DBGFInternal.h@ 100111

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1	/* $Id: DBGFInternal.h 98103 2023-01-17 14:15:46Z vboxsync $ */
2	/** @file
3	* DBGF - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	#ifndef VMM_INCLUDED_SRC_include_DBGFInternal_h
29	#define VMM_INCLUDED_SRC_include_DBGFInternal_h
30	#ifndef RT_WITHOUT_PRAGMA_ONCE
31	# pragma once
32	#endif
33
34	#include <VBox/cdefs.h>
35	#ifdef IN_RING3
36	# include <VBox/dis.h>
37	#endif
38	#include <VBox/types.h>
39	#include <iprt/semaphore.h>
40	#include <iprt/critsect.h>
41	#include <iprt/string.h>
42	#include <iprt/avl.h>
43	#include <iprt/dbg.h>
44	#include <iprt/tracelog.h>
45	#include <VBox/vmm/dbgf.h>
46
47
48
49	/** @defgroup grp_dbgf_int Internals
50	* @ingroup grp_dbgf
51	* @internal
52	* @{
53	*/
54
55	/** The maximum tracer instance (total) size, ring-0/raw-mode capable tracers. */
56	#define DBGF_MAX_TRACER_INSTANCE_SIZE _512M
57	/** The maximum tracers instance (total) size, ring-3 only tracers. */
58	#define DBGF_MAX_TRACER_INSTANCE_SIZE_R3 _1G
59	/** Event ringbuffer header size. */
60	#define DBGF_TRACER_EVT_HDR_SZ (32)
61	/** Event ringbuffer payload size. */
62	#define DBGF_TRACER_EVT_PAYLOAD_SZ (32)
63	/** Event ringbuffer entry size. */
64	#define DBGF_TRACER_EVT_SZ (DBGF_TRACER_EVT_HDR_SZ + DBGF_TRACER_EVT_PAYLOAD_SZ)
65
66
67	/** @name Global breakpoint table handling defines.
68	* @{ */
69	/** Maximum number of breakpoint owners supported (power of two). */
70	#define DBGF_BP_OWNER_COUNT_MAX _32K
71	/** Maximum number of breakpoints supported (power of two). */
72	#define DBGF_BP_COUNT_MAX _1M
73	/** Size of a single breakpoint structure in bytes. */
74	#define DBGF_BP_ENTRY_SZ 64
75	/** Number of breakpoints handled in one chunk (power of two). */
76	#define DBGF_BP_COUNT_PER_CHUNK _64K
77	/** Number of chunks required to support all breakpoints. */
78	#define DBGF_BP_CHUNK_COUNT (DBGF_BP_COUNT_MAX / DBGF_BP_COUNT_PER_CHUNK)
79	/** Maximum number of instruction bytes when executing breakpointed instructions. */
80	#define DBGF_BP_INSN_MAX 16
81	/** @} */
82
83	/** @name L2 lookup table limit defines.
84	* @{ */
85	/** Maximum number of entreis in the L2 lookup table. */
86	#define DBGF_BP_L2_TBL_ENTRY_COUNT_MAX _512K
87	/** Number of L2 entries handled in one chunk. */
88	#define DBGF_BP_L2_TBL_ENTRIES_PER_CHUNK _64K
89	/** Number of chunks required tp support all L2 lookup table entries. */
90	#define DBGF_BP_L2_TBL_CHUNK_COUNT (DBGF_BP_L2_TBL_ENTRY_COUNT_MAX / DBGF_BP_L2_TBL_ENTRIES_PER_CHUNK)
91	/** @} */
92
93
94	/*******************************************************************************
95	* Structures and Typedefs *
96	*******************************************************************************/
97
98	/**
99	* Event entry types.
100	*/
101	typedef enum DBGFTRACEREVT
102	{
103	/** Invalid type. */
104	DBGFTRACEREVT_INVALID = 0,
105	/** Register event source event. */
106	DBGFTRACEREVT_SRC_REGISTER,
107	/** Deregister event source event. */
108	DBGFTRACEREVT_SRC_DEREGISTER,
109	/** MMIO region create event. */
110	DBGFTRACEREVT_MMIO_REGION_CREATE,
111	/** MMIO map region event. */
112	DBGFTRACEREVT_MMIO_MAP,
113	/** MMIO unmap region event. */
114	DBGFTRACEREVT_MMIO_UNMAP,
115	/** MMIO read event. */
116	DBGFTRACEREVT_MMIO_READ,
117	/** MMIO write event. */
118	DBGFTRACEREVT_MMIO_WRITE,
119	/** MMIO fill event. */
120	DBGFTRACEREVT_MMIO_FILL,
121	/** I/O port region create event. */
122	DBGFTRACEREVT_IOPORT_REGION_CREATE,
123	/** I/O port map event. */
124	DBGFTRACEREVT_IOPORT_MAP,
125	/** I/O port unmap event. */
126	DBGFTRACEREVT_IOPORT_UNMAP,
127	/** I/O port read event. */
128	DBGFTRACEREVT_IOPORT_READ,
129	/** I/O port read string event. */
130	DBGFTRACEREVT_IOPORT_READ_STR,
131	/** I/O port write event. */
132	DBGFTRACEREVT_IOPORT_WRITE,
133	/** I/O port write string event. */
134	DBGFTRACEREVT_IOPORT_WRITE_STR,
135	/** IRQ event. */
136	DBGFTRACEREVT_IRQ,
137	/** I/O APIC MSI event. */
138	DBGFTRACEREVT_IOAPIC_MSI,
139	/** Read from guest physical memory. */
140	DBGFTRACEREVT_GCPHYS_READ,
141	/** Write to guest physical memory. */
142	DBGFTRACEREVT_GCPHYS_WRITE,
143	/** 32bit hack. */
144	DBGFTRACEREVT_32BIT_HACK
145	} DBGFTRACEREVT;
146	/** Pointer to a trace event entry type. */
147	typedef DBGFTRACEREVT *PDBGFTRACEREVT;
148
149
150	/**
151	* MMIO region create event.
152	*/
153	typedef struct DBGFTRACEREVTMMIOCREATE
154	{
155	/** Unique region handle for the event source. */
156	uint64_t hMmioRegion;
157	/** Size of the region in bytes. */
158	RTGCPHYS cbRegion;
159	/** IOM flags passed to the region. */
160	uint32_t fIomFlags;
161	/** The PCI region for a PCI device. */
162	uint32_t iPciRegion;
163	/** Padding to 32byte. */
164	uint64_t u64Pad0;
165	} DBGFTRACEREVTMMIOCREATE;
166	/** Pointer to a MMIO map event. */
167	typedef DBGFTRACEREVTMMIOCREATE *PDBGFTRACEREVTMMIOCREATE;
168	/** Pointer to a const MMIO map event. */
169	typedef const DBGFTRACEREVTMMIOCREATE *PCDBGFTRACEREVTMMIOCREATE;
170
171	AssertCompileSize(DBGFTRACEREVTMMIOCREATE, DBGF_TRACER_EVT_PAYLOAD_SZ);
172
173
174	/**
175	* MMIO region map event.
176	*/
177	typedef struct DBGFTRACEREVTMMIOMAP
178	{
179	/** Unique region handle for the event source. */
180	uint64_t hMmioRegion;
181	/** The base guest physical address of the MMIO region. */
182	RTGCPHYS GCPhysMmioBase;
183	/** Padding to 32byte. */
184	uint64_t au64Pad0[2];
185	} DBGFTRACEREVTMMIOMAP;
186	/** Pointer to a MMIO map event. */
187	typedef DBGFTRACEREVTMMIOMAP *PDBGFTRACEREVTMMIOMAP;
188	/** Pointer to a const MMIO map event. */
189	typedef const DBGFTRACEREVTMMIOMAP *PCDBGFTRACEREVTMMIOMAP;
190
191	AssertCompileSize(DBGFTRACEREVTMMIOMAP, DBGF_TRACER_EVT_PAYLOAD_SZ);
192
193
194	/**
195	* MMIO region unmap event.
196	*/
197	typedef struct DBGFTRACEREVTMMIOUNMAP
198	{
199	/** Unique region handle for the event source. */
200	uint64_t hMmioRegion;
201	/** Padding to 32byte. */
202	uint64_t au64Pad0[3];
203	} DBGFTRACEREVTMMIOUNMAP;
204	/** Pointer to a MMIO map event. */
205	typedef DBGFTRACEREVTMMIOUNMAP *PDBGFTRACEREVTMMIOUNMAP;
206	/** Pointer to a const MMIO map event. */
207	typedef const DBGFTRACEREVTMMIOUNMAP *PCDBGFTRACEREVTMMIOUNMAP;
208
209	AssertCompileSize(DBGFTRACEREVTMMIOUNMAP, DBGF_TRACER_EVT_PAYLOAD_SZ);
210
211
212	/**
213	* MMIO event.
