VBoxGuest-win.cpp@ 42738

Last change on this file since 42738 was 41972, checked in by vboxsync, 12 years ago
VBoxGuest,VBoxControl: embedded DPC latency measurement for Windows (disabled).
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1	/** @file
2	*
3	* VBoxGuest - Windows specifics.
4	*
5	* Copyright (C) 2010 Oracle Corporation
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 (GPL) as published by the Free Software
11	* Foundation, in version 2 as it comes in the "COPYING" file of the
12	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
13	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
14	*/
15
16	/*******************************************************************************
17	* Header Files *
18	*******************************************************************************/
19	#define LOG_GROUP LOG_GROUP_SUP_DRV
20	#include "VBoxGuest-win.h"
21	#include "VBoxGuestInternal.h"
22
23	#include <iprt/asm.h>
24	#include <iprt/asm-amd64-x86.h>
25
26	#include <VBox/log.h>
27	#include <VBox/VBoxGuestLib.h>
28
29	/*
30	* XP DDK #defines ExFreePool to ExFreePoolWithTag. The latter does not exist
31	* on NT4, so... The same for ExAllocatePool.
32	*/
33	#ifdef TARGET_NT4
34	# undef ExAllocatePool
35	# undef ExFreePool
36	#endif
37
38	/*******************************************************************************
39	* Internal Functions *
40	*******************************************************************************/
41	RT_C_DECLS_BEGIN
42	static NTSTATUS vboxguestwinAddDevice(PDRIVER_OBJECT pDrvObj, PDEVICE_OBJECT pDevObj);
43	static void vboxguestwinUnload(PDRIVER_OBJECT pDrvObj);
44	static NTSTATUS vboxguestwinCreate(PDEVICE_OBJECT pDevObj, PIRP pIrp);
45	static NTSTATUS vboxguestwinClose(PDEVICE_OBJECT pDevObj, PIRP pIrp);
46	static NTSTATUS vboxguestwinIOCtl(PDEVICE_OBJECT pDevObj, PIRP pIrp);
47	static NTSTATUS vboxguestwinInternalIOCtl(PDEVICE_OBJECT pDevObj, PIRP pIrp);
48	static NTSTATUS vboxguestwinRegistryReadDWORD(ULONG ulRoot, PCWSTR pwszPath, PWSTR pwszName, PULONG puValue);
49	static NTSTATUS vboxguestwinSystemControl(PDEVICE_OBJECT pDevObj, PIRP pIrp);
50	static NTSTATUS vboxguestwinShutdown(PDEVICE_OBJECT pDevObj, PIRP pIrp);
51	static NTSTATUS vboxguestwinNotSupportedStub(PDEVICE_OBJECT pDevObj, PIRP pIrp);
52	#ifdef DEBUG
53	static void vboxguestwinDoTests(void);
54	#endif
55	RT_C_DECLS_END
56
57
58	/*******************************************************************************
59	* Exported Functions *
60	*******************************************************************************/
61	RT_C_DECLS_BEGIN
62	ULONG DriverEntry(PDRIVER_OBJECT pDrvObj, PUNICODE_STRING pRegPath);
63	RT_C_DECLS_END
64
65	#ifdef ALLOC_PRAGMA
66	#pragma alloc_text (INIT, DriverEntry)
67	#pragma alloc_text (PAGE, vboxguestwinAddDevice)
68	#pragma alloc_text (PAGE, vboxguestwinUnload)
69	#pragma alloc_text (PAGE, vboxguestwinCreate)
70	#pragma alloc_text (PAGE, vboxguestwinClose)
71	#pragma alloc_text (PAGE, vboxguestwinIOCtl)
72	#pragma alloc_text (PAGE, vboxguestwinShutdown)
73	#pragma alloc_text (PAGE, vboxguestwinNotSupportedStub)
74	#pragma alloc_text (PAGE, vboxguestwinScanPCIResourceList)
75	#endif
76
77	/** The detected Windows version. */
78	winVersion_t g_winVersion;
79
80	/**
81	* Driver entry point.
82	*
83	* @returns appropriate status code.
84	* @param pDrvObj Pointer to driver object.
85	* @param pRegPath Registry base path.
86	*/
87	ULONG DriverEntry(PDRIVER_OBJECT pDrvObj, PUNICODE_STRING pRegPath)
88	{
89	NTSTATUS rc = STATUS_SUCCESS;
90
91	Log(("VBoxGuest::DriverEntry. Driver built: %s %s\n", __DATE__, __TIME__));
92
93	ULONG majorVersion;
94	ULONG minorVersion;
95	ULONG buildNumber;
96	BOOLEAN bCheckedBuild = PsGetVersion(&majorVersion, &minorVersion, &buildNumber, NULL);
97	Log(("VBoxGuest::DriverEntry: Running on Windows NT version %d.%d, build %d\n", majorVersion, minorVersion, buildNumber));
98	if (bCheckedBuild)
99	Log(("VBoxGuest::DriverEntry: Running on a Windows checked build (debug)!\n"));
100	#ifdef DEBUG
101	vboxguestwinDoTests();
102	#endif
103	switch (majorVersion)
104	{
105	case 6: /* Windows Vista or Windows 7 (based on minor ver) */
106	switch (minorVersion)
107	{
108	case 0: /* Note: Also could be Windows 2008 Server! */
109	g_winVersion = WINVISTA;
110	break;
111	case 1: /* Note: Also could be Windows 2008 Server R2! */
112	g_winVersion = WIN7;
113	break;
114	case 2:
115	g_winVersion = WIN8;
116	break;
117	default:
118	Log(("VBoxGuest::DriverEntry: Unknown version of Windows (%u.%u), refusing!\n",
119	majorVersion, minorVersion));
120	rc = STATUS_DRIVER_UNABLE_TO_LOAD;
121	break;
122	}
123	break;
124	case 5:
125	switch (minorVersion)
126	{
127	case 2:
128	g_winVersion = WIN2K3;
129	break;
130	case 1:
131	g_winVersion = WINXP;
132	break;
133	case 0:
134	g_winVersion = WIN2K;
135	break;
136	default:
137	Log(("VBoxGuest::DriverEntry: Unknown version of Windows (%u.%u), refusing!\n",
138	majorVersion, minorVersion));
139	rc = STATUS_DRIVER_UNABLE_TO_LOAD;
140	}
141	break;
142	case 4:
143	g_winVersion = WINNT4;
144	break;
145	default:
146	Log(("VBoxGuest::DriverEntry: At least Windows NT4 required!\n"));
147	rc = STATUS_DRIVER_UNABLE_TO_LOAD;
148	}
149
150	if (NT_SUCCESS(rc))
151	{
152	/*
153	* Setup the driver entry points in pDrvObj.
154	*/
155	pDrvObj->DriverUnload = vboxguestwinUnload;
156	pDrvObj->MajorFunction[IRP_MJ_CREATE] = vboxguestwinCreate;
157	pDrvObj->MajorFunction[IRP_MJ_CLOSE] = vboxguestwinClose;
158	pDrvObj->MajorFunction[IRP_MJ_DEVICE_CONTROL] = vboxguestwinIOCtl;
159	pDrvObj->MajorFunction[IRP_MJ_INTERNAL_DEVICE_CONTROL] = vboxguestwinInternalIOCtl;
160	pDrvObj->MajorFunction[IRP_MJ_SHUTDOWN] = vboxguestwinShutdown;
161	pDrvObj->MajorFunction[IRP_MJ_READ] = vboxguestwinNotSupportedStub;
162	pDrvObj->MajorFunction[IRP_MJ_WRITE] = vboxguestwinNotSupportedStub;
163	#ifdef TARGET_NT4
164	rc = vboxguestwinnt4CreateDevice(pDrvObj, NULL /* pDevObj */, pRegPath);
165	#else
166	pDrvObj->MajorFunction[IRP_MJ_PNP] = vboxguestwinPnP;
167	pDrvObj->MajorFunction[IRP_MJ_POWER] = vboxguestwinPower;
168	pDrvObj->MajorFunction[IRP_MJ_SYSTEM_CONTROL] = vboxguestwinSystemControl;
169	pDrvObj->DriverExtension->AddDevice = (PDRIVER_ADD_DEVICE)vboxguestwinAddDevice;
170	#endif
171	}
172
173	Log(("VBoxGuest::DriverEntry returning %#x\n", rc));
174	return rc;
175	}
176
177
178	#ifndef TARGET_NT4
179	/**
180	* Handle request from the Plug & Play subsystem.
