VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMInternal.h@ 14981

Last change on this file since 14981 was 14680, checked in by vboxsync, 16 years ago

HWVMX,VMM: make 100% sure the logger doesn't screw us during the guest/host setup.
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1/* $Id: VMMInternal.h 14680 2008-11-27 02:08:02Z vboxsync $ */
2/** @file
3 * VMM - 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 ___VMMInternal_h
23#define ___VMMInternal_h
24
25#include <VBox/cdefs.h>
26#include <VBox/stam.h>
27#include <VBox/log.h>
28#include <iprt/critsect.h>
29
30
31#if !defined(IN_VMM_R3) && !defined(IN_VMM_R0) && !defined(IN_VMM_RC)
32# error "Not in VMM! This is an internal header!"
33#endif
34
35
36/** @defgroup grp_vmm_int Internals
37 * @ingroup grp_vmm
38 * @internal
39 * @{
40 */
41
42/** @def VBOX_WITH_RC_RELEASE_LOGGING
43 * Enables RC release logging. */
44#define VBOX_WITH_RC_RELEASE_LOGGING
45
46/** @def VBOX_WITH_R0_LOGGING
47 * Enables Ring-0 logging (non-release).
48 *
49 * Ring-0 logging isn't 100% safe yet (thread id reuse / process exit cleanup),
50 * so you have to sign up here by adding your defined(DEBUG_<userid>) to the
51 * #if, or by adding VBOX_WITH_R0_LOGGING to your LocalConfig.kmk.
52 *
53 * You might also wish to enable the AssertMsg1/2 overrides in VMMR0.cpp when
54 * enabling this.
55 */
56#if defined(DEBUG_sandervl) || defined(DEBUG_frank) || defined(DOXYGEN_RUNNING)
57# define VBOX_WITH_R0_LOGGING
58#endif
59
60
61/**
62 * Converts a VMM pointer into a VM pointer.
63 * @returns Pointer to the VM structure the VMM is part of.
64 * @param pVMM Pointer to VMM instance data.
65 */
66#define VMM2VM(pVMM) ( (PVM)((char*)pVMM - pVMM->offVM) )
67
68
69/**
70 * Switcher function, HC to RC.
71 *
72 * @param pVM The VM handle.
73 * @returns Return code indicating the action to take.
74 */
75typedef DECLASMTYPE(int) FNVMMSWITCHERHC(PVM pVM);
76/** Pointer to switcher function. */
77typedef FNVMMSWITCHERHC *PFNVMMSWITCHERHC;
78
79/**
80 * Switcher function, RC to HC.
81 *
82 * @param rc VBox status code.
83 */
84typedef DECLASMTYPE(void) FNVMMSWITCHERRC(int rc);
85/** Pointer to switcher function. */
86typedef FNVMMSWITCHERRC *PFNVMMSWITCHERRC;
87
88
89/**
90 * The ring-0 logger instance wrapper.
91 *
92 * We need to be able to find the VM handle from the logger instance, so we wrap
93 * it in this structure.
94 */
95typedef struct VMMR0LOGGER
96{
97 /** Pointer to the VM handle. */
98 R0PTRTYPE(PVM) pVM;
99 /** Size of the allocated logger instance (Logger). */
100 uint32_t cbLogger;
101 /** Flag indicating whether we've create the logger Ring-0 instance yet. */
102 bool fCreated;
103 /** Flag indicating whether we've disabled flushing (world switch) or not. */
104 bool fFlushingDisabled;
105#if HC_ARCH_BITS == 32
106 uint32_t u32Alignment;
107#endif
108 /** The ring-0 logger instance. This extends beyond the size. */
109 RTLOGGER Logger;
110} VMMR0LOGGER;
111/** Pointer to a ring-0 logger instance wrapper. */
112typedef VMMR0LOGGER *PVMMR0LOGGER;
113
114
115/**
116 * Jump buffer for the setjmp/longjmp like constructs used to
117 * quickly 'call' back into Ring-3.
