MMInternal.h@ 14398

Last change on this file since 14398 was 14155, checked in by vboxsync, 16 years ago
#1865: MM - dealt with the last R3R0PTRTYPEs.
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1	/* $Id: MMInternal.h 14155 2008-11-12 23:55:08Z vboxsync $ */
2	/** @file
3	* MM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	#ifndef ___MMInternal_h
23	#define ___MMInternal_h
24
25	#include <VBox/cdefs.h>
26	#include <VBox/types.h>
27	#include <VBox/sup.h>
28	#include <VBox/stam.h>
29	#include <iprt/avl.h>
30	#include <iprt/critsect.h>
31
32
33
34	/** @defgroup grp_mm_int Internals
35	* @internal
36	* @ingroup grp_mm
37	* @{
38	*/
39
40	/** @name VM Ring-3 Heap Internals
41	* @{
42	*/
43
44	/** @def MMR3HEAP_WITH_STATISTICS
45	* Enable MMR3Heap statistics.
46	*/
47	#if !defined(MMR3HEAP_WITH_STATISTICS) && defined(VBOX_WITH_STATISTICS)
48	# define MMR3HEAP_WITH_STATISTICS
49	#endif
50
51	/** @def MMR3HEAP_SIZE_ALIGNMENT
52	* The allocation size alignment of the MMR3Heap.
53	*/
54	#define MMR3HEAP_SIZE_ALIGNMENT 16
55
56	/**
57	* Heap statistics record.
58	* There is one global and one per allocation tag.
59	*/
60	typedef struct MMHEAPSTAT
61	{
62	/** Core avl node, key is the tag. */
63	AVLULNODECORE Core;
64	/** Pointer to the heap the memory belongs to. */
65	struct MMHEAP *pHeap;
66	#ifdef MMR3HEAP_WITH_STATISTICS
67	/** Number of allocation. */
68	uint64_t cAllocations;
69	/** Number of reallocations. */
70	uint64_t cReallocations;
71	/** Number of frees. */
72	uint64_t cFrees;
73	/** Failures. */
74	uint64_t cFailures;
75	/** Number of bytes allocated (sum). */
76	uint64_t cbAllocated;
77	/** Number of bytes freed. */
78	uint64_t cbFreed;
79	/** Number of bytes currently allocated. */
80	size_t cbCurAllocated;
81	#endif
82	} MMHEAPSTAT;
83	/** Pointer to heap statistics record. */
84	typedef MMHEAPSTAT *PMMHEAPSTAT;
85
86
87
88	/**
89	* Additional heap block header for relating allocations to the VM.
90	*/
91	typedef struct MMHEAPHDR
92	{
93	/** Pointer to the next record. */
94	struct MMHEAPHDR *pNext;
95	/** Pointer to the previous record. */
96	struct MMHEAPHDR *pPrev;
97	/** Pointer to the heap statistics record.
98	* (Where the a PVM can be found.) */
99	PMMHEAPSTAT pStat;
100	/** Size of the allocation (including this header). */
101	size_t cbSize;
102	} MMHEAPHDR;
103	/** Pointer to MM heap header. */
104	typedef MMHEAPHDR *PMMHEAPHDR;
105
106
107	/** MM Heap structure. */
108	typedef struct MMHEAP
109	{
110	/** Lock protecting the heap. */
111	RTCRITSECT Lock;
112	/** Heap block list head. */
113	PMMHEAPHDR pHead;
114	/** Heap block list tail. */
115	PMMHEAPHDR pTail;
116	/** Heap per tag statistics tree. */
117	PAVLULNODECORE pStatTree;
118	/** The VM handle. */
119	PUVM pUVM;
120	/** Heap global statistics. */
121	MMHEAPSTAT Stat;
122	} MMHEAP;
123	/** Pointer to MM Heap structure. */
124	typedef MMHEAP *PMMHEAP;
125
126	/** @} */
127
128
129
130	/** @name Hypervisor Heap Internals
131	* @{
132	*/
133
134	/** @def MMHYPER_HEAP_FREE_DELAY
135	* If defined, it indicates the number of frees that should be delayed.