181	*
182	* @returns NT status code
183	* @param pDrvObj Driver object
184	* @param pDevObj Device object
185	*/
186	static NTSTATUS vboxguestwinAddDevice(PDRIVER_OBJECT pDrvObj, PDEVICE_OBJECT pDevObj)
187	{
188	NTSTATUS rc;
189	Log(("VBoxGuest::vboxguestwinGuestAddDevice\n"));
190
191	/*
192	* Create device.
193	*/
194	PDEVICE_OBJECT pDeviceObject = NULL;
195	PVBOXGUESTDEVEXT pDevExt = NULL;
196	UNICODE_STRING devName;
197	UNICODE_STRING win32Name;
198	RtlInitUnicodeString(&devName, VBOXGUEST_DEVICE_NAME_NT);
199	rc = IoCreateDevice(pDrvObj, sizeof(VBOXGUESTDEVEXT), &devName, FILE_DEVICE_UNKNOWN, 0, FALSE, &pDeviceObject);
200	if (NT_SUCCESS(rc))
201	{
202	/*
203	* Create symbolic link (DOS devices).
204	*/
205	RtlInitUnicodeString(&win32Name, VBOXGUEST_DEVICE_NAME_DOS);
206	rc = IoCreateSymbolicLink(&win32Name, &devName);
207	if (NT_SUCCESS(rc))
208	{
209	/*
210	* Setup the device extension.
211	*/
212	pDevExt = (PVBOXGUESTDEVEXT)pDeviceObject->DeviceExtension;
213	RtlZeroMemory(pDevExt, sizeof(VBOXGUESTDEVEXT));
214
215	KeInitializeSpinLock(&pDevExt->win.s.MouseEventAccessLock);
216
217	pDevExt->win.s.pDeviceObject = pDeviceObject;
218	pDevExt->win.s.prevDevState = STOPPED;
219	pDevExt->win.s.devState = STOPPED;
220
221	pDevExt->win.s.pNextLowerDriver = IoAttachDeviceToDeviceStack(pDeviceObject, pDevObj);
222	if (pDevExt->win.s.pNextLowerDriver == NULL)
223	{
224	Log(("VBoxGuest::vboxguestwinGuestAddDevice: IoAttachDeviceToDeviceStack did not give a nextLowerDriver!\n"));
225	rc = STATUS_DEVICE_NOT_CONNECTED;
226	}
227	}
228	else
229	Log(("VBoxGuest::vboxguestwinGuestAddDevice: IoCreateSymbolicLink failed with rc=%#x!\n", rc));
230	}
231	else
232	Log(("VBoxGuest::vboxguestwinGuestAddDevice: IoCreateDevice failed with rc=%#x!\n", rc));
233
234	if (NT_SUCCESS(rc))
235	{
236	/*
237	* If we reached this point we're fine with the basic driver setup,
238	* so continue to init our own things.
239	*/
240	#ifdef VBOX_WITH_GUEST_BUGCHECK_DETECTION
241	vboxguestwinBugCheckCallback(pDevExt); /* Ignore failure! */
242	#endif
243	/* VBoxGuestPower is pageable; ensure we are not called at elevated IRQL */
244	pDeviceObject->Flags \|= DO_POWER_PAGABLE;
245
246	/* Driver is ready now. */
247	pDeviceObject->Flags &= ~DO_DEVICE_INITIALIZING;
248	}
249
250	/* Cleanup on error. */
251	if (NT_ERROR(rc))
252	{
253	if (pDevExt)
254	{
255	if (pDevExt->win.s.pNextLowerDriver)
256	IoDetachDevice(pDevExt->win.s.pNextLowerDriver);
257	}
258	IoDeleteSymbolicLink(&win32Name);
259	if (pDeviceObject)
260	IoDeleteDevice(pDeviceObject);
261	}
262
263	Log(("VBoxGuest::vboxguestwinGuestAddDevice: returning with rc = 0x%x\n", rc));
264	return rc;
265	}
266	#endif
267
268
269	/**
270	* Debug helper to dump a device resource list.
271	*
272	* @param pResourceList list of device resources.
273	*/
274	static void vboxguestwinShowDeviceResources(PCM_PARTIAL_RESOURCE_LIST pResourceList)
275	{
276	#ifdef LOG_ENABLED
277	PCM_PARTIAL_RESOURCE_DESCRIPTOR resource = pResourceList->PartialDescriptors;
278	ULONG nres = pResourceList->Count;
279	ULONG i;
280
281	for (i = 0; i < nres; ++i, ++resource)
282	{
283	ULONG uType = resource->Type;
284	static char* aszName[] =
285	{
286	"CmResourceTypeNull",
287	"CmResourceTypePort",
288	"CmResourceTypeInterrupt",
289	"CmResourceTypeMemory",
290	"CmResourceTypeDma",
291	"CmResourceTypeDeviceSpecific",
292	"CmResourceTypeBusNumber",
293	"CmResourceTypeDevicePrivate",
294	"CmResourceTypeAssignedResource",
295	"CmResourceTypeSubAllocateFrom",
296	};
297
298	Log(("VBoxGuest::vboxguestwinShowDeviceResources: Type %s",
299	uType < (sizeof(aszName) / sizeof(aszName[0]))
300	? aszName[uType] : "Unknown"));
301
302	switch (uType)
303	{
304	case CmResourceTypePort:
305	case CmResourceTypeMemory:
306	Log(("VBoxGuest::vboxguestwinShowDeviceResources: Start %8X%8.8lX length %X\n",
307	resource->u.Port.Start.HighPart, resource->u.Port.Start.LowPart,
308	resource->u.Port.Length));
309	break;
310
311	case CmResourceTypeInterrupt:
312	Log(("VBoxGuest::vboxguestwinShowDeviceResources: Level %X, Vector %X, Affinity %X\n",
313	resource->u.Interrupt.Level, resource->u.Interrupt.Vector,
314	resource->u.Interrupt.Affinity));
315	break;
316
317	case CmResourceTypeDma:
318	Log(("VBoxGuest::vboxguestwinShowDeviceResources: Channel %d, Port %X\n",
319	resource->u.Dma.Channel, resource->u.Dma.Port));
320	break;
321
322	default:
323	Log(("\n"));
324	break;
325	}
326	}
327	#endif
328	}
329
330
331	/**
332	* Global initialisation stuff (PnP + NT4 legacy).
333	*
334	* @param pDevObj Device object.
335	* @param pIrp Request packet.
336	*/
337	#ifndef TARGET_NT4
338	NTSTATUS vboxguestwinInit(PDEVICE_OBJECT pDevObj, PIRP pIrp)
339	#else
340	NTSTATUS vboxguestwinInit(PDRIVER_OBJECT pDrvObj, PDEVICE_OBJECT pDevObj, PUNICODE_STRING pRegPath)
341	#endif
342	{
343	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
344	#ifndef TARGET_NT4
345	PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
346	#endif
347
348	Log(("VBoxGuest::vboxguestwinInit\n"));
349
350	int rc = STATUS_SUCCESS;
351	#ifdef TARGET_NT4
352	/*
353	* Let's have a look at what our PCI adapter offers.
354	*/
355	Log(("VBoxGuest::vboxguestwinInit: Starting to scan PCI resources of VBoxGuest ...\n"));
356
357	/* Assign the PCI resources. */
358	PCM_RESOURCE_LIST pResourceList = NULL;
359	UNICODE_STRING classNameString;
360	RtlInitUnicodeString(&classNameString, L"VBoxGuestAdapter");
361	rc = HalAssignSlotResources(pRegPath, &classNameString,
362	pDrvObj, pDevObj,
363	PCIBus, pDevExt->win.s.busNumber, pDevExt->win.s.slotNumber,
364	&pResourceList);
365	if (pResourceList && pResourceList->Count > 0)
366	vboxguestwinShowDeviceResources(&pResourceList->List[0].PartialResourceList);
367	if (NT_SUCCESS(rc))
368	rc = vboxguestwinScanPCIResourceList(pResourceList, pDevExt);
369	#else
370	if (pStack->Parameters.StartDevice.AllocatedResources->Count > 0)
371	vboxguestwinShowDeviceResources(&pStack->Parameters.StartDevice.AllocatedResources->List[0].PartialResourceList);
372	if (NT_SUCCESS(rc))
373	rc = vboxguestwinScanPCIResourceList(pStack->Parameters.StartDevice.AllocatedResourcesTranslated,
374	pDevExt);
375	#endif
376	if (NT_SUCCESS(rc))
377	{
378	/*
379	* Map physical address of VMMDev memory into MMIO region
380	* and init the common device extension bits.
