PATMInternal.h@ 48935

Last change on this file since 48935 was 46347, checked in by vboxsync, 11 years ago
PATM: Align statistics to fix assertions on 32bit hosts
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1	/* $Id: PATMInternal.h 46347 2013-05-31 15:15:24Z vboxsync $ */
2	/** @file
3	* PATM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 Oracle Corporation
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
18	#ifndef ___PATMInternal_h
19	#define ___PATMInternal_h
20
21	#include <VBox/cdefs.h>
22	#include <VBox/types.h>
23	#include <VBox/vmm/patm.h>
24	#include <VBox/vmm/stam.h>
25	#include <VBox/dis.h>
26	#include <VBox/vmm/pgm.h>
27	#include <iprt/avl.h>
28	#include <iprt/param.h>
29	#include <VBox/log.h>
30
31
32	/** @name Saved state version numbers.
33	* @{ */
34	#define PATM_SSM_VERSION 55
35	#define PATM_SSM_VERSION_FIXUP_HACK 54
36	#define PATM_SSM_VERSION_FIXUP_HACK 54
37	#define PATM_SSM_VERSION_VER16 53
38	/** @} */
39
40	/* Enable for call patching. */
41	#define PATM_ENABLE_CALL
42	#define PATCH_MEMORY_SIZE (210241024)
43	#define MAX_PATCH_SIZE (1024*4)
44
45	/*
46	* Internal patch type flags (starts at RT_BIT(11))
47	*/
48
49	#define PATMFL_CHECK_SIZE RT_BIT_64(11)
50	#define PATMFL_FOUND_PATCHEND RT_BIT_64(12)
51	#define PATMFL_SINGLE_INSTRUCTION RT_BIT_64(13)
52	#define PATMFL_SYSENTER_XP RT_BIT_64(14)
53	#define PATMFL_JUMP_CONFLICT RT_BIT_64(15)
54	#define PATMFL_READ_ORIGINAL_BYTES RT_BIT_64(16) /** opcode might have already been patched */
55	#define PATMFL_INT3_REPLACEMENT RT_BIT_64(17)
56	#define PATMFL_SUPPORT_CALLS RT_BIT_64(18)
57	#define PATMFL_SUPPORT_INDIRECT_CALLS RT_BIT_64(19)
58	#define PATMFL_IDTHANDLER_WITHOUT_ENTRYPOINT RT_BIT_64(20) /** internal flag to avoid duplicate entrypoints */
59	#define PATMFL_INHIBIT_IRQS RT_BIT_64(21) /** temporary internal flag */
60	#define PATMFL_GENERATE_JUMPTOGUEST RT_BIT_64(22) /** temporary internal flag */
61	#define PATMFL_RECOMPILE_NEXT RT_BIT_64(23) /** for recompilation of the next instruction */
62	#define PATMFL_CODE_MONITORED RT_BIT_64(24) /** code pages of guest monitored for self-modifying code. */
63	#define PATMFL_CALLABLE_AS_FUNCTION RT_BIT_64(25) /** cli and pushf blocks can be used as callable functions. */
64	#define PATMFL_GLOBAL_FUNCTIONS RT_BIT_64(26) /** fake patch for global patm functions. */
65	#define PATMFL_TRAMPOLINE RT_BIT_64(27) /** trampoline patch that clears PATM_INTERRUPTFLAG and jumps to patch destination */
66	#define PATMFL_GENERATE_SETPIF RT_BIT_64(28) /** generate set PIF for the next instruction */
67	#define PATMFL_INSTR_HINT RT_BIT_64(29) /** Generate patch, but don't activate it. */
68	#define PATMFL_PATCHED_GUEST_CODE RT_BIT_64(30) /** Patched guest code. */
69	#define PATMFL_MUST_INSTALL_PATCHJMP RT_BIT_64(31) /** Need to patch guest code in order to activate patch. */
70	#define PATMFL_INT3_REPLACEMENT_BLOCK RT_BIT_64(32) /** int 3 replacement block */