136	*/
137	#if defined(DOXYGEN_RUNNING)
138	# define MMHYPER_HEAP_FREE_DELAY 64
139	#endif
140
141	/** @def MMHYPER_HEAP_FREE_POISON
142	* If defined, it indicates that freed memory should be poisoned
143	* with the value it has.
144	*/
145	#if defined(VBOX_STRICT) \|\| defined(DOXYGEN_RUNNING)
146	# define MMHYPER_HEAP_FREE_POISON 0xcb
147	#endif
148
149	/** @def MMHYPER_HEAP_STRICT
150	* Enables a bunch of assertions in the heap code. */
151	#if defined(VBOX_STRICT) \|\| defined(DOXYGEN_RUNNING)
152	# define MMHYPER_HEAP_STRICT 1
153	# if 0 \|\| defined(DOXYGEN_RUNNING)
154	/** @def MMHYPER_HEAP_STRICT_FENCE
155	* Enables tail fence. */
156	# define MMHYPER_HEAP_STRICT_FENCE
157	/** @def MMHYPER_HEAP_STRICT_FENCE_SIZE
158	* The fence size in bytes. */
159	# define MMHYPER_HEAP_STRICT_FENCE_SIZE 256
160	/** @def MMHYPER_HEAP_STRICT_FENCE_U32
161	* The fence filler. */
162	# define MMHYPER_HEAP_STRICT_FENCE_U32 UINT32_C(0xdeadbeef)
163	# endif
164	#endif
165
166	/**
167	* Hypervisor heap statistics record.
168	* There is one global and one per allocation tag.
169	*/
170	typedef struct MMHYPERSTAT
171	{
172	/** Core avl node, key is the tag.
173	* @todo The type is wrong! Get your lazy a$$ over and create that offsetted uint32_t version we need here! */
174	AVLOGCPHYSNODECORE Core;
175	/** Aligning the 64-bit fields on a 64-bit line. */
176	uint32_t u32Padding0;
177	/** Indicator for whether these statistics are registered with STAM or not. */
178	bool fRegistered;
179	/** Number of allocation. */
180	uint64_t cAllocations;
181	/** Number of frees. */
182	uint64_t cFrees;
183	/** Failures. */
184	uint64_t cFailures;
185	/** Number of bytes allocated (sum). */
186	uint64_t cbAllocated;
187	/** Number of bytes freed (sum). */
188	uint64_t cbFreed;
189	/** Number of bytes currently allocated. */
190	uint32_t cbCurAllocated;
191	/** Max number of bytes allocated. */
192	uint32_t cbMaxAllocated;
193	} MMHYPERSTAT;
194	/** Pointer to hypervisor heap statistics record. */
195	typedef MMHYPERSTAT *PMMHYPERSTAT;
196
197	/**
198	* Hypervisor heap chunk.
199	*/
200	typedef struct MMHYPERCHUNK
201	{
202	/** Previous block in the list of all blocks.
203	* This is relative to the start of the heap. */
204	uint32_t offNext;
205	/** Offset to the previous block relative to this one. */
206	int32_t offPrev;
207	/** The statistics record this allocation belongs to (self relative). */
208	int32_t offStat;
209	/** Offset to the heap block (self relative). */
210	int32_t offHeap;
211	} MMHYPERCHUNK;
212	/** Pointer to a hypervisor heap chunk. */
213	typedef MMHYPERCHUNK *PMMHYPERCHUNK;
214
215
216	/**
217	* Hypervisor heap chunk.
218	*/
219	typedef struct MMHYPERCHUNKFREE
220	{
221	/** Main list. */
222	MMHYPERCHUNK core;
223	/** Offset of the next chunk in the list of free nodes. */
224	uint32_t offNext;
225	/** Offset of the previous chunk in the list of free nodes. */
226	int32_t offPrev;
227	/** Size of the block. */
228	uint32_t cb;
229	} MMHYPERCHUNKFREE;
230	/** Pointer to a free hypervisor heap chunk. */
231	typedef MMHYPERCHUNKFREE *PMMHYPERCHUNKFREE;
232
233
234	/**
235	* The hypervisor heap.
