SUPLib.cpp@ 32740

Last change on this file since 32740 was 32572, checked in by vboxsync, 14 years ago
VMM,SUPDrv,IPRT: More changes for related to the priodic preemption timer. (still disabled)
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
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1	/* $Id: SUPLib.cpp 32572 2010-09-16 16:18:12Z vboxsync $ */
2	/** @file
3	* VirtualBox Support Library - Common code.
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	/** @page pg_sup SUP - The Support Library
28	*
29	* The support library is responsible for providing facilities to load
30	* VMM Host Ring-0 code, to call Host VMM Ring-0 code from Ring-3 Host
31	* code, to pin down physical memory, and more.
32	*
33	* The VMM Host Ring-0 code can be combined in the support driver if
34	* permitted by kernel module license policies. If it is not combined
35	* it will be externalized in a .r0 module that will be loaded using
36	* the IPRT loader.
37	*
38	* The Ring-0 calling is done thru a generic SUP interface which will
39	* tranfer an argument set and call a predefined entry point in the Host
40	* VMM Ring-0 code.
41	*
42	* See @ref grp_sup "SUP - Support APIs" for API details.
43	*/
44
45	/*******************************************************************************
46	* Header Files *
47	*******************************************************************************/
48	#define LOG_GROUP LOG_GROUP_SUP
49	#include <VBox/sup.h>
50	#include <VBox/err.h>
51	#include <VBox/param.h>
52	#include <VBox/vmm.h>
53	#include <VBox/log.h>
54	#include <VBox/x86.h>
55
56	#include <iprt/assert.h>
57	#include <iprt/alloc.h>
58	#include <iprt/alloca.h>
59	#include <iprt/ldr.h>
60	#include <iprt/asm.h>
61	#include <iprt/mp.h>
62	#include <iprt/cpuset.h>
63	#include <iprt/thread.h>
64	#include <iprt/process.h>
65	#include <iprt/path.h>
66	#include <iprt/string.h>
67	#include <iprt/env.h>
68	#include <iprt/rand.h>
69
70	#include "SUPLibInternal.h"
71	#include "SUPDrvIOC.h"
72
73
74	/*******************************************************************************
75	* Defined Constants And Macros *
76	*******************************************************************************/
77	/** R0 VMM module name. */
78	#define VMMR0_NAME "VMMR0"
79
80
81	/*******************************************************************************
82	* Structures and Typedefs *
83	*******************************************************************************/
84	typedef DECLCALLBACK(int) FNCALLVMMR0(PVMR0 pVMR0, unsigned uOperation, void *pvArg);
85	typedef FNCALLVMMR0 *PFNCALLVMMR0;
86
87
88	/*******************************************************************************
89	* Global Variables *
90	*******************************************************************************/
91	/** Init counter. */
92	static uint32_t g_cInits = 0;
93	/** Whether we've been preinitied. */
94	static bool g_fPreInited = false;
95	/** The SUPLib instance data.
96	* Well, at least parts of it, specificly the parts that are being handed over
97	* via the pre-init mechanism from the hardened executable stub. */
98	SUPLIBDATA g_supLibData =
99	{
100	NIL_RTFILE
101	#if defined(RT_OS_DARWIN)
102	, NULL
103	#elif defined(RT_OS_LINUX)
104	, false
105	#endif
106	};
107
108	/** Pointer to the Global Information Page.
109	*
110	* This pointer is valid as long as SUPLib has a open session. Anyone using
111	* the page must treat this pointer as higly volatile and not trust it beyond
112	* one transaction.
113	*
114	* @todo This will probably deserve it's own session or some other good solution...
115	*/
116	DECLEXPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
117	/** Address of the ring-0 mapping of the GIP. */
118	static PSUPGLOBALINFOPAGE g_pSUPGlobalInfoPageR0;
119	/** The physical address of the GIP. */
120	static RTHCPHYS g_HCPhysSUPGlobalInfoPage = NIL_RTHCPHYS;
121
122	/** The negotiated cookie. */
123	uint32_t g_u32Cookie = 0;
124	/** The negotiated session cookie. */
125	uint32_t g_u32SessionCookie;
126	/** Session handle. */
127	PSUPDRVSESSION g_pSession;
128	/** R0 SUP Functions used for resolving referenced to the SUPR0 module. */
129	static PSUPQUERYFUNCS g_pFunctions;
130
131	/** VMMR0 Load Address. */
132	static RTR0PTR g_pvVMMR0 = NIL_RTR0PTR;
133	/** PAGE_ALLOC_EX sans kernel mapping support indicator. */
134	static bool g_fSupportsPageAllocNoKernel = true;
135	/** Fake mode indicator. (~0 at first, 0 or 1 after first test) */
136	static uint32_t g_u32FakeMode = ~0;
137
138
139	/*******************************************************************************
140	* Internal Functions *
141	*******************************************************************************/
142	static int supInitFake(PSUPDRVSESSION *ppSession);
143	static int supLoadModule(const char pszFilename, const char pszModule, const char pszSrvReqHandler, void *ppvImageBase);
144	static DECLCALLBACK(int) supLoadModuleResolveImport(RTLDRMOD hLdrMod, const char pszModule, const char pszSymbol, unsigned uSymbol, RTUINTPTR pValue, void pvUser);
145
146
147	/** Touch a range of pages. */
148	DECLINLINE(void) supR3TouchPages(void *pv, size_t cPages)
149	{
150	uint32_t volatile pu32 = (uint32_t volatile )pv;
151	while (cPages-- > 0)
152	{
153	ASMAtomicCmpXchgU32(pu32, 0, 0);
154	pu32 += PAGE_SIZE / sizeof(uint32_t);
155	}
156	}
157
158
159	SUPR3DECL(int) SUPR3Install(void)
160	{
161	return suplibOsInstall();
162	}
163
164
165	SUPR3DECL(int) SUPR3Uninstall(void)
166	{
167	return suplibOsUninstall();
168	}
169
170
171	DECLEXPORT(int) supR3PreInit(PSUPPREINITDATA pPreInitData, uint32_t fFlags)
172	{
173	/*
174	* The caller is kind of trustworthy, just perform some basic checks.
175	*
176	* Note! Do not do any fancy stuff here because IPRT has NOT been
177	* initialized at this point.
178	*/
179	if (!VALID_PTR(pPreInitData))
180	return VERR_INVALID_POINTER;
181	if (g_fPreInited \|\| g_cInits > 0)
182	return VERR_WRONG_ORDER;
183
184	if ( pPreInitData->u32Magic != SUPPREINITDATA_MAGIC
185	\|\| pPreInitData->u32EndMagic != SUPPREINITDATA_MAGIC)
186	return VERR_INVALID_MAGIC;
187	if ( !(fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV)
188	&& pPreInitData->Data.hDevice == NIL_RTFILE)
189	return VERR_INVALID_HANDLE;
190	if ( (fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV)
191	&& pPreInitData->Data.hDevice != NIL_RTFILE)
192	return VERR_INVALID_PARAMETER;
193
194	/*
195	* Hand out the data.
196	*/
197	int rc = supR3HardenedRecvPreInitData(pPreInitData);
198	if (RT_FAILURE(rc))
199	return rc;
200
201	/** @todo This may need some small restructuring later, it doesn't quite work with a root service flag... */
202	if (!(fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV))
203	{
204	g_supLibData = pPreInitData->Data;
205	g_fPreInited = true;
206	}
207
208	return VINF_SUCCESS;
209	}
210
211
212	SUPR3DECL(int) SUPR3Init(PSUPDRVSESSION *ppSession)
213	{
214	/*
215	* Perform some sanity checks.
216	* (Got some trouble with compile time member alignment assertions.)
217	*/
218	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, u64NanoTSLastUpdateHz) & 0x7));
219	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs) & 0x1f));
220	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[1]) & 0x1f));
221	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64NanoTS) & 0x7));
222	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64TSC) & 0x7));
223	Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64CpuHz) & 0x7));
224
225	/*
226	* Check if already initialized.
227	*/
228	if (ppSession)
229	*ppSession = g_pSession;
230	if (g_cInits++ > 0)
231	return VINF_SUCCESS;
232
233	/*
234	* Check for fake mode.
235	*
236	* Fake mode is used when we're doing smoke testing and debugging.
237	* It's also useful on platforms where we haven't root access or which
238	* we haven't ported the support driver to.
239	*/
240	if (g_u32FakeMode == ~0U)
241	{
242	const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
243	if (psz && !strcmp(psz, "fake"))
244	ASMAtomicCmpXchgU32(&g_u32FakeMode, 1, ~0U);
245	else
246	ASMAtomicCmpXchgU32(&g_u32FakeMode, 0, ~0U);
247	}
248	if (RT_UNLIKELY(g_u32FakeMode))
249	return supInitFake(ppSession);
250
251	/*
252	* Open the support driver.
253	*/
254	int rc = suplibOsInit(&g_supLibData, g_fPreInited);
255	if (RT_SUCCESS(rc))
256	{
257	/*
258	* Negotiate the cookie.
259	*/
260	SUPCOOKIE CookieReq;
261	memset(&CookieReq, 0xff, sizeof(CookieReq));
262	CookieReq.Hdr.u32Cookie = SUPCOOKIE_INITIAL_COOKIE;
263	CookieReq.Hdr.u32SessionCookie = RTRandU32();
264	CookieReq.Hdr.cbIn = SUP_IOCTL_COOKIE_SIZE_IN;
265	CookieReq.Hdr.cbOut = SUP_IOCTL_COOKIE_SIZE_OUT;
266	CookieReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
267	CookieReq.Hdr.rc = VERR_INTERNAL_ERROR;
268	strcpy(CookieReq.u.In.szMagic, SUPCOOKIE_MAGIC);
269	CookieReq.u.In.u32ReqVersion = SUPDRV_IOC_VERSION;
270	const uint32_t uMinVersion = (SUPDRV_IOC_VERSION & 0xffff0000) == 0x00150000
271	? 0x00150003
272	: SUPDRV_IOC_VERSION & 0xffff0000;
273	CookieReq.u.In.u32MinVersion = uMinVersion;
274	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_COOKIE, &CookieReq, SUP_IOCTL_COOKIE_SIZE);
275	if ( RT_SUCCESS(rc)
276	&& RT_SUCCESS(CookieReq.Hdr.rc))
277	{
278	if ( (CookieReq.u.Out.u32SessionVersion & 0xffff0000) == (SUPDRV_IOC_VERSION & 0xffff0000)
279	&& CookieReq.u.Out.u32SessionVersion >= uMinVersion)
280	{
281	/*
282	* Query the functions.
283	*/
284	PSUPQUERYFUNCS pFuncsReq = (PSUPQUERYFUNCS)RTMemAllocZ(SUP_IOCTL_QUERY_FUNCS_SIZE(CookieReq.u.Out.cFunctions));
285	if (pFuncsReq)
286	{
287	pFuncsReq->Hdr.u32Cookie = CookieReq.u.Out.u32Cookie;
288	pFuncsReq->Hdr.u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
289	pFuncsReq->Hdr.cbIn = SUP_IOCTL_QUERY_FUNCS_SIZE_IN;
290	pFuncsReq->Hdr.cbOut = SUP_IOCTL_QUERY_FUNCS_SIZE_OUT(CookieReq.u.Out.cFunctions);
291	pFuncsReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
292	pFuncsReq->Hdr.rc = VERR_INTERNAL_ERROR;
293	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_QUERY_FUNCS(CookieReq.u.Out.cFunctions), pFuncsReq, SUP_IOCTL_QUERY_FUNCS_SIZE(CookieReq.u.Out.cFunctions));
294	if (RT_SUCCESS(rc))
295	rc = pFuncsReq->Hdr.rc;
296	if (RT_SUCCESS(rc))
297	{
298	/*
299	* Map the GIP into userspace.
