VMMDev.cpp@ 76408

Last change on this file since 76408 was 76196, checked in by vboxsync, 6 years ago
VMMDev/HGCM,VBoxGuest: New page list variant for more effectively passing physical contiguous buffers (VbglR0PhysHeapAlloc, kmalloc, ++). bugref:9172
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1	/* $Id: VMMDev.cpp 76196 2018-12-12 19:24:05Z vboxsync $ */
2	/** @file
3	* VMMDev - Guest <-> VMM/Host communication device.
4	*/
5
6	/*
7	* Copyright (C) 2006-2017 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	/** @page pg_vmmdev The VMM Device.
19	*
20	* The VMM device is a custom hardware device emulation for communicating with
21	* the guest additions.
22	*
23	* Whenever host wants to inform guest about something an IRQ notification will
24	* be raised.
25	*
26	* VMMDev PDM interface will contain the guest notification method.
27	*
28	* There is a 32 bit event mask which will be read by guest on an interrupt. A
29	* non zero bit in the mask means that the specific event occurred and requires
30	* processing on guest side.
31	*
32	* After reading the event mask guest must issue a generic request
33	* AcknowlegdeEvents.
34	*
35	* IRQ line is set to 1 (request) if there are unprocessed events, that is the
36	* event mask is not zero.
37	*
38	* After receiving an interrupt and checking event mask, the guest must process
39	* events using the event specific mechanism.
40	*
41	* That is if mouse capabilities were changed, guest will use
42	* VMMDev_GetMouseStatus generic request.
43	*
44	* Event mask is only a set of flags indicating that guest must proceed with a
45	* procedure.
46	*
47	* Unsupported events are therefore ignored. The guest additions must inform
48	* host which events they want to receive, to avoid unnecessary IRQ processing.
49	* By default no events are signalled to guest.
50	*
51	* This seems to be fast method. It requires only one context switch for an
52	* event processing.
53	*
54	*
55	* @section sec_vmmdev_heartbeat Heartbeat
56	*
57	* The heartbeat is a feature to monitor whether the guest OS is hung or not.
58	*
59	* The main kernel component of the guest additions, VBoxGuest, sets up a timer
60	* at a frequency returned by VMMDevReq_HeartbeatConfigure
61	* (VMMDevReqHeartbeat::cNsInterval, VMMDEV::cNsHeartbeatInterval) and performs
62	* a VMMDevReq_GuestHeartbeat request every time the timer ticks.
63	*
64	* The host side (VMMDev) arms a timer with a more distant deadline
65	* (VMMDEV::cNsHeartbeatTimeout), twice cNsHeartbeatInterval by default. Each
66	* time a VMMDevReq_GuestHeartbeat request comes in, the timer is rearmed with
67	* the same relative deadline. So, as long as VMMDevReq_GuestHeartbeat comes
68	* when they should, the host timer will never fire.
69	*
70	* When the timer fires, we consider the guest as hung / flatlined / dead.
71	* Currently we only LogRel that, but it's easy to extend this with an event in
72	* Main API.
73	*
74	* Should the guest reawaken at some later point, we LogRel that event and
75	* continue as normal. Again something which would merit an API event.
76	*
77	*/
78
79
80	/*********************************************************************************************************************************
81	* Header Files *
82	*********************************************************************************************************************************/
83	/* Enable dev_vmm Log3 statements to get IRQ-related logging. */
84	#define LOG_GROUP LOG_GROUP_DEV_VMM
85	#include <VBox/AssertGuest.h>
86	#include <VBox/VMMDev.h>
87	#include <VBox/vmm/dbgf.h>
88	#include <VBox/vmm/mm.h>
89	#include <VBox/log.h>
90	#include <VBox/param.h>
91	#include <iprt/path.h>
92	#include <iprt/dir.h>
93	#include <iprt/file.h>
94	#include <VBox/vmm/pgm.h>
95	#include <VBox/err.h>
96	#include <VBox/vmm/vm.h> /* for VM_IS_EMT */
97	#include <VBox/dbg.h>
98	#include <VBox/version.h>
99
100	#include <iprt/asm.h>
101	#include <iprt/asm-amd64-x86.h>
102	#include <iprt/assert.h>
103	#include <iprt/buildconfig.h>
104	#include <iprt/string.h>
105	#include <iprt/time.h>
106	#ifndef IN_RC
107	# include <iprt/mem.h>
108	#endif
109	#ifdef IN_RING3
110	# include <iprt/uuid.h>
111	#endif
112
113	#include "VMMDevState.h"
114	#ifdef VBOX_WITH_HGCM
115	# include "VMMDevHGCM.h"
116	#endif
117	#ifndef VBOX_WITHOUT_TESTING_FEATURES
118	# include "VMMDevTesting.h"
119	#endif
120
121
122	/*********************************************************************************************************************************
123	* Defined Constants And Macros *
124	*********************************************************************************************************************************/
125	#define VMMDEV_INTERFACE_VERSION_IS_1_03(s) \
126	( RT_HIWORD((s)->guestInfo.interfaceVersion) == 1 \
127	&& RT_LOWORD((s)->guestInfo.interfaceVersion) == 3 )
128
129	#define VMMDEV_INTERFACE_VERSION_IS_OK(additionsVersion) \
130	( RT_HIWORD(additionsVersion) == RT_HIWORD(VMMDEV_VERSION) \
131	&& RT_LOWORD(additionsVersion) <= RT_LOWORD(VMMDEV_VERSION) )
132
133	#define VMMDEV_INTERFACE_VERSION_IS_OLD(additionsVersion) \
134	( (RT_HIWORD(additionsVersion) < RT_HIWORD(VMMDEV_VERSION) \
135	\|\| ( RT_HIWORD(additionsVersion) == RT_HIWORD(VMMDEV_VERSION) \
136	&& RT_LOWORD(additionsVersion) <= RT_LOWORD(VMMDEV_VERSION) ) )
137
138	#define VMMDEV_INTERFACE_VERSION_IS_TOO_OLD(additionsVersion) \
139	( RT_HIWORD(additionsVersion) < RT_HIWORD(VMMDEV_VERSION) )
140
141	#define VMMDEV_INTERFACE_VERSION_IS_NEW(additionsVersion) \
142	( RT_HIWORD(additionsVersion) > RT_HIWORD(VMMDEV_VERSION) \
143	\|\| ( RT_HIWORD(additionsVersion) == RT_HIWORD(VMMDEV_VERSION) \
144	&& RT_LOWORD(additionsVersion) > RT_LOWORD(VMMDEV_VERSION) ) )
145
146	/** Default interval in nanoseconds between guest heartbeats.
147	* Used when no HeartbeatInterval is set in CFGM and for setting
148	* HB check timer if the guest's heartbeat frequency is less than 1Hz. */
149	#define VMMDEV_HEARTBEAT_DEFAULT_INTERVAL (2U*RT_NS_1SEC_64)
150
151
152	#ifndef VBOX_DEVICE_STRUCT_TESTCASE
153	#ifdef IN_RING3
154
155	/* -=-=-=-=- Misc Helpers -=-=-=-=- */
156
157	/**
158	* Log information about the Guest Additions.
159	*
160	* @param pGuestInfo The information we've got from the Guest Additions driver.
161	*/
162	static void vmmdevLogGuestOsInfo(VBoxGuestInfo *pGuestInfo)
163	{
164	const char *pszOs;
165	switch (pGuestInfo->osType & ~VBOXOSTYPE_x64)
166	{
167	case VBOXOSTYPE_DOS: pszOs = "DOS"; break;
168	case VBOXOSTYPE_Win31: pszOs = "Windows 3.1"; break;
169	case VBOXOSTYPE_Win9x: pszOs = "Windows 9x"; break;
170	case VBOXOSTYPE_Win95: pszOs = "Windows 95"; break;
171	case VBOXOSTYPE_Win98: pszOs = "Windows 98"; break;
172	case VBOXOSTYPE_WinMe: pszOs = "Windows Me"; break;
173	case VBOXOSTYPE_WinNT: pszOs = "Windows NT"; break;
174	case VBOXOSTYPE_WinNT3x: pszOs = "Windows NT 3.x"; break;
175	case VBOXOSTYPE_WinNT4: pszOs = "Windows NT4"; break;
176	case VBOXOSTYPE_Win2k: pszOs = "Windows 2k"; break;
177	case VBOXOSTYPE_WinXP: pszOs = "Windows XP"; break;
178	case VBOXOSTYPE_Win2k3: pszOs = "Windows 2k3"; break;
179	case VBOXOSTYPE_WinVista: pszOs = "Windows Vista"; break;
180	case VBOXOSTYPE_Win2k8: pszOs = "Windows 2k8"; break;
181	case VBOXOSTYPE_Win7: pszOs = "Windows 7"; break;
182	case VBOXOSTYPE_Win8: pszOs = "Windows 8"; break;
183	case VBOXOSTYPE_Win2k12_x64 & ~VBOXOSTYPE_x64: pszOs = "Windows 2k12"; break;
184	case VBOXOSTYPE_Win81: pszOs = "Windows 8.1"; break;
185	case VBOXOSTYPE_Win10: pszOs = "Windows 10"; break;
186	case VBOXOSTYPE_Win2k16_x64 & ~VBOXOSTYPE_x64: pszOs = "Windows 2k16"; break;
187	case VBOXOSTYPE_OS2: pszOs = "OS/2"; break;
188	case VBOXOSTYPE_OS2Warp3: pszOs = "OS/2 Warp 3"; break;
189	case VBOXOSTYPE_OS2Warp4: pszOs = "OS/2 Warp 4"; break;
190	case VBOXOSTYPE_OS2Warp45: pszOs = "OS/2 Warp 4.5"; break;
191	case VBOXOSTYPE_ECS: pszOs = "OS/2 ECS"; break;
192	case VBOXOSTYPE_OS21x: pszOs = "OS/2 2.1x"; break;
193	case VBOXOSTYPE_Linux: pszOs = "Linux"; break;
194	case VBOXOSTYPE_Linux22: pszOs = "Linux 2.2"; break;
195	case VBOXOSTYPE_Linux24: pszOs = "Linux 2.4"; break;
196	case VBOXOSTYPE_Linux26: pszOs = "Linux >= 2.6"; break;
197	case VBOXOSTYPE_ArchLinux: pszOs = "ArchLinux"; break;
198	case VBOXOSTYPE_Debian: pszOs = "Debian"; break;
199	case VBOXOSTYPE_OpenSUSE: pszOs = "openSUSE"; break;
200	case VBOXOSTYPE_FedoraCore: pszOs = "Fedora"; break;
201	case VBOXOSTYPE_Gentoo: pszOs = "Gentoo"; break;
202	case VBOXOSTYPE_Mandriva: pszOs = "Mandriva"; break;
203	case VBOXOSTYPE_RedHat: pszOs = "RedHat"; break;
204	case VBOXOSTYPE_Turbolinux: pszOs = "TurboLinux"; break;
205	case VBOXOSTYPE_Ubuntu: pszOs = "Ubuntu"; break;
206	case VBOXOSTYPE_Xandros: pszOs = "Xandros"; break;
207	case VBOXOSTYPE_Oracle: pszOs = "Oracle Linux"; break;
208	case VBOXOSTYPE_FreeBSD: pszOs = "FreeBSD"; break;
209	case VBOXOSTYPE_OpenBSD: pszOs = "OpenBSD"; break;
210	case VBOXOSTYPE_NetBSD: pszOs = "NetBSD"; break;
211	case VBOXOSTYPE_Netware: pszOs = "Netware"; break;
212	case VBOXOSTYPE_Solaris: pszOs = "Solaris"; break;
213	case VBOXOSTYPE_OpenSolaris: pszOs = "OpenSolaris"; break;
214	case VBOXOSTYPE_Solaris11_x64 & ~VBOXOSTYPE_x64: pszOs = "Solaris 11"; break;
215	case VBOXOSTYPE_MacOS: pszOs = "Mac OS X"; break;
216	case VBOXOSTYPE_MacOS106: pszOs = "Mac OS X 10.6"; break;
217	case VBOXOSTYPE_MacOS107_x64 & ~VBOXOSTYPE_x64: pszOs = "Mac OS X 10.7"; break;
218	case VBOXOSTYPE_MacOS108_x64 & ~VBOXOSTYPE_x64: pszOs = "Mac OS X 10.8"; break;
219	case VBOXOSTYPE_MacOS109_x64 & ~VBOXOSTYPE_x64: pszOs = "Mac OS X 10.9"; break;
220	case VBOXOSTYPE_MacOS1010_x64 & ~VBOXOSTYPE_x64: pszOs = "Mac OS X 10.10"; break;
221	case VBOXOSTYPE_MacOS1011_x64 & ~VBOXOSTYPE_x64: pszOs = "Mac OS X 10.11"; break;
222	case VBOXOSTYPE_MacOS1012_x64 & ~VBOXOSTYPE_x64: pszOs = "macOS 10.12"; break;
223	case VBOXOSTYPE_MacOS1013_x64 & ~VBOXOSTYPE_x64: pszOs = "macOS 10.13"; break;
224	case VBOXOSTYPE_Haiku: pszOs = "Haiku"; break;
225	default: pszOs = "unknown"; break;
226	}
227	LogRel(("VMMDev: Guest Additions information report: Interface = 0x%08X osType = 0x%08X (%s, %u-bit)\n",
228	pGuestInfo->interfaceVersion, pGuestInfo->osType, pszOs,
229	pGuestInfo->osType & VBOXOSTYPE_x64 ? 64 : 32));
230	}
231
232
233	/**
234	* Sets the IRQ (raise it or lower it) for 1.03 additions.
235	*
236	* @param pThis The VMMDev state.
237	* @thread Any.
238	* @remarks Must be called owning the critical section.
239	*/
240	static void vmmdevSetIRQ_Legacy(PVMMDEV pThis)
241	{
242	if (pThis->fu32AdditionsOk)
243	{
244	/* Filter unsupported events */
245	uint32_t fEvents = pThis->u32HostEventFlags & pThis->CTX_SUFF(pVMMDevRAM)->V.V1_03.u32GuestEventMask;
246
247	Log(("vmmdevSetIRQ: fEvents=%#010x, u32HostEventFlags=%#010x, u32GuestEventMask=%#010x.\n",
248	fEvents, pThis->u32HostEventFlags, pThis->CTX_SUFF(pVMMDevRAM)->V.V1_03.u32GuestEventMask));
249
250	/* Move event flags to VMMDev RAM */
251	pThis->CTX_SUFF(pVMMDevRAM)->V.V1_03.u32HostEvents = fEvents;
252
253	uint32_t uIRQLevel = 0;
254	if (fEvents)
255	{
256	/* Clear host flags which will be delivered to guest. */
257	pThis->u32HostEventFlags &= ~fEvents;
258	Log(("vmmdevSetIRQ: u32HostEventFlags=%#010x\n", pThis->u32HostEventFlags));
259	uIRQLevel = 1;
260	}
261
262	/* Set IRQ level for pin 0 (see NoWait comment in vmmdevMaybeSetIRQ). */
263	/** @todo make IRQ pin configurable, at least a symbolic constant */
264	PDMDevHlpPCISetIrqNoWait(pThis->CTX_SUFF(pDevIns), 0, uIRQLevel);
265	Log(("vmmdevSetIRQ: IRQ set %d\n", uIRQLevel));
266	}
267	else
268	Log(("vmmdevSetIRQ: IRQ is not generated, guest has not yet reported to us.\n"));
269	}
270
271
272	/**
273	* Sets the IRQ if there are events to be delivered.
274	*
275	* @param pThis The VMMDev state.
276	* @thread Any.
277	* @remarks Must be called owning the critical section.
278	*/
279	static void vmmdevMaybeSetIRQ(PVMMDEV pThis)
280	{
281	Log3(("vmmdevMaybeSetIRQ: u32HostEventFlags=%#010x, u32GuestFilterMask=%#010x.\n",
282	pThis->u32HostEventFlags, pThis->u32GuestFilterMask));
283
284	if (pThis->u32HostEventFlags & pThis->u32GuestFilterMask)
285	{
286	/*
287	* Note! No need to wait for the IRQs to be set (if we're not luck
288	* with the locks, etc). It is a notification about something,
289	* which has already happened.
290	*/
291	pThis->pVMMDevRAMR3->V.V1_04.fHaveEvents = true;
292	PDMDevHlpPCISetIrqNoWait(pThis->pDevInsR3, 0, 1);
293	Log3(("vmmdevMaybeSetIRQ: IRQ set.\n"));
294	}
295	}
296
297	/**
298	* Notifies the guest about new events (@a fAddEvents).
299	*
300	* @param pThis The VMMDev state.
301	* @param fAddEvents New events to add.
302	* @thread Any.
303	* @remarks Must be called owning the critical section.
304	*/
305	static void vmmdevNotifyGuestWorker(PVMMDEV pThis, uint32_t fAddEvents)
306	{
307	Log3(("vmmdevNotifyGuestWorker: fAddEvents=%#010x.\n", fAddEvents));
308	Assert(PDMCritSectIsOwner(&pThis->CritSect));
309
310	if (!VMMDEV_INTERFACE_VERSION_IS_1_03(pThis))
311	{
312	Log3(("vmmdevNotifyGuestWorker: New additions detected.\n"));
313
314	if (pThis->fu32AdditionsOk)
315	{
316	const bool fHadEvents = (pThis->u32HostEventFlags & pThis->u32GuestFilterMask) != 0;
317
318	Log3(("vmmdevNotifyGuestWorker: fHadEvents=%d, u32HostEventFlags=%#010x, u32GuestFilterMask=%#010x.\n",
319	fHadEvents, pThis->u32HostEventFlags, pThis->u32GuestFilterMask));
320
321	pThis->u32HostEventFlags \|= fAddEvents;
322
323	if (!fHadEvents)
324	vmmdevMaybeSetIRQ(pThis);
325	}
326	else
327	{
328	pThis->u32HostEventFlags \|= fAddEvents;
329	Log(("vmmdevNotifyGuestWorker: IRQ is not generated, guest has not yet reported to us.\n"));
330	}
331	}
332	else
333	{
334	Log3(("vmmdevNotifyGuestWorker: Old additions detected.\n"));
335
336	pThis->u32HostEventFlags \|= fAddEvents;
337	vmmdevSetIRQ_Legacy(pThis);
338	}
339	}
340
341
342
343	/* -=-=-=-=- Interfaces shared with VMMDevHGCM.cpp -=-=-=-=- */
344
345	/**
346	* Notifies the guest about new events (@a fAddEvents).
347	*
348	* This is used by VMMDev.cpp as well as VMMDevHGCM.cpp.
349	*
350	* @param pThis The VMMDev state.
351	* @param fAddEvents New events to add.
352	* @thread Any.
353	*/
354	void VMMDevNotifyGuest(PVMMDEV pThis, uint32_t fAddEvents)
355	{
356	Log3(("VMMDevNotifyGuest: fAddEvents=%#010x\n", fAddEvents));
357
358	/*
359	* Only notify the VM when it's running.
360	*/
361	VMSTATE enmVMState = PDMDevHlpVMState(pThis->pDevInsR3);
362	if ( enmVMState == VMSTATE_RUNNING
363	\|\| enmVMState == VMSTATE_RUNNING_LS
364	\|\| enmVMState == VMSTATE_LOADING
365	\|\| enmVMState == VMSTATE_RESUMING
366	\|\| enmVMState == VMSTATE_SUSPENDING
367	\|\| enmVMState == VMSTATE_SUSPENDING_LS
368	\|\| enmVMState == VMSTATE_SUSPENDING_EXT_LS
369	\|\| enmVMState == VMSTATE_DEBUGGING
370	\|\| enmVMState == VMSTATE_DEBUGGING_LS
371	)
372	{
373	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
374	vmmdevNotifyGuestWorker(pThis, fAddEvents);
375	PDMCritSectLeave(&pThis->CritSect);
376	}
377	else
378	LogRel(("VMMDevNotifyGuest: fAddEvents=%#x ignored because enmVMState=%d\n", fAddEvents, enmVMState));
379	}
380
381	/**
382	* Code shared by VMMDevReq_CtlGuestFilterMask and HGCM for controlling the
383	* events the guest are interested in.
384	*
385	* @param pThis The VMMDev state.
386	* @param fOrMask Events to add (VMMDEV_EVENT_XXX). Pass 0 for no
387	* change.
388	* @param fNotMask Events to remove (VMMDEV_EVENT_XXX). Pass 0 for no
389	* change.
390	*
391	* @remarks When HGCM will automatically enable VMMDEV_EVENT_HGCM when the guest
392	* starts submitting HGCM requests. Otherwise, the events are
393	* controlled by the guest.
394	*/
395	void VMMDevCtlSetGuestFilterMask(PVMMDEV pThis, uint32_t fOrMask, uint32_t fNotMask)
396	{
397	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
398
399	const bool fHadEvents = (pThis->u32HostEventFlags & pThis->u32GuestFilterMask) != 0;
400
401	Log(("VMMDevCtlSetGuestFilterMask: fOrMask=%#010x, u32NotMask=%#010x, fHadEvents=%d.\n", fOrMask, fNotMask, fHadEvents));
402	if (fHadEvents)
403	{
404	if (!pThis->fNewGuestFilterMask)
405	pThis->u32NewGuestFilterMask = pThis->u32GuestFilterMask;
406
407	pThis->u32NewGuestFilterMask \|= fOrMask;
408	pThis->u32NewGuestFilterMask &= ~fNotMask;
409	pThis->fNewGuestFilterMask = true;
410	}
411	else
412	{
413	pThis->u32GuestFilterMask \|= fOrMask;
414	pThis->u32GuestFilterMask &= ~fNotMask;
415	vmmdevMaybeSetIRQ(pThis);
416	}
417
418	PDMCritSectLeave(&pThis->CritSect);
419	}
420
421
422
423	/* -=-=-=-=- Request processing functions. -=-=-=-=- */
424
425	/**
426	* Handles VMMDevReq_ReportGuestInfo.
427	*
428	* @returns VBox status code that the guest should see.
429	* @param pThis The VMMDev instance data.
430	* @param pRequestHeader The header of the request to handle.
431	*/
432	static int vmmdevReqHandler_ReportGuestInfo(PVMMDEV pThis, VMMDevRequestHeader *pRequestHeader)
433	{
434	AssertMsgReturn(pRequestHeader->size == sizeof(VMMDevReportGuestInfo), ("%u\n", pRequestHeader->size), VERR_INVALID_PARAMETER);
435	VBoxGuestInfo const pInfo = &((VMMDevReportGuestInfo )pRequestHeader)->guestInfo;
436
437	if (memcmp(&pThis->guestInfo, pInfo, sizeof(*pInfo)) != 0)
438	{
439	/* Make a copy of supplied information. */
440	pThis->guestInfo = *pInfo;
441
442	/* Check additions interface version. */
443	pThis->fu32AdditionsOk = VMMDEV_INTERFACE_VERSION_IS_OK(pThis->guestInfo.interfaceVersion);
444
445	vmmdevLogGuestOsInfo(&pThis->guestInfo);
446
447	if (pThis->pDrv && pThis->pDrv->pfnUpdateGuestInfo)
448	pThis->pDrv->pfnUpdateGuestInfo(pThis->pDrv, &pThis->guestInfo);
449	}
450
451	if (!pThis->fu32AdditionsOk)
452	return VERR_VERSION_MISMATCH;
453
454	/* Clear our IRQ in case it was high for whatever reason. */
455	PDMDevHlpPCISetIrqNoWait(pThis->pDevInsR3, 0, 0);
456
457	return VINF_SUCCESS;
458	}
459
460
461	/**
462	* Handles VMMDevReq_GuestHeartbeat.
463	*
464	* @returns VBox status code that the guest should see.
465	* @param pThis The VMMDev instance data.
466	*/
467	static int vmmDevReqHandler_GuestHeartbeat(PVMMDEV pThis)
468	{
469	int rc;
470	if (pThis->fHeartbeatActive)
471	{
472	uint64_t const nsNowTS = TMTimerGetNano(pThis->pFlatlinedTimer);
473	if (!pThis->fFlatlined)
474	{ /* likely */ }
475	else
476	{
477	LogRel(("VMMDev: GuestHeartBeat: Guest is alive (gone %'llu ns)\n", nsNowTS - pThis->nsLastHeartbeatTS));
478	ASMAtomicWriteBool(&pThis->fFlatlined, false);
479	}
480	ASMAtomicWriteU64(&pThis->nsLastHeartbeatTS, nsNowTS);
481
482	/* Postpone (or restart if we missed a beat) the timeout timer. */
483	rc = TMTimerSetNano(pThis->pFlatlinedTimer, pThis->cNsHeartbeatTimeout);
484	}
485	else
486	rc = VINF_SUCCESS;
487	return rc;
488	}
489
490
491	/**
492	* Timer that fires when where have been no heartbeats for a given time.
493	*
494	* @remarks Does not take the VMMDev critsect.
495	*/
496	static DECLCALLBACK(void) vmmDevHeartbeatFlatlinedTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer, void *pvUser)
497	{
498	RT_NOREF1(pDevIns);
499	PVMMDEV pThis = (PVMMDEV)pvUser;
500	if (pThis->fHeartbeatActive)
501	{
502	uint64_t cNsElapsed = TMTimerGetNano(pTimer) - pThis->nsLastHeartbeatTS;
503	if ( !pThis->fFlatlined
504	&& cNsElapsed >= pThis->cNsHeartbeatInterval)
505	{
506	LogRel(("VMMDev: vmmDevHeartbeatFlatlinedTimer: Guest seems to be unresponsive. Last heartbeat received %RU64 seconds ago\n",
507	cNsElapsed / RT_NS_1SEC));
508	ASMAtomicWriteBool(&pThis->fFlatlined, true);
509	}
510	}
511	}
512
513
514	/**
515	* Handles VMMDevReq_HeartbeatConfigure.
516	*
517	* @returns VBox status code that the guest should see.
518	* @param pThis The VMMDev instance data.
519	* @param pReqHdr The header of the request to handle.
520	*/
521	static int vmmDevReqHandler_HeartbeatConfigure(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
522	{
523	AssertMsgReturn(pReqHdr->size == sizeof(VMMDevReqHeartbeat), ("%u\n", pReqHdr->size), VERR_INVALID_PARAMETER);
524	VMMDevReqHeartbeat pReq = (VMMDevReqHeartbeat )pReqHdr;
525	int rc;
526
527	pReq->cNsInterval = pThis->cNsHeartbeatInterval;
528
529	if (pReq->fEnabled != pThis->fHeartbeatActive)
530	{
531	ASMAtomicWriteBool(&pThis->fHeartbeatActive, pReq->fEnabled);
532	if (pReq->fEnabled)
533	{
534	/*
535	* Activate the heartbeat monitor.
536	*/
537	pThis->nsLastHeartbeatTS = TMTimerGetNano(pThis->pFlatlinedTimer);
538	rc = TMTimerSetNano(pThis->pFlatlinedTimer, pThis->cNsHeartbeatTimeout);
539	if (RT_SUCCESS(rc))
540	LogRel(("VMMDev: Heartbeat flatline timer set to trigger after %'RU64 ns\n", pThis->cNsHeartbeatTimeout));
541	else
542	LogRel(("VMMDev: Error starting flatline timer (heartbeat): %Rrc\n", rc));
543	}
544	else
545	{
546	/*
547	* Deactivate the heartbeat monitor.
548	*/
549	rc = TMTimerStop(pThis->pFlatlinedTimer);
550	LogRel(("VMMDev: Heartbeat checking timer has been stopped (rc=%Rrc)\n", rc));
551	}
552	}
553	else
554	{
555	LogRel(("VMMDev: vmmDevReqHandler_HeartbeatConfigure: No change (fHeartbeatActive=%RTbool)\n", pThis->fHeartbeatActive));
556	rc = VINF_SUCCESS;
557	}
558
559	return rc;
560	}
561
562
563	/**
564	* Handles VMMDevReq_NtBugCheck.
565	*
566	* @returns VBox status code that the guest should see.
567	* @param pThis The VMMDev instance data.
568	* @param pReqHdr The header of the request to handle.
569	*/
570	static int vmmDevReqHandler_NtBugCheck(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
571	{
572	if (pReqHdr->size == sizeof(VMMDevReqNtBugCheck))
573	{
574	VMMDevReqNtBugCheck const pReq = (VMMDevReqNtBugCheck const )pReqHdr;
575	DBGFR3ReportBugCheck(PDMDevHlpGetVM(pThis->pDevInsR3), PDMDevHlpGetVMCPU(pThis->pDevInsR3), DBGFEVENT_BSOD_VMMDEV,
576	pReq->uBugCheck, pReq->auParameters[0], pReq->auParameters[1],
577	pReq->auParameters[2], pReq->auParameters[3]);
578	}
579	else if (pReqHdr->size == sizeof(VMMDevRequestHeader))
580	{
581	LogRel(("VMMDev: NT BugCheck w/o data.\n"));
582	DBGFR3ReportBugCheck(PDMDevHlpGetVM(pThis->pDevInsR3), PDMDevHlpGetVMCPU(pThis->pDevInsR3), DBGFEVENT_BSOD_VMMDEV,
583	0, 0, 0, 0, 0);
584	}
585	else
586	return VERR_INVALID_PARAMETER;
587	return VINF_SUCCESS;
588	}
589
590
591	/**
592	* Validates a publisher tag.
