VirtualBox

source: vbox/trunk/src/VBox/HostDrivers/Support/SUPLib.cpp@ 67954

Last change on this file since 67954 was 67821, checked in by vboxsync, 7 years ago

SUP, VMM: Added interface to read CPU microcode revision, used in VMM to decide whether Ryzen VME workaround is needed or not (bugref:8852).
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  • Property svn:keywords set to Author Date Id Revision
File size: 81.3 KB
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1/* $Id: SUPLib.cpp 67821 2017-07-06 13:38:26Z vboxsync $ */
2/** @file
3 * VirtualBox Support Library - Common code.
4 */
5
6/*
7 * Copyright (C) 2006-2016 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 * transfer 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/*********************************************************************************************************************************
47* Header Files *
48*********************************************************************************************************************************/
49#define LOG_GROUP LOG_GROUP_SUP
50#include <VBox/sup.h>
51#include <VBox/err.h>
52#include <VBox/param.h>
53#include <VBox/log.h>
54#include <VBox/VBoxTpG.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#include <iprt/x86.h>
70
71#include "SUPDrvIOC.h"
72#include "SUPLibInternal.h"
73
74
75/*********************************************************************************************************************************
76* Defined Constants And Macros *
77*********************************************************************************************************************************/
78/** R0 VMM module name. */
79#define VMMR0_NAME "VMMR0"
80
81
82/*********************************************************************************************************************************
83* Structures and Typedefs *
84*********************************************************************************************************************************/
85typedef DECLCALLBACK(int) FNCALLVMMR0(PVMR0 pVMR0, unsigned uOperation, void *pvArg);
86typedef FNCALLVMMR0 *PFNCALLVMMR0;
87
88
89/*********************************************************************************************************************************
90* Global Variables *
91*********************************************************************************************************************************/
92/** Init counter. */
93static uint32_t g_cInits = 0;
94/** Whether we've been preinitied. */
95static bool g_fPreInited = false;
96/** The SUPLib instance data.
97 * Well, at least parts of it, specifically the parts that are being handed over
98 * via the pre-init mechanism from the hardened executable stub. */
99SUPLIBDATA g_supLibData =
100{
101 /*.hDevice = */ SUP_HDEVICE_NIL,
102 /*.fUnrestricted = */ true
103#if defined(RT_OS_DARWIN)
104 ,/* .uConnection = */ 0
105#elif defined(RT_OS_LINUX)
106 ,/* .fSysMadviseWorks = */ false
107#endif
108};
109
110/** Pointer to the Global Information Page.
111 *
112 * This pointer is valid as long as SUPLib has a open session. Anyone using
113 * the page must treat this pointer as highly volatile and not trust it beyond
114 * one transaction.
115 *
116 * @todo This will probably deserve it's own session or some other good solution...
117 */
118DECLEXPORT(PSUPGLOBALINFOPAGE) g_pSUPGlobalInfoPage;
119/** Address of the ring-0 mapping of the GIP. */
120PSUPGLOBALINFOPAGE g_pSUPGlobalInfoPageR0;
121/** The physical address of the GIP. */
122static RTHCPHYS g_HCPhysSUPGlobalInfoPage = NIL_RTHCPHYS;
123
124/** The negotiated cookie. */
125uint32_t g_u32Cookie = 0;
126/** The negotiated session cookie. */
127uint32_t g_u32SessionCookie;
128/** Session handle. */
129PSUPDRVSESSION g_pSession;
130/** R0 SUP Functions used for resolving referenced to the SUPR0 module. */
131PSUPQUERYFUNCS g_pSupFunctions;
132
133/** PAGE_ALLOC_EX sans kernel mapping support indicator. */
134static bool g_fSupportsPageAllocNoKernel = true;
135/** Fake mode indicator. (~0 at first, 0 or 1 after first test) */
136uint32_t g_uSupFakeMode = UINT32_MAX;
137
138
139/*********************************************************************************************************************************
140* Internal Functions *
141*********************************************************************************************************************************/
142static int supInitFake(PSUPDRVSESSION *ppSession);
143
144
145/** Touch a range of pages. */
146DECLINLINE(void) supR3TouchPages(void *pv, size_t cPages)
147{
148 uint32_t volatile *pu32 = (uint32_t volatile *)pv;
149 while (cPages-- > 0)
150 {
151 ASMAtomicCmpXchgU32(pu32, 0, 0);
152 pu32 += PAGE_SIZE / sizeof(uint32_t);
153 }
154}
155
156
157SUPR3DECL(int) SUPR3Install(void)
158{
159 return suplibOsInstall();
160}
161
162
163SUPR3DECL(int) SUPR3Uninstall(void)
164{
165 return suplibOsUninstall();
166}
167
168
169DECLEXPORT(int) supR3PreInit(PSUPPREINITDATA pPreInitData, uint32_t fFlags)
170{
171 /*
172 * The caller is kind of trustworthy, just perform some basic checks.
173 *
174 * Note! Do not do any fancy stuff here because IPRT has NOT been
175 * initialized at this point.
176 */
177 if (!VALID_PTR(pPreInitData))
178 return VERR_INVALID_POINTER;
179 if (g_fPreInited || g_cInits > 0)
180 return VERR_WRONG_ORDER;
181
182 if ( pPreInitData->u32Magic != SUPPREINITDATA_MAGIC
183 || pPreInitData->u32EndMagic != SUPPREINITDATA_MAGIC)
184 return VERR_INVALID_MAGIC;
185 if ( !(fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV)
186 && pPreInitData->Data.hDevice == SUP_HDEVICE_NIL)
187 return VERR_INVALID_HANDLE;
188 if ( (fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV)
189 && pPreInitData->Data.hDevice != SUP_HDEVICE_NIL)
190 return VERR_INVALID_PARAMETER;
191
192 /*
193 * Hand out the data.
194 */
195 int rc = supR3HardenedRecvPreInitData(pPreInitData);
196 if (RT_FAILURE(rc))
197 return rc;
198
199 /** @todo This may need some small restructuring later, it doesn't quite work with a root service flag... */
200 if (!(fFlags & SUPSECMAIN_FLAGS_DONT_OPEN_DEV))
201 {
202 g_supLibData = pPreInitData->Data;
203 g_fPreInited = true;
204 }
205
206 return VINF_SUCCESS;
207}
208
209
210SUPR3DECL(int) SUPR3InitEx(bool fUnrestricted, PSUPDRVSESSION *ppSession)
211{
212 /*
213 * Perform some sanity checks.
214 * (Got some trouble with compile time member alignment assertions.)
215 */
216 Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, u64NanoTSLastUpdateHz) & 0x7));
217 Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs) & 0x1f));
218 Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[1]) & 0x1f));
219 Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64NanoTS) & 0x7));
220 Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64TSC) & 0x7));
221 Assert(!(RT_OFFSETOF(SUPGLOBALINFOPAGE, aCPUs[0].u64CpuHz) & 0x7));
222
223 /*
224 * Check if already initialized.
225 */
226 if (ppSession)
227 *ppSession = g_pSession;
228 if (g_cInits++ > 0)
229 {
230 if (fUnrestricted && !g_supLibData.fUnrestricted)
231 {
232 g_cInits--;
233 if (ppSession)
234 *ppSession = NIL_RTR0PTR;
235 return VERR_VM_DRIVER_NOT_ACCESSIBLE; /** @todo different status code? */
236 }
237 return VINF_SUCCESS;
238 }
239
240 /*
241 * Check for fake mode.
242 *
243 * Fake mode is used when we're doing smoke testing and debugging.
244 * It's also useful on platforms where we haven't root access or which
245 * we haven't ported the support driver to.
246 */
247 if (g_uSupFakeMode == ~0U)
248 {
249 const char *psz = RTEnvGet("VBOX_SUPLIB_FAKE");
250 if (psz && !strcmp(psz, "fake"))
251 ASMAtomicCmpXchgU32(&g_uSupFakeMode, 1, ~0U);
252 else
253 ASMAtomicCmpXchgU32(&g_uSupFakeMode, 0, ~0U);
254 }
255 if (RT_UNLIKELY(g_uSupFakeMode))
256 return supInitFake(ppSession);
257
258 /*
259 * Open the support driver.
260 */
261 SUPINITOP enmWhat = kSupInitOp_Driver;
262 int rc = suplibOsInit(&g_supLibData, g_fPreInited, fUnrestricted, &enmWhat, NULL);
263 if (RT_SUCCESS(rc))
264 {
265 /*
266 * Negotiate the cookie.
267 */
268 SUPCOOKIE CookieReq;
269 memset(&CookieReq, 0xff, sizeof(CookieReq));
270 CookieReq.Hdr.u32Cookie = SUPCOOKIE_INITIAL_COOKIE;
271 CookieReq.Hdr.u32SessionCookie = RTRandU32();
272 CookieReq.Hdr.cbIn = SUP_IOCTL_COOKIE_SIZE_IN;
273 CookieReq.Hdr.cbOut = SUP_IOCTL_COOKIE_SIZE_OUT;
274 CookieReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
275 CookieReq.Hdr.rc = VERR_INTERNAL_ERROR;
276 strcpy(CookieReq.u.In.szMagic, SUPCOOKIE_MAGIC);
277 CookieReq.u.In.u32ReqVersion = SUPDRV_IOC_VERSION;
278 const uint32_t uMinVersion = (SUPDRV_IOC_VERSION & 0xffff0000) == 0x00280000
279 ? 0x00280002
280 : SUPDRV_IOC_VERSION & 0xffff0000;
281 CookieReq.u.In.u32MinVersion = uMinVersion;
282 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_COOKIE, &CookieReq, SUP_IOCTL_COOKIE_SIZE);
283 if ( RT_SUCCESS(rc)
284 && RT_SUCCESS(CookieReq.Hdr.rc))
285 {
286 if ( (CookieReq.u.Out.u32SessionVersion & 0xffff0000) == (SUPDRV_IOC_VERSION & 0xffff0000)
287 && CookieReq.u.Out.u32SessionVersion >= uMinVersion)
288 {
289 /*
290 * Query the functions.
291 */
292 PSUPQUERYFUNCS pFuncsReq = NULL;
293 if (g_supLibData.fUnrestricted)
294 {
295 pFuncsReq = (PSUPQUERYFUNCS)RTMemAllocZ(SUP_IOCTL_QUERY_FUNCS_SIZE(CookieReq.u.Out.cFunctions));
296 if (pFuncsReq)
297 {
298 pFuncsReq->Hdr.u32Cookie = CookieReq.u.Out.u32Cookie;
299 pFuncsReq->Hdr.u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
300 pFuncsReq->Hdr.cbIn = SUP_IOCTL_QUERY_FUNCS_SIZE_IN;
301 pFuncsReq->Hdr.cbOut = SUP_IOCTL_QUERY_FUNCS_SIZE_OUT(CookieReq.u.Out.cFunctions);
302 pFuncsReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
303 pFuncsReq->Hdr.rc = VERR_INTERNAL_ERROR;
304 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_QUERY_FUNCS(CookieReq.u.Out.cFunctions), pFuncsReq,
305 SUP_IOCTL_QUERY_FUNCS_SIZE(CookieReq.u.Out.cFunctions));
306 if (RT_SUCCESS(rc))
307 rc = pFuncsReq->Hdr.rc;
308 if (RT_SUCCESS(rc))
309 {
310 /*
311 * Map the GIP into userspace.
312 */
313 Assert(!g_pSUPGlobalInfoPage);
314 SUPGIPMAP GipMapReq;
315 GipMapReq.Hdr.u32Cookie = CookieReq.u.Out.u32Cookie;
316 GipMapReq.Hdr.u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
317 GipMapReq.Hdr.cbIn = SUP_IOCTL_GIP_MAP_SIZE_IN;
318 GipMapReq.Hdr.cbOut = SUP_IOCTL_GIP_MAP_SIZE_OUT;
319 GipMapReq.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
320 GipMapReq.Hdr.rc = VERR_INTERNAL_ERROR;
321 GipMapReq.u.Out.HCPhysGip = NIL_RTHCPHYS;
322 GipMapReq.u.Out.pGipR0 = NIL_RTR0PTR;
323 GipMapReq.u.Out.pGipR3 = NULL;
324 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_GIP_MAP, &GipMapReq, SUP_IOCTL_GIP_MAP_SIZE);
325 if (RT_SUCCESS(rc))
326 rc = GipMapReq.Hdr.rc;
327 if (RT_SUCCESS(rc))
328 {
329 /*
330 * Set the GIP globals.
331 */
332 AssertRelease(GipMapReq.u.Out.pGipR3->u32Magic == SUPGLOBALINFOPAGE_MAGIC);
333 AssertRelease(GipMapReq.u.Out.pGipR3->u32Version >= SUPGLOBALINFOPAGE_VERSION);
334
335 ASMAtomicXchgSize(&g_HCPhysSUPGlobalInfoPage, GipMapReq.u.Out.HCPhysGip);
336 ASMAtomicCmpXchgPtr((void * volatile *)&g_pSUPGlobalInfoPage, GipMapReq.u.Out.pGipR3, NULL);
337 ASMAtomicCmpXchgPtr((void * volatile *)&g_pSUPGlobalInfoPageR0, (void *)GipMapReq.u.Out.pGipR0, NULL);
338 }
339 }
340 }
341 else
342 rc = VERR_NO_MEMORY;
343 }
344
345 if (RT_SUCCESS(rc))
346 {
347 /*
348 * Set the globals and return success.
