sup.h@ 87835

Last change on this file since 87835 was 87728, checked in by vboxsync, 4 years ago
SUPDrv,VMMR0,VBoxDDR0,++: More work on wrapper kmods. bugref:9937
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1	/** @file
2	* SUP - Support Library. (HDrv)
3	*/
4
5	/*
6	* Copyright (C) 2006-2020 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_INCLUDED_sup_h
27	#define VBOX_INCLUDED_sup_h
28	#ifndef RT_WITHOUT_PRAGMA_ONCE
29	# pragma once
30	#endif
31
32	#include <VBox/cdefs.h>
33	#include <VBox/types.h>
34	#include <iprt/assert.h>
35	#include <iprt/stdarg.h>
36	#include <iprt/cpuset.h>
37	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
38	# include <iprt/asm-amd64-x86.h>
39	#endif
40
41	RT_C_DECLS_BEGIN
42
43	struct VTGOBJHDR;
44	struct VTGPROBELOC;
45
46
47	/** @defgroup grp_sup The Support Library API
48	* @{
49	*/
50
51	/**
52	* Physical page descriptor.
53	*/
54	#pragma pack(4) /* space is more important. */
55	typedef struct SUPPAGE
56	{
57	/** Physical memory address. */
58	RTHCPHYS Phys;
59	/** Reserved entry for internal use by the caller. */
60	RTHCUINTPTR uReserved;
61	} SUPPAGE;
62	#pragma pack()
63	/** Pointer to a page descriptor. */
64	typedef SUPPAGE *PSUPPAGE;
65	/** Pointer to a const page descriptor. */
66	typedef const SUPPAGE *PCSUPPAGE;
67
68	/**
69	* The paging mode.
70	*
71	* @remarks Users are making assumptions about the order here!
72	*/
73	typedef enum SUPPAGINGMODE
74	{
75	/** The usual invalid entry.
76	* This is returned by SUPR3GetPagingMode() */
77	SUPPAGINGMODE_INVALID = 0,
78	/** Normal 32-bit paging, no global pages */
79	SUPPAGINGMODE_32_BIT,
80	/** Normal 32-bit paging with global pages. */
81	SUPPAGINGMODE_32_BIT_GLOBAL,
82	/** PAE mode, no global pages, no NX. */
83	SUPPAGINGMODE_PAE,
84	/** PAE mode with global pages. */
85	SUPPAGINGMODE_PAE_GLOBAL,
86	/** PAE mode with NX, no global pages. */
87	SUPPAGINGMODE_PAE_NX,
88	/** PAE mode with global pages and NX. */
89	SUPPAGINGMODE_PAE_GLOBAL_NX,
90	/** AMD64 mode, no global pages. */
91	SUPPAGINGMODE_AMD64,
92	/** AMD64 mode with global pages, no NX. */
93	SUPPAGINGMODE_AMD64_GLOBAL,
94	/** AMD64 mode with NX, no global pages. */
95	SUPPAGINGMODE_AMD64_NX,
96	/** AMD64 mode with global pages and NX. */
97	SUPPAGINGMODE_AMD64_GLOBAL_NX
98	} SUPPAGINGMODE;
99
100
101	/** @name Flags returned by SUPR0GetKernelFeatures().
102	* @{
103	*/
104	/** GDT is read-only. */
105	#define SUPKERNELFEATURES_GDT_READ_ONLY RT_BIT(0)
106	/** SMAP is possibly enabled. */
107	#define SUPKERNELFEATURES_SMAP RT_BIT(1)
108	/** GDT is read-only but the writable GDT can be fetched by SUPR0GetCurrentGdtRw(). */
109	#define SUPKERNELFEATURES_GDT_NEED_WRITABLE RT_BIT(2)
110	/** @} */
111
112	/**
113	* An VT-x control MSR.
114	* @sa VMXCTLSMSR.
115	*/
116	typedef union SUPVMXCTLSMSR
117	{
118	uint64_t u;
119	struct
120	{
121	/** Bits set here _must_ be set in the corresponding VM-execution controls. */
122	uint32_t allowed0;
123	/** Bits cleared here _must_ be cleared in the corresponding VM-execution controls. */
124	uint32_t allowed1;
125	} n;
126	} SUPVMXCTLSMSR;
127	AssertCompileSize(SUPVMXCTLSMSR, sizeof(uint64_t));
128
129	/**
130	* Hardware-virtualization MSRs.
131	*/
132	typedef struct SUPHWVIRTMSRS
133	{
134	union
135	{
136	/** @sa VMXMSRS */
137	struct
138	{
139	uint64_t u64FeatCtrl;
140	uint64_t u64Basic;
141	/** Pin-based VM-execution controls. */
142	SUPVMXCTLSMSR PinCtls;
143	/** Processor-based VM-execution controls. */
144	SUPVMXCTLSMSR ProcCtls;
145	/** Secondary processor-based VM-execution controls. */
146	SUPVMXCTLSMSR ProcCtls2;
147	/** VM-exit controls. */
148	SUPVMXCTLSMSR ExitCtls;
149	/** VM-entry controls. */
150	SUPVMXCTLSMSR EntryCtls;
151	/** True pin-based VM-execution controls. */
152	SUPVMXCTLSMSR TruePinCtls;
153	/** True processor-based VM-execution controls. */
154	SUPVMXCTLSMSR TrueProcCtls;
155	/** True VM-entry controls. */
156	SUPVMXCTLSMSR TrueEntryCtls;
157	/** True VM-exit controls. */
158	SUPVMXCTLSMSR TrueExitCtls;
159	uint64_t u64Misc;
160	uint64_t u64Cr0Fixed0;
161	uint64_t u64Cr0Fixed1;
162	uint64_t u64Cr4Fixed0;
163	uint64_t u64Cr4Fixed1;
164	uint64_t u64VmcsEnum;
165	uint64_t u64VmFunc;
166	uint64_t u64EptVpidCaps;
167	uint64_t au64Reserved[9];
168	} vmx;
169	struct
170	{
171	uint64_t u64MsrHwcr;
172	uint64_t u64MsrSmmAddr;
173	uint64_t u64MsrSmmMask;
174	uint64_t u64Padding[25];
175	} svm;
176	} u;
177	} SUPHWVIRTMSRS;
178	AssertCompileSize(SUPHWVIRTMSRS, 224);
179	/** Pointer to a hardware-virtualization MSRs struct. */
180	typedef SUPHWVIRTMSRS *PSUPHWVIRTMSRS;
181	/** Pointer to a hardware-virtualization MSRs struct. */
182	typedef const SUPHWVIRTMSRS *PCSUPHWVIRTMSRS;
183
184
185	/**
186	* Usermode probe context information.
187	*/
188	typedef struct SUPDRVTRACERUSRCTX
189	{
190	/** The probe ID from the VTG location record. */
191	uint32_t idProbe;
192	/** 32 if X86, 64 if AMD64. */
193	uint8_t cBits;
194	/** Reserved padding. */
195	uint8_t abReserved[3];
196	/** Data which format is dictated by the cBits member. */
197	union
198	{
199	/** X86 context info. */
200	struct
201	{
202	uint32_t uVtgProbeLoc; /*< Location record address. /
203	uint32_t aArgs[20]; /*< Raw arguments. /
204	uint32_t eip;
205	uint32_t eflags;
206	uint32_t eax;
207	uint32_t ecx;
208	uint32_t edx;
209	uint32_t ebx;
210	uint32_t esp;
211	uint32_t ebp;
212	uint32_t esi;
213	uint32_t edi;
214	uint16_t cs;
215	uint16_t ss;
216	uint16_t ds;
217	uint16_t es;
218	uint16_t fs;
219	uint16_t gs;
220	} X86;
221
222	/** AMD64 context info. */
223	struct
224	{
225	uint64_t uVtgProbeLoc; /*< Location record address. /
226	uint64_t aArgs[10]; /*< Raw arguments. /
227	uint64_t rip;
228	uint64_t rflags;
229	uint64_t rax;
230	uint64_t rcx;
231	uint64_t rdx;
232	uint64_t rbx;
233	uint64_t rsp;
234	uint64_t rbp;
235	uint64_t rsi;
236	uint64_t rdi;
237	uint64_t r8;
238	uint64_t r9;
239	uint64_t r10;
240	uint64_t r11;
241	uint64_t r12;
242	uint64_t r13;
243	uint64_t r14;
244	uint64_t r15;
245	} Amd64;
246	} u;
247	} SUPDRVTRACERUSRCTX;
248	/** Pointer to the usermode probe context information. */
249	typedef SUPDRVTRACERUSRCTX *PSUPDRVTRACERUSRCTX;
250	/** Pointer to the const usermode probe context information. */
251	typedef SUPDRVTRACERUSRCTX const *PCSUPDRVTRACERUSRCTX;
252
253	/**
254	* The result of a modification operation (SUPMSRPROBEROP_MODIFY or
255	* SUPMSRPROBEROP_MODIFY_FASTER).
256	*/
257	typedef struct SUPMSRPROBERMODIFYRESULT
258	{
259	/** The MSR value prior to the modifications. Valid if fBeforeGp is false */
260	uint64_t uBefore;
261	/** The value that was written. Valid if fBeforeGp is false */
262	uint64_t uWritten;
263	/** The MSR value after the modifications. Valid if AfterGp is false. */
264	uint64_t uAfter;
265	/** Set if we GPed reading the MSR before the modification. */
266	bool fBeforeGp;
267	/** Set if we GPed while trying to write the modified value.
268	* This is set when fBeforeGp is true. */
269	bool fModifyGp;
270	/** Set if we GPed while trying to read the MSR after the modification.
271	* This is set when fBeforeGp is true. */
272	bool fAfterGp;
273	/** Set if we GPed while trying to restore the MSR after the modification.
274	* This is set when fBeforeGp is true. */
275	bool fRestoreGp;
276	/** Structure size alignment padding. */
277	bool afReserved[4];
278	} SUPMSRPROBERMODIFYRESULT, *PSUPMSRPROBERMODIFYRESULT;
279
280
281	/**
282	* The CPU state.
283	*/
284	typedef enum SUPGIPCPUSTATE
285	{
286	/** Invalid CPU state / unused CPU entry. */
287	SUPGIPCPUSTATE_INVALID = 0,
288	/** The CPU is not present. */
289	SUPGIPCPUSTATE_ABSENT,
290	/** The CPU is offline. */
291	SUPGIPCPUSTATE_OFFLINE,
292	/** The CPU is online. */
293	SUPGIPCPUSTATE_ONLINE,
294	/** Force 32-bit enum type. */
295	SUPGIPCPUSTATE_32_BIT_HACK = 0x7fffffff
296	} SUPGIPCPUSTATE;
297
298	/**
299	* Per CPU data.
300	*/
301	typedef struct SUPGIPCPU
302	{
303	/** Update transaction number.
304	* This number is incremented at the start and end of each update. It follows
305	* thusly that odd numbers indicates update in progress, while even numbers
306	* indicate stable data. Use this to make sure that the data items you fetch
307	* are consistent. */
308	volatile uint32_t u32TransactionId;
309	/** The interval in TSC ticks between two NanoTS updates.
310	* This is the average interval over the last 2, 4 or 8 updates + a little slack.
311	* The slack makes the time go a tiny tiny bit slower and extends the interval enough
312	* to avoid ending up with too many 1ns increments. */
313	volatile uint32_t u32UpdateIntervalTSC;
314	/** Current nanosecond timestamp. */
315	volatile uint64_t u64NanoTS;
316	/** The TSC at the time of u64NanoTS. */
317	volatile uint64_t u64TSC;
318	/** Current CPU Frequency. */
319	volatile uint64_t u64CpuHz;
320	/** The TSC delta with reference to the master TSC, subtract from RDTSC. */
321	volatile int64_t i64TSCDelta;
322	/** Number of errors during updating.
323	* Typical errors are under/overflows. */
324	volatile uint32_t cErrors;
325	/** Index of the head item in au32TSCHistory. */
326	volatile uint32_t iTSCHistoryHead;
327	/** Array of recent TSC interval deltas.
328	* The most recent item is at index iTSCHistoryHead.
329	* This history is used to calculate u32UpdateIntervalTSC.
330	*/
331	volatile uint32_t au32TSCHistory[8];
332	/** The interval between the last two NanoTS updates. (experiment for now) */
333	volatile uint32_t u32PrevUpdateIntervalNS;
334
335	/** Reserved for future per processor data. */
336	volatile uint32_t u32Reserved;
337	/** The TSC value read while doing TSC delta measurements across CPUs. */
338	volatile uint64_t u64TSCSample;
339	/** Reserved for future per processor data. */
340	volatile uint32_t au32Reserved1[3];
341
342	/** The CPU state. */
343	SUPGIPCPUSTATE volatile enmState;
344	/** The host CPU ID of this CPU (the SUPGIPCPU is indexed by APIC ID). */
345	RTCPUID idCpu;
346	/** The CPU set index of this CPU. */
347	int16_t iCpuSet;
348	/** CPU group number (always zero, except on windows). */
349	uint16_t iCpuGroup;
350	/** CPU group member number (same as iCpuSet, except on windows). */
351	uint16_t iCpuGroupMember;
352	/** The APIC ID of this CPU. */
353	uint16_t idApic;
354	/** @todo Add topology/NUMA info. */
355	uint32_t iReservedForNumaNode;
356	} SUPGIPCPU;
357	AssertCompileSize(RTCPUID, 4);
358	AssertCompileSize(SUPGIPCPU, 128);
359	AssertCompileMemberAlignment(SUPGIPCPU, u64NanoTS, 8);
360	AssertCompileMemberAlignment(SUPGIPCPU, u64TSC, 8);
361	AssertCompileMemberAlignment(SUPGIPCPU, u64TSCSample, 8);
362
363	/** Pointer to per cpu data.
364	* @remark there is no const version of this typedef, see g_pSUPGlobalInfoPage for details. */
365	typedef SUPGIPCPU *PSUPGIPCPU;
366
367	/**
368	* CPU group information.
369	* @remarks Windows only.
370	*/
371	typedef struct SUPGIPCPUGROUP
372	{
373	/** Current number of CPUs in this group. */
374	uint16_t volatile cMembers;
375	/** Maximum number of CPUs in the group. */
376	uint16_t cMaxMembers;
377	/** The CPU set index of the members. This table has cMaxMembers entries.
378	* @note For various reasons, entries from cMembers and up to cMaxMembers are
379	* may change as the host OS does set dynamic assignments during CPU
380	* hotplugging. */
381	int16_t aiCpuSetIdxs[1];
382	} SUPGIPCPUGROUP;
383	/** Pointer to a GIP CPU group structure. */
384	typedef SUPGIPCPUGROUP *PSUPGIPCPUGROUP;
385	/** Pointer to a const GIP CPU group structure. */
386	typedef SUPGIPCPUGROUP const *PCSUPGIPCPUGROUP;
387
388	/**
389	* The rules concerning the applicability of SUPGIPCPU::i64TscDelta.