593	*
594	* @returns true / false.
595	* @param pszTag Tag to validate.
596	*/
597	static bool vmmdevReqIsValidPublisherTag(const char *pszTag)
598	{
599	/* Note! This character set is also found in Config.kmk. */
600	static char const s_szValidChars[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz()[]{}+-.,";
601
602	while (*pszTag != '\0')
603	{
604	if (!strchr(s_szValidChars, *pszTag))
605	return false;
606	pszTag++;
607	}
608	return true;
609	}
610
611
612	/**
613	* Validates a build tag.
614	*
615	* @returns true / false.
616	* @param pszTag Tag to validate.
617	*/
618	static bool vmmdevReqIsValidBuildTag(const char *pszTag)
619	{
620	int cchPrefix;
621	if (!strncmp(pszTag, "RC", 2))
622	cchPrefix = 2;
623	else if (!strncmp(pszTag, "BETA", 4))
624	cchPrefix = 4;
625	else if (!strncmp(pszTag, "ALPHA", 5))
626	cchPrefix = 5;
627	else
628	return false;
629
630	if (pszTag[cchPrefix] == '\0')
631	return true;
632
633	uint8_t u8;
634	int rc = RTStrToUInt8Full(&pszTag[cchPrefix], 10, &u8);
635	return rc == VINF_SUCCESS;
636	}
637
638
639	/**
640	* Handles VMMDevReq_ReportGuestInfo2.
641	*
642	* @returns VBox status code that the guest should see.
643	* @param pThis The VMMDev instance data.
644	* @param pReqHdr The header of the request to handle.
645	*/
646	static int vmmdevReqHandler_ReportGuestInfo2(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
647	{
648	AssertMsgReturn(pReqHdr->size == sizeof(VMMDevReportGuestInfo2), ("%u\n", pReqHdr->size), VERR_INVALID_PARAMETER);
649	VBoxGuestInfo2 const pInfo2 = &((VMMDevReportGuestInfo2 )pReqHdr)->guestInfo;
650
651	LogRel(("VMMDev: Guest Additions information report: Version %d.%d.%d r%d '%.*s'\n",
652	pInfo2->additionsMajor, pInfo2->additionsMinor, pInfo2->additionsBuild,
653	pInfo2->additionsRevision, sizeof(pInfo2->szName), pInfo2->szName));
654
655	/* The interface was introduced in 3.2 and will definitely not be
656	backported beyond 3.0 (bird). */
657	AssertMsgReturn(pInfo2->additionsMajor >= 3,
658	("%u.%u.%u\n", pInfo2->additionsMajor, pInfo2->additionsMinor, pInfo2->additionsBuild),
659	VERR_INVALID_PARAMETER);
660
661	/* The version must fit in a full version compression. */
662	uint32_t uFullVersion = VBOX_FULL_VERSION_MAKE(pInfo2->additionsMajor, pInfo2->additionsMinor, pInfo2->additionsBuild);
663	AssertMsgReturn( VBOX_FULL_VERSION_GET_MAJOR(uFullVersion) == pInfo2->additionsMajor
664	&& VBOX_FULL_VERSION_GET_MINOR(uFullVersion) == pInfo2->additionsMinor
665	&& VBOX_FULL_VERSION_GET_BUILD(uFullVersion) == pInfo2->additionsBuild,
666	("%u.%u.%u\n", pInfo2->additionsMajor, pInfo2->additionsMinor, pInfo2->additionsBuild),
667	VERR_OUT_OF_RANGE);
668
669	/*
670	* Validate the name.
671	* Be less strict towards older additions (< v4.1.50).
672	*/
673	AssertCompile(sizeof(pThis->guestInfo2.szName) == sizeof(pInfo2->szName));
674	AssertReturn(RTStrEnd(pInfo2->szName, sizeof(pInfo2->szName)) != NULL, VERR_INVALID_PARAMETER);
675	const char *pszName = pInfo2->szName;
676
677	/* The version number which shouldn't be there. */
678	char szTmp[sizeof(pInfo2->szName)];
679	size_t cchStart = RTStrPrintf(szTmp, sizeof(szTmp), "%u.%u.%u", pInfo2->additionsMajor, pInfo2->additionsMinor, pInfo2->additionsBuild);
680	AssertMsgReturn(!strncmp(pszName, szTmp, cchStart), ("%s != %s\n", pszName, szTmp), VERR_INVALID_PARAMETER);
681	pszName += cchStart;
682
683	/* Now we can either have nothing or a build tag or/and a publisher tag. */
684	if (*pszName != '\0')
685	{
686	const char *pszRelaxedName = "";
687	bool const fStrict = pInfo2->additionsMajor > 4
688	\|\| (pInfo2->additionsMajor == 4 && pInfo2->additionsMinor > 1)
689	\|\| (pInfo2->additionsMajor == 4 && pInfo2->additionsMinor == 1 && pInfo2->additionsBuild >= 50);
690	bool fOk = false;
691	if (*pszName == '_')
692	{
693	pszName++;
694	strcpy(szTmp, pszName);
695	char *pszTag2 = strchr(szTmp, '_');
696	if (!pszTag2)
697	{
698	fOk = vmmdevReqIsValidBuildTag(szTmp)
699	\|\| vmmdevReqIsValidPublisherTag(szTmp);
700	}
701	else
702	{
703	*pszTag2++ = '\0';
704	fOk = vmmdevReqIsValidBuildTag(szTmp);
705	if (fOk)
706	{
707	fOk = vmmdevReqIsValidPublisherTag(pszTag2);
708	if (!fOk)
709	pszRelaxedName = szTmp;
710	}
711	}
712	}
713
714	if (!fOk)
715	{
716	AssertLogRelMsgReturn(!fStrict, ("%s", pszName), VERR_INVALID_PARAMETER);
717
718	/* non-strict mode, just zap the extra stuff. */
719	LogRel(("VMMDev: ReportGuestInfo2: Ignoring unparsable version name bits: '%s' -> '%s'.\n", pszName, pszRelaxedName));
720	pszName = pszRelaxedName;
721	}
722	}
723
724	/*
725	* Save the info and tell Main or whoever is listening.
726	*/
727	pThis->guestInfo2.uFullVersion = uFullVersion;
728	pThis->guestInfo2.uRevision = pInfo2->additionsRevision;
729	pThis->guestInfo2.fFeatures = pInfo2->additionsFeatures;
730	strcpy(pThis->guestInfo2.szName, pszName);
731
732	if (pThis->pDrv && pThis->pDrv->pfnUpdateGuestInfo2)
733	pThis->pDrv->pfnUpdateGuestInfo2(pThis->pDrv, uFullVersion, pszName, pInfo2->additionsRevision, pInfo2->additionsFeatures);
734
735	/* Clear our IRQ in case it was high for whatever reason. */
736	PDMDevHlpPCISetIrqNoWait(pThis->pDevInsR3, 0, 0);
737
738	return VINF_SUCCESS;
739	}
740
741
742	/**
743	* Allocates a new facility status entry, initializing it to inactive.
744	*
745	* @returns Pointer to a facility status entry on success, NULL on failure
746	* (table full).
747	* @param pThis The VMMDev instance data.
748	* @param enmFacility The facility type code.
749	* @param fFixed This is set when allocating the standard entries
750	* from the constructor.
751	* @param pTimeSpecNow Optionally giving the entry timestamp to use (ctor).
752	*/
753	static PVMMDEVFACILITYSTATUSENTRY
754	vmmdevAllocFacilityStatusEntry(PVMMDEV pThis, VBoxGuestFacilityType enmFacility, bool fFixed, PCRTTIMESPEC pTimeSpecNow)
755	{
756	/* If full, expunge one inactive entry. */
757	if (pThis->cFacilityStatuses == RT_ELEMENTS(pThis->aFacilityStatuses))
758	{
759	uint32_t i = pThis->cFacilityStatuses;
760	while (i-- > 0)
761	{
762	if ( pThis->aFacilityStatuses[i].enmStatus == VBoxGuestFacilityStatus_Inactive
763	&& !pThis->aFacilityStatuses[i].fFixed)
764	{
765	pThis->cFacilityStatuses--;
766	int cToMove = pThis->cFacilityStatuses - i;
767	if (cToMove)
768	memmove(&pThis->aFacilityStatuses[i], &pThis->aFacilityStatuses[i + 1],
769	cToMove * sizeof(pThis->aFacilityStatuses[i]));
770	RT_ZERO(pThis->aFacilityStatuses[pThis->cFacilityStatuses]);
771	break;
772	}
773	}
774
775	if (pThis->cFacilityStatuses == RT_ELEMENTS(pThis->aFacilityStatuses))
776	return NULL;
777	}
778
779	/* Find location in array (it's sorted). */
780	uint32_t i = pThis->cFacilityStatuses;
781	while (i-- > 0)
782	if ((uint32_t)pThis->aFacilityStatuses[i].enmFacility < (uint32_t)enmFacility)
783	break;
784	i++;
785
786	/* Move. */
787	int cToMove = pThis->cFacilityStatuses - i;
788	if (cToMove > 0)
789	memmove(&pThis->aFacilityStatuses[i + 1], &pThis->aFacilityStatuses[i],
790	cToMove * sizeof(pThis->aFacilityStatuses[i]));
791	pThis->cFacilityStatuses++;
792
793	/* Initialize. */
794	pThis->aFacilityStatuses[i].enmFacility = enmFacility;
795	pThis->aFacilityStatuses[i].enmStatus = VBoxGuestFacilityStatus_Inactive;
796	pThis->aFacilityStatuses[i].fFixed = fFixed;
797	pThis->aFacilityStatuses[i].afPadding[0] = 0;
798	pThis->aFacilityStatuses[i].afPadding[1] = 0;
799	pThis->aFacilityStatuses[i].afPadding[2] = 0;
800	pThis->aFacilityStatuses[i].fFlags = 0;
801	if (pTimeSpecNow)
802	pThis->aFacilityStatuses[i].TimeSpecTS = *pTimeSpecNow;
803	else
804	RTTimeSpecSetNano(&pThis->aFacilityStatuses[i].TimeSpecTS, 0);
805
806	return &pThis->aFacilityStatuses[i];
807	}
808
809
810	/**
811	* Gets a facility status entry, allocating a new one if not already present.
812	*
813	* @returns Pointer to a facility status entry on success, NULL on failure
814	* (table full).
815	* @param pThis The VMMDev instance data.
816	* @param enmFacility The facility type code.
817	*/
818	static PVMMDEVFACILITYSTATUSENTRY vmmdevGetFacilityStatusEntry(PVMMDEV pThis, VBoxGuestFacilityType enmFacility)
819	{
820	/** @todo change to binary search. */
821	uint32_t i = pThis->cFacilityStatuses;
822	while (i-- > 0)
823	{
824	if (pThis->aFacilityStatuses[i].enmFacility == enmFacility)
825	return &pThis->aFacilityStatuses[i];
826	if ((uint32_t)pThis->aFacilityStatuses[i].enmFacility < (uint32_t)enmFacility)
827	break;
828	}
829	return vmmdevAllocFacilityStatusEntry(pThis, enmFacility, false /fFixed/, NULL);
830	}
831
832
833	/**
834	* Handles VMMDevReq_ReportGuestStatus.
835	*
836	* @returns VBox status code that the guest should see.
837	* @param pThis The VMMDev instance data.
838	* @param pReqHdr The header of the request to handle.
839	*/
840	static int vmmdevReqHandler_ReportGuestStatus(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
841	{
842	/*
843	* Validate input.
844	*/
845	AssertMsgReturn(pReqHdr->size == sizeof(VMMDevReportGuestStatus), ("%u\n", pReqHdr->size), VERR_INVALID_PARAMETER);
846	VBoxGuestStatus pStatus = &((VMMDevReportGuestStatus )pReqHdr)->guestStatus;
847	AssertMsgReturn( pStatus->facility > VBoxGuestFacilityType_Unknown
848	&& pStatus->facility <= VBoxGuestFacilityType_All,
849	("%d\n", pStatus->facility),
850	VERR_INVALID_PARAMETER);
851	AssertMsgReturn(pStatus->status == (VBoxGuestFacilityStatus)(uint16_t)pStatus->status,
852	("%#x (%u)\n", pStatus->status, pStatus->status),
853	VERR_OUT_OF_RANGE);
854
855	/*
856	* Do the update.
857	*/
858	RTTIMESPEC Now;
859	RTTimeNow(&Now);
860	if (pStatus->facility == VBoxGuestFacilityType_All)
861	{
862	uint32_t i = pThis->cFacilityStatuses;
863	while (i-- > 0)
864	{
865	pThis->aFacilityStatuses[i].TimeSpecTS = Now;
866	pThis->aFacilityStatuses[i].enmStatus = pStatus->status;
867	pThis->aFacilityStatuses[i].fFlags = pStatus->flags;
868	}
869	}
870	else
871	{
872	PVMMDEVFACILITYSTATUSENTRY pEntry = vmmdevGetFacilityStatusEntry(pThis, pStatus->facility);
873	if (!pEntry)
874	{
875	LogRelMax(10, ("VMMDev: Facility table is full - facility=%u status=%u\n", pStatus->facility, pStatus->status));
876	return VERR_OUT_OF_RESOURCES;
877	}
878
879	pEntry->TimeSpecTS = Now;
880	pEntry->enmStatus = pStatus->status;
881	pEntry->fFlags = pStatus->flags;
882	}
883
884	if (pThis->pDrv && pThis->pDrv->pfnUpdateGuestStatus)
885	pThis->pDrv->pfnUpdateGuestStatus(pThis->pDrv, pStatus->facility, pStatus->status, pStatus->flags, &Now);
886
887	return VINF_SUCCESS;
888	}
889
890
891	/**
892	* Handles VMMDevReq_ReportGuestUserState.
893	*
894	* @returns VBox status code that the guest should see.
895	* @param pThis The VMMDev instance data.
896	* @param pReqHdr The header of the request to handle.
897	*/
898	static int vmmdevReqHandler_ReportGuestUserState(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
899	{
900	/*
901	* Validate input.
902	*/
903	VMMDevReportGuestUserState pReq = (VMMDevReportGuestUserState )pReqHdr;
904	AssertMsgReturn(pReq->header.size >= sizeof(*pReq), ("%u\n", pReqHdr->size), VERR_INVALID_PARAMETER);
905
906	if ( pThis->pDrv
907	&& pThis->pDrv->pfnUpdateGuestUserState)
908	{
909	/* Play safe. */
910	AssertReturn(pReq->header.size <= _2K, VERR_TOO_MUCH_DATA);
911	AssertReturn(pReq->status.cbUser <= 256, VERR_TOO_MUCH_DATA);
912	AssertReturn(pReq->status.cbDomain <= 256, VERR_TOO_MUCH_DATA);
913	AssertReturn(pReq->status.cbDetails <= _1K, VERR_TOO_MUCH_DATA);
914
915	/* pbDynamic marks the beginning of the struct's dynamically
916	* allocated data area. */
917	uint8_t pbDynamic = (uint8_t )&pReq->status.szUser;
918	uint32_t cbLeft = pReqHdr->size - RT_UOFFSETOF(VMMDevReportGuestUserState, status.szUser);
919
920	/* The user. */
921	AssertReturn(pReq->status.cbUser > 0, VERR_INVALID_PARAMETER); /* User name is required. */
922	AssertReturn(pReq->status.cbUser <= cbLeft, VERR_INVALID_PARAMETER);
923	const char pszUser = (const char )pbDynamic;
924	AssertReturn(RTStrEnd(pszUser, pReq->status.cbUser), VERR_INVALID_PARAMETER);
925	int rc = RTStrValidateEncoding(pszUser);
926	AssertRCReturn(rc, rc);
927
928	/* Advance to the next field. */
929	pbDynamic += pReq->status.cbUser;
930	cbLeft -= pReq->status.cbUser;
931
932	/* pszDomain can be NULL. */
933	AssertReturn(pReq->status.cbDomain <= cbLeft, VERR_INVALID_PARAMETER);
934	const char *pszDomain = NULL;
935	if (pReq->status.cbDomain)
936	{
937	pszDomain = (const char *)pbDynamic;
938	AssertReturn(RTStrEnd(pszDomain, pReq->status.cbDomain), VERR_INVALID_PARAMETER);
939	rc = RTStrValidateEncoding(pszDomain);
940	AssertRCReturn(rc, rc);
941
942	/* Advance to the next field. */
943	pbDynamic += pReq->status.cbDomain;
944	cbLeft -= pReq->status.cbDomain;
945	}
946
947	/* pbDetails can be NULL. */
948	const uint8_t *pbDetails = NULL;
949	AssertReturn(pReq->status.cbDetails <= cbLeft, VERR_INVALID_PARAMETER);
950	if (pReq->status.cbDetails > 0)
951	pbDetails = pbDynamic;
952
953	pThis->pDrv->pfnUpdateGuestUserState(pThis->pDrv, pszUser, pszDomain, (uint32_t)pReq->status.state,
954	pbDetails, pReq->status.cbDetails);
955	}
956
957	return VINF_SUCCESS;
958	}
959
960
961	/**
962	* Handles VMMDevReq_ReportGuestCapabilities.
963	*
964	* @returns VBox status code that the guest should see.
965	* @param pThis The VMMDev instance data.
966	* @param pReqHdr The header of the request to handle.
967	*/
968	static int vmmdevReqHandler_ReportGuestCapabilities(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
969	{
970	VMMDevReqGuestCapabilities pReq = (VMMDevReqGuestCapabilities )pReqHdr;
971	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
972
973	/* Enable VMMDEV_GUEST_SUPPORTS_GRAPHICS automatically for guests using the old
974	* request to report their capabilities.
975	*/
976	const uint32_t fu32Caps = pReq->caps \| VMMDEV_GUEST_SUPPORTS_GRAPHICS;
977
978	if (pThis->guestCaps != fu32Caps)
979	{
980	/* make a copy of supplied information */
981	pThis->guestCaps = fu32Caps;
982
983	LogRel(("VMMDev: Guest Additions capability report (legacy): (0x%x) seamless: %s, hostWindowMapping: %s, graphics: yes\n",
984	fu32Caps,
985	fu32Caps & VMMDEV_GUEST_SUPPORTS_SEAMLESS ? "yes" : "no",
986	fu32Caps & VMMDEV_GUEST_SUPPORTS_GUEST_HOST_WINDOW_MAPPING ? "yes" : "no"));
987
988	if (pThis->pDrv && pThis->pDrv->pfnUpdateGuestCapabilities)
989	pThis->pDrv->pfnUpdateGuestCapabilities(pThis->pDrv, fu32Caps);
990	}
991	return VINF_SUCCESS;
992	}
993
994
995	/**
996	* Handles VMMDevReq_SetGuestCapabilities.
997	*
998	* @returns VBox status code that the guest should see.
999	* @param pThis The VMMDev instance data.
1000	* @param pReqHdr The header of the request to handle.
1001	*/
1002	static int vmmdevReqHandler_SetGuestCapabilities(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1003	{
1004	VMMDevReqGuestCapabilities2 pReq = (VMMDevReqGuestCapabilities2 )pReqHdr;
1005	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1006
1007	uint32_t fu32Caps = pThis->guestCaps;
1008	fu32Caps \|= pReq->u32OrMask;
1009	fu32Caps &= ~pReq->u32NotMask;
1010
1011	LogRel(("VMMDev: Guest Additions capability report: (%#x -> %#x) seamless: %s, hostWindowMapping: %s, graphics: %s\n",
1012	pThis->guestCaps, fu32Caps,
1013	fu32Caps & VMMDEV_GUEST_SUPPORTS_SEAMLESS ? "yes" : "no",
1014	fu32Caps & VMMDEV_GUEST_SUPPORTS_GUEST_HOST_WINDOW_MAPPING ? "yes" : "no",
1015	fu32Caps & VMMDEV_GUEST_SUPPORTS_GRAPHICS ? "yes" : "no"));
1016
1017	pThis->guestCaps = fu32Caps;
1018
1019	if (pThis->pDrv && pThis->pDrv->pfnUpdateGuestCapabilities)
1020	pThis->pDrv->pfnUpdateGuestCapabilities(pThis->pDrv, fu32Caps);
1021
1022	return VINF_SUCCESS;
1023	}
1024
1025
1026	/**
1027	* Handles VMMDevReq_GetMouseStatus.
1028	*
1029	* @returns VBox status code that the guest should see.
1030	* @param pThis The VMMDev instance data.
1031	* @param pReqHdr The header of the request to handle.
1032	*/
1033	static int vmmdevReqHandler_GetMouseStatus(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1034	{
1035	VMMDevReqMouseStatus pReq = (VMMDevReqMouseStatus )pReqHdr;
1036	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1037
1038	pReq->mouseFeatures = pThis->mouseCapabilities
1039	& VMMDEV_MOUSE_MASK;
1040	pReq->pointerXPos = pThis->mouseXAbs;
1041	pReq->pointerYPos = pThis->mouseYAbs;
1042	LogRel2(("VMMDev: vmmdevReqHandler_GetMouseStatus: mouseFeatures=%#x, xAbs=%d, yAbs=%d\n",
1043	pReq->mouseFeatures, pReq->pointerXPos, pReq->pointerYPos));
1044	return VINF_SUCCESS;
1045	}
1046
1047
1048	/**
1049	* Handles VMMDevReq_SetMouseStatus.
1050	*
1051	* @returns VBox status code that the guest should see.
1052	* @param pThis The VMMDev instance data.
1053	* @param pReqHdr The header of the request to handle.
1054	*/
1055	static int vmmdevReqHandler_SetMouseStatus(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1056	{
1057	VMMDevReqMouseStatus pReq = (VMMDevReqMouseStatus )pReqHdr;
1058	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1059
1060	LogRelFlow(("VMMDev: vmmdevReqHandler_SetMouseStatus: mouseFeatures=%#x\n", pReq->mouseFeatures));
1061
1062	bool fNotify = false;
1063	if ( (pReq->mouseFeatures & VMMDEV_MOUSE_NOTIFY_HOST_MASK)
1064	!= ( pThis->mouseCapabilities
1065	& VMMDEV_MOUSE_NOTIFY_HOST_MASK))
1066	fNotify = true;
1067
1068	pThis->mouseCapabilities &= ~VMMDEV_MOUSE_GUEST_MASK;
1069	pThis->mouseCapabilities \|= (pReq->mouseFeatures & VMMDEV_MOUSE_GUEST_MASK);
1070
1071	LogRelFlow(("VMMDev: vmmdevReqHandler_SetMouseStatus: New host capabilities: %#x\n", pThis->mouseCapabilities));
1072
1073	/*
1074	* Notify connector if something changed.
1075	*/
1076	if (fNotify)
1077	{
1078	LogRelFlow(("VMMDev: vmmdevReqHandler_SetMouseStatus: Notifying connector\n"));
1079	pThis->pDrv->pfnUpdateMouseCapabilities(pThis->pDrv, pThis->mouseCapabilities);
1080	}
1081
1082	return VINF_SUCCESS;
1083	}
1084
1085	static int vmmdevVerifyPointerShape(VMMDevReqMousePointer *pReq)
1086	{
1087	/* Should be enough for most mouse pointers. */
1088	if (pReq->width > 8192 \|\| pReq->height > 8192)
1089	return VERR_INVALID_PARAMETER;
1090
1091	uint32_t cbShape = (pReq->width + 7) / 8 * pReq->height; /* size of the AND mask */
1092	cbShape = ((cbShape + 3) & ~3) + pReq->width * 4 * pReq->height; /* + gap + size of the XOR mask */
1093	if (RT_UOFFSETOF(VMMDevReqMousePointer, pointerData) + cbShape > pReq->header.size)
1094	return VERR_INVALID_PARAMETER;
1095
1096	return VINF_SUCCESS;
1097	}
1098
1099	/**
1100	* Handles VMMDevReq_SetPointerShape.
1101	*
1102	* @returns VBox status code that the guest should see.
1103	* @param pThis The VMMDev instance data.
1104	* @param pReqHdr The header of the request to handle.
1105	*/
1106	static int vmmdevReqHandler_SetPointerShape(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1107	{
1108	VMMDevReqMousePointer pReq = (VMMDevReqMousePointer )pReqHdr;
1109	if (pReq->header.size < sizeof(*pReq))
1110	{
1111	AssertMsg(pReq->header.size == 0x10028 && pReq->header.version == 10000, /* don't complain about legacy!!! */
1112	("VMMDev mouse shape structure has invalid size %d (%#x) version=%d!\n",
1113	pReq->header.size, pReq->header.size, pReq->header.version));
1114	return VERR_INVALID_PARAMETER;
1115	}
1116
1117	bool fVisible = RT_BOOL(pReq->fFlags & VBOX_MOUSE_POINTER_VISIBLE);
1118	bool fAlpha = RT_BOOL(pReq->fFlags & VBOX_MOUSE_POINTER_ALPHA);
1119	bool fShape = RT_BOOL(pReq->fFlags & VBOX_MOUSE_POINTER_SHAPE);
1120
1121	Log(("VMMDevReq_SetPointerShape: visible: %d, alpha: %d, shape = %d, width: %d, height: %d\n",
1122	fVisible, fAlpha, fShape, pReq->width, pReq->height));
1123
1124	if (pReq->header.size == sizeof(VMMDevReqMousePointer))
1125	{
1126	/* The guest did not provide the shape actually. */
1127	fShape = false;
1128	}
1129
1130	/* forward call to driver */
1131	if (fShape)
1132	{
1133	int rc = vmmdevVerifyPointerShape(pReq);
1134	if (RT_FAILURE(rc))
1135	return rc;
1136
1137	pThis->pDrv->pfnUpdatePointerShape(pThis->pDrv,
1138	fVisible,
1139	fAlpha,
1140	pReq->xHot, pReq->yHot,
1141	pReq->width, pReq->height,
1142	pReq->pointerData);
1143	}
1144	else
1145	{
1146	pThis->pDrv->pfnUpdatePointerShape(pThis->pDrv,
1147	fVisible,
1148	0,
1149	0, 0,
1150	0, 0,
1151	NULL);
1152	}
1153
1154	pThis->fHostCursorRequested = fVisible;
1155	return VINF_SUCCESS;
1156	}
1157
1158
1159	/**
1160	* Handles VMMDevReq_GetHostTime.
1161	*
1162	* @returns VBox status code that the guest should see.
1163	* @param pThis The VMMDev instance data.
1164	* @param pReqHdr The header of the request to handle.
1165	*/
1166	static int vmmdevReqHandler_GetHostTime(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1167	{
1168	VMMDevReqHostTime pReq = (VMMDevReqHostTime )pReqHdr;
1169	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1170
1171	if (RT_LIKELY(!pThis->fGetHostTimeDisabled))
1172	{
1173	RTTIMESPEC now;
1174	pReq->time = RTTimeSpecGetMilli(PDMDevHlpTMUtcNow(pThis->pDevInsR3, &now));
1175	return VINF_SUCCESS;
1176	}
1177	return VERR_NOT_SUPPORTED;
1178	}
1179
1180
1181	/**
1182	* Handles VMMDevReq_GetHypervisorInfo.
1183	*
1184	* @returns VBox status code that the guest should see.
1185	* @param pThis The VMMDev instance data.
1186	* @param pReqHdr The header of the request to handle.
1187	*/
1188	static int vmmdevReqHandler_GetHypervisorInfo(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1189	{
1190	VMMDevReqHypervisorInfo pReq = (VMMDevReqHypervisorInfo )pReqHdr;
1191	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1192
1193	return PGMR3MappingsSize(PDMDevHlpGetVM(pThis->pDevInsR3), &pReq->hypervisorSize);
1194	}
1195
1196
1197	/**
1198	* Handles VMMDevReq_SetHypervisorInfo.
1199	*
1200	* @returns VBox status code that the guest should see.
1201	* @param pThis The VMMDev instance data.
1202	* @param pReqHdr The header of the request to handle.
1203	*/
1204	static int vmmdevReqHandler_SetHypervisorInfo(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1205	{
1206	VMMDevReqHypervisorInfo pReq = (VMMDevReqHypervisorInfo )pReqHdr;
1207	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1208
1209	int rc;
1210	PVM pVM = PDMDevHlpGetVM(pThis->pDevInsR3);
1211	if (pReq->hypervisorStart == 0)
1212	rc = PGMR3MappingsUnfix(pVM);
1213	else
1214	{
1215	/* only if the client has queried the size before! */
1216	uint32_t cbMappings;
1217	rc = PGMR3MappingsSize(pVM, &cbMappings);
1218	if (RT_SUCCESS(rc) && pReq->hypervisorSize == cbMappings)
1219	{
1220	/* new reservation */
1221	rc = PGMR3MappingsFix(pVM, pReq->hypervisorStart, pReq->hypervisorSize);
1222	LogRel(("VMMDev: Guest reported fixed hypervisor window at 0%010x LB %#x (rc=%Rrc)\n",
1223	pReq->hypervisorStart, pReq->hypervisorSize, rc));
1224	}
1225	else if (RT_FAILURE(rc))
1226	rc = VERR_TRY_AGAIN;
1227	}
1228	return rc;
1229	}
1230
1231
1232	/**
1233	* Handles VMMDevReq_RegisterPatchMemory.