118 */
119typedef struct VMMR0JMPBUF
120{
121 /** Traditional jmp_buf stuff
122 * @{ */
123#if HC_ARCH_BITS == 32
124 uint32_t ebx;
125 uint32_t esi;
126 uint32_t edi;
127 uint32_t ebp;
128 uint32_t esp;
129 uint32_t eip;
130 uint32_t u32Padding;
131#endif
132#if HC_ARCH_BITS == 64
133 uint64_t rbx;
134# ifdef RT_OS_WINDOWS
135 uint64_t rsi;
136 uint64_t rdi;
137# endif
138 uint64_t rbp;
139 uint64_t r12;
140 uint64_t r13;
141 uint64_t r14;
142 uint64_t r15;
143 uint64_t rsp;
144 uint64_t rip;
145#endif
146 /** @} */
147
148 /** Flag that indicates that we've done a ring-3 call. */
149 bool fInRing3Call;
150 /** The number of bytes we've saved. */
151 uint32_t cbSavedStack;
152 /** Pointer to the buffer used to save the stack.
153 * This is assumed to be 8KB. */
154 RTR0PTR pvSavedStack;
155 /** Esp we we match against esp on resume to make sure the stack wasn't relocated. */
156 RTHCUINTREG SpCheck;
157 /** The esp we should resume execution with after the restore. */
158 RTHCUINTREG SpResume;
159} VMMR0JMPBUF;
160/** Pointer to a ring-0 jump buffer. */
161typedef VMMR0JMPBUF *PVMMR0JMPBUF;
162
163
164/**
165 * VMM Data (part of VM)
166 */
167typedef struct VMM
168{
169 /** Offset to the VM structure.
170 * See VMM2VM(). */
171 RTINT offVM;
172
173 /** @name World Switcher and Related
174 * @{
175 */
176 /** Size of the core code. */
177 RTUINT cbCoreCode;
178 /** Physical address of core code. */
179 RTHCPHYS HCPhysCoreCode;
180 /** Pointer to core code ring-3 mapping - contiguous memory.
181 * At present this only means the context switcher code. */
182 RTR3PTR pvCoreCodeR3;
183 /** Pointer to core code ring-0 mapping - contiguous memory.
184 * At present this only means the context switcher code. */
185 RTR0PTR pvCoreCodeR0;
186 /** Pointer to core code guest context mapping. */
187 RTRCPTR pvCoreCodeRC;
188 RTRCPTR pRCPadding0; /**< Alignment padding */
189#ifdef VBOX_WITH_NMI
190 /** The guest context address of the APIC (host) mapping. */
191 RTRCPTR GCPtrApicBase;
192 RTRCPTR pRCPadding1; /**< Alignment padding */
193#endif
194 /** The current switcher.
195 * This will be set before the VMM is fully initialized. */
196 VMMSWITCHER enmSwitcher;
197 /** Flag to disable the switcher permanently (VMX) (boolean) */
198 bool fSwitcherDisabled;
199 /** Array of offsets to the different switchers within the core code. */
200 RTUINT aoffSwitchers[VMMSWITCHER_MAX];
201 uint32_t u32Padding0; /**< Alignment padding. */
202
203 /** The last RC/R0 return code. */
204 RTINT iLastGZRc;
205 /** Resume Guest Execution. See CPUMGCResumeGuest(). */
206 RTRCPTR pfnCPUMRCResumeGuest;
207 /** Resume Guest Execution in V86 mode. See CPUMGCResumeGuestV86(). */
208 RTRCPTR pfnCPUMRCResumeGuestV86;
209 /** Call Trampoline. See vmmGCCallTrampoline(). */
210 RTRCPTR pfnCallTrampolineRC;
211 /** Guest to host switcher entry point. */
212 RCPTRTYPE(PFNVMMSWITCHERRC) pfnGuestToHostRC;
213 /** Host to guest switcher entry point. */
214 R0PTRTYPE(PFNVMMSWITCHERHC) pfnHostToGuestR0;
215 /** @} */
216
217 /** VMM stack, pointer to the top of the stack in R3.
