SUPDrvInternal.h@ 85416

Last change on this file since 85416 was 85174, checked in by vboxsync, 4 years ago
SUPDrv: flower box upgrade
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1	/* $Id: SUPDrvInternal.h 85174 2020-07-10 12:37:39Z vboxsync $ */
2	/** @file
3	* VirtualBox Support Driver - Internal header.
4	*/
5
6	/*
7	* Copyright (C) 2006-2020 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	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27	#ifndef VBOX_INCLUDED_SRC_Support_SUPDrvInternal_h
28	#define VBOX_INCLUDED_SRC_Support_SUPDrvInternal_h
29	#ifndef RT_WITHOUT_PRAGMA_ONCE
30	# pragma once
31	#endif
32
33
34	/*********************************************************************************************************************************
35	* Header Files *
36	*********************************************************************************************************************************/
37	#include <VBox/cdefs.h>
38	#include <VBox/types.h>
39	#include <VBox/sup.h>
40
41	#include <iprt/assert.h>
42	#include <iprt/list.h>
43	#include <iprt/memobj.h>
44	#include <iprt/time.h>
45	#include <iprt/timer.h>
46	#include <iprt/string.h>
47	#include <iprt/err.h>
48
49	#ifdef SUPDRV_AGNOSTIC
50	/* do nothing */
51
52	#elif defined(RT_OS_WINDOWS)
53	# include <iprt/nt/nt.h>
54	# include <memory.h>
55
56	#elif defined(RT_OS_LINUX)
57	# include <linux/version.h>
58	# if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 33)
59	# include <generated/autoconf.h>
60	# else
61	# ifndef AUTOCONF_INCLUDED
62	# include <linux/autoconf.h>
63	# endif
64	# endif
65	# if defined(CONFIG_MODVERSIONS) && !defined(MODVERSIONS)
66	# define MODVERSIONS
67	# if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 71)
68	# include <linux/modversions.h>
69	# endif
70	# endif
71	# ifndef KBUILD_STR
72	# if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 16)
73	# define KBUILD_STR(s) s
74	# else
75	# define KBUILD_STR(s) #s
76	# endif
77	# endif
78	# include <linux/string.h>
79	# include <linux/spinlock.h>
80	# include <linux/slab.h>
81	# if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)
82	# include <linux/semaphore.h>
83	# else /* older kernels */
84	# include <asm/semaphore.h>
85	# endif /* older kernels */
86	# include <linux/timer.h>
87
88	#elif defined(RT_OS_DARWIN)
89	# include <libkern/libkern.h>
90	# include <iprt/string.h>
91
92	#elif defined(RT_OS_OS2)
93
94	#elif defined(RT_OS_FREEBSD)
95	# define memset libkern_memset /** @todo these are just hacks to get it compiling, check out later. */
96	# define memcmp libkern_memcmp
97	# define strchr libkern_strchr
98	# define strrchr libkern_strrchr
99	# define ffsl libkern_ffsl
100	# define fls libkern_fls
101	# define flsl libkern_flsl
102	# include <sys/libkern.h>
103	# undef memset
104	# undef memcmp
105	# undef strchr
106	# undef strrchr
107	# undef ffs
108	# undef ffsl
109	# undef fls
110	# undef flsl
111	# include <iprt/string.h>
112
113	#elif defined(RT_OS_SOLARIS)
114	# include <sys/cmn_err.h>
115	# include <iprt/string.h>
116
117	#else
118	# error "unsupported OS."
119	#endif
120
121	#include "SUPDrvIOC.h"
122	#include "SUPDrvIDC.h"
123
124
125
126	/*********************************************************************************************************************************
127	* Defined Constants And Macros *
128	*********************************************************************************************************************************/
129	/*
130	* Hardcoded cookies.
131	*/
132	#define BIRD 0x64726962 /* 'bird' */
133	#define BIRD_INV 0x62697264 /* 'drib' */
134
135
136	#ifdef RT_OS_WINDOWS
137	/** Use a normal mutex for the loader so we remain at the same IRQL after
138	* taking it.
139	* @todo fix the mutex implementation on linux and make this the default. */
140	# define SUPDRV_USE_MUTEX_FOR_LDR
141
142	/** Use a normal mutex for the GIP so we remain at the same IRQL after
143	* taking it.
144	* @todo fix the mutex implementation on linux and make this the default. */
145	# define SUPDRV_USE_MUTEX_FOR_GIP
146	#endif
147
148
149	/**
150	* OS debug print macro.
151	*/
152	#define OSDBGPRINT(a) SUPR0Printf a
153
154	/** Debug printf macro shared with the ring-3 part. */
155	#ifdef DEBUG_bird
156	# define SUP_DPRINTF(a) SUPR0Printf a
157	#else
158	# define SUP_DPRINTF(a) do { } while (0)
159	#endif
160
161
162	/** @name Context values for the per-session handle tables.
163	* The context value is used to distinguish between the different kinds of
164	* handles, making the handle table API do all the work.
165	* @{ */
166	/** Handle context value for single release event handles. */
167	#define SUPDRV_HANDLE_CTX_EVENT ((void *)(uintptr_t)(SUPDRVOBJTYPE_SEM_EVENT))
168	/** Handle context value for multiple release event handles. */
169	#define SUPDRV_HANDLE_CTX_EVENT_MULTI ((void *)(uintptr_t)(SUPDRVOBJTYPE_SEM_EVENT_MULTI))
170	/** @} */
171
172
173	/**
174	* Validates a session pointer.
175	*
176	* @returns true/false accordingly.
177	* @param pSession The session.
178	*/
179	#define SUP_IS_SESSION_VALID(pSession) \
180	( VALID_PTR(pSession) \
181	&& pSession->u32Cookie == BIRD_INV)
182
183	/**
184	* Validates a device extension pointer.
185	*
186	* @returns true/false accordingly.
187	* @param pDevExt The device extension.
188	*/
189	#define SUP_IS_DEVEXT_VALID(pDevExt) \
190	( VALID_PTR(pDevExt)\
191	&& pDevExt->u32Cookie == BIRD)
192
193
194	/** @def SUPDRV_WITH_MSR_PROBER
195	* Enables the SUP_IOCTL_MSR_PROBER function.
