VBoxGuest-solaris.c@ 29246

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1	/* $Id: VBoxGuest-solaris.c 28800 2010-04-27 08:22:32Z vboxsync $ */
2	/** @file
3	* VirtualBox Guest Additions Driver for Solaris.
4	*/
5
6	/*
7	* Copyright (C) 2007 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
18
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#include <sys/conf.h>
23	#include <sys/modctl.h>
24	#include <sys/mutex.h>
25	#include <sys/pci.h>
26	#include <sys/stat.h>
27	#include <sys/ddi.h>
28	#include <sys/ddi_intr.h>
29	#include <sys/sunddi.h>
30	#include <sys/open.h>
31	#undef u /* /usr/include/sys/user.h:249:1 is where this is defined to (curproc->p_user). very cool. */
32
33	#include "VBoxGuestInternal.h"
34	#include <VBox/log.h>
35	#include <VBox/version.h>
36	#include <iprt/assert.h>
37	#include <iprt/initterm.h>
38	#include <iprt/process.h>
39	#include <iprt/mem.h>
40	#include <iprt/cdefs.h>
41	#include <iprt/asm.h>
42
43
44	/*******************************************************************************
45	* Defined Constants And Macros *
46	*******************************************************************************/
47	/** The module name. */
48	#define DEVICE_NAME "vboxguest"
49	/** The module description as seen in 'modinfo'. */
50	#define DEVICE_DESC "VirtualBox GstDrv"
51
52
53	/*******************************************************************************
54	* Internal Functions *
55	*******************************************************************************/
56	static int VBoxGuestSolarisOpen(dev_t pDev, int fFlag, int fType, cred_t pCred);
57	static int VBoxGuestSolarisClose(dev_t Dev, int fFlag, int fType, cred_t *pCred);
58	static int VBoxGuestSolarisRead(dev_t Dev, struct uio pUio, cred_t pCred);
59	static int VBoxGuestSolarisWrite(dev_t Dev, struct uio pUio, cred_t pCred);
60	static int VBoxGuestSolarisIOCtl(dev_t Dev, int Cmd, intptr_t pArg, int Mode, cred_t pCred, int pVal);
61	static int VBoxGuestSolarisPoll(dev_t Dev, short fEvents, int fAnyYet, short pReqEvents, struct pollhead *ppPollHead);
62
63	static int VBoxGuestSolarisGetInfo(dev_info_t pDip, ddi_info_cmd_t enmCmd, void pArg, void **ppResult);
64	static int VBoxGuestSolarisAttach(dev_info_t *pDip, ddi_attach_cmd_t enmCmd);
65	static int VBoxGuestSolarisDetach(dev_info_t *pDip, ddi_detach_cmd_t enmCmd);
66
67	static int VBoxGuestSolarisAddIRQ(dev_info_t *pDip);
68	static void VBoxGuestSolarisRemoveIRQ(dev_info_t *pDip);
69	static uint_t VBoxGuestSolarisISR(caddr_t Arg);
70
71
72	/*******************************************************************************
73	* Structures and Typedefs *
74	*******************************************************************************/
75	/**
76	* cb_ops: for drivers that support char/block entry points
77	*/
78	static struct cb_ops g_VBoxGuestSolarisCbOps =
79	{
80	VBoxGuestSolarisOpen,
81	VBoxGuestSolarisClose,
82	nodev, /* b strategy */
83	nodev, /* b dump */
84	nodev, /* b print */
85	VBoxGuestSolarisRead,
86	VBoxGuestSolarisWrite,
87	VBoxGuestSolarisIOCtl,
88	nodev, /* c devmap */
89	nodev, /* c mmap */
90	nodev, /* c segmap */
91	VBoxGuestSolarisPoll,
92	ddi_prop_op, /* property ops */
93	NULL, /* streamtab */
94	D_NEW \| D_MP, /* compat. flag */
95	CB_REV /* revision */
96	};
97
98	/**
99	* dev_ops: for driver device operations
100	*/
101	static struct dev_ops g_VBoxGuestSolarisDevOps =
102	{
103	DEVO_REV, /* driver build revision */
104	0, /* ref count */
105	VBoxGuestSolarisGetInfo,
106	nulldev, /* identify */
107	nulldev, /* probe */
108	VBoxGuestSolarisAttach,
109	VBoxGuestSolarisDetach,
110	nodev, /* reset */
111	&g_VBoxGuestSolarisCbOps,
112	(struct bus_ops *)0,
113	nodev /* power */
114	};
115
116	/**
117	* modldrv: export driver specifics to the kernel
118	*/
119	static struct modldrv g_VBoxGuestSolarisModule =
120	{
121	&mod_driverops, /* extern from kernel */
122	DEVICE_DESC " " VBOX_VERSION_STRING "r" RT_XSTR(VBOX_SVN_REV),
123	&g_VBoxGuestSolarisDevOps
124	};
125
126	/**
127	* modlinkage: export install/remove/info to the kernel
128	*/
129	static struct modlinkage g_VBoxGuestSolarisModLinkage =
130	{
131	MODREV_1, /* loadable module system revision */
132	&g_VBoxGuestSolarisModule,
133	NULL /* terminate array of linkage structures */
134	};
135
136	/**
137	* State info for each open file handle.