236	*/
237	typedef struct MMHYPERHEAP
238	{
239	/** The typical magic (MMHYPERHEAP_MAGIC). */
240	uint32_t u32Magic;
241	/** The heap size. (This structure is not included!) */
242	uint32_t cbHeap;
243	/** The HC ring-3 address of the heap. */
244	R3PTRTYPE(uint8_t *) pbHeapR3;
245	/** The HC ring-3 address of the shared VM strcture. */
246	PVMR3 pVMR3;
247	/** The HC ring-0 address of the heap. */
248	R0PTRTYPE(uint8_t *) pbHeapR0;
249	/** The HC ring-0 address of the shared VM strcture. */
250	PVMR0 pVMR0;
251	/** The RC address of the heap. */
252	RCPTRTYPE(uint8_t *) pbHeapRC;
253	/** The RC address of the shared VM strcture. */
254	PVMRC pVMRC;
255	/** The amount of free memory in the heap. */
256	uint32_t cbFree;
257	/** Offset of the first free chunk in the heap.
258	* The offset is relative to the start of the heap. */
259	uint32_t offFreeHead;
260	/** Offset of the last free chunk in the heap.
261	* The offset is relative to the start of the heap. */
262	uint32_t offFreeTail;
263	/** Offset of the first page aligned block in the heap.
264	* The offset is equal to cbHeap initially. */
265	uint32_t offPageAligned;
266	/** Tree of hypervisor heap statistics. */
267	AVLOGCPHYSTREE HyperHeapStatTree;
268	#ifdef MMHYPER_HEAP_FREE_DELAY
269	/** Where to insert the next free. */
270	uint32_t iDelayedFree;
271	/** Array of delayed frees. Circular. Offsets relative to this structure. */
272	struct
273	{
274	/** The free caller address. */
275	RTUINTPTR uCaller;
276	/** The offset of the freed chunk. */
277	uint32_t offChunk;
278	} aDelayedFrees[MMHYPER_HEAP_FREE_DELAY];
279	#else
280	/** Padding the structure to a 64-bit aligned size. */
281	uint32_t u32Padding0;
282	#endif
283	} MMHYPERHEAP;
284	/** Pointer to the hypervisor heap. */
285	typedef MMHYPERHEAP *PMMHYPERHEAP;
286
287	/** Magic value for MMHYPERHEAP. (C. S. Lewis) */
288	#define MMHYPERHEAP_MAGIC UINT32_C(0x18981129)
289
290
291	/**
292	* Hypervisor heap minimum alignment (16 bytes).
293	*/
294	#define MMHYPER_HEAP_ALIGN_MIN 16
295
296	/**
297	* The aligned size of the the MMHYPERHEAP structure.
298	*/
299	#define MMYPERHEAP_HDR_SIZE RT_ALIGN_Z(sizeof(MMHYPERHEAP), MMHYPER_HEAP_ALIGN_MIN * 4)
300
301	/** @name Hypervisor heap chunk flags.
302	* The flags are put in the first bits of the MMHYPERCHUNK::offPrev member.
303	* These bits aren't used anyway because of the chunk minimal alignment (16 bytes).
304	* @{ */
305	/** The chunk is free. (The code ASSUMES this is 0!) */
306	#define MMHYPERCHUNK_FLAGS_FREE 0x0
307	/** The chunk is in use. */
308	#define MMHYPERCHUNK_FLAGS_USED 0x1
309	/** The type mask. */
310	#define MMHYPERCHUNK_FLAGS_TYPE_MASK 0x1
311	/** The flag mask */
312	#define MMHYPERCHUNK_FLAGS_MASK 0x1
313
314	/** Checks if the chunk is free. */
315	#define MMHYPERCHUNK_ISFREE(pChunk) ( (((pChunk)->offPrev) & MMHYPERCHUNK_FLAGS_TYPE_MASK) == MMHYPERCHUNK_FLAGS_FREE )
316	/** Checks if the chunk is used. */
317	#define MMHYPERCHUNK_ISUSED(pChunk) ( (((pChunk)->offPrev) & MMHYPERCHUNK_FLAGS_TYPE_MASK) == MMHYPERCHUNK_FLAGS_USED )
318	/** Toggles FREE/USED flag of a chunk. */
319	#define MMHYPERCHUNK_SET_TYPE(pChunk, type) do { (pChunk)->offPrev = ((pChunk)->offPrev & ~MMHYPERCHUNK_FLAGS_TYPE_MASK) \| ((type) & MMHYPERCHUNK_FLAGS_TYPE_MASK); } while (0)
320
321	/** Gets the prev offset without the flags. */