196	* By default, only enabled in DEBUG builds as it's a sensitive feature.
197	*/
198	#if defined(DEBUG) && !defined(SUPDRV_WITH_MSR_PROBER) && !defined(SUPDRV_WITHOUT_MSR_PROBER)
199	# define SUPDRV_WITH_MSR_PROBER
200	#endif
201
202	/** @def SUPDRV_WITHOUT_MSR_PROBER
203	* Executive overide for disabling the SUP_IOCTL_MSR_PROBER function.
204	*/
205	#ifdef SUPDRV_WITHOUT_MSR_PROBER
206	# undef SUPDRV_WITH_MSR_PROBER
207	#endif
208
209	#ifdef DOXYGEN_RUNNING
210	# define SUPDRV_WITH_MSR_PROBER
211	# define SUPDRV_WITHOUT_MSR_PROBER
212	#endif
213
214	#if 1
215	/** @def SUPDRV_USE_TSC_DELTA_THREAD
216	* Use a dedicated kernel thread to service TSC-delta measurement requests.
217	* @todo Test on servers with many CPUs and sockets. */
218	# define SUPDRV_USE_TSC_DELTA_THREAD
219	#endif
220
221
222	/*********************************************************************************************************************************
223	* Structures and Typedefs *
224	*********************************************************************************************************************************/
225	/** Pointer to the device extension. */
226	typedef struct SUPDRVDEVEXT *PSUPDRVDEVEXT;
227
228	#ifdef SUPDRV_USE_TSC_DELTA_THREAD
229	/**
230	* TSC-delta measurement thread state machine.
231	*/
232	typedef enum SUPDRVTSCDELTATHREADSTATE
233	{
234	/** Uninitialized/invalid value. */
235	kTscDeltaThreadState_Invalid = 0,
236	/** The thread is being created.
237	* Next state: Listening, Butchered, Terminating */
238	kTscDeltaThreadState_Creating,
239	/** The thread is listening for events.
240	* Previous state: Creating, Measuring
241	* Next state: WaitAndMeasure, Butchered, Terminated */
242	kTscDeltaThreadState_Listening,
243	/** The thread is sleeping before starting a measurement.
244	* Previous state: Listening, Measuring
245	* Next state: Measuring, Butchered, Terminating
246	* @remarks The thread won't enter this state on its own, it is put into this
247	* state by the GIP timer, the CPU online callback and by the
248	* SUP_IOCTL_TSC_DELTA_MEASURE code. */
249	kTscDeltaThreadState_WaitAndMeasure,
250	/** The thread is currently servicing a measurement request.
251	* Previous state: WaitAndMeasure
252	* Next state: Listening, WaitAndMeasure, Terminate */
253	kTscDeltaThreadState_Measuring,
254	/** The thread is terminating.
255	* @remarks The thread won't enter this state on its own, is put into this state
256	* by supdrvTscDeltaTerm. */
257	kTscDeltaThreadState_Terminating,
258	/** The thread is butchered due to an unexpected error.
259	* Previous State: Creating, Listening, WaitAndMeasure */
260	kTscDeltaThreadState_Butchered,
261	/** The thread is destroyed (final).
262	* Previous state: Terminating */
263	kTscDeltaThreadState_Destroyed,
264	/** The usual 32-bit blowup hack. */
265	kTscDeltaThreadState_32BitHack = 0x7fffffff
266	} SUPDRVTSCDELTATHREADSTATE;
267	#endif /* SUPDRV_USE_TSC_DELTA_THREAD */
268
269	/**
270	* Memory reference types.
271	*/
272	typedef enum
273	{
274	/** Unused entry */
275	MEMREF_TYPE_UNUSED = 0,
276	/** Locked memory (r3 mapping only). */
277	MEMREF_TYPE_LOCKED,
278	/** Continuous memory block (r3 and r0 mapping). */
279	MEMREF_TYPE_CONT,
280	/** Low memory block (r3 and r0 mapping). */
281	MEMREF_TYPE_LOW,
282	/** Memory block (r3 and r0 mapping). */
283	MEMREF_TYPE_MEM,
284	/** Locked memory (r3 mapping only) allocated by the support driver. */
285	MEMREF_TYPE_PAGE,
286	/** Blow the type up to 32-bit and mark the end. */
287	MEMREF_TYPE_32BIT_HACK = 0x7fffffff
288	} SUPDRVMEMREFTYPE, *PSUPDRVMEMREFTYPE;
289
290
291	/**
292	* Structure used for tracking memory a session
293	* references in one way or another.
294	*/
295	typedef struct SUPDRVMEMREF
296	{
297	/** The memory object handle. */
298	RTR0MEMOBJ MemObj;
299	/** The ring-3 mapping memory object handle. */
300	RTR0MEMOBJ MapObjR3;
301	/** Type of memory. */
302	SUPDRVMEMREFTYPE eType;
303	} SUPDRVMEMREF, *PSUPDRVMEMREF;
304
305
306	/**
307	* Bundle of locked memory ranges.
308	*/
309	typedef struct SUPDRVBUNDLE
310	{
311	/** Pointer to the next bundle. */
312	struct SUPDRVBUNDLE * volatile pNext;
313	/** Referenced memory. */
314	SUPDRVMEMREF aMem[64];
315	/** Number of entries used. */
316	uint32_t volatile cUsed;
317	} SUPDRVBUNDLE, *PSUPDRVBUNDLE;
318
319
320	/**
321	* Loaded image.
322	*/
323	typedef struct SUPDRVLDRIMAGE
324	{
325	/** Next in chain. */
326	struct SUPDRVLDRIMAGE * volatile pNext;
327	/** Pointer to the image. */
328	void *pvImage;
329	/** Pointer to the allocated image buffer.
