PlatformX86Impl.cpp@ 106297

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1	/* $Id: PlatformX86Impl.cpp 106061 2024-09-16 14:03:52Z vboxsync $ */
2	/** @file
3	* VirtualBox COM class implementation - x86 platform settings.
4	*/
5
6	/*
7	* Copyright (C) 2023-2024 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	#define LOG_GROUP LOG_GROUP_MAIN_PLATFORMX86
29	#include "MachineImpl.h"
30	#include "PlatformX86Impl.h"
31	#include "PlatformImpl.h"
32	#include "LoggingNew.h"
33
34	#include "AutoStateDep.h"
35
36	#include <iprt/cpp/utils.h>
37
38	#include <VBox/settings.h>
39
40
41	/**
42	* x86-specific platform data.
43	*
44	* This data is unique for a machine and for every machine snapshot.
45	* Stored using the util::Backupable template in the \|mPlatformX86Data\| variable.
46	*
47	* SessionMachine instances can alter this data and discard changes.
48	*/
49	struct Data
50	{
51	Data() { }
52
53	ComObjPtr<PlatformX86> pPeer;
54
55	// use the XML settings structure in the members for simplicity
56	Backupable<settings::PlatformX86> bd;
57	};
58
59
60	/*
61	* PlatformX86 implementation.
62	*/
63	PlatformX86::PlatformX86()
64	{
65	}
66
67	PlatformX86::~PlatformX86()
68	{
69	uninit();
70	}
71
72	HRESULT PlatformX86::FinalConstruct()
73	{
74	return BaseFinalConstruct();
75	}
76
77	void PlatformX86::FinalRelease()
78	{
79	uninit();
80
81	BaseFinalRelease();
82	}
83
84	HRESULT PlatformX86::init(Platform aParent, Machine aMachine)
85	{
86	/* Enclose the state transition NotReady->InInit->Ready */
87	AutoInitSpan autoInitSpan(this);
88	AssertReturn(autoInitSpan.isOk(), E_FAIL);
89
90	/* share the parent + machine weakly */
91	unconst(mParent) = aParent;
92	unconst(mMachine) = aMachine;
93
94	m = new Data;
95	m->bd.allocate();
96
97	/* Confirm a successful initialization */
98	autoInitSpan.setSucceeded();
99
100	return S_OK;
101	}
102
103	/**
104	* Initializes the platform object given another platform object
105	* (a kind of copy constructor). This object shares data with
106	* the object passed as an argument.
107	*
108	* @note This object must be destroyed before the original object
109	* it shares data with is destroyed.
110	*/
111	HRESULT PlatformX86::init(Platform aParent, Machine aMachine, PlatformX86 *aThat)
112	{
113	/* Enclose the state transition NotReady->InInit->Ready */
114	AutoInitSpan autoInitSpan(this);
115	AssertReturn(autoInitSpan.isOk(), E_FAIL);
116
117	ComAssertRet(aParent && aParent, E_INVALIDARG);
118
119	unconst(mParent) = aParent;
120	unconst(mMachine) = aMachine;
121
122	m = new Data();
123	m->pPeer = aThat;
124
125	AutoWriteLock thatlock(aThat COMMA_LOCKVAL_SRC_POS);
126	m->bd.share(aThat->m->bd);
127
128	autoInitSpan.setSucceeded();
129
130	return S_OK;
131	}
132
133	/**
134	* Initializes the guest object given another guest object
135	* (a kind of copy constructor). This object makes a private copy of data
136	* of the original object passed as an argument.
