VirtualBox

source: vbox/trunk/src/VBox/VMM/IOMInternal.h@ 18499

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1/* $Id: IOMInternal.h 17332 2009-03-04 09:14:23Z vboxsync $ */
2/** @file
3 * IOM - Internal header file.
4 */
5
6/*
7 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18 * Clara, CA 95054 USA or visit http://www.sun.com if you need
19 * additional information or have any questions.
20 */
21
22#ifndef ___IOMInternal_h
23#define ___IOMInternal_h
24
25#include <VBox/cdefs.h>
26#include <VBox/types.h>
27#include <VBox/iom.h>
28#include <VBox/stam.h>
29#include <VBox/pgm.h>
30#include <VBox/param.h>
31#include <iprt/avl.h>
32
33
34
35/** @defgroup grp_iom_int Internals
36 * @ingroup grp_iom
37 * @internal
38 * @{
39 */
40
41/**
42 * MMIO range descriptor.
43 */
44typedef struct IOMMMIORANGE
45{
46 /** Avl node core with GCPhys as Key and GCPhys + cbSize - 1 as KeyLast. */
47 AVLROGCPHYSNODECORE Core;
48 /** Start physical address. */
49 RTGCPHYS GCPhys;
50 /** Size of the range. */
51 uint32_t cb;
52 uint32_t u32Alignment; /**< Alignment padding. */
53
54 /** Pointer to user argument - R3. */
55 RTR3PTR pvUserR3;
56 /** Pointer to device instance - R3. */
57 PPDMDEVINSR3 pDevInsR3;
58 /** Pointer to write callback function - R3. */
59 R3PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallbackR3;
60 /** Pointer to read callback function - R3. */
61 R3PTRTYPE(PFNIOMMMIOREAD) pfnReadCallbackR3;
62 /** Pointer to fill (memset) callback function - R3. */
63 R3PTRTYPE(PFNIOMMMIOFILL) pfnFillCallbackR3;
64
65 /** Pointer to user argument - R0. */
66 RTR0PTR pvUserR0;
67 /** Pointer to device instance - R0. */
68 PPDMDEVINSR0 pDevInsR0;
69 /** Pointer to write callback function - R0. */
70 R0PTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallbackR0;
71 /** Pointer to read callback function - R0. */
72 R0PTRTYPE(PFNIOMMMIOREAD) pfnReadCallbackR0;
73 /** Pointer to fill (memset) callback function - R0. */
74 R0PTRTYPE(PFNIOMMMIOFILL) pfnFillCallbackR0;
75
76 /** Pointer to user argument - RC. */
77 RTRCPTR pvUserRC;
78 /** Pointer to device instance - RC. */
79 PPDMDEVINSRC pDevInsRC;
80 /** Pointer to write callback function - RC. */
81 RCPTRTYPE(PFNIOMMMIOWRITE) pfnWriteCallbackRC;
82 /** Pointer to read callback function - RC. */
83 RCPTRTYPE(PFNIOMMMIOREAD) pfnReadCallbackRC;
84 /** Pointer to fill (memset) callback function - RC. */
85 RCPTRTYPE(PFNIOMMMIOFILL) pfnFillCallbackRC;
86 /** Alignment padding. */
87 RTRCPTR RCPtrAlignment;
88
89 /** Description / Name. For easing debugging. */
90 R3PTRTYPE(const char *) pszDesc;
91} IOMMMIORANGE;
92/** Pointer to a MMIO range descriptor, R3 version. */
93typedef struct IOMMMIORANGE *PIOMMMIORANGE;
94
95
96/**
97 * MMIO address statistics. (one address)
98 *
99 * This is a simple way of making on demand statistics, however it's a
100 * bit free with the hypervisor heap memory.
