SUPDrvIOC.h@ 35650

Last change on this file since 35650 was 34972, checked in by vboxsync, 14 years ago
SUPDrv: Had to grow SUPLDROPEN::u.In.szFilename from 196 to 260 chars or local mac builds might easily fail with a buffer overflow assertion when loading VBoxEhciR0.r0. (The path grows extra long on the mac because of the .../VirtualBox.app/Contents/MacOS/../Resources/VirtualBoxVM.app/Contents/MacOS/VirtualBoxVM hack.) This means a major support driver version bump and effecting pending cleanups in the semaphore interface.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 38.7 KB

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1	/* $Revision: 34972 $ */
2	/** @file
3	* VirtualBox Support Driver - IOCtl definitions.
4	*/
5
6	/*
7	* Copyright (C) 2006-2010 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* The contents of this file may alternatively be used under the terms
18	* of the Common Development and Distribution License Version 1.0
19	* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20	* VirtualBox OSE distribution, in which case the provisions of the
21	* CDDL are applicable instead of those of the GPL.
22	*
23	* You may elect to license modified versions of this file under the
24	* terms and conditions of either the GPL or the CDDL or both.
25	*/
26
27	#ifndef ___SUPDrvIOC_h___
28	#define ___SUPDrvIOC_h___
29
30	/*
31	* Basic types.
32	*/
33	#include <iprt/types.h>
34
35	/*
36	* IOCtl numbers.
37	* We're using the Win32 type of numbers here, thus the macros below.
38	* The SUP_IOCTL_FLAG macro is used to separate requests from 32-bit
39	* and 64-bit processes.
40	*/
41	#if defined(RT_ARCH_AMD64) \|\| defined(RT_ARCH_SPARC64)
42	# define SUP_IOCTL_FLAG 128
43	#elif defined(RT_ARCH_X86) \|\| defined(RT_ARCH_SPARC)
44	# define SUP_IOCTL_FLAG 0
45	#else
46	# error "dunno which arch this is!"
47	#endif
48
49	#ifdef RT_OS_WINDOWS
50	# ifndef CTL_CODE
51	# include <Windows.h>
52	# endif
53	/* Automatic buffering, size not encoded. */
54	# define SUP_CTL_CODE_SIZE(Function, Size) CTL_CODE(FILE_DEVICE_UNKNOWN, (Function) \| SUP_IOCTL_FLAG, METHOD_BUFFERED, FILE_WRITE_ACCESS)
55	# define SUP_CTL_CODE_BIG(Function) CTL_CODE(FILE_DEVICE_UNKNOWN, (Function) \| SUP_IOCTL_FLAG, METHOD_BUFFERED, FILE_WRITE_ACCESS)
56	# define SUP_CTL_CODE_FAST(Function) CTL_CODE(FILE_DEVICE_UNKNOWN, (Function) \| SUP_IOCTL_FLAG, METHOD_NEITHER, FILE_WRITE_ACCESS)
57	# define SUP_CTL_CODE_NO_SIZE(uIOCtl) (uIOCtl)
58
59	#elif defined(RT_OS_SOLARIS)
60	/* No automatic buffering, size limited to 255 bytes. */
61	# include <sys/ioccom.h>
62	# define SUP_CTL_CODE_SIZE(Function, Size) _IOWRN('V', (Function) \| SUP_IOCTL_FLAG, sizeof(SUPREQHDR))
63	# define SUP_CTL_CODE_BIG(Function) _IOWRN('V', (Function) \| SUP_IOCTL_FLAG, sizeof(SUPREQHDR))
64	# define SUP_CTL_CODE_FAST(Function) _IO( 'V', (Function) \| SUP_IOCTL_FLAG)
65	# define SUP_CTL_CODE_NO_SIZE(uIOCtl) (uIOCtl)
66
67	#elif defined(RT_OS_OS2)
68	/* No automatic buffering, size not encoded. */
69	# define SUP_CTL_CATEGORY 0xc0
70	# define SUP_CTL_CODE_SIZE(Function, Size) ((unsigned char)(Function))
71	# define SUP_CTL_CODE_BIG(Function) ((unsigned char)(Function))
72	# define SUP_CTL_CATEGORY_FAST 0xc1
73	# define SUP_CTL_CODE_FAST(Function) ((unsigned char)(Function))
74	# define SUP_CTL_CODE_NO_SIZE(uIOCtl) (uIOCtl)
75
76	#elif defined(RT_OS_LINUX)
77	/* No automatic buffering, size limited to 16KB. */
78	# include <linux/ioctl.h>
79	# define SUP_CTL_CODE_SIZE(Function, Size) _IOC(_IOC_READ \| _IOC_WRITE, 'V', (Function) \| SUP_IOCTL_FLAG, (Size))
80	# define SUP_CTL_CODE_BIG(Function) _IO('V', (Function) \| SUP_IOCTL_FLAG)
81	# define SUP_CTL_CODE_FAST(Function) _IO('V', (Function) \| SUP_IOCTL_FLAG)
82	# define SUP_CTL_CODE_NO_SIZE(uIOCtl) ((uIOCtl) & ~IOCSIZE_MASK)
83
84	#elif defined(RT_OS_L4)
85	/* Implemented in suplib, no worries. */
86	# define SUP_CTL_CODE_SIZE(Function, Size) (Function)
87	# define SUP_CTL_CODE_BIG(Function) (Function)
88	# define SUP_CTL_CODE_FAST(Function) (Function)
89	# define SUP_CTL_CODE_NO_SIZE(uIOCtl) (uIOCtl)
90
91	#else /* BSD Like */
92	/* Automatic buffering, size limited to 4KB on BSD and 8KB on Darwin - commands the limit, 4KB. /
93	# include <sys/ioccom.h>
94	# define SUP_CTL_CODE_SIZE(Function, Size) _IOC(IOC_INOUT, 'V', (Function) \| SUP_IOCTL_FLAG, (Size))
95	# define SUP_CTL_CODE_BIG(Function) _IO('V', (Function) \| SUP_IOCTL_FLAG)
96	# define SUP_CTL_CODE_FAST(Function) _IO('V', (Function) \| SUP_IOCTL_FLAG)
97	# define SUP_CTL_CODE_NO_SIZE(uIOCtl) ( (uIOCtl) & ~_IOC(0,0,0,IOCPARM_MASK) )
98	#endif
99
100	/** Fast path IOCtl: VMMR0_DO_RAW_RUN */
101	#define SUP_IOCTL_FAST_DO_RAW_RUN SUP_CTL_CODE_FAST(64)
102	/** Fast path IOCtl: VMMR0_DO_HWACC_RUN */
103	#define SUP_IOCTL_FAST_DO_HWACC_RUN SUP_CTL_CODE_FAST(65)
104	/** Just a NOP call for profiling the latency of a fast ioctl call to VMMR0. */
105	#define SUP_IOCTL_FAST_DO_NOP SUP_CTL_CODE_FAST(66)
106
107
108
109	/*******************************************************************************
110	* Structures and Typedefs *
111	*******************************************************************************/
112	#ifdef RT_ARCH_AMD64
113	# pragma pack(8) /* paranoia. */
114	#else
115	# pragma pack(4) /* paranoia. */
116	#endif
117
118
119	/**
120	* Common In/Out header.