381	*/
382	void *pvMMIOBase = NULL;
383	uint32_t cbMMIO = 0;
384	rc = vboxguestwinMapVMMDevMemory(pDevExt,
385	pDevExt->win.s.vmmDevPhysMemoryAddress,
386	pDevExt->win.s.vmmDevPhysMemoryLength,
387	&pvMMIOBase,
388	&cbMMIO);
389	if (NT_SUCCESS(rc))
390	{
391	pDevExt->pVMMDevMemory = (VMMDevMemory *)pvMMIOBase;
392
393	Log(("VBoxGuest::vboxguestwinInit: pvMMIOBase = 0x%p, pDevExt = 0x%p, pDevExt->pVMMDevMemory = 0x%p\n",
394	pvMMIOBase, pDevExt, pDevExt ? pDevExt->pVMMDevMemory : NULL));
395
396	int vrc = VBoxGuestInitDevExt(pDevExt,
397	pDevExt->IOPortBase,
398	pvMMIOBase, cbMMIO,
399	vboxguestwinVersionToOSType(g_winVersion),
400	VMMDEV_EVENT_MOUSE_POSITION_CHANGED);
401	if (RT_FAILURE(vrc))
402	{
403	Log(("VBoxGuest::vboxguestwinInit: Could not init device extension, rc = %Rrc!\n", vrc));
404	rc = STATUS_DEVICE_CONFIGURATION_ERROR;
405	}
406	}
407	else
408	Log(("VBoxGuest::vboxguestwinInit: Could not map physical address of VMMDev, rc = 0x%x!\n", rc));
409	}
410
411	if (NT_SUCCESS(rc))
412	{
413	int vrc = VbglGRAlloc((VMMDevRequestHeader **)&pDevExt->win.s.pPowerStateRequest,
414	sizeof (VMMDevPowerStateRequest), VMMDevReq_SetPowerStatus);
415	if (RT_FAILURE(vrc))
416	{
417	Log(("VBoxGuest::vboxguestwinInit: Alloc for pPowerStateRequest failed, rc = %Rrc\n", vrc));
418	rc = STATUS_UNSUCCESSFUL;
419	}
420	}
421
422	if (NT_SUCCESS(rc))
423	{
424	/*
425	* Register DPC and ISR.
426	*/
427	Log(("VBoxGuest::vboxguestwinInit: Initializing DPC/ISR ...\n"));
428
429	IoInitializeDpcRequest(pDevExt->win.s.pDeviceObject, vboxguestwinDpcHandler);
430	#ifdef TARGET_NT4
431	ULONG uInterruptVector;
432	KIRQL irqLevel;
433	/* Get an interrupt vector. */
434	/* Only proceed if the device provides an interrupt. */
435	if ( pDevExt->win.s.interruptLevel
436	\|\| pDevExt->win.s.interruptVector)
437	{
438	Log(("VBoxGuest::vboxguestwinInit: Getting interrupt vector (HAL): Bus: %u, IRQL: %u, Vector: %u\n",
439	pDevExt->win.s.busNumber, pDevExt->win.s.interruptLevel, pDevExt->win.s.interruptVector));
440
441	uInterruptVector = HalGetInterruptVector(PCIBus,
442	pDevExt->win.s.busNumber,
443	pDevExt->win.s.interruptLevel,
444	pDevExt->win.s.interruptVector,
445	&irqLevel,
446	&pDevExt->win.s.interruptAffinity);
447	Log(("VBoxGuest::vboxguestwinInit: HalGetInterruptVector returns vector %u\n", uInterruptVector));
448	if (uInterruptVector == 0)
449	Log(("VBoxGuest::vboxguestwinInit: No interrupt vector found!\n"));
450	}
451	else
452	Log(("VBoxGuest::vboxguestwinInit: Device does not provide an interrupt!\n"));
453	#endif
454	if (pDevExt->win.s.interruptVector)
455	{
456	Log(("VBoxGuest::vboxguestwinInit: Connecting interrupt ...\n"));
457
458	rc = IoConnectInterrupt(&pDevExt->win.s.pInterruptObject, /* Out: interrupt object. */
459	(PKSERVICE_ROUTINE)vboxguestwinIsrHandler, /* Our ISR handler. */
460	pDevExt, /* Device context. */
461	NULL, /* Optional spinlock. */
462	#ifdef TARGET_NT4
463	uInterruptVector, /* Interrupt vector. */
464	irqLevel, /* Interrupt level. */
465	irqLevel, /* Interrupt level. */
466	#else
467	pDevExt->win.s.interruptVector, /* Interrupt vector. */
468	(KIRQL)pDevExt->win.s.interruptLevel, /* Interrupt level. */
469	(KIRQL)pDevExt->win.s.interruptLevel, /* Interrupt level. */
470	#endif
471	pDevExt->win.s.interruptMode, /* LevelSensitive or Latched. */
472	TRUE, /* Shareable interrupt. */
473	pDevExt->win.s.interruptAffinity, /* CPU affinity. */
474	FALSE); /* Don't save FPU stack. */
475	if (NT_ERROR(rc))
476	Log(("VBoxGuest::vboxguestwinInit: Could not connect interrupt, rc = 0x%x\n", rc));
477	}
478	else
479	Log(("VBoxGuest::vboxguestwinInit: No interrupt vector found!\n"));
480	}
481
482
483	#ifdef VBOX_WITH_HGCM
484	Log(("VBoxGuest::vboxguestwinInit: Allocating kernel session data ...\n"));
485	int vrc = VBoxGuestCreateKernelSession(pDevExt, &pDevExt->win.s.pKernelSession);
486	if (RT_FAILURE(vrc))
487	{
488	Log(("VBoxGuest::vboxguestwinInit: Failed to allocated kernel session data! rc = %Rrc\n", rc));
489	rc = STATUS_UNSUCCESSFUL;
490	}
491	#endif
492
493	if (RT_SUCCESS(rc))
494	{
495	ULONG ulValue = 0;
496	NTSTATUS s = vboxguestwinRegistryReadDWORD(RTL_REGISTRY_SERVICES, L"VBoxGuest", L"LoggingEnabled",
497	&ulValue);
498	if (NT_SUCCESS(s))
499	{
500	pDevExt->fLoggingEnabled = ulValue >= 0xFF;
501	if (pDevExt->fLoggingEnabled)
502	Log(("Logging to release log enabled (0x%x)", ulValue));
503	}
504
505	/* Ready to rumble! */
506	Log(("VBoxGuest::vboxguestwinInit: Device is ready!\n"));
507	VBOXGUEST_UPDATE_DEVSTATE(pDevExt, WORKING);
508	}
509	else
510	{
511	pDevExt->win.s.pInterruptObject = NULL;
512	}
513
514	Log(("VBoxGuest::vboxguestwinInit: Returned with rc = 0x%x\n", rc));
515	return rc;
516	}
517
518
519	/**
520	* Cleans up hardware resources.
521	* Do not delete DevExt here.
522	*
523	* @param pDrvObj Driver object.
524	*/
525	NTSTATUS vboxguestwinCleanup(PDEVICE_OBJECT pDevObj)
526	{
527	Log(("VBoxGuest::vboxguestwinCleanup\n"));
528
529	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
530	if (pDevExt)
531	{
532
533	#if 0 /* @todo: test & enable cleaning global session data */
534	#ifdef VBOX_WITH_HGCM
535	if (pDevExt->win.s.pKernelSession)
536	{
537	VBoxGuestCloseSession(pDevExt, pDevExt->win.s.pKernelSession);
538	pDevExt->win.s.pKernelSession = NULL;
539	}
540	#endif
541	#endif
542
543	if (pDevExt->win.s.pInterruptObject)
544	{
545	IoDisconnectInterrupt(pDevExt->win.s.pInterruptObject);
546	pDevExt->win.s.pInterruptObject = NULL;
547	}
548
549	/* @todo: cleanup the rest stuff */
550
551
552	#ifdef VBOX_WITH_GUEST_BUGCHECK_DETECTION
553	hlpDeregisterBugCheckCallback(pDevExt); /* ignore failure! */
554	#endif
555	/* According to MSDN we have to unmap previously mapped memory. */
556	vboxguestwinUnmapVMMDevMemory(pDevExt);
557	}
558	return STATUS_SUCCESS;
559	}
560
561
562	/**
563	* Unload the driver.