1234	*
1235	* @returns VBox status code that the guest should see.
1236	* @param pThis The VMMDev instance data.
1237	* @param pReqHdr The header of the request to handle.
1238	*/
1239	static int vmmdevReqHandler_RegisterPatchMemory(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1240	{
1241	VMMDevReqPatchMemory pReq = (VMMDevReqPatchMemory )pReqHdr;
1242	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1243
1244	return VMMR3RegisterPatchMemory(PDMDevHlpGetVM(pThis->pDevInsR3), pReq->pPatchMem, pReq->cbPatchMem);
1245	}
1246
1247
1248	/**
1249	* Handles VMMDevReq_DeregisterPatchMemory.
1250	*
1251	* @returns VBox status code that the guest should see.
1252	* @param pThis The VMMDev instance data.
1253	* @param pReqHdr The header of the request to handle.
1254	*/
1255	static int vmmdevReqHandler_DeregisterPatchMemory(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1256	{
1257	VMMDevReqPatchMemory pReq = (VMMDevReqPatchMemory )pReqHdr;
1258	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1259
1260	return VMMR3DeregisterPatchMemory(PDMDevHlpGetVM(pThis->pDevInsR3), pReq->pPatchMem, pReq->cbPatchMem);
1261	}
1262
1263
1264	/**
1265	* Handles VMMDevReq_SetPowerStatus.
1266	*
1267	* @returns VBox status code that the guest should see.
1268	* @param pThis The VMMDev instance data.
1269	* @param pReqHdr The header of the request to handle.
1270	*/
1271	static int vmmdevReqHandler_SetPowerStatus(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1272	{
1273	VMMDevPowerStateRequest pReq = (VMMDevPowerStateRequest )pReqHdr;
1274	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1275
1276	switch (pReq->powerState)
1277	{
1278	case VMMDevPowerState_Pause:
1279	{
1280	LogRel(("VMMDev: Guest requests the VM to be suspended (paused)\n"));
1281	return PDMDevHlpVMSuspend(pThis->pDevInsR3);
1282	}
1283
1284	case VMMDevPowerState_PowerOff:
1285	{
1286	LogRel(("VMMDev: Guest requests the VM to be turned off\n"));
1287	return PDMDevHlpVMPowerOff(pThis->pDevInsR3);
1288	}
1289
1290	case VMMDevPowerState_SaveState:
1291	{
1292	if (true /pThis->fAllowGuestToSaveState/)
1293	{
1294	LogRel(("VMMDev: Guest requests the VM to be saved and powered off\n"));
1295	return PDMDevHlpVMSuspendSaveAndPowerOff(pThis->pDevInsR3);
1296	}
1297	LogRel(("VMMDev: Guest requests the VM to be saved and powered off, declined\n"));
1298	return VERR_ACCESS_DENIED;
1299	}
1300
1301	default:
1302	AssertMsgFailed(("VMMDev: Invalid power state request: %d\n", pReq->powerState));
1303	return VERR_INVALID_PARAMETER;
1304	}
1305	}
1306
1307
1308	/**
1309	* Handles VMMDevReq_GetDisplayChangeRequest
1310	*
1311	* @returns VBox status code that the guest should see.
1312	* @param pThis The VMMDev instance data.
1313	* @param pReqHdr The header of the request to handle.
1314	* @remarks Deprecated.
1315	*/
1316	static int vmmdevReqHandler_GetDisplayChangeRequest(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1317	{
1318	VMMDevDisplayChangeRequest pReq = (VMMDevDisplayChangeRequest )pReqHdr;
1319	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1320
1321	/**
1322	* @todo It looks like a multi-monitor guest which only uses
1323	* @c VMMDevReq_GetDisplayChangeRequest (not the *2 version) will get
1324	* into a @c VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST event loop if it tries
1325	* to acknowlege host requests for additional monitors. Should the loop
1326	* which checks for those requests be removed?
1327	*/
1328
1329	DISPLAYCHANGEREQUEST *pDispRequest = &pThis->displayChangeData.aRequests[0];
1330
1331	if (pReq->eventAck == VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST)
1332	{
1333	/* Current request has been read at least once. */
1334	pDispRequest->fPending = false;
1335
1336	/* Check if there are more pending requests. */
1337	for (unsigned i = 1; i < RT_ELEMENTS(pThis->displayChangeData.aRequests); i++)
1338	{
1339	if (pThis->displayChangeData.aRequests[i].fPending)
1340	{
1341	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST);
1342	break;
1343	}
1344	}
1345
1346	/* Remember which resolution the client has queried, subsequent reads
1347	* will return the same values. */
1348	pDispRequest->lastReadDisplayChangeRequest = pDispRequest->displayChangeRequest;
1349	pThis->displayChangeData.fGuestSentChangeEventAck = true;
1350	}
1351
1352	/* If not a response to a VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST, just
1353	* read the last valid video mode hint. This happens when the guest X server
1354	* determines the initial mode. */
1355	VMMDevDisplayDef const *pDisplayDef = pThis->displayChangeData.fGuestSentChangeEventAck ?
1356	&pDispRequest->lastReadDisplayChangeRequest :
1357	&pDispRequest->displayChangeRequest;
1358	pReq->xres = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_CX) ? pDisplayDef->cx : 0;
1359	pReq->yres = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_CY) ? pDisplayDef->cy : 0;
1360	pReq->bpp = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_BPP) ? pDisplayDef->cBitsPerPixel : 0;
1361
1362	Log(("VMMDev: returning display change request xres = %d, yres = %d, bpp = %d\n", pReq->xres, pReq->yres, pReq->bpp));
1363
1364	return VINF_SUCCESS;
1365	}
1366
1367
1368	/**
1369	* Handles VMMDevReq_GetDisplayChangeRequest2.
1370	*
1371	* @returns VBox status code that the guest should see.
1372	* @param pThis The VMMDev instance data.
1373	* @param pReqHdr The header of the request to handle.
1374	*/
1375	static int vmmdevReqHandler_GetDisplayChangeRequest2(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1376	{
1377	VMMDevDisplayChangeRequest2 pReq = (VMMDevDisplayChangeRequest2 )pReqHdr;
1378	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1379
1380	DISPLAYCHANGEREQUEST *pDispRequest = NULL;
1381
1382	if (pReq->eventAck == VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST)
1383	{
1384	/* Select a pending request to report. */
1385	unsigned i;
1386	for (i = 0; i < RT_ELEMENTS(pThis->displayChangeData.aRequests); i++)
1387	{
1388	if (pThis->displayChangeData.aRequests[i].fPending)
1389	{
1390	pDispRequest = &pThis->displayChangeData.aRequests[i];
1391	/* Remember which request should be reported. */
1392	pThis->displayChangeData.iCurrentMonitor = i;
1393	Log3(("VMMDev: will report pending request for %u\n", i));
1394	break;
1395	}
1396	}
1397
1398	/* Check if there are more pending requests. */
1399	i++;
1400	for (; i < RT_ELEMENTS(pThis->displayChangeData.aRequests); i++)
1401	{
1402	if (pThis->displayChangeData.aRequests[i].fPending)
1403	{
1404	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST);
1405	Log3(("VMMDev: another pending at %u\n", i));
1406	break;
1407	}
1408	}
1409
1410	if (pDispRequest)
1411	{
1412	/* Current request has been read at least once. */
1413	pDispRequest->fPending = false;
1414
1415	/* Remember which resolution the client has queried, subsequent reads
1416	* will return the same values. */
1417	pDispRequest->lastReadDisplayChangeRequest = pDispRequest->displayChangeRequest;
1418	pThis->displayChangeData.fGuestSentChangeEventAck = true;
1419	}
1420	else
1421	{
1422	Log3(("VMMDev: no pending request!!!\n"));
1423	}
1424	}
1425
1426	if (!pDispRequest)
1427	{
1428	Log3(("VMMDev: default to %d\n", pThis->displayChangeData.iCurrentMonitor));
1429	pDispRequest = &pThis->displayChangeData.aRequests[pThis->displayChangeData.iCurrentMonitor];
1430	}
1431
1432	/* If not a response to a VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST, just
1433	* read the last valid video mode hint. This happens when the guest X server
1434	* determines the initial mode. */
1435	VMMDevDisplayDef const *pDisplayDef = pThis->displayChangeData.fGuestSentChangeEventAck ?
1436	&pDispRequest->lastReadDisplayChangeRequest :
1437	&pDispRequest->displayChangeRequest;
1438	pReq->xres = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_CX) ? pDisplayDef->cx : 0;
1439	pReq->yres = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_CY) ? pDisplayDef->cy : 0;
1440	pReq->bpp = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_BPP) ? pDisplayDef->cBitsPerPixel : 0;
1441	pReq->display = pDisplayDef->idDisplay;
1442
1443	Log(("VMMDev: returning display change request xres = %d, yres = %d, bpp = %d at %d\n",
1444	pReq->xres, pReq->yres, pReq->bpp, pReq->display));
1445
1446	return VINF_SUCCESS;
1447	}
1448
1449
1450	/**
1451	* Handles VMMDevReq_GetDisplayChangeRequestEx.
1452	*
1453	* @returns VBox status code that the guest should see.
1454	* @param pThis The VMMDev instance data.
1455	* @param pReqHdr The header of the request to handle.
1456	*/
1457	static int vmmdevReqHandler_GetDisplayChangeRequestEx(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1458	{
1459	VMMDevDisplayChangeRequestEx pReq = (VMMDevDisplayChangeRequestEx )pReqHdr;
1460	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1461
1462	DISPLAYCHANGEREQUEST *pDispRequest = NULL;
1463
1464	if (pReq->eventAck == VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST)
1465	{
1466	/* Select a pending request to report. */
1467	unsigned i;
1468	for (i = 0; i < RT_ELEMENTS(pThis->displayChangeData.aRequests); i++)
1469	{
1470	if (pThis->displayChangeData.aRequests[i].fPending)
1471	{
1472	pDispRequest = &pThis->displayChangeData.aRequests[i];
1473	/* Remember which request should be reported. */
1474	pThis->displayChangeData.iCurrentMonitor = i;
1475	Log3(("VMMDev: will report pending request for %d\n",
1476	i));
1477	break;
1478	}
1479	}
1480
1481	/* Check if there are more pending requests. */
1482	i++;
1483	for (; i < RT_ELEMENTS(pThis->displayChangeData.aRequests); i++)
1484	{
1485	if (pThis->displayChangeData.aRequests[i].fPending)
1486	{
1487	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST);
1488	Log3(("VMMDev: another pending at %d\n",
1489	i));
1490	break;
1491	}
1492	}
1493
1494	if (pDispRequest)
1495	{
1496	/* Current request has been read at least once. */
1497	pDispRequest->fPending = false;
1498
1499	/* Remember which resolution the client has queried, subsequent reads
1500	* will return the same values. */
1501	pDispRequest->lastReadDisplayChangeRequest = pDispRequest->displayChangeRequest;
1502	pThis->displayChangeData.fGuestSentChangeEventAck = true;
1503	}
1504	else
1505	{
1506	Log3(("VMMDev: no pending request!!!\n"));
1507	}
1508	}
1509
1510	if (!pDispRequest)
1511	{
1512	Log3(("VMMDev: default to %d\n",
1513	pThis->displayChangeData.iCurrentMonitor));
1514	pDispRequest = &pThis->displayChangeData.aRequests[pThis->displayChangeData.iCurrentMonitor];
1515	}
1516
1517	/* If not a response to a VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST, just
1518	* read the last valid video mode hint. This happens when the guest X server
1519	* determines the initial mode. */
1520	VMMDevDisplayDef const *pDisplayDef = pThis->displayChangeData.fGuestSentChangeEventAck ?
1521	&pDispRequest->lastReadDisplayChangeRequest :
1522	&pDispRequest->displayChangeRequest;
1523	pReq->xres = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_CX) ? pDisplayDef->cx : 0;
1524	pReq->yres = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_CY) ? pDisplayDef->cy : 0;
1525	pReq->bpp = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_BPP) ? pDisplayDef->cBitsPerPixel : 0;
1526	pReq->display = pDisplayDef->idDisplay;
1527	pReq->cxOrigin = pDisplayDef->xOrigin;
1528	pReq->cyOrigin = pDisplayDef->yOrigin;
1529	pReq->fEnabled = !RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_DISABLED);
1530	pReq->fChangeOrigin = RT_BOOL(pDisplayDef->fDisplayFlags & VMMDEV_DISPLAY_ORIGIN);
1531
1532	Log(("VMMDevEx: returning display change request xres = %d, yres = %d, bpp = %d id %d xPos = %d, yPos = %d & Enabled=%d\n",
1533	pReq->xres, pReq->yres, pReq->bpp, pReq->display, pReq->cxOrigin, pReq->cyOrigin, pReq->fEnabled));
1534
1535	return VINF_SUCCESS;
1536	}
1537
1538
1539	/**
1540	* Handles VMMDevReq_GetDisplayChangeRequestMulti.
1541	*
1542	* @returns VBox status code that the guest should see.
1543	* @param pThis The VMMDev instance data.
1544	* @param pReqHdr The header of the request to handle.
1545	*/
1546	static int vmmdevReqHandler_GetDisplayChangeRequestMulti(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1547	{
1548	VMMDevDisplayChangeRequestMulti pReq = (VMMDevDisplayChangeRequestMulti )pReqHdr;
1549	unsigned i;
1550
1551	ASSERT_GUEST_MSG_RETURN(pReq->header.size >= sizeof(*pReq),
1552	("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1553	RT_UNTRUSTED_VALIDATED_FENCE();
1554
1555	uint32_t const cDisplays = pReq->cDisplays;
1556	ASSERT_GUEST_MSG_RETURN(cDisplays > 0 && cDisplays <= RT_ELEMENTS(pThis->displayChangeData.aRequests),
1557	("cDisplays %u\n", cDisplays), VERR_INVALID_PARAMETER);
1558	RT_UNTRUSTED_VALIDATED_FENCE();
1559
1560	ASSERT_GUEST_MSG_RETURN(pReq->header.size >= sizeof(pReq) + (cDisplays - 1) sizeof(VMMDevDisplayDef),
1561	("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1562	RT_UNTRUSTED_VALIDATED_FENCE();
1563
1564	if (pReq->eventAck == VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST)
1565	{
1566	uint32_t cDisplaysOut = 0;
1567	/* Remember which resolution the client has queried, subsequent reads
1568	* will return the same values. */
1569	for (i = 0; i < RT_ELEMENTS(pThis->displayChangeData.aRequests); ++i)
1570	{
1571	DISPLAYCHANGEREQUEST *pDCR = &pThis->displayChangeData.aRequests[i];
1572
1573	pDCR->lastReadDisplayChangeRequest = pDCR->displayChangeRequest;
1574
1575	if (pDCR->fPending)
1576	{
1577	if (cDisplaysOut < cDisplays)
1578	pReq->aDisplays[cDisplaysOut] = pDCR->lastReadDisplayChangeRequest;
1579
1580	cDisplaysOut++;
1581	pDCR->fPending = false;
1582	}
1583	}
1584
1585	pReq->cDisplays = cDisplaysOut;
1586	pThis->displayChangeData.fGuestSentChangeEventAck = true;
1587	}
1588	else
1589	{
1590	/* Fill the guest request with monitor layout data. */
1591	for (i = 0; i < cDisplays; ++i)
1592	{
1593	/* If not a response to a VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST, just
1594	* read the last valid video mode hint. This happens when the guest X server
1595	* determines the initial mode. */
1596	DISPLAYCHANGEREQUEST const *pDCR = &pThis->displayChangeData.aRequests[i];
1597	VMMDevDisplayDef const *pDisplayDef = pThis->displayChangeData.fGuestSentChangeEventAck ?
1598	&pDCR->lastReadDisplayChangeRequest :
1599	&pDCR->displayChangeRequest;
1600	pReq->aDisplays[i] = *pDisplayDef;
1601	}
1602	}
1603
1604	Log(("VMMDev: returning multimonitor display change request cDisplays %d\n", cDisplays));
1605
1606	return VINF_SUCCESS;
1607	}
1608
1609
1610	/**
1611	* Handles VMMDevReq_VideoModeSupported.
1612	*
1613	* Query whether the given video mode is supported.
1614	*
1615	* @returns VBox status code that the guest should see.
1616	* @param pThis The VMMDev instance data.
1617	* @param pReqHdr The header of the request to handle.
1618	*/
1619	static int vmmdevReqHandler_VideoModeSupported(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1620	{
1621	VMMDevVideoModeSupportedRequest pReq = (VMMDevVideoModeSupportedRequest )pReqHdr;
1622	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1623
1624	/* forward the call */
1625	return pThis->pDrv->pfnVideoModeSupported(pThis->pDrv,
1626	0, /* primary screen. */
1627	pReq->width,
1628	pReq->height,
1629	pReq->bpp,
1630	&pReq->fSupported);
1631	}
1632
1633
1634	/**
1635	* Handles VMMDevReq_VideoModeSupported2.
1636	*
1637	* Query whether the given video mode is supported for a specific display
1638	*
1639	* @returns VBox status code that the guest should see.
1640	* @param pThis The VMMDev instance data.
1641	* @param pReqHdr The header of the request to handle.
1642	*/
1643	static int vmmdevReqHandler_VideoModeSupported2(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1644	{
1645	VMMDevVideoModeSupportedRequest2 pReq = (VMMDevVideoModeSupportedRequest2 )pReqHdr;
1646	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1647
1648	/* forward the call */
1649	return pThis->pDrv->pfnVideoModeSupported(pThis->pDrv,
1650	pReq->display,
1651	pReq->width,
1652	pReq->height,
1653	pReq->bpp,
1654	&pReq->fSupported);
1655	}
1656
1657
1658
1659	/**
1660	* Handles VMMDevReq_GetHeightReduction.
1661	*
1662	* @returns VBox status code that the guest should see.
1663	* @param pThis The VMMDev instance data.
1664	* @param pReqHdr The header of the request to handle.
1665	*/
1666	static int vmmdevReqHandler_GetHeightReduction(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1667	{
1668	VMMDevGetHeightReductionRequest pReq = (VMMDevGetHeightReductionRequest )pReqHdr;
1669	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1670
1671	/* forward the call */
1672	return pThis->pDrv->pfnGetHeightReduction(pThis->pDrv, &pReq->heightReduction);
1673	}
1674
1675
1676	/**
1677	* Handles VMMDevReq_AcknowledgeEvents.
1678	*
1679	* @returns VBox status code that the guest should see.
1680	* @param pThis The VMMDev instance data.
1681	* @param pReqHdr The header of the request to handle.
1682	*/
1683	static int vmmdevReqHandler_AcknowledgeEvents(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1684	{
1685	VMMDevEvents pReq = (VMMDevEvents )pReqHdr;
1686	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1687	STAM_REL_COUNTER_INC(&pThis->StatSlowIrqAck);
1688
1689	if (!VMMDEV_INTERFACE_VERSION_IS_1_03(pThis))
1690	{
1691	/*
1692	* Note! This code is duplicated in vmmdevFastRequestIrqAck.
1693	*/
1694	if (pThis->fNewGuestFilterMask)
1695	{
1696	pThis->fNewGuestFilterMask = false;
1697	pThis->u32GuestFilterMask = pThis->u32NewGuestFilterMask;
1698	}
1699
1700	pReq->events = pThis->u32HostEventFlags & pThis->u32GuestFilterMask;
1701
1702	pThis->u32HostEventFlags &= ~pThis->u32GuestFilterMask;
1703	pThis->CTX_SUFF(pVMMDevRAM)->V.V1_04.fHaveEvents = false;
1704
1705	PDMDevHlpPCISetIrqNoWait(pThis->CTX_SUFF(pDevIns), 0, 0);
1706	}
1707	else
1708	vmmdevSetIRQ_Legacy(pThis);
1709	return VINF_SUCCESS;
1710	}
1711
1712
1713	/**
1714	* Handles VMMDevReq_CtlGuestFilterMask.
1715	*
1716	* @returns VBox status code that the guest should see.
1717	* @param pThis The VMMDev instance data.
1718	* @param pReqHdr The header of the request to handle.
1719	*/
1720	static int vmmdevReqHandler_CtlGuestFilterMask(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1721	{
1722	VMMDevCtlGuestFilterMask pReq = (VMMDevCtlGuestFilterMask )pReqHdr;
1723	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1724
1725	LogRelFlow(("VMMDev: vmmdevReqHandler_CtlGuestFilterMask: OR mask: %#x, NOT mask: %#x\n", pReq->u32OrMask, pReq->u32NotMask));
1726
1727	/* HGCM event notification is enabled by the VMMDev device
1728	* automatically when any HGCM command is issued. The guest
1729	* cannot disable these notifications. */
1730	VMMDevCtlSetGuestFilterMask(pThis, pReq->u32OrMask, pReq->u32NotMask & ~VMMDEV_EVENT_HGCM);
1731	return VINF_SUCCESS;
1732	}
1733
1734	#ifdef VBOX_WITH_HGCM
1735
1736	/**
1737	* Handles VMMDevReq_HGCMConnect.
1738	*
1739	* @returns VBox status code that the guest should see.
1740	* @param pThis The VMMDev instance data.
1741	* @param pReqHdr The header of the request to handle.
1742	* @param GCPhysReqHdr The guest physical address of the request header.
1743	*/
1744	static int vmmdevReqHandler_HGCMConnect(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr, RTGCPHYS GCPhysReqHdr)
1745	{
1746	VMMDevHGCMConnect pReq = (VMMDevHGCMConnect )pReqHdr;
1747	AssertMsgReturn(pReq->header.header.size >= sizeof(pReq), ("%u\n", pReq->header.header.size), VERR_INVALID_PARAMETER); /* @todo Not sure why this is >= ... */
1748
1749	if (pThis->pHGCMDrv)
1750	{
1751	Log(("VMMDevReq_HGCMConnect\n"));
1752	return vmmdevHGCMConnect(pThis, pReq, GCPhysReqHdr);
1753	}
1754
1755	Log(("VMMDevReq_HGCMConnect: HGCM Connector is NULL!\n"));
1756	return VERR_NOT_SUPPORTED;
1757	}
1758
1759
1760	/**
1761	* Handles VMMDevReq_HGCMDisconnect.
1762	*
1763	* @returns VBox status code that the guest should see.
1764	* @param pThis The VMMDev instance data.
1765	* @param pReqHdr The header of the request to handle.
1766	* @param GCPhysReqHdr The guest physical address of the request header.
1767	*/
1768	static int vmmdevReqHandler_HGCMDisconnect(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr, RTGCPHYS GCPhysReqHdr)
1769	{
1770	VMMDevHGCMDisconnect pReq = (VMMDevHGCMDisconnect )pReqHdr;
1771	AssertMsgReturn(pReq->header.header.size >= sizeof(pReq), ("%u\n", pReq->header.header.size), VERR_INVALID_PARAMETER); /* @todo Not sure why this >= ... */
1772
1773	if (pThis->pHGCMDrv)
1774	{
1775	Log(("VMMDevReq_VMMDevHGCMDisconnect\n"));
1776	return vmmdevHGCMDisconnect(pThis, pReq, GCPhysReqHdr);
1777	}
1778
1779	Log(("VMMDevReq_VMMDevHGCMDisconnect: HGCM Connector is NULL!\n"));
1780	return VERR_NOT_SUPPORTED;
1781	}
1782
1783
1784	/**
1785	* Handles VMMDevReq_HGCMCall.
1786	*
1787	* @returns VBox status code that the guest should see.
1788	* @param pThis The VMMDev instance data.
1789	* @param pReqHdr The header of the request to handle.
1790	* @param GCPhysReqHdr The guest physical address of the request header.
1791	* @param tsArrival The STAM_GET_TS() value when the request arrived.
1792	* @param ppLock Pointer to the lock info pointer (latter can be
1793	* NULL). Set to NULL if HGCM takes lock ownership.
1794	*/
1795	static int vmmdevReqHandler_HGCMCall(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr, RTGCPHYS GCPhysReqHdr,
1796	uint64_t tsArrival, PVMMDEVREQLOCK *ppLock)
1797	{
1798	VMMDevHGCMCall pReq = (VMMDevHGCMCall )pReqHdr;
1799	AssertMsgReturn(pReq->header.header.size >= sizeof(*pReq), ("%u\n", pReq->header.header.size), VERR_INVALID_PARAMETER);
1800
1801	if (pThis->pHGCMDrv)
1802	{
1803	Log2(("VMMDevReq_HGCMCall: sizeof(VMMDevHGCMRequest) = %04X\n", sizeof(VMMDevHGCMCall)));
1804	Log2(("%.*Rhxd\n", pReq->header.header.size, pReq));
1805
1806	return vmmdevHGCMCall(pThis, pReq, pReq->header.header.size, GCPhysReqHdr, pReq->header.header.requestType,
1807	tsArrival, ppLock);
1808	}
1809
1810	Log(("VMMDevReq_HGCMCall: HGCM Connector is NULL!\n"));
1811	return VERR_NOT_SUPPORTED;
1812	}
1813
1814	/**
1815	* Handles VMMDevReq_HGCMCancel.
1816	*
1817	* @returns VBox status code that the guest should see.
1818	* @param pThis The VMMDev instance data.
1819	* @param pReqHdr The header of the request to handle.
1820	* @param GCPhysReqHdr The guest physical address of the request header.
1821	*/
1822	static int vmmdevReqHandler_HGCMCancel(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr, RTGCPHYS GCPhysReqHdr)
1823	{
1824	VMMDevHGCMCancel pReq = (VMMDevHGCMCancel )pReqHdr;
1825	AssertMsgReturn(pReq->header.header.size >= sizeof(pReq), ("%u\n", pReq->header.header.size), VERR_INVALID_PARAMETER); /* @todo Not sure why this >= ... */
1826
1827	if (pThis->pHGCMDrv)
1828	{
1829	Log(("VMMDevReq_VMMDevHGCMCancel\n"));
1830	return vmmdevHGCMCancel(pThis, pReq, GCPhysReqHdr);
1831	}
1832
1833	Log(("VMMDevReq_VMMDevHGCMCancel: HGCM Connector is NULL!\n"));
1834	return VERR_NOT_SUPPORTED;
1835	}
1836
1837
1838	/**
1839	* Handles VMMDevReq_HGCMCancel2.
1840	*
1841	* @returns VBox status code that the guest should see.
1842	* @param pThis The VMMDev instance data.
1843	* @param pReqHdr The header of the request to handle.
1844	*/
1845	static int vmmdevReqHandler_HGCMCancel2(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1846	{
1847	VMMDevHGCMCancel2 pReq = (VMMDevHGCMCancel2 )pReqHdr;
1848	AssertMsgReturn(pReq->header.size >= sizeof(pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER); /* @todo Not sure why this >= ... */
1849
1850	if (pThis->pHGCMDrv)
1851	{
1852	Log(("VMMDevReq_HGCMCancel2\n"));
1853	return vmmdevHGCMCancel2(pThis, pReq->physReqToCancel);
1854	}
1855
1856	Log(("VMMDevReq_HGCMCancel2: HGCM Connector is NULL!\n"));
1857	return VERR_NOT_SUPPORTED;
1858	}
1859
1860	#endif /* VBOX_WITH_HGCM */
1861
1862
1863	/**
1864	* Handles VMMDevReq_VideoAccelEnable.
1865	*
1866	* @returns VBox status code that the guest should see.
1867	* @param pThis The VMMDev instance data.
1868	* @param pReqHdr The header of the request to handle.
1869	*/
1870	static int vmmdevReqHandler_VideoAccelEnable(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1871	{
1872	VMMDevVideoAccelEnable pReq = (VMMDevVideoAccelEnable )pReqHdr;
1873	AssertMsgReturn(pReq->header.size >= sizeof(pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER); /* @todo Not sure why this >= ... */
1874
1875	if (!pThis->pDrv)
1876	{
1877	Log(("VMMDevReq_VideoAccelEnable Connector is NULL!!\n"));
1878	return VERR_NOT_SUPPORTED;
1879	}
1880
1881	if (pReq->cbRingBuffer != VMMDEV_VBVA_RING_BUFFER_SIZE)
1882	{
1883	/* The guest driver seems compiled with different headers. */
1884	LogRelMax(16,("VMMDevReq_VideoAccelEnable guest ring buffer size %#x, should be %#x!!\n", pReq->cbRingBuffer, VMMDEV_VBVA_RING_BUFFER_SIZE));
1885	return VERR_INVALID_PARAMETER;
1886	}
1887
1888	/* The request is correct. */
1889	pReq->fu32Status \|= VBVA_F_STATUS_ACCEPTED;
1890
1891	LogFlow(("VMMDevReq_VideoAccelEnable pReq->u32Enable = %d\n", pReq->u32Enable));
1892
1893	int rc = pReq->u32Enable
1894	? pThis->pDrv->pfnVideoAccelEnable(pThis->pDrv, true, &pThis->pVMMDevRAMR3->vbvaMemory)
1895	: pThis->pDrv->pfnVideoAccelEnable(pThis->pDrv, false, NULL);
1896
1897	if ( pReq->u32Enable
1898	&& RT_SUCCESS(rc))
1899	{
1900	pReq->fu32Status \|= VBVA_F_STATUS_ENABLED;
1901
1902	/* Remember that guest successfully enabled acceleration.