390	*/
391	typedef enum SUPGIPUSETSCDELTA
392	{
393	/** Value for SUPGIPMODE_ASYNC_TSC. */
394	SUPGIPUSETSCDELTA_NOT_APPLICABLE = 0,
395	/** The OS specific part of SUPDrv (or the user) claims the TSC is as
396	* good as zero. */
397	SUPGIPUSETSCDELTA_ZERO_CLAIMED,
398	/** The differences in RDTSC output between the CPUs/cores/threads should
399	* be considered zero for all practical purposes. */
400	SUPGIPUSETSCDELTA_PRACTICALLY_ZERO,
401	/** The differences in RDTSC output between the CPUs/cores/threads are a few
402	* hundred ticks or less. (Probably not worth calling ASMGetApicId two times
403	* just to apply deltas.) */
404	SUPGIPUSETSCDELTA_ROUGHLY_ZERO,
405	/** Significant differences in RDTSC output between the CPUs/cores/threads,
406	* deltas must be applied. */
407	SUPGIPUSETSCDELTA_NOT_ZERO,
408	/** End of valid values (exclusive). */
409	SUPGIPUSETSCDELTA_END,
410	/** Make sure the type is 32-bit sized. */
411	SUPGIPUSETSCDELTA_32BIT_HACK = 0x7fffffff
412	} SUPGIPUSETSCDELTA;
413
414
415	/** @name SUPGIPGETCPU_XXX - methods that aCPUs can be indexed.
416	*
417	* @note Linux offers information via selector 0x78, and Windows via selector
418	* 0x53. But since they both support RDTSCP as well, and because most
419	* CPUs now have RDTSCP, we prefer it over LSL. We can implement more
420	* alternatives if it becomes necessary.
421	*
422	* @{
423	*/
424	/** Use ASMGetApicId (or equivalent) and translate the result via
425	* aiCpuFromApicId. */
426	#define SUPGIPGETCPU_APIC_ID RT_BIT_32(0)
427	/** Use RDTSCP and translate the first RTCPUSET_MAX_CPUS of ECX via
428	* aiCpuFromCpuSetIdx.
429	*
430	* Linux stores the RTMpCpuId() value in ECX[11:0] and NUMA node number in
431	* ECX[12:31]. Solaris only stores RTMpCpuId() in ECX. On both systems
432	* RTMpCpuId() == RTMpCpuIdToSetIndex(RTMpCpuId()). RTCPUSET_MAX_CPUS is
433	* currently 64, 256 or 1024 in size, which lower than
434	* 4096, so there shouldn't be any range issues. */
435	#define SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS RT_BIT_32(1)
436	/** Subtract the max IDT size from IDTR.LIMIT, extract the
437	* first RTCPUSET_MAX_CPUS and translate it via aiCpuFromCpuSetIdx.
438	*
439	* Darwin stores the RTMpCpuId() (== RTMpCpuIdToSetIndex(RTMpCpuId()))
440	* value in the IDT limit. The masking is a precaution against what linux
441	* does with RDTSCP. */
442	#define SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS RT_BIT_32(2)
443	/** Windows specific RDTSCP variant, where CH gives you the group and CL gives
444	* you the CPU number within that group.
445	*
446	* Use SUPGLOBALINFOPAGE::aidFirstCpuFromCpuGroup to get the group base CPU set
447	* index, then translate the sum of thru aiCpuFromCpuSetIdx to find the aCPUs
448	* entry.
449	*
450	* @note The group number is actually 16-bit wide (ECX[23:8]), but we simplify
451	* it since we only support 256 CPUs/groups at the moment.
452	*/
453	#define SUPGIPGETCPU_RDTSCP_GROUP_IN_CH_NUMBER_IN_CL RT_BIT_32(3)
454	/** Can use CPUID[0xb].EDX and translate the result via aiCpuFromApicId. */
455	#define SUPGIPGETCPU_APIC_ID_EXT_0B RT_BIT_32(4)
456	/** Can use CPUID[0x8000001e].EAX and translate the result via aiCpuFromApicId. */
457	#define SUPGIPGETCPU_APIC_ID_EXT_8000001E RT_BIT_32(5)
458	/** @} */
459
460	/** @def SUPGIP_MAX_CPU_GROUPS
461	* Maximum number of CPU groups. */
462	#if RTCPUSET_MAX_CPUS >= 256
463	# define SUPGIP_MAX_CPU_GROUPS 256
464	#else
465	# define SUPGIP_MAX_CPU_GROUPS RTCPUSET_MAX_CPUS
466	#endif
467
468	/**
469	* Global Information Page.
470	*
471	* This page contains useful information and can be mapped into any
472	* process or VM. It can be accessed thru the g_pSUPGlobalInfoPage
473	* pointer when a session is open.
474	*/
475	typedef struct SUPGLOBALINFOPAGE
476	{
477	/** Magic (SUPGLOBALINFOPAGE_MAGIC). */
478	uint32_t u32Magic;
479	/** The GIP version. */
480	uint32_t u32Version;
481
482	/** The GIP update mode, see SUPGIPMODE. */
483	uint32_t u32Mode;
484	/** The number of entries in the CPU table.
485	* (This can work as RTMpGetArraySize().) */
486	uint16_t cCpus;
487	/** The size of the GIP in pages. */
488	uint16_t cPages;
489	/** The update frequency of the of the NanoTS. */
490	volatile uint32_t u32UpdateHz;
491	/** The update interval in nanoseconds. (10^9 / u32UpdateHz) */
492	volatile uint32_t u32UpdateIntervalNS;
493	/** The timestamp of the last time we update the update frequency. */
494	volatile uint64_t u64NanoTSLastUpdateHz;
495	/** The TSC frequency of the system. */
496	uint64_t u64CpuHz;
497	/** The number of CPUs that are online. */
498	volatile uint16_t cOnlineCpus;
499	/** The number of CPUs present in the system. */
500	volatile uint16_t cPresentCpus;
501	/** The highest number of CPUs possible. */
502	uint16_t cPossibleCpus;
503	/** The highest number of CPU groups possible. */
504	uint16_t cPossibleCpuGroups;
505	/** The max CPU ID (RTMpGetMaxCpuId). */
506	RTCPUID idCpuMax;
507	/** The applicability of SUPGIPCPU::i64TscDelta. */
508	SUPGIPUSETSCDELTA enmUseTscDelta;
509	/** Mask of SUPGIPGETCPU_XXX values that indicates different ways that aCPU
510	* can be accessed from ring-3 and raw-mode context. */
511	uint32_t fGetGipCpu;
512	/** GIP flags, see SUPGIP_FLAGS_XXX. */
513	volatile uint32_t fFlags;
514	/** The set of online CPUs. */
515	RTCPUSET OnlineCpuSet;
516	#if RTCPUSET_MAX_CPUS < 1024
517	uint64_t abOnlineCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
518	#endif
519	/** The set of present CPUs. */
520	RTCPUSET PresentCpuSet;
521	#if RTCPUSET_MAX_CPUS < 1024
522	uint64_t abPresentCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
523	#endif
524	/** The set of possible CPUs. */
525	RTCPUSET PossibleCpuSet;
526	#if RTCPUSET_MAX_CPUS < 1024
527	uint64_t abPossibleCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
528	#endif
529
530	/** Padding / reserved space for future data. */
531	uint32_t au32Padding1[48];
532
533	/** Table indexed by the CPU APIC ID to get the CPU table index. */
534	uint16_t aiCpuFromApicId[4096];
535	/** CPU set index to CPU table index. */
536	uint16_t aiCpuFromCpuSetIdx[1024];
537	/** Table indexed by CPU group to containing offsets to SUPGIPCPUGROUP
538	* structures, invalid entries are set to UINT32_MAX. The offsets are relative
539	* to the start of this structure.
540	* @note Windows only. The other hosts sets all entries to UINT32_MAX! */
541	uint32_t aoffCpuGroup[SUPGIP_MAX_CPU_GROUPS];
542
543	/** Array of per-cpu data.
544	* This is index by ApicId via the aiCpuFromApicId table.
545	*
546	* The clock and frequency information is updated for all CPUs if @c u32Mode
547	* is SUPGIPMODE_ASYNC_TSC. If @c u32Mode is SUPGIPMODE_SYNC_TSC only the first
548	* entry is updated. If @c u32Mode is SUPGIPMODE_SYNC_TSC the TSC frequency in
549	* @c u64CpuHz is copied to all CPUs. */
550	SUPGIPCPU aCPUs[1];
551	} SUPGLOBALINFOPAGE;
552	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, u64NanoTSLastUpdateHz, 8);
553	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, OnlineCpuSet, 64);
554	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, PresentCpuSet, 64);
555	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, PossibleCpuSet, 64);
556	#if defined(RT_ARCH_SPARC) \|\| defined(RT_ARCH_SPARC64) /* ?? needed ?? */
557	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 32);
558	#else
559	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 128);
560	#endif
561
562	/** Pointer to the global info page.
563	* @remark there is no const version of this typedef, see g_pSUPGlobalInfoPage for details. */
564	typedef SUPGLOBALINFOPAGE *PSUPGLOBALINFOPAGE;
565
566
567	/** The value of the SUPGLOBALINFOPAGE::u32Magic field. (Soryo Fuyumi) */
568	#define SUPGLOBALINFOPAGE_MAGIC 0x19590106
569	/** The GIP version.
570	* Upper 16 bits is the major version. Major version is only changed with
571	* incompatible changes in the GIP. */
572	#define SUPGLOBALINFOPAGE_VERSION 0x000a0000
573
574	/**
575	* SUPGLOBALINFOPAGE::u32Mode values.
576	*/
577	typedef enum SUPGIPMODE
578	{
579	/** The usual invalid null entry. */
580	SUPGIPMODE_INVALID = 0,
581	/** The TSC of the cores and cpus in the system is in sync. */
582	SUPGIPMODE_SYNC_TSC,
583	/** Each core has it's own TSC. */
584	SUPGIPMODE_ASYNC_TSC,
585	/** The TSC of the cores are non-stop and have a constant frequency. */
586	SUPGIPMODE_INVARIANT_TSC,
587	/** End of valid GIP mode values (exclusive). */
588	SUPGIPMODE_END,
589	/** The usual 32-bit hack. */
590	SUPGIPMODE_32BIT_HACK = 0x7fffffff
591	} SUPGIPMODE;
592
593	/** Pointer to the Global Information Page.
594	*
595	* This pointer is valid as long as SUPLib has a open session. Anyone using
596	* the page must treat this pointer as highly volatile and not trust it beyond
597	* one transaction.
598	*
599	* @remark The GIP page is read-only to everyone but the support driver and
600	* is actually mapped read only everywhere but in ring-0. However
601	* it is not marked 'const' as this might confuse compilers into
602	* thinking that values doesn't change even if members are marked
603	* as volatile. Thus, there is no PCSUPGLOBALINFOPAGE type.
604	*/
605	#if defined(IN_SUP_R3) \|\| defined(IN_SUP_R0)
606	extern DECLEXPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
607
608	#elif !defined(IN_RING0) \|\| defined(RT_OS_WINDOWS) \|\| defined(RT_OS_SOLARIS) \|\| defined(VBOX_WITH_KMOD_WRAPPED_R0_MODS)
609	extern DECLIMPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
610
611	#else /* IN_RING0 && !RT_OS_WINDOWS */
612	# if !defined(__GNUC__) \|\| defined(RT_OS_DARWIN) \|\| !defined(RT_ARCH_AMD64)
613	# define g_pSUPGlobalInfoPage (&g_SUPGlobalInfoPage)
614	# else
615	# define g_pSUPGlobalInfoPage (SUPGetGIPHlp())
616	/** Workaround for ELF+GCC problem on 64-bit hosts.
617	* (GCC emits a mov with a R_X86_64_32 reloc, we need R_X86_64_64.) */
618	DECLINLINE(PSUPGLOBALINFOPAGE) SUPGetGIPHlp(void)
619	{
620	PSUPGLOBALINFOPAGE pGIP;
621	__asm__ __volatile__ ("movabs $g_SUPGlobalInfoPage,%0\n\t"
622	: "=a" (pGIP));
623	return pGIP;
624	}
625	# endif
626	/** The GIP.
627	* We save a level of indirection by exporting the GIP instead of a variable
628	* pointing to it. */
629	extern DECLIMPORT(SUPGLOBALINFOPAGE) g_SUPGlobalInfoPage;
630	#endif
631
632	/**
633	* Gets the GIP pointer.
634	*
635	* @returns Pointer to the GIP or NULL.
636	*/
637	SUPDECL(PSUPGLOBALINFOPAGE) SUPGetGIP(void);
638
639	/** @name SUPGIP_FLAGS_XXX - SUPR3GipSetFlags flags.
640	* @{ */
641	/** Enable GIP test mode. */
642	#define SUPGIP_FLAGS_TESTING_ENABLE RT_BIT_32(0)
643	/** Valid mask of flags that can be set through the ioctl. */
644	#define SUPGIP_FLAGS_VALID_MASK RT_BIT_32(0)
645	/** GIP test mode needs to be checked (e.g. when enabled or being disabled). */
646	#define SUPGIP_FLAGS_TESTING RT_BIT_32(24)
647	/** Prepare to start GIP test mode. */
648	#define SUPGIP_FLAGS_TESTING_START RT_BIT_32(25)
649	/** Prepare to stop GIP test mode. */
650	#define SUPGIP_FLAGS_TESTING_STOP RT_BIT_32(26)
651	/** @} */
652
653	/** @internal */
654	SUPDECL(uint64_t) SUPGetCpuHzFromGipForAsyncMode(PSUPGLOBALINFOPAGE pGip);
655	SUPDECL(bool) SUPIsTscFreqCompatible(uint64_t uCpuHz, uint64_t *puGipCpuHz, bool fRelax);
656	SUPDECL(bool) SUPIsTscFreqCompatibleEx(uint64_t uBaseCpuHz, uint64_t uCpuHz, bool fRelax);
657
658
659	/**
660	* Gets the TSC frequency of the calling CPU.
661	*
662	* @returns TSC frequency, UINT64_MAX on failure (asserted).
663	* @param pGip The GIP pointer.
664	*/
665	DECLINLINE(uint64_t) SUPGetCpuHzFromGip(PSUPGLOBALINFOPAGE pGip)
666	{
667	if (RT_LIKELY( pGip
668	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
669	{
670	switch (pGip->u32Mode)
671	{
672	case SUPGIPMODE_INVARIANT_TSC:
673	case SUPGIPMODE_SYNC_TSC:
674	return pGip->aCPUs[0].u64CpuHz;
675	case SUPGIPMODE_ASYNC_TSC:
676	return SUPGetCpuHzFromGipForAsyncMode(pGip);
677	default: break; /* shut up gcc */
678	}
679	}
680	AssertFailed();
681	return UINT64_MAX;
682	}
683
684
685	/**
686	* Gets the TSC frequency of the specified CPU.
