sup.h@ 81514

Last change on this file since 81514 was 81304, checked in by vboxsync, 5 years ago
SUPDrv: Added reporting of VT-x's VMCS shadowing CPU feature as part of SUPR0QueryVTCaps.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 93.2 KB

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1	/** @file
2	* SUP - Support Library. (HDrv)
3	*/
4
5	/*
6	* Copyright (C) 2006-2019 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	/**
114	* Hardware-virtualization MSRs.
115	*/
116	typedef struct SUPHWVIRTMSRS
117	{
118	union
119	{
120	struct
121	{
122	uint64_t u64FeatCtrl;
123	uint64_t u64Basic;
124	uint64_t u64PinCtls;
125	uint64_t u64ProcCtls;
126	uint64_t u64ProcCtls2;
127	uint64_t u64ExitCtls;
128	uint64_t u64EntryCtls;
129	uint64_t u64TruePinCtls;
130	uint64_t u64TrueProcCtls;
131	uint64_t u64TrueEntryCtls;
132	uint64_t u64TrueExitCtls;
133	uint64_t u64Misc;
134	uint64_t u64Cr0Fixed0;
135	uint64_t u64Cr0Fixed1;
136	uint64_t u64Cr4Fixed0;
137	uint64_t u64Cr4Fixed1;
138	uint64_t u64VmcsEnum;
139	uint64_t u64VmFunc;
140	uint64_t u64EptVpidCaps;
141	uint64_t a_u64Reserved[9];
142	} vmx;
143	struct
144	{
145	uint64_t u64MsrHwcr;
146	uint64_t u64Padding[27];
147	}svm;
148	} u;
149	} SUPHWVIRTMSRS;
150	AssertCompileSize(SUPHWVIRTMSRS, 224);
151	/** Pointer to a hardware-virtualization MSRs struct. */
152	typedef SUPHWVIRTMSRS *PSUPHWVIRTMSRS;
153	/** Pointer to a hardware-virtualization MSRs struct. */
154	typedef const SUPHWVIRTMSRS *PCSUPHWVIRTMSRS;
155
156
157	/**
158	* Usermode probe context information.
159	*/
160	typedef struct SUPDRVTRACERUSRCTX
161	{
162	/** The probe ID from the VTG location record. */
163	uint32_t idProbe;
164	/** 32 if X86, 64 if AMD64. */
165	uint8_t cBits;
166	/** Reserved padding. */
167	uint8_t abReserved[3];
168	/** Data which format is dictated by the cBits member. */
169	union
170	{
171	/** X86 context info. */
172	struct
173	{
174	uint32_t uVtgProbeLoc; /*< Location record address. /
175	uint32_t aArgs[20]; /*< Raw arguments. /
176	uint32_t eip;
177	uint32_t eflags;
178	uint32_t eax;
179	uint32_t ecx;
180	uint32_t edx;
181	uint32_t ebx;
182	uint32_t esp;
183	uint32_t ebp;
184	uint32_t esi;
185	uint32_t edi;
186	uint16_t cs;
187	uint16_t ss;
188	uint16_t ds;
189	uint16_t es;
190	uint16_t fs;
191	uint16_t gs;
192	} X86;
193
194	/** AMD64 context info. */
195	struct
196	{
197	uint64_t uVtgProbeLoc; /*< Location record address. /
198	uint64_t aArgs[10]; /*< Raw arguments. /
199	uint64_t rip;
200	uint64_t rflags;
201	uint64_t rax;
202	uint64_t rcx;
203	uint64_t rdx;
204	uint64_t rbx;
205	uint64_t rsp;
206	uint64_t rbp;
207	uint64_t rsi;
208	uint64_t rdi;
209	uint64_t r8;
210	uint64_t r9;
211	uint64_t r10;
212	uint64_t r11;
213	uint64_t r12;
214	uint64_t r13;
215	uint64_t r14;
216	uint64_t r15;
217	} Amd64;
218	} u;
219	} SUPDRVTRACERUSRCTX;
220	/** Pointer to the usermode probe context information. */
221	typedef SUPDRVTRACERUSRCTX *PSUPDRVTRACERUSRCTX;
222	/** Pointer to the const usermode probe context information. */
223	typedef SUPDRVTRACERUSRCTX const *PCSUPDRVTRACERUSRCTX;
224
225	/**
226	* The result of a modification operation (SUPMSRPROBEROP_MODIFY or
227	* SUPMSRPROBEROP_MODIFY_FASTER).
228	*/
229	typedef struct SUPMSRPROBERMODIFYRESULT
230	{
231	/** The MSR value prior to the modifications. Valid if fBeforeGp is false */
232	uint64_t uBefore;
233	/** The value that was written. Valid if fBeforeGp is false */
234	uint64_t uWritten;
235	/** The MSR value after the modifications. Valid if AfterGp is false. */
236	uint64_t uAfter;
237	/** Set if we GPed reading the MSR before the modification. */
238	bool fBeforeGp;
239	/** Set if we GPed while trying to write the modified value.
240	* This is set when fBeforeGp is true. */
241	bool fModifyGp;
242	/** Set if we GPed while trying to read the MSR after the modification.
243	* This is set when fBeforeGp is true. */
244	bool fAfterGp;
245	/** Set if we GPed while trying to restore the MSR after the modification.
246	* This is set when fBeforeGp is true. */
247	bool fRestoreGp;
248	/** Structure size alignment padding. */
249	bool afReserved[4];
250	} SUPMSRPROBERMODIFYRESULT, *PSUPMSRPROBERMODIFYRESULT;
251
252
253	/**
254	* The CPU state.
255	*/
256	typedef enum SUPGIPCPUSTATE
257	{
258	/** Invalid CPU state / unused CPU entry. */
259	SUPGIPCPUSTATE_INVALID = 0,
260	/** The CPU is not present. */
261	SUPGIPCPUSTATE_ABSENT,
262	/** The CPU is offline. */
263	SUPGIPCPUSTATE_OFFLINE,
264	/** The CPU is online. */
265	SUPGIPCPUSTATE_ONLINE,
266	/** Force 32-bit enum type. */
267	SUPGIPCPUSTATE_32_BIT_HACK = 0x7fffffff
268	} SUPGIPCPUSTATE;
269
270	/**
271	* Per CPU data.
272	*/
273	typedef struct SUPGIPCPU
274	{
275	/** Update transaction number.
276	* This number is incremented at the start and end of each update. It follows
277	* thusly that odd numbers indicates update in progress, while even numbers
278	* indicate stable data. Use this to make sure that the data items you fetch
279	* are consistent. */
280	volatile uint32_t u32TransactionId;
281	/** The interval in TSC ticks between two NanoTS updates.
282	* This is the average interval over the last 2, 4 or 8 updates + a little slack.
283	* The slack makes the time go a tiny tiny bit slower and extends the interval enough
284	* to avoid ending up with too many 1ns increments. */
285	volatile uint32_t u32UpdateIntervalTSC;
286	/** Current nanosecond timestamp. */
287	volatile uint64_t u64NanoTS;
288	/** The TSC at the time of u64NanoTS. */
289	volatile uint64_t u64TSC;
290	/** Current CPU Frequency. */
291	volatile uint64_t u64CpuHz;
292	/** The TSC delta with reference to the master TSC, subtract from RDTSC. */
293	volatile int64_t i64TSCDelta;
294	/** Number of errors during updating.
295	* Typical errors are under/overflows. */
296	volatile uint32_t cErrors;
297	/** Index of the head item in au32TSCHistory. */
298	volatile uint32_t iTSCHistoryHead;
299	/** Array of recent TSC interval deltas.
300	* The most recent item is at index iTSCHistoryHead.
301	* This history is used to calculate u32UpdateIntervalTSC.
302	*/
303	volatile uint32_t au32TSCHistory[8];
304	/** The interval between the last two NanoTS updates. (experiment for now) */
305	volatile uint32_t u32PrevUpdateIntervalNS;
306
307	/** Reserved for future per processor data. */
308	volatile uint32_t u32Reserved;
309	/** The TSC value read while doing TSC delta measurements across CPUs. */
310	volatile uint64_t u64TSCSample;
311	/** Reserved for future per processor data. */
312	volatile uint32_t au32Reserved1[3];
313
314	/** The CPU state. */
315	SUPGIPCPUSTATE volatile enmState;
316	/** The host CPU ID of this CPU (the SUPGIPCPU is indexed by APIC ID). */
317	RTCPUID idCpu;
318	/** The CPU set index of this CPU. */
319	int16_t iCpuSet;
320	/** CPU group number (always zero, except on windows). */
321	uint16_t iCpuGroup;
322	/** CPU group member number (same as iCpuSet, except on windows). */
323	uint16_t iCpuGroupMember;
324	/** The APIC ID of this CPU. */
325	uint16_t idApic;
326	/** @todo Add topology/NUMA info. */
327	uint32_t iReservedForNumaNode;
328	} SUPGIPCPU;
329	AssertCompileSize(RTCPUID, 4);
330	AssertCompileSize(SUPGIPCPU, 128);
331	AssertCompileMemberAlignment(SUPGIPCPU, u64NanoTS, 8);
332	AssertCompileMemberAlignment(SUPGIPCPU, u64TSC, 8);
333	AssertCompileMemberAlignment(SUPGIPCPU, u64TSCSample, 8);
334
335	/** Pointer to per cpu data.
336	* @remark there is no const version of this typedef, see g_pSUPGlobalInfoPage for details. */
337	typedef SUPGIPCPU *PSUPGIPCPU;
338
339	/**
340	* CPU group information.
341	* @remarks Windows only.
342	*/
343	typedef struct SUPGIPCPUGROUP
344	{
345	/** Current number of CPUs in this group. */
346	uint16_t volatile cMembers;
347	/** Maximum number of CPUs in the group. */
348	uint16_t cMaxMembers;
349	/** The CPU set index of the members. This table has cMaxMembers entries.
350	* @note For various reasons, entries from cMembers and up to cMaxMembers are
351	* may change as the host OS does set dynamic assignments during CPU
352	* hotplugging. */
353	int16_t aiCpuSetIdxs[1];
354	} SUPGIPCPUGROUP;
355	/** Pointer to a GIP CPU group structure. */
356	typedef SUPGIPCPUGROUP *PSUPGIPCPUGROUP;
357	/** Pointer to a const GIP CPU group structure. */
358	typedef SUPGIPCPUGROUP const *PCSUPGIPCPUGROUP;
359
360	/**
361	* The rules concerning the applicability of SUPGIPCPU::i64TscDelta.
362	*/
363	typedef enum SUPGIPUSETSCDELTA
364	{
365	/** Value for SUPGIPMODE_ASYNC_TSC. */
366	SUPGIPUSETSCDELTA_NOT_APPLICABLE = 0,
367	/** The OS specific part of SUPDrv (or the user) claims the TSC is as
368	* good as zero. */
369	SUPGIPUSETSCDELTA_ZERO_CLAIMED,
370	/** The differences in RDTSC output between the CPUs/cores/threads should
371	* be considered zero for all practical purposes. */
372	SUPGIPUSETSCDELTA_PRACTICALLY_ZERO,
373	/** The differences in RDTSC output between the CPUs/cores/threads are a few
374	* hundred ticks or less. (Probably not worth calling ASMGetApicId two times
375	* just to apply deltas.) */
376	SUPGIPUSETSCDELTA_ROUGHLY_ZERO,
377	/** Significant differences in RDTSC output between the CPUs/cores/threads,
378	* deltas must be applied. */
379	SUPGIPUSETSCDELTA_NOT_ZERO,
380	/** End of valid values (exclusive). */
381	SUPGIPUSETSCDELTA_END,
382	/** Make sure the type is 32-bit sized. */
383	SUPGIPUSETSCDELTA_32BIT_HACK = 0x7fffffff
384	} SUPGIPUSETSCDELTA;
385
386
387	/** @name SUPGIPGETCPU_XXX - methods that aCPUs can be indexed.
388	*
389	* @note Linux offers information via selector 0x78, and Windows via selector
390	* 0x53. But since they both support RDTSCP as well, and because most
391	* CPUs now have RDTSCP, we prefer it over LSL. We can implement more
392	* alternatives if it becomes necessary.
393	*
394	* @{
395	*/
396	/** Use ASMGetApicId (or equivalent) and translate the result via
397	* aiCpuFromApicId. */
398	#define SUPGIPGETCPU_APIC_ID RT_BIT_32(0)
399	/** Use RDTSCP and translate the first RTCPUSET_MAX_CPUS of ECX via
400	* aiCpuFromCpuSetIdx.
401	*
402	* Linux stores the RTMpCpuId() value in ECX[11:0] and NUMA node number in
403	* ECX[12:31]. Solaris only stores RTMpCpuId() in ECX. On both systems
404	* RTMpCpuId() == RTMpCpuIdToSetIndex(RTMpCpuId()). RTCPUSET_MAX_CPUS is
405	* currently 64, 256 or 1024 in size, which lower than
406	* 4096, so there shouldn't be any range issues. */
407	#define SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS RT_BIT_32(1)
408	/** Subtract the max IDT size from IDTR.LIMIT, extract the
409	* first RTCPUSET_MAX_CPUS and translate it via aiCpuFromCpuSetIdx.
410	*
411	* Darwin stores the RTMpCpuId() (== RTMpCpuIdToSetIndex(RTMpCpuId()))
412	* value in the IDT limit. The masking is a precaution against what linux
413	* does with RDTSCP. */
414	#define SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS RT_BIT_32(2)
415	/** Windows specific RDTSCP variant, where CH gives you the group and CL gives
416	* you the CPU number within that group.
