DevPciIch9.cpp@ 87766

Last change on this file since 87766 was 85912, checked in by vboxsync, 4 years ago
AMD IOMMU: bugref:9654 Split IOMMU data into relevant headers to share it with other devices/VMM (ACPI, chipset, maybe Main and firmware in the future).
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1	/* $Id: DevPciIch9.cpp 85912 2020-08-28 07:17:55Z vboxsync $ */
2	/** @file
3	* DevPCI - ICH9 southbridge PCI bus emulation device.
4	*
5	* @remarks We'll be slowly promoting the code in this file to common PCI bus
6	* code. Function without 'static' and using 'devpci' as prefix is
7	* also used by DevPCI.cpp and have a prototype in DevPciInternal.h.
8	*
9	* For the time being the DevPciMerge1.cpp.h file will remain separate,
10	* due to 5.1. We can merge it into this one later in the dev cycle.
11	*
12	* DO NOT use the PDMPciDev* or PCIDev* family of functions in this
13	* file except in the two callbacks for config space access (and the
14	* functions which are used exclusively by that code) and the two
15	* device constructors when setting up the config space for the
16	* bridges. Everything else need extremely careful review. Using
17	* them elsewhere (especially in the init code) causes weird failures
18	* with PCI passthrough, as it would only update the array of
19	* (emulated) config space, but not talk to the actual device (needs
20	* invoking the respective callback).
21	*/
22
23	/*
24	* Copyright (C) 2010-2020 Oracle Corporation
25	*
26	* This file is part of VirtualBox Open Source Edition (OSE), as
27	* available from http://www.virtualbox.org. This file is free software;
28	* you can redistribute it and/or modify it under the terms of the GNU
29	* General Public License (GPL) as published by the Free Software
30	* Foundation, in version 2 as it comes in the "COPYING" file of the
31	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
32	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
33	*/
34
35
36	/*********************************************************************************************************************************
37	* Header Files *
38	*********************************************************************************************************************************/
39	#define LOG_GROUP LOG_GROUP_DEV_PCI
40	#define PDMPCIDEV_INCLUDE_PRIVATE /* Hack to get pdmpcidevint.h included at the right point. */
41	#include <VBox/vmm/pdmpcidev.h>
42
43	#include <VBox/AssertGuest.h>
44	#include <VBox/msi.h>
45	#ifdef VBOX_WITH_IOMMU_AMD
46	# include <VBox/iommu-amd.h>
47	#endif
48	#include <VBox/vmm/pdmdev.h>
49	#include <VBox/vmm/mm.h>
50	#include <iprt/asm.h>
51	#include <iprt/assert.h>
52	#include <iprt/string.h>
53	#ifdef IN_RING3
54	# include <iprt/mem.h>
55	# include <iprt/uuid.h>
56	#endif
57
58	#include "PciInline.h"
59	#include "VBoxDD.h"
60	#include "MsiCommon.h"
61	#include "DevPciInternal.h"
62	#ifdef VBOX_WITH_IOMMU_AMD
63	# include "../Bus/DevIommuAmd.h"
64	#endif
65
66
67	/*********************************************************************************************************************************
68	* Structures and Typedefs *
69	*********************************************************************************************************************************/
70	/**
71	* PCI configuration space address.
72	*/
73	typedef struct
74	{
75	uint8_t iBus;
76	uint8_t iDeviceFunc;
77	uint16_t iRegister;
78	} PciAddress;
79
80
81	/*********************************************************************************************************************************
82	* Defined Constants And Macros *
83	*********************************************************************************************************************************/
84	/** Saved state version of the ICH9 PCI bus device. */
85	#define VBOX_ICH9PCI_SAVED_STATE_VERSION VBOX_ICH9PCI_SAVED_STATE_VERSION_4KB_CFG_SPACE
86	/** 4KB config space */
87	#define VBOX_ICH9PCI_SAVED_STATE_VERSION_4KB_CFG_SPACE 4
88	/** Adds I/O region types and sizes for dealing changes in resource regions. */
89	#define VBOX_ICH9PCI_SAVED_STATE_VERSION_REGION_SIZES 3
90	/** This appears to be the first state we need to care about. */
91	#define VBOX_ICH9PCI_SAVED_STATE_VERSION_MSI 2
92	/** This is apparently not supported or has a grossly incomplete state, juding
93	* from hints in the code. */
94	#define VBOX_ICH9PCI_SAVED_STATE_VERSION_NOMSI 1
95
96	/** Invalid PCI region mapping address. */
97	#define INVALID_PCI_ADDRESS UINT32_MAX
98
99
100	/*********************************************************************************************************************************
101	* Internal Functions *
102	*********************************************************************************************************************************/
103	/* Prototypes */
104	static void ich9pciSetIrqInternal(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUSCC pBusCC,
105	uint8_t uDevFn, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc);
106	#ifdef IN_RING3
107	static int ich9pciFakePCIBIOS(PPDMDEVINS pDevIns);
108	DECLINLINE(PPDMPCIDEV) ich9pciFindBridge(PDEVPCIBUS pBus, uint8_t uBus);
109	static void ich9pciBiosInitAllDevicesOnBus(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus);
110	static bool ich9pciBiosInitAllDevicesPrefetchableOnBus(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus, bool fUse64Bit, bool fDryrun);
111	#endif
112
113
114	/**
115	* See 7.2.2. PCI Express Enhanced Configuration Mechanism for details of address
116	* mapping, we take n=6 approach
117	*/
118	DECLINLINE(void) ich9pciPhysToPciAddr(PDEVPCIROOT pPciRoot, RTGCPHYS off, PciAddress *pPciAddr)
119	{
120	NOREF(pPciRoot);
121	pPciAddr->iBus = (off >> 20) & ((1<<6) - 1);
122	pPciAddr->iDeviceFunc = (off >> 12) & ((1<<(5+3)) - 1); // 5 bits - device, 3 bits - function
123	pPciAddr->iRegister = (off >> 0) & ((1<<(6+4+2)) - 1); // 6 bits - register, 4 bits - extended register, 2 bits -Byte Enable
124	RT_UNTRUSTED_VALIDATED_FENCE(); /* paranoia */
125	}
126
127	DECLINLINE(void) ich9pciStateToPciAddr(PDEVPCIROOT pPciRoot, RTGCPHYS addr, PciAddress *pPciAddr)
128	{
129	pPciAddr->iBus = (pPciRoot->uConfigReg >> 16) & 0xff;
130	pPciAddr->iDeviceFunc = (pPciRoot->uConfigReg >> 8) & 0xff;
131	pPciAddr->iRegister = (pPciRoot->uConfigReg & 0xfc) \| (addr & 3);
132	RT_UNTRUSTED_VALIDATED_FENCE(); /* paranoia */
133	}
134
135	static DECLCALLBACK(void) ich9pciSetIrq(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc)
136	{
137	LogFlowFunc(("invoked by %p/%d: iIrq=%d iLevel=%d uTagSrc=%#x\n", pDevIns, pDevIns->iInstance, iIrq, iLevel, uTagSrc));
138	ich9pciSetIrqInternal(pDevIns, PDMINS_2_DATA(pDevIns, PDEVPCIROOT), PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC),
139	pPciDev->uDevFn, pPciDev, iIrq, iLevel, uTagSrc);
140	}
141
142	/**
143	* Worker for ich9pcibridgeSetIrq and pcibridgeSetIrq that walks up to the root
144	* bridges and permutates iIrq accordingly.
145	*
146	* See ich9pciBiosInitAllDevicesOnBus for corresponding configuration code.
147	*/
148	DECLHIDDEN(PPDMDEVINS) devpcibridgeCommonSetIrqRootWalk(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq,
149	PDEVPCIBUS ppBus, uint8_t puDevFnBridge, int *piIrqPinBridge)
150	{
151	PDEVPCIBUSCC const pBridgeBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC); /* For keep using our own pcihlp. */
152	PPDMDEVINS const pBridgeDevIns = pDevIns; /* ditto */
153
154	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
155	PPDMDEVINS pDevInsBus;
156	PPDMPCIDEV pPciDevBus = pDevIns->apPciDevs[0];
157	uint8_t uDevFnBridge = pPciDevBus->uDevFn;
158	int iIrqPinBridge = ((pPciDev->uDevFn >> 3) + iIrq) & 3;
159	uint64_t bmSeen[256/64] = { 0, 0, 0, 0 };
160	AssertCompile(sizeof(pPciDevBus->Int.s.idxPdmBus) == 1);
161	ASMBitSet(bmSeen, pPciDevBus->Int.s.idxPdmBus);
162
163	/* Walk the chain until we reach the host bus. */
164	Assert(pBus->iBus != 0);
165	for (;;)
166	{
167	/* Get the parent. */
168	pDevInsBus = pBridgeBusCC->CTX_SUFF(pPciHlp)->pfnGetBusByNo(pBridgeDevIns, pPciDevBus->Int.s.idxPdmBus);
169	AssertLogRelReturn(pDevInsBus, NULL);
170
171	pBus = PDMINS_2_DATA(pDevInsBus, PDEVPCIBUS);
172	pPciDevBus = pDevInsBus->apPciDevs[0];
173	if (pBus->iBus == 0)
174	{
175	*ppBus = pBus;
176	*puDevFnBridge = uDevFnBridge;
177	*piIrqPinBridge = iIrqPinBridge;
178	return pDevInsBus;
179	}
180
181	uDevFnBridge = pPciDevBus->uDevFn;
182	iIrqPinBridge = ((uDevFnBridge >> 3) + iIrqPinBridge) & 3;
183
184	/* Make sure that we cannot end up in a loop here: */
185	AssertCompile(sizeof(pPciDevBus->Int.s.idxPdmBus) == 1);
186	AssertMsgReturn(ASMBitTestAndSet(bmSeen, pPciDevBus->Int.s.idxPdmBus),
187	("idxPdmBus=%u\n", pPciDevBus->Int.s.idxPdmBus),
188	NULL);
189	}
190
191	}
192
193	static DECLCALLBACK(void) ich9pcibridgeSetIrq(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc)
194	{
195	/*
196	* The PCI-to-PCI bridge specification defines how the interrupt pins
197	* are routed from the secondary to the primary bus (see chapter 9).
198	* iIrq gives the interrupt pin the pci device asserted.
199	* We change iIrq here according to the spec and call the SetIrq function
200	* of our parent passing the device which asserted the interrupt instead of the device of the bridge.
201	*
202	* See ich9pciBiosInitAllDevicesOnBus for corresponding configuration code.
203	*/
204	PDEVPCIBUS pBus;
205	uint8_t uDevFnBridge;
206	int iIrqPinBridge;
207	PPDMDEVINS pDevInsBus = devpcibridgeCommonSetIrqRootWalk(pDevIns, pPciDev, iIrq, &pBus, &uDevFnBridge, &iIrqPinBridge);
208	AssertReturnVoid(pDevInsBus);
209	AssertMsg(pBus->iBus == 0, ("This is not the host pci bus iBus=%d\n", pBus->iBus));
210	Assert(pDevInsBus->pReg == &g_DevicePciIch9); /* ASSUMPTION: Same style root bus. Need callback interface to mix types. */
211
212	/*
213	* For MSI/MSI-X enabled devices the iIrq doesn't denote the pin but rather a vector which is completely
214	* orthogonal to the pin based approach. The vector is not subject to the pin based routing with PCI bridges.
215	*/
216	int iIrqPinVector = iIrqPinBridge;
217	if ( MsiIsEnabled(pPciDev)
218	\|\| MsixIsEnabled(pPciDev))
219	iIrqPinVector = iIrq;
220	ich9pciSetIrqInternal(pDevInsBus, DEVPCIBUS_2_DEVPCIROOT(pBus), PDMINS_2_DATA_CC(pDevInsBus, PDEVPCIBUSCC),
221	uDevFnBridge, pPciDev, iIrqPinVector, iLevel, uTagSrc);
222	}
223
224	#ifdef IN_RING3
225
226	/**
227	* @callback_method_impl{FNIOMIOPORTNEWOUT,
228	* Port I/O Handler for Fake PCI BIOS trigger OUT operations at 0410h.}
229	*/
230	static DECLCALLBACK(VBOXSTRICTRC)
231	ich9pciR3IOPortMagicPCIWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
232	{
233	Assert(offPort == 0); RT_NOREF2(pvUser, offPort);
234	LogFlowFunc(("offPort=%#x u32=%#x cb=%d\n", offPort, u32, cb));
235	if (cb == 4)
236	{
237	if (u32 == UINT32_C(19200509)) // Richard Adams
238	{
239	int rc = ich9pciFakePCIBIOS(pDevIns);
240	AssertRC(rc);
241	}
242	}
243
244	return VINF_SUCCESS;
245	}
246
247
248	/**
249	* @callback_method_impl{FNIOMIOPORTNEWIN,
250	* Port I/O Handler for Fake PCI BIOS trigger IN operations at 0410h.}
251	*/
252	static DECLCALLBACK(VBOXSTRICTRC)
253	ich9pciR3IOPortMagicPCIRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
254	{
255	Assert(offPort == 0); RT_NOREF5(pDevIns, pvUser, offPort, pu32, cb);
256	LogFunc(("offPort=%#x cb=%d VERR_IOM_IOPORT_UNUSED\n", offPort, cb));
257	return VERR_IOM_IOPORT_UNUSED;
258	}
259
260	#endif /* IN_RING3 */
261
262	/**
263	* @callback_method_impl{FNIOMIOPORTNEWOUT,
264	* Port I/O Handler for PCI address OUT operations.}
265	*
266	* Emulates writes to Configuration Address Port at 0CF8h for Configuration
267	* Mechanism \#1.
268	*/
269	static DECLCALLBACK(VBOXSTRICTRC)
270	ich9pciIOPortAddressWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
271	{
272	LogFlowFunc(("offPort=%#x u32=%#x cb=%d\n", offPort, u32, cb));
273	Assert(offPort == 0); RT_NOREF2(offPort, pvUser);
274	if (cb == 4)
275	{
276	PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
277
278	/*
279	* bits [1:0] are hard-wired, read-only and must return zeroes
280	* when read.
281	*/
282	u32 &= ~3;
283
284	PCI_LOCK(pDevIns, VINF_IOM_R3_IOPORT_WRITE);
285	pThis->uConfigReg = u32;
286	PCI_UNLOCK(pDevIns);
287	}
288
289	return VINF_SUCCESS;
290	}
291
292
293	/**
294	* @callback_method_impl{FNIOMIOPORTNEWIN,
295	* Port I/O Handler for PCI data IN operations.}
296	*
297	* Emulates reads from Configuration Address Port at 0CF8h for Configuration
298	* Mechanism \#1.
299	*/
300	static DECLCALLBACK(VBOXSTRICTRC)
301	ich9pciIOPortAddressRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
302	{
303	Assert(offPort == 0); RT_NOREF2(offPort, pvUser);
304	if (cb == 4)
305	{
306	PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
307
308	PCI_LOCK(pDevIns, VINF_IOM_R3_IOPORT_READ);
309	*pu32 = pThis->uConfigReg;
310	PCI_UNLOCK(pDevIns);
311
312	LogFlowFunc(("offPort=%#x cb=%d -> %#x\n", offPort, cb, *pu32));
313	return VINF_SUCCESS;
314	}
315
316	LogFunc(("offPort=%#x cb=%d VERR_IOM_IOPORT_UNUSED\n", offPort, cb));
317	return VERR_IOM_IOPORT_UNUSED;
318	}
319
320
321	/**
322	* Perform configuration space write.
323	*/
324	static VBOXSTRICTRC ich9pciConfigWrite(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PciAddress const *pPciAddr,
325	uint32_t u32Value, int cb, int rcReschedule)
326	{
327	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
328
329	if (pPciAddr->iBus != 0) /* forward to subordinate bus */
330	{
331	if (pPciRoot->PciBus.cBridges)
332	{
333	#ifdef IN_RING3 /** @todo do lookup in R0/RC too! r=klaus don't think that it can work, since the config space access callback only works in R3 */
334	PPDMPCIDEV pBridgeDevice = ich9pciFindBridge(&pPciRoot->PciBus, pPciAddr->iBus);
335	if (pBridgeDevice)
336	{
337	AssertPtr(pBridgeDevice->Int.s.pfnBridgeConfigWrite);
338	rcStrict = pBridgeDevice->Int.s.pfnBridgeConfigWrite(pBridgeDevice->Int.s.CTX_SUFF(pDevIns), pPciAddr->iBus,
339	pPciAddr->iDeviceFunc, pPciAddr->iRegister, cb, u32Value);
340	}
341	#else
342	rcStrict = rcReschedule;
343	#endif
344	}
345	}
346	else /* forward to directly connected device */
347	{
348	R3PTRTYPE(PDMPCIDEV *) pPciDev = pPciRoot->PciBus.apDevices[pPciAddr->iDeviceFunc];
349	if (pPciDev)
350	{
351	#ifdef IN_RING3
352	rcStrict = VINF_PDM_PCI_DO_DEFAULT;
353	if (pPciDev->Int.s.pfnConfigWrite)
354	rcStrict = pPciDev->Int.s.pfnConfigWrite(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev,
355	pPciAddr->iRegister, cb, u32Value);
356	if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
357	rcStrict = devpciR3CommonConfigWriteWorker(pDevIns, PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC),
358	pPciDev, pPciAddr->iRegister, cb, u32Value);
359	RT_NOREF(rcReschedule);
360	#else
361	rcStrict = rcReschedule;
362	RT_NOREF(pDevIns, u32Value, cb);
363	#endif
364	}
365	}
366
367	Log2Func(("%02x:%02x.%u reg %x(%u) %x %Rrc\n", pPciAddr->iBus, pPciAddr->iDeviceFunc >> 3, pPciAddr->iDeviceFunc & 0x7,
368	pPciAddr->iRegister, cb, u32Value, VBOXSTRICTRC_VAL(rcStrict)));
369	return rcStrict;
370	}
371
372
373	/**
374	* @callback_method_impl{FNIOMIOPORTNEWOUT,
375	* Port I/O Handler for PCI data OUT operations.}
376	*
377	* Emulates writes to Configuration Data Port at 0CFCh for Configuration
378	* Mechanism \#1.
379	*/
380	static DECLCALLBACK(VBOXSTRICTRC)
381	ich9pciIOPortDataWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
382	{
383	PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
384	LogFlowFunc(("offPort=%u u32=%#x cb=%d (config=%#10x)\n", offPort, u32, cb, pThis->uConfigReg));
385	Assert(offPort < 4); NOREF(pvUser);
386
387	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
388	if (!(offPort % cb))
389	{
390	PCI_LOCK(pDevIns, VINF_IOM_R3_IOPORT_WRITE);
391
392	if (pThis->uConfigReg & (1 << 31))
393	{
394
395	/* Decode target device from Configuration Address Port */
396	PciAddress aPciAddr;
397	ich9pciStateToPciAddr(pThis, offPort, &aPciAddr);
398
399	/* Perform configuration space write */
400	rcStrict = ich9pciConfigWrite(pDevIns, pThis, &aPciAddr, u32, cb, VINF_IOM_R3_IOPORT_WRITE);
401	}
402
403	PCI_UNLOCK(pDevIns);
404	}
405	else
406	AssertMsgFailed(("Unaligned write to offPort=%u u32=%#x cb=%d\n", offPort, u32, cb));
407
408	return rcStrict;
409	}
410
411
412	/**
413	* Perform configuration space read.
414	*/
415	static VBOXSTRICTRC ich9pciConfigRead(PDEVPCIROOT pPciRoot, PciAddress* pPciAddr, int cb, uint32_t *pu32Value, int rcReschedule)
416	{
417	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
418	#ifdef IN_RING3
419	NOREF(rcReschedule);
420	#else
421	NOREF(cb);
422	#endif
423
424	if (pPciAddr->iBus != 0) /* forward to subordinate bus */
425	{
426	if (pPciRoot->PciBus.cBridges)
427	{
428	#ifdef IN_RING3 /** @todo do lookup in R0/RC too! r=klaus don't think that it can work, since the config space access callback only works in R3 */
429	PPDMPCIDEV pBridgeDevice = ich9pciFindBridge(&pPciRoot->PciBus, pPciAddr->iBus);
430	if (pBridgeDevice)
431	{
432	AssertPtr(pBridgeDevice->Int.s.pfnBridgeConfigRead);
433	rcStrict = pBridgeDevice->Int.s.pfnBridgeConfigRead(pBridgeDevice->Int.s.CTX_SUFF(pDevIns), pPciAddr->iBus,
434	pPciAddr->iDeviceFunc, pPciAddr->iRegister, cb, pu32Value);
435	}
436	else
437	*pu32Value = UINT32_MAX;
438	#else
439	rcStrict = rcReschedule;
440	#endif
441	}
442	else
443	*pu32Value = 0xffffffff;
444	}
445	else /* forward to directly connected device */
446	{
447	R3PTRTYPE(PDMPCIDEV *) pPciDev = pPciRoot->PciBus.apDevices[pPciAddr->iDeviceFunc];
448	if (pPciDev)
449	{
450	#ifdef IN_RING3
451	rcStrict = VINF_PDM_PCI_DO_DEFAULT;
452	if (pPciDev->Int.s.pfnConfigRead)
453	rcStrict = pPciDev->Int.s.pfnConfigRead(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev,
454	pPciAddr->iRegister, cb, pu32Value);
455	if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
456	rcStrict = devpciR3CommonConfigReadWorker(pPciDev, pPciAddr->iRegister, cb, pu32Value);
457	#else
458	rcStrict = rcReschedule;
459	#endif
460	}
461	else
462	*pu32Value = UINT32_MAX;
463	}
464
465	Log3Func(("%02x:%02x.%d reg %x(%d) gave %x %Rrc\n", pPciAddr->iBus, pPciAddr->iDeviceFunc >> 3, pPciAddr->iDeviceFunc & 0x7,
466	pPciAddr->iRegister, cb, *pu32Value, VBOXSTRICTRC_VAL(rcStrict) ));
467	return rcStrict;
468	}
469
470
471	/**
472	* @callback_method_impl{FNIOMIOPORTNEWIN,
473	* Port I/O Handler for PCI data IN operations.}
474	*
475	* Emulates reads from Configuration Data Port at 0CFCh for Configuration
476	* Mechanism \#1.
477	*/
478	static DECLCALLBACK(VBOXSTRICTRC)
479	ich9pciIOPortDataRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
480	{
481	NOREF(pvUser);
482	Assert(offPort < 4);
483	if (!(offPort % cb))
484	{
485	PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
486	*pu32 = 0xffffffff;
487
488	PCI_LOCK(pDevIns, VINF_IOM_R3_IOPORT_READ);
489
490	/* Configuration space mapping enabled? */
491	VBOXSTRICTRC rcStrict;
492	if (!(pThis->uConfigReg & (1 << 31)))
493	rcStrict = VINF_SUCCESS;
494	else
495	{
496	/* Decode target device and configuration space register */
497	PciAddress aPciAddr;
498	ich9pciStateToPciAddr(pThis, offPort, &aPciAddr);
499
500	/* Perform configuration space read */
501	rcStrict = ich9pciConfigRead(pThis, &aPciAddr, cb, pu32, VINF_IOM_R3_IOPORT_READ);
502	}
503
504	PCI_UNLOCK(pDevIns);
505
506	LogFlowFunc(("offPort=%u cb=%#x (config=%#10x) -> %#x (%Rrc)\n", offPort, cb, *pu32, pThis->uConfigReg, VBOXSTRICTRC_VAL(rcStrict)));
507	return rcStrict;
508	}
509	AssertMsgFailed(("Unaligned read from offPort=%u cb=%d\n", offPort, cb));
510	return VERR_IOM_IOPORT_UNUSED;
511	}
512
513
514	/* Compute mapping of PCI slot and IRQ number to APIC interrupt line */
515	DECLINLINE(int) ich9pciSlot2ApicIrq(uint8_t uSlot, int irq_num)
516	{
517	return (irq_num + uSlot) & 7;
518	}
519
520	#ifdef IN_RING3
521
522	/* return the global irq number corresponding to a given device irq
523	pin. We could also use the bus number to have a more precise
524	mapping. This is the implementation note described in the PCI spec chapter 2.2.6 */
525	DECLINLINE(int) ich9pciSlotGetPirq(uint8_t uBus, uint8_t uDevFn, uint8_t uIrqNum)
526	{
527	NOREF(uBus);
528	int iSlotAddend = (uDevFn >> 3) - 1;
529	return (uIrqNum + iSlotAddend) & 3;
530	}
531
532	/* irqs corresponding to PCI irqs A-D, must match pci_irq_list in pcibios.inc */
533	/** @todo r=klaus inconsistent! ich9 doesn't implement PIRQ yet, so both needs to be addressed and tested thoroughly. */
534	static const uint8_t aPciIrqs[4] = { 11, 10, 9, 5 };
535
536	#endif /* IN_RING3 */
537
538	/* Add one more level up request on APIC input line */
539	DECLINLINE(void) ich9pciApicLevelUp(PDEVPCIROOT pPciRoot, int irq_num)
540	{
541	ASMAtomicIncU32(&pPciRoot->auPciApicIrqLevels[irq_num]);
542	}
543
544	/* Remove one level up request on APIC input line */
545	DECLINLINE(void) ich9pciApicLevelDown(PDEVPCIROOT pPciRoot, int irq_num)
546	{
547	ASMAtomicDecU32(&pPciRoot->auPciApicIrqLevels[irq_num]);
548	}
549
550	static void ich9pciApicSetIrq(PPDMDEVINS pDevIns, PDEVPCIBUS pBus, PDEVPCIBUSCC pBusCC,
551	uint8_t uDevFn, PDMPCIDEV *pPciDev, int irq_num1, int iLevel, uint32_t uTagSrc, int iForcedIrq)
552	{
553	/* This is only allowed to be called with a pointer to the root bus. */
554	AssertMsg(pBus->iBus == 0, ("iBus=%u\n", pBus->iBus));
555	uint16_t const uBusDevFn = PCIBDF_MAKE(pBus->iBus, uDevFn);
556
557	if (iForcedIrq == -1)
558	{
559	int apic_irq, apic_level;
560	PDEVPCIROOT pPciRoot = DEVPCIBUS_2_DEVPCIROOT(pBus);
561	int irq_num = ich9pciSlot2ApicIrq(uDevFn >> 3, irq_num1);
562
563	if ((iLevel & PDM_IRQ_LEVEL_HIGH) == PDM_IRQ_LEVEL_HIGH)
564	ich9pciApicLevelUp(pPciRoot, irq_num);
565	else if ((iLevel & PDM_IRQ_LEVEL_HIGH) == PDM_IRQ_LEVEL_LOW)
566	ich9pciApicLevelDown(pPciRoot, irq_num);
567
568	apic_irq = irq_num + 0x10;
569	apic_level = pPciRoot->auPciApicIrqLevels[irq_num] != 0;
570	Log3Func(("%s: irq_num1=%d level=%d apic_irq=%d apic_level=%d irq_num1=%d uTagSrc=%#x\n",
571	R3STRING(pPciDev->pszNameR3), irq_num1, iLevel, apic_irq, apic_level, irq_num, uTagSrc));
572	pBusCC->CTX_SUFF(pPciHlp)->pfnIoApicSetIrq(pDevIns, uBusDevFn, apic_irq, apic_level, uTagSrc);
573
574	if ((iLevel & PDM_IRQ_LEVEL_FLIP_FLOP) == PDM_IRQ_LEVEL_FLIP_FLOP)
575	{
576	/*
577	* we raised it few lines above, as PDM_IRQ_LEVEL_FLIP_FLOP has
578	* PDM_IRQ_LEVEL_HIGH bit set
579	*/
580	ich9pciApicLevelDown(pPciRoot, irq_num);
581	pPciDev->Int.s.uIrqPinState = PDM_IRQ_LEVEL_LOW;
582	apic_level = pPciRoot->auPciApicIrqLevels[irq_num] != 0;
583	Log3Func(("%s: irq_num1=%d level=%d apic_irq=%d apic_level=%d irq_num1=%d uTagSrc=%#x (flop)\n",
584	R3STRING(pPciDev->pszNameR3), irq_num1, iLevel, apic_irq, apic_level, irq_num, uTagSrc));
585	pBusCC->CTX_SUFF(pPciHlp)->pfnIoApicSetIrq(pDevIns, uBusDevFn, apic_irq, apic_level, uTagSrc);
586	}
587	} else {
588	Log3Func(("(forced) %s: irq_num1=%d level=%d acpi_irq=%d uTagSrc=%#x\n",
589	R3STRING(pPciDev->pszNameR3), irq_num1, iLevel, iForcedIrq, uTagSrc));
590	pBusCC->CTX_SUFF(pPciHlp)->pfnIoApicSetIrq(pDevIns, uBusDevFn, iForcedIrq, iLevel, uTagSrc);
591	}
592	}
593
594	static void ich9pciSetIrqInternal(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUSCC pBusCC,
595	uint8_t uDevFn, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc)
596	{
597	/* If MSI or MSI-X is enabled, PCI INTx# signals are disabled regardless of the PCI command
598	* register interrupt bit state.