214	*/
215	typedef struct DBGFTRACEREVTMMIO
216	{
217	/** Unique region handle for the event source. */
218	uint64_t hMmioRegion;
219	/** Offset into the region the access happened. */
220	RTGCPHYS offMmio;
221	/** Number of bytes transfered (the direction is in the event header). */
222	uint64_t cbXfer;
223	/** The value transfered. */
224	uint64_t u64Val;
225	} DBGFTRACEREVTMMIO;
226	/** Pointer to a MMIO event. */
227	typedef DBGFTRACEREVTMMIO *PDBGFTRACEREVTMMIO;
228	/** Pointer to a const MMIO event. */
229	typedef const DBGFTRACEREVTMMIO *PCDBGFTRACEREVTMMIO;
230
231	AssertCompileSize(DBGFTRACEREVTMMIO, DBGF_TRACER_EVT_PAYLOAD_SZ);
232
233
234	/**
235	* MMIO fill event.
236	*/
237	typedef struct DBGFTRACEREVTMMIOFILL
238	{
239	/** Unique region handle for the event source. */
240	uint64_t hMmioRegion;
241	/** Offset into the region the access happened. */
242	RTGCPHYS offMmio;
243	/** Item size in bytes. */
244	uint32_t cbItem;
245	/** Amount of items being filled. */
246	uint32_t cItems;
247	/** The fill value. */
248	uint32_t u32Item;
249	/** Padding to 32bytes. */
250	uint32_t u32Pad0;
251	} DBGFTRACEREVTMMIOFILL;
252	/** Pointer to a MMIO event. */
253	typedef DBGFTRACEREVTMMIOFILL *PDBGFTRACEREVTMMIOFILL;
254	/** Pointer to a const MMIO event. */
255	typedef const DBGFTRACEREVTMMIOFILL *PCDBGFTRACEREVTMMIOFILL;
256
257	AssertCompileSize(DBGFTRACEREVTMMIOFILL, DBGF_TRACER_EVT_PAYLOAD_SZ);
258
259
260	/**
261	* I/O port region create event.
262	*/
263	typedef struct DBGFTRACEREVTIOPORTCREATE
264	{
265	/** Unique I/O port region handle for the event source. */
266	uint64_t hIoPorts;
267	/** Number of ports. */
268	RTIOPORT cPorts;
269	/** Padding. */
270	uint16_t u16Pad0;
271	/** IOM flags passed to the region. */
272	uint32_t fIomFlags;
273	/** The PCI region for a PCI device. */
274	uint32_t iPciRegion;
275	/** Padding to 32byte. */
276	uint32_t u32Pad0[3];
277	} DBGFTRACEREVTIOPORTCREATE;
278	/** Pointer to a MMIO map event. */
279	typedef DBGFTRACEREVTIOPORTCREATE *PDBGFTRACEREVTIOPORTCREATE;
280	/** Pointer to a const MMIO map event. */
281	typedef const DBGFTRACEREVTIOPORTCREATE *PCDBGFTRACEREVTIOPORTCREATE;
282
283	AssertCompileSize(DBGFTRACEREVTIOPORTCREATE, DBGF_TRACER_EVT_PAYLOAD_SZ);
284
285
286	/**
287	* I/O port region map event.
288	*/
289	typedef struct DBGFTRACEREVTIOPORTMAP
290	{
291	/** Unique I/O port region handle for the event source. */
292	uint64_t hIoPorts;
293	/** The base I/O port for the region. */
294	RTIOPORT IoPortBase;
295	/** Padding to 32byte. */
296	uint16_t au16Pad0[11];
297	} DBGFTRACEREVTIOPORTMAP;
298	/** Pointer to a MMIO map event. */
299	typedef DBGFTRACEREVTIOPORTMAP *PDBGFTRACEREVTIOPORTMAP;
300	/** Pointer to a const MMIO map event. */
301	typedef const DBGFTRACEREVTIOPORTMAP *PCDBGFTRACEREVTIOPORTMAP;
302
303	AssertCompileSize(DBGFTRACEREVTIOPORTMAP, DBGF_TRACER_EVT_PAYLOAD_SZ);
304
305
306	/**
307	* MMIO region unmap event.
308	*/
309	typedef struct DBGFTRACEREVTIOPORTUNMAP
310	{
311	/** Unique region handle for the event source. */
312	uint64_t hIoPorts;
313	/** Padding to 32byte. */
314	uint64_t au64Pad0[3];
315	} DBGFTRACEREVTIOPORTUNMAP;
316	/** Pointer to a MMIO map event. */
317	typedef DBGFTRACEREVTIOPORTUNMAP *PDBGFTRACEREVTIOPORTUNMAP;
318	/** Pointer to a const MMIO map event. */
319	typedef const DBGFTRACEREVTIOPORTUNMAP *PCDBGFTRACEREVTIOPORTUNMAP;
320
321	AssertCompileSize(DBGFTRACEREVTIOPORTUNMAP, DBGF_TRACER_EVT_PAYLOAD_SZ);
322
323
324	/**
325	* I/O port event.
326	*/
327	typedef struct DBGFTRACEREVTIOPORT
328	{
329	/** Unique region handle for the event source. */
330	uint64_t hIoPorts;
331	/** Offset into the I/O port region. */
332	RTIOPORT offPort;
333	/** 8 byte alignment. */
334	uint8_t abPad0[6];
335	/** Number of bytes transfered (the direction is in the event header). */
336	uint64_t cbXfer;
337	/** The value transfered. */
338	uint32_t u32Val;
339	/** Padding to 32bytes. */
340	uint8_t abPad1[4];
341	} DBGFTRACEREVTIOPORT;
342	/** Pointer to a MMIO event. */
343	typedef DBGFTRACEREVTIOPORT *PDBGFTRACEREVTIOPORT;
344	/** Pointer to a const MMIO event. */
345	typedef const DBGFTRACEREVTIOPORT *PCDBGFTRACEREVTIOPORT;
346
347	AssertCompileSize(DBGFTRACEREVTIOPORT, DBGF_TRACER_EVT_PAYLOAD_SZ);
348
349
350	/**
351	* I/O port string event.
352	*/
353	typedef struct DBGFTRACEREVTIOPORTSTR
354	{
355	/** Unique region handle for the event source. */
356	uint64_t hIoPorts;
357	/** Item size in bytes. */
358	uint32_t cbItem;
359	/** Number of transfers requested - for writes this gives the amount of valid data following. */
360	uint32_t cTransfersReq;
361	/** Number of transfers done - for reads this gives the amount of valid data following. */
362	uint32_t cTransfersRet;
363	/** Offset into the I/O port region. */
364	RTIOPORT offPort;
365	/** Data being transfered. */
366	uint8_t abData[10];
367	} DBGFTRACEREVTIOPORTSTR;
368	/** Pointer to a MMIO event. */
369	typedef DBGFTRACEREVTIOPORTSTR *PDBGFTRACEREVTIOPORTSTR;
370	/** Pointer to a const MMIO event. */
371	typedef const DBGFTRACEREVTIOPORTSTR *PCDBGFTRACEREVTIOPORTSTR;
372
373	AssertCompileSize(DBGFTRACEREVTIOPORTSTR, DBGF_TRACER_EVT_PAYLOAD_SZ);
374
375
376	/**
377	* IRQ event.
378	*/
379	typedef struct DBGFTRACEREVTIRQ
380	{
381	/** The IRQ line. */
382	int32_t iIrq;
383	/** IRQ level flags. */
384	int32_t fIrqLvl;
385	/** Padding to 32bytes. */
386	uint32_t au32Pad0[6];
387	} DBGFTRACEREVTIRQ;
388	/** Pointer to a MMIO event. */
389	typedef DBGFTRACEREVTIRQ *PDBGFTRACEREVTIRQ;
390	/** Pointer to a const MMIO event. */
391	typedef const DBGFTRACEREVTIRQ *PCDBGFTRACEREVTIRQ;
392
393	AssertCompileSize(DBGFTRACEREVTIRQ, DBGF_TRACER_EVT_PAYLOAD_SZ);
394
395
396	/**
397	* I/O APIC MSI event.
398	*/
399	typedef struct DBGFTRACEREVTIOAPICMSI
400	{
401	/** The guest physical address being written. */
402	RTGCPHYS GCPhys;
403	/** The value being written. */
404	uint32_t u32Val;
405	/** Padding to 32bytes. */
406	uint32_t au32Pad0[5];
407	} DBGFTRACEREVTIOAPICMSI;
408	/** Pointer to a MMIO event. */
409	typedef DBGFTRACEREVTIOAPICMSI *PDBGFTRACEREVTIOAPICMSI;
410	/** Pointer to a const MMIO event. */
411	typedef const DBGFTRACEREVTIOAPICMSI *PCDBGFTRACEREVTIOAPICMSI;
412
413	AssertCompileSize(DBGFTRACEREVTIOAPICMSI, DBGF_TRACER_EVT_PAYLOAD_SZ);
414
415
416	/**
417	* Guest physical memory transfer.
418	*/
419	typedef struct DBGFTRACEREVTGCPHYS
420	{
421	/** Guest physical address of the access. */
422	RTGCPHYS GCPhys;
423	/** Number of bytes transfered (the direction is in the event header).