138	*/
139	typedef struct
140	{
141	/** Pointer to the session handle. */
142	PVBOXGUESTSESSION pSession;
143	/** The process reference for posting signals */
144	void *pvProcRef;
145	} vboxguest_state_t;
146
147
148	/*******************************************************************************
149	* Global Variables *
150	*******************************************************************************/
151	/** Device handle (we support only one instance). */
152	static dev_info_t *g_pDip = NULL;
153	/** Opaque pointer to file-descriptor states */
154	static void *g_pVBoxGuestSolarisState = NULL;
155	/** Device extention & session data association structure. */
156	static VBOXGUESTDEVEXT g_DevExt;
157	/** IO port handle. */
158	static ddi_acc_handle_t g_PciIOHandle;
159	/** MMIO handle. */
160	static ddi_acc_handle_t g_PciMMIOHandle;
161	/** IO Port. */
162	static uint16_t g_uIOPortBase;
163	/** Address of the MMIO region.*/
164	static caddr_t g_pMMIOBase;
165	/** Size of the MMIO region. */
166	static off_t g_cbMMIO;
167	/** Pointer to the interrupt handle vector */
168	static ddi_intr_handle_t *g_pIntr;
169	/** Number of actually allocated interrupt handles */
170	static size_t g_cIntrAllocated;
171	/** The pollhead structure */
172	static pollhead_t g_PollHead;
173	/** The IRQ Mutex */
174	static kmutex_t g_IrqMtx;
175
176	/**
177	* Kernel entry points
178	*/
179	int _init(void)
180	{
181	LogFlow((DEVICE_NAME ":_init\n"));
182
183	PRTLOGGER pRelLogger;
184	static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
185	int rc = RTLogCreate(&pRelLogger, 0 /* fFlags */, "all",
186	"VBOX_RELEASE_LOG", RT_ELEMENTS(s_apszGroups), s_apszGroups,
187	RTLOGDEST_STDOUT \| RTLOGDEST_DEBUGGER, NULL);
188	if (RT_SUCCESS(rc))
189	RTLogRelSetDefaultInstance(pRelLogger);
190	else
191	cmn_err(CE_NOTE, "failed to initialize driver logging rc=%d!\n", rc);
192
193	/*
194	* Prevent module autounloading.
195	*/
196	modctl_t *pModCtl = mod_getctl(&g_VBoxGuestSolarisModLinkage);
197	if (pModCtl)
198	pModCtl->mod_loadflags \|= MOD_NOAUTOUNLOAD;
199	else
200	LogRel((DEVICE_NAME ":failed to disable autounloading!\n"));
201
202
203	rc = ddi_soft_state_init(&g_pVBoxGuestSolarisState, sizeof(vboxguest_state_t), 1);
204	if (!rc)
205	{
206	rc = mod_install(&g_VBoxGuestSolarisModLinkage);
207	if (rc)
208	ddi_soft_state_fini(&g_pVBoxGuestSolarisState);
209	}
210	return rc;
211	}
212
213
214	int _fini(void)
215	{
216	LogFlow((DEVICE_NAME ":_fini\n"));
217	int rc = mod_remove(&g_VBoxGuestSolarisModLinkage);
218	if (!rc)
219	ddi_soft_state_fini(&g_pVBoxGuestSolarisState);
220
221	RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
222	RTLogDestroy(RTLogSetDefaultInstance(NULL));
223
224	return rc;
225	}
226
227
228	int _info(struct modinfo *pModInfo)
229	{
230	LogFlow((DEVICE_NAME ":_info\n"));
231	return mod_info(&g_VBoxGuestSolarisModLinkage, pModInfo);
232	}
233
234
235	/**
236	* Attach entry point, to attach a device to the system or resume it.
