VirtualBox

source: vbox/trunk/src/VBox/Devices/Bus/DevPCI.cpp@ 93674

Last change on this file since 93674 was 93115, checked in by vboxsync, 3 years ago

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1/* $Id: DevPCI.cpp 93115 2022-01-01 11:31:46Z vboxsync $ */
2/** @file
3 * DevPCI - PCI BUS Device.
4 *
5 * @remarks New code shall be added to DevPciIch9.cpp as that will become
6 * the common PCI bus code soon. Don't fix code in both DevPCI.cpp
7 * and DevPciIch9.cpp when it's possible to just make the latter
8 * version common. Common code uses the 'devpci' prefix, is
9 * prototyped in DevPciInternal.h, and is defined in DevPciIch9.cpp.
10 */
11
12/*
13 * Copyright (C) 2006-2022 Oracle Corporation
14 *
15 * This file is part of VirtualBox Open Source Edition (OSE), as
16 * available from http://www.virtualbox.org. This file is free software;
17 * you can redistribute it and/or modify it under the terms of the GNU
18 * General Public License (GPL) as published by the Free Software
19 * Foundation, in version 2 as it comes in the "COPYING" file of the
20 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
21 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
22 * --------------------------------------------------------------------
23 *
24 * This code is based on:
25 *
26 * QEMU PCI bus manager
27 *
28 * Copyright (c) 2004 Fabrice Bellard
29 *
30 * Permission is hereby granted, free of charge, to any person obtaining a copy
31 * of this software and associated documentation files (the "Software"), to deal
32 * in the Software without restriction, including without limitation the rights
33 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
34 * copies of the Software, and to permit persons to whom the Software is
35 * furnished to do so, subject to the following conditions:
36 *
37 * The above copyright notice and this permission notice shall be included in
38 * all copies or substantial portions of the Software.
39 *
40 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
41 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
42 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
43 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
44 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
45 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
46 * THE SOFTWARE.
47 */
48
49
50/*********************************************************************************************************************************
51* Header Files *
52*********************************************************************************************************************************/
53#define LOG_GROUP LOG_GROUP_DEV_PCI
54#define PDMPCIDEV_INCLUDE_PRIVATE /* Hack to get pdmpcidevint.h included at the right point. */
55#include <VBox/vmm/pdmpcidev.h>
56#include <VBox/vmm/pdmdev.h>
57#include <VBox/vmm/mm.h>
58#include <iprt/asm.h>
59#include <iprt/assert.h>
60#include <iprt/string.h>
61
62#include "PciInline.h"
63#include "VBoxDD.h"
64#include "DevPciInternal.h"
65
66
67/*********************************************************************************************************************************
68* Defined Constants And Macros *
69*********************************************************************************************************************************/
70/** Saved state version of the PCI bus device. */
71#define VBOX_PCI_SAVED_STATE_VERSION VBOX_PCI_SAVED_STATE_VERSION_REGION_SIZES
72/** Adds I/O region types and sizes for dealing changes in resource regions. */
73#define VBOX_PCI_SAVED_STATE_VERSION_REGION_SIZES 4
74/** Before region sizes, the first named one.
75 * Looking at the code though, we support even older version. */
76#define VBOX_PCI_SAVED_STATE_VERSION_IRQ_STATES 3
77/** Notes whether we use the I/O APIC. */
78#define VBOX_PCI_SAVED_STATE_VERSION_USE_IO_APIC 2
79
80
81/*********************************************************************************************************************************
82* Internal Functions *
83*********************************************************************************************************************************/
84RT_C_DECLS_BEGIN
85
86static DECLCALLBACK(void) pcibridgeSetIrq(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTag);
87
88#ifdef IN_RING3
89DECLINLINE(PPDMPCIDEV) pciR3FindBridge(PDEVPCIBUS pBus, uint8_t iBus);
90#endif
91
92RT_C_DECLS_END
93
94#define DEBUG_PCI
95
96#define PCI_VENDOR_ID 0x00 /* 16 bits */
97#define PCI_DEVICE_ID 0x02 /* 16 bits */
98#define PCI_COMMAND 0x04 /* 16 bits */
99#define PCI_COMMAND_IO 0x01 /* Enable response in I/O space */
100#define PCI_COMMAND_MEMORY 0x02 /* Enable response in Memory space */
101#define PCI_CLASS_DEVICE 0x0a /* Device class */
102#define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
103#define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
104#define PCI_MIN_GNT 0x3e /* 8 bits */
105#define PCI_MAX_LAT 0x3f /* 8 bits */
106
107
108static VBOXSTRICTRC pci_data_write(PPDMDEVINS pDevIns, PDEVPCIROOT pGlobals, uint32_t addr, uint32_t u32Value, int cb)
109{
110 LogFunc(("addr=%08x u32Value=%08x cb=%d\n", pGlobals->uConfigReg, u32Value, cb));
111
112 if (!(pGlobals->uConfigReg & (1 << 31)))
113 return VINF_SUCCESS;
114 if ((pGlobals->uConfigReg & 0x3) != 0)
115 return VINF_SUCCESS;
116
117 uint8_t const iBus = (pGlobals->uConfigReg >> 16) & 0xff;
118 uint8_t const iDevice = (pGlobals->uConfigReg >> 8) & 0xff;
119#ifdef IN_RING3
120 uint32_t const config_addr = (pGlobals->uConfigReg & 0xfc) | (addr & 3);
121#endif
122 RT_UNTRUSTED_VALIDATED_FENCE(); /* paranoia */
123
124 VBOXSTRICTRC rcStrict = VINF_SUCCESS;
125 if (iBus != 0)
126 {
127 if (pGlobals->PciBus.cBridges)
128 {
129#ifdef IN_RING3 /** @todo do lookup in R0/RC too! */
130 PPDMPCIDEV pBridgeDevice = pciR3FindBridge(&pGlobals->PciBus, iBus);
