VirtualBox

source: vbox/trunk/src/VBox/VMM/PGMInternal.h@ 26550

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1/* $Id: PGMInternal.h 26491 2010-02-14 07:47:12Z vboxsync $ */
2/** @file
3 * PGM - Internal header file.
4 */
5
6/*
7 * Copyright (C) 2006-2010 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/asm.h>
40#include <iprt/assert.h>
41#include <iprt/avl.h>
42#include <iprt/critsect.h>
43#include <iprt/sha.h>
44
45
46
47/** @defgroup grp_pgm_int Internals
48 * @ingroup grp_pgm
49 * @internal
50 * @{
51 */
52
53
54/** @name PGM Compile Time Config
55 * @{
56 */
57
58/**
59 * Indicates that there are no guest mappings to care about.
60 * Currently on raw-mode related code uses mappings, i.e. RC and R3 code.
61 */
62#if defined(IN_RING0) || !defined(VBOX_WITH_RAW_MODE)
63# define PGM_WITHOUT_MAPPINGS
64#endif
65
66/**
67 * Solve page is out of sync issues inside Guest Context (in PGMGC.cpp).
68 * Comment it if it will break something.
69 */
70#define PGM_OUT_OF_SYNC_IN_GC
71
72/**
73 * Check and skip global PDEs for non-global flushes
74 */
75#define PGM_SKIP_GLOBAL_PAGEDIRS_ON_NONGLOBAL_FLUSH
76
77/**
78 * Optimization for PAE page tables that are modified often
79 */
80//#if 0 /* disabled again while debugging */
81#ifndef IN_RC
82# define PGMPOOL_WITH_OPTIMIZED_DIRTY_PT
83#endif
84//#endif
85
86/**
87 * Sync N pages instead of a whole page table
88 */
89#define PGM_SYNC_N_PAGES
90
91/**
92 * Number of pages to sync during a page fault
93 *
94 * When PGMPOOL_WITH_GCPHYS_TRACKING is enabled using high values here
95 * causes a lot of unnecessary extents and also is slower than taking more \#PFs.
96 *
97 * Note that \#PFs are much more expensive in the VT-x/AMD-V case due to
98 * world switch overhead, so let's sync more.
99 */
100# ifdef IN_RING0
101/* Chose 32 based on the compile test in #4219; 64 shows worse stats.
102 * 32 again shows better results than 16; slightly more overhead in the \#PF handler,
103 * but ~5% fewer faults.
104 */
105# define PGM_SYNC_NR_PAGES 32
106#else
107# define PGM_SYNC_NR_PAGES 8
108#endif
109
110/**
111 * Number of PGMPhysRead/Write cache entries (must be <= sizeof(uint64_t))
112 */
113#define PGM_MAX_PHYSCACHE_ENTRIES 64
114#define PGM_MAX_PHYSCACHE_ENTRIES_MASK (PGM_MAX_PHYSCACHE_ENTRIES-1)
115
116
117/** @def PGMPOOL_CFG_MAX_GROW
118 * The maximum number of pages to add to the pool in one go.
119 */
120#define PGMPOOL_CFG_MAX_GROW (_256K >> PAGE_SHIFT)
121
122/** @def VBOX_STRICT_PGM_HANDLER_VIRTUAL
123 * Enables some extra assertions for virtual handlers (mainly phys2virt related).
124 */
125#ifdef VBOX_STRICT
126# define VBOX_STRICT_PGM_HANDLER_VIRTUAL
127#endif
128
129/** @def VBOX_WITH_NEW_LAZY_PAGE_ALLOC
130 * Enables the experimental lazy page allocation code. */
131/*#define VBOX_WITH_NEW_LAZY_PAGE_ALLOC */
132
133/** @def VBOX_WITH_REAL_WRITE_MONITORED_PAGES
134 * Enables real write monitoring of pages, i.e. mapping them read-only and
135 * only making them writable when getting a write access #PF. */
136#define VBOX_WITH_REAL_WRITE_MONITORED_PAGES
137
138/** @} */
139
140
141/** @name PDPT and PML4 flags.
142 * These are placed in the three bits available for system programs in
143 * the PDPT and PML4 entries.
144 * @{ */
145/** The entry is a permanent one and it's must always be present.
146 * Never free such an entry. */
147#define PGM_PLXFLAGS_PERMANENT RT_BIT_64(10)
148/** Mapping (hypervisor allocated pagetable). */
149#define PGM_PLXFLAGS_MAPPING RT_BIT_64(11)
150/** @} */
151
152/** @name Page directory flags.
153 * These are placed in the three bits available for system programs in
154 * the page directory entries.
155 * @{ */
156/** Mapping (hypervisor allocated pagetable). */
157#define PGM_PDFLAGS_MAPPING RT_BIT_64(10)
158/** Made read-only to facilitate dirty bit tracking. */
159#define PGM_PDFLAGS_TRACK_DIRTY RT_BIT_64(11)
160/** @} */
161
162/** @name Page flags.
163 * These are placed in the three bits available for system programs in
164 * the page entries.
165 * @{ */
166/** Made read-only to facilitate dirty bit tracking. */
167#define PGM_PTFLAGS_TRACK_DIRTY RT_BIT_64(9)
168
169#ifndef PGM_PTFLAGS_CSAM_VALIDATED
170/** Scanned and approved by CSAM (tm).
171 * NOTE: Must be identical to the one defined in CSAMInternal.h!!
172 * @todo Move PGM_PTFLAGS_* and PGM_PDFLAGS_* to VBox/pgm.h. */
173#define PGM_PTFLAGS_CSAM_VALIDATED RT_BIT_64(11)
174#endif
175
176/** @} */
177
178/** @name Defines used to indicate the shadow and guest paging in the templates.
179 * @{ */
180#define PGM_TYPE_REAL 1
181#define PGM_TYPE_PROT 2
182#define PGM_TYPE_32BIT 3
183#define PGM_TYPE_PAE 4
184#define PGM_TYPE_AMD64 5
185#define PGM_TYPE_NESTED 6
186#define PGM_TYPE_EPT 7
187#define PGM_TYPE_MAX PGM_TYPE_EPT
188/** @} */
189
190/** Macro for checking if the guest is using paging.
191 * @param uGstType PGM_TYPE_*
192 * @param uShwType PGM_TYPE_*
193 * @remark ASSUMES certain order of the PGM_TYPE_* values.
194 */
195#define PGM_WITH_PAGING(uGstType, uShwType) \
196 ( (uGstType) >= PGM_TYPE_32BIT \
197 && (uShwType) != PGM_TYPE_NESTED \
198 && (uShwType) != PGM_TYPE_EPT)
199
200/** Macro for checking if the guest supports the NX bit.
201 * @param uGstType PGM_TYPE_*
202 * @param uShwType PGM_TYPE_*
203 * @remark ASSUMES certain order of the PGM_TYPE_* values.
204 */
205#define PGM_WITH_NX(uGstType, uShwType) \
206 ( (uGstType) >= PGM_TYPE_PAE \
207 && (uShwType) != PGM_TYPE_NESTED \
208 && (uShwType) != PGM_TYPE_EPT)
209
210
211/** @def PGM_HCPHYS_2_PTR
212 * Maps a HC physical page pool address to a virtual address.
213 *
214 * @returns VBox status code.
215 * @param pVM The VM handle.
216 * @param HCPhys The HC physical address to map to a virtual one.
217 * @param ppv Where to store the virtual address. No need to cast this.
218 *
219 * @remark In GC this uses PGMGCDynMapHCPage(), so it will consume of the
220 * small page window employeed by that function. Be careful.
221 * @remark There is no need to assert on the result.
222 */
223#ifdef IN_RC
224# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) \
225 PGMDynMapHCPage(pVM, HCPhys, (void **)(ppv))
226#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
227# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) \
228 pgmR0DynMapHCPageInlined(&(pVM)->pgm.s, HCPhys, (void **)(ppv))
229#else
230# define PGM_HCPHYS_2_PTR(pVM, HCPhys, ppv) \
231 MMPagePhys2PageEx(pVM, HCPhys, (void **)(ppv))
232#endif
233
234/** @def PGM_HCPHYS_2_PTR_BY_PGM
235 * Maps a HC physical page pool address to a virtual address.
236 *
237 * @returns VBox status code.
238 * @param pPGM The PGM instance data.
239 * @param HCPhys The HC physical address to map to a virtual one.
240 * @param ppv Where to store the virtual address. No need to cast this.
241 *
242 * @remark In GC this uses PGMGCDynMapHCPage(), so it will consume of the
243 * small page window employeed by that function. Be careful.
244 * @remark There is no need to assert on the result.
245 */
246#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
247# define PGM_HCPHYS_2_PTR_BY_PGM(pPGM, HCPhys, ppv) \
248 pgmR0DynMapHCPageInlined(pPGM, HCPhys, (void **)(ppv))
249#else
250# define PGM_HCPHYS_2_PTR_BY_PGM(pPGM, HCPhys, ppv) \
251 PGM_HCPHYS_2_PTR(PGM2VM(pPGM), HCPhys, (void **)(ppv))
252#endif
253
254/** @def PGM_GCPHYS_2_PTR
255 * Maps a GC physical page address to a virtual address.
256 *
257 * @returns VBox status code.
258 * @param pVM The VM handle.
259 * @param GCPhys The GC physical address to map to a virtual one.
260 * @param ppv Where to store the virtual address. No need to cast this.
261 *
262 * @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
263 * small page window employeed by that function. Be careful.
264 * @remark There is no need to assert on the result.
265 */
266#ifdef IN_RC
267# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) \
268 PGMDynMapGCPage(pVM, GCPhys, (void **)(ppv))
269#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
270# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) \
271 pgmR0DynMapGCPageInlined(&(pVM)->pgm.s, GCPhys, (void **)(ppv))
272#else
273# define PGM_GCPHYS_2_PTR(pVM, GCPhys, ppv) \
274 PGMPhysGCPhys2R3Ptr(pVM, GCPhys, 1 /* one page only */, (PRTR3PTR)(ppv)) /** @todo this isn't asserting, use PGMRamGCPhys2HCPtr! */
275#endif
276
277/** @def PGM_GCPHYS_2_PTR_BY_PGMCPU
278 * Maps a GC physical page address to a virtual address.
279 *
280 * @returns VBox status code.
281 * @param pPGM Pointer to the PGM instance data.
282 * @param GCPhys The GC physical address to map to a virtual one.
283 * @param ppv Where to store the virtual address. No need to cast this.
284 *
285 * @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
286 * small page window employeed by that function. Be careful.
287 * @remark There is no need to assert on the result.
288 */
289#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
290# define PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, GCPhys, ppv) \
291 pgmR0DynMapGCPageInlined(PGMCPU2PGM(pPGM), GCPhys, (void **)(ppv))
292#else
293# define PGM_GCPHYS_2_PTR_BY_PGMCPU(pPGM, GCPhys, ppv) \
294 PGM_GCPHYS_2_PTR(PGMCPU2VM(pPGM), GCPhys, ppv)
295#endif
296
297/** @def PGM_GCPHYS_2_PTR_EX
298 * Maps a unaligned GC physical page address to a virtual address.
299 *
300 * @returns VBox status code.
301 * @param pVM The VM handle.
302 * @param GCPhys The GC physical address to map to a virtual one.
303 * @param ppv Where to store the virtual address. No need to cast this.
304 *
305 * @remark In GC this uses PGMGCDynMapGCPage(), so it will consume of the
306 * small page window employeed by that function. Be careful.
307 * @remark There is no need to assert on the result.
308 */
309#if defined(IN_RC) || defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
310# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) \
311 PGMDynMapGCPageOff(pVM, GCPhys, (void **)(ppv))
312#else
313# define PGM_GCPHYS_2_PTR_EX(pVM, GCPhys, ppv) \
314 PGMPhysGCPhys2R3Ptr(pVM, GCPhys, 1 /* one page only */, (PRTR3PTR)(ppv)) /** @todo this isn't asserting, use PGMRamGCPhys2HCPtr! */
315#endif
316
317/** @def PGM_INVL_PG
318 * Invalidates a page.
319 *
320 * @param pVCpu The VMCPU handle.
321 * @param GCVirt The virtual address of the page to invalidate.
322 */
323#ifdef IN_RC
324# define PGM_INVL_PG(pVCpu, GCVirt) ASMInvalidatePage((void *)(uintptr_t)(GCVirt))
325#elif defined(IN_RING0)
326# define PGM_INVL_PG(pVCpu, GCVirt) HWACCMInvalidatePage(pVCpu, (RTGCPTR)(GCVirt))
327#else
328# define PGM_INVL_PG(pVCpu, GCVirt) HWACCMInvalidatePage(pVCpu, (RTGCPTR)(GCVirt))
329#endif
330
331/** @def PGM_INVL_PG_ALL_VCPU
332 * Invalidates a page on all VCPUs
333 *
334 * @param pVM The VM handle.
335 * @param GCVirt The virtual address of the page to invalidate.
336 */
337#ifdef IN_RC
338# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) ASMInvalidatePage((void *)(uintptr_t)(GCVirt))
339#elif defined(IN_RING0)
340# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) HWACCMInvalidatePageOnAllVCpus(pVM, (RTGCPTR)(GCVirt))
341#else
342# define PGM_INVL_PG_ALL_VCPU(pVM, GCVirt) HWACCMInvalidatePageOnAllVCpus(pVM, (RTGCPTR)(GCVirt))
343#endif
344
345/** @def PGM_INVL_BIG_PG
346 * Invalidates a 4MB page directory entry.
347 *
348 * @param pVCpu The VMCPU handle.
349 * @param GCVirt The virtual address within the page directory to invalidate.
350 */
351#ifdef IN_RC
352# define PGM_INVL_BIG_PG(pVCpu, GCVirt) ASMReloadCR3()
353#elif defined(IN_RING0)
354# define PGM_INVL_BIG_PG(pVCpu, GCVirt) HWACCMFlushTLB(pVCpu)
355#else
356# define PGM_INVL_BIG_PG(pVCpu, GCVirt) HWACCMFlushTLB(pVCpu)
357#endif
358
359/** @def PGM_INVL_VCPU_TLBS()
360 * Invalidates the TLBs of the specified VCPU
361 *
362 * @param pVCpu The VMCPU handle.
363 */
364#ifdef IN_RC
365# define PGM_INVL_VCPU_TLBS(pVCpu) ASMReloadCR3()
366#elif defined(IN_RING0)
367# define PGM_INVL_VCPU_TLBS(pVCpu) HWACCMFlushTLB(pVCpu)
368#else
369# define PGM_INVL_VCPU_TLBS(pVCpu) HWACCMFlushTLB(pVCpu)
370#endif
371
372/** @def PGM_INVL_ALL_VCPU_TLBS()
373 * Invalidates the TLBs of all VCPUs
374 *
375 * @param pVM The VM handle.
376 */
377#ifdef IN_RC
378# define PGM_INVL_ALL_VCPU_TLBS(pVM) ASMReloadCR3()
379#elif defined(IN_RING0)
380# define PGM_INVL_ALL_VCPU_TLBS(pVM) HWACCMFlushTLBOnAllVCpus(pVM)
381#else
382# define PGM_INVL_ALL_VCPU_TLBS(pVM) HWACCMFlushTLBOnAllVCpus(pVM)
383#endif
384
385/** Size of the GCPtrConflict array in PGMMAPPING.
386 * @remarks Must be a power of two. */
387#define PGMMAPPING_CONFLICT_MAX 8
388
389/**
390 * Structure for tracking GC Mappings.
391 *
392 * This structure is used by linked list in both GC and HC.
393 */
394typedef struct PGMMAPPING
395{
396 /** Pointer to next entry. */
397 R3PTRTYPE(struct PGMMAPPING *) pNextR3;
398 /** Pointer to next entry. */
399 R0PTRTYPE(struct PGMMAPPING *) pNextR0;
400 /** Pointer to next entry. */
401 RCPTRTYPE(struct PGMMAPPING *) pNextRC;
402 /** Indicate whether this entry is finalized. */
403 bool fFinalized;
404 /** Start Virtual address. */
405 RTGCPTR GCPtr;
406 /** Last Virtual address (inclusive). */
407 RTGCPTR GCPtrLast;
408 /** Range size (bytes). */
409 RTGCPTR cb;
410 /** Pointer to relocation callback function. */
411 R3PTRTYPE(PFNPGMRELOCATE) pfnRelocate;
412 /** User argument to the callback. */
413 R3PTRTYPE(void *) pvUser;
414 /** Mapping description / name. For easing debugging. */
415 R3PTRTYPE(const char *) pszDesc;
416 /** Last 8 addresses that caused conflicts. */
417 RTGCPTR aGCPtrConflicts[PGMMAPPING_CONFLICT_MAX];
418 /** Number of conflicts for this hypervisor mapping. */
419 uint32_t cConflicts;
420 /** Number of page tables. */
421 uint32_t cPTs;
422
423 /** Array of page table mapping data. Each entry
424 * describes one page table. The array can be longer
425 * than the declared length.
426 */
427 struct
428 {
429 /** The HC physical address of the page table. */
430 RTHCPHYS HCPhysPT;
431 /** The HC physical address of the first PAE page table. */
432 RTHCPHYS HCPhysPaePT0;
433 /** The HC physical address of the second PAE page table. */
434 RTHCPHYS HCPhysPaePT1;
435 /** The HC virtual address of the 32-bit page table. */
436 R3PTRTYPE(PX86PT) pPTR3;
437 /** The HC virtual address of the two PAE page table. (i.e 1024 entries instead of 512) */
438 R3PTRTYPE(PX86PTPAE) paPaePTsR3;
439 /** The RC virtual address of the 32-bit page table. */
440 RCPTRTYPE(PX86PT) pPTRC;
441 /** The RC virtual address of the two PAE page table. */
442 RCPTRTYPE(PX86PTPAE) paPaePTsRC;
443 /** The R0 virtual address of the 32-bit page table. */
444 R0PTRTYPE(PX86PT) pPTR0;
445 /** The R0 virtual address of the two PAE page table. */
446 R0PTRTYPE(PX86PTPAE) paPaePTsR0;
447 } aPTs[1];
448} PGMMAPPING;
449/** Pointer to structure for tracking GC Mappings. */
450typedef struct PGMMAPPING *PPGMMAPPING;
451
452
453/**
454 * Physical page access handler structure.
455 *
456 * This is used to keep track of physical address ranges
457 * which are being monitored in some kind of way.
458 */
459typedef struct PGMPHYSHANDLER
460{
461 AVLROGCPHYSNODECORE Core;
462 /** Access type. */
463 PGMPHYSHANDLERTYPE enmType;
464 /** Number of pages to update. */
465 uint32_t cPages;
466 /** Pointer to R3 callback function. */
467 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnHandlerR3;
468 /** User argument for R3 handlers. */
469 R3PTRTYPE(void *) pvUserR3;
470 /** Pointer to R0 callback function. */
471 R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnHandlerR0;
472 /** User argument for R0 handlers. */
473 R0PTRTYPE(void *) pvUserR0;
474 /** Pointer to RC callback function. */
475 RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnHandlerRC;
476 /** User argument for RC handlers. */
477 RCPTRTYPE(void *) pvUserRC;
478 /** Description / Name. For easing debugging. */
479 R3PTRTYPE(const char *) pszDesc;
480#ifdef VBOX_WITH_STATISTICS
481 /** Profiling of this handler. */
482 STAMPROFILE Stat;
483#endif
484} PGMPHYSHANDLER;
485/** Pointer to a physical page access handler structure. */
486typedef PGMPHYSHANDLER *PPGMPHYSHANDLER;
487
488
489/**
490 * Cache node for the physical addresses covered by a virtual handler.
491 */
492typedef struct PGMPHYS2VIRTHANDLER
493{
494 /** Core node for the tree based on physical ranges. */
495 AVLROGCPHYSNODECORE Core;
496 /** Offset from this struct to the PGMVIRTHANDLER structure. */
497 int32_t offVirtHandler;
498 /** Offset of the next alias relative to this one.
499 * Bit 0 is used for indicating whether we're in the tree.
500 * Bit 1 is used for indicating that we're the head node.
501 */
502 int32_t offNextAlias;
503} PGMPHYS2VIRTHANDLER;
504/** Pointer to a phys to virtual handler structure. */
505typedef PGMPHYS2VIRTHANDLER *PPGMPHYS2VIRTHANDLER;
506
507/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
508 * node is in the tree. */
509#define PGMPHYS2VIRTHANDLER_IN_TREE RT_BIT(0)
510/** The bit in PGMPHYS2VIRTHANDLER::offNextAlias used to indicate that the
511 * node is in the head of an alias chain.
512 * The PGMPHYS2VIRTHANDLER_IN_TREE is always set if this bit is set. */
513#define PGMPHYS2VIRTHANDLER_IS_HEAD RT_BIT(1)
514/** The mask to apply to PGMPHYS2VIRTHANDLER::offNextAlias to get the offset. */
515#define PGMPHYS2VIRTHANDLER_OFF_MASK (~(int32_t)3)
516
517
518/**
519 * Virtual page access handler structure.
520 *
521 * This is used to keep track of virtual address ranges
522 * which are being monitored in some kind of way.
523 */
524typedef struct PGMVIRTHANDLER
525{
526 /** Core node for the tree based on virtual ranges. */
527 AVLROGCPTRNODECORE Core;
528 /** Size of the range (in bytes). */
529 RTGCPTR cb;
530 /** Number of cache pages. */
531 uint32_t cPages;
532 /** Access type. */
533 PGMVIRTHANDLERTYPE enmType;
534 /** Pointer to the RC callback function. */
535 RCPTRTYPE(PFNPGMRCVIRTHANDLER) pfnHandlerRC;
536#if HC_ARCH_BITS == 64
537 RTRCPTR padding;
538#endif
539 /** Pointer to the R3 callback function for invalidation. */
540 R3PTRTYPE(PFNPGMR3VIRTINVALIDATE) pfnInvalidateR3;
541 /** Pointer to the R3 callback function. */
542 R3PTRTYPE(PFNPGMR3VIRTHANDLER) pfnHandlerR3;
543 /** Description / Name. For easing debugging. */
544 R3PTRTYPE(const char *) pszDesc;
545#ifdef VBOX_WITH_STATISTICS
546 /** Profiling of this handler. */
547 STAMPROFILE Stat;
548#endif
549 /** Array of cached physical addresses for the monitored ranged. */
550 PGMPHYS2VIRTHANDLER aPhysToVirt[HC_ARCH_BITS == 32 ? 1 : 2];
551} PGMVIRTHANDLER;
552/** Pointer to a virtual page access handler structure. */
553typedef PGMVIRTHANDLER *PPGMVIRTHANDLER;
554
555
556/**
557 * Page type.
558 *
559 * @remarks This enum has to fit in a 3-bit field (see PGMPAGE::u3Type).
560 * @remarks This is used in the saved state, so changes to it requires bumping
561 * the saved state version.
562 * @todo So, convert to \#defines!
