DBGFR0Bp.cpp@ 106061

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1	/* $Id: DBGFR0Bp.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
2	/** @file
3	* DBGF - Debugger Facility, R0 breakpoint management part.
4	*/
5
6	/*
7	* Copyright (C) 2020-2024 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
29	/*********************************************************************************************************************************
30	* Header Files *
31	*********************************************************************************************************************************/
32	#define LOG_GROUP LOG_GROUP_DBGF
33	#include "DBGFInternal.h"
34	#include <VBox/vmm/gvm.h>
35	#include <VBox/vmm/gvmm.h>
36	#include <VBox/vmm/vmm.h>
37
38	#include <VBox/log.h>
39	#include <VBox/sup.h>
40	#include <iprt/asm.h>
41	#include <iprt/assert.h>
42	#include <iprt/errcore.h>
43	#include <iprt/ctype.h>
44	#include <iprt/mem.h>
45	#include <iprt/memobj.h>
46	#include <iprt/process.h>
47	#include <iprt/string.h>
48
49	#include "dtrace/VBoxVMM.h"
50
51
52	/*********************************************************************************************************************************
53	* Internal Functions *
54	*********************************************************************************************************************************/
55
56	/**
57	* Used by DBGFR0InitPerVM() to initialize the breakpoint manager.
58	*
59	* @param pGVM The global (ring-0) VM structure.
60	*/
61	DECLHIDDEN(void) dbgfR0BpInit(PGVM pGVM)
62	{
63	pGVM->dbgfr0.s.hMemObjBpOwners = NIL_RTR0MEMOBJ;
64	pGVM->dbgfr0.s.hMapObjBpOwners = NIL_RTR0MEMOBJ;
65	//pGVM->dbgfr0.s.paBpOwnersR0 = NULL;
66
67	for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
68	{
69	PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
70
71	pBpChunk->hMemObj = NIL_RTR0MEMOBJ;
72	pBpChunk->hMapObj = NIL_RTR0MEMOBJ;
73	//pBpChunk->paBpBaseSharedR0 = NULL;
74	//pBpChunk->paBpBaseR0Only = NULL;
75	}
76
77	for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
78	{
79	PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
80
81	pL2Chunk->hMemObj = NIL_RTR0MEMOBJ;
82	pL2Chunk->hMapObj = NIL_RTR0MEMOBJ;
83	//pL2Chunk->paBpL2TblBaseSharedR0 = NULL;
84	}
85
86	pGVM->dbgfr0.s.hMemObjBpLocL1 = NIL_RTR0MEMOBJ;
87	pGVM->dbgfr0.s.hMapObjBpLocL1 = NIL_RTR0MEMOBJ;
88	pGVM->dbgfr0.s.hMemObjBpLocPortIo = NIL_RTR0MEMOBJ;
89	pGVM->dbgfr0.s.hMapObjBpLocPortIo = NIL_RTR0MEMOBJ;
90	//pGVM->dbgfr0.s.paBpLocL1R0 = NULL;
91	//pGVM->dbgfr0.s.paBpLocPortIoR0 = NULL;
92	//pGVM->dbgfr0.s.fInit = false;
93	}
94
95
96	/**
97	* Used by DBGFR0CleanupVM to destroy the breakpoint manager.
98	*
99	* This is done during VM cleanup so that we're sure there are no active threads
100	* using the breakpoint code.
101	*
102	* @param pGVM The global (ring-0) VM structure.
103	*/
104	DECLHIDDEN(void) dbgfR0BpDestroy(PGVM pGVM)
105	{
106	if (pGVM->dbgfr0.s.hMemObjBpOwners != NIL_RTR0MEMOBJ)
107	{
108	Assert(pGVM->dbgfr0.s.hMapObjBpOwners != NIL_RTR0MEMOBJ);
109	AssertPtr(pGVM->dbgfr0.s.paBpOwnersR0);
110
111	RTR0MEMOBJ hMemObj = pGVM->dbgfr0.s.hMapObjBpOwners;
112	pGVM->dbgfr0.s.hMapObjBpOwners = NIL_RTR0MEMOBJ;
113	RTR0MemObjFree(hMemObj, true);
114
115	hMemObj = pGVM->dbgfr0.s.hMemObjBpOwners;
116	pGVM->dbgfr0.s.hMemObjBpOwners = NIL_RTR0MEMOBJ;
117	RTR0MemObjFree(hMemObj, true);
118	}
119
120	if (pGVM->dbgfr0.s.fInit)
121	{
122	Assert(pGVM->dbgfr0.s.hMemObjBpLocL1 != NIL_RTR0MEMOBJ);
123	AssertPtr(pGVM->dbgfr0.s.paBpLocL1R0);
124
125	/*
126	* Free all allocated memory and ring-3 mapping objects.
