BusAssignmentManager.cpp@ 100842

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1	/* $Id: BusAssignmentManager.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2	/** @file
3	* VirtualBox bus slots assignment manager
4	*/
5
6	/*
7	* Copyright (C) 2010-2023 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
29	/*********************************************************************************************************************************
30	* Header Files *
31	*********************************************************************************************************************************/
32	#define LOG_GROUP LOG_GROUP_MAIN
33	#include "LoggingNew.h"
34
35	#include "BusAssignmentManager.h"
36
37	#include <iprt/asm.h>
38	#include <iprt/string.h>
39
40	#include <VBox/vmm/cfgm.h>
41	#include <VBox/vmm/vmmr3vtable.h>
42	#include <VBox/com/array.h>
43
44	#include <map>
45	#include <vector>
46	#include <algorithm>
47
48
49	/*********************************************************************************************************************************
50	* Structures and Typedefs *
51	*********************************************************************************************************************************/
52	struct DeviceAssignmentRule
53	{
54	const char *pszName;
55	int iBus;
56	int iDevice;
57	int iFn;
58	int iPriority;
59	};
60
61	struct DeviceAliasRule
62	{
63	const char *pszDevName;
64	const char *pszDevAlias;
65	};
66
67
68	/*********************************************************************************************************************************
69	* Global Variables *
70	*********************************************************************************************************************************/
71	/* Those rules define PCI slots assignment */
72	/** @note
73	* The EFI takes assumptions about PCI slot assignments which are different
74	* from the following tables in certain cases, for example the IDE device
75	* is assumed to be 00:01.1! */
76
77	/* Device Bus Device Function Priority */
78
79	/* Generic rules */
80	static const DeviceAssignmentRule g_aGenericRules[] =
81	{
82	/* VGA controller */
83	{"vga", 0, 2, 0, 0},
84
85	/* VMM device */
86	{"VMMDev", 0, 4, 0, 0},
87
88	/* Audio controllers */
89	{"ichac97", 0, 5, 0, 0},
90	{"hda", 0, 5, 0, 0},
91
92	/* Storage controllers */
93	{"buslogic", 0, 21, 0, 1},
94	{"lsilogicsas", 0, 22, 0, 1},
95	{"nvme", 0, 14, 0, 1},
96	{"virtio-scsi", 0, 15, 0, 1},
97
98	/* USB controllers */
99	{"usb-ohci", 0, 6, 0, 0},
100	{"usb-ehci", 0, 11, 0, 0},
101	{"usb-xhci", 0, 12, 0, 0},
102
103	/* ACPI controller */
104	#if 0
105	// It really should be this for 440FX chipset (part of PIIX4 actually)
106	{"acpi", 0, 1, 3, 0},
107	#else
108	{"acpi", 0, 7, 0, 0},
109	#endif
110
111	/* Network controllers */
112	/* the first network card gets the PCI ID 3, the next 3 gets 8..10,
113	* next 4 get 16..19. In "VMWare compatibility" mode the IDs 3 and 17
114	* swap places, i.e. the first card goes to ID 17=0x11. */
115	{"nic", 0, 3, 0, 1},
116	{"nic", 0, 8, 0, 1},
117	{"nic", 0, 9, 0, 1},
118	{"nic", 0, 10, 0, 1},
119	{"nic", 0, 16, 0, 1},
120	{"nic", 0, 17, 0, 1},
121	{"nic", 0, 18, 0, 1},
122	{"nic", 0, 19, 0, 1},
123
124	/* ISA/LPC controller */
125	{"lpc", 0, 31, 0, 0},
126
127	{ NULL, -1, -1, -1, 0}
128	};
129
130	/* PIIX3 chipset rules */
131	static const DeviceAssignmentRule g_aPiix3Rules[] =
132	{
133	{"piix3ide", 0, 1, 1, 0},
134	{"ahci", 0, 13, 0, 1},
135	{"lsilogic", 0, 20, 0, 1},
136	{"pcibridge", 0, 24, 0, 0},
137	{"pcibridge", 0, 25, 0, 0},
138	{ NULL, -1, -1, -1, 0}
139	};
140
141
142	/* ICH9 chipset rules */
143	static const DeviceAssignmentRule g_aIch9Rules[] =
144	{
145	/* Host Controller */
146	{"i82801", 0, 30, 0, 0},
147
148	/* Those are functions of LPC at 00:1e:00 */
149	/**
150	* Please note, that for devices being functions, like we do here, device 0
151	* must be multifunction, i.e. have header type 0x80. Our LPC device is.
