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source: vbox/trunk/src/VBox/VMM/PGMInternal.h@ 10934

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1/* $Id: PGMInternal.h 10822 2008-07-23 09:02:58Z vboxsync $ */
2/** @file
3 * PGM - Internal header file.
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#ifndef ___PGMInternal_h
23#define ___PGMInternal_h
24
25#include <VBox/cdefs.h>
26#include <VBox/types.h>
27#include <VBox/err.h>
28#include <VBox/stam.h>
29#include <VBox/param.h>
30#include <VBox/vmm.h>
31#include <VBox/mm.h>
32#include <VBox/pdmcritsect.h>
33#include <VBox/pdmapi.h>
34#include <VBox/dis.h>
35#include <VBox/dbgf.h>
36#include <VBox/log.h>
37#include <VBox/gmm.h>
38#include <VBox/hwaccm.h>
39#include <iprt/avl.h>
40#include <iprt/assert.h>
41#include <iprt/critsect.h>
42
43#if !defined(IN_PGM_R3) && !defined(IN_PGM_R0) && !defined(IN_PGM_GC)
44# error "Not in PGM! This is an internal header!"
45#endif
46
47
48/** @defgroup grp_pgm_int Internals
49 * @ingroup grp_pgm
50 * @internal
51 * @{
52 */
53
54
55/** @name PGM Compile Time Config
56 * @{
57 */
58
59/**
60 * Solve page is out of sync issues inside Guest Context (in PGMGC.cpp).
61 * Comment it if it will break something.
62 */
63#define PGM_OUT_OF_SYNC_IN_GC
64
65/**
66 * Check and skip global PDEs for non-global flushes
67 */
68#define PGM_SKIP_GLOBAL_PAGEDIRS_ON_NONGLOBAL_FLUSH
69
70/**
71 * Sync N pages instead of a whole page table
72 */
73#define PGM_SYNC_N_PAGES
74
75/**
76 * Number of pages to sync during a page fault
77 *
78 * When PGMPOOL_WITH_GCPHYS_TRACKING is enabled using high values here
79 * causes a lot of unnecessary extents and also is slower than taking more \#PFs.
80 */
81#define PGM_SYNC_NR_PAGES 8
82
83/**
84 * Number of PGMPhysRead/Write cache entries (must be <= sizeof(uint64_t))
85 */
86#define PGM_MAX_PHYSCACHE_ENTRIES 64
87#define PGM_MAX_PHYSCACHE_ENTRIES_MASK (PGM_MAX_PHYSCACHE_ENTRIES-1)
88
89/**
90 * Enable caching of PGMR3PhysRead/WriteByte/Word/Dword
91 */
92#define PGM_PHYSMEMACCESS_CACHING
93
94/** @def PGMPOOL_WITH_CACHE
95 * Enable agressive caching using the page pool.
96 *
97 * This requires PGMPOOL_WITH_USER_TRACKING and PGMPOOL_WITH_MONITORING.
98 */
99#define PGMPOOL_WITH_CACHE
100
101/** @def PGMPOOL_WITH_MIXED_PT_CR3
102 * When defined, we'll deal with 'uncachable' pages.
103 */
104#ifdef PGMPOOL_WITH_CACHE
105# define PGMPOOL_WITH_MIXED_PT_CR3
106#endif
107
108/** @def PGMPOOL_WITH_MONITORING
109 * Monitor the guest pages which are shadowed.
110 * When this is enabled, PGMPOOL_WITH_CACHE or PGMPOOL_WITH_GCPHYS_TRACKING must
111 * be enabled as well.
112 * @remark doesn't really work without caching now. (Mixed PT/CR3 change.)
113 */
114#ifdef PGMPOOL_WITH_CACHE
115# define PGMPOOL_WITH_MONITORING
116#endif
117
118/** @def PGMPOOL_WITH_GCPHYS_TRACKING
119 * Tracking the of shadow pages mapping guest physical pages.
120 *
121 * This is very expensive, the current cache prototype is trying to figure out
122 * whether it will be acceptable with an agressive caching policy.
123 */
124#if defined(PGMPOOL_WITH_CACHE) || defined(PGMPOOL_WITH_MONITORING)
125# define PGMPOOL_WITH_GCPHYS_TRACKING
126#endif
127
128/** @def PGMPOOL_WITH_USER_TRACKNG
129 * Tracking users of shadow pages. This is required for the linking of shadow page
130 * tables and physical guest addresses.
131 */
132#if defined(PGMPOOL_WITH_GCPHYS_TRACKING) || defined(PGMPOOL_WITH_CACHE) || defined(PGMPOOL_WITH_MONITORING)
133# define PGMPOOL_WITH_USER_TRACKING
134#endif
135
136/** @def PGMPOOL_CFG_MAX_GROW
137 * The maximum number of pages to add to the pool in one go.
138 */
139#define PGMPOOL_CFG_MAX_GROW (_256K >> PAGE_SHIFT)
140
141/** @def VBOX_STRICT_PGM_HANDLER_VIRTUAL
142 * Enables some extra assertions for virtual handlers (mainly phys2virt related).
143 */
144#ifdef VBOX_STRICT
145# define VBOX_STRICT_PGM_HANDLER_VIRTUAL
146#endif
147/** @} */
148
149
150/** @name PDPT and PML4 flags.
151 * These are placed in the three bits available for system programs in
152 * the PDPT and PML4 entries.
153 * @{ */
154/** The entry is a permanent one and it's must always be present.
155 * Never free such an entry. */
156#define PGM_PLXFLAGS_PERMANENT RT_BIT_64(10)
157/** Mapping (hypervisor allocated pagetable). */
158#define PGM_PLXFLAGS_MAPPING RT_BIT_64(11)
159/** @} */
160
161/** @name Page directory flags.
162 * These are placed in the three bits available for system programs in
163 * the page directory entries.
164 * @{ */
165/** Mapping (hypervisor allocated pagetable). */
166#define PGM_PDFLAGS_MAPPING RT_BIT_64(10)
167/** Made read-only to facilitate dirty bit tracking. */
168#define PGM_PDFLAGS_TRACK_DIRTY RT_BIT_64(11)
169/** @} */
170
171/** @name Page flags.
172 * These are placed in the three bits available for system programs in
173 * the page entries.
174 * @{ */
175/** Made read-only to facilitate dirty bit tracking. */
176#define PGM_PTFLAGS_TRACK_DIRTY RT_BIT_64(9)
177
178#ifndef PGM_PTFLAGS_CSAM_VALIDATED
179/** Scanned and approved by CSAM (tm).
180 * NOTE: Must be identical to the one defined in CSAMInternal.h!!
181 * @todo Move PGM_PTFLAGS_* and PGM_PDFLAGS_* to VBox/pgm.h. */
182#define PGM_PTFLAGS_CSAM_VALIDATED RT_BIT_64(11)
183#endif
184/** @} */
185
186/** @name Defines used to indicate the shadow and guest paging in the templates.
187 * @{ */
188#define PGM_TYPE_REAL 1
189#define PGM_TYPE_PROT 2
190#define PGM_TYPE_32BIT 3
191#define PGM_TYPE_PAE 4
192#define PGM_TYPE_AMD64 5
193#define PGM_TYPE_NESTED 6
194#define PGM_TYPE_EPT 7
195/** @} */
196
197/** Macro for checking if the guest is using paging.
198 * @param uType PGM_TYPE_*
199 * @remark ASSUMES certain order of the PGM_TYPE_* values.
200 */
201#define PGM_WITH_PAGING(uType) ((uType) >= PGM_TYPE_32BIT && (uType) != PGM_TYPE_NESTED && (uType) != PGM_TYPE_EPT)
202
203/** Macro for checking if the guest supports the NX bit.
204 * @param uType PGM_TYPE_*
205 * @remark ASSUMES certain order of the PGM_TYPE_* values.
206 */
207#define PGM_WITH_NX(uType) ((uType) >= PGM_TYPE_PAE && (uType) != PGM_TYPE_NESTED && (uType) != PGM_TYPE_EPT)
208
209
210/** @def PGM_HCPHYS_2_PTR
211 * Maps a HC physical page pool address to a virtual address.
212 *
213 * @returns VBox status code.
214 * @param pVM The VM handle.
215 * @param HCPhys The HC physical address to map to a virtual one.
216 * @param ppv Where to store the virtual address. No need to cast this.
217 *
218 * @remark In GC this uses PGMGCDynMapHCPage(), so it will consume of the
219 * small page window employeed by that function. Be careful.
220 * @remark There is no need to assert on the result.
221 */
222#ifdef IN_GC
223# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) PGMGCDynMapHCPage(pVM, HCPhys, (void **)(ppv))
224#else
225# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) MMPagePhys2PageEx(pVM, HCPhys, (void **)(ppv))
226#endif
227
228/** @def PGM_GCPHYS_2_PTR
229 * Maps a GC physical page address to a virtual address.
230 *
231 * @returns VBox status code.
232 * @param pVM The VM handle.
233 * @param GCPhys The GC physical address to map to a virtual one.
234 * @param ppv Where to store the virtual address. No need to cast this.
235 *
236 * @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
237 * small page window employeed by that function. Be careful.
238 * @remark There is no need to assert on the result.
239 */
240#ifdef IN_GC
241# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) PGMGCDynMapGCPage(pVM, GCPhys, (void **)(ppv))
242#else
243# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) PGMPhysGCPhys2HCPtr(pVM, GCPhys, 1 /* one page only */, (void **)(ppv)) /** @todo this isn't asserting, use PGMRamGCPhys2HCPtr! */
244#endif
245
246/** @def PGM_GCPHYS_2_PTR_EX
247 * Maps a unaligned GC physical page address to a virtual address.
248 *
249 * @returns VBox status code.
250 * @param pVM The VM handle.
251 * @param GCPhys The GC physical address to map to a virtual one.
252 * @param ppv Where to store the virtual address. No need to cast this.
253 *
254 * @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
255 * small page window employeed by that function. Be careful.
256 * @remark There is no need to assert on the result.
257 */
258#ifdef IN_GC
259# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) PGMGCDynMapGCPageEx(pVM, GCPhys, (void **)(ppv))
260#else
261# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) PGMPhysGCPhys2HCPtr(pVM, GCPhys, 1 /* one page only */, (void **)(ppv)) /** @todo this isn't asserting, use PGMRamGCPhys2HCPtr! */
262#endif
263
264/** @def PGM_INVL_PG
265 * Invalidates a page when in GC does nothing in HC.
266 *
267 * @param GCVirt The virtual address of the page to invalidate.
268 */
269#ifdef IN_GC
270# define PGM_INVL_PG(GCVirt) ASMInvalidatePage((void *)(GCVirt))
271#elif defined(IN_RING0)
272# define PGM_INVL_PG(GCVirt) HWACCMInvalidatePage(pVM, (RTGCPTR)(GCVirt))
273#else
274# define PGM_INVL_PG(GCVirt) HWACCMInvalidatePage(pVM, (RTGCPTR)(GCVirt))
275#endif
276
277/** @def PGM_INVL_BIG_PG
278 * Invalidates a 4MB page directory entry when in GC does nothing in HC.
279 *
280 * @param GCVirt The virtual address within the page directory to invalidate.
281 */
282#ifdef IN_GC
283# define PGM_INVL_BIG_PG(GCVirt) ASMReloadCR3()
284#elif defined(IN_RING0)
285# define PGM_INVL_BIG_PG(GCVirt) HWACCMFlushTLB(pVM)
286#else
287# define PGM_INVL_BIG_PG(GCVirt) HWACCMFlushTLB(pVM)
288#endif
289
290/** @def PGM_INVL_GUEST_TLBS()
291 * Invalidates all guest TLBs.
292 */
293#ifdef IN_GC
294# define PGM_INVL_GUEST_TLBS() ASMReloadCR3()
295#elif defined(IN_RING0)
296# define PGM_INVL_GUEST_TLBS() HWACCMFlushTLB(pVM)
297#else
298# define PGM_INVL_GUEST_TLBS() HWACCMFlushTLB(pVM)
299#endif
300
301
302/**
303 * Structure for tracking GC Mappings.
304 *
305 * This structure is used by linked list in both GC and HC.
306 */
307typedef struct PGMMAPPING
308{
309 /** Pointer to next entry. */
310 R3PTRTYPE(struct PGMMAPPING *) pNextR3;
311 /** Pointer to next entry. */
312 R0PTRTYPE(struct PGMMAPPING *) pNextR0;
313 /** Pointer to next entry. */
314 RCPTRTYPE(struct PGMMAPPING *) pNextGC;
315#if GC_ARCH_BITS == 64
316 RTRCPTR padding0;
317#endif
318 /** Start Virtual address. */
319 RTGCUINTPTR GCPtr;
320 /** Last Virtual address (inclusive). */
321 RTGCUINTPTR GCPtrLast;
322 /** Range size (bytes). */
323 RTGCUINTPTR cb;
324 /** Pointer to relocation callback function. */
325 R3PTRTYPE(PFNPGMRELOCATE) pfnRelocate;
326 /** User argument to the callback. */
327 R3PTRTYPE(void *) pvUser;
328 /** Mapping description / name. For easing debugging. */
329 R3PTRTYPE(const char *) pszDesc;
330 /** Number of page tables. */
331 RTUINT cPTs;
332#if HC_ARCH_BITS != GC_ARCH_BITS || GC_ARCH_BITS == 64
333 RTUINT uPadding1; /**< Alignment padding. */
334#endif
335 /** Array of page table mapping data. Each entry
336 * describes one page table. The array can be longer
337 * than the declared length.
338 */
339 struct
340 {
341 /** The HC physical address of the page table. */
342 RTHCPHYS HCPhysPT;
343 /** The HC physical address of the first PAE page table. */
344 RTHCPHYS HCPhysPaePT0;
345 /** The HC physical address of the second PAE page table. */
346 RTHCPHYS HCPhysPaePT1;
347 /** The HC virtual address of the 32-bit page table. */
348 R3PTRTYPE(PX86PT) pPTR3;
349 /** The HC virtual address of the two PAE page table. (i.e 1024 entries instead of 512) */
350 R3PTRTYPE(PX86PTPAE) paPaePTsR3;
351 /** The GC virtual address of the 32-bit page table. */
352 RCPTRTYPE(PX86PT) pPTGC;
353 /** The GC virtual address of the two PAE page table. */
354 RCPTRTYPE(PX86PTPAE) paPaePTsGC;
355 /** The GC virtual address of the 32-bit page table. */
356 R0PTRTYPE(PX86PT) pPTR0;
357 /** The GC virtual address of the two PAE page table. */
358 R0PTRTYPE(PX86PTPAE) paPaePTsR0;
359 } aPTs[1];
360} PGMMAPPING;
361/** Pointer to structure for tracking GC Mappings. */
362typedef struct PGMMAPPING *PPGMMAPPING;
363
364
365/**
366 * Physical page access handler structure.
367 *
368 * This is used to keep track of physical address ranges
369 * which are being monitored in some kind of way.
370 */
371typedef struct PGMPHYSHANDLER
372{
373 AVLROGCPHYSNODECORE Core;
374 /** Access type. */
375 PGMPHYSHANDLERTYPE enmType;
376 /** Number of pages to update. */
377 uint32_t cPages;
378 /** Pointer to R3 callback function. */
379 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnHandlerR3;
380 /** User argument for R3 handlers. */
381 R3PTRTYPE(void *) pvUserR3;
382 /** Pointer to R0 callback function. */
383 R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnHandlerR0;
384 /** User argument for R0 handlers. */
385 R0PTRTYPE(void *) pvUserR0;
386 /** Pointer to GC callback function. */
387 RCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnHandlerGC;
388 /** User argument for GC handlers. */
389 RCPTRTYPE(void *) pvUserGC;
390 /** Description / Name. For easing debugging. */
391 R3PTRTYPE(const char *) pszDesc;
392#ifdef VBOX_WITH_STATISTICS
393 /** Profiling of this handler. */
394 STAMPROFILE Stat;
395#endif
396} PGMPHYSHANDLER;
397/** Pointer to a physical page access handler structure. */
398typedef PGMPHYSHANDLER *PPGMPHYSHANDLER;
399
400
401/**
402 * Cache node for the physical addresses covered by a virtual handler.
403 */
404typedef struct PGMPHYS2VIRTHANDLER
405{
406 /** Core node for the tree based on physical ranges. */
407 AVLROGCPHYSNODECORE Core;
408 /** Offset from this struct to the PGMVIRTHANDLER structure. */
409 int32_t offVirtHandler;
410 /** Offset of the next alias relative to this one.
411 * Bit 0 is used for indicating whether we're in the tree.
412 * Bit 1 is used for indicating that we're the head node.
413 */
414 int32_t offNextAlias;
415} PGMPHYS2VIRTHANDLER;
416/** Pointer to a phys to virtual handler structure. */
417typedef PGMPHYS2VIRTHANDLER *PPGMPHYS2VIRTHANDLER;
418
419/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
420 * node is in the tree. */
421#define PGMPHYS2VIRTHANDLER_IN_TREE RT_BIT(0)
422/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
423 * node is in the head of an alias chain.
424 * The PGMPHYS2VIRTHANDLER_IN_TREE is always set if this bit is set. */
425#define PGMPHYS2VIRTHANDLER_IS_HEAD RT_BIT(1)
426/** The mask to apply to PGMPHYS2VIRTHANDLER::offNextAlias to get the offset. */
427#define PGMPHYS2VIRTHANDLER_OFF_MASK (~(int32_t)3)
428
429
430/**
431 * Virtual page access handler structure.
432 *
433 * This is used to keep track of virtual address ranges
434 * which are being monitored in some kind of way.
435 */
436typedef struct PGMVIRTHANDLER
437{
438 /** Core node for the tree based on virtual ranges. */
439 AVLROGCPTRNODECORE Core;
440 /** Number of cache pages. */
441 uint32_t u32Padding;
442 /** Access type. */
443 PGMVIRTHANDLERTYPE enmType;
444 /** Number of cache pages. */
445 uint32_t cPages;
446#if GC_ARCH_BITS == 64
447 uint32_t padding0;
448#endif
449/** @todo The next two members are redundant. It adds some readability though. */
450 /** Start of the range. */
451 RTGCPTR GCPtr;
452 /** End of the range (exclusive). */
453 RTGCPTR GCPtrLast;
454 /** Size of the range (in bytes). */
455 RTGCUINTPTR cb;
456 /** Pointer to the GC callback function. */
457 RCPTRTYPE(PFNPGMGCVIRTHANDLER) pfnHandlerGC;
458#if GC_ARCH_BITS == 64
459 RTRCPTR padding1;
460#endif
461 /** Pointer to the HC callback function for invalidation. */
462 R3PTRTYPE(PFNPGMHCVIRTINVALIDATE) pfnInvalidateHC;
463 /** Pointer to the HC callback function. */
464 R3PTRTYPE(PFNPGMHCVIRTHANDLER) pfnHandlerHC;
465 /** Description / Name. For easing debugging. */
466 R3PTRTYPE(const char *) pszDesc;
467#ifdef VBOX_WITH_STATISTICS
468 /** Profiling of this handler. */
469 STAMPROFILE Stat;
470#endif
471 /** Array of cached physical addresses for the monitored ranged. */
472 PGMPHYS2VIRTHANDLER aPhysToVirt[HC_ARCH_BITS == 32 ? 1 : 2];
473} PGMVIRTHANDLER;
474/** Pointer to a virtual page access handler structure. */
475typedef PGMVIRTHANDLER *PPGMVIRTHANDLER;
476
477
478/**
479 * Page type.
480 * @remarks This enum has to fit in a 3-bit field (see PGMPAGE::u3Type).
481 * @todo convert to \#defines.
482 */
483typedef enum PGMPAGETYPE
484{
485 /** The usual invalid zero entry. */
486 PGMPAGETYPE_INVALID = 0,
487 /** RAM page. (RWX) */
488 PGMPAGETYPE_RAM,
489 /** MMIO2 page. (RWX) */
490 PGMPAGETYPE_MMIO2,
491 /** Shadowed ROM. (RWX) */
492 PGMPAGETYPE_ROM_SHADOW,
493 /** ROM page. (R-X) */
494 PGMPAGETYPE_ROM,
495 /** MMIO page. (---) */
496 PGMPAGETYPE_MMIO,
497 /** End of valid entries. */
498 PGMPAGETYPE_END
499} PGMPAGETYPE;
500AssertCompile(PGMPAGETYPE_END < 7);
501
502/** @name Page type predicates.
503 * @{ */
504#define PGMPAGETYPE_IS_READABLE(type) ( (type) <= PGMPAGETYPE_ROM )
505#define PGMPAGETYPE_IS_WRITEABLE(type) ( (type) <= PGMPAGETYPE_ROM_SHADOW )
506#define PGMPAGETYPE_IS_RWX(type) ( (type) <= PGMPAGETYPE_ROM_SHADOW )
507#define PGMPAGETYPE_IS_ROX(type) ( (type) == PGMPAGETYPE_ROM )
508#define PGMPAGETYPE_IS_NP(type) ( (type) == PGMPAGETYPE_MMIO )
509/** @} */
510
511
512/**
513 * A Physical Guest Page tracking structure.
514 *
515 * The format of this structure is complicated because we have to fit a lot
516 * of information into as few bits as possible. The format is also subject
517 * to change (there is one comming up soon). Which means that for we'll be
518 * using PGM_PAGE_GET_*, PGM_PAGE_IS_ and PGM_PAGE_SET_* macros for *all*
519 * accessess to the structure.
520 */
521typedef struct PGMPAGE
522{
523 /** The physical address and a whole lot of other stuff. All bits are used! */
524 RTHCPHYS HCPhys;
525 /** The page state. */
526 uint32_t u2StateX : 2;
527 /** Flag indicating that a write monitored page was written to when set. */
528 uint32_t fWrittenToX : 1;
529 /** For later. */
530 uint32_t fSomethingElse : 1;
531 /** The Page ID.
532 * @todo Merge with HCPhys once we've liberated HCPhys of its stuff.
533 * The HCPhys will be 100% static. */
534 uint32_t idPageX : 28;
535 /** The page type (PGMPAGETYPE). */
536 uint32_t u3Type : 3;
537 /** The physical handler state (PGM_PAGE_HNDL_PHYS_STATE*) */
538 uint32_t u2HandlerPhysStateX : 2;
539 /** The virtual handler state (PGM_PAGE_HNDL_VIRT_STATE*) */
540 uint32_t u2HandlerVirtStateX : 2;
541 uint32_t u29B : 25;
542} PGMPAGE;
543AssertCompileSize(PGMPAGE, 16);
544/** Pointer to a physical guest page. */
545typedef PGMPAGE *PPGMPAGE;
546/** Pointer to a const physical guest page. */
547typedef const PGMPAGE *PCPGMPAGE;
548/** Pointer to a physical guest page pointer. */
549typedef PPGMPAGE *PPPGMPAGE;
550
551
552/**
553 * Clears the page structure.
554 * @param pPage Pointer to the physical guest page tracking structure.
555 */
556#define PGM_PAGE_CLEAR(pPage) \
557 do { \
558 (pPage)->HCPhys = 0; \
559 (pPage)->u2StateX = 0; \
560 (pPage)->fWrittenToX = 0; \
561 (pPage)->fSomethingElse = 0; \
562 (pPage)->idPageX = 0; \
563 (pPage)->u3Type = 0; \
564 (pPage)->u29B = 0; \
565 } while (0)
566
567/**
568 * Initializes the page structure.
569 * @param pPage Pointer to the physical guest page tracking structure.
570 */
571#define PGM_PAGE_INIT(pPage, _HCPhys, _idPage, _uType, _uState) \
572 do { \
573 (pPage)->HCPhys = (_HCPhys); \
574 (pPage)->u2StateX = (_uState); \
575 (pPage)->fWrittenToX = 0; \
576 (pPage)->fSomethingElse = 0; \
577 (pPage)->idPageX = (_idPage); \
578 /*(pPage)->u3Type = (_uType); - later */ \
579 PGM_PAGE_SET_TYPE(pPage, _uType); \
580 (pPage)->u29B = 0; \
581 } while (0)
582
583/**
584 * Initializes the page structure of a ZERO page.