121	*/
122	typedef struct SUPREQHDR
123	{
124	/** Cookie. */
125	uint32_t u32Cookie;
126	/** Session cookie. */
127	uint32_t u32SessionCookie;
128	/** The size of the input. */
129	uint32_t cbIn;
130	/** The size of the output. */
131	uint32_t cbOut;
132	/** Flags. See SUPREQHDR_FLAGS_* for details and values. */
133	uint32_t fFlags;
134	/** The VBox status code of the operation, out direction only. */
135	int32_t rc;
136	} SUPREQHDR;
137	/** Pointer to a IOC header. */
138	typedef SUPREQHDR *PSUPREQHDR;
139
140	/** @name SUPREQHDR::fFlags values
141	* @{ */
142	/** Masks out the magic value. */
143	#define SUPREQHDR_FLAGS_MAGIC_MASK UINT32_C(0xff0000ff)
144	/** The generic mask. */
145	#define SUPREQHDR_FLAGS_GEN_MASK UINT32_C(0x0000ff00)
146	/** The request specific mask. */
147	#define SUPREQHDR_FLAGS_REQ_MASK UINT32_C(0x00ff0000)
148
149	/** There is extra input that needs copying on some platforms. */
150	#define SUPREQHDR_FLAGS_EXTRA_IN UINT32_C(0x00000100)
151	/** There is extra output that needs copying on some platforms. */
152	#define SUPREQHDR_FLAGS_EXTRA_OUT UINT32_C(0x00000200)
153
154	/** The magic value. */
155	#define SUPREQHDR_FLAGS_MAGIC UINT32_C(0x42000042)
156	/** The default value. Use this when no special stuff is requested. */
157	#define SUPREQHDR_FLAGS_DEFAULT SUPREQHDR_FLAGS_MAGIC
158	/** @} */
159
160
161	/** @name SUP_IOCTL_COOKIE
162	* @{
163	*/
164	/** Negotiate cookie. */
165	#define SUP_IOCTL_COOKIE SUP_CTL_CODE_SIZE(1, SUP_IOCTL_COOKIE_SIZE)
166	/** The request size. */
167	#define SUP_IOCTL_COOKIE_SIZE sizeof(SUPCOOKIE)
168	/** The SUPREQHDR::cbIn value. */
169	#define SUP_IOCTL_COOKIE_SIZE_IN sizeof(SUPREQHDR) + RT_SIZEOFMEMB(SUPCOOKIE, u.In)
170	/** The SUPREQHDR::cbOut value. */
171	#define SUP_IOCTL_COOKIE_SIZE_OUT sizeof(SUPREQHDR) + RT_SIZEOFMEMB(SUPCOOKIE, u.Out)
172	/** SUPCOOKIE_IN magic word. */
173	#define SUPCOOKIE_MAGIC "The Magic Word!"
174	/** The initial cookie. */
175	#define SUPCOOKIE_INITIAL_COOKIE 0x69726f74 /* 'tori' */
176
177	/** Current interface version.
178	* The upper 16-bit is the major version, the the lower the minor version.
179	* When incompatible changes are made, the upper major number has to be changed.
180	*
181	* Update rules:
182	* -# Only update the major number when incompatible changes have been made to
183	* the IOC interface or the ABI provided via the functions returned by
184	* SUPQUERYFUNCS.
185	* -# When adding new features (new IOC number, new flags, new exports, ++)
186	* only update the minor number and change SUPLib.cpp to require the
187	* new IOC version.
188	* -# When incrementing the major number, clear the minor part and reset
189	* any IOC version requirements in SUPLib.cpp.
190	* -# When increment the major number, execute all pending work.
191	*
192	* @todo Pending work on next major version change:
193	* - None.
194	*/
195	#define SUPDRV_IOC_VERSION 0x00160000
196
197	/** SUP_IOCTL_COOKIE. */
198	typedef struct SUPCOOKIE
199	{
200	/** The header.
201	* u32Cookie must be set to SUPCOOKIE_INITIAL_COOKIE.
202	* u32SessionCookie should be set to some random value. */
203	SUPREQHDR Hdr;
204	union
205	{
206	struct
207	{
208	/** Magic word. */
209	char szMagic[16];
210	/** The requested interface version number. */
211	uint32_t u32ReqVersion;
212	/** The minimum interface version number. */
213	uint32_t u32MinVersion;
214	} In;
215	struct
216	{
217	/** Cookie. */
218	uint32_t u32Cookie;
219	/** Session cookie. */
220	uint32_t u32SessionCookie;
221	/** Interface version for this session. */
222	uint32_t u32SessionVersion;
223	/** The actual interface version in the driver. */
224	uint32_t u32DriverVersion;
225	/** Number of functions available for the SUP_IOCTL_QUERY_FUNCS request. */
226	uint32_t cFunctions;
227	/** Session handle. */
228	R0PTRTYPE(PSUPDRVSESSION) pSession;
229	} Out;
230	} u;
231	} SUPCOOKIE, *PSUPCOOKIE;
232	/** @} */
233
234
235	/** @name SUP_IOCTL_QUERY_FUNCS
236	* Query SUPR0 functions.