101 */
102typedef struct IOMMMIOSTATS
103{
104 /** Avl node core with the address as Key. */
105 AVLOGCPHYSNODECORE Core;
106
107 /** Number of reads to this address from R3. */
108 STAMCOUNTER ReadR3;
109 /** Profiling read handler overhead in R3. */
110 STAMPROFILEADV ProfReadR3;
111
112 /** Number of writes to this address from R3. */
113 STAMCOUNTER WriteR3;
114 /** Profiling write handler overhead in R3. */
115 STAMPROFILEADV ProfWriteR3;
116
117 /** Number of reads to this address from R0/RC. */
118 STAMCOUNTER ReadRZ;
119 /** Profiling read handler overhead in R0/RC. */
120 STAMPROFILEADV ProfReadRZ;
121 /** Number of reads to this address from R0/RC which was serviced in R3. */
122 STAMCOUNTER ReadRZToR3;
123
124 /** Number of writes to this address from R0/RC. */
125 STAMCOUNTER WriteRZ;
126 /** Profiling write handler overhead in R0/RC. */
127 STAMPROFILEADV ProfWriteRZ;
128 /** Number of writes to this address from R0/RC which was serviced in R3. */
129 STAMCOUNTER WriteRZToR3;
130} IOMMMIOSTATS;
131/** Pointer to I/O port statistics. */
132typedef IOMMMIOSTATS *PIOMMMIOSTATS;
133
134
135/**
136 * I/O port range descriptor, R3 version.
137 */
138typedef struct IOMIOPORTRANGER3
139{
140 /** Avl node core with Port as Key and Port + cPorts - 1 as KeyLast. */
141 AVLROIOPORTNODECORE Core;
142#if HC_ARCH_BITS == 64 && !defined(RT_OS_WINDOWS)
143 uint32_t u32Alignment; /**< The sizeof(Core) differs. */
144#endif
145 /** Start I/O port address. */
146 RTIOPORT Port;
147 /** Size of the range. */
148 uint16_t cPorts;
149 /** Pointer to user argument. */
150 RTR3PTR pvUser;
151 /** Pointer to the associated device instance. */
152 R3PTRTYPE(PPDMDEVINS) pDevIns;
153 /** Pointer to OUT callback function. */
154 R3PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback;
155 /** Pointer to IN callback function. */
156 R3PTRTYPE(PFNIOMIOPORTIN) pfnInCallback;
157 /** Pointer to string OUT callback function. */
158 R3PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback;
159 /** Pointer to string IN callback function. */
160 R3PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback;
161 /** Description / Name. For easing debugging. */
162 R3PTRTYPE(const char *) pszDesc;
163} IOMIOPORTRANGER3;
164/** Pointer to I/O port range descriptor, R3 version. */
165typedef IOMIOPORTRANGER3 *PIOMIOPORTRANGER3;
166
167/**
168 * I/O port range descriptor, R0 version.
169 */
170typedef struct IOMIOPORTRANGER0
171{
172 /** Avl node core with Port as Key and Port + cPorts - 1 as KeyLast. */
173 AVLROIOPORTNODECORE Core;
174#if HC_ARCH_BITS == 64 && !defined(RT_OS_WINDOWS)
175 uint32_t u32Alignment; /**< The sizeof(Core) differs. */
176#endif
177 /** Start I/O port address. */
178 RTIOPORT Port;
179 /** Size of the range. */
180 uint16_t cPorts;
181 /** Pointer to user argument. */
182 RTR0PTR pvUser;
183 /** Pointer to the associated device instance. */
184 R0PTRTYPE(PPDMDEVINS) pDevIns;
185 /** Pointer to OUT callback function. */
186 R0PTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback;
187 /** Pointer to IN callback function. */
188 R0PTRTYPE(PFNIOMIOPORTIN) pfnInCallback;
189 /** Pointer to string OUT callback function. */
190 R0PTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback;
191 /** Pointer to string IN callback function. */
192 R0PTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback;
193 /** Description / Name. For easing debugging. */
194 R3PTRTYPE(const char *) pszDesc;
195} IOMIOPORTRANGER0;
196/** Pointer to I/O port range descriptor, R0 version. */
197typedef IOMIOPORTRANGER0 *PIOMIOPORTRANGER0;
198
199/**
200 * I/O port range descriptor, RC version.