137	*/
138	HRESULT PlatformX86::initCopy(Platform aParent, Machine aMachine, PlatformX86 *aThat)
139	{
140	ComAssertRet(aParent && aParent, E_INVALIDARG);
141
142	/* Enclose the state transition NotReady->InInit->Ready */
143	AutoInitSpan autoInitSpan(this);
144	AssertReturn(autoInitSpan.isOk(), E_FAIL);
145
146	unconst(mParent) = aParent;
147	unconst(mMachine) = aMachine;
148
149	m = new Data();
150	// m->pPeer is left null
151
152	AutoWriteLock thatlock(aThat COMMA_LOCKVAL_SRC_POS); /** @todo r=andy Shouldn't a read lock be sufficient here? */
153	m->bd.attachCopy(aThat->m->bd);
154
155	autoInitSpan.setSucceeded();
156
157	return S_OK;
158	}
159
160	void PlatformX86::uninit()
161	{
162	/* Enclose the state transition Ready->InUninit->NotReady */
163	AutoUninitSpan autoUninitSpan(this);
164	if (autoUninitSpan.uninitDone())
165	return;
166
167	unconst(mMachine) = NULL;
168
169	if (m)
170	{
171	m->bd.free();
172	unconst(m->pPeer) = NULL;
173
174	delete m;
175	m = NULL;
176	}
177	}
178
179	void PlatformX86::i_rollback()
180	{
181	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
182	if (m)
183	m->bd.rollback();
184	}
185
186	void PlatformX86::i_commit()
187	{
188	/* sanity */
189	AutoCaller autoCaller(this);
190	AssertComRCReturnVoid(autoCaller.hrc());
191
192	/* sanity too */
193	AutoCaller peerCaller(m->pPeer);
194	AssertComRCReturnVoid(peerCaller.hrc());
195
196	/* lock both for writing since we modify both (mPeer is "master" so locked
197	* first) */
198	AutoMultiWriteLock2 alock(m->pPeer, this COMMA_LOCKVAL_SRC_POS);
199
200	if (m->bd.isBackedUp())
201	{
202	m->bd.commit();
203	if (m->pPeer)
204	{
205	/* attach new data to the peer and reshare it */
206	AutoWriteLock peerlock(m->pPeer COMMA_LOCKVAL_SRC_POS);
207	m->pPeer->m->bd.attach(m->bd);
208	}
209	}
210	}
211
212	void PlatformX86::i_copyFrom(PlatformX86 *aThat)
213	{
214	AssertReturnVoid(aThat != NULL);
215
216	/* sanity */
217	AutoCaller autoCaller(this);
218	AssertComRCReturnVoid(autoCaller.hrc());
219
220	/* sanity too */
221	AutoCaller thatCaller(aThat);
222	AssertComRCReturnVoid(thatCaller.hrc());
223
224	/* peer is not modified, lock it for reading (aThat is "master" so locked
225	* first) */
226	AutoReadLock rl(aThat COMMA_LOCKVAL_SRC_POS);
227	AutoWriteLock wl(this COMMA_LOCKVAL_SRC_POS);
228
229	/* this will back up current data */
230	m->bd.assignCopy(aThat->m->bd);
231	}
232
233	HRESULT PlatformX86::getHPETEnabled(BOOL *aHPETEnabled)
234	{
235	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
236
237	*aHPETEnabled = m->bd->fHPETEnabled;
238
239	return S_OK;
240	}
241
242	HRESULT PlatformX86::setHPETEnabled(BOOL aHPETEnabled)
243	{
244	/* the machine needs to be mutable */
245	AutoMutableStateDependency adep(mMachine);
246	if (FAILED(adep.hrc())) return adep.hrc();
247
248	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
249
250	m->bd.backup();
251	m->bd->fHPETEnabled = aHPETEnabled;
252
253	alock.release();
254
