MMHyper.cpp@ 8155

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1	/* $Id: MMHyper.cpp 8155 2008-04-18 15:16:47Z vboxsync $ */
2	/** @file
3	* MM - Memory Monitor(/Manager) - Hypervisor Memory Area.
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
23
24
25	/*******************************************************************************
26	* Header Files *
27	*******************************************************************************/
28	#define LOG_GROUP LOG_GROUP_MM_HYPER
29	#include <VBox/pgm.h>
30	#include <VBox/mm.h>
31	#include <VBox/dbgf.h>
32	#include "MMInternal.h"
33	#include <VBox/vm.h>
34	#include <VBox/err.h>
35	#include <VBox/param.h>
36	#include <VBox/log.h>
37	#include <iprt/alloc.h>
38	#include <iprt/assert.h>
39	#include <iprt/string.h>
40
41
42	/*******************************************************************************
43	* Internal Functions *
44	*******************************************************************************/
45	static DECLCALLBACK(bool) mmR3HyperRelocateCallback(PVM pVM, RTGCPTR GCPtrOld, RTGCPTR GCPtrNew, PGMRELOCATECALL enmMode, void *pvUser);
46	static int mmR3HyperMap(PVM pVM, const size_t cb, const char pszDesc, PRTGCPTR pGCPtr, PMMLOOKUPHYPER ppLookup);
47	static int mmR3HyperHeapCreate(PVM pVM, const size_t cb, PMMHYPERHEAP *ppHeap);
48	static int mmR3HyperHeapMap(PVM pVM, PMMHYPERHEAP pHeap, PRTGCPTR ppHeapGC);
49	static DECLCALLBACK(void) mmR3HyperInfoHma(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
50
51
52	/**
53	* Initializes the hypvervisor related MM stuff without
54	* calling down to PGM.
55	*
56	* PGM is not initialized at this point, PGM relies on
57	* the heap to initialize.
58	*
59	* @returns VBox status.
60	*/
61	int mmR3HyperInit(PVM pVM)
62	{
63	LogFlow(("mmR3HyperInit:\n"));
64
65	/*
66	* Decide Hypervisor mapping in the guest context
67	* And setup various hypervisor area and heap parameters.
68	*/
69	pVM->mm.s.pvHyperAreaGC = (RTGCPTR)MM_HYPER_AREA_ADDRESS;
70	pVM->mm.s.cbHyperArea = MM_HYPER_AREA_MAX_SIZE;
71	AssertRelease(RT_ALIGN_T(pVM->mm.s.pvHyperAreaGC, 1 << X86_PD_SHIFT, RTGCPTR) == pVM->mm.s.pvHyperAreaGC);
72	Assert(pVM->mm.s.pvHyperAreaGC < 0xff000000);
73
74	uint32_t cbHyperHeap;
75	int rc = CFGMR3QueryU32(CFGMR3GetChild(CFGMR3GetRoot(pVM), "MM"), "cbHyperHeap", &cbHyperHeap);
76	if (rc == VERR_CFGM_NO_PARENT \|\| rc == VERR_CFGM_VALUE_NOT_FOUND)
77	cbHyperHeap = 1280*_1K;
78	else if (VBOX_FAILURE(rc))
79	{
80	LogRel(("MM/cbHyperHeap query -> %Vrc\n", rc));
81	AssertRCReturn(rc, rc);
82	}
83	cbHyperHeap = RT_ALIGN_32(cbHyperHeap, PAGE_SIZE);
84
85	/*
86	* Allocate the hypervisor heap.
87	*
88	* (This must be done before we start adding memory to the
89	* hypervisor static area because lookup records are allocated from it.)
90	*/
91	rc = mmR3HyperHeapCreate(pVM, cbHyperHeap, &pVM->mm.s.pHyperHeapHC);
92	if (VBOX_SUCCESS(rc))
93	{
94	/*
95	* Make a small head fence to fend of accidental sequential access.
96	*/
97	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
98
99	/*
100	* Map the VM structure into the hypervisor space.
101	*/
102	rc = MMR3HyperMapPages(pVM, pVM, pVM->pVMR0, RT_ALIGN_Z(sizeof(VM), PAGE_SIZE) >> PAGE_SHIFT, pVM->paVMPagesR3, "VM", &pVM->pVMGC);
103	if (VBOX_SUCCESS(rc))
104	{
105	/* Reserve a page for fencing. */
106	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
107
108	/*
109	* Map the heap into the hypervisor space.
110	*/
111	rc = mmR3HyperHeapMap(pVM, pVM->mm.s.pHyperHeapHC, &pVM->mm.s.pHyperHeapGC);
112	if (VBOX_SUCCESS(rc))
113	{
114	/*
115	* Register info handlers.
116	*/
117	DBGFR3InfoRegisterInternal(pVM, "hma", "Show the layout of the Hypervisor Memory Area.", mmR3HyperInfoHma);
118
119	LogFlow(("mmR3HyperInit: returns VINF_SUCCESS\n"));
120	return VINF_SUCCESS;
121	}
122	/* Caller will do proper cleanup. */
123	}
124	}
125
126	LogFlow(("mmR3HyperInit: returns %Vrc\n", rc));
127	return rc;
128	}
129
130
131	/**
132	* Finalizes the HMA mapping.
133	*
134	* This is called later during init, most (all) HMA allocations should be done
135	* by the time this function is called.
136	*
137	* @returns VBox status.
138	*/
139	MMR3DECL(int) MMR3HyperInitFinalize(PVM pVM)
140	{
141	LogFlow(("MMR3HyperInitFinalize:\n"));
142
143	/*
144	* Adjust and create the HMA mapping.
145	*/
146	while ((RTINT)pVM->mm.s.offHyperNextStatic + 64*_1K < (RTINT)pVM->mm.s.cbHyperArea - _4M)
147	pVM->mm.s.cbHyperArea -= _4M;
148	int rc = PGMR3MapPT(pVM, pVM->mm.s.pvHyperAreaGC, pVM->mm.s.cbHyperArea,
149	mmR3HyperRelocateCallback, NULL, "Hypervisor Memory Area");
150	if (VBOX_FAILURE(rc))
151	return rc;
152	pVM->mm.s.fPGMInitialized = true;
153
154	/*
155	* Do all the delayed mappings.
