MMHyper.cpp@ 18709

Last change on this file since 18709 was 18430, checked in by vboxsync, 16 years ago
MMR3HyperAllocOnceNoRel: Another size_t/uint32_t warning from MSC/64. Use this opportunity to optimize the fallback to not wase hyper heap on unnecessary alignment.
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1	/* $Id: MMHyper.cpp 18430 2009-03-28 02:03:31Z vboxsync $ */
2	/** @file
3	* MM - Memory 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	* Header Files *
25	*******************************************************************************/
26	#define LOG_GROUP LOG_GROUP_MM_HYPER
27	#include <VBox/pgm.h>
28	#include <VBox/mm.h>
29	#include <VBox/dbgf.h>
30	#include "MMInternal.h"
31	#include <VBox/vm.h>
32	#include <VBox/err.h>
33	#include <VBox/param.h>
34	#include <VBox/log.h>
35	#include <iprt/alloc.h>
36	#include <iprt/assert.h>
37	#include <iprt/string.h>
38
39
40	/*******************************************************************************
41	* Internal Functions *
42	*******************************************************************************/
43	static DECLCALLBACK(bool) mmR3HyperRelocateCallback(PVM pVM, RTGCPTR GCPtrOld, RTGCPTR GCPtrNew, PGMRELOCATECALL enmMode, void *pvUser);
44	static int mmR3HyperMap(PVM pVM, const size_t cb, const char pszDesc, PRTGCPTR pGCPtr, PMMLOOKUPHYPER ppLookup);
45	static int mmR3HyperHeapCreate(PVM pVM, const size_t cb, PMMHYPERHEAP *ppHeap, PRTR0PTR pR0PtrHeap);
46	static int mmR3HyperHeapMap(PVM pVM, PMMHYPERHEAP pHeap, PRTGCPTR ppHeapGC);
47	static DECLCALLBACK(void) mmR3HyperInfoHma(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
48
49
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	/** @todo @bugref{1865}, @bugref{3202}: Change the cbHyperHeap default
75	* depending on whether VT-x/AMD-V is enabled or not! Don't waste
76	* precious kernel space on heap for the PATM. */
77	uint32_t cbHyperHeap;
78	int rc = CFGMR3QueryU32(CFGMR3GetChild(CFGMR3GetRoot(pVM), "MM"), "cbHyperHeap", &cbHyperHeap);
79	if (rc == VERR_CFGM_NO_PARENT \|\| rc == VERR_CFGM_VALUE_NOT_FOUND)
80	{
81	cbHyperHeap = VMMIsHwVirtExtForced(pVM)
82	? 640*_1K
83	: 1280*_1K;
84
85	/* Adjust for dynamic stuff like RAM mapping chunks. Try playing kind
86	of safe with existing configs here (HMA size must not change)... */
87	uint64_t cbRam;
88	CFGMR3QueryU64Def(CFGMR3GetRoot(pVM), "RamSize", &cbRam, 0);
89	if (cbRam > _2G)
90	{
91	cbRam = RT_MIN(cbRam, _1T);
92	cbHyperHeap += (cbRam - _1G) / _1M * 128; /* 128 is a quick guess */
93	cbHyperHeap = RT_ALIGN_32(cbHyperHeap, _64K);
94	}
95	}
96	else
97	AssertLogRelRCReturn(rc, rc);
98	cbHyperHeap = RT_ALIGN_32(cbHyperHeap, PAGE_SIZE);
99	LogRel(("MM: cbHyperHeap=%#x (%u)\n", cbHyperHeap, cbHyperHeap));
100
101	/*
102	* Allocate the hypervisor heap.
103	*
104	* (This must be done before we start adding memory to the
105	* hypervisor static area because lookup records are allocated from it.)
106	*/
107	rc = mmR3HyperHeapCreate(pVM, cbHyperHeap, &pVM->mm.s.pHyperHeapR3, &pVM->mm.s.pHyperHeapR0);
108	if (RT_SUCCESS(rc))
109	{
110	/*
111	* Make a small head fence to fend of accidental sequential access.
112	*/
113	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
114
115	/*
116	* Map the VM structure into the hypervisor space.
117	*/
118	AssertRelease(pVM->cbSelf == RT_UOFFSETOF(VM, aCpus[pVM->cCPUs]));
119	RTGCPTR GCPtr;
120	rc = MMR3HyperMapPages(pVM, pVM, pVM->pVMR0, RT_ALIGN_Z(pVM->cbSelf, PAGE_SIZE) >> PAGE_SHIFT, pVM->paVMPagesR3, "VM", &GCPtr);
121	if (RT_SUCCESS(rc))
122	{
123	pVM->pVMRC = (RTRCPTR)GCPtr;
124	for (uint32_t i = 0; i < pVM->cCPUs; i++)
125	pVM->aCpus[i].pVMRC = pVM->pVMRC;
126
127	/* Reserve a page for fencing. */
128	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
129
130	/*
131	* Map the heap into the hypervisor space.
132	*/
133	rc = mmR3HyperHeapMap(pVM, pVM->mm.s.pHyperHeapR3, &GCPtr);
134	if (RT_SUCCESS(rc))
135	{
136	pVM->mm.s.pHyperHeapRC = (RTRCPTR)GCPtr;
137	Assert(pVM->mm.s.pHyperHeapRC == GCPtr);
138
139	/*
140	* Register info handlers.
141	*/
142	DBGFR3InfoRegisterInternal(pVM, "hma", "Show the layout of the Hypervisor Memory Area.", mmR3HyperInfoHma);
143
144	LogFlow(("mmR3HyperInit: returns VINF_SUCCESS\n"));
145	return VINF_SUCCESS;
146	}
147	/* Caller will do proper cleanup. */
148	}
149	}
150
151	LogFlow(("mmR3HyperInit: returns %Rrc\n", rc));
152	return rc;
153	}
154
155
156	/**
157	* Finalizes the HMA mapping.
158	*
159	* This is called later during init, most (all) HMA allocations should be done
160	* by the time this function is called.
161	*
162	* @returns VBox status.
163	*/
164	VMMR3DECL(int) MMR3HyperInitFinalize(PVM pVM)
165	{
166	LogFlow(("MMR3HyperInitFinalize:\n"));
167
168	/*
169	* Adjust and create the HMA mapping.