131 if (pBridgeDevice)
132 {
133 AssertPtr(pBridgeDevice->Int.s.pfnBridgeConfigWrite);
134 rcStrict = pBridgeDevice->Int.s.pfnBridgeConfigWrite(pBridgeDevice->Int.s.CTX_SUFF(pDevIns), iBus,
135 iDevice, config_addr, cb, u32Value);
136 }
137#else
138 RT_NOREF(pDevIns, addr, u32Value, cb);
139 rcStrict = VINF_IOM_R3_IOPORT_WRITE;
140#endif
141 }
142 }
143 else
144 {
145 R3PTRTYPE(PDMPCIDEV *) pPciDev = pGlobals->PciBus.apDevices[iDevice];
146 if (pPciDev)
147 {
148#ifdef IN_RING3
149 LogFunc(("%s: addr=%02x u32Value=%08x cb=%d\n", pPciDev->pszNameR3, config_addr, u32Value, cb));
150 rcStrict = VINF_PDM_PCI_DO_DEFAULT;
151 if (pPciDev->Int.s.pfnConfigWrite)
152 rcStrict = pPciDev->Int.s.pfnConfigWrite(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev, config_addr, cb, u32Value);
153 if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
154 rcStrict = devpciR3CommonConfigWriteWorker(pDevIns, PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC),
155 pPciDev, config_addr, cb, u32Value);
156#else
157 rcStrict = VINF_IOM_R3_IOPORT_WRITE;
158#endif
159 }
160 }
161 return rcStrict;
162}
163
164static VBOXSTRICTRC pci_data_read(PDEVPCIROOT pGlobals, uint32_t addr, int cb, uint32_t *pu32Value)
165{
166 *pu32Value = UINT32_MAX;
167
168 if (!(pGlobals->uConfigReg & (1 << 31)))
169 return VINF_SUCCESS;
170 if ((pGlobals->uConfigReg & 0x3) != 0)
171 return VINF_SUCCESS;
172 uint8_t const iBus = (pGlobals->uConfigReg >> 16) & 0xff;
173 uint8_t const iDevice = (pGlobals->uConfigReg >> 8) & 0xff;
174#ifdef IN_RING3
175 uint32_t const config_addr = (pGlobals->uConfigReg & 0xfc) | (addr & 3);
176#endif
177 RT_UNTRUSTED_VALIDATED_FENCE();
178
179 VBOXSTRICTRC rcStrict = VINF_SUCCESS;
180 if (iBus != 0)
181 {
182 if (pGlobals->PciBus.cBridges)
183 {
184#ifdef IN_RING3 /** @todo do lookup in R0/RC too! */
185 PPDMPCIDEV pBridgeDevice = pciR3FindBridge(&pGlobals->PciBus, iBus);
186 if (pBridgeDevice)
187 {
188 AssertPtr(pBridgeDevice->Int.s.pfnBridgeConfigRead);
189 rcStrict = pBridgeDevice->Int.s.pfnBridgeConfigRead(pBridgeDevice->Int.s.CTX_SUFF(pDevIns),
190 iBus, iDevice, config_addr, cb, pu32Value);
191 }
192#else
193 RT_NOREF(addr, cb);
194 rcStrict = VINF_IOM_R3_IOPORT_READ;
195#endif
196 }
197 }
198 else
199 {
200 R3PTRTYPE(PDMPCIDEV *) pPciDev = pGlobals->PciBus.apDevices[iDevice];
201 if (pPciDev)
202 {
203#ifdef IN_RING3
204 rcStrict = VINF_PDM_PCI_DO_DEFAULT;
205 if (pPciDev->Int.s.pfnConfigRead)
206 rcStrict = pPciDev->Int.s.pfnConfigRead(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev, config_addr, cb, pu32Value);
207 if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
208 rcStrict = devpciR3CommonConfigReadWorker(pPciDev, config_addr, cb, pu32Value);
209 LogFunc(("%s: addr=%02x val=%08x cb=%d\n", pPciDev->pszNameR3, config_addr, *pu32Value, cb));
210#else
211 NOREF(cb);
212 rcStrict = VINF_IOM_R3_IOPORT_READ;
213#endif
214 }
215 }
216
217 return rcStrict;
218}
219
220
221
222/* return the global irq number corresponding to a given device irq
223 pin. We could also use the bus number to have a more precise
224 mapping.
225 This is the implementation note described in the PCI spec chapter 2.2.6 */
226static inline int pci_slot_get_pirq(uint8_t uDevFn, int irq_num)
227{
228 int slot_addend;
229 slot_addend = (uDevFn >> 3) - 1;
230 return (irq_num + slot_addend) & 3;
231}
232
233static inline int pci_slot_get_apic_pirq(uint8_t uDevFn, int irq_num)
234{
235 return (irq_num + (uDevFn >> 3)) & 7;
236}
237
238static inline int get_pci_irq_apic_level(PDEVPCIROOT pGlobals, int irq_num)
239{
240 return (pGlobals->auPciApicIrqLevels[irq_num] != 0);
241}
242
243static void apic_set_irq(PPDMDEVINS pDevIns, PDEVPCIBUS pBus, PDEVPCIBUSCC pBusCC,
244 uint8_t uDevFn, PDMPCIDEV *pPciDev, int irq_num1, int iLevel, int iAcpiIrq, uint32_t uTagSrc)
245{
246 /* This is only allowed to be called with a pointer to the host bus. */
247 AssertMsg(pBus->iBus == 0, ("iBus=%u\n", pBus->iBus));
248 uint16_t const uBusDevFn = PCIBDF_MAKE(pBus->iBus, uDevFn);
249
250 if (iAcpiIrq == -1) {
251 int apic_irq, apic_level;
252 PDEVPCIROOT pGlobals = DEVPCIBUS_2_DEVPCIROOT(pBus);
253 int irq_num = pci_slot_get_apic_pirq(uDevFn, irq_num1);
254
255 if ((iLevel & PDM_IRQ_LEVEL_HIGH) == PDM_IRQ_LEVEL_HIGH)
256 ASMAtomicIncU32(&pGlobals->auPciApicIrqLevels[irq_num]);
257 else if ((iLevel & PDM_IRQ_LEVEL_HIGH) == PDM_IRQ_LEVEL_LOW)
258 ASMAtomicDecU32(&pGlobals->auPciApicIrqLevels[irq_num]);
259
260 apic_irq = irq_num + 0x10;
261 apic_level = get_pci_irq_apic_level(pGlobals, irq_num);
262 Log3Func(("%s: irq_num1=%d level=%d apic_irq=%d apic_level=%d irq_num1=%d\n",
263 R3STRING(pPciDev->pszNameR3), irq_num1, iLevel, apic_irq, apic_level, irq_num));
264 pBusCC->CTX_SUFF(pPciHlp)->pfnIoApicSetIrq(pDevIns, uBusDevFn, apic_irq, apic_level, uTagSrc);
265
266 if ((iLevel & PDM_IRQ_LEVEL_FLIP_FLOP) == PDM_IRQ_LEVEL_FLIP_FLOP) {
267 ASMAtomicDecU32(&pGlobals->auPciApicIrqLevels[irq_num]);
268 pPciDev->Int.s.uIrqPinState = PDM_IRQ_LEVEL_LOW;
269 apic_level = get_pci_irq_apic_level(pGlobals, irq_num);
270 Log3Func(("%s: irq_num1=%d level=%d apic_irq=%d apic_level=%d irq_num1=%d (flop)\n",
271 R3STRING(pPciDev->pszNameR3), irq_num1, iLevel, apic_irq, apic_level, irq_num));
272 pBusCC->CTX_SUFF(pPciHlp)->pfnIoApicSetIrq(pDevIns, uBusDevFn, apic_irq, apic_level, uTagSrc);
273 }
274 } else {
275 Log3Func(("%s: irq_num1=%d level=%d iAcpiIrq=%d\n", R3STRING(pPciDev->pszNameR3), irq_num1, iLevel, iAcpiIrq));
276 pBusCC->CTX_SUFF(pPciHlp)->pfnIoApicSetIrq(pDevIns, uBusDevFn, iAcpiIrq, iLevel, uTagSrc);
277 }
278}
279
280DECLINLINE(int) get_pci_irq_level(PDEVPCIROOT pGlobals, int irq_num)
281{
282 return (pGlobals->Piix3.auPciLegacyIrqLevels[irq_num] != 0);
283}
284
285/**
286 * Set the IRQ for a PCI device on the host bus - shared by host bus and bridge.