1903	* We need to reestablish it on restoring the VM from saved state.
1904	*/
1905	pThis->u32VideoAccelEnabled = 1;
1906	}
1907	else
1908	{
1909	/* The acceleration was not enabled. Remember that. */
1910	pThis->u32VideoAccelEnabled = 0;
1911	}
1912	return VINF_SUCCESS;
1913	}
1914
1915
1916	/**
1917	* Handles VMMDevReq_VideoAccelFlush.
1918	*
1919	* @returns VBox status code that the guest should see.
1920	* @param pThis The VMMDev instance data.
1921	* @param pReqHdr The header of the request to handle.
1922	*/
1923	static int vmmdevReqHandler_VideoAccelFlush(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1924	{
1925	VMMDevVideoAccelFlush pReq = (VMMDevVideoAccelFlush )pReqHdr;
1926	AssertMsgReturn(pReq->header.size >= sizeof(pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER); /* @todo Not sure why this >= ... */
1927
1928	if (!pThis->pDrv)
1929	{
1930	Log(("VMMDevReq_VideoAccelFlush: Connector is NULL!!!\n"));
1931	return VERR_NOT_SUPPORTED;
1932	}
1933
1934	pThis->pDrv->pfnVideoAccelFlush(pThis->pDrv);
1935	return VINF_SUCCESS;
1936	}
1937
1938
1939	/**
1940	* Handles VMMDevReq_VideoSetVisibleRegion.
1941	*
1942	* @returns VBox status code that the guest should see.
1943	* @param pThis The VMMDev instance data.
1944	* @param pReqHdr The header of the request to handle.
1945	*/
1946	static int vmmdevReqHandler_VideoSetVisibleRegion(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1947	{
1948	VMMDevVideoSetVisibleRegion pReq = (VMMDevVideoSetVisibleRegion )pReqHdr;
1949	AssertMsgReturn(pReq->header.size + sizeof(RTRECT) >= sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1950
1951	if (!pThis->pDrv)
1952	{
1953	Log(("VMMDevReq_VideoSetVisibleRegion: Connector is NULL!!!\n"));
1954	return VERR_NOT_SUPPORTED;
1955	}
1956
1957	if ( pReq->cRect > _1M /* restrict to sane range */
1958	\|\| pReq->header.size != sizeof(VMMDevVideoSetVisibleRegion) + pReq->cRect * sizeof(RTRECT) - sizeof(RTRECT))
1959	{
1960	Log(("VMMDevReq_VideoSetVisibleRegion: cRects=%#x doesn't match size=%#x or is out of bounds\n",
1961	pReq->cRect, pReq->header.size));
1962	return VERR_INVALID_PARAMETER;
1963	}
1964
1965	Log(("VMMDevReq_VideoSetVisibleRegion %d rectangles\n", pReq->cRect));
1966	/* forward the call */
1967	return pThis->pDrv->pfnSetVisibleRegion(pThis->pDrv, pReq->cRect, &pReq->Rect);
1968	}
1969
1970
1971	/**
1972	* Handles VMMDevReq_GetSeamlessChangeRequest.
1973	*
1974	* @returns VBox status code that the guest should see.
1975	* @param pThis The VMMDev instance data.
1976	* @param pReqHdr The header of the request to handle.
1977	*/
1978	static int vmmdevReqHandler_GetSeamlessChangeRequest(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
1979	{
1980	VMMDevSeamlessChangeRequest pReq = (VMMDevSeamlessChangeRequest )pReqHdr;
1981	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
1982
1983	/* just pass on the information */
1984	Log(("VMMDev: returning seamless change request mode=%d\n", pThis->fSeamlessEnabled));
1985	if (pThis->fSeamlessEnabled)
1986	pReq->mode = VMMDev_Seamless_Visible_Region;
1987	else
1988	pReq->mode = VMMDev_Seamless_Disabled;
1989
1990	if (pReq->eventAck == VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST)
1991	{
1992	/* Remember which mode the client has queried. */
1993	pThis->fLastSeamlessEnabled = pThis->fSeamlessEnabled;
1994	}
1995
1996	return VINF_SUCCESS;
1997	}
1998
1999
2000	/**
2001	* Handles VMMDevReq_GetVRDPChangeRequest.
2002	*
2003	* @returns VBox status code that the guest should see.
2004	* @param pThis The VMMDev instance data.
2005	* @param pReqHdr The header of the request to handle.
2006	*/
2007	static int vmmdevReqHandler_GetVRDPChangeRequest(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2008	{
2009	VMMDevVRDPChangeRequest pReq = (VMMDevVRDPChangeRequest )pReqHdr;
2010	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2011
2012	/* just pass on the information */
2013	Log(("VMMDev: returning VRDP status %d level %d\n", pThis->fVRDPEnabled, pThis->uVRDPExperienceLevel));
2014
2015	pReq->u8VRDPActive = pThis->fVRDPEnabled;
2016	pReq->u32VRDPExperienceLevel = pThis->uVRDPExperienceLevel;
2017
2018	return VINF_SUCCESS;
2019	}
2020
2021
2022	/**
2023	* Handles VMMDevReq_GetMemBalloonChangeRequest.
2024	*
2025	* @returns VBox status code that the guest should see.
2026	* @param pThis The VMMDev instance data.
2027	* @param pReqHdr The header of the request to handle.
2028	*/
2029	static int vmmdevReqHandler_GetMemBalloonChangeRequest(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2030	{
2031	VMMDevGetMemBalloonChangeRequest pReq = (VMMDevGetMemBalloonChangeRequest )pReqHdr;
2032	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2033
2034	/* just pass on the information */
2035	Log(("VMMDev: returning memory balloon size =%d\n", pThis->cMbMemoryBalloon));
2036	pReq->cBalloonChunks = pThis->cMbMemoryBalloon;
2037	pReq->cPhysMemChunks = pThis->cbGuestRAM / (uint64_t)_1M;
2038
2039	if (pReq->eventAck == VMMDEV_EVENT_BALLOON_CHANGE_REQUEST)
2040	{
2041	/* Remember which mode the client has queried. */
2042	pThis->cMbMemoryBalloonLast = pThis->cMbMemoryBalloon;
2043	}
2044
2045	return VINF_SUCCESS;
2046	}
2047
2048
2049	/**
2050	* Handles VMMDevReq_ChangeMemBalloon.
2051	*
2052	* @returns VBox status code that the guest should see.
2053	* @param pThis The VMMDev instance data.
2054	* @param pReqHdr The header of the request to handle.
2055	*/
2056	static int vmmdevReqHandler_ChangeMemBalloon(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2057	{
2058	VMMDevChangeMemBalloon pReq = (VMMDevChangeMemBalloon )pReqHdr;
2059	AssertMsgReturn(pReq->header.size >= sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2060	AssertMsgReturn(pReq->cPages == VMMDEV_MEMORY_BALLOON_CHUNK_PAGES, ("%u\n", pReq->cPages), VERR_INVALID_PARAMETER);
2061	AssertMsgReturn(pReq->header.size == (uint32_t)RT_UOFFSETOF_DYN(VMMDevChangeMemBalloon, aPhysPage[pReq->cPages]),
2062	("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2063
2064	Log(("VMMDevReq_ChangeMemBalloon\n"));
2065	int rc = PGMR3PhysChangeMemBalloon(PDMDevHlpGetVM(pThis->pDevInsR3), !!pReq->fInflate, pReq->cPages, pReq->aPhysPage);
2066	if (pReq->fInflate)
2067	STAM_REL_U32_INC(&pThis->StatMemBalloonChunks);
2068	else
2069	STAM_REL_U32_DEC(&pThis->StatMemBalloonChunks);
2070	return rc;
2071	}
2072
2073
2074	/**
2075	* Handles VMMDevReq_GetStatisticsChangeRequest.
2076	*
2077	* @returns VBox status code that the guest should see.
2078	* @param pThis The VMMDev instance data.
2079	* @param pReqHdr The header of the request to handle.
2080	*/
2081	static int vmmdevReqHandler_GetStatisticsChangeRequest(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2082	{
2083	VMMDevGetStatisticsChangeRequest pReq = (VMMDevGetStatisticsChangeRequest )pReqHdr;
2084	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2085
2086	Log(("VMMDevReq_GetStatisticsChangeRequest\n"));
2087	/* just pass on the information */
2088	Log(("VMMDev: returning statistics interval %d seconds\n", pThis->u32StatIntervalSize));
2089	pReq->u32StatInterval = pThis->u32StatIntervalSize;
2090
2091	if (pReq->eventAck == VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST)
2092	{
2093	/* Remember which mode the client has queried. */
2094	pThis->u32LastStatIntervalSize= pThis->u32StatIntervalSize;
2095	}
2096
2097	return VINF_SUCCESS;
2098	}
2099
2100
2101	/**
2102	* Handles VMMDevReq_ReportGuestStats.
2103	*
2104	* @returns VBox status code that the guest should see.
2105	* @param pThis The VMMDev instance data.
2106	* @param pReqHdr The header of the request to handle.
2107	*/
2108	static int vmmdevReqHandler_ReportGuestStats(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2109	{
2110	VMMDevReportGuestStats pReq = (VMMDevReportGuestStats )pReqHdr;
2111	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2112
2113	Log(("VMMDevReq_ReportGuestStats\n"));
2114	#ifdef LOG_ENABLED
2115	VBoxGuestStatistics *pGuestStats = &pReq->guestStats;
2116
2117	Log(("Current statistics:\n"));
2118	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_CPU_LOAD_IDLE)
2119	Log(("CPU%u: CPU Load Idle %-3d%%\n", pGuestStats->u32CpuId, pGuestStats->u32CpuLoad_Idle));
2120
2121	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_CPU_LOAD_KERNEL)
2122	Log(("CPU%u: CPU Load Kernel %-3d%%\n", pGuestStats->u32CpuId, pGuestStats->u32CpuLoad_Kernel));
2123
2124	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_CPU_LOAD_USER)
2125	Log(("CPU%u: CPU Load User %-3d%%\n", pGuestStats->u32CpuId, pGuestStats->u32CpuLoad_User));
2126
2127	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_THREADS)
2128	Log(("CPU%u: Thread %d\n", pGuestStats->u32CpuId, pGuestStats->u32Threads));
2129
2130	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_PROCESSES)
2131	Log(("CPU%u: Processes %d\n", pGuestStats->u32CpuId, pGuestStats->u32Processes));
2132
2133	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_HANDLES)
2134	Log(("CPU%u: Handles %d\n", pGuestStats->u32CpuId, pGuestStats->u32Handles));
2135
2136	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_MEMORY_LOAD)
2137	Log(("CPU%u: Memory Load %d%%\n", pGuestStats->u32CpuId, pGuestStats->u32MemoryLoad));
2138
2139	/* Note that reported values are in pages; upper layers expect them in megabytes */
2140	Log(("CPU%u: Page size %-4d bytes\n", pGuestStats->u32CpuId, pGuestStats->u32PageSize));
2141	Assert(pGuestStats->u32PageSize == 4096);
2142
2143	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_PHYS_MEM_TOTAL)
2144	Log(("CPU%u: Total physical memory %-4d MB\n", pGuestStats->u32CpuId, (pGuestStats->u32PhysMemTotal + (_1M/_4K)-1) / (_1M/_4K)));
2145
2146	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_PHYS_MEM_AVAIL)
2147	Log(("CPU%u: Free physical memory %-4d MB\n", pGuestStats->u32CpuId, pGuestStats->u32PhysMemAvail / (_1M/_4K)));
2148
2149	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_PHYS_MEM_BALLOON)
2150	Log(("CPU%u: Memory balloon size %-4d MB\n", pGuestStats->u32CpuId, pGuestStats->u32PhysMemBalloon / (_1M/_4K)));
2151
2152	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_MEM_COMMIT_TOTAL)
2153	Log(("CPU%u: Committed memory %-4d MB\n", pGuestStats->u32CpuId, pGuestStats->u32MemCommitTotal / (_1M/_4K)));
2154
2155	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_MEM_KERNEL_TOTAL)
2156	Log(("CPU%u: Total kernel memory %-4d MB\n", pGuestStats->u32CpuId, pGuestStats->u32MemKernelTotal / (_1M/_4K)));
2157
2158	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_MEM_KERNEL_PAGED)
2159	Log(("CPU%u: Paged kernel memory %-4d MB\n", pGuestStats->u32CpuId, pGuestStats->u32MemKernelPaged / (_1M/_4K)));
2160
2161	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_MEM_KERNEL_NONPAGED)
2162	Log(("CPU%u: Nonpaged kernel memory %-4d MB\n", pGuestStats->u32CpuId, pGuestStats->u32MemKernelNonPaged / (_1M/_4K)));
2163
2164	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_MEM_SYSTEM_CACHE)
2165	Log(("CPU%u: System cache size %-4d MB\n", pGuestStats->u32CpuId, pGuestStats->u32MemSystemCache / (_1M/_4K)));
2166
2167	if (pGuestStats->u32StatCaps & VBOX_GUEST_STAT_PAGE_FILE_SIZE)
2168	Log(("CPU%u: Page file size %-4d MB\n", pGuestStats->u32CpuId, pGuestStats->u32PageFileSize / (_1M/_4K)));
2169	Log(("Statistics end *******************\n"));
2170	#endif /* LOG_ENABLED */
2171
2172	/* forward the call */
2173	return pThis->pDrv->pfnReportStatistics(pThis->pDrv, &pReq->guestStats);
2174	}
2175
2176
2177	/**
2178	* Handles VMMDevReq_QueryCredentials.
2179	*
2180	* @returns VBox status code that the guest should see.
2181	* @param pThis The VMMDev instance data.
2182	* @param pReqHdr The header of the request to handle.
2183	*/
2184	static int vmmdevReqHandler_QueryCredentials(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2185	{
2186	VMMDevCredentials pReq = (VMMDevCredentials )pReqHdr;
2187	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2188
2189	/* let's start by nulling out the data */
2190	memset(pReq->szUserName, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2191	memset(pReq->szPassword, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2192	memset(pReq->szDomain, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2193
2194	/* should we return whether we got credentials for a logon? */
2195	if (pReq->u32Flags & VMMDEV_CREDENTIALS_QUERYPRESENCE)
2196	{
2197	if ( pThis->pCredentials->Logon.szUserName[0]
2198	\|\| pThis->pCredentials->Logon.szPassword[0]
2199	\|\| pThis->pCredentials->Logon.szDomain[0])
2200	pReq->u32Flags \|= VMMDEV_CREDENTIALS_PRESENT;
2201	else
2202	pReq->u32Flags &= ~VMMDEV_CREDENTIALS_PRESENT;
2203	}
2204
2205	/* does the guest want to read logon credentials? */
2206	if (pReq->u32Flags & VMMDEV_CREDENTIALS_READ)
2207	{
2208	if (pThis->pCredentials->Logon.szUserName[0])
2209	strcpy(pReq->szUserName, pThis->pCredentials->Logon.szUserName);
2210	if (pThis->pCredentials->Logon.szPassword[0])
2211	strcpy(pReq->szPassword, pThis->pCredentials->Logon.szPassword);
2212	if (pThis->pCredentials->Logon.szDomain[0])
2213	strcpy(pReq->szDomain, pThis->pCredentials->Logon.szDomain);
2214	if (!pThis->pCredentials->Logon.fAllowInteractiveLogon)
2215	pReq->u32Flags \|= VMMDEV_CREDENTIALS_NOLOCALLOGON;
2216	else
2217	pReq->u32Flags &= ~VMMDEV_CREDENTIALS_NOLOCALLOGON;
2218	}
2219
2220	if (!pThis->fKeepCredentials)
2221	{
2222	/* does the caller want us to destroy the logon credentials? */
2223	if (pReq->u32Flags & VMMDEV_CREDENTIALS_CLEAR)
2224	{
2225	memset(pThis->pCredentials->Logon.szUserName, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2226	memset(pThis->pCredentials->Logon.szPassword, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2227	memset(pThis->pCredentials->Logon.szDomain, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2228	}
2229	}
2230
2231	/* does the guest want to read credentials for verification? */
2232	if (pReq->u32Flags & VMMDEV_CREDENTIALS_READJUDGE)
2233	{
2234	if (pThis->pCredentials->Judge.szUserName[0])
2235	strcpy(pReq->szUserName, pThis->pCredentials->Judge.szUserName);
2236	if (pThis->pCredentials->Judge.szPassword[0])
2237	strcpy(pReq->szPassword, pThis->pCredentials->Judge.szPassword);
2238	if (pThis->pCredentials->Judge.szDomain[0])
2239	strcpy(pReq->szDomain, pThis->pCredentials->Judge.szDomain);
2240	}
2241
2242	/* does the caller want us to destroy the judgement credentials? */
2243	if (pReq->u32Flags & VMMDEV_CREDENTIALS_CLEARJUDGE)
2244	{
2245	memset(pThis->pCredentials->Judge.szUserName, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2246	memset(pThis->pCredentials->Judge.szPassword, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2247	memset(pThis->pCredentials->Judge.szDomain, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
2248	}
2249
2250	return VINF_SUCCESS;
2251	}
2252
2253
2254	/**
2255	* Handles VMMDevReq_ReportCredentialsJudgement.
2256	*
2257	* @returns VBox status code that the guest should see.
2258	* @param pThis The VMMDev instance data.
2259	* @param pReqHdr The header of the request to handle.
2260	*/
2261	static int vmmdevReqHandler_ReportCredentialsJudgement(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2262	{
2263	VMMDevCredentials pReq = (VMMDevCredentials )pReqHdr;
2264	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2265
2266	/* what does the guest think about the credentials? (note: the order is important here!) */
2267	if (pReq->u32Flags & VMMDEV_CREDENTIALS_JUDGE_DENY)
2268	pThis->pDrv->pfnSetCredentialsJudgementResult(pThis->pDrv, VMMDEV_CREDENTIALS_JUDGE_DENY);
2269	else if (pReq->u32Flags & VMMDEV_CREDENTIALS_JUDGE_NOJUDGEMENT)
2270	pThis->pDrv->pfnSetCredentialsJudgementResult(pThis->pDrv, VMMDEV_CREDENTIALS_JUDGE_NOJUDGEMENT);
2271	else if (pReq->u32Flags & VMMDEV_CREDENTIALS_JUDGE_OK)
2272	pThis->pDrv->pfnSetCredentialsJudgementResult(pThis->pDrv, VMMDEV_CREDENTIALS_JUDGE_OK);
2273	else
2274	{
2275	Log(("VMMDevReq_ReportCredentialsJudgement: invalid flags: %d!!!\n", pReq->u32Flags));
2276	/** @todo why don't we return VERR_INVALID_PARAMETER to the guest? */
2277	}
2278
2279	return VINF_SUCCESS;
2280	}
2281
2282
2283	/**
2284	* Handles VMMDevReq_GetHostVersion.
2285	*
2286	* @returns VBox status code that the guest should see.
2287	* @param pReqHdr The header of the request to handle.
2288	* @since 3.1.0
2289	* @note The ring-0 VBoxGuestLib uses this to check whether
2290	* VMMDevHGCMParmType_PageList is supported.
2291	*/
2292	static int vmmdevReqHandler_GetHostVersion(VMMDevRequestHeader *pReqHdr)
2293	{
2294	VMMDevReqHostVersion pReq = (VMMDevReqHostVersion )pReqHdr;
2295	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2296
2297	pReq->major = RTBldCfgVersionMajor();
2298	pReq->minor = RTBldCfgVersionMinor();
2299	pReq->build = RTBldCfgVersionBuild();
2300	pReq->revision = RTBldCfgRevision();
2301	pReq->features = VMMDEV_HVF_HGCM_PHYS_PAGE_LIST
2302	\| VMMDEV_HVF_HGCM_EMBEDDED_BUFFERS
2303	\| VMMDEV_HVF_HGCM_CONTIGUOUS_PAGE_LIST
2304	\| VMMDEV_HVF_FAST_IRQ_ACK;
2305	return VINF_SUCCESS;
2306	}
2307
2308
2309	/**
2310	* Handles VMMDevReq_GetCpuHotPlugRequest.
2311	*
2312	* @returns VBox status code that the guest should see.
2313	* @param pThis The VMMDev instance data.
2314	* @param pReqHdr The header of the request to handle.
2315	*/
2316	static int vmmdevReqHandler_GetCpuHotPlugRequest(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2317	{
2318	VMMDevGetCpuHotPlugRequest pReq = (VMMDevGetCpuHotPlugRequest )pReqHdr;
2319	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2320
2321	pReq->enmEventType = pThis->enmCpuHotPlugEvent;
2322	pReq->idCpuCore = pThis->idCpuCore;
2323	pReq->idCpuPackage = pThis->idCpuPackage;
2324
2325	/* Clear the event */
2326	pThis->enmCpuHotPlugEvent = VMMDevCpuEventType_None;
2327	pThis->idCpuCore = UINT32_MAX;
2328	pThis->idCpuPackage = UINT32_MAX;
2329
2330	return VINF_SUCCESS;
2331	}
2332
2333
2334	/**
2335	* Handles VMMDevReq_SetCpuHotPlugStatus.
2336	*
2337	* @returns VBox status code that the guest should see.
2338	* @param pThis The VMMDev instance data.
2339	* @param pReqHdr The header of the request to handle.
2340	*/
2341	static int vmmdevReqHandler_SetCpuHotPlugStatus(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2342	{
2343	VMMDevCpuHotPlugStatusRequest pReq = (VMMDevCpuHotPlugStatusRequest )pReqHdr;
2344	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2345
2346	if (pReq->enmStatusType == VMMDevCpuStatusType_Disable)
2347	pThis->fCpuHotPlugEventsEnabled = false;
2348	else if (pReq->enmStatusType == VMMDevCpuStatusType_Enable)
2349	pThis->fCpuHotPlugEventsEnabled = true;
2350	else
2351	return VERR_INVALID_PARAMETER;
2352	return VINF_SUCCESS;
2353	}
2354
2355
2356	#ifdef DEBUG
2357	/**
2358	* Handles VMMDevReq_LogString.
2359	*
2360	* @returns VBox status code that the guest should see.
2361	* @param pReqHdr The header of the request to handle.
2362	*/
2363	static int vmmdevReqHandler_LogString(VMMDevRequestHeader *pReqHdr)
2364	{
2365	VMMDevReqLogString pReq = (VMMDevReqLogString )pReqHdr;
2366	AssertMsgReturn(pReq->header.size >= sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2367	AssertMsgReturn(pReq->szString[pReq->header.size - RT_UOFFSETOF(VMMDevReqLogString, szString) - 1] == '\0',
2368	("not null terminated\n"), VERR_INVALID_PARAMETER);
2369
2370	LogIt(RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP_DEV_VMM_BACKDOOR, ("DEBUG LOG: %s", pReq->szString));
2371	return VINF_SUCCESS;
2372	}
2373	#endif /* DEBUG */
2374
2375	/**
2376	* Handles VMMDevReq_GetSessionId.
2377	*
2378	* Get a unique "session" ID for this VM, where the ID will be different after each
2379	* start, reset or restore of the VM. This can be used for restore detection
2380	* inside the guest.
2381	*
2382	* @returns VBox status code that the guest should see.
2383	* @param pThis The VMMDev instance data.
2384	* @param pReqHdr The header of the request to handle.
2385	*/
2386	static int vmmdevReqHandler_GetSessionId(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2387	{
2388	VMMDevReqSessionId pReq = (VMMDevReqSessionId )pReqHdr;
2389	AssertMsgReturn(pReq->header.size == sizeof(*pReq), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2390
2391	pReq->idSession = pThis->idSession;
2392	return VINF_SUCCESS;
2393	}
2394
2395
2396	#ifdef VBOX_WITH_PAGE_SHARING
2397
2398	/**
2399	* Handles VMMDevReq_RegisterSharedModule.
2400	*
2401	* @returns VBox status code that the guest should see.
2402	* @param pThis The VMMDev instance data.
2403	* @param pReqHdr The header of the request to handle.
2404	*/
2405	static int vmmdevReqHandler_RegisterSharedModule(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2406	{
2407	/*
2408	* Basic input validation (more done by GMM).
2409	*/
2410	VMMDevSharedModuleRegistrationRequest pReq = (VMMDevSharedModuleRegistrationRequest )pReqHdr;
2411	AssertMsgReturn(pReq->header.size >= sizeof(VMMDevSharedModuleRegistrationRequest),
2412	("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2413	AssertMsgReturn(pReq->header.size == RT_UOFFSETOF_DYN(VMMDevSharedModuleRegistrationRequest, aRegions[pReq->cRegions]),
2414	("%u cRegions=%u\n", pReq->header.size, pReq->cRegions), VERR_INVALID_PARAMETER);
2415
2416	AssertReturn(RTStrEnd(pReq->szName, sizeof(pReq->szName)), VERR_INVALID_PARAMETER);
2417	AssertReturn(RTStrEnd(pReq->szVersion, sizeof(pReq->szVersion)), VERR_INVALID_PARAMETER);
2418	int rc = RTStrValidateEncoding(pReq->szName);
2419	AssertRCReturn(rc, rc);
2420	rc = RTStrValidateEncoding(pReq->szVersion);
2421	AssertRCReturn(rc, rc);
2422
2423	/*
2424	* Forward the request to the VMM.
2425	*/
2426	return PGMR3SharedModuleRegister(PDMDevHlpGetVM(pThis->pDevInsR3), pReq->enmGuestOS, pReq->szName, pReq->szVersion,
2427	pReq->GCBaseAddr, pReq->cbModule, pReq->cRegions, pReq->aRegions);
2428	}
2429
2430	/**
2431	* Handles VMMDevReq_UnregisterSharedModule.
2432	*
2433	* @returns VBox status code that the guest should see.
2434	* @param pThis The VMMDev instance data.
2435	* @param pReqHdr The header of the request to handle.
2436	*/
2437	static int vmmdevReqHandler_UnregisterSharedModule(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2438	{
2439	/*
2440	* Basic input validation.
2441	*/
2442	VMMDevSharedModuleUnregistrationRequest pReq = (VMMDevSharedModuleUnregistrationRequest )pReqHdr;
2443	AssertMsgReturn(pReq->header.size == sizeof(VMMDevSharedModuleUnregistrationRequest),
2444	("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2445
2446	AssertReturn(RTStrEnd(pReq->szName, sizeof(pReq->szName)), VERR_INVALID_PARAMETER);
2447	AssertReturn(RTStrEnd(pReq->szVersion, sizeof(pReq->szVersion)), VERR_INVALID_PARAMETER);
2448	int rc = RTStrValidateEncoding(pReq->szName);
2449	AssertRCReturn(rc, rc);
2450	rc = RTStrValidateEncoding(pReq->szVersion);
2451	AssertRCReturn(rc, rc);
2452
2453	/*
2454	* Forward the request to the VMM.
2455	*/
2456	return PGMR3SharedModuleUnregister(PDMDevHlpGetVM(pThis->pDevInsR3), pReq->szName, pReq->szVersion,
2457	pReq->GCBaseAddr, pReq->cbModule);
2458	}
2459
2460	/**
2461	* Handles VMMDevReq_CheckSharedModules.
2462	*
2463	* @returns VBox status code that the guest should see.
2464	* @param pThis The VMMDev instance data.
2465	* @param pReqHdr The header of the request to handle.
2466	*/
2467	static int vmmdevReqHandler_CheckSharedModules(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2468	{
2469	VMMDevSharedModuleCheckRequest pReq = (VMMDevSharedModuleCheckRequest )pReqHdr;
2470	AssertMsgReturn(pReq->header.size == sizeof(VMMDevSharedModuleCheckRequest),
2471	("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2472	return PGMR3SharedModuleCheckAll(PDMDevHlpGetVM(pThis->pDevInsR3));
2473	}
2474
2475	/**
2476	* Handles VMMDevReq_GetPageSharingStatus.
2477	*
2478	* @returns VBox status code that the guest should see.
2479	* @param pThis The VMMDev instance data.
2480	* @param pReqHdr The header of the request to handle.
2481	*/
2482	static int vmmdevReqHandler_GetPageSharingStatus(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2483	{
2484	VMMDevPageSharingStatusRequest pReq = (VMMDevPageSharingStatusRequest )pReqHdr;
2485	AssertMsgReturn(pReq->header.size == sizeof(VMMDevPageSharingStatusRequest),
2486	("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2487
2488	pReq->fEnabled = false;
2489	int rc = pThis->pDrv->pfnIsPageFusionEnabled(pThis->pDrv, &pReq->fEnabled);
2490	if (RT_FAILURE(rc))
2491	pReq->fEnabled = false;
2492	return VINF_SUCCESS;
2493	}
2494
2495
2496	/**
2497	* Handles VMMDevReq_DebugIsPageShared.