349 */
350 g_u32Cookie = CookieReq.u.Out.u32Cookie;
351 g_u32SessionCookie = CookieReq.u.Out.u32SessionCookie;
352 g_pSession = CookieReq.u.Out.pSession;
353 g_pSupFunctions = pFuncsReq;
354 if (ppSession)
355 *ppSession = CookieReq.u.Out.pSession;
356 return VINF_SUCCESS;
357 }
358
359 /* bailout */
360 RTMemFree(pFuncsReq);
361 }
362 else
363 {
364 LogRel(("Support driver version mismatch: SessionVersion=%#x DriverVersion=%#x ClientVersion=%#x MinVersion=%#x\n",
365 CookieReq.u.Out.u32SessionVersion, CookieReq.u.Out.u32DriverVersion, SUPDRV_IOC_VERSION, uMinVersion));
366 rc = VERR_VM_DRIVER_VERSION_MISMATCH;
367 }
368 }
369 else
370 {
371 if (RT_SUCCESS(rc))
372 {
373 rc = CookieReq.Hdr.rc;
374 LogRel(("Support driver version mismatch: DriverVersion=%#x ClientVersion=%#x rc=%Rrc\n",
375 CookieReq.u.Out.u32DriverVersion, SUPDRV_IOC_VERSION, rc));
376 if (rc != VERR_VM_DRIVER_VERSION_MISMATCH)
377 rc = VERR_VM_DRIVER_VERSION_MISMATCH;
378 }
379 else
380 {
381 /* for pre 0x00060000 drivers */
382 LogRel(("Support driver version mismatch: DriverVersion=too-old ClientVersion=%#x\n", SUPDRV_IOC_VERSION));
383 rc = VERR_VM_DRIVER_VERSION_MISMATCH;
384 }
385 }
386
387 suplibOsTerm(&g_supLibData);
388 }
389 g_cInits--;
390
391 return rc;
392}
393
394
395SUPR3DECL(int) SUPR3Init(PSUPDRVSESSION *ppSession)
396{
397 return SUPR3InitEx(true, ppSession);
398}
399
400/**
401 * Fake mode init.
402 */
403static int supInitFake(PSUPDRVSESSION *ppSession)
404{
405 Log(("SUP: Fake mode!\n"));
406 static const SUPFUNC s_aFakeFunctions[] =
407 {
408 /* name function */
409 { "SUPR0AbsIs64bit", 0 },
410 { "SUPR0Abs64bitKernelCS", 0 },
411 { "SUPR0Abs64bitKernelSS", 0 },
412 { "SUPR0Abs64bitKernelDS", 0 },
413 { "SUPR0AbsKernelCS", 8 },
414 { "SUPR0AbsKernelSS", 16 },
415 { "SUPR0AbsKernelDS", 16 },
416 { "SUPR0AbsKernelES", 16 },
417 { "SUPR0AbsKernelFS", 24 },
418 { "SUPR0AbsKernelGS", 32 },
419 { "SUPR0ComponentRegisterFactory", 0xefeefffd },
420 { "SUPR0ComponentDeregisterFactory", 0xefeefffe },
421 { "SUPR0ComponentQueryFactory", 0xefeeffff },
422 { "SUPR0ObjRegister", 0xefef0000 },
423 { "SUPR0ObjAddRef", 0xefef0001 },
424 { "SUPR0ObjAddRefEx", 0xefef0001 },
425 { "SUPR0ObjRelease", 0xefef0002 },
426 { "SUPR0ObjVerifyAccess", 0xefef0003 },
427 { "SUPR0LockMem", 0xefef0004 },
428 { "SUPR0UnlockMem", 0xefef0005 },
429 { "SUPR0ContAlloc", 0xefef0006 },
430 { "SUPR0ContFree", 0xefef0007 },
431 { "SUPR0MemAlloc", 0xefef0008 },
432 { "SUPR0MemGetPhys", 0xefef0009 },
433 { "SUPR0MemFree", 0xefef000a },
434 { "SUPR0Printf", 0xefef000b },
435 { "SUPR0GetPagingMode", 0xefef000c },
436 { "SUPR0EnableVTx", 0xefef000e },
437 { "RTMemAlloc", 0xefef000f },
438 { "RTMemAllocZ", 0xefef0010 },
439 { "RTMemFree", 0xefef0011 },
440 { "RTR0MemObjAddress", 0xefef0012 },
441 { "RTR0MemObjAddressR3", 0xefef0013 },
442 { "RTR0MemObjAllocPage", 0xefef0014 },
443 { "RTR0MemObjAllocPhysNC", 0xefef0015 },
444 { "RTR0MemObjAllocLow", 0xefef0016 },
445 { "RTR0MemObjEnterPhys", 0xefef0017 },
446 { "RTR0MemObjFree", 0xefef0018 },
447 { "RTR0MemObjGetPagePhysAddr", 0xefef0019 },
448 { "RTR0MemObjMapUser", 0xefef001a },
449 { "RTR0MemObjMapKernel", 0xefef001b },
450 { "RTR0MemObjMapKernelEx", 0xefef001c },
451 { "RTMpGetArraySize", 0xefef001c },
452 { "RTProcSelf", 0xefef001d },
453 { "RTR0ProcHandleSelf", 0xefef001e },
454 { "RTSemEventCreate", 0xefef001f },
455 { "RTSemEventSignal", 0xefef0020 },
456 { "RTSemEventWait", 0xefef0021 },
457 { "RTSemEventWaitNoResume", 0xefef0022 },
458 { "RTSemEventDestroy", 0xefef0023 },
459 { "RTSemEventMultiCreate", 0xefef0024 },
460 { "RTSemEventMultiSignal", 0xefef0025 },
461 { "RTSemEventMultiReset", 0xefef0026 },
462 { "RTSemEventMultiWait", 0xefef0027 },
463 { "RTSemEventMultiWaitNoResume", 0xefef0028 },
464 { "RTSemEventMultiDestroy", 0xefef0029 },
465 { "RTSemFastMutexCreate", 0xefef002a },
466 { "RTSemFastMutexDestroy", 0xefef002b },
467 { "RTSemFastMutexRequest", 0xefef002c },
468 { "RTSemFastMutexRelease", 0xefef002d },
469 { "RTSpinlockCreate", 0xefef002e },
470 { "RTSpinlockDestroy", 0xefef002f },
471 { "RTSpinlockAcquire", 0xefef0030 },
472 { "RTSpinlockRelease", 0xefef0031 },
473 { "RTSpinlockAcquireNoInts", 0xefef0032 },
474 { "RTTimeNanoTS", 0xefef0034 },
475 { "RTTimeMillieTS", 0xefef0035 },
476 { "RTTimeSystemNanoTS", 0xefef0036 },
477 { "RTTimeSystemMillieTS", 0xefef0037 },
478 { "RTThreadNativeSelf", 0xefef0038 },
479 { "RTThreadSleep", 0xefef0039 },
480 { "RTThreadYield", 0xefef003a },
481 { "RTTimerCreate", 0xefef003a },
482 { "RTTimerCreateEx", 0xefef003a },
483 { "RTTimerDestroy", 0xefef003a },
484 { "RTTimerStart", 0xefef003a },
485 { "RTTimerStop", 0xefef003a },
486 { "RTTimerChangeInterval", 0xefef003a },
487 { "RTTimerGetSystemGranularity", 0xefef003a },
488 { "RTTimerRequestSystemGranularity", 0xefef003a },
489 { "RTTimerReleaseSystemGranularity", 0xefef003a },
490 { "RTTimerCanDoHighResolution", 0xefef003a },
491 { "RTLogDefaultInstance", 0xefef003b },
492 { "RTLogRelGetDefaultInstance", 0xefef003c },
493 { "RTLogSetDefaultInstanceThread", 0xefef003d },
494 { "RTLogLogger", 0xefef003e },
495 { "RTLogLoggerEx", 0xefef003f },
496 { "RTLogLoggerExV", 0xefef0040 },
497 { "RTAssertMsg1", 0xefef0041 },
498 { "RTAssertMsg2", 0xefef0042 },
499 { "RTAssertMsg2V", 0xefef0043 },
500 { "SUPR0QueryVTCaps", 0xefef0044 },
501 };
502
503 /* fake r0 functions. */
504 g_pSupFunctions = (PSUPQUERYFUNCS)RTMemAllocZ(SUP_IOCTL_QUERY_FUNCS_SIZE(RT_ELEMENTS(s_aFakeFunctions)));
505 if (g_pSupFunctions)
506 {
507 g_pSupFunctions->u.Out.cFunctions = RT_ELEMENTS(s_aFakeFunctions);
508 memcpy(&g_pSupFunctions->u.Out.aFunctions[0], &s_aFakeFunctions[0], sizeof(s_aFakeFunctions));
509 g_pSession = (PSUPDRVSESSION)(void *)g_pSupFunctions;
510 if (ppSession)
511 *ppSession = g_pSession;
512
513 /* fake the GIP. */
514 g_pSUPGlobalInfoPage = (PSUPGLOBALINFOPAGE)RTMemPageAllocZ(PAGE_SIZE);
515 if (g_pSUPGlobalInfoPage)
516 {
517 g_pSUPGlobalInfoPageR0 = g_pSUPGlobalInfoPage;
518 g_HCPhysSUPGlobalInfoPage = NIL_RTHCPHYS & ~(RTHCPHYS)PAGE_OFFSET_MASK;
519 /* the page is supposed to be invalid, so don't set the magic. */
520 return VINF_SUCCESS;
521 }
522
523 RTMemFree(g_pSupFunctions);
524 g_pSupFunctions = NULL;
525 }
526 return VERR_NO_MEMORY;
527}
528
529
530SUPR3DECL(int) SUPR3Term(bool fForced)
531{
532 /*
533 * Verify state.
534 */
535 AssertMsg(g_cInits > 0, ("SUPR3Term() is called before SUPR3Init()!\n"));
536 if (g_cInits == 0)
537 return VERR_WRONG_ORDER;
538 if (g_cInits == 1 || fForced)
539 {
540 /*
541 * NULL the GIP pointer.
542 */
543 if (g_pSUPGlobalInfoPage)
544 {
545 ASMAtomicWriteNullPtr((void * volatile *)&g_pSUPGlobalInfoPage);
546 ASMAtomicWriteNullPtr((void * volatile *)&g_pSUPGlobalInfoPageR0);
547 ASMAtomicWriteU64(&g_HCPhysSUPGlobalInfoPage, NIL_RTHCPHYS);
548 /* just a little safe guard against threads using the page. */
549 RTThreadSleep(50);
550 }
551
552 /*
553 * Close the support driver.
554 */
555 int rc = suplibOsTerm(&g_supLibData);
556 if (rc)
557 return rc;
558
559 g_u32Cookie = 0;
560 g_u32SessionCookie = 0;
561 g_cInits = 0;
562 }
563 else
564 g_cInits--;
565
566 return 0;
567}
568
569
570SUPR3DECL(SUPPAGINGMODE) SUPR3GetPagingMode(void)
571{
572 /* fake */
573 if (RT_UNLIKELY(g_uSupFakeMode))
574#ifdef RT_ARCH_AMD64
575 return SUPPAGINGMODE_AMD64_GLOBAL_NX;
576#else
577 return SUPPAGINGMODE_32_BIT_GLOBAL;
578#endif
579
580 /*
581 * Issue IOCtl to the SUPDRV kernel module.
582 */
583 SUPGETPAGINGMODE Req;
584 Req.Hdr.u32Cookie = g_u32Cookie;
585 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
586 Req.Hdr.cbIn = SUP_IOCTL_GET_PAGING_MODE_SIZE_IN;
587 Req.Hdr.cbOut = SUP_IOCTL_GET_PAGING_MODE_SIZE_OUT;
588 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
589 Req.Hdr.rc = VERR_INTERNAL_ERROR;
590 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_GET_PAGING_MODE, &Req, SUP_IOCTL_GET_PAGING_MODE_SIZE);
591 if ( RT_FAILURE(rc)
592 || RT_FAILURE(Req.Hdr.rc))
593 {
594 LogRel(("SUPR3GetPagingMode: %Rrc %Rrc\n", rc, Req.Hdr.rc));
595 Req.u.Out.enmMode = SUPPAGINGMODE_INVALID;
596 }
597
598 return Req.u.Out.enmMode;
599}
600
601
602/**
603 * For later.
