SUPDrvInternal.h@ 78177

Last change on this file since 78177 was 76568, checked in by vboxsync, 6 years ago
HostDrivers: Use VBOX_INCLUDED_SRC_ as header guard prefix with scm.
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1	/* $Id: SUPDrvInternal.h 76568 2019-01-01 04:34:11Z vboxsync $ */
2	/** @file
3	* VirtualBox Support Driver - Internal header.
4	*/
5
6	/*
7	* Copyright (C) 2006-2019 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	/** Size of the image including the tables. This is mainly for verification
334	* of the load request. */
335	uint32_t cbImageWithTabs;
336	/** Size of the image. */
337	uint32_t cbImageBits;
338	/** The number of entries in the symbol table. */
339	uint32_t cSymbols;
340	/** Pointer to the symbol table. */
341	PSUPLDRSYM paSymbols;
342	/** The offset of the string table. */
343	char *pachStrTab;
344	/** Size of the string table. */
345	uint32_t cbStrTab;
346	/** Pointer to the optional module initialization callback. */
347	PFNR0MODULEINIT pfnModuleInit;
348	/** Pointer to the optional module termination callback. */
349	PFNR0MODULETERM pfnModuleTerm;
350	/** Service request handler. This is NULL for non-service modules. */
351	PFNSUPR0SERVICEREQHANDLER pfnServiceReqHandler;
352	/** The ldr image state. (IOCtl code of last operation.) */
353	uint32_t uState;
354	/** Usage count. */
355	uint32_t volatile cUsage;
356	/** Pointer to the device extension. */
357	struct SUPDRVDEVEXT *pDevExt;
358	#ifdef RT_OS_WINDOWS
359	/** The section object for the loaded image (fNative=true). */
360	void *pvNtSectionObj;
361	/** Lock object. */
362	RTR0MEMOBJ hMemLock;
363	#endif
364	#if defined(RT_OS_SOLARIS) && defined(VBOX_WITH_NATIVE_SOLARIS_LOADING)
365	/** The Solaris module ID. */
366	int idSolMod;
367	/** Pointer to the module control structure. */
368	struct modctl *pSolModCtl;
369	#endif
370	#ifdef RT_OS_LINUX
371	/** Hack for seeing the module in perf, dtrace and other stack crawlers. */
372	struct module *pLnxModHack;
373	#endif
374	#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_DARWIN_R0_DARWIN_IMAGE_VERIFICATION)
375	/** Load module handle. */
376	RTLDRMOD hLdrMod;
377	/** Allocate object. */
378	RTR0MEMOBJ hMemAlloc;
379	#endif
380	/** Whether it's loaded by the native loader or not. */
381	bool fNative;
382	/** Image name. */
383	char szName[32];
384	} SUPDRVLDRIMAGE, *PSUPDRVLDRIMAGE;
385
386
387	/** Image usage record. */
388	typedef struct SUPDRVLDRUSAGE
389	{
390	/** Next in chain. */
391	struct SUPDRVLDRUSAGE * volatile pNext;
392	/** The image. */
393	PSUPDRVLDRIMAGE pImage;
394	/** Load count. */
395	uint32_t volatile cUsage;
396	} SUPDRVLDRUSAGE, *PSUPDRVLDRUSAGE;
397
398
399	/**
400	* Component factory registration record.
401	*/
402	typedef struct SUPDRVFACTORYREG
403	{
404	/** Pointer to the next registration. */
405	struct SUPDRVFACTORYREG *pNext;
406	/** Pointer to the registered factory. */
407	PCSUPDRVFACTORY pFactory;
408	/** The session owning the factory.
409	* Used for deregistration and session cleanup. */
410	PSUPDRVSESSION pSession;
411	/** Length of the name. */
412	size_t cchName;
413	} SUPDRVFACTORYREG;
414	/** Pointer to a component factory registration record. */
415	typedef SUPDRVFACTORYREG *PSUPDRVFACTORYREG;
416	/** Pointer to a const component factory registration record. */
417	typedef SUPDRVFACTORYREG const *PCSUPDRVFACTORYREG;
418
419
420	/**
421	* Registered object.
422	* This takes care of reference counting and tracking data for access checks.
423	*/
424	typedef struct SUPDRVOBJ
425	{
426	/** Magic value (SUPDRVOBJ_MAGIC). */
427	uint32_t u32Magic;
428	/** The object type. */
429	SUPDRVOBJTYPE enmType;
430	/** Pointer to the next in the global list. */
431	struct SUPDRVOBJ * volatile pNext;
432	/** Pointer to the object destructor.