170	*/
171	while ((RTINT)pVM->mm.s.offHyperNextStatic + 64*_1K < (RTINT)pVM->mm.s.cbHyperArea - _4M)
172	pVM->mm.s.cbHyperArea -= _4M;
173	int rc = PGMR3MapPT(pVM, pVM->mm.s.pvHyperAreaGC, pVM->mm.s.cbHyperArea, 0 /fFlags/,
174	mmR3HyperRelocateCallback, NULL, "Hypervisor Memory Area");
175	if (RT_FAILURE(rc))
176	return rc;
177	pVM->mm.s.fPGMInitialized = true;
178
179	/*
180	* Do all the delayed mappings.
181	*/
182	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((uintptr_t)pVM->mm.s.pHyperHeapR3 + pVM->mm.s.offLookupHyper);
183	for (;;)
184	{
185	RTGCPTR GCPtr = pVM->mm.s.pvHyperAreaGC + pLookup->off;
186	unsigned cPages = pLookup->cb >> PAGE_SHIFT;
187	switch (pLookup->enmType)
188	{
189	case MMLOOKUPHYPERTYPE_LOCKED:
190	rc = mmR3MapLocked(pVM, pLookup->u.Locked.pLockedMem, GCPtr, 0, cPages, 0);
191	break;
192
193	case MMLOOKUPHYPERTYPE_HCPHYS:
194	rc = PGMMap(pVM, GCPtr, pLookup->u.HCPhys.HCPhys, pLookup->cb, 0);
195	break;
196
197	case MMLOOKUPHYPERTYPE_GCPHYS:
198	{
199	const RTGCPHYS GCPhys = pLookup->u.GCPhys.GCPhys;
200	const size_t cb = pLookup->cb;
201	for (unsigned off = 0; off < cb; off += PAGE_SIZE)
202	{
203	RTHCPHYS HCPhys;
204	rc = PGMPhysGCPhys2HCPhys(pVM, GCPhys + off, &HCPhys);
205	if (RT_FAILURE(rc))
206	break;
207	rc = PGMMap(pVM, GCPtr + off, HCPhys, PAGE_SIZE, 0);
208	if (RT_FAILURE(rc))
209	break;
210	}
211	break;
212	}
213
214	case MMLOOKUPHYPERTYPE_MMIO2:
215	{
216	const RTGCPHYS offEnd = pLookup->u.MMIO2.off + pLookup->cb;
217	for (RTGCPHYS offCur = pLookup->u.MMIO2.off; offCur < offEnd; offCur += PAGE_SIZE)
218	{
219	RTHCPHYS HCPhys;
220	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pLookup->u.MMIO2.pDevIns, pLookup->u.MMIO2.iRegion, offCur, &HCPhys);
221	if (RT_FAILURE(rc))
222	break;
223	rc = PGMMap(pVM, GCPtr + (offCur - pLookup->u.MMIO2.off), HCPhys, PAGE_SIZE, 0);
224	if (RT_FAILURE(rc))
225	break;
226	}
227	break;
228	}
229
230	case MMLOOKUPHYPERTYPE_DYNAMIC:
231	/* do nothing here since these are either fences or managed by someone else using PGM. */
232	break;
233
234	default:
235	AssertMsgFailed(("enmType=%d\n", pLookup->enmType));
236	break;
237	}
238
239	if (RT_FAILURE(rc))
240	{
241	AssertMsgFailed(("rc=%Rrc cb=%d off=%#RX32 enmType=%d pszDesc=%s\n",
242	rc, pLookup->cb, pLookup->off, pLookup->enmType, pLookup->pszDesc));
243	return rc;
244	}
245
246	/* next */
247	if (pLookup->offNext == (int32_t)NIL_OFFSET)
248	break;
249	pLookup = (PMMLOOKUPHYPER)((uintptr_t)pLookup + pLookup->offNext);
250	}
251
252	LogFlow(("MMR3HyperInitFinalize: returns VINF_SUCCESS\n"));
253	return VINF_SUCCESS;
254	}
255
256
257	/**
258	* Callback function which will be called when PGM is trying to find
259	* a new location for the mapping.
260	*
261	* The callback is called in two modes, 1) the check mode and 2) the relocate mode.
262	* In 1) the callback should say if it objects to a suggested new location. If it
263	* accepts the new location, it is called again for doing it's relocation.
264	*
265	*
266	* @returns true if the location is ok.
267	* @returns false if another location should be found.
268	* @param pVM The VM handle.
269	* @param GCPtrOld The old virtual address.
270	* @param GCPtrNew The new virtual address.
271	* @param enmMode Used to indicate the callback mode.
272	* @param pvUser User argument. Ignored.
273	* @remark The return value is no a failure indicator, it's an acceptance
274	* indicator. Relocation can not fail!
275	*/
276	static DECLCALLBACK(bool) mmR3HyperRelocateCallback(PVM pVM, RTGCPTR GCPtrOld, RTGCPTR GCPtrNew, PGMRELOCATECALL enmMode, void *pvUser)
277	{
278	switch (enmMode)
279	{
280	/*
281	* Verify location - all locations are good for us.
282	*/
283	case PGMRELOCATECALL_SUGGEST:
284	return true;
285
286	/*
287	* Execute the relocation.
288	*/
289	case PGMRELOCATECALL_RELOCATE:
290	{
291	/*
292	* Accepted!
293	*/
294	AssertMsg(GCPtrOld == pVM->mm.s.pvHyperAreaGC, ("GCPtrOld=%RGv pVM->mm.s.pvHyperAreaGC=%RGv\n", GCPtrOld, pVM->mm.s.pvHyperAreaGC));
295	Log(("Relocating the hypervisor from %RGv to %RGv\n", GCPtrOld, GCPtrNew));
296
297	/*
298	* Relocate the VM structure and ourselves.
299	*/
300	RTGCINTPTR offDelta = GCPtrNew - GCPtrOld;
301	pVM->pVMRC += offDelta;
302	for (uint32_t i = 0; i < pVM->cCPUs; i++)
303	pVM->aCpus[i].pVMRC = pVM->pVMRC;
304
305	pVM->mm.s.pvHyperAreaGC += offDelta;
306	Assert(pVM->mm.s.pvHyperAreaGC < _4G);
307	pVM->mm.s.pHyperHeapRC += offDelta;
308	pVM->mm.s.pHyperHeapR3->pbHeapRC += offDelta;
309	pVM->mm.s.pHyperHeapR3->pVMRC = pVM->pVMRC;
310
311	/*
312	* Relocate the rest.
