PGMDbg.cpp@ 34244

Last change on this file since 34244 was 33540, checked in by vboxsync, 14 years ago
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1	/* $Id: PGMDbg.cpp 33540 2010-10-28 09:27:05Z 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/pgm.h>
23	#include <VBox/stam.h>
24	#include "PGMInternal.h"
25	#include <VBox/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	*pGCPhys = NIL_RTGCPHYS;
112	return VERR_NOT_IMPLEMENTED;
113	}
114
115
116	/**
117	* Converts a R3 pointer to a HC physical address.
118	*
119	* Only for the debugger.
120	*
121	* @returns VBox status code.
122	* @retval VINF_SUCCESS on success, *pHCPhys is set.
123	* @retval VERR_PGM_PHYS_PAGE_RESERVED it it's a valid GC physical page but has no physical backing.
124	* @retval VERR_INVALID_POINTER if the pointer is not within the GC physical memory.
125	*
126	* @param pVM The VM handle.
127	* @param R3Ptr The R3 pointer to convert.
128	* @param pHCPhys Where to store the HC physical address on success.
129	*/
130	VMMR3DECL(int) PGMR3DbgR3Ptr2HCPhys(PVM pVM, RTR3PTR R3Ptr, PRTHCPHYS pHCPhys)
131	{
132	*pHCPhys = NIL_RTHCPHYS;
133	return VERR_NOT_IMPLEMENTED;
134	}
135
136
137	/**
138	* Converts a HC physical address to a GC physical address.
139	*
140	* Only for the debugger.
141	*
142	* @returns VBox status code
143	* @retval VINF_SUCCESS on success, *pGCPhys is set.
144	* @retval VERR_INVALID_POINTER if the HC physical address is not within the GC physical memory.
145	*
146	* @param pVM The VM handle.
147	* @param HCPhys The HC physical address to convert.
148	* @param pGCPhys Where to store the GC physical address on success.
149	*/
150	VMMR3DECL(int) PGMR3DbgHCPhys2GCPhys(PVM pVM, RTHCPHYS HCPhys, PRTGCPHYS pGCPhys)
151	{
152	/*
153	* Validate and adjust the input a bit.
154	*/
155	if (HCPhys == NIL_RTHCPHYS)
156	return VERR_INVALID_POINTER;
157	unsigned off = HCPhys & PAGE_OFFSET_MASK;
158	HCPhys &= X86_PTE_PAE_PG_MASK;
159	if (HCPhys == 0)
160	return VERR_INVALID_POINTER;
161
162	for (PPGMRAMRANGE pRam = pVM->pgm.s.CTX_SUFF(pRamRanges);
163	pRam;
164	pRam = pRam->CTX_SUFF(pNext))
165	{
166	uint32_t iPage = pRam->cb >> PAGE_SHIFT;
167	while (iPage-- > 0)
168	if (PGM_PAGE_GET_HCPHYS(&pRam->aPages[iPage]) == HCPhys)
169	{
170	*pGCPhys = pRam->GCPhys + (iPage << PAGE_SHIFT) + off;
171	return VINF_SUCCESS;
172	}
173	}
174	return VERR_INVALID_POINTER;
175	}
176
177
178	/**
179	* Read physical memory API for the debugger, similar to
180	* PGMPhysSimpleReadGCPhys.
181	*
182	* @returns VBox status code.
183	*
184	* @param pVM The VM handle.
185	* @param pvDst Where to store what's read.
186	* @param GCPhysDst Where to start reading from.
187	* @param cb The number of bytes to attempt reading.
188	* @param fFlags Flags, MBZ.
189	* @param pcbRead For store the actual number of bytes read, pass NULL if
190	* partial reads are unwanted.
191	* @todo Unused?
192	*/
193	VMMR3DECL(int) PGMR3DbgReadGCPhys(PVM pVM, void pvDst, RTGCPHYS GCPhysSrc, size_t cb, uint32_t fFlags, size_t pcbRead)
194	{
195	/* validate */
196	AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
197	AssertReturn(pVM, VERR_INVALID_PARAMETER);
198
199	/* try simple first. */
200	int rc = PGMPhysSimpleReadGCPhys(pVM, pvDst, GCPhysSrc, cb);
201	if (RT_SUCCESS(rc) \|\| !pcbRead)
202	return rc;
203
204	/* partial read that failed, chop it up in pages. */
205	*pcbRead = 0;
206	size_t const cbReq = cb;
207	rc = VINF_SUCCESS;
208	while (cb > 0)
209	{
210	size_t cbChunk = PAGE_SIZE;
211	cbChunk -= GCPhysSrc & PAGE_OFFSET_MASK;
212	if (cbChunk > cb)
213	cbChunk = cb;
214
215	rc = PGMPhysSimpleReadGCPhys(pVM, pvDst, GCPhysSrc, cbChunk);
216
217	/* advance */
218	if (RT_FAILURE(rc))
219	break;
220	*pcbRead += cbChunk;
221	cb -= cbChunk;
222	GCPhysSrc += cbChunk;
223	pvDst = (uint8_t *)pvDst + cbChunk;
224	}
225
226	return *pcbRead && RT_FAILURE(rc) ? -rc : rc;
227	}
228
229
230	/**
231	* Write physical memory API for the debugger, similar to
232	* PGMPhysSimpleWriteGCPhys.
233	*
234	* @returns VBox status code.
235	*
236	* @param pVM The VM handle.
237	* @param GCPhysDst Where to start writing.
238	* @param pvSrc What to write.
239	* @param cb The number of bytes to attempt writing.
240	* @param fFlags Flags, MBZ.
241	* @param pcbWritten For store the actual number of bytes written, pass NULL
242	* if partial writes are unwanted.
243	* @todo Unused?
244	*/
245	VMMR3DECL(int) PGMR3DbgWriteGCPhys(PVM pVM, RTGCPHYS GCPhysDst, const void pvSrc, size_t cb, uint32_t fFlags, size_t pcbWritten)
246	{
247	/* validate */
248	AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
249	AssertReturn(pVM, VERR_INVALID_PARAMETER);
250
251	/* try simple first. */
252	int rc = PGMPhysSimpleWriteGCPhys(pVM, GCPhysDst, pvSrc, cb);
253	if (RT_SUCCESS(rc) \|\| !pcbWritten)
254	return rc;
255
256	/* partial write that failed, chop it up in pages. */
257	*pcbWritten = 0;
258	rc = VINF_SUCCESS;
259	while (cb > 0)
260	{
261	size_t cbChunk = PAGE_SIZE;
262	cbChunk -= GCPhysDst & PAGE_OFFSET_MASK;
263	if (cbChunk > cb)
264	cbChunk = cb;
265
266	rc = PGMPhysSimpleWriteGCPhys(pVM, GCPhysDst, pvSrc, cbChunk);
267
268	/* advance */
269	if (RT_FAILURE(rc))
270	break;
271	*pcbWritten += cbChunk;
272	cb -= cbChunk;
273	GCPhysDst += cbChunk;
274	pvSrc = (uint8_t const *)pvSrc + cbChunk;
275	}
276
277	return *pcbWritten && RT_FAILURE(rc) ? -rc : rc;
278
279	}
280
281
282	/**
283	* Read virtual memory API for the debugger, similar to PGMPhysSimpleReadGCPtr.
284	*
285	* @returns VBox status code.
286	*
287	* @param pVM The VM handle.
288	* @param pvDst Where to store what's read.
289	* @param GCPtrDst Where to start reading from.
290	* @param cb The number of bytes to attempt reading.
291	* @param fFlags Flags, MBZ.
292	* @param pcbRead For store the actual number of bytes read, pass NULL if
293	* partial reads are unwanted.
294	* @todo Unused?
295	*/
296	VMMR3DECL(int) PGMR3DbgReadGCPtr(PVM pVM, void pvDst, RTGCPTR GCPtrSrc, size_t cb, uint32_t fFlags, size_t pcbRead)
297	{
298	/* validate */
299	AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
300	AssertReturn(pVM, VERR_INVALID_PARAMETER);
301
302	/* @todo SMP support! */
303	PVMCPU pVCpu = &pVM->aCpus[0];
304
305	/** @todo deal with HMA */
306	/* try simple first. */
307	int rc = PGMPhysSimpleReadGCPtr(pVCpu, pvDst, GCPtrSrc, cb);
308	if (RT_SUCCESS(rc) \|\| !pcbRead)
309	return rc;
310
311	/* partial read that failed, chop it up in pages. */
312	*pcbRead = 0;
313	rc = VINF_SUCCESS;
314	while (cb > 0)
315	{
316	size_t cbChunk = PAGE_SIZE;
317	cbChunk -= GCPtrSrc & PAGE_OFFSET_MASK;
318	if (cbChunk > cb)
319	cbChunk = cb;
320
321	rc = PGMPhysSimpleReadGCPtr(pVCpu, pvDst, GCPtrSrc, cbChunk);
322
323	/* advance */
324	if (RT_FAILURE(rc))
325	break;
326	*pcbRead += cbChunk;
327	cb -= cbChunk;
328	GCPtrSrc += cbChunk;
329	pvDst = (uint8_t *)pvDst + cbChunk;
330	}
331
332	return *pcbRead && RT_FAILURE(rc) ? -rc : rc;
333
334	}
335
336
337	/**
338	* Write virtual memory API for the debugger, similar to
339	* PGMPhysSimpleWriteGCPtr.
340	*
341	* @returns VBox status code.
342	*
343	* @param pVM The VM handle.
344	* @param GCPtrDst Where to start writing.
345	* @param pvSrc What to write.
346	* @param cb The number of bytes to attempt writing.
347	* @param fFlags Flags, MBZ.
348	* @param pcbWritten For store the actual number of bytes written, pass NULL
349	* if partial writes are unwanted.
350	* @todo Unused?
351	*/
352	VMMR3DECL(int) PGMR3DbgWriteGCPtr(PVM pVM, RTGCPTR GCPtrDst, void const pvSrc, size_t cb, uint32_t fFlags, size_t pcbWritten)
353	{
354	/* validate */
355	AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
356	AssertReturn(pVM, VERR_INVALID_PARAMETER);
357
358	/* @todo SMP support! */
359	PVMCPU pVCpu = &pVM->aCpus[0];
360
361	/** @todo deal with HMA */
362	/* try simple first. */
363	int rc = PGMPhysSimpleWriteGCPtr(pVCpu, GCPtrDst, pvSrc, cb);
364	if (RT_SUCCESS(rc) \|\| !pcbWritten)
365	return rc;
366
367	/* partial write that failed, chop it up in pages. */
368	*pcbWritten = 0;
369	rc = VINF_SUCCESS;
370	while (cb > 0)
371	{
372	size_t cbChunk = PAGE_SIZE;
373	cbChunk -= GCPtrDst & PAGE_OFFSET_MASK;
374	if (cbChunk > cb)
375	cbChunk = cb;
376
377	rc = PGMPhysSimpleWriteGCPtr(pVCpu, GCPtrDst, pvSrc, cbChunk);
378
379	/* advance */
380	if (RT_FAILURE(rc))
381	break;
382	*pcbWritten += cbChunk;
383	cb -= cbChunk;
384	GCPtrDst += cbChunk;
385	pvSrc = (uint8_t const *)pvSrc + cbChunk;
386	}
387
388	return *pcbWritten && RT_FAILURE(rc) ? -rc : rc;
389
390	}
391
392
393	/**
394	* memchr() with alignment considerations.
395	*
396	* @returns Pointer to matching byte, NULL if none found.
397	* @param pb Where to search. Aligned.
398	* @param b What to search for.
399	* @param cb How much to search .
400	* @param uAlign The alignment restriction of the result.
401	*/
402	static const uint8_t pgmR3DbgAlignedMemChr(const uint8_t pb, uint8_t b, size_t cb, uint32_t uAlign)
403	{
404	const uint8_t *pbRet;
405	if (uAlign <= 32)
406	{
407	pbRet = (const uint8_t *)memchr(pb, b, cb);
408	if ((uintptr_t)pbRet & (uAlign - 1))
409	{
410	do
411	{
412	pbRet++;
413	size_t cbLeft = cb - (pbRet - pb);
414	if (!cbLeft)
415	{
416	pbRet = NULL;
417	break;
418	}
419	pbRet = (const uint8_t *)memchr(pbRet, b, cbLeft);
420	} while ((uintptr_t)pbRet & (uAlign - 1));
421	}
422	}
423	else
424	{
425	pbRet = NULL;
426	if (cb)
427	{
428	for (;;)
429	{
430	if (*pb == b)
431	{
432	pbRet = pb;
433	break;
434	}
435	if (cb <= uAlign)
436	break;
437	cb -= uAlign;
438	pb += uAlign;
439	}
440	}
441	}
442	return pbRet;
443	}
444
445
446	/**
447	* Scans a page for a byte string, keeping track of potential
448	* cross page matches.