433	* This may be set to NULL if the image containing the destructor get unloaded. */
434	PFNSUPDRVDESTRUCTOR pfnDestructor;
435	/** User argument 1. */
436	void *pvUser1;
437	/** User argument 2. */
438	void *pvUser2;
439	/** The total sum of all per-session usage. */
440	uint32_t volatile cUsage;
441	/** The creator user id. */
442	RTUID CreatorUid;
443	/** The creator group id. */
444	RTGID CreatorGid;
445	/** The creator process id. */
446	RTPROCESS CreatorProcess;
447	} SUPDRVOBJ, *PSUPDRVOBJ;
448
449	/** Magic number for SUPDRVOBJ::u32Magic. (Dame Agatha Mary Clarissa Christie). */
450	#define SUPDRVOBJ_MAGIC UINT32_C(0x18900915)
451	/** Dead number magic for SUPDRVOBJ::u32Magic. */
452	#define SUPDRVOBJ_MAGIC_DEAD UINT32_C(0x19760112)
453
454	/**
455	* The per-session object usage record.
456	*/
457	typedef struct SUPDRVUSAGE
458	{
459	/** Pointer to the next in the list. */
460	struct SUPDRVUSAGE * volatile pNext;
461	/** Pointer to the object we're recording usage for. */
462	PSUPDRVOBJ pObj;
463	/** The usage count. */
464	uint32_t volatile cUsage;
465	} SUPDRVUSAGE, *PSUPDRVUSAGE;
466
467
468	/**
469	* I/O control context.
470	*/
471	typedef struct SUPR0IOCTLCTX
472	{
473	/** Magic value (SUPR0IOCTLCTX_MAGIC). */
474	uint32_t u32Magic;
475	/** Reference counter. */
476	uint32_t volatile cRefs;
477	#ifdef RT_OS_WINDOWS
478	# ifndef SUPDRV_AGNOSTIC
479	/** The file object, referenced. */
480	PFILE_OBJECT pFileObject;
481	/** The device object, not referenced. */
482	PDEVICE_OBJECT pDeviceObject;
483	/** Pointer to fast I/O routine if available. */
484	FAST_IO_DEVICE_CONTROL *pfnFastIoDeviceControl;
485	# else
486	void *apvPadding[3];
487	# endif
488	#endif
489	} SUPR0IOCTLCTX;
490	/** Magic value for SUPR0IOCTLCTX (Ahmad Jamal). */
491	#define SUPR0IOCTLCTX_MAGIC UINT32_C(0x19300702)
492
493
494	/**
495	* Per session data.
496	* This is mainly for memory tracking.
497	*/
498	typedef struct SUPDRVSESSION
499	{
500	/** Pointer to the device extension. */
501	PSUPDRVDEVEXT pDevExt;
502	/** Session Cookie. */
503	uint32_t u32Cookie;
504	/** Set if is an unrestricted session, clear if restricted. */
505	bool fUnrestricted;
506
507	/** Set if we're in the hash table, clear if not. Protected by the hash
508	* table spinlock. */
509	bool fInHashTable;
510	/** Reference counter. */
511	uint32_t volatile cRefs;
512	/** Pointer to the next session with the same hash (common hash table).
513	* Protected by the hash table spinlock. */
514	PSUPDRVSESSION pCommonNextHash;
515	/** Pointer to the OS specific session pointer, if available and in use.
516	* This is atomically set and cleared as the session is inserted and removed
517	* from the hash table (protected by the session hash table spinlock). */
518	PSUPDRVSESSION *ppOsSessionPtr;
519	/** The process (id) of the session. */
520	RTPROCESS Process;
521	/** Which process this session is associated with.
522	* This is NIL_RTR0PROCESS for kernel sessions and valid for user ones. */
523	RTR0PROCESS R0Process;
524
525	/** The GVM associated with the session.
526	* This is set by VMMR0. */
527	PGVM pSessionGVM;
528	/** The VM associated with the session.
529	* This is set by VMMR0. */
530	PVM pSessionVM;
531	/** Set to pSessionVM if fast I/O controlls are enabled. */
532	PVM pFastIoCtrlVM;
533	/** Handle table for IPRT semaphore wrapper APIs.