687	*
688	* @returns TSC frequency, UINT64_MAX on failure (asserted).
689	* @param pGip The GIP pointer.
690	* @param iCpuSet The CPU set index of the CPU in question.
691	*/
692	DECLINLINE(uint64_t) SUPGetCpuHzFromGipBySetIndex(PSUPGLOBALINFOPAGE pGip, uint32_t iCpuSet)
693	{
694	if (RT_LIKELY( pGip
695	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
696	{
697	switch (pGip->u32Mode)
698	{
699	case SUPGIPMODE_INVARIANT_TSC:
700	case SUPGIPMODE_SYNC_TSC:
701	return pGip->aCPUs[0].u64CpuHz;
702	case SUPGIPMODE_ASYNC_TSC:
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	return pGip->aCPUs[iCpu].u64CpuHz;
708	}
709	break;
710	default: break; /* shut up gcc */
711	}
712	}
713	AssertFailed();
714	return UINT64_MAX;
715	}
716
717
718	/**
719	* Gets the pointer to the per CPU data for a CPU given by its set index.
720	*
721	* @returns Pointer to the corresponding per CPU structure, or NULL if invalid.
722	* @param pGip The GIP pointer.
723	* @param iCpuSet The CPU set index of the CPU which we want.
724	*/
725	DECLINLINE(PSUPGIPCPU) SUPGetGipCpuBySetIndex(PSUPGLOBALINFOPAGE pGip, uint32_t iCpuSet)
726	{
727	if (RT_LIKELY( pGip
728	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
729	{
730	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
731	{
732	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
733	if (RT_LIKELY(iCpu < pGip->cCpus))
734	return &pGip->aCPUs[iCpu];
735	}
736	}
737	return NULL;
738	}
739
740
741	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
742
743	/** @internal */
744	SUPDECL(uint64_t) SUPReadTscWithDelta(PSUPGLOBALINFOPAGE pGip);
745
746	/**
747	* Read the host TSC value and applies the TSC delta if appropriate.
748	*
749	* @returns the TSC value.
750	* @remarks Requires GIP to be initialized and valid.
751	*/
752	DECLINLINE(uint64_t) SUPReadTsc(void)
753	{
754	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
755	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
756	return ASMReadTSC();
757	return SUPReadTscWithDelta(pGip);
758	}
759
760	#endif /* X86 \|\| AMD64 */
761
762	/** @internal */
763	SUPDECL(int64_t) SUPGetTscDeltaSlow(PSUPGLOBALINFOPAGE pGip);
764
765	/**
766	* Gets the TSC delta for the current CPU.
767	*
768	* @returns The TSC delta value (will not return the special INT64_MAX value).
769	* @remarks Requires GIP to be initialized and valid.
770	*/
771	DECLINLINE(int64_t) SUPGetTscDelta(void)
772	{
773	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
774	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
775	return 0;
776	return SUPGetTscDeltaSlow(pGip);
777	}
778
779
780	/**
781	* Gets the TSC delta for a given CPU.
782	*
783	* @returns The TSC delta value (will not return the special INT64_MAX value).
784	* @param iCpuSet The CPU set index of the CPU which TSC delta we want.
785	* @remarks Requires GIP to be initialized and valid.
786	*/
787	DECLINLINE(int64_t) SUPGetTscDeltaByCpuSetIndex(uint32_t iCpuSet)
788	{
789	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
790	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
791	return 0;
792	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
793	{
794	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
795	if (RT_LIKELY(iCpu < pGip->cCpus))
796	{
797	int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta;
798	if (iTscDelta != INT64_MAX)
799	return iTscDelta;
800	}
801	}
802	AssertFailed();
803	return 0;
804	}
805
806
807	/**
808	* Checks if the TSC delta is available for a given CPU (if TSC-deltas are
809	* relevant).
810	*
811	* @returns true if it's okay to read the TSC, false otherwise.
812	*
813	* @param iCpuSet The CPU set index of the CPU which TSC delta we check.
814	* @remarks Requires GIP to be initialized and valid.
815	*/
816	DECLINLINE(bool) SUPIsTscDeltaAvailableForCpuSetIndex(uint32_t iCpuSet)
817	{
818	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
819	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
820	return true;
821	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
822	{
823	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
824	if (RT_LIKELY(iCpu < pGip->cCpus))
825	{
826	int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta;
827	if (iTscDelta != INT64_MAX)
828	return true;
829	}
830	}
831	return false;
832	}
833
834
835	/**
836	* Gets the descriptive GIP mode name.
837	*
838	* @returns The name.
839	* @param pGip Pointer to the GIP.
840	*/
841	DECLINLINE(const char *) SUPGetGIPModeName(PSUPGLOBALINFOPAGE pGip)
842	{
843	AssertReturn(pGip, NULL);
844	switch (pGip->u32Mode)
845	{
846	case SUPGIPMODE_INVARIANT_TSC: return "Invariant";
847	case SUPGIPMODE_SYNC_TSC: return "Synchronous";
848	case SUPGIPMODE_ASYNC_TSC: return "Asynchronous";
849	case SUPGIPMODE_INVALID: return "Invalid";
850	default: return "???";
851	}
852	}
853
854
855	/**
856	* Gets the descriptive TSC-delta enum name.
857	*
858	* @returns The name.
859	* @param pGip Pointer to the GIP.
860	*/
861	DECLINLINE(const char *) SUPGetGIPTscDeltaModeName(PSUPGLOBALINFOPAGE pGip)
862	{
863	AssertReturn(pGip, NULL);
864	switch (pGip->enmUseTscDelta)
865	{
866	case SUPGIPUSETSCDELTA_NOT_APPLICABLE: return "Not Applicable";
867	case SUPGIPUSETSCDELTA_ZERO_CLAIMED: return "Zero Claimed";
868	case SUPGIPUSETSCDELTA_PRACTICALLY_ZERO: return "Practically Zero";
869	case SUPGIPUSETSCDELTA_ROUGHLY_ZERO: return "Roughly Zero";
870	case SUPGIPUSETSCDELTA_NOT_ZERO: return "Not Zero";
871	default: return "???";
872	}
873	}
874
875
876	/**
877	* Request for generic VMMR0Entry calls.
878	*/
879	typedef struct SUPVMMR0REQHDR
880	{
881	/** The magic. (SUPVMMR0REQHDR_MAGIC) */
882	uint32_t u32Magic;
883	/** The size of the request. */
884	uint32_t cbReq;
885	} SUPVMMR0REQHDR;
886	/** Pointer to a ring-0 request header. */
887	typedef SUPVMMR0REQHDR *PSUPVMMR0REQHDR;
888	/** the SUPVMMR0REQHDR::u32Magic value (Ethan Iverson - The Bad Plus). */
889	#define SUPVMMR0REQHDR_MAGIC UINT32_C(0x19730211)
890
891
892	/** For the fast ioctl path.
893	* @{
894	*/
895	/** @see VMMR0_DO_HM_RUN. */
896	#define SUP_VMMR0_DO_HM_RUN 0
897	/** @see VMMR0_DO_NEM_RUN */
898	#define SUP_VMMR0_DO_NEM_RUN 1
899	/** @see VMMR0_DO_NOP */
900	#define SUP_VMMR0_DO_NOP 2
901	/** @} */
902
903	/** SUPR3QueryVTCaps capability flags.
904	* @{
905	*/
906	/** AMD-V support. */
907	#define SUPVTCAPS_AMD_V RT_BIT(0)
908	/** VT-x support. */
909	#define SUPVTCAPS_VT_X RT_BIT(1)
910	/** Nested paging is supported. */
911	#define SUPVTCAPS_NESTED_PAGING RT_BIT(2)
912	/** VT-x: Unrestricted guest execution is supported. */
913	#define SUPVTCAPS_VTX_UNRESTRICTED_GUEST RT_BIT(3)
914	/** VT-x: VMCS shadowing is supported. */
915	#define SUPVTCAPS_VTX_VMCS_SHADOWING RT_BIT(4)
916	/** AMD-V: Virtualized VMSAVE/VMLOAD is supported. */
917	#define SUPVTCAPS_AMDV_VIRT_VMSAVE_VMLOAD RT_BIT(5)
918	/** @} */
919
920	/**
921	* Request for generic FNSUPR0SERVICEREQHANDLER calls.
922	*/
923	typedef struct SUPR0SERVICEREQHDR
924	{
925	/** The magic. (SUPR0SERVICEREQHDR_MAGIC) */
926	uint32_t u32Magic;
927	/** The size of the request. */
928	uint32_t cbReq;
929	} SUPR0SERVICEREQHDR;
930	/** Pointer to a ring-0 service request header. */
931	typedef SUPR0SERVICEREQHDR *PSUPR0SERVICEREQHDR;
932	/** the SUPVMMR0REQHDR::u32Magic value (Esbjoern Svensson - E.S.P.). */
933	#define SUPR0SERVICEREQHDR_MAGIC UINT32_C(0x19640416)
934
935
936	/**
937	* Creates a single release event semaphore.
938	*
939	* @returns VBox status code.
940	* @param pSession The session handle of the caller.
941	* @param phEvent Where to return the handle to the event semaphore.
942	*/
943	SUPDECL(int) SUPSemEventCreate(PSUPDRVSESSION pSession, PSUPSEMEVENT phEvent);
944
945	/**
946	* Closes a single release event semaphore handle.
947	*
948	* @returns VBox status code.
949	* @retval VINF_OBJECT_DESTROYED if the semaphore was destroyed.
950	* @retval VINF_SUCCESS if the handle was successfully closed but the semaphore
951	* object remained alive because of other references.
952	*
953	* @param pSession The session handle of the caller.
954	* @param hEvent The handle. Nil is quietly ignored.
955	*/
956	SUPDECL(int) SUPSemEventClose(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent);
957
958	/**
959	* Signals a single release event semaphore.
960	*
961	* @returns VBox status code.
962	* @param pSession The session handle of the caller.
963	* @param hEvent The semaphore handle.
964	*/
965	SUPDECL(int) SUPSemEventSignal(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent);
966
967	#ifdef IN_RING0
968	/**
969	* Waits on a single release event semaphore, not interruptible.
970	*
971	* @returns VBox status code.
972	* @param pSession The session handle of the caller.
973	* @param hEvent The semaphore handle.
974	* @param cMillies The number of milliseconds to wait.
975	* @remarks Not available in ring-3.
976	*/
977	SUPDECL(int) SUPSemEventWait(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint32_t cMillies);
978	#endif
979
980	/**
981	* Waits on a single release event semaphore, interruptible.
982	*
983	* @returns VBox status code.
984	* @param pSession The session handle of the caller.
985	* @param hEvent The semaphore handle.
986	* @param cMillies The number of milliseconds to wait.
987	*/
988	SUPDECL(int) SUPSemEventWaitNoResume(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint32_t cMillies);
989
990	/**
991	* Waits on a single release event semaphore, interruptible.
992	*
993	* @returns VBox status code.
994	* @param pSession The session handle of the caller.
995	* @param hEvent The semaphore handle.
996	* @param uNsTimeout The deadline given on the RTTimeNanoTS() clock.
997	*/
998	SUPDECL(int) SUPSemEventWaitNsAbsIntr(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint64_t uNsTimeout);
999
1000	/**
1001	* Waits on a single release event semaphore, interruptible.
1002	*
1003	* @returns VBox status code.
1004	* @param pSession The session handle of the caller.
1005	* @param hEvent The semaphore handle.
1006	* @param cNsTimeout The number of nanoseconds to wait.
1007	*/
1008	SUPDECL(int) SUPSemEventWaitNsRelIntr(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint64_t cNsTimeout);
1009
1010	/**
1011	* Gets the best timeout resolution that SUPSemEventWaitNsAbsIntr and
1012	* SUPSemEventWaitNsAbsIntr can do.
1013	*
1014	* @returns The resolution in nanoseconds.
1015	* @param pSession The session handle of the caller.
1016	*/
1017	SUPDECL(uint32_t) SUPSemEventGetResolution(PSUPDRVSESSION pSession);
1018
1019
1020	/**
1021	* Creates a multiple release event semaphore.
1022	*
1023	* @returns VBox status code.
1024	* @param pSession The session handle of the caller.
1025	* @param phEventMulti Where to return the handle to the event semaphore.
1026	*/
1027	SUPDECL(int) SUPSemEventMultiCreate(PSUPDRVSESSION pSession, PSUPSEMEVENTMULTI phEventMulti);
1028
1029	/**
1030	* Closes a multiple release event semaphore handle.
1031	*
1032	* @returns VBox status code.
1033	* @retval VINF_OBJECT_DESTROYED if the semaphore was destroyed.
1034	* @retval VINF_SUCCESS if the handle was successfully closed but the semaphore
1035	* object remained alive because of other references.
1036	*
1037	* @param pSession The session handle of the caller.
1038	* @param hEventMulti The handle. Nil is quietly ignored.
1039	*/
1040	SUPDECL(int) SUPSemEventMultiClose(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1041
1042	/**
1043	* Signals a multiple release event semaphore.
1044	*
1045	* @returns VBox status code.
1046	* @param pSession The session handle of the caller.
1047	* @param hEventMulti The semaphore handle.
1048	*/
1049	SUPDECL(int) SUPSemEventMultiSignal(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1050
1051	/**
1052	* Resets a multiple release event semaphore.
1053	*
1054	* @returns VBox status code.
1055	* @param pSession The session handle of the caller.
1056	* @param hEventMulti The semaphore handle.
1057	*/
1058	SUPDECL(int) SUPSemEventMultiReset(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1059
1060	#ifdef IN_RING0
1061	/**
1062	* Waits on a multiple release event semaphore, not interruptible.
1063	*
1064	* @returns VBox status code.
1065	* @param pSession The session handle of the caller.
1066	* @param hEventMulti The semaphore handle.
1067	* @param cMillies The number of milliseconds to wait.
1068	* @remarks Not available in ring-3.
1069	*/
1070	SUPDECL(int) SUPSemEventMultiWait(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint32_t cMillies);
1071	#endif
1072
1073	/**
1074	* Waits on a multiple release event semaphore, interruptible.
1075	*
1076	* @returns VBox status code.
1077	* @param pSession The session handle of the caller.
1078	* @param hEventMulti The semaphore handle.
1079	* @param cMillies The number of milliseconds to wait.
1080	*/
1081	SUPDECL(int) SUPSemEventMultiWaitNoResume(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint32_t cMillies);
1082
1083	/**
1084	* Waits on a multiple release event semaphore, interruptible.
1085	*
1086	* @returns VBox status code.