71	#define PATMFL_EXTERNAL_JUMP_INSIDE RT_BIT_64(33) /** A trampoline patch was created that jumps to an instruction in the patch block */
72	#define PATMFL_CODE_REFERENCED RT_BIT_64(34) /** patch block referenced (called, jumped to) by another patch. */
73
74	#define SIZEOF_NEARJUMP8 2 //opcode byte + 1 byte relative offset
75	#define SIZEOF_NEARJUMP16 3 //opcode byte + 2 byte relative offset
76	#define SIZEOF_NEARJUMP32 5 //opcode byte + 4 byte relative offset
77	#define SIZEOF_NEAR_COND_JUMP32 6 //0xF + opcode byte + 4 byte relative offset
78
79	#define MAX_INSTR_SIZE 16
80
81	/* Patch states */
82	#define PATCH_REFUSED 1
83	#define PATCH_DISABLED 2
84	#define PATCH_ENABLED 4
85	#define PATCH_UNUSABLE 8
86	#define PATCH_DIRTY 16
87	#define PATCH_DISABLE_PENDING 32
88
89
90	#define MAX_PATCH_TRAPS 4
91	#define PATM_MAX_CALL_DEPTH 32
92	/* Maximum nr of writes before a patch is marked dirty. (disabled) */
93	#define PATM_MAX_CODE_WRITES 32
94	/* Maximum nr of invalid writes before a patch is disabled. */
95	#define PATM_MAX_INVALID_WRITES 16384
96
97	#define FIXUP_ABSOLUTE 0
98	#define FIXUP_REL_JMPTOPATCH 1
99	#define FIXUP_REL_JMPTOGUEST 2
100
101	#define PATM_ILLEGAL_DESTINATION 0xDEADBEEF
102
103	/** Size of the instruction that's used for requests from patch code (currently only call) */
104	#define PATM_ILLEGAL_INSTR_SIZE 2
105
106
107	/** No statistics counter index allocated just yet */
108	#define PATM_STAT_INDEX_NONE (uint32_t)-1
109	/** Dummy counter to handle overflows */
110	#define PATM_STAT_INDEX_DUMMY 0
111	#define PATM_STAT_INDEX_IS_VALID(a) (a != PATM_STAT_INDEX_DUMMY && a != PATM_STAT_INDEX_NONE)
112
113	#ifdef VBOX_WITH_STATISTICS
114	#define PATM_STAT_RUN_INC(pPatch) \
115	if (PATM_STAT_INDEX_IS_VALID((pPatch)->uPatchIdx)) \
116	CTXSUFF(pVM->patm.s.pStats)[(pPatch)->uPatchIdx].u32A++;
117	#define PATM_STAT_FAULT_INC(pPatch) \
118	if (PATM_STAT_INDEX_IS_VALID((pPatch)->uPatchIdx)) \
119	CTXSUFF(pVM->patm.s.pStats)[(pPatch)->uPatchIdx].u32B++;
120	#else
121	#define PATM_STAT_RUN_INC(pPatch) do { } while (0)
122	#define PATM_STAT_FAULT_INC(pPatch) do { } while (0)
123	#endif
124
125	/** Maximum number of stat counters. */
126	#define PATM_STAT_MAX_COUNTERS 1024
127	/** Size of memory allocated for patch statistics. */
128	#define PATM_STAT_MEMSIZE (PATM_STAT_MAX_COUNTERS*sizeof(STAMRATIOU32))
129
130	/** aCpus[0].fLocalForcedActions fixup (must be uneven to avoid theoretical clashes with valid pointers) */
131	#define PATM_FIXUP_CPU_FF_ACTION 0xffffff01
132	/** default cpuid pointer fixup */
133	#define PATM_FIXUP_CPUID_DEFAULT 0xffffff03
134	/** standard cpuid pointer fixup */
135	#define PATM_FIXUP_CPUID_STANDARD 0xffffff05
136	/** extended cpuid pointer fixup */
137	#define PATM_FIXUP_CPUID_EXTENDED 0xffffff07
138	/** centaur cpuid pointer fixup */
139	#define PATM_FIXUP_CPUID_CENTAUR 0xffffff09
140
141	typedef struct
142	{
143	/** The key is a HC virtual address. */
144	AVLPVNODECORE Core;
145
146	uint32_t uType;
147	R3PTRTYPE(uint8_t *) pRelocPos;
148	RTRCPTR pSource;
149	RTRCPTR pDest;