127	*/
128	RTR0MEMOBJ hMemObj = pGVM->dbgfr0.s.hMemObjBpLocL1;
129	pGVM->dbgfr0.s.hMemObjBpLocL1 = NIL_RTR0MEMOBJ;
130	pGVM->dbgfr0.s.paBpLocL1R0 = NULL;
131	RTR0MemObjFree(hMemObj, true);
132
133	if (pGVM->dbgfr0.s.paBpLocPortIoR0)
134	{
135	Assert(pGVM->dbgfr0.s.hMemObjBpLocPortIo != NIL_RTR0MEMOBJ);
136	Assert(pGVM->dbgfr0.s.hMapObjBpLocPortIo != NIL_RTR0MEMOBJ);
137
138	hMemObj = pGVM->dbgfr0.s.hMapObjBpLocPortIo;
139	pGVM->dbgfr0.s.hMapObjBpLocPortIo = NIL_RTR0MEMOBJ;
140	RTR0MemObjFree(hMemObj, true);
141
142	hMemObj = pGVM->dbgfr0.s.hMemObjBpLocPortIo;
143	pGVM->dbgfr0.s.hMemObjBpLocPortIo = NIL_RTR0MEMOBJ;
144	pGVM->dbgfr0.s.paBpLocPortIoR0 = NULL;
145	RTR0MemObjFree(hMemObj, true);
146	}
147
148	for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
149	{
150	PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
151
152	if (pBpChunk->hMemObj != NIL_RTR0MEMOBJ)
153	{
154	Assert(pBpChunk->hMapObj != NIL_RTR0MEMOBJ);
155
156	pBpChunk->paBpBaseSharedR0 = NULL;
157	pBpChunk->paBpBaseR0Only = NULL;
158
159	hMemObj = pBpChunk->hMapObj;
160	pBpChunk->hMapObj = NIL_RTR0MEMOBJ;
161	RTR0MemObjFree(hMemObj, true);
162
163	hMemObj = pBpChunk->hMemObj;
164	pBpChunk->hMemObj = NIL_RTR0MEMOBJ;
165	RTR0MemObjFree(hMemObj, true);
166	}
167	}
168
169	for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
170	{
171	PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
172
173	if (pL2Chunk->hMemObj != NIL_RTR0MEMOBJ)
174	{
175	Assert(pL2Chunk->hMapObj != NIL_RTR0MEMOBJ);
176
177	pL2Chunk->paBpL2TblBaseSharedR0 = NULL;
178
179	hMemObj = pL2Chunk->hMapObj;
180	pL2Chunk->hMapObj = NIL_RTR0MEMOBJ;
181	RTR0MemObjFree(hMemObj, true);
182
183	hMemObj = pL2Chunk->hMemObj;
184	pL2Chunk->hMemObj = NIL_RTR0MEMOBJ;
185	RTR0MemObjFree(hMemObj, true);
186	}
187	}
188
189	pGVM->dbgfr0.s.fInit = false;
190	}
191	#ifdef RT_STRICT
192	else
193	{
194	Assert(pGVM->dbgfr0.s.hMemObjBpLocL1 == NIL_RTR0MEMOBJ);
195	Assert(!pGVM->dbgfr0.s.paBpLocL1R0);
196
197	Assert(pGVM->dbgfr0.s.hMemObjBpLocPortIo == NIL_RTR0MEMOBJ);
198	Assert(!pGVM->dbgfr0.s.paBpLocPortIoR0);
199
200	for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpChunks); i++)
201	{
202	PDBGFBPCHUNKR0 pBpChunk = &pGVM->dbgfr0.s.aBpChunks[i];
203
204	Assert(pBpChunk->hMemObj == NIL_RTR0MEMOBJ);
205	Assert(pBpChunk->hMapObj == NIL_RTR0MEMOBJ);
206	Assert(!pBpChunk->paBpBaseSharedR0);
207	Assert(!pBpChunk->paBpBaseR0Only);
208	}
209
210	for (uint32_t i = 0; i < RT_ELEMENTS(pGVM->dbgfr0.s.aBpL2TblChunks); i++)
211	{
212	PDBGFBPL2TBLCHUNKR0 pL2Chunk = &pGVM->dbgfr0.s.aBpL2TblChunks[i];
213
214	Assert(pL2Chunk->hMemObj == NIL_RTR0MEMOBJ);
215	Assert(pL2Chunk->hMapObj == NIL_RTR0MEMOBJ);
216	Assert(!pL2Chunk->paBpL2TblBaseSharedR0);
217	}
218	}
219	#endif
220	}
221
222
223	/**
224	* Worker for DBGFR0BpInitReqHandler() that does the actual initialization.