237	* @{
238	*/
239	#define SUP_IOCTL_QUERY_FUNCS(cFuncs) SUP_CTL_CODE_BIG(2)
240	#define SUP_IOCTL_QUERY_FUNCS_SIZE(cFuncs) RT_UOFFSETOF(SUPQUERYFUNCS, u.Out.aFunctions[(cFuncs)])
241	#define SUP_IOCTL_QUERY_FUNCS_SIZE_IN sizeof(SUPREQHDR)
242	#define SUP_IOCTL_QUERY_FUNCS_SIZE_OUT(cFuncs) SUP_IOCTL_QUERY_FUNCS_SIZE(cFuncs)
243
244	/** A function. */
245	typedef struct SUPFUNC
246	{
247	/** Name - mangled. */
248	char szName[32];
249	/** Address. */
250	RTR0PTR pfn;
251	} SUPFUNC, *PSUPFUNC;
252
253	typedef struct SUPQUERYFUNCS
254	{
255	/** The header. */
256	SUPREQHDR Hdr;
257	union
258	{
259	struct
260	{
261	/** Number of functions returned. */
262	uint32_t cFunctions;
263	/** Array of functions. */
264	SUPFUNC aFunctions[1];
265	} Out;
266	} u;
267	} SUPQUERYFUNCS, *PSUPQUERYFUNCS;
268	/** @} */
269
270
271	/** @name SUP_IOCTL_LDR_OPEN
272	* Open an image.
273	* @{
274	*/
275	#define SUP_IOCTL_LDR_OPEN SUP_CTL_CODE_SIZE(3, SUP_IOCTL_LDR_OPEN_SIZE)
276	#define SUP_IOCTL_LDR_OPEN_SIZE sizeof(SUPLDROPEN)
277	#define SUP_IOCTL_LDR_OPEN_SIZE_IN sizeof(SUPLDROPEN)
278	#define SUP_IOCTL_LDR_OPEN_SIZE_OUT (sizeof(SUPREQHDR) + RT_SIZEOFMEMB(SUPLDROPEN, u.Out))
279	typedef struct SUPLDROPEN
280	{
281	/** The header. */
282	SUPREQHDR Hdr;
283	union
284	{
285	struct
286	{
287	/** Size of the image we'll be loading (including tables). */
288	uint32_t cbImageWithTabs;
289	/** The size of the image bits. (Less or equal to cbImageWithTabs.) */
290	uint32_t cbImageBits;
291	/** Image name.
292	* This is the NAME of the image, not the file name. It is used
293	* to share code with other processes. (Max len is 32 chars!) */
294	char szName[32];
295	/** Image file name.
296	* This can be used to load the image using a native loader. */
297	char szFilename[260];
298	} In;
299	struct
300	{
301	/** The base address of the image. */
302	RTR0PTR pvImageBase;
303	/** Indicate whether or not the image requires loading. */
304	bool fNeedsLoading;
305	/** Indicates that we're using the native ring-0 loader. */
306	bool fNativeLoader;
307	} Out;
308	} u;
309	} SUPLDROPEN, *PSUPLDROPEN;
310	/** @} */
311
312
313	/** @name SUP_IOCTL_LDR_LOAD
314	* Upload the image bits.
315	* @{
316	*/
317	#define SUP_IOCTL_LDR_LOAD SUP_CTL_CODE_BIG(4)
318	#define SUP_IOCTL_LDR_LOAD_SIZE(cbImage) RT_UOFFSETOF(SUPLDRLOAD, u.In.abImage[cbImage])
319	#define SUP_IOCTL_LDR_LOAD_SIZE_IN(cbImage) RT_UOFFSETOF(SUPLDRLOAD, u.In.abImage[cbImage])
320	#define SUP_IOCTL_LDR_LOAD_SIZE_OUT sizeof(SUPREQHDR)
321
322	/**
323	* Module initialization callback function.
324	* This is called once after the module has been loaded.
325	*
326	* @returns 0 on success.
327	* @returns Appropriate error code on failure.
328	*/
329	typedef DECLCALLBACK(int) FNR0MODULEINIT(void);
330	/** Pointer to a FNR0MODULEINIT(). */
331	typedef R0PTRTYPE(FNR0MODULEINIT *) PFNR0MODULEINIT;
332
333	/**
334	* Module termination callback function.
335	* This is called once right before the module is being unloaded.
336	*/
337	typedef DECLCALLBACK(void) FNR0MODULETERM(void);
338	/** Pointer to a FNR0MODULETERM(). */
339	typedef R0PTRTYPE(FNR0MODULETERM *) PFNR0MODULETERM;
340
341	/**
342	* Symbol table entry.
343	*/
344	typedef struct SUPLDRSYM
345	{
346	/** Offset into of the string table. */
347	uint32_t offName;
348	/** Offset of the symbol relative to the image load address. */
349	uint32_t offSymbol;
350	} SUPLDRSYM;
351	/** Pointer to a symbol table entry. */
352	typedef SUPLDRSYM *PSUPLDRSYM;
353	/** Pointer to a const symbol table entry. */
354	typedef SUPLDRSYM const *PCSUPLDRSYM;
355
356	/**
357	* SUPLDRLOAD::u::In::EP type.
358	*/
359	typedef enum SUPLDRLOADEP
360	{
361	SUPLDRLOADEP_NOTHING = 0,
362	SUPLDRLOADEP_VMMR0,
363	SUPLDRLOADEP_SERVICE,
364	SUPLDRLOADEP_32BIT_HACK = 0x7fffffff
365	} SUPLDRLOADEP;
366
367	typedef struct SUPLDRLOAD
368	{
369	/** The header. */
370	SUPREQHDR Hdr;
371	union
372	{
373	struct
374	{
375	/** The address of module initialization function. Similar to _DLL_InitTerm(hmod, 0). */
376	PFNR0MODULEINIT pfnModuleInit;
377	/** The address of module termination function. Similar to _DLL_InitTerm(hmod, 1). */
378	PFNR0MODULETERM pfnModuleTerm;
379	/** Special entry points. */
380	union
381	{
382	/** SUPLDRLOADEP_VMMR0. */
383	struct
384	{
385	/** The module handle (i.e. address). */
386	RTR0PTR pvVMMR0;
387	/** Address of VMMR0EntryInt function. */
388	RTR0PTR pvVMMR0EntryInt;
389	/** Address of VMMR0EntryFast function. */
390	RTR0PTR pvVMMR0EntryFast;
391	/** Address of VMMR0EntryEx function. */
392	RTR0PTR pvVMMR0EntryEx;
393	} VMMR0;
394	/** SUPLDRLOADEP_SERVICE. */
395	struct
396	{
397	/** The service request handler.