564	*
565	* @param pDrvObj Driver object.
566	*/
567	static void vboxguestwinUnload(PDRIVER_OBJECT pDrvObj)
568	{
569	Log(("VBoxGuest::vboxguestwinGuestUnload\n"));
570	#ifdef TARGET_NT4
571	vboxguestwinCleanup(pDrvObj->DeviceObject);
572
573	/* Destroy device extension and clean up everything else. */
574	if (pDrvObj->DeviceObject && pDrvObj->DeviceObject->DeviceExtension)
575	VBoxGuestDeleteDevExt((PVBOXGUESTDEVEXT)pDrvObj->DeviceObject->DeviceExtension);
576
577	/*
578	* I don't think it's possible to unload a driver which processes have
579	* opened, at least we'll blindly assume that here.
580	*/
581	UNICODE_STRING win32Name;
582	RtlInitUnicodeString(&win32Name, VBOXGUEST_DEVICE_NAME_DOS);
583	NTSTATUS rc = IoDeleteSymbolicLink(&win32Name);
584
585	IoDeleteDevice(pDrvObj->DeviceObject);
586	#else /* TARGET_NT4 */
587	/* On a PnP driver this routine will be called after
588	* IRP_MN_REMOVE_DEVICE (where we already did the cleanup),
589	* so don't do anything here (yet). */
590	#endif
591
592	Log(("VBoxGuest::vboxguestwinGuestUnload: returning\n"));
593	}
594
595
596	/**
597	* Create (i.e. Open) file entry point.
598	*
599	* @param pDevObj Device object.
600	* @param pIrp Request packet.
601	*/
602	static NTSTATUS vboxguestwinCreate(PDEVICE_OBJECT pDevObj, PIRP pIrp)
603	{
604	/** @todo AssertPtrReturn(pIrp); */
605	PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
606	/** @todo AssertPtrReturn(pStack); */
607	PFILE_OBJECT pFileObj = pStack->FileObject;
608	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
609	NTSTATUS rc = STATUS_SUCCESS;
610
611	if (pDevExt->win.s.devState != WORKING)
612	{
613	Log(("VBoxGuest::vboxguestwinGuestCreate: device is not working currently: %d!\n",
614	pDevExt->win.s.devState));
615	rc = STATUS_UNSUCCESSFUL;
616	}
617	else if (pStack->Parameters.Create.Options & FILE_DIRECTORY_FILE)
618	{
619	/*
620	* We are not remotely similar to a directory...
621	* (But this is possible.)
622	*/
623	Log(("VBoxGuest::vboxguestwinGuestCreate: Uhm, we're not a directory!\n"));
624	rc = STATUS_NOT_A_DIRECTORY;
625	}
626	else
627	{
628	#ifdef VBOX_WITH_HGCM
629	if (pFileObj)
630	{
631	Log(("VBoxGuest::vboxguestwinGuestCreate: File object type = %d\n",
632	pFileObj->Type));
633
634	int vrc;
635	PVBOXGUESTSESSION pSession;
636	if (pFileObj->Type == 5 /* File Object */)
637	{
638	/*
639	* Create a session object if we have a valid file object. This session object
640	* exists for every R3 process.
641	*/
642	vrc = VBoxGuestCreateUserSession(pDevExt, &pSession);
643	}
644	else
645	{
646	/* ... otherwise we've been called from R0! */
647	vrc = VBoxGuestCreateKernelSession(pDevExt, &pSession);
648	}
649	if (RT_SUCCESS(vrc))
650	pFileObj->FsContext = pSession;
651	}
652	#endif
653	}
654
655	/* Complete the request! */
656	pIrp->IoStatus.Information = 0;
657	pIrp->IoStatus.Status = rc;
658	IoCompleteRequest(pIrp, IO_NO_INCREMENT);
659
660	Log(("VBoxGuest::vboxguestwinGuestCreate: Returning 0x%x\n", rc));
661	return rc;
662	}
663
664
665	/**
666	* Close file entry point.
667	*
668	* @param pDevObj Device object.
669	* @param pIrp Request packet.
670	*/
671	static NTSTATUS vboxguestwinClose(PDEVICE_OBJECT pDevObj, PIRP pIrp)
672	{
673	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
674	PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
675	PFILE_OBJECT pFileObj = pStack->FileObject;
676
677	Log(("VBoxGuest::vboxguestwinGuestClose: pDevExt=0x%p pFileObj=0x%p FsContext=0x%p\n",
678	pDevExt, pFileObj, pFileObj->FsContext));
679
680	#ifdef VBOX_WITH_HGCM
681	/* Close both, R0 and R3 sessions. */
682	PVBOXGUESTSESSION pSession = (PVBOXGUESTSESSION)pFileObj->FsContext;
683	if (pSession)
684	VBoxGuestCloseSession(pDevExt, pSession);
685	#endif
686
687	pFileObj->FsContext = NULL;
688	pIrp->IoStatus.Information = 0;
689	pIrp->IoStatus.Status = STATUS_SUCCESS;
690	IoCompleteRequest(pIrp, IO_NO_INCREMENT);
691
692	return STATUS_SUCCESS;
693	}
694
695
696	/**
697	* Device I/O Control entry point.
698	*
699	* @param pDevObj Device object.
700	* @param pIrp Request packet.
701	*/
702	static NTSTATUS vboxguestwinIOCtl(PDEVICE_OBJECT pDevObj, PIRP pIrp)
703	{
704	NTSTATUS Status = STATUS_SUCCESS;
705	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
706	PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
707	unsigned int uCmd = (unsigned int)pStack->Parameters.DeviceIoControl.IoControlCode;
708
709	char pBuf = (char )pIrp->AssociatedIrp.SystemBuffer; /* All requests are buffered. */
710	size_t cbData = pStack->Parameters.DeviceIoControl.InputBufferLength;
711	unsigned cbOut = 0;
712
713	/* Do we have a file object associated?*/
714	PFILE_OBJECT pFileObj = pStack->FileObject;
715	PVBOXGUESTSESSION pSession = NULL;
716	if (pFileObj) /* ... then we might have a session object as well! */
717	pSession = (PVBOXGUESTSESSION)pFileObj->FsContext;
718
719	Log(("VBoxGuest::vboxguestwinIOCtl: uCmd=%u, pDevExt=0x%p, pSession=0x%p\n",
720	uCmd, pDevExt, pSession));
721
722	/* We don't have a session associated with the file object? So this seems
723	* to be a kernel call then. */
724	/** @todo r=bird: What on earth is this supposed to be? Each kernel session
725	* shall have its own context of course, no hacks, pleeease. */
726	if (pSession == NULL)
727	{
728	Log(("VBoxGuest::vboxguestwinIOCtl: Using kernel session data ...\n"));
729	pSession = pDevExt->win.s.pKernelSession;
730	}
731
732	/*
733	* First process Windows specific stuff which cannot be handled
734	* by the common code used on all other platforms. In the default case
735	* we then finally handle the common cases.
736	*/
737	switch (uCmd)
738	{
739	#ifdef VBOX_WITH_VRDP_SESSION_HANDLING
740	case VBOXGUEST_IOCTL_ENABLE_VRDP_SESSION:
741	{
742	LogRel(("VBoxGuest::vboxguestwinIOCtl: ENABLE_VRDP_SESSION: Currently: %sabled\n",
743	pDevExt->fVRDPEnabled? "en": "dis"));
744	if (!pDevExt->fVRDPEnabled)
745	{
746	KUSER_SHARED_DATA pSharedUserData = (KUSER_SHARED_DATA )KI_USER_SHARED_DATA;
747
748	pDevExt->fVRDPEnabled = true;
749	LogRel(("VBoxGuest::vboxguestwinIOCtl: ENABLE_VRDP_SESSION: Current active console ID: 0x%08X\n",
750	pSharedUserData->ActiveConsoleId));
751	pDevExt->ulOldActiveConsoleId = pSharedUserData->ActiveConsoleId;
752	pSharedUserData->ActiveConsoleId = 2;
753	}
754	break;
755	}
756
757	case VBOXGUEST_IOCTL_DISABLE_VRDP_SESSION:
758	{
759	LogRel(("VBoxGuest::vboxguestwinIOCtl: DISABLE_VRDP_SESSION: Currently: %sabled\n",
760	pDevExt->fVRDPEnabled? "en": "dis"));
761	if (pDevExt->fVRDPEnabled)
762	{
763	KUSER_SHARED_DATA pSharedUserData = (KUSER_SHARED_DATA )KI_USER_SHARED_DATA;
764
765	pDevExt->fVRDPEnabled = false;
766	Log(("VBoxGuest::vboxguestwinIOCtl: DISABLE_VRDP_SESSION: Current active console ID: 0x%08X\n",
767	pSharedUserData->ActiveConsoleId));
768	pSharedUserData->ActiveConsoleId = pDevExt->ulOldActiveConsoleId;
769	pDevExt->ulOldActiveConsoleId = 0;
770	}
771	break;
772	}
773	#else
774	/* Add at least one (bogus) fall through case to shut up MSVC! */
775	case 0:
776	#endif
777	default:
778	{
779	/*
780	* Process the common IOCtls.
