sup.h@ 97964

Last change on this file since 97964 was 97262, checked in by vboxsync, 2 years ago
VMM: Nested VMX: bugref:10092 Added fetching VM-exit secondary MSR from the support driver. Updated the virtual VMCS with latest VMCS fields (HLAT prefix size, HLAT ptr, secondary VM-exit controls and PCONFIG-exiting bitmap).
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 103.8 KB

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1	/** @file
2	* SUP - Support Library. (HDrv)
3	*/
4
5	/*
6	* Copyright (C) 2006-2022 Oracle and/or its affiliates.
7	*
8	* This file is part of VirtualBox base platform packages, as
9	* available from https://www.virtualbox.org.
10	*
11	* This program is free software; you can redistribute it and/or
12	* modify it under the terms of the GNU General Public License
13	* as published by the Free Software Foundation, in version 3 of the
14	* License.
15	*
16	* This program is distributed in the hope that it will be useful, but
17	* WITHOUT ANY WARRANTY; without even the implied warranty of
18	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19	* General Public License for more details.
20	*
21	* You should have received a copy of the GNU General Public License
22	* along with this program; if not, see <https://www.gnu.org/licenses>.
23	*
24	* The contents of this file may alternatively be used under the terms
25	* of the Common Development and Distribution License Version 1.0
26	* (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
27	* in the VirtualBox distribution, in which case the provisions of the
28	* CDDL are applicable instead of those of the GPL.
29	*
30	* You may elect to license modified versions of this file under the
31	* terms and conditions of either the GPL or the CDDL or both.
32	*
33	* SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
34	*/
35
36	#ifndef VBOX_INCLUDED_sup_h
37	#define VBOX_INCLUDED_sup_h
38	#ifndef RT_WITHOUT_PRAGMA_ONCE
39	# pragma once
40	#endif
41
42	#include <VBox/cdefs.h>
43	#include <VBox/types.h>
44	#include <iprt/assert.h>
45	#include <iprt/stdarg.h>
46	#include <iprt/cpuset.h>
47	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86)
48	# include <iprt/asm-amd64-x86.h>
49	#elif defined(RT_ARCH_ARM64) \|\| defined(RT_ARCH_ARM64)
50	# include <iprt/asm-arm.h>
51	#endif
52
53	RT_C_DECLS_BEGIN
54
55	struct VTGOBJHDR;
56	struct VTGPROBELOC;
57
58
59	/** @defgroup grp_sup The Support Library API
60	* @{
61	*/
62
63	/**
64	* Physical page descriptor.
65	*/
66	#pragma pack(4) /* space is more important. */
67	typedef struct SUPPAGE
68	{
69	/** Physical memory address. */
70	RTHCPHYS Phys;
71	/** Reserved entry for internal use by the caller. */
72	RTHCUINTPTR uReserved;
73	} SUPPAGE;
74	#pragma pack()
75	/** Pointer to a page descriptor. */
76	typedef SUPPAGE *PSUPPAGE;
77	/** Pointer to a const page descriptor. */
78	typedef const SUPPAGE *PCSUPPAGE;
79
80	/**
81	* The paging mode.
82	*
83	* @remarks Users are making assumptions about the order here!
84	*/
85	typedef enum SUPPAGINGMODE
86	{
87	/** The usual invalid entry.
88	* This is returned by SUPR3GetPagingMode() */
89	SUPPAGINGMODE_INVALID = 0,
90	/** Normal 32-bit paging, no global pages */
91	SUPPAGINGMODE_32_BIT,
92	/** Normal 32-bit paging with global pages. */
93	SUPPAGINGMODE_32_BIT_GLOBAL,
94	/** PAE mode, no global pages, no NX. */
95	SUPPAGINGMODE_PAE,
96	/** PAE mode with global pages. */
97	SUPPAGINGMODE_PAE_GLOBAL,
98	/** PAE mode with NX, no global pages. */
99	SUPPAGINGMODE_PAE_NX,
100	/** PAE mode with global pages and NX. */
101	SUPPAGINGMODE_PAE_GLOBAL_NX,
102	/** AMD64 mode, no global pages. */
103	SUPPAGINGMODE_AMD64,
104	/** AMD64 mode with global pages, no NX. */
105	SUPPAGINGMODE_AMD64_GLOBAL,
106	/** AMD64 mode with NX, no global pages. */
107	SUPPAGINGMODE_AMD64_NX,
108	/** AMD64 mode with global pages and NX. */
109	SUPPAGINGMODE_AMD64_GLOBAL_NX
110	} SUPPAGINGMODE;
111
112
113	/** @name Flags returned by SUPR0GetKernelFeatures().
114	* @{
115	*/
116	/** GDT is read-only. */
117	#define SUPKERNELFEATURES_GDT_READ_ONLY RT_BIT(0)
118	/** SMAP is possibly enabled. */
119	#define SUPKERNELFEATURES_SMAP RT_BIT(1)
120	/** GDT is read-only but the writable GDT can be fetched by SUPR0GetCurrentGdtRw(). */
121	#define SUPKERNELFEATURES_GDT_NEED_WRITABLE RT_BIT(2)
122	/** @} */
123
124	/**
125	* An VT-x control MSR.
126	* @sa VMXCTLSMSR.
127	*/
128	typedef union SUPVMXCTLSMSR
129	{
130	uint64_t u;
131	struct
132	{
133	/** Bits set here _must_ be set in the corresponding VM-execution controls. */
134	uint32_t allowed0;
135	/** Bits cleared here _must_ be cleared in the corresponding VM-execution controls. */
136	uint32_t allowed1;
137	} n;
138	} SUPVMXCTLSMSR;
139	AssertCompileSize(SUPVMXCTLSMSR, sizeof(uint64_t));
140
141	/**
142	* Hardware-virtualization MSRs.
143	*/
144	typedef struct SUPHWVIRTMSRS
145	{
146	union
147	{
148	/** @sa VMXMSRS */
149	struct
150	{
151	uint64_t u64FeatCtrl;
152	uint64_t u64Basic;
153	/** Pin-based VM-execution controls. */
154	SUPVMXCTLSMSR PinCtls;
155	/** Processor-based VM-execution controls. */
156	SUPVMXCTLSMSR ProcCtls;
157	/** Secondary processor-based VM-execution controls. */
158	SUPVMXCTLSMSR ProcCtls2;
159	/** VM-exit controls. */
160	SUPVMXCTLSMSR ExitCtls;
161	/** VM-entry controls. */
162	SUPVMXCTLSMSR EntryCtls;
163	/** True pin-based VM-execution controls. */
164	SUPVMXCTLSMSR TruePinCtls;
165	/** True processor-based VM-execution controls. */
166	SUPVMXCTLSMSR TrueProcCtls;
167	/** True VM-entry controls. */
168	SUPVMXCTLSMSR TrueEntryCtls;
169	/** True VM-exit controls. */
170	SUPVMXCTLSMSR TrueExitCtls;
171	uint64_t u64Misc;
172	uint64_t u64Cr0Fixed0;
173	uint64_t u64Cr0Fixed1;
174	uint64_t u64Cr4Fixed0;
175	uint64_t u64Cr4Fixed1;
176	uint64_t u64VmcsEnum;
177	uint64_t u64VmFunc;
178	uint64_t u64EptVpidCaps;
179	uint64_t u64ProcCtls3;
180	uint64_t u64ExitCtls2;
181	uint64_t au64Reserved[7];
182	} vmx;
183	struct
184	{
185	uint64_t u64MsrHwcr;
186	uint64_t u64MsrSmmAddr;
187	uint64_t u64MsrSmmMask;
188	uint64_t u64Padding[25];
189	} svm;
190	} u;
191	} SUPHWVIRTMSRS;
192	AssertCompileSize(SUPHWVIRTMSRS, 224);
193	/** Pointer to a hardware-virtualization MSRs struct. */
194	typedef SUPHWVIRTMSRS *PSUPHWVIRTMSRS;
195	/** Pointer to a hardware-virtualization MSRs struct. */
196	typedef const SUPHWVIRTMSRS *PCSUPHWVIRTMSRS;
197
198
199	/**
200	* Usermode probe context information.
201	*/
202	typedef struct SUPDRVTRACERUSRCTX
203	{
204	/** The probe ID from the VTG location record. */
205	uint32_t idProbe;
206	/** 32 if X86, 64 if AMD64. */
207	uint8_t cBits;
208	/** Reserved padding. */
209	uint8_t abReserved[3];
210	/** Data which format is dictated by the cBits member. */
211	union
212	{
213	/** X86 context info. */
214	struct
215	{
216	uint32_t uVtgProbeLoc; /*< Location record address. /
217	uint32_t aArgs[20]; /*< Raw arguments. /
218	uint32_t eip;
219	uint32_t eflags;
220	uint32_t eax;
221	uint32_t ecx;
222	uint32_t edx;
223	uint32_t ebx;
224	uint32_t esp;
225	uint32_t ebp;
226	uint32_t esi;
227	uint32_t edi;
228	uint16_t cs;
229	uint16_t ss;
230	uint16_t ds;
231	uint16_t es;
232	uint16_t fs;
233	uint16_t gs;
234	} X86;
235
236	/** AMD64 context info. */
237	struct
238	{
239	uint64_t uVtgProbeLoc; /*< Location record address. /
240	uint64_t aArgs[10]; /*< Raw arguments. /
241	uint64_t rip;
242	uint64_t rflags;
243	uint64_t rax;
244	uint64_t rcx;
245	uint64_t rdx;
246	uint64_t rbx;
247	uint64_t rsp;
248	uint64_t rbp;
249	uint64_t rsi;
250	uint64_t rdi;
251	uint64_t r8;
252	uint64_t r9;
253	uint64_t r10;
254	uint64_t r11;
255	uint64_t r12;
256	uint64_t r13;
257	uint64_t r14;
258	uint64_t r15;
259	} Amd64;
260	} u;
261	} SUPDRVTRACERUSRCTX;
262	/** Pointer to the usermode probe context information. */
263	typedef SUPDRVTRACERUSRCTX *PSUPDRVTRACERUSRCTX;
264	/** Pointer to the const usermode probe context information. */
265	typedef SUPDRVTRACERUSRCTX const *PCSUPDRVTRACERUSRCTX;
266
267	/**
268	* The result of a modification operation (SUPMSRPROBEROP_MODIFY or
269	* SUPMSRPROBEROP_MODIFY_FASTER).
270	*/
271	typedef struct SUPMSRPROBERMODIFYRESULT
272	{
273	/** The MSR value prior to the modifications. Valid if fBeforeGp is false */
274	uint64_t uBefore;
275	/** The value that was written. Valid if fBeforeGp is false */
276	uint64_t uWritten;
277	/** The MSR value after the modifications. Valid if AfterGp is false. */
278	uint64_t uAfter;
279	/** Set if we GPed reading the MSR before the modification. */
280	bool fBeforeGp;
281	/** Set if we GPed while trying to write the modified value.
282	* This is set when fBeforeGp is true. */
283	bool fModifyGp;
284	/** Set if we GPed while trying to read the MSR after the modification.
285	* This is set when fBeforeGp is true. */
286	bool fAfterGp;
287	/** Set if we GPed while trying to restore the MSR after the modification.
288	* This is set when fBeforeGp is true. */
289	bool fRestoreGp;
290	/** Structure size alignment padding. */
291	bool afReserved[4];
292	} SUPMSRPROBERMODIFYRESULT, *PSUPMSRPROBERMODIFYRESULT;
293
294
295	/**
296	* The CPU state.
297	*/
298	typedef enum SUPGIPCPUSTATE
299	{
300	/** Invalid CPU state / unused CPU entry. */
301	SUPGIPCPUSTATE_INVALID = 0,
302	/** The CPU is not present. */
303	SUPGIPCPUSTATE_ABSENT,
304	/** The CPU is offline. */
305	SUPGIPCPUSTATE_OFFLINE,
306	/** The CPU is online. */
307	SUPGIPCPUSTATE_ONLINE,
308	/** Force 32-bit enum type. */
309	SUPGIPCPUSTATE_32_BIT_HACK = 0x7fffffff
310	} SUPGIPCPUSTATE;
311
312	/**
313	* Per CPU data.
314	*/
315	typedef struct SUPGIPCPU
316	{
317	/** Update transaction number.
318	* This number is incremented at the start and end of each update. It follows
319	* thusly that odd numbers indicates update in progress, while even numbers
320	* indicate stable data. Use this to make sure that the data items you fetch
321	* are consistent. */
322	volatile uint32_t u32TransactionId;
323	/** The interval in TSC ticks between two NanoTS updates.
324	* This is the average interval over the last 2, 4 or 8 updates + a little slack.
325	* The slack makes the time go a tiny tiny bit slower and extends the interval enough
326	* to avoid ending up with too many 1ns increments. */
327	volatile uint32_t u32UpdateIntervalTSC;
328	/** Current nanosecond timestamp. */
329	volatile uint64_t u64NanoTS;
330	/** The TSC at the time of u64NanoTS. */
331	volatile uint64_t u64TSC;
332	/** Current CPU Frequency. */
333	volatile uint64_t u64CpuHz;
334	/** The TSC delta with reference to the master TSC, subtract from RDTSC. */
335	volatile int64_t i64TSCDelta;
336	/** Number of errors during updating.
337	* Typical errors are under/overflows. */
338	volatile uint32_t cErrors;
339	/** Index of the head item in au32TSCHistory. */
340	volatile uint32_t iTSCHistoryHead;
341	/** Array of recent TSC interval deltas.
342	* The most recent item is at index iTSCHistoryHead.
343	* This history is used to calculate u32UpdateIntervalTSC.
344	*/
345	volatile uint32_t au32TSCHistory[8];
346	/** The interval between the last two NanoTS updates. (experiment for now) */
347	volatile uint32_t u32PrevUpdateIntervalNS;
348
349	/** Reserved for future per processor data. */
350	volatile uint32_t u32Reserved;
351	/** The TSC value read while doing TSC delta measurements across CPUs. */
352	volatile uint64_t u64TSCSample;
353	/** Reserved for future per processor data. */
354	volatile uint32_t au32Reserved1[3];
355
356	/** The CPU state. */
357	SUPGIPCPUSTATE volatile enmState;
358	/** The host CPU ID of this CPU (the SUPGIPCPU is indexed by APIC ID). */
359	RTCPUID idCpu;
360	/** The CPU set index of this CPU. */
361	int16_t iCpuSet;
362	/** CPU group number (always zero, except on windows). */
363	uint16_t iCpuGroup;
364	/** CPU group member number (same as iCpuSet, except on windows). */
365	uint16_t iCpuGroupMember;
366	/** The APIC ID of this CPU. */
367	uint16_t idApic;
368	/** @todo Add topology/NUMA info. */
369	uint32_t iReservedForNumaNode;
370	} SUPGIPCPU;
371	AssertCompileSize(RTCPUID, 4);
372	AssertCompileSize(SUPGIPCPU, 128);
373	AssertCompileMemberAlignment(SUPGIPCPU, u64NanoTS, 8);
374	AssertCompileMemberAlignment(SUPGIPCPU, u64TSC, 8);
375	AssertCompileMemberAlignment(SUPGIPCPU, u64TSCSample, 8);
376
377	/** Pointer to per cpu data.
378	* @remark there is no const version of this typedef, see g_pSUPGlobalInfoPage for details. */
379	typedef SUPGIPCPU *PSUPGIPCPU;
380
381	/**
382	* CPU group information.
383	* @remarks Windows only.
384	*/
385	typedef struct SUPGIPCPUGROUP
386	{
387	/** Current number of CPUs in this group. */
388	uint16_t volatile cMembers;
389	/** Maximum number of CPUs in the group. */
390	uint16_t cMaxMembers;
391	/** The CPU set index of the members. This table has cMaxMembers entries.
392	* @note For various reasons, entries from cMembers and up to cMaxMembers are
393	* may change as the host OS does set dynamic assignments during CPU
394	* hotplugging. */
395	int16_t aiCpuSetIdxs[1];
396	} SUPGIPCPUGROUP;
397	/** Pointer to a GIP CPU group structure. */
398	typedef SUPGIPCPUGROUP *PSUPGIPCPUGROUP;
399	/** Pointer to a const GIP CPU group structure. */
400	typedef SUPGIPCPUGROUP const *PCSUPGIPCPUGROUP;
401
402	/**
403	* The rules concerning the applicability of SUPGIPCPU::i64TscDelta.