599	* PCI 3.0 (section 6.8) forbids MSI and MSI-X to be enabled at the same time and makes
600	* that undefined behavior. We check for MSI first, then MSI-X.
601	*/
602	if (MsiIsEnabled(pPciDev))
603	{
604	Assert(!MsixIsEnabled(pPciDev)); /* Not allowed -- see note above. */
605	LogFlowFunc(("PCI Dev %p : MSI\n", pPciDev));
606	MsiNotify(pDevIns, pBusCC->CTX_SUFF(pPciHlp), pPciDev, iIrq, iLevel, uTagSrc);
607	return;
608	}
609
610	if (MsixIsEnabled(pPciDev))
611	{
612	LogFlowFunc(("PCI Dev %p : MSI-X\n", pPciDev));
613	MsixNotify(pDevIns, pBusCC->CTX_SUFF(pPciHlp), pPciDev, iIrq, iLevel, uTagSrc);
614	return;
615	}
616
617	PDEVPCIBUS pBus = &pPciRoot->PciBus;
618	/* safe, only needs to go to the config space array */
619	const bool fIsAcpiDevice = PDMPciDevGetDeviceId(pPciDev) == 0x7113;
620
621	LogFlowFunc(("PCI Dev %p : IRQ\n", pPciDev));
622	/* Check if the state changed. */
623	if (pPciDev->Int.s.uIrqPinState != iLevel)
624	{
625	pPciDev->Int.s.uIrqPinState = (iLevel & PDM_IRQ_LEVEL_HIGH);
626
627	/** @todo r=klaus: implement PIRQ handling (if APIC isn't active). Needed for legacy OSes which don't use the APIC stuff. */
628
629	/* Send interrupt to I/O APIC only now. */
630	if (fIsAcpiDevice)
631	/*
632	* ACPI needs special treatment since SCI is hardwired and
633	* should not be affected by PCI IRQ routing tables at the
634	* same time SCI IRQ is shared in PCI sense hence this
635	* kludge (i.e. we fetch the hardwired value from ACPIs
636	* PCI device configuration space).
637	*/
638	/* safe, only needs to go to the config space array */
639	ich9pciApicSetIrq(pDevIns, pBus, pBusCC, uDevFn, pPciDev, -1, iLevel, uTagSrc, PDMPciDevGetInterruptLine(pPciDev));
640	else
641	ich9pciApicSetIrq(pDevIns, pBus, pBusCC, uDevFn, pPciDev, iIrq, iLevel, uTagSrc, -1);
642	}
643	}
644
645
646	/**
647	* @callback_method_impl{FNIOMMMIONEWWRITE,
648	* Emulates writes to configuration space.}
649	*/
650	static DECLCALLBACK(VBOXSTRICTRC) ich9pciMcfgMMIOWrite(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS off, void const pv, unsigned cb)
651	{
652	PDEVPCIROOT pPciRoot = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
653	Log2Func(("%RGp LB %d\n", off, cb));
654	NOREF(pvUser);
655
656	/* Decode target device and configuration space register */
657	PciAddress aDest;
658	ich9pciPhysToPciAddr(pPciRoot, off, &aDest);
659
660	/* Get the value. */
661	uint32_t u32;
662	switch (cb)
663	{
664	case 1:
665	u32 = (uint8_t const )pv;
666	break;
667	case 2:
668	u32 = (uint16_t const )pv;
669	break;
670	case 4:
671	u32 = (uint32_t const )pv;
672	break;
673	default:
674	ASSERT_GUEST_MSG_FAILED(("cb=%u off=%RGp\n", cb, off)); /** @todo how the heck should this work? Split it, right? */
675	u32 = 0;
676	break;
677	}
678
679	/* Perform configuration space write */
680	PCI_LOCK(pDevIns, VINF_IOM_R3_MMIO_WRITE);
681	VBOXSTRICTRC rcStrict = ich9pciConfigWrite(pDevIns, pPciRoot, &aDest, u32, cb, VINF_IOM_R3_MMIO_WRITE);
682	PCI_UNLOCK(pDevIns);
683
684	return rcStrict;
685	}
686
687
688	/**
689	* @callback_method_impl{FNIOMMMIONEWWRITE,
690	* Emulates reads from configuration space.}
691	*/
692	static DECLCALLBACK(VBOXSTRICTRC) ich9pciMcfgMMIORead(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS off, void pv, unsigned cb)
693	{
694	PDEVPCIROOT pPciRoot = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
695	LogFlowFunc(("%RGp LB %u\n", off, cb));
696	NOREF(pvUser);
697
698	/* Decode target device and configuration space register */
699	PciAddress aDest;
700	ich9pciPhysToPciAddr(pPciRoot, off, &aDest);
701
702	/* Perform configuration space read */
703	uint32_t u32Value = 0;
704	PCI_LOCK(pDevIns, VINF_IOM_R3_MMIO_READ);
705	VBOXSTRICTRC rcStrict = ich9pciConfigRead(pPciRoot, &aDest, cb, &u32Value, VINF_IOM_R3_MMIO_READ);
706	PCI_UNLOCK(pDevIns);
707
708	if (RT_SUCCESS(rcStrict)) /** @todo this is wrong, though it probably works fine due to double buffering... */
709	{
710	switch (cb)
711	{
712	case 1:
713	(uint8_t )pv = (uint8_t)u32Value;
714	break;
715	case 2:
716	(uint16_t )pv = (uint16_t)u32Value;
717	break;
718	case 4:
719	(uint32_t )pv = u32Value;
720	break;
721	default:
722	ASSERT_GUEST_MSG_FAILED(("cb=%u off=%RGp\n", cb, off)); /** @todo how the heck should this work? Split it, right? */
723	break;
724	}
725	}
726
727	return VBOXSTRICTRC_TODO(rcStrict);
728	}
729
730	#ifdef IN_RING3
731
732	DECLINLINE(PPDMPCIDEV) ich9pciFindBridge(PDEVPCIBUS pBus, uint8_t uBus)
733	{
734	/* Search for a fitting bridge. */
735	for (uint32_t iBridge = 0; iBridge < pBus->cBridges; iBridge++)
736	{
737	/*
738	* Examine secondary and subordinate bus number.
739	* If the target bus is in the range we pass the request on to the bridge.
740	*/
741	PPDMPCIDEV pBridge = pBus->papBridgesR3[iBridge];
742	AssertMsg(pBridge && pciDevIsPci2PciBridge(pBridge),
743	("Device is not a PCI bridge but on the list of PCI bridges\n"));
744	/* safe, only needs to go to the config space array */
745	uint32_t uSecondary = PDMPciDevGetByte(pBridge, VBOX_PCI_SECONDARY_BUS);
746	/* safe, only needs to go to the config space array */
747	uint32_t uSubordinate = PDMPciDevGetByte(pBridge, VBOX_PCI_SUBORDINATE_BUS);
748	Log3Func(("bus %p, bridge %d: %d in %d..%d\n", pBus, iBridge, uBus, uSecondary, uSubordinate));
749	if (uBus >= uSecondary && uBus <= uSubordinate)
750	return pBridge;
751	}
752
753	/* Nothing found. */
754	return NULL;
755	}
756
757	uint32_t devpciR3GetCfg(PPDMPCIDEV pPciDev, int32_t iRegister, int cb)
758	{
759	uint32_t u32Value = UINT32_MAX;
760	VBOXSTRICTRC rcStrict = VINF_PDM_PCI_DO_DEFAULT;
761	if (pPciDev->Int.s.pfnConfigRead)
762	rcStrict = pPciDev->Int.s.pfnConfigRead(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev, iRegister, cb, &u32Value);
763	if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
764	rcStrict = devpciR3CommonConfigReadWorker(pPciDev, iRegister, cb, &u32Value);
765	AssertRCSuccess(VBOXSTRICTRC_VAL(rcStrict));
766	return u32Value;
767	}
768
769	DECLINLINE(uint32_t) devpciGetRegionReg(int iRegion)
770	{
771	return iRegion == VBOX_PCI_ROM_SLOT
772	? VBOX_PCI_ROM_ADDRESS : (VBOX_PCI_BASE_ADDRESS_0 + iRegion * 4);
773	}
774
775	/**
776	* Worker for devpciR3SetByte(), devpciR3SetWord() and devpciR3SetDWord(), also
777	* used during state restore.
778	*/
779	void devpciR3SetCfg(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int32_t iRegister, uint32_t u32Value, int cb)
780	{
781	Assert(cb <= 4 && cb != 3);
782	VBOXSTRICTRC rcStrict = VINF_PDM_PCI_DO_DEFAULT;
783	if (pPciDev->Int.s.pfnConfigWrite)
784	rcStrict = pPciDev->Int.s.pfnConfigWrite(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev, iRegister, cb, u32Value);
785	if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
786	rcStrict = devpciR3CommonConfigWriteWorker(pDevIns, PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC),
787	pPciDev, iRegister, cb, u32Value);
788	AssertRCSuccess(VBOXSTRICTRC_VAL(rcStrict));
789	}
790
791
792	/* -=-=-=-=-=- PCI Bus Interface Methods (PDMPCIBUSREG) -=-=-=-=-=- */
793
794	/**
795	* Search for a completely unused device entry (all 8 functions are unused).
796	*
797	* @returns VBox status code.
798	* @param pBus The bus to register with.
799	* @remarks Caller enters the PDM critical section.
800	*/
801	static uint8_t devpciR3CommonFindUnusedDeviceNo(PDEVPCIBUS pBus)
802	{
803	for (uint8_t uPciDevNo = pBus->iDevSearch >> VBOX_PCI_DEVFN_DEV_SHIFT; uPciDevNo < VBOX_PCI_MAX_DEVICES; uPciDevNo++)
804	if ( !pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, 0)]
805	&& !pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, 1)]
806	&& !pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, 2)]
807	&& !pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, 3)]
808	&& !pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, 4)]
809	&& !pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, 5)]
810	&& !pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, 6)]
811	&& !pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, 7)])
812	return uPciDevNo;
813	return UINT8_MAX;
814	}
815
816
817
818	/**
819	* Registers the device with the specified PCI bus.
820	*
821	* This is shared between the pci bus and pci bridge code.
822	*
823	* @returns VBox status code.
824	* @param pDevIns The PCI bus device instance.
825	* @param pBus The bus to register with.
826	* @param pPciDev The PCI device structure.
827	* @param fFlags Reserved for future use, PDMPCIDEVREG_F_MBZ.
828	* @param uPciDevNo PDMPCIDEVREG_DEV_NO_FIRST_UNUSED, or a specific
829	* device number (0-31).
830	* @param uPciFunNo PDMPCIDEVREG_FUN_NO_FIRST_UNUSED, or a specific
831	* function number (0-7).
832	* @param pszName Device name (static but not unique).
833	*
834	* @remarks Caller enters the PDM critical section.
835	*/
836	static int devpciR3CommonRegisterDeviceOnBus(PPDMDEVINS pDevIns, PDEVPCIBUS pBus, PPDMPCIDEV pPciDev, uint32_t fFlags,
837	uint8_t uPciDevNo, uint8_t uPciFunNo, const char *pszName)
838	{
839	RT_NOREF(pDevIns);
840
841	/*
842	* Validate input.
843	*/
844	AssertPtrReturn(pszName, VERR_INVALID_POINTER);
845	AssertPtrReturn(pPciDev, VERR_INVALID_POINTER);
846	AssertReturn(!(fFlags & ~PDMPCIDEVREG_F_VALID_MASK), VERR_INVALID_FLAGS);
847	AssertReturn(uPciDevNo < VBOX_PCI_MAX_DEVICES \|\| uPciDevNo == PDMPCIDEVREG_DEV_NO_FIRST_UNUSED, VERR_INVALID_PARAMETER);
848	AssertReturn(uPciFunNo < VBOX_PCI_MAX_FUNCTIONS \|\| uPciFunNo == PDMPCIDEVREG_FUN_NO_FIRST_UNUSED, VERR_INVALID_PARAMETER);
849
850	/*
851	* Assign device & function numbers.
852	*/
853
854	/* Work the optional assignment flag. */
855	if (fFlags & PDMPCIDEVREG_F_NOT_MANDATORY_NO)
856	{
857	AssertLogRelMsgReturn(uPciDevNo < VBOX_PCI_MAX_DEVICES && uPciFunNo < VBOX_PCI_MAX_FUNCTIONS,
858	("PDMPCIDEVREG_F_NOT_MANDATORY_NO not implemented for #Dev=%#x / #Fun=%#x\n", uPciDevNo, uPciFunNo),
859	VERR_NOT_IMPLEMENTED);
860	if (pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uPciFunNo)])
861	{
862	uPciDevNo = PDMPCIDEVREG_DEV_NO_FIRST_UNUSED;
863	uPciFunNo = PDMPCIDEVREG_FUN_NO_FIRST_UNUSED;
864	}
865	}
866
867	if (uPciDevNo == PDMPCIDEVREG_DEV_NO_FIRST_UNUSED)
868	{
869	/* Just find the next unused device number and we're good. */
870	uPciDevNo = devpciR3CommonFindUnusedDeviceNo(pBus);
871	AssertLogRelMsgReturn(uPciDevNo < VBOX_PCI_MAX_DEVICES, ("Couldn't find a free spot!\n"), VERR_PDM_TOO_PCI_MANY_DEVICES);
872	if (uPciFunNo == PDMPCIDEVREG_FUN_NO_FIRST_UNUSED)
873	uPciFunNo = 0;
874	}
875	else
876	{
877	/*
878	* Direct assignment of device number can be more complicated.
879	*/
880	PPDMPCIDEV pClash;
881	if (uPciFunNo != PDMPCIDEVREG_FUN_NO_FIRST_UNUSED)
882	{
883	/* In the case of a specified function, we only relocate an existing
884	device if it belongs to a different device instance. Reasoning is
885	that the device should figure out it's own function assignments.
886	Note! We could make this more flexible by relocating functions assigned
887	via PDMPCIDEVREG_FUN_NO_FIRST_UNUSED, but it can wait till it's needed. */
888	pClash = pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uPciFunNo)];
889	if (!pClash)
890	{ /* likely */ }
891	else if (pClash->Int.s.pDevInsR3 == pPciDev->Int.s.pDevInsR3)
892	AssertLogRelMsgFailedReturn(("PCI Configuration conflict at %u.%u: %s vs %s (same pDevIns)!\n",
893	uPciDevNo, uPciFunNo, pClash->pszNameR3, pszName),
894	VERR_PDM_TOO_PCI_MANY_DEVICES);
895	else if (!pClash->Int.s.fReassignableDevNo)
896	AssertLogRelMsgFailedReturn(("PCI Configuration conflict at %u.%u: %s vs %s (different pDevIns)!\n",
897	uPciDevNo, uPciFunNo, pClash->pszNameR3, pszName),
898	VERR_PDM_TOO_PCI_MANY_DEVICES);
899	}
900	else
901	{
902	/* First unused function slot. Again, we only relocate the whole
903	thing if all the device instance differs, because we otherwise
904	reason that a device should manage its own functions correctly. */
905	unsigned cSameDevInses = 0;
906	for (uPciFunNo = 0, pClash = NULL; uPciFunNo < VBOX_PCI_MAX_FUNCTIONS; uPciFunNo++)
907	{
908	pClash = pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uPciFunNo)];
909	if (!pClash)
910	break;
911	cSameDevInses += pClash->Int.s.pDevInsR3 == pPciDev->Int.s.pDevInsR3;
912	}
913	if (!pClash)
914	Assert(uPciFunNo < VBOX_PCI_MAX_FUNCTIONS);
915	else
916	AssertLogRelMsgReturn(cSameDevInses == 0,
917	("PCI Configuration conflict at %u.* appending %s (%u of %u pDevIns matches)!\n",
918	uPciDevNo, pszName, cSameDevInses, VBOX_PCI_MAX_FUNCTIONS),
919	VERR_PDM_TOO_PCI_MANY_DEVICES);
920	}
921	if (pClash)
922	{
923	/*
924	* Try relocate the existing device.
925	*/
926	/* Check that all functions can be moved. */
927	for (uint8_t uMoveFun = 0; uMoveFun < VBOX_PCI_MAX_FUNCTIONS; uMoveFun++)
928	{
929	PPDMPCIDEV pMovePciDev = pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uMoveFun)];
930	AssertLogRelMsgReturn(!pMovePciDev \|\| pMovePciDev->Int.s.fReassignableDevNo,
931	("PCI Configuration conflict at %u.%u: %s vs %s\n",
932	uPciDevNo, uMoveFun, pMovePciDev->pszNameR3, pszName),
933	VERR_PDM_TOO_PCI_MANY_DEVICES);
934	}
935
936	/* Find a free device number to move it to. */
937	uint8_t uMoveToDevNo = devpciR3CommonFindUnusedDeviceNo(pBus);
938	Assert(uMoveToDevNo != uPciFunNo);
939	AssertLogRelMsgReturn(uMoveToDevNo < VBOX_PCI_MAX_DEVICES,
940	("No space to relocate device at %u so '%s' can be placed there instead!\n", uPciFunNo, pszName),
941	VERR_PDM_TOO_PCI_MANY_DEVICES);
942
943	/* Execute the move. */
944	for (uint8_t uMoveFun = 0; uMoveFun < VBOX_PCI_MAX_FUNCTIONS; uMoveFun++)
945	{
946	PPDMPCIDEV pMovePciDev = pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uMoveFun)];
947	if (pMovePciDev)
948	{
949	Log(("PCI: Relocating '%s' from %u.%u to %u.%u.\n", pMovePciDev->pszNameR3, uPciDevNo, uMoveFun, uMoveToDevNo, uMoveFun));
950	pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uMoveFun)] = NULL;
951	pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uMoveToDevNo, uMoveFun)] = pMovePciDev;
952	pMovePciDev->uDevFn = VBOX_PCI_DEVFN_MAKE(uMoveToDevNo, uMoveFun);
953	}
954	}
955	}
956	}
957
958	/*
959	* Now, initialize the rest of the PCI device structure.
960	*/
961	Assert(!pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uPciFunNo)]);
962	pBus->apDevices[VBOX_PCI_DEVFN_MAKE(uPciDevNo, uPciFunNo)] = pPciDev;
963
964	pPciDev->uDevFn = VBOX_PCI_DEVFN_MAKE(uPciDevNo, uPciFunNo);
965	pPciDev->Int.s.pBusR3 = pBus;
966	Assert(pBus == PDMINS_2_DATA(pDevIns, PDEVPCIBUS));
967	pPciDev->Int.s.pfnConfigRead = NULL;
968	pPciDev->Int.s.pfnConfigWrite = NULL;
969	pPciDev->Int.s.hMmioMsix = NIL_IOMMMIOHANDLE;
970	if (pBus->fTypePiix3 && pPciDev->cbConfig > 256)
971	pPciDev->cbConfig = 256;
972
973	/* Remember and mark bridges. */
974	if (fFlags & PDMPCIDEVREG_F_PCI_BRIDGE)
975	{
976	AssertLogRelMsgReturn(pBus->cBridges < RT_ELEMENTS(pBus->apDevices),
977	("Number of bridges exceeds the number of possible devices on the bus\n"),
978	VERR_INTERNAL_ERROR_3);
979	pBus->papBridgesR3[pBus->cBridges++] = pPciDev;
980	pciDevSetPci2PciBridge(pPciDev);
981	}
982
983	Log(("PCI: Registered device %d function %d (%#x) '%s'.\n",
984	uPciDevNo, uPciFunNo, UINT32_C(0x80000000) \| (pPciDev->uDevFn << 8), pszName));
985
986	return VINF_SUCCESS;
987	}
988
989
990	/**
991	* @interface_method_impl{PDMPCIBUSREGR3,pfnRegisterR3}
992	*/
993	DECLCALLBACK(int) devpciR3CommonRegisterDevice(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t fFlags,
994	uint8_t uPciDevNo, uint8_t uPciFunNo, const char *pszName)
995	{
996	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
997	AssertCompileMemberOffset(DEVPCIROOT, PciBus, 0);
998	return devpciR3CommonRegisterDeviceOnBus(pDevIns, pBus, pPciDev, fFlags, uPciDevNo, uPciFunNo, pszName);
999	}
1000
1001
1002	/**
1003	* @interface_method_impl{PDMPCIBUSREGR3,pfnRegisterR3}
1004	*/
1005	DECLCALLBACK(int) devpcibridgeR3CommonRegisterDevice(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t fFlags,
1006	uint8_t uPciDevNo, uint8_t uPciFunNo, const char *pszName)
1007	{
1008	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1009	return devpciR3CommonRegisterDeviceOnBus(pDevIns, pBus, pPciDev, fFlags, uPciDevNo, uPciFunNo, pszName);
1010	}
1011
1012
1013	static DECLCALLBACK(int) ich9pciRegisterMsi(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, PPDMMSIREG pMsiReg)
1014	{
1015	//PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1016	PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
1017
1018	int rc = MsiR3Init(pPciDev, pMsiReg);
1019	if (RT_SUCCESS(rc))
1020	rc = MsixR3Init(pBusCC->CTX_SUFF(pPciHlp), pPciDev, pMsiReg);
1021
1022	return rc;
1023	}
1024
1025
1026	/**
1027	* @interface_method_impl{PDMPCIBUSREGR3,pfnIORegionRegisterR3}
1028	*/
1029	DECLCALLBACK(int) devpciR3CommonIORegionRegister(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, uint32_t iRegion,
1030	RTGCPHYS cbRegion, PCIADDRESSSPACE enmType, uint32_t fFlags,
1031	uint64_t hHandle, PFNPCIIOREGIONMAP pfnMapUnmap)
1032	{
1033	LogFunc(("%s: region #%u size %RGp type %x fFlags=%#x hHandle=%#RX64\n",
1034	pPciDev->pszNameR3, iRegion, cbRegion, enmType, fFlags, hHandle));
1035	RT_NOREF(pDevIns);
1036
1037	/*
1038	* Validate.
1039	*/
1040	AssertMsgReturn( enmType == (PCI_ADDRESS_SPACE_MEM \| PCI_ADDRESS_SPACE_BAR32)
1041	\|\| enmType == (PCI_ADDRESS_SPACE_MEM_PREFETCH \| PCI_ADDRESS_SPACE_BAR32)
1042	\|\| enmType == (PCI_ADDRESS_SPACE_MEM \| PCI_ADDRESS_SPACE_BAR64)
1043	\|\| enmType == (PCI_ADDRESS_SPACE_MEM_PREFETCH \| PCI_ADDRESS_SPACE_BAR64)
1044	\|\| enmType == PCI_ADDRESS_SPACE_IO
1045	,
1046	("Invalid enmType=%#x? Or was this a bitmask after all...\n", enmType),
1047	VERR_INVALID_PARAMETER);
1048	AssertMsgReturn((unsigned)iRegion < VBOX_PCI_NUM_REGIONS,
1049	("Invalid iRegion=%d VBOX_PCI_NUM_REGIONS=%d\n", iRegion, VBOX_PCI_NUM_REGIONS),
1050	VERR_INVALID_PARAMETER);
1051	int iLastSet = ASMBitLastSetU64(cbRegion);
1052	AssertMsgReturn( iLastSet != 0
1053	&& RT_BIT_64(iLastSet - 1) == cbRegion,
1054	("Invalid cbRegion=%RGp iLastSet=%#x (not a power of 2 or 0)\n", cbRegion, iLastSet),
1055	VERR_INVALID_PARAMETER);
1056	switch (fFlags & PDMPCIDEV_IORGN_F_HANDLE_MASK)
1057	{
1058	case PDMPCIDEV_IORGN_F_IOPORT_HANDLE:
1059	case PDMPCIDEV_IORGN_F_MMIO_HANDLE:
1060	case PDMPCIDEV_IORGN_F_MMIO2_HANDLE:
1061	AssertReturn(hHandle != UINT64_MAX, VERR_INVALID_HANDLE);
1062	break;
1063	default:
1064	AssertReturn(hHandle == UINT64_MAX, VERR_INVALID_HANDLE);
1065	}
1066
1067	/* Make sure that we haven't marked this region as continuation of 64-bit region. */
1068	AssertReturn(pPciDev->Int.s.aIORegions[iRegion].type != 0xff, VERR_NOT_AVAILABLE);
1069
1070	/*
1071	* Register the I/O region.