255	AutoWriteLock mlock(mMachine COMMA_LOCKVAL_SRC_POS);
256	mMachine->i_setModified(Machine::IsModified_Platform);
257
258	return S_OK;
259	}
260
261	HRESULT PlatformX86::getCPUProperty(CPUPropertyTypeX86_T aProperty, BOOL *aValue)
262	{
263	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
264
265	switch (aProperty)
266	{
267	case CPUPropertyTypeX86_PAE:
268	*aValue = m->bd->fPAE;
269	break;
270
271	case CPUPropertyTypeX86_LongMode:
272	if (m->bd->enmLongMode == settings::PlatformX86::LongMode_Enabled)
273	*aValue = TRUE;
274	else if (m->bd->enmLongMode == settings::PlatformX86::LongMode_Disabled)
275	*aValue = FALSE;
276	#if HC_ARCH_BITS == 64
277	else
278	*aValue = TRUE;
279	#else
280	else
281	{
282	*aValue = FALSE;
283
284	ComObjPtr<GuestOSType> pGuestOSType;
285	HRESULT hrc2 = mParent->i_findGuestOSType(mUserData->s.strOsType,
286	pGuestOSType);
287	if (SUCCEEDED(hrc2) && !pGuestOSType.isNull())
288	{
289	if (pGuestOSType->i_is64Bit())
290	{
291	ComObjPtr<Host> pHost = mParent->i_host();
292	alock.release();
293
294	hrc2 = pHost->GetProcessorFeature(ProcessorFeature_LongMode, aValue); AssertComRC(hrc2);
295	if (FAILED(hrc2))
296	*aValue = FALSE;
297	}
298	}
299	}
300	#endif
301	break;
302
303	case CPUPropertyTypeX86_TripleFaultReset:
304	*aValue = m->bd->fTripleFaultReset;
305	break;
306
307	case CPUPropertyTypeX86_APIC:
308	*aValue = m->bd->fAPIC;
309	break;
310
311	case CPUPropertyTypeX86_X2APIC:
312	*aValue = m->bd->fX2APIC;
313	break;
314
315	case CPUPropertyTypeX86_IBPBOnVMExit:
316	*aValue = m->bd->fIBPBOnVMExit;
317	break;
318
319	case CPUPropertyTypeX86_IBPBOnVMEntry:
320	*aValue = m->bd->fIBPBOnVMEntry;
321	break;
322
323	case CPUPropertyTypeX86_SpecCtrl:
324	*aValue = m->bd->fSpecCtrl;
325	break;
326
327	case CPUPropertyTypeX86_SpecCtrlByHost:
328	*aValue = m->bd->fSpecCtrlByHost;
329	break;
330
331	case CPUPropertyTypeX86_HWVirt:
332	*aValue = m->bd->fNestedHWVirt;
333	break;
334
335	case CPUPropertyTypeX86_L1DFlushOnEMTScheduling:
336	*aValue = m->bd->fL1DFlushOnSched;
337	break;
338
339	case CPUPropertyTypeX86_L1DFlushOnVMEntry:
340	*aValue = m->bd->fL1DFlushOnVMEntry;
341	break;
342
343	case CPUPropertyTypeX86_MDSClearOnEMTScheduling:
344	*aValue = m->bd->fMDSClearOnSched;
345	break;
346
347	case CPUPropertyTypeX86_MDSClearOnVMEntry:
348	*aValue = m->bd->fMDSClearOnVMEntry;
349	break;
350
351	default:
352	return E_INVALIDARG;
353	}
354	return S_OK;
355	}
356
357	HRESULT PlatformX86::setCPUProperty(CPUPropertyTypeX86_T aProperty, BOOL aValue)
358	{
359	/* sanity */
360	AutoCaller autoCaller(this);
361	AssertComRCReturnRC(autoCaller.hrc());
362
363	/* the machine needs to be mutable */
364	AutoMutableStateDependency adep(mMachine);
365	if (FAILED(adep.hrc())) return adep.hrc();
366
367	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
368
369	switch (aProperty)
370	{
371	case CPUPropertyTypeX86_PAE:
372	{
373	m->bd.backup();
374	m->bd->fPAE = !!aValue;
375	break;
376	}
377
378	case CPUPropertyTypeX86_LongMode:
