VBoxGuestPnP.cpp@ 1176

Last change on this file since 1176 was 1, checked in by vboxsync, 55 years ago
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1	/** @file
2	*
3	* VBoxGuest -- VirtualBox Win32 guest support driver PnP code
4	*
5	* Copyright (C) 2006 InnoTek Systemberatung GmbH
6	*
7	* This file is part of VirtualBox Open Source Edition (OSE), as
8	* available from http://www.virtualbox.org. This file is free software;
9	* you can redistribute it and/or modify it under the terms of the GNU
10	* General Public License as published by the Free Software Foundation,
11	* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
12	* distribution. VirtualBox OSE is distributed in the hope that it will
13	* be useful, but WITHOUT ANY WARRANTY of any kind.
14	*
15	* If you received this file as part of a commercial VirtualBox
16	* distribution, then only the terms of your commercial VirtualBox
17	* license agreement apply instead of the previous paragraph.
18	*
19	*/
20
21	// enable backdoor logging
22	//#define LOG_ENABLED
23
24	/*******************************************************************************
25	* Header Files *
26	*******************************************************************************/
27	#include "VBoxGuestPnP.h"
28	#include "Helper.h"
29	#include <VBox/err.h>
30
31	#include <VBox/VBoxGuestLib.h>
32
33	/*******************************************************************************
34	* Defined Constants And Macros *
35	*******************************************************************************/
36
37
38	extern "C"
39	{
40	static NTSTATUS sendIrpSynchronously(PDEVICE_OBJECT pDevObj, PIRP pIrp, BOOLEAN fStrict);
41	static NTSTATUS pnpIrpComplete(PDEVICE_OBJECT pDevObj, PIRP pIrp, PKEVENT event);
42	static VOID showDeviceResources(PCM_PARTIAL_RESOURCE_LIST pResourceList);
43	}
44
45	#ifdef ALLOC_PRAGMA
46	#pragma alloc_text (PAGE, VBoxGuestPnP)
47	#pragma alloc_text (PAGE, VBoxGuestPower)
48	#pragma alloc_text (PAGE, sendIrpSynchronously)
49	#pragma alloc_text (PAGE, pnpIrpComplete)
50	#pragma alloc_text (PAGE, showDeviceResources)
51	#endif
52
53	/* reenable logging, this was #undef'ed on iprt/log.h for RING0 */
54	#define LOG_ENABLED
55
56	/*******************************************************************************
57	* Internal Functions *
58	*******************************************************************************/
59
60	/**
61	* Irp completion routine for PnP Irps we send.
62	*
63	* @param pDevObj Device object.
64	* @param pIrp Request packet.
65	* @param event Semaphore.
66	* @return NT status code
67	*/
68	static NTSTATUS pnpIrpComplete(PDEVICE_OBJECT pDevObj, PIRP pIrp, PKEVENT event)
69	{
70	KeSetEvent(event, 0, FALSE);
71	return STATUS_MORE_PROCESSING_REQUIRED;
72	}
73
74	/**
75	* Helper to send a PnP IRP and wait until it's done.
76	*
77	* @param pDevObj Device object.
78	* @param pIrp Request packet.
79	* @param fStrict When set, returns an error if the IRP gives an error.
80	* @return NT status code
81	*/
82	static NTSTATUS sendIrpSynchronously(PDEVICE_OBJECT pDevObj, PIRP pIrp, BOOLEAN fStrict)
83	{
84	KEVENT event;
85
86	KeInitializeEvent(&event, SynchronizationEvent, FALSE);
87
88	IoCopyCurrentIrpStackLocationToNext(pIrp);
89	IoSetCompletionRoutine(pIrp, (PIO_COMPLETION_ROUTINE)pnpIrpComplete, &event, TRUE, TRUE, TRUE);
90
91	NTSTATUS rc = IoCallDriver(pDevObj, pIrp);
92
93	if (rc == STATUS_PENDING)
94	{
95	KeWaitForSingleObject(&event, Executive, KernelMode, FALSE, NULL);
96	rc = pIrp->IoStatus.Status;
97	}
98
99	if (!fStrict
100	&& (rc == STATUS_NOT_SUPPORTED \|\| rc == STATUS_INVALID_DEVICE_REQUEST))
101	{
102	rc = STATUS_SUCCESS;
103	}
104
105	dprintf(("VBoxGuest::sendIrpSynchronously: returning 0x%x\n", rc));
106
107	return rc;
108	}
109
110
111	/**
112	* PnP Request handler.
