VBoxGuest-solaris.c@ 34079

Last change on this file since 34079 was 33109, checked in by vboxsync, 14 years ago
Additions/solaris: Initialize IPRT as early as possible not on Attach. Fixes calling vbi_is_preempt_enabled without initializing vbi errors/warnings.
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File size: 28.9 KB

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1	/* $Id: VBoxGuest-solaris.c 33109 2010-10-13 15:11:10Z 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	/*
182	* Initialize IPRT R0 driver, which internally calls OS-specific r0 init.
183	*/
184	int rc = RTR0Init(0);
185	if (RT_SUCCESS(rc))
186	{
187	PRTLOGGER pRelLogger;
188	static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
189	rc = RTLogCreate(&pRelLogger, 0 /* fFlags */, "all",
190	"VBOX_RELEASE_LOG", RT_ELEMENTS(s_apszGroups), s_apszGroups,
191	RTLOGDEST_STDOUT \| RTLOGDEST_DEBUGGER, NULL);
192	if (RT_SUCCESS(rc))
193	RTLogRelSetDefaultInstance(pRelLogger);
194	else
195	cmn_err(CE_NOTE, "failed to initialize driver logging rc=%d!\n", rc);
196
197	/*
198	* Prevent module autounloading.
199	*/
200	modctl_t *pModCtl = mod_getctl(&g_VBoxGuestSolarisModLinkage);
201	if (pModCtl)
202	pModCtl->mod_loadflags \|= MOD_NOAUTOUNLOAD;
203	else
204	LogRel((DEVICE_NAME ":failed to disable autounloading!\n"));
205
206	rc = ddi_soft_state_init(&g_pVBoxGuestSolarisState, sizeof(vboxguest_state_t), 1);
207	if (!rc)
208	{
209	rc = mod_install(&g_VBoxGuestSolarisModLinkage);
210	if (rc)
211	ddi_soft_state_fini(&g_pVBoxGuestSolarisState);
212	}
213	}
214	else
215	{
216	cmn_err(CE_NOTE, "_init: RTR0Init failed. rc=%d\n", rc);
217	return EINVAL;
218	}
219
220	return rc;
221	}
222
223
224	int _fini(void)
225	{
226	LogFlow((DEVICE_NAME ":_fini\n"));
227	int rc = mod_remove(&g_VBoxGuestSolarisModLinkage);
228	if (!rc)
229	ddi_soft_state_fini(&g_pVBoxGuestSolarisState);
230
231	RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
232	RTLogDestroy(RTLogSetDefaultInstance(NULL));
233
234	RTR0Term();
235	return rc;
236	}
237
238
239	int _info(struct modinfo *pModInfo)
240	{
241	LogFlow((DEVICE_NAME ":_info\n"));
242	return mod_info(&g_VBoxGuestSolarisModLinkage, pModInfo);
243	}
244
245
246	/**
247	* Attach entry point, to attach a device to the system or resume it.
248	*
249	* @param pDip The module structure instance.
250	* @param enmCmd Attach type (ddi_attach_cmd_t)
251	*
252	* @return corresponding solaris error code.
253	*/
254	static int VBoxGuestSolarisAttach(dev_info_t *pDip, ddi_attach_cmd_t enmCmd)
255	{
256	LogFlow((DEVICE_NAME "::Attach\n"));
257	switch (enmCmd)
258	{
259	case DDI_ATTACH:
260	{
261	if (g_pDip)
262	{
263	LogRel((DEVICE_NAME "::Attach: Only one instance supported.\n"));
264	return DDI_FAILURE;
265	}
266
267	int instance = ddi_get_instance(pDip);
268
269	/*
270	* Enable resources for PCI access.
271	*/
272	ddi_acc_handle_t PciHandle;
273	int rc = pci_config_setup(pDip, &PciHandle);
274	if (rc == DDI_SUCCESS)
275	{
276	/*
277	* Map the register address space.
