MMHeap.cpp@ 5605

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1	/* $Id: MMHeap.cpp 5525 2007-10-26 18:03:37Z vboxsync $ */
2	/** @file
3	* MM - Memory Monitor(/Manager) - Heap.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 innotek GmbH
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 as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#define LOG_GROUP LOG_GROUP_MM_HEAP
23	#include <VBox/mm.h>
24	#include <VBox/pgm.h>
25	#include "MMInternal.h"
26	#include <VBox/vm.h>
27	#include <VBox/err.h>
28	#include <VBox/param.h>
29	#include <VBox/log.h>
30
31	#include <iprt/alloc.h>
32	#include <iprt/assert.h>
33	#include <iprt/string.h>
34
35
36	/*******************************************************************************
37	* Internal Functions *
38	*******************************************************************************/
39	static void * mmr3HeapAlloc(PMMHEAP pHeap, MMTAG enmTag, size_t cbSize, bool fZero);
40
41
42
43	/**
44	* Allocate and initialize a heap structure and it's associated substructures.
45	*
46	* @returns VBox status.
47	* @param pVM The handle to the VM the heap should be associated with.
48	* @param ppHeap Where to store the heap pointer.
49	*/
50	int mmr3HeapCreate(PVM pVM, PMMHEAP *ppHeap)
51	{
52	PMMHEAP pHeap = (PMMHEAP)RTMemAllocZ(sizeof(MMHEAP) + sizeof(MMHEAPSTAT));
53	if (pHeap)
54	{
55	int rc = RTCritSectInit(&pHeap->Lock);
56	if (VBOX_SUCCESS(rc))
57	{
58	/*
59	* Initialize the global stat record.
60	*/
61	pHeap->pVM = pVM;
62
63	pHeap->Stat.pHeap = pHeap;
64	#ifdef MMR3HEAP_WITH_STATISTICS
65	PMMHEAPSTAT pStat = &pHeap->Stat;
66	STAMR3Register(pVM, &pStat->cAllocations, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cAllocations", STAMUNIT_CALLS, "Number or MMR3HeapAlloc() calls.");
67	STAMR3Register(pVM, &pStat->cReallocations, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cReallocations", STAMUNIT_CALLS, "Number of MMR3HeapRealloc() calls.");
68	STAMR3Register(pVM, &pStat->cFrees, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cFrees", STAMUNIT_CALLS, "Number of MMR3HeapFree() calls.");
69	STAMR3Register(pVM, &pStat->cFailures, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cFailures", STAMUNIT_COUNT, "Number of failures.");
70	STAMR3Register(pVM, &pStat->cbCurAllocated, sizeof(pStat->cbCurAllocated) == sizeof(uint32_t) ? STAMTYPE_U32 : STAMTYPE_U64,
71	STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cbCurAllocated", STAMUNIT_BYTES, "Number of bytes currently allocated.");
72	STAMR3Register(pVM, &pStat->cbAllocated, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cbAllocated", STAMUNIT_BYTES, "Total number of bytes allocated.");
73	STAMR3Register(pVM, &pStat->cbFreed, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, "/MM/R3Heap/cbFreed", STAMUNIT_BYTES, "Total number of bytes freed.");
74	#endif
75	*ppHeap = pHeap;
76	return VINF_SUCCESS;
77	}
78	AssertRC(rc);
79	RTMemFree(pHeap);
80	}
81	AssertMsgFailed(("failed to allocate heap structure\n"));
82	return VERR_NO_MEMORY;
83	}
84
85
86	/**
87	* Destroy a heap.
88	*
89	* @param pHeap Heap handle.
90	*/
91	void mmr3HeapDestroy(PMMHEAP pHeap)
92	{
93	/*
94	* Start by deleting the lock, that'll trap anyone
95	* attempting to use the heap.
96	*/
97	RTCritSectDelete(&pHeap->Lock);
98
99	/*
100	* Walk the node list and free all the memory.
101	*/
102	PMMHEAPHDR pHdr = pHeap->pHead;
103	while (pHdr)
104	{
105	void *pv = pHdr;
106	pHdr = pHdr->pNext;
107	RTMemFree(pv);
108	}
109
110	/*
111	* Free the stat nodes.
