PGMMap.cpp@ 1995

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1	/* $Id: PGMMap.cpp 1578 2007-03-20 20:02:06Z vboxsync $ */
2	/** @file
3	* PGM - Page Manager, Guest Context Mappings.
4	*/
5
6	/*
7	* Copyright (C) 2006 InnoTek Systemberatung GmbH
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License as published by the Free Software Foundation,
13	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14	* distribution. VirtualBox OSE is distributed in the hope that it will
15	* be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* If you received this file as part of a commercial VirtualBox
18	* distribution, then only the terms of your commercial VirtualBox
19	* license agreement apply instead of the previous paragraph.
20	*/
21
22
23	/*******************************************************************************
24	* Header Files *
25	*******************************************************************************/
26	#define LOG_GROUP LOG_GROUP_PGM
27	#include <VBox/dbgf.h>
28	#include <VBox/pgm.h>
29	#include "PGMInternal.h"
30	#include <VBox/vm.h>
31
32	#include <VBox/log.h>
33	#include <VBox/err.h>
34	#include <iprt/asm.h>
35	#include <iprt/assert.h>
36	#include <iprt/string.h>
37
38
39	/*******************************************************************************
40	* Internal Functions *
41	*******************************************************************************/
42	static void pgmR3MapClearPDEs(PPGM pPGM, PPGMMAPPING pMap, int iOldPDE);
43	static void pgmR3MapSetPDEs(PVM pVM, PPGMMAPPING pMap, int iNewPDE);
44	static DECLCALLBACK(int) pgmR3DumpMappingsPhysicalCB(PAVLROGCPHYSNODECORE pNode, void *pvUser);
45	static int pgmR3MapIntermediateCheckOne(PVM pVM, uintptr_t uAddress, unsigned cPages, PX86PT pPTDefault, PX86PTPAE pPTPaeDefault);
46	static void pgmR3MapIntermediateDoOne(PVM pVM, uintptr_t uAddress, RTHCPHYS HCPhys, unsigned cPages, PX86PT pPTDefault, PX86PTPAE pPTPaeDefault);
47
48
49
50	/**
51	* Creates a page table based mapping in GC.
52	*
53	* @returns VBox status code.
54	* @param pVM VM Handle.
55	* @param GCPtr Virtual Address. (Page table aligned!)
56	* @param cb Size of the range. Must be a 4MB aligned!
57	* @param pfnRelocate Relocation callback function.
58	* @param pvUser User argument to the callback.
59	* @param pszDesc Pointer to description string. This must not be freed.
60	*/
61	PGMR3DECL(int) PGMR3MapPT(PVM pVM, RTGCPTR GCPtr, size_t cb, PFNPGMRELOCATE pfnRelocate, void pvUser, const char pszDesc)
62	{
63	LogFlow(("PGMR3MapPT: GCPtr=%#x cb=%d pfnRelocate=%p pvUser=%p pszDesc=%s\n", GCPtr, cb, pfnRelocate, pvUser, pszDesc));
64	AssertMsg(pVM->pgm.s.pInterPD && pVM->pgm.s.pHC32BitPD, ("Paging isn't initialized, init order problems!\n"));
65
66	/*
67	* Validate input.
68	*/
69	if (cb < _2M \|\| cb > 64 * _1M)
70	{
71	AssertMsgFailed(("Serious? cb=%d\n", cb));
72	return VERR_INVALID_PARAMETER;
73	}
74	cb = RT_ALIGN_Z(cb, _4M);
75	RTGCPTR GCPtrLast = GCPtr + cb - 1;
76	if (GCPtrLast < GCPtr)
77	{
78	AssertMsgFailed(("Range wraps! GCPtr=%x GCPtrLast=%x\n", GCPtr, GCPtrLast));
79	return VERR_INVALID_PARAMETER;
80	}
81	if (pVM->pgm.s.fMappingsFixed)
82	{
83	AssertMsgFailed(("Mappings are fixed! It's not possible to add new mappings at this time!\n"));
84	return VERR_PGM_MAPPINGS_FIXED;
85	}
86	if (!pfnRelocate)
87	{
88	AssertMsgFailed(("Callback is required\n"));
89	return VERR_INVALID_PARAMETER;
90	}
91
92	/*
93	* Find list location.
94	*/
95	PPGMMAPPING pPrev = NULL;
96	PPGMMAPPING pCur = pVM->pgm.s.pMappingsHC;
97	while (pCur)
98	{
99	if (pCur->GCPtrLast >= GCPtr && pCur->GCPtr <= GCPtrLast)
100	{
101	AssertMsgFailed(("Address is already in use by %s. req %#x-%#x take %#x-%#x\n",
102	pCur->pszDesc, GCPtr, GCPtrLast, pCur->GCPtr, pCur->GCPtrLast));
103	LogRel(("VERR_PGM_MAPPING_CONFLICT: Address is already in use by %s. req %#x-%#x take %#x-%#x\n",
104	pCur->pszDesc, GCPtr, GCPtrLast, pCur->GCPtr, pCur->GCPtrLast));
105	return VERR_PGM_MAPPING_CONFLICT;
106	}
107	if (pCur->GCPtr > GCPtr)
108	break;
109	pPrev = pCur;
110	pCur = pCur->pNextHC;
111	}
112
113	/*
114	* Check for conflicts with intermediate mappings.
115	*/
116	const unsigned iPageDir = GCPtr >> PGDIR_SHIFT;
117	const unsigned cPTs = cb >> PGDIR_SHIFT;
118	unsigned i;
119	for (i = 0; i < cPTs; i++)
120	{
121	if (pVM->pgm.s.pInterPD->a[iPageDir + i].n.u1Present)
122	{
123	AssertMsgFailed(("Address %#x is already in use by an intermediate mapping.\n", GCPtr + (i << PAGE_SHIFT)));
124	LogRel(("VERR_PGM_MAPPING_CONFLICT: Address %#x is already in use by an intermediate mapping.\n", GCPtr + (i << PAGE_SHIFT)));
125	return VERR_PGM_MAPPING_CONFLICT;
126	}
127	}
128	/** @todo AMD64: add check in PAE structures too, so we can remove all the 32-Bit paging stuff there. */
129
130	/*
131	* Allocate and initialize the new list node.
132	*/
133	PPGMMAPPING pNew;
134	int rc = MMHyperAlloc(pVM, RT_OFFSETOF(PGMMAPPING, aPTs[cPTs]), 0, MM_TAG_PGM, (void **)&pNew);
135	if (VBOX_FAILURE(rc))
136	return rc;
137	pNew->GCPtr = GCPtr;
138	pNew->GCPtrLast = GCPtrLast;
139	pNew->cb = cb;
140	pNew->pszDesc = pszDesc;
141	pNew->pfnRelocate = pfnRelocate;
142	pNew->pvUser = pvUser;
143	pNew->cPTs = cPTs;
144
145	/*
146	* Allocate page tables and insert them into the page directories.