287 *
288 * @param pDevIns The PDM device instance for the PCI bus.
289 * @param pGlobals Device instance of the host PCI bus.
290 * @param pBusCC Context specific data for the PCI bus.
291 * @param uDevFn The device number on the host bus which will raise the IRQ
292 * @param pPciDev The PCI device structure which raised the interrupt.
293 * @param iIrq IRQ number to set.
294 * @param iLevel IRQ level.
295 * @param uTagSrc The IRQ tag and source ID (for tracing).
296 * @remark uDevFn and pPciDev->uDevFn are not the same if the device is behind
297 * a bridge. In that case uDevFn will be the slot of the bridge which
298 * is needed to calculate the PIRQ value.
299 */
300static void pciSetIrqInternal(PPDMDEVINS pDevIns, PDEVPCIROOT pGlobals, PDEVPCIBUSCC pBusCC,
301 uint8_t uDevFn, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc)
302{
303 PDEVPCIBUS pBus = &pGlobals->PciBus;
304 uint8_t *pbCfg = pDevIns->apPciDevs[1]->abConfig;
305 const bool fIsAcpiDevice = pPciDev->abConfig[2] == 0x13 && pPciDev->abConfig[3] == 0x71;
306 /* If the two configuration space bytes at 0xde, 0xad are set to 0xbe, 0xef, a back door
307 * is opened to route PCI interrupts directly to the I/O APIC and bypass the PIC.
308 * See the \_SB_.PCI0._PRT method in vbox.dsl.
309 */
310 const bool fIsApicEnabled = pGlobals->fUseIoApic && pbCfg[0xde] == 0xbe && pbCfg[0xad] == 0xef;
311 int pic_irq, pic_level;
312
313 /* Check if the state changed. */
314 if (pPciDev->Int.s.uIrqPinState != iLevel)
315 {
316 pPciDev->Int.s.uIrqPinState = (iLevel & PDM_IRQ_LEVEL_HIGH);
317
318 /* Send interrupt to I/O APIC only. */
319 if (fIsApicEnabled)
320 {
321 if (fIsAcpiDevice)
322 /*
323 * ACPI needs special treatment since SCI is hardwired and
324 * should not be affected by PCI IRQ routing tables at the
325 * same time SCI IRQ is shared in PCI sense hence this
326 * kludge (i.e. we fetch the hardwired value from ACPIs
327 * PCI device configuration space).
328 */
329 apic_set_irq(pDevIns, pBus, pBusCC, uDevFn, pPciDev, -1, iLevel, pPciDev->abConfig[PCI_INTERRUPT_LINE], uTagSrc);
330 else
331 apic_set_irq(pDevIns, pBus, pBusCC, uDevFn, pPciDev, iIrq, iLevel, -1, uTagSrc);
332 return;
333 }
334
335 if (fIsAcpiDevice)
336 {
337 /* As per above treat ACPI in a special way */
338 pic_irq = pPciDev->abConfig[PCI_INTERRUPT_LINE];
339 pGlobals->Piix3.iAcpiIrq = pic_irq;
340 pGlobals->Piix3.iAcpiIrqLevel = iLevel & PDM_IRQ_LEVEL_HIGH;
341 }
342 else
343 {
344 int irq_num;
345 irq_num = pci_slot_get_pirq(uDevFn, iIrq);
346
347 if (pPciDev->Int.s.uIrqPinState == PDM_IRQ_LEVEL_HIGH)
348 ASMAtomicIncU32(&pGlobals->Piix3.auPciLegacyIrqLevels[irq_num]);
349 else if (pPciDev->Int.s.uIrqPinState == PDM_IRQ_LEVEL_LOW)
350 ASMAtomicDecU32(&pGlobals->Piix3.auPciLegacyIrqLevels[irq_num]);
351
352 /* now we change the pic irq level according to the piix irq mappings */
353 pic_irq = pbCfg[0x60 + irq_num];
354 if (pic_irq >= 16)
355 {
356 if ((iLevel & PDM_IRQ_LEVEL_FLIP_FLOP) == PDM_IRQ_LEVEL_FLIP_FLOP)
357 {
358 ASMAtomicDecU32(&pGlobals->Piix3.auPciLegacyIrqLevels[irq_num]);
359 pPciDev->Int.s.uIrqPinState = PDM_IRQ_LEVEL_LOW;
360 }
361
362 return;
363 }
364 }
365
366 /* the pic level is the logical OR of all the PCI irqs mapped to it */
367 pic_level = 0;
368 if (pic_irq == pbCfg[0x60])
369 pic_level |= get_pci_irq_level(pGlobals, 0); /* PIRQA */
370 if (pic_irq == pbCfg[0x61])
371 pic_level |= get_pci_irq_level(pGlobals, 1); /* PIRQB */
372 if (pic_irq == pbCfg[0x62])
373 pic_level |= get_pci_irq_level(pGlobals, 2); /* PIRQC */
374 if (pic_irq == pbCfg[0x63])
375 pic_level |= get_pci_irq_level(pGlobals, 3); /* PIRQD */
376 if (pic_irq == pGlobals->Piix3.iAcpiIrq)
377 pic_level |= pGlobals->Piix3.iAcpiIrqLevel;
378
379 Log3Func(("%s: iLevel=%d iIrq=%d pic_irq=%d pic_level=%d uTagSrc=%#x\n",
380 R3STRING(pPciDev->pszNameR3), iLevel, iIrq, pic_irq, pic_level, uTagSrc));
381 pBusCC->CTX_SUFF(pPciHlp)->pfnIsaSetIrq(pDevIns, pic_irq, pic_level, uTagSrc);
382
383 /** @todo optimize pci irq flip-flop some rainy day. */
384 if ((iLevel & PDM_IRQ_LEVEL_FLIP_FLOP) == PDM_IRQ_LEVEL_FLIP_FLOP)
385 pciSetIrqInternal(pDevIns, pGlobals, pBusCC, uDevFn, pPciDev, iIrq, PDM_IRQ_LEVEL_LOW, uTagSrc);
386 }
387}
388
389
390/**
391 * @interface_method_impl{PDMPCIBUSREGR3,pfnSetIrqR3}
392 */
393static DECLCALLBACK(void) pciSetIrq(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc)
394{
395 PDEVPCIROOT pBus = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
396 PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
397 LogFlow(("pciSetIrq: %p %u %u %#x\n", pPciDev, iIrq, iLevel, uTagSrc));
398 pciSetIrqInternal(pDevIns, pBus, pBusCC, pPciDev->uDevFn, pPciDev, iIrq, iLevel, uTagSrc);
399}
400
401#ifdef IN_RING3
402
403/**
404 * Finds a bridge on the bus which contains the destination bus.
405 *
406 * @return Pointer to the device instance data of the bus or
407 * NULL if no bridge was found.
408 * @param pBus Pointer to the bus to search on.