604 */
605static int supCallVMMR0ExFake(PVMR0 pVMR0, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
606{
607 AssertMsgFailed(("%d\n", uOperation)); NOREF(pVMR0); NOREF(uOperation); NOREF(u64Arg); NOREF(pReqHdr);
608 return VERR_NOT_SUPPORTED;
609}
610
611
612SUPR3DECL(int) SUPR3CallVMMR0Fast(PVMR0 pVMR0, unsigned uOperation, VMCPUID idCpu)
613{
614 NOREF(pVMR0);
615 if (RT_LIKELY(uOperation == SUP_VMMR0_DO_RAW_RUN))
616 return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_RAW_RUN, idCpu);
617 if (RT_LIKELY(uOperation == SUP_VMMR0_DO_HM_RUN))
618 return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_HM_RUN, idCpu);
619 if (RT_LIKELY(uOperation == SUP_VMMR0_DO_NOP))
620 return suplibOsIOCtlFast(&g_supLibData, SUP_IOCTL_FAST_DO_NOP, idCpu);
621
622 AssertMsgFailed(("%#x\n", uOperation));
623 return VERR_INTERNAL_ERROR;
624}
625
626
627SUPR3DECL(int) SUPR3CallVMMR0Ex(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
628{
629 /*
630 * The following operations don't belong here.
631 */
632 AssertMsgReturn( uOperation != SUP_VMMR0_DO_RAW_RUN
633 && uOperation != SUP_VMMR0_DO_HM_RUN
634 && uOperation != SUP_VMMR0_DO_NOP,
635 ("%#x\n", uOperation),
636 VERR_INTERNAL_ERROR);
637
638 /* fake */
639 if (RT_UNLIKELY(g_uSupFakeMode))
640 return supCallVMMR0ExFake(pVMR0, uOperation, u64Arg, pReqHdr);
641
642 int rc;
643 if (!pReqHdr)
644 {
645 /* no data. */
646 SUPCALLVMMR0 Req;
647 Req.Hdr.u32Cookie = g_u32Cookie;
648 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
649 Req.Hdr.cbIn = SUP_IOCTL_CALL_VMMR0_SIZE_IN(0);
650 Req.Hdr.cbOut = SUP_IOCTL_CALL_VMMR0_SIZE_OUT(0);
651 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
652 Req.Hdr.rc = VERR_INTERNAL_ERROR;
653 Req.u.In.pVMR0 = pVMR0;
654 Req.u.In.idCpu = idCpu;
655 Req.u.In.uOperation = uOperation;
656 Req.u.In.u64Arg = u64Arg;
657 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0(0), &Req, SUP_IOCTL_CALL_VMMR0_SIZE(0));
658 if (RT_SUCCESS(rc))
659 rc = Req.Hdr.rc;
660 }
661 else if (SUP_IOCTL_CALL_VMMR0_SIZE(pReqHdr->cbReq) < _4K) /* FreeBSD won't copy more than 4K. */
662 {
663 AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
664 AssertReturn(pReqHdr->u32Magic == SUPVMMR0REQHDR_MAGIC, VERR_INVALID_MAGIC);
665 const size_t cbReq = pReqHdr->cbReq;
666
667 PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)alloca(SUP_IOCTL_CALL_VMMR0_SIZE(cbReq));
668 pReq->Hdr.u32Cookie = g_u32Cookie;
669 pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
670 pReq->Hdr.cbIn = SUP_IOCTL_CALL_VMMR0_SIZE_IN(cbReq);
671 pReq->Hdr.cbOut = SUP_IOCTL_CALL_VMMR0_SIZE_OUT(cbReq);
672 pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
673 pReq->Hdr.rc = VERR_INTERNAL_ERROR;
674 pReq->u.In.pVMR0 = pVMR0;
675 pReq->u.In.idCpu = idCpu;
676 pReq->u.In.uOperation = uOperation;
677 pReq->u.In.u64Arg = u64Arg;
678 memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
679 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0(cbReq), pReq, SUP_IOCTL_CALL_VMMR0_SIZE(cbReq));
680 if (RT_SUCCESS(rc))
681 rc = pReq->Hdr.rc;
682 memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
683 }
684 else if (pReqHdr->cbReq <= _512K)
685 {
686 AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
687 AssertReturn(pReqHdr->u32Magic == SUPVMMR0REQHDR_MAGIC, VERR_INVALID_MAGIC);
688 const size_t cbReq = pReqHdr->cbReq;
689
690 PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)RTMemTmpAlloc(SUP_IOCTL_CALL_VMMR0_BIG_SIZE(cbReq));
691 pReq->Hdr.u32Cookie = g_u32Cookie;
692 pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
693 pReq->Hdr.cbIn = SUP_IOCTL_CALL_VMMR0_BIG_SIZE_IN(cbReq);
694 pReq->Hdr.cbOut = SUP_IOCTL_CALL_VMMR0_BIG_SIZE_OUT(cbReq);
695 pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
696 pReq->Hdr.rc = VERR_INTERNAL_ERROR;
697 pReq->u.In.pVMR0 = pVMR0;
698 pReq->u.In.idCpu = idCpu;
699 pReq->u.In.uOperation = uOperation;
700 pReq->u.In.u64Arg = u64Arg;
701 memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
702 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_VMMR0_BIG, pReq, SUP_IOCTL_CALL_VMMR0_BIG_SIZE(cbReq));
703 if (RT_SUCCESS(rc))
704 rc = pReq->Hdr.rc;
705 memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
706 RTMemTmpFree(pReq);
707 }
708 else
709 AssertMsgFailedReturn(("cbReq=%#x\n", pReqHdr->cbReq), VERR_OUT_OF_RANGE);
710 return rc;
711}
712
713
714SUPR3DECL(int) SUPR3CallVMMR0(PVMR0 pVMR0, VMCPUID idCpu, unsigned uOperation, void *pvArg)
715{
716 /*
717 * The following operations don't belong here.
718 */
719 AssertMsgReturn( uOperation != SUP_VMMR0_DO_RAW_RUN
720 && uOperation != SUP_VMMR0_DO_HM_RUN
721 && uOperation != SUP_VMMR0_DO_NOP,
722 ("%#x\n", uOperation),
723 VERR_INTERNAL_ERROR);
724 return SUPR3CallVMMR0Ex(pVMR0, idCpu, uOperation, (uintptr_t)pvArg, NULL);
725}
726
727
728SUPR3DECL(int) SUPR3SetVMForFastIOCtl(PVMR0 pVMR0)
729{
730 if (RT_UNLIKELY(g_uSupFakeMode))
731 return VINF_SUCCESS;
732
733 SUPSETVMFORFAST Req;
734 Req.Hdr.u32Cookie = g_u32Cookie;
735 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
736 Req.Hdr.cbIn = SUP_IOCTL_SET_VM_FOR_FAST_SIZE_IN;
737 Req.Hdr.cbOut = SUP_IOCTL_SET_VM_FOR_FAST_SIZE_OUT;
738 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
739 Req.Hdr.rc = VERR_INTERNAL_ERROR;
740 Req.u.In.pVMR0 = pVMR0;
741 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_SET_VM_FOR_FAST, &Req, SUP_IOCTL_SET_VM_FOR_FAST_SIZE);
742 if (RT_SUCCESS(rc))
743 rc = Req.Hdr.rc;
744 return rc;
745}
746
747
748SUPR3DECL(int) SUPR3CallR0Service(const char *pszService, size_t cchService, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr)
749{
750 AssertReturn(cchService < RT_SIZEOFMEMB(SUPCALLSERVICE, u.In.szName), VERR_INVALID_PARAMETER);
751 Assert(strlen(pszService) == cchService);
752
753 /* fake */
754 if (RT_UNLIKELY(g_uSupFakeMode))
755 return VERR_NOT_SUPPORTED;
756
757 int rc;
758 if (!pReqHdr)
759 {
760 /* no data. */
761 SUPCALLSERVICE Req;
762 Req.Hdr.u32Cookie = g_u32Cookie;
763 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
764 Req.Hdr.cbIn = SUP_IOCTL_CALL_SERVICE_SIZE_IN(0);
765 Req.Hdr.cbOut = SUP_IOCTL_CALL_SERVICE_SIZE_OUT(0);
766 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
767 Req.Hdr.rc = VERR_INTERNAL_ERROR;
768 memcpy(Req.u.In.szName, pszService, cchService);
769 Req.u.In.szName[cchService] = '\0';
770 Req.u.In.uOperation = uOperation;
771 Req.u.In.u64Arg = u64Arg;
772 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_SERVICE(0), &Req, SUP_IOCTL_CALL_SERVICE_SIZE(0));
773 if (RT_SUCCESS(rc))
774 rc = Req.Hdr.rc;
775 }
776 else if (SUP_IOCTL_CALL_SERVICE_SIZE(pReqHdr->cbReq) < _4K) /* FreeBSD won't copy more than 4K. */
777 {
778 AssertPtrReturn(pReqHdr, VERR_INVALID_POINTER);
779 AssertReturn(pReqHdr->u32Magic == SUPR0SERVICEREQHDR_MAGIC, VERR_INVALID_MAGIC);
780 const size_t cbReq = pReqHdr->cbReq;
781
782 PSUPCALLSERVICE pReq = (PSUPCALLSERVICE)alloca(SUP_IOCTL_CALL_SERVICE_SIZE(cbReq));
783 pReq->Hdr.u32Cookie = g_u32Cookie;
784 pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
785 pReq->Hdr.cbIn = SUP_IOCTL_CALL_SERVICE_SIZE_IN(cbReq);
786 pReq->Hdr.cbOut = SUP_IOCTL_CALL_SERVICE_SIZE_OUT(cbReq);
787 pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
788 pReq->Hdr.rc = VERR_INTERNAL_ERROR;
789 memcpy(pReq->u.In.szName, pszService, cchService);
790 pReq->u.In.szName[cchService] = '\0';
791 pReq->u.In.uOperation = uOperation;
792 pReq->u.In.u64Arg = u64Arg;
793 memcpy(&pReq->abReqPkt[0], pReqHdr, cbReq);
794 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CALL_SERVICE(cbReq), pReq, SUP_IOCTL_CALL_SERVICE_SIZE(cbReq));
795 if (RT_SUCCESS(rc))
796 rc = pReq->Hdr.rc;
797 memcpy(pReqHdr, &pReq->abReqPkt[0], cbReq);
798 }
799 else /** @todo may have to remove the size limits one this request... */
800 AssertMsgFailedReturn(("cbReq=%#x\n", pReqHdr->cbReq), VERR_INTERNAL_ERROR);
801 return rc;
802}
803
804
805/**
806 * Worker for the SUPR3Logger* APIs.
807 *
808 * @returns VBox status code.
809 * @param enmWhich Which logger.
810 * @param fWhat What to do with the logger.
811 * @param pszFlags The flags settings.
812 * @param pszGroups The groups settings.
813 * @param pszDest The destination specificier.
814 */
815static int supR3LoggerSettings(SUPLOGGER enmWhich, uint32_t fWhat, const char *pszFlags, const char *pszGroups, const char *pszDest)
816{
817 uint32_t const cchFlags = pszFlags ? (uint32_t)strlen(pszFlags) : 0;
818 uint32_t const cchGroups = pszGroups ? (uint32_t)strlen(pszGroups) : 0;
819 uint32_t const cchDest = pszDest ? (uint32_t)strlen(pszDest) : 0;
820 uint32_t const cbStrTab = cchFlags + !!cchFlags
821 + cchGroups + !!cchGroups
822 + cchDest + !!cchDest
823 + (!cchFlags && !cchGroups && !cchDest);
824
825 PSUPLOGGERSETTINGS pReq = (PSUPLOGGERSETTINGS)alloca(SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab));
826 pReq->Hdr.u32Cookie = g_u32Cookie;
827 pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
828 pReq->Hdr.cbIn = SUP_IOCTL_LOGGER_SETTINGS_SIZE_IN(cbStrTab);
829 pReq->Hdr.cbOut = SUP_IOCTL_LOGGER_SETTINGS_SIZE_OUT;
830 pReq->Hdr.fFlags= SUPREQHDR_FLAGS_DEFAULT;
831 pReq->Hdr.rc = VERR_INTERNAL_ERROR;
832 switch (enmWhich)
833 {
834 case SUPLOGGER_DEBUG: pReq->u.In.fWhich = SUPLOGGERSETTINGS_WHICH_DEBUG; break;
835 case SUPLOGGER_RELEASE: pReq->u.In.fWhich = SUPLOGGERSETTINGS_WHICH_RELEASE; break;
836 default:
837 return VERR_INVALID_PARAMETER;
838 }
839 pReq->u.In.fWhat = fWhat;
840
841 uint32_t off = 0;
842 if (cchFlags)
843 {
844 pReq->u.In.offFlags = off;
845 memcpy(&pReq->u.In.szStrings[off], pszFlags, cchFlags + 1);
846 off += cchFlags + 1;
847 }
848 else
849 pReq->u.In.offFlags = cbStrTab - 1;
850
851 if (cchGroups)
852 {
853 pReq->u.In.offGroups = off;
854 memcpy(&pReq->u.In.szStrings[off], pszGroups, cchGroups + 1);
855 off += cchGroups + 1;
856 }
857 else
858 pReq->u.In.offGroups = cbStrTab - 1;
859
860 if (cchDest)
861 {
862 pReq->u.In.offDestination = off;
863 memcpy(&pReq->u.In.szStrings[off], pszDest, cchDest + 1);
864 off += cchDest + 1;
865 }
866 else
867 pReq->u.In.offDestination = cbStrTab - 1;
868
869 if (!off)
870 {
871 pReq->u.In.szStrings[0] = '\0';
872 off++;
873 }
874 Assert(off == cbStrTab);
875 Assert(pReq->u.In.szStrings[cbStrTab - 1] == '\0');
876
877
878 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOGGER_SETTINGS(cbStrTab), pReq, SUP_IOCTL_LOGGER_SETTINGS_SIZE(cbStrTab));
879 if (RT_SUCCESS(rc))
880 rc = pReq->Hdr.rc;
881 return rc;
882}
883
884
885SUPR3DECL(int) SUPR3LoggerSettings(SUPLOGGER enmWhich, const char *pszFlags, const char *pszGroups, const char *pszDest)
886{
887 return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_SETTINGS, pszFlags, pszGroups, pszDest);
888}
889
890
891SUPR3DECL(int) SUPR3LoggerCreate(SUPLOGGER enmWhich, const char *pszFlags, const char *pszGroups, const char *pszDest)
892{
893 return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_CREATE, pszFlags, pszGroups, pszDest);
894}
895
896
897SUPR3DECL(int) SUPR3LoggerDestroy(SUPLOGGER enmWhich)
898{
899 return supR3LoggerSettings(enmWhich, SUPLOGGERSETTINGS_WHAT_DESTROY, NULL, NULL, NULL);
900}
901
902
903SUPR3DECL(int) SUPR3PageAlloc(size_t cPages, void **ppvPages)
904{
905 /*
906 * Validate.
