VirtualBox

source: vbox/trunk/src/VBox/VMM/VMMInternal.h@ 3696

Last change on this file since 3696 was 3696, checked in by vboxsync, 17 years ago

double underscore cleanup.
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File size: 15.8 KB
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1/* $Id: VMMInternal.h 3696 2007-07-18 17:00:33Z vboxsync $ */
2/** @file
3 * VMM - Internal header file.
4 */
5
6/*
7 * Copyright (C) 2006-2007 innotek GmbH
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 as published by the Free Software Foundation,
13 * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14 * distribution. VirtualBox OSE is distributed in the hope that it will
15 * be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * If you received this file as part of a commercial VirtualBox
18 * distribution, then only the terms of your commercial VirtualBox
19 * license agreement apply instead of the previous paragraph.
20 */
21
22#ifndef __VMMInternal_h__
23#define __VMMInternal_h__
24
25#include <VBox/cdefs.h>
26#include <x86context.h>
27#include <VBox/stam.h>
28#include <VBox/log.h>
29#include <iprt/critsect.h>
30
31
32#if !defined(IN_VMM_R3) && !defined(IN_VMM_R0) && !defined(IN_VMM_GC)
33# error "Not in VMM! This is an internal header!"
34#endif
35
36
37/** @defgroup grp_vmm_int Internals
38 * @ingroup grp_vmm
39 * @internal
40 * @{
41 */
42
43/** @def VBOX_WITH_GC_AND_R0_RELEASE_LOG
44 * Enabled GC and R0 release logging (the latter is not implemented yet). */
45#define VBOX_WITH_GC_AND_R0_RELEASE_LOG
46
47
48/**
49 * Converts a VMM pointer into a VM pointer.
50 * @returns Pointer to the VM structure the VMM is part of.
51 * @param pVMM Pointer to VMM instance data.
52 */
53#define VMM2VM(pVMM) ( (PVM)((char*)pVMM - pVMM->offVM) )
54
55
56/**
57 * Switcher function, HC to GC.
58 *
59 * @param pVM The VM handle.
60 * @returns Return code indicating the action to take.
61 */
62typedef DECLASMTYPE(int) FNVMMSWITCHERHC(PVM pVM);
63/** Pointer to switcher function. */
64typedef FNVMMSWITCHERHC *PFNVMMSWITCHERHC;
65
66/**
67 * Switcher function, GC to HC.
68 *
69 * @param rc VBox status code.
70 */
71typedef DECLASMTYPE(void) FNVMMSWITCHERGC(int rc);
72/** Pointer to switcher function. */
73typedef FNVMMSWITCHERGC *PFNVMMSWITCHERGC;
74
75
76/**
77 * The ring-0 logger instance.
78 * We need to be able to find the VM handle from the logger instance.
79 */
80typedef struct VMMR0LOGGER
81{
82 /** Pointer to the VM handle. */
83 PVM pVM;
84 /** Size of the allocated logger instance (Logger). */
85 uint32_t cbLogger;
86 /** Flag indicating whether we've create the logger Ring-0 instance yet. */
87 bool fCreated;
88#if HC_ARCH_BITS == 32
89 uint32_t u32Alignment;
90#endif
91 /** The ring-0 logger instance. This extends beyon the size.*/
92 RTLOGGER Logger;
93} VMMR0LOGGER, *PVMMR0LOGGER;
94
95
96/**
97 * Jump buffer for the setjmp/longjmp like constructs used to
98 * quickly 'call' back into Ring-3.
99 */
100typedef struct VMMR0JMPBUF
101{
102 /** Tranditional jmp_buf stuff
103 * @{ */
104#if HC_ARCH_BITS == 32
105 uint32_t ebx;
106 uint32_t esi;
107 uint32_t edi;
108 uint32_t ebp;
109 uint32_t esp;
110 uint32_t eip;
111 uint32_t u32Padding;
112#endif
113#if HC_ARCH_BITS == 64
114 uint64_t rbx;
115# ifdef RT_OS_WINDOWS
116 uint64_t rsi;
117 uint64_t rdi;
118# endif
119 uint64_t rbp;
120 uint64_t r12;
121 uint64_t r13;
122 uint64_t r14;
123 uint64_t r15;
124 uint64_t rsp;
125 uint64_t rip;
126#endif
127 /** @} */
128
129 /** Flag that indicates that we've done a ring-3 call. */
130 bool fInRing3Call;
131 /** The number of bytes we've saved. */
132 uint32_t cbSavedStack;
133 /** Pointer to the buffer used to save the stack.