417	*
418	* Use SUPGLOBALINFOPAGE::aidFirstCpuFromCpuGroup to get the group base CPU set
419	* index, then translate the sum of thru aiCpuFromCpuSetIdx to find the aCPUs
420	* entry.
421	*
422	* @note The group number is actually 16-bit wide (ECX[23:8]), but we simplify
423	* it since we only support 256 CPUs/groups at the moment.
424	*/
425	#define SUPGIPGETCPU_RDTSCP_GROUP_IN_CH_NUMBER_IN_CL RT_BIT_32(3)
426	/** Can use CPUID[0xb].EDX and translate the result via aiCpuFromApicId. */
427	#define SUPGIPGETCPU_APIC_ID_EXT_0B RT_BIT_32(4)
428	/** Can use CPUID[0x8000001e].EAX and translate the result via aiCpuFromApicId. */
429	#define SUPGIPGETCPU_APIC_ID_EXT_8000001E RT_BIT_32(5)
430	/** @} */
431
432	/** @def SUPGIP_MAX_CPU_GROUPS
433	* Maximum number of CPU groups. */
434	#if RTCPUSET_MAX_CPUS >= 256
435	# define SUPGIP_MAX_CPU_GROUPS 256
436	#else
437	# define SUPGIP_MAX_CPU_GROUPS RTCPUSET_MAX_CPUS
438	#endif
439
440	/**
441	* Global Information Page.
442	*
443	* This page contains useful information and can be mapped into any
444	* process or VM. It can be accessed thru the g_pSUPGlobalInfoPage
445	* pointer when a session is open.
446	*/
447	typedef struct SUPGLOBALINFOPAGE
448	{
449	/** Magic (SUPGLOBALINFOPAGE_MAGIC). */
450	uint32_t u32Magic;
451	/** The GIP version. */
452	uint32_t u32Version;
453
454	/** The GIP update mode, see SUPGIPMODE. */
455	uint32_t u32Mode;
456	/** The number of entries in the CPU table.
457	* (This can work as RTMpGetArraySize().) */
458	uint16_t cCpus;
459	/** The size of the GIP in pages. */
460	uint16_t cPages;
461	/** The update frequency of the of the NanoTS. */
462	volatile uint32_t u32UpdateHz;
463	/** The update interval in nanoseconds. (10^9 / u32UpdateHz) */
464	volatile uint32_t u32UpdateIntervalNS;
465	/** The timestamp of the last time we update the update frequency. */
466	volatile uint64_t u64NanoTSLastUpdateHz;
467	/** The TSC frequency of the system. */
468	uint64_t u64CpuHz;
469	/** The number of CPUs that are online. */
470	volatile uint16_t cOnlineCpus;
471	/** The number of CPUs present in the system. */
472	volatile uint16_t cPresentCpus;
473	/** The highest number of CPUs possible. */
474	uint16_t cPossibleCpus;
475	/** The highest number of CPU groups possible. */
476	uint16_t cPossibleCpuGroups;
477	/** The max CPU ID (RTMpGetMaxCpuId). */
478	RTCPUID idCpuMax;
479	/** The applicability of SUPGIPCPU::i64TscDelta. */
480	SUPGIPUSETSCDELTA enmUseTscDelta;
481	/** Mask of SUPGIPGETCPU_XXX values that indicates different ways that aCPU
482	* can be accessed from ring-3 and raw-mode context. */
483	uint32_t fGetGipCpu;
484	/** GIP flags, see SUPGIP_FLAGS_XXX. */
485	volatile uint32_t fFlags;
486	/** The set of online CPUs. */
487	RTCPUSET OnlineCpuSet;
488	#if RTCPUSET_MAX_CPUS < 1024
489	uint64_t abOnlineCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
490	#endif
491	/** The set of present CPUs. */
492	RTCPUSET PresentCpuSet;
493	#if RTCPUSET_MAX_CPUS < 1024
494	uint64_t abPresentCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
495	#endif
496	/** The set of possible CPUs. */
497	RTCPUSET PossibleCpuSet;
498	#if RTCPUSET_MAX_CPUS < 1024
499	uint64_t abPossibleCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
500	#endif
501
502	/** Padding / reserved space for future data. */
503	uint32_t au32Padding1[48];
504
505	/** Table indexed by the CPU APIC ID to get the CPU table index. */
506	uint16_t aiCpuFromApicId[4096];
507	/** CPU set index to CPU table index. */
508	uint16_t aiCpuFromCpuSetIdx[1024];
509	/** Table indexed by CPU group to containing offsets to SUPGIPCPUGROUP
510	* structures, invalid entries are set to UINT32_MAX. The offsets are relative
511	* to the start of this structure.
512	* @note Windows only. The other hosts sets all entries to UINT32_MAX! */
513	uint32_t aoffCpuGroup[SUPGIP_MAX_CPU_GROUPS];
514
515	/** Array of per-cpu data.
516	* This is index by ApicId via the aiCpuFromApicId table.
517	*
518	* The clock and frequency information is updated for all CPUs if @c u32Mode
519	* is SUPGIPMODE_ASYNC_TSC. If @c u32Mode is SUPGIPMODE_SYNC_TSC only the first
520	* entry is updated. If @c u32Mode is SUPGIPMODE_SYNC_TSC the TSC frequency in
521	* @c u64CpuHz is copied to all CPUs. */
522	SUPGIPCPU aCPUs[1];
523	} SUPGLOBALINFOPAGE;
524	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, u64NanoTSLastUpdateHz, 8);
525	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, OnlineCpuSet, 64);
526	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, PresentCpuSet, 64);
527	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, PossibleCpuSet, 64);
528	#if defined(RT_ARCH_SPARC) \|\| defined(RT_ARCH_SPARC64) /* ?? needed ?? */
529	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 32);
530	#else
531	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 128);
532	#endif
533
534	/** Pointer to the global info page.
535	* @remark there is no const version of this typedef, see g_pSUPGlobalInfoPage for details. */
536	typedef SUPGLOBALINFOPAGE *PSUPGLOBALINFOPAGE;
537
538
539	/** The value of the SUPGLOBALINFOPAGE::u32Magic field. (Soryo Fuyumi) */
540	#define SUPGLOBALINFOPAGE_MAGIC 0x19590106
541	/** The GIP version.
542	* Upper 16 bits is the major version. Major version is only changed with
543	* incompatible changes in the GIP. */
544	#define SUPGLOBALINFOPAGE_VERSION 0x000a0000
545
546	/**
547	* SUPGLOBALINFOPAGE::u32Mode values.
548	*/
549	typedef enum SUPGIPMODE
550	{
551	/** The usual invalid null entry. */
552	SUPGIPMODE_INVALID = 0,
553	/** The TSC of the cores and cpus in the system is in sync. */
554	SUPGIPMODE_SYNC_TSC,
555	/** Each core has it's own TSC. */
556	SUPGIPMODE_ASYNC_TSC,
557	/** The TSC of the cores are non-stop and have a constant frequency. */
558	SUPGIPMODE_INVARIANT_TSC,
559	/** End of valid GIP mode values (exclusive). */
560	SUPGIPMODE_END,
561	/** The usual 32-bit hack. */
562	SUPGIPMODE_32BIT_HACK = 0x7fffffff
563	} SUPGIPMODE;
564
565	/** Pointer to the Global Information Page.
566	*
567	* This pointer is valid as long as SUPLib has a open session. Anyone using
568	* the page must treat this pointer as highly volatile and not trust it beyond
569	* one transaction.
570	*
571	* @remark The GIP page is read-only to everyone but the support driver and
572	* is actually mapped read only everywhere but in ring-0. However
573	* it is not marked 'const' as this might confuse compilers into
574	* thinking that values doesn't change even if members are marked
575	* as volatile. Thus, there is no PCSUPGLOBALINFOPAGE type.
576	*/
577	#if defined(IN_SUP_R3) \|\| defined(IN_SUP_R0)
578	extern DECLEXPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
579
580	#elif !defined(IN_RING0) \|\| defined(RT_OS_WINDOWS) \|\| defined(RT_OS_SOLARIS)
581	extern DECLIMPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
582
583	#else /* IN_RING0 && !RT_OS_WINDOWS */
584	# if !defined(__GNUC__) \|\| defined(RT_OS_DARWIN) \|\| !defined(RT_ARCH_AMD64)
585	# define g_pSUPGlobalInfoPage (&g_SUPGlobalInfoPage)
586	# else
587	# define g_pSUPGlobalInfoPage (SUPGetGIPHlp())
588	/** Workaround for ELF+GCC problem on 64-bit hosts.
589	* (GCC emits a mov with a R_X86_64_32 reloc, we need R_X86_64_64.) */
590	DECLINLINE(PSUPGLOBALINFOPAGE) SUPGetGIPHlp(void)
591	{
592	PSUPGLOBALINFOPAGE pGIP;
593	__asm__ __volatile__ ("movabs $g_SUPGlobalInfoPage,%0\n\t"
594	: "=a" (pGIP));
595	return pGIP;
596	}
597	# endif
598	/** The GIP.
599	* We save a level of indirection by exporting the GIP instead of a variable
600	* pointing to it. */
601	extern DECLIMPORT(SUPGLOBALINFOPAGE) g_SUPGlobalInfoPage;
602	#endif
603
604	/**
605	* Gets the GIP pointer.
606	*
607	* @returns Pointer to the GIP or NULL.
608	*/
609	SUPDECL(PSUPGLOBALINFOPAGE) SUPGetGIP(void);
610
611	/** @name SUPGIP_FLAGS_XXX - SUPR3GipSetFlags flags.
612	* @{ */
613	/** Enable GIP test mode. */
614	#define SUPGIP_FLAGS_TESTING_ENABLE RT_BIT_32(0)
615	/** Valid mask of flags that can be set through the ioctl. */
616	#define SUPGIP_FLAGS_VALID_MASK RT_BIT_32(0)
617	/** GIP test mode needs to be checked (e.g. when enabled or being disabled). */
618	#define SUPGIP_FLAGS_TESTING RT_BIT_32(24)
619	/** Prepare to start GIP test mode. */
620	#define SUPGIP_FLAGS_TESTING_START RT_BIT_32(25)
621	/** Prepare to stop GIP test mode. */
622	#define SUPGIP_FLAGS_TESTING_STOP RT_BIT_32(26)
623	/** @} */
624
625	/** @internal */
626	SUPDECL(uint64_t) SUPGetCpuHzFromGipForAsyncMode(PSUPGLOBALINFOPAGE pGip);
627	SUPDECL(bool) SUPIsTscFreqCompatible(uint64_t uCpuHz, uint64_t *puGipCpuHz, bool fRelax);
628	SUPDECL(bool) SUPIsTscFreqCompatibleEx(uint64_t uBaseCpuHz, uint64_t uCpuHz, bool fRelax);
629
630
631	/**
632	* Gets the TSC frequency of the calling CPU.
633	*
634	* @returns TSC frequency, UINT64_MAX on failure (asserted).
635	* @param pGip The GIP pointer.
636	*/
637	DECLINLINE(uint64_t) SUPGetCpuHzFromGip(PSUPGLOBALINFOPAGE pGip)
638	{
639	if (RT_LIKELY( pGip
640	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
641	{
642	switch (pGip->u32Mode)
643	{
644	case SUPGIPMODE_INVARIANT_TSC:
645	case SUPGIPMODE_SYNC_TSC:
646	return pGip->aCPUs[0].u64CpuHz;
647	case SUPGIPMODE_ASYNC_TSC:
648	return SUPGetCpuHzFromGipForAsyncMode(pGip);
649	default: break; /* shut up gcc */
650	}
651	}
652	AssertFailed();
653	return UINT64_MAX;
654	}
655
656
657	/**
658	* Gets the TSC frequency of the specified CPU.
659	*
660	* @returns TSC frequency, UINT64_MAX on failure (asserted).
661	* @param pGip The GIP pointer.
662	* @param iCpuSet The CPU set index of the CPU in question.
663	*/
664	DECLINLINE(uint64_t) SUPGetCpuHzFromGipBySetIndex(PSUPGLOBALINFOPAGE pGip, uint32_t iCpuSet)
665	{
666	if (RT_LIKELY( pGip
667	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
668	{
669	switch (pGip->u32Mode)
670	{
671	case SUPGIPMODE_INVARIANT_TSC:
672	case SUPGIPMODE_SYNC_TSC:
673	return pGip->aCPUs[0].u64CpuHz;
674	case SUPGIPMODE_ASYNC_TSC:
675	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
676	{
677	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
678	if (RT_LIKELY(iCpu < pGip->cCpus))
679	return pGip->aCPUs[iCpu].u64CpuHz;
680	}
681	break;
682	default: break; /* shut up gcc */
683	}
684	}
685	AssertFailed();
686	return UINT64_MAX;
687	}
688
689
690	/**
691	* Gets the pointer to the per CPU data for a CPU given by its set index.
692	*
693	* @returns Pointer to the corresponding per CPU structure, or NULL if invalid.
694	* @param pGip The GIP pointer.
695	* @param iCpuSet The CPU set index of the CPU which we want.
696	*/
697	DECLINLINE(PSUPGIPCPU) SUPGetGipCpuBySetIndex(PSUPGLOBALINFOPAGE pGip, uint32_t iCpuSet)
698	{
699	if (RT_LIKELY( pGip
700	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
701	{
702	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
703	{
704	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
705	if (RT_LIKELY(iCpu < pGip->cCpus))
706	return &pGip->aCPUs[iCpu];
707	}
708	}
709	return NULL;
710	}
711
712
713	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
714
715	/** @internal */
716	SUPDECL(uint64_t) SUPReadTscWithDelta(PSUPGLOBALINFOPAGE pGip);
717
718	/**
719	* Read the host TSC value and applies the TSC delta if appropriate.
