MMHyper.cpp@ 19663

Last change on this file since 19663 was 19663, checked in by vboxsync, 16 years ago
Protect the MM hypervisor heap with a critical section.
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File size: 40.5 KB

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1	/* $Id: MMHyper.cpp 19663 2009-05-13 15:06:00Z 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.215389.xyz. 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	*/
78	uint32_t cbHyperHeap;
79	int rc = CFGMR3QueryU32(CFGMR3GetChild(CFGMR3GetRoot(pVM), "MM"), "cbHyperHeap", &cbHyperHeap);
80	if (rc == VERR_CFGM_NO_PARENT \|\| rc == VERR_CFGM_VALUE_NOT_FOUND)
81	cbHyperHeap = VMMIsHwVirtExtForced(pVM)
82	? 640*_1K
83	: 1280*_1K;
84	else
85	AssertLogRelRCReturn(rc, rc);
86	cbHyperHeap = RT_ALIGN_32(cbHyperHeap, PAGE_SIZE);
87	LogRel(("MM: cbHyperHeap=%#x (%u)\n", cbHyperHeap, cbHyperHeap));
88
89	/*
90	* Allocate the hypervisor heap.
91	*
92	* (This must be done before we start adding memory to the
93	* hypervisor static area because lookup records are allocated from it.)
94	*/
95	rc = mmR3HyperHeapCreate(pVM, cbHyperHeap, &pVM->mm.s.pHyperHeapR3, &pVM->mm.s.pHyperHeapR0);
96	if (RT_SUCCESS(rc))
97	{
98	/*
99	* Make a small head fence to fend of accidental sequential access.
100	*/
101	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
102
103	/*
104	* Map the VM structure into the hypervisor space.
105	*/
106	AssertRelease(pVM->cbSelf == RT_UOFFSETOF(VM, aCpus[pVM->cCPUs]));
107	RTGCPTR GCPtr;
108	rc = MMR3HyperMapPages(pVM, pVM, pVM->pVMR0, RT_ALIGN_Z(pVM->cbSelf, PAGE_SIZE) >> PAGE_SHIFT, pVM->paVMPagesR3, "VM", &GCPtr);
109	if (RT_SUCCESS(rc))
110	{
111	pVM->pVMRC = (RTRCPTR)GCPtr;
112	for (uint32_t i = 0; i < pVM->cCPUs; i++)
113	pVM->aCpus[i].pVMRC = pVM->pVMRC;
114
115	/* Reserve a page for fencing. */
116	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
117
118	/*
119	* Map the heap into the hypervisor space.
120	*/
121	rc = mmR3HyperHeapMap(pVM, pVM->mm.s.pHyperHeapR3, &GCPtr);
122	if (RT_SUCCESS(rc))
123	{
124	pVM->mm.s.pHyperHeapRC = (RTRCPTR)GCPtr;
125	Assert(pVM->mm.s.pHyperHeapRC == GCPtr);
126
127	/*
128	* Register info handlers.
129	*/
130	DBGFR3InfoRegisterInternal(pVM, "hma", "Show the layout of the Hypervisor Memory Area.", mmR3HyperInfoHma);
131
132	LogFlow(("mmR3HyperInit: returns VINF_SUCCESS\n"));
133	return VINF_SUCCESS;
134	}
135	/* Caller will do proper cleanup. */
136	}
137	}
138
139	LogFlow(("mmR3HyperInit: returns %Rrc\n", rc));
140	return rc;
141	}
142
143
144	/**
145	* Cleans up the hypervisor heap.
146	*
147	* @returns VBox status.
148	*/
149	int mmR3HyperTerm(PVM pVM)
150	{
151	if (pVM->mm.s.pHyperHeapR3)
152	PDMR3CritSectDelete(&pVM->mm.s.pHyperHeapR3->Lock);
153
154	return VINF_SUCCESS;
155	}
156
157
158	/**
159	* Finalizes the HMA mapping.
160	*
161	* This is called later during init, most (all) HMA allocations should be done
162	* by the time this function is called.
163	*
164	* @returns VBox status.
165	*/
166	VMMR3DECL(int) MMR3HyperInitFinalize(PVM pVM)
167	{
168	LogFlow(("MMR3HyperInitFinalize:\n"));
169
170	/*
171	* Initialize the hyper heap critical section.
172	*/
173	int rc = PDMR3CritSectInit(pVM, &pVM->mm.s.pHyperHeapR3->Lock, "MM-HYPER");
174	AssertRC(rc);
175
176	/*
177	* Adjust and create the HMA mapping.
178	*/
179	while ((RTINT)pVM->mm.s.offHyperNextStatic + 64*_1K < (RTINT)pVM->mm.s.cbHyperArea - _4M)
180	pVM->mm.s.cbHyperArea -= _4M;
181	rc = PGMR3MapPT(pVM, pVM->mm.s.pvHyperAreaGC, pVM->mm.s.cbHyperArea, 0 /fFlags/,
182	mmR3HyperRelocateCallback, NULL, "Hypervisor Memory Area");
183	if (RT_FAILURE(rc))
184	return rc;
185	pVM->mm.s.fPGMInitialized = true;
186
187	/*
188	* Do all the delayed mappings.
