sup.h@ 71586

Last change on this file since 71586 was 71198, checked in by vboxsync, 7 years ago
SUPDrv,VMMR0: Prepped for extending the fast I/O control interface a bit for NEM; SUPDRV version increment. bugref:9044
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1	/** @file
2	* SUP - Support Library. (HDrv)
3	*/
4
5	/*
6	* Copyright (C) 2006-2017 Oracle Corporation
7	*
8	* This file is part of VirtualBox Open Source Edition (OSE), as
9	* available from http://www.virtualbox.org. This file is free software;
10	* you can redistribute it and/or modify it under the terms of the GNU
11	* General Public License (GPL) as published by the Free Software
12	* Foundation, in version 2 as it comes in the "COPYING" file of the
13	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15	*
16	* The contents of this file may alternatively be used under the terms
17	* of the Common Development and Distribution License Version 1.0
18	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19	* VirtualBox OSE distribution, in which case the provisions of the
20	* CDDL are applicable instead of those of the GPL.
21	*
22	* You may elect to license modified versions of this file under the
23	* terms and conditions of either the GPL or the CDDL or both.
24	*/
25
26	#ifndef ___VBox_sup_h
27	#define ___VBox_sup_h
28
29	#include <VBox/cdefs.h>
30	#include <VBox/types.h>
31	#include <VBox/err.h>
32	#include <iprt/assert.h>
33	#include <iprt/stdarg.h>
34	#include <iprt/cpuset.h>
35	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
36	# include <iprt/asm-amd64-x86.h>
37	#endif
38
39	RT_C_DECLS_BEGIN
40
41	struct VTGOBJHDR;
42	struct VTGPROBELOC;
43
44
45	/** @defgroup grp_sup The Support Library API
46	* @{
47	*/
48
49	/**
50	* Physical page descriptor.
51	*/
52	#pragma pack(4) /* space is more important. */
53	typedef struct SUPPAGE
54	{
55	/** Physical memory address. */
56	RTHCPHYS Phys;
57	/** Reserved entry for internal use by the caller. */
58	RTHCUINTPTR uReserved;
59	} SUPPAGE;
60	#pragma pack()
61	/** Pointer to a page descriptor. */
62	typedef SUPPAGE *PSUPPAGE;
63	/** Pointer to a const page descriptor. */
64	typedef const SUPPAGE *PCSUPPAGE;
65
66	/**
67	* The paging mode.
68	*
69	* @remarks Users are making assumptions about the order here!
70	*/
71	typedef enum SUPPAGINGMODE
72	{
73	/** The usual invalid entry.
74	* This is returned by SUPR3GetPagingMode() */
75	SUPPAGINGMODE_INVALID = 0,
76	/** Normal 32-bit paging, no global pages */
77	SUPPAGINGMODE_32_BIT,
78	/** Normal 32-bit paging with global pages. */
79	SUPPAGINGMODE_32_BIT_GLOBAL,
80	/** PAE mode, no global pages, no NX. */
81	SUPPAGINGMODE_PAE,
82	/** PAE mode with global pages. */
83	SUPPAGINGMODE_PAE_GLOBAL,
84	/** PAE mode with NX, no global pages. */
85	SUPPAGINGMODE_PAE_NX,
86	/** PAE mode with global pages and NX. */
87	SUPPAGINGMODE_PAE_GLOBAL_NX,
88	/** AMD64 mode, no global pages. */
89	SUPPAGINGMODE_AMD64,
90	/** AMD64 mode with global pages, no NX. */
91	SUPPAGINGMODE_AMD64_GLOBAL,
92	/** AMD64 mode with NX, no global pages. */
93	SUPPAGINGMODE_AMD64_NX,
94	/** AMD64 mode with global pages and NX. */
95	SUPPAGINGMODE_AMD64_GLOBAL_NX
96	} SUPPAGINGMODE;
97
98
99	/** @name Flags returned by SUPR0GetKernelFeatures().
100	* @{
101	*/
102	/** GDT is read-only. */
103	#define SUPKERNELFEATURES_GDT_READ_ONLY RT_BIT(0)
104	/** SMAP is possibly enabled. */
105	#define SUPKERNELFEATURES_SMAP RT_BIT(1)
106	/** GDT is read-only but the writable GDT can be fetched by SUPR0GetCurrentGdtRw(). */
107	#define SUPKERNELFEATURES_GDT_NEED_WRITABLE RT_BIT(2)
108	/** @} */
109
110
111	/**
112	* Usermode probe context information.
113	*/
114	typedef struct SUPDRVTRACERUSRCTX
115	{
116	/** The probe ID from the VTG location record. */
117	uint32_t idProbe;
118	/** 32 if X86, 64 if AMD64. */
119	uint8_t cBits;
120	/** Reserved padding. */
121	uint8_t abReserved[3];
122	/** Data which format is dictated by the cBits member. */
123	union
124	{
125	/** X86 context info. */
126	struct
127	{
128	uint32_t uVtgProbeLoc; /*< Location record address. /
129	uint32_t aArgs[20]; /*< Raw arguments. /
130	uint32_t eip;
131	uint32_t eflags;
132	uint32_t eax;
133	uint32_t ecx;
134	uint32_t edx;
135	uint32_t ebx;
136	uint32_t esp;
137	uint32_t ebp;
138	uint32_t esi;
139	uint32_t edi;
140	uint16_t cs;
141	uint16_t ss;
142	uint16_t ds;
143	uint16_t es;
144	uint16_t fs;
145	uint16_t gs;
146	} X86;
147
148	/** AMD64 context info. */
149	struct
150	{
151	uint64_t uVtgProbeLoc; /*< Location record address. /
152	uint64_t aArgs[10]; /*< Raw arguments. /
153	uint64_t rip;
154	uint64_t rflags;
155	uint64_t rax;
156	uint64_t rcx;
157	uint64_t rdx;
158	uint64_t rbx;
159	uint64_t rsp;
160	uint64_t rbp;
161	uint64_t rsi;
162	uint64_t rdi;
163	uint64_t r8;
164	uint64_t r9;
165	uint64_t r10;
166	uint64_t r11;
167	uint64_t r12;
168	uint64_t r13;
169	uint64_t r14;
170	uint64_t r15;
171	} Amd64;
172	} u;
173	} SUPDRVTRACERUSRCTX;
174	/** Pointer to the usermode probe context information. */
175	typedef SUPDRVTRACERUSRCTX *PSUPDRVTRACERUSRCTX;
176	/** Pointer to the const usermode probe context information. */
177	typedef SUPDRVTRACERUSRCTX const *PCSUPDRVTRACERUSRCTX;
178
179	/**
180	* The result of a modification operation (SUPMSRPROBEROP_MODIFY or
181	* SUPMSRPROBEROP_MODIFY_FASTER).
182	*/
183	typedef struct SUPMSRPROBERMODIFYRESULT
184	{
185	/** The MSR value prior to the modifications. Valid if fBeforeGp is false */
186	uint64_t uBefore;
187	/** The value that was written. Valid if fBeforeGp is false */
188	uint64_t uWritten;
189	/** The MSR value after the modifications. Valid if AfterGp is false. */
190	uint64_t uAfter;
191	/** Set if we GPed reading the MSR before the modification. */
192	bool fBeforeGp;
193	/** Set if we GPed while trying to write the modified value.
194	* This is set when fBeforeGp is true. */
195	bool fModifyGp;
196	/** Set if we GPed while trying to read the MSR after the modification.
197	* This is set when fBeforeGp is true. */
198	bool fAfterGp;
199	/** Set if we GPed while trying to restore the MSR after the modification.
200	* This is set when fBeforeGp is true. */
201	bool fRestoreGp;
202	/** Structure size alignment padding. */
203	bool afReserved[4];
204	} SUPMSRPROBERMODIFYRESULT, *PSUPMSRPROBERMODIFYRESULT;
205
206
207	/**
208	* The CPU state.
209	*/
210	typedef enum SUPGIPCPUSTATE
211	{
212	/** Invalid CPU state / unused CPU entry. */
213	SUPGIPCPUSTATE_INVALID = 0,
214	/** The CPU is not present. */
215	SUPGIPCPUSTATE_ABSENT,
216	/** The CPU is offline. */
217	SUPGIPCPUSTATE_OFFLINE,
218	/** The CPU is online. */
219	SUPGIPCPUSTATE_ONLINE,
220	/** Force 32-bit enum type. */
221	SUPGIPCPUSTATE_32_BIT_HACK = 0x7fffffff
222	} SUPGIPCPUSTATE;
223
224	/**
225	* Per CPU data.
226	*/
227	typedef struct SUPGIPCPU
228	{
229	/** Update transaction number.
230	* This number is incremented at the start and end of each update. It follows
231	* thusly that odd numbers indicates update in progress, while even numbers
232	* indicate stable data. Use this to make sure that the data items you fetch
233	* are consistent. */
234	volatile uint32_t u32TransactionId;
235	/** The interval in TSC ticks between two NanoTS updates.
236	* This is the average interval over the last 2, 4 or 8 updates + a little slack.
237	* The slack makes the time go a tiny tiny bit slower and extends the interval enough
238	* to avoid ending up with too many 1ns increments. */
239	volatile uint32_t u32UpdateIntervalTSC;
240	/** Current nanosecond timestamp. */
241	volatile uint64_t u64NanoTS;
242	/** The TSC at the time of u64NanoTS. */
243	volatile uint64_t u64TSC;
244	/** Current CPU Frequency. */
245	volatile uint64_t u64CpuHz;
246	/** The TSC delta with reference to the master TSC, subtract from RDTSC. */
247	volatile int64_t i64TSCDelta;
248	/** Number of errors during updating.
249	* Typical errors are under/overflows. */
250	volatile uint32_t cErrors;
251	/** Index of the head item in au32TSCHistory. */
252	volatile uint32_t iTSCHistoryHead;
253	/** Array of recent TSC interval deltas.
254	* The most recent item is at index iTSCHistoryHead.
255	* This history is used to calculate u32UpdateIntervalTSC.
256	*/
257	volatile uint32_t au32TSCHistory[8];
258	/** The interval between the last two NanoTS updates. (experiment for now) */
259	volatile uint32_t u32PrevUpdateIntervalNS;
260
261	/** Reserved for future per processor data. */
262	volatile uint32_t u32Reserved;
263	/** The TSC value read while doing TSC delta measurements across CPUs. */
264	volatile uint64_t u64TSCSample;
265	/** Reserved for future per processor data. */
266	volatile uint32_t au32Reserved1[3];
267
268	/** The CPU state. */
269	SUPGIPCPUSTATE volatile enmState;
270	/** The host CPU ID of this CPU (the SUPGIPCPU is indexed by APIC ID). */
271	RTCPUID idCpu;
272	/** The CPU set index of this CPU. */
273	int16_t iCpuSet;
274	/** CPU group number (always zero, except on windows). */
275	uint16_t iCpuGroup;
276	/** CPU group member number (same as iCpuSet, except on windows). */
277	uint16_t iCpuGroupMember;
278	/** The APIC ID of this CPU. */
279	uint16_t idApic;
280	/** @todo Add topology/NUMA info. */
281	uint32_t iReservedForNumaNode;
282	} SUPGIPCPU;
283	AssertCompileSize(RTCPUID, 4);
284	AssertCompileSize(SUPGIPCPU, 128);
285	AssertCompileMemberAlignment(SUPGIPCPU, u64NanoTS, 8);
286	AssertCompileMemberAlignment(SUPGIPCPU, u64TSC, 8);
287	AssertCompileMemberAlignment(SUPGIPCPU, u64TSCSample, 8);
288
289	/** Pointer to per cpu data.
290	* @remark there is no const version of this typedef, see g_pSUPGlobalInfoPage for details. */
291	typedef SUPGIPCPU *PSUPGIPCPU;
292
293	/**
294	* CPU group information.
295	* @remarks Windows only.
296	*/
297	typedef struct SUPGIPCPUGROUP
298	{
299	/** Current number of CPUs in this group. */
300	uint16_t volatile cMembers;
301	/** Maximum number of CPUs in the group. */
302	uint16_t cMaxMembers;
303	/** The CPU set index of the members. This table has cMaxMembers entries.
304	* @note For various reasons, entries from cMembers and up to cMaxMembers are
305	* may change as the host OS does set dynamic assignments during CPU
306	* hotplugging. */
307	int16_t aiCpuSetIdxs[1];
308	} SUPGIPCPUGROUP;
309	/** Pointer to a GIP CPU group structure. */
310	typedef SUPGIPCPUGROUP *PSUPGIPCPUGROUP;
311	/** Pointer to a const GIP CPU group structure. */
312	typedef SUPGIPCPUGROUP const *PCSUPGIPCPUGROUP;
313
314	/**
315	* The rules concerning the applicability of SUPGIPCPU::i64TscDelta.