424	* If the number is small enough to fit into the remaining space of the entry
425	* it is stored here, otherwise it will be stored in the next entry (and following
426	* entries). */
427	uint64_t cbXfer;
428	/** Guest data being transfered. */
429	uint8_t abData[16];
430	} DBGFTRACEREVTGCPHYS;
431	/** Pointer to a guest physical memory transfer event. */
432	typedef DBGFTRACEREVTGCPHYS *PDBGFTRACEREVTGCPHYS;
433	/** Pointer to a const uest physical memory transfer event. */
434	typedef const DBGFTRACEREVTGCPHYS *PCDBGFTRACEREVTGCPHYS;
435
436	AssertCompileSize(DBGFTRACEREVTGCPHYS, DBGF_TRACER_EVT_PAYLOAD_SZ);
437
438
439	/**
440	* A trace event header in the shared ring buffer.
441	*/
442	typedef struct DBGFTRACEREVTHDR
443	{
444	/** Event ID. */
445	volatile uint64_t idEvt;
446	/** The previous event ID this one links to,
447	* DBGF_TRACER_EVT_HDR_ID_INVALID if it links to no other event. */
448	uint64_t idEvtPrev;
449	/** Event source. */
450	DBGFTRACEREVTSRC hEvtSrc;
451	/** The event entry type. */
452	DBGFTRACEREVT enmEvt;
453	/** Flags for this event. */
454	uint32_t fFlags;
455	} DBGFTRACEREVTHDR;
456	/** Pointer to a trace event header. */
457	typedef DBGFTRACEREVTHDR *PDBGFTRACEREVTHDR;
458	/** Pointer to a const trace event header. */
459	typedef const DBGFTRACEREVTHDR *PCDBGFTRACEREVTHDR;
460
461	AssertCompileSize(DBGFTRACEREVTHDR, DBGF_TRACER_EVT_HDR_SZ);
462
463	/** Invalid event ID, this is always set by the flush thread after processing one entry
464	* so the producers know when they are about to overwrite not yet processed entries in the ring buffer. */
465	#define DBGF_TRACER_EVT_HDR_ID_INVALID UINT64_C(0xffffffffffffffff)
466
467	/** The event came from R0. */
468	#define DBGF_TRACER_EVT_HDR_F_R0 RT_BIT(0)
469
470	/** Default event header tracer flags. */
471	#ifdef IN_RING0
472	# define DBGF_TRACER_EVT_HDR_F_DEFAULT DBGF_TRACER_EVT_HDR_F_R0
473	#else
474	# define DBGF_TRACER_EVT_HDR_F_DEFAULT (0)
475	#endif
476
477
478	/**
479	* Tracer instance data, shared structure.
480	*/
481	typedef struct DBGFTRACERSHARED
482	{
483	/** The global event ID counter, monotonically increasing.
484	* Accessed by all threads causing a trace event. */
485	volatile uint64_t idEvt;
486	/** The SUP event semaphore for poking the flush thread. */
487	SUPSEMEVENT hSupSemEvtFlush;
488	/** Ring buffer size. */
489	size_t cbRingBuf;
490	/** Flag whether there are events in the ring buffer to get processed. */
491	volatile bool fEvtsWaiting;
492	/** Flag whether the flush thread is actively running or was kicked. */
493	volatile bool fFlushThrdActive;
494	/** Padding to a 64byte alignment. */
495	uint8_t abAlignment0[32];
496	} DBGFTRACERSHARED;
497	/** Pointer to the shared tarcer instance data. */
498	typedef DBGFTRACERSHARED *PDBGFTRACERSHARED;
499
500	AssertCompileSizeAlignment(DBGFTRACERSHARED, 64);
501
502
503	/**
504	* Guest memory read/write data aggregation.
505	*/
506	typedef struct DBGFTRACERGCPHYSRWAGG
507	{
508	/** The event ID which started the aggregation (used for the group ID when writing out the event). */
509	uint64_t idEvtStart;
510	/** The previous event ID used to link all the chunks together. */
511	uint64_t idEvtPrev;
512	/** Number of bytes being transfered. */
513	size_t cbXfer;
514	/** Amount of data left to aggregate before it can be written. */
515	size_t cbLeft;
516	/** Amount of bytes allocated. */
517	size_t cbBufMax;
518	/** Offset into the buffer to write next. */
519	size_t offBuf;
520	/** Pointer to the allocated buffer. */
521	uint8_t *pbBuf;
522	} DBGFTRACERGCPHYSRWAGG;
523	/** Pointer to a guest memory read/write data aggregation structure. */
524	typedef DBGFTRACERGCPHYSRWAGG *PDBGFTRACERGCPHYSRWAGG;
525
526
527	/**
528	* Tracer instance data, ring-3
529	*/
530	typedef struct DBGFTRACERINSR3
531	{
532	/** Pointer to the next instance.
533	* (Head is pointed to by PDM::pTracerInstances.) */
534	R3PTRTYPE(struct DBGFTRACERINSR3 *) pNextR3;
535	/** R3 pointer to the VM this instance was created for. */
536	PVMR3 pVMR3;
537	/** Tracer instance number. */
538	uint32_t idTracer;
539	/** Flag whether the tracer has the R0 part enabled. */
540	bool fR0Enabled;
541	/** Flag whether the tracer flush thread should shut down. */
542	volatile bool fShutdown;
543	/** Padding. */
544	bool afPad0[6];
545	/** Next event source ID to return for a source registration. */
546	volatile DBGFTRACEREVTSRC hEvtSrcNext;
547	/** Pointer to the shared tracer instance data. */
548	R3PTRTYPE(PDBGFTRACERSHARED) pSharedR3;
549	/** The I/O thread writing the log from the shared event ringbuffer. */
550	RTTHREAD hThrdFlush;
551	/** Pointer to the start of the ring buffer. */
552	R3PTRTYPE(uint8_t *) pbRingBufR3;
553	/** The last processed event ID. */
554	uint64_t idEvtLast;
555	/** The trace log writer handle. */
556	RTTRACELOGWR hTraceLog;
557	/** Guest memory data aggregation structures to track
558	* currently pending guest memory reads/writes. */
559	DBGFTRACERGCPHYSRWAGG aGstMemRwData[10];
560	} DBGFTRACERINSR3;
561	/** Pointer to a tarcer instance - Ring-3 Ptr. */
562	typedef R3PTRTYPE(DBGFTRACERINSR3 *) PDBGFTRACERINSR3;
563
564
565	/**
566	* Private tracer instance data, ring-0
567	*/
568	typedef struct DBGFTRACERINSR0
569	{
570	/** Pointer to the VM this instance was created for. */
571	R0PTRTYPE(PGVM) pGVM;
572	/** The tracer instance memory. */
573	RTR0MEMOBJ hMemObj;
574	/** The ring-3 mapping object. */
575	RTR0MEMOBJ hMapObj;
576	/** Pointer to the shared tracer instance data. */
577	R0PTRTYPE(PDBGFTRACERSHARED) pSharedR0;
578	/** Size of the ring buffer in bytes, kept here so R3 can not manipulate the ring buffer
579	* size afterwards to trick R0 into doing something harmful. */
580	size_t cbRingBuf;
581	/** Pointer to the start of the ring buffer. */
582	R0PTRTYPE(uint8_t *) pbRingBufR0;
583	} DBGFTRACERINSR0;
584	/** Pointer to a VM - Ring-0 Ptr. */
585	typedef R0PTRTYPE(DBGFTRACERINSR0 *) PDBGFTRACERINSR0;
586
587
588	/**
589	* Private device instance data, raw-mode
590	*/
591	typedef struct DBGFTRACERINSRC
592	{
593	/** Pointer to the VM this instance was created for. */
594	RGPTRTYPE(PVM) pVMRC;
595	} DBGFTRACERINSRC;
596
597
598	#ifdef IN_RING3
599	DECLHIDDEN(int) dbgfTracerR3EvtPostSingle(PVMCC pVM, PDBGFTRACERINSCC pThisCC, DBGFTRACEREVTSRC hEvtSrc,
600	DBGFTRACEREVT enmTraceEvt, const void *pvEvtDesc, size_t cbEvtDesc,
601	uint64_t *pidEvt);
602	#endif
603
604	/** VMM Debugger Command. */
605	typedef enum DBGFCMD
606	{
607	/** No command.
608	* This is assigned to the field by the emulation thread after
609	* a command has been completed. */
610	DBGFCMD_NO_COMMAND = 0,
611	/** Halt the VM. */
612	DBGFCMD_HALT,
613	/** Resume execution. */
614	DBGFCMD_GO,
615	/** Single step execution - stepping into calls. */
616	DBGFCMD_SINGLE_STEP
617	} DBGFCMD;
618
619	/**
620	* VMM Debugger Command.
621	*/
622	typedef union DBGFCMDDATA
623	{
624	uint32_t uDummy;
625	} DBGFCMDDATA;
626	/** Pointer to DBGF Command Data. */
627	typedef DBGFCMDDATA *PDBGFCMDDATA;
628
629	/**
630	* Info type.