156	*/
157	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((uintptr_t)pVM->mm.s.pHyperHeapHC + pVM->mm.s.offLookupHyper);
158	for (;;)
159	{
160	RTGCPTR GCPtr = pVM->mm.s.pvHyperAreaGC + pLookup->off;
161	unsigned cPages = pLookup->cb >> PAGE_SHIFT;
162	switch (pLookup->enmType)
163	{
164	case MMLOOKUPHYPERTYPE_LOCKED:
165	rc = mmR3MapLocked(pVM, pLookup->u.Locked.pLockedMem, GCPtr, 0, cPages, 0);
166	break;
167
168	case MMLOOKUPHYPERTYPE_HCPHYS:
169	rc = PGMMap(pVM, GCPtr, pLookup->u.HCPhys.HCPhys, pLookup->cb, 0);
170	break;
171
172	case MMLOOKUPHYPERTYPE_GCPHYS:
173	{
174	const RTGCPHYS GCPhys = pLookup->u.GCPhys.GCPhys;
175	const size_t cb = pLookup->cb;
176	for (unsigned off = 0; off < cb; off += PAGE_SIZE)
177	{
178	RTHCPHYS HCPhys;
179	rc = PGMPhysGCPhys2HCPhys(pVM, GCPhys + off, &HCPhys);
180	if (VBOX_FAILURE(rc))
181	break;
182	rc = PGMMap(pVM, GCPtr + off, HCPhys, PAGE_SIZE, 0);
183	if (VBOX_FAILURE(rc))
184	break;
185	}
186	break;
187	}
188
189	case MMLOOKUPHYPERTYPE_MMIO2:
190	{
191	const RTGCPHYS offEnd = pLookup->u.MMIO2.off + pLookup->cb;
192	for (RTGCPHYS offCur = pLookup->u.MMIO2.off; offCur < offEnd; offCur += PAGE_SIZE)
193	{
194	RTHCPHYS HCPhys;
195	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pLookup->u.MMIO2.pDevIns, pLookup->u.MMIO2.iRegion, offCur, &HCPhys);
196	if (RT_FAILURE(rc))
197	break;
198	rc = PGMMap(pVM, GCPtr + (offCur - pLookup->u.MMIO2.off), HCPhys, PAGE_SIZE, 0);
199	if (RT_FAILURE(rc))
200	break;
201	}
202	break;
203	}
204
205	case MMLOOKUPHYPERTYPE_DYNAMIC:
206	/* do nothing here since these are either fences or managed by someone else using PGM. */
207	break;
208
209	default:
210	AssertMsgFailed(("enmType=%d\n", pLookup->enmType));
211	break;
212	}
213
214	if (VBOX_FAILURE(rc))
215	{
216	AssertMsgFailed(("rc=%Vrc cb=%d GCPtr=%VGv enmType=%d pszDesc=%s\n",
217	rc, pLookup->cb, pLookup->enmType, pLookup->pszDesc));
218	return rc;
219	}
220
221	/* next */
222	if (pLookup->offNext == (int32_t)NIL_OFFSET)
223	break;
224	pLookup = (PMMLOOKUPHYPER)((uintptr_t)pLookup + pLookup->offNext);
225	}
226
227	LogFlow(("MMR3HyperInitFinalize: returns VINF_SUCCESS\n"));
228	return VINF_SUCCESS;
229	}
230
231
232	/**
233	* Callback function which will be called when PGM is trying to find
234	* a new location for the mapping.
235	*
236	* The callback is called in two modes, 1) the check mode and 2) the relocate mode.
237	* In 1) the callback should say if it objects to a suggested new location. If it
238	* accepts the new location, it is called again for doing it's relocation.
239	*
240	*
241	* @returns true if the location is ok.
242	* @returns false if another location should be found.
243	* @param pVM The VM handle.
244	* @param GCPtrOld The old virtual address.
245	* @param GCPtrNew The new virtual address.
246	* @param enmMode Used to indicate the callback mode.
247	* @param pvUser User argument. Ignored.
248	* @remark The return value is no a failure indicator, it's an acceptance
249	* indicator. Relocation can not fail!
250	*/
251	static DECLCALLBACK(bool) mmR3HyperRelocateCallback(PVM pVM, RTGCPTR GCPtrOld, RTGCPTR GCPtrNew, PGMRELOCATECALL enmMode, void *pvUser)
252	{
253	switch (enmMode)
254	{
255	/*
256	* Verify location - all locations are good for us.
257	*/
258	case PGMRELOCATECALL_SUGGEST:
259	return true;
260
261	/*
262	* Execute the relocation.
263	*/
264	case PGMRELOCATECALL_RELOCATE:
265	{
266	/*
267	* Accepted!
268	*/
269	AssertMsg(GCPtrOld == pVM->mm.s.pvHyperAreaGC, ("GCPtrOld=%#x pVM->mm.s.pvHyperAreaGC=%#x\n", GCPtrOld, pVM->mm.s.pvHyperAreaGC));
270	Log(("Relocating the hypervisor from %#x to %#x\n", GCPtrOld, GCPtrNew));
271
272	/* relocate our selves and the VM structure. */
273	RTGCINTPTR offDelta = GCPtrNew - GCPtrOld;
274	pVM->pVMGC += offDelta;
275	pVM->mm.s.pvHyperAreaGC += offDelta;
276	pVM->mm.s.pHyperHeapGC += offDelta;
277	pVM->mm.s.pHyperHeapHC->pbHeapGC += offDelta;
278	pVM->mm.s.pHyperHeapHC->pVMGC += pVM->pVMGC;
279
280	/* relocate the rest. */
281	VMR3Relocate(pVM, offDelta);
282	return true;
283	}
284
285	default:
286	AssertMsgFailed(("Invalid relocation mode %d\n", enmMode));
287	}
288
289	return false;
290	}
291
292
293	/**
294	* Maps contiguous HC physical memory into the hypervisor region in the GC.
295	*
296	* @return VBox status code.