404	*/
405	typedef enum SUPGIPUSETSCDELTA
406	{
407	/** Value for SUPGIPMODE_ASYNC_TSC. */
408	SUPGIPUSETSCDELTA_NOT_APPLICABLE = 0,
409	/** The OS specific part of SUPDrv (or the user) claims the TSC is as
410	* good as zero. */
411	SUPGIPUSETSCDELTA_ZERO_CLAIMED,
412	/** The differences in RDTSC output between the CPUs/cores/threads should
413	* be considered zero for all practical purposes. */
414	SUPGIPUSETSCDELTA_PRACTICALLY_ZERO,
415	/** The differences in RDTSC output between the CPUs/cores/threads are a few
416	* hundred ticks or less. (Probably not worth calling ASMGetApicId two times
417	* just to apply deltas.) */
418	SUPGIPUSETSCDELTA_ROUGHLY_ZERO,
419	/** Significant differences in RDTSC output between the CPUs/cores/threads,
420	* deltas must be applied. */
421	SUPGIPUSETSCDELTA_NOT_ZERO,
422	/** End of valid values (exclusive). */
423	SUPGIPUSETSCDELTA_END,
424	/** Make sure the type is 32-bit sized. */
425	SUPGIPUSETSCDELTA_32BIT_HACK = 0x7fffffff
426	} SUPGIPUSETSCDELTA;
427
428
429	/** @name SUPGIPGETCPU_XXX - methods that aCPUs can be indexed.
430	*
431	* @note Linux offers information via selector 0x78, and Windows via selector
432	* 0x53. But since they both support RDTSCP as well, and because most
433	* CPUs now have RDTSCP, we prefer it over LSL. We can implement more
434	* alternatives if it becomes necessary.
435	*
436	* @{
437	*/
438	/** Use ASMGetApicId (or equivalent) and translate the result via
439	* aiCpuFromApicId. */
440	#define SUPGIPGETCPU_APIC_ID RT_BIT_32(0)
441	/** Use RDTSCP and translate the first RTCPUSET_MAX_CPUS of ECX via
442	* aiCpuFromCpuSetIdx.
443	*
444	* Linux stores the RTMpCpuId() value in ECX[11:0] and NUMA node number in
445	* ECX[12:31]. Solaris only stores RTMpCpuId() in ECX. On both systems
446	* RTMpCpuId() == RTMpCpuIdToSetIndex(RTMpCpuId()). RTCPUSET_MAX_CPUS is
447	* currently 64, 256 or 1024 in size, which lower than
448	* 4096, so there shouldn't be any range issues. */
449	#define SUPGIPGETCPU_RDTSCP_MASK_MAX_SET_CPUS RT_BIT_32(1)
450	/** Subtract the max IDT size from IDTR.LIMIT, extract the
451	* first RTCPUSET_MAX_CPUS and translate it via aiCpuFromCpuSetIdx.
452	*
453	* Darwin stores the RTMpCpuId() (== RTMpCpuIdToSetIndex(RTMpCpuId()))
454	* value in the IDT limit. The masking is a precaution against what linux
455	* does with RDTSCP. */
456	#define SUPGIPGETCPU_IDTR_LIMIT_MASK_MAX_SET_CPUS RT_BIT_32(2)
457	/** Windows specific RDTSCP variant, where CH gives you the group and CL gives
458	* you the CPU number within that group.
459	*
460	* Use SUPGLOBALINFOPAGE::aidFirstCpuFromCpuGroup to get the group base CPU set
461	* index, then translate the sum of thru aiCpuFromCpuSetIdx to find the aCPUs
462	* entry.
463	*
464	* @note The group number is actually 16-bit wide (ECX[23:8]), but we simplify
465	* it since we only support 256 CPUs/groups at the moment.
466	*/
467	#define SUPGIPGETCPU_RDTSCP_GROUP_IN_CH_NUMBER_IN_CL RT_BIT_32(3)
468	/** Can use CPUID[0xb].EDX and translate the result via aiCpuFromApicId. */
469	#define SUPGIPGETCPU_APIC_ID_EXT_0B RT_BIT_32(4)
470	/** Can use CPUID[0x8000001e].EAX and translate the result via aiCpuFromApicId. */
471	#define SUPGIPGETCPU_APIC_ID_EXT_8000001E RT_BIT_32(5)
472	/** @} */
473
474	/** @def SUPGIP_MAX_CPU_GROUPS
475	* Maximum number of CPU groups. */
476	#if RTCPUSET_MAX_CPUS >= 256
477	# define SUPGIP_MAX_CPU_GROUPS 256
478	#else
479	# define SUPGIP_MAX_CPU_GROUPS RTCPUSET_MAX_CPUS
480	#endif
481
482	/**
483	* Global Information Page.
484	*
485	* This page contains useful information and can be mapped into any
486	* process or VM. It can be accessed thru the g_pSUPGlobalInfoPage
487	* pointer when a session is open.
488	*/
489	typedef struct SUPGLOBALINFOPAGE
490	{
491	/** Magic (SUPGLOBALINFOPAGE_MAGIC). */
492	uint32_t u32Magic;
493	/** The GIP version. */
494	uint32_t u32Version;
495
496	/** The GIP update mode, see SUPGIPMODE. */
497	uint32_t u32Mode;
498	/** The number of entries in the CPU table.
499	* (This can work as RTMpGetArraySize().) */
500	uint16_t cCpus;
501	/** The size of the GIP in pages. */
502	uint16_t cPages;
503	/** The update frequency of the of the NanoTS. */
504	volatile uint32_t u32UpdateHz;
505	/** The update interval in nanoseconds. (10^9 / u32UpdateHz) */
506	volatile uint32_t u32UpdateIntervalNS;
507	/** The timestamp of the last time we update the update frequency. */
508	volatile uint64_t u64NanoTSLastUpdateHz;
509	/** The TSC frequency of the system. */
510	uint64_t u64CpuHz;
511	/** The number of CPUs that are online. */
512	volatile uint16_t cOnlineCpus;
513	/** The number of CPUs present in the system. */
514	volatile uint16_t cPresentCpus;
515	/** The highest number of CPUs possible. */
516	uint16_t cPossibleCpus;
517	/** The highest number of CPU groups possible. */
518	uint16_t cPossibleCpuGroups;
519	/** The max CPU ID (RTMpGetMaxCpuId). */
520	RTCPUID idCpuMax;
521	/** The applicability of SUPGIPCPU::i64TscDelta. */
522	SUPGIPUSETSCDELTA enmUseTscDelta;
523	/** Mask of SUPGIPGETCPU_XXX values that indicates different ways that aCPU
524	* can be accessed from ring-3 and raw-mode context. */
525	uint32_t fGetGipCpu;
526	/** GIP flags, see SUPGIP_FLAGS_XXX. */
527	volatile uint32_t fFlags;
528	/** The set of online CPUs. */
529	RTCPUSET OnlineCpuSet;
530	#if RTCPUSET_MAX_CPUS < 1024
531	uint64_t abOnlineCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
532	#endif
533	/** The set of present CPUs. */
534	RTCPUSET PresentCpuSet;
535	#if RTCPUSET_MAX_CPUS < 1024
536	uint64_t abPresentCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
537	#endif
538	/** The set of possible CPUs. */
539	RTCPUSET PossibleCpuSet;
540	#if RTCPUSET_MAX_CPUS < 1024
541	uint64_t abPossibleCpuSetPadding[(1024 - RTCPUSET_MAX_CPUS) / 64];
542	#endif
543
544	/** Padding / reserved space for future data. */
545	uint32_t au32Padding1[48];
546
547	/** Table indexed by the CPU APIC ID to get the CPU table index. */
548	uint16_t aiCpuFromApicId[4096];
549	/** CPU set index to CPU table index. */
550	uint16_t aiCpuFromCpuSetIdx[1024];
551	/** Table indexed by CPU group to containing offsets to SUPGIPCPUGROUP
552	* structures, invalid entries are set to UINT32_MAX. The offsets are relative
553	* to the start of this structure.
554	* @note Windows only. The other hosts sets all entries to UINT32_MAX! */
555	uint32_t aoffCpuGroup[SUPGIP_MAX_CPU_GROUPS];
556
557	/** Array of per-cpu data.
558	* This is index by ApicId via the aiCpuFromApicId table.
559	*
560	* The clock and frequency information is updated for all CPUs if @c u32Mode
561	* is SUPGIPMODE_ASYNC_TSC. If @c u32Mode is SUPGIPMODE_SYNC_TSC only the first
562	* entry is updated. If @c u32Mode is SUPGIPMODE_SYNC_TSC the TSC frequency in
563	* @c u64CpuHz is copied to all CPUs. */
564	SUPGIPCPU aCPUs[1];
565	} SUPGLOBALINFOPAGE;
566	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, u64NanoTSLastUpdateHz, 8);
567	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, OnlineCpuSet, 64);
568	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, PresentCpuSet, 64);
569	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, PossibleCpuSet, 64);
570	#if defined(RT_ARCH_SPARC) \|\| defined(RT_ARCH_SPARC64) /* ?? needed ?? */
571	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 32);
572	#else
573	AssertCompileMemberAlignment(SUPGLOBALINFOPAGE, aCPUs, 128);
574	#endif
575
576	/** Pointer to the global info page.
577	* @remark there is no const version of this typedef, see g_pSUPGlobalInfoPage for details. */
578	typedef SUPGLOBALINFOPAGE *PSUPGLOBALINFOPAGE;
579
580
581	/** The value of the SUPGLOBALINFOPAGE::u32Magic field. (Soryo Fuyumi) */
582	#define SUPGLOBALINFOPAGE_MAGIC 0x19590106
583	/** The GIP version.
584	* Upper 16 bits is the major version. Major version is only changed with
585	* incompatible changes in the GIP. */
586	#define SUPGLOBALINFOPAGE_VERSION 0x000a0000
587
588	/**
589	* SUPGLOBALINFOPAGE::u32Mode values.
590	*/
591	typedef enum SUPGIPMODE
592	{
593	/** The usual invalid null entry. */
594	SUPGIPMODE_INVALID = 0,
595	/** The TSC of the cores and cpus in the system is in sync. */
596	SUPGIPMODE_SYNC_TSC,
597	/** Each core has it's own TSC. */
598	SUPGIPMODE_ASYNC_TSC,
599	/** The TSC of the cores are non-stop and have a constant frequency. */
600	SUPGIPMODE_INVARIANT_TSC,
601	/** End of valid GIP mode values (exclusive). */
602	SUPGIPMODE_END,
603	/** The usual 32-bit hack. */
604	SUPGIPMODE_32BIT_HACK = 0x7fffffff
605	} SUPGIPMODE;
606
607	/** Pointer to the Global Information Page.
608	*
609	* This pointer is valid as long as SUPLib has a open session. Anyone using
610	* the page must treat this pointer as highly volatile and not trust it beyond
611	* one transaction.
612	*
613	* @remark The GIP page is read-only to everyone but the support driver and
614	* is actually mapped read only everywhere but in ring-0. However
615	* it is not marked 'const' as this might confuse compilers into
616	* thinking that values doesn't change even if members are marked
617	* as volatile. Thus, there is no PCSUPGLOBALINFOPAGE type.
618	*/
619	#if defined(IN_SUP_R3) \|\| defined(IN_SUP_R0)
620	extern DECLEXPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
621
622	#elif !defined(IN_RING0) \|\| defined(RT_OS_WINDOWS) \|\| defined(RT_OS_SOLARIS) \|\| defined(VBOX_WITH_KMOD_WRAPPED_R0_MODS)
623	extern DECLIMPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
624
625	#else /* IN_RING0 && !RT_OS_WINDOWS */
626	# if !defined(__GNUC__) \|\| defined(RT_OS_DARWIN) \|\| !defined(RT_ARCH_AMD64)
627	# define g_pSUPGlobalInfoPage (&g_SUPGlobalInfoPage)
628	# else
629	# define g_pSUPGlobalInfoPage (SUPGetGIPHlp())
630	/** Workaround for ELF+GCC problem on 64-bit hosts.
631	* (GCC emits a mov with a R_X86_64_32 reloc, we need R_X86_64_64.) */
632	DECLINLINE(PSUPGLOBALINFOPAGE) SUPGetGIPHlp(void)
633	{
634	PSUPGLOBALINFOPAGE pGIP;
635	__asm__ __volatile__ ("movabs $g_SUPGlobalInfoPage,%0\n\t"
636	: "=a" (pGIP));
637	return pGIP;
638	}
639	# endif
640	/** The GIP.
641	* We save a level of indirection by exporting the GIP instead of a variable
642	* pointing to it. */
643	extern DECLIMPORT(SUPGLOBALINFOPAGE) g_SUPGlobalInfoPage;
644	#endif
645
646	/**
647	* Gets the GIP pointer.
648	*
649	* @returns Pointer to the GIP or NULL.
650	*/
651	SUPDECL(PSUPGLOBALINFOPAGE) SUPGetGIP(void);
652
653	/** @name SUPGIP_FLAGS_XXX - SUPR3GipSetFlags flags.
654	* @{ */
655	/** Enable GIP test mode. */
656	#define SUPGIP_FLAGS_TESTING_ENABLE RT_BIT_32(0)
657	/** Valid mask of flags that can be set through the ioctl. */
658	#define SUPGIP_FLAGS_VALID_MASK RT_BIT_32(0)
659	/** GIP test mode needs to be checked (e.g. when enabled or being disabled). */
660	#define SUPGIP_FLAGS_TESTING RT_BIT_32(24)
661	/** Prepare to start GIP test mode. */
662	#define SUPGIP_FLAGS_TESTING_START RT_BIT_32(25)
663	/** Prepare to stop GIP test mode. */
664	#define SUPGIP_FLAGS_TESTING_STOP RT_BIT_32(26)
665	/** @} */
666
667	/** @internal */
668	SUPDECL(PSUPGIPCPU) SUPGetGipCpuPtrForAsyncMode(PSUPGLOBALINFOPAGE pGip);
669	SUPDECL(uint64_t) SUPGetCpuHzFromGipForAsyncMode(PSUPGLOBALINFOPAGE pGip);
670	SUPDECL(bool) SUPIsTscFreqCompatible(uint64_t uCpuHz, uint64_t *puGipCpuHz, bool fRelax);
671	SUPDECL(bool) SUPIsTscFreqCompatibleEx(uint64_t uBaseCpuHz, uint64_t uCpuHz, bool fRelax);
672
673
674	/**
675	* Gets CPU entry of the calling CPU.
676	*
677	* @returns Pointer to the CPU entry on success, NULL on failure.
678	* @param pGip The GIP pointer.
679	*/
680	DECLINLINE(PSUPGIPCPU) SUPGetGipCpuPtr(PSUPGLOBALINFOPAGE pGip)
681	{
682	if (RT_LIKELY( pGip
683	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
684	{
685	switch (pGip->u32Mode)
686	{
687	case SUPGIPMODE_INVARIANT_TSC:
688	case SUPGIPMODE_SYNC_TSC:
689	return &pGip->aCPUs[0];
690	case SUPGIPMODE_ASYNC_TSC:
691	return SUPGetGipCpuPtrForAsyncMode(pGip);
692	default: break; /* shut up gcc */
693	}
694	}
695	AssertFailed();
696	return NULL;
697	}
698
699	/**
700	* Gets the TSC frequency of the calling CPU.
701	*
702	* @returns TSC frequency, UINT64_MAX on failure (asserted).
703	* @param pGip The GIP pointer.
704	*/
705	DECLINLINE(uint64_t) SUPGetCpuHzFromGip(PSUPGLOBALINFOPAGE pGip)
706	{
707	if (RT_LIKELY( pGip
708	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
709	{
710	switch (pGip->u32Mode)
711	{
712	case SUPGIPMODE_INVARIANT_TSC:
713	case SUPGIPMODE_SYNC_TSC:
714	return pGip->aCPUs[0].u64CpuHz;
715	case SUPGIPMODE_ASYNC_TSC:
716	return SUPGetCpuHzFromGipForAsyncMode(pGip);
717	default: break; /* shut up gcc */
718	}
719	}
720	AssertFailed();
721	return UINT64_MAX;
722	}
723
724
725	/**
726	* Gets the TSC frequency of the specified CPU.
