PGM.cpp@ 19420

Last change on this file since 19420 was 19141, checked in by vboxsync, 16 years ago
Action flags breakup. Fixed PGM saved state loading of 2.2.2 images. Reduced hacks in PATM state loading (fixups).
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 230.2 KB

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1	/* $Id: PGM.cpp 19141 2009-04-23 13:52:18Z vboxsync $ */
2	/** @file
3	* PGM - Page Manager and Monitor. (Mixing stuff here, not good?)
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22
23	/** @page pg_pgm PGM - The Page Manager and Monitor
24	*
25	* @see grp_pgm,
26	* @ref pg_pgm_pool,
27	* @ref pg_pgm_phys.
28	*
29	*
30	* @section sec_pgm_modes Paging Modes
31	*
32	* There are three memory contexts: Host Context (HC), Guest Context (GC)
33	* and intermediate context. When talking about paging HC can also be refered to
34	* as "host paging", and GC refered to as "shadow paging".
35	*
36	* We define three basic paging modes: 32-bit, PAE and AMD64. The host paging mode
37	* is defined by the host operating system. The mode used in the shadow paging mode
38	* depends on the host paging mode and what the mode the guest is currently in. The
39	* following relation between the two is defined:
40	*
41	* @verbatim
42	Host > 32-bit \| PAE \| AMD64 \|
43	Guest \| \| \| \|
44	==v================================
45	32-bit 32-bit PAE PAE
46	-------\|--------\|--------\|--------\|
47	PAE PAE PAE PAE
48	-------\|--------\|--------\|--------\|
49	AMD64 AMD64 AMD64 AMD64
50	-------\|--------\|--------\|--------\| @endverbatim
51	*
52	* All configuration except those in the diagonal (upper left) are expected to
53	* require special effort from the switcher (i.e. a bit slower).
54	*
55	*
56	*
57	*
58	* @section sec_pgm_shw The Shadow Memory Context
59	*
60	*
61	* [..]
62	*
63	* Because of guest context mappings requires PDPT and PML4 entries to allow
64	* writing on AMD64, the two upper levels will have fixed flags whatever the
65	* guest is thinking of using there. So, when shadowing the PD level we will
66	* calculate the effective flags of PD and all the higher levels. In legacy
67	* PAE mode this only applies to the PWT and PCD bits (the rest are
68	* ignored/reserved/MBZ). We will ignore those bits for the present.
69	*
70	*
71	*
72	* @section sec_pgm_int The Intermediate Memory Context
73	*
74	* The world switch goes thru an intermediate memory context which purpose it is
75	* to provide different mappings of the switcher code. All guest mappings are also
76	* present in this context.
77	*
78	* The switcher code is mapped at the same location as on the host, at an
79	* identity mapped location (physical equals virtual address), and at the
80	* hypervisor location. The identity mapped location is for when the world
81	* switches that involves disabling paging.
82	*
83	* PGM maintain page tables for 32-bit, PAE and AMD64 paging modes. This
84	* simplifies switching guest CPU mode and consistency at the cost of more
85	* code to do the work. All memory use for those page tables is located below
86	* 4GB (this includes page tables for guest context mappings).
87	*
88	*
89	* @subsection subsec_pgm_int_gc Guest Context Mappings
90	*
91	* During assignment and relocation of a guest context mapping the intermediate
92	* memory context is used to verify the new location.
93	*
94	* Guest context mappings are currently restricted to below 4GB, for reasons
95	* of simplicity. This may change when we implement AMD64 support.
96	*
97	*
98	*
99	*
100	* @section sec_pgm_misc Misc
101	*
102	* @subsection subsec_pgm_misc_diff Differences Between Legacy PAE and Long Mode PAE
103	*
104	* The differences between legacy PAE and long mode PAE are:
105	* -# PDPE bits 1, 2, 5 and 6 are defined differently. In leagcy mode they are
106	* all marked down as must-be-zero, while in long mode 1, 2 and 5 have the
107	* usual meanings while 6 is ignored (AMD). This means that upon switching to
108	* legacy PAE mode we'll have to clear these bits and when going to long mode
109	* they must be set. This applies to both intermediate and shadow contexts,
110	* however we don't need to do it for the intermediate one since we're
111	* executing with CR0.WP at that time.
112	* -# CR3 allows a 32-byte aligned address in legacy mode, while in long mode
113	* a page aligned one is required.
114	*
115	*
116	* @section sec_pgm_handlers Access Handlers
117	*
118	* Placeholder.
119	*
120	*
121	* @subsection sec_pgm_handlers_virt Virtual Access Handlers
122	*
123	* Placeholder.
124	*
125	*
126	* @subsection sec_pgm_handlers_virt Virtual Access Handlers
127	*
128	* We currently implement three types of virtual access handlers: ALL, WRITE
129	* and HYPERVISOR (WRITE). See PGMVIRTHANDLERTYPE for some more details.
130	*
131	* The HYPERVISOR access handlers is kept in a separate tree since it doesn't apply
132	* to physical pages (PGMTREES::HyperVirtHandlers) and only needs to be consulted in
133	* a special \#PF case. The ALL and WRITE are in the PGMTREES::VirtHandlers tree, the
134	* rest of this section is going to be about these handlers.
135	*
136	* We'll go thru the life cycle of a handler and try make sense of it all, don't know
137	* how successfull this is gonna be...
138	*
139	* 1. A handler is registered thru the PGMR3HandlerVirtualRegister and
140	* PGMHandlerVirtualRegisterEx APIs. We check for conflicting virtual handlers
141	* and create a new node that is inserted into the AVL tree (range key). Then
142	* a full PGM resync is flagged (clear pool, sync cr3, update virtual bit of PGMPAGE).
143	*
144	* 2. The following PGMSyncCR3/SyncCR3 operation will first make invoke HandlerVirtualUpdate.
145	*
146	* 2a. HandlerVirtualUpdate will will lookup all the pages covered by virtual handlers
147	* via the current guest CR3 and update the physical page -> virtual handler
148	* translation. Needless to say, this doesn't exactly scale very well. If any changes
149	* are detected, it will flag a virtual bit update just like we did on registration.
150	* PGMPHYS pages with changes will have their virtual handler state reset to NONE.
151	*
152	* 2b. The virtual bit update process will iterate all the pages covered by all the
153	* virtual handlers and update the PGMPAGE virtual handler state to the max of all
154	* virtual handlers on that page.
155	*
156	* 2c. Back in SyncCR3 we will now flush the entire shadow page cache to make sure
157	* we don't miss any alias mappings of the monitored pages.
158	*
159	* 2d. SyncCR3 will then proceed with syncing the CR3 table.
160	*
161	* 3. \#PF(np,read) on a page in the range. This will cause it to be synced
162	* read-only and resumed if it's a WRITE handler. If it's an ALL handler we
163	* will call the handlers like in the next step. If the physical mapping has
164	* changed we will - some time in the future - perform a handler callback
165	* (optional) and update the physical -> virtual handler cache.
166	*
167	* 4. \#PF(,write) on a page in the range. This will cause the handler to
168	* be invoked.
169	*
170	* 5. The guest invalidates the page and changes the physical backing or
171	* unmaps it. This should cause the invalidation callback to be invoked
172	* (it might not yet be 100% perfect). Exactly what happens next... is
173	* this where we mess up and end up out of sync for a while?
174	*
175	* 6. The handler is deregistered by the client via PGMHandlerVirtualDeregister.
176	* We will then set all PGMPAGEs in the physical -> virtual handler cache for
177	* this handler to NONE and trigger a full PGM resync (basically the same
178	* as int step 1). Which means 2 is executed again.
179	*
180	*
181	* @subsubsection sub_sec_pgm_handler_virt_todo TODOs
182	*
183	* There is a bunch of things that needs to be done to make the virtual handlers
184	* work 100% correctly and work more efficiently.
185	*
186	* The first bit hasn't been implemented yet because it's going to slow the
187	* whole mess down even more, and besides it seems to be working reliably for
188	* our current uses. OTOH, some of the optimizations might end up more or less
189	* implementing the missing bits, so we'll see.
190	*
191	* On the optimization side, the first thing to do is to try avoid unnecessary
192	* cache flushing. Then try team up with the shadowing code to track changes
193	* in mappings by means of access to them (shadow in), updates to shadows pages,
194	* invlpg, and shadow PT discarding (perhaps).
195	*
196	* Some idea that have popped up for optimization for current and new features:
197	* - bitmap indicating where there are virtual handlers installed.
198	* (4KB => 220 pages, page 212 => covers 32-bit address space 1:1!)
199	* - Further optimize this by min/max (needs min/max avl getters).
200	* - Shadow page table entry bit (if any left)?
201	*
202	*/
203
204
205	/** @page pg_pgm_phys PGM Physical Guest Memory Management
206	*
207	*
208	* Objectives:
209	* - Guest RAM over-commitment using memory ballooning,
210	* zero pages and general page sharing.
211	* - Moving or mirroring a VM onto a different physical machine.
212	*
213	*
214	* @subsection subsec_pgmPhys_Definitions Definitions
215	*
216	* Allocation chunk - A RTR0MemObjAllocPhysNC object and the tracking
217	* machinery assoicated with it.
218	*
219	*
220	*
221	*
222	* @subsection subsec_pgmPhys_AllocPage Allocating a page.
223	*
224	* Initially we map all guest memory to the (per VM) zero page, which
225	* means that none of the read functions will cause pages to be allocated.
226	*
227	* Exception, access bit in page tables that have been shared. This must
228	* be handled, but we must also make sure PGMGst*Modify doesn't make
229	* unnecessary modifications.
230	*
231	* Allocation points:
232	* - PGMPhysSimpleWriteGCPhys and PGMPhysWrite.
233	* - Replacing a zero page mapping at \#PF.
234	* - Replacing a shared page mapping at \#PF.
235	* - ROM registration (currently MMR3RomRegister).
236	* - VM restore (pgmR3Load).
237	*
238	* For the first three it would make sense to keep a few pages handy
239	* until we've reached the max memory commitment for the VM.
240	*
241	* For the ROM registration, we know exactly how many pages we need
242	* and will request these from ring-0. For restore, we will save
243	* the number of non-zero pages in the saved state and allocate
244	* them up front. This would allow the ring-0 component to refuse
245	* the request if the isn't sufficient memory available for VM use.
246	*
247	* Btw. for both ROM and restore allocations we won't be requiring
248	* zeroed pages as they are going to be filled instantly.
249	*
250	*
251	* @subsection subsec_pgmPhys_FreePage Freeing a page
252	*
253	* There are a few points where a page can be freed:
254	* - After being replaced by the zero page.
255	* - After being replaced by a shared page.
256	* - After being ballooned by the guest additions.
257	* - At reset.
258	* - At restore.
259	*
260	* When freeing one or more pages they will be returned to the ring-0
261	* component and replaced by the zero page.
262	*
263	* The reasoning for clearing out all the pages on reset is that it will
264	* return us to the exact same state as on power on, and may thereby help
265	* us reduce the memory load on the system. Further it might have a
266	* (temporary) positive influence on memory fragmentation (@see subsec_pgmPhys_Fragmentation).
267	*
268	* On restore, as mention under the allocation topic, pages should be
269	* freed / allocated depending on how many is actually required by the
270	* new VM state. The simplest approach is to do like on reset, and free
271	* all non-ROM pages and then allocate what we need.
272	*
273	* A measure to prevent some fragmentation, would be to let each allocation
274	* chunk have some affinity towards the VM having allocated the most pages
275	* from it. Also, try make sure to allocate from allocation chunks that
276	* are almost full. Admittedly, both these measures might work counter to
277	* our intentions and its probably not worth putting a lot of effort,
278	* cpu time or memory into this.
279	*
280	*
281	* @subsection subsec_pgmPhys_SharePage Sharing a page
282	*
283	* The basic idea is that there there will be a idle priority kernel
284	* thread walking the non-shared VM pages hashing them and looking for
285	* pages with the same checksum. If such pages are found, it will compare
286	* them byte-by-byte to see if they actually are identical. If found to be
287	* identical it will allocate a shared page, copy the content, check that
288	* the page didn't change while doing this, and finally request both the
289	* VMs to use the shared page instead. If the page is all zeros (special
290	* checksum and byte-by-byte check) it will request the VM that owns it
291	* to replace it with the zero page.
292	*
293	* To make this efficient, we will have to make sure not to try share a page
294	* that will change its contents soon. This part requires the most work.
295	* A simple idea would be to request the VM to write monitor the page for
296	* a while to make sure it isn't modified any time soon. Also, it may
297	* make sense to skip pages that are being write monitored since this
298	* information is readily available to the thread if it works on the
299	* per-VM guest memory structures (presently called PGMRAMRANGE).
300	*
301	*
302	* @subsection subsec_pgmPhys_Fragmentation Fragmentation Concerns and Counter Measures
303	*
304	* The pages are organized in allocation chunks in ring-0, this is a necessity
305	* if we wish to have an OS agnostic approach to this whole thing. (On Linux we
306	* could easily work on a page-by-page basis if we liked. Whether this is possible
307	* or efficient on NT I don't quite know.) Fragmentation within these chunks may
308	* become a problem as part of the idea here is that we wish to return memory to
309	* the host system.
310	*
311	* For instance, starting two VMs at the same time, they will both allocate the
312	* guest memory on-demand and if permitted their page allocations will be
313	* intermixed. Shut down one of the two VMs and it will be difficult to return
314	* any memory to the host system because the page allocation for the two VMs are
315	* mixed up in the same allocation chunks.
316	*
317	* To further complicate matters, when pages are freed because they have been
318	* ballooned or become shared/zero the whole idea is that the page is supposed
319	* to be reused by another VM or returned to the host system. This will cause
320	* allocation chunks to contain pages belonging to different VMs and prevent
321	* returning memory to the host when one of those VM shuts down.
322	*
323	* The only way to really deal with this problem is to move pages. This can
324	* either be done at VM shutdown and or by the idle priority worker thread
325	* that will be responsible for finding sharable/zero pages. The mechanisms
326	* involved for coercing a VM to move a page (or to do it for it) will be
327	* the same as when telling it to share/zero a page.
328	*
329	*
330	* @subsection subsec_pgmPhys_Tracking Tracking Structures And Their Cost
331	*
332	* There's a difficult balance between keeping the per-page tracking structures
333	* (global and guest page) easy to use and keeping them from eating too much
334	* memory. We have limited virtual memory resources available when operating in
335	* 32-bit kernel space (on 64-bit there'll it's quite a different story). The
336	* tracking structures will be attemted designed such that we can deal with up
337	* to 32GB of memory on a 32-bit system and essentially unlimited on 64-bit ones.
338	*
339	*
340	* @subsubsection subsubsec_pgmPhys_Tracking_Kernel Kernel Space
341	*
342	* @see pg_GMM
343	*
344	* @subsubsection subsubsec_pgmPhys_Tracking_PerVM Per-VM
345	*
346	* Fixed info is the physical address of the page (HCPhys) and the page id
347	* (described above). Theoretically we'll need 48(-12) bits for the HCPhys part.
348	* Today we've restricting ourselves to 40(-12) bits because this is the current
349	* restrictions of all AMD64 implementations (I think Barcelona will up this
350	* to 48(-12) bits, not that it really matters) and I needed the bits for
351	* tracking mappings of a page. 48-12 = 36. That leaves 28 bits, which means a
352	* decent range for the page id: 2^(28+12) = 1024TB.
353	*
354	* In additions to these, we'll have to keep maintaining the page flags as we
355	* currently do. Although it wouldn't harm to optimize these quite a bit, like
356	* for instance the ROM shouldn't depend on having a write handler installed
357	* in order for it to become read-only. A RO/RW bit should be considered so
358	* that the page syncing code doesn't have to mess about checking multiple
359	* flag combinations (ROM \|\| RW handler \|\| write monitored) in order to
360	* figure out how to setup a shadow PTE. But this of course, is second
361	* priority at present. Current this requires 12 bits, but could probably
362	* be optimized to ~8.
363	*
364	* Then there's the 24 bits used to track which shadow page tables are
365	* currently mapping a page for the purpose of speeding up physical
366	* access handlers, and thereby the page pool cache. More bit for this
367	* purpose wouldn't hurt IIRC.
368	*
369	* Then there is a new bit in which we need to record what kind of page
370	* this is, shared, zero, normal or write-monitored-normal. This'll
371	* require 2 bits. One bit might be needed for indicating whether a
372	* write monitored page has been written to. And yet another one or
373	* two for tracking migration status. 3-4 bits total then.
374	*
375	* Whatever is left will can be used to record the sharabilitiy of a
376	* page. The page checksum will not be stored in the per-VM table as
377	* the idle thread will not be permitted to do modifications to it.
378	* It will instead have to keep its own working set of potentially
379	* shareable pages and their check sums and stuff.
380	*
381	* For the present we'll keep the current packing of the
382	* PGMRAMRANGE::aHCPhys to keep the changes simple, only of course,
383	* we'll have to change it to a struct with a total of 128-bits at
384	* our disposal.
385	*
386	* The initial layout will be like this:
387	* @verbatim
388	RTHCPHYS HCPhys; The current stuff.
389	63:40 Current shadow PT tracking stuff.
390	39:12 The physical page frame number.
391	11:0 The current flags.
392	uint32_t u28PageId : 28; The page id.
393	uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
394	uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
395	uint32_t u1Reserved : 1; Reserved for later.
396	uint32_t u32Reserved; Reserved for later, mostly sharing stats.
397	@endverbatim
398	*
399	* The final layout will be something like this:
400	* @verbatim
401	RTHCPHYS HCPhys; The current stuff.
402	63:48 High page id (12+).
403	47:12 The physical page frame number.
404	11:0 Low page id.
405	uint32_t fReadOnly : 1; Whether it's readonly page (rom or monitored in some way).
406	uint32_t u3Type : 3; The page type {RESERVED, MMIO, MMIO2, ROM, shadowed ROM, RAM}.
407	uint32_t u2PhysMon : 2; Physical access handler type {none, read, write, all}.
408	uint32_t u2VirtMon : 2; Virtual access handler type {none, read, write, all}..
409	uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
410	uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
411	uint32_t u20Reserved : 20; Reserved for later, mostly sharing stats.
412	uint32_t u32Tracking; The shadow PT tracking stuff, roughly.
413	@endverbatim
414	*
415	* Cost wise, this means we'll double the cost for guest memory. There isn't anyway
416	* around that I'm afraid. It means that the cost of dealing out 32GB of memory
417	* to one or more VMs is: (32GB >> PAGE_SHIFT) * 16 bytes, or 128MBs. Or another
418	* example, the VM heap cost when assigning 1GB to a VM will be: 4MB.
419	*
420	* A couple of cost examples for the total cost per-VM + kernel.
421	* 32-bit Windows and 32-bit linux:
422	* 1GB guest ram, 256K pages: 4MB + 2MB(+) = 6MB
423	* 4GB guest ram, 1M pages: 16MB + 8MB(+) = 24MB
424	* 32GB guest ram, 8M pages: 128MB + 64MB(+) = 192MB
425	* 64-bit Windows and 64-bit linux:
426	* 1GB guest ram, 256K pages: 4MB + 3MB(+) = 7MB
427	* 4GB guest ram, 1M pages: 16MB + 12MB(+) = 28MB
428	* 32GB guest ram, 8M pages: 128MB + 96MB(+) = 224MB
429	*
430	* UPDATE - 2007-09-27:
431	* Will need a ballooned flag/state too because we cannot
432	* trust the guest 100% and reporting the same page as ballooned more
433	* than once will put the GMM off balance.
434	*
435	*
436	* @subsection subsec_pgmPhys_Serializing Serializing Access
437	*
438	* Initially, we'll try a simple scheme:
439	*
440	* - The per-VM RAM tracking structures (PGMRAMRANGE) is only modified
441	* by the EMT thread of that VM while in the pgm critsect.
442	* - Other threads in the VM process that needs to make reliable use of
443	* the per-VM RAM tracking structures will enter the critsect.
444	* - No process external thread or kernel thread will ever try enter
445	* the pgm critical section, as that just won't work.
446	* - The idle thread (and similar threads) doesn't not need 100% reliable
447	* data when performing it tasks as the EMT thread will be the one to
448	* do the actual changes later anyway. So, as long as it only accesses
449	* the main ram range, it can do so by somehow preventing the VM from
450	* being destroyed while it works on it...
451	*
452	* - The over-commitment management, including the allocating/freeing
453	* chunks, is serialized by a ring-0 mutex lock (a fast one since the
454	* more mundane mutex implementation is broken on Linux).
455	* - A separeate mutex is protecting the set of allocation chunks so
456	* that pages can be shared or/and freed up while some other VM is
457	* allocating more chunks. This mutex can be take from under the other
458	* one, but not the otherway around.
459	*
460	*
461	* @subsection subsec_pgmPhys_Request VM Request interface
462	*
463	* When in ring-0 it will become necessary to send requests to a VM so it can
464	* for instance move a page while defragmenting during VM destroy. The idle
465	* thread will make use of this interface to request VMs to setup shared
466	* pages and to perform write monitoring of pages.
467	*
468	* I would propose an interface similar to the current VMReq interface, similar
469	* in that it doesn't require locking and that the one sending the request may
470	* wait for completion if it wishes to. This shouldn't be very difficult to
471	* realize.
472	*
473	* The requests themselves are also pretty simple. They are basically:
474	* -# Check that some precondition is still true.
475	* -# Do the update.
476	* -# Update all shadow page tables involved with the page.
477	*
478	* The 3rd step is identical to what we're already doing when updating a
479	* physical handler, see pgmHandlerPhysicalSetRamFlagsAndFlushShadowPTs.
480	*
481	*
482	*
483	* @section sec_pgmPhys_MappingCaches Mapping Caches
484	*
485	* In order to be able to map in and out memory and to be able to support
486	* guest with more RAM than we've got virtual address space, we'll employing
487	* a mapping cache. There is already a tiny one for GC (see PGMGCDynMapGCPageEx)
488	* and we'll create a similar one for ring-0 unless we decide to setup a dedicate
489	* memory context for the HWACCM execution.
490	*
491	*
492	* @subsection subsec_pgmPhys_MappingCaches_R3 Ring-3
493	*
494	* We've considered implementing the ring-3 mapping cache page based but found
495	* that this was bother some when one had to take into account TLBs+SMP and
496	* portability (missing the necessary APIs on several platforms). There were
497	* also some performance concerns with this approach which hadn't quite been
498	* worked out.
499	*
500	* Instead, we'll be mapping allocation chunks into the VM process. This simplifies
501	* matters greatly quite a bit since we don't need to invent any new ring-0 stuff,
502	* only some minor RTR0MEMOBJ mapping stuff. The main concern here is that mapping
503	* compared to the previous idea is that mapping or unmapping a 1MB chunk is more
504	* costly than a single page, although how much more costly is uncertain. We'll
505	* try address this by using a very big cache, preferably bigger than the actual
506	* VM RAM size if possible. The current VM RAM sizes should give some idea for
507	* 32-bit boxes, while on 64-bit we can probably get away with employing an
508	* unlimited cache.
509	*
510	* The cache have to parts, as already indicated, the ring-3 side and the
511	* ring-0 side.
512	*
513	* The ring-0 will be tied to the page allocator since it will operate on the
514	* memory objects it contains. It will therefore require the first ring-0 mutex
515	* discussed in @ref subsec_pgmPhys_Serializing. We
516	* some double house keeping wrt to who has mapped what I think, since both
517	* VMMR0.r0 and RTR0MemObj will keep track of mapping relataions
518	*
519	* The ring-3 part will be protected by the pgm critsect. For simplicity, we'll
520	* require anyone that desires to do changes to the mapping cache to do that
521	* from within this critsect. Alternatively, we could employ a separate critsect
522	* for serializing changes to the mapping cache as this would reduce potential
523	* contention with other threads accessing mappings unrelated to the changes
524	* that are in process. We can see about this later, contention will show
525	* up in the statistics anyway, so it'll be simple to tell.
526	*
527	* The organization of the ring-3 part will be very much like how the allocation
528	* chunks are organized in ring-0, that is in an AVL tree by chunk id. To avoid
529	* having to walk the tree all the time, we'll have a couple of lookaside entries
530	* like in we do for I/O ports and MMIO in IOM.
531	*
532	* The simplified flow of a PGMPhysRead/Write function:
533	* -# Enter the PGM critsect.
534	* -# Lookup GCPhys in the ram ranges and get the Page ID.
535	* -# Calc the Allocation Chunk ID from the Page ID.
536	* -# Check the lookaside entries and then the AVL tree for the Chunk ID.
537	* If not found in cache:
538	* -# Call ring-0 and request it to be mapped and supply
539	* a chunk to be unmapped if the cache is maxed out already.
540	* -# Insert the new mapping into the AVL tree (id + R3 address).
541	* -# Update the relevant lookaside entry and return the mapping address.
542	* -# Do the read/write according to monitoring flags and everything.
543	* -# Leave the critsect.
544	*
545	*
546	* @section sec_pgmPhys_Fallback Fallback
547	*
548	* Current all the "second tier" hosts will not support the RTR0MemObjAllocPhysNC
549	* API and thus require a fallback.
550	*
551	* So, when RTR0MemObjAllocPhysNC returns VERR_NOT_SUPPORTED the page allocator
552	* will return to the ring-3 caller (and later ring-0) and asking it to seed
553	* the page allocator with some fresh pages (VERR_GMM_SEED_ME). Ring-3 will
554	* then perform an SUPPageAlloc(cbChunk >> PAGE_SHIFT) call and make a
555	* "SeededAllocPages" call to ring-0.
556	*
557	* The first time ring-0 sees the VERR_NOT_SUPPORTED failure it will disable
558	* all page sharing (zero page detection will continue). It will also force
559	* all allocations to come from the VM which seeded the page. Both these
560	* measures are taken to make sure that there will never be any need for
561	* mapping anything into ring-3 - everything will be mapped already.
562	*
563	* Whether we'll continue to use the current MM locked memory management
564	* for this I don't quite know (I'd prefer not to and just ditch that all
565	* togther), we'll see what's simplest to do.
566	*
567	*
568	*
569	* @section sec_pgmPhys_Changes Changes
570	*
571	* Breakdown of the changes involved?
572	*/
573
574	/*******************************************************************************
575	* Header Files *
576	*******************************************************************************/
577	#define LOG_GROUP LOG_GROUP_PGM
578	#include <VBox/dbgf.h>
579	#include <VBox/pgm.h>
580	#include <VBox/cpum.h>
581	#include <VBox/iom.h>
582	#include <VBox/sup.h>
583	#include <VBox/mm.h>
584	#include <VBox/em.h>
585	#include <VBox/stam.h>
586	#include <VBox/rem.h>
587	#include <VBox/dbgf.h>
588	#include <VBox/rem.h>
589	#include <VBox/selm.h>
590	#include <VBox/ssm.h>
591	#include "PGMInternal.h"
592	#include <VBox/vm.h>
593	#include <VBox/dbg.h>
594	#include <VBox/hwaccm.h>
595
596	#include <iprt/assert.h>
597	#include <iprt/alloc.h>
598	#include <iprt/asm.h>
599	#include <iprt/thread.h>
600	#include <iprt/string.h>
601	#ifdef DEBUG_bird
602	# include <iprt/env.h>
603	#endif
604	#include <VBox/param.h>
605	#include <VBox/err.h>
606
607
608	/*******************************************************************************
609	* Defined Constants And Macros *
610	*******************************************************************************/
611	/** Saved state data unit version for 2.5.x and later. */
612	#define PGM_SAVED_STATE_VERSION 9
613	/** Saved state data unit version for 2.2.2 and later. */
614	#define PGM_SAVED_STATE_VERSION_2_2_2 8
615	/** Saved state data unit version for 2.2.0. */
616	#define PGM_SAVED_STATE_VERSION_RR_DESC 7
617	/** Saved state data unit version. */
618	#define PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE 6
619
620
621	/*******************************************************************************
622	* Internal Functions *
623	*******************************************************************************/
624	static int pgmR3InitPaging(PVM pVM);
625	static void pgmR3InitStats(PVM pVM);
626	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
627	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
628	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
629	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser);
630	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
631	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
632	#ifdef VBOX_STRICT
633	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser);
634	#endif
635	static DECLCALLBACK(int) pgmR3Save(PVM pVM, PSSMHANDLE pSSM);
636	static DECLCALLBACK(int) pgmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version);
637	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0);
638	static void pgmR3ModeDataSwitch(PVM pVM, PVMCPU pVCpu, PGMMODE enmShw, PGMMODE enmGst);
639	static PGMMODE pgmR3CalcShadowMode(PVM pVM, PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher);
640
641	#ifdef VBOX_WITH_DEBUGGER
642	/** @todo Convert the first two commands to 'info' items. */
643	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
644	static DECLCALLBACK(int) pgmR3CmdMap(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
645	static DECLCALLBACK(int) pgmR3CmdError(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
646	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
647	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
648	# ifdef VBOX_STRICT
649	static DECLCALLBACK(int) pgmR3CmdAssertCR3(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
650	# endif
651	#endif
652
653
654	/*******************************************************************************
655	* Global Variables *
656	*******************************************************************************/
657	#ifdef VBOX_WITH_DEBUGGER
658	/** Argument descriptors for '.pgmerror' and '.pgmerroroff'. */
659	static const DBGCVARDESC g_aPgmErrorArgs[] =
660	{
661	/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
662	{ 0, 1, DBGCVAR_CAT_STRING, 0, "where", "Error injection location." },
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	{ "pgmmap", 0, 0, NULL, 0, NULL, 0, pgmR3CmdMap, "", "Display the mapping ranges." },
671	{ "pgmsync", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSync, "", "Sync the CR3 page." },
672	{ "pgmerror", 0, 1, &g_aPgmErrorArgs[0],1, NULL, 0, pgmR3CmdError, "", "Enables inject runtime of errors into parts of PGM." },
673	{ "pgmerroroff", 0, 1, &g_aPgmErrorArgs[0],1, NULL, 0, pgmR3CmdError, "", "Disables inject runtime errors into parts of PGM." },
674	#ifdef VBOX_STRICT
675	{ "pgmassertcr3", 0, 0, NULL, 0, NULL, 0, pgmR3CmdAssertCR3, "", "Check the shadow CR3 mapping." },
676	#endif
677	{ "pgmsyncalways", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSyncAlways, "", "Toggle permanent CR3 syncing." },
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
1185	/*
1186	* Init the structure.