907 */
908 AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
909 *ppvPages = NULL;
910 AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
911
912 /*
913 * Call OS specific worker.
914 */
915 return suplibOsPageAlloc(&g_supLibData, cPages, ppvPages);
916}
917
918
919SUPR3DECL(int) SUPR3PageFree(void *pvPages, size_t cPages)
920{
921 /*
922 * Validate.
923 */
924 AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
925 AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
926
927 /*
928 * Call OS specific worker.
929 */
930 return suplibOsPageFree(&g_supLibData, pvPages, cPages);
931}
932
933
934/**
935 * Locks down the physical memory backing a virtual memory
936 * range in the current process.
937 *
938 * @returns VBox status code.
939 * @param pvStart Start of virtual memory range.
940 * Must be page aligned.
941 * @param cPages Number of pages.
942 * @param paPages Where to store the physical page addresses returned.
943 * On entry this will point to an array of with cbMemory >> PAGE_SHIFT entries.
944 */
945SUPR3DECL(int) supR3PageLock(void *pvStart, size_t cPages, PSUPPAGE paPages)
946{
947 /*
948 * Validate.
949 */
950 AssertPtr(pvStart);
951 AssertMsg(RT_ALIGN_P(pvStart, PAGE_SIZE) == pvStart, ("pvStart (%p) must be page aligned\n", pvStart));
952 AssertPtr(paPages);
953
954 /* fake */
955 if (RT_UNLIKELY(g_uSupFakeMode))
956 {
957 RTHCPHYS Phys = (uintptr_t)pvStart + PAGE_SIZE * 1024;
958 size_t iPage = cPages;
959 while (iPage-- > 0)
960 paPages[iPage].Phys = Phys + (iPage << PAGE_SHIFT);
961 return VINF_SUCCESS;
962 }
963
964 /*
965 * Issue IOCtl to the SUPDRV kernel module.
966 */
967 int rc;
968 PSUPPAGELOCK pReq = (PSUPPAGELOCK)RTMemTmpAllocZ(SUP_IOCTL_PAGE_LOCK_SIZE(cPages));
969 if (RT_LIKELY(pReq))
970 {
971 pReq->Hdr.u32Cookie = g_u32Cookie;
972 pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
973 pReq->Hdr.cbIn = SUP_IOCTL_PAGE_LOCK_SIZE_IN;
974 pReq->Hdr.cbOut = SUP_IOCTL_PAGE_LOCK_SIZE_OUT(cPages);
975 pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC | SUPREQHDR_FLAGS_EXTRA_OUT;
976 pReq->Hdr.rc = VERR_INTERNAL_ERROR;
977 pReq->u.In.pvR3 = pvStart;
978 pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
979 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_LOCK, pReq, SUP_IOCTL_PAGE_LOCK_SIZE(cPages));
980 if (RT_SUCCESS(rc))
981 rc = pReq->Hdr.rc;
982 if (RT_SUCCESS(rc))
983 {
984 for (uint32_t iPage = 0; iPage < cPages; iPage++)
985 {
986 paPages[iPage].uReserved = 0;
987 paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
988 Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
989 }
990 }
991 RTMemTmpFree(pReq);
992 }
993 else
994 rc = VERR_NO_TMP_MEMORY;
995
996 return rc;
997}
998
999
1000/**
1001 * Releases locked down pages.
1002 *
1003 * @returns VBox status code.
1004 * @param pvStart Start of virtual memory range previously locked
1005 * down by SUPPageLock().
1006 */
1007SUPR3DECL(int) supR3PageUnlock(void *pvStart)
1008{
1009 /*
1010 * Validate.
1011 */
1012 AssertPtr(pvStart);
1013 AssertMsg(RT_ALIGN_P(pvStart, PAGE_SIZE) == pvStart, ("pvStart (%p) must be page aligned\n", pvStart));
1014
1015 /* fake */
1016 if (RT_UNLIKELY(g_uSupFakeMode))
1017 return VINF_SUCCESS;
1018
1019 /*
1020 * Issue IOCtl to the SUPDRV kernel module.
1021 */
1022 SUPPAGEUNLOCK Req;
1023 Req.Hdr.u32Cookie = g_u32Cookie;
1024 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1025 Req.Hdr.cbIn = SUP_IOCTL_PAGE_UNLOCK_SIZE_IN;
1026 Req.Hdr.cbOut = SUP_IOCTL_PAGE_UNLOCK_SIZE_OUT;
1027 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1028 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1029 Req.u.In.pvR3 = pvStart;
1030 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_UNLOCK, &Req, SUP_IOCTL_PAGE_UNLOCK_SIZE);
1031 if (RT_SUCCESS(rc))
1032 rc = Req.Hdr.rc;
1033 return rc;
1034}
1035
1036
1037SUPR3DECL(int) SUPR3LockDownLoader(PRTERRINFO pErrInfo)
1038{
1039 /* fake */
1040 if (RT_UNLIKELY(g_uSupFakeMode))
1041 return VINF_SUCCESS;
1042
1043 /*
1044 * Lock down the module loader interface.
1045 */
1046 SUPREQHDR ReqHdr;
1047 ReqHdr.u32Cookie = g_u32Cookie;
1048 ReqHdr.u32SessionCookie = g_u32SessionCookie;
1049 ReqHdr.cbIn = SUP_IOCTL_LDR_LOCK_DOWN_SIZE_IN;
1050 ReqHdr.cbOut = SUP_IOCTL_LDR_LOCK_DOWN_SIZE_OUT;
1051 ReqHdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1052 ReqHdr.rc = VERR_INTERNAL_ERROR;
1053 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LDR_LOCK_DOWN, &ReqHdr, SUP_IOCTL_LDR_LOCK_DOWN_SIZE);
1054 if (RT_FAILURE(rc))
1055 return RTErrInfoSetF(pErrInfo, rc,
1056 "SUPR3LockDownLoader: SUP_IOCTL_LDR_LOCK_DOWN ioctl returned %Rrc", rc);
1057
1058 return ReqHdr.rc;
1059}
1060
1061
1062/**
1063 * Fallback for SUPR3PageAllocEx on systems where RTR0MemObjPhysAllocNC isn't
1064 * supported.
1065 */
1066static int supPagePageAllocNoKernelFallback(size_t cPages, void **ppvPages, PSUPPAGE paPages)
1067{
1068 int rc = suplibOsPageAlloc(&g_supLibData, cPages, ppvPages);
1069 if (RT_SUCCESS(rc))
1070 {
1071 if (!paPages)
1072 paPages = (PSUPPAGE)alloca(sizeof(paPages[0]) * cPages);
1073 rc = supR3PageLock(*ppvPages, cPages, paPages);
1074 if (RT_FAILURE(rc))
1075 suplibOsPageFree(&g_supLibData, *ppvPages, cPages);
1076 }
1077 return rc;
1078}
1079
1080
1081SUPR3DECL(int) SUPR3PageAllocEx(size_t cPages, uint32_t fFlags, void **ppvPages, PRTR0PTR pR0Ptr, PSUPPAGE paPages)
1082{
1083 /*
1084 * Validate.
1085 */
1086 AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
1087 *ppvPages = NULL;
1088 AssertPtrNullReturn(pR0Ptr, VERR_INVALID_POINTER);
1089 if (pR0Ptr)
1090 *pR0Ptr = NIL_RTR0PTR;
1091 AssertPtrNullReturn(paPages, VERR_INVALID_POINTER);
1092 AssertMsgReturn(cPages > 0 && cPages <= VBOX_MAX_ALLOC_PAGE_COUNT, ("cPages=%zu\n", cPages), VERR_PAGE_COUNT_OUT_OF_RANGE);
1093 AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
1094
1095 /* fake */
1096 if (RT_UNLIKELY(g_uSupFakeMode))
1097 {
1098 void *pv = RTMemPageAllocZ(cPages * PAGE_SIZE);
1099 if (!pv)
1100 return VERR_NO_MEMORY;
1101 *ppvPages = pv;
1102 if (pR0Ptr)
1103 *pR0Ptr = (RTR0PTR)pv;
1104 if (paPages)
1105 for (size_t iPage = 0; iPage < cPages; iPage++)
1106 {
1107 paPages[iPage].uReserved = 0;
1108 paPages[iPage].Phys = (iPage + 4321) << PAGE_SHIFT;
1109 Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1110 }
1111 return VINF_SUCCESS;
1112 }
1113
1114 /* Check that we've got a kernel connection so rtMemSaferSupR3AllocPages
1115 can do fallback without first having to hit assertions. */
1116 if (g_supLibData.hDevice != SUP_HDEVICE_NIL)
1117 { /* likely */ }
1118 else
1119 return VERR_WRONG_ORDER;
1120
1121 /*
1122 * Use fallback for non-R0 mapping?
1123 */
1124 if ( !pR0Ptr
1125 && !g_fSupportsPageAllocNoKernel)
1126 return supPagePageAllocNoKernelFallback(cPages, ppvPages, paPages);
1127
1128 /*
1129 * Issue IOCtl to the SUPDRV kernel module.
1130 */
1131 int rc;
1132 PSUPPAGEALLOCEX pReq = (PSUPPAGEALLOCEX)RTMemTmpAllocZ(SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages));
1133 if (pReq)
1134 {
1135 pReq->Hdr.u32Cookie = g_u32Cookie;
1136 pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1137 pReq->Hdr.cbIn = SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN;
1138 pReq->Hdr.cbOut = SUP_IOCTL_PAGE_ALLOC_EX_SIZE_OUT(cPages);
1139 pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC | SUPREQHDR_FLAGS_EXTRA_OUT;
1140 pReq->Hdr.rc = VERR_INTERNAL_ERROR;
1141 pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
1142 pReq->u.In.fKernelMapping = pR0Ptr != NULL;
1143 pReq->u.In.fUserMapping = true;
1144 pReq->u.In.fReserved0 = false;
1145 pReq->u.In.fReserved1 = false;
1146 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_ALLOC_EX, pReq, SUP_IOCTL_PAGE_ALLOC_EX_SIZE(cPages));
1147 if (RT_SUCCESS(rc))
1148 {
1149 rc = pReq->Hdr.rc;
1150 if (RT_SUCCESS(rc))
1151 {
1152 *ppvPages = pReq->u.Out.pvR3;
1153 if (pR0Ptr)
1154 *pR0Ptr = pReq->u.Out.pvR0;
1155 if (paPages)
1156 for (size_t iPage = 0; iPage < cPages; iPage++)
1157 {
1158 paPages[iPage].uReserved = 0;
1159 paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
1160 Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1161 }
1162#ifdef RT_OS_DARWIN /* HACK ALERT! */
1163 supR3TouchPages(pReq->u.Out.pvR3, cPages);
1164#endif
1165 }
1166 else if ( rc == VERR_NOT_SUPPORTED
1167 && !pR0Ptr)
1168 {
1169 g_fSupportsPageAllocNoKernel = false;
1170 rc = supPagePageAllocNoKernelFallback(cPages, ppvPages, paPages);
1171 }
1172 }
1173
1174 RTMemTmpFree(pReq);
1175 }
1176 else
1177 rc = VERR_NO_TMP_MEMORY;
1178 return rc;
1179
1180}
1181
1182
1183SUPR3DECL(int) SUPR3PageMapKernel(void *pvR3, uint32_t off, uint32_t cb, uint32_t fFlags, PRTR0PTR pR0Ptr)
1184{
1185 /*
1186 * Validate.