727	*
728	* @returns TSC frequency, UINT64_MAX on failure (asserted).
729	* @param pGip The GIP pointer.
730	* @param iCpuSet The CPU set index of the CPU in question.
731	*/
732	DECLINLINE(uint64_t) SUPGetCpuHzFromGipBySetIndex(PSUPGLOBALINFOPAGE pGip, uint32_t iCpuSet)
733	{
734	if (RT_LIKELY( pGip
735	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
736	{
737	switch (pGip->u32Mode)
738	{
739	case SUPGIPMODE_INVARIANT_TSC:
740	case SUPGIPMODE_SYNC_TSC:
741	return pGip->aCPUs[0].u64CpuHz;
742	case SUPGIPMODE_ASYNC_TSC:
743	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
744	{
745	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
746	if (RT_LIKELY(iCpu < pGip->cCpus))
747	return pGip->aCPUs[iCpu].u64CpuHz;
748	}
749	break;
750	default: break; /* shut up gcc */
751	}
752	}
753	AssertFailed();
754	return UINT64_MAX;
755	}
756
757
758	/**
759	* Gets the pointer to the per CPU data for a CPU given by its set index.
760	*
761	* @returns Pointer to the corresponding per CPU structure, or NULL if invalid.
762	* @param pGip The GIP pointer.
763	* @param iCpuSet The CPU set index of the CPU which we want.
764	*/
765	DECLINLINE(PSUPGIPCPU) SUPGetGipCpuBySetIndex(PSUPGLOBALINFOPAGE pGip, uint32_t iCpuSet)
766	{
767	if (RT_LIKELY( pGip
768	&& pGip->u32Magic == SUPGLOBALINFOPAGE_MAGIC))
769	{
770	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
771	{
772	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
773	if (RT_LIKELY(iCpu < pGip->cCpus))
774	return &pGip->aCPUs[iCpu];
775	}
776	}
777	return NULL;
778	}
779
780
781	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_X86) \|\| defined(RT_ARCH_ARM64) \|\|defined(RT_ARCH_ARM32)
782
783	/** @internal */
784	SUPDECL(uint64_t) SUPReadTscWithDelta(PSUPGLOBALINFOPAGE pGip);
785
786	/**
787	* Read the host TSC value and applies the TSC delta if appropriate.
788	*
789	* @returns the TSC value.
790	* @remarks Requires GIP to be initialized and valid.
791	*/
792	DECLINLINE(uint64_t) SUPReadTsc(void)
793	{
794	# if defined(RT_ARCH_ARM64) \|\| defined(RT_ARCH_ARM32) /** @todo portme: ring-0 arm. */
795	return ASMReadTSC();
796	# else
797	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
798	if (!pGip \|\| pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
799	return ASMReadTSC();
800	return SUPReadTscWithDelta(pGip);
801	# endif
802	}
803
804	#endif /* X86 \|\| AMD64 \|\| ARM */
805
806	/** @internal */
807	SUPDECL(int64_t) SUPGetTscDeltaSlow(PSUPGLOBALINFOPAGE pGip);
808
809	/**
810	* Gets the TSC delta for the current CPU.
811	*
812	* @returns The TSC delta value (will not return the special INT64_MAX value).
813	* @param pGip The GIP, NULL is okay in ring-3.
814	* @remarks Requires GIP to be initialized and valid if pGip isn't NULL.
815	*/
816	DECLINLINE(int64_t) SUPGetTscDelta(PSUPGLOBALINFOPAGE pGip)
817	{
818	#ifdef IN_RING3
819	if (!pGip \|\| pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
820	#else
821	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
822	#endif
823	return 0;
824	return SUPGetTscDeltaSlow(pGip);
825	}
826
827
828	/**
829	* Gets the TSC delta for a given CPU.
830	*
831	* @returns The TSC delta value (will not return the special INT64_MAX value).
832	* @param iCpuSet The CPU set index of the CPU which TSC delta we want.
833	* @remarks Requires GIP to be initialized and valid.
834	*/
835	DECLINLINE(int64_t) SUPGetTscDeltaByCpuSetIndex(uint32_t iCpuSet)
836	{
837	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
838	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
839	return 0;
840	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
841	{
842	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
843	if (RT_LIKELY(iCpu < pGip->cCpus))
844	{
845	int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta;
846	if (iTscDelta != INT64_MAX)
847	return iTscDelta;
848	}
849	}
850	AssertFailed();
851	return 0;
852	}
853
854
855	/**
856	* Checks if the TSC delta is available for a given CPU (if TSC-deltas are
857	* relevant).
858	*
859	* @returns true if it's okay to read the TSC, false otherwise.
860	*
861	* @param iCpuSet The CPU set index of the CPU which TSC delta we check.
862	* @remarks Requires GIP to be initialized and valid.
863	*/
864	DECLINLINE(bool) SUPIsTscDeltaAvailableForCpuSetIndex(uint32_t iCpuSet)
865	{
866	PSUPGLOBALINFOPAGE pGip = g_pSUPGlobalInfoPage;
867	if (pGip->enmUseTscDelta <= SUPGIPUSETSCDELTA_ROUGHLY_ZERO)
868	return true;
869	if (RT_LIKELY(iCpuSet < RT_ELEMENTS(pGip->aiCpuFromCpuSetIdx)))
870	{
871	uint16_t iCpu = pGip->aiCpuFromCpuSetIdx[iCpuSet];
872	if (RT_LIKELY(iCpu < pGip->cCpus))
873	{
874	int64_t iTscDelta = pGip->aCPUs[iCpu].i64TSCDelta;
875	if (iTscDelta != INT64_MAX)
876	return true;
877	}
878	}
879	return false;
880	}
881
882
883	/**
884	* Gets the descriptive GIP mode name.
885	*
886	* @returns The name.
887	* @param pGip Pointer to the GIP.
888	*/
889	DECLINLINE(const char *) SUPGetGIPModeName(PSUPGLOBALINFOPAGE pGip)
890	{
891	AssertReturn(pGip, NULL);
892	switch (pGip->u32Mode)
893	{
894	case SUPGIPMODE_INVARIANT_TSC: return "Invariant";
895	case SUPGIPMODE_SYNC_TSC: return "Synchronous";
896	case SUPGIPMODE_ASYNC_TSC: return "Asynchronous";
897	case SUPGIPMODE_INVALID: return "Invalid";
898	default: return "???";
899	}
900	}
901
902
903	/**
904	* Gets the descriptive TSC-delta enum name.
905	*
906	* @returns The name.
907	* @param pGip Pointer to the GIP.
908	*/
909	DECLINLINE(const char *) SUPGetGIPTscDeltaModeName(PSUPGLOBALINFOPAGE pGip)
910	{
911	AssertReturn(pGip, NULL);
912	switch (pGip->enmUseTscDelta)
913	{
914	case SUPGIPUSETSCDELTA_NOT_APPLICABLE: return "Not Applicable";
915	case SUPGIPUSETSCDELTA_ZERO_CLAIMED: return "Zero Claimed";
916	case SUPGIPUSETSCDELTA_PRACTICALLY_ZERO: return "Practically Zero";
917	case SUPGIPUSETSCDELTA_ROUGHLY_ZERO: return "Roughly Zero";
918	case SUPGIPUSETSCDELTA_NOT_ZERO: return "Not Zero";
919	default: return "???";
920	}
921	}
922
923
924	/**
925	* Request for generic VMMR0Entry calls.
926	*/
927	typedef struct SUPVMMR0REQHDR
928	{
929	/** The magic. (SUPVMMR0REQHDR_MAGIC) */
930	uint32_t u32Magic;
931	/** The size of the request. */
932	uint32_t cbReq;
933	} SUPVMMR0REQHDR;
934	/** Pointer to a ring-0 request header. */
935	typedef SUPVMMR0REQHDR *PSUPVMMR0REQHDR;
936	/** the SUPVMMR0REQHDR::u32Magic value (Ethan Iverson - The Bad Plus). */
937	#define SUPVMMR0REQHDR_MAGIC UINT32_C(0x19730211)
938
939
940	/** For the fast ioctl path.
941	* @{
942	*/
943	/** @see VMMR0_DO_HM_RUN. */
944	#define SUP_VMMR0_DO_HM_RUN 0
945	/** @see VMMR0_DO_NEM_RUN */
946	#define SUP_VMMR0_DO_NEM_RUN 1
947	/** @see VMMR0_DO_NOP */
948	#define SUP_VMMR0_DO_NOP 2
949	/** @} */
950
951	/** SUPR3QueryVTCaps capability flags.
952	* @{
953	*/
954	/** AMD-V support. */
955	#define SUPVTCAPS_AMD_V RT_BIT(0)
956	/** VT-x support. */
957	#define SUPVTCAPS_VT_X RT_BIT(1)
958	/** Nested paging is supported. */
959	#define SUPVTCAPS_NESTED_PAGING RT_BIT(2)
960	/** VT-x: Unrestricted guest execution is supported. */
961	#define SUPVTCAPS_VTX_UNRESTRICTED_GUEST RT_BIT(3)
962	/** VT-x: VMCS shadowing is supported. */
963	#define SUPVTCAPS_VTX_VMCS_SHADOWING RT_BIT(4)
964	/** AMD-V: Virtualized VMSAVE/VMLOAD is supported. */
965	#define SUPVTCAPS_AMDV_VIRT_VMSAVE_VMLOAD RT_BIT(5)
966	/** @} */
967
968	/**
969	* Request for generic FNSUPR0SERVICEREQHANDLER calls.
970	*/
971	typedef struct SUPR0SERVICEREQHDR
972	{
973	/** The magic. (SUPR0SERVICEREQHDR_MAGIC) */
974	uint32_t u32Magic;
975	/** The size of the request. */
976	uint32_t cbReq;
977	} SUPR0SERVICEREQHDR;
978	/** Pointer to a ring-0 service request header. */
979	typedef SUPR0SERVICEREQHDR *PSUPR0SERVICEREQHDR;
980	/** the SUPVMMR0REQHDR::u32Magic value (Esbjoern Svensson - E.S.P.). */
981	#define SUPR0SERVICEREQHDR_MAGIC UINT32_C(0x19640416)
982
983
984	/**
985	* Creates a single release event semaphore.
986	*
987	* @returns VBox status code.
988	* @param pSession The session handle of the caller.
989	* @param phEvent Where to return the handle to the event semaphore.
990	*/
991	SUPDECL(int) SUPSemEventCreate(PSUPDRVSESSION pSession, PSUPSEMEVENT phEvent);
992
993	/**
994	* Closes a single release event semaphore handle.
995	*
996	* @returns VBox status code.
997	* @retval VINF_OBJECT_DESTROYED if the semaphore was destroyed.
998	* @retval VINF_SUCCESS if the handle was successfully closed but the semaphore
999	* object remained alive because of other references.
1000	*
1001	* @param pSession The session handle of the caller.
1002	* @param hEvent The handle. Nil is quietly ignored.
1003	*/
1004	SUPDECL(int) SUPSemEventClose(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent);
1005
1006	/**
1007	* Signals a single release event semaphore.
1008	*
1009	* @returns VBox status code.
1010	* @param pSession The session handle of the caller.
1011	* @param hEvent The semaphore handle.
1012	*/
1013	SUPDECL(int) SUPSemEventSignal(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent);
1014
1015	#ifdef IN_RING0
1016	/**
1017	* Waits on a single release event semaphore, not interruptible.
1018	*
1019	* @returns VBox status code.
1020	* @param pSession The session handle of the caller.
1021	* @param hEvent The semaphore handle.
1022	* @param cMillies The number of milliseconds to wait.
1023	* @remarks Not available in ring-3.
1024	*/
1025	SUPDECL(int) SUPSemEventWait(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint32_t cMillies);
1026	#endif
1027
1028	/**
1029	* Waits on a single release event semaphore, interruptible.
1030	*
1031	* @returns VBox status code.
1032	* @param pSession The session handle of the caller.
1033	* @param hEvent The semaphore handle.
1034	* @param cMillies The number of milliseconds to wait.
1035	*/
1036	SUPDECL(int) SUPSemEventWaitNoResume(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint32_t cMillies);
1037
1038	/**
1039	* Waits on a single release event semaphore, interruptible.
1040	*
1041	* @returns VBox status code.
1042	* @param pSession The session handle of the caller.
1043	* @param hEvent The semaphore handle.
1044	* @param uNsTimeout The deadline given on the RTTimeNanoTS() clock.
1045	*/
1046	SUPDECL(int) SUPSemEventWaitNsAbsIntr(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint64_t uNsTimeout);
1047
1048	/**
1049	* Waits on a single release event semaphore, interruptible.
1050	*
1051	* @returns VBox status code.
1052	* @param pSession The session handle of the caller.
1053	* @param hEvent The semaphore handle.
1054	* @param cNsTimeout The number of nanoseconds to wait.
1055	*/
1056	SUPDECL(int) SUPSemEventWaitNsRelIntr(PSUPDRVSESSION pSession, SUPSEMEVENT hEvent, uint64_t cNsTimeout);
1057
1058	/**
1059	* Gets the best timeout resolution that SUPSemEventWaitNsAbsIntr and
1060	* SUPSemEventWaitNsAbsIntr can do.
1061	*
1062	* @returns The resolution in nanoseconds.
1063	* @param pSession The session handle of the caller.
1064	*/
1065	SUPDECL(uint32_t) SUPSemEventGetResolution(PSUPDRVSESSION pSession);
1066
1067
1068	/**
1069	* Creates a multiple release event semaphore.
1070	*
1071	* @returns VBox status code.
1072	* @param pSession The session handle of the caller.
1073	* @param phEventMulti Where to return the handle to the event semaphore.
1074	*/
1075	SUPDECL(int) SUPSemEventMultiCreate(PSUPDRVSESSION pSession, PSUPSEMEVENTMULTI phEventMulti);
1076
1077	/**
1078	* Closes a multiple release event semaphore handle.
1079	*
1080	* @returns VBox status code.
1081	* @retval VINF_OBJECT_DESTROYED if the semaphore was destroyed.
1082	* @retval VINF_SUCCESS if the handle was successfully closed but the semaphore
1083	* object remained alive because of other references.
1084	*
1085	* @param pSession The session handle of the caller.
1086	* @param hEventMulti The handle. Nil is quietly ignored.
1087	*/
1088	SUPDECL(int) SUPSemEventMultiClose(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1089
1090	/**
1091	* Signals a multiple release event semaphore.
1092	*
1093	* @returns VBox status code.
1094	* @param pSession The session handle of the caller.
1095	* @param hEventMulti The semaphore handle.
1096	*/
1097	SUPDECL(int) SUPSemEventMultiSignal(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1098
1099	/**
1100	* Resets a multiple release event semaphore.
1101	*
1102	* @returns VBox status code.
1103	* @param pSession The session handle of the caller.
1104	* @param hEventMulti The semaphore handle.
1105	*/
1106	SUPDECL(int) SUPSemEventMultiReset(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti);
1107
1108	#ifdef IN_RING0
1109	/**
1110	* Waits on a multiple release event semaphore, not interruptible.
1111	*
1112	* @returns VBox status code.
1113	* @param pSession The session handle of the caller.
1114	* @param hEventMulti The semaphore handle.
1115	* @param cMillies The number of milliseconds to wait.
1116	* @remarks Not available in ring-3.
1117	*/
1118	SUPDECL(int) SUPSemEventMultiWait(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint32_t cMillies);
1119	#endif
1120
1121	/**
1122	* Waits on a multiple release event semaphore, interruptible.
1123	*
1124	* @returns VBox status code.
1125	* @param pSession The session handle of the caller.
1126	* @param hEventMulti The semaphore handle.
1127	* @param cMillies The number of milliseconds to wait.
1128	*/
1129	SUPDECL(int) SUPSemEventMultiWaitNoResume(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint32_t cMillies);
1130
1131	/**
1132	* Waits on a multiple release event semaphore, interruptible.
1133	*
1134	* @returns VBox status code.
1135	* @param pSession The session handle of the caller.
1136	* @param hEventMulti The semaphore handle.