112	*/
113	/** @todo free all nodes in a AVL tree. */
114	RTMemFree(pHeap);
115	}
116
117
118	/**
119	* Allocate memory associating it with the VM for collective cleanup.
120	*
121	* The memory will be allocated from the default heap but a header
122	* is added in which we keep track of which VM it belongs to and chain
123	* all the allocations together so they can be freed in a one go.
124	*
125	* This interface is typically used for memory block which will not be
126	* freed during the life of the VM.
127	*
128	* @returns Pointer to allocated memory.
129	* @param pVM VM handle.
130	* @param enmTag Statistics tag. Statistics are collected on a per tag
131	* basis in addition to a global one. Thus we can easily
132	* identify how memory is used by the VM.
133	* @param cbSize Size of the block.
134	*/
135	MMR3DECL(void *) MMR3HeapAlloc(PVM pVM, MMTAG enmTag, size_t cbSize)
136	{
137	if (!pVM->mm.s.pHeap)
138	{
139	int rc = mmr3HeapCreate(pVM, &pVM->mm.s.pHeap);
140	if (VBOX_FAILURE(rc))
141	return NULL;
142	}
143	return mmr3HeapAlloc(pVM->mm.s.pHeap, enmTag, cbSize, false);
144	}
145
146
147	/**
148	* Same as MMR3HeapAlloc().
149	*
150	*
151	* @returns Pointer to allocated memory.
152	* @param pVM VM handle.
153	* @param enmTag Statistics tag. Statistics are collected on a per tag
154	* basis in addition to a global one. Thus we can easily
155	* identify how memory is used by the VM.
156	* @param cbSize Size of the block.
157	* @param ppv Where to store the pointer to the allocated memory on success.
158	*/
159	MMR3DECL(int) MMR3HeapAllocEx(PVM pVM, MMTAG enmTag, size_t cbSize, void **ppv)
160	{
161	if (!pVM->mm.s.pHeap)
162	{
163	int rc = mmr3HeapCreate(pVM, &pVM->mm.s.pHeap);
164	if (VBOX_FAILURE(rc))
165	return rc;
166	}
167	void *pv = mmr3HeapAlloc(pVM->mm.s.pHeap, enmTag, cbSize, false);
168	if (pv)
169	{
170	*ppv = pv;
171	return VINF_SUCCESS;
172	}
173	return VERR_NO_MEMORY;
174	}
175
176
177	/**
178	* Same as MMR3HeapAlloc() only the memory is zeroed.
179	*
180	*
181	* @returns Pointer to allocated memory.
182	* @param pVM VM handle.
183	* @param enmTag Statistics tag. Statistics are collected on a per tag
184	* basis in addition to a global one. Thus we can easily
185	* identify how memory is used by the VM.
186	* @param cbSize Size of the block.
187	*/
188	MMR3DECL(void *) MMR3HeapAllocZ(PVM pVM, MMTAG enmTag, size_t cbSize)
189	{
190	if (!pVM->mm.s.pHeap)
191	{
192	int rc = mmr3HeapCreate(pVM, &pVM->mm.s.pHeap);
193	if (VBOX_FAILURE(rc))
194	return NULL;
195	}
196	return mmr3HeapAlloc(pVM->mm.s.pHeap, enmTag, cbSize, true);
197	}
198
199
200	/**
201	* Same as MMR3HeapAllocZ().
202	*
203	*
204	* @returns Pointer to allocated memory.
205	* @param pVM VM handle.
206	* @param enmTag Statistics tag. Statistics are collected on a per tag
207	* basis in addition to a global one. Thus we can easily
208	* identify how memory is used by the VM.
209	* @param cbSize Size of the block.
210	* @param ppv Where to store the pointer to the allocated memory on success.