322	#define MMHYPERCHUNK_GET_OFFPREV(pChunk) ((int32_t)((pChunk)->offPrev & ~MMHYPERCHUNK_FLAGS_MASK))
323	/** Sets the prev offset without changing the flags. */
324	#define MMHYPERCHUNK_SET_OFFPREV(pChunk, off) do { (pChunk)->offPrev = (off) \| ((pChunk)->offPrev & MMHYPERCHUNK_FLAGS_MASK); } while (0)
325	#if 0
326	/** Clears one or more flags. */
327	#define MMHYPERCHUNK_FLAGS_OP_CLEAR(pChunk, fFlags) do { ((pChunk)->offPrev) &= ~((fFlags) & MMHYPERCHUNK_FLAGS_MASK); } while (0)
328	/** Sets one or more flags. */
329	#define MMHYPERCHUNK_FLAGS_OP_SET(pChunk, fFlags) do { ((pChunk)->offPrev) \|= ((fFlags) & MMHYPERCHUNK_FLAGS_MASK); } while (0)
330	/** Checks if one is set. */
331	#define MMHYPERCHUNK_FLAGS_OP_ISSET(pChunk, fFlag) (!!(((pChunk)->offPrev) & ((fFlag) & MMHYPERCHUNK_FLAGS_MASK)))
332	#endif
333	/** @} */
334
335	/** @} */
336
337
338	/** @name Page Pool Internals
339	* @{
340	*/
341
342	/**
343	* Page sub pool
344	*
345	* About the allocation of this structure. To keep the number of heap blocks,
346	* the number of heap calls, and fragmentation low we allocate all the data
347	* related to a MMPAGESUBPOOL node in one chunk. That means that after the
348	* bitmap (which is of variable size) comes the SUPPAGE records and then
349	* follows the lookup tree nodes. (The heap in question is the hyper heap.)
350	*/
351	typedef struct MMPAGESUBPOOL
352	{
353	/** Pointer to next sub pool. */
354	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
355	R3PTRTYPE(struct MMPAGESUBPOOL *) pNext;
356	#else
357	R3R0PTRTYPE(struct MMPAGESUBPOOL *) pNext;
358	#endif
359	/** Pointer to next sub pool in the free chain.
360	* This is NULL if we're not in the free chain or at the end of it. */
361	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
362	R3PTRTYPE(struct MMPAGESUBPOOL *) pNextFree;
363	#else
364	R3R0PTRTYPE(struct MMPAGESUBPOOL *) pNextFree;
365	#endif
366	/** Pointer to array of lock ranges.
367	* This is allocated together with the MMPAGESUBPOOL and thus needs no freeing.
368	* It follows immediately after the bitmap.
369	* The reserved field is a pointer to this structure.
370	*/
371	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
372	R3PTRTYPE(PSUPPAGE) paPhysPages;
373	#else
374	R3R0PTRTYPE(PSUPPAGE) paPhysPages;
375	#endif
376	/** Pointer to the first page. */
377	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
378	R3PTRTYPE(void *) pvPages;
379	#else
380	R3R0PTRTYPE(void *) pvPages;
381	#endif
382	/** Size of the subpool. */
383	uint32_t cPages;
384	/** Number of free pages. */
385	uint32_t cPagesFree;
386	/** The allocation bitmap.
387	* This may extend beyond the end of the defined array size.
388	*/
389	uint32_t auBitmap[1];
390	/* ... SUPPAGE aRanges[1]; */
391	} MMPAGESUBPOOL;
392	/** Pointer to page sub pool. */
393	typedef MMPAGESUBPOOL *PMMPAGESUBPOOL;
394
395	/**
396	* Page pool.
397	*/
398	typedef struct MMPAGEPOOL
399	{
400	/** List of subpools. */
401	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
402	R3PTRTYPE(PMMPAGESUBPOOL) pHead;
403	#else
404	R3R0PTRTYPE(PMMPAGESUBPOOL) pHead;
405	#endif
406	/** Head of subpools with free pages. */
407	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
408	R3PTRTYPE(PMMPAGESUBPOOL) pHeadFree;
409	#else
410	R3R0PTRTYPE(PMMPAGESUBPOOL) pHeadFree;
411	#endif
412	/** AVLPV tree for looking up HC virtual addresses.