563 */
564typedef enum PGMPAGETYPE
565{
566 /** The usual invalid zero entry. */
567 PGMPAGETYPE_INVALID = 0,
568 /** RAM page. (RWX) */
569 PGMPAGETYPE_RAM,
570 /** MMIO2 page. (RWX) */
571 PGMPAGETYPE_MMIO2,
572 /** MMIO2 page aliased over an MMIO page. (RWX)
573 * See PGMHandlerPhysicalPageAlias(). */
574 PGMPAGETYPE_MMIO2_ALIAS_MMIO,
575 /** Shadowed ROM. (RWX) */
576 PGMPAGETYPE_ROM_SHADOW,
577 /** ROM page. (R-X) */
578 PGMPAGETYPE_ROM,
579 /** MMIO page. (---) */
580 PGMPAGETYPE_MMIO,
581 /** End of valid entries. */
582 PGMPAGETYPE_END
583} PGMPAGETYPE;
584AssertCompile(PGMPAGETYPE_END <= 7);
585
586/** @name Page type predicates.
587 * @{ */
588#define PGMPAGETYPE_IS_READABLE(type) ( (type) <= PGMPAGETYPE_ROM )
589#define PGMPAGETYPE_IS_WRITEABLE(type) ( (type) <= PGMPAGETYPE_ROM_SHADOW )
590#define PGMPAGETYPE_IS_RWX(type) ( (type) <= PGMPAGETYPE_ROM_SHADOW )
591#define PGMPAGETYPE_IS_ROX(type) ( (type) == PGMPAGETYPE_ROM )
592#define PGMPAGETYPE_IS_NP(type) ( (type) == PGMPAGETYPE_MMIO )
593/** @} */
594
595
596/**
597 * A Physical Guest Page tracking structure.
598 *
599 * The format of this structure is complicated because we have to fit a lot
600 * of information into as few bits as possible. The format is also subject
601 * to change (there is one comming up soon). Which means that for we'll be
602 * using PGM_PAGE_GET_*, PGM_PAGE_IS_ and PGM_PAGE_SET_* macros for *all*
603 * accesses to the structure.
604 */
605typedef struct PGMPAGE
606{
607 /** The physical address and the Page ID. */
608 RTHCPHYS HCPhysAndPageID;
609 /** Combination of:
610 * - [0-7]: u2HandlerPhysStateY - the physical handler state
611 * (PGM_PAGE_HNDL_PHYS_STATE_*).
612 * - [8-9]: u2HandlerVirtStateY - the virtual handler state
613 * (PGM_PAGE_HNDL_VIRT_STATE_*).
614 * - [15]: fWrittenToY - flag indicating that a write monitored page was
615 * written to when set.
616 * - [10-14]: 5 unused bits.
617 * @remarks Warning! All accesses to the bits are hardcoded.
618 *
619 * @todo Change this to a union with both bitfields, u8 and u accessors.
620 * That'll help deal with some of the hardcoded accesses.
621 *
622 * @todo Include uStateY and uTypeY as well so it becomes 32-bit. This
623 * will make it possible to turn some of the 16-bit accesses into
624 * 32-bit ones, which may be efficient (stalls).
625 */
626 RTUINT16U u16MiscY;
627 /** The page state.
628 * Only 2 bits are really needed for this. */
629 uint8_t uStateY;
630 /** The page type (PGMPAGETYPE).
631 * Only 3 bits are really needed for this. */
632 uint8_t uTypeY;
633 /** Usage tracking (page pool). */
634 uint16_t u16TrackingY;
635 /** The number of read locks on this page. */
636 uint8_t cReadLocksY;
637 /** The number of write locks on this page. */
638 uint8_t cWriteLocksY;
639} PGMPAGE;
640AssertCompileSize(PGMPAGE, 16);
641/** Pointer to a physical guest page. */
642typedef PGMPAGE *PPGMPAGE;
643/** Pointer to a const physical guest page. */
644typedef const PGMPAGE *PCPGMPAGE;
645/** Pointer to a physical guest page pointer. */
646typedef PPGMPAGE *PPPGMPAGE;
647
648
649/**
650 * Clears the page structure.
651 * @param pPage Pointer to the physical guest page tracking structure.
652 */
653#define PGM_PAGE_CLEAR(pPage) \
654 do { \
655 (pPage)->HCPhysAndPageID = 0; \
656 (pPage)->uStateY = 0; \
657 (pPage)->uTypeY = 0; \
658 (pPage)->u16MiscY.u = 0; \
659 (pPage)->u16TrackingY = 0; \
660 (pPage)->cReadLocksY = 0; \
661 (pPage)->cWriteLocksY = 0; \
662 } while (0)
663
664/**
665 * Initializes the page structure.
666 * @param pPage Pointer to the physical guest page tracking structure.
667 */
668#define PGM_PAGE_INIT(pPage, _HCPhys, _idPage, _uType, _uState) \
669 do { \
670 RTHCPHYS SetHCPhysTmp = (_HCPhys); \
671 AssertFatal(!(SetHCPhysTmp & ~UINT64_C(0x0000fffffffff000))); \
672 (pPage)->HCPhysAndPageID = (SetHCPhysTmp << (28-12)) | ((_idPage) & UINT32_C(0x0fffffff)); \
673 (pPage)->uStateY = (_uState); \
674 (pPage)->uTypeY = (_uType); \
675 (pPage)->u16MiscY.u = 0; \
676 (pPage)->u16TrackingY = 0; \
677 (pPage)->cReadLocksY = 0; \
678 (pPage)->cWriteLocksY = 0; \
679 } while (0)
680
681/**
682 * Initializes the page structure of a ZERO page.
683 * @param pPage Pointer to the physical guest page tracking structure.
684 * @param pVM The VM handle (for getting the zero page address).
685 * @param uType The page type (PGMPAGETYPE).
686 */
687#define PGM_PAGE_INIT_ZERO(pPage, pVM, uType) \
688 PGM_PAGE_INIT((pPage), (pVM)->pgm.s.HCPhysZeroPg, NIL_GMM_PAGEID, (uType), PGM_PAGE_STATE_ZERO)
689
690
691/** @name The Page state, PGMPAGE::uStateY.
692 * @{ */
693/** The zero page.
694 * This is a per-VM page that's never ever mapped writable. */
695#define PGM_PAGE_STATE_ZERO 0
696/** A allocated page.
697 * This is a per-VM page allocated from the page pool (or wherever
698 * we get MMIO2 pages from if the type is MMIO2).
699 */
700#define PGM_PAGE_STATE_ALLOCATED 1
701/** A allocated page that's being monitored for writes.
702 * The shadow page table mappings are read-only. When a write occurs, the
703 * fWrittenTo member is set, the page remapped as read-write and the state
704 * moved back to allocated. */
705#define PGM_PAGE_STATE_WRITE_MONITORED 2
706/** The page is shared, aka. copy-on-write.
707 * This is a page that's shared with other VMs. */
708#define PGM_PAGE_STATE_SHARED 3
709/** @} */
710
711
712/**
713 * Gets the page state.
714 * @returns page state (PGM_PAGE_STATE_*).
715 * @param pPage Pointer to the physical guest page tracking structure.
716 */
717#define PGM_PAGE_GET_STATE(pPage) ( (pPage)->uStateY )
718
719/**
720 * Sets the page state.
721 * @param pPage Pointer to the physical guest page tracking structure.
722 * @param _uState The new page state.
723 */
724#define PGM_PAGE_SET_STATE(pPage, _uState) do { (pPage)->uStateY = (_uState); } while (0)
725
726
727/**
728 * Gets the host physical address of the guest page.
729 * @returns host physical address (RTHCPHYS).
730 * @param pPage Pointer to the physical guest page tracking structure.
731 */
732#define PGM_PAGE_GET_HCPHYS(pPage) ( ((pPage)->HCPhysAndPageID >> 28) << 12 )
733
734/**
735 * Sets the host physical address of the guest page.
736 * @param pPage Pointer to the physical guest page tracking structure.
737 * @param _HCPhys The new host physical address.
738 */
739#define PGM_PAGE_SET_HCPHYS(pPage, _HCPhys) \
740 do { \
741 RTHCPHYS SetHCPhysTmp = (_HCPhys); \
742 AssertFatal(!(SetHCPhysTmp & ~UINT64_C(0x0000fffffffff000))); \
743 (pPage)->HCPhysAndPageID = ((pPage)->HCPhysAndPageID & UINT32_C(0x0fffffff)) \
744 | (SetHCPhysTmp << (28-12)); \
745 } while (0)
746
747/**
748 * Get the Page ID.
749 * @returns The Page ID; NIL_GMM_PAGEID if it's a ZERO page.
750 * @param pPage Pointer to the physical guest page tracking structure.
751 */
752#define PGM_PAGE_GET_PAGEID(pPage) ( (uint32_t)((pPage)->HCPhysAndPageID & UINT32_C(0x0fffffff)) )
753
754/**
755 * Sets the Page ID.
756 * @param pPage Pointer to the physical guest page tracking structure.
757 */
758#define PGM_PAGE_SET_PAGEID(pPage, _idPage) \
759 do { \
760 (pPage)->HCPhysAndPageID = (((pPage)->HCPhysAndPageID) & UINT64_C(0xfffffffff0000000)) \
761 | ((_idPage) & UINT32_C(0x0fffffff)); \
762 } while (0)
763
764/**
765 * Get the Chunk ID.
766 * @returns The Chunk ID; NIL_GMM_CHUNKID if it's a ZERO page.
767 * @param pPage Pointer to the physical guest page tracking structure.
768 */
769#define PGM_PAGE_GET_CHUNKID(pPage) ( PGM_PAGE_GET_PAGEID(pPage) >> GMM_CHUNKID_SHIFT )
770
771/**
772 * Get the index of the page within the allocation chunk.
773 * @returns The page index.
774 * @param pPage Pointer to the physical guest page tracking structure.
775 */
776#define PGM_PAGE_GET_PAGE_IN_CHUNK(pPage) ( (uint32_t)((pPage)->HCPhysAndPageID & GMM_PAGEID_IDX_MASK) )
777
778/**
779 * Gets the page type.
780 * @returns The page type.
781 * @param pPage Pointer to the physical guest page tracking structure.
782 */
783#define PGM_PAGE_GET_TYPE(pPage) (pPage)->uTypeY
784
785/**
786 * Sets the page type.
787 * @param pPage Pointer to the physical guest page tracking structure.
788 * @param _enmType The new page type (PGMPAGETYPE).
789 */
790#define PGM_PAGE_SET_TYPE(pPage, _enmType) do { (pPage)->uTypeY = (_enmType); } while (0)
791
792/**
793 * Checks if the page is marked for MMIO.
794 * @returns true/false.
795 * @param pPage Pointer to the physical guest page tracking structure.
796 */
797#define PGM_PAGE_IS_MMIO(pPage) ( (pPage)->uTypeY == PGMPAGETYPE_MMIO )
798
799/**
800 * Checks if the page is backed by the ZERO page.
801 * @returns true/false.
802 * @param pPage Pointer to the physical guest page tracking structure.
803 */
804#define PGM_PAGE_IS_ZERO(pPage) ( (pPage)->uStateY == PGM_PAGE_STATE_ZERO )
805
806/**
807 * Checks if the page is backed by a SHARED page.
808 * @returns true/false.
809 * @param pPage Pointer to the physical guest page tracking structure.
810 */
811#define PGM_PAGE_IS_SHARED(pPage) ( (pPage)->uStateY == PGM_PAGE_STATE_SHARED )
812
813
814/**
815 * Marks the paget as written to (for GMM change monitoring).
816 * @param pPage Pointer to the physical guest page tracking structure.
817 */
818#define PGM_PAGE_SET_WRITTEN_TO(pPage) do { (pPage)->u16MiscY.au8[1] |= UINT8_C(0x80); } while (0)
819
820/**
821 * Clears the written-to indicator.
822 * @param pPage Pointer to the physical guest page tracking structure.
823 */
824#define PGM_PAGE_CLEAR_WRITTEN_TO(pPage) do { (pPage)->u16MiscY.au8[1] &= UINT8_C(0x7f); } while (0)
825
826/**
827 * Checks if the page was marked as written-to.
828 * @returns true/false.
829 * @param pPage Pointer to the physical guest page tracking structure.
830 */
831#define PGM_PAGE_IS_WRITTEN_TO(pPage) ( !!((pPage)->u16MiscY.au8[1] & UINT8_C(0x80)) )
832
833
834/** Enabled optimized access handler tests.
835 * These optimizations makes ASSUMPTIONS about the state values and the u16MiscY
836 * layout. When enabled, the compiler should normally generate more compact
837 * code.
838 */
839#define PGM_PAGE_WITH_OPTIMIZED_HANDLER_ACCESS 1
840
841/** @name Physical Access Handler State values (PGMPAGE::u2HandlerPhysStateY).
842 *
843 * @remarks The values are assigned in order of priority, so we can calculate
844 * the correct state for a page with different handlers installed.
845 * @{ */
846/** No handler installed. */
847#define PGM_PAGE_HNDL_PHYS_STATE_NONE 0
848/** Monitoring is temporarily disabled. */
849#define PGM_PAGE_HNDL_PHYS_STATE_DISABLED 1
850/** Write access is monitored. */
851#define PGM_PAGE_HNDL_PHYS_STATE_WRITE 2
852/** All access is monitored. */
853#define PGM_PAGE_HNDL_PHYS_STATE_ALL 3
854/** @} */
855
856/**
857 * Gets the physical access handler state of a page.
858 * @returns PGM_PAGE_HNDL_PHYS_STATE_* value.
859 * @param pPage Pointer to the physical guest page tracking structure.
860 */
861#define PGM_PAGE_GET_HNDL_PHYS_STATE(pPage) \
862 ( (pPage)->u16MiscY.au8[0] )
863
864/**
865 * Sets the physical access handler state of a page.
866 * @param pPage Pointer to the physical guest page tracking structure.
867 * @param _uState The new state value.
868 */
869#define PGM_PAGE_SET_HNDL_PHYS_STATE(pPage, _uState) \
870 do { (pPage)->u16MiscY.au8[0] = (_uState); } while (0)
871
872/**
873 * Checks if the page has any physical access handlers, including temporariliy disabled ones.
874 * @returns true/false
875 * @param pPage Pointer to the physical guest page tracking structure.
876 */
877#define PGM_PAGE_HAS_ANY_PHYSICAL_HANDLERS(pPage) \
878 ( PGM_PAGE_GET_HNDL_PHYS_STATE(pPage) != PGM_PAGE_HNDL_PHYS_STATE_NONE )
879
880/**
881 * Checks if the page has any active physical access handlers.
882 * @returns true/false
883 * @param pPage Pointer to the physical guest page tracking structure.
884 */
885#define PGM_PAGE_HAS_ACTIVE_PHYSICAL_HANDLERS(pPage) \
886 ( PGM_PAGE_GET_HNDL_PHYS_STATE(pPage) >= PGM_PAGE_HNDL_PHYS_STATE_WRITE )
887
888
889/** @name Virtual Access Handler State values (PGMPAGE::u2HandlerVirtStateY).
890 *
891 * @remarks The values are assigned in order of priority, so we can calculate
892 * the correct state for a page with different handlers installed.
893 * @{ */
894/** No handler installed. */
895#define PGM_PAGE_HNDL_VIRT_STATE_NONE 0
896/* 1 is reserved so the lineup is identical with the physical ones. */
897/** Write access is monitored. */
898#define PGM_PAGE_HNDL_VIRT_STATE_WRITE 2
899/** All access is monitored. */
900#define PGM_PAGE_HNDL_VIRT_STATE_ALL 3
901/** @} */
902
903/**
904 * Gets the virtual access handler state of a page.
905 * @returns PGM_PAGE_HNDL_VIRT_STATE_* value.
906 * @param pPage Pointer to the physical guest page tracking structure.
907 */
908#define PGM_PAGE_GET_HNDL_VIRT_STATE(pPage) ((uint8_t)( (pPage)->u16MiscY.au8[1] & UINT8_C(0x03) ))
909
910/**
911 * Sets the virtual access handler state of a page.
912 * @param pPage Pointer to the physical guest page tracking structure.
913 * @param _uState The new state value.
914 */
915#define PGM_PAGE_SET_HNDL_VIRT_STATE(pPage, _uState) \
916 do { \
917 (pPage)->u16MiscY.au8[1] = ((pPage)->u16MiscY.au8[1] & UINT8_C(0xfc)) \
918 | ((_uState) & UINT8_C(0x03)); \
919 } while (0)
920
921/**
922 * Checks if the page has any virtual access handlers.
923 * @returns true/false
924 * @param pPage Pointer to the physical guest page tracking structure.
925 */
926#define PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS(pPage) \
927 ( PGM_PAGE_GET_HNDL_VIRT_STATE(pPage) != PGM_PAGE_HNDL_VIRT_STATE_NONE )
928
929/**
930 * Same as PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS - can't disable pages in
931 * virtual handlers.
932 * @returns true/false
933 * @param pPage Pointer to the physical guest page tracking structure.
934 */
935#define PGM_PAGE_HAS_ACTIVE_VIRTUAL_HANDLERS(pPage) \
936 PGM_PAGE_HAS_ANY_VIRTUAL_HANDLERS(pPage)
937
938
939/**
940 * Checks if the page has any access handlers, including temporarily disabled ones.
941 * @returns true/false
942 * @param pPage Pointer to the physical guest page tracking structure.
943 */
944#ifdef PGM_PAGE_WITH_OPTIMIZED_HANDLER_ACCESS
945# define PGM_PAGE_HAS_ANY_HANDLERS(pPage) \
946 ( ((pPage)->u16MiscY.u & UINT16_C(0x0303)) != 0 )
947#else
948# define PGM_PAGE_HAS_ANY_HANDLERS(pPage) \
949 ( PGM_PAGE_GET_HNDL_PHYS_STATE(pPage) != PGM_PAGE_HNDL_PHYS_STATE_NONE \
950 || PGM_PAGE_GET_HNDL_VIRT_STATE(pPage) != PGM_PAGE_HNDL_VIRT_STATE_NONE )
951#endif
952
953/**
954 * Checks if the page has any active access handlers.
955 * @returns true/false
956 * @param pPage Pointer to the physical guest page tracking structure.
957 */
958#ifdef PGM_PAGE_WITH_OPTIMIZED_HANDLER_ACCESS
959# define PGM_PAGE_HAS_ACTIVE_HANDLERS(pPage) \
960 ( ((pPage)->u16MiscY.u & UINT16_C(0x0202)) != 0 )
961#else
962# define PGM_PAGE_HAS_ACTIVE_HANDLERS(pPage) \
963 ( PGM_PAGE_GET_HNDL_PHYS_STATE(pPage) >= PGM_PAGE_HNDL_PHYS_STATE_WRITE \
964 || PGM_PAGE_GET_HNDL_VIRT_STATE(pPage) >= PGM_PAGE_HNDL_VIRT_STATE_WRITE )
965#endif
966
967/**
968 * Checks if the page has any active access handlers catching all accesses.
969 * @returns true/false
970 * @param pPage Pointer to the physical guest page tracking structure.
971 */
972#ifdef PGM_PAGE_WITH_OPTIMIZED_HANDLER_ACCESS
973# define PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(pPage) \
974 ( ( ((pPage)->u16MiscY.au8[0] | (pPage)->u16MiscY.au8[1]) & UINT8_C(0x3) ) \
975 == PGM_PAGE_HNDL_PHYS_STATE_ALL )
976#else
977# define PGM_PAGE_HAS_ACTIVE_ALL_HANDLERS(pPage) \
978 ( PGM_PAGE_GET_HNDL_PHYS_STATE(pPage) == PGM_PAGE_HNDL_PHYS_STATE_ALL \
979 || PGM_PAGE_GET_HNDL_VIRT_STATE(pPage) == PGM_PAGE_HNDL_VIRT_STATE_ALL )
980#endif
981
982
983/** @def PGM_PAGE_GET_TRACKING
984 * Gets the packed shadow page pool tracking data associated with a guest page.
985 * @returns uint16_t containing the data.
986 * @param pPage Pointer to the physical guest page tracking structure.
987 */
988#define PGM_PAGE_GET_TRACKING(pPage) ( (pPage)->u16TrackingY )
989
990/** @def PGM_PAGE_SET_TRACKING
991 * Sets the packed shadow page pool tracking data associated with a guest page.
992 * @param pPage Pointer to the physical guest page tracking structure.
993 * @param u16TrackingData The tracking data to store.
994 */
995#define PGM_PAGE_SET_TRACKING(pPage, u16TrackingData) \
996 do { (pPage)->u16TrackingY = (u16TrackingData); } while (0)
997
998/** @def PGM_PAGE_GET_TD_CREFS
999 * Gets the @a cRefs tracking data member.
1000 * @returns cRefs.
1001 * @param pPage Pointer to the physical guest page tracking structure.
1002 */
1003#define PGM_PAGE_GET_TD_CREFS(pPage) \
1004 ((PGM_PAGE_GET_TRACKING(pPage) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK)
1005
1006/** @def PGM_PAGE_GET_TD_IDX
1007 * Gets the @a idx tracking data member.
1008 * @returns idx.
1009 * @param pPage Pointer to the physical guest page tracking structure.
1010 */
1011#define PGM_PAGE_GET_TD_IDX(pPage) \
1012 ((PGM_PAGE_GET_TRACKING(pPage) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK)
1013
1014
1015/** Max number of locks on a page. */
1016#define PGM_PAGE_MAX_LOCKS UINT8_C(254)
1017
1018/** Get the read lock count.
1019 * @returns count.
1020 * @param pPage Pointer to the physical guest page tracking structure.
1021 */
1022#define PGM_PAGE_GET_READ_LOCKS(pPage) ( (pPage)->cReadLocksY )
1023
1024/** Get the write lock count.
1025 * @returns count.
1026 * @param pPage Pointer to the physical guest page tracking structure.
1027 */
1028#define PGM_PAGE_GET_WRITE_LOCKS(pPage) ( (pPage)->cWriteLocksY )
1029
1030/** Decrement the read lock counter.
1031 * @param pPage Pointer to the physical guest page tracking structure.
1032 */
1033#define PGM_PAGE_DEC_READ_LOCKS(pPage) do { --(pPage)->cReadLocksY; } while (0)
1034
1035/** Decrement the write lock counter.
1036 * @param pPage Pointer to the physical guest page tracking structure.
1037 */
1038#define PGM_PAGE_DEC_WRITE_LOCKS(pPage) do { --(pPage)->cWriteLocksY; } while (0)
1039
1040/** Increment the read lock counter.
1041 * @param pPage Pointer to the physical guest page tracking structure.
1042 */
1043#define PGM_PAGE_INC_READ_LOCKS(pPage) do { ++(pPage)->cReadLocksY; } while (0)
1044
1045/** Increment the write lock counter.
1046 * @param pPage Pointer to the physical guest page tracking structure.
1047 */
1048#define PGM_PAGE_INC_WRITE_LOCKS(pPage) do { ++(pPage)->cWriteLocksY; } while (0)
1049
1050
1051#if 0
1052/** Enables sanity checking of write monitoring using CRC-32. */
1053# define PGMLIVESAVERAMPAGE_WITH_CRC32
1054#endif
1055
1056/**
1057 * Per page live save tracking data.
1058 */
1059typedef struct PGMLIVESAVERAMPAGE
1060{
1061 /** Number of times it has been dirtied. */
1062 uint32_t cDirtied : 24;
1063 /** Whether it is currently dirty. */
1064 uint32_t fDirty : 1;
1065 /** Ignore the page.