1072	*/
1073	PPCIIOREGION pRegion = &pPciDev->Int.s.aIORegions[iRegion];
1074	pRegion->addr = INVALID_PCI_ADDRESS;
1075	pRegion->size = cbRegion;
1076	pRegion->fFlags = fFlags;
1077	pRegion->hHandle = hHandle;
1078	pRegion->type = enmType;
1079	pRegion->pfnMap = pfnMapUnmap;
1080
1081	if ((enmType & PCI_ADDRESS_SPACE_BAR64) != 0)
1082	{
1083	/* VBOX_PCI_BASE_ADDRESS_5 and VBOX_PCI_ROM_ADDRESS are excluded. */
1084	AssertMsgReturn(iRegion < VBOX_PCI_NUM_REGIONS - 2,
1085	("Region %d cannot be 64-bit\n", iRegion),
1086	VERR_INVALID_PARAMETER);
1087	/* Mark next region as continuation of this one. */
1088	pPciDev->Int.s.aIORegions[iRegion + 1].type = 0xff;
1089	}
1090
1091	/* Set type in the PCI config space. */
1092	AssertCompile(PCI_ADDRESS_SPACE_MEM == 0);
1093	AssertCompile(PCI_ADDRESS_SPACE_IO == 1);
1094	AssertCompile(PCI_ADDRESS_SPACE_BAR64 == RT_BIT_32(2));
1095	AssertCompile(PCI_ADDRESS_SPACE_MEM_PREFETCH == RT_BIT_32(3));
1096	uint32_t u32Value = (uint32_t)enmType & (PCI_ADDRESS_SPACE_IO \| PCI_ADDRESS_SPACE_BAR64 \| PCI_ADDRESS_SPACE_MEM_PREFETCH);
1097	/* safe, only needs to go to the config space array */
1098	PDMPciDevSetDWord(pPciDev, devpciGetRegionReg(iRegion), u32Value);
1099
1100	return VINF_SUCCESS;
1101	}
1102
1103
1104	/**
1105	* @interface_method_impl{PDMPCIBUSREGR3,pfnInterceptConfigAccesses}
1106	*/
1107	DECLCALLBACK(void) devpciR3CommonInterceptConfigAccesses(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev,
1108	PFNPCICONFIGREAD pfnRead, PFNPCICONFIGWRITE pfnWrite)
1109	{
1110	NOREF(pDevIns);
1111
1112	pPciDev->Int.s.pfnConfigRead = pfnRead;
1113	pPciDev->Int.s.pfnConfigWrite = pfnWrite;
1114	}
1115
1116
1117	static int ich9pciR3CommonSaveExec(PDEVPCIBUS pBus, PSSMHANDLE pSSM)
1118	{
1119	/*
1120	* Iterate thru all the devices.
1121	*/
1122	for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
1123	{
1124	PPDMPCIDEV pDev = pBus->apDevices[uDevFn];
1125	if (pDev)
1126	{
1127	/* Device position */
1128	SSMR3PutU32(pSSM, uDevFn);
1129
1130	/* PCI config registers */
1131	SSMR3PutU32(pSSM, sizeof(pDev->abConfig));
1132	SSMR3PutMem(pSSM, pDev->abConfig, sizeof(pDev->abConfig));
1133
1134	/* Device flags */
1135	SSMR3PutU32(pSSM, pDev->Int.s.fFlags);
1136
1137	/* IRQ pin state */
1138	SSMR3PutS32(pSSM, pDev->Int.s.uIrqPinState);
1139
1140	/* MSI info */
1141	SSMR3PutU8(pSSM, pDev->Int.s.u8MsiCapOffset);
1142	SSMR3PutU8(pSSM, pDev->Int.s.u8MsiCapSize);
1143
1144	/* MSI-X info */
1145	SSMR3PutU8(pSSM, pDev->Int.s.u8MsixCapOffset);
1146	SSMR3PutU8(pSSM, pDev->Int.s.u8MsixCapSize);
1147
1148	/* Save MSI-X page state */
1149	if (pDev->Int.s.u8MsixCapOffset != 0)
1150	{
1151	SSMR3PutU32(pSSM, pDev->Int.s.cbMsixRegion);
1152	SSMR3PutMem(pSSM, pDev->abMsixState, pDev->Int.s.cbMsixRegion);
1153	}
1154	else
1155	SSMR3PutU32(pSSM, 0);
1156
1157	/* Save the type an size of all the regions. */
1158	for (uint32_t iRegion = 0; iRegion < VBOX_PCI_NUM_REGIONS; iRegion++)
1159	{
1160	SSMR3PutU8(pSSM, pDev->Int.s.aIORegions[iRegion].type);
1161	SSMR3PutU64(pSSM, pDev->Int.s.aIORegions[iRegion].size);
1162	}
1163	}
1164	}
1165	return SSMR3PutU32(pSSM, UINT32_MAX); /* terminator */
1166	}
1167
1168	static DECLCALLBACK(int) ich9pciR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1169	{
1170	PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
1171
1172	/*
1173	* Bus state data.
1174	*/
1175	SSMR3PutU32(pSSM, pThis->uConfigReg);
1176
1177	/*
1178	* Save IRQ states.
1179	*/
1180	for (unsigned i = 0; i < RT_ELEMENTS(pThis->auPciApicIrqLevels); i++)
1181	SSMR3PutU32(pSSM, pThis->auPciApicIrqLevels[i]);
1182
1183	SSMR3PutU32(pSSM, UINT32_MAX); /* separator */
1184
1185	return ich9pciR3CommonSaveExec(&pThis->PciBus, pSSM);
1186	}
1187
1188
1189	static DECLCALLBACK(int) ich9pcibridgeR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1190	{
1191	PDEVPCIBUS pThis = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1192	return ich9pciR3CommonSaveExec(pThis, pSSM);
1193	}
1194
1195
1196	/**
1197	* @callback_method_impl{FNPCIBRIDGECONFIGWRITE}
1198	*/
1199	static DECLCALLBACK(VBOXSTRICTRC) ich9pcibridgeConfigWrite(PPDMDEVINSR3 pDevIns, uint8_t iBus, uint8_t iDevice,
1200	uint32_t u32Address, unsigned cb, uint32_t u32Value)
1201	{
1202	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1203	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
1204	LogFlowFunc(("pDevIns=%p iBus=%d iDevice=%d u32Address=%#x cb=%d u32Value=%#x\n", pDevIns, iBus, iDevice, u32Address, cb, u32Value));
1205
1206	/* If the current bus is not the target bus search for the bus which contains the device. */
1207	/* safe, only needs to go to the config space array */
1208	if (iBus != PDMPciDevGetByte(pDevIns->apPciDevs[0], VBOX_PCI_SECONDARY_BUS))
1209	{
1210	PPDMPCIDEV pBridgeDevice = ich9pciFindBridge(pBus, iBus);
1211	if (pBridgeDevice)
1212	{
1213	AssertPtr(pBridgeDevice->Int.s.pfnBridgeConfigWrite);
1214	pBridgeDevice->Int.s.pfnBridgeConfigWrite(pBridgeDevice->Int.s.CTX_SUFF(pDevIns), iBus, iDevice,
1215	u32Address, cb, u32Value);
1216	}
1217	}
1218	else
1219	{
1220	/* This is the target bus, pass the write to the device. */
1221	PPDMPCIDEV pPciDev = pBus->apDevices[iDevice];
1222	if (pPciDev)
1223	{
1224	LogFunc(("%s: addr=%02x val=%08x len=%d\n", pPciDev->pszNameR3, u32Address, u32Value, cb));
1225	rcStrict = VINF_PDM_PCI_DO_DEFAULT;
1226	if (pPciDev->Int.s.pfnConfigWrite)
1227	rcStrict = pPciDev->Int.s.pfnConfigWrite(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev, u32Address, cb, u32Value);
1228	if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
1229	rcStrict = devpciR3CommonConfigWriteWorker(pDevIns, PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC),
1230	pPciDev, u32Address, cb, u32Value);
1231	}
1232	}
1233	return rcStrict;
1234	}
1235
1236	/**
1237	* @callback_method_impl{FNPCIBRIDGECONFIGREAD}
1238	*/
1239	static DECLCALLBACK(VBOXSTRICTRC) ich9pcibridgeConfigRead(PPDMDEVINSR3 pDevIns, uint8_t iBus, uint8_t iDevice,
1240	uint32_t u32Address, unsigned cb, uint32_t *pu32Value)
1241	{
1242	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1243	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
1244	LogFlowFunc(("pDevIns=%p iBus=%d iDevice=%d u32Address=%#x cb=%d\n", pDevIns, iBus, iDevice, u32Address, cb));
1245
1246	/* If the current bus is not the target bus search for the bus which contains the device. */
1247	/* safe, only needs to go to the config space array */
1248	if (iBus != PDMPciDevGetByte(pDevIns->apPciDevs[0], VBOX_PCI_SECONDARY_BUS))
1249	{
1250	PPDMPCIDEV pBridgeDevice = ich9pciFindBridge(pBus, iBus);
1251	if (pBridgeDevice)
1252	{
1253	AssertPtr(pBridgeDevice->Int.s.pfnBridgeConfigRead);
1254	rcStrict = pBridgeDevice->Int.s.pfnBridgeConfigRead(pBridgeDevice->Int.s.CTX_SUFF(pDevIns), iBus, iDevice,
1255	u32Address, cb, pu32Value);
1256	}
1257	else
1258	*pu32Value = UINT32_MAX;
1259	}
1260	else
1261	{
1262	/* This is the target bus, pass the read to the device. */
1263	PPDMPCIDEV pPciDev = pBus->apDevices[iDevice];
1264	if (pPciDev)
1265	{
1266	rcStrict = VINF_PDM_PCI_DO_DEFAULT;
1267	if (pPciDev->Int.s.pfnConfigRead)
1268	rcStrict = pPciDev->Int.s.pfnConfigRead(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev, u32Address, cb, pu32Value);
1269	if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
1270	rcStrict = devpciR3CommonConfigReadWorker(pPciDev, u32Address, cb, pu32Value);
1271	LogFunc(("%s: u32Address=%02x pu32Value=%#010x cb=%d\n", pPciDev->pszNameR3, u32Address, pu32Value, cb));
1272	}
1273	else
1274	*pu32Value = UINT32_MAX;
1275	}
1276
1277	return rcStrict;
1278	}
1279
1280
1281
1282	/* -=-=-=-=-=- Saved State -=-=-=-=-=- */
1283
1284
1285	/**
1286	* Common routine for restoring the config registers of a PCI device.
1287	*
1288	* @param pDevIns The device instance of the PC bus.
1289	* @param pDev The PCI device.
1290	* @param pbSrcConfig The configuration register values to be loaded.
1291	*/
1292	void devpciR3CommonRestoreConfig(PPDMDEVINS pDevIns, PPDMPCIDEV pDev, uint8_t const *pbSrcConfig)
1293	{
1294	/*
1295	* This table defines the fields for normal devices and bridge devices, and
1296	* the order in which they need to be restored.
1297	*/
1298	static const struct PciField
1299	{
1300	uint8_t off;
1301	uint8_t cb;
1302	uint8_t fWritable;
1303	uint8_t fBridge;
1304	const char *pszName;
1305	} s_aFields[] =
1306	{
1307	/* off,cb,fW,fB, pszName */
1308	{ 0x00, 2, 0, 3, "VENDOR_ID" },
1309	{ 0x02, 2, 0, 3, "DEVICE_ID" },
1310	{ 0x06, 2, 1, 3, "STATUS" },
1311	{ 0x08, 1, 0, 3, "REVISION_ID" },
1312	{ 0x09, 1, 0, 3, "CLASS_PROG" },
1313	{ 0x0a, 1, 0, 3, "CLASS_SUB" },
1314	{ 0x0b, 1, 0, 3, "CLASS_BASE" },
1315	{ 0x0c, 1, 1, 3, "CACHE_LINE_SIZE" },
1316	{ 0x0d, 1, 1, 3, "LATENCY_TIMER" },
1317	{ 0x0e, 1, 0, 3, "HEADER_TYPE" },
1318	{ 0x0f, 1, 1, 3, "BIST" },
1319	{ 0x10, 4, 1, 3, "BASE_ADDRESS_0" },
1320	{ 0x14, 4, 1, 3, "BASE_ADDRESS_1" },
1321	{ 0x18, 4, 1, 1, "BASE_ADDRESS_2" },
1322	{ 0x18, 1, 1, 2, "PRIMARY_BUS" },
1323	{ 0x19, 1, 1, 2, "SECONDARY_BUS" },
1324	{ 0x1a, 1, 1, 2, "SUBORDINATE_BUS" },
1325	{ 0x1b, 1, 1, 2, "SEC_LATENCY_TIMER" },
1326	{ 0x1c, 4, 1, 1, "BASE_ADDRESS_3" },
1327	{ 0x1c, 1, 1, 2, "IO_BASE" },
1328	{ 0x1d, 1, 1, 2, "IO_LIMIT" },
1329	{ 0x1e, 2, 1, 2, "SEC_STATUS" },
1330	{ 0x20, 4, 1, 1, "BASE_ADDRESS_4" },
1331	{ 0x20, 2, 1, 2, "MEMORY_BASE" },
1332	{ 0x22, 2, 1, 2, "MEMORY_LIMIT" },
1333	{ 0x24, 4, 1, 1, "BASE_ADDRESS_5" },
1334	{ 0x24, 2, 1, 2, "PREF_MEMORY_BASE" },
1335	{ 0x26, 2, 1, 2, "PREF_MEMORY_LIMIT" },
1336	{ 0x28, 4, 0, 1, "CARDBUS_CIS" },
1337	{ 0x28, 4, 1, 2, "PREF_BASE_UPPER32" },
1338	{ 0x2c, 2, 0, 1, "SUBSYSTEM_VENDOR_ID" },
1339	{ 0x2c, 4, 1, 2, "PREF_LIMIT_UPPER32" },
1340	{ 0x2e, 2, 0, 1, "SUBSYSTEM_ID" },
1341	{ 0x30, 4, 1, 1, "ROM_ADDRESS" },
1342	{ 0x30, 2, 1, 2, "IO_BASE_UPPER16" },
1343	{ 0x32, 2, 1, 2, "IO_LIMIT_UPPER16" },
1344	{ 0x34, 4, 0, 3, "CAPABILITY_LIST" },
1345	{ 0x38, 4, 1, 1, "RESERVED_38" },
1346	{ 0x38, 4, 1, 2, "ROM_ADDRESS_BR" },
1347	{ 0x3c, 1, 1, 3, "INTERRUPT_LINE" },
1348	{ 0x3d, 1, 0, 3, "INTERRUPT_PIN" },
1349	{ 0x3e, 1, 0, 1, "MIN_GNT" },
1350	{ 0x3e, 2, 1, 2, "BRIDGE_CONTROL" },
1351	{ 0x3f, 1, 0, 1, "MAX_LAT" },
1352	/* The COMMAND register must come last as it requires the ADDRESS
1353	registers to be restored before we pretent to change it from 0 to
1354	whatever value the guest assigned it. */
1355	{ 0x04, 2, 1, 3, "COMMAND" },
1356	};
1357
1358	#ifdef RT_STRICT
1359	/* Check that we've got full register coverage. */
1360	uint32_t bmDevice[0x40 / 32];
1361	uint32_t bmBridge[0x40 / 32];
1362	RT_ZERO(bmDevice);
1363	RT_ZERO(bmBridge);
1364	for (uint32_t i = 0; i < RT_ELEMENTS(s_aFields); i++)
1365	{
1366	uint8_t off = s_aFields[i].off;
1367	uint8_t cb = s_aFields[i].cb;
1368	uint8_t f = s_aFields[i].fBridge;
1369	while (cb-- > 0)
1370	{
1371	if (f & 1) AssertMsg(!ASMBitTest(bmDevice, off), ("%#x\n", off));
1372	if (f & 2) AssertMsg(!ASMBitTest(bmBridge, off), ("%#x\n", off));
1373	if (f & 1) ASMBitSet(bmDevice, off);
1374	if (f & 2) ASMBitSet(bmBridge, off);
1375	off++;
1376	}
1377	}
1378	for (uint32_t off = 0; off < 0x40; off++)
1379	{
1380	AssertMsg(ASMBitTest(bmDevice, off), ("%#x\n", off));
1381	AssertMsg(ASMBitTest(bmBridge, off), ("%#x\n", off));
1382	}
1383	#endif
1384
1385	/*
1386	* Loop thru the fields covering the 64 bytes of standard registers.
1387	*/
1388	uint8_t const fBridge = pciDevIsPci2PciBridge(pDev) ? 2 : 1;
1389	Assert(!pciDevIsPassthrough(pDev));
1390	uint8_t *pbDstConfig = &pDev->abConfig[0];
1391
1392	for (uint32_t i = 0; i < RT_ELEMENTS(s_aFields); i++)
1393	if (s_aFields[i].fBridge & fBridge)
1394	{
1395	uint8_t const off = s_aFields[i].off;
1396	uint8_t const cb = s_aFields[i].cb;
1397	uint32_t u32Src;
1398	uint32_t u32Dst;
1399	switch (cb)
1400	{
1401	case 1:
1402	u32Src = pbSrcConfig[off];
1403	u32Dst = pbDstConfig[off];
1404	break;
1405	case 2:
1406	u32Src = (uint16_t const )&pbSrcConfig[off];
1407	u32Dst = (uint16_t const )&pbDstConfig[off];
1408	break;
1409	case 4:
1410	u32Src = (uint32_t const )&pbSrcConfig[off];
1411	u32Dst = (uint32_t const )&pbDstConfig[off];
1412	break;
1413	default:
1414	AssertFailed();
1415	continue;
1416	}
1417
1418	if ( u32Src != u32Dst
1419	\|\| off == VBOX_PCI_COMMAND)
1420	{
1421	if (u32Src != u32Dst)
1422	{
1423	if (!s_aFields[i].fWritable)
1424	LogRel(("PCI: %8s/%u: %2u-bit field %s: %x -> %x - !READ ONLY!\n",
1425	pDev->pszNameR3, pDev->Int.s.CTX_SUFF(pDevIns)->iInstance, cb*8, s_aFields[i].pszName, u32Dst, u32Src));
1426	else
1427	LogRel(("PCI: %8s/%u: %2u-bit field %s: %x -> %x\n",
1428	pDev->pszNameR3, pDev->Int.s.CTX_SUFF(pDevIns)->iInstance, cb*8, s_aFields[i].pszName, u32Dst, u32Src));
1429	}
1430	if (off == VBOX_PCI_COMMAND)
1431	/* safe, only needs to go to the config space array */
1432	PDMPciDevSetCommand(pDev, 0); /* For remapping, see pciR3CommonLoadExec/ich9pciR3CommonLoadExec. */
1433	devpciR3SetCfg(pDevIns, pDev, off, u32Src, cb);
1434	}
1435	}
1436
1437	/*
1438	* The device dependent registers.
1439	*
1440	* We will not use ConfigWrite here as we have no clue about the size
1441	* of the registers, so the device is responsible for correctly
1442	* restoring functionality governed by these registers.
1443	*/
1444	for (uint32_t off = 0x40; off < sizeof(pDev->abConfig); off++)
1445	if (pbDstConfig[off] != pbSrcConfig[off])
1446	{
1447	LogRel(("PCI: %8s/%u: register %02x: %02x -> %02x\n",
1448	pDev->pszNameR3, pDev->Int.s.CTX_SUFF(pDevIns)->iInstance, off, pbDstConfig[off], pbSrcConfig[off])); /** @todo make this Log() later. */
1449	pbDstConfig[off] = pbSrcConfig[off];
1450	}
1451	}
1452
1453
1454	/**
1455	* @callback_method_impl{FNPCIIOREGIONOLDSETTER}
1456	*/
1457	static DECLCALLBACK(int) devpciR3CommonRestoreOldSetRegion(PPDMPCIDEV pPciDev, uint32_t iRegion,
1458	RTGCPHYS cbRegion, PCIADDRESSSPACE enmType)
1459	{
1460	AssertLogRelReturn(iRegion < RT_ELEMENTS(pPciDev->Int.s.aIORegions), VERR_INVALID_PARAMETER);
1461	pPciDev->Int.s.aIORegions[iRegion].type = enmType;
1462	pPciDev->Int.s.aIORegions[iRegion].size = cbRegion;
1463	return VINF_SUCCESS;
1464	}
1465
1466
1467	/**
1468	* @callback_method_impl{FNPCIIOREGIONSWAP}
1469	*/
1470	static DECLCALLBACK(int) devpciR3CommonRestoreSwapRegions(PPDMPCIDEV pPciDev, uint32_t iRegion, uint32_t iOtherRegion)
1471	{
1472	AssertReturn(iRegion < iOtherRegion, VERR_INVALID_PARAMETER);
1473	AssertLogRelReturn(iOtherRegion < RT_ELEMENTS(pPciDev->Int.s.aIORegions), VERR_INVALID_PARAMETER);
1474	AssertReturn(pPciDev->Int.s.bPadding0 == (0xe0 \| (uint8_t)iRegion), VERR_INVALID_PARAMETER);
1475
1476	PCIIOREGION Tmp = pPciDev->Int.s.aIORegions[iRegion];
1477	pPciDev->Int.s.aIORegions[iRegion] = pPciDev->Int.s.aIORegions[iOtherRegion];
1478	pPciDev->Int.s.aIORegions[iOtherRegion] = Tmp;
1479
1480	return VINF_SUCCESS;
1481	}
1482
1483
1484	/**
1485	* Checks for and deals with changes in resource sizes and types.
1486	*
1487	* @returns VBox status code.
1488	* @param pSSM The Saved state handle.
1489	* @param pPciDev The PCI device in question.
1490	* @param paIoRegions I/O regions with the size and type fields from
1491	* the saved state.
1492	* @param fNewState Set if this is a new state with I/O region sizes
1493	* and types, clear if old one.
1494	*/
1495	int devpciR3CommonRestoreRegions(PSSMHANDLE pSSM, PPDMPCIDEV pPciDev, PPCIIOREGION paIoRegions, bool fNewState)
1496	{
1497	int rc;
1498	if (fNewState)
1499	{
1500	for (uint32_t iRegion = 0; iRegion < VBOX_PCI_NUM_REGIONS; iRegion++)
1501	{
1502	if ( pPciDev->Int.s.aIORegions[iRegion].type != paIoRegions[iRegion].type
1503	\|\| pPciDev->Int.s.aIORegions[iRegion].size != paIoRegions[iRegion].size)
1504	{
1505	AssertLogRelMsgFailed(("PCI: %8s/%u: region #%u size/type load change: %#RGp/%#x -> %#RGp/%#x\n",
1506	pPciDev->pszNameR3, pPciDev->Int.s.CTX_SUFF(pDevIns)->iInstance, iRegion,
1507	pPciDev->Int.s.aIORegions[iRegion].size, pPciDev->Int.s.aIORegions[iRegion].type,
1508	paIoRegions[iRegion].size, paIoRegions[iRegion].type));
1509	if (pPciDev->pfnRegionLoadChangeHookR3)
1510	{
1511	pPciDev->Int.s.bPadding0 = 0xe0 \| (uint8_t)iRegion;
1512	rc = pPciDev->pfnRegionLoadChangeHookR3(pPciDev->Int.s.pDevInsR3, pPciDev, iRegion, paIoRegions[iRegion].size,
1513	(PCIADDRESSSPACE)paIoRegions[iRegion].type, NULL /pfnOldSetter/,
1514	devpciR3CommonRestoreSwapRegions);
1515	pPciDev->Int.s.bPadding0 = 0;
1516	if (RT_FAILURE(rc))
1517	return SSMR3SetLoadError(pSSM, rc, RT_SRC_POS,
1518	N_("Device %s/%u failed to respond to region #%u size/type changing from %#RGp/%#x to %#RGp/%#x: %Rrc"),
1519	pPciDev->pszNameR3, pPciDev->Int.s.CTX_SUFF(pDevIns)->iInstance, iRegion,
1520	pPciDev->Int.s.aIORegions[iRegion].size, pPciDev->Int.s.aIORegions[iRegion].type,
1521	paIoRegions[iRegion].size, paIoRegions[iRegion].type, rc);
1522	}
1523	pPciDev->Int.s.aIORegions[iRegion].type = paIoRegions[iRegion].type;
1524	pPciDev->Int.s.aIORegions[iRegion].size = paIoRegions[iRegion].size;
1525	}
1526	}
1527	}
1528	/* Old saved state without sizes and types. Do a special hook call to give
1529	devices with changes a chance to adjust resources back to old values. */
1530	else if (pPciDev->pfnRegionLoadChangeHookR3)
1531	{
1532	rc = pPciDev->pfnRegionLoadChangeHookR3(pPciDev->Int.s.pDevInsR3, pPciDev, UINT32_MAX, RTGCPHYS_MAX, (PCIADDRESSSPACE)-1,
1533	devpciR3CommonRestoreOldSetRegion, NULL);
1534	if (RT_FAILURE(rc))
1535	return SSMR3SetLoadError(pSSM, rc, RT_SRC_POS, N_("Device %s/%u failed to resize its resources: %Rrc"),
1536	pPciDev->pszNameR3, pPciDev->Int.s.CTX_SUFF(pDevIns)->iInstance, rc);
1537	}
1538	return VINF_SUCCESS;
1539	}
1540
1541
1542	/**
1543	* Common worker for ich9pciR3LoadExec and ich9pcibridgeR3LoadExec.
1544	*
1545	* @returns VBox status code.
1546	* @param pDevIns The device instance of the bus.
1547	* @param pBus The bus which data is being loaded.
1548	* @param pSSM The saved state handle.
1549	* @param uVersion The data version.
1550	* @param uPass The pass.
1551	*/
1552	static int ich9pciR3CommonLoadExec(PPDMDEVINS pDevIns, PDEVPCIBUS pBus, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1553	{
1554	uint32_t u32;
1555	int rc;
1556
1557	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
1558	if ( uVersion < VBOX_ICH9PCI_SAVED_STATE_VERSION_MSI
1559	\|\| uVersion > VBOX_ICH9PCI_SAVED_STATE_VERSION)
1560	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1561
1562	/*
1563	* Iterate thru all the devices and write 0 to the COMMAND register so
1564	* that all the memory is unmapped before we start restoring the saved
1565	* mapping locations.
1566	*
1567	* The register value is restored afterwards so we can do proper
1568	* LogRels in devpciR3CommonRestoreConfig.
1569	*/
1570	for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
1571	{
1572	PPDMPCIDEV pDev = pBus->apDevices[uDevFn];
1573	if (pDev)
1574	{
1575	/* safe, only needs to go to the config space array */
1576	uint16_t u16 = PDMPciDevGetCommand(pDev);
1577	devpciR3SetCfg(pDevIns, pDev, VBOX_PCI_COMMAND, 0 /u32Value/, 2 /cb/);
1578	/* safe, only needs to go to the config space array */
1579	PDMPciDevSetCommand(pDev, u16);
1580	/* safe, only needs to go to the config space array */
1581	Assert(PDMPciDevGetCommand(pDev) == u16);
1582	}
1583	}
1584
1585	/*
1586	* Iterate all the devices.