398	* (PFNR0SERVICEREQHANDLER isn't defined yet.) */
399	RTR0PTR pfnServiceReq;
400	/** Reserved, must be NIL. */
401	RTR0PTR apvReserved[3];
402	} Service;
403	} EP;
404	/** Address. */
405	RTR0PTR pvImageBase;
406	/** Entry point type. */
407	SUPLDRLOADEP eEPType;
408	/** The size of the image bits (starting at offset 0 and
409	* approaching offSymbols). */
410	uint32_t cbImageBits;
411	/** The offset of the symbol table. */
412	uint32_t offSymbols;
413	/** The number of entries in the symbol table. */
414	uint32_t cSymbols;
415	/** The offset of the string table. */
416	uint32_t offStrTab;
417	/** Size of the string table. */
418	uint32_t cbStrTab;
419	/** Size of image data in achImage. */
420	uint32_t cbImageWithTabs;
421	/** The image data. */
422	uint8_t abImage[1];
423	} In;
424	} u;
425	} SUPLDRLOAD, *PSUPLDRLOAD;
426	/** @} */
427
428
429	/** @name SUP_IOCTL_LDR_FREE
430	* Free an image.
431	* @{
432	*/
433	#define SUP_IOCTL_LDR_FREE SUP_CTL_CODE_SIZE(5, SUP_IOCTL_LDR_FREE_SIZE)
434	#define SUP_IOCTL_LDR_FREE_SIZE sizeof(SUPLDRFREE)
435	#define SUP_IOCTL_LDR_FREE_SIZE_IN sizeof(SUPLDRFREE)
436	#define SUP_IOCTL_LDR_FREE_SIZE_OUT sizeof(SUPREQHDR)
437	typedef struct SUPLDRFREE
438	{
439	/** The header. */
440	SUPREQHDR Hdr;
441	union
442	{
443	struct
444	{
445	/** Address. */
446	RTR0PTR pvImageBase;
447	} In;
448	} u;
449	} SUPLDRFREE, *PSUPLDRFREE;
450	/** @} */
451
452
453	/** @name SUP_IOCTL_LDR_GET_SYMBOL
454	* Get address of a symbol within an image.
455	* @{
456	*/
457	#define SUP_IOCTL_LDR_GET_SYMBOL SUP_CTL_CODE_SIZE(6, SUP_IOCTL_LDR_GET_SYMBOL_SIZE)
458	#define SUP_IOCTL_LDR_GET_SYMBOL_SIZE sizeof(SUPLDRGETSYMBOL)
459	#define SUP_IOCTL_LDR_GET_SYMBOL_SIZE_IN sizeof(SUPLDRGETSYMBOL)
460	#define SUP_IOCTL_LDR_GET_SYMBOL_SIZE_OUT (sizeof(SUPREQHDR) + RT_SIZEOFMEMB(SUPLDRGETSYMBOL, u.Out))
461	typedef struct SUPLDRGETSYMBOL
462	{
463	/** The header. */
464	SUPREQHDR Hdr;
465	union
466	{
467	struct
468	{
469	/** Address. */
470	RTR0PTR pvImageBase;
471	/** The symbol name. */
472	char szSymbol[64];
473	} In;
474	struct
475	{
476	/** The symbol address. */
477	RTR0PTR pvSymbol;
478	} Out;
479	} u;
480	} SUPLDRGETSYMBOL, *PSUPLDRGETSYMBOL;
481	/** @} */
482
483
484	/** @name SUP_IOCTL_CALL_VMMR0
485	* Call the R0 VMM Entry point.
486	*
487	* @todo Might have to convert this to a big request...
488	* @{
489	*/
490	#define SUP_IOCTL_CALL_VMMR0(cbReq) SUP_CTL_CODE_SIZE(7, SUP_IOCTL_CALL_VMMR0_SIZE(cbReq))
491	#define SUP_IOCTL_CALL_VMMR0_SIZE(cbReq) RT_UOFFSETOF(SUPCALLVMMR0, abReqPkt[cbReq])
492	#define SUP_IOCTL_CALL_VMMR0_SIZE_IN(cbReq) SUP_IOCTL_CALL_VMMR0_SIZE(cbReq)
493	#define SUP_IOCTL_CALL_VMMR0_SIZE_OUT(cbReq) SUP_IOCTL_CALL_VMMR0_SIZE(cbReq)
494	typedef struct SUPCALLVMMR0
495	{
496	/** The header. */
497	SUPREQHDR Hdr;
498	union
499	{
500	struct
501	{
502	/** The VM handle. */
503	PVMR0 pVMR0;
504	/** VCPU id. */
505	uint32_t idCpu;
506	/** Which operation to execute. */
507	uint32_t uOperation;
508	/** Argument to use when no request packet is supplied. */
509	uint64_t u64Arg;
510	} In;
511	} u;
512	/** The VMMR0Entry request packet. */
513	uint8_t abReqPkt[1];
514	} SUPCALLVMMR0, *PSUPCALLVMMR0;
515	/** @} */
516
517
518	/** @name SUP_IOCTL_LOW_ALLOC
519	* Allocate memory below 4GB (physically).
520	* @{
521	*/
522	#define SUP_IOCTL_LOW_ALLOC SUP_CTL_CODE_BIG(8)
523	#define SUP_IOCTL_LOW_ALLOC_SIZE(cPages) ((uint32_t)RT_UOFFSETOF(SUPLOWALLOC, u.Out.aPages[cPages]))
524	#define SUP_IOCTL_LOW_ALLOC_SIZE_IN (sizeof(SUPREQHDR) + RT_SIZEOFMEMB(SUPLOWALLOC, u.In))
525	#define SUP_IOCTL_LOW_ALLOC_SIZE_OUT(cPages) SUP_IOCTL_LOW_ALLOC_SIZE(cPages)
526	typedef struct SUPLOWALLOC
527	{
528	/** The header. */
529	SUPREQHDR Hdr;
530	union
531	{
532	struct
533	{
534	/** Number of pages to allocate. */
535	uint32_t cPages;
536	} In;
537	struct
538	{
539	/** The ring-3 address of the allocated memory. */
540	RTR3PTR pvR3;
541	/** The ring-0 address of the allocated memory. */
542	RTR0PTR pvR0;
543	/** Array of pages. */
544	RTHCPHYS aPages[1];
545	} Out;
546	} u;
547	} SUPLOWALLOC, *PSUPLOWALLOC;
548	/** @} */
549
550
551	/** @name SUP_IOCTL_LOW_FREE
552	* Free low memory.
