VirtualBox

source: vbox/trunk/src/VBox/Main/VMMDevInterface.cpp@ 317

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1/** @file
2 *
3 * VirtualBox Driver Interface to VMM device
4 */
5
6/*
7 * Copyright (C) 2006 InnoTek Systemberatung GmbH
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 as published by the Free Software Foundation,
13 * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
14 * distribution. VirtualBox OSE is distributed in the hope that it will
15 * be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * If you received this file as part of a commercial VirtualBox
18 * distribution, then only the terms of your commercial VirtualBox
19 * license agreement apply instead of the previous paragraph.
20 */
21
22#include "VMMDev.h"
23#include "ConsoleImpl.h"
24#include "DisplayImpl.h"
25#include "GuestImpl.h"
26
27#include "Logging.h"
28
29#include <VBox/pdm.h>
30#include <VBox/VBoxDev.h>
31#include <VBox/VBoxGuest.h>
32#include <VBox/cfgm.h>
33#include <VBox/err.h>
34#include <iprt/asm.h>
35
36#ifdef VBOX_HGCM
37#include "hgcm/HGCM.h"
38#endif
39
40//
41// defines
42//
43
44
45//
46// globals
47//
48
49
50/**
51 * VMMDev driver instance data.
52 */
53typedef struct DRVMAINVMMDEV
54{
55 /** Pointer to the VMMDev object. */
56 VMMDev *pVMMDev;
57 /** Pointer to the driver instance structure. */
58 PPDMDRVINS pDrvIns;
59 /** Pointer to the VMMDev port interface of the driver/device above us. */
60 PPDMIVMMDEVPORT pUpPort;
61 /** Our VMM device connector interface. */
62 PDMIVMMDEVCONNECTOR Connector;
63#ifdef VBOX_HGCM
64 /** Pointer to the HGCM port interface of the driver/device above us. */
65 PPDMIHGCMPORT pHGCMPort;
66 /** Our HGCM connector interface. */
67 PDMIHGCMCONNECTOR HGCMConnector;
68#endif
69} DRVMAINVMMDEV, *PDRVMAINVMMDEV;
70
71/** Converts PDMIVMMDEVCONNECTOR pointer to a DRVMAINVMMDEV pointer. */
72#define PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface) ( (PDRVMAINVMMDEV) ((uintptr_t)pInterface - RT_OFFSETOF(DRVMAINVMMDEV, Connector)) )
73
74#ifdef VBOX_HGCM
75/** Converts PDMIHGCMCONNECTOR pointer to a DRVMAINVMMDEV pointer. */
76#define PDMIHGCMCONNECTOR_2_MAINVMMDEV(pInterface) ( (PDRVMAINVMMDEV) ((uintptr_t)pInterface - RT_OFFSETOF(DRVMAINVMMDEV, HGCMConnector)) )
77#endif
78
79//
80// constructor / destructor
81//
82VMMDev::VMMDev(Console *console) : mpDrv(NULL)
83{
84 mParent = console;
85 int rc = RTSemEventCreate(&mCredentialsEvent);
86 AssertRC(rc);
87#ifdef VBOX_HGCM
88 rc = hgcmInit ();
89 AssertRC(rc);
90#endif /* VBOX_HGCM */
91 mu32CredentialsFlags = 0;
92}
93
94VMMDev::~VMMDev()
95{
96 RTSemEventDestroy (mCredentialsEvent);
97 if (mpDrv)
98 mpDrv->pVMMDev = NULL;
99 mpDrv = NULL;
100}
101
102PPDMIVMMDEVPORT VMMDev::getVMMDevPort()
103{
104 Assert(mpDrv);
105 return mpDrv->pUpPort;
106}
107
108
109
110//
111// public methods
112//
113
114/**
115 * Wait on event semaphore for guest credential judgement result.