152	* Alternative approach is to assign separate slot to each device.
153	*/
154	{"piix3ide", 0, 31, 1, 2},
155	{"ahci", 0, 31, 2, 2},
156	{"smbus", 0, 31, 3, 2},
157	{"usb-ohci", 0, 31, 4, 2},
158	{"usb-ehci", 0, 31, 5, 2},
159	{"thermal", 0, 31, 6, 2},
160
161	/* to make sure rule never used before rules assigning devices on it */
162	{"ich9pcibridge", 0, 24, 0, 10},
163	{"ich9pcibridge", 0, 25, 0, 10},
164	{"ich9pcibridge", 2, 24, 0, 9}, /* Bridges must be instantiated depth */
165	{"ich9pcibridge", 2, 25, 0, 9}, /* first (assumption in PDM and other */
166	{"ich9pcibridge", 4, 24, 0, 8}, /* places), so make sure that nested */
167	{"ich9pcibridge", 4, 25, 0, 8}, /* bridges are added to the last bridge */
168	{"ich9pcibridge", 6, 24, 0, 7}, /* only, avoiding the need to re-sort */
169	{"ich9pcibridge", 6, 25, 0, 7}, /* everything before starting the VM. */
170	{"ich9pcibridge", 8, 24, 0, 6},
171	{"ich9pcibridge", 8, 25, 0, 6},
172	{"ich9pcibridge", 10, 24, 0, 5},
173	{"ich9pcibridge", 10, 25, 0, 5},
174
175	/* Storage controllers */
176	{"ahci", 1, 0, 0, 0},
177	{"ahci", 1, 1, 0, 0},
178	{"ahci", 1, 2, 0, 0},
179	{"ahci", 1, 3, 0, 0},
180	{"ahci", 1, 4, 0, 0},
181	{"ahci", 1, 5, 0, 0},
182	{"ahci", 1, 6, 0, 0},
183	{"lsilogic", 1, 7, 0, 0},
184	{"lsilogic", 1, 8, 0, 0},
185	{"lsilogic", 1, 9, 0, 0},
186	{"lsilogic", 1, 10, 0, 0},
187	{"lsilogic", 1, 11, 0, 0},
188	{"lsilogic", 1, 12, 0, 0},
189	{"lsilogic", 1, 13, 0, 0},
190	{"buslogic", 1, 14, 0, 0},
191	{"buslogic", 1, 15, 0, 0},
192	{"buslogic", 1, 16, 0, 0},
193	{"buslogic", 1, 17, 0, 0},
194	{"buslogic", 1, 18, 0, 0},
195	{"buslogic", 1, 19, 0, 0},
196	{"buslogic", 1, 20, 0, 0},
197	{"lsilogicsas", 1, 21, 0, 0},
198	{"lsilogicsas", 1, 26, 0, 0},
199	{"lsilogicsas", 1, 27, 0, 0},
200	{"lsilogicsas", 1, 28, 0, 0},
201	{"lsilogicsas", 1, 29, 0, 0},
202	{"lsilogicsas", 1, 30, 0, 0},
203	{"lsilogicsas", 1, 31, 0, 0},
204
205	/* NICs */
206	{"nic", 2, 0, 0, 0},
207	{"nic", 2, 1, 0, 0},
208	{"nic", 2, 2, 0, 0},
209	{"nic", 2, 3, 0, 0},
210	{"nic", 2, 4, 0, 0},
211	{"nic", 2, 5, 0, 0},
212	{"nic", 2, 6, 0, 0},
213	{"nic", 2, 7, 0, 0},