237	*
238	* @param pDip The module structure instance.
239	* @param enmCmd Attach type (ddi_attach_cmd_t)
240	*
241	* @return corresponding solaris error code.
242	*/
243	static int VBoxGuestSolarisAttach(dev_info_t *pDip, ddi_attach_cmd_t enmCmd)
244	{
245	LogFlow((DEVICE_NAME "::Attach\n"));
246	switch (enmCmd)
247	{
248	case DDI_ATTACH:
249	{
250	if (g_pDip)
251	{
252	LogRel((DEVICE_NAME "::Attach: Only one instance supported.\n"));
253	return DDI_FAILURE;
254	}
255
256	int rc;
257	int instance;
258
259	instance = ddi_get_instance(pDip);
260
261	/*
262	* Initialize IPRT R0 driver, which internally calls OS-specific r0 init.
263	*/
264	rc = RTR0Init(0);
265	if (RT_FAILURE(rc))
266	{
267	Log((DEVICE_NAME "::Attach: RTR0Init failed.\n"));
268	return DDI_FAILURE;
269	}
270
271	/*
272	* Enable resources for PCI access.
273	*/
274	ddi_acc_handle_t PciHandle;
275	rc = pci_config_setup(pDip, &PciHandle);
276	if (rc == DDI_SUCCESS)
277	{
278	/*
279	* Map the register address space.
280	*/
281	caddr_t baseAddr;
282	ddi_device_acc_attr_t deviceAttr;
283	deviceAttr.devacc_attr_version = DDI_DEVICE_ATTR_V0;
284	deviceAttr.devacc_attr_endian_flags = DDI_NEVERSWAP_ACC;
285	deviceAttr.devacc_attr_dataorder = DDI_STRICTORDER_ACC;
286	deviceAttr.devacc_attr_access = DDI_DEFAULT_ACC;
287	rc = ddi_regs_map_setup(pDip, 1, &baseAddr, 0, 0, &deviceAttr, &g_PciIOHandle);
288	if (rc == DDI_SUCCESS)
289	{
290	/*
291	* Read size of the MMIO region.
292	*/
293	g_uIOPortBase = (uintptr_t)baseAddr;
294	rc = ddi_dev_regsize(pDip, 2, &g_cbMMIO);
295	if (rc == DDI_SUCCESS)
296	{
297	rc = ddi_regs_map_setup(pDip, 2, &g_pMMIOBase, 0, g_cbMMIO, &deviceAttr,
298	&g_PciMMIOHandle);
299	if (rc == DDI_SUCCESS)
300	{
301	/*
302	* Add IRQ of VMMDev.
303	*/
304	rc = VBoxGuestSolarisAddIRQ(pDip);
305	if (rc == DDI_SUCCESS)
306	{
307	/*
308	* Call the common device extension initializer.