379	{
380	m->bd.backup();
381	m->bd->enmLongMode = !aValue ? settings::PlatformX86::LongMode_Disabled : settings::PlatformX86::LongMode_Enabled;
382	break;
383	}
384
385	case CPUPropertyTypeX86_TripleFaultReset:
386	{
387	m->bd.backup();
388	m->bd->fTripleFaultReset = !!aValue;
389	break;
390	}
391
392	case CPUPropertyTypeX86_APIC:
393	{
394	if (m->bd->fX2APIC)
395	aValue = TRUE;
396	m->bd.backup();
397	m->bd->fAPIC = !!aValue;
398	break;
399	}
400
401	case CPUPropertyTypeX86_X2APIC:
402	{
403	m->bd.backup();
404	m->bd->fX2APIC = !!aValue;
405	m->bd->fAPIC = !!aValue;
406	break;
407	}
408
409	case CPUPropertyTypeX86_IBPBOnVMExit:
410	{
411	m->bd.backup();
412	m->bd->fIBPBOnVMExit = !!aValue;
413	break;
414	}
415
416	case CPUPropertyTypeX86_IBPBOnVMEntry:
417	{
418	m->bd.backup();
419	m->bd->fIBPBOnVMEntry = !!aValue;
420	break;
421	}
422
423	case CPUPropertyTypeX86_SpecCtrl:
424	{
425	m->bd.backup();
426	m->bd->fSpecCtrl = !!aValue;
427	break;
428	}
429
430	case CPUPropertyTypeX86_SpecCtrlByHost:
431	{
432	m->bd.backup();
433	m->bd->fSpecCtrlByHost = !!aValue;
434	break;
435	}
436
437	case CPUPropertyTypeX86_HWVirt:
438	{
439	m->bd.backup();
440	m->bd->fNestedHWVirt = !!aValue;
441	break;
442	}
443
444	case CPUPropertyTypeX86_L1DFlushOnEMTScheduling:
445	{
446	m->bd.backup();
447	m->bd->fL1DFlushOnSched = !!aValue;
448	break;
449	}
450
451	case CPUPropertyTypeX86_L1DFlushOnVMEntry:
452	{
453	m->bd.backup();
454	m->bd->fL1DFlushOnVMEntry = !!aValue;
455	break;
456	}
457
458	case CPUPropertyTypeX86_MDSClearOnEMTScheduling:
459	{
460	m->bd.backup();
461	m->bd->fMDSClearOnSched = !!aValue;
462	break;
463	}
464
465	case CPUPropertyTypeX86_MDSClearOnVMEntry:
466	{
467	m->bd.backup();
468	m->bd->fMDSClearOnVMEntry = !!aValue;
469	break;
470	}
471
472	default:
473	return E_INVALIDARG;
474	}
475
476	alock.release();
477
478	AutoWriteLock mlock(mParent COMMA_LOCKVAL_SRC_POS);
479	mMachine->i_setModified(Machine::IsModified_Platform);
480
481	return S_OK;
482	}
483
484	HRESULT PlatformX86::getCPUIDLeafByOrdinal(ULONG aOrdinal, ULONG aIdx, ULONG aSubIdx, ULONG aValEax, ULONG aValEbx,
485	ULONG aValEcx, ULONG aValEdx)
486	{
487	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
488	if (aOrdinal < m->bd->llCpuIdLeafs.size())
489	{
490	for (settings::CpuIdLeafsX86List::const_iterator it = m->bd->llCpuIdLeafs.begin();
491	it != m->bd->llCpuIdLeafs.end();
492	++it)
493	{
494	if (aOrdinal == 0)
495	{
496	const settings::CpuIdLeafX86 &rLeaf= *it;
497	*aIdx = rLeaf.idx;
498	*aSubIdx = rLeaf.idxSub;
499	*aValEax = rLeaf.uEax;
500	*aValEbx = rLeaf.uEbx;
501	*aValEcx = rLeaf.uEcx;
502	*aValEdx = rLeaf.uEdx;
503	return S_OK;
504	}
505	aOrdinal--;
506	}
507	}
508	return E_INVALIDARG;
509	}
510
511	HRESULT PlatformX86::getCPUIDLeaf(ULONG aIdx, ULONG aSubIdx, ULONG aValEax, ULONG aValEbx, ULONG aValEcx, ULONG aValEdx)
512	{
513	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
514
515	/*
516	* Search the list.