534	* This takes care of its own locking in an IRQ safe manner. */
535	RTHANDLETABLE hHandleTable;
536	/** Load usage records. (protected by SUPDRVDEVEXT::mtxLdr) */
537	PSUPDRVLDRUSAGE volatile pLdrUsage;
538
539	/** Spinlock protecting the bundles, the GIP members and the
540	* fProcessCleanupDone flag. It continues to be valid until the last
541	* reference to the session is released. */
542	RTSPINLOCK Spinlock;
543	/** The ring-3 mapping of the GIP (readonly). */
544	RTR0MEMOBJ GipMapObjR3;
545	/** Set if the session is using the GIP. */
546	uint32_t fGipReferenced;
547	/** Bundle of locked memory objects. */
548	SUPDRVBUNDLE Bundle;
549	/** List of generic usage records. (protected by SUPDRVDEVEXT::SpinLock) */
550	PSUPDRVUSAGE volatile pUsage;
551
552	/** The user id of the session. (Set by the OS part.) */
553	RTUID Uid;
554	/** The group id of the session. (Set by the OS part.) */
555	RTGID Gid;
556	/** Per session tracer specfic data. */
557	uintptr_t uTracerData;
558	/** The thread currently actively talking to the tracer. (One at the time!) */
559	RTNATIVETHREAD hTracerCaller;
560	/** List of tracepoint providers associated with the session
561	* (SUPDRVTPPROVIDER). */
562	RTLISTANCHOR TpProviders;
563	/** The number of providers in TpProviders. */
564	uint32_t cTpProviders;
565	/** The number of threads active in supdrvIOCtl_TracerUmodProbeFire or
566	* SUPR0TracerUmodProbeFire. */
567	uint32_t volatile cTpProbesFiring;
568	/** User tracepoint modules (PSUPDRVTRACKERUMOD). */
569	RTLISTANCHOR TpUmods;
570	/** The user tracepoint module lookup table. */
571	struct SUPDRVTRACERUMOD *apTpLookupTable[32];
572	/** Whether this is a GIP test-mode client session or not. */
573	bool fGipTestMode;
574	#ifndef SUPDRV_AGNOSTIC
575	# if defined(RT_OS_DARWIN)
576	/** Pointer to the associated org_virtualbox_SupDrvClient object. */
577	void *pvSupDrvClient;
578	/** Whether this session has been opened or not. */
579	bool fOpened;
580	# endif
581	# if defined(RT_OS_OS2)
582	/** The system file number of this session. */
583	uint16_t sfn;
584	uint16_t Alignment; /*< Alignment /
585	# endif
586	# if defined(RT_OS_DARWIN) \|\| defined(RT_OS_OS2) \|\| defined(RT_OS_SOLARIS)
587	/** Pointer to the next session with the same hash. */
588	PSUPDRVSESSION pNextHash;
589	# endif
590	# if defined(RT_OS_WINDOWS) && defined(VBOX_WITH_HARDENING)
591	/** Pointer to the process protection structure for this session. */
592	struct SUPDRVNTPROTECT *pNtProtect;
593	# endif
594	#endif /* !SUPDRV_AGNOSTIC */
595	} SUPDRVSESSION;
596
597
598	/**
599	* Device extension.
600	*/
601	typedef struct SUPDRVDEVEXT
602	{
603	/** Global cookie. */
604	uint32_t u32Cookie;
605	/** The actual size of SUPDRVSESSION. (SUPDRV_AGNOSTIC) */
606	uint32_t cbSession;
607
608	/** Spinlock to serialize the initialization, usage counting and objects.
609	* This is IRQ safe because we want to be able signal semaphores from the
610	* special HM context (and later maybe interrupt handlers), so we must be able
611	* to reference and dereference handles when IRQs are disabled. */
612	RTSPINLOCK Spinlock;
613
614	/** List of registered objects. Protected by the spinlock. */
615	PSUPDRVOBJ volatile pObjs;
616	/** List of free object usage records. */
617	PSUPDRVUSAGE volatile pUsageFree;
618
619	/** Loader mutex.
620	* This protects pvVMMR0, pvVMMR0Entry, pImages and SUPDRVSESSION::pLdrUsage. */
621	#ifdef SUPDRV_USE_MUTEX_FOR_LDR
622	RTSEMMUTEX mtxLdr;
623	#else
624	RTSEMFASTMUTEX mtxLdr;
625	#endif
626
627	/** VMM Module 'handle'.
628	* 0 if the code VMM isn't loaded and Idt are nops. */
629	void * volatile pvVMMR0;
630	/** VMMR0EntryFast() pointer. */
631	DECLR0CALLBACKMEMBER(void, pfnVMMR0EntryFast, (PGVM pGVM, PVM pVM, VMCPUID idCpu, uint32_t uOperation));
632	/** VMMR0EntryEx() pointer. */
633	DECLR0CALLBACKMEMBER(int, pfnVMMR0EntryEx, (PGVM pGVM, PVM pVM, VMCPUID idCpu, uint32_t uOperation,
634	PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession));
635
636	/** Linked list of loaded code. */
637	PSUPDRVLDRIMAGE volatile pLdrImages;
638	/** Set if the image loading interface got disabled after loading all needed images */
639	bool fLdrLockedDown;
640
641	/** @name These members for detecting whether an API caller is in ModuleInit.