309	*/
310	rc = VBoxGuestInitDevExt(&g_DevExt, g_uIOPortBase, g_pMMIOBase,
311	g_cbMMIO, VBOXOSTYPE_Solaris,
312	VMMDEV_EVENT_MOUSE_POSITION_CHANGED);
313	if (RT_SUCCESS(rc))
314	{
315	rc = ddi_create_minor_node(pDip, DEVICE_NAME, S_IFCHR, instance, DDI_PSEUDO, 0);
316	if (rc == DDI_SUCCESS)
317	{
318	g_pDip = pDip;
319	pci_config_teardown(&PciHandle);
320	return DDI_SUCCESS;
321	}
322
323	LogRel((DEVICE_NAME "::Attach: ddi_create_minor_node failed.\n"));
324	VBoxGuestDeleteDevExt(&g_DevExt);
325	}
326	else
327	LogRel((DEVICE_NAME "::Attach: VBoxGuestInitDevExt failed.\n"));
328	VBoxGuestSolarisRemoveIRQ(pDip);
329	}
330	else
331	LogRel((DEVICE_NAME "::Attach: VBoxGuestSolarisAddIRQ failed.\n"));
332	ddi_regs_map_free(&g_PciMMIOHandle);
333	}
334	else
335	LogRel((DEVICE_NAME "::Attach: ddi_regs_map_setup for MMIO region failed.\n"));
336	}
337	else
338	LogRel((DEVICE_NAME "::Attach: ddi_dev_regsize for MMIO region failed.\n"));
339	ddi_regs_map_free(&g_PciIOHandle);
340	}
341	else
342	LogRel((DEVICE_NAME "::Attach: ddi_regs_map_setup for IOport failed.\n"));
343	pci_config_teardown(&PciHandle);
344	}
345	else
346	LogRel((DEVICE_NAME "::Attach: pci_config_setup failed rc=%d.\n", rc));
347
348	RTR0Term();
349	return DDI_FAILURE;
350	}
351
352	case DDI_RESUME:
353	{
354	/** @todo implement resume for guest driver. */
355	return DDI_SUCCESS;
356	}
357
358	default:
359	return DDI_FAILURE;
360	}
361	}
362
363
364	/**
365	* Detach entry point, to detach a device to the system or suspend it.
366	*
367	* @param pDip The module structure instance.
368	* @param enmCmd Attach type (ddi_attach_cmd_t)
369	*
370	* @return corresponding solaris error code.
371	*/
372	static int VBoxGuestSolarisDetach(dev_info_t *pDip, ddi_detach_cmd_t enmCmd)
373	{
374	LogFlow((DEVICE_NAME "::Detach\n"));
375	switch (enmCmd)
376	{
377	case DDI_DETACH:
378	{
379	VBoxGuestSolarisRemoveIRQ(pDip);
380	ddi_regs_map_free(&g_PciIOHandle);
381	ddi_regs_map_free(&g_PciMMIOHandle);
382	ddi_remove_minor_node(pDip, NULL);
383	VBoxGuestDeleteDevExt(&g_DevExt);
384	RTR0Term();
385	g_pDip = NULL;
386	return DDI_SUCCESS;
387	}
388
389	case DDI_SUSPEND:
390	{
391	/** @todo implement suspend for guest driver. */
392	return DDI_SUCCESS;
393	}
394
395	default:
396	return DDI_FAILURE;
397	}
398	}
399
400
401	/**
402	* Info entry point, called by solaris kernel for obtaining driver info.
403	*
404	* @param pDip The module structure instance (do not use).
405	* @param enmCmd Information request type.
406	* @param pvArg Type specific argument.
407	* @param ppvResult Where to store the requested info.
408	*
409	* @return corresponding solaris error code.
410	*/
411	static int VBoxGuestSolarisGetInfo(dev_info_t pDip, ddi_info_cmd_t enmCmd, void pvArg, void **ppvResult)
412	{
413	LogFlow((DEVICE_NAME "::GetInfo\n"));
414
415	int rc = DDI_SUCCESS;
416	switch (enmCmd)
417	{
418	case DDI_INFO_DEVT2DEVINFO:
419	ppvResult = (void )g_pDip;
420	break;
421
422	case DDI_INFO_DEVT2INSTANCE:
423	ppvResult = (void )(uintptr_t)ddi_get_instance(g_pDip);
424	break;
425
426	default:
427	rc = DDI_FAILURE;
428	break;
429	}
430
431	NOREF(pvArg);
432	return rc;
433	}
434
435
436	/**
437	* User context entry points
438	*/
439	static int VBoxGuestSolarisOpen(dev_t pDev, int fFlag, int fType, cred_t pCred)
440	{
441	int rc;
442	PVBOXGUESTSESSION pSession = NULL;
443
444	LogFlow((DEVICE_NAME "::Open\n"));
445
446	/*
447	* Verify we are being opened as a character device.
