PGMDbg.cpp@ 41669

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1	/* $Id: PGMDbg.cpp 39078 2011-10-21 14:18:22Z vboxsync $ */
2	/** @file
3	* PGM - Page Manager and Monitor - Debugger & Debugging APIs.
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 Oracle Corporation
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
18	/*******************************************************************************
19	* Header Files *
20	*******************************************************************************/
21	#define LOG_GROUP LOG_GROUP_PGM
22	#include <VBox/vmm/pgm.h>
23	#include <VBox/vmm/stam.h>
24	#include "PGMInternal.h"
25	#include <VBox/vmm/vm.h>
26	#include "PGMInline.h"
27	#include <iprt/assert.h>
28	#include <iprt/asm.h>
29	#include <iprt/string.h>
30	#include <VBox/log.h>
31	#include <VBox/param.h>
32	#include <VBox/err.h>
33
34
35	/*******************************************************************************
36	* Defined Constants And Macros *
37	*******************************************************************************/
38	/** The max needle size that we will bother searching for
39	* This must not be more than half a page! */
40	#define MAX_NEEDLE_SIZE 256
41
42
43	/*******************************************************************************
44	* Structures and Typedefs *
45	*******************************************************************************/
46	/**
47	* State structure for the paging hierarchy dumpers.
48	*/
49	typedef struct PGMR3DUMPHIERARCHYSTATE
50	{
51	/** The VM handle. */
52	PVM pVM;
53	/** Output helpers. */
54	PCDBGFINFOHLP pHlp;
55	/** Set if PSE, PAE or long mode is enabled. */
56	bool fPse;
57	/** Set if PAE or long mode is enabled. */
58	bool fPae;
59	/** Set if long mode is enabled. */
60	bool fLme;
61	/** Set if nested paging. */
62	bool fNp;
63	/** Set if EPT. */
64	bool fEpt;
65	/** Set if NXE is enabled. */
66	bool fNxe;
67	/** The number or chars the address needs. */
68	uint8_t cchAddress;
69	/** The last reserved bit. */
70	uint8_t uLastRsvdBit;
71	/** Dump the page info as well (shadow page summary / guest physical
72	* page summary). */
73	bool fDumpPageInfo;
74	/** Whether or not to print the header. */
75	bool fPrintHeader;
76	/** Whether to print the CR3 value */
77	bool fPrintCr3;
78	/** Padding*/
79	bool afReserved[5];
80	/** The current address. */
81	uint64_t u64Address;
82	/** The last address to dump structures for. */
83	uint64_t u64FirstAddress;
84	/** The last address to dump structures for. */
85	uint64_t u64LastAddress;
86	/** Mask with the high reserved bits set. */
87	uint64_t u64HighReservedBits;
88	/** The number of leaf entries that we've printed. */
89	uint64_t cLeaves;
90	} PGMR3DUMPHIERARCHYSTATE;
91	/** Pointer to the paging hierarchy dumper state. */
92	typedef PGMR3DUMPHIERARCHYSTATE *PPGMR3DUMPHIERARCHYSTATE;
93
94
95
96	/**
97	* Converts a R3 pointer to a GC physical address.
98	*
99	* Only for the debugger.
100	*
101	* @returns VBox status code.
102	* @retval VINF_SUCCESS on success, *pGCPhys is set.
103	* @retval VERR_INVALID_POINTER if the pointer is not within the GC physical memory.
104	*
105	* @param pVM The VM handle.
106	* @param R3Ptr The R3 pointer to convert.
107	* @param pGCPhys Where to store the GC physical address on success.
108	*/
109	VMMR3DECL(int) PGMR3DbgR3Ptr2GCPhys(PVM pVM, RTR3PTR R3Ptr, PRTGCPHYS pGCPhys)
110	{
111	NOREF(pVM); NOREF(R3Ptr);
112	*pGCPhys = NIL_RTGCPHYS;
113	return VERR_NOT_IMPLEMENTED;
114	}
115
116
117	/**
118	* Converts a R3 pointer to a HC physical address.
119	*
120	* Only for the debugger.
121	*
122	* @returns VBox status code.
123	* @retval VINF_SUCCESS on success, *pHCPhys is set.
124	* @retval VERR_PGM_PHYS_PAGE_RESERVED it it's a valid GC physical page but has no physical backing.
125	* @retval VERR_INVALID_POINTER if the pointer is not within the GC physical memory.
126	*
127	* @param pVM The VM handle.
128	* @param R3Ptr The R3 pointer to convert.
129	* @param pHCPhys Where to store the HC physical address on success.
130	*/
131	VMMR3DECL(int) PGMR3DbgR3Ptr2HCPhys(PVM pVM, RTR3PTR R3Ptr, PRTHCPHYS pHCPhys)
132	{
133	NOREF(pVM); NOREF(R3Ptr);
134	*pHCPhys = NIL_RTHCPHYS;
135	return VERR_NOT_IMPLEMENTED;
136	}
137
138
139	/**
140	* Converts a HC physical address to a GC physical address.
141	*
142	* Only for the debugger.
143	*
144	* @returns VBox status code
145	* @retval VINF_SUCCESS on success, *pGCPhys is set.
146	* @retval VERR_INVALID_POINTER if the HC physical address is not within the GC physical memory.
147	*
148	* @param pVM The VM handle.
149	* @param HCPhys The HC physical address to convert.
150	* @param pGCPhys Where to store the GC physical address on success.
151	*/
152	VMMR3DECL(int) PGMR3DbgHCPhys2GCPhys(PVM pVM, RTHCPHYS HCPhys, PRTGCPHYS pGCPhys)
153	{
154	/*
155	* Validate and adjust the input a bit.
156	*/
157	if (HCPhys == NIL_RTHCPHYS)
158	return VERR_INVALID_POINTER;
159	unsigned off = HCPhys & PAGE_OFFSET_MASK;
160	HCPhys &= X86_PTE_PAE_PG_MASK;
161	if (HCPhys == 0)
162	return VERR_INVALID_POINTER;
163
164	for (PPGMRAMRANGE pRam = pVM->pgm.s.CTX_SUFF(pRamRangesX);
165	pRam;
166	pRam = pRam->CTX_SUFF(pNext))
167	{
168	uint32_t iPage = pRam->cb >> PAGE_SHIFT;
169	while (iPage-- > 0)
170	if (PGM_PAGE_GET_HCPHYS(&pRam->aPages[iPage]) == HCPhys)
171	{
172	*pGCPhys = pRam->GCPhys + (iPage << PAGE_SHIFT) + off;
173	return VINF_SUCCESS;
174	}
175	}
176	return VERR_INVALID_POINTER;
177	}
178
179
180	/**
181	* Read physical memory API for the debugger, similar to
182	* PGMPhysSimpleReadGCPhys.
183	*
184	* @returns VBox status code.
185	*
186	* @param pVM The VM handle.
187	* @param pvDst Where to store what's read.
188	* @param GCPhysDst Where to start reading from.
189	* @param cb The number of bytes to attempt reading.
190	* @param fFlags Flags, MBZ.
191	* @param pcbRead For store the actual number of bytes read, pass NULL if
192	* partial reads are unwanted.
193	* @todo Unused?
194	*/
195	VMMR3DECL(int) PGMR3DbgReadGCPhys(PVM pVM, void pvDst, RTGCPHYS GCPhysSrc, size_t cb, uint32_t fFlags, size_t pcbRead)
196	{
197	/* validate */
198	AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
199	AssertReturn(pVM, VERR_INVALID_PARAMETER);
200
201	/* try simple first. */
202	int rc = PGMPhysSimpleReadGCPhys(pVM, pvDst, GCPhysSrc, cb);
203	if (RT_SUCCESS(rc) \|\| !pcbRead)
204	return rc;
205
206	/* partial read that failed, chop it up in pages. */
207	*pcbRead = 0;
208	rc = VINF_SUCCESS;
209	while (cb > 0)
210	{
211	size_t cbChunk = PAGE_SIZE;
212	cbChunk -= GCPhysSrc & PAGE_OFFSET_MASK;
213	if (cbChunk > cb)
214	cbChunk = cb;
215
216	rc = PGMPhysSimpleReadGCPhys(pVM, pvDst, GCPhysSrc, cbChunk);
217
218	/* advance */
219	if (RT_FAILURE(rc))
220	break;
221	*pcbRead += cbChunk;
222	cb -= cbChunk;
223	GCPhysSrc += cbChunk;
224	pvDst = (uint8_t *)pvDst + cbChunk;
225	}
226
227	return *pcbRead && RT_FAILURE(rc) ? -rc : rc;
228	}
229
230
231	/**
232	* Write physical memory API for the debugger, similar to
233	* PGMPhysSimpleWriteGCPhys.
234	*
235	* @returns VBox status code.
236	*
237	* @param pVM The VM handle.
238	* @param GCPhysDst Where to start writing.
239	* @param pvSrc What to write.
240	* @param cb The number of bytes to attempt writing.
241	* @param fFlags Flags, MBZ.
242	* @param pcbWritten For store the actual number of bytes written, pass NULL
243	* if partial writes are unwanted.
244	* @todo Unused?
245	*/
246	VMMR3DECL(int) PGMR3DbgWriteGCPhys(PVM pVM, RTGCPHYS GCPhysDst, const void pvSrc, size_t cb, uint32_t fFlags, size_t pcbWritten)
247	{
248	/* validate */
249	AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
250	AssertReturn(pVM, VERR_INVALID_PARAMETER);
251
252	/* try simple first. */
253	int rc = PGMPhysSimpleWriteGCPhys(pVM, GCPhysDst, pvSrc, cb);
254	if (RT_SUCCESS(rc) \|\| !pcbWritten)
255	return rc;
256
257	/* partial write that failed, chop it up in pages. */
258	*pcbWritten = 0;
259	rc = VINF_SUCCESS;
260	while (cb > 0)
261	{
262	size_t cbChunk = PAGE_SIZE;
263	cbChunk -= GCPhysDst & PAGE_OFFSET_MASK;
264	if (cbChunk > cb)
265	cbChunk = cb;
266
267	rc = PGMPhysSimpleWriteGCPhys(pVM, GCPhysDst, pvSrc, cbChunk);
268
269	/* advance */
270	if (RT_FAILURE(rc))
271	break;
272	*pcbWritten += cbChunk;
273	cb -= cbChunk;
274	GCPhysDst += cbChunk;
275	pvSrc = (uint8_t const *)pvSrc + cbChunk;
276	}
277
278	return *pcbWritten && RT_FAILURE(rc) ? -rc : rc;
279
280	}
281
282
283	/**
284	* Read virtual memory API for the debugger, similar to PGMPhysSimpleReadGCPtr.
285	*
286	* @returns VBox status code.
287	*
288	* @param pVM The VM handle.
289	* @param pvDst Where to store what's read.
290	* @param GCPtrDst Where to start reading from.
291	* @param cb The number of bytes to attempt reading.
292	* @param fFlags Flags, MBZ.
293	* @param pcbRead For store the actual number of bytes read, pass NULL if
294	* partial reads are unwanted.
295	* @todo Unused?
296	*/
297	VMMR3DECL(int) PGMR3DbgReadGCPtr(PVM pVM, void pvDst, RTGCPTR GCPtrSrc, size_t cb, uint32_t fFlags, size_t pcbRead)
298	{
299	/* validate */
300	AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
301	AssertReturn(pVM, VERR_INVALID_PARAMETER);
302
303	/* @todo SMP support! */
304	PVMCPU pVCpu = &pVM->aCpus[0];
305
306	/** @todo deal with HMA */
307	/* try simple first. */
308	int rc = PGMPhysSimpleReadGCPtr(pVCpu, pvDst, GCPtrSrc, cb);
309	if (RT_SUCCESS(rc) \|\| !pcbRead)
310	return rc;
311
312	/* partial read that failed, chop it up in pages. */
313	*pcbRead = 0;
314	rc = VINF_SUCCESS;
315	while (cb > 0)
316	{
317	size_t cbChunk = PAGE_SIZE;
318	cbChunk -= GCPtrSrc & PAGE_OFFSET_MASK;
319	if (cbChunk > cb)
320	cbChunk = cb;
321
322	rc = PGMPhysSimpleReadGCPtr(pVCpu, pvDst, GCPtrSrc, cbChunk);
323
324	/* advance */
325	if (RT_FAILURE(rc))
326	break;
327	*pcbRead += cbChunk;
328	cb -= cbChunk;
329	GCPtrSrc += cbChunk;
330	pvDst = (uint8_t *)pvDst + cbChunk;
331	}
332
333	return *pcbRead && RT_FAILURE(rc) ? -rc : rc;
334
335	}
336
337
338	/**
339	* Write virtual memory API for the debugger, similar to
340	* PGMPhysSimpleWriteGCPtr.
341	*
342	* @returns VBox status code.
343	*
344	* @param pVM The VM handle.
345	* @param GCPtrDst Where to start writing.
