MMInternal.h@ 26944

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1	/* $Id: MMInternal.h 22939 2009-09-11 00:00:02Z 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 <VBox/pdmcritsect.h>
30	#include <iprt/assert.h>
31	#include <iprt/avl.h>
32	#include <iprt/critsect.h>
33
34
35
36	/** @defgroup grp_mm_int Internals
37	* @internal
38	* @ingroup grp_mm
39	* @{
40	*/
41
42
43	/** @name MMR3Heap - VM Ring-3 Heap Internals
44	* @{
45	*/
46
47	/** @def MMR3HEAP_SIZE_ALIGNMENT
48	* The allocation size alignment of the MMR3Heap.
49	*/
50	#define MMR3HEAP_SIZE_ALIGNMENT 16
51
52	/** @def MMR3HEAP_WITH_STATISTICS
53	* Enable MMR3Heap statistics.
54	*/
55	#if !defined(MMR3HEAP_WITH_STATISTICS) && defined(VBOX_WITH_STATISTICS)
56	# define MMR3HEAP_WITH_STATISTICS
57	#endif
58
59	/**
60	* Heap statistics record.
61	* There is one global and one per allocation tag.
62	*/
63	typedef struct MMHEAPSTAT
64	{
65	/** Core avl node, key is the tag. */
66	AVLULNODECORE Core;
67	/** Pointer to the heap the memory belongs to. */
68	struct MMHEAP *pHeap;
69	#ifdef MMR3HEAP_WITH_STATISTICS
70	# if HC_ARCH_BITS == 32
71	/** Aligning the statistics on an 8 byte boundrary (for uint64_t and STAM). */
72	void *pvAlignment;
73	# endif
74	/** Number of allocation. */
75	uint64_t cAllocations;
76	/** Number of reallocations. */
77	uint64_t cReallocations;
78	/** Number of frees. */
79	uint64_t cFrees;
80	/** Failures. */
81	uint64_t cFailures;
82	/** Number of bytes allocated (sum). */
83	uint64_t cbAllocated;
84	/** Number of bytes freed. */
85	uint64_t cbFreed;
86	/** Number of bytes currently allocated. */
87	size_t cbCurAllocated;
88	#endif
89	} MMHEAPSTAT;
90	#if defined(MMR3HEAP_WITH_STATISTICS) && defined(IN_RING3)
91	AssertCompileMemberAlignment(MMHEAPSTAT, cAllocations, 8);
92	#endif
93	/** Pointer to heap statistics record. */
94	typedef MMHEAPSTAT *PMMHEAPSTAT;
95
96
97
98
99	/**
100	* Additional heap block header for relating allocations to the VM.
101	*/
102	typedef struct MMHEAPHDR
103	{
104	/** Pointer to the next record. */
105	struct MMHEAPHDR *pNext;
106	/** Pointer to the previous record. */
107	struct MMHEAPHDR *pPrev;
108	/** Pointer to the heap statistics record.
109	* (Where the a PVM can be found.) */
110	PMMHEAPSTAT pStat;
111	/** Size of the allocation (including this header). */
112	size_t cbSize;
113	} MMHEAPHDR;
114	/** Pointer to MM heap header. */
115	typedef MMHEAPHDR *PMMHEAPHDR;
116
117
118	/** MM Heap structure. */
119	typedef struct MMHEAP
120	{
121	/** Lock protecting the heap. */
122	RTCRITSECT Lock;
123	/** Heap block list head. */
124	PMMHEAPHDR pHead;
125	/** Heap block list tail. */
126	PMMHEAPHDR pTail;
127	/** Heap per tag statistics tree. */
128	PAVLULNODECORE pStatTree;
129	/** The VM handle. */
130	PUVM pUVM;
131	/** Heap global statistics. */
132	MMHEAPSTAT Stat;
133	} MMHEAP;
134	/** Pointer to MM Heap structure. */
135	typedef MMHEAP *PMMHEAP;
136
137	/** @} */
138
139
140	/** @name MMUkHeap - VM User-kernel Heap Internals
141	* @{
142	*/
143
144	/** @def MMUKHEAP_SIZE_ALIGNMENT
145	* The allocation size alignment of the MMR3UkHeap.