720	*
721	* @returns the TSC value.
722	* @remarks Requires GIP to be initialized and valid.
723	*/
724	DECLINLINE(uint64_t) SUPReadTsc(void)
725	{
726	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
727	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
728	return ASMReadTSC();
729	return SUPReadTscWithDelta(pGip);
730	}
731
732	#endif /* X86 \|\| AMD64 */
733
734	/** @internal */
735	SUPDECL(uint64_t) SUPGetTscDeltaSlow(PSUPGLOBALINFOPAGE pGip);
736
737	/**
738	* Gets the TSC delta for the current CPU.
739	*
740	* @returns The TSC delta value (will not return the special INT64_MAX value).
741	* @remarks Requires GIP to be initialized and valid.
742	*/
743	DECLINLINE(int64_t) SUPGetTscDelta(void)
744	{
745	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
746	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
747	return 0;
748	return SUPGetTscDeltaSlow(pGip);
749	}
750
751
752	/**
753	* Gets the TSC delta for a given CPU.
754	*
755	* @returns The TSC delta value (will not return the special INT64_MAX value).
756	* @param iCpuSet The CPU set index of the CPU which TSC delta we want.
757	* @remarks Requires GIP to be initialized and valid.
758	*/
759	DECLINLINE(int64_t) SUPGetTscDeltaByCpuSetIndex(uint32_t iCpuSet)
760	{
761	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
762	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
763	return 0;
764	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
765	{
766	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
767	if (RT_LIKELY(iCpu < pGip->cCpus))
768	{
769	int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta;
770	if (iTscDelta != INT64_MAX)
771	return iTscDelta;
772	}
773	}
774	AssertFailed();
775	return 0;
776	}
777
778
779	/**
780	* Checks if the TSC delta is available for a given CPU (if TSC-deltas are
781	* relevant).
782	*
783	* @returns true if it's okay to read the TSC, false otherwise.
784	*
785	* @param iCpuSet The CPU set index of the CPU which TSC delta we check.
786	* @remarks Requires GIP to be initialized and valid.
787	*/
788	DECLINLINE(bool) SUPIsTscDeltaAvailableForCpuSetIndex(uint32_t iCpuSet)
789	{
790	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
791	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
792	return true;
793	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
794	{
795	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
796	if (RT_LIKELY(iCpu < pGip->cCpus))
797	{
798	int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta;
799	if (iTscDelta != INT64_MAX)
800	return true;
801	}
802	}
803	return false;
804	}
805
806
807	/**
808	* Gets the descriptive GIP mode name.
809	*
810	* @returns The name.
811	* @param pGip Pointer to the GIP.
812	*/
813	DECLINLINE(const char *) SUPGetGIPModeName(PSUPGLOBALINFOPAGE pGip)
814	{
815	AssertReturn(pGip, NULL);
816	switch (pGip->u32Mode)
817	{
818	case SUPGIPMODE_INVARIANT_TSC: return "Invariant";
819	case SUPGIPMODE_SYNC_TSC: return "Synchronous";
820	case SUPGIPMODE_ASYNC_TSC: return "Asynchronous";
821	case SUPGIPMODE_INVALID: return "Invalid";
822	default: return "???";
823	}
824	}
825
826
827	/**
828	* Gets the descriptive TSC-delta enum name.
829	*
830	* @returns The name.
831	* @param pGip Pointer to the GIP.
832	*/
833	DECLINLINE(const char *) SUPGetGIPTscDeltaModeName(PSUPGLOBALINFOPAGE pGip)
834	{
835	AssertReturn(pGip, NULL);
836	switch (pGip->enmUseTscDelta)
837	{
838	case SUPGIPUSETSCDELTA_NOT_APPLICABLE: return "Not Applicable";
839	case SUPGIPUSETSCDELTA_ZERO_CLAIMED: return "Zero Claimed";
840	case SUPGIPUSETSCDELTA_PRACTICALLY_ZERO: return "Practically Zero";
841	case SUPGIPUSETSCDELTA_ROUGHLY_ZERO: return "Roughly Zero";
842	case SUPGIPUSETSCDELTA_NOT_ZERO: return "Not Zero";
843	default: return "???";
844	}
845	}
846
847
848	/**
849	* Request for generic VMMR0Entry calls.
850	*/
851	typedef struct SUPVMMR0REQHDR
852	{
853	/** The magic. (SUPVMMR0REQHDR_MAGIC) */
854	uint32_t u32Magic;
855	/** The size of the request. */
856	uint32_t cbReq;
857	} SUPVMMR0REQHDR;
858	/** Pointer to a ring-0 request header. */
859	typedef SUPVMMR0REQHDR *PSUPVMMR0REQHDR;
860	/** the SUPVMMR0REQHDR::u32Magic value (Ethan Iverson - The Bad Plus). */
861	#define SUPVMMR0REQHDR_MAGIC UINT32_C(0x19730211)
862
863
864	/** For the fast ioctl path.
865	* @{
866	*/
867	/** @see VMMR0_DO_HM_RUN. */
868	#define SUP_VMMR0_DO_HM_RUN 0
869	/** @see VMMR0_DO_NEM_RUN */
870	#define SUP_VMMR0_DO_NEM_RUN 1
871	/** @see VMMR0_DO_NOP */
872	#define SUP_VMMR0_DO_NOP 2
873	/** @} */
874
875	/** SUPR3QueryVTCaps capability flags.
876	* @{
877	*/
878	/** AMD-V support. */
879	#define SUPVTCAPS_AMD_V RT_BIT(0)
880	/** VT-x support. */
881	#define SUPVTCAPS_VT_X RT_BIT(1)
882	/** Nested paging is supported. */
883	#define SUPVTCAPS_NESTED_PAGING RT_BIT(2)
884	/** VT-x: Unrestricted guest execution is supported. */
885	#define SUPVTCAPS_VTX_UNRESTRICTED_GUEST RT_BIT(3)
886	/** VT-x: VMCS shadowing is supported. */
887	#define SUPVTCAPS_VTX_VMCS_SHADOWING RT_BIT(4)
888	/** @} */
889
890	/**
891	* Request for generic FNSUPR0SERVICEREQHANDLER calls.
892	*/
893	typedef struct SUPR0SERVICEREQHDR
894	{
895	/** The magic. (SUPR0SERVICEREQHDR_MAGIC) */
896	uint32_t u32Magic;
897	/** The size of the request. */
898	uint32_t cbReq;
899	} SUPR0SERVICEREQHDR;
900	/** Pointer to a ring-0 service request header. */
901	typedef SUPR0SERVICEREQHDR *PSUPR0SERVICEREQHDR;
902	/** the SUPVMMR0REQHDR::u32Magic value (Esbjoern Svensson - E.S.P.). */
903	#define SUPR0SERVICEREQHDR_MAGIC UINT32_C(0x19640416)
904
905
906	/**
907	* Creates a single release event semaphore.
908	*
909	* @returns VBox status code.
910	* @param pSession The session handle of the caller.
911	* @param phEvent Where to return the handle to the event semaphore.
912	*/
913	SUPDECL(int) SUPSemEventCreate(PSUPDRVSESSION pSession, PSUPSEMEVENT phEvent);
914
915	/**
916	* Closes a single release event semaphore handle.
917	*
918	* @returns VBox status code.
919	* @retval VINF_OBJECT_DESTROYED if the semaphore was destroyed.
920	* @retval VINF_SUCCESS if the handle was successfully closed but the semaphore
921	* object remained alive because of other references.
922	*
923	* @param pSession The session handle of the caller.
924	* @param hEvent The handle. Nil is quietly ignored.
925	*/
926	SUPDECL(int) SUPSemEventClose(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent);
927
928	/**
929	* Signals a single release event semaphore.
930	*
931	* @returns VBox status code.
932	* @param pSession The session handle of the caller.
933	* @param hEvent The semaphore handle.
934	*/
935	SUPDECL(int) SUPSemEventSignal(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent);
936
937	#ifdef IN_RING0
938	/**
939	* Waits on a single release event semaphore, not interruptible.
940	*
941	* @returns VBox status code.
942	* @param pSession The session handle of the caller.
943	* @param hEvent The semaphore handle.
944	* @param cMillies The number of milliseconds to wait.
945	* @remarks Not available in ring-3.
946	*/
947	SUPDECL(int) SUPSemEventWait(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint32_t cMillies);
948	#endif
949
950	/**
951	* Waits on a single release event semaphore, interruptible.
952	*
953	* @returns VBox status code.
954	* @param pSession The session handle of the caller.
955	* @param hEvent The semaphore handle.
956	* @param cMillies The number of milliseconds to wait.
957	*/
958	SUPDECL(int) SUPSemEventWaitNoResume(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint32_t cMillies);
959
960	/**
961	* Waits on a single release event semaphore, interruptible.
962	*
963	* @returns VBox status code.
964	* @param pSession The session handle of the caller.
965	* @param hEvent The semaphore handle.
966	* @param uNsTimeout The deadline given on the RTTimeNanoTS() clock.
967	*/
968	SUPDECL(int) SUPSemEventWaitNsAbsIntr(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint64_t uNsTimeout);
969
970	/**
971	* Waits on a single release event semaphore, interruptible.
972	*
973	* @returns VBox status code.
974	* @param pSession The session handle of the caller.
975	* @param hEvent The semaphore handle.
976	* @param cNsTimeout The number of nanoseconds to wait.
977	*/
978	SUPDECL(int) SUPSemEventWaitNsRelIntr(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint64_t cNsTimeout);
979
980	/**
981	* Gets the best timeout resolution that SUPSemEventWaitNsAbsIntr and
982	* SUPSemEventWaitNsAbsIntr can do.
983	*
984	* @returns The resolution in nanoseconds.
985	* @param pSession The session handle of the caller.
986	*/
987	SUPDECL(uint32_t) SUPSemEventGetResolution(PSUPDRVSESSION pSession);
988
989
990	/**
991	* Creates a multiple release event semaphore.
992	*
993	* @returns VBox status code.
994	* @param pSession The session handle of the caller.
995	* @param phEventMulti Where to return the handle to the event semaphore.
996	*/
997	SUPDECL(int) SUPSemEventMultiCreate(PSUPDRVSESSION pSession, PSUPSEMEVENTMULTI phEventMulti);
998
999	/**
1000	* Closes a multiple release event semaphore handle.
1001	*
1002	* @returns VBox status code.
1003	* @retval VINF_OBJECT_DESTROYED if the semaphore was destroyed.
1004	* @retval VINF_SUCCESS if the handle was successfully closed but the semaphore
1005	* object remained alive because of other references.
1006	*
1007	* @param pSession The session handle of the caller.
1008	* @param hEventMulti The handle. Nil is quietly ignored.
1009	*/
1010	SUPDECL(int) SUPSemEventMultiClose(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1011
1012	/**
1013	* Signals a multiple release event semaphore.
1014	*
1015	* @returns VBox status code.
1016	* @param pSession The session handle of the caller.
1017	* @param hEventMulti The semaphore handle.
1018	*/
1019	SUPDECL(int) SUPSemEventMultiSignal(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1020
1021	/**
1022	* Resets a multiple release event semaphore.
1023	*
1024	* @returns VBox status code.
1025	* @param pSession The session handle of the caller.
1026	* @param hEventMulti The semaphore handle.
1027	*/
1028	SUPDECL(int) SUPSemEventMultiReset(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1029
1030	#ifdef IN_RING0
1031	/**
1032	* Waits on a multiple release event semaphore, not interruptible.
1033	*
1034	* @returns VBox status code.
1035	* @param pSession The session handle of the caller.
1036	* @param hEventMulti The semaphore handle.
1037	* @param cMillies The number of milliseconds to wait.
1038	* @remarks Not available in ring-3.
1039	*/
1040	SUPDECL(int) SUPSemEventMultiWait(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint32_t cMillies);
1041	#endif
1042
1043	/**
1044	* Waits on a multiple release event semaphore, interruptible.
1045	*
1046	* @returns VBox status code.
1047	* @param pSession The session handle of the caller.
1048	* @param hEventMulti The semaphore handle.
1049	* @param cMillies The number of milliseconds to wait.
1050	*/
1051	SUPDECL(int) SUPSemEventMultiWaitNoResume(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint32_t cMillies);
1052
1053	/**
1054	* Waits on a multiple release event semaphore, interruptible.
1055	*
1056	* @returns VBox status code.
1057	* @param pSession The session handle of the caller.
1058	* @param hEventMulti The semaphore handle.
1059	* @param uNsTimeout The deadline given on the RTTimeNanoTS() clock.
1060	*/
1061	SUPDECL(int) SUPSemEventMultiWaitNsAbsIntr(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint64_t uNsTimeout);
1062
1063	/**
1064	* Waits on a multiple release event semaphore, interruptible.
1065	*
1066	* @returns VBox status code.
1067	* @param pSession The session handle of the caller.
1068	* @param hEventMulti The semaphore handle.
1069	* @param cNsTimeout The number of nanoseconds to wait.
1070	*/
1071	SUPDECL(int) SUPSemEventMultiWaitNsRelIntr(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint64_t cNsTimeout);
1072
1073	/**
1074	* Gets the best timeout resolution that SUPSemEventMultiWaitNsAbsIntr and
1075	* SUPSemEventMultiWaitNsRelIntr can do.
1076	*
1077	* @returns The resolution in nanoseconds.
1078	* @param pSession The session handle of the caller.