313	*/
314	VMR3Relocate(pVM, offDelta);
315	return true;
316	}
317
318	default:
319	AssertMsgFailed(("Invalid relocation mode %d\n", enmMode));
320	}
321
322	return false;
323	}
324
325
326	/**
327	* Maps contiguous HC physical memory into the hypervisor region in the GC.
328	*
329	* @return VBox status code.
330	*
331	* @param pVM VM handle.
332	* @param pvR3 Ring-3 address of the memory. Must be page aligned!
333	* @param pvR0 Optional ring-0 address of the memory.
334	* @param HCPhys Host context physical address of the memory to be
335	* mapped. Must be page aligned!
336	* @param cb Size of the memory. Will be rounded up to nearest page.
337	* @param pszDesc Description.
338	* @param pGCPtr Where to store the GC address.
339	*/
340	VMMR3DECL(int) MMR3HyperMapHCPhys(PVM pVM, void pvR3, RTR0PTR pvR0, RTHCPHYS HCPhys, size_t cb, const char pszDesc, PRTGCPTR pGCPtr)
341	{
342	LogFlow(("MMR3HyperMapHCPhys: pvR3=%p pvR0=%p HCPhys=%RHp cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", pvR3, pvR0, HCPhys, (int)cb, pszDesc, pszDesc, pGCPtr));
343
344	/*
345	* Validate input.
346	*/
347	AssertReturn(RT_ALIGN_P(pvR3, PAGE_SIZE) == pvR3, VERR_INVALID_PARAMETER);
348	AssertReturn(RT_ALIGN_T(pvR0, PAGE_SIZE, RTR0PTR) == pvR0, VERR_INVALID_PARAMETER);
349	AssertReturn(RT_ALIGN_T(HCPhys, PAGE_SIZE, RTHCPHYS) == HCPhys, VERR_INVALID_PARAMETER);
350	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
351
352	/*
353	* Add the memory to the hypervisor area.
354	*/
355	uint32_t cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
356	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
357	RTGCPTR GCPtr;
358	PMMLOOKUPHYPER pLookup;
359	int rc = mmR3HyperMap(pVM, cbAligned, pszDesc, &GCPtr, &pLookup);
360	if (RT_SUCCESS(rc))
361	{
362	pLookup->enmType = MMLOOKUPHYPERTYPE_HCPHYS;
363	pLookup->u.HCPhys.pvR3 = pvR3;
364	pLookup->u.HCPhys.pvR0 = pvR0;
365	pLookup->u.HCPhys.HCPhys = HCPhys;
366
367	/*
368	* Update the page table.
369	*/
370	if (pVM->mm.s.fPGMInitialized)
371	rc = PGMMap(pVM, GCPtr, HCPhys, cbAligned, 0);
372	if (RT_SUCCESS(rc))
373	*pGCPtr = GCPtr;
374	}
375	return rc;
376	}
377
378
379	/**
380	* Maps contiguous GC physical memory into the hypervisor region in the GC.
381	*
382	* @return VBox status code.
383	*
384	* @param pVM VM handle.
385	* @param GCPhys Guest context physical address of the memory to be mapped. Must be page aligned!
386	* @param cb Size of the memory. Will be rounded up to nearest page.
387	* @param pszDesc Mapping description.
388	* @param pGCPtr Where to store the GC address.
389	*/
390	VMMR3DECL(int) MMR3HyperMapGCPhys(PVM pVM, RTGCPHYS GCPhys, size_t cb, const char *pszDesc, PRTGCPTR pGCPtr)
391	{
392	LogFlow(("MMR3HyperMapGCPhys: GCPhys=%RGp cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", GCPhys, (int)cb, pszDesc, pszDesc, pGCPtr));
393
394	/*
395	* Validate input.
396	*/
397	AssertReturn(RT_ALIGN_T(GCPhys, PAGE_SIZE, RTGCPHYS) == GCPhys, VERR_INVALID_PARAMETER);
398	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
399
400	/*
401	* Add the memory to the hypervisor area.
402	*/
403	cb = RT_ALIGN_Z(cb, PAGE_SIZE);
404	RTGCPTR GCPtr;
405	PMMLOOKUPHYPER pLookup;
406	int rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
407	if (RT_SUCCESS(rc))
408	{
409	pLookup->enmType = MMLOOKUPHYPERTYPE_GCPHYS;
410	pLookup->u.GCPhys.GCPhys = GCPhys;
411
412	/*
413	* Update the page table.
414	*/
415	for (unsigned off = 0; off < cb; off += PAGE_SIZE)
416	{
417	RTHCPHYS HCPhys;
418	rc = PGMPhysGCPhys2HCPhys(pVM, GCPhys + off, &HCPhys);
419	AssertRC(rc);
420	if (RT_FAILURE(rc))
421	{
422	AssertMsgFailed(("rc=%Rrc GCPhys=%RGp off=%#x %s\n", rc, GCPhys, off, pszDesc));
423	break;
424	}
425	if (pVM->mm.s.fPGMInitialized)
426	{
427	rc = PGMMap(pVM, GCPtr + off, HCPhys, PAGE_SIZE, 0);
428	AssertRC(rc);
429	if (RT_FAILURE(rc))
430	{
431	AssertMsgFailed(("rc=%Rrc GCPhys=%RGp off=%#x %s\n", rc, GCPhys, off, pszDesc));
432	break;
433	}
434	}
435	}
436
437	if (RT_SUCCESS(rc) && pGCPtr)
438	*pGCPtr = GCPtr;
439	}
440	return rc;
441	}
442
443
444	/**
445	* Maps a portion of an MMIO2 region into the hypervisor region.
446	*
447	* Callers of this API must never deregister the MMIO2 region before the
448	* VM is powered off. If this becomes a requirement MMR3HyperUnmapMMIO2
449	* API will be needed to perform cleanups.
450	*
451	* @return VBox status code.
452	*
453	* @param pVM Pointer to the shared VM structure.
454	* @param pDevIns The device owning the MMIO2 memory.
455	* @param iRegion The region.
456	* @param off The offset into the region. Will be rounded down to closest page boundrary.