211	*/
212	MMR3DECL(int) MMR3HeapAllocZEx(PVM pVM, MMTAG enmTag, size_t cbSize, void **ppv)
213	{
214	if (!pVM->mm.s.pHeap)
215	{
216	int rc = mmr3HeapCreate(pVM, &pVM->mm.s.pHeap);
217	if (VBOX_FAILURE(rc))
218	return rc;
219	}
220	void *pv = mmr3HeapAlloc(pVM->mm.s.pHeap, enmTag, cbSize, true);
221	if (pv)
222	{
223	*ppv = pv;
224	return VINF_SUCCESS;
225	}
226	return VERR_NO_MEMORY;
227	}
228
229
230	/**
231	* Allocate memory from the heap.
232	*
233	* @returns Pointer to allocated memory.
234	* @param pHeap Heap handle.
235	* @param enmTag Statistics tag. Statistics are collected on a per tag
236	* basis in addition to a global one. Thus we can easily
237	* identify how memory is used by the VM.
238	* @param cbSize Size of the block.
239	* @param fZero Whether or not to zero the memory block.
240	*/
241	void * mmr3HeapAlloc(PMMHEAP pHeap, MMTAG enmTag, size_t cbSize, bool fZero)
242	{
243	#ifdef MMR3HEAP_WITH_STATISTICS
244	RTCritSectEnter(&pHeap->Lock);
245
246	/*
247	* Find/alloc statistics nodes.
248	*/
249	pHeap->Stat.cAllocations++;
250	PMMHEAPSTAT pStat = (PMMHEAPSTAT)RTAvlULGet(&pHeap->pStatTree, (AVLULKEY)enmTag);
251	if (pStat)
252	{
253	pStat->cAllocations++;
254
255	RTCritSectLeave(&pHeap->Lock);
256	}
257	else
258	{
259	pStat = (PMMHEAPSTAT)RTMemAllocZ(sizeof(MMHEAPSTAT));
260	if (!pStat)
261	{
262	pHeap->Stat.cFailures++;
263	AssertMsgFailed(("Failed to allocate heap stat record.\n"));
264	RTCritSectLeave(&pHeap->Lock);
265	return NULL;
266	}
267	pStat->Core.Key = (AVLULKEY)enmTag;
268	pStat->pHeap = pHeap;
269	RTAvlULInsert(&pHeap->pStatTree, &pStat->Core);
270
271	pStat->cAllocations++;
272	RTCritSectLeave(&pHeap->Lock);
273
274	/* register the statistics */
275	PVM pVM = pHeap->pVM;
276	char szName[80];
277	const char *pszTag = mmR3GetTagName(enmTag);
278	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cAllocations", pszTag);
279	STAMR3Register(pVM, &pStat->cAllocations, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_CALLS, "Number or MMR3HeapAlloc() calls.");
280
281	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cReallocations", pszTag);
282	STAMR3Register(pVM, &pStat->cReallocations, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_CALLS, "Number of MMR3HeapRealloc() calls.");
283
284	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cFrees", pszTag);
285	STAMR3Register(pVM, &pStat->cFrees, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_CALLS, "Number of MMR3HeapFree() calls.");
286
287	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cFailures", pszTag);
288	STAMR3Register(pVM, &pStat->cFailures, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_COUNT, "Number of failures.");
289
290	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cbCurAllocated", pszTag);
291	STAMR3Register(pVM, &pStat->cbCurAllocated, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_BYTES, "Number of bytes currently allocated.");
292
293	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cbAllocated", pszTag);
294	STAMR3Register(pVM, &pStat->cbAllocated, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_BYTES, "Total number of bytes allocated.");
295
296	RTStrPrintf(szName, sizeof(szName), "/MM/R3Heap/%s/cbFreed", pszTag);
297	STAMR3Register(pVM, &pStat->cbFreed, STAMTYPE_U64, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_BYTES, "Total number of bytes freed.");
298	}
299	#endif
300
301	/*
302	* Validate input.
303	*/
304	if (cbSize == 0)
305	{
306	#ifdef MMR3HEAP_WITH_STATISTICS
307	RTCritSectEnter(&pHeap->Lock);
308	pStat->cFailures++;
309	pHeap->Stat.cFailures++;
310	RTCritSectLeave(&pHeap->Lock);
311	#endif
312	return NULL;
313	}
314
315	/*
316	* Allocate heap block.