585 * @param pPage Pointer to the physical guest page tracking structure.
586 */
587#ifdef VBOX_WITH_NEW_PHYS_CODE
588# define PGM_PAGE_INIT_ZERO(pPage, pVM, _uType) \
589 PGM_PAGE_INIT(pPage, (pVM)->pgm.s.HCPhysZeroPg, NIL_GMM_PAGEID, (_uType), PGM_PAGE_STATE_ZERO)
590#else
591# define PGM_PAGE_INIT_ZERO(pPage, pVM, _uType) \
592 PGM_PAGE_INIT(pPage, 0, NIL_GMM_PAGEID, (_uType), PGM_PAGE_STATE_ZERO)
593#endif
594/** Temporary hack. Replaced by PGM_PAGE_INIT_ZERO once the old code is kicked out. */
595# define PGM_PAGE_INIT_ZERO_REAL(pPage, pVM, _uType) \
596 PGM_PAGE_INIT(pPage, (pVM)->pgm.s.HCPhysZeroPg, NIL_GMM_PAGEID, (_uType), PGM_PAGE_STATE_ZERO)
597
598
599/** @name The Page state, PGMPAGE::u2StateX.
600 * @{ */
601/** The zero page.
602 * This is a per-VM page that's never ever mapped writable. */
603#define PGM_PAGE_STATE_ZERO 0
604/** A allocated page.
605 * This is a per-VM page allocated from the page pool (or wherever
606 * we get MMIO2 pages from if the type is MMIO2).
607 */
608#define PGM_PAGE_STATE_ALLOCATED 1
609/** A allocated page that's being monitored for writes.
610 * The shadow page table mappings are read-only. When a write occurs, the
611 * fWrittenTo member is set, the page remapped as read-write and the state
612 * moved back to allocated. */
613#define PGM_PAGE_STATE_WRITE_MONITORED 2
614/** The page is shared, aka. copy-on-write.
615 * This is a page that's shared with other VMs. */
616#define PGM_PAGE_STATE_SHARED 3
617/** @} */
618
619
620/**
621 * Gets the page state.
622 * @returns page state (PGM_PAGE_STATE_*).
623 * @param pPage Pointer to the physical guest page tracking structure.
624 */
625#define PGM_PAGE_GET_STATE(pPage) ( (pPage)->u2StateX )
626
627/**
628 * Sets the page state.
629 * @param pPage Pointer to the physical guest page tracking structure.
630 * @param _uState The new page state.
631 */
632#define PGM_PAGE_SET_STATE(pPage, _uState) \
633 do { (pPage)->u2StateX = (_uState); } while (0)
634
635
636/**
637 * Gets the host physical address of the guest page.
638 * @returns host physical address (RTHCPHYS).
639 * @param pPage Pointer to the physical guest page tracking structure.
640 */
641#define PGM_PAGE_GET_HCPHYS(pPage) ( (pPage)->HCPhys & UINT64_C(0x0000fffffffff000) )
642
643/**
644 * Sets the host physical address of the guest page.
645 * @param pPage Pointer to the physical guest page tracking structure.
646 * @param _HCPhys The new host physical address.
647 */
648#define PGM_PAGE_SET_HCPHYS(pPage, _HCPhys) \
649 do { (pPage)->HCPhys = (((pPage)->HCPhys) & UINT64_C(0xffff000000000fff)) \
650 | ((_HCPhys) & UINT64_C(0x0000fffffffff000)); } while (0)
651
652/**
653 * Get the Page ID.
654 * @returns The Page ID; NIL_GMM_PAGEID if it's a ZERO page.
655 * @param pPage Pointer to the physical guest page tracking structure.
656 */
657#define PGM_PAGE_GET_PAGEID(pPage) ( (pPage)->idPageX )
658/* later:
659#define PGM_PAGE_GET_PAGEID(pPage) ( ((uint32_t)(pPage)->HCPhys >> (48 - 12))
660 | ((uint32_t)(pPage)->HCPhys & 0xfff) )
661*/
662/**
663 * Sets the Page ID.
664 * @param pPage Pointer to the physical guest page tracking structure.
665 */
666#define PGM_PAGE_SET_PAGEID(pPage, _idPage) do { (pPage)->idPageX = (_idPage); } while (0)
667/* later:
668#define PGM_PAGE_SET_PAGEID(pPage, _idPage) do { (pPage)->HCPhys = (((pPage)->HCPhys) & UINT64_C(0x0000fffffffff000)) \
669 | ((_idPage) & 0xfff) \
670 | (((_idPage) & 0x0ffff000) << (48-12)); } while (0)
671*/
672
673/**
674 * Get the Chunk ID.
675 * @returns The Chunk ID; NIL_GMM_CHUNKID if it's a ZERO page.
676 * @param pPage Pointer to the physical guest page tracking structure.
677 */
678#define PGM_PAGE_GET_CHUNKID(pPage) ( (pPage)->idPageX >> GMM_CHUNKID_SHIFT )
679/* later:
680#if GMM_CHUNKID_SHIFT == 12
681# define PGM_PAGE_GET_CHUNKID(pPage) ( (uint32_t)((pPage)->HCPhys >> 48) )
682#elif GMM_CHUNKID_SHIFT > 12
683# define PGM_PAGE_GET_CHUNKID(pPage) ( (uint32_t)((pPage)->HCPhys >> (48 + (GMM_CHUNKID_SHIFT - 12)) )
684#elif GMM_CHUNKID_SHIFT < 12
685# define PGM_PAGE_GET_CHUNKID(pPage) ( ( (uint32_t)((pPage)->HCPhys >> 48) << (12 - GMM_CHUNKID_SHIFT) ) \
686 | ( (uint32_t)((pPage)->HCPhys & 0xfff) >> GMM_CHUNKID_SHIFT ) )
687#else
688# error "GMM_CHUNKID_SHIFT isn't defined or something."
689#endif
690*/
691
692/**
693 * Get the index of the page within the allocaiton chunk.
694 * @returns The page index.
695 * @param pPage Pointer to the physical guest page tracking structure.
696 */
697#define PGM_PAGE_GET_PAGE_IN_CHUNK(pPage) ( (pPage)->idPageX & GMM_PAGEID_IDX_MASK )
698/* later:
699#if GMM_CHUNKID_SHIFT <= 12
700# define PGM_PAGE_GET_PAGE_IN_CHUNK(pPage) ( (uint32_t)((pPage)->HCPhys & GMM_PAGEID_IDX_MASK) )
701#else
702# define PGM_PAGE_GET_PAGE_IN_CHUNK(pPage) ( (uint32_t)((pPage)->HCPhys & 0xfff) \
703 | ( (uint32_t)((pPage)->HCPhys >> 48) & (RT_BIT_32(GMM_CHUNKID_SHIFT - 12) - 1) ) )
704#endif
705*/
706
707
708/**
709 * Gets the page type.
710 * @returns The page type.
711 * @param pPage Pointer to the physical guest page tracking structure.
712 */
713#define PGM_PAGE_GET_TYPE(pPage) (pPage)->u3Type
714
715/**
716 * Sets the page type.
717 * @param pPage Pointer to the physical guest page tracking structure.
718 * @param _enmType The new page type (PGMPAGETYPE).
719 */
720#ifdef VBOX_WITH_NEW_PHYS_CODE
721#define PGM_PAGE_SET_TYPE(pPage, _enmType) \
722 do { (pPage)->u3Type = (_enmType); } while (0)
723#else
724#define PGM_PAGE_SET_TYPE(pPage, _enmType) \
725 do { \
726 (pPage)->u3Type = (_enmType); \
727 if ((_enmType) == PGMPAGETYPE_ROM) \
728 (pPage)->HCPhys |= MM_RAM_FLAGS_ROM; \
729 else if ((_enmType) == PGMPAGETYPE_ROM_SHADOW) \
730 (pPage)->HCPhys |= MM_RAM_FLAGS_ROM | MM_RAM_FLAGS_MMIO2; \
731 else if ((_enmType) == PGMPAGETYPE_MMIO2) \
732 (pPage)->HCPhys |= MM_RAM_FLAGS_MMIO2; \
733 } while (0)
734#endif
735
736
737/**
738 * Checks if the page is 'reserved'.
739 * @returns true/false.
740 * @param pPage Pointer to the physical guest page tracking structure.
741 */
742#define PGM_PAGE_IS_RESERVED(pPage) ( !!((pPage)->HCPhys & MM_RAM_FLAGS_RESERVED) )
743
744/**
745 * Checks if the page is marked for MMIO.
746 * @returns true/false.
747 * @param pPage Pointer to the physical guest page tracking structure.
748 */
749#define PGM_PAGE_IS_MMIO(pPage) ( !!((pPage)->HCPhys & MM_RAM_FLAGS_MMIO) )
750
751/**
752 * Checks if the page is backed by the ZERO page.
753 * @returns true/false.
754 * @param pPage Pointer to the physical guest page tracking structure.
755 */
756#define PGM_PAGE_IS_ZERO(pPage) ( (pPage)->u2StateX == PGM_PAGE_STATE_ZERO )
757
758/**
759 * Checks if the page is backed by a SHARED page.
760 * @returns true/false.
761 * @param pPage Pointer to the physical guest page tracking structure.
762 */
763#define PGM_PAGE_IS_SHARED(pPage) ( (pPage)->u2StateX == PGM_PAGE_STATE_SHARED )
764
765
766/**
767 * Marks the paget as written to (for GMM change monitoring).
768 * @param pPage Pointer to the physical guest page tracking structure.
769 */
770#define PGM_PAGE_SET_WRITTEN_TO(pPage) do { (pPage)->fWrittenToX = 1; } while (0)
771
772/**
773 * Clears the written-to indicator.
774 * @param pPage Pointer to the physical guest page tracking structure.
775 */
776#define PGM_PAGE_CLEAR_WRITTEN_TO(pPage) do { (pPage)->fWrittenToX = 0; } while (0)
777
778/**
779 * Checks if the page was marked as written-to.
780 * @returns true/false.
781 * @param pPage Pointer to the physical guest page tracking structure.
782 */
783#define PGM_PAGE_IS_WRITTEN_TO(pPage) ( (pPage)->fWrittenToX )
784
785
786/** @name Physical Access Handler State values (PGMPAGE::u2HandlerPhysStateX).
787 *
788 * @remarks The values are assigned in order of priority, so we can calculate
789 * the correct state for a page with different handlers installed.
790 * @{ */
791/** No handler installed. */
792#define PGM_PAGE_HNDL_PHYS_STATE_NONE 0
793/** Monitoring is temporarily disabled. */
794#define PGM_PAGE_HNDL_PHYS_STATE_DISABLED 1
795/** Write access is monitored. */
796#define PGM_PAGE_HNDL_PHYS_STATE_WRITE 2
797/** All access is monitored. */
798#define PGM_PAGE_HNDL_PHYS_STATE_ALL 3
799/** @} */
800
801/**
802 * Gets the physical access handler state of a page.
803 * @returns PGM_PAGE_HNDL_PHYS_STATE_* value.
804 * @param pPage Pointer to the physical guest page tracking structure.
805 */
806#define PGM_PAGE_GET_HNDL_PHYS_STATE(pPage) ( (pPage)->u2HandlerPhysStateX )
807
808/**
809 * Sets the physical access handler state of a page.
810 * @param pPage Pointer to the physical guest page tracking structure.
811 * @param _uState The new state value.
812 */
813#define PGM_PAGE_SET_HNDL_PHYS_STATE(pPage, _uState) \
814 do { (pPage)->u2HandlerPhysStateX = (_uState); } while (0)
815
816/**
817 * Checks if the page has any physical access handlers, including temporariliy disabled ones.
818 * @returns true/false
819 * @param pPage Pointer to the physical guest page tracking structure.
820 */
821#define PGM_PAGE_HAS_ANY_PHYSICAL_HANDLERS(pPage) ( (pPage)->u2HandlerPhysStateX != PGM_PAGE_HNDL_PHYS_STATE_NONE )
822
823/**
824 * Checks if the page has any active physical access handlers.
825 * @returns true/false
826 * @param pPage Pointer to the physical guest page tracking structure.
827 */
828#define PGM_PAGE_HAS_ACTIVE_PHYSICAL_HANDLERS(pPage) ( (pPage)->u2HandlerPhysStateX >= PGM_PAGE_HNDL_PHYS_STATE_WRITE )
829
830
831/** @name Virtual Access Handler State values (PGMPAGE::u2HandlerVirtStateX).
832 *
833 * @remarks The values are assigned in order of priority, so we can calculate
834 * the correct state for a page with different handlers installed.
835 * @{ */
836/** No handler installed. */
837#define PGM_PAGE_HNDL_VIRT_STATE_NONE 0
838/* 1 is reserved so the lineup is identical with the physical ones. */
839/** Write access is monitored. */
840#define PGM_PAGE_HNDL_VIRT_STATE_WRITE 2
841/** All access is monitored. */
842#define PGM_PAGE_HNDL_VIRT_STATE_ALL 3
843/** @} */
844
845/**
846 * Gets the virtual access handler state of a page.
847 * @returns PGM_PAGE_HNDL_VIRT_STATE_* value.
848 * @param pPage Pointer to the physical guest page tracking structure.
849 */
850#define PGM_PAGE_GET_HNDL_VIRT_STATE(pPage) ( (pPage)->u2HandlerVirtStateX )
851
852/**
853 * Sets the virtual access handler state of a page.
854 * @param pPage Pointer to the physical guest page tracking structure.
855 * @param _uState The new state value.
856 */
857#define PGM_PAGE_SET_HNDL_VIRT_STATE(pPage, _uState) \
858 do { (pPage)->u2HandlerVirtStateX = (_uState); } while (0)
859
860/**
861 * Checks if the page has any virtual access handlers.
862 * @returns true/false
863 * @param pPage Pointer to the physical guest page tracking structure.
864 */
865#define PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS(pPage) ( (pPage)->u2HandlerVirtStateX != PGM_PAGE_HNDL_VIRT_STATE_NONE )
866
867/**
868 * Same as PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS - can't disable pages in
869 * virtual handlers.
870 * @returns true/false
871 * @param pPage Pointer to the physical guest page tracking structure.
872 */
873#define PGM_PAGE_HAS_ACTIVE_VIRTUAL_HANDLERS(pPage) PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS(pPage)
874
875
876
877/**
878 * Checks if the page has any access handlers, including temporarily disabled ones.
879 * @returns true/false
880 * @param pPage Pointer to the physical guest page tracking structure.
881 */
882#define PGM_PAGE_HAS_ANY_HANDLERS(pPage) \
883 ( (pPage)->u2HandlerPhysStateX != PGM_PAGE_HNDL_PHYS_STATE_NONE \
884 || (pPage)->u2HandlerVirtStateX != PGM_PAGE_HNDL_VIRT_STATE_NONE )
885
886/**
887 * Checks if the page has any active access handlers.
888 * @returns true/false
889 * @param pPage Pointer to the physical guest page tracking structure.
890 */
891#define PGM_PAGE_HAS_ACTIVE_HANDLERS(pPage) \
892 ( (pPage)->u2HandlerPhysStateX >= PGM_PAGE_HNDL_PHYS_STATE_WRITE \
893 || (pPage)->u2HandlerVirtStateX >= PGM_PAGE_HNDL_VIRT_STATE_WRITE )
894
895/**
896 * Checks if the page has any active access handlers catching all accesses.
897 * @returns true/false
898 * @param pPage Pointer to the physical guest page tracking structure.
899 */
900#define PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(pPage) \
901 ( (pPage)->u2HandlerPhysStateX == PGM_PAGE_HNDL_PHYS_STATE_ALL \
902 || (pPage)->u2HandlerVirtStateX == PGM_PAGE_HNDL_VIRT_STATE_ALL )
903
904
905/**
906 * Ram range for GC Phys to HC Phys conversion.
907 *
908 * Can be used for HC Virt to GC Phys and HC Virt to HC Phys
909 * conversions too, but we'll let MM handle that for now.
910 *
911 * This structure is used by linked lists in both GC and HC.
912 */
913typedef struct PGMRAMRANGE
914{
915 /** Pointer to the next RAM range - for R3. */
916 R3PTRTYPE(struct PGMRAMRANGE *) pNextR3;
917 /** Pointer to the next RAM range - for R0. */
918 R0PTRTYPE(struct PGMRAMRANGE *) pNextR0;
919 /** Pointer to the next RAM range - for GC. */
920 RCPTRTYPE(struct PGMRAMRANGE *) pNextGC;
921 /** Pointer alignment. */
922 RTRCPTR GCPtrAlignment;
923 /** Start of the range. Page aligned. */
924 RTGCPHYS GCPhys;
925 /** Last address in the range (inclusive). Page aligned (-1). */
926 RTGCPHYS GCPhysLast;
927 /** Size of the range. (Page aligned of course). */
928 RTGCPHYS cb;
929 /** MM_RAM_* flags */
930 uint32_t fFlags;
931#ifdef VBOX_WITH_NEW_PHYS_CODE
932 uint32_t u32Alignment; /**< alignment. */
933#else
934 /** HC virtual lookup ranges for chunks. Currently only used with MM_RAM_FLAGS_DYNAMIC_ALLOC ranges. */
935 RCPTRTYPE(PRTHCPTR) pavHCChunkGC;
936 /** HC virtual lookup ranges for chunks. Currently only used with MM_RAM_FLAGS_DYNAMIC_ALLOC ranges. */
937 R3R0PTRTYPE(PRTHCPTR) pavHCChunkHC;
938#endif
939 /** Start of the HC mapping of the range. This is only used for MMIO2. */
940 R3PTRTYPE(void *) pvHC;
941 /** The range description. */
942 R3PTRTYPE(const char *) pszDesc;
943
944 /** Padding to make aPage aligned on sizeof(PGMPAGE). */
945#ifdef VBOX_WITH_NEW_PHYS_CODE
946 uint32_t au32Reserved[2];
947#elif HC_ARCH_BITS == 32
948 uint32_t au32Reserved[1];
949#endif
950
951 /** Array of physical guest page tracking structures. */
952 PGMPAGE aPages[1];
953} PGMRAMRANGE;
954/** Pointer to Ram range for GC Phys to HC Phys conversion. */
955typedef PGMRAMRANGE *PPGMRAMRANGE;
956
957/** Return hc ptr corresponding to the ram range and physical offset */
958#define PGMRAMRANGE_GETHCPTR(pRam, off) \
959 (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC) ? (RTHCPTR)((RTHCUINTPTR)CTXSUFF(pRam->pavHCChunk)[(off >> PGM_DYNAMIC_CHUNK_SHIFT)] + (off & PGM_DYNAMIC_CHUNK_OFFSET_MASK)) \
960 : (RTHCPTR)((RTHCUINTPTR)pRam->pvHC + off);
961
962/**
963 * Per page tracking structure for ROM image.
964 *
965 * A ROM image may have a shadow page, in which case we may have
966 * two pages backing it. This structure contains the PGMPAGE for
967 * both while PGMRAMRANGE have a copy of the active one. It is
968 * important that these aren't out of sync in any regard other
969 * than page pool tracking data.
970 */
971typedef struct PGMROMPAGE
972{
973 /** The page structure for the virgin ROM page. */
974 PGMPAGE Virgin;
975 /** The page structure for the shadow RAM page. */
976 PGMPAGE Shadow;
977 /** The current protection setting. */
978 PGMROMPROT enmProt;
979 /** Pad the structure size to a multiple of 8. */
980 uint32_t u32Padding;
981} PGMROMPAGE;
982/** Pointer to a ROM page tracking structure. */
983typedef PGMROMPAGE *PPGMROMPAGE;
984
985
986/**
987 * A registered ROM image.
988 *
989 * This is needed to keep track of ROM image since they generally
990 * intrude into a PGMRAMRANGE. It also keeps track of additional
991 * info like the two page sets (read-only virgin and read-write shadow),
992 * the current state of each page.
993 *
994 * Because access handlers cannot easily be executed in a different
995 * context, the ROM ranges needs to be accessible and in all contexts.
996 */
997typedef struct PGMROMRANGE
998{
999 /** Pointer to the next range - R3. */
1000 R3PTRTYPE(struct PGMROMRANGE *) pNextR3;
1001 /** Pointer to the next range - R0. */
1002 R0PTRTYPE(struct PGMROMRANGE *) pNextR0;
1003 /** Pointer to the next range - GC. */
1004 RCPTRTYPE(struct PGMROMRANGE *) pNextGC;
1005 /** Pointer alignment */
1006 RTRCPTR GCPtrAlignment;
1007 /** Address of the range. */
1008 RTGCPHYS GCPhys;
1009 /** Address of the last byte in the range. */
1010 RTGCPHYS GCPhysLast;
1011 /** Size of the range. */
1012 RTGCPHYS cb;
1013 /** The flags (PGMPHYS_ROM_FLAG_*). */
1014 uint32_t fFlags;
1015 /**< Alignment padding ensuring that aPages is sizeof(PGMROMPAGE) aligned. */
1016 uint32_t au32Alignemnt[HC_ARCH_BITS == 32 ? 7 : 3];
1017 /** Pointer to the original bits when PGMPHYS_ROM_FLAG_PERMANENT_BINARY was specified.
1018 * This is used for strictness checks. */
1019 R3PTRTYPE(const void *) pvOriginal;
1020 /** The ROM description. */
1021 R3PTRTYPE(const char *) pszDesc;
1022 /** The per page tracking structures. */
1023 PGMROMPAGE aPages[1];
1024} PGMROMRANGE;
1025/** Pointer to a ROM range. */
1026typedef PGMROMRANGE *PPGMROMRANGE;
1027
1028
1029/**
1030 * A registered MMIO2 (= Device RAM) range.
1031 *
1032 * There are a few reason why we need to keep track of these
1033 * registrations. One of them is the deregistration & cleanup
1034 * stuff, while another is that the PGMRAMRANGE associated with
1035 * such a region may have to be removed from the ram range list.
1036 *
1037 * Overlapping with a RAM range has to be 100% or none at all. The
1038 * pages in the existing RAM range must not be ROM nor MMIO. A guru
1039 * meditation will be raised if a partial overlap or an overlap of
1040 * ROM pages is encountered. On an overlap we will free all the
1041 * existing RAM pages and put in the ram range pages instead.
1042 */
1043typedef struct PGMMMIO2RANGE
1044{
1045 /** The owner of the range. (a device) */
1046 PPDMDEVINSR3 pDevInsR3;
1047 /** Pointer to the ring-3 mapping of the allocation. */
1048 RTR3PTR pvR3;
1049 /** Pointer to the next range - R3. */
1050 R3PTRTYPE(struct PGMMMIO2RANGE *) pNextR3;
1051 /** Whether it's mapped or not. */
1052 bool fMapped;
1053 /** Whether it's overlapping or not. */
1054 bool fOverlapping;
1055 /** The PCI region number.
1056 * @remarks This ASSUMES that nobody will ever really need to have multiple
1057 * PCI devices with matching MMIO region numbers on a single device. */
1058 uint8_t iRegion;
1059 /**< Alignment padding for putting the ram range on a PGMPAGE alignment boundrary. */
1060 uint8_t abAlignemnt[HC_ARCH_BITS == 32 ? 1 : 5];
1061 /** The associated RAM range. */
1062 PGMRAMRANGE RamRange;
1063} PGMMMIO2RANGE;
1064/** Pointer to a MMIO2 range. */
1065typedef PGMMMIO2RANGE *PPGMMMIO2RANGE;
1066
1067
1068
1069
1070/** @todo r=bird: fix typename. */
1071/**
1072 * PGMPhysRead/Write cache entry
1073 */
1074typedef struct PGMPHYSCACHE_ENTRY
1075{
1076 /** HC pointer to physical page */
1077 R3PTRTYPE(uint8_t *) pbHC;
1078 /** GC Physical address for cache entry */
1079 RTGCPHYS GCPhys;
1080#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
1081 RTGCPHYS u32Padding0; /**< alignment padding. */
1082#endif
1083} PGMPHYSCACHE_ENTRY;
1084
1085/**
1086 * PGMPhysRead/Write cache to reduce REM memory access overhead
1087 */
1088typedef struct PGMPHYSCACHE
1089{
1090 /** Bitmap of valid cache entries */
1091 uint64_t aEntries;
1092 /** Cache entries */
1093 PGMPHYSCACHE_ENTRY Entry[PGM_MAX_PHYSCACHE_ENTRIES];
1094} PGMPHYSCACHE;
1095
1096
1097/** Pointer to an allocation chunk ring-3 mapping. */
1098typedef struct PGMCHUNKR3MAP *PPGMCHUNKR3MAP;
1099/** Pointer to an allocation chunk ring-3 mapping pointer. */
1100typedef PPGMCHUNKR3MAP *PPPGMCHUNKR3MAP;
1101
1102/**
1103 * Ring-3 tracking structore for an allocation chunk ring-3 mapping.