457	* @param cb The number of bytes to map. Will be rounded up to the closest page boundrary.
458	* @param pszDesc Mapping description.
459	* @param pRCPtr Where to store the RC address.
460	*/
461	VMMR3DECL(int) MMR3HyperMapMMIO2(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion, RTGCPHYS off, RTGCPHYS cb,
462	const char *pszDesc, PRTRCPTR pRCPtr)
463	{
464	LogFlow(("MMR3HyperMapMMIO2: pDevIns=%p iRegion=%#x off=%RGp cb=%RGp pszDesc=%p:{%s} pRCPtr=%p\n",
465	pDevIns, iRegion, off, cb, pszDesc, pszDesc, pRCPtr));
466	int rc;
467
468	/*
469	* Validate input.
470	*/
471	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
472	AssertReturn(off + cb > off, VERR_INVALID_PARAMETER);
473	uint32_t const offPage = off & PAGE_OFFSET_MASK;
474	off &= ~(RTGCPHYS)PAGE_OFFSET_MASK;
475	cb += offPage;
476	cb = RT_ALIGN_Z(cb, PAGE_SIZE);
477	const RTGCPHYS offEnd = off + cb;
478	AssertReturn(offEnd > off, VERR_INVALID_PARAMETER);
479	for (RTGCPHYS offCur = off; offCur < offEnd; offCur += PAGE_SIZE)
480	{
481	RTHCPHYS HCPhys;
482	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pDevIns, iRegion, offCur, &HCPhys);
483	AssertMsgRCReturn(rc, ("rc=%Rrc - iRegion=%d off=%RGp\n", rc, iRegion, off), rc);
484	}
485
486	/*
487	* Add the memory to the hypervisor area.
488	*/
489	RTGCPTR GCPtr;
490	PMMLOOKUPHYPER pLookup;
491	rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
492	if (RT_SUCCESS(rc))
493	{
494	pLookup->enmType = MMLOOKUPHYPERTYPE_MMIO2;
495	pLookup->u.MMIO2.pDevIns = pDevIns;
496	pLookup->u.MMIO2.iRegion = iRegion;
497	pLookup->u.MMIO2.off = off;
498
499	/*
500	* Update the page table.
501	*/
502	if (pVM->mm.s.fPGMInitialized)
503	{
504	for (RTGCPHYS offCur = off; offCur < offEnd; offCur += PAGE_SIZE)
505	{
506	RTHCPHYS HCPhys;
507	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pDevIns, iRegion, offCur, &HCPhys);
508	AssertRCReturn(rc, VERR_INTERNAL_ERROR);
509	rc = PGMMap(pVM, GCPtr + (offCur - off), HCPhys, PAGE_SIZE, 0);
510	if (RT_FAILURE(rc))
511	{
512	AssertMsgFailed(("rc=%Rrc offCur=%RGp %s\n", rc, offCur, pszDesc));
513	break;
514	}
515	}
516	}
517
518	if (RT_SUCCESS(rc))
519	{
520	GCPtr \|= offPage;
521	*pRCPtr = GCPtr;
522	AssertLogRelReturn(*pRCPtr == GCPtr, VERR_INTERNAL_ERROR);
523	}
524	}
525	return rc;
526	}
527
528
529	/**
530	* Maps locked R3 virtual memory into the hypervisor region in the GC.
531	*
532	* @return VBox status code.
533	*
534	* @param pVM VM handle.
535	* @param pvR3 The ring-3 address of the memory, must be page aligned.
536	* @param pvR0 The ring-0 address of the memory, must be page aligned. (optional)
537	* @param cPages The number of pages.
538	* @param paPages The page descriptors.
539	* @param pszDesc Mapping description.
540	* @param pGCPtr Where to store the GC address corresponding to pvR3.
541	*/
542	VMMR3DECL(int) MMR3HyperMapPages(PVM pVM, void pvR3, RTR0PTR pvR0, size_t cPages, PCSUPPAGE paPages, const char pszDesc, PRTGCPTR pGCPtr)
543	{
544	LogFlow(("MMR3HyperMapPages: pvR3=%p pvR0=%p cPages=%zu paPages=%p pszDesc=%p:{%s} pGCPtr=%p\n",
545	pvR3, pvR0, cPages, paPages, pszDesc, pszDesc, pGCPtr));
546
547	/*
548	* Validate input.
549	*/
550	AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
551	AssertPtrReturn(paPages, VERR_INVALID_POINTER);
552	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
553	AssertReturn(cPages <= VBOX_MAX_ALLOC_PAGE_COUNT, VERR_PAGE_COUNT_OUT_OF_RANGE);
554	AssertPtrReturn(pszDesc, VERR_INVALID_POINTER);
555	AssertReturn(*pszDesc, VERR_INVALID_PARAMETER);
556	AssertPtrReturn(pGCPtr, VERR_INVALID_PARAMETER);
557
558	/*
559	* Add the memory to the hypervisor area.
560	*/
561	RTGCPTR GCPtr;
562	PMMLOOKUPHYPER pLookup;
563	int rc = mmR3HyperMap(pVM, cPages << PAGE_SHIFT, pszDesc, &GCPtr, &pLookup);
564	if (RT_SUCCESS(rc))
565	{
566	/*
567	* Create a locked memory record and tell PGM about this.
568	*/
569	PMMLOCKEDMEM pLockedMem = (PMMLOCKEDMEM)MMR3HeapAlloc(pVM, MM_TAG_MM, RT_OFFSETOF(MMLOCKEDMEM, aPhysPages[cPages]));
570	if (pLockedMem)
571	{
572	pLockedMem->pv = pvR3;
573	pLockedMem->cb = cPages << PAGE_SHIFT;
574	pLockedMem->eType = MM_LOCKED_TYPE_HYPER_PAGES;
575	memset(&pLockedMem->u, 0, sizeof(pLockedMem->u));
576	for (size_t i = 0; i < cPages; i++)
577	{
578	AssertReleaseReturn(paPages[i].Phys != 0 && paPages[i].Phys != NIL_RTHCPHYS && !(paPages[i].Phys & PAGE_OFFSET_MASK), VERR_INTERNAL_ERROR);
579	pLockedMem->aPhysPages[i].Phys = paPages[i].Phys;
580	pLockedMem->aPhysPages[i].uReserved = (RTHCUINTPTR)pLockedMem;
581	}
582
583	/* map the stuff into guest address space. */
584	if (pVM->mm.s.fPGMInitialized)
585	rc = mmR3MapLocked(pVM, pLockedMem, GCPtr, 0, ~(size_t)0, 0);
586	if (RT_SUCCESS(rc))
587	{
588	pLookup->enmType = MMLOOKUPHYPERTYPE_LOCKED;
589	pLookup->u.Locked.pvR3 = pvR3;
590	pLookup->u.Locked.pvR0 = pvR0;
591	pLookup->u.Locked.pLockedMem = pLockedMem;
592
593	/* done. */
594	*pGCPtr = GCPtr;
595	return rc;
596	}
597	/* Don't care about failure clean, we're screwed if this fails anyway. */
598	}
599	}
600
601	return rc;
602	}
603
604
605	/**
606	* Reserves a hypervisor memory area.