189	*/
190	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((uintptr_t)pVM->mm.s.pHyperHeapR3 + pVM->mm.s.offLookupHyper);
191	for (;;)
192	{
193	RTGCPTR GCPtr = pVM->mm.s.pvHyperAreaGC + pLookup->off;
194	uint32_t cPages = pLookup->cb >> PAGE_SHIFT;
195	switch (pLookup->enmType)
196	{
197	case MMLOOKUPHYPERTYPE_LOCKED:
198	{
199	PCRTHCPHYS paHCPhysPages = pLookup->u.Locked.paHCPhysPages;
200	for (uint32_t i = 0; i < cPages; i++)
201	{
202	rc = PGMMap(pVM, GCPtr + (i << PAGE_SHIFT), paHCPhysPages[i], PAGE_SIZE, 0);
203	AssertRCReturn(rc, rc);
204	}
205	break;
206	}
207
208	case MMLOOKUPHYPERTYPE_HCPHYS:
209	rc = PGMMap(pVM, GCPtr, pLookup->u.HCPhys.HCPhys, pLookup->cb, 0);
210	break;
211
212	case MMLOOKUPHYPERTYPE_GCPHYS:
213	{
214	const RTGCPHYS GCPhys = pLookup->u.GCPhys.GCPhys;
215	const uint32_t cb = pLookup->cb;
216	for (uint32_t off = 0; off < cb; off += PAGE_SIZE)
217	{
218	RTHCPHYS HCPhys;
219	rc = PGMPhysGCPhys2HCPhys(pVM, GCPhys + off, &HCPhys);
220	if (RT_FAILURE(rc))
221	break;
222	rc = PGMMap(pVM, GCPtr + off, HCPhys, PAGE_SIZE, 0);
223	if (RT_FAILURE(rc))
224	break;
225	}
226	break;
227	}
228
229	case MMLOOKUPHYPERTYPE_MMIO2:
230	{
231	const RTGCPHYS offEnd = pLookup->u.MMIO2.off + pLookup->cb;
232	for (RTGCPHYS offCur = pLookup->u.MMIO2.off; offCur < offEnd; offCur += PAGE_SIZE)
233	{
234	RTHCPHYS HCPhys;
235	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pLookup->u.MMIO2.pDevIns, pLookup->u.MMIO2.iRegion, offCur, &HCPhys);
236	if (RT_FAILURE(rc))
237	break;
238	rc = PGMMap(pVM, GCPtr + (offCur - pLookup->u.MMIO2.off), HCPhys, PAGE_SIZE, 0);
239	if (RT_FAILURE(rc))
240	break;
241	}
242	break;
243	}
244
245	case MMLOOKUPHYPERTYPE_DYNAMIC:
246	/* do nothing here since these are either fences or managed by someone else using PGM. */
247	break;
248
249	default:
250	AssertMsgFailed(("enmType=%d\n", pLookup->enmType));
251	break;
252	}
253
254	if (RT_FAILURE(rc))
255	{
256	AssertMsgFailed(("rc=%Rrc cb=%d off=%#RX32 enmType=%d pszDesc=%s\n",
257	rc, pLookup->cb, pLookup->off, pLookup->enmType, pLookup->pszDesc));
258	return rc;
259	}
260
261	/* next */
262	if (pLookup->offNext == (int32_t)NIL_OFFSET)
263	break;
264	pLookup = (PMMLOOKUPHYPER)((uintptr_t)pLookup + pLookup->offNext);
265	}
266
267	LogFlow(("MMR3HyperInitFinalize: returns VINF_SUCCESS\n"));
268	return VINF_SUCCESS;
269	}
270
271
272	/**
273	* Callback function which will be called when PGM is trying to find
274	* a new location for the mapping.
275	*
276	* The callback is called in two modes, 1) the check mode and 2) the relocate mode.
277	* In 1) the callback should say if it objects to a suggested new location. If it
278	* accepts the new location, it is called again for doing it's relocation.
279	*
280	*
281	* @returns true if the location is ok.
282	* @returns false if another location should be found.
283	* @param pVM The VM handle.
284	* @param GCPtrOld The old virtual address.
285	* @param GCPtrNew The new virtual address.
286	* @param enmMode Used to indicate the callback mode.
287	* @param pvUser User argument. Ignored.
288	* @remark The return value is no a failure indicator, it's an acceptance
289	* indicator. Relocation can not fail!
290	*/
291	static DECLCALLBACK(bool) mmR3HyperRelocateCallback(PVM pVM, RTGCPTR GCPtrOld, RTGCPTR GCPtrNew, PGMRELOCATECALL enmMode, void *pvUser)
292	{
293	switch (enmMode)
294	{
295	/*
296	* Verify location - all locations are good for us.
297	*/
298	case PGMRELOCATECALL_SUGGEST:
299	return true;
300
301	/*
302	* Execute the relocation.
303	*/
304	case PGMRELOCATECALL_RELOCATE:
305	{
306	/*
307	* Accepted!
308	*/
309	AssertMsg(GCPtrOld == pVM->mm.s.pvHyperAreaGC, ("GCPtrOld=%RGv pVM->mm.s.pvHyperAreaGC=%RGv\n", GCPtrOld, pVM->mm.s.pvHyperAreaGC));
310	Log(("Relocating the hypervisor from %RGv to %RGv\n", GCPtrOld, GCPtrNew));
311
312	/*
313	* Relocate the VM structure and ourselves.
314	*/
315	RTGCINTPTR offDelta = GCPtrNew - GCPtrOld;
316	pVM->pVMRC += offDelta;
317	for (uint32_t i = 0; i < pVM->cCPUs; i++)
318	pVM->aCpus[i].pVMRC = pVM->pVMRC;
319
320	pVM->mm.s.pvHyperAreaGC += offDelta;
321	Assert(pVM->mm.s.pvHyperAreaGC < _4G);
322	pVM->mm.s.pHyperHeapRC += offDelta;
323	pVM->mm.s.pHyperHeapR3->pbHeapRC += offDelta;
324	pVM->mm.s.pHyperHeapR3->pVMRC = pVM->pVMRC;
325
326	/*
327	* Relocate the rest.
328	*/
329	VMR3Relocate(pVM, offDelta);
330	return true;
331	}
332
333	default:
334	AssertMsgFailed(("Invalid relocation mode %d\n", enmMode));
335	}
336
337	return false;
338	}
339
340
341	/**
342	* Maps contiguous HC physical memory into the hypervisor region in the GC.