316	*/
317	typedef enum SUPGIPUSETSCDELTA
318	{
319	/** Value for SUPGIPMODE_ASYNC_TSC. */
320	SUPGIPUSETSCDELTA_NOT_APPLICABLE = 0,
321	/** The OS specific part of SUPDrv (or the user) claims the TSC is as
322	* good as zero. */
323	SUPGIPUSETSCDELTA_ZERO_CLAIMED,
324	/** The differences in RDTSC output between the CPUs/cores/threads should
325	* be considered zero for all practical purposes. */
326	SUPGIPUSETSCDELTA_PRACTICALLY_ZERO,
327	/** The differences in RDTSC output between the CPUs/cores/threads are a few
328	* hundred ticks or less. (Probably not worth calling ASMGetApicId two times
329	* just to apply deltas.) */
330	SUPGIPUSETSCDELTA_ROUGHLY_ZERO,
331	/** Significant differences in RDTSC output between the CPUs/cores/threads,
332	* deltas must be applied. */
333	SUPGIPUSETSCDELTA_NOT_ZERO,
334	/** End of valid values (exclusive). */
335	SUPGIPUSETSCDELTA_END,
336	/** Make sure the type is 32-bit sized. */
337	SUPGIPUSETSCDELTA_32BIT_HACK = 0x7fffffff
338	} SUPGIPUSETSCDELTA;
339
340
341	/** @name SUPGIPGETCPU_XXX - methods that aCPUs can be indexed.
342	*
343	* @note Linux offers information via selector 0x78, and Windows via selector
344	* 0x53. But since they both support RDTSCP as well, and because most
345	* CPUs now have RDTSCP, we prefer it over LSL. We can implement more
346	* alternatives if it becomes necessary.
347	*
348	* @{
349	*/
350	/** Use ASMGetApicId (or equivalent) and translate the result via
351	* aiCpuFromApicId. */
352	#define SUPGIPGETCPU_APIC_ID RT_BIT_32(0)
353	/** Use RDTSCP and translate the first RTCPUSET_MAX_CPUS of ECX via
354	* aiCpuFromCpuSetIdx.
355	*
356	* Linux stores the RTMpCpuId() value in ECX[11:0] and NUMA node number in
357	* ECX[12:31]. Solaris only stores RTMpCpuId() in ECX. On both systems
358	* RTMpCpuId() == RTMpCpuIdToSetIndex(RTMpCpuId()). RTCPUSET_MAX_CPUS is
359	* currently 64, 256 or 1024 in size, which lower than
360	* 4096, so there shouldn't be any range issues. */
361	#define SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS RT_BIT_32(1)
362	/** Subtract the max IDT size from IDTR.LIMIT, extract the
363	* first RTCPUSET_MAX_CPUS and translate it via aiCpuFromCpuSetIdx.
364	*
365	* Darwin stores the RTMpCpuId() (== RTMpCpuIdToSetIndex(RTMpCpuId()))
366	* value in the IDT limit. The masking is a precaution against what linux
367	* does with RDTSCP. */
368	#define SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS RT_BIT_32(2)
369	/** Windows specific RDTSCP variant, where CH gives you the group and CL gives
370	* you the CPU number within that group.
371	*
372	* Use SUPGLOBALINFOPAGE::aidFirstCpuFromCpuGroup to get the group base CPU set
373	* index, then translate the sum of thru aiCpuFromCpuSetIdx to find the aCPUs
374	* entry.
375	*
376	* @note The group number is actually 16-bit wide (ECX[23:8]), but we simplify
377	* it since we only support 256 CPUs/groups at the moment.
378	*/
379	#define SUPGIPGETCPU_RDTSCP_GROUP_IN_CH_NUMBER_IN_CL RT_BIT_32(3)
380	/** @} */
381
382	/** @def SUPGIP_MAX_CPU_GROUPS
383	* Maximum number of CPU groups. */
384	#if RTCPUSET_MAX_CPUS >= 256
385	# define SUPGIP_MAX_CPU_GROUPS 256
386	#else
387	# define SUPGIP_MAX_CPU_GROUPS RTCPUSET_MAX_CPUS
388	#endif
389
390	/**
391	* Global Information Page.
392	*
393	* This page contains useful information and can be mapped into any
394	* process or VM. It can be accessed thru the g_pSUPGlobalInfoPage
395	* pointer when a session is open.
396	*/
397	typedef struct SUPGLOBALINFOPAGE
398	{
399	/** Magic (SUPGLOBALINFOPAGE_MAGIC). */
400	uint32_t u32Magic;
401	/** The GIP version. */
402	uint32_t u32Version;
403
404	/** The GIP update mode, see SUPGIPMODE. */
405	uint32_t u32Mode;
406	/** The number of entries in the CPU table.
407	* (This can work as RTMpGetArraySize().) */
408	uint16_t cCpus;
409	/** The size of the GIP in pages. */
410	uint16_t cPages;
411	/** The update frequency of the of the NanoTS. */
412	volatile uint32_t u32UpdateHz;
413	/** The update interval in nanoseconds. (10^9 / u32UpdateHz) */
414	volatile uint32_t u32UpdateIntervalNS;
415	/** The timestamp of the last time we update the update frequency. */
416	volatile uint64_t u64NanoTSLastUpdateHz;
417	/** The TSC frequency of the system. */
418	uint64_t u64CpuHz;
419	/** The set of online CPUs. */
420	RTCPUSET OnlineCpuSet;
421	/** The set of present CPUs. */
422	RTCPUSET PresentCpuSet;
423	/** The set of possible CPUs. */
424	RTCPUSET PossibleCpuSet;
425	/** The number of CPUs that are online. */
426	volatile uint16_t cOnlineCpus;
427	/** The number of CPUs present in the system. */
428	volatile uint16_t cPresentCpus;
429	/** The highest number of CPUs possible. */
430	uint16_t cPossibleCpus;
431	/** The highest number of CPU groups possible. */
432	uint16_t cPossibleCpuGroups;
433	/** The max CPU ID (RTMpGetMaxCpuId). */
434	RTCPUID idCpuMax;
435	/** The applicability of SUPGIPCPU::i64TscDelta. */
436	SUPGIPUSETSCDELTA enmUseTscDelta;
437	/** Mask of SUPGIPGETCPU_XXX values that indicates different ways that aCPU
438	* can be accessed from ring-3 and raw-mode context. */
439	uint32_t fGetGipCpu;
440	/** GIP flags, see SUPGIP_FLAGS_XXX. */
441	volatile uint32_t fFlags;
442
443	/** Padding / reserved space for future data. */
444	uint32_t au32Padding1[24];
445
446	/** Table indexed by the CPU APIC ID to get the CPU table index. */
447	uint16_t aiCpuFromApicId[256];
448	/** CPU set index to CPU table index. */
449	uint16_t aiCpuFromCpuSetIdx[RTCPUSET_MAX_CPUS];
450	/** Table indexed by CPU group to containing offsets to SUPGIPCPUGROUP
451	* structures, invalid entries are set to UINT16_MAX. The offsets are relative
452	* to the start of this structure.
453	* @note Windows only. The other hosts sets all entries to UINT16_MAX! */
454	uint16_t aoffCpuGroup[SUPGIP_MAX_CPU_GROUPS];
455
456	/** Array of per-cpu data.
457	* This is index by ApicId via the aiCpuFromApicId table.
458	*
459	* The clock and frequency information is updated for all CPUs if @c u32Mode
460	* is SUPGIPMODE_ASYNC_TSC. If @c u32Mode is SUPGIPMODE_SYNC_TSC only the first
461	* entry is updated. If @c u32Mode is SUPGIPMODE_SYNC_TSC the TSC frequency in
462	* @c u64CpuHz is copied to all CPUs. */
463	SUPGIPCPU aCPUs[1];
464	} SUPGLOBALINFOPAGE;
465	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, u64NanoTSLastUpdateHz, 8);
466	#if defined(RT_ARCH_SPARC) \|\| defined(RT_ARCH_SPARC64)
467	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 32);
468	#else
469	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 256);
470	#endif
471	AssertCompile(sizeof(SUPGLOBALINFOPAGE) <= 0x1000); /* Keeping it less or equal to a page for raw-mode (saved state). */
472
473	/** Pointer to the global info page.
474	* @remark there is no const version of this typedef, see g_pSUPGlobalInfoPage for details. */
475	typedef SUPGLOBALINFOPAGE *PSUPGLOBALINFOPAGE;
476
477
478	/** The value of the SUPGLOBALINFOPAGE::u32Magic field. (Soryo Fuyumi) */
479	#define SUPGLOBALINFOPAGE_MAGIC 0x19590106
480	/** The GIP version.
481	* Upper 16 bits is the major version. Major version is only changed with
482	* incompatible changes in the GIP. */
483	#define SUPGLOBALINFOPAGE_VERSION 0x00080000
484
485	/**
486	* SUPGLOBALINFOPAGE::u32Mode values.
487	*/
488	typedef enum SUPGIPMODE
489	{
490	/** The usual invalid null entry. */
491	SUPGIPMODE_INVALID = 0,
492	/** The TSC of the cores and cpus in the system is in sync. */
493	SUPGIPMODE_SYNC_TSC,
494	/** Each core has it's own TSC. */
495	SUPGIPMODE_ASYNC_TSC,
496	/** The TSC of the cores are non-stop and have a constant frequency. */
497	SUPGIPMODE_INVARIANT_TSC,
498	/** End of valid GIP mode values (exclusive). */
499	SUPGIPMODE_END,
500	/** The usual 32-bit hack. */
501	SUPGIPMODE_32BIT_HACK = 0x7fffffff
502	} SUPGIPMODE;
503
504	/** Pointer to the Global Information Page.
505	*
506	* This pointer is valid as long as SUPLib has a open session. Anyone using
507	* the page must treat this pointer as highly volatile and not trust it beyond
508	* one transaction.
509	*
510	* @remark The GIP page is read-only to everyone but the support driver and
511	* is actually mapped read only everywhere but in ring-0. However
512	* it is not marked 'const' as this might confuse compilers into
513	* thinking that values doesn't change even if members are marked
514	* as volatile. Thus, there is no PCSUPGLOBALINFOPAGE type.
515	*/
516	#if defined(IN_SUP_R3) \|\| defined(IN_SUP_R0)
517	extern DECLEXPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
518
519	#elif !defined(IN_RING0) \|\| defined(RT_OS_WINDOWS) \|\| defined(RT_OS_SOLARIS)
520	extern DECLIMPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
521
522	#else /* IN_RING0 && !RT_OS_WINDOWS */
523	# if !defined(__GNUC__) \|\| defined(RT_OS_DARWIN) \|\| !defined(RT_ARCH_AMD64)
524	# define g_pSUPGlobalInfoPage (&g_SUPGlobalInfoPage)
525	# else
526	# define g_pSUPGlobalInfoPage (SUPGetGIPHlp())
527	/** Workaround for ELF+GCC problem on 64-bit hosts.
528	* (GCC emits a mov with a R_X86_64_32 reloc, we need R_X86_64_64.) */
529	DECLINLINE(PSUPGLOBALINFOPAGE) SUPGetGIPHlp(void)
530	{
531	PSUPGLOBALINFOPAGE pGIP;
532	__asm__ __volatile__ ("movabs $g_SUPGlobalInfoPage,%0\n\t"
533	: "=a" (pGIP));
534	return pGIP;
535	}
536	# endif
537	/** The GIP.
538	* We save a level of indirection by exporting the GIP instead of a variable
539	* pointing to it. */
540	extern DECLIMPORT(SUPGLOBALINFOPAGE) g_SUPGlobalInfoPage;
541	#endif
542
543	/**
544	* Gets the GIP pointer.
545	*
546	* @returns Pointer to the GIP or NULL.
547	*/
548	SUPDECL(PSUPGLOBALINFOPAGE) SUPGetGIP(void);
549
550	/** @name SUPGIP_FLAGS_XXX - SUPR3GipSetFlags flags.
551	* @{ */
552	/** Enable GIP test mode. */
553	#define SUPGIP_FLAGS_TESTING_ENABLE RT_BIT_32(0)
554	/** Valid mask of flags that can be set through the ioctl. */
555	#define SUPGIP_FLAGS_VALID_MASK RT_BIT_32(0)
556	/** GIP test mode needs to be checked (e.g. when enabled or being disabled). */
557	#define SUPGIP_FLAGS_TESTING RT_BIT_32(24)
558	/** Prepare to start GIP test mode. */
559	#define SUPGIP_FLAGS_TESTING_START RT_BIT_32(25)
560	/** Prepare to stop GIP test mode. */
561	#define SUPGIP_FLAGS_TESTING_STOP RT_BIT_32(26)
562	/** @} */
563
564	/** @internal */
565	SUPDECL(uint64_t) SUPGetCpuHzFromGipForAsyncMode(PSUPGLOBALINFOPAGE pGip);
566	SUPDECL(bool) SUPIsTscFreqCompatible(uint64_t uCpuHz, uint64_t *puGipCpuHz, bool fRelax);
567	SUPDECL(bool) SUPIsTscFreqCompatibleEx(uint64_t uBaseCpuHz, uint64_t uCpuHz, bool fRelax);
568
569
570	/**
571	* Gets the TSC frequency of the calling CPU.
572	*
573	* @returns TSC frequency, UINT64_MAX on failure (asserted).
574	* @param pGip The GIP pointer.
575	*/
576	DECLINLINE(uint64_t) SUPGetCpuHzFromGip(PSUPGLOBALINFOPAGE pGip)
577	{
578	if (RT_LIKELY( pGip
579	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
580	{
581	switch (pGip->u32Mode)
582	{
583	case SUPGIPMODE_INVARIANT_TSC:
584	case SUPGIPMODE_SYNC_TSC:
585	return pGip->aCPUs[0].u64CpuHz;
586	case SUPGIPMODE_ASYNC_TSC:
587	return SUPGetCpuHzFromGipForAsyncMode(pGip);
588	default: break; /* shut up gcc */
589	}
590	}
591	AssertFailed();
592	return UINT64_MAX;
593	}
594
595
596	/**
597	* Gets the TSC frequency of the specified CPU.