146	*/
147	#define MMUKHEAP_SIZE_ALIGNMENT 16
148
149	/** @def MMUKHEAP_WITH_STATISTICS
150	* Enable MMUkHeap statistics.
151	*/
152	#if !defined(MMUKHEAP_WITH_STATISTICS) && defined(VBOX_WITH_STATISTICS)
153	# define MMUKHEAP_WITH_STATISTICS
154	#endif
155
156
157	/**
158	* Heap statistics record.
159	* There is one global and one per allocation tag.
160	*/
161	typedef struct MMUKHEAPSTAT
162	{
163	/** Core avl node, key is the tag. */
164	AVLULNODECORE Core;
165	/** Number of allocation. */
166	uint64_t cAllocations;
167	/** Number of reallocations. */
168	uint64_t cReallocations;
169	/** Number of frees. */
170	uint64_t cFrees;
171	/** Failures. */
172	uint64_t cFailures;
173	/** Number of bytes allocated (sum). */
174	uint64_t cbAllocated;
175	/** Number of bytes freed. */
176	uint64_t cbFreed;
177	/** Number of bytes currently allocated. */
178	size_t cbCurAllocated;
179	} MMUKHEAPSTAT;
180	#ifdef IN_RING3
181	AssertCompileMemberAlignment(MMUKHEAPSTAT, cAllocations, 8);
182	#endif
183	/** Pointer to heap statistics record. */
184	typedef MMUKHEAPSTAT *PMMUKHEAPSTAT;
185
186	/**
187	* Sub heap tracking record.
188	*/
189	typedef struct MMUKHEAPSUB
190	{
191	/** Pointer to the next sub-heap. */
192	struct MMUKHEAPSUB *pNext;
193	/** The base address of the sub-heap. */
194	void *pv;
195	/** The size of the sub-heap. */
196	size_t cb;
197	/** The handle of the simple block pointer. */
198	RTHEAPSIMPLE hSimple;
199	/** The ring-0 address corresponding to MMUKHEAPSUB::pv. */
200	RTR0PTR pvR0;
201	} MMUKHEAPSUB;
202	/** Pointer to a sub-heap tracking record. */
203	typedef MMUKHEAPSUB *PMMUKHEAPSUB;
204
205
206	/** MM User-kernel Heap structure. */
207	typedef struct MMUKHEAP
208	{
209	/** Lock protecting the heap. */
210	RTCRITSECT Lock;
211	/** Head of the sub-heap LIFO. */
212	PMMUKHEAPSUB pSubHeapHead;
213	/** Heap per tag statistics tree. */
214	PAVLULNODECORE pStatTree;
215	/** The VM handle. */
216	PUVM pUVM;
217	#if HC_ARCH_BITS == 32
218	/** Aligning the statistics on an 8 byte boundrary (for uint64_t and STAM). */
219	void *pvAlignment;
220	#endif
221	/** Heap global statistics. */
222	MMUKHEAPSTAT Stat;
223	} MMUKHEAP;
224	#ifdef IN_RING3
225	AssertCompileMemberAlignment(MMUKHEAP, Stat, 8);
226	#endif
227	/** Pointer to MM Heap structure. */
228	typedef MMUKHEAP *PMMUKHEAP;
229
230	/** @} */
231
232
233
234	/** @name Hypervisor Heap Internals
235	* @{
236	*/
237
238	/** @def MMHYPER_HEAP_FREE_DELAY
239	* If defined, it indicates the number of frees that should be delayed.
240	*/
241	#if defined(DOXYGEN_RUNNING)
242	# define MMHYPER_HEAP_FREE_DELAY 64
243	#endif
244
245	/** @def MMHYPER_HEAP_FREE_POISON
246	* If defined, it indicates that freed memory should be poisoned
247	* with the value it has.
248	*/
249	#if defined(VBOX_STRICT) \|\| defined(DOXYGEN_RUNNING)
250	# define MMHYPER_HEAP_FREE_POISON 0xcb
251	#endif
252
253	/** @def MMHYPER_HEAP_STRICT
254	* Enables a bunch of assertions in the heap code. */
255	#if defined(VBOX_STRICT) \|\| defined(DOXYGEN_RUNNING)
256	# define MMHYPER_HEAP_STRICT 1
257	# if 0 \|\| defined(DOXYGEN_RUNNING)
258	/** @def MMHYPER_HEAP_STRICT_FENCE
259	* Enables tail fence. */
260	# define MMHYPER_HEAP_STRICT_FENCE
261	/** @def MMHYPER_HEAP_STRICT_FENCE_SIZE
262	* The fence size in bytes. */
263	# define MMHYPER_HEAP_STRICT_FENCE_SIZE 256
264	/** @def MMHYPER_HEAP_STRICT_FENCE_U32
265	* The fence filler. */
266	# define MMHYPER_HEAP_STRICT_FENCE_U32 UINT32_C(0xdeadbeef)
267	# endif
268	#endif
269
270	/**
271	* Hypervisor heap statistics record.