1137	* @param uNsTimeout The deadline given on the RTTimeNanoTS() clock.
1138	*/
1139	SUPDECL(int) SUPSemEventMultiWaitNsAbsIntr(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint64_t uNsTimeout);
1140
1141	/**
1142	* Waits on a multiple release event semaphore, interruptible.
1143	*
1144	* @returns VBox status code.
1145	* @param pSession The session handle of the caller.
1146	* @param hEventMulti The semaphore handle.
1147	* @param cNsTimeout The number of nanoseconds to wait.
1148	*/
1149	SUPDECL(int) SUPSemEventMultiWaitNsRelIntr(PSUPDRVSESSION pSession, SUPSEMEVENTMULTI hEventMulti, uint64_t cNsTimeout);
1150
1151	/**
1152	* Gets the best timeout resolution that SUPSemEventMultiWaitNsAbsIntr and
1153	* SUPSemEventMultiWaitNsRelIntr can do.
1154	*
1155	* @returns The resolution in nanoseconds.
1156	* @param pSession The session handle of the caller.
1157	*/
1158	SUPDECL(uint32_t) SUPSemEventMultiGetResolution(PSUPDRVSESSION pSession);
1159
1160
1161	#ifdef IN_RING3
1162
1163	/** @defgroup grp_sup_r3 SUP Host Context Ring-3 API
1164	* @{
1165	*/
1166
1167	/**
1168	* Installs the support library.
1169	*
1170	* @returns VBox status code.
1171	*/
1172	SUPR3DECL(int) SUPR3Install(void);
1173
1174	/**
1175	* Uninstalls the support library.
1176	*
1177	* @returns VBox status code.
1178	*/
1179	SUPR3DECL(int) SUPR3Uninstall(void);
1180
1181	/**
1182	* Trusted main entry point.
1183	*
1184	* This is exported as "TrustedMain" by the dynamic libraries which contains the
1185	* "real" application binary for which the hardened stub is built. The entry
1186	* point is invoked upon successful initialization of the support library and
1187	* runtime.
1188	*
1189	* @returns main kind of exit code.
1190	* @param argc The argument count.
1191	* @param argv The argument vector.
1192	* @param envp The environment vector.
1193	*/
1194	typedef DECLCALLBACKTYPE(int, FNSUPTRUSTEDMAIN,(int argc, char argv, char envp));
1195	/** Pointer to FNSUPTRUSTEDMAIN(). */
1196	typedef FNSUPTRUSTEDMAIN *PFNSUPTRUSTEDMAIN;
1197
1198	/** Which operation failed. */
1199	typedef enum SUPINITOP
1200	{
1201	/** Invalid. */
1202	kSupInitOp_Invalid = 0,
1203	/** Installation integrity error. */
1204	kSupInitOp_Integrity,
1205	/** Setuid related. */
1206	kSupInitOp_RootCheck,
1207	/** Driver related. */
1208	kSupInitOp_Driver,
1209	/** IPRT init related. */
1210	kSupInitOp_IPRT,
1211	/** Miscellaneous. */
1212	kSupInitOp_Misc,
1213	/** Place holder. */
1214	kSupInitOp_End
1215	} SUPINITOP;
1216
1217	/**
1218	* Trusted error entry point, optional.
1219	*
1220	* This is exported as "TrustedError" by the dynamic libraries which contains
1221	* the "real" application binary for which the hardened stub is built. The
1222	* hardened main() must specify SUPSECMAIN_FLAGS_TRUSTED_ERROR when calling
1223	* SUPR3HardenedMain.
1224	*
1225	* @param pszWhere Where the error occurred (function name).
1226	* @param enmWhat Which operation went wrong.
1227	* @param rc The status code.
1228	* @param pszMsgFmt Error message format string.
1229	* @param va The message format arguments.
1230	*/
1231	typedef DECLCALLBACKTYPE(void, FNSUPTRUSTEDERROR,(const char *pszWhere, SUPINITOP enmWhat, int rc,
1232	const char *pszMsgFmt, va_list va)) RT_IPRT_FORMAT_ATTR(4, 0);
1233	/** Pointer to FNSUPTRUSTEDERROR. */
1234	typedef FNSUPTRUSTEDERROR *PFNSUPTRUSTEDERROR;
1235
1236	/**
1237	* Secure main.
1238	*
1239	* This is used for the set-user-ID-on-execute binaries on unixy systems
1240	* and when using the open-vboxdrv-via-root-service setup on Windows.
1241	*
1242	* This function will perform the integrity checks of the VirtualBox
1243	* installation, open the support driver, open the root service (later),
1244	* and load the DLL corresponding to \a pszProgName and execute its main
1245	* function.
1246	*
1247	* @returns Return code appropriate for main().
1248	*
1249	* @param pszProgName The program name. This will be used to figure out which
1250	* DLL/SO/DYLIB to load and execute.
1251	* @param fFlags SUPSECMAIN_FLAGS_XXX.
1252	* @param argc The argument count.
1253	* @param argv The argument vector.
1254	* @param envp The environment vector.
1255	*/
1256	DECLHIDDEN(int) SUPR3HardenedMain(const char pszProgName, uint32_t fFlags, int argc, char argv, char *envp);
1257
1258	/** @name SUPSECMAIN_FLAGS_XXX - SUPR3HardenedMain flags.
1259	* @{ */
1260	/** Don't open the device. (Intended for VirtualBox without -startvm.) */
1261	#define SUPSECMAIN_FLAGS_DONT_OPEN_DEV RT_BIT_32(0)
1262	/** The hardened DLL has a "TrustedError" function (see FNSUPTRUSTEDERROR). */
1263	#define SUPSECMAIN_FLAGS_TRUSTED_ERROR RT_BIT_32(1)
1264	/** Hack for making VirtualBoxVM use VirtualBox.dylib on Mac OS X.
1265	* @note Not used since 6.0 */
1266	#define SUPSECMAIN_FLAGS_OSX_VM_APP RT_BIT_32(2)
1267	/** The first process.
1268	* @internal */
1269	#define SUPSECMAIN_FLAGS_FIRST_PROCESS RT_BIT_32(3)
1270	/** Program binary location mask. */
1271	#define SUPSECMAIN_FLAGS_LOC_MASK UINT32_C(0x00000030)
1272	/** Default binary location is the application binary directory. Does
1273	* not need to be given explicitly (it's 0). */
1274	#define SUPSECMAIN_FLAGS_LOC_APP_BIN UINT32_C(0x00000000)
1275	/** The binary is located in the testcase directory instead of the
1276	* default application binary directory. */
1277	#define SUPSECMAIN_FLAGS_LOC_TESTCASE UINT32_C(0x00000010)
1278	/** The binary is located in a nested application bundle under Resources/ in the
1279	* main Mac OS X application (think Resources/VirtualBoxVM.app). */
1280	#define SUPSECMAIN_FLAGS_LOC_OSX_HLP_APP UINT32_C(0x00000020)
1281	/** Force driverless mode. */
1282	#define SUPSECMAIN_FLAGS_DRIVERLESS RT_BIT_32(8)
1283	/** Driverless IEM-only mode is allowed, so don't fail fatally just because
1284	* the VBox support driver is unavailable. */
1285	#define SUPSECMAIN_FLAGS_DRIVERLESS_IEM_ALLOWED RT_BIT_32(9)
1286	#ifdef VBOX_WITH_DRIVERLESS_NEM_FALLBACK
1287	/** Driverless NEM is a fallback posibility, so don't fail fatally just
1288	* because the VBox support driver is unavailable.
1289	* This may imply checking NEM requirements, depending on the host.
1290	* @note Not supported on Windows. */
1291	# define SUPSECMAIN_FLAGS_DRIVERLESS_NEM_FALLBACK RT_BIT_32(10)
1292	#endif
1293
1294	/** @} */
1295
1296	/**
1297	* Initializes the support library.
1298	*
1299	* Each successful call to SUPR3Init() or SUPR3InitEx must be countered by a
1300	* call to SUPR3Term(false).
1301	*
1302	* @returns VBox status code.
1303	* @param ppSession Where to store the session handle. Defaults to NULL.
1304	*/
1305	SUPR3DECL(int) SUPR3Init(PSUPDRVSESSION *ppSession);
1306
1307	/**
1308	* Initializes the support library, extended version.
1309	*
1310	* Each successful call to SUPR3Init() or SUPR3InitEx must be countered by a
1311	* call to SUPR3Term(false).
1312	*
1313	* @returns VBox status code.
1314	* @param fFlags SUPR3INIT_F_XXX
1315	* @param ppSession Where to store the session handle. Defaults to NULL.
1316	*/
1317	SUPR3DECL(int) SUPR3InitEx(uint32_t fFlags, PSUPDRVSESSION *ppSession);
1318	/** @name SUPR3INIT_F_XXX - Flags for SUPR3InitEx
1319	* @{ */
1320	/** Unrestricted access. */
1321	#define SUPR3INIT_F_UNRESTRICTED RT_BIT_32(0)
1322	/** Limited access (for Main). */
1323	#define SUPR3INIT_F_LIMITED RT_BIT_32(1)
1324	/** Force driverless mode. */
1325	#define SUPR3INIT_F_DRIVERLESS RT_BIT_32(2)
1326	/** Allow driverless IEM mode if the VBox support driver is unavailable.
1327	* @see SUPSECMAIN_FLAGS_DRIVERLESS_IEM_ALLOWED */
1328	#define SUPR3INIT_F_DRIVERLESS_IEM_ALLOWED RT_BIT_32(3)
1329	#ifdef VBOX_WITH_DRIVERLESS_NEM_FALLBACK
1330	/** Allow driverless NEM mode as fallback if the VBox support driver is unavailable.
1331	* @see SUPSECMAIN_FLAGS_DRIVERLESS_NEM_FALLBACK */
1332	# define SUPR3INIT_F_DRIVERLESS_NEM_FALLBACK RT_BIT_32(4)
1333	#endif
1334	/** Mask with all the flags that may trigger driverless mode. */
1335	#ifdef VBOX_WITH_DRIVERLESS_NEM_FALLBACK
1336	# define SUPR3INIT_F_DRIVERLESS_MASK UINT32_C(0x0000001c)
1337	#else
1338	# define SUPR3INIT_F_DRIVERLESS_MASK UINT32_C(0x0000000c)
1339	#endif
1340	/** @} */
1341
1342	/**
1343	* Terminates the support library.
1344	*
1345	* @returns VBox status code.
1346	* @param fForced Forced termination. This means to ignore the
1347	* init call count and just terminated.
1348	*/
1349	#ifdef __cplusplus
1350	SUPR3DECL(int) SUPR3Term(bool fForced = false);
1351	#else
1352	SUPR3DECL(int) SUPR3Term(int fForced);
1353	#endif
1354
1355	/**
1356	* Check if the support library is operating in driverless mode.
1357	*
1358	* @returns true/false accordingly.
1359	* @see SUPR3INIT_F_DRIVERLESS_IEM_ALLOWED,
1360	* SUPR3INIT_F_DRIVERLESS_NEM_FALLBACK
1361	*/
1362	SUPR3DECL(bool) SUPR3IsDriverless(void);
1363
1364	/**
1365	* Sets the ring-0 VM handle for use with fast IOCtls.
1366	*
1367	* @returns VBox status code.
1368	* @param pVMR0 The ring-0 VM handle.
1369	* NIL_RTR0PTR can be used to unset the handle when the
1370	* VM is about to be destroyed.
1371	*/
1372	SUPR3DECL(int) SUPR3SetVMForFastIOCtl(PVMR0 pVMR0);
1373
1374	/**
1375	* Calls the HC R0 VMM entry point.
1376	* See VMMR0Entry() for more details.
1377	*
1378	* @returns error code specific to uFunction.
1379	* @param pVMR0 Pointer to the Ring-0 (Host Context) mapping of the VM structure.
1380	* @param idCpu The virtual CPU ID.
1381	* @param uOperation Operation to execute.
1382	* @param pvArg Argument.
1383	*/
1384	SUPR3DECL(int) SUPR3CallVMMR0(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, void *pvArg);
1385
1386	/**
1387	* Variant of SUPR3CallVMMR0, except that this takes the fast ioclt path
1388	* regardsless of compile-time defaults.
1389	*
1390	* @returns VBox status code.
1391	* @param pVMR0 The ring-0 VM handle.
1392	* @param uOperation The operation; only the SUP_VMMR0_DO_* ones are valid.
1393	* @param idCpu The virtual CPU ID.
1394	*/
1395	SUPR3DECL(int) SUPR3CallVMMR0Fast(PVMR0 pVMR0, unsigned uOperation, VMCPUID idCpu);
1396
1397	/**
1398	* Calls the HC R0 VMM entry point, in a safer but slower manner than
1399	* SUPR3CallVMMR0. When entering using this call the R0 components can call
1400	* into the host kernel (i.e. use the SUPR0 and RT APIs).
1401	*
1402	* See VMMR0Entry() for more details.
1403	*
1404	* @returns error code specific to uFunction.
1405	* @param pVMR0 Pointer to the Ring-0 (Host Context) mapping of the VM structure.
1406	* @param idCpu The virtual CPU ID.
1407	* @param uOperation Operation to execute.
1408	* @param u64Arg Constant argument.
1409	* @param pReqHdr Pointer to a request header. Optional.
1410	* This will be copied in and out of kernel space. There currently is a size
1411	* limit on this, just below 4KB.
1412	*/
1413	SUPR3DECL(int) SUPR3CallVMMR0Ex(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr);
1414
1415	/**
1416	* Calls a ring-0 service.
1417	*
1418	* The operation and the request packet is specific to the service.
1419	*
1420	* @returns error code specific to uFunction.
1421	* @param pszService The service name.
1422	* @param cchService The length of the service name.
1423	* @param uOperation The request number.
1424	* @param u64Arg Constant argument.
1425	* @param pReqHdr Pointer to a request header. Optional.
1426	* This will be copied in and out of kernel space. There currently is a size
1427	* limit on this, just below 4KB.
1428	*/
1429	SUPR3DECL(int) SUPR3CallR0Service(const char *pszService, size_t cchService, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr);
1430
1431	/** Which logger. */
1432	typedef enum SUPLOGGER
1433	{
1434	SUPLOGGER_DEBUG = 1,
1435	SUPLOGGER_RELEASE
1436	} SUPLOGGER;
1437
1438	/**
1439	* Changes the settings of the specified ring-0 logger.
1440	*
1441	* @returns VBox status code.
1442	* @param enmWhich Which logger.
1443	* @param pszFlags The flags settings.
1444	* @param pszGroups The groups settings.
1445	* @param pszDest The destination specificier.
1446	*/
1447	SUPR3DECL(int) SUPR3LoggerSettings(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest);
1448
1449	/**
1450	* Creates a ring-0 logger instance.
1451	*
1452	* @returns VBox status code.
1453	* @param enmWhich Which logger to create.
1454	* @param pszFlags The flags settings.
1455	* @param pszGroups The groups settings.
1456	* @param pszDest The destination specificier.
1457	*/
1458	SUPR3DECL(int) SUPR3LoggerCreate(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest);
1459
1460	/**
1461	* Destroys a ring-0 logger instance.
1462	*
1463	* @returns VBox status code.
1464	* @param enmWhich Which logger.
1465	*/
1466	SUPR3DECL(int) SUPR3LoggerDestroy(SUPLOGGER enmWhich);
1467
1468	/**
1469	* Queries the paging mode of the host OS.
1470	*
1471	* @returns The paging mode.
1472	*/
1473	SUPR3DECL(SUPPAGINGMODE) SUPR3GetPagingMode(void);
1474
1475	/**
1476	* Allocate zero-filled pages.
1477	*
1478	* Use this to allocate a number of pages suitable for seeding / locking.
1479	* Call SUPR3PageFree() to free the pages once done with them.
1480	*
1481	* @returns VBox status.
1482	* @param cPages Number of pages to allocate.
1483	* @param fFlags SUP_PAGE_ALLOC_F_XXX
1484	* @param ppvPages Where to store the base pointer to the allocated pages.
1485	*/
1486	SUPR3DECL(int) SUPR3PageAlloc(size_t cPages, uint32_t fFlags, void **ppvPages);
1487
1488	/** @name SUP_PAGE_ALLOC_F_XXX - SUPR3PageAlloc flags.