343	*
344	* @return VBox status code.
345	*
346	* @param pVM VM handle.
347	* @param pvR3 Ring-3 address of the memory. Must be page aligned!
348	* @param pvR0 Optional ring-0 address of the memory.
349	* @param HCPhys Host context physical address of the memory to be
350	* mapped. Must be page aligned!
351	* @param cb Size of the memory. Will be rounded up to nearest page.
352	* @param pszDesc Description.
353	* @param pGCPtr Where to store the GC address.
354	*/
355	VMMR3DECL(int) MMR3HyperMapHCPhys(PVM pVM, void pvR3, RTR0PTR pvR0, RTHCPHYS HCPhys, size_t cb, const char pszDesc, PRTGCPTR pGCPtr)
356	{
357	LogFlow(("MMR3HyperMapHCPhys: pvR3=%p pvR0=%p HCPhys=%RHp cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", pvR3, pvR0, HCPhys, (int)cb, pszDesc, pszDesc, pGCPtr));
358
359	/*
360	* Validate input.
361	*/
362	AssertReturn(RT_ALIGN_P(pvR3, PAGE_SIZE) == pvR3, VERR_INVALID_PARAMETER);
363	AssertReturn(RT_ALIGN_T(pvR0, PAGE_SIZE, RTR0PTR) == pvR0, VERR_INVALID_PARAMETER);
364	AssertReturn(RT_ALIGN_T(HCPhys, PAGE_SIZE, RTHCPHYS) == HCPhys, VERR_INVALID_PARAMETER);
365	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
366
367	/*
368	* Add the memory to the hypervisor area.
369	*/
370	uint32_t cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
371	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
372	RTGCPTR GCPtr;
373	PMMLOOKUPHYPER pLookup;
374	int rc = mmR3HyperMap(pVM, cbAligned, pszDesc, &GCPtr, &pLookup);
375	if (RT_SUCCESS(rc))
376	{
377	pLookup->enmType = MMLOOKUPHYPERTYPE_HCPHYS;
378	pLookup->u.HCPhys.pvR3 = pvR3;
379	pLookup->u.HCPhys.pvR0 = pvR0;
380	pLookup->u.HCPhys.HCPhys = HCPhys;
381
382	/*
383	* Update the page table.
384	*/
385	if (pVM->mm.s.fPGMInitialized)
386	rc = PGMMap(pVM, GCPtr, HCPhys, cbAligned, 0);
387	if (RT_SUCCESS(rc))
388	*pGCPtr = GCPtr;
389	}
390	return rc;
391	}
392
393
394	/**
395	* Maps contiguous GC physical memory into the hypervisor region in the GC.
396	*
397	* @return VBox status code.
398	*
399	* @param pVM VM handle.
400	* @param GCPhys Guest context physical address of the memory to be mapped. Must be page aligned!
401	* @param cb Size of the memory. Will be rounded up to nearest page.
402	* @param pszDesc Mapping description.
403	* @param pGCPtr Where to store the GC address.
404	*/
405	VMMR3DECL(int) MMR3HyperMapGCPhys(PVM pVM, RTGCPHYS GCPhys, size_t cb, const char *pszDesc, PRTGCPTR pGCPtr)
406	{
407	LogFlow(("MMR3HyperMapGCPhys: GCPhys=%RGp cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", GCPhys, (int)cb, pszDesc, pszDesc, pGCPtr));
408
409	/*
410	* Validate input.
411	*/
412	AssertReturn(RT_ALIGN_T(GCPhys, PAGE_SIZE, RTGCPHYS) == GCPhys, VERR_INVALID_PARAMETER);
413	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
414
415	/*
416	* Add the memory to the hypervisor area.
417	*/
418	cb = RT_ALIGN_Z(cb, PAGE_SIZE);
419	RTGCPTR GCPtr;
420	PMMLOOKUPHYPER pLookup;
421	int rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
422	if (RT_SUCCESS(rc))
423	{
424	pLookup->enmType = MMLOOKUPHYPERTYPE_GCPHYS;
425	pLookup->u.GCPhys.GCPhys = GCPhys;
426
427	/*
428	* Update the page table.
429	*/
430	for (unsigned off = 0; off < cb; off += PAGE_SIZE)
431	{
432	RTHCPHYS HCPhys;
433	rc = PGMPhysGCPhys2HCPhys(pVM, GCPhys + off, &HCPhys);
434	AssertRC(rc);
435	if (RT_FAILURE(rc))
436	{
437	AssertMsgFailed(("rc=%Rrc GCPhys=%RGp off=%#x %s\n", rc, GCPhys, off, pszDesc));
438	break;
439	}
440	if (pVM->mm.s.fPGMInitialized)
441	{
442	rc = PGMMap(pVM, GCPtr + off, HCPhys, PAGE_SIZE, 0);
443	AssertRC(rc);
444	if (RT_FAILURE(rc))
445	{
446	AssertMsgFailed(("rc=%Rrc GCPhys=%RGp off=%#x %s\n", rc, GCPhys, off, pszDesc));
447	break;
448	}
449	}
450	}
451
452	if (RT_SUCCESS(rc) && pGCPtr)
453	*pGCPtr = GCPtr;
454	}
455	return rc;
456	}
457
458
459	/**
460	* Maps a portion of an MMIO2 region into the hypervisor region.
461	*
462	* Callers of this API must never deregister the MMIO2 region before the
463	* VM is powered off. If this becomes a requirement MMR3HyperUnmapMMIO2
464	* API will be needed to perform cleanups.
465	*
466	* @return VBox status code.
467	*
468	* @param pVM Pointer to the shared VM structure.
469	* @param pDevIns The device owning the MMIO2 memory.
470	* @param iRegion The region.