642	* Certain APIs are only permitted from ModuleInit, like for instance tracepoint
643	* registration.
644	* @{ */
645	/** The image currently executing its ModuleInit. */
646	PSUPDRVLDRIMAGE volatile pLdrInitImage;
647	/** The thread currently executing a ModuleInit function. */
648	RTNATIVETHREAD volatile hLdrInitThread;
649	/** @} */
650
651	/** Number of times someone reported bad execution context via SUPR0BadContext.
652	* (This is times EFLAGS.AC is zero when we expected it to be 1.) */
653	uint32_t volatile cBadContextCalls;
654
655	/** GIP mutex.
656	* Any changes to any of the GIP members requires ownership of this mutex,
657	* except on driver init and termination. */
658	#ifdef SUPDRV_USE_MUTEX_FOR_GIP
659	RTSEMMUTEX mtxGip;
660	#else
661	RTSEMFASTMUTEX mtxGip;
662	#endif
663	/** GIP spinlock protecting GIP members during Mp events.
664	* This is IRQ safe since be may get MP callbacks in contexts where IRQs are
665	* disabled (on some platforms). */
666	RTSPINLOCK hGipSpinlock;
667	/** Pointer to the Global Info Page (GIP). */
668	PSUPGLOBALINFOPAGE pGip;
669	/** The physical address of the GIP. */
670	RTHCPHYS HCPhysGip;
671	/** Number of processes using the GIP.
672	* (The updates are suspend while cGipUsers is 0.)*/
673	uint32_t volatile cGipUsers;
674	/** The ring-0 memory object handle for the GIP page. */
675	RTR0MEMOBJ GipMemObj;
676	/** The GIP timer handle. */
677	PRTTIMER pGipTimer;
678	/** If non-zero we've successfully called RTTimerRequestSystemGranularity(). */
679	uint32_t u32SystemTimerGranularityGrant;
680	/** The CPU id of the GIP master.
681	* This CPU is responsible for the updating the common GIP data and it is
682	* the one used to calculate TSC deltas relative to.
683	* (The initial master will have a 0 zero value, but it it goes offline the
684	* new master may have a non-zero value.) */
685	RTCPUID volatile idGipMaster;
686
687	/** Component factory mutex.
688	* This protects pComponentFactoryHead and component factory querying. */
689	RTSEMFASTMUTEX mtxComponentFactory;
690	/** The head of the list of registered component factories. */
691	PSUPDRVFACTORYREG pComponentFactoryHead;
692
693	/** Lock protecting The tracer members. */
694	RTSEMFASTMUTEX mtxTracer;
695	/** List of tracer providers (SUPDRVTPPROVIDER). */
696	RTLISTANCHOR TracerProviderList;
697	/** List of zombie tracer providers (SUPDRVTPPROVIDER). */
698	RTLISTANCHOR TracerProviderZombieList;
699	/** Pointer to the tracer registration record. */
700	PCSUPDRVTRACERREG pTracerOps;
701	/** The ring-0 session of a native tracer provider. */
702	PSUPDRVSESSION pTracerSession;
703	/** The image containing the tracer. */
704	PSUPDRVLDRIMAGE pTracerImage;
705	/** The tracer helpers. */
706	SUPDRVTRACERHLP TracerHlp;
707	/** The number of session having opened the tracer currently. */
708	uint32_t cTracerOpens;
709	/** The number of threads currently calling into the tracer. */
710	uint32_t volatile cTracerCallers;
711	/** Set if the tracer is being unloaded. */
712	bool fTracerUnloading;
713	/** Hash table for user tracer modules (SUPDRVVTGCOPY). */
714	RTLISTANCHOR aTrackerUmodHash[128];
715
716	/** @name Session Handle Table.
717	* @{ */
718	/** Spinlock protecting apSessionHashTab, cSessions,
719	* SUPDRVSESSION::ppOsSessionPtr, SUPDRVSESSION::pCommonNextHash, and possibly
720	* others depending on the OS. */
721	RTSPINLOCK hSessionHashTabSpinlock;
722	/** Session hash table hash table. The size of this table must make sense in
723	* comparison to GVMM_MAX_HANDLES. */
724	PSUPDRVSESSION apSessionHashTab[HC_ARCH_BITS == 64 ? 8191 : 127];
725	/** The number of open sessions. */
726	int32_t cSessions;
727	/** @} */
728
729	/** @name Invariant TSC frequency refinement.