346	* @param pvSrc What to write.
347	* @param cb The number of bytes to attempt writing.
348	* @param fFlags Flags, MBZ.
349	* @param pcbWritten For store the actual number of bytes written, pass NULL
350	* if partial writes are unwanted.
351	* @todo Unused?
352	*/
353	VMMR3DECL(int) PGMR3DbgWriteGCPtr(PVM pVM, RTGCPTR GCPtrDst, void const pvSrc, size_t cb, uint32_t fFlags, size_t pcbWritten)
354	{
355	/* validate */
356	AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
357	AssertReturn(pVM, VERR_INVALID_PARAMETER);
358
359	/* @todo SMP support! */
360	PVMCPU pVCpu = &pVM->aCpus[0];
361
362	/** @todo deal with HMA */
363	/* try simple first. */
364	int rc = PGMPhysSimpleWriteGCPtr(pVCpu, GCPtrDst, pvSrc, cb);
365	if (RT_SUCCESS(rc) \|\| !pcbWritten)
366	return rc;
367
368	/* partial write that failed, chop it up in pages. */
369	*pcbWritten = 0;
370	rc = VINF_SUCCESS;
371	while (cb > 0)
372	{
373	size_t cbChunk = PAGE_SIZE;
374	cbChunk -= GCPtrDst & PAGE_OFFSET_MASK;
375	if (cbChunk > cb)
376	cbChunk = cb;
377
378	rc = PGMPhysSimpleWriteGCPtr(pVCpu, GCPtrDst, pvSrc, cbChunk);
379
380	/* advance */
381	if (RT_FAILURE(rc))
382	break;
383	*pcbWritten += cbChunk;
384	cb -= cbChunk;
385	GCPtrDst += cbChunk;
386	pvSrc = (uint8_t const *)pvSrc + cbChunk;
387	}
388
389	return *pcbWritten && RT_FAILURE(rc) ? -rc : rc;
390
391	}
392
393
394	/**
395	* memchr() with alignment considerations.
396	*
397	* @returns Pointer to matching byte, NULL if none found.
398	* @param pb Where to search. Aligned.
399	* @param b What to search for.
400	* @param cb How much to search .
401	* @param uAlign The alignment restriction of the result.
402	*/
403	static const uint8_t pgmR3DbgAlignedMemChr(const uint8_t pb, uint8_t b, size_t cb, uint32_t uAlign)
404	{
405	const uint8_t *pbRet;
406	if (uAlign <= 32)
407	{
408	pbRet = (const uint8_t *)memchr(pb, b, cb);
409	if ((uintptr_t)pbRet & (uAlign - 1))
410	{
411	do
412	{
413	pbRet++;
414	size_t cbLeft = cb - (pbRet - pb);
415	if (!cbLeft)
416	{
417	pbRet = NULL;
418	break;
419	}
420	pbRet = (const uint8_t *)memchr(pbRet, b, cbLeft);
421	} while ((uintptr_t)pbRet & (uAlign - 1));
422	}
423	}
424	else
425	{
426	pbRet = NULL;
427	if (cb)
428	{
429	for (;;)
430	{
431	if (*pb == b)
432	{
433	pbRet = pb;
434	break;
435	}
436	if (cb <= uAlign)
437	break;
438	cb -= uAlign;
439	pb += uAlign;
440	}
441	}
442	}
443	return pbRet;
444	}
445
446
447	/**
448	* Scans a page for a byte string, keeping track of potential
449	* cross page matches.
450	*
451	* @returns true and *poff on match.
452	* false on mismatch.
453	* @param pbPage Pointer to the current page.
454	* @param poff Input: The offset into the page (aligned).
455	* Output: The page offset of the match on success.
456	* @param cb The number of bytes to search, starting of *poff.
457	* @param uAlign The needle alignment. This is of course less than a page.
458	* @param pabNeedle The byte string to search for.
459	* @param cbNeedle The length of the byte string.
460	* @param pabPrev The buffer that keeps track of a partial match that we
461	* bring over from the previous page. This buffer must be
462	* at least cbNeedle - 1 big.
463	* @param pcbPrev Input: The number of partial matching bytes from the previous page.
464	* Output: The number of partial matching bytes from this page.
465	* Initialize to 0 before the first call to this function.
466	*/
467	static bool pgmR3DbgScanPage(const uint8_t pbPage, int32_t poff, uint32_t cb, uint32_t uAlign,
468	const uint8_t *pabNeedle, size_t cbNeedle,
469	uint8_t pabPrev, size_t pcbPrev)
470	{
471	/*
472	* Try complete any partial match from the previous page.
473	*/
474	if (*pcbPrev > 0)
475	{
476	size_t cbPrev = *pcbPrev;
477	Assert(!*poff);
478	Assert(cbPrev < cbNeedle);
479	if (!memcmp(pbPage, pabNeedle + cbPrev, cbNeedle - cbPrev))
480	{
481	if (cbNeedle - cbPrev > cb)
482	return false;
483	*poff = -(int32_t)cbPrev;
484	return true;
485	}
486
487	/* check out the remainder of the previous page. */
488	const uint8_t *pb = pabPrev;
489	for (;;)
490	{
491	if (cbPrev <= uAlign)
492	break;
493	cbPrev -= uAlign;
494	pb = pgmR3DbgAlignedMemChr(pb + uAlign, *pabNeedle, cbPrev, uAlign);
495	if (!pb)
496	break;
497	cbPrev = *pcbPrev - (pb - pabPrev);
498	if ( !memcmp(pb + 1, &pabNeedle[1], cbPrev - 1)
499	&& !memcmp(pbPage, pabNeedle + cbPrev, cbNeedle - cbPrev))
500	{
501	if (cbNeedle - cbPrev > cb)
502	return false;
503	*poff = -(int32_t)cbPrev;
504	return true;
505	}
506	}
507
508	*pcbPrev = 0;
509	}
510
511	/*
512	* Match the body of the page.
513	*/
514	const uint8_t pb = pbPage + poff;
515	const uint8_t *pbEnd = pb + cb;
516	for (;;)
517	{
518	pb = pgmR3DbgAlignedMemChr(pb, *pabNeedle, cb, uAlign);
519	if (!pb)
520	break;
521	cb = pbEnd - pb;
522	if (cb >= cbNeedle)
523	{
524	/* match? */
525	if (!memcmp(pb + 1, &pabNeedle[1], cbNeedle - 1))
526	{
527	*poff = pb - pbPage;
528	return true;
529	}
530	}
531	else
532	{
533	/* partial match at the end of the page? */
534	if (!memcmp(pb + 1, &pabNeedle[1], cb - 1))
535	{
536	/* We're copying one byte more that we really need here, but wtf. */
537	memcpy(pabPrev, pb, cb);
538	*pcbPrev = cb;
539	return false;
540	}
541	}
542
543	/* no match, skip ahead. */
544	if (cb <= uAlign)
545	break;
546	pb += uAlign;
547	cb -= uAlign;
548	}
549
550	return false;
551	}
552
553
554	/**
555	* Scans guest physical memory for a byte string.
556	*
557	* @returns VBox status codes:
558	* @retval VINF_SUCCESS and *pGCPtrHit on success.
559	* @retval VERR_DBGF_MEM_NOT_FOUND if not found.
560	* @retval VERR_INVALID_POINTER if any of the pointer arguments are invalid.
561	* @retval VERR_INVALID_ARGUMENT if any other arguments are invalid.
562	*
563	* @param pVM Pointer to the shared VM structure.
564	* @param GCPhys Where to start searching.
565	* @param cbRange The number of bytes to search.
566	* @param GCPhysAlign The alignment of the needle. Must be a power of two
567	* and less or equal to 4GB.
568	* @param pabNeedle The byte string to search for.
569	* @param cbNeedle The length of the byte string. Max 256 bytes.
570	* @param pGCPhysHit Where to store the address of the first occurrence on success.
571	*/
572	VMMR3DECL(int) PGMR3DbgScanPhysical(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cbRange, RTGCPHYS GCPhysAlign,
573	const uint8_t *pabNeedle, size_t cbNeedle, PRTGCPHYS pGCPhysHit)
574	{
575	/*
576	* Validate and adjust the input a bit.
577	*/
578	if (!VALID_PTR(pGCPhysHit))
579	return VERR_INVALID_POINTER;
580	*pGCPhysHit = NIL_RTGCPHYS;
581
582	if ( !VALID_PTR(pabNeedle)
583	\|\| GCPhys == NIL_RTGCPHYS)
584	return VERR_INVALID_POINTER;
585	if (!cbNeedle)
586	return VERR_INVALID_PARAMETER;
587	if (cbNeedle > MAX_NEEDLE_SIZE)
588	return VERR_INVALID_PARAMETER;
589
590	if (!cbRange)
591	return VERR_DBGF_MEM_NOT_FOUND;
592	if (GCPhys + cbNeedle - 1 < GCPhys)
593	return VERR_DBGF_MEM_NOT_FOUND;
594
595	if (!GCPhysAlign)
596	return VERR_INVALID_PARAMETER;
597	if (GCPhysAlign > UINT32_MAX)
598	return VERR_NOT_POWER_OF_TWO;
599	if (GCPhysAlign & (GCPhysAlign - 1))
600	return VERR_INVALID_PARAMETER;
601
602	if (GCPhys & (GCPhysAlign - 1))
603	{
604	RTGCPHYS Adj = GCPhysAlign - (GCPhys & (GCPhysAlign - 1));
605	if ( cbRange <= Adj
606	\|\| GCPhys + Adj < GCPhys)
607	return VERR_DBGF_MEM_NOT_FOUND;
608	GCPhys += Adj;
609	cbRange -= Adj;
610	}
611
612	const bool fAllZero = ASMMemIsAll8(pabNeedle, cbNeedle, 0) == NULL;
613	const uint32_t cIncPages = GCPhysAlign <= PAGE_SIZE
614	? 1
615	: GCPhysAlign >> PAGE_SHIFT;
616	const RTGCPHYS GCPhysLast = GCPhys + cbRange - 1 >= GCPhys
617	? GCPhys + cbRange - 1
618	: ~(RTGCPHYS)0;
619
620	/*
621	* Search the memory - ignore MMIO and zero pages, also don't
622	* bother to match across ranges.
623	*/
624	pgmLock(pVM);
625	for (PPGMRAMRANGE pRam = pVM->pgm.s.CTX_SUFF(pRamRangesX);
626	pRam;
627	pRam = pRam->CTX_SUFF(pNext))
628	{
629	/*
630	* If the search range starts prior to the current ram range record,
631	* adjust the search range and possibly conclude the search.
632	*/
633	RTGCPHYS off;
634	if (GCPhys < pRam->GCPhys)
635	{
636	if (GCPhysLast < pRam->GCPhys)
637	break;
638	GCPhys = pRam->GCPhys;
639	off = 0;
640	}
641	else
642	off = GCPhys - pRam->GCPhys;
643	if (off < pRam->cb)
644	{
645	/*
646	* Iterate the relevant pages.
647	*/
648	uint8_t abPrev[MAX_NEEDLE_SIZE];
649	size_t cbPrev = 0;
650	const uint32_t cPages = pRam->cb >> PAGE_SHIFT;
651	uint32_t iPage = off >> PAGE_SHIFT;
652	uint32_t offPage = GCPhys & PAGE_OFFSET_MASK;
653	GCPhys &= ~(RTGCPHYS)PAGE_OFFSET_MASK;
654	for (;; offPage = 0)
655	{
656	PPGMPAGE pPage = &pRam->aPages[iPage];
657	if ( ( !PGM_PAGE_IS_ZERO(pPage)
658	\|\| fAllZero)
659	&& !PGM_PAGE_IS_BALLOONED(pPage)
660	&& !PGM_PAGE_IS_MMIO(pPage))
661	{
662	void const *pvPage;
663	PGMPAGEMAPLOCK Lock;
664	int rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, &pvPage, &Lock);
665	if (RT_SUCCESS(rc))
666	{
667	int32_t offHit = offPage;
668	bool fRc;
669	if (GCPhysAlign < PAGE_SIZE)
670	{
671	uint32_t cbSearch = (GCPhys ^ GCPhysLast) & ~(RTGCPHYS)PAGE_OFFSET_MASK
672	? PAGE_SIZE - (uint32_t)offPage
673	: (GCPhysLast & PAGE_OFFSET_MASK) + 1 - (uint32_t)offPage;
674	fRc = pgmR3DbgScanPage((uint8_t const *)pvPage, &offHit, cbSearch, (uint32_t)GCPhysAlign,
675	pabNeedle, cbNeedle, &abPrev[0], &cbPrev);
676	}
677	else
678	fRc = memcmp(pvPage, pabNeedle, cbNeedle) == 0
679	&& (GCPhysLast - GCPhys) >= cbNeedle;
680	PGMPhysReleasePageMappingLock(pVM, &Lock);
681	if (fRc)
682	{
683	*pGCPhysHit = GCPhys + offHit;
684	pgmUnlock(pVM);
685	return VINF_SUCCESS;
686	}
687	}
688	else
689	cbPrev = 0; /* ignore error. */
690	}
691	else
692	cbPrev = 0;
693
694	/* advance to the next page. */
695	GCPhys += (RTGCPHYS)cIncPages << PAGE_SHIFT;
696	if (GCPhys >= GCPhysLast) /* (may not always hit, but we're run out of ranges.) */
697	{
698	pgmUnlock(pVM);
699	return VERR_DBGF_MEM_NOT_FOUND;
700	}
701	iPage += cIncPages;
702	if ( iPage < cIncPages
703	\|\| iPage >= cPages)
704	break;
705	}
706	}
707	}
708	pgmUnlock(pVM);
709	return VERR_DBGF_MEM_NOT_FOUND;
710	}
711
712
713	/**
714	* Scans (guest) virtual memory for a byte string.