297	*
298	* @param pVM VM handle.
299	* @param pvHC Host context address of the memory. Must be page aligned!
300	* @param HCPhys Host context physical address of the memory to be mapped. Must be page aligned!
301	* @param cb Size of the memory. Will be rounded up to nearest page.
302	* @param pszDesc Description.
303	* @param pGCPtr Where to store the GC address.
304	*/
305	MMR3DECL(int) MMR3HyperMapHCPhys(PVM pVM, void pvHC, RTHCPHYS HCPhys, size_t cb, const char pszDesc, PRTGCPTR pGCPtr)
306	{
307	LogFlow(("MMR3HyperMapHCPhys: pvHc=%p HCPhys=%VHp cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", pvHC, HCPhys, (int)cb, pszDesc, pszDesc, pGCPtr));
308
309	/*
310	* Validate input.
311	*/
312	AssertReturn(RT_ALIGN_P(pvHC, PAGE_SIZE) == pvHC, VERR_INVALID_PARAMETER);
313	AssertReturn(RT_ALIGN_T(HCPhys, PAGE_SIZE, RTHCPHYS) == HCPhys, VERR_INVALID_PARAMETER);
314	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
315
316	/*
317	* Add the memory to the hypervisor area.
318	*/
319	uint32_t cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
320	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
321	RTGCPTR GCPtr;
322	PMMLOOKUPHYPER pLookup;
323	int rc = mmR3HyperMap(pVM, cbAligned, pszDesc, &GCPtr, &pLookup);
324	if (VBOX_SUCCESS(rc))
325	{
326	pLookup->enmType = MMLOOKUPHYPERTYPE_HCPHYS;
327	pLookup->u.HCPhys.pvHC = pvHC;
328	pLookup->u.HCPhys.HCPhys = HCPhys;
329
330	/*
331	* Update the page table.
332	*/
333	if (pVM->mm.s.fPGMInitialized)
334	rc = PGMMap(pVM, GCPtr, HCPhys, cbAligned, 0);
335	if (VBOX_SUCCESS(rc))
336	*pGCPtr = GCPtr;
337	}
338	return rc;
339	}
340
341
342	/**
343	* Maps contiguous GC physical memory into the hypervisor region in the GC.
344	*
345	* @return VBox status code.
346	*
347	* @param pVM VM handle.
348	* @param GCPhys Guest context physical address of the memory to be mapped. Must be page aligned!
349	* @param cb Size of the memory. Will be rounded up to nearest page.
350	* @param pszDesc Mapping description.
351	* @param pGCPtr Where to store the GC address.
352	*/
353	MMR3DECL(int) MMR3HyperMapGCPhys(PVM pVM, RTGCPHYS GCPhys, size_t cb, const char *pszDesc, PRTGCPTR pGCPtr)
354	{
355	LogFlow(("MMR3HyperMapGCPhys: GCPhys=%VGp cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", GCPhys, (int)cb, pszDesc, pszDesc, pGCPtr));
356
357	/*
358	* Validate input.
359	*/
360	AssertReturn(RT_ALIGN_T(GCPhys, PAGE_SIZE, RTGCPHYS) == GCPhys, VERR_INVALID_PARAMETER);
361	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
362
363	/*
364	* Add the memory to the hypervisor area.
365	*/
366	cb = RT_ALIGN_Z(cb, PAGE_SIZE);
367	RTGCPTR GCPtr;
368	PMMLOOKUPHYPER pLookup;
369	int rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
370	if (VBOX_SUCCESS(rc))
371	{
372	pLookup->enmType = MMLOOKUPHYPERTYPE_GCPHYS;
373	pLookup->u.GCPhys.GCPhys = GCPhys;
374
375	/*
376	* Update the page table.
377	*/
378	for (unsigned off = 0; off < cb; off += PAGE_SIZE)
379	{
380	RTHCPHYS HCPhys;
381	rc = PGMPhysGCPhys2HCPhys(pVM, GCPhys + off, &HCPhys);
382	AssertRC(rc);
383	if (VBOX_FAILURE(rc))
384	{
385	AssertMsgFailed(("rc=%Vrc GCPhys=%VGv off=%#x %s\n", rc, GCPhys, off, pszDesc));
386	break;
387	}
388	if (pVM->mm.s.fPGMInitialized)
389	{
390	rc = PGMMap(pVM, GCPtr + off, HCPhys, PAGE_SIZE, 0);
391	AssertRC(rc);
392	if (VBOX_FAILURE(rc))
393	{
394	AssertMsgFailed(("rc=%Vrc GCPhys=%VGv off=%#x %s\n", rc, GCPhys, off, pszDesc));
395	break;
396	}
397	}
398	}
399
400	if (VBOX_SUCCESS(rc) && pGCPtr)
401	*pGCPtr = GCPtr;
402	}
403	return rc;
404	}
405
406
407	/**
408	* Maps a portion of an MMIO2 region into the hypervisor region.
409	*
410	* Callers of this API must never deregister the MMIO2 region before the
411	* VM is powered off. If this becomes a requirement MMR3HyperUnmapMMIO2
412	* API will be needed to perform cleanups.
413	*
414	* @return VBox status code.
415	*
416	* @param pVM Pointer to the shared VM structure.
417	* @param pDevIns The device owning the MMIO2 memory.
418	* @param iRegion The region.
419	* @param off The offset into the region. Will be rounded down to closest page boundrary.
420	* @param cb The number of bytes to map. Will be rounded up to the closest page boundrary.
421	* @param pszDesc Mapping description.
422	* @param pGCPtr Where to store the GC address.
423	*/
424	MMR3DECL(int) MMR3HyperMapMMIO2(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion, RTGCPHYS off, RTGCPHYS cb,
425	const char *pszDesc, PRTGCPTR pGCPtr)
426	{
427	LogFlow(("MMR3HyperMapMMIO2: pDevIns=%p iRegion=%#x off=%VGp cb=%VGp pszDesc=%p:{%s} pGCPtr=%p\n",
428	pDevIns, iRegion, off, cb, pszDesc, pszDesc, pGCPtr));
429	int rc;
430
431	/*
432	* Validate input.