448	*/
449	if (fType != OTYP_CHR)
450	return EINVAL;
451
452	vboxguest_state_t *pState = NULL;
453	unsigned iOpenInstance;
454	for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
455	{
456	if ( !ddi_get_soft_state(g_pVBoxGuestSolarisState, iOpenInstance) /* faster */
457	&& ddi_soft_state_zalloc(g_pVBoxGuestSolarisState, iOpenInstance) == DDI_SUCCESS)
458	{
459	pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, iOpenInstance);
460	break;
461	}
462	}
463	if (!pState)
464	{
465	Log((DEVICE_NAME "::Open: too many open instances."));
466	return ENXIO;
467	}
468
469	/*
470	* Create a new session.
471	*/
472	rc = VBoxGuestCreateUserSession(&g_DevExt, &pSession);
473	if (RT_SUCCESS(rc))
474	{
475	pState->pvProcRef = proc_ref();
476	pState->pSession = pSession;
477	pDev = makedevice(getmajor(pDev), iOpenInstance);
478	Log((DEVICE_NAME "::Open: pSession=%p pState=%p pid=%d\n", pSession, pState, (int)RTProcSelf()));
479	return 0;
480	}
481
482	/* Failed, clean up. */
483	ddi_soft_state_free(g_pVBoxGuestSolarisState, iOpenInstance);
484
485	LogRel((DEVICE_NAME "::Open: VBoxGuestCreateUserSession failed. rc=%d\n", rc));
486	return EFAULT;
487	}
488
489
490	static int VBoxGuestSolarisClose(dev_t Dev, int flag, int fType, cred_t *pCred)
491	{
492	LogFlow((DEVICE_NAME "::Close pid=%d\n", (int)RTProcSelf()));
493
494	PVBOXGUESTSESSION pSession = NULL;
495	vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
496	if (!pState)
497	{
498	Log((DEVICE_NAME "::Close: failed to get pState.\n"));
499	return EFAULT;
500	}
501
502	proc_unref(pState->pvProcRef);
503	pSession = pState->pSession;
504	pState->pSession = NULL;
505	Log((DEVICE_NAME "::Close: pSession=%p pState=%p\n", pSession, pState));
506	ddi_soft_state_free(g_pVBoxGuestSolarisState, getminor(Dev));
507	if (!pSession)
508	{
509	Log((DEVICE_NAME "::Close: failed to get pSession.\n"));
510	return EFAULT;
511	}
512
513	/*
514	* Close the session.
515	*/
516	VBoxGuestCloseSession(&g_DevExt, pSession);
517	return 0;
518	}
519
520
521	static int VBoxGuestSolarisRead(dev_t Dev, struct uio pUio, cred_t pCred)
522	{
523	LogFlow((DEVICE_NAME "::Read\n"));
524
525	vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
526	if (!pState)
527	{
528	Log((DEVICE_NAME "::Close: failed to get pState.\n"));
529	return EFAULT;
530	}
531
532	PVBOXGUESTSESSION pSession = pState->pSession;
533	uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
534	if (pSession->u32MousePosChangedSeq != u32CurSeq)
535	pSession->u32MousePosChangedSeq = u32CurSeq;
536
537	return 0;
538	}
539
540
541	static int VBoxGuestSolarisWrite(dev_t Dev, struct uio pUio, cred_t pCred)
542	{
543	LogFlow((DEVICE_NAME "::Write\n"));
544	return 0;
545	}
546
547
548	/** @def IOCPARM_LEN
549	* Gets the length from the ioctl number.
550	* This is normally defined by sys/ioccom.h on BSD systems...
551	*/
552	#ifndef IOCPARM_LEN
553	# define IOCPARM_LEN(Code) (((Code) >> 16) & IOCPARM_MASK)
554	#endif
555
556
557	/**
558	* Driver ioctl, an alternate entry point for this character driver.
559	*
560	* @param Dev Device number
561	* @param Cmd Operation identifier
562	* @param pArg Arguments from user to driver
563	* @param Mode Information bitfield (read/write, address space etc.)
564	* @param pCred User credentials
565	* @param pVal Return value for calling process.
566	*
567	* @return corresponding solaris error code.
568	*/
569	static int VBoxGuestSolarisIOCtl(dev_t Dev, int Cmd, intptr_t pArg, int Mode, cred_t pCred, int pVal)
570	{
571	LogFlow((DEVICE_NAME ":VBoxGuestSolarisIOCtl\n"));
572
573	/*
574	* Get the session from the soft state item.