317	*/
318	cbSize = RT_ALIGN_Z(cbSize, MMR3HEAP_SIZE_ALIGNMENT) + sizeof(MMHEAPHDR);
319	PMMHEAPHDR pHdr = (PMMHEAPHDR)(fZero ? RTMemAllocZ(cbSize) : RTMemAlloc(cbSize));
320	if (!pHdr)
321	{
322	AssertMsgFailed(("Failed to allocate heap block %d, enmTag=%x(%.4s).\n", cbSize, enmTag, &enmTag));
323	#ifdef MMR3HEAP_WITH_STATISTICS
324	RTCritSectEnter(&pHeap->Lock);
325	pStat->cFailures++;
326	pHeap->Stat.cFailures++;
327	RTCritSectLeave(&pHeap->Lock);
328	#endif
329	return NULL;
330	}
331	Assert(!((uintptr_t)pHdr & (RTMEM_ALIGNMENT - 1)));
332
333	RTCritSectEnter(&pHeap->Lock);
334
335	/*
336	* Init and link in the header.
337	*/
338	pHdr->pNext = NULL;
339	pHdr->pPrev = pHeap->pTail;
340	if (pHdr->pPrev)
341	pHdr->pPrev->pNext = pHdr;
342	else
343	pHeap->pHead = pHdr;
344	pHeap->pTail = pHdr;
345	#ifdef MMR3HEAP_WITH_STATISTICS
346	pHdr->pStat = pStat;
347	#else
348	pHdr->pStat = &pHeap->Stat;
349	#endif
350	pHdr->cbSize = cbSize;
351
352	/*
353	* Update statistics
354	*/
355	#ifdef MMR3HEAP_WITH_STATISTICS
356	pStat->cbAllocated += cbSize;
357	pStat->cbCurAllocated += cbSize;
358	pHeap->Stat.cbAllocated += cbSize;
359	pHeap->Stat.cbCurAllocated += cbSize;
360	#endif
361
362	RTCritSectLeave(&pHeap->Lock);
363
364	return pHdr + 1;
365	}
366
367
368	/**
369	* Reallocate memory allocated with MMR3HeapAlloc() or MMR3HeapRealloc().
370	*
371	* @returns Pointer to reallocated memory.
372	* @param pv Pointer to the memory block to reallocate.
373	* Must not be NULL!
374	* @param cbNewSize New block size.
375	*/
376	MMR3DECL(void ) MMR3HeapRealloc(void pv, size_t cbNewSize)
377	{
378	AssertMsg(pv, ("Invalid pointer pv=%p\n", pv));
379	if (!pv)
380	return NULL;
381
382	/*
383	* If newsize is zero then this is a free.
384	*/
385	if (!cbNewSize)
386	{
387	MMR3HeapFree(pv);
388	return NULL;
389	}
390
391	/*
392	* Validate header.
393	*/
394	PMMHEAPHDR pHdr = (PMMHEAPHDR)pv - 1;
395	if ( pHdr->cbSize & (MMR3HEAP_SIZE_ALIGNMENT - 1)
396	\|\| (uintptr_t)pHdr & (RTMEM_ALIGNMENT - 1))
397	{
398	AssertMsgFailed(("Invalid heap header! pv=%p, size=%#x\n", pv, pHdr->cbSize));
399	return NULL;
400	}
401	Assert(pHdr->pStat != NULL);
402	Assert(!((uintptr_t)pHdr->pNext & (RTMEM_ALIGNMENT - 1)));
403	Assert(!((uintptr_t)pHdr->pPrev & (RTMEM_ALIGNMENT - 1)));
404
405	PMMHEAP pHeap = pHdr->pStat->pHeap;
406
407	#ifdef MMR3HEAP_WITH_STATISTICS
408	RTCritSectEnter(&pHeap->Lock);
409	pHdr->pStat->cReallocations++;
410	pHeap->Stat.cReallocations++;
411	RTCritSectLeave(&pHeap->Lock);
412	#endif
413
414	/*
415	* Rellocate the block.