1066 * This is used for pages that has been MMIO, MMIO2 or ROM pages once. We will
1067 * deal with these after pausing the VM and DevPCI have said it bit about
1068 * remappings. */
1069 uint32_t fIgnore : 1;
1070 /** Was a ZERO page last time around. */
1071 uint32_t fZero : 1;
1072 /** Was a SHARED page last time around. */
1073 uint32_t fShared : 1;
1074 /** Whether the page is/was write monitored in a previous pass. */
1075 uint32_t fWriteMonitored : 1;
1076 /** Whether the page is/was write monitored earlier in this pass. */
1077 uint32_t fWriteMonitoredJustNow : 1;
1078 /** Bits reserved for future use. */
1079 uint32_t u2Reserved : 2;
1080#ifdef PGMLIVESAVERAMPAGE_WITH_CRC32
1081 /** CRC-32 for the page. This is for internal consistency checks. */
1082 uint32_t u32Crc;
1083#endif
1084} PGMLIVESAVERAMPAGE;
1085#ifdef PGMLIVESAVERAMPAGE_WITH_CRC32
1086AssertCompileSize(PGMLIVESAVERAMPAGE, 8);
1087#else
1088AssertCompileSize(PGMLIVESAVERAMPAGE, 4);
1089#endif
1090/** Pointer to the per page live save tracking data. */
1091typedef PGMLIVESAVERAMPAGE *PPGMLIVESAVERAMPAGE;
1092
1093/** The max value of PGMLIVESAVERAMPAGE::cDirtied. */
1094#define PGMLIVSAVEPAGE_MAX_DIRTIED 0x00fffff0
1095
1096
1097/**
1098 * Ram range for GC Phys to HC Phys conversion.
1099 *
1100 * Can be used for HC Virt to GC Phys and HC Virt to HC Phys
1101 * conversions too, but we'll let MM handle that for now.
1102 *
1103 * This structure is used by linked lists in both GC and HC.
1104 */
1105typedef struct PGMRAMRANGE
1106{
1107 /** Start of the range. Page aligned. */
1108 RTGCPHYS GCPhys;
1109 /** Size of the range. (Page aligned of course). */
1110 RTGCPHYS cb;
1111 /** Pointer to the next RAM range - for R3. */
1112 R3PTRTYPE(struct PGMRAMRANGE *) pNextR3;
1113 /** Pointer to the next RAM range - for R0. */
1114 R0PTRTYPE(struct PGMRAMRANGE *) pNextR0;
1115 /** Pointer to the next RAM range - for RC. */
1116 RCPTRTYPE(struct PGMRAMRANGE *) pNextRC;
1117 /** PGM_RAM_RANGE_FLAGS_* flags. */
1118 uint32_t fFlags;
1119 /** Last address in the range (inclusive). Page aligned (-1). */
1120 RTGCPHYS GCPhysLast;
1121 /** Start of the HC mapping of the range. This is only used for MMIO2. */
1122 R3PTRTYPE(void *) pvR3;
1123 /** Live save per page tracking data. */
1124 R3PTRTYPE(PPGMLIVESAVERAMPAGE) paLSPages;
1125 /** The range description. */
1126 R3PTRTYPE(const char *) pszDesc;
1127 /** Pointer to self - R0 pointer. */
1128 R0PTRTYPE(struct PGMRAMRANGE *) pSelfR0;
1129 /** Pointer to self - RC pointer. */
1130 RCPTRTYPE(struct PGMRAMRANGE *) pSelfRC;
1131 /** Padding to make aPage aligned on sizeof(PGMPAGE). */
1132 uint32_t au32Alignment2[HC_ARCH_BITS == 32 ? 1 : 3];
1133 /** Array of physical guest page tracking structures. */
1134 PGMPAGE aPages[1];
1135} PGMRAMRANGE;
1136/** Pointer to Ram range for GC Phys to HC Phys conversion. */
1137typedef PGMRAMRANGE *PPGMRAMRANGE;
1138
1139/** @name PGMRAMRANGE::fFlags
1140 * @{ */
1141/** The RAM range is floating around as an independent guest mapping. */
1142#define PGM_RAM_RANGE_FLAGS_FLOATING RT_BIT(20)
1143/** Ad hoc RAM range for an ROM mapping. */
1144#define PGM_RAM_RANGE_FLAGS_AD_HOC_ROM RT_BIT(21)
1145/** Ad hoc RAM range for an MMIO mapping. */
1146#define PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO RT_BIT(22)
1147/** Ad hoc RAM range for an MMIO2 mapping. */
1148#define PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO2 RT_BIT(23)
1149/** @} */
1150
1151/** Tests if a RAM range is an ad hoc one or not.
1152 * @returns true/false.
1153 * @param pRam The RAM range.
1154 */
1155#define PGM_RAM_RANGE_IS_AD_HOC(pRam) \
1156 (!!( (pRam)->fFlags & (PGM_RAM_RANGE_FLAGS_AD_HOC_ROM | PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO | PGM_RAM_RANGE_FLAGS_AD_HOC_MMIO2) ) )
1157
1158
1159/**
1160 * Per page tracking structure for ROM image.
1161 *
1162 * A ROM image may have a shadow page, in which case we may have two pages
1163 * backing it. This structure contains the PGMPAGE for both while
1164 * PGMRAMRANGE have a copy of the active one. It is important that these
1165 * aren't out of sync in any regard other than page pool tracking data.
1166 */
1167typedef struct PGMROMPAGE
1168{
1169 /** The page structure for the virgin ROM page. */
1170 PGMPAGE Virgin;
1171 /** The page structure for the shadow RAM page. */
1172 PGMPAGE Shadow;
1173 /** The current protection setting. */
1174 PGMROMPROT enmProt;
1175 /** Live save status information. Makes use of unused alignment space. */
1176 struct
1177 {
1178 /** The previous protection value. */
1179 uint8_t u8Prot;
1180 /** Written to flag set by the handler. */
1181 bool fWrittenTo;
1182 /** Whether the shadow page is dirty or not. */
1183 bool fDirty;
1184 /** Whether it was dirtied in the recently. */
1185 bool fDirtiedRecently;
1186 } LiveSave;
1187} PGMROMPAGE;
1188AssertCompileSizeAlignment(PGMROMPAGE, 8);
1189/** Pointer to a ROM page tracking structure. */
1190typedef PGMROMPAGE *PPGMROMPAGE;
1191
1192
1193/**
1194 * A registered ROM image.
1195 *
1196 * This is needed to keep track of ROM image since they generally intrude
1197 * into a PGMRAMRANGE. It also keeps track of additional info like the
1198 * two page sets (read-only virgin and read-write shadow), the current
1199 * state of each page.
1200 *
1201 * Because access handlers cannot easily be executed in a different
1202 * context, the ROM ranges needs to be accessible and in all contexts.
1203 */
1204typedef struct PGMROMRANGE
1205{
1206 /** Pointer to the next range - R3. */
1207 R3PTRTYPE(struct PGMROMRANGE *) pNextR3;
1208 /** Pointer to the next range - R0. */
1209 R0PTRTYPE(struct PGMROMRANGE *) pNextR0;
1210 /** Pointer to the next range - RC. */
1211 RCPTRTYPE(struct PGMROMRANGE *) pNextRC;
1212 /** Pointer alignment */
1213 RTRCPTR RCPtrAlignment;
1214 /** Address of the range. */
1215 RTGCPHYS GCPhys;
1216 /** Address of the last byte in the range. */
1217 RTGCPHYS GCPhysLast;
1218 /** Size of the range. */
1219 RTGCPHYS cb;
1220 /** The flags (PGMPHYS_ROM_FLAGS_*). */
1221 uint32_t fFlags;
1222 /** The saved state range ID. */
1223 uint8_t idSavedState;
1224 /** Alignment padding. */
1225 uint8_t au8Alignment[3];
1226 /** Alignment padding ensuring that aPages is sizeof(PGMROMPAGE) aligned. */
1227 uint32_t au32Alignemnt[HC_ARCH_BITS == 32 ? 6 : 2];
1228 /** Pointer to the original bits when PGMPHYS_ROM_FLAGS_PERMANENT_BINARY was specified.
1229 * This is used for strictness checks. */
1230 R3PTRTYPE(const void *) pvOriginal;
1231 /** The ROM description. */
1232 R3PTRTYPE(const char *) pszDesc;
1233 /** The per page tracking structures. */
1234 PGMROMPAGE aPages[1];
1235} PGMROMRANGE;
1236/** Pointer to a ROM range. */
1237typedef PGMROMRANGE *PPGMROMRANGE;
1238
1239
1240/**
1241 * Live save per page data for an MMIO2 page.
1242 *
1243 * Not using PGMLIVESAVERAMPAGE here because we cannot use normal write monitoring
1244 * of MMIO2 pages. The current approach is using some optimisitic SHA-1 +
1245 * CRC-32 for detecting changes as well as special handling of zero pages. This
1246 * is a TEMPORARY measure which isn't perfect, but hopefully it is good enough
1247 * for speeding things up. (We're using SHA-1 and not SHA-256 or SHA-512
1248 * because of speed (2.5x and 6x slower).)
1249 *
1250 * @todo Implement dirty MMIO2 page reporting that can be enabled during live
1251 * save but normally is disabled. Since we can write monitore guest
1252 * accesses on our own, we only need this for host accesses. Shouldn't be
1253 * too difficult for DevVGA, VMMDev might be doable, the planned
1254 * networking fun will be fun since it involves ring-0.
1255 */
1256typedef struct PGMLIVESAVEMMIO2PAGE
1257{
1258 /** Set if the page is considered dirty. */
1259 bool fDirty;
1260 /** The number of scans this page has remained unchanged for.
1261 * Only updated for dirty pages. */
1262 uint8_t cUnchangedScans;
1263 /** Whether this page was zero at the last scan. */
1264 bool fZero;
1265 /** Alignment padding. */
1266 bool fReserved;
1267 /** CRC-32 for the first half of the page.
1268 * This is used together with u32CrcH2 to quickly detect changes in the page
1269 * during the non-final passes. */
1270 uint32_t u32CrcH1;
1271 /** CRC-32 for the second half of the page. */
1272 uint32_t u32CrcH2;
1273 /** SHA-1 for the saved page.
1274 * This is used in the final pass to skip pages without changes. */
1275 uint8_t abSha1Saved[RTSHA1_HASH_SIZE];
1276} PGMLIVESAVEMMIO2PAGE;
1277/** Pointer to a live save status data for an MMIO2 page. */
1278typedef PGMLIVESAVEMMIO2PAGE *PPGMLIVESAVEMMIO2PAGE;
1279
1280/**
1281 * A registered MMIO2 (= Device RAM) range.
1282 *
1283 * There are a few reason why we need to keep track of these
1284 * registrations. One of them is the deregistration & cleanup stuff,
1285 * while another is that the PGMRAMRANGE associated with such a region may
1286 * have to be removed from the ram range list.
1287 *
1288 * Overlapping with a RAM range has to be 100% or none at all. The pages
1289 * in the existing RAM range must not be ROM nor MMIO. A guru meditation
1290 * will be raised if a partial overlap or an overlap of ROM pages is
1291 * encountered. On an overlap we will free all the existing RAM pages and
1292 * put in the ram range pages instead.
1293 */
1294typedef struct PGMMMIO2RANGE
1295{
1296 /** The owner of the range. (a device) */
1297 PPDMDEVINSR3 pDevInsR3;
1298 /** Pointer to the ring-3 mapping of the allocation. */
1299 RTR3PTR pvR3;
1300 /** Pointer to the next range - R3. */
1301 R3PTRTYPE(struct PGMMMIO2RANGE *) pNextR3;
1302 /** Whether it's mapped or not. */
1303 bool fMapped;
1304 /** Whether it's overlapping or not. */
1305 bool fOverlapping;
1306 /** The PCI region number.
1307 * @remarks This ASSUMES that nobody will ever really need to have multiple
1308 * PCI devices with matching MMIO region numbers on a single device. */
1309 uint8_t iRegion;
1310 /** The saved state range ID. */
1311 uint8_t idSavedState;
1312 /** Alignment padding for putting the ram range on a PGMPAGE alignment boundrary. */
1313 uint8_t abAlignemnt[HC_ARCH_BITS == 32 ? 12 : 12];
1314 /** Live save per page tracking data. */
1315 R3PTRTYPE(PPGMLIVESAVEMMIO2PAGE) paLSPages;
1316 /** The associated RAM range. */
1317 PGMRAMRANGE RamRange;
1318} PGMMMIO2RANGE;
1319/** Pointer to a MMIO2 range. */
1320typedef PGMMMIO2RANGE *PPGMMMIO2RANGE;
1321
1322
1323
1324
1325/**
1326 * PGMPhysRead/Write cache entry
1327 */
1328typedef struct PGMPHYSCACHEENTRY
1329{
1330 /** R3 pointer to physical page. */
1331 R3PTRTYPE(uint8_t *) pbR3;
1332 /** GC Physical address for cache entry */
1333 RTGCPHYS GCPhys;
1334#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
1335 RTGCPHYS u32Padding0; /**< alignment padding. */
1336#endif
1337} PGMPHYSCACHEENTRY;
1338
1339/**
1340 * PGMPhysRead/Write cache to reduce REM memory access overhead
1341 */
1342typedef struct PGMPHYSCACHE
1343{
1344 /** Bitmap of valid cache entries */
1345 uint64_t aEntries;
1346 /** Cache entries */
1347 PGMPHYSCACHEENTRY Entry[PGM_MAX_PHYSCACHE_ENTRIES];
1348} PGMPHYSCACHE;
1349
1350
1351/** Pointer to an allocation chunk ring-3 mapping. */
1352typedef struct PGMCHUNKR3MAP *PPGMCHUNKR3MAP;
1353/** Pointer to an allocation chunk ring-3 mapping pointer. */
1354typedef PPGMCHUNKR3MAP *PPPGMCHUNKR3MAP;
1355
1356/**
1357 * Ring-3 tracking structore for an allocation chunk ring-3 mapping.
1358 *
1359 * The primary tree (Core) uses the chunk id as key.
1360 * The secondary tree (AgeCore) is used for ageing and uses ageing sequence number as key.
1361 */
1362typedef struct PGMCHUNKR3MAP
1363{
1364 /** The key is the chunk id. */
1365 AVLU32NODECORE Core;
1366 /** The key is the ageing sequence number. */
1367 AVLLU32NODECORE AgeCore;
1368 /** The current age thingy. */
1369 uint32_t iAge;
1370 /** The current reference count. */
1371 uint32_t volatile cRefs;
1372 /** The current permanent reference count. */
1373 uint32_t volatile cPermRefs;
1374 /** The mapping address. */
1375 void *pv;
1376} PGMCHUNKR3MAP;
1377
1378/**
1379 * Allocation chunk ring-3 mapping TLB entry.
1380 */
1381typedef struct PGMCHUNKR3MAPTLBE
1382{
1383 /** The chunk id. */
1384 uint32_t volatile idChunk;
1385#if HC_ARCH_BITS == 64
1386 uint32_t u32Padding; /**< alignment padding. */
1387#endif
1388 /** The chunk map. */
1389#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1390 R3PTRTYPE(PPGMCHUNKR3MAP) volatile pChunk;
1391#else
1392 R3R0PTRTYPE(PPGMCHUNKR3MAP) volatile pChunk;
1393#endif
1394} PGMCHUNKR3MAPTLBE;
1395/** Pointer to the an allocation chunk ring-3 mapping TLB entry. */
1396typedef PGMCHUNKR3MAPTLBE *PPGMCHUNKR3MAPTLBE;
1397
1398/** The number of TLB entries in PGMCHUNKR3MAPTLB.
1399 * @remark Must be a power of two value. */
1400#define PGM_CHUNKR3MAPTLB_ENTRIES 64
1401
1402/**
1403 * Allocation chunk ring-3 mapping TLB.
1404 *
1405 * @remarks We use a TLB to speed up lookups by avoiding walking the AVL.
1406 * At first glance this might look kinda odd since AVL trees are
1407 * supposed to give the most optimial lookup times of all trees
1408 * due to their balancing. However, take a tree with 1023 nodes
1409 * in it, that's 10 levels, meaning that most searches has to go
1410 * down 9 levels before they find what they want. This isn't fast
1411 * compared to a TLB hit. There is the factor of cache misses,
1412 * and of course the problem with trees and branch prediction.
1413 * This is why we use TLBs in front of most of the trees.
1414 *
1415 * @todo Generalize this TLB + AVL stuff, shouldn't be all that
1416 * difficult when we switch to the new inlined AVL trees (from kStuff).
1417 */
1418typedef struct PGMCHUNKR3MAPTLB
1419{
1420 /** The TLB entries. */
1421 PGMCHUNKR3MAPTLBE aEntries[PGM_CHUNKR3MAPTLB_ENTRIES];
1422} PGMCHUNKR3MAPTLB;
1423
1424/**
1425 * Calculates the index of a guest page in the Ring-3 Chunk TLB.
1426 * @returns Chunk TLB index.
1427 * @param idChunk The Chunk ID.
1428 */
1429#define PGM_CHUNKR3MAPTLB_IDX(idChunk) ( (idChunk) & (PGM_CHUNKR3MAPTLB_ENTRIES - 1) )
1430
1431
1432/**
1433 * Ring-3 guest page mapping TLB entry.
1434 * @remarks used in ring-0 as well at the moment.
1435 */
1436typedef struct PGMPAGER3MAPTLBE
1437{
1438 /** Address of the page. */
1439 RTGCPHYS volatile GCPhys;
1440 /** The guest page. */
1441#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1442 R3PTRTYPE(PPGMPAGE) volatile pPage;
1443#else
1444 R3R0PTRTYPE(PPGMPAGE) volatile pPage;
1445#endif
1446 /** Pointer to the page mapping tracking structure, PGMCHUNKR3MAP. */
1447#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1448 R3PTRTYPE(PPGMCHUNKR3MAP) volatile pMap;
1449#else
1450 R3R0PTRTYPE(PPGMCHUNKR3MAP) volatile pMap;
1451#endif
1452 /** The address */
1453#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1454 R3PTRTYPE(void *) volatile pv;
1455#else
1456 R3R0PTRTYPE(void *) volatile pv;
1457#endif
1458#if HC_ARCH_BITS == 32
1459 uint32_t u32Padding; /**< alignment padding. */
1460#endif
1461} PGMPAGER3MAPTLBE;
1462/** Pointer to an entry in the HC physical TLB. */
1463typedef PGMPAGER3MAPTLBE *PPGMPAGER3MAPTLBE;
1464
1465
1466/** The number of entries in the ring-3 guest page mapping TLB.
1467 * @remarks The value must be a power of two. */
1468#define PGM_PAGER3MAPTLB_ENTRIES 256
1469
1470/**
1471 * Ring-3 guest page mapping TLB.
1472 * @remarks used in ring-0 as well at the moment.
1473 */
1474typedef struct PGMPAGER3MAPTLB
1475{
1476 /** The TLB entries. */
1477 PGMPAGER3MAPTLBE aEntries[PGM_PAGER3MAPTLB_ENTRIES];
1478} PGMPAGER3MAPTLB;
1479/** Pointer to the ring-3 guest page mapping TLB. */
1480typedef PGMPAGER3MAPTLB *PPGMPAGER3MAPTLB;
1481
1482/**
1483 * Calculates the index of the TLB entry for the specified guest page.
1484 * @returns Physical TLB index.
1485 * @param GCPhys The guest physical address.
1486 */
1487#define PGM_PAGER3MAPTLB_IDX(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGM_PAGER3MAPTLB_ENTRIES - 1) )
1488
1489
1490/**
1491 * Mapping cache usage set entry.
1492 *
1493 * @remarks 16-bit ints was choosen as the set is not expected to be used beyond
1494 * the dynamic ring-0 and (to some extent) raw-mode context mapping
1495 * cache. If it's extended to include ring-3, well, then something will
1496 * have be changed here...
1497 */
1498typedef struct PGMMAPSETENTRY
1499{
1500 /** The mapping cache index. */
1501 uint16_t iPage;
1502 /** The number of references.
1503 * The max is UINT16_MAX - 1. */
1504 uint16_t cRefs;
1505#if HC_ARCH_BITS == 64
1506 uint32_t alignment;
1507#endif
1508 /** Pointer to the page. */
1509 RTR0PTR pvPage;
1510 /** The physical address for this entry. */
1511 RTHCPHYS HCPhys;
1512} PGMMAPSETENTRY;
1513/** Pointer to a mapping cache usage set entry. */
1514typedef PGMMAPSETENTRY *PPGMMAPSETENTRY;
1515
1516/**
1517 * Mapping cache usage set.
1518 *
1519 * This is used in ring-0 and the raw-mode context to track dynamic mappings
1520 * done during exits / traps. The set is
1521 */
1522typedef struct PGMMAPSET
1523{
1524 /** The number of occupied entries.
1525 * This is PGMMAPSET_CLOSED if the set is closed and we're not supposed to do
1526 * dynamic mappings. */
1527 uint32_t cEntries;
1528 /** The start of the current subset.
1529 * This is UINT32_MAX if no subset is currently open. */
1530 uint32_t iSubset;
1531 /** The index of the current CPU, only valid if the set is open. */
1532 int32_t iCpu;
1533 uint32_t alignment;
1534 /** The entries. */
1535 PGMMAPSETENTRY aEntries[64];
1536 /** HCPhys -> iEntry fast lookup table.
1537 * Use PGMMAPSET_HASH for hashing.
1538 * The entries may or may not be valid, check against cEntries. */
1539 uint8_t aiHashTable[128];
1540} PGMMAPSET;
1541AssertCompileSizeAlignment(PGMMAPSET, 8);
1542/** Pointer to the mapping cache set. */
1543typedef PGMMAPSET *PPGMMAPSET;
1544
1545/** PGMMAPSET::cEntries value for a closed set. */
1546#define PGMMAPSET_CLOSED UINT32_C(0xdeadc0fe)
1547
1548/** Hash function for aiHashTable. */
1549#define PGMMAPSET_HASH(HCPhys) (((HCPhys) >> PAGE_SHIFT) & 127)
1550
1551/** The max fill size (strict builds). */
1552#define PGMMAPSET_MAX_FILL (64U * 80U / 100U)
1553
1554
1555/** @name Context neutrual page mapper TLB.
1556 *
1557 * Hoping to avoid some code and bug duplication parts of the GCxxx->CCPtr
1558 * code is writting in a kind of context neutrual way. Time will show whether
1559 * this actually makes sense or not...
1560 *
1561 * @todo this needs to be reconsidered and dropped/redone since the ring-0
1562 * context ends up using a global mapping cache on some platforms
1563 * (darwin).
1564 *
1565 * @{ */
1566/** @typedef PPGMPAGEMAPTLB
1567 * The page mapper TLB pointer type for the current context. */
1568/** @typedef PPGMPAGEMAPTLB
1569 * The page mapper TLB entry pointer type for the current context. */
1570/** @typedef PPGMPAGEMAPTLB
1571 * The page mapper TLB entry pointer pointer type for the current context. */
1572/** @def PGM_PAGEMAPTLB_ENTRIES
1573 * The number of TLB entries in the page mapper TLB for the current context. */
1574/** @def PGM_PAGEMAPTLB_IDX
1575 * Calculate the TLB index for a guest physical address.