113	*
114	* @param pDevObj Device object.
115	* @param pIrp Request packet.
116	*/
117	NTSTATUS VBoxGuestPnP(PDEVICE_OBJECT pDevObj, PIRP pIrp)
118	{
119	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
120	PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
121	NTSTATUS rc = STATUS_SUCCESS;
122
123	#ifdef LOG_ENABLED
124	static char* fcnname[] =
125	{
126	"IRP_MN_START_DEVICE",
127	"IRP_MN_QUERY_REMOVE_DEVICE",
128	"IRP_MN_REMOVE_DEVICE",
129	"IRP_MN_CANCEL_REMOVE_DEVICE",
130	"IRP_MN_STOP_DEVICE",
131	"IRP_MN_QUERY_STOP_DEVICE",
132	"IRP_MN_CANCEL_STOP_DEVICE",
133	"IRP_MN_QUERY_DEVICE_RELATIONS",
134	"IRP_MN_QUERY_INTERFACE",
135	"IRP_MN_QUERY_CAPABILITIES",
136	"IRP_MN_QUERY_RESOURCES",
137	"IRP_MN_QUERY_RESOURCE_REQUIREMENTS",
138	"IRP_MN_QUERY_DEVICE_TEXT",
139	"IRP_MN_FILTER_RESOURCE_REQUIREMENTS",
140	"",
141	"IRP_MN_READ_CONFIG",
142	"IRP_MN_WRITE_CONFIG",
143	"IRP_MN_EJECT",
144	"IRP_MN_SET_LOCK",
145	"IRP_MN_QUERY_ID",
146	"IRP_MN_QUERY_PNP_DEVICE_STATE",
147	"IRP_MN_QUERY_BUS_INFORMATION",
148	"IRP_MN_DEVICE_USAGE_NOTIFICATION",
149	"IRP_MN_SURPRISE_REMOVAL",
150	};
151	dprintf(("VBoxGuest::VBoxGuestPnp: MinorFunction: %s\n", pStack->MinorFunction < (sizeof(fcnname)/sizeof(fcnname[0])) ? fcnname[pStack->MinorFunction] : "unknown"));
152	#endif
153	switch (pStack->MinorFunction)
154	{
155	case IRP_MN_START_DEVICE:
156	{
157	rc = sendIrpSynchronously(pDevExt->nextLowerDriver, pIrp, TRUE);
158
159	if (NT_SUCCESS(rc) && NT_SUCCESS(pIrp->IoStatus.Status))
160	{
161	dprintf(("VBoxGuest::START_DEVICE: pStack->Parameters.StartDevice.AllocatedResources = %p\n", pStack->Parameters.StartDevice.AllocatedResources));
162
163	if (!pStack->Parameters.StartDevice.AllocatedResources)
164	{
165	dprintf(("VBoxGuest::START_DEVICE: no resources, pDevExt = %p, nextLowerDriver = %p!!!\n", pDevExt, pDevExt? pDevExt->nextLowerDriver: NULL));
166	rc = STATUS_UNSUCCESSFUL;
167	}
168	else
169	{
170	showDeviceResources(&pStack->Parameters.StartDevice.AllocatedResources->List[0].PartialResourceList);
171
172	VBoxScanPCIResourceList(pStack->Parameters.StartDevice.AllocatedResourcesTranslated,
173	pDevExt);
174
175	/** @todo cleanup and merging codepath with NT */
176	int rcVBox;
177	rcVBox = VbglInit (pDevExt->startPortAddress, pDevExt->pVMMDevMemory);
178	if (!VBOX_SUCCESS(rcVBox))
179	{
180	dprintf(("VBoxGuest::START_DEVICE: VbglInit failed. rcVBox = %d\n", rcVBox));
181	rc = STATUS_UNSUCCESSFUL;
182	}
183
184	if (NT_SUCCESS(rc))
185	{
186	rcVBox = VbglGRAlloc ((VMMDevRequestHeader **)&pDevExt->irqAckEvents, sizeof (VMMDevEvents), VMMDevReq_AcknowledgeEvents);
187	if (!VBOX_SUCCESS(rc))
188	{
189	dprintf(("VBoxGuest::START_DEVICE: VbglAlloc failed. rcVBox = %d\n", rcVBox));
190	rc = STATUS_UNSUCCESSFUL;
191	}
192	}
193
194	if (NT_SUCCESS(rc))
195	{
196	// Map physical address of VMMDev memory