413	* The tree contains MMLOOKUPVIRTPP records.
414	*/
415	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
416	R3PTRTYPE(PAVLPVNODECORE) pLookupVirt;
417	#else
418	R3R0PTRTYPE(PAVLPVNODECORE) pLookupVirt;
419	#endif
420	/** Tree for looking up HC physical addresses.
421	* The tree contains MMLOOKUPPHYSHC records.
422	*/
423	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
424	R3PTRTYPE(AVLHCPHYSTREE) pLookupPhys;
425	#else
426	R3R0PTRTYPE(AVLHCPHYSTREE) pLookupPhys;
427	#endif
428	/** Pointer to the VM this pool belongs. */
429	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
430	PVMR3 pVM;
431	#else
432	R3R0PTRTYPE(PVM) pVM;
433	#endif
434	/** Flag indicating the allocation method.
435	* Set: SUPLowAlloc().
436	* Clear: SUPPageAlloc() + SUPPageLock(). */
437	bool fLow;
438	/** Number of subpools. */
439	uint32_t cSubPools;
440	/** Number of pages in pool. */
441	uint32_t cPages;
442	#ifdef VBOX_WITH_STATISTICS
443	/** Number of free pages in pool. */
444	uint32_t cFreePages;
445	/** Number of alloc calls. */
446	STAMCOUNTER cAllocCalls;
447	/** Number of free calls. */
448	STAMCOUNTER cFreeCalls;
449	/** Number of to phys conversions. */
450	STAMCOUNTER cToPhysCalls;
451	/** Number of to virtual conversions. */
452	STAMCOUNTER cToVirtCalls;
453	/** Number of real errors. */
454	STAMCOUNTER cErrors;
455	#endif
456	} MMPAGEPOOL;
457	/** Pointer to page pool. */
458	typedef MMPAGEPOOL *PMMPAGEPOOL;
459
460	/**
461	* Lookup record for HC virtual memory in the page pool.
462	*/
463	typedef struct MMPPLOOKUPHCPTR
464	{
465	/** The key is virtual address. */
466	AVLPVNODECORE Core;
467	/** Pointer to subpool if lookup record for a pool. */
468	struct MMPAGESUBPOOL *pSubPool;
469	} MMPPLOOKUPHCPTR;
470	/** Pointer to virtual memory lookup record. */
471	typedef MMPPLOOKUPHCPTR *PMMPPLOOKUPHCPTR;
472
473	/**
474	* Lookup record for HC physical memory.
475	*/
476	typedef struct MMPPLOOKUPHCPHYS
477	{
478	/** The key is physical address. */
479	AVLHCPHYSNODECORE Core;
480	/** Pointer to SUPPAGE record for this physical address. */
481	PSUPPAGE pPhysPage;
482	} MMPPLOOKUPHCPHYS;
483	/** Pointer to physical memory lookup record. */
484	typedef MMPPLOOKUPHCPHYS *PMMPPLOOKUPHCPHYS;
485
486	/** @} */
487
488
489
490	/**
491	* Type of memory that's locked.
492	*/
493	typedef enum MMLOCKEDTYPE
494	{
495	/** Hypervisor: Ring-3 memory locked by MM. */
496	MM_LOCKED_TYPE_HYPER,
497	/** Hypervisor: Ring-3 memory locked by MM that shouldn't be freed up. */
498	MM_LOCKED_TYPE_HYPER_NOFREE,
499	/** Hypervisor: Pre-locked ring-3 pages. */
500	MM_LOCKED_TYPE_HYPER_PAGES,
501	/** Guest: Physical VM memory (RAM & MMIO2). */
502	MM_LOCKED_TYPE_PHYS
503	} MMLOCKEDTYPE;
504	/** Pointer to memory type. */
505	typedef MMLOCKEDTYPE *PMMLOCKEDTYPE;
506
507
508	/**
509	* Converts a SUPPAGE pointer to a MMLOCKEDMEM pointer.
510	* @returns Pointer to the MMLOCKEDMEM record the range is associated with.
511	* @param pSupPage Pointer to SUPPAGE structure managed by MM.