201 */
202typedef struct IOMIOPORTRANGERC
203{
204 /** Avl node core with Port as Key and Port + cPorts - 1 as KeyLast. */
205 AVLROIOPORTNODECORE Core;
206 /** Start I/O port address. */
207 RTIOPORT Port;
208 /** Size of the range. */
209 uint16_t cPorts;
210 /** Pointer to user argument. */
211 RTRCPTR pvUser;
212 /** Pointer to the associated device instance. */
213 RCPTRTYPE(PPDMDEVINS) pDevIns;
214 /** Pointer to OUT callback function. */
215 RCPTRTYPE(PFNIOMIOPORTOUT) pfnOutCallback;
216 /** Pointer to IN callback function. */
217 RCPTRTYPE(PFNIOMIOPORTIN) pfnInCallback;
218 /** Pointer to string OUT callback function. */
219 RCPTRTYPE(PFNIOMIOPORTOUTSTRING) pfnOutStrCallback;
220 /** Pointer to string IN callback function. */
221 RCPTRTYPE(PFNIOMIOPORTINSTRING) pfnInStrCallback;
222#if HC_ARCH_BITS == 64
223 RTRCPTR RCPtrAlignment; /**< pszDesc is 8 byte aligned. */
224#endif
225 /** Description / Name. For easing debugging. */
226 R3PTRTYPE(const char *) pszDesc;
227} IOMIOPORTRANGERC;
228/** Pointer to I/O port range descriptor, RC version. */
229typedef IOMIOPORTRANGERC *PIOMIOPORTRANGERC;
230
231
232/**
233 * I/O port statistics. (one I/O port)
234 *
235 * This is a simple way of making on demand statistics, however it's a
236 * bit free with the hypervisor heap memory.
237 */
238typedef struct IOMIOPORTSTATS
239{
240 /** Avl node core with the port as Key. */
241 AVLOIOPORTNODECORE Core;
242#if HC_ARCH_BITS == 64 && !defined(RT_OS_WINDOWS)
243 uint32_t u32Alignment; /**< The sizeof(Core) differs. */
244#endif
245 /** Number of INs to this port from R3. */
246 STAMCOUNTER InR3;
247 /** Profiling IN handler overhead in R3. */
248 STAMPROFILEADV ProfInR3;
249 /** Number of OUTs to this port from R3. */
250 STAMCOUNTER OutR3;
251 /** Profiling OUT handler overhead in R3. */
252 STAMPROFILEADV ProfOutR3;
253
254 /** Number of INs to this port from R0/RC. */
255 STAMCOUNTER InRZ;
256 /** Profiling IN handler overhead in R0/RC. */
257 STAMPROFILEADV ProfInRZ;
258 /** Number of INs to this port from R0/RC which was serviced in R3. */
259 STAMCOUNTER InRZToR3;
260
261 /** Number of OUTs to this port from R0/RC. */
262 STAMCOUNTER OutRZ;
263 /** Profiling OUT handler overhead in R0/RC. */
264 STAMPROFILEADV ProfOutRZ;
265 /** Number of OUTs to this port from R0/RC which was serviced in R3. */
266 STAMCOUNTER OutRZToR3;
267} IOMIOPORTSTATS;
268/** Pointer to I/O port statistics. */
269typedef IOMIOPORTSTATS *PIOMIOPORTSTATS;
270
271
272/**
273 * The IOM trees.
274 * These are offset based the nodes and root must be in the same
275 * memory block in HC. The locations of IOM structure and the hypervisor heap
276 * are quite different in R3, R0 and RC.