1104 *
1105 * The primary tree (Core) uses the chunk id as key.
1106 * The secondary tree (AgeCore) is used for ageing and uses ageing sequence number as key.
1107 */
1108typedef struct PGMCHUNKR3MAP
1109{
1110 /** The key is the chunk id. */
1111 AVLU32NODECORE Core;
1112 /** The key is the ageing sequence number. */
1113 AVLLU32NODECORE AgeCore;
1114 /** The current age thingy. */
1115 uint32_t iAge;
1116 /** The current reference count. */
1117 uint32_t volatile cRefs;
1118 /** The current permanent reference count. */
1119 uint32_t volatile cPermRefs;
1120 /** The mapping address. */
1121 void *pv;
1122} PGMCHUNKR3MAP;
1123
1124/**
1125 * Allocation chunk ring-3 mapping TLB entry.
1126 */
1127typedef struct PGMCHUNKR3MAPTLBE
1128{
1129 /** The chunk id. */
1130 uint32_t volatile idChunk;
1131#if HC_ARCH_BITS == 64
1132 uint32_t u32Padding; /**< alignment padding. */
1133#endif
1134 /** The chunk map. */
1135 R3R0PTRTYPE(PPGMCHUNKR3MAP) volatile pChunk;
1136} PGMCHUNKR3MAPTLBE;
1137/** Pointer to the an allocation chunk ring-3 mapping TLB entry. */
1138typedef PGMCHUNKR3MAPTLBE *PPGMCHUNKR3MAPTLBE;
1139
1140/** The number of TLB entries in PGMCHUNKR3MAPTLB.
1141 * @remark Must be a power of two value. */
1142#define PGM_CHUNKR3MAPTLB_ENTRIES 32
1143
1144/**
1145 * Allocation chunk ring-3 mapping TLB.
1146 *
1147 * @remarks We use a TLB to speed up lookups by avoiding walking the AVL.
1148 * At first glance this might look kinda odd since AVL trees are
1149 * supposed to give the most optimial lookup times of all trees
1150 * due to their balancing. However, take a tree with 1023 nodes
1151 * in it, that's 10 levels, meaning that most searches has to go
1152 * down 9 levels before they find what they want. This isn't fast
1153 * compared to a TLB hit. There is the factor of cache misses,
1154 * and of course the problem with trees and branch prediction.
1155 * This is why we use TLBs in front of most of the trees.
1156 *
1157 * @todo Generalize this TLB + AVL stuff, shouldn't be all that
1158 * difficult when we switch to inlined AVL trees (from kStuff).
1159 */
1160typedef struct PGMCHUNKR3MAPTLB
1161{
1162 /** The TLB entries. */
1163 PGMCHUNKR3MAPTLBE aEntries[PGM_CHUNKR3MAPTLB_ENTRIES];
1164} PGMCHUNKR3MAPTLB;
1165
1166/**
1167 * Calculates the index of a guest page in the Ring-3 Chunk TLB.
1168 * @returns Chunk TLB index.
1169 * @param idChunk The Chunk ID.
1170 */
1171#define PGM_CHUNKR3MAPTLB_IDX(idChunk) ( (idChunk) & (PGM_CHUNKR3MAPTLB_ENTRIES - 1) )
1172
1173
1174/**
1175 * Ring-3 guest page mapping TLB entry.
1176 * @remarks used in ring-0 as well at the moment.
1177 */
1178typedef struct PGMPAGER3MAPTLBE
1179{
1180 /** Address of the page. */
1181 RTGCPHYS volatile GCPhys;
1182 /** The guest page. */
1183 R3R0PTRTYPE(PPGMPAGE) volatile pPage;
1184 /** Pointer to the page mapping tracking structure, PGMCHUNKR3MAP. */
1185 R3R0PTRTYPE(PPGMCHUNKR3MAP) volatile pMap;
1186 /** The address */
1187 R3R0PTRTYPE(void *) volatile pv;
1188#if HC_ARCH_BITS == 32
1189 uint32_t u32Padding; /**< alignment padding. */
1190#endif
1191} PGMPAGER3MAPTLBE;
1192/** Pointer to an entry in the HC physical TLB. */
1193typedef PGMPAGER3MAPTLBE *PPGMPAGER3MAPTLBE;
1194
1195
1196/** The number of entries in the ring-3 guest page mapping TLB.
1197 * @remarks The value must be a power of two. */
1198#define PGM_PAGER3MAPTLB_ENTRIES 64
1199
1200/**
1201 * Ring-3 guest page mapping TLB.
1202 * @remarks used in ring-0 as well at the moment.
1203 */
1204typedef struct PGMPAGER3MAPTLB
1205{
1206 /** The TLB entries. */
1207 PGMPAGER3MAPTLBE aEntries[PGM_PAGER3MAPTLB_ENTRIES];
1208} PGMPAGER3MAPTLB;
1209/** Pointer to the ring-3 guest page mapping TLB. */
1210typedef PGMPAGER3MAPTLB *PPGMPAGER3MAPTLB;
1211
1212/**
1213 * Calculates the index of the TLB entry for the specified guest page.
1214 * @returns Physical TLB index.
1215 * @param GCPhys The guest physical address.
1216 */
1217#define PGM_PAGER3MAPTLB_IDX(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGM_PAGER3MAPTLB_ENTRIES - 1) )
1218
1219
1220/** @name Context neutrual page mapper TLB.
1221 *
1222 * Hoping to avoid some code and bug duplication parts of the GCxxx->CCPtr
1223 * code is writting in a kind of context neutrual way. Time will show whether
1224 * this actually makes sense or not...
1225 *
1226 * @{ */
1227/** @typedef PPGMPAGEMAPTLB
1228 * The page mapper TLB pointer type for the current context. */
1229/** @typedef PPGMPAGEMAPTLB
1230 * The page mapper TLB entry pointer type for the current context. */
1231/** @typedef PPGMPAGEMAPTLB
1232 * The page mapper TLB entry pointer pointer type for the current context. */
1233/** @def PGMPAGEMAPTLB_ENTRIES
1234 * The number of TLB entries in the page mapper TLB for the current context. */
1235/** @def PGM_PAGEMAPTLB_IDX
1236 * Calculate the TLB index for a guest physical address.
1237 * @returns The TLB index.
1238 * @param GCPhys The guest physical address. */
1239/** @typedef PPGMPAGEMAP
1240 * Pointer to a page mapper unit for current context. */
1241/** @typedef PPPGMPAGEMAP
1242 * Pointer to a page mapper unit pointer for current context. */
1243#ifdef IN_GC
1244// typedef PPGMPAGEGCMAPTLB PPGMPAGEMAPTLB;
1245// typedef PPGMPAGEGCMAPTLBE PPGMPAGEMAPTLBE;
1246// typedef PPGMPAGEGCMAPTLBE *PPPGMPAGEMAPTLBE;
1247# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGEGCMAPTLB_ENTRIES
1248# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGEGCMAPTLB_IDX(GCPhys)
1249 typedef void * PPGMPAGEMAP;
1250 typedef void ** PPPGMPAGEMAP;
1251//#elif IN_RING0
1252// typedef PPGMPAGER0MAPTLB PPGMPAGEMAPTLB;
1253// typedef PPGMPAGER0MAPTLBE PPGMPAGEMAPTLBE;
1254// typedef PPGMPAGER0MAPTLBE *PPPGMPAGEMAPTLBE;
1255//# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER0MAPTLB_ENTRIES
1256//# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER0MAPTLB_IDX(GCPhys)
1257// typedef PPGMCHUNKR0MAP PPGMPAGEMAP;
1258// typedef PPPGMCHUNKR0MAP PPPGMPAGEMAP;
1259#else
1260 typedef PPGMPAGER3MAPTLB PPGMPAGEMAPTLB;
1261 typedef PPGMPAGER3MAPTLBE PPGMPAGEMAPTLBE;
1262 typedef PPGMPAGER3MAPTLBE *PPPGMPAGEMAPTLBE;
1263# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER3MAPTLB_ENTRIES
1264# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER3MAPTLB_IDX(GCPhys)
1265 typedef PPGMCHUNKR3MAP PPGMPAGEMAP;
1266 typedef PPPGMCHUNKR3MAP PPPGMPAGEMAP;
1267#endif
1268/** @} */
1269
1270
1271/** @name PGM Pool Indexes.
1272 * Aka. the unique shadow page identifier.
1273 * @{ */
1274/** NIL page pool IDX. */
1275#define NIL_PGMPOOL_IDX 0
1276/** The first normal index. */
1277#define PGMPOOL_IDX_FIRST_SPECIAL 1
1278/** Page directory (32-bit root). */
1279#define PGMPOOL_IDX_PD 1
1280/** The extended PAE page directory (2048 entries, works as root currently). */
1281#define PGMPOOL_IDX_PAE_PD 2
1282/** PAE Page Directory Table 0. */
1283#define PGMPOOL_IDX_PAE_PD_0 3
1284/** PAE Page Directory Table 1. */
1285#define PGMPOOL_IDX_PAE_PD_1 4
1286/** PAE Page Directory Table 2. */
1287#define PGMPOOL_IDX_PAE_PD_2 5
1288/** PAE Page Directory Table 3. */
1289#define PGMPOOL_IDX_PAE_PD_3 6
1290/** Page Directory Pointer Table (PAE root, not currently used). */
1291#define PGMPOOL_IDX_PDPT 7
1292/** AMD64 CR3 level index.*/
1293#define PGMPOOL_IDX_AMD64_CR3 8
1294/** Nested paging root.*/
1295#define PGMPOOL_IDX_NESTED_ROOT 9
1296/** The first normal index. */
1297#define PGMPOOL_IDX_FIRST 10
1298/** The last valid index. (inclusive, 14 bits) */
1299#define PGMPOOL_IDX_LAST 0x3fff
1300/** @} */
1301
1302/** The NIL index for the parent chain. */
1303#define NIL_PGMPOOL_USER_INDEX ((uint16_t)0xffff)
1304
1305/**
1306 * Node in the chain linking a shadowed page to it's parent (user).
1307 */
1308#pragma pack(1)
1309typedef struct PGMPOOLUSER
1310{
1311 /** The index to the next item in the chain. NIL_PGMPOOL_USER_INDEX is no next. */
1312 uint16_t iNext;
1313 /** The user page index. */
1314 uint16_t iUser;
1315 /** Index into the user table. */
1316 uint32_t iUserTable;
1317} PGMPOOLUSER, *PPGMPOOLUSER;
1318typedef const PGMPOOLUSER *PCPGMPOOLUSER;
1319#pragma pack()
1320
1321
1322/** The NIL index for the phys ext chain. */
1323#define NIL_PGMPOOL_PHYSEXT_INDEX ((uint16_t)0xffff)
1324
1325/**
1326 * Node in the chain of physical cross reference extents.
1327 */
1328#pragma pack(1)
1329typedef struct PGMPOOLPHYSEXT
1330{
1331 /** The index to the next item in the chain. NIL_PGMPOOL_PHYSEXT_INDEX is no next. */
1332 uint16_t iNext;
1333 /** The user page index. */
1334 uint16_t aidx[3];
1335} PGMPOOLPHYSEXT, *PPGMPOOLPHYSEXT;
1336typedef const PGMPOOLPHYSEXT *PCPGMPOOLPHYSEXT;
1337#pragma pack()
1338
1339
1340/**
1341 * The kind of page that's being shadowed.
1342 */
1343typedef enum PGMPOOLKIND
1344{
1345 /** The virtual invalid 0 entry. */
1346 PGMPOOLKIND_INVALID = 0,
1347 /** The entry is free (=unused). */
1348 PGMPOOLKIND_FREE,
1349
1350 /** Shw: 32-bit page table; Gst: no paging */
1351 PGMPOOLKIND_32BIT_PT_FOR_PHYS,
1352 /** Shw: 32-bit page table; Gst: 32-bit page table. */
1353 PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT,
1354 /** Shw: 32-bit page table; Gst: 4MB page. */
1355 PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB,
1356 /** Shw: PAE page table; Gst: no paging */
1357 PGMPOOLKIND_PAE_PT_FOR_PHYS,
1358 /** Shw: PAE page table; Gst: 32-bit page table. */
1359 PGMPOOLKIND_PAE_PT_FOR_32BIT_PT,
1360 /** Shw: PAE page table; Gst: Half of a 4MB page. */
1361 PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB,
1362 /** Shw: PAE page table; Gst: PAE page table. */
1363 PGMPOOLKIND_PAE_PT_FOR_PAE_PT,
1364 /** Shw: PAE page table; Gst: 2MB page. */
1365 PGMPOOLKIND_PAE_PT_FOR_PAE_2MB,
1366
1367 /** Shw: PAE page directory; Gst: 32-bit page directory. */
1368 PGMPOOLKIND_PAE_PD_FOR_32BIT_PD,
1369 /** Shw: PAE page directory; Gst: PAE page directory. */
1370 PGMPOOLKIND_PAE_PD_FOR_PAE_PD,
1371
1372 /** Shw: 64-bit page directory pointer table; Gst: 64-bit page directory pointer table. */
1373 PGMPOOLKIND_64BIT_PDPT_FOR_64BIT_PDPT,
1374 /** Shw: 64-bit page directory pointer table; Gst: no paging */
1375 PGMPOOLKIND_64BIT_PDPT_FOR_PHYS,
1376 /** Shw: 64-bit page directory table; Gst: 64-bit page directory table. */
1377 PGMPOOLKIND_64BIT_PD_FOR_64BIT_PD,
1378 /** Shw: 64-bit page directory table; Gst: no paging */
1379 PGMPOOLKIND_64BIT_PD_FOR_PHYS,
1380
1381 /** Shw: 64-bit PML4; Gst: 64-bit PML4. */
1382 PGMPOOLKIND_64BIT_PML4_FOR_64BIT_PML4,
1383
1384 /** Shw: Root 32-bit page directory. */
1385 PGMPOOLKIND_ROOT_32BIT_PD,
1386 /** Shw: Root PAE page directory */
1387 PGMPOOLKIND_ROOT_PAE_PD,
1388 /** Shw: Root PAE page directory pointer table (legacy, 4 entries). */
1389 PGMPOOLKIND_ROOT_PDPT,
1390 /** Shw: Root Nested paging table. */
1391 PGMPOOLKIND_ROOT_NESTED,
1392
1393 /** The last valid entry. */
1394 PGMPOOLKIND_LAST = PGMPOOLKIND_ROOT_NESTED
1395} PGMPOOLKIND;
1396
1397
1398/**
1399 * The tracking data for a page in the pool.
1400 */
1401typedef struct PGMPOOLPAGE
1402{
1403 /** AVL node code with the (HC) physical address of this page. */
1404 AVLOHCPHYSNODECORE Core;
1405 /** Pointer to the HC mapping of the page. */
1406 R3R0PTRTYPE(void *) pvPageHC;
1407 /** The guest physical address. */
1408#if HC_ARCH_BITS == 32 && GC_ARCH_BITS == 64
1409 uint32_t Alignment0;
1410#endif
1411 RTGCPHYS GCPhys;
1412 /** The kind of page we're shadowing. (This is really a PGMPOOLKIND enum.) */
1413 uint8_t enmKind;
1414 uint8_t bPadding;
1415 /** The index of this page. */
1416 uint16_t idx;
1417 /** The next entry in the list this page currently resides in.
1418 * It's either in the free list or in the GCPhys hash. */
1419 uint16_t iNext;
1420#ifdef PGMPOOL_WITH_USER_TRACKING
1421 /** Head of the user chain. NIL_PGMPOOL_USER_INDEX if not currently in use. */
1422 uint16_t iUserHead;
1423 /** The number of present entries. */
1424 uint16_t cPresent;
1425 /** The first entry in the table which is present. */
1426 uint16_t iFirstPresent;
1427#endif
1428#ifdef PGMPOOL_WITH_MONITORING
1429 /** The number of modifications to the monitored page. */
1430 uint16_t cModifications;
1431 /** The next modified page. NIL_PGMPOOL_IDX if tail. */
1432 uint16_t iModifiedNext;
1433 /** The previous modified page. NIL_PGMPOOL_IDX if head. */
1434 uint16_t iModifiedPrev;
1435 /** The next page sharing access handler. NIL_PGMPOOL_IDX if tail. */
1436 uint16_t iMonitoredNext;
1437 /** The previous page sharing access handler. NIL_PGMPOOL_IDX if head. */
1438 uint16_t iMonitoredPrev;
1439#endif
1440#ifdef PGMPOOL_WITH_CACHE
1441 /** The next page in the age list. */
1442 uint16_t iAgeNext;
1443 /** The previous page in the age list. */
1444 uint16_t iAgePrev;
1445#endif /* PGMPOOL_WITH_CACHE */
1446 /** Used to indicate that the page is zeroed. */
1447 bool fZeroed;
1448 /** Used to indicate that a PT has non-global entries. */
1449 bool fSeenNonGlobal;
1450 /** Used to indicate that we're monitoring writes to the guest page. */
1451 bool fMonitored;
1452 /** Used to indicate that the page is in the cache (e.g. in the GCPhys hash).
1453 * (All pages are in the age list.) */
1454 bool fCached;
1455 /** This is used by the R3 access handlers when invoked by an async thread.
1456 * It's a hack required because of REMR3NotifyHandlerPhysicalDeregister. */
1457 bool volatile fReusedFlushPending;
1458 /** Used to indicate that the guest is mapping the page is also used as a CR3.
1459 * In these cases the access handler acts differently and will check
1460 * for mapping conflicts like the normal CR3 handler.
1461 * @todo When we change the CR3 shadowing to use pool pages, this flag can be
1462 * replaced by a list of pages which share access handler.
1463 */
1464 bool fCR3Mix;
1465} PGMPOOLPAGE, *PPGMPOOLPAGE, **PPPGMPOOLPAGE;
1466
1467
1468#ifdef PGMPOOL_WITH_CACHE
1469/** The hash table size. */
1470# define PGMPOOL_HASH_SIZE 0x40
1471/** The hash function. */
1472# define PGMPOOL_HASH(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGMPOOL_HASH_SIZE - 1) )
1473#endif
1474
1475
1476/**
1477 * The shadow page pool instance data.
1478 *
1479 * It's all one big allocation made at init time, except for the
1480 * pages that is. The user nodes follows immediatly after the
1481 * page structures.
1482 */
1483typedef struct PGMPOOL
1484{
1485 /** The VM handle - HC Ptr. */
1486 R3R0PTRTYPE(PVM) pVMHC;
1487 /** The VM handle - GC Ptr. */
1488 RCPTRTYPE(PVM) pVMGC;
1489 /** The max pool size. This includes the special IDs. */
1490 uint16_t cMaxPages;
1491 /** The current pool size. */
1492 uint16_t cCurPages;
1493 /** The head of the free page list. */
1494 uint16_t iFreeHead;
1495 /* Padding. */
1496 uint16_t u16Padding;
1497#ifdef PGMPOOL_WITH_USER_TRACKING
1498 /** Head of the chain of free user nodes. */
1499 uint16_t iUserFreeHead;
1500 /** The number of user nodes we've allocated. */
1501 uint16_t cMaxUsers;
1502 /** The number of present page table entries in the entire pool. */
1503 uint32_t cPresent;
1504 /** Pointer to the array of user nodes - GC pointer. */
1505 RCPTRTYPE(PPGMPOOLUSER) paUsersGC;
1506 /** Pointer to the array of user nodes - HC pointer. */
1507 R3R0PTRTYPE(PPGMPOOLUSER) paUsersHC;
1508#endif /* PGMPOOL_WITH_USER_TRACKING */
1509#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
1510 /** Head of the chain of free phys ext nodes. */
1511 uint16_t iPhysExtFreeHead;
1512 /** The number of user nodes we've allocated. */
1513 uint16_t cMaxPhysExts;
1514 /** Pointer to the array of physical xref extent - GC pointer. */
1515 RCPTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsGC;
1516 /** Pointer to the array of physical xref extent nodes - HC pointer. */
1517 R3R0PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsHC;
1518#endif /* PGMPOOL_WITH_GCPHYS_TRACKING */
1519#ifdef PGMPOOL_WITH_CACHE
1520 /** Hash table for GCPhys addresses. */
1521 uint16_t aiHash[PGMPOOL_HASH_SIZE];
1522 /** The head of the age list. */
1523 uint16_t iAgeHead;
1524 /** The tail of the age list. */
1525 uint16_t iAgeTail;
1526 /** Set if the cache is enabled. */
1527 bool fCacheEnabled;
1528#endif /* PGMPOOL_WITH_CACHE */
1529#ifdef PGMPOOL_WITH_MONITORING
1530 /** Head of the list of modified pages. */
1531 uint16_t iModifiedHead;
1532 /** The current number of modified pages. */
1533 uint16_t cModifiedPages;
1534 /** Access handler, GC. */
1535 RCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnAccessHandlerGC;
1536 /** Access handler, R0. */
1537 R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnAccessHandlerR0;
1538 /** Access handler, R3. */
1539 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnAccessHandlerR3;
1540 /** The access handler description (HC ptr). */
1541 R3PTRTYPE(const char *) pszAccessHandler;
1542#endif /* PGMPOOL_WITH_MONITORING */
1543 /** The number of pages currently in use. */
1544 uint16_t cUsedPages;
1545#ifdef VBOX_WITH_STATISTICS
1546 /** The high wather mark for cUsedPages. */
1547 uint16_t cUsedPagesHigh;
1548 uint32_t Alignment1; /**< Align the next member on a 64-bit boundrary. */
1549 /** Profiling pgmPoolAlloc(). */
1550 STAMPROFILEADV StatAlloc;
1551 /** Profiling pgmPoolClearAll(). */
1552 STAMPROFILE StatClearAll;
1553 /** Profiling pgmPoolFlushAllInt(). */
1554 STAMPROFILE StatFlushAllInt;
1555 /** Profiling pgmPoolFlushPage(). */
1556 STAMPROFILE StatFlushPage;
1557 /** Profiling pgmPoolFree(). */
1558 STAMPROFILE StatFree;
1559 /** Profiling time spent zeroing pages. */
1560 STAMPROFILE StatZeroPage;
1561# ifdef PGMPOOL_WITH_USER_TRACKING
1562 /** Profiling of pgmPoolTrackDeref. */
1563 STAMPROFILE StatTrackDeref;
1564 /** Profiling pgmTrackFlushGCPhysPT. */
1565 STAMPROFILE StatTrackFlushGCPhysPT;
1566 /** Profiling pgmTrackFlushGCPhysPTs. */
1567 STAMPROFILE StatTrackFlushGCPhysPTs;
1568 /** Profiling pgmTrackFlushGCPhysPTsSlow. */
1569 STAMPROFILE StatTrackFlushGCPhysPTsSlow;
1570 /** Number of times we've been out of user records. */
1571 STAMCOUNTER StatTrackFreeUpOneUser;
1572# endif
1573# ifdef PGMPOOL_WITH_GCPHYS_TRACKING
1574 /** Profiling deref activity related tracking GC physical pages. */
1575 STAMPROFILE StatTrackDerefGCPhys;
1576 /** Number of linear searches for a HCPhys in the ram ranges. */
1577 STAMCOUNTER StatTrackLinearRamSearches;
1578 /** The number of failing pgmPoolTrackPhysExtAlloc calls. */
1579 STAMCOUNTER StamTrackPhysExtAllocFailures;
1580# endif
1581# ifdef PGMPOOL_WITH_MONITORING
1582 /** Profiling the GC PT access handler. */
1583 STAMPROFILE StatMonitorGC;
1584 /** Times we've failed interpreting the instruction. */
1585 STAMCOUNTER StatMonitorGCEmulateInstr;
1586 /** Profiling the pgmPoolFlushPage calls made from the GC PT access handler. */
1587 STAMPROFILE StatMonitorGCFlushPage;
1588 /** Times we've detected fork(). */
1589 STAMCOUNTER StatMonitorGCFork;
1590 /** Profiling the GC access we've handled (except REP STOSD). */
1591 STAMPROFILE StatMonitorGCHandled;
1592 /** Times we've failed interpreting a patch code instruction. */
1593 STAMCOUNTER StatMonitorGCIntrFailPatch1;
1594 /** Times we've failed interpreting a patch code instruction during flushing. */
1595 STAMCOUNTER StatMonitorGCIntrFailPatch2;
1596 /** The number of times we've seen rep prefixes we can't handle. */
1597 STAMCOUNTER StatMonitorGCRepPrefix;
1598 /** Profiling the REP STOSD cases we've handled. */
1599 STAMPROFILE StatMonitorGCRepStosd;
1600
1601 /** Profiling the HC PT access handler. */
1602 STAMPROFILE StatMonitorHC;
1603 /** Times we've failed interpreting the instruction. */
1604 STAMCOUNTER StatMonitorHCEmulateInstr;
1605 /** Profiling the pgmPoolFlushPage calls made from the HC PT access handler. */
1606 STAMPROFILE StatMonitorHCFlushPage;
1607 /** Times we've detected fork(). */
1608 STAMCOUNTER StatMonitorHCFork;
1609 /** Profiling the HC access we've handled (except REP STOSD). */
1610 STAMPROFILE StatMonitorHCHandled;
1611 /** The number of times we've seen rep prefixes we can't handle. */
1612 STAMCOUNTER StatMonitorHCRepPrefix;
1613 /** Profiling the REP STOSD cases we've handled. */
1614 STAMPROFILE StatMonitorHCRepStosd;
1615 /** The number of times we're called in an async thread an need to flush. */
1616 STAMCOUNTER StatMonitorHCAsync;
1617 /** The high wather mark for cModifiedPages. */
1618 uint16_t cModifiedPagesHigh;
1619 uint16_t Alignment2[3]; /**< Align the next member on a 64-bit boundrary. */
1620# endif
1621# ifdef PGMPOOL_WITH_CACHE
1622 /** The number of cache hits. */
1623 STAMCOUNTER StatCacheHits;
1624 /** The number of cache misses. */
1625 STAMCOUNTER StatCacheMisses;
1626 /** The number of times we've got a conflict of 'kind' in the cache. */
1627 STAMCOUNTER StatCacheKindMismatches;
1628 /** Number of times we've been out of pages. */
1629 STAMCOUNTER StatCacheFreeUpOne;
1630 /** The number of cacheable allocations. */
1631 STAMCOUNTER StatCacheCacheable;
1632 /** The number of uncacheable allocations. */
1633 STAMCOUNTER StatCacheUncacheable;
1634# endif
1635#elif HC_ARCH_BITS == 64
1636 uint32_t Alignment3; /**< Align the next member on a 64-bit boundrary. */
1637#endif
1638 /** The AVL tree for looking up a page by its HC physical address. */
1639 AVLOHCPHYSTREE HCPhysTree;
1640 uint32_t Alignment4; /**< Align the next member on a 64-bit boundrary. */
1641 /** Array of pages. (cMaxPages in length)
1642 * The Id is the index into thist array.