575	*/
576	vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
577	if (!pState)
578	{
579	LogRel((DEVICE_NAME "::IOCtl: no state data for %d\n", getminor(Dev)));
580	return EINVAL;
581	}
582
583	PVBOXGUESTSESSION pSession = pState->pSession;
584	if (!pSession)
585	{
586	LogRel((DEVICE_NAME "::IOCtl: no session data for %d\n", getminor(Dev)));
587	return EINVAL;
588	}
589
590	/*
591	* Read and validate the request wrapper.
592	*/
593	VBGLBIGREQ ReqWrap;
594	if (IOCPARM_LEN(Cmd) != sizeof(ReqWrap))
595	{
596	LogRel((DEVICE_NAME "::IOCtl: bad request %#x size=%d expected=%d\n", Cmd, IOCPARM_LEN(Cmd), sizeof(ReqWrap)));
597	return ENOTTY;
598	}
599
600	int rc = ddi_copyin((void *)pArg, &ReqWrap, sizeof(ReqWrap), Mode);
601	if (RT_UNLIKELY(rc))
602	{
603	LogRel((DEVICE_NAME "::IOCtl: ddi_copyin failed to read header pArg=%p Cmd=%d. rc=%#x.\n", pArg, Cmd, rc));
604	return EINVAL;
605	}
606
607	if (ReqWrap.u32Magic != VBGLBIGREQ_MAGIC)
608	{
609	LogRel((DEVICE_NAME "::IOCtl: bad magic %#x; pArg=%p Cmd=%#x.\n", ReqWrap.u32Magic, pArg, Cmd));
610	return EINVAL;
611	}
612	if (RT_UNLIKELY(ReqWrap.cbData > _1M*16))
613	{
614	LogRel((DEVICE_NAME "::IOCtl: bad size %#x; pArg=%p Cmd=%#x.\n", ReqWrap.cbData, pArg, Cmd));
615	return EINVAL;
616	}
617
618	/*
619	* Read the request payload if any; requests like VBOXGUEST_IOCTL_CANCEL_ALL_WAITEVENTS have no data payload.
620	*/
621	void *pvBuf = NULL;
622	if (RT_LIKELY(ReqWrap.cbData > 0))
623	{
624	pvBuf = RTMemTmpAlloc(ReqWrap.cbData);
625	if (RT_UNLIKELY(!pvBuf))
626	{
627	LogRel((DEVICE_NAME "::IOCtl: RTMemTmpAlloc failed to alloc %d bytes.\n", ReqWrap.cbData));
628	return ENOMEM;
629	}
630
631	rc = ddi_copyin((void *)(uintptr_t)ReqWrap.pvDataR3, pvBuf, ReqWrap.cbData, Mode);
632	if (RT_UNLIKELY(rc))
633	{
634	RTMemTmpFree(pvBuf);
635	LogRel((DEVICE_NAME "::IOCtl: ddi_copyin failed; pvBuf=%p pArg=%p Cmd=%d. rc=%d\n", pvBuf, pArg, Cmd, rc));
636	return EFAULT;
637	}
638	if (RT_UNLIKELY(!VALID_PTR(pvBuf)))
639	{
640	RTMemTmpFree(pvBuf);
641	LogRel((DEVICE_NAME "::IOCtl: pvBuf invalid pointer %p\n", pvBuf));
642	return EINVAL;
643	}
644	}
645	Log((DEVICE_NAME "::IOCtl: pSession=%p pid=%d.\n", pSession, (int)RTProcSelf()));
646
647	/*
648	* Process the IOCtl.
649	*/
650	size_t cbDataReturned = 0;
651	rc = VBoxGuestCommonIOCtl(Cmd, &g_DevExt, pSession, pvBuf, ReqWrap.cbData, &cbDataReturned);
652	if (RT_SUCCESS(rc))
653	{
654	rc = 0;
655	if (RT_UNLIKELY(cbDataReturned > ReqWrap.cbData))
656	{
657	LogRel((DEVICE_NAME "::IOCtl: too much output data %d expected %d\n", cbDataReturned, ReqWrap.cbData));
658	cbDataReturned = ReqWrap.cbData;
659	}
660	if (cbDataReturned > 0)
661	{
662	rc = ddi_copyout(pvBuf, (void *)(uintptr_t)ReqWrap.pvDataR3, cbDataReturned, Mode);
663	if (RT_UNLIKELY(rc))
664	{
665	LogRel((DEVICE_NAME "::IOCtl: ddi_copyout failed; pvBuf=%p pArg=%p cbDataReturned=%u Cmd=%d. rc=%d\n",
666	pvBuf, pArg, cbDataReturned, Cmd, rc));
667	rc = EFAULT;
668	}
669	}
670	}
671	else
672	{
673	/*
674	* We Log() instead of LogRel() here because VBOXGUEST_IOCTL_WAITEVENT can return VERR_TIMEOUT,
675	* VBOXGUEST_IOCTL_CANCEL_ALL_EVENTS can return VERR_INTERRUPTED and possibly more in the future;
676	* which are not really failures that require logging.