409 * @param iBus Destination bus number.
410 */
411DECLINLINE(PPDMPCIDEV) pciR3FindBridge(PDEVPCIBUS pBus, uint8_t iBus)
412{
413 /* Search for a fitting bridge. */
414 for (uint32_t iBridge = 0; iBridge < pBus->cBridges; iBridge++)
415 {
416 /*
417 * Examine secondary and subordinate bus number.
418 * If the target bus is in the range we pass the request on to the bridge.
419 */
420 PPDMPCIDEV pBridgeTemp = pBus->papBridgesR3[iBridge];
421 AssertMsg(pBridgeTemp && pciDevIsPci2PciBridge(pBridgeTemp),
422 ("Device is not a PCI bridge but on the list of PCI bridges\n"));
423
424 if ( iBus >= pBridgeTemp->abConfig[VBOX_PCI_SECONDARY_BUS]
425 && iBus <= pBridgeTemp->abConfig[VBOX_PCI_SUBORDINATE_BUS])
426 return pBridgeTemp;
427 }
428
429 /* Nothing found. */
430 return NULL;
431}
432
433static void pciR3Piix3Reset(PPDMPCIDEV pPiix3PciDev)
434{
435 uint8_t *pci_conf = pPiix3PciDev->abConfig;
436
437 pci_conf[0x04] = 0x07; /* master, memory and I/O */
438 pci_conf[0x05] = 0x00;
439 pci_conf[0x06] = 0x00;
440 pci_conf[0x07] = 0x02; /* PCI_status_devsel_medium */
441 pci_conf[0x4c] = 0x4d;
442 pci_conf[0x4e] = 0x03;
443 pci_conf[0x4f] = 0x00;
444 pci_conf[0x60] = 0x80;
445 pci_conf[0x69] = 0x02;
446 pci_conf[0x70] = 0x80;
447 pci_conf[0x76] = 0x0c;
448 pci_conf[0x77] = 0x0c;
449 pci_conf[0x78] = 0x02;
450 pci_conf[0x79] = 0x00;
451 pci_conf[0x80] = 0x00;
452 pci_conf[0x82] = 0x02; /* Get rid of the Linux guest "Enabling Passive Release" PCI quirk warning. */
453 pci_conf[0xa0] = 0x08;
454 pci_conf[0xa2] = 0x00;
455 pci_conf[0xa3] = 0x00;
456 pci_conf[0xa4] = 0x00;
457 pci_conf[0xa5] = 0x00;
458 pci_conf[0xa6] = 0x00;
459 pci_conf[0xa7] = 0x00;
460 pci_conf[0xa8] = 0x0f;
461 pci_conf[0xaa] = 0x00;
462 pci_conf[0xab] = 0x00;
463 pci_conf[0xac] = 0x00;
464 pci_conf[0xae] = 0x00;
465}
466
467/* host irqs corresponding to PCI irqs A-D */
468static const uint8_t pci_irqs[4] = { 11, 10, 9, 11 }; /* bird: added const */
469
470static void pci_bios_init_device(PPDMDEVINS pDevIns, PDEVPCIROOT pGlobals, PDEVPCIBUS pBus,
471 PPDMPCIDEV pPciDev, uint8_t cBridgeDepth, uint8_t *paBridgePositions)
472{
473 uint32_t uPciBiosSpecialVRAM = 0xe0000000;
474 uint32_t *paddr;
475 int pin, pic_irq;
476 uint16_t devclass, vendor_id, device_id;
477
478 devclass = devpciR3GetWord(pPciDev, PCI_CLASS_DEVICE);
479 vendor_id = devpciR3GetWord(pPciDev, PCI_VENDOR_ID);
480 device_id = devpciR3GetWord(pPciDev, PCI_DEVICE_ID);
481
482 /* Check if device is present. */
483 if (vendor_id != 0xffff)
484 {
485 switch (devclass)
486 {
487 case 0x0101:
488 if ( (vendor_id == 0x8086)
489 && (device_id == 0x7010 || device_id == 0x7111 || device_id == 0x269e))
490 {
491 /* PIIX3, PIIX4 or ICH6 IDE */
492 devpciR3SetWord(pDevIns, pPciDev, 0x40, 0x8011); /* enable IDE0 + fast timing */
493 devpciR3SetWord(pDevIns, pPciDev, 0x42, 0x8011); /* enable IDE1 + fast timing */
494 goto default_map;
495 }
496 else
497 {
498 /* IDE: we map it as in ISA mode */
499 devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, 0, 0x1f0);
500 devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, 1, 0x3f4);
501 devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, 2, 0x170);
502 devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, 3, 0x374);
503 devpciR3SetWord(pDevIns, pPciDev, PCI_COMMAND,
504 devpciR3GetWord(pPciDev, PCI_COMMAND)
505 | PCI_COMMAND_IOACCESS);
506 }
507 break;
508 case 0x0800:
509 /* PIC */
510 vendor_id = devpciR3GetWord(pPciDev, PCI_VENDOR_ID);
511 device_id = devpciR3GetWord(pPciDev, PCI_DEVICE_ID);
512 if (vendor_id == 0x1014)
513 {
514 /* IBM */
515 if (device_id == 0x0046 || device_id == 0xFFFF)
516 {
517 /* MPIC & MPIC2 */
518 devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, 0, 0x80800000 + 0x00040000);
519 devpciR3SetWord(pDevIns, pPciDev, PCI_COMMAND,
520 devpciR3GetWord(pPciDev, PCI_COMMAND)
521 | PCI_COMMAND_MEMACCESS);
522 }
523 }
524 break;
525 case 0xff00:
526 if ( (vendor_id == 0x0106b)
527 && (device_id == 0x0017 || device_id == 0x0022))
528 {
529 /* macio bridge */
530 devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, 0, 0x80800000);
531 devpciR3SetWord(pDevIns, pPciDev, PCI_COMMAND,
532 devpciR3GetWord(pPciDev, PCI_COMMAND)
533 | PCI_COMMAND_MEMACCESS);
534 }
535 break;
536 case 0x0604:
537 {
538 /* Init PCI-to-PCI bridge. */
539 devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_PRIMARY_BUS, pBus->iBus);
540
541 AssertMsg(pGlobals->uPciBiosBus < 255, ("Too many bridges on the bus\n"));
542 pGlobals->uPciBiosBus++;
543 devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_SECONDARY_BUS, pGlobals->uPciBiosBus);
544 devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_SUBORDINATE_BUS, 0xff); /* Temporary until we know how many other bridges are behind this one. */
545
546 /* Add position of this bridge into the array. */
547 paBridgePositions[cBridgeDepth+1] = (pPciDev->uDevFn >> 3);
548
549 /*
550 * The I/O range for the bridge must be aligned to a 4KB boundary.
551 * This does not change anything really as the access to the device is not going
552 * through the bridge but we want to be compliant to the spec.