517	*/
518	for (settings::CpuIdLeafsX86List::const_iterator it = m->bd->llCpuIdLeafs.begin();
519	it != m->bd->llCpuIdLeafs.end();
520	++it)
521	{
522	const settings::CpuIdLeafX86 &rLeaf= *it;
523	if ( rLeaf.idx == aIdx
524	&& ( aSubIdx == UINT32_MAX
525	\|\| rLeaf.idxSub == aSubIdx) )
526	{
527	*aValEax = rLeaf.uEax;
528	*aValEbx = rLeaf.uEbx;
529	*aValEcx = rLeaf.uEcx;
530	*aValEdx = rLeaf.uEdx;
531	return S_OK;
532	}
533	}
534
535	return E_INVALIDARG;
536	}
537
538	HRESULT PlatformX86::setCPUIDLeaf(ULONG aIdx, ULONG aSubIdx, ULONG aValEax, ULONG aValEbx, ULONG aValEcx, ULONG aValEdx)
539	{
540	/* sanity */
541	AutoCaller autoCaller(this);
542	AssertComRCReturnRC(autoCaller.hrc());
543
544	/*
545	* Validate input before taking locks and checking state.
546	*/
547	if (aSubIdx != 0 && aSubIdx != UINT32_MAX)
548	return setError(E_INVALIDARG, tr("Currently only aSubIdx values 0 and 0xffffffff are supported: %#x"), aSubIdx);
549	if ( aIdx >= UINT32_C(0x20)
550	&& aIdx - UINT32_C(0x80000000) >= UINT32_C(0x20)
551	&& aIdx - UINT32_C(0xc0000000) >= UINT32_C(0x10) )
552	return setError(E_INVALIDARG, tr("CpuId override leaf %#x is out of range"), aIdx);
553
554	/* the machine needs to be mutable */
555	AutoMutableStateDependency adep(mMachine);
556	if (FAILED(adep.hrc())) return adep.hrc();
557
558	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
559
560	/*
561	* Impose a maximum number of leaves.
562	*/
563	if (m->bd->llCpuIdLeafs.size() > 256)
564	return setError(E_FAIL, tr("Max of 256 CPUID override leaves reached"));
565
566	/*
567	* Updating the list is a bit more complicated. So, let's do a remove first followed by an insert.
568	*/
569	m->bd.backup();
570
571	for (settings::CpuIdLeafsX86List::iterator it = m->bd->llCpuIdLeafs.begin(); it != m->bd->llCpuIdLeafs.end(); )
572	{
573	settings::CpuIdLeafX86 &rLeaf= *it;
574	if ( rLeaf.idx == aIdx
575	&& ( aSubIdx == UINT32_MAX
576	\|\| rLeaf.idxSub == aSubIdx) )
577	it = m->bd->llCpuIdLeafs.erase(it);
578	else
579	++it;
580	}
581
582	settings::CpuIdLeafX86 NewLeaf;
583	NewLeaf.idx = aIdx;
584	NewLeaf.idxSub = aSubIdx == UINT32_MAX ? 0 : aSubIdx;
585	NewLeaf.uEax = aValEax;
586	NewLeaf.uEbx = aValEbx;
587	NewLeaf.uEcx = aValEcx;
588	NewLeaf.uEdx = aValEdx;
589	m->bd->llCpuIdLeafs.push_back(NewLeaf);
590
591	alock.release();
592
593	AutoWriteLock mlock(mMachine COMMA_LOCKVAL_SRC_POS);
594	mMachine->i_setModified(Machine::IsModified_Platform);
595
596	return S_OK;
597	}
598
599	HRESULT PlatformX86::removeCPUIDLeaf(ULONG aIdx, ULONG aSubIdx)
600	{
601	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
602
603	AutoWriteLock mlock(mMachine COMMA_LOCKVAL_SRC_POS);
604	HRESULT hrc = mMachine->i_checkStateDependency(Machine::MutableStateDep);
605	if (FAILED(hrc)) return hrc;
606
607	/*
608	* Do the removal.