147	* (One 32-bit PT and two PAE PTs.)
148	*/
149	uint8_t *pbPTs;
150	rc = MMHyperAlloc(pVM, PAGE_SIZE * 3 * cPTs, PAGE_SIZE, MM_TAG_PGM, (void **)&pbPTs);
151	if (VBOX_FAILURE(rc))
152	{
153	MMHyperFree(pVM, pNew);
154	return VERR_NO_MEMORY;
155	}
156
157	/*
158	* Init the page tables and insert them into the page directories.
159	*/
160	Log4(("PGMR3MapPT: GCPtr=%VGv cPTs=%u pbPTs=%p\n", GCPtr, cPTs, pbPTs));
161	for (i = 0; i < cPTs; i++)
162	{
163	/*
164	* 32-bit.
165	*/
166	pNew->aPTs[i].pPTHC = (PVBOXPT)pbPTs;
167	pNew->aPTs[i].pPTGC = MMHyperHC2GC(pVM, pNew->aPTs[i].pPTHC);
168	pNew->aPTs[i].HCPhysPT = MMR3HyperHCVirt2HCPhys(pVM, pNew->aPTs[i].pPTHC);
169	pbPTs += PAGE_SIZE;
170	Log4(("PGMR3MapPT: i=%d: pPTHC=%p pPTGC=%p HCPhysPT=%RHp\n",
171	i, pNew->aPTs[i].pPTHC, pNew->aPTs[i].pPTGC, pNew->aPTs[i].HCPhysPT));
172
173	/*
174	* PAE.
175	*/
176	pNew->aPTs[i].HCPhysPaePT0 = MMR3HyperHCVirt2HCPhys(pVM, pbPTs);
177	pNew->aPTs[i].HCPhysPaePT1 = MMR3HyperHCVirt2HCPhys(pVM, pbPTs + PAGE_SIZE);
178	pNew->aPTs[i].paPaePTsHC = (PX86PTPAE)pbPTs;
179	pNew->aPTs[i].paPaePTsGC = MMHyperHC2GC(pVM, pbPTs);
180	pbPTs += PAGE_SIZE * 2;
181	Log4(("PGMR3MapPT: i=%d: paPaePTsHC=%p paPaePTsGC=%p HCPhysPaePT0=%RHp HCPhysPaePT1=%RHp\n",
182	i, pNew->aPTs[i].paPaePTsHC, pNew->aPTs[i].paPaePTsGC, pNew->aPTs[i].HCPhysPaePT0, pNew->aPTs[i].HCPhysPaePT1));
183	}
184	pgmR3MapSetPDEs(pVM, pNew, iPageDir);
185
186	/*
187	* Insert the new mapping.
188	*/
189	pNew->pNextHC = pCur;
190	pNew->pNextGC = pCur ? MMHyperHC2GC(pVM, pCur) : 0;
191	if (pPrev)
192	{
193	pPrev->pNextHC = pNew;
194	pPrev->pNextGC = MMHyperHC2GC(pVM, pNew);
195	}
196	else
197	{
198	pVM->pgm.s.pMappingsHC = pNew;
199	pVM->pgm.s.pMappingsGC = MMHyperHC2GC(pVM, pNew);
200	}
201
202	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
203	return VINF_SUCCESS;
204	}
205
206
207	/**
208	* Removes a page table based mapping.
209	*
210	* @returns VBox status code.
211	* @param pVM VM Handle.
212	* @param GCPtr Virtual Address. (Page table aligned!)
213	*/
214	PGMR3DECL(int) PGMR3UnmapPT(PVM pVM, RTGCPTR GCPtr)
215	{
216	LogFlow(("PGMR3UnmapPT: GCPtr=%#x\n", GCPtr));
217
218	/*
219	* Find it.
220	*/
221	PPGMMAPPING pPrev = NULL;
222	PPGMMAPPING pCur = pVM->pgm.s.pMappingsHC;
223	while (pCur)
224	{
225	if (pCur->GCPtr == GCPtr)
226	{
227	/*
228	* Unlink it.
229	*/
230	if (pPrev)
231	{
232	pPrev->pNextHC = pCur->pNextHC;
233	pPrev->pNextGC = pCur->pNextGC;
234	}
235	else
236	{
237	pVM->pgm.s.pMappingsHC = pCur->pNextHC;
238	pVM->pgm.s.pMappingsGC = pCur->pNextGC;
239	}
240
241	/*
242	* Free the page table memory, clear page directory entries
243	* and free the page tables and node memory.
244	*/
245	MMHyperFree(pVM, pCur->aPTs[0].pPTHC);
246	pgmR3MapClearPDEs(&pVM->pgm.s, pCur, pCur->GCPtr >> PGDIR_SHIFT);
247	MMHyperFree(pVM, pCur);
248
249	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
250	return VINF_SUCCESS;
251	}
252
253	/* done? */
254	if (pCur->GCPtr > GCPtr)
255	break;
256
257	/* next */
258	pPrev = pCur;
259	pCur = pCur->pNextHC;
260	}
261
262	AssertMsgFailed(("No mapping for %#x found!\n", GCPtr));
263	return VERR_INVALID_PARAMETER;
264	}
265
266
267	/**
268	* Gets the size of the current guest mappings if they were to be
269	* put next to oneanother.
270	*
271	* @returns VBox status code.
272	* @param pVM The VM.
273	* @param pcb Where to store the size.
274	*/
275	PGMR3DECL(int) PGMR3MappingsSize(PVM pVM, size_t *pcb)
276	{
277	size_t cb = 0;
278	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsHC; pCur; pCur = pCur->pNextHC)
279	cb += pCur->cb;
280
281	*pcb = cb;
282	Log(("PGMR3MappingsSize: return %d (%#x) bytes\n", cb, cb));
283	return VINF_SUCCESS;
284	}
285
286
287	/**
288	* Fixes the guest context mappings in a range reserved from the Guest OS.
289	*
290	* @returns VBox status code.
291	* @param pVM The VM.
292	* @param GCPtrBase The address of the reserved range of guest memory.
293	* @param cb The size of the range starting at GCPtrBase.
294	*/
295	PGMR3DECL(int) PGMR3MappingsFix(PVM pVM, RTGCPTR GCPtrBase, size_t cb)
296	{
297	Log(("PGMR3MappingsFix: GCPtrBase=%#x cb=%#x\n", GCPtrBase, cb));
298
299	/*
300	* This is all or nothing at all. So, a tiny bit of paranoia first.
301	*/
302	if (GCPtrBase & PAGE_OFFSET_MASK_BIG)
303	{
304	AssertMsgFailed(("GCPtrBase (%#x) has to be aligned on a 4MB address!\n", GCPtrBase));
305	return VERR_INVALID_PARAMETER;
306	}
307	if (!cb \|\| (cb & PAGE_OFFSET_MASK_BIG))
308	{
309	AssertMsgFailed(("cb (%#x) is 0 or not aligned on a 4MB address!\n", cb));
310	return VERR_INVALID_PARAMETER;
311	}
312
313	/*
314	* Before we do anything we'll do a forced PD sync to try make sure any
315	* pending relocations because of these mappings have been resolved.