553 */
554 if ((pGlobals->uPciBiosIo % _4K) != 0)
555 pGlobals->uPciBiosIo = RT_ALIGN_32(pGlobals->uPciBiosIo, _4K);
556 LogFunc(("Aligned I/O start address. New address %#x\n", pGlobals->uPciBiosIo));
557 devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_IO_BASE, (pGlobals->uPciBiosIo >> 8) & 0xf0);
558
559 /* The MMIO range for the bridge must be aligned to a 1MB boundary. */
560 if ((pGlobals->uPciBiosMmio % _1M) != 0)
561 pGlobals->uPciBiosMmio = RT_ALIGN_32(pGlobals->uPciBiosMmio, _1M);
562 LogFunc(("Aligned MMIO start address. New address %#x\n", pGlobals->uPciBiosMmio));
563 devpciR3SetWord(pDevIns, pPciDev, VBOX_PCI_MEMORY_BASE, (pGlobals->uPciBiosMmio >> 16) & UINT32_C(0xffff0));
564
565 /* Save values to compare later to. */
566 uint32_t u32IoAddressBase = pGlobals->uPciBiosIo;
567 uint32_t u32MMIOAddressBase = pGlobals->uPciBiosMmio;
568
569 /* Init devices behind the bridge and possibly other bridges as well. */
570 PDEVPCIBUS pChildBus = PDMINS_2_DATA(pPciDev->Int.s.CTX_SUFF(pDevIns), PDEVPCIBUS);
571 for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pChildBus->apDevices); uDevFn++)
572 {
573 PPDMPCIDEV pChildPciDev = pChildBus->apDevices[uDevFn];
574 if (pChildPciDev)
575 pci_bios_init_device(pDevIns, pGlobals, pChildBus, pChildPciDev, cBridgeDepth + 1, paBridgePositions);
576 }
577
578 /* The number of bridges behind the this one is now available. */
579 devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_SUBORDINATE_BUS, pGlobals->uPciBiosBus);
580
581 /*
582 * Set I/O limit register. If there is no device with I/O space behind the bridge
583 * we set a lower value than in the base register.
584 * The result with a real bridge is that no I/O transactions are passed to the secondary
585 * interface. Again this doesn't really matter here but we want to be compliant to the spec.
586 */
587 if ((u32IoAddressBase != pGlobals->uPciBiosIo) && ((pGlobals->uPciBiosIo % _4K) != 0))
588 {
589 /* The upper boundary must be one byte less than a 4KB boundary. */
590 pGlobals->uPciBiosIo = RT_ALIGN_32(pGlobals->uPciBiosIo, _4K);
591 }
592 devpciR3SetByte(pDevIns, pPciDev, VBOX_PCI_IO_LIMIT, ((pGlobals->uPciBiosIo >> 8) & 0xf0) - 1);
593
594 /* Same with the MMIO limit register but with 1MB boundary here. */
595 if ((u32MMIOAddressBase != pGlobals->uPciBiosMmio) && ((pGlobals->uPciBiosMmio % _1M) != 0))
596 {
597 /* The upper boundary must be one byte less than a 1MB boundary. */
598 pGlobals->uPciBiosMmio = RT_ALIGN_32(pGlobals->uPciBiosMmio, _1M);
599 }
600 devpciR3SetWord(pDevIns, pPciDev, VBOX_PCI_MEMORY_LIMIT, ((pGlobals->uPciBiosMmio >> 16) & UINT32_C(0xfff0)) - 1);
601
602 /*
603 * Set the prefetch base and limit registers. We currently have no device with a prefetchable region
604 * which may be behind a bridge. That's why it is unconditionally disabled here atm by writing a higher value into
605 * the base register than in the limit register.
606 */
607 devpciR3SetWord(pDevIns, pPciDev, VBOX_PCI_PREF_MEMORY_BASE, 0xfff0);
608 devpciR3SetWord(pDevIns, pPciDev, VBOX_PCI_PREF_MEMORY_LIMIT, 0x0);
609 devpciR3SetDWord(pDevIns, pPciDev, VBOX_PCI_PREF_BASE_UPPER32, 0x00);
610 devpciR3SetDWord(pDevIns, pPciDev, VBOX_PCI_PREF_LIMIT_UPPER32, 0x00);
611 break;
612 }
613 default:
614 default_map:
615 {
616 /* default memory mappings */
617 bool fActiveMemRegion = false;
618 bool fActiveIORegion = false;
619 /*
620 * PCI_NUM_REGIONS is 7 because of the rom region but there are only 6 base address register defined by the PCI spec.
621 * Leaving only PCI_NUM_REGIONS would cause reading another and enabling a memory region which does not exist.
622 */
623 for (unsigned i = 0; i < (PCI_NUM_REGIONS-1); i++)
624 {
625 uint32_t u32Size;
626 uint8_t u8ResourceType;
627 uint32_t u32Address = 0x10 + i * 4;
628
629 /* Calculate size. */
630 u8ResourceType = devpciR3GetByte(pPciDev, u32Address);
631 devpciR3SetDWord(pDevIns, pPciDev, u32Address, UINT32_C(0xffffffff));
632 u32Size = devpciR3GetDWord(pPciDev, u32Address);
633 bool fIsPio = ((u8ResourceType & PCI_COMMAND_IOACCESS) == PCI_COMMAND_IOACCESS);
634 /* Clear resource information depending on resource type. */
635 if (fIsPio) /* I/O */
636 u32Size &= ~(0x01);
637 else /* MMIO */
638 u32Size &= ~(0x0f);
639
640 /*
641 * Invert all bits and add 1 to get size of the region.
642 * (From PCI implementation note)
643 */
644 if (fIsPio && (u32Size & UINT32_C(0xffff0000)) == 0)
645 u32Size = (~(u32Size | UINT32_C(0xffff0000))) + 1;
646 else
647 u32Size = (~u32Size) + 1;
648
649 Log2Func(("Size of region %u for device %d on bus %d is %u\n", i, pPciDev->uDevFn, pBus->iBus, u32Size));
650
651 if (u32Size)
652 {
653 if (fIsPio)
654 paddr = &pGlobals->uPciBiosIo;
655 else
656 {
657 paddr = &pGlobals->uPciBiosMmio;
658 if (devclass == 0x0300)
659 {
660 /*
661 * Because legacy VGA I/O ports are implicitly decoded
662 * by a VGA class device without needing a BAR, we must
663 * enable I/O decoding for such devices.