300	*/
301	Assert(!g_pSUPGlobalInfoPage);
302	SUPGIPMAP GipMapReq;
303	GipMapReq.Hdr.u32Cookie = CookieReq.u.Out.u32Cookie;
304	GipMapReq.Hdr.u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
305	GipMapReq.Hdr.cbIn = SUP_IOCTL_GIP_MAP_SIZE_IN;
306	GipMapReq.Hdr.cbOut = SUP_IOCTL_GIP_MAP_SIZE_OUT;
307	GipMapReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
308	GipMapReq.Hdr.rc = VERR_INTERNAL_ERROR;
309	GipMapReq.u.Out.HCPhysGip = NIL_RTHCPHYS;
310	GipMapReq.u.Out.pGipR0 = NIL_RTR0PTR;
311	GipMapReq.u.Out.pGipR3 = NULL;
312	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_GIP_MAP, &GipMapReq, SUP_IOCTL_GIP_MAP_SIZE);
313	if (RT_SUCCESS(rc))
314	rc = GipMapReq.Hdr.rc;
315	if (RT_SUCCESS(rc))
316	{
317	AssertRelease(GipMapReq.u.Out.pGipR3->u32Magic == SUPGLOBALINFOPAGE_MAGIC);
318	AssertRelease(GipMapReq.u.Out.pGipR3->u32Version >= SUPGLOBALINFOPAGE_VERSION);
319
320	/*
321	* Set the globals and return success.
322	*/
323	ASMAtomicXchgSize(&g_HCPhysSUPGlobalInfoPage, GipMapReq.u.Out.HCPhysGip);
324	ASMAtomicCmpXchgPtr((void * volatile *)&g_pSUPGlobalInfoPage, GipMapReq.u.Out.pGipR3, NULL);
325	ASMAtomicCmpXchgPtr((void * volatile )&g_pSUPGlobalInfoPageR0, (void )GipMapReq.u.Out.pGipR0, NULL);
326
327	g_u32Cookie = CookieReq.u.Out.u32Cookie;
328	g_u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
329	g_pSession = CookieReq.u.Out.pSession;
330	g_pFunctions = pFuncsReq;
331	if (ppSession)
332	*ppSession = CookieReq.u.Out.pSession;
333	return VINF_SUCCESS;
334	}
335	}
336
337	/* bailout */
338	RTMemFree(pFuncsReq);
339	}
340	else
341	rc = VERR_NO_MEMORY;
342	}
343	else
344	{
345	LogRel(("Support driver version mismatch: SessionVersion=%#x DriverVersion=%#x ClientVersion=%#x MinVersion=%#x\n",
346	CookieReq.u.Out.u32SessionVersion, CookieReq.u.Out.u32DriverVersion, SUPDRV_IOC_VERSION, uMinVersion));
347	rc = VERR_VM_DRIVER_VERSION_MISMATCH;
348	}
349	}
350	else
351	{
352	if (RT_SUCCESS(rc))
353	{
354	rc = CookieReq.Hdr.rc;
355	LogRel(("Support driver version mismatch: DriverVersion=%#x ClientVersion=%#x rc=%Rrc\n",
356	CookieReq.u.Out.u32DriverVersion, SUPDRV_IOC_VERSION, rc));
357	if (rc != VERR_VM_DRIVER_VERSION_MISMATCH)
358	rc = VERR_VM_DRIVER_VERSION_MISMATCH;
359	}
360	else
361	{
362	/* for pre 0x00060000 drivers */
363	LogRel(("Support driver version mismatch: DriverVersion=too-old ClientVersion=%#x\n", SUPDRV_IOC_VERSION));
364	rc = VERR_VM_DRIVER_VERSION_MISMATCH;
365	}
366	}
367
368	suplibOsTerm(&g_supLibData);
369	}
370	g_cInits--;
371
372	return rc;
373	}
374
375	/**
376	* Fake mode init.
377	*/
378	static int supInitFake(PSUPDRVSESSION *ppSession)
379	{
380	Log(("SUP: Fake mode!\n"));
381	static const SUPFUNC s_aFakeFunctions[] =
382	{
383	/* name function */
384	{ "SUPR0AbsIs64bit", 0 },
385	{ "SUPR0Abs64bitKernelCS", 0 },
386	{ "SUPR0Abs64bitKernelSS", 0 },
387	{ "SUPR0Abs64bitKernelDS", 0 },
388	{ "SUPR0AbsKernelCS", 8 },
389	{ "SUPR0AbsKernelSS", 16 },
390	{ "SUPR0AbsKernelDS", 16 },
391	{ "SUPR0AbsKernelES", 16 },
392	{ "SUPR0AbsKernelFS", 24 },
393	{ "SUPR0AbsKernelGS", 32 },
394	{ "SUPR0ComponentRegisterFactory", 0xefeefffd },
395	{ "SUPR0ComponentDeregisterFactory", 0xefeefffe },
396	{ "SUPR0ComponentQueryFactory", 0xefeeffff },
397	{ "SUPR0ObjRegister", 0xefef0000 },
398	{ "SUPR0ObjAddRef", 0xefef0001 },
399	{ "SUPR0ObjAddRefEx", 0xefef0001 },
400	{ "SUPR0ObjRelease", 0xefef0002 },
401	{ "SUPR0ObjVerifyAccess", 0xefef0003 },
402	{ "SUPR0LockMem", 0xefef0004 },
403	{ "SUPR0UnlockMem", 0xefef0005 },
404	{ "SUPR0ContAlloc", 0xefef0006 },
405	{ "SUPR0ContFree", 0xefef0007 },
406	{ "SUPR0MemAlloc", 0xefef0008 },
407	{ "SUPR0MemGetPhys", 0xefef0009 },
408	{ "SUPR0MemFree", 0xefef000a },
409	{ "SUPR0Printf", 0xefef000b },
410	{ "SUPR0GetPagingMode", 0xefef000c },
411	{ "SUPR0EnableVTx", 0xefef000e },
412	{ "RTMemAlloc", 0xefef000f },
413	{ "RTMemAllocZ", 0xefef0010 },
414	{ "RTMemFree", 0xefef0011 },
415	{ "RTR0MemObjAddress", 0xefef0012 },
416	{ "RTR0MemObjAddressR3", 0xefef0013 },
417	{ "RTR0MemObjAllocPage", 0xefef0014 },
418	{ "RTR0MemObjAllocPhysNC", 0xefef0015 },
419	{ "RTR0MemObjAllocLow", 0xefef0016 },
420	{ "RTR0MemObjEnterPhys", 0xefef0017 },
421	{ "RTR0MemObjFree", 0xefef0018 },
422	{ "RTR0MemObjGetPagePhysAddr", 0xefef0019 },
423	{ "RTR0MemObjMapUser", 0xefef001a },
424	{ "RTR0MemObjMapKernel", 0xefef001b },
425	{ "RTR0MemObjMapKernelEx", 0xefef001c },
426	{ "RTMpGetArraySize", 0xefef001c },
427	{ "RTProcSelf", 0xefef001d },
428	{ "RTR0ProcHandleSelf", 0xefef001e },
429	{ "RTSemEventCreate", 0xefef001f },
430	{ "RTSemEventSignal", 0xefef0020 },
431	{ "RTSemEventWait", 0xefef0021 },
432	{ "RTSemEventWaitNoResume", 0xefef0022 },
433	{ "RTSemEventDestroy", 0xefef0023 },
434	{ "RTSemEventMultiCreate", 0xefef0024 },
435	{ "RTSemEventMultiSignal", 0xefef0025 },
436	{ "RTSemEventMultiReset", 0xefef0026 },
437	{ "RTSemEventMultiWait", 0xefef0027 },
438	{ "RTSemEventMultiWaitNoResume", 0xefef0028 },
439	{ "RTSemEventMultiDestroy", 0xefef0029 },
440	{ "RTSemFastMutexCreate", 0xefef002a },
441	{ "RTSemFastMutexDestroy", 0xefef002b },
442	{ "RTSemFastMutexRequest", 0xefef002c },
443	{ "RTSemFastMutexRelease", 0xefef002d },
444	{ "RTSpinlockCreate", 0xefef002e },
445	{ "RTSpinlockDestroy", 0xefef002f },
446	{ "RTSpinlockAcquire", 0xefef0030 },
447	{ "RTSpinlockRelease", 0xefef0031 },
448	{ "RTSpinlockAcquireNoInts", 0xefef0032 },
449	{ "RTSpinlockReleaseNoInts", 0xefef0033 },
450	{ "RTTimeNanoTS", 0xefef0034 },
451	{ "RTTimeMillieTS", 0xefef0035 },
452	{ "RTTimeSystemNanoTS", 0xefef0036 },
453	{ "RTTimeSystemMillieTS", 0xefef0037 },
454	{ "RTThreadNativeSelf", 0xefef0038 },
455	{ "RTThreadSleep", 0xefef0039 },
456	{ "RTThreadYield", 0xefef003a },
457	{ "RTTimerCreate", 0xefef003a },
458	{ "RTTimerCreateEx", 0xefef003a },
459	{ "RTTimerDestroy", 0xefef003a },
460	{ "RTTimerStart", 0xefef003a },
461	{ "RTTimerStop", 0xefef003a },
462	{ "RTTimerChangeInterval", 0xefef003a },
463	{ "RTTimerGetSystemGranularity", 0xefef003a },
464	{ "RTTimerRequestSystemGranularity", 0xefef003a },
465	{ "RTTimerReleaseSystemGranularity", 0xefef003a },
466	{ "RTTimerCanDoHighResolution", 0xefef003a },
467	{ "RTLogDefaultInstance", 0xefef003b },
468	{ "RTLogRelDefaultInstance", 0xefef003c },
469	{ "RTLogSetDefaultInstanceThread", 0xefef003d },
470	{ "RTLogLogger", 0xefef003e },
471	{ "RTLogLoggerEx", 0xefef003f },
472	{ "RTLogLoggerExV", 0xefef0040 },
473	{ "RTAssertMsg1", 0xefef0041 },
474	{ "RTAssertMsg2", 0xefef0042 },
475	{ "RTAssertMsg2V", 0xefef0043 },
476	{ "SUPR0QueryVTCaps", 0xefef0044 },
477	};
478
479	/* fake r0 functions. */
480	g_pFunctions = (PSUPQUERYFUNCS)RTMemAllocZ(SUP_IOCTL_QUERY_FUNCS_SIZE(RT_ELEMENTS(s_aFakeFunctions)));
481	if (g_pFunctions)
482	{
483	g_pFunctions->u.Out.cFunctions = RT_ELEMENTS(s_aFakeFunctions);
484	memcpy(&g_pFunctions->u.Out.aFunctions[0], &s_aFakeFunctions[0], sizeof(s_aFakeFunctions));
485	g_pSession = (PSUPDRVSESSION)(void *)g_pFunctions;
486	if (ppSession)
487	*ppSession = g_pSession;
488
489	/* fake the GIP. */
490	g_pSUPGlobalInfoPage = (PSUPGLOBALINFOPAGE)RTMemPageAllocZ(PAGE_SIZE);
491	if (g_pSUPGlobalInfoPage)
492	{
493	g_pSUPGlobalInfoPageR0 = g_pSUPGlobalInfoPage;
494	g_HCPhysSUPGlobalInfoPage = NIL_RTHCPHYS & ~(RTHCPHYS)PAGE_OFFSET_MASK;
495	/* the page is supposed to be invalid, so don't set the magic. */
496	return VINF_SUCCESS;
497	}
498
499	RTMemFree(g_pFunctions);
500	g_pFunctions = NULL;
501	}
502	return VERR_NO_MEMORY;
503	}
504
505
506	SUPR3DECL(int) SUPR3Term(bool fForced)
507	{
508	/*
509	* Verify state.