1079	*/
1080	SUPDECL(uint32_t) SUPSemEventMultiGetResolution(PSUPDRVSESSION pSession);
1081
1082
1083	#ifdef IN_RING3
1084
1085	/** @defgroup grp_sup_r3 SUP Host Context Ring-3 API
1086	* @{
1087	*/
1088
1089	/**
1090	* Installs the support library.
1091	*
1092	* @returns VBox status code.
1093	*/
1094	SUPR3DECL(int) SUPR3Install(void);
1095
1096	/**
1097	* Uninstalls the support library.
1098	*
1099	* @returns VBox status code.
1100	*/
1101	SUPR3DECL(int) SUPR3Uninstall(void);
1102
1103	/**
1104	* Trusted main entry point.
1105	*
1106	* This is exported as "TrustedMain" by the dynamic libraries which contains the
1107	* "real" application binary for which the hardened stub is built. The entry
1108	* point is invoked upon successful initialization of the support library and
1109	* runtime.
1110	*
1111	* @returns main kind of exit code.
1112	* @param argc The argument count.
1113	* @param argv The argument vector.
1114	* @param envp The environment vector.
1115	*/
1116	typedef DECLCALLBACK(int) FNSUPTRUSTEDMAIN(int argc, char argv, char envp);
1117	/** Pointer to FNSUPTRUSTEDMAIN(). */
1118	typedef FNSUPTRUSTEDMAIN *PFNSUPTRUSTEDMAIN;
1119
1120	/** Which operation failed. */
1121	typedef enum SUPINITOP
1122	{
1123	/** Invalid. */
1124	kSupInitOp_Invalid = 0,
1125	/** Installation integrity error. */
1126	kSupInitOp_Integrity,
1127	/** Setuid related. */
1128	kSupInitOp_RootCheck,
1129	/** Driver related. */
1130	kSupInitOp_Driver,
1131	/** IPRT init related. */
1132	kSupInitOp_IPRT,
1133	/** Miscellaneous. */
1134	kSupInitOp_Misc,
1135	/** Place holder. */
1136	kSupInitOp_End
1137	} SUPINITOP;
1138
1139	/**
1140	* Trusted error entry point, optional.
1141	*
1142	* This is exported as "TrustedError" by the dynamic libraries which contains
1143	* the "real" application binary for which the hardened stub is built. The
1144	* hardened main() must specify SUPSECMAIN_FLAGS_TRUSTED_ERROR when calling
1145	* SUPR3HardenedMain.
1146	*
1147	* @param pszWhere Where the error occurred (function name).
1148	* @param enmWhat Which operation went wrong.
1149	* @param rc The status code.
1150	* @param pszMsgFmt Error message format string.
1151	* @param va The message format arguments.
1152	*/
1153	typedef DECLCALLBACK(void) FNSUPTRUSTEDERROR(const char *pszWhere, SUPINITOP enmWhat, int rc,
1154	const char *pszMsgFmt, va_list va) RT_IPRT_FORMAT_ATTR(4, 0);
1155	/** Pointer to FNSUPTRUSTEDERROR. */
1156	typedef FNSUPTRUSTEDERROR *PFNSUPTRUSTEDERROR;
1157
1158	/**
1159	* Secure main.
1160	*
1161	* This is used for the set-user-ID-on-execute binaries on unixy systems
1162	* and when using the open-vboxdrv-via-root-service setup on Windows.
1163	*
1164	* This function will perform the integrity checks of the VirtualBox
1165	* installation, open the support driver, open the root service (later),
1166	* and load the DLL corresponding to \a pszProgName and execute its main
1167	* function.
1168	*
1169	* @returns Return code appropriate for main().
1170	*
1171	* @param pszProgName The program name. This will be used to figure out which
1172	* DLL/SO/DYLIB to load and execute.
1173	* @param fFlags Flags.
1174	* @param argc The argument count.
1175	* @param argv The argument vector.
1176	* @param envp The environment vector.
1177	*/
1178	DECLHIDDEN(int) SUPR3HardenedMain(const char pszProgName, uint32_t fFlags, int argc, char argv, char *envp);
1179
1180	/** @name SUPR3HardenedMain flags.
1181	* @{ */
1182	/** Don't open the device. (Intended for VirtualBox without -startvm.) */
1183	#define SUPSECMAIN_FLAGS_DONT_OPEN_DEV RT_BIT_32(0)
1184	/** The hardened DLL has a "TrustedError" function (see FNSUPTRUSTEDERROR). */
1185	#define SUPSECMAIN_FLAGS_TRUSTED_ERROR RT_BIT_32(1)
1186	/** Hack for making VirtualBoxVM use VirtualBox.dylib on Mac OS X. */
1187	#define SUPSECMAIN_FLAGS_OSX_VM_APP RT_BIT_32(2)
1188	/** Program binary location mask. */
1189	#define SUPSECMAIN_FLAGS_LOC_MASK UINT32_C(0x00000010)
1190	/** Default binary location is the application binary directory. Does
1191	* not need to be given explicitly (it's 0). */
1192	#define SUPSECMAIN_FLAGS_LOC_APP_BIN UINT32_C(0x00000000)
1193	/** The binary is located in the testcase directory instead of the
1194	* default application binary directory. */
1195	#define SUPSECMAIN_FLAGS_LOC_TESTCASE UINT32_C(0x00000010)
1196	/** The first process. */
1197	#define SUPSECMAIN_FLAGS_FIRST_PROCESS UINT32_C(0x00000020)
1198	/** @} */
1199
1200	/**
1201	* Initializes the support library.
1202	*
1203	* Each successful call to SUPR3Init() or SUPR3InitEx must be countered by a
1204	* call to SUPR3Term(false).
1205	*
1206	* @returns VBox status code.
1207	* @param ppSession Where to store the session handle. Defaults to NULL.
1208	*/
1209	SUPR3DECL(int) SUPR3Init(PSUPDRVSESSION *ppSession);
1210
1211	/**
1212	* Initializes the support library, extended version.
1213	*
1214	* Each successful call to SUPR3Init() or SUPR3InitEx must be countered by a
1215	* call to SUPR3Term(false).
1216	*
1217	* @returns VBox status code.
1218	* @param fUnrestricted The desired access.
1219	* @param ppSession Where to store the session handle. Defaults to NULL.
1220	*/
1221	SUPR3DECL(int) SUPR3InitEx(bool fUnrestricted, PSUPDRVSESSION *ppSession);
1222
1223	/**
1224	* Terminates the support library.
1225	*
1226	* @returns VBox status code.
1227	* @param fForced Forced termination. This means to ignore the
1228	* init call count and just terminated.
1229	*/
1230	#ifdef __cplusplus
1231	SUPR3DECL(int) SUPR3Term(bool fForced = false);
1232	#else
1233	SUPR3DECL(int) SUPR3Term(int fForced);
1234	#endif
1235
1236	/**
1237	* Sets the ring-0 VM handle for use with fast IOCtls.
1238	*
1239	* @returns VBox status code.
1240	* @param pVMR0 The ring-0 VM handle.
1241	* NIL_RTR0PTR can be used to unset the handle when the
1242	* VM is about to be destroyed.
1243	*/
1244	SUPR3DECL(int) SUPR3SetVMForFastIOCtl(PVMR0 pVMR0);
1245
1246	/**
1247	* Calls the HC R0 VMM entry point.
1248	* See VMMR0Entry() for more details.
1249	*
1250	* @returns error code specific to uFunction.
1251	* @param pVMR0 Pointer to the Ring-0 (Host Context) mapping of the VM structure.
1252	* @param idCpu The virtual CPU ID.
1253	* @param uOperation Operation to execute.
1254	* @param pvArg Argument.
1255	*/
1256	SUPR3DECL(int) SUPR3CallVMMR0(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, void *pvArg);
1257
1258	/**
1259	* Variant of SUPR3CallVMMR0, except that this takes the fast ioclt path
1260	* regardsless of compile-time defaults.
1261	*
1262	* @returns VBox status code.
1263	* @param pVMR0 The ring-0 VM handle.
1264	* @param uOperation The operation; only the SUP_VMMR0_DO_* ones are valid.
1265	* @param idCpu The virtual CPU ID.
1266	*/
1267	SUPR3DECL(int) SUPR3CallVMMR0Fast(PVMR0 pVMR0, unsigned uOperation, VMCPUID idCpu);
1268
1269	/**
1270	* Calls the HC R0 VMM entry point, in a safer but slower manner than
1271	* SUPR3CallVMMR0. When entering using this call the R0 components can call
1272	* into the host kernel (i.e. use the SUPR0 and RT APIs).
1273	*
1274	* See VMMR0Entry() for more details.
1275	*
1276	* @returns error code specific to uFunction.
1277	* @param pVMR0 Pointer to the Ring-0 (Host Context) mapping of the VM structure.
1278	* @param idCpu The virtual CPU ID.
1279	* @param uOperation Operation to execute.
1280	* @param u64Arg Constant argument.
1281	* @param pReqHdr Pointer to a request header. Optional.
1282	* This will be copied in and out of kernel space. There currently is a size
1283	* limit on this, just below 4KB.
1284	*/
1285	SUPR3DECL(int) SUPR3CallVMMR0Ex(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr);
1286
1287	/**
1288	* Calls a ring-0 service.
1289	*
1290	* The operation and the request packet is specific to the service.
1291	*
1292	* @returns error code specific to uFunction.
1293	* @param pszService The service name.
1294	* @param cchService The length of the service name.
1295	* @param uOperation The request number.
1296	* @param u64Arg Constant argument.
1297	* @param pReqHdr Pointer to a request header. Optional.
1298	* This will be copied in and out of kernel space. There currently is a size
1299	* limit on this, just below 4KB.
1300	*/
1301	SUPR3DECL(int) SUPR3CallR0Service(const char *pszService, size_t cchService, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr);
1302
1303	/** Which logger. */
1304	typedef enum SUPLOGGER
1305	{
1306	SUPLOGGER_DEBUG = 1,
1307	SUPLOGGER_RELEASE
1308	} SUPLOGGER;
1309
1310	/**
1311	* Changes the settings of the specified ring-0 logger.
1312	*
1313	* @returns VBox status code.
1314	* @param enmWhich Which logger.
1315	* @param pszFlags The flags settings.
1316	* @param pszGroups The groups settings.
1317	* @param pszDest The destination specificier.
1318	*/
1319	SUPR3DECL(int) SUPR3LoggerSettings(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest);
1320
1321	/**
1322	* Creates a ring-0 logger instance.
1323	*
1324	* @returns VBox status code.
1325	* @param enmWhich Which logger to create.
1326	* @param pszFlags The flags settings.
1327	* @param pszGroups The groups settings.
1328	* @param pszDest The destination specificier.
1329	*/
1330	SUPR3DECL(int) SUPR3LoggerCreate(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest);
1331
1332	/**
1333	* Destroys a ring-0 logger instance.
1334	*
1335	* @returns VBox status code.
1336	* @param enmWhich Which logger.
1337	*/
1338	SUPR3DECL(int) SUPR3LoggerDestroy(SUPLOGGER enmWhich);
1339
1340	/**
1341	* Queries the paging mode of the host OS.
1342	*
1343	* @returns The paging mode.
1344	*/
1345	SUPR3DECL(SUPPAGINGMODE) SUPR3GetPagingMode(void);
1346
1347	/**
1348	* Allocate zero-filled pages.
1349	*
1350	* Use this to allocate a number of pages suitable for seeding / locking.
1351	* Call SUPR3PageFree() to free the pages once done with them.
1352	*
1353	* @returns VBox status.
1354	* @param cPages Number of pages to allocate.
1355	* @param ppvPages Where to store the base pointer to the allocated pages.
1356	*/
1357	SUPR3DECL(int) SUPR3PageAlloc(size_t cPages, void **ppvPages);
1358
1359	/**
1360	* Frees pages allocated with SUPR3PageAlloc().
1361	*
1362	* @returns VBox status.
1363	* @param pvPages Pointer returned by SUPR3PageAlloc().
1364	* @param cPages Number of pages that was allocated.
1365	*/
1366	SUPR3DECL(int) SUPR3PageFree(void *pvPages, size_t cPages);
1367
1368	/**
1369	* Allocate non-zeroed, locked, pages with user and, optionally, kernel
1370	* mappings.
1371	*
1372	* Use SUPR3PageFreeEx() to free memory allocated with this function.
1373	*
1374	* @returns VBox status code.
1375	* @param cPages The number of pages to allocate.
1376	* @param fFlags Flags, reserved. Must be zero.
1377	* @param ppvPages Where to store the address of the user mapping.
1378	* @param pR0Ptr Where to store the address of the kernel mapping.
1379	* NULL if no kernel mapping is desired.
1380	* @param paPages Where to store the physical addresses of each page.
1381	* Optional.
1382	*/
1383	SUPR3DECL(int) SUPR3PageAllocEx(size_t cPages, uint32_t fFlags, void **ppvPages, PRTR0PTR pR0Ptr, PSUPPAGE paPages);
1384
1385	/**
1386	* Maps a portion of a ring-3 only allocation into kernel space.
1387	*
1388	* @returns VBox status code.
1389	*
1390	* @param pvR3 The address SUPR3PageAllocEx return.
1391	* @param off Offset to start mapping at. Must be page aligned.
1392	* @param cb Number of bytes to map. Must be page aligned.
1393	* @param fFlags Flags, must be zero.
1394	* @param pR0Ptr Where to store the address on success.
1395	*
1396	*/
1397	SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr);
1398
1399	/**
1400	* Changes the protection of
1401	*
1402	* @returns VBox status code.
1403	* @retval VERR_NOT_SUPPORTED if the OS doesn't allow us to change page level
1404	* protection. See also RTR0MemObjProtect.
1405	*
1406	* @param pvR3 The ring-3 address SUPR3PageAllocEx returned.