449	*
450	* @returns true and *poff on match.
451	* false on mismatch.
452	* @param pbPage Pointer to the current page.
453	* @param poff Input: The offset into the page (aligned).
454	* Output: The page offset of the match on success.
455	* @param cb The number of bytes to search, starting of *poff.
456	* @param uAlign The needle alignment. This is of course less than a page.
457	* @param pabNeedle The byte string to search for.
458	* @param cbNeedle The length of the byte string.
459	* @param pabPrev The buffer that keeps track of a partial match that we
460	* bring over from the previous page. This buffer must be
461	* at least cbNeedle - 1 big.
462	* @param pcbPrev Input: The number of partial matching bytes from the previous page.
463	* Output: The number of partial matching bytes from this page.
464	* Initialize to 0 before the first call to this function.
465	*/
466	static bool pgmR3DbgScanPage(const uint8_t pbPage, int32_t poff, uint32_t cb, uint32_t uAlign,
467	const uint8_t *pabNeedle, size_t cbNeedle,
468	uint8_t pabPrev, size_t pcbPrev)
469	{
470	/*
471	* Try complete any partial match from the previous page.
472	*/
473	if (*pcbPrev > 0)
474	{
475	size_t cbPrev = *pcbPrev;
476	Assert(!*poff);
477	Assert(cbPrev < cbNeedle);
478	if (!memcmp(pbPage, pabNeedle + cbPrev, cbNeedle - cbPrev))
479	{
480	if (cbNeedle - cbPrev > cb)
481	return false;
482	*poff = -(int32_t)cbPrev;
483	return true;
484	}
485
486	/* check out the remainder of the previous page. */
487	const uint8_t *pb = pabPrev;
488	for (;;)
489	{
490	if (cbPrev <= uAlign)
491	break;
492	cbPrev -= uAlign;
493	pb = pgmR3DbgAlignedMemChr(pb + uAlign, *pabNeedle, cbPrev, uAlign);
494	if (!pb)
495	break;
496	cbPrev = *pcbPrev - (pb - pabPrev);
497	if ( !memcmp(pb + 1, &pabNeedle[1], cbPrev - 1)
498	&& !memcmp(pbPage, pabNeedle + cbPrev, cbNeedle - cbPrev))
499	{
500	if (cbNeedle - cbPrev > cb)
501	return false;
502	*poff = -(int32_t)cbPrev;
503	return true;
504	}
505	}
506
507	*pcbPrev = 0;
508	}
509
510	/*
511	* Match the body of the page.
512	*/
513	const uint8_t pb = pbPage + poff;
514	const uint8_t *pbEnd = pb + cb;
515	for (;;)
516	{
517	pb = pgmR3DbgAlignedMemChr(pb, *pabNeedle, cb, uAlign);
518	if (!pb)
519	break;
520	cb = pbEnd - pb;
521	if (cb >= cbNeedle)
522	{
523	/* match? */
524	if (!memcmp(pb + 1, &pabNeedle[1], cbNeedle - 1))
525	{
526	*poff = pb - pbPage;
527	return true;
528	}
529	}
530	else
531	{
532	/* partial match at the end of the page? */
533	if (!memcmp(pb + 1, &pabNeedle[1], cb - 1))
534	{
535	/* We're copying one byte more that we really need here, but wtf. */
536	memcpy(pabPrev, pb, cb);
537	*pcbPrev = cb;
538	return false;
539	}
540	}
541
542	/* no match, skip ahead. */
543	if (cb <= uAlign)
544	break;
545	pb += uAlign;
546	cb -= uAlign;
547	}
548
549	return false;
550	}
551
552
553	/**
554	* Scans guest physical memory for a byte string.
555	*
556	* @returns VBox status codes:
557	* @retval VINF_SUCCESS and *pGCPtrHit on success.
558	* @retval VERR_DBGF_MEM_NOT_FOUND if not found.
559	* @retval VERR_INVALID_POINTER if any of the pointer arguments are invalid.
560	* @retval VERR_INVALID_ARGUMENT if any other arguments are invalid.
561	*
562	* @param pVM Pointer to the shared VM structure.
563	* @param GCPhys Where to start searching.
564	* @param cbRange The number of bytes to search.
565	* @param GCPhysAlign The alignment of the needle. Must be a power of two
566	* and less or equal to 4GB.
567	* @param pabNeedle The byte string to search for.
568	* @param cbNeedle The length of the byte string. Max 256 bytes.
569	* @param pGCPhysHit Where to store the address of the first occurrence on success.
570	*/
571	VMMR3DECL(int) PGMR3DbgScanPhysical(PVM pVM, RTGCPHYS GCPhys, RTGCPHYS cbRange, RTGCPHYS GCPhysAlign,
572	const uint8_t *pabNeedle, size_t cbNeedle, PRTGCPHYS pGCPhysHit)
573	{
574	/*
575	* Validate and adjust the input a bit.
576	*/
577	if (!VALID_PTR(pGCPhysHit))
578	return VERR_INVALID_POINTER;
579	*pGCPhysHit = NIL_RTGCPHYS;
580
581	if ( !VALID_PTR(pabNeedle)
582	\|\| GCPhys == NIL_RTGCPHYS)
583	return VERR_INVALID_POINTER;
584	if (!cbNeedle)
585	return VERR_INVALID_PARAMETER;
586	if (cbNeedle > MAX_NEEDLE_SIZE)
587	return VERR_INVALID_PARAMETER;
588
589	if (!cbRange)
590	return VERR_DBGF_MEM_NOT_FOUND;
591	if (GCPhys + cbNeedle - 1 < GCPhys)
592	return VERR_DBGF_MEM_NOT_FOUND;
593
594	if (!GCPhysAlign)
595	return VERR_INVALID_PARAMETER;
596	if (GCPhysAlign > UINT32_MAX)
597	return VERR_NOT_POWER_OF_TWO;
598	if (GCPhysAlign & (GCPhysAlign - 1))
599	return VERR_INVALID_PARAMETER;
600
601	if (GCPhys & (GCPhysAlign - 1))
602	{
603	RTGCPHYS Adj = GCPhysAlign - (GCPhys & (GCPhysAlign - 1));
604	if ( cbRange <= Adj
605	\|\| GCPhys + Adj < GCPhys)
606	return VERR_DBGF_MEM_NOT_FOUND;
607	GCPhys += Adj;
608	cbRange -= Adj;
609	}
610
611	const bool fAllZero = ASMMemIsAll8(pabNeedle, cbNeedle, 0) == NULL;
612	const uint32_t cIncPages = GCPhysAlign <= PAGE_SIZE
613	? 1
614	: GCPhysAlign >> PAGE_SHIFT;
615	const RTGCPHYS GCPhysLast = GCPhys + cbRange - 1 >= GCPhys
616	? GCPhys + cbRange - 1
617	: ~(RTGCPHYS)0;
618
619	/*
620	* Search the memory - ignore MMIO and zero pages, also don't
621	* bother to match across ranges.
622	*/
623	pgmLock(pVM);
624	for (PPGMRAMRANGE pRam = pVM->pgm.s.CTX_SUFF(pRamRanges);
625	pRam;
626	pRam = pRam->CTX_SUFF(pNext))
627	{
628	/*
629	* If the search range starts prior to the current ram range record,
630	* adjust the search range and possibly conclude the search.
631	*/
632	RTGCPHYS off;
633	if (GCPhys < pRam->GCPhys)
634	{
635	if (GCPhysLast < pRam->GCPhys)
636	break;
637	GCPhys = pRam->GCPhys;
638	off = 0;
639	}
640	else
641	off = GCPhys - pRam->GCPhys;
642	if (off < pRam->cb)
643	{
644	/*
645	* Iterate the relevant pages.
646	*/
647	uint8_t abPrev[MAX_NEEDLE_SIZE];
648	size_t cbPrev = 0;
649	const uint32_t cPages = pRam->cb >> PAGE_SHIFT;
650	uint32_t iPage = off >> PAGE_SHIFT;
651	uint32_t offPage = GCPhys & PAGE_OFFSET_MASK;
652	GCPhys &= ~(RTGCPHYS)PAGE_OFFSET_MASK;
653	for (;; offPage = 0)
654	{
655	PPGMPAGE pPage = &pRam->aPages[iPage];
656	if ( ( !PGM_PAGE_IS_ZERO(pPage)
657	\|\| fAllZero)
658	&& !PGM_PAGE_IS_BALLOONED(pPage)
659	&& !PGM_PAGE_IS_MMIO(pPage))
660	{
661	void const *pvPage;
662	PGMPAGEMAPLOCK Lock;
663	int rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, &pvPage, &Lock);
664	if (RT_SUCCESS(rc))
665	{
666	int32_t offHit = offPage;
667	bool fRc;
668	if (GCPhysAlign < PAGE_SIZE)
669	{
670	uint32_t cbSearch = (GCPhys ^ GCPhysLast) & ~(RTGCPHYS)PAGE_OFFSET_MASK
671	? PAGE_SIZE - (uint32_t)offPage
672	: (GCPhysLast & PAGE_OFFSET_MASK) + 1 - (uint32_t)offPage;
673	fRc = pgmR3DbgScanPage((uint8_t const *)pvPage, &offHit, cbSearch, (uint32_t)GCPhysAlign,
674	pabNeedle, cbNeedle, &abPrev[0], &cbPrev);
675	}
676	else
677	fRc = memcmp(pvPage, pabNeedle, cbNeedle) == 0
678	&& (GCPhysLast - GCPhys) >= cbNeedle;
679	PGMPhysReleasePageMappingLock(pVM, &Lock);
680	if (fRc)
681	{
682	*pGCPhysHit = GCPhys + offHit;
683	pgmUnlock(pVM);
684	return VINF_SUCCESS;
685	}
686	}
687	else
688	cbPrev = 0; /* ignore error. */
689	}
690	else
691	cbPrev = 0;
692
693	/* advance to the next page. */
694	GCPhys += (RTGCPHYS)cIncPages << PAGE_SHIFT;
695	if (GCPhys >= GCPhysLast) /* (may not always hit, but we're run out of ranges.) */
696	{
697	pgmUnlock(pVM);
698	return VERR_DBGF_MEM_NOT_FOUND;
699	}
700	iPage += cIncPages;
701	if ( iPage < cIncPages
702	\|\| iPage >= cPages)
703	break;
704	}
705	}
706	}
707	pgmUnlock(pVM);
708	return VERR_DBGF_MEM_NOT_FOUND;
709	}
710
711
712	/**
713	* Scans (guest) virtual memory for a byte string.
714	*
715	* @returns VBox status codes:
716	* @retval VINF_SUCCESS and *pGCPtrHit on success.
717	* @retval VERR_DBGF_MEM_NOT_FOUND if not found.
718	* @retval VERR_INVALID_POINTER if any of the pointer arguments are invalid.
719	* @retval VERR_INVALID_ARGUMENT if any other arguments are invalid.
720	*
721	* @param pVM Pointer to the shared VM structure.
722	* @param pVCpu The CPU context to search in.
723	* @param GCPtr Where to start searching.
724	* @param GCPtrAlign The alignment of the needle. Must be a power of two
725	* and less or equal to 4GB.
726	* @param cbRange The number of bytes to search. Max 256 bytes.
727	* @param pabNeedle The byte string to search for.
728	* @param cbNeedle The length of the byte string.
729	* @param pGCPtrHit Where to store the address of the first occurrence on success.
730	*/
731	VMMR3DECL(int) PGMR3DbgScanVirtual(PVM pVM, PVMCPU pVCpu, RTGCPTR GCPtr, RTGCPTR cbRange, RTGCPTR GCPtrAlign,
732	const uint8_t *pabNeedle, size_t cbNeedle, PRTGCUINTPTR pGCPtrHit)
733	{
734	VMCPU_ASSERT_EMT(pVCpu);
735
736	/*
737	* Validate and adjust the input a bit.
738	*/
739	if (!VALID_PTR(pGCPtrHit))
740	return VERR_INVALID_POINTER;
741	*pGCPtrHit = 0;
742
743	if (!VALID_PTR(pabNeedle))
744	return VERR_INVALID_POINTER;
745	if (!cbNeedle)
746	return VERR_INVALID_PARAMETER;
747	if (cbNeedle > MAX_NEEDLE_SIZE)
748	return VERR_INVALID_PARAMETER;
749
750	if (!cbRange)
751	return VERR_DBGF_MEM_NOT_FOUND;
752	if (GCPtr + cbNeedle - 1 < GCPtr)
753	return VERR_DBGF_MEM_NOT_FOUND;
754
755	if (!GCPtrAlign)
756	return VERR_INVALID_PARAMETER;
757	if (GCPtrAlign > UINT32_MAX)
758	return VERR_NOT_POWER_OF_TWO;
759	if (GCPtrAlign & (GCPtrAlign - 1))
760	return VERR_INVALID_PARAMETER;
761
762	if (GCPtr & (GCPtrAlign - 1))
763	{
764	RTGCPTR Adj = GCPtrAlign - (GCPtr & (GCPtrAlign - 1));
765	if ( cbRange <= Adj
766	\|\| GCPtr + Adj < GCPtr)
767	return VERR_DBGF_MEM_NOT_FOUND;
768	GCPtr += Adj;
769	cbRange -= Adj;
770	}
771
772	/*
773	* Search the memory - ignore MMIO, zero and not-present pages.
