RC/DynMapCache/Misses" , "Number of dynamic page mapping cache misses.");
1673	PGM_REG_COUNTER(&pPGM->StatRCInvlPgConflict, "/PGM/RC/InvlPgConflict", "Number of times PGMInvalidatePage() detected a mapping conflict.");
1674	PGM_REG_COUNTER(&pPGM->StatRCInvlPgSyncMonCR3, "/PGM/RC/InvlPgSyncMonitorCR3", "Number of times PGMInvalidatePage() ran into PGM_SYNC_MONITOR_CR3.");
1675
1676	PGM_REG_COUNTER(&pPGM->StatRCPhysRead, "/PGM/RC/Phys/Read", "The number of times PGMPhysRead was called.");
1677	PGM_REG_COUNTER_BYTES(&pPGM->StatRCPhysReadBytes, "/PGM/RC/Phys/Read/Bytes", "The number of bytes read by PGMPhysRead.");
1678	PGM_REG_COUNTER(&pPGM->StatRCPhysWrite, "/PGM/RC/Phys/Write", "The number of times PGMPhysWrite was called.");
1679	PGM_REG_COUNTER_BYTES(&pPGM->StatRCPhysWriteBytes, "/PGM/RC/Phys/Write/Bytes", "The number of bytes written by PGMPhysWrite.");
1680	PGM_REG_COUNTER(&pPGM->StatRCPhysSimpleRead, "/PGM/RC/Phys/Simple/Read", "The number of times PGMPhysSimpleReadGCPtr was called.");
1681	PGM_REG_COUNTER_BYTES(&pPGM->StatRCPhysSimpleReadBytes, "/PGM/RC/Phys/Simple/Read/Bytes", "The number of bytes read by PGMPhysSimpleReadGCPtr.");
1682	PGM_REG_COUNTER(&pPGM->StatRCPhysSimpleWrite, "/PGM/RC/Phys/Simple/Write", "The number of times PGMPhysSimpleWriteGCPtr was called.");
1683	PGM_REG_COUNTER_BYTES(&pPGM->StatRCPhysSimpleWriteBytes, "/PGM/RC/Phys/Simple/Write/Bytes", "The number of bytes written by PGMPhysSimpleWriteGCPtr.");
1684
1685	PGM_REG_COUNTER(&pPGM->StatTrackVirgin, "/PGM/Track/Virgin", "The number of first time shadowings");
1686	PGM_REG_COUNTER(&pPGM->StatTrackAliased, "/PGM/Track/Aliased", "The number of times switching to cRef2, i.e. the page is being shadowed by two PTs.");
1687	PGM_REG_COUNTER(&pPGM->StatTrackAliasedMany, "/PGM/Track/AliasedMany", "The number of times we're tracking using cRef2.");
1688	PGM_REG_COUNTER(&pPGM->StatTrackAliasedLots, "/PGM/Track/AliasedLots", "The number of times we're hitting pages which has overflowed cRef2");
1689	PGM_REG_COUNTER(&pPGM->StatTrackOverflows, "/PGM/Track/Overflows", "The number of times the extent list grows too long.");
1690	PGM_REG_COUNTER(&pPGM->StatTrackNoExtentsLeft, "/PGM/Track/NoExtentLeft", "The number of times the extent list was exhausted.");
1691	PGM_REG_PROFILE(&pPGM->StatTrackDeref, "/PGM/Track/Deref", "Profiling of SyncPageWorkerTrackDeref (expensive).");
1692
1693	# undef PGM_REG_COUNTER
1694	# undef PGM_REG_PROFILE
1695	#endif
1696
1697	/*
1698	* Note! The layout below matches the member layout exactly!
1699	*/
1700
1701	/*
1702	* Common - stats
1703	*/
1704	for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
1705	{
1706	PPGMCPU pPgmCpu = &pVM->aCpus[idCpu].pgm.s;
1707
1708	#define PGM_REG_COUNTER(a, b, c) \
1709	rc = STAMR3RegisterF(pVM, a, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, c, b, idCpu); \
1710	AssertRC(rc);
1711	#define PGM_REG_PROFILE(a, b, c) \
1712	rc = STAMR3RegisterF(pVM, a, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, c, b, idCpu); \
1713	AssertRC(rc);
1714
1715	PGM_REG_COUNTER(&pPgmCpu->cGuestModeChanges, "/PGM/CPU%u/cGuestModeChanges", "Number of guest mode changes.");
1716
1717	#ifdef VBOX_WITH_STATISTICS
1718
1719	# if 0 /* rarely useful; leave for debugging. */
1720	for (unsigned j = 0; j < RT_ELEMENTS(pPgmCpu->StatSyncPtPD); j++)
1721	STAMR3RegisterF(pVM, &pPgmCpu->StatSyncPtPD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1722	"The number of SyncPT per PD n.", "/PGM/CPU%u/PDSyncPT/%04X", i, j);
1723	for (unsigned j = 0; j < RT_ELEMENTS(pPgmCpu->StatSyncPagePD); j++)
1724	STAMR3RegisterF(pVM, &pPgmCpu->StatSyncPagePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1725	"The number of SyncPage per PD n.", "/PGM/CPU%u/PDSyncPage/%04X", i, j);
1726	# endif
1727	/* R0 only: */
1728	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapMigrateInvlPg, "/PGM/CPU%u/R0/DynMapMigrateInvlPg", "invlpg count in PGMDynMapMigrateAutoSet.");
1729	PGM_REG_PROFILE(&pPgmCpu->StatR0DynMapGCPageInl, "/PGM/CPU%u/R0/DynMapPageGCPageInl", "Calls to pgmR0DynMapGCPageInlined.");
1730	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapGCPageInlHits, "/PGM/CPU%u/R0/DynMapPageGCPageInl/Hits", "Hash table lookup hits.");
1731	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapGCPageInlMisses, "/PGM/CPU%u/R0/DynMapPageGCPageInl/Misses", "Misses that falls back to code common with PGMDynMapHCPage.");
1732	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapGCPageInlRamHits, "/PGM/CPU%u/R0/DynMapPageGCPageInl/RamHits", "1st ram range hits.");
1733	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapGCPageInlRamMisses, "/PGM/CPU%u/R0/DynMapPageGCPageInl/RamMisses", "1st ram range misses, takes slow path.");
1734	PGM_REG_PROFILE(&pPgmCpu->StatR0DynMapHCPageInl, "/PGM/CPU%u/R0/DynMapPageHCPageInl", "Calls to pgmR0DynMapHCPageInlined.");
1735	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapHCPageInlHits, "/PGM/CPU%u/R0/DynMapPageHCPageInl/Hits", "Hash table lookup hits.");
1736	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapHCPageInlMisses, "/PGM/CPU%u/R0/DynMapPageHCPageInl/Misses", "Misses that falls back to code common with PGMDynMapHCPage.");
1737	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPage, "/PGM/CPU%u/R0/DynMapPage", "Calls to pgmR0DynMapPage");
1738	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSetOptimize, "/PGM/CPU%u/R0/DynMapPage/SetOptimize", "Calls to pgmDynMapOptimizeAutoSet.");
1739	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSetSearchFlushes, "/PGM/CPU%u/R0/DynMapPage/SetSearchFlushes","Set search restorting to subset flushes.");
1740	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSetSearchHits, "/PGM/CPU%u/R0/DynMapPage/SetSearchHits", "Set search hits.");
1741	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSetSearchMisses, "/PGM/CPU%u/R0/DynMapPage/SetSearchMisses", "Set search misses.");
1742	PGM_REG_PROFILE(&pPgmCpu->StatR0DynMapHCPage, "/PGM/CPU%u/R0/DynMapPage/HCPage", "Calls to PGMDynMapHCPage (ring-0).");
1743	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageHits0, "/PGM/CPU%u/R0/DynMapPage/Hits0", "Hits at iPage+0");
1744	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageHits1, "/PGM/CPU%u/R0/DynMapPage/Hits1", "Hits at iPage+1");
1745	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageHits2, "/PGM/CPU%u/R0/DynMapPage/Hits2", "Hits at iPage+2");
1746	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageInvlPg, "/PGM/CPU%u/R0/DynMapPage/InvlPg", "invlpg count in pgmR0DynMapPageSlow.");
1747	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageSlow, "/PGM/CPU%u/R0/DynMapPage/Slow", "Calls to pgmR0DynMapPageSlow - subtract this from pgmR0DynMapPage to get 1st level hits.");
1748	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageSlowLoopHits, "/PGM/CPU%u/R0/DynMapPage/SlowLoopHits" , "Hits in the loop path.");
1749	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageSlowLoopMisses, "/PGM/CPU%u/R0/DynMapPage/SlowLoopMisses", "Misses in the loop path. NonLoopMisses = Slow - SlowLoopHit - SlowLoopMisses");
1750	//PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageSlowLostHits, "/PGM/CPU%u/R0/DynMapPage/SlowLostHits", "Lost hits.");
1751	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSubsets, "/PGM/CPU%u/R0/Subsets", "Times PGMDynMapPushAutoSubset was called.");
1752	PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPopFlushes, "/PGM/CPU%u/R0/SubsetPopFlushes", "Times PGMDynMapPopAutoSubset flushes the subset.");
1753	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[0], "/PGM/CPU%u/R0/SetSize000..09", "00-09% filled");
1754	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[1], "/PGM/CPU%u/R0/SetSize010..19", "10-19% filled");
1755	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[2], "/PGM/CPU%u/R0/SetSize020..29", "20-29% filled");
1756	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[3], "/PGM/CPU%u/R0/SetSize030..39", "30-39% filled");
1757	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[4], "/PGM/CPU%u/R0/SetSize040..49", "40-49% filled");
1758	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[5], "/PGM/CPU%u/R0/SetSize050..59", "50-59% filled");
1759	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[6], "/PGM/CPU%u/R0/SetSize060..69", "60-69% filled");
1760	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[7], "/PGM/CPU%u/R0/SetSize070..79", "70-79% filled");
1761	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[8], "/PGM/CPU%u/R0/SetSize080..89", "80-89% filled");
1762	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[9], "/PGM/CPU%u/R0/SetSize090..99", "90-99% filled");
1763	PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[10], "/PGM/CPU%u/R0/SetSize100", "100% filled");
1764
1765	/* RZ only: */
1766	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0e, "/PGM/CPU%u/RZ/Trap0e", "Profiling of the PGMTrap0eHandler() body.");
1767	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeCheckPageFault, "/PGM/CPU%u/RZ/Trap0e/Time/CheckPageFault", "Profiling of checking for dirty/access emulation faults.");
1768	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeSyncPT, "/PGM/CPU%u/RZ/Trap0e/Time/SyncPT", "Profiling of lazy page table syncing.");
1769	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeMapping, "/PGM/CPU%u/RZ/Trap0e/Time/Mapping", "Profiling of checking virtual mappings.");
1770	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeOutOfSync, "/PGM/CPU%u/RZ/Trap0e/Time/OutOfSync", "Profiling of out of sync page handling.");
1771	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeHandlers, "/PGM/CPU%u/RZ/Trap0e/Time/Handlers", "Profiling of checking handlers.");
1772	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2CSAM, "/PGM/CPU%u/RZ/Trap0e/Time2/CSAM", "Profiling of the Trap0eHandler body when the cause is CSAM.");
1773	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2DirtyAndAccessed, "/PGM/CPU%u/RZ/Trap0e/Time2/DirtyAndAccessedBits", "Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation.");
1774	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2GuestTrap, "/PGM/CPU%u/RZ/Trap0e/Time2/GuestTrap", "Profiling of the Trap0eHandler body when the cause is a guest trap.");
1775	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2HndPhys, "/PGM/CPU%u/RZ/Trap0e/Time2/HandlerPhysical", "Profiling of the Trap0eHandler body when the cause is a physical handler.");
1776	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2HndVirt, "/PGM/CPU%u/RZ/Trap0e/Time2/HandlerVirtual", "Profiling of the Trap0eHandler body when the cause is a virtual handler.");
1777	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2HndUnhandled, "/PGM/CPU%u/RZ/Trap0e/Time2/HandlerUnhandled", "Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page.");
1778	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2Misc, "/PGM/CPU%u/RZ/Trap0e/Time2/Misc", "Profiling of the Trap0eHandler body when the cause is not known.");
1779	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2OutOfSync, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSync", "Profiling of the Trap0eHandler body when the cause is an out-of-sync page.");
1780	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2OutOfSyncHndPhys, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSyncHndPhys", "Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page.");
1781	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2OutOfSyncHndVirt, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSyncHndVirt", "Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page.");
1782	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2OutOfSyncHndObs, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSyncObsHnd", "Profiling of the Trap0eHandler body when the cause is an obsolete handler page.");
1783	PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2SyncPT, "/PGM/CPU%u/RZ/Trap0e/Time2/SyncPT", "Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT.");
1784	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eConflicts, "/PGM/CPU%u/RZ/Trap0e/Conflicts", "The number of times #PF was caused by an undetected conflict.");
1785	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersMapping, "/PGM/CPU%u/RZ/Trap0e/Handlers/Mapping", "Number of traps due to access handlers in mappings.");
1786	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersOutOfSync, "/PGM/CPU%u/RZ/Trap0e/Handlers/OutOfSync", "Number of traps due to out-of-sync handled pages.");
1787	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersPhysical, "/PGM/CPU%u/RZ/Trap0e/Handlers/Physical", "Number of traps due to physical access handlers.");
1788	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersVirtual, "/PGM/CPU%u/RZ/Trap0e/Handlers/Virtual", "Number of traps due to virtual access handlers.");
1789	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersVirtualByPhys, "/PGM/CPU%u/RZ/Trap0e/Handlers/VirtualByPhys", "Number of traps due to virtual access handlers by physical address.");
1790	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersVirtualUnmarked,"/PGM/CPU%u/RZ/Trap0e/Handlers/VirtualUnmarked","Number of traps due to virtual access handlers by virtual address (without proper physical flags).");
1791	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersUnhandled, "/PGM/CPU%u/RZ/Trap0e/Handlers/Unhandled", "Number of traps due to access outside range of monitored page(s).");
1792	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersInvalid, "/PGM/CPU%u/RZ/Trap0e/Handlers/Invalid", "Number of traps due to access to invalid physical memory.");
1793	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSNotPresentRead, "/PGM/CPU%u/RZ/Trap0e/Err/User/NPRead", "Number of user mode not present read page faults.");
1794	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSNotPresentWrite, "/PGM/CPU%u/RZ/Trap0e/Err/User/NPWrite", "Number of user mode not present write page faults.");
1795	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSWrite, "/PGM/CPU%u/RZ/Trap0e/Err/User/Write", "Number of user mode write page faults.");
1796	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSReserved, "/PGM/CPU%u/RZ/Trap0e/Err/User/Reserved", "Number of user mode reserved bit page faults.");
1797	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSNXE, "/PGM/CPU%u/RZ/Trap0e/Err/User/NXE", "Number of user mode NXE page faults.");
1798	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSRead, "/PGM/CPU%u/RZ/Trap0e/Err/User/Read", "Number of user mode read page faults.");
1799	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSVNotPresentRead, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/NPRead", "Number of supervisor mode not present read page faults.");
1800	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSVNotPresentWrite, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/NPWrite", "Number of supervisor mode not present write page faults.");
1801	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSVWrite, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/Write", "Number of supervisor mode write page faults.");
1802	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSVReserved, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/Reserved", "Number of supervisor mode reserved bit page faults.");
1803	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSNXE, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/NXE", "Number of supervisor mode NXE page faults.");
1804	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eGuestPF, "/PGM/CPU%u/RZ/Trap0e/GuestPF", "Number of real guest page faults.");
1805	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eGuestPFUnh, "/PGM/CPU%u/RZ/Trap0e/GuestPF/Unhandled", "Number of real guest page faults from the 'unhandled' case.");
1806	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eGuestPFMapping, "/PGM/CPU%u/RZ/Trap0e/GuestPF/InMapping", "Number of real guest page faults in a mapping.");
1807	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eWPEmulInRZ, "/PGM/CPU%u/RZ/Trap0e/WP/InRZ", "Number of guest page faults due to X86_CR0_WP emulation.");
1808	PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eWPEmulToR3, "/PGM/CPU%u/RZ/Trap0e/WP/ToR3", "Number of guest page faults due to X86_CR0_WP emulation (forward to R3 for emulation).");
1809	#if 0 /* rarely useful; leave for debugging. */
1810	for (unsigned j = 0; j < RT_ELEMENTS(pPgmCpu->StatRZTrap0ePD); j++)
1811	STAMR3RegisterF(pVM, &pPgmCpu->StatRZTrap0ePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1812	"The number of traps in page directory n.", "/PGM/CPU%u/RZ/Trap0e/PD/%04X", i, j);
1813	#endif
1814	PGM_REG_COUNTER(&pPgmCpu->StatRZGuestCR3WriteHandled, "/PGM/CPU%u/RZ/CR3WriteHandled", "The number of times the Guest CR3 change was successfully handled.");
1815	PGM_REG_COUNTER(&pPgmCpu->StatRZGuestCR3WriteUnhandled, "/PGM/CPU%u/RZ/CR3WriteUnhandled", "The number of times the Guest CR3 change was passed back to the recompiler.");