197	rc = hlpVBoxMapVMMDevMemory(pDevExt);
198	if (!NT_SUCCESS(rc))
199	{
200	dprintf(("VBoxGuest::START_DEVICE: can't map physical memory, rc = %d\n", rc));
201	}
202	}
203
204	if (NT_SUCCESS(rc))
205	{
206	rc = hlpVBoxReportGuestInfo (pDevExt);
207	if (!NT_SUCCESS(rc))
208	{
209	dprintf(("VBoxGuest::START_DEVICE: could not report information to host, rc = %d\n", rc));
210	}
211	}
212
213	if (NT_SUCCESS(rc))
214	{
215	// register DPC and ISR
216	dprintf(("VBoxGuest::VBoxGuestPnp: initializing DPC...\n"));
217	IoInitializeDpcRequest(pDevExt->deviceObject, VBoxGuestDpcHandler);
218
219	rc = IoConnectInterrupt(&pDevExt->interruptObject, // out: interrupt object
220	(PKSERVICE_ROUTINE)VBoxGuestIsrHandler, // ISR
221	pDevExt, // context
222	NULL, // optional spinlock
223	pDevExt->interruptVector, // interrupt vector
224	(KIRQL)pDevExt->interruptLevel, // interrupt level
225	(KIRQL)pDevExt->interruptLevel, // interrupt level
226	pDevExt->interruptMode, // LevelSensitive or Latched
227	TRUE, // shareable interrupt
228	pDevExt->interruptAffinity, // CPU affinity
229	FALSE); // don't save FPU stack
230	if (!NT_SUCCESS(rc))
231	{
232	dprintf(("VBoxGuest::VBoxGuestPnp: could not connect interrupt: rc = 0x%x\n", rc));
233	}
234	}
235	}
236	}
237	if (NT_SUCCESS(rc))
238	{
239	createThreads(pDevExt);
240
241	// initialize the event notification semaphore
242	KeInitializeEvent(&pDevExt->keventNotification, NotificationEvent, FALSE);
243
244	// ready to rumble!
245	dprintf(("VBoxGuest::VBoxGuestPnp: device is ready!\n"));
246	pDevExt->devState = WORKING;
247	} else
248	{
249	dprintf(("VBoxGuest::VBoxGuestPnp: error: rc = 0x%x\n", rc));
250
251	// need to unmap memory in case of errors
252	hlpVBoxUnmapVMMDevMemory (pDevExt);
253	}
254	pIrp->IoStatus.Status = rc;
255	pIrp->IoStatus.Information = 0;
256	IoCompleteRequest(pIrp, IO_NO_INCREMENT);
257	break;
258	}
259
260	case IRP_MN_QUERY_REMOVE_DEVICE:
261	{
262	#ifdef VBOX_REBOOT_ON_UNINSTALL
263	/* The device can not be removed without a reboot. */
264	if (pDevExt->devState == WORKING)
265	{
266	pDevExt->devState = PENDINGREMOVE;
267	}
268	pIrp->IoStatus.Status = STATUS_UNSUCCESSFUL;
269	pIrp->IoStatus.Information = 0;
270	IoCompleteRequest(pIrp, IO_NO_INCREMENT);
271	rc = STATUS_UNSUCCESSFUL;
272
273	dprintf(("VBoxGuest::VBoxGuestPnp: refuse with rc = %p\n", pIrp->IoStatus.Status));
274	#else
275	pIrp->IoStatus.Status = STATUS_SUCCESS;
276	if (pDevExt->devState == WORKING)
277	{
278	pDevExt->devState = PENDINGREMOVE;
279	}
280	IoSkipCurrentIrpStackLocation(pIrp);
281	rc = IoCallDriver(pDevExt->nextLowerDriver, pIrp);
282	#endif /* VBOX_REBOOT_ON_UNINSTALL */
283	break;
284	}
285
286	case IRP_MN_REMOVE_DEVICE:
287	{
288	/* @todo merge Remove and Stop, make a helper for common actions */
289	pIrp->IoStatus.Status = STATUS_SUCCESS;
290