774	*/
775	const bool fAllZero = ASMMemIsAll8(pabNeedle, cbNeedle, 0) == NULL;
776	PGMMODE enmMode = PGMGetGuestMode(pVCpu);
777	RTGCPTR GCPtrMask = PGMMODE_IS_LONG_MODE(enmMode) ? UINT64_MAX : UINT32_MAX;
778	uint8_t abPrev[MAX_NEEDLE_SIZE];
779	size_t cbPrev = 0;
780	const uint32_t cIncPages = GCPtrAlign <= PAGE_SIZE
781	? 1
782	: GCPtrAlign >> PAGE_SHIFT;
783	const RTGCPTR GCPtrLast = GCPtr + cbRange - 1 >= GCPtr
784	? (GCPtr + cbRange - 1) & GCPtrMask
785	: GCPtrMask;
786	RTGCPTR cPages = (((GCPtrLast - GCPtr) + (GCPtr & PAGE_OFFSET_MASK)) >> PAGE_SHIFT) + 1;
787	uint32_t offPage = GCPtr & PAGE_OFFSET_MASK;
788	GCPtr &= ~(RTGCPTR)PAGE_OFFSET_MASK;
789	for (;; offPage = 0)
790	{
791	RTGCPHYS GCPhys;
792	int rc = PGMPhysGCPtr2GCPhys(pVCpu, GCPtr, &GCPhys);
793	if (RT_SUCCESS(rc))
794	{
795	PPGMPAGE pPage = pgmPhysGetPage(&pVM->pgm.s, GCPhys);
796	if ( pPage
797	&& ( !PGM_PAGE_IS_ZERO(pPage)
798	\|\| fAllZero)
799	&& !PGM_PAGE_IS_BALLOONED(pPage)
800	&& !PGM_PAGE_IS_MMIO(pPage))
801	{
802	void const *pvPage;
803	PGMPAGEMAPLOCK Lock;
804	rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, &pvPage, &Lock);
805	if (RT_SUCCESS(rc))
806	{
807	int32_t offHit = offPage;
808	bool fRc;
809	if (GCPtrAlign < PAGE_SIZE)
810	{
811	uint32_t cbSearch = cPages > 0
812	? PAGE_SIZE - (uint32_t)offPage
813	: (GCPtrLast & PAGE_OFFSET_MASK) + 1 - (uint32_t)offPage;
814	fRc = pgmR3DbgScanPage((uint8_t const *)pvPage, &offHit, cbSearch, (uint32_t)GCPtrAlign,
815	pabNeedle, cbNeedle, &abPrev[0], &cbPrev);
816	}
817	else
818	fRc = memcmp(pvPage, pabNeedle, cbNeedle) == 0
819	&& (GCPtrLast - GCPtr) >= cbNeedle;
820	PGMPhysReleasePageMappingLock(pVM, &Lock);
821	if (fRc)
822	{
823	*pGCPtrHit = GCPtr + offHit;
824	return VINF_SUCCESS;
825	}
826	}
827	else
828	cbPrev = 0; /* ignore error. */
829	}
830	else
831	cbPrev = 0;
832	}
833	else
834	cbPrev = 0; /* ignore error. */
835
836	/* advance to the next page. */
837	if (cPages <= cIncPages)
838	break;
839	cPages -= cIncPages;
840	GCPtr += (RTGCPTR)cIncPages << PAGE_SHIFT;
841	}
842	return VERR_DBGF_MEM_NOT_FOUND;
843	}
844
845
846	/**
847	* Initializes the dumper state.
848	*
849	* @param pState The state to initialize.
850	* @param pVM The VM handle.
851	* @param fFlags The flags.
852	* @param u64FirstAddr The first address.
853	* @param u64LastAddr The last address.
854	* @param pHlp The output helpers.
855	*/
856	static void pgmR3DumpHierarchyInitState(PPGMR3DUMPHIERARCHYSTATE pState, PVM pVM, uint32_t fFlags,
857	uint64_t u64FirstAddr, uint64_t u64LastAddr, PCDBGFINFOHLP pHlp)
858	{
859	pState->pVM = pVM;
860	pState->pHlp = pHlp ? pHlp : DBGFR3InfoLogHlp();
861	pState->fPse = !!(fFlags & (DBGFPGDMP_FLAGS_PSE \| DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME));
862	pState->fPae = !!(fFlags & (DBGFPGDMP_FLAGS_PAE \| DBGFPGDMP_FLAGS_LME));
863	pState->fLme = !!(fFlags & DBGFPGDMP_FLAGS_LME);
864	pState->fNp = !!(fFlags & DBGFPGDMP_FLAGS_NP);
865	pState->fEpt = !!(fFlags & DBGFPGDMP_FLAGS_EPT);
866	pState->fNxe = !!(fFlags & DBGFPGDMP_FLAGS_NXE);
867	pState->cchAddress = pState->fLme ? 16 : 8;
868	pState->uLastRsvdBit = pState->fNxe ? 62 : 63;
869	pState->fDumpPageInfo = !!(fFlags & DBGFPGDMP_FLAGS_PAGE_INFO);
870	pState->fPrintHeader = !!(fFlags & DBGFPGDMP_FLAGS_HEADER);
871	pState->fPrintCr3 = !!(fFlags & DBGFPGDMP_FLAGS_PRINT_CR3);
872	pState->afReserved[0] = false;
873	pState->afReserved[1] = false;
874	pState->afReserved[2] = false;
875	pState->afReserved[3] = false;
876	pState->afReserved[4] = false;
877	pState->u64Address = u64FirstAddr;
878	pState->u64FirstAddress = u64FirstAddr;
879	pState->u64LastAddress = u64LastAddr;
880	pState->u64HighReservedBits = pState->uLastRsvdBit == 62 ? UINT64_C(0x7ff) << 52 : UINT64_C(0xfff) << 52;
881	pState->cLeaves = 0;
882	}
883
884
885	/**
886	* The simple way out, too tired to think of a more elegant solution.
887	*
888	* @returns The base address of this page table/directory/whatever.
889	* @param pState The state where we get the current address.
890	* @param cShift The shift count for the table entries.
891	* @param cEntries The number of table entries.
892	* @param piFirst Where to return the table index of the first
893	* entry to dump.
894	* @param piLast Where to return the table index of the last
895	* entry.
896	*/
897	static uint64_t pgmR3DumpHierarchyCalcRange(PPGMR3DUMPHIERARCHYSTATE pState, uint32_t cShift, uint32_t cEntries,
898	uint32_t piFirst, uint32_t piLast)
899	{
900	const uint64_t iBase = (pState->u64Address >> cShift) & ~(uint64_t)(cEntries - 1);
901	const uint64_t iFirst = pState->u64FirstAddress >> cShift;
902	const uint64_t iLast = pState->u64LastAddress >> cShift;
903
904	if ( iBase >= iFirst
905	&& iBase + cEntries - 1 <= iLast)
906	{
907	/* full range. */
908	*piFirst = 0;
909	*piLast = cEntries - 1;
910	}
911	else if ( iBase + cEntries - 1 < iFirst
912	\|\| iBase > iLast)
913	{
914	/* no match */
915	*piFirst = cEntries;
916	*piLast = 0;
917	}
918	else
919	{
920	/* partial overlap */
921	*piFirst = iBase <= iFirst
922	? iFirst - iBase
923	: 0;
924	*piLast = iBase + cEntries - 1 <= iLast
925	? cEntries - 1
926	: iLast - iBase;
927	}
928
929	return iBase << cShift;
930	}
931
932
933	/**
934	* Maps/finds the shadow page.
935	*
936	* @returns VBox status code.
937	* @param pState The dumper state.
938	* @param HCPhys The physical address of the shadow page.
939	* @param pszDesc The description.
940	* @param fIsMapping Set if it's a mapping.
941	* @param ppv Where to return the pointer.
942	*/
943	static int pgmR3DumpHierarchyShwMapPage(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, const char *pszDesc,
944	bool fIsMapping, void const **ppv)
945	{
946	void *pvPage;
947	if (!fIsMapping)
948	{
949	int rc = MMPagePhys2PageTry(pState->pVM, HCPhys, &pvPage);
950	if (RT_FAILURE(rc))
951	{
952	pState->pHlp->pfnPrintf(pState->pHlp, "%0*llx error! %s at HCPhys=%RHp was not found in the page pool!\n",
953	pState->cchAddress, pState->u64Address, pszDesc, HCPhys);
954	return rc;
955	}
956	}
957	else
958	{
959	pvPage = NULL;
960	for (PPGMMAPPING pMap = pState->pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
961	{
962	uint64_t off = pState->u64Address - pMap->GCPtr;
963	if (off < pMap->cb)
964	{
965	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
966	const int iSub = (int)((off >> X86_PD_PAE_SHIFT) & 1); /* MSC is a pain sometimes */
967	if ((iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0) != HCPhys)
968	pState->pHlp->pfnPrintf(pState->pHlp,
969	"%0*llx error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
970	pState->cchAddress, pState->u64Address, iPDE,
971	iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0, HCPhys);
972	pvPage = &pMap->aPTs[iPDE].paPaePTsR3[iSub];
973	break;
974	}
975	}
976	if (!pvPage)
977	{
978	pState->pHlp->pfnPrintf(pState->pHlp, "%0*llx error! PT mapping %s at HCPhys=%RHp was not found in the page pool!\n",
979	pState->cchAddress, pState->u64Address, HCPhys);
980	return VERR_INVALID_PARAMETER;
981	}
982	}
983	*ppv = pvPage;
984	return VINF_SUCCESS;
985	}
986
987
988	/**
989	* Dumps the a shadow page summary or smth.
990	*
991	* @param pState The dumper state.
992	* @param HCPhys The page address.
993	*/
994	static void pgmR3DumpHierarchyShwTablePageInfo(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys)
995	{
996	pgmLock(pState->pVM);
997	char szPage[80];
998	PPGMPOOLPAGE pPage = pgmPoolQueryPageForDbg(pState->pVM->pgm.s.CTX_SUFF(pPool), HCPhys);
999	if (pPage)
1000	RTStrPrintf(szPage, sizeof(szPage), " idx=0i%u", pPage->idx);
1001	else
1002	{
1003	/* probably a mapping */
1004	strcpy(szPage, " not found");
1005	for (PPGMMAPPING pMap = pState->pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
1006	{
1007	uint64_t off = pState->u64Address - pMap->GCPtr;
1008	if (off < pMap->cb)
1009	{
1010	const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
1011	if (pMap->aPTs[iPDE].HCPhysPT == HCPhys)
1012	RTStrPrintf(szPage, sizeof(szPage), " #%u: %s", iPDE, pMap->pszDesc);
1013	else if (pMap->aPTs[iPDE].HCPhysPaePT0 == HCPhys)
1014	RTStrPrintf(szPage, sizeof(szPage), " #%u/0: %s", iPDE, pMap->pszDesc);
1015	else if (pMap->aPTs[iPDE].HCPhysPaePT1 == HCPhys)
1016	RTStrPrintf(szPage, sizeof(szPage), " #%u/1: %s", iPDE, pMap->pszDesc);
1017	else
1018	continue;
1019	break;
1020	}
1021	}
1022	}
1023	pgmUnlock(pState->pVM);
1024	pState->pHlp->pfnPrintf(pState->pHlp, "%s", szPage);
1025	}
1026
1027
1028	/**
1029	* Figures out which guest page this is and dumps a summary.
1030	*
1031	* @param pState The dumper state.
1032	* @param HCPhys The page address.
1033	* @param cbPage The page size.