1816	PGM_REG_COUNTER(&pPgmCpu->StatRZGuestCR3WriteConflict, "/PGM/CPU%u/RZ/CR3WriteConflict", "The number of times the Guest CR3 monitoring detected a conflict.");
1817	PGM_REG_COUNTER(&pPgmCpu->StatRZGuestROMWriteHandled, "/PGM/CPU%u/RZ/ROMWriteHandled", "The number of times the Guest ROM change was successfully handled.");
1818	PGM_REG_COUNTER(&pPgmCpu->StatRZGuestROMWriteUnhandled, "/PGM/CPU%u/RZ/ROMWriteUnhandled", "The number of times the Guest ROM change was passed back to the recompiler.");
1819
1820	/* HC only: */
1821
1822	/* RZ & R3: */
1823	PGM_REG_PROFILE(&pPgmCpu->StatRZSyncCR3, "/PGM/CPU%u/RZ/SyncCR3", "Profiling of the PGMSyncCR3() body.");
1824	PGM_REG_PROFILE(&pPgmCpu->StatRZSyncCR3Handlers, "/PGM/CPU%u/RZ/SyncCR3/Handlers", "Profiling of the PGMSyncCR3() update handler section.");
1825	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3Global, "/PGM/CPU%u/RZ/SyncCR3/Global", "The number of global CR3 syncs.");
1826	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3NotGlobal, "/PGM/CPU%u/RZ/SyncCR3/NotGlobal", "The number of non-global CR3 syncs.");
1827	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstCacheHit, "/PGM/CPU%u/RZ/SyncCR3/DstChacheHit", "The number of times we got some kind of a cache hit.");
1828	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstFreed, "/PGM/CPU%u/RZ/SyncCR3/DstFreed", "The number of times we've had to free a shadow entry.");
1829	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstFreedSrcNP, "/PGM/CPU%u/RZ/SyncCR3/DstFreedSrcNP", "The number of times we've had to free a shadow entry for which the source entry was not present.");
1830	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstNotPresent, "/PGM/CPU%u/RZ/SyncCR3/DstNotPresent", "The number of times we've encountered a not present shadow entry for a present guest entry.");
1831	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstSkippedGlobalPD, "/PGM/CPU%u/RZ/SyncCR3/DstSkippedGlobalPD", "The number of times a global page directory wasn't flushed.");
1832	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstSkippedGlobalPT, "/PGM/CPU%u/RZ/SyncCR3/DstSkippedGlobalPT", "The number of times a page table with only global entries wasn't flushed.");
1833	PGM_REG_PROFILE(&pPgmCpu->StatRZSyncPT, "/PGM/CPU%u/RZ/SyncPT", "Profiling of the pfnSyncPT() body.");
1834	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPTFailed, "/PGM/CPU%u/RZ/SyncPT/Failed", "The number of times pfnSyncPT() failed.");
1835	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPT4K, "/PGM/CPU%u/RZ/SyncPT/4K", "Nr of 4K PT syncs");
1836	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPT4M, "/PGM/CPU%u/RZ/SyncPT/4M", "Nr of 4M PT syncs");
1837	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPagePDNAs, "/PGM/CPU%u/RZ/SyncPagePDNAs", "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
1838	PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPagePDOutOfSync, "/PGM/CPU%u/RZ/SyncPagePDOutOfSync", "The number of time we've encountered an out-of-sync PD in SyncPage.");
1839	PGM_REG_COUNTER(&pPgmCpu->StatRZAccessedPage, "/PGM/CPU%u/RZ/AccessedPage", "The number of pages marked not present for accessed bit emulation.");
1840	PGM_REG_PROFILE(&pPgmCpu->StatRZDirtyBitTracking, "/PGM/CPU%u/RZ/DirtyPage", "Profiling the dirty bit tracking in CheckPageFault().");
1841	PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPage, "/PGM/CPU%u/RZ/DirtyPage/Mark", "The number of pages marked read-only for dirty bit tracking.");
1842	PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPageBig, "/PGM/CPU%u/RZ/DirtyPage/MarkBig", "The number of 4MB pages marked read-only for dirty bit tracking.");
1843	PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPageSkipped, "/PGM/CPU%u/RZ/DirtyPage/Skipped", "The number of pages already dirty or readonly.");
1844	PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPageTrap, "/PGM/CPU%u/RZ/DirtyPage/Trap", "The number of traps generated for dirty bit tracking.");
1845	PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPageStale, "/PGM/CPU%u/RZ/DirtyPage/Stale", "The number of traps generated for dirty bit tracking (stale tlb entries).");
1846	PGM_REG_COUNTER(&pPgmCpu->StatRZDirtiedPage, "/PGM/CPU%u/RZ/DirtyPage/SetDirty", "The number of pages marked dirty because of write accesses.");
1847	PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyTrackRealPF, "/PGM/CPU%u/RZ/DirtyPage/RealPF", "The number of real pages faults during dirty bit tracking.");
1848	PGM_REG_COUNTER(&pPgmCpu->StatRZPageAlreadyDirty, "/PGM/CPU%u/RZ/DirtyPage/AlreadySet", "The number of pages already marked dirty because of write accesses.");
1849	PGM_REG_PROFILE(&pPgmCpu->StatRZInvalidatePage, "/PGM/CPU%u/RZ/InvalidatePage", "PGMInvalidatePage() profiling.");
1850	PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePage4KBPages, "/PGM/CPU%u/RZ/InvalidatePage/4KBPages", "The number of times PGMInvalidatePage() was called for a 4KB page.");
1851	PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePage4MBPages, "/PGM/CPU%u/RZ/InvalidatePage/4MBPages", "The number of times PGMInvalidatePage() was called for a 4MB page.");
1852	PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePage4MBPagesSkip, "/PGM/CPU%u/RZ/InvalidatePage/4MBPagesSkip","The number of times PGMInvalidatePage() skipped a 4MB page.");
1853	PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePagePDMappings, "/PGM/CPU%u/RZ/InvalidatePage/PDMappings", "The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict).");
1854	PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePagePDNAs, "/PGM/CPU%u/RZ/InvalidatePage/PDNAs", "The number of times PGMInvalidatePage() was called for a not accessed page directory.");
1855	PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePagePDNPs, "/PGM/CPU%u/RZ/InvalidatePage/PDNPs", "The number of times PGMInvalidatePage() was called for a not present page directory.");
1856	PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePagePDOutOfSync, "/PGM/CPU%u/RZ/InvalidatePage/PDOutOfSync", "The number of times PGMInvalidatePage() was called for an out of sync page directory.");
1857	PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePageSkipped, "/PGM/CPU%u/RZ/InvalidatePage/Skipped", "The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
1858	PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncSupervisor, "/PGM/CPU%u/RZ/OutOfSync/SuperVisor", "Number of traps due to pages out of sync (P) and times VerifyAccessSyncPage calls SyncPage.");
1859	PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncUser, "/PGM/CPU%u/RZ/OutOfSync/User", "Number of traps due to pages out of sync (P) and times VerifyAccessSyncPage calls SyncPage.");
1860	PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncSupervisorWrite,"/PGM/CPU%u/RZ/OutOfSync/SuperVisorWrite", "Number of traps due to pages out of sync (RW) and times VerifyAccessSyncPage calls SyncPage.");
1861	PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncUserWrite, "/PGM/CPU%u/RZ/OutOfSync/UserWrite", "Number of traps due to pages out of sync (RW) and times VerifyAccessSyncPage calls SyncPage.");
1862	PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncBallloon, "/PGM/CPU%u/RZ/OutOfSync/Balloon", "The number of times a ballooned page was accessed (read).");
1863	PGM_REG_PROFILE(&pPgmCpu->StatRZPrefetch, "/PGM/CPU%u/RZ/Prefetch", "PGMPrefetchPage profiling.");
1864	PGM_REG_PROFILE(&pPgmCpu->StatRZFlushTLB, "/PGM/CPU%u/RZ/FlushTLB", "Profiling of the PGMFlushTLB() body.");
1865	PGM_REG_COUNTER(&pPgmCpu->StatRZFlushTLBNewCR3, "/PGM/CPU%u/RZ/FlushTLB/NewCR3", "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
1866	PGM_REG_COUNTER(&pPgmCpu->StatRZFlushTLBNewCR3Global, "/PGM/CPU%u/RZ/FlushTLB/NewCR3Global", "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
1867	PGM_REG_COUNTER(&pPgmCpu->StatRZFlushTLBSameCR3, "/PGM/CPU%u/RZ/FlushTLB/SameCR3", "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
1868	PGM_REG_COUNTER(&pPgmCpu->StatRZFlushTLBSameCR3Global, "/PGM/CPU%u/RZ/FlushTLB/SameCR3Global", "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
1869	PGM_REG_PROFILE(&pPgmCpu->StatRZGstModifyPage, "/PGM/CPU%u/RZ/GstModifyPage", "Profiling of the PGMGstModifyPage() body.");
1870
1871	PGM_REG_PROFILE(&pPgmCpu->StatR3SyncCR3, "/PGM/CPU%u/R3/SyncCR3", "Profiling of the PGMSyncCR3() body.");
1872	PGM_REG_PROFILE(&pPgmCpu->StatR3SyncCR3Handlers, "/PGM/CPU%u/R3/SyncCR3/Handlers", "Profiling of the PGMSyncCR3() update handler section.");
1873	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3Global, "/PGM/CPU%u/R3/SyncCR3/Global", "The number of global CR3 syncs.");
1874	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3NotGlobal, "/PGM/CPU%u/R3/SyncCR3/NotGlobal", "The number of non-global CR3 syncs.");
1875	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstCacheHit, "/PGM/CPU%u/R3/SyncCR3/DstChacheHit", "The number of times we got some kind of a cache hit.");
1876	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstFreed, "/PGM/CPU%u/R3/SyncCR3/DstFreed", "The number of times we've had to free a shadow entry.");
1877	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstFreedSrcNP, "/PGM/CPU%u/R3/SyncCR3/DstFreedSrcNP", "The number of times we've had to free a shadow entry for which the source entry was not present.");
1878	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstNotPresent, "/PGM/CPU%u/R3/SyncCR3/DstNotPresent", "The number of times we've encountered a not present shadow entry for a present guest entry.");
1879	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstSkippedGlobalPD, "/PGM/CPU%u/R3/SyncCR3/DstSkippedGlobalPD", "The number of times a global page directory wasn't flushed.");
1880	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstSkippedGlobalPT, "/PGM/CPU%u/R3/SyncCR3/DstSkippedGlobalPT", "The number of times a page table with only global entries wasn't flushed.");
1881	PGM_REG_PROFILE(&pPgmCpu->StatR3SyncPT, "/PGM/CPU%u/R3/SyncPT", "Profiling of the pfnSyncPT() body.");
1882	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPTFailed, "/PGM/CPU%u/R3/SyncPT/Failed", "The number of times pfnSyncPT() failed.");
1883	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPT4K, "/PGM/CPU%u/R3/SyncPT/4K", "Nr of 4K PT syncs");
1884	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPT4M, "/PGM/CPU%u/R3/SyncPT/4M", "Nr of 4M PT syncs");
1885	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPagePDNAs, "/PGM/CPU%u/R3/SyncPagePDNAs", "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
1886	PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPagePDOutOfSync, "/PGM/CPU%u/R3/SyncPagePDOutOfSync", "The number of time we've encountered an out-of-sync PD in SyncPage.");
1887	PGM_REG_COUNTER(&pPgmCpu->StatR3AccessedPage, "/PGM/CPU%u/R3/AccessedPage", "The number of pages marked not present for accessed bit emulation.");
1888	PGM_REG_PROFILE(&pPgmCpu->StatR3DirtyBitTracking, "/PGM/CPU%u/R3/DirtyPage", "Profiling the dirty bit tracking in CheckPageFault().");
1889	PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyPage, "/PGM/CPU%u/R3/DirtyPage/Mark", "The number of pages marked read-only for dirty bit tracking.");
1890	PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyPageBig, "/PGM/CPU%u/R3/DirtyPage/MarkBig", "The number of 4MB pages marked read-only for dirty bit tracking.");
1891	PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyPageSkipped, "/PGM/CPU%u/R3/DirtyPage/Skipped", "The number of pages already dirty or readonly.");
1892	PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyPageTrap, "/PGM/CPU%u/R3/DirtyPage/Trap", "The number of traps generated for dirty bit tracking.");
1893	PGM_REG_COUNTER(&pPgmCpu->StatR3DirtiedPage, "/PGM/CPU%u/R3/DirtyPage/SetDirty", "The number of pages marked dirty because of write accesses.");
1894	PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyTrackRealPF, "/PGM/CPU%u/R3/DirtyPage/RealPF", "The number of real pages faults during dirty bit tracking.");
1895	PGM_REG_COUNTER(&pPgmCpu->StatR3PageAlreadyDirty, "/PGM/CPU%u/R3/DirtyPage/AlreadySet", "The number of pages already marked dirty because of write accesses.");
1896	PGM_REG_PROFILE(&pPgmCpu->StatR3InvalidatePage, "/PGM/CPU%u/R3/InvalidatePage", "PGMInvalidatePage() profiling.");
1897	PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePage4KBPages, "/PGM/CPU%u/R3/InvalidatePage/4KBPages", "The number of times PGMInvalidatePage() was called for a 4KB page.");
1898	PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePage4MBPages, "/PGM/CPU%u/R3/InvalidatePage/4MBPages", "The number of times PGMInvalidatePage() was called for a 4MB page.");
1899	PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePage4MBPagesSkip, "/PGM/CPU%u/R3/InvalidatePage/4MBPagesSkip","The number of times PGMInvalidatePage() skipped a 4MB page.");
1900	PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePagePDMappings, "/PGM/CPU%u/R3/InvalidatePage/PDMappings", "The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict).");
1901	PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePagePDNAs, "/PGM/CPU%u/R3/InvalidatePage/PDNAs", "The number of times PGMInvalidatePage() was called for a not accessed page directory.");
1902	PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePagePDNPs, "/PGM/CPU%u/R3/InvalidatePage/PDNPs", "The number of times PGMInvalidatePage() was called for a not present page directory.");
1903	PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePagePDOutOfSync, "/PGM/CPU%u/R3/InvalidatePage/PDOutOfSync", "The number of times PGMInvalidatePage() was called for an out of sync page directory.");
1904	PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePageSkipped, "/PGM/CPU%u/R3/InvalidatePage/Skipped", "The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
1905	PGM_REG_COUNTER(&pPgmCpu->StatR3PageOutOfSyncSupervisor, "/PGM/CPU%u/R3/OutOfSync/SuperVisor", "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1906	PGM_REG_COUNTER(&pPgmCpu->StatR3PageOutOfSyncUser, "/PGM/CPU%u/R3/OutOfSync/User", "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1907	PGM_REG_COUNTER(&pPgmCpu->StatR3PageOutOfSyncBallloon, "/PGM/CPU%u/R3/OutOfSync/Balloon", "The number of times a ballooned page was accessed (read).");
1908	PGM_REG_PROFILE(&pPgmCpu->StatR3Prefetch, "/PGM/CPU%u/R3/Prefetch", "PGMPrefetchPage profiling.");
1909	PGM_REG_PROFILE(&pPgmCpu->StatR3FlushTLB, "/PGM/CPU%u/R3/FlushTLB", "Profiling of the PGMFlushTLB() body.");
1910	PGM_REG_COUNTER(&pPgmCpu->StatR3FlushTLBNewCR3, "/PGM/CPU%u/R3/FlushTLB/NewCR3", "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
1911	PGM_REG_COUNTER(&pPgmCpu->StatR3FlushTLBNewCR3Global, "/PGM/CPU%u/R3/FlushTLB/NewCR3Global", "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
1912	PGM_REG_COUNTER(&pPgmCpu->StatR3FlushTLBSameCR3, "/PGM/CPU%u/R3/FlushTLB/SameCR3", "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
1913	PGM_REG_COUNTER(&pPgmCpu->StatR3FlushTLBSameCR3Global, "/PGM/CPU%u/R3/FlushTLB/SameCR3Global", "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
1914	PGM_REG_PROFILE(&pPgmCpu->StatR3GstModifyPage, "/PGM/CPU%u/R3/GstModifyPage", "Profiling of the PGMGstModifyPage() body.");
1915	#endif /* VBOX_WITH_STATISTICS */
1916
1917	#undef PGM_REG_PROFILE
1918	#undef PGM_REG_COUNTER
1919
1920	}
1921	}
1922
1923
1924	/**
1925	* Init the PGM bits that rely on VMMR0 and MM to be fully initialized.
1926	*
1927	* The dynamic mapping area will also be allocated and initialized at this
1928	* time. We could allocate it during PGMR3Init of course, but the mapping
1929	* wouldn't be allocated at that time preventing us from setting up the
1930	* page table entries with the dummy page.
1931	*
1932	* @returns VBox status code.
1933	* @param pVM VM handle.
1934	*/
1935	VMMR3DECL(int) PGMR3InitDynMap(PVM pVM)
1936	{
1937	RTGCPTR GCPtr;
1938	int rc;
1939
1940	/*
1941	* Reserve space for the dynamic mappings.
1942	*/
1943	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping", &GCPtr);
1944	if (RT_SUCCESS(rc))
1945	pVM->pgm.s.pbDynPageMapBaseGC = GCPtr;
1946
1947	if ( RT_SUCCESS(rc)
1948	&& (pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_PAE_SHIFT) != ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_PAE_SHIFT))
1949	{
1950	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping not crossing", &GCPtr);
1951	if (RT_SUCCESS(rc))
1952	pVM->pgm.s.pbDynPageMapBaseGC = GCPtr;
1953	}
1954	if (RT_SUCCESS(rc))
1955	{
1956	AssertRelease((pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_PAE_SHIFT) == ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_PAE_SHIFT));
1957	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1958	}
1959	return rc;
1960	}
1961
1962
1963	/**
1964	* Ring-3 init finalizing.
1965	*
1966	* @returns VBox status code.
1967	* @param pVM The VM handle.
1968	*/
1969	VMMR3DECL(int) PGMR3InitFinalize(PVM pVM)
1970	{
1971	int rc;
1972
1973	/*
1974	* Reserve space for the dynamic mappings.
1975	* Initialize the dynamic mapping pages with dummy pages to simply the cache.