677	*/
678	Log((DEVICE_NAME "::IOCtl: VBoxGuestCommonIOCtl failed. Cmd=%#x rc=%d\n", Cmd, rc));
679	rc = RTErrConvertToErrno(rc);
680	}
681	*pVal = rc;
682	if (pvBuf)
683	RTMemTmpFree(pvBuf);
684	return rc;
685	}
686
687
688	static int VBoxGuestSolarisPoll(dev_t Dev, short fEvents, int fAnyYet, short pReqEvents, struct pollhead *ppPollHead)
689	{
690	LogFlow((DEVICE_NAME "::Poll: fEvents=%d fAnyYet=%d\n", fEvents, fAnyYet));
691
692	vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
693	if (RT_LIKELY(pState))
694	{
695	PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pState->pSession;
696	uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
697	if (pSession->u32MousePosChangedSeq != u32CurSeq)
698	{
699	*pReqEvents \|= (POLLIN \| POLLRDNORM);
700	pSession->u32MousePosChangedSeq = u32CurSeq;
701	}
702	else
703	{
704	*pReqEvents = 0;
705	if (!fAnyYet)
706	*ppPollHead = &g_PollHead;
707	}
708
709	return 0;
710	}
711	else
712	{
713	Log((DEVICE_NAME "::Poll: no state data for %d\n", getminor(Dev)));
714	return EINVAL;
715	}
716	}
717
718
719	/**
720	* Sets IRQ for VMMDev.
721	*
722	* @returns Solaris error code.
723	* @param pDip Pointer to the device info structure.
724	*/
725	static int VBoxGuestSolarisAddIRQ(dev_info_t *pDip)
726	{
727	LogFlow((DEVICE_NAME "::AddIRQ: pDip=%p\n", pDip));
728
729	int IntrType = 0;
730	int rc = ddi_intr_get_supported_types(pDip, &IntrType);
731	if (rc == DDI_SUCCESS)
732	{
733	/* We won't need to bother about MSIs. */
734	if (IntrType & DDI_INTR_TYPE_FIXED)
735	{
736	int IntrCount = 0;
737	rc = ddi_intr_get_nintrs(pDip, IntrType, &IntrCount);
738	if ( rc == DDI_SUCCESS
739	&& IntrCount > 0)
740	{
741	int IntrAvail = 0;
742	rc = ddi_intr_get_navail(pDip, IntrType, &IntrAvail);
743	if ( rc == DDI_SUCCESS
744	&& IntrAvail > 0)
745	{
746	/* Allocated kernel memory for the interrupt handles. The allocation size is stored internally. */
747	g_pIntr = RTMemAlloc(IntrCount * sizeof(ddi_intr_handle_t));
748	if (g_pIntr)
749	{
750	int IntrAllocated;
751	rc = ddi_intr_alloc(pDip, g_pIntr, IntrType, 0, IntrCount, &IntrAllocated, DDI_INTR_ALLOC_NORMAL);
752	if ( rc == DDI_SUCCESS
753	&& IntrAllocated > 0)
754	{
755	g_cIntrAllocated = IntrAllocated;
756	uint_t uIntrPriority;
757	rc = ddi_intr_get_pri(g_pIntr[0], &uIntrPriority);
758	if (rc == DDI_SUCCESS)
759	{
760	/* Initialize the mutex. */
761	mutex_init(&g_IrqMtx, NULL, MUTEX_DRIVER, DDI_INTR_PRI(uIntrPriority));
762
763	/* Assign interrupt handler functions and enable interrupts. */
764	for (int i = 0; i < IntrAllocated; i++)
765	{
766	rc = ddi_intr_add_handler(g_pIntr[i], (ddi_intr_handler_t *)VBoxGuestSolarisISR,
767	NULL /* No Private Data */, NULL);
768	if (rc == DDI_SUCCESS)
769	rc = ddi_intr_enable(g_pIntr[i]);
770	if (rc != DDI_SUCCESS)
771	{
772	/* Changing local IntrAllocated to hold so-far allocated handles for freeing. */