607	* Most frequent usage is fence pages and dynamically mappings like the guest PD and PDPT.
608	*
609	* @return VBox status code.
610	*
611	* @param pVM VM handle.
612	* @param cb Size of the memory. Will be rounded up to nearest page.
613	* @param pszDesc Mapping description.
614	* @param pGCPtr Where to store the assigned GC address. Optional.
615	*/
616	VMMR3DECL(int) MMR3HyperReserve(PVM pVM, unsigned cb, const char *pszDesc, PRTGCPTR pGCPtr)
617	{
618	LogFlow(("MMR3HyperMapHCRam: cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", (int)cb, pszDesc, pszDesc, pGCPtr));
619
620	/*
621	* Validate input.
622	*/
623	if ( cb <= 0
624	\|\| !pszDesc
625	\|\| !*pszDesc)
626	{
627	AssertMsgFailed(("Invalid parameter\n"));
628	return VERR_INVALID_PARAMETER;
629	}
630
631	/*
632	* Add the memory to the hypervisor area.
633	*/
634	RTGCPTR GCPtr;
635	PMMLOOKUPHYPER pLookup;
636	int rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
637	if (RT_SUCCESS(rc))
638	{
639	pLookup->enmType = MMLOOKUPHYPERTYPE_DYNAMIC;
640	if (pGCPtr)
641	*pGCPtr = GCPtr;
642	return VINF_SUCCESS;
643	}
644	return rc;
645	}
646
647
648	/**
649	* Adds memory to the hypervisor memory arena.
650	*
651	* @return VBox status code.
652	* @param pVM The VM handle.
653	* @param cb Size of the memory. Will be rounded up to neares page.
654	* @param pszDesc The description of the memory.
655	* @param pGCPtr Where to store the GC address.
656	* @param ppLookup Where to store the pointer to the lookup record.
657	* @remark We assume the threading structure of VBox imposes natural
658	* serialization of most functions, this one included.
659	*/
660	static int mmR3HyperMap(PVM pVM, const size_t cb, const char pszDesc, PRTGCPTR pGCPtr, PMMLOOKUPHYPER ppLookup)
661	{
662	/*
663	* Validate input.
664	*/
665	const uint32_t cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
666	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
667	if (pVM->mm.s.offHyperNextStatic + cbAligned >= pVM->mm.s.cbHyperArea) /* don't use the last page, it's a fence. */
668	{
669	AssertMsgFailed(("Out of static mapping space in the HMA! offHyperAreaGC=%x cbAligned=%x cbHyperArea=%x\n",
670	pVM->mm.s.offHyperNextStatic, cbAligned, pVM->mm.s.cbHyperArea));
671	return VERR_NO_MEMORY;
672	}
673
674	/*
675	* Allocate lookup record.
676	*/
677	PMMLOOKUPHYPER pLookup;
678	int rc = MMHyperAlloc(pVM, sizeof(pLookup), 1, MM_TAG_MM, (void *)&pLookup);
679	if (RT_SUCCESS(rc))
680	{
681	/*
682	* Initialize it and insert it.
683	*/
684	pLookup->offNext = pVM->mm.s.offLookupHyper;
685	pLookup->cb = cbAligned;
686	pLookup->off = pVM->mm.s.offHyperNextStatic;
687	pVM->mm.s.offLookupHyper = (uint8_t )pLookup - (uint8_t )pVM->mm.s.pHyperHeapR3;
688	if (pLookup->offNext != (int32_t)NIL_OFFSET)
689	pLookup->offNext -= pVM->mm.s.offLookupHyper;
690	pLookup->enmType = MMLOOKUPHYPERTYPE_INVALID;
691	memset(&pLookup->u, 0xff, sizeof(pLookup->u));
692	pLookup->pszDesc = pszDesc;
693
694	/* Mapping. */
695	*pGCPtr = pVM->mm.s.pvHyperAreaGC + pVM->mm.s.offHyperNextStatic;
696	pVM->mm.s.offHyperNextStatic += cbAligned;
697
698	/* Return pointer. */
699	*ppLookup = pLookup;
700	}
701
702	AssertRC(rc);
703	LogFlow(("mmR3HyperMap: returns %Rrc pGCPtr=%RGv\n", rc, pGCPtr));
704	return rc;
705	}
706
707
708	/**
709	* Allocates a new heap.
710	*
711	* @returns VBox status code.
712	* @param pVM The VM handle.
713	* @param cb The size of the new heap.
714	* @param ppHeap Where to store the heap pointer on successful return.
715	* @param pR0PtrHeap Where to store the ring-0 address of the heap on
716	* success.
717	*/
718	static int mmR3HyperHeapCreate(PVM pVM, const size_t cb, PMMHYPERHEAP *ppHeap, PRTR0PTR pR0PtrHeap)
719	{
720	/*
721	* Allocate the hypervisor heap.
722	*/
723	const uint32_t cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
724	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
725	uint32_t const cPages = cbAligned >> PAGE_SHIFT;
726	PSUPPAGE paPages = (PSUPPAGE)MMR3HeapAlloc(pVM, MM_TAG_MM, cPages * sizeof(paPages[0]));
727	if (!paPages)
728	return VERR_NO_MEMORY;
729	void *pv;
730	RTR0PTR pvR0 = NIL_RTR0PTR;
731	int rc = SUPR3PageAllocEx(cPages,
732	0 /fFlags/,
733	&pv,
734	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
735	VMMIsHwVirtExtForced(pVM) ? &pvR0 : NULL,
736	#else
737	NULL,
738	#endif
739	paPages);
740	if (RT_SUCCESS(rc))
741	{
742	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
743	if (!VMMIsHwVirtExtForced(pVM))
744	pvR0 = NIL_RTR0PTR;
745	#else
746	pvR0 = (uintptr_t)pv;
747	#endif
748	memset(pv, 0, cbAligned);
749
750	/*
751	* Initialize the heap and first free chunk.