316	*/
317	PGMSyncCR3(pVM, CPUMGetGuestCR0(pVM), CPUMGetGuestCR3(pVM), CPUMGetGuestCR4(pVM), true);
318
319	/*
320	* Check that it's not conflicting with a core code mapping in the intermediate page table.
321	*/
322	unsigned iPDNew = GCPtrBase >> PGDIR_SHIFT;
323	unsigned i = cb >> PGDIR_SHIFT;
324	while (i-- > 0)
325	{
326	if (pVM->pgm.s.pInterPD->a[iPDNew + i].n.u1Present)
327	{
328	/* Check that it's not one or our mappings. */
329	PPGMMAPPING pCur = pVM->pgm.s.pMappingsHC;
330	while (pCur)
331	{
332	if (iPDNew + i - (pCur->GCPtr >> PGDIR_SHIFT) < (pCur->cb >> PGDIR_SHIFT))
333	break;
334	pCur = pCur->pNextHC;
335	}
336	if (!pCur)
337	{
338	LogRel(("PGMR3MappingsFix: Conflicts with intermediate PDE %#x (GCPtrBase=%VGv cb=%#zx). The guest should retry.\n",
339	iPDNew + i, GCPtrBase, cb));
340	return VERR_PGM_MAPPINGS_FIX_CONFLICT;
341	}
342	}
343	}
344
345	/*
346	* Loop the mappings and check that they all agree on their new locations.
347	*/
348	RTGCPTR GCPtrCur = GCPtrBase;
349	PPGMMAPPING pCur = pVM->pgm.s.pMappingsHC;
350	while (pCur)
351	{
352	if (!pCur->pfnRelocate(pVM, pCur->GCPtr, GCPtrCur, PGMRELOCATECALL_SUGGEST, pCur->pvUser))
353	{
354	AssertMsgFailed(("The suggested fixed address %#x was rejected by '%s'!\n", GCPtrCur, pCur->pszDesc));
355	return VERR_PGM_MAPPINGS_FIX_REJECTED;
356	}
357	/* next */
358	GCPtrCur += pCur->cb;
359	pCur = pCur->pNextHC;
360	}
361	if (GCPtrCur > GCPtrBase + cb)
362	{
363	AssertMsgFailed(("cb (%#x) is less than the required range %#x!\n", cb, GCPtrCur - GCPtrBase));
364	return VERR_PGM_MAPPINGS_FIX_TOO_SMALL;
365	}
366
367	/*
368	* Loop the table assigning the mappings to the passed in memory
369	* and call their relocator callback.
370	*/
371	GCPtrCur = GCPtrBase;
372	pCur = pVM->pgm.s.pMappingsHC;
373	while (pCur)
374	{
375	unsigned iPDOld = pCur->GCPtr >> PGDIR_SHIFT;
376	iPDNew = GCPtrCur >> PGDIR_SHIFT;
377
378	/*
379	* Relocate the page table(s).
380	*/
381	pgmR3MapClearPDEs(&pVM->pgm.s, pCur, iPDOld);
382	pgmR3MapSetPDEs(pVM, pCur, iPDNew);
383
384	/*
385	* Update the entry.
386	*/
387	pCur->GCPtr = GCPtrCur;
388	pCur->GCPtrLast = GCPtrCur + pCur->cb - 1;
389
390	/*
391	* Callback to execute the relocation.
392	*/
393	pCur->pfnRelocate(pVM, iPDOld << PGDIR_SHIFT, iPDNew << PGDIR_SHIFT, PGMRELOCATECALL_RELOCATE, pCur->pvUser);
394
395	/*
396	* Advance.
397	*/
398	GCPtrCur += pCur->cb;
399	pCur = pCur->pNextHC;
400	}
401
402	/*
403	* Turn off CR3 updating monitoring.
404	*/
405	int rc2 = PGM_GST_PFN(UnmonitorCR3, pVM)(pVM);
406	AssertRC(rc2);
407
408	/*
409	* Mark the mappings as fixed and return.
410	*/
411	pVM->pgm.s.fMappingsFixed = true;
412	pVM->pgm.s.GCPtrMappingFixed = GCPtrBase;
413	pVM->pgm.s.cbMappingFixed = cb;
414	pVM->pgm.s.fSyncFlags &= ~PGM_SYNC_MONITOR_CR3;
415	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
416	return VINF_SUCCESS;
417	}
418
419
420	/**
421	* Unfixes the mappings.
422	* After calling this function mapping conflict detection will be enabled.
423	*
424	* @returns VBox status code.
425	* @param pVM The VM.
426	*/
427	PGMR3DECL(int) PGMR3MappingsUnfix(PVM pVM)
428	{
429	Log(("PGMR3MappingsUnfix: fMappingsFixed=%d\n", pVM->pgm.s.fMappingsFixed));
430	pVM->pgm.s.fMappingsFixed = false;
431	pVM->pgm.s.GCPtrMappingFixed = 0;
432	pVM->pgm.s.cbMappingFixed = 0;
433	VM_FF_SET(pVM, VM_FF_PGM_SYNC_CR3);
434
435	/*
436	* Re-enable the CR3 monitoring.
437	*
438	* Paranoia: We flush the page pool before doing that because Windows
439	* is using the CR3 page both as a PD and a PT, e.g. the pool may
440	* be monitoring it.
441	*/
442	#ifdef PGMPOOL_WITH_MONITORING
443	pgmPoolFlushAll(pVM);
444	#endif
445	int rc = PGM_GST_PFN(MonitorCR3, pVM)(pVM, pVM->pgm.s.GCPhysCR3);
446	AssertRC(rc);
447
448	return VINF_SUCCESS;
449	}
450
451
452	/**
453	* Map pages into the intermediate context (switcher code).
454	* These pages are mapped at both the give virtual address and at
455	* the physical address (for identity mapping).
456	*
457	* @returns VBox status code.
458	* @param pVM The virtual machine.
459	* @param Addr Intermediate context address of the mapping.
460	* @param HCPhys Start of the range of physical pages. This must be entriely below 4GB!
461	* @param cbPages Number of bytes to map.
462	*
463	* @remark This API shall not be used to anything but mapping the switcher code.
464	*/
465	PGMR3DECL(int) PGMR3MapIntermediate(PVM pVM, RTUINTPTR Addr, RTHCPHYS HCPhys, unsigned cbPages)
466	{
467	LogFlow(("PGMR3MapIntermediate: Addr=%RTptr HCPhys=%VHp cbPages=%#x\n", Addr, HCPhys, cbPages));
468
469	/*
470	* Adjust input.