330	* pvImage is 32-byte aligned or it may governed by the native loader (this
331	* member is NULL then). */
332	void *pvImageAlloc;
333	/** Magic value (SUPDRVLDRIMAGE_MAGIC). */
334	uint32_t uMagic;
335	/** Size of the image including the tables. This is mainly for verification
336	* of the load request. */
337	uint32_t cbImageWithTabs;
338	/** Size of the image. */
339	uint32_t cbImageBits;
340	/** The number of entries in the symbol table. */
341	uint32_t cSymbols;
342	/** Pointer to the symbol table. */
343	PSUPLDRSYM paSymbols;
344	/** The offset of the string table. */
345	char *pachStrTab;
346	/** Size of the string table. */
347	uint32_t cbStrTab;
348	/** Pointer to the optional module initialization callback. */
349	PFNR0MODULEINIT pfnModuleInit;
350	/** Pointer to the optional module termination callback. */
351	PFNR0MODULETERM pfnModuleTerm;
352	/** Service request handler. This is NULL for non-service modules. */
353	PFNSUPR0SERVICEREQHANDLER pfnServiceReqHandler;
354	/** The ldr image state. (IOCtl code of last operation.) */
355	uint32_t uState;
356	/** Usage count. */
357	uint32_t volatile cUsage;
358	/** Pointer to the device extension. */
359	struct SUPDRVDEVEXT *pDevExt;
360	#ifdef RT_OS_WINDOWS
361	/** The section object for the loaded image (fNative=true). */
362	void *pvNtSectionObj;
363	/** Lock object. */
364	RTR0MEMOBJ hMemLock;
365	#endif
366	#if defined(RT_OS_SOLARIS) && defined(VBOX_WITH_NATIVE_SOLARIS_LOADING)
367	/** The Solaris module ID. */
368	int idSolMod;
369	/** Pointer to the module control structure. */
370	struct modctl *pSolModCtl;
371	#endif
372	#ifdef RT_OS_LINUX
373	/** Hack for seeing the module in perf, dtrace and other stack crawlers. */
374	struct module *pLnxModHack;
375	#endif
376	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_DARWIN_R0_DARWIN_IMAGE_VERIFICATION)
377	/** Load module handle. */
378	RTLDRMOD hLdrMod;
379	/** Allocate object. */
380	RTR0MEMOBJ hMemAlloc;
381	#endif
382	/** Whether it's loaded by the native loader or not. */
383	bool fNative;
384	/** Image name. */
385	char szName[32];
386	} SUPDRVLDRIMAGE, *PSUPDRVLDRIMAGE;
387
388	/** Magic value for SUPDRVLDRIMAGE::uMagic (Charlotte Bronte). */
389	#define SUPDRVLDRIMAGE_MAGIC UINT32_C(0x18160421)
390	/** Magic value for SUPDRVLDRIMAGE::uMagic when freed. */
391	#define SUPDRVLDRIMAGE_MAGIC_DEAD UINT32_C(0x18550331)
392
393
394	/** Image usage record. */
395	typedef struct SUPDRVLDRUSAGE
396	{
397	/** Next in chain. */
398	struct SUPDRVLDRUSAGE * volatile pNext;
399	/** The image. */
400	PSUPDRVLDRIMAGE pImage;
401	/** Load count (ring-3). */
402	uint32_t volatile cRing3Usage;
403	/** Ring-0 usage counter. */
404	uint32_t volatile cRing0Usage;
405	} SUPDRVLDRUSAGE, *PSUPDRVLDRUSAGE;
406
407
408	/**
409	* Component factory registration record.
410	*/
411	typedef struct SUPDRVFACTORYREG
412	{
413	/** Pointer to the next registration. */
414	struct SUPDRVFACTORYREG *pNext;
415	/** Pointer to the registered factory. */
416	PCSUPDRVFACTORY pFactory;
417	/** The session owning the factory.
418	* Used for deregistration and session cleanup. */
419	PSUPDRVSESSION pSession;
420	/** Length of the name. */
421	size_t cchName;
422	} SUPDRVFACTORYREG;
423	/** Pointer to a component factory registration record. */
424	typedef SUPDRVFACTORYREG *PSUPDRVFACTORYREG;
425	/** Pointer to a const component factory registration record. */
426	typedef SUPDRVFACTORYREG const *PCSUPDRVFACTORYREG;
427
428
429	/**
430	* Registered object.
431	* This takes care of reference counting and tracking data for access checks.
432	*/
433	typedef struct SUPDRVOBJ
434	{
435	/** Magic value (SUPDRVOBJ_MAGIC). */
436	uint32_t u32Magic;
437	/** The object type. */
438	SUPDRVOBJTYPE enmType;
439	/** Pointer to the next in the global list. */
440	struct SUPDRVOBJ * volatile pNext;
441	/** Pointer to the object destructor.
442	* This may be set to NULL if the image containing the destructor get unloaded. */
443	PFNSUPDRVDESTRUCTOR pfnDestructor;
444	/** User argument 1. */
445	void *pvUser1;
446	/** User argument 2. */
447	void *pvUser2;
448	/** The total sum of all per-session usage. */
449	uint32_t volatile cUsage;
450	/** The creator user id. */
451	RTUID CreatorUid;
452	/** The creator group id. */
453	RTGID CreatorGid;
454	/** The creator process id. */
455	RTPROCESS CreatorProcess;
456	} SUPDRVOBJ, *PSUPDRVOBJ;
457
458	/** Magic number for SUPDRVOBJ::u32Magic. (Dame Agatha Mary Clarissa Christie). */
459	#define SUPDRVOBJ_MAGIC UINT32_C(0x18900915)
460	/** Dead number magic for SUPDRVOBJ::u32Magic. */
461	#define SUPDRVOBJ_MAGIC_DEAD UINT32_C(0x19760112)
462
463	/**
464	* The per-session object usage record.
465	*/
466	typedef struct SUPDRVUSAGE
467	{
468	/** Pointer to the next in the list. */
469	struct SUPDRVUSAGE * volatile pNext;
470	/** Pointer to the object we're recording usage for. */
471	PSUPDRVOBJ pObj;
472	/** The usage count. */
473	uint32_t volatile cUsage;
474	} SUPDRVUSAGE, *PSUPDRVUSAGE;
475
476
477	/**
478	* I/O control context.