1187 */
1188 AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
1189 AssertPtrReturn(pR0Ptr, VERR_INVALID_POINTER);
1190 Assert(!(off & PAGE_OFFSET_MASK));
1191 Assert(!(cb & PAGE_OFFSET_MASK) && cb);
1192 Assert(!fFlags);
1193 *pR0Ptr = NIL_RTR0PTR;
1194
1195 /* fake */
1196 if (RT_UNLIKELY(g_uSupFakeMode))
1197 return VERR_NOT_SUPPORTED;
1198
1199 /*
1200 * Issue IOCtl to the SUPDRV kernel module.
1201 */
1202 SUPPAGEMAPKERNEL Req;
1203 Req.Hdr.u32Cookie = g_u32Cookie;
1204 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1205 Req.Hdr.cbIn = SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_IN;
1206 Req.Hdr.cbOut = SUP_IOCTL_PAGE_MAP_KERNEL_SIZE_OUT;
1207 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1208 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1209 Req.u.In.pvR3 = pvR3;
1210 Req.u.In.offSub = off;
1211 Req.u.In.cbSub = cb;
1212 Req.u.In.fFlags = fFlags;
1213 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_MAP_KERNEL, &Req, SUP_IOCTL_PAGE_MAP_KERNEL_SIZE);
1214 if (RT_SUCCESS(rc))
1215 rc = Req.Hdr.rc;
1216 if (RT_SUCCESS(rc))
1217 *pR0Ptr = Req.u.Out.pvR0;
1218 return rc;
1219}
1220
1221
1222SUPR3DECL(int) SUPR3PageProtect(void *pvR3, RTR0PTR R0Ptr, uint32_t off, uint32_t cb, uint32_t fProt)
1223{
1224 /*
1225 * Validate.
1226 */
1227 AssertPtrReturn(pvR3, VERR_INVALID_POINTER);
1228 Assert(!(off & PAGE_OFFSET_MASK));
1229 Assert(!(cb & PAGE_OFFSET_MASK) && cb);
1230 AssertReturn(!(fProt & ~(RTMEM_PROT_NONE | RTMEM_PROT_READ | RTMEM_PROT_WRITE | RTMEM_PROT_EXEC)), VERR_INVALID_PARAMETER);
1231
1232 /* fake */
1233 if (RT_UNLIKELY(g_uSupFakeMode))
1234 return RTMemProtect((uint8_t *)pvR3 + off, cb, fProt);
1235
1236 /*
1237 * Some OSes can do this from ring-3, so try that before we
1238 * issue the IOCtl to the SUPDRV kernel module.
1239 * (Yea, this isn't very nice, but just try get the job done for now.)
1240 */
1241#if !defined(RT_OS_SOLARIS)
1242 RTMemProtect((uint8_t *)pvR3 + off, cb, fProt);
1243#endif
1244
1245 SUPPAGEPROTECT Req;
1246 Req.Hdr.u32Cookie = g_u32Cookie;
1247 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1248 Req.Hdr.cbIn = SUP_IOCTL_PAGE_PROTECT_SIZE_IN;
1249 Req.Hdr.cbOut = SUP_IOCTL_PAGE_PROTECT_SIZE_OUT;
1250 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1251 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1252 Req.u.In.pvR3 = pvR3;
1253 Req.u.In.pvR0 = R0Ptr;
1254 Req.u.In.offSub = off;
1255 Req.u.In.cbSub = cb;
1256 Req.u.In.fProt = fProt;
1257 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_PROTECT, &Req, SUP_IOCTL_PAGE_PROTECT_SIZE);
1258 if (RT_SUCCESS(rc))
1259 rc = Req.Hdr.rc;
1260 return rc;
1261}
1262
1263
1264SUPR3DECL(int) SUPR3PageFreeEx(void *pvPages, size_t cPages)
1265{
1266 /*
1267 * Validate.
1268 */
1269 AssertPtrReturn(pvPages, VERR_INVALID_POINTER);
1270 AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1271
1272 /* fake */
1273 if (RT_UNLIKELY(g_uSupFakeMode))
1274 {
1275 RTMemPageFree(pvPages, cPages * PAGE_SIZE);
1276 return VINF_SUCCESS;
1277 }
1278
1279 /*
1280 * Try normal free first, then if it fails check if we're using the fallback
1281 * for the allocations without kernel mappings and attempt unlocking it.
1282 */
1283 NOREF(cPages);
1284 SUPPAGEFREE Req;
1285 Req.Hdr.u32Cookie = g_u32Cookie;
1286 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1287 Req.Hdr.cbIn = SUP_IOCTL_PAGE_FREE_SIZE_IN;
1288 Req.Hdr.cbOut = SUP_IOCTL_PAGE_FREE_SIZE_OUT;
1289 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1290 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1291 Req.u.In.pvR3 = pvPages;
1292 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_PAGE_FREE, &Req, SUP_IOCTL_PAGE_FREE_SIZE);
1293 if (RT_SUCCESS(rc))
1294 {
1295 rc = Req.Hdr.rc;
1296 if ( rc == VERR_INVALID_PARAMETER
1297 && !g_fSupportsPageAllocNoKernel)
1298 {
1299 int rc2 = supR3PageUnlock(pvPages);
1300 if (RT_SUCCESS(rc2))
1301 rc = suplibOsPageFree(&g_supLibData, pvPages, cPages);
1302 }
1303 }
1304 return rc;
1305}
1306
1307
1308SUPR3DECL(void *) SUPR3ContAlloc(size_t cPages, PRTR0PTR pR0Ptr, PRTHCPHYS pHCPhys)
1309{
1310 /*
1311 * Validate.
1312 */
1313 AssertPtrReturn(pHCPhys, NULL);
1314 *pHCPhys = NIL_RTHCPHYS;
1315 AssertPtrNullReturn(pR0Ptr, NULL);
1316 if (pR0Ptr)
1317 *pR0Ptr = NIL_RTR0PTR;
1318 AssertPtrNullReturn(pHCPhys, NULL);
1319 AssertMsgReturn(cPages > 0 && cPages < 256, ("cPages=%d must be > 0 and < 256\n", cPages), NULL);
1320
1321 /* fake */
1322 if (RT_UNLIKELY(g_uSupFakeMode))
1323 {
1324 void *pv = RTMemPageAllocZ(cPages * PAGE_SIZE);
1325 if (pR0Ptr)
1326 *pR0Ptr = (RTR0PTR)pv;
1327 if (pHCPhys)
1328 *pHCPhys = (uintptr_t)pv + (PAGE_SHIFT * 1024);
1329 return pv;
1330 }
1331
1332 /*
1333 * Issue IOCtl to the SUPDRV kernel module.
1334 */
1335 SUPCONTALLOC Req;
1336 Req.Hdr.u32Cookie = g_u32Cookie;
1337 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1338 Req.Hdr.cbIn = SUP_IOCTL_CONT_ALLOC_SIZE_IN;
1339 Req.Hdr.cbOut = SUP_IOCTL_CONT_ALLOC_SIZE_OUT;
1340 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1341 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1342 Req.u.In.cPages = (uint32_t)cPages;
1343 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CONT_ALLOC, &Req, SUP_IOCTL_CONT_ALLOC_SIZE);
1344 if ( RT_SUCCESS(rc)
1345 && RT_SUCCESS(Req.Hdr.rc))
1346 {
1347 *pHCPhys = Req.u.Out.HCPhys;
1348 if (pR0Ptr)
1349 *pR0Ptr = Req.u.Out.pvR0;
1350#ifdef RT_OS_DARWIN /* HACK ALERT! */
1351 supR3TouchPages(Req.u.Out.pvR3, cPages);
1352#endif
1353 return Req.u.Out.pvR3;
1354 }
1355
1356 return NULL;
1357}
1358
1359
1360SUPR3DECL(int) SUPR3ContFree(void *pv, size_t cPages)
1361{
1362 /*
1363 * Validate.
1364 */
1365 if (!pv)
1366 return VINF_SUCCESS;
1367 AssertPtrReturn(pv, VERR_INVALID_POINTER);
1368 AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1369
1370 /* fake */
1371 if (RT_UNLIKELY(g_uSupFakeMode))
1372 {
1373 RTMemPageFree(pv, cPages * PAGE_SIZE);
1374 return VINF_SUCCESS;
1375 }
1376
1377 /*
1378 * Issue IOCtl to the SUPDRV kernel module.
1379 */
1380 SUPCONTFREE Req;
1381 Req.Hdr.u32Cookie = g_u32Cookie;
1382 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1383 Req.Hdr.cbIn = SUP_IOCTL_CONT_FREE_SIZE_IN;
1384 Req.Hdr.cbOut = SUP_IOCTL_CONT_FREE_SIZE_OUT;
1385 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1386 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1387 Req.u.In.pvR3 = pv;
1388 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_CONT_FREE, &Req, SUP_IOCTL_CONT_FREE_SIZE);
1389 if (RT_SUCCESS(rc))
1390 rc = Req.Hdr.rc;
1391 return rc;
1392}
1393
1394
1395SUPR3DECL(int) SUPR3LowAlloc(size_t cPages, void **ppvPages, PRTR0PTR ppvPagesR0, PSUPPAGE paPages)
1396{
1397 /*
1398 * Validate.
1399 */
1400 AssertPtrReturn(ppvPages, VERR_INVALID_POINTER);
1401 *ppvPages = NULL;
1402 AssertPtrReturn(paPages, VERR_INVALID_POINTER);
1403 AssertMsgReturn(cPages > 0 && cPages < 256, ("cPages=%d must be > 0 and < 256\n", cPages), VERR_PAGE_COUNT_OUT_OF_RANGE);
1404
1405 /* fake */
1406 if (RT_UNLIKELY(g_uSupFakeMode))
1407 {
1408 *ppvPages = RTMemPageAllocZ((size_t)cPages * PAGE_SIZE);
1409 if (!*ppvPages)
1410 return VERR_NO_LOW_MEMORY;
1411
1412 /* fake physical addresses. */
1413 RTHCPHYS Phys = (uintptr_t)*ppvPages + PAGE_SIZE * 1024;
1414 size_t iPage = cPages;
1415 while (iPage-- > 0)
1416 paPages[iPage].Phys = Phys + (iPage << PAGE_SHIFT);
1417 return VINF_SUCCESS;
1418 }
1419
1420 /*
1421 * Issue IOCtl to the SUPDRV kernel module.
1422 */
1423 int rc;
1424 PSUPLOWALLOC pReq = (PSUPLOWALLOC)RTMemTmpAllocZ(SUP_IOCTL_LOW_ALLOC_SIZE(cPages));
1425 if (pReq)
1426 {
1427 pReq->Hdr.u32Cookie = g_u32Cookie;
1428 pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
1429 pReq->Hdr.cbIn = SUP_IOCTL_LOW_ALLOC_SIZE_IN;
1430 pReq->Hdr.cbOut = SUP_IOCTL_LOW_ALLOC_SIZE_OUT(cPages);
1431 pReq->Hdr.fFlags = SUPREQHDR_FLAGS_MAGIC | SUPREQHDR_FLAGS_EXTRA_OUT;
1432 pReq->Hdr.rc = VERR_INTERNAL_ERROR;
1433 pReq->u.In.cPages = (uint32_t)cPages; AssertRelease(pReq->u.In.cPages == cPages);
1434 rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOW_ALLOC, pReq, SUP_IOCTL_LOW_ALLOC_SIZE(cPages));
1435 if (RT_SUCCESS(rc))
1436 rc = pReq->Hdr.rc;
1437 if (RT_SUCCESS(rc))
1438 {
1439 *ppvPages = pReq->u.Out.pvR3;
1440 if (ppvPagesR0)
1441 *ppvPagesR0 = pReq->u.Out.pvR0;
1442 if (paPages)
1443 for (size_t iPage = 0; iPage < cPages; iPage++)
1444 {
1445 paPages[iPage].uReserved = 0;
1446 paPages[iPage].Phys = pReq->u.Out.aPages[iPage];
1447 Assert(!(paPages[iPage].Phys & ~X86_PTE_PAE_PG_MASK));
1448 Assert(paPages[iPage].Phys <= UINT32_C(0xfffff000));
1449 }
1450#ifdef RT_OS_DARWIN /* HACK ALERT! */
1451 supR3TouchPages(pReq->u.Out.pvR3, cPages);
1452#endif
1453 }
1454 RTMemTmpFree(pReq);
1455 }
1456 else
1457 rc = VERR_NO_TMP_MEMORY;
1458
1459 return rc;
1460}
1461
1462
1463SUPR3DECL(int) SUPR3LowFree(void *pv, size_t cPages)
1464{
1465 /*
1466 * Validate.
1467 */
1468 if (!pv)
1469 return VINF_SUCCESS;
1470 AssertPtrReturn(pv, VERR_INVALID_POINTER);
1471 AssertReturn(cPages > 0, VERR_PAGE_COUNT_OUT_OF_RANGE);
1472
1473 /* fake */
1474 if (RT_UNLIKELY(g_uSupFakeMode))
1475 {
1476 RTMemPageFree(pv, cPages * PAGE_SIZE);
1477 return VINF_SUCCESS;
1478 }
1479
1480 /*
1481 * Issue IOCtl to the SUPDRV kernel module.