1407	* @param R0Ptr The ring-0 address SUPR3PageAllocEx returned if it
1408	* is desired that the corresponding ring-0 page
1409	* mappings should change protection as well. Pass
1410	* NIL_RTR0PTR if the ring-0 pages should remain
1411	* unaffected.
1412	* @param off Offset to start at which to start chagning the page
1413	* level protection. Must be page aligned.
1414	* @param cb Number of bytes to change. Must be page aligned.
1415	* @param fProt The new page level protection, either a combination
1416	* of RTMEM_PROT_READ, RTMEM_PROT_WRITE and
1417	* RTMEM_PROT_EXEC, or just RTMEM_PROT_NONE.
1418	*/
1419	SUPR3DECL(int) SUPR3PageProtect(void *pvR3, RTR0PTR R0Ptr, uint32_t off, uint32_t cb, uint32_t fProt);
1420
1421	/**
1422	* Free pages allocated by SUPR3PageAllocEx.
1423	*
1424	* @returns VBox status code.
1425	* @param pvPages The address of the user mapping.
1426	* @param cPages The number of pages.
1427	*/
1428	SUPR3DECL(int) SUPR3PageFreeEx(void *pvPages, size_t cPages);
1429
1430	/**
1431	* Allocated memory with page aligned memory with a contiguous and locked physical
1432	* memory backing below 4GB.
1433	*
1434	* @returns Pointer to the allocated memory (virtual address).
1435	* *pHCPhys is set to the physical address of the memory.
1436	* If ppvR0 isn't NULL, *ppvR0 is set to the ring-0 mapping.
1437	* The returned memory must be freed using SUPR3ContFree().
1438	* @returns NULL on failure.
1439	* @param cPages Number of pages to allocate.
1440	* @param pR0Ptr Where to store the ring-0 mapping of the allocation. (optional)
1441	* @param pHCPhys Where to store the physical address of the memory block.
1442	*
1443	* @remark This 2nd version of this API exists because we're not able to map the
1444	* ring-3 mapping executable on WIN64. This is a serious problem in regard to
1445	* the world switchers.
1446	*/
1447	SUPR3DECL(void *) SUPR3ContAlloc(size_t cPages, PRTR0PTR pR0Ptr, PRTHCPHYS pHCPhys);
1448
1449	/**
1450	* Frees memory allocated with SUPR3ContAlloc().
1451	*
1452	* @returns VBox status code.
1453	* @param pv Pointer to the memory block which should be freed.
1454	* @param cPages Number of pages to be freed.
1455	*/
1456	SUPR3DECL(int) SUPR3ContFree(void *pv, size_t cPages);
1457
1458	/**
1459	* Allocated non contiguous physical memory below 4GB.
1460	*
1461	* The memory isn't zeroed.
1462	*
1463	* @returns VBox status code.
1464	* @returns NULL on failure.
1465	* @param cPages Number of pages to allocate.
1466	* @param ppvPages Where to store the pointer to the allocated memory.
1467	* The pointer stored here on success must be passed to
1468	* SUPR3LowFree when the memory should be released.
1469	* @param ppvPagesR0 Where to store the ring-0 pointer to the allocated memory. optional.
1470	* @param paPages Where to store the physical addresses of the individual pages.
1471	*/
1472	SUPR3DECL(int) SUPR3LowAlloc(size_t cPages, void **ppvPages, PRTR0PTR ppvPagesR0, PSUPPAGE paPages);
1473
1474	/**
1475	* Frees memory allocated with SUPR3LowAlloc().
1476	*
1477	* @returns VBox status code.
1478	* @param pv Pointer to the memory block which should be freed.
1479	* @param cPages Number of pages that was allocated.
1480	*/
1481	SUPR3DECL(int) SUPR3LowFree(void *pv, size_t cPages);
1482
1483	/**
1484	* Load a module into R0 HC.
1485	*
1486	* This will verify the file integrity in a similar manner as
1487	* SUPR3HardenedVerifyFile before loading it.
1488	*
1489	* @returns VBox status code.
1490	* @param pszFilename The path to the image file.
1491	* @param pszModule The module name. Max 32 bytes.
1492	* @param ppvImageBase Where to store the image address.
1493	* @param pErrInfo Where to return extended error information.
1494	* Optional.
1495	*/
1496	SUPR3DECL(int) SUPR3LoadModule(const char pszFilename, const char pszModule, void **ppvImageBase, PRTERRINFO pErrInfo);
1497
1498	/**
1499	* Load a module into R0 HC.
1500	*
1501	* This will verify the file integrity in a similar manner as
1502	* SUPR3HardenedVerifyFile before loading it.
1503	*
1504	* @returns VBox status code.
1505	* @param pszFilename The path to the image file.
1506	* @param pszModule The module name. Max 32 bytes.
1507	* @param pszSrvReqHandler The name of the service request handler entry
1508	* point. See FNSUPR0SERVICEREQHANDLER.
1509	* @param ppvImageBase Where to store the image address.
1510	*/
1511	SUPR3DECL(int) SUPR3LoadServiceModule(const char pszFilename, const char pszModule,
1512	const char pszSrvReqHandler, void *ppvImageBase);
1513
1514	/**
1515	* Frees a R0 HC module.
1516	*
1517	* @returns VBox status code.
1518	* @param pvImageBase The base address of the image to free.
1519	* @remark This will not actually 'free' the module, there are of course usage counting.
1520	*/
1521	SUPR3DECL(int) SUPR3FreeModule(void *pvImageBase);
1522
1523	/**
1524	* Lock down the module loader interface.
1525	*
1526	* This will lock down the module loader interface. No new modules can be
1527	* loaded and all loaded modules can no longer be freed.
1528	*
1529	* @returns VBox status code.
1530	* @param pErrInfo Where to return extended error information.
1531	* Optional.
1532	*/
1533	SUPR3DECL(int) SUPR3LockDownLoader(PRTERRINFO pErrInfo);
1534
1535	/**
1536	* Get the address of a symbol in a ring-0 module.
1537	*
1538	* @returns VBox status code.
1539	* @param pvImageBase The base address of the image to search.
1540	* @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
1541	* ordinal value rather than a string pointer.
1542	* @param ppvValue Where to store the symbol value.
1543	*/
1544	SUPR3DECL(int) SUPR3GetSymbolR0(void pvImageBase, const char pszSymbol, void **ppvValue);
1545
1546	/**
1547	* Load R0 HC VMM code.
1548	*
1549	* @returns VBox status code.
1550	* @deprecated Use SUPR3LoadModule(pszFilename, "VMMR0.r0", &pvImageBase)
1551	*/
1552	SUPR3DECL(int) SUPR3LoadVMM(const char *pszFilename);
1553
1554	/**
1555	* Unloads R0 HC VMM code.
1556	*
1557	* @returns VBox status code.
1558	* @deprecated Use SUPR3FreeModule().
1559	*/
1560	SUPR3DECL(int) SUPR3UnloadVMM(void);
1561
1562	/**
1563	* Get the physical address of the GIP.
1564	*
1565	* @returns VBox status code.
1566	* @param pHCPhys Where to store the physical address of the GIP.
1567	*/
1568	SUPR3DECL(int) SUPR3GipGetPhys(PRTHCPHYS pHCPhys);
1569
1570	/**
1571	* Initializes only the bits relevant for the SUPR3HardenedVerify* APIs.
1572	*
1573	* This is for users that don't necessarily need to initialize the whole of
1574	* SUPLib. There is no harm in calling this one more time.
1575	*
1576	* @returns VBox status code.
1577	* @remarks Currently not counted, so only call once.
1578	*/
1579	SUPR3DECL(int) SUPR3HardenedVerifyInit(void);
1580
1581	/**
1582	* Reverses the effect of SUPR3HardenedVerifyInit if SUPR3InitEx hasn't been
1583	* called.
1584	*
1585	* Ignored if the support library was initialized using SUPR3Init or
1586	* SUPR3InitEx.
1587	*
1588	* @returns VBox status code.
1589	*/
1590	SUPR3DECL(int) SUPR3HardenedVerifyTerm(void);
1591
1592	/**
1593	* Verifies the integrity of a file, and optionally opens it.
1594	*
1595	* The integrity check is for whether the file is suitable for loading into
1596	* the hypervisor or VM process. The integrity check may include verifying
1597	* the authenticode/elfsign/whatever signature of the file, which can take
1598	* a little while.
1599	*
1600	* @returns VBox status code. On failure it will have printed a LogRel message.
1601	*
1602	* @param pszFilename The file.
1603	* @param pszWhat For the LogRel on failure.
1604	* @param phFile Where to store the handle to the opened file. This is optional, pass NULL
1605	* if the file should not be opened.
1606	* @deprecated Write a new one.
1607	*/
1608	SUPR3DECL(int) SUPR3HardenedVerifyFile(const char pszFilename, const char pszWhat, PRTFILE phFile);
1609
1610	/**
1611	* Verifies the integrity of a the current process, including the image
1612	* location and that the invocation was absolute.
1613	*
1614	* This must currently be called after initializing the runtime. The intended
1615	* audience is set-uid-to-root applications, root services and similar.
1616	*
1617	* @returns VBox status code. On failure
1618	* message.
1619	* @param pszArgv0 The first argument to main().
1620	* @param fInternal Set this to @c true if this is an internal
1621	* VirtualBox application. Otherwise pass @c false.
1622	* @param pErrInfo Where to return extended error information.
1623	*/
1624	SUPR3DECL(int) SUPR3HardenedVerifySelf(const char *pszArgv0, bool fInternal, PRTERRINFO pErrInfo);
1625
1626	/**
1627	* Verifies the integrity of an installation directory.
1628	*
1629	* The integrity check verifies that the directory cannot be tampered with by
1630	* normal users on the system. On Unix this translates to root ownership and
1631	* no symbolic linking.
1632	*
1633	* @returns VBox status code. On failure a message will be stored in @a pszErr.
1634	*
1635	* @param pszDirPath The directory path.
1636	* @param fRecursive Whether the check should be recursive or
1637	* not. When set, all sub-directores will be checked,
1638	* including files (@a fCheckFiles is ignored).
1639	* @param fCheckFiles Whether to apply the same basic integrity check to
1640	* the files in the directory as the directory itself.
1641	* @param pErrInfo Where to return extended error information.
1642	* Optional.
1643	*/
1644	SUPR3DECL(int) SUPR3HardenedVerifyDir(const char *pszDirPath, bool fRecursive, bool fCheckFiles, PRTERRINFO pErrInfo);
1645
1646	/**
1647	* Verifies the integrity of a plug-in module.
1648	*
1649	* This is similar to SUPR3HardenedLdrLoad, except it does not load the module
1650	* and that the module does not have to be shipped with VirtualBox.
1651	*
1652	* @returns VBox status code. On failure a message will be stored in @a pszErr.
1653	*
1654	* @param pszFilename The filename of the plug-in module (nothing can be
1655	* omitted here).
1656	* @param pErrInfo Where to return extended error information.
1657	* Optional.
1658	*/
1659	SUPR3DECL(int) SUPR3HardenedVerifyPlugIn(const char *pszFilename, PRTERRINFO pErrInfo);
1660
1661	/**
1662	* Same as RTLdrLoad() but will verify the files it loads (hardened builds).
1663	*
1664	* Will add dll suffix if missing and try load the file.
1665	*
1666	* @returns iprt status code.
1667	* @param pszFilename Image filename. This must have a path.
1668	* @param phLdrMod Where to store the handle to the loaded module.
1669	* @param fFlags See RTLDRLOAD_FLAGS_XXX.
1670	* @param pErrInfo Where to return extended error information.
1671	* Optional.
1672	*/
1673	SUPR3DECL(int) SUPR3HardenedLdrLoad(const char *pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo);
1674
1675	/**
1676	* Same as RTLdrLoadAppPriv() but it will verify the files it loads (hardened
1677	* builds).
1678	*
1679	* Will add dll suffix to the file if missing, then look for it in the
1680	* architecture dependent application directory.
1681	*
1682	* @returns iprt status code.
1683	* @param pszFilename Image filename.
1684	* @param phLdrMod Where to store the handle to the loaded module.
1685	* @param fFlags See RTLDRLOAD_FLAGS_XXX.
1686	* @param pErrInfo Where to return extended error information.
1687	* Optional.
1688	*/
1689	SUPR3DECL(int) SUPR3HardenedLdrLoadAppPriv(const char *pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo);
1690
1691	/**
1692	* Same as RTLdrLoad() but will verify the files it loads (hardened builds).
1693	*
1694	* This differs from SUPR3HardenedLdrLoad() in that it can load modules from
1695	* extension packs and anything else safely installed on the system, provided
1696	* they pass the hardening tests.
1697	*
1698	* @returns iprt status code.
1699	* @param pszFilename The full path to the module, with extension.
1700	* @param phLdrMod Where to store the handle to the loaded module.
1701	* @param pErrInfo Where to return extended error information.
1702	* Optional.
1703	*/
1704	SUPR3DECL(int) SUPR3HardenedLdrLoadPlugIn(const char *pszFilename, PRTLDRMOD phLdrMod, PRTERRINFO pErrInfo);
1705
1706	/**
1707	* Check if the host kernel can run in VMX root mode.
1708	*
1709	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1710	* @param ppszWhy Where to return an explanatory message on failure.
1711	*/
1712	SUPR3DECL(int) SUPR3QueryVTxSupported(const char **ppszWhy);
1713
1714	/**
1715	* Return VT-x/AMD-V capabilities.
1716	*
1717	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1718	* @param pfCaps Pointer to capability dword (out).
1719	* @todo Intended for main, which means we need to relax the privilege requires
1720	* when accessing certain vboxdrv functions.