225	*
226	* @returns VBox status code.
227	* @param pGVM The global (ring-0) VM structure.
228	* @param ppaBpLocL1R3 Where to return the ring-3 L1 lookup table address on success.
229	* @thread EMT(0)
230	*/
231	static int dbgfR0BpInitWorker(PGVM pGVM, R3PTRTYPE(volatile uint32_t ) ppaBpLocL1R3)
232	{
233	/*
234	* Figure out how much memory we need for the L1 lookup table and allocate it.
235	*/
236	uint32_t const cbL1Loc = RT_ALIGN_32(UINT16_MAX * sizeof(uint32_t), HOST_PAGE_SIZE);
237
238	RTR0MEMOBJ hMemObj;
239	int rc = RTR0MemObjAllocPage(&hMemObj, cbL1Loc, false /fExecutable/);
240	if (RT_FAILURE(rc))
241	return rc;
242	RT_BZERO(RTR0MemObjAddress(hMemObj), cbL1Loc);
243
244	/* Map it. */
245	RTR0MEMOBJ hMapObj;
246	rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ \| RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
247	0 /offSub/, cbL1Loc);
248	if (RT_SUCCESS(rc))
249	{
250	pGVM->dbgfr0.s.hMemObjBpLocL1 = hMemObj;
251	pGVM->dbgfr0.s.hMapObjBpLocL1 = hMapObj;
252	pGVM->dbgfr0.s.paBpLocL1R0 = (volatile uint32_t *)RTR0MemObjAddress(hMemObj);
253
254	/*
255	* We're done.
256	*/
257	*ppaBpLocL1R3 = RTR0MemObjAddressR3(hMapObj);
258	pGVM->dbgfr0.s.fInit = true;
259	return rc;
260	}
261
262	RTR0MemObjFree(hMemObj, true);
263	return rc;
264	}
265
266
267	/**
268	* Worker for DBGFR0BpPortIoInitReqHandler() that does the actual initialization.
269	*
270	* @returns VBox status code.
271	* @param pGVM The global (ring-0) VM structure.
272	* @param ppaBpLocPortIoR3 Where to return the ring-3 L1 lookup table address on success.
273	* @thread EMT(0)
274	*/
275	static int dbgfR0BpPortIoInitWorker(PGVM pGVM, R3PTRTYPE(volatile uint32_t ) ppaBpLocPortIoR3)
276	{
277	/*
278	* Figure out how much memory we need for the I/O port breakpoint lookup table and allocate it.
279	*/
280	uint32_t const cbPortIoLoc = RT_ALIGN_32(UINT16_MAX * sizeof(uint32_t), HOST_PAGE_SIZE);
281
282	RTR0MEMOBJ hMemObj;
283	int rc = RTR0MemObjAllocPage(&hMemObj, cbPortIoLoc, false /fExecutable/);
284	if (RT_FAILURE(rc))
285	return rc;
286	RT_BZERO(RTR0MemObjAddress(hMemObj), cbPortIoLoc);
287
288	/* Map it. */
289	RTR0MEMOBJ hMapObj;
290	rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ \| RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
291	0 /offSub/, cbPortIoLoc);
292	if (RT_SUCCESS(rc))
293	{
294	pGVM->dbgfr0.s.hMemObjBpLocPortIo = hMemObj;
295	pGVM->dbgfr0.s.hMapObjBpLocPortIo = hMapObj;
296	pGVM->dbgfr0.s.paBpLocPortIoR0 = (volatile uint32_t *)RTR0MemObjAddress(hMemObj);
297
298	/*
299	* We're done.