664 */
665 fActiveIORegion = true;
666
667 if (vendor_id == 0x80ee || vendor_id == 0x15ad)
668 {
669 bool fPrefetch = (u8ResourceType & ((uint8_t)(PCI_ADDRESS_SPACE_MEM_PREFETCH | PCI_ADDRESS_SPACE_IO)))
670 == PCI_ADDRESS_SPACE_MEM_PREFETCH;
671 /* VGA: map frame buffer to default Bochs VBE address. Only
672 * needed for legacy guest drivers. */
673 if (fPrefetch)
674 paddr = &uPciBiosSpecialVRAM;
675 }
676 }
677 }
678 uint32_t uNew = *paddr;
679 uNew = (uNew + u32Size - 1) & ~(u32Size - 1);
680 if (fIsPio)
681 uNew &= UINT32_C(0xffff);
682 /* Unconditionally exclude I/O-APIC/HPET/ROM. Pessimistic, but better than causing a mess. */
683 if (!uNew || (uNew <= UINT32_C(0xffffffff) && uNew + u32Size - 1 >= UINT32_C(0xfec00000)))
684 {
685 LogRel(("PCI: no space left for BAR%u of device %u/%u/%u (vendor=%#06x device=%#06x)\n",
686 i, pBus->iBus, pPciDev->uDevFn >> 3, pPciDev->uDevFn & 7, vendor_id, device_id)); /** @todo make this a VM start failure later. */
687 /* Undo the mapping mess caused by the size probing. */
688 devpciR3SetDWord(pDevIns, pPciDev, u32Address, UINT32_C(0));
689 }
690 else
691 {
692 LogFunc(("Start address of %s region %u is %#x\n", (fIsPio ? "I/O" : "MMIO"), i, uNew));
693 devpciR3BiosInitSetRegionAddress(pDevIns, pBus, pPciDev, i, uNew);
694 if (fIsPio)
695 fActiveIORegion = true;
696 else
697 fActiveMemRegion = true;
698 *paddr = uNew + u32Size;
699 Log2Func(("New address is %#x\n", *paddr));
700 }
701 }
702 }
703
704 /* Update the command word appropriately. */
705 devpciR3SetWord(pDevIns, pPciDev, PCI_COMMAND,
706 devpciR3GetWord(pPciDev, PCI_COMMAND)
707 | (fActiveMemRegion ? PCI_COMMAND_MEMACCESS : 0)
708 | (fActiveIORegion ? PCI_COMMAND_IOACCESS : 0));
709
710 break;
711 }
712 }
713
714 /* map the interrupt */
715 pin = devpciR3GetByte(pPciDev, PCI_INTERRUPT_PIN);
716 if (pin != 0)
717 {
718 uint8_t uBridgeDevFn = pPciDev->uDevFn;
719 pin--;
720
721 /* We need to go up to the host bus to see which irq this device will assert there. */
722 while (cBridgeDepth != 0)
723 {
724 /* Get the pin the device would assert on the bridge. */
725 pin = ((uBridgeDevFn >> 3) + pin) & 3;
726 uBridgeDevFn = paBridgePositions[cBridgeDepth];
727 cBridgeDepth--;
728 }
729
730 pin = pci_slot_get_pirq(pPciDev->uDevFn, pin);
731 pic_irq = pci_irqs[pin];
732 devpciR3SetByte(pDevIns, pPciDev, PCI_INTERRUPT_LINE, pic_irq);
733 }
734 }
735}
736
737/**
738 * Worker for Fake PCI BIOS config, triggered by magic port access by BIOS.
739 *
740 * @returns VBox status code.
741 *
742 * @param pDevIns i440FX device instance.
743 */
744static int pciR3FakePCIBIOS(PPDMDEVINS pDevIns)
745{
746 uint8_t elcr[2] = {0, 0};
747 PDEVPCIROOT pGlobals = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
748
749 LogRel(("PCI: Setting up resources and interrupts\n"));
750
751 /*
752 * Set the start addresses.
753 */
754 pGlobals->uPciBiosBus = 0;
755 pGlobals->uPciBiosIo = 0xd000;
756 pGlobals->uPciBiosMmio = UINT32_C(0xf0000000);
757
758 /*
759 * Activate IRQ mappings.
760 */
761 PPDMPCIDEV pPIIX3 = pDevIns->apPciDevs[1];
762 for (unsigned i = 0; i < 4; i++)
763 {
764 uint8_t irq = pci_irqs[i];
765 /* Set to trigger level. */
766 elcr[irq >> 3] |= (1 << (irq & 7));
767 /* Activate irq remapping in PIIX3. */
768 devpciR3SetByte(pDevIns, pPIIX3, 0x60 + i, irq);
769 }
770
771 /* Tell to the PIC. */
772 /** @todo r=aeichner We should really move this to the BIOS code and get rid of this fake PCI BIOS thing,
773 * DevPciIch9.cpp lacks this code and has a todo for this.
774 */
775 VBOXSTRICTRC rcStrict = pDevIns->pHlpR3->pfnIoPortWrite(pDevIns, 0x4d0, elcr[0], sizeof(uint8_t));
776 if (rcStrict == VINF_SUCCESS)
777 rcStrict = pDevIns->pHlpR3->pfnIoPortWrite(pDevIns, 0x4d1, elcr[1], sizeof(uint8_t));
778 if (rcStrict != VINF_SUCCESS)
779 {
780 AssertMsgFailed(("Writing to PIC failed! rcStrict=%Rrc\n", VBOXSTRICTRC_VAL(rcStrict)));
781 return RT_SUCCESS(rcStrict) ? VERR_INTERNAL_ERROR : VBOXSTRICTRC_VAL(rcStrict);
782 }
783
784 /*
785 * Init the devices.
786 */
787 PDEVPCIBUS pBus = &pGlobals->PciBus;
788 for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
789 {
790 PPDMPCIDEV pPciDev = pBus->apDevices[uDevFn];
791 if (pPciDev)
792 {
793 Log2(("PCI: Initializing device %d (%#x)\n", uDevFn, 0x80000000 | (uDevFn << 8)));
794 uint8_t aBridgePositions[256];
795 RT_ZERO(aBridgePositions);
796 pci_bios_init_device(pDevIns, pGlobals, pBus, pPciDev, 0, aBridgePositions);
797 }
798 }
799
800 return VINF_SUCCESS;
801}
802
803#endif /* IN_RING3 */
804
805
806/* -=-=-=-=-=- I/O ports -=-=-=-=-=- */
807
808/**
809 * @callback_method_impl{FNIOMIOPORTNEWOUT, PCI address}
810 */
811static DECLCALLBACK(VBOXSTRICTRC)
812pciIOPortAddressWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
813{
814 LogFunc(("offPort=%#x u32=%#x cb=%d\n", offPort, u32, cb));
815 Assert(offPort == 0); RT_NOREF2(offPort, pvUser);
816 if (cb == 4)
817 {
818 PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
819 PCI_LOCK_RET(pDevIns, VINF_IOM_R3_IOPORT_WRITE);
820 pThis->uConfigReg = u32 & ~3; /* Bits 0-1 are reserved and we silently clear them */
821 PCI_UNLOCK(pDevIns);
822 }
823 /* else: 440FX does "pass through to the bus" for other writes, what ever that means.
824 * Linux probes for cmd640 using byte writes/reads during ide init. We'll just ignore it. */
825 return VINF_SUCCESS;
826}
827
828
829/**
830 * @callback_method_impl{FNIOMIOPORTNEWIN, PCI address}
831 */
832static DECLCALLBACK(VBOXSTRICTRC)
833pciIOPortAddressRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb)
834{
835 Assert(offPort == 0); RT_NOREF2(offPort, pvUser);
836 if (cb == 4)
837 {
838 PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
839 PCI_LOCK_RET(pDevIns, VINF_IOM_R3_IOPORT_READ);
840 *pu32 = pThis->uConfigReg;
841 PCI_UNLOCK(pDevIns);
842 LogFunc(("offPort=%#x cb=%d -> %#x\n", offPort, cb, *pu32));
843 return VINF_SUCCESS;
844 }
845 /* else: 440FX does "pass through to the bus" for other writes, what ever that means.