2498	*
2499	* @returns VBox status code that the guest should see.
2500	* @param pThis The VMMDev instance data.
2501	* @param pReqHdr The header of the request to handle.
2502	*/
2503	static int vmmdevReqHandler_DebugIsPageShared(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2504	{
2505	VMMDevPageIsSharedRequest pReq = (VMMDevPageIsSharedRequest )pReqHdr;
2506	AssertMsgReturn(pReq->header.size == sizeof(VMMDevPageIsSharedRequest),
2507	("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2508
2509	# ifdef DEBUG
2510	return PGMR3SharedModuleGetPageState(PDMDevHlpGetVM(pThis->pDevInsR3), pReq->GCPtrPage, &pReq->fShared, &pReq->uPageFlags);
2511	# else
2512	RT_NOREF1(pThis);
2513	return VERR_NOT_IMPLEMENTED;
2514	# endif
2515	}
2516
2517	#endif /* VBOX_WITH_PAGE_SHARING */
2518
2519
2520	/**
2521	* Handles VMMDevReq_WriteCoreDumpe
2522	*
2523	* @returns VBox status code that the guest should see.
2524	* @param pThis The VMMDev instance data.
2525	* @param pReqHdr Pointer to the request header.
2526	*/
2527	static int vmmdevReqHandler_WriteCoreDump(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr)
2528	{
2529	VMMDevReqWriteCoreDump pReq = (VMMDevReqWriteCoreDump )pReqHdr;
2530	AssertMsgReturn(pReq->header.size == sizeof(VMMDevReqWriteCoreDump), ("%u\n", pReq->header.size), VERR_INVALID_PARAMETER);
2531
2532	/*
2533	* Only available if explicitly enabled by the user.
2534	*/
2535	if (!pThis->fGuestCoreDumpEnabled)
2536	return VERR_ACCESS_DENIED;
2537
2538	/*
2539	* User makes sure the directory exists before composing the path.
2540	*/
2541	if (!RTDirExists(pThis->szGuestCoreDumpDir))
2542	return VERR_PATH_NOT_FOUND;
2543
2544	char szCorePath[RTPATH_MAX];
2545	RTStrCopy(szCorePath, sizeof(szCorePath), pThis->szGuestCoreDumpDir);
2546	RTPathAppend(szCorePath, sizeof(szCorePath), "VBox.core");
2547
2548	/*
2549	* Rotate existing cores based on number of additional cores to keep around.
2550	*/
2551	if (pThis->cGuestCoreDumps > 0)
2552	for (int64_t i = pThis->cGuestCoreDumps - 1; i >= 0; i--)
2553	{
2554	char szFilePathOld[RTPATH_MAX];
2555	if (i == 0)
2556	RTStrCopy(szFilePathOld, sizeof(szFilePathOld), szCorePath);
2557	else
2558	RTStrPrintf(szFilePathOld, sizeof(szFilePathOld), "%s.%lld", szCorePath, i);
2559
2560	char szFilePathNew[RTPATH_MAX];
2561	RTStrPrintf(szFilePathNew, sizeof(szFilePathNew), "%s.%lld", szCorePath, i + 1);
2562	int vrc = RTFileMove(szFilePathOld, szFilePathNew, RTFILEMOVE_FLAGS_REPLACE);
2563	if (vrc == VERR_FILE_NOT_FOUND)
2564	RTFileDelete(szFilePathNew);
2565	}
2566
2567	/*
2568	* Write the core file.
2569	*/
2570	PUVM pUVM = PDMDevHlpGetUVM(pThis->pDevInsR3);
2571	return DBGFR3CoreWrite(pUVM, szCorePath, true /fReplaceFile/);
2572	}
2573
2574
2575	/**
2576	* Sets request status to VINF_HGCM_ASYNC_EXECUTE.
2577	*
2578	* @param pThis The VMM device instance data.
2579	* @param GCPhysReqHdr The guest physical address of the request.
2580	* @param pLock Pointer to the request locking info. NULL if not
2581	* locked.
2582	*/
2583	DECLINLINE(void) vmmdevReqHdrSetHgcmAsyncExecute(PVMMDEV pThis, RTGCPHYS GCPhysReqHdr, PVMMDEVREQLOCK pLock)
2584	{
2585	if (pLock)
2586	((VMMDevRequestHeader volatile *)pLock->pvReq)->rc = VINF_HGCM_ASYNC_EXECUTE;
2587	else
2588	{
2589	int32_t rcReq = VINF_HGCM_ASYNC_EXECUTE;
2590	PDMDevHlpPhysWrite(pThis->pDevInsR3, GCPhysReqHdr + RT_UOFFSETOF(VMMDevRequestHeader, rc), &rcReq, sizeof(rcReq));
2591	}
2592	}
2593
2594
2595	/** @name VMMDEVREQDISP_POST_F_XXX - post dispatcher optimizations.
2596	* @{ */
2597	#define VMMDEVREQDISP_POST_F_NO_WRITE_OUT RT_BIT_32(0)
2598	/** @} */
2599
2600
2601	/**
2602	* Dispatch the request to the appropriate handler function.
2603	*
2604	* @returns Port I/O handler exit code.
2605	* @param pThis The VMM device instance data.
2606	* @param pReqHdr The request header (cached in host memory).
2607	* @param GCPhysReqHdr The guest physical address of the request (for
2608	* HGCM).
2609	* @param tsArrival The STAM_GET_TS() value when the request arrived.
2610	* @param pfPostOptimize HGCM optimizations, VMMDEVREQDISP_POST_F_XXX.
2611	* @param ppLock Pointer to the lock info pointer (latter can be
2612	* NULL). Set to NULL if HGCM takes lock ownership.
2613	*/
2614	static int vmmdevReqDispatcher(PVMMDEV pThis, VMMDevRequestHeader *pReqHdr, RTGCPHYS GCPhysReqHdr,
2615	uint64_t tsArrival, uint32_t pfPostOptimize, PVMMDEVREQLOCK ppLock)
2616	{
2617	int rcRet = VINF_SUCCESS;
2618	Assert(*pfPostOptimize == 0);
2619
2620	switch (pReqHdr->requestType)
2621	{
2622	case VMMDevReq_ReportGuestInfo:
2623	pReqHdr->rc = vmmdevReqHandler_ReportGuestInfo(pThis, pReqHdr);
2624	break;
2625
2626	case VMMDevReq_ReportGuestInfo2:
2627	pReqHdr->rc = vmmdevReqHandler_ReportGuestInfo2(pThis, pReqHdr);
2628	break;
2629
2630	case VMMDevReq_ReportGuestStatus:
2631	pReqHdr->rc = vmmdevReqHandler_ReportGuestStatus(pThis, pReqHdr);
2632	break;
2633
2634	case VMMDevReq_ReportGuestUserState:
2635	pReqHdr->rc = vmmdevReqHandler_ReportGuestUserState(pThis, pReqHdr);
2636	break;
2637
2638	case VMMDevReq_ReportGuestCapabilities:
2639	pReqHdr->rc = vmmdevReqHandler_ReportGuestCapabilities(pThis, pReqHdr);
2640	break;
2641
2642	case VMMDevReq_SetGuestCapabilities:
2643	pReqHdr->rc = vmmdevReqHandler_SetGuestCapabilities(pThis, pReqHdr);
2644	break;
2645
2646	case VMMDevReq_WriteCoreDump:
2647	pReqHdr->rc = vmmdevReqHandler_WriteCoreDump(pThis, pReqHdr);
2648	break;
2649
2650	case VMMDevReq_GetMouseStatus:
2651	pReqHdr->rc = vmmdevReqHandler_GetMouseStatus(pThis, pReqHdr);
2652	break;
2653
2654	case VMMDevReq_SetMouseStatus:
2655	pReqHdr->rc = vmmdevReqHandler_SetMouseStatus(pThis, pReqHdr);
2656	break;
2657
2658	case VMMDevReq_SetPointerShape:
2659	pReqHdr->rc = vmmdevReqHandler_SetPointerShape(pThis, pReqHdr);
2660	break;
2661
2662	case VMMDevReq_GetHostTime:
2663	pReqHdr->rc = vmmdevReqHandler_GetHostTime(pThis, pReqHdr);
2664	break;
2665
2666	case VMMDevReq_GetHypervisorInfo:
2667	pReqHdr->rc = vmmdevReqHandler_GetHypervisorInfo(pThis, pReqHdr);
2668	break;
2669
2670	case VMMDevReq_SetHypervisorInfo:
2671	pReqHdr->rc = vmmdevReqHandler_SetHypervisorInfo(pThis, pReqHdr);
2672	break;
2673
2674	case VMMDevReq_RegisterPatchMemory:
2675	pReqHdr->rc = vmmdevReqHandler_RegisterPatchMemory(pThis, pReqHdr);
2676	break;
2677
2678	case VMMDevReq_DeregisterPatchMemory:
2679	pReqHdr->rc = vmmdevReqHandler_DeregisterPatchMemory(pThis, pReqHdr);
2680	break;
2681
2682	case VMMDevReq_SetPowerStatus:
2683	{
2684	int rc = pReqHdr->rc = vmmdevReqHandler_SetPowerStatus(pThis, pReqHdr);
2685	if (rc != VINF_SUCCESS && RT_SUCCESS(rc))
2686	rcRet = rc;
2687	break;
2688	}
2689
2690	case VMMDevReq_GetDisplayChangeRequest:
2691	pReqHdr->rc = vmmdevReqHandler_GetDisplayChangeRequest(pThis, pReqHdr);
2692	break;
2693
2694	case VMMDevReq_GetDisplayChangeRequest2:
2695	pReqHdr->rc = vmmdevReqHandler_GetDisplayChangeRequest2(pThis, pReqHdr);
2696	break;
2697
2698	case VMMDevReq_GetDisplayChangeRequestEx:
2699	pReqHdr->rc = vmmdevReqHandler_GetDisplayChangeRequestEx(pThis, pReqHdr);
2700	break;
2701
2702	case VMMDevReq_GetDisplayChangeRequestMulti:
2703	pReqHdr->rc = vmmdevReqHandler_GetDisplayChangeRequestMulti(pThis, pReqHdr);
2704	break;
2705
2706	case VMMDevReq_VideoModeSupported:
2707	pReqHdr->rc = vmmdevReqHandler_VideoModeSupported(pThis, pReqHdr);
2708	break;
2709
2710	case VMMDevReq_VideoModeSupported2:
2711	pReqHdr->rc = vmmdevReqHandler_VideoModeSupported2(pThis, pReqHdr);
2712	break;
2713
2714	case VMMDevReq_GetHeightReduction:
2715	pReqHdr->rc = vmmdevReqHandler_GetHeightReduction(pThis, pReqHdr);
2716	break;
2717
2718	case VMMDevReq_AcknowledgeEvents:
2719	pReqHdr->rc = vmmdevReqHandler_AcknowledgeEvents(pThis, pReqHdr);
2720	break;
2721
2722	case VMMDevReq_CtlGuestFilterMask:
2723	pReqHdr->rc = vmmdevReqHandler_CtlGuestFilterMask(pThis, pReqHdr);
2724	break;
2725
2726	#ifdef VBOX_WITH_HGCM
2727	case VMMDevReq_HGCMConnect:
2728	vmmdevReqHdrSetHgcmAsyncExecute(pThis, GCPhysReqHdr, *ppLock);
2729	pReqHdr->rc = vmmdevReqHandler_HGCMConnect(pThis, pReqHdr, GCPhysReqHdr);
2730	Assert(pReqHdr->rc == VINF_HGCM_ASYNC_EXECUTE \|\| RT_FAILURE_NP(pReqHdr->rc));
2731	if (RT_SUCCESS(pReqHdr->rc))
2732	*pfPostOptimize \|= VMMDEVREQDISP_POST_F_NO_WRITE_OUT;
2733	break;
2734
2735	case VMMDevReq_HGCMDisconnect:
2736	vmmdevReqHdrSetHgcmAsyncExecute(pThis, GCPhysReqHdr, *ppLock);
2737	pReqHdr->rc = vmmdevReqHandler_HGCMDisconnect(pThis, pReqHdr, GCPhysReqHdr);
2738	Assert(pReqHdr->rc == VINF_HGCM_ASYNC_EXECUTE \|\| RT_FAILURE_NP(pReqHdr->rc));
2739	if (RT_SUCCESS(pReqHdr->rc))
2740	*pfPostOptimize \|= VMMDEVREQDISP_POST_F_NO_WRITE_OUT;
2741	break;
2742
2743	# ifdef VBOX_WITH_64_BITS_GUESTS
2744	case VMMDevReq_HGCMCall32:
2745	case VMMDevReq_HGCMCall64:
2746	# else
2747	case VMMDevReq_HGCMCall:
2748	# endif /* VBOX_WITH_64_BITS_GUESTS */
2749	vmmdevReqHdrSetHgcmAsyncExecute(pThis, GCPhysReqHdr, *ppLock);
2750	pReqHdr->rc = vmmdevReqHandler_HGCMCall(pThis, pReqHdr, GCPhysReqHdr, tsArrival, ppLock);
2751	Assert(pReqHdr->rc == VINF_HGCM_ASYNC_EXECUTE \|\| RT_FAILURE_NP(pReqHdr->rc));
2752	if (RT_SUCCESS(pReqHdr->rc))
2753	*pfPostOptimize \|= VMMDEVREQDISP_POST_F_NO_WRITE_OUT;
2754	break;
2755
2756	case VMMDevReq_HGCMCancel:
2757	pReqHdr->rc = vmmdevReqHandler_HGCMCancel(pThis, pReqHdr, GCPhysReqHdr);
2758	break;
2759
2760	case VMMDevReq_HGCMCancel2:
2761	pReqHdr->rc = vmmdevReqHandler_HGCMCancel2(pThis, pReqHdr);
2762	break;
2763	#endif /* VBOX_WITH_HGCM */
2764
2765	case VMMDevReq_VideoAccelEnable:
2766	pReqHdr->rc = vmmdevReqHandler_VideoAccelEnable(pThis, pReqHdr);
2767	break;
2768
2769	case VMMDevReq_VideoAccelFlush:
2770	pReqHdr->rc = vmmdevReqHandler_VideoAccelFlush(pThis, pReqHdr);
2771	break;
2772
2773	case VMMDevReq_VideoSetVisibleRegion:
2774	pReqHdr->rc = vmmdevReqHandler_VideoSetVisibleRegion(pThis, pReqHdr);
2775	break;
2776
2777	case VMMDevReq_GetSeamlessChangeRequest:
2778	pReqHdr->rc = vmmdevReqHandler_GetSeamlessChangeRequest(pThis, pReqHdr);
2779	break;
2780
2781	case VMMDevReq_GetVRDPChangeRequest:
2782	pReqHdr->rc = vmmdevReqHandler_GetVRDPChangeRequest(pThis, pReqHdr);
2783	break;
2784
2785	case VMMDevReq_GetMemBalloonChangeRequest:
2786	pReqHdr->rc = vmmdevReqHandler_GetMemBalloonChangeRequest(pThis, pReqHdr);
2787	break;
2788
2789	case VMMDevReq_ChangeMemBalloon:
2790	pReqHdr->rc = vmmdevReqHandler_ChangeMemBalloon(pThis, pReqHdr);
2791	break;
2792
2793	case VMMDevReq_GetStatisticsChangeRequest:
2794	pReqHdr->rc = vmmdevReqHandler_GetStatisticsChangeRequest(pThis, pReqHdr);
2795	break;
2796
2797	case VMMDevReq_ReportGuestStats:
2798	pReqHdr->rc = vmmdevReqHandler_ReportGuestStats(pThis, pReqHdr);
2799	break;
2800
2801	case VMMDevReq_QueryCredentials:
2802	pReqHdr->rc = vmmdevReqHandler_QueryCredentials(pThis, pReqHdr);
2803	break;
2804
2805	case VMMDevReq_ReportCredentialsJudgement:
2806	pReqHdr->rc = vmmdevReqHandler_ReportCredentialsJudgement(pThis, pReqHdr);
2807	break;
2808
2809	case VMMDevReq_GetHostVersion:
2810	pReqHdr->rc = vmmdevReqHandler_GetHostVersion(pReqHdr);
2811	break;
2812
2813	case VMMDevReq_GetCpuHotPlugRequest:
2814	pReqHdr->rc = vmmdevReqHandler_GetCpuHotPlugRequest(pThis, pReqHdr);
2815	break;
2816
2817	case VMMDevReq_SetCpuHotPlugStatus:
2818	pReqHdr->rc = vmmdevReqHandler_SetCpuHotPlugStatus(pThis, pReqHdr);
2819	break;
2820
2821	#ifdef VBOX_WITH_PAGE_SHARING
2822	case VMMDevReq_RegisterSharedModule:
2823	pReqHdr->rc = vmmdevReqHandler_RegisterSharedModule(pThis, pReqHdr);
2824	break;
2825
2826	case VMMDevReq_UnregisterSharedModule:
2827	pReqHdr->rc = vmmdevReqHandler_UnregisterSharedModule(pThis, pReqHdr);
2828	break;
2829
2830	case VMMDevReq_CheckSharedModules:
2831	pReqHdr->rc = vmmdevReqHandler_CheckSharedModules(pThis, pReqHdr);
2832	break;
2833
2834	case VMMDevReq_GetPageSharingStatus:
2835	pReqHdr->rc = vmmdevReqHandler_GetPageSharingStatus(pThis, pReqHdr);
2836	break;
2837
2838	case VMMDevReq_DebugIsPageShared:
2839	pReqHdr->rc = vmmdevReqHandler_DebugIsPageShared(pThis, pReqHdr);
2840	break;
2841
2842	#endif /* VBOX_WITH_PAGE_SHARING */
2843
2844	#ifdef DEBUG
2845	case VMMDevReq_LogString:
2846	pReqHdr->rc = vmmdevReqHandler_LogString(pReqHdr);
2847	break;
2848	#endif
2849
2850	case VMMDevReq_GetSessionId:
2851	pReqHdr->rc = vmmdevReqHandler_GetSessionId(pThis, pReqHdr);
2852	break;
2853
2854	/*
2855	* Guest wants to give up a timeslice.
2856	* Note! This was only ever used by experimental GAs!
2857	*/
2858	/** @todo maybe we could just remove this? */
2859	case VMMDevReq_Idle:
2860	{
2861	/* just return to EMT telling it that we want to halt */
2862	rcRet = VINF_EM_HALT;
2863	break;
2864	}
2865
2866	case VMMDevReq_GuestHeartbeat:
2867	pReqHdr->rc = vmmDevReqHandler_GuestHeartbeat(pThis);
2868	break;
2869
2870	case VMMDevReq_HeartbeatConfigure:
2871	pReqHdr->rc = vmmDevReqHandler_HeartbeatConfigure(pThis, pReqHdr);
2872	break;
2873
2874	case VMMDevReq_NtBugCheck:
2875	pReqHdr->rc = vmmDevReqHandler_NtBugCheck(pThis, pReqHdr);
2876	break;
2877
2878	default:
2879	{
2880	pReqHdr->rc = VERR_NOT_IMPLEMENTED;
2881	Log(("VMMDev unknown request type %d\n", pReqHdr->requestType));
2882	break;
2883	}
2884	}
2885	return rcRet;
2886	}
2887
2888
2889	/**
2890	* @callback_method_impl{FNIOMIOPORTOUT,
2891	* Port I/O write andler for the generic request interface.}
2892	*/
2893	static DECLCALLBACK(int) vmmdevRequestHandler(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
2894	{
2895	uint64_t tsArrival;
2896	STAM_GET_TS(tsArrival);
2897
2898	RT_NOREF2(Port, cb);
2899	PVMMDEV pThis = (VMMDevState *)pvUser;
2900
2901	/*
2902	* The caller has passed the guest context physical address of the request
2903	* structure. We'll copy all of it into a heap buffer eventually, but we
2904	* will have to start off with the header.
2905	*/
2906	VMMDevRequestHeader requestHeader;
2907	RT_ZERO(requestHeader);
2908	PDMDevHlpPhysRead(pDevIns, (RTGCPHYS)u32, &requestHeader, sizeof(requestHeader));
2909
2910	/* The structure size must be greater or equal to the header size. */
2911	if (requestHeader.size < sizeof(VMMDevRequestHeader))
2912	{
2913	Log(("VMMDev request header size too small! size = %d\n", requestHeader.size));
2914	return VINF_SUCCESS;
2915	}
2916
2917	/* Check the version of the header structure. */
2918	if (requestHeader.version != VMMDEV_REQUEST_HEADER_VERSION)
2919	{
2920	Log(("VMMDev: guest header version (0x%08X) differs from ours (0x%08X)\n", requestHeader.version, VMMDEV_REQUEST_HEADER_VERSION));
2921	return VINF_SUCCESS;
2922	}
2923
2924	Log2(("VMMDev request issued: %d\n", requestHeader.requestType));
2925
2926	int rcRet = VINF_SUCCESS;
2927	/* Check that is doesn't exceed the max packet size. */
2928	if (requestHeader.size <= VMMDEV_MAX_VMMDEVREQ_SIZE)
2929	{
2930	/*
2931	* We require the GAs to report it's information before we let it have
2932	* access to all the functions. The VMMDevReq_ReportGuestInfo request
2933	* is the one which unlocks the access. Newer additions will first
2934	* issue VMMDevReq_ReportGuestInfo2, older ones doesn't know this one.
2935	* Two exceptions: VMMDevReq_GetHostVersion and VMMDevReq_WriteCoreDump.
2936	*/
2937	if ( pThis->fu32AdditionsOk
2938	\|\| requestHeader.requestType == VMMDevReq_ReportGuestInfo2
2939	\|\| requestHeader.requestType == VMMDevReq_ReportGuestInfo
2940	\|\| requestHeader.requestType == VMMDevReq_WriteCoreDump
2941	\|\| requestHeader.requestType == VMMDevReq_GetHostVersion
2942	)
2943	{
2944	/*
2945	* The request looks fine. Copy it into a buffer.
2946	*
2947	* The buffer is only used while on this thread, and this thread is one
2948	* of the EMTs, so we keep a 4KB buffer for each EMT around to avoid
2949	* wasting time with the heap. Larger allocations goes to the heap, though.
2950	*/
2951	VMCPUID iCpu = PDMDevHlpGetCurrentCpuId(pDevIns);
2952	VMMDevRequestHeader *pRequestHeaderFree = NULL;
2953	VMMDevRequestHeader *pRequestHeader = NULL;
2954	if ( requestHeader.size <= _4K
2955	&& iCpu < RT_ELEMENTS(pThis->apReqBufs))
2956	{
2957	pRequestHeader = pThis->apReqBufs[iCpu];
2958	if (pRequestHeader)
2959	{ /* likely */ }
2960	else
2961	pThis->apReqBufs[iCpu] = pRequestHeader = (VMMDevRequestHeader *)RTMemPageAlloc(_4K);
2962	}
2963	else
2964	{
2965	Assert(iCpu != NIL_VMCPUID);
2966	STAM_REL_COUNTER_INC(&pThis->StatReqBufAllocs);
2967	pRequestHeaderFree = pRequestHeader = (VMMDevRequestHeader *)RTMemAlloc(RT_MAX(requestHeader.size, 512));
2968	}
2969	if (pRequestHeader)
2970	{
2971	memcpy(pRequestHeader, &requestHeader, sizeof(VMMDevRequestHeader));
2972
2973	/* Try lock the request if it's a HGCM call and not crossing a page boundrary.
2974	Saves on PGM interaction. */
2975	VMMDEVREQLOCK Lock = { NULL, { 0, NULL } };
2976	PVMMDEVREQLOCK pLock = NULL;
2977	size_t cbLeft = requestHeader.size - sizeof(VMMDevRequestHeader);
2978	if (cbLeft)
2979	{
2980	if ( ( requestHeader.requestType == VMMDevReq_HGCMCall32
2981	\|\| requestHeader.requestType == VMMDevReq_HGCMCall64)
2982	&& ((u32 + requestHeader.size) >> X86_PAGE_SHIFT) == (u32 >> X86_PAGE_SHIFT)
2983	&& RT_SUCCESS(PDMDevHlpPhysGCPhys2CCPtr(pDevIns, u32, 0 /fFlags/, &Lock.pvReq, &Lock.Lock)) )
2984	{
2985	memcpy((uint8_t *)pRequestHeader + sizeof(VMMDevRequestHeader),
2986	(uint8_t *)Lock.pvReq + sizeof(VMMDevRequestHeader), cbLeft);
2987	pLock = &Lock;
2988	}
2989	else
2990	PDMDevHlpPhysRead(pDevIns,
2991	(RTGCPHYS)u32 + sizeof(VMMDevRequestHeader),
2992	(uint8_t *)pRequestHeader + sizeof(VMMDevRequestHeader),
2993	cbLeft);
2994	}
2995
2996	/*
2997	* Feed buffered request thru the dispatcher.
2998	*/
2999	uint32_t fPostOptimize = 0;
3000	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3001	rcRet = vmmdevReqDispatcher(pThis, pRequestHeader, u32, tsArrival, &fPostOptimize, &pLock);
3002	PDMCritSectLeave(&pThis->CritSect);
3003
3004	/*
3005	* Write the result back to guest memory (unless it is a locked HGCM call).
3006	*/
3007	if (!(fPostOptimize & VMMDEVREQDISP_POST_F_NO_WRITE_OUT))
3008	{
3009	if (pLock)
3010	memcpy(pLock->pvReq, pRequestHeader, pRequestHeader->size);
3011	else
3012	PDMDevHlpPhysWrite(pDevIns, u32, pRequestHeader, pRequestHeader->size);
3013	}
3014
3015	if (!pRequestHeaderFree)
3016	{ /* likely */ }
3017	else
3018	RTMemFree(pRequestHeaderFree);
3019	return rcRet;
3020	}
3021
3022	Log(("VMMDev: RTMemAlloc failed!\n"));
3023	requestHeader.rc = VERR_NO_MEMORY;
3024	}
3025	else
3026	{
3027	LogRelMax(10, ("VMMDev: Guest has not yet reported to us -- refusing operation of request #%d\n",
3028	requestHeader.requestType));
3029	requestHeader.rc = VERR_NOT_SUPPORTED;
3030	}
3031	}
3032	else
3033	{
3034	LogRelMax(50, ("VMMDev: Request packet too big (%x), refusing operation\n", requestHeader.size));
3035	requestHeader.rc = VERR_NOT_SUPPORTED;
3036	}
3037
3038	/*
3039	* Write the result back to guest memory.
3040	*/
3041	PDMDevHlpPhysWrite(pDevIns, u32, &requestHeader, sizeof(requestHeader));
3042
3043	return rcRet;
3044	}
3045
3046	#endif /* IN_RING3 */
3047
3048
3049	/**
3050	* @callback_method_impl{FNIOMIOPORTOUT, Port I/O write handler for requests
3051	* that can be handled w/o going to ring-3.}
3052	*/
3053	PDMBOTHCBDECL(int) vmmdevFastRequestHandler(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
3054	{
3055	#ifndef IN_RING3
3056	# if 0 /* This functionality is offered through reading the port (vmmdevFastRequestIrqAck). Leaving it here for later. */
3057	PVMMDEV pThis = (VMMDevState *)pvUser;
3058	Assert(PDMINS_2_DATA(pDevIns, PVMMDEV) == pThis);
3059	RT_NOREF2(Port, cb);
3060
3061	/*
3062	* We only process a limited set of requests here, reflecting the rest down
3063	* to ring-3. So, try read the whole request into a stack buffer and check
3064	* if we can handle it.
3065	*/
3066	union
3067	{
3068	VMMDevRequestHeader Hdr;
3069	VMMDevEvents Ack;
3070	} uReq;
3071	RT_ZERO(uReq);
3072
3073	VBOXSTRICTRC rcStrict;
3074	if (pThis->fu32AdditionsOk)
3075	{
3076	/* Read it into memory. */
3077	uint32_t cbToRead = sizeof(uReq); /* (Adjust to stay within a page if we support more than ack requests.) */
3078	rcStrict = PDMDevHlpPhysRead(pDevIns, u32, &uReq, cbToRead);
3079	if (rcStrict == VINF_SUCCESS)
3080	{
3081	/*
3082	* Validate the request and check that we want to handle it here.
3083	*/
3084	if ( uReq.Hdr.size >= sizeof(uReq.Hdr)
3085	&& uReq.Hdr.version == VMMDEV_REQUEST_HEADER_VERSION
3086	&& ( uReq.Hdr.requestType == VMMDevReq_AcknowledgeEvents
3087	&& uReq.Hdr.size == sizeof(uReq.Ack)
3088	&& cbToRead == sizeof(uReq.Ack)
3089	&& pThis->CTX_SUFF(pVMMDevRAM) != NULL)
3090	)
3091	{
3092	RT_UNTRUSTED_VALIDATED_FENCE();
3093
3094	/*
3095	* Try grab the critical section.