291	unreserveHypervisorMemory(pDevExt);
292
293	if (pDevExt->workerThread)
294	{
295	dprintf(("VBoxGuest::VBoxGuestPnp: waiting for the worker thread to terminate...\n"));
296	pDevExt->stopThread = TRUE;
297	KeSetEvent(&pDevExt->workerThreadRequest, 0, FALSE);
298	KeWaitForSingleObject(pDevExt->workerThread,
299	Executive, KernelMode, FALSE, NULL);
300	dprintf(("VBoxGuest::VBoxGuestPnp: returned from KeWaitForSingleObject for worker thread\n"));
301	}
302
303	if (pDevExt->idleThread)
304	{
305	dprintf(("VBoxGuest::VBoxGuestPnp: waiting for the idle thread to terminate...\n"));
306	pDevExt->stopThread = TRUE;
307	KeWaitForSingleObject(pDevExt->idleThread,
308	Executive, KernelMode, FALSE, NULL);
309	dprintf(("VBoxGuest::VBoxGuestPnp: returned from KeWaitForSingleObject for idle thread\n"));
310	}
311
312	VbglTerminate ();
313
314	// according to MSDN we have to unmap previously mapped memory
315	hlpVBoxUnmapVMMDevMemory (pDevExt);
316
317	if (pDevExt->nextLowerDriver != NULL)
318	{
319	IoDetachDevice(pDevExt->nextLowerDriver);
320	}
321	UNICODE_STRING win32Name;
322	RtlInitUnicodeString(&win32Name, VBOXGUEST_DEVICE_NAME_DOS);
323	IoDeleteSymbolicLink(&win32Name);
324	IoDeleteDevice(pDevObj);
325	pDevExt->devState = REMOVED;
326	IoSkipCurrentIrpStackLocation(pIrp);
327	rc = IoCallDriver(pDevExt->nextLowerDriver, pIrp);
328	break;
329	}
330
331	case IRP_MN_QUERY_STOP_DEVICE:
332	{
333	#ifdef VBOX_REBOOT_ON_UNINSTALL
334	dprintf(("VBoxGuest::VBoxGuestPnp: refuse\n"));
335	/* The device can not be stopped without a reboot. */
336	if (pDevExt->devState == WORKING)
337	{
338	pDevExt->devState = PENDINGSTOP;
339	}
340	pIrp->IoStatus.Status = STATUS_UNSUCCESSFUL;
341	IoCompleteRequest(pIrp, IO_NO_INCREMENT);
342	#else
343	pIrp->IoStatus.Status = STATUS_SUCCESS;
344	if (pDevExt->devState == WORKING)
345	{
346	pDevExt->devState = PENDINGSTOP;
347	}
348	IoSkipCurrentIrpStackLocation(pIrp);
349	rc = IoCallDriver(pDevExt->nextLowerDriver, pIrp);
350	#endif /* VBOX_REBOOT_ON_UNINSTALL */
351	break;
352	}
353
354	case IRP_MN_STOP_DEVICE:
355	{
356	pIrp->IoStatus.Status = STATUS_SUCCESS;
357	if (pDevExt->devState == PENDINGSTOP)
358	{
359	VbglTerminate ();
360
361	// according to MSDN we have to unmap previously mapped memory
362	hlpVBoxUnmapVMMDevMemory (pDevExt);
363
364	pDevExt->devState = STOPPED;
365	dprintf(("VBoxGuest::VBoxGuestPnp: device has been disabled\n"));
366	} else
367	{
368	dprintf(("VBoxGuest::VBoxGuestPnp: devState not PENDINGSTOP but %d\n", pDevExt->devState));
369	}
370	IoSkipCurrentIrpStackLocation(pIrp);
371	rc = IoCallDriver(pDevExt->nextLowerDriver, pIrp);
372	break;
373	}
374
375	default:
376	{
377	IoSkipCurrentIrpStackLocation(pIrp);
378	rc = IoCallDriver(pDevExt->nextLowerDriver, pIrp);
379	}
380
381	}
382	return rc;
383	}
384
385
386	/**
387	* Debug helper to dump a device resource list.
