VirtualBox

source: vbox/trunk/src/VBox/Additions/WINNT/VBoxGuest/NTLegacy.cpp@ 13483

Last change on this file since 13483 was 13483, checked in by vboxsync, 16 years ago

Fixed Windows2000 guest shutdown crash in VBoxGuest.sys
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 12.6 KB
Line 
1/** @file
2 *
3 * VBoxGuest -- VirtualBox Win32 guest support driver
4 *
5 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
16 * Clara, CA 95054 USA or visit http://www.sun.com if you need
17 * additional information or have any questions.
18 */
19
20// enable backdoor logging
21//#define LOG_ENABLED
22
23/*******************************************************************************
24* Header Files *
25*******************************************************************************/
26#include "NTLegacy.h"
27#include "Helper.h"
28
29#include <VBox/VBoxGuestLib.h>
30
31/*******************************************************************************
32* Defined Constants And Macros *
33*******************************************************************************/
34
35
36/*******************************************************************************
37* Internal Functions *
38*******************************************************************************/
39extern "C"
40{
41static NTSTATUS findPCIDevice(PULONG pBusNumber, PPCI_SLOT_NUMBER pSlotNumber);
42static void freeDeviceResources(PDRIVER_OBJECT pDrvObj, PDEVICE_OBJECT pDevObj);
43}
44
45#ifdef ALLOC_PRAGMA
46#pragma alloc_text (INIT, ntCreateDevice)
47#pragma alloc_text (INIT, findPCIDevice)
48#pragma alloc_text (INIT, freeDeviceResources)
49#endif
50
51/**
52 * Helper function to create the device object
53 *
54 * @returns NT status code
55 * @param
56 */
57NTSTATUS ntCreateDevice(PDRIVER_OBJECT pDrvObj, PDEVICE_OBJECT pDevObj, PUNICODE_STRING pRegPath)
58{
59 ULONG busNumber, slotNumber;
60// ULONG i;
61 NTSTATUS rc = STATUS_SUCCESS;
62
63 dprintf(("VBoxGuest::ntCreateDevice: entered\n"));
64
65 // find our virtual PCI device
66 rc = findPCIDevice(&busNumber, (PCI_SLOT_NUMBER*)&slotNumber);
67 if (!NT_SUCCESS(rc))
68 {
69 dprintf(("VBoxGuest::createDevice: device not found, returning\n"));
70 return rc;
71 }
72
73 /*
74 * Create device.
75 */
76 PDEVICE_OBJECT deviceObject = NULL;
77 UNICODE_STRING DevName;
78 RtlInitUnicodeString(&DevName, VBOXGUEST_DEVICE_NAME_NT);
79 rc = IoCreateDevice(pDrvObj, sizeof(VBOXGUESTDEVEXT), &DevName, FILE_DEVICE_UNKNOWN, 0, FALSE, &deviceObject);
80 if (!NT_SUCCESS(rc))
81 {
82 dprintf(("VBoxGuest::ntCreateDevice: IoCreateDevice failed with rc=%#x!\n", rc));
83 return rc;
84 }
85 dprintf(("VBoxGuest::ntCreateDevice: device created\n"));
86 UNICODE_STRING DosName;
87 RtlInitUnicodeString(&DosName, VBOXGUEST_DEVICE_NAME_DOS);
88 rc = IoCreateSymbolicLink(&DosName, &DevName);
89 if (!NT_SUCCESS(rc))
90 {
91 dprintf(("VBoxGuest::ntCreateDevice: IoCreateSymbolicLink failed with rc=%#x!\n", rc));
92 IoDeleteDevice(deviceObject);
93 return rc;
94 }
95 dprintf(("VBoxGuest::ntCreateDevice: symlink created\n"));
96
97 /*
98 * Setup the device extension.