272	* There is one global and one per allocation tag.
273	*/
274	typedef struct MMHYPERSTAT
275	{
276	/** Core avl node, key is the tag.
277	* @todo The type is wrong! Get your lazy a$$ over and create that offsetted uint32_t version we need here! */
278	AVLOGCPHYSNODECORE Core;
279	/** Aligning the 64-bit fields on a 64-bit line. */
280	uint32_t u32Padding0;
281	/** Indicator for whether these statistics are registered with STAM or not. */
282	bool fRegistered;
283	/** Number of allocation. */
284	uint64_t cAllocations;
285	/** Number of frees. */
286	uint64_t cFrees;
287	/** Failures. */
288	uint64_t cFailures;
289	/** Number of bytes allocated (sum). */
290	uint64_t cbAllocated;
291	/** Number of bytes freed (sum). */
292	uint64_t cbFreed;
293	/** Number of bytes currently allocated. */
294	uint32_t cbCurAllocated;
295	/** Max number of bytes allocated. */
296	uint32_t cbMaxAllocated;
297	} MMHYPERSTAT;
298	AssertCompileMemberAlignment(MMHYPERSTAT, cAllocations, 8);
299	/** Pointer to hypervisor heap statistics record. */
300	typedef MMHYPERSTAT *PMMHYPERSTAT;
301
302	/**
303	* Hypervisor heap chunk.
304	*/
305	typedef struct MMHYPERCHUNK
306	{
307	/** Previous block in the list of all blocks.
308	* This is relative to the start of the heap. */
309	uint32_t offNext;
310	/** Offset to the previous block relative to this one. */
311	int32_t offPrev;
312	/** The statistics record this allocation belongs to (self relative). */
313	int32_t offStat;
314	/** Offset to the heap block (self relative). */
315	int32_t offHeap;
316	} MMHYPERCHUNK;
317	/** Pointer to a hypervisor heap chunk. */
318	typedef MMHYPERCHUNK *PMMHYPERCHUNK;
319
320
321	/**
322	* Hypervisor heap chunk.
323	*/
324	typedef struct MMHYPERCHUNKFREE
325	{
326	/** Main list. */
327	MMHYPERCHUNK core;
328	/** Offset of the next chunk in the list of free nodes. */
329	uint32_t offNext;
330	/** Offset of the previous chunk in the list of free nodes. */
331	int32_t offPrev;
332	/** Size of the block. */
333	uint32_t cb;
334	} MMHYPERCHUNKFREE;
335	/** Pointer to a free hypervisor heap chunk. */
336	typedef MMHYPERCHUNKFREE *PMMHYPERCHUNKFREE;
337
338
339	/**
340	* The hypervisor heap.
341	*/
342	typedef struct MMHYPERHEAP
343	{
344	/** The typical magic (MMHYPERHEAP_MAGIC). */
345	uint32_t u32Magic;
346	/** The heap size. (This structure is not included!) */
347	uint32_t cbHeap;
348	/** Lock protecting the heap. */
349	PDMCRITSECT Lock;
350	/** The HC ring-3 address of the heap. */
351	R3PTRTYPE(uint8_t *) pbHeapR3;
352	/** The HC ring-3 address of the shared VM strcture. */
353	PVMR3 pVMR3;
354	/** The HC ring-0 address of the heap. */
355	R0PTRTYPE(uint8_t *) pbHeapR0;
356	/** The HC ring-0 address of the shared VM strcture. */
357	PVMR0 pVMR0;
358	/** The RC address of the heap. */
359	RCPTRTYPE(uint8_t *) pbHeapRC;
360	/** The RC address of the shared VM strcture. */
361	PVMRC pVMRC;
362	/** The amount of free memory in the heap. */
363	uint32_t cbFree;
364	/** Offset of the first free chunk in the heap.