1587	*/
1588	for (uint32_t uDevFn = 0;; uDevFn++)
1589	{
1590	/* index / terminator */
1591	rc = SSMR3GetU32(pSSM, &u32);
1592	if (RT_FAILURE(rc))
1593	break;
1594	if (u32 == (uint32_t)~0)
1595	break;
1596	AssertLogRelMsgBreak(u32 < RT_ELEMENTS(pBus->apDevices) && u32 >= uDevFn, ("u32=%#x uDevFn=%#x\n", u32, uDevFn));
1597
1598	/* skip forward to the device checking that no new devices are present. */
1599	PPDMPCIDEV pDev;
1600	for (; uDevFn < u32; uDevFn++)
1601	{
1602	pDev = pBus->apDevices[uDevFn];
1603	if (pDev)
1604	{
1605	/* safe, only needs to go to the config space array */
1606	LogRel(("PCI: New device in slot %#x, %s (vendor=%#06x device=%#06x)\n", uDevFn, pDev->pszNameR3,
1607	PDMPciDevGetVendorId(pDev), PDMPciDevGetDeviceId(pDev)));
1608	if (SSMR3HandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT)
1609	{
1610	/* safe, only needs to go to the config space array */
1611	rc = SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("New device in slot %#x, %s (vendor=%#06x device=%#06x)"),
1612	uDevFn, pDev->pszNameR3, PDMPciDevGetVendorId(pDev), PDMPciDevGetDeviceId(pDev));
1613	break;
1614	}
1615	}
1616	}
1617	if (RT_FAILURE(rc))
1618	break;
1619	pDev = pBus->apDevices[uDevFn];
1620
1621	/* get the data */
1622	union
1623	{
1624	PDMPCIDEV DevTmp;
1625	uint8_t abPadding[RT_UOFFSETOF(PDMPCIDEV, abMsixState) + _32K + _16K]; /* the MSI-X state shouldn't be much more than 32KB. */
1626	} u;
1627	RT_ZERO(u);
1628	u.DevTmp.Int.s.fFlags = 0;
1629	u.DevTmp.Int.s.u8MsiCapOffset = 0;
1630	u.DevTmp.Int.s.u8MsiCapSize = 0;
1631	u.DevTmp.Int.s.u8MsixCapOffset = 0;
1632	u.DevTmp.Int.s.u8MsixCapSize = 0;
1633	u.DevTmp.Int.s.uIrqPinState = ~0; /* Invalid value in case we have an older saved state to force a state change in pciSetIrq. */
1634	uint32_t cbConfig = 256;
1635	if (uVersion >= VBOX_ICH9PCI_SAVED_STATE_VERSION_4KB_CFG_SPACE)
1636	{
1637	rc = SSMR3GetU32(pSSM, &cbConfig);
1638	AssertRCReturn(rc, rc);
1639	if (cbConfig != 256 && cbConfig != _4K)
1640	return SSMR3SetLoadError(pSSM, VERR_SSM_DATA_UNIT_FORMAT_CHANGED, RT_SRC_POS,
1641	"cbConfig=%#RX32, expected 0x100 or 0x1000", cbConfig);
1642	}
1643	SSMR3GetMem(pSSM, u.DevTmp.abConfig, cbConfig);
1644
1645	SSMR3GetU32(pSSM, &u.DevTmp.Int.s.fFlags);
1646	SSMR3GetS32(pSSM, &u.DevTmp.Int.s.uIrqPinState);
1647	SSMR3GetU8(pSSM, &u.DevTmp.Int.s.u8MsiCapOffset);
1648	SSMR3GetU8(pSSM, &u.DevTmp.Int.s.u8MsiCapSize);
1649	SSMR3GetU8(pSSM, &u.DevTmp.Int.s.u8MsixCapOffset);
1650	rc = SSMR3GetU8(pSSM, &u.DevTmp.Int.s.u8MsixCapSize);
1651	AssertRCReturn(rc, rc);
1652
1653	/* Load MSI-X page state */
1654	uint32_t cbMsixState = u.DevTmp.Int.s.u8MsixCapOffset != 0 ? _4K : 0;
1655	if (uVersion >= VBOX_ICH9PCI_SAVED_STATE_VERSION_4KB_CFG_SPACE)
1656	{
1657	rc = SSMR3GetU32(pSSM, &cbMsixState);
1658	AssertRCReturn(rc, rc);
1659	}
1660	if (cbMsixState)
1661	{
1662	if ( cbMsixState > (uint32_t)(pDev ? pDev->cbMsixState : _32K + _16K)
1663	\|\| cbMsixState > sizeof(u) - RT_UOFFSETOF(PDMPCIDEV, abMsixState))
1664	return SSMR3SetLoadError(pSSM, VERR_SSM_DATA_UNIT_FORMAT_CHANGED, RT_SRC_POS,
1665	"cbMsixState=%#RX32, expected at most RT_MIN(%#x, %#zx)",
1666	cbMsixState, (pDev ? pDev->cbMsixState : _32K + _16K),
1667	sizeof(u) - RT_UOFFSETOF(PDMPCIDEV, abMsixState));
1668	rc = SSMR3GetMem(pSSM, u.DevTmp.abMsixState, cbMsixState);
1669	AssertRCReturn(rc, rc);
1670	}
1671
1672	/* Load the region types and sizes. */
1673	if (uVersion >= VBOX_ICH9PCI_SAVED_STATE_VERSION_REGION_SIZES)
1674	{
1675	for (uint32_t iRegion = 0; iRegion < VBOX_PCI_NUM_REGIONS; iRegion++)
1676	{
1677	SSMR3GetU8(pSSM, &u.DevTmp.Int.s.aIORegions[iRegion].type);
1678	rc = SSMR3GetU64(pSSM, &u.DevTmp.Int.s.aIORegions[iRegion].size);
1679	AssertLogRelRCReturn(rc, rc);
1680	}
1681	}
1682
1683	/*
1684	* Check that it's still around.
1685	*/
1686	pDev = pBus->apDevices[uDevFn];
1687	if (!pDev)
1688	{
1689	/* safe, only needs to go to the config space array */
1690	LogRel(("PCI: Device in slot %#x has been removed! vendor=%#06x device=%#06x\n", uDevFn,
1691	PDMPciDevGetVendorId(&u.DevTmp), PDMPciDevGetDeviceId(&u.DevTmp)));
1692	if (SSMR3HandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT)
1693	{
1694	/* safe, only needs to go to the config space array */
1695	rc = SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Device in slot %#x has been removed! vendor=%#06x device=%#06x"),
1696	uDevFn, PDMPciDevGetVendorId(&u.DevTmp), PDMPciDevGetDeviceId(&u.DevTmp));
1697	break;
1698	}
1699	continue;
1700	}
1701
1702	/* match the vendor id assuming that this will never be changed. */
1703	/* safe, only needs to go to the config space array */
1704	if (PDMPciDevGetVendorId(&u.DevTmp) != PDMPciDevGetVendorId(pDev))
1705	{
1706	/* safe, only needs to go to the config space array */
1707	rc = SSMR3SetCfgError(pSSM, RT_SRC_POS, N_("Device in slot %#x (%s) vendor id mismatch! saved=%.4Rhxs current=%.4Rhxs"),
1708	uDevFn, pDev->pszNameR3, PDMPciDevGetVendorId(&u.DevTmp), PDMPciDevGetVendorId(pDev));
1709	break;
1710	}
1711
1712	/* commit the loaded device config. */
1713	rc = devpciR3CommonRestoreRegions(pSSM, pDev, u.DevTmp.Int.s.aIORegions,
1714	uVersion >= VBOX_ICH9PCI_SAVED_STATE_VERSION_REGION_SIZES);
1715	if (RT_FAILURE(rc))
1716	break;
1717	Assert(!pciDevIsPassthrough(pDev));
1718	devpciR3CommonRestoreConfig(pDevIns, pDev, &u.DevTmp.abConfig[0]);
1719
1720	pDev->Int.s.uIrqPinState = u.DevTmp.Int.s.uIrqPinState;
1721	pDev->Int.s.u8MsiCapOffset = u.DevTmp.Int.s.u8MsiCapOffset;
1722	pDev->Int.s.u8MsiCapSize = u.DevTmp.Int.s.u8MsiCapSize;
1723	pDev->Int.s.u8MsixCapOffset = u.DevTmp.Int.s.u8MsixCapOffset;
1724	pDev->Int.s.u8MsixCapSize = u.DevTmp.Int.s.u8MsixCapSize;
1725	if (u.DevTmp.Int.s.u8MsixCapSize != 0) /** @todo r=bird: Why isn't this checkin u8MsixCapOffset??? */
1726	{
1727	Assert(pDev->Int.s.cbMsixRegion != 0);
1728	Assert(pDev->cbMsixState != 0);
1729	memcpy(pDev->abMsixState, u.DevTmp.abMsixState, RT_MIN(pDev->Int.s.cbMsixRegion, _32K + _16K));
1730	}
1731	}
1732
1733	return rc;
1734	}
1735
1736	static DECLCALLBACK(int) ich9pciR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1737	{
1738	PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
1739	PDEVPCIBUS pBus = &pThis->PciBus;
1740	uint32_t u32;
1741	int rc;
1742
1743	/* We ignore this version as there's no saved state with it anyway */
1744	if (uVersion <= VBOX_ICH9PCI_SAVED_STATE_VERSION_NOMSI)
1745	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1746	if (uVersion > VBOX_ICH9PCI_SAVED_STATE_VERSION)
1747	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1748
1749	/*
1750	* Bus state data.
1751	*/
1752	SSMR3GetU32(pSSM, &pThis->uConfigReg);
1753
1754	/*
1755	* Load IRQ states.
1756	*/
1757	for (unsigned i = 0; i < RT_ELEMENTS(pThis->auPciApicIrqLevels); i++)
1758	SSMR3GetU32V(pSSM, &pThis->auPciApicIrqLevels[i]);
1759
1760	/* separator */
1761	rc = SSMR3GetU32(pSSM, &u32);
1762	if (RT_FAILURE(rc))
1763	return rc;
1764	if (u32 != (uint32_t)~0)
1765	AssertMsgFailedReturn(("u32=%#x\n", u32), rc);
1766
1767	return ich9pciR3CommonLoadExec(pDevIns, pBus, pSSM, uVersion, uPass);
1768	}
1769
1770	static DECLCALLBACK(int) ich9pcibridgeR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1771	{
1772	PDEVPCIBUS pThis = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1773	return ich9pciR3CommonLoadExec(pDevIns, pThis, pSSM, uVersion, uPass);
1774	}
1775
1776
1777
1778	/* -=-=-=-=-=- Fake PCI BIOS Init -=-=-=-=-=- */
1779
1780
1781	void devpciR3BiosInitSetRegionAddress(PPDMDEVINS pDevIns, PDEVPCIBUS pBus, PPDMPCIDEV pPciDev, int iRegion, uint64_t addr)
1782	{
1783	NOREF(pBus);
1784	uint32_t uReg = devpciGetRegionReg(iRegion);
1785
1786	/* Read memory type first. */
1787	uint8_t uResourceType = devpciR3GetByte(pPciDev, uReg);
1788	bool f64Bit = (uResourceType & ((uint8_t)(PCI_ADDRESS_SPACE_BAR64 \| PCI_ADDRESS_SPACE_IO)))
1789	== PCI_ADDRESS_SPACE_BAR64;
1790
1791	Log(("Set region address: %02x:%02x.%d region %d address=%RX64%s\n",
1792	pBus->iBus, pPciDev->uDevFn >> 3, pPciDev->uDevFn & 7, iRegion, addr, f64Bit ? " (64-bit)" : ""));
1793
1794	/* Write address of the device. */
1795	devpciR3SetDWord(pDevIns, pPciDev, uReg, (uint32_t)addr);
1796	if (f64Bit)
1797	devpciR3SetDWord(pDevIns, pPciDev, uReg + 4, (uint32_t)(addr >> 32));
1798	}
1799
1800
1801	static void ich9pciBiosInitBridge(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus)
1802	{
1803	PPDMPCIDEV pBridge = pDevIns->apPciDevs[0];
1804	Log(("BIOS init bridge: %02x:%02x.%d\n", pBus->iBus, pBridge->uDevFn >> 3, pBridge->uDevFn & 7));
1805
1806	/*
1807	* The I/O range for the bridge must be aligned to a 4KB boundary.
1808	* This does not change anything really as the access to the device is not going
1809	* through the bridge but we want to be compliant to the spec.
1810	*/
1811	if ((pPciRoot->uPciBiosIo % _4K) != 0)
1812	{
1813	pPciRoot->uPciBiosIo = RT_ALIGN_32(pPciRoot->uPciBiosIo, _4K);
1814	LogFunc(("Aligned I/O start address. New address %#x\n", pPciRoot->uPciBiosIo));
1815	}
1816	devpciR3SetByte(pDevIns, pBridge, VBOX_PCI_IO_BASE, (pPciRoot->uPciBiosIo >> 8) & 0xf0);
1817
1818	/* The MMIO range for the bridge must be aligned to a 1MB boundary. */
1819	if ((pPciRoot->uPciBiosMmio % _1M) != 0)
1820	{
1821	pPciRoot->uPciBiosMmio = RT_ALIGN_32(pPciRoot->uPciBiosMmio, _1M);
1822	LogFunc(("Aligned MMIO start address. New address %#x\n", pPciRoot->uPciBiosMmio));
1823	}
1824	devpciR3SetWord(pDevIns, pBridge, VBOX_PCI_MEMORY_BASE, (pPciRoot->uPciBiosMmio >> 16) & UINT32_C(0xffff0));
1825
1826	/* Save values to compare later to. */
1827	uint32_t u32IoAddressBase = pPciRoot->uPciBiosIo;
1828	uint32_t u32MMIOAddressBase = pPciRoot->uPciBiosMmio;
1829
1830	/* Init all devices behind the bridge (recursing to further buses). */
1831	ich9pciBiosInitAllDevicesOnBus(pDevIns, pPciRoot, pBus);
1832
1833	/*
1834	* Set I/O limit register. If there is no device with I/O space behind the
1835	* bridge we set a lower value than in the base register.
1836	*/
1837	if (u32IoAddressBase != pPciRoot->uPciBiosIo)
1838	{
1839	/* Need again alignment to a 4KB boundary. */
1840	pPciRoot->uPciBiosIo = RT_ALIGN_32(pPciRoot->uPciBiosIo, _4K);
1841	devpciR3SetByte(pDevIns, pBridge, VBOX_PCI_IO_LIMIT, ((pPciRoot->uPciBiosIo - 1) >> 8) & 0xf0);
1842	}
1843	else
1844	{
1845	devpciR3SetByte(pDevIns, pBridge, VBOX_PCI_IO_BASE, 0xf0);
1846	devpciR3SetByte(pDevIns, pBridge, VBOX_PCI_IO_LIMIT, 0x00);
1847	}
1848
1849	/* Same with the MMIO limit register but with 1MB boundary here. */
1850	if (u32MMIOAddressBase != pPciRoot->uPciBiosMmio)
1851	{
1852	pPciRoot->uPciBiosMmio = RT_ALIGN_32(pPciRoot->uPciBiosMmio, _1M);
1853	devpciR3SetWord(pDevIns, pBridge, VBOX_PCI_MEMORY_LIMIT, ((pPciRoot->uPciBiosMmio - 1) >> 16) & UINT32_C(0xfff0));
1854	}
1855	else
1856	{
1857	devpciR3SetWord(pDevIns, pBridge, VBOX_PCI_MEMORY_BASE, 0xfff0);
1858	devpciR3SetWord(pDevIns, pBridge, VBOX_PCI_MEMORY_LIMIT, 0x0000);
1859	}
1860
1861	/*
1862	* Set the prefetch base and limit registers. We currently have no device with a prefetchable region
1863	* which may be behind a bridge. That's why it is unconditionally disabled here atm by writing a higher value into
1864	* the base register than in the limit register.
1865	*/
1866	devpciR3SetWord(pDevIns, pBridge, VBOX_PCI_PREF_MEMORY_BASE, 0xfff0);
1867	devpciR3SetWord(pDevIns, pBridge, VBOX_PCI_PREF_MEMORY_LIMIT, 0x0000);
1868	devpciR3SetDWord(pDevIns, pBridge, VBOX_PCI_PREF_BASE_UPPER32, 0x00000000);
1869	devpciR3SetDWord(pDevIns, pBridge, VBOX_PCI_PREF_LIMIT_UPPER32, 0x00000000);
1870	}
1871
1872	static int ich9pciBiosInitDeviceGetRegions(PPDMPCIDEV pPciDev)
1873	{
1874	uint8_t uHeaderType = devpciR3GetByte(pPciDev, VBOX_PCI_HEADER_TYPE) & 0x7f;
1875	if (uHeaderType == 0x00)
1876	/* Ignore ROM region here, which is included in VBOX_PCI_NUM_REGIONS. */
1877	return VBOX_PCI_NUM_REGIONS - 1;
1878	else if (uHeaderType == 0x01)
1879	/* PCI bridges have 2 BARs. */
1880	return 2;
1881	else
1882	{
1883	AssertMsgFailed(("invalid header type %#x\n", uHeaderType));
1884	return 0;
1885	}
1886	}
1887
1888	static void ich9pciBiosInitDeviceBARs(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus, PPDMPCIDEV pPciDev)
1889	{
1890	int cRegions = ich9pciBiosInitDeviceGetRegions(pPciDev);
1891	bool fSuppressMem = false;
1892	bool fActiveMemRegion = false;
1893	bool fActiveIORegion = false;
1894	for (int iRegion = 0; iRegion < cRegions; iRegion++)
1895	{
1896	uint32_t u32Address = devpciGetRegionReg(iRegion);
1897
1898	/* Calculate size - we write all 1s into the BAR, and then evaluate which bits
1899	are cleared. */
1900	uint8_t u8ResourceType = devpciR3GetByte(pPciDev, u32Address);
1901
1902	bool fPrefetch = (u8ResourceType & ((uint8_t)(PCI_ADDRESS_SPACE_MEM_PREFETCH \| PCI_ADDRESS_SPACE_IO)))
1903	== PCI_ADDRESS_SPACE_MEM_PREFETCH;
1904	bool f64Bit = (u8ResourceType & ((uint8_t)(PCI_ADDRESS_SPACE_BAR64 \| PCI_ADDRESS_SPACE_IO)))
1905	== PCI_ADDRESS_SPACE_BAR64;
1906	bool fIsPio = ((u8ResourceType & PCI_ADDRESS_SPACE_IO) == PCI_ADDRESS_SPACE_IO);
1907	uint64_t cbRegSize64 = 0;
1908
1909	/* Hack: initialize prefetchable BARs for devices on the root bus
1910	* early, but for all other prefetchable BARs do it after the
1911	* non-prefetchable BARs are initialized on all buses. */
1912	if (fPrefetch && pBus->iBus != 0)
1913	{
1914	fSuppressMem = true;
1915	if (f64Bit)
1916	iRegion++; /* skip next region */
1917	continue;
1918	}
1919
1920	if (f64Bit)
1921	{
1922	devpciR3SetDWord(pDevIns, pPciDev, u32Address, UINT32_C(0xffffffff));
1923	devpciR3SetDWord(pDevIns, pPciDev, u32Address+4, UINT32_C(0xffffffff));
1924	cbRegSize64 = RT_MAKE_U64(devpciR3GetDWord(pPciDev, u32Address),
1925	devpciR3GetDWord(pPciDev, u32Address+4));
1926	cbRegSize64 &= ~UINT64_C(0x0f);
1927	cbRegSize64 = (~cbRegSize64) + 1;
1928
1929	/* No 64-bit PIO regions possible. */
1930	#ifndef DEBUG_bird /* EFI triggers this for DevAHCI. */
1931	AssertMsg((u8ResourceType & PCI_ADDRESS_SPACE_IO) == 0, ("type=%#x rgn=%d\n", u8ResourceType, iRegion));
1932	#endif
1933	}
1934	else
1935	{
1936	uint32_t cbRegSize32;
1937	devpciR3SetDWord(pDevIns, pPciDev, u32Address, UINT32_C(0xffffffff));
1938	cbRegSize32 = devpciR3GetDWord(pPciDev, u32Address);
1939
1940	/* Clear resource information depending on resource type. */
1941	if (fIsPio) /* PIO */
1942	cbRegSize32 &= ~UINT32_C(0x01);
1943	else /* MMIO */
1944	cbRegSize32 &= ~UINT32_C(0x0f);
1945
1946	/*
1947	* Invert all bits and add 1 to get size of the region.
1948	* (From PCI implementation note)
1949	*/
1950	if (fIsPio && (cbRegSize32 & UINT32_C(0xffff0000)) == 0)
1951	cbRegSize32 = (~(cbRegSize32 \| UINT32_C(0xffff0000))) + 1;
1952	else
1953	cbRegSize32 = (~cbRegSize32) + 1;
1954
1955	cbRegSize64 = cbRegSize32;
1956	}
1957	Log2Func(("Size of region %u for device %d on bus %d is %lld\n", iRegion, pPciDev->uDevFn, pBus->iBus, cbRegSize64));
1958
1959	if (cbRegSize64)
1960	{
1961	/* Try 32-bit base first. */
1962	uint32_t* paddr = fIsPio ? &pPciRoot->uPciBiosIo : &pPciRoot->uPciBiosMmio;
1963	uint64_t uNew = *paddr;
1964	/* Align starting address to region size. */
1965	uNew = (uNew + cbRegSize64 - 1) & ~(cbRegSize64 - 1);
1966	if (fIsPio)
1967	uNew &= UINT32_C(0xffff);
1968	/* Unconditionally exclude I/O-APIC/HPET/ROM. Pessimistic, but better than causing a mess. */
1969	if ( !uNew
1970	\|\| (uNew <= UINT32_C(0xffffffff) && uNew + cbRegSize64 - 1 >= UINT32_C(0xfec00000))
1971	\|\| uNew >= _4G)
1972	{
1973	/* Only prefetchable regions can be placed above 4GB, as the
1974	* address decoder for non-prefetchable addresses in bridges
1975	* is limited to 32 bits. */
1976	if (f64Bit && fPrefetch)
1977	{
1978	/* Map a 64-bit region above 4GB. */
1979	Assert(!fIsPio);
1980	uNew = pPciRoot->uPciBiosMmio64;
1981	/* Align starting address to region size. */
1982	uNew = (uNew + cbRegSize64 - 1) & ~(cbRegSize64 - 1);
1983	LogFunc(("Start address of 64-bit MMIO region %u/%u is %#llx\n", iRegion, iRegion + 1, uNew));
1984	devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, iRegion, uNew);
1985	fActiveMemRegion = true;
1986	pPciRoot->uPciBiosMmio64 = uNew + cbRegSize64;
1987	Log2Func(("New 64-bit address is %#llx\n", pPciRoot->uPciBiosMmio64));
1988	}
1989	else
1990	{
1991	uint16_t uVendor = devpciR3GetWord(pPciDev, VBOX_PCI_VENDOR_ID);
1992	uint16_t uDevice = devpciR3GetWord(pPciDev, VBOX_PCI_DEVICE_ID);
1993	LogRel(("PCI: no space left for BAR%u of device %u/%u/%u (vendor=%#06x device=%#06x)\n",
1994	iRegion, pBus->iBus, pPciDev->uDevFn >> 3, pPciDev->uDevFn & 7, uVendor, uDevice)); /** @todo make this a VM start failure later. */
1995	/* Undo the mapping mess caused by the size probing. */
1996	devpciR3SetDWord(pDevIns, pPciDev, u32Address, UINT32_C(0));
1997	}
1998	}
1999	else
2000	{
2001	LogFunc(("Start address of %s region %u is %#x\n", (fIsPio ? "I/O" : "MMIO"), iRegion, uNew));
2002	devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, iRegion, uNew);
2003	if (fIsPio)
2004	fActiveIORegion = true;
2005	else
2006	fActiveMemRegion = true;
2007	*paddr = uNew + cbRegSize64;
2008	Log2Func(("New 32-bit address is %#x\n", *paddr));
2009	}
2010
2011	if (f64Bit)
2012	iRegion++; /* skip next region */
2013	}
2014	}
2015
2016	/* Update the command word appropriately. */
2017	uint16_t uCmd = devpciR3GetWord(pPciDev, VBOX_PCI_COMMAND);
2018	if (fActiveMemRegion && !fSuppressMem)
2019	uCmd \|= VBOX_PCI_COMMAND_MEMORY; /* Enable MMIO access. */
2020	if (fActiveIORegion)
2021	uCmd \|= VBOX_PCI_COMMAND_IO; /* Enable I/O space access. */
2022	devpciR3SetWord(pDevIns, pPciDev, VBOX_PCI_COMMAND, uCmd);
2023	}
2024
2025	static bool ich9pciBiosInitDevicePrefetchableBARs(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus, PPDMPCIDEV pPciDev, bool fUse64Bit, bool fDryrun)
2026	{
2027	int cRegions = ich9pciBiosInitDeviceGetRegions(pPciDev);
2028	bool fActiveMemRegion = false;
2029	for (int iRegion = 0; iRegion < cRegions; iRegion++)
2030	{
2031	uint32_t u32Address = devpciGetRegionReg(iRegion);
2032	uint8_t u8ResourceType = devpciR3GetByte(pPciDev, u32Address);
2033	bool fPrefetch = (u8ResourceType & ((uint8_t)(PCI_ADDRESS_SPACE_MEM_PREFETCH \| PCI_ADDRESS_SPACE_IO)))
2034	== PCI_ADDRESS_SPACE_MEM_PREFETCH;
2035	bool f64Bit = (u8ResourceType & ((uint8_t)(PCI_ADDRESS_SPACE_BAR64 \| PCI_ADDRESS_SPACE_IO)))
2036	== PCI_ADDRESS_SPACE_BAR64;
2037	uint64_t cbRegSize64 = 0;
2038
2039	/* Everything besides prefetchable regions has been set up already. */
2040	if (!fPrefetch)
2041	continue;
2042
2043	if (f64Bit)
2044	{
2045	devpciR3SetDWord(pDevIns, pPciDev, u32Address, UINT32_C(0xffffffff));
2046	devpciR3SetDWord(pDevIns, pPciDev, u32Address+4, UINT32_C(0xffffffff));
2047	cbRegSize64 = RT_MAKE_U64(devpciR3GetDWord(pPciDev, u32Address),
2048	devpciR3GetDWord(pPciDev, u32Address+4));
2049	cbRegSize64 &= ~UINT64_C(0x0f);
2050	cbRegSize64 = (~cbRegSize64) + 1;
2051	}
2052	else
2053	{
2054	uint32_t cbRegSize32;
2055	devpciR3SetDWord(pDevIns, pPciDev, u32Address, UINT32_C(0xffffffff));
2056	cbRegSize32 = devpciR3GetDWord(pPciDev, u32Address);
2057	cbRegSize32 &= ~UINT32_C(0x0f);
2058	cbRegSize32 = (~cbRegSize32) + 1;
2059
2060	cbRegSize64 = cbRegSize32;
2061	}
2062	Log2Func(("Size of region %u for device %d on bus %d is %lld\n", iRegion, pPciDev->uDevFn, pBus->iBus, cbRegSize64));
2063
2064	if (cbRegSize64)
2065	{
2066	uint64_t uNew;
2067	if (!fUse64Bit)
2068	{
2069	uNew = pPciRoot->uPciBiosMmio;
2070	/* Align starting address to region size. */
2071	uNew = (uNew + cbRegSize64 - 1) & ~(cbRegSize64 - 1);
2072	/* Unconditionally exclude I/O-APIC/HPET/ROM. Pessimistic, but better than causing a mess. Okay for BIOS. */
2073	if ( !uNew
2074	\|\| (uNew <= UINT32_C(0xffffffff) && uNew + cbRegSize64 - 1 >= UINT32_C(0xfec00000))
2075	\|\| uNew >= _4G)
2076	{
2077	Log2Func(("region #%u: Rejecting address range: %#x LB %#RX64\n", iRegion, uNew, cbRegSize64));
2078	Assert(fDryrun);
2079	return true;
2080	}
2081	if (!fDryrun)
2082	{
2083	LogFunc(("Start address of MMIO region %u is %#x\n", iRegion, uNew));
2084	devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, iRegion, uNew);
2085	fActiveMemRegion = true;
2086	}
2087	pPciRoot->uPciBiosMmio = uNew + cbRegSize64;
2088	}
2089	else
2090	{
2091	/* Can't handle 32-bit BARs when forcing 64-bit allocs. */
2092	if (!f64Bit)
2093	{
2094	Assert(fDryrun);
2095	return true;
2096	}
2097	uNew = pPciRoot->uPciBiosMmio64;
2098	/* Align starting address to region size. */
2099	uNew = (uNew + cbRegSize64 - 1) & ~(cbRegSize64 - 1);
2100	pPciRoot->uPciBiosMmio64 = uNew + cbRegSize64;
2101	if (!fDryrun)
2102	{
2103	LogFunc(("Start address of 64-bit MMIO region %u/%u is %#llx\n", iRegion, iRegion + 1, uNew));
2104	devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, iRegion, uNew);
2105	fActiveMemRegion = true;
2106	}
2107	}
2108
2109	if (f64Bit)
2110	iRegion++; /* skip next region */
2111	}
2112	}
2113
2114	if (!fDryrun)
2115	{
2116	/* Update the command word appropriately. */
2117	uint16_t uCmd = devpciR3GetWord(pPciDev, VBOX_PCI_COMMAND);
2118	if (fActiveMemRegion)
2119	uCmd \|= VBOX_PCI_COMMAND_MEMORY; /* Enable MMIO access. */
2120	devpciR3SetWord(pDevIns, pPciDev, VBOX_PCI_COMMAND, uCmd);
2121	}
2122	else
2123	Assert(!fActiveMemRegion);
2124
2125	return false;
2126	}
2127
2128	static bool ich9pciBiosInitBridgePrefetchable(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus, bool fUse64Bit, bool fDryrun)
2129	{
2130	PPDMPCIDEV pBridge = pDevIns->apPciDevs[0];
2131	Log(("BIOS init bridge (prefetch): %02x:%02x.%d use64bit=%d dryrun=%d\n", pBus->iBus, pBridge->uDevFn >> 3, pBridge->uDevFn & 7, fUse64Bit, fDryrun));
2132
2133	pPciRoot->uPciBiosMmio = RT_ALIGN_32(pPciRoot->uPciBiosMmio, _1M);
2134	pPciRoot->uPciBiosMmio64 = RT_ALIGN_64(pPciRoot->uPciBiosMmio64, _1M);
2135
2136	/* Save values to compare later to. */
2137	uint32_t u32MMIOAddressBase = pPciRoot->uPciBiosMmio;
2138	uint64_t u64MMIOAddressBase = pPciRoot->uPciBiosMmio64;
2139
2140	/* Init all devices behind the bridge (recursing to further buses). */
2141	bool fRes = ich9pciBiosInitAllDevicesPrefetchableOnBus(pDevIns, pPciRoot, pBus, fUse64Bit, fDryrun);
2142	if (fDryrun)
2143	return fRes;
2144	Assert(!fRes);
2145
2146	/* Set prefetchable MMIO limit register with 1MB boundary. */
2147	uint64_t uBase, uLimit;
2148	if (fUse64Bit)
2149	{
2150	if (u64MMIOAddressBase == pPciRoot->uPciBiosMmio64)
2151	return false;
2152	uBase = u64MMIOAddressBase;
2153	uLimit = RT_ALIGN_64(pPciRoot->uPciBiosMmio64, _1M) - 1;
2154	}
2155	else
2156	{
2157	if (u32MMIOAddressBase == pPciRoot->uPciBiosMmio)
2158	return false;
2159	uBase = u32MMIOAddressBase;
2160	uLimit = RT_ALIGN_32(pPciRoot->uPciBiosMmio, _1M) - 1;
2161	}
2162	devpciR3SetDWord(pDevIns, pBridge, VBOX_PCI_PREF_BASE_UPPER32, uBase >> 32);
2163	devpciR3SetWord(pDevIns, pBridge, VBOX_PCI_PREF_MEMORY_BASE, (uint32_t)(uBase >> 16) & UINT32_C(0xfff0));
2164	devpciR3SetDWord(pDevIns, pBridge, VBOX_PCI_PREF_LIMIT_UPPER32, uLimit >> 32);
2165	devpciR3SetWord(pDevIns, pBridge, VBOX_PCI_PREF_MEMORY_LIMIT, (uint32_t)(uLimit >> 16) & UINT32_C(0xfff0));
2166
2167	return false;
2168	}
2169
2170	static bool ich9pciBiosInitAllDevicesPrefetchableOnBus(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus,
2171	bool fUse64Bit, bool fDryrun)
2172	{
2173	/* First pass: assign resources to all devices. */
2174	for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
2175	{
2176	PPDMPCIDEV pPciDev = pBus->apDevices[uDevFn];
2177
2178	/* check if device is present */
2179	if (!pPciDev)
2180	continue;
2181
2182	Log(("BIOS init device (prefetch): %02x:%02x.%d\n", pBus->iBus, uDevFn >> 3, uDevFn & 7));
2183
2184	/* prefetchable memory mappings */
2185	bool fRes = ich9pciBiosInitDevicePrefetchableBARs(pDevIns, pPciRoot, pBus, pPciDev, fUse64Bit, fDryrun);
2186	if (fRes)
2187	{
2188	Assert(fDryrun);
2189	return fRes;
2190	}
2191	}
2192
2193	/* Second pass: handle bridges recursively. */
2194	for (uint32_t iBridge = 0; iBridge < pBus->cBridges; iBridge++)
2195	{
2196	PPDMPCIDEV pBridge = pBus->papBridgesR3[iBridge];
2197	AssertMsg(pBridge && pciDevIsPci2PciBridge(pBridge),
2198	("Device is not a PCI bridge but on the list of PCI bridges\n"));
2199	PDEVPCIBUS pChildBus = PDMINS_2_DATA(pBridge->Int.s.CTX_SUFF(pDevIns), PDEVPCIBUS);
2200
2201	bool fRes = ich9pciBiosInitBridgePrefetchable(pDevIns, pPciRoot, pChildBus, fUse64Bit, fDryrun);
2202	if (fRes)
2203	{
2204	Assert(fDryrun);
2205	return fRes;
2206	}
2207	}
2208	return false;
2209	}
2210
2211	static void ich9pciBiosInitAllDevicesOnBus(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus)
2212	{
2213	PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
2214
2215	/* First pass: assign resources to all devices and map the interrupt. */
2216	for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
2217	{
2218	PPDMPCIDEV pPciDev = pBus->apDevices[uDevFn];
2219
2220	/* check if device is present */
2221	if (!pPciDev)
2222	continue;
2223
2224	Log(("BIOS init device: %02x:%02x.%d\n", pBus->iBus, uDevFn >> 3, uDevFn & 7));
2225
2226	/* default memory mappings */
2227	ich9pciBiosInitDeviceBARs(pDevIns, pPciRoot, pBus, pPciDev);
2228	uint16_t uDevClass = devpciR3GetWord(pPciDev, VBOX_PCI_CLASS_DEVICE);
2229	switch (uDevClass)
2230	{
2231	case 0x0101:
2232	/* IDE controller */
2233	devpciR3SetWord(pDevIns, pPciDev, 0x40, 0x8000); /* enable IDE0 */
2234	devpciR3SetWord(pDevIns, pPciDev, 0x42, 0x8000); /* enable IDE1 */
2235	break;
2236	case 0x0300:
2237	{
2238	/* VGA controller */
2239
2240	/* NB: Default Bochs VGA LFB address is 0xE0000000. Old guest
2241	* software may break if the framebuffer isn't mapped there.