730	* @{ */
731	/** Nanosecond timestamp at the start of the TSC frequency refinement phase. */
732	uint64_t nsStartInvarTscRefine;
733	/** TSC reading at the start of the TSC frequency refinement phase. */
734	uint64_t uTscStartInvarTscRefine;
735	/** The CPU id of the CPU that u64TscAnchor was measured on. */
736	RTCPUID idCpuInvarTscRefine;
737	/** Pointer to the timer used to refine the TSC frequency. */
738	PRTTIMER pInvarTscRefineTimer;
739	/** Stop the timer on the next tick because we saw a power event. */
740	bool volatile fInvTscRefinePowerEvent;
741	/** @} */
742
743	/** @name TSC-delta measurement.
744	* @{ */
745	/** Number of online/offline events, incremented each time a CPU goes online
746	* or offline. */
747	uint32_t volatile cMpOnOffEvents;
748	/** TSC-delta measurement mutext.
749	* At the moment, we don't want to have more than one measurement going on at
750	* any one time. We might be using broadcast IPIs which are heavy and could
751	* perhaps get in each others way. */
752	#ifdef SUPDRV_USE_MUTEX_FOR_GIP
753	RTSEMMUTEX mtxTscDelta;
754	#else
755	RTSEMFASTMUTEX mtxTscDelta;
756	#endif
757	/** The set of CPUs we need to take measurements for. */
758	RTCPUSET TscDeltaCpuSet;
759	/** The set of CPUs we have completed taken measurements for. */
760	RTCPUSET TscDeltaObtainedCpuSet;
761	/** @} */
762
763	#ifdef SUPDRV_USE_TSC_DELTA_THREAD
764	/** @name TSC-delta measurement thread.
765	* @{ */
766	/** Spinlock protecting enmTscDeltaThreadState. */
767	RTSPINLOCK hTscDeltaSpinlock;
768	/** TSC-delta measurement thread. */
769	RTTHREAD hTscDeltaThread;
770	/** The event signalled during state changes to the TSC-delta thread. */
771	RTSEMEVENT hTscDeltaEvent;
772	/** The state of the TSC-delta measurement thread. */
773	SUPDRVTSCDELTATHREADSTATE enmTscDeltaThreadState;
774	/** Thread timeout time before rechecking state in ms. */
775	RTMSINTERVAL cMsTscDeltaTimeout;
776	/** Whether the TSC-delta measurement was successful. */
777	int32_t volatile rcTscDelta;
778	/** Tell the thread we want TSC-deltas for all CPUs with retries. */
779	bool fTscThreadRecomputeAllDeltas;
780	/** @} */
781	#endif
782
783	/** @name GIP test mode.
784	* @{ */
785	/** Reference counter for GIP test-mode sessions. */
786	uint32_t cGipTestModeRefs;
787	/** Cache of TSC frequency before enabling test-mode on invariant GIP systems. */
788	uint64_t uGipTestModeInvariantCpuHz;
789	/** @} */
790
791	/*
792	* Note! The non-agnostic bits must be at the very end of the structure!
793	*/
794	#ifndef SUPDRV_AGNOSTIC
795	# ifdef RT_OS_WINDOWS
796	/** Callback object returned by ExCreateCallback. */
797	PCALLBACK_OBJECT pObjPowerCallback;
798	/** Callback handle returned by ExRegisterCallback. */
799	PVOID hPowerCallback;
800	# elif defined(RT_OS_DARWIN) && defined(VBOX_WITH_DARWIN_R0_DARWIN_IMAGE_VERIFICATION)
801	/** Trusted root certificates for code signing validation. */
802	RTCRSTORE hRootStore;
803	/** Intermedite certificates for code signing validation. */
804	RTCRSTORE hAdditionalStore;
805	# endif
806	#endif
807	} SUPDRVDEVEXT;
808
809	/** Calculates the index into g_apSessionHashTab.*/
810	#define SUPDRV_SESSION_HASH(a_pid) ( (a_pid) % RT_ELEMENTS(((SUPDRVDEVEXT *)NULL)->apSessionHashTab) )
811
812
813	RT_C_DECLS_BEGIN
814
815	/*******************************************************************************
816	* OS Specific Functions *
817	*******************************************************************************/
818	/**
819	* Called to clean up the session structure before it's freed.
820	*
821	* @param pDevExt The device globals.
822	* @param pSession The session that's being cleaned up.