1034	*/
1035	static void pgmR3DumpHierarchyShwGuestPageInfo(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, uint32_t cbPage)
1036	{
1037	char szPage[80];
1038	RTGCPHYS GCPhys;
1039	int rc = PGMR3DbgHCPhys2GCPhys(pState->pVM, HCPhys, &GCPhys);
1040	if (RT_SUCCESS(rc))
1041	{
1042	pgmLock(pState->pVM);
1043	PCPGMPAGE pPage = pgmPhysGetPage(&pState->pVM->pgm.s, GCPhys);
1044	if (pPage)
1045	RTStrPrintf(szPage, sizeof(szPage), "%R[pgmpage]", pPage);
1046	else
1047	strcpy(szPage, "not found");
1048	pgmUnlock(pState->pVM);
1049	pState->pHlp->pfnPrintf(pState->pHlp, " -> %RGp %s", GCPhys, szPage);
1050	}
1051	else
1052	{
1053	/* check the heap */
1054	uint32_t cbAlloc;
1055	rc = MMR3HyperQueryInfoFromHCPhys(pState->pVM, HCPhys, szPage, sizeof(szPage), &cbAlloc);
1056	if (RT_SUCCESS(rc))
1057	pState->pHlp->pfnPrintf(pState->pHlp, " %s %#x bytes", szPage, cbAlloc);
1058	else
1059	pState->pHlp->pfnPrintf(pState->pHlp, " not found");
1060	}
1061	}
1062
1063
1064	/**
1065	* Dumps a PAE shadow page table.
1066	*
1067	* @returns VBox status code (VINF_SUCCESS).
1068	* @param pState The dumper state.
1069	* @param HCPhys The page table address.
1070	* @param fIsMapping Whether it is a mapping.
1071	*/
1072	static int pgmR3DumpHierarchyShwPaePT(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, bool fIsMapping)
1073	{
1074	PCPGMSHWPTPAE pPT;
1075	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page table", fIsMapping, (void const **)&pPT);
1076	if (RT_FAILURE(rc))
1077	return rc;
1078
1079	uint32_t iFirst, iLast;
1080	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PT_PAE_SHIFT, X86_PG_PAE_ENTRIES, &iFirst, &iLast);
1081	for (uint32_t i = iFirst; i <= iLast; i++)
1082	if (PGMSHWPTEPAE_GET_U(pPT->a[i]) & X86_PTE_P)
1083	{
1084	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PT_PAE_SHIFT);
1085	if (PGMSHWPTEPAE_IS_P(pPT->a[i]))
1086	{
1087	X86PTEPAE Pte;
1088	Pte.u = PGMSHWPTEPAE_GET_U(pPT->a[i]);
1089	pState->pHlp->pfnPrintf(pState->pHlp,
1090	pState->fLme /P R S A D G WT CD AT NX 4M a p ? /
1091	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx"
1092	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx",
1093	pState->u64Address,
1094	Pte.n.u1Write ? 'W' : 'R',
1095	Pte.n.u1User ? 'U' : 'S',
1096	Pte.n.u1Accessed ? 'A' : '-',
1097	Pte.n.u1Dirty ? 'D' : '-',
1098	Pte.n.u1Global ? 'G' : '-',
1099	Pte.n.u1WriteThru ? "WT" : "--",
1100	Pte.n.u1CacheDisable? "CD" : "--",
1101	Pte.n.u1PAT ? "AT" : "--",
1102	Pte.n.u1NoExecute ? "NX" : "--",
1103	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
1104	Pte.u & RT_BIT(10) ? '1' : '0',
1105	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED? 'v' : '-',
1106	Pte.u & X86_PTE_PAE_PG_MASK);
1107	if (pState->fDumpPageInfo)
1108	pgmR3DumpHierarchyShwGuestPageInfo(pState, Pte.u & X86_PTE_PAE_PG_MASK, _4K);
1109	if ((Pte.u >> 52) & 0x7ff)
1110	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx%s", (Pte.u >> 52) & 0x7ff, pState->fLme ? "" : "!");
1111	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1112	}
1113	else if ( (PGMSHWPTEPAE_GET_U(pPT->a[i]) & (pState->pVM->pgm.s.HCPhysInvMmioPg \| X86_PTE_PAE_MBZ_MASK_NO_NX))
1114	== (pState->pVM->pgm.s.HCPhysInvMmioPg \| X86_PTE_PAE_MBZ_MASK_NO_NX))
1115	pState->pHlp->pfnPrintf(pState->pHlp,
1116	pState->fLme
1117	? "%016llx 3 \| invalid / MMIO optimization\n"
1118	: "%08llx 2 \| invalid / MMIO optimization\n",
1119	pState->u64Address);
1120	else
1121	pState->pHlp->pfnPrintf(pState->pHlp,
1122	pState->fLme
1123	? "%016llx 3 \| invalid: %RX64\n"
1124	: "%08llx 2 \| invalid: %RX64\n",
1125	pState->u64Address, PGMSHWPTEPAE_GET_U(pPT->a[i]));
1126	pState->cLeaves++;
1127	}
1128	return VINF_SUCCESS;
1129	}
1130
1131
1132	/**
1133	* Dumps a PAE shadow page directory table.
1134	*
1135	* @returns VBox status code (VINF_SUCCESS).
1136	* @param pState The dumper state.
1137	* @param HCPhys The physical address of the page directory table.
1138	* @param cMaxDepth The maximum depth.
1139	*/
1140	static int pgmR3DumpHierarchyShwPaePD(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, unsigned cMaxDepth)
1141	{
1142	PCX86PDPAE pPD;
1143	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page directory", false, (void const **)&pPD);
1144	if (RT_FAILURE(rc))
1145	return rc;
1146
1147	Assert(cMaxDepth > 0);
1148	cMaxDepth--;
1149
1150	uint32_t iFirst, iLast;
1151	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PD_PAE_SHIFT, X86_PG_PAE_ENTRIES, &iFirst, &iLast);
1152	for (uint32_t i = iFirst; i <= iLast; i++)
1153	{
1154	X86PDEPAE Pde = pPD->a[i];
1155	if (Pde.n.u1Present)
1156	{
1157	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PD_PAE_SHIFT);
1158	if (Pde.b.u1Size)
1159	{
1160	pState->pHlp->pfnPrintf(pState->pHlp,
1161	pState->fLme /P R S A D G WT CD AT NX 2M a p ? phys/
1162	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 2M %c%c%c %016llx"
1163	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 2M %c%c%c %016llx",
1164	pState->u64Address,
1165	Pde.b.u1Write ? 'W' : 'R',
1166	Pde.b.u1User ? 'U' : 'S',
1167	Pde.b.u1Accessed ? 'A' : '-',
1168	Pde.b.u1Dirty ? 'D' : '-',
1169	Pde.b.u1Global ? 'G' : '-',
1170	Pde.b.u1WriteThru ? "WT" : "--",
1171	Pde.b.u1CacheDisable? "CD" : "--",
1172	Pde.b.u1PAT ? "AT" : "--",
1173	Pde.b.u1NoExecute ? "NX" : "--",
1174	Pde.u & RT_BIT_64(9) ? '1' : '0',
1175	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
1176	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
1177	Pde.u & X86_PDE2M_PAE_PG_MASK);
1178	if (pState->fDumpPageInfo)
1179	pgmR3DumpHierarchyShwGuestPageInfo(pState, Pde.u & X86_PDE2M_PAE_PG_MASK, _2M);
1180	if ((Pde.u >> 52) & 0x7ff)
1181	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx%s", (Pde.u >> 52) & 0x7ff, pState->fLme ? "" : "!");
1182	if ((Pde.u >> 13) & 0xff)
1183	pState->pHlp->pfnPrintf(pState->pHlp, " 20:13=%02llx%s", (Pde.u >> 13) & 0x0ff, pState->fLme ? "" : "!");
1184	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1185
1186	pState->cLeaves++;
1187	}
1188	else
1189	{
1190	pState->pHlp->pfnPrintf(pState->pHlp,
1191	pState->fLme /P R S A D G WT CD AT NX 4M a p ? phys /
1192	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s .. %c%c%c %016llx"
1193	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s .. %c%c%c %016llx",
1194	pState->u64Address,
1195	Pde.n.u1Write ? 'W' : 'R',
1196	Pde.n.u1User ? 'U' : 'S',
1197	Pde.n.u1Accessed ? 'A' : '-',
1198	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
1199	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
1200	Pde.n.u1WriteThru ? "WT" : "--",
1201	Pde.n.u1CacheDisable? "CD" : "--",
1202	Pde.n.u1NoExecute ? "NX" : "--",
1203	Pde.u & RT_BIT_64(9) ? '1' : '0',
1204	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
1205	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
1206	Pde.u & X86_PDE_PAE_PG_MASK);
1207	if (pState->fDumpPageInfo)
1208	pgmR3DumpHierarchyShwTablePageInfo(pState, Pde.u & X86_PDE_PAE_PG_MASK);
1209	if ((Pde.u >> 52) & 0x7ff)
1210	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx!", (Pde.u >> 52) & 0x7ff);
1211	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1212
1213	if (cMaxDepth)
1214	{
1215	int rc2 = pgmR3DumpHierarchyShwPaePT(pState, Pde.u & X86_PDE_PAE_PG_MASK, !!(Pde.u & PGM_PDFLAGS_MAPPING));
1216	if (rc2 < rc && RT_SUCCESS(rc))
1217	rc = rc2;
1218	}
1219	else
1220	pState->cLeaves++;
1221	}
1222	}
1223	}
1224	return rc;
1225	}
1226
1227
1228	/**
1229	* Dumps a PAE shadow page directory pointer table.
1230	*
1231	* @returns VBox status code (VINF_SUCCESS).
1232	* @param pState The dumper state.
1233	* @param HCPhys The physical address of the page directory pointer table.
1234	* @param cMaxDepth The maximum depth.
1235	*/
1236	static int pgmR3DumpHierarchyShwPaePDPT(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, unsigned cMaxDepth)
1237	{
1238	/* Fend of addresses that are out of range in PAE mode - simplifies the code below. */
1239	if (!pState->fLme && pState->u64Address >= _4G)
1240	return VINF_SUCCESS;
1241
1242	PCX86PDPT pPDPT;
1243	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page directory pointer table", false, (void const **)&pPDPT);
1244	if (RT_FAILURE(rc))
1245	return rc;
1246
1247	Assert(cMaxDepth > 0);
1248	cMaxDepth--;
1249
1250	uint32_t iFirst, iLast;
1251	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PDPT_SHIFT,
1252	pState->fLme ? X86_PG_AMD64_PDPE_ENTRIES : X86_PG_PAE_PDPE_ENTRIES,
1253	&iFirst, &iLast);
1254	for (uint32_t i = iFirst; i <= iLast; i++)
1255	{
1256	X86PDPE Pdpe = pPDPT->a[i];
1257	if (Pdpe.n.u1Present)
1258	{
1259	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PDPT_SHIFT);
1260	if (pState->fLme)
1261	{
1262	pState->pHlp->pfnPrintf(pState->pHlp, /P R S A D G WT CD AT NX .. a p ? /
1263	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1264	pState->u64Address,
1265	Pdpe.lm.u1Write ? 'W' : 'R',
1266	Pdpe.lm.u1User ? 'U' : 'S',
1267	Pdpe.lm.u1Accessed ? 'A' : '-',
1268	Pdpe.lm.u3Reserved & 1? '?' : '.', /* ignored */
1269	Pdpe.lm.u3Reserved & 4? '!' : '.', /* mbz */
1270	Pdpe.lm.u1WriteThru ? "WT" : "--",
1271	Pdpe.lm.u1CacheDisable? "CD" : "--",
1272	Pdpe.lm.u3Reserved & 2? "!" : "..",/* mbz */
1273	Pdpe.lm.u1NoExecute ? "NX" : "--",
1274	Pdpe.u & RT_BIT(9) ? '1' : '0',
1275	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
1276	Pdpe.u & RT_BIT(11) ? '1' : '0',
1277	Pdpe.u & X86_PDPE_PG_MASK);
1278	if (pState->fDumpPageInfo)
1279	pgmR3DumpHierarchyShwTablePageInfo(pState, Pdpe.u & X86_PDPE_PG_MASK);
1280	if ((Pdpe.u >> 52) & 0x7ff)
1281	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx", (Pdpe.u >> 52) & 0x7ff);
1282	}
1283	else
1284	{
1285	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX .. a p ? /
1286	"%08llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1287	pState->u64Address,
1288	Pdpe.n.u2Reserved & 1? '!' : '.', /* mbz */
1289	Pdpe.n.u2Reserved & 2? '!' : '.', /* mbz */
1290	Pdpe.n.u4Reserved & 1? '!' : '.', /* mbz */
1291	Pdpe.n.u4Reserved & 2? '!' : '.', /* mbz */
1292	Pdpe.n.u4Reserved & 8? '!' : '.', /* mbz */
1293	Pdpe.n.u1WriteThru ? "WT" : "--",
1294	Pdpe.n.u1CacheDisable? "CD" : "--",
1295	Pdpe.n.u4Reserved & 2? "!" : "..",/* mbz */
1296	Pdpe.lm.u1NoExecute ? "!!" : "..",/* mbz */
1297	Pdpe.u & RT_BIT(9) ? '1' : '0',
1298	Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
1299	Pdpe.u & RT_BIT(11) ? '1' : '0',
1300	Pdpe.u & X86_PDPE_PG_MASK);
1301	if (pState->fDumpPageInfo)
1302	pgmR3DumpHierarchyShwTablePageInfo(pState, Pdpe.u & X86_PDPE_PG_MASK);
1303	if ((Pdpe.u >> 52) & 0xfff)
1304	pState->pHlp->pfnPrintf(pState->pHlp, " 63:52=%03llx!", (Pdpe.u >> 52) & 0xfff);
1305	}
1306	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1307
1308	if (cMaxDepth)
1309	{
1310	int rc2 = pgmR3DumpHierarchyShwPaePD(pState, Pdpe.u & X86_PDPE_PG_MASK, cMaxDepth);
1311	if (rc2 < rc && RT_SUCCESS(rc))
1312	rc = rc2;
1313	}
1314	else
1315	pState->cLeaves++;
1316	}
1317	}
1318	return rc;
1319	}
1320
1321
1322	/**
1323	* Dumps a 32-bit shadow page table.