609	*/
610	bool fModified = m->bd.isBackedUp();
611	for (settings::CpuIdLeafsX86List::iterator it = m->bd->llCpuIdLeafs.begin(); it != m->bd->llCpuIdLeafs.end(); )
612	{
613	settings::CpuIdLeafX86 &rLeaf= *it;
614	if ( rLeaf.idx == aIdx
615	&& ( aSubIdx == UINT32_MAX
616	\|\| rLeaf.idxSub == aSubIdx) )
617	{
618	if (!fModified)
619	{
620	fModified = true;
621	mMachine->i_setModified(Machine::IsModified_Platform);
622	m->bd.backup();
623	// Start from the beginning, since m->bd.backup() creates
624	// a new list, causing iterator mixup. This makes sure that
625	// the settings are not unnecessarily marked as modified,
626	// at the price of extra list walking.
627	it = m->bd->llCpuIdLeafs.begin();
628	}
629	else
630	it = m->bd->llCpuIdLeafs.erase(it);
631	}
632	else
633	++it;
634	}
635
636	return S_OK;
637	}
638
639	HRESULT PlatformX86::removeAllCPUIDLeaves()
640	{
641	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
642
643	AutoWriteLock mlock(mMachine COMMA_LOCKVAL_SRC_POS);
644	HRESULT hrc = mMachine->i_checkStateDependency(Machine::MutableStateDep);
645	if (FAILED(hrc)) return hrc;
646
647	if (m->bd->llCpuIdLeafs.size() > 0)
648	{
649	mMachine->i_setModified(Machine::IsModified_Platform);
650	m->bd.backup();
651
652	m->bd->llCpuIdLeafs.clear();
653	}
654
655	return S_OK;
656	}
657
658	HRESULT PlatformX86::getHWVirtExProperty(HWVirtExPropertyType_T aProperty, BOOL *aValue)
659	{
660	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
661
662	switch(aProperty)
663	{
664	case HWVirtExPropertyType_Enabled:
665	*aValue = m->bd->fHWVirtEx;
666	break;
667
668	case HWVirtExPropertyType_VPID:
669	*aValue = m->bd->fHWVirtExVPID;
670	break;
671
672	case HWVirtExPropertyType_NestedPaging:
673	*aValue = m->bd->fHWVirtExNestedPaging;
674	break;
675
676	case HWVirtExPropertyType_UnrestrictedExecution:
677	*aValue = m->bd->fHWVirtExUX;
678	break;
679
680	case HWVirtExPropertyType_LargePages:
681	*aValue = m->bd->fHWVirtExLargePages;
682	break;
683
684	case HWVirtExPropertyType_Force:
685	*aValue = m->bd->fHWVirtExForce;
686	break;
687
688	case HWVirtExPropertyType_UseNativeApi:
689	*aValue = m->bd->fHWVirtExUseNativeApi;
690	break;
691
692	case HWVirtExPropertyType_VirtVmsaveVmload:
693	*aValue = m->bd->fHWVirtExVirtVmsaveVmload;
694	break;
695
696	default:
697	return E_INVALIDARG;
698	}
699	return S_OK;
700	}
701
702	HRESULT PlatformX86::setHWVirtExProperty(HWVirtExPropertyType_T aProperty, BOOL aValue)
703	{
704	/* sanity */
705	AutoCaller autoCaller(this);
706	AssertComRCReturnRC(autoCaller.hrc());
707
708	/* the machine needs to be mutable */
709	AutoMutableStateDependency adep(mMachine);
710	if (FAILED(adep.hrc())) return adep.hrc();
711
712	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
713
714	switch (aProperty)
715	{
716	case HWVirtExPropertyType_Enabled:
717	{
718	m->bd.backup();
719	m->bd->fHWVirtEx = !!aValue;
720	break;
721	}
722
723	case HWVirtExPropertyType_VPID:
724	{
725	m->bd.backup();
726	m->bd->fHWVirtExVPID = !!aValue;
727	break;