1489	* @{ */
1490	/** Use large pages if available. */
1491	#define SUP_PAGE_ALLOC_F_LARGE_PAGES RT_BIT_32(0)
1492	/** Advice that the allocated pages will probably be locked by
1493	* RTR0MemObjLockUser later, so play nice if needed. */
1494	#define SUP_PAGE_ALLOC_F_FOR_LOCKING RT_BIT_32(1)
1495	/** Mask of valid flags. */
1496	#define SUP_PAGE_ALLOC_F_VALID_MASK UINT32_C(0x00000003)
1497	/** @} */
1498
1499	/**
1500	* Frees pages allocated with SUPR3PageAlloc().
1501	*
1502	* @returns VBox status.
1503	* @param pvPages Pointer returned by SUPR3PageAlloc().
1504	* @param cPages Number of pages that was allocated.
1505	*/
1506	SUPR3DECL(int) SUPR3PageFree(void *pvPages, size_t cPages);
1507
1508	/**
1509	* Allocate non-zeroed, locked, pages with user and, optionally, kernel
1510	* mappings.
1511	*
1512	* Use SUPR3PageFreeEx() to free memory allocated with this function.
1513	*
1514	* @returns VBox status code.
1515	* @param cPages The number of pages to allocate.
1516	* @param fFlags Flags, reserved. Must be zero.
1517	* @param ppvPages Where to store the address of the user mapping.
1518	* @param pR0Ptr Where to store the address of the kernel mapping.
1519	* NULL if no kernel mapping is desired.
1520	* @param paPages Where to store the physical addresses of each page.
1521	* Optional.
1522	*/
1523	SUPR3DECL(int) SUPR3PageAllocEx(size_t cPages, uint32_t fFlags, void **ppvPages, PRTR0PTR pR0Ptr, PSUPPAGE paPages);
1524
1525	/**
1526	* Maps a portion of a ring-3 only allocation into kernel space.
1527	*
1528	* @returns VBox status code.
1529	*
1530	* @param pvR3 The address SUPR3PageAllocEx return.
1531	* @param off Offset to start mapping at. Must be page aligned.
1532	* @param cb Number of bytes to map. Must be page aligned.
1533	* @param fFlags Flags, must be zero.
1534	* @param pR0Ptr Where to store the address on success.
1535	*
1536	*/
1537	SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr);
1538
1539	/**
1540	* Changes the protection of
1541	*
1542	* @returns VBox status code.
1543	* @retval VERR_NOT_SUPPORTED if the OS doesn't allow us to change page level
1544	* protection. See also RTR0MemObjProtect.
1545	*
1546	* @param pvR3 The ring-3 address SUPR3PageAllocEx returned.
1547	* @param R0Ptr The ring-0 address SUPR3PageAllocEx returned if it
1548	* is desired that the corresponding ring-0 page
1549	* mappings should change protection as well. Pass
1550	* NIL_RTR0PTR if the ring-0 pages should remain
1551	* unaffected.
1552	* @param off Offset to start at which to start chagning the page
1553	* level protection. Must be page aligned.
1554	* @param cb Number of bytes to change. Must be page aligned.
1555	* @param fProt The new page level protection, either a combination
1556	* of RTMEM_PROT_READ, RTMEM_PROT_WRITE and
1557	* RTMEM_PROT_EXEC, or just RTMEM_PROT_NONE.
1558	*/
1559	SUPR3DECL(int) SUPR3PageProtect(void *pvR3, RTR0PTR R0Ptr, uint32_t off, uint32_t cb, uint32_t fProt);
1560
1561	/**
1562	* Free pages allocated by SUPR3PageAllocEx.
1563	*
1564	* @returns VBox status code.
1565	* @param pvPages The address of the user mapping.
1566	* @param cPages The number of pages.
1567	*/
1568	SUPR3DECL(int) SUPR3PageFreeEx(void *pvPages, size_t cPages);
1569
1570	/**
1571	* Allocated memory with page aligned memory with a contiguous and locked physical
1572	* memory backing below 4GB.
1573	*
1574	* @returns Pointer to the allocated memory (virtual address).
1575	* *pHCPhys is set to the physical address of the memory.
1576	* If ppvR0 isn't NULL, *ppvR0 is set to the ring-0 mapping.
1577	* The returned memory must be freed using SUPR3ContFree().
1578	* @returns NULL on failure.
1579	* @param cPages Number of pages to allocate.
1580	* @param pR0Ptr Where to store the ring-0 mapping of the allocation. (optional)
1581	* @param pHCPhys Where to store the physical address of the memory block.
1582	*
1583	* @remark This 2nd version of this API exists because we're not able to map the
1584	* ring-3 mapping executable on WIN64. This is a serious problem in regard to
1585	* the world switchers.
1586	*/
1587	SUPR3DECL(void *) SUPR3ContAlloc(size_t cPages, PRTR0PTR pR0Ptr, PRTHCPHYS pHCPhys);
1588
1589	/**
1590	* Frees memory allocated with SUPR3ContAlloc().
1591	*
1592	* @returns VBox status code.
1593	* @param pv Pointer to the memory block which should be freed.
1594	* @param cPages Number of pages to be freed.
1595	*/
1596	SUPR3DECL(int) SUPR3ContFree(void *pv, size_t cPages);
1597
1598	/**
1599	* Allocated non contiguous physical memory below 4GB.
1600	*
1601	* The memory isn't zeroed.
1602	*
1603	* @returns VBox status code.
1604	* @returns NULL on failure.
1605	* @param cPages Number of pages to allocate.
1606	* @param ppvPages Where to store the pointer to the allocated memory.
1607	* The pointer stored here on success must be passed to
1608	* SUPR3LowFree when the memory should be released.
1609	* @param ppvPagesR0 Where to store the ring-0 pointer to the allocated memory. optional.
1610	* @param paPages Where to store the physical addresses of the individual pages.
1611	*/
1612	SUPR3DECL(int) SUPR3LowAlloc(size_t cPages, void **ppvPages, PRTR0PTR ppvPagesR0, PSUPPAGE paPages);
1613
1614	/**
1615	* Frees memory allocated with SUPR3LowAlloc().
1616	*
1617	* @returns VBox status code.
1618	* @param pv Pointer to the memory block which should be freed.
1619	* @param cPages Number of pages that was allocated.
1620	*/
1621	SUPR3DECL(int) SUPR3LowFree(void *pv, size_t cPages);
1622
1623	/**
1624	* Load a module into R0 HC.
1625	*
1626	* This will verify the file integrity in a similar manner as
1627	* SUPR3HardenedVerifyFile before loading it.
1628	*
1629	* @returns VBox status code.
1630	* @param pszFilename The path to the image file.
1631	* @param pszModule The module name. Max 32 bytes.
1632	* @param ppvImageBase Where to store the image address.
1633	* @param pErrInfo Where to return extended error information.
1634	* Optional.
1635	*/
1636	SUPR3DECL(int) SUPR3LoadModule(const char pszFilename, const char pszModule, void **ppvImageBase, PRTERRINFO pErrInfo);
1637
1638	/**
1639	* Load a module into R0 HC.
1640	*
1641	* This will verify the file integrity in a similar manner as
1642	* SUPR3HardenedVerifyFile before loading it.
1643	*
1644	* @returns VBox status code.
1645	* @param pszFilename The path to the image file.
1646	* @param pszModule The module name. Max 32 bytes.
1647	* @param pszSrvReqHandler The name of the service request handler entry
1648	* point. See FNSUPR0SERVICEREQHANDLER.
1649	* @param ppvImageBase Where to store the image address.
1650	*/
1651	SUPR3DECL(int) SUPR3LoadServiceModule(const char pszFilename, const char pszModule,
1652	const char pszSrvReqHandler, void *ppvImageBase);
1653
1654	/**
1655	* Frees a R0 HC module.
1656	*
1657	* @returns VBox status code.
1658	* @param pvImageBase The base address of the image to free.
1659	* @remark This will not actually 'free' the module, there are of course usage counting.
1660	*/
1661	SUPR3DECL(int) SUPR3FreeModule(void *pvImageBase);
1662
1663	/**
1664	* Lock down the module loader interface.
1665	*
1666	* This will lock down the module loader interface. No new modules can be
1667	* loaded and all loaded modules can no longer be freed.
1668	*
1669	* @returns VBox status code.
1670	* @param pErrInfo Where to return extended error information.
1671	* Optional.
1672	*/
1673	SUPR3DECL(int) SUPR3LockDownLoader(PRTERRINFO pErrInfo);
1674
1675	/**
1676	* Get the address of a symbol in a ring-0 module.
1677	*
1678	* @returns VBox status code.
1679	* @param pvImageBase The base address of the image to search.
1680	* @param pszSymbol Symbol name. If it's value is less than 64k it's treated like a
1681	* ordinal value rather than a string pointer.
1682	* @param ppvValue Where to store the symbol value.
1683	*/
1684	SUPR3DECL(int) SUPR3GetSymbolR0(void pvImageBase, const char pszSymbol, void **ppvValue);
1685
1686	/**
1687	* Load R0 HC VMM code.
1688	*
1689	* @returns VBox status code.
1690	* @deprecated Use SUPR3LoadModule(pszFilename, "VMMR0.r0", &pvImageBase)
1691	* @param pszFilename Full path to the VMMR0.r0 file (silly).
1692	* @param pErrInfo Where to return extended error information.
1693	* Optional.
1694	*/
1695	SUPR3DECL(int) SUPR3LoadVMM(const char *pszFilename, PRTERRINFO pErrInfo);
1696
1697	/**
1698	* Unloads R0 HC VMM code.
1699	*
1700	* @returns VBox status code.
1701	* @deprecated Use SUPR3FreeModule().
1702	*/
1703	SUPR3DECL(int) SUPR3UnloadVMM(void);
1704
1705	/**
1706	* Get the physical address of the GIP.
1707	*
1708	* @returns VBox status code.
1709	* @param pHCPhys Where to store the physical address of the GIP.
1710	*/
1711	SUPR3DECL(int) SUPR3GipGetPhys(PRTHCPHYS pHCPhys);
1712
1713	/**
1714	* Initializes only the bits relevant for the SUPR3HardenedVerify* APIs.
1715	*
1716	* This is for users that don't necessarily need to initialize the whole of
1717	* SUPLib. There is no harm in calling this one more time.
1718	*
1719	* @returns VBox status code.
1720	* @remarks Currently not counted, so only call once.
1721	*/
1722	SUPR3DECL(int) SUPR3HardenedVerifyInit(void);
1723
1724	/**
1725	* Reverses the effect of SUPR3HardenedVerifyInit if SUPR3InitEx hasn't been
1726	* called.
1727	*
1728	* Ignored if the support library was initialized using SUPR3Init or
1729	* SUPR3InitEx.
1730	*
1731	* @returns VBox status code.
1732	*/
1733	SUPR3DECL(int) SUPR3HardenedVerifyTerm(void);
1734
1735	/**
1736	* Verifies the integrity of a file, and optionally opens it.
1737	*
1738	* The integrity check is for whether the file is suitable for loading into
1739	* the hypervisor or VM process. The integrity check may include verifying
1740	* the authenticode/elfsign/whatever signature of the file, which can take
1741	* a little while.
1742	*
1743	* @returns VBox status code. On failure it will have printed a LogRel message.
1744	*
1745	* @param pszFilename The file.
1746	* @param pszWhat For the LogRel on failure.
1747	* @param phFile Where to store the handle to the opened file. This is optional, pass NULL
1748	* if the file should not be opened.
1749	* @deprecated Write a new one.
1750	*/
1751	SUPR3DECL(int) SUPR3HardenedVerifyFile(const char pszFilename, const char pszWhat, PRTFILE phFile);
1752
1753	/**
1754	* Verifies the integrity of a the current process, including the image
1755	* location and that the invocation was absolute.
1756	*
1757	* This must currently be called after initializing the runtime. The intended
1758	* audience is set-uid-to-root applications, root services and similar.
1759	*
1760	* @returns VBox status code. On failure
1761	* message.
1762	* @param pszArgv0 The first argument to main().
1763	* @param fInternal Set this to @c true if this is an internal
1764	* VirtualBox application. Otherwise pass @c false.
1765	* @param pErrInfo Where to return extended error information.
1766	*/
1767	SUPR3DECL(int) SUPR3HardenedVerifySelf(const char *pszArgv0, bool fInternal, PRTERRINFO pErrInfo);
1768
1769	/**
1770	* Verifies the integrity of an installation directory.
1771	*
1772	* The integrity check verifies that the directory cannot be tampered with by
1773	* normal users on the system. On Unix this translates to root ownership and
1774	* no symbolic linking.
1775	*
1776	* @returns VBox status code. On failure a message will be stored in @a pszErr.
1777	*
1778	* @param pszDirPath The directory path.
1779	* @param fRecursive Whether the check should be recursive or
1780	* not. When set, all sub-directores will be checked,
1781	* including files (@a fCheckFiles is ignored).
1782	* @param fCheckFiles Whether to apply the same basic integrity check to
1783	* the files in the directory as the directory itself.
1784	* @param pErrInfo Where to return extended error information.
1785	* Optional.
1786	*/
1787	SUPR3DECL(int) SUPR3HardenedVerifyDir(const char *pszDirPath, bool fRecursive, bool fCheckFiles, PRTERRINFO pErrInfo);
1788
1789	/**
1790	* Verifies the integrity of a plug-in module.
1791	*
1792	* This is similar to SUPR3HardenedLdrLoad, except it does not load the module
1793	* and that the module does not have to be shipped with VirtualBox.
1794	*
1795	* @returns VBox status code. On failure a message will be stored in @a pszErr.
1796	*
1797	* @param pszFilename The filename of the plug-in module (nothing can be
1798	* omitted here).
1799	* @param pErrInfo Where to return extended error information.
1800	* Optional.
1801	*/
1802	SUPR3DECL(int) SUPR3HardenedVerifyPlugIn(const char *pszFilename, PRTERRINFO pErrInfo);
1803
1804	/**
1805	* Same as RTLdrLoad() but will verify the files it loads (hardened builds).
1806	*
1807	* Will add dll suffix if missing and try load the file.
1808	*
1809	* @returns iprt status code.
1810	* @param pszFilename Image filename. This must have a path.
1811	* @param phLdrMod Where to store the handle to the loaded module.
1812	* @param fFlags See RTLDRLOAD_FLAGS_XXX.
1813	* @param pErrInfo Where to return extended error information.
1814	* Optional.
1815	*/
1816	SUPR3DECL(int) SUPR3HardenedLdrLoad(const char *pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo);
1817
1818	/**
1819	* Same as RTLdrLoadAppPriv() but it will verify the files it loads (hardened
1820	* builds).
1821	*
1822	* Will add dll suffix to the file if missing, then look for it in the
1823	* architecture dependent application directory.
1824	*
1825	* @returns iprt status code.
1826	* @param pszFilename Image filename.
1827	* @param phLdrMod Where to store the handle to the loaded module.
1828	* @param fFlags See RTLDRLOAD_FLAGS_XXX.
1829	* @param pErrInfo Where to return extended error information.
1830	* Optional.
1831	*/
1832	SUPR3DECL(int) SUPR3HardenedLdrLoadAppPriv(const char *pszFilename, PRTLDRMOD phLdrMod, uint32_t fFlags, PRTERRINFO pErrInfo);
1833
1834	/**
1835	* Same as RTLdrLoad() but will verify the files it loads (hardened builds).
1836	*
1837	* This differs from SUPR3HardenedLdrLoad() in that it can load modules from
1838	* extension packs and anything else safely installed on the system, provided
1839	* they pass the hardening tests.
1840	*
1841	* @returns iprt status code.
1842	* @param pszFilename The full path to the module, with extension.
1843	* @param phLdrMod Where to store the handle to the loaded module.
1844	* @param pErrInfo Where to return extended error information.
1845	* Optional.
1846	*/
1847	SUPR3DECL(int) SUPR3HardenedLdrLoadPlugIn(const char *pszFilename, PRTLDRMOD phLdrMod, PRTERRINFO pErrInfo);
1848
1849	/**
1850	* Check if the host kernel can run in VMX root mode.
1851	*
1852	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1853	* @param ppszWhy Where to return an explanatory message on failure.