553	* @{
554	*/
555	#define SUP_IOCTL_LOW_FREE SUP_CTL_CODE_SIZE(9, SUP_IOCTL_LOW_FREE_SIZE)
556	#define SUP_IOCTL_LOW_FREE_SIZE sizeof(SUPLOWFREE)
557	#define SUP_IOCTL_LOW_FREE_SIZE_IN sizeof(SUPLOWFREE)
558	#define SUP_IOCTL_LOW_FREE_SIZE_OUT sizeof(SUPREQHDR)
559	typedef struct SUPLOWFREE
560	{
561	/** The header. */
562	SUPREQHDR Hdr;
563	union
564	{
565	struct
566	{
567	/** The ring-3 address of the memory to free. */
568	RTR3PTR pvR3;
569	} In;
570	} u;
571	} SUPLOWFREE, *PSUPLOWFREE;
572	/** @} */
573
574
575	/** @name SUP_IOCTL_PAGE_ALLOC_EX
576	* Allocate memory and map it into kernel and/or user space. The memory is of
577	* course locked. The result should be freed using SUP_IOCTL_PAGE_FREE.
578	*
579	* @remarks Allocations without a kernel mapping may fail with
580	* VERR_NOT_SUPPORTED on some platforms.
581	*
582	* @{
583	*/
584	#define SUP_IOCTL_PAGE_ALLOC_EX SUP_CTL_CODE_BIG(10)
585	#define SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages) RT_UOFFSETOF(SUPPAGEALLOCEX, u.Out.aPages[cPages])
586	#define SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN (sizeof(SUPREQHDR) + RT_SIZEOFMEMB(SUPPAGEALLOCEX, u.In))
587	#define SUP_IOCTL_PAGE_ALLOC_EX_SIZE_OUT(cPages) SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages)
588	typedef struct SUPPAGEALLOCEX
589	{
590	/** The header. */
591	SUPREQHDR Hdr;
592	union
593	{
594	struct
595	{
596	/** Number of pages to allocate */
597	uint32_t cPages;
598	/** Whether it should have kernel mapping. */
599	bool fKernelMapping;
600	/** Whether it should have a user mapping. */
601	bool fUserMapping;
602	/** Reserved. Must be false. */
603	bool fReserved0;
604	/** Reserved. Must be false. */
605	bool fReserved1;
606	} In;
607	struct
608	{
609	/** Returned ring-3 address. */
610	RTR3PTR pvR3;
611	/** Returned ring-0 address. */
612	RTR0PTR pvR0;
613	/** The physical addresses of the allocated pages. */
614	RTHCPHYS aPages[1];
615	} Out;
616	} u;
617	} SUPPAGEALLOCEX, *PSUPPAGEALLOCEX;
618	/** @} */
619
620
621	/** @name SUP_IOCTL_PAGE_MAP_KERNEL
622	* Maps a portion of memory allocated by SUP_IOCTL_PAGE_ALLOC_EX /
623	* SUPR0PageAllocEx into kernel space for use by a device or similar.
624	*
625	* The mapping will be freed together with the ring-3 mapping when
626	* SUP_IOCTL_PAGE_FREE or SUPR0PageFree is called.
627	*
628	* @remarks Not necessarily supported on all platforms.
629	*
630	* @{
631	*/
632	#define SUP_IOCTL_PAGE_MAP_KERNEL SUP_CTL_CODE_SIZE(11, SUP_IOCTL_PAGE_MAP_KERNEL_SIZE)
633	#define SUP_IOCTL_PAGE_MAP_KERNEL_SIZE sizeof(SUPPAGEMAPKERNEL)
634	#define SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_IN sizeof(SUPPAGEMAPKERNEL)
635	#define SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_OUT sizeof(SUPPAGEMAPKERNEL)
636	typedef struct SUPPAGEMAPKERNEL
637	{
638	/** The header. */
639	SUPREQHDR Hdr;
640	union
641	{
642	struct
643	{
644	/** The pointer of to the previously allocated memory. */
645	RTR3PTR pvR3;
646	/** The offset to start mapping from. */
647	uint32_t offSub;
648	/** Size of the section to map. */
649	uint32_t cbSub;
650	/** Flags reserved for future fun. */
651	uint32_t fFlags;
652	} In;
653	struct
654	{
655	/** The ring-0 address corresponding to pvR3 + offSub. */
656	RTR0PTR pvR0;
657	} Out;
658	} u;
659	} SUPPAGEMAPKERNEL, *PSUPPAGEMAPKERNEL;
660	/** @} */
661
662
663	/** @name SUP_IOCTL_PAGE_PROTECT
664	* Changes the page level protection of the user and/or kernel mappings of
665	* memory previously allocated by SUPR0PageAllocEx.
666	*
667	* @remarks Not necessarily supported on all platforms.
668	*
669	* @{
670	*/
671	#define SUP_IOCTL_PAGE_PROTECT SUP_CTL_CODE_SIZE(12, SUP_IOCTL_PAGE_PROTECT_SIZE)
672	#define SUP_IOCTL_PAGE_PROTECT_SIZE sizeof(SUPPAGEPROTECT)
673	#define SUP_IOCTL_PAGE_PROTECT_SIZE_IN sizeof(SUPPAGEPROTECT)
674	#define SUP_IOCTL_PAGE_PROTECT_SIZE_OUT sizeof(SUPPAGEPROTECT)
675	typedef struct SUPPAGEPROTECT
676	{
677	/** The header. */
678	SUPREQHDR Hdr;
679	union
680	{
681	struct
682	{
683	/** The pointer of to the previously allocated memory.
684	* Pass NIL_RTR3PTR if the ring-0 mapping should remain unaffected. */
685	RTR3PTR pvR3;
686	/** The pointer of to the previously allocated memory.
687	* Pass NIL_RTR0PTR if the ring-0 mapping should remain unaffected. */
688	RTR0PTR pvR0;
689	/** The offset to start changing protection at. */
690	uint32_t offSub;
691	/** Size of the portion that should be changed. */
692	uint32_t cbSub;
693	/** Protection flags, RTMEM_PROT_. /
694	uint32_t fProt;
695	} In;
696	} u;
697	} SUPPAGEPROTECT, *PSUPPAGEPROTECT;
698	/** @} */
699
700
701	/** @name SUP_IOCTL_PAGE_FREE
702	* Free memory allocated with SUP_IOCTL_PAGE_ALLOC_EX.
703	* @{
704	*/
705	#define SUP_IOCTL_PAGE_FREE SUP_CTL_CODE_SIZE(13, SUP_IOCTL_PAGE_FREE_SIZE_IN)
706	#define SUP_IOCTL_PAGE_FREE_SIZE sizeof(SUPPAGEFREE)
707	#define SUP_IOCTL_PAGE_FREE_SIZE_IN sizeof(SUPPAGEFREE)
708	#define SUP_IOCTL_PAGE_FREE_SIZE_OUT sizeof(SUPREQHDR)
709	typedef struct SUPPAGEFREE
710	{
711	/** The header. */
712	SUPREQHDR Hdr;
713	union
714	{
715	struct
716	{
717	/** Address of memory range to free. */
718	RTR3PTR pvR3;
719	} In;
720	} u;
721	} SUPPAGEFREE, *PSUPPAGEFREE;
722	/** @} */
723
724
725
726
727	/** @name SUP_IOCTL_PAGE_LOCK
728	* Pin down physical pages.