471	* @param off The offset into the region. Will be rounded down to closest page boundrary.
472	* @param cb The number of bytes to map. Will be rounded up to the closest page boundrary.
473	* @param pszDesc Mapping description.
474	* @param pRCPtr Where to store the RC address.
475	*/
476	VMMR3DECL(int) MMR3HyperMapMMIO2(PVM pVM, PPDMDEVINS pDevIns, uint32_t iRegion, RTGCPHYS off, RTGCPHYS cb,
477	const char *pszDesc, PRTRCPTR pRCPtr)
478	{
479	LogFlow(("MMR3HyperMapMMIO2: pDevIns=%p iRegion=%#x off=%RGp cb=%RGp pszDesc=%p:{%s} pRCPtr=%p\n",
480	pDevIns, iRegion, off, cb, pszDesc, pszDesc, pRCPtr));
481	int rc;
482
483	/*
484	* Validate input.
485	*/
486	AssertReturn(pszDesc && *pszDesc, VERR_INVALID_PARAMETER);
487	AssertReturn(off + cb > off, VERR_INVALID_PARAMETER);
488	uint32_t const offPage = off & PAGE_OFFSET_MASK;
489	off &= ~(RTGCPHYS)PAGE_OFFSET_MASK;
490	cb += offPage;
491	cb = RT_ALIGN_Z(cb, PAGE_SIZE);
492	const RTGCPHYS offEnd = off + cb;
493	AssertReturn(offEnd > off, VERR_INVALID_PARAMETER);
494	for (RTGCPHYS offCur = off; offCur < offEnd; offCur += PAGE_SIZE)
495	{
496	RTHCPHYS HCPhys;
497	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pDevIns, iRegion, offCur, &HCPhys);
498	AssertMsgRCReturn(rc, ("rc=%Rrc - iRegion=%d off=%RGp\n", rc, iRegion, off), rc);
499	}
500
501	/*
502	* Add the memory to the hypervisor area.
503	*/
504	RTGCPTR GCPtr;
505	PMMLOOKUPHYPER pLookup;
506	rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
507	if (RT_SUCCESS(rc))
508	{
509	pLookup->enmType = MMLOOKUPHYPERTYPE_MMIO2;
510	pLookup->u.MMIO2.pDevIns = pDevIns;
511	pLookup->u.MMIO2.iRegion = iRegion;
512	pLookup->u.MMIO2.off = off;
513
514	/*
515	* Update the page table.
516	*/
517	if (pVM->mm.s.fPGMInitialized)
518	{
519	for (RTGCPHYS offCur = off; offCur < offEnd; offCur += PAGE_SIZE)
520	{
521	RTHCPHYS HCPhys;
522	rc = PGMR3PhysMMIO2GetHCPhys(pVM, pDevIns, iRegion, offCur, &HCPhys);
523	AssertRCReturn(rc, VERR_INTERNAL_ERROR);
524	rc = PGMMap(pVM, GCPtr + (offCur - off), HCPhys, PAGE_SIZE, 0);
525	if (RT_FAILURE(rc))
526	{
527	AssertMsgFailed(("rc=%Rrc offCur=%RGp %s\n", rc, offCur, pszDesc));
528	break;
529	}
530	}
531	}
532
533	if (RT_SUCCESS(rc))
534	{
535	GCPtr \|= offPage;
536	*pRCPtr = GCPtr;
537	AssertLogRelReturn(*pRCPtr == GCPtr, VERR_INTERNAL_ERROR);
538	}
539	}
540	return rc;
541	}
542
543
544	/**
545	* Maps locked R3 virtual memory into the hypervisor region in the GC.
546	*
547	* @return VBox status code.
548	*
549	* @param pVM VM handle.
550	* @param pvR3 The ring-3 address of the memory, must be page aligned.
551	* @param pvR0 The ring-0 address of the memory, must be page aligned. (optional)
552	* @param cPages The number of pages.
553	* @param paPages The page descriptors.
554	* @param pszDesc Mapping description.
555	* @param pGCPtr Where to store the GC address corresponding to pvR3.
556	*/
557	VMMR3DECL(int) MMR3HyperMapPages(PVM pVM, void pvR3, RTR0PTR pvR0, size_t cPages, PCSUPPAGE paPages, const char pszDesc, PRTGCPTR pGCPtr)
558	{
559	LogFlow(("MMR3HyperMapPages: pvR3=%p pvR0=%p cPages=%zu paPages=%p pszDesc=%p:{%s} pGCPtr=%p\n",
560	pvR3, pvR0, cPages, paPages, pszDesc, pszDesc, pGCPtr));
561
562	/*
563	* Validate input.
564	*/
565	AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
566	AssertPtrReturn(paPages, VERR_INVALID_POINTER);
567	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
568	AssertReturn(cPages <= VBOX_MAX_ALLOC_PAGE_COUNT, VERR_PAGE_COUNT_OUT_OF_RANGE);
569	AssertPtrReturn(pszDesc, VERR_INVALID_POINTER);
570	AssertReturn(*pszDesc, VERR_INVALID_PARAMETER);
571	AssertPtrReturn(pGCPtr, VERR_INVALID_PARAMETER);
572
573	/*
574	* Add the memory to the hypervisor area.
575	*/
576	RTGCPTR GCPtr;
577	PMMLOOKUPHYPER pLookup;
578	int rc = mmR3HyperMap(pVM, cPages << PAGE_SHIFT, pszDesc, &GCPtr, &pLookup);
579	if (RT_SUCCESS(rc))
580	{
581	/*
582	* Copy the physical page addresses and tell PGM about them.