99 */
100 PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)deviceObject->DeviceExtension;
101 RtlZeroMemory(pDevExt, sizeof(VBOXGUESTDEVEXT));
102
103 if (pDevObj)
104 {
105 pDevExt->nextLowerDriver = IoAttachDeviceToDeviceStack(deviceObject, pDevObj);
106 if (pDevExt->nextLowerDriver == NULL)
107 {
108 dprintf(("VBoxGuest::ntCreateDevice: IoAttachDeviceToDeviceStack did not give a nextLowerDrive\n"));
109 IoDeleteSymbolicLink(&DosName);
110 IoDeleteDevice(deviceObject);
111 return STATUS_NO_SUCH_DEVICE;
112 }
113 }
114 // store a reference to ourself
115 pDevExt->deviceObject = deviceObject;
116 // store bus and slot number we've queried before
117 pDevExt->busNumber = busNumber;
118 pDevExt->slotNumber = slotNumber;
119
120 //
121 // let's have a look at what our PCI adapter offers
122 //
123 dprintf(("VBoxGuest::ntCreateDevice: starting to scan PCI resources of VBoxGuest\n"));
124 // assign the PCI resources
125 PCM_RESOURCE_LIST resourceList;
126 UNICODE_STRING classNameString;
127 RtlInitUnicodeString(&classNameString, L"VBoxGuestAdapter");
128 rc = HalAssignSlotResources(pRegPath, &classNameString,
129 pDrvObj, pDevObj,
130 PCIBus, busNumber, slotNumber,
131 &resourceList);
132 if (!NT_SUCCESS(rc))
133 {
134 dprintf(("VBoxGuest::ntCreateDevice: HalAssignSlotResources failed with rc=%#x!\n", rc));
135 freeDeviceResources(pDrvObj, pDevObj);
136 return rc;
137 }
138
139 rc = VBoxScanPCIResourceList(resourceList, pDevExt);
140
141 rc = VbglInit (pDevExt->startPortAddress, pDevExt->pVMMDevMemory);
142 if (!VBOX_SUCCESS(rc))
143 {
144 dprintf(("VBoxGuest::START_DEVICE: VbglInit failed. rc = %d\n", rc));
145 }
146
147
148 rc = VbglGRAlloc ((VMMDevRequestHeader **)&pDevExt->irqAckEvents, sizeof (VMMDevEvents), VMMDevReq_AcknowledgeEvents);
149 if (!VBOX_SUCCESS(rc))
150 {
151 dprintf(("VBoxGuest::START_DEVICE: VbglAlloc failed for irqAckEvents. rc = %d\n", rc));
152 }
153 rc = VbglGRAlloc ((VMMDevRequestHeader **)&pDevExt->powerStateRequest, sizeof (VMMDevPowerStateRequest), VMMDevReq_SetPowerStatus);
154 if (!VBOX_SUCCESS(rc))
155 {
156 dprintf(("VBoxGuest::START_DEVICE: VbglAlloc failed for powerStateRequest. rc = %d\n", rc));
157 }
158
159#if 0
160 //
161 // now proceed to the busmaster DMA stuff
162 //
163
164 DEVICE_DESCRIPTION deviceDescription;
165 ULONG numberOfMapRegisters;
166 deviceDescription.Version = DEVICE_DESCRIPTION_VERSION;
167 deviceDescription.Master = TRUE;
168 deviceDescription.ScatterGather = TRUE;
169 deviceDescription.BusNumber = pDevExt->busNumber;
170 deviceDescription.InterfaceType = PCIBus;
171 deviceDescription.MaximumLength = MAXIMUM_TRANSFER_LENGTH;
172 pDevExt->adapterObject = HalGetAdapter(&deviceDescription, &numberOfMapRegisters);
173 if (pDevExt->adapterObject == NULL)
174 {
175 dprintf(("VBoxGuest::ntCreateDevice: HalGetAdapter failed!\n"));
176 freeDeviceResources(pDrvObj, pDevObj);
177 return rc;
178 }
179
180 // @todo allocate S/G buffer
181#endif
182
183
184 //
185 // it's time to map the I/O and memory spaces
186 //
187
188 // Map physical address of VMMDev memory
189 rc = hlpVBoxMapVMMDevMemory (pDevExt);
190 if (!NT_SUCCESS(rc))
191 {
192 dprintf(("VBoxGuest::ntCreateDevice: Unable to map VMMDev Memory, rc=%#x!\n", rc));
193 freeDeviceResources(pDrvObj, pDevObj);
194 return rc;
195 }
196
197 //
198 // now we need an ISR and DPC
199 //
200
201 // register DPC routine
202 dprintf(("VBoxGuest::ntCreateDevice: initializing DPC...\n"));
203 IoInitializeDpcRequest(pDevExt->deviceObject, VBoxGuestDpcHandler);
204 // get an interrupt vector
205 ULONG vector;
206 KIRQL irql;
207 KAFFINITY affinity;
208 // only proceed if the device provides an interrupt
209 if (pDevExt->interruptLevel || pDevExt->interruptVector)
210 {
211 vector = HalGetInterruptVector(PCIBus,
212 pDevExt->busNumber,
213 pDevExt->interruptLevel,
214 pDevExt->interruptVector,
215 &irql,
216 &affinity);
217 dprintf(("VBoxGuest::ntCreateDevice: HalGetInterruptVector returns vector %u\n", vector));
218 rc = IoConnectInterrupt(&pDevExt->interruptObject, // out: interrupt object
219 (PKSERVICE_ROUTINE)VBoxGuestIsrHandler, // ISR
220 pDevExt, // context
221 NULL, // optional spinlock
222 vector, // interrupt vector
223 irql, // interrupt level
224 irql, // interrupt level
225 pDevExt->interruptMode, // LevelSensitive or Latched
226 TRUE, // shareable interrupt
227 affinity, // CPU affinity
228 FALSE); // don't save FPU stack
229 if (!NT_SUCCESS(rc))
230 {
231 dprintf(("VBoxGuest::ntCreateDevice: Unable to connect interrupt, rc=%#x!\n", rc));
232 pDevExt->interruptObject = NULL;
233 freeDeviceResources(pDrvObj, pDevObj);
234 return rc;
235 }
236 dprintf(("VBoxGuest::ntCreateDevice: IRQ connected!\n"));
237 }
238
239 if (NT_SUCCESS(rc))
240 {
241 // create our thread to inform the VBoxMouse driver
242 rc = createThreads(pDevExt);
243 }
244
245 if (NT_SUCCESS(rc))
246 {
247 // initialize the event notification semaphore
248 KeInitializeEvent(&pDevExt->keventNotification, NotificationEvent, FALSE);
249
250 /* Preallocated constant timeout 250ms for HGCM async waiter. */
251 pDevExt->HGCMWaitTimeout.QuadPart = 250;
252 pDevExt->HGCMWaitTimeout.QuadPart *= -10000; /* relative in 100ns units */
253 }
254
255 rc = hlpVBoxReportGuestInfo (pDevExt);
256 if (!NT_SUCCESS(rc))
257 {
258 dprintf(("VBoxGuest::AddDevice: could not report information to host, rc = %d, exiting!\n", rc));
259 freeDeviceResources(pDrvObj, pDevObj);
260 return STATUS_UNSUCCESSFUL;
261 }
262
263 /** @todo cleanup on failure */
264
265 VBoxInitMemBalloon(pDevExt);
266
267 // ready to rumble!