388	*
389	* @param pResourceList list of device resources.
390	*/
391	static VOID showDeviceResources(PCM_PARTIAL_RESOURCE_LIST pResourceList)
392	{
393	#ifdef LOG_ENABLED
394	PCM_PARTIAL_RESOURCE_DESCRIPTOR resource = pResourceList->PartialDescriptors;
395	ULONG nres = pResourceList->Count;
396	ULONG i;
397
398	for (i = 0; i < nres; ++i, ++resource)
399	{
400	ULONG type = resource->Type;
401
402	static char* name[] =
403	{
404	"CmResourceTypeNull",
405	"CmResourceTypePort",
406	"CmResourceTypeInterrupt",
407	"CmResourceTypeMemory",
408	"CmResourceTypeDma",
409	"CmResourceTypeDeviceSpecific",
410	"CmResourceTypeBusNumber",
411	"CmResourceTypeDevicePrivate",
412	"CmResourceTypeAssignedResource",
413	"CmResourceTypeSubAllocateFrom",
414	};
415
416	dprintf(("VBoxGuest::showDeviceResources: type %s", type < (sizeof(name)/sizeof(name[0])) ? name[type] : "unknown"));
417
418	switch (type)
419	{
420	case CmResourceTypePort:
421	case CmResourceTypeMemory:
422	dprintf(("VBoxGuest::showDeviceResources: start %8X%8.8lX length %X\n",
423	resource->u.Port.Start.HighPart, resource->u.Port.Start.LowPart,
424	resource->u.Port.Length));
425	break;
426
427	case CmResourceTypeInterrupt:
428	dprintf(("VBoxGuest::showDeviceResources: level %X, vector %X, affinity %X\n",
429	resource->u.Interrupt.Level, resource->u.Interrupt.Vector,
430	resource->u.Interrupt.Affinity));
431	break;
432
433	case CmResourceTypeDma:
434	dprintf(("VBoxGuest::showDeviceResources: channel %d, port %X\n",
435	resource->u.Dma.Channel, resource->u.Dma.Port));
436	break;
437
438	default:
439	dprintf(("\n"));
440	break;
441	}
442	}
443	#endif
444	}
445
446	/**
447	* Handle the power completion event.
448	*
449	* @returns NT status code
450	* @param devObj targetted device object
451	* @param irp IO request packet
452	* @param context context value passed to IoSetCompletionRoutine in VBoxGuestPower
453	*/
454	NTSTATUS VBoxGuestPowerComplete(IN PDEVICE_OBJECT devObj,
455	IN PIRP irp, IN PVOID context)
456	{
457	PIO_STACK_LOCATION irpSp;
458	PVBOXGUESTDEVEXT devExt = (PVBOXGUESTDEVEXT)context;
459
460	ASSERT(devExt);
461	ASSERT(devExt->signature == DEVICE_EXTENSION_SIGNATURE);
462
463	irpSp = IoGetCurrentIrpStackLocation(irp);
464	ASSERT(irpSp->MajorFunction == IRP_MJ_POWER);
465
466	if (NT_SUCCESS(irp->IoStatus.Status))
467	{
468	switch (irpSp->MinorFunction)
469	{
470	case IRP_MN_SET_POWER:
471
472	switch (irpSp->Parameters.Power.Type)
473	{
474	case DevicePowerState:
475	switch (irpSp->Parameters.Power.State.DeviceState)
476	{
477	case PowerDeviceD0:
478	break;
479	}
480	break;
481	}
482	break;
483	}
484	}
485
486	return STATUS_SUCCESS;
487	}
488
489
490	/**
491	* Handle the Power requests.