729	* @{
730	*/
731	#define SUP_IOCTL_PAGE_LOCK SUP_CTL_CODE_BIG(14)
732	#define SUP_IOCTL_PAGE_LOCK_SIZE(cPages) (RT_MAX((size_t)SUP_IOCTL_PAGE_LOCK_SIZE_IN, (size_t)SUP_IOCTL_PAGE_LOCK_SIZE_OUT(cPages)))
733	#define SUP_IOCTL_PAGE_LOCK_SIZE_IN (sizeof(SUPREQHDR) + RT_SIZEOFMEMB(SUPPAGELOCK, u.In))
734	#define SUP_IOCTL_PAGE_LOCK_SIZE_OUT(cPages) RT_UOFFSETOF(SUPPAGELOCK, u.Out.aPages[cPages])
735	typedef struct SUPPAGELOCK
736	{
737	/** The header. */
738	SUPREQHDR Hdr;
739	union
740	{
741	struct
742	{
743	/** Start of page range. Must be PAGE aligned. */
744	RTR3PTR pvR3;
745	/** The range size given as a page count. */
746	uint32_t cPages;
747	} In;
748
749	struct
750	{
751	/** Array of pages. */
752	RTHCPHYS aPages[1];
753	} Out;
754	} u;
755	} SUPPAGELOCK, *PSUPPAGELOCK;
756	/** @} */
757
758
759	/** @name SUP_IOCTL_PAGE_UNLOCK
760	* Unpin physical pages.
761	* @{ */
762	#define SUP_IOCTL_PAGE_UNLOCK SUP_CTL_CODE_SIZE(15, SUP_IOCTL_PAGE_UNLOCK_SIZE)
763	#define SUP_IOCTL_PAGE_UNLOCK_SIZE sizeof(SUPPAGEUNLOCK)
764	#define SUP_IOCTL_PAGE_UNLOCK_SIZE_IN sizeof(SUPPAGEUNLOCK)
765	#define SUP_IOCTL_PAGE_UNLOCK_SIZE_OUT sizeof(SUPREQHDR)
766	typedef struct SUPPAGEUNLOCK
767	{
768	/** The header. */
769	SUPREQHDR Hdr;
770	union
771	{
772	struct
773	{
774	/** Start of page range of a range previously pinned. */
775	RTR3PTR pvR3;
776	} In;
777	} u;
778	} SUPPAGEUNLOCK, *PSUPPAGEUNLOCK;
779	/** @} */
780
781
782	/** @name SUP_IOCTL_CONT_ALLOC
783	* Allocate continuous memory.
784	* @{
785	*/
786	#define SUP_IOCTL_CONT_ALLOC SUP_CTL_CODE_SIZE(16, SUP_IOCTL_CONT_ALLOC_SIZE)
787	#define SUP_IOCTL_CONT_ALLOC_SIZE sizeof(SUPCONTALLOC)
788	#define SUP_IOCTL_CONT_ALLOC_SIZE_IN (sizeof(SUPREQHDR) + RT_SIZEOFMEMB(SUPCONTALLOC, u.In))
789	#define SUP_IOCTL_CONT_ALLOC_SIZE_OUT sizeof(SUPCONTALLOC)
790	typedef struct SUPCONTALLOC
791	{
792	/** The header. */
793	SUPREQHDR Hdr;
794	union
795	{
796	struct
797	{
798	/** The allocation size given as a page count. */
799	uint32_t cPages;
800	} In;
801
802	struct
803	{
804	/** The address of the ring-0 mapping of the allocated memory. */
805	RTR0PTR pvR0;
806	/** The address of the ring-3 mapping of the allocated memory. */
807	RTR3PTR pvR3;
808	/** The physical address of the allocation. */
809	RTHCPHYS HCPhys;
810	} Out;
811	} u;
812	} SUPCONTALLOC, *PSUPCONTALLOC;
813	/** @} */
814
815
816	/** @name SUP_IOCTL_CONT_FREE Input.
817	* @{
818	*/
819	/** Free continuous memory. */
820	#define SUP_IOCTL_CONT_FREE SUP_CTL_CODE_SIZE(17, SUP_IOCTL_CONT_FREE_SIZE)
821	#define SUP_IOCTL_CONT_FREE_SIZE sizeof(SUPCONTFREE)
822	#define SUP_IOCTL_CONT_FREE_SIZE_IN sizeof(SUPCONTFREE)
823	#define SUP_IOCTL_CONT_FREE_SIZE_OUT sizeof(SUPREQHDR)
824	typedef struct SUPCONTFREE
825	{
826	/** The header. */
827	SUPREQHDR Hdr;
828	union
829	{
830	struct
831	{
832	/** The ring-3 address of the memory to free. */
833	RTR3PTR pvR3;
834	} In;
835	} u;
836	} SUPCONTFREE, *PSUPCONTFREE;
837	/** @} */
838
839
840	/** @name SUP_IOCTL_GET_PAGING_MODE
841	* Get the host paging mode.
842	* @{
843	*/
844	#define SUP_IOCTL_GET_PAGING_MODE SUP_CTL_CODE_SIZE(18, SUP_IOCTL_GET_PAGING_MODE_SIZE)
845	#define SUP_IOCTL_GET_PAGING_MODE_SIZE sizeof(SUPGETPAGINGMODE)
846	#define SUP_IOCTL_GET_PAGING_MODE_SIZE_IN sizeof(SUPREQHDR)
847	#define SUP_IOCTL_GET_PAGING_MODE_SIZE_OUT sizeof(SUPGETPAGINGMODE)
848	typedef struct SUPGETPAGINGMODE
849	{
850	/** The header. */
851	SUPREQHDR Hdr;
852	union
853	{
854	struct
855	{
856	/** The paging mode. */
857	SUPPAGINGMODE enmMode;
858	} Out;
859	} u;
860	} SUPGETPAGINGMODE, *PSUPGETPAGINGMODE;
861	/** @} */
862
863
864	/** @name SUP_IOCTL_SET_VM_FOR_FAST
865	* Set the VM handle for doing fast call ioctl calls.