752	*/
753	PMMHYPERHEAP pHeap = (PMMHYPERHEAP)pv;
754	pHeap->u32Magic = MMHYPERHEAP_MAGIC;
755	pHeap->pbHeapR3 = (uint8_t *)pHeap + MMYPERHEAP_HDR_SIZE;
756	pHeap->pbHeapR0 = pvR0 != NIL_RTR0PTR ? pvR0 + MMYPERHEAP_HDR_SIZE : NIL_RTR0PTR;
757	//pHeap->pbHeapRC = 0; // set by mmR3HyperHeapMap()
758	pHeap->pVMR3 = pVM;
759	pHeap->pVMR0 = pVM->pVMR0;
760	pHeap->pVMRC = pVM->pVMRC;
761	pHeap->cbHeap = cbAligned - MMYPERHEAP_HDR_SIZE;
762	pHeap->cbFree = pHeap->cbHeap - sizeof(MMHYPERCHUNK);
763	//pHeap->offFreeHead = 0;
764	//pHeap->offFreeTail = 0;
765	pHeap->offPageAligned = pHeap->cbHeap;
766	//pHeap->HyperHeapStatTree = 0;
767	pHeap->paPages = paPages;
768
769	PMMHYPERCHUNKFREE pFree = (PMMHYPERCHUNKFREE)pHeap->pbHeapR3;
770	pFree->cb = pHeap->cbFree;
771	//pFree->core.offNext = 0;
772	MMHYPERCHUNK_SET_TYPE(&pFree->core, MMHYPERCHUNK_FLAGS_FREE);
773	pFree->core.offHeap = -(int32_t)MMYPERHEAP_HDR_SIZE;
774	//pFree->offNext = 0;
775	//pFree->offPrev = 0;
776
777	STAMR3Register(pVM, &pHeap->cbHeap, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, "/MM/HyperHeap/cbHeap", STAMUNIT_BYTES, "The heap size.");
778	STAMR3Register(pVM, &pHeap->cbFree, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, "/MM/HyperHeap/cbFree", STAMUNIT_BYTES, "The free space.");
779
780	*ppHeap = pHeap;
781	*pR0PtrHeap = pvR0;
782	return VINF_SUCCESS;
783	}
784	AssertMsgFailed(("SUPR3PageAllocEx(%d,,,,) -> %Rrc\n", cbAligned >> PAGE_SHIFT, rc));
785
786	*ppHeap = NULL;
787	return rc;
788	}
789
790
791	/**
792	* Allocates a new heap.
793	*/
794	static int mmR3HyperHeapMap(PVM pVM, PMMHYPERHEAP pHeap, PRTGCPTR ppHeapGC)
795	{
796	Assert(RT_ALIGN_Z(pHeap->cbHeap + MMYPERHEAP_HDR_SIZE, PAGE_SIZE) == pHeap->cbHeap + MMYPERHEAP_HDR_SIZE);
797	Assert(pHeap->paPages);
798	int rc = MMR3HyperMapPages(pVM,
799	pHeap,
800	pHeap->pbHeapR0 != NIL_RTR0PTR ? pHeap->pbHeapR0 - MMYPERHEAP_HDR_SIZE : NIL_RTR0PTR,
801	(pHeap->cbHeap + MMYPERHEAP_HDR_SIZE) >> PAGE_SHIFT,
802	pHeap->paPages,
803	"Heap", ppHeapGC);
804	if (RT_SUCCESS(rc))
805	{
806	pHeap->pVMRC = pVM->pVMRC;
807	pHeap->pbHeapRC = *ppHeapGC + MMYPERHEAP_HDR_SIZE;
808	/* Reserve a page for fencing. */
809	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
810
811	/* We won't need these any more. */
812	MMR3HeapFree(pHeap->paPages);
813	pHeap->paPages = NULL;
814	}
815	return rc;
816	}
817
818
819	#if 0
820	/**
821	* Destroys a heap.
822	*/
823	static int mmR3HyperHeapDestroy(PVM pVM, PMMHYPERHEAP pHeap)
824	{
825	/* all this is dealt with when unlocking and freeing locked memory. */
826	}
827	#endif
828
829
830	/**
831	* Allocates memory in the Hypervisor (GC VMM) area which never will
832	* be freed and doesn't have any offset based relation to other heap blocks.
833	*
834	* The latter means that two blocks allocated by this API will not have the
835	* same relative position to each other in GC and HC. In short, never use
836	* this API for allocating nodes for an offset based AVL tree!
837	*
838	* The returned memory is of course zeroed.
839	*
840	* @returns VBox status code.
841	* @param pVM The VM to operate on.
842	* @param cb Number of bytes to allocate.
843	* @param uAlignment Required memory alignment in bytes.
844	* Values are 0,8,16,32 and PAGE_SIZE.
845	* 0 -> default alignment, i.e. 8 bytes.
846	* @param enmTag The statistics tag.
847	* @param ppv Where to store the address to the allocated
848	* memory.
849	* @remark This is assumed not to be used at times when serialization is required.
850	*/
851	VMMDECL(int) MMR3HyperAllocOnceNoRel(PVM pVM, size_t cb, unsigned uAlignment, MMTAG enmTag, void **ppv)
852	{
853	AssertMsg(cb >= 8, ("Hey! Do you really mean to allocate less than 8 bytes?! cb=%d\n", cb));
854
855	/*
856	* Choose between allocating a new chunk of HMA memory
857	* and the heap. We will only do BIG allocations from HMA and
858	* only at creation time.
859	*/
860	if ( ( cb < _64K
861	&& ( uAlignment != PAGE_SIZE
862	\|\| cb < 48*_1K))
863	\|\| VMR3GetState(pVM) != VMSTATE_CREATING)
864	{
865	int rc = MMHyperAlloc(pVM, cb, uAlignment, enmTag, ppv);
866	if ( rc != VERR_MM_HYPER_NO_MEMORY
867	\|\| cb <= 8*_1K)
868	{
869	Log2(("MMR3HyperAllocOnceNoRel: cb=%#zx uAlignment=%#x returns %Rrc and *ppv=%p\n",
870	cb, uAlignment, rc, *ppv));
871	return rc;
872	}
873	}
874
875	/*
876	* Validate alignment.