1087	* @param pSession The session handle of the caller.
1088	* @param hEventMulti The semaphore handle.
1089	* @param uNsTimeout The deadline given on the RTTimeNanoTS() clock.
1090	*/
1091	SUPDECL(int) SUPSemEventMultiWaitNsAbsIntr(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint64_t uNsTimeout);
1092
1093	/**
1094	* Waits on a multiple release event semaphore, interruptible.
1095	*
1096	* @returns VBox status code.
1097	* @param pSession The session handle of the caller.
1098	* @param hEventMulti The semaphore handle.
1099	* @param cNsTimeout The number of nanoseconds to wait.
1100	*/
1101	SUPDECL(int) SUPSemEventMultiWaitNsRelIntr(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint64_t cNsTimeout);
1102
1103	/**
1104	* Gets the best timeout resolution that SUPSemEventMultiWaitNsAbsIntr and
1105	* SUPSemEventMultiWaitNsRelIntr can do.
1106	*
1107	* @returns The resolution in nanoseconds.
1108	* @param pSession The session handle of the caller.
1109	*/
1110	SUPDECL(uint32_t) SUPSemEventMultiGetResolution(PSUPDRVSESSION pSession);
1111
1112
1113	#ifdef IN_RING3
1114
1115	/** @defgroup grp_sup_r3 SUP Host Context Ring-3 API
1116	* @{
1117	*/
1118
1119	/**
1120	* Installs the support library.
1121	*
1122	* @returns VBox status code.
1123	*/
1124	SUPR3DECL(int) SUPR3Install(void);
1125
1126	/**
1127	* Uninstalls the support library.
1128	*
1129	* @returns VBox status code.
1130	*/
1131	SUPR3DECL(int) SUPR3Uninstall(void);
1132
1133	/**
1134	* Trusted main entry point.
1135	*
1136	* This is exported as "TrustedMain" by the dynamic libraries which contains the
1137	* "real" application binary for which the hardened stub is built. The entry
1138	* point is invoked upon successful initialization of the support library and
1139	* runtime.
1140	*
1141	* @returns main kind of exit code.
1142	* @param argc The argument count.
1143	* @param argv The argument vector.
1144	* @param envp The environment vector.
1145	*/
1146	typedef DECLCALLBACKTYPE(int, FNSUPTRUSTEDMAIN,(int argc, char argv, char envp));
1147	/** Pointer to FNSUPTRUSTEDMAIN(). */
1148	typedef FNSUPTRUSTEDMAIN *PFNSUPTRUSTEDMAIN;
1149
1150	/** Which operation failed. */
1151	typedef enum SUPINITOP
1152	{
1153	/** Invalid. */
1154	kSupInitOp_Invalid = 0,
1155	/** Installation integrity error. */
1156	kSupInitOp_Integrity,
1157	/** Setuid related. */
1158	kSupInitOp_RootCheck,
1159	/** Driver related. */
1160	kSupInitOp_Driver,
1161	/** IPRT init related. */
1162	kSupInitOp_IPRT,
1163	/** Miscellaneous. */
1164	kSupInitOp_Misc,
1165	/** Place holder. */
1166	kSupInitOp_End
1167	} SUPINITOP;
1168
1169	/**
1170	* Trusted error entry point, optional.
1171	*
1172	* This is exported as "TrustedError" by the dynamic libraries which contains
1173	* the "real" application binary for which the hardened stub is built. The
1174	* hardened main() must specify SUPSECMAIN_FLAGS_TRUSTED_ERROR when calling
1175	* SUPR3HardenedMain.
1176	*
1177	* @param pszWhere Where the error occurred (function name).
1178	* @param enmWhat Which operation went wrong.
1179	* @param rc The status code.
1180	* @param pszMsgFmt Error message format string.
1181	* @param va The message format arguments.
1182	*/
1183	typedef DECLCALLBACKTYPE(void, FNSUPTRUSTEDERROR,(const char *pszWhere, SUPINITOP enmWhat, int rc,
1184	const char *pszMsgFmt, va_list va)) RT_IPRT_FORMAT_ATTR(4, 0);
1185	/** Pointer to FNSUPTRUSTEDERROR. */
1186	typedef FNSUPTRUSTEDERROR *PFNSUPTRUSTEDERROR;
1187
1188	/**
1189	* Secure main.
1190	*
1191	* This is used for the set-user-ID-on-execute binaries on unixy systems
1192	* and when using the open-vboxdrv-via-root-service setup on Windows.
1193	*
1194	* This function will perform the integrity checks of the VirtualBox
1195	* installation, open the support driver, open the root service (later),
1196	* and load the DLL corresponding to \a pszProgName and execute its main
1197	* function.
1198	*
1199	* @returns Return code appropriate for main().
1200	*
1201	* @param pszProgName The program name. This will be used to figure out which
1202	* DLL/SO/DYLIB to load and execute.
1203	* @param fFlags Flags.
1204	* @param argc The argument count.
1205	* @param argv The argument vector.
1206	* @param envp The environment vector.
1207	*/
1208	DECLHIDDEN(int) SUPR3HardenedMain(const char pszProgName, uint32_t fFlags, int argc, char argv, char *envp);
1209
1210	/** @name SUPR3HardenedMain flags.
1211	* @{ */
1212	/** Don't open the device. (Intended for VirtualBox without -startvm.) */
1213	#define SUPSECMAIN_FLAGS_DONT_OPEN_DEV RT_BIT_32(0)
1214	/** The hardened DLL has a "TrustedError" function (see FNSUPTRUSTEDERROR). */
1215	#define SUPSECMAIN_FLAGS_TRUSTED_ERROR RT_BIT_32(1)
1216	/** Hack for making VirtualBoxVM use VirtualBox.dylib on Mac OS X.
1217	* @note Not used since 6.0 */
1218	#define SUPSECMAIN_FLAGS_OSX_VM_APP RT_BIT_32(2)
1219	/** Program binary location mask. */
1220	#define SUPSECMAIN_FLAGS_LOC_MASK UINT32_C(0x00000030)
1221	/** Default binary location is the application binary directory. Does
1222	* not need to be given explicitly (it's 0). */
1223	#define SUPSECMAIN_FLAGS_LOC_APP_BIN UINT32_C(0x00000000)
1224	/** The binary is located in the testcase directory instead of the
1225	* default application binary directory. */
1226	#define SUPSECMAIN_FLAGS_LOC_TESTCASE UINT32_C(0x00000010)
1227	/** The binary is located in a nested application bundle under Resources/ in the
1228	* main Mac OS X application (think Resources/VirtualBoxVM.app). */
1229	#define SUPSECMAIN_FLAGS_LOC_OSX_HLP_APP UINT32_C(0x00000020)
1230	/** The first process.
1231	* @internal */
1232	#define SUPSECMAIN_FLAGS_FIRST_PROCESS UINT32_C(0x00000100)
1233	/** @} */
1234
1235	/**
1236	* Initializes the support library.
1237	*
1238	* Each successful call to SUPR3Init() or SUPR3InitEx must be countered by a
1239	* call to SUPR3Term(false).
1240	*
1241	* @returns VBox status code.
1242	* @param ppSession Where to store the session handle. Defaults to NULL.
1243	*/
1244	SUPR3DECL(int) SUPR3Init(PSUPDRVSESSION *ppSession);
1245
1246	/**
1247	* Initializes the support library, extended version.
1248	*
1249	* Each successful call to SUPR3Init() or SUPR3InitEx must be countered by a
1250	* call to SUPR3Term(false).
1251	*
1252	* @returns VBox status code.
1253	* @param fUnrestricted The desired access.
1254	* @param ppSession Where to store the session handle. Defaults to NULL.
1255	*/
1256	SUPR3DECL(int) SUPR3InitEx(bool fUnrestricted, PSUPDRVSESSION *ppSession);
1257
1258	/**
1259	* Terminates the support library.
1260	*
1261	* @returns VBox status code.
1262	* @param fForced Forced termination. This means to ignore the
1263	* init call count and just terminated.
1264	*/
1265	#ifdef __cplusplus
1266	SUPR3DECL(int) SUPR3Term(bool fForced = false);
1267	#else
1268	SUPR3DECL(int) SUPR3Term(int fForced);
1269	#endif
1270
1271	/**
1272	* Sets the ring-0 VM handle for use with fast IOCtls.
1273	*
1274	* @returns VBox status code.
1275	* @param pVMR0 The ring-0 VM handle.
1276	* NIL_RTR0PTR can be used to unset the handle when the
1277	* VM is about to be destroyed.
1278	*/
1279	SUPR3DECL(int) SUPR3SetVMForFastIOCtl(PVMR0 pVMR0);
1280
1281	/**
1282	* Calls the HC R0 VMM entry point.
1283	* See VMMR0Entry() for more details.
1284	*
1285	* @returns error code specific to uFunction.
1286	* @param pVMR0 Pointer to the Ring-0 (Host Context) mapping of the VM structure.
1287	* @param idCpu The virtual CPU ID.
1288	* @param uOperation Operation to execute.
1289	* @param pvArg Argument.
1290	*/
1291	SUPR3DECL(int) SUPR3CallVMMR0(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, void *pvArg);
1292
1293	/**
1294	* Variant of SUPR3CallVMMR0, except that this takes the fast ioclt path
1295	* regardsless of compile-time defaults.
1296	*
1297	* @returns VBox status code.
1298	* @param pVMR0 The ring-0 VM handle.
1299	* @param uOperation The operation; only the SUP_VMMR0_DO_* ones are valid.
1300	* @param idCpu The virtual CPU ID.
1301	*/
1302	SUPR3DECL(int) SUPR3CallVMMR0Fast(PVMR0 pVMR0, unsigned uOperation, VMCPUID idCpu);
1303
1304	/**
1305	* Calls the HC R0 VMM entry point, in a safer but slower manner than
1306	* SUPR3CallVMMR0. When entering using this call the R0 components can call
1307	* into the host kernel (i.e. use the SUPR0 and RT APIs).
1308	*
1309	* See VMMR0Entry() for more details.
1310	*
1311	* @returns error code specific to uFunction.
1312	* @param pVMR0 Pointer to the Ring-0 (Host Context) mapping of the VM structure.
1313	* @param idCpu The virtual CPU ID.
1314	* @param uOperation Operation to execute.
1315	* @param u64Arg Constant argument.
1316	* @param pReqHdr Pointer to a request header. Optional.
1317	* This will be copied in and out of kernel space. There currently is a size
1318	* limit on this, just below 4KB.
1319	*/
1320	SUPR3DECL(int) SUPR3CallVMMR0Ex(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr);
1321
1322	/**
1323	* Calls a ring-0 service.
1324	*
1325	* The operation and the request packet is specific to the service.
1326	*
1327	* @returns error code specific to uFunction.
1328	* @param pszService The service name.
1329	* @param cchService The length of the service name.
1330	* @param uOperation The request number.
1331	* @param u64Arg Constant argument.
1332	* @param pReqHdr Pointer to a request header. Optional.
1333	* This will be copied in and out of kernel space. There currently is a size
1334	* limit on this, just below 4KB.
1335	*/
1336	SUPR3DECL(int) SUPR3CallR0Service(const char *pszService, size_t cchService, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr);
1337
1338	/** Which logger. */
1339	typedef enum SUPLOGGER
1340	{
1341	SUPLOGGER_DEBUG = 1,
1342	SUPLOGGER_RELEASE
1343	} SUPLOGGER;
1344
1345	/**
1346	* Changes the settings of the specified ring-0 logger.
1347	*
1348	* @returns VBox status code.
1349	* @param enmWhich Which logger.
1350	* @param pszFlags The flags settings.
1351	* @param pszGroups The groups settings.
1352	* @param pszDest The destination specificier.
1353	*/
1354	SUPR3DECL(int) SUPR3LoggerSettings(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest);
1355
1356	/**
1357	* Creates a ring-0 logger instance.
1358	*
1359	* @returns VBox status code.
1360	* @param enmWhich Which logger to create.
1361	* @param pszFlags The flags settings.
1362	* @param pszGroups The groups settings.
1363	* @param pszDest The destination specificier.
1364	*/
1365	SUPR3DECL(int) SUPR3LoggerCreate(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest);
1366
1367	/**
1368	* Destroys a ring-0 logger instance.
1369	*
1370	* @returns VBox status code.
1371	* @param enmWhich Which logger.
1372	*/
1373	SUPR3DECL(int) SUPR3LoggerDestroy(SUPLOGGER enmWhich);
1374
1375	/**
1376	* Queries the paging mode of the host OS.
1377	*
1378	* @returns The paging mode.
1379	*/
1380	SUPR3DECL(SUPPAGINGMODE) SUPR3GetPagingMode(void);
1381
1382	/**
1383	* Allocate zero-filled pages.
1384	*
1385	* Use this to allocate a number of pages suitable for seeding / locking.
1386	* Call SUPR3PageFree() to free the pages once done with them.
1387	*
1388	* @returns VBox status.
1389	* @param cPages Number of pages to allocate.
1390	* @param ppvPages Where to store the base pointer to the allocated pages.
1391	*/
1392	SUPR3DECL(int) SUPR3PageAlloc(size_t cPages, void **ppvPages);
1393
1394	/**
1395	* Frees pages allocated with SUPR3PageAlloc().
1396	*
1397	* @returns VBox status.
1398	* @param pvPages Pointer returned by SUPR3PageAlloc().
1399	* @param cPages Number of pages that was allocated.
1400	*/
1401	SUPR3DECL(int) SUPR3PageFree(void *pvPages, size_t cPages);
1402
1403	/**
1404	* Allocate non-zeroed, locked, pages with user and, optionally, kernel
1405	* mappings.
1406	*
1407	* Use SUPR3PageFreeEx() to free memory allocated with this function.
1408	*
1409	* @returns VBox status code.
1410	* @param cPages The number of pages to allocate.
1411	* @param fFlags Flags, reserved. Must be zero.
1412	* @param ppvPages Where to store the address of the user mapping.
1413	* @param pR0Ptr Where to store the address of the kernel mapping.
1414	* NULL if no kernel mapping is desired.
1415	* @param paPages Where to store the physical addresses of each page.
1416	* Optional.
1417	*/
1418	SUPR3DECL(int) SUPR3PageAllocEx(size_t cPages, uint32_t fFlags, void **ppvPages, PRTR0PTR pR0Ptr, PSUPPAGE paPages);
1419
1420	/**
1421	* Maps a portion of a ring-3 only allocation into kernel space.
1422	*
1423	* @returns VBox status code.
1424	*
1425	* @param pvR3 The address SUPR3PageAllocEx return.
1426	* @param off Offset to start mapping at. Must be page aligned.
1427	* @param cb Number of bytes to map. Must be page aligned.
1428	* @param fFlags Flags, must be zero.
1429	* @param pR0Ptr Where to store the address on success.