773	IntrAllocated = i;
774	break;
775	}
776	}
777	if (rc == DDI_SUCCESS)
778	return rc;
779
780	/* Remove any assigned handlers */
781	LogRel((DEVICE_NAME ":failed to assign IRQs allocated=%d\n", IntrAllocated));
782	for (int x = 0; x < IntrAllocated; x++)
783	ddi_intr_remove_handler(g_pIntr[x]);
784	}
785	else
786	LogRel((DEVICE_NAME "::AddIRQ: failed to get priority of interrupt. rc=%d\n", rc));
787
788	/* Remove allocated IRQs, too bad we can free only one handle at a time. */
789	for (int k = 0; k < g_cIntrAllocated; k++)
790	ddi_intr_free(g_pIntr[k]);
791	}
792	else
793	LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", IntrCount));
794	RTMemFree(g_pIntr);
795	}
796	else
797	LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", IntrCount));
798	}
799	else
800	LogRel((DEVICE_NAME "::AddIRQ: failed to get or insufficient available IRQs. rc=%d IntrAvail=%d\n", rc, IntrAvail));
801	}
802	else
803	LogRel((DEVICE_NAME "::AddIRQ: failed to get or insufficient number of IRQs. rc=%d IntrCount=%d\n", rc, IntrCount));
804	}
805	else
806	LogRel((DEVICE_NAME "::AddIRQ: invalid irq type. IntrType=%#x\n", IntrType));
807	}
808	else
809	LogRel((DEVICE_NAME "::AddIRQ: failed to get supported interrupt types\n"));
810	return rc;
811	}
812
813
814	/**
815	* Removes IRQ for VMMDev.
816	*
817	* @param pDip Pointer to the device info structure.
818	*/
819	static void VBoxGuestSolarisRemoveIRQ(dev_info_t *pDip)
820	{
821	LogFlow((DEVICE_NAME "::RemoveIRQ:\n"));
822
823	for (int i = 0; i < g_cIntrAllocated; i++)
824	{
825	int rc = ddi_intr_disable(g_pIntr[i]);
826	if (rc == DDI_SUCCESS)
827	{
828	rc = ddi_intr_remove_handler(g_pIntr[i]);
829	if (rc == DDI_SUCCESS)
830	ddi_intr_free(g_pIntr[i]);
831	}
832	}
833	RTMemFree(g_pIntr);
834	mutex_destroy(&g_IrqMtx);
835	}
836
837
838	/**
839	* Interrupt Service Routine for VMMDev.
840	*
841	* @param Arg Private data (unused, will be NULL).
842	* @returns DDI_INTR_CLAIMED if it's our interrupt, DDI_INTR_UNCLAIMED if it isn't.
843	*/
844	static uint_t VBoxGuestSolarisISR(caddr_t Arg)
845	{
846	LogFlow((DEVICE_NAME "::ISR:\n"));
847
848	mutex_enter(&g_IrqMtx);
849	bool fOurIRQ = VBoxGuestCommonISR(&g_DevExt);
850	mutex_exit(&g_IrqMtx);
851
852	return fOurIRQ ? DDI_INTR_CLAIMED : DDI_INTR_UNCLAIMED;
853	}
854
855
856	void VBoxGuestNativeISRMousePollEvent(PVBOXGUESTDEVEXT pDevExt)
857	{
858	LogFlow((DEVICE_NAME "::NativeISRMousePollEvent:\n"));
859
860	/*
861	* Wake up poll waiters.
862	*/
863	pollwakeup(&g_PollHead, POLLIN \| POLLRDNORM);
864	}
865
866
867	/* Common code that depend on g_DevExt. */
868	#include "VBoxGuestIDC-unix.c.h"
869

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source: vbox/trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c@ 29246

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