365	* The offset is relative to the start of the heap. */
366	uint32_t offFreeHead;
367	/** Offset of the last free chunk in the heap.
368	* The offset is relative to the start of the heap. */
369	uint32_t offFreeTail;
370	/** Offset of the first page aligned block in the heap.
371	* The offset is equal to cbHeap initially. */
372	uint32_t offPageAligned;
373	/** Tree of hypervisor heap statistics. */
374	AVLOGCPHYSTREE HyperHeapStatTree;
375	#ifdef MMHYPER_HEAP_FREE_DELAY
376	/** Where to insert the next free. */
377	uint32_t iDelayedFree;
378	/** Array of delayed frees. Circular. Offsets relative to this structure. */
379	struct
380	{
381	/** The free caller address. */
382	RTUINTPTR uCaller;
383	/** The offset of the freed chunk. */
384	uint32_t offChunk;
385	} aDelayedFrees[MMHYPER_HEAP_FREE_DELAY];
386	#else
387	/** Padding the structure to a 64-bit aligned size. */
388	uint32_t u32Padding0;
389	#endif
390	/** The heap physical pages. */
391	R3PTRTYPE(PSUPPAGE) paPages;
392	#if HC_ARCH_BITS == 32
393	/** Padding the structure to a 64-bit aligned size. */
394	uint32_t u32Padding1;
395	#endif
396	} MMHYPERHEAP;
397	/** Pointer to the hypervisor heap. */
398	typedef MMHYPERHEAP *PMMHYPERHEAP;
399
400	/** Magic value for MMHYPERHEAP. (C. S. Lewis) */
401	#define MMHYPERHEAP_MAGIC UINT32_C(0x18981129)
402
403
404	/**
405	* Hypervisor heap minimum alignment (16 bytes).
406	*/
407	#define MMHYPER_HEAP_ALIGN_MIN 16
408
409	/**
410	* The aligned size of the the MMHYPERHEAP structure.
411	*/
412	#define MMYPERHEAP_HDR_SIZE RT_ALIGN_Z(sizeof(MMHYPERHEAP), MMHYPER_HEAP_ALIGN_MIN * 4)
413
414	/** @name Hypervisor heap chunk flags.
415	* The flags are put in the first bits of the MMHYPERCHUNK::offPrev member.
416	* These bits aren't used anyway because of the chunk minimal alignment (16 bytes).
417	* @{ */
418	/** The chunk is free. (The code ASSUMES this is 0!) */
419	#define MMHYPERCHUNK_FLAGS_FREE 0x0
420	/** The chunk is in use. */
421	#define MMHYPERCHUNK_FLAGS_USED 0x1
422	/** The type mask. */
423	#define MMHYPERCHUNK_FLAGS_TYPE_MASK 0x1
424	/** The flag mask */
425	#define MMHYPERCHUNK_FLAGS_MASK 0x1
426
427	/** Checks if the chunk is free. */
428	#define MMHYPERCHUNK_ISFREE(pChunk) ( (((pChunk)->offPrev) & MMHYPERCHUNK_FLAGS_TYPE_MASK) == MMHYPERCHUNK_FLAGS_FREE )
429	/** Checks if the chunk is used. */
430	#define MMHYPERCHUNK_ISUSED(pChunk) ( (((pChunk)->offPrev) & MMHYPERCHUNK_FLAGS_TYPE_MASK) == MMHYPERCHUNK_FLAGS_USED )
431	/** Toggles FREE/USED flag of a chunk. */
432	#define MMHYPERCHUNK_SET_TYPE(pChunk, type) do { (pChunk)->offPrev = ((pChunk)->offPrev & ~MMHYPERCHUNK_FLAGS_TYPE_MASK) \| ((type) & MMHYPERCHUNK_FLAGS_TYPE_MASK); } while (0)
433
434	/** Gets the prev offset without the flags. */
435	#define MMHYPERCHUNK_GET_OFFPREV(pChunk) ((int32_t)((pChunk)->offPrev & ~MMHYPERCHUNK_FLAGS_MASK))
436	/** Sets the prev offset without changing the flags. */
437	#define MMHYPERCHUNK_SET_OFFPREV(pChunk, off) do { (pChunk)->offPrev = (off) \| ((pChunk)->offPrev & MMHYPERCHUNK_FLAGS_MASK); } while (0)
438	#if 0
439	/** Clears one or more flags. */
440	#define MMHYPERCHUNK_FLAGS_OP_CLEAR(pChunk, fFlags) do { ((pChunk)->offPrev) &= ~((fFlags) & MMHYPERCHUNK_FLAGS_MASK); } while (0)