1643 */
1644 PGMPOOLPAGE aPages[PGMPOOL_IDX_FIRST];
1645} PGMPOOL, *PPGMPOOL, **PPPGMPOOL;
1646
1647
1648/** @def PGMPOOL_PAGE_2_PTR
1649 * Maps a pool page pool into the current context.
1650 *
1651 * @returns VBox status code.
1652 * @param pVM The VM handle.
1653 * @param pPage The pool page.
1654 *
1655 * @remark In HC this uses PGMGCDynMapHCPage(), so it will consume of the
1656 * small page window employeed by that function. Be careful.
1657 * @remark There is no need to assert on the result.
1658 */
1659#ifdef IN_GC
1660# define PGMPOOL_PAGE_2_PTR(pVM, pPage) pgmGCPoolMapPage((pVM), (pPage))
1661#else
1662# define PGMPOOL_PAGE_2_PTR(pVM, pPage) ((pPage)->pvPageHC)
1663#endif
1664
1665
1666/**
1667 * Trees are using self relative offsets as pointers.
1668 * So, all its data, including the root pointer, must be in the heap for HC and GC
1669 * to have the same layout.
1670 */
1671typedef struct PGMTREES
1672{
1673 /** Physical access handlers (AVL range+offsetptr tree). */
1674 AVLROGCPHYSTREE PhysHandlers;
1675 /** Virtual access handlers (AVL range + GC ptr tree). */
1676 AVLROGCPTRTREE VirtHandlers;
1677 /** Virtual access handlers (Phys range AVL range + offsetptr tree). */
1678 AVLROGCPHYSTREE PhysToVirtHandlers;
1679 /** Virtual access handlers for the hypervisor (AVL range + GC ptr tree). */
1680 AVLROGCPTRTREE HyperVirtHandlers;
1681} PGMTREES;
1682/** Pointer to PGM trees. */
1683typedef PGMTREES *PPGMTREES;
1684
1685
1686/** @name Paging mode macros
1687 * @{ */
1688#ifdef IN_GC
1689# define PGM_CTX(a,b) a##GC##b
1690# define PGM_CTX_STR(a,b) a "GC" b
1691# define PGM_CTX_DECL(type) PGMGCDECL(type)
1692#else
1693# ifdef IN_RING3
1694# define PGM_CTX(a,b) a##R3##b
1695# define PGM_CTX_STR(a,b) a "R3" b
1696# define PGM_CTX_DECL(type) DECLCALLBACK(type)
1697# else
1698# define PGM_CTX(a,b) a##R0##b
1699# define PGM_CTX_STR(a,b) a "R0" b
1700# define PGM_CTX_DECL(type) PGMDECL(type)
1701# endif
1702#endif
1703
1704#define PGM_GST_NAME_REAL(name) PGM_CTX(pgm,GstReal##name)
1705#define PGM_GST_NAME_GC_REAL_STR(name) "pgmGCGstReal" #name
1706#define PGM_GST_NAME_R0_REAL_STR(name) "pgmR0GstReal" #name
1707#define PGM_GST_NAME_PROT(name) PGM_CTX(pgm,GstProt##name)
1708#define PGM_GST_NAME_GC_PROT_STR(name) "pgmGCGstProt" #name
1709#define PGM_GST_NAME_R0_PROT_STR(name) "pgmR0GstProt" #name
1710#define PGM_GST_NAME_32BIT(name) PGM_CTX(pgm,Gst32Bit##name)
1711#define PGM_GST_NAME_GC_32BIT_STR(name) "pgmGCGst32Bit" #name
1712#define PGM_GST_NAME_R0_32BIT_STR(name) "pgmR0Gst32Bit" #name
1713#define PGM_GST_NAME_PAE(name) PGM_CTX(pgm,GstPAE##name)
1714#define PGM_GST_NAME_GC_PAE_STR(name) "pgmGCGstPAE" #name
1715#define PGM_GST_NAME_R0_PAE_STR(name) "pgmR0GstPAE" #name
1716#define PGM_GST_NAME_AMD64(name) PGM_CTX(pgm,GstAMD64##name)
1717#define PGM_GST_NAME_GC_AMD64_STR(name) "pgmGCGstAMD64" #name
1718#define PGM_GST_NAME_R0_AMD64_STR(name) "pgmR0GstAMD64" #name
1719#define PGM_GST_PFN(name, pVM) ((pVM)->pgm.s.PGM_CTX(pfn,Gst##name))
1720#define PGM_GST_DECL(type, name) PGM_CTX_DECL(type) PGM_GST_NAME(name)
1721
1722#define PGM_SHW_NAME_32BIT(name) PGM_CTX(pgm,Shw32Bit##name)
1723#define PGM_SHW_NAME_GC_32BIT_STR(name) "pgmGCShw32Bit" #name
1724#define PGM_SHW_NAME_R0_32BIT_STR(name) "pgmR0Shw32Bit" #name
1725#define PGM_SHW_NAME_PAE(name) PGM_CTX(pgm,ShwPAE##name)
1726#define PGM_SHW_NAME_GC_PAE_STR(name) "pgmGCShwPAE" #name
1727#define PGM_SHW_NAME_R0_PAE_STR(name) "pgmR0ShwPAE" #name
1728#define PGM_SHW_NAME_AMD64(name) PGM_CTX(pgm,ShwAMD64##name)
1729#define PGM_SHW_NAME_GC_AMD64_STR(name) "pgmGCShwAMD64" #name
1730#define PGM_SHW_NAME_R0_AMD64_STR(name) "pgmR0ShwAMD64" #name
1731#define PGM_SHW_NAME_NESTED(name) PGM_CTX(pgm,ShwNested##name)
1732#define PGM_SHW_NAME_GC_NESTED_STR(name) "pgmGCShwNested" #name
1733#define PGM_SHW_NAME_R0_NESTED_STR(name) "pgmR0ShwNested" #name
1734#define PGM_SHW_NAME_EPT(name) PGM_CTX(pgm,ShwEPT##name)
1735#define PGM_SHW_NAME_GC_EPT_STR(name) "pgmGCShwEPT" #name
1736#define PGM_SHW_NAME_R0_EPT_STR(name) "pgmR0ShwEPT" #name
1737#define PGM_SHW_DECL(type, name) PGM_CTX_DECL(type) PGM_SHW_NAME(name)
1738#define PGM_SHW_PFN(name, pVM) ((pVM)->pgm.s.PGM_CTX(pfn,Shw##name))
1739
1740/* Shw_Gst */
1741#define PGM_BTH_NAME_32BIT_REAL(name) PGM_CTX(pgm,Bth32BitReal##name)
1742#define PGM_BTH_NAME_32BIT_PROT(name) PGM_CTX(pgm,Bth32BitProt##name)
1743#define PGM_BTH_NAME_32BIT_32BIT(name) PGM_CTX(pgm,Bth32Bit32Bit##name)
1744#define PGM_BTH_NAME_PAE_REAL(name) PGM_CTX(pgm,BthPAEReal##name)
1745#define PGM_BTH_NAME_PAE_PROT(name) PGM_CTX(pgm,BthPAEProt##name)
1746#define PGM_BTH_NAME_PAE_32BIT(name) PGM_CTX(pgm,BthPAE32Bit##name)
1747#define PGM_BTH_NAME_PAE_PAE(name) PGM_CTX(pgm,BthPAEPAE##name)
1748#define PGM_BTH_NAME_AMD64_PROT(name) PGM_CTX(pgm,BthAMD64Prot##name)
1749#define PGM_BTH_NAME_AMD64_AMD64(name) PGM_CTX(pgm,BthAMD64AMD64##name)
1750#define PGM_BTH_NAME_NESTED_REAL(name) PGM_CTX(pgm,BthNestedReal##name)
1751#define PGM_BTH_NAME_NESTED_PROT(name) PGM_CTX(pgm,BthNestedProt##name)
1752#define PGM_BTH_NAME_NESTED_32BIT(name) PGM_CTX(pgm,BthNested32Bit##name)
1753#define PGM_BTH_NAME_NESTED_PAE(name) PGM_CTX(pgm,BthNestedPAE##name)
1754#define PGM_BTH_NAME_NESTED_AMD64(name) PGM_CTX(pgm,BthNestedAMD64##name)
1755#define PGM_BTH_NAME_EPT_REAL(name) PGM_CTX(pgm,BthEPTReal##name)
1756#define PGM_BTH_NAME_EPT_PROT(name) PGM_CTX(pgm,BthEPTProt##name)
1757#define PGM_BTH_NAME_EPT_32BIT(name) PGM_CTX(pgm,BthEPT32Bit##name)
1758#define PGM_BTH_NAME_EPT_PAE(name) PGM_CTX(pgm,BthEPTPAE##name)
1759#define PGM_BTH_NAME_EPT_AMD64(name) PGM_CTX(pgm,BthEPTAMD64##name)
1760
1761#define PGM_BTH_NAME_GC_32BIT_REAL_STR(name) "pgmGCBth32BitReal" #name
1762#define PGM_BTH_NAME_GC_32BIT_PROT_STR(name) "pgmGCBth32BitProt" #name
1763#define PGM_BTH_NAME_GC_32BIT_32BIT_STR(name) "pgmGCBth32Bit32Bit" #name
1764#define PGM_BTH_NAME_GC_PAE_REAL_STR(name) "pgmGCBthPAEReal" #name
1765#define PGM_BTH_NAME_GC_PAE_PROT_STR(name) "pgmGCBthPAEProt" #name
1766#define PGM_BTH_NAME_GC_PAE_32BIT_STR(name) "pgmGCBthPAE32Bit" #name
1767#define PGM_BTH_NAME_GC_PAE_PAE_STR(name) "pgmGCBthPAEPAE" #name
1768#define PGM_BTH_NAME_GC_AMD64_AMD64_STR(name) "pgmGCBthAMD64AMD64" #name
1769#define PGM_BTH_NAME_GC_NESTED_REAL_STR(name) "pgmGCBthNestedReal" #name
1770#define PGM_BTH_NAME_GC_NESTED_PROT_STR(name) "pgmGCBthNestedProt" #name
1771#define PGM_BTH_NAME_GC_NESTED_32BIT_STR(name) "pgmGCBthNested32Bit" #name
1772#define PGM_BTH_NAME_GC_NESTED_PAE_STR(name) "pgmGCBthNestedPAE" #name
1773#define PGM_BTH_NAME_GC_NESTED_AMD64_STR(name) "pgmGCBthNestedAMD64" #name
1774#define PGM_BTH_NAME_GC_EPT_REAL_STR(name) "pgmGCBthEPTReal" #name
1775#define PGM_BTH_NAME_GC_EPT_PROT_STR(name) "pgmGCBthEPTProt" #name
1776#define PGM_BTH_NAME_GC_EPT_32BIT_STR(name) "pgmGCBthEPT32Bit" #name
1777#define PGM_BTH_NAME_GC_EPT_PAE_STR(name) "pgmGCBthEPTPAE" #name
1778#define PGM_BTH_NAME_GC_EPT_AMD64_STR(name) "pgmGCBthEPTAMD64" #name
1779#define PGM_BTH_NAME_R0_32BIT_REAL_STR(name) "pgmR0Bth32BitReal" #name
1780#define PGM_BTH_NAME_R0_32BIT_PROT_STR(name) "pgmR0Bth32BitProt" #name
1781#define PGM_BTH_NAME_R0_32BIT_32BIT_STR(name) "pgmR0Bth32Bit32Bit" #name
1782#define PGM_BTH_NAME_R0_PAE_REAL_STR(name) "pgmR0BthPAEReal" #name
1783#define PGM_BTH_NAME_R0_PAE_PROT_STR(name) "pgmR0BthPAEProt" #name
1784#define PGM_BTH_NAME_R0_PAE_32BIT_STR(name) "pgmR0BthPAE32Bit" #name
1785#define PGM_BTH_NAME_R0_PAE_PAE_STR(name) "pgmR0BthPAEPAE" #name
1786#define PGM_BTH_NAME_R0_AMD64_PROT_STR(name) "pgmR0BthAMD64Prot" #name
1787#define PGM_BTH_NAME_R0_AMD64_AMD64_STR(name) "pgmR0BthAMD64AMD64" #name
1788#define PGM_BTH_NAME_R0_NESTED_REAL_STR(name) "pgmR0BthNestedReal" #name
1789#define PGM_BTH_NAME_R0_NESTED_PROT_STR(name) "pgmR0BthNestedProt" #name
1790#define PGM_BTH_NAME_R0_NESTED_32BIT_STR(name) "pgmR0BthNested32Bit" #name
1791#define PGM_BTH_NAME_R0_NESTED_PAE_STR(name) "pgmR0BthNestedPAE" #name
1792#define PGM_BTH_NAME_R0_NESTED_AMD64_STR(name) "pgmR0BthNestedAMD64" #name
1793#define PGM_BTH_NAME_R0_EPT_REAL_STR(name) "pgmR0BthEPTReal" #name
1794#define PGM_BTH_NAME_R0_EPT_PROT_STR(name) "pgmR0BthEPTProt" #name
1795#define PGM_BTH_NAME_R0_EPT_32BIT_STR(name) "pgmR0BthEPT32Bit" #name
1796#define PGM_BTH_NAME_R0_EPT_PAE_STR(name) "pgmR0BthEPTPAE" #name
1797#define PGM_BTH_NAME_R0_EPT_AMD64_STR(name) "pgmR0BthEPTAMD64" #name
1798
1799#define PGM_BTH_DECL(type, name) PGM_CTX_DECL(type) PGM_BTH_NAME(name)
1800#define PGM_BTH_PFN(name, pVM) ((pVM)->pgm.s.PGM_CTX(pfn,Bth##name))
1801/** @} */
1802
1803/**
1804 * Data for each paging mode.
1805 */
1806typedef struct PGMMODEDATA
1807{
1808 /** The guest mode type. */
1809 uint32_t uGstType;
1810 /** The shadow mode type. */
1811 uint32_t uShwType;
1812
1813 /** @name Function pointers for Shadow paging.
1814 * @{
1815 */
1816 DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1817 DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVM pVM));
1818 DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1819 DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1820
1821 DECLGCCALLBACKMEMBER(int, pfnGCShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1822 DECLGCCALLBACKMEMBER(int, pfnGCShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1823
1824 DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
1825 DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1826 /** @} */
1827
1828 /** @name Function pointers for Guest paging.
1829 * @{
1830 */
1831 DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1832 DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVM pVM));
1833 DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1834 DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1835 DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1836 DECLR3CALLBACKMEMBER(int, pfnR3GstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1837 DECLR3CALLBACKMEMBER(int, pfnR3GstUnmonitorCR3,(PVM pVM));
1838 DECLR3CALLBACKMEMBER(int, pfnR3GstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1839 DECLR3CALLBACKMEMBER(int, pfnR3GstUnmapCR3,(PVM pVM));
1840 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnR3GstWriteHandlerCR3;
1841 R3PTRTYPE(const char *) pszR3GstWriteHandlerCR3;
1842 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnR3GstPAEWriteHandlerCR3;
1843 R3PTRTYPE(const char *) pszR3GstPAEWriteHandlerCR3;
1844
1845 DECLGCCALLBACKMEMBER(int, pfnGCGstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1846 DECLGCCALLBACKMEMBER(int, pfnGCGstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1847 DECLGCCALLBACKMEMBER(int, pfnGCGstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1848 DECLGCCALLBACKMEMBER(int, pfnGCGstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1849 DECLGCCALLBACKMEMBER(int, pfnGCGstUnmonitorCR3,(PVM pVM));
1850 DECLGCCALLBACKMEMBER(int, pfnGCGstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1851 DECLGCCALLBACKMEMBER(int, pfnGCGstUnmapCR3,(PVM pVM));
1852 RCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnGCGstWriteHandlerCR3;
1853 RCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnGCGstPAEWriteHandlerCR3;
1854
1855 DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
1856 DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
1857 DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
1858 DECLR0CALLBACKMEMBER(int, pfnR0GstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1859 DECLR0CALLBACKMEMBER(int, pfnR0GstUnmonitorCR3,(PVM pVM));
1860 DECLR0CALLBACKMEMBER(int, pfnR0GstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
1861 DECLR0CALLBACKMEMBER(int, pfnR0GstUnmapCR3,(PVM pVM));
1862 R0PTRTYPE(PFNPGMGCPHYSHANDLER) pfnR0GstWriteHandlerCR3;
1863 R0PTRTYPE(PFNPGMGCPHYSHANDLER) pfnR0GstPAEWriteHandlerCR3;
1864 /** @} */
1865
1866 /** @name Function pointers for Both Shadow and Guest paging.
1867 * @{
1868 */
1869 DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVM pVM, RTGCUINTPTR offDelta));
1870 DECLR3CALLBACKMEMBER(int, pfnR3BthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1871 DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1872 DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVM pVM, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
1873 DECLR3CALLBACKMEMBER(int, pfnR3BthSyncPage,(PVM pVM, X86PDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1874 DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1875 DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1876#ifdef VBOX_STRICT
1877 DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1878#endif
1879
1880 DECLGCCALLBACKMEMBER(int, pfnGCBthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1881 DECLGCCALLBACKMEMBER(int, pfnGCBthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1882 DECLGCCALLBACKMEMBER(int, pfnGCBthSyncCR3,(PVM pVM, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
1883 DECLGCCALLBACKMEMBER(int, pfnGCBthSyncPage,(PVM pVM, X86PDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1884 DECLGCCALLBACKMEMBER(int, pfnGCBthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1885 DECLGCCALLBACKMEMBER(int, pfnGCBthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1886#ifdef VBOX_STRICT
1887 DECLGCCALLBACKMEMBER(unsigned, pfnGCBthAssertCR3,(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1888#endif
1889
1890 DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
1891 DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
1892 DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVM pVM, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
1893 DECLR0CALLBACKMEMBER(int, pfnR0BthSyncPage,(PVM pVM, X86PDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
1894 DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
1895 DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
1896#ifdef VBOX_STRICT
1897 DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
1898#endif
1899 /** @} */
1900} PGMMODEDATA, *PPGMMODEDATA;
1901
1902
1903
1904/**
1905 * Converts a PGM pointer into a VM pointer.
1906 * @returns Pointer to the VM structure the PGM is part of.
1907 * @param pPGM Pointer to PGM instance data.
1908 */
1909#define PGM2VM(pPGM) ( (PVM)((char*)pPGM - pPGM->offVM) )
1910
1911/**
1912 * PGM Data (part of VM)
1913 */
1914typedef struct PGM
1915{
1916 /** Offset to the VM structure. */
1917 RTINT offVM;
1918
1919 /*
1920 * This will be redefined at least two more times before we're done, I'm sure.
1921 * The current code is only to get on with the coding.
1922 * - 2004-06-10: initial version, bird.
1923 * - 2004-07-02: 1st time, bird.
1924 * - 2004-10-18: 2nd time, bird.
1925 * - 2005-07-xx: 3rd time, bird.
1926 */
1927
1928 /** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
1929 RCPTRTYPE(PX86PTE) paDynPageMap32BitPTEsGC;
1930 /** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
1931 RCPTRTYPE(PX86PTEPAE) paDynPageMapPaePTEsGC;
1932
1933 /** The host paging mode. (This is what SUPLib reports.) */
1934 SUPPAGINGMODE enmHostMode;
1935 /** The shadow paging mode. */
1936 PGMMODE enmShadowMode;
1937 /** The guest paging mode. */
1938 PGMMODE enmGuestMode;
1939
1940 /** The current physical address representing in the guest CR3 register. */
1941 RTGCPHYS GCPhysCR3;
1942 /** Pointer to the 5 page CR3 content mapping.
1943 * The first page is always the CR3 (in some form) while the 4 other pages
1944 * are used of the PDs in PAE mode. */
1945 RTGCPTR GCPtrCR3Mapping;
1946#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
1947 uint32_t u32Alignment;
1948#endif
1949 /** The physical address of the currently monitored guest CR3 page.
1950 * When this value is NIL_RTGCPHYS no page is being monitored. */
1951 RTGCPHYS GCPhysGstCR3Monitored;
1952
1953 /** @name 32-bit Guest Paging.
1954 * @{ */
1955 /** The guest's page directory, HC pointer. */
1956 R3R0PTRTYPE(PX86PD) pGuestPDHC;
1957 /** The guest's page directory, static GC mapping. */
1958 RCPTRTYPE(PX86PD) pGuestPDGC;
1959 /** @} */
1960
1961 /** @name PAE Guest Paging.