1576 * @returns The TLB index.
1577 * @param GCPhys The guest physical address. */
1578/** @typedef PPGMPAGEMAP
1579 * Pointer to a page mapper unit for current context. */
1580/** @typedef PPPGMPAGEMAP
1581 * Pointer to a page mapper unit pointer for current context. */
1582#ifdef IN_RC
1583// typedef PPGMPAGEGCMAPTLB PPGMPAGEMAPTLB;
1584// typedef PPGMPAGEGCMAPTLBE PPGMPAGEMAPTLBE;
1585// typedef PPGMPAGEGCMAPTLBE *PPPGMPAGEMAPTLBE;
1586# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGEGCMAPTLB_ENTRIES
1587# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGEGCMAPTLB_IDX(GCPhys)
1588 typedef void * PPGMPAGEMAP;
1589 typedef void ** PPPGMPAGEMAP;
1590//#elif IN_RING0
1591// typedef PPGMPAGER0MAPTLB PPGMPAGEMAPTLB;
1592// typedef PPGMPAGER0MAPTLBE PPGMPAGEMAPTLBE;
1593// typedef PPGMPAGER0MAPTLBE *PPPGMPAGEMAPTLBE;
1594//# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER0MAPTLB_ENTRIES
1595//# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER0MAPTLB_IDX(GCPhys)
1596// typedef PPGMCHUNKR0MAP PPGMPAGEMAP;
1597// typedef PPPGMCHUNKR0MAP PPPGMPAGEMAP;
1598#else
1599 typedef PPGMPAGER3MAPTLB PPGMPAGEMAPTLB;
1600 typedef PPGMPAGER3MAPTLBE PPGMPAGEMAPTLBE;
1601 typedef PPGMPAGER3MAPTLBE *PPPGMPAGEMAPTLBE;
1602# define PGM_PAGEMAPTLB_ENTRIES PGM_PAGER3MAPTLB_ENTRIES
1603# define PGM_PAGEMAPTLB_IDX(GCPhys) PGM_PAGER3MAPTLB_IDX(GCPhys)
1604 typedef PPGMCHUNKR3MAP PPGMPAGEMAP;
1605 typedef PPPGMCHUNKR3MAP PPPGMPAGEMAP;
1606#endif
1607/** @} */
1608
1609
1610/** @name PGM Pool Indexes.
1611 * Aka. the unique shadow page identifier.
1612 * @{ */
1613/** NIL page pool IDX. */
1614#define NIL_PGMPOOL_IDX 0
1615/** The first normal index. */
1616#define PGMPOOL_IDX_FIRST_SPECIAL 1
1617/** Page directory (32-bit root). */
1618#define PGMPOOL_IDX_PD 1
1619/** Page Directory Pointer Table (PAE root). */
1620#define PGMPOOL_IDX_PDPT 2
1621/** AMD64 CR3 level index.*/
1622#define PGMPOOL_IDX_AMD64_CR3 3
1623/** Nested paging root.*/
1624#define PGMPOOL_IDX_NESTED_ROOT 4
1625/** The first normal index. */
1626#define PGMPOOL_IDX_FIRST 5
1627/** The last valid index. (inclusive, 14 bits) */
1628#define PGMPOOL_IDX_LAST 0x3fff
1629/** @} */
1630
1631/** The NIL index for the parent chain. */
1632#define NIL_PGMPOOL_USER_INDEX ((uint16_t)0xffff)
1633#define NIL_PGMPOOL_PRESENT_INDEX ((uint16_t)0xffff)
1634
1635/**
1636 * Node in the chain linking a shadowed page to it's parent (user).
1637 */
1638#pragma pack(1)
1639typedef struct PGMPOOLUSER
1640{
1641 /** The index to the next item in the chain. NIL_PGMPOOL_USER_INDEX is no next. */
1642 uint16_t iNext;
1643 /** The user page index. */
1644 uint16_t iUser;
1645 /** Index into the user table. */
1646 uint32_t iUserTable;
1647} PGMPOOLUSER, *PPGMPOOLUSER;
1648typedef const PGMPOOLUSER *PCPGMPOOLUSER;
1649#pragma pack()
1650
1651
1652/** The NIL index for the phys ext chain. */
1653#define NIL_PGMPOOL_PHYSEXT_INDEX ((uint16_t)0xffff)
1654
1655/**
1656 * Node in the chain of physical cross reference extents.
1657 * @todo Calling this an 'extent' is not quite right, find a better name.
1658 */
1659#pragma pack(1)
1660typedef struct PGMPOOLPHYSEXT
1661{
1662 /** The index to the next item in the chain. NIL_PGMPOOL_PHYSEXT_INDEX is no next. */
1663 uint16_t iNext;
1664 /** The user page index. */
1665 uint16_t aidx[3];
1666} PGMPOOLPHYSEXT, *PPGMPOOLPHYSEXT;
1667typedef const PGMPOOLPHYSEXT *PCPGMPOOLPHYSEXT;
1668#pragma pack()
1669
1670
1671/**
1672 * The kind of page that's being shadowed.
1673 */
1674typedef enum PGMPOOLKIND
1675{
1676 /** The virtual invalid 0 entry. */
1677 PGMPOOLKIND_INVALID = 0,
1678 /** The entry is free (=unused). */
1679 PGMPOOLKIND_FREE,
1680
1681 /** Shw: 32-bit page table; Gst: no paging */
1682 PGMPOOLKIND_32BIT_PT_FOR_PHYS,
1683 /** Shw: 32-bit page table; Gst: 32-bit page table. */
1684 PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT,
1685 /** Shw: 32-bit page table; Gst: 4MB page. */
1686 PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB,
1687 /** Shw: PAE page table; Gst: no paging */
1688 PGMPOOLKIND_PAE_PT_FOR_PHYS,
1689 /** Shw: PAE page table; Gst: 32-bit page table. */
1690 PGMPOOLKIND_PAE_PT_FOR_32BIT_PT,
1691 /** Shw: PAE page table; Gst: Half of a 4MB page. */
1692 PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB,
1693 /** Shw: PAE page table; Gst: PAE page table. */
1694 PGMPOOLKIND_PAE_PT_FOR_PAE_PT,
1695 /** Shw: PAE page table; Gst: 2MB page. */
1696 PGMPOOLKIND_PAE_PT_FOR_PAE_2MB,
1697
1698 /** Shw: 32-bit page directory. Gst: 32-bit page directory. */
1699 PGMPOOLKIND_32BIT_PD,
1700 /** Shw: 32-bit page directory. Gst: no paging. */
1701 PGMPOOLKIND_32BIT_PD_PHYS,
1702 /** Shw: PAE page directory 0; Gst: 32-bit page directory. */
1703 PGMPOOLKIND_PAE_PD0_FOR_32BIT_PD,
1704 /** Shw: PAE page directory 1; Gst: 32-bit page directory. */
1705 PGMPOOLKIND_PAE_PD1_FOR_32BIT_PD,
1706 /** Shw: PAE page directory 2; Gst: 32-bit page directory. */
1707 PGMPOOLKIND_PAE_PD2_FOR_32BIT_PD,
1708 /** Shw: PAE page directory 3; Gst: 32-bit page directory. */
1709 PGMPOOLKIND_PAE_PD3_FOR_32BIT_PD,
1710 /** Shw: PAE page directory; Gst: PAE page directory. */
1711 PGMPOOLKIND_PAE_PD_FOR_PAE_PD,
1712 /** Shw: PAE page directory; Gst: no paging. */
1713 PGMPOOLKIND_PAE_PD_PHYS,
1714
1715 /** Shw: PAE page directory pointer table (legacy, 4 entries); Gst 32 bits paging. */
1716 PGMPOOLKIND_PAE_PDPT_FOR_32BIT,
1717 /** Shw: PAE page directory pointer table (legacy, 4 entries); Gst PAE PDPT. */
1718 PGMPOOLKIND_PAE_PDPT,
1719 /** Shw: PAE page directory pointer table (legacy, 4 entries); Gst: no paging. */
1720 PGMPOOLKIND_PAE_PDPT_PHYS,
1721
1722 /** Shw: 64-bit page directory pointer table; Gst: 64-bit page directory pointer table. */
1723 PGMPOOLKIND_64BIT_PDPT_FOR_64BIT_PDPT,
1724 /** Shw: 64-bit page directory pointer table; Gst: no paging */
1725 PGMPOOLKIND_64BIT_PDPT_FOR_PHYS,
1726 /** Shw: 64-bit page directory table; Gst: 64-bit page directory table. */
1727 PGMPOOLKIND_64BIT_PD_FOR_64BIT_PD,
1728 /** Shw: 64-bit page directory table; Gst: no paging */
1729 PGMPOOLKIND_64BIT_PD_FOR_PHYS, /* 22 */
1730
1731 /** Shw: 64-bit PML4; Gst: 64-bit PML4. */
1732 PGMPOOLKIND_64BIT_PML4,
1733
1734 /** Shw: EPT page directory pointer table; Gst: no paging */
1735 PGMPOOLKIND_EPT_PDPT_FOR_PHYS,
1736 /** Shw: EPT page directory table; Gst: no paging */
1737 PGMPOOLKIND_EPT_PD_FOR_PHYS,
1738 /** Shw: EPT page table; Gst: no paging */
1739 PGMPOOLKIND_EPT_PT_FOR_PHYS,
1740
1741 /** Shw: Root Nested paging table. */
1742 PGMPOOLKIND_ROOT_NESTED,
1743
1744 /** The last valid entry. */
1745 PGMPOOLKIND_LAST = PGMPOOLKIND_ROOT_NESTED
1746} PGMPOOLKIND;
1747
1748/**
1749 * The access attributes of the page; only applies to big pages.
1750 */
1751typedef enum
1752{
1753 PGMPOOLACCESS_DONTCARE = 0,
1754 PGMPOOLACCESS_USER_RW,
1755 PGMPOOLACCESS_USER_R,
1756 PGMPOOLACCESS_USER_RW_NX,
1757 PGMPOOLACCESS_USER_R_NX,
1758 PGMPOOLACCESS_SUPERVISOR_RW,
1759 PGMPOOLACCESS_SUPERVISOR_R,
1760 PGMPOOLACCESS_SUPERVISOR_RW_NX,
1761 PGMPOOLACCESS_SUPERVISOR_R_NX
1762} PGMPOOLACCESS;
1763
1764/**
1765 * The tracking data for a page in the pool.
1766 */
1767typedef struct PGMPOOLPAGE
1768{
1769 /** AVL node code with the (R3) physical address of this page. */
1770 AVLOHCPHYSNODECORE Core;
1771 /** Pointer to the R3 mapping of the page. */
1772#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
1773 R3PTRTYPE(void *) pvPageR3;
1774#else
1775 R3R0PTRTYPE(void *) pvPageR3;
1776#endif
1777 /** The guest physical address. */
1778#if HC_ARCH_BITS == 32 && GC_ARCH_BITS == 64
1779 uint32_t Alignment0;
1780#endif
1781 RTGCPHYS GCPhys;
1782
1783 /** Access handler statistics to determine whether the guest is (re)initializing a page table. */
1784 RTGCPTR pvLastAccessHandlerRip;
1785 RTGCPTR pvLastAccessHandlerFault;
1786 uint64_t cLastAccessHandlerCount;
1787
1788 /** The kind of page we're shadowing. (This is really a PGMPOOLKIND enum.) */
1789 uint8_t enmKind;
1790 /** The subkind of page we're shadowing. (This is really a PGMPOOLACCESS enum.) */
1791 uint8_t enmAccess;
1792 /** The index of this page. */
1793 uint16_t idx;
1794 /** The next entry in the list this page currently resides in.
1795 * It's either in the free list or in the GCPhys hash. */
1796 uint16_t iNext;
1797 /** Head of the user chain. NIL_PGMPOOL_USER_INDEX if not currently in use. */
1798 uint16_t iUserHead;
1799 /** The number of present entries. */
1800 uint16_t cPresent;
1801 /** The first entry in the table which is present. */
1802 uint16_t iFirstPresent;
1803 /** The number of modifications to the monitored page. */
1804 uint16_t cModifications;
1805 /** The next modified page. NIL_PGMPOOL_IDX if tail. */
1806 uint16_t iModifiedNext;
1807 /** The previous modified page. NIL_PGMPOOL_IDX if head. */
1808 uint16_t iModifiedPrev;
1809 /** The next page sharing access handler. NIL_PGMPOOL_IDX if tail. */
1810 uint16_t iMonitoredNext;
1811 /** The previous page sharing access handler. NIL_PGMPOOL_IDX if head. */
1812 uint16_t iMonitoredPrev;
1813 /** The next page in the age list. */
1814 uint16_t iAgeNext;
1815 /** The previous page in the age list. */
1816 uint16_t iAgePrev;
1817 /** Used to indicate that the page is zeroed. */
1818 bool fZeroed;
1819 /** Used to indicate that a PT has non-global entries. */
1820 bool fSeenNonGlobal;
1821 /** Used to indicate that we're monitoring writes to the guest page. */
1822 bool fMonitored;
1823 /** Used to indicate that the page is in the cache (e.g. in the GCPhys hash).
1824 * (All pages are in the age list.) */
1825 bool fCached;
1826 /** This is used by the R3 access handlers when invoked by an async thread.
1827 * It's a hack required because of REMR3NotifyHandlerPhysicalDeregister. */
1828 bool volatile fReusedFlushPending;
1829 /** Used to mark the page as dirty (write monitoring if temporarily off. */
1830 bool fDirty;
1831
1832 /** Used to indicate that this page can't be flushed. Important for cr3 root pages or shadow pae pd pages). */
1833 uint32_t cLocked;
1834 uint32_t idxDirty;
1835 RTGCPTR pvDirtyFault;
1836} PGMPOOLPAGE, *PPGMPOOLPAGE, **PPPGMPOOLPAGE;
1837/** Pointer to a const pool page. */
1838typedef PGMPOOLPAGE const *PCPGMPOOLPAGE;
1839
1840
1841/** The hash table size. */
1842# define PGMPOOL_HASH_SIZE 0x40
1843/** The hash function. */
1844# define PGMPOOL_HASH(GCPhys) ( ((GCPhys) >> PAGE_SHIFT) & (PGMPOOL_HASH_SIZE - 1) )
1845
1846
1847/**
1848 * The shadow page pool instance data.
1849 *
1850 * It's all one big allocation made at init time, except for the
1851 * pages that is. The user nodes follows immediatly after the
1852 * page structures.
1853 */
1854typedef struct PGMPOOL
1855{
1856 /** The VM handle - R3 Ptr. */
1857 PVMR3 pVMR3;
1858 /** The VM handle - R0 Ptr. */
1859 PVMR0 pVMR0;
1860 /** The VM handle - RC Ptr. */
1861 PVMRC pVMRC;
1862 /** The max pool size. This includes the special IDs. */
1863 uint16_t cMaxPages;
1864 /** The current pool size. */
1865 uint16_t cCurPages;
1866 /** The head of the free page list. */
1867 uint16_t iFreeHead;
1868 /* Padding. */
1869 uint16_t u16Padding;
1870 /** Head of the chain of free user nodes. */
1871 uint16_t iUserFreeHead;
1872 /** The number of user nodes we've allocated. */
1873 uint16_t cMaxUsers;
1874 /** The number of present page table entries in the entire pool. */
1875 uint32_t cPresent;
1876 /** Pointer to the array of user nodes - RC pointer. */
1877 RCPTRTYPE(PPGMPOOLUSER) paUsersRC;
1878 /** Pointer to the array of user nodes - R3 pointer. */
1879 R3PTRTYPE(PPGMPOOLUSER) paUsersR3;
1880 /** Pointer to the array of user nodes - R0 pointer. */
1881 R0PTRTYPE(PPGMPOOLUSER) paUsersR0;
1882 /** Head of the chain of free phys ext nodes. */
1883 uint16_t iPhysExtFreeHead;
1884 /** The number of user nodes we've allocated. */
1885 uint16_t cMaxPhysExts;
1886 /** Pointer to the array of physical xref extent - RC pointer. */
1887 RCPTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsRC;
1888 /** Pointer to the array of physical xref extent nodes - R3 pointer. */
1889 R3PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsR3;
1890 /** Pointer to the array of physical xref extent nodes - R0 pointer. */
1891 R0PTRTYPE(PPGMPOOLPHYSEXT) paPhysExtsR0;
1892 /** Hash table for GCPhys addresses. */
1893 uint16_t aiHash[PGMPOOL_HASH_SIZE];
1894 /** The head of the age list. */
1895 uint16_t iAgeHead;
1896 /** The tail of the age list. */
1897 uint16_t iAgeTail;
1898 /** Set if the cache is enabled. */
1899 bool fCacheEnabled;
1900 /** Alignment padding. */
1901 bool afPadding1[3];
1902 /** Head of the list of modified pages. */
1903 uint16_t iModifiedHead;
1904 /** The current number of modified pages. */
1905 uint16_t cModifiedPages;
1906 /** Access handler, RC. */
1907 RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnAccessHandlerRC;
1908 /** Access handler, R0. */
1909 R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnAccessHandlerR0;
1910 /** Access handler, R3. */
1911 R3PTRTYPE(PFNPGMR3PHYSHANDLER) pfnAccessHandlerR3;
1912 /** The access handler description (R3 ptr). */
1913 R3PTRTYPE(const char *) pszAccessHandler;
1914# if HC_ARCH_BITS == 32
1915 /** Alignment padding. */
1916 uint32_t u32Padding2;
1917# endif
1918 /* Next available slot. */
1919 uint32_t idxFreeDirtyPage;
1920 /* Number of active dirty pages. */
1921 uint32_t cDirtyPages;
1922 /* Array of current dirty pgm pool page indices. */
1923 uint16_t aIdxDirtyPages[16];
1924 uint64_t aDirtyPages[16][512];
1925 /** The number of pages currently in use. */
1926 uint16_t cUsedPages;
1927#ifdef VBOX_WITH_STATISTICS
1928 /** The high water mark for cUsedPages. */
1929 uint16_t cUsedPagesHigh;
1930 uint32_t Alignment1; /**< Align the next member on a 64-bit boundrary. */
1931 /** Profiling pgmPoolAlloc(). */
1932 STAMPROFILEADV StatAlloc;
1933 /** Profiling pgmR3PoolClearDoIt(). */
1934 STAMPROFILE StatClearAll;
1935 /** Profiling pgmR3PoolReset(). */
1936 STAMPROFILE StatR3Reset;
1937 /** Profiling pgmPoolFlushPage(). */
1938 STAMPROFILE StatFlushPage;
1939 /** Profiling pgmPoolFree(). */
1940 STAMPROFILE StatFree;
1941 /** Counting explicit flushes by PGMPoolFlushPage(). */
1942 STAMCOUNTER StatForceFlushPage;
1943 /** Counting explicit flushes of dirty pages by PGMPoolFlushPage(). */
1944 STAMCOUNTER StatForceFlushDirtyPage;
1945 /** Counting flushes for reused pages. */
1946 STAMCOUNTER StatForceFlushReused;
1947 /** Profiling time spent zeroing pages. */
1948 STAMPROFILE StatZeroPage;
1949 /** Profiling of pgmPoolTrackDeref. */
1950 STAMPROFILE StatTrackDeref;
1951 /** Profiling pgmTrackFlushGCPhysPT. */
1952 STAMPROFILE StatTrackFlushGCPhysPT;
1953 /** Profiling pgmTrackFlushGCPhysPTs. */
1954 STAMPROFILE StatTrackFlushGCPhysPTs;
1955 /** Profiling pgmTrackFlushGCPhysPTsSlow. */
1956 STAMPROFILE StatTrackFlushGCPhysPTsSlow;
1957 /** Number of times we've been out of user records. */
1958 STAMCOUNTER StatTrackFreeUpOneUser;
1959 /** Nr of flushed entries. */
1960 STAMCOUNTER StatTrackFlushEntry;
1961 /** Nr of updated entries. */
1962 STAMCOUNTER StatTrackFlushEntryKeep;
1963 /** Profiling deref activity related tracking GC physical pages. */
1964 STAMPROFILE StatTrackDerefGCPhys;
1965 /** Number of linear searches for a HCPhys in the ram ranges. */
1966 STAMCOUNTER StatTrackLinearRamSearches;
1967 /** The number of failing pgmPoolTrackPhysExtAlloc calls. */
1968 STAMCOUNTER StamTrackPhysExtAllocFailures;
1969 /** Profiling the RC/R0 access handler. */
1970 STAMPROFILE StatMonitorRZ;
1971 /** Times we've failed interpreting the instruction. */
1972 STAMCOUNTER StatMonitorRZEmulateInstr;
1973 /** Profiling the pgmPoolFlushPage calls made from the RC/R0 access handler. */
1974 STAMPROFILE StatMonitorRZFlushPage;
1975 /* Times we've detected a page table reinit. */
1976 STAMCOUNTER StatMonitorRZFlushReinit;
1977 /** Counting flushes for pages that are modified too often. */
1978 STAMCOUNTER StatMonitorRZFlushModOverflow;
1979 /** Times we've detected fork(). */
1980 STAMCOUNTER StatMonitorRZFork;
1981 /** Profiling the RC/R0 access we've handled (except REP STOSD). */
1982 STAMPROFILE StatMonitorRZHandled;
1983 /** Times we've failed interpreting a patch code instruction. */
1984 STAMCOUNTER StatMonitorRZIntrFailPatch1;
1985 /** Times we've failed interpreting a patch code instruction during flushing. */
1986 STAMCOUNTER StatMonitorRZIntrFailPatch2;
1987 /** The number of times we've seen rep prefixes we can't handle. */
1988 STAMCOUNTER StatMonitorRZRepPrefix;
1989 /** Profiling the REP STOSD cases we've handled. */
1990 STAMPROFILE StatMonitorRZRepStosd;
1991 /** Nr of handled PT faults. */
1992 STAMCOUNTER StatMonitorRZFaultPT;
1993 /** Nr of handled PD faults. */
1994 STAMCOUNTER StatMonitorRZFaultPD;
1995 /** Nr of handled PDPT faults. */
1996 STAMCOUNTER StatMonitorRZFaultPDPT;
1997 /** Nr of handled PML4 faults. */
1998 STAMCOUNTER StatMonitorRZFaultPML4;
1999
2000 /** Profiling the R3 access handler. */
2001 STAMPROFILE StatMonitorR3;
2002 /** Times we've failed interpreting the instruction. */
2003 STAMCOUNTER StatMonitorR3EmulateInstr;
2004 /** Profiling the pgmPoolFlushPage calls made from the R3 access handler. */
2005 STAMPROFILE StatMonitorR3FlushPage;
2006 /* Times we've detected a page table reinit. */
2007 STAMCOUNTER StatMonitorR3FlushReinit;
2008 /** Counting flushes for pages that are modified too often. */
2009 STAMCOUNTER StatMonitorR3FlushModOverflow;
2010 /** Times we've detected fork(). */
2011 STAMCOUNTER StatMonitorR3Fork;
2012 /** Profiling the R3 access we've handled (except REP STOSD). */
2013 STAMPROFILE StatMonitorR3Handled;
2014 /** The number of times we've seen rep prefixes we can't handle. */
2015 STAMCOUNTER StatMonitorR3RepPrefix;
2016 /** Profiling the REP STOSD cases we've handled. */
2017 STAMPROFILE StatMonitorR3RepStosd;
2018 /** Nr of handled PT faults. */
2019 STAMCOUNTER StatMonitorR3FaultPT;
2020 /** Nr of handled PD faults. */
2021 STAMCOUNTER StatMonitorR3FaultPD;
2022 /** Nr of handled PDPT faults. */
2023 STAMCOUNTER StatMonitorR3FaultPDPT;
2024 /** Nr of handled PML4 faults. */
2025 STAMCOUNTER StatMonitorR3FaultPML4;
2026 /** The number of times we're called in an async thread an need to flush. */
2027 STAMCOUNTER StatMonitorR3Async;
2028 /** Times we've called pgmPoolResetDirtyPages (and there were dirty page). */
2029 STAMCOUNTER StatResetDirtyPages;
2030 /** Times we've called pgmPoolAddDirtyPage. */
2031 STAMCOUNTER StatDirtyPage;
2032 /** Times we've had to flush duplicates for dirty page management. */
2033 STAMCOUNTER StatDirtyPageDupFlush;
2034 /** Times we've had to flush because of overflow. */
2035 STAMCOUNTER StatDirtyPageOverFlowFlush;
2036
2037 /** The high wather mark for cModifiedPages. */
2038 uint16_t cModifiedPagesHigh;
2039 uint16_t Alignment2[3]; /**< Align the next member on a 64-bit boundrary. */
2040
2041 /** The number of cache hits. */
2042 STAMCOUNTER StatCacheHits;
2043 /** The number of cache misses. */
2044 STAMCOUNTER StatCacheMisses;
2045 /** The number of times we've got a conflict of 'kind' in the cache. */
2046 STAMCOUNTER StatCacheKindMismatches;
2047 /** Number of times we've been out of pages. */
2048 STAMCOUNTER StatCacheFreeUpOne;
2049 /** The number of cacheable allocations. */
2050 STAMCOUNTER StatCacheCacheable;
2051 /** The number of uncacheable allocations. */
2052 STAMCOUNTER StatCacheUncacheable;
2053#else
2054 uint32_t Alignment3; /**< Align the next member on a 64-bit boundrary. */
2055#endif
2056 /** The AVL tree for looking up a page by its HC physical address. */
2057 AVLOHCPHYSTREE HCPhysTree;
2058 uint32_t Alignment4; /**< Align the next member on a 64-bit boundrary. */
2059 /** Array of pages. (cMaxPages in length)
2060 * The Id is the index into thist array.