441	/** Sets one or more flags. */
442	#define MMHYPERCHUNK_FLAGS_OP_SET(pChunk, fFlags) do { ((pChunk)->offPrev) \|= ((fFlags) & MMHYPERCHUNK_FLAGS_MASK); } while (0)
443	/** Checks if one is set. */
444	#define MMHYPERCHUNK_FLAGS_OP_ISSET(pChunk, fFlag) (!!(((pChunk)->offPrev) & ((fFlag) & MMHYPERCHUNK_FLAGS_MASK)))
445	#endif
446	/** @} */
447
448	/** @} */
449
450
451	/** @name Page Pool Internals
452	* @{
453	*/
454
455	/**
456	* Page sub pool
457	*
458	* About the allocation of this structure. To keep the number of heap blocks,
459	* the number of heap calls, and fragmentation low we allocate all the data
460	* related to a MMPAGESUBPOOL node in one chunk. That means that after the
461	* bitmap (which is of variable size) comes the SUPPAGE records and then
462	* follows the lookup tree nodes. (The heap in question is the hyper heap.)
463	*/
464	typedef struct MMPAGESUBPOOL
465	{
466	/** Pointer to next sub pool. */
467	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
468	R3PTRTYPE(struct MMPAGESUBPOOL *) pNext;
469	#else
470	R3R0PTRTYPE(struct MMPAGESUBPOOL *) pNext;
471	#endif
472	/** Pointer to next sub pool in the free chain.
473	* This is NULL if we're not in the free chain or at the end of it. */
474	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
475	R3PTRTYPE(struct MMPAGESUBPOOL *) pNextFree;
476	#else
477	R3R0PTRTYPE(struct MMPAGESUBPOOL *) pNextFree;
478	#endif
479	/** Pointer to array of lock ranges.
480	* This is allocated together with the MMPAGESUBPOOL and thus needs no freeing.
481	* It follows immediately after the bitmap.
482	* The reserved field is a pointer to this structure.
483	*/
484	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
485	R3PTRTYPE(PSUPPAGE) paPhysPages;
486	#else
487	R3R0PTRTYPE(PSUPPAGE) paPhysPages;
488	#endif
489	/** Pointer to the first page. */
490	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
491	R3PTRTYPE(void *) pvPages;
492	#else
493	R3R0PTRTYPE(void *) pvPages;
494	#endif
495	/** Size of the subpool. */
496	uint32_t cPages;
497	/** Number of free pages. */
498	uint32_t cPagesFree;
499	/** The allocation bitmap.
500	* This may extend beyond the end of the defined array size.
501	*/
502	uint32_t auBitmap[1];
503	/* ... SUPPAGE aRanges[1]; */
504	} MMPAGESUBPOOL;
505	/** Pointer to page sub pool. */
506	typedef MMPAGESUBPOOL *PMMPAGESUBPOOL;
507
508	/**
509	* Page pool.
510	*/
511	typedef struct MMPAGEPOOL
512	{
513	/** List of subpools. */
514	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
515	R3PTRTYPE(PMMPAGESUBPOOL) pHead;
516	#else
517	R3R0PTRTYPE(PMMPAGESUBPOOL) pHead;
518	#endif
519	/** Head of subpools with free pages. */
520	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
521	R3PTRTYPE(PMMPAGESUBPOOL) pHeadFree;
522	#else
523	R3R0PTRTYPE(PMMPAGESUBPOOL) pHeadFree;
524	#endif
525	/** AVLPV tree for looking up HC virtual addresses.
526	* The tree contains MMLOOKUPVIRTPP records.
527	*/
528	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
529	R3PTRTYPE(PAVLPVNODECORE) pLookupVirt;
530	#else
531	R3R0PTRTYPE(PAVLPVNODECORE) pLookupVirt;
532	#endif
533	/** Tree for looking up HC physical addresses.