1976	*/
1977	/* get the pointer to the page table entries. */
1978	PPGMMAPPING pMapping = pgmGetMapping(pVM, pVM->pgm.s.pbDynPageMapBaseGC);
1979	AssertRelease(pMapping);
1980	const uintptr_t off = pVM->pgm.s.pbDynPageMapBaseGC - pMapping->GCPtr;
1981	const unsigned iPT = off >> X86_PD_SHIFT;
1982	const unsigned iPG = (off >> X86_PT_SHIFT) & X86_PT_MASK;
1983	pVM->pgm.s.paDynPageMap32BitPTEsGC = pMapping->aPTs[iPT].pPTRC + iPG * sizeof(pMapping->aPTs[0].pPTR3->a[0]);
1984	pVM->pgm.s.paDynPageMapPaePTEsGC = pMapping->aPTs[iPT].paPaePTsRC + iPG * sizeof(pMapping->aPTs[0].paPaePTsR3->a[0]);
1985
1986	/* init cache */
1987	RTHCPHYS HCPhysDummy = MMR3PageDummyHCPhys(pVM);
1988	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.aHCPhysDynPageMapCache); i++)
1989	pVM->pgm.s.aHCPhysDynPageMapCache[i] = HCPhysDummy;
1990
1991	for (unsigned i = 0; i < MM_HYPER_DYNAMIC_SIZE; i += PAGE_SIZE)
1992	{
1993	rc = PGMMap(pVM, pVM->pgm.s.pbDynPageMapBaseGC + i, HCPhysDummy, PAGE_SIZE, 0);
1994	AssertRCReturn(rc, rc);
1995	}
1996
1997	/*
1998	* Note that AMD uses all the 8 reserved bits for the address (so 40 bits in total);
1999	* Intel only goes up to 36 bits, so we stick to 36 as well.
2000	*/
2001	/** @todo How to test for the 40 bits support? Long mode seems to be the test criterium. */
2002	uint32_t u32Dummy, u32Features;
2003	CPUMGetGuestCpuId(VMMGetCpu(pVM), 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
2004
2005	if (u32Features & X86_CPUID_FEATURE_EDX_PSE36)
2006	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(36) - 1;
2007	else
2008	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(32) - 1;
2009
2010	/*
2011	* Allocate memory if we're supposed to do that.
2012	*/
2013	if (pVM->pgm.s.fRamPreAlloc)
2014	rc = pgmR3PhysRamPreAllocate(pVM);
2015
2016	LogRel(("PGMR3InitFinalize: 4 MB PSE mask %RGp\n", pVM->pgm.s.GCPhys4MBPSEMask));
2017	return rc;
2018	}
2019
2020
2021	/**
2022	* Applies relocations to data and code managed by this component.
2023	*
2024	* This function will be called at init and whenever the VMM need to relocate it
2025	* self inside the GC.
2026	*
2027	* @param pVM The VM.
2028	* @param offDelta Relocation delta relative to old location.
2029	*/
2030	VMMR3DECL(void) PGMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
2031	{
2032	LogFlow(("PGMR3Relocate %RGv to %RGv\n", pVM->pgm.s.GCPtrCR3Mapping, pVM->pgm.s.GCPtrCR3Mapping + offDelta));
2033
2034	/*
2035	* Paging stuff.
2036	*/
2037	pVM->pgm.s.GCPtrCR3Mapping += offDelta;
2038
2039	pgmR3ModeDataInit(pVM, true /* resolve GC/R0 symbols */);
2040
2041	/* Shadow, guest and both mode switch & relocation for each VCPU. */
2042	for (VMCPUID i = 0; i < pVM->cCpus; i++)
2043	{
2044	PVMCPU pVCpu = &pVM->aCpus[i];
2045
2046	pgmR3ModeDataSwitch(pVM, pVCpu, pVCpu->pgm.s.enmShadowMode, pVCpu->pgm.s.enmGuestMode);
2047
2048	PGM_SHW_PFN(Relocate, pVCpu)(pVCpu, offDelta);
2049	PGM_GST_PFN(Relocate, pVCpu)(pVCpu, offDelta);
2050	PGM_BTH_PFN(Relocate, pVCpu)(pVCpu, offDelta);
2051	}
2052
2053	/*
2054	* Trees.
2055	*/
2056	pVM->pgm.s.pTreesRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pTreesR3);
2057
2058	/*
2059	* Ram ranges.
2060	*/
2061	if (pVM->pgm.s.pRamRangesR3)
2062	{
2063	/* Update the pSelfRC pointers and relink them. */
2064	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
2065	if (!(pCur->fFlags & PGM_RAM_RANGE_FLAGS_FLOATING))
2066	pCur->pSelfRC = MMHyperCCToRC(pVM, pCur);
2067	pgmR3PhysRelinkRamRanges(pVM);
2068	}
2069
2070	/*
2071	* Update the pSelfRC pointer of the MMIO2 ram ranges since they might not
2072	* be mapped and thus not included in the above exercise.
2073	*/
2074	for (PPGMMMIO2RANGE pCur = pVM->pgm.s.pMmio2RangesR3; pCur; pCur = pCur->pNextR3)
2075	if (!(pCur->RamRange.fFlags & PGM_RAM_RANGE_FLAGS_FLOATING))
2076	pCur->RamRange.pSelfRC = MMHyperCCToRC(pVM, &pCur->RamRange);
2077
2078	/*
2079	* Update the two page directories with all page table mappings.
2080	* (One or more of them have changed, that's why we're here.)
2081	*/
2082	pVM->pgm.s.pMappingsRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pMappingsR3);
2083	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur->pNextR3; pCur = pCur->pNextR3)
2084	pCur->pNextRC = MMHyperR3ToRC(pVM, pCur->pNextR3);
2085
2086	/* Relocate GC addresses of Page Tables. */
2087	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
2088	{
2089	for (RTHCUINT i = 0; i < pCur->cPTs; i++)
2090	{
2091	pCur->aPTs[i].pPTRC = MMHyperR3ToRC(pVM, pCur->aPTs[i].pPTR3);
2092	pCur->aPTs[i].paPaePTsRC = MMHyperR3ToRC(pVM, pCur->aPTs[i].paPaePTsR3);
2093	}
2094	}
2095
2096	/*
2097	* Dynamic page mapping area.
2098	*/
2099	pVM->pgm.s.paDynPageMap32BitPTEsGC += offDelta;
2100	pVM->pgm.s.paDynPageMapPaePTEsGC += offDelta;
2101	pVM->pgm.s.pbDynPageMapBaseGC += offDelta;
2102
2103	/*
2104	* The Zero page.
2105	*/
2106	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
2107	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
2108	AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTR0PTR \|\| !VMMIsHwVirtExtForced(pVM));
2109	#else
2110	AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTR0PTR);
2111	#endif
2112
2113	/*
2114	* Physical and virtual handlers.
2115	*/
2116	RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, true, pgmR3RelocatePhysHandler, &offDelta);
2117	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesR3->VirtHandlers, true, pgmR3RelocateVirtHandler, &offDelta);
2118	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesR3->HyperVirtHandlers, true, pgmR3RelocateHyperVirtHandler, &offDelta);
2119
2120	/*
2121	* The page pool.
2122	*/
2123	pgmR3PoolRelocate(pVM);
2124	}
2125
2126
2127	/**
2128	* Callback function for relocating a physical access handler.
2129	*
2130	* @returns 0 (continue enum)
2131	* @param pNode Pointer to a PGMPHYSHANDLER node.
2132	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
2133	* not certain the delta will fit in a void pointer for all possible configs.
2134	*/
2135	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser)
2136	{
2137	PPGMPHYSHANDLER pHandler = (PPGMPHYSHANDLER)pNode;
2138	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
2139	if (pHandler->pfnHandlerRC)
2140	pHandler->pfnHandlerRC += offDelta;
2141	if (pHandler->pvUserRC >= 0x10000)
2142	pHandler->pvUserRC += offDelta;
2143	return 0;
2144	}
2145
2146
2147	/**
2148	* Callback function for relocating a virtual access handler.
2149	*
2150	* @returns 0 (continue enum)
2151	* @param pNode Pointer to a PGMVIRTHANDLER node.
2152	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
2153	* not certain the delta will fit in a void pointer for all possible configs.
2154	*/
2155	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
2156	{
2157	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
2158	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
2159	Assert( pHandler->enmType == PGMVIRTHANDLERTYPE_ALL
2160	\|\| pHandler->enmType == PGMVIRTHANDLERTYPE_WRITE);
2161	Assert(pHandler->pfnHandlerRC);
2162	pHandler->pfnHandlerRC += offDelta;
2163	return 0;
2164	}
2165
2166
2167	/**
2168	* Callback function for relocating a virtual access handler for the hypervisor mapping.
2169	*
2170	* @returns 0 (continue enum)
2171	* @param pNode Pointer to a PGMVIRTHANDLER node.
2172	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
2173	* not certain the delta will fit in a void pointer for all possible configs.
2174	*/
2175	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
2176	{
2177	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
2178	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
2179	Assert(pHandler->enmType == PGMVIRTHANDLERTYPE_HYPERVISOR);
2180	Assert(pHandler->pfnHandlerRC);
2181	pHandler->pfnHandlerRC += offDelta;
2182	return 0;
2183	}
2184
2185
2186	/**
2187	* Resets a virtual CPU when unplugged.
2188	*
2189	* @param pVM The VM handle.
2190	* @param pVCpu The virtual CPU handle.
2191	*/
2192	VMMR3DECL(void) PGMR3ResetUnpluggedCpu(PVM pVM, PVMCPU pVCpu)
2193	{
2194	int rc = PGM_GST_PFN(Exit, pVCpu)(pVCpu);
2195	AssertRC(rc);
2196
2197	rc = PGMR3ChangeMode(pVM, pVCpu, PGMMODE_REAL);
2198	AssertRC(rc);
2199
2200	STAM_REL_COUNTER_RESET(&pVCpu->pgm.s.cGuestModeChanges);
2201
2202	pgmR3PoolResetUnpluggedCpu(pVM, pVCpu);
2203
2204	/*
2205	* Re-init other members.
2206	*/
2207	pVCpu->pgm.s.fA20Enabled = true;
2208
2209	/*
2210	* Clear the FFs PGM owns.
2211	*/
2212	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
2213	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
2214	}
2215
2216
2217	/**
2218	* The VM is being reset.
2219	*
2220	* For the PGM component this means that any PD write monitors
2221	* needs to be removed.
2222	*
2223	* @param pVM VM handle.
2224	*/
2225	VMMR3DECL(void) PGMR3Reset(PVM pVM)
2226	{
2227	int rc;
2228
2229	LogFlow(("PGMR3Reset:\n"));
2230	VM_ASSERT_EMT(pVM);
2231
2232	pgmLock(pVM);
2233
2234	/*
2235	* Unfix any fixed mappings and disable CR3 monitoring.
2236	*/
2237	pVM->pgm.s.fMappingsFixed = false;
2238	pVM->pgm.s.fMappingsFixedRestored = false;
2239	pVM->pgm.s.GCPtrMappingFixed = NIL_RTGCPTR;
2240	pVM->pgm.s.cbMappingFixed = 0;
2241
2242	/*
2243	* Exit the guest paging mode before the pgm pool gets reset.
2244	* Important to clean up the amd64 case.
2245	*/
2246	for (VMCPUID i = 0; i < pVM->cCpus; i++)
2247	{
2248	PVMCPU pVCpu = &pVM->aCpus[i];
2249	rc = PGM_GST_PFN(Exit, pVCpu)(pVCpu);
2250	AssertRC(rc);
2251	}
2252
2253	#ifdef DEBUG
2254	DBGFR3InfoLog(pVM, "mappings", NULL);
2255	DBGFR3InfoLog(pVM, "handlers", "all nostat");
2256	#endif
2257
2258	/*
2259	* Switch mode back to real mode. (before resetting the pgm pool!)
2260	*/
2261	for (VMCPUID i = 0; i < pVM->cCpus; i++)
2262	{
2263	PVMCPU pVCpu = &pVM->aCpus[i];
2264
2265	rc = PGMR3ChangeMode(pVM, pVCpu, PGMMODE_REAL);
2266	AssertRC(rc);
2267
2268	STAM_REL_COUNTER_RESET(&pVCpu->pgm.s.cGuestModeChanges);
2269	}
2270
2271	/*
2272	* Reset the shadow page pool.
2273	*/
2274	pgmR3PoolReset(pVM);
2275
2276	for (VMCPUID i = 0; i < pVM->cCpus; i++)
2277	{
2278	PVMCPU pVCpu = &pVM->aCpus[i];
2279
2280	/*
2281	* Re-init other members.
2282	*/
2283	pVCpu->pgm.s.fA20Enabled = true;
2284
2285	/*
2286	* Clear the FFs PGM owns.
2287	*/
2288	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
2289	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
2290	}
2291
2292	/*
2293	* Reset (zero) RAM pages.
2294	*/
2295	rc = pgmR3PhysRamReset(pVM);
2296	if (RT_SUCCESS(rc))
2297	{
2298	/*
2299	* Reset (zero) shadow ROM pages.
2300	*/
2301	rc = pgmR3PhysRomReset(pVM);
2302	}
2303
2304	pgmUnlock(pVM);
2305	AssertReleaseRC(rc);
2306	}
2307
2308
2309	#ifdef VBOX_STRICT
2310	/**
2311	* VM state change callback for clearing fNoMorePhysWrites after
2312	* a snapshot has been created.
2313	*/
2314	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser)
2315	{
2316	if ( enmState == VMSTATE_RUNNING
2317	\|\| enmState == VMSTATE_RESUMING)
2318	pVM->pgm.s.fNoMorePhysWrites = false;
2319	}
2320	#endif
2321
2322
2323	/**
2324	* Terminates the PGM.
2325	*
2326	* @returns VBox status code.
2327	* @param pVM Pointer to VM structure.
2328	*/
2329	VMMR3DECL(int) PGMR3Term(PVM pVM)
2330	{
2331	PGMDeregisterStringFormatTypes();
2332	return PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
2333	}
2334
2335
2336	/**
2337	* Terminates the per-VCPU PGM.
2338	*
2339	* Termination means cleaning up and freeing all resources,
2340	* the VM it self is at this point powered off or suspended.
2341	*
2342	* @returns VBox status code.
2343	* @param pVM The VM to operate on.
2344	*/
2345	VMMR3DECL(int) PGMR3TermCPU(PVM pVM)
2346	{
2347	return 0;
2348	}
2349
2350
2351	/**
2352	* Show paging mode.
2353	*
2354	* @param pVM VM Handle.
2355	* @param pHlp The info helpers.
2356	* @param pszArgs "all" (default), "guest", "shadow" or "host".
2357	*/
2358	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2359	{
2360	/* digest argument. */
2361	bool fGuest, fShadow, fHost;
2362	if (pszArgs)
2363	pszArgs = RTStrStripL(pszArgs);
2364	if (!pszArgs \|\| !*pszArgs \|\| strstr(pszArgs, "all"))
2365	fShadow = fHost = fGuest = true;
2366	else
2367	{
2368	fShadow = fHost = fGuest = false;
2369	if (strstr(pszArgs, "guest"))
2370	fGuest = true;
2371	if (strstr(pszArgs, "shadow"))
2372	fShadow = true;
2373	if (strstr(pszArgs, "host"))
2374	fHost = true;
2375	}
2376
2377	/** @todo SMP support! */
2378	/* print info. */
2379	if (fGuest)
2380	pHlp->pfnPrintf(pHlp, "Guest paging mode: %s, changed %RU64 times, A20 %s\n",
2381	PGMGetModeName(pVM->aCpus[0].pgm.s.enmGuestMode), pVM->aCpus[0].pgm.s.cGuestModeChanges.c,
2382	pVM->aCpus[0].pgm.s.fA20Enabled ? "enabled" : "disabled");
2383	if (fShadow)
2384	pHlp->pfnPrintf(pHlp, "Shadow paging mode: %s\n", PGMGetModeName(pVM->aCpus[0].pgm.s.enmShadowMode));
2385	if (fHost)
2386	{
2387	const char *psz;
2388	switch (pVM->pgm.s.enmHostMode)
2389	{
2390	case SUPPAGINGMODE_INVALID: psz = "invalid"; break;
2391	case SUPPAGINGMODE_32_BIT: psz = "32-bit"; break;
2392	case SUPPAGINGMODE_32_BIT_GLOBAL: psz = "32-bit+G"; break;
2393	case SUPPAGINGMODE_PAE: psz = "PAE"; break;
2394	case SUPPAGINGMODE_PAE_GLOBAL: psz = "PAE+G"; break;
2395	case SUPPAGINGMODE_PAE_NX: psz = "PAE+NX"; break;
2396	case SUPPAGINGMODE_PAE_GLOBAL_NX: psz = "PAE+G+NX"; break;
2397	case SUPPAGINGMODE_AMD64: psz = "AMD64"; break;
2398	case SUPPAGINGMODE_AMD64_GLOBAL: psz = "AMD64+G"; break;
2399	case SUPPAGINGMODE_AMD64_NX: psz = "AMD64+NX"; break;
2400	case SUPPAGINGMODE_AMD64_GLOBAL_NX: psz = "AMD64+G+NX"; break;
2401	default: psz = "unknown"; break;
2402	}
2403	pHlp->pfnPrintf(pHlp, "Host paging mode: %s\n", psz);
2404	}
2405	}
2406
2407
2408	/**
2409	* Dump registered MMIO ranges to the log.
2410	*
2411	* @param pVM VM Handle.
2412	* @param pHlp The info helpers.
2413	* @param pszArgs Arguments, ignored.