781	*/
782	size_t cbDataReturned;
783	int vrc = VBoxGuestCommonIOCtl(uCmd, pDevExt, pSession, pBuf, cbData, &cbDataReturned);
784
785	Log(("VBoxGuest::vboxguestwinGuestDeviceControl: rc=%Rrc, pBuf=0x%p, cbData=%u, cbDataReturned=%u\n",
786	vrc, pBuf, cbData, cbDataReturned));
787
788	if (RT_SUCCESS(vrc))
789	{
790	if (RT_UNLIKELY(cbDataReturned > cbData))
791	{
792	Log(("VBoxGuest::vboxguestwinGuestDeviceControl: Too much output data %u - expected %u!\n", cbDataReturned, cbData));
793	cbDataReturned = cbData;
794	Status = STATUS_BUFFER_TOO_SMALL;
795	}
796	if (cbDataReturned > 0)
797	cbOut = cbDataReturned;
798	}
799	else
800	{
801	if ( vrc == VERR_NOT_SUPPORTED
802	\|\| vrc == VERR_INVALID_PARAMETER)
803	{
804	Status = STATUS_INVALID_PARAMETER;
805	}
806	else
807	Status = STATUS_UNSUCCESSFUL;
808	}
809	break;
810	}
811	}
812
813	pIrp->IoStatus.Status = Status;
814	pIrp->IoStatus.Information = cbOut;
815
816	IoCompleteRequest(pIrp, IO_NO_INCREMENT);
817
818	//Log(("VBoxGuest::vboxguestwinGuestDeviceControl: returned cbOut=%d rc=%#x\n", cbOut, Status));
819	return Status;
820	}
821
822	/**
823	* Internal Device I/O Control entry point.
824	*
825	* We do not want to allow some IOCTLs to be originated from user mode, this is
826	* why we have a different entry point for internal IOCTLs.
827	*
828	* @param pDevObj Device object.
829	* @param pIrp Request packet.
830	*
831	* @todo r=bird: This is no need for this extra function for the purpose of
832	* securing an IOCTL from user space access. VBoxGuestCommonIOCtl
833	* has a way to do this already, see VBOXGUEST_IOCTL_GETVMMDEVPORT.
834	*/
835	static NTSTATUS vboxguestwinInternalIOCtl(PDEVICE_OBJECT pDevObj, PIRP pIrp)
836	{
837	NTSTATUS Status = STATUS_SUCCESS;
838	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
839	PIO_STACK_LOCATION pStack = IoGetCurrentIrpStackLocation(pIrp);
840	unsigned int uCmd = (unsigned int)pStack->Parameters.DeviceIoControl.IoControlCode;
841	bool fProcessed = false;
842	unsigned Info = 0;
843
844	switch (uCmd)
845	{
846	case VBOXGUEST_IOCTL_SET_MOUSE_NOTIFY_CALLBACK:
847	{
848	PVOID pvBuf = pStack->Parameters.Others.Argument1;
849	size_t cbData = (size_t)pStack->Parameters.Others.Argument2;
850	fProcessed = true;
851	if (cbData != sizeof(VBoxGuestMouseSetNotifyCallback))
852	{
853	AssertFailed();
854	Status = STATUS_INVALID_PARAMETER;
855	break;
856	}
857
858	VBoxGuestMouseSetNotifyCallback pInfo = (VBoxGuestMouseSetNotifyCallback)pvBuf;
859
860	/* we need a lock here to avoid concurrency with the set event functionality */
861	KIRQL OldIrql;
862	KeAcquireSpinLock(&pDevExt->win.s.MouseEventAccessLock, &OldIrql);
863	pDevExt->MouseNotifyCallback = *pInfo;
864	KeReleaseSpinLock(&pDevExt->win.s.MouseEventAccessLock, OldIrql);
865
866	Status = STATUS_SUCCESS;
867	break;
868	}
869
870	default:
871	break;
872	}
873
874
875	if (fProcessed)
876	{
877	pIrp->IoStatus.Status = Status;
878	pIrp->IoStatus.Information = Info;
879
880	IoCompleteRequest(pIrp, IO_NO_INCREMENT);
881	return Status;
882	}
883
884	return vboxguestwinIOCtl(pDevObj, pIrp);
885	}
886
887
888	/**
889	* IRP_MJ_SYSTEM_CONTROL handler.
890	*
891	* @returns NT status code
892	* @param pDevObj Device object.
893	* @param pIrp IRP.
894	*/
895	NTSTATUS vboxguestwinSystemControl(PDEVICE_OBJECT pDevObj, PIRP pIrp)
896	{
897	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
898
899	Log(("VBoxGuest::vboxguestwinGuestSystemControl\n"));
900
901	/* Always pass it on to the next driver. */
902	IoSkipCurrentIrpStackLocation(pIrp);
903
904	return IoCallDriver(pDevExt->win.s.pNextLowerDriver, pIrp);
905	}
906
907
908	/**
909	* IRP_MJ_SHUTDOWN handler.
910	*
911	* @returns NT status code
912	* @param pDevObj Device object.
913	* @param pIrp IRP.
914	*/
915	NTSTATUS vboxguestwinShutdown(PDEVICE_OBJECT pDevObj, PIRP pIrp)
916	{
917	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
918
919	Log(("VBoxGuest::vboxguestwinGuestShutdown\n"));
920
921	VMMDevPowerStateRequest *pReq = pDevExt->win.s.pPowerStateRequest;
922	if (pReq)
923	{
924	pReq->header.requestType = VMMDevReq_SetPowerStatus;
925	pReq->powerState = VMMDevPowerState_PowerOff;
926
927	int rc = VbglGRPerform(&pReq->header);
928	if (RT_FAILURE(rc))
929	{
930	Log(("VBoxGuest::vboxguestwinGuestShutdown: Error performing request to VMMDev! "
931	"rc = %Rrc\n", rc));
932	}
933	}
934	return STATUS_SUCCESS;
935	}
936
937
938	/**
939	* Stub function for functions we don't implemented.
940	*
941	* @returns STATUS_NOT_SUPPORTED
942	* @param pDevObj Device object.
943	* @param pIrp IRP.
944	*/
945	NTSTATUS vboxguestwinNotSupportedStub(PDEVICE_OBJECT pDevObj, PIRP pIrp)
946	{
947	Log(("VBoxGuest::vboxguestwinGuestNotSupportedStub\n"));
948
949	pIrp->IoStatus.Information = 0;
950	pIrp->IoStatus.Status = STATUS_NOT_SUPPORTED;
951	IoCompleteRequest(pIrp, IO_NO_INCREMENT);
952
953	return STATUS_NOT_SUPPORTED;
954	}
955
956
957	/**
958	* DPC handler.
959	*
960	* @param pDPC DPC descriptor.
961	* @param pDevObj Device object.
962	* @param pIrp Interrupt request packet.
963	* @param pContext Context specific pointer.