433	*/
434	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
435	AssertReturn(off + cb > off, VERR_INVALID_PARAMETER);
436	uint32_t const offPage = off & PAGE_OFFSET_MASK;
437	off &= ~(RTGCPHYS)PAGE_OFFSET_MASK;
438	cb += offPage;
439	cb = RT_ALIGN_Z(cb, PAGE_SIZE);
440	const RTGCPHYS offEnd = off + cb;
441	AssertReturn(offEnd > off, VERR_INVALID_PARAMETER);
442	for (RTGCPHYS offCur = off; offCur < offEnd; offCur += PAGE_SIZE)
443	{
444	RTHCPHYS HCPhys;
445	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pDevIns, iRegion, offCur, &HCPhys);
446	AssertMsgRCReturn(rc, ("rc=%Rrc - iRegion=%d off=%RGp\n", rc, iRegion, off), rc);
447	}
448
449	/*
450	* Add the memory to the hypervisor area.
451	*/
452	RTGCPTR GCPtr;
453	PMMLOOKUPHYPER pLookup;
454	rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
455	if (VBOX_SUCCESS(rc))
456	{
457	pLookup->enmType = MMLOOKUPHYPERTYPE_MMIO2;
458	pLookup->u.MMIO2.pDevIns = pDevIns;
459	pLookup->u.MMIO2.iRegion = iRegion;
460	pLookup->u.MMIO2.off = off;
461
462	/*
463	* Update the page table.
464	*/
465	if (pVM->mm.s.fPGMInitialized)
466	{
467	for (RTGCPHYS offCur = off; offCur < offEnd; offCur += PAGE_SIZE)
468	{
469	RTHCPHYS HCPhys;
470	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pDevIns, iRegion, offCur, &HCPhys);
471	AssertRCReturn(rc, VERR_INTERNAL_ERROR);
472	rc = PGMMap(pVM, GCPtr + (offCur - off), HCPhys, PAGE_SIZE, 0);
473	if (VBOX_FAILURE(rc))
474	{
475	AssertMsgFailed(("rc=%Vrc offCur=%RGp %s\n", rc, offCur, pszDesc));
476	break;
477	}
478	}
479	}
480
481	if (VBOX_SUCCESS(rc) && pGCPtr)
482	*pGCPtr = GCPtr \| offPage;
483	}
484	return rc;
485	}
486
487
488
489
490	/**
491	* Locks and Maps HC virtual memory into the hypervisor region in the GC.
492	*
493	* @return VBox status code.
494	*
495	* @param pVM VM handle.
496	* @param pvHC Host context address of the memory (may be not page aligned).
497	* @param cb Size of the memory. Will be rounded up to nearest page.
498	* @param fFree Set this if MM is responsible for freeing the memory using SUPPageFree.
499	* @param pszDesc Mapping description.
500	* @param pGCPtr Where to store the GC address corresponding to pvHC.
501	*/
502	MMR3DECL(int) MMR3HyperMapHCRam(PVM pVM, void pvHC, size_t cb, bool fFree, const char pszDesc, PRTGCPTR pGCPtr)
503	{
504	LogFlow(("MMR3HyperMapHCRam: pvHc=%p cb=%d fFree=%d pszDesc=%p:{%s} pGCPtr=%p\n", pvHC, (int)cb, fFree, pszDesc, pszDesc, pGCPtr));
505
506	/*
507	* Validate input.
508	*/
509	if ( !pvHC
510	\|\| cb <= 0
511	\|\| !pszDesc
512	\|\| !*pszDesc)
513	{
514	AssertMsgFailed(("Invalid parameter\n"));
515	return VERR_INVALID_PARAMETER;
516	}
517
518	/*
519	* Page align address and size.
520	*/
521	void pvHCPage = (void )((uintptr_t)pvHC & PAGE_BASE_HC_MASK);
522	cb += (uintptr_t)pvHC & PAGE_OFFSET_MASK;
523	cb = RT_ALIGN_Z(cb, PAGE_SIZE);
524
525	/*
526	* Add the memory to the hypervisor area.
527	*/
528	RTGCPTR GCPtr;
529	PMMLOOKUPHYPER pLookup;
530	int rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
531	if (VBOX_SUCCESS(rc))
532	{
533	/*
534	* Lock the heap memory and tell PGM about the locked pages.
535	*/
536	PMMLOCKEDMEM pLockedMem;
537	rc = mmR3LockMem(pVM, pvHCPage, cb, fFree ? MM_LOCKED_TYPE_HYPER : MM_LOCKED_TYPE_HYPER_NOFREE, &pLockedMem, false /* fSilentFailure */);
538	if (VBOX_SUCCESS(rc))
539	{
540	/* map the stuff into guest address space. */
541	if (pVM->mm.s.fPGMInitialized)
542	rc = mmR3MapLocked(pVM, pLockedMem, GCPtr, 0, ~(size_t)0, 0);
543	if (VBOX_SUCCESS(rc))
544	{
545	pLookup->enmType = MMLOOKUPHYPERTYPE_LOCKED;
546	pLookup->u.Locked.pvHC = pvHC;
547	pLookup->u.Locked.pvR0 = NIL_RTR0PTR;
548	pLookup->u.Locked.pLockedMem = pLockedMem;
549
550	/* done. */
551	GCPtr \|= (uintptr_t)pvHC & PAGE_OFFSET_MASK;
552	*pGCPtr = GCPtr;
553	return rc;
554	}
555	/* Don't care about failure clean, we're screwed if this fails anyway. */
556	}
557	}
558
559	return rc;
560	}
561
562
563	/**
564	* Maps locked R3 virtual memory into the hypervisor region in the GC.
565	*
566	* @return VBox status code.
567	*
568	* @param pVM VM handle.
569	* @param pvR3 The ring-3 address of the memory, must be page aligned.
570	* @param pvR0 The ring-0 address of the memory, must be page aligned. (optional)
571	* @param cPages The number of pages.
572	* @param paPages The page descriptors.
573	* @param pszDesc Mapping description.
574	* @param pGCPtr Where to store the GC address corresponding to pvHC.