278	*/
279	caddr_t baseAddr;
280	ddi_device_acc_attr_t deviceAttr;
281	deviceAttr.devacc_attr_version = DDI_DEVICE_ATTR_V0;
282	deviceAttr.devacc_attr_endian_flags = DDI_NEVERSWAP_ACC;
283	deviceAttr.devacc_attr_dataorder = DDI_STRICTORDER_ACC;
284	deviceAttr.devacc_attr_access = DDI_DEFAULT_ACC;
285	rc = ddi_regs_map_setup(pDip, 1, &baseAddr, 0, 0, &deviceAttr, &g_PciIOHandle);
286	if (rc == DDI_SUCCESS)
287	{
288	/*
289	* Read size of the MMIO region.
290	*/
291	g_uIOPortBase = (uintptr_t)baseAddr;
292	rc = ddi_dev_regsize(pDip, 2, &g_cbMMIO);
293	if (rc == DDI_SUCCESS)
294	{
295	rc = ddi_regs_map_setup(pDip, 2, &g_pMMIOBase, 0, g_cbMMIO, &deviceAttr,
296	&g_PciMMIOHandle);
297	if (rc == DDI_SUCCESS)
298	{
299	/*
300	* Add IRQ of VMMDev.
301	*/
302	rc = VBoxGuestSolarisAddIRQ(pDip);
303	if (rc == DDI_SUCCESS)
304	{
305	/*
306	* Call the common device extension initializer.
307	*/
308	rc = VBoxGuestInitDevExt(&g_DevExt, g_uIOPortBase, g_pMMIOBase,
309	g_cbMMIO, VBOXOSTYPE_Solaris,
310	VMMDEV_EVENT_MOUSE_POSITION_CHANGED);
311	if (RT_SUCCESS(rc))
312	{
313	rc = ddi_create_minor_node(pDip, DEVICE_NAME, S_IFCHR, instance, DDI_PSEUDO, 0);
314	if (rc == DDI_SUCCESS)
315	{
316	g_pDip = pDip;
317	pci_config_teardown(&PciHandle);
318	return DDI_SUCCESS;
319	}
320
321	LogRel((DEVICE_NAME "::Attach: ddi_create_minor_node failed.\n"));
322	VBoxGuestDeleteDevExt(&g_DevExt);
323	}
324	else
325	LogRel((DEVICE_NAME "::Attach: VBoxGuestInitDevExt failed.\n"));
326	VBoxGuestSolarisRemoveIRQ(pDip);
327	}
328	else
329	LogRel((DEVICE_NAME "::Attach: VBoxGuestSolarisAddIRQ failed.\n"));
330	ddi_regs_map_free(&g_PciMMIOHandle);
331	}
332	else
333	LogRel((DEVICE_NAME "::Attach: ddi_regs_map_setup for MMIO region failed.\n"));
334	}
335	else
336	LogRel((DEVICE_NAME "::Attach: ddi_dev_regsize for MMIO region failed.\n"));
337	ddi_regs_map_free(&g_PciIOHandle);
338	}
339	else
340	LogRel((DEVICE_NAME "::Attach: ddi_regs_map_setup for IOport failed.\n"));
341	pci_config_teardown(&PciHandle);
342	}
343	else
344	LogRel((DEVICE_NAME "::Attach: pci_config_setup failed rc=%d.\n", rc));
345	return DDI_FAILURE;
346	}
347
348	case DDI_RESUME:
349	{
350	/** @todo implement resume for guest driver. */
351	return DDI_SUCCESS;
352	}
353
354	default:
355	return DDI_FAILURE;
356	}
357	}
358
359
360	/**
361	* Detach entry point, to detach a device to the system or suspend it.
362	*
363	* @param pDip The module structure instance.
364	* @param enmCmd Attach type (ddi_attach_cmd_t)
365	*
366	* @return corresponding solaris error code.