964	*/
965	void vboxguestwinDpcHandler(PKDPC pDPC, PDEVICE_OBJECT pDevObj, PIRP pIrp, PVOID pContext)
966	{
967	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
968	Log(("VBoxGuest::vboxguestwinGuestDpcHandler: pDevExt=0x%p\n", pDevExt));
969
970	/* test & reset the counter */
971	if (ASMAtomicXchgU32(&pDevExt->u32MousePosChangedSeq, 0))
972	{
973	/* we need a lock here to avoid concurrency with the set event ioctl handler thread,
974	* i.e. to prevent the event from destroyed while we're using it */
975	Assert(KeGetCurrentIrql() == DISPATCH_LEVEL);
976	KeAcquireSpinLockAtDpcLevel(&pDevExt->win.s.MouseEventAccessLock);
977
978	if (pDevExt->MouseNotifyCallback.pfnNotify)
979	pDevExt->MouseNotifyCallback.pfnNotify(pDevExt->MouseNotifyCallback.pvUser);
980
981	KeReleaseSpinLockFromDpcLevel(&pDevExt->win.s.MouseEventAccessLock);
982	}
983
984	/* Process the wake-up list we were asked by the scheduling a DPC
985	* in vboxguestwinIsrHandler(). */
986	VBoxGuestWaitDoWakeUps(pDevExt);
987	}
988
989
990	/**
991	* ISR handler.
992	*
993	* @return BOOLEAN Indicates whether the IRQ came from us (TRUE) or not (FALSE).
994	* @param pInterrupt Interrupt that was triggered.
995	* @param pServiceContext Context specific pointer.
996	*/
997	BOOLEAN vboxguestwinIsrHandler(PKINTERRUPT pInterrupt, PVOID pServiceContext)
998	{
999	PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pServiceContext;
1000	if (pDevExt == NULL)
1001	return FALSE;
1002
1003	/*Log(("VBoxGuest::vboxguestwinGuestIsrHandler: pDevExt = 0x%p, pVMMDevMemory = 0x%p\n",
1004	pDevExt, pDevExt ? pDevExt->pVMMDevMemory : NULL));*/
1005
1006	/* Enter the common ISR routine and do the actual work. */
1007	BOOLEAN fIRQTaken = VBoxGuestCommonISR(pDevExt);
1008
1009	/* If we need to wake up some events we do that in a DPC to make
1010	* sure we're called at the right IRQL. */
1011	if (fIRQTaken)
1012	{
1013	Log(("VBoxGuest::vboxguestwinGuestIsrHandler: IRQ was taken! pInterrupt = 0x%p, pDevExt = 0x%p\n",
1014	pInterrupt, pDevExt));
1015	if (ASMAtomicUoReadU32(&pDevExt->u32MousePosChangedSeq) \|\| !RTListIsEmpty(&pDevExt->WakeUpList))
1016	{
1017	Log(("VBoxGuest::vboxguestwinGuestIsrHandler: Requesting DPC ...\n"));
1018	IoRequestDpc(pDevExt->win.s.pDeviceObject, pDevExt->win.s.pCurrentIrp, NULL);
1019	}
1020	}
1021	return fIRQTaken;
1022	}
1023
1024
1025	/*
1026	* Overridden routine for mouse polling events.
1027	*
1028	* @param pDevExt Device extension structure.
1029	*/
1030	void VBoxGuestNativeISRMousePollEvent(PVBOXGUESTDEVEXT pDevExt)
1031	{
1032	NOREF(pDevExt);
1033	/* nothing to do here - i.e. since we can not KeSetEvent from ISR level,
1034	* we rely on the pDevExt->u32MousePosChangedSeq to be set to a non-zero value on a mouse event
1035	* and queue the DPC in our ISR routine in that case doing KeSetEvent from the DPC routine */
1036	}
1037
1038
1039	/**
1040	* Queries (gets) a DWORD value from the registry.
1041	*
1042	* @return NTSTATUS
1043	* @param ulRoot Relative path root. See RTL_REGISTRY_SERVICES or RTL_REGISTRY_ABSOLUTE.
1044	* @param pwszPath Path inside path root.
1045	* @param pwszName Actual value name to look up.
1046	* @param puValue On input this can specify the default value (if RTL_REGISTRY_OPTIONAL is
1047	* not specified in ulRoot), on output this will retrieve the looked up
1048	* registry value if found.
1049	*/
1050	NTSTATUS vboxguestwinRegistryReadDWORD(ULONG ulRoot, PCWSTR pwszPath, PWSTR pwszName,
1051	PULONG puValue)
1052	{
1053	if (!pwszPath \|\| !pwszName \|\| !puValue)
1054	return STATUS_INVALID_PARAMETER;
1055
1056	ULONG ulDefault = *puValue;
1057
1058	RTL_QUERY_REGISTRY_TABLE tblQuery[2];
1059	RtlZeroMemory(tblQuery, sizeof(tblQuery));
1060	/** @todo Add RTL_QUERY_REGISTRY_TYPECHECK! */
1061	tblQuery[0].Flags = RTL_QUERY_REGISTRY_DIRECT;
1062	tblQuery[0].Name = pwszName;
1063	tblQuery[0].EntryContext = puValue;
1064	tblQuery[0].DefaultType = REG_DWORD;
1065	tblQuery[0].DefaultData = &ulDefault;
1066	tblQuery[0].DefaultLength = sizeof(ULONG);
1067
1068	return RtlQueryRegistryValues(ulRoot,
1069	pwszPath,
1070	&tblQuery[0],
1071	NULL /* Context */,
1072	NULL /* Environment */);
1073	}
1074
1075
1076	/**
1077	* Helper to scan the PCI resource list and remember stuff.
1078	*
1079	* @param pResList Resource list
1080	* @param pDevExt Device extension
1081	*/
1082	NTSTATUS vboxguestwinScanPCIResourceList(PCM_RESOURCE_LIST pResList, PVBOXGUESTDEVEXT pDevExt)
1083	{
1084	/* Enumerate the resource list. */
1085	Log(("VBoxGuest::vboxguestwinScanPCIResourceList: Found %d resources\n",
1086	pResList->List->PartialResourceList.Count));
1087
1088	NTSTATUS rc = STATUS_SUCCESS;
1089	PCM_PARTIAL_RESOURCE_DESCRIPTOR pPartialData = NULL;
1090	ULONG rangeCount = 0;
1091	ULONG cMMIORange = 0;
1092	PVBOXGUESTWINBASEADDRESS pBaseAddress = pDevExt->win.s.pciBaseAddress;
1093	for (ULONG i = 0; i < pResList->List->PartialResourceList.Count; i++)
1094	{
1095	pPartialData = &pResList->List->PartialResourceList.PartialDescriptors[i];
1096	switch (pPartialData->Type)
1097	{
1098	case CmResourceTypePort:
1099	{
1100	/* Overflow protection. */
1101	if (rangeCount < PCI_TYPE0_ADDRESSES)
1102	{
1103	Log(("VBoxGuest::vboxguestwinScanPCIResourceList: I/O range: Base = %08x:%08x, Length = %08x\n",
1104	pPartialData->u.Port.Start.HighPart,
1105	pPartialData->u.Port.Start.LowPart,
1106	pPartialData->u.Port.Length));
1107
1108	/* Save the IO port base. */
1109	/** @todo Not so good. */
1110	pDevExt->IOPortBase = (RTIOPORT)pPartialData->u.Port.Start.LowPart;
1111
1112	/* Save resource information. */
1113	pBaseAddress->RangeStart = pPartialData->u.Port.Start;
1114	pBaseAddress->RangeLength = pPartialData->u.Port.Length;
1115	pBaseAddress->RangeInMemory = FALSE;
1116	pBaseAddress->ResourceMapped = FALSE;
1117
1118	Log(("VBoxGuest::vboxguestwinScanPCIResourceList: I/O range for VMMDev found! Base = %08x:%08x, Length = %08x\n",
1119	pPartialData->u.Port.Start.HighPart,
1120	pPartialData->u.Port.Start.LowPart,
1121	pPartialData->u.Port.Length));
1122
1123	/* Next item ... */
1124	rangeCount++; pBaseAddress++;
1125	}
1126	break;
1127	}
1128
1129	case CmResourceTypeInterrupt:
1130	{
1131	Log(("VBoxGuest::vboxguestwinScanPCIResourceList: Interrupt: Level = %x, Vector = %x, Mode = %x\n",
1132	pPartialData->u.Interrupt.Level,
1133	pPartialData->u.Interrupt.Vector,