1854	*/
1855	SUPR3DECL(int) SUPR3QueryVTxSupported(const char **ppszWhy);
1856
1857	/**
1858	* Return VT-x/AMD-V capabilities.
1859	*
1860	* @returns VINF_SUCCESS if supported, error code indicating why if not.
1861	* @param pfCaps Pointer to capability dword (out).
1862	* @todo Intended for main, which means we need to relax the privilege requires
1863	* when accessing certain vboxdrv functions.
1864	*/
1865	SUPR3DECL(int) SUPR3QueryVTCaps(uint32_t *pfCaps);
1866
1867	/**
1868	* Check if NEM is supported when no VT-x/AMD-V is indicated by the CPU.
1869	*
1870	* This is really only for the windows case where we're running in a root
1871	* partition and isn't allowed to use the hardware directly.
1872	*
1873	* @returns True if NEM API support, false if not.
1874	*/
1875	SUPR3DECL(bool) SUPR3IsNemSupportedWhenNoVtxOrAmdV(void);
1876
1877	/**
1878	* Open the tracer.
1879	*
1880	* @returns VBox status code.
1881	* @param uCookie Cookie identifying the tracer we expect to talk to.
1882	* @param uArg Tracer specific open argument.
1883	*/
1884	SUPR3DECL(int) SUPR3TracerOpen(uint32_t uCookie, uintptr_t uArg);
1885
1886	/**
1887	* Closes the tracer.
1888	*
1889	* @returns VBox status code.
1890	*/
1891	SUPR3DECL(int) SUPR3TracerClose(void);
1892
1893	/**
1894	* Perform an I/O request on the tracer.
1895	*
1896	* @returns VBox status.
1897	* @param uCmd The tracer command.
1898	* @param uArg The argument.
1899	* @param piRetVal Where to store the tracer return value.
1900	*/
1901	SUPR3DECL(int) SUPR3TracerIoCtl(uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal);
1902
1903	/**
1904	* Registers the user module with the tracer.
1905	*
1906	* @returns VBox status code.
1907	* @param hModNative Native module handle. Pass ~(uintptr_t)0 if not
1908	* at hand.
1909	* @param pszModule The module name.
1910	* @param pVtgHdr The VTG header.
1911	* @param uVtgHdrAddr The address to which the VTG header is loaded
1912	* in the relevant execution context.
1913	* @param fFlags See SUP_TRACER_UMOD_FLAGS_XXX
1914	*/
1915	SUPR3DECL(int) SUPR3TracerRegisterModule(uintptr_t hModNative, const char pszModule, struct VTGOBJHDR pVtgHdr,
1916	RTUINTPTR uVtgHdrAddr, uint32_t fFlags);
1917
1918	/**
1919	* Deregisters the user module.
1920	*
1921	* @returns VBox status code.
1922	* @param pVtgHdr The VTG header.
1923	*/
1924	SUPR3DECL(int) SUPR3TracerDeregisterModule(struct VTGOBJHDR *pVtgHdr);
1925
1926	/**
1927	* Fire the probe.
1928	*
1929	* @param pVtgProbeLoc The probe location record.
1930	* @param uArg0 Raw probe argument 0.
1931	* @param uArg1 Raw probe argument 1.
1932	* @param uArg2 Raw probe argument 2.
1933	* @param uArg3 Raw probe argument 3.
1934	* @param uArg4 Raw probe argument 4.
1935	*/
1936	SUPDECL(void) SUPTracerFireProbe(struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
1937	uintptr_t uArg3, uintptr_t uArg4);
1938
1939	/**
1940	* Attempts to read the value of an MSR.
1941	*
1942	* @returns VBox status code.
1943	* @param uMsr The MSR to read.
1944	* @param idCpu The CPU to read it on, NIL_RTCPUID if it doesn't
1945	* matter which CPU.
1946	* @param puValue Where to return the value.
1947	* @param pfGp Where to store the \#GP indicator for the read
1948	* operation.
1949	*/
1950	SUPR3DECL(int) SUPR3MsrProberRead(uint32_t uMsr, RTCPUID idCpu, uint64_t puValue, bool pfGp);
1951
1952	/**
1953	* Attempts to write to an MSR.
1954	*
1955	* @returns VBox status code.
1956	* @param uMsr The MSR to write to.
1957	* @param idCpu The CPU to wrtie it on, NIL_RTCPUID if it
1958	* doesn't matter which CPU.
1959	* @param uValue The value to write.
1960	* @param pfGp Where to store the \#GP indicator for the write
1961	* operation.
1962	*/
1963	SUPR3DECL(int) SUPR3MsrProberWrite(uint32_t uMsr, RTCPUID idCpu, uint64_t uValue, bool *pfGp);
1964
1965	/**
1966	* Attempts to modify the value of an MSR.
1967	*
1968	* @returns VBox status code.
1969	* @param uMsr The MSR to modify.
1970	* @param idCpu The CPU to modify it on, NIL_RTCPUID if it
1971	* doesn't matter which CPU.
1972	* @param fAndMask The bits to keep in the current MSR value.
1973	* @param fOrMask The bits to set before writing.
1974	* @param pResult The result buffer.
1975	*/
1976	SUPR3DECL(int) SUPR3MsrProberModify(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask,
1977	PSUPMSRPROBERMODIFYRESULT pResult);
1978
1979	/**
1980	* Attempts to modify the value of an MSR, extended version.
1981	*
1982	* @returns VBox status code.
1983	* @param uMsr The MSR to modify.
1984	* @param idCpu The CPU to modify it on, NIL_RTCPUID if it
1985	* doesn't matter which CPU.
1986	* @param fAndMask The bits to keep in the current MSR value.
1987	* @param fOrMask The bits to set before writing.
1988	* @param fFaster If set to @c true some cache/tlb invalidation is
1989	* skipped, otherwise behave like
1990	* SUPR3MsrProberModify.
1991	* @param pResult The result buffer.
1992	*/
1993	SUPR3DECL(int) SUPR3MsrProberModifyEx(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask, bool fFaster,
1994	PSUPMSRPROBERMODIFYRESULT pResult);
1995
1996	/**
1997	* Resume built-in keyboard on MacBook Air and Pro hosts.
1998	*
1999	* @returns VBox status code.
2000	*/
2001	SUPR3DECL(int) SUPR3ResumeSuspendedKeyboards(void);
2002
2003	/**
2004	* Measure the TSC-delta for the specified CPU.
2005	*
2006	* @returns VBox status code.
2007	* @param idCpu The CPU to measure the TSC-delta for.
2008	* @param fAsync Whether the measurement is asynchronous, returns
2009	* immediately after signalling a measurement
2010	* request.
2011	* @param fForce Whether to perform a measurement even if the
2012	* specified CPU has a (possibly) valid TSC delta.
2013	* @param cRetries Number of times to retry failed delta
2014	* measurements.
2015	* @param cMsWaitRetry Number of milliseconds to wait between retries.
2016	*/
2017	SUPR3DECL(int) SUPR3TscDeltaMeasure(RTCPUID idCpu, bool fAsync, bool fForce, uint8_t cRetries, uint8_t cMsWaitRetry);
2018
2019	/**
2020	* Reads the delta-adjust TSC value.
2021	*
2022	* @returns VBox status code.
2023	* @param puTsc Where to store the read TSC value.
2024	* @param pidApic Where to store the APIC ID of the CPU where the TSC
2025	* was read (optional, can be NULL).
2026	*/
2027	SUPR3DECL(int) SUPR3ReadTsc(uint64_t puTsc, uint16_t pidApic);
2028
2029	/**
2030	* Modifies the GIP flags.
2031	*
2032	* @returns VBox status code.
2033	* @param fOrMask The OR mask of the GIP flags, see SUPGIP_FLAGS_XXX.
2034	* @param fAndMask The AND mask of the GIP flags, see SUPGIP_FLAGS_XXX.
2035	*/
2036	SUPR3DECL(int) SUPR3GipSetFlags(uint32_t fOrMask, uint32_t fAndMask);
2037
2038	/**
2039	* Return processor microcode revision, if applicable.
2040	*
2041	* @returns VINF_SUCCESS if supported, error code indicating why if not.
2042	* @param puMicrocodeRev Pointer to microcode revision dword (out).
2043	*/
2044	SUPR3DECL(int) SUPR3QueryMicrocodeRev(uint32_t *puMicrocodeRev);
2045
2046	/**
2047	* Gets hardware-virtualization MSRs of the CPU, if available.
2048	*
2049	* @returns VINF_SUCCESS if available, error code indicating why if not.
2050	* @param pHwvirtMsrs Where to store the hardware-virtualization MSRs.
2051	* @param fForceRequery Whether to force complete re-querying of MSRs (rather
2052	* than fetching cached values when available).
2053	*/
2054	SUPR3DECL(int) SUPR3GetHwvirtMsrs(PSUPHWVIRTMSRS pHwvirtMsrs, bool fForceRequery);
2055
2056	/** @} */
2057	#endif /* IN_RING3 */
2058
2059
2060	/** @name User mode module flags (SUPR3TracerRegisterModule & SUP_IOCTL_TRACER_UMOD_REG).
2061	* @{ */
2062	/** Executable image. */
2063	#define SUP_TRACER_UMOD_FLAGS_EXE UINT32_C(1)
2064	/** Shared library (DLL, DYLIB, SO, etc). */
2065	#define SUP_TRACER_UMOD_FLAGS_SHARED UINT32_C(2)
2066	/** Image type mask. */
2067	#define SUP_TRACER_UMOD_FLAGS_TYPE_MASK UINT32_C(3)
2068	/** @} */
2069
2070
2071	#ifdef IN_RING0
2072	/** @defgroup grp_sup_r0 SUP Host Context Ring-0 API
2073	* @{
2074	*/
2075
2076	/**
2077	* Security objectype.
2078	*/
2079	typedef enum SUPDRVOBJTYPE
2080	{
2081	/** The usual invalid object. */
2082	SUPDRVOBJTYPE_INVALID = 0,
2083	/** A Virtual Machine instance. */
2084	SUPDRVOBJTYPE_VM,
2085	/** Internal network. */
2086	SUPDRVOBJTYPE_INTERNAL_NETWORK,
2087	/** Internal network interface. */
2088	SUPDRVOBJTYPE_INTERNAL_NETWORK_INTERFACE,
2089	/** Single release event semaphore. */
2090	SUPDRVOBJTYPE_SEM_EVENT,
2091	/** Multiple release event semaphore. */
2092	SUPDRVOBJTYPE_SEM_EVENT_MULTI,
2093	/** Raw PCI device. */
2094	SUPDRVOBJTYPE_RAW_PCI_DEVICE,
2095	/** The first invalid object type in this end. */
2096	SUPDRVOBJTYPE_END,
2097	/** The usual 32-bit type size hack. */
2098	SUPDRVOBJTYPE_32_BIT_HACK = 0x7ffffff
2099	} SUPDRVOBJTYPE;
2100
2101	/**
2102	* Object destructor callback.
2103	* This is called for reference counted objectes when the count reaches 0.
2104	*
2105	* @param pvObj The object pointer.
2106	* @param pvUser1 The first user argument.
2107	* @param pvUser2 The second user argument.
2108	*/
2109	typedef DECLCALLBACKTYPE(void, FNSUPDRVDESTRUCTOR,(void pvObj, void pvUser1, void *pvUser2));
2110	/** Pointer to a FNSUPDRVDESTRUCTOR(). */
2111	typedef FNSUPDRVDESTRUCTOR *PFNSUPDRVDESTRUCTOR;
2112
2113	/**
2114	* Service request callback function.
2115	*
2116	* @returns VBox status code.
2117	* @param pSession The caller's session.
2118	* @param uOperation The operation identifier.
2119	* @param u64Arg 64-bit integer argument.
2120	* @param pReqHdr The request header. Input / Output. Optional.
2121	*/
2122	typedef DECLCALLBACKTYPE(int, FNSUPR0SERVICEREQHANDLER,(PSUPDRVSESSION pSession, uint32_t uOperation,
2123	uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr));
2124	/** Pointer to a FNR0SERVICEREQHANDLER(). */
2125	typedef R0PTRTYPE(FNSUPR0SERVICEREQHANDLER *) PFNSUPR0SERVICEREQHANDLER;
2126
2127	/**
2128	* Symbol entry for a wrapped module (SUPLDRWRAPPEDMODULE).
2129	*/
2130	typedef struct SUPLDRWRAPMODSYMBOL
2131	{
2132	/** The symbol namel. */
2133	const char *pszSymbol;
2134	/** The symbol address/value. */
2135	PFNRT pfnValue;
2136	} SUPLDRWRAPMODSYMBOL;
2137	/** Pointer to a symbol entry for a wrapped module. */
2138	typedef SUPLDRWRAPMODSYMBOL const *PCSUPLDRWRAPMODSYMBOL;
2139
2140	/**
2141	* Registration structure for SUPR0LdrRegisterWrapperModule.
2142	*
2143	* This is used to register a .r0 module when loaded manually as a native kernel
2144	* module/extension/driver/whatever.