367	*/
368	static int VBoxGuestSolarisDetach(dev_info_t *pDip, ddi_detach_cmd_t enmCmd)
369	{
370	LogFlow((DEVICE_NAME "::Detach\n"));
371	switch (enmCmd)
372	{
373	case DDI_DETACH:
374	{
375	VBoxGuestSolarisRemoveIRQ(pDip);
376	ddi_regs_map_free(&g_PciIOHandle);
377	ddi_regs_map_free(&g_PciMMIOHandle);
378	ddi_remove_minor_node(pDip, NULL);
379	VBoxGuestDeleteDevExt(&g_DevExt);
380	g_pDip = NULL;
381	return DDI_SUCCESS;
382	}
383
384	case DDI_SUSPEND:
385	{
386	/** @todo implement suspend for guest driver. */
387	return DDI_SUCCESS;
388	}
389
390	default:
391	return DDI_FAILURE;
392	}
393	}
394
395
396	/**
397	* Info entry point, called by solaris kernel for obtaining driver info.
398	*
399	* @param pDip The module structure instance (do not use).
400	* @param enmCmd Information request type.
401	* @param pvArg Type specific argument.
402	* @param ppvResult Where to store the requested info.
403	*
404	* @return corresponding solaris error code.
405	*/
406	static int VBoxGuestSolarisGetInfo(dev_info_t pDip, ddi_info_cmd_t enmCmd, void pvArg, void **ppvResult)
407	{
408	LogFlow((DEVICE_NAME "::GetInfo\n"));
409
410	int rc = DDI_SUCCESS;
411	switch (enmCmd)
412	{
413	case DDI_INFO_DEVT2DEVINFO:
414	ppvResult = (void )g_pDip;
415	break;
416
417	case DDI_INFO_DEVT2INSTANCE:
418	ppvResult = (void )(uintptr_t)ddi_get_instance(g_pDip);
419	break;
420
421	default:
422	rc = DDI_FAILURE;
423	break;
424	}
425
426	NOREF(pvArg);
427	return rc;
428	}
429
430
431	/**
432	* User context entry points
433	*/
434	static int VBoxGuestSolarisOpen(dev_t pDev, int fFlag, int fType, cred_t pCred)
435	{
436	int rc;
437	PVBOXGUESTSESSION pSession = NULL;
438
439	LogFlow((DEVICE_NAME "::Open\n"));
440
441	/*
442	* Verify we are being opened as a character device.
443	*/
444	if (fType != OTYP_CHR)
445	return EINVAL;
446
447	vboxguest_state_t *pState = NULL;
448	unsigned iOpenInstance;
449	for (iOpenInstance = 0; iOpenInstance < 4096; iOpenInstance++)
450	{
451	if ( !ddi_get_soft_state(g_pVBoxGuestSolarisState, iOpenInstance) /* faster */
452	&& ddi_soft_state_zalloc(g_pVBoxGuestSolarisState, iOpenInstance) == DDI_SUCCESS)
453	{
454	pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, iOpenInstance);
455	break;
456	}
457	}
458	if (!pState)
459	{
460	Log((DEVICE_NAME "::Open: too many open instances."));
461	return ENXIO;
462	}
463
464	/*
465	* Create a new session.
466	*/
467	rc = VBoxGuestCreateUserSession(&g_DevExt, &pSession);
468	if (RT_SUCCESS(rc))
469	{
470	pState->pvProcRef = proc_ref();
471	pState->pSession = pSession;
472	pDev = makedevice(getmajor(pDev), iOpenInstance);
473	Log((DEVICE_NAME "::Open: pSession=%p pState=%p pid=%d\n", pSession, pState, (int)RTProcSelf()));
474	return 0;
475	}
476
477	/* Failed, clean up. */
478	ddi_soft_state_free(g_pVBoxGuestSolarisState, iOpenInstance);
479
480	LogRel((DEVICE_NAME "::Open: VBoxGuestCreateUserSession failed. rc=%d\n", rc));
481	return EFAULT;
482	}
483
484
485	static int VBoxGuestSolarisClose(dev_t Dev, int flag, int fType, cred_t *pCred)
486	{
487	LogFlow((DEVICE_NAME "::Close pid=%d\n", (int)RTProcSelf()));
488
489	PVBOXGUESTSESSION pSession = NULL;
490	vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
491	if (!pState)
492	{
493	Log((DEVICE_NAME "::Close: failed to get pState.\n"));
494	return EFAULT;
495	}
496
497	proc_unref(pState->pvProcRef);
498	pSession = pState->pSession;
499	pState->pSession = NULL;
500	Log((DEVICE_NAME "::Close: pSession=%p pState=%p\n", pSession, pState));
501	ddi_soft_state_free(g_pVBoxGuestSolarisState, getminor(Dev));
502	if (!pSession)
503	{
504	Log((DEVICE_NAME "::Close: failed to get pSession.\n"));
505	return EFAULT;
506	}
507
508	/*
509	* Close the session.