1324	*
1325	* @returns VBox status code (VINF_SUCCESS).
1326	* @param pVM The VM handle.
1327	* @param HCPhys The physical address of the table.
1328	* @param cMaxDepth The maximum depth.
1329	*/
1330	static int pgmR3DumpHierarchyShwPaePML4(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, unsigned cMaxDepth)
1331	{
1332	PCX86PML4 pPML4;
1333	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page map level 4", false, (void const **)&pPML4);
1334	if (RT_FAILURE(rc))
1335	return rc;
1336
1337	Assert(cMaxDepth);
1338	cMaxDepth--;
1339
1340	/*
1341	* This is a bit tricky as we're working on unsigned addresses while the
1342	* AMD64 spec uses signed tricks.
1343	*/
1344	uint32_t iFirst = (pState->u64FirstAddress >> X86_PML4_SHIFT) & X86_PML4_MASK;
1345	uint32_t iLast = (pState->u64LastAddress >> X86_PML4_SHIFT) & X86_PML4_MASK;
1346	if ( pState->u64LastAddress <= UINT64_C(0x00007fffffffffff)
1347	\|\| pState->u64FirstAddress >= UINT64_C(0xffff800000000000))
1348	{ /* Simple, nothing to adjust */ }
1349	else if (pState->u64FirstAddress <= UINT64_C(0x00007fffffffffff))
1350	iLast = X86_PG_AMD64_ENTRIES / 2 - 1;
1351	else if (pState->u64LastAddress >= UINT64_C(0xffff800000000000))
1352	iFirst = X86_PG_AMD64_ENTRIES / 2;
1353	else
1354	iFirst = X86_PG_AMD64_ENTRIES; /* neither address is canonical */
1355
1356	for (uint32_t i = iFirst; i <= iLast; i++)
1357	{
1358	X86PML4E Pml4e = pPML4->a[i];
1359	if (Pml4e.n.u1Present)
1360	{
1361	pState->u64Address = ((uint64_t)i << X86_PML4_SHIFT)
1362	\| (i >= RT_ELEMENTS(pPML4->a) / 2 ? UINT64_C(0xffff000000000000) : 0);
1363	pState->pHlp->pfnPrintf(pState->pHlp, /P R S A D G WT CD AT NX 4M a p ? /
1364	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1365	pState->u64Address,
1366	Pml4e.n.u1Write ? 'W' : 'R',
1367	Pml4e.n.u1User ? 'U' : 'S',
1368	Pml4e.n.u1Accessed ? 'A' : '-',
1369	Pml4e.n.u3Reserved & 1? '?' : '.', /* ignored */
1370	Pml4e.n.u3Reserved & 4? '!' : '.', /* mbz */
1371	Pml4e.n.u1WriteThru ? "WT" : "--",
1372	Pml4e.n.u1CacheDisable? "CD" : "--",
1373	Pml4e.n.u3Reserved & 2? "!" : "..",/* mbz */
1374	Pml4e.n.u1NoExecute ? "NX" : "--",
1375	Pml4e.u & RT_BIT(9) ? '1' : '0',
1376	Pml4e.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
1377	Pml4e.u & RT_BIT(11) ? '1' : '0',
1378	Pml4e.u & X86_PML4E_PG_MASK);
1379	if (pState->fDumpPageInfo)
1380	pgmR3DumpHierarchyShwTablePageInfo(pState, Pml4e.u & X86_PML4E_PG_MASK);
1381	if ((Pml4e.u >> 52) & 0x7ff)
1382	pState->pHlp->pfnPrintf(pState->pHlp, " 62:52=%03llx!", (Pml4e.u >> 52) & 0x7ff);
1383	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1384
1385	if (cMaxDepth)
1386	{
1387	int rc2 = pgmR3DumpHierarchyShwPaePDPT(pState, Pml4e.u & X86_PML4E_PG_MASK, cMaxDepth);
1388	if (rc2 < rc && RT_SUCCESS(rc))
1389	rc = rc2;
1390	}
1391	else
1392	pState->cLeaves++;
1393	}
1394	}
1395	return rc;
1396	}
1397
1398
1399	/**
1400	* Dumps a 32-bit shadow page table.
1401	*
1402	* @returns VBox status code (VINF_SUCCESS).
1403	* @param pVM The VM handle.
1404	* @param pPT Pointer to the page table.
1405	* @param fMapping Set if it's a guest mapping.
1406	*/
1407	static int pgmR3DumpHierarchyShw32BitPT(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, bool fMapping)
1408	{
1409	PCX86PT pPT;
1410	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page table", fMapping, (void const **)&pPT);
1411	if (RT_FAILURE(rc))
1412	return rc;
1413
1414	uint32_t iFirst, iLast;
1415	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PT_SHIFT, X86_PG_ENTRIES, &iFirst, &iLast);
1416	for (uint32_t i = iFirst; i <= iLast; i++)
1417	{
1418	X86PTE Pte = pPT->a[i];
1419	if (Pte.n.u1Present)
1420	{
1421	pState->u64Address = u64BaseAddress + (i << X86_PT_SHIFT);
1422	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d /
1423	"%08llx 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x",
1424	pState->u64Address,
1425	Pte.n.u1Write ? 'W' : 'R',
1426	Pte.n.u1User ? 'U' : 'S',
1427	Pte.n.u1Accessed ? 'A' : '-',
1428	Pte.n.u1Dirty ? 'D' : '-',
1429	Pte.n.u1Global ? 'G' : '-',
1430	Pte.n.u1WriteThru ? "WT" : "--",
1431	Pte.n.u1CacheDisable? "CD" : "--",
1432	Pte.n.u1PAT ? "AT" : "--",
1433	Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
1434	Pte.u & RT_BIT(10) ? '1' : '0',
1435	Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
1436	Pte.u & X86_PDE_PG_MASK);
1437	if (pState->fDumpPageInfo)
1438	pgmR3DumpHierarchyShwGuestPageInfo(pState, Pte.u & X86_PDE_PG_MASK, _4K);
1439	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1440	}
1441	}
1442	return VINF_SUCCESS;
1443	}
1444
1445
1446	/**
1447	* Dumps a 32-bit shadow page directory and page tables.
1448	*
1449	* @returns VBox status code (VINF_SUCCESS).
1450	* @param pState The dumper state.
1451	* @param HCPhys The physical address of the table.
1452	* @param cMaxDepth The maximum depth.
1453	*/
1454	static int pgmR3DumpHierarchyShw32BitPD(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS HCPhys, unsigned cMaxDepth)
1455	{
1456	if (pState->u64Address >= _4G)
1457	return VINF_SUCCESS;
1458
1459	PCX86PD pPD;
1460	int rc = pgmR3DumpHierarchyShwMapPage(pState, HCPhys, "Page directory", false, (void const **)&pPD);
1461	if (RT_FAILURE(rc))
1462	return rc;
1463
1464	Assert(cMaxDepth > 0);
1465	cMaxDepth--;
1466
1467	uint32_t iFirst, iLast;
1468	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PD_SHIFT, X86_PG_ENTRIES, &iFirst, &iLast);
1469	for (uint32_t i = iFirst; i <= iLast; i++)
1470	{
1471	X86PDE Pde = pPD->a[i];
1472	if (Pde.n.u1Present)
1473	{
1474	pState->u64Address = (uint32_t)i << X86_PD_SHIFT;
1475	if (Pde.b.u1Size && pState->fPse)
1476	{
1477	uint64_t u64Phys = ((uint64_t)(Pde.u & X86_PDE4M_PG_HIGH_MASK) << X86_PDE4M_PG_HIGH_SHIFT)
1478	\| (Pde.u & X86_PDE4M_PG_MASK);
1479	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d phys /
1480	"%08llx 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08llx",
1481	pState->u64Address,
1482	Pde.b.u1Write ? 'W' : 'R',
1483	Pde.b.u1User ? 'U' : 'S',
1484	Pde.b.u1Accessed ? 'A' : '-',
1485	Pde.b.u1Dirty ? 'D' : '-',
1486	Pde.b.u1Global ? 'G' : '-',
1487	Pde.b.u1WriteThru ? "WT" : "--",
1488	Pde.b.u1CacheDisable? "CD" : "--",
1489	Pde.b.u1PAT ? "AT" : "--",
1490	Pde.u & RT_BIT_32(9) ? '1' : '0',
1491	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
1492	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
1493	u64Phys);
1494	if (pState->fDumpPageInfo)
1495	pgmR3DumpHierarchyShwGuestPageInfo(pState, u64Phys, _4M);
1496	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1497	pState->cLeaves++;
1498	}
1499	else
1500	{
1501	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d phys /
1502	"%08llx 0 \| P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x",
1503	pState->u64Address,
1504	Pde.n.u1Write ? 'W' : 'R',
1505	Pde.n.u1User ? 'U' : 'S',
1506	Pde.n.u1Accessed ? 'A' : '-',
1507	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
1508	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
1509	Pde.n.u1WriteThru ? "WT" : "--",
1510	Pde.n.u1CacheDisable? "CD" : "--",
1511	Pde.u & RT_BIT_32(9) ? '1' : '0',
1512	Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
1513	Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
1514	Pde.u & X86_PDE_PG_MASK);
1515	if (pState->fDumpPageInfo)
1516	pgmR3DumpHierarchyShwTablePageInfo(pState, Pde.u & X86_PDE_PG_MASK);
1517	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1518
1519	if (cMaxDepth)
1520	{
1521	int rc2 = pgmR3DumpHierarchyShw32BitPT(pState, Pde.u & X86_PDE_PG_MASK, !!(Pde.u & PGM_PDFLAGS_MAPPING));
1522	if (rc2 < rc && RT_SUCCESS(rc))
1523	rc = rc2;
1524	}
1525	else
1526	pState->cLeaves++;
1527	}
1528	}
1529	}
1530
1531	return rc;
1532	}
1533
1534
1535	/**
1536	* Internal worker that initiates the actual dump.
1537	*
1538	* @returns VBox status code.
1539	* @param pState The dumper state.
1540	* @param cr3 The CR3 value.
1541	* @param cMaxDepth The max depth.