846 * Linux probes for cmd640 using byte writes/reads during ide init. We'll just ignore it. */
847 LogFunc(("offPort=%#x cb=%d VERR_IOM_IOPORT_UNUSED\n", offPort, cb));
848 return VERR_IOM_IOPORT_UNUSED;
849}
850
851
852/**
853 * @callback_method_impl{FNIOMIOPORTNEWOUT, PCI data}
854 */
855static DECLCALLBACK(VBOXSTRICTRC)
856pciIOPortDataWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
857{
858 LogFunc(("offPort=%#x u32=%#x cb=%d\n", offPort, u32, cb));
859 Assert(offPort < 4); NOREF(pvUser);
860 VBOXSTRICTRC rcStrict = VINF_SUCCESS;
861 if (!(offPort % cb))
862 {
863 PCI_LOCK_RET(pDevIns, VINF_IOM_R3_IOPORT_WRITE);
864 rcStrict = pci_data_write(pDevIns, PDMINS_2_DATA(pDevIns, PDEVPCIROOT), offPort, u32, cb);
865 PCI_UNLOCK(pDevIns);
866 }
867 else
868 AssertMsgFailed(("Write to port %#x u32=%#x cb=%d\n", offPort, u32, cb));
869 return rcStrict;
870}
871
872
873/**
874 * @callback_method_impl{FNIOMIOPORTNEWIN, PCI data}
875 */
876static DECLCALLBACK(VBOXSTRICTRC)
877pciIOPortDataRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb)
878{
879 Assert(offPort < 4); NOREF(pvUser);
880 if (!(offPort % cb))
881 {
882 PCI_LOCK_RET(pDevIns, VINF_IOM_R3_IOPORT_READ);
883 VBOXSTRICTRC rcStrict = pci_data_read(PDMINS_2_DATA(pDevIns, PDEVPCIROOT), offPort, cb, pu32);
884 PCI_UNLOCK(pDevIns);
885 LogFunc(("offPort=%#x cb=%#x -> %#x (%Rrc)\n", offPort, cb, *pu32, VBOXSTRICTRC_VAL(rcStrict)));
886 return rcStrict;
887 }
888 AssertMsgFailed(("Read from port %#x cb=%d\n", offPort, cb));
889 return VERR_IOM_IOPORT_UNUSED;
890}
891
892#ifdef IN_RING3
893
894/**
895 * @callback_method_impl{FNIOMIOPORTNEWOUT, PCI data}
896 */
897static DECLCALLBACK(VBOXSTRICTRC)
898pciR3IOPortMagicPCIWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
899{
900 Assert(offPort == 0); RT_NOREF2(pvUser, offPort);
901 LogFunc(("offPort=%#x u32=%#x cb=%d\n", offPort, u32, cb));
902 if (cb == 4)
903 {
904 if (u32 == UINT32_C(19200509)) // Richard Adams - Note! In decimal rather hex.
905 {
906 int rc = pciR3FakePCIBIOS(pDevIns);
907 AssertRC(rc);
908 }
909 }
910
911 return VINF_SUCCESS;
912}
913
914/**
915 * @callback_method_impl{FNIOMIOPORTNEWIN, PCI data}
916 */
917static DECLCALLBACK(VBOXSTRICTRC)
918pciR3IOPortMagicPCIRead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t *pu32, unsigned cb)
919{
920 Assert(offPort == 0); RT_NOREF5(pDevIns, pvUser, offPort, pu32, cb);
921 LogFunc(("offPort=%#x cb=%d VERR_IOM_IOPORT_UNUSED\n", offPort, cb));
922 return VERR_IOM_IOPORT_UNUSED;
923}
924
925
926/* -=-=-=-=-=- Saved state -=-=-=-=-=- */
927
928/**
929 * Common worker for pciR3SaveExec and pcibridgeR3SaveExec.
930 *
931 * @returns VBox status code.
932 * @param pHlp The device helpers.
933 * @param pBus The bus to save.
934 * @param pSSM The saved state handle.
935 */
936static int pciR3CommonSaveExec(PCPDMDEVHLPR3 pHlp, PDEVPCIBUS pBus, PSSMHANDLE pSSM)
937{
938 /*
939 * Iterate thru all the devices.
940 */
941 for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
942 {
943 PPDMPCIDEV pDev = pBus->apDevices[uDevFn];
944 if (pDev)
945 {
946 pHlp->pfnSSMPutU32(pSSM, uDevFn);
947 pHlp->pfnSSMPutMem(pSSM, pDev->abConfig, 256); /* Only save 256 bytes here! */
948
949 pHlp->pfnSSMPutS32(pSSM, pDev->Int.s.uIrqPinState);
950
951 /* Save the type an size of all the regions. */
952 for (uint32_t iRegion = 0; iRegion < VBOX_PCI_NUM_REGIONS; iRegion++)
953 {
954 pHlp->pfnSSMPutU8(pSSM, pDev->Int.s.aIORegions[iRegion].type);
955 pHlp->pfnSSMPutU64(pSSM, pDev->Int.s.aIORegions[iRegion].size);
956 }
957 }
958 }
959 return pHlp->pfnSSMPutU32(pSSM, UINT32_MAX); /* terminator */
960}
961
962
963/**
964 * @callback_method_impl{FNSSMDEVSAVEEXEC}
965 */
966static DECLCALLBACK(int) pciR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
967{
968 PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
969 PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
970
971 /*
972 * Bus state data.
973 */
974 pHlp->pfnSSMPutU32(pSSM, pThis->uConfigReg);
975 pHlp->pfnSSMPutBool(pSSM, pThis->fUseIoApic);
976
977 /*
978 * Save IRQ states.
979 */
980 for (unsigned i = 0; i < RT_ELEMENTS(pThis->Piix3.auPciLegacyIrqLevels); i++)
981 pHlp->pfnSSMPutU32(pSSM, pThis->Piix3.auPciLegacyIrqLevels[i]);
982 for (unsigned i = 0; i < RT_ELEMENTS(pThis->auPciApicIrqLevels); i++)
983 pHlp->pfnSSMPutU32(pSSM, pThis->auPciApicIrqLevels[i]);
984
985 pHlp->pfnSSMPutU32(pSSM, pThis->Piix3.iAcpiIrqLevel);
986 pHlp->pfnSSMPutS32(pSSM, pThis->Piix3.iAcpiIrq);
987
988 pHlp->pfnSSMPutU32(pSSM, UINT32_MAX); /* separator */
989
990 /*
991 * Join paths with pcibridgeR3SaveExec.
992 */
993 return pciR3CommonSaveExec(pHlp, &pThis->PciBus, pSSM);
994}
995
996
997/**
998 * Common worker for pciR3LoadExec and pcibridgeR3LoadExec.
999 *
1000 * @returns VBox status code.
1001 * @param pDevIns The device instance.