598	*
599	* @returns TSC frequency, UINT64_MAX on failure (asserted).
600	* @param pGip The GIP pointer.
601	* @param iCpuSet The CPU set index of the CPU in question.
602	*/
603	DECLINLINE(uint64_t) SUPGetCpuHzFromGipBySetIndex(PSUPGLOBALINFOPAGE pGip, uint32_t iCpuSet)
604	{
605	if (RT_LIKELY( pGip
606	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
607	{
608	switch (pGip->u32Mode)
609	{
610	case SUPGIPMODE_INVARIANT_TSC:
611	case SUPGIPMODE_SYNC_TSC:
612	return pGip->aCPUs[0].u64CpuHz;
613	case SUPGIPMODE_ASYNC_TSC:
614	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
615	{
616	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
617	if (RT_LIKELY(iCpu < pGip->cCpus))
618	return pGip->aCPUs[iCpu].u64CpuHz;
619	}
620	break;
621	default: break; /* shut up gcc */
622	}
623	}
624	AssertFailed();
625	return UINT64_MAX;
626	}
627
628
629	/**
630	* Gets the pointer to the per CPU data for a CPU given by its set index.
631	*
632	* @returns Pointer to the corresponding per CPU structure, or NULL if invalid.
633	* @param pGip The GIP pointer.
634	* @param iCpuSet The CPU set index of the CPU which we want.
635	*/
636	DECLINLINE(PSUPGIPCPU) SUPGetGipCpuBySetIndex(PSUPGLOBALINFOPAGE pGip, uint32_t iCpuSet)
637	{
638	if (RT_LIKELY( pGip
639	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
640	{
641	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
642	{
643	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
644	if (RT_LIKELY(iCpu < pGip->cCpus))
645	return &pGip->aCPUs[iCpu];
646	}
647	}
648	return NULL;
649	}
650
651
652	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
653
654	/** @internal */
655	SUPDECL(uint64_t) SUPReadTscWithDelta(PSUPGLOBALINFOPAGE pGip);
656
657	/**
658	* Read the host TSC value and applies the TSC delta if appropriate.
659	*
660	* @returns the TSC value.
661	* @remarks Requires GIP to be initialized and valid.
662	*/
663	DECLINLINE(uint64_t) SUPReadTsc(void)
664	{
665	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
666	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
667	return ASMReadTSC();
668	return SUPReadTscWithDelta(pGip);
669	}
670
671	#endif /* X86 \|\| AMD64 */
672
673	/** @internal */
674	SUPDECL(uint64_t) SUPGetTscDeltaSlow(PSUPGLOBALINFOPAGE pGip);
675
676	/**
677	* Gets the TSC delta for the current CPU.
678	*
679	* @returns The TSC delta value (will not return the special INT64_MAX value).
680	* @remarks Requires GIP to be initialized and valid.
681	*/
682	DECLINLINE(int64_t) SUPGetTscDelta(void)
683	{
684	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
685	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
686	return 0;
687	return SUPGetTscDeltaSlow(pGip);
688	}
689
690
691	/**
692	* Gets the TSC delta for a given CPU.
693	*
694	* @returns The TSC delta value (will not return the special INT64_MAX value).
695	* @param iCpuSet The CPU set index of the CPU which TSC delta we want.
696	* @remarks Requires GIP to be initialized and valid.
697	*/
698	DECLINLINE(int64_t) SUPGetTscDeltaByCpuSetIndex(uint32_t iCpuSet)
699	{
700	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
701	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
702	return 0;
703	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
704	{
705	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
706	if (RT_LIKELY(iCpu < pGip->cCpus))
707	{
708	int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta;
709	if (iTscDelta != INT64_MAX)
710	return iTscDelta;
711	}
712	}
713	AssertFailed();
714	return 0;
715	}
716
717
718	/**
719	* Checks if the TSC delta is available for a given CPU (if TSC-deltas are
720	* relevant).
721	*
722	* @returns true if it's okay to read the TSC, false otherwise.
723	*
724	* @param iCpuSet The CPU set index of the CPU which TSC delta we check.
725	* @remarks Requires GIP to be initialized and valid.
726	*/
727	DECLINLINE(bool) SUPIsTscDeltaAvailableForCpuSetIndex(uint32_t iCpuSet)
728	{
729	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
730	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
731	return true;
732	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
733	{
734	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
735	if (RT_LIKELY(iCpu < pGip->cCpus))
736	{
737	int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta;
738	if (iTscDelta != INT64_MAX)
739	return true;
740	}
741	}
742	return false;
743	}
744
745
746	/**
747	* Gets the descriptive GIP mode name.
748	*
749	* @returns The name.
750	* @param pGip Pointer to the GIP.
751	*/
752	DECLINLINE(const char *) SUPGetGIPModeName(PSUPGLOBALINFOPAGE pGip)
753	{
754	AssertReturn(pGip, NULL);
755	switch (pGip->u32Mode)
756	{
757	case SUPGIPMODE_INVARIANT_TSC: return "Invariant";
758	case SUPGIPMODE_SYNC_TSC: return "Synchronous";
759	case SUPGIPMODE_ASYNC_TSC: return "Asynchronous";
760	case SUPGIPMODE_INVALID: return "Invalid";
761	default: return "???";
762	}
763	}
764
765
766	/**
767	* Gets the descriptive TSC-delta enum name.
768	*
769	* @returns The name.
770	* @param pGip Pointer to the GIP.
771	*/
772	DECLINLINE(const char *) SUPGetGIPTscDeltaModeName(PSUPGLOBALINFOPAGE pGip)
773	{
774	AssertReturn(pGip, NULL);
775	switch (pGip->enmUseTscDelta)
776	{
777	case SUPGIPUSETSCDELTA_NOT_APPLICABLE: return "Not Applicable";
778	case SUPGIPUSETSCDELTA_ZERO_CLAIMED: return "Zero Claimed";
779	case SUPGIPUSETSCDELTA_PRACTICALLY_ZERO: return "Practically Zero";
780	case SUPGIPUSETSCDELTA_ROUGHLY_ZERO: return "Roughly Zero";
781	case SUPGIPUSETSCDELTA_NOT_ZERO: return "Not Zero";
782	default: return "???";
783	}
784	}
785
786
787	/**
788	* Request for generic VMMR0Entry calls.
789	*/
790	typedef struct SUPVMMR0REQHDR
791	{
792	/** The magic. (SUPVMMR0REQHDR_MAGIC) */
793	uint32_t u32Magic;
794	/** The size of the request. */
795	uint32_t cbReq;
796	} SUPVMMR0REQHDR;
797	/** Pointer to a ring-0 request header. */
798	typedef SUPVMMR0REQHDR *PSUPVMMR0REQHDR;
799	/** the SUPVMMR0REQHDR::u32Magic value (Ethan Iverson - The Bad Plus). */
800	#define SUPVMMR0REQHDR_MAGIC UINT32_C(0x19730211)
801
802
803	/** For the fast ioctl path.
804	* @{
805	*/
806	/** @see VMMR0_DO_RAW_RUN. */
807	#define SUP_VMMR0_DO_RAW_RUN 0
808	/** @see VMMR0_DO_HM_RUN. */
809	#define SUP_VMMR0_DO_HM_RUN 1
810	/** @see VMMR0_DO_NOP */
811	#define SUP_VMMR0_DO_NOP 2
812	/** @see VMMR0_DO_NEM_RUN */
813	#define SUP_VMMR0_DO_NEM_RUN 3
814	/** @} */
815
816	/** SUPR3QueryVTCaps capability flags
817	* @{
818	*/
819	/** AMD-V support. */
820	#define SUPVTCAPS_AMD_V RT_BIT(0)
821	/** VT-x support. */
822	#define SUPVTCAPS_VT_X RT_BIT(1)
823	/** Nested paging is supported. */
824	#define SUPVTCAPS_NESTED_PAGING RT_BIT(2)
825	/** VT-x: Unrestricted guest execution is supported. */
826	#define SUPVTCAPS_VTX_UNRESTRICTED_GUEST RT_BIT(3)
827	/** @} */
828
829	/**
830	* Request for generic FNSUPR0SERVICEREQHANDLER calls.
831	*/
832	typedef struct SUPR0SERVICEREQHDR
833	{
834	/** The magic. (SUPR0SERVICEREQHDR_MAGIC) */
835	uint32_t u32Magic;
836	/** The size of the request. */
837	uint32_t cbReq;
838	} SUPR0SERVICEREQHDR;
839	/** Pointer to a ring-0 service request header. */
840	typedef SUPR0SERVICEREQHDR *PSUPR0SERVICEREQHDR;
841	/** the SUPVMMR0REQHDR::u32Magic value (Esbjoern Svensson - E.S.P.). */
842	#define SUPR0SERVICEREQHDR_MAGIC UINT32_C(0x19640416)
843
844
845	/**
846	* Creates a single release event semaphore.
847	*
848	* @returns VBox status code.
849	* @param pSession The session handle of the caller.
850	* @param phEvent Where to return the handle to the event semaphore.
851	*/
852	SUPDECL(int) SUPSemEventCreate(PSUPDRVSESSION pSession, PSUPSEMEVENT phEvent);
853
854	/**
855	* Closes a single release event semaphore handle.
856	*
857	* @returns VBox status code.
858	* @retval VINF_OBJECT_DESTROYED if the semaphore was destroyed.
859	* @retval VINF_SUCCESS if the handle was successfully closed but the semaphore
860	* object remained alive because of other references.
861	*
862	* @param pSession The session handle of the caller.
863	* @param hEvent The handle. Nil is quietly ignored.
864	*/
865	SUPDECL(int) SUPSemEventClose(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent);
866
867	/**
868	* Signals a single release event semaphore.
869	*
870	* @returns VBox status code.
871	* @param pSession The session handle of the caller.
872	* @param hEvent The semaphore handle.
873	*/
874	SUPDECL(int) SUPSemEventSignal(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent);
875
876	#ifdef IN_RING0
877	/**
878	* Waits on a single release event semaphore, not interruptible.
879	*
880	* @returns VBox status code.
881	* @param pSession The session handle of the caller.
882	* @param hEvent The semaphore handle.
883	* @param cMillies The number of milliseconds to wait.
884	* @remarks Not available in ring-3.
885	*/
886	SUPDECL(int) SUPSemEventWait(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint32_t cMillies);
887	#endif
888
889	/**
890	* Waits on a single release event semaphore, interruptible.
891	*
892	* @returns VBox status code.
893	* @param pSession The session handle of the caller.
894	* @param hEvent The semaphore handle.
895	* @param cMillies The number of milliseconds to wait.
896	*/
897	SUPDECL(int) SUPSemEventWaitNoResume(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint32_t cMillies);
898
899	/**
900	* Waits on a single release event semaphore, interruptible.
901	*
902	* @returns VBox status code.
903	* @param pSession The session handle of the caller.
904	* @param hEvent The semaphore handle.
905	* @param uNsTimeout The deadline given on the RTTimeNanoTS() clock.
906	*/
907	SUPDECL(int) SUPSemEventWaitNsAbsIntr(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint64_t uNsTimeout);
908
909	/**
910	* Waits on a single release event semaphore, interruptible.
911	*
912	* @returns VBox status code.
913	* @param pSession The session handle of the caller.
914	* @param hEvent The semaphore handle.
915	* @param cNsTimeout The number of nanoseconds to wait.
916	*/
917	SUPDECL(int) SUPSemEventWaitNsRelIntr(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint64_t cNsTimeout);
918
919	/**
920	* Gets the best timeout resolution that SUPSemEventWaitNsAbsIntr and
921	* SUPSemEventWaitNsAbsIntr can do.
922	*
923	* @returns The resolution in nanoseconds.
924	* @param pSession The session handle of the caller.
925	*/
926	SUPDECL(uint32_t) SUPSemEventGetResolution(PSUPDRVSESSION pSession);
927
928
929	/**
930	* Creates a multiple release event semaphore.
931	*
932	* @returns VBox status code.
933	* @param pSession The session handle of the caller.
934	* @param phEventMulti Where to return the handle to the event semaphore.
935	*/
936	SUPDECL(int) SUPSemEventMultiCreate(PSUPDRVSESSION pSession, PSUPSEMEVENTMULTI phEventMulti);
937
938	/**
939	* Closes a multiple release event semaphore handle.
940	*
941	* @returns VBox status code.
942	* @retval VINF_OBJECT_DESTROYED if the semaphore was destroyed.
943	* @retval VINF_SUCCESS if the handle was successfully closed but the semaphore
944	* object remained alive because of other references.
945	*
946	* @param pSession The session handle of the caller.
947	* @param hEventMulti The handle. Nil is quietly ignored.
948	*/
949	SUPDECL(int) SUPSemEventMultiClose(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
950
951	/**
952	* Signals a multiple release event semaphore.
953	*
954	* @returns VBox status code.
955	* @param pSession The session handle of the caller.
956	* @param hEventMulti The semaphore handle.
957	*/
958	SUPDECL(int) SUPSemEventMultiSignal(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
959
960	/**
961	* Resets a multiple release event semaphore.
962	*
963	* @returns VBox status code.
964	* @param pSession The session handle of the caller.
965	* @param hEventMulti The semaphore handle.
966	*/
967	SUPDECL(int) SUPSemEventMultiReset(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
968
969	#ifdef IN_RING0
970	/**
971	* Waits on a multiple release event semaphore, not interruptible.
972	*
973	* @returns VBox status code.