2061 */
2062 PGMPOOLPAGE aPages[PGMPOOL_IDX_FIRST];
2063} PGMPOOL, *PPGMPOOL, **PPPGMPOOL;
2064AssertCompileMemberAlignment(PGMPOOL, iModifiedHead, 8);
2065AssertCompileMemberAlignment(PGMPOOL, aDirtyPages, 8);
2066AssertCompileMemberAlignment(PGMPOOL, cUsedPages, 8);
2067#ifdef VBOX_WITH_STATISTICS
2068AssertCompileMemberAlignment(PGMPOOL, StatAlloc, 8);
2069#endif
2070AssertCompileMemberAlignment(PGMPOOL, aPages, 8);
2071
2072
2073/** @def PGMPOOL_PAGE_2_PTR
2074 * Maps a pool page pool into the current context.
2075 *
2076 * @returns VBox status code.
2077 * @param pVM The VM handle.
2078 * @param pPage The pool page.
2079 *
2080 * @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
2081 * small page window employeed by that function. Be careful.
2082 * @remark There is no need to assert on the result.
2083 */
2084#if defined(IN_RC)
2085# define PGMPOOL_PAGE_2_PTR(pVM, pPage) pgmPoolMapPageInlined(&(pVM)->pgm.s, (pPage))
2086#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
2087# define PGMPOOL_PAGE_2_PTR(pVM, pPage) pgmPoolMapPageInlined(&(pVM)->pgm.s, (pPage))
2088#elif defined(VBOX_STRICT)
2089# define PGMPOOL_PAGE_2_PTR(pVM, pPage) pgmPoolMapPageStrict(pPage)
2090DECLINLINE(void *) pgmPoolMapPageStrict(PPGMPOOLPAGE pPage)
2091{
2092 Assert(pPage && pPage->pvPageR3);
2093 return pPage->pvPageR3;
2094}
2095#else
2096# define PGMPOOL_PAGE_2_PTR(pVM, pPage) ((pPage)->pvPageR3)
2097#endif
2098
2099/** @def PGMPOOL_PAGE_2_PTR_BY_PGM
2100 * Maps a pool page pool into the current context.
2101 *
2102 * @returns VBox status code.
2103 * @param pPGM Pointer to the PGM instance data.
2104 * @param pPage The pool page.
2105 *
2106 * @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
2107 * small page window employeed by that function. Be careful.
2108 * @remark There is no need to assert on the result.
2109 */
2110#if defined(IN_RC)
2111# define PGMPOOL_PAGE_2_PTR_BY_PGM(pPGM, pPage) pgmPoolMapPageInlined(pPGM, (pPage))
2112#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
2113# define PGMPOOL_PAGE_2_PTR_BY_PGM(pPGM, pPage) pgmPoolMapPageInlined(pPGM, (pPage))
2114#else
2115# define PGMPOOL_PAGE_2_PTR_BY_PGM(pPGM, pPage) PGMPOOL_PAGE_2_PTR(PGM2VM(pPGM), pPage)
2116#endif
2117
2118/** @def PGMPOOL_PAGE_2_PTR_BY_PGMCPU
2119 * Maps a pool page pool into the current context.
2120 *
2121 * @returns VBox status code.
2122 * @param pPGM Pointer to the PGMCPU instance data.
2123 * @param pPage The pool page.
2124 *
2125 * @remark In RC this uses PGMGCDynMapHCPage(), so it will consume of the
2126 * small page window employeed by that function. Be careful.
2127 * @remark There is no need to assert on the result.
2128 */
2129#if defined(IN_RC)
2130# define PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPage) pgmPoolMapPageInlined(PGMCPU2PGM(pPGM), (pPage))
2131#elif defined(VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0)
2132# define PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPage) pgmPoolMapPageInlined(PGMCPU2PGM(pPGM), (pPage))
2133#else
2134# define PGMPOOL_PAGE_2_PTR_BY_PGMCPU(pPGM, pPage) PGMPOOL_PAGE_2_PTR(PGMCPU2VM(pPGM), pPage)
2135#endif
2136
2137
2138/** @name Per guest page tracking data.
2139 * This is currently as a 16-bit word in the PGMPAGE structure, the idea though
2140 * is to use more bits for it and split it up later on. But for now we'll play
2141 * safe and change as little as possible.
2142 *
2143 * The 16-bit word has two parts:
2144 *
2145 * The first 14-bit forms the @a idx field. It is either the index of a page in
2146 * the shadow page pool, or and index into the extent list.
2147 *
2148 * The 2 topmost bits makes up the @a cRefs field, which counts the number of
2149 * shadow page pool references to the page. If cRefs equals
2150 * PGMPOOL_CREFS_PHYSEXT, then the @a idx field is an indext into the extent
2151 * (misnomer) table and not the shadow page pool.
2152 *
2153 * See PGM_PAGE_GET_TRACKING and PGM_PAGE_SET_TRACKING for how to get and set
2154 * the 16-bit word.
2155 *
2156 * @{ */
2157/** The shift count for getting to the cRefs part. */
2158#define PGMPOOL_TD_CREFS_SHIFT 14
2159/** The mask applied after shifting the tracking data down by
2160 * PGMPOOL_TD_CREFS_SHIFT. */
2161#define PGMPOOL_TD_CREFS_MASK 0x3
2162/** The cRef value used to indiciate that the idx is the head of a
2163 * physical cross reference list. */
2164#define PGMPOOL_TD_CREFS_PHYSEXT PGMPOOL_TD_CREFS_MASK
2165/** The shift used to get idx. */
2166#define PGMPOOL_TD_IDX_SHIFT 0
2167/** The mask applied to the idx after shifting down by PGMPOOL_TD_IDX_SHIFT. */
2168#define PGMPOOL_TD_IDX_MASK 0x3fff
2169/** The idx value when we're out of of PGMPOOLPHYSEXT entries or/and there are
2170 * simply too many mappings of this page. */
2171#define PGMPOOL_TD_IDX_OVERFLOWED PGMPOOL_TD_IDX_MASK
2172
2173/** @def PGMPOOL_TD_MAKE
2174 * Makes a 16-bit tracking data word.
2175 *
2176 * @returns tracking data.
2177 * @param cRefs The @a cRefs field. Must be within bounds!
2178 * @param idx The @a idx field. Must also be within bounds! */
2179#define PGMPOOL_TD_MAKE(cRefs, idx) ( ((cRefs) << PGMPOOL_TD_CREFS_SHIFT) | (idx) )
2180
2181/** @def PGMPOOL_TD_GET_CREFS
2182 * Get the @a cRefs field from a tracking data word.
2183 *
2184 * @returns The @a cRefs field
2185 * @param u16 The tracking data word. */
2186#define PGMPOOL_TD_GET_CREFS(u16) ( ((u16) >> PGMPOOL_TD_CREFS_SHIFT) & PGMPOOL_TD_CREFS_MASK )
2187
2188/** @def PGMPOOL_TD_GET_IDX
2189 * Get the @a idx field from a tracking data word.
2190 *
2191 * @returns The @a idx field
2192 * @param u16 The tracking data word. */
2193#define PGMPOOL_TD_GET_IDX(u16) ( ((u16) >> PGMPOOL_TD_IDX_SHIFT) & PGMPOOL_TD_IDX_MASK )
2194/** @} */
2195
2196
2197/**
2198 * Trees are using self relative offsets as pointers.
2199 * So, all its data, including the root pointer, must be in the heap for HC and GC
2200 * to have the same layout.
2201 */
2202typedef struct PGMTREES
2203{
2204 /** Physical access handlers (AVL range+offsetptr tree). */
2205 AVLROGCPHYSTREE PhysHandlers;
2206 /** Virtual access handlers (AVL range + GC ptr tree). */
2207 AVLROGCPTRTREE VirtHandlers;
2208 /** Virtual access handlers (Phys range AVL range + offsetptr tree). */
2209 AVLROGCPHYSTREE PhysToVirtHandlers;
2210 /** Virtual access handlers for the hypervisor (AVL range + GC ptr tree). */
2211 AVLROGCPTRTREE HyperVirtHandlers;
2212} PGMTREES;
2213/** Pointer to PGM trees. */
2214typedef PGMTREES *PPGMTREES;
2215
2216
2217/** @name Paging mode macros
2218 * @{ */
2219#ifdef IN_RC
2220# define PGM_CTX(a,b) a##RC##b
2221# define PGM_CTX_STR(a,b) a "GC" b
2222# define PGM_CTX_DECL(type) VMMRCDECL(type)
2223#else
2224# ifdef IN_RING3
2225# define PGM_CTX(a,b) a##R3##b
2226# define PGM_CTX_STR(a,b) a "R3" b
2227# define PGM_CTX_DECL(type) DECLCALLBACK(type)
2228# else
2229# define PGM_CTX(a,b) a##R0##b
2230# define PGM_CTX_STR(a,b) a "R0" b
2231# define PGM_CTX_DECL(type) VMMDECL(type)
2232# endif
2233#endif
2234
2235#define PGM_GST_NAME_REAL(name) PGM_CTX(pgm,GstReal##name)
2236#define PGM_GST_NAME_RC_REAL_STR(name) "pgmRCGstReal" #name
2237#define PGM_GST_NAME_R0_REAL_STR(name) "pgmR0GstReal" #name
2238#define PGM_GST_NAME_PROT(name) PGM_CTX(pgm,GstProt##name)
2239#define PGM_GST_NAME_RC_PROT_STR(name) "pgmRCGstProt" #name
2240#define PGM_GST_NAME_R0_PROT_STR(name) "pgmR0GstProt" #name
2241#define PGM_GST_NAME_32BIT(name) PGM_CTX(pgm,Gst32Bit##name)
2242#define PGM_GST_NAME_RC_32BIT_STR(name) "pgmRCGst32Bit" #name
2243#define PGM_GST_NAME_R0_32BIT_STR(name) "pgmR0Gst32Bit" #name
2244#define PGM_GST_NAME_PAE(name) PGM_CTX(pgm,GstPAE##name)
2245#define PGM_GST_NAME_RC_PAE_STR(name) "pgmRCGstPAE" #name
2246#define PGM_GST_NAME_R0_PAE_STR(name) "pgmR0GstPAE" #name
2247#define PGM_GST_NAME_AMD64(name) PGM_CTX(pgm,GstAMD64##name)
2248#define PGM_GST_NAME_RC_AMD64_STR(name) "pgmRCGstAMD64" #name
2249#define PGM_GST_NAME_R0_AMD64_STR(name) "pgmR0GstAMD64" #name
2250#define PGM_GST_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Gst##name))
2251#define PGM_GST_DECL(type, name) PGM_CTX_DECL(type) PGM_GST_NAME(name)
2252
2253#define PGM_SHW_NAME_32BIT(name) PGM_CTX(pgm,Shw32Bit##name)
2254#define PGM_SHW_NAME_RC_32BIT_STR(name) "pgmRCShw32Bit" #name
2255#define PGM_SHW_NAME_R0_32BIT_STR(name) "pgmR0Shw32Bit" #name
2256#define PGM_SHW_NAME_PAE(name) PGM_CTX(pgm,ShwPAE##name)
2257#define PGM_SHW_NAME_RC_PAE_STR(name) "pgmRCShwPAE" #name
2258#define PGM_SHW_NAME_R0_PAE_STR(name) "pgmR0ShwPAE" #name
2259#define PGM_SHW_NAME_AMD64(name) PGM_CTX(pgm,ShwAMD64##name)
2260#define PGM_SHW_NAME_RC_AMD64_STR(name) "pgmRCShwAMD64" #name
2261#define PGM_SHW_NAME_R0_AMD64_STR(name) "pgmR0ShwAMD64" #name
2262#define PGM_SHW_NAME_NESTED(name) PGM_CTX(pgm,ShwNested##name)
2263#define PGM_SHW_NAME_RC_NESTED_STR(name) "pgmRCShwNested" #name
2264#define PGM_SHW_NAME_R0_NESTED_STR(name) "pgmR0ShwNested" #name
2265#define PGM_SHW_NAME_EPT(name) PGM_CTX(pgm,ShwEPT##name)
2266#define PGM_SHW_NAME_RC_EPT_STR(name) "pgmRCShwEPT" #name
2267#define PGM_SHW_NAME_R0_EPT_STR(name) "pgmR0ShwEPT" #name
2268#define PGM_SHW_DECL(type, name) PGM_CTX_DECL(type) PGM_SHW_NAME(name)
2269#define PGM_SHW_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Shw##name))
2270
2271/* Shw_Gst */
2272#define PGM_BTH_NAME_32BIT_REAL(name) PGM_CTX(pgm,Bth32BitReal##name)
2273#define PGM_BTH_NAME_32BIT_PROT(name) PGM_CTX(pgm,Bth32BitProt##name)
2274#define PGM_BTH_NAME_32BIT_32BIT(name) PGM_CTX(pgm,Bth32Bit32Bit##name)
2275#define PGM_BTH_NAME_PAE_REAL(name) PGM_CTX(pgm,BthPAEReal##name)
2276#define PGM_BTH_NAME_PAE_PROT(name) PGM_CTX(pgm,BthPAEProt##name)
2277#define PGM_BTH_NAME_PAE_32BIT(name) PGM_CTX(pgm,BthPAE32Bit##name)
2278#define PGM_BTH_NAME_PAE_PAE(name) PGM_CTX(pgm,BthPAEPAE##name)
2279#define PGM_BTH_NAME_AMD64_PROT(name) PGM_CTX(pgm,BthAMD64Prot##name)
2280#define PGM_BTH_NAME_AMD64_AMD64(name) PGM_CTX(pgm,BthAMD64AMD64##name)
2281#define PGM_BTH_NAME_NESTED_REAL(name) PGM_CTX(pgm,BthNestedReal##name)
2282#define PGM_BTH_NAME_NESTED_PROT(name) PGM_CTX(pgm,BthNestedProt##name)
2283#define PGM_BTH_NAME_NESTED_32BIT(name) PGM_CTX(pgm,BthNested32Bit##name)
2284#define PGM_BTH_NAME_NESTED_PAE(name) PGM_CTX(pgm,BthNestedPAE##name)
2285#define PGM_BTH_NAME_NESTED_AMD64(name) PGM_CTX(pgm,BthNestedAMD64##name)
2286#define PGM_BTH_NAME_EPT_REAL(name) PGM_CTX(pgm,BthEPTReal##name)
2287#define PGM_BTH_NAME_EPT_PROT(name) PGM_CTX(pgm,BthEPTProt##name)
2288#define PGM_BTH_NAME_EPT_32BIT(name) PGM_CTX(pgm,BthEPT32Bit##name)
2289#define PGM_BTH_NAME_EPT_PAE(name) PGM_CTX(pgm,BthEPTPAE##name)
2290#define PGM_BTH_NAME_EPT_AMD64(name) PGM_CTX(pgm,BthEPTAMD64##name)
2291
2292#define PGM_BTH_NAME_RC_32BIT_REAL_STR(name) "pgmRCBth32BitReal" #name
2293#define PGM_BTH_NAME_RC_32BIT_PROT_STR(name) "pgmRCBth32BitProt" #name
2294#define PGM_BTH_NAME_RC_32BIT_32BIT_STR(name) "pgmRCBth32Bit32Bit" #name
2295#define PGM_BTH_NAME_RC_PAE_REAL_STR(name) "pgmRCBthPAEReal" #name
2296#define PGM_BTH_NAME_RC_PAE_PROT_STR(name) "pgmRCBthPAEProt" #name
2297#define PGM_BTH_NAME_RC_PAE_32BIT_STR(name) "pgmRCBthPAE32Bit" #name
2298#define PGM_BTH_NAME_RC_PAE_PAE_STR(name) "pgmRCBthPAEPAE" #name
2299#define PGM_BTH_NAME_RC_AMD64_AMD64_STR(name) "pgmRCBthAMD64AMD64" #name
2300#define PGM_BTH_NAME_RC_NESTED_REAL_STR(name) "pgmRCBthNestedReal" #name
2301#define PGM_BTH_NAME_RC_NESTED_PROT_STR(name) "pgmRCBthNestedProt" #name
2302#define PGM_BTH_NAME_RC_NESTED_32BIT_STR(name) "pgmRCBthNested32Bit" #name
2303#define PGM_BTH_NAME_RC_NESTED_PAE_STR(name) "pgmRCBthNestedPAE" #name
2304#define PGM_BTH_NAME_RC_NESTED_AMD64_STR(name) "pgmRCBthNestedAMD64" #name
2305#define PGM_BTH_NAME_RC_EPT_REAL_STR(name) "pgmRCBthEPTReal" #name
2306#define PGM_BTH_NAME_RC_EPT_PROT_STR(name) "pgmRCBthEPTProt" #name
2307#define PGM_BTH_NAME_RC_EPT_32BIT_STR(name) "pgmRCBthEPT32Bit" #name
2308#define PGM_BTH_NAME_RC_EPT_PAE_STR(name) "pgmRCBthEPTPAE" #name
2309#define PGM_BTH_NAME_RC_EPT_AMD64_STR(name) "pgmRCBthEPTAMD64" #name
2310#define PGM_BTH_NAME_R0_32BIT_REAL_STR(name) "pgmR0Bth32BitReal" #name
2311#define PGM_BTH_NAME_R0_32BIT_PROT_STR(name) "pgmR0Bth32BitProt" #name
2312#define PGM_BTH_NAME_R0_32BIT_32BIT_STR(name) "pgmR0Bth32Bit32Bit" #name
2313#define PGM_BTH_NAME_R0_PAE_REAL_STR(name) "pgmR0BthPAEReal" #name
2314#define PGM_BTH_NAME_R0_PAE_PROT_STR(name) "pgmR0BthPAEProt" #name
2315#define PGM_BTH_NAME_R0_PAE_32BIT_STR(name) "pgmR0BthPAE32Bit" #name
2316#define PGM_BTH_NAME_R0_PAE_PAE_STR(name) "pgmR0BthPAEPAE" #name
2317#define PGM_BTH_NAME_R0_AMD64_PROT_STR(name) "pgmR0BthAMD64Prot" #name
2318#define PGM_BTH_NAME_R0_AMD64_AMD64_STR(name) "pgmR0BthAMD64AMD64" #name
2319#define PGM_BTH_NAME_R0_NESTED_REAL_STR(name) "pgmR0BthNestedReal" #name
2320#define PGM_BTH_NAME_R0_NESTED_PROT_STR(name) "pgmR0BthNestedProt" #name
2321#define PGM_BTH_NAME_R0_NESTED_32BIT_STR(name) "pgmR0BthNested32Bit" #name
2322#define PGM_BTH_NAME_R0_NESTED_PAE_STR(name) "pgmR0BthNestedPAE" #name
2323#define PGM_BTH_NAME_R0_NESTED_AMD64_STR(name) "pgmR0BthNestedAMD64" #name
2324#define PGM_BTH_NAME_R0_EPT_REAL_STR(name) "pgmR0BthEPTReal" #name
2325#define PGM_BTH_NAME_R0_EPT_PROT_STR(name) "pgmR0BthEPTProt" #name
2326#define PGM_BTH_NAME_R0_EPT_32BIT_STR(name) "pgmR0BthEPT32Bit" #name
2327#define PGM_BTH_NAME_R0_EPT_PAE_STR(name) "pgmR0BthEPTPAE" #name
2328#define PGM_BTH_NAME_R0_EPT_AMD64_STR(name) "pgmR0BthEPTAMD64" #name
2329
2330#define PGM_BTH_DECL(type, name) PGM_CTX_DECL(type) PGM_BTH_NAME(name)
2331#define PGM_BTH_PFN(name, pVCpu) ((pVCpu)->pgm.s.PGM_CTX(pfn,Bth##name))
2332/** @} */
2333
2334/**
2335 * Data for each paging mode.
2336 */
2337typedef struct PGMMODEDATA
2338{
2339 /** The guest mode type. */
2340 uint32_t uGstType;
2341 /** The shadow mode type. */
2342 uint32_t uShwType;
2343
2344 /** @name Function pointers for Shadow paging.
2345 * @{
2346 */
2347 DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2348 DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVMCPU pVCpu));
2349 DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2350 DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2351
2352 DECLRCCALLBACKMEMBER(int, pfnRCShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2353 DECLRCCALLBACKMEMBER(int, pfnRCShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2354
2355 DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2356 DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2357 /** @} */
2358
2359 /** @name Function pointers for Guest paging.
2360 * @{
2361 */
2362 DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2363 DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVMCPU pVCpu));
2364 DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2365 DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2366 DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2367 DECLRCCALLBACKMEMBER(int, pfnRCGstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2368 DECLRCCALLBACKMEMBER(int, pfnRCGstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2369 DECLRCCALLBACKMEMBER(int, pfnRCGstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2370 DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2371 DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2372 DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2373 /** @} */
2374
2375 /** @name Function pointers for Both Shadow and Guest paging.