479	*/
480	typedef struct SUPR0IOCTLCTX
481	{
482	/** Magic value (SUPR0IOCTLCTX_MAGIC). */
483	uint32_t u32Magic;
484	/** Reference counter. */
485	uint32_t volatile cRefs;
486	#ifdef RT_OS_WINDOWS
487	# ifndef SUPDRV_AGNOSTIC
488	/** The file object, referenced. */
489	PFILE_OBJECT pFileObject;
490	/** The device object, not referenced. */
491	PDEVICE_OBJECT pDeviceObject;
492	/** Pointer to fast I/O routine if available. */
493	FAST_IO_DEVICE_CONTROL *pfnFastIoDeviceControl;
494	# else
495	void *apvPadding[3];
496	# endif
497	#endif
498	} SUPR0IOCTLCTX;
499	/** Magic value for SUPR0IOCTLCTX (Ahmad Jamal). */
500	#define SUPR0IOCTLCTX_MAGIC UINT32_C(0x19300702)
501
502
503	/**
504	* Per session data.
505	* This is mainly for memory tracking.
506	*/
507	typedef struct SUPDRVSESSION
508	{
509	/** Pointer to the device extension. */
510	PSUPDRVDEVEXT pDevExt;
511	/** Session Cookie. */
512	uint32_t u32Cookie;
513	/** Set if is an unrestricted session, clear if restricted. */
514	bool fUnrestricted;
515
516	/** Set if we're in the hash table, clear if not. Protected by the hash
517	* table spinlock. */
518	bool fInHashTable;
519	/** Reference counter. */
520	uint32_t volatile cRefs;
521	/** Pointer to the next session with the same hash (common hash table).
522	* Protected by the hash table spinlock. */
523	PSUPDRVSESSION pCommonNextHash;
524	/** Pointer to the OS specific session pointer, if available and in use.
525	* This is atomically set and cleared as the session is inserted and removed
526	* from the hash table (protected by the session hash table spinlock). */
527	PSUPDRVSESSION *ppOsSessionPtr;
528	/** The process (id) of the session. */
529	RTPROCESS Process;
530	/** Which process this session is associated with.
531	* This is NIL_RTR0PROCESS for kernel sessions and valid for user ones. */
532	RTR0PROCESS R0Process;
533
534	/** The GVM associated with the session.
535	* This is set by VMMR0. */
536	PGVM pSessionGVM;
537	/** The VM associated with the session.
538	* This is set by VMMR0. */
539	PVM pSessionVM;
540	/** Set to pSessionVM if fast I/O controlls are enabled. */
541	PVM pFastIoCtrlVM;
542	/** Handle table for IPRT semaphore wrapper APIs.
543	* This takes care of its own locking in an IRQ safe manner. */
544	RTHANDLETABLE hHandleTable;
545	/** Load usage records. (protected by SUPDRVDEVEXT::mtxLdr) */
546	PSUPDRVLDRUSAGE volatile pLdrUsage;
547
548	/** Spinlock protecting the bundles, the GIP members and the
549	* fProcessCleanupDone flag. It continues to be valid until the last
550	* reference to the session is released. */
551	RTSPINLOCK Spinlock;
552	/** The ring-3 mapping of the GIP (readonly). */
553	RTR0MEMOBJ GipMapObjR3;
554	/** Set if the session is using the GIP. */
555	uint32_t fGipReferenced;
556	/** Bundle of locked memory objects. */
557	SUPDRVBUNDLE Bundle;
558	/** List of generic usage records. (protected by SUPDRVDEVEXT::SpinLock) */
559	PSUPDRVUSAGE volatile pUsage;
560
561	/** The user id of the session. (Set by the OS part.) */
562	RTUID Uid;
563	/** The group id of the session. (Set by the OS part.) */
564	RTGID Gid;
565	/** Per session tracer specfic data. */
566	uintptr_t uTracerData;
567	/** The thread currently actively talking to the tracer. (One at the time!) */
568	RTNATIVETHREAD hTracerCaller;
569	/** List of tracepoint providers associated with the session
570	* (SUPDRVTPPROVIDER). */
571	RTLISTANCHOR TpProviders;
572	/** The number of providers in TpProviders. */
573	uint32_t cTpProviders;
574	/** The number of threads active in supdrvIOCtl_TracerUmodProbeFire or
575	* SUPR0TracerUmodProbeFire. */
576	uint32_t volatile cTpProbesFiring;
577	/** User tracepoint modules (PSUPDRVTRACKERUMOD). */
578	RTLISTANCHOR TpUmods;
579	/** The user tracepoint module lookup table. */
580	struct SUPDRVTRACERUMOD *apTpLookupTable[32];
581	/** Whether this is a GIP test-mode client session or not. */
582	bool fGipTestMode;
583	#ifndef SUPDRV_AGNOSTIC
584	# if defined(RT_OS_DARWIN)
585	/** Pointer to the associated org_virtualbox_SupDrvClient object. */
586	void *pvSupDrvClient;
587	/** Whether this session has been opened or not. */
588	bool fOpened;
589	# endif
590	# if defined(RT_OS_OS2)
591	/** The system file number of this session. */
592	uint16_t sfn;
593	uint16_t Alignment; /*< Alignment /
594	# endif
595	# if defined(RT_OS_DARWIN) \|\| defined(RT_OS_OS2) \|\| defined(RT_OS_SOLARIS)
596	/** Pointer to the next session with the same hash. */
597	PSUPDRVSESSION pNextHash;
598	# endif
599	# if defined(RT_OS_WINDOWS) && defined(VBOX_WITH_HARDENING)
600	/** Pointer to the process protection structure for this session. */
601	struct SUPDRVNTPROTECT *pNtProtect;
602	# endif
603	#endif /* !SUPDRV_AGNOSTIC */
604	} SUPDRVSESSION;
605
606
607	/**
608	* Device extension.
609	*/
610	typedef struct SUPDRVDEVEXT
611	{
612	/** Global cookie. */
613	uint32_t u32Cookie;
614	/** The actual size of SUPDRVSESSION. (SUPDRV_AGNOSTIC) */
615	uint32_t cbSession;
616
617	/** Spinlock to serialize the initialization, usage counting and objects.