974	* @param pSession The session handle of the caller.
975	* @param hEventMulti The semaphore handle.
976	* @param cMillies The number of milliseconds to wait.
977	* @remarks Not available in ring-3.
978	*/
979	SUPDECL(int) SUPSemEventMultiWait(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint32_t cMillies);
980	#endif
981
982	/**
983	* Waits on a multiple release event semaphore, interruptible.
984	*
985	* @returns VBox status code.
986	* @param pSession The session handle of the caller.
987	* @param hEventMulti The semaphore handle.
988	* @param cMillies The number of milliseconds to wait.
989	*/
990	SUPDECL(int) SUPSemEventMultiWaitNoResume(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint32_t cMillies);
991
992	/**
993	* Waits on a multiple release event semaphore, interruptible.
994	*
995	* @returns VBox status code.
996	* @param pSession The session handle of the caller.
997	* @param hEventMulti The semaphore handle.
998	* @param uNsTimeout The deadline given on the RTTimeNanoTS() clock.
999	*/
1000	SUPDECL(int) SUPSemEventMultiWaitNsAbsIntr(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint64_t uNsTimeout);
1001
1002	/**
1003	* Waits on a multiple release event semaphore, interruptible.
1004	*
1005	* @returns VBox status code.
1006	* @param pSession The session handle of the caller.
1007	* @param hEventMulti The semaphore handle.
1008	* @param cNsTimeout The number of nanoseconds to wait.
1009	*/
1010	SUPDECL(int) SUPSemEventMultiWaitNsRelIntr(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint64_t cNsTimeout);
1011
1012	/**
1013	* Gets the best timeout resolution that SUPSemEventMultiWaitNsAbsIntr and
1014	* SUPSemEventMultiWaitNsRelIntr can do.
1015	*
1016	* @returns The resolution in nanoseconds.
1017	* @param pSession The session handle of the caller.
1018	*/
1019	SUPDECL(uint32_t) SUPSemEventMultiGetResolution(PSUPDRVSESSION pSession);
1020
1021
1022	#ifdef IN_RING3
1023
1024	/** @defgroup grp_sup_r3 SUP Host Context Ring-3 API
1025	* @{
1026	*/
1027
1028	/**
1029	* Installs the support library.
1030	*
1031	* @returns VBox status code.
1032	*/
1033	SUPR3DECL(int) SUPR3Install(void);
1034
1035	/**
1036	* Uninstalls the support library.
1037	*
1038	* @returns VBox status code.
1039	*/
1040	SUPR3DECL(int) SUPR3Uninstall(void);
1041
1042	/**
1043	* Trusted main entry point.
1044	*
1045	* This is exported as "TrustedMain" by the dynamic libraries which contains the
1046	* "real" application binary for which the hardened stub is built. The entry
1047	* point is invoked upon successful initialization of the support library and
1048	* runtime.
1049	*
1050	* @returns main kind of exit code.
1051	* @param argc The argument count.
1052	* @param argv The argument vector.
1053	* @param envp The environment vector.
1054	*/
1055	typedef DECLCALLBACK(int) FNSUPTRUSTEDMAIN(int argc, char argv, char envp);
1056	/** Pointer to FNSUPTRUSTEDMAIN(). */
1057	typedef FNSUPTRUSTEDMAIN *PFNSUPTRUSTEDMAIN;
1058
1059	/** Which operation failed. */
1060	typedef enum SUPINITOP
1061	{
1062	/** Invalid. */
1063	kSupInitOp_Invalid = 0,
1064	/** Installation integrity error. */
1065	kSupInitOp_Integrity,
1066	/** Setuid related. */
1067	kSupInitOp_RootCheck,
1068	/** Driver related. */
1069	kSupInitOp_Driver,
1070	/** IPRT init related. */
1071	kSupInitOp_IPRT,
1072	/** Miscellaneous. */
1073	kSupInitOp_Misc,
1074	/** Place holder. */
1075	kSupInitOp_End
1076	} SUPINITOP;
1077
1078	/**
1079	* Trusted error entry point, optional.
1080	*
1081	* This is exported as "TrustedError" by the dynamic libraries which contains
1082	* the "real" application binary for which the hardened stub is built. The
1083	* hardened main() must specify SUPSECMAIN_FLAGS_TRUSTED_ERROR when calling
1084	* SUPR3HardenedMain.
1085	*
1086	* @param pszWhere Where the error occurred (function name).
1087	* @param enmWhat Which operation went wrong.
1088	* @param rc The status code.
1089	* @param pszMsgFmt Error message format string.
1090	* @param va The message format arguments.
1091	*/
1092	typedef DECLCALLBACK(void) FNSUPTRUSTEDERROR(const char *pszWhere, SUPINITOP enmWhat, int rc,
1093	const char *pszMsgFmt, va_list va) RT_IPRT_FORMAT_ATTR(4, 0);
1094	/** Pointer to FNSUPTRUSTEDERROR. */
1095	typedef FNSUPTRUSTEDERROR *PFNSUPTRUSTEDERROR;
1096
1097	/**
1098	* Secure main.
1099	*
1100	* This is used for the set-user-ID-on-execute binaries on unixy systems
1101	* and when using the open-vboxdrv-via-root-service setup on Windows.
1102	*
1103	* This function will perform the integrity checks of the VirtualBox
1104	* installation, open the support driver, open the root service (later),
1105	* and load the DLL corresponding to \a pszProgName and execute its main
1106	* function.
1107	*
1108	* @returns Return code appropriate for main().
1109	*
1110	* @param pszProgName The program name. This will be used to figure out which
1111	* DLL/SO/DYLIB to load and execute.
1112	* @param fFlags Flags.
1113	* @param argc The argument count.
1114	* @param argv The argument vector.
1115	* @param envp The environment vector.
1116	*/
1117	DECLHIDDEN(int) SUPR3HardenedMain(const char pszProgName, uint32_t fFlags, int argc, char argv, char *envp);
1118
1119	/** @name SUPR3HardenedMain flags.
1120	* @{ */
1121	/** Don't open the device. (Intended for VirtualBox without -startvm.) */
1122	#define SUPSECMAIN_FLAGS_DONT_OPEN_DEV RT_BIT_32(0)
1123	/** The hardened DLL has a "TrustedError" function (see FNSUPTRUSTEDERROR). */
1124	#define SUPSECMAIN_FLAGS_TRUSTED_ERROR RT_BIT_32(1)
1125	/** Hack for making VirtualBoxVM use VirtualBox.dylib on Mac OS X. */
1126	#define SUPSECMAIN_FLAGS_OSX_VM_APP RT_BIT_32(2)
1127	/** Program binary location mask. */
1128	#define SUPSECMAIN_FLAGS_LOC_MASK UINT32_C(0x00000010)
1129	/** Default binary location is the application binary directory. Does
1130	* not need to be given explicitly (it's 0). */
1131	#define SUPSECMAIN_FLAGS_LOC_APP_BIN UINT32_C(0x00000000)
1132	/** The binary is located in the testcase directory instead of the
1133	* default application binary directory. */
1134	#define SUPSECMAIN_FLAGS_LOC_TESTCASE UINT32_C(0x00000010)
1135	/** @} */
1136
1137	/**
1138	* Initializes the support library.
1139	*
1140	* Each successful call to SUPR3Init() or SUPR3InitEx must be countered by a
1141	* call to SUPR3Term(false).
1142	*
1143	* @returns VBox status code.
1144	* @param ppSession Where to store the session handle. Defaults to NULL.
1145	*/
1146	SUPR3DECL(int) SUPR3Init(PSUPDRVSESSION *ppSession);
1147
1148	/**
1149	* Initializes the support library, extended version.
1150	*
1151	* Each successful call to SUPR3Init() or SUPR3InitEx must be countered by a
1152	* call to SUPR3Term(false).
1153	*
1154	* @returns VBox status code.
1155	* @param fUnrestricted The desired access.
1156	* @param ppSession Where to store the session handle. Defaults to NULL.
1157	*/
1158	SUPR3DECL(int) SUPR3InitEx(bool fUnrestricted, PSUPDRVSESSION *ppSession);
1159
1160	/**
1161	* Terminates the support library.
1162	*
1163	* @returns VBox status code.
1164	* @param fForced Forced termination. This means to ignore the
1165	* init call count and just terminated.
1166	*/
1167	#ifdef __cplusplus
1168	SUPR3DECL(int) SUPR3Term(bool fForced = false);
1169	#else
1170	SUPR3DECL(int) SUPR3Term(int fForced);
1171	#endif
1172
1173	/**
1174	* Sets the ring-0 VM handle for use with fast IOCtls.
1175	*
1176	* @returns VBox status code.
1177	* @param pVMR0 The ring-0 VM handle.
1178	* NIL_RTR0PTR can be used to unset the handle when the
1179	* VM is about to be destroyed.
1180	*/
1181	SUPR3DECL(int) SUPR3SetVMForFastIOCtl(PVMR0 pVMR0);
1182
1183	/**
1184	* Calls the HC R0 VMM entry point.
1185	* See VMMR0Entry() for more details.
1186	*
1187	* @returns error code specific to uFunction.
1188	* @param pVMR0 Pointer to the Ring-0 (Host Context) mapping of the VM structure.
1189	* @param idCpu The virtual CPU ID.
1190	* @param uOperation Operation to execute.
1191	* @param pvArg Argument.
1192	*/
1193	SUPR3DECL(int) SUPR3CallVMMR0(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, void *pvArg);
1194
1195	/**
1196	* Variant of SUPR3CallVMMR0, except that this takes the fast ioclt path
1197	* regardsless of compile-time defaults.
1198	*
1199	* @returns VBox status code.
1200	* @param pVMR0 The ring-0 VM handle.
1201	* @param uOperation The operation; only the SUP_VMMR0_DO_* ones are valid.
1202	* @param idCpu The virtual CPU ID.
1203	*/
1204	SUPR3DECL(int) SUPR3CallVMMR0Fast(PVMR0 pVMR0, unsigned uOperation, VMCPUID idCpu);
1205
1206	/**
1207	* Calls the HC R0 VMM entry point, in a safer but slower manner than
1208	* SUPR3CallVMMR0. When entering using this call the R0 components can call
1209	* into the host kernel (i.e. use the SUPR0 and RT APIs).
1210	*
1211	* See VMMR0Entry() for more details.
1212	*
1213	* @returns error code specific to uFunction.
1214	* @param pVMR0 Pointer to the Ring-0 (Host Context) mapping of the VM structure.
1215	* @param idCpu The virtual CPU ID.
1216	* @param uOperation Operation to execute.
1217	* @param u64Arg Constant argument.
1218	* @param pReqHdr Pointer to a request header. Optional.
1219	* This will be copied in and out of kernel space. There currently is a size
1220	* limit on this, just below 4KB.
1221	*/
1222	SUPR3DECL(int) SUPR3CallVMMR0Ex(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr);
1223
1224	/**
1225	* Calls a ring-0 service.
1226	*
1227	* The operation and the request packet is specific to the service.
1228	*
1229	* @returns error code specific to uFunction.
1230	* @param pszService The service name.
1231	* @param cchService The length of the service name.
1232	* @param uOperation The request number.
1233	* @param u64Arg Constant argument.
1234	* @param pReqHdr Pointer to a request header. Optional.
1235	* This will be copied in and out of kernel space. There currently is a size
1236	* limit on this, just below 4KB.
1237	*/
1238	SUPR3DECL(int) SUPR3CallR0Service(const char *pszService, size_t cchService, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr);
1239
1240	/** Which logger. */
1241	typedef enum SUPLOGGER
1242	{
1243	SUPLOGGER_DEBUG = 1,
1244	SUPLOGGER_RELEASE
1245	} SUPLOGGER;
1246
1247	/**
1248	* Changes the settings of the specified ring-0 logger.
1249	*
1250	* @returns VBox status code.
1251	* @param enmWhich Which logger.
1252	* @param pszFlags The flags settings.
1253	* @param pszGroups The groups settings.
1254	* @param pszDest The destination specificier.
1255	*/
1256	SUPR3DECL(int) SUPR3LoggerSettings(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest);
1257
1258	/**
1259	* Creates a ring-0 logger instance.
1260	*
1261	* @returns VBox status code.
1262	* @param enmWhich Which logger to create.
1263	* @param pszFlags The flags settings.
1264	* @param pszGroups The groups settings.
1265	* @param pszDest The destination specificier.
1266	*/
1267	SUPR3DECL(int) SUPR3LoggerCreate(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest);
1268
1269	/**
1270	* Destroys a ring-0 logger instance.
1271	*
1272	* @returns VBox status code.
1273	* @param enmWhich Which logger.
1274	*/
1275	SUPR3DECL(int) SUPR3LoggerDestroy(SUPLOGGER enmWhich);
1276
1277	/**
1278	* Queries the paging mode of the host OS.
1279	*
1280	* @returns The paging mode.
1281	*/
1282	SUPR3DECL(SUPPAGINGMODE) SUPR3GetPagingMode(void);
1283
1284	/**
1285	* Allocate zero-filled pages.
1286	*
1287	* Use this to allocate a number of pages suitable for seeding / locking.
1288	* Call SUPR3PageFree() to free the pages once done with them.
1289	*
1290	* @returns VBox status.
1291	* @param cPages Number of pages to allocate.
1292	* @param ppvPages Where to store the base pointer to the allocated pages.