510	*/
511	VBoxGuestCloseSession(&g_DevExt, pSession);
512	return 0;
513	}
514
515
516	static int VBoxGuestSolarisRead(dev_t Dev, struct uio pUio, cred_t pCred)
517	{
518	LogFlow((DEVICE_NAME "::Read\n"));
519
520	vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
521	if (!pState)
522	{
523	Log((DEVICE_NAME "::Close: failed to get pState.\n"));
524	return EFAULT;
525	}
526
527	PVBOXGUESTSESSION pSession = pState->pSession;
528	uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
529	if (pSession->u32MousePosChangedSeq != u32CurSeq)
530	pSession->u32MousePosChangedSeq = u32CurSeq;
531
532	return 0;
533	}
534
535
536	static int VBoxGuestSolarisWrite(dev_t Dev, struct uio pUio, cred_t pCred)
537	{
538	LogFlow((DEVICE_NAME "::Write\n"));
539	return 0;
540	}
541
542
543	/** @def IOCPARM_LEN
544	* Gets the length from the ioctl number.
545	* This is normally defined by sys/ioccom.h on BSD systems...
546	*/
547	#ifndef IOCPARM_LEN
548	# define IOCPARM_LEN(Code) (((Code) >> 16) & IOCPARM_MASK)
549	#endif
550
551
552	/**
553	* Driver ioctl, an alternate entry point for this character driver.
554	*
555	* @param Dev Device number
556	* @param Cmd Operation identifier
557	* @param pArg Arguments from user to driver
558	* @param Mode Information bitfield (read/write, address space etc.)
559	* @param pCred User credentials
560	* @param pVal Return value for calling process.
561	*
562	* @return corresponding solaris error code.
563	*/
564	static int VBoxGuestSolarisIOCtl(dev_t Dev, int Cmd, intptr_t pArg, int Mode, cred_t pCred, int pVal)
565	{
566	LogFlow((DEVICE_NAME ":VBoxGuestSolarisIOCtl\n"));
567
568	/*
569	* Get the session from the soft state item.
570	*/
571	vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
572	if (!pState)
573	{
574	LogRel((DEVICE_NAME "::IOCtl: no state data for %d\n", getminor(Dev)));
575	return EINVAL;
576	}
577
578	PVBOXGUESTSESSION pSession = pState->pSession;
579	if (!pSession)
580	{
581	LogRel((DEVICE_NAME "::IOCtl: no session data for %d\n", getminor(Dev)));
582	return EINVAL;
583	}
584
585	/*
586	* Read and validate the request wrapper.