823	*/
824	void VBOXCALL supdrvOSCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
825
826	/**
827	* Called to let the OS specfic code perform additional insertion work while
828	* still under the protection of the hash table spinlock.
829	*
830	* @param pDevExt The device globals.
831	* @param pSession The session that was inserted.
832	* @param pvUser User context specified to the insert call.
833	*/
834	void VBOXCALL supdrvOSSessionHashTabInserted(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, void *pvUser);
835
836	/**
837	* Called to let the OS specfic code perform additional removal work while still
838	* under the protection of the hash table spinlock.
839	*
840	* @param pDevExt The device globals.
841	* @param pSession The session that was removed.
842	* @param pvUser User context specified to the remove call.
843	*/
844	void VBOXCALL supdrvOSSessionHashTabRemoved(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, void *pvUser);
845
846	/**
847	* Called during GIP initializtion to calc the CPU group table size.
848	*
849	* This is currently only implemented on windows [lazy bird].
850	*
851	* @returns Number of bytes needed for SUPGIPCPUGROUP structures.
852	* @param pDevExt The device globals.
853	*/
854	size_t VBOXCALL supdrvOSGipGetGroupTableSize(PSUPDRVDEVEXT pDevExt);
855
856	/**
857	* Called during GIP initialization to set up the group table and group count.
858	*
859	* This is currently only implemented on windows [lazy bird].
860	*
861	* @param pDevExt The device globals.
862	* @param pGip The GIP which group table needs initialization.
863	* It's only partially initialized at this point.
864	* @param cbGipCpuGroups What supdrvOSGipGetGroupTableSize returned.
865	*/
866	int VBOXCALL supdrvOSInitGipGroupTable(PSUPDRVDEVEXT pDevExt, PSUPGLOBALINFOPAGE pGip, size_t cbGipCpuGroups);
867
868	/**
869	* Initializes the group related members when a CPU is added to the GIP.
870	*
871	* This is called both during GIP initalization and during an CPU online event.
872	*
873	* This is currently only implemented on windows [lazy bird].
874	*
875	* @returns CPU group number.
876	* @param pDevExt The device globals.
877	* @param pGip The GIP.
878	* @param pGipCpu The GIP CPU structure being initialized.
879	*/
880	void VBOXCALL supdrvOSGipInitGroupBitsForCpu(PSUPDRVDEVEXT pDevExt, PSUPGLOBALINFOPAGE pGip, PSUPGIPCPU pGipCpu);
881
882	void VBOXCALL supdrvOSObjInitCreator(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession);
883	bool VBOXCALL supdrvOSObjCanAccess(PSUPDRVOBJ pObj, PSUPDRVSESSION pSession, const char pszObjName, int prc);
884	bool VBOXCALL supdrvOSGetForcedAsyncTscMode(PSUPDRVDEVEXT pDevExt);
885	bool VBOXCALL supdrvOSAreCpusOfflinedOnSuspend(void);
886	bool VBOXCALL supdrvOSAreTscDeltasInSync(void);
887	int VBOXCALL supdrvOSEnableVTx(bool fEnabled);
888	RTCCUINTREG VBOXCALL supdrvOSChangeCR4(RTCCUINTREG fOrMask, RTCCUINTREG fAndMask);
889	bool VBOXCALL supdrvOSSuspendVTxOnCpu(void);
890	void VBOXCALL supdrvOSResumeVTxOnCpu(bool fSuspended);
891	int VBOXCALL supdrvOSGetCurrentGdtRw(RTHCUINTPTR *pGdtRw);
892	int VBOXCALL supdrvOSGetRawModeUsability(void);
893
894	/**
895	* Try open the image using the native loader.
896	*
897	* @returns IPRT status code.
898	* @retval VERR_NOT_SUPPORTED if native loading isn't supported.
899	*
900	* @param pDevExt The device globals.
901	* @param pImage The image handle. pvImage should be set on
902	* success, pvImageAlloc can also be set if
903	* appropriate.
904	* @param pszFilename The file name - UTF-8, may containing UNIX
905	* slashes on non-UNIX systems.
906	*/
907	int VBOXCALL supdrvOSLdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const char *pszFilename);
908
909	/**
910	* Notification call indicating that a image is being opened for the first time.
911	*
912	* Called for both native and non-native images (after supdrvOSLdrOpen). Can be
913	* used to log the load address of the image or inform the kernel about the
914	* alien image.
915	*
916	* @param pDevExt The device globals.
917	* @param pImage The image handle.
918	* @param pszFilename The file name - UTF-8, may containing UNIX
919	* slashes on non-UNIX systems.