512	*/
513	#define MM_SUPRANGE_TO_MMLOCKEDMEM(pSupPage) ((PMMLOCKEDMEM)pSupPage->uReserved)
514
515
516	/**
517	* Locked memory record.
518	*/
519	typedef struct MMLOCKEDMEM
520	{
521	/** Address (host mapping). */
522	void *pv;
523	/** Size. */
524	size_t cb;
525	/** Next record. */
526	struct MMLOCKEDMEM *pNext;
527	/** Record type. */
528	MMLOCKEDTYPE eType;
529	/** Type specific data. */
530	union
531	{
532	/** Data for MM_LOCKED_TYPE_HYPER, MM_LOCKED_TYPE_HYPER_NOFREE and MM_LOCKED_TYPE_HYPER_PAGES. */
533	struct
534	{
535	unsigned uNothing;
536	} hyper;
537
538	/** Data for MM_LOCKED_TYPE_PHYS. */
539	struct
540	{
541	/** The GC physical address.
542	* (Assuming that this is a linear range of GC physical pages.)
543	*/
544	RTGCPHYS GCPhys;
545	} phys;
546	} u;
547
548	/** Physical Page Array. (Variable length.)
549	* The uReserved field contains pointer to the MMLOCKMEM record.
550	* Use the macro MM_SUPPAGE_TO_MMLOCKEDMEM() to convert.
551	*
552	* For MM_LOCKED_TYPE_PHYS the low 12 bits of the pvPhys member
553	* are bits (MM_RAM_FLAGS_*) and not part of the physical address.
554	*/
555	SUPPAGE aPhysPages[1];
556	} MMLOCKEDMEM;
557	/** Pointer to locked memory. */
558	typedef MMLOCKEDMEM *PMMLOCKEDMEM;
559
560
561	/**
562	* A registered Rom range.
563	*
564	* This is used to track ROM registrations both for debug reasons
565	* and for resetting shadow ROM at reset.
566	*
567	* This is allocated of the MMR3Heap and thus only accessibel from ring-3.
568	*/
569	typedef struct MMROMRANGE
570	{
571	/** Pointer to the next */
572	struct MMROMRANGE *pNext;
573	/** Address of the range. */
574	RTGCPHYS GCPhys;
575	/** Size of the range. */
576	uint32_t cbRange;
577	/** Shadow ROM? */
578	bool fShadow;
579	/** Is the shadow ROM currently wriable? */
580	bool fWritable;
581	/** The address of the virgin ROM image for shadow ROM. */
582	const void *pvBinary;
583	/** The address of the guest RAM that's shadowing the ROM. (lazy bird) */
584	void *pvCopy;
585	/** The ROM description. */
586	const char *pszDesc;
587	} MMROMRANGE;
588	/** Pointer to a ROM range. */
589	typedef MMROMRANGE *PMMROMRANGE;
590
591
592	/**
593	* Hypervisor memory mapping type.
594	*/
595	typedef enum MMLOOKUPHYPERTYPE
596	{
597	/** Invalid record. This is used for record which are incomplete. */
598	MMLOOKUPHYPERTYPE_INVALID = 0,
599	/** Mapping of locked memory. */
600	MMLOOKUPHYPERTYPE_LOCKED,
601	/** Mapping of contiguous HC physical memory. */
602	MMLOOKUPHYPERTYPE_HCPHYS,
603	/** Mapping of contiguous GC physical memory. */
604	MMLOOKUPHYPERTYPE_GCPHYS,
605	/** Mapping of MMIO2 memory. */
606	MMLOOKUPHYPERTYPE_MMIO2,
607	/** Dynamic mapping area (MMR3HyperReserve).
608	* A conversion will require to check what's in the page table for the pages. */
609	MMLOOKUPHYPERTYPE_DYNAMIC
610	} MMLOOKUPHYPERTYPE;
611
612	/**
613	* Lookup record for the hypervisor memory area.
614	*/
615	typedef struct MMLOOKUPHYPER
616	{
617	/** Byte offset from the start of this record to the next.