3096	*/
3097	int rc2 = PDMCritSectEnter(&pThis->CritSect, VINF_IOM_R3_IOPORT_WRITE);
3098	if (rc2 == VINF_SUCCESS)
3099	{
3100	/*
3101	* Handle the request and write back the result to the guest.
3102	*/
3103	uReq.Hdr.rc = vmmdevReqHandler_AcknowledgeEvents(pThis, &uReq.Hdr);
3104
3105	rcStrict = PDMDevHlpPhysWrite(pDevIns, u32, &uReq, uReq.Hdr.size);
3106	PDMCritSectLeave(&pThis->CritSect);
3107	if (rcStrict == VINF_SUCCESS)
3108	{ /* likely */ }
3109	else
3110	Log(("vmmdevFastRequestHandler: PDMDevHlpPhysWrite(%#RX32+rc,4) -> %Rrc (%RTbool)\n",
3111	u32, VBOXSTRICTRC_VAL(rcStrict), PGM_PHYS_RW_IS_SUCCESS(rcStrict) ));
3112	}
3113	else
3114	{
3115	Log(("vmmdevFastRequestHandler: PDMCritSectEnter -> %Rrc\n", rc2));
3116	rcStrict = rc2;
3117	}
3118	}
3119	else
3120	{
3121	Log(("vmmdevFastRequestHandler: size=%#x version=%#x requestType=%d (pVMMDevRAM=%p) -> R3\n",
3122	uReq.Hdr.size, uReq.Hdr.version, uReq.Hdr.requestType, pThis->CTX_SUFF(pVMMDevRAM) ));
3123	rcStrict = VINF_IOM_R3_IOPORT_WRITE;
3124	}
3125	}
3126	else
3127	Log(("vmmdevFastRequestHandler: PDMDevHlpPhysRead(%#RX32,%#RX32) -> %Rrc\n", u32, cbToRead, VBOXSTRICTRC_VAL(rcStrict)));
3128	}
3129	else
3130	{
3131	Log(("vmmdevFastRequestHandler: additions nok-okay\n"));
3132	rcStrict = VINF_IOM_R3_IOPORT_WRITE;
3133	}
3134
3135	return VBOXSTRICTRC_VAL(rcStrict);
3136	# else
3137	RT_NOREF(pDevIns, pvUser, Port, u32, cb);
3138	return VINF_IOM_R3_IOPORT_WRITE;
3139	# endif
3140
3141	#else /* IN_RING3 */
3142	return vmmdevRequestHandler(pDevIns, pvUser, Port, u32, cb);
3143	#endif /* IN_RING3 */
3144	}
3145
3146
3147	/**
3148	* @callback_method_impl{FNIOMIOPORTIN,
3149	* Port I/O read handler for IRQ acknowledging and getting pending events (same
3150	* as VMMDevReq_AcknowledgeEvents - just faster).}
3151	*/
3152	PDMBOTHCBDECL(int) vmmdevFastRequestIrqAck(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
3153	{
3154	PVMMDEV pThis = (VMMDevState *)pvUser;
3155	Assert(PDMINS_2_DATA(pDevIns, PVMMDEV) == pThis);
3156	RT_NOREF(Port);
3157
3158	/* Only 32-bit accesses. */
3159	ASSERT_GUEST_MSG_RETURN(cb == sizeof(uint32_t), ("cb=%d\n", cb), VERR_IOM_IOPORT_UNUSED);
3160
3161	/* The VMMDev memory mapping might've failed, go to ring-3 in that case. */
3162	VBOXSTRICTRC rcStrict;
3163	#ifndef IN_RING3
3164	if (pThis->CTX_SUFF(pVMMDevRAM) != NULL)
3165	#endif
3166	{
3167	/* Enter critical section and check that the additions has been properly
3168	initialized and that we're not in legacy v1.3 device mode. */
3169	rcStrict = PDMCritSectEnter(&pThis->CritSect, VINF_IOM_R3_IOPORT_READ);
3170	if (rcStrict == VINF_SUCCESS)
3171	{
3172	if ( pThis->fu32AdditionsOk
3173	&& !VMMDEV_INTERFACE_VERSION_IS_1_03(pThis))
3174	{
3175	/*
3176	* Do the job.
3177	*
3178	* Note! This code is duplicated in vmmdevReqHandler_AcknowledgeEvents.
3179	*/
3180	STAM_REL_COUNTER_INC(&pThis->CTX_SUFF_Z(StatFastIrqAck));
3181
3182	if (pThis->fNewGuestFilterMask)
3183	{
3184	pThis->fNewGuestFilterMask = false;
3185	pThis->u32GuestFilterMask = pThis->u32NewGuestFilterMask;
3186	}
3187
3188	*pu32 = pThis->u32HostEventFlags & pThis->u32GuestFilterMask;
3189
3190	pThis->u32HostEventFlags &= ~pThis->u32GuestFilterMask;
3191	pThis->CTX_SUFF(pVMMDevRAM)->V.V1_04.fHaveEvents = false;
3192
3193	PDMDevHlpPCISetIrqNoWait(pDevIns, 0, 0);
3194	}
3195	else
3196	{
3197	Log(("vmmdevFastRequestIrqAck: fu32AdditionsOk=%d interfaceVersion=%#x\n", pThis->fu32AdditionsOk,
3198	pThis->guestInfo.interfaceVersion));
3199	*pu32 = UINT32_MAX;
3200	}
3201
3202	PDMCritSectLeave(&pThis->CritSect);
3203	}
3204	}
3205	#ifndef IN_RING3
3206	else
3207	rcStrict = VINF_IOM_R3_IOPORT_READ;
3208	#endif
3209	return VBOXSTRICTRC_VAL(rcStrict);
3210	}
3211
3212
3213
3214	#ifdef IN_RING3
3215
3216	/* -=-=-=-=-=- PCI Device -=-=-=-=-=- */
3217
3218
3219	/**
3220	* @callback_method_impl{FNPCIIOREGIONMAP,MMIO/MMIO2 regions}
3221	*/
3222	static DECLCALLBACK(int) vmmdevIORAMRegionMap(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion,
3223	RTGCPHYS GCPhysAddress, RTGCPHYS cb, PCIADDRESSSPACE enmType)
3224	{
3225	RT_NOREF1(cb);
3226	LogFlow(("vmmdevR3IORAMRegionMap: iRegion=%d GCPhysAddress=%RGp cb=%RGp enmType=%d\n", iRegion, GCPhysAddress, cb, enmType));
3227	PVMMDEV pThis = RT_FROM_MEMBER(pPciDev, VMMDEV, PciDev);
3228	int rc;
3229
3230	if (iRegion == 1)
3231	{
3232	AssertReturn(enmType == PCI_ADDRESS_SPACE_MEM, VERR_INTERNAL_ERROR);
3233	Assert(pThis->pVMMDevRAMR3 != NULL);
3234	if (GCPhysAddress != NIL_RTGCPHYS)
3235	{
3236	/*
3237	* Map the MMIO2 memory.
3238	*/
3239	pThis->GCPhysVMMDevRAM = GCPhysAddress;
3240	Assert(pThis->GCPhysVMMDevRAM == GCPhysAddress);
3241	rc = PDMDevHlpMMIOExMap(pDevIns, pPciDev, iRegion, GCPhysAddress);
3242	}
3243	else
3244	{
3245	/*
3246	* It is about to be unmapped, just clean up.
3247	*/
3248	pThis->GCPhysVMMDevRAM = NIL_RTGCPHYS32;
3249	rc = VINF_SUCCESS;
3250	}
3251	}
3252	else if (iRegion == 2)
3253	{
3254	AssertReturn(enmType == PCI_ADDRESS_SPACE_MEM_PREFETCH, VERR_INTERNAL_ERROR);
3255	Assert(pThis->pVMMDevHeapR3 != NULL);
3256	if (GCPhysAddress != NIL_RTGCPHYS)
3257	{
3258	/*
3259	* Map the MMIO2 memory.
3260	*/
3261	pThis->GCPhysVMMDevHeap = GCPhysAddress;
3262	Assert(pThis->GCPhysVMMDevHeap == GCPhysAddress);
3263	rc = PDMDevHlpMMIOExMap(pDevIns, pPciDev, iRegion, GCPhysAddress);
3264	if (RT_SUCCESS(rc))
3265	rc = PDMDevHlpRegisterVMMDevHeap(pDevIns, GCPhysAddress, pThis->pVMMDevHeapR3, VMMDEV_HEAP_SIZE);
3266	}
3267	else
3268	{
3269	/*
3270	* It is about to be unmapped, just clean up.
3271	*/
3272	PDMDevHlpRegisterVMMDevHeap(pDevIns, NIL_RTGCPHYS, pThis->pVMMDevHeapR3, VMMDEV_HEAP_SIZE);
3273	pThis->GCPhysVMMDevHeap = NIL_RTGCPHYS32;
3274	rc = VINF_SUCCESS;
3275	}
3276	}
3277	else
3278	{
3279	AssertMsgFailed(("%d\n", iRegion));
3280	rc = VERR_INVALID_PARAMETER;
3281	}
3282
3283	return rc;
3284	}
3285
3286
3287	/**
3288	* @callback_method_impl{FNPCIIOREGIONMAP,I/O Port Region}
3289	*/
3290	static DECLCALLBACK(int) vmmdevIOPortRegionMap(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion,
3291	RTGCPHYS GCPhysAddress, RTGCPHYS cb, PCIADDRESSSPACE enmType)
3292	{
3293	LogFlow(("vmmdevIOPortRegionMap: iRegion=%d GCPhysAddress=%RGp cb=%RGp enmType=%d\n", iRegion, GCPhysAddress, cb, enmType));
3294	RT_NOREF3(iRegion, cb, enmType);
3295	PVMMDEV pThis = RT_FROM_MEMBER(pPciDev, VMMDEV, PciDev);
3296
3297	Assert(enmType == PCI_ADDRESS_SPACE_IO);
3298	Assert(iRegion == 0);
3299	AssertMsg(RT_ALIGN(GCPhysAddress, 8) == GCPhysAddress, ("Expected 8 byte alignment. GCPhysAddress=%#x\n", GCPhysAddress));
3300
3301	/*
3302	* Register our port IO handlers.
3303	*/
3304	int rc = PDMDevHlpIOPortRegister(pDevIns, (RTIOPORT)GCPhysAddress + VMMDEV_PORT_OFF_REQUEST, 1,
3305	pThis, vmmdevRequestHandler, NULL, NULL, NULL, "VMMDev Request Handler");
3306	AssertLogRelRCReturn(rc, rc);
3307
3308	/* The fast one: */
3309	rc = PDMDevHlpIOPortRegister(pDevIns, (RTIOPORT)GCPhysAddress + VMMDEV_PORT_OFF_REQUEST_FAST, 1,
3310	pThis, vmmdevFastRequestHandler, vmmdevFastRequestIrqAck, NULL, NULL, "VMMDev Fast R0/RC Requests");
3311	AssertLogRelRCReturn(rc, rc);
3312	if (pThis->fRZEnabled)
3313	{
3314	rc = PDMDevHlpIOPortRegisterR0(pDevIns, (RTIOPORT)GCPhysAddress + VMMDEV_PORT_OFF_REQUEST_FAST, 1,
3315	PDMINS_2_DATA_R0PTR(pDevIns), "vmmdevFastRequestHandler", "vmmdevFastRequestIrqAck",
3316	NULL, NULL, "VMMDev Fast R0/RC Requests");
3317	AssertLogRelRCReturn(rc, rc);
3318	rc = PDMDevHlpIOPortRegisterRC(pDevIns, (RTIOPORT)GCPhysAddress + VMMDEV_PORT_OFF_REQUEST_FAST, 1,
3319	PDMINS_2_DATA_RCPTR(pDevIns), "vmmdevFastRequestHandler", "vmmdevFastRequestIrqAck",
3320	NULL, NULL, "VMMDev Fast R0/RC Requests");
3321	AssertLogRelRCReturn(rc, rc);
3322	}
3323
3324	return rc;
3325	}
3326
3327
3328
3329	/* -=-=-=-=-=- Backdoor Logging and Time Sync. -=-=-=-=-=- */
3330
3331	/**
3332	* @callback_method_impl{FNIOMIOPORTOUT, Backdoor Logging.}
3333	*/
3334	static DECLCALLBACK(int) vmmdevBackdoorLog(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
3335	{
3336	RT_NOREF1(pvUser);
3337	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, VMMDevState *);
3338
3339	if (!pThis->fBackdoorLogDisabled && cb == 1 && Port == RTLOG_DEBUG_PORT)
3340	{
3341
3342	/* The raw version. */
3343	switch (u32)
3344	{
3345	case '\r': LogIt(RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP_DEV_VMM_BACKDOOR, ("vmmdev: <return>\n")); break;
3346	case '\n': LogIt(RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP_DEV_VMM_BACKDOOR, ("vmmdev: <newline>\n")); break;
3347	case '\t': LogIt(RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP_DEV_VMM_BACKDOOR, ("vmmdev: <tab>\n")); break;
3348	default: LogIt(RTLOGGRPFLAGS_LEVEL_2, LOG_GROUP_DEV_VMM_BACKDOOR, ("vmmdev: %c (%02x)\n", u32, u32)); break;
3349	}
3350
3351	/* The readable, buffered version. */
3352	if (u32 == '\n' \|\| u32 == '\r')
3353	{
3354	pThis->szMsg[pThis->iMsg] = '\0';
3355	if (pThis->iMsg)
3356	LogRelIt(RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP_DEV_VMM_BACKDOOR, ("VMMDev: Guest Log: %s\n", pThis->szMsg));
3357	pThis->iMsg = 0;
3358	}
3359	else
3360	{
3361	if (pThis->iMsg >= sizeof(pThis->szMsg)-1)
3362	{
3363	pThis->szMsg[pThis->iMsg] = '\0';
3364	LogRelIt(RTLOGGRPFLAGS_LEVEL_1, LOG_GROUP_DEV_VMM_BACKDOOR, ("VMMDev: Guest Log: %s\n", pThis->szMsg));
3365	pThis->iMsg = 0;
3366	}
3367	pThis->szMsg[pThis->iMsg] = (char )u32;
3368	pThis->szMsg[++pThis->iMsg] = '\0';
3369	}
3370	}
3371	return VINF_SUCCESS;
3372	}
3373
3374	#ifdef VMMDEV_WITH_ALT_TIMESYNC
3375
3376	/**
3377	* @callback_method_impl{FNIOMIOPORTOUT, Alternative time synchronization.}
3378	*/
3379	static DECLCALLBACK(int) vmmdevAltTimeSyncWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
3380	{
3381	RT_NOREF2(pvUser, Port);
3382	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, VMMDevState *);
3383	if (cb == 4)
3384	{
3385	/* Selects high (0) or low (1) DWORD. The high has to be read first. */
3386	switch (u32)
3387	{
3388	case 0:
3389	pThis->fTimesyncBackdoorLo = false;
3390	break;
3391	case 1:
3392	pThis->fTimesyncBackdoorLo = true;
3393	break;
3394	default:
3395	Log(("vmmdevAltTimeSyncWrite: Invalid access cb=%#x u32=%#x\n", cb, u32));
3396	break;
3397	}
3398	}
3399	else
3400	Log(("vmmdevAltTimeSyncWrite: Invalid access cb=%#x u32=%#x\n", cb, u32));
3401	return VINF_SUCCESS;
3402	}
3403
3404	/**
3405	* @callback_method_impl{FNIOMIOPORTOUT, Alternative time synchronization.}
3406	*/
3407	static DECLCALLBACK(int) vmmdevAltTimeSyncRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
3408	{
3409	RT_NOREF2(pvUser, Port);
3410	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, VMMDevState *);
3411	int rc;
3412	if (cb == 4)
3413	{
3414	if (pThis->fTimesyncBackdoorLo)
3415	*pu32 = (uint32_t)pThis->hostTime;
3416	else
3417	{
3418	/* Reading the high dword gets and saves the current time. */
3419	RTTIMESPEC Now;
3420	pThis->hostTime = RTTimeSpecGetMilli(PDMDevHlpTMUtcNow(pDevIns, &Now));
3421	*pu32 = (uint32_t)(pThis->hostTime >> 32);
3422	}
3423	rc = VINF_SUCCESS;
3424	}
3425	else
3426	{
3427	Log(("vmmdevAltTimeSyncRead: Invalid access cb=%#x\n", cb));
3428	rc = VERR_IOM_IOPORT_UNUSED;
3429	}
3430	return rc;
3431	}
3432
3433	#endif /* VMMDEV_WITH_ALT_TIMESYNC */
3434
3435
3436	/* -=-=-=-=-=- IBase -=-=-=-=-=- */
3437
3438	/**
3439	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
3440	*/
3441	static DECLCALLBACK(void ) vmmdevPortQueryInterface(PPDMIBASE pInterface, const char pszIID)
3442	{
3443	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IBase);
3444
3445	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pThis->IBase);
3446	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIVMMDEVPORT, &pThis->IPort);
3447	#ifdef VBOX_WITH_HGCM
3448	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIHGCMPORT, &pThis->IHGCMPort);
3449	#endif
3450	/* Currently only for shared folders. */
3451	PDMIBASE_RETURN_INTERFACE(pszIID, PDMILEDPORTS, &pThis->SharedFolders.ILeds);
3452	return NULL;
3453	}
3454
3455
3456	/* -=-=-=-=-=- ILeds -=-=-=-=-=- */
3457
3458	/**
3459	* Gets the pointer to the status LED of a unit.
3460	*
3461	* @returns VBox status code.
3462	* @param pInterface Pointer to the interface structure containing the called function pointer.
3463	* @param iLUN The unit which status LED we desire.
3464	* @param ppLed Where to store the LED pointer.
3465	*/
3466	static DECLCALLBACK(int) vmmdevQueryStatusLed(PPDMILEDPORTS pInterface, unsigned iLUN, PPDMLED *ppLed)
3467	{
3468	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, SharedFolders.ILeds);
3469	if (iLUN == 0) /* LUN 0 is shared folders */
3470	{
3471	*ppLed = &pThis->SharedFolders.Led;
3472	return VINF_SUCCESS;
3473	}
3474	return VERR_PDM_LUN_NOT_FOUND;
3475	}
3476
3477
3478	/* -=-=-=-=-=- PDMIVMMDEVPORT (VMMDEV::IPort) -=-=-=-=-=- */
3479
3480	/**
3481	* @interface_method_impl{PDMIVMMDEVPORT,pfnQueryAbsoluteMouse}
3482	*/
3483	static DECLCALLBACK(int) vmmdevIPort_QueryAbsoluteMouse(PPDMIVMMDEVPORT pInterface, int32_t pxAbs, int32_t pyAbs)
3484	{
3485	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3486
3487	/** @todo at the first sign of trouble in this area, just enter the critsect.
3488	* As indicated by the comment below, the atomic reads serves no real purpose
3489	* here since we can assume cache coherency protocoles and int32_t alignment
3490	* rules making sure we won't see a halfwritten value. */
3491	if (pxAbs)
3492	pxAbs = ASMAtomicReadS32(&pThis->mouseXAbs); / why the atomic read? */
3493	if (pyAbs)
3494	*pyAbs = ASMAtomicReadS32(&pThis->mouseYAbs);
3495
3496	return VINF_SUCCESS;
3497	}
3498
3499	/**
3500	* @interface_method_impl{PDMIVMMDEVPORT,pfnSetAbsoluteMouse}
3501	*/
3502	static DECLCALLBACK(int) vmmdevIPort_SetAbsoluteMouse(PPDMIVMMDEVPORT pInterface, int32_t xAbs, int32_t yAbs)
3503	{
3504	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3505	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3506
3507	if ( pThis->mouseXAbs != xAbs
3508	\|\| pThis->mouseYAbs != yAbs)
3509	{
3510	Log2(("vmmdevIPort_SetAbsoluteMouse : settings absolute position to x = %d, y = %d\n", xAbs, yAbs));
3511	pThis->mouseXAbs = xAbs;
3512	pThis->mouseYAbs = yAbs;
3513	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_MOUSE_POSITION_CHANGED);
3514	}
3515
3516	PDMCritSectLeave(&pThis->CritSect);
3517	return VINF_SUCCESS;
3518	}
3519
3520	/**
3521	* @interface_method_impl{PDMIVMMDEVPORT,pfnQueryMouseCapabilities}
3522	*/
3523	static DECLCALLBACK(int) vmmdevIPort_QueryMouseCapabilities(PPDMIVMMDEVPORT pInterface, uint32_t *pfCapabilities)
3524	{
3525	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3526	AssertPtrReturn(pfCapabilities, VERR_INVALID_PARAMETER);
3527
3528	*pfCapabilities = pThis->mouseCapabilities;
3529	return VINF_SUCCESS;
3530	}
3531
3532	/**
3533	* @interface_method_impl{PDMIVMMDEVPORT,pfnUpdateMouseCapabilities}
3534	*/
3535	static DECLCALLBACK(int)
3536	vmmdevIPort_UpdateMouseCapabilities(PPDMIVMMDEVPORT pInterface, uint32_t fCapsAdded, uint32_t fCapsRemoved)
3537	{
3538	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3539	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3540
3541	uint32_t fOldCaps = pThis->mouseCapabilities;
3542	pThis->mouseCapabilities &= ~(fCapsRemoved & VMMDEV_MOUSE_HOST_MASK);
3543	pThis->mouseCapabilities \|= (fCapsAdded & VMMDEV_MOUSE_HOST_MASK)
3544	\| VMMDEV_MOUSE_HOST_RECHECKS_NEEDS_HOST_CURSOR;
3545	bool fNotify = fOldCaps != pThis->mouseCapabilities;
3546
3547	LogRelFlow(("VMMDev: vmmdevIPort_UpdateMouseCapabilities: fCapsAdded=0x%x, fCapsRemoved=0x%x, fNotify=%RTbool\n", fCapsAdded,
3548	fCapsRemoved, fNotify));
3549
3550	if (fNotify)
3551	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_MOUSE_CAPABILITIES_CHANGED);
3552
3553	PDMCritSectLeave(&pThis->CritSect);
3554	return VINF_SUCCESS;
3555	}
3556
3557	static bool vmmdevIsMonitorDefEqual(VMMDevDisplayDef const pNew, VMMDevDisplayDef const pOld)
3558	{
3559	bool fEqual = pNew->idDisplay == pOld->idDisplay;
3560
3561	fEqual = fEqual && ( !RT_BOOL(pNew->fDisplayFlags & VMMDEV_DISPLAY_ORIGIN) /* No change. */
3562	\|\| ( RT_BOOL(pOld->fDisplayFlags & VMMDEV_DISPLAY_ORIGIN) /* Old value exists and */
3563	&& pNew->xOrigin == pOld->xOrigin /* the old is equal to the new. */
3564	&& pNew->yOrigin == pOld->yOrigin));
3565
3566	fEqual = fEqual && ( !RT_BOOL(pNew->fDisplayFlags & VMMDEV_DISPLAY_CX)
3567	\|\| ( RT_BOOL(pOld->fDisplayFlags & VMMDEV_DISPLAY_CX)
3568	&& pNew->cx == pOld->cx));
3569
3570	fEqual = fEqual && ( !RT_BOOL(pNew->fDisplayFlags & VMMDEV_DISPLAY_CY)
3571	\|\| ( RT_BOOL(pOld->fDisplayFlags & VMMDEV_DISPLAY_CY)
3572	&& pNew->cy == pOld->cy));
3573
3574	fEqual = fEqual && ( !RT_BOOL(pNew->fDisplayFlags & VMMDEV_DISPLAY_BPP)
3575	\|\| ( RT_BOOL(pOld->fDisplayFlags & VMMDEV_DISPLAY_BPP)
3576	&& pNew->cBitsPerPixel == pOld->cBitsPerPixel));
3577
3578	fEqual = fEqual && ( RT_BOOL(pNew->fDisplayFlags & VMMDEV_DISPLAY_DISABLED)
3579	== RT_BOOL(pOld->fDisplayFlags & VMMDEV_DISPLAY_DISABLED));
3580
3581	fEqual = fEqual && ( RT_BOOL(pNew->fDisplayFlags & VMMDEV_DISPLAY_PRIMARY)
3582	== RT_BOOL(pOld->fDisplayFlags & VMMDEV_DISPLAY_PRIMARY));
3583
3584	return fEqual;
3585	}
3586
3587	/**
3588	* @interface_method_impl{PDMIVMMDEVPORT,pfnRequestDisplayChange}
3589	*/
3590	static DECLCALLBACK(int)
3591	vmmdevIPort_RequestDisplayChange(PPDMIVMMDEVPORT pInterface, uint32_t cDisplays, VMMDevDisplayDef const *paDisplays, bool fForce)
3592	{
3593	int rc = VINF_SUCCESS;
3594
3595	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3596	bool fNotifyGuest = false;
3597
3598	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3599
3600	uint32_t i;
3601	for (i = 0; i < cDisplays; ++i)
3602	{
3603	VMMDevDisplayDef const *p = &paDisplays[i];
3604
3605	/* Either one display definition is provided or the display id must be equal to the array index. */
3606	AssertBreakStmt(cDisplays == 1 \|\| p->idDisplay == i, rc = VERR_INVALID_PARAMETER);
3607	AssertBreakStmt(p->idDisplay < RT_ELEMENTS(pThis->displayChangeData.aRequests), rc = VERR_INVALID_PARAMETER);
3608
3609	DISPLAYCHANGEREQUEST *pRequest = &pThis->displayChangeData.aRequests[p->idDisplay];
3610
3611	VMMDevDisplayDef const *pLastRead = &pRequest->lastReadDisplayChangeRequest;
3612
3613	/* Verify that the new resolution is different and that guest does not yet know about it. */
3614	bool const fDifferentResolution = fForce \|\| !vmmdevIsMonitorDefEqual(p, pLastRead);
3615
3616	LogFunc(("same=%d. New: %dx%d, cBits=%d, id=%d. Old: %dx%d, cBits=%d, id=%d. @%d,%d, Enabled=%d, ChangeOrigin=%d\n",
3617	!fDifferentResolution, p->cx, p->cy, p->cBitsPerPixel, p->idDisplay,
3618	pLastRead->cx, pLastRead->cy, pLastRead->cBitsPerPixel, pLastRead->idDisplay,
3619	p->xOrigin, p->yOrigin,
3620	!RT_BOOL(p->fDisplayFlags & VMMDEV_DISPLAY_DISABLED),
3621	RT_BOOL(p->fDisplayFlags & VMMDEV_DISPLAY_ORIGIN)));
3622
3623	/* We could validate the information here but hey, the guest can do that as well! */
3624	pRequest->displayChangeRequest = *p;
3625	pRequest->fPending = fDifferentResolution;
3626
3627	fNotifyGuest = fNotifyGuest \|\| fDifferentResolution;
3628	}
3629
3630	if (RT_SUCCESS(rc))
3631	{
3632	if (fNotifyGuest)
3633	{
3634	for (i = 0; i < RT_ELEMENTS(pThis->displayChangeData.aRequests); ++i)
3635	{
3636	DISPLAYCHANGEREQUEST *pRequest = &pThis->displayChangeData.aRequests[i];
3637	if (pRequest->fPending)
3638	{
3639	VMMDevDisplayDef const *p = &pRequest->displayChangeRequest;
3640	LogRel(("VMMDev: SetVideoModeHint: Got a video mode hint (%dx%dx%d)@(%dx%d),(%d;%d) at %d\n",
3641	p->cx, p->cy, p->cBitsPerPixel, p->xOrigin, p->yOrigin,
3642	!RT_BOOL(p->fDisplayFlags & VMMDEV_DISPLAY_DISABLED),
3643	RT_BOOL(p->fDisplayFlags & VMMDEV_DISPLAY_ORIGIN), i));
3644	}
3645	}
3646
3647	/* IRQ so the guest knows what's going on */
3648	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST);
3649	}
3650	}
3651
3652	PDMCritSectLeave(&pThis->CritSect);
3653	return rc;
3654	}
3655
3656	/**
3657	* @interface_method_impl{PDMIVMMDEVPORT,pfnRequestSeamlessChange}
3658	*/
3659	static DECLCALLBACK(int) vmmdevIPort_RequestSeamlessChange(PPDMIVMMDEVPORT pInterface, bool fEnabled)
3660	{
3661	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3662	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3663
3664	/* Verify that the new resolution is different and that guest does not yet know about it. */
3665	bool fSameMode = (pThis->fLastSeamlessEnabled == fEnabled);
3666
3667	Log(("vmmdevIPort_RequestSeamlessChange: same=%d. new=%d\n", fSameMode, fEnabled));
3668
3669	if (!fSameMode)
3670	{
3671	/* we could validate the information here but hey, the guest can do that as well! */
3672	pThis->fSeamlessEnabled = fEnabled;
3673
3674	/* IRQ so the guest knows what's going on */
3675	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_SEAMLESS_MODE_CHANGE_REQUEST);
3676	}
3677
3678	PDMCritSectLeave(&pThis->CritSect);
3679	return VINF_SUCCESS;
3680	}
3681
3682	/**
3683	* @interface_method_impl{PDMIVMMDEVPORT,pfnSetMemoryBalloon}
3684	*/
3685	static DECLCALLBACK(int) vmmdevIPort_SetMemoryBalloon(PPDMIVMMDEVPORT pInterface, uint32_t cMbBalloon)
3686	{
3687	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3688	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3689
3690	/* Verify that the new resolution is different and that guest does not yet know about it. */
3691	Log(("vmmdevIPort_SetMemoryBalloon: old=%u new=%u\n", pThis->cMbMemoryBalloonLast, cMbBalloon));
3692	if (pThis->cMbMemoryBalloonLast != cMbBalloon)
3693	{
3694	/* we could validate the information here but hey, the guest can do that as well! */
3695	pThis->cMbMemoryBalloon = cMbBalloon;
3696
3697	/* IRQ so the guest knows what's going on */
3698	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_BALLOON_CHANGE_REQUEST);
3699	}
3700
3701	PDMCritSectLeave(&pThis->CritSect);
3702	return VINF_SUCCESS;
3703	}
3704
3705	/**
3706	* @interface_method_impl{PDMIVMMDEVPORT,pfnVRDPChange}
3707	*/
3708	static DECLCALLBACK(int) vmmdevIPort_VRDPChange(PPDMIVMMDEVPORT pInterface, bool fVRDPEnabled, uint32_t uVRDPExperienceLevel)
3709	{
3710	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3711	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3712
3713	bool fSame = (pThis->fVRDPEnabled == fVRDPEnabled);
3714
3715	Log(("vmmdevIPort_VRDPChange: old=%d. new=%d\n", pThis->fVRDPEnabled, fVRDPEnabled));
3716
3717	if (!fSame)
3718	{
3719	pThis->fVRDPEnabled = fVRDPEnabled;
3720	pThis->uVRDPExperienceLevel = uVRDPExperienceLevel;
3721
3722	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_VRDP);
3723	}
3724
3725	PDMCritSectLeave(&pThis->CritSect);
3726	return VINF_SUCCESS;
3727	}
3728
3729	/**
3730	* @interface_method_impl{PDMIVMMDEVPORT,pfnSetStatisticsInterval}
3731	*/
3732	static DECLCALLBACK(int) vmmdevIPort_SetStatisticsInterval(PPDMIVMMDEVPORT pInterface, uint32_t cSecsStatInterval)
3733	{
3734	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3735	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3736
3737	/* Verify that the new resolution is different and that guest does not yet know about it. */
3738	bool fSame = (pThis->u32LastStatIntervalSize == cSecsStatInterval);
3739
3740	Log(("vmmdevIPort_SetStatisticsInterval: old=%d. new=%d\n", pThis->u32LastStatIntervalSize, cSecsStatInterval));
3741
3742	if (!fSame)
3743	{
3744	/* we could validate the information here but hey, the guest can do that as well! */
3745	pThis->u32StatIntervalSize = cSecsStatInterval;
3746
3747	/* IRQ so the guest knows what's going on */
3748	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_STATISTICS_INTERVAL_CHANGE_REQUEST);
3749	}
3750
3751	PDMCritSectLeave(&pThis->CritSect);
3752	return VINF_SUCCESS;
3753	}
3754
3755	/**
3756	* @interface_method_impl{PDMIVMMDEVPORT,pfnSetCredentials}
3757	*/
3758	static DECLCALLBACK(int) vmmdevIPort_SetCredentials(PPDMIVMMDEVPORT pInterface, const char *pszUsername,
3759	const char pszPassword, const char pszDomain, uint32_t fFlags)
3760	{
3761	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3762	AssertReturn(fFlags & (VMMDEV_SETCREDENTIALS_GUESTLOGON \| VMMDEV_SETCREDENTIALS_JUDGE), VERR_INVALID_PARAMETER);
3763	size_t const cchUsername = strlen(pszUsername);
3764	AssertReturn(cchUsername < VMMDEV_CREDENTIALS_SZ_SIZE, VERR_BUFFER_OVERFLOW);
3765	size_t const cchPassword = strlen(pszPassword);
3766	AssertReturn(cchPassword < VMMDEV_CREDENTIALS_SZ_SIZE, VERR_BUFFER_OVERFLOW);
3767	size_t const cchDomain = strlen(pszDomain);
3768	AssertReturn(cchDomain < VMMDEV_CREDENTIALS_SZ_SIZE, VERR_BUFFER_OVERFLOW);
3769
3770	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3771
3772	/*
3773	* Logon mode
3774	*/
3775	if (fFlags & VMMDEV_SETCREDENTIALS_GUESTLOGON)
3776	{
3777	/* memorize the data */
3778	memcpy(pThis->pCredentials->Logon.szUserName, pszUsername, cchUsername);
3779	pThis->pCredentials->Logon.szUserName[cchUsername] = '\0';
3780	memcpy(pThis->pCredentials->Logon.szPassword, pszPassword, cchPassword);
3781	pThis->pCredentials->Logon.szPassword[cchPassword] = '\0';
3782	memcpy(pThis->pCredentials->Logon.szDomain, pszDomain, cchDomain);
3783	pThis->pCredentials->Logon.szDomain[cchDomain] = '\0';
3784	pThis->pCredentials->Logon.fAllowInteractiveLogon = !(fFlags & VMMDEV_SETCREDENTIALS_NOLOCALLOGON);
3785	}
3786	/*
3787	* Credentials verification mode?