631	*/
632	typedef enum DBGFINFOTYPE
633	{
634	/** Invalid. */
635	DBGFINFOTYPE_INVALID = 0,
636	/** Device owner. */
637	DBGFINFOTYPE_DEV,
638	/** Driver owner. */
639	DBGFINFOTYPE_DRV,
640	/** Internal owner. */
641	DBGFINFOTYPE_INT,
642	/** External owner. */
643	DBGFINFOTYPE_EXT,
644	/** Device owner. */
645	DBGFINFOTYPE_DEV_ARGV,
646	/** Driver owner. */
647	DBGFINFOTYPE_DRV_ARGV,
648	/** USB device owner. */
649	DBGFINFOTYPE_USB_ARGV,
650	/** Internal owner, argv. */
651	DBGFINFOTYPE_INT_ARGV,
652	/** External owner. */
653	DBGFINFOTYPE_EXT_ARGV
654	} DBGFINFOTYPE;
655
656
657	/** Pointer to info structure. */
658	typedef struct DBGFINFO *PDBGFINFO;
659
660	#ifdef IN_RING3
661	/**
662	* Info structure.
663	*/
664	typedef struct DBGFINFO
665	{
666	/** The flags. */
667	uint32_t fFlags;
668	/** Owner type. */
669	DBGFINFOTYPE enmType;
670	/** Per type data. */
671	union
672	{
673	/** DBGFINFOTYPE_DEV */
674	struct
675	{
676	/** Device info handler function. */
677	PFNDBGFHANDLERDEV pfnHandler;
678	/** The device instance. */
679	PPDMDEVINS pDevIns;
680	} Dev;
681
682	/** DBGFINFOTYPE_DRV */
683	struct
684	{
685	/** Driver info handler function. */
686	PFNDBGFHANDLERDRV pfnHandler;
687	/** The driver instance. */
688	PPDMDRVINS pDrvIns;
689	} Drv;
690
691	/** DBGFINFOTYPE_INT */
692	struct
693	{
694	/** Internal info handler function. */
695	PFNDBGFHANDLERINT pfnHandler;
696	} Int;
697
698	/** DBGFINFOTYPE_EXT */
699	struct
700	{
701	/** External info handler function. */
702	PFNDBGFHANDLEREXT pfnHandler;
703	/** The user argument. */
704	void *pvUser;
705	} Ext;
706
707	/** DBGFINFOTYPE_DEV_ARGV */
708	struct
709	{
710	/** Device info handler function. */
711	PFNDBGFINFOARGVDEV pfnHandler;
712	/** The device instance. */
713	PPDMDEVINS pDevIns;
714	} DevArgv;
715
716	/** DBGFINFOTYPE_DRV_ARGV */
717	struct
718	{
719	/** Driver info handler function. */
720	PFNDBGFINFOARGVDRV pfnHandler;
721	/** The driver instance. */
722	PPDMDRVINS pDrvIns;
723	} DrvArgv;
724
725	/** DBGFINFOTYPE_USB_ARGV */
726	struct
727	{
728	/** Driver info handler function. */
729	PFNDBGFINFOARGVUSB pfnHandler;
730	/** The driver instance. */
731	PPDMUSBINS pUsbIns;
732	} UsbArgv;
733
734	/** DBGFINFOTYPE_INT_ARGV */
735	struct
736	{
737	/** Internal info handler function. */
738	PFNDBGFINFOARGVINT pfnHandler;
739	} IntArgv;
740
741	/** DBGFINFOTYPE_EXT_ARGV */
742	struct
743	{
744	/** External info handler function. */
745	PFNDBGFINFOARGVEXT pfnHandler;
746	/** The user argument. */
747	void *pvUser;
748	} ExtArgv;
749	} u;
750
751	/** Pointer to the description. */
752	const char *pszDesc;
753	/** Pointer to the next info structure. */
754	PDBGFINFO pNext;
755	/** The identifier name length. */
756	size_t cchName;
757	/** The identifier name. (Extends 'beyond' the struct as usual.) */
758	char szName[1];
759	} DBGFINFO;
760	#endif /* IN_RING3 */
761
762
763	#ifdef IN_RING3
764	/**
765	* Guest OS digger instance.
766	*/
767	typedef struct DBGFOS
768	{
769	/** Pointer to the registration record. */
770	PCDBGFOSREG pReg;
771	/** Pointer to the next OS we've registered. */
772	struct DBGFOS *pNext;
773	/** List of EMT interface wrappers. */
774	struct DBGFOSEMTWRAPPER *pWrapperHead;
775	/** The instance data (variable size). */
776	uint8_t abData[16];
777	} DBGFOS;
778	#endif
779	/** Pointer to guest OS digger instance. */
780	typedef struct DBGFOS *PDBGFOS;
781	/** Pointer to const guest OS digger instance. */
782	typedef struct DBGFOS const *PCDBGFOS;
783
784
785	/** An invalid breakpoint chunk ID. */
786	#define DBGF_BP_CHUNK_ID_INVALID UINT32_MAX
787	/** Generates a unique breakpoint handle from the given chunk ID and entry inside the chunk. */
788	#define DBGF_BP_HND_CREATE(a_idChunk, a_idEntry) RT_MAKE_U32(a_idEntry, a_idChunk);
789	/** Returns the chunk ID from the given breakpoint handle. */
790	#define DBGF_BP_HND_GET_CHUNK_ID(a_hBp) ((uint32_t)RT_HI_U16(a_hBp))
791	/** Returns the entry index inside a chunk from the given breakpoint handle. */
792	#define DBGF_BP_HND_GET_ENTRY(a_hBp) ((uint32_t)RT_LO_U16(a_hBp))
793
794
795	/** @name DBGF int3 L1 lookup table entry types.
796	* @{ */
797	/** No breakpoint handle assigned for this entry - special value which can be used
798	* for comparison with the whole entry. */
799	#define DBGF_BP_INT3_L1_ENTRY_TYPE_NULL UINT32_C(0)
800	/** Direct breakpoint handle. */
801	#define DBGF_BP_INT3_L1_ENTRY_TYPE_BP_HND 1
802	/** Index into the L2 tree denoting the root of a search tree. */
803	#define DBGF_BP_INT3_L1_ENTRY_TYPE_L2_IDX 2
804	/** @} */
805
806
807	/** Returns the entry type for the given L1 lookup table entry. */
808	#define DBGF_BP_INT3_L1_ENTRY_GET_TYPE(a_u32Entry) ((a_u32Entry) >> 28)
809	/** Returns a DBGF breakpoint handle from the given L1 lookup table entry,
810	* type needs to be DBGF_BP_INT3_L1_ENTRY_TYPE_BP_HND. */
811	#define DBGF_BP_INT3_L1_ENTRY_GET_BP_HND(a_u32Entry) ((DBGFBP)((a_u32Entry) & UINT32_C(0x0fffffff)))
812	/** Returns a L2 index from the given L1 lookup table entry,
813	* type needs to be DBGF_BP_INT3_L1_ENTRY_TYPE_L2_IDX. */
814	#define DBGF_BP_INT3_L1_ENTRY_GET_L2_IDX(a_u32Entry) ((a_u32Entry) & UINT32_C(0x0fffffff))
815	/** Creates a L1 entry value from the given type and data. */
816	#define DBGF_BP_INT3_L1_ENTRY_CREATE(a_Type, a_u32Data) ((((uint32_t)(a_Type)) << 28) \| ((a_u32Data) & UINT32_C(0x0fffffff)))
817	/** Creates a breakpoint handle type L1 lookup entry. */
818	#define DBGF_BP_INT3_L1_ENTRY_CREATE_BP_HND(a_hBp) DBGF_BP_INT3_L1_ENTRY_CREATE(DBGF_BP_INT3_L1_ENTRY_TYPE_BP_HND, a_hBp)
819	/** Creates a L2 index type L1 lookup entry. */
820	#define DBGF_BP_INT3_L1_ENTRY_CREATE_L2_IDX(a_idxL2) DBGF_BP_INT3_L1_ENTRY_CREATE(DBGF_BP_INT3_L1_ENTRY_TYPE_L2_IDX, a_idxL2)
821
822	/** Extracts the lowest bits from the given GC pointer used as an index into the L1 lookup table. */
823	#define DBGF_BP_INT3_L1_IDX_EXTRACT_FROM_ADDR(a_GCPtr) ((uint16_t)((a_GCPtr) & UINT16_C(0xffff)))
824
825	/**
826	* The internal breakpoint owner state, shared part.
827	*/
828	typedef struct DBGFBPOWNERINT
829	{
830	/** Reference counter indicating how man breakpoints use this owner currently. */
831	volatile uint32_t cRefs;
832	/** Padding. */
833	uint32_t u32Pad0;
834	/** Callback to call when a breakpoint has hit, Ring-3 Ptr. */
835	R3PTRTYPE(PFNDBGFBPHIT) pfnBpHitR3;
836	/** Callback to call when a I/O breakpoint has hit, Ring-3 Ptr. */
837	R3PTRTYPE(PFNDBGFBPIOHIT) pfnBpIoHitR3;
838	/** Padding. */
839	uint64_t u64Pad1;
840	} DBGFBPOWNERINT;
841	AssertCompileSize(DBGFBPOWNERINT, 32);
842	/** Pointer to an internal breakpoint owner state, shared part. */
843	typedef DBGFBPOWNERINT *PDBGFBPOWNERINT;
844	/** Pointer to a constant internal breakpoint owner state, shared part. */
845	typedef const DBGFBPOWNERINT *PCDBGFBPOWNERINT;
846
847
848	/**
849	* The internal breakpoint owner state, Ring-0 part.