214	{"nic", 2, 8, 0, 0},
215	{"nic", 2, 9, 0, 0},
216	{"nic", 2, 10, 0, 0},
217	{"nic", 2, 11, 0, 0},
218	{"nic", 2, 12, 0, 0},
219	{"nic", 2, 13, 0, 0},
220	{"nic", 2, 14, 0, 0},
221	{"nic", 2, 15, 0, 0},
222	{"nic", 2, 16, 0, 0},
223	{"nic", 2, 17, 0, 0},
224	{"nic", 2, 18, 0, 0},
225	{"nic", 2, 19, 0, 0},
226	{"nic", 2, 20, 0, 0},
227	{"nic", 2, 21, 0, 0},
228	{"nic", 2, 26, 0, 0},
229	{"nic", 2, 27, 0, 0},
230	{"nic", 2, 28, 0, 0},
231	{"nic", 2, 29, 0, 0},
232	{"nic", 2, 30, 0, 0},
233	{"nic", 2, 31, 0, 0},
234
235	/* Storage controller #2 (NVMe, virtio-scsi) */
236	{"nvme", 3, 0, 0, 0},
237	{"nvme", 3, 1, 0, 0},
238	{"nvme", 3, 2, 0, 0},
239	{"nvme", 3, 3, 0, 0},
240	{"nvme", 3, 4, 0, 0},
241	{"nvme", 3, 5, 0, 0},
242	{"nvme", 3, 6, 0, 0},
243	{"virtio-scsi", 3, 7, 0, 0},
244	{"virtio-scsi", 3, 8, 0, 0},
245	{"virtio-scsi", 3, 9, 0, 0},
246	{"virtio-scsi", 3, 10, 0, 0},
247	{"virtio-scsi", 3, 11, 0, 0},
248	{"virtio-scsi", 3, 12, 0, 0},
249	{"virtio-scsi", 3, 13, 0, 0},
250
251	{ NULL, -1, -1, -1, 0}
252	};
253
254
255	#ifdef VBOX_WITH_IOMMU_AMD
256	/*
257	* AMD IOMMU and LSI Logic controller rules.
258	*
259	* Since the PCI slot (BDF=00:20.0) of the LSI Logic controller
260	* conflicts with the SB I/O APIC, we assign the LSI Logic controller
261	* to device number 23 when the VM is configured for an AMD IOMMU.
262	*/
263	static const DeviceAssignmentRule g_aIch9IommuAmdRules[] =
264	{
265	/* AMD IOMMU. */
266	{"iommu-amd", 0, 0, 0, 0},
267	/* AMD IOMMU: Reserved for southbridge I/O APIC. */
268	{"sb-ioapic", 0, 20, 0, 0},
269
270	/* Storage controller */
271	{"lsilogic", 0, 23, 0, 1},
272	{ NULL, -1, -1, -1, 0}
273	};
274	#endif
275
276	#ifdef VBOX_WITH_IOMMU_INTEL
277	/*
278	* Intel IOMMU.
279	* The VT-d misc, address remapping, system management device is
280	* located at BDF 0:5:0 on real hardware but we use 0:1:0 since that
281	* slot isn't used for anything else.
282	*
283	* While we could place the I/O APIC anywhere, we keep it consistent
284	* with the AMD IOMMU and we assign the LSI Logic controller to
285	* device number 23 (and I/O APIC at device 20).