471	*/
472	cbPages += (uint32_t)HCPhys & PAGE_OFFSET_MASK;
473	cbPages = RT_ALIGN(cbPages, PAGE_SIZE);
474	HCPhys &= X86_PTE_PAE_PG_MASK;
475	Addr &= PAGE_BASE_MASK;
476	/* We only care about the first 4GB, because on AMD64 we'll be repeating them all over the address space. */
477	uint32_t uAddress = (uint32_t)Addr;
478
479	/*
480	* Assert input and state.
481	*/
482	AssertMsg(pVM->pgm.s.offVM, ("Bad init order\n"));
483	AssertMsg(pVM->pgm.s.pInterPD, ("Bad init order, paging.\n"));
484	AssertMsg(cbPages <= (512 << PAGE_SHIFT), ("The mapping is too big %d bytes\n", cbPages));
485	AssertMsg(HCPhys < _4G && HCPhys + cbPages < _4G, ("Addr=%RTptr HCPhys=%VHp cbPages=%d\n", Addr, HCPhys, cbPages));
486
487	/*
488	* Check for internal conflicts between the virtual address and the physical address.
489	*/
490	if ( uAddress != HCPhys
491	&& ( uAddress < HCPhys
492	? HCPhys - uAddress < cbPages
493	: uAddress - HCPhys < cbPages
494	)
495	)
496	{
497	AssertMsgFailed(("Addr=%RTptr HCPhys=%VHp cbPages=%d\n", Addr, HCPhys, cbPages));
498	LogRel(("Addr=%RTptr HCPhys=%VHp cbPages=%d\n", Addr, HCPhys, cbPages));
499	return VERR_PGM_MAPPINGS_FIX_CONFLICT; /** @todo new error code */
500	}
501
502	/* The intermediate mapping must not conflict with our default hypervisor address. */
503	size_t cbHyper;
504	RTGCPTR pvHyperGC = MMHyperGetArea(pVM, &cbHyper);
505	if (uAddress < pvHyperGC
506	? uAddress + cbPages > pvHyperGC
507	: pvHyperGC + cbHyper > uAddress
508	)
509	{
510	AssertMsgFailed(("Addr=%RTptr HyperGC=%VGv cbPages=%zu\n", Addr, pvHyperGC, cbPages));
511	LogRel(("Addr=%RTptr HyperGC=%VGv cbPages=%zu\n", Addr, pvHyperGC, cbPages));
512	return VERR_PGM_MAPPINGS_FIX_CONFLICT; /** @todo new error code */
513	}
514
515	const unsigned cPages = cbPages >> PAGE_SHIFT;
516	int rc = pgmR3MapIntermediateCheckOne(pVM, uAddress, cPages, pVM->pgm.s.apInterPTs[0], pVM->pgm.s.apInterPaePTs[0]);
517	if (VBOX_FAILURE(rc))
518	return rc;
519	rc = pgmR3MapIntermediateCheckOne(pVM, (uintptr_t)HCPhys, cPages, pVM->pgm.s.apInterPTs[1], pVM->pgm.s.apInterPaePTs[1]);
520	if (VBOX_FAILURE(rc))
521	return rc;
522
523	/*
524	* Everythings fine, do the mapping.
525	*/
526	pgmR3MapIntermediateDoOne(pVM, uAddress, HCPhys, cPages, pVM->pgm.s.apInterPTs[0], pVM->pgm.s.apInterPaePTs[0]);
527	pgmR3MapIntermediateDoOne(pVM, (uintptr_t)HCPhys, HCPhys, cPages, pVM->pgm.s.apInterPTs[1], pVM->pgm.s.apInterPaePTs[1]);
528
529	return VINF_SUCCESS;
530	}
531
532
533	/**
534	* Validates that there are no conflicts for this mapping into the intermediate context.
535	*
536	* @returns VBox status code.
537	* @param pVM VM handle.
538	* @param uAddress Address of the mapping.
539	* @param cPages Number of pages.
540	* @param pPTDefault Pointer to the default page table for this mapping.
541	* @param pPTPaeDefault Pointer to the default page table for this mapping.
542	*/
543	static int pgmR3MapIntermediateCheckOne(PVM pVM, uintptr_t uAddress, unsigned cPages, PX86PT pPTDefault, PX86PTPAE pPTPaeDefault)
544	{
545	AssertMsg((uAddress >> X86_PD_SHIFT) + cPages <= 1024, ("64-bit fixme\n"));
546
547	/*
548	* Check that the ranges are available.
549	* (This codes doesn't have to be fast.)
550	*/
551	while (cPages > 0)
552	{
553	/*
554	* 32-Bit.
555	*/
556	unsigned iPDE = (uAddress >> X86_PD_SHIFT) & X86_PD_MASK;
557	unsigned iPTE = (uAddress >> X86_PT_SHIFT) & X86_PT_MASK;
558	PX86PT pPT = pPTDefault;
559	if (pVM->pgm.s.pInterPD->a[iPDE].u)
560	{
561	RTHCPHYS HCPhysPT = pVM->pgm.s.pInterPD->a[iPDE].u & X86_PDE_PG_MASK;
562	if (HCPhysPT == MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[0]))
563	pPT = pVM->pgm.s.apInterPTs[0];
564	else if (HCPhysPT == MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[1]))
565	pPT = pVM->pgm.s.apInterPTs[1];
566	else
567	{
568	/** @todo this must be handled with a relocation of the conflicting mapping!
569	* Which of course cannot be done because we're in the middle of the initialization. bad design! */
570	AssertMsgFailed(("Conflict between core code and PGMR3Mapping(). uAddress=%VHv\n", uAddress));
571	LogRel(("Conflict between core code and PGMR3Mapping(). uAddress=%VHv\n", uAddress));
572	return VERR_PGM_MAPPINGS_FIX_CONFLICT; /** @todo error codes! */
573	}
574	}
575	if (pPT->a[iPTE].u)
576	{
577	AssertMsgFailed(("Conflict iPTE=%#x iPDE=%#x uAddress=%VHv pPT->a[iPTE].u=%RX32\n", iPTE, iPDE, uAddress, pPT->a[iPTE].u));
578	LogRel(("Conflict iPTE=%#x iPDE=%#x uAddress=%VHv pPT->a[iPTE].u=%RX32\n",
579	iPTE, iPDE, uAddress, pPT->a[iPTE].u));
580	return VERR_PGM_MAPPINGS_FIX_CONFLICT; /** @todo error codes! */
581	}
582
583	/*
584	* PAE.
585	*/
586	const unsigned iPDPE= (uAddress >> X86_PDPTR_SHIFT) & X86_PDPTR_MASK;
587	iPDE = (uAddress >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
588	iPTE = (uAddress >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
589	Assert(iPDPE < 4);
590	Assert(pVM->pgm.s.apInterPaePDs[iPDPE]);
591	PX86PTPAE pPTPae = pPTPaeDefault;
592	if (pVM->pgm.s.apInterPaePDs[iPDPE]->a[iPDE].u)
593	{
594	RTHCPHYS HCPhysPT = pVM->pgm.s.apInterPaePDs[iPDPE]->a[iPDE].u & X86_PDE_PAE_PG_MASK;
595	if (HCPhysPT == MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[0]))
596	pPTPae = pVM->pgm.s.apInterPaePTs[0];
597	else if (HCPhysPT == MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[0]))
598	pPTPae = pVM->pgm.s.apInterPaePTs[1];
599	else
600	{
601	/** @todo this must be handled with a relocation of the conflicting mapping!