1430	*
1431	*/
1432	SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr);
1433
1434	/**
1435	* Changes the protection of
1436	*
1437	* @returns VBox status code.
1438	* @retval VERR_NOT_SUPPORTED if the OS doesn't allow us to change page level
1439	* protection. See also RTR0MemObjProtect.
1440	*
1441	* @param pvR3 The ring-3 address SUPR3PageAllocEx returned.
1442	* @param R0Ptr The ring-0 address SUPR3PageAllocEx returned if it
1443	* is desired that the corresponding ring-0 page
1444	* mappings should change protection as well. Pass
1445	* NIL_RTR0PTR if the ring-0 pages should remain
1446	* unaffected.
1447	* @param off Offset to start at which to start chagning the page
1448	* level protection. Must be page aligned.
1449	* @param cb Number of bytes to change. Must be page aligned.
1450	* @param fProt The new page level protection, either a combination
1451	* of RTMEM_PROT_READ, RTMEM_PROT_WRITE and
1452	* RTMEM_PROT_EXEC, or just RTMEM_PROT_NONE.
1453	*/
1454	SUPR3DECL(int) SUPR3PageProtect(void *pvR3, RTR0PTR R0Ptr, uint32_t off, uint32_t cb, uint32_t fProt);
1455
1456	/**
1457	* Free pages allocated by SUPR3PageAllocEx.
1458	*
1459	* @returns VBox status code.
1460	* @param pvPages The address of the user mapping.
1461	* @param cPages The number of pages.
1462	*/
1463	SUPR3DECL(int) SUPR3PageFreeEx(void *pvPages, size_t cPages);
1464
1465	/**
1466	* Allocated memory with page aligned memory with a contiguous and locked physical
1467	* memory backing below 4GB.
1468	*
1469	* @returns Pointer to the allocated memory (virtual address).
1470	* *pHCPhys is set to the physical address of the memory.
1471	* If ppvR0 isn't NULL, *ppvR0 is set to the ring-0 mapping.
1472	* The returned memory must be freed using SUPR3ContFree().
1473	* @returns NULL on failure.
1474	* @param cPages Number of pages to allocate.
1475	* @param pR0Ptr Where to store the ring-0 mapping of the allocation. (optional)
1476	* @param pHCPhys Where to store the physical address of the memory block.
1477	*
1478	* @remark This 2nd version of this API exists because we're not able to map the
1479	* ring-3 mapping executable on WIN64. This is a serious problem in regard to
1480	* the world switchers.
1481	*/
1482	SUPR3DECL(void *) SUPR3ContAlloc(size_t cPages, PRTR0PTR pR0Ptr, PRTHCPHYS pHCPhys);
1483
1484	/**
1485	* Frees memory allocated with SUPR3ContAlloc().
1486	*
1487	* @returns VBox status code.
1488	* @param pv Pointer to the memory block which should be freed.
1489	* @param cPages Number of pages to be freed.
1490	*/
1491	SUPR3DECL(int) SUPR3ContFree(void *pv, size_t cPages);
1492
1493	/**
1494	* Allocated non contiguous physical memory below 4GB.
1495	*
1496	* The memory isn't zeroed.
1497	*
1498	* @returns VBox status code.
1499	* @returns NULL on failure.
1500	* @param cPages Number of pages to allocate.
1501	* @param ppvPages Where to store the pointer to the allocated memory.
1502	* The pointer stored here on success must be passed to
1503	* SUPR3LowFree when the memory should be released.
1504	* @param ppvPagesR0 Where to store the ring-0 pointer to the allocated memory. optional.
1505	* @param paPages Where to store the physical addresses of the individual pages.
1506	*/
1507	SUPR3DECL(int) SUPR3LowAlloc(size_t cPages, void **ppvPages, PRTR0PTR ppvPagesR0, PSUPPAGE paPages);
1508
1509	/**
1510	* Frees memory allocated with SUPR3LowAlloc().
1511	*
1512	* @returns VBox status code.
1513	* @param pv Pointer to the memory block which should be freed.
1514	* @param cPages Number of pages that was allocated.
1515	*/
1516	SUPR3DECL(int) SUPR3LowFree(void *pv, size_t cPages);
1517
1518	/**
1519	* Load a module into R0 HC.
1520	*
1521	* This will verify the file integrity in a similar manner as
1522	* SUPR3HardenedVerifyFile before loading it.
1523	*
1524	* @returns VBox status code.
1525	* @param pszFilename The path to the image file.
1526	* @param pszModule The module name. Max 32 bytes.
1527	* @param ppvImageBase Where to store the image address.
1528	* @param pErrInfo Where to return extended error information.
1529	* Optional.
1530	*/
1531	SUPR3DECL(int) SUPR3LoadModule(const char pszFilename, const char pszModule, void **ppvImageBase, PRTERRINFO pErrInfo);
1532
1533	/**
1534	* Load a module into R0 HC.
1535	*
1536	* This will verify the file integrity in a similar manner as
1537	* SUPR3HardenedVerifyFile before loading it.
1538	*
1539	* @returns VBox status code.
1540	* @param pszFilename The path to the image file.
1541	* @param pszModule The module name. Max 32 bytes.
1542	* @param pszSrvReqHandler The name of the service request handler entry
1543	* point. See FNSUPR0SERVICEREQHANDLER.
1544	* @param ppvImageBase Where to store the image address.
1545	*/
1546	SUPR3DECL(int) SUPR3LoadServiceModule(const char pszFilename, const char pszModule,
1547	const char pszSrvReqHandler, void *ppvImageBase);
1548
1549	/**
1550	* Frees a R0 HC module.
1551	*
1552	* @returns VBox status code.
1553	* @param pvImageBase The base address of the image to free.
1554	* @remark This will not actually 'free' the module, there are of course usage counting.
1555	*/
1556	SUPR3DECL(int) SUPR3FreeModule(void *pvImageBase);
1557
1558	/**
1559	* Lock down the module loader interface.
1560	*
1561	* This will lock down the module loader interface. No new modules can be
1562	* loaded and all loaded modules can no longer be freed.
1563	*
1564	* @returns VBox status code.
1565	* @param pErrInfo Where to return extended error information.
1566	* Optional.
1567	*/
1568	SUPR3DECL(int) SUPR3LockDownLoader(PRTERRINFO pErrInfo);
1569
1570	/**
1571	* Get the address of a symbol in a ring-0 module.
1572	*
1573	* @returns VBox status code.
1574	* @param pvImageBase The base address of the image to search.
1575	* @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
1576	* ordinal value rather than a string pointer.
1577	* @param ppvValue Where to store the symbol value.
1578	*/
1579	SUPR3DECL(int) SUPR3GetSymbolR0(void pvImageBase, const char pszSymbol, void **ppvValue);
1580
1581	/**
1582	* Load R0 HC VMM code.
1583	*
1584	* @returns VBox status code.
1585	* @deprecated Use SUPR3LoadModule(pszFilename, "VMMR0.r0", &pvImageBase)
1586	* @param pszFilename Full path to the VMMR0.r0 file (silly).
1587	* @param pErrInfo Where to return extended error information.
1588	* Optional.
1589	*/
1590	SUPR3DECL(int) SUPR3LoadVMM(const char *pszFilename, PRTERRINFO pErrInfo);
1591
1592	/**
1593	* Unloads R0 HC VMM code.
1594	*
1595	* @returns VBox status code.
1596	* @deprecated Use SUPR3FreeModule().
1597	*/
1598	SUPR3DECL(int) SUPR3UnloadVMM(void);
1599
1600	/**
1601	* Get the physical address of the GIP.
1602	*
1603	* @returns VBox status code.
1604	* @param pHCPhys Where to store the physical address of the GIP.
1605	*/
1606	SUPR3DECL(int) SUPR3GipGetPhys(PRTHCPHYS pHCPhys);
1607
1608	/**
1609	* Initializes only the bits relevant for the SUPR3HardenedVerify* APIs.
1610	*
1611	* This is for users that don't necessarily need to initialize the whole of
1612	* SUPLib. There is no harm in calling this one more time.
1613	*
1614	* @returns VBox status code.
1615	* @remarks Currently not counted, so only call once.
1616	*/
1617	SUPR3DECL(int) SUPR3HardenedVerifyInit(void);
1618
1619	/**
1620	* Reverses the effect of SUPR3HardenedVerifyInit if SUPR3InitEx hasn't been
1621	* called.
1622	*
1623	* Ignored if the support library was initialized using SUPR3Init or
1624	* SUPR3InitEx.
1625	*
1626	* @returns VBox status code.
1627	*/
1628	SUPR3DECL(int) SUPR3HardenedVerifyTerm(void);
1629
1630	/**
1631	* Verifies the integrity of a file, and optionally opens it.
1632	*
1633	* The integrity check is for whether the file is suitable for loading into
1634	* the hypervisor or VM process. The integrity check may include verifying
1635	* the authenticode/elfsign/whatever signature of the file, which can take
1636	* a little while.
1637	*
1638	* @returns VBox status code. On failure it will have printed a LogRel message.
1639	*
1640	* @param pszFilename The file.
1641	* @param pszWhat For the LogRel on failure.
1642	* @param phFile Where to store the handle to the opened file. This is optional, pass NULL
1643	* if the file should not be opened.
1644	* @deprecated Write a new one.
1645	*/
1646	SUPR3DECL(int) SUPR3HardenedVerifyFile(const char pszFilename, const char pszWhat, PRTFILE phFile);
1647
1648	/**
1649	* Verifies the integrity of a the current process, including the image
1650	* location and that the invocation was absolute.
1651	*
1652	* This must currently be called after initializing the runtime. The intended
1653	* audience is set-uid-to-root applications, root services and similar.
1654	*
1655	* @returns VBox status code. On failure
1656	* message.
1657	* @param pszArgv0 The first argument to main().
1658	* @param fInternal Set this to @c true if this is an internal
1659	* VirtualBox application. Otherwise pass @c false.
1660	* @param pErrInfo Where to return extended error information.
1661	*/
1662	SUPR3DECL(int) SUPR3HardenedVerifySelf(const char *pszArgv0, bool fInternal, PRTERRINFO pErrInfo);
1663
1664	/**
1665	* Verifies the integrity of an installation directory.
1666	*
1667	* The integrity check verifies that the directory cannot be tampered with by
1668	* normal users on the system. On Unix this translates to root ownership and
1669	* no symbolic linking.
1670	*
1671	* @returns VBox status code. On failure a message will be stored in @a pszErr.
1672	*
1673	* @param pszDirPath The directory path.
1674	* @param fRecursive Whether the check should be recursive or
1675	* not. When set, all sub-directores will be checked,
1676	* including files (@a fCheckFiles is ignored).
1677	* @param fCheckFiles Whether to apply the same basic integrity check to
1678	* the files in the directory as the directory itself.
1679	* @param pErrInfo Where to return extended error information.
1680	* Optional.
1681	*/
1682	SUPR3DECL(int) SUPR3HardenedVerifyDir(const char *pszDirPath, bool fRecursive, bool fCheckFiles, PRTERRINFO pErrInfo);
1683
1684	/**
1685	* Verifies the integrity of a plug-in module.
1686	*
1687	* This is similar to SUPR3HardenedLdrLoad, except it does not load the module
1688	* and that the module does not have to be shipped with VirtualBox.
1689	*
1690	* @returns VBox status code. On failure a message will be stored in @a pszErr.
1691	*
1692	* @param pszFilename The filename of the plug-in module (nothing can be
1693	* omitted here).
1694	* @param pErrInfo Where to return extended error information.
1695	* Optional.
1696	*/
1697	SUPR3DECL(int) SUPR3HardenedVerifyPlugIn(const char *pszFilename, PRTERRINFO pErrInfo);
1698
1699	/**
1700	* Same as RTLdrLoad() but will verify the files it loads (hardened builds).
1701	*
1702	* Will add dll suffix if missing and try load the file.
1703	*
1704	* @returns iprt status code.
1705	* @param pszFilename Image filename. This must have a path.
1706	* @param phLdrMod Where to store the handle to the loaded module.
1707	* @param fFlags See RTLDRLOAD_FLAGS_XXX.
1708	* @param pErrInfo Where to return extended error information.
1709	* Optional.
1710	*/
1711	SUPR3DECL(int) SUPR3HardenedLdrLoad(const char *pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo);
1712
1713	/**
1714	* Same as RTLdrLoadAppPriv() but it will verify the files it loads (hardened
1715	* builds).
1716	*
1717	* Will add dll suffix to the file if missing, then look for it in the
1718	* architecture dependent application directory.
1719	*
1720	* @returns iprt status code.
1721	* @param pszFilename Image filename.
1722	* @param phLdrMod Where to store the handle to the loaded module.
1723	* @param fFlags See RTLDRLOAD_FLAGS_XXX.
1724	* @param pErrInfo Where to return extended error information.
1725	* Optional.
1726	*/
1727	SUPR3DECL(int) SUPR3HardenedLdrLoadAppPriv(const char *pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo);
1728
1729	/**
1730	* Same as RTLdrLoad() but will verify the files it loads (hardened builds).
1731	*
1732	* This differs from SUPR3HardenedLdrLoad() in that it can load modules from
1733	* extension packs and anything else safely installed on the system, provided
1734	* they pass the hardening tests.
1735	*
1736	* @returns iprt status code.
1737	* @param pszFilename The full path to the module, with extension.
1738	* @param phLdrMod Where to store the handle to the loaded module.
1739	* @param pErrInfo Where to return extended error information.
1740	* Optional.
1741	*/
1742	SUPR3DECL(int) SUPR3HardenedLdrLoadPlugIn(const char *pszFilename, PRTLDRMOD phLdrMod, PRTERRINFO pErrInfo);
1743
1744	/**
1745	* Check if the host kernel can run in VMX root mode.
1746	*
1747	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1748	* @param ppszWhy Where to return an explanatory message on failure.
1749	*/
1750	SUPR3DECL(int) SUPR3QueryVTxSupported(const char **ppszWhy);
1751
1752	/**
1753	* Return VT-x/AMD-V capabilities.
1754	*
1755	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1756	* @param pfCaps Pointer to capability dword (out).
1757	* @todo Intended for main, which means we need to relax the privilege requires
1758	* when accessing certain vboxdrv functions.
1759	*/
1760	SUPR3DECL(int) SUPR3QueryVTCaps(uint32_t *pfCaps);
1761
1762	/**
1763	* Check if NEM is supported when no VT-x/AMD-V is indicated by the CPU.
1764	*
1765	* This is really only for the windows case where we're running in a root
1766	* partition and isn't allowed to use the hardware directly.
1767	*
1768	* @returns True if NEM API support, false if not.
1769	*/
1770	SUPR3DECL(bool) SUPR3IsNemSupportedWhenNoVtxOrAmdV(void);
1771
1772	/**
1773	* Open the tracer.