286	*/
287	static const DeviceAssignmentRule g_aIch9IommuIntelRules[] =
288	{
289	/* Intel IOMMU. */
290	{"iommu-intel", 0, 1, 0, 0},
291	/* Intel IOMMU: Reserved for I/O APIC. */
292	{"sb-ioapic", 0, 20, 0, 0},
293
294	/* Storage controller */
295	{"lsilogic", 0, 23, 0, 1},
296	{ NULL, -1, -1, -1, 0}
297	};
298	#endif
299
300	/* LSI Logic Controller. */
301	static const DeviceAssignmentRule g_aIch9LsiRules[] =
302	{
303	/* Storage controller */
304	{"lsilogic", 0, 20, 0, 1},
305	{ NULL, -1, -1, -1, 0}
306	};
307
308	/* Aliasing rules */
309	static const DeviceAliasRule g_aDeviceAliases[] =
310	{
311	{"e1000", "nic"},
312	{"pcnet", "nic"},
313	{"virtio-net", "nic"},
314	{"ahci", "storage"},
315	{"lsilogic", "storage"},
316	{"buslogic", "storage"},
317	{"lsilogicsas", "storage"},
318	{"nvme", "storage"},
319	{"virtio-scsi", "storage"}
320	};
321
322
323
324	/**
325	* Bus assignment manage state data.
326	* @internal
327	*/
328	struct BusAssignmentManager::State
329	{
330	struct PCIDeviceRecord
331	{
332	char szDevName[32];
333	PCIBusAddress HostAddress;
334
335	PCIDeviceRecord(const char *pszName, PCIBusAddress aHostAddress)
336	{
337	RTStrCopy(this->szDevName, sizeof(szDevName), pszName);
338	this->HostAddress = aHostAddress;
339	}
340
341	PCIDeviceRecord(const char *pszName)
342	{
343	RTStrCopy(this->szDevName, sizeof(szDevName), pszName);
344	}
345
346	bool operator<(const PCIDeviceRecord &a) const
347	{
348	return RTStrNCmp(szDevName, a.szDevName, sizeof(szDevName)) < 0;
349	}
350
351	bool operator==(const PCIDeviceRecord &a) const
352	{
353	return RTStrNCmp(szDevName, a.szDevName, sizeof(szDevName)) == 0;
354	}
355	};
356
357	typedef std::map<PCIBusAddress,PCIDeviceRecord> PCIMap;
358	typedef std::vector<PCIBusAddress> PCIAddrList;
359	typedef std::vector<const DeviceAssignmentRule *> PCIRulesList;
360	typedef std::map<PCIDeviceRecord,PCIAddrList> ReversePCIMap;
361
362	volatile int32_t cRefCnt;
363	ChipsetType_T mChipsetType;
364	const char * mpszBridgeName;
365	IommuType_T mIommuType;
366	PCIMap mPCIMap;
367	ReversePCIMap mReversePCIMap;
368	PCVMMR3VTABLE mpVMM;
369
370	State()
371	: cRefCnt(1), mChipsetType(ChipsetType_Null), mpszBridgeName("unknownbridge"), mpVMM(NULL)
372	{}
373	~State()
374	{}
375
376	HRESULT init(PCVMMR3VTABLE pVMM, ChipsetType_T chipsetType, IommuType_T iommuType);
377
378	HRESULT record(const char *pszName, PCIBusAddress& GuestAddress, PCIBusAddress HostAddress);
379	HRESULT autoAssign(const char *pszName, PCIBusAddress& Address);
380	bool checkAvailable(PCIBusAddress& Address);
381	bool findPCIAddress(const char *pszDevName, int iInstance, PCIBusAddress& Address);
382
383	const char findAlias(const char pszName);
384	void addMatchingRules(const char *pszName, PCIRulesList& aList);
385	void listAttachedPCIDevices(std::vector<PCIDeviceInfo> &aAttached);
386	};
387
388
389	HRESULT BusAssignmentManager::State::init(PCVMMR3VTABLE pVMM, ChipsetType_T chipsetType, IommuType_T iommuType)
390	{
391	mpVMM = pVMM;
392
393	if (iommuType != IommuType_None)
394	{
395	#if defined(VBOX_WITH_IOMMU_AMD) && defined(VBOX_WITH_IOMMU_INTEL)