268 pDevExt->devState = WORKING;
269 dprintf(("returning from createDevice with rc = 0x%x\n", rc));
270 return rc;
271}
272
273
274/**
275 * Helper function to handle the PCI device lookup
276 *
277 * @returns NT error codes
278 */
279static NTSTATUS findPCIDevice(PULONG pBusNumber, PPCI_SLOT_NUMBER pSlotNumber)
280{
281 NTSTATUS rc;
282
283 ULONG busNumber;
284 ULONG deviceNumber;
285 ULONG functionNumber;
286 PCI_SLOT_NUMBER slotNumber;
287 PCI_COMMON_CONFIG pciData;
288
289 dprintf(("findPCIDevice\n"));
290
291 rc = STATUS_DEVICE_DOES_NOT_EXIST;
292 slotNumber.u.AsULONG = 0;
293 // scan each bus
294 for (busNumber = 0; busNumber < PCI_MAX_BUSES; busNumber++)
295 {
296 // scan each device
297 for (deviceNumber = 0; deviceNumber < PCI_MAX_DEVICES; deviceNumber++)
298 {
299 slotNumber.u.bits.DeviceNumber = deviceNumber;
300 // scan each function (not really required...)
301 for (functionNumber = 0; functionNumber < PCI_MAX_FUNCTION; functionNumber++)
302 {
303 slotNumber.u.bits.FunctionNumber = functionNumber;
304 // have a look at what's in this slot
305 if (!HalGetBusData(PCIConfiguration, busNumber, slotNumber.u.AsULONG,
306 &pciData, sizeof(ULONG)))
307 {
308 // no such bus, we're done with it
309 deviceNumber = PCI_MAX_DEVICES;
310 break;
311 }
312
313 if (pciData.VendorID == PCI_INVALID_VENDORID)
314 {
315 // we have to proceed to the next function
316 continue;
317 }
318
319 // check if it's another device
320 if ((pciData.VendorID != VMMDEV_VENDORID) ||
321 (pciData.DeviceID != VMMDEV_DEVICEID))
322 {
323 continue;
324 }
325
326 // Hooray, we've found it!
327 dprintf(("device found!\n"));
328 *pBusNumber = busNumber;
329 *pSlotNumber = slotNumber;
330 rc = STATUS_SUCCESS;
331 }
332 }
333 }
334
335 return rc;
336}
337
338/**
339 * Helper function to cleanup resources
340 *
341 * @param pDrvObj Driver object.
342 * @param pDevObj Device object.
343 */
344static void freeDeviceResources(PDRIVER_OBJECT pDrvObj, PDEVICE_OBJECT pDevObj)
345{
346 PVBOXGUESTDEVEXT pDevExt = (PVBOXGUESTDEVEXT)pDevObj->DeviceExtension;
347
348 // if there's no device extension, we're screwed
349 if (!pDevExt)
350 {
351 dprintf(("freeDeviceResources: FATAL ERROR! device extension pointer is NULL! Not freeing resources!\n"));
352 return;
353 }
354
355 // indicate that the device is no longer ready
356 pDevExt->devState = STOPPED;
357
358 // disconnect interrupts
359 if (pDevExt->interruptObject)
360 {
361 IoDisconnectInterrupt(pDevExt->interruptObject);
362 }
363
364 // unmap mem/io resources
365 hlpVBoxUnmapVMMDevMemory (pDevExt);
366
367 VBoxCleanupMemBalloon(pDevExt);
368}
369
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