583	*/
584	PRTHCPHYS paHCPhysPages = (PRTHCPHYS)MMR3HeapAlloc(pVM, MM_TAG_MM, sizeof(RTHCPHYS) * cPages);
585	if (paHCPhysPages)
586	{
587	for (size_t i = 0; i < cPages; i++)
588	{
589	AssertReleaseMsgReturn(paPages[i].Phys != 0 && paPages[i].Phys != NIL_RTHCPHYS && !(paPages[i].Phys & PAGE_OFFSET_MASK),
590	("i=%#zx Phys=%RHp %s\n", i, paPages[i].Phys, pszDesc),
591	VERR_INTERNAL_ERROR);
592	paHCPhysPages[i] = paPages[i].Phys;
593	}
594
595	if (pVM->mm.s.fPGMInitialized)
596	{
597	for (size_t i = 0; i < cPages; i++)
598	{
599	rc = PGMMap(pVM, GCPtr + (i << PAGE_SHIFT), paHCPhysPages[i], PAGE_SIZE, 0);
600	AssertRCBreak(rc);
601	}
602	}
603	if (RT_SUCCESS(rc))
604	{
605	pLookup->enmType = MMLOOKUPHYPERTYPE_LOCKED;
606	pLookup->u.Locked.pvR3 = pvR3;
607	pLookup->u.Locked.pvR0 = pvR0;
608	pLookup->u.Locked.paHCPhysPages = paHCPhysPages;
609
610	/* done. */
611	*pGCPtr = GCPtr;
612	return rc;
613	}
614	/* Don't care about failure clean, we're screwed if this fails anyway. */
615	}
616	}
617
618	return rc;
619	}
620
621
622	/**
623	* Reserves a hypervisor memory area.
624	* Most frequent usage is fence pages and dynamically mappings like the guest PD and PDPT.
625	*
626	* @return VBox status code.
627	*
628	* @param pVM VM handle.
629	* @param cb Size of the memory. Will be rounded up to nearest page.
630	* @param pszDesc Mapping description.
631	* @param pGCPtr Where to store the assigned GC address. Optional.
632	*/
633	VMMR3DECL(int) MMR3HyperReserve(PVM pVM, unsigned cb, const char *pszDesc, PRTGCPTR pGCPtr)
634	{
635	LogFlow(("MMR3HyperMapHCRam: cb=%d pszDesc=%p:{%s} pGCPtr=%p\n", (int)cb, pszDesc, pszDesc, pGCPtr));
636
637	/*
638	* Validate input.
639	*/
640	if ( cb <= 0
641	\|\| !pszDesc
642	\|\| !*pszDesc)
643	{
644	AssertMsgFailed(("Invalid parameter\n"));
645	return VERR_INVALID_PARAMETER;
646	}
647
648	/*
649	* Add the memory to the hypervisor area.
650	*/
651	RTGCPTR GCPtr;
652	PMMLOOKUPHYPER pLookup;
653	int rc = mmR3HyperMap(pVM, cb, pszDesc, &GCPtr, &pLookup);
654	if (RT_SUCCESS(rc))
655	{
656	pLookup->enmType = MMLOOKUPHYPERTYPE_DYNAMIC;
657	if (pGCPtr)
658	*pGCPtr = GCPtr;
659	return VINF_SUCCESS;
660	}
661	return rc;
662	}
663
664
665	/**
666	* Adds memory to the hypervisor memory arena.
667	*
668	* @return VBox status code.
669	* @param pVM The VM handle.
670	* @param cb Size of the memory. Will be rounded up to neares page.
671	* @param pszDesc The description of the memory.
672	* @param pGCPtr Where to store the GC address.
673	* @param ppLookup Where to store the pointer to the lookup record.
674	* @remark We assume the threading structure of VBox imposes natural
675	* serialization of most functions, this one included.
676	*/
677	static int mmR3HyperMap(PVM pVM, const size_t cb, const char pszDesc, PRTGCPTR pGCPtr, PMMLOOKUPHYPER ppLookup)
678	{
679	/*
680	* Validate input.
681	*/
682	const uint32_t cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
683	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
684	if (pVM->mm.s.offHyperNextStatic + cbAligned >= pVM->mm.s.cbHyperArea) /* don't use the last page, it's a fence. */
685	{
686	AssertMsgFailed(("Out of static mapping space in the HMA! offHyperAreaGC=%x cbAligned=%x cbHyperArea=%x\n",
687	pVM->mm.s.offHyperNextStatic, cbAligned, pVM->mm.s.cbHyperArea));
688	return VERR_NO_MEMORY;
689	}
690
691	/*
692	* Allocate lookup record.
693	*/
694	PMMLOOKUPHYPER pLookup;
695	int rc = MMHyperAlloc(pVM, sizeof(pLookup), 1, MM_TAG_MM, (void *)&pLookup);
696	if (RT_SUCCESS(rc))
697	{
698	/*
699	* Initialize it and insert it.
700	*/
701	pLookup->offNext = pVM->mm.s.offLookupHyper;
702	pLookup->cb = cbAligned;
703	pLookup->off = pVM->mm.s.offHyperNextStatic;
704	pVM->mm.s.offLookupHyper = (uint8_t )pLookup - (uint8_t )pVM->mm.s.pHyperHeapR3;
705	if (pLookup->offNext != (int32_t)NIL_OFFSET)
706	pLookup->offNext -= pVM->mm.s.offLookupHyper;
707	pLookup->enmType = MMLOOKUPHYPERTYPE_INVALID;
708	memset(&pLookup->u, 0xff, sizeof(pLookup->u));
709	pLookup->pszDesc = pszDesc;
710
711	/* Mapping. */
712	*pGCPtr = pVM->mm.s.pvHyperAreaGC + pVM->mm.s.offHyperNextStatic;
713	pVM->mm.s.offHyperNextStatic += cbAligned;
714
715	/* Return pointer. */
716	*ppLookup = pLookup;
717	}
718
719	AssertRC(rc);
720	LogFlow(("mmR3HyperMap: returns %Rrc pGCPtr=%RGv\n", rc, pGCPtr));
721	return rc;
722	}
723
724
725	/**
726	* Allocates a new heap.