300	*/
301	*ppaBpLocPortIoR3 = RTR0MemObjAddressR3(hMapObj);
302	return rc;
303	}
304
305	RTR0MemObjFree(hMemObj, true);
306	return rc;
307	}
308
309
310	/**
311	* Worker for DBGFR0BpOwnerInitReqHandler() that does the actual initialization.
312	*
313	* @returns VBox status code.
314	* @param pGVM The global (ring-0) VM structure.
315	* @param ppaBpOwnerR3 Where to return the ring-3 breakpoint owner table base address on success.
316	* @thread EMT(0)
317	*/
318	static int dbgfR0BpOwnerInitWorker(PGVM pGVM, R3PTRTYPE(void ) ppaBpOwnerR3)
319	{
320	/*
321	* Figure out how much memory we need for the owner tables and allocate it.
322	*/
323	uint32_t const cbBpOwnerR0 = RT_ALIGN_32(DBGF_BP_OWNER_COUNT_MAX * sizeof(DBGFBPOWNERINTR0), HOST_PAGE_SIZE);
324	uint32_t const cbBpOwnerR3 = RT_ALIGN_32(DBGF_BP_OWNER_COUNT_MAX * sizeof(DBGFBPOWNERINT), HOST_PAGE_SIZE);
325	uint32_t const cbTotal = RT_ALIGN_32(cbBpOwnerR0 + cbBpOwnerR3, HOST_PAGE_SIZE);
326
327	RTR0MEMOBJ hMemObj;
328	int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /fExecutable/);
329	if (RT_FAILURE(rc))
330	return rc;
331	RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
332
333	/* Map it. */
334	RTR0MEMOBJ hMapObj;
335	rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ \| RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
336	cbBpOwnerR0 /offSub/, cbBpOwnerR3);
337	if (RT_SUCCESS(rc))
338	{
339	pGVM->dbgfr0.s.hMemObjBpOwners = hMemObj;
340	pGVM->dbgfr0.s.hMapObjBpOwners = hMapObj;
341	pGVM->dbgfr0.s.paBpOwnersR0 = (PDBGFBPOWNERINTR0)RTR0MemObjAddress(hMemObj);
342
343	/*
344	* We're done.
345	*/
346	*ppaBpOwnerR3 = RTR0MemObjAddressR3(hMapObj);
347	return rc;
348	}
349
350	RTR0MemObjFree(hMemObj, true);
351	return rc;
352	}
353
354
355	/**
356	* Worker for DBGFR0BpChunkAllocReqHandler() that does the actual chunk allocation.
357	*
358	* Allocates a memory object and divides it up as follows:
359	* @verbatim
360	--------------------------------------
361	ring-0 chunk data
362	--------------------------------------
363	page alignment padding
364	--------------------------------------
365	shared chunk data
366	--------------------------------------
367	@endverbatim
368	*
369	* @returns VBox status code.
370	* @param pGVM The global (ring-0) VM structure.
371	* @param idChunk The chunk ID to allocate.
372	* @param ppBpChunkBaseR3 Where to return the ring-3 chunk base address on success.
373	* @thread EMT(0)
374	*/
375	static int dbgfR0BpChunkAllocWorker(PGVM pGVM, uint32_t idChunk, R3PTRTYPE(void ) ppBpChunkBaseR3)
376	{
377	/*
378	* Figure out how much memory we need for the chunk and allocate it.
379	*/
380	uint32_t const cbRing0 = RT_ALIGN_32(DBGF_BP_COUNT_PER_CHUNK * sizeof(DBGFBPINTR0), HOST_PAGE_SIZE);
381	uint32_t const cbShared = RT_ALIGN_32(DBGF_BP_COUNT_PER_CHUNK * sizeof(DBGFBPINT), HOST_PAGE_SIZE);
382	uint32_t const cbTotal = cbRing0 + cbShared;
383
384	RTR0MEMOBJ hMemObj;
385	int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /fExecutable/);
386	if (RT_FAILURE(rc))
387	return rc;
388	RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
389
390	/* Map it. */
391	RTR0MEMOBJ hMapObj;
392	rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ \| RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
393	cbRing0 /offSub/, cbTotal - cbRing0);
394	if (RT_SUCCESS(rc))
395	{
396	PDBGFBPCHUNKR0 pBpChunkR0 = &pGVM->dbgfr0.s.aBpChunks[idChunk];
397
398	pBpChunkR0->hMemObj = hMemObj;
399	pBpChunkR0->hMapObj = hMapObj;
400	pBpChunkR0->paBpBaseR0Only = (PDBGFBPINTR0)RTR0MemObjAddress(hMemObj);
401	pBpChunkR0->paBpBaseSharedR0 = (PDBGFBPINT)&pBpChunkR0->paBpBaseR0Only[DBGF_BP_COUNT_PER_CHUNK];
402
403	/*
404	* We're done.