575	*/
576	MMR3DECL(int) MMR3HyperMapPages(PVM pVM, void pvR3, RTR0PTR pvR0, size_t cPages, PCSUPPAGE paPages, const char pszDesc, PRTGCPTR pGCPtr)
577	{
578	LogFlow(("MMR3HyperMapPages: pvR3=%p pvR0=%p cPages=%zu paPages=%p pszDesc=%p:{%s} pGCPtr=%p\n",
579	pvR3, pvR0, cPages, paPages, pszDesc, pszDesc, pGCPtr));
580
581	/*
582	* Validate input.
583	*/
584	AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
585	AssertPtrReturn(paPages, VERR_INVALID_POINTER);
586	AssertReturn(cPages > 0, VERR_INVALID_PARAMETER);
587	AssertReturn(cPages < 1024, VERR_INVALID_PARAMETER);
588	AssertPtrReturn(pszDesc, VERR_INVALID_POINTER);
589	AssertReturn(*pszDesc, VERR_INVALID_PARAMETER);
590	AssertPtrReturn(pGCPtr, VERR_INVALID_PARAMETER);
591
592	/*
593	* Add the memory to the hypervisor area.
594	*/
595	RTGCPTR GCPtr;
596	PMMLOOKUPHYPER pLookup;
597	int rc = mmR3HyperMap(pVM, cPages << PAGE_SHIFT, pszDesc, &GCPtr, &pLookup);
598	if (VBOX_SUCCESS(rc))
599	{
600	/*
601	* Create a locked memory record and tell PGM about this.
602	*/
603	PMMLOCKEDMEM pLockedMem = (PMMLOCKEDMEM)MMR3HeapAlloc(pVM, MM_TAG_MM, RT_OFFSETOF(MMLOCKEDMEM, aPhysPages[cPages]));
604	if (pLockedMem)
605	{
606	pLockedMem->pv = pvR3;
607	pLockedMem->cb = cPages << PAGE_SHIFT;
608	pLockedMem->eType = MM_LOCKED_TYPE_HYPER_PAGES;
609	memset(&pLockedMem->u, 0, sizeof(pLockedMem->u));
610	for (size_t i = 0; i < cPages; i++)
611	{
612	AssertReleaseReturn(paPages[i].Phys != 0 && paPages[i].Phys != NIL_RTHCPHYS && !(paPages[i].Phys & PAGE_OFFSET_MASK), VERR_INTERNAL_ERROR);
613	pLockedMem->aPhysPages[i].Phys = paPages[i].Phys;
614	pLockedMem->aPhysPages[i].uReserved = (RTHCUINTPTR)pLockedMem;
615	}
616
617	/* map the stuff into guest address space. */
618	if (pVM->mm.s.fPGMInitialized)
619	rc = mmR3MapLocked(pVM, pLockedMem, GCPtr, 0, ~(size_t)0, 0);
620	if (VBOX_SUCCESS(rc))
621	{
622	pLookup->enmType = MMLOOKUPHYPERTYPE_LOCKED;
623	pLookup->u.Locked.pvHC = pvR3;
624	pLookup->u.Locked.pvR0 = pvR0;
625	pLookup->u.Locked.pLockedMem = pLockedMem;
626
627	/* done. */
628	*pGCPtr = GCPtr;
629	return rc;
630	}
631	/* Don't care about failure clean, we're screwed if this fails anyway. */
632	}
633	}
634
635	return rc;
636	}
637
638
639	/**
640	* Reserves a hypervisor memory area.
641	* Most frequent usage is fence pages and dynamically mappings like the guest PD and PDPT.
642	*
643	* @return VBox status code.
644	*
645	* @param pVM VM handle.
646	* @param cb Size of the memory. Will be rounded up to nearest page.
647	* @param pszDesc Mapping description.
648	* @param pGCPtr Where to store the assigned GC address. Optional.
649	*/
650	MMR3DECL(int) MMR3HyperReserve(PVM pVM, unsigned cb, const char *pszDesc, PRTGCPTR pGCPtr)
651	{
652	LogFlow(("MMR3HyperMapHCRam: cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", (int)cb, pszDesc, pszDesc, pGCPtr));
653
654	/*
655	* Validate input.
656	*/
657	if ( cb <= 0
658	\|\| !pszDesc
659	\|\| !*pszDesc)
660	{
661	AssertMsgFailed(("Invalid parameter\n"));
662	return VERR_INVALID_PARAMETER;
663	}
664
665	/*
666	* Add the memory to the hypervisor area.
667	*/
668	RTGCPTR GCPtr;
669	PMMLOOKUPHYPER pLookup;
670	int rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
671	if (VBOX_SUCCESS(rc))
672	{
673	pLookup->enmType = MMLOOKUPHYPERTYPE_DYNAMIC;
674	if (pGCPtr)
675	*pGCPtr = GCPtr;
676	return VINF_SUCCESS;
677	}
678	return rc;
679	}
680
681
682	/**
683	* Adds memory to the hypervisor memory arena.
684	*
685	* @return VBox status code.
686	* @param pVM The VM handle.
687	* @param cb Size of the memory. Will be rounded up to neares page.
688	* @param pszDesc The description of the memory.
689	* @param pGCPtr Where to store the GC address.
690	* @param ppLookup Where to store the pointer to the lookup record.
691	* @remark We assume the threading structure of VBox imposes natural
692	* serialization of most functions, this one included.
693	*/
694	static int mmR3HyperMap(PVM pVM, const size_t cb, const char pszDesc, PRTGCPTR pGCPtr, PMMLOOKUPHYPER ppLookup)
695	{
696	/*
697	* Validate input.
698	*/
699	const uint32_t cbAligned = RT_ALIGN(cb, PAGE_SIZE);
700	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
701	if (pVM->mm.s.offHyperNextStatic + cbAligned >= pVM->mm.s.cbHyperArea) /* don't use the last page, it's a fence. */
702	{
703	AssertMsgFailed(("Out of static mapping space in the HMA! offHyperAreaGC=%x cbAligned=%x\n",
704	pVM->mm.s.offHyperNextStatic, cbAligned));
705	return VERR_NO_MEMORY;
706	}
707
708	/*
709	* Allocate lookup record.