396	Assert(iommuType == IommuType_AMD \|\| iommuType == IommuType_Intel);
397	#elif defined(VBOX_WITH_IOMMU_AMD)
398	Assert(iommuType == IommuType_AMD);
399	#elif defined(VBOX_WITH_IOMMU_INTEL)
400	Assert(iommuType == IommuType_Intel);
401	#endif
402	}
403
404	mChipsetType = chipsetType;
405	mIommuType = iommuType;
406	switch (chipsetType)
407	{
408	case ChipsetType_PIIX3:
409	mpszBridgeName = "pcibridge";
410	break;
411	case ChipsetType_ICH9:
412	mpszBridgeName = "ich9pcibridge";
413	break;
414	default:
415	mpszBridgeName = "unknownbridge";
416	AssertFailed();
417	break;
418	}
419	return S_OK;
420	}
421
422	HRESULT BusAssignmentManager::State::record(const char *pszName, PCIBusAddress& Address, PCIBusAddress HostAddress)
423	{
424	PCIDeviceRecord devRec(pszName, HostAddress);
425
426	/* Remember address -> device mapping */
427	mPCIMap.insert(PCIMap::value_type(Address, devRec));
428
429	ReversePCIMap::iterator it = mReversePCIMap.find(devRec);
430	if (it == mReversePCIMap.end())
431	{
432	mReversePCIMap.insert(ReversePCIMap::value_type(devRec, PCIAddrList()));
433	it = mReversePCIMap.find(devRec);
434	}
435
436	/* Remember device name -> addresses mapping */
437	it->second.push_back(Address);
438
439	return S_OK;
440	}
441
442	bool BusAssignmentManager::State::findPCIAddress(const char *pszDevName, int iInstance, PCIBusAddress& Address)
443	{
444	PCIDeviceRecord devRec(pszDevName);
445
446	ReversePCIMap::iterator it = mReversePCIMap.find(devRec);
447	if (it == mReversePCIMap.end())
448	return false;
449
450	if (iInstance >= (int)it->second.size())
451	return false;
452
453	Address = it->second[iInstance];
454	return true;
455	}
456
457	void BusAssignmentManager::State::addMatchingRules(const char *pszName, PCIRulesList& aList)
458	{
459	size_t iRuleset, iRule;
460	const DeviceAssignmentRule *aArrays[3] = {g_aGenericRules, NULL, NULL};
461
462	switch (mChipsetType)
463	{
464	case ChipsetType_PIIX3:
465	aArrays[1] = g_aPiix3Rules;
466	break;
467	case ChipsetType_ICH9:
468	{
469	aArrays[1] = g_aIch9Rules;
470	#ifdef VBOX_WITH_IOMMU_AMD
471	if (mIommuType == IommuType_AMD)
472	aArrays[2] = g_aIch9IommuAmdRules;
473	else
474	#endif
475	#ifdef VBOX_WITH_IOMMU_INTEL
476	if (mIommuType == IommuType_Intel)
477	aArrays[2] = g_aIch9IommuIntelRules;
478	else
479	#endif
480	{
481	aArrays[2] = g_aIch9LsiRules;
482	}
483	break;
484	}
485	default:
486	AssertFailed();
487	break;
488	}
489
490	for (iRuleset = 0; iRuleset < RT_ELEMENTS(aArrays); iRuleset++)
491	{
492	if (aArrays[iRuleset] == NULL)
493	continue;
494
495	for (iRule = 0; aArrays[iRuleset][iRule].pszName != NULL; iRule++)
496	{
497	if (RTStrCmp(pszName, aArrays[iRuleset][iRule].pszName) == 0)
498	aList.push_back(&aArrays[iRuleset][iRule]);
499	}
500	}
501	}
502
503	const char BusAssignmentManager::State::findAlias(const char pszDev)
504	{
505	for (size_t iAlias = 0; iAlias < RT_ELEMENTS(g_aDeviceAliases); iAlias++)
506	{
507	if (strcmp(pszDev, g_aDeviceAliases[iAlias].pszDevName) == 0)
508	return g_aDeviceAliases[iAlias].pszDevAlias;
509	}
510	return NULL;
511	}
512