150	} RELOCREC, *PRELOCREC;
151
152	/* forward decl */
153	struct _PATCHINFO;
154
155	/* Cache record for guest to host pointer conversions. */
156	typedef struct
157	{
158	R3PTRTYPE(uint8_t *) pPageLocStartHC;
159	RCPTRTYPE(uint8_t *) pGuestLoc;
160	R3PTRTYPE(void *) pPatch;
161	PGMPAGEMAPLOCK Lock;
162	} PATMP2GLOOKUPREC, *PPATMP2GLOOKUPREC;
163
164	/* Obsolete; do not use. */
165	typedef struct
166	{
167	R3PTRTYPE(uint8_t *) pPatchLocStartHC;
168	R3PTRTYPE(uint8_t *) pPatchLocEndHC;
169	RCPTRTYPE(uint8_t *) pGuestLoc;
170	uint32_t opsize;
171	} PATMP2GLOOKUPREC_OBSOLETE;
172
173	typedef struct
174	{
175	/** The key is a pointer to a JUMPREC structure. */
176	AVLPVNODECORE Core;
177
178	R3PTRTYPE(uint8_t *) pJumpHC;
179	RCPTRTYPE(uint8_t *) pTargetGC;
180	uint32_t offDispl;
181	uint32_t opcode;
182	} JUMPREC, *PJUMPREC;
183
184	/**
185	* Patch to guest lookup type (single or both direction)
186	*/
187	typedef enum
188	{
189	/** patch to guest */
190	PATM_LOOKUP_PATCH2GUEST,
191	/** guest to patch + patch to guest */
192	PATM_LOOKUP_BOTHDIR
193	} PATM_LOOKUP_TYPE;
194
195	/**
196	* Patch to guest address lookup record.
197	*/
198	typedef struct RECPATCHTOGUEST
199	{
200	/** The key is an offset inside the patch memory block. */
201	AVLU32NODECORE Core;
202	/** GC address of the guest instruction this record is for. */
203	RTRCPTR pOrgInstrGC;
204	/** Patch to guest lookup type. */
205	PATM_LOOKUP_TYPE enmType;
206	/** Flag whether the original instruction was changed by the guest. */
207	bool fDirty;
208	/** Flag whether this guest instruction is a jump target from
209	* a trampoline patch. */
210	bool fJumpTarget;
211	/** Original opcode before writing 0xCC there to mark it dirty. */
212	uint8_t u8DirtyOpcode;
213	} RECPATCHTOGUEST, *PRECPATCHTOGUEST;
214
215	/**
216	* Guest to patch address lookup record
217	*/
218	typedef struct RECGUESTTOPATCH
219	{
220	/** The key is a GC virtual address. */
221	AVLU32NODECORE Core;
222	/** Patch offset (relative to PATM::pPatchMemGC / PATM::pPatchMemHC). */
223	uint32_t PatchOffset;
224	} RECGUESTTOPATCH, *PRECGUESTTOPATCH;
225
226	/**
227	* Temporary information used in ring 3 only; no need to waste memory in the patch record itself.
228	*/
229	typedef struct
230	{
231	/* Temporary tree for storing the addresses of illegal instructions. */
232	R3PTRTYPE(PAVLPVNODECORE) IllegalInstrTree;
233	uint32_t nrIllegalInstr;
234
235	int32_t nrJumps;
236	uint32_t nrRetInstr;
237
238	/* Temporary tree of encountered jumps. (debug only) */
239	R3PTRTYPE(PAVLPVNODECORE) DisasmJumpTree;
240
241	int32_t nrCalls;
242
243	/** Last original guest instruction pointer; used for disassembly log. */
244	RTRCPTR pLastDisasmInstrGC;
245
246	/** Keeping track of multiple ret instructions. */
247	RTRCPTR pPatchRetInstrGC;
248	uint32_t uPatchRetParam1;
249	} PATCHINFOTEMP, *PPATCHINFOTEMP;
250
251	/** Forward declaration for a pointer to a trampoline patch record. */
252	typedef struct TRAMPREC *PTRAMPREC;
253
254	/**
255	* Patch information.