618	* If the value is NIL_OFFSET the chain is terminated. */
619	int32_t offNext;
620	/** Offset into the hypvervisor memory area. */
621	uint32_t off;
622	/** Size of this part. */
623	uint32_t cb;
624	/** Locking type. */
625	MMLOOKUPHYPERTYPE enmType;
626	/** Type specific data */
627	union
628	{
629	/** Locked memory. */
630	struct
631	{
632	/** Host context pointer. */
633	R3PTRTYPE(void *) pvR3;
634	/** Host context ring-0 pointer. */
635	/** @todo #1865: Check if this actually works (doubt it) */
636	RTR0PTR pvR0;
637	/** Pointer to the locked mem record. */
638	R3PTRTYPE(PMMLOCKEDMEM) pLockedMem;
639	} Locked;
640
641	/** Contiguous physical memory. */
642	struct
643	{
644	/** Host context pointer. */
645	R3PTRTYPE(void *) pvR3;
646	/** @todo #1865: Add a pvR0 here! */
647	/** HC physical address corresponding to pvR3. */
648	RTHCPHYS HCPhys;
649	} HCPhys;
650
651	/** Contiguous guest physical memory. */
652	struct
653	{
654	/** The memory address (Guest Context). */
655	RTGCPHYS GCPhys;
656	} GCPhys;
657
658	/** MMIO2 memory. */
659	struct
660	{
661	/** The device instance owning the MMIO2 region. */
662	PPDMDEVINSR3 pDevIns;
663	/** The region number. */
664	uint32_t iRegion;
665	/** The offset into the MMIO2 region. */
666	RTGCPHYS off;
667	} MMIO2;
668	} u;
669	/** Description. */
670	R3PTRTYPE(const char *) pszDesc;
671	} MMLOOKUPHYPER;
672	/** Pointer to a hypervisor memory lookup record. */
673	typedef MMLOOKUPHYPER *PMMLOOKUPHYPER;
674
675
676	/**
677	* Converts a MM pointer into a VM pointer.
678	* @returns Pointer to the VM structure the MM is part of.
679	* @param pMM Pointer to MM instance data.
680	*/
681	#define MM2VM(pMM) ( (PVM)((uint8_t *)pMM - pMM->offVM) )
682
683
684	/**
685	* MM Data (part of VM)
686	*/
687	typedef struct MM
688	{
689	/** Offset to the VM structure.
690	* See MM2VM(). */
691	RTINT offVM;
692
693	/** Set if MMR3InitPaging has been called. */
694	bool fDoneMMR3InitPaging;
695	/** Set if PGM has been initialized and we can safely call PGMR3Map(). */
696	bool fPGMInitialized;
697	#if GC_ARCH_BITS == 64 \|\| HC_ARCH_BITS == 64
698	uint32_t u32Padding1; /*< alignment padding. /
699	#endif
700
701	/** Lookup list for the Hypervisor Memory Area.
702	* The offset is relative to the start of the heap.
703	* Use pHyperHeapR3, pHyperHeapR0 or pHypeRHeapRC to calculate the address.
704	*/
705	RTUINT offLookupHyper;
706
707	/** The offset of the next static mapping in the Hypervisor Memory Area. */
708	RTUINT offHyperNextStatic;
709	/** The size of the HMA.
710	* Starts at 12MB and will be fixed late in the init process. */
711	RTUINT cbHyperArea;
712
713	/** Guest address of the Hypervisor Memory Area.
714	* @remarks It's still a bit open whether this should be change to RTRCPTR or
715	* remain a RTGCPTR. */
716	RTGCPTR pvHyperAreaGC;
717
718	/** The hypervisor heap (GC Ptr). */
719	RCPTRTYPE(PMMHYPERHEAP) pHyperHeapRC;
720	#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 64
721	uint32_t u32Padding2;
722	#endif
723
724	/** The hypervisor heap (R0 Ptr). */
725	R0PTRTYPE(PMMHYPERHEAP) pHyperHeapR0;
726	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
727	/** Page pool - R0 Ptr. */
728	R0PTRTYPE(PMMPAGEPOOL) pPagePoolR0;
729	/** Page pool pages in low memory R0 Ptr. */
730	R0PTRTYPE(PMMPAGEPOOL) pPagePoolLowR0;
731	#endif /* !VBOX_WITH_2X_4GB_ADDR_SPACE */
732
733	/** The hypervisor heap (R3 Ptr). */
734	R3PTRTYPE(PMMHYPERHEAP) pHyperHeapR3;
735	/** Page pool - R3 Ptr. */
736	R3PTRTYPE(PMMPAGEPOOL) pPagePoolR3;
737	/** Page pool pages in low memory R3 Ptr. */
738	R3PTRTYPE(PMMPAGEPOOL) pPagePoolLowR3;
739	/** List of memory locks. (HC only) */
740	R3PTRTYPE(PMMLOCKEDMEM) pLockedMem;
741
742	/** Pointer to the dummy page.