1721	*/
1722	SUPR3DECL(int) SUPR3QueryVTCaps(uint32_t *pfCaps);
1723
1724	/**
1725	* Check if NEM is supported when no VT-x/AMD-V is indicated by the CPU.
1726	*
1727	* This is really only for the windows case where we're running in a root
1728	* partition and isn't allowed to use the hardware directly.
1729	*
1730	* @returns True if NEM API support, false if not.
1731	*/
1732	SUPR3DECL(bool) SUPR3IsNemSupportedWhenNoVtxOrAmdV(void);
1733
1734	/**
1735	* Open the tracer.
1736	*
1737	* @returns VBox status code.
1738	* @param uCookie Cookie identifying the tracer we expect to talk to.
1739	* @param uArg Tracer specific open argument.
1740	*/
1741	SUPR3DECL(int) SUPR3TracerOpen(uint32_t uCookie, uintptr_t uArg);
1742
1743	/**
1744	* Closes the tracer.
1745	*
1746	* @returns VBox status code.
1747	*/
1748	SUPR3DECL(int) SUPR3TracerClose(void);
1749
1750	/**
1751	* Perform an I/O request on the tracer.
1752	*
1753	* @returns VBox status.
1754	* @param uCmd The tracer command.
1755	* @param uArg The argument.
1756	* @param piRetVal Where to store the tracer return value.
1757	*/
1758	SUPR3DECL(int) SUPR3TracerIoCtl(uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal);
1759
1760	/**
1761	* Registers the user module with the tracer.
1762	*
1763	* @returns VBox status code.
1764	* @param hModNative Native module handle. Pass ~(uintptr_t)0 if not
1765	* at hand.
1766	* @param pszModule The module name.
1767	* @param pVtgHdr The VTG header.
1768	* @param uVtgHdrAddr The address to which the VTG header is loaded
1769	* in the relevant execution context.
1770	* @param fFlags See SUP_TRACER_UMOD_FLAGS_XXX
1771	*/
1772	SUPR3DECL(int) SUPR3TracerRegisterModule(uintptr_t hModNative, const char pszModule, struct VTGOBJHDR pVtgHdr,
1773	RTUINTPTR uVtgHdrAddr, uint32_t fFlags);
1774
1775	/**
1776	* Deregisters the user module.
1777	*
1778	* @returns VBox status code.
1779	* @param pVtgHdr The VTG header.
1780	*/
1781	SUPR3DECL(int) SUPR3TracerDeregisterModule(struct VTGOBJHDR *pVtgHdr);
1782
1783	/**
1784	* Fire the probe.
1785	*
1786	* @param pVtgProbeLoc The probe location record.
1787	* @param uArg0 Raw probe argument 0.
1788	* @param uArg1 Raw probe argument 1.
1789	* @param uArg2 Raw probe argument 2.
1790	* @param uArg3 Raw probe argument 3.
1791	* @param uArg4 Raw probe argument 4.
1792	*/
1793	SUPDECL(void) SUPTracerFireProbe(struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
1794	uintptr_t uArg3, uintptr_t uArg4);
1795
1796	/**
1797	* Attempts to read the value of an MSR.
1798	*
1799	* @returns VBox status code.
1800	* @param uMsr The MSR to read.
1801	* @param idCpu The CPU to read it on, NIL_RTCPUID if it doesn't
1802	* matter which CPU.
1803	* @param puValue Where to return the value.
1804	* @param pfGp Where to store the \#GP indicator for the read
1805	* operation.
1806	*/
1807	SUPR3DECL(int) SUPR3MsrProberRead(uint32_t uMsr, RTCPUID idCpu, uint64_t puValue, bool pfGp);
1808
1809	/**
1810	* Attempts to write to an MSR.
1811	*
1812	* @returns VBox status code.
1813	* @param uMsr The MSR to write to.
1814	* @param idCpu The CPU to wrtie it on, NIL_RTCPUID if it
1815	* doesn't matter which CPU.
1816	* @param uValue The value to write.
1817	* @param pfGp Where to store the \#GP indicator for the write
1818	* operation.
1819	*/
1820	SUPR3DECL(int) SUPR3MsrProberWrite(uint32_t uMsr, RTCPUID idCpu, uint64_t uValue, bool *pfGp);
1821
1822	/**
1823	* Attempts to modify the value of an MSR.
1824	*
1825	* @returns VBox status code.
1826	* @param uMsr The MSR to modify.
1827	* @param idCpu The CPU to modify it on, NIL_RTCPUID if it
1828	* doesn't matter which CPU.
1829	* @param fAndMask The bits to keep in the current MSR value.
1830	* @param fOrMask The bits to set before writing.
1831	* @param pResult The result buffer.
1832	*/
1833	SUPR3DECL(int) SUPR3MsrProberModify(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask,
1834	PSUPMSRPROBERMODIFYRESULT pResult);
1835
1836	/**
1837	* Attempts to modify the value of an MSR, extended version.
1838	*
1839	* @returns VBox status code.
1840	* @param uMsr The MSR to modify.
1841	* @param idCpu The CPU to modify it on, NIL_RTCPUID if it
1842	* doesn't matter which CPU.
1843	* @param fAndMask The bits to keep in the current MSR value.
1844	* @param fOrMask The bits to set before writing.
1845	* @param fFaster If set to @c true some cache/tlb invalidation is
1846	* skipped, otherwise behave like
1847	* SUPR3MsrProberModify.
1848	* @param pResult The result buffer.
1849	*/
1850	SUPR3DECL(int) SUPR3MsrProberModifyEx(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask, bool fFaster,
1851	PSUPMSRPROBERMODIFYRESULT pResult);
1852
1853	/**
1854	* Resume built-in keyboard on MacBook Air and Pro hosts.
1855	*
1856	* @returns VBox status code.
1857	*/
1858	SUPR3DECL(int) SUPR3ResumeSuspendedKeyboards(void);
1859
1860	/**
1861	* Measure the TSC-delta for the specified CPU.
1862	*
1863	* @returns VBox status code.
1864	* @param idCpu The CPU to measure the TSC-delta for.
1865	* @param fAsync Whether the measurement is asynchronous, returns
1866	* immediately after signalling a measurement
1867	* request.
1868	* @param fForce Whether to perform a measurement even if the
1869	* specified CPU has a (possibly) valid TSC delta.
1870	* @param cRetries Number of times to retry failed delta
1871	* measurements.
1872	* @param cMsWaitRetry Number of milliseconds to wait between retries.
1873	*/
1874	SUPR3DECL(int) SUPR3TscDeltaMeasure(RTCPUID idCpu, bool fAsync, bool fForce, uint8_t cRetries, uint8_t cMsWaitRetry);
1875
1876	/**
1877	* Reads the delta-adjust TSC value.
1878	*
1879	* @returns VBox status code.
1880	* @param puTsc Where to store the read TSC value.
1881	* @param pidApic Where to store the APIC ID of the CPU where the TSC
1882	* was read (optional, can be NULL).
1883	*/
1884	SUPR3DECL(int) SUPR3ReadTsc(uint64_t puTsc, uint16_t pidApic);
1885
1886	/**
1887	* Modifies the GIP flags.
1888	*
1889	* @returns VBox status code.
1890	* @param fOrMask The OR mask of the GIP flags, see SUPGIP_FLAGS_XXX.
1891	* @param fAndMask The AND mask of the GIP flags, see SUPGIP_FLAGS_XXX.
1892	*/
1893	SUPR3DECL(int) SUPR3GipSetFlags(uint32_t fOrMask, uint32_t fAndMask);
1894
1895	/**
1896	* Return processor microcode revision, if applicable.
1897	*
1898	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1899	* @param puMicrocodeRev Pointer to microcode revision dword (out).
1900	*/
1901	SUPR3DECL(int) SUPR3QueryMicrocodeRev(uint32_t *puMicrocodeRev);
1902
1903	/**
1904	* Gets hardware-virtualization MSRs of the CPU, if available.
1905	*
1906	* @returns VINF_SUCCESS if available, error code indicating why if not.
1907	* @param pHwvirtMsrs Where to store the hardware-virtualization MSRs.
1908	* @param fForceRequery Whether to force complete re-querying of MSRs (rather
1909	* than fetching cached values when available).
1910	*/
1911	SUPR3DECL(int) SUPR3GetHwvirtMsrs(PSUPHWVIRTMSRS pHwvirtMsrs, bool fForceRequery);
1912
1913	/** @} */
1914	#endif /* IN_RING3 */
1915
1916
1917	/** @name User mode module flags (SUPR3TracerRegisterModule & SUP_IOCTL_TRACER_UMOD_REG).
1918	* @{ */
1919	/** Executable image. */
1920	#define SUP_TRACER_UMOD_FLAGS_EXE UINT32_C(1)
1921	/** Shared library (DLL, DYLIB, SO, etc). */
1922	#define SUP_TRACER_UMOD_FLAGS_SHARED UINT32_C(2)
1923	/** Image type mask. */
1924	#define SUP_TRACER_UMOD_FLAGS_TYPE_MASK UINT32_C(3)
1925	/** @} */
1926
1927
1928	#ifdef IN_RING0
1929	/** @defgroup grp_sup_r0 SUP Host Context Ring-0 API
1930	* @{
1931	*/
1932
1933	/**
1934	* Security objectype.
1935	*/
1936	typedef enum SUPDRVOBJTYPE
1937	{
1938	/** The usual invalid object. */
1939	SUPDRVOBJTYPE_INVALID = 0,
1940	/** A Virtual Machine instance. */
1941	SUPDRVOBJTYPE_VM,
1942	/** Internal network. */
1943	SUPDRVOBJTYPE_INTERNAL_NETWORK,
1944	/** Internal network interface. */
1945	SUPDRVOBJTYPE_INTERNAL_NETWORK_INTERFACE,
1946	/** Single release event semaphore. */
1947	SUPDRVOBJTYPE_SEM_EVENT,
1948	/** Multiple release event semaphore. */
1949	SUPDRVOBJTYPE_SEM_EVENT_MULTI,
1950	/** Raw PCI device. */
1951	SUPDRVOBJTYPE_RAW_PCI_DEVICE,
1952	/** The first invalid object type in this end. */
1953	SUPDRVOBJTYPE_END,
1954	/** The usual 32-bit type size hack. */
1955	SUPDRVOBJTYPE_32_BIT_HACK = 0x7ffffff
1956	} SUPDRVOBJTYPE;
1957
1958	/**
1959	* Object destructor callback.
1960	* This is called for reference counted objectes when the count reaches 0.
1961	*
1962	* @param pvObj The object pointer.
1963	* @param pvUser1 The first user argument.
1964	* @param pvUser2 The second user argument.