534	* The tree contains MMLOOKUPPHYSHC records.
535	*/
536	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
537	R3PTRTYPE(AVLHCPHYSTREE) pLookupPhys;
538	#else
539	R3R0PTRTYPE(AVLHCPHYSTREE) pLookupPhys;
540	#endif
541	/** Pointer to the VM this pool belongs. */
542	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
543	PVMR3 pVM;
544	#else
545	R3R0PTRTYPE(PVM) pVM;
546	#endif
547	/** Flag indicating the allocation method.
548	* Set: SUPR3LowAlloc().
549	* Clear: SUPR3PageAllocEx(). */
550	bool fLow;
551	/** Number of subpools. */
552	uint32_t cSubPools;
553	/** Number of pages in pool. */
554	uint32_t cPages;
555	#ifdef VBOX_WITH_STATISTICS
556	/** Number of free pages in pool. */
557	uint32_t cFreePages;
558	# if HC_ARCH_BITS == 32
559	/** Aligning the statistics on an 8 byte boundrary. */
560	uint32_t u32Alignment;
561	# endif
562	/** Number of alloc calls. */
563	STAMCOUNTER cAllocCalls;
564	/** Number of free calls. */
565	STAMCOUNTER cFreeCalls;
566	/** Number of to phys conversions. */
567	STAMCOUNTER cToPhysCalls;
568	/** Number of to virtual conversions. */
569	STAMCOUNTER cToVirtCalls;
570	/** Number of real errors. */
571	STAMCOUNTER cErrors;
572	#endif
573	} MMPAGEPOOL;
574	#ifndef IN_RC
575	AssertCompileMemberAlignment(MMPAGEPOOL, cSubPools, 4);
576	# ifdef VBOX_WITH_STATISTICS
577	AssertCompileMemberAlignment(MMPAGEPOOL, cAllocCalls, 8);
578	# endif
579	#endif
580	/** Pointer to page pool. */
581	typedef MMPAGEPOOL *PMMPAGEPOOL;
582
583	/**
584	* Lookup record for HC virtual memory in the page pool.
585	*/
586	typedef struct MMPPLOOKUPHCPTR
587	{
588	/** The key is virtual address. */
589	AVLPVNODECORE Core;
590	/** Pointer to subpool if lookup record for a pool. */
591	struct MMPAGESUBPOOL *pSubPool;
592	} MMPPLOOKUPHCPTR;
593	/** Pointer to virtual memory lookup record. */
594	typedef MMPPLOOKUPHCPTR *PMMPPLOOKUPHCPTR;
595
596	/**
597	* Lookup record for HC physical memory.
598	*/
599	typedef struct MMPPLOOKUPHCPHYS
600	{
601	/** The key is physical address. */
602	AVLHCPHYSNODECORE Core;
603	/** Pointer to SUPPAGE record for this physical address. */
604	PSUPPAGE pPhysPage;
605	} MMPPLOOKUPHCPHYS;
606	/** Pointer to physical memory lookup record. */
607	typedef MMPPLOOKUPHCPHYS *PMMPPLOOKUPHCPHYS;
608
609	/** @} */
610
611
612	/**
613	* Hypervisor memory mapping type.
614	*/
615	typedef enum MMLOOKUPHYPERTYPE
616	{
617	/** Invalid record. This is used for record which are incomplete. */
618	MMLOOKUPHYPERTYPE_INVALID = 0,
619	/** Mapping of locked memory. */
620	MMLOOKUPHYPERTYPE_LOCKED,
621	/** Mapping of contiguous HC physical memory. */
622	MMLOOKUPHYPERTYPE_HCPHYS,
623	/** Mapping of contiguous GC physical memory. */
624	MMLOOKUPHYPERTYPE_GCPHYS,
625	/** Mapping of MMIO2 memory. */
626	MMLOOKUPHYPERTYPE_MMIO2,
627	/** Dynamic mapping area (MMR3HyperReserve).
628	* A conversion will require to check what's in the page table for the pages. */
629	MMLOOKUPHYPERTYPE_DYNAMIC
630	} MMLOOKUPHYPERTYPE;
631
632	/**
633	* Lookup record for the hypervisor memory area.
634	*/
635	typedef struct MMLOOKUPHYPER
636	{
637	/** Byte offset from the start of this record to the next.