2414	*/
2415	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2416	{
2417	NOREF(pszArgs);
2418	pHlp->pfnPrintf(pHlp,
2419	"RAM ranges (pVM=%p)\n"
2420	"%.s %.s\n",
2421	pVM,
2422	sizeof(RTGCPHYS) * 4 + 1, "GC Phys Range ",
2423	sizeof(RTHCPTR) * 2, "pvHC ");
2424
2425	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
2426	pHlp->pfnPrintf(pHlp,
2427	"%RGp-%RGp %RHv %s\n",
2428	pCur->GCPhys,
2429	pCur->GCPhysLast,
2430	pCur->pvR3,
2431	pCur->pszDesc);
2432	}
2433
2434	/**
2435	* Dump the page directory to the log.
2436	*
2437	* @param pVM VM Handle.
2438	* @param pHlp The info helpers.
2439	* @param pszArgs Arguments, ignored.
2440	*/
2441	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2442	{
2443	/** @todo SMP support!! */
2444	PVMCPU pVCpu = &pVM->aCpus[0];
2445
2446	/** @todo fix this! Convert the PGMR3DumpHierarchyHC functions to do guest stuff. */
2447	/* Big pages supported? */
2448	const bool fPSE = !!(CPUMGetGuestCR4(pVCpu) & X86_CR4_PSE);
2449
2450	/* Global pages supported? */
2451	const bool fPGE = !!(CPUMGetGuestCR4(pVCpu) & X86_CR4_PGE);
2452
2453	NOREF(pszArgs);
2454
2455	/*
2456	* Get page directory addresses.
2457	*/
2458	PX86PD pPDSrc = pgmGstGet32bitPDPtr(&pVCpu->pgm.s);
2459	Assert(pPDSrc);
2460	Assert(PGMPhysGCPhys2R3PtrAssert(pVM, (RTGCPHYS)(CPUMGetGuestCR3(pVCpu) & X86_CR3_PAGE_MASK), sizeof(*pPDSrc)) == pPDSrc);
2461
2462	/*
2463	* Iterate the page directory.
2464	*/
2465	for (unsigned iPD = 0; iPD < RT_ELEMENTS(pPDSrc->a); iPD++)
2466	{
2467	X86PDE PdeSrc = pPDSrc->a[iPD];
2468	if (PdeSrc.n.u1Present)
2469	{
2470	if (PdeSrc.b.u1Size && fPSE)
2471	pHlp->pfnPrintf(pHlp,
2472	"%04X - %RGp P=%d U=%d RW=%d G=%d - BIG\n",
2473	iPD,
2474	pgmGstGet4MBPhysPage(&pVM->pgm.s, PdeSrc),
2475	PdeSrc.b.u1Present, PdeSrc.b.u1User, PdeSrc.b.u1Write, PdeSrc.b.u1Global && fPGE);
2476	else
2477	pHlp->pfnPrintf(pHlp,
2478	"%04X - %RGp P=%d U=%d RW=%d [G=%d]\n",
2479	iPD,
2480	(RTGCPHYS)(PdeSrc.u & X86_PDE_PG_MASK),
2481	PdeSrc.n.u1Present, PdeSrc.n.u1User, PdeSrc.n.u1Write, PdeSrc.b.u1Global && fPGE);
2482	}
2483	}
2484	}
2485
2486
2487	/**
2488	* Service a VMMCALLRING3_PGM_LOCK call.
2489	*
2490	* @returns VBox status code.
2491	* @param pVM The VM handle.
2492	*/
2493	VMMR3DECL(int) PGMR3LockCall(PVM pVM)
2494	{
2495	int rc = PDMR3CritSectEnterEx(&pVM->pgm.s.CritSect, true /* fHostCall */);
2496	AssertRC(rc);
2497	return rc;
2498	}
2499
2500
2501	/**
2502	* Converts a PGMMODE value to a PGM_TYPE_* \#define.
2503	*
2504	* @returns PGM_TYPE_*.
2505	* @param pgmMode The mode value to convert.
2506	*/
2507	DECLINLINE(unsigned) pgmModeToType(PGMMODE pgmMode)
2508	{
2509	switch (pgmMode)
2510	{
2511	case PGMMODE_REAL: return PGM_TYPE_REAL;
2512	case PGMMODE_PROTECTED: return PGM_TYPE_PROT;
2513	case PGMMODE_32_BIT: return PGM_TYPE_32BIT;
2514	case PGMMODE_PAE:
2515	case PGMMODE_PAE_NX: return PGM_TYPE_PAE;
2516	case PGMMODE_AMD64:
2517	case PGMMODE_AMD64_NX: return PGM_TYPE_AMD64;
2518	case PGMMODE_NESTED: return PGM_TYPE_NESTED;
2519	case PGMMODE_EPT: return PGM_TYPE_EPT;
2520	default:
2521	AssertFatalMsgFailed(("pgmMode=%d\n", pgmMode));
2522	}
2523	}
2524
2525
2526	/**
2527	* Gets the index into the paging mode data array of a SHW+GST mode.
2528	*
2529	* @returns PGM::paPagingData index.
2530	* @param uShwType The shadow paging mode type.
2531	* @param uGstType The guest paging mode type.
2532	*/
2533	DECLINLINE(unsigned) pgmModeDataIndex(unsigned uShwType, unsigned uGstType)
2534	{
2535	Assert(uShwType >= PGM_TYPE_32BIT && uShwType <= PGM_TYPE_MAX);
2536	Assert(uGstType >= PGM_TYPE_REAL && uGstType <= PGM_TYPE_AMD64);
2537	return (uShwType - PGM_TYPE_32BIT) * (PGM_TYPE_AMD64 - PGM_TYPE_REAL + 1)
2538	+ (uGstType - PGM_TYPE_REAL);
2539	}
2540
2541
2542	/**
2543	* Gets the index into the paging mode data array of a SHW+GST mode.
2544	*
2545	* @returns PGM::paPagingData index.
2546	* @param enmShw The shadow paging mode.
2547	* @param enmGst The guest paging mode.
2548	*/
2549	DECLINLINE(unsigned) pgmModeDataIndexByMode(PGMMODE enmShw, PGMMODE enmGst)
2550	{
2551	Assert(enmShw >= PGMMODE_32_BIT && enmShw <= PGMMODE_MAX);
2552	Assert(enmGst > PGMMODE_INVALID && enmGst < PGMMODE_MAX);
2553	return pgmModeDataIndex(pgmModeToType(enmShw), pgmModeToType(enmGst));
2554	}
2555
2556
2557	/**
2558	* Calculates the max data index.
2559	* @returns The number of entries in the paging data array.
2560	*/
2561	DECLINLINE(unsigned) pgmModeDataMaxIndex(void)
2562	{
2563	return pgmModeDataIndex(PGM_TYPE_MAX, PGM_TYPE_AMD64) + 1;
2564	}
2565
2566
2567	/**
2568	* Initializes the paging mode data kept in PGM::paModeData.
2569	*
2570	* @param pVM The VM handle.
2571	* @param fResolveGCAndR0 Indicate whether or not GC and Ring-0 symbols can be resolved now.
2572	* This is used early in the init process to avoid trouble with PDM
2573	* not being initialized yet.
2574	*/
2575	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0)
2576	{
2577	PPGMMODEDATA pModeData;
2578	int rc;
2579
2580	/*
2581	* Allocate the array on the first call.
2582	*/
2583	if (!pVM->pgm.s.paModeData)
2584	{
2585	pVM->pgm.s.paModeData = (PPGMMODEDATA)MMR3HeapAllocZ(pVM, MM_TAG_PGM, sizeof(PGMMODEDATA) * pgmModeDataMaxIndex());
2586	AssertReturn(pVM->pgm.s.paModeData, VERR_NO_MEMORY);
2587	}
2588
2589	/*
2590	* Initialize the array entries.
2591	*/
2592	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_REAL)];
2593	pModeData->uShwType = PGM_TYPE_32BIT;
2594	pModeData->uGstType = PGM_TYPE_REAL;
2595	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2596	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2597	rc = PGM_BTH_NAME_32BIT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2598
2599	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGMMODE_PROTECTED)];
2600	pModeData->uShwType = PGM_TYPE_32BIT;
2601	pModeData->uGstType = PGM_TYPE_PROT;
2602	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2603	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2604	rc = PGM_BTH_NAME_32BIT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2605
2606	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_32BIT)];
2607	pModeData->uShwType = PGM_TYPE_32BIT;
2608	pModeData->uGstType = PGM_TYPE_32BIT;
2609	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2610	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2611	rc = PGM_BTH_NAME_32BIT_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2612
2613	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_REAL)];
2614	pModeData->uShwType = PGM_TYPE_PAE;
2615	pModeData->uGstType = PGM_TYPE_REAL;
2616	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2617	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2618	rc = PGM_BTH_NAME_PAE_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2619
2620	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PROT)];
2621	pModeData->uShwType = PGM_TYPE_PAE;
2622	pModeData->uGstType = PGM_TYPE_PROT;
2623	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2624	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2625	rc = PGM_BTH_NAME_PAE_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2626
2627	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_32BIT)];
2628	pModeData->uShwType = PGM_TYPE_PAE;
2629	pModeData->uGstType = PGM_TYPE_32BIT;
2630	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2631	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2632	rc = PGM_BTH_NAME_PAE_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2633
2634	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PAE)];
2635	pModeData->uShwType = PGM_TYPE_PAE;
2636	pModeData->uGstType = PGM_TYPE_PAE;
2637	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2638	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2639	rc = PGM_BTH_NAME_PAE_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2640
2641	#ifdef VBOX_WITH_64_BITS_GUESTS
2642	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_AMD64)];
2643	pModeData->uShwType = PGM_TYPE_AMD64;
2644	pModeData->uGstType = PGM_TYPE_AMD64;
2645	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2646	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2647	rc = PGM_BTH_NAME_AMD64_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2648	#endif
2649
2650	/* The nested paging mode. */
2651	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_REAL)];
2652	pModeData->uShwType = PGM_TYPE_NESTED;
2653	pModeData->uGstType = PGM_TYPE_REAL;
2654	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2655	rc = PGM_BTH_NAME_NESTED_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2656
2657	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGMMODE_PROTECTED)];
2658	pModeData->uShwType = PGM_TYPE_NESTED;
2659	pModeData->uGstType = PGM_TYPE_PROT;
2660	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2661	rc = PGM_BTH_NAME_NESTED_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2662
2663	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_32BIT)];
2664	pModeData->uShwType = PGM_TYPE_NESTED;
2665	pModeData->uGstType = PGM_TYPE_32BIT;
2666	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2667	rc = PGM_BTH_NAME_NESTED_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2668
2669	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_PAE)];
2670	pModeData->uShwType = PGM_TYPE_NESTED;
2671	pModeData->uGstType = PGM_TYPE_PAE;
2672	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2673	rc = PGM_BTH_NAME_NESTED_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2674
2675	#ifdef VBOX_WITH_64_BITS_GUESTS
2676	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
2677	pModeData->uShwType = PGM_TYPE_NESTED;
2678	pModeData->uGstType = PGM_TYPE_AMD64;
2679	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2680	rc = PGM_BTH_NAME_NESTED_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2681	#endif
2682
2683	/* The shadow part of the nested callback mode depends on the host paging mode (AMD-V only). */
2684	switch (pVM->pgm.s.enmHostMode)
2685	{
2686	#if HC_ARCH_BITS == 32
2687	case SUPPAGINGMODE_32_BIT:
2688	case SUPPAGINGMODE_32_BIT_GLOBAL:
2689	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
2690	{
2691	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
2692	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2693	}
2694	# ifdef VBOX_WITH_64_BITS_GUESTS
2695	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
2696	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2697	# endif
2698	break;
2699
2700	case SUPPAGINGMODE_PAE:
2701	case SUPPAGINGMODE_PAE_NX:
2702	case SUPPAGINGMODE_PAE_GLOBAL:
2703	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2704	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
2705	{
2706	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
2707	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2708	}
2709	# ifdef VBOX_WITH_64_BITS_GUESTS
2710	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
2711	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2712	# endif
2713	break;
2714	#endif /* HC_ARCH_BITS == 32 */
2715
2716	#if HC_ARCH_BITS == 64 \|\| defined(RT_OS_DARWIN)
2717	case SUPPAGINGMODE_AMD64:
2718	case SUPPAGINGMODE_AMD64_GLOBAL:
2719	case SUPPAGINGMODE_AMD64_NX:
2720	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2721	# ifdef VBOX_WITH_64_BITS_GUESTS
2722	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_AMD64; i++)
2723	# else
2724	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
2725	# endif
2726	{
2727	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
2728	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2729	}
2730	break;
2731	#endif /* HC_ARCH_BITS == 64 \|\| RT_OS_DARWIN */
2732
2733	default:
2734	AssertFailed();
2735	break;
2736	}
2737
2738	/* Extended paging (EPT) / Intel VT-x */
2739	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_REAL)];
2740	pModeData->uShwType = PGM_TYPE_EPT;
2741	pModeData->uGstType = PGM_TYPE_REAL;
2742	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2743	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2744	rc = PGM_BTH_NAME_EPT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2745
2746	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_PROT)];
2747	pModeData->uShwType = PGM_TYPE_EPT;
2748	pModeData->uGstType = PGM_TYPE_PROT;
2749	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2750	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2751	rc = PGM_BTH_NAME_EPT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2752
2753	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_32BIT)];
2754	pModeData->uShwType = PGM_TYPE_EPT;
2755	pModeData->uGstType = PGM_TYPE_32BIT;
2756	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2757	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2758	rc = PGM_BTH_NAME_EPT_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2759
2760	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_PAE)];
2761	pModeData->uShwType = PGM_TYPE_EPT;
2762	pModeData->uGstType = PGM_TYPE_PAE;
2763	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2764	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2765	rc = PGM_BTH_NAME_EPT_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2766
2767	#ifdef VBOX_WITH_64_BITS_GUESTS
2768	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_AMD64)];
2769	pModeData->uShwType = PGM_TYPE_EPT;
2770	pModeData->uGstType = PGM_TYPE_AMD64;
2771	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2772	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2773	rc = PGM_BTH_NAME_EPT_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
2774	#endif
2775	return VINF_SUCCESS;
2776	}
2777
2778
2779	/**
2780	* Switch to different (or relocated in the relocate case) mode data.
2781	*
2782	* @param pVM The VM handle.
2783	* @param pVCpu The VMCPU to operate on.
2784	* @param enmShw The the shadow paging mode.
2785	* @param enmGst The the guest paging mode.
2786	*/
2787	static void pgmR3ModeDataSwitch(PVM pVM, PVMCPU pVCpu, PGMMODE enmShw, PGMMODE enmGst)
2788	{
2789	PPGMMODEDATA pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndexByMode(enmShw, enmGst)];
2790
2791	Assert(pModeData->uGstType == pgmModeToType(enmGst));
2792	Assert(pModeData->uShwType == pgmModeToType(enmShw));
2793
2794	/* shadow */
2795	pVCpu->pgm.s.pfnR3ShwRelocate = pModeData->pfnR3ShwRelocate;
2796	pVCpu->pgm.s.pfnR3ShwExit = pModeData->pfnR3ShwExit;
2797	pVCpu->pgm.s.pfnR3ShwGetPage = pModeData->pfnR3ShwGetPage;
2798	Assert(pVCpu->pgm.s.pfnR3ShwGetPage);
2799	pVCpu->pgm.s.pfnR3ShwModifyPage = pModeData->pfnR3ShwModifyPage;
2800
2801	pVCpu->pgm.s.pfnRCShwGetPage = pModeData->pfnRCShwGetPage;
2802	pVCpu->pgm.s.pfnRCShwModifyPage = pModeData->pfnRCShwModifyPage;
2803
2804	pVCpu->pgm.s.pfnR0ShwGetPage = pModeData->pfnR0ShwGetPage;
2805	pVCpu->pgm.s.pfnR0ShwModifyPage = pModeData->pfnR0ShwModifyPage;
2806
2807
2808	/* guest */
2809	pVCpu->pgm.s.pfnR3GstRelocate = pModeData->pfnR3GstRelocate;
2810	pVCpu->pgm.s.pfnR3GstExit = pModeData->pfnR3GstExit;
2811	pVCpu->pgm.s.pfnR3GstGetPage = pModeData->pfnR3GstGetPage;
2812	Assert(pVCpu->pgm.s.pfnR3GstGetPage);
2813	pVCpu->pgm.s.pfnR3GstModifyPage = pModeData->pfnR3GstModifyPage;
2814	pVCpu->pgm.s.pfnR3GstGetPDE = pModeData->pfnR3GstGetPDE;
2815	pVCpu->pgm.s.pfnRCGstGetPage = pModeData->pfnRCGstGetPage;
2816	pVCpu->pgm.s.pfnRCGstModifyPage = pModeData->pfnRCGstModifyPage;
2817	pVCpu->pgm.s.pfnRCGstGetPDE = pModeData->pfnRCGstGetPDE;
2818	pVCpu->pgm.s.pfnR0GstGetPage = pModeData->pfnR0GstGetPage;
2819	pVCpu->pgm.s.pfnR0GstModifyPage = pModeData->pfnR0GstModifyPage;
2820	pVCpu->pgm.s.pfnR0GstGetPDE = pModeData->pfnR0GstGetPDE;
2821
2822	/* both */
2823	pVCpu->pgm.s.pfnR3BthRelocate = pModeData->pfnR3BthRelocate;
2824	pVCpu->pgm.s.pfnR3BthInvalidatePage = pModeData->pfnR3BthInvalidatePage;
2825	pVCpu->pgm.s.pfnR3BthSyncCR3 = pModeData->pfnR3BthSyncCR3;
2826	Assert(pVCpu->pgm.s.pfnR3BthSyncCR3);
2827	pVCpu->pgm.s.pfnR3BthSyncPage = pModeData->pfnR3BthSyncPage;
2828	pVCpu->pgm.s.pfnR3BthPrefetchPage = pModeData->pfnR3BthPrefetchPage;
2829	pVCpu->pgm.s.pfnR3BthVerifyAccessSyncPage = pModeData->pfnR3BthVerifyAccessSyncPage;
2830	#ifdef VBOX_STRICT
2831	pVCpu->pgm.s.pfnR3BthAssertCR3 = pModeData->pfnR3BthAssertCR3;
2832	#endif
2833	pVCpu->pgm.s.pfnR3BthMapCR3 = pModeData->pfnR3BthMapCR3;
2834	pVCpu->pgm.s.pfnR3BthUnmapCR3 = pModeData->pfnR3BthUnmapCR3;
2835
2836	pVCpu->pgm.s.pfnRCBthTrap0eHandler = pModeData->pfnRCBthTrap0eHandler;
2837	pVCpu->pgm.s.pfnRCBthInvalidatePage = pModeData->pfnRCBthInvalidatePage;
2838	pVCpu->pgm.s.pfnRCBthSyncCR3 = pModeData->pfnRCBthSyncCR3;
2839	pVCpu->pgm.s.pfnRCBthSyncPage = pModeData->pfnRCBthSyncPage;
2840	pVCpu->pgm.s.pfnRCBthPrefetchPage = pModeData->pfnRCBthPrefetchPage;
2841	pVCpu->pgm.s.pfnRCBthVerifyAccessSyncPage = pModeData->pfnRCBthVerifyAccessSyncPage;
2842	#ifdef VBOX_STRICT
2843	pVCpu->pgm.s.pfnRCBthAssertCR3 = pModeData->pfnRCBthAssertCR3;
2844	#endif
2845	pVCpu->pgm.s.pfnRCBthMapCR3 = pModeData->pfnRCBthMapCR3;
2846	pVCpu->pgm.s.pfnRCBthUnmapCR3 = pModeData->pfnRCBthUnmapCR3;
2847
2848	pVCpu->pgm.s.pfnR0BthTrap0eHandler = pModeData->pfnR0BthTrap0eHandler;
2849	pVCpu->pgm.s.pfnR0BthInvalidatePage = pModeData->pfnR0BthInvalidatePage;
2850	pVCpu->pgm.s.pfnR0BthSyncCR3 = pModeData->pfnR0BthSyncCR3;
2851	pVCpu->pgm.s.pfnR0BthSyncPage = pModeData->pfnR0BthSyncPage;
2852	pVCpu->pgm.s.pfnR0BthPrefetchPage = pModeData->pfnR0BthPrefetchPage;
2853	pVCpu->pgm.s.pfnR0BthVerifyAccessSyncPage = pModeData->pfnR0BthVerifyAccessSyncPage;
2854	#ifdef VBOX_STRICT
2855	pVCpu->pgm.s.pfnR0BthAssertCR3 = pModeData->pfnR0BthAssertCR3;
2856	#endif
2857	pVCpu->pgm.s.pfnR0BthMapCR3 = pModeData->pfnR0BthMapCR3;
2858	pVCpu->pgm.s.pfnR0BthUnmapCR3 = pModeData->pfnR0BthUnmapCR3;
2859	}
2860
2861
2862	/**
2863	* Calculates the shadow paging mode.