866	* @{
867	*/
868	#define SUP_IOCTL_SET_VM_FOR_FAST SUP_CTL_CODE_SIZE(19, SUP_IOCTL_SET_VM_FOR_FAST_SIZE)
869	#define SUP_IOCTL_SET_VM_FOR_FAST_SIZE sizeof(SUPSETVMFORFAST)
870	#define SUP_IOCTL_SET_VM_FOR_FAST_SIZE_IN sizeof(SUPSETVMFORFAST)
871	#define SUP_IOCTL_SET_VM_FOR_FAST_SIZE_OUT sizeof(SUPREQHDR)
872	typedef struct SUPSETVMFORFAST
873	{
874	/** The header. */
875	SUPREQHDR Hdr;
876	union
877	{
878	struct
879	{
880	/** The ring-0 VM handle (pointer). */
881	PVMR0 pVMR0;
882	} In;
883	} u;
884	} SUPSETVMFORFAST, *PSUPSETVMFORFAST;
885	/** @} */
886
887
888	/** @name SUP_IOCTL_GIP_MAP
889	* Map the GIP into user space.
890	* @{
891	*/
892	#define SUP_IOCTL_GIP_MAP SUP_CTL_CODE_SIZE(20, SUP_IOCTL_GIP_MAP_SIZE)
893	#define SUP_IOCTL_GIP_MAP_SIZE sizeof(SUPGIPMAP)
894	#define SUP_IOCTL_GIP_MAP_SIZE_IN sizeof(SUPREQHDR)
895	#define SUP_IOCTL_GIP_MAP_SIZE_OUT sizeof(SUPGIPMAP)
896	typedef struct SUPGIPMAP
897	{
898	/** The header. */
899	SUPREQHDR Hdr;
900	union
901	{
902	struct
903	{
904	/** The physical address of the GIP. */
905	RTHCPHYS HCPhysGip;
906	/** Pointer to the read-only usermode GIP mapping for this session. */
907	R3PTRTYPE(PSUPGLOBALINFOPAGE) pGipR3;
908	/** Pointer to the supervisor mode GIP mapping. */
909	R0PTRTYPE(PSUPGLOBALINFOPAGE) pGipR0;
910	} Out;
911	} u;
912	} SUPGIPMAP, *PSUPGIPMAP;
913	/** @} */
914
915
916	/** @name SUP_IOCTL_GIP_UNMAP
917	* Unmap the GIP.
918	* @{
919	*/
920	#define SUP_IOCTL_GIP_UNMAP SUP_CTL_CODE_SIZE(21, SUP_IOCTL_GIP_UNMAP_SIZE)
921	#define SUP_IOCTL_GIP_UNMAP_SIZE sizeof(SUPGIPUNMAP)
922	#define SUP_IOCTL_GIP_UNMAP_SIZE_IN sizeof(SUPGIPUNMAP)
923	#define SUP_IOCTL_GIP_UNMAP_SIZE_OUT sizeof(SUPGIPUNMAP)
924	typedef struct SUPGIPUNMAP
925	{
926	/** The header. */
927	SUPREQHDR Hdr;
928	} SUPGIPUNMAP, *PSUPGIPUNMAP;
929	/** @} */
930
931
932	/** @name SUP_IOCTL_CALL_SERVICE
933	* Call the a ring-0 service.
934	*
935	* @todo Might have to convert this to a big request, just like
936	* SUP_IOCTL_CALL_VMMR0
937	* @{
938	*/
939	#define SUP_IOCTL_CALL_SERVICE(cbReq) SUP_CTL_CODE_SIZE(22, SUP_IOCTL_CALL_SERVICE_SIZE(cbReq))
940	#define SUP_IOCTL_CALL_SERVICE_SIZE(cbReq) RT_UOFFSETOF(SUPCALLSERVICE, abReqPkt[cbReq])
941	#define SUP_IOCTL_CALL_SERVICE_SIZE_IN(cbReq) SUP_IOCTL_CALL_SERVICE_SIZE(cbReq)
942	#define SUP_IOCTL_CALL_SERVICE_SIZE_OUT(cbReq) SUP_IOCTL_CALL_SERVICE_SIZE(cbReq)
943	typedef struct SUPCALLSERVICE
944	{
945	/** The header. */
946	SUPREQHDR Hdr;
947	union
948	{
949	struct
950	{
951	/** The service name. */
952	char szName[28];
953	/** Which operation to execute. */
954	uint32_t uOperation;
955	/** Argument to use when no request packet is supplied. */
956	uint64_t u64Arg;
957	} In;
958	} u;
959	/** The request packet passed to SUP. */
960	uint8_t abReqPkt[1];
961	} SUPCALLSERVICE, *PSUPCALLSERVICE;
962	/** @} */
963
964
965	/** @name SUP_IOCTL_LOGGER_SETTINGS
966	* Changes the ring-0 release or debug logger settings.
967	* @{
968	*/
969	#define SUP_IOCTL_LOGGER_SETTINGS(cbStrTab) SUP_CTL_CODE_SIZE(23, SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab))
970	#define SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab) RT_UOFFSETOF(SUPLOGGERSETTINGS, u.In.szStrings[cbStrTab])
971	#define SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(cbStrTab) RT_UOFFSETOF(SUPLOGGERSETTINGS, u.In.szStrings[cbStrTab])
972	#define SUP_IOCTL_LOGGER_SETTINGS_SIZE_OUT sizeof(SUPREQHDR)
973	typedef struct SUPLOGGERSETTINGS
974	{
975	/** The header. */
976	SUPREQHDR Hdr;
977	union
978	{
979	struct
980	{
981	/** Which logger. */
982	uint32_t fWhich;
983	/** What to do with it. */
984	uint32_t fWhat;
985	/** Offset of the flags setting string. */
986	uint32_t offFlags;
987	/** Offset of the groups setting string. */
988	uint32_t offGroups;
989	/** Offset of the destination setting string. */
990	uint32_t offDestination;
991	/** The string table. */
992	char szStrings[1];
993	} In;
994	} u;
995	} SUPLOGGERSETTINGS, *PSUPLOGGERSETTINGS;
996
997	/** Debug logger. */
998	#define SUPLOGGERSETTINGS_WHICH_DEBUG 0
999	/** Release logger. */
1000	#define SUPLOGGERSETTINGS_WHICH_RELEASE 1
1001
1002	/** Change the settings. */
1003	#define SUPLOGGERSETTINGS_WHAT_SETTINGS 0
1004	/** Create the logger instance. */
1005	#define SUPLOGGERSETTINGS_WHAT_CREATE 1
1006	/** Destroy the logger instance. */
1007	#define SUPLOGGERSETTINGS_WHAT_DESTROY 2
1008
1009	/** @} */
1010
1011
1012	/** @name Semaphore Types
1013	* @{ */
1014	#define SUP_SEM_TYPE_EVENT 0
1015	#define SUP_SEM_TYPE_EVENT_MULTI 1
1016	/** @} */
1017
1018
1019	/** @name SUP_IOCTL_SEM_OP2
1020	* Semaphore operations.