1542	*/
1543	static int pgmR3DumpHierarchyShwDoIt(PPGMR3DUMPHIERARCHYSTATE pState, uint64_t cr3, unsigned cMaxDepth)
1544	{
1545	int rc;
1546	unsigned const cch = pState->cchAddress;
1547	uint64_t const cr3Mask = pState->fEpt ? X86_CR3_AMD64_PAGE_MASK
1548	: pState->fLme ? X86_CR3_AMD64_PAGE_MASK
1549	: pState->fPae ? X86_CR3_PAE_PAGE_MASK
1550	: X86_CR3_PAGE_MASK;
1551	if (pState->fPrintCr3)
1552	{
1553	const char * const pszMode = pState->fEpt ? "Extended Page Tables"
1554	: pState->fLme ? "Long Mode"
1555	: pState->fPae ? "PAE Mode"
1556	: pState->fPse ? "32-bit w/ PSE"
1557	: "32-bit";
1558	pState->pHlp->pfnPrintf(pState->pHlp, "cr3=%0*llx", cch, cr3);
1559	if (pState->fDumpPageInfo)
1560	pgmR3DumpHierarchyShwTablePageInfo(pState, cr3 & X86_CR3_AMD64_PAGE_MASK);
1561	pState->pHlp->pfnPrintf(pState->pHlp, " %s%s\n",
1562	pszMode,
1563	pState->fNp ? " + Nested Paging" : "",
1564	pState->fNxe ? " + NX" : "");
1565	}
1566
1567
1568	if (pState->fEpt)
1569	{
1570	if (pState->fPrintHeader)
1571	pState->pHlp->pfnPrintf(pState->pHlp,
1572	"%-*s R - Readable\n"
1573	"%-*s \| W - Writeable\n"
1574	"%-*s \| \| X - Executable\n"
1575	"%-*s \| \| \| EMT - EPT memory type\n"
1576	"%-*s \| \| \| \| PAT - Ignored PAT?\n"
1577	"%-*s \| \| \| \| \| AVL1 - 4 available bits\n"
1578	"%-*s \| \| \| \| \| \| AVL2 - 12 available bits\n"
1579	"%-*s Level \| \| \| \| \| \| \| page \n"
1580	/* xxxx n **** R W X EMT PAT AVL1 AVL2 xxxxxxxxxxxxx
1581	R W X 7 0 f fff 0123456701234567 */
1582	,
1583	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
1584
1585	pState->pHlp->pfnPrintf(pState->pHlp, "EPT dumping is not yet implemented, sorry.\n");
1586	/** @todo implemented EPT dumping. */
1587	rc = VERR_NOT_IMPLEMENTED;
1588	}
1589	else
1590	{
1591	if (pState->fPrintHeader)
1592	pState->pHlp->pfnPrintf(pState->pHlp,
1593	"%-*s P - Present\n"
1594	"%-*s \| R/W - Read (0) / Write (1)\n"
1595	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
1596	"%-*s \| \| \| A - Accessed\n"
1597	"%-*s \| \| \| \| D - Dirty\n"
1598	"%-*s \| \| \| \| \| G - Global\n"
1599	"%-*s \| \| \| \| \| \| WT - Write thru\n"
1600	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
1601	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
1602	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
1603	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
1604	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - a=allocated; m=mapping; d=track dirty;\n"
1605	"%-*s \| \| \| \| \| \| \| \| \| \| \| \| p=permanent; v=validated;\n"
1606	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
1607	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
1608	- W U - - - -- -- -- -- -- 010 */
1609	,
1610	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
1611	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
1612	if (pState->fLme)
1613	rc = pgmR3DumpHierarchyShwPaePML4(pState, cr3 & cr3Mask, cMaxDepth);
1614	else if (pState->fPae)
1615	rc = pgmR3DumpHierarchyShwPaePDPT(pState, cr3 & cr3Mask, cMaxDepth);
1616	else
1617	rc = pgmR3DumpHierarchyShw32BitPD(pState, cr3 & cr3Mask, cMaxDepth);
1618	}
1619
1620	if (!pState->cLeaves)
1621	pState->pHlp->pfnPrintf(pState->pHlp, "not present\n");
1622	return rc;
1623	}
1624
1625
1626	/**
1627	* dbgfR3PagingDumpEx worker.
1628	*
1629	* @returns VBox status code.
1630	* @param pVM The VM handle.
1631	* @param cr3 The CR3 register value.
1632	* @param fFlags The flags, DBGFPGDMP_FLAGS_XXX.
1633	* @param u64FirstAddr The start address.
1634	* @param u64LastAddr The address to stop after.
1635	* @param cMaxDepth The max depth.
1636	* @param pHlp The output callbacks. Defaults to log if NULL.
1637	*
1638	* @internal
1639	*/
1640	VMMR3_INT_DECL(int) PGMR3DumpHierarchyShw(PVM pVM, uint64_t cr3, uint32_t fFlags, uint64_t u64FirstAddr, uint64_t u64LastAddr,
1641	uint32_t cMaxDepth, PCDBGFINFOHLP pHlp)
1642	{
1643	/* Minimal validation as we're only supposed to service DBGF. */
1644	AssertReturn(~(fFlags & ~DBGFPGDMP_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
1645	AssertReturn(!(fFlags & (DBGFPGDMP_FLAGS_CURRENT_MODE \| DBGFPGDMP_FLAGS_CURRENT_CR3)), VERR_INVALID_PARAMETER);
1646	AssertReturn(fFlags & DBGFPGDMP_FLAGS_SHADOW, VERR_INVALID_PARAMETER);
1647
1648	PGMR3DUMPHIERARCHYSTATE State;
1649	pgmR3DumpHierarchyInitState(&State, pVM, fFlags, u64FirstAddr, u64LastAddr, pHlp);
1650	return pgmR3DumpHierarchyShwDoIt(&State, cr3, cMaxDepth);
1651	}
1652
1653
1654	/**
1655	* Dumps a page table hierarchy use only physical addresses and cr4/lm flags.
1656	*
1657	* @returns VBox status code (VINF_SUCCESS).
1658	* @param pVM The VM handle.
1659	* @param cr3 The root of the hierarchy.
1660	* @param cr4 The cr4, only PAE and PSE is currently used.
1661	* @param fLongMode Set if long mode, false if not long mode.
1662	* @param cMaxDepth Number of levels to dump.
1663	* @param pHlp Pointer to the output functions.
1664	*
1665	* @deprecated Use DBGFR3PagingDumpEx.
1666	*/
1667	VMMR3DECL(int) PGMR3DumpHierarchyHC(PVM pVM, uint64_t cr3, uint64_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
1668	{
1669	if (!cMaxDepth)
1670	return VINF_SUCCESS;
1671
1672	PVMCPU pVCpu = VMMGetCpu(pVM);
1673	if (!pVCpu)
1674	pVCpu = &pVM->aCpus[0];
1675
1676	uint32_t fFlags = DBGFPGDMP_FLAGS_HEADER \| DBGFPGDMP_FLAGS_PRINT_CR3 \| DBGFPGDMP_FLAGS_PAGE_INFO \| DBGFPGDMP_FLAGS_SHADOW;
1677	fFlags \|= cr4 & (X86_CR4_PAE \| X86_CR4_PSE);
1678	if (fLongMode)
1679	fFlags \|= DBGFPGDMP_FLAGS_LME;
1680
1681	return DBGFR3PagingDumpEx(pVM, pVCpu->idCpu, fFlags, cr3, 0, fLongMode ? UINT64_MAX : UINT32_MAX, cMaxDepth, pHlp);
1682	}
1683
1684
1685	/**
1686	* Maps the guest page.
1687	*
1688	* @returns VBox status code.
1689	* @param pState The dumper state.
1690	* @param GCPhys The physical address of the guest page.
1691	* @param pszDesc The description.
1692	* @param ppv Where to return the pointer.
1693	* @param pLock Where to return the mapping lock. Hand this to
1694	* PGMPhysReleasePageMappingLock when done.
1695	*/
1696	static int pgmR3DumpHierarchyGstMapPage(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys, const char *pszDesc,
1697	void const **ppv, PPGMPAGEMAPLOCK pLock)
1698	{
1699	int rc = PGMPhysGCPhys2CCPtrReadOnly(pState->pVM, GCPhys, ppv, pLock);
1700	if (RT_FAILURE(rc))
1701	{
1702	pState->pHlp->pfnPrintf(pState->pHlp, "%0*llx error! Failed to map %s at GCPhys=%RGp: %Rrc!\n",
1703	pState->cchAddress, pState->u64Address, pszDesc, GCPhys, rc);
1704	return rc;
1705	}
1706	return VINF_SUCCESS;
1707	}
1708
1709
1710	/**
1711	* Figures out which guest page this is and dumps a summary.
1712	*
1713	* @param pState The dumper state.
1714	* @param GCPhys The page address.
1715	* @param cbPage The page size.
1716	*/
1717	static void pgmR3DumpHierarchyGstPageInfo(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys, uint32_t cbPage)
1718	{
1719	char szPage[80];
1720	pgmLock(pState->pVM);
1721	PCPGMPAGE pPage = pgmPhysGetPage(&pState->pVM->pgm.s, GCPhys);
1722	if (pPage)
1723	RTStrPrintf(szPage, sizeof(szPage), " %R[pgmpage]", pPage);
1724	else
1725	strcpy(szPage, " not found");
1726	pgmUnlock(pState->pVM);
1727	pState->pHlp->pfnPrintf(pState->pHlp, "%s", szPage);
1728	}
1729
1730
1731	/**
1732	* Checks the entry for reserved bits.
1733	*
1734	* @param pState The dumper state.
1735	* @param u64Entry The entry to check.
1736	*/
1737	static void pgmR3DumpHierarchyGstCheckReservedHighBits(PPGMR3DUMPHIERARCHYSTATE pState, uint64_t u64Entry)
1738	{
1739	uint32_t uRsvd = (u64Entry & pState->u64HighReservedBits) >> 52;
1740	if (uRsvd)
1741	pState->pHlp->pfnPrintf(pState->pHlp, " %u:52=%03x%s",
1742	pState->uLastRsvdBit, uRsvd, pState->fLme ? "" : "!");
1743	/** @todo check the valid physical bits as well. */
1744	}
1745
1746
1747	/**
1748	* Dumps a PAE shadow page table.
1749	*
1750	* @returns VBox status code (VINF_SUCCESS).
1751	* @param pState The dumper state.
1752	* @param GCPhys The page table address.
1753	*/
1754	static int pgmR3DumpHierarchyGstPaePT(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys)
1755	{
1756	PCX86PTPAE pPT;
1757	PGMPAGEMAPLOCK Lock;
1758	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page table", (void const **)&pPT, &Lock);
1759	if (RT_FAILURE(rc))
1760	return rc;
1761
1762	uint32_t iFirst, iLast;
1763	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PT_PAE_SHIFT, X86_PG_PAE_ENTRIES, &iFirst, &iLast);
1764	for (uint32_t i = iFirst; i <= iLast; i++)
1765	{
1766	X86PTEPAE Pte = pPT->a[i];
1767	if (Pte.n.u1Present)
1768	{
1769	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PT_PAE_SHIFT);
1770	pState->pHlp->pfnPrintf(pState->pHlp,
1771	pState->fLme /P R S A D G WT CD AT NX 4M a p ? /
1772	? "%016llx 3 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx"
1773	: "%08llx 2 \| P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx",
1774	pState->u64Address,
1775	Pte.n.u1Write ? 'W' : 'R',
1776	Pte.n.u1User ? 'U' : 'S',
1777	Pte.n.u1Accessed ? 'A' : '-',
1778	Pte.n.u1Dirty ? 'D' : '-',
1779	Pte.n.u1Global ? 'G' : '-',
1780	Pte.n.u1WriteThru ? "WT" : "--",
1781	Pte.n.u1CacheDisable? "CD" : "--",
1782	Pte.n.u1PAT ? "AT" : "--",
1783	Pte.n.u1NoExecute ? "NX" : "--",
1784	Pte.u & RT_BIT(9) ? '1' : '0',
1785	Pte.u & RT_BIT(10) ? '1' : '0',
1786	Pte.u & RT_BIT(11) ? '1' : '0',
1787	Pte.u & X86_PTE_PAE_PG_MASK);
1788	if (pState->fDumpPageInfo)
1789	pgmR3DumpHierarchyGstPageInfo(pState, Pte.u & X86_PTE_PAE_PG_MASK, _4K);
1790	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pte.u);
1791	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1792	pState->cLeaves++;
1793	}
1794	}
1795
1796	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
1797	return VINF_SUCCESS;
1798	}
1799
1800
1801	/**
1802	* Dumps a PAE shadow page directory table.
1803	*
1804	* @returns VBox status code (VINF_SUCCESS).
1805	* @param pState The dumper state.
1806	* @param GCPhys The physical address of the table.
1807	* @param cMaxDepth The maximum depth.