2242	*/
2243
2244	/*
2245	* Legacy VGA I/O ports are implicitly decoded by a VGA class device. But
2246	* only the framebuffer (i.e., a memory region) is explicitly registered via
2247	* ich9pciSetRegionAddress, so don't forget to enable I/O decoding.
2248	*/
2249	uint16_t uCmd = devpciR3GetWord(pPciDev, VBOX_PCI_COMMAND);
2250	devpciR3SetWord(pDevIns, pPciDev, VBOX_PCI_COMMAND, uCmd \| VBOX_PCI_COMMAND_IO);
2251	break;
2252	}
2253	#ifdef VBOX_WITH_IOMMU_AMD
2254	case 0x0806:
2255	{
2256	/* IOMMU. */
2257	uint16_t const uVendorId = devpciR3GetWord(pPciDev, VBOX_PCI_VENDOR_ID);
2258	if (uVendorId == IOMMU_PCI_VENDOR_ID)
2259	{
2260	/* AMD. */
2261	devpciR3SetDWord(pDevIns, pPciDev, IOMMU_PCI_OFF_BASE_ADDR_REG_LO,
2262	IOMMU_MMIO_BASE_ADDR \| RT_BIT(0)); /* enable base address (bit 0). */
2263	}
2264	break;
2265	}
2266	#endif
2267	default:
2268	break;
2269	}
2270
2271	/* map the interrupt */
2272	uint8_t iPin = devpciR3GetByte(pPciDev, VBOX_PCI_INTERRUPT_PIN);
2273	if (iPin != 0)
2274	{
2275	iPin--;
2276
2277	/* We need to go up to the host bus to see which irq pin this
2278	device will use there. See logic in ich9pcibridgeSetIrq(). */
2279	uint32_t idxPdmParentBus;
2280	PPDMDEVINS pDevInsParent = pDevIns;
2281	while ((idxPdmParentBus = pDevInsParent->apPciDevs[0]->Int.s.idxPdmBus) != 0)
2282	{
2283	/* Get the pin the device would assert on the bridge. */
2284	iPin = ((pDevInsParent->apPciDevs[0]->uDevFn >> 3) + iPin) & 3;
2285
2286	pDevInsParent = pBusCC->pPciHlpR3->pfnGetBusByNo(pDevIns, idxPdmParentBus);
2287	AssertLogRelBreak(pDevInsParent);
2288	}
2289
2290	int iIrq = aPciIrqs[ich9pciSlotGetPirq(pBus->iBus, uDevFn, iPin)];
2291	Log(("Using pin %d and IRQ %d for device %02x:%02x.%d\n",
2292	iPin, iIrq, pBus->iBus, uDevFn>>3, uDevFn&7));
2293	devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_INTERRUPT_LINE, iIrq);
2294	}
2295	}
2296
2297	/* Second pass: handle bridges recursively. */
2298	for (uint32_t iBridge = 0; iBridge < pBus->cBridges; iBridge++)
2299	{
2300	PPDMPCIDEV pBridge = pBus->papBridgesR3[iBridge];
2301	AssertMsg(pBridge && pciDevIsPci2PciBridge(pBridge),
2302	("Device is not a PCI bridge but on the list of PCI bridges\n"));
2303	PDEVPCIBUS pChildBus = PDMINS_2_DATA(pBridge->Int.s.CTX_SUFF(pDevIns), PDEVPCIBUS);
2304
2305	ich9pciBiosInitBridge(pDevIns, pPciRoot, pChildBus);
2306	}
2307
2308	/* Third pass (only for bus 0): set up prefetchable BARs recursively. */
2309	if (pBus->iBus == 0)
2310	{
2311	for (uint32_t iBridge = 0; iBridge < pBus->cBridges; iBridge++)
2312	{
2313	PPDMPCIDEV pBridge = pBus->papBridgesR3[iBridge];
2314	AssertMsg(pBridge && pciDevIsPci2PciBridge(pBridge),
2315	("Device is not a PCI bridge but on the list of PCI bridges\n"));
2316	PDEVPCIBUS pChildBus = PDMINS_2_DATA(pBridge->Int.s.CTX_SUFF(pDevIns), PDEVPCIBUS);
2317
2318	Log(("BIOS init prefetchable memory behind bridge: %02x:%02x.%d\n", pChildBus->iBus, pBridge->uDevFn >> 3, pBridge->uDevFn & 7));
2319	/* Save values for the prefetchable dryruns. */
2320	uint32_t u32MMIOAddressBase = pPciRoot->uPciBiosMmio;
2321	uint64_t u64MMIOAddressBase = pPciRoot->uPciBiosMmio64;
2322
2323	bool fProbe = ich9pciBiosInitBridgePrefetchable(pDevIns, pPciRoot, pChildBus, false /* fUse64Bit /, true / fDryrun */);
2324	pPciRoot->uPciBiosMmio = u32MMIOAddressBase;
2325	pPciRoot->uPciBiosMmio64 = u64MMIOAddressBase;
2326	if (fProbe)
2327	{
2328	fProbe = ich9pciBiosInitBridgePrefetchable(pDevIns, pPciRoot, pChildBus, true /* fUse64Bit /, true / fDryrun */);
2329	pPciRoot->uPciBiosMmio = u32MMIOAddressBase;
2330	pPciRoot->uPciBiosMmio64 = u64MMIOAddressBase;
2331	if (fProbe)
2332	LogRel(("PCI: unresolvable prefetchable memory behind bridge %02x:%02x.%d\n", pChildBus->iBus, pBridge->uDevFn >> 3, pBridge->uDevFn & 7));
2333	else
2334	ich9pciBiosInitBridgePrefetchable(pDevIns, pPciRoot, pChildBus, true /* fUse64Bit /, false / fDryrun */);
2335	}
2336	else
2337	ich9pciBiosInitBridgePrefetchable(pDevIns, pPciRoot, pChildBus, false /* fUse64Bit /, false / fDryrun */);
2338	}
2339	}
2340	}
2341
2342	/**
2343	* Initializes bridges registers used for routing.
2344	*
2345	* We ASSUME PDM bus assignments are the same as the PCI bus assignments and
2346	* will complain if we find any conflicts. This because it is just soo much
2347	* simpler to have the two numbers match one another by default.
2348	*
2349	* @returns Max subordinate bus number.
2350	* @param pDevIns The device instance of the bus.
2351	* @param pPciRoot Global device instance data used to generate unique bus numbers.
2352	* @param pBus The PCI bus to initialize.
2353	* @param pbmUsed Pointer to a 32-bit bitmap tracking which device
2354	* (ranges) has been used.
2355	* @param uBusPrimary The primary bus number the bus is connected to.
2356	*/
2357	static uint8_t ich9pciBiosInitBridgeTopology(PPDMDEVINS pDevIns, PDEVPCIROOT pPciRoot, PDEVPCIBUS pBus,
2358	uint32_t *pbmUsed, uint8_t uBusPrimary)
2359	{
2360	PPDMPCIDEV pBridgeDev = pDevIns->apPciDevs[0];
2361
2362	/* Check if the PDM bus assignment makes sense. */
2363	AssertLogRelMsg(!(*pbmUsed & RT_BIT_32(pBus->iBus)),
2364	("PCIBIOS: Bad PCI bridge config! Conflict for bus %#x. Make sure to instantiate bridges for a sub-trees in sequence!\n",
2365	pBus->iBus));
2366	*pbmUsed \|= RT_BIT_32(pBus->iBus);
2367
2368	/* Set only if we are not on the root bus, it has no primary bus attached. */
2369	if (pBus->iBus != 0)
2370	{
2371	devpciR3SetByte(pDevIns, pBridgeDev, VBOX_PCI_PRIMARY_BUS, uBusPrimary);
2372	devpciR3SetByte(pDevIns, pBridgeDev, VBOX_PCI_SECONDARY_BUS, pBus->iBus);
2373	/* Since the subordinate bus value can only be finalized once we
2374	* finished recursing through everything behind the bridge, the only
2375	* solution is temporarily configuring the subordinate to the maximum
2376	* possible value. This makes sure that the config space accesses work
2377	* (for our own sloppy emulation it apparently doesn't matter, but
2378	* this is vital for real PCI bridges/devices in passthrough mode). */
2379	devpciR3SetByte(pDevIns, pBridgeDev, VBOX_PCI_SUBORDINATE_BUS, 0xff);
2380	}
2381
2382	uint8_t uMaxSubNum = pBus->iBus;
2383	for (uint32_t iBridge = 0; iBridge < pBus->cBridges; iBridge++)
2384	{
2385	PPDMPCIDEV pBridge = pBus->papBridgesR3[iBridge];
2386	AssertMsg(pBridge && pciDevIsPci2PciBridge(pBridge),
2387	("Device is not a PCI bridge but on the list of PCI bridges\n"));
2388	PDEVPCIBUS pChildBus = PDMINS_2_DATA(pBridge->Int.s.CTX_SUFF(pDevIns), PDEVPCIBUS);
2389	uint8_t uMaxChildSubBus = ich9pciBiosInitBridgeTopology(pDevIns, pPciRoot, pChildBus, pbmUsed, pBus->iBus);
2390	uMaxSubNum = RT_MAX(uMaxSubNum, uMaxChildSubBus);
2391	}
2392
2393	if (pBus->iBus != 0)
2394	devpciR3SetByte(pDevIns, pBridgeDev, VBOX_PCI_SUBORDINATE_BUS, uMaxSubNum);
2395	for (uint32_t i = pBus->iBus; i <= uMaxSubNum; i++)
2396	*pbmUsed \|= RT_BIT_32(i);
2397
2398	/* Make sure that transactions are able to get through the bridge. Not
2399	* strictly speaking necessary this early (before any device is set up),
2400	* but on the other hand it can't hurt either. */
2401	if (pBus->iBus != 0)
2402	devpciR3SetWord(pDevIns, pBridgeDev, VBOX_PCI_COMMAND,
2403	VBOX_PCI_COMMAND_IO
2404	\| VBOX_PCI_COMMAND_MEMORY
2405	\| VBOX_PCI_COMMAND_MASTER);
2406
2407	/* safe, only needs to go to the config space array */
2408	Log2Func(("for bus %p: primary=%d secondary=%d subordinate=%d\n", pBus,
2409	PDMPciDevGetByte(pBridgeDev, VBOX_PCI_PRIMARY_BUS),
2410	PDMPciDevGetByte(pBridgeDev, VBOX_PCI_SECONDARY_BUS),
2411	PDMPciDevGetByte(pBridgeDev, VBOX_PCI_SUBORDINATE_BUS) ));
2412
2413	return uMaxSubNum;
2414	}
2415
2416
2417	/**
2418	* Worker for Fake PCI BIOS config
2419	*
2420	* @returns VBox status code.
2421	*
2422	* @param pDevIns ICH9 device instance.
2423	*/
2424	static int ich9pciFakePCIBIOS(PPDMDEVINS pDevIns)
2425	{
2426	PDEVPCIROOT pPciRoot = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
2427	PVM pVM = PDMDevHlpGetVM(pDevIns);
2428	uint32_t const cbBelow4GB = MMR3PhysGetRamSizeBelow4GB(pVM);
2429	uint64_t const cbAbove4GB = MMR3PhysGetRamSizeAbove4GB(pVM);
2430
2431	LogRel(("PCI: setting up topology, resources and interrupts\n"));
2432
2433	/** @todo r=klaus this needs to do the same elcr magic as DevPCI.cpp, as the BIOS can't be trusted to do the right thing. Of course it's more difficult than with the old code, as there are bridges to be handled. The interrupt routing needs to be taken into account. Also I highly suspect that the chipset has 8 interrupt lines which we might be able to use for handling things on the root bus better (by treating them as devices on the mainboard). */
2434
2435	/*
2436	* Set the start addresses.
2437	*/
2438	pPciRoot->uPciBiosBus = 0;
2439	pPciRoot->uPciBiosIo = 0xd000;
2440	pPciRoot->uPciBiosMmio = cbBelow4GB;
2441	pPciRoot->uPciBiosMmio64 = cbAbove4GB + _4G;
2442
2443	/* NB: Assume that if PCI controller MMIO range is enabled, it is below the beginning of the memory hole. */
2444	if (pPciRoot->u64PciConfigMMioAddress)
2445	{
2446	AssertRelease(pPciRoot->u64PciConfigMMioAddress >= cbBelow4GB);
2447	pPciRoot->uPciBiosMmio = pPciRoot->u64PciConfigMMioAddress + pPciRoot->u64PciConfigMMioLength;
2448	}
2449	Log(("cbBelow4GB: %#RX32, uPciBiosMmio: %#RX64, cbAbove4GB: %#RX64, uPciBiosMmio64=%#RX64\n",
2450	cbBelow4GB, pPciRoot->uPciBiosMmio, cbAbove4GB, pPciRoot->uPciBiosMmio64));
2451
2452	/*
2453	* Assign bridge topology, for further routing to work.
2454	*/
2455	PDEVPCIBUS pBus = &pPciRoot->PciBus;
2456	AssertLogRel(pBus->iBus == 0);
2457	uint32_t bmUsed = 0;
2458	ich9pciBiosInitBridgeTopology(pDevIns, pPciRoot, pBus, &bmUsed, 0);
2459
2460	/*
2461	* Init all devices on bus 0 (recursing to further buses).
2462	*/
2463	ich9pciBiosInitAllDevicesOnBus(pDevIns, pPciRoot, pBus);
2464
2465	return VINF_SUCCESS;
2466	}
2467
2468
2469	/* -=-=-=-=-=- PCI Config Space -=-=-=-=-=- */
2470
2471
2472	/**
2473	* Reads config space for a device, ignoring interceptors.
2474	*/
2475	DECLHIDDEN(VBOXSTRICTRC) devpciR3CommonConfigReadWorker(PPDMPCIDEV pPciDev, uint32_t uAddress, unsigned cb, uint32_t *pu32Value)
2476	{
2477	uint32_t uValue;
2478	if (uAddress + cb <= RT_MIN(pPciDev->cbConfig, sizeof(pPciDev->abConfig)))
2479	{
2480	switch (cb)
2481	{
2482	case 1:
2483	/* safe, only needs to go to the config space array */
2484	uValue = PDMPciDevGetByte(pPciDev, uAddress);
2485	break;
2486	case 2:
2487	/* safe, only needs to go to the config space array */
2488	uValue = PDMPciDevGetWord(pPciDev, uAddress);
2489	break;
2490	case 4:
2491	/* safe, only needs to go to the config space array */
2492	uValue = PDMPciDevGetDWord(pPciDev, uAddress);
2493	break;
2494	default:
2495	AssertFailed();
2496	uValue = 0;
2497	break;
2498	}
2499
2500	#ifdef LOG_ENABLED
2501	if ( pciDevIsMsiCapable(pPciDev)
2502	&& uAddress - (uint32_t)pPciDev->Int.s.u8MsiCapOffset < (uint32_t)pPciDev->Int.s.u8MsiCapSize )
2503	Log2Func(("MSI CAP: %#x LB %u -> %#x\n", uAddress - (uint32_t)pPciDev->Int.s.u8MsiCapOffset, cb, uValue));
2504	else if ( pciDevIsMsixCapable(pPciDev)
2505	&& uAddress - (uint32_t)pPciDev->Int.s.u8MsixCapOffset < (uint32_t)pPciDev->Int.s.u8MsixCapSize)
2506	Log2Func(("MSI-X CAP: %#x LB %u -> %#x\n", uAddress - (uint32_t)pPciDev->Int.s.u8MsiCapOffset, cb, uValue));
2507	#endif
2508	}
2509	else
2510	{
2511	AssertMsgFailed(("Read after end of PCI config space: %#x LB %u\n", uAddress, cb));
2512	uValue = 0;
2513	}
2514
2515	*pu32Value = uValue;
2516	return VINF_SUCCESS;
2517	}
2518
2519
2520	/**
2521	* @interface_method_impl{PDMPCIBUSREGR3,pfnConfigRead}
2522	*/
2523	DECLCALLBACK(VBOXSTRICTRC) devpciR3CommonConfigRead(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev,
2524	uint32_t uAddress, unsigned cb, uint32_t *pu32Value)
2525	{
2526	RT_NOREF(pDevIns);
2527	return devpciR3CommonConfigReadWorker(pPciDev, uAddress, cb, pu32Value);
2528	}
2529
2530
2531	/**
2532	* Worker for devpciR3ResetDevice and devpciR3UpdateMappings that unmaps a region.
2533	*
2534	* @returns VBox status code.
2535	* @param pDev The PCI device.
2536	* @param iRegion The region to unmap.
2537	*/
2538	static int devpciR3UnmapRegion(PPDMPCIDEV pDev, int iRegion)
2539	{
2540	PPCIIOREGION pRegion = &pDev->Int.s.aIORegions[iRegion];
2541	AssertReturn(pRegion->size != 0, VINF_SUCCESS);
2542
2543	int rc = VINF_SUCCESS;
2544	if (pRegion->addr != INVALID_PCI_ADDRESS)
2545	{
2546	/*
2547	* Do callout first (optional), then do the unmapping via handle if we've been handed one.
2548	*/
2549	if (pRegion->pfnMap)
2550	{
2551	rc = pRegion->pfnMap(pDev->Int.s.pDevInsR3, pDev, iRegion,
2552	NIL_RTGCPHYS, pRegion->size, (PCIADDRESSSPACE)(pRegion->type));
2553	AssertRC(rc);
2554	}
2555
2556	switch (pRegion->fFlags & PDMPCIDEV_IORGN_F_HANDLE_MASK)
2557	{
2558	case PDMPCIDEV_IORGN_F_IOPORT_HANDLE:
2559	rc = PDMDevHlpIoPortUnmap(pDev->Int.s.pDevInsR3, (IOMIOPORTHANDLE)pRegion->hHandle);
2560	AssertRC(rc);
2561	break;
2562
2563	case PDMPCIDEV_IORGN_F_MMIO_HANDLE:
2564	rc = PDMDevHlpMmioUnmap(pDev->Int.s.pDevInsR3, (IOMMMIOHANDLE)pRegion->hHandle);
2565	AssertRC(rc);
2566	break;
2567
2568	case PDMPCIDEV_IORGN_F_MMIO2_HANDLE:
2569	rc = PDMDevHlpMmio2Unmap(pDev->Int.s.pDevInsR3, (PGMMMIO2HANDLE)pRegion->hHandle);
2570	AssertRC(rc);
2571	break;
2572
2573	case PDMPCIDEV_IORGN_F_NO_HANDLE:
2574	Assert(pRegion->fFlags & PDMPCIDEV_IORGN_F_NEW_STYLE);
2575	Assert(pRegion->hHandle == UINT64_MAX);
2576	break;
2577
2578	default:
2579	AssertLogRelFailed();
2580	}
2581	pRegion->addr = INVALID_PCI_ADDRESS;
2582	}
2583	return rc;
2584	}
2585
2586
2587	/**
2588	* Worker for devpciR3CommonDefaultConfigWrite that updates BAR and ROM mappings.
2589	*
2590	* @returns VINF_SUCCESS of DBGFSTOP result.
2591	* @param pPciDev The PCI device to update the mappings for.
2592	* @param fP2PBridge Whether this is a PCI to PCI bridge or not.