2145	*/
2146	typedef struct SUPLDRWRAPPEDMODULE
2147	{
2148	/** Magic value (SUPLDRWRAPPEDMODULE_MAGIC). */
2149	uint32_t uMagic;
2150	/** The structure version. */
2151	uint16_t uVersion;
2152	/** SUPLDRWRAPPEDMODULE_F_XXX. */
2153	uint16_t fFlags;
2154
2155	/** As close as possible to the start of the image. */
2156	void *pvImageStart;
2157	/** As close as possible to the end of the image. */
2158	void *pvImageEnd;
2159
2160	/** @name Standar entry points
2161	* @{ */
2162	/** Pointer to the module initialization function (optional). */
2163	DECLCALLBACKMEMBER(int, pfnModuleInit,(void *hMod));
2164	/** Pointer to the module termination function (optional). */
2165	DECLCALLBACKMEMBER(void, pfnModuleTerm,(void *hMod));
2166	/** The VMMR0EntryFast entry point for VMMR0. */
2167	PFNRT pfnVMMR0EntryFast;
2168	/** The VMMR0EntryEx entry point for VMMR0. */
2169	PFNRT pfnVMMR0EntryEx;
2170	/** The service request handler entry point. */
2171	PFNSUPR0SERVICEREQHANDLER pfnServiceReqHandler;
2172	/** @} */
2173
2174	/** The symbol table. */
2175	PCSUPLDRWRAPMODSYMBOL paSymbols;
2176	/** Number of symbols. */
2177	uint32_t cSymbols;
2178
2179	/** The normal VBox module name. */
2180	char szName[32];
2181	/** Repeating the magic value here (SUPLDRWRAPPEDMODULE_MAGIC). */
2182	uint32_t uEndMagic;
2183	} SUPLDRWRAPPEDMODULE;
2184	/** Pointer to the wrapped module registration structure. */
2185	typedef SUPLDRWRAPPEDMODULE const *PCSUPLDRWRAPPEDMODULE;
2186
2187	/** Magic value for the wrapped module structure (Doris lessing). */
2188	#define SUPLDRWRAPPEDMODULE_MAGIC UINT32_C(0x19191117)
2189	/** Current SUPLDRWRAPPEDMODULE structure version. */
2190	#define SUPLDRWRAPPEDMODULE_VERSION UINT16_C(0x0001)
2191
2192	/** Set if this is the VMMR0 module. */
2193	#define SUPLDRWRAPPEDMODULE_F_VMMR0 UINT16_C(0x0001)
2194
2195
2196	SUPR0DECL(void ) SUPR0ObjRegister(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void pvUser1, void *pvUser2);
2197	SUPR0DECL(int) SUPR0ObjAddRef(void *pvObj, PSUPDRVSESSION pSession);
2198	SUPR0DECL(int) SUPR0ObjAddRefEx(void *pvObj, PSUPDRVSESSION pSession, bool fNoBlocking);
2199	SUPR0DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession);
2200	SUPR0DECL(int) SUPR0ObjVerifyAccess(void pvObj, PSUPDRVSESSION pSession, const char pszObjName);
2201
2202	SUPR0DECL(PVM) SUPR0GetSessionVM(PSUPDRVSESSION pSession);
2203	SUPR0DECL(PGVM) SUPR0GetSessionGVM(PSUPDRVSESSION pSession);
2204	SUPR0DECL(int) SUPR0SetSessionVM(PSUPDRVSESSION pSession, PGVM pGVM, PVM pVM);
2205	SUPR0DECL(RTUID) SUPR0GetSessionUid(PSUPDRVSESSION pSession);
2206
2207	SUPR0DECL(int) SUPR0LockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages);
2208	SUPR0DECL(int) SUPR0UnlockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3);
2209	SUPR0DECL(int) SUPR0ContAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS pHCPhys);
2210	SUPR0DECL(int) SUPR0ContFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
2211	SUPR0DECL(int) SUPR0LowAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS paPages);
2212	SUPR0DECL(int) SUPR0LowFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
2213	SUPR0DECL(int) SUPR0MemAlloc(PSUPDRVSESSION pSession, uint32_t cb, PRTR0PTR ppvR0, PRTR3PTR ppvR3);
2214	SUPR0DECL(int) SUPR0MemGetPhys(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, PSUPPAGE paPages);
2215	SUPR0DECL(int) SUPR0MemFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
2216	SUPR0DECL(int) SUPR0PageAllocEx(PSUPDRVSESSION pSession, uint32_t cPages, uint32_t fFlags, PRTR3PTR ppvR3, PRTR0PTR ppvR0, PRTHCPHYS paPages);
2217	SUPR0DECL(int) SUPR0PageMapKernel(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t offSub, uint32_t cbSub, uint32_t fFlags, PRTR0PTR ppvR0);
2218	SUPR0DECL(int) SUPR0PageProtect(PSUPDRVSESSION pSession, RTR3PTR pvR3, RTR0PTR pvR0, uint32_t offSub, uint32_t cbSub, uint32_t fProt);
2219	SUPR0DECL(int) SUPR0PageFree(PSUPDRVSESSION pSession, RTR3PTR pvR3);
2220	SUPR0DECL(int) SUPR0GipMap(PSUPDRVSESSION pSession, PRTR3PTR ppGipR3, PRTHCPHYS pHCPhysGip);
2221	SUPR0DECL(int) SUPR0LdrLock(PSUPDRVSESSION pSession);
2222	SUPR0DECL(int) SUPR0LdrUnlock(PSUPDRVSESSION pSession);
2223	SUPR0DECL(bool) SUPR0LdrIsLockOwnerByMod(void *hMod, bool fWantToHear);
2224	SUPR0DECL(int) SUPR0LdrModByName(PSUPDRVSESSION pSession, const char pszName, void *phMod);
2225	SUPR0DECL(int) SUPR0LdrModRetain(PSUPDRVSESSION pSession, void *hMod);
2226	SUPR0DECL(int) SUPR0LdrModRelease(PSUPDRVSESSION pSession, void *hMod);
2227	#ifdef RT_OS_LINUX
2228	SUPR0DECL(int) SUPDrvLinuxLdrRegisterWrappedModule(PCSUPLDRWRAPPEDMODULE pWrappedModInfo, const char pszLnxModName, void *phMod);
2229	SUPR0DECL(int) SUPDrvLinuxLdrDeregisterWrappedModule(PCSUPLDRWRAPPEDMODULE pWrappedModInfo, void **phMod);
2230	#endif
2231	SUPR0DECL(int) SUPR0GetVTSupport(uint32_t *pfCaps);
2232	SUPR0DECL(int) SUPR0GetHwvirtMsrs(PSUPHWVIRTMSRS pMsrs, uint32_t fCaps, bool fForce);
2233	SUPR0DECL(int) SUPR0GetSvmUsability(bool fInitSvm);
2234	SUPR0DECL(int) SUPR0GetVmxUsability(bool *pfIsSmxModeAmbiguous);
2235	SUPR0DECL(int) SUPR0GetCurrentGdtRw(RTHCUINTPTR *pGdtRw);
2236	SUPR0DECL(int) SUPR0QueryVTCaps(PSUPDRVSESSION pSession, uint32_t *pfCaps);
2237	SUPR0DECL(int) SUPR0GipUnmap(PSUPDRVSESSION pSession);
2238	SUPR0DECL(int) SUPR0QueryUcodeRev(PSUPDRVSESSION pSession, uint32_t *puMicrocodeRev);
2239	SUPR0DECL(SUPPAGINGMODE) SUPR0GetPagingMode(void);
2240	SUPR0DECL(RTCCUINTREG) SUPR0ChangeCR4(RTCCUINTREG fOrMask, RTCCUINTREG fAndMask);
2241	SUPR0DECL(int) SUPR0EnableVTx(bool fEnable);
2242	SUPR0DECL(bool) SUPR0SuspendVTxOnCpu(void);
2243	SUPR0DECL(void) SUPR0ResumeVTxOnCpu(bool fSuspended);
2244	#define SUP_TSCDELTA_MEASURE_F_FORCE RT_BIT_32(0)
2245	#define SUP_TSCDELTA_MEASURE_F_ASYNC RT_BIT_32(1)
2246	#define SUP_TSCDELTA_MEASURE_F_VALID_MASK UINT32_C(0x00000003)
2247	SUPR0DECL(int) SUPR0TscDeltaMeasureBySetIndex(PSUPDRVSESSION pSession, uint32_t iCpuSet, uint32_t fFlags,
2248	RTMSINTERVAL cMsWaitRetry, RTMSINTERVAL cMsWaitThread, uint32_t cTries);
2249
2250	SUPR0DECL(void) SUPR0BadContext(PSUPDRVSESSION pSession, const char pszFile, uint32_t uLine, const char pszExpr);
2251
2252	#if defined(RT_OS_LINUX) \|\| defined(RT_OS_SOLARIS) \|\| defined(RT_OS_FREEBSD)
2253	/**
2254	* Translates a physical address to a virtual mapping (valid up to end of page).
2255	* @returns VBox status code.
2256	* @param HCPhys The physical address, must be page aligned.
2257	* @param ppv Where to store the mapping address on success.
2258	*/
2259	SUPR0DECL(int) SUPR0HCPhysToVirt(RTHCPHYS HCPhys, void **ppv);
2260	#endif
2261
2262	/** Context structure returned by SUPR0IoCtlSetup for use with
2263	* SUPR0IoCtlPerform and cleaned up by SUPR0IoCtlCleanup. */
2264	typedef struct SUPR0IOCTLCTX *PSUPR0IOCTLCTX;
2265
2266	/**
2267	* Sets up a I/O control context for the given handle.
2268	*
2269	* @returns VBox status code.
2270	* @param pSession The support driver session.
2271	* @param hHandle The handle.
2272	* @param fFlags Flag, MBZ.
2273	* @param ppCtx Where the context is returned.
2274	*/
2275	SUPR0DECL(int) SUPR0IoCtlSetupForHandle(PSUPDRVSESSION pSession, intptr_t hHandle, uint32_t fFlags, PSUPR0IOCTLCTX *ppCtx);
2276
2277	/**
2278	* Cleans up the I/O control context when done.
2279	*
2280	* This won't close the handle passed to SUPR0IoCtlSetupForHandle.
2281	*
2282	* @returns VBox status code.
2283	* @param pCtx The I/O control context to cleanup.
2284	*/
2285	SUPR0DECL(int) SUPR0IoCtlCleanup(PSUPR0IOCTLCTX pCtx);
2286
2287	/**
2288	* Performs an I/O control operation.
2289	*
2290	* @returns VBox status code.
2291	* @param pCtx The I/O control context returned by
2292	* SUPR0IoCtlSetupForHandle.
2293	* @param uFunction The I/O control function to perform.
2294	* @param pvInput Pointer to input buffer (ring-0).
2295	* @param pvInputUser Ring-3 pointer corresponding to @a pvInput.
2296	* @param cbInput The amount of input. If zero, both input pointers
2297	* are expected to be NULL.
2298	* @param pvOutput Pointer to output buffer (ring-0).
2299	* @param pvOutputUser Ring-3 pointer corresponding to @a pvInput.
2300	* @param cbOutput The amount of input. If zero, both input pointers
2301	* are expected to be NULL.
2302	* @param piNativeRc Where to return the native return code. When
2303	* specified the VBox status code will typically be
2304	* VINF_SUCCESS and the caller have to consult this for
2305	* the actual result of the operation. (This saves
2306	* pointless status code conversion.) Optional.
2307	*
2308	* @note On unix systems where there is only one set of buffers possible,
2309	* pass the same pointers as input and output.
2310	*/
2311	SUPR0DECL(int) SUPR0IoCtlPerform(PSUPR0IOCTLCTX pCtx, uintptr_t uFunction,
2312	void *pvInput, RTR3PTR pvInputUser, size_t cbInput,
2313	void *pvOutput, RTR3PTR pvOutputUser, size_t cbOutput,
2314	int32_t *piNativeRc);
2315
2316	/**
2317	* Writes to the debugger and/or kernel log, va_list version.
2318	*
2319	* The length of the formatted message is somewhat limited, so keep things short
2320	* and to the point.
2321	*
2322	* @returns Number of bytes written, mabye.
2323	* @param pszFormat IPRT format string.
2324	* @param va Arguments referenced by the format string.
2325	*/
2326	SUPR0DECL(int) SUPR0PrintfV(const char *pszFormat, va_list va) RT_IPRT_FORMAT_ATTR(1, 0);
2327
2328	/**
2329	* Writes to the debugger and/or kernel log.
2330	*
2331	* The length of the formatted message is somewhat limited, so keep things short
2332	* and to the point.
2333	*
2334	* @returns Number of bytes written, mabye.
2335	* @param pszFormat IPRT format string.
2336	* @param ... Arguments referenced by the format string.
2337	*/
2338	#if defined(__GNUC__) && defined(__inline__)
2339	/* Define it as static for GCC as it cannot inline functions using va_start() anyway,
2340	and linux redefines __inline__ to always inlining forcing gcc to issue an error. */
2341	static int __attribute__((__unused__))
2342	#else
2343	DECLINLINE(int)
2344	#endif
2345	RT_IPRT_FORMAT_ATTR(1, 2) SUPR0Printf(const char *pszFormat, ...)
2346	{
2347	va_list va;
2348	va_start(va, pszFormat);
2349	SUPR0PrintfV(pszFormat, va);
2350	va_end(va);
2351	return 0;
2352	}
2353
2354	/* HACK ALERT! See above. */
2355	#ifdef SUPR0PRINTF_UNDO_INLINE_HACK
2356	# define __inline__ inline
2357	#endif
2358
2359	#ifdef IN_RING0
2360	/** Debug printf macro. This also exist in SUPLib, see SUPLibInternal.h. */
2361	# ifdef DEBUG
2362	# define SUP_DPRINTF(a) SUPR0Printf a
2363	# else
2364	# define SUP_DPRINTF(a) do { } while (0)
2365	# endif
2366	#endif
2367
2368	/**
2369	* Returns configuration flags of the host kernel.
2370	*
2371	* @returns Combination of SUPKERNELFEATURES_XXX flags.
2372	*/
2373	SUPR0DECL(uint32_t) SUPR0GetKernelFeatures(void);
2374
2375	/**
2376	* Notification from R0 VMM prior to loading the guest-FPU register state.
2377	*
2378	* @returns Whether the host-FPU register state has been saved by the host kernel.
2379	* @param fCtxHook Whether thread-context hooks are enabled.
2380	*
2381	* @remarks Called with preemption disabled.
2382	*/
2383	SUPR0DECL(bool) SUPR0FpuBegin(bool fCtxHook);
2384
2385	/**
2386	* Notification from R0 VMM after saving the guest-FPU register state (and
2387	* potentially restoring the host-FPU register state) in ring-0.
2388	*
2389	* @param fCtxHook Whether thread-context hooks are enabled.
2390	*
2391	* @remarks Called with preemption disabled.
2392	*/
2393	SUPR0DECL(void) SUPR0FpuEnd(bool fCtxHook);
2394
2395	/** @copydoc RTLogDefaultInstanceEx
2396	* @remarks To allow overriding RTLogDefaultInstanceEx locally. */
2397	SUPR0DECL(struct RTLOGGER *) SUPR0DefaultLogInstanceEx(uint32_t fFlagsAndGroup);
2398	/** @copydoc RTLogGetDefaultInstanceEx
2399	* @remarks To allow overriding RTLogGetDefaultInstanceEx locally. */
2400	SUPR0DECL(struct RTLOGGER *) SUPR0GetDefaultLogInstanceEx(uint32_t fFlagsAndGroup);
2401	/** @copydoc RTLogRelGetDefaultInstanceEx
2402	* @remarks To allow overriding RTLogRelGetDefaultInstanceEx locally. */
2403	SUPR0DECL(struct RTLOGGER *) SUPR0GetDefaultLogRelInstanceEx(uint32_t fFlagsAndGroup);
2404
2405
2406	/** @name Absolute symbols
2407	* Take the address of these, don't try call them.
2408	* @{ */
2409	SUPR0DECL(void) SUPR0AbsIs64bit(void);
2410	SUPR0DECL(void) SUPR0Abs64bitKernelCS(void);
2411	SUPR0DECL(void) SUPR0Abs64bitKernelSS(void);
2412	SUPR0DECL(void) SUPR0Abs64bitKernelDS(void);
2413	SUPR0DECL(void) SUPR0AbsKernelCS(void);
2414	SUPR0DECL(void) SUPR0AbsKernelSS(void);
2415	SUPR0DECL(void) SUPR0AbsKernelDS(void);
2416	SUPR0DECL(void) SUPR0AbsKernelES(void);
2417	SUPR0DECL(void) SUPR0AbsKernelFS(void);
2418	SUPR0DECL(void) SUPR0AbsKernelGS(void);
2419	/** @} */
2420
2421	/**
2422	* Support driver component factory.
2423	*
2424	* Component factories are registered by drivers that provides services
2425	* such as the host network interface filtering and access to the host
2426	* TCP/IP stack.
2427	*
2428	* @remark Module dependencies and making sure that a component doesn't
2429	* get unloaded while in use, is the sole responsibility of the
2430	* driver/kext/whatever implementing the component.
2431	*/
2432	typedef struct SUPDRVFACTORY
2433	{
2434	/** The (unique) name of the component factory. */
2435	char szName[56];
2436	/**
2437	* Queries a factory interface.
2438	*
2439	* The factory interface is specific to each component and will be be
2440	* found in the header(s) for the component alongside its UUID.
2441	*
2442	* @returns Pointer to the factory interfaces on success, NULL on failure.
2443	*
2444	* @param pSupDrvFactory Pointer to this structure.
2445	* @param pSession The SUPDRV session making the query.
2446	* @param pszInterfaceUuid The UUID of the factory interface.
2447	*/
2448	DECLR0CALLBACKMEMBER(void , pfnQueryFactoryInterface,(struct SUPDRVFACTORY const pSupDrvFactory, PSUPDRVSESSION pSession, const char *pszInterfaceUuid));
2449	} SUPDRVFACTORY;
2450	/** Pointer to a support driver factory. */
2451	typedef SUPDRVFACTORY *PSUPDRVFACTORY;
2452	/** Pointer to a const support driver factory. */
2453	typedef SUPDRVFACTORY const *PCSUPDRVFACTORY;
2454
2455	SUPR0DECL(int) SUPR0ComponentRegisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
2456	SUPR0DECL(int) SUPR0ComponentDeregisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
2457	SUPR0DECL(int) SUPR0ComponentQueryFactory(PSUPDRVSESSION pSession, const char pszName, const char pszInterfaceUuid, void **ppvFactoryIf);
2458
2459
2460	/** @name Tracing
2461	* @{ */
2462
2463	/**
2464	* Tracer data associated with a provider.
2465	*/
2466	typedef union SUPDRVTRACERDATA
2467	{
2468	/** Generic */
2469	uint64_t au64[2];
2470
2471	/** DTrace data. */
2472	struct
2473	{
2474	/** Provider ID. */
2475	uintptr_t idProvider;
2476	/** The number of trace points provided. */
2477	uint32_t volatile cProvidedProbes;
2478	/** Whether we've invalidated this bugger. */
2479	bool fZombie;
2480	} DTrace;
2481	} SUPDRVTRACERDATA;
2482	/** Pointer to the tracer data associated with a provider. */
2483	typedef SUPDRVTRACERDATA *PSUPDRVTRACERDATA;
2484
2485	/**
2486	* Probe location info for ring-0.