1187	*/
1188	pVM->pgm.s.offVM = RT_OFFSETOF(VM, pgm.s);
1189	pVM->pgm.s.offVCpuPGM = RT_OFFSETOF(VMCPU, pgm.s);
1190
1191	/* Init the per-CPU part. */
1192	for (unsigned i=0;i<pVM->cCPUs;i++)
1193	{
1194	PVMCPU pVCpu = &pVM->aCpus[i];
1195	PPGMCPU pPGM = &pVCpu->pgm.s;
1196
1197	pPGM->offVM = (uintptr_t)&pVCpu->pgm.s - (uintptr_t)pVM;
1198	pPGM->offVCpu = RT_OFFSETOF(VMCPU, pgm.s);
1199	pPGM->offPGM = (uintptr_t)&pVCpu->pgm.s - (uintptr_t)&pVM->pgm.s;
1200
1201	pPGM->enmShadowMode = PGMMODE_INVALID;
1202	pPGM->enmGuestMode = PGMMODE_INVALID;
1203
1204	pPGM->GCPhysCR3 = NIL_RTGCPHYS;
1205
1206	pPGM->pGstPaePdptR3 = NULL;
1207	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
1208	pPGM->pGstPaePdptR0 = NIL_RTR0PTR;
1209	#endif
1210	pPGM->pGstPaePdptRC = NIL_RTRCPTR;
1211	for (unsigned i = 0; i < RT_ELEMENTS(pVCpu->pgm.s.apGstPaePDsR3); i++)
1212	{
1213	pPGM->apGstPaePDsR3[i] = NULL;
1214	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
1215	pPGM->apGstPaePDsR0[i] = NIL_RTR0PTR;
1216	#endif
1217	pPGM->apGstPaePDsRC[i] = NIL_RTRCPTR;
1218	pPGM->aGCPhysGstPaePDs[i] = NIL_RTGCPHYS;
1219	pPGM->aGCPhysGstPaePDsMonitored[i] = NIL_RTGCPHYS;
1220	}
1221
1222	pPGM->fA20Enabled = true;
1223	}
1224
1225	pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
1226	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(32) - 1; /* default; checked later */
1227	pVM->pgm.s.GCPtrPrevRamRangeMapping = MM_HYPER_AREA_ADDRESS;
1228
1229	rc = CFGMR3QueryBoolDef(CFGMR3GetRoot(pVM), "RamPreAlloc", &pVM->pgm.s.fRamPreAlloc,
1230	#ifdef VBOX_WITH_PREALLOC_RAM_BY_DEFAULT
1231	true
1232	#else
1233	false
1234	#endif
1235	);
1236	AssertLogRelRCReturn(rc, rc);
1237
1238	#if HC_ARCH_BITS == 64 \|\| 1 /** @todo 4GB/32-bit: remove \|\| 1 later and adjust the limit. */
1239	rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, UINT32_MAX);
1240	#else
1241	rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, _1G / GMM_CHUNK_SIZE);
1242	#endif
1243	AssertLogRelRCReturn(rc, rc);
1244	for (uint32_t i = 0; i < RT_ELEMENTS(pVM->pgm.s.ChunkR3Map.Tlb.aEntries); i++)
1245	pVM->pgm.s.ChunkR3Map.Tlb.aEntries[i].idChunk = NIL_GMM_CHUNKID;
1246
1247	/*
1248	* Get the configured RAM size - to estimate saved state size.
1249	*/
1250	uint64_t cbRam;
1251	rc = CFGMR3QueryU64(CFGMR3GetRoot(pVM), "RamSize", &cbRam);
1252	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1253	cbRam = 0;
1254	else if (RT_SUCCESS(rc))
1255	{
1256	if (cbRam < PAGE_SIZE)
1257	cbRam = 0;
1258	cbRam = RT_ALIGN_64(cbRam, PAGE_SIZE);
1259	}
1260	else
1261	{
1262	AssertMsgFailed(("Configuration error: Failed to query integer \"RamSize\", rc=%Rrc.\n", rc));
1263	return rc;
1264	}
1265
1266	/*
1267	* Register callbacks, string formatters and the saved state data unit.
1268	*/
1269	#ifdef VBOX_STRICT
1270	VMR3AtStateRegister(pVM, pgmR3ResetNoMorePhysWritesFlag, NULL);
1271	#endif
1272	PGMRegisterStringFormatTypes();
1273
1274	rc = SSMR3RegisterInternal(pVM, "pgm", 1, PGM_SAVED_STATE_VERSION, (size_t)cbRam + sizeof(PGM),
1275	NULL, pgmR3Save, NULL,
1276	NULL, pgmR3Load, NULL);
1277	if (RT_FAILURE(rc))
1278	return rc;
1279
1280	/*
1281	* Initialize the PGM critical section and flush the phys TLBs
1282	*/
1283	rc = PDMR3CritSectInit(pVM, &pVM->pgm.s.CritSect, "PGM");
1284	AssertRCReturn(rc, rc);
1285
1286	PGMR3PhysChunkInvalidateTLB(pVM);
1287	PGMPhysInvalidatePageR3MapTLB(pVM);
1288	PGMPhysInvalidatePageR0MapTLB(pVM);
1289	PGMPhysInvalidatePageGCMapTLB(pVM);
1290
1291	/*
1292	* For the time being we sport a full set of handy pages in addition to the base
1293	* memory to simplify things.
1294	*/
1295	rc = MMR3ReserveHandyPages(pVM, RT_ELEMENTS(pVM->pgm.s.aHandyPages)); /** @todo this should be changed to PGM_HANDY_PAGES_MIN but this needs proper testing... */
1296	AssertRCReturn(rc, rc);
1297
1298	/*
1299	* Trees
1300	*/
1301	rc = MMHyperAlloc(pVM, sizeof(PGMTREES), 0, MM_TAG_PGM, (void **)&pVM->pgm.s.pTreesR3);
1302	if (RT_SUCCESS(rc))
1303	{
1304	pVM->pgm.s.pTreesR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pTreesR3);
1305	pVM->pgm.s.pTreesRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pTreesR3);
1306
1307	/*
1308	* Alocate the zero page.
1309	*/
1310	rc = MMHyperAlloc(pVM, PAGE_SIZE, PAGE_SIZE, MM_TAG_PGM, &pVM->pgm.s.pvZeroPgR3);
1311	}
1312	if (RT_SUCCESS(rc))
1313	{
1314	pVM->pgm.s.pvZeroPgRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pvZeroPgR3);
1315	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
1316	pVM->pgm.s.HCPhysZeroPg = MMR3HyperHCVirt2HCPhys(pVM, pVM->pgm.s.pvZeroPgR3);
1317	AssertRelease(pVM->pgm.s.HCPhysZeroPg != NIL_RTHCPHYS);
1318
1319	/*
1320	* Init the paging.
1321	*/
1322	rc = pgmR3InitPaging(pVM);
1323	}
1324	if (RT_SUCCESS(rc))
1325	{
1326	/*
1327	* Init the page pool.
1328	*/
1329	rc = pgmR3PoolInit(pVM);
1330	}
1331	if (RT_SUCCESS(rc))
1332	{
1333	for (unsigned i=0;i<pVM->cCPUs;i++)
1334	{
1335	PVMCPU pVCpu = &pVM->aCpus[i];
1336
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 rc = DBGCRegisterCommands(&g_aCmds[0], RT_ELEMENTS(g_aCmds));
1377	if (RT_SUCCESS(rc))
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 (unsigned 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);
1451	pVM->pgm.s.apInterPTs[0] = (PX86PT)MMR3PageAllocLow(pVM);
1452	pVM->pgm.s.apInterPTs[1] = (PX86PT)MMR3PageAllocLow(pVM);
1453	pVM->pgm.s.apInterPaePTs[0] = (PX86PTPAE)MMR3PageAlloc(pVM);
1454	pVM->pgm.s.apInterPaePTs[1] = (PX86PTPAE)MMR3PageAlloc(pVM);
1455	pVM->pgm.s.apInterPaePDs[0] = (PX86PDPAE)MMR3PageAlloc(pVM);
1456	pVM->pgm.s.apInterPaePDs[1] = (PX86PDPAE)MMR3PageAlloc(pVM);
1457	pVM->pgm.s.apInterPaePDs[2] = (PX86PDPAE)MMR3PageAlloc(pVM);
1458	pVM->pgm.s.apInterPaePDs[3] = (PX86PDPAE)MMR3PageAlloc(pVM);
1459	pVM->pgm.s.pInterPaePDPT = (PX86PDPT)MMR3PageAllocLow(pVM);
1460	pVM->pgm.s.pInterPaePDPT64 = (PX86PDPT)MMR3PageAllocLow(pVM);
1461	pVM->pgm.s.pInterPaePML4 = (PX86PML4)MMR3PageAllocLow(pVM);
1462	if ( !pVM->pgm.s.pInterPD
1463	\|\| !pVM->pgm.s.apInterPTs[0]
1464	\|\| !pVM->pgm.s.apInterPTs[1]
1465	\|\| !pVM->pgm.s.apInterPaePTs[0]
1466	\|\| !pVM->pgm.s.apInterPaePTs[1]
1467	\|\| !pVM->pgm.s.apInterPaePDs[0]
1468	\|\| !pVM->pgm.s.apInterPaePDs[1]
1469	\|\| !pVM->pgm.s.apInterPaePDs[2]
1470	\|\| !pVM->pgm.s.apInterPaePDs[3]
1471	\|\| !pVM->pgm.s.pInterPaePDPT
1472	\|\| !pVM->pgm.s.pInterPaePDPT64
1473	\|\| !pVM->pgm.s.pInterPaePML4)
1474	{
1475	AssertMsgFailed(("Failed to allocate pages for the intermediate context!\n"));
1476	return VERR_NO_PAGE_MEMORY;
1477	}
1478
1479	pVM->pgm.s.HCPhysInterPD = MMPage2Phys(pVM, pVM->pgm.s.pInterPD);
1480	AssertRelease(pVM->pgm.s.HCPhysInterPD != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPD & PAGE_OFFSET_MASK));
1481	pVM->pgm.s.HCPhysInterPaePDPT = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT);
1482	AssertRelease(pVM->pgm.s.HCPhysInterPaePDPT != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePDPT & PAGE_OFFSET_MASK));
1483	pVM->pgm.s.HCPhysInterPaePML4 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePML4);
1484	AssertRelease(pVM->pgm.s.HCPhysInterPaePML4 != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePML4 & PAGE_OFFSET_MASK) && pVM->pgm.s.HCPhysInterPaePML4 < 0xffffffff);
1485
1486	/*
1487	* Initialize the pages, setting up the PML4 and PDPT for repetitive 4GB action.
1488	*/
1489	ASMMemZeroPage(pVM->pgm.s.pInterPD);
1490	ASMMemZeroPage(pVM->pgm.s.apInterPTs[0]);
1491	ASMMemZeroPage(pVM->pgm.s.apInterPTs[1]);
1492
1493	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[0]);
1494	ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[1]);
1495
1496	ASMMemZeroPage(pVM->pgm.s.pInterPaePDPT);
1497	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.apInterPaePDs); i++)
1498	{
1499	ASMMemZeroPage(pVM->pgm.s.apInterPaePDs[i]);
1500	pVM->pgm.s.pInterPaePDPT->a[i].u = X86_PDPE_P \| PGM_PLXFLAGS_PERMANENT
1501	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[i]);
1502	}
1503
1504	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.pInterPaePDPT64->a); i++)
1505	{
1506	const unsigned iPD = i % RT_ELEMENTS(pVM->pgm.s.apInterPaePDs);
1507	pVM->pgm.s.pInterPaePDPT64->a[i].u = X86_PDPE_P \| X86_PDPE_RW \| X86_PDPE_US \| X86_PDPE_A \| PGM_PLXFLAGS_PERMANENT
1508	\| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[iPD]);
1509	}
1510
1511	RTHCPHYS HCPhysInterPaePDPT64 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64);
1512	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.pInterPaePML4->a); i++)
1513	pVM->pgm.s.pInterPaePML4->a[i].u = X86_PML4E_P \| X86_PML4E_RW \| X86_PML4E_US \| X86_PML4E_A \| PGM_PLXFLAGS_PERMANENT
1514	\| HCPhysInterPaePDPT64;
1515
1516	/*
1517	* Initialize paging workers and mode from current host mode
1518	* and the guest running in real mode.
1519	*/
1520	pVM->pgm.s.enmHostMode = SUPGetPagingMode();
1521	switch (pVM->pgm.s.enmHostMode)
1522	{
1523	case SUPPAGINGMODE_32_BIT:
1524	case SUPPAGINGMODE_32_BIT_GLOBAL:
1525	case SUPPAGINGMODE_PAE:
1526	case SUPPAGINGMODE_PAE_GLOBAL:
1527	case SUPPAGINGMODE_PAE_NX:
1528	case SUPPAGINGMODE_PAE_GLOBAL_NX:
1529	break;
1530
1531	case SUPPAGINGMODE_AMD64:
1532	case SUPPAGINGMODE_AMD64_GLOBAL:
1533	case SUPPAGINGMODE_AMD64_NX:
1534	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
1535	#ifndef VBOX_WITH_HYBRID_32BIT_KERNEL
1536	if (ARCH_BITS != 64)
1537	{
1538	AssertMsgFailed(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1539	LogRel(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
1540	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1541	}
1542	#endif
1543	break;
1544	default:
1545	AssertMsgFailed(("Host mode %d is not supported\n", pVM->pgm.s.enmHostMode));
1546	return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
1547	}
1548	rc = pgmR3ModeDataInit(pVM, false /* don't resolve GC and R0 syms yet */);
1549	if (RT_SUCCESS(rc))
1550	{
1551	LogFlow(("pgmR3InitPaging: returns successfully\n"));
1552	#if HC_ARCH_BITS == 64
1553	LogRel(("Debug: HCPhysInterPD=%RHp HCPhysInterPaePDPT=%RHp HCPhysInterPaePML4=%RHp\n",
1554	pVM->pgm.s.HCPhysInterPD, pVM->pgm.s.HCPhysInterPaePDPT, pVM->pgm.s.HCPhysInterPaePML4));
1555	LogRel(("Debug: apInterPTs={%RHp,%RHp} apInterPaePTs={%RHp,%RHp} apInterPaePDs={%RHp,%RHp,%RHp,%RHp} pInterPaePDPT64=%RHp\n",
1556	MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[1]),
1557	MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[1]),
1558	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]),
1559	MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64)));
1560	#endif
1561
1562	return VINF_SUCCESS;
1563	}
1564
1565	LogFlow(("pgmR3InitPaging: returns %Rrc\n", rc));
1566	return rc;
1567	}
1568
1569
1570	/**
1571	* Init statistics
1572	*/
1573	static void pgmR3InitStats(PVM pVM)
1574	{
1575	PPGM pPGM = &pVM->pgm.s;
1576	int rc;
1577
1578	/* Common - misc variables */
1579	STAM_REL_REG(pVM, &pPGM->cAllPages, STAMTYPE_U32, "/PGM/Page/cAllPages", STAMUNIT_OCCURENCES, "The total number of pages.");
1580	STAM_REL_REG(pVM, &pPGM->cPrivatePages, STAMTYPE_U32, "/PGM/Page/cPrivatePages", STAMUNIT_OCCURENCES, "The number of private pages.");
1581	STAM_REL_REG(pVM, &pPGM->cSharedPages, STAMTYPE_U32, "/PGM/Page/cSharedPages", STAMUNIT_OCCURENCES, "The number of shared pages.");
1582	STAM_REL_REG(pVM, &pPGM->cZeroPages, STAMTYPE_U32, "/PGM/Page/cZeroPages", STAMUNIT_OCCURENCES, "The number of zero backed pages.");
1583	STAM_REL_REG(pVM, &pPGM->cHandyPages, STAMTYPE_U32, "/PGM/Page/cHandyPages", STAMUNIT_OCCURENCES, "The number of handy pages (not included in cAllPages).");
1584	STAM_REL_REG(pVM, &pPGM->cRelocations, STAMTYPE_COUNTER, "/PGM/cRelocations", STAMUNIT_OCCURENCES, "Number of hypervisor relocations.");
1585	STAM_REL_REG(pVM, &pPGM->ChunkR3Map.c, STAMTYPE_U32, "/PGM/ChunkR3Map/c", STAMUNIT_OCCURENCES, "Number of mapped chunks.");
1586	STAM_REL_REG(pVM, &pPGM->ChunkR3Map.cMax, STAMTYPE_U32, "/PGM/ChunkR3Map/cMax", STAMUNIT_OCCURENCES, "Maximum number of mapped chunks.");
1587
1588	#ifdef VBOX_WITH_STATISTICS
1589
1590	# define PGM_REG_COUNTER(a, b, c) \
1591	rc = STAMR3RegisterF(pVM, a, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, c, b); \
1592	AssertRC(rc);
1593
1594	# define PGM_REG_PROFILE(a, b, c) \
1595	rc = STAMR3RegisterF(pVM, a, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, c, b); \
1596	AssertRC(rc);
1597
1598	PGM_REG_COUNTER(&pPGM->StatR3DetectedConflicts, "/PGM/R3/DetectedConflicts", "The number of times PGMR3CheckMappingConflicts() detected a conflict.");
1599	PGM_REG_PROFILE(&pPGM->StatR3ResolveConflict, "/PGM/R3/ResolveConflict", "pgmR3SyncPTResolveConflict() profiling (includes the entire relocation).");
1600
1601	PGM_REG_COUNTER(&pPGM->StatRZChunkR3MapTlbHits, "/PGM/ChunkR3Map/TlbHitsRZ", "TLB hits.");
1602	PGM_REG_COUNTER(&pPGM->StatRZChunkR3MapTlbMisses, "/PGM/ChunkR3Map/TlbMissesRZ", "TLB misses.");
1603	PGM_REG_COUNTER(&pPGM->StatRZPageMapTlbHits, "/PGM/RZ/Page/MapTlbHits", "TLB hits.");
1604	PGM_REG_COUNTER(&pPGM->StatRZPageMapTlbMisses, "/PGM/RZ/Page/MapTlbMisses", "TLB misses.");
1605	PGM_REG_COUNTER(&pPGM->StatR3ChunkR3MapTlbHits, "/PGM/ChunkR3Map/TlbHitsR3", "TLB hits.");
1606	PGM_REG_COUNTER(&pPGM->StatR3ChunkR3MapTlbMisses, "/PGM/ChunkR3Map/TlbMissesR3", "TLB misses.");
1607	PGM_REG_COUNTER(&pPGM->StatR3PageMapTlbHits, "/PGM/R3/Page/MapTlbHits", "TLB hits.");
1608	PGM_REG_COUNTER(&pPGM->StatR3PageMapTlbMisses, "/PGM/R3/Page/MapTlbMisses", "TLB misses.");
1609
1610	PGM_REG_PROFILE(&pPGM->StatRZSyncCR3HandlerVirtualUpdate, "/PGM/RZ/SyncCR3/Handlers/VirtualUpdate", "Profiling of the virtual handler updates.");
1611	PGM_REG_PROFILE(&pPGM->StatRZSyncCR3HandlerVirtualReset, "/PGM/RZ/SyncCR3/Handlers/VirtualReset", "Profiling of the virtual handler resets.");
1612	PGM_REG_PROFILE(&pPGM->StatR3SyncCR3HandlerVirtualUpdate, "/PGM/R3/SyncCR3/Handlers/VirtualUpdate", "Profiling of the virtual handler updates.");
1613	PGM_REG_PROFILE(&pPGM->StatR3SyncCR3HandlerVirtualReset, "/PGM/R3/SyncCR3/Handlers/VirtualReset", "Profiling of the virtual handler resets.");
1614
1615	PGM_REG_COUNTER(&pPGM->StatRZPhysHandlerReset, "/PGM/RZ/PhysHandlerReset", "The number of times PGMHandlerPhysicalReset is called.");
1616	PGM_REG_COUNTER(&pPGM->StatR3PhysHandlerReset, "/PGM/R3/PhysHandlerReset", "The number of times PGMHandlerPhysicalReset is called.");
1617	PGM_REG_PROFILE(&pPGM->StatRZVirtHandlerSearchByPhys, "/PGM/RZ/VirtHandlerSearchByPhys", "Profiling of pgmHandlerVirtualFindByPhysAddr.");
1618	PGM_REG_PROFILE(&pPGM->StatR3VirtHandlerSearchByPhys, "/PGM/R3/VirtHandlerSearchByPhys", "Profiling of pgmHandlerVirtualFindByPhysAddr.");
1619
1620	PGM_REG_COUNTER(&pPGM->StatRZPageReplaceShared, "/PGM/RZ/Page/ReplacedShared", "Times a shared page was replaced.");
1621	PGM_REG_COUNTER(&pPGM->StatRZPageReplaceZero, "/PGM/RZ/Page/ReplacedZero", "Times the zero page was replaced.");
1622	/// @todo PGM_REG_COUNTER(&pPGM->StatRZPageHandyAllocs, "/PGM/RZ/Page/HandyAllocs", "Number of times we've allocated more handy pages.");
1623	PGM_REG_COUNTER(&pPGM->StatR3PageReplaceShared, "/PGM/R3/Page/ReplacedShared", "Times a shared page was replaced.");
1624	PGM_REG_COUNTER(&pPGM->StatR3PageReplaceZero, "/PGM/R3/Page/ReplacedZero", "Times the zero page was replaced.");
1625	/// @todo PGM_REG_COUNTER(&pPGM->StatR3PageHandyAllocs, "/PGM/R3/Page/HandyAllocs", "Number of times we've allocated more handy pages.");
1626
1627	/* GC only: */
1628	PGM_REG_COUNTER(&pPGM->StatRCDynMapCacheHits, "/PGM/RC/DynMapCache/Hits" , "Number of dynamic page mapping cache hits.");
1629	PGM_REG_COUNTER(&pPGM->StatRCDynMapCacheMisses, "/PGM/RC/DynMapCache/Misses" , "Number of dynamic page mapping cache misses.");
1630	PGM_REG_COUNTER(&pPGM->StatRCInvlPgConflict, "/PGM/RC/InvlPgConflict", "Number of times PGMInvalidatePage() detected a mapping conflict.");
1631	PGM_REG_COUNTER(&pPGM->StatRCInvlPgSyncMonCR3, "/PGM/RC/InvlPgSyncMonitorCR3", "Number of times PGMInvalidatePage() ran into PGM_SYNC_MONITOR_CR3.");
1632
1633	# ifdef PGMPOOL_WITH_GCPHYS_TRACKING
1634	PGM_REG_COUNTER(&pPGM->StatTrackVirgin, "/PGM/Track/Virgin", "The number of first time shadowings");
1635	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.");
1636	PGM_REG_COUNTER(&pPGM->StatTrackAliasedMany, "/PGM/Track/AliasedMany", "The number of times we're tracking using cRef2.");
1637	PGM_REG_COUNTER(&pPGM->StatTrackAliasedLots, "/PGM/Track/AliasedLots", "The number of times we're hitting pages which has overflowed cRef2");
1638	PGM_REG_COUNTER(&pPGM->StatTrackOverflows, "/PGM/Track/Overflows", "The number of times the extent list grows too long.");
1639	PGM_REG_PROFILE(&pPGM->StatTrackDeref, "/PGM/Track/Deref", "Profiling of SyncPageWorkerTrackDeref (expensive).");
1640	# endif
1641
1642	# undef PGM_REG_COUNTER
1643	# undef PGM_REG_PROFILE
1644	#endif
1645
1646	/*
1647	* Note! The layout below matches the member layout exactly!