2864	*
2865	* @returns The shadow paging mode.
2866	* @param pVM VM handle.
2867	* @param enmGuestMode The guest mode.
2868	* @param enmHostMode The host mode.
2869	* @param enmShadowMode The current shadow mode.
2870	* @param penmSwitcher Where to store the switcher to use.
2871	* VMMSWITCHER_INVALID means no change.
2872	*/
2873	static PGMMODE pgmR3CalcShadowMode(PVM pVM, PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher)
2874	{
2875	VMMSWITCHER enmSwitcher = VMMSWITCHER_INVALID;
2876	switch (enmGuestMode)
2877	{
2878	/*
2879	* When switching to real or protected mode we don't change
2880	* anything since it's likely that we'll switch back pretty soon.
2881	*
2882	* During pgmR3InitPaging we'll end up here with PGMMODE_INVALID
2883	* and is supposed to determine which shadow paging and switcher to
2884	* use during init.
2885	*/
2886	case PGMMODE_REAL:
2887	case PGMMODE_PROTECTED:
2888	if ( enmShadowMode != PGMMODE_INVALID
2889	&& !HWACCMIsEnabled(pVM) /* always switch in hwaccm mode! */)
2890	break; /* (no change) */
2891
2892	switch (enmHostMode)
2893	{
2894	case SUPPAGINGMODE_32_BIT:
2895	case SUPPAGINGMODE_32_BIT_GLOBAL:
2896	enmShadowMode = PGMMODE_32_BIT;
2897	enmSwitcher = VMMSWITCHER_32_TO_32;
2898	break;
2899
2900	case SUPPAGINGMODE_PAE:
2901	case SUPPAGINGMODE_PAE_NX:
2902	case SUPPAGINGMODE_PAE_GLOBAL:
2903	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2904	enmShadowMode = PGMMODE_PAE;
2905	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2906	#ifdef DEBUG_bird
2907	if (RTEnvExist("VBOX_32BIT"))
2908	{
2909	enmShadowMode = PGMMODE_32_BIT;
2910	enmSwitcher = VMMSWITCHER_PAE_TO_32;
2911	}
2912	#endif
2913	break;
2914
2915	case SUPPAGINGMODE_AMD64:
2916	case SUPPAGINGMODE_AMD64_GLOBAL:
2917	case SUPPAGINGMODE_AMD64_NX:
2918	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2919	enmShadowMode = PGMMODE_PAE;
2920	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
2921	#ifdef DEBUG_bird
2922	if (RTEnvExist("VBOX_32BIT"))
2923	{
2924	enmShadowMode = PGMMODE_32_BIT;
2925	enmSwitcher = VMMSWITCHER_AMD64_TO_32;
2926	}
2927	#endif
2928	break;
2929
2930	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2931	}
2932	break;
2933
2934	case PGMMODE_32_BIT:
2935	switch (enmHostMode)
2936	{
2937	case SUPPAGINGMODE_32_BIT:
2938	case SUPPAGINGMODE_32_BIT_GLOBAL:
2939	enmShadowMode = PGMMODE_32_BIT;
2940	enmSwitcher = VMMSWITCHER_32_TO_32;
2941	break;
2942
2943	case SUPPAGINGMODE_PAE:
2944	case SUPPAGINGMODE_PAE_NX:
2945	case SUPPAGINGMODE_PAE_GLOBAL:
2946	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2947	enmShadowMode = PGMMODE_PAE;
2948	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2949	#ifdef DEBUG_bird
2950	if (RTEnvExist("VBOX_32BIT"))
2951	{
2952	enmShadowMode = PGMMODE_32_BIT;
2953	enmSwitcher = VMMSWITCHER_PAE_TO_32;
2954	}
2955	#endif
2956	break;
2957
2958	case SUPPAGINGMODE_AMD64:
2959	case SUPPAGINGMODE_AMD64_GLOBAL:
2960	case SUPPAGINGMODE_AMD64_NX:
2961	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2962	enmShadowMode = PGMMODE_PAE;
2963	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
2964	#ifdef DEBUG_bird
2965	if (RTEnvExist("VBOX_32BIT"))
2966	{
2967	enmShadowMode = PGMMODE_32_BIT;
2968	enmSwitcher = VMMSWITCHER_AMD64_TO_32;
2969	}
2970	#endif
2971	break;
2972
2973	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
2974	}
2975	break;
2976
2977	case PGMMODE_PAE:
2978	case PGMMODE_PAE_NX: /** @todo This might require more switchers and guest+both modes. */
2979	switch (enmHostMode)
2980	{
2981	case SUPPAGINGMODE_32_BIT:
2982	case SUPPAGINGMODE_32_BIT_GLOBAL:
2983	enmShadowMode = PGMMODE_PAE;
2984	enmSwitcher = VMMSWITCHER_32_TO_PAE;
2985	break;
2986
2987	case SUPPAGINGMODE_PAE:
2988	case SUPPAGINGMODE_PAE_NX:
2989	case SUPPAGINGMODE_PAE_GLOBAL:
2990	case SUPPAGINGMODE_PAE_GLOBAL_NX:
2991	enmShadowMode = PGMMODE_PAE;
2992	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
2993	break;
2994
2995	case SUPPAGINGMODE_AMD64:
2996	case SUPPAGINGMODE_AMD64_GLOBAL:
2997	case SUPPAGINGMODE_AMD64_NX:
2998	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
2999	enmShadowMode = PGMMODE_PAE;
3000	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
3001	break;
3002
3003	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3004	}
3005	break;
3006
3007	case PGMMODE_AMD64:
3008	case PGMMODE_AMD64_NX:
3009	switch (enmHostMode)
3010	{
3011	case SUPPAGINGMODE_32_BIT:
3012	case SUPPAGINGMODE_32_BIT_GLOBAL:
3013	enmShadowMode = PGMMODE_AMD64;
3014	enmSwitcher = VMMSWITCHER_32_TO_AMD64;
3015	break;
3016
3017	case SUPPAGINGMODE_PAE:
3018	case SUPPAGINGMODE_PAE_NX:
3019	case SUPPAGINGMODE_PAE_GLOBAL:
3020	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3021	enmShadowMode = PGMMODE_AMD64;
3022	enmSwitcher = VMMSWITCHER_PAE_TO_AMD64;
3023	break;
3024
3025	case SUPPAGINGMODE_AMD64:
3026	case SUPPAGINGMODE_AMD64_GLOBAL:
3027	case SUPPAGINGMODE_AMD64_NX:
3028	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3029	enmShadowMode = PGMMODE_AMD64;
3030	enmSwitcher = VMMSWITCHER_AMD64_TO_AMD64;
3031	break;
3032
3033	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3034	}
3035	break;
3036
3037
3038	default:
3039	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
3040	*penmSwitcher = VMMSWITCHER_INVALID;
3041	return PGMMODE_INVALID;
3042	}
3043	/* Override the shadow mode is nested paging is active. */
3044	if (HWACCMIsNestedPagingActive(pVM))
3045	enmShadowMode = HWACCMGetShwPagingMode(pVM);
3046
3047	*penmSwitcher = enmSwitcher;
3048	return enmShadowMode;
3049	}
3050
3051
3052	/**
3053	* Performs the actual mode change.
3054	* This is called by PGMChangeMode and pgmR3InitPaging().
3055	*
3056	* @returns VBox status code. May suspend or power off the VM on error, but this
3057	* will trigger using FFs and not status codes.
3058	*
3059	* @param pVM VM handle.
3060	* @param pVCpu The VMCPU to operate on.
3061	* @param enmGuestMode The new guest mode. This is assumed to be different from
3062	* the current mode.
3063	*/
3064	VMMR3DECL(int) PGMR3ChangeMode(PVM pVM, PVMCPU pVCpu, PGMMODE enmGuestMode)
3065	{
3066	bool fIsOldGuestPagingMode64Bits = (pVCpu->pgm.s.enmGuestMode >= PGMMODE_AMD64);
3067	bool fIsNewGuestPagingMode64Bits = (enmGuestMode >= PGMMODE_AMD64);
3068
3069	Log(("PGMR3ChangeMode: Guest mode: %s -> %s\n", PGMGetModeName(pVCpu->pgm.s.enmGuestMode), PGMGetModeName(enmGuestMode)));
3070	STAM_REL_COUNTER_INC(&pVCpu->pgm.s.cGuestModeChanges);
3071
3072	/*
3073	* Calc the shadow mode and switcher.
3074	*/
3075	VMMSWITCHER enmSwitcher;
3076	PGMMODE enmShadowMode = pgmR3CalcShadowMode(pVM, enmGuestMode, pVM->pgm.s.enmHostMode, pVCpu->pgm.s.enmShadowMode, &enmSwitcher);
3077
3078	#ifdef VBOX_WITH_RAW_MODE
3079	if (enmSwitcher != VMMSWITCHER_INVALID)
3080	{
3081	/*
3082	* Select new switcher.
3083	*/
3084	int rc = VMMR3SelectSwitcher(pVM, enmSwitcher);
3085	if (RT_FAILURE(rc))
3086	{
3087	AssertReleaseMsgFailed(("VMMR3SelectSwitcher(%d) -> %Rrc\n", enmSwitcher, rc));
3088	return rc;
3089	}
3090	}
3091	#endif
3092
3093	/*
3094	* Exit old mode(s).
3095	*/
3096	#if HC_ARCH_BITS == 32
3097	/* The nested shadow paging mode for AMD-V does change when running 64 bits guests on 32 bits hosts; typically PAE <-> AMD64 */
3098	const bool fForceShwEnterExit = ( fIsOldGuestPagingMode64Bits != fIsNewGuestPagingMode64Bits
3099	&& enmShadowMode == PGMMODE_NESTED);
3100	#else
3101	const bool fForceShwEnterExit = false;
3102	#endif
3103	/* shadow */
3104	if ( enmShadowMode != pVCpu->pgm.s.enmShadowMode
3105	\|\| fForceShwEnterExit)
3106	{
3107	LogFlow(("PGMR3ChangeMode: Shadow mode: %s -> %s\n", PGMGetModeName(pVCpu->pgm.s.enmShadowMode), PGMGetModeName(enmShadowMode)));
3108	if (PGM_SHW_PFN(Exit, pVCpu))
3109	{
3110	int rc = PGM_SHW_PFN(Exit, pVCpu)(pVCpu);
3111	if (RT_FAILURE(rc))
3112	{
3113	AssertMsgFailed(("Exit failed for shadow mode %d: %Rrc\n", pVCpu->pgm.s.enmShadowMode, rc));
3114	return rc;
3115	}
3116	}
3117
3118	}
3119	else
3120	LogFlow(("PGMR3ChangeMode: Shadow mode remains: %s\n", PGMGetModeName(pVCpu->pgm.s.enmShadowMode)));
3121
3122	/* guest */
3123	if (PGM_GST_PFN(Exit, pVCpu))
3124	{
3125	int rc = PGM_GST_PFN(Exit, pVCpu)(pVCpu);
3126	if (RT_FAILURE(rc))
3127	{
3128	AssertMsgFailed(("Exit failed for guest mode %d: %Rrc\n", pVCpu->pgm.s.enmGuestMode, rc));
3129	return rc;
3130	}
3131	}
3132
3133	/*
3134	* Load new paging mode data.
3135	*/
3136	pgmR3ModeDataSwitch(pVM, pVCpu, enmShadowMode, enmGuestMode);
3137
3138	/*
3139	* Enter new shadow mode (if changed).
3140	*/
3141	if ( enmShadowMode != pVCpu->pgm.s.enmShadowMode
3142	\|\| fForceShwEnterExit)
3143	{
3144	int rc;
3145	pVCpu->pgm.s.enmShadowMode = enmShadowMode;
3146	switch (enmShadowMode)
3147	{
3148	case PGMMODE_32_BIT:
3149	rc = PGM_SHW_NAME_32BIT(Enter)(pVCpu, false);
3150	break;
3151	case PGMMODE_PAE:
3152	case PGMMODE_PAE_NX:
3153	rc = PGM_SHW_NAME_PAE(Enter)(pVCpu, false);
3154	break;
3155	case PGMMODE_AMD64:
3156	case PGMMODE_AMD64_NX:
3157	rc = PGM_SHW_NAME_AMD64(Enter)(pVCpu, fIsNewGuestPagingMode64Bits);
3158	break;
3159	case PGMMODE_NESTED:
3160	rc = PGM_SHW_NAME_NESTED(Enter)(pVCpu, fIsNewGuestPagingMode64Bits);
3161	break;
3162	case PGMMODE_EPT:
3163	rc = PGM_SHW_NAME_EPT(Enter)(pVCpu, fIsNewGuestPagingMode64Bits);
3164	break;
3165	case PGMMODE_REAL:
3166	case PGMMODE_PROTECTED:
3167	default:
3168	AssertReleaseMsgFailed(("enmShadowMode=%d\n", enmShadowMode));
3169	return VERR_INTERNAL_ERROR;
3170	}
3171	if (RT_FAILURE(rc))
3172	{
3173	AssertReleaseMsgFailed(("Entering enmShadowMode=%d failed: %Rrc\n", enmShadowMode, rc));
3174	pVCpu->pgm.s.enmShadowMode = PGMMODE_INVALID;
3175	return rc;
3176	}
3177	}
3178
3179	/*
3180	* Always flag the necessary updates
3181	*/
3182	VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
3183
3184	/*
3185	* Enter the new guest and shadow+guest modes.