116 */
117int VMMDev::WaitCredentialsJudgement (uint32_t u32Timeout, uint32_t *pu32CredentialsFlags)
118{
119 if (u32Timeout == 0)
120 {
121 u32Timeout = 5000;
122 }
123
124 int rc = RTSemEventWait (mCredentialsEvent, u32Timeout);
125
126 if (VBOX_SUCCESS (rc))
127 {
128 *pu32CredentialsFlags = mu32CredentialsFlags;
129 }
130
131 return rc;
132}
133
134int VMMDev::SetCredentialsJudgementResult (uint32_t u32Flags)
135{
136 mu32CredentialsFlags = u32Flags;
137
138 int rc = RTSemEventSignal (mCredentialsEvent);
139 AssertRC(rc);
140
141 return rc;
142}
143
144
145/**
146 * Report guest OS version.
147 * Called whenever the Additions issue a guest version report request.
148 *
149 * @param pInterface Pointer to this interface.
150 * @param guestInfo Pointer to guest information structure
151 * @thread The emulation thread.
152 */
153DECLCALLBACK(void) vmmdevUpdateGuestVersion(PPDMIVMMDEVCONNECTOR pInterface, VBoxGuestInfo *guestInfo)
154{
155 PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
156
157 Assert(guestInfo);
158 if (!guestInfo)
159 return;
160
161 /* store that information in IGuest */
162 Guest* guest = pDrv->pVMMDev->getParent()->getGuest();
163 Assert(guest);
164 if (!guest)
165 return;
166
167 char version[20];
168 sprintf(version, "%d", guestInfo->additionsVersion);
169 guest->setAdditionsVersion(Bstr(version));
170
171 /*
172 * Tell the console interface about the event
173 * so that it can notify its consumers.
174 */
175 pDrv->pVMMDev->getParent()->onAdditionsStateChange();
176
177 if (guestInfo->additionsVersion < VMMDEV_VERSION)
178 {
179 pDrv->pVMMDev->getParent()->onAdditionsOutdated();
180 }
181}
182
183/**
184 * Update the mouse capabilities.
185 * This is called when the mouse capabilities change. The new capabilities
186 * are given and the connector should update its internal state.
187 *
188 * @param pInterface Pointer to this interface.
189 * @param newCapabilities New capabilities.
190 * @thread The emulation thread.
191 */
192DECLCALLBACK(void) vmmdevUpdateMouseCapabilities(PPDMIVMMDEVCONNECTOR pInterface, uint32_t newCapabilities)
193{
194 PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
195 /*
196 * Tell the console interface about the event
197 * so that it can notify its consumers.
198 */
199 pDrv->pVMMDev->getParent()->onMouseCapabilityChange(BOOL (newCapabilities & VMMDEV_MOUSEGUESTWANTSABS),
200 BOOL (newCapabilities & VMMDEV_MOUSEGUESTNEEDSHOSTCUR));
201}
202
203
204/**
205 * Update the pointer shape or visibility.
206 *
207 * This is called when the mouse pointer shape changes or pointer is hidden/displaying.
208 * The new shape is passed as a caller allocated buffer that will be freed after returning.
209 *
210 * @param pInterface Pointer to this interface.
211 * @param fVisible Whether the pointer is visible or not.
212 * @param fAlpha Alpha channel information is present.
213 * @param xHot Horizontal coordinate of the pointer hot spot.
214 * @param yHot Vertical coordinate of the pointer hot spot.
215 * @param width Pointer width in pixels.
216 * @param height Pointer height in pixels.
217 * @param pShape The shape buffer. If NULL, then only pointer visibility is being changed.
218 * @thread The emulation thread.