1648	*/
1649
1650	/*
1651	* Common - stats
1652	*/
1653	for (unsigned i=0;i<pVM->cCPUs;i++)
1654	{
1655	PVMCPU pVCpu = &pVM->aCpus[i];
1656	PPGMCPU pPGM = &pVCpu->pgm.s;
1657
1658	#define PGM_REG_COUNTER(a, b, c) \
1659	rc = STAMR3RegisterF(pVM, a, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, c, b, i); \
1660	AssertRC(rc);
1661	#define PGM_REG_PROFILE(a, b, c) \
1662	rc = STAMR3RegisterF(pVM, a, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, c, b, i); \
1663	AssertRC(rc);
1664
1665	PGM_REG_COUNTER(&pPGM->cGuestModeChanges, "/PGM/CPU%d/cGuestModeChanges", "Number of guest mode changes.");
1666
1667	#ifdef VBOX_WITH_STATISTICS
1668	for (unsigned j = 0; j < RT_ELEMENTS(pPGM->StatSyncPtPD); j++)
1669	STAMR3RegisterF(pVM, &pPGM->StatSyncPtPD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1670	"The number of SyncPT per PD n.", "/PGM/CPU%d/PDSyncPT/%04X", i, j);
1671	for (unsigned j = 0; j < RT_ELEMENTS(pPGM->StatSyncPagePD); j++)
1672	STAMR3RegisterF(pVM, &pPGM->StatSyncPagePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1673	"The number of SyncPage per PD n.", "/PGM/CPU%d/PDSyncPage/%04X", i, j);
1674
1675	/* R0 only: */
1676	PGM_REG_COUNTER(&pPGM->StatR0DynMapMigrateInvlPg, "/PGM/CPU%d/R0/DynMapMigrateInvlPg", "invlpg count in PGMDynMapMigrateAutoSet.");
1677	PGM_REG_PROFILE(&pPGM->StatR0DynMapGCPageInl, "/PGM/CPU%d/R0/DynMapPageGCPageInl", "Calls to pgmR0DynMapGCPageInlined.");
1678	PGM_REG_COUNTER(&pPGM->StatR0DynMapGCPageInlHits, "/PGM/CPU%d/R0/DynMapPageGCPageInl/Hits", "Hash table lookup hits.");
1679	PGM_REG_COUNTER(&pPGM->StatR0DynMapGCPageInlMisses, "/PGM/CPU%d/R0/DynMapPageGCPageInl/Misses", "Misses that falls back to code common with PGMDynMapHCPage.");
1680	PGM_REG_COUNTER(&pPGM->StatR0DynMapGCPageInlRamHits, "/PGM/CPU%d/R0/DynMapPageGCPageInl/RamHits", "1st ram range hits.");
1681	PGM_REG_COUNTER(&pPGM->StatR0DynMapGCPageInlRamMisses, "/PGM/CPU%d/R0/DynMapPageGCPageInl/RamMisses", "1st ram range misses, takes slow path.");
1682	PGM_REG_PROFILE(&pPGM->StatR0DynMapHCPageInl, "/PGM/CPU%d/R0/DynMapPageHCPageInl", "Calls to pgmR0DynMapHCPageInlined.");
1683	PGM_REG_COUNTER(&pPGM->StatR0DynMapHCPageInlHits, "/PGM/CPU%d/R0/DynMapPageHCPageInl/Hits", "Hash table lookup hits.");
1684	PGM_REG_COUNTER(&pPGM->StatR0DynMapHCPageInlMisses, "/PGM/CPU%d/R0/DynMapPageHCPageInl/Misses", "Misses that falls back to code common with PGMDynMapHCPage.");
1685	PGM_REG_COUNTER(&pPGM->StatR0DynMapPage, "/PGM/CPU%d/R0/DynMapPage", "Calls to pgmR0DynMapPage");
1686	PGM_REG_COUNTER(&pPGM->StatR0DynMapSetOptimize, "/PGM/CPU%d/R0/DynMapPage/SetOptimize", "Calls to pgmDynMapOptimizeAutoSet.");
1687	PGM_REG_COUNTER(&pPGM->StatR0DynMapSetSearchFlushes, "/PGM/CPU%d/R0/DynMapPage/SetSearchFlushes","Set search restorting to subset flushes.");
1688	PGM_REG_COUNTER(&pPGM->StatR0DynMapSetSearchHits, "/PGM/CPU%d/R0/DynMapPage/SetSearchHits", "Set search hits.");
1689	PGM_REG_COUNTER(&pPGM->StatR0DynMapSetSearchMisses, "/PGM/CPU%d/R0/DynMapPage/SetSearchMisses", "Set search misses.");
1690	PGM_REG_PROFILE(&pPGM->StatR0DynMapHCPage, "/PGM/CPU%d/R0/DynMapPage/HCPage", "Calls to PGMDynMapHCPage (ring-0).");
1691	PGM_REG_COUNTER(&pPGM->StatR0DynMapPageHits0, "/PGM/CPU%d/R0/DynMapPage/Hits0", "Hits at iPage+0");
1692	PGM_REG_COUNTER(&pPGM->StatR0DynMapPageHits1, "/PGM/CPU%d/R0/DynMapPage/Hits1", "Hits at iPage+1");
1693	PGM_REG_COUNTER(&pPGM->StatR0DynMapPageHits2, "/PGM/CPU%d/R0/DynMapPage/Hits2", "Hits at iPage+2");
1694	PGM_REG_COUNTER(&pPGM->StatR0DynMapPageInvlPg, "/PGM/CPU%d/R0/DynMapPage/InvlPg", "invlpg count in pgmR0DynMapPageSlow.");
1695	PGM_REG_COUNTER(&pPGM->StatR0DynMapPageSlow, "/PGM/CPU%d/R0/DynMapPage/Slow", "Calls to pgmR0DynMapPageSlow - subtract this from pgmR0DynMapPage to get 1st level hits.");
1696	PGM_REG_COUNTER(&pPGM->StatR0DynMapPageSlowLoopHits, "/PGM/CPU%d/R0/DynMapPage/SlowLoopHits" , "Hits in the loop path.");
1697	PGM_REG_COUNTER(&pPGM->StatR0DynMapPageSlowLoopMisses, "/PGM/CPU%d/R0/DynMapPage/SlowLoopMisses", "Misses in the loop path. NonLoopMisses = Slow - SlowLoopHit - SlowLoopMisses");
1698	//PGM_REG_COUNTER(&pPGM->StatR0DynMapPageSlowLostHits, "/PGM/CPU%d/R0/DynMapPage/SlowLostHits", "Lost hits.");
1699	PGM_REG_COUNTER(&pPGM->StatR0DynMapSubsets, "/PGM/CPU%d/R0/Subsets", "Times PGMDynMapPushAutoSubset was called.");
1700	PGM_REG_COUNTER(&pPGM->StatR0DynMapPopFlushes, "/PGM/CPU%d/R0/SubsetPopFlushes", "Times PGMDynMapPopAutoSubset flushes the subset.");
1701	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[0], "/PGM/CPU%d/R0/SetSize000..09", "00-09% filled");
1702	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[1], "/PGM/CPU%d/R0/SetSize010..19", "10-19% filled");
1703	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[2], "/PGM/CPU%d/R0/SetSize020..29", "20-29% filled");
1704	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[3], "/PGM/CPU%d/R0/SetSize030..39", "30-39% filled");
1705	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[4], "/PGM/CPU%d/R0/SetSize040..49", "40-49% filled");
1706	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[5], "/PGM/CPU%d/R0/SetSize050..59", "50-59% filled");
1707	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[6], "/PGM/CPU%d/R0/SetSize060..69", "60-69% filled");
1708	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[7], "/PGM/CPU%d/R0/SetSize070..79", "70-79% filled");
1709	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[8], "/PGM/CPU%d/R0/SetSize080..89", "80-89% filled");
1710	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[9], "/PGM/CPU%d/R0/SetSize090..99", "90-99% filled");
1711	PGM_REG_COUNTER(&pPGM->aStatR0DynMapSetSize[10], "/PGM/CPU%d/R0/SetSize100", "100% filled");
1712
1713	/* RZ only: */
1714	PGM_REG_PROFILE(&pPGM->StatRZTrap0e, "/PGM/CPU%d/RZ/Trap0e", "Profiling of the PGMTrap0eHandler() body.");
1715	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTimeCheckPageFault, "/PGM/CPU%d/RZ/Trap0e/Time/CheckPageFault", "Profiling of checking for dirty/access emulation faults.");
1716	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTimeSyncPT, "/PGM/CPU%d/RZ/Trap0e/Time/SyncPT", "Profiling of lazy page table syncing.");
1717	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTimeMapping, "/PGM/CPU%d/RZ/Trap0e/Time/Mapping", "Profiling of checking virtual mappings.");
1718	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTimeOutOfSync, "/PGM/CPU%d/RZ/Trap0e/Time/OutOfSync", "Profiling of out of sync page handling.");
1719	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTimeHandlers, "/PGM/CPU%d/RZ/Trap0e/Time/Handlers", "Profiling of checking handlers.");
1720	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2CSAM, "/PGM/CPU%d/RZ/Trap0e/Time2/CSAM", "Profiling of the Trap0eHandler body when the cause is CSAM.");
1721	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2DirtyAndAccessed, "/PGM/CPU%d/RZ/Trap0e/Time2/DirtyAndAccessedBits", "Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation.");
1722	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2GuestTrap, "/PGM/CPU%d/RZ/Trap0e/Time2/GuestTrap", "Profiling of the Trap0eHandler body when the cause is a guest trap.");
1723	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2HndPhys, "/PGM/CPU%d/RZ/Trap0e/Time2/HandlerPhysical", "Profiling of the Trap0eHandler body when the cause is a physical handler.");
1724	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2HndVirt, "/PGM/CPU%d/RZ/Trap0e/Time2/HandlerVirtual", "Profiling of the Trap0eHandler body when the cause is a virtual handler.");
1725	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2HndUnhandled, "/PGM/CPU%d/RZ/Trap0e/Time2/HandlerUnhandled", "Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page.");
1726	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2Misc, "/PGM/CPU%d/RZ/Trap0e/Time2/Misc", "Profiling of the Trap0eHandler body when the cause is not known.");
1727	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2OutOfSync, "/PGM/CPU%d/RZ/Trap0e/Time2/OutOfSync", "Profiling of the Trap0eHandler body when the cause is an out-of-sync page.");
1728	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2OutOfSyncHndPhys, "/PGM/CPU%d/RZ/Trap0e/Time2/OutOfSyncHndPhys", "Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page.");
1729	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2OutOfSyncHndVirt, "/PGM/CPU%d/RZ/Trap0e/Time2/OutOfSyncHndVirt", "Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page.");
1730	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2OutOfSyncHndObs, "/PGM/CPU%d/RZ/Trap0e/Time2/OutOfSyncObsHnd", "Profiling of the Trap0eHandler body when the cause is an obsolete handler page.");
1731	PGM_REG_PROFILE(&pPGM->StatRZTrap0eTime2SyncPT, "/PGM/CPU%d/RZ/Trap0e/Time2/SyncPT", "Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT.");
1732	PGM_REG_COUNTER(&pPGM->StatRZTrap0eConflicts, "/PGM/CPU%d/RZ/Trap0e/Conflicts", "The number of times #PF was caused by an undetected conflict.");
1733	PGM_REG_COUNTER(&pPGM->StatRZTrap0eHandlersMapping, "/PGM/CPU%d/RZ/Trap0e/Handlers/Mapping", "Number of traps due to access handlers in mappings.");
1734	PGM_REG_COUNTER(&pPGM->StatRZTrap0eHandlersOutOfSync, "/PGM/CPU%d/RZ/Trap0e/Handlers/OutOfSync", "Number of traps due to out-of-sync handled pages.");
1735	PGM_REG_COUNTER(&pPGM->StatRZTrap0eHandlersPhysical, "/PGM/CPU%d/RZ/Trap0e/Handlers/Physical", "Number of traps due to physical access handlers.");
1736	PGM_REG_COUNTER(&pPGM->StatRZTrap0eHandlersVirtual, "/PGM/CPU%d/RZ/Trap0e/Handlers/Virtual", "Number of traps due to virtual access handlers.");
1737	PGM_REG_COUNTER(&pPGM->StatRZTrap0eHandlersVirtualByPhys, "/PGM/CPU%d/RZ/Trap0e/Handlers/VirtualByPhys", "Number of traps due to virtual access handlers by physical address.");
1738	PGM_REG_COUNTER(&pPGM->StatRZTrap0eHandlersVirtualUnmarked,"/PGM/CPU%d/RZ/Trap0e/Handlers/VirtualUnmarked","Number of traps due to virtual access handlers by virtual address (without proper physical flags).");
1739	PGM_REG_COUNTER(&pPGM->StatRZTrap0eHandlersUnhandled, "/PGM/CPU%d/RZ/Trap0e/Handlers/Unhandled", "Number of traps due to access outside range of monitored page(s).");
1740	PGM_REG_COUNTER(&pPGM->StatRZTrap0eHandlersInvalid, "/PGM/CPU%d/RZ/Trap0e/Handlers/Invalid", "Number of traps due to access to invalid physical memory.");
1741	PGM_REG_COUNTER(&pPGM->StatRZTrap0eUSNotPresentRead, "/PGM/CPU%d/RZ/Trap0e/Err/User/NPRead", "Number of user mode not present read page faults.");
1742	PGM_REG_COUNTER(&pPGM->StatRZTrap0eUSNotPresentWrite, "/PGM/CPU%d/RZ/Trap0e/Err/User/NPWrite", "Number of user mode not present write page faults.");
1743	PGM_REG_COUNTER(&pPGM->StatRZTrap0eUSWrite, "/PGM/CPU%d/RZ/Trap0e/Err/User/Write", "Number of user mode write page faults.");
1744	PGM_REG_COUNTER(&pPGM->StatRZTrap0eUSReserved, "/PGM/CPU%d/RZ/Trap0e/Err/User/Reserved", "Number of user mode reserved bit page faults.");
1745	PGM_REG_COUNTER(&pPGM->StatRZTrap0eUSNXE, "/PGM/CPU%d/RZ/Trap0e/Err/User/NXE", "Number of user mode NXE page faults.");
1746	PGM_REG_COUNTER(&pPGM->StatRZTrap0eUSRead, "/PGM/CPU%d/RZ/Trap0e/Err/User/Read", "Number of user mode read page faults.");
1747	PGM_REG_COUNTER(&pPGM->StatRZTrap0eSVNotPresentRead, "/PGM/CPU%d/RZ/Trap0e/Err/Supervisor/NPRead", "Number of supervisor mode not present read page faults.");
1748	PGM_REG_COUNTER(&pPGM->StatRZTrap0eSVNotPresentWrite, "/PGM/CPU%d/RZ/Trap0e/Err/Supervisor/NPWrite", "Number of supervisor mode not present write page faults.");
1749	PGM_REG_COUNTER(&pPGM->StatRZTrap0eSVWrite, "/PGM/CPU%d/RZ/Trap0e/Err/Supervisor/Write", "Number of supervisor mode write page faults.");
1750	PGM_REG_COUNTER(&pPGM->StatRZTrap0eSVReserved, "/PGM/CPU%d/RZ/Trap0e/Err/Supervisor/Reserved", "Number of supervisor mode reserved bit page faults.");
1751	PGM_REG_COUNTER(&pPGM->StatRZTrap0eSNXE, "/PGM/CPU%d/RZ/Trap0e/Err/Supervisor/NXE", "Number of supervisor mode NXE page faults.");
1752	PGM_REG_COUNTER(&pPGM->StatRZTrap0eGuestPF, "/PGM/CPU%d/RZ/Trap0e/GuestPF", "Number of real guest page faults.");
1753	PGM_REG_COUNTER(&pPGM->StatRZTrap0eGuestPFUnh, "/PGM/CPU%d/RZ/Trap0e/GuestPF/Unhandled", "Number of real guest page faults from the 'unhandled' case.");
1754	PGM_REG_COUNTER(&pPGM->StatRZTrap0eGuestPFMapping, "/PGM/CPU%d/RZ/Trap0e/GuestPF/InMapping", "Number of real guest page faults in a mapping.");
1755	PGM_REG_COUNTER(&pPGM->StatRZTrap0eWPEmulInRZ, "/PGM/CPU%d/RZ/Trap0e/WP/InRZ", "Number of guest page faults due to X86_CR0_WP emulation.");
1756	PGM_REG_COUNTER(&pPGM->StatRZTrap0eWPEmulToR3, "/PGM/CPU%d/RZ/Trap0e/WP/ToR3", "Number of guest page faults due to X86_CR0_WP emulation (forward to R3 for emulation).");
1757	for (unsigned j = 0; j < RT_ELEMENTS(pPGM->StatRZTrap0ePD); j++)
1758	STAMR3RegisterF(pVM, &pPGM->StatRZTrap0ePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
1759	"The number of traps in page directory n.", "/PGM/CPU%d/RZ/Trap0e/PD/%04X", i, j);
1760
1761	PGM_REG_COUNTER(&pPGM->StatRZGuestCR3WriteHandled, "/PGM/CPU%d/RZ/CR3WriteHandled", "The number of times the Guest CR3 change was successfully handled.");
1762	PGM_REG_COUNTER(&pPGM->StatRZGuestCR3WriteUnhandled, "/PGM/CPU%d/RZ/CR3WriteUnhandled", "The number of times the Guest CR3 change was passed back to the recompiler.");
1763	PGM_REG_COUNTER(&pPGM->StatRZGuestCR3WriteConflict, "/PGM/CPU%d/RZ/CR3WriteConflict", "The number of times the Guest CR3 monitoring detected a conflict.");
1764	PGM_REG_COUNTER(&pPGM->StatRZGuestROMWriteHandled, "/PGM/CPU%d/RZ/ROMWriteHandled", "The number of times the Guest ROM change was successfully handled.");
1765	PGM_REG_COUNTER(&pPGM->StatRZGuestROMWriteUnhandled, "/PGM/CPU%d/RZ/ROMWriteUnhandled", "The number of times the Guest ROM change was passed back to the recompiler.");
1766
1767	/* HC only: */
1768
1769	/* RZ & R3: */
1770	PGM_REG_PROFILE(&pPGM->StatRZSyncCR3, "/PGM/CPU%d/RZ/SyncCR3", "Profiling of the PGMSyncCR3() body.");
1771	PGM_REG_PROFILE(&pPGM->StatRZSyncCR3Handlers, "/PGM/CPU%d/RZ/SyncCR3/Handlers", "Profiling of the PGMSyncCR3() update handler section.");
1772	PGM_REG_COUNTER(&pPGM->StatRZSyncCR3Global, "/PGM/CPU%d/RZ/SyncCR3/Global", "The number of global CR3 syncs.");
1773	PGM_REG_COUNTER(&pPGM->StatRZSyncCR3NotGlobal, "/PGM/CPU%d/RZ/SyncCR3/NotGlobal", "The number of non-global CR3 syncs.");
1774	PGM_REG_COUNTER(&pPGM->StatRZSyncCR3DstCacheHit, "/PGM/CPU%d/RZ/SyncCR3/DstChacheHit", "The number of times we got some kind of a cache hit.");
1775	PGM_REG_COUNTER(&pPGM->StatRZSyncCR3DstFreed, "/PGM/CPU%d/RZ/SyncCR3/DstFreed", "The number of times we've had to free a shadow entry.");
1776	PGM_REG_COUNTER(&pPGM->StatRZSyncCR3DstFreedSrcNP, "/PGM/CPU%d/RZ/SyncCR3/DstFreedSrcNP", "The number of times we've had to free a shadow entry for which the source entry was not present.");
1777	PGM_REG_COUNTER(&pPGM->StatRZSyncCR3DstNotPresent, "/PGM/CPU%d/RZ/SyncCR3/DstNotPresent", "The number of times we've encountered a not present shadow entry for a present guest entry.");
1778	PGM_REG_COUNTER(&pPGM->StatRZSyncCR3DstSkippedGlobalPD, "/PGM/CPU%d/RZ/SyncCR3/DstSkippedGlobalPD", "The number of times a global page directory wasn't flushed.");
1779	PGM_REG_COUNTER(&pPGM->StatRZSyncCR3DstSkippedGlobalPT, "/PGM/CPU%d/RZ/SyncCR3/DstSkippedGlobalPT", "The number of times a page table with only global entries wasn't flushed.");
1780	PGM_REG_PROFILE(&pPGM->StatRZSyncPT, "/PGM/CPU%d/RZ/SyncPT", "Profiling of the pfnSyncPT() body.");
1781	PGM_REG_COUNTER(&pPGM->StatRZSyncPTFailed, "/PGM/CPU%d/RZ/SyncPT/Failed", "The number of times pfnSyncPT() failed.");
1782	PGM_REG_COUNTER(&pPGM->StatRZSyncPT4K, "/PGM/CPU%d/RZ/SyncPT/4K", "Nr of 4K PT syncs");
1783	PGM_REG_COUNTER(&pPGM->StatRZSyncPT4M, "/PGM/CPU%d/RZ/SyncPT/4M", "Nr of 4M PT syncs");
1784	PGM_REG_COUNTER(&pPGM->StatRZSyncPagePDNAs, "/PGM/CPU%d/RZ/SyncPagePDNAs", "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
1785	PGM_REG_COUNTER(&pPGM->StatRZSyncPagePDOutOfSync, "/PGM/CPU%d/RZ/SyncPagePDOutOfSync", "The number of time we've encountered an out-of-sync PD in SyncPage.");
1786	PGM_REG_COUNTER(&pPGM->StatRZAccessedPage, "/PGM/CPU%d/RZ/AccessedPage", "The number of pages marked not present for accessed bit emulation.");
1787	PGM_REG_PROFILE(&pPGM->StatRZDirtyBitTracking, "/PGM/CPU%d/RZ/DirtyPage", "Profiling the dirty bit tracking in CheckPageFault().");
1788	PGM_REG_COUNTER(&pPGM->StatRZDirtyPage, "/PGM/CPU%d/RZ/DirtyPage/Mark", "The number of pages marked read-only for dirty bit tracking.");
1789	PGM_REG_COUNTER(&pPGM->StatRZDirtyPageBig, "/PGM/CPU%d/RZ/DirtyPage/MarkBig", "The number of 4MB pages marked read-only for dirty bit tracking.");
1790	PGM_REG_COUNTER(&pPGM->StatRZDirtyPageSkipped, "/PGM/CPU%d/RZ/DirtyPage/Skipped", "The number of pages already dirty or readonly.");
1791	PGM_REG_COUNTER(&pPGM->StatRZDirtyPageTrap, "/PGM/CPU%d/RZ/DirtyPage/Trap", "The number of traps generated for dirty bit tracking.");
1792	PGM_REG_COUNTER(&pPGM->StatRZDirtiedPage, "/PGM/CPU%d/RZ/DirtyPage/SetDirty", "The number of pages marked dirty because of write accesses.");
1793	PGM_REG_COUNTER(&pPGM->StatRZDirtyTrackRealPF, "/PGM/CPU%d/RZ/DirtyPage/RealPF", "The number of real pages faults during dirty bit tracking.");
1794	PGM_REG_COUNTER(&pPGM->StatRZPageAlreadyDirty, "/PGM/CPU%d/RZ/DirtyPage/AlreadySet", "The number of pages already marked dirty because of write accesses.");
1795	PGM_REG_PROFILE(&pPGM->StatRZInvalidatePage, "/PGM/CPU%d/RZ/InvalidatePage", "PGMInvalidatePage() profiling.");
1796	PGM_REG_COUNTER(&pPGM->StatRZInvalidatePage4KBPages, "/PGM/CPU%d/RZ/InvalidatePage/4KBPages", "The number of times PGMInvalidatePage() was called for a 4KB page.");
1797	PGM_REG_COUNTER(&pPGM->StatRZInvalidatePage4MBPages, "/PGM/CPU%d/RZ/InvalidatePage/4MBPages", "The number of times PGMInvalidatePage() was called for a 4MB page.");
1798	PGM_REG_COUNTER(&pPGM->StatRZInvalidatePage4MBPagesSkip, "/PGM/CPU%d/RZ/InvalidatePage/4MBPagesSkip","The number of times PGMInvalidatePage() skipped a 4MB page.");
1799	PGM_REG_COUNTER(&pPGM->StatRZInvalidatePagePDMappings, "/PGM/CPU%d/RZ/InvalidatePage/PDMappings", "The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict).");
1800	PGM_REG_COUNTER(&pPGM->StatRZInvalidatePagePDNAs, "/PGM/CPU%d/RZ/InvalidatePage/PDNAs", "The number of times PGMInvalidatePage() was called for a not accessed page directory.");
1801	PGM_REG_COUNTER(&pPGM->StatRZInvalidatePagePDNPs, "/PGM/CPU%d/RZ/InvalidatePage/PDNPs", "The number of times PGMInvalidatePage() was called for a not present page directory.");
1802	PGM_REG_COUNTER(&pPGM->StatRZInvalidatePagePDOutOfSync, "/PGM/CPU%d/RZ/InvalidatePage/PDOutOfSync", "The number of times PGMInvalidatePage() was called for an out of sync page directory.");
1803	PGM_REG_COUNTER(&pPGM->StatRZInvalidatePageSkipped, "/PGM/CPU%d/RZ/InvalidatePage/Skipped", "The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
1804	PGM_REG_COUNTER(&pPGM->StatRZPageOutOfSyncSupervisor, "/PGM/CPU%d/RZ/OutOfSync/SuperVisor", "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1805	PGM_REG_COUNTER(&pPGM->StatRZPageOutOfSyncUser, "/PGM/CPU%d/RZ/OutOfSync/User", "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1806	PGM_REG_PROFILE(&pPGM->StatRZPrefetch, "/PGM/CPU%d/RZ/Prefetch", "PGMPrefetchPage profiling.");
1807	PGM_REG_PROFILE(&pPGM->StatRZFlushTLB, "/PGM/CPU%d/RZ/FlushTLB", "Profiling of the PGMFlushTLB() body.");
1808	PGM_REG_COUNTER(&pPGM->StatRZFlushTLBNewCR3, "/PGM/CPU%d/RZ/FlushTLB/NewCR3", "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
1809	PGM_REG_COUNTER(&pPGM->StatRZFlushTLBNewCR3Global, "/PGM/CPU%d/RZ/FlushTLB/NewCR3Global", "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
1810	PGM_REG_COUNTER(&pPGM->StatRZFlushTLBSameCR3, "/PGM/CPU%d/RZ/FlushTLB/SameCR3", "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
1811	PGM_REG_COUNTER(&pPGM->StatRZFlushTLBSameCR3Global, "/PGM/CPU%d/RZ/FlushTLB/SameCR3Global", "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
1812	PGM_REG_PROFILE(&pPGM->StatRZGstModifyPage, "/PGM/CPU%d/RZ/GstModifyPage", "Profiling of the PGMGstModifyPage() body.");
1813
1814	PGM_REG_PROFILE(&pPGM->StatR3SyncCR3, "/PGM/CPU%d/R3/SyncCR3", "Profiling of the PGMSyncCR3() body.");
1815	PGM_REG_PROFILE(&pPGM->StatR3SyncCR3Handlers, "/PGM/CPU%d/R3/SyncCR3/Handlers", "Profiling of the PGMSyncCR3() update handler section.");
1816	PGM_REG_COUNTER(&pPGM->StatR3SyncCR3Global, "/PGM/CPU%d/R3/SyncCR3/Global", "The number of global CR3 syncs.");
1817	PGM_REG_COUNTER(&pPGM->StatR3SyncCR3NotGlobal, "/PGM/CPU%d/R3/SyncCR3/NotGlobal", "The number of non-global CR3 syncs.");
1818	PGM_REG_COUNTER(&pPGM->StatR3SyncCR3DstCacheHit, "/PGM/CPU%d/R3/SyncCR3/DstChacheHit", "The number of times we got some kind of a cache hit.");
1819	PGM_REG_COUNTER(&pPGM->StatR3SyncCR3DstFreed, "/PGM/CPU%d/R3/SyncCR3/DstFreed", "The number of times we've had to free a shadow entry.");
1820	PGM_REG_COUNTER(&pPGM->StatR3SyncCR3DstFreedSrcNP, "/PGM/CPU%d/R3/SyncCR3/DstFreedSrcNP", "The number of times we've had to free a shadow entry for which the source entry was not present.");
1821	PGM_REG_COUNTER(&pPGM->StatR3SyncCR3DstNotPresent, "/PGM/CPU%d/R3/SyncCR3/DstNotPresent", "The number of times we've encountered a not present shadow entry for a present guest entry.");
1822	PGM_REG_COUNTER(&pPGM->StatR3SyncCR3DstSkippedGlobalPD, "/PGM/CPU%d/R3/SyncCR3/DstSkippedGlobalPD", "The number of times a global page directory wasn't flushed.");
1823	PGM_REG_COUNTER(&pPGM->StatR3SyncCR3DstSkippedGlobalPT, "/PGM/CPU%d/R3/SyncCR3/DstSkippedGlobalPT", "The number of times a page table with only global entries wasn't flushed.");
1824	PGM_REG_PROFILE(&pPGM->StatR3SyncPT, "/PGM/CPU%d/R3/SyncPT", "Profiling of the pfnSyncPT() body.");
1825	PGM_REG_COUNTER(&pPGM->StatR3SyncPTFailed, "/PGM/CPU%d/R3/SyncPT/Failed", "The number of times pfnSyncPT() failed.");
1826	PGM_REG_COUNTER(&pPGM->StatR3SyncPT4K, "/PGM/CPU%d/R3/SyncPT/4K", "Nr of 4K PT syncs");
1827	PGM_REG_COUNTER(&pPGM->StatR3SyncPT4M, "/PGM/CPU%d/R3/SyncPT/4M", "Nr of 4M PT syncs");
1828	PGM_REG_COUNTER(&pPGM->StatR3SyncPagePDNAs, "/PGM/CPU%d/R3/SyncPagePDNAs", "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
1829	PGM_REG_COUNTER(&pPGM->StatR3SyncPagePDOutOfSync, "/PGM/CPU%d/R3/SyncPagePDOutOfSync", "The number of time we've encountered an out-of-sync PD in SyncPage.");
1830	PGM_REG_COUNTER(&pPGM->StatR3AccessedPage, "/PGM/CPU%d/R3/AccessedPage", "The number of pages marked not present for accessed bit emulation.");
1831	PGM_REG_PROFILE(&pPGM->StatR3DirtyBitTracking, "/PGM/CPU%d/R3/DirtyPage", "Profiling the dirty bit tracking in CheckPageFault().");
1832	PGM_REG_COUNTER(&pPGM->StatR3DirtyPage, "/PGM/CPU%d/R3/DirtyPage/Mark", "The number of pages marked read-only for dirty bit tracking.");
1833	PGM_REG_COUNTER(&pPGM->StatR3DirtyPageBig, "/PGM/CPU%d/R3/DirtyPage/MarkBig", "The number of 4MB pages marked read-only for dirty bit tracking.");
1834	PGM_REG_COUNTER(&pPGM->StatR3DirtyPageSkipped, "/PGM/CPU%d/R3/DirtyPage/Skipped", "The number of pages already dirty or readonly.");
1835	PGM_REG_COUNTER(&pPGM->StatR3DirtyPageTrap, "/PGM/CPU%d/R3/DirtyPage/Trap", "The number of traps generated for dirty bit tracking.");
1836	PGM_REG_COUNTER(&pPGM->StatR3DirtiedPage, "/PGM/CPU%d/R3/DirtyPage/SetDirty", "The number of pages marked dirty because of write accesses.");
1837	PGM_REG_COUNTER(&pPGM->StatR3DirtyTrackRealPF, "/PGM/CPU%d/R3/DirtyPage/RealPF", "The number of real pages faults during dirty bit tracking.");
1838	PGM_REG_COUNTER(&pPGM->StatR3PageAlreadyDirty, "/PGM/CPU%d/R3/DirtyPage/AlreadySet", "The number of pages already marked dirty because of write accesses.");
1839	PGM_REG_PROFILE(&pPGM->StatR3InvalidatePage, "/PGM/CPU%d/R3/InvalidatePage", "PGMInvalidatePage() profiling.");
1840	PGM_REG_COUNTER(&pPGM->StatR3InvalidatePage4KBPages, "/PGM/CPU%d/R3/InvalidatePage/4KBPages", "The number of times PGMInvalidatePage() was called for a 4KB page.");
1841	PGM_REG_COUNTER(&pPGM->StatR3InvalidatePage4MBPages, "/PGM/CPU%d/R3/InvalidatePage/4MBPages", "The number of times PGMInvalidatePage() was called for a 4MB page.");
1842	PGM_REG_COUNTER(&pPGM->StatR3InvalidatePage4MBPagesSkip, "/PGM/CPU%d/R3/InvalidatePage/4MBPagesSkip","The number of times PGMInvalidatePage() skipped a 4MB page.");
1843	PGM_REG_COUNTER(&pPGM->StatR3InvalidatePagePDMappings, "/PGM/CPU%d/R3/InvalidatePage/PDMappings", "The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict).");
1844	PGM_REG_COUNTER(&pPGM->StatR3InvalidatePagePDNAs, "/PGM/CPU%d/R3/InvalidatePage/PDNAs", "The number of times PGMInvalidatePage() was called for a not accessed page directory.");
1845	PGM_REG_COUNTER(&pPGM->StatR3InvalidatePagePDNPs, "/PGM/CPU%d/R3/InvalidatePage/PDNPs", "The number of times PGMInvalidatePage() was called for a not present page directory.");
1846	PGM_REG_COUNTER(&pPGM->StatR3InvalidatePagePDOutOfSync, "/PGM/CPU%d/R3/InvalidatePage/PDOutOfSync", "The number of times PGMInvalidatePage() was called for an out of sync page directory.");
1847	PGM_REG_COUNTER(&pPGM->StatR3InvalidatePageSkipped, "/PGM/CPU%d/R3/InvalidatePage/Skipped", "The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
1848	PGM_REG_COUNTER(&pPGM->StatR3PageOutOfSyncSupervisor, "/PGM/CPU%d/R3/OutOfSync/SuperVisor", "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1849	PGM_REG_COUNTER(&pPGM->StatR3PageOutOfSyncUser, "/PGM/CPU%d/R3/OutOfSync/User", "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
1850	PGM_REG_PROFILE(&pPGM->StatR3Prefetch, "/PGM/CPU%d/R3/Prefetch", "PGMPrefetchPage profiling.");
1851	PGM_REG_PROFILE(&pPGM->StatR3FlushTLB, "/PGM/CPU%d/R3/FlushTLB", "Profiling of the PGMFlushTLB() body.");
1852	PGM_REG_COUNTER(&pPGM->StatR3FlushTLBNewCR3, "/PGM/CPU%d/R3/FlushTLB/NewCR3", "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
1853	PGM_REG_COUNTER(&pPGM->StatR3FlushTLBNewCR3Global, "/PGM/CPU%d/R3/FlushTLB/NewCR3Global", "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
1854	PGM_REG_COUNTER(&pPGM->StatR3FlushTLBSameCR3, "/PGM/CPU%d/R3/FlushTLB/SameCR3", "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
1855	PGM_REG_COUNTER(&pPGM->StatR3FlushTLBSameCR3Global, "/PGM/CPU%d/R3/FlushTLB/SameCR3Global", "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
1856	PGM_REG_PROFILE(&pPGM->StatR3GstModifyPage, "/PGM/CPU%d/R3/GstModifyPage", "Profiling of the PGMGstModifyPage() body.");
1857	#endif /* VBOX_WITH_STATISTICS */
1858
1859	#undef PGM_REG_PROFILE
1860	#undef PGM_REG_COUNTER
1861
1862	}
1863	}
1864
1865
1866	/**
1867	* Init the PGM bits that rely on VMMR0 and MM to be fully initialized.