416	*/
417	cbNewSize = RT_ALIGN_Z(cbNewSize, MMR3HEAP_SIZE_ALIGNMENT) + sizeof(MMHEAPHDR);
418	PMMHEAPHDR pHdrNew = (PMMHEAPHDR)RTMemRealloc(pHdr, cbNewSize);
419	if (!pHdrNew)
420	{
421	#ifdef MMR3HEAP_WITH_STATISTICS
422	RTCritSectEnter(&pHeap->Lock);
423	pHdr->pStat->cFailures++;
424	pHeap->Stat.cFailures++;
425	RTCritSectLeave(&pHeap->Lock);
426	#endif
427	return NULL;
428	}
429
430	/*
431	* Update pointers.
432	*/
433	if (pHdrNew != pHdr)
434	{
435	RTCritSectEnter(&pHeap->Lock);
436	if (pHdrNew->pPrev)
437	pHdrNew->pPrev->pNext = pHdrNew;
438	else
439	pHeap->pHead = pHdrNew;
440
441	if (pHdrNew->pNext)
442	pHdrNew->pNext->pPrev = pHdrNew;
443	else
444	pHeap->pTail = pHdrNew;
445	RTCritSectLeave(&pHeap->Lock);
446	}
447
448	/*
449	* Update statistics.
450	*/
451	#ifdef MMR3HEAP_WITH_STATISTICS
452	RTCritSectEnter(&pHeap->Lock);
453	pHdrNew->pStat->cbAllocated += cbNewSize - pHdrNew->cbSize;
454	pHeap->Stat.cbAllocated += cbNewSize - pHdrNew->cbSize;
455	RTCritSectLeave(&pHeap->Lock);
456	#endif
457
458	pHdrNew->cbSize = cbNewSize;
459
460	return pHdrNew + 1;
461	}
462
463
464	/**
465	* Duplicates the specified string.
466	*
467	* @returns Pointer to the duplicate.
468	* @returns NULL on failure or when input NULL.
469	* @param pVM The VM handle.
470	* @param enmTag Statistics tag. Statistics are collected on a per tag
471	* basis in addition to a global one. Thus we can easily
472	* identify how memory is used by the VM.
473	* @param psz The string to duplicate. NULL is allowed.
474	*/
475	MMR3DECL(char ) MMR3HeapStrDup(PVM pVM, MMTAG enmTag, const char psz)
476	{
477	if (!psz)
478	return NULL;
479	Assert(VALID_PTR(psz));
480	size_t cch = strlen(psz) + 1;
481	char pszDup = (char )MMR3HeapAlloc(pVM, enmTag, cch);
482	if (pszDup)
483	memcpy(pszDup, psz, cch);
484	return pszDup;
485	}
486
487
488	/**
489	* Releases memory allocated with MMR3HeapAlloc() or MMR3HeapRealloc().
490	*
491	* @param pv Pointer to the memory block to free.
492	*/
493	MMR3DECL(void) MMR3HeapFree(void *pv)
494	{
495	/* Ignore NULL pointers. */
496	if (!pv)
497	return;
498
499	/*
500	* Validate header.
501	*/
502	PMMHEAPHDR pHdr = (PMMHEAPHDR)pv - 1;
503	if ( pHdr->cbSize & (MMR3HEAP_SIZE_ALIGNMENT - 1)
504	\|\| (uintptr_t)pHdr & (RTMEM_ALIGNMENT - 1))
505	{
506	AssertMsgFailed(("Invalid heap header! pv=%p, size=%#x\n", pv, pHdr->cbSize));
507	return;
508	}
509	Assert(pHdr->pStat != NULL);
510	Assert(!((uintptr_t)pHdr->pNext & (RTMEM_ALIGNMENT - 1)));
511	Assert(!((uintptr_t)pHdr->pPrev & (RTMEM_ALIGNMENT - 1)));
512
513	/*
514	* Update statistics
515	*/
516	PMMHEAP pHeap = pHdr->pStat->pHeap;
517	RTCritSectEnter(&pHeap->Lock);
518
519	#ifdef MMR3HEAP_WITH_STATISTICS
520	pHdr->pStat->cFrees++;
521	pHeap->Stat.cFrees++;
522	pHdr->pStat->cbFreed += pHdr->cbSize;
523	pHeap->Stat.cbFreed += pHdr->cbSize;
524	pHdr->pStat->cbCurAllocated -= pHdr->cbSize;
525	pHeap->Stat.cbCurAllocated -= pHdr->cbSize;
526	#endif
527
528	/*
529	* Unlink it.