219 */
220DECLCALLBACK(void) vmmdevUpdatePointerShape(PPDMIVMMDEVCONNECTOR pInterface, bool fVisible, bool fAlpha,
221 uint32_t xHot, uint32_t yHot,
222 uint32_t width, uint32_t height,
223 void *pShape)
224{
225 PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
226
227 /* tell the console about it */
228 pDrv->pVMMDev->getParent()->onMousePointerShapeChange(fVisible, fAlpha,
229 xHot, yHot, width, height, pShape);
230}
231
232DECLCALLBACK(int) iface_VideoAccelEnable(PPDMIVMMDEVCONNECTOR pInterface, bool fEnable, VBVAMEMORY *pVbvaMemory)
233{
234 PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
235
236 Display *display = pDrv->pVMMDev->getParent()->getDisplay();
237
238 if (display)
239 {
240 LogFlow(("MAIN::VMMDevInterface::iface_VideoAccelEnable: %d, %p\n", fEnable, pVbvaMemory));
241 return display->VideoAccelEnable (fEnable, pVbvaMemory);
242 }
243
244 return VERR_NOT_SUPPORTED;
245}
246DECLCALLBACK(void) iface_VideoAccelFlush(PPDMIVMMDEVCONNECTOR pInterface)
247{
248 PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
249
250 Display *display = pDrv->pVMMDev->getParent()->getDisplay();
251
252 if (display)
253 {
254 LogFlow(("MAIN::VMMDevInterface::iface_VideoAccelFlush\n"));
255 display->VideoAccelFlush ();
256 }
257}
258
259DECLCALLBACK(int) vmmdevVideoModeSupported(PPDMIVMMDEVCONNECTOR pInterface, uint32_t width, uint32_t height,
260 uint32_t bpp, bool *fSupported)
261{
262 PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
263
264 if (!fSupported)
265 return VERR_INVALID_PARAMETER;
266 IFramebuffer *framebuffer = pDrv->pVMMDev->getParent()->getDisplay()->getFramebuffer();
267 Assert(framebuffer);
268 framebuffer->VideoModeSupported(width, height, bpp, (BOOL*)fSupported);
269 return VINF_SUCCESS;
270}
271
272DECLCALLBACK(int) vmmdevGetHeightReduction(PPDMIVMMDEVCONNECTOR pInterface, uint32_t *heightReduction)
273{
274 PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
275
276 if (!heightReduction)
277 return VERR_INVALID_PARAMETER;
278 IFramebuffer *framebuffer = pDrv->pVMMDev->getParent()->getDisplay()->getFramebuffer();
279 Assert(framebuffer);
280 framebuffer->COMGETTER(HeightReduction)((ULONG*)heightReduction);
281 return VINF_SUCCESS;
282}
283
284DECLCALLBACK(int) vmmdevSetCredentialsJudgementResult(PPDMIVMMDEVCONNECTOR pInterface, uint32_t u32Flags)
285{
286 PDRVMAINVMMDEV pDrv = PDMIVMMDEVCONNECTOR_2_MAINVMMDEV(pInterface);
287
288 int rc = pDrv->pVMMDev->SetCredentialsJudgementResult (u32Flags);
289
290 return rc;
291}
292
293#ifdef VBOX_HGCM
294
295/* HGCM connector interface */
296
297static DECLCALLBACK(int) iface_hgcmConnect (PPDMIHGCMCONNECTOR pInterface, PVBOXHGCMCMD pCmd, PHGCMSERVICELOCATION pServiceLocation, uint32_t *pu32ClientID)
298{
299 PDRVMAINVMMDEV pDrv = PDMIHGCMCONNECTOR_2_MAINVMMDEV(pInterface);
300
301 return hgcmConnectInternal (pDrv->pHGCMPort, pCmd, pServiceLocation, pu32ClientID, false);
302}
303
304static DECLCALLBACK(int) iface_hgcmDisconnect (PPDMIHGCMCONNECTOR pInterface, PVBOXHGCMCMD pCmd, uint32_t u32ClientID)