850	*/
851	typedef struct DBGFBPOWNERINTR0
852	{
853	/** Reference counter indicating how man breakpoints use this owner currently. */
854	volatile uint32_t cRefs;
855	/** Padding. */
856	uint32_t u32Pad0;
857	/** Callback to call when a breakpoint has hit, Ring-0 Ptr. */
858	R0PTRTYPE(PFNDBGFBPHIT) pfnBpHitR0;
859	/** Callback to call when a I/O breakpoint has hit, Ring-0 Ptr. */
860	R0PTRTYPE(PFNDBGFBPIOHIT) pfnBpIoHitR0;
861	/** Padding. */
862	uint64_t u64Pad1;
863	} DBGFBPOWNERINTR0;
864	AssertCompileSize(DBGFBPOWNERINTR0, 32);
865	/** Pointer to an internal breakpoint owner state, shared part. */
866	typedef DBGFBPOWNERINTR0 *PDBGFBPOWNERINTR0;
867	/** Pointer to a constant internal breakpoint owner state, shared part. */
868	typedef const DBGFBPOWNERINTR0 *PCDBGFBPOWNERINTR0;
869
870
871	/**
872	* The internal breakpoint state, shared part.
873	*/
874	typedef struct DBGFBPINT
875	{
876	/** The publicly visible part. */
877	DBGFBPPUB Pub;
878	/** The opaque user argument for the owner callback, Ring-3 Ptr. */
879	R3PTRTYPE(void *) pvUserR3;
880	} DBGFBPINT;
881	AssertCompileSize(DBGFBPINT, DBGF_BP_ENTRY_SZ);
882	/** Pointer to an internal breakpoint state. */
883	typedef DBGFBPINT *PDBGFBPINT;
884	/** Pointer to an const internal breakpoint state. */
885	typedef const DBGFBPINT *PCDBGFBPINT;
886
887
888	/**
889	* The internal breakpoint state, R0 part.
890	*/
891	typedef struct DBGFBPINTR0
892	{
893	/** The owner handle. */
894	DBGFBPOWNER hOwner;
895	/** Flag whether the breakpoint is in use. */
896	bool fInUse;
897	/** Padding to 8 byte alignment. */
898	bool afPad[3];
899	/** Opaque user data for the owner callback, Ring-0 Ptr. */
900	R0PTRTYPE(void *) pvUserR0;
901	} DBGFBPINTR0;
902	AssertCompileMemberAlignment(DBGFBPINTR0, pvUserR0, 8);
903	AssertCompileSize(DBGFBPINTR0, 16);
904	/** Pointer to an internal breakpoint state - Ring-0 Ptr. */
905	typedef R0PTRTYPE(DBGFBPINTR0 *) PDBGFBPINTR0;
906
907
908	/**
909	* Hardware breakpoint state.
910	*/
911	typedef struct DBGFBPHW
912	{
913	/** The flat GC address of the breakpoint. */
914	RTGCUINTPTR GCPtr;
915	/** The breakpoint handle if active, NIL_DBGFBP if not in use. */
916	volatile DBGFBP hBp;
917	/** The access type (one of the X86_DR7_RW_* value). */
918	uint8_t fType;
919	/** The access size. */
920	uint8_t cb;
921	/** Flag whether the breakpoint is currently enabled. */
922	volatile bool fEnabled;
923	/** Padding. */
924	uint8_t bPad;
925	} DBGFBPHW;
926	AssertCompileSize(DBGFBPHW, 16);
927	/** Pointer to a hardware breakpoint state. */
928	typedef DBGFBPHW *PDBGFBPHW;
929	/** Pointer to a const hardware breakpoint state. */
930	typedef const DBGFBPHW *PCDBGFBPHW;
931
932
933	/**
934	* A breakpoint table chunk, ring-3 state.
935	*/
936	typedef struct DBGFBPCHUNKR3
937	{
938	/** Pointer to the R3 base of the chunk. */
939	R3PTRTYPE(PDBGFBPINT) pBpBaseR3;
940	/** Bitmap of free/occupied breakpoint entries. */
941	R3PTRTYPE(volatile void *) pbmAlloc;
942	/** Number of free breakpoints in the chunk. */
943	volatile uint32_t cBpsFree;
944	/** The chunk index this tracking structure refers to. */
945	uint32_t idChunk;
946	} DBGFBPCHUNKR3;
947	/** Pointer to a breakpoint table chunk - Ring-3 Ptr. */
948	typedef DBGFBPCHUNKR3 *PDBGFBPCHUNKR3;
949	/** Pointer to a const breakpoint table chunk - Ring-3 Ptr. */
950	typedef const DBGFBPCHUNKR3 *PCDBGFBPCHUNKR3;
951
952
953	/**
954	* Breakpoint table chunk, ring-0 state.
955	*/
956	typedef struct DBGFBPCHUNKR0
957	{
958	/** The chunks memory. */
959	RTR0MEMOBJ hMemObj;
960	/** The ring-3 mapping object. */
961	RTR0MEMOBJ hMapObj;
962	/** Pointer to the breakpoint entries base. */
963	R0PTRTYPE(PDBGFBPINT) paBpBaseSharedR0;
964	/** Pointer to the Ring-0 only part of the breakpoints. */
965	PDBGFBPINTR0 paBpBaseR0Only;
966	} DBGFBPCHUNKR0;
967	/** Pointer to a breakpoint table chunk - Ring-0 Ptr. */
968	typedef R0PTRTYPE(DBGFBPCHUNKR0 *) PDBGFBPCHUNKR0;
969
970
971	/**
972	* L2 lookup table entry.
973	*
974	* @remark The order of the members matters to be able to atomically update
975	* the AVL left/right pointers and depth with a single 64bit atomic write.
976	* @verbatim
977	* 7 6 5 4 3 2 1 0
978	* +--------+--------+--------+--------+--------+--------+--------+--------+
979	* \| hBp[15:0] \| GCPtrKey[63:16] \|
980	* +--------+--------+--------+--------+--------+--------+--------+--------+
981	* \| hBp[27:16] \| iDepth \| idxRight[21:0] \| idxLeft[21:0] \|
982	* +--------+--------+--------+--------+--------+--------+--------+--------+
983	* \_8 bits_/
984	* @endverbatim
985	*/
986	typedef struct DBGFBPL2ENTRY
987	{
988	/** The upper 6 bytes of the breakpoint address and the low 16 bits of the breakpoint handle. */
989	volatile uint64_t u64GCPtrKeyAndBpHnd1;
990	/** Left/right lower index, tree depth and remaining 12 bits of the breakpoint handle. */
991	volatile uint64_t u64LeftRightIdxDepthBpHnd2;
992	} DBGFBPL2ENTRY;
993	AssertCompileSize(DBGFBPL2ENTRY, 16);
994	/** Pointer to a L2 lookup table entry. */
995	typedef DBGFBPL2ENTRY *PDBGFBPL2ENTRY;
996	/** Pointer to a const L2 lookup table entry. */
997	typedef const DBGFBPL2ENTRY *PCDBGFBPL2ENTRY;
998
999	/** Extracts the part from the given GC pointer used as the key in the L2 binary search tree. */
1000	#define DBGF_BP_INT3_L2_KEY_EXTRACT_FROM_ADDR(a_GCPtr) ((uint64_t)((a_GCPtr) >> 16))
1001
1002	/** An invalid breakpoint chunk ID. */
1003	#define DBGF_BP_L2_IDX_CHUNK_ID_INVALID UINT32_MAX
1004	/** Generates a unique breakpoint handle from the given chunk ID and entry inside the chunk. */
1005	#define DBGF_BP_L2_IDX_CREATE(a_idChunk, a_idEntry) RT_MAKE_U32(a_idEntry, a_idChunk);
1006	/** Returns the chunk ID from the given breakpoint handle. */
1007	#define DBGF_BP_L2_IDX_GET_CHUNK_ID(a_idxL2) ((uint32_t)RT_HI_U16(a_idxL2))
1008	/** Returns the entry index inside a chunk from the given breakpoint handle. */
1009	#define DBGF_BP_L2_IDX_GET_ENTRY(a_idxL2) ((uint32_t)RT_LO_U16(a_idxL2))
1010
1011	/** Number of bits for the left/right index pointers. */
1012	#define DBGF_BP_L2_ENTRY_LEFT_RIGHT_IDX_BITS 22
1013	/** Special index value marking the end of a tree. */
1014	#define DBGF_BP_L2_ENTRY_IDX_END UINT32_C(0x3fffff)
1015	/** Number of bits to shift the breakpoint handle in the first part. */
1016	#define DBGF_BP_L2_ENTRY_BP_1ST_SHIFT 48
1017	/** Mask for the first part of the breakpoint handle. */
1018	#define DBGF_BP_L2_ENTRY_BP_1ST_MASK UINT32_C(0x0000ffff)
1019	/** Number of bits to shift the breakpoint handle in the second part. */