405	*/
406	*ppBpChunkBaseR3 = RTR0MemObjAddressR3(hMapObj);
407	return rc;
408	}
409
410	RTR0MemObjFree(hMemObj, true);
411	return rc;
412	}
413
414
415	/**
416	* Worker for DBGFR0BpL2TblChunkAllocReqHandler() that does the actual chunk allocation.
417	*
418	* @returns VBox status code.
419	* @param pGVM The global (ring-0) VM structure.
420	* @param idChunk The chunk ID to allocate.
421	* @param ppL2ChunkBaseR3 Where to return the ring-3 chunk base address on success.
422	* @thread EMT(0)
423	*/
424	static int dbgfR0BpL2TblChunkAllocWorker(PGVM pGVM, uint32_t idChunk, R3PTRTYPE(void ) ppL2ChunkBaseR3)
425	{
426	/*
427	* Figure out how much memory we need for the chunk and allocate it.
428	*/
429	uint32_t const cbTotal = RT_ALIGN_32(DBGF_BP_L2_TBL_ENTRIES_PER_CHUNK * sizeof(DBGFBPL2ENTRY), HOST_PAGE_SIZE);
430
431	RTR0MEMOBJ hMemObj;
432	int rc = RTR0MemObjAllocPage(&hMemObj, cbTotal, false /fExecutable/);
433	if (RT_FAILURE(rc))
434	return rc;
435	RT_BZERO(RTR0MemObjAddress(hMemObj), cbTotal);
436
437	/* Map it. */
438	RTR0MEMOBJ hMapObj;
439	rc = RTR0MemObjMapUserEx(&hMapObj, hMemObj, (RTR3PTR)-1, 0, RTMEM_PROT_READ \| RTMEM_PROT_WRITE, RTR0ProcHandleSelf(),
440	0 /offSub/, cbTotal);
441	if (RT_SUCCESS(rc))
442	{
443	PDBGFBPL2TBLCHUNKR0 pL2ChunkR0 = &pGVM->dbgfr0.s.aBpL2TblChunks[idChunk];
444
445	pL2ChunkR0->hMemObj = hMemObj;
446	pL2ChunkR0->hMapObj = hMapObj;
447	pL2ChunkR0->paBpL2TblBaseSharedR0 = (PDBGFBPL2ENTRY)RTR0MemObjAddress(hMemObj);
448
449	/*
450	* We're done.
451	*/
452	*ppL2ChunkBaseR3 = RTR0MemObjAddressR3(hMapObj);
453	return rc;
454	}
455
456	RTR0MemObjFree(hMemObj, true);
457	return rc;
458	}
459
460
461	/**
462	* Used by ring-3 DBGF to fully initialize the breakpoint manager for operation.
463	*
464	* @returns VBox status code.
465	* @param pGVM The global (ring-0) VM structure.
466	* @param pReq Pointer to the request buffer.
467	* @thread EMT(0)
468	*/
469	VMMR0_INT_DECL(int) DBGFR0BpInitReqHandler(PGVM pGVM, PDBGFBPINITREQ pReq)
470	{
471	LogFlow(("DBGFR0BpInitReqHandler:\n"));
472
473	/*
474	* Validate the request.
475	*/
476	AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
477
478	int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
479	AssertRCReturn(rc, rc);
480
481	AssertReturn(!pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
482
483	return dbgfR0BpInitWorker(pGVM, &pReq->paBpLocL1R3);
484	}
485
486
487	/**
488	* Used by ring-3 DBGF to initialize the breakpoint manager for port I/O breakpoint operation.
489	*
490	* @returns VBox status code.
491	* @param pGVM The global (ring-0) VM structure.
492	* @param pReq Pointer to the request buffer.
493	* @thread EMT(0)
494	*/
495	VMMR0_INT_DECL(int) DBGFR0BpPortIoInitReqHandler(PGVM pGVM, PDBGFBPINITREQ pReq)
496	{
497	LogFlow(("DBGFR0BpPortIoInitReqHandler:\n"));
498
499	/*
500	* Validate the request.