218 * Stack is allocated from the hypervisor heap and is page aligned
219 * and always writable in RC. */
220 R3PTRTYPE(uint8_t *) pbEMTStackR3;
221 /** Pointer to the bottom of the stack - needed for doing relocations. */
222 RCPTRTYPE(uint8_t *) pbEMTStackRC;
223 /** Pointer to the bottom of the stack - needed for doing relocations. */
224 RCPTRTYPE(uint8_t *) pbEMTStackBottomRC;
225
226 /** @name Logging
227 * @{
228 */
229 /** Size of the allocated logger instance (pRCLoggerRC/pRCLoggerR3). */
230 uint32_t cbRCLogger;
231 /** Pointer to the RC logger instance - RC Ptr.
232 * This is NULL if logging is disabled. */
233 RCPTRTYPE(PRTLOGGERRC) pRCLoggerRC;
234 /** Pointer to the GC logger instance - R3 Ptr.
235 * This is NULL if logging is disabled. */
236 R3PTRTYPE(PRTLOGGERRC) pRCLoggerR3;
237 /** Pointer to the R0 logger instance - R3 Ptr.
238 * This is NULL if logging is disabled. */
239 R3PTRTYPE(PVMMR0LOGGER) pR0LoggerR3;
240 /** Pointer to the R0 logger instance - R0 Ptr.
241 * This is NULL if logging is disabled. */
242 R0PTRTYPE(PVMMR0LOGGER) pR0LoggerR0;
243 /** Pointer to the GC release logger instance - R3 Ptr. */
244 R3PTRTYPE(PRTLOGGERRC) pRCRelLoggerR3;
245 /** Pointer to the GC release logger instance - RC Ptr. */
246 RCPTRTYPE(PRTLOGGERRC) pRCRelLoggerRC;
247 /** Size of the allocated release logger instance (pRCRelLoggerRC/pRCRelLoggerR3).
248 * This may differ from cbRCLogger. */
249 uint32_t cbRCRelLogger;
250 /** @} */
251
252
253 /** Global VM critical section. */
254 RTCRITSECT CritSectVMLock;
255
256 /** The EMT yield timer. */
257 PTMTIMERR3 pYieldTimer;
258 /** The period to the next timeout when suspended or stopped.
259 * This is 0 when running. */
260 uint32_t cYieldResumeMillies;
261 /** The EMT yield timer interval (milliseconds). */
262 uint32_t cYieldEveryMillies;
263#if HC_ARCH_BITS == 32
264 RTR3PTR pR3Padding1; /**< Alignment padding. */
265#endif
266 /** The timestamp of the previous yield. (nano) */
267 uint64_t u64LastYield;
268
269 /** @name CallHost
270 * @todo SMP: per vCPU
271 * @{ */
272 /** The pending operation. */
273 VMMCALLHOST enmCallHostOperation;
274 /** The result of the last operation. */
275 int32_t rcCallHost;
276 /** The argument to the operation. */
277 uint64_t u64CallHostArg;
278 /** The Ring-0 jmp buffer. */
279 VMMR0JMPBUF CallHostR0JmpBuf;
280 /** @} */
281
282 /** Buffer for storing the standard assertion message for a ring-0 assertion.
283 * Used for saving the assertion message text for the release log and guru
284 * meditation dump. */
285 char szRing0AssertMsg1[256];
286 /** Buffer for storing the custom message for a ring-0 assertion. */
287 char szRing0AssertMsg2[256];
288
289 /** Number of VMMR0_DO_RUN_GC calls. */
290 STAMCOUNTER StatRunRC;
291
292 /** Statistics for each of the RC/R0 return codes.