1962 * @{ */
1963 /** The guest's page directory pointer table, static GC mapping. */
1964 RCPTRTYPE(PX86PDPT) pGstPaePDPTGC;
1965 /** The guest's page directory pointer table, HC pointer. */
1966 R3R0PTRTYPE(PX86PDPT) pGstPaePDPTHC;
1967 /** The guest's page directories, HC pointers.
1968 * These are individual pointers and don't have to be adjecent.
1969 * These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
1970 R3R0PTRTYPE(PX86PDPAE) apGstPaePDsHC[4];
1971 /** The guest's page directories, static GC mapping.
1972 * Unlike the HC array the first entry can be accessed as a 2048 entry PD.
1973 * These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
1974 RCPTRTYPE(PX86PDPAE) apGstPaePDsGC[4];
1975 /** The physical addresses of the guest page directories (PAE) pointed to by apGstPagePDsHC/GC. */
1976 RTGCPHYS aGCPhysGstPaePDs[4];
1977 /** The physical addresses of the monitored guest page directories (PAE). */
1978 RTGCPHYS aGCPhysGstPaePDsMonitored[4];
1979 /** @} */
1980
1981 /** @name AMD64 Guest Paging.
1982 * @{ */
1983 /** The guest's page directory pointer table, HC pointer. */
1984 R3R0PTRTYPE(PX86PML4) pGstPaePML4HC;
1985 /** @} */
1986
1987 /** @name 32-bit Shadow Paging
1988 * @{ */
1989 /** The 32-Bit PD - HC Ptr. */
1990 R3R0PTRTYPE(PX86PD) pHC32BitPD;
1991 /** The 32-Bit PD - GC Ptr. */
1992 RCPTRTYPE(PX86PD) pGC32BitPD;
1993#if HC_ARCH_BITS == 64
1994 uint32_t u32Padding1; /**< alignment padding. */
1995#endif
1996 /** The Physical Address (HC) of the 32-Bit PD. */
1997 RTHCPHYS HCPhys32BitPD;
1998 /** @} */
1999
2000 /** @name PAE Shadow Paging
2001 * @{ */
2002 /** The four PDs for the low 4GB - HC Ptr.
2003 * Even though these are 4 pointers, what they point at is a single table.
2004 * Thus, it's possible to walk the 2048 entries starting where apHCPaePDs[0] points. */
2005 R3R0PTRTYPE(PX86PDPAE) apHCPaePDs[4];
2006 /** The four PDs for the low 4GB - GC Ptr.
2007 * Same kind of mapping as apHCPaePDs. */
2008 RCPTRTYPE(PX86PDPAE) apGCPaePDs[4];
2009 /** The Physical Address (HC) of the four PDs for the low 4GB.
2010 * These are *NOT* 4 contiguous pages. */
2011 RTHCPHYS aHCPhysPaePDs[4];
2012 /** The PAE PDP - HC Ptr. */
2013 R3R0PTRTYPE(PX86PDPT) pHCPaePDPT;
2014 /** The Physical Address (HC) of the PAE PDPT. */
2015 RTHCPHYS HCPhysPaePDPT;
2016 /** The PAE PDPT - GC Ptr. */
2017 RCPTRTYPE(PX86PDPT) pGCPaePDPT;
2018 /** @} */
2019
2020 /** @name AMD64 Shadow Paging
2021 * Extends PAE Paging.
2022 * @{ */
2023#if HC_ARCH_BITS == 64
2024 RTRCPTR alignment5; /**< structure size alignment. */
2025#endif
2026 /** The Page Map Level 4 table - HC Ptr. */
2027 R3R0PTRTYPE(PX86PML4) pHCPaePML4;
2028 /** The Physical Address (HC) of the Page Map Level 4 table. */
2029 RTHCPHYS HCPhysPaePML4;
2030 /** The pgm pool page descriptor for the current active CR3. */
2031 R3R0PTRTYPE(PPGMPOOLPAGE) pHCShwAmd64CR3;
2032
2033 /** @}*/
2034
2035 /** @name Nested Shadow Paging
2036 * @{ */
2037 /** Root table; format depends on the host paging mode (AMD-V) or EPT */
2038 R3R0PTRTYPE(void *) pHCNestedRoot;
2039 /** The Physical Address (HC) of the nested paging root. */
2040 RTHCPHYS HCPhysNestedRoot;
2041
2042 /** @name Function pointers for Shadow paging.
2043 * @{
2044 */
2045 DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVM pVM, RTGCUINTPTR offDelta));
2046 DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVM pVM));
2047 DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2048 DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2049
2050 DECLGCCALLBACKMEMBER(int, pfnGCShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2051 DECLGCCALLBACKMEMBER(int, pfnGCShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2052
2053 DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2054 DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2055
2056 /** @} */
2057
2058 /** @name Function pointers for Guest paging.
2059 * @{
2060 */
2061 DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVM pVM, RTGCUINTPTR offDelta));
2062 DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVM pVM));
2063 DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2064 DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2065 DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
2066 DECLR3CALLBACKMEMBER(int, pfnR3GstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
2067 DECLR3CALLBACKMEMBER(int, pfnR3GstUnmonitorCR3,(PVM pVM));
2068 DECLR3CALLBACKMEMBER(int, pfnR3GstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
2069 DECLR3CALLBACKMEMBER(int, pfnR3GstUnmapCR3,(PVM pVM));
2070 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnR3GstWriteHandlerCR3;
2071 R3PTRTYPE(const char *) pszR3GstWriteHandlerCR3;
2072 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnR3GstPAEWriteHandlerCR3;
2073 R3PTRTYPE(const char *) pszR3GstPAEWriteHandlerCR3;
2074
2075 DECLGCCALLBACKMEMBER(int, pfnGCGstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2076 DECLGCCALLBACKMEMBER(int, pfnGCGstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2077 DECLGCCALLBACKMEMBER(int, pfnGCGstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
2078 DECLGCCALLBACKMEMBER(int, pfnGCGstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
2079 DECLGCCALLBACKMEMBER(int, pfnGCGstUnmonitorCR3,(PVM pVM));
2080 DECLGCCALLBACKMEMBER(int, pfnGCGstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
2081 DECLGCCALLBACKMEMBER(int, pfnGCGstUnmapCR3,(PVM pVM));
2082 RCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnGCGstWriteHandlerCR3;
2083 RCPTRTYPE(PFNPGMGCPHYSHANDLER) pfnGCGstPAEWriteHandlerCR3;
2084#if HC_ARCH_BITS == 64
2085 RTRCPTR alignment3; /**< structure size alignment. */
2086#endif
2087
2088 DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVM pVM, RTGCUINTPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2089 DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVM pVM, RTGCUINTPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2090 DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVM pVM, RTGCUINTPTR GCPtr, PX86PDEPAE pPde));
2091 DECLR0CALLBACKMEMBER(int, pfnR0GstMonitorCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
2092 DECLR0CALLBACKMEMBER(int, pfnR0GstUnmonitorCR3,(PVM pVM));
2093 DECLR0CALLBACKMEMBER(int, pfnR0GstMapCR3,(PVM pVM, RTGCPHYS GCPhysCR3));
2094 DECLR0CALLBACKMEMBER(int, pfnR0GstUnmapCR3,(PVM pVM));
2095 R0PTRTYPE(PFNPGMGCPHYSHANDLER) pfnR0GstWriteHandlerCR3;
2096 R0PTRTYPE(PFNPGMGCPHYSHANDLER) pfnR0GstPAEWriteHandlerCR3;
2097 /** @} */
2098
2099 /** @name Function pointers for Both Shadow and Guest paging.
2100 * @{
2101 */
2102 DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVM pVM, RTGCUINTPTR offDelta));
2103 DECLR3CALLBACKMEMBER(int, pfnR3BthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
2104 DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
2105 DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVM pVM, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2106 DECLR3CALLBACKMEMBER(int, pfnR3BthSyncPage,(PVM pVM, X86PDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
2107 DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
2108 DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
2109 DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
2110
2111 DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
2112 DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
2113 DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVM pVM, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2114 DECLR0CALLBACKMEMBER(int, pfnR0BthSyncPage,(PVM pVM, X86PDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
2115 DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
2116 DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
2117 DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
2118
2119 DECLGCCALLBACKMEMBER(int, pfnGCBthTrap0eHandler,(PVM pVM, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault));
2120 DECLGCCALLBACKMEMBER(int, pfnGCBthInvalidatePage,(PVM pVM, RTGCPTR GCPtrPage));
2121 DECLGCCALLBACKMEMBER(int, pfnGCBthSyncCR3,(PVM pVM, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2122 DECLGCCALLBACKMEMBER(int, pfnGCBthSyncPage,(PVM pVM, X86PDE PdeSrc, RTGCUINTPTR GCPtrPage, unsigned cPages, unsigned uError));
2123 DECLGCCALLBACKMEMBER(int, pfnGCBthPrefetchPage,(PVM pVM, RTGCUINTPTR GCPtrPage));
2124 DECLGCCALLBACKMEMBER(int, pfnGCBthVerifyAccessSyncPage,(PVM pVM, RTGCUINTPTR GCPtrPage, unsigned fFlags, unsigned uError));
2125 DECLGCCALLBACKMEMBER(unsigned, pfnGCBthAssertCR3,(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCUINTPTR GCPtr, RTGCUINTPTR cb));
2126#if HC_ARCH_BITS == 64
2127 RTRCPTR alignment2; /**< structure size alignment. */
2128#endif
2129 /** @} */
2130
2131 /** Pointer to SHW+GST mode data (function pointers).
2132 * The index into this table is made up from */
2133 R3PTRTYPE(PPGMMODEDATA) paModeData;
2134
2135 /** Pointer to the list of RAM ranges (Phys GC -> Phys HC conversion) - for R3.
2136 * This is sorted by physical address and contains no overlapping ranges. */
2137 R3PTRTYPE(PPGMRAMRANGE) pRamRangesR3;
2138 /** R0 pointer corresponding to PGM::pRamRangesR3. */
2139 R0PTRTYPE(PPGMRAMRANGE) pRamRangesR0;
2140 /** GC pointer corresponding to PGM::pRamRangesR3. */
2141 RCPTRTYPE(PPGMRAMRANGE) pRamRangesGC;
2142 /** The configured RAM size. */
2143 RTUINT cbRamSize;
2144
2145 /** Pointer to the list of ROM ranges - for R3.
2146 * This is sorted by physical address and contains no overlapping ranges. */
2147 R3PTRTYPE(PPGMROMRANGE) pRomRangesR3;
2148 /** R0 pointer corresponding to PGM::pRomRangesR3. */
2149 R0PTRTYPE(PPGMRAMRANGE) pRomRangesR0;
2150 /** GC pointer corresponding to PGM::pRomRangesR3. */
2151 RCPTRTYPE(PPGMRAMRANGE) pRomRangesGC;
2152 /** Alignment padding. */
2153 RTRCPTR GCPtrPadding2;
2154
2155 /** Pointer to the list of MMIO2 ranges - for R3.
2156 * Registration order. */
2157 R3PTRTYPE(PPGMMMIO2RANGE) pMmio2RangesR3;
2158
2159 /** PGM offset based trees - HC Ptr. */
2160 R3R0PTRTYPE(PPGMTREES) pTreesHC;
2161 /** PGM offset based trees - GC Ptr. */
2162 RCPTRTYPE(PPGMTREES) pTreesGC;
2163
2164 /** Linked list of GC mappings - for GC.
2165 * The list is sorted ascending on address.
2166 */
2167 RCPTRTYPE(PPGMMAPPING) pMappingsGC;
2168 /** Linked list of GC mappings - for HC.
2169 * The list is sorted ascending on address.
2170 */
2171 R3PTRTYPE(PPGMMAPPING) pMappingsR3;
2172 /** Linked list of GC mappings - for R0.
2173 * The list is sorted ascending on address.
2174 */
2175 R0PTRTYPE(PPGMMAPPING) pMappingsR0;
2176
2177 /** If set no conflict checks are required. (boolean) */
2178 bool fMappingsFixed;
2179 /** If set, then no mappings are put into the shadow page table. (boolean) */
2180 bool fDisableMappings;
2181 /** Size of fixed mapping */
2182 uint32_t cbMappingFixed;
2183 /** Base address (GC) of fixed mapping */
2184 RTGCPTR GCPtrMappingFixed;
2185#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
2186 uint32_t u32Padding0; /**< alignment padding. */
2187#endif
2188
2189
2190 /** @name Intermediate Context
2191 * @{ */
2192 /** Pointer to the intermediate page directory - Normal. */
2193 R3PTRTYPE(PX86PD) pInterPD;
2194 /** Pointer to the intermedate page tables - Normal.
2195 * There are two page tables, one for the identity mapping and one for
2196 * the host context mapping (of the core code). */
2197 R3PTRTYPE(PX86PT) apInterPTs[2];
2198 /** Pointer to the intermedate page tables - PAE. */
2199 R3PTRTYPE(PX86PTPAE) apInterPaePTs[2];
2200 /** Pointer to the intermedate page directory - PAE. */
2201 R3PTRTYPE(PX86PDPAE) apInterPaePDs[4];
2202 /** Pointer to the intermedate page directory - PAE. */
2203 R3PTRTYPE(PX86PDPT) pInterPaePDPT;
2204 /** Pointer to the intermedate page-map level 4 - AMD64. */
2205 R3PTRTYPE(PX86PML4) pInterPaePML4;
2206 /** Pointer to the intermedate page directory - AMD64. */
2207 R3PTRTYPE(PX86PDPT) pInterPaePDPT64;
2208 /** The Physical Address (HC) of the intermediate Page Directory - Normal. */
2209 RTHCPHYS HCPhysInterPD;
2210 /** The Physical Address (HC) of the intermediate Page Directory Pointer Table - PAE. */
2211 RTHCPHYS HCPhysInterPaePDPT;
2212 /** The Physical Address (HC) of the intermediate Page Map Level 4 table - AMD64. */
2213 RTHCPHYS HCPhysInterPaePML4;
2214 /** @} */
2215
2216 /** Base address of the dynamic page mapping area.
2217 * The array is MM_HYPER_DYNAMIC_SIZE bytes big.
2218 */
2219 RCPTRTYPE(uint8_t *) pbDynPageMapBaseGC;
2220 /** The index of the last entry used in the dynamic page mapping area. */
2221 RTUINT iDynPageMapLast;
2222 /** Cache containing the last entries in the dynamic page mapping area.
2223 * The cache size is covering half of the mapping area. */
2224 RTHCPHYS aHCPhysDynPageMapCache[MM_HYPER_DYNAMIC_SIZE >> (PAGE_SHIFT + 1)];
2225
2226 /** A20 gate mask.
2227 * Our current approach to A20 emulation is to let REM do it and don't bother
2228 * anywhere else. The interesting Guests will be operating with it enabled anyway.
2229 * But whould need arrise, we'll subject physical addresses to this mask. */
2230 RTGCPHYS GCPhysA20Mask;
2231 /** A20 gate state - boolean! */
2232 RTUINT fA20Enabled;
2233
2234 /** What needs syncing (PGM_SYNC_*).
2235 * This is used to queue operations for PGMSyncCR3, PGMInvalidatePage,
2236 * PGMFlushTLB, and PGMR3Load. */
2237 RTUINT fSyncFlags;
2238
2239 /** PGM critical section.
2240 * This protects the physical & virtual access handlers, ram ranges,
2241 * and the page flag updating (some of it anyway).
2242 */
2243 PDMCRITSECT CritSect;
2244
2245 /** Shadow Page Pool - HC Ptr. */
2246 R3R0PTRTYPE(PPGMPOOL) pPoolHC;
2247 /** Shadow Page Pool - GC Ptr. */
2248 RCPTRTYPE(PPGMPOOL) pPoolGC;
2249
2250 /** We're not in a state which permits writes to guest memory.
2251 * (Only used in strict builds.) */
2252 bool fNoMorePhysWrites;
2253
2254 /** Flush the cache on the next access. */
2255 bool fPhysCacheFlushPending;
2256/** @todo r=bird: Fix member names!*/
2257 /** PGMPhysRead cache */
2258 PGMPHYSCACHE pgmphysreadcache;
2259 /** PGMPhysWrite cache */
2260 PGMPHYSCACHE pgmphyswritecache;
2261
2262 /**
2263 * Data associated with managing the ring-3 mappings of the allocation chunks.
2264 */
2265 struct
2266 {
2267 /** The chunk tree, ordered by chunk id. */
2268 R3R0PTRTYPE(PAVLU32NODECORE) pTree;
2269 /** The chunk mapping TLB. */
2270 PGMCHUNKR3MAPTLB Tlb;
2271 /** The number of mapped chunks. */
2272 uint32_t c;
2273 /** The maximum number of mapped chunks.
2274 * @cfgm PGM/MaxRing3Chunks */
2275 uint32_t cMax;
2276 /** The chunk age tree, ordered by ageing sequence number. */
2277 R3PTRTYPE(PAVLLU32NODECORE) pAgeTree;
2278 /** The current time. */
2279 uint32_t iNow;
2280 /** Number of pgmR3PhysChunkFindUnmapCandidate calls left to the next ageing. */
2281 uint32_t AgeingCountdown;
2282 } ChunkR3Map;
2283
2284 /**
2285 * The page mapping TLB for ring-3 and (for the time being) ring-0.
2286 */
2287 PGMPAGER3MAPTLB PhysTlbHC;
2288
2289 /** @name The zero page.
2290 * @{ */
2291 /** The host physical address of the zero page. */
2292 RTHCPHYS HCPhysZeroPg;
2293 /** The ring-3 mapping of the zero page. */
2294 RTR3PTR pvZeroPgR3;
2295 /** The ring-0 mapping of the zero page. */
2296 RTR0PTR pvZeroPgR0;
2297 /** The GC mapping of the zero page. */
2298 RTGCPTR pvZeroPgGC;
2299#if GC_ARCH_BITS != 32
2300 uint32_t u32ZeroAlignment; /**< Alignment padding. */
2301#endif
2302 /** @}*/
2303
2304 /** The number of handy pages. */
2305 uint32_t cHandyPages;
2306 /**
2307 * Array of handy pages.
2308 *
2309 * This array is used in a two way communication between pgmPhysAllocPage
2310 * and GMMR0AllocateHandyPages, with PGMR3PhysAllocateHandyPages serving as
2311 * an intermediary.
2312 *
2313 * The size of this array is important, see pgmPhysEnsureHandyPage for details.
2314 * (The current size of 32 pages, means 128 KB of handy memory.)