510	*/
511	AssertMsg(g_cInits > 0, ("SUPR3Term() is called before SUPR3Init()!\n"));
512	if (g_cInits == 0)
513	return VERR_WRONG_ORDER;
514	if (g_cInits == 1 \|\| fForced)
515	{
516	/*
517	* NULL the GIP pointer.
518	*/
519	if (g_pSUPGlobalInfoPage)
520	{
521	ASMAtomicWriteNullPtr((void * volatile *)&g_pSUPGlobalInfoPage);
522	ASMAtomicWriteNullPtr((void * volatile *)&g_pSUPGlobalInfoPageR0);
523	ASMAtomicWriteSize(&g_HCPhysSUPGlobalInfoPage, NIL_RTHCPHYS);
524	/* just a little safe guard against threads using the page. */
525	RTThreadSleep(50);
526	}
527
528	/*
529	* Close the support driver.
530	*/
531	int rc = suplibOsTerm(&g_supLibData);
532	if (rc)
533	return rc;
534
535	g_u32Cookie = 0;
536	g_u32SessionCookie = 0;
537	g_cInits = 0;
538	}
539	else
540	g_cInits--;
541
542	return 0;
543	}
544
545
546	SUPR3DECL(SUPPAGINGMODE) SUPR3GetPagingMode(void)
547	{
548	/* fake */
549	if (RT_UNLIKELY(g_u32FakeMode))
550	#ifdef RT_ARCH_AMD64
551	return SUPPAGINGMODE_AMD64_GLOBAL_NX;
552	#else
553	return SUPPAGINGMODE_32_BIT_GLOBAL;
554	#endif
555
556	/*
557	* Issue IOCtl to the SUPDRV kernel module.
558	*/
559	SUPGETPAGINGMODE Req;
560	Req.Hdr.u32Cookie = g_u32Cookie;
561	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
562	Req.Hdr.cbIn = SUP_IOCTL_GET_PAGING_MODE_SIZE_IN;
563	Req.Hdr.cbOut = SUP_IOCTL_GET_PAGING_MODE_SIZE_OUT;
564	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
565	Req.Hdr.rc = VERR_INTERNAL_ERROR;
566	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_GET_PAGING_MODE, &Req, SUP_IOCTL_GET_PAGING_MODE_SIZE);
567	if ( RT_FAILURE(rc)
568	\|\| RT_FAILURE(Req.Hdr.rc))
569	{
570	LogRel(("SUPR3GetPagingMode: %Rrc %Rrc\n", rc, Req.Hdr.rc));
571	Req.u.Out.enmMode = SUPPAGINGMODE_INVALID;
572	}
573
574	return Req.u.Out.enmMode;
575	}
576
577
578	/**
579	* For later.
580	*/
581	static int supCallVMMR0ExFake(PVMR0 pVMR0, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
582	{
583	AssertMsgFailed(("%d\n", uOperation));
584	return VERR_NOT_SUPPORTED;
585	}
586
587
588	SUPR3DECL(int) SUPR3CallVMMR0Fast(PVMR0 pVMR0, unsigned uOperation, VMCPUID idCpu)
589	{
590	if (RT_LIKELY(uOperation == SUP_VMMR0_DO_RAW_RUN))
591	return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_RAW_RUN, idCpu);
592	if (RT_LIKELY(uOperation == SUP_VMMR0_DO_HWACC_RUN))
593	return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_HWACC_RUN, idCpu);
594	if (RT_LIKELY(uOperation == SUP_VMMR0_DO_NOP))
595	return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_NOP, idCpu);
596
597	AssertMsgFailed(("%#x\n", uOperation));
598	return VERR_INTERNAL_ERROR;
599	}
600
601
602	SUPR3DECL(int) SUPR3CallVMMR0Ex(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
603	{
604	/*
605	* The following operations don't belong here.
606	*/
607	AssertMsgReturn( uOperation != SUP_VMMR0_DO_RAW_RUN
608	&& uOperation != SUP_VMMR0_DO_HWACC_RUN
609	&& uOperation != SUP_VMMR0_DO_NOP,
610	("%#x\n", uOperation),
611	VERR_INTERNAL_ERROR);
612
613	/* fake */
614	if (RT_UNLIKELY(g_u32FakeMode))
615	return supCallVMMR0ExFake(pVMR0, uOperation, u64Arg, pReqHdr);
616
617	int rc;
618	if (!pReqHdr)
619	{
620	/* no data. */
621	SUPCALLVMMR0 Req;
622	Req.Hdr.u32Cookie = g_u32Cookie;
623	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
624	Req.Hdr.cbIn = SUP_IOCTL_CALL_VMMR0_SIZE_IN(0);
625	Req.Hdr.cbOut = SUP_IOCTL_CALL_VMMR0_SIZE_OUT(0);
626	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
627	Req.Hdr.rc = VERR_INTERNAL_ERROR;
628	Req.u.In.pVMR0 = pVMR0;
629	Req.u.In.idCpu = idCpu;
630	Req.u.In.uOperation = uOperation;
631	Req.u.In.u64Arg = u64Arg;
632	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0(0), &Req, SUP_IOCTL_CALL_VMMR0_SIZE(0));
633	if (RT_SUCCESS(rc))
634	rc = Req.Hdr.rc;
635	}
636	else if (SUP_IOCTL_CALL_VMMR0_SIZE(pReqHdr->cbReq) < _4K) /* FreeBSD won't copy more than 4K. */
637	{
638	AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
639	AssertReturn(pReqHdr->u32Magic == SUPVMMR0REQHDR_MAGIC, VERR_INVALID_MAGIC);
640	const size_t cbReq = pReqHdr->cbReq;
641
642	PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)alloca(SUP_IOCTL_CALL_VMMR0_SIZE(cbReq));
643	pReq->Hdr.u32Cookie = g_u32Cookie;
644	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
645	pReq->Hdr.cbIn = SUP_IOCTL_CALL_VMMR0_SIZE_IN(cbReq);
646	pReq->Hdr.cbOut = SUP_IOCTL_CALL_VMMR0_SIZE_OUT(cbReq);
647	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
648	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
649	pReq->u.In.pVMR0 = pVMR0;
650	pReq->u.In.idCpu = idCpu;
651	pReq->u.In.uOperation = uOperation;
652	pReq->u.In.u64Arg = u64Arg;
653	memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
654	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0(cbReq), pReq, SUP_IOCTL_CALL_VMMR0_SIZE(cbReq));
655	if (RT_SUCCESS(rc))
656	rc = pReq->Hdr.rc;
657	memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
658	}
659	else /** @todo may have to remove the size limits one this request... */
660	AssertMsgFailedReturn(("cbReq=%#x\n", pReqHdr->cbReq), VERR_INTERNAL_ERROR);
661	return rc;
662	}
663
664
665	SUPR3DECL(int) SUPR3CallVMMR0(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, void *pvArg)
666	{
667	/*
668	* The following operations don't belong here.
669	*/
670	AssertMsgReturn( uOperation != SUP_VMMR0_DO_RAW_RUN
671	&& uOperation != SUP_VMMR0_DO_HWACC_RUN
672	&& uOperation != SUP_VMMR0_DO_NOP,
673	("%#x\n", uOperation),
674	VERR_INTERNAL_ERROR);
675	return SUPR3CallVMMR0Ex(pVMR0, idCpu, uOperation, (uintptr_t)pvArg, NULL);
676	}
677
678
679	SUPR3DECL(int) SUPR3SetVMForFastIOCtl(PVMR0 pVMR0)
680	{
681	if (RT_UNLIKELY(g_u32FakeMode))
682	return VINF_SUCCESS;
683
684	SUPSETVMFORFAST Req;
685	Req.Hdr.u32Cookie = g_u32Cookie;
686	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
687	Req.Hdr.cbIn = SUP_IOCTL_SET_VM_FOR_FAST_SIZE_IN;
688	Req.Hdr.cbOut = SUP_IOCTL_SET_VM_FOR_FAST_SIZE_OUT;
689	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
690	Req.Hdr.rc = VERR_INTERNAL_ERROR;
691	Req.u.In.pVMR0 = pVMR0;
692	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_SET_VM_FOR_FAST, &Req, SUP_IOCTL_SET_VM_FOR_FAST_SIZE);
693	if (RT_SUCCESS(rc))
694	rc = Req.Hdr.rc;
695	return rc;
696	}
697
698
699	SUPR3DECL(int) SUPR3CallR0Service(const char *pszService, size_t cchService, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr)
700	{
701	AssertReturn(cchService < RT_SIZEOFMEMB(SUPCALLSERVICE, u.In.szName), VERR_INVALID_PARAMETER);
702	Assert(strlen(pszService) == cchService);
703
704	/* fake */
705	if (RT_UNLIKELY(g_u32FakeMode))
706	return VERR_NOT_SUPPORTED;
707
708	int rc;
709	if (!pReqHdr)
710	{
711	/* no data. */
712	SUPCALLSERVICE Req;
713	Req.Hdr.u32Cookie = g_u32Cookie;
714	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
715	Req.Hdr.cbIn = SUP_IOCTL_CALL_SERVICE_SIZE_IN(0);
716	Req.Hdr.cbOut = SUP_IOCTL_CALL_SERVICE_SIZE_OUT(0);
717	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
718	Req.Hdr.rc = VERR_INTERNAL_ERROR;
719	memcpy(Req.u.In.szName, pszService, cchService);
720	Req.u.In.szName[cchService] = '\0';
721	Req.u.In.uOperation = uOperation;
722	Req.u.In.u64Arg = u64Arg;
723	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_SERVICE(0), &Req, SUP_IOCTL_CALL_SERVICE_SIZE(0));
724	if (RT_SUCCESS(rc))
725	rc = Req.Hdr.rc;
726	}
727	else if (SUP_IOCTL_CALL_SERVICE_SIZE(pReqHdr->cbReq) < _4K) /* FreeBSD won't copy more than 4K. */
728	{
729	AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
730	AssertReturn(pReqHdr->u32Magic == SUPR0SERVICEREQHDR_MAGIC, VERR_INVALID_MAGIC);
731	const size_t cbReq = pReqHdr->cbReq;
732
733	PSUPCALLSERVICE pReq = (PSUPCALLSERVICE)alloca(SUP_IOCTL_CALL_SERVICE_SIZE(cbReq));
734	pReq->Hdr.u32Cookie = g_u32Cookie;
735	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
736	pReq->Hdr.cbIn = SUP_IOCTL_CALL_SERVICE_SIZE_IN(cbReq);
737	pReq->Hdr.cbOut = SUP_IOCTL_CALL_SERVICE_SIZE_OUT(cbReq);
738	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
739	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
740	memcpy(pReq->u.In.szName, pszService, cchService);
741	pReq->u.In.szName[cchService] = '\0';
742	pReq->u.In.uOperation = uOperation;
743	pReq->u.In.u64Arg = u64Arg;
744	memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
745	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_SERVICE(cbReq), pReq, SUP_IOCTL_CALL_SERVICE_SIZE(cbReq));
746	if (RT_SUCCESS(rc))
747	rc = pReq->Hdr.rc;
748	memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
749	}
750	else /** @todo may have to remove the size limits one this request... */
751	AssertMsgFailedReturn(("cbReq=%#x\n", pReqHdr->cbReq), VERR_INTERNAL_ERROR);
752	return rc;
753	}
754
755
756	/**
757	* Worker for the SUPR3Logger* APIs.
758	*
759	* @returns VBox status code.
760	* @param enmWhich Which logger.
761	* @param fWhat What to do with the logger.
762	* @param pszFlags The flags settings.
763	* @param pszGroups The groups settings.
764	* @param pszDest The destionation specificier.