1774	*
1775	* @returns VBox status code.
1776	* @param uCookie Cookie identifying the tracer we expect to talk to.
1777	* @param uArg Tracer specific open argument.
1778	*/
1779	SUPR3DECL(int) SUPR3TracerOpen(uint32_t uCookie, uintptr_t uArg);
1780
1781	/**
1782	* Closes the tracer.
1783	*
1784	* @returns VBox status code.
1785	*/
1786	SUPR3DECL(int) SUPR3TracerClose(void);
1787
1788	/**
1789	* Perform an I/O request on the tracer.
1790	*
1791	* @returns VBox status.
1792	* @param uCmd The tracer command.
1793	* @param uArg The argument.
1794	* @param piRetVal Where to store the tracer return value.
1795	*/
1796	SUPR3DECL(int) SUPR3TracerIoCtl(uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal);
1797
1798	/**
1799	* Registers the user module with the tracer.
1800	*
1801	* @returns VBox status code.
1802	* @param hModNative Native module handle. Pass ~(uintptr_t)0 if not
1803	* at hand.
1804	* @param pszModule The module name.
1805	* @param pVtgHdr The VTG header.
1806	* @param uVtgHdrAddr The address to which the VTG header is loaded
1807	* in the relevant execution context.
1808	* @param fFlags See SUP_TRACER_UMOD_FLAGS_XXX
1809	*/
1810	SUPR3DECL(int) SUPR3TracerRegisterModule(uintptr_t hModNative, const char pszModule, struct VTGOBJHDR pVtgHdr,
1811	RTUINTPTR uVtgHdrAddr, uint32_t fFlags);
1812
1813	/**
1814	* Deregisters the user module.
1815	*
1816	* @returns VBox status code.
1817	* @param pVtgHdr The VTG header.
1818	*/
1819	SUPR3DECL(int) SUPR3TracerDeregisterModule(struct VTGOBJHDR *pVtgHdr);
1820
1821	/**
1822	* Fire the probe.
1823	*
1824	* @param pVtgProbeLoc The probe location record.
1825	* @param uArg0 Raw probe argument 0.
1826	* @param uArg1 Raw probe argument 1.
1827	* @param uArg2 Raw probe argument 2.
1828	* @param uArg3 Raw probe argument 3.
1829	* @param uArg4 Raw probe argument 4.
1830	*/
1831	SUPDECL(void) SUPTracerFireProbe(struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
1832	uintptr_t uArg3, uintptr_t uArg4);
1833
1834	/**
1835	* Attempts to read the value of an MSR.
1836	*
1837	* @returns VBox status code.
1838	* @param uMsr The MSR to read.
1839	* @param idCpu The CPU to read it on, NIL_RTCPUID if it doesn't
1840	* matter which CPU.
1841	* @param puValue Where to return the value.
1842	* @param pfGp Where to store the \#GP indicator for the read
1843	* operation.
1844	*/
1845	SUPR3DECL(int) SUPR3MsrProberRead(uint32_t uMsr, RTCPUID idCpu, uint64_t puValue, bool pfGp);
1846
1847	/**
1848	* Attempts to write to an MSR.
1849	*
1850	* @returns VBox status code.
1851	* @param uMsr The MSR to write to.
1852	* @param idCpu The CPU to wrtie it on, NIL_RTCPUID if it
1853	* doesn't matter which CPU.
1854	* @param uValue The value to write.
1855	* @param pfGp Where to store the \#GP indicator for the write
1856	* operation.
1857	*/
1858	SUPR3DECL(int) SUPR3MsrProberWrite(uint32_t uMsr, RTCPUID idCpu, uint64_t uValue, bool *pfGp);
1859
1860	/**
1861	* Attempts to modify the value of an MSR.
1862	*
1863	* @returns VBox status code.
1864	* @param uMsr The MSR to modify.
1865	* @param idCpu The CPU to modify it on, NIL_RTCPUID if it
1866	* doesn't matter which CPU.
1867	* @param fAndMask The bits to keep in the current MSR value.
1868	* @param fOrMask The bits to set before writing.
1869	* @param pResult The result buffer.
1870	*/
1871	SUPR3DECL(int) SUPR3MsrProberModify(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask,
1872	PSUPMSRPROBERMODIFYRESULT pResult);
1873
1874	/**
1875	* Attempts to modify the value of an MSR, extended version.
1876	*
1877	* @returns VBox status code.
1878	* @param uMsr The MSR to modify.
1879	* @param idCpu The CPU to modify it on, NIL_RTCPUID if it
1880	* doesn't matter which CPU.
1881	* @param fAndMask The bits to keep in the current MSR value.
1882	* @param fOrMask The bits to set before writing.
1883	* @param fFaster If set to @c true some cache/tlb invalidation is
1884	* skipped, otherwise behave like
1885	* SUPR3MsrProberModify.
1886	* @param pResult The result buffer.
1887	*/
1888	SUPR3DECL(int) SUPR3MsrProberModifyEx(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask, bool fFaster,
1889	PSUPMSRPROBERMODIFYRESULT pResult);
1890
1891	/**
1892	* Resume built-in keyboard on MacBook Air and Pro hosts.
1893	*
1894	* @returns VBox status code.
1895	*/
1896	SUPR3DECL(int) SUPR3ResumeSuspendedKeyboards(void);
1897
1898	/**
1899	* Measure the TSC-delta for the specified CPU.
1900	*
1901	* @returns VBox status code.
1902	* @param idCpu The CPU to measure the TSC-delta for.
1903	* @param fAsync Whether the measurement is asynchronous, returns
1904	* immediately after signalling a measurement
1905	* request.
1906	* @param fForce Whether to perform a measurement even if the
1907	* specified CPU has a (possibly) valid TSC delta.
1908	* @param cRetries Number of times to retry failed delta
1909	* measurements.
1910	* @param cMsWaitRetry Number of milliseconds to wait between retries.
1911	*/
1912	SUPR3DECL(int) SUPR3TscDeltaMeasure(RTCPUID idCpu, bool fAsync, bool fForce, uint8_t cRetries, uint8_t cMsWaitRetry);
1913
1914	/**
1915	* Reads the delta-adjust TSC value.
1916	*
1917	* @returns VBox status code.
1918	* @param puTsc Where to store the read TSC value.
1919	* @param pidApic Where to store the APIC ID of the CPU where the TSC
1920	* was read (optional, can be NULL).
1921	*/
1922	SUPR3DECL(int) SUPR3ReadTsc(uint64_t puTsc, uint16_t pidApic);
1923
1924	/**
1925	* Modifies the GIP flags.
1926	*
1927	* @returns VBox status code.
1928	* @param fOrMask The OR mask of the GIP flags, see SUPGIP_FLAGS_XXX.
1929	* @param fAndMask The AND mask of the GIP flags, see SUPGIP_FLAGS_XXX.
1930	*/
1931	SUPR3DECL(int) SUPR3GipSetFlags(uint32_t fOrMask, uint32_t fAndMask);
1932
1933	/**
1934	* Return processor microcode revision, if applicable.
1935	*
1936	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1937	* @param puMicrocodeRev Pointer to microcode revision dword (out).
1938	*/
1939	SUPR3DECL(int) SUPR3QueryMicrocodeRev(uint32_t *puMicrocodeRev);
1940
1941	/**
1942	* Gets hardware-virtualization MSRs of the CPU, if available.
1943	*
1944	* @returns VINF_SUCCESS if available, error code indicating why if not.
1945	* @param pHwvirtMsrs Where to store the hardware-virtualization MSRs.
1946	* @param fForceRequery Whether to force complete re-querying of MSRs (rather
1947	* than fetching cached values when available).
1948	*/
1949	SUPR3DECL(int) SUPR3GetHwvirtMsrs(PSUPHWVIRTMSRS pHwvirtMsrs, bool fForceRequery);
1950
1951	/** @} */
1952	#endif /* IN_RING3 */
1953
1954
1955	/** @name User mode module flags (SUPR3TracerRegisterModule & SUP_IOCTL_TRACER_UMOD_REG).
1956	* @{ */
1957	/** Executable image. */
1958	#define SUP_TRACER_UMOD_FLAGS_EXE UINT32_C(1)
1959	/** Shared library (DLL, DYLIB, SO, etc). */
1960	#define SUP_TRACER_UMOD_FLAGS_SHARED UINT32_C(2)
1961	/** Image type mask. */
1962	#define SUP_TRACER_UMOD_FLAGS_TYPE_MASK UINT32_C(3)
1963	/** @} */
1964
1965
1966	#ifdef IN_RING0
1967	/** @defgroup grp_sup_r0 SUP Host Context Ring-0 API
1968	* @{
1969	*/
1970
1971	/**
1972	* Security objectype.
1973	*/
1974	typedef enum SUPDRVOBJTYPE
1975	{
1976	/** The usual invalid object. */
1977	SUPDRVOBJTYPE_INVALID = 0,
1978	/** A Virtual Machine instance. */
1979	SUPDRVOBJTYPE_VM,
1980	/** Internal network. */
1981	SUPDRVOBJTYPE_INTERNAL_NETWORK,
1982	/** Internal network interface. */
1983	SUPDRVOBJTYPE_INTERNAL_NETWORK_INTERFACE,
1984	/** Single release event semaphore. */
1985	SUPDRVOBJTYPE_SEM_EVENT,
1986	/** Multiple release event semaphore. */
1987	SUPDRVOBJTYPE_SEM_EVENT_MULTI,
1988	/** Raw PCI device. */
1989	SUPDRVOBJTYPE_RAW_PCI_DEVICE,
1990	/** The first invalid object type in this end. */
1991	SUPDRVOBJTYPE_END,
1992	/** The usual 32-bit type size hack. */
1993	SUPDRVOBJTYPE_32_BIT_HACK = 0x7ffffff
1994	} SUPDRVOBJTYPE;
1995
1996	/**
1997	* Object destructor callback.
1998	* This is called for reference counted objectes when the count reaches 0.
1999	*
2000	* @param pvObj The object pointer.
2001	* @param pvUser1 The first user argument.
2002	* @param pvUser2 The second user argument.
2003	*/
2004	typedef DECLCALLBACKTYPE(void, FNSUPDRVDESTRUCTOR,(void pvObj, void pvUser1, void *pvUser2));
2005	/** Pointer to a FNSUPDRVDESTRUCTOR(). */
2006	typedef FNSUPDRVDESTRUCTOR *PFNSUPDRVDESTRUCTOR;
2007
2008	/**
2009	* Service request callback function.
2010	*
2011	* @returns VBox status code.
2012	* @param pSession The caller's session.
2013	* @param uOperation The operation identifier.
2014	* @param u64Arg 64-bit integer argument.
2015	* @param pReqHdr The request header. Input / Output. Optional.
2016	*/
2017	typedef DECLCALLBACKTYPE(int, FNSUPR0SERVICEREQHANDLER,(PSUPDRVSESSION pSession, uint32_t uOperation,
2018	uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr));
2019	/** Pointer to a FNR0SERVICEREQHANDLER(). */
2020	typedef R0PTRTYPE(FNSUPR0SERVICEREQHANDLER *) PFNSUPR0SERVICEREQHANDLER;
2021
2022	/**
2023	* Symbol entry for a wrapped module (SUPLDRWRAPPEDMODULE).
2024	*/
2025	typedef struct SUPLDRWRAPMODSYMBOL
2026	{
2027	/** The symbol namel. */
2028	const char *pszSymbol;
2029	/** The symbol address/value. */
2030	PFNRT pfnValue;
2031	} SUPLDRWRAPMODSYMBOL;
2032	/** Pointer to a symbol entry for a wrapped module. */
2033	typedef SUPLDRWRAPMODSYMBOL const *PCSUPLDRWRAPMODSYMBOL;
2034
2035	/**
2036	* Registration structure for SUPR0LdrRegisterWrapperModule.
2037	*
2038	* This is used to register a .r0 module when loaded manually as a native kernel
2039	* module/extension/driver/whatever.