920	*/
921	void VBOXCALL supdrvOSLdrNotifyOpened(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const char *pszFilename);
922
923	/**
924	* Validates an entry point address.
925	*
926	* Called before supdrvOSLdrLoad.
927	*
928	* @returns IPRT status code.
929	* @param pDevExt The device globals.
930	* @param pImage The image data (still in the open state).
931	* @param pv The address within the image.
932	* @param pbImageBits The image bits as loaded by ring-3.
933	* @param pszSymbol The name of the entrypoint being checked.
934	*/
935	int VBOXCALL supdrvOSLdrValidatePointer(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage,
936	void pv, const uint8_t pbImageBits, const char *pszSymbol);
937
938	/**
939	* Load the image.
940	*
941	* @returns IPRT status code.
942	* @param pDevExt The device globals.
943	* @param pImage The image data (up to date). Adjust entrypoints
944	* and exports if necessary.
945	* @param pbImageBits The image bits as loaded by ring-3.
946	* @param pReq Pointer to the request packet so that the VMMR0
947	* entry points can be adjusted.
948	*/
949	int VBOXCALL supdrvOSLdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage, const uint8_t *pbImageBits, PSUPLDRLOAD pReq);
950
951	/**
952	* Unload the image (only called if supdrvOSLdrOpen returned success).
953	*
954	* @param pDevExt The device globals.
955	* @param pImage The image data (mostly still valid).
956	*/
957	void VBOXCALL supdrvOSLdrUnload(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
958
959	/**
960	* Notification call indicating that a image is being unloaded.
961	*
962	* Called for both native and non-native images. In the former case, it's
963	* called after supdrvOSLdrUnload.
964	*
965	* @param pDevExt The device globals.
966	* @param pImage The image handle.
967	*/
968	void VBOXCALL supdrvOSLdrNotifyUnloaded(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
969
970	/**
971	* Queries a symbol address is a native module.
972	*
973	* @returns IPRT status code.
974	* @param pDevExt The device globals.
975	* @param pImage The image to search.
976	* @param pszSymbol The symbol to search for.
977	* @param cchSymbol The length of the symbol.
978	* @param ppvSymbol Where to return the symbol address if found.
979	*/
980	int VBOXCALL supdrvOSLdrQuerySymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage,
981	const char pszSymbol, size_t cchSymbol, void *ppvSymbol);
982
983
984	#ifdef SUPDRV_WITH_MSR_PROBER
985
986	/**
987	* Tries to read an MSR.
988	*
989	* @returns One of the listed VBox status codes.
990	* @retval VINF_SUCCESS if read successfully, value in *puValue.
991	* @retval VERR_ACCESS_DENIED if we couldn't read it (GP).
992	* @retval VERR_NOT_SUPPORTED if not supported.
993	*
994	* @param uMsr The MSR to read from.
995	* @param idCpu The CPU to read the MSR on. NIL_RTCPUID
996	* indicates any suitable CPU.
997	* @param puValue Where to return the value.
998	*/
999	int VBOXCALL supdrvOSMsrProberRead(uint32_t uMsr, RTCPUID idCpu, uint64_t *puValue);
1000
1001	/**
1002	* Tries to write an MSR.
1003	*
1004	* @returns One of the listed VBox status codes.
1005	* @retval VINF_SUCCESS if written successfully.
1006	* @retval VERR_ACCESS_DENIED if we couldn't write the value to it (GP).
1007	* @retval VERR_NOT_SUPPORTED if not supported.
1008	*
1009	* @param uMsr The MSR to write to.
1010	* @param idCpu The CPU to write the MSR on. NIL_RTCPUID
1011	* indicates any suitable CPU.
1012	* @param uValue The value to write.
1013	*/
1014	int VBOXCALL supdrvOSMsrProberWrite(uint32_t uMsr, RTCPUID idCpu, uint64_t uValue);
1015
1016	/**
1017	* Tries to modify an MSR value.
1018	*
1019	* @returns One of the listed VBox status codes.
1020	* @retval VINF_SUCCESS if succeeded.
1021	* @retval VERR_NOT_SUPPORTED if not supported.
1022	*
1023	* @param idCpu The CPU to modify the MSR on. NIL_RTCPUID
1024	* indicates any suitable CPU.
1025	* @param pReq The request packet with input arguments and
1026	* where to store the results.