765	*/
766	static int supR3LoggerSettings(SUPLOGGER enmWhich, uint32_t fWhat, const char pszFlags, const char pszGroups, const char *pszDest)
767	{
768	uint32_t const cchFlags = pszFlags ? (uint32_t)strlen(pszFlags) : 0;
769	uint32_t const cchGroups = pszGroups ? (uint32_t)strlen(pszGroups) : 0;
770	uint32_t const cchDest = pszDest ? (uint32_t)strlen(pszDest) : 0;
771	uint32_t const cbStrTab = cchFlags + !!cchFlags
772	+ cchGroups + !!cchGroups
773	+ cchDest + !!cchDest
774	+ (!cchFlags && !cchGroups && !cchDest);
775
776	PSUPLOGGERSETTINGS pReq = (PSUPLOGGERSETTINGS)alloca(SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab));
777	pReq->Hdr.u32Cookie = g_u32Cookie;
778	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
779	pReq->Hdr.cbIn = SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(cbStrTab);
780	pReq->Hdr.cbOut = SUP_IOCTL_LOGGER_SETTINGS_SIZE_OUT;
781	pReq->Hdr.fFlags= SUPREQHDR_FLAGS_DEFAULT;
782	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
783	switch (enmWhich)
784	{
785	case SUPLOGGER_DEBUG: pReq->u.In.fWhich = SUPLOGGERSETTINGS_WHICH_DEBUG; break;
786	case SUPLOGGER_RELEASE: pReq->u.In.fWhich = SUPLOGGERSETTINGS_WHICH_RELEASE; break;
787	default:
788	return VERR_INVALID_PARAMETER;
789	}
790	pReq->u.In.fWhat = fWhat;
791
792	uint32_t off = 0;
793	if (cchFlags)
794	{
795	pReq->u.In.offFlags = off;
796	memcpy(&pReq->u.In.szStrings[off], pszFlags, cchFlags + 1);
797	off += cchFlags + 1;
798	}
799	else
800	pReq->u.In.offFlags = cbStrTab - 1;
801
802	if (cchGroups)
803	{
804	pReq->u.In.offGroups = off;
805	memcpy(&pReq->u.In.szStrings[off], pszGroups, cchGroups + 1);
806	off += cchGroups + 1;
807	}
808	else
809	pReq->u.In.offGroups = cbStrTab - 1;
810
811	if (cchDest)
812	{
813	pReq->u.In.offDestination = off;
814	memcpy(&pReq->u.In.szStrings[off], pszDest, cchDest + 1);
815	off += cchDest + 1;
816	}
817	else
818	pReq->u.In.offDestination = cbStrTab - 1;
819
820	if (!off)
821	{
822	pReq->u.In.szStrings[0] = '\0';
823	off++;
824	}
825	Assert(off == cbStrTab);
826	Assert(pReq->u.In.szStrings[cbStrTab - 1] == '\0');
827
828
829	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOGGER_SETTINGS(cbStrTab), pReq, SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab));
830	if (RT_SUCCESS(rc))
831	rc = pReq->Hdr.rc;
832	return rc;
833	}
834
835
836	SUPR3DECL(int) SUPR3LoggerSettings(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest)
837	{
838	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_SETTINGS, pszFlags, pszGroups, pszDest);
839	}
840
841
842	SUPR3DECL(int) SUPR3LoggerCreate(SUPLOGGER enmWhich, const char pszFlags, const char pszGroups, const char *pszDest)
843	{
844	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_CREATE, pszFlags, pszGroups, pszDest);
845	}
846
847
848	SUPR3DECL(int) SUPR3LoggerDestroy(SUPLOGGER enmWhich)
849	{
850	return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_DESTROY, NULL, NULL, NULL);
851	}
852
853
854	SUPR3DECL(int) SUPR3PageAlloc(size_t cPages, void **ppvPages)
855	{
856	/*
857	* Validate.
858	*/
859	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
860	*ppvPages = NULL;
861	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
862
863	/*
864	* Call OS specific worker.
865	*/
866	return suplibOsPageAlloc(&g_supLibData, cPages, ppvPages);
867	}
868
869
870	SUPR3DECL(int) SUPR3PageFree(void *pvPages, size_t cPages)
871	{
872	/*
873	* Validate.
874	*/
875	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
876	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
877
878	/*
879	* Call OS specific worker.
880	*/
881	return suplibOsPageFree(&g_supLibData, pvPages, cPages);
882	}
883
884
885	/**
886	* Locks down the physical memory backing a virtual memory
887	* range in the current process.
888	*
889	* @returns VBox status code.
890	* @param pvStart Start of virtual memory range.
891	* Must be page aligned.
892	* @param cPages Number of pages.
893	* @param paPages Where to store the physical page addresses returned.
894	* On entry this will point to an array of with cbMemory >> PAGE_SHIFT entries.
895	*/
896	SUPR3DECL(int) supR3PageLock(void *pvStart, size_t cPages, PSUPPAGE paPages)
897	{
898	/*
899	* Validate.
900	*/
901	AssertPtr(pvStart);
902	AssertMsg(RT_ALIGN_P(pvStart, PAGE_SIZE) == pvStart, ("pvStart (%p) must be page aligned\n", pvStart));
903	AssertPtr(paPages);
904
905	/* fake */
906	if (RT_UNLIKELY(g_u32FakeMode))
907	{
908	RTHCPHYS Phys = (uintptr_t)pvStart + PAGE_SIZE * 1024;
909	size_t iPage = cPages;
910	while (iPage-- > 0)
911	paPages[iPage].Phys = Phys + (iPage << PAGE_SHIFT);
912	return VINF_SUCCESS;
913	}
914
915	/*
916	* Issue IOCtl to the SUPDRV kernel module.
917	*/
918	int rc;
919	PSUPPAGELOCK pReq = (PSUPPAGELOCK)RTMemTmpAllocZ(SUP_IOCTL_PAGE_LOCK_SIZE(cPages));
920	if (RT_LIKELY(pReq))
921	{
922	pReq->Hdr.u32Cookie = g_u32Cookie;
923	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
924	pReq->Hdr.cbIn = SUP_IOCTL_PAGE_LOCK_SIZE_IN;
925	pReq->Hdr.cbOut = SUP_IOCTL_PAGE_LOCK_SIZE_OUT(cPages);
926	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
927	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
928	pReq->u.In.pvR3 = pvStart;
929	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
930	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_LOCK, pReq, SUP_IOCTL_PAGE_LOCK_SIZE(cPages));
931	if (RT_SUCCESS(rc))
932	rc = pReq->Hdr.rc;
933	if (RT_SUCCESS(rc))
934	{
935	for (uint32_t iPage = 0; iPage < cPages; iPage++)
936	{
937	paPages[iPage].uReserved = 0;
938	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
939	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
940	}
941	}
942	RTMemTmpFree(pReq);
943	}
944	else
945	rc = VERR_NO_TMP_MEMORY;
946
947	return rc;
948	}
949
950
951	/**
952	* Releases locked down pages.
953	*
954	* @returns VBox status code.
955	* @param pvStart Start of virtual memory range previously locked
956	* down by SUPPageLock().
957	*/
958	SUPR3DECL(int) supR3PageUnlock(void *pvStart)
959	{
960	/*
961	* Validate.
962	*/
963	AssertPtr(pvStart);
964	AssertMsg(RT_ALIGN_P(pvStart, PAGE_SIZE) == pvStart, ("pvStart (%p) must be page aligned\n", pvStart));
965
966	/* fake */
967	if (RT_UNLIKELY(g_u32FakeMode))
968	return VINF_SUCCESS;
969
970	/*
971	* Issue IOCtl to the SUPDRV kernel module.
972	*/
973	SUPPAGEUNLOCK Req;
974	Req.Hdr.u32Cookie = g_u32Cookie;
975	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
976	Req.Hdr.cbIn = SUP_IOCTL_PAGE_UNLOCK_SIZE_IN;
977	Req.Hdr.cbOut = SUP_IOCTL_PAGE_UNLOCK_SIZE_OUT;
978	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
979	Req.Hdr.rc = VERR_INTERNAL_ERROR;
980	Req.u.In.pvR3 = pvStart;
981	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_UNLOCK, &Req, SUP_IOCTL_PAGE_UNLOCK_SIZE);
982	if (RT_SUCCESS(rc))
983	rc = Req.Hdr.rc;
984	return rc;
985	}
986
987
988	/**
989	* Fallback for SUPR3PageAllocEx on systems where RTR0MemObjPhysAllocNC isn't
990	* supported.
991	*/
992	static int supPagePageAllocNoKernelFallback(size_t cPages, void **ppvPages, PSUPPAGE paPages)
993	{
994	int rc = suplibOsPageAlloc(&g_supLibData, cPages, ppvPages);
995	if (RT_SUCCESS(rc))
996	{
997	if (!paPages)
998	paPages = (PSUPPAGE)alloca(sizeof(paPages[0]) * cPages);
999	rc = supR3PageLock(*ppvPages, cPages, paPages);
1000	if (RT_FAILURE(rc))
1001	suplibOsPageFree(&g_supLibData, *ppvPages, cPages);
1002	}
1003	return rc;
1004	}
1005
1006
1007	SUPR3DECL(int) SUPR3PageAllocEx(size_t cPages, uint32_t fFlags, void **ppvPages, PRTR0PTR pR0Ptr, PSUPPAGE paPages)
1008	{
1009	/*
1010	* Validate.
1011	*/
1012	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
1013	*ppvPages = NULL;
1014	AssertPtrNullReturn(pR0Ptr, VERR_INVALID_POINTER);
1015	if (pR0Ptr)
1016	*pR0Ptr = NIL_RTR0PTR;
1017	AssertPtrNullReturn(paPages, VERR_INVALID_POINTER);
1018	AssertMsgReturn(cPages > 0 && cPages <= VBOX_MAX_ALLOC_PAGE_COUNT, ("cPages=%zu\n", cPages), VERR_PAGE_COUNT_OUT_OF_RANGE);
1019
1020	/* fake */
1021	if (RT_UNLIKELY(g_u32FakeMode))
1022	{
1023	void pv = RTMemPageAllocZ(cPages PAGE_SIZE);
1024	if (!pv)
1025	return VERR_NO_MEMORY;
1026	*ppvPages = pv;
1027	if (pR0Ptr)
1028	*pR0Ptr = (RTR0PTR)pv;
1029	if (paPages)
1030	for (size_t iPage = 0; iPage < cPages; iPage++)
1031	{
1032	paPages[iPage].uReserved = 0;
1033	paPages[iPage].Phys = (iPage + 4321) << PAGE_SHIFT;
1034	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1035	}
1036	return VINF_SUCCESS;
1037	}
1038
1039	/*
1040	* Use fallback for non-R0 mapping?
1041	*/
1042	if ( !pR0Ptr
1043	&& !g_fSupportsPageAllocNoKernel)
1044	return supPagePageAllocNoKernelFallback(cPages, ppvPages, paPages);
1045
1046	/*
1047	* Issue IOCtl to the SUPDRV kernel module.