728	}
729
730	case HWVirtExPropertyType_NestedPaging:
731	{
732	m->bd.backup();
733	m->bd->fHWVirtExNestedPaging = !!aValue;
734	break;
735	}
736
737	case HWVirtExPropertyType_UnrestrictedExecution:
738	{
739	m->bd.backup();
740	m->bd->fHWVirtExUX = !!aValue;
741	break;
742	}
743
744	case HWVirtExPropertyType_LargePages:
745	{
746	m->bd.backup();
747	m->bd->fHWVirtExLargePages = !!aValue;
748	break;
749	}
750
751	case HWVirtExPropertyType_Force:
752	{
753	m->bd.backup();
754	m->bd->fHWVirtExForce = !!aValue;
755	break;
756	}
757
758	case HWVirtExPropertyType_UseNativeApi:
759	{
760	m->bd.backup();
761	m->bd->fHWVirtExUseNativeApi = !!aValue;
762	break;
763	}
764
765	case HWVirtExPropertyType_VirtVmsaveVmload:
766	{
767	m->bd.backup();
768	m->bd->fHWVirtExVirtVmsaveVmload = !!aValue;
769	break;
770	}
771
772	default:
773	return E_INVALIDARG;
774	}
775
776	alock.release();
777
778	AutoWriteLock mlock(mParent COMMA_LOCKVAL_SRC_POS);
779	mMachine->i_setModified(Machine::IsModified_Platform);
780
781	return S_OK;
782	}
783
784	// public methods only for internal purposes
785	////////////////////////////////////////////////////////////////////////////////
786
787	#if 0
788	void PlatformX86::i_copyFrom(PlatformX86 *aThat)
789	{
790	AssertReturnVoid(aThat != NULL);
791
792	/* sanity */
793	AutoCaller autoCaller(this);
794	AssertComRCReturnVoid(autoCaller.hrc());
795
796	/* sanity too */
797	AutoCaller thatCaller(aThat);
798	AssertComRCReturnVoid(thatCaller.hrc());
799
800	/* peer is not modified, lock it for reading (aThat is "master" so locked
801	* first) */
802	AutoReadLock rl(aThat COMMA_LOCKVAL_SRC_POS);
803	AutoWriteLock wl(this COMMA_LOCKVAL_SRC_POS);
804
805	/* this will back up current data */
806	m->bd.assignCopy(aThat->m->bd);
807	}
808	#endif
809
810	/**
811	* Loads settings from the given platform x86 node.
812	* May be called once right after this object creation.
813	*
814	* @returns HRESULT
815	* @param data Configuration settings.
816	*
817	* @note Locks this object for writing.
818	*/
819	HRESULT PlatformX86::i_loadSettings(const settings::PlatformX86 &data)
820	{
821	AutoCaller autoCaller(this);
822	AssertComRCReturnRC(autoCaller.hrc());
823
824	AutoReadLock mlock(mMachine COMMA_LOCKVAL_SRC_POS);
825	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
826
827	// cpuid leafs
828	for (settings::CpuIdLeafsX86List::const_iterator
829	it = data.llCpuIdLeafs.begin();
830	it != data.llCpuIdLeafs.end();
831	++it)
832	{
833	const settings::CpuIdLeafX86 &rLeaf= *it;
834	if ( rLeaf.idx < UINT32_C(0x20)
835	\|\| rLeaf.idx - UINT32_C(0x80000000) < UINT32_C(0x20)
836	\|\| rLeaf.idx - UINT32_C(0xc0000000) < UINT32_C(0x10) )
837	m->bd->llCpuIdLeafs.push_back(rLeaf);
838	/* else: just ignore */
839	}
840
841	// simply copy
842	m->bd.assignCopy(&data);
843	return S_OK;
844	}
845
846	/**
847	* Saves settings to the given platform x86 node.
848	*
849	* @returns HRESULT
850	* @param data Configuration settings.
851	*
852	* @note Locks this object for reading.