587	*/
588	VBGLBIGREQ ReqWrap;
589	if (IOCPARM_LEN(Cmd) != sizeof(ReqWrap))
590	{
591	LogRel((DEVICE_NAME "::IOCtl: bad request %#x size=%d expected=%d\n", Cmd, IOCPARM_LEN(Cmd), sizeof(ReqWrap)));
592	return ENOTTY;
593	}
594
595	int rc = ddi_copyin((void *)pArg, &ReqWrap, sizeof(ReqWrap), Mode);
596	if (RT_UNLIKELY(rc))
597	{
598	LogRel((DEVICE_NAME "::IOCtl: ddi_copyin failed to read header pArg=%p Cmd=%d. rc=%#x.\n", pArg, Cmd, rc));
599	return EINVAL;
600	}
601
602	if (ReqWrap.u32Magic != VBGLBIGREQ_MAGIC)
603	{
604	LogRel((DEVICE_NAME "::IOCtl: bad magic %#x; pArg=%p Cmd=%#x.\n", ReqWrap.u32Magic, pArg, Cmd));
605	return EINVAL;
606	}
607	if (RT_UNLIKELY(ReqWrap.cbData > _1M*16))
608	{
609	LogRel((DEVICE_NAME "::IOCtl: bad size %#x; pArg=%p Cmd=%#x.\n", ReqWrap.cbData, pArg, Cmd));
610	return EINVAL;
611	}
612
613	/*
614	* Read the request payload if any; requests like VBOXGUEST_IOCTL_CANCEL_ALL_WAITEVENTS have no data payload.
615	*/
616	void *pvBuf = NULL;
617	if (RT_LIKELY(ReqWrap.cbData > 0))
618	{
619	pvBuf = RTMemTmpAlloc(ReqWrap.cbData);
620	if (RT_UNLIKELY(!pvBuf))
621	{
622	LogRel((DEVICE_NAME "::IOCtl: RTMemTmpAlloc failed to alloc %d bytes.\n", ReqWrap.cbData));
623	return ENOMEM;
624	}
625
626	rc = ddi_copyin((void *)(uintptr_t)ReqWrap.pvDataR3, pvBuf, ReqWrap.cbData, Mode);
627	if (RT_UNLIKELY(rc))
628	{
629	RTMemTmpFree(pvBuf);
630	LogRel((DEVICE_NAME "::IOCtl: ddi_copyin failed; pvBuf=%p pArg=%p Cmd=%d. rc=%d\n", pvBuf, pArg, Cmd, rc));
631	return EFAULT;
632	}
633	if (RT_UNLIKELY(!VALID_PTR(pvBuf)))
634	{
635	RTMemTmpFree(pvBuf);
636	LogRel((DEVICE_NAME "::IOCtl: pvBuf invalid pointer %p\n", pvBuf));
637	return EINVAL;
638	}
639	}
640	Log((DEVICE_NAME "::IOCtl: pSession=%p pid=%d.\n", pSession, (int)RTProcSelf()));
641
642	/*
643	* Process the IOCtl.
644	*/
645	size_t cbDataReturned = 0;
646	rc = VBoxGuestCommonIOCtl(Cmd, &g_DevExt, pSession, pvBuf, ReqWrap.cbData, &cbDataReturned);
647	if (RT_SUCCESS(rc))
648	{
649	rc = 0;
650	if (RT_UNLIKELY(cbDataReturned > ReqWrap.cbData))
651	{
652	LogRel((DEVICE_NAME "::IOCtl: too much output data %d expected %d\n", cbDataReturned, ReqWrap.cbData));
653	cbDataReturned = ReqWrap.cbData;
654	}
655	if (cbDataReturned > 0)
656	{
657	rc = ddi_copyout(pvBuf, (void *)(uintptr_t)ReqWrap.pvDataR3, cbDataReturned, Mode);
658	if (RT_UNLIKELY(rc))
659	{
660	LogRel((DEVICE_NAME "::IOCtl: ddi_copyout failed; pvBuf=%p pArg=%p cbDataReturned=%u Cmd=%d. rc=%d\n",
661	pvBuf, pArg, cbDataReturned, Cmd, rc));
662	rc = EFAULT;
663	}
664	}
665	}
666	else
667	{
668	/*
669	* We Log() instead of LogRel() here because VBOXGUEST_IOCTL_WAITEVENT can return VERR_TIMEOUT,
670	* VBOXGUEST_IOCTL_CANCEL_ALL_EVENTS can return VERR_INTERRUPTED and possibly more in the future;
671	* which are not really failures that require logging.