618	* This is IRQ safe because we want to be able signal semaphores from the
619	* special HM context (and later maybe interrupt handlers), so we must be able
620	* to reference and dereference handles when IRQs are disabled. */
621	RTSPINLOCK Spinlock;
622
623	/** List of registered objects. Protected by the spinlock. */
624	PSUPDRVOBJ volatile pObjs;
625	/** List of free object usage records. */
626	PSUPDRVUSAGE volatile pUsageFree;
627
628	/** Loader mutex.
629	* This protects pvVMMR0, pvVMMR0Entry, pImages and SUPDRVSESSION::pLdrUsage. */
630	#ifdef SUPDRV_USE_MUTEX_FOR_LDR
631	RTSEMMUTEX mtxLdr;
632	#else
633	RTSEMFASTMUTEX mtxLdr;
634	#endif
635
636	/** VMM Module 'handle'.
637	* 0 if the code VMM isn't loaded and Idt are nops. */
638	void * volatile pvVMMR0;
639	/** VMMR0EntryFast() pointer. */
640	DECLR0CALLBACKMEMBER(void, pfnVMMR0EntryFast, (PGVM pGVM, PVM pVM, VMCPUID idCpu, uint32_t uOperation));
641	/** VMMR0EntryEx() pointer. */
642	DECLR0CALLBACKMEMBER(int, pfnVMMR0EntryEx, (PGVM pGVM, PVM pVM, VMCPUID idCpu, uint32_t uOperation,
643	PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession));
644
645	/** Linked list of loaded code. */
646	PSUPDRVLDRIMAGE volatile pLdrImages;
647	/** Set if the image loading interface got disabled after loading all needed images */
648	bool fLdrLockedDown;
649
650	/** @name These members for detecting whether an API caller is in ModuleInit.
651	* Certain APIs are only permitted from ModuleInit, like for instance tracepoint
652	* registration.
653	* @{ */
654	/** The image currently executing its ModuleInit. */
655	PSUPDRVLDRIMAGE volatile pLdrInitImage;
656	/** The thread currently executing a ModuleInit function. */
657	RTNATIVETHREAD volatile hLdrInitThread;
658	/** The thread currently executing a ModuleTerm function. */
659	RTNATIVETHREAD volatile hLdrTermThread;
660	/** @} */
661
662	/** Number of times someone reported bad execution context via SUPR0BadContext.
663	* (This is times EFLAGS.AC is zero when we expected it to be 1.) */
664	uint32_t volatile cBadContextCalls;
665
666	/** GIP mutex.
667	* Any changes to any of the GIP members requires ownership of this mutex,
668	* except on driver init and termination. */
669	#ifdef SUPDRV_USE_MUTEX_FOR_GIP
670	RTSEMMUTEX mtxGip;
671	#else
672	RTSEMFASTMUTEX mtxGip;
673	#endif
674	/** GIP spinlock protecting GIP members during Mp events.
675	* This is IRQ safe since be may get MP callbacks in contexts where IRQs are
676	* disabled (on some platforms). */
677	RTSPINLOCK hGipSpinlock;
678	/** Pointer to the Global Info Page (GIP). */
679	PSUPGLOBALINFOPAGE pGip;
680	/** The physical address of the GIP. */
681	RTHCPHYS HCPhysGip;
682	/** Number of processes using the GIP.
683	* (The updates are suspend while cGipUsers is 0.)*/
684	uint32_t volatile cGipUsers;
685	/** The ring-0 memory object handle for the GIP page. */
686	RTR0MEMOBJ GipMemObj;
687	/** The GIP timer handle. */
688	PRTTIMER pGipTimer;
689	/** If non-zero we've successfully called RTTimerRequestSystemGranularity(). */
690	uint32_t u32SystemTimerGranularityGrant;
691	/** The CPU id of the GIP master.
692	* This CPU is responsible for the updating the common GIP data and it is
693	* the one used to calculate TSC deltas relative to.
694	* (The initial master will have a 0 zero value, but it it goes offline the
695	* new master may have a non-zero value.) */
696	RTCPUID volatile idGipMaster;
697
698	/** Component factory mutex.
699	* This protects pComponentFactoryHead and component factory querying. */
700	RTSEMFASTMUTEX mtxComponentFactory;
701	/** The head of the list of registered component factories. */
702	PSUPDRVFACTORYREG pComponentFactoryHead;
703
704	/** Lock protecting The tracer members. */
705	RTSEMFASTMUTEX mtxTracer;
706	/** List of tracer providers (SUPDRVTPPROVIDER). */
707	RTLISTANCHOR TracerProviderList;
708	/** List of zombie tracer providers (SUPDRVTPPROVIDER). */
709	RTLISTANCHOR TracerProviderZombieList;
710	/** Pointer to the tracer registration record. */
711	PCSUPDRVTRACERREG pTracerOps;
712	/** The ring-0 session of a native tracer provider. */
713	PSUPDRVSESSION pTracerSession;
714	/** The image containing the tracer. */
715	PSUPDRVLDRIMAGE pTracerImage;
716	/** The tracer helpers. */
717	SUPDRVTRACERHLP TracerHlp;
718	/** The number of session having opened the tracer currently. */
719	uint32_t cTracerOpens;
720	/** The number of threads currently calling into the tracer. */
721	uint32_t volatile cTracerCallers;
722	/** Set if the tracer is being unloaded. */
723	bool fTracerUnloading;
724	/** Hash table for user tracer modules (SUPDRVVTGCOPY). */
725	RTLISTANCHOR aTrackerUmodHash[128];
726
727	/** @name Session Handle Table.