1293	*/
1294	SUPR3DECL(int) SUPR3PageAlloc(size_t cPages, void **ppvPages);
1295
1296	/**
1297	* Frees pages allocated with SUPR3PageAlloc().
1298	*
1299	* @returns VBox status.
1300	* @param pvPages Pointer returned by SUPR3PageAlloc().
1301	* @param cPages Number of pages that was allocated.
1302	*/
1303	SUPR3DECL(int) SUPR3PageFree(void *pvPages, size_t cPages);
1304
1305	/**
1306	* Allocate non-zeroed, locked, pages with user and, optionally, kernel
1307	* mappings.
1308	*
1309	* Use SUPR3PageFreeEx() to free memory allocated with this function.
1310	*
1311	* @returns VBox status code.
1312	* @param cPages The number of pages to allocate.
1313	* @param fFlags Flags, reserved. Must be zero.
1314	* @param ppvPages Where to store the address of the user mapping.
1315	* @param pR0Ptr Where to store the address of the kernel mapping.
1316	* NULL if no kernel mapping is desired.
1317	* @param paPages Where to store the physical addresses of each page.
1318	* Optional.
1319	*/
1320	SUPR3DECL(int) SUPR3PageAllocEx(size_t cPages, uint32_t fFlags, void **ppvPages, PRTR0PTR pR0Ptr, PSUPPAGE paPages);
1321
1322	/**
1323	* Maps a portion of a ring-3 only allocation into kernel space.
1324	*
1325	* @returns VBox status code.
1326	*
1327	* @param pvR3 The address SUPR3PageAllocEx return.
1328	* @param off Offset to start mapping at. Must be page aligned.
1329	* @param cb Number of bytes to map. Must be page aligned.
1330	* @param fFlags Flags, must be zero.
1331	* @param pR0Ptr Where to store the address on success.
1332	*
1333	*/
1334	SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr);
1335
1336	/**
1337	* Changes the protection of
1338	*
1339	* @returns VBox status code.
1340	* @retval VERR_NOT_SUPPORTED if the OS doesn't allow us to change page level
1341	* protection. See also RTR0MemObjProtect.
1342	*
1343	* @param pvR3 The ring-3 address SUPR3PageAllocEx returned.
1344	* @param R0Ptr The ring-0 address SUPR3PageAllocEx returned if it
1345	* is desired that the corresponding ring-0 page
1346	* mappings should change protection as well. Pass
1347	* NIL_RTR0PTR if the ring-0 pages should remain
1348	* unaffected.
1349	* @param off Offset to start at which to start chagning the page
1350	* level protection. Must be page aligned.
1351	* @param cb Number of bytes to change. Must be page aligned.
1352	* @param fProt The new page level protection, either a combination
1353	* of RTMEM_PROT_READ, RTMEM_PROT_WRITE and
1354	* RTMEM_PROT_EXEC, or just RTMEM_PROT_NONE.
1355	*/
1356	SUPR3DECL(int) SUPR3PageProtect(void *pvR3, RTR0PTR R0Ptr, uint32_t off, uint32_t cb, uint32_t fProt);
1357
1358	/**
1359	* Free pages allocated by SUPR3PageAllocEx.
1360	*
1361	* @returns VBox status code.
1362	* @param pvPages The address of the user mapping.
1363	* @param cPages The number of pages.
1364	*/
1365	SUPR3DECL(int) SUPR3PageFreeEx(void *pvPages, size_t cPages);
1366
1367	/**
1368	* Allocated memory with page aligned memory with a contiguous and locked physical
1369	* memory backing below 4GB.
1370	*
1371	* @returns Pointer to the allocated memory (virtual address).
1372	* *pHCPhys is set to the physical address of the memory.
1373	* If ppvR0 isn't NULL, *ppvR0 is set to the ring-0 mapping.
1374	* The returned memory must be freed using SUPR3ContFree().
1375	* @returns NULL on failure.
1376	* @param cPages Number of pages to allocate.
1377	* @param pR0Ptr Where to store the ring-0 mapping of the allocation. (optional)
1378	* @param pHCPhys Where to store the physical address of the memory block.
1379	*
1380	* @remark This 2nd version of this API exists because we're not able to map the
1381	* ring-3 mapping executable on WIN64. This is a serious problem in regard to
1382	* the world switchers.
1383	*/
1384	SUPR3DECL(void *) SUPR3ContAlloc(size_t cPages, PRTR0PTR pR0Ptr, PRTHCPHYS pHCPhys);
1385
1386	/**
1387	* Frees memory allocated with SUPR3ContAlloc().
1388	*
1389	* @returns VBox status code.
1390	* @param pv Pointer to the memory block which should be freed.
1391	* @param cPages Number of pages to be freed.
1392	*/
1393	SUPR3DECL(int) SUPR3ContFree(void *pv, size_t cPages);
1394
1395	/**
1396	* Allocated non contiguous physical memory below 4GB.
1397	*
1398	* The memory isn't zeroed.
1399	*
1400	* @returns VBox status code.
1401	* @returns NULL on failure.
1402	* @param cPages Number of pages to allocate.
1403	* @param ppvPages Where to store the pointer to the allocated memory.
1404	* The pointer stored here on success must be passed to
1405	* SUPR3LowFree when the memory should be released.
1406	* @param ppvPagesR0 Where to store the ring-0 pointer to the allocated memory. optional.
1407	* @param paPages Where to store the physical addresses of the individual pages.
1408	*/
1409	SUPR3DECL(int) SUPR3LowAlloc(size_t cPages, void **ppvPages, PRTR0PTR ppvPagesR0, PSUPPAGE paPages);
1410
1411	/**
1412	* Frees memory allocated with SUPR3LowAlloc().
1413	*
1414	* @returns VBox status code.
1415	* @param pv Pointer to the memory block which should be freed.
1416	* @param cPages Number of pages that was allocated.
1417	*/
1418	SUPR3DECL(int) SUPR3LowFree(void *pv, size_t cPages);
1419
1420	/**
1421	* Load a module into R0 HC.
1422	*
1423	* This will verify the file integrity in a similar manner as
1424	* SUPR3HardenedVerifyFile before loading it.
1425	*
1426	* @returns VBox status code.
1427	* @param pszFilename The path to the image file.
1428	* @param pszModule The module name. Max 32 bytes.
1429	* @param ppvImageBase Where to store the image address.
1430	* @param pErrInfo Where to return extended error information.
1431	* Optional.
1432	*/
1433	SUPR3DECL(int) SUPR3LoadModule(const char pszFilename, const char pszModule, void **ppvImageBase, PRTERRINFO pErrInfo);
1434
1435	/**
1436	* Load a module into R0 HC.
1437	*
1438	* This will verify the file integrity in a similar manner as
1439	* SUPR3HardenedVerifyFile before loading it.
1440	*
1441	* @returns VBox status code.
1442	* @param pszFilename The path to the image file.
1443	* @param pszModule The module name. Max 32 bytes.
1444	* @param pszSrvReqHandler The name of the service request handler entry
1445	* point. See FNSUPR0SERVICEREQHANDLER.
1446	* @param ppvImageBase Where to store the image address.
1447	*/
1448	SUPR3DECL(int) SUPR3LoadServiceModule(const char pszFilename, const char pszModule,
1449	const char pszSrvReqHandler, void *ppvImageBase);
1450
1451	/**
1452	* Frees a R0 HC module.
1453	*
1454	* @returns VBox status code.
1455	* @param pvImageBase The base address of the image to free.
1456	* @remark This will not actually 'free' the module, there are of course usage counting.
1457	*/
1458	SUPR3DECL(int) SUPR3FreeModule(void *pvImageBase);
1459
1460	/**
1461	* Lock down the module loader interface.
1462	*
1463	* This will lock down the module loader interface. No new modules can be
1464	* loaded and all loaded modules can no longer be freed.
1465	*
1466	* @returns VBox status code.
1467	* @param pErrInfo Where to return extended error information.
1468	* Optional.
1469	*/
1470	SUPR3DECL(int) SUPR3LockDownLoader(PRTERRINFO pErrInfo);
1471
1472	/**
1473	* Get the address of a symbol in a ring-0 module.
1474	*
1475	* @returns VBox status code.
1476	* @param pvImageBase The base address of the image to search.
1477	* @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
1478	* ordinal value rather than a string pointer.
1479	* @param ppvValue Where to store the symbol value.
1480	*/
1481	SUPR3DECL(int) SUPR3GetSymbolR0(void pvImageBase, const char pszSymbol, void **ppvValue);
1482
1483	/**
1484	* Load R0 HC VMM code.
1485	*
1486	* @returns VBox status code.
1487	* @deprecated Use SUPR3LoadModule(pszFilename, "VMMR0.r0", &pvImageBase)
1488	*/
1489	SUPR3DECL(int) SUPR3LoadVMM(const char *pszFilename);
1490
1491	/**
1492	* Unloads R0 HC VMM code.
1493	*
1494	* @returns VBox status code.
1495	* @deprecated Use SUPR3FreeModule().
1496	*/
1497	SUPR3DECL(int) SUPR3UnloadVMM(void);
1498
1499	/**
1500	* Get the physical address of the GIP.
1501	*
1502	* @returns VBox status code.
1503	* @param pHCPhys Where to store the physical address of the GIP.
1504	*/
1505	SUPR3DECL(int) SUPR3GipGetPhys(PRTHCPHYS pHCPhys);
1506
1507	/**
1508	* Initializes only the bits relevant for the SUPR3HardenedVerify* APIs.
1509	*
1510	* This is for users that don't necessarily need to initialize the whole of
1511	* SUPLib. There is no harm in calling this one more time.
1512	*
1513	* @returns VBox status code.
1514	* @remarks Currently not counted, so only call once.
1515	*/
1516	SUPR3DECL(int) SUPR3HardenedVerifyInit(void);
1517
1518	/**
1519	* Reverses the effect of SUPR3HardenedVerifyInit if SUPR3InitEx hasn't been
1520	* called.
1521	*
1522	* Ignored if the support library was initialized using SUPR3Init or
1523	* SUPR3InitEx.
1524	*
1525	* @returns VBox status code.
1526	*/
1527	SUPR3DECL(int) SUPR3HardenedVerifyTerm(void);
1528
1529	/**
1530	* Verifies the integrity of a file, and optionally opens it.
1531	*
1532	* The integrity check is for whether the file is suitable for loading into
1533	* the hypervisor or VM process. The integrity check may include verifying
1534	* the authenticode/elfsign/whatever signature of the file, which can take
1535	* a little while.
1536	*
1537	* @returns VBox status code. On failure it will have printed a LogRel message.
1538	*
1539	* @param pszFilename The file.
1540	* @param pszWhat For the LogRel on failure.
1541	* @param phFile Where to store the handle to the opened file. This is optional, pass NULL
1542	* if the file should not be opened.
1543	* @deprecated Write a new one.
1544	*/
1545	SUPR3DECL(int) SUPR3HardenedVerifyFile(const char pszFilename, const char pszWhat, PRTFILE phFile);
1546
1547	/**
1548	* Verifies the integrity of a the current process, including the image
1549	* location and that the invocation was absolute.
1550	*
1551	* This must currently be called after initializing the runtime. The intended
1552	* audience is set-uid-to-root applications, root services and similar.
1553	*
1554	* @returns VBox status code. On failure
1555	* message.
1556	* @param pszArgv0 The first argument to main().
1557	* @param fInternal Set this to @c true if this is an internal
1558	* VirtualBox application. Otherwise pass @c false.
1559	* @param pErrInfo Where to return extended error information.
1560	*/
1561	SUPR3DECL(int) SUPR3HardenedVerifySelf(const char *pszArgv0, bool fInternal, PRTERRINFO pErrInfo);
1562
1563	/**
1564	* Verifies the integrity of an installation directory.
1565	*
1566	* The integrity check verifies that the directory cannot be tampered with by
1567	* normal users on the system. On Unix this translates to root ownership and
1568	* no symbolic linking.
1569	*
1570	* @returns VBox status code. On failure a message will be stored in @a pszErr.
1571	*
1572	* @param pszDirPath The directory path.
1573	* @param fRecursive Whether the check should be recursive or
1574	* not. When set, all sub-directores will be checked,
1575	* including files (@a fCheckFiles is ignored).
1576	* @param fCheckFiles Whether to apply the same basic integrity check to
1577	* the files in the directory as the directory itself.
1578	* @param pErrInfo Where to return extended error information.
1579	* Optional.
1580	*/
1581	SUPR3DECL(int) SUPR3HardenedVerifyDir(const char *pszDirPath, bool fRecursive, bool fCheckFiles, PRTERRINFO pErrInfo);
1582
1583	/**
1584	* Verifies the integrity of a plug-in module.
1585	*
1586	* This is similar to SUPR3HardenedLdrLoad, except it does not load the module
1587	* and that the module does not have to be shipped with VirtualBox.
1588	*
1589	* @returns VBox status code. On failure a message will be stored in @a pszErr.
1590	*
1591	* @param pszFilename The filename of the plug-in module (nothing can be
1592	* omitted here).
1593	* @param pErrInfo Where to return extended error information.
1594	* Optional.
1595	*/
1596	SUPR3DECL(int) SUPR3HardenedVerifyPlugIn(const char *pszFilename, PRTERRINFO pErrInfo);
1597
1598	/**
1599	* Same as RTLdrLoad() but will verify the files it loads (hardened builds).
1600	*
1601	* Will add dll suffix if missing and try load the file.
1602	*
1603	* @returns iprt status code.
1604	* @param pszFilename Image filename. This must have a path.