277 */
278typedef struct IOMTREES
279{
280 /** Tree containing I/O port range descriptors registered for HC (IOMIOPORTRANGEHC). */
281 AVLROIOPORTTREE IOPortTreeR3;
282 /** Tree containing I/O port range descriptors registered for R0 (IOMIOPORTRANGER0). */
283 AVLROIOPORTTREE IOPortTreeR0;
284 /** Tree containing I/O port range descriptors registered for RC (IOMIOPORTRANGERC). */
285 AVLROIOPORTTREE IOPortTreeRC;
286
287 /** Tree containing the MMIO range descriptors (IOMMMIORANGE). */
288 AVLROGCPHYSTREE MMIOTree;
289
290 /** Tree containing I/O port statistics (IOMIOPORTSTATS). */
291 AVLOIOPORTTREE IOPortStatTree;
292 /** Tree containing MMIO statistics (IOMMMIOSTATS). */
293 AVLOGCPHYSTREE MMIOStatTree;
294} IOMTREES;
295/** Pointer to the IOM trees. */
296typedef IOMTREES *PIOMTREES;
297
298
299/**
300 * Converts an IOM pointer into a VM pointer.
301 * @returns Pointer to the VM structure the PGM is part of.
302 * @param pIOM Pointer to IOM instance data.
303 */
304#define IOM2VM(pIOM) ( (PVM)((char*)pIOM - pIOM->offVM) )
305
306/**
307 * IOM Data (part of VM)
308 */
309typedef struct IOM
310{
311 /** Offset to the VM structure. */
312 RTINT offVM;
313
314 /** Pointer to the trees - RC ptr. */
315 RCPTRTYPE(PIOMTREES) pTreesRC;
316 /** Pointer to the trees - R3 ptr. */
317 R3PTRTYPE(PIOMTREES) pTreesR3;
318 /** Pointer to the trees - R0 ptr. */
319 R0PTRTYPE(PIOMTREES) pTreesR0;
320
321 /** The ring-0 address of IOMMMIOHandler. */
322 R0PTRTYPE(PFNPGMR0PHYSHANDLER) pfnMMIOHandlerR0;
323 /** The RC address of IOMMMIOHandler. */
324 RCPTRTYPE(PFNPGMRCPHYSHANDLER) pfnMMIOHandlerRC;
325#if GC_ARCH_BITS == 64
326 RTRCPTR padding;
327#endif
328
329 /** @name Caching of I/O Port and MMIO ranges and statistics.
330 * (Saves quite some time in rep outs/ins instruction emulation.)
331 * @{ */
332 R3PTRTYPE(PIOMIOPORTRANGER3) pRangeLastReadR3;
333 R3PTRTYPE(PIOMIOPORTRANGER3) pRangeLastWriteR3;
334 R3PTRTYPE(PIOMIOPORTSTATS) pStatsLastReadR3;
335 R3PTRTYPE(PIOMIOPORTSTATS) pStatsLastWriteR3;
336 R3PTRTYPE(PIOMMMIORANGE) pMMIORangeLastR3;
337 R3PTRTYPE(PIOMMMIOSTATS) pMMIOStatsLastR3;
338
339 R0PTRTYPE(PIOMIOPORTRANGER0) pRangeLastReadR0;
340 R0PTRTYPE(PIOMIOPORTRANGER0) pRangeLastWriteR0;
341 R0PTRTYPE(PIOMIOPORTSTATS) pStatsLastReadR0;
342 R0PTRTYPE(PIOMIOPORTSTATS) pStatsLastWriteR0;
343 R0PTRTYPE(PIOMMMIORANGE) pMMIORangeLastR0;
344 R0PTRTYPE(PIOMMMIOSTATS) pMMIOStatsLastR0;
345
346 RCPTRTYPE(PIOMIOPORTRANGERC) pRangeLastReadRC;
347 RCPTRTYPE(PIOMIOPORTRANGERC) pRangeLastWriteRC;
348 RCPTRTYPE(PIOMIOPORTSTATS) pStatsLastReadRC;
349 RCPTRTYPE(PIOMIOPORTSTATS) pStatsLastWriteRC;
350 RCPTRTYPE(PIOMMMIORANGE) pMMIORangeLastRC;
351 RCPTRTYPE(PIOMMMIOSTATS) pMMIOStatsLastRC;
352 /** @} */
353
354 /** @name I/O Port statistics.
355 * @{ */
356 STAMCOUNTER StatInstIn;
357 STAMCOUNTER StatInstOut;
358 STAMCOUNTER StatInstIns;
359 STAMCOUNTER StatInstOuts;
360 /** @} */
361
362 /** @name MMIO statistics.