2315 */
2316 GMMPAGEDESC aHandyPages[32];
2317
2318 /** @name Release Statistics
2319 * @{ */
2320 uint32_t cAllPages; /**< The total number of pages. (Should be Private + Shared + Zero.) */
2321 uint32_t cPrivatePages; /**< The number of private pages. */
2322 uint32_t cSharedPages; /**< The number of shared pages. */
2323 uint32_t cZeroPages; /**< The number of zero backed pages. */
2324 /** The number of times the guest has switched mode since last reset or statistics reset. */
2325 STAMCOUNTER cGuestModeChanges;
2326 /** @} */
2327
2328#ifdef VBOX_WITH_STATISTICS
2329 /** GC: Which statistic this \#PF should be attributed to. */
2330 RCPTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionGC;
2331 RTRCPTR padding0;
2332 /** HC: Which statistic this \#PF should be attributed to. */
2333 R3R0PTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionHC;
2334 RTHCPTR padding1;
2335 STAMPROFILE StatGCTrap0e; /**< GC: PGMGCTrap0eHandler() profiling. */
2336 STAMPROFILE StatTrap0eCSAM; /**< Profiling of the Trap0eHandler body when the cause is CSAM. */
2337 STAMPROFILE StatTrap0eDirtyAndAccessedBits; /**< Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation. */
2338 STAMPROFILE StatTrap0eGuestTrap; /**< Profiling of the Trap0eHandler body when the cause is a guest trap. */
2339 STAMPROFILE StatTrap0eHndPhys; /**< Profiling of the Trap0eHandler body when the cause is a physical handler. */
2340 STAMPROFILE StatTrap0eHndVirt; /**< Profiling of the Trap0eHandler body when the cause is a virtual handler. */
2341 STAMPROFILE StatTrap0eHndUnhandled; /**< Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page. */
2342 STAMPROFILE StatTrap0eMisc; /**< Profiling of the Trap0eHandler body when the cause is not known. */
2343 STAMPROFILE StatTrap0eOutOfSync; /**< Profiling of the Trap0eHandler body when the cause is an out-of-sync page. */
2344 STAMPROFILE StatTrap0eOutOfSyncHndPhys; /**< Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page. */
2345 STAMPROFILE StatTrap0eOutOfSyncHndVirt; /**< Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page. */
2346 STAMPROFILE StatTrap0eOutOfSyncObsHnd; /**< Profiling of the Trap0eHandler body when the cause is an obsolete handler page. */
2347 STAMPROFILE StatTrap0eSyncPT; /**< Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT. */
2348
2349 STAMCOUNTER StatTrap0eMapHandler; /**< Number of traps due to access handlers in mappings. */
2350 STAMCOUNTER StatGCTrap0eConflicts; /**< GC: The number of times \#PF was caused by an undetected conflict. */
2351
2352 STAMCOUNTER StatGCTrap0eUSNotPresentRead;
2353 STAMCOUNTER StatGCTrap0eUSNotPresentWrite;
2354 STAMCOUNTER StatGCTrap0eUSWrite;
2355 STAMCOUNTER StatGCTrap0eUSReserved;
2356 STAMCOUNTER StatGCTrap0eUSNXE;
2357 STAMCOUNTER StatGCTrap0eUSRead;
2358
2359 STAMCOUNTER StatGCTrap0eSVNotPresentRead;
2360 STAMCOUNTER StatGCTrap0eSVNotPresentWrite;
2361 STAMCOUNTER StatGCTrap0eSVWrite;
2362 STAMCOUNTER StatGCTrap0eSVReserved;
2363 STAMCOUNTER StatGCTrap0eSNXE;
2364
2365 STAMCOUNTER StatTrap0eWPEmulGC;
2366 STAMCOUNTER StatTrap0eWPEmulR3;
2367
2368 STAMCOUNTER StatGCTrap0eUnhandled;
2369 STAMCOUNTER StatGCTrap0eMap;
2370
2371 /** GC: PGMSyncPT() profiling. */
2372 STAMPROFILE StatGCSyncPT;
2373 /** GC: The number of times PGMSyncPT() needed to allocate page tables. */
2374 STAMCOUNTER StatGCSyncPTAlloc;
2375 /** GC: The number of times PGMSyncPT() detected conflicts. */
2376 STAMCOUNTER StatGCSyncPTConflict;
2377 /** GC: The number of times PGMSyncPT() failed. */
2378 STAMCOUNTER StatGCSyncPTFailed;
2379 /** GC: PGMGCInvalidatePage() profiling. */
2380 STAMPROFILE StatGCInvalidatePage;
2381 /** GC: The number of times PGMGCInvalidatePage() was called for a 4KB page. */
2382 STAMCOUNTER StatGCInvalidatePage4KBPages;
2383 /** GC: The number of times PGMGCInvalidatePage() was called for a 4MB page. */
2384 STAMCOUNTER StatGCInvalidatePage4MBPages;
2385 /** GC: The number of times PGMGCInvalidatePage() skipped a 4MB page. */
2386 STAMCOUNTER StatGCInvalidatePage4MBPagesSkip;
2387 /** GC: The number of times PGMGCInvalidatePage() was called for a not accessed page directory. */
2388 STAMCOUNTER StatGCInvalidatePagePDNAs;
2389 /** GC: The number of times PGMGCInvalidatePage() was called for a not present page directory. */
2390 STAMCOUNTER StatGCInvalidatePagePDNPs;
2391 /** GC: The number of times PGMGCInvalidatePage() was called for a page directory containing mappings (no conflict). */
2392 STAMCOUNTER StatGCInvalidatePagePDMappings;
2393 /** GC: The number of times PGMGCInvalidatePage() was called for an out of sync page directory. */
2394 STAMCOUNTER StatGCInvalidatePagePDOutOfSync;
2395 /** HC: The number of times PGMGCInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
2396 STAMCOUNTER StatGCInvalidatePageSkipped;
2397 /** GC: The number of times user page is out of sync was detected in GC. */
2398 STAMCOUNTER StatGCPageOutOfSyncUser;
2399 /** GC: The number of times supervisor page is out of sync was detected in GC. */
2400 STAMCOUNTER StatGCPageOutOfSyncSupervisor;
2401 /** GC: The number of dynamic page mapping cache hits */
2402 STAMCOUNTER StatDynMapCacheMisses;
2403 /** GC: The number of dynamic page mapping cache misses */
2404 STAMCOUNTER StatDynMapCacheHits;
2405 /** GC: The number of times pgmGCGuestPDWriteHandler() was successfully called. */
2406 STAMCOUNTER StatGCGuestCR3WriteHandled;
2407 /** GC: The number of times pgmGCGuestPDWriteHandler() was called and we had to fall back to the recompiler. */
2408 STAMCOUNTER StatGCGuestCR3WriteUnhandled;
2409 /** GC: The number of times pgmGCGuestPDWriteHandler() was called and a conflict was detected. */
2410 STAMCOUNTER StatGCGuestCR3WriteConflict;
2411 /** GC: Number of out-of-sync handled pages. */
2412 STAMCOUNTER StatHandlersOutOfSync;
2413 /** GC: Number of traps due to physical access handlers. */
2414 STAMCOUNTER StatHandlersPhysical;
2415 /** GC: Number of traps due to virtual access handlers. */
2416 STAMCOUNTER StatHandlersVirtual;
2417 /** GC: Number of traps due to virtual access handlers found by physical address. */
2418 STAMCOUNTER StatHandlersVirtualByPhys;
2419 /** GC: Number of traps due to virtual access handlers found by virtual address (without proper physical flags). */
2420 STAMCOUNTER StatHandlersVirtualUnmarked;
2421 /** GC: Number of traps due to access outside range of monitored page(s). */
2422 STAMCOUNTER StatHandlersUnhandled;
2423 /** GC: Number of traps due to access to invalid physical memory. */
2424 STAMCOUNTER StatHandlersInvalid;
2425
2426 /** GC: The number of times pgmGCGuestROMWriteHandler() was successfully called. */
2427 STAMCOUNTER StatGCGuestROMWriteHandled;
2428 /** GC: The number of times pgmGCGuestROMWriteHandler() was called and we had to fall back to the recompiler */
2429 STAMCOUNTER StatGCGuestROMWriteUnhandled;
2430
2431 /** HC: PGMR3InvalidatePage() profiling. */
2432 STAMPROFILE StatHCInvalidatePage;
2433 /** HC: The number of times PGMR3InvalidatePage() was called for a 4KB page. */
2434 STAMCOUNTER StatHCInvalidatePage4KBPages;
2435 /** HC: The number of times PGMR3InvalidatePage() was called for a 4MB page. */
2436 STAMCOUNTER StatHCInvalidatePage4MBPages;
2437 /** HC: The number of times PGMR3InvalidatePage() skipped a 4MB page. */
2438 STAMCOUNTER StatHCInvalidatePage4MBPagesSkip;
2439 /** HC: The number of times PGMR3InvalidatePage() was called for a not accessed page directory. */
2440 STAMCOUNTER StatHCInvalidatePagePDNAs;
2441 /** HC: The number of times PGMR3InvalidatePage() was called for a not present page directory. */
2442 STAMCOUNTER StatHCInvalidatePagePDNPs;
2443 /** HC: The number of times PGMR3InvalidatePage() was called for a page directory containing mappings (no conflict). */
2444 STAMCOUNTER StatHCInvalidatePagePDMappings;
2445 /** HC: The number of times PGMGCInvalidatePage() was called for an out of sync page directory. */
2446 STAMCOUNTER StatHCInvalidatePagePDOutOfSync;
2447 /** HC: The number of times PGMR3InvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
2448 STAMCOUNTER StatHCInvalidatePageSkipped;
2449 /** HC: PGMR3SyncPT() profiling. */
2450 STAMPROFILE StatHCSyncPT;
2451 /** HC: pgmr3SyncPTResolveConflict() profiling (includes the entire relocation). */
2452 STAMPROFILE StatHCResolveConflict;
2453 /** HC: Number of times PGMR3CheckMappingConflicts() detected a conflict. */
2454 STAMCOUNTER StatHCDetectedConflicts;
2455 /** HC: The total number of times pgmHCGuestPDWriteHandler() was called. */
2456 STAMCOUNTER StatHCGuestPDWrite;
2457 /** HC: The number of times pgmHCGuestPDWriteHandler() detected a conflict */
2458 STAMCOUNTER StatHCGuestPDWriteConflict;
2459
2460 /** HC: The number of pages marked not present for accessed bit emulation. */
2461 STAMCOUNTER StatHCAccessedPage;
2462 /** HC: The number of pages marked read-only for dirty bit tracking. */
2463 STAMCOUNTER StatHCDirtyPage;
2464 /** HC: The number of pages marked read-only for dirty bit tracking. */
2465 STAMCOUNTER StatHCDirtyPageBig;
2466 /** HC: The number of traps generated for dirty bit tracking. */
2467 STAMCOUNTER StatHCDirtyPageTrap;
2468 /** HC: The number of pages already dirty or readonly. */
2469 STAMCOUNTER StatHCDirtyPageSkipped;
2470
2471 /** GC: The number of pages marked not present for accessed bit emulation. */
2472 STAMCOUNTER StatGCAccessedPage;
2473 /** GC: The number of pages marked read-only for dirty bit tracking. */
2474 STAMCOUNTER StatGCDirtyPage;
2475 /** GC: The number of pages marked read-only for dirty bit tracking. */
2476 STAMCOUNTER StatGCDirtyPageBig;
2477 /** GC: The number of traps generated for dirty bit tracking. */
2478 STAMCOUNTER StatGCDirtyPageTrap;
2479 /** GC: The number of pages already dirty or readonly. */
2480 STAMCOUNTER StatGCDirtyPageSkipped;
2481 /** GC: The number of pages marked dirty because of write accesses. */
2482 STAMCOUNTER StatGCDirtiedPage;
2483 /** GC: The number of pages already marked dirty because of write accesses. */
2484 STAMCOUNTER StatGCPageAlreadyDirty;
2485 /** GC: The number of real pages faults during dirty bit tracking. */
2486 STAMCOUNTER StatGCDirtyTrackRealPF;
2487
2488 /** GC: Profiling of the PGMTrackDirtyBit() body */
2489 STAMPROFILE StatGCDirtyBitTracking;
2490 /** HC: Profiling of the PGMTrackDirtyBit() body */
2491 STAMPROFILE StatHCDirtyBitTracking;
2492
2493 /** GC: Profiling of the PGMGstModifyPage() body */
2494 STAMPROFILE StatGCGstModifyPage;
2495 /** HC: Profiling of the PGMGstModifyPage() body */
2496 STAMPROFILE StatHCGstModifyPage;
2497
2498 /** GC: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
2499 STAMCOUNTER StatGCSyncPagePDNAs;
2500 /** GC: The number of time we've encountered an out-of-sync PD in SyncPage. */
2501 STAMCOUNTER StatGCSyncPagePDOutOfSync;
2502 /** HC: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
2503 STAMCOUNTER StatHCSyncPagePDNAs;
2504 /** HC: The number of time we've encountered an out-of-sync PD in SyncPage. */
2505 STAMCOUNTER StatHCSyncPagePDOutOfSync;
2506
2507 STAMCOUNTER StatSynPT4kGC;
2508 STAMCOUNTER StatSynPT4kHC;
2509 STAMCOUNTER StatSynPT4MGC;
2510 STAMCOUNTER StatSynPT4MHC;
2511
2512 /** Profiling of the PGMFlushTLB() body. */
2513 STAMPROFILE StatFlushTLB;
2514 /** The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) */
2515 STAMCOUNTER StatFlushTLBNewCR3;
2516 /** The number of times PGMFlushTLB was called with a new CR3, global. (switch) */
2517 STAMCOUNTER StatFlushTLBNewCR3Global;
2518 /** The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) */
2519 STAMCOUNTER StatFlushTLBSameCR3;
2520 /** The number of times PGMFlushTLB was called with the same CR3, global. (flush) */
2521 STAMCOUNTER StatFlushTLBSameCR3Global;
2522
2523 STAMPROFILE StatGCSyncCR3; /**< GC: PGMSyncCR3() profiling. */
2524 STAMPROFILE StatGCSyncCR3Handlers; /**< GC: Profiling of the PGMSyncCR3() update handler section. */
2525 STAMPROFILE StatGCSyncCR3HandlerVirtualReset; /**< GC: Profiling of the virtual handler resets. */
2526 STAMPROFILE StatGCSyncCR3HandlerVirtualUpdate; /**< GC: Profiling of the virtual handler updates. */
2527 STAMCOUNTER StatGCSyncCR3Global; /**< GC: The number of global CR3 syncs. */
2528 STAMCOUNTER StatGCSyncCR3NotGlobal; /**< GC: The number of non-global CR3 syncs. */
2529 STAMCOUNTER StatGCSyncCR3DstFreed; /**< GC: The number of times we've had to free a shadow entry. */
2530 STAMCOUNTER StatGCSyncCR3DstFreedSrcNP; /**< GC: The number of times we've had to free a shadow entry for which the source entry was not present. */
2531 STAMCOUNTER StatGCSyncCR3DstNotPresent; /**< GC: The number of times we've encountered a not present shadow entry for a present guest entry. */
2532 STAMCOUNTER StatGCSyncCR3DstSkippedGlobalPD; /**< GC: The number of times a global page directory wasn't flushed. */
2533 STAMCOUNTER StatGCSyncCR3DstSkippedGlobalPT; /**< GC: The number of times a page table with only global entries wasn't flushed. */
2534 STAMCOUNTER StatGCSyncCR3DstCacheHit; /**< GC: The number of times we got some kind of cache hit on a page table. */
2535
2536 STAMPROFILE StatHCSyncCR3; /**< HC: PGMSyncCR3() profiling. */
2537 STAMPROFILE StatHCSyncCR3Handlers; /**< HC: Profiling of the PGMSyncCR3() update handler section. */
2538 STAMPROFILE StatHCSyncCR3HandlerVirtualReset; /**< HC: Profiling of the virtual handler resets. */
2539 STAMPROFILE StatHCSyncCR3HandlerVirtualUpdate; /**< HC: Profiling of the virtual handler updates. */
2540 STAMCOUNTER StatHCSyncCR3Global; /**< HC: The number of global CR3 syncs. */
2541 STAMCOUNTER StatHCSyncCR3NotGlobal; /**< HC: The number of non-global CR3 syncs. */
2542 STAMCOUNTER StatHCSyncCR3DstFreed; /**< HC: The number of times we've had to free a shadow entry. */
2543 STAMCOUNTER StatHCSyncCR3DstFreedSrcNP; /**< HC: The number of times we've had to free a shadow entry for which the source entry was not present. */
2544 STAMCOUNTER StatHCSyncCR3DstNotPresent; /**< HC: The number of times we've encountered a not present shadow entry for a present guest entry. */
2545 STAMCOUNTER StatHCSyncCR3DstSkippedGlobalPD; /**< HC: The number of times a global page directory wasn't flushed. */
2546 STAMCOUNTER StatHCSyncCR3DstSkippedGlobalPT; /**< HC: The number of times a page table with only global entries wasn't flushed. */
2547 STAMCOUNTER StatHCSyncCR3DstCacheHit; /**< HC: The number of times we got some kind of cache hit on a page table. */
2548
2549 /** GC: Profiling of pgmHandlerVirtualFindByPhysAddr. */
2550 STAMPROFILE StatVirtHandleSearchByPhysGC;
2551 /** HC: Profiling of pgmHandlerVirtualFindByPhysAddr. */
2552 STAMPROFILE StatVirtHandleSearchByPhysHC;
2553 /** HC: The number of times PGMR3HandlerPhysicalReset is called. */
2554 STAMCOUNTER StatHandlePhysicalReset;
2555
2556 STAMPROFILE StatCheckPageFault;
2557 STAMPROFILE StatLazySyncPT;
2558 STAMPROFILE StatMapping;
2559 STAMPROFILE StatOutOfSync;
2560 STAMPROFILE StatHandlers;
2561 STAMPROFILE StatEIPHandlers;
2562 STAMPROFILE StatHCPrefetch;
2563
2564# ifdef PGMPOOL_WITH_GCPHYS_TRACKING
2565 /** The number of first time shadowings. */
2566 STAMCOUNTER StatTrackVirgin;
2567 /** The number of times switching to cRef2, i.e. the page is being shadowed by two PTs. */
2568 STAMCOUNTER StatTrackAliased;
2569 /** The number of times we're tracking using cRef2. */
2570 STAMCOUNTER StatTrackAliasedMany;
2571 /** The number of times we're hitting pages which has overflowed cRef2. */
2572 STAMCOUNTER StatTrackAliasedLots;
2573 /** The number of times the extent list grows to long. */
2574 STAMCOUNTER StatTrackOverflows;
2575 /** Profiling of SyncPageWorkerTrackDeref (expensive). */
2576 STAMPROFILE StatTrackDeref;
2577# endif
2578
2579 /** Ring-3/0 page mapper TLB hits. */
2580 STAMCOUNTER StatPageHCMapTlbHits;
2581 /** Ring-3/0 page mapper TLB misses. */
2582 STAMCOUNTER StatPageHCMapTlbMisses;
2583 /** Ring-3/0 chunk mapper TLB hits. */
2584 STAMCOUNTER StatChunkR3MapTlbHits;
2585 /** Ring-3/0 chunk mapper TLB misses. */
2586 STAMCOUNTER StatChunkR3MapTlbMisses;
2587 /** Times a shared page has been replaced by a private one. */
2588 STAMCOUNTER StatPageReplaceShared;
2589 /** Times the zero page has been replaced by a private one. */
2590 STAMCOUNTER StatPageReplaceZero;
2591 /** The number of times we've executed GMMR3AllocateHandyPages. */
2592 STAMCOUNTER StatPageHandyAllocs;
2593
2594 /** Allocated mbs of guest ram */
2595 STAMCOUNTER StatDynRamTotal;
2596 /** Nr of pgmr3PhysGrowRange calls. */
2597 STAMCOUNTER StatDynRamGrow;
2598
2599 STAMCOUNTER StatGCTrap0ePD[X86_PG_ENTRIES];
2600 STAMCOUNTER StatGCSyncPtPD[X86_PG_ENTRIES];
2601 STAMCOUNTER StatGCSyncPagePD[X86_PG_ENTRIES];
2602#endif
2603} PGM, *PPGM;
2604
2605
2606/** @name PGM::fSyncFlags Flags
2607 * @{
2608 */
2609/** Updates the virtual access handler state bit in PGMPAGE. */
2610#define PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL RT_BIT(0)
2611/** Always sync CR3. */
2612#define PGM_SYNC_ALWAYS RT_BIT(1)
2613/** Check monitoring on next CR3 (re)load and invalidate page. */
2614#define PGM_SYNC_MONITOR_CR3 RT_BIT(2)
2615/** Clear the page pool (a light weight flush). */
2616#define PGM_SYNC_CLEAR_PGM_POOL RT_BIT(8)
2617/** @} */
2618
2619
2620__BEGIN_DECLS
2621
2622int pgmLock(PVM pVM);
2623void pgmUnlock(PVM pVM);
2624
2625PGMGCDECL(int) pgmGCGuestPDWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, void *pvFault, RTGCPHYS GCPhysFault, void *pvUser);
2626PGMDECL(int) pgmPhysRomWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, void *pvFault, RTGCPHYS GCPhysFault, void *pvUser);
2627
2628int pgmR3SyncPTResolveConflict(PVM pVM, PPGMMAPPING pMapping, PX86PD pPDSrc, RTGCPTR GCPtrOldMapping);
2629int pgmR3SyncPTResolveConflictPAE(PVM pVM, PPGMMAPPING pMapping, RTGCPTR GCPtrOldMapping);
2630PPGMMAPPING pgmGetMapping(PVM pVM, RTGCPTR GCPtr);
2631void pgmR3MapRelocate(PVM pVM, PPGMMAPPING pMapping, RTGCPTR GCPtrOldMapping, RTGCPTR GCPtrNewMapping);
2632DECLCALLBACK(void) pgmR3MapInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
2633
2634void pgmR3HandlerPhysicalUpdateAll(PVM pVM);
2635int pgmHandlerVirtualFindByPhysAddr(PVM pVM, RTGCPHYS GCPhys, PPGMVIRTHANDLER *ppVirt, unsigned *piPage);
2636DECLCALLBACK(int) pgmHandlerVirtualResetOne(PAVLROGCPTRNODECORE pNode, void *pvUser);
2637#if defined(VBOX_STRICT) || defined(LOG_ENABLED)
2638void pgmHandlerVirtualDumpPhysPages(PVM pVM);
2639#else
2640# define pgmHandlerVirtualDumpPhysPages(a) do { } while (0)
2641#endif
2642DECLCALLBACK(void) pgmR3InfoHandlers(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
2643
2644
2645void pgmPhysFreePage(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
2646int pgmPhysPageLoadIntoTlb(PPGM pPGM, RTGCPHYS GCPhys);
2647int pgmPhysPageMakeWritable(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
2648int pgmPhysPageMap(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, PPPGMPAGEMAP ppMap, void **ppv);
2649#ifdef IN_RING3
2650int pgmR3PhysChunkMap(PVM pVM, uint32_t idChunk, PPPGMCHUNKR3MAP ppChunk);
2651int pgmR3PhysRamReset(PVM pVM);
2652int pgmR3PhysRomReset(PVM pVM);
2653#ifndef VBOX_WITH_NEW_PHYS_CODE
2654int pgmr3PhysGrowRange(PVM pVM, RTGCPHYS GCPhys);
2655#endif
2656
2657int pgmR3PoolInit(PVM pVM);
2658void pgmR3PoolRelocate(PVM pVM);
2659void pgmR3PoolReset(PVM pVM);
2660
2661#endif /* IN_RING3 */
2662#ifdef IN_GC
2663void *pgmGCPoolMapPage(PVM pVM, PPGMPOOLPAGE pPage);
2664#endif
2665int pgmPoolAlloc(PVM pVM, RTGCPHYS GCPhys, PGMPOOLKIND enmKind, uint16_t iUser, uint32_t iUserTable, PPPGMPOOLPAGE ppPage);
2666PPGMPOOLPAGE pgmPoolGetPageByHCPhys(PVM pVM, RTHCPHYS HCPhys);
2667void pgmPoolFree(PVM pVM, RTHCPHYS HCPhys, uint16_t iUser, uint32_t iUserTable);
2668void pgmPoolFreeByPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, uint16_t iUser, uint32_t iUserTable);
2669int pgmPoolFlushPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
2670void pgmPoolFlushAll(PVM pVM);
2671void pgmPoolClearAll(PVM pVM);
2672int pgmPoolSyncCR3(PVM pVM);
2673void pgmPoolTrackFlushGCPhysPT(PVM pVM, PPGMPAGE pPhysPage, uint16_t iShw, uint16_t cRefs);
2674void pgmPoolTrackFlushGCPhysPTs(PVM pVM, PPGMPAGE pPhysPage, uint16_t iPhysExt);
2675int pgmPoolTrackFlushGCPhysPTsSlow(PVM pVM, PPGMPAGE pPhysPage);
2676PPGMPOOLPHYSEXT pgmPoolTrackPhysExtAlloc(PVM pVM, uint16_t *piPhysExt);
2677void pgmPoolTrackPhysExtFree(PVM pVM, uint16_t iPhysExt);
2678void pgmPoolTrackPhysExtFreeList(PVM pVM, uint16_t iPhysExt);
2679uint16_t pgmPoolTrackPhysExtAddref(PVM pVM, uint16_t u16, uint16_t iShwPT);
2680void pgmPoolTrackPhysExtDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPoolPage, PPGMPAGE pPhysPage);
2681#ifdef PGMPOOL_WITH_MONITORING
2682# ifdef IN_RING3
2683void pgmPoolMonitorChainChanging(PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTGCPHYS GCPhysFault, RTHCPTR pvAddress, PDISCPUSTATE pCpu);
2684# else
2685void pgmPoolMonitorChainChanging(PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTGCPHYS GCPhysFault, RTGCPTR pvAddress, PDISCPUSTATE pCpu);
2686# endif
2687int pgmPoolMonitorChainFlush(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
2688void pgmPoolMonitorModifiedInsert(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
2689void pgmPoolMonitorModifiedClearAll(PVM pVM);
2690int pgmPoolMonitorMonitorCR3(PPGMPOOL pPool, uint16_t idxRoot, RTGCPHYS GCPhysCR3);
2691int pgmPoolMonitorUnmonitorCR3(PPGMPOOL pPool, uint16_t idxRoot);
2692#endif
2693
2694__END_DECLS
2695
2696
2697/**
2698 * Gets the PGMRAMRANGE structure for a guest page.
2699 *
2700 * @returns Pointer to the RAM range on success.
2701 * @returns NULL on a VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS condition.
2702 *
2703 * @param pPGM PGM handle.
2704 * @param GCPhys The GC physical address.
2705 */
2706DECLINLINE(PPGMRAMRANGE) pgmPhysGetRange(PPGM pPGM, RTGCPHYS GCPhys)
2707{
2708 /*
2709 * Optimize for the first range.
2710 */
2711 PPGMRAMRANGE pRam = CTXALLSUFF(pPGM->pRamRanges);
2712 RTGCPHYS off = GCPhys - pRam->GCPhys;
2713 if (RT_UNLIKELY(off >= pRam->cb))
2714 {
2715 do
2716 {
2717 pRam = CTXALLSUFF(pRam->pNext);
2718 if (RT_UNLIKELY(!pRam))
2719 break;
2720 off = GCPhys - pRam->GCPhys;
2721 } while (off >= pRam->cb);
2722 }
2723 return pRam;
2724}
2725
2726
2727/**
2728 * Gets the PGMPAGE structure for a guest page.
2729 *
2730 * @returns Pointer to the page on success.
2731 * @returns NULL on a VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS condition.
2732 *
2733 * @param pPGM PGM handle.
2734 * @param GCPhys The GC physical address.
2735 */
2736DECLINLINE(PPGMPAGE) pgmPhysGetPage(PPGM pPGM, RTGCPHYS GCPhys)
2737{
2738 /*
2739 * Optimize for the first range.
2740 */
2741 PPGMRAMRANGE pRam = CTXALLSUFF(pPGM->pRamRanges);
2742 RTGCPHYS off = GCPhys - pRam->GCPhys;
2743 if (RT_UNLIKELY(off >= pRam->cb))
2744 {
2745 do
2746 {
2747 pRam = CTXALLSUFF(pRam->pNext);
2748 if (RT_UNLIKELY(!pRam))
2749 return NULL;
2750 off = GCPhys - pRam->GCPhys;
2751 } while (off >= pRam->cb);
2752 }
2753 return &pRam->aPages[off >> PAGE_SHIFT];
2754}
2755
2756
2757/**
2758 * Gets the PGMPAGE structure for a guest page.
2759 *
2760 * Old Phys code: Will make sure the page is present.
2761 *
2762 * @returns VBox status code.
2763 * @retval VINF_SUCCESS and a valid *ppPage on success.
2764 * @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS if the address isn't valid.
2765 *
2766 * @param pPGM PGM handle.
2767 * @param GCPhys The GC physical address.
2768 * @param ppPage Where to store the page poitner on success.
2769 */
2770DECLINLINE(int) pgmPhysGetPageEx(PPGM pPGM, RTGCPHYS GCPhys, PPPGMPAGE ppPage)
2771{
2772 /*
2773 * Optimize for the first range.