305{
306 PDRVMAINVMMDEV pDrv = PDMIHGCMCONNECTOR_2_MAINVMMDEV(pInterface);
307
308 return hgcmDisconnectInternal (pDrv->pHGCMPort, pCmd, u32ClientID, false);
309}
310
311static DECLCALLBACK(int) iface_hgcmCall (PPDMIHGCMCONNECTOR pInterface, PVBOXHGCMCMD pCmd, uint32_t u32ClientID, uint32_t u32Function,
312 uint32_t cParms, PVBOXHGCMSVCPARM paParms)
313{
314 PDRVMAINVMMDEV pDrv = PDMIHGCMCONNECTOR_2_MAINVMMDEV(pInterface);
315
316 return hgcmGuestCallInternal (pDrv->pHGCMPort, pCmd, u32ClientID, u32Function, cParms, paParms, false);
317}
318
319int VMMDev::hgcmLoadService (const char *pszServiceName, const char *pszServiceLibrary)
320{
321 return hgcmLoadInternal (pszServiceName, pszServiceLibrary);
322}
323
324int VMMDev::hgcmConnect (PVBOXHGCMCMD pCmd, PHGCMSERVICELOCATION pServiceLocation, uint32_t *pu32ClientID)
325{
326 return hgcmConnectInternal (mpDrv->pHGCMPort, pCmd, pServiceLocation, pu32ClientID, true);
327}
328
329int VMMDev::hgcmDisconnect (PVBOXHGCMCMD pCmd, uint32_t u32ClientID)
330{
331 return hgcmDisconnectInternal (mpDrv->pHGCMPort, pCmd, u32ClientID, true);
332}
333
334int VMMDev::hgcmHostCall (const char *pszServiceName, uint32_t u32Function,
335 uint32_t cParms, PVBOXHGCMSVCPARM paParms)
336{
337 return hgcmHostCallInternal (pszServiceName, u32Function, cParms, paParms);
338}
339
340#endif
341
342
343/**
344 * Queries an interface to the driver.
345 *
346 * @returns Pointer to interface.
347 * @returns NULL if the interface was not supported by the driver.
348 * @param pInterface Pointer to this interface structure.
349 * @param enmInterface The requested interface identification.
350 */
351DECLCALLBACK(void *) VMMDev::drvQueryInterface(PPDMIBASE pInterface, PDMINTERFACE enmInterface)
352{
353 PPDMDRVINS pDrvIns = PDMIBASE_2_PDMDRV(pInterface);
354 PDRVMAINVMMDEV pDrv = PDMINS2DATA(pDrvIns, PDRVMAINVMMDEV);
355 switch (enmInterface)
356 {
357 case PDMINTERFACE_BASE:
358 return &pDrvIns->IBase;
359 case PDMINTERFACE_VMMDEV_CONNECTOR:
360 return &pDrv->Connector;
361#ifdef VBOX_HGCM
362 case PDMINTERFACE_HGCM_CONNECTOR:
363 return &pDrv->HGCMConnector;
364#endif
365 default:
366 return NULL;
367 }
368}
369
370
371/**
372 * Destruct a VMMDev driver instance.
373 *
374 * @returns VBox status.
375 * @param pDrvIns The driver instance data.
376 */
377DECLCALLBACK(void) VMMDev::drvDestruct(PPDMDRVINS pDrvIns)
378{
379 PDRVMAINVMMDEV pData = PDMINS2DATA(pDrvIns, PDRVMAINVMMDEV);
380 LogFlow(("VMMDev::drvDestruct: iInstance=%d\n", pDrvIns->iInstance));
381#ifdef VBOX_HGCM
382 /* Unload Shared Folder HGCM service */
383 if (pData->pVMMDev->mSharedFolderClientId)
384 {
385 uint64_t dummy = 0;
386 PVBOXHGCMCMD cmd = (PVBOXHGCMCMD)&dummy;
387
388 pData->pVMMDev->hgcmDisconnect(cmd, pData->pVMMDev->getShFlClientId());
389 }
390
391 /// @todo hgcmShutdown
392#endif
393 if (pData->pVMMDev)
394 {
395 pData->pVMMDev->mpDrv = NULL;
396 }
397}
398
399/**
400 * Reset notification.
401 *
402 * @returns VBox status.
403 * @param pDrvIns The driver instance data.