1482 */
1483 SUPCONTFREE Req;
1484 Req.Hdr.u32Cookie = g_u32Cookie;
1485 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1486 Req.Hdr.cbIn = SUP_IOCTL_LOW_FREE_SIZE_IN;
1487 Req.Hdr.cbOut = SUP_IOCTL_LOW_FREE_SIZE_OUT;
1488 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1489 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1490 Req.u.In.pvR3 = pv;
1491 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_LOW_FREE, &Req, SUP_IOCTL_LOW_FREE_SIZE);
1492 if (RT_SUCCESS(rc))
1493 rc = Req.Hdr.rc;
1494 return rc;
1495}
1496
1497
1498SUPR3DECL(int) SUPR3HardenedVerifyInit(void)
1499{
1500#ifdef RT_OS_WINDOWS
1501 if (g_cInits == 0)
1502 return suplibOsHardenedVerifyInit();
1503#endif
1504 return VINF_SUCCESS;
1505}
1506
1507
1508SUPR3DECL(int) SUPR3HardenedVerifyTerm(void)
1509{
1510#ifdef RT_OS_WINDOWS
1511 if (g_cInits == 0)
1512 return suplibOsHardenedVerifyTerm();
1513#endif
1514 return VINF_SUCCESS;
1515}
1516
1517
1518SUPR3DECL(int) SUPR3HardenedVerifyFile(const char *pszFilename, const char *pszMsg, PRTFILE phFile)
1519{
1520 /*
1521 * Quick input validation.
1522 */
1523 AssertPtr(pszFilename);
1524 AssertPtr(pszMsg);
1525 AssertReturn(!phFile, VERR_NOT_IMPLEMENTED); /** @todo Implement this. The deal is that we make sure the
1526 file is the same we verified after opening it. */
1527 RT_NOREF2(pszFilename, pszMsg);
1528
1529 /*
1530 * Only do the actual check in hardened builds.
1531 */
1532#ifdef VBOX_WITH_HARDENING
1533 int rc = supR3HardenedVerifyFixedFile(pszFilename, false /* fFatal */);
1534 if (RT_FAILURE(rc))
1535 LogRel(("SUPR3HardenedVerifyFile: %s: Verification of \"%s\" failed, rc=%Rrc\n", pszMsg, pszFilename, rc));
1536 return rc;
1537#else
1538 return VINF_SUCCESS;
1539#endif
1540}
1541
1542
1543SUPR3DECL(int) SUPR3HardenedVerifySelf(const char *pszArgv0, bool fInternal, PRTERRINFO pErrInfo)
1544{
1545 /*
1546 * Quick input validation.
1547 */
1548 AssertPtr(pszArgv0);
1549 RTErrInfoClear(pErrInfo);
1550
1551 /*
1552 * Get the executable image path as we need it for all the tests here.
1553 */
1554 char szExecPath[RTPATH_MAX];
1555 if (!RTProcGetExecutablePath(szExecPath, sizeof(szExecPath)))
1556 return RTErrInfoSet(pErrInfo, VERR_INTERNAL_ERROR_2, "RTProcGetExecutablePath failed");
1557
1558 int rc;
1559 if (fInternal)
1560 {
1561 /*
1562 * Internal applications must be launched directly without any PATH
1563 * searching involved.
1564 */
1565 if (RTPathCompare(pszArgv0, szExecPath) != 0)
1566 return RTErrInfoSetF(pErrInfo, VERR_SUPLIB_INVALID_ARGV0_INTERNAL,
1567 "argv[0] does not match the executable image path: '%s' != '%s'", pszArgv0, szExecPath);
1568
1569 /*
1570 * Internal applications must reside in or under the
1571 * RTPathAppPrivateArch directory.
1572 */
1573 char szAppPrivateArch[RTPATH_MAX];
1574 rc = RTPathAppPrivateArch(szAppPrivateArch, sizeof(szAppPrivateArch));
1575 if (RT_FAILURE(rc))
1576 return RTErrInfoSetF(pErrInfo, VERR_SUPLIB_INVALID_ARGV0_INTERNAL,
1577 "RTPathAppPrivateArch failed with rc=%Rrc", rc);
1578 size_t cchAppPrivateArch = strlen(szAppPrivateArch);
1579 if ( cchAppPrivateArch >= strlen(szExecPath)
1580 || !RTPATH_IS_SLASH(szExecPath[cchAppPrivateArch]))
1581 return RTErrInfoSet(pErrInfo, VERR_SUPLIB_INVALID_INTERNAL_APP_DIR,
1582 "Internal executable does reside under RTPathAppPrivateArch");
1583 szExecPath[cchAppPrivateArch] = '\0';
1584 if (RTPathCompare(szExecPath, szAppPrivateArch) != 0)
1585 return RTErrInfoSet(pErrInfo, VERR_SUPLIB_INVALID_INTERNAL_APP_DIR,
1586 "Internal executable does reside under RTPathAppPrivateArch");
1587 szExecPath[cchAppPrivateArch] = RTPATH_SLASH;
1588 }
1589
1590#ifdef VBOX_WITH_HARDENING
1591 /*
1592 * Verify that the image file and parent directories are sane.
1593 */
1594 rc = supR3HardenedVerifyFile(szExecPath, RTHCUINTPTR_MAX, false /*fMaybe3rdParty*/, pErrInfo);
1595 if (RT_FAILURE(rc))
1596 return rc;
1597#endif
1598
1599 return VINF_SUCCESS;
1600}
1601
1602
1603SUPR3DECL(int) SUPR3HardenedVerifyDir(const char *pszDirPath, bool fRecursive, bool fCheckFiles, PRTERRINFO pErrInfo)
1604{
1605 /*
1606 * Quick input validation
1607 */
1608 AssertPtr(pszDirPath);
1609 RTErrInfoClear(pErrInfo);
1610
1611 /*
1612 * Only do the actual check in hardened builds.
1613 */
1614#ifdef VBOX_WITH_HARDENING
1615 int rc = supR3HardenedVerifyDir(pszDirPath, fRecursive, fCheckFiles, pErrInfo);
1616 if (RT_FAILURE(rc) && !RTErrInfoIsSet(pErrInfo))
1617 LogRel(("supR3HardenedVerifyDir: Verification of \"%s\" failed, rc=%Rrc\n", pszDirPath, rc));
1618 return rc;
1619#else
1620 NOREF(pszDirPath); NOREF(fRecursive); NOREF(fCheckFiles);
1621 return VINF_SUCCESS;
1622#endif
1623}
1624
1625
1626SUPR3DECL(int) SUPR3HardenedVerifyPlugIn(const char *pszFilename, PRTERRINFO pErrInfo)
1627{
1628 /*
1629 * Quick input validation
1630 */
1631 AssertPtr(pszFilename);
1632 RTErrInfoClear(pErrInfo);
1633
1634 /*
1635 * Only do the actual check in hardened builds.
1636 */
1637#ifdef VBOX_WITH_HARDENING
1638 int rc = supR3HardenedVerifyFile(pszFilename, RTHCUINTPTR_MAX, true /*fMaybe3rdParty*/, pErrInfo);
1639 if (RT_FAILURE(rc) && !RTErrInfoIsSet(pErrInfo))
1640 LogRel(("supR3HardenedVerifyFile: Verification of \"%s\" failed, rc=%Rrc\n", pszFilename, rc));
1641 return rc;
1642#else
1643 RT_NOREF1(pszFilename);
1644 return VINF_SUCCESS;
1645#endif
1646}
1647
1648
1649SUPR3DECL(int) SUPR3GipGetPhys(PRTHCPHYS pHCPhys)
1650{
1651 if (g_pSUPGlobalInfoPage)
1652 {
1653 *pHCPhys = g_HCPhysSUPGlobalInfoPage;
1654 return VINF_SUCCESS;
1655 }
1656 *pHCPhys = NIL_RTHCPHYS;
1657 return VERR_WRONG_ORDER;
1658}
1659
1660
1661SUPR3DECL(int) SUPR3QueryVTxSupported(void)
1662{
1663#ifdef RT_OS_LINUX
1664 return suplibOsQueryVTxSupported();
1665#else
1666 return VINF_SUCCESS;
1667#endif
1668}
1669
1670
1671SUPR3DECL(int) SUPR3QueryVTCaps(uint32_t *pfCaps)
1672{
1673 AssertPtrReturn(pfCaps, VERR_INVALID_POINTER);
1674
1675 *pfCaps = 0;
1676
1677 /* fake */
1678 if (RT_UNLIKELY(g_uSupFakeMode))
1679 return VINF_SUCCESS;
1680
1681 /*
1682 * Issue IOCtl to the SUPDRV kernel module.
1683 */
1684 SUPVTCAPS Req;
1685 Req.Hdr.u32Cookie = g_u32Cookie;
1686 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1687 Req.Hdr.cbIn = SUP_IOCTL_VT_CAPS_SIZE_IN;
1688 Req.Hdr.cbOut = SUP_IOCTL_VT_CAPS_SIZE_OUT;
1689 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1690 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1691 Req.u.Out.Caps = 0;
1692 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_VT_CAPS, &Req, SUP_IOCTL_VT_CAPS_SIZE);
1693 if (RT_SUCCESS(rc))
1694 {
1695 rc = Req.Hdr.rc;
1696 if (RT_SUCCESS(rc))
1697 *pfCaps = Req.u.Out.Caps;
1698 }
1699 return rc;
1700}
1701
1702
1703SUPR3DECL(int) SUPR3QueryMicrocodeRev(uint32_t *uMicrocodeRev)
1704{
1705 AssertPtrReturn(uMicrocodeRev, VERR_INVALID_POINTER);
1706
1707 *uMicrocodeRev = 0;
1708
1709 /* fake */
1710 if (RT_UNLIKELY(g_uSupFakeMode))
1711 return VINF_SUCCESS;
1712
1713 /*
1714 * Issue IOCtl to the SUPDRV kernel module.
1715 */
1716 SUPUCODEREV Req;
1717 Req.Hdr.u32Cookie = g_u32Cookie;
1718 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
1719 Req.Hdr.cbIn = SUP_IOCTL_UCODE_REV_SIZE_IN;
1720 Req.Hdr.cbOut = SUP_IOCTL_UCODE_REV_SIZE_OUT;
1721 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1722 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1723 Req.u.Out.MicrocodeRev = 0;
1724 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_UCODE_REV, &Req, SUP_IOCTL_UCODE_REV_SIZE);
1725 if (RT_SUCCESS(rc))
1726 {
1727 rc = Req.Hdr.rc;
1728 if (RT_SUCCESS(rc))
1729 *uMicrocodeRev = Req.u.Out.MicrocodeRev;
1730 }
1731 return rc;
1732}
1733
1734
1735SUPR3DECL(int) SUPR3TracerOpen(uint32_t uCookie, uintptr_t uArg)
1736{
1737 /* fake */
1738 if (RT_UNLIKELY(g_uSupFakeMode))
1739 return VINF_SUCCESS;
1740
1741 /*
1742 * Issue IOCtl to the SUPDRV kernel module.
1743 */
1744 SUPTRACEROPEN Req;
1745 Req.Hdr.u32Cookie = g_u32Cookie;
1746 Req.Hdr.u32SessionCookie= g_u32SessionCookie;
1747 Req.Hdr.cbIn = SUP_IOCTL_TRACER_OPEN_SIZE_IN;
1748 Req.Hdr.cbOut = SUP_IOCTL_TRACER_OPEN_SIZE_OUT;
1749 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1750 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1751 Req.u.In.uCookie = uCookie;
1752 Req.u.In.uArg = uArg;
1753 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_TRACER_OPEN, &Req, SUP_IOCTL_TRACER_OPEN_SIZE);
1754 if (RT_SUCCESS(rc))
1755 rc = Req.Hdr.rc;
1756 return rc;
1757}
1758
1759
1760SUPR3DECL(int) SUPR3TracerClose(void)
1761{
1762 /* fake */
1763 if (RT_UNLIKELY(g_uSupFakeMode))
1764 return VINF_SUCCESS;
1765
1766 /*
1767 * Issue IOCtl to the SUPDRV kernel module.
1768 */
1769 SUPREQHDR Req;
1770 Req.u32Cookie = g_u32Cookie;
1771 Req.u32SessionCookie= g_u32SessionCookie;
1772 Req.cbIn = SUP_IOCTL_TRACER_OPEN_SIZE_IN;
1773 Req.cbOut = SUP_IOCTL_TRACER_OPEN_SIZE_OUT;
1774 Req.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1775 Req.rc = VERR_INTERNAL_ERROR;
1776 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_TRACER_CLOSE, &Req, SUP_IOCTL_TRACER_CLOSE_SIZE);
1777 if (RT_SUCCESS(rc))
1778 rc = Req.rc;
1779 return rc;
1780}
1781
1782
1783SUPR3DECL(int) SUPR3TracerIoCtl(uintptr_t uCmd, uintptr_t uArg, int32_t *piRetVal)
1784{
1785 /* fake */
1786 if (RT_UNLIKELY(g_uSupFakeMode))
1787 {
1788 *piRetVal = -1;
1789 return VERR_NOT_SUPPORTED;
1790 }
1791
1792 /*
1793 * Issue IOCtl to the SUPDRV kernel module.