1020	#define DBGF_BP_L2_ENTRY_BP_2ND_SHIFT 52
1021	/** Mask for the second part of the breakpoint handle. */
1022	#define DBGF_BP_L2_ENTRY_BP_2ND_MASK UINT32_C(0x0fff0000)
1023	/** Mask for the second part of the breakpoint handle stored in the L2 entry. */
1024	#define DBGF_BP_L2_ENTRY_BP_2ND_L2_ENTRY_MASK UINT64_C(0xfff0000000000000)
1025	/** Number of bits to shift the depth in the second part. */
1026	#define DBGF_BP_L2_ENTRY_DEPTH_SHIFT 44
1027	/** Mask for the depth. */
1028	#define DBGF_BP_L2_ENTRY_DEPTH_MASK UINT8_MAX
1029	/** Number of bits to shift the right L2 index in the second part. */
1030	#define DBGF_BP_L2_ENTRY_RIGHT_IDX_SHIFT 22
1031	/** Number of bits to shift the left L2 index in the second part. */
1032	#define DBGF_BP_L2_ENTRY_LEFT_IDX_SHIFT 0
1033	/** Index mask. */
1034	#define DBGF_BP_L2_ENTRY_LEFT_RIGHT_IDX_MASK (RT_BIT_32(DBGF_BP_L2_ENTRY_LEFT_RIGHT_IDX_BITS) - 1)
1035	/** Left index mask. */
1036	#define DBGF_BP_L2_ENTRY_LEFT_IDX_MASK (DBGF_BP_L2_ENTRY_LEFT_RIGHT_IDX_MASK << DBGF_BP_L2_ENTRY_LEFT_IDX_SHIFT)
1037	/** Right index mask. */
1038	#define DBGF_BP_L2_ENTRY_RIGHT_IDX_MASK (DBGF_BP_L2_ENTRY_LEFT_RIGHT_IDX_MASK << DBGF_BP_L2_ENTRY_RIGHT_IDX_SHIFT)
1039	/** Returns the upper 6 bytes of the GC pointer from the given breakpoint entry. */
1040	#define DBGF_BP_L2_ENTRY_GET_GCPTR(a_u64GCPtrKeyAndBpHnd1) ((a_u64GCPtrKeyAndBpHnd1) & UINT64_C(0x0000ffffffffffff))
1041	/** Returns the breakpoint handle from both L2 entry members. */
1042	#define DBGF_BP_L2_ENTRY_GET_BP_HND(a_u64GCPtrKeyAndBpHnd1, a_u64LeftRightIdxDepthBpHnd2) \
1043	((DBGFBP)(((a_u64GCPtrKeyAndBpHnd1) >> DBGF_BP_L2_ENTRY_BP_1ST_SHIFT) \| (((a_u64LeftRightIdxDepthBpHnd2) >> DBGF_BP_L2_ENTRY_BP_2ND_SHIFT) << 16)))
1044	/** Extracts the depth of the second 64bit L2 entry value. */
1045	#define DBGF_BP_L2_ENTRY_GET_DEPTH(a_u64LeftRightIdxDepthBpHnd2) ((uint8_t)(((a_u64LeftRightIdxDepthBpHnd2) >> DBGF_BP_L2_ENTRY_DEPTH_SHIFT) & DBGF_BP_L2_ENTRY_DEPTH_MASK))
1046	/** Extracts the lower right index value from the L2 entry value. */
1047	#define DBGF_BP_L2_ENTRY_GET_IDX_RIGHT(a_u64LeftRightIdxDepthBpHnd2) \
1048	((uint32_t)(((a_u64LeftRightIdxDepthBpHnd2) >> 22) & DBGF_BP_L2_ENTRY_LEFT_RIGHT_IDX_MASK))
1049	/** Extracts the lower left index value from the L2 entry value. */
1050	#define DBGF_BP_L2_ENTRY_GET_IDX_LEFT(a_u64LeftRightIdxDepthBpHnd2) \
1051	((uint32_t)((a_u64LeftRightIdxDepthBpHnd2) & DBGF_BP_L2_ENTRY_LEFT_RIGHT_IDX_MASK))
1052
1053
1054	/**
1055	* A breakpoint L2 lookup table chunk, ring-3 state.
1056	*/
1057	typedef struct DBGFBPL2TBLCHUNKR3
1058	{
1059	/** Pointer to the R3 base of the chunk. */
1060	R3PTRTYPE(PDBGFBPL2ENTRY) pL2BaseR3;
1061	/** Bitmap of free/occupied breakpoint entries. */
1062	R3PTRTYPE(volatile void *) pbmAlloc;
1063	/** Number of free entries in the chunk. */
1064	volatile uint32_t cFree;
1065	/** The chunk index this tracking structure refers to. */
1066	uint32_t idChunk;
1067	} DBGFBPL2TBLCHUNKR3;
1068	/** Pointer to a breakpoint L2 lookup table chunk - Ring-3 Ptr. */
1069	typedef DBGFBPL2TBLCHUNKR3 *PDBGFBPL2TBLCHUNKR3;
1070	/** Pointer to a const breakpoint L2 lookup table chunk - Ring-3 Ptr. */
1071	typedef const DBGFBPL2TBLCHUNKR3 *PCDBGFBPL2TBLCHUNKR3;
1072
1073
1074	/**
1075	* Breakpoint L2 lookup table chunk, ring-0 state.
1076	*/
1077	typedef struct DBGFBPL2TBLCHUNKR0
1078	{
1079	/** The chunks memory. */
1080	RTR0MEMOBJ hMemObj;
1081	/** The ring-3 mapping object. */
1082	RTR0MEMOBJ hMapObj;
1083	/** Pointer to the breakpoint entries base. */
1084	R0PTRTYPE(PDBGFBPL2ENTRY) paBpL2TblBaseSharedR0;
1085	} DBGFBPL2TBLCHUNKR0;
1086	/** Pointer to a breakpoint L2 lookup table chunk - Ring-0 Ptr. */
1087	typedef R0PTRTYPE(DBGFBPL2TBLCHUNKR0 *) PDBGFBPL2TBLCHUNKR0;
1088
1089
1090
1091	/**
1092	* DBGF Data (part of VM)
1093	*/
1094	typedef struct DBGF
1095	{
1096	/** Bitmap of enabled hardware interrupt breakpoints. */
1097	uint32_t bmHardIntBreakpoints[256 / 32];
1098	/** Bitmap of enabled software interrupt breakpoints. */
1099	uint32_t bmSoftIntBreakpoints[256 / 32];
1100	/** Bitmap of selected events.
1101	* This includes non-selectable events too for simplicity, we maintain the
1102	* state for some of these, as it may come in handy. */
1103	uint64_t bmSelectedEvents[(DBGFEVENT_END + 63) / 64];
1104
1105	/** Enabled hardware interrupt breakpoints. */
1106	uint32_t cHardIntBreakpoints;
1107	/** Enabled software interrupt breakpoints. */
1108	uint32_t cSoftIntBreakpoints;
1109
1110	/** The number of selected events. */
1111	uint32_t cSelectedEvents;
1112
1113	/** The number of enabled hardware breakpoints. */
1114	uint8_t cEnabledHwBreakpoints;
1115	/** The number of enabled hardware I/O breakpoints. */
1116	uint8_t cEnabledHwIoBreakpoints;
1117	uint8_t au8Alignment1[2]; /*< Alignment padding. /
1118	/** The number of enabled INT3 breakpoints. */
1119	uint32_t volatile cEnabledInt3Breakpoints;
1120
1121	/** Debugger Attached flag.
1122	* Set if a debugger is attached, elsewise it's clear.
1123	*/
1124	bool volatile fAttached;
1125
1126	/** Stepping filtering. */
1127	struct
1128	{
1129	/** The CPU doing the stepping.
1130	* Set to NIL_VMCPUID when filtering is inactive */
1131	VMCPUID idCpu;
1132	/** The specified flags. */
1133	uint32_t fFlags;
1134	/** The effective PC address to stop at, if given. */
1135	RTGCPTR AddrPc;
1136	/** The lowest effective stack address to stop at.
1137	* Together with cbStackPop, this forms a range of effective stack pointer
1138	* addresses that we stop for. */
1139	RTGCPTR AddrStackPop;
1140	/** The size of the stack stop area starting at AddrStackPop. */
1141	RTGCPTR cbStackPop;
1142	/** Maximum number of steps. */
1143	uint32_t cMaxSteps;
1144
1145	/** Number of steps made thus far. */
1146	uint32_t cSteps;
1147	/** Current call counting balance for step-over handling. */
1148	uint32_t uCallDepth;
1149
1150	uint32_t u32Padding; /*< Alignment padding. /
1151
1152	} SteppingFilter;
1153
1154	uint32_t au32Alignment2[2]; /*< Alignment padding. /
1155
1156	/** @name Breakpoint handling related state.
1157	* @{ */
1158	/** Array of hardware breakpoints (0..3).
1159	* This is shared among all the CPUs because life is much simpler that way. */
1160	DBGFBPHW aHwBreakpoints[4];
1161	/** @} */
1162
1163	/**
1164	* Bug check data.
1165	* @note This will not be reset on reset.
1166	*/
1167	struct
1168	{
1169	/** The ID of the CPU reporting it. */
1170	VMCPUID idCpu;
1171	/** The event associated with the bug check (gives source).