2774 */
2775 PPGMRAMRANGE pRam = CTXALLSUFF(pPGM->pRamRanges);
2776 RTGCPHYS off = GCPhys - pRam->GCPhys;
2777 if (RT_UNLIKELY(off >= pRam->cb))
2778 {
2779 do
2780 {
2781 pRam = CTXALLSUFF(pRam->pNext);
2782 if (RT_UNLIKELY(!pRam))
2783 {
2784 *ppPage = NULL; /* avoid incorrect and very annoying GCC warnings */
2785 return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2786 }
2787 off = GCPhys - pRam->GCPhys;
2788 } while (off >= pRam->cb);
2789 }
2790 *ppPage = &pRam->aPages[off >> PAGE_SHIFT];
2791#ifndef VBOX_WITH_NEW_PHYS_CODE
2792
2793 /*
2794 * Make sure it's present.
2795 */
2796 if (RT_UNLIKELY( !PGM_PAGE_GET_HCPHYS(*ppPage)
2797 && (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)))
2798 {
2799#ifdef IN_RING3
2800 int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2801#else
2802 int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2803#endif
2804 if (VBOX_FAILURE(rc))
2805 {
2806 *ppPage = NULL; /* avoid incorrect and very annoying GCC warnings */
2807 return rc;
2808 }
2809 Assert(rc == VINF_SUCCESS);
2810 }
2811#endif
2812 return VINF_SUCCESS;
2813}
2814
2815
2816
2817
2818/**
2819 * Gets the PGMPAGE structure for a guest page.
2820 *
2821 * Old Phys code: Will make sure the page is present.
2822 *
2823 * @returns VBox status code.
2824 * @retval VINF_SUCCESS and a valid *ppPage on success.
2825 * @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS if the address isn't valid.
2826 *
2827 * @param pPGM PGM handle.
2828 * @param GCPhys The GC physical address.
2829 * @param ppPage Where to store the page poitner on success.
2830 * @param ppRamHint Where to read and store the ram list hint.
2831 * The caller initializes this to NULL before the call.
2832 */
2833DECLINLINE(int) pgmPhysGetPageWithHintEx(PPGM pPGM, RTGCPHYS GCPhys, PPPGMPAGE ppPage, PPGMRAMRANGE *ppRamHint)
2834{
2835 RTGCPHYS off;
2836 PPGMRAMRANGE pRam = *ppRamHint;
2837 if ( !pRam
2838 || RT_UNLIKELY((off = GCPhys - pRam->GCPhys) >= pRam->cb))
2839 {
2840 pRam = CTXALLSUFF(pPGM->pRamRanges);
2841 off = GCPhys - pRam->GCPhys;
2842 if (RT_UNLIKELY(off >= pRam->cb))
2843 {
2844 do
2845 {
2846 pRam = CTXALLSUFF(pRam->pNext);
2847 if (RT_UNLIKELY(!pRam))
2848 {
2849 *ppPage = NULL; /* Kill the incorrect and extremely annoying GCC warnings. */
2850 return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2851 }
2852 off = GCPhys - pRam->GCPhys;
2853 } while (off >= pRam->cb);
2854 }
2855 *ppRamHint = pRam;
2856 }
2857 *ppPage = &pRam->aPages[off >> PAGE_SHIFT];
2858#ifndef VBOX_WITH_NEW_PHYS_CODE
2859
2860 /*
2861 * Make sure it's present.
2862 */
2863 if (RT_UNLIKELY( !PGM_PAGE_GET_HCPHYS(*ppPage)
2864 && (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)))
2865 {
2866#ifdef IN_RING3
2867 int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2868#else
2869 int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2870#endif
2871 if (VBOX_FAILURE(rc))
2872 {
2873 *ppPage = NULL; /* Shut up annoying smart ass. */
2874 return rc;
2875 }
2876 Assert(rc == VINF_SUCCESS);
2877 }
2878#endif
2879 return VINF_SUCCESS;
2880}
2881
2882
2883/**
2884 * Gets the PGMPAGE structure for a guest page together with the PGMRAMRANGE.
2885 *
2886 * @returns Pointer to the page on success.
2887 * @returns NULL on a VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS condition.
2888 *
2889 * @param pPGM PGM handle.
2890 * @param GCPhys The GC physical address.
2891 * @param ppRam Where to store the pointer to the PGMRAMRANGE.
2892 */
2893DECLINLINE(PPGMPAGE) pgmPhysGetPageAndRange(PPGM pPGM, RTGCPHYS GCPhys, PPGMRAMRANGE *ppRam)
2894{
2895 /*
2896 * Optimize for the first range.
2897 */
2898 PPGMRAMRANGE pRam = CTXALLSUFF(pPGM->pRamRanges);
2899 RTGCPHYS off = GCPhys - pRam->GCPhys;
2900 if (RT_UNLIKELY(off >= pRam->cb))
2901 {
2902 do
2903 {
2904 pRam = CTXALLSUFF(pRam->pNext);
2905 if (RT_UNLIKELY(!pRam))
2906 return NULL;
2907 off = GCPhys - pRam->GCPhys;
2908 } while (off >= pRam->cb);
2909 }
2910 *ppRam = pRam;
2911 return &pRam->aPages[off >> PAGE_SHIFT];
2912}
2913
2914
2915
2916
2917/**
2918 * Gets the PGMPAGE structure for a guest page together with the PGMRAMRANGE.
2919 *
2920 * @returns Pointer to the page on success.
2921 * @returns NULL on a VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS condition.
2922 *
2923 * @param pPGM PGM handle.
2924 * @param GCPhys The GC physical address.
2925 * @param ppPage Where to store the pointer to the PGMPAGE structure.
2926 * @param ppRam Where to store the pointer to the PGMRAMRANGE structure.
2927 */
2928DECLINLINE(int) pgmPhysGetPageAndRangeEx(PPGM pPGM, RTGCPHYS GCPhys, PPPGMPAGE ppPage, PPGMRAMRANGE *ppRam)
2929{
2930 /*
2931 * Optimize for the first range.
2932 */
2933 PPGMRAMRANGE pRam = CTXALLSUFF(pPGM->pRamRanges);
2934 RTGCPHYS off = GCPhys - pRam->GCPhys;
2935 if (RT_UNLIKELY(off >= pRam->cb))
2936 {
2937 do
2938 {
2939 pRam = CTXALLSUFF(pRam->pNext);
2940 if (RT_UNLIKELY(!pRam))
2941 {
2942 *ppRam = NULL; /* Shut up silly GCC warnings. */
2943 *ppPage = NULL; /* ditto */
2944 return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
2945 }
2946 off = GCPhys - pRam->GCPhys;
2947 } while (off >= pRam->cb);
2948 }
2949 *ppRam = pRam;
2950 *ppPage = &pRam->aPages[off >> PAGE_SHIFT];
2951#ifndef VBOX_WITH_NEW_PHYS_CODE
2952
2953 /*
2954 * Make sure it's present.
2955 */
2956 if (RT_UNLIKELY( !PGM_PAGE_GET_HCPHYS(*ppPage)
2957 && (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)))
2958 {
2959#ifdef IN_RING3
2960 int rc = pgmr3PhysGrowRange(PGM2VM(pPGM), GCPhys);
2961#else
2962 int rc = CTXALLMID(VMM, CallHost)(PGM2VM(pPGM), VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
2963#endif
2964 if (VBOX_FAILURE(rc))
2965 {
2966 *ppPage = NULL; /* Shut up silly GCC warnings. */
2967 *ppPage = NULL; /* ditto */
2968 return rc;
2969 }
2970 Assert(rc == VINF_SUCCESS);
2971
2972 }
2973#endif
2974 return VINF_SUCCESS;
2975}
2976
2977
2978/**
2979 * Convert GC Phys to HC Phys.
2980 *
2981 * @returns VBox status.
2982 * @param pPGM PGM handle.
2983 * @param GCPhys The GC physical address.
2984 * @param pHCPhys Where to store the corresponding HC physical address.
2985 *
2986 * @deprecated Doesn't deal with zero, shared or write monitored pages.
2987 * Avoid when writing new code!
2988 */
2989DECLINLINE(int) pgmRamGCPhys2HCPhys(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPHYS pHCPhys)
2990{
2991 PPGMPAGE pPage;
2992 int rc = pgmPhysGetPageEx(pPGM, GCPhys, &pPage);
2993 if (VBOX_FAILURE(rc))
2994 return rc;
2995 *pHCPhys = PGM_PAGE_GET_HCPHYS(pPage) | (GCPhys & PAGE_OFFSET_MASK);
2996 return VINF_SUCCESS;
2997}
2998
2999
3000#ifndef IN_GC
3001/**
3002 * Queries the Physical TLB entry for a physical guest page,
3003 * attemting to load the TLB entry if necessary.
3004 *
3005 * @returns VBox status code.
3006 * @retval VINF_SUCCESS on success
3007 * @retval VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS if it's not a valid physical address.
3008 * @param pPGM The PGM instance handle.
3009 * @param GCPhys The address of the guest page.
3010 * @param ppTlbe Where to store the pointer to the TLB entry.
3011 */
3012
3013DECLINLINE(int) pgmPhysPageQueryTlbe(PPGM pPGM, RTGCPHYS GCPhys, PPPGMPAGEMAPTLBE ppTlbe)
3014{
3015 int rc;
3016 PPGMPAGEMAPTLBE pTlbe = &pPGM->CTXSUFF(PhysTlb).aEntries[PGM_PAGEMAPTLB_IDX(GCPhys)];
3017 if (pTlbe->GCPhys == (GCPhys & X86_PTE_PAE_PG_MASK))
3018 {
3019 STAM_COUNTER_INC(&pPGM->CTXMID(StatPage,MapTlbHits));
3020 rc = VINF_SUCCESS;
3021 }
3022 else
3023 rc = pgmPhysPageLoadIntoTlb(pPGM, GCPhys);
3024 *ppTlbe = pTlbe;
3025 return rc;
3026}
3027#endif /* !IN_GC */
3028
3029
3030#ifndef VBOX_WITH_NEW_PHYS_CODE
3031/**
3032 * Convert GC Phys to HC Virt.
3033 *
3034 * @returns VBox status.
3035 * @param pPGM PGM handle.
3036 * @param GCPhys The GC physical address.
3037 * @param pHCPtr Where to store the corresponding HC virtual address.
3038 *
3039 * @deprecated This will be eliminated by PGMPhysGCPhys2CCPtr.
3040 */
3041DECLINLINE(int) pgmRamGCPhys2HCPtr(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPTR pHCPtr)
3042{
3043 PPGMRAMRANGE pRam;
3044 PPGMPAGE pPage;
3045 int rc = pgmPhysGetPageAndRangeEx(pPGM, GCPhys, &pPage, &pRam);
3046 if (VBOX_FAILURE(rc))
3047 {
3048 *pHCPtr = 0; /* Shut up silly GCC warnings. */
3049 return rc;
3050 }
3051 RTGCPHYS off = GCPhys - pRam->GCPhys;
3052
3053 if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
3054 {
3055 unsigned iChunk = off >> PGM_DYNAMIC_CHUNK_SHIFT;
3056 *pHCPtr = (RTHCPTR)((RTHCUINTPTR)CTXSUFF(pRam->pavHCChunk)[iChunk] + (off & PGM_DYNAMIC_CHUNK_OFFSET_MASK));
3057 return VINF_SUCCESS;
3058 }
3059 if (pRam->pvHC)
3060 {
3061 *pHCPtr = (RTHCPTR)((RTHCUINTPTR)pRam->pvHC + off);
3062 return VINF_SUCCESS;
3063 }
3064 *pHCPtr = 0; /* Shut up silly GCC warnings. */
3065 return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
3066}
3067#endif /* !VBOX_WITH_NEW_PHYS_CODE */
3068
3069
3070/**
3071 * Convert GC Phys to HC Virt.
3072 *
3073 * @returns VBox status.
3074 * @param PVM VM handle.
3075 * @param pRam Ram range
3076 * @param GCPhys The GC physical address.
3077 * @param pHCPtr Where to store the corresponding HC virtual address.
3078 *
3079 * @deprecated This will be eliminated. Don't use it.
3080 */
3081DECLINLINE(int) pgmRamGCPhys2HCPtrWithRange(PVM pVM, PPGMRAMRANGE pRam, RTGCPHYS GCPhys, PRTHCPTR pHCPtr)
3082{
3083 RTGCPHYS off = GCPhys - pRam->GCPhys;
3084 Assert(off < pRam->cb);
3085
3086 if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
3087 {
3088 unsigned idx = (off >> PGM_DYNAMIC_CHUNK_SHIFT);
3089 /* Physical chunk in dynamically allocated range not present? */
3090 if (RT_UNLIKELY(!CTXSUFF(pRam->pavHCChunk)[idx]))
3091 {
3092#ifdef IN_RING3
3093 int rc = pgmr3PhysGrowRange(pVM, GCPhys);
3094#else
3095 int rc = CTXALLMID(VMM, CallHost)(pVM, VMMCALLHOST_PGM_RAM_GROW_RANGE, GCPhys);
3096#endif
3097 if (rc != VINF_SUCCESS)
3098 {
3099 *pHCPtr = 0; /* GCC crap */
3100 return rc;
3101 }
3102 }
3103 *pHCPtr = (RTHCPTR)((RTHCUINTPTR)CTXSUFF(pRam->pavHCChunk)[idx] + (off & PGM_DYNAMIC_CHUNK_OFFSET_MASK));
3104 return VINF_SUCCESS;
3105 }
3106 if (pRam->pvHC)
3107 {
3108 *pHCPtr = (RTHCPTR)((RTHCUINTPTR)pRam->pvHC + off);
3109 return VINF_SUCCESS;
3110 }
3111 *pHCPtr = 0; /* GCC crap */
3112 return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
3113}
3114
3115
3116/**
3117 * Convert GC Phys to HC Virt and HC Phys.
3118 *
3119 * @returns VBox status.
3120 * @param pPGM PGM handle.
3121 * @param GCPhys The GC physical address.
3122 * @param pHCPtr Where to store the corresponding HC virtual address.
3123 * @param pHCPhys Where to store the HC Physical address and its flags.
3124 *
3125 * @deprecated Will go away or be changed. Only user is MapCR3. MapCR3 will have to do ring-3
3126 * and ring-0 locking of the CR3 in a lazy fashion I'm fear... or perhaps not. we'll see.
3127 */
3128DECLINLINE(int) pgmRamGCPhys2HCPtrAndHCPhysWithFlags(PPGM pPGM, RTGCPHYS GCPhys, PRTHCPTR pHCPtr, PRTHCPHYS pHCPhys)
3129{
3130 PPGMRAMRANGE pRam;
3131 PPGMPAGE pPage;
3132 int rc = pgmPhysGetPageAndRangeEx(pPGM, GCPhys, &pPage, &pRam);
3133 if (VBOX_FAILURE(rc))
3134 {
3135 *pHCPtr = 0; /* Shut up crappy GCC warnings */
3136 *pHCPhys = 0; /* ditto */
3137 return rc;
3138 }
3139 RTGCPHYS off = GCPhys - pRam->GCPhys;
3140
3141 *pHCPhys = pPage->HCPhys; /** @todo PAGE FLAGS */
3142 if (pRam->fFlags & MM_RAM_FLAGS_DYNAMIC_ALLOC)
3143 {
3144 unsigned idx = (off >> PGM_DYNAMIC_CHUNK_SHIFT);
3145 *pHCPtr = (RTHCPTR)((RTHCUINTPTR)CTXSUFF(pRam->pavHCChunk)[idx] + (off & PGM_DYNAMIC_CHUNK_OFFSET_MASK));
3146 return VINF_SUCCESS;
3147 }
3148 if (pRam->pvHC)
3149 {
3150 *pHCPtr = (RTHCPTR)((RTHCUINTPTR)pRam->pvHC + off);
3151 return VINF_SUCCESS;
3152 }
3153 *pHCPtr = 0;
3154 return VERR_PGM_INVALID_GC_PHYSICAL_ADDRESS;
3155}
3156
3157
3158/**
3159 * Clears flags associated with a RAM address.
3160 *
3161 * @returns VBox status code.
3162 * @param pPGM PGM handle.
3163 * @param GCPhys Guest context physical address.
3164 * @param fFlags fFlags to clear. (Bits 0-11.)
3165 */
3166DECLINLINE(int) pgmRamFlagsClearByGCPhys(PPGM pPGM, RTGCPHYS GCPhys, unsigned fFlags)
3167{
3168 PPGMPAGE pPage;
3169 int rc = pgmPhysGetPageEx(pPGM, GCPhys, &pPage);
3170 if (VBOX_FAILURE(rc))
3171 return rc;
3172
3173 fFlags &= ~X86_PTE_PAE_PG_MASK;
3174 pPage->HCPhys &= ~(RTHCPHYS)fFlags; /** @todo PAGE FLAGS */
3175 return VINF_SUCCESS;
3176}
3177
3178
3179/**
3180 * Clears flags associated with a RAM address.
3181 *
3182 * @returns VBox status code.
3183 * @param pPGM PGM handle.
3184 * @param GCPhys Guest context physical address.
3185 * @param fFlags fFlags to clear. (Bits 0-11.)
3186 * @param ppRamHint Where to read and store the ram list hint.
3187 * The caller initializes this to NULL before the call.
3188 */
3189DECLINLINE(int) pgmRamFlagsClearByGCPhysWithHint(PPGM pPGM, RTGCPHYS GCPhys, unsigned fFlags, PPGMRAMRANGE *ppRamHint)
3190{
3191 PPGMPAGE pPage;
3192 int rc = pgmPhysGetPageWithHintEx(pPGM, GCPhys, &pPage, ppRamHint);
3193 if (VBOX_FAILURE(rc))
3194 return rc;
3195
3196 fFlags &= ~X86_PTE_PAE_PG_MASK;
3197 pPage->HCPhys &= ~(RTHCPHYS)fFlags; /** @todo PAGE FLAGS */
3198 return VINF_SUCCESS;
3199}
3200
3201/**
3202 * Sets (bitwise OR) flags associated with a RAM address.
3203 *
3204 * @returns VBox status code.
3205 * @param pPGM PGM handle.
3206 * @param GCPhys Guest context physical address.
3207 * @param fFlags fFlags to set clear. (Bits 0-11.)
3208 */
3209DECLINLINE(int) pgmRamFlagsSetByGCPhys(PPGM pPGM, RTGCPHYS GCPhys, unsigned fFlags)
3210{
3211 PPGMPAGE pPage;
3212 int rc = pgmPhysGetPageEx(pPGM, GCPhys, &pPage);
3213 if (VBOX_FAILURE(rc))
3214 return rc;
3215
3216 fFlags &= ~X86_PTE_PAE_PG_MASK;
3217 pPage->HCPhys |= fFlags; /** @todo PAGE FLAGS */
3218 return VINF_SUCCESS;
3219}
3220
3221
3222/**
3223 * Sets (bitwise OR) flags associated with a RAM address.
3224 *
3225 * @returns VBox status code.
3226 * @param pPGM PGM handle.
3227 * @param GCPhys Guest context physical address.
3228 * @param fFlags fFlags to set clear. (Bits 0-11.)
3229 * @param ppRamHint Where to read and store the ram list hint.
3230 * The caller initializes this to NULL before the call.
3231 */
3232DECLINLINE(int) pgmRamFlagsSetByGCPhysWithHint(PPGM pPGM, RTGCPHYS GCPhys, unsigned fFlags, PPGMRAMRANGE *ppRamHint)
3233{
3234 PPGMPAGE pPage;
3235 int rc = pgmPhysGetPageWithHintEx(pPGM, GCPhys, &pPage, ppRamHint);
3236 if (VBOX_FAILURE(rc))
3237 return rc;
3238
3239 fFlags &= ~X86_PTE_PAE_PG_MASK;
3240 pPage->HCPhys |= fFlags; /** @todo PAGE FLAGS */
3241 return VINF_SUCCESS;
3242}
3243
3244
3245/**
3246 * Gets the page directory for the specified address.
3247 *
3248 * @returns Pointer to the page directory in question.
3249 * @returns NULL if the page directory is not present or on an invalid page.
3250 * @param pPGM Pointer to the PGM instance data.
3251 * @param GCPtr The address.
3252 */
3253DECLINLINE(PX86PDPAE) pgmGstGetPaePD(PPGM pPGM, RTGCUINTPTR GCPtr)
3254{
3255 const unsigned iPdPt = GCPtr >> X86_PDPT_SHIFT;
3256 if (CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].n.u1Present)
3257 {
3258 if ((CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u & X86_PDPE_PG_MASK) == pPGM->aGCPhysGstPaePDs[iPdPt])
3259 return CTXSUFF(pPGM->apGstPaePDs)[iPdPt];
3260
3261 /* cache is out-of-sync. */
3262 PX86PDPAE pPD;
3263 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u & X86_PDPE_PG_MASK, &pPD);
3264 if (VBOX_SUCCESS(rc))
3265 return pPD;
3266 AssertMsgFailed(("Impossible! rc=%d PDPE=%#llx\n", rc, CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u));
3267 /* returning NIL_RTGCPHYS is ok if we assume it's just an invalid page of some kind emulated as all 0s. */
3268 }
3269 return NULL;
3270}
3271
3272
3273/**
3274 * Gets the page directory entry for the specified address.
3275 *
3276 * @returns Pointer to the page directory entry in question.
3277 * @returns NULL if the page directory is not present or on an invalid page.
3278 * @param pPGM Pointer to the PGM instance data.
3279 * @param GCPtr The address.
3280 */
3281DECLINLINE(PX86PDEPAE) pgmGstGetPaePDEPtr(PPGM pPGM, RTGCUINTPTR GCPtr)
3282{
3283 const unsigned iPdPt = GCPtr >> X86_PDPT_SHIFT;
3284 if (CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].n.u1Present)
3285 {
3286 const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
3287 if ((CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u & X86_PDPE_PG_MASK) == pPGM->aGCPhysGstPaePDs[iPdPt])
3288 return &CTXSUFF(pPGM->apGstPaePDs)[iPdPt]->a[iPD];
3289
3290 /* The cache is out-of-sync. */
3291 PX86PDPAE pPD;
3292 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u & X86_PDPE_PG_MASK, &pPD);
3293 if (VBOX_SUCCESS(rc))
3294 return &pPD->a[iPD];
3295 AssertMsgFailed(("Impossible! rc=%Vrc PDPE=%RX64\n", rc, CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u));
3296 /* returning NIL_RTGCPHYS is ok if we assume it's just an invalid page or something which we'll emulate as all 0s. */
3297 }
3298 return NULL;
3299}
3300
3301
3302/**
3303 * Gets the page directory entry for the specified address.
3304 *
3305 * @returns The page directory entry in question.
3306 * @returns A non-present entry if the page directory is not present or on an invalid page.
3307 * @param pPGM Pointer to the PGM instance data.
3308 * @param GCPtr The address.
3309 */
3310DECLINLINE(uint64_t) pgmGstGetPaePDE(PPGM pPGM, RTGCUINTPTR GCPtr)
3311{
3312 const unsigned iPdPt = GCPtr >> X86_PDPT_SHIFT;
3313 if (CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].n.u1Present)
3314 {
3315 const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
3316 if ((CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u & X86_PDPE_PG_MASK) == pPGM->aGCPhysGstPaePDs[iPdPt])
3317 return CTXSUFF(pPGM->apGstPaePDs)[iPdPt]->a[iPD].u;
3318
3319 /* cache is out-of-sync. */
3320 PX86PDPAE pPD;
3321 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u & X86_PDPE_PG_MASK, &pPD);
3322 if (VBOX_SUCCESS(rc))
3323 return pPD->a[iPD].u;
3324 AssertMsgFailed(("Impossible! rc=%d PDPE=%#llx\n", rc, CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u));
3325 }
3326 return 0ULL;
3327}
3328
3329
3330/**
3331 * Gets the page directory pointer table entry for the specified address
3332 * and returns the index into the page directory
3333 *
3334 * @returns Pointer to the page directory in question.
3335 * @returns NULL if the page directory is not present or on an invalid page.
3336 * @param pPGM Pointer to the PGM instance data.
3337 * @param GCPtr The address.