256	*/
257	typedef struct _PATCHINFO
258	{
259	/** Current patch state (enabled, disabled, etc.). */
260	uint32_t uState;
261	/** Previous patch state. Used when enabling a disabled patch. */
262	uint32_t uOldState;
263	/** CPU mode (16bit or 32bit). */
264	DISCPUMODE uOpMode;
265	/** GC pointer of privileged instruction */
266	RCPTRTYPE(uint8_t *) pPrivInstrGC;
267	/** @todo: Can't remove due to structure size dependencies in saved states. */
268	R3PTRTYPE(uint8_t *) unusedHC;
269	/** Original privileged guest instructions overwritten by the jump patch. */
270	uint8_t aPrivInstr[MAX_INSTR_SIZE];
271	/** Number of valid bytes in the instruction buffer. */
272	uint32_t cbPrivInstr;
273	/** Opcode for priv instr (OP_). /
274	uint32_t opcode;
275	/** Size of the patch jump in the guest code. */
276	uint32_t cbPatchJump;
277	/** Only valid for PATMFL_JUMP_CONFLICT patches */
278	RTRCPTR pPatchJumpDestGC;
279	/** Offset of the patch code from the beginning of the patch memory area. */
280	RTGCUINTPTR32 pPatchBlockOffset;
281	/** Size of the patch code in bytes. */
282	uint32_t cbPatchBlockSize;
283	/** Current offset of the patch starting from pPatchBlockOffset.
284	* Used during patch creation. */
285	uint32_t uCurPatchOffset;
286	#if HC_ARCH_BITS == 64
287	uint32_t Alignment0; /*< Align flags correctly. /
288	#endif
289	/** PATM flags (see PATMFL_). /
290	uint64_t flags;
291	/**
292	* Lowest and highest patched GC instruction address. To optimize searches.
293	*/
294	RTRCPTR pInstrGCLowest;
295	RTRCPTR pInstrGCHighest;
296	/* Tree of fixup records for the patch. */
297	R3PTRTYPE(PAVLPVNODECORE) FixupTree;
298	uint32_t nrFixups;
299	/* Tree of jumps inside the generated patch code. */
300	uint32_t nrJumpRecs;
301	R3PTRTYPE(PAVLPVNODECORE) JumpTree;
302	/**
303	* Lookup trees for determining the corresponding guest address of an
304	* instruction in the patch block.
305	*/
306	R3PTRTYPE(PAVLU32NODECORE) Patch2GuestAddrTree;
307	R3PTRTYPE(PAVLU32NODECORE) Guest2PatchAddrTree;
308	uint32_t nrPatch2GuestRecs;
309	#if HC_ARCH_BITS == 64
310	uint32_t Alignment1;
311	#endif
312	/** Unused, but can't remove due to structure size dependencies in the saved state. */
313	PATMP2GLOOKUPREC_OBSOLETE unused;
314	/** Temporary information during patch creation. Don't waste hypervisor memory for this. */
315	R3PTRTYPE(PPATCHINFOTEMP) pTempInfo;
316	/** List of trampoline patches referencing this patch.
317	* Used when refreshing the patch. (Only for function duplicates) */
318	R3PTRTYPE(PTRAMPREC) pTrampolinePatchesHead;
319	/** Count the number of writes to the corresponding guest code. */
320	uint32_t cCodeWrites;
321	/** Some statistics to determine if we should keep this patch activated. */
322	uint32_t cTraps;
323	/** Count the number of invalid writes to pages monitored for the patch. */
324	uint32_t cInvalidWrites;
325	/** Index into the uPatchRun and uPatchTrap arrays (0..MAX_PATCHES-1) */
326	uint32_t uPatchIdx;
327	/** First opcode byte, that's overwritten when a patch is marked dirty. */
328	uint8_t bDirtyOpcode;
329	/** Align the structure size on a 8-byte boundary. */
330	uint8_t Alignment2[HC_ARCH_BITS == 64 ? 7 : 3];
331	} PATCHINFO, *PPATCHINFO;
332
333	#define PATCHCODE_PTR_GC(pPatch) (RTRCPTR) (pVM->patm.s.pPatchMemGC + (pPatch)->pPatchBlockOffset)
334	#define PATCHCODE_PTR_HC(pPatch) (uint8_t *)(pVM->patm.s.pPatchMemHC + (pPatch)->pPatchBlockOffset)
335
336	/**
337	* Lookup record for patches
338	*/
339	typedef struct PATMPATCHREC
340	{
341	/** The key is a GC virtual address. */
342	AVLOU32NODECORE Core;
343	/** The key is a patch offset. */
344	AVLOU32NODECORE CoreOffset;
345	/** The patch information. */
346	PATCHINFO patch;
347	} PATMPATCHREC, *PPATMPATCHREC;
348
349	/**
350	* Record for a trampoline patch.