715	*
716	* @returns VBox status codes:
717	* @retval VINF_SUCCESS and *pGCPtrHit on success.
718	* @retval VERR_DBGF_MEM_NOT_FOUND if not found.
719	* @retval VERR_INVALID_POINTER if any of the pointer arguments are invalid.
720	* @retval VERR_INVALID_ARGUMENT if any other arguments are invalid.
721	*
722	* @param pVM Pointer to the shared VM structure.
723	* @param pVCpu The CPU context to search in.
724	* @param GCPtr Where to start searching.
725	* @param GCPtrAlign The alignment of the needle. Must be a power of two
726	* and less or equal to 4GB.
727	* @param cbRange The number of bytes to search. Max 256 bytes.
728	* @param pabNeedle The byte string to search for.
729	* @param cbNeedle The length of the byte string.
730	* @param pGCPtrHit Where to store the address of the first occurrence on success.
731	*/
732	VMMR3DECL(int) PGMR3DbgScanVirtual(PVM pVM, PVMCPU pVCpu, RTGCPTR GCPtr, RTGCPTR cbRange, RTGCPTR GCPtrAlign,
733	const uint8_t *pabNeedle, size_t cbNeedle, PRTGCUINTPTR pGCPtrHit)
734	{
735	VMCPU_ASSERT_EMT(pVCpu);
736
737	/*
738	* Validate and adjust the input a bit.
739	*/
740	if (!VALID_PTR(pGCPtrHit))
741	return VERR_INVALID_POINTER;
742	*pGCPtrHit = 0;
743
744	if (!VALID_PTR(pabNeedle))
745	return VERR_INVALID_POINTER;
746	if (!cbNeedle)
747	return VERR_INVALID_PARAMETER;
748	if (cbNeedle > MAX_NEEDLE_SIZE)
749	return VERR_INVALID_PARAMETER;
750
751	if (!cbRange)
752	return VERR_DBGF_MEM_NOT_FOUND;
753	if (GCPtr + cbNeedle - 1 < GCPtr)
754	return VERR_DBGF_MEM_NOT_FOUND;
755
756	if (!GCPtrAlign)
757	return VERR_INVALID_PARAMETER;
758	if (GCPtrAlign > UINT32_MAX)
759	return VERR_NOT_POWER_OF_TWO;
760	if (GCPtrAlign & (GCPtrAlign - 1))
761	return VERR_INVALID_PARAMETER;
762
763	if (GCPtr & (GCPtrAlign - 1))
764	{
765	RTGCPTR Adj = GCPtrAlign - (GCPtr & (GCPtrAlign - 1));
766	if ( cbRange <= Adj
767	\|\| GCPtr + Adj < GCPtr)
768	return VERR_DBGF_MEM_NOT_FOUND;
769	GCPtr += Adj;
770	cbRange -= Adj;
771	}
772
773	/*
774	* Search the memory - ignore MMIO, zero and not-present pages.
775	*/
776	const bool fAllZero = ASMMemIsAll8(pabNeedle, cbNeedle, 0) == NULL;
777	PGMMODE enmMode = PGMGetGuestMode(pVCpu);
778	RTGCPTR GCPtrMask = PGMMODE_IS_LONG_MODE(enmMode) ? UINT64_MAX : UINT32_MAX;
779	uint8_t abPrev[MAX_NEEDLE_SIZE];
780	size_t cbPrev = 0;
781	const uint32_t cIncPages = GCPtrAlign <= PAGE_SIZE
782	? 1
783	: GCPtrAlign >> PAGE_SHIFT;
784	const RTGCPTR GCPtrLast = GCPtr + cbRange - 1 >= GCPtr
785	? (GCPtr + cbRange - 1) & GCPtrMask
786	: GCPtrMask;
787	RTGCPTR cPages = (((GCPtrLast - GCPtr) + (GCPtr & PAGE_OFFSET_MASK)) >> PAGE_SHIFT) + 1;
788	uint32_t offPage = GCPtr & PAGE_OFFSET_MASK;
789	GCPtr &= ~(RTGCPTR)PAGE_OFFSET_MASK;
790	for (;; offPage = 0)
791	{
792	RTGCPHYS GCPhys;
793	int rc = PGMPhysGCPtr2GCPhys(pVCpu, GCPtr, &GCPhys);
794	if (RT_SUCCESS(rc))
795	{
796	PPGMPAGE pPage = pgmPhysGetPage(pVM, GCPhys);
797	if ( pPage
798	&& ( !PGM_PAGE_IS_ZERO(pPage)
799	\|\| fAllZero)
800	&& !PGM_PAGE_IS_BALLOONED(pPage)
801	&& !PGM_PAGE_IS_MMIO(pPage))
802	{
803	void const *pvPage;
804	PGMPAGEMAPLOCK Lock;
805	rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, &pvPage, &Lock);
806	if (RT_SUCCESS(rc))
807	{
808	int32_t offHit = offPage;
809	bool fRc;
810	if (GCPtrAlign < PAGE_SIZE)
811	{
812	uint32_t cbSearch = cPages > 0
813	? PAGE_SIZE - (uint32_t)offPage
814	: (GCPtrLast & PAGE_OFFSET_MASK) + 1 - (uint32_t)offPage;
815	fRc = pgmR3DbgScanPage((uint8_t const *)pvPage, &offHit, cbSearch, (uint32_t)GCPtrAlign,
816	pabNeedle, cbNeedle, &abPrev[0], &cbPrev);
817	}
818	else
819	fRc = memcmp(pvPage, pabNeedle, cbNeedle) == 0
820	&& (GCPtrLast - GCPtr) >= cbNeedle;
821	PGMPhysReleasePageMappingLock(pVM, &Lock);
822	if (fRc)
823	{
824	*pGCPtrHit = GCPtr + offHit;
825	return VINF_SUCCESS;
826	}
827	}
828	else
829	cbPrev = 0; /* ignore error. */
830	}
831	else
832	cbPrev = 0;
833	}
834	else
835	cbPrev = 0; /* ignore error. */
836
837	/* advance to the next page. */
838	if (cPages <= cIncPages)
839	break;
840	cPages -= cIncPages;
841	GCPtr += (RTGCPTR)cIncPages << PAGE_SHIFT;
842	}
843	return VERR_DBGF_MEM_NOT_FOUND;
844	}
845
846
847	/**
848	* Initializes the dumper state.
849	*
850	* @param pState The state to initialize.
851	* @param pVM The VM handle.
852	* @param fFlags The flags.
853	* @param u64FirstAddr The first address.
854	* @param u64LastAddr The last address.
855	* @param pHlp The output helpers.
856	*/
857	static void pgmR3DumpHierarchyInitState(PPGMR3DUMPHIERARCHYSTATE pState, PVM pVM, uint32_t fFlags,
858	uint64_t u64FirstAddr, uint64_t u64LastAddr, PCDBGFINFOHLP pHlp)
859	{
860	pState->pVM = pVM;
861	pState->pHlp = pHlp ? pHlp : DBGFR3InfoLogHlp();
862	pState->fPse = !!(fFlags & (DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME));
863	pState->fPae = !!(fFlags & (DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME));
864	pState->fLme = !!(fFlags & DBGFPGDMP_FLAGS_LME);
865	pState->fNp = !!(fFlags & DBGFPGDMP_FLAGS_NP);
866	pState->fEpt = !!(fFlags & DBGFPGDMP_FLAGS_EPT);
867	pState->fNxe = !!(fFlags & DBGFPGDMP_FLAGS_NXE);
868	pState->cchAddress = pState->fLme ? 16 : 8;
869	pState->uLastRsvdBit = pState->fNxe ? 62 : 63;
870	pState->fDumpPageInfo = !!(fFlags & DBGFPGDMP_FLAGS_PAGE_INFO);
871	pState->fPrintHeader = !!(fFlags & DBGFPGDMP_FLAGS_HEADER);
872	pState->fPrintCr3 = !!(fFlags & DBGFPGDMP_FLAGS_PRINT_CR3);
873	pState->afReserved[0] = false;
874	pState->afReserved[1] = false;
875	pState->afReserved[2] = false;
876	pState->afReserved[3] = false;
877	pState->afReserved[4] = false;
878	pState->u64Address = u64FirstAddr;
879	pState->u64FirstAddress = u64FirstAddr;
880	pState->u64LastAddress = u64LastAddr;
881	pState->u64HighReservedBits = pState->uLastRsvdBit == 62 ? UINT64_C(0x7ff) << 52 : UINT64_C(0xfff) << 52;
882	pState->cLeaves = 0;
883	}
884
885
886	/**
887	* The simple way out, too tired to think of a more elegant solution.
888	*
889	* @returns The base address of this page table/directory/whatever.
890	* @param pState The state where we get the current address.
891	* @param cShift The shift count for the table entries.
892	* @param cEntries The number of table entries.
893	* @param piFirst Where to return the table index of the first
894	* entry to dump.
895	* @param piLast Where to return the table index of the last
896	* entry.
897	*/
898	static uint64_t pgmR3DumpHierarchyCalcRange(PPGMR3DUMPHIERARCHYSTATE pState, uint32_t cShift, uint32_t cEntries,
899	uint32_t piFirst, uint32_t piLast)
900	{
901	const uint64_t iBase = (pState->u64Address >> cShift) & ~(uint64_t)(cEntries - 1);
902	const uint64_t iFirst = pState->u64FirstAddress >> cShift;
903	const uint64_t iLast = pState->u64LastAddress >> cShift;
904
905	if ( iBase >= iFirst
906	&& iBase + cEntries - 1 <= iLast)
907	{
908	/* full range. */
909	*piFirst = 0;
910	*piLast = cEntries - 1;
911	}
912	else if ( iBase + cEntries - 1 < iFirst
913	\|\| iBase > iLast)
914	{
915	/* no match */
916	*piFirst = cEntries;
917	*piLast = 0;
918	}
919	else
920	{
921	/* partial overlap */
922	*piFirst = iBase <= iFirst
923	? iFirst - iBase
924	: 0;
925	*piLast = iBase + cEntries - 1 <= iLast
926	? cEntries - 1
927	: iLast - iBase;
928	}
929
930	return iBase << cShift;
931	}
932
933
934	/**
935	* Maps/finds the shadow page.
936	*
937	* @returns VBox status code.
938	* @param pState The dumper state.
939	* @param HCPhys The physical address of the shadow page.
940	* @param pszDesc The description.
941	* @param fIsMapping Set if it's a mapping.
942	* @param ppv Where to return the pointer.
943	*/
944	static int pgmR3DumpHierarchyShwMapPage(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, const char *pszDesc,
945	bool fIsMapping, void const **ppv)
946	{
947	void *pvPage;
948	if (!fIsMapping)
949	{
950	int rc = MMPagePhys2PageTry(pState->pVM, HCPhys, &pvPage);
951	if (RT_FAILURE(rc))
952	{
953	pState->pHlp->pfnPrintf(pState->pHlp, "%0*llx error! %s at HCPhys=%RHp was not found in the page pool!\n",
954	pState->cchAddress, pState->u64Address, pszDesc, HCPhys);
955	return rc;
956	}
957	}
958	else
959	{
960	pvPage = NULL;
961	for (PPGMMAPPING pMap = pState->pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
962	{
963	uint64_t off = pState->u64Address - pMap->GCPtr;
964	if (off < pMap->cb)
965	{
966	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
967	const int iSub = (int)((off >> X86_PD_PAE_SHIFT) & 1); /* MSC is a pain sometimes */
968	if ((iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0) != HCPhys)
969	pState->pHlp->pfnPrintf(pState->pHlp,
970	"%0*llx error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
971	pState->cchAddress, pState->u64Address, iPDE,
972	iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0, HCPhys);
973	pvPage = &pMap->aPTs[iPDE].paPaePTsR3[iSub];
974	break;
975	}
976	}
977	if (!pvPage)
978	{
979	pState->pHlp->pfnPrintf(pState->pHlp, "%0*llx error! PT mapping %s at HCPhys=%RHp was not found in the page pool!\n",
980	pState->cchAddress, pState->u64Address, HCPhys);
981	return VERR_INVALID_PARAMETER;
982	}
983	}
984	*ppv = pvPage;
985	return VINF_SUCCESS;
986	}
987
988
989	/**
990	* Dumps the a shadow page summary or smth.