710	*/
711	PMMLOOKUPHYPER pLookup;
712	int rc = MMHyperAlloc(pVM, sizeof(pLookup), 1, MM_TAG_MM, (void *)&pLookup);
713	if (VBOX_SUCCESS(rc))
714	{
715	/*
716	* Initialize it and insert it.
717	*/
718	pLookup->offNext = pVM->mm.s.offLookupHyper;
719	pLookup->cb = cbAligned;
720	pLookup->off = pVM->mm.s.offHyperNextStatic;
721	pVM->mm.s.offLookupHyper = (char )pLookup - (char )pVM->mm.s.pHyperHeapHC;
722	if (pLookup->offNext != (int32_t)NIL_OFFSET)
723	pLookup->offNext -= pVM->mm.s.offLookupHyper;
724	pLookup->enmType = MMLOOKUPHYPERTYPE_INVALID;
725	memset(&pLookup->u, 0xff, sizeof(pLookup->u));
726	pLookup->pszDesc = pszDesc;
727
728	/* Mapping. */
729	*pGCPtr = pVM->mm.s.pvHyperAreaGC + pVM->mm.s.offHyperNextStatic;
730	pVM->mm.s.offHyperNextStatic += cbAligned;
731
732	/* Return pointer. */
733	*ppLookup = pLookup;
734	}
735
736	AssertRC(rc);
737	LogFlow(("mmR3HyperMap: returns %Vrc pGCPtr=%VGv\n", rc, pGCPtr));
738	return rc;
739	}
740
741
742	/**
743	* Allocates a new heap.
744	*
745	* @returns VBox status code.
746	* @param pVM The VM handle.
747	* @param cb The size of the new heap.
748	* @param ppHeap Where to store the heap pointer on successful return.
749	*/
750	static int mmR3HyperHeapCreate(PVM pVM, const size_t cb, PMMHYPERHEAP *ppHeap)
751	{
752	/*
753	* Allocate the hypervisor heap.
754	*/
755	const uint32_t cbAligned = RT_ALIGN_Z(cb, PAGE_SIZE);
756	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
757	void *pv;
758	int rc = SUPPageAlloc(cbAligned >> PAGE_SHIFT, &pv);
759	if (VBOX_SUCCESS(rc))
760	{
761	/*
762	* Initialize the heap and first free chunk.
763	*/
764	PMMHYPERHEAP pHeap = (PMMHYPERHEAP)pv;
765	pHeap->u32Magic = MMHYPERHEAP_MAGIC;
766	pHeap->pVMHC = pVM;
767	pHeap->pVMGC = pVM->pVMGC;
768	pHeap->pbHeapHC = (uint8_t *)pHeap + MMYPERHEAP_HDR_SIZE;
769	//pHeap->pbHeapGC = 0; // set by mmR3HyperHeapMap()
770	pHeap->cbHeap = cbAligned - MMYPERHEAP_HDR_SIZE;
771	pHeap->cbFree = pHeap->cbHeap - sizeof(MMHYPERCHUNK);
772	//pHeap->offFreeHead = 0;
773	//pHeap->offFreeTail = 0;
774	pHeap->offPageAligned = pHeap->cbHeap;
775	//pHeap->HyperHeapStatTree = 0;
776
777	PMMHYPERCHUNKFREE pFree = (PMMHYPERCHUNKFREE)pHeap->pbHeapHC;
778	pFree->cb = pHeap->cbFree;
779	//pFree->core.offNext = 0;
780	MMHYPERCHUNK_SET_TYPE(&pFree->core, MMHYPERCHUNK_FLAGS_FREE);
781	pFree->core.offHeap = -(int32_t)MMYPERHEAP_HDR_SIZE;
782	//pFree->offNext = 0;
783	//pFree->offPrev = 0;
784
785	STAMR3Register(pVM, &pHeap->cbHeap, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, "/MM/HyperHeap/cbHeap", STAMUNIT_BYTES, "The heap size.");
786	STAMR3Register(pVM, &pHeap->cbFree, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, "/MM/HyperHeap/cbFree", STAMUNIT_BYTES, "The free space.");
787
788	*ppHeap = pHeap;
789	return VINF_SUCCESS;
790	}
791	AssertMsgFailed(("SUPPageAlloc(%d,) -> %Vrc\n", cbAligned >> PAGE_SHIFT, rc));
792
793	*ppHeap = NULL;
794	return rc;
795	}
796
797
798	/**
799	* Allocates a new heap.
800	*/
801	static int mmR3HyperHeapMap(PVM pVM, PMMHYPERHEAP pHeap, PRTGCPTR ppHeapGC)
802	{
803	int rc = MMR3HyperMapHCRam(pVM, pHeap, pHeap->cbHeap + MMYPERHEAP_HDR_SIZE, true, "Heap", ppHeapGC);
804	if (VBOX_SUCCESS(rc))
805	{
806	pHeap->pVMGC = pVM->pVMGC;
807	pHeap->pbHeapGC = *ppHeapGC + MMYPERHEAP_HDR_SIZE;
808	/* Reserve a page for fencing. */
809	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
810	}
811	return rc;
812	}
813
814
815	#if 0
816	/**
817	* Destroys a heap.
818	*/
819	static int mmR3HyperHeapDestroy(PVM pVM, PMMHYPERHEAP pHeap)
820	{
821	/* all this is dealt with when unlocking and freeing locked memory. */
822	}
823	#endif
824
825
826	/**
827	* Allocates memory in the Hypervisor (GC VMM) area which never will
828	* be freed and doesn't have any offset based relation to other heap blocks.
829	*
830	* The latter means that two blocks allocated by this API will not have the
831	* same relative position to each other in GC and HC. In short, never use
832	* this API for allocating nodes for an offset based AVL tree!
833	*
834	* The returned memory is of course zeroed.
835	*
836	* @returns VBox status code.
837	* @param pVM The VM to operate on.
838	* @param cb Number of bytes to allocate.
839	* @param uAlignment Required memory alignment in bytes.
840	* Values are 0,8,16,32 and PAGE_SIZE.