351	*/
352	typedef struct TRAMPREC
353	{
354	/** Pointer to the next trampoline patch. */
355	struct TRAMPREC *pNext;
356	/** Pointer to the trampoline patch record. */
357	PPATMPATCHREC pPatchTrampoline;
358	} TRAMPREC;
359
360	/** Increment for allocating room for pointer array */
361	#define PATMPATCHPAGE_PREALLOC_INCREMENT 16
362
363	/**
364	* Lookup record for patch pages
365	*/
366	typedef struct PATMPATCHPAGE
367	{
368	/** The key is a GC virtual address. */
369	AVLOU32NODECORE Core;
370	/** Region to monitor. */
371	RTRCPTR pLowestAddrGC;
372	RTRCPTR pHighestAddrGC;
373	/** Number of patches for this page. */
374	uint32_t cCount;
375	/** Maximum nr of pointers in the array. */
376	uint32_t cMaxPatches;
377	/** Array of patch pointers for this page. */
378	R3PTRTYPE(PPATCHINFO *) papPatch;
379	} PATMPATCHPAGE, *PPATMPATCHPAGE;
380
381	#define PATM_PATCHREC_FROM_COREOFFSET(a) (PPATMPATCHREC)((uintptr_t)a - RT_OFFSETOF(PATMPATCHREC, CoreOffset))
382	#define PATM_PATCHREC_FROM_PATCHINFO(a) (PPATMPATCHREC)((uintptr_t)a - RT_OFFSETOF(PATMPATCHREC, patch))
383
384	/**
385	* AVL trees used by PATM.
386	*/
387	typedef struct PATMTREES
388	{
389	/**
390	* AVL tree with all patches (active or disabled) sorted by guest instruction address
391	*/
392	AVLOU32TREE PatchTree;
393
394	/**
395	* AVL tree with all patches sorted by patch address (offset actually)
396	*/
397	AVLOU32TREE PatchTreeByPatchAddr;
398
399	/**
400	* AVL tree with all pages which were (partly) patched
401	*/
402	AVLOU32TREE PatchTreeByPage;
403
404	uint32_t align[1];
405	} PATMTREES, *PPATMTREES;
406
407	/**
408	* PATM VM Instance data.
409	* Changes to this must checked against the padding of the patm union in VM!
410	*/
411	typedef struct PATM
412	{
413	/** Offset to the VM structure.
414	* See PATM2VM(). */
415	RTINT offVM;
416	/** Pointer to the patch memory area (GC) */
417	RCPTRTYPE(uint8_t *) pPatchMemGC;
418	/** Pointer to the patch memory area (HC) */
419	R3PTRTYPE(uint8_t *) pPatchMemHC;
420	/** Size of the patch memory area in bytes. */
421	uint32_t cbPatchMem;
422	/** Relative offset to the next free byte starting from the start of the region. */
423	uint32_t offPatchMem;
424	/** Flag whether PATM ran out of patch memory. */
425	bool fOutOfMemory;
426	/** Delta to the new relocated HMA area.
427	* Used only during PATMR3Relocate(). */
428	int32_t deltaReloc;
429	/** GC PATM state pointer - HC pointer. */
430	R3PTRTYPE(PPATMGCSTATE) pGCStateHC;
431	/** GC PATM state pointer - RC pointer. */
432	RCPTRTYPE(PPATMGCSTATE) pGCStateGC;
433	/** PATM stack page for call instruction execution.