1021	* @remarks This replaces the old SUP_IOCTL_SEM_OP interface.
1022	* @{
1023	*/
1024	#define SUP_IOCTL_SEM_OP2 SUP_CTL_CODE_SIZE(24, SUP_IOCTL_SEM_OP2_SIZE)
1025	#define SUP_IOCTL_SEM_OP2_SIZE sizeof(SUPSEMOP2)
1026	#define SUP_IOCTL_SEM_OP2_SIZE_IN sizeof(SUPSEMOP2)
1027	#define SUP_IOCTL_SEM_OP2_SIZE_OUT sizeof(SUPREQHDR)
1028	typedef struct SUPSEMOP2
1029	{
1030	/** The header. */
1031	SUPREQHDR Hdr;
1032	union
1033	{
1034	struct
1035	{
1036	/** The semaphore type. */
1037	uint32_t uType;
1038	/** The semaphore handle. */
1039	uint32_t hSem;
1040	/** The operation. */
1041	uint32_t uOp;
1042	/** Reserved, must be zero. */
1043	uint32_t uReserved;
1044	/** The number of milliseconds to wait if it's a wait operation. */
1045	union
1046	{
1047	/** Absolute timeout (RTTime[System]NanoTS).
1048	* Used by SUPSEMOP2_WAIT_NS_ABS. */
1049	uint64_t uAbsNsTimeout;
1050	/** Relative nanosecond timeout.
1051	* Used by SUPSEMOP2_WAIT_NS_REL. */
1052	uint64_t cRelNsTimeout;
1053	/** Relative millisecond timeout.
1054	* Used by SUPSEMOP2_WAIT_MS_REL. */
1055	uint32_t cRelMsTimeout;
1056	/** Generic 64-bit accessor.
1057	* ASSUMES little endian! */
1058	uint64_t u64;
1059	} uArg;
1060	} In;
1061	} u;
1062	} SUPSEMOP2, *PSUPSEMOP2;
1063
1064	/** Wait for a number of milliseconds. */
1065	#define SUPSEMOP2_WAIT_MS_REL 0
1066	/** Wait until the specified deadline is reached. */
1067	#define SUPSEMOP2_WAIT_NS_ABS 1
1068	/** Wait for a number of nanoseconds. */
1069	#define SUPSEMOP2_WAIT_NS_REL 2
1070	/** Signal the semaphore. */
1071	#define SUPSEMOP2_SIGNAL 3
1072	/** Reset the semaphore (only applicable to SUP_SEM_TYPE_EVENT_MULTI). */
1073	#define SUPSEMOP2_RESET 4
1074	/** Close the semaphore handle. */
1075	#define SUPSEMOP2_CLOSE 5
1076	/** @} */
1077
1078	/** @name SUP_IOCTL_SEM_OP3
1079	* Semaphore operations.
1080	* @{
1081	*/
1082	#define SUP_IOCTL_SEM_OP3 SUP_CTL_CODE_SIZE(25, SUP_IOCTL_SEM_OP3_SIZE)
1083	#define SUP_IOCTL_SEM_OP3_SIZE sizeof(SUPSEMOP3)
1084	#define SUP_IOCTL_SEM_OP3_SIZE_IN sizeof(SUPSEMOP3)
1085	#define SUP_IOCTL_SEM_OP3_SIZE_OUT sizeof(SUPSEMOP3)
1086	typedef struct SUPSEMOP3
1087	{
1088	/** The header. */
1089	SUPREQHDR Hdr;
1090	union
1091	{
1092	struct
1093	{
1094	/** The semaphore type. */
1095	uint32_t uType;
1096	/** The semaphore handle. */
1097	uint32_t hSem;
1098	/** The operation. */
1099	uint32_t uOp;
1100	/** Reserved, must be zero. */
1101	uint32_t u32Reserved;
1102	/** Reserved for future use. */
1103	uint64_t u64Reserved;
1104	} In;
1105	union
1106	{
1107	/** The handle of the created semaphore.
1108	* Used by SUPSEMOP3_CREATE. */
1109	uint32_t hSem;
1110	/** The semaphore resolution in nano seconds.
1111	* Used by SUPSEMOP3_GET_RESOLUTION. */
1112	uint32_t cNsResolution;
1113	/** The 32-bit view. */
1114	uint32_t u32;
1115	/** Reserved some space for later expansion. */
1116	uint64_t u64Reserved;
1117	} Out;
1118	} u;
1119	} SUPSEMOP3, *PSUPSEMOP3;
1120
1121	/** Get the wait resolution. */
1122	#define SUPSEMOP3_CREATE 0
1123	/** Get the wait resolution. */
1124	#define SUPSEMOP3_GET_RESOLUTION 1
1125	/** @} */
1126
1127	/** @name SUP_IOCTL_VT_CAPS
1128	* Get the VT-x/AMD-V capabilities.
1129	*
1130	* @todo Intended for main, which means we need to relax the privilege requires
1131	* when accessing certain vboxdrv functions.
1132	*
1133	* @{
1134	*/
1135	#define SUP_IOCTL_VT_CAPS SUP_CTL_CODE_SIZE(26, SUP_IOCTL_VT_CAPS_SIZE)
1136	#define SUP_IOCTL_VT_CAPS_SIZE sizeof(SUPVTCAPS)
1137	#define SUP_IOCTL_VT_CAPS_SIZE_IN sizeof(SUPREQHDR)
1138	#define SUP_IOCTL_VT_CAPS_SIZE_OUT sizeof(SUPVTCAPS)
1139	typedef struct SUPVTCAPS
1140	{
1141	/** The header. */
1142	SUPREQHDR Hdr;
1143	union
1144	{
1145	struct
1146	{
1147	/** The VT capability dword. */
1148	uint32_t Caps;
1149	} Out;
1150	} u;
1151	} SUPVTCAPS, *PSUPVTCAPS;
1152	/** @} */
1153
1154	#pragma pack() /* paranoia */
1155
1156	#endif
1157

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source: vbox/trunk/src/VBox/HostDrivers/Support/SUPDrvIOC.h@ 35650

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