728	* @{ */
729	/** Spinlock protecting apSessionHashTab, cSessions,
730	* SUPDRVSESSION::ppOsSessionPtr, SUPDRVSESSION::pCommonNextHash, and possibly
731	* others depending on the OS. */
732	RTSPINLOCK hSessionHashTabSpinlock;
733	/** Session hash table hash table. The size of this table must make sense in
734	* comparison to GVMM_MAX_HANDLES. */
735	PSUPDRVSESSION apSessionHashTab[HC_ARCH_BITS == 64 ? 8191 : 127];
736	/** The number of open sessions. */
737	int32_t cSessions;
738	/** @} */
739
740	/** @name Invariant TSC frequency refinement.
741	* @{ */
742	/** Nanosecond timestamp at the start of the TSC frequency refinement phase. */
743	uint64_t nsStartInvarTscRefine;
744	/** TSC reading at the start of the TSC frequency refinement phase. */
745	uint64_t uTscStartInvarTscRefine;
746	/** The CPU id of the CPU that u64TscAnchor was measured on. */
747	RTCPUID idCpuInvarTscRefine;
748	/** Pointer to the timer used to refine the TSC frequency. */
749	PRTTIMER pInvarTscRefineTimer;
750	/** Stop the timer on the next tick because we saw a power event. */
751	bool volatile fInvTscRefinePowerEvent;
752	/** @} */
753
754	/** @name TSC-delta measurement.
755	* @{ */
756	/** Number of online/offline events, incremented each time a CPU goes online
757	* or offline. */
758	uint32_t volatile cMpOnOffEvents;
759	/** TSC-delta measurement mutext.
760	* At the moment, we don't want to have more than one measurement going on at
761	* any one time. We might be using broadcast IPIs which are heavy and could
762	* perhaps get in each others way. */
763	#ifdef SUPDRV_USE_MUTEX_FOR_GIP
764	RTSEMMUTEX mtxTscDelta;
765	#else
766	RTSEMFASTMUTEX mtxTscDelta;
767	#endif
768	/** The set of CPUs we need to take measurements for. */
769	RTCPUSET TscDeltaCpuSet;
770	/** The set of CPUs we have completed taken measurements for. */
771	RTCPUSET TscDeltaObtainedCpuSet;
772	/** @} */
773
774	#ifdef SUPDRV_USE_TSC_DELTA_THREAD
775	/** @name TSC-delta measurement thread.
776	* @{ */
777	/** Spinlock protecting enmTscDeltaThreadState. */
778	RTSPINLOCK hTscDeltaSpinlock;
779	/** TSC-delta measurement thread. */
780	RTTHREAD hTscDeltaThread;
781	/** The event signalled during state changes to the TSC-delta thread. */
782	RTSEMEVENT hTscDeltaEvent;
783	/** The state of the TSC-delta measurement thread. */
784	SUPDRVTSCDELTATHREADSTATE enmTscDeltaThreadState;
785	/** Thread timeout time before rechecking state in ms. */
786	RTMSINTERVAL cMsTscDeltaTimeout;
787	/** Whether the TSC-delta measurement was successful. */
788	int32_t volatile rcTscDelta;
789	/** Tell the thread we want TSC-deltas for all CPUs with retries. */
790	bool fTscThreadRecomputeAllDeltas;
791	/** @} */
792	#endif
793
794	/** @name GIP test mode.
795	* @{ */
796	/** Reference counter for GIP test-mode sessions. */
797	uint32_t cGipTestModeRefs;
798	/** Cache of TSC frequency before enabling test-mode on invariant GIP systems. */
799	uint64_t uGipTestModeInvariantCpuHz;
800	/** @} */
801
802	/*
803	* Note! The non-agnostic bits must be at the very end of the structure!
804	*/
805	#ifndef SUPDRV_AGNOSTIC
806	# ifdef RT_OS_WINDOWS
807	/** Callback object returned by ExCreateCallback. */
808	PCALLBACK_OBJECT pObjPowerCallback;
809	/** Callback handle returned by ExRegisterCallback. */
810	PVOID hPowerCallback;
811	# elif defined(RT_OS_DARWIN) && defined(VBOX_WITH_DARWIN_R0_DARWIN_IMAGE_VERIFICATION)
812	/** Trusted root certificates for code signing validation. */
813	RTCRSTORE hRootStore;
814	/** Intermedite certificates for code signing validation. */
815	RTCRSTORE hAdditionalStore;
816	# endif
817	#endif
818	} SUPDRVDEVEXT;
819
820	/** Calculates the index into g_apSessionHashTab.*/
821	#define SUPDRV_SESSION_HASH(a_pid) ( (a_pid) % RT_ELEMENTS(((SUPDRVDEVEXT *)NULL)->apSessionHashTab) )
822
823
824	RT_C_DECLS_BEGIN
825
826	/*******************************************************************************
827	* OS Specific Functions *
828	*******************************************************************************/
829	/**
830	* Called to clean up the session structure before it's freed.
831	*
832	* @param pDevExt The device globals.
833	* @param pSession The session that's being cleaned up.
834	*/
835	void VBOXCALL supdrvOSCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
836
837	/**
838	* Called to let the OS specfic code perform additional insertion work while
839	* still under the protection of the hash table spinlock.
840	*
841	* @param pDevExt The device globals.
842	* @param pSession The session that was inserted.
843	* @param pvUser User context specified to the insert call.
844	*/
845	void VBOXCALL supdrvOSSessionHashTabInserted(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, void *pvUser);
846
847	/**
848	* Called to let the OS specfic code perform additional removal work while still
849	* under the protection of the hash table spinlock.
850	*
851	* @param pDevExt The device globals.
852	* @param pSession The session that was removed.
853	* @param pvUser User context specified to the remove call.
854	*/
855	void VBOXCALL supdrvOSSessionHashTabRemoved(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, void *pvUser);
856
857	/**
858	* Called during GIP initializtion to calc the CPU group table size.
859	*
860	* This is currently only implemented on windows [lazy bird].
861	*
862	* @returns Number of bytes needed for SUPGIPCPUGROUP structures.
863	* @param pDevExt The device globals.
864	*/
865	size_t VBOXCALL supdrvOSGipGetGroupTableSize(PSUPDRVDEVEXT pDevExt);
866
867	/**
868	* Called during GIP initialization to set up the group table and group count.
869	*
870	* This is currently only implemented on windows [lazy bird].