672	*/
673	Log((DEVICE_NAME "::IOCtl: VBoxGuestCommonIOCtl failed. Cmd=%#x rc=%d\n", Cmd, rc));
674	rc = RTErrConvertToErrno(rc);
675	}
676	*pVal = rc;
677	if (pvBuf)
678	RTMemTmpFree(pvBuf);
679	return rc;
680	}
681
682
683	static int VBoxGuestSolarisPoll(dev_t Dev, short fEvents, int fAnyYet, short pReqEvents, struct pollhead *ppPollHead)
684	{
685	LogFlow((DEVICE_NAME "::Poll: fEvents=%d fAnyYet=%d\n", fEvents, fAnyYet));
686
687	vboxguest_state_t *pState = ddi_get_soft_state(g_pVBoxGuestSolarisState, getminor(Dev));
688	if (RT_LIKELY(pState))
689	{
690	PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pState->pSession;
691	uint32_t u32CurSeq = ASMAtomicUoReadU32(&g_DevExt.u32MousePosChangedSeq);
692	if (pSession->u32MousePosChangedSeq != u32CurSeq)
693	{
694	*pReqEvents \|= (POLLIN \| POLLRDNORM);
695	pSession->u32MousePosChangedSeq = u32CurSeq;
696	}
697	else
698	{
699	*pReqEvents = 0;
700	if (!fAnyYet)
701	*ppPollHead = &g_PollHead;
702	}
703
704	return 0;
705	}
706	else
707	{
708	Log((DEVICE_NAME "::Poll: no state data for %d\n", getminor(Dev)));
709	return EINVAL;
710	}
711	}
712
713
714	/**
715	* Sets IRQ for VMMDev.
716	*
717	* @returns Solaris error code.
718	* @param pDip Pointer to the device info structure.
719	*/
720	static int VBoxGuestSolarisAddIRQ(dev_info_t *pDip)
721	{
722	LogFlow((DEVICE_NAME "::AddIRQ: pDip=%p\n", pDip));
723
724	int IntrType = 0;
725	int rc = ddi_intr_get_supported_types(pDip, &IntrType);
726	if (rc == DDI_SUCCESS)
727	{
728	/* We won't need to bother about MSIs. */
729	if (IntrType & DDI_INTR_TYPE_FIXED)
730	{
731	int IntrCount = 0;
732	rc = ddi_intr_get_nintrs(pDip, IntrType, &IntrCount);
733	if ( rc == DDI_SUCCESS
734	&& IntrCount > 0)
735	{
736	int IntrAvail = 0;
737	rc = ddi_intr_get_navail(pDip, IntrType, &IntrAvail);
738	if ( rc == DDI_SUCCESS
739	&& IntrAvail > 0)
740	{
741	/* Allocated kernel memory for the interrupt handles. The allocation size is stored internally. */
742	g_pIntr = RTMemAlloc(IntrCount * sizeof(ddi_intr_handle_t));
743	if (g_pIntr)
744	{
745	int IntrAllocated;
746	rc = ddi_intr_alloc(pDip, g_pIntr, IntrType, 0, IntrCount, &IntrAllocated, DDI_INTR_ALLOC_NORMAL);
747	if ( rc == DDI_SUCCESS
748	&& IntrAllocated > 0)
749	{
750	g_cIntrAllocated = IntrAllocated;
751	uint_t uIntrPriority;
752	rc = ddi_intr_get_pri(g_pIntr[0], &uIntrPriority);
753	if (rc == DDI_SUCCESS)
754	{
755	/* Initialize the mutex. */
756	mutex_init(&g_IrqMtx, NULL, MUTEX_DRIVER, DDI_INTR_PRI(uIntrPriority));
757
758	/* Assign interrupt handler functions and enable interrupts. */
759	for (int i = 0; i < IntrAllocated; i++)
760	{
761	rc = ddi_intr_add_handler(g_pIntr[i], (ddi_intr_handler_t *)VBoxGuestSolarisISR,
762	NULL /* No Private Data */, NULL);
763	if (rc == DDI_SUCCESS)
764	rc = ddi_intr_enable(g_pIntr[i]);
765	if (rc != DDI_SUCCESS)
766	{