1605	* @param phLdrMod Where to store the handle to the loaded module.
1606	* @param fFlags See RTLDRLOAD_FLAGS_XXX.
1607	* @param pErrInfo Where to return extended error information.
1608	* Optional.
1609	*/
1610	SUPR3DECL(int) SUPR3HardenedLdrLoad(const char *pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo);
1611
1612	/**
1613	* Same as RTLdrLoadAppPriv() but it will verify the files it loads (hardened
1614	* builds).
1615	*
1616	* Will add dll suffix to the file if missing, then look for it in the
1617	* architecture dependent application directory.
1618	*
1619	* @returns iprt status code.
1620	* @param pszFilename Image filename.
1621	* @param phLdrMod Where to store the handle to the loaded module.
1622	* @param fFlags See RTLDRLOAD_FLAGS_XXX.
1623	* @param pErrInfo Where to return extended error information.
1624	* Optional.
1625	*/
1626	SUPR3DECL(int) SUPR3HardenedLdrLoadAppPriv(const char *pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo);
1627
1628	/**
1629	* Same as RTLdrLoad() but will verify the files it loads (hardened builds).
1630	*
1631	* This differs from SUPR3HardenedLdrLoad() in that it can load modules from
1632	* extension packs and anything else safely installed on the system, provided
1633	* they pass the hardening tests.
1634	*
1635	* @returns iprt status code.
1636	* @param pszFilename The full path to the module, with extension.
1637	* @param phLdrMod Where to store the handle to the loaded module.
1638	* @param pErrInfo Where to return extended error information.
1639	* Optional.
1640	*/
1641	SUPR3DECL(int) SUPR3HardenedLdrLoadPlugIn(const char *pszFilename, PRTLDRMOD phLdrMod, PRTERRINFO pErrInfo);
1642
1643	/**
1644	* Check if the host kernel can run in VMX root mode.
1645	*
1646	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1647	* @param ppszWhy Where to return an explanatory message on failure.
1648	*/
1649	SUPR3DECL(int) SUPR3QueryVTxSupported(const char **ppszWhy);
1650
1651	/**
1652	* Return VT-x/AMD-V capabilities.
1653	*
1654	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1655	* @param pfCaps Pointer to capability dword (out).
1656	* @todo Intended for main, which means we need to relax the privilege requires
1657	* when accessing certain vboxdrv functions.
1658	*/
1659	SUPR3DECL(int) SUPR3QueryVTCaps(uint32_t *pfCaps);
1660
1661	/**
1662	* Open the tracer.
1663	*
1664	* @returns VBox status code.
1665	* @param uCookie Cookie identifying the tracer we expect to talk to.
1666	* @param uArg Tracer specific open argument.
1667	*/
1668	SUPR3DECL(int) SUPR3TracerOpen(uint32_t uCookie, uintptr_t uArg);
1669
1670	/**
1671	* Closes the tracer.
1672	*
1673	* @returns VBox status code.
1674	*/
1675	SUPR3DECL(int) SUPR3TracerClose(void);
1676
1677	/**
1678	* Perform an I/O request on the tracer.
1679	*
1680	* @returns VBox status.
1681	* @param uCmd The tracer command.
1682	* @param uArg The argument.
1683	* @param piRetVal Where to store the tracer return value.
1684	*/
1685	SUPR3DECL(int) SUPR3TracerIoCtl(uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal);
1686
1687	/**
1688	* Registers the user module with the tracer.
1689	*
1690	* @returns VBox status code.
1691	* @param hModNative Native module handle. Pass ~(uintptr_t)0 if not
1692	* at hand.
1693	* @param pszModule The module name.
1694	* @param pVtgHdr The VTG header.
1695	* @param uVtgHdrAddr The address to which the VTG header is loaded
1696	* in the relevant execution context.
1697	* @param fFlags See SUP_TRACER_UMOD_FLAGS_XXX
1698	*/
1699	SUPR3DECL(int) SUPR3TracerRegisterModule(uintptr_t hModNative, const char pszModule, struct VTGOBJHDR pVtgHdr,
1700	RTUINTPTR uVtgHdrAddr, uint32_t fFlags);
1701
1702	/**
1703	* Deregisters the user module.
1704	*
1705	* @returns VBox status code.
1706	* @param pVtgHdr The VTG header.
1707	*/
1708	SUPR3DECL(int) SUPR3TracerDeregisterModule(struct VTGOBJHDR *pVtgHdr);
1709
1710	/**
1711	* Fire the probe.
1712	*
1713	* @param pVtgProbeLoc The probe location record.
1714	* @param uArg0 Raw probe argument 0.
1715	* @param uArg1 Raw probe argument 1.
1716	* @param uArg2 Raw probe argument 2.
1717	* @param uArg3 Raw probe argument 3.
1718	* @param uArg4 Raw probe argument 4.
1719	*/
1720	SUPDECL(void) SUPTracerFireProbe(struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
1721	uintptr_t uArg3, uintptr_t uArg4);
1722
1723	/**
1724	* Attempts to read the value of an MSR.
1725	*
1726	* @returns VBox status code.
1727	* @param uMsr The MSR to read.
1728	* @param idCpu The CPU to read it on, NIL_RTCPUID if it doesn't
1729	* matter which CPU.
1730	* @param puValue Where to return the value.
1731	* @param pfGp Where to store the \#GP indicator for the read
1732	* operation.
1733	*/
1734	SUPR3DECL(int) SUPR3MsrProberRead(uint32_t uMsr, RTCPUID idCpu, uint64_t puValue, bool pfGp);
1735
1736	/**
1737	* Attempts to write to an MSR.
1738	*
1739	* @returns VBox status code.
1740	* @param uMsr The MSR to write to.
1741	* @param idCpu The CPU to wrtie it on, NIL_RTCPUID if it
1742	* doesn't matter which CPU.
1743	* @param uValue The value to write.
1744	* @param pfGp Where to store the \#GP indicator for the write
1745	* operation.
1746	*/
1747	SUPR3DECL(int) SUPR3MsrProberWrite(uint32_t uMsr, RTCPUID idCpu, uint64_t uValue, bool *pfGp);
1748
1749	/**
1750	* Attempts to modify the value of an MSR.
1751	*
1752	* @returns VBox status code.
1753	* @param uMsr The MSR to modify.
1754	* @param idCpu The CPU to modify it on, NIL_RTCPUID if it
1755	* doesn't matter which CPU.
1756	* @param fAndMask The bits to keep in the current MSR value.
1757	* @param fOrMask The bits to set before writing.
1758	* @param pResult The result buffer.
1759	*/
1760	SUPR3DECL(int) SUPR3MsrProberModify(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask,
1761	PSUPMSRPROBERMODIFYRESULT pResult);
1762
1763	/**
1764	* Attempts to modify the value of an MSR, extended version.
1765	*
1766	* @returns VBox status code.
1767	* @param uMsr The MSR to modify.
1768	* @param idCpu The CPU to modify it on, NIL_RTCPUID if it
1769	* doesn't matter which CPU.
1770	* @param fAndMask The bits to keep in the current MSR value.
1771	* @param fOrMask The bits to set before writing.
1772	* @param fFaster If set to @c true some cache/tlb invalidation is
1773	* skipped, otherwise behave like
1774	* SUPR3MsrProberModify.
1775	* @param pResult The result buffer.
1776	*/
1777	SUPR3DECL(int) SUPR3MsrProberModifyEx(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask, bool fFaster,
1778	PSUPMSRPROBERMODIFYRESULT pResult);
1779
1780	/**
1781	* Resume built-in keyboard on MacBook Air and Pro hosts.
1782	*
1783	* @returns VBox status code.
1784	*/
1785	SUPR3DECL(int) SUPR3ResumeSuspendedKeyboards(void);
1786
1787	/**
1788	* Measure the TSC-delta for the specified CPU.
1789	*
1790	* @returns VBox status code.
1791	* @param idCpu The CPU to measure the TSC-delta for.
1792	* @param fAsync Whether the measurement is asynchronous, returns
1793	* immediately after signalling a measurement
1794	* request.
1795	* @param fForce Whether to perform a measurement even if the
1796	* specified CPU has a (possibly) valid TSC delta.
1797	* @param cRetries Number of times to retry failed delta
1798	* measurements.
1799	* @param cMsWaitRetry Number of milliseconds to wait between retries.
1800	*/
1801	SUPR3DECL(int) SUPR3TscDeltaMeasure(RTCPUID idCpu, bool fAsync, bool fForce, uint8_t cRetries, uint8_t cMsWaitRetry);
1802
1803	/**
1804	* Reads the delta-adjust TSC value.
1805	*
1806	* @returns VBox status code.
1807	* @param puTsc Where to store the read TSC value.
1808	* @param pidApic Where to store the APIC ID of the CPU where the TSC
1809	* was read (optional, can be NULL).
1810	*/
1811	SUPR3DECL(int) SUPR3ReadTsc(uint64_t puTsc, uint16_t pidApic);
1812
1813	/**
1814	* Modifies the GIP flags.
1815	*
1816	* @returns VBox status code.
1817	* @param fOrMask The OR mask of the GIP flags, see SUPGIP_FLAGS_XXX.
1818	* @param fAndMask The AND mask of the GIP flags, see SUPGIP_FLAGS_XXX.
1819	*/
1820	SUPR3DECL(int) SUPR3GipSetFlags(uint32_t fOrMask, uint32_t fAndMask);
1821
1822	/**
1823	* Return processor microcode revision, if applicable.
1824	*
1825	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1826	* @param puMicrocodeRev Pointer to microcode revision dword (out).
1827	*/
1828	SUPR3DECL(int) SUPR3QueryMicrocodeRev(uint32_t *puMicrocodeRev);
1829
1830	/** @} */
1831	#endif /* IN_RING3 */
1832
1833
1834	/** @name User mode module flags (SUPR3TracerRegisterModule & SUP_IOCTL_TRACER_UMOD_REG).
1835	* @{ */
1836	/** Executable image. */
1837	#define SUP_TRACER_UMOD_FLAGS_EXE UINT32_C(1)
1838	/** Shared library (DLL, DYLIB, SO, etc). */
1839	#define SUP_TRACER_UMOD_FLAGS_SHARED UINT32_C(2)
1840	/** Image type mask. */
1841	#define SUP_TRACER_UMOD_FLAGS_TYPE_MASK UINT32_C(3)
1842	/** @} */
1843
1844
1845	#ifdef IN_RING0
1846	/** @defgroup grp_sup_r0 SUP Host Context Ring-0 API
1847	* @{
1848	*/
1849
1850	/**
1851	* Security objectype.
1852	*/
1853	typedef enum SUPDRVOBJTYPE
1854	{
1855	/** The usual invalid object. */
1856	SUPDRVOBJTYPE_INVALID = 0,
1857	/** A Virtual Machine instance. */
1858	SUPDRVOBJTYPE_VM,
1859	/** Internal network. */
1860	SUPDRVOBJTYPE_INTERNAL_NETWORK,
1861	/** Internal network interface. */
1862	SUPDRVOBJTYPE_INTERNAL_NETWORK_INTERFACE,
1863	/** Single release event semaphore. */
1864	SUPDRVOBJTYPE_SEM_EVENT,
1865	/** Multiple release event semaphore. */
1866	SUPDRVOBJTYPE_SEM_EVENT_MULTI,
1867	/** Raw PCI device. */
1868	SUPDRVOBJTYPE_RAW_PCI_DEVICE,
1869	/** The first invalid object type in this end. */
1870	SUPDRVOBJTYPE_END,
1871	/** The usual 32-bit type size hack. */
1872	SUPDRVOBJTYPE_32_BIT_HACK = 0x7ffffff
1873	} SUPDRVOBJTYPE;
1874
1875	/**
1876	* Object destructor callback.
1877	* This is called for reference counted objectes when the count reaches 0.
1878	*
1879	* @param pvObj The object pointer.
1880	* @param pvUser1 The first user argument.
1881	* @param pvUser2 The second user argument.