434	* 2 parts: one for our private stack and one to store the original return
435	* address. */
436	RCPTRTYPE(RTRCPTR *) pGCStackGC;
437	/** HC pointer of the PATM stack page. */
438	R3PTRTYPE(RTRCPTR *) pGCStackHC;
439	/** GC pointer to CPUMCTX structure. */
440	RCPTRTYPE(PCPUMCTX) pCPUMCtxGC;
441	/** GC statistics pointer. */
442	RCPTRTYPE(PSTAMRATIOU32) pStatsGC;
443	/** HC statistics pointer. */
444	R3PTRTYPE(PSTAMRATIOU32) pStatsHC;
445	/* Current free index value (uPatchRun/uPatchTrap arrays). */
446	uint32_t uCurrentPatchIdx;
447	/* Temporary counter for patch installation call depth. (in order not to go on forever) */
448	uint32_t ulCallDepth;
449	/** Number of page lookup records. */
450	uint32_t cPageRecords;
451	/** Lowest and highest patched GC instruction addresses. To optimize searches. */
452	RTRCPTR pPatchedInstrGCLowest;
453	RTRCPTR pPatchedInstrGCHighest;
454	/** Pointer to the patch tree for instructions replaced by 'int 3'. */
455	RCPTRTYPE(PPATMTREES) PatchLookupTreeGC;
456	R3PTRTYPE(PPATMTREES) PatchLookupTreeHC;
457	/** Global PATM lookup and call function (used by call patches). */
458	RTRCPTR pfnHelperCallGC;
459	/** Global PATM return function (used by ret patches). */
460	RTRCPTR pfnHelperRetGC;
461	/** Global PATM jump function (used by indirect jmp patches). */
462	RTRCPTR pfnHelperJumpGC;
463	/** Global PATM return function (used by iret patches). */
464	RTRCPTR pfnHelperIretGC;
465	/** Fake patch record for global functions. */
466	R3PTRTYPE(PPATMPATCHREC) pGlobalPatchRec;
467	/** Pointer to original sysenter handler */
468	RTRCPTR pfnSysEnterGC;
469	/** Pointer to sysenter handler trampoline */
470	RTRCPTR pfnSysEnterPatchGC;
471	/** Sysenter patch index (for stats only) */
472	uint32_t uSysEnterPatchIdx;
473	/** GC address of fault in monitored page (set by PATMGCMonitorPage, used by PATMR3HandleMonitoredPage)- */
474	RTRCPTR pvFaultMonitor;
475	/** Temporary information for pending MMIO patch. Set in GC or R0 context. */
476	struct
477	{
478	RTGCPHYS GCPhys;
479	RTRCPTR pCachedData;
480	RTRCPTR Alignment0; /*< Align the structure size on a 8-byte boundary. /
481	} mmio;
482	/** Temporary storage during load/save state */
483	struct
484	{
485	R3PTRTYPE(PSSMHANDLE) pSSM;
486	uint32_t cPatches;
487	#if HC_ARCH_BITS == 64
488	uint32_t Alignment0; /*< Align the structure size on a 8-byte boundary. /
489	#endif
490	} savedstate;
491
492	/** Debug module for the patch memory. */
493	RTDBGMOD hDbgModPatchMem;
494
495	#if HC_ARCH_BITS == 32
496	/** Align statistics on a 8 byte boundary. */
497	uint32_t u32Alignment1;
498	#endif
499
500	STAMCOUNTER StatNrOpcodeRead;
501	STAMCOUNTER StatDisabled;
502	STAMCOUNTER StatUnusable;
503	STAMCOUNTER StatEnabled;
504	STAMCOUNTER StatInstalled;
505	STAMCOUNTER StatInstalledFunctionPatches;
506	STAMCOUNTER StatInstalledTrampoline;
507	STAMCOUNTER StatInstalledJump;
508	STAMCOUNTER StatInt3Callable;