877	*/
878	switch (uAlignment)
879	{
880	case 0:
881	case 8:
882	case 16:
883	case 32:
884	case PAGE_SIZE:
885	break;
886	default:
887	AssertMsgFailed(("Invalid alignment %u\n", uAlignment));
888	return VERR_INVALID_PARAMETER;
889	}
890
891	/*
892	* Allocate the pages and map them into HMA space.
893	*/
894	uint32_t const cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
895	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
896	uint32_t const cPages = cbAligned >> PAGE_SHIFT;
897	PSUPPAGE paPages = (PSUPPAGE)RTMemTmpAlloc(cPages * sizeof(paPages[0]));
898	if (!paPages)
899	return VERR_NO_TMP_MEMORY;
900	void *pvPages;
901	RTR0PTR pvR0 = NIL_RTR0PTR;
902	int rc = SUPR3PageAllocEx(cPages,
903	0 /fFlags/,
904	&pvPages,
905	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
906	VMMIsHwVirtExtForced(pVM) ? &pvR0 : NULL,
907	#else
908	NULL,
909	#endif
910	paPages);
911	if (RT_SUCCESS(rc))
912	{
913	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
914	if (!VMMIsHwVirtExtForced(pVM))
915	pvR0 = NIL_RTR0PTR;
916	#else
917	pvR0 = (uintptr_t)pvPages;
918	#endif
919	memset(pvPages, 0, cbAligned);
920
921	RTGCPTR GCPtr;
922	rc = MMR3HyperMapPages(pVM,
923	pvPages,
924	pvR0,
925	cPages,
926	paPages,
927	MMR3HeapAPrintf(pVM, MM_TAG_MM, "alloc once (%s)", mmR3GetTagName(enmTag)),
928	&GCPtr);
929	if (RT_SUCCESS(rc))
930	{
931	*ppv = pvPages;
932	Log2(("MMR3HyperAllocOnceNoRel: cbAligned=%#x uAlignment=%#x returns VINF_SUCCESS and *ppv=%p\n",
933	cbAligned, uAlignment, *ppv));
934	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
935	return rc;
936	}
937	AssertMsgFailed(("Failed to allocate %zd bytes! %Rrc\n", cbAligned, rc));
938	SUPR3PageFreeEx(pvPages, cPages);
939
940
941	/*
942	* HACK ALERT! Try allocate it off the heap so that we don't freak
943	* out during vga/vmmdev mmio2 allocation with certain ram sizes.
944	*/
945	/** @todo make a proper fix for this so we will never end up in this kind of situation! */
946	Log(("MMR3HyperAllocOnceNoRel: MMR3HyperMapHCRam failed with rc=%Rrc, try MMHyperAlloc(,%#x,,) instead\n", rc, cb));
947	int rc2 = MMHyperAlloc(pVM, cb, uAlignment, enmTag, ppv);
948	if (RT_SUCCESS(rc2))
949	{
950	Log2(("MMR3HyperAllocOnceNoRel: cb=%#x uAlignment=%#x returns %Rrc and *ppv=%p\n",
951	cb, uAlignment, rc, *ppv));
952	return rc;
953	}
954	}
955	else
956	AssertMsgFailed(("Failed to allocate %zd bytes! %Rrc\n", cbAligned, rc));
957
958	if (rc == VERR_NO_MEMORY)
959	rc = VERR_MM_HYPER_NO_MEMORY;
960	LogRel(("MMR3HyperAllocOnceNoRel: cb=%#zx uAlignment=%#x returns %Rrc\n", cb, uAlignment, rc));
961	return rc;
962	}
963
964
965	/**
966	* Convert hypervisor HC virtual address to HC physical address.
967	*
968	* @returns HC physical address.
969	* @param pVM VM Handle
970	* @param pvR3 Host context virtual address.
971	*/
972	VMMR3DECL(RTHCPHYS) MMR3HyperHCVirt2HCPhys(PVM pVM, void *pvR3)
973	{
974	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((uint8_t *)pVM->mm.s.pHyperHeapR3 + pVM->mm.s.offLookupHyper);
975	for (;;)
976	{
977	switch (pLookup->enmType)
978	{
979	case MMLOOKUPHYPERTYPE_LOCKED:
980	{
981	unsigned off = (uint8_t )pvR3 - (uint8_t )pLookup->u.Locked.pvR3;
982	if (off < pLookup->cb)
983	return (pLookup->u.Locked.pLockedMem->aPhysPages[off >> PAGE_SHIFT].Phys & X86_PTE_PAE_PG_MASK) \| (off & PAGE_OFFSET_MASK);
984	break;
985	}
986
987	case MMLOOKUPHYPERTYPE_HCPHYS:
988	{
989	unsigned off = (uint8_t )pvR3 - (uint8_t )pLookup->u.HCPhys.pvR3;
990	if (off < pLookup->cb)
991	return pLookup->u.HCPhys.HCPhys + off;
992	break;
993	}
994
995	case MMLOOKUPHYPERTYPE_GCPHYS:
996	case MMLOOKUPHYPERTYPE_MMIO2:
997	case MMLOOKUPHYPERTYPE_DYNAMIC:
998	/* can (or don't want to) convert these kind of records. */
999	break;
1000
1001	default:
1002	AssertMsgFailed(("enmType=%d\n", pLookup->enmType));
1003	break;
1004	}
1005
1006	/* next */
1007	if ((unsigned)pLookup->offNext == NIL_OFFSET)
1008	break;
1009	pLookup = (PMMLOOKUPHYPER)((uint8_t *)pLookup + pLookup->offNext);
1010	}
1011
1012	AssertMsgFailed(("pvR3=%p is not inside the hypervisor memory area!\n", pvR3));
1013	return NIL_RTHCPHYS;
1014	}
1015
1016
1017	#if 0 /* unused, not implemented */
1018	/**
1019	* Convert hypervisor HC physical address to HC virtual address.
1020	*
1021	* @returns HC virtual address.