767	/* Changing local IntrAllocated to hold so-far allocated handles for freeing. */
768	IntrAllocated = i;
769	break;
770	}
771	}
772	if (rc == DDI_SUCCESS)
773	return rc;
774
775	/* Remove any assigned handlers */
776	LogRel((DEVICE_NAME ":failed to assign IRQs allocated=%d\n", IntrAllocated));
777	for (int x = 0; x < IntrAllocated; x++)
778	ddi_intr_remove_handler(g_pIntr[x]);
779	}
780	else
781	LogRel((DEVICE_NAME "::AddIRQ: failed to get priority of interrupt. rc=%d\n", rc));
782
783	/* Remove allocated IRQs, too bad we can free only one handle at a time. */
784	for (int k = 0; k < g_cIntrAllocated; k++)
785	ddi_intr_free(g_pIntr[k]);
786	}
787	else
788	LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", IntrCount));
789	RTMemFree(g_pIntr);
790	}
791	else
792	LogRel((DEVICE_NAME "::AddIRQ: failed to allocated IRQs. count=%d\n", IntrCount));
793	}
794	else
795	LogRel((DEVICE_NAME "::AddIRQ: failed to get or insufficient available IRQs. rc=%d IntrAvail=%d\n", rc, IntrAvail));
796	}
797	else
798	LogRel((DEVICE_NAME "::AddIRQ: failed to get or insufficient number of IRQs. rc=%d IntrCount=%d\n", rc, IntrCount));
799	}
800	else
801	LogRel((DEVICE_NAME "::AddIRQ: invalid irq type. IntrType=%#x\n", IntrType));
802	}
803	else
804	LogRel((DEVICE_NAME "::AddIRQ: failed to get supported interrupt types\n"));
805	return rc;
806	}
807
808
809	/**
810	* Removes IRQ for VMMDev.
811	*
812	* @param pDip Pointer to the device info structure.
813	*/
814	static void VBoxGuestSolarisRemoveIRQ(dev_info_t *pDip)
815	{
816	LogFlow((DEVICE_NAME "::RemoveIRQ:\n"));
817
818	for (int i = 0; i < g_cIntrAllocated; i++)
819	{
820	int rc = ddi_intr_disable(g_pIntr[i]);
821	if (rc == DDI_SUCCESS)
822	{
823	rc = ddi_intr_remove_handler(g_pIntr[i]);
824	if (rc == DDI_SUCCESS)
825	ddi_intr_free(g_pIntr[i]);
826	}
827	}
828	RTMemFree(g_pIntr);
829	mutex_destroy(&g_IrqMtx);
830	}
831
832
833	/**
834	* Interrupt Service Routine for VMMDev.
835	*
836	* @param Arg Private data (unused, will be NULL).
837	* @returns DDI_INTR_CLAIMED if it's our interrupt, DDI_INTR_UNCLAIMED if it isn't.
838	*/
839	static uint_t VBoxGuestSolarisISR(caddr_t Arg)
840	{
841	LogFlow((DEVICE_NAME "::ISR:\n"));
842
843	mutex_enter(&g_IrqMtx);
844	bool fOurIRQ = VBoxGuestCommonISR(&g_DevExt);
845	mutex_exit(&g_IrqMtx);
846
847	return fOurIRQ ? DDI_INTR_CLAIMED : DDI_INTR_UNCLAIMED;
848	}
849
850
851	void VBoxGuestNativeISRMousePollEvent(PVBOXGUESTDEVEXT pDevExt)
852	{
853	LogFlow((DEVICE_NAME "::NativeISRMousePollEvent:\n"));
854
855	/*
856	* Wake up poll waiters.
857	*/
858	pollwakeup(&g_PollHead, POLLIN \| POLLRDNORM);
859	}
860
861
862	/* Common code that depend on g_DevExt. */
863	#include "VBoxGuestIDC-unix.c.h"
864

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source: vbox/trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-solaris.c@ 34079

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