363 * @{ */
364 STAMPROFILE StatRZMMIOHandler;
365 STAMCOUNTER StatRZMMIOFailures;
366
367 STAMPROFILE StatRZInstMov;
368 STAMPROFILE StatRZInstCmp;
369 STAMPROFILE StatRZInstAnd;
370 STAMPROFILE StatRZInstOr;
371 STAMPROFILE StatRZInstXor;
372 STAMPROFILE StatRZInstBt;
373 STAMPROFILE StatRZInstTest;
374 STAMPROFILE StatRZInstXchg;
375 STAMPROFILE StatRZInstStos;
376 STAMPROFILE StatRZInstLods;
377#ifdef IOM_WITH_MOVS_SUPPORT
378 STAMPROFILEADV StatRZInstMovs;
379 STAMPROFILE StatRZInstMovsToMMIO;
380 STAMPROFILE StatRZInstMovsFromMMIO;
381 STAMPROFILE StatRZInstMovsMMIO;
382#endif
383 STAMCOUNTER StatRZInstOther;
384
385 STAMCOUNTER StatRZMMIO1Byte;
386 STAMCOUNTER StatRZMMIO2Bytes;
387 STAMCOUNTER StatRZMMIO4Bytes;
388 STAMCOUNTER StatRZMMIO8Bytes;
389
390 STAMCOUNTER StatR3MMIOHandler;
391
392 RTUINT cMovsMaxBytes;
393 RTUINT cStosMaxBytes;
394 /** @} */
395} IOM;
396/** Pointer to IOM instance data. */
397typedef IOM *PIOM;
398
399
400__BEGIN_DECLS
401
402#ifdef IN_RING3
403PIOMIOPORTSTATS iomR3IOPortStatsCreate(PVM pVM, RTIOPORT Port, const char *pszDesc);
404PIOMMMIOSTATS iomR3MMIOStatsCreate(PVM pVM, RTGCPHYS GCPhys, const char *pszDesc);
405#endif /* IN_RING3 */
406
407/**
408 * \#PF Handler callback for MMIO ranges.
409 *
410 * @returns VBox status code (appropriate for GC return).
411 *
412 * @param pVM VM Handle.
413 * @param uErrorCode CPU Error code.
414 * @param pRegFrame Trap register frame.
415 * @param pvFault The fault address (cr2).
416 * @param GCPhysFault The GC physical address corresponding to pvFault.
417 * @param pvUser Pointer to the MMIO range entry.
418 */
419VMMDECL(int) IOMMMIOHandler(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPHYS GCPhysFault, void *pvUser);
420
421#ifdef IN_RING3
422/**
423 * \#PF Handler callback for MMIO ranges.
424 *
425 * @returns VINF_SUCCESS if the handler have carried out the operation.
426 * @returns VINF_PGM_HANDLER_DO_DEFAULT if the caller should carry out the access operation.
427 * @param pVM VM Handle.
428 * @param GCPhys The physical address the guest is writing to.
429 * @param pvPhys The HC mapping of that address.
430 * @param pvBuf What the guest is reading/writing.
431 * @param cbBuf How much it's reading/writing.
432 * @param enmAccessType The access type.
433 * @param pvUser Pointer to the MMIO range entry.
434 */
435DECLCALLBACK(int) IOMR3MMIOHandler(PVM pVM, RTGCPHYS GCPhys, void *pvPhys, void *pvBuf, size_t cbBuf, PGMACCESSTYPE enmAccessType, void *pvUser);
436#endif
437
438
439/**
440 * Gets the I/O port range for the specified I/O port in the current context.
441 *
442 * @returns Pointer to I/O port range.
443 * @returns NULL if no port registered.
444 *
445 * @param pIOM IOM instance data.
446 * @param Port Port to lookup.