134 * This is assumed to be 8KB. */
135 RTR0PTR pvSavedStack;
136 /** Esp we we match against esp on resume to make sure the stack wasn't relocated. */
137 RTHCUINTREG SpCheck;
138 /** The esp we should resume execution with after the restore. */
139 RTHCUINTREG SpResume;
140} VMMR0JMPBUF, *PVMMR0JMPBUF;
141
142
143/**
144 * VMM Data (part of VMM)
145 */
146typedef struct VMM
147{
148 /** Offset to the VM structure.
149 * See VMM2VM(). */
150 RTINT offVM;
151
152 /** Size of the core code. */
153 RTUINT cbCoreCode;
154 /** Physical address of core code. */
155 RTHCPHYS HCPhysCoreCode;
156/** @todo pvHCCoreCodeR3 -> pvCoreCodeR3, pvHCCoreCodeR0 -> pvCoreCodeR0 */
157 /** Pointer to core code ring-3 mapping - contiguous memory.
158 * At present this only means the context switcher code. */
159 RTR3PTR pvHCCoreCodeR3;
160 /** Pointer to core code ring-0 mapping - contiguous memory.
161 * At present this only means the context switcher code. */
162 RTR0PTR pvHCCoreCodeR0;
163 /** Pointer to core code guest context mapping. */
164 RTGCPTR pvGCCoreCode;
165#ifdef VBOX_WITH_NMI
166 /** The guest context address of the APIC (host) mapping. */
167 RTGCPTR GCPtrApicBase;
168 RTGCPTR pGCPadding0; /**< Alignment padding */
169#endif
170 /** The current switcher.
171 * This will be set before the VMM is fully initialized. */
172 VMMSWITCHER enmSwitcher;
173 /** Array of offsets to the different switchers within the core code. */
174 RTUINT aoffSwitchers[VMMSWITCHER_MAX];
175 /** Flag to disable the switcher permanently (VMX) (boolean) */
176 bool fSwitcherDisabled;
177
178 /** Host to guest switcher entry point. */
179 R0PTRTYPE(PFNVMMSWITCHERHC) pfnR0HostToGuest;
180 /** Guest to host switcher entry point. */
181 GCPTRTYPE(PFNVMMSWITCHERGC) pfnGCGuestToHost;
182 /** Call Trampoline. See vmmGCCallTrampoline(). */
183 RTGCPTR pfnGCCallTrampoline;
184
185 /** Resume Guest Execution. See CPUMGCResumeGuest(). */
186 RTGCPTR pfnCPUMGCResumeGuest;
187 /** Resume Guest Execution in V86 mode. See CPUMGCResumeGuestV86(). */
188 RTGCPTR pfnCPUMGCResumeGuestV86;
189 /** The last GC return code. */
190 RTINT iLastGCRc;
191#if HC_ARCH_BITS == 64 && GC_ARCH_BITS == 32
192 uint32_t u32Padding0; /**< Alignment padding. */
193#endif
194
195 /** VMM stack, pointer to the top of the stack in HC.
196 * Stack is allocated from the hypervisor heap and is page aligned
197 * and always writable in GC. */
198 HCPTRTYPE(uint8_t *) pbHCStack;
199 /** Pointer to the bottom of the stack - needed for doing relocations. */
200 GCPTRTYPE(uint8_t *) pbGCStack;
201 /** Pointer to the bottom of the stack - needed for doing relocations. */
202 GCPTRTYPE(uint8_t *) pbGCStackBottom;
203
204 /** Pointer to the GC logger instance - GC Ptr.
205 * This is NULL if logging is disabled. */
206 GCPTRTYPE(PRTLOGGERGC) pLoggerGC;
207 /** Size of the allocated logger instance (pLoggerGC/pLoggerHC). */
208 RTUINT cbLoggerGC;
209 /** Pointer to the GC logger instance - HC Ptr.