293 * @{ */
294 STAMCOUNTER StatRZRetNormal;
295 STAMCOUNTER StatRZRetInterrupt;
296 STAMCOUNTER StatRZRetInterruptHyper;
297 STAMCOUNTER StatRZRetGuestTrap;
298 STAMCOUNTER StatRZRetRingSwitch;
299 STAMCOUNTER StatRZRetRingSwitchInt;
300 STAMCOUNTER StatRZRetExceptionPrivilege;
301 STAMCOUNTER StatRZRetStaleSelector;
302 STAMCOUNTER StatRZRetIRETTrap;
303 STAMCOUNTER StatRZRetEmulate;
304 STAMCOUNTER StatRZRetPatchEmulate;
305 STAMCOUNTER StatRZRetIORead;
306 STAMCOUNTER StatRZRetIOWrite;
307 STAMCOUNTER StatRZRetMMIORead;
308 STAMCOUNTER StatRZRetMMIOWrite;
309 STAMCOUNTER StatRZRetMMIOPatchRead;
310 STAMCOUNTER StatRZRetMMIOPatchWrite;
311 STAMCOUNTER StatRZRetMMIOReadWrite;
312 STAMCOUNTER StatRZRetLDTFault;
313 STAMCOUNTER StatRZRetGDTFault;
314 STAMCOUNTER StatRZRetIDTFault;
315 STAMCOUNTER StatRZRetTSSFault;
316 STAMCOUNTER StatRZRetPDFault;
317 STAMCOUNTER StatRZRetCSAMTask;
318 STAMCOUNTER StatRZRetSyncCR3;
319 STAMCOUNTER StatRZRetMisc;
320 STAMCOUNTER StatRZRetPatchInt3;
321 STAMCOUNTER StatRZRetPatchPF;
322 STAMCOUNTER StatRZRetPatchGP;
323 STAMCOUNTER StatRZRetPatchIretIRQ;
324 STAMCOUNTER StatRZRetPageOverflow;
325 STAMCOUNTER StatRZRetRescheduleREM;
326 STAMCOUNTER StatRZRetToR3;
327 STAMCOUNTER StatRZRetTimerPending;
328 STAMCOUNTER StatRZRetInterruptPending;
329 STAMCOUNTER StatRZRetCallHost;
330 STAMCOUNTER StatRZRetPATMDuplicateFn;
331 STAMCOUNTER StatRZRetPGMChangeMode;
332 STAMCOUNTER StatRZRetEmulHlt;
333 STAMCOUNTER StatRZRetPendingRequest;
334#ifndef VBOX_WITH_NEW_PHYS_CODE
335 STAMCOUNTER StatRZCallPGMGrowRAM;
336#endif
337 STAMCOUNTER StatRZCallPDMLock;
338 STAMCOUNTER StatRZCallLogFlush;
339 STAMCOUNTER StatRZCallPDMQueueFlush;
340 STAMCOUNTER StatRZCallPGMPoolGrow;
341 STAMCOUNTER StatRZCallPGMMapChunk;
342 STAMCOUNTER StatRZCallPGMAllocHandy;
343 STAMCOUNTER StatRZCallRemReplay;
344 STAMCOUNTER StatRZCallVMSetError;
345 STAMCOUNTER StatRZCallVMSetRuntimeError;
346 STAMCOUNTER StatRZCallPGMLock;
347 /** @} */
348} VMM;
349/** Pointer to VMM. */
350typedef VMM *PVMM;
351
352
353/**
354 * VMMCPU Data (part of VMCPU)
355 */
356typedef struct VMMCPU
357{
358 /** Offset to the VMCPU structure.
359 * See VMM2VMCPU(). */
360 RTINT offVMCPU;
361} VMMCPU;
362/** Pointer to VMMCPU. */
363typedef VMMCPU *PVMMCPU;
364
365
366/**
367 * The VMMGCEntry() codes.