991	*
992	* @param pState The dumper state.
993	* @param HCPhys The page address.
994	*/
995	static void pgmR3DumpHierarchyShwTablePageInfo(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys)
996	{
997	pgmLock(pState->pVM);
998	char szPage[80];
999	PPGMPOOLPAGE pPage = pgmPoolQueryPageForDbg(pState->pVM->pgm.s.CTX_SUFF(pPool), HCPhys);
1000	if (pPage)
1001	RTStrPrintf(szPage, sizeof(szPage), " idx=0i%u", pPage->idx);
1002	else
1003	{
1004	/* probably a mapping */
1005	strcpy(szPage, " not found");
1006	for (PPGMMAPPING pMap = pState->pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
1007	{
1008	uint64_t off = pState->u64Address - pMap->GCPtr;
1009	if (off < pMap->cb)
1010	{
1011	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
1012	if (pMap->aPTs[iPDE].HCPhysPT == HCPhys)
1013	RTStrPrintf(szPage, sizeof(szPage), " #%u: %s", iPDE, pMap->pszDesc);
1014	else if (pMap->aPTs[iPDE].HCPhysPaePT0 == HCPhys)
1015	RTStrPrintf(szPage, sizeof(szPage), " #%u/0: %s", iPDE, pMap->pszDesc);
1016	else if (pMap->aPTs[iPDE].HCPhysPaePT1 == HCPhys)
1017	RTStrPrintf(szPage, sizeof(szPage), " #%u/1: %s", iPDE, pMap->pszDesc);
1018	else
1019	continue;
1020	break;
1021	}
1022	}
1023	}
1024	pgmUnlock(pState->pVM);
1025	pState->pHlp->pfnPrintf(pState->pHlp, "%s", szPage);
1026	}
1027
1028
1029	/**
1030	* Figures out which guest page this is and dumps a summary.
1031	*
1032	* @param pState The dumper state.
1033	* @param HCPhys The page address.
1034	* @param cbPage The page size.
1035	*/
1036	static void pgmR3DumpHierarchyShwGuestPageInfo(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, uint32_t cbPage)
1037	{
1038	char szPage[80];
1039	RTGCPHYS GCPhys;
1040	int rc = PGMR3DbgHCPhys2GCPhys(pState->pVM, HCPhys, &GCPhys);
1041	if (RT_SUCCESS(rc))
1042	{
1043	pgmLock(pState->pVM);
1044	PCPGMPAGE pPage = pgmPhysGetPage(pState->pVM, GCPhys);
1045	if (pPage)
1046	RTStrPrintf(szPage, sizeof(szPage), "%R[pgmpage]", pPage);
1047	else
1048	strcpy(szPage, "not found");
1049	pgmUnlock(pState->pVM);
1050	pState->pHlp->pfnPrintf(pState->pHlp, " -> %RGp %s", GCPhys, szPage);
1051	}
1052	else
1053	{
1054	/* check the heap */
1055	uint32_t cbAlloc;
1056	rc = MMR3HyperQueryInfoFromHCPhys(pState->pVM, HCPhys, szPage, sizeof(szPage), &cbAlloc);
1057	if (RT_SUCCESS(rc))
1058	pState->pHlp->pfnPrintf(pState->pHlp, " %s %#x bytes", szPage, cbAlloc);
1059	else
1060	pState->pHlp->pfnPrintf(pState->pHlp, " not found");
1061	}
1062	NOREF(cbPage);
1063	}
1064
1065
1066	/**
1067	* Dumps a PAE shadow page table.
1068	*
1069	* @returns VBox status code (VINF_SUCCESS).
1070	* @param pState The dumper state.
1071	* @param HCPhys The page table address.
1072	* @param fIsMapping Whether it is a mapping.
1073	*/
1074	static int pgmR3DumpHierarchyShwPaePT(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, bool fIsMapping)
1075	{
1076	PCPGMSHWPTPAE pPT;
1077	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page table", fIsMapping, (void const **)&pPT);
1078	if (RT_FAILURE(rc))
1079	return rc;
1080
1081	uint32_t iFirst, iLast;
1082	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PT_PAE_SHIFT, X86_PG_PAE_ENTRIES, &iFirst, &iLast);
1083	for (uint32_t i = iFirst; i <= iLast; i++)
1084	if (PGMSHWPTEPAE_GET_U(pPT->a[i]) & X86_PTE_P)
1085	{
1086	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PT_PAE_SHIFT);
1087	if (PGMSHWPTEPAE_IS_P(pPT->a[i]))
1088	{
1089	X86PTEPAE Pte;
1090	Pte.u = PGMSHWPTEPAE_GET_U(pPT->a[i]);
1091	pState->pHlp->pfnPrintf(pState->pHlp,
1092	pState->fLme /P R S A D G WT CD AT NX 4M a p ? /
1093	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx"
1094	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx",
1095	pState->u64Address,
1096	Pte.n.u1Write ? 'W' : 'R',
1097	Pte.n.u1User ? 'U' : 'S',
1098	Pte.n.u1Accessed ? 'A' : '-',
1099	Pte.n.u1Dirty ? 'D' : '-',
1100	Pte.n.u1Global ? 'G' : '-',
1101	Pte.n.u1WriteThru ? "WT" : "--",
1102	Pte.n.u1CacheDisable? "CD" : "--",
1103	Pte.n.u1PAT ? "AT" : "--",
1104	Pte.n.u1NoExecute ? "NX" : "--",
1105	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
1106	Pte.u & RT_BIT(10) ? '1' : '0',
1107	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED? 'v' : '-',
1108	Pte.u & X86_PTE_PAE_PG_MASK);
1109	if (pState->fDumpPageInfo)
1110	pgmR3DumpHierarchyShwGuestPageInfo(pState, Pte.u & X86_PTE_PAE_PG_MASK, _4K);
1111	if ((Pte.u >> 52) & 0x7ff)
1112	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx%s", (Pte.u >> 52) & 0x7ff, pState->fLme ? "" : "!");
1113	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1114	}
1115	else if ( (PGMSHWPTEPAE_GET_U(pPT->a[i]) & (pState->pVM->pgm.s.HCPhysInvMmioPg \| X86_PTE_PAE_MBZ_MASK_NO_NX))
1116	== (pState->pVM->pgm.s.HCPhysInvMmioPg \| X86_PTE_PAE_MBZ_MASK_NO_NX))
1117	pState->pHlp->pfnPrintf(pState->pHlp,
1118	pState->fLme
1119	? "%016llx 3 \| invalid / MMIO optimization\n"
1120	: "%08llx 2 \| invalid / MMIO optimization\n",
1121	pState->u64Address);
1122	else
1123	pState->pHlp->pfnPrintf(pState->pHlp,
1124	pState->fLme
1125	? "%016llx 3 \| invalid: %RX64\n"
1126	: "%08llx 2 \| invalid: %RX64\n",
1127	pState->u64Address, PGMSHWPTEPAE_GET_U(pPT->a[i]));
1128	pState->cLeaves++;
1129	}
1130	return VINF_SUCCESS;
1131	}
1132
1133
1134	/**
1135	* Dumps a PAE shadow page directory table.
1136	*
1137	* @returns VBox status code (VINF_SUCCESS).
1138	* @param pState The dumper state.
1139	* @param HCPhys The physical address of the page directory table.
1140	* @param cMaxDepth The maximum depth.
1141	*/
1142	static int pgmR3DumpHierarchyShwPaePD(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, unsigned cMaxDepth)
1143	{
1144	PCX86PDPAE pPD;
1145	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page directory", false, (void const **)&pPD);
1146	if (RT_FAILURE(rc))
1147	return rc;
1148
1149	Assert(cMaxDepth > 0);
1150	cMaxDepth--;
1151
1152	uint32_t iFirst, iLast;
1153	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PD_PAE_SHIFT, X86_PG_PAE_ENTRIES, &iFirst, &iLast);
1154	for (uint32_t i = iFirst; i <= iLast; i++)
1155	{
1156	X86PDEPAE Pde = pPD->a[i];
1157	if (Pde.n.u1Present)
1158	{
1159	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PD_PAE_SHIFT);
1160	if (Pde.b.u1Size)
1161	{
1162	pState->pHlp->pfnPrintf(pState->pHlp,
1163	pState->fLme /P R S A D G WT CD AT NX 2M a p ? phys/
1164	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 2M %c%c%c %016llx"
1165	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 2M %c%c%c %016llx",
1166	pState->u64Address,
1167	Pde.b.u1Write ? 'W' : 'R',
1168	Pde.b.u1User ? 'U' : 'S',
1169	Pde.b.u1Accessed ? 'A' : '-',
1170	Pde.b.u1Dirty ? 'D' : '-',
1171	Pde.b.u1Global ? 'G' : '-',
1172	Pde.b.u1WriteThru ? "WT" : "--",
1173	Pde.b.u1CacheDisable? "CD" : "--",
1174	Pde.b.u1PAT ? "AT" : "--",
1175	Pde.b.u1NoExecute ? "NX" : "--",
1176	Pde.u & RT_BIT_64(9) ? '1' : '0',
1177	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
1178	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
1179	Pde.u & X86_PDE2M_PAE_PG_MASK);
1180	if (pState->fDumpPageInfo)
1181	pgmR3DumpHierarchyShwGuestPageInfo(pState, Pde.u & X86_PDE2M_PAE_PG_MASK, _2M);
1182	if ((Pde.u >> 52) & 0x7ff)
1183	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx%s", (Pde.u >> 52) & 0x7ff, pState->fLme ? "" : "!");
1184	if ((Pde.u >> 13) & 0xff)
1185	pState->pHlp->pfnPrintf(pState->pHlp, " 20:13=%02llx%s", (Pde.u >> 13) & 0x0ff, pState->fLme ? "" : "!");
1186	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1187
1188	pState->cLeaves++;
1189	}
1190	else
1191	{
1192	pState->pHlp->pfnPrintf(pState->pHlp,
1193	pState->fLme /P R S A D G WT CD AT NX 4M a p ? phys /
1194	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s .. %c%c%c %016llx"
1195	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s .. %c%c%c %016llx",
1196	pState->u64Address,
1197	Pde.n.u1Write ? 'W' : 'R',
1198	Pde.n.u1User ? 'U' : 'S',
1199	Pde.n.u1Accessed ? 'A' : '-',
1200	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
1201	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
1202	Pde.n.u1WriteThru ? "WT" : "--",
1203	Pde.n.u1CacheDisable? "CD" : "--",
1204	Pde.n.u1NoExecute ? "NX" : "--",
1205	Pde.u & RT_BIT_64(9) ? '1' : '0',
1206	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
1207	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
1208	Pde.u & X86_PDE_PAE_PG_MASK);
1209	if (pState->fDumpPageInfo)
1210	pgmR3DumpHierarchyShwTablePageInfo(pState, Pde.u & X86_PDE_PAE_PG_MASK);
1211	if ((Pde.u >> 52) & 0x7ff)
1212	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx!", (Pde.u >> 52) & 0x7ff);
1213	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1214
1215	if (cMaxDepth)
1216	{
1217	int rc2 = pgmR3DumpHierarchyShwPaePT(pState, Pde.u & X86_PDE_PAE_PG_MASK, !!(Pde.u & PGM_PDFLAGS_MAPPING));
1218	if (rc2 < rc && RT_SUCCESS(rc))
1219	rc = rc2;
1220	}
1221	else
1222	pState->cLeaves++;
1223	}
1224	}
1225	}
1226	return rc;
1227	}
1228
1229
1230	/**
1231	* Dumps a PAE shadow page directory pointer table.
1232	*
1233	* @returns VBox status code (VINF_SUCCESS).
1234	* @param pState The dumper state.
1235	* @param HCPhys The physical address of the page directory pointer table.
1236	* @param cMaxDepth The maximum depth.