602	* Which of course cannot be done because we're in the middle of the initialization. bad design! */
603	AssertMsgFailed(("Conflict between core code and PGMR3Mapping(). uAddress=%VHv\n", uAddress));
604	LogRel(("Conflict between core code and PGMR3Mapping(). uAddress=%VHv\n", uAddress));
605	return VERR_PGM_MAPPINGS_FIX_CONFLICT; /** @todo error codes! */
606	}
607	}
608	if (pPTPae->a[iPTE].u)
609	{
610	AssertMsgFailed(("Conflict iPTE=%#x iPDE=%#x uAddress=%VHv pPTPae->a[iPTE].u=%#RX64\n", iPTE, iPDE, uAddress, pPTPae->a[iPTE].u));
611	LogRel(("Conflict iPTE=%#x iPDE=%#x uAddress=%VHv pPTPae->a[iPTE].u=%#RX64\n",
612	iPTE, iPDE, uAddress, pPTPae->a[iPTE].u));
613	return VERR_PGM_MAPPINGS_FIX_CONFLICT; /** @todo error codes! */
614	}
615
616	/* next */
617	uAddress += PAGE_SIZE;
618	cPages--;
619	}
620
621	return VINF_SUCCESS;
622	}
623
624
625
626	/**
627	* Sets up the intermediate page tables for a verified mapping.
628	*
629	* @param pVM VM handle.
630	* @param uAddress Address of the mapping.
631	* @param HCPhys The physical address of the page range.
632	* @param cPages Number of pages.
633	* @param pPTDefault Pointer to the default page table for this mapping.
634	* @param pPTPaeDefault Pointer to the default page table for this mapping.
635	*/
636	static void pgmR3MapIntermediateDoOne(PVM pVM, uintptr_t uAddress, RTHCPHYS HCPhys, unsigned cPages, PX86PT pPTDefault, PX86PTPAE pPTPaeDefault)
637	{
638	while (cPages > 0)
639	{
640	/*
641	* 32-Bit.
642	*/
643	unsigned iPDE = (uAddress >> X86_PD_SHIFT) & X86_PD_MASK;
644	unsigned iPTE = (uAddress >> X86_PT_SHIFT) & X86_PT_MASK;
645	PX86PT pPT;
646	if (pVM->pgm.s.pInterPD->a[iPDE].u)
647	pPT = (PX86PT)MMPagePhys2Page(pVM, pVM->pgm.s.pInterPD->a[iPDE].u & X86_PDE_PG_MASK);
648	else
649	{
650	pVM->pgm.s.pInterPD->a[iPDE].u = X86_PDE_P \| X86_PDE_A \| X86_PDE_RW
651	\| (uint32_t)MMPage2Phys(pVM, pPTDefault);
652	pPT = pPTDefault;
653	}
654	pPT->a[iPTE].u = X86_PTE_P \| X86_PTE_RW \| X86_PTE_A \| X86_PTE_D \| (uint32_t)HCPhys;
655
656	/*
657	* PAE
658	*/
659	const unsigned iPDPE= (uAddress >> X86_PDPTR_SHIFT) & X86_PDPTR_MASK;
660	iPDE = (uAddress >> X86_PD_PAE_SHIFT) & X86_PD_PAE_MASK;
661	iPTE = (uAddress >> X86_PT_PAE_SHIFT) & X86_PT_PAE_MASK;
662	Assert(iPDPE < 4);
663	Assert(pVM->pgm.s.apInterPaePDs[iPDPE]);
664	PX86PTPAE pPTPae;
665	if (pVM->pgm.s.apInterPaePDs[iPDPE]->a[iPDE].u)
666	pPTPae = (PX86PTPAE)MMPagePhys2Page(pVM, pVM->pgm.s.apInterPaePDs[iPDPE]->a[iPDE].u & X86_PDE_PAE_PG_MASK);
667	else
668	{
669	pPTPae = pPTPaeDefault;
670	pVM->pgm.s.apInterPaePDs[iPDPE]->a[iPDE].u = X86_PDE_P \| X86_PDE_A \| X86_PDE_RW
671	\| MMPage2Phys(pVM, pPTPaeDefault);
672	}
673	pPTPae->a[iPTE].u = X86_PTE_P \| X86_PTE_RW \| X86_PTE_A \| X86_PTE_D \| HCPhys;
674
675	/* next */
676	cPages--;
677	HCPhys += PAGE_SIZE;
678	uAddress += PAGE_SIZE;
679	}
680	}
681
682
683	/**
684	* Clears all PDEs involved with the mapping.
685	*
686	* @param pPGM Pointer to the PGM instance data.
687	* @param pMap Pointer to the mapping in question.
688	* @param iOldPDE The index of the 32-bit PDE corresponding to the base of the mapping.
689	*/
690	static void pgmR3MapClearPDEs(PPGM pPGM, PPGMMAPPING pMap, int iOldPDE)
691	{
692	unsigned i = pMap->cPTs;
693	iOldPDE += i;
694	while (i-- > 0)
695	{
696	iOldPDE--;
697
698	/*
699	* 32-bit.
700	*/
701	pPGM->pInterPD->a[iOldPDE].u = 0;
702	pPGM->pHC32BitPD->a[iOldPDE].u = 0;
703
704	/*
705	* PAE.
706	*/
707	const int iPD = iOldPDE / 256;
708	int iPDE = iOldPDE * 2 % 512;
709	pPGM->apInterPaePDs[iPD]->a[iPDE].u = 0;
710	pPGM->apHCPaePDs[iPD]->a[iPDE].u = 0;
711	iPDE++;
712	pPGM->apInterPaePDs[iPD]->a[iPDE].u = 0;
713	pPGM->apHCPaePDs[iPD]->a[iPDE].u = 0;
714	}
715	}
716
717
718	/**
719	* Sets all PDEs involved with the mapping.
720	*
721	* @param pVM The VM handle.
722	* @param pMap Pointer to the mapping in question.
723	* @param iNewPDE The index of the 32-bit PDE corresponding to the base of the mapping.
724	*/
725	static void pgmR3MapSetPDEs(PVM pVM, PPGMMAPPING pMap, int iNewPDE)
726	{
727	PPGM pPGM = &pVM->pgm.s;
728
729	/* If mappings are not supposed to be put in the shadow page table, then this function is a nop. */
730	if (!pgmMapAreMappingsEnabled(&pVM->pgm.s))
731	return;
732
733	/*
734	* Init the page tables and insert them into the page directories.