2376 * @{
2377 */
2378 DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2379 /* no pfnR3BthTrap0eHandler */
2380 DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2381 DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2382 DECLR3CALLBACKMEMBER(int, pfnR3BthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
2383 DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2384 DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
2385#ifdef VBOX_STRICT
2386 DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
2387#endif
2388 DECLR3CALLBACKMEMBER(int, pfnR3BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
2389 DECLR3CALLBACKMEMBER(int, pfnR3BthUnmapCR3,(PVMCPU pVCpu));
2390
2391 DECLRCCALLBACKMEMBER(int, pfnRCBthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
2392 DECLRCCALLBACKMEMBER(int, pfnRCBthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2393 DECLRCCALLBACKMEMBER(int, pfnRCBthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2394 DECLRCCALLBACKMEMBER(int, pfnRCBthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
2395 DECLRCCALLBACKMEMBER(int, pfnRCBthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2396 DECLRCCALLBACKMEMBER(int, pfnRCBthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
2397#ifdef VBOX_STRICT
2398 DECLRCCALLBACKMEMBER(unsigned, pfnRCBthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
2399#endif
2400 DECLRCCALLBACKMEMBER(int, pfnRCBthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
2401 DECLRCCALLBACKMEMBER(int, pfnRCBthUnmapCR3,(PVMCPU pVCpu));
2402
2403 DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
2404 DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2405 DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2406 DECLR0CALLBACKMEMBER(int, pfnR0BthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
2407 DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2408 DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
2409#ifdef VBOX_STRICT
2410 DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
2411#endif
2412 DECLR0CALLBACKMEMBER(int, pfnR0BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
2413 DECLR0CALLBACKMEMBER(int, pfnR0BthUnmapCR3,(PVMCPU pVCpu));
2414 /** @} */
2415} PGMMODEDATA, *PPGMMODEDATA;
2416
2417
2418
2419/**
2420 * Converts a PGM pointer into a VM pointer.
2421 * @returns Pointer to the VM structure the PGM is part of.
2422 * @param pPGM Pointer to PGM instance data.
2423 */
2424#define PGM2VM(pPGM) ( (PVM)((char*)pPGM - pPGM->offVM) )
2425
2426/**
2427 * PGM Data (part of VM)
2428 */
2429typedef struct PGM
2430{
2431 /** Offset to the VM structure. */
2432 RTINT offVM;
2433 /** Offset of the PGMCPU structure relative to VMCPU. */
2434 RTINT offVCpuPGM;
2435
2436 /** @cfgm{RamPreAlloc, boolean, false}
2437 * Indicates whether the base RAM should all be allocated before starting
2438 * the VM (default), or if it should be allocated when first written to.
2439 */
2440 bool fRamPreAlloc;
2441 /** Indicates whether write monitoring is currently in use.
2442 * This is used to prevent conflicts between live saving and page sharing
2443 * detection. */
2444 bool fPhysWriteMonitoringEngaged;
2445 /** Alignment padding. */
2446 bool afAlignment0[2];
2447
2448 /*
2449 * This will be redefined at least two more times before we're done, I'm sure.
2450 * The current code is only to get on with the coding.
2451 * - 2004-06-10: initial version, bird.
2452 * - 2004-07-02: 1st time, bird.
2453 * - 2004-10-18: 2nd time, bird.
2454 * - 2005-07-xx: 3rd time, bird.
2455 */
2456
2457 /** The host paging mode. (This is what SUPLib reports.) */
2458 SUPPAGINGMODE enmHostMode;
2459
2460 /** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
2461 RCPTRTYPE(PX86PTE) paDynPageMap32BitPTEsGC;
2462 /** Pointer to the page table entries for the dynamic page mapping area - GCPtr. */
2463 RCPTRTYPE(PX86PTEPAE) paDynPageMapPaePTEsGC;
2464
2465 /** 4 MB page mask; 32 or 36 bits depending on PSE-36 (identical for all VCPUs) */
2466 RTGCPHYS GCPhys4MBPSEMask;
2467
2468 /** Pointer to the list of RAM ranges (Phys GC -> Phys HC conversion) - for R3.
2469 * This is sorted by physical address and contains no overlapping ranges. */
2470 R3PTRTYPE(PPGMRAMRANGE) pRamRangesR3;
2471 /** R0 pointer corresponding to PGM::pRamRangesR3. */
2472 R0PTRTYPE(PPGMRAMRANGE) pRamRangesR0;
2473 /** RC pointer corresponding to PGM::pRamRangesR3. */
2474 RCPTRTYPE(PPGMRAMRANGE) pRamRangesRC;
2475 /** Generation ID for the RAM ranges. This member is incremented everytime a RAM
2476 * range is linked or unlinked. */
2477 uint32_t volatile idRamRangesGen;
2478
2479 /** Pointer to the list of ROM ranges - for R3.
2480 * This is sorted by physical address and contains no overlapping ranges. */
2481 R3PTRTYPE(PPGMROMRANGE) pRomRangesR3;
2482 /** R0 pointer corresponding to PGM::pRomRangesR3. */
2483 R0PTRTYPE(PPGMROMRANGE) pRomRangesR0;
2484 /** RC pointer corresponding to PGM::pRomRangesR3. */
2485 RCPTRTYPE(PPGMROMRANGE) pRomRangesRC;
2486#if HC_ARCH_BITS == 64
2487 /** Alignment padding. */
2488 RTRCPTR GCPtrPadding2;
2489#endif
2490
2491 /** Pointer to the list of MMIO2 ranges - for R3.
2492 * Registration order. */
2493 R3PTRTYPE(PPGMMMIO2RANGE) pMmio2RangesR3;
2494
2495 /** PGM offset based trees - R3 Ptr. */
2496 R3PTRTYPE(PPGMTREES) pTreesR3;
2497 /** PGM offset based trees - R0 Ptr. */
2498 R0PTRTYPE(PPGMTREES) pTreesR0;
2499 /** PGM offset based trees - RC Ptr. */
2500 RCPTRTYPE(PPGMTREES) pTreesRC;
2501
2502 /** Linked list of GC mappings - for RC.
2503 * The list is sorted ascending on address.
2504 */
2505 RCPTRTYPE(PPGMMAPPING) pMappingsRC;
2506 /** Linked list of GC mappings - for HC.
2507 * The list is sorted ascending on address.
2508 */
2509 R3PTRTYPE(PPGMMAPPING) pMappingsR3;
2510 /** Linked list of GC mappings - for R0.
2511 * The list is sorted ascending on address.
2512 */
2513 R0PTRTYPE(PPGMMAPPING) pMappingsR0;
2514
2515 /** Pointer to the 5 page CR3 content mapping.
2516 * The first page is always the CR3 (in some form) while the 4 other pages
2517 * are used of the PDs in PAE mode. */
2518 RTGCPTR GCPtrCR3Mapping;
2519#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
2520 uint32_t u32Alignment1;
2521#endif
2522
2523 /** Indicates that PGMR3FinalizeMappings has been called and that further
2524 * PGMR3MapIntermediate calls will be rejected. */
2525 bool fFinalizedMappings;
2526 /** If set no conflict checks are required. */
2527 bool fMappingsFixed;
2528 /** If set if restored as fixed but we were unable to re-fixate at the old
2529 * location because of room or address incompatibilities. */
2530 bool fMappingsFixedRestored;
2531 /** If set, then no mappings are put into the shadow page table.
2532 * Use pgmMapAreMappingsEnabled() instead of direct access. */
2533 bool fMappingsDisabled;
2534 /** Size of fixed mapping.
2535 * This is valid if either fMappingsFixed or fMappingsFixedRestored is set. */
2536 uint32_t cbMappingFixed;
2537 /** Base address (GC) of fixed mapping.
2538 * This is valid if either fMappingsFixed or fMappingsFixedRestored is set. */
2539 RTGCPTR GCPtrMappingFixed;
2540 /** The address of the previous RAM range mapping. */
2541 RTGCPTR GCPtrPrevRamRangeMapping;
2542
2543 /** @name Intermediate Context
2544 * @{ */
2545 /** Pointer to the intermediate page directory - Normal. */
2546 R3PTRTYPE(PX86PD) pInterPD;
2547 /** Pointer to the intermedate page tables - Normal.
2548 * There are two page tables, one for the identity mapping and one for
2549 * the host context mapping (of the core code). */
2550 R3PTRTYPE(PX86PT) apInterPTs[2];
2551 /** Pointer to the intermedate page tables - PAE. */
2552 R3PTRTYPE(PX86PTPAE) apInterPaePTs[2];
2553 /** Pointer to the intermedate page directory - PAE. */
2554 R3PTRTYPE(PX86PDPAE) apInterPaePDs[4];
2555 /** Pointer to the intermedate page directory - PAE. */
2556 R3PTRTYPE(PX86PDPT) pInterPaePDPT;
2557 /** Pointer to the intermedate page-map level 4 - AMD64. */
2558 R3PTRTYPE(PX86PML4) pInterPaePML4;
2559 /** Pointer to the intermedate page directory - AMD64. */
2560 R3PTRTYPE(PX86PDPT) pInterPaePDPT64;
2561 /** The Physical Address (HC) of the intermediate Page Directory - Normal. */
2562 RTHCPHYS HCPhysInterPD;
2563 /** The Physical Address (HC) of the intermediate Page Directory Pointer Table - PAE. */
2564 RTHCPHYS HCPhysInterPaePDPT;
2565 /** The Physical Address (HC) of the intermediate Page Map Level 4 table - AMD64. */
2566 RTHCPHYS HCPhysInterPaePML4;
2567 /** @} */
2568
2569 /** Base address of the dynamic page mapping area.
2570 * The array is MM_HYPER_DYNAMIC_SIZE bytes big.
2571 */
2572 RCPTRTYPE(uint8_t *) pbDynPageMapBaseGC;
2573 /** The index of the last entry used in the dynamic page mapping area. */
2574 RTUINT iDynPageMapLast;
2575 /** Cache containing the last entries in the dynamic page mapping area.
2576 * The cache size is covering half of the mapping area. */
2577 RTHCPHYS aHCPhysDynPageMapCache[MM_HYPER_DYNAMIC_SIZE >> (PAGE_SHIFT + 1)];
2578 /** Keep a lock counter for the full (!) mapping area. */
2579 uint32_t aLockedDynPageMapCache[MM_HYPER_DYNAMIC_SIZE >> (PAGE_SHIFT)];
2580
2581 /** The address of the ring-0 mapping cache if we're making use of it. */
2582 RTR0PTR pvR0DynMapUsed;
2583#if HC_ARCH_BITS == 32
2584 /** Alignment padding that makes the next member start on a 8 byte boundrary. */
2585 uint32_t u32Alignment2;
2586#endif
2587
2588 /** PGM critical section.
2589 * This protects the physical & virtual access handlers, ram ranges,
2590 * and the page flag updating (some of it anyway).
2591 */
2592 PDMCRITSECT CritSect;
2593
2594 /** Pointer to SHW+GST mode data (function pointers).
2595 * The index into this table is made up from */
2596 R3PTRTYPE(PPGMMODEDATA) paModeData;
2597
2598 /** Shadow Page Pool - R3 Ptr. */
2599 R3PTRTYPE(PPGMPOOL) pPoolR3;
2600 /** Shadow Page Pool - R0 Ptr. */
2601 R0PTRTYPE(PPGMPOOL) pPoolR0;
2602 /** Shadow Page Pool - RC Ptr. */
2603 RCPTRTYPE(PPGMPOOL) pPoolRC;
2604
2605 /** We're not in a state which permits writes to guest memory.
2606 * (Only used in strict builds.) */
2607 bool fNoMorePhysWrites;
2608 /** Alignment padding that makes the next member start on a 8 byte boundrary. */
2609 bool afAlignment3[HC_ARCH_BITS == 32 ? 7: 3];
2610
2611 /**
2612 * Data associated with managing the ring-3 mappings of the allocation chunks.
2613 */
2614 struct
2615 {
2616 /** The chunk tree, ordered by chunk id. */
2617#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
2618 R3PTRTYPE(PAVLU32NODECORE) pTree;
2619#else
2620 R3R0PTRTYPE(PAVLU32NODECORE) pTree;
2621#endif
2622 /** The chunk age tree, ordered by ageing sequence number. */
2623 R3PTRTYPE(PAVLLU32NODECORE) pAgeTree;
2624 /** The chunk mapping TLB. */
2625 PGMCHUNKR3MAPTLB Tlb;
2626 /** The number of mapped chunks. */
2627 uint32_t c;
2628 /** The maximum number of mapped chunks.
2629 * @cfgm PGM/MaxRing3Chunks */
2630 uint32_t cMax;
2631 /** The current time. */
2632 uint32_t iNow;
2633 /** Number of pgmR3PhysChunkFindUnmapCandidate calls left to the next ageing. */
2634 uint32_t AgeingCountdown;
2635 } ChunkR3Map;
2636
2637 /**
2638 * The page mapping TLB for ring-3 and (for the time being) ring-0.
2639 */
2640 PGMPAGER3MAPTLB PhysTlbHC;
2641
2642 /** @name The zero page.
2643 * @{ */
2644 /** The host physical address of the zero page. */
2645 RTHCPHYS HCPhysZeroPg;
2646 /** The ring-3 mapping of the zero page. */
2647 RTR3PTR pvZeroPgR3;
2648 /** The ring-0 mapping of the zero page. */
2649 RTR0PTR pvZeroPgR0;
2650 /** The GC mapping of the zero page. */
2651 RTGCPTR pvZeroPgRC;
2652#if GC_ARCH_BITS != 32
2653 uint32_t u32ZeroAlignment; /**< Alignment padding. */
2654#endif
2655 /** @}*/
2656
2657 /** The number of handy pages. */
2658 uint32_t cHandyPages;
2659 /**
2660 * Array of handy pages.
2661 *
2662 * This array is used in a two way communication between pgmPhysAllocPage
2663 * and GMMR0AllocateHandyPages, with PGMR3PhysAllocateHandyPages serving as
2664 * an intermediary.
2665 *
2666 * The size of this array is important, see pgmPhysEnsureHandyPage for details.
2667 * (The current size of 32 pages, means 128 KB of handy memory.)
2668 */
2669 GMMPAGEDESC aHandyPages[PGM_HANDY_PAGES];
2670
2671 /**
2672 * Live save data.
2673 */
2674 struct
2675 {
2676 /** Per type statistics. */
2677 struct
2678 {
2679 /** The number of ready pages. */
2680 uint32_t cReadyPages;
2681 /** The number of dirty pages. */
2682 uint32_t cDirtyPages;
2683 /** The number of ready zero pages. */
2684 uint32_t cZeroPages;
2685 /** The number of write monitored pages. */
2686 uint32_t cMonitoredPages;
2687 } Rom,
2688 Mmio2,
2689 Ram;
2690 /** The number of ignored pages in the RAM ranges (i.e. MMIO, MMIO2 and ROM). */
2691 uint32_t cIgnoredPages;
2692 /** Indicates that a live save operation is active. */
2693 bool fActive;
2694 /** Padding. */
2695 bool afReserved[2];
2696 /** The next history index. */
2697 uint8_t iDirtyPagesHistory;
2698 /** History of the total amount of dirty pages. */
2699 uint32_t acDirtyPagesHistory[64];
2700 /** Short term dirty page average. */
2701 uint32_t cDirtyPagesShort;
2702 /** Long term dirty page average. */
2703 uint32_t cDirtyPagesLong;
2704 /** The number of saved pages. This is used to get some kind of estimate of the
2705 * link speed so we can decide when we're done. It is reset after the first
2706 * 7 passes so the speed estimate doesn't get inflated by the initial set of
2707 * zero pages. */
2708 uint64_t cSavedPages;
2709 /** The nanosecond timestamp when cSavedPages was 0. */
2710 uint64_t uSaveStartNS;
2711 /** Pages per second (for statistics). */
2712 uint32_t cPagesPerSecond;
2713 uint32_t cAlignment;
2714 } LiveSave;
2715
2716 /** @name Error injection.
2717 * @{ */
2718 /** Inject handy page allocation errors pretending we're completely out of
2719 * memory. */
2720 bool volatile fErrInjHandyPages;
2721 /** Padding. */
2722 bool afReserved[3];
2723 /** @} */
2724
2725 /** @name Release Statistics
2726 * @{ */
2727 uint32_t cAllPages; /**< The total number of pages. (Should be Private + Shared + Zero + Pure MMIO.) */
2728 uint32_t cPrivatePages; /**< The number of private pages. */
2729 uint32_t cSharedPages; /**< The number of shared pages. */
2730 uint32_t cZeroPages; /**< The number of zero backed pages. */
2731 uint32_t cPureMmioPages; /**< The number of pure MMIO pages. */
2732 uint32_t cMonitoredPages; /**< The number of write monitored pages. */
2733 uint32_t cWrittenToPages; /**< The number of previously write monitored pages. */
2734 uint32_t cWriteLockedPages; /**< The number of write locked pages. */
2735 uint32_t cReadLockedPages; /**< The number of read locked pages. */
2736
2737 /** The number of times we were forced to change the hypervisor region location. */
2738 STAMCOUNTER cRelocations;
2739 /** @} */
2740
2741#ifdef VBOX_WITH_STATISTICS /** @todo move this chunk to the heap. */
2742 /* R3 only: */
2743 STAMCOUNTER StatR3DetectedConflicts; /**< R3: Number of times PGMR3MapHasConflicts() detected a conflict. */
2744 STAMPROFILE StatR3ResolveConflict; /**< R3: pgmR3SyncPTResolveConflict() profiling (includes the entire relocation). */
2745
2746 STAMCOUNTER StatRZChunkR3MapTlbHits; /**< RC/R0: Ring-3/0 chunk mapper TLB hits. */
2747 STAMCOUNTER StatRZChunkR3MapTlbMisses; /**< RC/R0: Ring-3/0 chunk mapper TLB misses. */
2748 STAMCOUNTER StatRZPageMapTlbHits; /**< RC/R0: Ring-3/0 page mapper TLB hits. */
2749 STAMCOUNTER StatRZPageMapTlbMisses; /**< RC/R0: Ring-3/0 page mapper TLB misses. */
2750 STAMCOUNTER StatPageMapTlbFlushes; /**< ALL: Ring-3/0 page mapper TLB flushes. */
2751 STAMCOUNTER StatPageMapTlbFlushEntry; /**< ALL: Ring-3/0 page mapper TLB flushes. */
2752 STAMCOUNTER StatR3ChunkR3MapTlbHits; /**< R3: Ring-3/0 chunk mapper TLB hits. */
2753 STAMCOUNTER StatR3ChunkR3MapTlbMisses; /**< R3: Ring-3/0 chunk mapper TLB misses. */
2754 STAMCOUNTER StatR3PageMapTlbHits; /**< R3: Ring-3/0 page mapper TLB hits. */
2755 STAMCOUNTER StatR3PageMapTlbMisses; /**< R3: Ring-3/0 page mapper TLB misses. */
2756 STAMPROFILE StatRZSyncCR3HandlerVirtualReset; /**< RC/R0: Profiling of the virtual handler resets. */
2757 STAMPROFILE StatRZSyncCR3HandlerVirtualUpdate; /**< RC/R0: Profiling of the virtual handler updates. */
2758 STAMPROFILE StatR3SyncCR3HandlerVirtualReset; /**< R3: Profiling of the virtual handler resets. */
2759 STAMPROFILE StatR3SyncCR3HandlerVirtualUpdate; /**< R3: Profiling of the virtual handler updates. */
2760 STAMCOUNTER StatR3PhysHandlerReset; /**< R3: The number of times PGMHandlerPhysicalReset is called. */
2761 STAMCOUNTER StatRZPhysHandlerReset; /**< RC/R0: The number of times PGMHandlerPhysicalReset is called. */
2762 STAMPROFILE StatRZVirtHandlerSearchByPhys; /**< RC/R0: Profiling of pgmHandlerVirtualFindByPhysAddr. */
2763 STAMPROFILE StatR3VirtHandlerSearchByPhys; /**< R3: Profiling of pgmHandlerVirtualFindByPhysAddr. */
2764 STAMCOUNTER StatRZPageReplaceShared; /**< RC/R0: Times a shared page has been replaced by a private one. */
2765 STAMCOUNTER StatRZPageReplaceZero; /**< RC/R0: Times the zero page has been replaced by a private one. */
2766/// @todo STAMCOUNTER StatRZPageHandyAllocs; /**< RC/R0: The number of times we've executed GMMR3AllocateHandyPages. */
2767 STAMCOUNTER StatR3PageReplaceShared; /**< R3: Times a shared page has been replaced by a private one. */
2768 STAMCOUNTER StatR3PageReplaceZero; /**< R3: Times the zero page has been replaced by a private one. */
2769/// @todo STAMCOUNTER StatR3PageHandyAllocs; /**< R3: The number of times we've executed GMMR3AllocateHandyPages. */
2770
2771 /* RC only: */
2772 STAMCOUNTER StatRCDynMapCacheMisses; /**< RC: The number of dynamic page mapping cache misses */
2773 STAMCOUNTER StatRCDynMapCacheHits; /**< RC: The number of dynamic page mapping cache hits */
2774 STAMCOUNTER StatRCInvlPgConflict; /**< RC: Number of times PGMInvalidatePage() detected a mapping conflict. */
2775 STAMCOUNTER StatRCInvlPgSyncMonCR3; /**< RC: Number of times PGMInvalidatePage() ran into PGM_SYNC_MONITOR_CR3. */
2776
2777 STAMCOUNTER StatRZPhysRead;
2778 STAMCOUNTER StatRZPhysReadBytes;
2779 STAMCOUNTER StatRZPhysWrite;
2780 STAMCOUNTER StatRZPhysWriteBytes;
2781 STAMCOUNTER StatR3PhysRead;
2782 STAMCOUNTER StatR3PhysReadBytes;
2783 STAMCOUNTER StatR3PhysWrite;
2784 STAMCOUNTER StatR3PhysWriteBytes;
2785 STAMCOUNTER StatRCPhysRead;
2786 STAMCOUNTER StatRCPhysReadBytes;
2787 STAMCOUNTER StatRCPhysWrite;
2788 STAMCOUNTER StatRCPhysWriteBytes;
2789
2790 STAMCOUNTER StatRZPhysSimpleRead;
2791 STAMCOUNTER StatRZPhysSimpleReadBytes;
2792 STAMCOUNTER StatRZPhysSimpleWrite;
2793 STAMCOUNTER StatRZPhysSimpleWriteBytes;
2794 STAMCOUNTER StatR3PhysSimpleRead;
2795 STAMCOUNTER StatR3PhysSimpleReadBytes;
2796 STAMCOUNTER StatR3PhysSimpleWrite;
2797 STAMCOUNTER StatR3PhysSimpleWriteBytes;
2798 STAMCOUNTER StatRCPhysSimpleRead;
2799 STAMCOUNTER StatRCPhysSimpleReadBytes;
2800 STAMCOUNTER StatRCPhysSimpleWrite;
2801 STAMCOUNTER StatRCPhysSimpleWriteBytes;
2802
2803 STAMCOUNTER StatTrackVirgin; /**< The number of first time shadowings. */
2804 STAMCOUNTER StatTrackAliased; /**< The number of times switching to cRef2, i.e. the page is being shadowed by two PTs. */
2805 STAMCOUNTER StatTrackAliasedMany; /**< The number of times we're tracking using cRef2. */
2806 STAMCOUNTER StatTrackAliasedLots; /**< The number of times we're hitting pages which has overflowed cRef2. */
2807 STAMCOUNTER StatTrackOverflows; /**< The number of times the extent list grows to long. */
2808 STAMPROFILE StatTrackDeref; /**< Profiling of SyncPageWorkerTrackDeref (expensive). */
2809#endif
2810} PGM;
2811#ifndef IN_TSTVMSTRUCTGC /* HACK */
2812AssertCompileMemberAlignment(PGM, paDynPageMap32BitPTEsGC, 8);
2813AssertCompileMemberAlignment(PGM, GCPtrMappingFixed, sizeof(RTGCPTR));
2814AssertCompileMemberAlignment(PGM, HCPhysInterPD, 8);
2815AssertCompileMemberAlignment(PGM, aHCPhysDynPageMapCache, 8);
2816AssertCompileMemberAlignment(PGM, CritSect, 8);
2817AssertCompileMemberAlignment(PGM, ChunkR3Map, 8);
2818AssertCompileMemberAlignment(PGM, PhysTlbHC, 8);
2819AssertCompileMemberAlignment(PGM, HCPhysZeroPg, 8);
2820AssertCompileMemberAlignment(PGM, aHandyPages, 8);
2821AssertCompileMemberAlignment(PGM, cRelocations, 8);
2822#endif /* !IN_TSTVMSTRUCTGC */
2823/** Pointer to the PGM instance data. */
2824typedef PGM *PPGM;
2825
2826
2827/**
2828 * Converts a PGMCPU pointer into a VM pointer.