1794 */
1795 SUPTRACERIOCTL Req;
1796 Req.Hdr.u32Cookie = g_u32Cookie;
1797 Req.Hdr.u32SessionCookie= g_u32SessionCookie;
1798 Req.Hdr.cbIn = SUP_IOCTL_TRACER_IOCTL_SIZE_IN;
1799 Req.Hdr.cbOut = SUP_IOCTL_TRACER_IOCTL_SIZE_OUT;
1800 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
1801 Req.Hdr.rc = VERR_INTERNAL_ERROR;
1802 Req.u.In.uCmd = uCmd;
1803 Req.u.In.uArg = uArg;
1804 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_TRACER_IOCTL, &Req, SUP_IOCTL_TRACER_IOCTL_SIZE);
1805 if (RT_SUCCESS(rc))
1806 {
1807 rc = Req.Hdr.rc;
1808 *piRetVal = Req.u.Out.iRetVal;
1809 }
1810 return rc;
1811}
1812
1813
1814
1815typedef struct SUPDRVTRACERSTRTAB
1816{
1817 /** Pointer to the string table. */
1818 char *pchStrTab;
1819 /** The actual string table size. */
1820 uint32_t cbStrTab;
1821 /** The original string pointers. */
1822 RTUINTPTR apszOrgFunctions[1];
1823} SUPDRVTRACERSTRTAB, *PSUPDRVTRACERSTRTAB;
1824
1825
1826/**
1827 * Destroys a string table, restoring the original pszFunction member valus.
1828 *
1829 * @param pThis The string table structure.
1830 * @param paProbeLocs32 The probe location array, 32-bit type variant.
1831 * @param paProbeLocs64 The probe location array, 64-bit type variant.
1832 * @param cProbeLocs The number of elements in the array.
1833 * @param f32Bit Set if @a paProbeLocs32 should be used, when
1834 * clear use @a paProbeLocs64.
1835 */
1836static void supr3TracerDestroyStrTab(PSUPDRVTRACERSTRTAB pThis, PVTGPROBELOC32 paProbeLocs32, PVTGPROBELOC64 paProbeLocs64,
1837 uint32_t cProbeLocs, bool f32Bit)
1838{
1839 /* Restore. */
1840 size_t i = cProbeLocs;
1841 if (f32Bit)
1842 while (i--)
1843 paProbeLocs32[i].pszFunction = (uint32_t)pThis->apszOrgFunctions[i];
1844 else
1845 while (i--)
1846 paProbeLocs64[i].pszFunction = pThis->apszOrgFunctions[i];
1847
1848 /* Free. */
1849 RTMemFree(pThis->pchStrTab);
1850 RTMemFree(pThis);
1851}
1852
1853
1854/**
1855 * Creates a string table for the pszFunction members in the probe location
1856 * array.
1857 *
1858 * This will save and replace the pszFunction members with offsets.
1859 *
1860 * @returns Pointer to a string table structure. NULL on failure.
1861 * @param paProbeLocs32 The probe location array, 32-bit type variant.
1862 * @param paProbeLocs64 The probe location array, 64-bit type variant.
1863 * @param cProbeLocs The number of elements in the array.
1864 * @param offDelta Relocation offset for the string pointers.
1865 * @param f32Bit Set if @a paProbeLocs32 should be used, when
1866 * clear use @a paProbeLocs64.
1867 */
1868static PSUPDRVTRACERSTRTAB supr3TracerCreateStrTab(PVTGPROBELOC32 paProbeLocs32,
1869 PVTGPROBELOC64 paProbeLocs64,
1870 uint32_t cProbeLocs,
1871 RTUINTPTR offDelta,
1872 bool f32Bit)
1873{
1874 if (cProbeLocs > _128K)
1875 return NULL;
1876
1877 /*
1878 * Allocate the string table structures.
1879 */
1880 size_t cbThis = RT_OFFSETOF(SUPDRVTRACERSTRTAB, apszOrgFunctions[cProbeLocs]);
1881 PSUPDRVTRACERSTRTAB pThis = (PSUPDRVTRACERSTRTAB)RTMemAlloc(cbThis);
1882 if (!pThis)
1883 return NULL;
1884
1885 uint32_t const cHashBits = cProbeLocs * 2 - 1;
1886 uint32_t *pbmHash = (uint32_t *)RTMemAllocZ(RT_ALIGN_32(cHashBits, 64) / 8 );
1887 if (!pbmHash)
1888 {
1889 RTMemFree(pThis);
1890 return NULL;
1891 }
1892
1893 /*
1894 * Calc the max string table size and save the orignal pointers so we can
1895 * replace them later.
1896 */
1897 size_t cbMax = 1;
1898 for (uint32_t i = 0; i < cProbeLocs; i++)
1899 {
1900 pThis->apszOrgFunctions[i] = f32Bit ? paProbeLocs32[i].pszFunction : paProbeLocs64[i].pszFunction;
1901 const char *pszFunction = (const char *)(uintptr_t)(pThis->apszOrgFunctions[i] + offDelta);
1902 size_t cch = strlen(pszFunction);
1903 if (cch > _1K)
1904 {
1905 cbMax = 0;
1906 break;
1907 }
1908 cbMax += cch + 1;
1909 }
1910
1911 /* Alloc space for it. */
1912 if (cbMax > 0)
1913 pThis->pchStrTab = (char *)RTMemAlloc(cbMax);
1914 else
1915 pThis->pchStrTab = NULL;
1916 if (!pThis->pchStrTab)
1917 {
1918 RTMemFree(pbmHash);
1919 RTMemFree(pThis);
1920 return NULL;
1921 }
1922
1923 /*
1924 * Create the string table.
1925 */
1926 uint32_t off = 0;
1927 uint32_t offPrev = 0;
1928
1929 for (uint32_t i = 0; i < cProbeLocs; i++)
1930 {
1931 const char * const psz = (const char *)(uintptr_t)(pThis->apszOrgFunctions[i] + offDelta);
1932 size_t const cch = strlen(psz);
1933 uint32_t const iHashBit = RTStrHash1(psz) % cHashBits;
1934 if (ASMBitTestAndSet(pbmHash, iHashBit))
1935 {
1936 /* Often it's the most recent string. */
1937 if ( off - offPrev < cch + 1
1938 || memcmp(&pThis->pchStrTab[offPrev], psz, cch + 1))
1939 {
1940 /* It wasn't, search the entire string table. (lazy bird) */
1941 offPrev = 0;
1942 while (offPrev < off)
1943 {
1944 size_t cchCur = strlen(&pThis->pchStrTab[offPrev]);
1945 if ( cchCur == cch
1946 && !memcmp(&pThis->pchStrTab[offPrev], psz, cch + 1))
1947 break;
1948 offPrev += (uint32_t)cchCur + 1;
1949 }
1950 }
1951 }
1952 else
1953 offPrev = off;
1954
1955 /* Add the string to the table. */
1956 if (offPrev >= off)
1957 {
1958 memcpy(&pThis->pchStrTab[off], psz, cch + 1);
1959 offPrev = off;
1960 off += (uint32_t)cch + 1;
1961 }
1962
1963 /* Update the entry */
1964 if (f32Bit)
1965 paProbeLocs32[i].pszFunction = offPrev;
1966 else
1967 paProbeLocs64[i].pszFunction = offPrev;
1968 }
1969
1970 pThis->cbStrTab = off;
1971 RTMemFree(pbmHash);
1972 return pThis;
1973}
1974
1975
1976
1977SUPR3DECL(int) SUPR3TracerRegisterModule(uintptr_t hModNative, const char *pszModule, struct VTGOBJHDR *pVtgHdr,
1978 RTUINTPTR uVtgHdrAddr, uint32_t fFlags)
1979{
1980 /* Validate input. */
1981 NOREF(hModNative);
1982 AssertPtrReturn(pVtgHdr, VERR_INVALID_POINTER);
1983 AssertReturn(!memcmp(pVtgHdr->szMagic, VTGOBJHDR_MAGIC, sizeof(pVtgHdr->szMagic)), VERR_SUPDRV_VTG_MAGIC);
1984 AssertPtrReturn(pszModule, VERR_INVALID_POINTER);
1985 size_t cchModule = strlen(pszModule);
1986 AssertReturn(cchModule < RT_SIZEOFMEMB(SUPTRACERUMODREG, u.In.szName), VERR_FILENAME_TOO_LONG);
1987 AssertReturn(!RTPathHavePath(pszModule), VERR_INVALID_PARAMETER);
1988 AssertReturn(fFlags == SUP_TRACER_UMOD_FLAGS_EXE || fFlags == SUP_TRACER_UMOD_FLAGS_SHARED, VERR_INVALID_PARAMETER);
1989
1990 /*
1991 * Set the probe location array offset and size members. If the size is
1992 * zero, don't bother ring-0 with it.
1993 */
1994 if (!pVtgHdr->offProbeLocs)
1995 {
1996 uint64_t u64Tmp = pVtgHdr->uProbeLocsEnd.u64 - pVtgHdr->uProbeLocs.u64;
1997 if (u64Tmp >= UINT32_MAX)
1998 return VERR_SUPDRV_VTG_BAD_HDR_TOO_MUCH;
1999 pVtgHdr->cbProbeLocs = (uint32_t)u64Tmp;
2000
2001 u64Tmp = pVtgHdr->uProbeLocs.u64 - uVtgHdrAddr;
2002 if ((int64_t)u64Tmp != (int32_t)u64Tmp)
2003 {
2004 LogRel(("SUPR3TracerRegisterModule: VERR_SUPDRV_VTG_BAD_HDR_PTR - u64Tmp=%#llx uProbeLocs=%#llx uVtgHdrAddr=%RTptr\n",
2005 u64Tmp, pVtgHdr->uProbeLocs.u64, uVtgHdrAddr));
2006 return VERR_SUPDRV_VTG_BAD_HDR_PTR;
2007 }
2008 pVtgHdr->offProbeLocs = (int32_t)u64Tmp;
2009 }
2010
2011 if ( !pVtgHdr->cbProbeLocs
2012 || !pVtgHdr->cbProbes)
2013 return VINF_SUCCESS;
2014
2015 /*
2016 * Fake out.
2017 */
2018 if (RT_UNLIKELY(g_uSupFakeMode))
2019 return VINF_SUCCESS;
2020
2021 /*
2022 * Create a string table for the function names in the location array.
2023 * It's somewhat easier to do that here than from ring-0.
2024 */
2025 uint32_t const cProbeLocs = pVtgHdr->cbProbeLocs
2026 / (pVtgHdr->cBits == 32 ? sizeof(VTGPROBELOC32) : sizeof(VTGPROBELOC64));
2027 PVTGPROBELOC paProbeLocs = (PVTGPROBELOC)((uintptr_t)pVtgHdr + pVtgHdr->offProbeLocs);
2028 PSUPDRVTRACERSTRTAB pStrTab = supr3TracerCreateStrTab((PVTGPROBELOC32)paProbeLocs,
2029 (PVTGPROBELOC64)paProbeLocs,
2030 cProbeLocs, (uintptr_t)pVtgHdr - uVtgHdrAddr,
2031 pVtgHdr->cBits == 32);
2032 if (!pStrTab)
2033 return VERR_NO_MEMORY;
2034
2035
2036 /*
2037 * Issue IOCtl to the SUPDRV kernel module.
2038 */
2039 SUPTRACERUMODREG Req;
2040 Req.Hdr.u32Cookie = g_u32Cookie;
2041 Req.Hdr.u32SessionCookie= g_u32SessionCookie;
2042 Req.Hdr.cbIn = SUP_IOCTL_TRACER_UMOD_REG_SIZE_IN;
2043 Req.Hdr.cbOut = SUP_IOCTL_TRACER_UMOD_REG_SIZE_OUT;
2044 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2045 Req.Hdr.rc = VERR_INTERNAL_ERROR;
2046 Req.u.In.uVtgHdrAddr = uVtgHdrAddr;
2047 Req.u.In.R3PtrVtgHdr = pVtgHdr;
2048 Req.u.In.R3PtrStrTab = pStrTab->pchStrTab;
2049 Req.u.In.cbStrTab = pStrTab->cbStrTab;
2050 Req.u.In.fFlags = fFlags;
2051
2052 memcpy(Req.u.In.szName, pszModule, cchModule + 1);
2053 if (!RTPathHasSuffix(Req.u.In.szName))
2054 {
2055 /* Add the default suffix if none is given. */
2056 switch (fFlags & SUP_TRACER_UMOD_FLAGS_TYPE_MASK)
2057 {
2058#if defined(RT_OS_WINDOWS) || defined(RT_OS_OS2)
2059 case SUP_TRACER_UMOD_FLAGS_EXE:
2060 if (cchModule + sizeof(".exe") <= sizeof(Req.u.In.szName))
2061 strcpy(&Req.u.In.szName[cchModule], ".exe");
2062 break;
2063#endif
2064
2065 case SUP_TRACER_UMOD_FLAGS_SHARED:
2066 {
2067 const char *pszSuff = RTLdrGetSuff();
2068 size_t cchSuff = strlen(pszSuff);
2069 if (cchModule + cchSuff < sizeof(Req.u.In.szName))
2070 memcpy(&Req.u.In.szName[cchModule], pszSuff, cchSuff + 1);
2071 break;
2072 }
2073 }
2074 }
2075
2076 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_TRACER_UMOD_REG, &Req, SUP_IOCTL_TRACER_UMOD_REG_SIZE);
2077 if (RT_SUCCESS(rc))
2078 rc = Req.Hdr.rc;
2079
2080 supr3TracerDestroyStrTab(pStrTab, (PVTGPROBELOC32)paProbeLocs, (PVTGPROBELOC64)paProbeLocs,
2081 cProbeLocs, pVtgHdr->cBits == 32);
2082 return rc;
2083}
2084
2085
2086SUPR3DECL(int) SUPR3TracerDeregisterModule(struct VTGOBJHDR *pVtgHdr)
2087{
2088 /* Validate input. */
2089 AssertPtrReturn(pVtgHdr, VERR_INVALID_POINTER);
2090 AssertReturn(!memcmp(pVtgHdr->szMagic, VTGOBJHDR_MAGIC, sizeof(pVtgHdr->szMagic)), VERR_SUPDRV_VTG_MAGIC);
2091
2092 /*
2093 * Don't bother if the object is empty.