727	*
728	* @returns VBox status code.
729	* @param pVM The VM handle.
730	* @param cb The size of the new heap.
731	* @param ppHeap Where to store the heap pointer on successful return.
732	* @param pR0PtrHeap Where to store the ring-0 address of the heap on
733	* success.
734	*/
735	static int mmR3HyperHeapCreate(PVM pVM, const size_t cb, PMMHYPERHEAP *ppHeap, PRTR0PTR pR0PtrHeap)
736	{
737	/*
738	* Allocate the hypervisor heap.
739	*/
740	const uint32_t cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
741	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
742	uint32_t const cPages = cbAligned >> PAGE_SHIFT;
743	PSUPPAGE paPages = (PSUPPAGE)MMR3HeapAlloc(pVM, MM_TAG_MM, cPages * sizeof(paPages[0]));
744	if (!paPages)
745	return VERR_NO_MEMORY;
746	void *pv;
747	RTR0PTR pvR0 = NIL_RTR0PTR;
748	int rc = SUPR3PageAllocEx(cPages,
749	0 /fFlags/,
750	&pv,
751	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
752	VMMIsHwVirtExtForced(pVM) ? &pvR0 : NULL,
753	#else
754	NULL,
755	#endif
756	paPages);
757	if (RT_SUCCESS(rc))
758	{
759	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
760	if (!VMMIsHwVirtExtForced(pVM))
761	pvR0 = NIL_RTR0PTR;
762	#else
763	pvR0 = (uintptr_t)pv;
764	#endif
765	memset(pv, 0, cbAligned);
766
767	/*
768	* Initialize the heap and first free chunk.
769	*/
770	PMMHYPERHEAP pHeap = (PMMHYPERHEAP)pv;
771	pHeap->u32Magic = MMHYPERHEAP_MAGIC;
772	pHeap->pbHeapR3 = (uint8_t *)pHeap + MMYPERHEAP_HDR_SIZE;
773	pHeap->pbHeapR0 = pvR0 != NIL_RTR0PTR ? pvR0 + MMYPERHEAP_HDR_SIZE : NIL_RTR0PTR;
774	//pHeap->pbHeapRC = 0; // set by mmR3HyperHeapMap()
775	pHeap->pVMR3 = pVM;
776	pHeap->pVMR0 = pVM->pVMR0;
777	pHeap->pVMRC = pVM->pVMRC;
778	pHeap->cbHeap = cbAligned - MMYPERHEAP_HDR_SIZE;
779	pHeap->cbFree = pHeap->cbHeap - sizeof(MMHYPERCHUNK);
780	//pHeap->offFreeHead = 0;
781	//pHeap->offFreeTail = 0;
782	pHeap->offPageAligned = pHeap->cbHeap;
783	//pHeap->HyperHeapStatTree = 0;
784	pHeap->paPages = paPages;
785
786	PMMHYPERCHUNKFREE pFree = (PMMHYPERCHUNKFREE)pHeap->pbHeapR3;
787	pFree->cb = pHeap->cbFree;
788	//pFree->core.offNext = 0;
789	MMHYPERCHUNK_SET_TYPE(&pFree->core, MMHYPERCHUNK_FLAGS_FREE);
790	pFree->core.offHeap = -(int32_t)MMYPERHEAP_HDR_SIZE;
791	//pFree->offNext = 0;
792	//pFree->offPrev = 0;
793
794	STAMR3Register(pVM, &pHeap->cbHeap, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, "/MM/HyperHeap/cbHeap", STAMUNIT_BYTES, "The heap size.");
795	STAMR3Register(pVM, &pHeap->cbFree, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, "/MM/HyperHeap/cbFree", STAMUNIT_BYTES, "The free space.");
796
797	*ppHeap = pHeap;
798	*pR0PtrHeap = pvR0;
799	return VINF_SUCCESS;
800	}
801	AssertMsgFailed(("SUPR3PageAllocEx(%d,,,,) -> %Rrc\n", cbAligned >> PAGE_SHIFT, rc));
802
803	*ppHeap = NULL;
804	return rc;
805	}
806
807	/**
808	* Allocates a new heap.
809	*/
810	static int mmR3HyperHeapMap(PVM pVM, PMMHYPERHEAP pHeap, PRTGCPTR ppHeapGC)
811	{
812	Assert(RT_ALIGN_Z(pHeap->cbHeap + MMYPERHEAP_HDR_SIZE, PAGE_SIZE) == pHeap->cbHeap + MMYPERHEAP_HDR_SIZE);
813	Assert(pHeap->paPages);
814	int rc = MMR3HyperMapPages(pVM,
815	pHeap,
816	pHeap->pbHeapR0 != NIL_RTR0PTR ? pHeap->pbHeapR0 - MMYPERHEAP_HDR_SIZE : NIL_RTR0PTR,
817	(pHeap->cbHeap + MMYPERHEAP_HDR_SIZE) >> PAGE_SHIFT,
818	pHeap->paPages,
819	"Heap", ppHeapGC);
820	if (RT_SUCCESS(rc))
821	{
822	pHeap->pVMRC = pVM->pVMRC;
823	pHeap->pbHeapRC = *ppHeapGC + MMYPERHEAP_HDR_SIZE;
824	/* Reserve a page for fencing. */
825	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
826
827	/* We won't need these any more. */
828	MMR3HeapFree(pHeap->paPages);
829	pHeap->paPages = NULL;
830	}
831	return rc;
832	}
833
834
835	/**
836	* Allocates memory in the Hypervisor (GC VMM) area which never will
837	* be freed and doesn't have any offset based relation to other heap blocks.