1048	*/
1049	int rc;
1050	PSUPPAGEALLOCEX pReq = (PSUPPAGEALLOCEX)RTMemTmpAllocZ(SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages));
1051	if (pReq)
1052	{
1053	pReq->Hdr.u32Cookie = g_u32Cookie;
1054	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1055	pReq->Hdr.cbIn = SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN;
1056	pReq->Hdr.cbOut = SUP_IOCTL_PAGE_ALLOC_EX_SIZE_OUT(cPages);
1057	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
1058	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
1059	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
1060	pReq->u.In.fKernelMapping = pR0Ptr != NULL;
1061	pReq->u.In.fUserMapping = true;
1062	pReq->u.In.fReserved0 = false;
1063	pReq->u.In.fReserved1 = false;
1064	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_ALLOC_EX, pReq, SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages));
1065	if (RT_SUCCESS(rc))
1066	{
1067	rc = pReq->Hdr.rc;
1068	if (RT_SUCCESS(rc))
1069	{
1070	*ppvPages = pReq->u.Out.pvR3;
1071	if (pR0Ptr)
1072	*pR0Ptr = pReq->u.Out.pvR0;
1073	if (paPages)
1074	for (size_t iPage = 0; iPage < cPages; iPage++)
1075	{
1076	paPages[iPage].uReserved = 0;
1077	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
1078	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1079	}
1080	#ifdef RT_OS_DARWIN /* HACK ALERT! */
1081	supR3TouchPages(pReq->u.Out.pvR3, cPages);
1082	#endif
1083	}
1084	else if ( rc == VERR_NOT_SUPPORTED
1085	&& !pR0Ptr)
1086	{
1087	g_fSupportsPageAllocNoKernel = false;
1088	rc = supPagePageAllocNoKernelFallback(cPages, ppvPages, paPages);
1089	}
1090	}
1091
1092	RTMemTmpFree(pReq);
1093	}
1094	else
1095	rc = VERR_NO_TMP_MEMORY;
1096	return rc;
1097
1098	}
1099
1100
1101	SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr)
1102	{
1103	/*
1104	* Validate.
1105	*/
1106	AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
1107	AssertPtrReturn(pR0Ptr, VERR_INVALID_POINTER);
1108	Assert(!(off & PAGE_OFFSET_MASK));
1109	Assert(!(cb & PAGE_OFFSET_MASK) && cb);
1110	Assert(!fFlags);
1111	*pR0Ptr = NIL_RTR0PTR;
1112
1113	/* fake */
1114	if (RT_UNLIKELY(g_u32FakeMode))
1115	return VERR_NOT_SUPPORTED;
1116
1117	/*
1118	* Issue IOCtl to the SUPDRV kernel module.
1119	*/
1120	SUPPAGEMAPKERNEL Req;
1121	Req.Hdr.u32Cookie = g_u32Cookie;
1122	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1123	Req.Hdr.cbIn = SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_IN;
1124	Req.Hdr.cbOut = SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_OUT;
1125	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1126	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1127	Req.u.In.pvR3 = pvR3;
1128	Req.u.In.offSub = off;
1129	Req.u.In.cbSub = cb;
1130	Req.u.In.fFlags = fFlags;
1131	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_MAP_KERNEL, &Req, SUP_IOCTL_PAGE_MAP_KERNEL_SIZE);
1132	if (RT_SUCCESS(rc))
1133	rc = Req.Hdr.rc;
1134	if (RT_SUCCESS(rc))
1135	*pR0Ptr = Req.u.Out.pvR0;
1136	return rc;
1137	}
1138
1139
1140	SUPR3DECL(int) SUPR3PageProtect(void *pvR3, RTR0PTR R0Ptr, uint32_t off, uint32_t cb, uint32_t fProt)
1141	{
1142	/*
1143	* Validate.
1144	*/
1145	AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
1146	Assert(!(off & PAGE_OFFSET_MASK));
1147	Assert(!(cb & PAGE_OFFSET_MASK) && cb);
1148	AssertReturn(!(fProt & ~(RTMEM_PROT_NONE \| RTMEM_PROT_READ \| RTMEM_PROT_WRITE \| RTMEM_PROT_EXEC)), VERR_INVALID_PARAMETER);
1149
1150	/* fake */
1151	if (RT_UNLIKELY(g_u32FakeMode))
1152	return RTMemProtect((uint8_t *)pvR3 + off, cb, fProt);
1153
1154	/*
1155	* Some OSes can do this from ring-3, so try that before we
1156	* issue the IOCtl to the SUPDRV kernel module.
1157	* (Yea, this isn't very nice, but just try get the job done for now.)
1158	*/
1159	#if !defined(RT_OS_SOLARIS)
1160	RTMemProtect((uint8_t *)pvR3 + off, cb, fProt);
1161	#endif
1162
1163	SUPPAGEPROTECT Req;
1164	Req.Hdr.u32Cookie = g_u32Cookie;
1165	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1166	Req.Hdr.cbIn = SUP_IOCTL_PAGE_PROTECT_SIZE_IN;
1167	Req.Hdr.cbOut = SUP_IOCTL_PAGE_PROTECT_SIZE_OUT;
1168	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1169	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1170	Req.u.In.pvR3 = pvR3;
1171	Req.u.In.pvR0 = R0Ptr;
1172	Req.u.In.offSub = off;
1173	Req.u.In.cbSub = cb;
1174	Req.u.In.fProt = fProt;
1175	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_PROTECT, &Req, SUP_IOCTL_PAGE_PROTECT_SIZE);
1176	if (RT_SUCCESS(rc))
1177	rc = Req.Hdr.rc;
1178	return rc;
1179	}
1180
1181
1182	SUPR3DECL(int) SUPR3PageFreeEx(void *pvPages, size_t cPages)
1183	{
1184	/*
1185	* Validate.
1186	*/
1187	AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
1188	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1189
1190	/* fake */
1191	if (RT_UNLIKELY(g_u32FakeMode))
1192	{
1193	RTMemPageFree(pvPages, cPages * PAGE_SIZE);
1194	return VINF_SUCCESS;
1195	}
1196
1197	/*
1198	* Try normal free first, then if it fails check if we're using the fallback
1199	* for the allocations without kernel mappings and attempt unlocking it.
1200	*/
1201	NOREF(cPages);
1202	SUPPAGEFREE Req;
1203	Req.Hdr.u32Cookie = g_u32Cookie;
1204	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1205	Req.Hdr.cbIn = SUP_IOCTL_PAGE_FREE_SIZE_IN;
1206	Req.Hdr.cbOut = SUP_IOCTL_PAGE_FREE_SIZE_OUT;
1207	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1208	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1209	Req.u.In.pvR3 = pvPages;
1210	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_FREE, &Req, SUP_IOCTL_PAGE_FREE_SIZE);
1211	if (RT_SUCCESS(rc))
1212	{
1213	rc = Req.Hdr.rc;
1214	if ( rc == VERR_INVALID_PARAMETER
1215	&& !g_fSupportsPageAllocNoKernel)
1216	{
1217	int rc2 = supR3PageUnlock(pvPages);
1218	if (RT_SUCCESS(rc2))
1219	rc = suplibOsPageFree(&g_supLibData, pvPages, cPages);
1220	}
1221	}
1222	return rc;
1223	}
1224
1225
1226	SUPR3DECL(void *) SUPR3ContAlloc(size_t cPages, PRTR0PTR pR0Ptr, PRTHCPHYS pHCPhys)
1227	{
1228	/*
1229	* Validate.
1230	*/
1231	AssertPtrReturn(pHCPhys, NULL);
1232	*pHCPhys = NIL_RTHCPHYS;
1233	AssertPtrNullReturn(pR0Ptr, NULL);
1234	if (pR0Ptr)
1235	*pR0Ptr = NIL_RTR0PTR;
1236	AssertPtrNullReturn(pHCPhys, NULL);
1237	AssertMsgReturn(cPages > 0 && cPages < 256, ("cPages=%d must be > 0 and < 256\n", cPages), NULL);
1238
1239	/* fake */
1240	if (RT_UNLIKELY(g_u32FakeMode))
1241	{
1242	void pv = RTMemPageAllocZ(cPages PAGE_SIZE);
1243	if (pR0Ptr)
1244	*pR0Ptr = (RTR0PTR)pv;
1245	if (pHCPhys)
1246	pHCPhys = (uintptr_t)pv + (PAGE_SHIFT 1024);
1247	return pv;
1248	}
1249
1250	/*
1251	* Issue IOCtl to the SUPDRV kernel module.
1252	*/
1253	SUPCONTALLOC Req;
1254	Req.Hdr.u32Cookie = g_u32Cookie;
1255	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1256	Req.Hdr.cbIn = SUP_IOCTL_CONT_ALLOC_SIZE_IN;
1257	Req.Hdr.cbOut = SUP_IOCTL_CONT_ALLOC_SIZE_OUT;
1258	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1259	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1260	Req.u.In.cPages = (uint32_t)cPages;
1261	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CONT_ALLOC, &Req, SUP_IOCTL_CONT_ALLOC_SIZE);
1262	if ( RT_SUCCESS(rc)
1263	&& RT_SUCCESS(Req.Hdr.rc))
1264	{
1265	*pHCPhys = Req.u.Out.HCPhys;
1266	if (pR0Ptr)
1267	*pR0Ptr = Req.u.Out.pvR0;
1268	#ifdef RT_OS_DARWIN /* HACK ALERT! */
1269	supR3TouchPages(Req.u.Out.pvR3, cPages);
1270	#endif
1271	return Req.u.Out.pvR3;
1272	}
1273
1274	return NULL;
1275	}
1276
1277
1278	SUPR3DECL(int) SUPR3ContFree(void *pv, size_t cPages)
1279	{
1280	/*
1281	* Validate.
1282	*/
1283	if (!pv)
1284	return VINF_SUCCESS;
1285	AssertPtrReturn(pv, VERR_INVALID_POINTER);
1286	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1287
1288	/* fake */
1289	if (RT_UNLIKELY(g_u32FakeMode))
1290	{
1291	RTMemPageFree(pv, cPages * PAGE_SIZE);
1292	return VINF_SUCCESS;
1293	}
1294
1295	/*
1296	* Issue IOCtl to the SUPDRV kernel module.
1297	*/
1298	SUPCONTFREE Req;
1299	Req.Hdr.u32Cookie = g_u32Cookie;
1300	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1301	Req.Hdr.cbIn = SUP_IOCTL_CONT_FREE_SIZE_IN;
1302	Req.Hdr.cbOut = SUP_IOCTL_CONT_FREE_SIZE_OUT;
1303	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1304	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1305	Req.u.In.pvR3 = pv;
1306	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CONT_FREE, &Req, SUP_IOCTL_CONT_FREE_SIZE);
1307	if (RT_SUCCESS(rc))
1308	rc = Req.Hdr.rc;
1309	return rc;
1310	}
1311
1312
1313	SUPR3DECL(int) SUPR3LowAlloc(size_t cPages, void **ppvPages, PRTR0PTR ppvPagesR0, PSUPPAGE paPages)
1314	{
1315	/*
1316	* Validate.
1317	*/
1318	AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
1319	*ppvPages = NULL;
1320	AssertPtrReturn(paPages, VERR_INVALID_POINTER);
1321	AssertMsgReturn(cPages > 0 && cPages < 256, ("cPages=%d must be > 0 and < 256\n", cPages), VERR_PAGE_COUNT_OUT_OF_RANGE);
1322
1323	/* fake */
1324	if (RT_UNLIKELY(g_u32FakeMode))
1325	{
1326	ppvPages = RTMemPageAllocZ((size_t)cPages PAGE_SIZE);
1327	if (!*ppvPages)
1328	return VERR_NO_LOW_MEMORY;
1329
1330	/* fake physical addresses. */
1331	RTHCPHYS Phys = (uintptr_t)ppvPages + PAGE_SIZE 1024;
1332	size_t iPage = cPages;
1333	while (iPage-- > 0)
1334	paPages[iPage].Phys = Phys + (iPage << PAGE_SHIFT);
1335	return VINF_SUCCESS;
1336	}
1337
1338	/*
1339	* Issue IOCtl to the SUPDRV kernel module.