1868	*
1869	* The dynamic mapping area will also be allocated and initialized at this
1870	* time. We could allocate it during PGMR3Init of course, but the mapping
1871	* wouldn't be allocated at that time preventing us from setting up the
1872	* page table entries with the dummy page.
1873	*
1874	* @returns VBox status code.
1875	* @param pVM VM handle.
1876	*/
1877	VMMR3DECL(int) PGMR3InitDynMap(PVM pVM)
1878	{
1879	RTGCPTR GCPtr;
1880	int rc;
1881
1882	/*
1883	* Reserve space for the dynamic mappings.
1884	*/
1885	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping", &GCPtr);
1886	if (RT_SUCCESS(rc))
1887	pVM->pgm.s.pbDynPageMapBaseGC = GCPtr;
1888
1889	if ( RT_SUCCESS(rc)
1890	&& (pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_PAE_SHIFT) != ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_PAE_SHIFT))
1891	{
1892	rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping not crossing", &GCPtr);
1893	if (RT_SUCCESS(rc))
1894	pVM->pgm.s.pbDynPageMapBaseGC = GCPtr;
1895	}
1896	if (RT_SUCCESS(rc))
1897	{
1898	AssertRelease((pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_PAE_SHIFT) == ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_PAE_SHIFT));
1899	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
1900	}
1901	return rc;
1902	}
1903
1904
1905	/**
1906	* Ring-3 init finalizing.
1907	*
1908	* @returns VBox status code.
1909	* @param pVM The VM handle.
1910	*/
1911	VMMR3DECL(int) PGMR3InitFinalize(PVM pVM)
1912	{
1913	int rc;
1914
1915	/*
1916	* Reserve space for the dynamic mappings.
1917	* Initialize the dynamic mapping pages with dummy pages to simply the cache.
1918	*/
1919	/* get the pointer to the page table entries. */
1920	PPGMMAPPING pMapping = pgmGetMapping(pVM, pVM->pgm.s.pbDynPageMapBaseGC);
1921	AssertRelease(pMapping);
1922	const uintptr_t off = pVM->pgm.s.pbDynPageMapBaseGC - pMapping->GCPtr;
1923	const unsigned iPT = off >> X86_PD_SHIFT;
1924	const unsigned iPG = (off >> X86_PT_SHIFT) & X86_PT_MASK;
1925	pVM->pgm.s.paDynPageMap32BitPTEsGC = pMapping->aPTs[iPT].pPTRC + iPG * sizeof(pMapping->aPTs[0].pPTR3->a[0]);
1926	pVM->pgm.s.paDynPageMapPaePTEsGC = pMapping->aPTs[iPT].paPaePTsRC + iPG * sizeof(pMapping->aPTs[0].paPaePTsR3->a[0]);
1927
1928	/* init cache */
1929	RTHCPHYS HCPhysDummy = MMR3PageDummyHCPhys(pVM);
1930	for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.aHCPhysDynPageMapCache); i++)
1931	pVM->pgm.s.aHCPhysDynPageMapCache[i] = HCPhysDummy;
1932
1933	for (unsigned i = 0; i < MM_HYPER_DYNAMIC_SIZE; i += PAGE_SIZE)
1934	{
1935	rc = PGMMap(pVM, pVM->pgm.s.pbDynPageMapBaseGC + i, HCPhysDummy, PAGE_SIZE, 0);
1936	AssertRCReturn(rc, rc);
1937	}
1938
1939	/*
1940	* Note that AMD uses all the 8 reserved bits for the address (so 40 bits in total);
1941	* Intel only goes up to 36 bits, so we stick to 36 as well.
1942	*/
1943	/** @todo How to test for the 40 bits support? Long mode seems to be the test criterium. */
1944	uint32_t u32Dummy, u32Features;
1945	CPUMGetGuestCpuId(VMMGetCpu(pVM), 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
1946
1947	if (u32Features & X86_CPUID_FEATURE_EDX_PSE36)
1948	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(36) - 1;
1949	else
1950	pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(32) - 1;
1951
1952	/*
1953	* Allocate memory if we're supposed to do that.
1954	*/
1955	if (pVM->pgm.s.fRamPreAlloc)
1956	rc = pgmR3PhysRamPreAllocate(pVM);
1957
1958	LogRel(("PGMR3InitFinalize: 4 MB PSE mask %RGp\n", pVM->pgm.s.GCPhys4MBPSEMask));
1959	return rc;
1960	}
1961
1962
1963	/**
1964	* Applies relocations to data and code managed by this component.
1965	*
1966	* This function will be called at init and whenever the VMM need to relocate it
1967	* self inside the GC.
1968	*
1969	* @param pVM The VM.
1970	* @param offDelta Relocation delta relative to old location.
1971	*/
1972	VMMR3DECL(void) PGMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
1973	{
1974	LogFlow(("PGMR3Relocate %RGv to %RGv\n", pVM->pgm.s.GCPtrCR3Mapping, pVM->pgm.s.GCPtrCR3Mapping + offDelta));
1975
1976	/*
1977	* Paging stuff.
1978	*/
1979	pVM->pgm.s.GCPtrCR3Mapping += offDelta;
1980
1981	pgmR3ModeDataInit(pVM, true /* resolve GC/R0 symbols */);
1982
1983	/* Shadow, guest and both mode switch & relocation for each VCPU. */
1984	for (unsigned i=0;i<pVM->cCPUs;i++)
1985	{
1986	PVMCPU pVCpu = &pVM->aCpus[i];
1987
1988	pgmR3ModeDataSwitch(pVM, pVCpu, pVCpu->pgm.s.enmShadowMode, pVCpu->pgm.s.enmGuestMode);
1989
1990	PGM_SHW_PFN(Relocate, pVCpu)(pVCpu, offDelta);
1991	PGM_GST_PFN(Relocate, pVCpu)(pVCpu, offDelta);
1992	PGM_BTH_PFN(Relocate, pVCpu)(pVCpu, offDelta);
1993	}
1994
1995	/*
1996	* Trees.
1997	*/
1998	pVM->pgm.s.pTreesRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pTreesR3);
1999
2000	/*
2001	* Ram ranges.
2002	*/
2003	if (pVM->pgm.s.pRamRangesR3)
2004	{
2005	/* Update the pSelfRC pointers and relink them. */
2006	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
2007	if (!(pCur->fFlags & PGM_RAM_RANGE_FLAGS_FLOATING))
2008	pCur->pSelfRC = MMHyperCCToRC(pVM, pCur);
2009	pgmR3PhysRelinkRamRanges(pVM);
2010	}
2011
2012	/*
2013	* Update the two page directories with all page table mappings.
2014	* (One or more of them have changed, that's why we're here.)
2015	*/
2016	pVM->pgm.s.pMappingsRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pMappingsR3);
2017	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur->pNextR3; pCur = pCur->pNextR3)
2018	pCur->pNextRC = MMHyperR3ToRC(pVM, pCur->pNextR3);
2019
2020	/* Relocate GC addresses of Page Tables. */
2021	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
2022	{
2023	for (RTHCUINT i = 0; i < pCur->cPTs; i++)
2024	{
2025	pCur->aPTs[i].pPTRC = MMHyperR3ToRC(pVM, pCur->aPTs[i].pPTR3);
2026	pCur->aPTs[i].paPaePTsRC = MMHyperR3ToRC(pVM, pCur->aPTs[i].paPaePTsR3);
2027	}
2028	}
2029
2030	/*
2031	* Dynamic page mapping area.
2032	*/
2033	pVM->pgm.s.paDynPageMap32BitPTEsGC += offDelta;
2034	pVM->pgm.s.paDynPageMapPaePTEsGC += offDelta;
2035	pVM->pgm.s.pbDynPageMapBaseGC += offDelta;
2036
2037	/*
2038	* The Zero page.
2039	*/
2040	pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
2041	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
2042	AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTR0PTR \|\| !VMMIsHwVirtExtForced(pVM));
2043	#else
2044	AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTR0PTR);
2045	#endif
2046
2047	/*
2048	* Physical and virtual handlers.
2049	*/
2050	RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, true, pgmR3RelocatePhysHandler, &offDelta);
2051	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesR3->VirtHandlers, true, pgmR3RelocateVirtHandler, &offDelta);
2052	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesR3->HyperVirtHandlers, true, pgmR3RelocateHyperVirtHandler, &offDelta);
2053
2054	/*
2055	* The page pool.
2056	*/
2057	pgmR3PoolRelocate(pVM);
2058	}
2059
2060
2061	/**
2062	* Callback function for relocating a physical access handler.
2063	*
2064	* @returns 0 (continue enum)
2065	* @param pNode Pointer to a PGMPHYSHANDLER node.
2066	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
2067	* not certain the delta will fit in a void pointer for all possible configs.
2068	*/
2069	static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser)
2070	{
2071	PPGMPHYSHANDLER pHandler = (PPGMPHYSHANDLER)pNode;
2072	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
2073	if (pHandler->pfnHandlerRC)
2074	pHandler->pfnHandlerRC += offDelta;
2075	if (pHandler->pvUserRC >= 0x10000)
2076	pHandler->pvUserRC += offDelta;
2077	return 0;
2078	}
2079
2080
2081	/**
2082	* Callback function for relocating a virtual access handler.
2083	*
2084	* @returns 0 (continue enum)
2085	* @param pNode Pointer to a PGMVIRTHANDLER node.
2086	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
2087	* not certain the delta will fit in a void pointer for all possible configs.
2088	*/
2089	static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
2090	{
2091	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
2092	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
2093	Assert( pHandler->enmType == PGMVIRTHANDLERTYPE_ALL
2094	\|\| pHandler->enmType == PGMVIRTHANDLERTYPE_WRITE);
2095	Assert(pHandler->pfnHandlerRC);
2096	pHandler->pfnHandlerRC += offDelta;
2097	return 0;
2098	}
2099
2100
2101	/**
2102	* Callback function for relocating a virtual access handler for the hypervisor mapping.
2103	*
2104	* @returns 0 (continue enum)
2105	* @param pNode Pointer to a PGMVIRTHANDLER node.
2106	* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
2107	* not certain the delta will fit in a void pointer for all possible configs.
2108	*/
2109	static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
2110	{
2111	PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
2112	RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
2113	Assert(pHandler->enmType == PGMVIRTHANDLERTYPE_HYPERVISOR);
2114	Assert(pHandler->pfnHandlerRC);
2115	pHandler->pfnHandlerRC += offDelta;
2116	return 0;
2117	}
2118
2119
2120	/**
2121	* The VM is being reset.
2122	*
2123	* For the PGM component this means that any PD write monitors
2124	* needs to be removed.
2125	*
2126	* @param pVM VM handle.
2127	*/
2128	VMMR3DECL(void) PGMR3Reset(PVM pVM)
2129	{
2130	int rc;
2131
2132	LogFlow(("PGMR3Reset:\n"));
2133	VM_ASSERT_EMT(pVM);
2134
2135	pgmLock(pVM);
2136
2137	/*
2138	* Unfix any fixed mappings and disable CR3 monitoring.
2139	*/
2140	pVM->pgm.s.fMappingsFixed = false;
2141	pVM->pgm.s.GCPtrMappingFixed = 0;
2142	pVM->pgm.s.cbMappingFixed = 0;
2143
2144	/* Exit the guest paging mode before the pgm pool gets reset.
2145	* Important to clean up the amd64 case.
2146	*/
2147	for (unsigned i=0;i<pVM->cCPUs;i++)
2148	{
2149	PVMCPU pVCpu = &pVM->aCpus[i];
2150
2151	rc = PGM_GST_PFN(Exit, pVCpu)(pVCpu);
2152	AssertRC(rc);
2153	}
2154
2155	#ifdef DEBUG
2156	DBGFR3InfoLog(pVM, "mappings", NULL);
2157	DBGFR3InfoLog(pVM, "handlers", "all nostat");
2158	#endif
2159
2160	/*
2161	* Reset the shadow page pool.
2162	*/
2163	pgmR3PoolReset(pVM);
2164
2165	for (unsigned i=0;i<pVM->cCPUs;i++)
2166	{
2167	PVMCPU pVCpu = &pVM->aCpus[i];
2168
2169	/*
2170	* Re-init other members.
2171	*/
2172	pVCpu->pgm.s.fA20Enabled = true;
2173
2174	/*
2175	* Clear the FFs PGM owns.
2176	*/
2177	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
2178	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
2179	}
2180
2181	/*
2182	* Reset (zero) RAM pages.
2183	*/
2184	rc = pgmR3PhysRamReset(pVM);
2185	if (RT_SUCCESS(rc))
2186	{
2187	/*
2188	* Reset (zero) shadow ROM pages.
2189	*/
2190	rc = pgmR3PhysRomReset(pVM);
2191	if (RT_SUCCESS(rc))
2192	{
2193	/*
2194	* Switch mode back to real mode.
2195	*/
2196	for (unsigned i=0;i<pVM->cCPUs;i++)
2197	{
2198	PVMCPU pVCpu = &pVM->aCpus[i];
2199
2200	rc = PGMR3ChangeMode(pVM, pVCpu, PGMMODE_REAL);
2201	AssertRC(rc);
2202
2203	STAM_REL_COUNTER_RESET(&pVCpu->pgm.s.cGuestModeChanges);
2204	}
2205	}
2206	}
2207
2208	pgmUnlock(pVM);
2209	//return rc;
2210	AssertReleaseRC(rc);
2211	}
2212
2213
2214	#ifdef VBOX_STRICT
2215	/**
2216	* VM state change callback for clearing fNoMorePhysWrites after
2217	* a snapshot has been created.
2218	*/
2219	static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser)
2220	{
2221	if (enmState == VMSTATE_RUNNING)
2222	pVM->pgm.s.fNoMorePhysWrites = false;
2223	}
2224	#endif
2225
2226
2227	/**
2228	* Terminates the PGM.
2229	*
2230	* @returns VBox status code.
2231	* @param pVM Pointer to VM structure.
2232	*/
2233	VMMR3DECL(int) PGMR3Term(PVM pVM)
2234	{
2235	PGMDeregisterStringFormatTypes();
2236	return PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
2237	}
2238
2239
2240	/**
2241	* Terminates the per-VCPU PGM.
2242	*
2243	* Termination means cleaning up and freeing all resources,
2244	* the VM it self is at this point powered off or suspended.
2245	*
2246	* @returns VBox status code.
2247	* @param pVM The VM to operate on.
2248	*/
2249	VMMR3DECL(int) PGMR3TermCPU(PVM pVM)
2250	{
2251	return 0;
2252	}
2253
2254
2255	/**
2256	* Find the ROM tracking structure for the given page.
2257	*
2258	* @returns Pointer to the ROM page structure. NULL if the caller didn't check
2259	* that it's a ROM page.
2260	* @param pVM The VM handle.
2261	* @param GCPhys The address of the ROM page.
2262	*/
2263	static PPGMROMPAGE pgmR3GetRomPage(PVM pVM, RTGCPHYS GCPhys)
2264	{
2265	for (PPGMROMRANGE pRomRange = pVM->pgm.s.CTX_SUFF(pRomRanges);
2266	pRomRange;
2267	pRomRange = pRomRange->CTX_SUFF(pNext))
2268	{
2269	RTGCPHYS off = GCPhys - pRomRange->GCPhys;
2270	if (GCPhys - pRomRange->GCPhys < pRomRange->cb)
2271	return &pRomRange->aPages[off >> PAGE_SHIFT];
2272	}
2273	return NULL;
2274	}
2275
2276
2277	/**
2278	* Save zero indicator + bits for the specified page.
2279	*
2280	* @returns VBox status code, errors are logged/asserted before returning.
2281	* @param pVM The VM handle.
2282	* @param pSSH The saved state handle.
2283	* @param pPage The page to save.
2284	* @param GCPhys The address of the page.
2285	* @param pRam The ram range (for error logging).
2286	*/
2287	static int pgmR3SavePage(PVM pVM, PSSMHANDLE pSSM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2288	{
2289	int rc;
2290	if (PGM_PAGE_IS_ZERO(pPage))
2291	rc = SSMR3PutU8(pSSM, 0);
2292	else
2293	{
2294	void const *pvPage;
2295	rc = pgmPhysGCPhys2CCPtrInternalReadOnly(pVM, pPage, GCPhys, &pvPage);
2296	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] GCPhys=%#x %s\n", pPage, GCPhys, pRam->pszDesc), rc);
2297
2298	SSMR3PutU8(pSSM, 1);
2299	rc = SSMR3PutMem(pSSM, pvPage, PAGE_SIZE);
2300	}
2301	return rc;
2302	}
2303
2304
2305	/**
2306	* Save a shadowed ROM page.
2307	*
2308	* Format: Type, protection, and two pages with zero indicators.
2309	*
2310	* @returns VBox status code, errors are logged/asserted before returning.
2311	* @param pVM The VM handle.
2312	* @param pSSH The saved state handle.
2313	* @param pPage The page to save.
2314	* @param GCPhys The address of the page.
2315	* @param pRam The ram range (for error logging).
2316	*/
2317	static int pgmR3SaveShadowedRomPage(PVM pVM, PSSMHANDLE pSSM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2318	{
2319	/* Need to save both pages and the current state. */
2320	PPGMROMPAGE pRomPage = pgmR3GetRomPage(pVM, GCPhys);
2321	AssertLogRelMsgReturn(pRomPage, ("GCPhys=%RGp %s\n", GCPhys, pRam->pszDesc), VERR_INTERNAL_ERROR);
2322
2323	SSMR3PutU8(pSSM, PGMPAGETYPE_ROM_SHADOW);
2324	SSMR3PutU8(pSSM, pRomPage->enmProt);
2325
2326	int rc = pgmR3SavePage(pVM, pSSM, pPage, GCPhys, pRam);
2327	if (RT_SUCCESS(rc))
2328	{
2329	PPGMPAGE pPagePassive = PGMROMPROT_IS_ROM(pRomPage->enmProt) ? &pRomPage->Shadow : &pRomPage->Virgin;
2330	rc = pgmR3SavePage(pVM, pSSM, pPagePassive, GCPhys, pRam);
2331	}
2332	return rc;
2333	}
2334
2335	/** PGM fields to save/load. */
2336	static const SSMFIELD s_aPGMFields[] =
2337	{
2338	SSMFIELD_ENTRY( PGM, fMappingsFixed),
2339	SSMFIELD_ENTRY_GCPTR( PGM, GCPtrMappingFixed),
2340	SSMFIELD_ENTRY( PGM, cbMappingFixed),
2341	SSMFIELD_ENTRY_TERM()
2342	};
2343
2344	static const SSMFIELD s_aPGMCpuFields[] =
2345	{
2346	SSMFIELD_ENTRY( PGMCPU, fA20Enabled),
2347	SSMFIELD_ENTRY_GCPHYS( PGMCPU, GCPhysA20Mask),
2348	SSMFIELD_ENTRY( PGMCPU, enmGuestMode),
2349	SSMFIELD_ENTRY_TERM()
2350	};
2351
2352	/* For loading old saved states. (pre-smp) */
2353	typedef struct
2354	{
2355	/** If set no conflict checks are required. (boolean) */
2356	bool fMappingsFixed;
2357	/** Size of fixed mapping */
2358	uint32_t cbMappingFixed;
2359	/** Base address (GC) of fixed mapping */
2360	RTGCPTR GCPtrMappingFixed;
2361	/** A20 gate mask.
2362	* Our current approach to A20 emulation is to let REM do it and don't bother
2363	* anywhere else. The interesting Guests will be operating with it enabled anyway.
2364	* But whould need arrise, we'll subject physical addresses to this mask. */
2365	RTGCPHYS GCPhysA20Mask;
2366	/** A20 gate state - boolean! */
2367	bool fA20Enabled;
2368	/** The guest paging mode. */
2369	PGMMODE enmGuestMode;
2370	} PGMOLD;
2371
2372	static const SSMFIELD s_aPGMFields_Old[] =
2373	{
2374	SSMFIELD_ENTRY( PGMOLD, fMappingsFixed),
2375	SSMFIELD_ENTRY_GCPTR( PGMOLD, GCPtrMappingFixed),
2376	SSMFIELD_ENTRY( PGMOLD, cbMappingFixed),
2377	SSMFIELD_ENTRY( PGMOLD, fA20Enabled),
2378	SSMFIELD_ENTRY_GCPHYS( PGMOLD, GCPhysA20Mask),
2379	SSMFIELD_ENTRY( PGMOLD, enmGuestMode),
2380	SSMFIELD_ENTRY_TERM()
2381	};
2382
2383
2384	/**
2385	* Execute state save operation.
2386	*
2387	* @returns VBox status code.
2388	* @param pVM VM Handle.
2389	* @param pSSM SSM operation handle.
2390	*/
2391	static DECLCALLBACK(int) pgmR3Save(PVM pVM, PSSMHANDLE pSSM)
2392	{
2393	int rc;
2394	unsigned i;
2395	PPGM pPGM = &pVM->pgm.s;
2396
2397	/*
2398	* Lock PGM and set the no-more-writes indicator.
2399	*/
2400	pgmLock(pVM);
2401	pVM->pgm.s.fNoMorePhysWrites = true;
2402
2403	/*
2404	* Save basic data (required / unaffected by relocation).
2405	*/
2406	SSMR3PutStruct(pSSM, pPGM, &s_aPGMFields[0]);
2407
2408	for (i=0;i<pVM->cCPUs;i++)
2409	{
2410	PVMCPU pVCpu = &pVM->aCpus[i];
2411
2412	SSMR3PutStruct(pSSM, &pVCpu->pgm.s, &s_aPGMCpuFields[0]);
2413	}
2414
2415	/*
2416	* The guest mappings.
2417	*/
2418	i = 0;
2419	for (PPGMMAPPING pMapping = pPGM->pMappingsR3; pMapping; pMapping = pMapping->pNextR3, i++)
2420	{
2421	SSMR3PutU32( pSSM, i);
2422	SSMR3PutStrZ( pSSM, pMapping->pszDesc); /* This is the best unique id we have... */
2423	SSMR3PutGCPtr( pSSM, pMapping->GCPtr);
2424	SSMR3PutGCUIntPtr(pSSM, pMapping->cPTs);
2425	}
2426	rc = SSMR3PutU32(pSSM, ~0); /* terminator. */
2427
2428	/*
2429	* Ram ranges and the memory they describe.
2430	*/
2431	i = 0;
2432	for (PPGMRAMRANGE pRam = pPGM->pRamRangesR3; pRam; pRam = pRam->pNextR3, i++)
2433	{
2434	/*
2435	* Save the ram range details.
2436	*/
2437	SSMR3PutU32(pSSM, i);
2438	SSMR3PutGCPhys(pSSM, pRam->GCPhys);
2439	SSMR3PutGCPhys(pSSM, pRam->GCPhysLast);
2440	SSMR3PutGCPhys(pSSM, pRam->cb);
2441	SSMR3PutU8(pSSM, !!pRam->pvR3); /* Boolean indicating memory or not. */
2442	SSMR3PutStrZ(pSSM, pRam->pszDesc); /* This is the best unique id we have... */
2443
2444	/*
2445	* Iterate the pages, only two special case.
2446	*/
2447	uint32_t const cPages = pRam->cb >> PAGE_SHIFT;
2448	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2449	{
2450	RTGCPHYS GCPhysPage = pRam->GCPhys + ((RTGCPHYS)iPage << PAGE_SHIFT);
2451	PPGMPAGE pPage = &pRam->aPages[iPage];
2452	uint8_t uType = PGM_PAGE_GET_TYPE(pPage);
2453
2454	if (uType == PGMPAGETYPE_ROM_SHADOW)
2455	rc = pgmR3SaveShadowedRomPage(pVM, pSSM, pPage, GCPhysPage, pRam);
2456	else if (uType == PGMPAGETYPE_MMIO2_ALIAS_MMIO)
2457	{
2458	/* MMIO2 alias -> MMIO; the device will just have to deal with this. */
2459	SSMR3PutU8(pSSM, PGMPAGETYPE_MMIO);
2460	rc = SSMR3PutU8(pSSM, 0 /* ZERO */);
2461	}
2462	else
2463	{
2464	SSMR3PutU8(pSSM, uType);
2465	rc = pgmR3SavePage(pVM, pSSM, pPage, GCPhysPage, pRam);
2466	}
2467	if (RT_FAILURE(rc))
2468	break;
2469	}
2470	if (RT_FAILURE(rc))
2471	break;
2472	}
2473
2474	pgmUnlock(pVM);
2475	return SSMR3PutU32(pSSM, ~0); /* terminator. */
2476	}
2477
2478
2479	/**
2480	* Load an ignored page.
2481	*
2482	* @returns VBox status code.
2483	* @param pSSM The saved state handle.