735	*/
736	unsigned i = pMap->cPTs;
737	iNewPDE += i;
738	while (i-- > 0)
739	{
740	iNewPDE--;
741
742	/*
743	* 32-bit.
744	*/
745	if (pPGM->pHC32BitPD->a[iNewPDE].n.u1Present)
746	pgmPoolFree(pVM, pPGM->pHC32BitPD->a[iNewPDE].n.u1Present & X86_PDE_PG_MASK, PGMPOOL_IDX_PD, iNewPDE);
747	X86PDE Pde;
748	/* Default mapping page directory flags are read/write and supervisor; individual page attributes determine the final flags */
749	Pde.u = PGM_PDFLAGS_MAPPING \| X86_PDE_P \| X86_PDE_A \| X86_PDE_RW \| X86_PDE_US \| (uint32_t)pMap->aPTs[i].HCPhysPT;
750	pPGM->pInterPD->a[iNewPDE] = Pde;
751	pPGM->pHC32BitPD->a[iNewPDE] = Pde;
752
753	/*
754	* PAE.
755	*/
756	const int iPD = iNewPDE / 256;
757	int iPDE = iNewPDE * 2 % 512;
758	if (pPGM->apHCPaePDs[iPD]->a[iPDE].n.u1Present)
759	pgmPoolFree(pVM, pPGM->apHCPaePDs[iPD]->a[iPDE].n.u1Present & X86_PDE_PAE_PG_MASK, PGMPOOL_IDX_PAE_PD, iNewPDE * 2);
760	X86PDEPAE PdePae0;
761	PdePae0.u = PGM_PDFLAGS_MAPPING \| X86_PDE_P \| X86_PDE_A \| X86_PDE_RW \| X86_PDE_US \| pMap->aPTs[i].HCPhysPaePT0;
762	pPGM->apInterPaePDs[iPD]->a[iPDE] = PdePae0;
763	pPGM->apHCPaePDs[iPD]->a[iPDE] = PdePae0;
764
765	iPDE++;
766	if (pPGM->apHCPaePDs[iPD]->a[iPDE].n.u1Present)
767	pgmPoolFree(pVM, pPGM->apHCPaePDs[iPD]->a[iPDE].n.u1Present & X86_PDE_PAE_PG_MASK, PGMPOOL_IDX_PAE_PD, iNewPDE * 2 + 1);
768	X86PDEPAE PdePae1;
769	PdePae1.u = PGM_PDFLAGS_MAPPING \| X86_PDE_P \| X86_PDE_A \| X86_PDE_RW \| X86_PDE_US \| pMap->aPTs[i].HCPhysPaePT1;
770	pPGM->apInterPaePDs[iPD]->a[iPDE] = PdePae1;
771	pPGM->apHCPaePDs[iPD]->a[iPDE] = PdePae1;
772	}
773	}
774
775	/**
776	* Relocates a mapping to a new address.
777	*
778	* @param pVM VM handle.
779	* @param pMapping The mapping to relocate.
780	* @param iPDOld Old page directory index.
781	* @param iPDNew New page directory index.
782	*/
783	void pgmR3MapRelocate(PVM pVM, PPGMMAPPING pMapping, int iPDOld, int iPDNew)
784	{
785	Log(("PGM: Relocating %s from %#x to %#x\n", pMapping->pszDesc, iPDOld << PGDIR_SHIFT, iPDNew << PGDIR_SHIFT));
786	Assert(((unsigned)iPDOld << PGDIR_SHIFT) == pMapping->GCPtr);
787
788	/*
789	* Relocate the page table(s).
790	*/
791	pgmR3MapClearPDEs(&pVM->pgm.s, pMapping, iPDOld);
792	pgmR3MapSetPDEs(pVM, pMapping, iPDNew);
793
794	/*
795	* Update and resort the mapping list.
796	*/
797
798	/* Find previous mapping for pMapping, put result into pPrevMap. */
799	PPGMMAPPING pPrevMap = NULL;
800	PPGMMAPPING pCur = pVM->pgm.s.pMappingsHC;
801	while (pCur && pCur != pMapping)
802	{
803	/* next */
804	pPrevMap = pCur;
805	pCur = pCur->pNextHC;
806	}
807	Assert(pCur);
808
809	/* Find mapping which >= than pMapping. */
810	RTGCPTR GCPtrNew = iPDNew << PGDIR_SHIFT;
811	PPGMMAPPING pPrev = NULL;
812	pCur = pVM->pgm.s.pMappingsHC;
813	while (pCur && pCur->GCPtr < GCPtrNew)
814	{
815	/* next */
816	pPrev = pCur;
817	pCur = pCur->pNextHC;
818	}
819
820	if (pCur != pMapping && pPrev != pMapping)
821	{
822	/*
823	* Unlink.
824	*/
825	if (pPrevMap)
826	{
827	pPrevMap->pNextHC = pMapping->pNextHC;
828	pPrevMap->pNextGC = pMapping->pNextGC;
829	}
830	else
831	{
832	pVM->pgm.s.pMappingsHC = pMapping->pNextHC;
833	pVM->pgm.s.pMappingsGC = pMapping->pNextGC;
834	}
835
836	/*
837	* Link
838	*/
839	pMapping->pNextHC = pCur;
840	if (pPrev)
841	{
842	pMapping->pNextGC = pPrev->pNextGC;
843	pPrev->pNextHC = pMapping;
844	pPrev->pNextGC = MMHyperHC2GC(pVM, pMapping);
845	}
846	else
847	{
848	pMapping->pNextGC = pVM->pgm.s.pMappingsGC;
849	pVM->pgm.s.pMappingsHC = pMapping;
850	pVM->pgm.s.pMappingsGC = MMHyperHC2GC(pVM, pMapping);
851	}
852	}
853
854	/*
855	* Update the entry.
856	*/
857	pMapping->GCPtr = GCPtrNew;
858	pMapping->GCPtrLast = GCPtrNew + pMapping->cb - 1;
859
860	/*
861	* Callback to execute the relocation.
862	*/
863	pMapping->pfnRelocate(pVM, iPDOld << PGDIR_SHIFT, iPDNew << PGDIR_SHIFT, PGMRELOCATECALL_RELOCATE, pMapping->pvUser);
864	}
865
866
867	/**
868	* Resolves a conflict between a page table based GC mapping and
869	* the Guest OS page tables.
870	*
871	* @returns VBox status code.
872	* @param pVM VM Handle.
873	* @param pMapping The mapping which conflicts.
874	* @param pPDSrc The page directory of the guest OS.
875	* @param iPDOld The index to the start of the current mapping.
876	*/
877	int pgmR3SyncPTResolveConflict(PVM pVM, PPGMMAPPING pMapping, PVBOXPD pPDSrc, int iPDOld)
878	{
879	STAM_PROFILE_START(&pVM->pgm.s.StatHCResolveConflict, a);
880
881	/*
882	* Scan for free page directory entries.