1965	*/
1966	typedef DECLCALLBACK(void) FNSUPDRVDESTRUCTOR(void pvObj, void pvUser1, void *pvUser2);
1967	/** Pointer to a FNSUPDRVDESTRUCTOR(). */
1968	typedef FNSUPDRVDESTRUCTOR *PFNSUPDRVDESTRUCTOR;
1969
1970	SUPR0DECL(void ) SUPR0ObjRegister(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void pvUser1, void *pvUser2);
1971	SUPR0DECL(int) SUPR0ObjAddRef(void *pvObj, PSUPDRVSESSION pSession);
1972	SUPR0DECL(int) SUPR0ObjAddRefEx(void *pvObj, PSUPDRVSESSION pSession, bool fNoBlocking);
1973	SUPR0DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession);
1974	SUPR0DECL(int) SUPR0ObjVerifyAccess(void pvObj, PSUPDRVSESSION pSession, const char pszObjName);
1975
1976	SUPR0DECL(PVM) SUPR0GetSessionVM(PSUPDRVSESSION pSession);
1977	SUPR0DECL(PGVM) SUPR0GetSessionGVM(PSUPDRVSESSION pSession);
1978	SUPR0DECL(int) SUPR0SetSessionVM(PSUPDRVSESSION pSession, PGVM pGVM, PVM pVM);
1979
1980	SUPR0DECL(int) SUPR0LockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages);
1981	SUPR0DECL(int) SUPR0UnlockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3);
1982	SUPR0DECL(int) SUPR0ContAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS pHCPhys);
1983	SUPR0DECL(int) SUPR0ContFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
1984	SUPR0DECL(int) SUPR0LowAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS paPages);
1985	SUPR0DECL(int) SUPR0LowFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
1986	SUPR0DECL(int) SUPR0MemAlloc(PSUPDRVSESSION pSession, uint32_t cb, PRTR0PTR ppvR0, PRTR3PTR ppvR3);
1987	SUPR0DECL(int) SUPR0MemGetPhys(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, PSUPPAGE paPages);
1988	SUPR0DECL(int) SUPR0MemFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
1989	SUPR0DECL(int) SUPR0PageAllocEx(PSUPDRVSESSION pSession, uint32_t cPages, uint32_t fFlags, PRTR3PTR ppvR3, PRTR0PTR ppvR0, PRTHCPHYS paPages);
1990	SUPR0DECL(int) SUPR0PageMapKernel(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t offSub, uint32_t cbSub, uint32_t fFlags, PRTR0PTR ppvR0);
1991	SUPR0DECL(int) SUPR0PageProtect(PSUPDRVSESSION pSession, RTR3PTR pvR3, RTR0PTR pvR0, uint32_t offSub, uint32_t cbSub, uint32_t fProt);
1992	SUPR0DECL(int) SUPR0PageFree(PSUPDRVSESSION pSession, RTR3PTR pvR3);
1993	SUPR0DECL(int) SUPR0GipMap(PSUPDRVSESSION pSession, PRTR3PTR ppGipR3, PRTHCPHYS pHCPhysGip);
1994	SUPR0DECL(int) SUPR0LdrLock(PSUPDRVSESSION pSession);
1995	SUPR0DECL(int) SUPR0LdrUnlock(PSUPDRVSESSION pSession);
1996	SUPR0DECL(bool) SUPR0LdrIsLockOwnerByMod(void *hMod, bool fWantToHear);
1997	SUPR0DECL(int) SUPR0LdrModByName(PSUPDRVSESSION pSession, const char pszName, void *phMod);
1998	SUPR0DECL(int) SUPR0LdrModRetain(PSUPDRVSESSION pSession, void *hMod);
1999	SUPR0DECL(int) SUPR0LdrModRelease(PSUPDRVSESSION pSession, void *hMod);
2000	SUPR0DECL(int) SUPR0GetVTSupport(uint32_t *pfCaps);
2001	SUPR0DECL(int) SUPR0GetHwvirtMsrs(PSUPHWVIRTMSRS pMsrs, uint32_t fCaps, bool fForce);
2002	SUPR0DECL(int) SUPR0GetSvmUsability(bool fInitSvm);
2003	SUPR0DECL(int) SUPR0GetVmxUsability(bool *pfIsSmxModeAmbiguous);
2004	SUPR0DECL(int) SUPR0GetCurrentGdtRw(RTHCUINTPTR *pGdtRw);
2005	SUPR0DECL(int) SUPR0QueryVTCaps(PSUPDRVSESSION pSession, uint32_t *pfCaps);
2006	SUPR0DECL(int) SUPR0GipUnmap(PSUPDRVSESSION pSession);
2007	SUPR0DECL(int) SUPR0QueryUcodeRev(PSUPDRVSESSION pSession, uint32_t *puMicrocodeRev);
2008	SUPR0DECL(SUPPAGINGMODE) SUPR0GetPagingMode(void);
2009	SUPR0DECL(RTCCUINTREG) SUPR0ChangeCR4(RTCCUINTREG fOrMask, RTCCUINTREG fAndMask);
2010	SUPR0DECL(int) SUPR0EnableVTx(bool fEnable);
2011	SUPR0DECL(bool) SUPR0SuspendVTxOnCpu(void);
2012	SUPR0DECL(void) SUPR0ResumeVTxOnCpu(bool fSuspended);
2013	#define SUP_TSCDELTA_MEASURE_F_FORCE RT_BIT_32(0)
2014	#define SUP_TSCDELTA_MEASURE_F_ASYNC RT_BIT_32(1)
2015	#define SUP_TSCDELTA_MEASURE_F_VALID_MASK UINT32_C(0x00000003)
2016	SUPR0DECL(int) SUPR0TscDeltaMeasureBySetIndex(PSUPDRVSESSION pSession, uint32_t iCpuSet, uint32_t fFlags,
2017	RTMSINTERVAL cMsWaitRetry, RTMSINTERVAL cMsWaitThread, uint32_t cTries);
2018
2019	SUPR0DECL(void) SUPR0BadContext(PSUPDRVSESSION pSession, const char pszFile, uint32_t uLine, const char pszExpr);
2020
2021	/** Context structure returned by SUPR0IoCtlSetup for use with
2022	* SUPR0IoCtlPerform and cleaned up by SUPR0IoCtlCleanup. */
2023	typedef struct SUPR0IOCTLCTX *PSUPR0IOCTLCTX;
2024
2025	/**
2026	* Sets up a I/O control context for the given handle.
2027	*
2028	* @returns VBox status code.
2029	* @param pSession The support driver session.
2030	* @param hHandle The handle.
2031	* @param fFlags Flag, MBZ.
2032	* @param ppCtx Where the context is returned.
2033	*/
2034	SUPR0DECL(int) SUPR0IoCtlSetupForHandle(PSUPDRVSESSION pSession, intptr_t hHandle, uint32_t fFlags, PSUPR0IOCTLCTX *ppCtx);
2035
2036	/**
2037	* Cleans up the I/O control context when done.
2038	*
2039	* This won't close the handle passed to SUPR0IoCtlSetupForHandle.
2040	*
2041	* @returns VBox status code.
2042	* @param pCtx The I/O control context to cleanup.
2043	*/
2044	SUPR0DECL(int) SUPR0IoCtlCleanup(PSUPR0IOCTLCTX pCtx);
2045
2046	/**
2047	* Performs an I/O control operation.
2048	*
2049	* @returns VBox status code.
2050	* @param pCtx The I/O control context returned by
2051	* SUPR0IoCtlSetupForHandle.
2052	* @param uFunction The I/O control function to perform.
2053	* @param pvInput Pointer to input buffer (ring-0).
2054	* @param pvInputUser Ring-3 pointer corresponding to @a pvInput.
2055	* @param cbInput The amount of input. If zero, both input pointers
2056	* are expected to be NULL.
2057	* @param pvOutput Pointer to output buffer (ring-0).
2058	* @param pvOutputUser Ring-3 pointer corresponding to @a pvInput.
2059	* @param cbOutput The amount of input. If zero, both input pointers
2060	* are expected to be NULL.
2061	* @param piNativeRc Where to return the native return code. When
2062	* specified the VBox status code will typically be
2063	* VINF_SUCCESS and the caller have to consult this for
2064	* the actual result of the operation. (This saves
2065	* pointless status code conversion.) Optional.
2066	*
2067	* @note On unix systems where there is only one set of buffers possible,
2068	* pass the same pointers as input and output.
2069	*/
2070	SUPR0DECL(int) SUPR0IoCtlPerform(PSUPR0IOCTLCTX pCtx, uintptr_t uFunction,
2071	void *pvInput, RTR3PTR pvInputUser, size_t cbInput,
2072	void *pvOutput, RTR3PTR pvOutputUser, size_t cbOutput,
2073	int32_t *piNativeRc);
2074
2075	/**
2076	* Writes to the debugger and/or kernel log.
2077	*
2078	* The length of the formatted message is somewhat limited, so keep things short
2079	* and to the point.
2080	*
2081	* @returns Number of bytes written, mabye.
2082	* @param pszFormat IPRT format string.
2083	* @param ... Arguments referenced by the format string.
2084	*/
2085	SUPR0DECL(int) SUPR0Printf(const char *pszFormat, ...) RT_IPRT_FORMAT_ATTR(1, 2);
2086
2087	/**
2088	* Returns configuration flags of the host kernel.
2089	*
2090	* @returns Combination of SUPKERNELFEATURES_XXX flags.
2091	*/
2092	SUPR0DECL(uint32_t) SUPR0GetKernelFeatures(void);
2093
2094	/** @copydoc RTLogGetDefaultInstanceEx
2095	* @remarks To allow overriding RTLogGetDefaultInstanceEx locally. */
2096	SUPR0DECL(struct RTLOGGER *) SUPR0GetDefaultLogInstanceEx(uint32_t fFlagsAndGroup);
2097	/** @copydoc RTLogRelGetDefaultInstanceEx
2098	* @remarks To allow overriding RTLogRelGetDefaultInstanceEx locally. */
2099	SUPR0DECL(struct RTLOGGER *) SUPR0GetDefaultLogRelInstanceEx(uint32_t fFlagsAndGroup);
2100
2101
2102	/** @name Absolute symbols
2103	* Take the address of these, don't try call them.
2104	* @{ */
2105	SUPR0DECL(void) SUPR0AbsIs64bit(void);
2106	SUPR0DECL(void) SUPR0Abs64bitKernelCS(void);
2107	SUPR0DECL(void) SUPR0Abs64bitKernelSS(void);
2108	SUPR0DECL(void) SUPR0Abs64bitKernelDS(void);
2109	SUPR0DECL(void) SUPR0AbsKernelCS(void);
2110	SUPR0DECL(void) SUPR0AbsKernelSS(void);
2111	SUPR0DECL(void) SUPR0AbsKernelDS(void);
2112	SUPR0DECL(void) SUPR0AbsKernelES(void);
2113	SUPR0DECL(void) SUPR0AbsKernelFS(void);
2114	SUPR0DECL(void) SUPR0AbsKernelGS(void);
2115	/** @} */
2116
2117	/**
2118	* Support driver component factory.
2119	*
2120	* Component factories are registered by drivers that provides services
2121	* such as the host network interface filtering and access to the host
2122	* TCP/IP stack.
2123	*
2124	* @remark Module dependencies and making sure that a component doesn't
2125	* get unloaded while in use, is the sole responsibility of the
2126	* driver/kext/whatever implementing the component.
2127	*/
2128	typedef struct SUPDRVFACTORY
2129	{
2130	/** The (unique) name of the component factory. */
2131	char szName[56];
2132	/**
2133	* Queries a factory interface.
2134	*
2135	* The factory interface is specific to each component and will be be
2136	* found in the header(s) for the component alongside its UUID.
2137	*
2138	* @returns Pointer to the factory interfaces on success, NULL on failure.
2139	*
2140	* @param pSupDrvFactory Pointer to this structure.
2141	* @param pSession The SUPDRV session making the query.
2142	* @param pszInterfaceUuid The UUID of the factory interface.
2143	*/
2144	DECLR0CALLBACKMEMBER(void , pfnQueryFactoryInterface,(struct SUPDRVFACTORY const pSupDrvFactory, PSUPDRVSESSION pSession, const char *pszInterfaceUuid));
2145	} SUPDRVFACTORY;
2146	/** Pointer to a support driver factory. */
2147	typedef SUPDRVFACTORY *PSUPDRVFACTORY;
2148	/** Pointer to a const support driver factory. */
2149	typedef SUPDRVFACTORY const *PCSUPDRVFACTORY;
2150
2151	SUPR0DECL(int) SUPR0ComponentRegisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
2152	SUPR0DECL(int) SUPR0ComponentDeregisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
2153	SUPR0DECL(int) SUPR0ComponentQueryFactory(PSUPDRVSESSION pSession, const char pszName, const char pszInterfaceUuid, void **ppvFactoryIf);
2154
2155
2156	/** @name Tracing
2157	* @{ */
2158
2159	/**
2160	* Tracer data associated with a provider.
2161	*/
2162	typedef union SUPDRVTRACERDATA
2163	{
2164	/** Generic */
2165	uint64_t au64[2];
2166
2167	/** DTrace data. */
2168	struct
2169	{
2170	/** Provider ID. */
2171	uintptr_t idProvider;
2172	/** The number of trace points provided. */
2173	uint32_t volatile cProvidedProbes;
2174	/** Whether we've invalidated this bugger. */
2175	bool fZombie;
2176	} DTrace;
2177	} SUPDRVTRACERDATA;
2178	/** Pointer to the tracer data associated with a provider. */
2179	typedef SUPDRVTRACERDATA *PSUPDRVTRACERDATA;
2180
2181	/**
2182	* Probe location info for ring-0.
2183	*
2184	* Since we cannot trust user tracepoint modules, we need to duplicate the probe
2185	* ID and enabled flag in ring-0.
2186	*/
2187	typedef struct SUPDRVPROBELOC
2188	{
2189	/** The probe ID. */
2190	uint32_t idProbe;
2191	/** Whether it's enabled or not. */
2192	bool fEnabled;
2193	} SUPDRVPROBELOC;
2194	/** Pointer to a ring-0 probe location record. */
2195	typedef SUPDRVPROBELOC *PSUPDRVPROBELOC;
2196
2197	/**
2198	* Probe info for ring-0.
2199	*
2200	* Since we cannot trust user tracepoint modules, we need to duplicate the
2201	* probe enable count.
2202	*/
2203	typedef struct SUPDRVPROBEINFO
2204	{
2205	/** The number of times this probe has been enabled. */
2206	uint32_t volatile cEnabled;
2207	} SUPDRVPROBEINFO;
2208	/** Pointer to a ring-0 probe info record. */
2209	typedef SUPDRVPROBEINFO *PSUPDRVPROBEINFO;
2210
2211	/**
2212	* Support driver tracepoint provider core.
2213	*/
2214	typedef struct SUPDRVVDTPROVIDERCORE
2215	{
2216	/** The tracer data member. */
2217	SUPDRVTRACERDATA TracerData;
2218	/** Pointer to the provider name (a copy that's always available). */
2219	const char *pszName;
2220	/** Pointer to the module name (a copy that's always available). */
2221	const char *pszModName;
2222
2223	/** The provider descriptor. */
2224	struct VTGDESCPROVIDER *pDesc;
2225	/** The VTG header. */
2226	struct VTGOBJHDR *pHdr;
2227
2228	/** The size of the entries in the pvProbeLocsEn table. */
2229	uint8_t cbProbeLocsEn;
2230	/** The actual module bit count (corresponds to cbProbeLocsEn). */
2231	uint8_t cBits;
2232	/** Set if this is a Umod, otherwise clear. */
2233	bool fUmod;
2234	/** Explicit alignment padding (paranoia). */
2235	uint8_t abAlignment[ARCH_BITS == 32 ? 1 : 5];
2236
2237	/** The probe locations used for descriptive purposes. */
2238	struct VTGPROBELOC const *paProbeLocsRO;
2239	/** Pointer to the probe location array where the enable flag needs
2240	* flipping. For kernel providers, this will always be SUPDRVPROBELOC,
2241	* while user providers can either be 32-bit or 64-bit. Use
2242	* cbProbeLocsEn to calculate the address of an entry. */
2243	void *pvProbeLocsEn;
2244	/** Pointer to the probe array containing the enabled counts. */
2245	uint32_t *pacProbeEnabled;
2246
2247	/** The ring-0 probe location info for user tracepoint modules.
2248	* This is NULL if fUmod is false. */
2249	PSUPDRVPROBELOC paR0ProbeLocs;
2250	/** The ring-0 probe info for user tracepoint modules.