2040	*/
2041	typedef struct SUPLDRWRAPPEDMODULE
2042	{
2043	/** Magic value (SUPLDRWRAPPEDMODULE_MAGIC). */
2044	uint32_t uMagic;
2045	/** The structure version. */
2046	uint16_t uVersion;
2047	/** SUPLDRWRAPPEDMODULE_F_XXX. */
2048	uint16_t fFlags;
2049
2050	/** As close as possible to the start of the image. */
2051	void *pvImageStart;
2052	/** As close as possible to the end of the image. */
2053	void *pvImageEnd;
2054
2055	/** @name Standar entry points
2056	* @{ */
2057	/** Pointer to the module initialization function (optional). */
2058	DECLCALLBACKMEMBER(int, pfnModuleInit,(void *hMod));
2059	/** Pointer to the module termination function (optional). */
2060	DECLCALLBACKMEMBER(void, pfnModuleTerm,(void *hMod));
2061	/** The VMMR0EntryFast entry point for VMMR0. */
2062	PFNRT pfnVMMR0EntryFast;
2063	/** The VMMR0EntryEx entry point for VMMR0. */
2064	PFNRT pfnVMMR0EntryEx;
2065	/** The service request handler entry point. */
2066	PFNSUPR0SERVICEREQHANDLER pfnServiceReqHandler;
2067	/** @} */
2068
2069	/** The symbol table. */
2070	PCSUPLDRWRAPMODSYMBOL paSymbols;
2071	/** Number of symbols. */
2072	uint32_t cSymbols;
2073
2074	/** The normal VBox module name. */
2075	char szName[32];
2076	/** Repeating the magic value here (SUPLDRWRAPPEDMODULE_MAGIC). */
2077	uint32_t uEndMagic;
2078	} SUPLDRWRAPPEDMODULE;
2079	/** Pointer to the wrapped module registration structure. */
2080	typedef SUPLDRWRAPPEDMODULE const *PCSUPLDRWRAPPEDMODULE;
2081
2082	/** Magic value for the wrapped module structure (Doris lessing). */
2083	#define SUPLDRWRAPPEDMODULE_MAGIC UINT32_C(0x19191117)
2084	/** Current SUPLDRWRAPPEDMODULE structure version. */
2085	#define SUPLDRWRAPPEDMODULE_VERSION UINT16_C(0x0001)
2086
2087	/** Set if this is the VMMR0 module. */
2088	#define SUPLDRWRAPPEDMODULE_F_VMMR0 UINT16_C(0x0001)
2089
2090
2091	SUPR0DECL(void ) SUPR0ObjRegister(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void pvUser1, void *pvUser2);
2092	SUPR0DECL(int) SUPR0ObjAddRef(void *pvObj, PSUPDRVSESSION pSession);
2093	SUPR0DECL(int) SUPR0ObjAddRefEx(void *pvObj, PSUPDRVSESSION pSession, bool fNoBlocking);
2094	SUPR0DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession);
2095	SUPR0DECL(int) SUPR0ObjVerifyAccess(void pvObj, PSUPDRVSESSION pSession, const char pszObjName);
2096
2097	SUPR0DECL(PVM) SUPR0GetSessionVM(PSUPDRVSESSION pSession);
2098	SUPR0DECL(PGVM) SUPR0GetSessionGVM(PSUPDRVSESSION pSession);
2099	SUPR0DECL(int) SUPR0SetSessionVM(PSUPDRVSESSION pSession, PGVM pGVM, PVM pVM);
2100
2101	SUPR0DECL(int) SUPR0LockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages);
2102	SUPR0DECL(int) SUPR0UnlockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3);
2103	SUPR0DECL(int) SUPR0ContAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS pHCPhys);
2104	SUPR0DECL(int) SUPR0ContFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
2105	SUPR0DECL(int) SUPR0LowAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS paPages);
2106	SUPR0DECL(int) SUPR0LowFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
2107	SUPR0DECL(int) SUPR0MemAlloc(PSUPDRVSESSION pSession, uint32_t cb, PRTR0PTR ppvR0, PRTR3PTR ppvR3);
2108	SUPR0DECL(int) SUPR0MemGetPhys(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, PSUPPAGE paPages);
2109	SUPR0DECL(int) SUPR0MemFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
2110	SUPR0DECL(int) SUPR0PageAllocEx(PSUPDRVSESSION pSession, uint32_t cPages, uint32_t fFlags, PRTR3PTR ppvR3, PRTR0PTR ppvR0, PRTHCPHYS paPages);
2111	SUPR0DECL(int) SUPR0PageMapKernel(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t offSub, uint32_t cbSub, uint32_t fFlags, PRTR0PTR ppvR0);
2112	SUPR0DECL(int) SUPR0PageProtect(PSUPDRVSESSION pSession, RTR3PTR pvR3, RTR0PTR pvR0, uint32_t offSub, uint32_t cbSub, uint32_t fProt);
2113	SUPR0DECL(int) SUPR0PageFree(PSUPDRVSESSION pSession, RTR3PTR pvR3);
2114	SUPR0DECL(int) SUPR0GipMap(PSUPDRVSESSION pSession, PRTR3PTR ppGipR3, PRTHCPHYS pHCPhysGip);
2115	SUPR0DECL(int) SUPR0LdrLock(PSUPDRVSESSION pSession);
2116	SUPR0DECL(int) SUPR0LdrUnlock(PSUPDRVSESSION pSession);
2117	SUPR0DECL(bool) SUPR0LdrIsLockOwnerByMod(void *hMod, bool fWantToHear);
2118	SUPR0DECL(int) SUPR0LdrModByName(PSUPDRVSESSION pSession, const char pszName, void *phMod);
2119	SUPR0DECL(int) SUPR0LdrModRetain(PSUPDRVSESSION pSession, void *hMod);
2120	SUPR0DECL(int) SUPR0LdrModRelease(PSUPDRVSESSION pSession, void *hMod);
2121	#ifdef RT_OS_LINUX
2122	SUPR0DECL(int) SUPDrvLinuxLdrRegisterWrappedModule(PCSUPLDRWRAPPEDMODULE pWrappedModInfo, const char pszLnxModName, void *phMod);
2123	SUPR0DECL(int) SUPDrvLinuxLdrDeregisterWrappedModule(PCSUPLDRWRAPPEDMODULE pWrappedModInfo, void **phMod);
2124	#endif
2125	SUPR0DECL(int) SUPR0GetVTSupport(uint32_t *pfCaps);
2126	SUPR0DECL(int) SUPR0GetHwvirtMsrs(PSUPHWVIRTMSRS pMsrs, uint32_t fCaps, bool fForce);
2127	SUPR0DECL(int) SUPR0GetSvmUsability(bool fInitSvm);
2128	SUPR0DECL(int) SUPR0GetVmxUsability(bool *pfIsSmxModeAmbiguous);
2129	SUPR0DECL(int) SUPR0GetCurrentGdtRw(RTHCUINTPTR *pGdtRw);
2130	SUPR0DECL(int) SUPR0QueryVTCaps(PSUPDRVSESSION pSession, uint32_t *pfCaps);
2131	SUPR0DECL(int) SUPR0GipUnmap(PSUPDRVSESSION pSession);
2132	SUPR0DECL(int) SUPR0QueryUcodeRev(PSUPDRVSESSION pSession, uint32_t *puMicrocodeRev);
2133	SUPR0DECL(SUPPAGINGMODE) SUPR0GetPagingMode(void);
2134	SUPR0DECL(RTCCUINTREG) SUPR0ChangeCR4(RTCCUINTREG fOrMask, RTCCUINTREG fAndMask);
2135	SUPR0DECL(int) SUPR0EnableVTx(bool fEnable);
2136	SUPR0DECL(bool) SUPR0SuspendVTxOnCpu(void);
2137	SUPR0DECL(void) SUPR0ResumeVTxOnCpu(bool fSuspended);
2138	#define SUP_TSCDELTA_MEASURE_F_FORCE RT_BIT_32(0)
2139	#define SUP_TSCDELTA_MEASURE_F_ASYNC RT_BIT_32(1)
2140	#define SUP_TSCDELTA_MEASURE_F_VALID_MASK UINT32_C(0x00000003)
2141	SUPR0DECL(int) SUPR0TscDeltaMeasureBySetIndex(PSUPDRVSESSION pSession, uint32_t iCpuSet, uint32_t fFlags,
2142	RTMSINTERVAL cMsWaitRetry, RTMSINTERVAL cMsWaitThread, uint32_t cTries);
2143
2144	SUPR0DECL(void) SUPR0BadContext(PSUPDRVSESSION pSession, const char pszFile, uint32_t uLine, const char pszExpr);
2145
2146	#if defined(RT_OS_LINUX) \|\| defined(RT_OS_SOLARIS)
2147	/**
2148	* Translates a physical address to a virtual mapping (valid up to end of page).
2149	* @returns VBox status code.
2150	* @param HCPhys The physical address, must be page aligned.
2151	* @param ppv Where to store the mapping address on success.
2152	*/
2153	SUPR0DECL(int) SUPR0HCPhysToVirt(RTHCPHYS HCPhys, void **ppv);
2154	#endif
2155
2156	/** Context structure returned by SUPR0IoCtlSetup for use with
2157	* SUPR0IoCtlPerform and cleaned up by SUPR0IoCtlCleanup. */
2158	typedef struct SUPR0IOCTLCTX *PSUPR0IOCTLCTX;
2159
2160	/**
2161	* Sets up a I/O control context for the given handle.
2162	*
2163	* @returns VBox status code.
2164	* @param pSession The support driver session.
2165	* @param hHandle The handle.
2166	* @param fFlags Flag, MBZ.
2167	* @param ppCtx Where the context is returned.
2168	*/
2169	SUPR0DECL(int) SUPR0IoCtlSetupForHandle(PSUPDRVSESSION pSession, intptr_t hHandle, uint32_t fFlags, PSUPR0IOCTLCTX *ppCtx);
2170
2171	/**
2172	* Cleans up the I/O control context when done.
2173	*
2174	* This won't close the handle passed to SUPR0IoCtlSetupForHandle.
2175	*
2176	* @returns VBox status code.
2177	* @param pCtx The I/O control context to cleanup.
2178	*/
2179	SUPR0DECL(int) SUPR0IoCtlCleanup(PSUPR0IOCTLCTX pCtx);
2180
2181	/**
2182	* Performs an I/O control operation.
2183	*
2184	* @returns VBox status code.
2185	* @param pCtx The I/O control context returned by
2186	* SUPR0IoCtlSetupForHandle.
2187	* @param uFunction The I/O control function to perform.
2188	* @param pvInput Pointer to input buffer (ring-0).
2189	* @param pvInputUser Ring-3 pointer corresponding to @a pvInput.
2190	* @param cbInput The amount of input. If zero, both input pointers
2191	* are expected to be NULL.
2192	* @param pvOutput Pointer to output buffer (ring-0).
2193	* @param pvOutputUser Ring-3 pointer corresponding to @a pvInput.
2194	* @param cbOutput The amount of input. If zero, both input pointers
2195	* are expected to be NULL.
2196	* @param piNativeRc Where to return the native return code. When
2197	* specified the VBox status code will typically be
2198	* VINF_SUCCESS and the caller have to consult this for
2199	* the actual result of the operation. (This saves
2200	* pointless status code conversion.) Optional.
2201	*
2202	* @note On unix systems where there is only one set of buffers possible,
2203	* pass the same pointers as input and output.
2204	*/
2205	SUPR0DECL(int) SUPR0IoCtlPerform(PSUPR0IOCTLCTX pCtx, uintptr_t uFunction,
2206	void *pvInput, RTR3PTR pvInputUser, size_t cbInput,
2207	void *pvOutput, RTR3PTR pvOutputUser, size_t cbOutput,
2208	int32_t *piNativeRc);
2209
2210	/**
2211	* Writes to the debugger and/or kernel log.
2212	*
2213	* The length of the formatted message is somewhat limited, so keep things short
2214	* and to the point.
2215	*
2216	* @returns Number of bytes written, mabye.
2217	* @param pszFormat IPRT format string.
2218	* @param ... Arguments referenced by the format string.
2219	*/
2220	SUPR0DECL(int) SUPR0Printf(const char *pszFormat, ...) RT_IPRT_FORMAT_ATTR(1, 2);
2221
2222	/**
2223	* Returns configuration flags of the host kernel.
2224	*
2225	* @returns Combination of SUPKERNELFEATURES_XXX flags.
2226	*/
2227	SUPR0DECL(uint32_t) SUPR0GetKernelFeatures(void);
2228
2229	/** @copydoc RTLogGetDefaultInstanceEx
2230	* @remarks To allow overriding RTLogGetDefaultInstanceEx locally. */
2231	SUPR0DECL(struct RTLOGGER *) SUPR0GetDefaultLogInstanceEx(uint32_t fFlagsAndGroup);
2232	/** @copydoc RTLogRelGetDefaultInstanceEx
2233	* @remarks To allow overriding RTLogRelGetDefaultInstanceEx locally. */
2234	SUPR0DECL(struct RTLOGGER *) SUPR0GetDefaultLogRelInstanceEx(uint32_t fFlagsAndGroup);
2235
2236
2237	/** @name Absolute symbols
2238	* Take the address of these, don't try call them.
2239	* @{ */
2240	SUPR0DECL(void) SUPR0AbsIs64bit(void);
2241	SUPR0DECL(void) SUPR0Abs64bitKernelCS(void);
2242	SUPR0DECL(void) SUPR0Abs64bitKernelSS(void);
2243	SUPR0DECL(void) SUPR0Abs64bitKernelDS(void);
2244	SUPR0DECL(void) SUPR0AbsKernelCS(void);
2245	SUPR0DECL(void) SUPR0AbsKernelSS(void);
2246	SUPR0DECL(void) SUPR0AbsKernelDS(void);
2247	SUPR0DECL(void) SUPR0AbsKernelES(void);
2248	SUPR0DECL(void) SUPR0AbsKernelFS(void);
2249	SUPR0DECL(void) SUPR0AbsKernelGS(void);
2250	/** @} */
2251
2252	/**
2253	* Support driver component factory.
2254	*
2255	* Component factories are registered by drivers that provides services
2256	* such as the host network interface filtering and access to the host
2257	* TCP/IP stack.
2258	*
2259	* @remark Module dependencies and making sure that a component doesn't
2260	* get unloaded while in use, is the sole responsibility of the
2261	* driver/kext/whatever implementing the component.
2262	*/
2263	typedef struct SUPDRVFACTORY
2264	{
2265	/** The (unique) name of the component factory. */
2266	char szName[56];
2267	/**
2268	* Queries a factory interface.
2269	*
2270	* The factory interface is specific to each component and will be be
2271	* found in the header(s) for the component alongside its UUID.
2272	*
2273	* @returns Pointer to the factory interfaces on success, NULL on failure.
2274	*
2275	* @param pSupDrvFactory Pointer to this structure.
2276	* @param pSession The SUPDRV session making the query.
2277	* @param pszInterfaceUuid The UUID of the factory interface.
2278	*/
2279	DECLR0CALLBACKMEMBER(void , pfnQueryFactoryInterface,(struct SUPDRVFACTORY const pSupDrvFactory, PSUPDRVSESSION pSession, const char *pszInterfaceUuid));
2280	} SUPDRVFACTORY;
2281	/** Pointer to a support driver factory. */
2282	typedef SUPDRVFACTORY *PSUPDRVFACTORY;
2283	/** Pointer to a const support driver factory. */
2284	typedef SUPDRVFACTORY const *PCSUPDRVFACTORY;
2285
2286	SUPR0DECL(int) SUPR0ComponentRegisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
2287	SUPR0DECL(int) SUPR0ComponentDeregisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
2288	SUPR0DECL(int) SUPR0ComponentQueryFactory(PSUPDRVSESSION pSession, const char pszName, const char pszInterfaceUuid, void **ppvFactoryIf);
2289
2290
2291	/** @name Tracing
2292	* @{ */
2293
2294	/**
2295	* Tracer data associated with a provider.
2296	*/
2297	typedef union SUPDRVTRACERDATA
2298	{
2299	/** Generic */
2300	uint64_t au64[2];
2301
2302	/** DTrace data. */
2303	struct
2304	{
2305	/** Provider ID. */
2306	uintptr_t idProvider;
2307	/** The number of trace points provided. */
2308	uint32_t volatile cProvidedProbes;
2309	/** Whether we've invalidated this bugger. */
2310	bool fZombie;
2311	} DTrace;
2312	} SUPDRVTRACERDATA;
2313	/** Pointer to the tracer data associated with a provider. */
2314	typedef SUPDRVTRACERDATA *PSUPDRVTRACERDATA;
2315
2316	/**
2317	* Probe location info for ring-0.
2318	*
2319	* Since we cannot trust user tracepoint modules, we need to duplicate the probe
2320	* ID and enabled flag in ring-0.
2321	*/
2322	typedef struct SUPDRVPROBELOC
2323	{
2324	/** The probe ID. */
2325	uint32_t idProbe;
2326	/** Whether it's enabled or not. */
2327	bool fEnabled;
2328	} SUPDRVPROBELOC;
2329	/** Pointer to a ring-0 probe location record. */
2330	typedef SUPDRVPROBELOC *PSUPDRVPROBELOC;
2331
2332	/**
2333	* Probe info for ring-0.
2334	*
2335	* Since we cannot trust user tracepoint modules, we need to duplicate the
2336	* probe enable count.