2593	*/
2594	static VBOXSTRICTRC devpciR3UpdateMappings(PPDMPCIDEV pPciDev, bool fP2PBridge)
2595	{
2596	/* safe, only needs to go to the config space array */
2597	uint16_t const u16Cmd = PDMPciDevGetWord(pPciDev, VBOX_PCI_COMMAND);
2598	Log4(("devpciR3UpdateMappings: dev %u/%u (%s): u16Cmd=%#x\n",
2599	pPciDev->uDevFn >> VBOX_PCI_DEVFN_DEV_SHIFT, pPciDev->uDevFn & VBOX_PCI_DEVFN_FUN_MASK, pPciDev->pszNameR3, u16Cmd));
2600	for (unsigned iRegion = 0; iRegion < VBOX_PCI_NUM_REGIONS; iRegion++)
2601	{
2602	/* Skip over BAR2..BAR5 for bridges, as they have a different meaning there. */
2603	if (fP2PBridge && iRegion >= 2 && iRegion <= 5)
2604	continue;
2605	PCIIOREGION *pRegion = &pPciDev->Int.s.aIORegions[iRegion];
2606	uint64_t const cbRegion = pRegion->size;
2607	if (cbRegion != 0)
2608	{
2609	uint32_t const offCfgReg = devpciGetRegionReg(iRegion);
2610	bool const f64Bit = (pRegion->type & ((uint8_t)(PCI_ADDRESS_SPACE_BAR64 \| PCI_ADDRESS_SPACE_IO)))
2611	== PCI_ADDRESS_SPACE_BAR64;
2612	uint64_t uNew = INVALID_PCI_ADDRESS;
2613
2614	/*
2615	* Port I/O region. Check if mapped and within 1..65535 range.
2616	*/
2617	if (pRegion->type & PCI_ADDRESS_SPACE_IO)
2618	{
2619	if (u16Cmd & VBOX_PCI_COMMAND_IO)
2620	{
2621	/* safe, only needs to go to the config space array */
2622	uint32_t uIoBase = PDMPciDevGetDWord(pPciDev, offCfgReg);
2623	uIoBase &= ~(uint32_t)(cbRegion - 1);
2624
2625	uint64_t uLast = cbRegion - 1 + uIoBase;
2626	if ( uLast < _64K
2627	&& uIoBase < uLast
2628	&& uIoBase > 0)
2629	uNew = uIoBase;
2630	else
2631	Log4(("devpciR3UpdateMappings: dev %u/%u (%s): region #%u: Disregarding invalid I/O port range: %#RX32..%#RX64\n",
2632	pPciDev->uDevFn >> VBOX_PCI_DEVFN_DEV_SHIFT, pPciDev->uDevFn & VBOX_PCI_DEVFN_FUN_MASK,
2633	pPciDev->pszNameR3, iRegion, uIoBase, uLast));
2634	}
2635	}
2636	/*
2637	* MMIO or ROM. Check ROM enable bit and range.
2638	*
2639	* Note! We exclude the I/O-APIC/HPET/ROM area at the end of the first 4GB to
2640	* prevent the (fake) PCI BIOS and others from making a mess. Pure paranoia.
2641	* Additionally addresses with the top 32 bits all set are excluded, to
2642	* catch silly OSes which probe 64-bit BARs without disabling the
2643	* corresponding transactions.
2644	*
2645	* Update: The pure paranoia above broke NT 3.51, so it was changed to only
2646	* exclude the 64KB BIOS mapping at the top. NT 3.51 excludes the
2647	* top 256KB, btw.
2648	*/
2649	/** @todo Query upper boundrary from CPUM and PGMPhysRom instead of making
2650	* incorrect assumptions. */
2651	else if (u16Cmd & VBOX_PCI_COMMAND_MEMORY)
2652	{
2653	/* safe, only needs to go to the config space array */
2654	uint64_t uMemBase = PDMPciDevGetDWord(pPciDev, offCfgReg);
2655	if (f64Bit)
2656	{
2657	Assert(iRegion < VBOX_PCI_ROM_SLOT);
2658	/* safe, only needs to go to the config space array */
2659	uMemBase \|= (uint64_t)PDMPciDevGetDWord(pPciDev, offCfgReg + 4) << 32;
2660	}
2661	if ( iRegion != PCI_ROM_SLOT
2662	\|\| (uMemBase & RT_BIT_32(0))) /* ROM enable bit. */
2663	{
2664	uMemBase &= ~(cbRegion - 1);
2665
2666	uint64_t uLast = uMemBase + cbRegion - 1;
2667	if ( uMemBase < uLast
2668	&& uMemBase > 0)
2669	{
2670	if ( ( uMemBase > UINT32_C(0xffffffff)
2671	\|\| uLast < UINT32_C(0xffff0000) ) /* UINT32_C(0xfec00000) - breaks NT3.51! */
2672	&& uMemBase < UINT64_C(0xffffffff00000000) )
2673	uNew = uMemBase;
2674	else
2675	Log(("devpciR3UpdateMappings: dev %u/%u (%s): region #%u: Rejecting address range: %#RX64..%#RX64!\n",
2676	pPciDev->uDevFn >> VBOX_PCI_DEVFN_DEV_SHIFT, pPciDev->uDevFn & VBOX_PCI_DEVFN_FUN_MASK,
2677	pPciDev->pszNameR3, iRegion, uMemBase, uLast));
2678	}
2679	else
2680	Log2(("devpciR3UpdateMappings: dev %u/%u (%s): region #%u: Disregarding invalid address range: %#RX64..%#RX64\n",
2681	pPciDev->uDevFn >> VBOX_PCI_DEVFN_DEV_SHIFT, pPciDev->uDevFn & VBOX_PCI_DEVFN_FUN_MASK,
2682	pPciDev->pszNameR3, iRegion, uMemBase, uLast));
2683	}
2684	}
2685
2686	/*
2687	* Do real unmapping and/or mapping if the address change.
2688	*/
2689	Log4(("devpciR3UpdateMappings: dev %u/%u (%s): iRegion=%u addr=%#RX64 uNew=%#RX64\n",
2690	pPciDev->uDevFn >> VBOX_PCI_DEVFN_DEV_SHIFT, pPciDev->uDevFn & VBOX_PCI_DEVFN_FUN_MASK, pPciDev->pszNameR3,
2691	iRegion, pRegion->addr, uNew));
2692	if (uNew != pRegion->addr)
2693	{
2694	LogRel2(("PCI: config dev %u/%u (%s) BAR%i: %#RX64 -> %#RX64 (LB %RX64 (%RU64))\n",
2695	pPciDev->uDevFn >> VBOX_PCI_DEVFN_DEV_SHIFT, pPciDev->uDevFn & VBOX_PCI_DEVFN_FUN_MASK,
2696	pPciDev->pszNameR3, iRegion, pRegion->addr, uNew, cbRegion, cbRegion));
2697
2698	int rc = devpciR3UnmapRegion(pPciDev, iRegion);
2699	AssertLogRelRC(rc);
2700	pRegion->addr = uNew;
2701	if (uNew != INVALID_PCI_ADDRESS)
2702	{
2703	/* The callout is optional (typically not used): */
2704	if (!pRegion->pfnMap)
2705	rc = VINF_SUCCESS;
2706	else
2707	{
2708	rc = pRegion->pfnMap(pPciDev->Int.s.pDevInsR3, pPciDev, iRegion,
2709	uNew, cbRegion, (PCIADDRESSSPACE)(pRegion->type));
2710	AssertLogRelRC(rc);
2711	}
2712
2713	/* We do the mapping for most devices: */
2714	if (pRegion->hHandle != UINT64_MAX && rc != VINF_PCI_MAPPING_DONE)
2715	{
2716	switch (pRegion->fFlags & PDMPCIDEV_IORGN_F_HANDLE_MASK)
2717	{
2718	case PDMPCIDEV_IORGN_F_IOPORT_HANDLE:
2719	rc = PDMDevHlpIoPortMap(pPciDev->Int.s.pDevInsR3, (IOMIOPORTHANDLE)pRegion->hHandle, (RTIOPORT)uNew);
2720	AssertLogRelRC(rc);
2721	break;
2722
2723	case PDMPCIDEV_IORGN_F_MMIO_HANDLE:
2724	rc = PDMDevHlpMmioMap(pPciDev->Int.s.pDevInsR3, (IOMMMIOHANDLE)pRegion->hHandle, uNew);
2725	AssertLogRelRC(rc);
2726	break;
2727
2728	case PDMPCIDEV_IORGN_F_MMIO2_HANDLE:
2729	rc = PDMDevHlpMmio2Map(pPciDev->Int.s.pDevInsR3, (PGMMMIO2HANDLE)pRegion->hHandle, uNew);
2730	AssertRC(rc);
2731	break;
2732
2733	default:
2734	AssertLogRelFailed();
2735	}
2736	}
2737	}
2738	}
2739
2740	if (f64Bit)
2741	iRegion++;
2742	}
2743	/* else: size == 0: unused region */
2744	}
2745
2746	return VINF_SUCCESS;
2747	}
2748
2749
2750	/**
2751	* Worker for devpciR3CommonDefaultConfigWrite that write a byte to a BAR.
2752	*
2753	* @param pPciDev The PCI device.
2754	* @param iRegion The region.
2755	* @param off The BAR offset.
2756	* @param bVal The byte to write.
2757	*/
2758	DECLINLINE(void) devpciR3WriteBarByte(PPDMPCIDEV pPciDev, uint32_t iRegion, uint32_t off, uint8_t bVal)
2759	{
2760	PCIIOREGION *pRegion = &pPciDev->Int.s.aIORegions[iRegion];
2761	Log3Func(("region=%d off=%d val=%#x size=%#llx\n", iRegion, off, bVal, pRegion->size));
2762	Assert(off <= 3);
2763
2764	/* Check if we're writing to upper part of 64-bit BAR. */
2765	if (pRegion->type == 0xff)
2766	{
2767	AssertLogRelReturnVoid(iRegion > 0 && iRegion < VBOX_PCI_ROM_SLOT);
2768	pRegion--;
2769	iRegion--;
2770	off += 4;
2771	Assert(pRegion->type & PCI_ADDRESS_SPACE_BAR64);
2772	}
2773
2774	/* Ignore zero sized regions (they don't exist). */
2775	if (pRegion->size != 0)
2776	{
2777	uint32_t uAddr = devpciGetRegionReg(iRegion) + off;
2778	Assert((pRegion->size & (pRegion->size - 1)) == 0); /* Region size must be power of two. */
2779	uint8_t bMask = ( (pRegion->size - 1) >> (off * 8) ) & 0xff;
2780	if (off == 0)
2781	bMask \|= (pRegion->type & PCI_ADDRESS_SPACE_IO)
2782	? (1 << 2) - 1 /* 2 lowest bits for IO region */ :
2783	(1 << 4) - 1 /* 4 lowest bits for memory region, also ROM enable bit for ROM region */;
2784
2785	/* safe, only needs to go to the config space array */
2786	uint8_t bOld = PDMPciDevGetByte(pPciDev, uAddr) & bMask;
2787	bVal = (bOld & bMask) \| (bVal & ~bMask);
2788
2789	Log3Func(("%x changed to %x\n", bOld, bVal));
2790
2791	/* safe, only needs to go to the config space array */
2792	PDMPciDevSetByte(pPciDev, uAddr, bVal);
2793	}
2794	}
2795
2796
2797	/**
2798	* Checks if the given configuration byte is writable.
2799	*
2800	* @returns true if writable, false if not
2801	* @param uAddress The config space byte byte.
2802	* @param bHeaderType The device header byte.
2803	*/
2804	DECLINLINE(bool) devpciR3IsConfigByteWritable(uint32_t uAddress, uint8_t bHeaderType)
2805	{
2806	switch (bHeaderType)
2807	{
2808	case 0x00: /* normal device */
2809	case 0x80: /* multi-function device */
2810	switch (uAddress)
2811	{
2812	/* Read-only registers. */
2813	case VBOX_PCI_VENDOR_ID:
2814	case VBOX_PCI_VENDOR_ID+1:
2815	case VBOX_PCI_DEVICE_ID:
2816	case VBOX_PCI_DEVICE_ID+1:
2817	case VBOX_PCI_REVISION_ID:
2818	case VBOX_PCI_CLASS_PROG:
2819	case VBOX_PCI_CLASS_SUB:
2820	case VBOX_PCI_CLASS_BASE:
2821	case VBOX_PCI_HEADER_TYPE:
2822	case VBOX_PCI_SUBSYSTEM_VENDOR_ID:
2823	case VBOX_PCI_SUBSYSTEM_VENDOR_ID+1:
2824	case VBOX_PCI_SUBSYSTEM_ID:
2825	case VBOX_PCI_SUBSYSTEM_ID+1:
2826	case VBOX_PCI_ROM_ADDRESS:
2827	case VBOX_PCI_ROM_ADDRESS+1:
2828	case VBOX_PCI_ROM_ADDRESS+2:
2829	case VBOX_PCI_ROM_ADDRESS+3:
2830	case VBOX_PCI_CAPABILITY_LIST:
2831	case VBOX_PCI_INTERRUPT_PIN:
2832	return false;
2833	/* Other registers can be written. */
2834	default:
2835	return true;
2836	}
2837	break;
2838	case 0x01: /* PCI-PCI bridge */
2839	switch (uAddress)
2840	{
2841	/* Read-only registers. */
2842	case VBOX_PCI_VENDOR_ID:
2843	case VBOX_PCI_VENDOR_ID+1:
2844	case VBOX_PCI_DEVICE_ID:
2845	case VBOX_PCI_DEVICE_ID+1:
2846	case VBOX_PCI_REVISION_ID:
2847	case VBOX_PCI_CLASS_PROG:
2848	case VBOX_PCI_CLASS_SUB:
2849	case VBOX_PCI_CLASS_BASE:
2850	case VBOX_PCI_HEADER_TYPE:
2851	case VBOX_PCI_ROM_ADDRESS_BR:
2852	case VBOX_PCI_ROM_ADDRESS_BR+1:
2853	case VBOX_PCI_ROM_ADDRESS_BR+2:
2854	case VBOX_PCI_ROM_ADDRESS_BR+3:
2855	case VBOX_PCI_INTERRUPT_PIN:
2856	return false;
2857	/* Other registers can be written. */
2858	default:
2859	return true;
2860	}
2861	break;
2862	default:
2863	AssertMsgFailed(("Unknown header type %#x\n", bHeaderType));
2864	return false;
2865	}
2866	}
2867
2868
2869	/**
2870	* Writes config space for a device, ignoring interceptors.
2871	*
2872	* See paragraph 7.5 of PCI Express specification (p. 349) for
2873	* definition of registers and their writability policy.
2874	*/
2875	DECLHIDDEN(VBOXSTRICTRC) devpciR3CommonConfigWriteWorker(PPDMDEVINS pDevIns, PDEVPCIBUSCC pBusCC,
2876	PPDMPCIDEV pPciDev, uint32_t uAddress, unsigned cb, uint32_t u32Value)
2877	{
2878	Assert(cb <= 4 && cb != 3);
2879	VBOXSTRICTRC rcStrict = VINF_SUCCESS;
2880
2881	if (uAddress + cb <= RT_MIN(pPciDev->cbConfig, sizeof(pPciDev->abConfig)))
2882	{
2883	/*
2884	* MSI and MSI-X capabilites needs to be handled separately.
2885	*/
2886	if ( pciDevIsMsiCapable(pPciDev)
2887	&& uAddress - (uint32_t)pPciDev->Int.s.u8MsiCapOffset < (uint32_t)pPciDev->Int.s.u8MsiCapSize)
2888	MsiR3PciConfigWrite(pDevIns, pBusCC->CTX_SUFF(pPciHlp), pPciDev, uAddress, u32Value, cb);
2889	else if ( pciDevIsMsixCapable(pPciDev)
2890	&& uAddress - (uint32_t)pPciDev->Int.s.u8MsixCapOffset < (uint32_t)pPciDev->Int.s.u8MsixCapSize)
2891	MsixR3PciConfigWrite(pDevIns, pBusCC->CTX_SUFF(pPciHlp), pPciDev, uAddress, u32Value, cb);
2892	else
2893	{
2894	/*
2895	* Handle the writes byte-by-byte to catch all possible cases.
2896	*
2897	* Note! Real hardware may not necessarily handle non-dword writes like
2898	* we do here and even produce erratic behavior. We don't (yet)
2899	* try emulate that.
2900	*/
2901	uint8_t const bHeaderType = devpciR3GetByte(pPciDev, VBOX_PCI_HEADER_TYPE);
2902	bool const fP2PBridge = bHeaderType == 0x01; /* PCI-PCI bridge */
2903	bool fUpdateMappings = false;
2904	while (cb-- > 0)
2905	{
2906	bool fWritable = devpciR3IsConfigByteWritable(uAddress, bHeaderType);
2907	uint8_t bVal = (uint8_t)u32Value;
2908	bool fRom = false;
2909	switch (uAddress)
2910	{
2911	case VBOX_PCI_COMMAND: /* Command register, bits 0-7. */
2912	if (fWritable)
2913	{
2914	/* safe, only needs to go to the config space array */
2915	PDMPciDevSetByte(pPciDev, uAddress, bVal);
2916	fUpdateMappings = true;
2917	}
2918	break;
2919
2920	case VBOX_PCI_COMMAND+1: /* Command register, bits 8-15. */
2921	if (fWritable)
2922	{
2923	/* don't change reserved bits (11-15) */
2924	bVal &= ~UINT8_C(0xf8);
2925	/* safe, only needs to go to the config space array */
2926	PDMPciDevSetByte(pPciDev, uAddress, bVal);
2927	fUpdateMappings = true;
2928	}
2929	break;
2930
2931	case VBOX_PCI_STATUS: /* Status register, bits 0-7. */
2932	/* don't change read-only bits => actually all lower bits are read-only */
2933	bVal &= ~UINT8_C(0xff);
2934	/* status register, low part: clear bits by writing a '1' to the corresponding bit */
2935	pPciDev->abConfig[uAddress] &= ~bVal;
2936	break;
2937
2938	case VBOX_PCI_STATUS+1: /* Status register, bits 8-15. */
2939	/* don't change read-only bits */
2940	bVal &= ~UINT8_C(0x06);
2941	/* status register, high part: clear bits by writing a '1' to the corresponding bit */
2942	pPciDev->abConfig[uAddress] &= ~bVal;
2943	break;
2944
2945	case VBOX_PCI_ROM_ADDRESS: case VBOX_PCI_ROM_ADDRESS +1: case VBOX_PCI_ROM_ADDRESS +2: case VBOX_PCI_ROM_ADDRESS +3:
2946	fRom = true;
2947	RT_FALL_THRU();
2948	case VBOX_PCI_BASE_ADDRESS_0: case VBOX_PCI_BASE_ADDRESS_0+1: case VBOX_PCI_BASE_ADDRESS_0+2: case VBOX_PCI_BASE_ADDRESS_0+3:
2949	case VBOX_PCI_BASE_ADDRESS_1: case VBOX_PCI_BASE_ADDRESS_1+1: case VBOX_PCI_BASE_ADDRESS_1+2: case VBOX_PCI_BASE_ADDRESS_1+3:
2950	case VBOX_PCI_BASE_ADDRESS_2: case VBOX_PCI_BASE_ADDRESS_2+1: case VBOX_PCI_BASE_ADDRESS_2+2: case VBOX_PCI_BASE_ADDRESS_2+3:
2951	case VBOX_PCI_BASE_ADDRESS_3: case VBOX_PCI_BASE_ADDRESS_3+1: case VBOX_PCI_BASE_ADDRESS_3+2: case VBOX_PCI_BASE_ADDRESS_3+3:
2952	case VBOX_PCI_BASE_ADDRESS_4: case VBOX_PCI_BASE_ADDRESS_4+1: case VBOX_PCI_BASE_ADDRESS_4+2: case VBOX_PCI_BASE_ADDRESS_4+3:
2953	case VBOX_PCI_BASE_ADDRESS_5: case VBOX_PCI_BASE_ADDRESS_5+1: case VBOX_PCI_BASE_ADDRESS_5+2: case VBOX_PCI_BASE_ADDRESS_5+3:
2954	/* We check that, as same PCI register numbers as BARs may mean different registers for bridges */
2955	if (!fP2PBridge)
2956	{
2957	uint32_t iRegion = fRom ? VBOX_PCI_ROM_SLOT : (uAddress - VBOX_PCI_BASE_ADDRESS_0) >> 2;
2958	devpciR3WriteBarByte(pPciDev, iRegion, uAddress & 0x3, bVal);
2959	fUpdateMappings = true;
2960	break;
2961	}
2962	if (uAddress < VBOX_PCI_BASE_ADDRESS_2 \|\| uAddress > VBOX_PCI_BASE_ADDRESS_5+3)
2963	{
2964	/* PCI bridges have only BAR0, BAR1 and ROM */
2965	uint32_t iRegion = fRom ? VBOX_PCI_ROM_SLOT : (uAddress - VBOX_PCI_BASE_ADDRESS_0) >> 2;
2966	devpciR3WriteBarByte(pPciDev, iRegion, uAddress & 0x3, bVal);
2967	fUpdateMappings = true;
2968	break;
2969	}
2970	if ( uAddress == VBOX_PCI_IO_BASE
2971	\|\| uAddress == VBOX_PCI_IO_LIMIT
2972	\|\| uAddress == VBOX_PCI_MEMORY_BASE
2973	\|\| uAddress == VBOX_PCI_MEMORY_LIMIT
2974	\|\| uAddress == VBOX_PCI_PREF_MEMORY_BASE
2975	\|\| uAddress == VBOX_PCI_PREF_MEMORY_LIMIT)
2976	{
2977	/* All bridge address decoders have the low 4 bits
2978	* as readonly, and all but the prefetchable ones
2979	* have the low 4 bits as 0 (the prefetchable have
2980	* it as 1 to show the 64-bit decoder support. */
2981	bVal &= 0xf0;
2982	if ( uAddress == VBOX_PCI_PREF_MEMORY_BASE
2983	\|\| uAddress == VBOX_PCI_PREF_MEMORY_LIMIT)
2984	bVal \|= 0x01;
2985	}
2986	/* (bridge config space which isn't a BAR) */
2987	RT_FALL_THRU();
2988	default:
2989	if (fWritable)
2990	/* safe, only needs to go to the config space array */
2991	PDMPciDevSetByte(pPciDev, uAddress, bVal);
2992	break;
2993	}
2994	uAddress++;
2995	u32Value >>= 8;
2996	}
2997
2998	/*
2999	* Update the region mappings if anything changed related to them (command, BARs, ROM).
3000	*/
3001	if (fUpdateMappings)
3002	rcStrict = devpciR3UpdateMappings(pPciDev, fP2PBridge);
3003	}
3004	}
3005	else
3006	AssertMsgFailed(("Write after end of PCI config space: %#x LB %u\n", uAddress, cb));
3007
3008	return rcStrict;
3009	}
3010
3011
3012	/**
3013	* @interface_method_impl{PDMPCIBUSREGR3,pfnConfigWrite}
3014	*/
3015	DECLCALLBACK(VBOXSTRICTRC) devpciR3CommonConfigWrite(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev,
3016	uint32_t uAddress, unsigned cb, uint32_t u32Value)
3017	{
3018	PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
3019	return devpciR3CommonConfigWriteWorker(pDevIns, pBusCC, pPciDev, uAddress, cb, u32Value);
3020	}
3021
3022
3023	/* -=-=-=-=-=- Debug Info Handlers -=-=-=-=-=- */
3024
3025	/**
3026	* Indents an info line.
3027	* @param pHlp The info helper.
3028	* @param iIndentLvl The desired indentation level.
3029	*/
3030	static void devpciR3InfoIndent(PCDBGFINFOHLP pHlp, unsigned iIndentLvl)
3031	{
3032	for (unsigned i = 0; i < iIndentLvl; i++)
3033	pHlp->pfnPrintf(pHlp, " ");
3034	}
3035
3036	static const char *devpciR3InInfoPciBusClassName(uint8_t iBaseClass)
3037	{
3038	static const char *s_szBaseClass[] =
3039	{
3040	/* 00h */ "unknown",
3041	/* 01h */ "mass storage controller",
3042	/* 02h */ "network controller",
3043	/* 03h */ "display controller",
3044	/* 04h */ "multimedia controller",
3045	/* 05h */ "memory controller",
3046	/* 06h */ "bridge device",
3047	/* 07h */ "simple communication controllers",
3048	/* 08h */ "base system peripherals",
3049	/* 09h */ "input devices",
3050	/* 0Ah */ "docking stations",
3051	/* 0Bh */ "processors",
3052	/* 0Ch */ "serial bus controllers",
3053	/* 0Dh */ "wireless controller",
3054	/* 0Eh */ "intelligent I/O controllers",
3055	/* 0Fh */ "satellite communication controllers",
3056	/* 10h */ "encryption/decryption controllers",
3057	/* 11h */ "data acquisition and signal processing controllers"
3058	};
3059	if (iBaseClass < RT_ELEMENTS(s_szBaseClass))
3060	return s_szBaseClass[iBaseClass];
3061	if (iBaseClass < 0xFF)
3062	return "reserved";
3063	return "device does not fit in any defined classes";
3064	}
3065
3066
3067	/**
3068	* Recursive worker for devpciR3InfoPci.
3069	*
3070	* @param pBus The bus to show info for.
3071	* @param pHlp The info helpers.
3072	* @param iIndentLvl The indentation level.
3073	* @param fRegisters Whether to show device registers or not.
3074	*/
3075	static void devpciR3InfoPciBus(PDEVPCIBUS pBus, PCDBGFINFOHLP pHlp, unsigned iIndentLvl, bool fRegisters)
3076	{
3077	/* This has to use the callbacks for accuracy reasons. Otherwise it can get
3078	* confusing in the passthrough case or when the callbacks for some device
3079	* are doing something non-trivial (like implementing an indirect
3080	* passthrough approach), because then the abConfig array is an imprecise
3081	* cache needed for efficiency (so that certain reads can be done from
3082	* R0/RC), but far from authoritative or what the guest would see. */
3083
3084	for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
3085	{
3086	PPDMPCIDEV pPciDev = pBus->apDevices[uDevFn];
3087	if (pPciDev != NULL)
3088	{
3089	devpciR3InfoIndent(pHlp, iIndentLvl);
3090
3091	/*
3092	* For passthrough devices MSI/MSI-X mostly reflects the way interrupts delivered to the guest,
3093	* as host driver handles real devices interrupts.