883	*
884	* Note that we do not support mappings at the very end of the
885	* address space since that will break our GCPtrEnd assumptions.
886	*/
887	const unsigned cPTs = pMapping->cPTs;
888	unsigned iPDNew = ELEMENTS(pPDSrc->a) - cPTs; /* (+ 1 - 1) */
889	while (iPDNew-- > 0)
890	{
891	if (pPDSrc->a[iPDNew].n.u1Present)
892	continue;
893	if (cPTs > 1)
894	{
895	bool fOk = true;
896	for (unsigned i = 1; fOk && i < cPTs; i++)
897	if (pPDSrc->a[iPDNew + i].n.u1Present)
898	fOk = false;
899	if (!fOk)
900	continue;
901	}
902
903	/*
904	* Check that it's not conflicting with an intermediate page table mapping.
905	*/
906	bool fOk = true;
907	unsigned i = cPTs;
908	while (fOk && i-- > 0)
909	fOk = !pVM->pgm.s.pInterPD->a[iPDNew + i].n.u1Present;
910	if (!fOk)
911	continue;
912	/** @todo AMD64 should check the PAE directories and skip the 32bit stuff. */
913
914	/*
915	* Ask the mapping.
916	*/
917	if (pMapping->pfnRelocate(pVM, iPDOld << PGDIR_SHIFT, iPDNew << PGDIR_SHIFT, PGMRELOCATECALL_SUGGEST, pMapping->pvUser))
918	{
919	pgmR3MapRelocate(pVM, pMapping, iPDOld, iPDNew);
920	STAM_PROFILE_STOP(&pVM->pgm.s.StatHCResolveConflict, a);
921	return VINF_SUCCESS;
922	}
923	}
924
925	STAM_PROFILE_STOP(&pVM->pgm.s.StatHCResolveConflict, a);
926	AssertMsgFailed(("Failed to relocate page table mapping '%s' from %#x! (cPTs=%d)\n", pMapping->pszDesc, iPDOld << PGDIR_SHIFT, cPTs));
927	return VERR_PGM_NO_HYPERVISOR_ADDRESS;
928	}
929
930
931
932	/**
933	* Checks guest PD for conflicts with VMM GC mappings.
934	*
935	* @returns true if conflict detected.
936	* @returns false if not.
937	* @param pVM The virtual machine.
938	* @param cr3 Guest context CR3 register.
939	* @param fRawR0 Whether RawR0 is enabled or not.
940	*/
941	PGMR3DECL(bool) PGMR3MapHasConflicts(PVM pVM, uint32_t cr3, bool fRawR0) /** @todo how many HasConflict constructs do we really need? */
942	{
943	/*
944	* Can skip this if mappings are safely fixed.
945	*/
946	if (pVM->pgm.s.fMappingsFixed)
947	return false;
948
949	/*
950	* Resolve the page directory.
951	*/
952	PVBOXPD pPD = pVM->pgm.s.pGuestPDHC; /** @todo Fix PAE! */
953	Assert(pPD);
954	Assert(pPD == (PVBOXPD)MMPhysGCPhys2HCVirt(pVM, cr3 & X86_CR3_PAGE_MASK, sizeof(*pPD)));
955
956	/*
957	* Iterate mappings.
958	*/
959	for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsHC; pCur; pCur = pCur->pNextHC)
960	{
961	unsigned iPDE = pCur->GCPtr >> PGDIR_SHIFT;
962	unsigned iPT = pCur->cPTs;
963	while (iPT-- > 0)
964	if ( pPD->a[iPDE + iPT].n.u1Present /** @todo PGMGstGetPDE. */
965	&& (fRawR0 \|\| pPD->a[iPDE + iPT].n.u1User))
966	{
967	STAM_COUNTER_INC(&pVM->pgm.s.StatHCDetectedConflicts);
968	#if 1
969	Log(("PGMR3HasMappingConflicts: Conflict was detected at %VGv for mapping %s\n"
970	" iPDE=%#x iPT=%#x PDE=%VGp.\n",
971	(iPT + iPDE) << PGDIR_SHIFT, pCur->pszDesc,
972	iPDE, iPT, pPD->a[iPDE + iPT].au32[0]));
973	#else
974	AssertMsgFailed(("PGMR3HasMappingConflicts: Conflict was detected at %VGv for mapping %s\n"
975	" iPDE=%#x iPT=%#x PDE=%VGp.\n",
976	(iPT + iPDE) << PGDIR_SHIFT, pCur->pszDesc,
977	iPDE, iPT, pPD->a[iPDE + iPT].au32[0]));
978	#endif
979	return true;
980	}
981	}
982
983	return false;
984	}
985
986
987	/**
988	* Read memory from the guest mappings.
989	*
990	* This will use the page tables associated with the mappings to
991	* read the memory. This means that not all kind of memory is readable
992	* since we don't necessarily know how to convert that physical address
993	* to a HC virtual one.
994	*
995	* @returns VBox status.
996	* @param pVM VM handle.
997	* @param pvDst The destination address (HC of course).
998	* @param GCPtrSrc The source address (GC virtual address).
999	* @param cb Number of bytes to read.
1000	*/
1001	PGMR3DECL(int) PGMR3MapRead(PVM pVM, void *pvDst, RTGCPTR GCPtrSrc, size_t cb)
1002	{
1003	/** @todo remove this simplicity hack */
1004	/*
1005	* Simplicity over speed... Chop the request up into chunks
1006	* which don't cross pages.
1007	*/
1008	if (cb + (GCPtrSrc & PAGE_OFFSET_MASK) > PAGE_SIZE)
1009	{
1010	for (;;)
1011	{
1012	unsigned cbRead = RT_MIN(cb, PAGE_SIZE - (GCPtrSrc & PAGE_OFFSET_MASK));
1013	int rc = PGMR3MapRead(pVM, pvDst, GCPtrSrc, cbRead);
1014	if (VBOX_FAILURE(rc))
1015	return rc;
1016	cb -= cbRead;
1017	if (!cb)
1018	break;
1019	pvDst = (char *)pvDst + cbRead;
1020	GCPtrSrc += cbRead;
1021	}
1022	return VINF_SUCCESS;
1023	}
1024
1025	/*
1026	* Find the mapping.