1237	*/
1238	static int pgmR3DumpHierarchyShwPaePDPT(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, unsigned cMaxDepth)
1239	{
1240	/* Fend of addresses that are out of range in PAE mode - simplifies the code below. */
1241	if (!pState->fLme && pState->u64Address >= _4G)
1242	return VINF_SUCCESS;
1243
1244	PCX86PDPT pPDPT;
1245	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page directory pointer table", false, (void const **)&pPDPT);
1246	if (RT_FAILURE(rc))
1247	return rc;
1248
1249	Assert(cMaxDepth > 0);
1250	cMaxDepth--;
1251
1252	uint32_t iFirst, iLast;
1253	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PDPT_SHIFT,
1254	pState->fLme ? X86_PG_AMD64_PDPE_ENTRIES : X86_PG_PAE_PDPE_ENTRIES,
1255	&iFirst, &iLast);
1256	for (uint32_t i = iFirst; i <= iLast; i++)
1257	{
1258	X86PDPE Pdpe = pPDPT->a[i];
1259	if (Pdpe.n.u1Present)
1260	{
1261	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PDPT_SHIFT);
1262	if (pState->fLme)
1263	{
1264	pState->pHlp->pfnPrintf(pState->pHlp, /P R S A D G WT CD AT NX .. a p ? /
1265	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1266	pState->u64Address,
1267	Pdpe.lm.u1Write ? 'W' : 'R',
1268	Pdpe.lm.u1User ? 'U' : 'S',
1269	Pdpe.lm.u1Accessed ? 'A' : '-',
1270	Pdpe.lm.u3Reserved & 1? '?' : '.', /* ignored */
1271	Pdpe.lm.u3Reserved & 4? '!' : '.', /* mbz */
1272	Pdpe.lm.u1WriteThru ? "WT" : "--",
1273	Pdpe.lm.u1CacheDisable? "CD" : "--",
1274	Pdpe.lm.u3Reserved & 2? "!" : "..",/* mbz */
1275	Pdpe.lm.u1NoExecute ? "NX" : "--",
1276	Pdpe.u & RT_BIT(9) ? '1' : '0',
1277	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
1278	Pdpe.u & RT_BIT(11) ? '1' : '0',
1279	Pdpe.u & X86_PDPE_PG_MASK);
1280	if (pState->fDumpPageInfo)
1281	pgmR3DumpHierarchyShwTablePageInfo(pState, Pdpe.u & X86_PDPE_PG_MASK);
1282	if ((Pdpe.u >> 52) & 0x7ff)
1283	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx", (Pdpe.u >> 52) & 0x7ff);
1284	}
1285	else
1286	{
1287	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX .. a p ? /
1288	"%08llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1289	pState->u64Address,
1290	Pdpe.n.u2Reserved & 1? '!' : '.', /* mbz */
1291	Pdpe.n.u2Reserved & 2? '!' : '.', /* mbz */
1292	Pdpe.n.u4Reserved & 1? '!' : '.', /* mbz */
1293	Pdpe.n.u4Reserved & 2? '!' : '.', /* mbz */
1294	Pdpe.n.u4Reserved & 8? '!' : '.', /* mbz */
1295	Pdpe.n.u1WriteThru ? "WT" : "--",
1296	Pdpe.n.u1CacheDisable? "CD" : "--",
1297	Pdpe.n.u4Reserved & 2? "!" : "..",/* mbz */
1298	Pdpe.lm.u1NoExecute ? "!!" : "..",/* mbz */
1299	Pdpe.u & RT_BIT(9) ? '1' : '0',
1300	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
1301	Pdpe.u & RT_BIT(11) ? '1' : '0',
1302	Pdpe.u & X86_PDPE_PG_MASK);
1303	if (pState->fDumpPageInfo)
1304	pgmR3DumpHierarchyShwTablePageInfo(pState, Pdpe.u & X86_PDPE_PG_MASK);
1305	if ((Pdpe.u >> 52) & 0xfff)
1306	pState->pHlp->pfnPrintf(pState->pHlp, " 63:52=%03llx!", (Pdpe.u >> 52) & 0xfff);
1307	}
1308	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1309
1310	if (cMaxDepth)
1311	{
1312	int rc2 = pgmR3DumpHierarchyShwPaePD(pState, Pdpe.u & X86_PDPE_PG_MASK, cMaxDepth);
1313	if (rc2 < rc && RT_SUCCESS(rc))
1314	rc = rc2;
1315	}
1316	else
1317	pState->cLeaves++;
1318	}
1319	}
1320	return rc;
1321	}
1322
1323
1324	/**
1325	* Dumps a 32-bit shadow page table.
1326	*
1327	* @returns VBox status code (VINF_SUCCESS).
1328	* @param pVM The VM handle.
1329	* @param HCPhys The physical address of the table.
1330	* @param cMaxDepth The maximum depth.
1331	*/
1332	static int pgmR3DumpHierarchyShwPaePML4(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, unsigned cMaxDepth)
1333	{
1334	PCX86PML4 pPML4;
1335	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page map level 4", false, (void const **)&pPML4);
1336	if (RT_FAILURE(rc))
1337	return rc;
1338
1339	Assert(cMaxDepth);
1340	cMaxDepth--;
1341
1342	/*
1343	* This is a bit tricky as we're working on unsigned addresses while the
1344	* AMD64 spec uses signed tricks.
1345	*/
1346	uint32_t iFirst = (pState->u64FirstAddress >> X86_PML4_SHIFT) & X86_PML4_MASK;
1347	uint32_t iLast = (pState->u64LastAddress >> X86_PML4_SHIFT) & X86_PML4_MASK;
1348	if ( pState->u64LastAddress <= UINT64_C(0x00007fffffffffff)
1349	\|\| pState->u64FirstAddress >= UINT64_C(0xffff800000000000))
1350	{ /* Simple, nothing to adjust */ }
1351	else if (pState->u64FirstAddress <= UINT64_C(0x00007fffffffffff))
1352	iLast = X86_PG_AMD64_ENTRIES / 2 - 1;
1353	else if (pState->u64LastAddress >= UINT64_C(0xffff800000000000))
1354	iFirst = X86_PG_AMD64_ENTRIES / 2;
1355	else
1356	iFirst = X86_PG_AMD64_ENTRIES; /* neither address is canonical */
1357
1358	for (uint32_t i = iFirst; i <= iLast; i++)
1359	{
1360	X86PML4E Pml4e = pPML4->a[i];
1361	if (Pml4e.n.u1Present)
1362	{
1363	pState->u64Address = ((uint64_t)i << X86_PML4_SHIFT)
1364	\| (i >= RT_ELEMENTS(pPML4->a) / 2 ? UINT64_C(0xffff000000000000) : 0);
1365	pState->pHlp->pfnPrintf(pState->pHlp, /P R S A D G WT CD AT NX 4M a p ? /
1366	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1367	pState->u64Address,
1368	Pml4e.n.u1Write ? 'W' : 'R',
1369	Pml4e.n.u1User ? 'U' : 'S',
1370	Pml4e.n.u1Accessed ? 'A' : '-',
1371	Pml4e.n.u3Reserved & 1? '?' : '.', /* ignored */
1372	Pml4e.n.u3Reserved & 4? '!' : '.', /* mbz */
1373	Pml4e.n.u1WriteThru ? "WT" : "--",
1374	Pml4e.n.u1CacheDisable? "CD" : "--",
1375	Pml4e.n.u3Reserved & 2? "!" : "..",/* mbz */
1376	Pml4e.n.u1NoExecute ? "NX" : "--",
1377	Pml4e.u & RT_BIT(9) ? '1' : '0',
1378	Pml4e.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
1379	Pml4e.u & RT_BIT(11) ? '1' : '0',
1380	Pml4e.u & X86_PML4E_PG_MASK);
1381	if (pState->fDumpPageInfo)
1382	pgmR3DumpHierarchyShwTablePageInfo(pState, Pml4e.u & X86_PML4E_PG_MASK);
1383	if ((Pml4e.u >> 52) & 0x7ff)
1384	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx!", (Pml4e.u >> 52) & 0x7ff);
1385	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1386
1387	if (cMaxDepth)
1388	{
1389	int rc2 = pgmR3DumpHierarchyShwPaePDPT(pState, Pml4e.u & X86_PML4E_PG_MASK, cMaxDepth);
1390	if (rc2 < rc && RT_SUCCESS(rc))
1391	rc = rc2;
1392	}
1393	else
1394	pState->cLeaves++;
1395	}
1396	}
1397	return rc;
1398	}
1399
1400
1401	/**
1402	* Dumps a 32-bit shadow page table.
1403	*
1404	* @returns VBox status code (VINF_SUCCESS).
1405	* @param pVM The VM handle.
1406	* @param pPT Pointer to the page table.
1407	* @param fMapping Set if it's a guest mapping.
1408	*/
1409	static int pgmR3DumpHierarchyShw32BitPT(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, bool fMapping)
1410	{
1411	PCX86PT pPT;
1412	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page table", fMapping, (void const **)&pPT);
1413	if (RT_FAILURE(rc))
1414	return rc;
1415
1416	uint32_t iFirst, iLast;
1417	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PT_SHIFT, X86_PG_ENTRIES, &iFirst, &iLast);
1418	for (uint32_t i = iFirst; i <= iLast; i++)
1419	{
1420	X86PTE Pte = pPT->a[i];
1421	if (Pte.n.u1Present)
1422	{
1423	pState->u64Address = u64BaseAddress + (i << X86_PT_SHIFT);
1424	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d /
1425	"%08llx 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x",
1426	pState->u64Address,
1427	Pte.n.u1Write ? 'W' : 'R',
1428	Pte.n.u1User ? 'U' : 'S',
1429	Pte.n.u1Accessed ? 'A' : '-',
1430	Pte.n.u1Dirty ? 'D' : '-',
1431	Pte.n.u1Global ? 'G' : '-',
1432	Pte.n.u1WriteThru ? "WT" : "--",
1433	Pte.n.u1CacheDisable? "CD" : "--",
1434	Pte.n.u1PAT ? "AT" : "--",
1435	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
1436	Pte.u & RT_BIT(10) ? '1' : '0',
1437	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
1438	Pte.u & X86_PDE_PG_MASK);
1439	if (pState->fDumpPageInfo)
1440	pgmR3DumpHierarchyShwGuestPageInfo(pState, Pte.u & X86_PDE_PG_MASK, _4K);
1441	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1442	}
1443	}
1444	return VINF_SUCCESS;
1445	}
1446
1447
1448	/**
1449	* Dumps a 32-bit shadow page directory and page tables.
1450	*
1451	* @returns VBox status code (VINF_SUCCESS).
1452	* @param pState The dumper state.
1453	* @param HCPhys The physical address of the table.
1454	* @param cMaxDepth The maximum depth.
1455	*/
1456	static int pgmR3DumpHierarchyShw32BitPD(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, unsigned cMaxDepth)
1457	{
1458	if (pState->u64Address >= _4G)
1459	return VINF_SUCCESS;
1460
1461	PCX86PD pPD;
1462	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page directory", false, (void const **)&pPD);
1463	if (RT_FAILURE(rc))
1464	return rc;
1465
1466	Assert(cMaxDepth > 0);
1467	cMaxDepth--;
1468
1469	uint32_t iFirst, iLast;
1470	pgmR3DumpHierarchyCalcRange(pState, X86_PD_SHIFT, X86_PG_ENTRIES, &iFirst, &iLast);
1471	for (uint32_t i = iFirst; i <= iLast; i++)
1472	{
1473	X86PDE Pde = pPD->a[i];
1474	if (Pde.n.u1Present)
1475	{
1476	pState->u64Address = (uint32_t)i << X86_PD_SHIFT;
1477	if (Pde.b.u1Size && pState->fPse)
1478	{
1479	uint64_t u64Phys = ((uint64_t)(Pde.u & X86_PDE4M_PG_HIGH_MASK) << X86_PDE4M_PG_HIGH_SHIFT)
1480	\| (Pde.u & X86_PDE4M_PG_MASK);
1481	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d phys /
1482	"%08llx 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08llx",
1483	pState->u64Address,
1484	Pde.b.u1Write ? 'W' : 'R',
1485	Pde.b.u1User ? 'U' : 'S',
1486	Pde.b.u1Accessed ? 'A' : '-',
1487	Pde.b.u1Dirty ? 'D' : '-',
1488	Pde.b.u1Global ? 'G' : '-',
1489	Pde.b.u1WriteThru ? "WT" : "--",
1490	Pde.b.u1CacheDisable? "CD" : "--",
1491	Pde.b.u1PAT ? "AT" : "--",
1492	Pde.u & RT_BIT_32(9) ? '1' : '0',
1493	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
1494	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
1495	u64Phys);
1496	if (pState->fDumpPageInfo)
1497	pgmR3DumpHierarchyShwGuestPageInfo(pState, u64Phys, _4M);
1498	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1499	pState->cLeaves++;
1500	}
1501	else
1502	{
1503	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d phys /
1504	"%08llx 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x",
1505	pState->u64Address,
1506	Pde.n.u1Write ? 'W' : 'R',
1507	Pde.n.u1User ? 'U' : 'S',
1508	Pde.n.u1Accessed ? 'A' : '-',
1509	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
1510	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
1511	Pde.n.u1WriteThru ? "WT" : "--",
1512	Pde.n.u1CacheDisable? "CD" : "--",
1513	Pde.u & RT_BIT_32(9) ? '1' : '0',
1514	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
1515	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
1516	Pde.u & X86_PDE_PG_MASK);
1517	if (pState->fDumpPageInfo)
1518	pgmR3DumpHierarchyShwTablePageInfo(pState, Pde.u & X86_PDE_PG_MASK);
1519	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1520
1521	if (cMaxDepth)
1522	{
1523	int rc2 = pgmR3DumpHierarchyShw32BitPT(pState, Pde.u & X86_PDE_PG_MASK, !!(Pde.u & PGM_PDFLAGS_MAPPING));
1524	if (rc2 < rc && RT_SUCCESS(rc))
1525	rc = rc2;
1526	}
1527	else
1528	pState->cLeaves++;
1529	}
1530	}
1531	}
1532
1533	return rc;
1534	}
1535
1536
1537	/**
1538	* Internal worker that initiates the actual dump.