509	STAMCOUNTER StatInt3BlockRun;
510	STAMCOUNTER StatOverwritten;
511	STAMCOUNTER StatFixedConflicts;
512	STAMCOUNTER StatFlushed;
513	STAMCOUNTER StatPageBoundaryCrossed;
514	STAMCOUNTER StatMonitored;
515	STAMPROFILEADV StatHandleTrap;
516	STAMCOUNTER StatSwitchBack;
517	STAMCOUNTER StatSwitchBackFail;
518	STAMCOUNTER StatPATMMemoryUsed;
519	STAMCOUNTER StatDuplicateREQSuccess;
520	STAMCOUNTER StatDuplicateREQFailed;
521	STAMCOUNTER StatDuplicateUseExisting;
522	STAMCOUNTER StatFunctionFound;
523	STAMCOUNTER StatFunctionNotFound;
524	STAMPROFILEADV StatPatchWrite;
525	STAMPROFILEADV StatPatchWriteDetect;
526	STAMCOUNTER StatDirty;
527	STAMCOUNTER StatPushTrap;
528	STAMCOUNTER StatPatchWriteInterpreted;
529	STAMCOUNTER StatPatchWriteInterpretedFailed;
530
531	STAMCOUNTER StatSysEnter;
532	STAMCOUNTER StatSysExit;
533	STAMCOUNTER StatEmulIret;
534	STAMCOUNTER StatEmulIretFailed;
535
536	STAMCOUNTER StatInstrDirty;
537	STAMCOUNTER StatInstrDirtyGood;
538	STAMCOUNTER StatInstrDirtyBad;
539
540	STAMCOUNTER StatPatchPageInserted;
541	STAMCOUNTER StatPatchPageRemoved;
542
543	STAMCOUNTER StatPatchRefreshSuccess;
544	STAMCOUNTER StatPatchRefreshFailed;
545
546	STAMCOUNTER StatGenRet;
547	STAMCOUNTER StatGenRetReused;
548	STAMCOUNTER StatGenJump;
549	STAMCOUNTER StatGenCall;
550	STAMCOUNTER StatGenPopf;
551
552	STAMCOUNTER StatCheckPendingIRQ;
553
554	STAMCOUNTER StatFunctionLookupReplace;
555	STAMCOUNTER StatFunctionLookupInsert;
556	uint32_t StatU32FunctionMaxSlotsUsed;
557	uint32_t Alignment0; /*< Align the structure size on a 8-byte boundary. /
558	} PATM, *PPATM;
559
560
561
562	DECLCALLBACK(int) patmVirtPageHandler(PVM pVM, RTGCPTR GCPtr, void pvPtr, void pvBuf, size_t cbBuf, PGMACCESSTYPE enmAccessType, void *pvUser);
563
564	DECLCALLBACK(int) patmR3Save(PVM pVM, PSSMHANDLE pSSM);
565	DECLCALLBACK(int) patmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
566	DECLCALLBACK(int) patmR3LoadDummy(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
567
568	#ifdef IN_RING3
569	RTRCPTR patmPatchGCPtr2GuestGCPtr(PVM pVM, PPATCHINFO pPatch, RCPTRTYPE(uint8_t *) pPatchGC);
570	RTRCPTR patmGuestGCPtrToPatchGCPtr(PVM pVM, PPATCHINFO pPatch, RCPTRTYPE(uint8_t*) pInstrGC);
571	RTRCPTR patmGuestGCPtrToClosestPatchGCPtr(PVM pVM, PPATCHINFO pPatch, RCPTRTYPE(uint8_t*) pInstrGC);
572	#endif
573
574	void patmR3AddP2GLookupRecord(PVM pVM, PPATCHINFO pPatch, uint8_t *pPatchInstrHC, RTRCPTR pInstrGC,
575	PATM_LOOKUP_TYPE enmType, bool fDirty = false);
576	int patmInsertPatchPages(PVM pVM, PPATCHINFO pPatch);
577	RTRCPTR patmPatchQueryStatAddress(PVM pVM, PPATCHINFO pPatch);
578	int patmR3RemovePatch(PVM pVM, PPATMPATCHREC pPatchRec, bool fForceRemove);
579
580	/**
581	* Call for analysing the instructions following the privileged instr. for compliance with our heuristics
582	*
583	* @returns VBox status code.
584	* @param pVM Pointer to the VM.