853	*/
854	HRESULT PlatformX86::i_saveSettings(settings::PlatformX86 &data)
855	{
856	AutoCaller autoCaller(this);
857	AssertComRCReturnRC(autoCaller.hrc());
858
859	AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
860
861	/* Standard and Extended CPUID leafs. */
862	data.llCpuIdLeafs.clear();
863	data.llCpuIdLeafs = m->bd->llCpuIdLeafs;
864
865	data = *m->bd.data();
866
867	return S_OK;
868	}
869
870	#if 0
871	void PlatformX86::i_rollback()
872	{
873	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
874	m->bd.rollback();
875	}
876
877	void PlatformX86::i_commit()
878	{
879	/* sanity */
880	AutoCaller autoCaller(this);
881	AssertComRCReturnVoid(autoCaller.hrc());
882
883	/* sanity too */
884	AutoCaller peerCaller(m->pPeer);
885	AssertComRCReturnVoid(peerCaller.hrc());
886
887	/* lock both for writing since we modify both (mPeer is "master" so locked
888	* first) */
889	AutoMultiWriteLock2 alock(m->pPeer, this COMMA_LOCKVAL_SRC_POS);
890
891	if (m->bd.isBackedUp())
892	{
893	m->bd.commit();
894	if (m->pPeer)
895	{
896	/* attach new data to the peer and reshare it */
897	AutoWriteLock peerlock(m->pPeer COMMA_LOCKVAL_SRC_POS);
898	m->pPeer->m->bd.attach(m->bd);
899	}
900	}
901	}
902	#endif
903
904	HRESULT PlatformX86::i_applyDefaults(GuestOSType *aOsType)
905	{
906	/* sanity */
907	AutoCaller autoCaller(this);
908	AssertComRCReturn(autoCaller.hrc(), autoCaller.hrc());
909
910	HRESULT hrc = S_OK;
911
912	BOOL fPAE;
913	BOOL fAPIC = TRUE; /* Always was enabled. */
914	BOOL fX2APIC;
915	settings::PlatformX86::LongModeType enmLongMode;
916	BOOL fHPET;
917	BOOL fTripleFaultReset;
918
919	if (aOsType)
920	{
921	hrc = aOsType->COMGETTER(RecommendedPAE)(&fPAE);
922	AssertComRCReturn(hrc, hrc);
923
924	hrc = aOsType->COMGETTER(RecommendedX2APIC)(&fX2APIC);
925	AssertComRCReturn(hrc, hrc);
926
927	/* Let the OS type select 64-bit ness. */
928	enmLongMode = aOsType->i_is64Bit()
929	? settings::PlatformX86::LongMode_Enabled : settings::PlatformX86::LongMode_Disabled;
930
931	hrc = aOsType->COMGETTER(RecommendedHPET)(&fHPET);
932	AssertComRCReturn(hrc, hrc);
933
934	hrc = aOsType->COMGETTER(RecommendedTFReset)(&fTripleFaultReset);
935	AssertComRCReturn(hrc, hrc);
936	}
937	else
938	{
939	/* No guest OS type object. Pick some plausible defaults which the
940	* host can handle. There's no way to know or validate anything. */
941	fX2APIC = FALSE;
942	enmLongMode = HC_ARCH_BITS == 64
943	? settings::PlatformX86::LongMode_Enabled : settings::PlatformX86::LongMode_Disabled;
944
945	#if HC_ARCH_BITS == 64 \|\| defined(RT_OS_WINDOWS) \|\| defined(RT_OS_DARWIN)
946	fPAE = TRUE;
947	#else
948	fPAE = FALSE;
949	#endif
950	fHPET = FALSE;
951	fTripleFaultReset = FALSE;
952	}
953
954	AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
955
956	m->bd->fPAE = fPAE;
957	m->bd->fAPIC = fAPIC;
958	m->bd->fX2APIC = fX2APIC;
959	m->bd->enmLongMode = enmLongMode;
960	m->bd->fHPETEnabled = fHPET;
961
962	m->bd->fTripleFaultReset = RT_BOOL(fTripleFaultReset);
963	m->bd->fIBPBOnVMExit = false;
964	m->bd->fIBPBOnVMEntry = false;
965	m->bd->fSpecCtrl = false;
966	m->bd->fSpecCtrlByHost = false;
967	m->bd->fL1DFlushOnSched = true;
968	m->bd->fL1DFlushOnVMEntry = false;
969	m->bd->fMDSClearOnSched = true;
970	m->bd->fMDSClearOnVMEntry = false;
971
972	/* Hardware virtualization must be ON by default. */
973	m->bd->fHWVirtEx = true;
974
975	return hrc;
976	}

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source: vbox/trunk/src/VBox/Main/src-server/PlatformX86Impl.cpp@ 106297

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