368 */
369typedef enum VMMGCOPERATION
370{
371 /** Do GC module init. */
372 VMMGC_DO_VMMGC_INIT = 1,
373
374 /** The first Trap testcase. */
375 VMMGC_DO_TESTCASE_TRAP_FIRST = 0x0dead000,
376 /** Trap 0 testcases, uArg selects the variation. */
377 VMMGC_DO_TESTCASE_TRAP_0 = VMMGC_DO_TESTCASE_TRAP_FIRST,
378 /** Trap 1 testcases, uArg selects the variation. */
379 VMMGC_DO_TESTCASE_TRAP_1,
380 /** Trap 2 testcases, uArg selects the variation. */
381 VMMGC_DO_TESTCASE_TRAP_2,
382 /** Trap 3 testcases, uArg selects the variation. */
383 VMMGC_DO_TESTCASE_TRAP_3,
384 /** Trap 4 testcases, uArg selects the variation. */
385 VMMGC_DO_TESTCASE_TRAP_4,
386 /** Trap 5 testcases, uArg selects the variation. */
387 VMMGC_DO_TESTCASE_TRAP_5,
388 /** Trap 6 testcases, uArg selects the variation. */
389 VMMGC_DO_TESTCASE_TRAP_6,
390 /** Trap 7 testcases, uArg selects the variation. */
391 VMMGC_DO_TESTCASE_TRAP_7,
392 /** Trap 8 testcases, uArg selects the variation. */
393 VMMGC_DO_TESTCASE_TRAP_8,
394 /** Trap 9 testcases, uArg selects the variation. */
395 VMMGC_DO_TESTCASE_TRAP_9,
396 /** Trap 0a testcases, uArg selects the variation. */
397 VMMGC_DO_TESTCASE_TRAP_0A,
398 /** Trap 0b testcases, uArg selects the variation. */
399 VMMGC_DO_TESTCASE_TRAP_0B,
400 /** Trap 0c testcases, uArg selects the variation. */
401 VMMGC_DO_TESTCASE_TRAP_0C,
402 /** Trap 0d testcases, uArg selects the variation. */
403 VMMGC_DO_TESTCASE_TRAP_0D,
404 /** Trap 0e testcases, uArg selects the variation. */
405 VMMGC_DO_TESTCASE_TRAP_0E,
406 /** The last trap testcase (exclusive). */
407 VMMGC_DO_TESTCASE_TRAP_LAST,
408 /** Testcase for checking interrupt forwarding. */
409 VMMGC_DO_TESTCASE_HYPER_INTERRUPT,
410 /** Switching testing and profiling stub. */
411 VMMGC_DO_TESTCASE_NOP,
412 /** Testcase for checking interrupt masking.. */
413 VMMGC_DO_TESTCASE_INTERRUPT_MASKING,
414 /** Switching testing and profiling stub. */
415 VMMGC_DO_TESTCASE_HWACCM_NOP,
416
417 /** The usual 32-bit hack. */
418 VMMGC_DO_32_BIT_HACK = 0x7fffffff
419} VMMGCOPERATION;
420
421
422__BEGIN_DECLS
423
424#ifdef IN_RING3
425int vmmR3SwitcherInit(PVM pVM);
426void vmmR3SwitcherRelocate(PVM pVM, RTGCINTPTR offDelta);
427#endif /* IN_RING3 */
428
429#ifdef IN_RING0
430/**
431 * World switcher assembly routine.
432 * It will call VMMGCEntry().
433 *
434 * @returns return code from VMMGCEntry().
435 * @param pVM The VM in question.
436 * @param uArg See VMMGCEntry().
437 * @internal
438 */
439DECLASM(int) vmmR0WorldSwitch(PVM pVM, unsigned uArg);
440
441/**
442 * Callback function for vmmR0CallHostSetJmp.
443 *
444 * @returns VBox status code.
445 * @param pVM The VM handle.