1134	pPartialData->Flags));
1135
1136	/* Save information. */
1137	pDevExt->win.s.interruptLevel = pPartialData->u.Interrupt.Level;
1138	pDevExt->win.s.interruptVector = pPartialData->u.Interrupt.Vector;
1139	pDevExt->win.s.interruptAffinity = pPartialData->u.Interrupt.Affinity;
1140
1141	/* Check interrupt mode. */
1142	if (pPartialData->Flags & CM_RESOURCE_INTERRUPT_LATCHED)
1143	{
1144	pDevExt->win.s.interruptMode = Latched;
1145	}
1146	else
1147	{
1148	pDevExt->win.s.interruptMode = LevelSensitive;
1149	}
1150	break;
1151	}
1152
1153	case CmResourceTypeMemory:
1154	{
1155	/* Overflow protection. */
1156	if (rangeCount < PCI_TYPE0_ADDRESSES)
1157	{
1158	Log(("VBoxGuest::vboxguestwinScanPCIResourceList: Memory range: Base = %08x:%08x, Length = %08x\n",
1159	pPartialData->u.Memory.Start.HighPart,
1160	pPartialData->u.Memory.Start.LowPart,
1161	pPartialData->u.Memory.Length));
1162
1163	/* We only care about read/write memory. */
1164	/** @todo Reconsider memory type. */
1165	if ( cMMIORange == 0 /* Only care about the first MMIO range (!!!). */
1166	&& (pPartialData->Flags & VBOX_CM_PRE_VISTA_MASK) == CM_RESOURCE_MEMORY_READ_WRITE)
1167	{
1168	/* Save physical MMIO base + length for VMMDev. */
1169	pDevExt->win.s.vmmDevPhysMemoryAddress = pPartialData->u.Memory.Start;
1170	pDevExt->win.s.vmmDevPhysMemoryLength = (ULONG)pPartialData->u.Memory.Length;
1171
1172	/* Save resource information. */
1173	pBaseAddress->RangeStart = pPartialData->u.Memory.Start;
1174	pBaseAddress->RangeLength = pPartialData->u.Memory.Length;
1175	pBaseAddress->RangeInMemory = TRUE;
1176	pBaseAddress->ResourceMapped = FALSE;
1177
1178	Log(("VBoxGuest::vboxguestwinScanPCIResourceList: Memory range for VMMDev found! Base = %08x:%08x, Length = %08x\n",
1179	pPartialData->u.Memory.Start.HighPart,
1180	pPartialData->u.Memory.Start.LowPart,
1181	pPartialData->u.Memory.Length));
1182
1183	/* Next item ... */
1184	rangeCount++; pBaseAddress++; cMMIORange++;
1185	}
1186	else
1187	{
1188	Log(("VBoxGuest::vboxguestwinScanPCIResourceList: Ignoring memory: Flags = %08x\n",
1189	pPartialData->Flags));
1190	}
1191	}
1192	break;
1193	}
1194
1195	default:
1196	{
1197	Log(("VBoxGuest::vboxguestwinScanPCIResourceList: Unhandled resource found, type = %d\n", pPartialData->Type));
1198	break;
1199	}
1200	}
1201	}
1202
1203	/* Memorize the number of resources found. */
1204	pDevExt->win.s.pciAddressCount = rangeCount;
1205	return rc;
1206	}
1207
1208
1209	/**
1210	* Maps the I/O space from VMMDev to virtual kernel address space.
1211	*
1212	* @return NTSTATUS
1213	*
1214	* @param pDevExt The device extension.
1215	* @param physicalAdr Physical address to map.
1216	* @param ulLength Length (in bytes) to map.
1217	* @param ppvMMIOBase Pointer of mapped I/O base.
1218	* @param pcbMMIO Length of mapped I/O base.
1219	*/
1220	NTSTATUS vboxguestwinMapVMMDevMemory(PVBOXGUESTDEVEXT pDevExt, PHYSICAL_ADDRESS physicalAdr, ULONG ulLength,
1221	void *ppvMMIOBase, uint32_t pcbMMIO)
1222	{
1223	AssertPtrReturn(pDevExt, VERR_INVALID_POINTER);
1224	AssertPtrReturn(ppvMMIOBase, VERR_INVALID_POINTER);
1225	/* pcbMMIO is optional. */
1226
1227	NTSTATUS rc = STATUS_SUCCESS;
1228	if (physicalAdr.LowPart > 0) /* We're mapping below 4GB. */
1229	{
1230	VMMDevMemory pVMMDevMemory = (VMMDevMemory )MmMapIoSpace(physicalAdr, ulLength, MmNonCached);
1231	Log(("VBoxGuest::vboxguestwinMapVMMDevMemory: pVMMDevMemory = 0x%x\n", pVMMDevMemory));
1232	if (pVMMDevMemory)
1233	{
1234	Log(("VBoxGuest::vboxguestwinMapVMMDevMemory: VMMDevMemory: Version = 0x%x, Size = %d\n",
1235	pVMMDevMemory->u32Version, pVMMDevMemory->u32Size));
1236
1237	/* Check version of the structure; do we have the right memory version? */
1238	if (pVMMDevMemory->u32Version != VMMDEV_MEMORY_VERSION)
1239	{
1240	Log(("VBoxGuest::vboxguestwinMapVMMDevMemory: Wrong version (%u), refusing operation!\n",
1241	pVMMDevMemory->u32Version));
1242
1243	/* Not our version, refuse operation and unmap the memory. */
1244	vboxguestwinUnmapVMMDevMemory(pDevExt);
1245	rc = STATUS_UNSUCCESSFUL;
1246	}
1247	else
1248	{
1249	/* Save results. */
1250	*ppvMMIOBase = pVMMDevMemory;
1251	if (pcbMMIO) /* Optional. */
1252	*pcbMMIO = pVMMDevMemory->u32Size;
1253
1254	Log(("VBoxGuest::vboxguestwinMapVMMDevMemory: VMMDevMemory found and mapped! pvMMIOBase = 0x%p\n",
1255	*ppvMMIOBase));
1256	}
1257	}
1258	else
1259	rc = STATUS_UNSUCCESSFUL;
1260	}
1261	return rc;
1262	}
1263
1264
1265	/**
1266	* Unmaps the VMMDev I/O range from kernel space.
1267	*
1268	* @param pDevExt The device extension.
1269	*/
1270	void vboxguestwinUnmapVMMDevMemory(PVBOXGUESTDEVEXT pDevExt)
1271	{
1272	Log(("VBoxGuest::vboxguestwinUnmapVMMDevMemory: pVMMDevMemory = 0x%x\n", pDevExt->pVMMDevMemory));
1273	if (pDevExt->pVMMDevMemory)
1274	{
1275	MmUnmapIoSpace((void*)pDevExt->pVMMDevMemory, pDevExt->win.s.vmmDevPhysMemoryLength);
1276	pDevExt->pVMMDevMemory = NULL;
1277	}
1278
1279	pDevExt->win.s.vmmDevPhysMemoryAddress.QuadPart = 0;
1280	pDevExt->win.s.vmmDevPhysMemoryLength = 0;
1281	}
1282
1283
1284	VBOXOSTYPE vboxguestwinVersionToOSType(winVersion_t winVer)
1285	{
1286	VBOXOSTYPE enmOsType;
1287	switch (winVer)
1288	{
1289	case WINNT4:
1290	enmOsType = VBOXOSTYPE_WinNT4;
1291	break;
1292
1293	case WIN2K:
1294	enmOsType = VBOXOSTYPE_Win2k;
1295	break;
1296
1297	case WINXP:
1298	#if ARCH_BITS == 64
1299	enmOsType = VBOXOSTYPE_WinXP_x64;
1300	#else
1301	enmOsType = VBOXOSTYPE_WinXP;
1302	#endif
1303	break;
1304
1305	case WIN2K3:
1306	#if ARCH_BITS == 64
1307	enmOsType = VBOXOSTYPE_Win2k3_x64;
1308	#else
1309	enmOsType = VBOXOSTYPE_Win2k3;
1310	#endif
1311	break;
1312
1313	case WINVISTA:
1314	#if ARCH_BITS == 64
1315	enmOsType = VBOXOSTYPE_WinVista_x64;
1316	#else
1317	enmOsType = VBOXOSTYPE_WinVista;
1318	#endif
1319	break;
1320
1321	case WIN7:
1322	#if ARCH_BITS == 64
1323	enmOsType = VBOXOSTYPE_Win7_x64;
1324	#else
1325	enmOsType = VBOXOSTYPE_Win7;
1326	#endif
1327	break;
1328
1329	case WIN8:
1330	#if ARCH_BITS == 64
1331	enmOsType = VBOXOSTYPE_Win8_x64;
1332	#else
1333	enmOsType = VBOXOSTYPE_Win8;
1334	#endif
1335	break;
1336
1337	default:
1338	/* We don't know, therefore NT family. */
1339	enmOsType = VBOXOSTYPE_WinNT;
1340	break;
1341	}
1342	return enmOsType;
1343	}
1344
1345	#ifdef DEBUG
1346
1347	/**
1348	* A quick implementation of AtomicTestAndClear for uint32_t and multiple bits.