404 */
405DECLCALLBACK(void) VMMDev::drvReset(PPDMDRVINS pDrvIns)
406{
407 PDRVMAINVMMDEV pData = PDMINS2DATA(pDrvIns, PDRVMAINVMMDEV);
408 LogFlow(("VMMDev::drvReset: iInstance=%d\n", pDrvIns->iInstance));
409#ifdef VBOX_HGCM
410 /* Unload Shared Folder HGCM service */
411 if (pData->pVMMDev->mSharedFolderClientId)
412 {
413 uint64_t dummy = 0;
414 PVBOXHGCMCMD cmd = (PVBOXHGCMCMD)&dummy;
415
416 pData->pVMMDev->hgcmDisconnect(cmd, pData->pVMMDev->getShFlClientId());
417
418 /* Reload Shared Folder HGCM service */
419 HGCMSERVICELOCATION loc;
420
421 cmd = (PVBOXHGCMCMD)&dummy;
422
423 Log(("Connect to Shared Folders service\n"));
424 pData->pVMMDev->mSharedFolderClientId = 0;
425 loc.type = VMMDevHGCMLoc_LocalHost;
426 strcpy(loc.u.host.achName, "VBoxSharedFolders");
427 int rc = pData->pVMMDev->hgcmConnect(cmd, &loc, &pData->pVMMDev->mSharedFolderClientId);
428 if (rc != VINF_SUCCESS)
429 {
430 AssertMsgFailed(("hgcmConnect returned %Vrc\n", rc));
431 }
432 }
433#endif
434}
435
436/**
437 * Construct a VMMDev driver instance.
438 *
439 * @returns VBox status.
440 * @param pDrvIns The driver instance data.
441 * If the registration structure is needed, pDrvIns->pDrvReg points to it.
442 * @param pCfgHandle Configuration node handle for the driver. Use this to obtain the configuration
443 * of the driver instance. It's also found in pDrvIns->pCfgHandle, but like
444 * iInstance it's expected to be used a bit in this function.
445 */
446DECLCALLBACK(int) VMMDev::drvConstruct(PPDMDRVINS pDrvIns, PCFGMNODE pCfgHandle)
447{
448 PDRVMAINVMMDEV pData = PDMINS2DATA(pDrvIns, PDRVMAINVMMDEV);
449 LogFlow(("Keyboard::drvConstruct: iInstance=%d\n", pDrvIns->iInstance));
450
451 /*
452 * Validate configuration.
453 */
454 if (!CFGMR3AreValuesValid(pCfgHandle, "Object\0"))
455 return VERR_PDM_DRVINS_UNKNOWN_CFG_VALUES;
456 PPDMIBASE pBaseIgnore;
457 int rc = pDrvIns->pDrvHlp->pfnAttach(pDrvIns, &pBaseIgnore);
458 if (rc != VERR_PDM_NO_ATTACHED_DRIVER)
459 {
460 AssertMsgFailed(("Configuration error: Not possible to attach anything to this driver!\n"));
461 return VERR_PDM_DRVINS_NO_ATTACH;
462 }
463
464 /*
465 * IBase.
466 */
467 pDrvIns->IBase.pfnQueryInterface = VMMDev::drvQueryInterface;
468
469 pData->Connector.pfnUpdateGuestVersion = vmmdevUpdateGuestVersion;
470 pData->Connector.pfnUpdateMouseCapabilities = vmmdevUpdateMouseCapabilities;
471 pData->Connector.pfnUpdatePointerShape = vmmdevUpdatePointerShape;
472 pData->Connector.pfnVideoAccelEnable = iface_VideoAccelEnable;
473 pData->Connector.pfnVideoAccelFlush = iface_VideoAccelFlush;
474 pData->Connector.pfnVideoModeSupported = vmmdevVideoModeSupported;
475 pData->Connector.pfnGetHeightReduction = vmmdevGetHeightReduction;
476 pData->Connector.pfnSetCredentialsJudgementResult = vmmdevSetCredentialsJudgementResult;
477
478#ifdef VBOX_HGCM
479 pData->HGCMConnector.pfnConnect = iface_hgcmConnect;
480 pData->HGCMConnector.pfnDisconnect = iface_hgcmDisconnect;
481 pData->HGCMConnector.pfnCall = iface_hgcmCall;
482#endif
483
484 /*
485 * Get the IVMMDevPort interface of the above driver/device.