1808	*/
1809	static int pgmR3DumpHierarchyGstPaePD(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys, unsigned cMaxDepth)
1810	{
1811	PCX86PDPAE pPD;
1812	PGMPAGEMAPLOCK Lock;
1813	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page directory", (void const **)&pPD, &Lock);
1814	if (RT_FAILURE(rc))
1815	return rc;
1816
1817	Assert(cMaxDepth > 0);
1818	cMaxDepth--;
1819
1820	uint32_t iFirst, iLast;
1821	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PD_PAE_SHIFT, X86_PG_PAE_ENTRIES, &iFirst, &iLast);
1822	for (uint32_t i = iFirst; i <= iLast; i++)
1823	{
1824	X86PDEPAE Pde = pPD->a[i];
1825	if (Pde.n.u1Present)
1826	{
1827	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PD_PAE_SHIFT);
1828	if (Pde.b.u1Size)
1829	{
1830	pState->pHlp->pfnPrintf(pState->pHlp,
1831	pState->fLme /P R S A D G WT CD AT NX 2M a p ? phys/
1832	? "%016llx 2 \| P %c %c %c %c %c %s %s %s %s 2M %c%c%c %016llx"
1833	: "%08llx 1 \| P %c %c %c %c %c %s %s %s %s 2M %c%c%c %016llx",
1834	pState->u64Address,
1835	Pde.b.u1Write ? 'W' : 'R',
1836	Pde.b.u1User ? 'U' : 'S',
1837	Pde.b.u1Accessed ? 'A' : '-',
1838	Pde.b.u1Dirty ? 'D' : '-',
1839	Pde.b.u1Global ? 'G' : '-',
1840	Pde.b.u1WriteThru ? "WT" : "--",
1841	Pde.b.u1CacheDisable ? "CD" : "--",
1842	Pde.b.u1PAT ? "AT" : "--",
1843	Pde.b.u1NoExecute ? "NX" : "--",
1844	Pde.u & RT_BIT_64(9) ? '1' : '0',
1845	Pde.u & RT_BIT_64(10) ? '1' : '0',
1846	Pde.u & RT_BIT_64(11) ? '1' : '0',
1847	Pde.u & X86_PDE2M_PAE_PG_MASK);
1848	if (pState->fDumpPageInfo)
1849	pgmR3DumpHierarchyGstPageInfo(pState, Pde.u & X86_PDE2M_PAE_PG_MASK, _2M);
1850	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pde.u);
1851	if ((Pde.u >> 13) & 0xff)
1852	pState->pHlp->pfnPrintf(pState->pHlp, " 20:13=%02llx%s", (Pde.u >> 13) & 0x0ff, pState->fLme ? "" : "!");
1853	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1854
1855	pState->cLeaves++;
1856	}
1857	else
1858	{
1859	pState->pHlp->pfnPrintf(pState->pHlp,
1860	pState->fLme /P R S A D G WT CD AT NX 4M a p ? phys /
1861	? "%016llx 2 \| P %c %c %c %c %c %s %s .. %s .. %c%c%c %016llx"
1862	: "%08llx 1 \| P %c %c %c %c %c %s %s .. %s .. %c%c%c %016llx",
1863	pState->u64Address,
1864	Pde.n.u1Write ? 'W' : 'R',
1865	Pde.n.u1User ? 'U' : 'S',
1866	Pde.n.u1Accessed ? 'A' : '-',
1867	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
1868	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
1869	Pde.n.u1WriteThru ? "WT" : "--",
1870	Pde.n.u1CacheDisable ? "CD" : "--",
1871	Pde.n.u1NoExecute ? "NX" : "--",
1872	Pde.u & RT_BIT_64(9) ? '1' : '0',
1873	Pde.u & RT_BIT_64(10) ? '1' : '0',
1874	Pde.u & RT_BIT_64(11) ? '1' : '0',
1875	Pde.u & X86_PDE_PAE_PG_MASK);
1876	if (pState->fDumpPageInfo)
1877	pgmR3DumpHierarchyGstPageInfo(pState, Pde.u & X86_PDE_PAE_PG_MASK, _4K);
1878	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pde.u);
1879	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1880
1881	if (cMaxDepth)
1882	{
1883	int rc2 = pgmR3DumpHierarchyGstPaePT(pState, Pde.u & X86_PDE_PAE_PG_MASK);
1884	if (rc2 < rc && RT_SUCCESS(rc))
1885	rc = rc2;
1886	}
1887	else
1888	pState->cLeaves++;
1889	}
1890	}
1891	}
1892
1893	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
1894	return rc;
1895	}
1896
1897
1898	/**
1899	* Dumps a PAE shadow page directory pointer table.
1900	*
1901	* @returns VBox status code (VINF_SUCCESS).
1902	* @param pState The dumper state.
1903	* @param GCPhys The physical address of the table.
1904	* @param cMaxDepth The maximum depth.
1905	*/
1906	static int pgmR3DumpHierarchyGstPaePDPT(PPGMR3DUMPHIERARCHYSTATE pState, RTGCPHYS GCPhys, unsigned cMaxDepth)
1907	{
1908	/* Fend of addresses that are out of range in PAE mode - simplifies the code below. */
1909	if (!pState->fLme && pState->u64Address >= _4G)
1910	return VINF_SUCCESS;
1911
1912	PCX86PDPT pPDPT;
1913	PGMPAGEMAPLOCK Lock;
1914	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page directory pointer table", (void const **)&pPDPT, &Lock);
1915	if (RT_FAILURE(rc))
1916	return rc;
1917
1918	Assert(cMaxDepth > 0);
1919	cMaxDepth--;
1920
1921	uint32_t iFirst, iLast;
1922	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PDPT_SHIFT,
1923	pState->fLme ? X86_PG_AMD64_PDPE_ENTRIES : X86_PG_PAE_PDPE_ENTRIES,
1924	&iFirst, &iLast);
1925	for (uint32_t i = iFirst; i <= iLast; i++)
1926	{
1927	X86PDPE Pdpe = pPDPT->a[i];
1928	if (Pdpe.n.u1Present)
1929	{
1930	pState->u64Address = u64BaseAddress + ((uint64_t)i << X86_PDPT_SHIFT);
1931	if (pState->fLme)
1932	{
1933	/** @todo Do 1G pages. */
1934	pState->pHlp->pfnPrintf(pState->pHlp, /P R S A D G WT CD AT NX .. a p ? /
1935	"%016llx 1 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1936	pState->u64Address,
1937	Pdpe.lm.u1Write ? 'W' : 'R',
1938	Pdpe.lm.u1User ? 'U' : 'S',
1939	Pdpe.lm.u1Accessed ? 'A' : '-',
1940	Pdpe.lm.u3Reserved & 1 ? '?' : '.', /* ignored */
1941	Pdpe.lm.u3Reserved & 4 ? '!' : '.', /* mbz */
1942	Pdpe.lm.u1WriteThru ? "WT" : "--",
1943	Pdpe.lm.u1CacheDisable ? "CD" : "--",
1944	Pdpe.lm.u3Reserved & 2 ? "!" : "..",/* mbz */
1945	Pdpe.lm.u1NoExecute ? "NX" : "--",
1946	Pdpe.u & RT_BIT_64(9) ? '1' : '0',
1947	Pdpe.u & RT_BIT_64(10) ? '1' : '0',
1948	Pdpe.u & RT_BIT_64(11) ? '1' : '0',
1949	Pdpe.u & X86_PDPE_PG_MASK);
1950	if (pState->fDumpPageInfo)
1951	pgmR3DumpHierarchyGstPageInfo(pState, Pdpe.u & X86_PDPE_PG_MASK, _4K);
1952	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pdpe.u);
1953	}
1954	else
1955	{
1956	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX .. a p ? /
1957	"%08llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
1958	pState->u64Address,
1959	Pdpe.n.u2Reserved & 1 ? '!' : '.', /* mbz */
1960	Pdpe.n.u2Reserved & 2 ? '!' : '.', /* mbz */
1961	Pdpe.n.u4Reserved & 1 ? '!' : '.', /* mbz */
1962	Pdpe.n.u4Reserved & 2 ? '!' : '.', /* mbz */
1963	Pdpe.n.u4Reserved & 8 ? '!' : '.', /* mbz */
1964	Pdpe.n.u1WriteThru ? "WT" : "--",
1965	Pdpe.n.u1CacheDisable ? "CD" : "--",
1966	Pdpe.n.u4Reserved & 2 ? "!" : "..", /* mbz */
1967	Pdpe.lm.u1NoExecute ? "!!" : "..",/* mbz */
1968	Pdpe.u & RT_BIT_64(9) ? '1' : '0',
1969	Pdpe.u & RT_BIT_64(10) ? '1' : '0',
1970	Pdpe.u & RT_BIT_64(11) ? '1' : '0',
1971	Pdpe.u & X86_PDPE_PG_MASK);
1972	if (pState->fDumpPageInfo)
1973	pgmR3DumpHierarchyGstPageInfo(pState, Pdpe.u & X86_PDPE_PG_MASK, _4K);
1974	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pdpe.u);
1975	}
1976	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
1977
1978	if (cMaxDepth)
1979	{
1980	int rc2 = pgmR3DumpHierarchyGstPaePD(pState, Pdpe.u & X86_PDPE_PG_MASK, cMaxDepth);
1981	if (rc2 < rc && RT_SUCCESS(rc))
1982	rc = rc2;
1983	}
1984	else
1985	pState->cLeaves++;
1986	}
1987	}
1988
1989	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
1990	return rc;
1991	}
1992
1993
1994	/**
1995	* Dumps a 32-bit shadow page table.
1996	*
1997	* @returns VBox status code (VINF_SUCCESS).
1998	* @param pVM The VM handle.
1999	* @param GCPhys The physical address of the table.
2000	* @param cMaxDepth The maximum depth.
2001	*/
2002	static int pgmR3DumpHierarchyGstPaePML4(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS GCPhys, unsigned cMaxDepth)
2003	{
2004	PCX86PML4 pPML4;
2005	PGMPAGEMAPLOCK Lock;
2006	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page map level 4", (void const **)&pPML4, &Lock);
2007	if (RT_FAILURE(rc))
2008	return rc;
2009
2010	Assert(cMaxDepth);
2011	cMaxDepth--;
2012
2013	/*
2014	* This is a bit tricky as we're working on unsigned addresses while the
2015	* AMD64 spec uses signed tricks.
2016	*/
2017	uint32_t iFirst = (pState->u64FirstAddress >> X86_PML4_SHIFT) & X86_PML4_MASK;
2018	uint32_t iLast = (pState->u64LastAddress >> X86_PML4_SHIFT) & X86_PML4_MASK;
2019	if ( pState->u64LastAddress <= UINT64_C(0x00007fffffffffff)
2020	\|\| pState->u64FirstAddress >= UINT64_C(0xffff800000000000))
2021	{ /* Simple, nothing to adjust */ }
2022	else if (pState->u64FirstAddress <= UINT64_C(0x00007fffffffffff))
2023	iLast = X86_PG_AMD64_ENTRIES / 2 - 1;
2024	else if (pState->u64LastAddress >= UINT64_C(0xffff800000000000))
2025	iFirst = X86_PG_AMD64_ENTRIES / 2;
2026	else
2027	iFirst = X86_PG_AMD64_ENTRIES; /* neither address is canonical */
2028
2029	for (uint32_t i = iFirst; i <= iLast; i++)
2030	{
2031	X86PML4E Pml4e = pPML4->a[i];
2032	if (Pml4e.n.u1Present)
2033	{
2034	pState->u64Address = ((uint64_t)i << X86_PML4_SHIFT)
2035	\| (i >= RT_ELEMENTS(pPML4->a) / 2 ? UINT64_C(0xffff000000000000) : 0);
2036	pState->pHlp->pfnPrintf(pState->pHlp, /P R S A D G WT CD AT NX 4M a p ? /
2037	"%016llx 0 \| P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx",
2038	pState->u64Address,
2039	Pml4e.n.u1Write ? 'W' : 'R',
2040	Pml4e.n.u1User ? 'U' : 'S',
2041	Pml4e.n.u1Accessed ? 'A' : '-',
2042	Pml4e.n.u3Reserved & 1 ? '?' : '.', /* ignored */
2043	Pml4e.n.u3Reserved & 4 ? '!' : '.', /* mbz */
2044	Pml4e.n.u1WriteThru ? "WT" : "--",
2045	Pml4e.n.u1CacheDisable ? "CD" : "--",
2046	Pml4e.n.u3Reserved & 2 ? "!" : "..",/* mbz */
2047	Pml4e.n.u1NoExecute ? "NX" : "--",
2048	Pml4e.u & RT_BIT_64(9) ? '1' : '0',
2049	Pml4e.u & RT_BIT_64(10) ? '1' : '0',
2050	Pml4e.u & RT_BIT_64(11) ? '1' : '0',
2051	Pml4e.u & X86_PML4E_PG_MASK);
2052	if (pState->fDumpPageInfo)
2053	pgmR3DumpHierarchyGstPageInfo(pState, Pml4e.u & X86_PML4E_PG_MASK, _4K);
2054	pgmR3DumpHierarchyGstCheckReservedHighBits(pState, Pml4e.u);
2055	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
2056
2057	if (cMaxDepth)
2058	{
2059	int rc2 = pgmR3DumpHierarchyGstPaePDPT(pState, Pml4e.u & X86_PML4E_PG_MASK, cMaxDepth);
2060	if (rc2 < rc && RT_SUCCESS(rc))
2061	rc = rc2;
2062	}
2063	else
2064	pState->cLeaves++;
2065	}
2066	}
2067
2068	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
2069	return rc;
2070	}
2071
2072
2073	/**
2074	* Dumps a 32-bit shadow page table.
2075	*
2076	* @returns VBox status code (VINF_SUCCESS).
2077	* @param pState The dumper state.
2078	* @param GCPhys The physical address of the table.