841	* 0 -> default alignment, i.e. 8 bytes.
842	* @param enmTag The statistics tag.
843	* @param ppv Where to store the address to the allocated
844	* memory.
845	* @remark This is assumed not to be used at times when serialization is required.
846	*/
847	MMDECL(int) MMR3HyperAllocOnceNoRel(PVM pVM, size_t cb, unsigned uAlignment, MMTAG enmTag, void **ppv)
848	{
849	AssertMsg(cb >= 8, ("Hey! Do you really mean to allocate less than 8 bytes?! cb=%d\n", cb));
850
851	/*
852	* Choose between allocating a new chunk of HMA memory
853	* and the heap. We will only do BIG allocations from HMA.
854	*/
855	if ( cb < _64K
856	&& ( uAlignment != PAGE_SIZE
857	\|\| cb < 48*_1K))
858	{
859	int rc = MMHyperAlloc(pVM, cb, uAlignment, enmTag, ppv);
860	if ( rc != VERR_MM_HYPER_NO_MEMORY
861	\|\| cb <= 8*_1K)
862	{
863	Log2(("MMR3HyperAllocOnceNoRel: cb=%#zx uAlignment=%#x returns %Rrc and *ppv=%p\n",
864	cb, uAlignment, rc, *ppv));
865	return rc;
866	}
867	}
868
869	/*
870	* Validate alignment.
871	*/
872	switch (uAlignment)
873	{
874	case 0:
875	case 8:
876	case 16:
877	case 32:
878	case PAGE_SIZE:
879	break;
880	default:
881	AssertMsgFailed(("Invalid alignment %u\n", uAlignment));
882	return VERR_INVALID_PARAMETER;
883	}
884
885	/*
886	* Allocate the pages and the HMA space.
887	*/
888	cb = RT_ALIGN(cb, PAGE_SIZE);
889	void *pvPages;
890	int rc = SUPPageAlloc(cb >> PAGE_SHIFT, &pvPages);
891	if (VBOX_SUCCESS(rc))
892	{
893	RTGCPTR GCPtr;
894	rc = MMR3HyperMapHCRam(pVM, pvPages, cb, true, mmR3GetTagName(enmTag), &GCPtr);
895	if (VBOX_SUCCESS(rc))
896	{
897	*ppv = pvPages;
898	Log2(("MMR3HyperAllocOnceNoRel: cb=%#x uAlignment=%#x returns VINF_SUCCESS and *ppv=%p\n",
899	cb, uAlignment, *ppv));
900	return rc;
901	}
902	AssertMsgFailed(("Failed to allocate %zd bytes! %Rrc\n", cb, rc));
903	SUPPageFree(pvPages, cb >> PAGE_SHIFT);
904
905	/*
906	* HACK ALERT! Try allocate it off the heap so that we don't freak
907	* out during vga/vmmdev mmio2 allocation with certain ram sizes.
908	*/
909	/** @todo make a proper fix for this so we will never end up in this kind of situation! */
910	Log(("MMR3HyperAllocOnceNoRel: MMR3HyperMapHCRam failed with rc=%Rrc, try MMHyperAlloc(,%#d,,) instead\n", rc, cb));
911	int rc2 = MMHyperAlloc(pVM, cb, uAlignment, enmTag, ppv);
912	if (RT_SUCCESS(rc2))
913	{
914	Log2(("MMR3HyperAllocOnceNoRel: cb=%#x uAlignment=%#x returns %Rrc and *ppv=%p\n",
915	cb, uAlignment, rc, *ppv));
916	return rc;
917	}
918	}
919	else
920	AssertMsgFailed(("Failed to allocate %zd bytes! %Rrc\n", cb, rc));
921
922	if (rc == VERR_NO_MEMORY)
923	rc = VERR_MM_HYPER_NO_MEMORY;
924	LogRel(("MMR3HyperAllocOnceNoRel: cb=%#zx uAlignment=%#x returns %Rrc\n", cb, uAlignment, rc));
925	return rc;
926	}
927
928
929	/**
930	* Convert hypervisor HC virtual address to HC physical address.
931	*
932	* @returns HC physical address.
933	* @param pVM VM Handle
934	* @param pvHC Host context physical address.
935	*/
936	MMR3DECL(RTHCPHYS) MMR3HyperHCVirt2HCPhys(PVM pVM, void *pvHC)
937	{
938	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((char*)pVM->mm.s.pHyperHeapHC + pVM->mm.s.offLookupHyper);
939	for (;;)
940	{
941	switch (pLookup->enmType)
942	{
943	case MMLOOKUPHYPERTYPE_LOCKED:
944	{
945	unsigned off = (char )pvHC - (char )pLookup->u.Locked.pvHC;
946	if (off < pLookup->cb)
947	return (pLookup->u.Locked.pLockedMem->aPhysPages[off >> PAGE_SHIFT].Phys & X86_PTE_PAE_PG_MASK) \| (off & PAGE_OFFSET_MASK);
948	break;
949	}
950
951	case MMLOOKUPHYPERTYPE_HCPHYS:
952	{
953	unsigned off = (char )pvHC - (char )pLookup->u.HCPhys.pvHC;
954	if (off < pLookup->cb)
955	return pLookup->u.HCPhys.HCPhys + off;
956	break;
957	}
958
959	case MMLOOKUPHYPERTYPE_GCPHYS:
960	case MMLOOKUPHYPERTYPE_MMIO2:
961	case MMLOOKUPHYPERTYPE_DYNAMIC:
962	/* can (or don't want to) convert these kind of records. */
963	break;
964
965	default:
966	AssertMsgFailed(("enmType=%d\n", pLookup->enmType));
967	break;
968	}
969
970	/* next */
971	if ((unsigned)pLookup->offNext == NIL_OFFSET)
972	break;
973	pLookup = (PMMLOOKUPHYPER)((char *)pLookup + pLookup->offNext);
974	}
975
976	AssertMsgFailed(("pvHC=%p is not inside the hypervisor memory area!\n", pvHC));
977	return NIL_RTHCPHYS;
978	}
979
980
981	#if 0 /* unused, not implemented */
982	/**
983	* Convert hypervisor HC physical address to HC virtual address.