3186	*/
3187	int rc = -1;
3188	int rc2 = -1;
3189	RTGCPHYS GCPhysCR3 = NIL_RTGCPHYS;
3190	pVCpu->pgm.s.enmGuestMode = enmGuestMode;
3191	switch (enmGuestMode)
3192	{
3193	case PGMMODE_REAL:
3194	rc = PGM_GST_NAME_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3195	switch (pVCpu->pgm.s.enmShadowMode)
3196	{
3197	case PGMMODE_32_BIT:
3198	rc2 = PGM_BTH_NAME_32BIT_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3199	break;
3200	case PGMMODE_PAE:
3201	case PGMMODE_PAE_NX:
3202	rc2 = PGM_BTH_NAME_PAE_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3203	break;
3204	case PGMMODE_NESTED:
3205	rc2 = PGM_BTH_NAME_NESTED_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3206	break;
3207	case PGMMODE_EPT:
3208	rc2 = PGM_BTH_NAME_EPT_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3209	break;
3210	case PGMMODE_AMD64:
3211	case PGMMODE_AMD64_NX:
3212	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3213	default: AssertFailed(); break;
3214	}
3215	break;
3216
3217	case PGMMODE_PROTECTED:
3218	rc = PGM_GST_NAME_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3219	switch (pVCpu->pgm.s.enmShadowMode)
3220	{
3221	case PGMMODE_32_BIT:
3222	rc2 = PGM_BTH_NAME_32BIT_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3223	break;
3224	case PGMMODE_PAE:
3225	case PGMMODE_PAE_NX:
3226	rc2 = PGM_BTH_NAME_PAE_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3227	break;
3228	case PGMMODE_NESTED:
3229	rc2 = PGM_BTH_NAME_NESTED_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3230	break;
3231	case PGMMODE_EPT:
3232	rc2 = PGM_BTH_NAME_EPT_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3233	break;
3234	case PGMMODE_AMD64:
3235	case PGMMODE_AMD64_NX:
3236	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3237	default: AssertFailed(); break;
3238	}
3239	break;
3240
3241	case PGMMODE_32_BIT:
3242	GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & X86_CR3_PAGE_MASK;
3243	rc = PGM_GST_NAME_32BIT(Enter)(pVCpu, GCPhysCR3);
3244	switch (pVCpu->pgm.s.enmShadowMode)
3245	{
3246	case PGMMODE_32_BIT:
3247	rc2 = PGM_BTH_NAME_32BIT_32BIT(Enter)(pVCpu, GCPhysCR3);
3248	break;
3249	case PGMMODE_PAE:
3250	case PGMMODE_PAE_NX:
3251	rc2 = PGM_BTH_NAME_PAE_32BIT(Enter)(pVCpu, GCPhysCR3);
3252	break;
3253	case PGMMODE_NESTED:
3254	rc2 = PGM_BTH_NAME_NESTED_32BIT(Enter)(pVCpu, GCPhysCR3);
3255	break;
3256	case PGMMODE_EPT:
3257	rc2 = PGM_BTH_NAME_EPT_32BIT(Enter)(pVCpu, GCPhysCR3);
3258	break;
3259	case PGMMODE_AMD64:
3260	case PGMMODE_AMD64_NX:
3261	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3262	default: AssertFailed(); break;
3263	}
3264	break;
3265
3266	case PGMMODE_PAE_NX:
3267	case PGMMODE_PAE:
3268	{
3269	uint32_t u32Dummy, u32Features;
3270
3271	CPUMGetGuestCpuId(pVCpu, 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
3272	if (!(u32Features & X86_CPUID_FEATURE_EDX_PAE))
3273	return VMSetRuntimeError(pVM, VMSETRTERR_FLAGS_FATAL, "PAEmode",
3274	N_("The guest is trying to switch to the PAE mode which is currently disabled by default in VirtualBox. PAE support can be enabled using the VM settings (General/Advanced)"));
3275
3276	GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & X86_CR3_PAE_PAGE_MASK;
3277	rc = PGM_GST_NAME_PAE(Enter)(pVCpu, GCPhysCR3);
3278	switch (pVCpu->pgm.s.enmShadowMode)
3279	{
3280	case PGMMODE_PAE:
3281	case PGMMODE_PAE_NX:
3282	rc2 = PGM_BTH_NAME_PAE_PAE(Enter)(pVCpu, GCPhysCR3);
3283	break;
3284	case PGMMODE_NESTED:
3285	rc2 = PGM_BTH_NAME_NESTED_PAE(Enter)(pVCpu, GCPhysCR3);
3286	break;
3287	case PGMMODE_EPT:
3288	rc2 = PGM_BTH_NAME_EPT_PAE(Enter)(pVCpu, GCPhysCR3);
3289	break;
3290	case PGMMODE_32_BIT:
3291	case PGMMODE_AMD64:
3292	case PGMMODE_AMD64_NX:
3293	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3294	default: AssertFailed(); break;
3295	}
3296	break;
3297	}
3298
3299	#ifdef VBOX_WITH_64_BITS_GUESTS
3300	case PGMMODE_AMD64_NX:
3301	case PGMMODE_AMD64:
3302	GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & UINT64_C(0xfffffffffffff000); /** @todo define this mask! */
3303	rc = PGM_GST_NAME_AMD64(Enter)(pVCpu, GCPhysCR3);
3304	switch (pVCpu->pgm.s.enmShadowMode)
3305	{
3306	case PGMMODE_AMD64:
3307	case PGMMODE_AMD64_NX:
3308	rc2 = PGM_BTH_NAME_AMD64_AMD64(Enter)(pVCpu, GCPhysCR3);
3309	break;
3310	case PGMMODE_NESTED:
3311	rc2 = PGM_BTH_NAME_NESTED_AMD64(Enter)(pVCpu, GCPhysCR3);
3312	break;
3313	case PGMMODE_EPT:
3314	rc2 = PGM_BTH_NAME_EPT_AMD64(Enter)(pVCpu, GCPhysCR3);
3315	break;
3316	case PGMMODE_32_BIT:
3317	case PGMMODE_PAE:
3318	case PGMMODE_PAE_NX:
3319	AssertMsgFailed(("Should use AMD64 shadow mode!\n"));
3320	default: AssertFailed(); break;
3321	}
3322	break;
3323	#endif
3324
3325	default:
3326	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
3327	rc = VERR_NOT_IMPLEMENTED;
3328	break;
3329	}
3330
3331	/* status codes. */
3332	AssertRC(rc);
3333	AssertRC(rc2);
3334	if (RT_SUCCESS(rc))
3335	{
3336	rc = rc2;
3337	if (RT_SUCCESS(rc)) /* no informational status codes. */
3338	rc = VINF_SUCCESS;
3339	}
3340
3341	/* Notify HWACCM as well. */
3342	HWACCMR3PagingModeChanged(pVM, pVCpu, pVCpu->pgm.s.enmShadowMode, pVCpu->pgm.s.enmGuestMode);
3343	return rc;
3344	}
3345
3346	/**
3347	* Release the pgm lock if owned by the current VCPU
3348	*
3349	* @param pVM The VM to operate on.
3350	*/
3351	VMMR3DECL(void) PGMR3ReleaseOwnedLocks(PVM pVM)
3352	{
3353	while (PDMCritSectIsOwner(&pVM->pgm.s.CritSect))
3354	PDMCritSectLeave(&pVM->pgm.s.CritSect);
3355	}
3356
3357	/**
3358	* Called by pgmPoolFlushAllInt prior to flushing the pool.
3359	*
3360	* @returns VBox status code, fully asserted.
3361	* @param pVM The VM handle.
3362	* @param pVCpu The VMCPU to operate on.
3363	*/
3364	int pgmR3ExitShadowModeBeforePoolFlush(PVM pVM, PVMCPU pVCpu)
3365	{
3366	/* Unmap the old CR3 value before flushing everything. */
3367	int rc = PGM_BTH_PFN(UnmapCR3, pVCpu)(pVCpu);
3368	AssertRC(rc);
3369
3370	/* Exit the current shadow paging mode as well; nested paging and EPT use a root CR3 which will get flushed here. */
3371	rc = PGM_SHW_PFN(Exit, pVCpu)(pVCpu);
3372	AssertRC(rc);
3373	Assert(pVCpu->pgm.s.pShwPageCR3R3 == NULL);
3374	return rc;
3375	}
3376
3377
3378	/**
3379	* Called by pgmPoolFlushAllInt after flushing the pool.
3380	*
3381	* @returns VBox status code, fully asserted.
3382	* @param pVM The VM handle.
3383	* @param pVCpu The VMCPU to operate on.
3384	*/
3385	int pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu)
3386	{
3387	pVCpu->pgm.s.enmShadowMode = PGMMODE_INVALID;
3388	int rc = PGMR3ChangeMode(pVM, pVCpu, PGMGetGuestMode(pVCpu));
3389	Assert(VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
3390	AssertRCReturn(rc, rc);
3391	AssertRCSuccessReturn(rc, VERR_IPE_UNEXPECTED_INFO_STATUS);
3392
3393	Assert(pVCpu->pgm.s.pShwPageCR3R3 != NULL);
3394	AssertMsg( pVCpu->pgm.s.enmShadowMode >= PGMMODE_NESTED
3395	\|\| CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu),
3396	("%RHp != %RHp %s\n", (RTHCPHYS)CPUMGetHyperCR3(pVCpu), PGMGetHyperCR3(pVCpu), PGMGetModeName(pVCpu->pgm.s.enmShadowMode)));
3397	return rc;
3398	}
3399
3400
3401	/**
3402	* Dumps a PAE shadow page table.
3403	*
3404	* @returns VBox status code (VINF_SUCCESS).
3405	* @param pVM The VM handle.
3406	* @param pPT Pointer to the page table.
3407	* @param u64Address The virtual address of the page table starts.
3408	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
3409	* @param cMaxDepth The maxium depth.
3410	* @param pHlp Pointer to the output functions.
3411	*/
3412	static int pgmR3DumpHierarchyHCPaePT(PVM pVM, PX86PTPAE pPT, uint64_t u64Address, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3413	{
3414	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
3415	{
3416	X86PTEPAE Pte = pPT->a[i];
3417	if (Pte.n.u1Present)
3418	{
3419	pHlp->pfnPrintf(pHlp,
3420	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3421	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n"
3422	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n",
3423	u64Address + ((uint64_t)i << X86_PT_PAE_SHIFT),
3424	Pte.n.u1Write ? 'W' : 'R',
3425	Pte.n.u1User ? 'U' : 'S',
3426	Pte.n.u1Accessed ? 'A' : '-',
3427	Pte.n.u1Dirty ? 'D' : '-',
3428	Pte.n.u1Global ? 'G' : '-',
3429	Pte.n.u1WriteThru ? "WT" : "--",
3430	Pte.n.u1CacheDisable? "CD" : "--",
3431	Pte.n.u1PAT ? "AT" : "--",
3432	Pte.n.u1NoExecute ? "NX" : "--",
3433	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3434	Pte.u & RT_BIT(10) ? '1' : '0',
3435	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED? 'v' : '-',
3436	Pte.u & X86_PTE_PAE_PG_MASK);
3437	}
3438	}
3439	return VINF_SUCCESS;
3440	}
3441
3442
3443	/**
3444	* Dumps a PAE shadow page directory table.
3445	*
3446	* @returns VBox status code (VINF_SUCCESS).
3447	* @param pVM The VM handle.
3448	* @param HCPhys The physical address of the page directory table.
3449	* @param u64Address The virtual address of the page table starts.
3450	* @param cr4 The CR4, PSE is currently used.
3451	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
3452	* @param cMaxDepth The maxium depth.
3453	* @param pHlp Pointer to the output functions.
3454	*/
3455	static int pgmR3DumpHierarchyHCPaePD(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3456	{
3457	PX86PDPAE pPD = (PX86PDPAE)MMPagePhys2Page(pVM, HCPhys);
3458	if (!pPD)
3459	{
3460	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory at HCPhys=%RHp was not found in the page pool!\n",
3461	fLongMode ? 16 : 8, u64Address, HCPhys);
3462	return VERR_INVALID_PARAMETER;
3463	}
3464	const bool fBigPagesSupported = fLongMode \|\| !!(cr4 & X86_CR4_PSE);
3465
3466	int rc = VINF_SUCCESS;
3467	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
3468	{
3469	X86PDEPAE Pde = pPD->a[i];
3470	if (Pde.n.u1Present)
3471	{
3472	if (fBigPagesSupported && Pde.b.u1Size)
3473	pHlp->pfnPrintf(pHlp,
3474	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3475	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n"
3476	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n",
3477	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
3478	Pde.b.u1Write ? 'W' : 'R',
3479	Pde.b.u1User ? 'U' : 'S',
3480	Pde.b.u1Accessed ? 'A' : '-',
3481	Pde.b.u1Dirty ? 'D' : '-',
3482	Pde.b.u1Global ? 'G' : '-',
3483	Pde.b.u1WriteThru ? "WT" : "--",
3484	Pde.b.u1CacheDisable? "CD" : "--",
3485	Pde.b.u1PAT ? "AT" : "--",
3486	Pde.b.u1NoExecute ? "NX" : "--",
3487	Pde.u & RT_BIT_64(9) ? '1' : '0',
3488	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3489	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3490	Pde.u & X86_PDE_PAE_PG_MASK);
3491	else
3492	{
3493	pHlp->pfnPrintf(pHlp,
3494	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
3495	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n"
3496	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n",
3497	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
3498	Pde.n.u1Write ? 'W' : 'R',
3499	Pde.n.u1User ? 'U' : 'S',
3500	Pde.n.u1Accessed ? 'A' : '-',
3501	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3502	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3503	Pde.n.u1WriteThru ? "WT" : "--",
3504	Pde.n.u1CacheDisable? "CD" : "--",
3505	Pde.n.u1NoExecute ? "NX" : "--",
3506	Pde.u & RT_BIT_64(9) ? '1' : '0',
3507	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3508	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3509	Pde.u & X86_PDE_PAE_PG_MASK);
3510	if (cMaxDepth >= 1)
3511	{
3512	/** @todo what about using the page pool for mapping PTs? */
3513	uint64_t u64AddressPT = u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT);
3514	RTHCPHYS HCPhysPT = Pde.u & X86_PDE_PAE_PG_MASK;
3515	PX86PTPAE pPT = NULL;
3516	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
3517	pPT = (PX86PTPAE)MMPagePhys2Page(pVM, HCPhysPT);
3518	else
3519	{
3520	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
3521	{
3522	uint64_t off = u64AddressPT - pMap->GCPtr;
3523	if (off < pMap->cb)
3524	{
3525	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
3526	const int iSub = (int)((off >> X86_PD_PAE_SHIFT) & 1); /* MSC is a pain sometimes */
3527	if ((iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0) != HCPhysPT)
3528	pHlp->pfnPrintf(pHlp, "%0*llx error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
3529	fLongMode ? 16 : 8, u64AddressPT, iPDE,
3530	iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0, HCPhysPT);
3531	pPT = &pMap->aPTs[iPDE].paPaePTsR3[iSub];
3532	}
3533	}
3534	}
3535	int rc2 = VERR_INVALID_PARAMETER;
3536	if (pPT)
3537	rc2 = pgmR3DumpHierarchyHCPaePT(pVM, pPT, u64AddressPT, fLongMode, cMaxDepth - 1, pHlp);
3538	else
3539	pHlp->pfnPrintf(pHlp, "%0*llx error! Page table at HCPhys=%RHp was not found in the page pool!\n",
3540	fLongMode ? 16 : 8, u64AddressPT, HCPhysPT);
3541	if (rc2 < rc && RT_SUCCESS(rc))
3542	rc = rc2;
3543	}
3544	}
3545	}
3546	}
3547	return rc;
3548	}
3549
3550
3551	/**
3552	* Dumps a PAE shadow page directory pointer table.
3553	*
3554	* @returns VBox status code (VINF_SUCCESS).
3555	* @param pVM The VM handle.
3556	* @param HCPhys The physical address of the page directory pointer table.
3557	* @param u64Address The virtual address of the page table starts.
3558	* @param cr4 The CR4, PSE is currently used.
3559	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
3560	* @param cMaxDepth The maxium depth.
3561	* @param pHlp Pointer to the output functions.
3562	*/
3563	static int pgmR3DumpHierarchyHCPaePDPT(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3564	{
3565	PX86PDPT pPDPT = (PX86PDPT)MMPagePhys2Page(pVM, HCPhys);
3566	if (!pPDPT)
3567	{
3568	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory pointer table at HCPhys=%RHp was not found in the page pool!\n",
3569	fLongMode ? 16 : 8, u64Address, HCPhys);
3570	return VERR_INVALID_PARAMETER;
3571	}
3572
3573	int rc = VINF_SUCCESS;
3574	const unsigned c = fLongMode ? RT_ELEMENTS(pPDPT->a) : X86_PG_PAE_PDPE_ENTRIES;
3575	for (unsigned i = 0; i < c; i++)
3576	{
3577	X86PDPE Pdpe = pPDPT->a[i];
3578	if (Pdpe.n.u1Present)
3579	{
3580	if (fLongMode)
3581	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
3582	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
3583	u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
3584	Pdpe.lm.u1Write ? 'W' : 'R',
3585	Pdpe.lm.u1User ? 'U' : 'S',
3586	Pdpe.lm.u1Accessed ? 'A' : '-',
3587	Pdpe.lm.u3Reserved & 1? '?' : '.', /* ignored */
3588	Pdpe.lm.u3Reserved & 4? '!' : '.', /* mbz */
3589	Pdpe.lm.u1WriteThru ? "WT" : "--",
3590	Pdpe.lm.u1CacheDisable? "CD" : "--",
3591	Pdpe.lm.u3Reserved & 2? "!" : "..",/* mbz */
3592	Pdpe.lm.u1NoExecute ? "NX" : "--",
3593	Pdpe.u & RT_BIT(9) ? '1' : '0',
3594	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3595	Pdpe.u & RT_BIT(11) ? '1' : '0',
3596	Pdpe.u & X86_PDPE_PG_MASK);
3597	else
3598	pHlp->pfnPrintf(pHlp, /P G WT CD AT NX 4M a p ? /
3599	"%08x 0 \| P %c %s %s %s %s .. %c%c%c %016llx\n",
3600	i << X86_PDPT_SHIFT,
3601	Pdpe.n.u4Reserved & 1? '!' : '.', /* mbz */
3602	Pdpe.n.u4Reserved & 4? '!' : '.', /* mbz */
3603	Pdpe.n.u1WriteThru ? "WT" : "--",
3604	Pdpe.n.u1CacheDisable? "CD" : "--",
3605	Pdpe.n.u4Reserved & 2? "!" : "..",/* mbz */
3606	Pdpe.u & RT_BIT(9) ? '1' : '0',
3607	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3608	Pdpe.u & RT_BIT(11) ? '1' : '0',
3609	Pdpe.u & X86_PDPE_PG_MASK);
3610	if (cMaxDepth >= 1)
3611	{
3612	int rc2 = pgmR3DumpHierarchyHCPaePD(pVM, Pdpe.u & X86_PDPE_PG_MASK, u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
3613	cr4, fLongMode, cMaxDepth - 1, pHlp);
3614	if (rc2 < rc && RT_SUCCESS(rc))
3615	rc = rc2;
3616	}
3617	}
3618	}
3619	return rc;
3620	}
3621
3622
3623	/**
3624	* Dumps a 32-bit shadow page table.