492	*
493	* @returns NT status code
494	* @param pDevObj device object
495	* @param pIrp IRP
496	*/
497	NTSTATUS VBoxGuestPower(PDEVICE_OBJECT pDevObj, PIRP pIrp)
498	{
499	PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
500	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
501	POWER_STATE_TYPE powerType;
502	POWER_STATE powerState;
503	POWER_ACTION powerAction;
504
505	dprintf(("VBoxGuest::VBoxGuestPower\n"));
506
507	powerType = pStack->Parameters.Power.Type;
508	powerAction = pStack->Parameters.Power.ShutdownType;
509	powerState = pStack->Parameters.Power.State;
510
511	switch (pStack->MinorFunction)
512	{
513	case IRP_MN_SET_POWER:
514	{
515	dprintf(("VBoxGuest::VBoxGuestPower: IRP_MN_SET_POWER\n"));
516	switch (powerType)
517	{
518	case SystemPowerState:
519	{
520	dprintf(("VBoxGuest::VBoxGuestPower: SystemPowerState\n"));
521	switch (powerAction)
522	{
523	case PowerActionShutdownReset:
524	{
525	dprintf(("VBoxGuest::VBoxGuestPower: power action reset!\n"));
526	/* tell the VMM that we no longer support mouse pointer integration */
527
528	VMMDevReqMouseStatus *req = NULL;
529
530	int rc = VbglGRAlloc ((VMMDevRequestHeader **)&req, sizeof (VMMDevReqMouseStatus), VMMDevReq_SetMouseStatus);
531
532	if (VBOX_SUCCESS(rc))
533	{
534	req->mouseFeatures = 0;
535	req->pointerXPos = 0;
536	req->pointerYPos = 0;
537
538	rc = VbglGRPerform (&req->header);
539
540	if (VBOX_FAILURE(rc) \|\| VBOX_FAILURE(req->header.rc))
541	{
542	dprintf(("VBoxGuest::PowerStateRequest: error communicating new power status to VMMDev."
543	"rc = %d, VMMDev rc = %Vrc\n", rc, req->header.rc));
544	}
545
546	VbglGRFree (&req->header);
547	}
548	break;
549	}
550
551	case PowerActionShutdown:
552	case PowerActionShutdownOff:
553	{
554	dprintf(("VBoxGuest::VBoxGuestPower: power action shutdown!\n"));
555	if (powerState.SystemState >= PowerSystemShutdown)
556	{
557	dprintf(("VBoxGuest::VBoxGuestPower: Telling the VMMDev to close the VM...\n"));
558	VMMDevPowerStateRequest *req = NULL;
559
560	int rc = VbglGRAlloc ((VMMDevRequestHeader **)&req, sizeof (VMMDevPowerStateRequest), VMMDevReq_SetPowerStatus);
561
562	if (VBOX_SUCCESS(rc))
563	{
564	req->powerState = VMMDevPowerState_PowerOff;
565
566	rc = VbglGRPerform (&req->header);
567
568	if (VBOX_FAILURE(rc) \|\| VBOX_FAILURE(req->header.rc))
569	{
570	dprintf(("VBoxGuest::PowerStateRequest: error communicating new power status to VMMDev."
571	"rc = %d, VMMDev rc = %Vrc\n", rc, req->header.rc));
572	}
573
574	VbglGRFree (&req->header);
575	}
576	}
577	break;
578	}
579	}
580	break;
581	}
582	default:
583	break;
584	}
585	break;
586	}
587	default:
588	break;
589	}
590
591	/*
592	* Whether we are completing or relaying this power IRP,
593	* we must call PoStartNextPowerIrp.
594	*/
595	PoStartNextPowerIrp(pIrp);
596
597	/*
598	* Send the IRP down the driver stack,
599	* using PoCallDriver (not IoCallDriver, as for non-power irps).
600	*/
601	IoCopyCurrentIrpStackLocationToNext(pIrp);
602	IoSetCompletionRoutine(pIrp,
603	VBoxGuestPowerComplete,
604	(PVOID)pDevExt,
605	TRUE,
606	TRUE,
607	TRUE);
608	return PoCallDriver(pDevExt->nextLowerDriver, pIrp);
609	}

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source: vbox/trunk/src/VBox/Additions/WINNT/VBoxGuest/VBoxGuestPnP.cpp@ 1176

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