1340	*/
1341	int rc;
1342	PSUPLOWALLOC pReq = (PSUPLOWALLOC)RTMemTmpAllocZ(SUP_IOCTL_LOW_ALLOC_SIZE(cPages));
1343	if (pReq)
1344	{
1345	pReq->Hdr.u32Cookie = g_u32Cookie;
1346	pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1347	pReq->Hdr.cbIn = SUP_IOCTL_LOW_ALLOC_SIZE_IN;
1348	pReq->Hdr.cbOut = SUP_IOCTL_LOW_ALLOC_SIZE_OUT(cPages);
1349	pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_OUT;
1350	pReq->Hdr.rc = VERR_INTERNAL_ERROR;
1351	pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
1352	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOW_ALLOC, pReq, SUP_IOCTL_LOW_ALLOC_SIZE(cPages));
1353	if (RT_SUCCESS(rc))
1354	rc = pReq->Hdr.rc;
1355	if (RT_SUCCESS(rc))
1356	{
1357	*ppvPages = pReq->u.Out.pvR3;
1358	if (ppvPagesR0)
1359	*ppvPagesR0 = pReq->u.Out.pvR0;
1360	if (paPages)
1361	for (size_t iPage = 0; iPage < cPages; iPage++)
1362	{
1363	paPages[iPage].uReserved = 0;
1364	paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
1365	Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1366	Assert(paPages[iPage].Phys <= UINT32_C(0xfffff000));
1367	}
1368	#ifdef RT_OS_DARWIN /* HACK ALERT! */
1369	supR3TouchPages(pReq->u.Out.pvR3, cPages);
1370	#endif
1371	}
1372	RTMemTmpFree(pReq);
1373	}
1374	else
1375	rc = VERR_NO_TMP_MEMORY;
1376
1377	return rc;
1378	}
1379
1380
1381	SUPR3DECL(int) SUPR3LowFree(void *pv, size_t cPages)
1382	{
1383	/*
1384	* Validate.
1385	*/
1386	if (!pv)
1387	return VINF_SUCCESS;
1388	AssertPtrReturn(pv, VERR_INVALID_POINTER);
1389	AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1390
1391	/* fake */
1392	if (RT_UNLIKELY(g_u32FakeMode))
1393	{
1394	RTMemPageFree(pv, cPages * PAGE_SIZE);
1395	return VINF_SUCCESS;
1396	}
1397
1398	/*
1399	* Issue IOCtl to the SUPDRV kernel module.
1400	*/
1401	SUPCONTFREE Req;
1402	Req.Hdr.u32Cookie = g_u32Cookie;
1403	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1404	Req.Hdr.cbIn = SUP_IOCTL_LOW_FREE_SIZE_IN;
1405	Req.Hdr.cbOut = SUP_IOCTL_LOW_FREE_SIZE_OUT;
1406	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1407	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1408	Req.u.In.pvR3 = pv;
1409	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOW_FREE, &Req, SUP_IOCTL_LOW_FREE_SIZE);
1410	if (RT_SUCCESS(rc))
1411	rc = Req.Hdr.rc;
1412	return rc;
1413	}
1414
1415
1416	SUPR3DECL(int) SUPR3HardenedVerifyFile(const char pszFilename, const char pszMsg, PRTFILE phFile)
1417	{
1418	/*
1419	* Quick input validation.
1420	*/
1421	AssertPtr(pszFilename);
1422	AssertPtr(pszMsg);
1423	AssertReturn(!phFile, VERR_NOT_IMPLEMENTED); /** @todo Implement this. The deal is that we make sure the
1424	file is the same we verified after opening it. */
1425
1426	/*
1427	* Only do the actual check in hardened builds.
1428	*/
1429	#ifdef VBOX_WITH_HARDENING
1430	int rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1431	if (RT_FAILURE(rc))
1432	LogRel(("SUPR3HardenedVerifyFile: %s: Verification of \"%s\" failed, rc=%Rrc\n", pszMsg, pszFilename, rc));
1433	return rc;
1434	#else
1435	return VINF_SUCCESS;
1436	#endif
1437	}
1438
1439
1440	SUPR3DECL(int) SUPR3LoadModule(const char pszFilename, const char pszModule, void **ppvImageBase)
1441	{
1442	int rc = VINF_SUCCESS;
1443	#ifdef VBOX_WITH_HARDENING
1444	/*
1445	* Check that the module can be trusted.
1446	*/
1447	rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1448	#endif
1449	if (RT_SUCCESS(rc))
1450	rc = supLoadModule(pszFilename, pszModule, NULL, ppvImageBase);
1451	else
1452	LogRel(("SUPR3LoadModule: Verification of \"%s\" failed, rc=%Rrc\n", rc));
1453	return rc;
1454	}
1455
1456
1457	SUPR3DECL(int) SUPR3LoadServiceModule(const char pszFilename, const char pszModule,
1458	const char pszSrvReqHandler, void *ppvImageBase)
1459	{
1460	int rc = VINF_SUCCESS;
1461	AssertPtrReturn(pszSrvReqHandler, VERR_INVALID_PARAMETER);
1462
1463	#ifdef VBOX_WITH_HARDENING
1464	/*
1465	* Check that the module can be trusted.
1466	*/
1467	rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1468	#endif
1469	if (RT_SUCCESS(rc))
1470	rc = supLoadModule(pszFilename, pszModule, pszSrvReqHandler, ppvImageBase);
1471	else
1472	LogRel(("SUPR3LoadServiceModule: Verification of \"%s\" failed, rc=%Rrc\n", rc));
1473	return rc;
1474	}
1475
1476
1477	/**
1478	* Resolve an external symbol during RTLdrGetBits().
1479	*
1480	* @returns VBox status code.
1481	* @param hLdrMod The loader module handle.
1482	* @param pszModule Module name.
1483	* @param pszSymbol Symbol name, NULL if uSymbol should be used.
1484	* @param uSymbol Symbol ordinal, ~0 if pszSymbol should be used.
1485	* @param pValue Where to store the symbol value (address).
1486	* @param pvUser User argument.
1487	*/
1488	static DECLCALLBACK(int) supLoadModuleResolveImport(RTLDRMOD hLdrMod, const char *pszModule,
1489	const char pszSymbol, unsigned uSymbol, RTUINTPTR pValue, void *pvUser)
1490	{
1491	AssertPtr(pValue);
1492	AssertPtr(pvUser);
1493
1494	/*
1495	* Only SUPR0 and VMMR0.r0
1496	*/
1497	if ( pszModule
1498	&& *pszModule
1499	&& strcmp(pszModule, "VBoxDrv.sys")
1500	&& strcmp(pszModule, "VMMR0.r0"))
1501	{
1502	AssertMsgFailed(("%s is importing from %s! (expected 'SUPR0.dll' or 'VMMR0.r0', case-sensitiv)\n", pvUser, pszModule));
1503	return VERR_SYMBOL_NOT_FOUND;
1504	}
1505
1506	/*
1507	* No ordinals.
1508	*/
1509	if (pszSymbol < (const char*)0x10000)
1510	{
1511	AssertMsgFailed(("%s is importing by ordinal (ord=%d)\n", pvUser, (int)(uintptr_t)pszSymbol));
1512	return VERR_SYMBOL_NOT_FOUND;
1513	}
1514
1515	/*
1516	* Lookup symbol.
1517	*/
1518	/** @todo is this actually used??? */
1519	/* skip the 64-bit ELF import prefix first. */
1520	if (!strncmp(pszSymbol, "SUPR0$", sizeof("SUPR0$") - 1))
1521	pszSymbol += sizeof("SUPR0$") - 1;
1522
1523	/*
1524	* Check the VMMR0.r0 module if loaded.
1525	*/
1526	/** @todo call the SUPR3LoadModule caller.... */
1527	/** @todo proper reference counting and such. */
1528	if (g_pvVMMR0 != NIL_RTR0PTR)
1529	{
1530	void *pvValue;
1531	if (!SUPR3GetSymbolR0((void *)g_pvVMMR0, pszSymbol, &pvValue))
1532	{
1533	*pValue = (uintptr_t)pvValue;
1534	return VINF_SUCCESS;
1535	}
1536	}
1537
1538	/* iterate the function table. */
1539	int c = g_pFunctions->u.Out.cFunctions;
1540	PSUPFUNC pFunc = &g_pFunctions->u.Out.aFunctions[0];
1541	while (c-- > 0)
1542	{
1543	if (!strcmp(pFunc->szName, pszSymbol))
1544	{
1545	*pValue = (uintptr_t)pFunc->pfn;
1546	return VINF_SUCCESS;
1547	}
1548	pFunc++;
1549	}
1550
1551	/*
1552	* The GIP.
1553	*/
1554	if ( pszSymbol
1555	&& g_pSUPGlobalInfoPage
1556	&& g_pSUPGlobalInfoPageR0
1557	&& !strcmp(pszSymbol, "g_SUPGlobalInfoPage")
1558	)
1559	{
1560	*pValue = (uintptr_t)g_pSUPGlobalInfoPageR0;
1561	return VINF_SUCCESS;
1562	}
1563
1564	/*
1565	* Despair.
1566	*/
1567	c = g_pFunctions->u.Out.cFunctions;
1568	pFunc = &g_pFunctions->u.Out.aFunctions[0];
1569	while (c-- > 0)
1570	{
1571	RTAssertMsg2Weak("%d: %s\n", g_pFunctions->u.Out.cFunctions - c, pFunc->szName);
1572	pFunc++;
1573	}
1574
1575	RTAssertMsg2Weak("%s is importing %s which we couldn't find\n", pvUser, pszSymbol);
1576	AssertMsgFailed(("%s is importing %s which we couldn't find\n", pvUser, pszSymbol));
1577	if (g_u32FakeMode)
1578	{
1579	*pValue = 0xdeadbeef;
1580	return VINF_SUCCESS;
1581	}
1582	return VERR_SYMBOL_NOT_FOUND;
1583	}
1584
1585
1586	/** Argument package for supLoadModuleCalcSizeCB. */
1587	typedef struct SUPLDRCALCSIZEARGS
1588	{
1589	size_t cbStrings;
1590	uint32_t cSymbols;
1591	size_t cbImage;
1592	} SUPLDRCALCSIZEARGS, *PSUPLDRCALCSIZEARGS;
1593
1594	/**
1595	* Callback used to calculate the image size.
1596	* @return VINF_SUCCESS
1597	*/
1598	static DECLCALLBACK(int) supLoadModuleCalcSizeCB(RTLDRMOD hLdrMod, const char pszSymbol, unsigned uSymbol, RTUINTPTR Value, void pvUser)
1599	{
1600	PSUPLDRCALCSIZEARGS pArgs = (PSUPLDRCALCSIZEARGS)pvUser;
1601	if ( pszSymbol != NULL
1602	&& *pszSymbol
1603	&& Value <= pArgs->cbImage)
1604	{
1605	pArgs->cSymbols++;
1606	pArgs->cbStrings += strlen(pszSymbol) + 1;
1607	}
1608	return VINF_SUCCESS;
1609	}
1610
1611
1612	/** Argument package for supLoadModuleCreateTabsCB. */
1613	typedef struct SUPLDRCREATETABSARGS
1614	{
1615	size_t cbImage;
1616	PSUPLDRSYM pSym;
1617	char *pszBase;
1618	char *psz;
1619	} SUPLDRCREATETABSARGS, *PSUPLDRCREATETABSARGS;
1620
1621	/**
1622	* Callback used to calculate the image size.
1623	* @return VINF_SUCCESS
1624	*/
1625	static DECLCALLBACK(int) supLoadModuleCreateTabsCB(RTLDRMOD hLdrMod, const char pszSymbol, unsigned uSymbol, RTUINTPTR Value, void pvUser)
1626	{
1627	PSUPLDRCREATETABSARGS pArgs = (PSUPLDRCREATETABSARGS)pvUser;
1628	if ( pszSymbol != NULL
1629	&& *pszSymbol
1630	&& Value <= pArgs->cbImage)
1631	{
1632	pArgs->pSym->offSymbol = (uint32_t)Value;
1633	pArgs->pSym->offName = pArgs->psz - pArgs->pszBase;
1634	pArgs->pSym++;
1635
1636	size_t cbCopy = strlen(pszSymbol) + 1;
1637	memcpy(pArgs->psz, pszSymbol, cbCopy);
1638	pArgs->psz += cbCopy;
1639	}
1640	return VINF_SUCCESS;
1641	}
1642
1643
1644	/**
1645	* Worker for SUPR3LoadModule().