2484	*/
2485	static int pgmR3LoadPageToDevNull(PSSMHANDLE pSSM)
2486	{
2487	uint8_t abPage[PAGE_SIZE];
2488	return SSMR3GetMem(pSSM, &abPage[0], sizeof(abPage));
2489	}
2490
2491
2492	/**
2493	* Loads a page without any bits in the saved state, i.e. making sure it's
2494	* really zero.
2495	*
2496	* @returns VBox status code.
2497	* @param pVM The VM handle.
2498	* @param uType The page type or PGMPAGETYPE_INVALID (old saved
2499	* state).
2500	* @param pPage The guest page tracking structure.
2501	* @param GCPhys The page address.
2502	* @param pRam The ram range (logging).
2503	*/
2504	static int pgmR3LoadPageZero(PVM pVM, uint8_t uType, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2505	{
2506	if ( PGM_PAGE_GET_TYPE(pPage) != uType
2507	&& uType != PGMPAGETYPE_INVALID)
2508	return VERR_SSM_UNEXPECTED_DATA;
2509
2510	/* I think this should be sufficient. */
2511	if (!PGM_PAGE_IS_ZERO(pPage))
2512	return VERR_SSM_UNEXPECTED_DATA;
2513
2514	NOREF(pVM);
2515	NOREF(GCPhys);
2516	NOREF(pRam);
2517	return VINF_SUCCESS;
2518	}
2519
2520
2521	/**
2522	* Loads a page from the saved state.
2523	*
2524	* @returns VBox status code.
2525	* @param pVM The VM handle.
2526	* @param pSSM The SSM handle.
2527	* @param uType The page type or PGMPAGETYEP_INVALID (old saved
2528	* state).
2529	* @param pPage The guest page tracking structure.
2530	* @param GCPhys The page address.
2531	* @param pRam The ram range (logging).
2532	*/
2533	static int pgmR3LoadPageBits(PVM pVM, PSSMHANDLE pSSM, uint8_t uType, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2534	{
2535	int rc;
2536
2537	/*
2538	* Match up the type, dealing with MMIO2 aliases (dropped).
2539	*/
2540	AssertLogRelMsgReturn( PGM_PAGE_GET_TYPE(pPage) == uType
2541	\|\| uType == PGMPAGETYPE_INVALID,
2542	("pPage=%R[pgmpage] GCPhys=%#x %s\n", pPage, GCPhys, pRam->pszDesc),
2543	VERR_SSM_UNEXPECTED_DATA);
2544
2545	/*
2546	* Load the page.
2547	*/
2548	void *pvPage;
2549	rc = pgmPhysGCPhys2CCPtrInternal(pVM, pPage, GCPhys, &pvPage);
2550	if (RT_SUCCESS(rc))
2551	rc = SSMR3GetMem(pSSM, pvPage, PAGE_SIZE);
2552
2553	return rc;
2554	}
2555
2556
2557	/**
2558	* Loads a page (counter part to pgmR3SavePage).
2559	*
2560	* @returns VBox status code, fully bitched errors.
2561	* @param pVM The VM handle.
2562	* @param pSSM The SSM handle.
2563	* @param uType The page type.
2564	* @param pPage The page.
2565	* @param GCPhys The page address.
2566	* @param pRam The RAM range (for error messages).
2567	*/
2568	static int pgmR3LoadPage(PVM pVM, PSSMHANDLE pSSM, uint8_t uType, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2569	{
2570	uint8_t uState;
2571	int rc = SSMR3GetU8(pSSM, &uState);
2572	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] GCPhys=%#x %s rc=%Rrc\n", pPage, GCPhys, pRam->pszDesc, rc), rc);
2573	if (uState == 0 /* zero */)
2574	rc = pgmR3LoadPageZero(pVM, uType, pPage, GCPhys, pRam);
2575	else if (uState == 1)
2576	rc = pgmR3LoadPageBits(pVM, pSSM, uType, pPage, GCPhys, pRam);
2577	else
2578	rc = VERR_INTERNAL_ERROR;
2579	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] uState=%d uType=%d GCPhys=%RGp %s rc=%Rrc\n",
2580	pPage, uState, uType, GCPhys, pRam->pszDesc, rc),
2581	rc);
2582	return VINF_SUCCESS;
2583	}
2584
2585
2586	/**
2587	* Loads a shadowed ROM page.
2588	*
2589	* @returns VBox status code, errors are fully bitched.
2590	* @param pVM The VM handle.
2591	* @param pSSM The saved state handle.
2592	* @param pPage The page.
2593	* @param GCPhys The page address.
2594	* @param pRam The RAM range (for error messages).
2595	*/
2596	static int pgmR3LoadShadowedRomPage(PVM pVM, PSSMHANDLE pSSM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPGMRAMRANGE pRam)
2597	{
2598	/*
2599	* Load and set the protection first, then load the two pages, the first
2600	* one is the active the other is the passive.
2601	*/
2602	PPGMROMPAGE pRomPage = pgmR3GetRomPage(pVM, GCPhys);
2603	AssertLogRelMsgReturn(pRomPage, ("GCPhys=%RGp %s\n", GCPhys, pRam->pszDesc), VERR_INTERNAL_ERROR);
2604
2605	uint8_t uProt;
2606	int rc = SSMR3GetU8(pSSM, &uProt);
2607	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] GCPhys=%#x %s\n", pPage, GCPhys, pRam->pszDesc), rc);
2608	PGMROMPROT enmProt = (PGMROMPROT)uProt;
2609	AssertLogRelMsgReturn( enmProt >= PGMROMPROT_INVALID
2610	&& enmProt < PGMROMPROT_END,
2611	("enmProt=%d pPage=%R[pgmpage] GCPhys=%#x %s\n", enmProt, pPage, GCPhys, pRam->pszDesc),
2612	VERR_SSM_UNEXPECTED_DATA);
2613
2614	if (pRomPage->enmProt != enmProt)
2615	{
2616	rc = PGMR3PhysRomProtect(pVM, GCPhys, PAGE_SIZE, enmProt);
2617	AssertLogRelRCReturn(rc, rc);
2618	AssertLogRelReturn(pRomPage->enmProt == enmProt, VERR_INTERNAL_ERROR);
2619	}
2620
2621	PPGMPAGE pPageActive = PGMROMPROT_IS_ROM(enmProt) ? &pRomPage->Virgin : &pRomPage->Shadow;
2622	PPGMPAGE pPagePassive = PGMROMPROT_IS_ROM(enmProt) ? &pRomPage->Shadow : &pRomPage->Virgin;
2623	uint8_t u8ActiveType = PGMROMPROT_IS_ROM(enmProt) ? PGMPAGETYPE_ROM : PGMPAGETYPE_ROM_SHADOW;
2624	uint8_t u8PassiveType= PGMROMPROT_IS_ROM(enmProt) ? PGMPAGETYPE_ROM_SHADOW : PGMPAGETYPE_ROM;
2625
2626	rc = pgmR3LoadPage(pVM, pSSM, u8ActiveType, pPage, GCPhys, pRam);
2627	if (RT_SUCCESS(rc))
2628	{
2629	pPageActive = pPage;
2630	rc = pgmR3LoadPage(pVM, pSSM, u8PassiveType, pPagePassive, GCPhys, pRam);
2631	}
2632	return rc;
2633	}
2634
2635
2636	/**
2637	* Worker for pgmR3Load.
2638	*
2639	* @returns VBox status code.
2640	*
2641	* @param pVM The VM handle.
2642	* @param pSSM The SSM handle.
2643	* @param u32Version The saved state version.
2644	*/
2645	static int pgmR3LoadLocked(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
2646	{
2647	int rc;
2648	PPGM pPGM = &pVM->pgm.s;
2649	uint32_t u32Sep;
2650
2651	/*
2652	* Load basic data (required / unaffected by relocation).
2653	*/
2654	if (u32Version >= PGM_SAVED_STATE_VERSION)
2655	{
2656	rc = SSMR3GetStruct(pSSM, pPGM, &s_aPGMFields[0]);
2657	AssertLogRelRCReturn(rc, rc);
2658
2659	for (unsigned i=0;i<pVM->cCPUs;i++)
2660	{
2661	PVMCPU pVCpu = &pVM->aCpus[i];
2662
2663	rc = SSMR3GetStruct(pSSM, &pVCpu->pgm.s, &s_aPGMCpuFields[0]);
2664	AssertLogRelRCReturn(rc, rc);
2665	}
2666	}
2667	else
2668	if (u32Version >= PGM_SAVED_STATE_VERSION_RR_DESC)
2669	{
2670	PGMOLD pgmOld;
2671
2672	AssertRelease(pVM->cCPUs == 1);
2673
2674	rc = SSMR3GetStruct(pSSM, &pgmOld, &s_aPGMFields_Old[0]);
2675	AssertLogRelRCReturn(rc, rc);
2676
2677	pPGM->fMappingsFixed = pgmOld.fMappingsFixed;
2678	pPGM->GCPtrMappingFixed = pgmOld.GCPtrMappingFixed;
2679	pPGM->cbMappingFixed = pgmOld.cbMappingFixed;
2680
2681	pVM->aCpus[0].pgm.s.fA20Enabled = pgmOld.fA20Enabled;
2682	pVM->aCpus[0].pgm.s.GCPhysA20Mask = pgmOld.GCPhysA20Mask;
2683	pVM->aCpus[0].pgm.s.enmGuestMode = pgmOld.enmGuestMode;
2684	}
2685	else
2686	{
2687	AssertRelease(pVM->cCPUs == 1);
2688
2689	SSMR3GetBool(pSSM, &pPGM->fMappingsFixed);
2690	SSMR3GetGCPtr(pSSM, &pPGM->GCPtrMappingFixed);
2691	SSMR3GetU32(pSSM, &pPGM->cbMappingFixed);
2692
2693	uint32_t cbRamSizeIgnored;
2694	rc = SSMR3GetU32(pSSM, &cbRamSizeIgnored);
2695	if (RT_FAILURE(rc))
2696	return rc;
2697	SSMR3GetGCPhys(pSSM, &pVM->aCpus[0].pgm.s.GCPhysA20Mask);
2698
2699	uint32_t u32 = 0;
2700	SSMR3GetUInt(pSSM, &u32);
2701	pVM->aCpus[0].pgm.s.fA20Enabled = !!u32;
2702	SSMR3GetUInt(pSSM, &pVM->aCpus[0].pgm.s.fSyncFlags);
2703	RTUINT uGuestMode;
2704	SSMR3GetUInt(pSSM, &uGuestMode);
2705	pVM->aCpus[0].pgm.s.enmGuestMode = (PGMMODE)uGuestMode;
2706
2707	/* check separator. */
2708	SSMR3GetU32(pSSM, &u32Sep);
2709	if (RT_FAILURE(rc))
2710	return rc;
2711	if (u32Sep != (uint32_t)~0)
2712	{
2713	AssertMsgFailed(("u32Sep=%#x (first)\n", u32Sep));
2714	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2715	}
2716	}
2717
2718	/*
2719	* The guest mappings.
2720	*/
2721	uint32_t i = 0;
2722	for (;; i++)
2723	{
2724	/* Check the seqence number / separator. */
2725	rc = SSMR3GetU32(pSSM, &u32Sep);
2726	if (RT_FAILURE(rc))
2727	return rc;
2728	if (u32Sep == ~0U)
2729	break;
2730	if (u32Sep != i)
2731	{
2732	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2733	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2734	}
2735
2736	/* get the mapping details. */
2737	char szDesc[256];
2738	szDesc[0] = '\0';
2739	rc = SSMR3GetStrZ(pSSM, szDesc, sizeof(szDesc));
2740	if (RT_FAILURE(rc))
2741	return rc;
2742	RTGCPTR GCPtr;
2743	SSMR3GetGCPtr(pSSM, &GCPtr);
2744	RTGCPTR cPTs;
2745	rc = SSMR3GetGCUIntPtr(pSSM, &cPTs);
2746	if (RT_FAILURE(rc))
2747	return rc;
2748
2749	/* find matching range. */
2750	PPGMMAPPING pMapping;
2751	for (pMapping = pPGM->pMappingsR3; pMapping; pMapping = pMapping->pNextR3)
2752	if ( pMapping->cPTs == cPTs
2753	&& !strcmp(pMapping->pszDesc, szDesc))
2754	break;
2755	AssertLogRelMsgReturn(pMapping, ("Couldn't find mapping: cPTs=%#x szDesc=%s (GCPtr=%RGv)\n",
2756	cPTs, szDesc, GCPtr),
2757	VERR_SSM_LOAD_CONFIG_MISMATCH);
2758
2759	/* relocate it. */
2760	if (pMapping->GCPtr != GCPtr)
2761	{
2762	AssertMsg((GCPtr >> X86_PD_SHIFT << X86_PD_SHIFT) == GCPtr, ("GCPtr=%RGv\n", GCPtr));
2763	pgmR3MapRelocate(pVM, pMapping, pMapping->GCPtr, GCPtr);
2764	}
2765	else
2766	Log(("pgmR3Load: '%s' needed no relocation (%RGv)\n", szDesc, GCPtr));
2767	}
2768
2769	/*
2770	* Ram range flags and bits.
2771	*/
2772	i = 0;
2773	for (PPGMRAMRANGE pRam = pPGM->pRamRangesR3; pRam; pRam = pRam->pNextR3, i++)
2774	{
2775	/** @todo MMIO ranges may move (PCI reconfig), we currently assume they don't. */
2776
2777	/* Check the seqence number / separator. */
2778	rc = SSMR3GetU32(pSSM, &u32Sep);
2779	if (RT_FAILURE(rc))
2780	return rc;
2781	if (u32Sep == ~0U)
2782	break;
2783	if (u32Sep != i)
2784	{
2785	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2786	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2787	}
2788
2789	/* Get the range details. */
2790	RTGCPHYS GCPhys;
2791	SSMR3GetGCPhys(pSSM, &GCPhys);
2792	RTGCPHYS GCPhysLast;
2793	SSMR3GetGCPhys(pSSM, &GCPhysLast);
2794	RTGCPHYS cb;
2795	SSMR3GetGCPhys(pSSM, &cb);
2796	uint8_t fHaveBits;
2797	rc = SSMR3GetU8(pSSM, &fHaveBits);
2798	if (RT_FAILURE(rc))
2799	return rc;
2800	if (fHaveBits & ~1)
2801	{
2802	AssertMsgFailed(("u32Sep=%#x (last)\n", u32Sep));
2803	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
2804	}
2805	size_t cchDesc = 0;
2806	char szDesc[256];
2807	szDesc[0] = '\0';
2808	if (u32Version >= PGM_SAVED_STATE_VERSION_RR_DESC)
2809	{
2810	rc = SSMR3GetStrZ(pSSM, szDesc, sizeof(szDesc));
2811	if (RT_FAILURE(rc))
2812	return rc;
2813	/* Since we've modified the description strings in r45878, only compare
2814	them if the saved state is more recent. */
2815	if (u32Version != PGM_SAVED_STATE_VERSION_RR_DESC)
2816	cchDesc = strlen(szDesc);
2817	}
2818
2819	/*
2820	* Match it up with the current range.
2821	*
2822	* Note there is a hack for dealing with the high BIOS mapping
2823	* in the old saved state format, this means we might not have
2824	* a 1:1 match on success.
2825	*/
2826	if ( ( GCPhys != pRam->GCPhys
2827	\|\| GCPhysLast != pRam->GCPhysLast
2828	\|\| cb != pRam->cb
2829	\|\| ( cchDesc
2830	&& strcmp(szDesc, pRam->pszDesc)) )
2831	/* Hack for PDMDevHlpPhysReserve(pDevIns, 0xfff80000, 0x80000, "High ROM Region"); */
2832	&& ( u32Version != PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE
2833	\|\| GCPhys != UINT32_C(0xfff80000)
2834	\|\| GCPhysLast != UINT32_C(0xffffffff)
2835	\|\| pRam->GCPhysLast != GCPhysLast
2836	\|\| pRam->GCPhys < GCPhys
2837	\|\| !fHaveBits)
2838	)
2839	{
2840	LogRel(("Ram range: %RGp-%RGp %RGp bytes %s %s\n"
2841	"State : %RGp-%RGp %RGp bytes %s %s\n",
2842	pRam->GCPhys, pRam->GCPhysLast, pRam->cb, pRam->pvR3 ? "bits" : "nobits", pRam->pszDesc,
2843	GCPhys, GCPhysLast, cb, fHaveBits ? "bits" : "nobits", szDesc));
2844	/*
2845	* If we're loading a state for debugging purpose, don't make a fuss if
2846	* the MMIO and ROM stuff isn't 100% right, just skip the mismatches.
2847	*/
2848	if ( SSMR3HandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT
2849	\|\| GCPhys < 8 * _1M)
2850	AssertFailedReturn(VERR_SSM_LOAD_CONFIG_MISMATCH);
2851
2852	AssertMsgFailed(("debug skipping not implemented, sorry\n"));
2853	continue;
2854	}
2855
2856	uint32_t cPages = (GCPhysLast - GCPhys + 1) >> PAGE_SHIFT;
2857	if (u32Version >= PGM_SAVED_STATE_VERSION_RR_DESC)
2858	{
2859	/*
2860	* Load the pages one by one.
2861	*/
2862	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2863	{
2864	RTGCPHYS const GCPhysPage = ((RTGCPHYS)iPage << PAGE_SHIFT) + pRam->GCPhys;
2865	PPGMPAGE pPage = &pRam->aPages[iPage];
2866	uint8_t uType;
2867	rc = SSMR3GetU8(pSSM, &uType);
2868	AssertLogRelMsgRCReturn(rc, ("pPage=%R[pgmpage] iPage=%#x GCPhysPage=%#x %s\n", pPage, iPage, GCPhysPage, pRam->pszDesc), rc);
2869	if (uType == PGMPAGETYPE_ROM_SHADOW)
2870	rc = pgmR3LoadShadowedRomPage(pVM, pSSM, pPage, GCPhysPage, pRam);
2871	else
2872	rc = pgmR3LoadPage(pVM, pSSM, uType, pPage, GCPhysPage, pRam);
2873	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhysPage=%#x %s\n", rc, iPage, GCPhysPage, pRam->pszDesc), rc);
2874	}
2875	}
2876	else
2877	{
2878	/*
2879	* Old format.
2880	*/
2881	AssertLogRelReturn(!pVM->pgm.s.fRamPreAlloc, VERR_NOT_SUPPORTED); /* can't be detected. */
2882
2883	/* Of the page flags, pick up MMIO2 and ROM/RESERVED for the !fHaveBits case.
2884	The rest is generally irrelevant and wrong since the stuff have to match registrations. */
2885	uint32_t fFlags = 0;
2886	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2887	{
2888	uint16_t u16Flags;
2889	rc = SSMR3GetU16(pSSM, &u16Flags);
2890	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhys=%#x %s\n", rc, iPage, pRam->GCPhys, pRam->pszDesc), rc);
2891	fFlags \|= u16Flags;
2892	}
2893
2894	/* Load the bits */
2895	if ( !fHaveBits
2896	&& GCPhysLast < UINT32_C(0xe0000000))
2897	{
2898	/*
2899	* Dynamic chunks.
2900	*/
2901	const uint32_t cPagesInChunk = (110241024) >> PAGE_SHIFT;
2902	AssertLogRelMsgReturn(cPages % cPagesInChunk == 0,
2903	("cPages=%#x cPagesInChunk=%#x\n", cPages, cPagesInChunk, pRam->GCPhys, pRam->pszDesc),
2904	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2905
2906	for (uint32_t iPage = 0; iPage < cPages; /* incremented by inner loop */ )
2907	{
2908	uint8_t fPresent;
2909	rc = SSMR3GetU8(pSSM, &fPresent);
2910	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhys=%#x %s\n", rc, iPage, pRam->GCPhys, pRam->pszDesc), rc);
2911	AssertLogRelMsgReturn(fPresent == (uint8_t)true \|\| fPresent == (uint8_t)false,
2912	("fPresent=%#x iPage=%#x GCPhys=%#x %s\n", fPresent, iPage, pRam->GCPhys, pRam->pszDesc),
2913	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2914
2915	for (uint32_t iChunkPage = 0; iChunkPage < cPagesInChunk; iChunkPage++, iPage++)
2916	{
2917	RTGCPHYS const GCPhysPage = ((RTGCPHYS)iPage << PAGE_SHIFT) + pRam->GCPhys;
2918	PPGMPAGE pPage = &pRam->aPages[iPage];
2919	if (fPresent)
2920	{
2921	if (PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_MMIO)
2922	rc = pgmR3LoadPageToDevNull(pSSM);
2923	else
2924	rc = pgmR3LoadPageBits(pVM, pSSM, PGMPAGETYPE_INVALID, pPage, GCPhysPage, pRam);
2925	}
2926	else
2927	rc = pgmR3LoadPageZero(pVM, PGMPAGETYPE_INVALID, pPage, GCPhysPage, pRam);
2928	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhysPage=%#x %s\n", rc, iPage, GCPhysPage, pRam->pszDesc), rc);
2929	}
2930	}
2931	}
2932	else if (pRam->pvR3)
2933	{
2934	/*
2935	* MMIO2.
2936	*/
2937	AssertLogRelMsgReturn((fFlags & 0x0f) == RT_BIT(3) /MM_RAM_FLAGS_MMIO2/,
2938	("fFlags=%#x GCPhys=%#x %s\n", fFlags, pRam->GCPhys, pRam->pszDesc),
2939	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2940	AssertLogRelMsgReturn(pRam->pvR3,
2941	("GCPhys=%#x %s\n", pRam->GCPhys, pRam->pszDesc),
2942	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2943
2944	rc = SSMR3GetMem(pSSM, pRam->pvR3, pRam->cb);
2945	AssertLogRelMsgRCReturn(rc, ("GCPhys=%#x %s\n", pRam->GCPhys, pRam->pszDesc), rc);
2946	}
2947	else if (GCPhysLast < UINT32_C(0xfff80000))
2948	{
2949	/*
2950	* PCI MMIO, no pages saved.
2951	*/
2952	}
2953	else
2954	{
2955	/*
2956	* Load the 0xfff80000..0xffffffff BIOS range.
2957	* It starts with X reserved pages that we have to skip over since
2958	* the RAMRANGE create by the new code won't include those.
2959	*/
2960	AssertLogRelMsgReturn( !(fFlags & RT_BIT(3) /MM_RAM_FLAGS_MMIO2/)
2961	&& (fFlags & RT_BIT(0) /MM_RAM_FLAGS_RESERVED/),
2962	("fFlags=%#x GCPhys=%#x %s\n", fFlags, pRam->GCPhys, pRam->pszDesc),
2963	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2964	AssertLogRelMsgReturn(GCPhys == UINT32_C(0xfff80000),
2965	("GCPhys=%RGp pRamRange{GCPhys=%#x %s}\n", GCPhys, pRam->GCPhys, pRam->pszDesc),
2966	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2967
2968	/* Skip wasted reserved pages before the ROM. */
2969	while (GCPhys < pRam->GCPhys)
2970	{
2971	rc = pgmR3LoadPageToDevNull(pSSM);
2972	GCPhys += PAGE_SIZE;
2973	}
2974
2975	/* Load the bios pages. */
2976	cPages = pRam->cb >> PAGE_SHIFT;
2977	for (uint32_t iPage = 0; iPage < cPages; iPage++)
2978	{
2979	RTGCPHYS const GCPhysPage = ((RTGCPHYS)iPage << PAGE_SHIFT) + pRam->GCPhys;
2980	PPGMPAGE pPage = &pRam->aPages[iPage];
2981
2982	AssertLogRelMsgReturn(PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_ROM,
2983	("GCPhys=%RGp pPage=%R[pgmpage]\n", GCPhys, GCPhys),
2984	VERR_SSM_DATA_UNIT_FORMAT_CHANGED);
2985	rc = pgmR3LoadPageBits(pVM, pSSM, PGMPAGETYPE_ROM, pPage, GCPhysPage, pRam);
2986	AssertLogRelMsgRCReturn(rc, ("rc=%Rrc iPage=%#x GCPhys=%#x %s\n", rc, iPage, pRam->GCPhys, pRam->pszDesc), rc);
2987	}
2988	}
2989	}
2990	}
2991
2992	return rc;
2993	}
2994
2995
2996	/**
2997	* Execute state load operation.
2998	*
2999	* @returns VBox status code.
3000	* @param pVM VM Handle.
3001	* @param pSSM SSM operation handle.
3002	* @param u32Version Data layout version.
3003	*/
3004	static DECLCALLBACK(int) pgmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
3005	{
3006	int rc;
3007	PPGM pPGM = &pVM->pgm.s;
3008
3009	/*
3010	* Validate version.
3011	*/
3012	if ( u32Version != PGM_SAVED_STATE_VERSION
3013	&& u32Version != PGM_SAVED_STATE_VERSION_2_2_2
3014	&& u32Version != PGM_SAVED_STATE_VERSION_RR_DESC
3015	&& u32Version != PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE)
3016	{
3017	AssertMsgFailed(("pgmR3Load: Invalid version u32Version=%d (current %d)!\n", u32Version, PGM_SAVED_STATE_VERSION));
3018	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
3019	}
3020
3021	/*
3022	* Call the reset function to make sure all the memory is cleared.
3023	*/
3024	PGMR3Reset(pVM);
3025
3026	/*
3027	* Do the loading while owning the lock because a bunch of the functions
3028	* we're using requires this.
3029	*/
3030	pgmLock(pVM);
3031	rc = pgmR3LoadLocked(pVM, pSSM, u32Version);
3032	pgmUnlock(pVM);
3033	if (RT_SUCCESS(rc))
3034	{
3035	/*
3036	* We require a full resync now.
3037	*/
3038	for (unsigned i=0;i<pVM->cCPUs;i++)
3039	{
3040	PVMCPU pVCpu = &pVM->aCpus[i];
3041	VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
3042	VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
3043
3044	pVCpu->pgm.s.fSyncFlags \|= PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL;
3045	}
3046
3047	pPGM->fPhysCacheFlushPending = true;
3048	pgmR3HandlerPhysicalUpdateAll(pVM);
3049
3050	for (unsigned i=0;i<pVM->cCPUs;i++)
3051	{
3052	PVMCPU pVCpu = &pVM->aCpus[i];
3053
3054	/*
3055	* Change the paging mode.
3056	*/
3057	rc = PGMR3ChangeMode(pVM, pVCpu, pVCpu->pgm.s.enmGuestMode);
3058
3059	/* Restore pVM->pgm.s.GCPhysCR3. */
3060	Assert(pVCpu->pgm.s.GCPhysCR3 == NIL_RTGCPHYS);
3061	RTGCPHYS GCPhysCR3 = CPUMGetGuestCR3(pVCpu);
3062	if ( pVCpu->pgm.s.enmGuestMode == PGMMODE_PAE
3063	\|\| pVCpu->pgm.s.enmGuestMode == PGMMODE_PAE_NX
3064	\|\| pVCpu->pgm.s.enmGuestMode == PGMMODE_AMD64
3065	\|\| pVCpu->pgm.s.enmGuestMode == PGMMODE_AMD64_NX)
3066	GCPhysCR3 = (GCPhysCR3 & X86_CR3_PAE_PAGE_MASK);
3067	else
3068	GCPhysCR3 = (GCPhysCR3 & X86_CR3_PAGE_MASK);
3069	pVCpu->pgm.s.GCPhysCR3 = GCPhysCR3;
3070	}
3071	}
3072
3073	return rc;
3074	}
3075
3076
3077	/**
3078	* Show paging mode.
3079	*
3080	* @param pVM VM Handle.
3081	* @param pHlp The info helpers.
3082	* @param pszArgs "all" (default), "guest", "shadow" or "host".