1539	*
1540	* @returns VBox status code.
1541	* @param pState The dumper state.
1542	* @param cr3 The CR3 value.
1543	* @param cMaxDepth The max depth.
1544	*/
1545	static int pgmR3DumpHierarchyShwDoIt(PPGMR3DUMPHIERARCHYSTATE pState, uint64_t cr3, unsigned cMaxDepth)
1546	{
1547	int rc;
1548	unsigned const cch = pState->cchAddress;
1549	uint64_t const cr3Mask = pState->fEpt ? X86_CR3_AMD64_PAGE_MASK
1550	: pState->fLme ? X86_CR3_AMD64_PAGE_MASK
1551	: pState->fPae ? X86_CR3_PAE_PAGE_MASK
1552	: X86_CR3_PAGE_MASK;
1553	if (pState->fPrintCr3)
1554	{
1555	const char * const pszMode = pState->fEpt ? "Extended Page Tables"
1556	: pState->fLme ? "Long Mode"
1557	: pState->fPae ? "PAE Mode"
1558	: pState->fPse ? "32-bit w/ PSE"
1559	: "32-bit";
1560	pState->pHlp->pfnPrintf(pState->pHlp, "cr3=%0*llx", cch, cr3);
1561	if (pState->fDumpPageInfo)
1562	pgmR3DumpHierarchyShwTablePageInfo(pState, cr3 & X86_CR3_AMD64_PAGE_MASK);
1563	pState->pHlp->pfnPrintf(pState->pHlp, " %s%s%s\n",
1564	pszMode,
1565	pState->fNp ? " + Nested Paging" : "",
1566	pState->fNxe ? " + NX" : "");
1567	}
1568
1569
1570	if (pState->fEpt)
1571	{
1572	if (pState->fPrintHeader)
1573	pState->pHlp->pfnPrintf(pState->pHlp,
1574	"%-*s R - Readable\n"
1575	"%-*s \| W - Writeable\n"
1576	"%-*s \| \| X - Executable\n"
1577	"%-*s \| \| \| EMT - EPT memory type\n"
1578	"%-*s \| \| \| \| PAT - Ignored PAT?\n"
1579	"%-*s \| \| \| \| \| AVL1 - 4 available bits\n"
1580	"%-*s \| \| \| \| \| \| AVL2 - 12 available bits\n"
1581	"%-*s Level \| \| \| \| \| \| \| page \n"
1582	/* xxxx n **** R W X EMT PAT AVL1 AVL2 xxxxxxxxxxxxx
1583	R W X 7 0 f fff 0123456701234567 */
1584	,
1585	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
1586
1587	pState->pHlp->pfnPrintf(pState->pHlp, "EPT dumping is not yet implemented, sorry.\n");
1588	/** @todo implemented EPT dumping. */
1589	rc = VERR_NOT_IMPLEMENTED;
1590	}
1591	else
1592	{
1593	if (pState->fPrintHeader)
1594	pState->pHlp->pfnPrintf(pState->pHlp,
1595	"%-*s P - Present\n"
1596	"%-*s \| R/W - Read (0) / Write (1)\n"
1597	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
1598	"%-*s \| \| \| A - Accessed\n"
1599	"%-*s \| \| \| \| D - Dirty\n"
1600	"%-*s \| \| \| \| \| G - Global\n"
1601	"%-*s \| \| \| \| \| \| WT - Write thru\n"
1602	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
1603	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
1604	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
1605	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
1606	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
1607	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
1608	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
1609	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
1610	- W U - - - -- -- -- -- -- 010 */
1611	,
1612	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
1613	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
1614	if (pState->fLme)
1615	rc = pgmR3DumpHierarchyShwPaePML4(pState, cr3 & cr3Mask, cMaxDepth);
1616	else if (pState->fPae)
1617	rc = pgmR3DumpHierarchyShwPaePDPT(pState, cr3 & cr3Mask, cMaxDepth);
1618	else
1619	rc = pgmR3DumpHierarchyShw32BitPD(pState, cr3 & cr3Mask, cMaxDepth);
1620	}
1621
1622	if (!pState->cLeaves)
1623	pState->pHlp->pfnPrintf(pState->pHlp, "not present\n");
1624	return rc;
1625	}
1626
1627
1628	/**
1629	* dbgfR3PagingDumpEx worker.
1630	*
1631	* @returns VBox status code.
1632	* @param pVM The VM handle.
1633	* @param cr3 The CR3 register value.
1634	* @param fFlags The flags, DBGFPGDMP_FLAGS_XXX.
1635	* @param u64FirstAddr The start address.
1636	* @param u64LastAddr The address to stop after.
1637	* @param cMaxDepth The max depth.
1638	* @param pHlp The output callbacks. Defaults to log if NULL.
1639	*
1640	* @internal
1641	*/
1642	VMMR3_INT_DECL(int) PGMR3DumpHierarchyShw(PVM pVM, uint64_t cr3, uint32_t fFlags, uint64_t u64FirstAddr, uint64_t u64LastAddr,
1643	uint32_t cMaxDepth, PCDBGFINFOHLP pHlp)
1644	{
1645	/* Minimal validation as we're only supposed to service DBGF. */
1646	AssertReturn(~(fFlags & ~DBGFPGDMP_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
1647	AssertReturn(!(fFlags & (DBGFPGDMP_FLAGS_CURRENT_MODE \| DBGFPGDMP_FLAGS_CURRENT_CR3)), VERR_INVALID_PARAMETER);
1648	AssertReturn(fFlags & DBGFPGDMP_FLAGS_SHADOW, VERR_INVALID_PARAMETER);
1649
1650	PGMR3DUMPHIERARCHYSTATE State;
1651	pgmR3DumpHierarchyInitState(&State, pVM, fFlags, u64FirstAddr, u64LastAddr, pHlp);
1652	return pgmR3DumpHierarchyShwDoIt(&State, cr3, cMaxDepth);
1653	}
1654
1655
1656	/**
1657	* Dumps a page table hierarchy use only physical addresses and cr4/lm flags.
1658	*
1659	* @returns VBox status code (VINF_SUCCESS).
1660	* @param pVM The VM handle.
1661	* @param cr3 The root of the hierarchy.
1662	* @param cr4 The cr4, only PAE and PSE is currently used.
1663	* @param fLongMode Set if long mode, false if not long mode.
1664	* @param cMaxDepth Number of levels to dump.
1665	* @param pHlp Pointer to the output functions.
1666	*
1667	* @deprecated Use DBGFR3PagingDumpEx.
1668	*/
1669	VMMR3DECL(int) PGMR3DumpHierarchyHC(PVM pVM, uint64_t cr3, uint64_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
1670	{
1671	if (!cMaxDepth)
1672	return VINF_SUCCESS;
1673
1674	PVMCPU pVCpu = VMMGetCpu(pVM);
1675	if (!pVCpu)
1676	pVCpu = &pVM->aCpus[0];
1677
1678	uint32_t fFlags = DBGFPGDMP_FLAGS_HEADER \| DBGFPGDMP_FLAGS_PRINT_CR3 \| DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_SHADOW;
1679	fFlags \|= cr4 & (X86_CR4_PAE \| X86_CR4_PSE);
1680	if (fLongMode)
1681	fFlags \|= DBGFPGDMP_FLAGS_LME;
1682
1683	return DBGFR3PagingDumpEx(pVM, pVCpu->idCpu, fFlags, cr3, 0, fLongMode ? UINT64_MAX : UINT32_MAX, cMaxDepth, pHlp);
1684	}
1685
1686
1687	/**
1688	* Maps the guest page.
1689	*
1690	* @returns VBox status code.
1691	* @param pState The dumper state.
1692	* @param GCPhys The physical address of the guest page.
1693	* @param pszDesc The description.
1694	* @param ppv Where to return the pointer.
1695	* @param pLock Where to return the mapping lock. Hand this to
1696	* PGMPhysReleasePageMappingLock when done.
1697	*/
1698	static int pgmR3DumpHierarchyGstMapPage(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys, const char *pszDesc,
1699	void const **ppv, PPGMPAGEMAPLOCK pLock)
1700	{
1701	int rc = PGMPhysGCPhys2CCPtrReadOnly(pState->pVM, GCPhys, ppv, pLock);
1702	if (RT_FAILURE(rc))
1703	{
1704	pState->pHlp->pfnPrintf(pState->pHlp, "%0*llx error! Failed to map %s at GCPhys=%RGp: %Rrc!\n",
1705	pState->cchAddress, pState->u64Address, pszDesc, GCPhys, rc);
1706	return rc;
1707	}
1708	return VINF_SUCCESS;
1709	}
1710
1711
1712	/**
1713	* Figures out which guest page this is and dumps a summary.
1714	*
1715	* @param pState The dumper state.
1716	* @param GCPhys The page address.
1717	* @param cbPage The page size.
1718	*/
1719	static void pgmR3DumpHierarchyGstPageInfo(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys, uint32_t cbPage)
1720	{
1721	char szPage[80];
1722	pgmLock(pState->pVM);
1723	PCPGMPAGE pPage = pgmPhysGetPage(pState->pVM, GCPhys);
1724	if (pPage)
1725	RTStrPrintf(szPage, sizeof(szPage), " %R[pgmpage]", pPage);
1726	else
1727	strcpy(szPage, " not found");
1728	pgmUnlock(pState->pVM);
1729	pState->pHlp->pfnPrintf(pState->pHlp, "%s", szPage);
1730	NOREF(cbPage);
1731	}
1732
1733
1734	/**
1735	* Checks the entry for reserved bits.
1736	*
1737	* @param pState The dumper state.
1738	* @param u64Entry The entry to check.
1739	*/
1740	static void pgmR3DumpHierarchyGstCheckReservedHighBits(PPGMR3DUMPHIERARCHYSTATE pState, uint64_t u64Entry)
1741	{
1742	uint32_t uRsvd = (u64Entry & pState->u64HighReservedBits) >> 52;
1743	if (uRsvd)
1744	pState->pHlp->pfnPrintf(pState->pHlp, " %u:52=%03x%s",
1745	pState->uLastRsvdBit, uRsvd, pState->fLme ? "" : "!");
1746	/** @todo check the valid physical bits as well. */
1747	}
1748
1749
1750	/**
1751	* Dumps a PAE shadow page table.
1752	*
1753	* @returns VBox status code (VINF_SUCCESS).
1754	* @param pState The dumper state.
1755	* @param GCPhys The page table address.
1756	*/
1757	static int pgmR3DumpHierarchyGstPaePT(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys)
1758	{
1759	PCX86PTPAE pPT;
1760	PGMPAGEMAPLOCK Lock;
1761	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page table", (void const **)&pPT, &Lock);
1762	if (RT_FAILURE(rc))
1763	return rc;
1764
1765	uint32_t iFirst, iLast;
1766	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PT_PAE_SHIFT, X86_PG_PAE_ENTRIES, &iFirst, &iLast);
1767	for (uint32_t i = iFirst; i <= iLast; i++)
1768	{
1769	X86PTEPAE Pte = pPT->a[i];
1770	if (Pte.n.u1Present)
1771	{
1772	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PT_PAE_SHIFT);
1773	pState->pHlp->pfnPrintf(pState->pHlp,
1774	pState->fLme /P R S A D G WT CD AT NX 4M a p ? /
1775	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx"
1776	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx",
1777	pState->u64Address,
1778	Pte.n.u1Write ? 'W' : 'R',
1779	Pte.n.u1User ? 'U' : 'S',
1780	Pte.n.u1Accessed ? 'A' : '-',
1781	Pte.n.u1Dirty ? 'D' : '-',
1782	Pte.n.u1Global ? 'G' : '-',
1783	Pte.n.u1WriteThru ? "WT" : "--",
1784	Pte.n.u1CacheDisable? "CD" : "--",
1785	Pte.n.u1PAT ? "AT" : "--",
1786	Pte.n.u1NoExecute ? "NX" : "--",
1787	Pte.u & RT_BIT(9) ? '1' : '0',
1788	Pte.u & RT_BIT(10) ? '1' : '0',
1789	Pte.u & RT_BIT(11) ? '1' : '0',
1790	Pte.u & X86_PTE_PAE_PG_MASK);
1791	if (pState->fDumpPageInfo)
1792	pgmR3DumpHierarchyGstPageInfo(pState, Pte.u & X86_PTE_PAE_PG_MASK, _4K);
1793	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pte.u);
1794	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1795	pState->cLeaves++;
1796	}
1797	}
1798
1799	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
1800	return VINF_SUCCESS;
1801	}
1802
1803
1804	/**
1805	* Dumps a PAE shadow page directory table.