743	* The dummy page is a paranoia thingy used for instance for pure MMIO RAM ranges
744	* to make sure any bugs will not harm whatever the system stores in the first
745	* physical page. */
746	R3PTRTYPE(void *) pvDummyPage;
747	/** Physical address of the dummy page. */
748	RTHCPHYS HCPhysDummyPage;
749
750	/** Size of the base RAM in bytes. (The CFGM RamSize value.) */
751	uint64_t cbRamBase;
752	/** The number of base RAM pages that PGM has reserved (GMM).
753	* @remarks Shadow ROMs will be counted twice (RAM+ROM), so it won't be 1:1 with
754	* what the guest sees. */
755	uint64_t cBasePages;
756	/** The number of shadow pages PGM has reserved (GMM). */
757	uint32_t cShadowPages;
758	/** The number of fixed pages we've reserved (GMM). */
759	uint32_t cFixedPages;
760
761	/** The head of the ROM ranges. */
762	R3PTRTYPE(PMMROMRANGE) pRomHead;
763	} MM;
764	/** Pointer to MM Data (part of VM). */
765	typedef MM *PMM;
766
767
768	/**
769	* MM data kept in the UVM.
770	*/
771	typedef struct MMUSERPERVM
772	{
773	/** Pointer to the MM R3 Heap. */
774	R3PTRTYPE(PMMHEAP) pHeap;
775	} MMUSERPERVM;
776	/** Pointer to the MM data kept in the UVM. */
777	typedef MMUSERPERVM *PMMUSERPERVM;
778
779
780	__BEGIN_DECLS
781
782
783	int mmR3UpdateReservation(PVM pVM);
784
785	int mmR3PagePoolInit(PVM pVM);
786	void mmR3PagePoolTerm(PVM pVM);
787
788	int mmR3HeapCreateU(PUVM pUVM, PMMHEAP *ppHeap);
789	void mmR3HeapDestroy(PMMHEAP pHeap);
790
791	int mmR3HyperInit(PVM pVM);
792	int mmR3HyperInitPaging(PVM pVM);
793
794	int mmR3LockMem(PVM pVM, void pv, size_t cb, MMLOCKEDTYPE eType, PMMLOCKEDMEM ppLockedMem, bool fSilentFailure);
795	int mmR3MapLocked(PVM pVM, PMMLOCKEDMEM pLockedMem, RTGCPTR Addr, unsigned iPage, size_t cPages, unsigned fFlags);
796
797	const char *mmR3GetTagName(MMTAG enmTag);
798
799	void mmR3PhysRomReset(PVM pVM);
800
801	/**
802	* Converts a pool address to a physical address.
803	* The specified allocation type must match with the address.
804	*
805	* @returns Physical address.
806	* @returns NIL_RTHCPHYS if not found or eType is not matching.
807	* @param pPool Pointer to the page pool.
808	* @param pv The address to convert.
809	* @thread The Emulation Thread.
810	*/
811	RTHCPHYS mmPagePoolPtr2Phys(PMMPAGEPOOL pPool, void *pv);
812
813	/**
814	* Converts a pool physical address to a linear address.
815	* The specified allocation type must match with the address.
816	*
817	* @returns Physical address.
818	* @returns NULL if not found or eType is not matching.
819	* @param pPool Pointer to the page pool.
820	* @param HCPhys The address to convert.
821	* @thread The Emulation Thread.
822	*/
823	void *mmPagePoolPhys2Ptr(PMMPAGEPOOL pPool, RTHCPHYS HCPhys);
824
825	__END_DECLS
826
827	/** @} */
828
829	#endif
830

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source: vbox/trunk/src/VBox/VMM/MMInternal.h@ 14398

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