1172	* This is set to DBGFEVENT_END if no BSOD data here. */
1173	DBGFEVENTTYPE enmEvent;
1174	/** The total reset count at the time (VMGetResetCount). */
1175	uint32_t uResetNo;
1176	/** Explicit padding. */
1177	uint32_t uPadding;
1178	/** When it was reported (TMVirtualGet). */
1179	uint64_t uTimestamp;
1180	/** The bug check number.
1181	* @note This is really just 32-bit wide, see KeBugCheckEx. */
1182	uint64_t uBugCheck;
1183	/** The bug check parameters. */
1184	uint64_t auParameters[4];
1185	} BugCheck;
1186	} DBGF;
1187	AssertCompileMemberAlignment(DBGF, aHwBreakpoints, 8);
1188	AssertCompileMemberAlignment(DBGF, bmHardIntBreakpoints, 8);
1189	/** Pointer to DBGF Data. */
1190	typedef DBGF *PDBGF;
1191
1192
1193	/**
1194	* Event state (for DBGFCPU::aEvents).
1195	*/
1196	typedef enum DBGFEVENTSTATE
1197	{
1198	/** Invalid event stack entry. */
1199	DBGFEVENTSTATE_INVALID = 0,
1200	/** The current event stack entry. */
1201	DBGFEVENTSTATE_CURRENT,
1202	/** Event that should be ignored but hasn't yet actually been ignored. */
1203	DBGFEVENTSTATE_IGNORE,
1204	/** Event that has been ignored but may be restored to IGNORE should another
1205	* debug event fire before the instruction is completed. */
1206	DBGFEVENTSTATE_RESTORABLE,
1207	/** End of valid events. */
1208	DBGFEVENTSTATE_END,
1209	/** Make sure we've got a 32-bit type. */
1210	DBGFEVENTSTATE_32BIT_HACK = 0x7fffffff
1211	} DBGFEVENTSTATE;
1212
1213
1214	/** Converts a DBGFCPU pointer into a VM pointer. */
1215	#define DBGFCPU_2_VM(pDbgfCpu) ((PVM)((uint8_t *)(pDbgfCpu) + (pDbgfCpu)->offVM))
1216
1217	/**
1218	* The per CPU data for DBGF.
1219	*/
1220	typedef struct DBGFCPU
1221	{
1222	/** The offset into the VM structure.
1223	* @see DBGFCPU_2_VM(). */
1224	uint32_t offVM;
1225
1226	/** Flag whether the to invoke any owner handlers in ring-3 before dropping into the debugger. */
1227	bool fBpInvokeOwnerCallback;
1228	/** Set if we're singlestepping in raw mode.
1229	* This is checked and cleared in the \#DB handler. */
1230	bool fSingleSteppingRaw;
1231	/** Flag whether an I/O breakpoint is pending. */
1232	bool fBpIoActive;
1233	/** Flagh whether the I/O breakpoint hit before the access or after. */
1234	bool fBpIoBefore;
1235	/** Current active breakpoint handle.
1236	* This is NIL_DBGFBP if not active. It is set when a execution engine
1237	* encounters a breakpoint and returns VINF_EM_DBG_BREAKPOINT.
1238	*
1239	* @todo drop this in favor of aEvents! */
1240	DBGFBP hBpActive;
1241	/** The access mask for a pending I/O breakpoint. */
1242	uint32_t fBpIoAccess;
1243	/** The address of the access. */
1244	uint64_t uBpIoAddress;
1245	/** The value of the access. */
1246	uint64_t uBpIoValue;
1247
1248	/** The number of events on the stack (aEvents).
1249	* The pending event is the last one (aEvents[cEvents - 1]), but only when
1250	* enmState is DBGFEVENTSTATE_CURRENT. */
1251	uint32_t cEvents;
1252	/** Events - current, ignoring and ignored.
1253	*
1254	* We maintain a stack of events in order to try avoid ending up in an infinit
1255	* loop when resuming after an event fired. There are cases where we may end
1256	* generating additional events before the instruction can be executed
1257	* successfully. Like for instance an XCHG on MMIO with separate read and write
1258	* breakpoints, or a MOVSB instruction working on breakpointed MMIO as both
1259	* source and destination.
1260	*
1261	* So, when resuming after dropping into the debugger for an event, we convert
1262	* the DBGFEVENTSTATE_CURRENT event into a DBGFEVENTSTATE_IGNORE event, leaving
1263	* cEvents unchanged. If the event is reported again, we will ignore it and
1264	* tell the reporter to continue executing. The event change to the
1265	* DBGFEVENTSTATE_RESTORABLE state.
1266	*
1267	* Currently, the event reporter has to figure out that it is a nested event and
1268	* tell DBGF to restore DBGFEVENTSTATE_RESTORABLE events (and keep
1269	* DBGFEVENTSTATE_IGNORE, should they happen out of order for some weird
1270	* reason).
1271	*/
1272	struct
1273	{
1274	/** The event details. */
1275	DBGFEVENT Event;
1276	/** The RIP at which this happend (for validating ignoring). */
1277	uint64_t rip;
1278	/** The event state. */
1279	DBGFEVENTSTATE enmState;
1280	/** Alignment padding. */
1281	uint32_t u32Alignment;
1282	} aEvents[3];
1283	} DBGFCPU;
1284	AssertCompileMemberAlignment(DBGFCPU, aEvents, 8);
1285	AssertCompileMemberSizeAlignment(DBGFCPU, aEvents[0], 8);
1286	/** Pointer to DBGFCPU data. */
1287	typedef DBGFCPU *PDBGFCPU;
1288
1289	struct DBGFOSEMTWRAPPER;
1290
1291	/**
1292	* DBGF data kept in the ring-0 GVM.
1293	*/
1294	typedef struct DBGFR0PERVM
1295	{
1296	/** Pointer to the tracer instance if enabled. */
1297	R0PTRTYPE(struct DBGFTRACERINSR0 *) pTracerR0;
1298
1299	/** @name Breakpoint handling related state, Ring-0 only part.
1300	* @{ */
1301	/** The breakpoint owner table memory object. */
1302	RTR0MEMOBJ hMemObjBpOwners;
1303	/** The breakpoint owner table mapping object. */
1304	RTR0MEMOBJ hMapObjBpOwners;
1305	/** Base pointer to the breakpoint owners table. */
1306	R0PTRTYPE(PDBGFBPOWNERINTR0) paBpOwnersR0;
1307
1308	/** Global breakpoint table chunk array. */
1309	DBGFBPCHUNKR0 aBpChunks[DBGF_BP_CHUNK_COUNT];
1310	/** Breakpoint L2 lookup table chunk array. */
1311	DBGFBPL2TBLCHUNKR0 aBpL2TblChunks[DBGF_BP_L2_TBL_CHUNK_COUNT];
1312	/** The L1 lookup tables memory object. */
1313	RTR0MEMOBJ hMemObjBpLocL1;
1314	/** The L1 lookup tables mapping object. */
1315	RTR0MEMOBJ hMapObjBpLocL1;
1316	/** The I/O port breakpoint lookup tables memory object. */
1317	RTR0MEMOBJ hMemObjBpLocPortIo;
1318	/** The I/O port breakpoint lookup tables mapping object. */
1319	RTR0MEMOBJ hMapObjBpLocPortIo;
1320	/** Base pointer to the L1 locator table. */
1321	R0PTRTYPE(volatile uint32_t *) paBpLocL1R0;
1322	/** Base pointer to the L1 locator table. */
1323	R0PTRTYPE(volatile uint32_t *) paBpLocPortIoR0;
1324	/** Flag whether the breakpoint manager was initialized (on demand). */
1325	bool fInit;
1326	/** @} */
1327	} DBGFR0PERVM;
1328
1329	/**
1330	* The DBGF data kept in the UVM.
1331	*/
1332	typedef struct DBGFUSERPERVM
1333	{
1334	/** The address space database lock. */
1335	RTSEMRW hAsDbLock;
1336	/** The address space handle database. (Protected by hAsDbLock.) */
1337	R3PTRTYPE(AVLPVTREE) AsHandleTree;
1338	/** The address space process id database. (Protected by hAsDbLock.) */
1339	R3PTRTYPE(AVLU32TREE) AsPidTree;
1340	/** The address space name database. (Protected by hAsDbLock.) */
1341	R3PTRTYPE(RTSTRSPACE) AsNameSpace;
1342	/** Special address space aliases. (Protected by hAsDbLock.) */
1343	RTDBGAS volatile ahAsAliases[DBGF_AS_COUNT];
1344	/** For lazily populating the aliased address spaces. */
1345	bool volatile afAsAliasPopuplated[DBGF_AS_COUNT];
1346	/** Alignment padding. */
1347	bool afAlignment1[2];
1348	/** Debug configuration. */
1349	R3PTRTYPE(RTDBGCFG) hDbgCfg;
1350
1351	/** The register database lock. */
1352	RTSEMRW hRegDbLock;
1353	/** String space for looking up registers. (Protected by hRegDbLock.) */
1354	R3PTRTYPE(RTSTRSPACE) RegSpace;
1355	/** String space holding the register sets. (Protected by hRegDbLock.) */
1356	R3PTRTYPE(RTSTRSPACE) RegSetSpace;
1357	/** The number of registers (aliases, sub-fields and the special CPU
1358	* register aliases (eg AH) are not counted). */
1359	uint32_t cRegs;
1360	/** For early initialization by . */
1361	bool volatile fRegDbInitialized;
1362	/** Alignment padding. */
1363	bool afAlignment2[3];
1364
1365	/** Critical section protecting the Guest OS Digger data, the info handlers
1366	* and the plugins. These share to give the best possible plugin unload
1367	* race protection. */
1368	RTCRITSECTRW CritSect;
1369	/** Head of the LIFO of loaded DBGF plugins. */
1370	R3PTRTYPE(struct DBGFPLUGIN *) pPlugInHead;
1371	/** The current Guest OS digger. */
1372	R3PTRTYPE(PDBGFOS) pCurOS;
1373	/** The head of the Guest OS digger instances. */
1374	R3PTRTYPE(PDBGFOS) pOSHead;
1375	/** List of registered info handlers. */
1376	R3PTRTYPE(PDBGFINFO) pInfoFirst;
1377
1378	/** The configured tracer. */
1379	PDBGFTRACERINSR3 pTracerR3;
1380
1381	/** @name VM -> Debugger event communication.