1806	*
1807	* @returns VBox status code (VINF_SUCCESS).
1808	* @param pState The dumper state.
1809	* @param GCPhys The physical address of the table.
1810	* @param cMaxDepth The maximum depth.
1811	*/
1812	static int pgmR3DumpHierarchyGstPaePD(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys, unsigned cMaxDepth)
1813	{
1814	PCX86PDPAE pPD;
1815	PGMPAGEMAPLOCK Lock;
1816	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page directory", (void const **)&pPD, &Lock);
1817	if (RT_FAILURE(rc))
1818	return rc;
1819
1820	Assert(cMaxDepth > 0);
1821	cMaxDepth--;
1822
1823	uint32_t iFirst, iLast;
1824	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PD_PAE_SHIFT, X86_PG_PAE_ENTRIES, &iFirst, &iLast);
1825	for (uint32_t i = iFirst; i <= iLast; i++)
1826	{
1827	X86PDEPAE Pde = pPD->a[i];
1828	if (Pde.n.u1Present)
1829	{
1830	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PD_PAE_SHIFT);
1831	if (Pde.b.u1Size)
1832	{
1833	pState->pHlp->pfnPrintf(pState->pHlp,
1834	pState->fLme /P R S A D G WT CD AT NX 2M a p ? phys/
1835	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 2M %c%c%c %016llx"
1836	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 2M %c%c%c %016llx",
1837	pState->u64Address,
1838	Pde.b.u1Write ? 'W' : 'R',
1839	Pde.b.u1User ? 'U' : 'S',
1840	Pde.b.u1Accessed ? 'A' : '-',
1841	Pde.b.u1Dirty ? 'D' : '-',
1842	Pde.b.u1Global ? 'G' : '-',
1843	Pde.b.u1WriteThru ? "WT" : "--",
1844	Pde.b.u1CacheDisable ? "CD" : "--",
1845	Pde.b.u1PAT ? "AT" : "--",
1846	Pde.b.u1NoExecute ? "NX" : "--",
1847	Pde.u & RT_BIT_64(9) ? '1' : '0',
1848	Pde.u & RT_BIT_64(10) ? '1' : '0',
1849	Pde.u & RT_BIT_64(11) ? '1' : '0',
1850	Pde.u & X86_PDE2M_PAE_PG_MASK);
1851	if (pState->fDumpPageInfo)
1852	pgmR3DumpHierarchyGstPageInfo(pState, Pde.u & X86_PDE2M_PAE_PG_MASK, _2M);
1853	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pde.u);
1854	if ((Pde.u >> 13) & 0xff)
1855	pState->pHlp->pfnPrintf(pState->pHlp, " 20:13=%02llx%s", (Pde.u >> 13) & 0x0ff, pState->fLme ? "" : "!");
1856	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1857
1858	pState->cLeaves++;
1859	}
1860	else
1861	{
1862	pState->pHlp->pfnPrintf(pState->pHlp,
1863	pState->fLme /P R S A D G WT CD AT NX 4M a p ? phys /
1864	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s .. %c%c%c %016llx"
1865	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s .. %c%c%c %016llx",
1866	pState->u64Address,
1867	Pde.n.u1Write ? 'W' : 'R',
1868	Pde.n.u1User ? 'U' : 'S',
1869	Pde.n.u1Accessed ? 'A' : '-',
1870	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
1871	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
1872	Pde.n.u1WriteThru ? "WT" : "--",
1873	Pde.n.u1CacheDisable ? "CD" : "--",
1874	Pde.n.u1NoExecute ? "NX" : "--",
1875	Pde.u & RT_BIT_64(9) ? '1' : '0',
1876	Pde.u & RT_BIT_64(10) ? '1' : '0',
1877	Pde.u & RT_BIT_64(11) ? '1' : '0',
1878	Pde.u & X86_PDE_PAE_PG_MASK);
1879	if (pState->fDumpPageInfo)
1880	pgmR3DumpHierarchyGstPageInfo(pState, Pde.u & X86_PDE_PAE_PG_MASK, _4K);
1881	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pde.u);
1882	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1883
1884	if (cMaxDepth)
1885	{
1886	int rc2 = pgmR3DumpHierarchyGstPaePT(pState, Pde.u & X86_PDE_PAE_PG_MASK);
1887	if (rc2 < rc && RT_SUCCESS(rc))
1888	rc = rc2;
1889	}
1890	else
1891	pState->cLeaves++;
1892	}
1893	}
1894	}
1895
1896	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
1897	return rc;
1898	}
1899
1900
1901	/**
1902	* Dumps a PAE shadow page directory pointer table.
1903	*
1904	* @returns VBox status code (VINF_SUCCESS).
1905	* @param pState The dumper state.
1906	* @param GCPhys The physical address of the table.
1907	* @param cMaxDepth The maximum depth.
1908	*/
1909	static int pgmR3DumpHierarchyGstPaePDPT(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys, unsigned cMaxDepth)
1910	{
1911	/* Fend of addresses that are out of range in PAE mode - simplifies the code below. */
1912	if (!pState->fLme && pState->u64Address >= _4G)
1913	return VINF_SUCCESS;
1914
1915	PCX86PDPT pPDPT;
1916	PGMPAGEMAPLOCK Lock;
1917	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page directory pointer table", (void const **)&pPDPT, &Lock);
1918	if (RT_FAILURE(rc))
1919	return rc;
1920
1921	Assert(cMaxDepth > 0);
1922	cMaxDepth--;
1923
1924	uint32_t iFirst, iLast;
1925	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PDPT_SHIFT,
1926	pState->fLme ? X86_PG_AMD64_PDPE_ENTRIES : X86_PG_PAE_PDPE_ENTRIES,
1927	&iFirst, &iLast);
1928	for (uint32_t i = iFirst; i <= iLast; i++)
1929	{
1930	X86PDPE Pdpe = pPDPT->a[i];
1931	if (Pdpe.n.u1Present)
1932	{
1933	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PDPT_SHIFT);
1934	if (pState->fLme)
1935	{
1936	/** @todo Do 1G pages. */
1937	pState->pHlp->pfnPrintf(pState->pHlp, /P R S A D G WT CD AT NX .. a p ? /
1938	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1939	pState->u64Address,
1940	Pdpe.lm.u1Write ? 'W' : 'R',
1941	Pdpe.lm.u1User ? 'U' : 'S',
1942	Pdpe.lm.u1Accessed ? 'A' : '-',
1943	Pdpe.lm.u3Reserved & 1 ? '?' : '.', /* ignored */
1944	Pdpe.lm.u3Reserved & 4 ? '!' : '.', /* mbz */
1945	Pdpe.lm.u1WriteThru ? "WT" : "--",
1946	Pdpe.lm.u1CacheDisable ? "CD" : "--",
1947	Pdpe.lm.u3Reserved & 2 ? "!" : "..",/* mbz */
1948	Pdpe.lm.u1NoExecute ? "NX" : "--",
1949	Pdpe.u & RT_BIT_64(9) ? '1' : '0',
1950	Pdpe.u & RT_BIT_64(10) ? '1' : '0',
1951	Pdpe.u & RT_BIT_64(11) ? '1' : '0',
1952	Pdpe.u & X86_PDPE_PG_MASK);
1953	if (pState->fDumpPageInfo)
1954	pgmR3DumpHierarchyGstPageInfo(pState, Pdpe.u & X86_PDPE_PG_MASK, _4K);
1955	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pdpe.u);
1956	}
1957	else
1958	{
1959	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX .. a p ? /
1960	"%08llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1961	pState->u64Address,
1962	Pdpe.n.u2Reserved & 1 ? '!' : '.', /* mbz */
1963	Pdpe.n.u2Reserved & 2 ? '!' : '.', /* mbz */
1964	Pdpe.n.u4Reserved & 1 ? '!' : '.', /* mbz */
1965	Pdpe.n.u4Reserved & 2 ? '!' : '.', /* mbz */
1966	Pdpe.n.u4Reserved & 8 ? '!' : '.', /* mbz */
1967	Pdpe.n.u1WriteThru ? "WT" : "--",
1968	Pdpe.n.u1CacheDisable ? "CD" : "--",
1969	Pdpe.n.u4Reserved & 2 ? "!" : "..", /* mbz */
1970	Pdpe.lm.u1NoExecute ? "!!" : "..",/* mbz */
1971	Pdpe.u & RT_BIT_64(9) ? '1' : '0',
1972	Pdpe.u & RT_BIT_64(10) ? '1' : '0',
1973	Pdpe.u & RT_BIT_64(11) ? '1' : '0',
1974	Pdpe.u & X86_PDPE_PG_MASK);
1975	if (pState->fDumpPageInfo)
1976	pgmR3DumpHierarchyGstPageInfo(pState, Pdpe.u & X86_PDPE_PG_MASK, _4K);
1977	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pdpe.u);
1978	}
1979	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1980
1981	if (cMaxDepth)
1982	{
1983	int rc2 = pgmR3DumpHierarchyGstPaePD(pState, Pdpe.u & X86_PDPE_PG_MASK, cMaxDepth);
1984	if (rc2 < rc && RT_SUCCESS(rc))
1985	rc = rc2;
1986	}
1987	else
1988	pState->cLeaves++;
1989	}
1990	}
1991
1992	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
1993	return rc;
1994	}
1995
1996
1997	/**
1998	* Dumps a 32-bit shadow page table.
1999	*
2000	* @returns VBox status code (VINF_SUCCESS).
2001	* @param pVM The VM handle.
2002	* @param GCPhys The physical address of the table.
2003	* @param cMaxDepth The maximum depth.
2004	*/
2005	static int pgmR3DumpHierarchyGstPaePML4(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS GCPhys, unsigned cMaxDepth)
2006	{
2007	PCX86PML4 pPML4;
2008	PGMPAGEMAPLOCK Lock;
2009	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page map level 4", (void const **)&pPML4, &Lock);
2010	if (RT_FAILURE(rc))
2011	return rc;
2012
2013	Assert(cMaxDepth);
2014	cMaxDepth--;
2015
2016	/*
2017	* This is a bit tricky as we're working on unsigned addresses while the
2018	* AMD64 spec uses signed tricks.
2019	*/
2020	uint32_t iFirst = (pState->u64FirstAddress >> X86_PML4_SHIFT) & X86_PML4_MASK;
2021	uint32_t iLast = (pState->u64LastAddress >> X86_PML4_SHIFT) & X86_PML4_MASK;
2022	if ( pState->u64LastAddress <= UINT64_C(0x00007fffffffffff)
2023	\|\| pState->u64FirstAddress >= UINT64_C(0xffff800000000000))
2024	{ /* Simple, nothing to adjust */ }
2025	else if (pState->u64FirstAddress <= UINT64_C(0x00007fffffffffff))
2026	iLast = X86_PG_AMD64_ENTRIES / 2 - 1;
2027	else if (pState->u64LastAddress >= UINT64_C(0xffff800000000000))
2028	iFirst = X86_PG_AMD64_ENTRIES / 2;
2029	else
2030	iFirst = X86_PG_AMD64_ENTRIES; /* neither address is canonical */
2031
2032	for (uint32_t i = iFirst; i <= iLast; i++)
2033	{
2034	X86PML4E Pml4e = pPML4->a[i];
2035	if (Pml4e.n.u1Present)
2036	{
2037	pState->u64Address = ((uint64_t)i << X86_PML4_SHIFT)
2038	\| (i >= RT_ELEMENTS(pPML4->a) / 2 ? UINT64_C(0xffff000000000000) : 0);
2039	pState->pHlp->pfnPrintf(pState->pHlp, /P R S A D G WT CD AT NX 4M a p ? /
2040	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
2041	pState->u64Address,
2042	Pml4e.n.u1Write ? 'W' : 'R',
2043	Pml4e.n.u1User ? 'U' : 'S',
2044	Pml4e.n.u1Accessed ? 'A' : '-',
2045	Pml4e.n.u3Reserved & 1 ? '?' : '.', /* ignored */
2046	Pml4e.n.u3Reserved & 4 ? '!' : '.', /* mbz */
2047	Pml4e.n.u1WriteThru ? "WT" : "--",
2048	Pml4e.n.u1CacheDisable ? "CD" : "--",
2049	Pml4e.n.u3Reserved & 2 ? "!" : "..",/* mbz */
2050	Pml4e.n.u1NoExecute ? "NX" : "--",
2051	Pml4e.u & RT_BIT_64(9) ? '1' : '0',
2052	Pml4e.u & RT_BIT_64(10) ? '1' : '0',
2053	Pml4e.u & RT_BIT_64(11) ? '1' : '0',
2054	Pml4e.u & X86_PML4E_PG_MASK);
2055	if (pState->fDumpPageInfo)
2056	pgmR3DumpHierarchyGstPageInfo(pState, Pml4e.u & X86_PML4E_PG_MASK, _4K);
2057	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pml4e.u);
2058	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
2059
2060	if (cMaxDepth)
2061	{
2062	int rc2 = pgmR3DumpHierarchyGstPaePDPT(pState, Pml4e.u & X86_PML4E_PG_MASK, cMaxDepth);
2063	if (rc2 < rc && RT_SUCCESS(rc))
2064	rc = rc2;
2065	}
2066	else
2067	pState->cLeaves++;
2068	}
2069	}
2070
2071	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
2072	return rc;
2073	}
2074
2075
2076	/**
2077	* Dumps a 32-bit shadow page table.