838	*
839	* The latter means that two blocks allocated by this API will not have the
840	* same relative position to each other in GC and HC. In short, never use
841	* this API for allocating nodes for an offset based AVL tree!
842	*
843	* The returned memory is of course zeroed.
844	*
845	* @returns VBox status code.
846	* @param pVM The VM to operate on.
847	* @param cb Number of bytes to allocate.
848	* @param uAlignment Required memory alignment in bytes.
849	* Values are 0,8,16,32 and PAGE_SIZE.
850	* 0 -> default alignment, i.e. 8 bytes.
851	* @param enmTag The statistics tag.
852	* @param ppv Where to store the address to the allocated
853	* memory.
854	* @remark This is assumed not to be used at times when serialization is required.
855	*/
856	VMMDECL(int) MMR3HyperAllocOnceNoRel(PVM pVM, size_t cb, unsigned uAlignment, MMTAG enmTag, void **ppv)
857	{
858	AssertMsg(cb >= 8, ("Hey! Do you really mean to allocate less than 8 bytes?! cb=%d\n", cb));
859
860	/*
861	* Choose between allocating a new chunk of HMA memory
862	* and the heap. We will only do BIG allocations from HMA and
863	* only at creation time.
864	*/
865	if ( ( cb < _64K
866	&& ( uAlignment != PAGE_SIZE
867	\|\| cb < 48*_1K))
868	\|\| VMR3GetState(pVM) != VMSTATE_CREATING)
869	{
870	int rc = MMHyperAlloc(pVM, cb, uAlignment, enmTag, ppv);
871	if ( rc != VERR_MM_HYPER_NO_MEMORY
872	\|\| cb <= 8*_1K)
873	{
874	Log2(("MMR3HyperAllocOnceNoRel: cb=%#zx uAlignment=%#x returns %Rrc and *ppv=%p\n",
875	cb, uAlignment, rc, *ppv));
876	return rc;
877	}
878	}
879
880	/*
881	* Validate alignment.
882	*/
883	switch (uAlignment)
884	{
885	case 0:
886	case 8:
887	case 16:
888	case 32:
889	case PAGE_SIZE:
890	break;
891	default:
892	AssertMsgFailed(("Invalid alignment %u\n", uAlignment));
893	return VERR_INVALID_PARAMETER;
894	}
895
896	/*
897	* Allocate the pages and map them into HMA space.
898	*/
899	uint32_t const cbAligned = RT_ALIGN_32(cb, PAGE_SIZE);
900	AssertReturn(cbAligned >= cb, VERR_INVALID_PARAMETER);
901	uint32_t const cPages = cbAligned >> PAGE_SHIFT;
902	PSUPPAGE paPages = (PSUPPAGE)RTMemTmpAlloc(cPages * sizeof(paPages[0]));
903	if (!paPages)
904	return VERR_NO_TMP_MEMORY;
905	void *pvPages;
906	RTR0PTR pvR0 = NIL_RTR0PTR;
907	int rc = SUPR3PageAllocEx(cPages,
908	0 /fFlags/,
909	&pvPages,
910	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
911	VMMIsHwVirtExtForced(pVM) ? &pvR0 : NULL,
912	#else
913	NULL,
914	#endif
915	paPages);
916	if (RT_SUCCESS(rc))
917	{
918	#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
919	if (!VMMIsHwVirtExtForced(pVM))
920	pvR0 = NIL_RTR0PTR;
921	#else
922	pvR0 = (uintptr_t)pvPages;
923	#endif
924	memset(pvPages, 0, cbAligned);
925
926	RTGCPTR GCPtr;
927	rc = MMR3HyperMapPages(pVM,
928	pvPages,
929	pvR0,
930	cPages,
931	paPages,
932	MMR3HeapAPrintf(pVM, MM_TAG_MM, "alloc once (%s)", mmR3GetTagName(enmTag)),
933	&GCPtr);
934	if (RT_SUCCESS(rc))
935	{
936	*ppv = pvPages;
937	Log2(("MMR3HyperAllocOnceNoRel: cbAligned=%#x uAlignment=%#x returns VINF_SUCCESS and *ppv=%p\n",
938	cbAligned, uAlignment, *ppv));
939	MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
940	return rc;
941	}
942	AssertMsgFailed(("Failed to allocate %zd bytes! %Rrc\n", cbAligned, rc));
943	SUPR3PageFreeEx(pvPages, cPages);
944
945
946	/*
947	* HACK ALERT! Try allocate it off the heap so that we don't freak
948	* out during vga/vmmdev mmio2 allocation with certain ram sizes.
949	*/
950	/** @todo make a proper fix for this so we will never end up in this kind of situation! */
951	Log(("MMR3HyperAllocOnceNoRel: MMR3HyperMapHCRam failed with rc=%Rrc, try MMHyperAlloc(,%#x,,) instead\n", rc, cb));
952	int rc2 = MMHyperAlloc(pVM, cb, uAlignment, enmTag, ppv);
953	if (RT_SUCCESS(rc2))
954	{
955	Log2(("MMR3HyperAllocOnceNoRel: cb=%#x uAlignment=%#x returns %Rrc and *ppv=%p\n",
956	cb, uAlignment, rc, *ppv));
957	return rc;
958	}
959	}
960	else
961	AssertMsgFailed(("Failed to allocate %zd bytes! %Rrc\n", cbAligned, rc));
962
963	if (rc == VERR_NO_MEMORY)
964	rc = VERR_MM_HYPER_NO_MEMORY;
965	LogRel(("MMR3HyperAllocOnceNoRel: cb=%#zx uAlignment=%#x returns %Rrc\n", cb, uAlignment, rc));
966	return rc;
967	}
968
969
970	/**
971	* Convert hypervisor HC virtual address to HC physical address.
972	*
973	* @returns HC physical address.