210 * This is NULL if logging is disabled. */
211 HCPTRTYPE(PRTLOGGERGC) pLoggerHC;
212
213 /** Pointer to the R0 logger instance.
214 * This is NULL if logging is disabled. */
215 HCPTRTYPE(PVMMR0LOGGER) pR0Logger;
216
217#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
218 /** Pointer to the GC release logger instance - GC Ptr. */
219 GCPTRTYPE(PRTLOGGERGC) pRelLoggerGC;
220 /** Size of the allocated release logger instance (pRelLoggerGC/pRelLoggerHC).
221 * This may differ from cbLoggerGC. */
222 RTUINT cbRelLoggerGC;
223 /** Pointer to the GC release logger instance - HC Ptr. */
224 HCPTRTYPE(PRTLOGGERGC) pRelLoggerHC;
225#endif /* VBOX_WITH_GC_AND_R0_RELEASE_LOG */
226
227 /** Global VM critical section. */
228 RTCRITSECT CritSectVMLock;
229
230 /** The EMT yield timer. */
231 PTMTIMERHC pYieldTimer;
232 /** The period to the next timeout when suspended or stopped.
233 * This is 0 when running. */
234 uint32_t cYieldResumeMillies;
235 /** The EMT yield timer interval (milliseconds). */
236 uint32_t cYieldEveryMillies;
237#if HC_ARCH_BITS == 32
238 uint32_t u32Padding0; /**< Alignment padding. */
239#endif
240 /** The timestamp of the previous yield. (nano) */
241 uint64_t u64LastYield;
242
243 /** @name CallHost
244 * @{ */
245 /** The pending operation. */
246 VMMCALLHOST enmCallHostOperation;
247 /** The result of the last operation. */
248 int32_t rcCallHost;
249 /** The argument to the operation. */
250 uint64_t u64CallHostArg;
251 /** The Ring-0 jmp buffer. */
252 VMMR0JMPBUF CallHostR0JmpBuf;
253 /** @} */
254
255 /** Number of VMMR0_DO_RUN_GC calls. */
256 STAMCOUNTER StatRunGC;
257 /** Statistics for each of the GC return codes.
258 * @{ */
259 STAMCOUNTER StatGCRetNormal;
260 STAMCOUNTER StatGCRetInterrupt;
261 STAMCOUNTER StatGCRetInterruptHyper;
262 STAMCOUNTER StatGCRetGuestTrap;
263 STAMCOUNTER StatGCRetRingSwitch;
264 STAMCOUNTER StatGCRetRingSwitchInt;
265 STAMCOUNTER StatGCRetExceptionPrivilege;
266 STAMCOUNTER StatGCRetStaleSelector;
267 STAMCOUNTER StatGCRetIRETTrap;
268 STAMCOUNTER StatGCRetEmulate;
269 STAMCOUNTER StatGCRetPatchEmulate;
270 STAMCOUNTER StatGCRetIORead;
271 STAMCOUNTER StatGCRetIOWrite;
272 STAMCOUNTER StatGCRetMMIORead;
273 STAMCOUNTER StatGCRetMMIOWrite;
274 STAMCOUNTER StatGCRetMMIOPatchRead;
275 STAMCOUNTER StatGCRetMMIOPatchWrite;
276 STAMCOUNTER StatGCRetMMIOReadWrite;
277 STAMCOUNTER StatGCRetLDTFault;
278 STAMCOUNTER StatGCRetGDTFault;
279 STAMCOUNTER StatGCRetIDTFault;
280 STAMCOUNTER StatGCRetTSSFault;
281 STAMCOUNTER StatGCRetPDFault;
282 STAMCOUNTER StatGCRetCSAMTask;
283 STAMCOUNTER StatGCRetSyncCR3;
284 STAMCOUNTER StatGCRetMisc;
285 STAMCOUNTER StatGCRetPatchInt3;
286 STAMCOUNTER StatGCRetPatchPF;
287 STAMCOUNTER StatGCRetPatchGP;
288 STAMCOUNTER StatGCRetPatchIretIRQ;
289 STAMCOUNTER StatGCRetPageOverflow;
290 STAMCOUNTER StatGCRetRescheduleREM;