501	*/
502	AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
503
504	int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
505	AssertRCReturn(rc, rc);
506
507	AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
508	AssertReturn(!pGVM->dbgfr0.s.paBpLocPortIoR0, VERR_WRONG_ORDER);
509
510	return dbgfR0BpPortIoInitWorker(pGVM, &pReq->paBpLocL1R3);
511	}
512
513
514	/**
515	* Used by ring-3 DBGF to initialize the breakpoint owner table for operation.
516	*
517	* @returns VBox status code.
518	* @param pGVM The global (ring-0) VM structure.
519	* @param pReq Pointer to the request buffer.
520	* @thread EMT(0)
521	*/
522	VMMR0_INT_DECL(int) DBGFR0BpOwnerInitReqHandler(PGVM pGVM, PDBGFBPOWNERINITREQ pReq)
523	{
524	LogFlow(("DBGFR0BpOwnerInitReqHandler:\n"));
525
526	/*
527	* Validate the request.
528	*/
529	AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
530
531	int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
532	AssertRCReturn(rc, rc);
533
534	AssertReturn(!pGVM->dbgfr0.s.paBpOwnersR0, VERR_WRONG_ORDER);
535
536	return dbgfR0BpOwnerInitWorker(pGVM, &pReq->paBpOwnerR3);
537	}
538
539
540	/**
541	* Used by ring-3 DBGF to allocate a given chunk in the global breakpoint table.
542	*
543	* @returns VBox status code.
544	* @param pGVM The global (ring-0) VM structure.
545	* @param pReq Pointer to the request buffer.
546	* @thread EMT(0)
547	*/
548	VMMR0_INT_DECL(int) DBGFR0BpChunkAllocReqHandler(PGVM pGVM, PDBGFBPCHUNKALLOCREQ pReq)
549	{
550	LogFlow(("DBGFR0BpChunkAllocReqHandler:\n"));
551
552	/*
553	* Validate the request.
554	*/
555	AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
556
557	uint32_t const idChunk = pReq->idChunk;
558	AssertReturn(idChunk < DBGF_BP_CHUNK_COUNT, VERR_INVALID_PARAMETER);
559
560	int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
561	AssertRCReturn(rc, rc);
562
563	AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
564	AssertReturn(pGVM->dbgfr0.s.aBpChunks[idChunk].hMemObj == NIL_RTR0MEMOBJ, VERR_INVALID_PARAMETER);
565
566	return dbgfR0BpChunkAllocWorker(pGVM, idChunk, &pReq->pChunkBaseR3);
567	}
568
569
570	/**
571	* Used by ring-3 DBGF to allocate a given chunk in the global L2 lookup table.
572	*
573	* @returns VBox status code.
574	* @param pGVM The global (ring-0) VM structure.
575	* @param pReq Pointer to the request buffer.
576	* @thread EMT(0)
577	*/
578	VMMR0_INT_DECL(int) DBGFR0BpL2TblChunkAllocReqHandler(PGVM pGVM, PDBGFBPL2TBLCHUNKALLOCREQ pReq)
579	{
580	LogFlow(("DBGFR0BpL2TblChunkAllocReqHandler:\n"));
581
582	/*
583	* Validate the request.
584	*/
585	AssertReturn(pReq->Hdr.cbReq == sizeof(*pReq), VERR_INVALID_PARAMETER);
586
587	uint32_t const idChunk = pReq->idChunk;
588	AssertReturn(idChunk < DBGF_BP_L2_TBL_CHUNK_COUNT, VERR_INVALID_PARAMETER);
589
590	int rc = GVMMR0ValidateGVMandEMT(pGVM, 0);
591	AssertRCReturn(rc, rc);
592
593	AssertReturn(pGVM->dbgfr0.s.fInit, VERR_WRONG_ORDER);
594	AssertReturn(pGVM->dbgfr0.s.aBpL2TblChunks[idChunk].hMemObj == NIL_RTR0MEMOBJ, VERR_INVALID_PARAMETER);
595
596	return dbgfR0BpL2TblChunkAllocWorker(pGVM, idChunk, &pReq->pChunkBaseR3);
597	}
598

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source: vbox/trunk/src/VBox/VMM/VMMR0/DBGFR0Bp.cpp@ 106061

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