3083	*/
3084	static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
3085	{
3086	/* digest argument. */
3087	bool fGuest, fShadow, fHost;
3088	if (pszArgs)
3089	pszArgs = RTStrStripL(pszArgs);
3090	if (!pszArgs \|\| !*pszArgs \|\| strstr(pszArgs, "all"))
3091	fShadow = fHost = fGuest = true;
3092	else
3093	{
3094	fShadow = fHost = fGuest = false;
3095	if (strstr(pszArgs, "guest"))
3096	fGuest = true;
3097	if (strstr(pszArgs, "shadow"))
3098	fShadow = true;
3099	if (strstr(pszArgs, "host"))
3100	fHost = true;
3101	}
3102
3103	/** @todo SMP support! */
3104	/* print info. */
3105	if (fGuest)
3106	pHlp->pfnPrintf(pHlp, "Guest paging mode: %s, changed %RU64 times, A20 %s\n",
3107	PGMGetModeName(pVM->aCpus[0].pgm.s.enmGuestMode), pVM->aCpus[0].pgm.s.cGuestModeChanges.c,
3108	pVM->aCpus[0].pgm.s.fA20Enabled ? "enabled" : "disabled");
3109	if (fShadow)
3110	pHlp->pfnPrintf(pHlp, "Shadow paging mode: %s\n", PGMGetModeName(pVM->aCpus[0].pgm.s.enmShadowMode));
3111	if (fHost)
3112	{
3113	const char *psz;
3114	switch (pVM->pgm.s.enmHostMode)
3115	{
3116	case SUPPAGINGMODE_INVALID: psz = "invalid"; break;
3117	case SUPPAGINGMODE_32_BIT: psz = "32-bit"; break;
3118	case SUPPAGINGMODE_32_BIT_GLOBAL: psz = "32-bit+G"; break;
3119	case SUPPAGINGMODE_PAE: psz = "PAE"; break;
3120	case SUPPAGINGMODE_PAE_GLOBAL: psz = "PAE+G"; break;
3121	case SUPPAGINGMODE_PAE_NX: psz = "PAE+NX"; break;
3122	case SUPPAGINGMODE_PAE_GLOBAL_NX: psz = "PAE+G+NX"; break;
3123	case SUPPAGINGMODE_AMD64: psz = "AMD64"; break;
3124	case SUPPAGINGMODE_AMD64_GLOBAL: psz = "AMD64+G"; break;
3125	case SUPPAGINGMODE_AMD64_NX: psz = "AMD64+NX"; break;
3126	case SUPPAGINGMODE_AMD64_GLOBAL_NX: psz = "AMD64+G+NX"; break;
3127	default: psz = "unknown"; break;
3128	}
3129	pHlp->pfnPrintf(pHlp, "Host paging mode: %s\n", psz);
3130	}
3131	}
3132
3133
3134	/**
3135	* Dump registered MMIO ranges to the log.
3136	*
3137	* @param pVM VM Handle.
3138	* @param pHlp The info helpers.
3139	* @param pszArgs Arguments, ignored.
3140	*/
3141	static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
3142	{
3143	NOREF(pszArgs);
3144	pHlp->pfnPrintf(pHlp,
3145	"RAM ranges (pVM=%p)\n"
3146	"%.s %.s\n",
3147	pVM,
3148	sizeof(RTGCPHYS) * 4 + 1, "GC Phys Range ",
3149	sizeof(RTHCPTR) * 2, "pvHC ");
3150
3151	for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
3152	pHlp->pfnPrintf(pHlp,
3153	"%RGp-%RGp %RHv %s\n",
3154	pCur->GCPhys,
3155	pCur->GCPhysLast,
3156	pCur->pvR3,
3157	pCur->pszDesc);
3158	}
3159
3160	/**
3161	* Dump the page directory to the log.
3162	*
3163	* @param pVM VM Handle.
3164	* @param pHlp The info helpers.
3165	* @param pszArgs Arguments, ignored.
3166	*/
3167	static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
3168	{
3169	/** @todo SMP support!! */
3170	PVMCPU pVCpu = &pVM->aCpus[0];
3171
3172	/** @todo fix this! Convert the PGMR3DumpHierarchyHC functions to do guest stuff. */
3173	/* Big pages supported? */
3174	const bool fPSE = !!(CPUMGetGuestCR4(pVCpu) & X86_CR4_PSE);
3175
3176	/* Global pages supported? */
3177	const bool fPGE = !!(CPUMGetGuestCR4(pVCpu) & X86_CR4_PGE);
3178
3179	NOREF(pszArgs);
3180
3181	/*
3182	* Get page directory addresses.
3183	*/
3184	PX86PD pPDSrc = pgmGstGet32bitPDPtr(&pVCpu->pgm.s);
3185	Assert(pPDSrc);
3186	Assert(PGMPhysGCPhys2R3PtrAssert(pVM, (RTGCPHYS)(CPUMGetGuestCR3(pVCpu) & X86_CR3_PAGE_MASK), sizeof(*pPDSrc)) == pPDSrc);
3187
3188	/*
3189	* Iterate the page directory.
3190	*/
3191	for (unsigned iPD = 0; iPD < RT_ELEMENTS(pPDSrc->a); iPD++)
3192	{
3193	X86PDE PdeSrc = pPDSrc->a[iPD];
3194	if (PdeSrc.n.u1Present)
3195	{
3196	if (PdeSrc.b.u1Size && fPSE)
3197	pHlp->pfnPrintf(pHlp,
3198	"%04X - %RGp P=%d U=%d RW=%d G=%d - BIG\n",
3199	iPD,
3200	pgmGstGet4MBPhysPage(&pVM->pgm.s, PdeSrc),
3201	PdeSrc.b.u1Present, PdeSrc.b.u1User, PdeSrc.b.u1Write, PdeSrc.b.u1Global && fPGE);
3202	else
3203	pHlp->pfnPrintf(pHlp,
3204	"%04X - %RGp P=%d U=%d RW=%d [G=%d]\n",
3205	iPD,
3206	(RTGCPHYS)(PdeSrc.u & X86_PDE_PG_MASK),
3207	PdeSrc.n.u1Present, PdeSrc.n.u1User, PdeSrc.n.u1Write, PdeSrc.b.u1Global && fPGE);
3208	}
3209	}
3210	}
3211
3212
3213	/**
3214	* Serivce a VMMCALLHOST_PGM_LOCK call.
3215	*
3216	* @returns VBox status code.
3217	* @param pVM The VM handle.
3218	*/
3219	VMMR3DECL(int) PGMR3LockCall(PVM pVM)
3220	{
3221	int rc = PDMR3CritSectEnterEx(&pVM->pgm.s.CritSect, true /* fHostCall */);
3222	AssertRC(rc);
3223	return rc;
3224	}
3225
3226
3227	/**
3228	* Converts a PGMMODE value to a PGM_TYPE_* \#define.
3229	*
3230	* @returns PGM_TYPE_*.
3231	* @param pgmMode The mode value to convert.
3232	*/
3233	DECLINLINE(unsigned) pgmModeToType(PGMMODE pgmMode)
3234	{
3235	switch (pgmMode)
3236	{
3237	case PGMMODE_REAL: return PGM_TYPE_REAL;
3238	case PGMMODE_PROTECTED: return PGM_TYPE_PROT;
3239	case PGMMODE_32_BIT: return PGM_TYPE_32BIT;
3240	case PGMMODE_PAE:
3241	case PGMMODE_PAE_NX: return PGM_TYPE_PAE;
3242	case PGMMODE_AMD64:
3243	case PGMMODE_AMD64_NX: return PGM_TYPE_AMD64;
3244	case PGMMODE_NESTED: return PGM_TYPE_NESTED;
3245	case PGMMODE_EPT: return PGM_TYPE_EPT;
3246	default:
3247	AssertFatalMsgFailed(("pgmMode=%d\n", pgmMode));
3248	}
3249	}
3250
3251
3252	/**
3253	* Gets the index into the paging mode data array of a SHW+GST mode.
3254	*
3255	* @returns PGM::paPagingData index.
3256	* @param uShwType The shadow paging mode type.
3257	* @param uGstType The guest paging mode type.
3258	*/
3259	DECLINLINE(unsigned) pgmModeDataIndex(unsigned uShwType, unsigned uGstType)
3260	{
3261	Assert(uShwType >= PGM_TYPE_32BIT && uShwType <= PGM_TYPE_MAX);
3262	Assert(uGstType >= PGM_TYPE_REAL && uGstType <= PGM_TYPE_AMD64);
3263	return (uShwType - PGM_TYPE_32BIT) * (PGM_TYPE_AMD64 - PGM_TYPE_REAL + 1)
3264	+ (uGstType - PGM_TYPE_REAL);
3265	}
3266
3267
3268	/**
3269	* Gets the index into the paging mode data array of a SHW+GST mode.
3270	*
3271	* @returns PGM::paPagingData index.
3272	* @param enmShw The shadow paging mode.
3273	* @param enmGst The guest paging mode.
3274	*/
3275	DECLINLINE(unsigned) pgmModeDataIndexByMode(PGMMODE enmShw, PGMMODE enmGst)
3276	{
3277	Assert(enmShw >= PGMMODE_32_BIT && enmShw <= PGMMODE_MAX);
3278	Assert(enmGst > PGMMODE_INVALID && enmGst < PGMMODE_MAX);
3279	return pgmModeDataIndex(pgmModeToType(enmShw), pgmModeToType(enmGst));
3280	}
3281
3282
3283	/**
3284	* Calculates the max data index.
3285	* @returns The number of entries in the paging data array.
3286	*/
3287	DECLINLINE(unsigned) pgmModeDataMaxIndex(void)
3288	{
3289	return pgmModeDataIndex(PGM_TYPE_MAX, PGM_TYPE_AMD64) + 1;
3290	}
3291
3292
3293	/**
3294	* Initializes the paging mode data kept in PGM::paModeData.
3295	*
3296	* @param pVM The VM handle.
3297	* @param fResolveGCAndR0 Indicate whether or not GC and Ring-0 symbols can be resolved now.
3298	* This is used early in the init process to avoid trouble with PDM
3299	* not being initialized yet.
3300	*/
3301	static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0)
3302	{
3303	PPGMMODEDATA pModeData;
3304	int rc;
3305
3306	/*
3307	* Allocate the array on the first call.
3308	*/
3309	if (!pVM->pgm.s.paModeData)
3310	{
3311	pVM->pgm.s.paModeData = (PPGMMODEDATA)MMR3HeapAllocZ(pVM, MM_TAG_PGM, sizeof(PGMMODEDATA) * pgmModeDataMaxIndex());
3312	AssertReturn(pVM->pgm.s.paModeData, VERR_NO_MEMORY);
3313	}
3314
3315	/*
3316	* Initialize the array entries.
3317	*/
3318	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_REAL)];
3319	pModeData->uShwType = PGM_TYPE_32BIT;
3320	pModeData->uGstType = PGM_TYPE_REAL;
3321	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3322	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3323	rc = PGM_BTH_NAME_32BIT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3324
3325	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGMMODE_PROTECTED)];
3326	pModeData->uShwType = PGM_TYPE_32BIT;
3327	pModeData->uGstType = PGM_TYPE_PROT;
3328	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3329	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3330	rc = PGM_BTH_NAME_32BIT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3331
3332	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_32BIT)];
3333	pModeData->uShwType = PGM_TYPE_32BIT;
3334	pModeData->uGstType = PGM_TYPE_32BIT;
3335	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3336	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3337	rc = PGM_BTH_NAME_32BIT_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3338
3339	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_REAL)];
3340	pModeData->uShwType = PGM_TYPE_PAE;
3341	pModeData->uGstType = PGM_TYPE_REAL;
3342	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3343	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3344	rc = PGM_BTH_NAME_PAE_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3345
3346	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PROT)];
3347	pModeData->uShwType = PGM_TYPE_PAE;
3348	pModeData->uGstType = PGM_TYPE_PROT;
3349	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3350	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3351	rc = PGM_BTH_NAME_PAE_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3352
3353	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_32BIT)];
3354	pModeData->uShwType = PGM_TYPE_PAE;
3355	pModeData->uGstType = PGM_TYPE_32BIT;
3356	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3357	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3358	rc = PGM_BTH_NAME_PAE_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3359
3360	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PAE)];
3361	pModeData->uShwType = PGM_TYPE_PAE;
3362	pModeData->uGstType = PGM_TYPE_PAE;
3363	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3364	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3365	rc = PGM_BTH_NAME_PAE_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3366
3367	#ifdef VBOX_WITH_64_BITS_GUESTS
3368	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_AMD64)];
3369	pModeData->uShwType = PGM_TYPE_AMD64;
3370	pModeData->uGstType = PGM_TYPE_AMD64;
3371	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3372	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3373	rc = PGM_BTH_NAME_AMD64_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3374	#endif
3375
3376	/* The nested paging mode. */
3377	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_REAL)];
3378	pModeData->uShwType = PGM_TYPE_NESTED;
3379	pModeData->uGstType = PGM_TYPE_REAL;
3380	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3381	rc = PGM_BTH_NAME_NESTED_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3382
3383	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGMMODE_PROTECTED)];
3384	pModeData->uShwType = PGM_TYPE_NESTED;
3385	pModeData->uGstType = PGM_TYPE_PROT;
3386	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3387	rc = PGM_BTH_NAME_NESTED_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3388
3389	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_32BIT)];
3390	pModeData->uShwType = PGM_TYPE_NESTED;
3391	pModeData->uGstType = PGM_TYPE_32BIT;
3392	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3393	rc = PGM_BTH_NAME_NESTED_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3394
3395	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_PAE)];
3396	pModeData->uShwType = PGM_TYPE_NESTED;
3397	pModeData->uGstType = PGM_TYPE_PAE;
3398	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3399	rc = PGM_BTH_NAME_NESTED_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3400
3401	#ifdef VBOX_WITH_64_BITS_GUESTS
3402	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
3403	pModeData->uShwType = PGM_TYPE_NESTED;
3404	pModeData->uGstType = PGM_TYPE_AMD64;
3405	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3406	rc = PGM_BTH_NAME_NESTED_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3407	#endif
3408
3409	/* The shadow part of the nested callback mode depends on the host paging mode (AMD-V only). */
3410	switch (pVM->pgm.s.enmHostMode)
3411	{
3412	#if HC_ARCH_BITS == 32
3413	case SUPPAGINGMODE_32_BIT:
3414	case SUPPAGINGMODE_32_BIT_GLOBAL:
3415	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
3416	{
3417	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
3418	rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3419	}
3420	# ifdef VBOX_WITH_64_BITS_GUESTS
3421	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
3422	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3423	# endif
3424	break;
3425
3426	case SUPPAGINGMODE_PAE:
3427	case SUPPAGINGMODE_PAE_NX:
3428	case SUPPAGINGMODE_PAE_GLOBAL:
3429	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3430	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
3431	{
3432	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
3433	rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3434	}
3435	# ifdef VBOX_WITH_64_BITS_GUESTS
3436	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
3437	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3438	# endif
3439	break;
3440	#endif /* HC_ARCH_BITS == 32 */
3441
3442	#if HC_ARCH_BITS == 64 \|\| defined(RT_OS_DARWIN)
3443	case SUPPAGINGMODE_AMD64:
3444	case SUPPAGINGMODE_AMD64_GLOBAL:
3445	case SUPPAGINGMODE_AMD64_NX:
3446	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3447	# ifdef VBOX_WITH_64_BITS_GUESTS
3448	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_AMD64; i++)
3449	# else
3450	for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
3451	# endif
3452	{
3453	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
3454	rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3455	}
3456	break;
3457	#endif /* HC_ARCH_BITS == 64 \|\| RT_OS_DARWIN */
3458
3459	default:
3460	AssertFailed();
3461	break;
3462	}
3463
3464	/* Extended paging (EPT) / Intel VT-x */
3465	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_REAL)];
3466	pModeData->uShwType = PGM_TYPE_EPT;
3467	pModeData->uGstType = PGM_TYPE_REAL;
3468	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3469	rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3470	rc = PGM_BTH_NAME_EPT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3471
3472	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_PROT)];
3473	pModeData->uShwType = PGM_TYPE_EPT;
3474	pModeData->uGstType = PGM_TYPE_PROT;
3475	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3476	rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3477	rc = PGM_BTH_NAME_EPT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3478
3479	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_32BIT)];
3480	pModeData->uShwType = PGM_TYPE_EPT;
3481	pModeData->uGstType = PGM_TYPE_32BIT;
3482	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3483	rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3484	rc = PGM_BTH_NAME_EPT_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3485
3486	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_PAE)];
3487	pModeData->uShwType = PGM_TYPE_EPT;
3488	pModeData->uGstType = PGM_TYPE_PAE;
3489	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3490	rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3491	rc = PGM_BTH_NAME_EPT_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3492
3493	#ifdef VBOX_WITH_64_BITS_GUESTS
3494	pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_AMD64)];
3495	pModeData->uShwType = PGM_TYPE_EPT;
3496	pModeData->uGstType = PGM_TYPE_AMD64;
3497	rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3498	rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3499	rc = PGM_BTH_NAME_EPT_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
3500	#endif
3501	return VINF_SUCCESS;
3502	}
3503
3504
3505	/**
3506	* Switch to different (or relocated in the relocate case) mode data.
3507	*
3508	* @param pVM The VM handle.
3509	* @param pVCpu The VMCPU to operate on.
3510	* @param enmShw The the shadow paging mode.
3511	* @param enmGst The the guest paging mode.
3512	*/
3513	static void pgmR3ModeDataSwitch(PVM pVM, PVMCPU pVCpu, PGMMODE enmShw, PGMMODE enmGst)
3514	{
3515	PPGMMODEDATA pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndexByMode(enmShw, enmGst)];
3516
3517	Assert(pModeData->uGstType == pgmModeToType(enmGst));
3518	Assert(pModeData->uShwType == pgmModeToType(enmShw));
3519
3520	/* shadow */
3521	pVCpu->pgm.s.pfnR3ShwRelocate = pModeData->pfnR3ShwRelocate;
3522	pVCpu->pgm.s.pfnR3ShwExit = pModeData->pfnR3ShwExit;
3523	pVCpu->pgm.s.pfnR3ShwGetPage = pModeData->pfnR3ShwGetPage;
3524	Assert(pVCpu->pgm.s.pfnR3ShwGetPage);
3525	pVCpu->pgm.s.pfnR3ShwModifyPage = pModeData->pfnR3ShwModifyPage;
3526
3527	pVCpu->pgm.s.pfnRCShwGetPage = pModeData->pfnRCShwGetPage;
3528	pVCpu->pgm.s.pfnRCShwModifyPage = pModeData->pfnRCShwModifyPage;
3529
3530	pVCpu->pgm.s.pfnR0ShwGetPage = pModeData->pfnR0ShwGetPage;
3531	pVCpu->pgm.s.pfnR0ShwModifyPage = pModeData->pfnR0ShwModifyPage;
3532
3533
3534	/* guest */
3535	pVCpu->pgm.s.pfnR3GstRelocate = pModeData->pfnR3GstRelocate;
3536	pVCpu->pgm.s.pfnR3GstExit = pModeData->pfnR3GstExit;
3537	pVCpu->pgm.s.pfnR3GstGetPage = pModeData->pfnR3GstGetPage;
3538	Assert(pVCpu->pgm.s.pfnR3GstGetPage);
3539	pVCpu->pgm.s.pfnR3GstModifyPage = pModeData->pfnR3GstModifyPage;
3540	pVCpu->pgm.s.pfnR3GstGetPDE = pModeData->pfnR3GstGetPDE;
3541	pVCpu->pgm.s.pfnRCGstGetPage = pModeData->pfnRCGstGetPage;
3542	pVCpu->pgm.s.pfnRCGstModifyPage = pModeData->pfnRCGstModifyPage;
3543	pVCpu->pgm.s.pfnRCGstGetPDE = pModeData->pfnRCGstGetPDE;
3544	pVCpu->pgm.s.pfnR0GstGetPage = pModeData->pfnR0GstGetPage;
3545	pVCpu->pgm.s.pfnR0GstModifyPage = pModeData->pfnR0GstModifyPage;
3546	pVCpu->pgm.s.pfnR0GstGetPDE = pModeData->pfnR0GstGetPDE;
3547
3548	/* both */
3549	pVCpu->pgm.s.pfnR3BthRelocate = pModeData->pfnR3BthRelocate;
3550	pVCpu->pgm.s.pfnR3BthInvalidatePage = pModeData->pfnR3BthInvalidatePage;
3551	pVCpu->pgm.s.pfnR3BthSyncCR3 = pModeData->pfnR3BthSyncCR3;
3552	Assert(pVCpu->pgm.s.pfnR3BthSyncCR3);
3553	pVCpu->pgm.s.pfnR3BthSyncPage = pModeData->pfnR3BthSyncPage;
3554	pVCpu->pgm.s.pfnR3BthPrefetchPage = pModeData->pfnR3BthPrefetchPage;
3555	pVCpu->pgm.s.pfnR3BthVerifyAccessSyncPage = pModeData->pfnR3BthVerifyAccessSyncPage;
3556	#ifdef VBOX_STRICT
3557	pVCpu->pgm.s.pfnR3BthAssertCR3 = pModeData->pfnR3BthAssertCR3;
3558	#endif
3559	pVCpu->pgm.s.pfnR3BthMapCR3 = pModeData->pfnR3BthMapCR3;
3560	pVCpu->pgm.s.pfnR3BthUnmapCR3 = pModeData->pfnR3BthUnmapCR3;
3561
3562	pVCpu->pgm.s.pfnRCBthTrap0eHandler = pModeData->pfnRCBthTrap0eHandler;
3563	pVCpu->pgm.s.pfnRCBthInvalidatePage = pModeData->pfnRCBthInvalidatePage;
3564	pVCpu->pgm.s.pfnRCBthSyncCR3 = pModeData->pfnRCBthSyncCR3;
3565	pVCpu->pgm.s.pfnRCBthSyncPage = pModeData->pfnRCBthSyncPage;
3566	pVCpu->pgm.s.pfnRCBthPrefetchPage = pModeData->pfnRCBthPrefetchPage;
3567	pVCpu->pgm.s.pfnRCBthVerifyAccessSyncPage = pModeData->pfnRCBthVerifyAccessSyncPage;
3568	#ifdef VBOX_STRICT
3569	pVCpu->pgm.s.pfnRCBthAssertCR3 = pModeData->pfnRCBthAssertCR3;
3570	#endif
3571	pVCpu->pgm.s.pfnRCBthMapCR3 = pModeData->pfnRCBthMapCR3;
3572	pVCpu->pgm.s.pfnRCBthUnmapCR3 = pModeData->pfnRCBthUnmapCR3;
3573
3574	pVCpu->pgm.s.pfnR0BthTrap0eHandler = pModeData->pfnR0BthTrap0eHandler;
3575	pVCpu->pgm.s.pfnR0BthInvalidatePage = pModeData->pfnR0BthInvalidatePage;
3576	pVCpu->pgm.s.pfnR0BthSyncCR3 = pModeData->pfnR0BthSyncCR3;
3577	pVCpu->pgm.s.pfnR0BthSyncPage = pModeData->pfnR0BthSyncPage;
3578	pVCpu->pgm.s.pfnR0BthPrefetchPage = pModeData->pfnR0BthPrefetchPage;
3579	pVCpu->pgm.s.pfnR0BthVerifyAccessSyncPage = pModeData->pfnR0BthVerifyAccessSyncPage;
3580	#ifdef VBOX_STRICT
3581	pVCpu->pgm.s.pfnR0BthAssertCR3 = pModeData->pfnR0BthAssertCR3;
3582	#endif
3583	pVCpu->pgm.s.pfnR0BthMapCR3 = pModeData->pfnR0BthMapCR3;
3584	pVCpu->pgm.s.pfnR0BthUnmapCR3 = pModeData->pfnR0BthUnmapCR3;
3585	}
3586
3587
3588	/**
3589	* Calculates the shadow paging mode.
3590	*
3591	* @returns The shadow paging mode.
3592	* @param pVM VM handle.
3593	* @param enmGuestMode The guest mode.
3594	* @param enmHostMode The host mode.
3595	* @param enmShadowMode The current shadow mode.
3596	* @param penmSwitcher Where to store the switcher to use.
3597	* VMMSWITCHER_INVALID means no change.
3598	*/
3599	static PGMMODE pgmR3CalcShadowMode(PVM pVM, PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher)
3600	{
3601	VMMSWITCHER enmSwitcher = VMMSWITCHER_INVALID;
3602	switch (enmGuestMode)
3603	{
3604	/*
3605	* When switching to real or protected mode we don't change
3606	* anything since it's likely that we'll switch back pretty soon.
3607	*
3608	* During pgmR3InitPaging we'll end up here with PGMMODE_INVALID
3609	* and is supposed to determine which shadow paging and switcher to
3610	* use during init.
3611	*/
3612	case PGMMODE_REAL:
3613	case PGMMODE_PROTECTED:
3614	if ( enmShadowMode != PGMMODE_INVALID
3615	&& !HWACCMIsEnabled(pVM) /* always switch in hwaccm mode! */)
3616	break; /* (no change) */
3617
3618	switch (enmHostMode)
3619	{
3620	case SUPPAGINGMODE_32_BIT:
3621	case SUPPAGINGMODE_32_BIT_GLOBAL:
3622	enmShadowMode = PGMMODE_32_BIT;
3623	enmSwitcher = VMMSWITCHER_32_TO_32;
3624	break;
3625
3626	case SUPPAGINGMODE_PAE:
3627	case SUPPAGINGMODE_PAE_NX:
3628	case SUPPAGINGMODE_PAE_GLOBAL:
3629	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3630	enmShadowMode = PGMMODE_PAE;
3631	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
3632	#ifdef DEBUG_bird
3633	if (RTEnvExist("VBOX_32BIT"))
3634	{
3635	enmShadowMode = PGMMODE_32_BIT;
3636	enmSwitcher = VMMSWITCHER_PAE_TO_32;
3637	}
3638	#endif
3639	break;
3640
3641	case SUPPAGINGMODE_AMD64:
3642	case SUPPAGINGMODE_AMD64_GLOBAL:
3643	case SUPPAGINGMODE_AMD64_NX:
3644	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3645	enmShadowMode = PGMMODE_PAE;
3646	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
3647	#ifdef DEBUG_bird
3648	if (RTEnvExist("VBOX_32BIT"))
3649	{
3650	enmShadowMode = PGMMODE_32_BIT;
3651	enmSwitcher = VMMSWITCHER_AMD64_TO_32;
3652	}
3653	#endif
3654	break;
3655
3656	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3657	}
3658	break;
3659
3660	case PGMMODE_32_BIT:
3661	switch (enmHostMode)
3662	{
3663	case SUPPAGINGMODE_32_BIT:
3664	case SUPPAGINGMODE_32_BIT_GLOBAL:
3665	enmShadowMode = PGMMODE_32_BIT;
3666	enmSwitcher = VMMSWITCHER_32_TO_32;
3667	break;
3668
3669	case SUPPAGINGMODE_PAE:
3670	case SUPPAGINGMODE_PAE_NX:
3671	case SUPPAGINGMODE_PAE_GLOBAL:
3672	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3673	enmShadowMode = PGMMODE_PAE;
3674	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
3675	#ifdef DEBUG_bird
3676	if (RTEnvExist("VBOX_32BIT"))
3677	{
3678	enmShadowMode = PGMMODE_32_BIT;
3679	enmSwitcher = VMMSWITCHER_PAE_TO_32;
3680	}
3681	#endif
3682	break;
3683
3684	case SUPPAGINGMODE_AMD64:
3685	case SUPPAGINGMODE_AMD64_GLOBAL:
3686	case SUPPAGINGMODE_AMD64_NX:
3687	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3688	enmShadowMode = PGMMODE_PAE;
3689	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
3690	#ifdef DEBUG_bird
3691	if (RTEnvExist("VBOX_32BIT"))
3692	{
3693	enmShadowMode = PGMMODE_32_BIT;
3694	enmSwitcher = VMMSWITCHER_AMD64_TO_32;
3695	}
3696	#endif
3697	break;
3698
3699	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3700	}
3701	break;
3702
3703	case PGMMODE_PAE:
3704	case PGMMODE_PAE_NX: /** @todo This might require more switchers and guest+both modes. */
3705	switch (enmHostMode)
3706	{
3707	case SUPPAGINGMODE_32_BIT:
3708	case SUPPAGINGMODE_32_BIT_GLOBAL:
3709	enmShadowMode = PGMMODE_PAE;
3710	enmSwitcher = VMMSWITCHER_32_TO_PAE;
3711	break;
3712
3713	case SUPPAGINGMODE_PAE:
3714	case SUPPAGINGMODE_PAE_NX:
3715	case SUPPAGINGMODE_PAE_GLOBAL:
3716	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3717	enmShadowMode = PGMMODE_PAE;
3718	enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
3719	break;
3720
3721	case SUPPAGINGMODE_AMD64:
3722	case SUPPAGINGMODE_AMD64_GLOBAL:
3723	case SUPPAGINGMODE_AMD64_NX:
3724	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3725	enmShadowMode = PGMMODE_PAE;
3726	enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
3727	break;
3728
3729	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3730	}
3731	break;
3732
3733	case PGMMODE_AMD64:
3734	case PGMMODE_AMD64_NX:
3735	switch (enmHostMode)
3736	{
3737	case SUPPAGINGMODE_32_BIT:
3738	case SUPPAGINGMODE_32_BIT_GLOBAL:
3739	enmShadowMode = PGMMODE_AMD64;
3740	enmSwitcher = VMMSWITCHER_32_TO_AMD64;
3741	break;
3742
3743	case SUPPAGINGMODE_PAE:
3744	case SUPPAGINGMODE_PAE_NX:
3745	case SUPPAGINGMODE_PAE_GLOBAL:
3746	case SUPPAGINGMODE_PAE_GLOBAL_NX:
3747	enmShadowMode = PGMMODE_AMD64;
3748	enmSwitcher = VMMSWITCHER_PAE_TO_AMD64;
3749	break;
3750
3751	case SUPPAGINGMODE_AMD64:
3752	case SUPPAGINGMODE_AMD64_GLOBAL:
3753	case SUPPAGINGMODE_AMD64_NX:
3754	case SUPPAGINGMODE_AMD64_GLOBAL_NX:
3755	enmShadowMode = PGMMODE_AMD64;
3756	enmSwitcher = VMMSWITCHER_AMD64_TO_AMD64;
3757	break;
3758
3759	default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
3760	}
3761	break;
3762
3763
3764	default:
3765	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
3766	return PGMMODE_INVALID;
3767	}
3768	/* Override the shadow mode is nested paging is active. */
3769	if (HWACCMIsNestedPagingActive(pVM))
3770	enmShadowMode = HWACCMGetShwPagingMode(pVM);
3771
3772	*penmSwitcher = enmSwitcher;
3773	return enmShadowMode;
3774	}
3775
3776
3777	/**
3778	* Performs the actual mode change.