2829 * @returns Pointer to the VM structure the PGM is part of.
2830 * @param pPGM Pointer to PGMCPU instance data.
2831 */
2832#define PGMCPU2VM(pPGM) ( (PVM)((char*)pPGM - pPGM->offVM) )
2833
2834/**
2835 * Converts a PGMCPU pointer into a PGM pointer.
2836 * @returns Pointer to the VM structure the PGM is part of.
2837 * @param pPGM Pointer to PGMCPU instance data.
2838 */
2839#define PGMCPU2PGM(pPGMCpu) ( (PPGM)((char*)pPGMCpu - pPGMCpu->offPGM) )
2840
2841/**
2842 * PGMCPU Data (part of VMCPU).
2843 */
2844typedef struct PGMCPU
2845{
2846 /** Offset to the VM structure. */
2847 RTINT offVM;
2848 /** Offset to the VMCPU structure. */
2849 RTINT offVCpu;
2850 /** Offset of the PGM structure relative to VMCPU. */
2851 RTINT offPGM;
2852 RTINT uPadding0; /**< structure size alignment. */
2853
2854#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
2855 /** Automatically tracked physical memory mapping set.
2856 * Ring-0 and strict raw-mode builds. */
2857 PGMMAPSET AutoSet;
2858#endif
2859
2860 /** A20 gate mask.
2861 * Our current approach to A20 emulation is to let REM do it and don't bother
2862 * anywhere else. The interesting Guests will be operating with it enabled anyway.
2863 * But whould need arrise, we'll subject physical addresses to this mask. */
2864 RTGCPHYS GCPhysA20Mask;
2865 /** A20 gate state - boolean! */
2866 bool fA20Enabled;
2867
2868 /** What needs syncing (PGM_SYNC_*).
2869 * This is used to queue operations for PGMSyncCR3, PGMInvalidatePage,
2870 * PGMFlushTLB, and PGMR3Load. */
2871 RTUINT fSyncFlags;
2872
2873 /** The shadow paging mode. */
2874 PGMMODE enmShadowMode;
2875 /** The guest paging mode. */
2876 PGMMODE enmGuestMode;
2877
2878 /** The current physical address representing in the guest CR3 register. */
2879 RTGCPHYS GCPhysCR3;
2880
2881 /** @name 32-bit Guest Paging.
2882 * @{ */
2883 /** The guest's page directory, R3 pointer. */
2884 R3PTRTYPE(PX86PD) pGst32BitPdR3;
2885#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
2886 /** The guest's page directory, R0 pointer. */
2887 R0PTRTYPE(PX86PD) pGst32BitPdR0;
2888#endif
2889 /** The guest's page directory, static RC mapping. */
2890 RCPTRTYPE(PX86PD) pGst32BitPdRC;
2891 /** @} */
2892
2893 /** @name PAE Guest Paging.
2894 * @{ */
2895 /** The guest's page directory pointer table, static RC mapping. */
2896 RCPTRTYPE(PX86PDPT) pGstPaePdptRC;
2897 /** The guest's page directory pointer table, R3 pointer. */
2898 R3PTRTYPE(PX86PDPT) pGstPaePdptR3;
2899#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
2900 /** The guest's page directory pointer table, R0 pointer. */
2901 R0PTRTYPE(PX86PDPT) pGstPaePdptR0;
2902#endif
2903
2904 /** The guest's page directories, R3 pointers.
2905 * These are individual pointers and don't have to be adjecent.
2906 * These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
2907 R3PTRTYPE(PX86PDPAE) apGstPaePDsR3[4];
2908 /** The guest's page directories, R0 pointers.
2909 * Same restrictions as apGstPaePDsR3. */
2910#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
2911 R0PTRTYPE(PX86PDPAE) apGstPaePDsR0[4];
2912#endif
2913 /** The guest's page directories, static GC mapping.
2914 * Unlike the R3/R0 array the first entry can be accessed as a 2048 entry PD.
2915 * These don't have to be up-to-date - use pgmGstGetPaePD() to access them. */
2916 RCPTRTYPE(PX86PDPAE) apGstPaePDsRC[4];
2917 /** The physical addresses of the guest page directories (PAE) pointed to by apGstPagePDsHC/GC. */
2918 RTGCPHYS aGCPhysGstPaePDs[4];
2919 /** The physical addresses of the monitored guest page directories (PAE). */
2920 RTGCPHYS aGCPhysGstPaePDsMonitored[4];
2921 /** @} */
2922
2923 /** @name AMD64 Guest Paging.
2924 * @{ */
2925 /** The guest's page directory pointer table, R3 pointer. */
2926 R3PTRTYPE(PX86PML4) pGstAmd64Pml4R3;
2927#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
2928 /** The guest's page directory pointer table, R0 pointer. */
2929 R0PTRTYPE(PX86PML4) pGstAmd64Pml4R0;
2930#else
2931 RTR0PTR alignment6b; /**< alignment equalizer. */
2932#endif
2933 /** @} */
2934
2935 /** Pointer to the page of the current active CR3 - R3 Ptr. */
2936 R3PTRTYPE(PPGMPOOLPAGE) pShwPageCR3R3;
2937 /** Pointer to the page of the current active CR3 - R0 Ptr. */
2938 R0PTRTYPE(PPGMPOOLPAGE) pShwPageCR3R0;
2939 /** Pointer to the page of the current active CR3 - RC Ptr. */
2940 RCPTRTYPE(PPGMPOOLPAGE) pShwPageCR3RC;
2941 /* The shadow page pool index of the user table as specified during allocation; useful for freeing root pages */
2942 uint32_t iShwUser;
2943 /* The index into the user table (shadowed) as specified during allocation; useful for freeing root pages. */
2944 uint32_t iShwUserTable;
2945# if HC_ARCH_BITS == 64
2946 RTRCPTR alignment6; /**< structure size alignment. */
2947# endif
2948 /** @} */
2949
2950 /** @name Function pointers for Shadow paging.
2951 * @{
2952 */
2953 DECLR3CALLBACKMEMBER(int, pfnR3ShwRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2954 DECLR3CALLBACKMEMBER(int, pfnR3ShwExit,(PVMCPU pVCpu));
2955 DECLR3CALLBACKMEMBER(int, pfnR3ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2956 DECLR3CALLBACKMEMBER(int, pfnR3ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2957
2958 DECLRCCALLBACKMEMBER(int, pfnRCShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2959 DECLRCCALLBACKMEMBER(int, pfnRCShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2960
2961 DECLR0CALLBACKMEMBER(int, pfnR0ShwGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTHCPHYS pHCPhys));
2962 DECLR0CALLBACKMEMBER(int, pfnR0ShwModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2963
2964 /** @} */
2965
2966 /** @name Function pointers for Guest paging.
2967 * @{
2968 */
2969 DECLR3CALLBACKMEMBER(int, pfnR3GstRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2970 DECLR3CALLBACKMEMBER(int, pfnR3GstExit,(PVMCPU pVCpu));
2971 DECLR3CALLBACKMEMBER(int, pfnR3GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2972 DECLR3CALLBACKMEMBER(int, pfnR3GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2973 DECLR3CALLBACKMEMBER(int, pfnR3GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2974 DECLRCCALLBACKMEMBER(int, pfnRCGstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2975 DECLRCCALLBACKMEMBER(int, pfnRCGstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2976 DECLRCCALLBACKMEMBER(int, pfnRCGstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2977#if HC_ARCH_BITS == 64
2978 RTRCPTR alignment3; /**< structure size alignment. */
2979#endif
2980
2981 DECLR0CALLBACKMEMBER(int, pfnR0GstGetPage,(PVMCPU pVCpu, RTGCPTR GCPtr, uint64_t *pfFlags, PRTGCPHYS pGCPhys));
2982 DECLR0CALLBACKMEMBER(int, pfnR0GstModifyPage,(PVMCPU pVCpu, RTGCPTR GCPtr, size_t cbPages, uint64_t fFlags, uint64_t fMask));
2983 DECLR0CALLBACKMEMBER(int, pfnR0GstGetPDE,(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDEPAE pPde));
2984 /** @} */
2985
2986 /** @name Function pointers for Both Shadow and Guest paging.
2987 * @{
2988 */
2989 DECLR3CALLBACKMEMBER(int, pfnR3BthRelocate,(PVMCPU pVCpu, RTGCPTR offDelta));
2990 /* no pfnR3BthTrap0eHandler */
2991 DECLR3CALLBACKMEMBER(int, pfnR3BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2992 DECLR3CALLBACKMEMBER(int, pfnR3BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
2993 DECLR3CALLBACKMEMBER(int, pfnR3BthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
2994 DECLR3CALLBACKMEMBER(int, pfnR3BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
2995 DECLR3CALLBACKMEMBER(int, pfnR3BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
2996 DECLR3CALLBACKMEMBER(unsigned, pfnR3BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
2997 DECLR3CALLBACKMEMBER(int, pfnR3BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
2998 DECLR3CALLBACKMEMBER(int, pfnR3BthUnmapCR3,(PVMCPU pVCpu));
2999
3000 DECLR0CALLBACKMEMBER(int, pfnR0BthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
3001 DECLR0CALLBACKMEMBER(int, pfnR0BthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3002 DECLR0CALLBACKMEMBER(int, pfnR0BthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
3003 DECLR0CALLBACKMEMBER(int, pfnR0BthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
3004 DECLR0CALLBACKMEMBER(int, pfnR0BthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3005 DECLR0CALLBACKMEMBER(int, pfnR0BthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
3006 DECLR0CALLBACKMEMBER(unsigned, pfnR0BthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
3007 DECLR0CALLBACKMEMBER(int, pfnR0BthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
3008 DECLR0CALLBACKMEMBER(int, pfnR0BthUnmapCR3,(PVMCPU pVCpu));
3009
3010 DECLRCCALLBACKMEMBER(int, pfnRCBthTrap0eHandler,(PVMCPU pVCpu, RTGCUINT uErr, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, bool *pfLockTaken));
3011 DECLRCCALLBACKMEMBER(int, pfnRCBthInvalidatePage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3012 DECLRCCALLBACKMEMBER(int, pfnRCBthSyncCR3,(PVMCPU pVCpu, uint64_t cr0, uint64_t cr3, uint64_t cr4, bool fGlobal));
3013 DECLRCCALLBACKMEMBER(int, pfnRCBthSyncPage,(PVMCPU pVCpu, X86PDE PdeSrc, RTGCPTR GCPtrPage, unsigned cPages, unsigned uError));
3014 DECLRCCALLBACKMEMBER(int, pfnRCBthPrefetchPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage));
3015 DECLRCCALLBACKMEMBER(int, pfnRCBthVerifyAccessSyncPage,(PVMCPU pVCpu, RTGCPTR GCPtrPage, unsigned fFlags, unsigned uError));
3016 DECLRCCALLBACKMEMBER(unsigned, pfnRCBthAssertCR3,(PVMCPU pVCpu, uint64_t cr3, uint64_t cr4, RTGCPTR GCPtr, RTGCPTR cb));
3017 DECLRCCALLBACKMEMBER(int, pfnRCBthMapCR3,(PVMCPU pVCpu, RTGCPHYS GCPhysCR3));
3018 DECLRCCALLBACKMEMBER(int, pfnRCBthUnmapCR3,(PVMCPU pVCpu));
3019 RTRCPTR alignment2; /**< structure size alignment. */
3020 /** @} */
3021
3022 /** For saving stack space, the disassembler state is allocated here instead of
3023 * on the stack.
3024 * @note The DISCPUSTATE structure is not R3/R0/RZ clean! */
3025 union
3026 {
3027 /** The disassembler scratch space. */
3028 DISCPUSTATE DisState;
3029 /** Padding. */
3030 uint8_t abDisStatePadding[DISCPUSTATE_PADDING_SIZE];
3031 };
3032
3033 /* Count the number of pgm pool access handler calls. */
3034 uint64_t cPoolAccessHandler;
3035
3036 /** @name Release Statistics
3037 * @{ */
3038 /** The number of times the guest has switched mode since last reset or statistics reset. */
3039 STAMCOUNTER cGuestModeChanges;
3040 /** @} */
3041
3042#ifdef VBOX_WITH_STATISTICS /** @todo move this chunk to the heap. */
3043 /** @name Statistics
3044 * @{ */
3045 /** RC: Which statistic this \#PF should be attributed to. */
3046 RCPTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionRC;
3047 RTRCPTR padding0;
3048 /** R0: Which statistic this \#PF should be attributed to. */
3049 R0PTRTYPE(PSTAMPROFILE) pStatTrap0eAttributionR0;
3050 RTR0PTR padding1;
3051
3052 /* Common */
3053 STAMCOUNTER StatSyncPtPD[X86_PG_ENTRIES]; /**< SyncPT - PD distribution. */
3054 STAMCOUNTER StatSyncPagePD[X86_PG_ENTRIES]; /**< SyncPage - PD distribution. */
3055
3056 /* R0 only: */
3057 STAMCOUNTER StatR0DynMapMigrateInvlPg; /**< R0: invlpg in PGMDynMapMigrateAutoSet. */
3058 STAMPROFILE StatR0DynMapGCPageInl; /**< R0: Calls to pgmR0DynMapGCPageInlined. */
3059 STAMCOUNTER StatR0DynMapGCPageInlHits; /**< R0: Hash table lookup hits. */
3060 STAMCOUNTER StatR0DynMapGCPageInlMisses; /**< R0: Misses that falls back to code common with PGMDynMapHCPage. */
3061 STAMCOUNTER StatR0DynMapGCPageInlRamHits; /**< R0: 1st ram range hits. */
3062 STAMCOUNTER StatR0DynMapGCPageInlRamMisses; /**< R0: 1st ram range misses, takes slow path. */
3063 STAMPROFILE StatR0DynMapHCPageInl; /**< R0: Calls to pgmR0DynMapHCPageInlined. */
3064 STAMCOUNTER StatR0DynMapHCPageInlHits; /**< R0: Hash table lookup hits. */
3065 STAMCOUNTER StatR0DynMapHCPageInlMisses; /**< R0: Misses that falls back to code common with PGMDynMapHCPage. */
3066 STAMPROFILE StatR0DynMapHCPage; /**< R0: Calls to PGMDynMapHCPage. */
3067 STAMCOUNTER StatR0DynMapSetOptimize; /**< R0: Calls to pgmDynMapOptimizeAutoSet. */
3068 STAMCOUNTER StatR0DynMapSetSearchFlushes; /**< R0: Set search restorting to subset flushes. */
3069 STAMCOUNTER StatR0DynMapSetSearchHits; /**< R0: Set search hits. */
3070 STAMCOUNTER StatR0DynMapSetSearchMisses; /**< R0: Set search misses. */
3071 STAMCOUNTER StatR0DynMapPage; /**< R0: Calls to pgmR0DynMapPage. */
3072 STAMCOUNTER StatR0DynMapPageHits0; /**< R0: Hits at iPage+0. */
3073 STAMCOUNTER StatR0DynMapPageHits1; /**< R0: Hits at iPage+1. */
3074 STAMCOUNTER StatR0DynMapPageHits2; /**< R0: Hits at iPage+2. */
3075 STAMCOUNTER StatR0DynMapPageInvlPg; /**< R0: invlpg. */
3076 STAMCOUNTER StatR0DynMapPageSlow; /**< R0: Calls to pgmR0DynMapPageSlow. */
3077 STAMCOUNTER StatR0DynMapPageSlowLoopHits; /**< R0: Hits in the pgmR0DynMapPageSlow search loop. */
3078 STAMCOUNTER StatR0DynMapPageSlowLoopMisses; /**< R0: Misses in the pgmR0DynMapPageSlow search loop. */
3079 //STAMCOUNTER StatR0DynMapPageSlowLostHits; /**< R0: Lost hits. */
3080 STAMCOUNTER StatR0DynMapSubsets; /**< R0: Times PGMDynMapPushAutoSubset was called. */
3081 STAMCOUNTER StatR0DynMapPopFlushes; /**< R0: Times PGMDynMapPopAutoSubset flushes the subset. */
3082 STAMCOUNTER aStatR0DynMapSetSize[11]; /**< R0: Set size distribution. */
3083
3084 /* RZ only: */
3085 STAMPROFILE StatRZTrap0e; /**< RC/R0: PGMTrap0eHandler() profiling. */
3086 STAMPROFILE StatRZTrap0eTimeCheckPageFault;
3087 STAMPROFILE StatRZTrap0eTimeSyncPT;
3088 STAMPROFILE StatRZTrap0eTimeMapping;
3089 STAMPROFILE StatRZTrap0eTimeOutOfSync;
3090 STAMPROFILE StatRZTrap0eTimeHandlers;
3091 STAMPROFILE StatRZTrap0eTime2CSAM; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is CSAM. */
3092 STAMPROFILE StatRZTrap0eTime2DirtyAndAccessed; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation. */
3093 STAMPROFILE StatRZTrap0eTime2GuestTrap; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a guest trap. */
3094 STAMPROFILE StatRZTrap0eTime2HndPhys; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a physical handler. */
3095 STAMPROFILE StatRZTrap0eTime2HndVirt; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is a virtual handler. */
3096 STAMPROFILE StatRZTrap0eTime2HndUnhandled; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page. */
3097 STAMPROFILE StatRZTrap0eTime2Misc; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is not known. */
3098 STAMPROFILE StatRZTrap0eTime2OutOfSync; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync page. */
3099 STAMPROFILE StatRZTrap0eTime2OutOfSyncHndPhys; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page. */
3100 STAMPROFILE StatRZTrap0eTime2OutOfSyncHndVirt; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page. */
3101 STAMPROFILE StatRZTrap0eTime2OutOfSyncHndObs; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is an obsolete handler page. */
3102 STAMPROFILE StatRZTrap0eTime2SyncPT; /**< RC/R0: Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT. */
3103 STAMCOUNTER StatRZTrap0eConflicts; /**< RC/R0: The number of times \#PF was caused by an undetected conflict. */
3104 STAMCOUNTER StatRZTrap0eHandlersMapping; /**< RC/R0: Number of traps due to access handlers in mappings. */
3105 STAMCOUNTER StatRZTrap0eHandlersOutOfSync; /**< RC/R0: Number of out-of-sync handled pages. */
3106 STAMCOUNTER StatRZTrap0eHandlersPhysical; /**< RC/R0: Number of traps due to physical access handlers. */
3107 STAMCOUNTER StatRZTrap0eHandlersVirtual; /**< RC/R0: Number of traps due to virtual access handlers. */
3108 STAMCOUNTER StatRZTrap0eHandlersVirtualByPhys; /**< RC/R0: Number of traps due to virtual access handlers found by physical address. */
3109 STAMCOUNTER StatRZTrap0eHandlersVirtualUnmarked;/**< RC/R0: Number of traps due to virtual access handlers found by virtual address (without proper physical flags). */
3110 STAMCOUNTER StatRZTrap0eHandlersUnhandled; /**< RC/R0: Number of traps due to access outside range of monitored page(s). */
3111 STAMCOUNTER StatRZTrap0eHandlersInvalid; /**< RC/R0: Number of traps due to access to invalid physical memory. */
3112 STAMCOUNTER StatRZTrap0eUSNotPresentRead; /**< RC/R0: \#PF err kind */
3113 STAMCOUNTER StatRZTrap0eUSNotPresentWrite; /**< RC/R0: \#PF err kind */
3114 STAMCOUNTER StatRZTrap0eUSWrite; /**< RC/R0: \#PF err kind */
3115 STAMCOUNTER StatRZTrap0eUSReserved; /**< RC/R0: \#PF err kind */
3116 STAMCOUNTER StatRZTrap0eUSNXE; /**< RC/R0: \#PF err kind */
3117 STAMCOUNTER StatRZTrap0eUSRead; /**< RC/R0: \#PF err kind */
3118 STAMCOUNTER StatRZTrap0eSVNotPresentRead; /**< RC/R0: \#PF err kind */
3119 STAMCOUNTER StatRZTrap0eSVNotPresentWrite; /**< RC/R0: \#PF err kind */
3120 STAMCOUNTER StatRZTrap0eSVWrite; /**< RC/R0: \#PF err kind */
3121 STAMCOUNTER StatRZTrap0eSVReserved; /**< RC/R0: \#PF err kind */
3122 STAMCOUNTER StatRZTrap0eSNXE; /**< RC/R0: \#PF err kind */
3123 STAMCOUNTER StatRZTrap0eGuestPF; /**< RC/R0: Real guest \#PFs. */
3124 STAMCOUNTER StatRZTrap0eGuestPFUnh; /**< RC/R0: Real guest \#PF ending up at the end of the \#PF code. */
3125 STAMCOUNTER StatRZTrap0eGuestPFMapping; /**< RC/R0: Real guest \#PF to HMA or other mapping. */
3126 STAMCOUNTER StatRZTrap0eWPEmulInRZ; /**< RC/R0: WP=0 virtualization trap, handled. */
3127 STAMCOUNTER StatRZTrap0eWPEmulToR3; /**< RC/R0: WP=0 virtualization trap, chickened out. */
3128 STAMCOUNTER StatRZTrap0ePD[X86_PG_ENTRIES]; /**< RC/R0: PD distribution of the \#PFs. */
3129 STAMCOUNTER StatRZGuestCR3WriteHandled; /**< RC/R0: The number of times WriteHandlerCR3() was successfully called. */
3130 STAMCOUNTER StatRZGuestCR3WriteUnhandled; /**< RC/R0: The number of times WriteHandlerCR3() was called and we had to fall back to the recompiler. */
3131 STAMCOUNTER StatRZGuestCR3WriteConflict; /**< RC/R0: The number of times WriteHandlerCR3() was called and a conflict was detected. */
3132 STAMCOUNTER StatRZGuestROMWriteHandled; /**< RC/R0: The number of times pgmPhysRomWriteHandler() was successfully called. */