447 */
448DECLINLINE(CTX_SUFF(PIOMIOPORTRANGE)) iomIOPortGetRange(PIOM pIOM, RTIOPORT Port)
449{
450 CTX_SUFF(PIOMIOPORTRANGE) pRange = (CTX_SUFF(PIOMIOPORTRANGE))RTAvlroIOPortRangeGet(&pIOM->CTX_SUFF(pTrees)->CTX_SUFF(IOPortTree), Port);
451 return pRange;
452}
453
454
455/**
456 * Gets the I/O port range for the specified I/O port in the HC.
457 *
458 * @returns Pointer to I/O port range.
459 * @returns NULL if no port registered.
460 *
461 * @param pIOM IOM instance data.
462 * @param Port Port to lookup.
463 */
464DECLINLINE(PIOMIOPORTRANGER3) iomIOPortGetRangeR3(PIOM pIOM, RTIOPORT Port)
465{
466 PIOMIOPORTRANGER3 pRange = (PIOMIOPORTRANGER3)RTAvlroIOPortRangeGet(&pIOM->CTX_SUFF(pTrees)->IOPortTreeR3, Port);
467 return pRange;
468}
469
470
471/**
472 * Gets the MMIO range for the specified physical address in the current context.
473 *
474 * @returns Pointer to MMIO range.
475 * @returns NULL if address not in a MMIO range.
476 *
477 * @param pIOM IOM instance data.
478 * @param GCPhys Physical address to lookup.
479 */
480DECLINLINE(PIOMMMIORANGE) iomMMIOGetRange(PIOM pIOM, RTGCPHYS GCPhys)
481{
482 PIOMMMIORANGE pRange = pIOM->CTX_SUFF(pMMIORangeLast);
483 if ( !pRange
484 || GCPhys - pRange->GCPhys >= pRange->cb)
485 pIOM->CTX_SUFF(pMMIORangeLast) = pRange = (PIOMMMIORANGE)RTAvlroGCPhysRangeGet(&pIOM->CTX_SUFF(pTrees)->MMIOTree, GCPhys);
486 return pRange;
487}
488
489
490#ifdef VBOX_WITH_STATISTICS
491/**
492 * Gets the MMIO statistics record.
493 *
494 * In ring-3 this will lazily create missing records, while in GC/R0 the caller has to
495 * return the appropriate status to defer the operation to ring-3.
496 *
497 * @returns Pointer to MMIO stats.
498 * @returns NULL if not found (R0/GC), or out of memory (R3).
499 *
500 * @param pIOM IOM instance data.
501 * @param GCPhys Physical address to lookup.
502 * @param pRange The MMIO range.
503 */
504DECLINLINE(PIOMMMIOSTATS) iomMMIOGetStats(PIOM pIOM, RTGCPHYS GCPhys, PIOMMMIORANGE pRange)
505{
506 /* For large ranges, we'll put everything on the first byte. */
507 if (pRange->cb > PAGE_SIZE)
508 GCPhys = pRange->GCPhys;
509
510 PIOMMMIOSTATS pStats = pIOM->CTX_SUFF(pMMIOStatsLast);
511 if ( !pStats
512 || pStats->Core.Key != GCPhys)
513 {
514 pStats = (PIOMMMIOSTATS)RTAvloGCPhysGet(&pIOM->CTX_SUFF(pTrees)->MMIOStatTree, GCPhys);
515# ifdef IN_RING3
516 if (!pStats)
517 pStats = iomR3MMIOStatsCreate(IOM2VM(pIOM), GCPhys, pRange->pszDesc);
518# endif
519 }
520 return pStats;
521}
522#endif
523
524/* Disassembly helpers used in IOMAll.cpp & IOMAllMMIO.cpp */
525bool iomGetRegImmData(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, uint64_t *pu64Data, unsigned *pcbSize);
526bool iomSaveDataToReg(PDISCPUSTATE pCpu, PCOP_PARAMETER pParam, PCPUMCTXCORE pRegFrame, uint64_t u32Data);
527
528__END_DECLS
529
530
531#ifdef IN_RING3
532
533#endif
534
535/** @} */
536
537#endif /* ___IOMInternal_h */
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