2251	* This is NULL if fUmod is false. */
2252	PSUPDRVPROBEINFO paR0Probes;
2253
2254	} SUPDRVVDTPROVIDERCORE;
2255	/** Pointer to a tracepoint provider core structure. */
2256	typedef SUPDRVVDTPROVIDERCORE *PSUPDRVVDTPROVIDERCORE;
2257
2258	/** Pointer to a tracer registration record. */
2259	typedef struct SUPDRVTRACERREG const *PCSUPDRVTRACERREG;
2260	/**
2261	* Support driver tracer registration record.
2262	*/
2263	typedef struct SUPDRVTRACERREG
2264	{
2265	/** Magic value (SUPDRVTRACERREG_MAGIC). */
2266	uint32_t u32Magic;
2267	/** Version (SUPDRVTRACERREG_VERSION). */
2268	uint32_t u32Version;
2269
2270	/**
2271	* Fire off a kernel probe.
2272	*
2273	* @param pVtgProbeLoc The probe location record.
2274	* @param uArg0 The first raw probe argument.
2275	* @param uArg1 The second raw probe argument.
2276	* @param uArg2 The third raw probe argument.
2277	* @param uArg3 The fourth raw probe argument.
2278	* @param uArg4 The fifth raw probe argument.
2279	*
2280	* @remarks SUPR0TracerFireProbe will do a tail jump thru this member, so
2281	* no extra stack frames will be added.
2282	* @remarks This does not take a 'this' pointer argument because it doesn't map
2283	* well onto VTG or DTrace.
2284	*
2285	*/
2286	DECLR0CALLBACKMEMBER(void, pfnProbeFireKernel, (struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
2287	uintptr_t uArg3, uintptr_t uArg4));
2288
2289	/**
2290	* Fire off a user-mode probe.
2291	*
2292	* @param pThis Pointer to the registration record.
2293	*
2294	* @param pVtgProbeLoc The probe location record.
2295	* @param pSession The user session.
2296	* @param pCtx The usermode context info.
2297	* @param pVtgHdr The VTG header (read-only).
2298	* @param pProbeLocRO The read-only probe location record .
2299	*/
2300	DECLR0CALLBACKMEMBER(void, pfnProbeFireUser, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, PCSUPDRVTRACERUSRCTX pCtx,
2301	struct VTGOBJHDR const pVtgHdr, struct VTGPROBELOC const pProbeLocRO));
2302
2303	/**
2304	* Opens up the tracer.
2305	*
2306	* @returns VBox status code.
2307	* @param pThis Pointer to the registration record.
2308	* @param pSession The session doing the opening.
2309	* @param uCookie A cookie (magic) unique to the tracer, so it can
2310	* fend off incompatible clients.
2311	* @param uArg Tracer specific argument.
2312	* @param puSessionData Pointer to the session data variable. This must be
2313	* set to a non-zero value on success.
2314	*/
2315	DECLR0CALLBACKMEMBER(int, pfnTracerOpen, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uint32_t uCookie, uintptr_t uArg,
2316	uintptr_t *puSessionData));
2317
2318	/**
2319	* I/O control style tracer communication method.
2320	*
2321	*
2322	* @returns VBox status code.
2323	* @param pThis Pointer to the registration record.
2324	* @param pSession The session.
2325	* @param uSessionData The session data value.
2326	* @param uCmd The tracer specific command.
2327	* @param uArg The tracer command specific argument.
2328	* @param piRetVal The tracer specific return value.
2329	*/
2330	DECLR0CALLBACKMEMBER(int, pfnTracerIoCtl, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uintptr_t uSessionData,
2331	uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal));
2332
2333	/**
2334	* Cleans up data the tracer has associated with a session.
2335	*
2336	* @param pThis Pointer to the registration record.
2337	* @param pSession The session handle.
2338	* @param uSessionData The data assoicated with the session.
2339	*/
2340	DECLR0CALLBACKMEMBER(void, pfnTracerClose, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uintptr_t uSessionData));
2341
2342	/**
2343	* Registers a provider.
2344	*
2345	* @returns VBox status code.
2346	* @param pThis Pointer to the registration record.
2347	* @param pCore The provider core data.
2348	*
2349	* @todo Kernel vs. Userland providers.
2350	*/
2351	DECLR0CALLBACKMEMBER(int, pfnProviderRegister, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2352
2353	/**
2354	* Attempts to deregisters a provider.
2355	*
2356	* @returns VINF_SUCCESS or VERR_TRY_AGAIN. If the latter, the provider
2357	* should be made as harmless as possible before returning as the
2358	* VTG object and associated code will be unloaded upon return.
2359	*
2360	* @param pThis Pointer to the registration record.
2361	* @param pCore The provider core data.
2362	*/
2363	DECLR0CALLBACKMEMBER(int, pfnProviderDeregister, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2364
2365	/**
2366	* Make another attempt at unregister a busy provider.
2367	*
2368	* @returns VINF_SUCCESS or VERR_TRY_AGAIN.
2369	* @param pThis Pointer to the registration record.
2370	* @param pCore The provider core data.
2371	*/
2372	DECLR0CALLBACKMEMBER(int, pfnProviderDeregisterZombie, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2373
2374	/** End marker (SUPDRVTRACERREG_MAGIC). */
2375	uintptr_t uEndMagic;
2376	} SUPDRVTRACERREG;
2377
2378	/** Tracer magic (Kenny Garrett). */
2379	#define SUPDRVTRACERREG_MAGIC UINT32_C(0x19601009)
2380	/** Tracer registration structure version. */
2381	#define SUPDRVTRACERREG_VERSION RT_MAKE_U32(0, 1)
2382
2383	/** Pointer to a trace helper structure. */
2384	typedef struct SUPDRVTRACERHLP const *PCSUPDRVTRACERHLP;
2385	/**
2386	* Helper structure.
2387	*/
2388	typedef struct SUPDRVTRACERHLP
2389	{
2390	/** The structure version (SUPDRVTRACERHLP_VERSION). */
2391	uintptr_t uVersion;
2392
2393	/** @todo ... */
2394
2395	/** End marker (SUPDRVTRACERHLP_VERSION) */
2396	uintptr_t uEndVersion;
2397	} SUPDRVTRACERHLP;
2398	/** Tracer helper structure version. */
2399	#define SUPDRVTRACERHLP_VERSION RT_MAKE_U32(0, 1)
2400
2401	SUPR0DECL(int) SUPR0TracerRegisterImpl(void hMod, PSUPDRVSESSION pSession, PCSUPDRVTRACERREG pReg, PCSUPDRVTRACERHLP ppHlp);
2402	SUPR0DECL(int) SUPR0TracerDeregisterImpl(void *hMod, PSUPDRVSESSION pSession);
2403	SUPR0DECL(int) SUPR0TracerRegisterDrv(PSUPDRVSESSION pSession, struct VTGOBJHDR pVtgHdr, const char pszName);
2404	SUPR0DECL(void) SUPR0TracerDeregisterDrv(PSUPDRVSESSION pSession);
2405	SUPR0DECL(int) SUPR0TracerRegisterModule(void hMod, struct VTGOBJHDR pVtgHdr);
2406	SUPR0DECL(void) SUPR0TracerFireProbe(struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
2407	uintptr_t uArg3, uintptr_t uArg4);
2408	SUPR0DECL(void) SUPR0TracerUmodProbeFire(PSUPDRVSESSION pSession, PSUPDRVTRACERUSRCTX pCtx);
2409	/** @} */
2410
2411
2412	/**
2413	* Service request callback function.
2414	*
2415	* @returns VBox status code.
2416	* @param pSession The caller's session.
2417	* @param uOperation The operation identifier.
2418	* @param u64Arg 64-bit integer argument.
2419	* @param pReqHdr The request header. Input / Output. Optional.
2420	*/
2421	typedef DECLCALLBACK(int) FNSUPR0SERVICEREQHANDLER(PSUPDRVSESSION pSession, uint32_t uOperation,
2422	uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr);
2423	/** Pointer to a FNR0SERVICEREQHANDLER(). */
2424	typedef R0PTRTYPE(FNSUPR0SERVICEREQHANDLER *) PFNSUPR0SERVICEREQHANDLER;
2425
2426
2427	/** @defgroup grp_sup_r0_idc The IDC Interface
2428	* @{
2429	*/
2430
2431	/** The current SUPDRV IDC version.
2432	* This follows the usual high word / low word rules, i.e. high word is the
2433	* major number and it signifies incompatible interface changes. */
2434	#define SUPDRV_IDC_VERSION UINT32_C(0x00010000)
2435
2436	/**
2437	* Inter-Driver Communication Handle.
2438	*/
2439	typedef union SUPDRVIDCHANDLE
2440	{
2441	/** Padding for opaque usage.
2442	* Must be greater or equal in size than the private struct. */
2443	void *apvPadding[4];
2444	#ifdef SUPDRVIDCHANDLEPRIVATE_DECLARED
2445	/** The private view. */
2446	struct SUPDRVIDCHANDLEPRIVATE s;
2447	#endif
2448	} SUPDRVIDCHANDLE;
2449	/** Pointer to a handle. */
2450	typedef SUPDRVIDCHANDLE *PSUPDRVIDCHANDLE;
2451
2452	SUPR0DECL(int) SUPR0IdcOpen(PSUPDRVIDCHANDLE pHandle, uint32_t uReqVersion, uint32_t uMinVersion,
2453	uint32_t puSessionVersion, uint32_t puDriverVersion, uint32_t *puDriverRevision);
2454	SUPR0DECL(int) SUPR0IdcCall(PSUPDRVIDCHANDLE pHandle, uint32_t iReq, void *pvReq, uint32_t cbReq);
2455	SUPR0DECL(int) SUPR0IdcClose(PSUPDRVIDCHANDLE pHandle);
2456	SUPR0DECL(PSUPDRVSESSION) SUPR0IdcGetSession(PSUPDRVIDCHANDLE pHandle);
2457	SUPR0DECL(int) SUPR0IdcComponentRegisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory);
2458	SUPR0DECL(int) SUPR0IdcComponentDeregisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory);
2459
2460	/** @} */
2461
2462	/** @name Ring-0 module entry points.
2463	*
2464	* These can be exported by ring-0 modules SUP are told to load.
2465	*
2466	* @{ */
2467	DECLEXPORT(int) ModuleInit(void *hMod);
2468	DECLEXPORT(void) ModuleTerm(void *hMod);
2469	/** @} */
2470
2471
2472	/** @} */
2473	#endif
2474
2475
2476	/** @name Trust Anchors and Certificates
2477	* @{ */
2478
2479	/**
2480	* Trust anchor table entry (in generated Certificates.cpp).
2481	*/
2482	typedef struct SUPTAENTRY
2483	{
2484	/** Pointer to the raw bytes. */
2485	const unsigned char *pch;
2486	/** Number of bytes. */
2487	unsigned cb;
2488	} SUPTAENTRY;
2489	/** Pointer to a trust anchor table entry. */
2490	typedef SUPTAENTRY const *PCSUPTAENTRY;
2491
2492	/** Macro for simplifying generating the trust anchor tables. */
2493	#define SUPTAENTRY_GEN(a_abTA) { &a_abTA[0], sizeof(a_abTA) }
2494
2495	/** All certificates we know. */
2496	extern SUPTAENTRY const g_aSUPAllTAs[];
2497	/** Number of entries in g_aSUPAllTAs. */
2498	extern unsigned const g_cSUPAllTAs;
2499
2500	/** Software publisher certificate roots (Authenticode). */
2501	extern SUPTAENTRY const g_aSUPSpcRootTAs[];
2502	/** Number of entries in g_aSUPSpcRootTAs. */
2503	extern unsigned const g_cSUPSpcRootTAs;
2504
2505	/** Kernel root certificates used by Windows. */
2506	extern SUPTAENTRY const g_aSUPNtKernelRootTAs[];
2507	/** Number of entries in g_aSUPNtKernelRootTAs. */
2508	extern unsigned const g_cSUPNtKernelRootTAs;
2509
2510	/** Timestamp root certificates trusted by Windows. */
2511	extern SUPTAENTRY const g_aSUPTimestampTAs[];
2512	/** Number of entries in g_aSUPTimestampTAs. */
2513	extern unsigned const g_cSUPTimestampTAs;
2514
2515	/** Root certificates trusted by Apple code signing. */
2516	extern SUPTAENTRY const g_aSUPAppleRootTAs[];
2517	/** Number of entries in g_cSUPAppleRootTAs. */
2518	extern unsigned const g_cSUPAppleRootTAs;
2519
2520	/** TAs we trust (the build certificate, Oracle VirtualBox). */
2521	extern SUPTAENTRY const g_aSUPTrustedTAs[];
2522	/** Number of entries in g_aSUPTrustedTAs. */
2523	extern unsigned const g_cSUPTrustedTAs;
2524
2525	/** Supplemental certificates, like cross signing certificates. */
2526	extern SUPTAENTRY const g_aSUPSupplementalTAs[];
2527	/** Number of entries in g_aSUPTrustedTAs. */
2528	extern unsigned const g_cSUPSupplementalTAs;
2529
2530	/** The build certificate. */
2531	extern const unsigned char g_abSUPBuildCert[];
2532	/** The size of the build certificate. */
2533	extern const unsigned g_cbSUPBuildCert;
2534
2535	/** @} */
2536
2537
2538	/** @} */
2539
2540	RT_C_DECLS_END
2541
2542	#endif /* !VBOX_INCLUDED_sup_h */
2543

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source: vbox/trunk/include/VBox/sup.h@ 81514

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