3788	*/
3789	else
3790	{
3791	/* memorize the data */
3792	memcpy(pThis->pCredentials->Judge.szUserName, pszUsername, cchUsername);
3793	pThis->pCredentials->Judge.szUserName[cchUsername] = '\0';
3794	memcpy(pThis->pCredentials->Judge.szPassword, pszPassword, cchPassword);
3795	pThis->pCredentials->Judge.szPassword[cchPassword] = '\0';
3796	memcpy(pThis->pCredentials->Judge.szDomain, pszDomain, cchDomain);
3797	pThis->pCredentials->Judge.szDomain[cchDomain] = '\0';
3798
3799	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_JUDGE_CREDENTIALS);
3800	}
3801
3802	PDMCritSectLeave(&pThis->CritSect);
3803	return VINF_SUCCESS;
3804	}
3805
3806	/**
3807	* @interface_method_impl{PDMIVMMDEVPORT,pfnVBVAChange}
3808	*
3809	* Notification from the Display. Especially useful when acceleration is
3810	* disabled after a video mode change.
3811	*/
3812	static DECLCALLBACK(void) vmmdevIPort_VBVAChange(PPDMIVMMDEVPORT pInterface, bool fEnabled)
3813	{
3814	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3815	Log(("vmmdevIPort_VBVAChange: fEnabled = %d\n", fEnabled));
3816
3817	/* Only used by saved state, which I guess is why we don't bother with locking here. */
3818	pThis->u32VideoAccelEnabled = fEnabled;
3819	}
3820
3821	/**
3822	* @interface_method_impl{PDMIVMMDEVPORT,pfnCpuHotUnplug}
3823	*/
3824	static DECLCALLBACK(int) vmmdevIPort_CpuHotUnplug(PPDMIVMMDEVPORT pInterface, uint32_t idCpuCore, uint32_t idCpuPackage)
3825	{
3826	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3827	int rc = VINF_SUCCESS;
3828
3829	Log(("vmmdevIPort_CpuHotUnplug: idCpuCore=%u idCpuPackage=%u\n", idCpuCore, idCpuPackage));
3830
3831	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3832
3833	if (pThis->fCpuHotPlugEventsEnabled)
3834	{
3835	pThis->enmCpuHotPlugEvent = VMMDevCpuEventType_Unplug;
3836	pThis->idCpuCore = idCpuCore;
3837	pThis->idCpuPackage = idCpuPackage;
3838	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_CPU_HOTPLUG);
3839	}
3840	else
3841	rc = VERR_VMMDEV_CPU_HOTPLUG_NOT_MONITORED_BY_GUEST;
3842
3843	PDMCritSectLeave(&pThis->CritSect);
3844	return rc;
3845	}
3846
3847	/**
3848	* @interface_method_impl{PDMIVMMDEVPORT,pfnCpuHotPlug}
3849	*/
3850	static DECLCALLBACK(int) vmmdevIPort_CpuHotPlug(PPDMIVMMDEVPORT pInterface, uint32_t idCpuCore, uint32_t idCpuPackage)
3851	{
3852	PVMMDEV pThis = RT_FROM_MEMBER(pInterface, VMMDEV, IPort);
3853	int rc = VINF_SUCCESS;
3854
3855	Log(("vmmdevCpuPlug: idCpuCore=%u idCpuPackage=%u\n", idCpuCore, idCpuPackage));
3856
3857	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3858
3859	if (pThis->fCpuHotPlugEventsEnabled)
3860	{
3861	pThis->enmCpuHotPlugEvent = VMMDevCpuEventType_Plug;
3862	pThis->idCpuCore = idCpuCore;
3863	pThis->idCpuPackage = idCpuPackage;
3864	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_CPU_HOTPLUG);
3865	}
3866	else
3867	rc = VERR_VMMDEV_CPU_HOTPLUG_NOT_MONITORED_BY_GUEST;
3868
3869	PDMCritSectLeave(&pThis->CritSect);
3870	return rc;
3871	}
3872
3873
3874	/* -=-=-=-=-=- Saved State -=-=-=-=-=- */
3875
3876	/**
3877	* @callback_method_impl{FNSSMDEVLIVEEXEC}
3878	*/
3879	static DECLCALLBACK(int) vmmdevLiveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uPass)
3880	{
3881	RT_NOREF1(uPass);
3882	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, PVMMDEV);
3883
3884	SSMR3PutBool(pSSM, pThis->fGetHostTimeDisabled);
3885	SSMR3PutBool(pSSM, pThis->fBackdoorLogDisabled);
3886	SSMR3PutBool(pSSM, pThis->fKeepCredentials);
3887	SSMR3PutBool(pSSM, pThis->fHeapEnabled);
3888
3889	return VINF_SSM_DONT_CALL_AGAIN;
3890	}
3891
3892
3893	/**
3894	* @callback_method_impl{FNSSMDEVSAVEEXEC}
3895	*/
3896	static DECLCALLBACK(int) vmmdevSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
3897	{
3898	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, PVMMDEV);
3899	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
3900
3901	vmmdevLiveExec(pDevIns, pSSM, SSM_PASS_FINAL);
3902
3903	SSMR3PutU32(pSSM, pThis->hypervisorSize);
3904	SSMR3PutU32(pSSM, pThis->mouseCapabilities);
3905	SSMR3PutS32(pSSM, pThis->mouseXAbs);
3906	SSMR3PutS32(pSSM, pThis->mouseYAbs);
3907
3908	SSMR3PutBool(pSSM, pThis->fNewGuestFilterMask);
3909	SSMR3PutU32(pSSM, pThis->u32NewGuestFilterMask);
3910	SSMR3PutU32(pSSM, pThis->u32GuestFilterMask);
3911	SSMR3PutU32(pSSM, pThis->u32HostEventFlags);
3912	/* The following is not strictly necessary as PGM restores MMIO2, keeping it for historical reasons. */
3913	SSMR3PutMem(pSSM, &pThis->pVMMDevRAMR3->V, sizeof(pThis->pVMMDevRAMR3->V));
3914
3915	SSMR3PutMem(pSSM, &pThis->guestInfo, sizeof(pThis->guestInfo));
3916	SSMR3PutU32(pSSM, pThis->fu32AdditionsOk);
3917	SSMR3PutU32(pSSM, pThis->u32VideoAccelEnabled);
3918	SSMR3PutBool(pSSM, pThis->displayChangeData.fGuestSentChangeEventAck);
3919
3920	SSMR3PutU32(pSSM, pThis->guestCaps);
3921
3922	#ifdef VBOX_WITH_HGCM
3923	vmmdevHGCMSaveState(pThis, pSSM);
3924	#endif /* VBOX_WITH_HGCM */
3925
3926	SSMR3PutU32(pSSM, pThis->fHostCursorRequested);
3927
3928	SSMR3PutU32(pSSM, pThis->guestInfo2.uFullVersion);
3929	SSMR3PutU32(pSSM, pThis->guestInfo2.uRevision);
3930	SSMR3PutU32(pSSM, pThis->guestInfo2.fFeatures);
3931	SSMR3PutStrZ(pSSM, pThis->guestInfo2.szName);
3932	SSMR3PutU32(pSSM, pThis->cFacilityStatuses);
3933	for (uint32_t i = 0; i < pThis->cFacilityStatuses; i++)
3934	{
3935	SSMR3PutU32(pSSM, pThis->aFacilityStatuses[i].enmFacility);
3936	SSMR3PutU32(pSSM, pThis->aFacilityStatuses[i].fFlags);
3937	SSMR3PutU16(pSSM, (uint16_t)pThis->aFacilityStatuses[i].enmStatus);
3938	SSMR3PutS64(pSSM, RTTimeSpecGetNano(&pThis->aFacilityStatuses[i].TimeSpecTS));
3939	}
3940
3941	/* Heartbeat: */
3942	SSMR3PutBool(pSSM, pThis->fHeartbeatActive);
3943	SSMR3PutBool(pSSM, pThis->fFlatlined);
3944	SSMR3PutU64(pSSM, pThis->nsLastHeartbeatTS);
3945	TMR3TimerSave(pThis->pFlatlinedTimer, pSSM);
3946
3947	PDMCritSectLeave(&pThis->CritSect);
3948	return VINF_SUCCESS;
3949	}
3950
3951	/**
3952	* @callback_method_impl{FNSSMDEVLOADEXEC}
3953	*/
3954	static DECLCALLBACK(int) vmmdevLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
3955	{
3956	/** @todo The code load code is assuming we're always loaded into a freshly
3957	* constructed VM. */
3958	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, PVMMDEV);
3959	int rc;
3960
3961	if ( uVersion > VMMDEV_SAVED_STATE_VERSION
3962	\|\| uVersion < 6)
3963	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
3964
3965	/* config */
3966	if (uVersion > VMMDEV_SAVED_STATE_VERSION_VBOX_30)
3967	{
3968	bool f;
3969	rc = SSMR3GetBool(pSSM, &f); AssertRCReturn(rc, rc);
3970	if (pThis->fGetHostTimeDisabled != f)
3971	LogRel(("VMMDev: Config mismatch - fGetHostTimeDisabled: config=%RTbool saved=%RTbool\n", pThis->fGetHostTimeDisabled, f));
3972
3973	rc = SSMR3GetBool(pSSM, &f); AssertRCReturn(rc, rc);
3974	if (pThis->fBackdoorLogDisabled != f)
3975	LogRel(("VMMDev: Config mismatch - fBackdoorLogDisabled: config=%RTbool saved=%RTbool\n", pThis->fBackdoorLogDisabled, f));
3976
3977	rc = SSMR3GetBool(pSSM, &f); AssertRCReturn(rc, rc);
3978	if (pThis->fKeepCredentials != f)
3979	return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Config mismatch - fKeepCredentials: config=%RTbool saved=%RTbool"),
3980	pThis->fKeepCredentials, f);
3981	rc = SSMR3GetBool(pSSM, &f); AssertRCReturn(rc, rc);
3982	if (pThis->fHeapEnabled != f)
3983	return SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Config mismatch - fHeapEnabled: config=%RTbool saved=%RTbool"),
3984	pThis->fHeapEnabled, f);
3985	}
3986
3987	if (uPass != SSM_PASS_FINAL)
3988	return VINF_SUCCESS;
3989
3990	/* state */
3991	SSMR3GetU32(pSSM, &pThis->hypervisorSize);
3992	SSMR3GetU32(pSSM, &pThis->mouseCapabilities);
3993	SSMR3GetS32(pSSM, &pThis->mouseXAbs);
3994	SSMR3GetS32(pSSM, &pThis->mouseYAbs);
3995
3996	SSMR3GetBool(pSSM, &pThis->fNewGuestFilterMask);
3997	SSMR3GetU32(pSSM, &pThis->u32NewGuestFilterMask);
3998	SSMR3GetU32(pSSM, &pThis->u32GuestFilterMask);
3999	SSMR3GetU32(pSSM, &pThis->u32HostEventFlags);
4000
4001	//SSMR3GetBool(pSSM, &pThis->pVMMDevRAMR3->fHaveEvents);
4002	// here be dragons (probably)
4003	SSMR3GetMem(pSSM, &pThis->pVMMDevRAMR3->V, sizeof (pThis->pVMMDevRAMR3->V));
4004
4005	SSMR3GetMem(pSSM, &pThis->guestInfo, sizeof (pThis->guestInfo));
4006	SSMR3GetU32(pSSM, &pThis->fu32AdditionsOk);
4007	SSMR3GetU32(pSSM, &pThis->u32VideoAccelEnabled);
4008	if (uVersion > 10)
4009	SSMR3GetBool(pSSM, &pThis->displayChangeData.fGuestSentChangeEventAck);
4010
4011	rc = SSMR3GetU32(pSSM, &pThis->guestCaps);
4012
4013	/* Attributes which were temporarily introduced in r30072 */
4014	if (uVersion == 7)
4015	{
4016	uint32_t temp;
4017	SSMR3GetU32(pSSM, &temp);
4018	rc = SSMR3GetU32(pSSM, &temp);
4019	}
4020	AssertRCReturn(rc, rc);
4021
4022	#ifdef VBOX_WITH_HGCM
4023	rc = vmmdevHGCMLoadState(pThis, pSSM, uVersion);
4024	AssertRCReturn(rc, rc);
4025	#endif /* VBOX_WITH_HGCM */
4026
4027	if (uVersion >= 10)
4028	rc = SSMR3GetU32(pSSM, &pThis->fHostCursorRequested);
4029	AssertRCReturn(rc, rc);
4030
4031	if (uVersion > VMMDEV_SAVED_STATE_VERSION_MISSING_GUEST_INFO_2)
4032	{
4033	SSMR3GetU32(pSSM, &pThis->guestInfo2.uFullVersion);
4034	SSMR3GetU32(pSSM, &pThis->guestInfo2.uRevision);
4035	SSMR3GetU32(pSSM, &pThis->guestInfo2.fFeatures);
4036	rc = SSMR3GetStrZ(pSSM, &pThis->guestInfo2.szName[0], sizeof(pThis->guestInfo2.szName));
4037	AssertRCReturn(rc, rc);
4038	}
4039
4040	if (uVersion > VMMDEV_SAVED_STATE_VERSION_MISSING_FACILITY_STATUSES)
4041	{
4042	uint32_t cFacilityStatuses;
4043	rc = SSMR3GetU32(pSSM, &cFacilityStatuses);
4044	AssertRCReturn(rc, rc);
4045
4046	for (uint32_t i = 0; i < cFacilityStatuses; i++)
4047	{
4048	uint32_t uFacility, fFlags;
4049	uint16_t uStatus;
4050	int64_t iTimeStampNano;
4051
4052	SSMR3GetU32(pSSM, &uFacility);
4053	SSMR3GetU32(pSSM, &fFlags);
4054	SSMR3GetU16(pSSM, &uStatus);
4055	rc = SSMR3GetS64(pSSM, &iTimeStampNano);
4056	AssertRCReturn(rc, rc);
4057
4058	PVMMDEVFACILITYSTATUSENTRY pEntry = vmmdevGetFacilityStatusEntry(pThis, (VBoxGuestFacilityType)uFacility);
4059	AssertLogRelMsgReturn(pEntry,
4060	("VMMDev: Ran out of entries restoring the guest facility statuses. Saved state has %u.\n", cFacilityStatuses),
4061	VERR_OUT_OF_RESOURCES);
4062	pEntry->enmStatus = (VBoxGuestFacilityStatus)uStatus;
4063	pEntry->fFlags = fFlags;
4064	RTTimeSpecSetNano(&pEntry->TimeSpecTS, iTimeStampNano);
4065	}
4066	}
4067
4068	/*
4069	* Heartbeat.
4070	*/
4071	if (uVersion >= VMMDEV_SAVED_STATE_VERSION_HEARTBEAT)
4072	{
4073	SSMR3GetBool(pSSM, (bool *)&pThis->fHeartbeatActive);
4074	SSMR3GetBool(pSSM, (bool *)&pThis->fFlatlined);
4075	SSMR3GetU64(pSSM, (uint64_t *)&pThis->nsLastHeartbeatTS);
4076	rc = TMR3TimerLoad(pThis->pFlatlinedTimer, pSSM);
4077	AssertRCReturn(rc, rc);
4078	if (pThis->fFlatlined)
4079	LogRel(("vmmdevLoadState: Guest has flatlined. Last heartbeat %'RU64 ns before state was saved.\n",
4080	TMTimerGetNano(pThis->pFlatlinedTimer) - pThis->nsLastHeartbeatTS));
4081	}
4082
4083	/*
4084	* On a resume, we send the capabilities changed message so
4085	* that listeners can sync their state again
4086	*/
4087	Log(("vmmdevLoadState: capabilities changed (%x), informing connector\n", pThis->mouseCapabilities));
4088	if (pThis->pDrv)
4089	{
4090	pThis->pDrv->pfnUpdateMouseCapabilities(pThis->pDrv, pThis->mouseCapabilities);
4091	if (uVersion >= 10)
4092	pThis->pDrv->pfnUpdatePointerShape(pThis->pDrv,
4093	/fVisible=/!!pThis->fHostCursorRequested,
4094	/fAlpha=/false,
4095	/xHot=/0, /yHot=/0,
4096	/cx=/0, /cy=/0,
4097	/pvShape=/NULL);
4098	}
4099
4100	if (pThis->fu32AdditionsOk)
4101	{
4102	vmmdevLogGuestOsInfo(&pThis->guestInfo);
4103	if (pThis->pDrv)
4104	{
4105	if (pThis->guestInfo2.uFullVersion && pThis->pDrv->pfnUpdateGuestInfo2)
4106	pThis->pDrv->pfnUpdateGuestInfo2(pThis->pDrv, pThis->guestInfo2.uFullVersion, pThis->guestInfo2.szName,
4107	pThis->guestInfo2.uRevision, pThis->guestInfo2.fFeatures);
4108	if (pThis->pDrv->pfnUpdateGuestInfo)
4109	pThis->pDrv->pfnUpdateGuestInfo(pThis->pDrv, &pThis->guestInfo);
4110
4111	if (pThis->pDrv->pfnUpdateGuestStatus)
4112	{
4113	for (uint32_t i = 0; i < pThis->cFacilityStatuses; i++) /* ascending order! */
4114	if ( pThis->aFacilityStatuses[i].enmStatus != VBoxGuestFacilityStatus_Inactive
4115	\|\| !pThis->aFacilityStatuses[i].fFixed)
4116	pThis->pDrv->pfnUpdateGuestStatus(pThis->pDrv,
4117	pThis->aFacilityStatuses[i].enmFacility,
4118	(uint16_t)pThis->aFacilityStatuses[i].enmStatus,
4119	pThis->aFacilityStatuses[i].fFlags,
4120	&pThis->aFacilityStatuses[i].TimeSpecTS);
4121	}
4122	}
4123	}
4124	if (pThis->pDrv && pThis->pDrv->pfnUpdateGuestCapabilities)
4125	pThis->pDrv->pfnUpdateGuestCapabilities(pThis->pDrv, pThis->guestCaps);
4126
4127	return VINF_SUCCESS;
4128	}
4129
4130	/**
4131	* Load state done callback. Notify guest of restore event.
4132	*
4133	* @returns VBox status code.
4134	* @param pDevIns The device instance.
4135	* @param pSSM The handle to the saved state.
4136	*/
4137	static DECLCALLBACK(int) vmmdevLoadStateDone(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
4138	{
4139	RT_NOREF1(pSSM);
4140	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, PVMMDEV);
4141
4142	#ifdef VBOX_WITH_HGCM
4143	int rc = vmmdevHGCMLoadStateDone(pThis);
4144	AssertLogRelRCReturn(rc, rc);
4145	#endif /* VBOX_WITH_HGCM */
4146
4147	/* Reestablish the acceleration status. */
4148	if ( pThis->u32VideoAccelEnabled
4149	&& pThis->pDrv)
4150	{
4151	pThis->pDrv->pfnVideoAccelEnable(pThis->pDrv, !!pThis->u32VideoAccelEnabled, &pThis->pVMMDevRAMR3->vbvaMemory);
4152	}
4153
4154	VMMDevNotifyGuest(pThis, VMMDEV_EVENT_RESTORED);
4155
4156	return VINF_SUCCESS;
4157	}
4158
4159
4160	/* -=-=-=-=- PDMDEVREG -=-=-=-=- */
4161
4162	/**
4163	* (Re-)initializes the MMIO2 data.
4164	*
4165	* @param pThis Pointer to the VMMDev instance data.
4166	*/
4167	static void vmmdevInitRam(PVMMDEV pThis)
4168	{
4169	memset(pThis->pVMMDevRAMR3, 0, sizeof(VMMDevMemory));
4170	pThis->pVMMDevRAMR3->u32Size = sizeof(VMMDevMemory);
4171	pThis->pVMMDevRAMR3->u32Version = VMMDEV_MEMORY_VERSION;
4172	}
4173
4174
4175	/**
4176	* @interface_method_impl{PDMDEVREG,pfnReset}
4177	*/
4178	static DECLCALLBACK(void) vmmdevReset(PPDMDEVINS pDevIns)
4179	{
4180	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, PVMMDEV);
4181	PDMCritSectEnter(&pThis->CritSect, VERR_IGNORED);
4182
4183	/*
4184	* Reset the mouse integration feature bits
4185	*/
4186	if (pThis->mouseCapabilities & VMMDEV_MOUSE_GUEST_MASK)
4187	{
4188	pThis->mouseCapabilities &= ~VMMDEV_MOUSE_GUEST_MASK;
4189	/* notify the connector */
4190	Log(("vmmdevReset: capabilities changed (%x), informing connector\n", pThis->mouseCapabilities));
4191	pThis->pDrv->pfnUpdateMouseCapabilities(pThis->pDrv, pThis->mouseCapabilities);
4192	}
4193	pThis->fHostCursorRequested = false;
4194
4195	pThis->hypervisorSize = 0;
4196
4197	/* re-initialize the VMMDev memory */
4198	if (pThis->pVMMDevRAMR3)
4199	vmmdevInitRam(pThis);
4200
4201	/* credentials have to go away (by default) */
4202	if (!pThis->fKeepCredentials)
4203	{
4204	memset(pThis->pCredentials->Logon.szUserName, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
4205	memset(pThis->pCredentials->Logon.szPassword, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
4206	memset(pThis->pCredentials->Logon.szDomain, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
4207	}
4208	memset(pThis->pCredentials->Judge.szUserName, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
4209	memset(pThis->pCredentials->Judge.szPassword, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
4210	memset(pThis->pCredentials->Judge.szDomain, '\0', VMMDEV_CREDENTIALS_SZ_SIZE);
4211
4212	/* Reset means that additions will report again. */
4213	const bool fVersionChanged = pThis->fu32AdditionsOk
4214	\|\| pThis->guestInfo.interfaceVersion
4215	\|\| pThis->guestInfo.osType != VBOXOSTYPE_Unknown;
4216	if (fVersionChanged)
4217	Log(("vmmdevReset: fu32AdditionsOk=%d additionsVersion=%x osType=%#x\n",
4218	pThis->fu32AdditionsOk, pThis->guestInfo.interfaceVersion, pThis->guestInfo.osType));
4219	pThis->fu32AdditionsOk = false;
4220	memset (&pThis->guestInfo, 0, sizeof (pThis->guestInfo));
4221	RT_ZERO(pThis->guestInfo2);
4222	const bool fCapsChanged = pThis->guestCaps != 0; /* Report transition to 0. */
4223	pThis->guestCaps = 0;
4224
4225	/* Clear facilities. No need to tell Main as it will get a
4226	pfnUpdateGuestInfo callback. */
4227	RTTIMESPEC TimeStampNow;
4228	RTTimeNow(&TimeStampNow);
4229	uint32_t iFacility = pThis->cFacilityStatuses;
4230	while (iFacility-- > 0)
4231	{
4232	pThis->aFacilityStatuses[iFacility].enmStatus = VBoxGuestFacilityStatus_Inactive;
4233	pThis->aFacilityStatuses[iFacility].TimeSpecTS = TimeStampNow;
4234	}
4235
4236	/* clear pending display change request. */
4237	for (unsigned i = 0; i < RT_ELEMENTS(pThis->displayChangeData.aRequests); i++)
4238	{
4239	DISPLAYCHANGEREQUEST *pRequest = &pThis->displayChangeData.aRequests[i];
4240	memset (&pRequest->lastReadDisplayChangeRequest, 0, sizeof (pRequest->lastReadDisplayChangeRequest));
4241	}
4242	pThis->displayChangeData.iCurrentMonitor = 0;
4243	pThis->displayChangeData.fGuestSentChangeEventAck = false;
4244
4245	/* disable seamless mode */
4246	pThis->fLastSeamlessEnabled = false;
4247
4248	/* disabled memory ballooning */
4249	pThis->cMbMemoryBalloonLast = 0;
4250
4251	/* disabled statistics updating */
4252	pThis->u32LastStatIntervalSize = 0;
4253
4254	#ifdef VBOX_WITH_HGCM
4255	/* Clear the "HGCM event enabled" flag so the event can be automatically reenabled. */
4256	pThis->u32HGCMEnabled = 0;
4257	#endif
4258
4259	/*
4260	* Deactive heartbeat.