1349	*/
1350	static uint32_t vboxugestwinAtomicBitsTestAndClear(void *pu32Bits, uint32_t u32Mask)
1351	{
1352	AssertPtrReturn(pu32Bits, 0);
1353	LogFlowFunc(("pu32Bits=0x%x, u32Mask=0x%x\n", (long *)pu32Bits,
1354	u32Mask));
1355	uint32_t u32Result = 0;
1356	uint32_t u32WorkingMask = u32Mask;
1357	int iBitOffset = ASMBitFirstSetU32 (u32WorkingMask);
1358
1359	while (iBitOffset > 0)
1360	{
1361	bool fSet = ASMAtomicBitTestAndClear(pu32Bits, iBitOffset - 1);
1362	if (fSet)
1363	u32Result \|= 1 << (iBitOffset - 1);
1364	u32WorkingMask &= ~(1 << (iBitOffset - 1));
1365	iBitOffset = ASMBitFirstSetU32 (u32WorkingMask);
1366	}
1367	LogFlowFunc(("Returning 0x%x\n", u32Result));
1368	return u32Result;
1369	}
1370
1371
1372	static void vboxguestwinTestAtomicTestAndClearBitsU32(uint32_t u32Mask, uint32_t u32Bits,
1373	uint32_t u32Exp)
1374	{
1375	ULONG u32Bits2 = u32Bits;
1376	uint32_t u32Result = vboxugestwinAtomicBitsTestAndClear(&u32Bits2, u32Mask);
1377	if ( u32Result != u32Exp
1378	\|\| (u32Bits2 & u32Mask)
1379	\|\| (u32Bits2 & u32Result)
1380	\|\| ((u32Bits2 \| u32Result) != u32Bits)
1381	)
1382	AssertLogRelMsgFailed(("%s: TEST FAILED: u32Mask=0x%x, u32Bits (before)=0x%x, u32Bits (after)=0x%x, u32Result=0x%x, u32Exp=ox%x\n",
1383	__PRETTY_FUNCTION__, u32Mask, u32Bits, u32Bits2,
1384	u32Result));
1385	}
1386
1387
1388	static void vboxguestwinDoTests()
1389	{
1390	vboxguestwinTestAtomicTestAndClearBitsU32(0x00, 0x23, 0);
1391	vboxguestwinTestAtomicTestAndClearBitsU32(0x11, 0, 0);
1392	vboxguestwinTestAtomicTestAndClearBitsU32(0x11, 0x22, 0);
1393	vboxguestwinTestAtomicTestAndClearBitsU32(0x11, 0x23, 0x1);
1394	vboxguestwinTestAtomicTestAndClearBitsU32(0x11, 0x32, 0x10);
1395	vboxguestwinTestAtomicTestAndClearBitsU32(0x22, 0x23, 0x22);
1396	}
1397
1398	#endif /* DEBUG */
1399
1400	#ifdef VBOX_WITH_DPC_LATENCY_CHECKER
1401	#pragma pack(1)
1402	typedef struct DPCSAMPLE
1403	{
1404	LARGE_INTEGER PerfDelta;
1405	LARGE_INTEGER PerfCounter;
1406	LARGE_INTEGER PerfFrequency;
1407	uint64_t u64TSC;
1408	} DPCSAMPLE;
1409
1410	typedef struct DPCDATA
1411	{
1412	KDPC Dpc;
1413	KTIMER Timer;
1414	KSPIN_LOCK SpinLock;
1415
1416	ULONG ulTimerRes;
1417
1418	LARGE_INTEGER DueTime;
1419
1420	BOOLEAN fFinished;
1421
1422	LARGE_INTEGER PerfCounterPrev;
1423
1424	int iSampleCount;
1425	DPCSAMPLE aSamples[8192];
1426	} DPCDATA;
1427	#pragma pack(1)
1428
1429	#define VBOXGUEST_DPC_TAG 'DPCS'
1430
1431	static VOID DPCDeferredRoutine(struct _KDPC *Dpc,
1432	PVOID DeferredContext,
1433	PVOID SystemArgument1,
1434	PVOID SystemArgument2)
1435	{
1436	DPCDATA pData = (DPCDATA )DeferredContext;
1437
1438	KeAcquireSpinLockAtDpcLevel(&pData->SpinLock);
1439
1440	if (pData->iSampleCount >= RT_ELEMENTS(pData->aSamples))
1441	{
1442	pData->fFinished = 1;
1443	KeReleaseSpinLockFromDpcLevel(&pData->SpinLock);
1444	return;
1445	}
1446
1447	DPCSAMPLE *pSample = &pData->aSamples[pData->iSampleCount++];
1448
1449	pSample->u64TSC = ASMReadTSC();
1450	pSample->PerfCounter = KeQueryPerformanceCounter(&pSample->PerfFrequency);
1451	pSample->PerfDelta.QuadPart = pSample->PerfCounter.QuadPart - pData->PerfCounterPrev.QuadPart;
1452
1453	pData->PerfCounterPrev.QuadPart = pSample->PerfCounter.QuadPart;
1454
1455	KeSetTimer(&pData->Timer, pData->DueTime, &pData->Dpc);
1456
1457	KeReleaseSpinLockFromDpcLevel(&pData->SpinLock);
1458	}
1459
1460	int VBoxGuestCommonIOCtl_DPC(PVBOXGUESTDEVEXT pDevExt, PVBOXGUESTSESSION pSession,
1461	void pvData, size_t cbData, size_t pcbDataReturned)
1462	{
1463	int rc = VINF_SUCCESS;
1464
1465	/* Allocate a non paged memory for samples and related data. */
1466	DPCDATA pData = (DPCDATA )ExAllocatePoolWithTag(NonPagedPool, sizeof(DPCDATA), VBOXGUEST_DPC_TAG);
1467
1468	if (!pData)
1469	{
1470	RTLogBackdoorPrintf("VBoxGuest: DPC: DPCDATA allocation failed.\n");
1471	return VERR_NO_MEMORY;
1472	}
1473
1474	KeInitializeDpc(&pData->Dpc, DPCDeferredRoutine, pData);
1475	KeInitializeTimer(&pData->Timer);
1476	KeInitializeSpinLock(&pData->SpinLock);
1477
1478	pData->fFinished = 0;
1479	pData->iSampleCount = 0;
1480	pData->PerfCounterPrev.QuadPart = 0;
1481
1482	pData->ulTimerRes = ExSetTimerResolution(1000 * 10, 1);
1483	pData->DueTime.QuadPart = -(int64_t)pData->ulTimerRes / 10;
1484
1485	/* Start the DPC measurements. */
1486	KeSetTimer(&pData->Timer, pData->DueTime, &pData->Dpc);
1487
1488	while (!pData->fFinished)
1489	{
1490	LARGE_INTEGER Interval;
1491	Interval.QuadPart = -100 * 1000 * 10;
1492	KeDelayExecutionThread(KernelMode, TRUE, &Interval);
1493	}
1494
1495	ExSetTimerResolution(0, 0);
1496
1497	/* Log everything to the host. */
1498	RTLogBackdoorPrintf("DPC: ulTimerRes = %d\n", pData->ulTimerRes);
1499	int i;
1500	for (i = 0; i < pData->iSampleCount; i++)
1501	{
1502	DPCSAMPLE *pSample = &pData->aSamples[i];
1503
1504	RTLogBackdoorPrintf("[%d] pd %lld pc %lld pf %lld t %lld\n",
1505	i,
1506	pSample->PerfDelta.QuadPart,
1507	pSample->PerfCounter.QuadPart,
1508	pSample->PerfFrequency.QuadPart,
1509	pSample->u64TSC);
1510	}
1511
1512	ExFreePoolWithTag(pData, VBOXGUEST_DPC_TAG);
1513	return rc;
1514	}
1515	#endif /* VBOX_WITH_DPC_LATENCY_CHECKER */

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source: vbox/trunk/src/VBox/Additions/common/VBoxGuest/VBoxGuest-win.cpp@ 42738

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