3094	*/
3095	pHlp->pfnPrintf(pHlp, "%02x:%02x.%d %s%s: %04x-%04x %s%s%s",
3096	pBus->iBus, (uDevFn >> 3) & 0xff, uDevFn & 0x7,
3097	pPciDev->pszNameR3,
3098	pciDevIsPassthrough(pPciDev) ? " (PASSTHROUGH)" : "",
3099	devpciR3GetWord(pPciDev, VBOX_PCI_VENDOR_ID), devpciR3GetWord(pPciDev, VBOX_PCI_DEVICE_ID),
3100	pBus->fTypeIch9 ? "ICH9" : pBus->fTypePiix3 ? "PIIX3" : "?type?",
3101	pciDevIsMsiCapable(pPciDev) ? " MSI" : "",
3102	pciDevIsMsixCapable(pPciDev) ? " MSI-X" : ""
3103	);
3104	if (devpciR3GetByte(pPciDev, VBOX_PCI_INTERRUPT_PIN) != 0)
3105	{
3106	pHlp->pfnPrintf(pHlp, " IRQ%d", devpciR3GetByte(pPciDev, VBOX_PCI_INTERRUPT_LINE));
3107	pHlp->pfnPrintf(pHlp, " (INTA#->IRQ%d)", 0x10 + ich9pciSlot2ApicIrq(uDevFn >> 3, 0));
3108	}
3109	pHlp->pfnPrintf(pHlp, "\n");
3110	devpciR3InfoIndent(pHlp, iIndentLvl + 2);
3111	uint8_t uClassBase = devpciR3GetByte(pPciDev, VBOX_PCI_CLASS_BASE);
3112	uint8_t uClassSub = devpciR3GetByte(pPciDev, VBOX_PCI_CLASS_SUB);
3113	pHlp->pfnPrintf(pHlp, "Class base/sub: %02x%02x (%s)\n",
3114	uClassBase, uClassSub, devpciR3InInfoPciBusClassName(uClassBase));
3115
3116	if (pciDevIsMsiCapable(pPciDev) \|\| pciDevIsMsixCapable(pPciDev))
3117	{
3118	devpciR3InfoIndent(pHlp, iIndentLvl + 2);
3119
3120	if (pciDevIsMsiCapable(pPciDev))
3121	pHlp->pfnPrintf(pHlp, "MSI: %s ", MsiIsEnabled(pPciDev) ? "on" : "off");
3122
3123	if (pciDevIsMsixCapable(pPciDev))
3124	pHlp->pfnPrintf(pHlp, "MSI-X: %s ", MsixIsEnabled(pPciDev) ? "on" : "off");
3125
3126	pHlp->pfnPrintf(pHlp, "\n");
3127	}
3128
3129	for (unsigned iRegion = 0; iRegion < VBOX_PCI_NUM_REGIONS; iRegion++)
3130	{
3131	PCIIOREGION const *pRegion = &pPciDev->Int.s.aIORegions[iRegion];
3132	uint64_t const cbRegion = pRegion->size;
3133
3134	if (cbRegion == 0)
3135	continue;
3136
3137	uint32_t uAddr = devpciR3GetDWord(pPciDev, devpciGetRegionReg(iRegion));
3138	const char * pszDesc;
3139	char szDescBuf[128];
3140
3141	bool f64Bit = (pRegion->type & ((uint8_t)(PCI_ADDRESS_SPACE_BAR64 \| PCI_ADDRESS_SPACE_IO)))
3142	== PCI_ADDRESS_SPACE_BAR64;
3143	if (pRegion->type & PCI_ADDRESS_SPACE_IO)
3144	{
3145	pszDesc = "IO";
3146	uAddr &= ~0x3;
3147	}
3148	else
3149	{
3150	RTStrPrintf(szDescBuf, sizeof(szDescBuf), "MMIO%s%s",
3151	f64Bit ? "64" : "32",
3152	pRegion->type & PCI_ADDRESS_SPACE_MEM_PREFETCH ? " PREFETCH" : "");
3153	pszDesc = szDescBuf;
3154	uAddr &= ~0xf;
3155	}
3156
3157	devpciR3InfoIndent(pHlp, iIndentLvl + 2);
3158	pHlp->pfnPrintf(pHlp, "%s region #%u: ", pszDesc, iRegion);
3159	if (f64Bit)
3160	{
3161	uint32_t u32High = devpciR3GetDWord(pPciDev, devpciGetRegionReg(iRegion+1));
3162	uint64_t u64Addr = RT_MAKE_U64(uAddr, u32High);
3163	pHlp->pfnPrintf(pHlp, "%RX64..%RX64\n", u64Addr, u64Addr + cbRegion - 1);
3164	iRegion++;
3165	}
3166	else
3167	pHlp->pfnPrintf(pHlp, "%x..%x\n", uAddr, uAddr + (uint32_t)cbRegion - 1);
3168	}
3169
3170	devpciR3InfoIndent(pHlp, iIndentLvl + 2);
3171	uint16_t iCmd = devpciR3GetWord(pPciDev, VBOX_PCI_COMMAND);
3172	uint16_t iStatus = devpciR3GetWord(pPciDev, VBOX_PCI_STATUS);
3173	pHlp->pfnPrintf(pHlp, "Command: %04x, Status: %04x\n", iCmd, iStatus);
3174	devpciR3InfoIndent(pHlp, iIndentLvl + 2);
3175	pHlp->pfnPrintf(pHlp, "Bus master: %s\n", iCmd & VBOX_PCI_COMMAND_MASTER ? "Yes" : "No");
3176	if (iCmd != PDMPciDevGetCommand(pPciDev))
3177	{
3178	devpciR3InfoIndent(pHlp, iIndentLvl + 2);
3179	pHlp->pfnPrintf(pHlp, "CACHE INCONSISTENCY: Command: %04x\n", PDMPciDevGetCommand(pPciDev));
3180	}
3181
3182	if (fRegisters)
3183	{
3184	devpciR3InfoIndent(pHlp, iIndentLvl + 2);
3185	pHlp->pfnPrintf(pHlp, "PCI registers:\n");
3186	for (unsigned iReg = 0; iReg < 0x100; )
3187	{
3188	unsigned iPerLine = 0x10;
3189	Assert(0x100 % iPerLine == 0);
3190	devpciR3InfoIndent(pHlp, iIndentLvl + 3);
3191
3192	while (iPerLine-- > 0)
3193	pHlp->pfnPrintf(pHlp, "%02x ", devpciR3GetByte(pPciDev, iReg++));
3194	pHlp->pfnPrintf(pHlp, "\n");
3195	}
3196	}
3197	}
3198	}
3199
3200	if (pBus->cBridges > 0)
3201	{
3202	devpciR3InfoIndent(pHlp, iIndentLvl);
3203	pHlp->pfnPrintf(pHlp, "Registered %d bridges, subordinate buses info follows\n", pBus->cBridges);
3204	for (uint32_t iBridge = 0; iBridge < pBus->cBridges; iBridge++)
3205	{
3206	PPDMDEVINS pDevInsSub = pBus->papBridgesR3[iBridge]->Int.s.CTX_SUFF(pDevIns);
3207	PPDMPCIDEV pPciDevSub = pDevInsSub->apPciDevs[0];
3208	PDEVPCIBUS pBusSub = PDMINS_2_DATA(pDevInsSub, PDEVPCIBUS);
3209	uint8_t uPrimary = devpciR3GetByte(pPciDevSub, VBOX_PCI_PRIMARY_BUS);
3210	uint8_t uSecondary = devpciR3GetByte(pPciDevSub, VBOX_PCI_SECONDARY_BUS);
3211	uint8_t uSubordinate = devpciR3GetByte(pPciDevSub, VBOX_PCI_SUBORDINATE_BUS);
3212	devpciR3InfoIndent(pHlp, iIndentLvl);
3213	pHlp->pfnPrintf(pHlp, "%02x:%02x.%d: bridge topology: primary=%d secondary=%d subordinate=%d\n",
3214	uPrimary, pPciDevSub->uDevFn >> 3, pPciDevSub->uDevFn & 7,
3215	uPrimary, uSecondary, uSubordinate);
3216	if ( uPrimary != PDMPciDevGetByte(pPciDevSub, VBOX_PCI_PRIMARY_BUS)
3217	\|\| uSecondary != PDMPciDevGetByte(pPciDevSub, VBOX_PCI_SECONDARY_BUS)
3218	\|\| uSubordinate != PDMPciDevGetByte(pPciDevSub, VBOX_PCI_SUBORDINATE_BUS))
3219	{
3220	devpciR3InfoIndent(pHlp, iIndentLvl);
3221	pHlp->pfnPrintf(pHlp, "CACHE INCONSISTENCY: primary=%d secondary=%d subordinate=%d\n",
3222	PDMPciDevGetByte(pPciDevSub, VBOX_PCI_PRIMARY_BUS),
3223	PDMPciDevGetByte(pPciDevSub, VBOX_PCI_SECONDARY_BUS),
3224	PDMPciDevGetByte(pPciDevSub, VBOX_PCI_SUBORDINATE_BUS));
3225	}
3226	devpciR3InfoIndent(pHlp, iIndentLvl);
3227	pHlp->pfnPrintf(pHlp, "behind bridge: ");
3228	uint8_t uIoBase = devpciR3GetByte(pPciDevSub, VBOX_PCI_IO_BASE);
3229	uint8_t uIoLimit = devpciR3GetByte(pPciDevSub, VBOX_PCI_IO_LIMIT);
3230	pHlp->pfnPrintf(pHlp, "I/O %#06x..%#06x",
3231	(uIoBase & 0xf0) << 8,
3232	(uIoLimit & 0xf0) << 8 \| 0xfff);
3233	if (uIoBase > uIoLimit)
3234	pHlp->pfnPrintf(pHlp, " (IGNORED)");
3235	pHlp->pfnPrintf(pHlp, "\n");
3236	devpciR3InfoIndent(pHlp, iIndentLvl);
3237	pHlp->pfnPrintf(pHlp, "behind bridge: ");
3238	uint32_t uMemoryBase = devpciR3GetWord(pPciDevSub, VBOX_PCI_MEMORY_BASE);
3239	uint32_t uMemoryLimit = devpciR3GetWord(pPciDevSub, VBOX_PCI_MEMORY_LIMIT);
3240	pHlp->pfnPrintf(pHlp, "memory %#010x..%#010x",
3241	(uMemoryBase & 0xfff0) << 16,
3242	(uMemoryLimit & 0xfff0) << 16 \| 0xfffff);
3243	if (uMemoryBase > uMemoryLimit)
3244	pHlp->pfnPrintf(pHlp, " (IGNORED)");
3245	pHlp->pfnPrintf(pHlp, "\n");
3246	devpciR3InfoIndent(pHlp, iIndentLvl);
3247	pHlp->pfnPrintf(pHlp, "behind bridge: ");
3248	uint32_t uPrefMemoryRegBase = devpciR3GetWord(pPciDevSub, VBOX_PCI_PREF_MEMORY_BASE);
3249	uint32_t uPrefMemoryRegLimit = devpciR3GetWord(pPciDevSub, VBOX_PCI_PREF_MEMORY_LIMIT);
3250	uint64_t uPrefMemoryBase = (uPrefMemoryRegBase & 0xfff0) << 16;
3251	uint64_t uPrefMemoryLimit = (uPrefMemoryRegLimit & 0xfff0) << 16 \| 0xfffff;
3252	if ( (uPrefMemoryRegBase & 0xf) == 1
3253	&& (uPrefMemoryRegLimit & 0xf) == 1)
3254	{
3255	uPrefMemoryBase \|= (uint64_t)devpciR3GetDWord(pPciDevSub, VBOX_PCI_PREF_BASE_UPPER32) << 32;
3256	uPrefMemoryLimit \|= (uint64_t)devpciR3GetDWord(pPciDevSub, VBOX_PCI_PREF_LIMIT_UPPER32) << 32;
3257	pHlp->pfnPrintf(pHlp, "64-bit ");
3258	}
3259	else
3260	pHlp->pfnPrintf(pHlp, "32-bit ");
3261	pHlp->pfnPrintf(pHlp, "prefetch memory %#018llx..%#018llx", uPrefMemoryBase, uPrefMemoryLimit);
3262	if (uPrefMemoryBase > uPrefMemoryLimit)
3263	pHlp->pfnPrintf(pHlp, " (IGNORED)");
3264	pHlp->pfnPrintf(pHlp, "\n");
3265	devpciR3InfoPciBus(pBusSub, pHlp, iIndentLvl + 1, fRegisters);
3266	}
3267	}
3268	}
3269
3270
3271	/**
3272	* @callback_method_impl{FNDBGFHANDLERDEV, 'pci'}
3273	*/
3274	DECLCALLBACK(void) devpciR3InfoPci(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
3275	{
3276	PDEVPCIBUS pBus = DEVINS_2_DEVPCIBUS(pDevIns);
3277
3278	if (pszArgs == NULL \|\| !*pszArgs \|\| !strcmp(pszArgs, "basic"))
3279	devpciR3InfoPciBus(pBus, pHlp, 0 /iIndentLvl/, false /fRegisters/);
3280	else if (!strcmp(pszArgs, "verbose"))
3281	devpciR3InfoPciBus(pBus, pHlp, 0 /iIndentLvl/, true /fRegisters/);
3282	else
3283	pHlp->pfnPrintf(pHlp, "Invalid argument. Recognized arguments are 'basic', 'verbose'.\n");
3284	}
3285
3286
3287	/**
3288	* @callback_method_impl{FNDBGFHANDLERDEV, 'pciirq'}
3289	*/
3290	DECLCALLBACK(void) devpciR3InfoPciIrq(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
3291	{
3292	PDEVPCIROOT pPciRoot = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
3293	NOREF(pszArgs);
3294
3295	pHlp->pfnPrintf(pHlp, "PCI I/O APIC IRQ levels:\n");
3296	for (int i = 0; i < DEVPCI_APIC_IRQ_PINS; ++i)
3297	pHlp->pfnPrintf(pHlp, " IRQ%02d: %u\n", 0x10 + i, pPciRoot->auPciApicIrqLevels[i]);
3298	}
3299
3300
3301	/**
3302	* @interface_method_impl{PDMDEVREG,pfnConstruct}
3303	*/
3304	static DECLCALLBACK(int) ich9pciR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
3305	{
3306	RT_NOREF1(iInstance);
3307	Assert(iInstance == 0);
3308	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
3309
3310	PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
3311	PDEVPCIROOT pPciRoot = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
3312	PDEVPCIBUS pBus = &pPciRoot->PciBus;
3313	Assert(ASMMemIsZero(pPciRoot, sizeof(pPciRoot))); / code used to memset it for some funny reason. just temp insurance. */
3314
3315	/*
3316	* Validate and read configuration.
3317	*/
3318	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "IOAPIC\|McfgBase\|McfgLength", "");
3319
3320	/* query whether we got an IOAPIC */
3321	int rc = CFGMR3QueryBoolDef(pCfg, "IOAPIC", &pPciRoot->fUseIoApic, false /** @todo default to true? */);
3322	AssertRCReturn(rc, PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to query boolean value \"IOAPIC\"")));
3323
3324	if (!pPciRoot->fUseIoApic)
3325	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Must use IO-APIC with ICH9 chipset"));
3326
3327	rc = CFGMR3QueryU64Def(pCfg, "McfgBase", &pPciRoot->u64PciConfigMMioAddress, 0);
3328	AssertRCReturn(rc, PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to read \"McfgBase\"")));
3329
3330	rc = CFGMR3QueryU64Def(pCfg, "McfgLength", &pPciRoot->u64PciConfigMMioLength, 0);
3331	AssertRCReturn(rc, PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to read \"McfgLength\"")));
3332
3333	Log(("PCI: fUseIoApic=%RTbool McfgBase=%#RX64 McfgLength=%#RX64 fR0Enabled=%RTbool fRCEnabled=%RTbool\n", pPciRoot->fUseIoApic,
3334	pPciRoot->u64PciConfigMMioAddress, pPciRoot->u64PciConfigMMioLength, pDevIns->fR0Enabled, pDevIns->fRCEnabled));
3335
3336	/*
3337	* Init data.
3338	*/
3339	/* And fill values */
3340	pBusCC->pDevInsR3 = pDevIns;
3341	pPciRoot->hIoPortAddress = NIL_IOMIOPORTHANDLE;
3342	pPciRoot->hIoPortData = NIL_IOMIOPORTHANDLE;
3343	pPciRoot->hIoPortMagic = NIL_IOMIOPORTHANDLE;
3344	pPciRoot->hMmioMcfg = NIL_IOMMMIOHANDLE;
3345	pPciRoot->PciBus.fTypePiix3 = false;
3346	pPciRoot->PciBus.fTypeIch9 = true;
3347	pPciRoot->PciBus.fPureBridge = false;
3348	pPciRoot->PciBus.papBridgesR3 = (PPDMPCIDEV )PDMDevHlpMMHeapAllocZ(pDevIns, sizeof(PPDMPCIDEV) RT_ELEMENTS(pPciRoot->PciBus.apDevices));
3349	AssertLogRelReturn(pPciRoot->PciBus.papBridgesR3, VERR_NO_MEMORY);
3350
3351	/*
3352	* Disable default device locking.
3353	*/
3354	rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
3355	AssertRCReturn(rc, rc);
3356
3357	/*
3358	* Register bus
3359	*/
3360	PDMPCIBUSREGCC PciBusReg;
3361	PciBusReg.u32Version = PDM_PCIBUSREGCC_VERSION;
3362	PciBusReg.pfnRegisterR3 = devpciR3CommonRegisterDevice;
3363	PciBusReg.pfnRegisterMsiR3 = ich9pciRegisterMsi;
3364	PciBusReg.pfnIORegionRegisterR3 = devpciR3CommonIORegionRegister;
3365	PciBusReg.pfnInterceptConfigAccesses = devpciR3CommonInterceptConfigAccesses;
3366	PciBusReg.pfnConfigRead = devpciR3CommonConfigRead;
3367	PciBusReg.pfnConfigWrite = devpciR3CommonConfigWrite;
3368	PciBusReg.pfnSetIrqR3 = ich9pciSetIrq;
3369	PciBusReg.u32EndVersion = PDM_PCIBUSREGCC_VERSION;
3370	rc = PDMDevHlpPCIBusRegister(pDevIns, &PciBusReg, &pBusCC->pPciHlpR3, &pBus->iBus);
3371	if (RT_FAILURE(rc))
3372	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to register ourselves as a PCI Bus"));
3373	Assert(pBus->iBus == 0);
3374	if (pBusCC->pPciHlpR3->u32Version != PDM_PCIHLPR3_VERSION)
3375	return PDMDevHlpVMSetError(pDevIns, VERR_VERSION_MISMATCH, RT_SRC_POS,
3376	N_("PCI helper version mismatch; got %#x expected %#x"),
3377	pBusCC->pPciHlpR3->u32Version, PDM_PCIHLPR3_VERSION);
3378
3379	/*
3380	* Fill in PCI configs and add them to the bus.
3381	*/
3382	/** @todo Disabled for now because this causes error messages with Linux guests.
3383	* The guest loads the x38_edac device which tries to map a memory region
3384	* using an address given at place 0x48 - 0x4f in the PCI config space.
3385	* This fails. because we don't register such a region.
3386	*/
3387	#if 0
3388	/* Host bridge device */
3389	PDMPciDevSetVendorId( &pBus->PciDev, 0x8086); /* Intel */
3390	PDMPciDevSetDeviceId( &pBus->PciDev, 0x29e0); /* Desktop */
3391	PDMPciDevSetRevisionId(&pBus->PciDev, 0x01); /* rev. 01 */
3392	PDMPciDevSetClassBase( &pBus->PciDev, 0x06); /* bridge */
3393	PDMPciDevSetClassSub( &pBus->PciDev, 0x00); /* Host/PCI bridge */
3394	PDMPciDevSetClassProg( &pBus->PciDev, 0x00); /* Host/PCI bridge */
3395	PDMPciDevSetHeaderType(&pBus->PciDev, 0x00); /* bridge */
3396	PDMPciDevSetWord(&pBus->PciDev, VBOX_PCI_SEC_STATUS, 0x0280); /* secondary status */
3397
3398	pBus->PciDev.pDevIns = pDevIns;
3399	/* We register Host<->PCI controller on the bus */
3400	ich9pciRegisterInternal(pBus, 0, &pBus->PciDev, "dram");
3401	#endif
3402
3403	/*
3404	* Register I/O ports.
3405	*/
3406	static const IOMIOPORTDESC s_aAddrDesc[] = { { "PCI address", "PCI address", NULL, NULL }, { NULL, NULL, NULL, NULL } };
3407	rc = PDMDevHlpIoPortCreateAndMap(pDevIns, 0x0cf8, 1, ich9pciIOPortAddressWrite, ich9pciIOPortAddressRead,
3408	"ICH9 (PCI)", s_aAddrDesc, &pPciRoot->hIoPortAddress);
3409	AssertLogRelRCReturn(rc, rc);
3410
3411	static const IOMIOPORTDESC s_aDataDesc[] = { { "PCI data", "PCI data", NULL, NULL }, { NULL, NULL, NULL, NULL } };
3412	rc = PDMDevHlpIoPortCreateAndMap(pDevIns, 0x0cfc, 4, ich9pciIOPortDataWrite, ich9pciIOPortDataRead,
3413	"ICH9 (PCI)", s_aDataDesc, &pPciRoot->hIoPortData);
3414	AssertLogRelRCReturn(rc, rc);
3415
3416	static const IOMIOPORTDESC s_aMagicDesc[] = { { "PCI magic", NULL, NULL, NULL }, { NULL, NULL, NULL, NULL } };
3417	rc = PDMDevHlpIoPortCreateAndMap(pDevIns, 0x0410, 1, ich9pciR3IOPortMagicPCIWrite, ich9pciR3IOPortMagicPCIRead,
3418	"ICH9 (Fake PCI BIOS trigger)", s_aMagicDesc, &pPciRoot->hIoPortMagic);
3419	AssertLogRelRCReturn(rc, rc);
3420
3421	/*
3422	* MMIO handlers.
3423	*/
3424	if (pPciRoot->u64PciConfigMMioAddress != 0)
3425	{
3426	rc = PDMDevHlpMmioCreateAndMap(pDevIns, pPciRoot->u64PciConfigMMioAddress, pPciRoot->u64PciConfigMMioLength,
3427	ich9pciMcfgMMIOWrite, ich9pciMcfgMMIORead,
3428	IOMMMIO_FLAGS_READ_PASSTHRU \| IOMMMIO_FLAGS_WRITE_PASSTHRU,
3429	"MCFG ranges", &pPciRoot->hMmioMcfg);
3430	AssertMsgRCReturn(rc, ("rc=%Rrc %#RX64/%#RX64\n", rc, pPciRoot->u64PciConfigMMioAddress, pPciRoot->u64PciConfigMMioLength), rc);
3431	}
3432
3433	/*
3434	* Saved state and info handlers.
3435	*/
3436	rc = PDMDevHlpSSMRegisterEx(pDevIns, VBOX_ICH9PCI_SAVED_STATE_VERSION,
3437	sizeof(pBus) + 16128, "pgm",
3438	NULL, NULL, NULL,
3439	NULL, ich9pciR3SaveExec, NULL,
3440	NULL, ich9pciR3LoadExec, NULL);
3441	AssertRCReturn(rc, rc);
3442
3443	/** @todo other chipset devices shall be registered too */
3444
3445	PDMDevHlpDBGFInfoRegister(pDevIns, "pci",
3446	"Display PCI bus status. Recognizes 'basic' or 'verbose' as arguments, defaults to 'basic'.",
3447	devpciR3InfoPci);
3448	PDMDevHlpDBGFInfoRegister(pDevIns, "pciirq", "Display PCI IRQ state. (no arguments)", devpciR3InfoPciIrq);
3449
3450	return VINF_SUCCESS;
3451	}
3452
3453
3454	/**
3455	* @interface_method_impl{PDMDEVREG,pfnDestruct}
3456	*/
3457	static DECLCALLBACK(int) ich9pciR3Destruct(PPDMDEVINS pDevIns)
3458	{
3459	PDEVPCIROOT pPciRoot = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
3460	if (pPciRoot->PciBus.papBridgesR3)
3461	{
3462	PDMDevHlpMMHeapFree(pDevIns, pPciRoot->PciBus.papBridgesR3);
3463	pPciRoot->PciBus.papBridgesR3 = NULL;
3464	}
3465	return VINF_SUCCESS;
3466	}
3467
3468
3469	/**
3470	* @param pDevIns The PCI bus device instance.
3471	* @param pDev The PCI device to reset.
3472	*/
3473	void devpciR3ResetDevice(PPDMDEVINS pDevIns, PPDMPCIDEV pDev)
3474	{
3475	/* Clear regions */
3476	for (int iRegion = 0; iRegion < VBOX_PCI_NUM_REGIONS; iRegion++)
3477	{
3478	PCIIOREGION *pRegion = &pDev->Int.s.aIORegions[iRegion];
3479	if (pRegion->size == 0)
3480	continue;
3481	bool const f64Bit = (pRegion->type & ((uint8_t)(PCI_ADDRESS_SPACE_BAR64 \| PCI_ADDRESS_SPACE_IO)))
3482	== PCI_ADDRESS_SPACE_BAR64;
3483
3484	devpciR3UnmapRegion(pDev, iRegion);
3485
3486	if (f64Bit)
3487	iRegion++;
3488	}
3489
3490	if (pciDevIsPassthrough(pDev))
3491	{
3492	// no reset handler - we can do what we need in PDM reset handler
3493	/// @todo is it correct?
3494	}
3495	else
3496	{
3497	devpciR3SetWord(pDevIns, pDev, VBOX_PCI_COMMAND,
3498	devpciR3GetWord(pDev, VBOX_PCI_COMMAND)
3499	& ~(VBOX_PCI_COMMAND_IO \| VBOX_PCI_COMMAND_MEMORY \|
3500	VBOX_PCI_COMMAND_MASTER \| VBOX_PCI_COMMAND_SPECIAL \|
3501	VBOX_PCI_COMMAND_PARITY \| VBOX_PCI_COMMAND_SERR \|
3502	VBOX_PCI_COMMAND_FAST_BACK \| VBOX_PCI_COMMAND_INTX_DISABLE));
3503
3504	/* Bridge device reset handlers processed later */
3505	if (!pciDevIsPci2PciBridge(pDev))
3506	{
3507	devpciR3SetByte(pDevIns, pDev, VBOX_PCI_CACHE_LINE_SIZE, 0x0);
3508	devpciR3SetByte(pDevIns, pDev, VBOX_PCI_INTERRUPT_LINE, 0x0);
3509	}
3510
3511	/* Reset MSI message control. */
3512	if (pciDevIsMsiCapable(pDev))
3513	devpciR3SetWord(pDevIns, pDev, pDev->Int.s.u8MsiCapOffset + VBOX_MSI_CAP_MESSAGE_CONTROL,
3514	devpciR3GetWord(pDev, pDev->Int.s.u8MsiCapOffset + VBOX_MSI_CAP_MESSAGE_CONTROL) & 0xff8e);
3515
3516	/* Reset MSI-X message control. */
3517	if (pciDevIsMsixCapable(pDev))
3518	devpciR3SetWord(pDevIns, pDev, pDev->Int.s.u8MsixCapOffset + VBOX_MSIX_CAP_MESSAGE_CONTROL,
3519	devpciR3GetWord(pDev, pDev->Int.s.u8MsixCapOffset + VBOX_MSIX_CAP_MESSAGE_CONTROL) & 0x3fff);
3520	}
3521	}
3522
3523	/**
3524	* Returns the PCI express encoding for the given PCI Express Device/Port type string.
3525	*
3526	* @returns PCI express encoding.
3527	* @param pszExpressPortType The string identifier for the port/device type.