2487	*
2488	* Since we cannot trust user tracepoint modules, we need to duplicate the probe
2489	* ID and enabled flag in ring-0.
2490	*/
2491	typedef struct SUPDRVPROBELOC
2492	{
2493	/** The probe ID. */
2494	uint32_t idProbe;
2495	/** Whether it's enabled or not. */
2496	bool fEnabled;
2497	} SUPDRVPROBELOC;
2498	/** Pointer to a ring-0 probe location record. */
2499	typedef SUPDRVPROBELOC *PSUPDRVPROBELOC;
2500
2501	/**
2502	* Probe info for ring-0.
2503	*
2504	* Since we cannot trust user tracepoint modules, we need to duplicate the
2505	* probe enable count.
2506	*/
2507	typedef struct SUPDRVPROBEINFO
2508	{
2509	/** The number of times this probe has been enabled. */
2510	uint32_t volatile cEnabled;
2511	} SUPDRVPROBEINFO;
2512	/** Pointer to a ring-0 probe info record. */
2513	typedef SUPDRVPROBEINFO *PSUPDRVPROBEINFO;
2514
2515	/**
2516	* Support driver tracepoint provider core.
2517	*/
2518	typedef struct SUPDRVVDTPROVIDERCORE
2519	{
2520	/** The tracer data member. */
2521	SUPDRVTRACERDATA TracerData;
2522	/** Pointer to the provider name (a copy that's always available). */
2523	const char *pszName;
2524	/** Pointer to the module name (a copy that's always available). */
2525	const char *pszModName;
2526
2527	/** The provider descriptor. */
2528	struct VTGDESCPROVIDER *pDesc;
2529	/** The VTG header. */
2530	struct VTGOBJHDR *pHdr;
2531
2532	/** The size of the entries in the pvProbeLocsEn table. */
2533	uint8_t cbProbeLocsEn;
2534	/** The actual module bit count (corresponds to cbProbeLocsEn). */
2535	uint8_t cBits;
2536	/** Set if this is a Umod, otherwise clear. */
2537	bool fUmod;
2538	/** Explicit alignment padding (paranoia). */
2539	uint8_t abAlignment[ARCH_BITS == 32 ? 1 : 5];
2540
2541	/** The probe locations used for descriptive purposes. */
2542	struct VTGPROBELOC const *paProbeLocsRO;
2543	/** Pointer to the probe location array where the enable flag needs
2544	* flipping. For kernel providers, this will always be SUPDRVPROBELOC,
2545	* while user providers can either be 32-bit or 64-bit. Use
2546	* cbProbeLocsEn to calculate the address of an entry. */
2547	void *pvProbeLocsEn;
2548	/** Pointer to the probe array containing the enabled counts. */
2549	uint32_t *pacProbeEnabled;
2550
2551	/** The ring-0 probe location info for user tracepoint modules.
2552	* This is NULL if fUmod is false. */
2553	PSUPDRVPROBELOC paR0ProbeLocs;
2554	/** The ring-0 probe info for user tracepoint modules.
2555	* This is NULL if fUmod is false. */
2556	PSUPDRVPROBEINFO paR0Probes;
2557
2558	} SUPDRVVDTPROVIDERCORE;
2559	/** Pointer to a tracepoint provider core structure. */
2560	typedef SUPDRVVDTPROVIDERCORE *PSUPDRVVDTPROVIDERCORE;
2561
2562	/** Pointer to a tracer registration record. */
2563	typedef struct SUPDRVTRACERREG const *PCSUPDRVTRACERREG;
2564	/**
2565	* Support driver tracer registration record.
2566	*/
2567	typedef struct SUPDRVTRACERREG
2568	{
2569	/** Magic value (SUPDRVTRACERREG_MAGIC). */
2570	uint32_t u32Magic;
2571	/** Version (SUPDRVTRACERREG_VERSION). */
2572	uint32_t u32Version;
2573
2574	/**
2575	* Fire off a kernel probe.
2576	*
2577	* @param pVtgProbeLoc The probe location record.
2578	* @param uArg0 The first raw probe argument.
2579	* @param uArg1 The second raw probe argument.
2580	* @param uArg2 The third raw probe argument.
2581	* @param uArg3 The fourth raw probe argument.
2582	* @param uArg4 The fifth raw probe argument.
2583	*
2584	* @remarks SUPR0TracerFireProbe will do a tail jump thru this member, so
2585	* no extra stack frames will be added.
2586	* @remarks This does not take a 'this' pointer argument because it doesn't map
2587	* well onto VTG or DTrace.
2588	*
2589	*/
2590	DECLR0CALLBACKMEMBER(void, pfnProbeFireKernel, (struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
2591	uintptr_t uArg3, uintptr_t uArg4));
2592
2593	/**
2594	* Fire off a user-mode probe.
2595	*
2596	* @param pThis Pointer to the registration record.
2597	*
2598	* @param pVtgProbeLoc The probe location record.
2599	* @param pSession The user session.
2600	* @param pCtx The usermode context info.
2601	* @param pVtgHdr The VTG header (read-only).
2602	* @param pProbeLocRO The read-only probe location record .
2603	*/
2604	DECLR0CALLBACKMEMBER(void, pfnProbeFireUser, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, PCSUPDRVTRACERUSRCTX pCtx,
2605	struct VTGOBJHDR const pVtgHdr, struct VTGPROBELOC const pProbeLocRO));
2606
2607	/**
2608	* Opens up the tracer.
2609	*
2610	* @returns VBox status code.
2611	* @param pThis Pointer to the registration record.
2612	* @param pSession The session doing the opening.
2613	* @param uCookie A cookie (magic) unique to the tracer, so it can
2614	* fend off incompatible clients.
2615	* @param uArg Tracer specific argument.
2616	* @param puSessionData Pointer to the session data variable. This must be
2617	* set to a non-zero value on success.
2618	*/
2619	DECLR0CALLBACKMEMBER(int, pfnTracerOpen, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uint32_t uCookie, uintptr_t uArg,
2620	uintptr_t *puSessionData));
2621
2622	/**
2623	* I/O control style tracer communication method.
2624	*
2625	*
2626	* @returns VBox status code.
2627	* @param pThis Pointer to the registration record.
2628	* @param pSession The session.
2629	* @param uSessionData The session data value.
2630	* @param uCmd The tracer specific command.
2631	* @param uArg The tracer command specific argument.
2632	* @param piRetVal The tracer specific return value.
2633	*/
2634	DECLR0CALLBACKMEMBER(int, pfnTracerIoCtl, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uintptr_t uSessionData,
2635	uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal));
2636
2637	/**
2638	* Cleans up data the tracer has associated with a session.
2639	*
2640	* @param pThis Pointer to the registration record.
2641	* @param pSession The session handle.
2642	* @param uSessionData The data assoicated with the session.
2643	*/
2644	DECLR0CALLBACKMEMBER(void, pfnTracerClose, (PCSUPDRVTRACERREG pThis, PSUPDRVSESSION pSession, uintptr_t uSessionData));
2645
2646	/**
2647	* Registers a provider.
2648	*
2649	* @returns VBox status code.
2650	* @param pThis Pointer to the registration record.
2651	* @param pCore The provider core data.
2652	*
2653	* @todo Kernel vs. Userland providers.
2654	*/
2655	DECLR0CALLBACKMEMBER(int, pfnProviderRegister, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2656
2657	/**
2658	* Attempts to deregisters a provider.
2659	*
2660	* @returns VINF_SUCCESS or VERR_TRY_AGAIN. If the latter, the provider
2661	* should be made as harmless as possible before returning as the
2662	* VTG object and associated code will be unloaded upon return.
2663	*
2664	* @param pThis Pointer to the registration record.
2665	* @param pCore The provider core data.
2666	*/
2667	DECLR0CALLBACKMEMBER(int, pfnProviderDeregister, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2668
2669	/**
2670	* Make another attempt at unregister a busy provider.
2671	*
2672	* @returns VINF_SUCCESS or VERR_TRY_AGAIN.
2673	* @param pThis Pointer to the registration record.
2674	* @param pCore The provider core data.
2675	*/
2676	DECLR0CALLBACKMEMBER(int, pfnProviderDeregisterZombie, (PCSUPDRVTRACERREG pThis, PSUPDRVVDTPROVIDERCORE pCore));
2677
2678	/** End marker (SUPDRVTRACERREG_MAGIC). */
2679	uintptr_t uEndMagic;
2680	} SUPDRVTRACERREG;
2681
2682	/** Tracer magic (Kenny Garrett). */
2683	#define SUPDRVTRACERREG_MAGIC UINT32_C(0x19601009)
2684	/** Tracer registration structure version. */
2685	#define SUPDRVTRACERREG_VERSION RT_MAKE_U32(0, 1)
2686
2687	/** Pointer to a trace helper structure. */
2688	typedef struct SUPDRVTRACERHLP const *PCSUPDRVTRACERHLP;
2689	/**
2690	* Helper structure.
2691	*/
2692	typedef struct SUPDRVTRACERHLP
2693	{
2694	/** The structure version (SUPDRVTRACERHLP_VERSION). */
2695	uintptr_t uVersion;
2696
2697	/** @todo ... */
2698
2699	/** End marker (SUPDRVTRACERHLP_VERSION) */
2700	uintptr_t uEndVersion;
2701	} SUPDRVTRACERHLP;
2702	/** Tracer helper structure version. */
2703	#define SUPDRVTRACERHLP_VERSION RT_MAKE_U32(0, 1)
2704
2705	SUPR0DECL(int) SUPR0TracerRegisterImpl(void hMod, PSUPDRVSESSION pSession, PCSUPDRVTRACERREG pReg, PCSUPDRVTRACERHLP ppHlp);
2706	SUPR0DECL(int) SUPR0TracerDeregisterImpl(void *hMod, PSUPDRVSESSION pSession);
2707	SUPR0DECL(int) SUPR0TracerRegisterDrv(PSUPDRVSESSION pSession, struct VTGOBJHDR pVtgHdr, const char pszName);
2708	SUPR0DECL(void) SUPR0TracerDeregisterDrv(PSUPDRVSESSION pSession);
2709	SUPR0DECL(int) SUPR0TracerRegisterModule(void hMod, struct VTGOBJHDR pVtgHdr);
2710	SUPR0DECL(void) SUPR0TracerFireProbe(struct VTGPROBELOC *pVtgProbeLoc, uintptr_t uArg0, uintptr_t uArg1, uintptr_t uArg2,
2711	uintptr_t uArg3, uintptr_t uArg4);
2712	SUPR0DECL(void) SUPR0TracerUmodProbeFire(PSUPDRVSESSION pSession, PSUPDRVTRACERUSRCTX pCtx);
2713	/** @} */
2714
2715
2716	/** @defgroup grp_sup_r0_idc The IDC Interface
2717	* @{
2718	*/
2719
2720	/** The current SUPDRV IDC version.
2721	* This follows the usual high word / low word rules, i.e. high word is the
2722	* major number and it signifies incompatible interface changes. */
2723	#define SUPDRV_IDC_VERSION UINT32_C(0x00010000)
2724
2725	/**
2726	* Inter-Driver Communication Handle.
2727	*/
2728	typedef union SUPDRVIDCHANDLE
2729	{
2730	/** Padding for opaque usage.
2731	* Must be greater or equal in size than the private struct. */
2732	void *apvPadding[4];
2733	#ifdef SUPDRVIDCHANDLEPRIVATE_DECLARED
2734	/** The private view. */
2735	struct SUPDRVIDCHANDLEPRIVATE s;
2736	#endif
2737	} SUPDRVIDCHANDLE;
2738	/** Pointer to a handle. */
2739	typedef SUPDRVIDCHANDLE *PSUPDRVIDCHANDLE;
2740
2741	SUPR0DECL(int) SUPR0IdcOpen(PSUPDRVIDCHANDLE pHandle, uint32_t uReqVersion, uint32_t uMinVersion,
2742	uint32_t puSessionVersion, uint32_t puDriverVersion, uint32_t *puDriverRevision);
2743	SUPR0DECL(int) SUPR0IdcCall(PSUPDRVIDCHANDLE pHandle, uint32_t iReq, void *pvReq, uint32_t cbReq);
2744	SUPR0DECL(int) SUPR0IdcClose(PSUPDRVIDCHANDLE pHandle);
2745	SUPR0DECL(PSUPDRVSESSION) SUPR0IdcGetSession(PSUPDRVIDCHANDLE pHandle);
2746	SUPR0DECL(int) SUPR0IdcComponentRegisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory);
2747	SUPR0DECL(int) SUPR0IdcComponentDeregisterFactory(PSUPDRVIDCHANDLE pHandle, PCSUPDRVFACTORY pFactory);
2748
2749	/** @} */
2750
2751	/** @name Ring-0 module entry points.
2752	*
2753	* These can be exported by ring-0 modules SUP are told to load.
2754	*
2755	* @{ */
2756	DECLEXPORT(int) ModuleInit(void *hMod);
2757	DECLEXPORT(void) ModuleTerm(void *hMod);
2758	/** @} */
2759
2760
2761	/** @} */
2762	#endif
2763
2764
2765	/** @name Trust Anchors and Certificates
2766	* @{ */
2767
2768	/**
2769	* Trust anchor table entry (in generated Certificates.cpp).
2770	*/
2771	typedef struct SUPTAENTRY
2772	{
2773	/** Pointer to the raw bytes. */
2774	const unsigned char *pch;
2775	/** Number of bytes. */
2776	unsigned cb;
2777	} SUPTAENTRY;
2778	/** Pointer to a trust anchor table entry. */
2779	typedef SUPTAENTRY const *PCSUPTAENTRY;
2780
2781	/** Macro for simplifying generating the trust anchor tables. */
2782	#define SUPTAENTRY_GEN(a_abTA) { &a_abTA[0], sizeof(a_abTA) }
2783
2784	/** All certificates we know. */
2785	extern SUPTAENTRY const g_aSUPAllTAs[];
2786	/** Number of entries in g_aSUPAllTAs. */
2787	extern unsigned const g_cSUPAllTAs;
2788
2789	/** Software publisher certificate roots (Authenticode). */
2790	extern SUPTAENTRY const g_aSUPSpcRootTAs[];
2791	/** Number of entries in g_aSUPSpcRootTAs. */
2792	extern unsigned const g_cSUPSpcRootTAs;
2793
2794	/** Kernel root certificates used by Windows. */
2795	extern SUPTAENTRY const g_aSUPNtKernelRootTAs[];
2796	/** Number of entries in g_aSUPNtKernelRootTAs. */
2797	extern unsigned const g_cSUPNtKernelRootTAs;
2798
2799	/** Timestamp root certificates trusted by Windows. */
2800	extern SUPTAENTRY const g_aSUPTimestampTAs[];
2801	/** Number of entries in g_aSUPTimestampTAs. */
2802	extern unsigned const g_cSUPTimestampTAs;
2803
2804	/** Root certificates trusted by Apple code signing. */
2805	extern SUPTAENTRY const g_aSUPAppleRootTAs[];
2806	/** Number of entries in g_cSUPAppleRootTAs. */
2807	extern unsigned const g_cSUPAppleRootTAs;
2808
2809	/** TAs we trust (the build certificate, Oracle VirtualBox). */
2810	extern SUPTAENTRY const g_aSUPTrustedTAs[];
2811	/** Number of entries in g_aSUPTrustedTAs. */
2812	extern unsigned const g_cSUPTrustedTAs;
2813
2814	/** Supplemental certificates, like cross signing certificates. */
2815	extern SUPTAENTRY const g_aSUPSupplementalTAs[];
2816	/** Number of entries in g_aSUPTrustedTAs. */
2817	extern unsigned const g_cSUPSupplementalTAs;
2818
2819	/** The build certificate. */
2820	extern const unsigned char g_abSUPBuildCert[];
2821	/** The size of the build certificate. */
2822	extern const unsigned g_cbSUPBuildCert;
2823
2824	/** @} */
2825
2826
2827	/** @} */
2828
2829	RT_C_DECLS_END
2830
2831	#endif /* !VBOX_INCLUDED_sup_h */
2832

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source: vbox/trunk/include/VBox/sup.h@ 97964

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