291 STAMCOUNTER StatGCRetToR3;
292 STAMCOUNTER StatGCRetTimerPending;
293 STAMCOUNTER StatGCRetInterruptPending;
294 STAMCOUNTER StatGCRetCallHost;
295 STAMCOUNTER StatGCRetPATMDuplicateFn;
296 STAMCOUNTER StatGCRetPGMChangeMode;
297 STAMCOUNTER StatGCRetEmulHlt;
298 STAMCOUNTER StatGCRetPendingRequest;
299 STAMCOUNTER StatGCRetPGMGrowRAM;
300 STAMCOUNTER StatGCRetPDMLock;
301 STAMCOUNTER StatGCRetLogFlush;
302 STAMCOUNTER StatGCRetPDMQueueFlush;
303 STAMCOUNTER StatGCRetPGMPoolGrow;
304 STAMCOUNTER StatGCRetRemReplay;
305 STAMCOUNTER StatGCRetVMSetError;
306 STAMCOUNTER StatGCRetVMSetRuntimeError;
307 STAMCOUNTER StatGCRetPGMLock;
308
309 /** @} */
310
311
312} VMM, *PVMM;
313
314
315/**
316 * The VMMGCEntry() codes.
317 */
318typedef enum VMMGCOPERATION
319{
320 /** Do GC module init. */
321 VMMGC_DO_VMMGC_INIT = 1,
322
323 /** The first Trap testcase. */
324 VMMGC_DO_TESTCASE_TRAP_FIRST = 0x0dead000,
325 /** Trap 0 testcases, uArg selects the variation. */
326 VMMGC_DO_TESTCASE_TRAP_0 = VMMGC_DO_TESTCASE_TRAP_FIRST,
327 /** Trap 1 testcases, uArg selects the variation. */
328 VMMGC_DO_TESTCASE_TRAP_1,
329 /** Trap 2 testcases, uArg selects the variation. */
330 VMMGC_DO_TESTCASE_TRAP_2,
331 /** Trap 3 testcases, uArg selects the variation. */
332 VMMGC_DO_TESTCASE_TRAP_3,
333 /** Trap 4 testcases, uArg selects the variation. */
334 VMMGC_DO_TESTCASE_TRAP_4,
335 /** Trap 5 testcases, uArg selects the variation. */
336 VMMGC_DO_TESTCASE_TRAP_5,
337 /** Trap 6 testcases, uArg selects the variation. */
338 VMMGC_DO_TESTCASE_TRAP_6,
339 /** Trap 7 testcases, uArg selects the variation. */
340 VMMGC_DO_TESTCASE_TRAP_7,
341 /** Trap 8 testcases, uArg selects the variation. */
342 VMMGC_DO_TESTCASE_TRAP_8,
343 /** Trap 9 testcases, uArg selects the variation. */
344 VMMGC_DO_TESTCASE_TRAP_9,
345 /** Trap 0a testcases, uArg selects the variation. */
346 VMMGC_DO_TESTCASE_TRAP_0A,
347 /** Trap 0b testcases, uArg selects the variation. */
348 VMMGC_DO_TESTCASE_TRAP_0B,
349 /** Trap 0c testcases, uArg selects the variation. */
350 VMMGC_DO_TESTCASE_TRAP_0C,
351 /** Trap 0d testcases, uArg selects the variation. */
352 VMMGC_DO_TESTCASE_TRAP_0D,
353 /** Trap 0e testcases, uArg selects the variation. */
354 VMMGC_DO_TESTCASE_TRAP_0E,
355 /** The last trap testcase (exclusive). */
356 VMMGC_DO_TESTCASE_TRAP_LAST,
357 /** Testcase for checking interrupt forwarding. */
358 VMMGC_DO_TESTCASE_HYPER_INTERRUPT,
359 /** Switching testing and profiling stub. */
360 VMMGC_DO_TESTCASE_NOP,
361 /** Testcase for checking interrupt masking.. */
362 VMMGC_DO_TESTCASE_INTERRUPT_MASKING,
363 /** Switching testing and profiling stub. */
364 VMMGC_DO_TESTCASE_HWACCM_NOP,
365
366 /** The usual 32-bit hack. */
367 VMMGC_DO_32_BIT_HACK = 0x7fffffff
368} VMMGCOPERATION;
369
370
371__BEGIN_DECLS
372
373
374#ifdef IN_RING0
375/**
376 * World switcher assembly routine.