3338 * @param piPD Receives the index into the returned page directory
3339 */
3340DECLINLINE(PX86PDPAE) pgmGstGetPaePDPtr(PPGM pPGM, RTGCUINTPTR GCPtr, unsigned *piPD)
3341{
3342 const unsigned iPdPt = GCPtr >> X86_PDPT_SHIFT;
3343 if (CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].n.u1Present)
3344 {
3345 const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
3346 if ((CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u & X86_PDPE_PG_MASK) == pPGM->aGCPhysGstPaePDs[iPdPt])
3347 {
3348 *piPD = iPD;
3349 return CTXSUFF(pPGM->apGstPaePDs)[iPdPt];
3350 }
3351
3352 /* cache is out-of-sync. */
3353 PX86PDPAE pPD;
3354 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u & X86_PDPE_PG_MASK, &pPD);
3355 if (VBOX_SUCCESS(rc))
3356 {
3357 *piPD = iPD;
3358 return pPD;
3359 }
3360 AssertMsgFailed(("Impossible! rc=%d PDPE=%#llx\n", rc, CTXSUFF(pPGM->pGstPaePDPT)->a[iPdPt].u));
3361 /* returning NIL_RTGCPHYS is ok if we assume it's just an invalid page of some kind emulated as all 0s. */
3362 }
3363 return NULL;
3364}
3365
3366#ifndef IN_GC
3367/**
3368 * Gets the page directory pointer entry for the specified address.
3369 *
3370 * @returns Pointer to the page directory pointer entry in question.
3371 * @returns NULL if the page directory is not present or on an invalid page.
3372 * @param pPGM Pointer to the PGM instance data.
3373 * @param GCPtr The address.
3374 * @param ppPml4e Page Map Level-4 Entry (out)
3375 */
3376DECLINLINE(PX86PDPE) pgmGstGetLongModePDPTPtr(PPGM pPGM, RTGCUINTPTR64 GCPtr, PX86PML4E *ppPml4e)
3377{
3378 const unsigned iPml4e = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
3379
3380 Assert(pPGM->pGstPaePML4HC);
3381 *ppPml4e = &pPGM->pGstPaePML4HC->a[iPml4e];
3382 if ((*ppPml4e)->n.u1Present)
3383 {
3384 PX86PDPT pPdpt;
3385 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), (*ppPml4e)->u & X86_PML4E_PG_MASK, &pPdpt);
3386 if (VBOX_FAILURE(rc))
3387 {
3388 AssertFailed();
3389 return NULL;
3390 }
3391 const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
3392 return &pPdpt->a[iPdPt];
3393 }
3394 return NULL;
3395}
3396
3397/**
3398 * Gets the page directory entry for the specified address.
3399 *
3400 * @returns The page directory entry in question.
3401 * @returns A non-present entry if the page directory is not present or on an invalid page.
3402 * @param pPGM Pointer to the PGM instance data.
3403 * @param GCPtr The address.
3404 * @param ppPml4e Page Map Level-4 Entry (out)
3405 * @param pPdpe Page directory pointer table entry (out)
3406 */
3407DECLINLINE(uint64_t) pgmGstGetLongModePDE(PPGM pPGM, RTGCUINTPTR64 GCPtr, PX86PML4E *ppPml4e, PX86PDPE pPdpe)
3408{
3409 const unsigned iPml4e = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
3410
3411 Assert(pPGM->pGstPaePML4HC);
3412 *ppPml4e = &pPGM->pGstPaePML4HC->a[iPml4e];
3413 if ((*ppPml4e)->n.u1Present)
3414 {
3415 PX86PDPT pPdptTemp;
3416 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), (*ppPml4e)->u & X86_PML4E_PG_MASK, &pPdptTemp);
3417 if (VBOX_FAILURE(rc))
3418 {
3419 AssertFailed();
3420 return 0ULL;
3421 }
3422
3423 const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
3424 *pPdpe = pPdptTemp->a[iPdPt];
3425 if (pPdpe->n.u1Present)
3426 {
3427 PX86PDPAE pPD;
3428
3429 rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), pPdpe->u & X86_PDPE_PG_MASK, &pPD);
3430 if (VBOX_FAILURE(rc))
3431 {
3432 AssertFailed();
3433 return 0ULL;
3434 }
3435 const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
3436 return pPD->a[iPD].u;
3437 }
3438 }
3439 return 0ULL;
3440}
3441
3442/**
3443 * Gets the page directory entry for the specified address.
3444 *
3445 * @returns The page directory entry in question.
3446 * @returns A non-present entry if the page directory is not present or on an invalid page.
3447 * @param pPGM Pointer to the PGM instance data.
3448 * @param GCPtr The address.
3449 */
3450DECLINLINE(uint64_t) pgmGstGetLongModePDE(PPGM pPGM, RTGCUINTPTR64 GCPtr)
3451{
3452 const unsigned iPml4e = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
3453
3454 Assert(pPGM->pGstPaePML4HC);
3455 if (pPGM->pGstPaePML4HC->a[iPml4e].n.u1Present)
3456 {
3457 PX86PDPT pPdptTemp;
3458 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), pPGM->pGstPaePML4HC->a[iPml4e].u & X86_PML4E_PG_MASK, &pPdptTemp);
3459 if (VBOX_FAILURE(rc))
3460 {
3461 AssertFailed();
3462 return 0ULL;
3463 }
3464
3465 const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
3466 if (pPdptTemp->a[iPdPt].n.u1Present)
3467 {
3468 PX86PDPAE pPD;
3469
3470 rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), pPdptTemp->a[iPdPt].u & X86_PDPE_PG_MASK, &pPD);
3471 if (VBOX_FAILURE(rc))
3472 {
3473 AssertFailed();
3474 return 0ULL;
3475 }
3476 const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
3477 return pPD->a[iPD].u;
3478 }
3479 }
3480 return 0ULL;
3481}
3482
3483/**
3484 * Gets the page directory entry for the specified address.
3485 *
3486 * @returns Pointer to the page directory entry in question.
3487 * @returns NULL if the page directory is not present or on an invalid page.
3488 * @param pPGM Pointer to the PGM instance data.
3489 * @param GCPtr The address.
3490 */
3491DECLINLINE(PX86PDEPAE) pgmGstGetLongModePDEPtr(PPGM pPGM, RTGCUINTPTR64 GCPtr)
3492{
3493 const unsigned iPml4e = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
3494
3495 Assert(pPGM->pGstPaePML4HC);
3496 if (pPGM->pGstPaePML4HC->a[iPml4e].n.u1Present)
3497 {
3498 PX86PDPT pPdptTemp;
3499 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), pPGM->pGstPaePML4HC->a[iPml4e].u & X86_PML4E_PG_MASK, &pPdptTemp);
3500 if (VBOX_FAILURE(rc))
3501 {
3502 AssertFailed();
3503 return NULL;
3504 }
3505
3506 const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
3507 if (pPdptTemp->a[iPdPt].n.u1Present)
3508 {
3509 PX86PDPAE pPD;
3510
3511 rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), pPdptTemp->a[iPdPt].u & X86_PDPE_PG_MASK, &pPD);
3512 if (VBOX_FAILURE(rc))
3513 {
3514 AssertFailed();
3515 return NULL;
3516 }
3517 const unsigned iPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
3518 return &pPD->a[iPD];
3519 }
3520 }
3521 return NULL;
3522}
3523
3524
3525/**
3526 * Gets the GUEST page directory pointer for the specified address.
3527 *
3528 * @returns The page directory in question.
3529 * @returns NULL if the page directory is not present or on an invalid page.
3530 * @param pPGM Pointer to the PGM instance data.
3531 * @param GCPtr The address.
3532 * @param ppPml4e Page Map Level-4 Entry (out)
3533 * @param pPdpe Page directory pointer table entry (out)
3534 * @param piPD Receives the index into the returned page directory
3535 */
3536DECLINLINE(PX86PDPAE) pgmGstGetLongModePDPtr(PPGM pPGM, RTGCUINTPTR64 GCPtr, PX86PML4E *ppPml4e, PX86PDPE pPdpe, unsigned *piPD)
3537{
3538 const unsigned iPml4e = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
3539
3540 Assert(pPGM->pGstPaePML4HC);
3541 *ppPml4e = &pPGM->pGstPaePML4HC->a[iPml4e];
3542 if ((*ppPml4e)->n.u1Present)
3543 {
3544 PX86PDPT pPdptTemp;
3545 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), (*ppPml4e)->u & X86_PML4E_PG_MASK, &pPdptTemp);
3546 if (VBOX_FAILURE(rc))
3547 {
3548 AssertFailed();
3549 return 0ULL;
3550 }
3551
3552 const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
3553 *pPdpe = pPdptTemp->a[iPdPt];
3554 if (pPdpe->n.u1Present)
3555 {
3556 PX86PDPAE pPD;
3557
3558 rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), pPdpe->u & X86_PDPE_PG_MASK, &pPD);
3559 if (VBOX_FAILURE(rc))
3560 {
3561 AssertFailed();
3562 return 0ULL;
3563 }
3564 *piPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
3565 return pPD;
3566 }
3567 }
3568 return 0ULL;
3569}
3570
3571/**
3572 * Gets the GUEST page directory pointer for the specified address.
3573 *
3574 * @returns The page directory in question.
3575 * @returns NULL if the page directory is not present or on an invalid page.
3576 * @param pPGM Pointer to the PGM instance data.
3577 * @param GCPtr The address.
3578 * @param piPD Receives the index into the returned page directory
3579 */
3580DECLINLINE(PX86PDPAE) pgmGstGetLongModePDPtr(PPGM pPGM, RTGCUINTPTR64 GCPtr, unsigned *piPD)
3581{
3582 PX86PML4E pPml4e;
3583 PX86PDPE pPdpe;
3584 const unsigned iPml4e = (GCPtr >> X86_PML4_SHIFT) & X86_PML4_MASK;
3585
3586 Assert(pPGM->pGstPaePML4HC);
3587 pPml4e = &pPGM->pGstPaePML4HC->a[iPml4e];
3588 if (pPml4e->n.u1Present)
3589 {
3590 PX86PDPT pPdptTemp;
3591 int rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), pPml4e->u & X86_PML4E_PG_MASK, &pPdptTemp);
3592 if (VBOX_FAILURE(rc))
3593 {
3594 AssertFailed();
3595 return 0ULL;
3596 }
3597
3598 const unsigned iPdPt = (GCPtr >> X86_PDPT_SHIFT) & X86_PDPT_MASK_AMD64;
3599 pPdpe = &pPdptTemp->a[iPdPt];
3600 if (pPdpe->n.u1Present)
3601 {
3602 PX86PDPAE pPD;
3603
3604 rc = PGM_GCPHYS_2_PTR(PGM2VM(pPGM), pPdpe->u & X86_PDPE_PG_MASK, &pPD);
3605 if (VBOX_FAILURE(rc))
3606 {
3607 AssertFailed();
3608 return 0ULL;
3609 }
3610 *piPD = (GCPtr >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
3611 return pPD;
3612 }
3613 }
3614 return 0ULL;
3615}
3616
3617#endif /* !IN_GC */
3618
3619/**
3620 * Checks if any of the specified page flags are set for the given page.
3621 *
3622 * @returns true if any of the flags are set.
3623 * @returns false if all the flags are clear.
3624 * @param pPGM PGM handle.
3625 * @param GCPhys The GC physical address.
3626 * @param fFlags The flags to check for.
3627 */
3628DECLINLINE(bool) pgmRamTestFlags(PPGM pPGM, RTGCPHYS GCPhys, uint64_t fFlags)
3629{
3630 PPGMPAGE pPage = pgmPhysGetPage(pPGM, GCPhys);
3631 return pPage
3632 && (pPage->HCPhys & fFlags) != 0; /** @todo PAGE FLAGS */
3633}
3634
3635
3636/**
3637 * Gets the page state for a physical handler.
3638 *
3639 * @returns The physical handler page state.
3640 * @param pCur The physical handler in question.
3641 */
3642DECLINLINE(unsigned) pgmHandlerPhysicalCalcState(PPGMPHYSHANDLER pCur)
3643{
3644 switch (pCur->enmType)
3645 {
3646 case PGMPHYSHANDLERTYPE_PHYSICAL_WRITE:
3647 return PGM_PAGE_HNDL_PHYS_STATE_WRITE;
3648
3649 case PGMPHYSHANDLERTYPE_MMIO:
3650 case PGMPHYSHANDLERTYPE_PHYSICAL_ALL:
3651 return PGM_PAGE_HNDL_PHYS_STATE_ALL;
3652
3653 default:
3654 AssertFatalMsgFailed(("Invalid type %d\n", pCur->enmType));
3655 }
3656}
3657
3658
3659/**
3660 * Gets the page state for a virtual handler.
3661 *
3662 * @returns The virtual handler page state.
3663 * @param pCur The virtual handler in question.
3664 * @remarks This should never be used on a hypervisor access handler.
3665 */
3666DECLINLINE(unsigned) pgmHandlerVirtualCalcState(PPGMVIRTHANDLER pCur)
3667{
3668 switch (pCur->enmType)
3669 {
3670 case PGMVIRTHANDLERTYPE_WRITE:
3671 return PGM_PAGE_HNDL_VIRT_STATE_WRITE;
3672 case PGMVIRTHANDLERTYPE_ALL:
3673 return PGM_PAGE_HNDL_VIRT_STATE_ALL;
3674 default:
3675 AssertFatalMsgFailed(("Invalid type %d\n", pCur->enmType));
3676 }
3677}
3678
3679
3680/**
3681 * Clears one physical page of a virtual handler
3682 *
3683 * @param pPGM Pointer to the PGM instance.
3684 * @param pCur Virtual handler structure
3685 * @param iPage Physical page index
3686 *
3687 * @remark Only used when PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL is being set, so no
3688 * need to care about other handlers in the same page.
3689 */
3690DECLINLINE(void) pgmHandlerVirtualClearPage(PPGM pPGM, PPGMVIRTHANDLER pCur, unsigned iPage)
3691{
3692 const PPGMPHYS2VIRTHANDLER pPhys2Virt = &pCur->aPhysToVirt[iPage];
3693
3694 /*
3695 * Remove the node from the tree (it's supposed to be in the tree if we get here!).
3696 */
3697#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
3698 AssertReleaseMsg(pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_IN_TREE,
3699 ("pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3700 pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias));
3701#endif
3702 if (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_IS_HEAD)
3703 {
3704 /* We're the head of the alias chain. */
3705 PPGMPHYS2VIRTHANDLER pRemove = (PPGMPHYS2VIRTHANDLER)RTAvlroGCPhysRemove(&pPGM->CTXSUFF(pTrees)->PhysToVirtHandlers, pPhys2Virt->Core.Key); NOREF(pRemove);
3706#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
3707 AssertReleaseMsg(pRemove != NULL,
3708 ("pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3709 pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias));
3710 AssertReleaseMsg(pRemove == pPhys2Virt,
3711 ("wanted: pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
3712 " got: pRemove=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3713 pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias,
3714 pRemove, pRemove->Core.Key, pRemove->Core.KeyLast, pRemove->offVirtHandler, pRemove->offNextAlias));
3715#endif
3716 if (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
3717 {
3718 /* Insert the next list in the alias chain into the tree. */
3719 PPGMPHYS2VIRTHANDLER pNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPhys2Virt + (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
3720#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
3721 AssertReleaseMsg(pNext->offNextAlias & PGMPHYS2VIRTHANDLER_IN_TREE,
3722 ("pNext=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
3723 pNext, pNext->Core.Key, pNext->Core.KeyLast, pNext->offVirtHandler, pNext->offNextAlias));
3724#endif
3725 pNext->offNextAlias |= PGMPHYS2VIRTHANDLER_IS_HEAD;
3726 bool fRc = RTAvlroGCPhysInsert(&pPGM->CTXSUFF(pTrees)->PhysToVirtHandlers, &pNext->Core);
3727 AssertRelease(fRc);
3728 }
3729 }
3730 else
3731 {
3732 /* Locate the previous node in the alias chain. */
3733 PPGMPHYS2VIRTHANDLER pPrev = (PPGMPHYS2VIRTHANDLER)RTAvlroGCPhysGet(&pPGM->CTXSUFF(pTrees)->PhysToVirtHandlers, pPhys2Virt->Core.Key);
3734#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
3735 AssertReleaseMsg(pPrev != pPhys2Virt,
3736 ("pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32} pPrev=%p\n",
3737 pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias, pPrev));
3738#endif
3739 for (;;)
3740 {
3741 PPGMPHYS2VIRTHANDLER pNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPrev + (pPrev->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
3742 if (pNext == pPhys2Virt)
3743 {
3744 /* unlink. */
3745 LogFlow(("pgmHandlerVirtualClearPage: removed %p:{.offNextAlias=%#RX32} from alias chain. prev %p:{.offNextAlias=%#RX32} [%VGp-%VGp]\n",
3746 pPhys2Virt, pPhys2Virt->offNextAlias, pPrev, pPrev->offNextAlias, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast));
3747 if (!(pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
3748 pPrev->offNextAlias &= ~PGMPHYS2VIRTHANDLER_OFF_MASK;
3749 else
3750 {
3751 PPGMPHYS2VIRTHANDLER pNewNext = (PPGMPHYS2VIRTHANDLER)((intptr_t)pPhys2Virt + (pPhys2Virt->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
3752 pPrev->offNextAlias = ((intptr_t)pNewNext - (intptr_t)pPrev)
3753 | (pPrev->offNextAlias & ~PGMPHYS2VIRTHANDLER_OFF_MASK);
3754 }
3755 break;
3756 }
3757
3758 /* next */
3759 if (pNext == pPrev)
3760 {
3761#ifdef VBOX_STRICT_PGM_HANDLER_VIRTUAL
3762 AssertReleaseMsg(pNext != pPrev,
3763 ("pPhys2Virt=%p:{.Core.Key=%VGp, .Core.KeyLast=%VGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32} pPrev=%p\n",
3764 pPhys2Virt, pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offVirtHandler, pPhys2Virt->offNextAlias, pPrev));
3765#endif
3766 break;
3767 }
3768 pPrev = pNext;
3769 }
3770 }
3771 Log2(("PHYS2VIRT: Removing %VGp-%VGp %#RX32 %s\n",
3772 pPhys2Virt->Core.Key, pPhys2Virt->Core.KeyLast, pPhys2Virt->offNextAlias, HCSTRING(pCur->pszDesc)));
3773 pPhys2Virt->offNextAlias = 0;
3774 pPhys2Virt->Core.KeyLast = NIL_RTGCPHYS; /* require reinsert */
3775
3776 /*
3777 * Clear the ram flags for this page.
3778 */
3779 PPGMPAGE pPage = pgmPhysGetPage(pPGM, pPhys2Virt->Core.Key);
3780 AssertReturnVoid(pPage);
3781 PGM_PAGE_SET_HNDL_VIRT_STATE(pPage, PGM_PAGE_HNDL_VIRT_STATE_NONE);
3782}
3783
3784
3785/**
3786 * Internal worker for finding a 'in-use' shadow page give by it's physical address.
3787 *
3788 * @returns Pointer to the shadow page structure.
3789 * @param pPool The pool.
3790 * @param HCPhys The HC physical address of the shadow page.
3791 */
3792DECLINLINE(PPGMPOOLPAGE) pgmPoolGetPage(PPGMPOOL pPool, RTHCPHYS HCPhys)
3793{
3794 /*
3795 * Look up the page.
3796 */
3797 PPGMPOOLPAGE pPage = (PPGMPOOLPAGE)RTAvloHCPhysGet(&pPool->HCPhysTree, HCPhys & X86_PTE_PAE_PG_MASK);
3798 AssertFatalMsg(pPage && pPage->enmKind != PGMPOOLKIND_FREE, ("HCPhys=%VHp pPage=%p type=%d\n", HCPhys, pPage, (pPage) ? pPage->enmKind : 0));
3799 return pPage;
3800}
3801
3802
3803/**
3804 * Internal worker for finding a 'in-use' shadow page give by it's physical address.
3805 *
3806 * @returns Pointer to the shadow page structure.
3807 * @param pPool The pool.
3808 * @param idx The pool page index.
3809 */
3810DECLINLINE(PPGMPOOLPAGE) pgmPoolGetPageByIdx(PPGMPOOL pPool, unsigned idx)
3811{
3812 AssertFatalMsg(idx >= PGMPOOL_IDX_FIRST && idx < pPool->cCurPages, ("idx=%d\n", idx));
3813 return &pPool->aPages[idx];
3814}
3815
3816
3817#ifdef PGMPOOL_WITH_GCPHYS_TRACKING
3818/**
3819 * Clear references to guest physical memory.
3820 *
3821 * @param pPool The pool.
3822 * @param pPoolPage The pool page.
3823 * @param pPhysPage The physical guest page tracking structure.
3824 */
3825DECLINLINE(void) pgmTrackDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPoolPage, PPGMPAGE pPhysPage)
3826{
3827 /*
3828 * Just deal with the simple case here.
3829 */
3830#ifdef LOG_ENABLED
3831 const RTHCPHYS HCPhysOrg = pPhysPage->HCPhys; /** @todo PAGE FLAGS */
3832#endif
3833 const unsigned cRefs = pPhysPage->HCPhys >> MM_RAM_FLAGS_CREFS_SHIFT; /** @todo PAGE FLAGS */
3834 if (cRefs == 1)
3835 {
3836 Assert(pPoolPage->idx == ((pPhysPage->HCPhys >> MM_RAM_FLAGS_IDX_SHIFT) & MM_RAM_FLAGS_IDX_MASK));
3837 pPhysPage->HCPhys = pPhysPage->HCPhys & MM_RAM_FLAGS_NO_REFS_MASK;
3838 }
3839 else
3840 pgmPoolTrackPhysExtDerefGCPhys(pPool, pPoolPage, pPhysPage);
3841 LogFlow(("pgmTrackDerefGCPhys: HCPhys=%RHp -> %RHp\n", HCPhysOrg, pPhysPage->HCPhys));
3842}
3843#endif
3844
3845
3846#ifdef PGMPOOL_WITH_CACHE
3847/**
3848 * Moves the page to the head of the age list.
3849 *
3850 * This is done when the cached page is used in one way or another.
3851 *
3852 * @param pPool The pool.
3853 * @param pPage The cached page.
3854 * @todo inline in PGMInternal.h!
3855 */
3856DECLINLINE(void) pgmPoolCacheUsed(PPGMPOOL pPool, PPGMPOOLPAGE pPage)
3857{
3858 /*
3859 * Move to the head of the age list.
3860 */
3861 if (pPage->iAgePrev != NIL_PGMPOOL_IDX)
3862 {
3863 /* unlink */
3864 pPool->aPages[pPage->iAgePrev].iAgeNext = pPage->iAgeNext;
3865 if (pPage->iAgeNext != NIL_PGMPOOL_IDX)
3866 pPool->aPages[pPage->iAgeNext].iAgePrev = pPage->iAgePrev;
3867 else
3868 pPool->iAgeTail = pPage->iAgePrev;
3869
3870 /* insert at head */
3871 pPage->iAgePrev = NIL_PGMPOOL_IDX;
3872 pPage->iAgeNext = pPool->iAgeHead;
3873 Assert(pPage->iAgeNext != NIL_PGMPOOL_IDX); /* we would've already been head then */
3874 pPool->iAgeHead = pPage->idx;
3875 pPool->aPages[pPage->iAgeNext].iAgePrev = pPage->idx;
3876 }
3877}
3878#endif /* PGMPOOL_WITH_CACHE */
3879
3880/**
3881 * Tells if mappings are to be put into the shadow page table or not
3882 *
3883 * @returns boolean result
3884 * @param pVM VM handle.
3885 */
3886
3887DECLINLINE(bool) pgmMapAreMappingsEnabled(PPGM pPGM)
3888{
3889#ifdef IN_RING0
3890 /* There are no mappings in VT-x and AMD-V mode. */
3891 Assert(pPGM->fDisableMappings);
3892 return false;
3893#else
3894 return !pPGM->fDisableMappings;
3895#endif
3896}
3897
3898/** @} */
3899
3900#endif
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