3133 STAMCOUNTER StatRZGuestROMWriteUnhandled; /**< RC/R0: The number of times pgmPhysRomWriteHandler() was called and we had to fall back to the recompiler */
3134
3135 /* HC - R3 and (maybe) R0: */
3136
3137 /* RZ & R3: */
3138 STAMPROFILE StatRZSyncCR3; /**< RC/R0: PGMSyncCR3() profiling. */
3139 STAMPROFILE StatRZSyncCR3Handlers; /**< RC/R0: Profiling of the PGMSyncCR3() update handler section. */
3140 STAMCOUNTER StatRZSyncCR3Global; /**< RC/R0: The number of global CR3 syncs. */
3141 STAMCOUNTER StatRZSyncCR3NotGlobal; /**< RC/R0: The number of non-global CR3 syncs. */
3142 STAMCOUNTER StatRZSyncCR3DstCacheHit; /**< RC/R0: The number of times we got some kind of cache hit on a page table. */
3143 STAMCOUNTER StatRZSyncCR3DstFreed; /**< RC/R0: The number of times we've had to free a shadow entry. */
3144 STAMCOUNTER StatRZSyncCR3DstFreedSrcNP; /**< RC/R0: The number of times we've had to free a shadow entry for which the source entry was not present. */
3145 STAMCOUNTER StatRZSyncCR3DstNotPresent; /**< RC/R0: The number of times we've encountered a not present shadow entry for a present guest entry. */
3146 STAMCOUNTER StatRZSyncCR3DstSkippedGlobalPD; /**< RC/R0: The number of times a global page directory wasn't flushed. */
3147 STAMCOUNTER StatRZSyncCR3DstSkippedGlobalPT; /**< RC/R0: The number of times a page table with only global entries wasn't flushed. */
3148 STAMPROFILE StatRZSyncPT; /**< RC/R0: PGMSyncPT() profiling. */
3149 STAMCOUNTER StatRZSyncPTFailed; /**< RC/R0: The number of times PGMSyncPT() failed. */
3150 STAMCOUNTER StatRZSyncPT4K; /**< RC/R0: Number of 4KB syncs. */
3151 STAMCOUNTER StatRZSyncPT4M; /**< RC/R0: Number of 4MB syncs. */
3152 STAMCOUNTER StatRZSyncPagePDNAs; /**< RC/R0: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
3153 STAMCOUNTER StatRZSyncPagePDOutOfSync; /**< RC/R0: The number of time we've encountered an out-of-sync PD in SyncPage. */
3154 STAMCOUNTER StatRZAccessedPage; /**< RC/R0: The number of pages marked not present for accessed bit emulation. */
3155 STAMPROFILE StatRZDirtyBitTracking; /**< RC/R0: Profiling the dirty bit tracking in CheckPageFault().. */
3156 STAMCOUNTER StatRZDirtyPage; /**< RC/R0: The number of pages marked read-only for dirty bit tracking. */
3157 STAMCOUNTER StatRZDirtyPageBig; /**< RC/R0: The number of pages marked read-only for dirty bit tracking. */
3158 STAMCOUNTER StatRZDirtyPageSkipped; /**< RC/R0: The number of pages already dirty or readonly. */
3159 STAMCOUNTER StatRZDirtyPageTrap; /**< RC/R0: The number of traps generated for dirty bit tracking. */
3160 STAMCOUNTER StatRZDirtyPageStale; /**< RC/R0: The number of traps generated for dirty bit tracking. (stale tlb entries) */
3161 STAMCOUNTER StatRZDirtyTrackRealPF; /**< RC/R0: The number of real pages faults during dirty bit tracking. */
3162 STAMCOUNTER StatRZDirtiedPage; /**< RC/R0: The number of pages marked dirty because of write accesses. */
3163 STAMCOUNTER StatRZPageAlreadyDirty; /**< RC/R0: The number of pages already marked dirty because of write accesses. */
3164 STAMPROFILE StatRZInvalidatePage; /**< RC/R0: PGMInvalidatePage() profiling. */
3165 STAMCOUNTER StatRZInvalidatePage4KBPages; /**< RC/R0: The number of times PGMInvalidatePage() was called for a 4KB page. */
3166 STAMCOUNTER StatRZInvalidatePage4MBPages; /**< RC/R0: The number of times PGMInvalidatePage() was called for a 4MB page. */
3167 STAMCOUNTER StatRZInvalidatePage4MBPagesSkip; /**< RC/R0: The number of times PGMInvalidatePage() skipped a 4MB page. */
3168 STAMCOUNTER StatRZInvalidatePagePDMappings; /**< RC/R0: The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict). */
3169 STAMCOUNTER StatRZInvalidatePagePDNAs; /**< RC/R0: The number of times PGMInvalidatePage() was called for a not accessed page directory. */
3170 STAMCOUNTER StatRZInvalidatePagePDNPs; /**< RC/R0: The number of times PGMInvalidatePage() was called for a not present page directory. */
3171 STAMCOUNTER StatRZInvalidatePagePDOutOfSync; /**< RC/R0: The number of times PGMInvalidatePage() was called for an out of sync page directory. */
3172 STAMCOUNTER StatRZInvalidatePageSkipped; /**< RC/R0: The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
3173 STAMCOUNTER StatRZPageOutOfSyncUser; /**< RC/R0: The number of times user page is out of sync was detected in \#PF or VerifyAccessSyncPage. */
3174 STAMCOUNTER StatRZPageOutOfSyncSupervisor; /**< RC/R0: The number of times supervisor page is out of sync was detected in in \#PF or VerifyAccessSyncPage. */
3175 STAMCOUNTER StatRZPageOutOfSyncUserWrite; /**< RC/R0: The number of times user page is out of sync was detected in \#PF. */
3176 STAMCOUNTER StatRZPageOutOfSyncSupervisorWrite; /**< RC/R0: The number of times supervisor page is out of sync was detected in in \#PF. */
3177 STAMPROFILE StatRZPrefetch; /**< RC/R0: PGMPrefetchPage. */
3178 STAMPROFILE StatRZFlushTLB; /**< RC/R0: Profiling of the PGMFlushTLB() body. */
3179 STAMCOUNTER StatRZFlushTLBNewCR3; /**< RC/R0: The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) */
3180 STAMCOUNTER StatRZFlushTLBNewCR3Global; /**< RC/R0: The number of times PGMFlushTLB was called with a new CR3, global. (switch) */
3181 STAMCOUNTER StatRZFlushTLBSameCR3; /**< RC/R0: The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) */
3182 STAMCOUNTER StatRZFlushTLBSameCR3Global; /**< RC/R0: The number of times PGMFlushTLB was called with the same CR3, global. (flush) */
3183 STAMPROFILE StatRZGstModifyPage; /**< RC/R0: Profiling of the PGMGstModifyPage() body */
3184
3185 STAMPROFILE StatR3SyncCR3; /**< R3: PGMSyncCR3() profiling. */
3186 STAMPROFILE StatR3SyncCR3Handlers; /**< R3: Profiling of the PGMSyncCR3() update handler section. */
3187 STAMCOUNTER StatR3SyncCR3Global; /**< R3: The number of global CR3 syncs. */
3188 STAMCOUNTER StatR3SyncCR3NotGlobal; /**< R3: The number of non-global CR3 syncs. */
3189 STAMCOUNTER StatR3SyncCR3DstFreed; /**< R3: The number of times we've had to free a shadow entry. */
3190 STAMCOUNTER StatR3SyncCR3DstFreedSrcNP; /**< R3: The number of times we've had to free a shadow entry for which the source entry was not present. */
3191 STAMCOUNTER StatR3SyncCR3DstNotPresent; /**< R3: The number of times we've encountered a not present shadow entry for a present guest entry. */
3192 STAMCOUNTER StatR3SyncCR3DstSkippedGlobalPD; /**< R3: The number of times a global page directory wasn't flushed. */
3193 STAMCOUNTER StatR3SyncCR3DstSkippedGlobalPT; /**< R3: The number of times a page table with only global entries wasn't flushed. */
3194 STAMCOUNTER StatR3SyncCR3DstCacheHit; /**< R3: The number of times we got some kind of cache hit on a page table. */
3195 STAMPROFILE StatR3SyncPT; /**< R3: PGMSyncPT() profiling. */
3196 STAMCOUNTER StatR3SyncPTFailed; /**< R3: The number of times PGMSyncPT() failed. */
3197 STAMCOUNTER StatR3SyncPT4K; /**< R3: Number of 4KB syncs. */
3198 STAMCOUNTER StatR3SyncPT4M; /**< R3: Number of 4MB syncs. */
3199 STAMCOUNTER StatR3SyncPagePDNAs; /**< R3: The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit. */
3200 STAMCOUNTER StatR3SyncPagePDOutOfSync; /**< R3: The number of time we've encountered an out-of-sync PD in SyncPage. */
3201 STAMCOUNTER StatR3AccessedPage; /**< R3: The number of pages marked not present for accessed bit emulation. */
3202 STAMPROFILE StatR3DirtyBitTracking; /**< R3: Profiling the dirty bit tracking in CheckPageFault(). */
3203 STAMCOUNTER StatR3DirtyPage; /**< R3: The number of pages marked read-only for dirty bit tracking. */
3204 STAMCOUNTER StatR3DirtyPageBig; /**< R3: The number of pages marked read-only for dirty bit tracking. */
3205 STAMCOUNTER StatR3DirtyPageSkipped; /**< R3: The number of pages already dirty or readonly. */
3206 STAMCOUNTER StatR3DirtyPageTrap; /**< R3: The number of traps generated for dirty bit tracking. */
3207 STAMCOUNTER StatR3DirtyTrackRealPF; /**< R3: The number of real pages faults during dirty bit tracking. */
3208 STAMCOUNTER StatR3DirtiedPage; /**< R3: The number of pages marked dirty because of write accesses. */
3209 STAMCOUNTER StatR3PageAlreadyDirty; /**< R3: The number of pages already marked dirty because of write accesses. */
3210 STAMPROFILE StatR3InvalidatePage; /**< R3: PGMInvalidatePage() profiling. */
3211 STAMCOUNTER StatR3InvalidatePage4KBPages; /**< R3: The number of times PGMInvalidatePage() was called for a 4KB page. */
3212 STAMCOUNTER StatR3InvalidatePage4MBPages; /**< R3: The number of times PGMInvalidatePage() was called for a 4MB page. */
3213 STAMCOUNTER StatR3InvalidatePage4MBPagesSkip; /**< R3: The number of times PGMInvalidatePage() skipped a 4MB page. */
3214 STAMCOUNTER StatR3InvalidatePagePDNAs; /**< R3: The number of times PGMInvalidatePage() was called for a not accessed page directory. */
3215 STAMCOUNTER StatR3InvalidatePagePDNPs; /**< R3: The number of times PGMInvalidatePage() was called for a not present page directory. */
3216 STAMCOUNTER StatR3InvalidatePagePDMappings; /**< R3: The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict). */
3217 STAMCOUNTER StatR3InvalidatePagePDOutOfSync; /**< R3: The number of times PGMInvalidatePage() was called for an out of sync page directory. */
3218 STAMCOUNTER StatR3InvalidatePageSkipped; /**< R3: The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3. */
3219 STAMCOUNTER StatR3PageOutOfSyncUser; /**< R3: The number of times user page is out of sync was detected in \#PF or VerifyAccessSyncPage. */
3220 STAMCOUNTER StatR3PageOutOfSyncSupervisor; /**< R3: The number of times supervisor page is out of sync was detected in in \#PF or VerifyAccessSyncPage. */
3221 STAMCOUNTER StatR3PageOutOfSyncUserWrite; /**< R3: The number of times user page is out of sync was detected in \#PF. */
3222 STAMCOUNTER StatR3PageOutOfSyncSupervisorWrite; /**< R3: The number of times supervisor page is out of sync was detected in in \#PF. */
3223 STAMPROFILE StatR3Prefetch; /**< R3: PGMPrefetchPage. */
3224 STAMPROFILE StatR3FlushTLB; /**< R3: Profiling of the PGMFlushTLB() body. */
3225 STAMCOUNTER StatR3FlushTLBNewCR3; /**< R3: The number of times PGMFlushTLB was called with a new CR3, non-global. (switch) */
3226 STAMCOUNTER StatR3FlushTLBNewCR3Global; /**< R3: The number of times PGMFlushTLB was called with a new CR3, global. (switch) */
3227 STAMCOUNTER StatR3FlushTLBSameCR3; /**< R3: The number of times PGMFlushTLB was called with the same CR3, non-global. (flush) */
3228 STAMCOUNTER StatR3FlushTLBSameCR3Global; /**< R3: The number of times PGMFlushTLB was called with the same CR3, global. (flush) */
3229 STAMPROFILE StatR3GstModifyPage; /**< R3: Profiling of the PGMGstModifyPage() body */
3230 /** @} */
3231#endif /* VBOX_WITH_STATISTICS */
3232} PGMCPU;
3233/** Pointer to the per-cpu PGM data. */
3234typedef PGMCPU *PPGMCPU;
3235
3236
3237/** @name PGM::fSyncFlags Flags
3238 * @{
3239 */
3240/** Updates the virtual access handler state bit in PGMPAGE. */
3241#define PGM_SYNC_UPDATE_PAGE_BIT_VIRTUAL RT_BIT(0)
3242/** Always sync CR3. */
3243#define PGM_SYNC_ALWAYS RT_BIT(1)
3244/** Check monitoring on next CR3 (re)load and invalidate page.
3245 * @todo This is obsolete now. Remove after 2.2.0 is branched off. */
3246#define PGM_SYNC_MONITOR_CR3 RT_BIT(2)
3247/** Check guest mapping in SyncCR3. */
3248#define PGM_SYNC_MAP_CR3 RT_BIT(3)
3249/** Clear the page pool (a light weight flush). */
3250#define PGM_SYNC_CLEAR_PGM_POOL_BIT 8
3251#define PGM_SYNC_CLEAR_PGM_POOL RT_BIT(PGM_SYNC_CLEAR_PGM_POOL_BIT)
3252/** @} */
3253
3254
3255RT_C_DECLS_BEGIN
3256
3257int pgmLock(PVM pVM);
3258void pgmUnlock(PVM pVM);
3259
3260int pgmR3MappingsFixInternal(PVM pVM, RTGCPTR GCPtrBase, uint32_t cb);
3261int pgmR3SyncPTResolveConflict(PVM pVM, PPGMMAPPING pMapping, PX86PD pPDSrc, RTGCPTR GCPtrOldMapping);
3262int pgmR3SyncPTResolveConflictPAE(PVM pVM, PPGMMAPPING pMapping, RTGCPTR GCPtrOldMapping);
3263PPGMMAPPING pgmGetMapping(PVM pVM, RTGCPTR GCPtr);
3264int pgmMapResolveConflicts(PVM pVM);
3265DECLCALLBACK(void) pgmR3MapInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
3266
3267void pgmR3HandlerPhysicalUpdateAll(PVM pVM);
3268bool pgmHandlerPhysicalIsAll(PVM pVM, RTGCPHYS GCPhys);
3269void pgmHandlerPhysicalResetAliasedPage(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhysPage);
3270int pgmHandlerVirtualFindByPhysAddr(PVM pVM, RTGCPHYS GCPhys, PPGMVIRTHANDLER *ppVirt, unsigned *piPage);
3271DECLCALLBACK(int) pgmHandlerVirtualResetOne(PAVLROGCPTRNODECORE pNode, void *pvUser);
3272#if defined(VBOX_STRICT) || defined(LOG_ENABLED)
3273void pgmHandlerVirtualDumpPhysPages(PVM pVM);
3274#else
3275# define pgmHandlerVirtualDumpPhysPages(a) do { } while (0)
3276#endif
3277DECLCALLBACK(void) pgmR3InfoHandlers(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
3278int pgmR3InitSavedState(PVM pVM, uint64_t cbRam);
3279
3280int pgmPhysAllocPage(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3281int pgmPhysPageLoadIntoTlb(PPGM pPGM, RTGCPHYS GCPhys);
3282int pgmPhysPageLoadIntoTlbWithPage(PPGM pPGM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3283void pgmPhysPageMakeWriteMonitoredWritable(PVM pVM, PPGMPAGE pPage);
3284int pgmPhysPageMakeWritable(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3285int pgmPhysPageMakeWritableUnlocked(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys);
3286int pgmPhysPageMakeWritableAndMap(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3287int pgmPhysPageMap(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3288int pgmPhysPageMapReadOnly(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void const **ppv);
3289int pgmPhysPageMapByPageID(PVM pVM, uint32_t idPage, RTHCPHYS HCPhys, void **ppv);
3290int pgmPhysGCPhys2CCPtrInternal(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, void **ppv);
3291int pgmPhysGCPhys2CCPtrInternalReadOnly(PVM pVM, PPGMPAGE pPage, RTGCPHYS GCPhys, const void **ppv);
3292VMMDECL(int) pgmPhysRomWriteHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
3293#ifdef IN_RING3
3294void pgmR3PhysRelinkRamRanges(PVM pVM);
3295int pgmR3PhysRamPreAllocate(PVM pVM);
3296int pgmR3PhysRamReset(PVM pVM);
3297int pgmR3PhysRomReset(PVM pVM);
3298int pgmR3PhysChunkMap(PVM pVM, uint32_t idChunk, PPPGMCHUNKR3MAP ppChunk);
3299
3300int pgmR3PoolInit(PVM pVM);
3301void pgmR3PoolRelocate(PVM pVM);
3302void pgmR3PoolResetUnpluggedCpu(PVM pVM, PVMCPU pVCpu);
3303void pgmR3PoolReset(PVM pVM);
3304void pgmR3PoolClearAll(PVM pVM);
3305DECLCALLBACK(VBOXSTRICTRC) pgmR3PoolClearAllRendezvous(PVM pVM, PVMCPU pVCpu, void *pvUser);
3306
3307#endif /* IN_RING3 */
3308#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE_IN_R0
3309int pgmR0DynMapHCPageCommon(PVM pVM, PPGMMAPSET pSet, RTHCPHYS HCPhys, void **ppv);
3310#endif
3311int pgmPoolAllocEx(PVM pVM, RTGCPHYS GCPhys, PGMPOOLKIND enmKind, PGMPOOLACCESS enmAccess, uint16_t iUser, uint32_t iUserTable, PPPGMPOOLPAGE ppPage, bool fLockPage = false);
3312
3313DECLINLINE(int) pgmPoolAlloc(PVM pVM, RTGCPHYS GCPhys, PGMPOOLKIND enmKind, uint16_t iUser, uint32_t iUserTable, PPPGMPOOLPAGE ppPage, bool fLockPage = false)
3314{
3315 return pgmPoolAllocEx(pVM, GCPhys, enmKind, PGMPOOLACCESS_DONTCARE, iUser, iUserTable, ppPage, fLockPage);
3316}
3317
3318void pgmPoolFree(PVM pVM, RTHCPHYS HCPhys, uint16_t iUser, uint32_t iUserTable);
3319void pgmPoolFreeByPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, uint16_t iUser, uint32_t iUserTable);
3320int pgmPoolFlushPage(PPGMPOOL pPool, PPGMPOOLPAGE pPage, bool fFlush = true /* DO NOT USE false UNLESS YOU KNOWN WHAT YOU'RE DOING!! */);
3321void pgmPoolFlushPageByGCPhys(PVM pVM, RTGCPHYS GCPhys);
3322PPGMPOOLPAGE pgmPoolGetPage(PPGMPOOL pPool, RTHCPHYS HCPhys);
3323int pgmPoolSyncCR3(PVMCPU pVCpu);
3324bool pgmPoolIsDirtyPage(PVM pVM, RTGCPHYS GCPhys);
3325int pgmPoolTrackUpdateGCPhys(PVM pVM, PPGMPAGE pPhysPage, bool fFlushPTEs, bool *pfFlushTLBs);
3326void pgmPoolInvalidateDirtyPage(PVM pVM, RTGCPHYS GCPhysPT);
3327DECLINLINE(int) pgmPoolTrackFlushGCPhys(PVM pVM, PPGMPAGE pPhysPage, bool *pfFlushTLBs)
3328{
3329 return pgmPoolTrackUpdateGCPhys(pVM, pPhysPage, true /* flush PTEs */, pfFlushTLBs);
3330}
3331
3332uint16_t pgmPoolTrackPhysExtAddref(PVM pVM, uint16_t u16, uint16_t iShwPT);
3333void pgmPoolTrackPhysExtDerefGCPhys(PPGMPOOL pPool, PPGMPOOLPAGE pPoolPage, PPGMPAGE pPhysPage);
3334void pgmPoolTracDerefGCPhysHint(PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTHCPHYS HCPhys, RTGCPHYS GCPhysHint);
3335void pgmPoolMonitorChainChanging(PVMCPU pVCpu, PPGMPOOL pPool, PPGMPOOLPAGE pPage, RTGCPHYS GCPhysFault, CTXTYPE(RTGCPTR, RTHCPTR, RTGCPTR) pvAddress, unsigned cbWrite);
3336int pgmPoolMonitorChainFlush(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
3337void pgmPoolMonitorModifiedInsert(PPGMPOOL pPool, PPGMPOOLPAGE pPage);
3338
3339void pgmPoolAddDirtyPage(PVM pVM, PPGMPOOL pPool, PPGMPOOLPAGE pPage);
3340void pgmPoolResetDirtyPages(PVM pVM);
3341
3342int pgmR3ExitShadowModeBeforePoolFlush(PVM pVM, PVMCPU pVCpu);
3343int pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu);
3344
3345void pgmMapSetShadowPDEs(PVM pVM, PPGMMAPPING pMap, unsigned iNewPDE);
3346void pgmMapClearShadowPDEs(PVM pVM, PPGMPOOLPAGE pShwPageCR3, PPGMMAPPING pMap, unsigned iOldPDE, bool fDeactivateCR3);
3347int pgmMapActivateCR3(PVM pVM, PPGMPOOLPAGE pShwPageCR3);
3348int pgmMapDeactivateCR3(PVM pVM, PPGMPOOLPAGE pShwPageCR3);
3349
3350int pgmShwSyncPaePDPtr(PVMCPU pVCpu, RTGCPTR GCPtr, PX86PDPE pGstPdpe, PX86PDPAE *ppPD);
3351#ifndef IN_RC
3352int pgmShwSyncLongModePDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, PX86PML4E pGstPml4e, PX86PDPE pGstPdpe, PX86PDPAE *ppPD);
3353#endif
3354int pgmShwGetEPTPDPtr(PVMCPU pVCpu, RTGCPTR64 GCPtr, PEPTPDPT *ppPdpt, PEPTPD *ppPD);
3355
3356PX86PD pgmGstLazyMap32BitPD(PPGMCPU pPGM);
3357PX86PDPT pgmGstLazyMapPaePDPT(PPGMCPU pPGM);
3358PX86PDPAE pgmGstLazyMapPaePD(PPGMCPU pPGM, uint32_t iPdpt);
3359PX86PML4 pgmGstLazyMapPml4(PPGMCPU pPGM);
3360
3361RT_C_DECLS_END
3362
3363/** @} */
3364
3365#endif
3366
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