1027	*/
1028	int VBOXCALL supdrvOSMsrProberModify(RTCPUID idCpu, PSUPMSRPROBER pReq);
1029
1030	#endif /* SUPDRV_WITH_MSR_PROBER */
1031
1032	#if defined(RT_OS_DARWIN)
1033	int VBOXCALL supdrvDarwinResumeSuspendedKbds(void);
1034	#endif
1035
1036	/*******************************************************************************
1037	* Shared Functions *
1038	*******************************************************************************/
1039	/* SUPDrv.c */
1040	int VBOXCALL supdrvIOCtl(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr, size_t cbReq);
1041	int VBOXCALL supdrvIOCtlFast(uintptr_t uOperation, VMCPUID idCpu, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
1042	int VBOXCALL supdrvIDC(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQHDR pReqHdr);
1043	int VBOXCALL supdrvInitDevExt(PSUPDRVDEVEXT pDevExt, size_t cbSession);
1044	void VBOXCALL supdrvDeleteDevExt(PSUPDRVDEVEXT pDevExt);
1045	int VBOXCALL supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, bool fUnrestricted, PSUPDRVSESSION *ppSession);
1046	int VBOXCALL supdrvSessionHashTabInsert(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVSESSION ppOsSessionPtr, void pvUser);
1047	int VBOXCALL supdrvSessionHashTabRemove(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, void *pvUser);
1048	PSUPDRVSESSION VBOXCALL supdrvSessionHashTabLookup(PSUPDRVDEVEXT pDevExt, RTPROCESS Process, RTR0PROCESS R0Process,
1049	PSUPDRVSESSION *ppOsSessionPtr);
1050	uint32_t VBOXCALL supdrvSessionRetain(PSUPDRVSESSION pSession);
1051	uint32_t VBOXCALL supdrvSessionRelease(PSUPDRVSESSION pSession);
1052	void VBOXCALL supdrvBadContext(PSUPDRVDEVEXT pDevExt, const char pszFile, uint32_t uLine, const char pszExtra);
1053	int VBOXCALL supdrvQueryVTCapsInternal(uint32_t *pfCaps);
1054	int VBOXCALL supdrvLdrLoadError(int rc, PSUPLDRLOAD pReq, const char *pszFormat, ...);
1055	int VBOXCALL supdrvLdrGetExportedSymbol(const char pszSymbol, uintptr_t puValue);
1056
1057	/* SUPDrvGip.cpp */
1058	int VBOXCALL supdrvGipCreate(PSUPDRVDEVEXT pDevExt);
1059	void VBOXCALL supdrvGipDestroy(PSUPDRVDEVEXT pDevExt);
1060	int VBOXCALL supdrvIOCtl_TscDeltaMeasure(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPTSCDELTAMEASURE pReq);
1061	int VBOXCALL supdrvIOCtl_TscRead(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPTSCREAD pReq);
1062	int VBOXCALL supdrvIOCtl_GipSetFlags(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, uint32_t fOrMask, uint32_t fAndMask);
1063
1064
1065	/* SUPDrvTracer.cpp */
1066	int VBOXCALL supdrvTracerInit(PSUPDRVDEVEXT pDevExt);
1067	void VBOXCALL supdrvTracerTerm(PSUPDRVDEVEXT pDevExt);
1068	void VBOXCALL supdrvTracerModuleUnloading(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
1069	void VBOXCALL supdrvTracerCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
1070	int VBOXCALL supdrvIOCtl_TracerUmodRegister(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession,
1071	RTR3PTR R3PtrVtgHdr, RTUINTPTR uVtgHdrAddr,
1072	RTR3PTR R3PtrStrTab, uint32_t cbStrTab,
1073	const char *pszModName, uint32_t fFlags);
1074	int VBOXCALL supdrvIOCtl_TracerUmodDeregister(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, RTR3PTR R3PtrVtgHdr);
1075	void VBOXCALL supdrvIOCtl_TracerUmodProbeFire(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVTRACERUSRCTX pCtx);
1076	int VBOXCALL supdrvIOCtl_TracerOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, uint32_t uCookie, uintptr_t uArg);
1077	int VBOXCALL supdrvIOCtl_TracerClose(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
1078	int VBOXCALL supdrvIOCtl_TracerIOCtl(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal);
1079	extern PFNRT g_pfnSupdrvProbeFireKernel;
1080	DECLASM(void) supdrvTracerProbeFireStub(void);
1081
1082	#ifdef VBOX_WITH_NATIVE_DTRACE
1083	const SUPDRVTRACERREG * VBOXCALL supdrvDTraceInit(void);
1084	#endif
1085
1086	RT_C_DECLS_END
1087
1088	#endif /* !VBOX_INCLUDED_SRC_Support_SUPDrvInternal_h */
1089

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source: vbox/trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h@ 78177

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