871	*
872	* @param pDevExt The device globals.
873	* @param pGip The GIP which group table needs initialization.
874	* It's only partially initialized at this point.
875	* @param cbGipCpuGroups What supdrvOSGipGetGroupTableSize returned.
876	*/
877	int VBOXCALL supdrvOSInitGipGroupTable(PSUPDRVDEVEXT pDevExt, PSUPGLOBALINFOPAGE pGip, size_t cbGipCpuGroups);
878
879	/**
880	* Initializes the group related members when a CPU is added to the GIP.
881	*
882	* This is called both during GIP initalization and during an CPU online event.
883	*
884	* This is currently only implemented on windows [lazy bird].
885	*
886	* @returns CPU group number.
887	* @param pDevExt The device globals.
888	* @param pGip The GIP.
889	* @param pGipCpu The GIP CPU structure being initialized.
890	*/
891	void VBOXCALL supdrvOSGipInitGroupBitsForCpu(PSUPDRVDEVEXT pDevExt, PSUPGLOBALINFOPAGE pGip, PSUPGIPCPU pGipCpu);
892
893	void VBOXCALL supdrvOSObjInitCreator(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession);
894	bool VBOXCALL supdrvOSObjCanAccess(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession, const char pszObjName, int prc);
895	bool VBOXCALL supdrvOSGetForcedAsyncTscMode(PSUPDRVDEVEXT pDevExt);
896	bool VBOXCALL supdrvOSAreCpusOfflinedOnSuspend(void);
897	bool VBOXCALL supdrvOSAreTscDeltasInSync(void);
898	int VBOXCALL supdrvOSEnableVTx(bool fEnabled);
899	RTCCUINTREG VBOXCALL supdrvOSChangeCR4(RTCCUINTREG fOrMask, RTCCUINTREG fAndMask);
900	bool VBOXCALL supdrvOSSuspendVTxOnCpu(void);
901	void VBOXCALL supdrvOSResumeVTxOnCpu(bool fSuspended);
902	int VBOXCALL supdrvOSGetCurrentGdtRw(RTHCUINTPTR *pGdtRw);
903
904	/**
905	* Try open the image using the native loader.
906	*
907	* @returns IPRT status code.
908	* @retval VERR_NOT_SUPPORTED if native loading isn't supported.
909	*
910	* @param pDevExt The device globals.
911	* @param pImage The image handle. pvImage should be set on
912	* success, pvImageAlloc can also be set if
913	* appropriate.
914	* @param pszFilename The file name - UTF-8, may containing UNIX
915	* slashes on non-UNIX systems.
916	*/
917	int VBOXCALL supdrvOSLdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const char *pszFilename);
918
919	/**
920	* Notification call indicating that a image is being opened for the first time.
921	*
922	* Called for both native and non-native images (after supdrvOSLdrOpen). Can be
923	* used to log the load address of the image or inform the kernel about the
924	* alien image.
925	*
926	* @param pDevExt The device globals.
927	* @param pImage The image handle.
928	* @param pszFilename The file name - UTF-8, may containing UNIX
929	* slashes on non-UNIX systems.
930	*/
931	void VBOXCALL supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const char *pszFilename);
932
933	/**
934	* Validates an entry point address.
935	*
936	* Called before supdrvOSLdrLoad.
937	*
938	* @returns IPRT status code.
939	* @param pDevExt The device globals.
940	* @param pImage The image data (still in the open state).
941	* @param pv The address within the image.
942	* @param pbImageBits The image bits as loaded by ring-3.
943	* @param pszSymbol The name of the entrypoint being checked.
944	*/
945	int VBOXCALL supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage,
946	void pv, const uint8_t pbImageBits, const char *pszSymbol);
947
948	/**
949	* Load the image.
950	*
951	* @returns IPRT status code.
952	* @param pDevExt The device globals.
953	* @param pImage The image data (up to date). Adjust entrypoints
954	* and exports if necessary.
955	* @param pbImageBits The image bits as loaded by ring-3.
956	* @param pReq Pointer to the request packet so that the VMMR0
957	* entry points can be adjusted.
958	*/
959	int VBOXCALL supdrvOSLdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const uint8_t *pbImageBits, PSUPLDRLOAD pReq);
960
961	/**
962	* Unload the image (only called if supdrvOSLdrOpen returned success).
963	*
964	* @param pDevExt The device globals.
965	* @param pImage The image data (mostly still valid).
966	*/
967	void VBOXCALL supdrvOSLdrUnload(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
968
969	/**
970	* Notification call indicating that a image is being unloaded.
971	*
972	* Called for both native and non-native images. In the former case, it's
973	* called after supdrvOSLdrUnload.
974	*
975	* @param pDevExt The device globals.
976	* @param pImage The image handle.
977	*/
978	void VBOXCALL supdrvOSLdrNotifyUnloaded(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
979
980	/**
981	* Queries a symbol address is a native module.
982	*
983	* @returns IPRT status code.
984	* @param pDevExt The device globals.
985	* @param pImage The image to search.
986	* @param pszSymbol The symbol to search for.
987	* @param cchSymbol The length of the symbol.
988	* @param ppvSymbol Where to return the symbol address if found.
989	*/
990	int VBOXCALL supdrvOSLdrQuerySymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage,
991	const char pszSymbol, size_t cchSymbol, void *ppvSymbol);
992
993
994	#ifdef SUPDRV_WITH_MSR_PROBER
995
996	/**
997	* Tries to read an MSR.
998	*
999	* @returns One of the listed VBox status codes.
1000	* @retval VINF_SUCCESS if read successfully, value in *puValue.
1001	* @retval VERR_ACCESS_DENIED if we couldn't read it (GP).
1002	* @retval VERR_NOT_SUPPORTED if not supported.
1003	*
1004	* @param uMsr The MSR to read from.
1005	* @param idCpu The CPU to read the MSR on. NIL_RTCPUID
1006	* indicates any suitable CPU.
1007	* @param puValue Where to return the value.