1882	*/
1883	typedef DECLCALLBACK(void) FNSUPDRVDESTRUCTOR(void pvObj, void pvUser1, void *pvUser2);
1884	/** Pointer to a FNSUPDRVDESTRUCTOR(). */
1885	typedef FNSUPDRVDESTRUCTOR *PFNSUPDRVDESTRUCTOR;
1886
1887	SUPR0DECL(void ) SUPR0ObjRegister(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void pvUser1, void *pvUser2);
1888	SUPR0DECL(int) SUPR0ObjAddRef(void *pvObj, PSUPDRVSESSION pSession);
1889	SUPR0DECL(int) SUPR0ObjAddRefEx(void *pvObj, PSUPDRVSESSION pSession, bool fNoBlocking);
1890	SUPR0DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession);
1891	SUPR0DECL(int) SUPR0ObjVerifyAccess(void pvObj, PSUPDRVSESSION pSession, const char pszObjName);
1892
1893	SUPR0DECL(PVM) SUPR0GetSessionVM(PSUPDRVSESSION pSession);
1894	SUPR0DECL(PGVM) SUPR0GetSessionGVM(PSUPDRVSESSION pSession);
1895	SUPR0DECL(int) SUPR0SetSessionVM(PSUPDRVSESSION pSession, PGVM pGVM, PVM pVM);
1896
1897	SUPR0DECL(int) SUPR0LockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages);
1898	SUPR0DECL(int) SUPR0UnlockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3);
1899	SUPR0DECL(int) SUPR0ContAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS pHCPhys);
1900	SUPR0DECL(int) SUPR0ContFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
1901	SUPR0DECL(int) SUPR0LowAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS paPages);
1902	SUPR0DECL(int) SUPR0LowFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
1903	SUPR0DECL(int) SUPR0MemAlloc(PSUPDRVSESSION pSession, uint32_t cb, PRTR0PTR ppvR0, PRTR3PTR ppvR3);
1904	SUPR0DECL(int) SUPR0MemGetPhys(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, PSUPPAGE paPages);
1905	SUPR0DECL(int) SUPR0MemFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
1906	SUPR0DECL(int) SUPR0PageAllocEx(PSUPDRVSESSION pSession, uint32_t cPages, uint32_t fFlags, PRTR3PTR ppvR3, PRTR0PTR ppvR0, PRTHCPHYS paPages);
1907	SUPR0DECL(int) SUPR0PageMapKernel(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t offSub, uint32_t cbSub, uint32_t fFlags, PRTR0PTR ppvR0);
1908	SUPR0DECL(int) SUPR0PageProtect(PSUPDRVSESSION pSession, RTR3PTR pvR3, RTR0PTR pvR0, uint32_t offSub, uint32_t cbSub, uint32_t fProt);
1909	SUPR0DECL(int) SUPR0PageFree(PSUPDRVSESSION pSession, RTR3PTR pvR3);
1910	SUPR0DECL(int) SUPR0GipMap(PSUPDRVSESSION pSession, PRTR3PTR ppGipR3, PRTHCPHYS pHCPhysGip);
1911	SUPR0DECL(int) SUPR0GetSvmUsability(bool fInitSvm);
1912	SUPR0DECL(int) SUPR0GetVmxUsability(bool *pfIsSmxModeAmbiguous);
1913	SUPR0DECL(int) SUPR0GetRawModeUsability(void);
1914	SUPR0DECL(int) SUPR0GetCurrentGdtRw(RTHCUINTPTR *pGdtRw);
1915	SUPR0DECL(int) SUPR0QueryVTCaps(PSUPDRVSESSION pSession, uint32_t *pfCaps);
1916	SUPR0DECL(int) SUPR0GipUnmap(PSUPDRVSESSION pSession);
1917	SUPR0DECL(int) SUPR0QueryUcodeRev(PSUPDRVSESSION pSession, uint32_t *puMicrocodeRev);
1918	SUPR0DECL(SUPPAGINGMODE) SUPR0GetPagingMode(void);
1919	SUPR0DECL(RTCCUINTREG) SUPR0ChangeCR4(RTCCUINTREG fOrMask, RTCCUINTREG fAndMask);
1920	SUPR0DECL(int) SUPR0EnableVTx(bool fEnable);
1921	SUPR0DECL(bool) SUPR0SuspendVTxOnCpu(void);
1922	SUPR0DECL(void) SUPR0ResumeVTxOnCpu(bool fSuspended);
1923	#define SUP_TSCDELTA_MEASURE_F_FORCE RT_BIT_32(0)
1924	#define SUP_TSCDELTA_MEASURE_F_ASYNC RT_BIT_32(1)
1925	#define SUP_TSCDELTA_MEASURE_F_VALID_MASK UINT32_C(0x00000003)
1926	SUPR0DECL(int) SUPR0TscDeltaMeasureBySetIndex(PSUPDRVSESSION pSession, uint32_t iCpuSet, uint32_t fFlags,
1927	RTMSINTERVAL cMsWaitRetry, RTMSINTERVAL cMsWaitThread, uint32_t cTries);
1928
1929	SUPR0DECL(void) SUPR0BadContext(PSUPDRVSESSION pSession, const char pszFile, uint32_t uLine, const char pszExpr);
1930
1931	/** Context structure returned by SUPR0IoCtlSetup for use with
1932	* SUPR0IoCtlPerform and cleaned up by SUPR0IoCtlCleanup. */
1933	typedef struct SUPR0IOCTLCTX *PSUPR0IOCTLCTX;
1934
1935	/**
1936	* Sets up a I/O control context for the given handle.
1937	*
1938	* @returns VBox status code.
1939	* @param pSession The support driver session.
1940	* @param hHandle The handle.
1941	* @param fFlags Flag, MBZ.
1942	* @param ppCtx Where the context is returned.
1943	*/
1944	SUPR0DECL(int) SUPR0IoCtlSetupForHandle(PSUPDRVSESSION pSession, intptr_t hHandle, uint32_t fFlags, PSUPR0IOCTLCTX *ppCtx);
1945
1946	/**
1947	* Cleans up the I/O control context when done.
1948	*
1949	* This won't close the handle passed to SUPR0IoCtlSetupForHandle.
1950	*
1951	* @returns VBox status code.
1952	* @param pCtx The I/O control context to cleanup.
1953	*/
1954	SUPR0DECL(int) SUPR0IoCtlCleanup(PSUPR0IOCTLCTX pCtx);
1955
1956	/**
1957	* Performs an I/O control operation.
1958	*
1959	* @returns VBox status code.
1960	* @param pCtx The I/O control context returned by
1961	* SUPR0IoCtlSetupForHandle.
1962	* @param uFunction The I/O control function to perform.
1963	* @param pvInput Pointer to input buffer (ring-0).
1964	* @param pvInputUser Ring-3 pointer corresponding to @a pvInput.
1965	* @param cbInput The amount of input. If zero, both input pointers
1966	* are expected to be NULL.
1967	* @param pvOutput Pointer to output buffer (ring-0).
1968	* @param pvOutputUser Ring-3 pointer corresponding to @a pvInput.
1969	* @param cbOutput The amount of input. If zero, both input pointers
1970	* are expected to be NULL.
1971	* @param piNativeRc Where to return the native return code. When
1972	* specified the VBox status code will typically be
1973	* VINF_SUCCESS and the caller have to consult this for
1974	* the actual result of the operation. (This saves
1975	* pointless status code conversion.) Optional.
1976	*
1977	* @note On unix systems where there is only one set of buffers possible,
1978	* pass the same pointers as input and output.
1979	*/
1980	SUPR0DECL(int) SUPR0IoCtlPerform(PSUPR0IOCTLCTX pCtx, uintptr_t uFunction,
1981	void *pvInput, RTR3PTR pvInputUser, size_t cbInput,
1982	void *pvOutput, RTR3PTR pvOutputUser, size_t cbOutput,
1983	int32_t *piNativeRc);
1984
1985	/**
1986	* Writes to the debugger and/or kernel log.
1987	*
1988	* The length of the formatted message is somewhat limited, so keep things short
1989	* and to the point.
1990	*
1991	* @returns Number of bytes written, mabye.
1992	* @param pszFormat IPRT format string.
1993	* @param ... Arguments referenced by the format string.
1994	*/
1995	SUPR0DECL(int) SUPR0Printf(const char *pszFormat, ...) RT_IPRT_FORMAT_ATTR(1, 2);
1996
1997	/**
1998	* Returns configuration flags of the host kernel.
1999	*
2000	* @returns Combination of SUPKERNELFEATURES_XXX flags.
2001	*/
2002	SUPR0DECL(uint32_t) SUPR0GetKernelFeatures(void);
2003
2004
2005	/** @name Absolute symbols
2006	* Take the address of these, don't try call them.
2007	* @{ */
2008	SUPR0DECL(void) SUPR0AbsIs64bit(void);
2009	SUPR0DECL(void) SUPR0Abs64bitKernelCS(void);
2010	SUPR0DECL(void) SUPR0Abs64bitKernelSS(void);
2011	SUPR0DECL(void) SUPR0Abs64bitKernelDS(void);
2012	SUPR0DECL(void) SUPR0AbsKernelCS(void);
2013	SUPR0DECL(void) SUPR0AbsKernelSS(void);
2014	SUPR0DECL(void) SUPR0AbsKernelDS(void);
2015	SUPR0DECL(void) SUPR0AbsKernelES(void);
2016	SUPR0DECL(void) SUPR0AbsKernelFS(void);
2017	SUPR0DECL(void) SUPR0AbsKernelGS(void);
2018	/** @} */
2019
2020	/**
2021	* Support driver component factory.
2022	*
2023	* Component factories are registered by drivers that provides services
2024	* such as the host network interface filtering and access to the host
2025	* TCP/IP stack.
2026	*
2027	* @remark Module dependencies and making sure that a component doesn't
2028	* get unloaded while in use, is the sole responsibility of the
2029	* driver/kext/whatever implementing the component.
2030	*/
2031	typedef struct SUPDRVFACTORY
2032	{
2033	/** The (unique) name of the component factory. */
2034	char szName[56];
2035	/**
2036	* Queries a factory interface.
2037	*
2038	* The factory interface is specific to each component and will be be
2039	* found in the header(s) for the component alongside its UUID.
2040	*
2041	* @returns Pointer to the factory interfaces on success, NULL on failure.
2042	*
2043	* @param pSupDrvFactory Pointer to this structure.
2044	* @param pSession The SUPDRV session making the query.
2045	* @param pszInterfaceUuid The UUID of the factory interface.
2046	*/
2047	DECLR0CALLBACKMEMBER(void , pfnQueryFactoryInterface,(struct SUPDRVFACTORY const pSupDrvFactory, PSUPDRVSESSION pSession, const char *pszInterfaceUuid));
2048	} SUPDRVFACTORY;
2049	/** Pointer to a support driver factory. */
2050	typedef SUPDRVFACTORY *PSUPDRVFACTORY;
2051	/** Pointer to a const support driver factory. */
2052	typedef SUPDRVFACTORY const *PCSUPDRVFACTORY;
2053
2054	SUPR0DECL(int) SUPR0ComponentRegisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
2055	SUPR0DECL(int) SUPR0ComponentDeregisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
2056	SUPR0DECL(int) SUPR0ComponentQueryFactory(PSUPDRVSESSION pSession, const char pszName, const char pszInterfaceUuid, void **ppvFactoryIf);
2057
2058
2059	/** @name Tracing
2060	* @{ */
2061
2062	/**
2063	* Tracer data associated with a provider.
2064	*/
2065	typedef union SUPDRVTRACERDATA
2066	{
2067	/** Generic */
2068	uint64_t au64[2];
2069
2070	/** DTrace data. */
2071	struct
2072	{
2073	/** Provider ID. */
2074	uintptr_t idProvider;
2075	/** The number of trace points provided. */
2076	uint32_t volatile cProvidedProbes;
2077	/** Whether we've invalidated this bugger. */
2078	bool fZombie;
2079	} DTrace;
2080	} SUPDRVTRACERDATA;
2081	/** Pointer to the tracer data associated with a provider. */
2082	typedef SUPDRVTRACERDATA *PSUPDRVTRACERDATA;
2083
2084	/**
2085	* Probe location info for ring-0.
2086	*
2087	* Since we cannot trust user tracepoint modules, we need to duplicate the probe
2088	* ID and enabled flag in ring-0.
2089	*/
2090	typedef struct SUPDRVPROBELOC
2091	{
2092	/** The probe ID. */
2093	uint32_t idProbe;
2094	/** Whether it's enabled or not. */
2095	bool fEnabled;
2096	} SUPDRVPROBELOC;
2097	/** Pointer to a ring-0 probe location record. */
2098	typedef SUPDRVPROBELOC *PSUPDRVPROBELOC;
2099
2100	/**
2101	* Probe info for ring-0.
2102	*
2103	* Since we cannot trust user tracepoint modules, we need to duplicate the
2104	* probe enable count.
2105	*/
2106	typedef struct SUPDRVPROBEINFO
2107	{
2108	/** The number of times this probe has been enabled. */
2109	uint32_t volatile cEnabled;
2110	} SUPDRVPROBEINFO;
2111	/** Pointer to a ring-0 probe info record. */
2112	typedef SUPDRVPROBEINFO *PSUPDRVPROBEINFO;
2113
2114	/**
2115	* Support driver tracepoint provider core.
2116	*/
2117	typedef struct SUPDRVVDTPROVIDERCORE
2118	{
2119	/** The tracer data member. */
2120	SUPDRVTRACERDATA TracerData;
2121	/** Pointer to the provider name (a copy that's always available). */
2122	const char *pszName;
2123	/** Pointer to the module name (a copy that's always available). */
2124	const char *pszModName;
2125
2126	/** The provider descriptor. */
2127	struct VTGDESCPROVIDER *pDesc;
2128	/** The VTG header. */
2129	struct VTGOBJHDR *pHdr;
2130
2131	/** The size of the entries in the pvProbeLocsEn table. */
2132	uint8_t cbProbeLocsEn;
2133	/** The actual module bit count (corresponds to cbProbeLocsEn). */
2134	uint8_t cBits;
2135	/** Set if this is a Umod, otherwise clear. */
2136	bool fUmod;
2137	/** Explicit alignment padding (paranoia). */
2138	uint8_t abAlignment[ARCH_BITS == 32 ? 1 : 5];
2139
2140	/** The probe locations used for descriptive purposes. */
2141	struct VTGPROBELOC const *paProbeLocsRO;
2142	/** Pointer to the probe location array where the enable flag needs
2143	* flipping. For kernel providers, this will always be SUPDRVPROBELOC,
2144	* while user providers can either be 32-bit or 64-bit. Use
2145	* cbProbeLocsEn to calculate the address of an entry. */
2146	void *pvProbeLocsEn;
2147	/** Pointer to the probe array containing the enabled counts. */
2148	uint32_t *pacProbeEnabled;
2149
2150	/** The ring-0 probe location info for user tracepoint modules.