1646	*
1647	* @returns VBox status code.
1648	* @param pszFilename Name of the VMMR0 image file
1649	*/
1650	static int supLoadModule(const char pszFilename, const char pszModule, const char pszSrvReqHandler, void *ppvImageBase)
1651	{
1652	int rc;
1653
1654	/*
1655	* Validate input.
1656	*/
1657	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
1658	AssertPtrReturn(pszModule, VERR_INVALID_PARAMETER);
1659	AssertPtrReturn(ppvImageBase, VERR_INVALID_PARAMETER);
1660	AssertReturn(strlen(pszModule) < RT_SIZEOFMEMB(SUPLDROPEN, u.In.szName), VERR_FILENAME_TOO_LONG);
1661	char szAbsFilename[RT_SIZEOFMEMB(SUPLDROPEN, u.In.szFilename)];
1662	rc = RTPathAbs(pszFilename, szAbsFilename, sizeof(szAbsFilename));
1663	if (RT_FAILURE(rc))
1664	return rc;
1665	pszFilename = szAbsFilename;
1666
1667	const bool fIsVMMR0 = !strcmp(pszModule, "VMMR0.r0");
1668	AssertReturn(!pszSrvReqHandler \|\| !fIsVMMR0, VERR_INTERNAL_ERROR);
1669	*ppvImageBase = NULL;
1670
1671	/*
1672	* Open image file and figure its size.
1673	*/
1674	RTLDRMOD hLdrMod;
1675	rc = RTLdrOpen(pszFilename, 0, RTLDRARCH_HOST, &hLdrMod);
1676	if (!RT_SUCCESS(rc))
1677	return rc;
1678
1679	SUPLDRCALCSIZEARGS CalcArgs;
1680	CalcArgs.cbStrings = 0;
1681	CalcArgs.cSymbols = 0;
1682	CalcArgs.cbImage = RTLdrSize(hLdrMod);
1683	rc = RTLdrEnumSymbols(hLdrMod, 0, NULL, 0, supLoadModuleCalcSizeCB, &CalcArgs);
1684	if (RT_SUCCESS(rc))
1685	{
1686	const uint32_t offSymTab = RT_ALIGN_32(CalcArgs.cbImage, 8);
1687	const uint32_t offStrTab = offSymTab + CalcArgs.cSymbols * sizeof(SUPLDRSYM);
1688	const uint32_t cbImageWithTabs = RT_ALIGN_32(offStrTab + CalcArgs.cbStrings, 8);
1689
1690	/*
1691	* Open the R0 image.
1692	*/
1693	SUPLDROPEN OpenReq;
1694	OpenReq.Hdr.u32Cookie = g_u32Cookie;
1695	OpenReq.Hdr.u32SessionCookie = g_u32SessionCookie;
1696	OpenReq.Hdr.cbIn = SUP_IOCTL_LDR_OPEN_SIZE_IN;
1697	OpenReq.Hdr.cbOut = SUP_IOCTL_LDR_OPEN_SIZE_OUT;
1698	OpenReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1699	OpenReq.Hdr.rc = VERR_INTERNAL_ERROR;
1700	OpenReq.u.In.cbImageWithTabs = cbImageWithTabs;
1701	OpenReq.u.In.cbImageBits = (uint32_t)CalcArgs.cbImage;
1702	strcpy(OpenReq.u.In.szName, pszModule);
1703	strcpy(OpenReq.u.In.szFilename, pszFilename);
1704	if (!g_u32FakeMode)
1705	{
1706	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_OPEN, &OpenReq, SUP_IOCTL_LDR_OPEN_SIZE);
1707	if (RT_SUCCESS(rc))
1708	rc = OpenReq.Hdr.rc;
1709	}
1710	else
1711	{
1712	OpenReq.u.Out.fNeedsLoading = true;
1713	OpenReq.u.Out.pvImageBase = 0xef423420;
1714	}
1715	ppvImageBase = (void )OpenReq.u.Out.pvImageBase;
1716	if ( RT_SUCCESS(rc)
1717	&& OpenReq.u.Out.fNeedsLoading)
1718	{
1719	/*
1720	* We need to load it.
1721	* Allocate memory for the image bits.
1722	*/
1723	PSUPLDRLOAD pLoadReq = (PSUPLDRLOAD)RTMemTmpAlloc(SUP_IOCTL_LDR_LOAD_SIZE(cbImageWithTabs));
1724	if (pLoadReq)
1725	{
1726	/*
1727	* Get the image bits.
1728	*/
1729	rc = RTLdrGetBits(hLdrMod, &pLoadReq->u.In.abImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase,
1730	supLoadModuleResolveImport, (void *)pszModule);
1731
1732	if (RT_SUCCESS(rc))
1733	{
1734	/*
1735	* Get the entry points.
1736	*/
1737	RTUINTPTR VMMR0EntryInt = 0;
1738	RTUINTPTR VMMR0EntryFast = 0;
1739	RTUINTPTR VMMR0EntryEx = 0;
1740	RTUINTPTR SrvReqHandler = 0;
1741	RTUINTPTR ModuleInit = 0;
1742	RTUINTPTR ModuleTerm = 0;
1743	if (fIsVMMR0)
1744	{
1745	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.abImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryInt", &VMMR0EntryInt);
1746	if (RT_SUCCESS(rc))
1747	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.abImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryFast", &VMMR0EntryFast);
1748	if (RT_SUCCESS(rc))
1749	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.abImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "VMMR0EntryEx", &VMMR0EntryEx);
1750	}
1751	else if (pszSrvReqHandler)
1752	rc = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.abImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, pszSrvReqHandler, &SrvReqHandler);
1753	if (RT_SUCCESS(rc))
1754	{
1755	int rc2 = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.abImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "ModuleInit", &ModuleInit);
1756	if (RT_FAILURE(rc2))
1757	ModuleInit = 0;
1758
1759	rc2 = RTLdrGetSymbolEx(hLdrMod, &pLoadReq->u.In.abImage[0], (uintptr_t)OpenReq.u.Out.pvImageBase, "ModuleTerm", &ModuleTerm);
1760	if (RT_FAILURE(rc2))
1761	ModuleTerm = 0;
1762	}
1763	if (RT_SUCCESS(rc))
1764	{
1765	/*
1766	* Create the symbol and string tables.
1767	*/
1768	SUPLDRCREATETABSARGS CreateArgs;
1769	CreateArgs.cbImage = CalcArgs.cbImage;
1770	CreateArgs.pSym = (PSUPLDRSYM)&pLoadReq->u.In.abImage[offSymTab];
1771	CreateArgs.pszBase = (char *)&pLoadReq->u.In.abImage[offStrTab];
1772	CreateArgs.psz = CreateArgs.pszBase;
1773	rc = RTLdrEnumSymbols(hLdrMod, 0, NULL, 0, supLoadModuleCreateTabsCB, &CreateArgs);
1774	if (RT_SUCCESS(rc))
1775	{
1776	AssertRelease((size_t)(CreateArgs.psz - CreateArgs.pszBase) <= CalcArgs.cbStrings);
1777	AssertRelease((size_t)(CreateArgs.pSym - (PSUPLDRSYM)&pLoadReq->u.In.abImage[offSymTab]) <= CalcArgs.cSymbols);
1778
1779	/*
1780	* Upload the image.
1781	*/
1782	pLoadReq->Hdr.u32Cookie = g_u32Cookie;
1783	pLoadReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1784	pLoadReq->Hdr.cbIn = SUP_IOCTL_LDR_LOAD_SIZE_IN(cbImageWithTabs);
1785	pLoadReq->Hdr.cbOut = SUP_IOCTL_LDR_LOAD_SIZE_OUT;
1786	pLoadReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC \| SUPREQHDR_FLAGS_EXTRA_IN;
1787	pLoadReq->Hdr.rc = VERR_INTERNAL_ERROR;
1788
1789	pLoadReq->u.In.pfnModuleInit = (RTR0PTR)ModuleInit;
1790	pLoadReq->u.In.pfnModuleTerm = (RTR0PTR)ModuleTerm;
1791	if (fIsVMMR0)
1792	{
1793	pLoadReq->u.In.eEPType = SUPLDRLOADEP_VMMR0;
1794	pLoadReq->u.In.EP.VMMR0.pvVMMR0 = OpenReq.u.Out.pvImageBase;
1795	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryInt = (RTR0PTR)VMMR0EntryInt;
1796	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryFast= (RTR0PTR)VMMR0EntryFast;
1797	pLoadReq->u.In.EP.VMMR0.pvVMMR0EntryEx = (RTR0PTR)VMMR0EntryEx;
1798	}
1799	else if (pszSrvReqHandler)
1800	{
1801	pLoadReq->u.In.eEPType = SUPLDRLOADEP_SERVICE;
1802	pLoadReq->u.In.EP.Service.pfnServiceReq = (RTR0PTR)SrvReqHandler;
1803	pLoadReq->u.In.EP.Service.apvReserved[0] = NIL_RTR0PTR;
1804	pLoadReq->u.In.EP.Service.apvReserved[1] = NIL_RTR0PTR;
1805	pLoadReq->u.In.EP.Service.apvReserved[2] = NIL_RTR0PTR;
1806	}
1807	else
1808	pLoadReq->u.In.eEPType = SUPLDRLOADEP_NOTHING;
1809	pLoadReq->u.In.offStrTab = offStrTab;
1810	pLoadReq->u.In.cbStrTab = (uint32_t)CalcArgs.cbStrings;
1811	AssertRelease(pLoadReq->u.In.cbStrTab == CalcArgs.cbStrings);
1812	pLoadReq->u.In.cbImageBits = (uint32_t)CalcArgs.cbImage;
1813	pLoadReq->u.In.offSymbols = offSymTab;
1814	pLoadReq->u.In.cSymbols = CalcArgs.cSymbols;
1815	pLoadReq->u.In.cbImageWithTabs = cbImageWithTabs;
1816	pLoadReq->u.In.pvImageBase = OpenReq.u.Out.pvImageBase;
1817	if (!g_u32FakeMode)
1818	{
1819	rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_LOAD, pLoadReq, SUP_IOCTL_LDR_LOAD_SIZE(cbImageWithTabs));
1820	if (RT_SUCCESS(rc))
1821	rc = pLoadReq->Hdr.rc;
1822	}
1823	else
1824	rc = VINF_SUCCESS;
1825	if ( RT_SUCCESS(rc)
1826	\|\| rc == VERR_ALREADY_LOADED /* A competing process. */
1827	)
1828	{
1829	LogRel(("SUP: Loaded %s (%s) at %#p - ModuleInit at %RTptr and ModuleTerm at %RTptr%s\n",
1830	pszModule, pszFilename, OpenReq.u.Out.pvImageBase, ModuleInit, ModuleTerm,
1831	OpenReq.u.Out.fNativeLoader ? " using the native ring-0 loader" : ""));
1832	if (fIsVMMR0)
1833	{
1834	g_pvVMMR0 = OpenReq.u.Out.pvImageBase;
1835	LogRel(("SUP: VMMR0EntryEx located at %RTptr, VMMR0EntryFast at %RTptr and VMMR0EntryInt at %RTptr\n",
1836	VMMR0EntryEx, VMMR0EntryFast, VMMR0EntryInt));
1837	}
1838	#ifdef RT_OS_WINDOWS
1839	LogRel(("SUP: windbg> .reload /f %s=%#p\n", pszFilename, OpenReq.u.Out.pvImageBase));
1840	#endif
1841
1842	RTMemTmpFree(pLoadReq);
1843	RTLdrClose(hLdrMod);
1844	return VINF_SUCCESS;
1845	}
1846	}
1847	}
1848	}
1849	RTMemTmpFree(pLoadReq);
1850	}
1851	else
1852	{
1853	AssertMsgFailed(("failed to allocated %u bytes for SUPLDRLOAD_IN structure!\n", SUP_IOCTL_LDR_LOAD_SIZE(cbImageWithTabs)));
1854	rc = VERR_NO_TMP_MEMORY;
1855	}
1856	}
1857	else if (RT_SUCCESS(rc))
1858	{
1859	if (fIsVMMR0)
1860	g_pvVMMR0 = OpenReq.u.Out.pvImageBase;
1861	LogRel(("SUP: Opened %s (%s) at %#p.\n", pszModule, pszFilename, OpenReq.u.Out.pvImageBase,
1862	OpenReq.u.Out.fNativeLoader ? " loaded by the native ring-0 loader" : ""));
1863	#ifdef RT_OS_WINDOWS
1864	LogRel(("SUP: windbg> .reload /f %s=%#p\n", pszFilename, OpenReq.u.Out.pvImageBase));
1865	#endif
1866	}
1867	}
1868	RTLdrClose(hLdrMod);
1869	return rc;
1870	}
1871
1872
1873	SUPR3DECL(int) SUPR3FreeModule(void *pvImageBase)
1874	{
1875	/* fake */
1876	if (RT_UNLIKELY(g_u32FakeMode))
1877	{
1878	g_pvVMMR0 = NIL_RTR0PTR;
1879	return VINF_SUCCESS;
1880	}
1881
1882	/*
1883	* Free the requested module.