1008	*/
1009	int VBOXCALL supdrvOSMsrProberRead(uint32_t uMsr, RTCPUID idCpu, uint64_t *puValue);
1010
1011	/**
1012	* Tries to write an MSR.
1013	*
1014	* @returns One of the listed VBox status codes.
1015	* @retval VINF_SUCCESS if written successfully.
1016	* @retval VERR_ACCESS_DENIED if we couldn't write the value to it (GP).
1017	* @retval VERR_NOT_SUPPORTED if not supported.
1018	*
1019	* @param uMsr The MSR to write to.
1020	* @param idCpu The CPU to write the MSR on. NIL_RTCPUID
1021	* indicates any suitable CPU.
1022	* @param uValue The value to write.
1023	*/
1024	int VBOXCALL supdrvOSMsrProberWrite(uint32_t uMsr, RTCPUID idCpu, uint64_t uValue);
1025
1026	/**
1027	* Tries to modify an MSR value.
1028	*
1029	* @returns One of the listed VBox status codes.
1030	* @retval VINF_SUCCESS if succeeded.
1031	* @retval VERR_NOT_SUPPORTED if not supported.
1032	*
1033	* @param idCpu The CPU to modify the MSR on. NIL_RTCPUID
1034	* indicates any suitable CPU.
1035	* @param pReq The request packet with input arguments and
1036	* where to store the results.
1037	*/
1038	int VBOXCALL supdrvOSMsrProberModify(RTCPUID idCpu, PSUPMSRPROBER pReq);
1039
1040	#endif /* SUPDRV_WITH_MSR_PROBER */
1041
1042	#if defined(RT_OS_DARWIN)
1043	int VBOXCALL supdrvDarwinResumeSuspendedKbds(void);
1044	#endif
1045
1046
1047	/*********************************************************************************************************************************
1048	* Shared Functions *
1049	*********************************************************************************************************************************/
1050	/* SUPDrv.c */
1051	int VBOXCALL supdrvIOCtl(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr, size_t cbReq);
1052	int VBOXCALL supdrvIOCtlFast(uintptr_t uOperation, VMCPUID idCpu, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
1053	int VBOXCALL supdrvIDC(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQHDR pReqHdr);
1054	int VBOXCALL supdrvInitDevExt(PSUPDRVDEVEXT pDevExt, size_t cbSession);
1055	void VBOXCALL supdrvDeleteDevExt(PSUPDRVDEVEXT pDevExt);
1056	int VBOXCALL supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, bool fUnrestricted, PSUPDRVSESSION *ppSession);
1057	int VBOXCALL supdrvSessionHashTabInsert(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVSESSION ppOsSessionPtr, void pvUser);
1058	int VBOXCALL supdrvSessionHashTabRemove(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, void *pvUser);
1059	PSUPDRVSESSION VBOXCALL supdrvSessionHashTabLookup(PSUPDRVDEVEXT pDevExt, RTPROCESS Process, RTR0PROCESS R0Process,
1060	PSUPDRVSESSION *ppOsSessionPtr);
1061	uint32_t VBOXCALL supdrvSessionRetain(PSUPDRVSESSION pSession);
1062	uint32_t VBOXCALL supdrvSessionRelease(PSUPDRVSESSION pSession);
1063	void VBOXCALL supdrvBadContext(PSUPDRVDEVEXT pDevExt, const char pszFile, uint32_t uLine, const char pszExtra);
1064	int VBOXCALL supdrvQueryVTCapsInternal(uint32_t *pfCaps);
1065	int VBOXCALL supdrvLdrLoadError(int rc, PSUPLDRLOAD pReq, const char *pszFormat, ...);
1066	int VBOXCALL supdrvLdrGetExportedSymbol(const char pszSymbol, uintptr_t puValue);
1067
1068	/* SUPDrvGip.cpp */
1069	int VBOXCALL supdrvGipCreate(PSUPDRVDEVEXT pDevExt);
1070	void VBOXCALL supdrvGipDestroy(PSUPDRVDEVEXT pDevExt);
1071	int VBOXCALL supdrvIOCtl_TscDeltaMeasure(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPTSCDELTAMEASURE pReq);
1072	int VBOXCALL supdrvIOCtl_TscRead(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPTSCREAD pReq);
1073	int VBOXCALL supdrvIOCtl_GipSetFlags(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, uint32_t fOrMask, uint32_t fAndMask);
1074
1075
1076	/* SUPDrvTracer.cpp */
1077	int VBOXCALL supdrvTracerInit(PSUPDRVDEVEXT pDevExt);
1078	void VBOXCALL supdrvTracerTerm(PSUPDRVDEVEXT pDevExt);
1079	void VBOXCALL supdrvTracerModuleUnloading(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
1080	void VBOXCALL supdrvTracerCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
1081	int VBOXCALL supdrvIOCtl_TracerUmodRegister(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession,
1082	RTR3PTR R3PtrVtgHdr, RTUINTPTR uVtgHdrAddr,
1083	RTR3PTR R3PtrStrTab, uint32_t cbStrTab,
1084	const char *pszModName, uint32_t fFlags);
1085	int VBOXCALL supdrvIOCtl_TracerUmodDeregister(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, RTR3PTR R3PtrVtgHdr);
1086	void VBOXCALL supdrvIOCtl_TracerUmodProbeFire(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVTRACERUSRCTX pCtx);
1087	int VBOXCALL supdrvIOCtl_TracerOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, uint32_t uCookie, uintptr_t uArg);
1088	int VBOXCALL supdrvIOCtl_TracerClose(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
1089	int VBOXCALL supdrvIOCtl_TracerIOCtl(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal);
1090	extern PFNRT g_pfnSupdrvProbeFireKernel;
1091	DECLASM(void) supdrvTracerProbeFireStub(void);
1092
1093	#ifdef VBOX_WITH_NATIVE_DTRACE
1094	const SUPDRVTRACERREG * VBOXCALL supdrvDTraceInit(void);
1095	#endif
1096
1097	RT_C_DECLS_END
1098
1099	#endif /* !VBOX_INCLUDED_SRC_Support_SUPDrvInternal_h */
1100

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source: vbox/trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h@ 85416

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