1022	* @param pVM VM Handle
1023	* @param HCPhys Host context physical address.
1024	*/
1025	VMMR3DECL(void *) MMR3HyperHCPhys2HCVirt(PVM pVM, RTHCPHYS HCPhys)
1026	{
1027	void *pv;
1028	int rc = MMR3HyperHCPhys2HCVirtEx(pVM, HCPhys, &pv);
1029	if (RT_SUCCESS(rc))
1030	return pv;
1031	AssertMsgFailed(("Invalid address HCPhys=%x rc=%d\n", HCPhys, rc));
1032	return NULL;
1033	}
1034
1035
1036	/**
1037	* Convert hypervisor HC physical address to HC virtual address.
1038	*
1039	* @returns VBox status.
1040	* @param pVM VM Handle
1041	* @param HCPhys Host context physical address.
1042	* @param ppv Where to store the HC virtual address.
1043	*/
1044	VMMR3DECL(int) MMR3HyperHCPhys2HCVirtEx(PVM pVM, RTHCPHYS HCPhys, void **ppv)
1045	{
1046	/*
1047	* Linear search.
1048	*/
1049	/** @todo implement when actually used. */
1050	return VERR_INVALID_POINTER;
1051	}
1052	#endif /* unused, not implemented */
1053
1054
1055	/**
1056	* Read hypervisor memory from GC virtual address.
1057	*
1058	* @returns VBox status.
1059	* @param pVM VM handle.
1060	* @param pvDst Destination address (HC of course).
1061	* @param GCPtr GC virtual address.
1062	* @param cb Number of bytes to read.
1063	*
1064	* @remarks For DBGF only.
1065	*/
1066	VMMR3DECL(int) MMR3HyperReadGCVirt(PVM pVM, void *pvDst, RTGCPTR GCPtr, size_t cb)
1067	{
1068	if (GCPtr - pVM->mm.s.pvHyperAreaGC >= pVM->mm.s.cbHyperArea)
1069	return VERR_INVALID_PARAMETER;
1070	return PGMR3MapRead(pVM, pvDst, GCPtr, cb);
1071	}
1072
1073
1074	/**
1075	* Info handler for 'hma', it dumps the list of lookup records for the hypervisor memory area.
1076	*
1077	* @param pVM The VM handle.
1078	* @param pHlp Callback functions for doing output.
1079	* @param pszArgs Argument string. Optional and specific to the handler.
1080	*/
1081	static DECLCALLBACK(void) mmR3HyperInfoHma(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
1082	{
1083	pHlp->pfnPrintf(pHlp, "Hypervisor Memory Area (HMA) Layout: Base %RGv, 0x%08x bytes\n",
1084	pVM->mm.s.pvHyperAreaGC, pVM->mm.s.cbHyperArea);
1085
1086	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((uint8_t *)pVM->mm.s.pHyperHeapR3 + pVM->mm.s.offLookupHyper);
1087	for (;;)
1088	{
1089	switch (pLookup->enmType)
1090	{
1091	case MMLOOKUPHYPERTYPE_LOCKED:
1092	pHlp->pfnPrintf(pHlp, "%RGv-%RGv %RHv %RHv LOCKED %-*s %s\n",
1093	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1094	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1095	pLookup->u.Locked.pvR3,
1096	pLookup->u.Locked.pvR0,
1097	sizeof(RTHCPTR) * 2,
1098	pLookup->u.Locked.pLockedMem->eType == MM_LOCKED_TYPE_HYPER_NOFREE ? "nofree"
1099	: pLookup->u.Locked.pLockedMem->eType == MM_LOCKED_TYPE_HYPER ? "autofree"
1100	: pLookup->u.Locked.pLockedMem->eType == MM_LOCKED_TYPE_HYPER_PAGES ? "pages"
1101	: pLookup->u.Locked.pLockedMem->eType == MM_LOCKED_TYPE_PHYS ? "gstphys"
1102	: "??",
1103	pLookup->pszDesc);
1104	break;
1105
1106	case MMLOOKUPHYPERTYPE_HCPHYS:
1107	pHlp->pfnPrintf(pHlp, "%RGv-%RGv %RHv %RHv HCPHYS %RHp %s\n",
1108	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1109	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1110	pLookup->u.HCPhys.pvR3,
1111	pLookup->u.HCPhys.pvR0,
1112	pLookup->u.HCPhys.HCPhys,
1113	pLookup->pszDesc);
1114	break;
1115
1116	case MMLOOKUPHYPERTYPE_GCPHYS:
1117	pHlp->pfnPrintf(pHlp, "%RGv-%RGv %s GCPHYS %RGp%s %s\n",
1118	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1119	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1120	sizeof(RTHCPTR) * 2 * 2 + 1, "",
1121	pLookup->u.GCPhys.GCPhys, RT_ABS((int)(sizeof(RTHCPHYS) - sizeof(RTGCPHYS))) * 2, "",
1122	pLookup->pszDesc);
1123	break;
1124
1125	case MMLOOKUPHYPERTYPE_MMIO2:
1126	pHlp->pfnPrintf(pHlp, "%RGv-%RGv %s MMIO2 %RGp%s %s\n",
1127	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1128	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1129	sizeof(RTHCPTR) * 2 * 2 + 1, "",
1130	pLookup->u.MMIO2.off, RT_ABS((int)(sizeof(RTHCPHYS) - sizeof(RTGCPHYS))) * 2, "",
1131	pLookup->pszDesc);
1132	break;
1133
1134	case MMLOOKUPHYPERTYPE_DYNAMIC:
1135	pHlp->pfnPrintf(pHlp, "%RGv-%RGv %s DYNAMIC %s %s\n",
1136	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1137	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1138	sizeof(RTHCPTR) * 2 * 2 + 1, "",
1139	sizeof(RTHCPTR) * 2, "",
1140	pLookup->pszDesc);
1141	break;
1142
1143	default:
1144	AssertMsgFailed(("enmType=%d\n", pLookup->enmType));
1145	break;
1146	}
1147
1148	/* next */
1149	if ((unsigned)pLookup->offNext == NIL_OFFSET)
1150	break;
1151	pLookup = (PMMLOOKUPHYPER)((uint8_t *)pLookup + pLookup->offNext);
1152	}
1153	}
1154

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source: vbox/trunk/src/VBox/VMM/MMHyper.cpp@ 18709

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