3625	*
3626	* @returns VBox status code (VINF_SUCCESS).
3627	* @param pVM The VM handle.
3628	* @param HCPhys The physical address of the table.
3629	* @param cr4 The CR4, PSE is currently used.
3630	* @param cMaxDepth The maxium depth.
3631	* @param pHlp Pointer to the output functions.
3632	*/
3633	static int pgmR3DumpHierarchyHcPaePML4(PVM pVM, RTHCPHYS HCPhys, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3634	{
3635	PX86PML4 pPML4 = (PX86PML4)MMPagePhys2Page(pVM, HCPhys);
3636	if (!pPML4)
3637	{
3638	pHlp->pfnPrintf(pHlp, "Page map level 4 at HCPhys=%RHp was not found in the page pool!\n", HCPhys);
3639	return VERR_INVALID_PARAMETER;
3640	}
3641
3642	int rc = VINF_SUCCESS;
3643	for (unsigned i = 0; i < RT_ELEMENTS(pPML4->a); i++)
3644	{
3645	X86PML4E Pml4e = pPML4->a[i];
3646	if (Pml4e.n.u1Present)
3647	{
3648	uint64_t u64Address = ((uint64_t)i << X86_PML4_SHIFT) \| (((uint64_t)i >> (X86_PML4_SHIFT - X86_PDPT_SHIFT - 1)) * 0xffff000000000000ULL);
3649	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
3650	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
3651	u64Address,
3652	Pml4e.n.u1Write ? 'W' : 'R',
3653	Pml4e.n.u1User ? 'U' : 'S',
3654	Pml4e.n.u1Accessed ? 'A' : '-',
3655	Pml4e.n.u3Reserved & 1? '?' : '.', /* ignored */
3656	Pml4e.n.u3Reserved & 4? '!' : '.', /* mbz */
3657	Pml4e.n.u1WriteThru ? "WT" : "--",
3658	Pml4e.n.u1CacheDisable? "CD" : "--",
3659	Pml4e.n.u3Reserved & 2? "!" : "..",/* mbz */
3660	Pml4e.n.u1NoExecute ? "NX" : "--",
3661	Pml4e.u & RT_BIT(9) ? '1' : '0',
3662	Pml4e.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
3663	Pml4e.u & RT_BIT(11) ? '1' : '0',
3664	Pml4e.u & X86_PML4E_PG_MASK);
3665
3666	if (cMaxDepth >= 1)
3667	{
3668	int rc2 = pgmR3DumpHierarchyHCPaePDPT(pVM, Pml4e.u & X86_PML4E_PG_MASK, u64Address, cr4, true, cMaxDepth - 1, pHlp);
3669	if (rc2 < rc && RT_SUCCESS(rc))
3670	rc = rc2;
3671	}
3672	}
3673	}
3674	return rc;
3675	}
3676
3677
3678	/**
3679	* Dumps a 32-bit shadow page table.
3680	*
3681	* @returns VBox status code (VINF_SUCCESS).
3682	* @param pVM The VM handle.
3683	* @param pPT Pointer to the page table.
3684	* @param u32Address The virtual address this table starts at.
3685	* @param pHlp Pointer to the output functions.
3686	*/
3687	int pgmR3DumpHierarchyHC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, PCDBGFINFOHLP pHlp)
3688	{
3689	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
3690	{
3691	X86PTE Pte = pPT->a[i];
3692	if (Pte.n.u1Present)
3693	{
3694	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3695	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
3696	u32Address + (i << X86_PT_SHIFT),
3697	Pte.n.u1Write ? 'W' : 'R',
3698	Pte.n.u1User ? 'U' : 'S',
3699	Pte.n.u1Accessed ? 'A' : '-',
3700	Pte.n.u1Dirty ? 'D' : '-',
3701	Pte.n.u1Global ? 'G' : '-',
3702	Pte.n.u1WriteThru ? "WT" : "--",
3703	Pte.n.u1CacheDisable? "CD" : "--",
3704	Pte.n.u1PAT ? "AT" : "--",
3705	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3706	Pte.u & RT_BIT(10) ? '1' : '0',
3707	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
3708	Pte.u & X86_PDE_PG_MASK);
3709	}
3710	}
3711	return VINF_SUCCESS;
3712	}
3713
3714
3715	/**
3716	* Dumps a 32-bit shadow page directory and page tables.
3717	*
3718	* @returns VBox status code (VINF_SUCCESS).
3719	* @param pVM The VM handle.
3720	* @param cr3 The root of the hierarchy.
3721	* @param cr4 The CR4, PSE is currently used.
3722	* @param cMaxDepth How deep into the hierarchy the dumper should go.
3723	* @param pHlp Pointer to the output functions.
3724	*/
3725	int pgmR3DumpHierarchyHC32BitPD(PVM pVM, uint32_t cr3, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3726	{
3727	PX86PD pPD = (PX86PD)MMPagePhys2Page(pVM, cr3 & X86_CR3_PAGE_MASK);
3728	if (!pPD)
3729	{
3730	pHlp->pfnPrintf(pHlp, "Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK);
3731	return VERR_INVALID_PARAMETER;
3732	}
3733
3734	int rc = VINF_SUCCESS;
3735	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
3736	{
3737	X86PDE Pde = pPD->a[i];
3738	if (Pde.n.u1Present)
3739	{
3740	const uint32_t u32Address = i << X86_PD_SHIFT;
3741	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
3742	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3743	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
3744	u32Address,
3745	Pde.b.u1Write ? 'W' : 'R',
3746	Pde.b.u1User ? 'U' : 'S',
3747	Pde.b.u1Accessed ? 'A' : '-',
3748	Pde.b.u1Dirty ? 'D' : '-',
3749	Pde.b.u1Global ? 'G' : '-',
3750	Pde.b.u1WriteThru ? "WT" : "--",
3751	Pde.b.u1CacheDisable? "CD" : "--",
3752	Pde.b.u1PAT ? "AT" : "--",
3753	Pde.u & RT_BIT_64(9) ? '1' : '0',
3754	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3755	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3756	Pde.u & X86_PDE4M_PG_MASK);
3757	else
3758	{
3759	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
3760	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
3761	u32Address,
3762	Pde.n.u1Write ? 'W' : 'R',
3763	Pde.n.u1User ? 'U' : 'S',
3764	Pde.n.u1Accessed ? 'A' : '-',
3765	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3766	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3767	Pde.n.u1WriteThru ? "WT" : "--",
3768	Pde.n.u1CacheDisable? "CD" : "--",
3769	Pde.u & RT_BIT_64(9) ? '1' : '0',
3770	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
3771	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
3772	Pde.u & X86_PDE_PG_MASK);
3773	if (cMaxDepth >= 1)
3774	{
3775	/** @todo what about using the page pool for mapping PTs? */
3776	RTHCPHYS HCPhys = Pde.u & X86_PDE_PG_MASK;
3777	PX86PT pPT = NULL;
3778	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
3779	pPT = (PX86PT)MMPagePhys2Page(pVM, HCPhys);
3780	else
3781	{
3782	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
3783	if (u32Address - pMap->GCPtr < pMap->cb)
3784	{
3785	int iPDE = (u32Address - pMap->GCPtr) >> X86_PD_SHIFT;
3786	if (pMap->aPTs[iPDE].HCPhysPT != HCPhys)
3787	pHlp->pfnPrintf(pHlp, "%08x error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
3788	u32Address, iPDE, pMap->aPTs[iPDE].HCPhysPT, HCPhys);
3789	pPT = pMap->aPTs[iPDE].pPTR3;
3790	}
3791	}
3792	int rc2 = VERR_INVALID_PARAMETER;
3793	if (pPT)
3794	rc2 = pgmR3DumpHierarchyHC32BitPT(pVM, pPT, u32Address, pHlp);
3795	else
3796	pHlp->pfnPrintf(pHlp, "%08x error! Page table at %#x was not found in the page pool!\n", u32Address, HCPhys);
3797	if (rc2 < rc && RT_SUCCESS(rc))
3798	rc = rc2;
3799	}
3800	}
3801	}
3802	}
3803
3804	return rc;
3805	}
3806
3807
3808	/**
3809	* Dumps a 32-bit shadow page table.
3810	*
3811	* @returns VBox status code (VINF_SUCCESS).
3812	* @param pVM The VM handle.
3813	* @param pPT Pointer to the page table.
3814	* @param u32Address The virtual address this table starts at.
3815	* @param PhysSearch Address to search for.
3816	*/
3817	int pgmR3DumpHierarchyGC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, RTGCPHYS PhysSearch)
3818	{
3819	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
3820	{
3821	X86PTE Pte = pPT->a[i];
3822	if (Pte.n.u1Present)
3823	{
3824	Log(( /P R S A D G WT CD AT NX 4M a m d /
3825	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
3826	u32Address + (i << X86_PT_SHIFT),
3827	Pte.n.u1Write ? 'W' : 'R',
3828	Pte.n.u1User ? 'U' : 'S',
3829	Pte.n.u1Accessed ? 'A' : '-',
3830	Pte.n.u1Dirty ? 'D' : '-',
3831	Pte.n.u1Global ? 'G' : '-',
3832	Pte.n.u1WriteThru ? "WT" : "--",
3833	Pte.n.u1CacheDisable? "CD" : "--",
3834	Pte.n.u1PAT ? "AT" : "--",
3835	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
3836	Pte.u & RT_BIT(10) ? '1' : '0',
3837	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
3838	Pte.u & X86_PDE_PG_MASK));
3839
3840	if ((Pte.u & X86_PDE_PG_MASK) == PhysSearch)
3841	{
3842	uint64_t fPageShw = 0;
3843	RTHCPHYS pPhysHC = 0;
3844
3845	/** @todo SMP support!! */
3846	PGMShwGetPage(&pVM->aCpus[0], (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), &fPageShw, &pPhysHC);
3847	Log(("Found %RGp at %RGv -> flags=%llx\n", PhysSearch, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), fPageShw));
3848	}
3849	}
3850	}
3851	return VINF_SUCCESS;
3852	}
3853
3854
3855	/**
3856	* Dumps a 32-bit guest page directory and page tables.
3857	*
3858	* @returns VBox status code (VINF_SUCCESS).
3859	* @param pVM The VM handle.
3860	* @param cr3 The root of the hierarchy.
3861	* @param cr4 The CR4, PSE is currently used.
3862	* @param PhysSearch Address to search for.
3863	*/
3864	VMMR3DECL(int) PGMR3DumpHierarchyGC(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCPHYS PhysSearch)
3865	{
3866	bool fLongMode = false;
3867	const unsigned cch = fLongMode ? 16 : 8; NOREF(cch);
3868	PX86PD pPD = 0;
3869
3870	int rc = PGM_GCPHYS_2_PTR(pVM, cr3 & X86_CR3_PAGE_MASK, &pPD);
3871	if (RT_FAILURE(rc) \|\| !pPD)
3872	{
3873	Log(("Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK));
3874	return VERR_INVALID_PARAMETER;
3875	}
3876
3877	Log(("cr3=%08x cr4=%08x%s\n"
3878	"%-*s P - Present\n"
3879	"%-*s \| R/W - Read (0) / Write (1)\n"
3880	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
3881	"%-*s \| \| \| A - Accessed\n"
3882	"%-*s \| \| \| \| D - Dirty\n"
3883	"%-*s \| \| \| \| \| G - Global\n"
3884	"%-*s \| \| \| \| \| \| WT - Write thru\n"
3885	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
3886	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
3887	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
3888	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
3889	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
3890	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
3891	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
3892	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
3893	- W U - - - -- -- -- -- -- 010 */
3894	, cr3, cr4, fLongMode ? " Long Mode" : "",
3895	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
3896	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address"));
3897
3898	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
3899	{
3900	X86PDE Pde = pPD->a[i];
3901	if (Pde.n.u1Present)
3902	{
3903	const uint32_t u32Address = i << X86_PD_SHIFT;
3904
3905	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
3906	Log(( /P R S A D G WT CD AT NX 4M a m d /
3907	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
3908	u32Address,
3909	Pde.b.u1Write ? 'W' : 'R',
3910	Pde.b.u1User ? 'U' : 'S',
3911	Pde.b.u1Accessed ? 'A' : '-',
3912	Pde.b.u1Dirty ? 'D' : '-',
3913	Pde.b.u1Global ? 'G' : '-',
3914	Pde.b.u1WriteThru ? "WT" : "--",
3915	Pde.b.u1CacheDisable? "CD" : "--",
3916	Pde.b.u1PAT ? "AT" : "--",
3917	Pde.u & RT_BIT(9) ? '1' : '0',
3918	Pde.u & RT_BIT(10) ? '1' : '0',
3919	Pde.u & RT_BIT(11) ? '1' : '0',
3920	pgmGstGet4MBPhysPage(&pVM->pgm.s, Pde)));
3921	/** @todo PhysSearch */
3922	else
3923	{
3924	Log(( /P R S A D G WT CD AT NX 4M a m d /
3925	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
3926	u32Address,
3927	Pde.n.u1Write ? 'W' : 'R',
3928	Pde.n.u1User ? 'U' : 'S',
3929	Pde.n.u1Accessed ? 'A' : '-',
3930	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
3931	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
3932	Pde.n.u1WriteThru ? "WT" : "--",
3933	Pde.n.u1CacheDisable? "CD" : "--",
3934	Pde.u & RT_BIT(9) ? '1' : '0',
3935	Pde.u & RT_BIT(10) ? '1' : '0',
3936	Pde.u & RT_BIT(11) ? '1' : '0',
3937	Pde.u & X86_PDE_PG_MASK));
3938	////if (cMaxDepth >= 1)
3939	{
3940	/** @todo what about using the page pool for mapping PTs? */
3941	RTGCPHYS GCPhys = Pde.u & X86_PDE_PG_MASK;
3942	PX86PT pPT = NULL;
3943
3944	rc = PGM_GCPHYS_2_PTR(pVM, GCPhys, &pPT);
3945
3946	int rc2 = VERR_INVALID_PARAMETER;
3947	if (pPT)
3948	rc2 = pgmR3DumpHierarchyGC32BitPT(pVM, pPT, u32Address, PhysSearch);
3949	else
3950	Log(("%08x error! Page table at %#x was not found in the page pool!\n", u32Address, GCPhys));
3951	if (rc2 < rc && RT_SUCCESS(rc))
3952	rc = rc2;
3953	}
3954	}
3955	}
3956	}
3957
3958	return rc;
3959	}
3960
3961
3962	/**
3963	* Dumps a page table hierarchy use only physical addresses and cr4/lm flags.
3964	*
3965	* @returns VBox status code (VINF_SUCCESS).
3966	* @param pVM The VM handle.
3967	* @param cr3 The root of the hierarchy.
3968	* @param cr4 The cr4, only PAE and PSE is currently used.
3969	* @param fLongMode Set if long mode, false if not long mode.
3970	* @param cMaxDepth Number of levels to dump.
3971	* @param pHlp Pointer to the output functions.
3972	*/
3973	VMMR3DECL(int) PGMR3DumpHierarchyHC(PVM pVM, uint64_t cr3, uint64_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
3974	{
3975	if (!pHlp)
3976	pHlp = DBGFR3InfoLogHlp();
3977	if (!cMaxDepth)
3978	return VINF_SUCCESS;
3979	const unsigned cch = fLongMode ? 16 : 8;
3980	pHlp->pfnPrintf(pHlp,
3981	"cr3=%08x cr4=%08x%s\n"
3982	"%-*s P - Present\n"
3983	"%-*s \| R/W - Read (0) / Write (1)\n"
3984	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
3985	"%-*s \| \| \| A - Accessed\n"
3986	"%-*s \| \| \| \| D - Dirty\n"
3987	"%-*s \| \| \| \| \| G - Global\n"
3988	"%-*s \| \| \| \| \| \| WT - Write thru\n"
3989	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
3990	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
3991	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
3992	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
3993	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
3994	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
3995	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
3996	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
3997	- W U - - - -- -- -- -- -- 010 */
3998	, cr3, cr4, fLongMode ? " Long Mode" : "",
3999	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
4000	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
4001	if (cr4 & X86_CR4_PAE)
4002	{
4003	if (fLongMode)
4004	return pgmR3DumpHierarchyHcPaePML4(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
4005	return pgmR3DumpHierarchyHCPaePDPT(pVM, cr3 & X86_CR3_PAE_PAGE_MASK, 0, cr4, false, cMaxDepth, pHlp);
4006	}
4007	return pgmR3DumpHierarchyHC32BitPD(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
4008	}
4009
4010	#ifdef VBOX_WITH_DEBUGGER
4011
4012	/**
4013	* The '.pgmram' command.
4014	*
4015	* @returns VBox status.
4016	* @param pCmd Pointer to the command descriptor (as registered).
4017	* @param pCmdHlp Pointer to command helper functions.
4018	* @param pVM Pointer to the current VM (if any).
4019	* @param paArgs Pointer to (readonly) array of arguments.
4020	* @param cArgs Number of arguments in the array.
4021	*/
4022	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4023	{
4024	/*
4025	* Validate input.
4026	*/
4027	if (!pVM)
4028	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4029	if (!pVM->pgm.s.pRamRangesRC)
4030	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no Ram is registered.\n");
4031
4032	/*
4033	* Dump the ranges.
4034	*/
4035	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "From - To (incl) pvHC\n");
4036	PPGMRAMRANGE pRam;
4037	for (pRam = pVM->pgm.s.pRamRangesR3; pRam; pRam = pRam->pNextR3)
4038	{
4039	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
4040	"%RGp - %RGp %p\n",
4041	pRam->GCPhys, pRam->GCPhysLast, pRam->pvR3);
4042	if (RT_FAILURE(rc))
4043	return rc;
4044	}
4045
4046	return VINF_SUCCESS;
4047	}
4048
4049
4050	/**
4051	* The '.pgmerror' and '.pgmerroroff' commands.