446 */
447typedef DECLCALLBACK(int) FNVMMR0SETJMP(PVM pVM, PVMCPU pVCpu);
448/** Pointer to FNVMMR0SETJMP(). */
449typedef FNVMMR0SETJMP *PFNVMMR0SETJMP;
450
451/**
452 * The setjmp variant used for calling Ring-3.
453 *
454 * This differs from the normal setjmp in that it will resume VMMR0CallHost if we're
455 * in the middle of a ring-3 call. Another differences is the function pointer and
456 * argument. This has to do with resuming code and the stack frame of the caller.
457 *
458 * @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallHostLongJmp.
459 * @param pJmpBuf The jmp_buf to set.
460 * @param pfn The function to be called when not resuming..
461 * @param pVM The argument of that function.
462 */
463DECLASM(int) vmmR0CallHostSetJmp(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMP pfn, PVM pVM, PVMCPU pVCpu);
464
465/**
466 * Callback function for vmmR0CallHostSetJmpEx.
467 *
468 * @returns VBox status code.
469 * @param pvUser The user argument.
470 */
471typedef DECLCALLBACK(int) FNVMMR0SETJMPEX(void *pvUser);
472/** Pointer to FNVMMR0SETJMP(). */
473typedef FNVMMR0SETJMPEX *PFNVMMR0SETJMPEX;
474
475/**
476 * Same as vmmR0CallHostSetJmp except for the function signature.
477 *
478 * @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallHostLongJmp.
479 * @param pJmpBuf The jmp_buf to set.
480 * @param pfn The function to be called when not resuming..
481 * @param pvUser The argument of that function.
482 */
483DECLASM(int) vmmR0CallHostSetJmpEx(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMPEX pfn, void *pvUser);
484
485
486/**
487 * Worker for VMMR0CallHost.
488 * This will save the stack and registers.
489 *
490 * @returns rc.
491 * @param pJmpBuf Pointer to the jump buffer.
492 * @param rc The return code.
493 */
494DECLASM(int) vmmR0CallHostLongJmp(PVMMR0JMPBUF pJmpBuf, int rc);
495
496/**
497 * Internal R0 logger worker: Logger wrapper.
498 */
499VMMR0DECL(void) vmmR0LoggerWrapper(const char *pszFormat, ...);
500
501/**
502 * Internal R0 logger worker: Flush logger.
503 *
504 * @param pLogger The logger instance to flush.
505 * @remark This function must be exported!
506 */
507VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger);
508
509#endif /* IN_RING0 */
510#ifdef IN_RC
511
512/**
513 * Internal GC logger worker: Logger wrapper.
514 */
515VMMRCDECL(void) vmmGCLoggerWrapper(const char *pszFormat, ...);
516
517/**
518 * Internal GC release logger worker: Logger wrapper.
519 */
520VMMRCDECL(void) vmmGCRelLoggerWrapper(const char *pszFormat, ...);
521
522/**
523 * Internal GC logger worker: Flush logger.
524 *
525 * @returns VINF_SUCCESS.
526 * @param pLogger The logger instance to flush.
527 * @remark This function must be exported!
528 */
529VMMRCDECL(int) vmmGCLoggerFlush(PRTLOGGERRC pLogger);
530
531/** @name Trap testcases and related labels.
532 * @{ */
533DECLASM(void) vmmGCEnableWP(void);
534DECLASM(void) vmmGCDisableWP(void);
535DECLASM(int) vmmGCTestTrap3(void);
536DECLASM(int) vmmGCTestTrap8(void);
537DECLASM(int) vmmGCTestTrap0d(void);
538DECLASM(int) vmmGCTestTrap0e(void);
539DECLASM(int) vmmGCTestTrap0e_FaultEIP(void); /**< a label */
540DECLASM(int) vmmGCTestTrap0e_ResumeEIP(void); /**< a label */
541/** @} */
542
543#endif /* IN_RC */
544
545__END_DECLS
546
547/** @} */
548
549#endif
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