984	*
985	* @returns HC virtual address.
986	* @param pVM VM Handle
987	* @param HCPhys Host context physical address.
988	*/
989	MMR3DECL(void *) MMR3HyperHCPhys2HCVirt(PVM pVM, RTHCPHYS HCPhys)
990	{
991	void *pv;
992	int rc = MMR3HyperHCPhys2HCVirtEx(pVM, HCPhys, &pv);
993	if (VBOX_SUCCESS(rc))
994	return pv;
995	AssertMsgFailed(("Invalid address HCPhys=%x rc=%d\n", HCPhys, rc));
996	return NULL;
997	}
998
999
1000	/**
1001	* Convert hypervisor HC physical address to HC virtual address.
1002	*
1003	* @returns VBox status.
1004	* @param pVM VM Handle
1005	* @param HCPhys Host context physical address.
1006	* @param ppv Where to store the HC virtual address.
1007	*/
1008	MMR3DECL(int) MMR3HyperHCPhys2HCVirtEx(PVM pVM, RTHCPHYS HCPhys, void **ppv)
1009	{
1010	/*
1011	* Linear search.
1012	*/
1013	/** @todo implement when actually used. */
1014	return VERR_INVALID_POINTER;
1015	}
1016	#endif /* unused, not implemented */
1017
1018
1019	/**
1020	* Read hypervisor memory from GC virtual address.
1021	*
1022	* @returns VBox status.
1023	* @param pVM VM handle.
1024	* @param pvDst Destination address (HC of course).
1025	* @param GCPtr GC virtual address.
1026	* @param cb Number of bytes to read.
1027	*/
1028	MMR3DECL(int) MMR3HyperReadGCVirt(PVM pVM, void *pvDst, RTGCPTR GCPtr, size_t cb)
1029	{
1030	if (GCPtr - pVM->mm.s.pvHyperAreaGC >= pVM->mm.s.cbHyperArea)
1031	return VERR_INVALID_PARAMETER;
1032	return PGMR3MapRead(pVM, pvDst, GCPtr, cb);
1033	}
1034
1035
1036	/**
1037	* Info handler for 'hma', it dumps the list of lookup records for the hypervisor memory area.
1038	*
1039	* @param pVM The VM handle.
1040	* @param pHlp Callback functions for doing output.
1041	* @param pszArgs Argument string. Optional and specific to the handler.
1042	*/
1043	static DECLCALLBACK(void) mmR3HyperInfoHma(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
1044	{
1045	pHlp->pfnPrintf(pHlp, "Hypervisor Memory Area (HMA) Layout: Base %VGv, 0x%08x bytes\n",
1046	pVM->mm.s.pvHyperAreaGC, pVM->mm.s.cbHyperArea);
1047
1048	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((char*)pVM->mm.s.pHyperHeapHC + pVM->mm.s.offLookupHyper);
1049	for (;;)
1050	{
1051	switch (pLookup->enmType)
1052	{
1053	case MMLOOKUPHYPERTYPE_LOCKED:
1054	pHlp->pfnPrintf(pHlp, "%VGv-%VGv %VHv LOCKED %-*s %s\n",
1055	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1056	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1057	pLookup->u.Locked.pvHC,
1058	sizeof(RTHCPTR) * 2,
1059	pLookup->u.Locked.pLockedMem->eType == MM_LOCKED_TYPE_HYPER_NOFREE ? "nofree"
1060	: pLookup->u.Locked.pLockedMem->eType == MM_LOCKED_TYPE_HYPER ? "autofree"
1061	: pLookup->u.Locked.pLockedMem->eType == MM_LOCKED_TYPE_HYPER_PAGES ? "pages"
1062	: pLookup->u.Locked.pLockedMem->eType == MM_LOCKED_TYPE_PHYS ? "gstphys"
1063	: "??",
1064	pLookup->pszDesc);
1065	break;
1066
1067	case MMLOOKUPHYPERTYPE_HCPHYS:
1068	pHlp->pfnPrintf(pHlp, "%VGv-%VGv %VHv HCPHYS %VHp %s\n",
1069	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1070	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1071	pLookup->u.HCPhys.pvHC, pLookup->u.HCPhys.HCPhys,
1072	pLookup->pszDesc);
1073	break;
1074
1075	case MMLOOKUPHYPERTYPE_GCPHYS:
1076	pHlp->pfnPrintf(pHlp, "%VGv-%VGv %s GCPHYS %VGp%s %s\n",
1077	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1078	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1079	sizeof(RTHCPTR) * 2, "",
1080	pLookup->u.GCPhys.GCPhys, RT_ABS(sizeof(RTHCPHYS) - sizeof(RTGCPHYS)) * 2, "",
1081	pLookup->pszDesc);
1082	break;
1083
1084	case MMLOOKUPHYPERTYPE_MMIO2:
1085	pHlp->pfnPrintf(pHlp, "%VGv-%VGv %s MMIO2 %VGp%s %s\n",
1086	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1087	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1088	sizeof(RTHCPTR) * 2, "",
1089	pLookup->u.MMIO2.off, RT_ABS(sizeof(RTHCPHYS) - sizeof(RTGCPHYS)) * 2, "",
1090	pLookup->pszDesc);
1091	break;
1092
1093	case MMLOOKUPHYPERTYPE_DYNAMIC:
1094	pHlp->pfnPrintf(pHlp, "%VGv-%VGv %s DYNAMIC %s %s\n",
1095	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1096	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1097	sizeof(RTHCPTR) * 2, "",
1098	sizeof(RTHCPTR) * 2, "",
1099	pLookup->pszDesc);
1100	break;
1101
1102	default:
1103	AssertMsgFailed(("enmType=%d\n", pLookup->enmType));
1104	break;
1105	}
1106
1107	/* next */
1108	if ((unsigned)pLookup->offNext == NIL_OFFSET)
1109	break;
1110	pLookup = (PMMLOOKUPHYPER)((char *)pLookup + pLookup->offNext);
1111	}
1112	}
1113

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source: vbox/trunk/src/VBox/VMM/MMHyper.cpp@ 8155

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