530	*/
531	if (pHdr->pPrev)
532	pHdr->pPrev->pNext = pHdr->pNext;
533	else
534	pHeap->pHead = pHdr->pNext;
535
536	if (pHdr->pNext)
537	pHdr->pNext->pPrev = pHdr->pPrev;
538	else
539	pHeap->pTail = pHdr->pPrev;
540
541	RTCritSectLeave(&pHeap->Lock);
542
543	/*
544	* Free the memory.
545	*/
546	RTMemFree(pHdr);
547	}
548
549
550	/**
551	* Gets the string name of a memory tag.
552	*
553	* @returns name of enmTag.
554	* @param enmTag The tag.
555	*/
556	const char *mmR3GetTagName(MMTAG enmTag)
557	{
558	switch (enmTag)
559	{
560	#define TAG2STR(tag) case MM_TAG_##tag: return #tag
561
562	TAG2STR(CFGM);
563	TAG2STR(CFGM_BYTES);
564	TAG2STR(CFGM_STRING);
565	TAG2STR(CFGM_USER);
566
567	TAG2STR(CSAM);
568	TAG2STR(CSAM_PATCH);
569
570	TAG2STR(DBGF);
571	TAG2STR(DBGF_INFO);
572	TAG2STR(DBGF_LINE);
573	TAG2STR(DBGF_LINE_DUP);
574	TAG2STR(DBGF_STACK);
575	TAG2STR(DBGF_SYMBOL);
576	TAG2STR(DBGF_SYMBOL_DUP);
577	TAG2STR(DBGF_MODULE);
578
579	TAG2STR(EM);
580
581	TAG2STR(IOM);
582	TAG2STR(IOM_STATS);
583
584	TAG2STR(MM);
585	TAG2STR(MM_LOOKUP_GUEST);
586	TAG2STR(MM_LOOKUP_PHYS);
587	TAG2STR(MM_LOOKUP_VIRT);
588	TAG2STR(MM_PAGE);
589
590	TAG2STR(PATM);
591	TAG2STR(PATM_PATCH);
592
593	TAG2STR(PDM);
594	TAG2STR(PDM_DEVICE);
595	TAG2STR(PDM_DEVICE_USER);
596	TAG2STR(PDM_DRIVER);
597	TAG2STR(PDM_DRIVER_USER);
598	TAG2STR(PDM_USB);
599	TAG2STR(PDM_USB_USER);
600	TAG2STR(PDM_LUN);
601	TAG2STR(PDM_QUEUE);
602	TAG2STR(PDM_THREAD);
603
604	TAG2STR(PGM);
605	TAG2STR(PGM_CHUNK_MAPPING);
606	TAG2STR(PGM_HANDLERS);
607	TAG2STR(PGM_POOL);
608
609	TAG2STR(REM);
610
611	TAG2STR(SELM);
612
613	TAG2STR(SSM);
614
615	TAG2STR(STAM);
616
617	TAG2STR(TM);
618
619	TAG2STR(TRPM);
620
621	TAG2STR(VM);
622	TAG2STR(VM_REQ);
623
624	TAG2STR(VMM);
625
626	TAG2STR(HWACCM);
627
628	#undef TAG2STR
629
630	default:
631	{
632	AssertMsgFailed(("Unknown tag %d! forgot to add it to the switch?\n", enmTag));
633	static char sz[48];
634	RTStrPrintf(sz, sizeof(sz), "%d", enmTag);
635	return sz;
636	}
637	}
638	}
639

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source: vbox/trunk/src/VBox/VMM/MMHeap.cpp@ 5605

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