2078	*
2079	* @returns VBox status code (VINF_SUCCESS).
2080	* @param pState The dumper state.
2081	* @param GCPhys The physical address of the table.
2082	*/
2083	static int pgmR3DumpHierarchyGst32BitPT(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS GCPhys)
2084	{
2085	PCX86PT pPT;
2086	PGMPAGEMAPLOCK Lock;
2087	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page table", (void const **)&pPT, &Lock);
2088	if (RT_FAILURE(rc))
2089	return rc;
2090
2091	uint32_t iFirst, iLast;
2092	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PT_SHIFT, X86_PG_ENTRIES, &iFirst, &iLast);
2093	for (uint32_t i = iFirst; i <= iLast; i++)
2094	{
2095	X86PTE Pte = pPT->a[i];
2096	if (Pte.n.u1Present)
2097	{
2098	pState->u64Address = u64BaseAddress + (i << X86_PT_SHIFT);
2099	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d /
2100	"%08llx 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x",
2101	pState->u64Address,
2102	Pte.n.u1Write ? 'W' : 'R',
2103	Pte.n.u1User ? 'U' : 'S',
2104	Pte.n.u1Accessed ? 'A' : '-',
2105	Pte.n.u1Dirty ? 'D' : '-',
2106	Pte.n.u1Global ? 'G' : '-',
2107	Pte.n.u1WriteThru ? "WT" : "--",
2108	Pte.n.u1CacheDisable ? "CD" : "--",
2109	Pte.n.u1PAT ? "AT" : "--",
2110	Pte.u & RT_BIT_32(9) ? '1' : '0',
2111	Pte.u & RT_BIT_32(10) ? '1' : '0',
2112	Pte.u & RT_BIT_32(11) ? '1' : '0',
2113	Pte.u & X86_PDE_PG_MASK);
2114	if (pState->fDumpPageInfo)
2115	pgmR3DumpHierarchyGstPageInfo(pState, Pte.u & X86_PDE_PG_MASK, _4K);
2116	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
2117	}
2118	}
2119
2120	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
2121	return VINF_SUCCESS;
2122	}
2123
2124
2125	/**
2126	* Dumps a 32-bit shadow page directory and page tables.
2127	*
2128	* @returns VBox status code (VINF_SUCCESS).
2129	* @param pState The dumper state.
2130	* @param GCPhys The physical address of the table.
2131	* @param cMaxDepth The maximum depth.
2132	*/
2133	static int pgmR3DumpHierarchyGst32BitPD(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS GCPhys, unsigned cMaxDepth)
2134	{
2135	if (pState->u64Address >= _4G)
2136	return VINF_SUCCESS;
2137
2138	PCX86PD pPD;
2139	PGMPAGEMAPLOCK Lock;
2140	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page directory", (void const **)&pPD, &Lock);
2141	if (RT_FAILURE(rc))
2142	return rc;
2143
2144	Assert(cMaxDepth > 0);
2145	cMaxDepth--;
2146
2147	uint32_t iFirst, iLast;
2148	pgmR3DumpHierarchyCalcRange(pState, X86_PD_SHIFT, X86_PG_ENTRIES, &iFirst, &iLast);
2149	for (uint32_t i = iFirst; i <= iLast; i++)
2150	{
2151	X86PDE Pde = pPD->a[i];
2152	if (Pde.n.u1Present)
2153	{
2154	pState->u64Address = (uint32_t)i << X86_PD_SHIFT;
2155	if (Pde.b.u1Size && pState->fPse)
2156	{
2157	uint64_t u64Phys = ((uint64_t)(Pde.u & X86_PDE4M_PG_HIGH_MASK) << X86_PDE4M_PG_HIGH_SHIFT)
2158	\| (Pde.u & X86_PDE4M_PG_MASK);
2159	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d phys /
2160	"%08llx 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08llx",
2161	pState->u64Address,
2162	Pde.b.u1Write ? 'W' : 'R',
2163	Pde.b.u1User ? 'U' : 'S',
2164	Pde.b.u1Accessed ? 'A' : '-',
2165	Pde.b.u1Dirty ? 'D' : '-',
2166	Pde.b.u1Global ? 'G' : '-',
2167	Pde.b.u1WriteThru ? "WT" : "--",
2168	Pde.b.u1CacheDisable ? "CD" : "--",
2169	Pde.b.u1PAT ? "AT" : "--",
2170	Pde.u & RT_BIT_32(9) ? '1' : '0',
2171	Pde.u & RT_BIT_32(10) ? '1' : '0',
2172	Pde.u & RT_BIT_32(11) ? '1' : '0',
2173	u64Phys);
2174	if (pState->fDumpPageInfo)
2175	pgmR3DumpHierarchyGstPageInfo(pState, u64Phys, _4M);
2176	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
2177	pState->cLeaves++;
2178	}
2179	else
2180	{
2181	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d phys /
2182	"%08llx 0 \| P %c %c %c %c %c %s %s .. .. .. %c%c%c %08x",
2183	pState->u64Address,
2184	Pde.n.u1Write ? 'W' : 'R',
2185	Pde.n.u1User ? 'U' : 'S',
2186	Pde.n.u1Accessed ? 'A' : '-',
2187	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
2188	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
2189	Pde.n.u1WriteThru ? "WT" : "--",
2190	Pde.n.u1CacheDisable ? "CD" : "--",
2191	Pde.u & RT_BIT_32(9) ? '1' : '0',
2192	Pde.u & RT_BIT_32(10) ? '1' : '0',
2193	Pde.u & RT_BIT_32(11) ? '1' : '0',
2194	Pde.u & X86_PDE_PG_MASK);
2195	if (pState->fDumpPageInfo)
2196	pgmR3DumpHierarchyGstPageInfo(pState, Pde.u & X86_PDE_PG_MASK, _4K);
2197	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
2198
2199	if (cMaxDepth)
2200	{
2201	int rc2 = pgmR3DumpHierarchyGst32BitPT(pState, Pde.u & X86_PDE_PG_MASK);
2202	if (rc2 < rc && RT_SUCCESS(rc))
2203	rc = rc2;
2204	}
2205	else
2206	pState->cLeaves++;
2207	}
2208	}
2209	}
2210
2211	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
2212	return rc;
2213	}
2214
2215
2216	/**
2217	* Internal worker that initiates the actual dump.
2218	*
2219	* @returns VBox status code.
2220	* @param pState The dumper state.
2221	* @param cr3 The CR3 value.
2222	* @param cMaxDepth The max depth.
2223	*/
2224	static int pgmR3DumpHierarchyGstDoIt(PPGMR3DUMPHIERARCHYSTATE pState, uint64_t cr3, unsigned cMaxDepth)
2225	{
2226	int rc;
2227	unsigned const cch = pState->cchAddress;
2228	uint64_t const cr3Mask = pState->fEpt ? X86_CR3_AMD64_PAGE_MASK
2229	: pState->fLme ? X86_CR3_AMD64_PAGE_MASK
2230	: pState->fPae ? X86_CR3_PAE_PAGE_MASK
2231	: X86_CR3_PAGE_MASK;
2232	if (pState->fPrintCr3)
2233	{
2234	const char * const pszMode = pState->fEpt ? "Extended Page Tables"
2235	: pState->fLme ? "Long Mode"
2236	: pState->fPae ? "PAE Mode"
2237	: pState->fPse ? "32-bit w/ PSE"
2238	: "32-bit";
2239	pState->pHlp->pfnPrintf(pState->pHlp, "cr3=%0*llx", cch, cr3);
2240	if (pState->fDumpPageInfo)
2241	pgmR3DumpHierarchyGstPageInfo(pState, cr3 & X86_CR3_AMD64_PAGE_MASK, _4K);
2242	pState->pHlp->pfnPrintf(pState->pHlp, " %s%s%s\n",
2243	pszMode,
2244	pState->fNp ? " + Nested Paging" : "",
2245	pState->fNxe ? " + NX" : "");
2246	}
2247
2248
2249	if (pState->fEpt)
2250	{
2251	if (pState->fPrintHeader)
2252	pState->pHlp->pfnPrintf(pState->pHlp,
2253	"%-*s R - Readable\n"
2254	"%-*s \| W - Writeable\n"
2255	"%-*s \| \| X - Executable\n"
2256	"%-*s \| \| \| EMT - EPT memory type\n"
2257	"%-*s \| \| \| \| PAT - Ignored PAT?\n"
2258	"%-*s \| \| \| \| \| AVL1 - 4 available bits\n"
2259	"%-*s \| \| \| \| \| \| AVL2 - 12 available bits\n"
2260	"%-*s Level \| \| \| \| \| \| \| page \n"
2261	/* xxxx n **** R W X EMT PAT AVL1 AVL2 xxxxxxxxxxxxx
2262	R W X 7 0 f fff 0123456701234567 */
2263	,
2264	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
2265
2266	pState->pHlp->pfnPrintf(pState->pHlp, "EPT dumping is not yet implemented, sorry.\n");
2267	/** @todo implemented EPT dumping. */
2268	rc = VERR_NOT_IMPLEMENTED;
2269	}
2270	else
2271	{
2272	if (pState->fPrintHeader)
2273	pState->pHlp->pfnPrintf(pState->pHlp,
2274	"%-*s P - Present\n"
2275	"%-*s \| R/W - Read (0) / Write (1)\n"
2276	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
2277	"%-*s \| \| \| A - Accessed\n"
2278	"%-*s \| \| \| \| D - Dirty\n"
2279	"%-*s \| \| \| \| \| G - Global\n"
2280	"%-*s \| \| \| \| \| \| WT - Write thru\n"
2281	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
2282	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
2283	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
2284	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
2285	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - 3 available bits.\n"
2286	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
2287	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
2288	- W U - - - -- -- -- -- -- 010 */
2289	,
2290	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
2291	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
2292	if (pState->fLme)
2293	rc = pgmR3DumpHierarchyGstPaePML4(pState, cr3 & cr3Mask, cMaxDepth);
2294	else if (pState->fPae)
2295	rc = pgmR3DumpHierarchyGstPaePDPT(pState, cr3 & cr3Mask, cMaxDepth);
2296	else
2297	rc = pgmR3DumpHierarchyGst32BitPD(pState, cr3 & cr3Mask, cMaxDepth);
2298	}
2299
2300	if (!pState->cLeaves)
2301	pState->pHlp->pfnPrintf(pState->pHlp, "not present\n");
2302	return rc;
2303	}
2304
2305
2306	/**
2307	* dbgfR3PagingDumpEx worker.
2308	*
2309	* @returns VBox status code.
2310	* @param pVM The VM handle.
2311	* @param cr3 The CR3 register value.
2312	* @param fFlags The flags, DBGFPGDMP_FLAGS_XXX.
2313	* @param FirstAddr The start address.
2314	* @param LastAddr The address to stop after.
2315	* @param cMaxDepth The max depth.
2316	* @param pHlp The output callbacks. Defaults to log if NULL.
2317	*
2318	* @internal
2319	*/
2320	VMMR3_INT_DECL(int) PGMR3DumpHierarchyGst(PVM pVM, uint64_t cr3, uint32_t fFlags, RTGCPTR FirstAddr, RTGCPTR LastAddr,
2321	uint32_t cMaxDepth, PCDBGFINFOHLP pHlp)
2322	{
2323	/* Minimal validation as we're only supposed to service DBGF. */
2324	AssertReturn(~(fFlags & ~DBGFPGDMP_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
2325	AssertReturn(!(fFlags & (DBGFPGDMP_FLAGS_CURRENT_MODE \| DBGFPGDMP_FLAGS_CURRENT_CR3)), VERR_INVALID_PARAMETER);
2326	AssertReturn(fFlags & DBGFPGDMP_FLAGS_GUEST, VERR_INVALID_PARAMETER);
2327
2328	PGMR3DUMPHIERARCHYSTATE State;
2329	pgmR3DumpHierarchyInitState(&State, pVM, fFlags, FirstAddr, LastAddr, pHlp);
2330	return pgmR3DumpHierarchyGstDoIt(&State, cr3, cMaxDepth);
2331	}
2332

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source: vbox/trunk/src/VBox/VMM/VMMR3/PGMDbg.cpp@ 41669

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