974	* @param pVM VM Handle
975	* @param pvR3 Host context virtual address.
976	*/
977	VMMR3DECL(RTHCPHYS) MMR3HyperHCVirt2HCPhys(PVM pVM, void *pvR3)
978	{
979	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((uint8_t *)pVM->mm.s.pHyperHeapR3 + pVM->mm.s.offLookupHyper);
980	for (;;)
981	{
982	switch (pLookup->enmType)
983	{
984	case MMLOOKUPHYPERTYPE_LOCKED:
985	{
986	unsigned off = (uint8_t )pvR3 - (uint8_t )pLookup->u.Locked.pvR3;
987	if (off < pLookup->cb)
988	return pLookup->u.Locked.paHCPhysPages[off >> PAGE_SHIFT] \| (off & PAGE_OFFSET_MASK);
989	break;
990	}
991
992	case MMLOOKUPHYPERTYPE_HCPHYS:
993	{
994	unsigned off = (uint8_t )pvR3 - (uint8_t )pLookup->u.HCPhys.pvR3;
995	if (off < pLookup->cb)
996	return pLookup->u.HCPhys.HCPhys + off;
997	break;
998	}
999
1000	case MMLOOKUPHYPERTYPE_GCPHYS:
1001	case MMLOOKUPHYPERTYPE_MMIO2:
1002	case MMLOOKUPHYPERTYPE_DYNAMIC:
1003	/* can (or don't want to) convert these kind of records. */
1004	break;
1005
1006	default:
1007	AssertMsgFailed(("enmType=%d\n", pLookup->enmType));
1008	break;
1009	}
1010
1011	/* next */
1012	if ((unsigned)pLookup->offNext == NIL_OFFSET)
1013	break;
1014	pLookup = (PMMLOOKUPHYPER)((uint8_t *)pLookup + pLookup->offNext);
1015	}
1016
1017	AssertMsgFailed(("pvR3=%p is not inside the hypervisor memory area!\n", pvR3));
1018	return NIL_RTHCPHYS;
1019	}
1020
1021
1022	#if 0 /* unused, not implemented */
1023	/**
1024	* Convert hypervisor HC physical address to HC virtual address.
1025	*
1026	* @returns HC virtual address.
1027	* @param pVM VM Handle
1028	* @param HCPhys Host context physical address.
1029	*/
1030	VMMR3DECL(void *) MMR3HyperHCPhys2HCVirt(PVM pVM, RTHCPHYS HCPhys)
1031	{
1032	void *pv;
1033	int rc = MMR3HyperHCPhys2HCVirtEx(pVM, HCPhys, &pv);
1034	if (RT_SUCCESS(rc))
1035	return pv;
1036	AssertMsgFailed(("Invalid address HCPhys=%x rc=%d\n", HCPhys, rc));
1037	return NULL;
1038	}
1039
1040
1041	/**
1042	* Convert hypervisor HC physical address to HC virtual address.
1043	*
1044	* @returns VBox status.
1045	* @param pVM VM Handle
1046	* @param HCPhys Host context physical address.
1047	* @param ppv Where to store the HC virtual address.
1048	*/
1049	VMMR3DECL(int) MMR3HyperHCPhys2HCVirtEx(PVM pVM, RTHCPHYS HCPhys, void **ppv)
1050	{
1051	/*
1052	* Linear search.
1053	*/
1054	/** @todo implement when actually used. */
1055	return VERR_INVALID_POINTER;
1056	}
1057	#endif /* unused, not implemented */
1058
1059
1060	/**
1061	* Read hypervisor memory from GC virtual address.
1062	*
1063	* @returns VBox status.
1064	* @param pVM VM handle.
1065	* @param pvDst Destination address (HC of course).
1066	* @param GCPtr GC virtual address.
1067	* @param cb Number of bytes to read.
1068	*
1069	* @remarks For DBGF only.
1070	*/
1071	VMMR3DECL(int) MMR3HyperReadGCVirt(PVM pVM, void *pvDst, RTGCPTR GCPtr, size_t cb)
1072	{
1073	if (GCPtr - pVM->mm.s.pvHyperAreaGC >= pVM->mm.s.cbHyperArea)
1074	return VERR_INVALID_PARAMETER;
1075	return PGMR3MapRead(pVM, pvDst, GCPtr, cb);
1076	}
1077
1078
1079	/**
1080	* Info handler for 'hma', it dumps the list of lookup records for the hypervisor memory area.
1081	*
1082	* @param pVM The VM handle.
1083	* @param pHlp Callback functions for doing output.
1084	* @param pszArgs Argument string. Optional and specific to the handler.
1085	*/
1086	static DECLCALLBACK(void) mmR3HyperInfoHma(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
1087	{
1088	pHlp->pfnPrintf(pHlp, "Hypervisor Memory Area (HMA) Layout: Base %RGv, 0x%08x bytes\n",
1089	pVM->mm.s.pvHyperAreaGC, pVM->mm.s.cbHyperArea);
1090
1091	PMMLOOKUPHYPER pLookup = (PMMLOOKUPHYPER)((uint8_t *)pVM->mm.s.pHyperHeapR3 + pVM->mm.s.offLookupHyper);
1092	for (;;)
1093	{
1094	switch (pLookup->enmType)
1095	{
1096	case MMLOOKUPHYPERTYPE_LOCKED:
1097	pHlp->pfnPrintf(pHlp, "%RGv-%RGv %RHv %RHv LOCKED %-*s %s\n",
1098	pLookup->off + pVM->mm.s.pvHyperAreaGC,
1099	pLookup->off + pVM->mm.s.pvHyperAreaGC + pLookup->cb,
1100	pLookup->u.Locked.pvR3,
1101	pLookup->u.Locked.pvR0,
1102	sizeof(RTHCPTR) * 2, "",
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@ 19663

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