3528	*/
3529	static uint8_t ich9pcibridgeR3GetExpressPortTypeFromString(const char *pszExpressPortType)
3530	{
3531	if (!RTStrCmp(pszExpressPortType, "EndPtDev"))
3532	return VBOX_PCI_EXP_TYPE_ENDPOINT;
3533	if (!RTStrCmp(pszExpressPortType, "LegEndPtDev"))
3534	return VBOX_PCI_EXP_TYPE_LEG_END;
3535	if (!RTStrCmp(pszExpressPortType, "RootCmplxRootPort"))
3536	return VBOX_PCI_EXP_TYPE_ROOT_PORT;
3537	if (!RTStrCmp(pszExpressPortType, "ExpressSwUpstream"))
3538	return VBOX_PCI_EXP_TYPE_UPSTREAM;
3539	if (!RTStrCmp(pszExpressPortType, "ExpressSwDownstream"))
3540	return VBOX_PCI_EXP_TYPE_DOWNSTREAM;
3541	if (!RTStrCmp(pszExpressPortType, "Express2PciBridge"))
3542	return VBOX_PCI_EXP_TYPE_PCI_BRIDGE;
3543	if (!RTStrCmp(pszExpressPortType, "Pci2ExpressBridge"))
3544	return VBOX_PCI_EXP_TYPE_PCIE_BRIDGE;
3545	if (!RTStrCmp(pszExpressPortType, "RootCmplxIntEp"))
3546	return VBOX_PCI_EXP_TYPE_ROOT_INT_EP;
3547	if (!RTStrCmp(pszExpressPortType, "RootCmplxEc"))
3548	return VBOX_PCI_EXP_TYPE_ROOT_EC;
3549
3550	AssertLogRelMsgFailedReturn(("Unknown express port type specified"), VBOX_PCI_EXP_TYPE_ROOT_INT_EP);
3551	}
3552
3553	/**
3554	* Recursive worker for ich9pciReset.
3555	*
3556	* @param pDevIns ICH9 bridge (root or PCI-to-PCI) instance.
3557	*/
3558	static void ich9pciResetBridge(PPDMDEVINS pDevIns)
3559	{
3560	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
3561
3562	/* PCI-specific reset for each device. */
3563	for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
3564	{
3565	if (pBus->apDevices[uDevFn])
3566	devpciR3ResetDevice(pDevIns, pBus->apDevices[uDevFn]);
3567	}
3568
3569	for (uint32_t iBridge = 0; iBridge < pBus->cBridges; iBridge++)
3570	{
3571	if (pBus->papBridgesR3[iBridge])
3572	ich9pciResetBridge(pBus->papBridgesR3[iBridge]->Int.s.CTX_SUFF(pDevIns));
3573	}
3574
3575	/* Reset topology config for non-root bridge. Last thing to do, otherwise
3576	* the secondary and subordinate are instantly unreachable. */
3577	if (pBus->iBus != 0)
3578	{
3579	PPDMPCIDEV pPciDev = pDevIns->apPciDevs[0];
3580
3581	devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_PRIMARY_BUS, 0);
3582	devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_SECONDARY_BUS, 0);
3583	devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_SUBORDINATE_BUS, 0);
3584	/* Not resetting the address decoders of the bridge to 0, since the
3585	* PCI-to-PCI Bridge spec says that there is no default value. */
3586	}
3587	}
3588
3589
3590	/**
3591	* @interface_method_impl{PDMDEVREG,pfnReset}
3592	*/
3593	static DECLCALLBACK(void) ich9pciReset(PPDMDEVINS pDevIns)
3594	{
3595	/* Reset everything under the root bridge. */
3596	ich9pciResetBridge(pDevIns);
3597	}
3598
3599
3600	/**
3601	* @interface_method_impl{PDMIBASE,pfnQueryInterface}
3602	*/
3603	static DECLCALLBACK(void ) ich9pcibridgeQueryInterface(PPDMIBASE pInterface, const char pszIID)
3604	{
3605	PPDMDEVINS pDevIns = RT_FROM_MEMBER(pInterface, PDMDEVINS, IBase);
3606	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIBASE, &pDevIns->IBase);
3607
3608	/* HACK ALERT! Special access to the PDMPCIDEV structure of an ich9pcibridge
3609	instance (see PDMIICH9BRIDGEPDMPCIDEV_IID for details). */
3610	PDMIBASE_RETURN_INTERFACE(pszIID, PDMIICH9BRIDGEPDMPCIDEV, pDevIns->apPciDevs[0]);
3611	return NULL;
3612	}
3613
3614
3615	/**
3616	* @interface_method_impl{PDMDEVREG,pfnDestruct}
3617	*/
3618	static DECLCALLBACK(int) ich9pcibridgeR3Destruct(PPDMDEVINS pDevIns)
3619	{
3620	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
3621	if (pBus->papBridgesR3)
3622	{
3623	PDMDevHlpMMHeapFree(pDevIns, pBus->papBridgesR3);
3624	pBus->papBridgesR3 = NULL;
3625	}
3626	return VINF_SUCCESS;
3627	}
3628
3629
3630	/**
3631	* @interface_method_impl{PDMDEVREG,pfnConstruct}
3632	*/
3633	static DECLCALLBACK(int) ich9pcibridgeR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
3634	{
3635	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
3636
3637	/*
3638	* Validate and read configuration.
3639	*/
3640	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "ExpressEnabled\|ExpressPortType", "");
3641
3642	/* check if we're supposed to implement a PCIe bridge. */
3643	bool fExpress;
3644	int rc = CFGMR3QueryBoolDef(pCfg, "ExpressEnabled", &fExpress, false);
3645	AssertRCReturn(rc, PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to query boolean value \"ExpressEnabled\"")));
3646
3647	char szExpressPortType[80];
3648	rc = CFGMR3QueryStringDef(pCfg, "ExpressPortType", szExpressPortType, sizeof(szExpressPortType), "RootCmplxIntEp");
3649	AssertRCReturn(rc, PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: failed to read \"ExpressPortType\" as string")));
3650
3651	uint8_t const uExpressPortType = ich9pcibridgeR3GetExpressPortTypeFromString(szExpressPortType);
3652	Log(("PCI/bridge#%u: fR0Enabled=%RTbool fRCEnabled=%RTbool fExpress=%RTbool uExpressPortType=%u (%s)\n",
3653	iInstance, pDevIns->fR0Enabled, pDevIns->fRCEnabled, fExpress, uExpressPortType, szExpressPortType));
3654
3655	/*
3656	* Init data and register the PCI bus.
3657	*/
3658	pDevIns->IBase.pfnQueryInterface = ich9pcibridgeQueryInterface;
3659
3660	PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
3661	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
3662
3663	pBus->fTypePiix3 = false;
3664	pBus->fTypeIch9 = true;
3665	pBus->fPureBridge = true;
3666	pBusCC->pDevInsR3 = pDevIns;
3667	pBus->papBridgesR3 = (PPDMPCIDEV )PDMDevHlpMMHeapAllocZ(pDevIns, sizeof(PPDMPCIDEV) RT_ELEMENTS(pBus->apDevices));
3668	AssertLogRelReturn(pBus->papBridgesR3, VERR_NO_MEMORY);
3669
3670	PDMPCIBUSREGCC PciBusReg;
3671	PciBusReg.u32Version = PDM_PCIBUSREGCC_VERSION;
3672	PciBusReg.pfnRegisterR3 = devpcibridgeR3CommonRegisterDevice;
3673	PciBusReg.pfnRegisterMsiR3 = ich9pciRegisterMsi;
3674	PciBusReg.pfnIORegionRegisterR3 = devpciR3CommonIORegionRegister;
3675	PciBusReg.pfnInterceptConfigAccesses = devpciR3CommonInterceptConfigAccesses;
3676	PciBusReg.pfnConfigWrite = devpciR3CommonConfigWrite;
3677	PciBusReg.pfnConfigRead = devpciR3CommonConfigRead;
3678	PciBusReg.pfnSetIrqR3 = ich9pcibridgeSetIrq;
3679	PciBusReg.u32EndVersion = PDM_PCIBUSREGCC_VERSION;
3680	rc = PDMDevHlpPCIBusRegister(pDevIns, &PciBusReg, &pBusCC->pPciHlpR3, &pBus->iBus);
3681	if (RT_FAILURE(rc))
3682	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to register ourselves as a PCI Bus"));
3683	Assert(pBus->iBus == (uint32_t)iInstance + 1); /* Can be removed when adding support for multiple bridge implementations. */
3684	if (pBusCC->pPciHlpR3->u32Version != PDM_PCIHLPR3_VERSION)
3685	return PDMDevHlpVMSetError(pDevIns, VERR_VERSION_MISMATCH, RT_SRC_POS,
3686	N_("PCI helper version mismatch; got %#x expected %#x"),
3687	pBusCC->pPciHlpR3->u32Version, PDM_PCIHLPR3_VERSION);
3688
3689	LogRel(("PCI: Registered bridge instance #%u as PDM bus no %u.\n", iInstance, pBus->iBus));
3690
3691
3692	/* Disable default device locking. */
3693	rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
3694	AssertRCReturn(rc, rc);
3695
3696	/*
3697	* Fill in PCI configs and add them to the bus.
3698	*/
3699	PPDMPCIDEV pPciDev = pDevIns->apPciDevs[0];
3700	PDMPCIDEV_ASSERT_VALID(pDevIns, pPciDev);
3701
3702	PDMPciDevSetVendorId( pPciDev, 0x8086); /* Intel */
3703	if (fExpress)
3704	{
3705	PDMPciDevSetDeviceId(pPciDev, 0x29e1); /* 82X38/X48 Express Host-Primary PCI Express Bridge. */
3706	PDMPciDevSetRevisionId(pPciDev, 0x01);
3707	}
3708	else
3709	{
3710	PDMPciDevSetDeviceId(pPciDev, 0x2448); /* 82801 Mobile PCI bridge. */
3711	PDMPciDevSetRevisionId(pPciDev, 0xf2);
3712	}
3713	PDMPciDevSetClassSub( pPciDev, 0x04); /* pci2pci */
3714	PDMPciDevSetClassBase( pPciDev, 0x06); /* PCI_bridge */
3715	if (fExpress)
3716	PDMPciDevSetClassProg(pPciDev, 0x00); /* Normal decoding. */
3717	else
3718	PDMPciDevSetClassProg(pPciDev, 0x01); /* Supports subtractive decoding. */
3719	PDMPciDevSetHeaderType(pPciDev, 0x01); /* Single function device which adheres to the PCI-to-PCI bridge spec. */
3720	if (fExpress)
3721	{
3722	PDMPciDevSetCommand(pPciDev, VBOX_PCI_COMMAND_SERR);
3723	PDMPciDevSetStatus(pPciDev, VBOX_PCI_STATUS_CAP_LIST); /* Has capabilities. */
3724	PDMPciDevSetByte(pPciDev, VBOX_PCI_CACHE_LINE_SIZE, 8); /* 32 bytes */
3725	/* PCI Express */
3726	PDMPciDevSetByte(pPciDev, 0xa0 + 0, VBOX_PCI_CAP_ID_EXP); /* PCI_Express */
3727	PDMPciDevSetByte(pPciDev, 0xa0 + 1, 0); /* next */
3728	PDMPciDevSetWord(pPciDev, 0xa0 + 2,
3729	/* version */ 0x2
3730	\| (uExpressPortType << 4));
3731	PDMPciDevSetDWord(pPciDev, 0xa0 + 4, VBOX_PCI_EXP_DEVCAP_RBE); /* Device capabilities. */
3732	PDMPciDevSetWord(pPciDev, 0xa0 + 8, 0x0000); /* Device control. */
3733	PDMPciDevSetWord(pPciDev, 0xa0 + 10, 0x0000); /* Device status. */
3734	PDMPciDevSetDWord(pPciDev, 0xa0 + 12,
3735	/* Max Link Speed */ 2
3736	\| /* Maximum Link Width */ (16 << 4)
3737	\| /* Active State Power Management (ASPM) Sopport */ (0 << 10)
3738	\| VBOX_PCI_EXP_LNKCAP_LBNC
3739	\| /* Port Number / ((2 + iInstance) << 24)); / Link capabilities. */
3740	PDMPciDevSetWord(pPciDev, 0xa0 + 16, VBOX_PCI_EXP_LNKCTL_CLOCK); /* Link control. */
3741	PDMPciDevSetWord(pPciDev, 0xa0 + 18,
3742	/* Current Link Speed */ 2
3743	\| /* Negotiated Link Width */ (16 << 4)
3744	\| VBOX_PCI_EXP_LNKSTA_SL_CLK); /* Link status. */
3745	PDMPciDevSetDWord(pPciDev, 0xa0 + 20,
3746	/* Slot Power Limit Value */ (75 << 7)
3747	\| /* Physical Slot Number / (0 << 19)); / Slot capabilities. */
3748	PDMPciDevSetWord(pPciDev, 0xa0 + 24, 0x0000); /* Slot control. */
3749	PDMPciDevSetWord(pPciDev, 0xa0 + 26, 0x0000); /* Slot status. */
3750	PDMPciDevSetWord(pPciDev, 0xa0 + 28, 0x0000); /* Root control. */
3751	PDMPciDevSetWord(pPciDev, 0xa0 + 30, 0x0000); /* Root capabilities. */
3752	PDMPciDevSetDWord(pPciDev, 0xa0 + 32, 0x00000000); /* Root status. */
3753	PDMPciDevSetDWord(pPciDev, 0xa0 + 36, 0x00000000); /* Device capabilities 2. */
3754	PDMPciDevSetWord(pPciDev, 0xa0 + 40, 0x0000); /* Device control 2. */
3755	PDMPciDevSetWord(pPciDev, 0xa0 + 42, 0x0000); /* Device status 2. */
3756	PDMPciDevSetDWord(pPciDev, 0xa0 + 44,
3757	/* Supported Link Speeds Vector / (2 << 1)); / Link capabilities 2. */
3758	PDMPciDevSetWord(pPciDev, 0xa0 + 48,
3759	/* Target Link Speed / 2); / Link control 2. */
3760	PDMPciDevSetWord(pPciDev, 0xa0 + 50, 0x0000); /* Link status 2. */
3761	PDMPciDevSetDWord(pPciDev, 0xa0 + 52, 0x00000000); /* Slot capabilities 2. */
3762	PDMPciDevSetWord(pPciDev, 0xa0 + 56, 0x0000); /* Slot control 2. */
3763	PDMPciDevSetWord(pPciDev, 0xa0 + 58, 0x0000); /* Slot status 2. */
3764	PDMPciDevSetCapabilityList(pPciDev, 0xa0);
3765	}
3766	else
3767	{
3768	PDMPciDevSetCommand(pPciDev, 0x00);
3769	PDMPciDevSetStatus(pPciDev, 0x20); /* 66MHz Capable. */
3770	}
3771	PDMPciDevSetInterruptLine(pPciDev, 0x00); /* This device does not assert interrupts. */
3772
3773	/*
3774	* This device does not generate interrupts. Interrupt delivery from
3775	* devices attached to the bus is unaffected.
3776	*/
3777	PDMPciDevSetInterruptPin (pPciDev, 0x00);
3778
3779	if (fExpress)
3780	{
3781	/** @todo r=klaus set up the PCIe config space beyond the old 256 byte
3782	* limit, containing additional capability descriptors. */
3783	}
3784
3785	/*
3786	* Register this PCI bridge. The called function will take care on which bus we will get registered.
3787	*/
3788	rc = PDMDevHlpPCIRegisterEx(pDevIns, pPciDev, PDMPCIDEVREG_F_PCI_BRIDGE, PDMPCIDEVREG_DEV_NO_FIRST_UNUSED,
3789	PDMPCIDEVREG_FUN_NO_FIRST_UNUSED, "ich9pcibridge");
3790	AssertLogRelRCReturn(rc, rc);
3791
3792	pPciDev->Int.s.pfnBridgeConfigRead = ich9pcibridgeConfigRead;
3793	pPciDev->Int.s.pfnBridgeConfigWrite = ich9pcibridgeConfigWrite;
3794
3795	/*
3796	* Register SSM handlers. We use the same saved state version as for the host bridge
3797	* to make changes easier.
3798	*/
3799	rc = PDMDevHlpSSMRegisterEx(pDevIns, VBOX_ICH9PCI_SAVED_STATE_VERSION,
3800	sizeof(pBus) + 16128,
3801	"pgm" /* before */,
3802	NULL, NULL, NULL,
3803	NULL, ich9pcibridgeR3SaveExec, NULL,
3804	NULL, ich9pcibridgeR3LoadExec, NULL);
3805	AssertLogRelRCReturn(rc, rc);
3806
3807	return VINF_SUCCESS;
3808	}
3809
3810	#else /* !IN_RING3 */
3811
3812	/**
3813	* @interface_method_impl{PDMDEVREGR0,pfnConstruct}
3814	*/
3815	DECLCALLBACK(int) ich9pciRZConstruct(PPDMDEVINS pDevIns)
3816	{
3817	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
3818	PDEVPCIROOT pPciRoot = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
3819	PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
3820
3821	/* Mirror the ring-3 device lock disabling: */
3822	int rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
3823	AssertRCReturn(rc, rc);
3824
3825	/* Set up the RZ PCI bus callbacks: */
3826	PDMPCIBUSREGCC PciBusReg;
3827	PciBusReg.u32Version = PDM_PCIBUSREGCC_VERSION;
3828	PciBusReg.iBus = pPciRoot->PciBus.iBus;
3829	PciBusReg.pfnSetIrq = ich9pciSetIrq;
3830	PciBusReg.u32EndVersion = PDM_PCIBUSREGCC_VERSION;
3831	rc = PDMDevHlpPCIBusSetUpContext(pDevIns, &PciBusReg, &pBusCC->CTX_SUFF(pPciHlp));
3832	AssertRCReturn(rc, rc);
3833
3834	/* Set up I/O port callbacks, except for the magic port: */
3835	rc = PDMDevHlpIoPortSetUpContext(pDevIns, pPciRoot->hIoPortAddress, ich9pciIOPortAddressWrite, ich9pciIOPortAddressRead, NULL);
3836	AssertLogRelRCReturn(rc, rc);
3837
3838	rc = PDMDevHlpIoPortSetUpContext(pDevIns, pPciRoot->hIoPortData, ich9pciIOPortDataWrite, ich9pciIOPortDataRead, NULL);
3839	AssertLogRelRCReturn(rc, rc);
3840
3841	/* Set up MMIO callbacks: */
3842	if (pPciRoot->hMmioMcfg != NIL_IOMMMIOHANDLE)
3843	{
3844	rc = PDMDevHlpMmioSetUpContext(pDevIns, pPciRoot->hMmioMcfg, ich9pciMcfgMMIOWrite, ich9pciMcfgMMIORead, NULL /pvUser/);
3845	AssertLogRelRCReturn(rc, rc);
3846	}
3847
3848	return rc;
3849	}
3850
3851
3852	/**
3853	* @interface_method_impl{PDMDEVREGR0,pfnConstruct}
3854	*/
3855	DECLCALLBACK(int) ich9pcibridgeRZConstruct(PPDMDEVINS pDevIns)
3856	{
3857	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
3858	PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
3859	PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
3860
3861	/* Mirror the ring-3 device lock disabling: */
3862	int rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
3863	AssertRCReturn(rc, rc);
3864
3865	/* Set up the RZ PCI bus callbacks: */
3866	PDMPCIBUSREGCC PciBusReg;
3867	PciBusReg.u32Version = PDM_PCIBUSREGCC_VERSION;
3868	PciBusReg.iBus = pBus->iBus;
3869	PciBusReg.pfnSetIrq = ich9pcibridgeSetIrq;
3870	PciBusReg.u32EndVersion = PDM_PCIBUSREGCC_VERSION;
3871	rc = PDMDevHlpPCIBusSetUpContext(pDevIns, &PciBusReg, &pBusCC->CTX_SUFF(pPciHlp));
3872	AssertRCReturn(rc, rc);
3873
3874	return rc;
3875	}
3876
3877	#endif /* !IN_RING3 */
3878
3879	/**
3880	* The PCI bus device registration structure.
3881	*/
3882	const PDMDEVREG g_DevicePciIch9 =
3883	{
3884	/* .u32Version = */ PDM_DEVREG_VERSION,
3885	/* .uReserved0 = */ 0,
3886	/* .szName = */ "ich9pci",
3887	/* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS \| PDM_DEVREG_FLAGS_RZ \| PDM_DEVREG_FLAGS_NEW_STYLE,
3888	/* .fClass = */ PDM_DEVREG_CLASS_BUS_PCI,
3889	/* .cMaxInstances = */ 1,
3890	/* .uSharedVersion = */ 42,
3891	/* .cbInstanceShared = */ sizeof(DEVPCIROOT),
3892	/* .cbInstanceCC = */ sizeof(CTX_SUFF(DEVPCIBUS)),
3893	/* .cbInstanceRC = */ sizeof(DEVPCIBUSRC),
3894	/* .cMaxPciDevices = */ 1,
3895	/* .cMaxMsixVectors = */ 0,
3896	/* .pszDescription = */ "ICH9 PCI bridge",
3897	#if defined(IN_RING3)
3898	/* .pszRCMod = */ "VBoxDDRC.rc",
3899	/* .pszR0Mod = */ "VBoxDDR0.r0",
3900	/* .pfnConstruct = */ ich9pciR3Construct,
3901	/* .pfnDestruct = */ ich9pciR3Destruct,
3902	/* .pfnRelocate = */ NULL,
3903	/* .pfnMemSetup = */ NULL,
3904	/* .pfnPowerOn = */ NULL,
3905	/* .pfnReset = */ ich9pciReset,
3906	/* .pfnSuspend = */ NULL,
3907	/* .pfnResume = */ NULL,
3908	/* .pfnAttach = */ NULL,
3909	/* .pfnDetach = */ NULL,
3910	/* .pfnQueryInterface = */ NULL,
3911	/* .pfnInitComplete = */ NULL,
3912	/* .pfnPowerOff = */ NULL,
3913	/* .pfnSoftReset = */ NULL,
3914	/* .pfnReserved0 = */ NULL,
3915	/* .pfnReserved1 = */ NULL,
3916	/* .pfnReserved2 = */ NULL,
3917	/* .pfnReserved3 = */ NULL,
3918	/* .pfnReserved4 = */ NULL,
3919	/* .pfnReserved5 = */ NULL,
3920	/* .pfnReserved6 = */ NULL,
3921	/* .pfnReserved7 = */ NULL,
3922	#elif defined(IN_RING0)
3923	/* .pfnEarlyConstruct = */ NULL,
3924	/* .pfnConstruct = */ ich9pciRZConstruct,
3925	/* .pfnDestruct = */ NULL,
3926	/* .pfnFinalDestruct = */ NULL,
3927	/* .pfnRequest = */ NULL,
3928	/* .pfnReserved0 = */ NULL,
3929	/* .pfnReserved1 = */ NULL,
3930	/* .pfnReserved2 = */ NULL,
3931	/* .pfnReserved3 = */ NULL,
3932	/* .pfnReserved4 = */ NULL,
3933	/* .pfnReserved5 = */ NULL,
3934	/* .pfnReserved6 = */ NULL,
3935	/* .pfnReserved7 = */ NULL,
3936	#elif defined(IN_RC)
3937	/* .pfnConstruct = */ ich9pciRZConstruct,
3938	/* .pfnReserved0 = */ NULL,
3939	/* .pfnReserved1 = */ NULL,
3940	/* .pfnReserved2 = */ NULL,
3941	/* .pfnReserved3 = */ NULL,
3942	/* .pfnReserved4 = */ NULL,
3943	/* .pfnReserved5 = */ NULL,
3944	/* .pfnReserved6 = */ NULL,
3945	/* .pfnReserved7 = */ NULL,
3946	#else
3947	# error "Not in IN_RING3, IN_RING0 or IN_RC!"
3948	#endif
3949	/* .u32VersionEnd = */ PDM_DEVREG_VERSION
3950	};
3951
3952	/**
3953	* The device registration structure
3954	* for the PCI-to-PCI bridge.
3955	*/
3956	const PDMDEVREG g_DevicePciIch9Bridge =
3957	{
3958	/* .u32Version = */ PDM_DEVREG_VERSION,
3959	/* .uReserved0 = */ 0,
3960	/* .szName = */ "ich9pcibridge",
3961	/* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS \| PDM_DEVREG_FLAGS_RZ \| PDM_DEVREG_FLAGS_NEW_STYLE,
3962	/* .fClass = */ PDM_DEVREG_CLASS_BUS_PCI,
3963	/* .cMaxInstances = */ ~0U,
3964	/* .uSharedVersion = */ 42,
3965	/* .cbInstanceShared = */ sizeof(DEVPCIBUS),
3966	/* .cbInstanceCC = */ sizeof(CTX_SUFF(DEVPCIBUS)),
3967	/* .cbInstanceRC = */ 0,
3968	/* .cMaxPciDevices = */ 1,
3969	/* .cMaxMsixVectors = */ 0,
3970	/* .pszDescription = */ "ICH9 PCI to PCI bridge",
3971	#if defined(IN_RING3)
3972	/* .pszRCMod = */ "VBoxDDRC.rc",
3973	/* .pszR0Mod = */ "VBoxDDR0.r0",
3974	/* .pfnConstruct = */ ich9pcibridgeR3Construct,
3975	/* .pfnDestruct = */ ich9pcibridgeR3Destruct,
3976	/* .pfnRelocate = */ NULL,
3977	/* .pfnMemSetup = */ NULL,
3978	/* .pfnPowerOn = */ NULL,
3979	/* .pfnReset = / NULL, / Must be NULL, to make sure only bus driver handles reset */
3980	/* .pfnSuspend = */ NULL,
3981	/* .pfnResume = */ NULL,
3982	/* .pfnAttach = */ NULL,
3983	/* .pfnDetach = */ NULL,
3984	/* .pfnQueryInterface = */ NULL,
3985	/* .pfnInitComplete = */ NULL,
3986	/* .pfnPowerOff = */ NULL,
3987	/* .pfnSoftReset = */ NULL,
3988	/* .pfnReserved0 = */ NULL,
3989	/* .pfnReserved1 = */ NULL,
3990	/* .pfnReserved2 = */ NULL,
3991	/* .pfnReserved3 = */ NULL,
3992	/* .pfnReserved4 = */ NULL,
3993	/* .pfnReserved5 = */ NULL,
3994	/* .pfnReserved6 = */ NULL,
3995	/* .pfnReserved7 = */ NULL,
3996	#elif defined(IN_RING0)
3997	/* .pfnEarlyConstruct = */ NULL,
3998	/* .pfnConstruct = */ ich9pcibridgeRZConstruct,
3999	/* .pfnDestruct = */ NULL,
4000	/* .pfnFinalDestruct = */ NULL,
4001	/* .pfnRequest = */ NULL,
4002	/* .pfnReserved0 = */ NULL,
4003	/* .pfnReserved1 = */ NULL,
4004	/* .pfnReserved2 = */ NULL,
4005	/* .pfnReserved3 = */ NULL,
4006	/* .pfnReserved4 = */ NULL,
4007	/* .pfnReserved5 = */ NULL,
4008	/* .pfnReserved6 = */ NULL,
4009	/* .pfnReserved7 = */ NULL,
4010	#elif defined(IN_RC)
4011	/* .pfnConstruct = */ ich9pcibridgeRZConstruct,
4012	/* .pfnReserved0 = */ NULL,
4013	/* .pfnReserved1 = */ NULL,
4014	/* .pfnReserved2 = */ NULL,
4015	/* .pfnReserved3 = */ NULL,
4016	/* .pfnReserved4 = */ NULL,
4017	/* .pfnReserved5 = */ NULL,
4018	/* .pfnReserved6 = */ NULL,
4019	/* .pfnReserved7 = */ NULL,
4020	#else
4021	# error "Not in IN_RING3, IN_RING0 or IN_RC!"
4022	#endif
4023	/* .u32VersionEnd = */ PDM_DEVREG_VERSION
4024	};
4025

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source: vbox/trunk/src/VBox/Devices/Bus/DevPciIch9.cpp@ 87766

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