3779	* This is called by PGMChangeMode and pgmR3InitPaging().
3780	*
3781	* @returns VBox status code. May suspend or power off the VM on error, but this
3782	* will trigger using FFs and not status codes.
3783	*
3784	* @param pVM VM handle.
3785	* @param pVCpu The VMCPU to operate on.
3786	* @param enmGuestMode The new guest mode. This is assumed to be different from
3787	* the current mode.
3788	*/
3789	VMMR3DECL(int) PGMR3ChangeMode(PVM pVM, PVMCPU pVCpu, PGMMODE enmGuestMode)
3790	{
3791	Log(("PGMR3ChangeMode: Guest mode: %s -> %s\n", PGMGetModeName(pVCpu->pgm.s.enmGuestMode), PGMGetModeName(enmGuestMode)));
3792	STAM_REL_COUNTER_INC(&pVCpu->pgm.s.cGuestModeChanges);
3793
3794	/*
3795	* Calc the shadow mode and switcher.
3796	*/
3797	VMMSWITCHER enmSwitcher;
3798	PGMMODE enmShadowMode = pgmR3CalcShadowMode(pVM, enmGuestMode, pVM->pgm.s.enmHostMode, pVCpu->pgm.s.enmShadowMode, &enmSwitcher);
3799	if (enmSwitcher != VMMSWITCHER_INVALID)
3800	{
3801	/*
3802	* Select new switcher.
3803	*/
3804	int rc = VMMR3SelectSwitcher(pVM, enmSwitcher);
3805	if (RT_FAILURE(rc))
3806	{
3807	AssertReleaseMsgFailed(("VMMR3SelectSwitcher(%d) -> %Rrc\n", enmSwitcher, rc));
3808	return rc;
3809	}
3810	}
3811
3812	/*
3813	* Exit old mode(s).
3814	*/
3815	/* shadow */
3816	if (enmShadowMode != pVCpu->pgm.s.enmShadowMode)
3817	{
3818	LogFlow(("PGMR3ChangeMode: Shadow mode: %s -> %s\n", PGMGetModeName(pVCpu->pgm.s.enmShadowMode), PGMGetModeName(enmShadowMode)));
3819	if (PGM_SHW_PFN(Exit, pVCpu))
3820	{
3821	int rc = PGM_SHW_PFN(Exit, pVCpu)(pVCpu);
3822	if (RT_FAILURE(rc))
3823	{
3824	AssertMsgFailed(("Exit failed for shadow mode %d: %Rrc\n", pVCpu->pgm.s.enmShadowMode, rc));
3825	return rc;
3826	}
3827	}
3828
3829	}
3830	else
3831	LogFlow(("PGMR3ChangeMode: Shadow mode remains: %s\n", PGMGetModeName(pVCpu->pgm.s.enmShadowMode)));
3832
3833	/* guest */
3834	if (PGM_GST_PFN(Exit, pVCpu))
3835	{
3836	int rc = PGM_GST_PFN(Exit, pVCpu)(pVCpu);
3837	if (RT_FAILURE(rc))
3838	{
3839	AssertMsgFailed(("Exit failed for guest mode %d: %Rrc\n", pVCpu->pgm.s.enmGuestMode, rc));
3840	return rc;
3841	}
3842	}
3843
3844	/*
3845	* Load new paging mode data.
3846	*/
3847	pgmR3ModeDataSwitch(pVM, pVCpu, enmShadowMode, enmGuestMode);
3848
3849	/*
3850	* Enter new shadow mode (if changed).
3851	*/
3852	if (enmShadowMode != pVCpu->pgm.s.enmShadowMode)
3853	{
3854	int rc;
3855	pVCpu->pgm.s.enmShadowMode = enmShadowMode;
3856	switch (enmShadowMode)
3857	{
3858	case PGMMODE_32_BIT:
3859	rc = PGM_SHW_NAME_32BIT(Enter)(pVCpu);
3860	break;
3861	case PGMMODE_PAE:
3862	case PGMMODE_PAE_NX:
3863	rc = PGM_SHW_NAME_PAE(Enter)(pVCpu);
3864	break;
3865	case PGMMODE_AMD64:
3866	case PGMMODE_AMD64_NX:
3867	rc = PGM_SHW_NAME_AMD64(Enter)(pVCpu);
3868	break;
3869	case PGMMODE_NESTED:
3870	rc = PGM_SHW_NAME_NESTED(Enter)(pVCpu);
3871	break;
3872	case PGMMODE_EPT:
3873	rc = PGM_SHW_NAME_EPT(Enter)(pVCpu);
3874	break;
3875	case PGMMODE_REAL:
3876	case PGMMODE_PROTECTED:
3877	default:
3878	AssertReleaseMsgFailed(("enmShadowMode=%d\n", enmShadowMode));
3879	return VERR_INTERNAL_ERROR;
3880	}
3881	if (RT_FAILURE(rc))
3882	{
3883	AssertReleaseMsgFailed(("Entering enmShadowMode=%d failed: %Rrc\n", enmShadowMode, rc));
3884	pVCpu->pgm.s.enmShadowMode = PGMMODE_INVALID;
3885	return rc;
3886	}
3887	}
3888
3889	/*
3890	* Always flag the necessary updates
3891	*/
3892	VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
3893
3894	/*
3895	* Enter the new guest and shadow+guest modes.
3896	*/
3897	int rc = -1;
3898	int rc2 = -1;
3899	RTGCPHYS GCPhysCR3 = NIL_RTGCPHYS;
3900	pVCpu->pgm.s.enmGuestMode = enmGuestMode;
3901	switch (enmGuestMode)
3902	{
3903	case PGMMODE_REAL:
3904	rc = PGM_GST_NAME_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3905	switch (pVCpu->pgm.s.enmShadowMode)
3906	{
3907	case PGMMODE_32_BIT:
3908	rc2 = PGM_BTH_NAME_32BIT_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3909	break;
3910	case PGMMODE_PAE:
3911	case PGMMODE_PAE_NX:
3912	rc2 = PGM_BTH_NAME_PAE_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3913	break;
3914	case PGMMODE_NESTED:
3915	rc2 = PGM_BTH_NAME_NESTED_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3916	break;
3917	case PGMMODE_EPT:
3918	rc2 = PGM_BTH_NAME_EPT_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
3919	break;
3920	case PGMMODE_AMD64:
3921	case PGMMODE_AMD64_NX:
3922	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3923	default: AssertFailed(); break;
3924	}
3925	break;
3926
3927	case PGMMODE_PROTECTED:
3928	rc = PGM_GST_NAME_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3929	switch (pVCpu->pgm.s.enmShadowMode)
3930	{
3931	case PGMMODE_32_BIT:
3932	rc2 = PGM_BTH_NAME_32BIT_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3933	break;
3934	case PGMMODE_PAE:
3935	case PGMMODE_PAE_NX:
3936	rc2 = PGM_BTH_NAME_PAE_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3937	break;
3938	case PGMMODE_NESTED:
3939	rc2 = PGM_BTH_NAME_NESTED_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3940	break;
3941	case PGMMODE_EPT:
3942	rc2 = PGM_BTH_NAME_EPT_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
3943	break;
3944	case PGMMODE_AMD64:
3945	case PGMMODE_AMD64_NX:
3946	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3947	default: AssertFailed(); break;
3948	}
3949	break;
3950
3951	case PGMMODE_32_BIT:
3952	GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & X86_CR3_PAGE_MASK;
3953	rc = PGM_GST_NAME_32BIT(Enter)(pVCpu, GCPhysCR3);
3954	switch (pVCpu->pgm.s.enmShadowMode)
3955	{
3956	case PGMMODE_32_BIT:
3957	rc2 = PGM_BTH_NAME_32BIT_32BIT(Enter)(pVCpu, GCPhysCR3);
3958	break;
3959	case PGMMODE_PAE:
3960	case PGMMODE_PAE_NX:
3961	rc2 = PGM_BTH_NAME_PAE_32BIT(Enter)(pVCpu, GCPhysCR3);
3962	break;
3963	case PGMMODE_NESTED:
3964	rc2 = PGM_BTH_NAME_NESTED_32BIT(Enter)(pVCpu, GCPhysCR3);
3965	break;
3966	case PGMMODE_EPT:
3967	rc2 = PGM_BTH_NAME_EPT_32BIT(Enter)(pVCpu, GCPhysCR3);
3968	break;
3969	case PGMMODE_AMD64:
3970	case PGMMODE_AMD64_NX:
3971	AssertMsgFailed(("Should use PAE shadow mode!\n"));
3972	default: AssertFailed(); break;
3973	}
3974	break;
3975
3976	case PGMMODE_PAE_NX:
3977	case PGMMODE_PAE:
3978	{
3979	uint32_t u32Dummy, u32Features;
3980
3981	CPUMGetGuestCpuId(pVCpu, 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
3982	if (!(u32Features & X86_CPUID_FEATURE_EDX_PAE))
3983	return VMSetRuntimeError(pVM, VMSETRTERR_FLAGS_FATAL, "PAEmode",
3984	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)"));
3985
3986	GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & X86_CR3_PAE_PAGE_MASK;
3987	rc = PGM_GST_NAME_PAE(Enter)(pVCpu, GCPhysCR3);
3988	switch (pVCpu->pgm.s.enmShadowMode)
3989	{
3990	case PGMMODE_PAE:
3991	case PGMMODE_PAE_NX:
3992	rc2 = PGM_BTH_NAME_PAE_PAE(Enter)(pVCpu, GCPhysCR3);
3993	break;
3994	case PGMMODE_NESTED:
3995	rc2 = PGM_BTH_NAME_NESTED_PAE(Enter)(pVCpu, GCPhysCR3);
3996	break;
3997	case PGMMODE_EPT:
3998	rc2 = PGM_BTH_NAME_EPT_PAE(Enter)(pVCpu, GCPhysCR3);
3999	break;
4000	case PGMMODE_32_BIT:
4001	case PGMMODE_AMD64:
4002	case PGMMODE_AMD64_NX:
4003	AssertMsgFailed(("Should use PAE shadow mode!\n"));
4004	default: AssertFailed(); break;
4005	}
4006	break;
4007	}
4008
4009	#ifdef VBOX_WITH_64_BITS_GUESTS
4010	case PGMMODE_AMD64_NX:
4011	case PGMMODE_AMD64:
4012	GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & UINT64_C(0xfffffffffffff000); /** @todo define this mask! */
4013	rc = PGM_GST_NAME_AMD64(Enter)(pVCpu, GCPhysCR3);
4014	switch (pVCpu->pgm.s.enmShadowMode)
4015	{
4016	case PGMMODE_AMD64:
4017	case PGMMODE_AMD64_NX:
4018	rc2 = PGM_BTH_NAME_AMD64_AMD64(Enter)(pVCpu, GCPhysCR3);
4019	break;
4020	case PGMMODE_NESTED:
4021	rc2 = PGM_BTH_NAME_NESTED_AMD64(Enter)(pVCpu, GCPhysCR3);
4022	break;
4023	case PGMMODE_EPT:
4024	rc2 = PGM_BTH_NAME_EPT_AMD64(Enter)(pVCpu, GCPhysCR3);
4025	break;
4026	case PGMMODE_32_BIT:
4027	case PGMMODE_PAE:
4028	case PGMMODE_PAE_NX:
4029	AssertMsgFailed(("Should use AMD64 shadow mode!\n"));
4030	default: AssertFailed(); break;
4031	}
4032	break;
4033	#endif
4034
4035	default:
4036	AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
4037	rc = VERR_NOT_IMPLEMENTED;
4038	break;
4039	}
4040
4041	/* status codes. */
4042	AssertRC(rc);
4043	AssertRC(rc2);
4044	if (RT_SUCCESS(rc))
4045	{
4046	rc = rc2;
4047	if (RT_SUCCESS(rc)) /* no informational status codes. */
4048	rc = VINF_SUCCESS;
4049	}
4050
4051	/* Notify HWACCM as well. */
4052	HWACCMR3PagingModeChanged(pVM, pVCpu, pVCpu->pgm.s.enmShadowMode, pVCpu->pgm.s.enmGuestMode);
4053	return rc;
4054	}
4055
4056
4057	/**
4058	* Called by pgmPoolFlushAllInt prior to flushing the pool.
4059	*
4060	* @returns VBox status code, fully asserted.
4061	* @param pVM The VM handle.
4062	* @param pVCpu The VMCPU to operate on.
4063	*/
4064	int pgmR3ExitShadowModeBeforePoolFlush(PVM pVM, PVMCPU pVCpu)
4065	{
4066	/** @todo Need to synchronize this across all VCPUs! */
4067
4068	/* Unmap the old CR3 value before flushing everything. */
4069	int rc = PGM_BTH_PFN(UnmapCR3, pVCpu)(pVCpu);
4070	AssertRC(rc);
4071
4072	/* Exit the current shadow paging mode as well; nested paging and EPT use a root CR3 which will get flushed here. */
4073	rc = PGM_SHW_PFN(Exit, pVCpu)(pVCpu);
4074	AssertRC(rc);
4075	Assert(pVCpu->pgm.s.pShwPageCR3R3 == NULL);
4076	return rc;
4077	}
4078
4079
4080	/**
4081	* Called by pgmPoolFlushAllInt after flushing the pool.
4082	*
4083	* @returns VBox status code, fully asserted.
4084	* @param pVM The VM handle.
4085	* @param pVCpu The VMCPU to operate on.
4086	*/
4087	int pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu)
4088	{
4089	pVCpu->pgm.s.enmShadowMode = PGMMODE_INVALID;
4090	int rc = PGMR3ChangeMode(pVM, pVCpu, PGMGetGuestMode(pVCpu));
4091	Assert(VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
4092	AssertRCReturn(rc, rc);
4093	AssertRCSuccessReturn(rc, VERR_IPE_UNEXPECTED_INFO_STATUS);
4094
4095	Assert(pVCpu->pgm.s.pShwPageCR3R3 != NULL);
4096	AssertMsg( pVCpu->pgm.s.enmShadowMode >= PGMMODE_NESTED
4097	\|\| CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu),
4098	("%RHp != %RHp %s\n", (RTHCPHYS)CPUMGetHyperCR3(pVCpu), PGMGetHyperCR3(pVCpu), PGMGetModeName(pVCpu->pgm.s.enmShadowMode)));
4099	return rc;
4100	}
4101
4102
4103	/**
4104	* Dumps a PAE shadow page table.
4105	*
4106	* @returns VBox status code (VINF_SUCCESS).
4107	* @param pVM The VM handle.
4108	* @param pPT Pointer to the page table.
4109	* @param u64Address The virtual address of the page table starts.
4110	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
4111	* @param cMaxDepth The maxium depth.
4112	* @param pHlp Pointer to the output functions.
4113	*/
4114	static int pgmR3DumpHierarchyHCPaePT(PVM pVM, PX86PTPAE pPT, uint64_t u64Address, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4115	{
4116	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
4117	{
4118	X86PTEPAE Pte = pPT->a[i];
4119	if (Pte.n.u1Present)
4120	{
4121	pHlp->pfnPrintf(pHlp,
4122	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
4123	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n"
4124	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n",
4125	u64Address + ((uint64_t)i << X86_PT_PAE_SHIFT),
4126	Pte.n.u1Write ? 'W' : 'R',
4127	Pte.n.u1User ? 'U' : 'S',
4128	Pte.n.u1Accessed ? 'A' : '-',
4129	Pte.n.u1Dirty ? 'D' : '-',
4130	Pte.n.u1Global ? 'G' : '-',
4131	Pte.n.u1WriteThru ? "WT" : "--",
4132	Pte.n.u1CacheDisable? "CD" : "--",
4133	Pte.n.u1PAT ? "AT" : "--",
4134	Pte.n.u1NoExecute ? "NX" : "--",
4135	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
4136	Pte.u & RT_BIT(10) ? '1' : '0',
4137	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED? 'v' : '-',
4138	Pte.u & X86_PTE_PAE_PG_MASK);
4139	}
4140	}
4141	return VINF_SUCCESS;
4142	}
4143
4144
4145	/**
4146	* Dumps a PAE shadow page directory table.
4147	*
4148	* @returns VBox status code (VINF_SUCCESS).
4149	* @param pVM The VM handle.
4150	* @param HCPhys The physical address of the page directory table.
4151	* @param u64Address The virtual address of the page table starts.
4152	* @param cr4 The CR4, PSE is currently used.
4153	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
4154	* @param cMaxDepth The maxium depth.
4155	* @param pHlp Pointer to the output functions.
4156	*/
4157	static int pgmR3DumpHierarchyHCPaePD(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4158	{
4159	PX86PDPAE pPD = (PX86PDPAE)MMPagePhys2Page(pVM, HCPhys);
4160	if (!pPD)
4161	{
4162	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory at HCPhys=%RHp was not found in the page pool!\n",
4163	fLongMode ? 16 : 8, u64Address, HCPhys);
4164	return VERR_INVALID_PARAMETER;
4165	}
4166	const bool fBigPagesSupported = fLongMode \|\| !!(cr4 & X86_CR4_PSE);
4167
4168	int rc = VINF_SUCCESS;
4169	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
4170	{
4171	X86PDEPAE Pde = pPD->a[i];
4172	if (Pde.n.u1Present)
4173	{
4174	if (fBigPagesSupported && Pde.b.u1Size)
4175	pHlp->pfnPrintf(pHlp,
4176	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
4177	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n"
4178	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n",
4179	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
4180	Pde.b.u1Write ? 'W' : 'R',
4181	Pde.b.u1User ? 'U' : 'S',
4182	Pde.b.u1Accessed ? 'A' : '-',
4183	Pde.b.u1Dirty ? 'D' : '-',
4184	Pde.b.u1Global ? 'G' : '-',
4185	Pde.b.u1WriteThru ? "WT" : "--",
4186	Pde.b.u1CacheDisable? "CD" : "--",
4187	Pde.b.u1PAT ? "AT" : "--",
4188	Pde.b.u1NoExecute ? "NX" : "--",
4189	Pde.u & RT_BIT_64(9) ? '1' : '0',
4190	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
4191	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
4192	Pde.u & X86_PDE_PAE_PG_MASK);
4193	else
4194	{
4195	pHlp->pfnPrintf(pHlp,
4196	fLongMode /P R S A D G WT CD AT NX 4M a p ? /
4197	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n"
4198	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n",
4199	u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
4200	Pde.n.u1Write ? 'W' : 'R',
4201	Pde.n.u1User ? 'U' : 'S',
4202	Pde.n.u1Accessed ? 'A' : '-',
4203	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
4204	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
4205	Pde.n.u1WriteThru ? "WT" : "--",
4206	Pde.n.u1CacheDisable? "CD" : "--",
4207	Pde.n.u1NoExecute ? "NX" : "--",
4208	Pde.u & RT_BIT_64(9) ? '1' : '0',
4209	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
4210	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
4211	Pde.u & X86_PDE_PAE_PG_MASK);
4212	if (cMaxDepth >= 1)
4213	{
4214	/** @todo what about using the page pool for mapping PTs? */
4215	uint64_t u64AddressPT = u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT);
4216	RTHCPHYS HCPhysPT = Pde.u & X86_PDE_PAE_PG_MASK;
4217	PX86PTPAE pPT = NULL;
4218	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
4219	pPT = (PX86PTPAE)MMPagePhys2Page(pVM, HCPhysPT);
4220	else
4221	{
4222	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
4223	{
4224	uint64_t off = u64AddressPT - pMap->GCPtr;
4225	if (off < pMap->cb)
4226	{
4227	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
4228	const int iSub = (int)((off >> X86_PD_PAE_SHIFT) & 1); /* MSC is a pain sometimes */
4229	if ((iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0) != HCPhysPT)
4230	pHlp->pfnPrintf(pHlp, "%0*llx error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
4231	fLongMode ? 16 : 8, u64AddressPT, iPDE,
4232	iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0, HCPhysPT);
4233	pPT = &pMap->aPTs[iPDE].paPaePTsR3[iSub];
4234	}
4235	}
4236	}
4237	int rc2 = VERR_INVALID_PARAMETER;
4238	if (pPT)
4239	rc2 = pgmR3DumpHierarchyHCPaePT(pVM, pPT, u64AddressPT, fLongMode, cMaxDepth - 1, pHlp);
4240	else
4241	pHlp->pfnPrintf(pHlp, "%0*llx error! Page table at HCPhys=%RHp was not found in the page pool!\n",
4242	fLongMode ? 16 : 8, u64AddressPT, HCPhysPT);
4243	if (rc2 < rc && RT_SUCCESS(rc))
4244	rc = rc2;
4245	}
4246	}
4247	}
4248	}
4249	return rc;
4250	}
4251
4252
4253	/**
4254	* Dumps a PAE shadow page directory pointer table.
4255	*
4256	* @returns VBox status code (VINF_SUCCESS).
4257	* @param pVM The VM handle.
4258	* @param HCPhys The physical address of the page directory pointer table.
4259	* @param u64Address The virtual address of the page table starts.
4260	* @param cr4 The CR4, PSE is currently used.
4261	* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
4262	* @param cMaxDepth The maxium depth.
4263	* @param pHlp Pointer to the output functions.
4264	*/
4265	static int pgmR3DumpHierarchyHCPaePDPT(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4266	{
4267	PX86PDPT pPDPT = (PX86PDPT)MMPagePhys2Page(pVM, HCPhys);
4268	if (!pPDPT)
4269	{
4270	pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory pointer table at HCPhys=%RHp was not found in the page pool!\n",
4271	fLongMode ? 16 : 8, u64Address, HCPhys);
4272	return VERR_INVALID_PARAMETER;
4273	}
4274
4275	int rc = VINF_SUCCESS;
4276	const unsigned c = fLongMode ? RT_ELEMENTS(pPDPT->a) : X86_PG_PAE_PDPE_ENTRIES;
4277	for (unsigned i = 0; i < c; i++)
4278	{
4279	X86PDPE Pdpe = pPDPT->a[i];
4280	if (Pdpe.n.u1Present)
4281	{
4282	if (fLongMode)
4283	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
4284	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
4285	u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
4286	Pdpe.lm.u1Write ? 'W' : 'R',
4287	Pdpe.lm.u1User ? 'U' : 'S',
4288	Pdpe.lm.u1Accessed ? 'A' : '-',
4289	Pdpe.lm.u3Reserved & 1? '?' : '.', /* ignored */
4290	Pdpe.lm.u3Reserved & 4? '!' : '.', /* mbz */
4291	Pdpe.lm.u1WriteThru ? "WT" : "--",
4292	Pdpe.lm.u1CacheDisable? "CD" : "--",
4293	Pdpe.lm.u3Reserved & 2? "!" : "..",/* mbz */
4294	Pdpe.lm.u1NoExecute ? "NX" : "--",
4295	Pdpe.u & RT_BIT(9) ? '1' : '0',
4296	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
4297	Pdpe.u & RT_BIT(11) ? '1' : '0',
4298	Pdpe.u & X86_PDPE_PG_MASK);
4299	else
4300	pHlp->pfnPrintf(pHlp, /P G WT CD AT NX 4M a p ? /
4301	"%08x 0 \| P %c %s %s %s %s .. %c%c%c %016llx\n",
4302	i << X86_PDPT_SHIFT,
4303	Pdpe.n.u4Reserved & 1? '!' : '.', /* mbz */
4304	Pdpe.n.u4Reserved & 4? '!' : '.', /* mbz */
4305	Pdpe.n.u1WriteThru ? "WT" : "--",
4306	Pdpe.n.u1CacheDisable? "CD" : "--",
4307	Pdpe.n.u4Reserved & 2? "!" : "..",/* mbz */
4308	Pdpe.u & RT_BIT(9) ? '1' : '0',
4309	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
4310	Pdpe.u & RT_BIT(11) ? '1' : '0',
4311	Pdpe.u & X86_PDPE_PG_MASK);
4312	if (cMaxDepth >= 1)
4313	{
4314	int rc2 = pgmR3DumpHierarchyHCPaePD(pVM, Pdpe.u & X86_PDPE_PG_MASK, u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
4315	cr4, fLongMode, cMaxDepth - 1, pHlp);
4316	if (rc2 < rc && RT_SUCCESS(rc))
4317	rc = rc2;
4318	}
4319	}
4320	}
4321	return rc;
4322	}
4323
4324
4325	/**
4326	* Dumps a 32-bit shadow page table.
4327	*
4328	* @returns VBox status code (VINF_SUCCESS).
4329	* @param pVM The VM handle.
4330	* @param HCPhys The physical address of the table.
4331	* @param cr4 The CR4, PSE is currently used.
4332	* @param cMaxDepth The maxium depth.
4333	* @param pHlp Pointer to the output functions.
4334	*/
4335	static int pgmR3DumpHierarchyHcPaePML4(PVM pVM, RTHCPHYS HCPhys, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4336	{
4337	PX86PML4 pPML4 = (PX86PML4)MMPagePhys2Page(pVM, HCPhys);
4338	if (!pPML4)
4339	{
4340	pHlp->pfnPrintf(pHlp, "Page map level 4 at HCPhys=%RHp was not found in the page pool!\n", HCPhys);
4341	return VERR_INVALID_PARAMETER;
4342	}
4343
4344	int rc = VINF_SUCCESS;
4345	for (unsigned i = 0; i < RT_ELEMENTS(pPML4->a); i++)
4346	{
4347	X86PML4E Pml4e = pPML4->a[i];
4348	if (Pml4e.n.u1Present)
4349	{
4350	uint64_t u64Address = ((uint64_t)i << X86_PML4_SHIFT) \| (((uint64_t)i >> (X86_PML4_SHIFT - X86_PDPT_SHIFT - 1)) * 0xffff000000000000ULL);
4351	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a p ? /
4352	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
4353	u64Address,
4354	Pml4e.n.u1Write ? 'W' : 'R',
4355	Pml4e.n.u1User ? 'U' : 'S',
4356	Pml4e.n.u1Accessed ? 'A' : '-',
4357	Pml4e.n.u3Reserved & 1? '?' : '.', /* ignored */
4358	Pml4e.n.u3Reserved & 4? '!' : '.', /* mbz */
4359	Pml4e.n.u1WriteThru ? "WT" : "--",
4360	Pml4e.n.u1CacheDisable? "CD" : "--",
4361	Pml4e.n.u3Reserved & 2? "!" : "..",/* mbz */
4362	Pml4e.n.u1NoExecute ? "NX" : "--",
4363	Pml4e.u & RT_BIT(9) ? '1' : '0',
4364	Pml4e.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
4365	Pml4e.u & RT_BIT(11) ? '1' : '0',
4366	Pml4e.u & X86_PML4E_PG_MASK);
4367
4368	if (cMaxDepth >= 1)
4369	{
4370	int rc2 = pgmR3DumpHierarchyHCPaePDPT(pVM, Pml4e.u & X86_PML4E_PG_MASK, u64Address, cr4, true, cMaxDepth - 1, pHlp);
4371	if (rc2 < rc && RT_SUCCESS(rc))
4372	rc = rc2;
4373	}
4374	}
4375	}
4376	return rc;
4377	}
4378
4379
4380	/**
4381	* Dumps a 32-bit shadow page table.
4382	*
4383	* @returns VBox status code (VINF_SUCCESS).
4384	* @param pVM The VM handle.
4385	* @param pPT Pointer to the page table.
4386	* @param u32Address The virtual address this table starts at.
4387	* @param pHlp Pointer to the output functions.