1027	*/
1028	PPGMMAPPING pCur = CTXSUFF(pVM->pgm.s.pMappings);
1029	while (pCur)
1030	{
1031	RTGCUINTPTR off = (RTGCUINTPTR)GCPtrSrc - (RTGCUINTPTR)pCur->GCPtr;
1032	if (off < pCur->cb)
1033	{
1034	if (off + cb > pCur->cb)
1035	{
1036	AssertMsgFailed(("Invalid page range %VGv LB%#x. mapping '%s' %VGv to %VGv\n",
1037	GCPtrSrc, cb, pCur->pszDesc, pCur->GCPtr, pCur->GCPtrLast));
1038	return VERR_INVALID_PARAMETER;
1039	}
1040
1041	unsigned iPT = off >> PGDIR_SHIFT;
1042	unsigned iPTE = (off >> PAGE_SHIFT) & PTE_MASK;
1043	while (cb > 0 && iPTE < ELEMENTS(CTXSUFF(pCur->aPTs[iPT].pPT)->a))
1044	{
1045	if (!CTXSUFF(pCur->aPTs[iPT].paPaePTs)[iPTE / 512].a[iPTE % 512].n.u1Present)
1046	return VERR_PAGE_NOT_PRESENT;
1047	RTHCPHYS HCPhys = CTXSUFF(pCur->aPTs[iPT].paPaePTs)[iPTE / 512].a[iPTE % 512].u & X86_PTE_PAE_PG_MASK;
1048
1049	/*
1050	* Get the virtual page from the physical one.
1051	*/
1052	void *pvPage;
1053	int rc = MMR3HCPhys2HCVirt(pVM, HCPhys, &pvPage);
1054	if (VBOX_FAILURE(rc))
1055	return rc;
1056
1057	memcpy(pvDst, (char *)pvPage + (GCPtrSrc & PAGE_OFFSET_MASK), cb);
1058	return VINF_SUCCESS;
1059	}
1060	}
1061
1062	/* next */
1063	pCur = CTXSUFF(pCur->pNext);
1064	}
1065
1066	return VERR_INVALID_POINTER;
1067	}
1068
1069
1070	/**
1071	* Dumps one virtual handler range.
1072	*
1073	* @returns 0
1074	* @param pNode Pointer to a PGMVIRTHANDLER.
1075	* @param pvUser Pointer to command helper functions.
1076	*/
1077	static DECLCALLBACK(int) pgmVirtHandlerDump(PAVLROGCPTRNODECORE pNode, void *pvUser)
1078	{
1079	PPGMVIRTHANDLER pCur = (PPGMVIRTHANDLER)pNode;
1080
1081	switch (pCur->enmType)
1082	{
1083	case PGMVIRTHANDLERTYPE_EIP:
1084	RTLogPrintf("EIP %RGv-%RGv size %RGv %s\n", pCur->GCPtr, pCur->GCPtrLast, pCur->cb, pCur->pszDesc);
1085	break;
1086	case PGMVIRTHANDLERTYPE_NORMAL:
1087	RTLogPrintf("NORMAL %RGv-%RGv size %RGv %s\n", pCur->GCPtr, pCur->GCPtrLast, pCur->cb, pCur->pszDesc);
1088	break;
1089	case PGMVIRTHANDLERTYPE_WRITE:
1090	RTLogPrintf("WRITE %RGv-%RGv size %RGv %s\n", pCur->GCPtr, pCur->GCPtrLast, pCur->cb, pCur->pszDesc);
1091	break;
1092	case PGMVIRTHANDLERTYPE_HYPERVISOR:
1093	RTLogPrintf("WRITEHYP %RGv-%RGv size %RGv %s\n", pCur->GCPtr, pCur->GCPtrLast, pCur->cb, pCur->pszDesc);
1094	break;
1095	case PGMVIRTHANDLERTYPE_ALL:
1096	RTLogPrintf("ALL %RGv-%RGv size %RGv %s\n", pCur->GCPtr, pCur->GCPtrLast, pCur->cb, pCur->pszDesc);
1097	break;
1098	}
1099	if (pCur->enmType != PGMVIRTHANDLERTYPE_HYPERVISOR)
1100	for (unsigned i = 0; i < pCur->cPages; i++)
1101	RTLogPrintf("Physical page %#05d %VGp\n", i, pCur->aPhysToVirt[i].Core.Key);
1102	return 0;
1103	}
1104
1105	/**
1106	* Dumps the current mappings to the log
1107	*
1108	* @returns VBox status.
1109	* @param pVM Pointer to the current VM (if any).
1110	*
1111	*/
1112	PGMR3DECL(void) PGMR3DumpMappings(PVM pVM)
1113	{
1114	/*
1115	* Print message about the fixedness of the mappings and dump them.
1116	*/
1117	RTLogPrintf(pVM->pgm.s.fMappingsFixed ? "\nThe mappings are FIXED.\n" : "\nThe mappings are FLOATING.\n");
1118
1119	PPGMMAPPING pCur;
1120	for (pCur = pVM->pgm.s.pMappingsHC; pCur; pCur = pCur->pNextHC)
1121	RTLogPrintf("%VGv - %VGv %s\n", pCur->GCPtr, pCur->GCPtrLast, pCur->pszDesc);
1122
1123	/** @todo The handler stuff is totally alien here. This should be converted into a 'info' function. */
1124	RTLogPrintf("\nVirtual handlers:\n");
1125	RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesHC->VirtHandlers, true, pgmVirtHandlerDump, pVM);
1126
1127	RTLogPrintf("\n"
1128	"Physical handlers: (PhysHandlers=%d (%#x))\n"
1129	"From - To (incl) HandlerHC UserHC HandlerHC UserHC HandlerGC UserGC Type Description\n",
1130	pVM->pgm.s.pTreesHC->PhysHandlers, pVM->pgm.s.pTreesHC->PhysHandlers);
1131	RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesHC->PhysHandlers, true, pgmR3DumpMappingsPhysicalCB, NULL);
1132	}
1133
1134
1135	/**
1136	* Dumps one physical handler range.
1137	*
1138	* @returns 0
1139	* @param pNode Pointer to a PGMPHYSHANDLER.
1140	* @param pvUser Ignored.
1141	*/
1142	static DECLCALLBACK(int) pgmR3DumpMappingsPhysicalCB(PAVLROGCPHYSNODECORE pNode, void *pvUser)
1143	{
1144	PPGMPHYSHANDLER pCur = (PPGMPHYSHANDLER)pNode; NOREF(pvUser);
1145	const char *pszType;
1146	switch (pCur->enmType)
1147	{
1148	case PGMPHYSHANDLERTYPE_MMIO: pszType = "MMIO "; break;
1149	case PGMPHYSHANDLERTYPE_PHYSICAL: pszType = "Natural"; break;
1150	case PGMPHYSHANDLERTYPE_PHYSICAL_WRITE: pszType = "Write "; break;
1151	case PGMPHYSHANDLERTYPE_PHYSICAL_ALL: pszType = "All "; break;
1152	default: pszType = "????"; break;
1153	}
1154	RTLogPrintf("%VGp - %VGp %VHv %VHv %VHv %VHv %VGv %VGv %s %s\n",
1155	pCur->Core.Key, pCur->Core.KeyLast, pCur->pfnHandlerR3, pCur->pvUserR3, pCur->pfnHandlerR0, pCur->pvUserR0,
1156	pCur->pfnHandlerGC, pCur->pvUserGC, pszType, pCur->pszDesc);
1157	return 0;
1158	}
1159

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source: vbox/trunk/src/VBox/VMM/PGMMap.cpp@ 1995

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