486 */
487 pData->pUpPort = (PPDMIVMMDEVPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_VMMDEV_PORT);
488 if (!pData->pUpPort)
489 {
490 AssertMsgFailed(("Configuration error: No VMMDev port interface above!\n"));
491 return VERR_PDM_MISSING_INTERFACE_ABOVE;
492 }
493
494#ifdef VBOX_HGCM
495 pData->pHGCMPort = (PPDMIHGCMPORT)pDrvIns->pUpBase->pfnQueryInterface(pDrvIns->pUpBase, PDMINTERFACE_HGCM_PORT);
496 if (!pData->pHGCMPort)
497 {
498 AssertMsgFailed(("Configuration error: No HGCM port interface above!\n"));
499 return VERR_PDM_MISSING_INTERFACE_ABOVE;
500 }
501#endif
502
503 /*
504 * Get the Console object pointer and update the mpDrv member.
505 */
506 void *pv;
507 rc = CFGMR3QueryPtr(pCfgHandle, "Object", &pv);
508 if (VBOX_FAILURE(rc))
509 {
510 AssertMsgFailed(("Configuration error: No/bad \"Object\" value! rc=%Vrc\n", rc));
511 return rc;
512 }
513
514 pData->pVMMDev = (VMMDev*)pv; /** @todo Check this cast! */
515 pData->pVMMDev->mpDrv = pData;
516
517#ifdef VBOX_HGCM
518
519 /* Load Shared Folder HGCM service */
520 HGCMSERVICELOCATION loc;
521 uint64_t dummy = 0;
522 PVBOXHGCMCMD pCmd = (PVBOXHGCMCMD)&dummy;
523
524 Log(("Connect to Shared Folders service\n"));
525 pData->pVMMDev->mSharedFolderClientId = 0;
526
527 rc = pData->pVMMDev->hgcmLoadService ("VBoxSharedFolders", "VBoxSharedFolders");
528
529 if (rc == VINF_SUCCESS)
530 {
531 loc.type = VMMDevHGCMLoc_LocalHost;
532 strcpy(loc.u.host.achName, "VBoxSharedFolders");
533 rc = pData->pVMMDev->hgcmConnect(pCmd, &loc, &pData->pVMMDev->mSharedFolderClientId);
534 }
535
536 if (rc != VINF_SUCCESS)
537 {
538 Log(("hgcmConnect returned %Vrc, shared folders are unavailable!!!\n", rc));
539
540 /* This is not a fatal error; the shared folder dll can e.g. be missing */
541 rc = VINF_SUCCESS;
542 pData->pVMMDev->mSharedFolderClientId = 0;
543 }
544#endif
545
546 return VINF_SUCCESS;
547}
548
549
550/**
551 * VMMDevice driver registration record.
552 */
553const PDMDRVREG VMMDev::DrvReg =
554{
555 /* u32Version */
556 PDM_DRVREG_VERSION,
557 /* szDriverName */
558 "MainVMMDev",
559 /* pszDescription */
560 "Main VMMDev driver (Main as in the API).",
561 /* fFlags */
562 PDM_DRVREG_FLAGS_HOST_BITS_DEFAULT,
563 /* fClass. */
564 PDM_DRVREG_CLASS_VMMDEV,
565 /* cMaxInstances */
566 ~0,
567 /* cbInstance */
568 sizeof(DRVMAINVMMDEV),
569 /* pfnConstruct */
570 VMMDev::drvConstruct,
571 /* pfnDestruct */
572 VMMDev::drvDestruct,
573 /* pfnIOCtl */
574 NULL,
575 /* pfnPowerOn */
576 NULL,
577 /* pfnReset */
578 VMMDev::drvReset,
579 /* pfnSuspend */
580 NULL,
581 /* pfnResume */
582 NULL,
583 /* pfnDetach */
584 NULL
585};
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