4388	*/
4389	int pgmR3DumpHierarchyHC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, PCDBGFINFOHLP pHlp)
4390	{
4391	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
4392	{
4393	X86PTE Pte = pPT->a[i];
4394	if (Pte.n.u1Present)
4395	{
4396	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
4397	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
4398	u32Address + (i << X86_PT_SHIFT),
4399	Pte.n.u1Write ? 'W' : 'R',
4400	Pte.n.u1User ? 'U' : 'S',
4401	Pte.n.u1Accessed ? 'A' : '-',
4402	Pte.n.u1Dirty ? 'D' : '-',
4403	Pte.n.u1Global ? 'G' : '-',
4404	Pte.n.u1WriteThru ? "WT" : "--",
4405	Pte.n.u1CacheDisable? "CD" : "--",
4406	Pte.n.u1PAT ? "AT" : "--",
4407	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
4408	Pte.u & RT_BIT(10) ? '1' : '0',
4409	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
4410	Pte.u & X86_PDE_PG_MASK);
4411	}
4412	}
4413	return VINF_SUCCESS;
4414	}
4415
4416
4417	/**
4418	* Dumps a 32-bit shadow page directory and page tables.
4419	*
4420	* @returns VBox status code (VINF_SUCCESS).
4421	* @param pVM The VM handle.
4422	* @param cr3 The root of the hierarchy.
4423	* @param cr4 The CR4, PSE is currently used.
4424	* @param cMaxDepth How deep into the hierarchy the dumper should go.
4425	* @param pHlp Pointer to the output functions.
4426	*/
4427	int pgmR3DumpHierarchyHC32BitPD(PVM pVM, uint32_t cr3, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4428	{
4429	PX86PD pPD = (PX86PD)MMPagePhys2Page(pVM, cr3 & X86_CR3_PAGE_MASK);
4430	if (!pPD)
4431	{
4432	pHlp->pfnPrintf(pHlp, "Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK);
4433	return VERR_INVALID_PARAMETER;
4434	}
4435
4436	int rc = VINF_SUCCESS;
4437	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
4438	{
4439	X86PDE Pde = pPD->a[i];
4440	if (Pde.n.u1Present)
4441	{
4442	const uint32_t u32Address = i << X86_PD_SHIFT;
4443	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
4444	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
4445	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
4446	u32Address,
4447	Pde.b.u1Write ? 'W' : 'R',
4448	Pde.b.u1User ? 'U' : 'S',
4449	Pde.b.u1Accessed ? 'A' : '-',
4450	Pde.b.u1Dirty ? 'D' : '-',
4451	Pde.b.u1Global ? 'G' : '-',
4452	Pde.b.u1WriteThru ? "WT" : "--",
4453	Pde.b.u1CacheDisable? "CD" : "--",
4454	Pde.b.u1PAT ? "AT" : "--",
4455	Pde.u & RT_BIT_64(9) ? '1' : '0',
4456	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
4457	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
4458	Pde.u & X86_PDE4M_PG_MASK);
4459	else
4460	{
4461	pHlp->pfnPrintf(pHlp, /P R S A D G WT CD AT NX 4M a m d /
4462	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
4463	u32Address,
4464	Pde.n.u1Write ? 'W' : 'R',
4465	Pde.n.u1User ? 'U' : 'S',
4466	Pde.n.u1Accessed ? 'A' : '-',
4467	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
4468	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
4469	Pde.n.u1WriteThru ? "WT" : "--",
4470	Pde.n.u1CacheDisable? "CD" : "--",
4471	Pde.u & RT_BIT_64(9) ? '1' : '0',
4472	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
4473	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
4474	Pde.u & X86_PDE_PG_MASK);
4475	if (cMaxDepth >= 1)
4476	{
4477	/** @todo what about using the page pool for mapping PTs? */
4478	RTHCPHYS HCPhys = Pde.u & X86_PDE_PG_MASK;
4479	PX86PT pPT = NULL;
4480	if (!(Pde.u & PGM_PDFLAGS_MAPPING))
4481	pPT = (PX86PT)MMPagePhys2Page(pVM, HCPhys);
4482	else
4483	{
4484	for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
4485	if (u32Address - pMap->GCPtr < pMap->cb)
4486	{
4487	int iPDE = (u32Address - pMap->GCPtr) >> X86_PD_SHIFT;
4488	if (pMap->aPTs[iPDE].HCPhysPT != HCPhys)
4489	pHlp->pfnPrintf(pHlp, "%08x error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
4490	u32Address, iPDE, pMap->aPTs[iPDE].HCPhysPT, HCPhys);
4491	pPT = pMap->aPTs[iPDE].pPTR3;
4492	}
4493	}
4494	int rc2 = VERR_INVALID_PARAMETER;
4495	if (pPT)
4496	rc2 = pgmR3DumpHierarchyHC32BitPT(pVM, pPT, u32Address, pHlp);
4497	else
4498	pHlp->pfnPrintf(pHlp, "%08x error! Page table at %#x was not found in the page pool!\n", u32Address, HCPhys);
4499	if (rc2 < rc && RT_SUCCESS(rc))
4500	rc = rc2;
4501	}
4502	}
4503	}
4504	}
4505
4506	return rc;
4507	}
4508
4509
4510	/**
4511	* Dumps a 32-bit shadow page table.
4512	*
4513	* @returns VBox status code (VINF_SUCCESS).
4514	* @param pVM The VM handle.
4515	* @param pPT Pointer to the page table.
4516	* @param u32Address The virtual address this table starts at.
4517	* @param PhysSearch Address to search for.
4518	*/
4519	int pgmR3DumpHierarchyGC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, RTGCPHYS PhysSearch)
4520	{
4521	for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
4522	{
4523	X86PTE Pte = pPT->a[i];
4524	if (Pte.n.u1Present)
4525	{
4526	Log(( /P R S A D G WT CD AT NX 4M a m d /
4527	"%08x 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
4528	u32Address + (i << X86_PT_SHIFT),
4529	Pte.n.u1Write ? 'W' : 'R',
4530	Pte.n.u1User ? 'U' : 'S',
4531	Pte.n.u1Accessed ? 'A' : '-',
4532	Pte.n.u1Dirty ? 'D' : '-',
4533	Pte.n.u1Global ? 'G' : '-',
4534	Pte.n.u1WriteThru ? "WT" : "--",
4535	Pte.n.u1CacheDisable? "CD" : "--",
4536	Pte.n.u1PAT ? "AT" : "--",
4537	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
4538	Pte.u & RT_BIT(10) ? '1' : '0',
4539	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
4540	Pte.u & X86_PDE_PG_MASK));
4541
4542	if ((Pte.u & X86_PDE_PG_MASK) == PhysSearch)
4543	{
4544	uint64_t fPageShw = 0;
4545	RTHCPHYS pPhysHC = 0;
4546
4547	/** @todo SMP support!! */
4548	PGMShwGetPage(&pVM->aCpus[0], (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), &fPageShw, &pPhysHC);
4549	Log(("Found %RGp at %RGv -> flags=%llx\n", PhysSearch, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), fPageShw));
4550	}
4551	}
4552	}
4553	return VINF_SUCCESS;
4554	}
4555
4556
4557	/**
4558	* Dumps a 32-bit guest page directory and page tables.
4559	*
4560	* @returns VBox status code (VINF_SUCCESS).
4561	* @param pVM The VM handle.
4562	* @param cr3 The root of the hierarchy.
4563	* @param cr4 The CR4, PSE is currently used.
4564	* @param PhysSearch Address to search for.
4565	*/
4566	VMMR3DECL(int) PGMR3DumpHierarchyGC(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCPHYS PhysSearch)
4567	{
4568	bool fLongMode = false;
4569	const unsigned cch = fLongMode ? 16 : 8; NOREF(cch);
4570	PX86PD pPD = 0;
4571
4572	int rc = PGM_GCPHYS_2_PTR(pVM, cr3 & X86_CR3_PAGE_MASK, &pPD);
4573	if (RT_FAILURE(rc) \|\| !pPD)
4574	{
4575	Log(("Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK));
4576	return VERR_INVALID_PARAMETER;
4577	}
4578
4579	Log(("cr3=%08x cr4=%08x%s\n"
4580	"%-*s P - Present\n"
4581	"%-*s \| R/W - Read (0) / Write (1)\n"
4582	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
4583	"%-*s \| \| \| A - Accessed\n"
4584	"%-*s \| \| \| \| D - Dirty\n"
4585	"%-*s \| \| \| \| \| G - Global\n"
4586	"%-*s \| \| \| \| \| \| WT - Write thru\n"
4587	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
4588	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
4589	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
4590	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
4591	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
4592	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
4593	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
4594	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
4595	- W U - - - -- -- -- -- -- 010 */
4596	, cr3, cr4, fLongMode ? " Long Mode" : "",
4597	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
4598	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address"));
4599
4600	for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
4601	{
4602	X86PDE Pde = pPD->a[i];
4603	if (Pde.n.u1Present)
4604	{
4605	const uint32_t u32Address = i << X86_PD_SHIFT;
4606
4607	if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
4608	Log(( /P R S A D G WT CD AT NX 4M a m d /
4609	"%08x 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
4610	u32Address,
4611	Pde.b.u1Write ? 'W' : 'R',
4612	Pde.b.u1User ? 'U' : 'S',
4613	Pde.b.u1Accessed ? 'A' : '-',
4614	Pde.b.u1Dirty ? 'D' : '-',
4615	Pde.b.u1Global ? 'G' : '-',
4616	Pde.b.u1WriteThru ? "WT" : "--",
4617	Pde.b.u1CacheDisable? "CD" : "--",
4618	Pde.b.u1PAT ? "AT" : "--",
4619	Pde.u & RT_BIT(9) ? '1' : '0',
4620	Pde.u & RT_BIT(10) ? '1' : '0',
4621	Pde.u & RT_BIT(11) ? '1' : '0',
4622	pgmGstGet4MBPhysPage(&pVM->pgm.s, Pde)));
4623	/** @todo PhysSearch */
4624	else
4625	{
4626	Log(( /P R S A D G WT CD AT NX 4M a m d /
4627	"%08x 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
4628	u32Address,
4629	Pde.n.u1Write ? 'W' : 'R',
4630	Pde.n.u1User ? 'U' : 'S',
4631	Pde.n.u1Accessed ? 'A' : '-',
4632	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
4633	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
4634	Pde.n.u1WriteThru ? "WT" : "--",
4635	Pde.n.u1CacheDisable? "CD" : "--",
4636	Pde.u & RT_BIT(9) ? '1' : '0',
4637	Pde.u & RT_BIT(10) ? '1' : '0',
4638	Pde.u & RT_BIT(11) ? '1' : '0',
4639	Pde.u & X86_PDE_PG_MASK));
4640	////if (cMaxDepth >= 1)
4641	{
4642	/** @todo what about using the page pool for mapping PTs? */
4643	RTGCPHYS GCPhys = Pde.u & X86_PDE_PG_MASK;
4644	PX86PT pPT = NULL;
4645
4646	rc = PGM_GCPHYS_2_PTR(pVM, GCPhys, &pPT);
4647
4648	int rc2 = VERR_INVALID_PARAMETER;
4649	if (pPT)
4650	rc2 = pgmR3DumpHierarchyGC32BitPT(pVM, pPT, u32Address, PhysSearch);
4651	else
4652	Log(("%08x error! Page table at %#x was not found in the page pool!\n", u32Address, GCPhys));
4653	if (rc2 < rc && RT_SUCCESS(rc))
4654	rc = rc2;
4655	}
4656	}
4657	}
4658	}
4659
4660	return rc;
4661	}
4662
4663
4664	/**
4665	* Dumps a page table hierarchy use only physical addresses and cr4/lm flags.
4666	*
4667	* @returns VBox status code (VINF_SUCCESS).
4668	* @param pVM The VM handle.
4669	* @param cr3 The root of the hierarchy.
4670	* @param cr4 The cr4, only PAE and PSE is currently used.
4671	* @param fLongMode Set if long mode, false if not long mode.
4672	* @param cMaxDepth Number of levels to dump.
4673	* @param pHlp Pointer to the output functions.
4674	*/
4675	VMMR3DECL(int) PGMR3DumpHierarchyHC(PVM pVM, uint64_t cr3, uint64_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
4676	{
4677	if (!pHlp)
4678	pHlp = DBGFR3InfoLogHlp();
4679	if (!cMaxDepth)
4680	return VINF_SUCCESS;
4681	const unsigned cch = fLongMode ? 16 : 8;
4682	pHlp->pfnPrintf(pHlp,
4683	"cr3=%08x cr4=%08x%s\n"
4684	"%-*s P - Present\n"
4685	"%-*s \| R/W - Read (0) / Write (1)\n"
4686	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
4687	"%-*s \| \| \| A - Accessed\n"
4688	"%-*s \| \| \| \| D - Dirty\n"
4689	"%-*s \| \| \| \| \| G - Global\n"
4690	"%-*s \| \| \| \| \| \| WT - Write thru\n"
4691	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
4692	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
4693	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
4694	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
4695	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
4696	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
4697	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
4698	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
4699	- W U - - - -- -- -- -- -- 010 */
4700	, cr3, cr4, fLongMode ? " Long Mode" : "",
4701	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
4702	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
4703	if (cr4 & X86_CR4_PAE)
4704	{
4705	if (fLongMode)
4706	return pgmR3DumpHierarchyHcPaePML4(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
4707	return pgmR3DumpHierarchyHCPaePDPT(pVM, cr3 & X86_CR3_PAE_PAGE_MASK, 0, cr4, false, cMaxDepth, pHlp);
4708	}
4709	return pgmR3DumpHierarchyHC32BitPD(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
4710	}
4711
4712	#ifdef VBOX_WITH_DEBUGGER
4713
4714	/**
4715	* The '.pgmram' command.
4716	*
4717	* @returns VBox status.
4718	* @param pCmd Pointer to the command descriptor (as registered).
4719	* @param pCmdHlp Pointer to command helper functions.
4720	* @param pVM Pointer to the current VM (if any).
4721	* @param paArgs Pointer to (readonly) array of arguments.
4722	* @param cArgs Number of arguments in the array.
4723	*/
4724	static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4725	{
4726	/*
4727	* Validate input.
4728	*/
4729	if (!pVM)
4730	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4731	if (!pVM->pgm.s.pRamRangesRC)
4732	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no Ram is registered.\n");
4733
4734	/*
4735	* Dump the ranges.
4736	*/
4737	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "From - To (incl) pvHC\n");
4738	PPGMRAMRANGE pRam;
4739	for (pRam = pVM->pgm.s.pRamRangesR3; pRam; pRam = pRam->pNextR3)
4740	{
4741	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
4742	"%RGp - %RGp %p\n",
4743	pRam->GCPhys, pRam->GCPhysLast, pRam->pvR3);
4744	if (RT_FAILURE(rc))
4745	return rc;
4746	}
4747
4748	return VINF_SUCCESS;
4749	}
4750
4751
4752	/**
4753	* The '.pgmmap' command.
4754	*
4755	* @returns VBox status.
4756	* @param pCmd Pointer to the command descriptor (as registered).
4757	* @param pCmdHlp Pointer to command helper functions.
4758	* @param pVM Pointer to the current VM (if any).
4759	* @param paArgs Pointer to (readonly) array of arguments.
4760	* @param cArgs Number of arguments in the array.
4761	*/
4762	static DECLCALLBACK(int) pgmR3CmdMap(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4763	{
4764	/*
4765	* Validate input.
4766	*/
4767	if (!pVM)
4768	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4769	if (!pVM->pgm.s.pMappingsR3)
4770	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no mappings are registered.\n");
4771
4772	/*
4773	* Print message about the fixedness of the mappings.
4774	*/
4775	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, pVM->pgm.s.fMappingsFixed ? "The mappings are FIXED.\n" : "The mappings are FLOATING.\n");
4776	if (RT_FAILURE(rc))
4777	return rc;
4778
4779	/*
4780	* Dump the ranges.
4781	*/
4782	PPGMMAPPING pCur;
4783	for (pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
4784	{
4785	rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
4786	"%08x - %08x %s\n",
4787	pCur->GCPtr, pCur->GCPtrLast, pCur->pszDesc);
4788	if (RT_FAILURE(rc))
4789	return rc;
4790	}
4791
4792	return VINF_SUCCESS;
4793	}
4794
4795
4796	/**
4797	* The '.pgmerror' and '.pgmerroroff' commands.
4798	*
4799	* @returns VBox status.
4800	* @param pCmd Pointer to the command descriptor (as registered).
4801	* @param pCmdHlp Pointer to command helper functions.
4802	* @param pVM Pointer to the current VM (if any).
4803	* @param paArgs Pointer to (readonly) array of arguments.
4804	* @param cArgs Number of arguments in the array.
4805	*/
4806	static DECLCALLBACK(int) pgmR3CmdError(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4807	{
4808	/*
4809	* Validate input.
4810	*/
4811	if (!pVM)
4812	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4813	AssertReturn(cArgs == 0 \|\| (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_STRING),
4814	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Hit bug in the parser.\n"));
4815
4816	if (!cArgs)
4817	{
4818	/*
4819	* Print the list of error injection locations with status.
4820	*/
4821	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "PGM error inject locations:\n");
4822	pCmdHlp->pfnPrintf(pCmdHlp, NULL, " handy - %RTbool\n", pVM->pgm.s.fErrInjHandyPages);
4823	}
4824	else
4825	{
4826
4827	/*
4828	* String switch on where to inject the error.
4829	*/
4830	bool const fNewState = !strcmp(pCmd->pszCmd, "pgmerror");
4831	const char *pszWhere = paArgs[0].u.pszString;
4832	if (!strcmp(pszWhere, "handy"))
4833	ASMAtomicWriteBool(&pVM->pgm.s.fErrInjHandyPages, fNewState);
4834	else
4835	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid 'where' value: %s.\n", pszWhere);
4836	pCmdHlp->pfnPrintf(pCmdHlp, NULL, "done\n");
4837	}
4838	return VINF_SUCCESS;
4839	}
4840
4841
4842	/**
4843	* The '.pgmsync' command.
4844	*
4845	* @returns VBox status.
4846	* @param pCmd Pointer to the command descriptor (as registered).
4847	* @param pCmdHlp Pointer to command helper functions.
4848	* @param pVM Pointer to the current VM (if any).
4849	* @param paArgs Pointer to (readonly) array of arguments.
4850	* @param cArgs Number of arguments in the array.
4851	*/
4852	static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4853	{
4854	/** @todo SMP support */
4855	PVMCPU pVCpu = &pVM->aCpus[0];
4856
4857	/*
4858	* Validate input.
4859	*/
4860	if (!pVM)
4861	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4862
4863	/*
4864	* Force page directory sync.
4865	*/
4866	VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
4867
4868	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Forcing page directory sync.\n");
4869	if (RT_FAILURE(rc))
4870	return rc;
4871
4872	return VINF_SUCCESS;
4873	}
4874
4875
4876	#ifdef VBOX_STRICT
4877	/**
4878	* The '.pgmassertcr3' command.
4879	*
4880	* @returns VBox status.
4881	* @param pCmd Pointer to the command descriptor (as registered).
4882	* @param pCmdHlp Pointer to command helper functions.
4883	* @param pVM Pointer to the current VM (if any).
4884	* @param paArgs Pointer to (readonly) array of arguments.
4885	* @param cArgs Number of arguments in the array.
4886	*/
4887	static DECLCALLBACK(int) pgmR3CmdAssertCR3(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4888	{
4889	/** @todo SMP support!! */
4890	PVMCPU pVCpu = &pVM->aCpus[0];
4891
4892	/*
4893	* Validate input.
4894	*/
4895	if (!pVM)
4896	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4897
4898	int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Checking shadow CR3 page tables for consistency.\n");
4899	if (RT_FAILURE(rc))
4900	return rc;
4901
4902	PGMAssertCR3(pVM, pVCpu, CPUMGetGuestCR3(pVCpu), CPUMGetGuestCR4(pVCpu));
4903
4904	return VINF_SUCCESS;
4905	}
4906	#endif /* VBOX_STRICT */
4907
4908
4909	/**
4910	* The '.pgmsyncalways' command.
4911	*
4912	* @returns VBox status.
4913	* @param pCmd Pointer to the command descriptor (as registered).
4914	* @param pCmdHlp Pointer to command helper functions.
4915	* @param pVM Pointer to the current VM (if any).
4916	* @param paArgs Pointer to (readonly) array of arguments.
4917	* @param cArgs Number of arguments in the array.
4918	*/
4919	static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
4920	{
4921	/** @todo SMP support!! */
4922	PVMCPU pVCpu = &pVM->aCpus[0];
4923
4924	/*
4925	* Validate input.
4926	*/
4927	if (!pVM)
4928	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
4929
4930	/*
4931	* Force page directory sync.
4932	*/
4933	if (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_ALWAYS)
4934	{
4935	ASMAtomicAndU32(&pVCpu->pgm.s.fSyncFlags, ~PGM_SYNC_ALWAYS);
4936	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Disabled permanent forced page directory syncing.\n");
4937	}
4938	else
4939	{
4940	ASMAtomicOrU32(&pVCpu->pgm.s.fSyncFlags, PGM_SYNC_ALWAYS);
4941	VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
4942	return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Enabled permanent forced page directory syncing.\n");
4943	}
4944	}
4945
4946	#endif /* VBOX_WITH_DEBUGGER */
4947
4948	/**
4949	* pvUser argument of the pgmR3CheckIntegrity*Node callbacks.
4950	*/
4951	typedef struct PGMCHECKINTARGS
4952	{
4953	bool fLeftToRight; /*< true: left-to-right; false: right-to-left. /
4954	PPGMPHYSHANDLER pPrevPhys;
4955	PPGMVIRTHANDLER pPrevVirt;
4956	PPGMPHYS2VIRTHANDLER pPrevPhys2Virt;
4957	PVM pVM;
4958	} PGMCHECKINTARGS, *PPGMCHECKINTARGS;
4959
4960	/**
4961	* Validate a node in the physical handler tree.
4962	*
4963	* @returns 0 on if ok, other wise 1.
4964	* @param pNode The handler node.
4965	* @param pvUser pVM.
4966	*/
4967	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
4968	{
4969	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
4970	PPGMPHYSHANDLER pCur = (PPGMPHYSHANDLER)pNode;
4971	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
4972	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGp-%RGp %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4973	AssertReleaseMsg( !pArgs->pPrevPhys
4974	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys->Core.KeyLast > pCur->Core.Key),
4975	("pPrevPhys=%p %RGp-%RGp %s\n"
4976	" pCur=%p %RGp-%RGp %s\n",
4977	pArgs->pPrevPhys, pArgs->pPrevPhys->Core.Key, pArgs->pPrevPhys->Core.KeyLast, pArgs->pPrevPhys->pszDesc,
4978	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4979	pArgs->pPrevPhys = pCur;
4980	return 0;
4981	}
4982
4983
4984	/**
4985	* Validate a node in the virtual handler tree.
4986	*
4987	* @returns 0 on if ok, other wise 1.
4988	* @param pNode The handler node.
4989	* @param pvUser pVM.
4990	*/
4991	static DECLCALLBACK(int) pgmR3CheckIntegrityVirtHandlerNode(PAVLROGCPTRNODECORE pNode, void *pvUser)
4992	{
4993	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
4994	PPGMVIRTHANDLER pCur = (PPGMVIRTHANDLER)pNode;
4995	AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
4996	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGv-%RGv %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
4997	AssertReleaseMsg( !pArgs->pPrevVirt
4998	\|\| (pArgs->fLeftToRight ? pArgs->pPrevVirt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevVirt->Core.KeyLast > pCur->Core.Key),
4999	("pPrevVirt=%p %RGv-%RGv %s\n"
5000	" pCur=%p %RGv-%RGv %s\n",
5001	pArgs->pPrevVirt, pArgs->pPrevVirt->Core.Key, pArgs->pPrevVirt->Core.KeyLast, pArgs->pPrevVirt->pszDesc,
5002	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
5003	for (unsigned iPage = 0; iPage < pCur->cPages; iPage++)
5004	{
5005	AssertReleaseMsg(pCur->aPhysToVirt[iPage].offVirtHandler == -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage]),
5006	("pCur=%p %RGv-%RGv %s\n"
5007	"iPage=%d offVirtHandle=%#x expected %#x\n",
5008	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc,
5009	iPage, pCur->aPhysToVirt[iPage].offVirtHandler, -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage])));
5010	}
5011	pArgs->pPrevVirt = pCur;
5012	return 0;
5013	}
5014
5015
5016	/**
5017	* Validate a node in the virtual handler tree.
5018	*
5019	* @returns 0 on if ok, other wise 1.
5020	* @param pNode The handler node.
5021	* @param pvUser pVM.
5022	*/
5023	static DECLCALLBACK(int) pgmR3CheckIntegrityPhysToVirtHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
5024	{
5025	PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
5026	PPGMPHYS2VIRTHANDLER pCur = (PPGMPHYS2VIRTHANDLER)pNode;
5027	AssertReleaseMsgReturn(!((uintptr_t)pCur & 3), ("\n"), 1);
5028	AssertReleaseMsgReturn(!(pCur->offVirtHandler & 3), ("\n"), 1);
5029	AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGp-%RGp\n", pCur, pCur->Core.Key, pCur->Core.KeyLast));
5030	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
5031	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
5032	("pPrevPhys2Virt=%p %RGp-%RGp\n"
5033	" pCur=%p %RGp-%RGp\n",
5034	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
5035	pCur, pCur->Core.Key, pCur->Core.KeyLast));
5036	AssertReleaseMsg( !pArgs->pPrevPhys2Virt
5037	\|\| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
5038	("pPrevPhys2Virt=%p %RGp-%RGp\n"
5039	" pCur=%p %RGp-%RGp\n",
5040	pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
5041	pCur, pCur->Core.Key, pCur->Core.KeyLast));
5042	AssertReleaseMsg((pCur->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD),
5043	("pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
5044	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
5045	if (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
5046	{
5047	PPGMPHYS2VIRTHANDLER pCur2 = pCur;
5048	for (;;)
5049	{
5050	pCur2 = (PPGMPHYS2VIRTHANDLER)((intptr_t)pCur + (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
5051	AssertReleaseMsg(pCur2 != pCur,
5052	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
5053	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
5054	AssertReleaseMsg((pCur2->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE \| PGMPHYS2VIRTHANDLER_IS_HEAD)) == PGMPHYS2VIRTHANDLER_IN_TREE,
5055	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
5056	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
5057	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
5058	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
5059	AssertReleaseMsg((pCur2->Core.Key ^ pCur->Core.Key) < PAGE_SIZE,
5060	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
5061	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
5062	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
5063	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
5064	AssertReleaseMsg((pCur2->Core.KeyLast ^ pCur->Core.KeyLast) < PAGE_SIZE,
5065	(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
5066	"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
5067	pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
5068	pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
5069	if (!(pCur2->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
5070	break;
5071	}
5072	}
5073
5074	pArgs->pPrevPhys2Virt = pCur;
5075	return 0;
5076	}
5077
5078
5079	/**
5080	* Perform an integrity check on the PGM component.
5081	*
5082	* @returns VINF_SUCCESS if everything is fine.
5083	* @returns VBox error status after asserting on integrity breach.
5084	* @param pVM The VM handle.
5085	*/
5086	VMMR3DECL(int) PGMR3CheckIntegrity(PVM pVM)
5087	{
5088	AssertReleaseReturn(pVM->pgm.s.offVM, VERR_INTERNAL_ERROR);
5089
5090	/*
5091	* Check the trees.
5092	*/
5093	int cErrors = 0;
5094	const static PGMCHECKINTARGS s_LeftToRight = { true, NULL, NULL, NULL, pVM };
5095	const static PGMCHECKINTARGS s_RightToLeft = { false, NULL, NULL, NULL, pVM };
5096	PGMCHECKINTARGS Args = s_LeftToRight;
5097	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, true, pgmR3CheckIntegrityPhysHandlerNode, &Args);
5098	Args = s_RightToLeft;
5099	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, false, pgmR3CheckIntegrityPhysHandlerNode, &Args);
5100	Args = s_LeftToRight;
5101	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->VirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
5102	Args = s_RightToLeft;
5103	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->VirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
5104	Args = s_LeftToRight;
5105	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->HyperVirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
5106	Args = s_RightToLeft;
5107	cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->HyperVirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
5108	Args = s_LeftToRight;
5109	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysToVirtHandlers, true, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
5110	Args = s_RightToLeft;
5111	cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysToVirtHandlers, false, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
5112
5113	return !cErrors ? VINF_SUCCESS : VERR_INTERNAL_ERROR;
5114	}
5115
5116

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source: vbox/trunk/src/VBox/VMM/PGM.cpp@ 19420

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