638	* If the value is NIL_OFFSET the chain is terminated. */
639	int32_t offNext;
640	/** Offset into the hypvervisor memory area. */
641	uint32_t off;
642	/** Size of this part. */
643	uint32_t cb;
644	/** Locking type. */
645	MMLOOKUPHYPERTYPE enmType;
646	/** Type specific data */
647	union
648	{
649	/** Locked memory. */
650	struct
651	{
652	/** Host context ring-3 pointer. */
653	R3PTRTYPE(void *) pvR3;
654	/** Host context ring-0 pointer. Optional. */
655	RTR0PTR pvR0;
656	/** Pointer to an array containing the physical address of each page. */
657	R3PTRTYPE(PRTHCPHYS) paHCPhysPages;
658	} Locked;
659
660	/** Contiguous physical memory. */
661	struct
662	{
663	/** Host context ring-3 pointer. */
664	R3PTRTYPE(void *) pvR3;
665	/** Host context ring-0 pointer. Optional. */
666	RTR0PTR pvR0;
667	/** HC physical address corresponding to pvR3/pvR0. */
668	RTHCPHYS HCPhys;
669	} HCPhys;
670
671	/** Contiguous guest physical memory. */
672	struct
673	{
674	/** The memory address (Guest Context). */
675	RTGCPHYS GCPhys;
676	} GCPhys;
677
678	/** MMIO2 memory. */
679	struct
680	{
681	/** The device instance owning the MMIO2 region. */
682	PPDMDEVINSR3 pDevIns;
683	/** The region number. */
684	uint32_t iRegion;
685	/** The offset into the MMIO2 region. */
686	RTGCPHYS off;
687	} MMIO2;
688	} u;
689	/** Description. */
690	R3PTRTYPE(const char *) pszDesc;
691	} MMLOOKUPHYPER;
692	/** Pointer to a hypervisor memory lookup record. */
693	typedef MMLOOKUPHYPER *PMMLOOKUPHYPER;
694
695
696	/**
697	* Converts a MM pointer into a VM pointer.
698	* @returns Pointer to the VM structure the MM is part of.
699	* @param pMM Pointer to MM instance data.
700	*/
701	#define MM2VM(pMM) ( (PVM)((uint8_t *)pMM - pMM->offVM) )
702
703
704	/**
705	* MM Data (part of VM)
706	*/
707	typedef struct MM
708	{
709	/** Offset to the VM structure.
710	* See MM2VM(). */
711	RTINT offVM;
712
713	/** Set if MMR3InitPaging has been called. */
714	bool fDoneMMR3InitPaging;
715	/** Set if PGM has been initialized and we can safely call PGMR3Map(). */
716	bool fPGMInitialized;
717	#if GC_ARCH_BITS == 64 \|\| HC_ARCH_BITS == 64
718	uint32_t u32Padding1; /*< alignment padding. /
719	#endif
720
721	/** Lookup list for the Hypervisor Memory Area.
722	* The offset is relative to the start of the heap.
723	* Use pHyperHeapR3, pHyperHeapR0 or pHypeRHeapRC to calculate the address.
724	*/
725	RTUINT offLookupHyper;
726
727	/** The offset of the next static mapping in the Hypervisor Memory Area. */
728	RTUINT offHyperNextStatic;
729	/** The size of the HMA.
730	* Starts at 12MB and will be fixed late in the init process. */
731	RTUINT cbHyperArea;
732
733	/** Guest address of the Hypervisor Memory Area.
734	* @remarks It's still a bit open whether this should be change to RTRCPTR or
735	* remain a RTGCPTR. */
736	RTGCPTR pvHyperAreaGC;
737
738	/** The hypervisor heap (GC Ptr). */
739	RCPTRTYPE(PMMHYPERHEAP) pHyperHeapRC;
740	#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 64
741	uint32_t u32Padding2;
742	#endif
743
744	/** The hypervisor heap (R0 Ptr). */
745	R0PTRTYPE(PMMHYPERHEAP) pHyperHeapR0;
746	#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
747	/** Page pool - R0 Ptr. */
748	R0PTRTYPE(PMMPAGEPOOL) pPagePoolR0;
749	/** Page pool pages in low memory R0 Ptr. */
750	R0PTRTYPE(PMMPAGEPOOL) pPagePoolLowR0;
751	#endif /* !VBOX_WITH_2X_4GB_ADDR_SPACE */
752
753	/** The hypervisor heap (R3 Ptr). */
754	R3PTRTYPE(PMMHYPERHEAP) pHyperHeapR3;
755	/** Page pool - R3 Ptr. */
756	R3PTRTYPE(PMMPAGEPOOL) pPagePoolR3;
757	/** Page pool pages in low memory R3 Ptr. */
758	R3PTRTYPE(PMMPAGEPOOL) pPagePoolLowR3;
759
760	/** Pointer to the dummy page.