1382	* @{ */
1383	/** The event semaphore the debugger waits on for new events to arrive. */
1384	RTSEMEVENT hEvtWait;
1385	/** Multi event semaphore the vCPUs wait on in case the debug event ringbuffer is
1386	* full and require growing (done from the thread waiting for events). */
1387	RTSEMEVENTMULTI hEvtRingBufFull;
1388	/** Fast mutex protecting the event ring from concurrent write accesses by multiple vCPUs. */
1389	RTSEMFASTMUTEX hMtxDbgEvtWr;
1390	/** Ringbuffer of events, dynamically allocated based on the number of available vCPUs
1391	* (+ some safety entries). */
1392	PDBGFEVENT paDbgEvts;
1393	/** Number of entries in the event ring buffer. */
1394	uint32_t cDbgEvtMax;
1395	/** Next free entry to write to (vCPU thread). */
1396	volatile uint32_t idxDbgEvtWrite;
1397	/** Next event entry to from (debugger thread). */
1398	volatile uint32_t idxDbgEvtRead;
1399	/** @} */
1400
1401	/** @name Breakpoint handling related state.
1402	* @{ */
1403	/** Base pointer to the breakpoint owners table. */
1404	R3PTRTYPE(PDBGFBPOWNERINT) paBpOwnersR3;
1405	/** Pointer to the bitmap denoting occupied owner entries. */
1406	R3PTRTYPE(volatile void *) pbmBpOwnersAllocR3;
1407
1408	/** Global breakpoint table chunk array. */
1409	DBGFBPCHUNKR3 aBpChunks[DBGF_BP_CHUNK_COUNT];
1410	/** Breakpoint L2 lookup table chunk array. */
1411	DBGFBPL2TBLCHUNKR3 aBpL2TblChunks[DBGF_BP_L2_TBL_CHUNK_COUNT];
1412	/** Base pointer to the L1 locator table. */
1413	R3PTRTYPE(volatile uint32_t *) paBpLocL1R3;
1414	/** Base pointer to the Port I/O breakpoint locator table. */
1415	R3PTRTYPE(volatile uint32_t *) paBpLocPortIoR3;
1416	/** Fast mutex protecting the L2 table from concurrent write accesses (EMTs
1417	* can still do read accesses without holding it while traversing the trees). */
1418	RTSEMFASTMUTEX hMtxBpL2Wr;
1419	/** Number of armed port I/O breakpoints. */
1420	volatile uint32_t cPortIoBps;
1421	/** @} */
1422
1423	/** The type database lock. */
1424	RTSEMRW hTypeDbLock;
1425	/** String space for looking up types. (Protected by hTypeDbLock.) */
1426	R3PTRTYPE(RTSTRSPACE) TypeSpace;
1427	/** For early initialization by . */
1428	bool volatile fTypeDbInitialized;
1429	/** Alignment padding. */
1430	bool afAlignment3[3];
1431
1432	} DBGFUSERPERVM;
1433	typedef DBGFUSERPERVM *PDBGFUSERPERVM;
1434	typedef DBGFUSERPERVM const *PCDBGFUSERPERVM;
1435
1436	/**
1437	* The per-CPU DBGF data kept in the UVM.
1438	*/
1439	typedef struct DBGFUSERPERVMCPU
1440	{
1441	/** The guest register set for this CPU. Can be NULL. */
1442	R3PTRTYPE(struct DBGFREGSET *) pGuestRegSet;
1443	/** The hypervisor register set for this CPU. Can be NULL. */
1444	R3PTRTYPE(struct DBGFREGSET *) pHyperRegSet;
1445
1446	/** @name Debugger -> vCPU command communication.
1447	* @{ */
1448	/** Flag whether this vCPU is currently stopped waiting in the debugger. */
1449	bool volatile fStopped;
1450	/** The Command to the vCPU.
1451	* Operated in an atomic fashion since the vCPU will poll on this.
1452	* This means that a the command data must be written before this member
1453	* is set. The VMM will reset this member to the no-command state
1454	* when it have processed it.
1455	*/
1456	DBGFCMD volatile enmDbgfCmd;
1457	/** The Command data.
1458	* Not all commands take data. */
1459	DBGFCMDDATA DbgfCmdData;
1460	/** @} */
1461
1462	} DBGFUSERPERVMCPU;
1463
1464
1465	#ifdef IN_RING3
1466	int dbgfR3AsInit(PUVM pUVM);
1467	void dbgfR3AsTerm(PUVM pUVM);
1468	void dbgfR3AsRelocate(PUVM pUVM, RTGCUINTPTR offDelta);
1469	DECLHIDDEN(int) dbgfR3BpInit(PUVM pUVM);
1470	DECLHIDDEN(int) dbgfR3BpTerm(PUVM pUVM);
1471	int dbgfR3InfoInit(PUVM pUVM);
1472	int dbgfR3InfoTerm(PUVM pUVM);
1473	int dbgfR3OSInit(PUVM pUVM);
1474	void dbgfR3OSTermPart1(PUVM pUVM);
1475	void dbgfR3OSTermPart2(PUVM pUVM);
1476	int dbgfR3OSStackUnwindAssist(PUVM pUVM, VMCPUID idCpu, PDBGFSTACKFRAME pFrame, PRTDBGUNWINDSTATE pState,
1477	PCCPUMCTX pInitialCtx, RTDBGAS hAs, uint64_t *puScratch);
1478	int dbgfR3RegInit(PUVM pUVM);
1479	void dbgfR3RegTerm(PUVM pUVM);
1480	int dbgfR3TraceInit(PVM pVM);
1481	void dbgfR3TraceRelocate(PVM pVM);
1482	void dbgfR3TraceTerm(PVM pVM);
1483	DECLHIDDEN(int) dbgfR3TypeInit(PUVM pUVM);
1484	DECLHIDDEN(void) dbgfR3TypeTerm(PUVM pUVM);
1485	int dbgfR3PlugInInit(PUVM pUVM);
1486	void dbgfR3PlugInTerm(PUVM pUVM);
1487	int dbgfR3BugCheckInit(PVM pVM);
1488	DECLHIDDEN(int) dbgfR3TracerInit(PVM pVM);
1489	DECLHIDDEN(void) dbgfR3TracerTerm(PVM pVM);
1490
1491	/**
1492	* DBGF disassembler state (substate of DISSTATE).
1493	*/
1494	typedef struct DBGFDISSTATE
1495	{
1496	/** Pointer to the current instruction. */
1497	PCDISOPCODE pCurInstr;
1498	/** Size of the instruction in bytes. */
1499	uint32_t cbInstr;
1500	/** Parameters. */
1501	DISOPPARAM Param1;
1502	DISOPPARAM Param2;
1503	DISOPPARAM Param3;
1504	DISOPPARAM Param4;
1505	} DBGFDISSTATE;
1506	/** Pointer to a DBGF disassembler state. */
1507	typedef DBGFDISSTATE *PDBGFDISSTATE;
1508
1509	DECLHIDDEN(int) dbgfR3DisasInstrStateEx(PUVM pUVM, VMCPUID idCpu, PDBGFADDRESS pAddr, uint32_t fFlags,
1510	char *pszOutput, uint32_t cbOutput, PDBGFDISSTATE pDisState);
1511
1512	#endif /* IN_RING3 */
1513
1514	#ifdef IN_RING0
1515	DECLHIDDEN(void) dbgfR0TracerDestroy(PGVM pGVM, PDBGFTRACERINSR0 pTracer);
1516	DECLHIDDEN(void) dbgfR0BpInit(PGVM pGVM);
1517	DECLHIDDEN(void) dbgfR0BpDestroy(PGVM pGVM);
1518	#endif /* !IN_RING0 */
1519
1520	/** @} */
1521
1522	#endif /* !VMM_INCLUDED_SRC_include_DBGFInternal_h */

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source: vbox/trunk/src/VBox/VMM/include/DBGFInternal.h@ 100111

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