585	* @param pCpu CPU disassembly state
586	* @param pInstrHC Guest context pointer to privileged instruction
587	* @param pCurInstrHC Guest context pointer to current instruction
588	* @param pCacheRec Cache record ptr
589	*
590	*/
591	typedef int (VBOXCALL PFN_PATMR3ANALYSE)(PVM pVM, DISCPUSTATE pCpu, RCPTRTYPE(uint8_t ) pInstrGC, RCPTRTYPE(uint8_t ) pCurInstrGC, PPATMP2GLOOKUPREC pCacheRec);
592
593	int patmR3InstallGuestSpecificPatch(PVM pVM, PDISCPUSTATE pCpu, RTRCPTR pInstrGC, uint8_t *pInstrHC, PPATMPATCHREC pPatchRec);
594	PPATMPATCHREC patmQueryFunctionPatch(PVM pVM, RTRCPTR pInstrGC);
595	const char *patmGetInstructionString(uint32_t opcode, uint32_t fPatchFlags);
596
597	PPATCHINFO patmFindActivePatchByEntrypoint(PVM pVM, RTRCPTR pInstrGC, bool fIncludeHints = false);
598	int patmR3PatchInstrInt3(PVM pVM, RTRCPTR pInstrGC, R3PTRTYPE(uint8_t ) pInstrHC, DISCPUSTATE pCpu, PPATCHINFO pPatch);
599	int patmAddBranchToLookupCache(PVM pVM, RTRCPTR pJumpTableGC, RTRCPTR pBranchTarget, RTRCUINTPTR pRelBranchPatch);
600	R3PTRTYPE(uint8_t ) patmR3GCVirtToHCVirt(PVM pVM, PPATMP2GLOOKUPREC pCacheRec, RCPTRTYPE(uint8_t ) pGCPtr);
601
602	RT_C_DECLS_BEGIN
603	/**
604	* #PF Virtual Handler callback for Guest access a page monitored by PATM
605	*
606	* @returns VBox status code (appropriate for trap handling and GC return).
607	* @param pVM Pointer to the VM.
608	* @param uErrorCode CPU Error code.
609	* @param pRegFrame Trap register frame.
610	* @param pvFault The fault address (cr2).
611	* @param pvRange The base address of the handled virtual range.
612	* @param offRange The offset of the access into this range.
613	* (If it's a EIP range this is the EIP, if not it's pvFault.)
614	*/
615	VMMRCDECL(int) PATMGCMonitorPage(PVM pVM, RTGCUINT uErrorCode, PCPUMCTXCORE pRegFrame, RTGCPTR pvFault, RTGCPTR pvRange, uintptr_t offRange);
616
617	RT_C_DECLS_END
618
619	/**
620	* Calculate the branch destination
621	*
622	* @returns branch destination or 0 if failed
623	* @param pCpu Disassembly state of instruction.
624	* @param pBranchInstrGC GC pointer of branch instruction
625	*/
626	DECLINLINE(RTRCPTR) PATMResolveBranch(PDISCPUSTATE pCpu, RTRCPTR pBranchInstrGC)
627	{
628	uint32_t disp;
629	if (pCpu->Param1.fUse & DISUSE_IMMEDIATE8_REL)
630	{
631	disp = (int32_t)(char)pCpu->Param1.uValue;
632	}
633	else
634	if (pCpu->Param1.fUse & DISUSE_IMMEDIATE16_REL)
635	{
636	disp = (int32_t)(uint16_t)pCpu->Param1.uValue;
637	}
638	else
639	if (pCpu->Param1.fUse & DISUSE_IMMEDIATE32_REL)
640	{
641	disp = (int32_t)pCpu->Param1.uValue;
642	}
643	else
644	{
645	Log(("We don't support far jumps here!! (%08X)\n", pCpu->Param1.fUse));
646	return 0;
647	}
648	#ifdef IN_RC
649	return (RTRCPTR)((uint8_t *)pBranchInstrGC + pCpu->cbInstr + disp);
650	#else
651	return pBranchInstrGC + pCpu->cbInstr + disp;
652	#endif
653	}
654
655	#ifdef LOG_ENABLED
656	int patmr3DisasmCallback(PVM pVM, DISCPUSTATE pCpu, RCPTRTYPE(uint8_t ) pInstrGC, RCPTRTYPE(uint8_t *) pCurInstrGC, PPATMP2GLOOKUPREC pCacheRec);
657	int patmr3DisasmCodeStream(PVM pVM, RCPTRTYPE(uint8_t ) pInstrGC, RCPTRTYPE(uint8_t ) pCurInstrGC, PFN_PATMR3ANALYSE pfnPATMR3Analyse, PPATMP2GLOOKUPREC pCacheRec);
658	#endif
659
660
661	void patmR3DbgInit(PVM pVM);
662	void patmR3DbgTerm(PVM pVM);
663	void patmR3DbgReset(PVM pVM);
664	void patmR3DbgAddPatch(PVM pVM, PPATMPATCHREC pPatchRec);
665
666	#endif

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source: vbox/trunk/src/VBox/VMM/include/PATMInternal.h@ 48935

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