2337	*/
2338	typedef struct SUPDRVPROBEINFO
2339	{
2340	/** The number of times this probe has been enabled. */
2341	uint32_t volatile cEnabled;
2342	} SUPDRVPROBEINFO;
2343	/** Pointer to a ring-0 probe info record. */
2344	typedef SUPDRVPROBEINFO *PSUPDRVPROBEINFO;
2345
2346	/**
2347	* Support driver tracepoint provider core.
2348	*/
2349	typedef struct SUPDRVVDTPROVIDERCORE
2350	{
2351	/** The tracer data member. */
2352	SUPDRVTRACERDATA TracerData;
2353	/** Pointer to the provider name (a copy that's always available). */
2354	const char *pszName;
2355	/** Pointer to the module name (a copy that's always available). */
2356	const char *pszModName;
2357
2358	/** The provider descriptor. */
2359	struct VTGDESCPROVIDER *pDesc;
2360	/** The VTG header. */
2361	struct VTGOBJHDR *pHdr;
2362
2363	/** The size of the entries in the pvProbeLocsEn table. */
2364	uint8_t cbProbeLocsEn;
2365	/** The actual module bit count (corresponds to cbProbeLocsEn). */
2366	uint8_t cBits;
2367	/** Set if this is a Umod, otherwise clear. */
2368	bool fUmod;
2369	/** Explicit alignment padding (paranoia). */
2370	uint8_t abAlignment[ARCH_BITS == 32 ? 1 : 5];
2371
2372	/** The probe locations used for descriptive purposes. */
2373	struct VTGPROBELOC const *paProbeLocsRO;
2374	/** Pointer to the probe location array where the enable flag needs
2375	* flipping. For kernel providers, this will always be SUPDRVPROBELOC,
2376	* while user providers can either be 32-bit or 64-bit. Use
2377	* cbProbeLocsEn to calculate the address of an entry. */
2378	void *pvProbeLocsEn;
2379	/** Pointer to the probe array containing the enabled counts. */
2380	uint32_t *pacProbeEnabled;
2381
2382	/** The ring-0 probe location info for user tracepoint modules.
2383	* This is NULL if fUmod is false. */
2384	PSUPDRVPROBELOC paR0ProbeLocs;
2385	/** The ring-0 probe info for user tracepoint modules.
2386	* This is NULL if fUmod is false. */
2387	PSUPDRVPROBEINFO paR0Probes;
2388
2389	} SUPDRVVDTPROVIDERCORE;
2390	/** Pointer to a tracepoint provider core structure. */
2391	typedef SUPDRVVDTPROVIDERCORE *PSUPDRVVDTPROVIDERCORE;
2392
2393	/** Pointer to a tracer registration record. */
2394	typedef struct SUPDRVTRACERREG const *PCSUPDRVTRACERREG;
2395	/**
2396	* Support driver tracer registration record.
2397	*/
2398	typedef struct SUPDRVTRACERREG
2399	{
2400	/** Magic value (SUPDRVTRACERREG_MAGIC). */
2401	uint32_t u32Magic;
2402	/** Version (SUPDRVTRACERREG_VERSION). */
2403	uint32_t u32Version;
2404
2405	/**
2406	* Fire off a kernel probe.
2407	*
2408	* @param pVtgProbeLoc The probe location record.
2409	* @param uArg0 The first raw probe argument.
2410	* @param uArg1 The second raw probe argument.
2411	* @param uArg2 The third raw probe argument.
2412	* @param uArg3 The fourth raw probe argument.
2413	* @param uArg4 The fifth raw probe argument.
2414	*
2415	* @remarks SUPR0TracerFireProbe will do a tail jump thru this member, so
2416	* no extra stack frames will be added.
2417	* @remarks This does not take a 'this' pointer argument because it doesn't map
2418	* well onto VTG or DTrace.
2419	*
2420	*/
2421	DECLR0CALLBACKMEMBER(void, pfnProbeFireKernel, (struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
2422	uintptr_t uArg3, uintptr_t uArg4));
2423
2424	/**
2425	* Fire off a user-mode probe.
2426	*
2427	* @param pThis Pointer to the registration record.
2428	*
2429	* @param pVtgProbeLoc The probe location record.
2430	* @param pSession The user session.
2431	* @param pCtx The usermode context info.
2432	* @param pVtgHdr The VTG header (read-only).
2433	* @param pProbeLocRO The read-only probe location record .
2434	*/
2435	DECLR0CALLBACKMEMBER(void, pfnProbeFireUser, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, PCSUPDRVTRACERUSRCTX pCtx,
2436	struct VTGOBJHDR const pVtgHdr, struct VTGPROBELOC const pProbeLocRO));
2437
2438	/**
2439	* Opens up the tracer.
2440	*
2441	* @returns VBox status code.
2442	* @param pThis Pointer to the registration record.
2443	* @param pSession The session doing the opening.
2444	* @param uCookie A cookie (magic) unique to the tracer, so it can
2445	* fend off incompatible clients.
2446	* @param uArg Tracer specific argument.
2447	* @param puSessionData Pointer to the session data variable. This must be
2448	* set to a non-zero value on success.
2449	*/
2450	DECLR0CALLBACKMEMBER(int, pfnTracerOpen, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uint32_t uCookie, uintptr_t uArg,
2451	uintptr_t *puSessionData));
2452
2453	/**
2454	* I/O control style tracer communication method.
2455	*
2456	*
2457	* @returns VBox status code.
2458	* @param pThis Pointer to the registration record.
2459	* @param pSession The session.
2460	* @param uSessionData The session data value.
2461	* @param uCmd The tracer specific command.
2462	* @param uArg The tracer command specific argument.
2463	* @param piRetVal The tracer specific return value.
2464	*/
2465	DECLR0CALLBACKMEMBER(int, pfnTracerIoCtl, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uintptr_t uSessionData,
2466	uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal));
2467
2468	/**
2469	* Cleans up data the tracer has associated with a session.
2470	*
2471	* @param pThis Pointer to the registration record.
2472	* @param pSession The session handle.
2473	* @param uSessionData The data assoicated with the session.
2474	*/
2475	DECLR0CALLBACKMEMBER(void, pfnTracerClose, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uintptr_t uSessionData));
2476
2477	/**
2478	* Registers a provider.
2479	*
2480	* @returns VBox status code.
2481	* @param pThis Pointer to the registration record.
2482	* @param pCore The provider core data.
2483	*
2484	* @todo Kernel vs. Userland providers.
2485	*/
2486	DECLR0CALLBACKMEMBER(int, pfnProviderRegister, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2487
2488	/**
2489	* Attempts to deregisters a provider.
2490	*
2491	* @returns VINF_SUCCESS or VERR_TRY_AGAIN. If the latter, the provider
2492	* should be made as harmless as possible before returning as the
2493	* VTG object and associated code will be unloaded upon return.
2494	*
2495	* @param pThis Pointer to the registration record.
2496	* @param pCore The provider core data.
2497	*/
2498	DECLR0CALLBACKMEMBER(int, pfnProviderDeregister, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2499
2500	/**
2501	* Make another attempt at unregister a busy provider.
2502	*
2503	* @returns VINF_SUCCESS or VERR_TRY_AGAIN.
2504	* @param pThis Pointer to the registration record.
2505	* @param pCore The provider core data.
2506	*/
2507	DECLR0CALLBACKMEMBER(int, pfnProviderDeregisterZombie, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2508
2509	/** End marker (SUPDRVTRACERREG_MAGIC). */
2510	uintptr_t uEndMagic;
2511	} SUPDRVTRACERREG;
2512
2513	/** Tracer magic (Kenny Garrett). */
2514	#define SUPDRVTRACERREG_MAGIC UINT32_C(0x19601009)
2515	/** Tracer registration structure version. */
2516	#define SUPDRVTRACERREG_VERSION RT_MAKE_U32(0, 1)
2517
2518	/** Pointer to a trace helper structure. */
2519	typedef struct SUPDRVTRACERHLP const *PCSUPDRVTRACERHLP;
2520	/**
2521	* Helper structure.
2522	*/
2523	typedef struct SUPDRVTRACERHLP
2524	{
2525	/** The structure version (SUPDRVTRACERHLP_VERSION). */
2526	uintptr_t uVersion;
2527
2528	/** @todo ... */
2529
2530	/** End marker (SUPDRVTRACERHLP_VERSION) */
2531	uintptr_t uEndVersion;
2532	} SUPDRVTRACERHLP;
2533	/** Tracer helper structure version. */
2534	#define SUPDRVTRACERHLP_VERSION RT_MAKE_U32(0, 1)
2535
2536	SUPR0DECL(int) SUPR0TracerRegisterImpl(void hMod, PSUPDRVSESSION pSession, PCSUPDRVTRACERREG pReg, PCSUPDRVTRACERHLP ppHlp);
2537	SUPR0DECL(int) SUPR0TracerDeregisterImpl(void *hMod, PSUPDRVSESSION pSession);
2538	SUPR0DECL(int) SUPR0TracerRegisterDrv(PSUPDRVSESSION pSession, struct VTGOBJHDR pVtgHdr, const char pszName);
2539	SUPR0DECL(void) SUPR0TracerDeregisterDrv(PSUPDRVSESSION pSession);
2540	SUPR0DECL(int) SUPR0TracerRegisterModule(void hMod, struct VTGOBJHDR pVtgHdr);
2541	SUPR0DECL(void) SUPR0TracerFireProbe(struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
2542	uintptr_t uArg3, uintptr_t uArg4);
2543	SUPR0DECL(void) SUPR0TracerUmodProbeFire(PSUPDRVSESSION pSession, PSUPDRVTRACERUSRCTX pCtx);
2544	/** @} */
2545
2546
2547	/** @defgroup grp_sup_r0_idc The IDC Interface
2548	* @{
2549	*/
2550
2551	/** The current SUPDRV IDC version.
2552	* This follows the usual high word / low word rules, i.e. high word is the
2553	* major number and it signifies incompatible interface changes. */
2554	#define SUPDRV_IDC_VERSION UINT32_C(0x00010000)
2555
2556	/**
2557	* Inter-Driver Communication Handle.
2558	*/
2559	typedef union SUPDRVIDCHANDLE
2560	{
2561	/** Padding for opaque usage.
2562	* Must be greater or equal in size than the private struct. */
2563	void *apvPadding[4];
2564	#ifdef SUPDRVIDCHANDLEPRIVATE_DECLARED
2565	/** The private view. */
2566	struct SUPDRVIDCHANDLEPRIVATE s;
2567	#endif
2568	} SUPDRVIDCHANDLE;
2569	/** Pointer to a handle. */
2570	typedef SUPDRVIDCHANDLE *PSUPDRVIDCHANDLE;
2571
2572	SUPR0DECL(int) SUPR0IdcOpen(PSUPDRVIDCHANDLE pHandle, uint32_t uReqVersion, uint32_t uMinVersion,
2573	uint32_t puSessionVersion, uint32_t puDriverVersion, uint32_t *puDriverRevision);
2574	SUPR0DECL(int) SUPR0IdcCall(PSUPDRVIDCHANDLE pHandle, uint32_t iReq, void *pvReq, uint32_t cbReq);
2575	SUPR0DECL(int) SUPR0IdcClose(PSUPDRVIDCHANDLE pHandle);
2576	SUPR0DECL(PSUPDRVSESSION) SUPR0IdcGetSession(PSUPDRVIDCHANDLE pHandle);
2577	SUPR0DECL(int) SUPR0IdcComponentRegisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory);
2578	SUPR0DECL(int) SUPR0IdcComponentDeregisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory);
2579
2580	/** @} */
2581
2582	/** @name Ring-0 module entry points.
2583	*
2584	* These can be exported by ring-0 modules SUP are told to load.
2585	*
2586	* @{ */
2587	DECLEXPORT(int) ModuleInit(void *hMod);
2588	DECLEXPORT(void) ModuleTerm(void *hMod);
2589	/** @} */
2590
2591
2592	/** @} */
2593	#endif
2594
2595
2596	/** @name Trust Anchors and Certificates
2597	* @{ */
2598
2599	/**
2600	* Trust anchor table entry (in generated Certificates.cpp).
2601	*/
2602	typedef struct SUPTAENTRY
2603	{
2604	/** Pointer to the raw bytes. */
2605	const unsigned char *pch;
2606	/** Number of bytes. */
2607	unsigned cb;
2608	} SUPTAENTRY;
2609	/** Pointer to a trust anchor table entry. */
2610	typedef SUPTAENTRY const *PCSUPTAENTRY;
2611
2612	/** Macro for simplifying generating the trust anchor tables. */
2613	#define SUPTAENTRY_GEN(a_abTA) { &a_abTA[0], sizeof(a_abTA) }
2614
2615	/** All certificates we know. */
2616	extern SUPTAENTRY const g_aSUPAllTAs[];
2617	/** Number of entries in g_aSUPAllTAs. */
2618	extern unsigned const g_cSUPAllTAs;
2619
2620	/** Software publisher certificate roots (Authenticode). */
2621	extern SUPTAENTRY const g_aSUPSpcRootTAs[];
2622	/** Number of entries in g_aSUPSpcRootTAs. */
2623	extern unsigned const g_cSUPSpcRootTAs;
2624
2625	/** Kernel root certificates used by Windows. */
2626	extern SUPTAENTRY const g_aSUPNtKernelRootTAs[];
2627	/** Number of entries in g_aSUPNtKernelRootTAs. */
2628	extern unsigned const g_cSUPNtKernelRootTAs;
2629
2630	/** Timestamp root certificates trusted by Windows. */
2631	extern SUPTAENTRY const g_aSUPTimestampTAs[];
2632	/** Number of entries in g_aSUPTimestampTAs. */
2633	extern unsigned const g_cSUPTimestampTAs;
2634
2635	/** Root certificates trusted by Apple code signing. */
2636	extern SUPTAENTRY const g_aSUPAppleRootTAs[];
2637	/** Number of entries in g_cSUPAppleRootTAs. */
2638	extern unsigned const g_cSUPAppleRootTAs;
2639
2640	/** TAs we trust (the build certificate, Oracle VirtualBox). */
2641	extern SUPTAENTRY const g_aSUPTrustedTAs[];
2642	/** Number of entries in g_aSUPTrustedTAs. */
2643	extern unsigned const g_cSUPTrustedTAs;
2644
2645	/** Supplemental certificates, like cross signing certificates. */
2646	extern SUPTAENTRY const g_aSUPSupplementalTAs[];
2647	/** Number of entries in g_aSUPTrustedTAs. */
2648	extern unsigned const g_cSUPSupplementalTAs;
2649
2650	/** The build certificate. */
2651	extern const unsigned char g_abSUPBuildCert[];
2652	/** The size of the build certificate. */
2653	extern const unsigned g_cbSUPBuildCert;
2654
2655	/** @} */
2656
2657
2658	/** @} */
2659
2660	RT_C_DECLS_END
2661
2662	#endif /* !VBOX_INCLUDED_sup_h */
2663

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