513	static bool RuleComparator(const DeviceAssignmentRule r1, const DeviceAssignmentRule r2)
514	{
515	return (r1->iPriority > r2->iPriority);
516	}
517
518	HRESULT BusAssignmentManager::State::autoAssign(const char *pszName, PCIBusAddress& Address)
519	{
520	PCIRulesList matchingRules;
521
522	addMatchingRules(pszName, matchingRules);
523	const char *pszAlias = findAlias(pszName);
524	if (pszAlias)
525	addMatchingRules(pszAlias, matchingRules);
526
527	AssertMsg(matchingRules.size() > 0, ("No rule for %s(%s)\n", pszName, pszAlias));
528
529	stable_sort(matchingRules.begin(), matchingRules.end(), RuleComparator);
530
531	for (size_t iRule = 0; iRule < matchingRules.size(); iRule++)
532	{
533	const DeviceAssignmentRule *rule = matchingRules[iRule];
534
535	Address.miBus = rule->iBus;
536	Address.miDevice = rule->iDevice;
537	Address.miFn = rule->iFn;
538
539	if (checkAvailable(Address))
540	return S_OK;
541	}
542	AssertLogRelMsgFailed(("BusAssignmentManager: All possible candidate positions for %s exhausted\n", pszName));
543
544	return E_INVALIDARG;
545	}
546
547	bool BusAssignmentManager::State::checkAvailable(PCIBusAddress& Address)
548	{
549	PCIMap::const_iterator it = mPCIMap.find(Address);
550
551	return (it == mPCIMap.end());
552	}
553
554	void BusAssignmentManager::State::listAttachedPCIDevices(std::vector<PCIDeviceInfo> &aAttached)
555	{
556	aAttached.resize(mPCIMap.size());
557
558	size_t i = 0;
559	PCIDeviceInfo dev;
560	for (PCIMap::const_iterator it = mPCIMap.begin(); it != mPCIMap.end(); ++it, ++i)
561	{
562	dev.strDeviceName = it->second.szDevName;
563	dev.guestAddress = it->first;
564	dev.hostAddress = it->second.HostAddress;
565	aAttached[i] = dev;
566	}
567	}
568
569	BusAssignmentManager::BusAssignmentManager()
570	: pState(NULL)
571	{
572	pState = new State();
573	Assert(pState);
574	}
575
576	BusAssignmentManager::~BusAssignmentManager()
577	{
578	if (pState)
579	{
580	delete pState;
581	pState = NULL;
582	}
583	}
584
585	BusAssignmentManager *BusAssignmentManager::createInstance(PCVMMR3VTABLE pVMM, ChipsetType_T chipsetType, IommuType_T iommuType)
586	{
587	BusAssignmentManager *pInstance = new BusAssignmentManager();
588	pInstance->pState->init(pVMM, chipsetType, iommuType);
589	Assert(pInstance);
590	return pInstance;
591	}
592
593	void BusAssignmentManager::AddRef()
594	{
595	ASMAtomicIncS32(&pState->cRefCnt);
596	}
597
598	void BusAssignmentManager::Release()
599	{
600	if (ASMAtomicDecS32(&pState->cRefCnt) == 0)
601	delete this;
602	}
603
604	DECLINLINE(HRESULT) InsertConfigInteger(PCVMMR3VTABLE pVMM, PCFGMNODE pCfg, const char *pszName, uint64_t u64)
605	{
606	int vrc = pVMM->pfnCFGMR3InsertInteger(pCfg, pszName, u64);
607	if (RT_FAILURE(vrc))
608	return E_INVALIDARG;
609
610	return S_OK;
611	}
612
613	DECLINLINE(HRESULT) InsertConfigNode(PCVMMR3VTABLE pVMM, PCFGMNODE pNode, const char pcszName, PCFGMNODE ppChild)
614	{
615	int vrc = pVMM->pfnCFGMR3InsertNode(pNode, pcszName, ppChild);
616	if (RT_FAILURE(vrc))
617	return E_INVALIDARG;
618
619	return S_OK;
620	}
621
622
623	HRESULT BusAssignmentManager::assignPCIDeviceImpl(const char *pszDevName,
624	PCFGMNODE pCfg,