2094 */
2095 if ( !pVtgHdr->cbProbeLocs
2096 || !pVtgHdr->cbProbes)
2097 return VINF_SUCCESS;
2098
2099 /*
2100 * Fake out.
2101 */
2102 if (RT_UNLIKELY(g_uSupFakeMode))
2103 return VINF_SUCCESS;
2104
2105 /*
2106 * Issue IOCtl to the SUPDRV kernel module.
2107 */
2108 SUPTRACERUMODDEREG Req;
2109 Req.Hdr.u32Cookie = g_u32Cookie;
2110 Req.Hdr.u32SessionCookie= g_u32SessionCookie;
2111 Req.Hdr.cbIn = SUP_IOCTL_TRACER_UMOD_REG_SIZE_IN;
2112 Req.Hdr.cbOut = SUP_IOCTL_TRACER_UMOD_REG_SIZE_OUT;
2113 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2114 Req.Hdr.rc = VERR_INTERNAL_ERROR;
2115 Req.u.In.pVtgHdr = pVtgHdr;
2116
2117 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_TRACER_UMOD_DEREG, &Req, SUP_IOCTL_TRACER_UMOD_DEREG_SIZE);
2118 if (RT_SUCCESS(rc))
2119 rc = Req.Hdr.rc;
2120 return rc;
2121}
2122
2123
2124DECLASM(void) suplibTracerFireProbe(PVTGPROBELOC pProbeLoc, PSUPTRACERUMODFIREPROBE pReq)
2125{
2126 RT_NOREF1(pProbeLoc);
2127
2128 pReq->Hdr.u32Cookie = g_u32Cookie;
2129 pReq->Hdr.u32SessionCookie = g_u32SessionCookie;
2130 Assert(pReq->Hdr.cbIn == SUP_IOCTL_TRACER_UMOD_FIRE_PROBE_SIZE_IN);
2131 Assert(pReq->Hdr.cbOut == SUP_IOCTL_TRACER_UMOD_FIRE_PROBE_SIZE_OUT);
2132 pReq->Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2133 pReq->Hdr.rc = VINF_SUCCESS;
2134
2135 suplibOsIOCtl(&g_supLibData, SUP_IOCTL_TRACER_UMOD_FIRE_PROBE, pReq, SUP_IOCTL_TRACER_UMOD_FIRE_PROBE_SIZE);
2136}
2137
2138
2139SUPR3DECL(int) SUPR3MsrProberRead(uint32_t uMsr, RTCPUID idCpu, uint64_t *puValue, bool *pfGp)
2140{
2141 SUPMSRPROBER Req;
2142 Req.Hdr.u32Cookie = g_u32Cookie;
2143 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
2144 Req.Hdr.cbIn = SUP_IOCTL_MSR_PROBER_SIZE_IN;
2145 Req.Hdr.cbOut = SUP_IOCTL_MSR_PROBER_SIZE_OUT;
2146 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2147 Req.Hdr.rc = VERR_INTERNAL_ERROR;
2148
2149 Req.u.In.enmOp = SUPMSRPROBEROP_READ;
2150 Req.u.In.uMsr = uMsr;
2151 Req.u.In.idCpu = idCpu == NIL_RTCPUID ? UINT32_MAX : idCpu;
2152
2153 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_MSR_PROBER, &Req, SUP_IOCTL_MSR_PROBER_SIZE);
2154 if (RT_SUCCESS(rc))
2155 rc = Req.Hdr.rc;
2156 if (RT_SUCCESS(rc))
2157 {
2158 if (puValue)
2159 *puValue = Req.u.Out.uResults.Read.uValue;
2160 if (pfGp)
2161 *pfGp = Req.u.Out.uResults.Read.fGp;
2162 }
2163
2164 return rc;
2165}
2166
2167
2168SUPR3DECL(int) SUPR3MsrProberWrite(uint32_t uMsr, RTCPUID idCpu, uint64_t uValue, bool *pfGp)
2169{
2170 SUPMSRPROBER Req;
2171 Req.Hdr.u32Cookie = g_u32Cookie;
2172 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
2173 Req.Hdr.cbIn = SUP_IOCTL_MSR_PROBER_SIZE_IN;
2174 Req.Hdr.cbOut = SUP_IOCTL_MSR_PROBER_SIZE_OUT;
2175 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2176 Req.Hdr.rc = VERR_INTERNAL_ERROR;
2177
2178 Req.u.In.enmOp = SUPMSRPROBEROP_WRITE;
2179 Req.u.In.uMsr = uMsr;
2180 Req.u.In.idCpu = idCpu == NIL_RTCPUID ? UINT32_MAX : idCpu;
2181 Req.u.In.uArgs.Write.uToWrite = uValue;
2182
2183 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_MSR_PROBER, &Req, SUP_IOCTL_MSR_PROBER_SIZE);
2184 if (RT_SUCCESS(rc))
2185 rc = Req.Hdr.rc;
2186 if (RT_SUCCESS(rc) && pfGp)
2187 *pfGp = Req.u.Out.uResults.Write.fGp;
2188
2189 return rc;
2190}
2191
2192
2193SUPR3DECL(int) SUPR3MsrProberModify(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask,
2194 PSUPMSRPROBERMODIFYRESULT pResult)
2195{
2196 return SUPR3MsrProberModifyEx(uMsr, idCpu, fAndMask, fOrMask, false /*fFaster*/, pResult);
2197}
2198
2199
2200SUPR3DECL(int) SUPR3MsrProberModifyEx(uint32_t uMsr, RTCPUID idCpu, uint64_t fAndMask, uint64_t fOrMask, bool fFaster,
2201 PSUPMSRPROBERMODIFYRESULT pResult)
2202{
2203 SUPMSRPROBER Req;
2204 Req.Hdr.u32Cookie = g_u32Cookie;
2205 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
2206 Req.Hdr.cbIn = SUP_IOCTL_MSR_PROBER_SIZE_IN;
2207 Req.Hdr.cbOut = SUP_IOCTL_MSR_PROBER_SIZE_OUT;
2208 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2209 Req.Hdr.rc = VERR_INTERNAL_ERROR;
2210
2211 Req.u.In.enmOp = fFaster ? SUPMSRPROBEROP_MODIFY_FASTER : SUPMSRPROBEROP_MODIFY;
2212 Req.u.In.uMsr = uMsr;
2213 Req.u.In.idCpu = idCpu == NIL_RTCPUID ? UINT32_MAX : idCpu;
2214 Req.u.In.uArgs.Modify.fAndMask = fAndMask;
2215 Req.u.In.uArgs.Modify.fOrMask = fOrMask;
2216
2217 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_MSR_PROBER, &Req, SUP_IOCTL_MSR_PROBER_SIZE);
2218 if (RT_SUCCESS(rc))
2219 rc = Req.Hdr.rc;
2220 if (RT_SUCCESS(rc))
2221 *pResult = Req.u.Out.uResults.Modify;
2222
2223 return rc;
2224}
2225
2226
2227SUPR3DECL(int) SUPR3ResumeSuspendedKeyboards(void)
2228{
2229#ifdef RT_OS_DARWIN
2230 /*
2231 * Issue IOCtl to the SUPDRV kernel module.
2232 */
2233 SUPREQHDR Req;
2234 Req.u32Cookie = g_u32Cookie;
2235 Req.u32SessionCookie= g_u32SessionCookie;
2236 Req.cbIn = SUP_IOCTL_RESUME_SUSPENDED_KBDS_SIZE_IN;
2237 Req.cbOut = SUP_IOCTL_RESUME_SUSPENDED_KBDS_SIZE_OUT;
2238 Req.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2239 Req.rc = VERR_INTERNAL_ERROR;
2240 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_RESUME_SUSPENDED_KBDS, &Req, SUP_IOCTL_RESUME_SUSPENDED_KBDS_SIZE);
2241 if (RT_SUCCESS(rc))
2242 rc = Req.rc;
2243 return rc;
2244#else /* !RT_OS_DARWIN */
2245 return VERR_NOT_SUPPORTED;
2246#endif
2247}
2248
2249
2250SUPR3DECL(int) SUPR3TscDeltaMeasure(RTCPUID idCpu, bool fAsync, bool fForce, uint8_t cRetries, uint8_t cMsWaitRetry)
2251{
2252 SUPTSCDELTAMEASURE Req;
2253 Req.Hdr.u32Cookie = g_u32Cookie;
2254 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
2255 Req.Hdr.cbIn = SUP_IOCTL_TSC_DELTA_MEASURE_SIZE_IN;
2256 Req.Hdr.cbOut = SUP_IOCTL_TSC_DELTA_MEASURE_SIZE_OUT;
2257 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2258 Req.Hdr.rc = VERR_INTERNAL_ERROR;
2259
2260 Req.u.In.cRetries = cRetries;
2261 Req.u.In.fAsync = fAsync;
2262 Req.u.In.fForce = fForce;
2263 Req.u.In.idCpu = idCpu;
2264 Req.u.In.cMsWaitRetry = cMsWaitRetry;
2265
2266 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_TSC_DELTA_MEASURE, &Req, SUP_IOCTL_TSC_DELTA_MEASURE_SIZE);
2267 if (RT_SUCCESS(rc))
2268 rc = Req.Hdr.rc;
2269 return rc;
2270}
2271
2272
2273SUPR3DECL(int) SUPR3ReadTsc(uint64_t *puTsc, uint16_t *pidApic)
2274{
2275 AssertReturn(puTsc, VERR_INVALID_PARAMETER);
2276
2277 SUPTSCREAD Req;
2278 Req.Hdr.u32Cookie = g_u32Cookie;
2279 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
2280 Req.Hdr.cbIn = SUP_IOCTL_TSC_READ_SIZE_IN;
2281 Req.Hdr.cbOut = SUP_IOCTL_TSC_READ_SIZE_OUT;
2282 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2283 Req.Hdr.rc = VERR_INTERNAL_ERROR;
2284
2285 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_TSC_READ, &Req, SUP_IOCTL_TSC_READ_SIZE);
2286 if (RT_SUCCESS(rc))
2287 {
2288 rc = Req.Hdr.rc;
2289 *puTsc = Req.u.Out.u64AdjustedTsc;
2290 if (pidApic)
2291 *pidApic = Req.u.Out.idApic;
2292 }
2293 return rc;
2294}
2295
2296
2297SUPR3DECL(int) SUPR3GipSetFlags(uint32_t fOrMask, uint32_t fAndMask)
2298{
2299 AssertMsgReturn(!(fOrMask & ~SUPGIP_FLAGS_VALID_MASK),
2300 ("fOrMask=%#x ValidMask=%#x\n", fOrMask, SUPGIP_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
2301 AssertMsgReturn((fAndMask & ~SUPGIP_FLAGS_VALID_MASK) == ~SUPGIP_FLAGS_VALID_MASK,
2302 ("fAndMask=%#x ValidMask=%#x\n", fAndMask, SUPGIP_FLAGS_VALID_MASK), VERR_INVALID_PARAMETER);
2303
2304 SUPGIPSETFLAGS Req;
2305 Req.Hdr.u32Cookie = g_u32Cookie;
2306 Req.Hdr.u32SessionCookie = g_u32SessionCookie;
2307 Req.Hdr.cbIn = SUP_IOCTL_GIP_SET_FLAGS_SIZE_IN;
2308 Req.Hdr.cbOut = SUP_IOCTL_GIP_SET_FLAGS_SIZE_OUT;
2309 Req.Hdr.fFlags = SUPREQHDR_FLAGS_DEFAULT;
2310 Req.Hdr.rc = VERR_INTERNAL_ERROR;
2311
2312 Req.u.In.fAndMask = fAndMask;
2313 Req.u.In.fOrMask = fOrMask;
2314
2315 int rc = suplibOsIOCtl(&g_supLibData, SUP_IOCTL_GIP_SET_FLAGS, &Req, SUP_IOCTL_GIP_SET_FLAGS_SIZE);
2316 if (RT_SUCCESS(rc))
2317 rc = Req.Hdr.rc;
2318 return rc;
2319}
2320
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