2079	*/
2080	static int pgmR3DumpHierarchyGst32BitPT(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS GCPhys)
2081	{
2082	PCX86PT pPT;
2083	PGMPAGEMAPLOCK Lock;
2084	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page table", (void const **)&pPT, &Lock);
2085	if (RT_FAILURE(rc))
2086	return rc;
2087
2088	uint32_t iFirst, iLast;
2089	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PT_SHIFT, X86_PG_ENTRIES, &iFirst, &iLast);
2090	for (uint32_t i = iFirst; i <= iLast; i++)
2091	{
2092	X86PTE Pte = pPT->a[i];
2093	if (Pte.n.u1Present)
2094	{
2095	pState->u64Address = u64BaseAddress + (i << X86_PT_SHIFT);
2096	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d /
2097	"%08llx 1 \| P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x",
2098	pState->u64Address,
2099	Pte.n.u1Write ? 'W' : 'R',
2100	Pte.n.u1User ? 'U' : 'S',
2101	Pte.n.u1Accessed ? 'A' : '-',
2102	Pte.n.u1Dirty ? 'D' : '-',
2103	Pte.n.u1Global ? 'G' : '-',
2104	Pte.n.u1WriteThru ? "WT" : "--",
2105	Pte.n.u1CacheDisable ? "CD" : "--",
2106	Pte.n.u1PAT ? "AT" : "--",
2107	Pte.u & RT_BIT_32(9) ? '1' : '0',
2108	Pte.u & RT_BIT_32(10) ? '1' : '0',
2109	Pte.u & RT_BIT_32(11) ? '1' : '0',
2110	Pte.u & X86_PDE_PG_MASK);
2111	if (pState->fDumpPageInfo)
2112	pgmR3DumpHierarchyGstPageInfo(pState, Pte.u & X86_PDE_PG_MASK, _4K);
2113	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
2114	}
2115	}
2116
2117	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
2118	return VINF_SUCCESS;
2119	}
2120
2121
2122	/**
2123	* Dumps a 32-bit shadow page directory and page tables.
2124	*
2125	* @returns VBox status code (VINF_SUCCESS).
2126	* @param pState The dumper state.
2127	* @param GCPhys The physical address of the table.
2128	* @param cMaxDepth The maximum depth.
2129	*/
2130	static int pgmR3DumpHierarchyGst32BitPD(PPGMR3DUMPHIERARCHYSTATE pState, RTHCPHYS GCPhys, unsigned cMaxDepth)
2131	{
2132	if (pState->u64Address >= _4G)
2133	return VINF_SUCCESS;
2134
2135	PCX86PD pPD;
2136	PGMPAGEMAPLOCK Lock;
2137	int rc = pgmR3DumpHierarchyGstMapPage(pState, GCPhys, "Page directory", (void const **)&pPD, &Lock);
2138	if (RT_FAILURE(rc))
2139	return rc;
2140
2141	Assert(cMaxDepth > 0);
2142	cMaxDepth--;
2143
2144	uint32_t iFirst, iLast;
2145	uint64_t u64BaseAddress = pgmR3DumpHierarchyCalcRange(pState, X86_PD_SHIFT, X86_PG_ENTRIES, &iFirst, &iLast);
2146	for (uint32_t i = iFirst; i <= iLast; i++)
2147	{
2148	X86PDE Pde = pPD->a[i];
2149	if (Pde.n.u1Present)
2150	{
2151	pState->u64Address = (uint32_t)i << X86_PD_SHIFT;
2152	if (Pde.b.u1Size && pState->fPse)
2153	{
2154	uint64_t u64Phys = ((uint64_t)(Pde.u & X86_PDE4M_PG_HIGH_MASK) << X86_PDE4M_PG_HIGH_SHIFT)
2155	\| (Pde.u & X86_PDE4M_PG_MASK);
2156	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d phys /
2157	"%08llx 0 \| P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08llx",
2158	pState->u64Address,
2159	Pde.b.u1Write ? 'W' : 'R',
2160	Pde.b.u1User ? 'U' : 'S',
2161	Pde.b.u1Accessed ? 'A' : '-',
2162	Pde.b.u1Dirty ? 'D' : '-',
2163	Pde.b.u1Global ? 'G' : '-',
2164	Pde.b.u1WriteThru ? "WT" : "--",
2165	Pde.b.u1CacheDisable ? "CD" : "--",
2166	Pde.b.u1PAT ? "AT" : "--",
2167	Pde.u & RT_BIT_32(9) ? '1' : '0',
2168	Pde.u & RT_BIT_32(10) ? '1' : '0',
2169	Pde.u & RT_BIT_32(11) ? '1' : '0',
2170	u64Phys);
2171	if (pState->fDumpPageInfo)
2172	pgmR3DumpHierarchyGstPageInfo(pState, u64Phys, _4M);
2173	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
2174	pState->cLeaves++;
2175	}
2176	else
2177	{
2178	pState->pHlp->pfnPrintf(pState->pHlp,/P R S A D G WT CD AT NX 4M a m d phys /
2179	"%08llx 0 \| P %c %c %c %c %c %s %s .. .. .. %c%c%c %08x",
2180	pState->u64Address,
2181	Pde.n.u1Write ? 'W' : 'R',
2182	Pde.n.u1User ? 'U' : 'S',
2183	Pde.n.u1Accessed ? 'A' : '-',
2184	Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
2185	Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
2186	Pde.n.u1WriteThru ? "WT" : "--",
2187	Pde.n.u1CacheDisable ? "CD" : "--",
2188	Pde.u & RT_BIT_32(9) ? '1' : '0',
2189	Pde.u & RT_BIT_32(10) ? '1' : '0',
2190	Pde.u & RT_BIT_32(11) ? '1' : '0',
2191	Pde.u & X86_PDE_PG_MASK);
2192	if (pState->fDumpPageInfo)
2193	pgmR3DumpHierarchyGstPageInfo(pState, Pde.u & X86_PDE_PG_MASK, _4K);
2194	pState->pHlp->pfnPrintf(pState->pHlp, "\n");
2195
2196	if (cMaxDepth)
2197	{
2198	int rc2 = pgmR3DumpHierarchyGst32BitPT(pState, Pde.u & X86_PDE_PG_MASK);
2199	if (rc2 < rc && RT_SUCCESS(rc))
2200	rc = rc2;
2201	}
2202	else
2203	pState->cLeaves++;
2204	}
2205	}
2206	}
2207
2208	PGMPhysReleasePageMappingLock(pState->pVM, &Lock);
2209	return rc;
2210	}
2211
2212
2213	/**
2214	* Internal worker that initiates the actual dump.
2215	*
2216	* @returns VBox status code.
2217	* @param pState The dumper state.
2218	* @param cr3 The CR3 value.
2219	* @param cMaxDepth The max depth.
2220	*/
2221	static int pgmR3DumpHierarchyGstDoIt(PPGMR3DUMPHIERARCHYSTATE pState, uint64_t cr3, unsigned cMaxDepth)
2222	{
2223	int rc;
2224	unsigned const cch = pState->cchAddress;
2225	uint64_t const cr3Mask = pState->fEpt ? X86_CR3_AMD64_PAGE_MASK
2226	: pState->fLme ? X86_CR3_AMD64_PAGE_MASK
2227	: pState->fPae ? X86_CR3_PAE_PAGE_MASK
2228	: X86_CR3_PAGE_MASK;
2229	if (pState->fPrintCr3)
2230	{
2231	const char * const pszMode = pState->fEpt ? "Extended Page Tables"
2232	: pState->fLme ? "Long Mode"
2233	: pState->fPae ? "PAE Mode"
2234	: pState->fPse ? "32-bit w/ PSE"
2235	: "32-bit";
2236	pState->pHlp->pfnPrintf(pState->pHlp, "cr3=%0*llx", cch, cr3);
2237	if (pState->fDumpPageInfo)
2238	pgmR3DumpHierarchyGstPageInfo(pState, cr3 & X86_CR3_AMD64_PAGE_MASK, _4K);
2239	pState->pHlp->pfnPrintf(pState->pHlp, " %s%s%s\n",
2240	pszMode,
2241	pState->fNp ? " + Nested Paging" : "",
2242	pState->fNxe ? " + NX" : "");
2243	}
2244
2245
2246	if (pState->fEpt)
2247	{
2248	if (pState->fPrintHeader)
2249	pState->pHlp->pfnPrintf(pState->pHlp,
2250	"%-*s R - Readable\n"
2251	"%-*s \| W - Writeable\n"
2252	"%-*s \| \| X - Executable\n"
2253	"%-*s \| \| \| EMT - EPT memory type\n"
2254	"%-*s \| \| \| \| PAT - Ignored PAT?\n"
2255	"%-*s \| \| \| \| \| AVL1 - 4 available bits\n"
2256	"%-*s \| \| \| \| \| \| AVL2 - 12 available bits\n"
2257	"%-*s Level \| \| \| \| \| \| \| page \n"
2258	/* xxxx n **** R W X EMT PAT AVL1 AVL2 xxxxxxxxxxxxx
2259	R W X 7 0 f fff 0123456701234567 */
2260	,
2261	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
2262
2263	pState->pHlp->pfnPrintf(pState->pHlp, "EPT dumping is not yet implemented, sorry.\n");
2264	/** @todo implemented EPT dumping. */
2265	rc = VERR_NOT_IMPLEMENTED;
2266	}
2267	else
2268	{
2269	if (pState->fPrintHeader)
2270	pState->pHlp->pfnPrintf(pState->pHlp,
2271	"%-*s P - Present\n"
2272	"%-*s \| R/W - Read (0) / Write (1)\n"
2273	"%-*s \| \| U/S - User (1) / Supervisor (0)\n"
2274	"%-*s \| \| \| A - Accessed\n"
2275	"%-*s \| \| \| \| D - Dirty\n"
2276	"%-*s \| \| \| \| \| G - Global\n"
2277	"%-*s \| \| \| \| \| \| WT - Write thru\n"
2278	"%-*s \| \| \| \| \| \| \| CD - Cache disable\n"
2279	"%-*s \| \| \| \| \| \| \| \| AT - Attribute table (PAT)\n"
2280	"%-*s \| \| \| \| \| \| \| \| \| NX - No execute (K8)\n"
2281	"%-*s \| \| \| \| \| \| \| \| \| \| 4K/4M/2M - Page size.\n"
2282	"%-*s \| \| \| \| \| \| \| \| \| \| \| AVL - 3 available bits.\n"
2283	"%-*s Level \| \| \| \| \| \| \| \| \| \| \| \| Page\n"
2284	/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
2285	- W U - - - -- -- -- -- -- 010 */
2286	,
2287	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
2288	cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
2289	if (pState->fLme)
2290	rc = pgmR3DumpHierarchyGstPaePML4(pState, cr3 & cr3Mask, cMaxDepth);
2291	else if (pState->fPae)
2292	rc = pgmR3DumpHierarchyGstPaePDPT(pState, cr3 & cr3Mask, cMaxDepth);
2293	else
2294	rc = pgmR3DumpHierarchyGst32BitPD(pState, cr3 & cr3Mask, cMaxDepth);
2295	}
2296
2297	if (!pState->cLeaves)
2298	pState->pHlp->pfnPrintf(pState->pHlp, "not present\n");
2299	return rc;
2300	}
2301
2302
2303	/**
2304	* dbgfR3PagingDumpEx worker.
2305	*
2306	* @returns VBox status code.
2307	* @param pVM The VM handle.
2308	* @param cr3 The CR3 register value.
2309	* @param fFlags The flags, DBGFPGDMP_FLAGS_XXX.
2310	* @param FirstAddr The start address.
2311	* @param LastAddr The address to stop after.
2312	* @param cMaxDepth The max depth.
2313	* @param pHlp The output callbacks. Defaults to log if NULL.
2314	*
2315	* @internal
2316	*/
2317	VMMR3_INT_DECL(int) PGMR3DumpHierarchyGst(PVM pVM, uint64_t cr3, uint32_t fFlags, RTGCPTR FirstAddr, RTGCPTR LastAddr,
2318	uint32_t cMaxDepth, PCDBGFINFOHLP pHlp)
2319	{
2320	/* Minimal validation as we're only supposed to service DBGF. */
2321	AssertReturn(~(fFlags & ~DBGFPGDMP_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
2322	AssertReturn(!(fFlags & (DBGFPGDMP_FLAGS_CURRENT_MODE \| DBGFPGDMP_FLAGS_CURRENT_CR3)), VERR_INVALID_PARAMETER);
2323	AssertReturn(fFlags & DBGFPGDMP_FLAGS_GUEST, VERR_INVALID_PARAMETER);
2324
2325	PGMR3DUMPHIERARCHYSTATE State;
2326	pgmR3DumpHierarchyInitState(&State, pVM, fFlags, FirstAddr, LastAddr, pHlp);
2327	return pgmR3DumpHierarchyGstDoIt(&State, cr3, cMaxDepth);
2328	}
2329

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source: vbox/trunk/src/VBox/VMM/PGMDbg.cpp@ 34244

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