625	PCIBusAddress& GuestAddress,
626	PCIBusAddress HostAddress,
627	bool fGuestAddressRequired)
628	{
629	HRESULT hrc = S_OK;
630
631	if (!GuestAddress.valid())
632	hrc = pState->autoAssign(pszDevName, GuestAddress);
633	else
634	{
635	bool fAvailable = pState->checkAvailable(GuestAddress);
636
637	if (!fAvailable)
638	{
639	if (fGuestAddressRequired)
640	hrc = E_ACCESSDENIED;
641	else
642	hrc = pState->autoAssign(pszDevName, GuestAddress);
643	}
644	}
645
646	if (FAILED(hrc))
647	return hrc;
648
649	Assert(GuestAddress.valid() && pState->checkAvailable(GuestAddress));
650
651	hrc = pState->record(pszDevName, GuestAddress, HostAddress);
652	if (FAILED(hrc))
653	return hrc;
654
655	PCVMMR3VTABLE const pVMM = pState->mpVMM;
656	if (pCfg)
657	{
658	hrc = InsertConfigInteger(pVMM, pCfg, "PCIBusNo", GuestAddress.miBus);
659	if (FAILED(hrc))
660	return hrc;
661	hrc = InsertConfigInteger(pVMM, pCfg, "PCIDeviceNo", GuestAddress.miDevice);
662	if (FAILED(hrc))
663	return hrc;
664	hrc = InsertConfigInteger(pVMM, pCfg, "PCIFunctionNo", GuestAddress.miFn);
665	if (FAILED(hrc))
666	return hrc;
667	}
668
669	/* Check if the bus is still unknown, i.e. the bridge to it is missing */
670	if ( GuestAddress.miBus > 0
671	&& !hasPCIDevice(pState->mpszBridgeName, GuestAddress.miBus - 1))
672	{
673	PCFGMNODE pDevices = pVMM->pfnCFGMR3GetParent(pVMM->pfnCFGMR3GetParent(pCfg));
674	AssertLogRelMsgReturn(pDevices, ("BusAssignmentManager: cannot find base device configuration\n"), E_UNEXPECTED);
675	PCFGMNODE pBridges = pVMM->pfnCFGMR3GetChild(pDevices, "ich9pcibridge");
676	AssertLogRelMsgReturn(pBridges, ("BusAssignmentManager: cannot find bridge configuration base\n"), E_UNEXPECTED);
677
678	/* Device should be on a not yet existing bus, add it automatically */
679	for (int iBridge = 0; iBridge <= GuestAddress.miBus - 1; iBridge++)
680	{
681	if (!hasPCIDevice(pState->mpszBridgeName, iBridge))
682	{
683	PCIBusAddress BridgeGuestAddress;
684	hrc = pState->autoAssign(pState->mpszBridgeName, BridgeGuestAddress);
685	if (FAILED(hrc))
686	return hrc;
687	if (BridgeGuestAddress.miBus > iBridge)
688	AssertLogRelMsgFailedReturn(("BusAssignmentManager: cannot create bridge for bus %i because the possible parent bus positions are exhausted\n", iBridge + 1), E_UNEXPECTED);
689
690	PCFGMNODE pInst;
691	InsertConfigNode(pVMM, pBridges, Utf8StrFmt("%d", iBridge).c_str(), &pInst);
692	InsertConfigInteger(pVMM, pInst, "Trusted", 1);
693	hrc = assignPCIDevice(pState->mpszBridgeName, pInst);
694	if (FAILED(hrc))
695	return hrc;
696	}
697	}
698	}
699
700	return S_OK;
701	}
702
703
704	bool BusAssignmentManager::findPCIAddress(const char *pszDevName, int iInstance, PCIBusAddress& Address)
705	{
706	return pState->findPCIAddress(pszDevName, iInstance, Address);
707	}
708	void BusAssignmentManager::listAttachedPCIDevices(std::vector<PCIDeviceInfo> &aAttached)
709	{
710	pState->listAttachedPCIDevices(aAttached);
711	}

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source: vbox/trunk/src/VBox/Main/src-client/BusAssignmentManager.cpp@ 100842

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