1884	*/
1885	SUPLDRFREE Req;
1886	Req.Hdr.u32Cookie = g_u32Cookie;
1887	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1888	Req.Hdr.cbIn = SUP_IOCTL_LDR_FREE_SIZE_IN;
1889	Req.Hdr.cbOut = SUP_IOCTL_LDR_FREE_SIZE_OUT;
1890	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1891	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1892	Req.u.In.pvImageBase = (RTR0PTR)pvImageBase;
1893	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_FREE, &Req, SUP_IOCTL_LDR_FREE_SIZE);
1894	if (RT_SUCCESS(rc))
1895	rc = Req.Hdr.rc;
1896	if ( RT_SUCCESS(rc)
1897	&& (RTR0PTR)pvImageBase == g_pvVMMR0)
1898	g_pvVMMR0 = NIL_RTR0PTR;
1899	return rc;
1900	}
1901
1902
1903	SUPR3DECL(int) SUPR3GetSymbolR0(void pvImageBase, const char pszSymbol, void **ppvValue)
1904	{
1905	*ppvValue = NULL;
1906
1907	/* fake */
1908	if (RT_UNLIKELY(g_u32FakeMode))
1909	{
1910	ppvValue = (void )(uintptr_t)0xdeadf00d;
1911	return VINF_SUCCESS;
1912	}
1913
1914	/*
1915	* Do ioctl.
1916	*/
1917	SUPLDRGETSYMBOL Req;
1918	Req.Hdr.u32Cookie = g_u32Cookie;
1919	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1920	Req.Hdr.cbIn = SUP_IOCTL_LDR_GET_SYMBOL_SIZE_IN;
1921	Req.Hdr.cbOut = SUP_IOCTL_LDR_GET_SYMBOL_SIZE_OUT;
1922	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1923	Req.Hdr.rc = VERR_INTERNAL_ERROR;
1924	Req.u.In.pvImageBase = (RTR0PTR)pvImageBase;
1925	size_t cchSymbol = strlen(pszSymbol);
1926	if (cchSymbol >= sizeof(Req.u.In.szSymbol))
1927	return VERR_SYMBOL_NOT_FOUND;
1928	memcpy(Req.u.In.szSymbol, pszSymbol, cchSymbol + 1);
1929	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_GET_SYMBOL, &Req, SUP_IOCTL_LDR_GET_SYMBOL_SIZE);
1930	if (RT_SUCCESS(rc))
1931	rc = Req.Hdr.rc;
1932	if (RT_SUCCESS(rc))
1933	ppvValue = (void )Req.u.Out.pvSymbol;
1934	return rc;
1935	}
1936
1937
1938	SUPR3DECL(int) SUPR3LoadVMM(const char *pszFilename)
1939	{
1940	void *pvImageBase;
1941	return SUPR3LoadModule(pszFilename, "VMMR0.r0", &pvImageBase);
1942	}
1943
1944
1945	SUPR3DECL(int) SUPR3UnloadVMM(void)
1946	{
1947	return SUPR3FreeModule((void*)g_pvVMMR0);
1948	}
1949
1950
1951	SUPR3DECL(int) SUPR3GipGetPhys(PRTHCPHYS pHCPhys)
1952	{
1953	if (g_pSUPGlobalInfoPage)
1954	{
1955	*pHCPhys = g_HCPhysSUPGlobalInfoPage;
1956	return VINF_SUCCESS;
1957	}
1958	*pHCPhys = NIL_RTHCPHYS;
1959	return VERR_WRONG_ORDER;
1960	}
1961
1962
1963	/**
1964	* Worker for SUPR3HardenedLdrLoad and SUPR3HardenedLdrLoadAppPriv.
1965	*
1966	* @returns iprt status code.
1967	* @param pszFilename The full file name.
1968	* @param phLdrMod Where to store the handle to the loaded module.
1969	*/
1970	static int supR3HardenedLdrLoadIt(const char *pszFilename, PRTLDRMOD phLdrMod)
1971	{
1972	#ifdef VBOX_WITH_HARDENING
1973	/*
1974	* Verify the image file.
1975	*/
1976	int rc = supR3HardenedVerifyFile(pszFilename, false /* fFatal */);
1977	if (RT_FAILURE(rc))
1978	{
1979	LogRel(("supR3HardenedLdrLoadIt: Verification of \"%s\" failed, rc=%Rrc\n", pszFilename, rc));
1980	return rc;
1981	}
1982	#endif
1983
1984	/*
1985	* Try load it.
1986	*/
1987	return RTLdrLoad(pszFilename, phLdrMod);
1988	}
1989
1990
1991	SUPR3DECL(int) SUPR3HardenedLdrLoad(const char *pszFilename, PRTLDRMOD phLdrMod)
1992	{
1993	/*
1994	* Validate input.
1995	*/
1996	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
1997	AssertPtrReturn(phLdrMod, VERR_INVALID_PARAMETER);
1998	*phLdrMod = NIL_RTLDRMOD;
1999	AssertReturn(RTPathHavePath(pszFilename), VERR_INVALID_PARAMETER);
2000
2001	/*
2002	* Add the default extension if it's missing.
2003	*/
2004	if (!RTPathHaveExt(pszFilename))
2005	{
2006	const char *pszSuff = RTLdrGetSuff();
2007	size_t cchSuff = strlen(pszSuff);
2008	size_t cchFilename = strlen(pszFilename);
2009	char psz = (char )alloca(cchFilename + cchSuff + 1);
2010	AssertReturn(psz, VERR_NO_TMP_MEMORY);
2011	memcpy(psz, pszFilename, cchFilename);
2012	memcpy(psz + cchFilename, pszSuff, cchSuff + 1);
2013	pszFilename = psz;
2014	}
2015
2016	/*
2017	* Pass it on to the common library loader.
2018	*/
2019	return supR3HardenedLdrLoadIt(pszFilename, phLdrMod);
2020	}
2021
2022
2023	SUPR3DECL(int) SUPR3HardenedLdrLoadAppPriv(const char *pszFilename, PRTLDRMOD phLdrMod)
2024	{
2025	LogFlow(("SUPR3HardenedLdrLoadAppPriv: pszFilename=%p:{%s} phLdrMod=%p\n", pszFilename, pszFilename, phLdrMod));
2026
2027	/*
2028	* Validate input.
2029	*/
2030	AssertPtrReturn(phLdrMod, VERR_INVALID_PARAMETER);
2031	*phLdrMod = NIL_RTLDRMOD;
2032	AssertPtrReturn(pszFilename, VERR_INVALID_PARAMETER);
2033	AssertMsgReturn(!RTPathHavePath(pszFilename), ("%s\n", pszFilename), VERR_INVALID_PARAMETER);
2034
2035	/*
2036	* Check the filename.
2037	*/
2038	size_t cchFilename = strlen(pszFilename);
2039	AssertMsgReturn(cchFilename < (RTPATH_MAX / 4) * 3, ("%zu\n", cchFilename), VERR_INVALID_PARAMETER);
2040
2041	const char *pszExt = "";
2042	size_t cchExt = 0;
2043	if (!RTPathHaveExt(pszFilename))
2044	{
2045	pszExt = RTLdrGetSuff();
2046	cchExt = strlen(pszExt);
2047	}
2048
2049	/*
2050	* Construct the private arch path and check if the file exists.
2051	*/
2052	char szPath[RTPATH_MAX];
2053	int rc = RTPathAppPrivateArch(szPath, sizeof(szPath) - 1 - cchExt - cchFilename);
2054	AssertRCReturn(rc, rc);
2055
2056	char *psz = strchr(szPath, '\0');
2057	*psz++ = RTPATH_SLASH;
2058	memcpy(psz, pszFilename, cchFilename);
2059	psz += cchFilename;
2060	memcpy(psz, pszExt, cchExt + 1);
2061
2062	if (!RTPathExists(szPath))
2063	{
2064	LogRel(("SUPR3HardenedLdrLoadAppPriv: \"%s\" not found\n", szPath));
2065	return VERR_FILE_NOT_FOUND;
2066	}
2067
2068	/*
2069	* Pass it on to SUPR3HardenedLdrLoad.
2070	*/
2071	rc = SUPR3HardenedLdrLoad(szPath, phLdrMod);
2072
2073	LogFlow(("SUPR3HardenedLdrLoadAppPriv: returns %Rrc\n", rc));
2074	return rc;
2075	}
2076
2077
2078	SUPR3DECL(int) SUPR3QueryVTxSupported(void)
2079	{
2080	#ifdef RT_OS_LINUX
2081	return suplibOsQueryVTxSupported();
2082	#else
2083	return VINF_SUCCESS;
2084	#endif
2085	}
2086
2087
2088	SUPR3DECL(int) SUPR3QueryVTCaps(uint32_t *pfCaps)
2089	{
2090	AssertPtrReturn(pfCaps, VERR_INVALID_POINTER);
2091
2092	*pfCaps = 0;
2093
2094	/* fake */
2095	if (RT_UNLIKELY(g_u32FakeMode))
2096	return VINF_SUCCESS;
2097
2098	/*
2099	* Issue IOCtl to the SUPDRV kernel module.
2100	*/
2101	SUPVTCAPS Req;
2102	Req.Hdr.u32Cookie = g_u32Cookie;
2103	Req.Hdr.u32SessionCookie = g_u32SessionCookie;
2104	Req.Hdr.cbIn = SUP_IOCTL_VT_CAPS_SIZE_IN;
2105	Req.Hdr.cbOut = SUP_IOCTL_VT_CAPS_SIZE_OUT;
2106	Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2107	Req.Hdr.rc = VERR_INTERNAL_ERROR;
2108	Req.u.Out.Caps = 0;
2109	int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_VT_CAPS, &Req, SUP_IOCTL_VT_CAPS_SIZE);
2110	if (RT_SUCCESS(rc))
2111	{
2112	rc = Req.Hdr.rc;
2113	if (RT_SUCCESS(rc))
2114	*pfCaps = Req.u.Out.Caps;
2115	}
2116	return rc;
2117	}
2118

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source: vbox/trunk/src/VBox/HostDrivers/Support/SUPLib.cpp@ 32740

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