2151	* This is NULL if fUmod is false. */
2152	PSUPDRVPROBELOC paR0ProbeLocs;
2153	/** The ring-0 probe info for user tracepoint modules.
2154	* This is NULL if fUmod is false. */
2155	PSUPDRVPROBEINFO paR0Probes;
2156
2157	} SUPDRVVDTPROVIDERCORE;
2158	/** Pointer to a tracepoint provider core structure. */
2159	typedef SUPDRVVDTPROVIDERCORE *PSUPDRVVDTPROVIDERCORE;
2160
2161	/** Pointer to a tracer registration record. */
2162	typedef struct SUPDRVTRACERREG const *PCSUPDRVTRACERREG;
2163	/**
2164	* Support driver tracer registration record.
2165	*/
2166	typedef struct SUPDRVTRACERREG
2167	{
2168	/** Magic value (SUPDRVTRACERREG_MAGIC). */
2169	uint32_t u32Magic;
2170	/** Version (SUPDRVTRACERREG_VERSION). */
2171	uint32_t u32Version;
2172
2173	/**
2174	* Fire off a kernel probe.
2175	*
2176	* @param pVtgProbeLoc The probe location record.
2177	* @param uArg0 The first raw probe argument.
2178	* @param uArg1 The second raw probe argument.
2179	* @param uArg2 The third raw probe argument.
2180	* @param uArg3 The fourth raw probe argument.
2181	* @param uArg4 The fifth raw probe argument.
2182	*
2183	* @remarks SUPR0TracerFireProbe will do a tail jump thru this member, so
2184	* no extra stack frames will be added.
2185	* @remarks This does not take a 'this' pointer argument because it doesn't map
2186	* well onto VTG or DTrace.
2187	*
2188	*/
2189	DECLR0CALLBACKMEMBER(void, pfnProbeFireKernel, (struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
2190	uintptr_t uArg3, uintptr_t uArg4));
2191
2192	/**
2193	* Fire off a user-mode probe.
2194	*
2195	* @param pThis Pointer to the registration record.
2196	*
2197	* @param pVtgProbeLoc The probe location record.
2198	* @param pSession The user session.
2199	* @param pCtx The usermode context info.
2200	* @param pVtgHdr The VTG header (read-only).
2201	* @param pProbeLocRO The read-only probe location record .
2202	*/
2203	DECLR0CALLBACKMEMBER(void, pfnProbeFireUser, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, PCSUPDRVTRACERUSRCTX pCtx,
2204	struct VTGOBJHDR const pVtgHdr, struct VTGPROBELOC const pProbeLocRO));
2205
2206	/**
2207	* Opens up the tracer.
2208	*
2209	* @returns VBox status code.
2210	* @param pThis Pointer to the registration record.
2211	* @param pSession The session doing the opening.
2212	* @param uCookie A cookie (magic) unique to the tracer, so it can
2213	* fend off incompatible clients.
2214	* @param uArg Tracer specific argument.
2215	* @param puSessionData Pointer to the session data variable. This must be
2216	* set to a non-zero value on success.
2217	*/
2218	DECLR0CALLBACKMEMBER(int, pfnTracerOpen, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uint32_t uCookie, uintptr_t uArg,
2219	uintptr_t *puSessionData));
2220
2221	/**
2222	* I/O control style tracer communication method.
2223	*
2224	*
2225	* @returns VBox status code.
2226	* @param pThis Pointer to the registration record.
2227	* @param pSession The session.
2228	* @param uSessionData The session data value.
2229	* @param uCmd The tracer specific command.
2230	* @param uArg The tracer command specific argument.
2231	* @param piRetVal The tracer specific return value.
2232	*/
2233	DECLR0CALLBACKMEMBER(int, pfnTracerIoCtl, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uintptr_t uSessionData,
2234	uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal));
2235
2236	/**
2237	* Cleans up data the tracer has associated with a session.
2238	*
2239	* @param pThis Pointer to the registration record.
2240	* @param pSession The session handle.
2241	* @param uSessionData The data assoicated with the session.
2242	*/
2243	DECLR0CALLBACKMEMBER(void, pfnTracerClose, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uintptr_t uSessionData));
2244
2245	/**
2246	* Registers a provider.
2247	*
2248	* @returns VBox status code.
2249	* @param pThis Pointer to the registration record.
2250	* @param pCore The provider core data.
2251	*
2252	* @todo Kernel vs. Userland providers.
2253	*/
2254	DECLR0CALLBACKMEMBER(int, pfnProviderRegister, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2255
2256	/**
2257	* Attempts to deregisters a provider.
2258	*
2259	* @returns VINF_SUCCESS or VERR_TRY_AGAIN. If the latter, the provider
2260	* should be made as harmless as possible before returning as the
2261	* VTG object and associated code will be unloaded upon return.
2262	*
2263	* @param pThis Pointer to the registration record.
2264	* @param pCore The provider core data.
2265	*/
2266	DECLR0CALLBACKMEMBER(int, pfnProviderDeregister, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2267
2268	/**
2269	* Make another attempt at unregister a busy provider.
2270	*
2271	* @returns VINF_SUCCESS or VERR_TRY_AGAIN.
2272	* @param pThis Pointer to the registration record.
2273	* @param pCore The provider core data.
2274	*/
2275	DECLR0CALLBACKMEMBER(int, pfnProviderDeregisterZombie, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2276
2277	/** End marker (SUPDRVTRACERREG_MAGIC). */
2278	uintptr_t uEndMagic;
2279	} SUPDRVTRACERREG;
2280
2281	/** Tracer magic (Kenny Garrett). */
2282	#define SUPDRVTRACERREG_MAGIC UINT32_C(0x19601009)
2283	/** Tracer registration structure version. */
2284	#define SUPDRVTRACERREG_VERSION RT_MAKE_U32(0, 1)
2285
2286	/** Pointer to a trace helper structure. */
2287	typedef struct SUPDRVTRACERHLP const *PCSUPDRVTRACERHLP;
2288	/**
2289	* Helper structure.
2290	*/
2291	typedef struct SUPDRVTRACERHLP
2292	{
2293	/** The structure version (SUPDRVTRACERHLP_VERSION). */
2294	uintptr_t uVersion;
2295
2296	/** @todo ... */
2297
2298	/** End marker (SUPDRVTRACERHLP_VERSION) */
2299	uintptr_t uEndVersion;
2300	} SUPDRVTRACERHLP;
2301	/** Tracer helper structure version. */
2302	#define SUPDRVTRACERHLP_VERSION RT_MAKE_U32(0, 1)
2303
2304	SUPR0DECL(int) SUPR0TracerRegisterImpl(void hMod, PSUPDRVSESSION pSession, PCSUPDRVTRACERREG pReg, PCSUPDRVTRACERHLP ppHlp);
2305	SUPR0DECL(int) SUPR0TracerDeregisterImpl(void *hMod, PSUPDRVSESSION pSession);
2306	SUPR0DECL(int) SUPR0TracerRegisterDrv(PSUPDRVSESSION pSession, struct VTGOBJHDR pVtgHdr, const char pszName);
2307	SUPR0DECL(void) SUPR0TracerDeregisterDrv(PSUPDRVSESSION pSession);
2308	SUPR0DECL(int) SUPR0TracerRegisterModule(void hMod, struct VTGOBJHDR pVtgHdr);
2309	SUPR0DECL(void) SUPR0TracerFireProbe(struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
2310	uintptr_t uArg3, uintptr_t uArg4);
2311	SUPR0DECL(void) SUPR0TracerUmodProbeFire(PSUPDRVSESSION pSession, PSUPDRVTRACERUSRCTX pCtx);
2312	/** @} */
2313
2314
2315	/**
2316	* Service request callback function.
2317	*
2318	* @returns VBox status code.
2319	* @param pSession The caller's session.
2320	* @param uOperation The operation identifier.
2321	* @param u64Arg 64-bit integer argument.
2322	* @param pReqHdr The request header. Input / Output. Optional.
2323	*/
2324	typedef DECLCALLBACK(int) FNSUPR0SERVICEREQHANDLER(PSUPDRVSESSION pSession, uint32_t uOperation,
2325	uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr);
2326	/** Pointer to a FNR0SERVICEREQHANDLER(). */
2327	typedef R0PTRTYPE(FNSUPR0SERVICEREQHANDLER *) PFNSUPR0SERVICEREQHANDLER;
2328
2329
2330	/** @defgroup grp_sup_r0_idc The IDC Interface
2331	* @{
2332	*/
2333
2334	/** The current SUPDRV IDC version.
2335	* This follows the usual high word / low word rules, i.e. high word is the
2336	* major number and it signifies incompatible interface changes. */
2337	#define SUPDRV_IDC_VERSION UINT32_C(0x00010000)
2338
2339	/**
2340	* Inter-Driver Communication Handle.
2341	*/
2342	typedef union SUPDRVIDCHANDLE
2343	{
2344	/** Padding for opaque usage.
2345	* Must be greater or equal in size than the private struct. */
2346	void *apvPadding[4];
2347	#ifdef SUPDRVIDCHANDLEPRIVATE_DECLARED
2348	/** The private view. */
2349	struct SUPDRVIDCHANDLEPRIVATE s;
2350	#endif
2351	} SUPDRVIDCHANDLE;
2352	/** Pointer to a handle. */
2353	typedef SUPDRVIDCHANDLE *PSUPDRVIDCHANDLE;
2354
2355	SUPR0DECL(int) SUPR0IdcOpen(PSUPDRVIDCHANDLE pHandle, uint32_t uReqVersion, uint32_t uMinVersion,
2356	uint32_t puSessionVersion, uint32_t puDriverVersion, uint32_t *puDriverRevision);
2357	SUPR0DECL(int) SUPR0IdcCall(PSUPDRVIDCHANDLE pHandle, uint32_t iReq, void *pvReq, uint32_t cbReq);
2358	SUPR0DECL(int) SUPR0IdcClose(PSUPDRVIDCHANDLE pHandle);
2359	SUPR0DECL(PSUPDRVSESSION) SUPR0IdcGetSession(PSUPDRVIDCHANDLE pHandle);
2360	SUPR0DECL(int) SUPR0IdcComponentRegisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory);
2361	SUPR0DECL(int) SUPR0IdcComponentDeregisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory);
2362
2363	/** @} */
2364
2365	/** @name Ring-0 module entry points.
2366	*
2367	* These can be exported by ring-0 modules SUP are told to load.
2368	*
2369	* @{ */
2370	DECLEXPORT(int) ModuleInit(void *hMod);
2371	DECLEXPORT(void) ModuleTerm(void *hMod);
2372	/** @} */
2373
2374
2375	/** @} */
2376	#endif
2377
2378
2379	/** @name Trust Anchors and Certificates
2380	* @{ */
2381
2382	/**
2383	* Trust anchor table entry (in generated Certificates.cpp).
2384	*/
2385	typedef struct SUPTAENTRY
2386	{
2387	/** Pointer to the raw bytes. */
2388	const unsigned char *pch;
2389	/** Number of bytes. */
2390	unsigned cb;
2391	} SUPTAENTRY;
2392	/** Pointer to a trust anchor table entry. */
2393	typedef SUPTAENTRY const *PCSUPTAENTRY;
2394
2395	/** Macro for simplifying generating the trust anchor tables. */
2396	#define SUPTAENTRY_GEN(a_abTA) { &a_abTA[0], sizeof(a_abTA) }
2397
2398	/** All certificates we know. */
2399	extern SUPTAENTRY const g_aSUPAllTAs[];
2400	/** Number of entries in g_aSUPAllTAs. */
2401	extern unsigned const g_cSUPAllTAs;
2402
2403	/** Software publisher certificate roots (Authenticode). */
2404	extern SUPTAENTRY const g_aSUPSpcRootTAs[];
2405	/** Number of entries in g_aSUPSpcRootTAs. */
2406	extern unsigned const g_cSUPSpcRootTAs;
2407
2408	/** Kernel root certificates used by Windows. */
2409	extern SUPTAENTRY const g_aSUPNtKernelRootTAs[];
2410	/** Number of entries in g_aSUPNtKernelRootTAs. */
2411	extern unsigned const g_cSUPNtKernelRootTAs;
2412
2413	/** Timestamp root certificates trusted by Windows. */
2414	extern SUPTAENTRY const g_aSUPTimestampTAs[];
2415	/** Number of entries in g_aSUPTimestampTAs. */
2416	extern unsigned const g_cSUPTimestampTAs;
2417
2418	/** TAs we trust (the build certificate, Oracle VirtualBox). */
2419	extern SUPTAENTRY const g_aSUPTrustedTAs[];
2420	/** Number of entries in g_aSUPTrustedTAs. */
2421	extern unsigned const g_cSUPTrustedTAs;
2422
2423	/** Supplemental certificates, like cross signing certificates. */
2424	extern SUPTAENTRY const g_aSUPSupplementalTAs[];
2425	/** Number of entries in g_aSUPTrustedTAs. */
2426	extern unsigned const g_cSUPSupplementalTAs;
2427
2428	/** The build certificate. */
2429	extern const unsigned char g_abSUPBuildCert[];
2430	/** The size of the build certificate. */
2431	extern const unsigned g_cbSUPBuildCert;
2432
2433	/** @} */
2434
2435
2436	/** @} */
2437
2438	RT_C_DECLS_END
2439
2440	#endif
2441

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source: vbox/trunk/include/VBox/sup.h@ 71586

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