4261	*/
4262	if (pThis->fHeartbeatActive)
4263	{
4264	TMTimerStop(pThis->pFlatlinedTimer);
4265	pThis->fFlatlined = false;
4266	pThis->fHeartbeatActive = true;
4267	}
4268
4269	/*
4270	* Clear the event variables.
4271	*
4272	* XXX By design we should NOT clear pThis->u32HostEventFlags because it is designed
4273	* that way so host events do not depend on guest resets. However, the pending
4274	* event flags actually _were_ cleared since ages so we mask out events from
4275	* clearing which we really need to survive the reset. See xtracker 5767.
4276	*/
4277	pThis->u32HostEventFlags &= VMMDEV_EVENT_DISPLAY_CHANGE_REQUEST;
4278	pThis->u32GuestFilterMask = 0;
4279	pThis->u32NewGuestFilterMask = 0;
4280	pThis->fNewGuestFilterMask = 0;
4281
4282	/*
4283	* Call the update functions as required.
4284	*/
4285	if (fVersionChanged && pThis->pDrv && pThis->pDrv->pfnUpdateGuestInfo)
4286	pThis->pDrv->pfnUpdateGuestInfo(pThis->pDrv, &pThis->guestInfo);
4287	if (fCapsChanged && pThis->pDrv && pThis->pDrv->pfnUpdateGuestCapabilities)
4288	pThis->pDrv->pfnUpdateGuestCapabilities(pThis->pDrv, pThis->guestCaps);
4289
4290	/*
4291	* Generate a unique session id for this VM; it will be changed for each start, reset or restore.
4292	* This can be used for restore detection inside the guest.
4293	*/
4294	pThis->idSession = ASMReadTSC();
4295
4296	PDMCritSectLeave(&pThis->CritSect);
4297	}
4298
4299
4300	/**
4301	* @interface_method_impl{PDMDEVREG,pfnRelocate}
4302	*/
4303	static DECLCALLBACK(void) vmmdevRelocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
4304	{
4305	if (offDelta)
4306	{
4307	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, PVMMDEV);
4308	LogFlow(("vmmdevRelocate: offDelta=%RGv\n", offDelta));
4309
4310	if (pThis->pVMMDevRAMRC)
4311	pThis->pVMMDevRAMRC += offDelta;
4312	pThis->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
4313	}
4314	}
4315
4316
4317	/**
4318	* @interface_method_impl{PDMDEVREG,pfnDestruct}
4319	*/
4320	static DECLCALLBACK(int) vmmdevDestruct(PPDMDEVINS pDevIns)
4321	{
4322	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, PVMMDEV);
4323	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
4324
4325	/*
4326	* Wipe and free the credentials.
4327	*/
4328	if (pThis->pCredentials)
4329	{
4330	RTMemWipeThoroughly(pThis->pCredentials, sizeof(*pThis->pCredentials), 10);
4331	RTMemFree(pThis->pCredentials);
4332	pThis->pCredentials = NULL;
4333	}
4334
4335	#ifdef VBOX_WITH_HGCM
4336	/*
4337	* Everything HGCM.
4338	*/
4339	vmmdevHGCMDestroy(pThis);
4340	#endif
4341
4342	/*
4343	* Free the request buffers.
4344	*/
4345	for (uint32_t iCpu = 0; iCpu < RT_ELEMENTS(pThis->apReqBufs); iCpu++)
4346	{
4347	pThis->apReqBufs[iCpu] = NULL;
4348	RTMemPageFree(pThis->apReqBufs[iCpu], _4K);
4349	}
4350
4351	#ifndef VBOX_WITHOUT_TESTING_FEATURES
4352	/*
4353	* Clean up the testing device.
4354	*/
4355	vmmdevTestingTerminate(pDevIns);
4356	#endif
4357
4358	return VINF_SUCCESS;
4359	}
4360
4361
4362	/**
4363	* @interface_method_impl{PDMDEVREG,pfnConstruct}
4364	*/
4365	static DECLCALLBACK(int) vmmdevConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
4366	{
4367	PVMMDEV pThis = PDMINS_2_DATA(pDevIns, PVMMDEV);
4368	int rc;
4369
4370	Assert(iInstance == 0);
4371	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
4372
4373	/*
4374	* Initialize data (most of it anyway).
4375	*/
4376	/* Save PDM device instance data for future reference. */
4377	pThis->pDevInsR3 = pDevIns;
4378	pThis->pDevInsR0 = PDMDEVINS_2_R0PTR(pDevIns);
4379	pThis->pDevInsRC = PDMDEVINS_2_RCPTR(pDevIns);
4380
4381	/* PCI vendor, just a free bogus value */
4382	PCIDevSetVendorId(&pThis->PciDev, 0x80ee);
4383	/* device ID */
4384	PCIDevSetDeviceId(&pThis->PciDev, 0xcafe);
4385	/* class sub code (other type of system peripheral) */
4386	PCIDevSetClassSub(&pThis->PciDev, 0x80);
4387	/* class base code (base system peripheral) */
4388	PCIDevSetClassBase(&pThis->PciDev, 0x08);
4389	/* header type */
4390	PCIDevSetHeaderType(&pThis->PciDev, 0x00);
4391	/* interrupt on pin 0 */
4392	PCIDevSetInterruptPin(&pThis->PciDev, 0x01);
4393
4394	RTTIMESPEC TimeStampNow;
4395	RTTimeNow(&TimeStampNow);
4396	vmmdevAllocFacilityStatusEntry(pThis, VBoxGuestFacilityType_VBoxGuestDriver, true /fFixed/, &TimeStampNow);
4397	vmmdevAllocFacilityStatusEntry(pThis, VBoxGuestFacilityType_VBoxService, true /fFixed/, &TimeStampNow);
4398	vmmdevAllocFacilityStatusEntry(pThis, VBoxGuestFacilityType_VBoxTrayClient, true /fFixed/, &TimeStampNow);
4399	vmmdevAllocFacilityStatusEntry(pThis, VBoxGuestFacilityType_Seamless, true /fFixed/, &TimeStampNow);
4400	vmmdevAllocFacilityStatusEntry(pThis, VBoxGuestFacilityType_Graphics, true /fFixed/, &TimeStampNow);
4401	Assert(pThis->cFacilityStatuses == 5);
4402
4403	/*
4404	* Interfaces
4405	*/
4406	/* IBase */
4407	pThis->IBase.pfnQueryInterface = vmmdevPortQueryInterface;
4408
4409	/* VMMDev port */
4410	pThis->IPort.pfnQueryAbsoluteMouse = vmmdevIPort_QueryAbsoluteMouse;
4411	pThis->IPort.pfnSetAbsoluteMouse = vmmdevIPort_SetAbsoluteMouse ;
4412	pThis->IPort.pfnQueryMouseCapabilities = vmmdevIPort_QueryMouseCapabilities;
4413	pThis->IPort.pfnUpdateMouseCapabilities = vmmdevIPort_UpdateMouseCapabilities;
4414	pThis->IPort.pfnRequestDisplayChange = vmmdevIPort_RequestDisplayChange;
4415	pThis->IPort.pfnSetCredentials = vmmdevIPort_SetCredentials;
4416	pThis->IPort.pfnVBVAChange = vmmdevIPort_VBVAChange;
4417	pThis->IPort.pfnRequestSeamlessChange = vmmdevIPort_RequestSeamlessChange;
4418	pThis->IPort.pfnSetMemoryBalloon = vmmdevIPort_SetMemoryBalloon;
4419	pThis->IPort.pfnSetStatisticsInterval = vmmdevIPort_SetStatisticsInterval;
4420	pThis->IPort.pfnVRDPChange = vmmdevIPort_VRDPChange;
4421	pThis->IPort.pfnCpuHotUnplug = vmmdevIPort_CpuHotUnplug;
4422	pThis->IPort.pfnCpuHotPlug = vmmdevIPort_CpuHotPlug;
4423
4424	/* Shared folder LED */
4425	pThis->SharedFolders.Led.u32Magic = PDMLED_MAGIC;
4426	pThis->SharedFolders.ILeds.pfnQueryStatusLed = vmmdevQueryStatusLed;
4427
4428	#ifdef VBOX_WITH_HGCM
4429	/* HGCM port */
4430	pThis->IHGCMPort.pfnCompleted = hgcmCompleted;
4431	pThis->IHGCMPort.pfnIsCmdRestored = hgcmIsCmdRestored;
4432	pThis->IHGCMPort.pfnIsCmdCancelled = hgcmIsCmdCancelled;
4433	pThis->IHGCMPort.pfnGetRequestor = hgcmGetRequestor;
4434	pThis->IHGCMPort.pfnGetVMMDevSessionId = hgcmGetVMMDevSessionId;
4435	#endif
4436
4437	pThis->pCredentials = (VMMDEVCREDS )RTMemAllocZ(sizeof(pThis->pCredentials));
4438	if (!pThis->pCredentials)
4439	return VERR_NO_MEMORY;
4440
4441
4442	/*
4443	* Validate and read the configuration.
4444	*/
4445	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns,
4446	"GetHostTimeDisabled\|"
4447	"BackdoorLogDisabled\|"
4448	"KeepCredentials\|"
4449	"HeapEnabled\|"
4450	"RZEnabled\|"
4451	"GuestCoreDumpEnabled\|"
4452	"GuestCoreDumpDir\|"
4453	"GuestCoreDumpCount\|"
4454	"HeartbeatInterval\|"
4455	"HeartbeatTimeout\|"
4456	"TestingEnabled\|"
4457	"TestingMMIO\|"
4458	"TestintXmlOutputFile"
4459	,
4460	"");
4461
4462	rc = CFGMR3QueryBoolDef(pCfg, "GetHostTimeDisabled", &pThis->fGetHostTimeDisabled, false);
4463	if (RT_FAILURE(rc))
4464	return PDMDEV_SET_ERROR(pDevIns, rc,
4465	N_("Configuration error: Failed querying \"GetHostTimeDisabled\" as a boolean"));
4466
4467	rc = CFGMR3QueryBoolDef(pCfg, "BackdoorLogDisabled", &pThis->fBackdoorLogDisabled, false);
4468	if (RT_FAILURE(rc))
4469	return PDMDEV_SET_ERROR(pDevIns, rc,
4470	N_("Configuration error: Failed querying \"BackdoorLogDisabled\" as a boolean"));
4471
4472	rc = CFGMR3QueryBoolDef(pCfg, "KeepCredentials", &pThis->fKeepCredentials, false);
4473	if (RT_FAILURE(rc))
4474	return PDMDEV_SET_ERROR(pDevIns, rc,
4475	N_("Configuration error: Failed querying \"KeepCredentials\" as a boolean"));
4476
4477	rc = CFGMR3QueryBoolDef(pCfg, "HeapEnabled", &pThis->fHeapEnabled, true);
4478	if (RT_FAILURE(rc))
4479	return PDMDEV_SET_ERROR(pDevIns, rc,
4480	N_("Configuration error: Failed querying \"HeapEnabled\" as a boolean"));
4481
4482	rc = CFGMR3QueryBoolDef(pCfg, "RZEnabled", &pThis->fRZEnabled, true);
4483	if (RT_FAILURE(rc))
4484	return PDMDEV_SET_ERROR(pDevIns, rc,
4485	N_("Configuration error: Failed querying \"RZEnabled\" as a boolean"));
4486
4487	rc = CFGMR3QueryBoolDef(pCfg, "GuestCoreDumpEnabled", &pThis->fGuestCoreDumpEnabled, false);
4488	if (RT_FAILURE(rc))
4489	return PDMDEV_SET_ERROR(pDevIns, rc,
4490	N_("Configuration error: Failed querying \"GuestCoreDumpEnabled\" as a boolean"));
4491
4492	char *pszGuestCoreDumpDir = NULL;
4493	rc = CFGMR3QueryStringAllocDef(pCfg, "GuestCoreDumpDir", &pszGuestCoreDumpDir, "");
4494	if (RT_FAILURE(rc))
4495	return PDMDEV_SET_ERROR(pDevIns, rc,
4496	N_("Configuration error: Failed querying \"GuestCoreDumpDir\" as a string"));
4497
4498	RTStrCopy(pThis->szGuestCoreDumpDir, sizeof(pThis->szGuestCoreDumpDir), pszGuestCoreDumpDir);
4499	MMR3HeapFree(pszGuestCoreDumpDir);
4500
4501	rc = CFGMR3QueryU32Def(pCfg, "GuestCoreDumpCount", &pThis->cGuestCoreDumps, 3);
4502	if (RT_FAILURE(rc))
4503	return PDMDEV_SET_ERROR(pDevIns, rc,
4504	N_("Configuration error: Failed querying \"GuestCoreDumpCount\" as a 32-bit unsigned integer"));
4505
4506	rc = CFGMR3QueryU64Def(pCfg, "HeartbeatInterval", &pThis->cNsHeartbeatInterval, VMMDEV_HEARTBEAT_DEFAULT_INTERVAL);
4507	if (RT_FAILURE(rc))
4508	return PDMDEV_SET_ERROR(pDevIns, rc,
4509	N_("Configuration error: Failed querying \"HeartbeatInterval\" as a 64-bit unsigned integer"));
4510	if (pThis->cNsHeartbeatInterval < RT_NS_100MS / 2)
4511	return PDMDEV_SET_ERROR(pDevIns, rc,
4512	N_("Configuration error: Heartbeat interval \"HeartbeatInterval\" too small"));
4513
4514	rc = CFGMR3QueryU64Def(pCfg, "HeartbeatTimeout", &pThis->cNsHeartbeatTimeout, pThis->cNsHeartbeatInterval * 2);
4515	if (RT_FAILURE(rc))
4516	return PDMDEV_SET_ERROR(pDevIns, rc,
4517	N_("Configuration error: Failed querying \"HeartbeatTimeout\" as a 64-bit unsigned integer"));
4518	if (pThis->cNsHeartbeatTimeout < RT_NS_100MS)
4519	return PDMDEV_SET_ERROR(pDevIns, rc,
4520	N_("Configuration error: Heartbeat timeout \"HeartbeatTimeout\" too small"));
4521	if (pThis->cNsHeartbeatTimeout <= pThis->cNsHeartbeatInterval + RT_NS_10MS)
4522	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
4523	N_("Configuration error: Heartbeat timeout \"HeartbeatTimeout\" value (%'ull ns) is too close to the interval (%'ull ns)"),
4524	pThis->cNsHeartbeatTimeout, pThis->cNsHeartbeatInterval);
4525
4526	#ifndef VBOX_WITHOUT_TESTING_FEATURES
4527	rc = CFGMR3QueryBoolDef(pCfg, "TestingEnabled", &pThis->fTestingEnabled, false);
4528	if (RT_FAILURE(rc))
4529	return PDMDEV_SET_ERROR(pDevIns, rc,
4530	N_("Configuration error: Failed querying \"TestingEnabled\" as a boolean"));
4531	rc = CFGMR3QueryBoolDef(pCfg, "TestingMMIO", &pThis->fTestingMMIO, false);
4532	if (RT_FAILURE(rc))
4533	return PDMDEV_SET_ERROR(pDevIns, rc,
4534	N_("Configuration error: Failed querying \"TestingMMIO\" as a boolean"));
4535	rc = CFGMR3QueryStringAllocDef(pCfg, "TestintXmlOutputFile", &pThis->pszTestingXmlOutput, NULL);
4536	if (RT_FAILURE(rc))
4537	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed querying \"TestintXmlOutputFile\" as a string"));
4538
4539	/** @todo image-to-load-filename? */
4540	#endif
4541
4542	pThis->cbGuestRAM = MMR3PhysGetRamSize(PDMDevHlpGetVM(pDevIns));
4543
4544	/*
4545	* We do our own locking entirely. So, install NOP critsect for the device
4546	* and create our own critsect for use where it really matters (++).
4547	*/
4548	rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
4549	AssertRCReturn(rc, rc);
4550	rc = PDMDevHlpCritSectInit(pDevIns, &pThis->CritSect, RT_SRC_POS, "VMMDev#%u", iInstance);
4551	AssertRCReturn(rc, rc);
4552
4553	/*
4554	* Register the backdoor logging port
4555	*/
4556	rc = PDMDevHlpIOPortRegister(pDevIns, RTLOG_DEBUG_PORT, 1, NULL, vmmdevBackdoorLog,
4557	NULL, NULL, NULL, "VMMDev backdoor logging");
4558	AssertRCReturn(rc, rc);
4559
4560	#ifdef VMMDEV_WITH_ALT_TIMESYNC
4561	/*
4562	* Alternative timesync source.
4563	*
4564	* This was orignally added for creating a simple time sync service in an
4565	* OpenBSD guest without requiring VBoxGuest and VBoxService to be ported
4566	* first. We keep it in case it comes in handy.
4567	*/
4568	rc = PDMDevHlpIOPortRegister(pDevIns, 0x505, 1, NULL,
4569	vmmdevAltTimeSyncWrite, vmmdevAltTimeSyncRead,
4570	NULL, NULL, "VMMDev timesync backdoor");
4571	AssertRCReturn(rc, rc);
4572	#endif
4573
4574	/*
4575	* Register the PCI device.
4576	*/
4577	rc = PDMDevHlpPCIRegister(pDevIns, &pThis->PciDev);
4578	if (RT_FAILURE(rc))
4579	return rc;
4580	if (pThis->PciDev.uDevFn != 32 \|\| iInstance != 0)
4581	Log(("!!WARNING!!: pThis->PciDev.uDevFn=%d (ignore if testcase or no started by Main)\n", pThis->PciDev.uDevFn));
4582	rc = PDMDevHlpPCIIORegionRegister(pDevIns, 0, 0x20, PCI_ADDRESS_SPACE_IO, vmmdevIOPortRegionMap);
4583	if (RT_FAILURE(rc))
4584	return rc;
4585	rc = PDMDevHlpPCIIORegionRegister(pDevIns, 1, VMMDEV_RAM_SIZE, PCI_ADDRESS_SPACE_MEM, vmmdevIORAMRegionMap);
4586	if (RT_FAILURE(rc))
4587	return rc;
4588	if (pThis->fHeapEnabled)
4589	{
4590	rc = PDMDevHlpPCIIORegionRegister(pDevIns, 2, VMMDEV_HEAP_SIZE, PCI_ADDRESS_SPACE_MEM_PREFETCH, vmmdevIORAMRegionMap);
4591	if (RT_FAILURE(rc))
4592	return rc;
4593	}
4594
4595	/*
4596	* Allocate and initialize the MMIO2 memory.
4597	*
4598	* We map the first page into raw-mode and kernel contexts so we can handle
4599	* interrupt acknowledge requests more timely.
4600	*/
4601	rc = PDMDevHlpMMIO2Register(pDevIns, &pThis->PciDev, 1 /iRegion/, VMMDEV_RAM_SIZE, 0 /fFlags/,
4602	(void **)&pThis->pVMMDevRAMR3, "VMMDev");
4603	if (RT_FAILURE(rc))
4604	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
4605	N_("Failed to allocate %u bytes of memory for the VMM device"), VMMDEV_RAM_SIZE);
4606	vmmdevInitRam(pThis);
4607	if (pThis->fRZEnabled)
4608	{
4609	rc = PDMDevHlpMMIO2MapKernel(pDevIns, &pThis->PciDev, 1 /iRegion/, 0 /off/, PAGE_SIZE, "VMMDev", &pThis->pVMMDevRAMR0);
4610	if (RT_FAILURE(rc))
4611	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
4612	N_("Failed to map first page of the VMMDev ram into kernel space: %Rrc"), rc);
4613
4614	#ifdef VBOX_WITH_RAW_MODE
4615	rc = PDMDevHlpMMHyperMapMMIO2(pDevIns, &pThis->PciDev, 1 /iRegion/, 0 /off/, PAGE_SIZE, "VMMDev", &pThis->pVMMDevRAMRC);
4616	if (RT_FAILURE(rc))
4617	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
4618	N_("Failed to map first page of the VMMDev ram into raw-mode context: %Rrc"), rc);
4619	#endif
4620	}
4621
4622	/*
4623	* Allocate and initialize the MMIO2 heap.
4624	*/
4625	if (pThis->fHeapEnabled)
4626	{
4627	rc = PDMDevHlpMMIO2Register(pDevIns, &pThis->PciDev, 2 /iRegion/, VMMDEV_HEAP_SIZE, 0 /fFlags/,
4628	(void **)&pThis->pVMMDevHeapR3, "VMMDev Heap");
4629	if (RT_FAILURE(rc))
4630	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
4631	N_("Failed to allocate %u bytes of memory for the VMM device heap"), PAGE_SIZE);
4632
4633	/* Register the memory area with PDM so HM can access it before it's mapped. */
4634	rc = PDMDevHlpRegisterVMMDevHeap(pDevIns, NIL_RTGCPHYS, pThis->pVMMDevHeapR3, VMMDEV_HEAP_SIZE);
4635	AssertLogRelRCReturn(rc, rc);
4636	}
4637
4638	#ifndef VBOX_WITHOUT_TESTING_FEATURES
4639	/*
4640	* Initialize testing.
4641	*/
4642	rc = vmmdevTestingInitialize(pDevIns);
4643	if (RT_FAILURE(rc))
4644	return rc;
4645	#endif
4646
4647	/*
4648	* Get the corresponding connector interface
4649	*/
4650	rc = PDMDevHlpDriverAttach(pDevIns, 0, &pThis->IBase, &pThis->pDrvBase, "VMM Driver Port");
4651	if (RT_SUCCESS(rc))
4652	{
4653	pThis->pDrv = PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMIVMMDEVCONNECTOR);
4654	AssertMsgReturn(pThis->pDrv, ("LUN #0 doesn't have a VMMDev connector interface!\n"), VERR_PDM_MISSING_INTERFACE);
4655	#ifdef VBOX_WITH_HGCM
4656	pThis->pHGCMDrv = PDMIBASE_QUERY_INTERFACE(pThis->pDrvBase, PDMIHGCMCONNECTOR);
4657	if (!pThis->pHGCMDrv)
4658	{
4659	Log(("LUN #0 doesn't have a HGCM connector interface, HGCM is not supported. rc=%Rrc\n", rc));
4660	/* this is not actually an error, just means that there is no support for HGCM */
4661	}
4662	#endif
4663	/* Query the initial balloon size. */
4664	AssertPtr(pThis->pDrv->pfnQueryBalloonSize);
4665	rc = pThis->pDrv->pfnQueryBalloonSize(pThis->pDrv, &pThis->cMbMemoryBalloon);
4666	AssertRC(rc);
4667
4668	Log(("Initial balloon size %x\n", pThis->cMbMemoryBalloon));
4669	}
4670	else if (rc == VERR_PDM_NO_ATTACHED_DRIVER)
4671	{
4672	Log(("%s/%d: warning: no driver attached to LUN #0!\n", pDevIns->pReg->szName, pDevIns->iInstance));
4673	rc = VINF_SUCCESS;
4674	}
4675	else
4676	AssertMsgFailedReturn(("Failed to attach LUN #0! rc=%Rrc\n", rc), rc);
4677
4678	/*
4679	* Attach status driver for shared folders (optional).
4680	*/
4681	PPDMIBASE pBase;
4682	rc = PDMDevHlpDriverAttach(pDevIns, PDM_STATUS_LUN, &pThis->IBase, &pBase, "Status Port");
4683	if (RT_SUCCESS(rc))
4684	pThis->SharedFolders.pLedsConnector = PDMIBASE_QUERY_INTERFACE(pBase, PDMILEDCONNECTORS);
4685	else if (rc != VERR_PDM_NO_ATTACHED_DRIVER)
4686	{
4687	AssertMsgFailed(("Failed to attach to status driver. rc=%Rrc\n", rc));
4688	return rc;
4689	}
4690
4691	/*
4692	* Register saved state and init the HGCM CmdList critsect.
4693	*/
4694	rc = PDMDevHlpSSMRegisterEx(pDevIns, VMMDEV_SAVED_STATE_VERSION, sizeof(*pThis), NULL,
4695	NULL, vmmdevLiveExec, NULL,
4696	NULL, vmmdevSaveExec, NULL,
4697	NULL, vmmdevLoadExec, vmmdevLoadStateDone);
4698	AssertRCReturn(rc, rc);
4699
4700	/*
4701	* Create heartbeat checking timer.
4702	*/
4703	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL, vmmDevHeartbeatFlatlinedTimer, pThis,
4704	TMTIMER_FLAGS_NO_CRIT_SECT, "Heartbeat flatlined", &pThis->pFlatlinedTimer);
4705	AssertRCReturn(rc, rc);
4706
4707	#ifdef VBOX_WITH_HGCM
4708	rc = vmmdevHGCMInit(pThis);
4709	AssertRCReturn(rc, rc);
4710	#endif
4711
4712	/*
4713	* In this version of VirtualBox the GUI checks whether "needs host cursor"
4714	* changes.
4715	*/
4716	pThis->mouseCapabilities \|= VMMDEV_MOUSE_HOST_RECHECKS_NEEDS_HOST_CURSOR;
4717
4718	/*
4719	* Statistics.
4720	*/
4721	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatMemBalloonChunks, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT,
4722	"Memory balloon size", "/Devices/VMMDev/BalloonChunks");
4723	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatFastIrqAckR3, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT,
4724	"Fast IRQ acknowledgments handled in ring-3.", "/Devices/VMMDev/FastIrqAckR3");
4725	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatFastIrqAckRZ, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT,
4726	"Fast IRQ acknowledgments handled in ring-0 or raw-mode.", "/Devices/VMMDev/FastIrqAckRZ");
4727	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatSlowIrqAck, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT,
4728	"Slow IRQ acknowledgments (old style).", "/Devices/VMMDev/SlowIrqAck");
4729	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatReqBufAllocs, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT,
4730	"Times a larger request buffer was required.", "/Devices/VMMDev/LargeReqBufAllocs");
4731	#ifdef VBOX_WITH_HGCM
4732	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatHgcmCmdArrival, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL,
4733	"Profiling HGCM call arrival processing", "/HGCM/MsgArrival");
4734	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatHgcmCmdCompletion, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL,
4735	"Profiling HGCM call completion processing", "/HGCM/MsgCompletion");
4736	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatHgcmCmdTotal, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL,
4737	"Profiling whole HGCM call.", "/HGCM/MsgTotal");
4738	PDMDevHlpSTAMRegisterF(pDevIns, &pThis->StatHgcmLargeCmdAllocs,STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_COUNT,
4739	"Times the allocation cache could not be used.", "/HGCM/LargeCmdAllocs");
4740	#endif
4741
4742	/*
4743	* Generate a unique session id for this VM; it will be changed for each
4744	* start, reset or restore. This can be used for restore detection inside
4745	* the guest.
4746	*/
4747	pThis->idSession = ASMReadTSC();
4748	return rc;
4749	}
4750
4751	/**
4752	* The device registration structure.
4753	*/
4754	extern "C" const PDMDEVREG g_DeviceVMMDev =
4755	{
4756	/* u32Version */
4757	PDM_DEVREG_VERSION,
4758	/* szName */
4759	"VMMDev",
4760	/* szRCMod */
4761	"VBoxDDRC.rc",
4762	/* szR0Mod */
4763	"VBoxDDR0.r0",
4764	/* pszDescription */
4765	"VirtualBox VMM Device\n",
4766	/* fFlags */
4767	PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_GUEST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_RC \| PDM_DEVREG_FLAGS_R0,
4768	/* fClass */
4769	PDM_DEVREG_CLASS_VMM_DEV,
4770	/* cMaxInstances */
4771	1,
4772	/* cbInstance */
4773	sizeof(VMMDevState),
4774	/* pfnConstruct */
4775	vmmdevConstruct,
4776	/* pfnDestruct */
4777	vmmdevDestruct,
4778	/* pfnRelocate */
4779	vmmdevRelocate,
4780	/* pfnMemSetup */
4781	NULL,
4782	/* pfnPowerOn */
4783	NULL,
4784	/* pfnReset */
4785	vmmdevReset,
4786	/* pfnSuspend */
4787	NULL,
4788	/* pfnResume */
4789	NULL,
4790	/* pfnAttach */
4791	NULL,
4792	/* pfnDetach */
4793	NULL,
4794	/* pfnQueryInterface. */
4795	NULL,
4796	/* pfnInitComplete */
4797	NULL,
4798	/* pfnPowerOff */
4799	NULL,
4800	/* pfnSoftReset */
4801	NULL,
4802	/* u32VersionEnd */
4803	PDM_DEVREG_VERSION
4804	};
4805	#endif /* IN_RING3 */
4806	#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */

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source: vbox/trunk/src/VBox/Devices/VMMDev/VMMDev.cpp@ 76408

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