4052	*
4053	* @returns VBox status.
4054	* @param pCmd Pointer to the command descriptor (as registered).
4055	* @param pCmdHlp Pointer to command helper functions.
4056	* @param pVM Pointer to the current VM (if any).
4057	* @param paArgs Pointer to (readonly) array of arguments.
4058	* @param cArgs Number of arguments in the array.
4059	*/
4060	static DECLCALLBACK(int) pgmR3CmdError(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4061	{
4062	/*
4063	* Validate input.
4064	*/
4065	if (!pVM)
4066	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4067	AssertReturn(cArgs == 0 \|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_STRING),
4068	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Hit bug in the parser.\n"));
4069
4070	if (!cArgs)
4071	{
4072	/*
4073	* Print the list of error injection locations with status.
4074	*/
4075	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "PGM error inject locations:\n");
4076	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " handy - %RTbool\n", pVM->pgm.s.fErrInjHandyPages);
4077	}
4078	else
4079	{
4080
4081	/*
4082	* String switch on where to inject the error.
4083	*/
4084	bool const fNewState = !strcmp(pCmd->pszCmd, "pgmerror");
4085	const char *pszWhere = paArgs[0].u.pszString;
4086	if (!strcmp(pszWhere, "handy"))
4087	ASMAtomicWriteBool(&pVM->pgm.s.fErrInjHandyPages, fNewState);
4088	else
4089	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid 'where' value: %s.\n", pszWhere);
4090	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "done\n");
4091	}
4092	return VINF_SUCCESS;
4093	}
4094
4095
4096	/**
4097	* The '.pgmsync' command.
4098	*
4099	* @returns VBox status.
4100	* @param pCmd Pointer to the command descriptor (as registered).
4101	* @param pCmdHlp Pointer to command helper functions.
4102	* @param pVM Pointer to the current VM (if any).
4103	* @param paArgs Pointer to (readonly) array of arguments.
4104	* @param cArgs Number of arguments in the array.
4105	*/
4106	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4107	{
4108	/** @todo SMP support */
4109	PVMCPU pVCpu = &pVM->aCpus[0];
4110
4111	/*
4112	* Validate input.
4113	*/
4114	if (!pVM)
4115	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4116
4117	/*
4118	* Force page directory sync.
4119	*/
4120	VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
4121
4122	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Forcing page directory sync.\n");
4123	if (RT_FAILURE(rc))
4124	return rc;
4125
4126	return VINF_SUCCESS;
4127	}
4128
4129
4130	#ifdef VBOX_STRICT
4131	/**
4132	* The '.pgmassertcr3' command.
4133	*
4134	* @returns VBox status.
4135	* @param pCmd Pointer to the command descriptor (as registered).
4136	* @param pCmdHlp Pointer to command helper functions.
4137	* @param pVM Pointer to the current VM (if any).
4138	* @param paArgs Pointer to (readonly) array of arguments.
4139	* @param cArgs Number of arguments in the array.
4140	*/
4141	static DECLCALLBACK(int) pgmR3CmdAssertCR3(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4142	{
4143	/** @todo SMP support!! */
4144	PVMCPU pVCpu = &pVM->aCpus[0];
4145
4146	/*
4147	* Validate input.
4148	*/
4149	if (!pVM)
4150	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4151
4152	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Checking shadow CR3 page tables for consistency.\n");
4153	if (RT_FAILURE(rc))
4154	return rc;
4155
4156	PGMAssertCR3(pVM, pVCpu, CPUMGetGuestCR3(pVCpu), CPUMGetGuestCR4(pVCpu));
4157
4158	return VINF_SUCCESS;
4159	}
4160	#endif /* VBOX_STRICT */
4161
4162
4163	/**
4164	* The '.pgmsyncalways' command.
4165	*
4166	* @returns VBox status.
4167	* @param pCmd Pointer to the command descriptor (as registered).
4168	* @param pCmdHlp Pointer to command helper functions.
4169	* @param pVM Pointer to the current VM (if any).
4170	* @param paArgs Pointer to (readonly) array of arguments.
4171	* @param cArgs Number of arguments in the array.
4172	*/
4173	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4174	{
4175	/** @todo SMP support!! */
4176	PVMCPU pVCpu = &pVM->aCpus[0];
4177
4178	/*
4179	* Validate input.
4180	*/
4181	if (!pVM)
4182	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4183
4184	/*
4185	* Force page directory sync.
4186	*/
4187	if (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_ALWAYS)
4188	{
4189	ASMAtomicAndU32(&pVCpu->pgm.s.fSyncFlags, ~PGM_SYNC_ALWAYS);
4190	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Disabled permanent forced page directory syncing.\n");
4191	}
4192	else
4193	{
4194	ASMAtomicOrU32(&pVCpu->pgm.s.fSyncFlags, PGM_SYNC_ALWAYS);
4195	VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
4196	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Enabled permanent forced page directory syncing.\n");
4197	}
4198	}
4199
4200
4201	/**
4202	* The '.pgmsyncalways' command.
4203	*
4204	* @returns VBox status.
4205	* @param pCmd Pointer to the command descriptor (as registered).
4206	* @param pCmdHlp Pointer to command helper functions.
4207	* @param pVM Pointer to the current VM (if any).
4208	* @param paArgs Pointer to (readonly) array of arguments.
4209	* @param cArgs Number of arguments in the array.
4210	*/
4211	static DECLCALLBACK(int) pgmR3CmdPhysToFile(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4212	{
4213	/*
4214	* Validate input.
4215	*/
4216	if (!pVM)
4217	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4218	if ( cArgs < 1
4219	\|\| cArgs > 2
4220	\|\| paArgs[0].enmType != DBGCVAR_TYPE_STRING
4221	\|\| ( cArgs > 1
4222	&& paArgs[1].enmType != DBGCVAR_TYPE_STRING))
4223	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: parser error, invalid arguments.\n");
4224	if ( cArgs >= 2
4225	&& strcmp(paArgs[1].u.pszString, "nozero"))
4226	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid 2nd argument '%s', must be 'nozero'.\n", paArgs[1].u.pszString);
4227	bool fIncZeroPgs = cArgs < 2;
4228
4229	/*
4230	* Open the output file and get the ram parameters.
4231	*/
4232	RTFILE hFile;
4233	int rc = RTFileOpen(&hFile, paArgs[0].u.pszString, RTFILE_O_WRITE \| RTFILE_O_CREATE_REPLACE \| RTFILE_O_DENY_WRITE);
4234	if (RT_FAILURE(rc))
4235	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: RTFileOpen(,'%s',) -> %Rrc.\n", paArgs[0].u.pszString, rc);
4236
4237	uint32_t cbRamHole = 0;
4238	CFGMR3QueryU32Def(CFGMR3GetRoot(pVM), "RamHoleSize", &cbRamHole, MM_RAM_HOLE_SIZE_DEFAULT);
4239	uint64_t cbRam = 0;
4240	CFGMR3QueryU64Def(CFGMR3GetRoot(pVM), "RamSize", &cbRam, 0);
4241	RTGCPHYS GCPhysEnd = cbRam + cbRamHole;
4242
4243	/*
4244	* Dump the physical memory, page by page.
4245	*/
4246	RTGCPHYS GCPhys = 0;
4247	char abZeroPg[PAGE_SIZE];
4248	RT_ZERO(abZeroPg);
4249
4250	pgmLock(pVM);
4251	for (PPGMRAMRANGE pRam = pVM->pgm.s.pRamRangesR3;
4252	pRam && pRam->GCPhys < GCPhysEnd && RT_SUCCESS(rc);
4253	pRam = pRam->pNextR3)
4254	{
4255	/* fill the gap */
4256	if (pRam->GCPhys > GCPhys && fIncZeroPgs)
4257	{
4258	while (pRam->GCPhys > GCPhys && RT_SUCCESS(rc))
4259	{
4260	rc = RTFileWrite(hFile, abZeroPg, PAGE_SIZE, NULL);
4261	GCPhys += PAGE_SIZE;
4262	}
4263	}
4264
4265	PCPGMPAGE pPage = &pRam->aPages[0];
4266	while (GCPhys < pRam->GCPhysLast && RT_SUCCESS(rc))
4267	{
4268	if ( PGM_PAGE_IS_ZERO(pPage)
4269	\|\| PGM_PAGE_IS_BALLOONED(pPage))
4270	{
4271	if (fIncZeroPgs)
4272	{
4273	rc = RTFileWrite(hFile, abZeroPg, PAGE_SIZE, NULL);
4274	if (RT_FAILURE(rc))
4275	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: RTFileWrite -> %Rrc at GCPhys=%RGp.\n", rc, GCPhys);
4276	}
4277	}
4278	else
4279	{
4280	switch (PGM_PAGE_GET_TYPE(pPage))
4281	{
4282	case PGMPAGETYPE_RAM:
4283	case PGMPAGETYPE_ROM_SHADOW: /* trouble?? */
4284	case PGMPAGETYPE_ROM:
4285	case PGMPAGETYPE_MMIO2:
4286	{
4287	void const *pvPage;
4288	PGMPAGEMAPLOCK Lock;
4289	rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, &pvPage, &Lock);
4290	if (RT_SUCCESS(rc))
4291	{
4292	rc = RTFileWrite(hFile, pvPage, PAGE_SIZE, NULL);
4293	PGMPhysReleasePageMappingLock(pVM, &Lock);
4294	if (RT_FAILURE(rc))
4295	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: RTFileWrite -> %Rrc at GCPhys=%RGp.\n", rc, GCPhys);
4296	}
4297	else
4298	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: PGMPhysGCPhys2CCPtrReadOnly -> %Rrc at GCPhys=%RGp.\n", rc, GCPhys);
4299	break;
4300	}
4301
4302	default:
4303	AssertFailed();
4304	case PGMPAGETYPE_MMIO2_ALIAS_MMIO:
4305	case PGMPAGETYPE_MMIO:
4306	if (fIncZeroPgs)
4307	{
4308	rc = RTFileWrite(hFile, abZeroPg, PAGE_SIZE, NULL);
4309	if (RT_FAILURE(rc))
4310	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: RTFileWrite -> %Rrc at GCPhys=%RGp.\n", rc, GCPhys);
4311	}
4312	break;
4313	}
4314	}
4315
4316
4317	/* advance */
4318	GCPhys += PAGE_SIZE;
4319	pPage++;
4320	}
4321	}
4322	pgmUnlock(pVM);
4323
4324	RTFileClose(hFile);
4325	if (RT_SUCCESS(rc))
4326	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Successfully saved physical memory to '%s'.\n", paArgs[0].u.pszString);
4327	return VINF_SUCCESS;
4328	}
4329
4330	#endif /* VBOX_WITH_DEBUGGER */
4331
4332	/**
4333	* pvUser argument of the pgmR3CheckIntegrity*Node callbacks.
4334	*/
4335	typedef struct PGMCHECKINTARGS
4336	{
4337	bool fLeftToRight; /*< true: left-to-right; false: right-to-left. /
4338	PPGMPHYSHANDLER pPrevPhys;
4339	PPGMVIRTHANDLER pPrevVirt;
4340	PPGMPHYS2VIRTHANDLER pPrevPhys2Virt;
4341	PVM pVM;
4342	} PGMCHECKINTARGS, *PPGMCHECKINTARGS;
4343
4344	/**
4345	* Validate a node in the physical handler tree.
4346	*
4347	* @returns 0 on if ok, other wise 1.
4348	* @param pNode The handler node.
4349	* @param pvUser pVM.
4350	*/
4351	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
4352	{
4353	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
4354	PPGMPHYSHANDLER pCur = (PPGMPHYSHANDLER)pNode;
4355	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
4356	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGp-%RGp %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4357	AssertReleaseMsg( !pArgs->pPrevPhys
4358	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys->Core.KeyLast > pCur->Core.Key),
4359	("pPrevPhys=%p %RGp-%RGp %s\n"
4360	" pCur=%p %RGp-%RGp %s\n",
4361	pArgs->pPrevPhys, pArgs->pPrevPhys->Core.Key, pArgs->pPrevPhys->Core.KeyLast, pArgs->pPrevPhys->pszDesc,
4362	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4363	pArgs->pPrevPhys = pCur;
4364	return 0;
4365	}
4366
4367
4368	/**
4369	* Validate a node in the virtual handler tree.
4370	*
4371	* @returns 0 on if ok, other wise 1.
4372	* @param pNode The handler node.
4373	* @param pvUser pVM.
4374	*/
4375	static DECLCALLBACK(int) pgmR3CheckIntegrityVirtHandlerNode(PAVLROGCPTRNODECORE pNode, void *pvUser)
4376	{
4377	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
4378	PPGMVIRTHANDLER pCur = (PPGMVIRTHANDLER)pNode;
4379	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
4380	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGv-%RGv %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4381	AssertReleaseMsg( !pArgs->pPrevVirt
4382	\|\| (pArgs->fLeftToRight ? pArgs->pPrevVirt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevVirt->Core.KeyLast > pCur->Core.Key),
4383	("pPrevVirt=%p %RGv-%RGv %s\n"
4384	" pCur=%p %RGv-%RGv %s\n",
4385	pArgs->pPrevVirt, pArgs->pPrevVirt->Core.Key, pArgs->pPrevVirt->Core.KeyLast, pArgs->pPrevVirt->pszDesc,
4386	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4387	for (unsigned iPage = 0; iPage < pCur->cPages; iPage++)
4388	{
4389	AssertReleaseMsg(pCur->aPhysToVirt[iPage].offVirtHandler == -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage]),
4390	("pCur=%p %RGv-%RGv %s\n"
4391	"iPage=%d offVirtHandle=%#x expected %#x\n",
4392	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc,
4393	iPage, pCur->aPhysToVirt[iPage].offVirtHandler, -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage])));
4394	}
4395	pArgs->pPrevVirt = pCur;
4396	return 0;
4397	}
4398
4399
4400	/**
4401	* Validate a node in the virtual handler tree.
4402	*
4403	* @returns 0 on if ok, other wise 1.
4404	* @param pNode The handler node.
4405	* @param pvUser pVM.
4406	*/
4407	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysToVirtHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
4408	{
4409	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
4410	PPGMPHYS2VIRTHANDLER pCur = (PPGMPHYS2VIRTHANDLER)pNode;
4411	AssertReleaseMsgReturn(!((uintptr_t)pCur & 3), ("\n"), 1);
4412	AssertReleaseMsgReturn(!(pCur->offVirtHandler & 3), ("\n"), 1);
4413	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGp-%RGp\n", pCur, pCur->Core.Key, pCur->Core.KeyLast));
4414	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
4415	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
4416	("pPrevPhys2Virt=%p %RGp-%RGp\n"
4417	" pCur=%p %RGp-%RGp\n",
4418	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
4419	pCur, pCur->Core.Key, pCur->Core.KeyLast));
4420	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
4421	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
4422	("pPrevPhys2Virt=%p %RGp-%RGp\n"
4423	" pCur=%p %RGp-%RGp\n",
4424	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
4425	pCur, pCur->Core.Key, pCur->Core.KeyLast));
4426	AssertReleaseMsg((pCur->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD),
4427	("pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4428	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
4429	if (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
4430	{
4431	PPGMPHYS2VIRTHANDLER pCur2 = pCur;
4432	for (;;)
4433	{
4434	pCur2 = (PPGMPHYS2VIRTHANDLER)((intptr_t)pCur + (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
4435	AssertReleaseMsg(pCur2 != pCur,
4436	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4437	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
4438	AssertReleaseMsg((pCur2->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == PGMPHYS2VIRTHANDLER_IN_TREE,
4439	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
4440	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4441	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
4442	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
4443	AssertReleaseMsg((pCur2->Core.Key ^ pCur->Core.Key) < PAGE_SIZE,
4444	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
4445	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4446	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
4447	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
4448	AssertReleaseMsg((pCur2->Core.KeyLast ^ pCur->Core.KeyLast) < PAGE_SIZE,
4449	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
4450	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
4451	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
4452	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
4453	if (!(pCur2->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
4454	break;
4455	}
4456	}
4457
4458	pArgs->pPrevPhys2Virt = pCur;
4459	return 0;
4460	}
4461
4462
4463	/**
4464	* Perform an integrity check on the PGM component.
4465	*
4466	* @returns VINF_SUCCESS if everything is fine.
4467	* @returns VBox error status after asserting on integrity breach.
4468	* @param pVM The VM handle.
4469	*/
4470	VMMR3DECL(int) PGMR3CheckIntegrity(PVM pVM)
4471	{
4472	AssertReleaseReturn(pVM->pgm.s.offVM, VERR_INTERNAL_ERROR);
4473
4474	/*
4475	* Check the trees.
4476	*/
4477	int cErrors = 0;
4478	const static PGMCHECKINTARGS s_LeftToRight = { true, NULL, NULL, NULL, pVM };
4479	const static PGMCHECKINTARGS s_RightToLeft = { false, NULL, NULL, NULL, pVM };
4480	PGMCHECKINTARGS Args = s_LeftToRight;
4481	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, true, pgmR3CheckIntegrityPhysHandlerNode, &Args);
4482	Args = s_RightToLeft;
4483	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, false, pgmR3CheckIntegrityPhysHandlerNode, &Args);
4484	Args = s_LeftToRight;
4485	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->VirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
4486	Args = s_RightToLeft;
4487	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->VirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
4488	Args = s_LeftToRight;
4489	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->HyperVirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
4490	Args = s_RightToLeft;
4491	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->HyperVirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
4492	Args = s_LeftToRight;
4493	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysToVirtHandlers, true, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
4494	Args = s_RightToLeft;
4495	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysToVirtHandlers, false, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
4496
4497	return !cErrors ? VINF_SUCCESS : VERR_INTERNAL_ERROR;
4498	}
4499

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source: vbox/trunk/src/VBox/VMM/PGM.cpp@ 29450

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