377 * It will call VMMGCEntry().
378 *
379 * @returns return code from VMMGCEntry().
380 * @param pVM The VM in question.
381 * @param uArg See VMMGCEntry().
382 * @internal
383 */
384DECLASM(int) vmmR0WorldSwitch(PVM pVM, unsigned uArg);
385
386/**
387 * Callback function for vmmR0CallHostSetJmp.
388 *
389 * @returns VBox status code.
390 * @param pVM The VM handle.
391 */
392typedef DECLCALLBACK(int) FNVMMR0SETJMP(PVM pVM);
393/** Pointer to FNVMMR0SETJMP(). */
394typedef FNVMMR0SETJMP *PFNVMMR0SETJMP;
395
396/**
397 * The setjmp variant used for calling Ring-3.
398 *
399 * This differs from the normal setjmp in that it will resume VMMR0CallHost if we're
400 * in the middle of a ring-3 call. Another differences is the function pointer and
401 * argument. This has to do with resuming code and the stack frame of the caller.
402 *
403 * @returns VINF_SUCCESS on success or whatever is passed to vmmR0CallHostLongJmp.
404 * @param pJmpBuf The jmp_buf to set.
405 * @param pfn The function to be called when not resuming..
406 * @param pVM The argument of that function.
407 */
408DECLASM(int) vmmR0CallHostSetJmp(PVMMR0JMPBUF pJmpBuf, PFNVMMR0SETJMP pfn, PVM pVM);
409
410/**
411 * Worker for VMMR0CallHost.
412 * This will save the stack and registers.
413 *
414 * @returns rc.
415 * @param pJmpBuf Pointer to the jump buffer.
416 * @param rc The return code.
417 */
418DECLASM(int) vmmR0CallHostLongJmp(PVMMR0JMPBUF pJmpBuf, int rc);
419
420/**
421 * Internal R0 logger worker: Logger wrapper.
422 */
423VMMR0DECL(void) vmmR0LoggerWrapper(const char *pszFormat, ...);
424
425/**
426 * Internal R0 logger worker: Flush logger.
427 *
428 * @param pLogger The logger instance to flush.
429 * @remark This function must be exported!
430 */
431VMMR0DECL(void) vmmR0LoggerFlush(PRTLOGGER pLogger);
432
433#endif /* IN_RING0 */
434
435
436#ifdef IN_GC
437/**
438 * Internal GC logger worker: Logger wrapper.
439 */
440VMMGCDECL(void) vmmGCLoggerWrapper(const char *pszFormat, ...);
441
442/**
443 * Internal GC release logger worker: Logger wrapper.
444 */
445VMMGCDECL(void) vmmGCRelLoggerWrapper(const char *pszFormat, ...);
446
447/**
448 * Internal GC logger worker: Flush logger.
449 *
450 * @returns VINF_SUCCESS.
451 * @param pLogger The logger instance to flush.
452 * @remark This function must be exported!
453 */
454VMMGCDECL(int) vmmGCLoggerFlush(PRTLOGGERGC pLogger);
455
456/** @name Trap testcases and related labels.
457 * @{ */
458DECLASM(void) vmmGCEnableWP(void);
459DECLASM(void) vmmGCDisableWP(void);
460DECLASM(int) vmmGCTestTrap3(void);
461DECLASM(int) vmmGCTestTrap8(void);
462DECLASM(int) vmmGCTestTrap0d(void);
463DECLASM(int) vmmGCTestTrap0e(void);
464DECLASM(int) vmmGCTestTrap0e_FaultEIP(void); /**< a label */
465DECLASM(int) vmmGCTestTrap0e_ResumeEIP(void); /**< a label */
466/** @} */
467
468#endif /* IN_GC */
469
470__END_DECLS
471
472/** @} */
473
474#endif
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