761	* The dummy page is a paranoia thingy used for instance for pure MMIO RAM ranges
762	* to make sure any bugs will not harm whatever the system stores in the first
763	* physical page. */
764	R3PTRTYPE(void *) pvDummyPage;
765	/** Physical address of the dummy page. */
766	RTHCPHYS HCPhysDummyPage;
767
768	/** Size of the base RAM in bytes. (The CFGM RamSize value.) */
769	uint64_t cbRamBase;
770	/** The number of base RAM pages that PGM has reserved (GMM).
771	* @remarks Shadow ROMs will be counted twice (RAM+ROM), so it won't be 1:1 with
772	* what the guest sees. */
773	uint64_t cBasePages;
774	/** The number of handy pages that PGM has reserved (GMM).
775	* These are kept out of cBasePages and thus out of the saved state. */
776	uint32_t cHandyPages;
777	/** The number of shadow pages PGM has reserved (GMM). */
778	uint32_t cShadowPages;
779	/** The number of fixed pages we've reserved (GMM). */
780	uint32_t cFixedPages;
781	/** Padding. */
782	uint32_t u32Padding0;
783	} MM;
784	/** Pointer to MM Data (part of VM). */
785	typedef MM *PMM;
786
787
788	/**
789	* MM data kept in the UVM.
790	*/
791	typedef struct MMUSERPERVM
792	{
793	/** Pointer to the MM R3 Heap. */
794	R3PTRTYPE(PMMHEAP) pHeap;
795	/** Pointer to the MM Uk Heap. */
796	R3PTRTYPE(PMMUKHEAP) pUkHeap;
797	} MMUSERPERVM;
798	/** Pointer to the MM data kept in the UVM. */
799	typedef MMUSERPERVM *PMMUSERPERVM;
800
801
802	RT_C_DECLS_BEGIN
803
804
805	int mmR3UpdateReservation(PVM pVM);
806
807	int mmR3PagePoolInit(PVM pVM);
808	void mmR3PagePoolTerm(PVM pVM);
809
810	int mmR3HeapCreateU(PUVM pUVM, PMMHEAP *ppHeap);
811	void mmR3HeapDestroy(PMMHEAP pHeap);
812
813	void mmR3UkHeapDestroy(PMMUKHEAP pHeap);
814	int mmR3UkHeapCreateU(PUVM pUVM, PMMUKHEAP *ppHeap);
815
816
817	int mmR3HyperInit(PVM pVM);
818	int mmR3HyperTerm(PVM pVM);
819	int mmR3HyperInitPaging(PVM pVM);
820
821	const char *mmGetTagName(MMTAG enmTag);
822
823	/**
824	* Converts a pool address to a physical address.
825	* The specified allocation type must match with the address.
826	*
827	* @returns Physical address.
828	* @returns NIL_RTHCPHYS if not found or eType is not matching.
829	* @param pPool Pointer to the page pool.
830	* @param pv The address to convert.
831	* @thread The Emulation Thread.
832	*/
833	RTHCPHYS mmPagePoolPtr2Phys(PMMPAGEPOOL pPool, void *pv);
834
835	/**
836	* Converts a pool physical address to a linear address.
837	* The specified allocation type must match with the address.
838	*
839	* @returns Physical address.
840	* @returns NULL if not found or eType is not matching.
841	* @param pPool Pointer to the page pool.
842	* @param HCPhys The address to convert.
843	* @thread The Emulation Thread.
844	*/
845	void *mmPagePoolPhys2Ptr(PMMPAGEPOOL pPool, RTHCPHYS HCPhys);
846
847	RT_C_DECLS_END
848
849	/** @} */
850
851	#endif
852

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source: vbox/trunk/src/VBox/VMM/MMInternal.h@ 26944

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