1002 * @param pBus The bus which data is being loaded.
1003 * @param pSSM The saved state handle.
1004 * @param uVersion The data version.
1005 * @param uPass The pass.
1006 */
1007static int pciR3CommonLoadExec(PPDMDEVINS pDevIns, PDEVPCIBUS pBus, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1008{
1009 PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
1010 uint32_t u32;
1011 int rc;
1012
1013 Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
1014
1015 /*
1016 * Iterate thru all the devices and write 0 to the COMMAND register so
1017 * that all the memory is unmapped before we start restoring the saved
1018 * mapping locations.
1019 *
1020 * The register value is restored afterwards so we can do proper
1021 * LogRels in devpciR3CommonRestoreConfig.
1022 */
1023 for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
1024 {
1025 PPDMPCIDEV pDev = pBus->apDevices[uDevFn];
1026 if (pDev)
1027 {
1028 uint16_t u16 = PCIDevGetCommand(pDev);
1029 devpciR3SetCfg(pDevIns, pDev, VBOX_PCI_COMMAND, 0 /*u32Value*/, 2 /*cb*/);
1030 PCIDevSetCommand(pDev, u16);
1031 Assert(PCIDevGetCommand(pDev) == u16);
1032 }
1033 }
1034
1035 /*
1036 * Iterate all the devices.
1037 */
1038 for (uint32_t uDevFn = 0;; uDevFn++)
1039 {
1040 /* index / terminator */
1041 rc = pHlp->pfnSSMGetU32(pSSM, &u32);
1042 if (RT_FAILURE(rc))
1043 return rc;
1044 if (u32 == UINT32_MAX)
1045 break;
1046 if ( u32 >= RT_ELEMENTS(pBus->apDevices)
1047 || u32 < uDevFn)
1048 {
1049 AssertMsgFailed(("u32=%#x uDevFn=%#x\n", u32, uDevFn));
1050 return rc;
1051 }
1052
1053 /* skip forward to the device checking that no new devices are present. */
1054 for (; uDevFn < u32; uDevFn++)
1055 {
1056 if (pBus->apDevices[uDevFn])
1057 {
1058 LogRel(("PCI: New device in slot %#x, %s (vendor=%#06x device=%#06x)\n", uDevFn, pBus->apDevices[uDevFn]->pszNameR3,
1059 PCIDevGetVendorId(pBus->apDevices[uDevFn]), PCIDevGetDeviceId(pBus->apDevices[uDevFn])));
1060 if (pHlp->pfnSSMHandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT)
1061 return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("New device in slot %#x, %s (vendor=%#06x device=%#06x)"),
1062 uDevFn, pBus->apDevices[uDevFn]->pszNameR3, PCIDevGetVendorId(pBus->apDevices[uDevFn]), PCIDevGetDeviceId(pBus->apDevices[uDevFn]));
1063 }
1064 }
1065
1066 /* get the data */
1067 union
1068 {
1069 PDMPCIDEV DevTmp;
1070 uint8_t abDevTmpPadding[RT_UOFFSETOF(PDMPCIDEV, abMsixState)];
1071 } u;
1072 RT_ZERO(u.DevTmp);
1073 u.DevTmp.Int.s.uIrqPinState = ~0; /* Invalid value in case we have an older saved state to force a state change in pciSetIrq. */
1074 pHlp->pfnSSMGetMem(pSSM, u.DevTmp.abConfig, 256);
1075 if (uVersion < VBOX_PCI_SAVED_STATE_VERSION_IRQ_STATES)
1076 {
1077 int32_t i32Temp;
1078 /* Irq value not needed anymore. */
1079 rc = pHlp->pfnSSMGetS32(pSSM, &i32Temp);
1080 if (RT_FAILURE(rc))
1081 return rc;
1082 }
1083 else
1084 {
1085 rc = pHlp->pfnSSMGetS32(pSSM, &u.DevTmp.Int.s.uIrqPinState);
1086 if (RT_FAILURE(rc))
1087 return rc;
1088 }
1089
1090 /* Load the region types and sizes. */
1091 if (uVersion >= VBOX_PCI_SAVED_STATE_VERSION_REGION_SIZES)
1092 {
1093 for (uint32_t iRegion = 0; iRegion < VBOX_PCI_NUM_REGIONS; iRegion++)
1094 {
1095 pHlp->pfnSSMGetU8(pSSM, &u.DevTmp.Int.s.aIORegions[iRegion].type);
1096 rc = pHlp->pfnSSMGetU64(pSSM, &u.DevTmp.Int.s.aIORegions[iRegion].size);
1097 AssertLogRelRCReturn(rc, rc);
1098 }
1099 }
1100
1101 /* check that it's still around. */
1102 PPDMPCIDEV pDev = pBus->apDevices[uDevFn];
1103 if (!pDev)
1104 {
1105 LogRel(("PCI: Device in slot %#x has been removed! vendor=%#06x device=%#06x\n", uDevFn,
1106 PCIDevGetVendorId(&u.DevTmp), PCIDevGetDeviceId(&u.DevTmp)));
1107 if (pHlp->pfnSSMHandleGetAfter(pSSM) != SSMAFTER_DEBUG_IT)
1108 return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS, N_("Device in slot %#x has been removed! vendor=%#06x device=%#06x"),
1109 uDevFn, PCIDevGetVendorId(&u.DevTmp), PCIDevGetDeviceId(&u.DevTmp));
1110 continue;
1111 }
1112
1113 /* match the vendor id assuming that this will never be changed. */
1114 if ( u.DevTmp.abConfig[0] != pDev->abConfig[0]
1115 || u.DevTmp.abConfig[1] != pDev->abConfig[1])
1116 return pHlp->pfnSSMSetCfgError(pSSM, RT_SRC_POS,
1117 N_("Device in slot %#x (%s) vendor id mismatch! saved=%.4Rhxs current=%.4Rhxs"),
1118 uDevFn, pDev->pszNameR3, u.DevTmp.abConfig, pDev->abConfig);
1119
1120 /* commit the loaded device config. */
1121 rc = devpciR3CommonRestoreRegions(pHlp, pSSM, pDev, u.DevTmp.Int.s.aIORegions,
1122 uVersion >= VBOX_PCI_SAVED_STATE_VERSION_REGION_SIZES);
1123 if (RT_FAILURE(rc))
1124 break;
1125 devpciR3CommonRestoreConfig(pDevIns, pDev, &u.DevTmp.abConfig[0]);
1126
1127 pDev->Int.s.uIrqPinState = u.DevTmp.Int.s.uIrqPinState;
1128 }
1129
1130 return VINF_SUCCESS;
1131}
1132
1133
1134/**
1135 * @callback_method_impl{FNSSMDEVLOADEXEC}
1136 */
1137static DECLCALLBACK(int) pciR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1138{
1139 PDEVPCIROOT pThis = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
1140 PDEVPCIBUS pBus = &pThis->PciBus;
1141 PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
1142 uint32_t u32;
1143 int rc;
1144
1145 /*
1146 * Check the version.
1147 */
1148 if (uVersion > VBOX_PCI_SAVED_STATE_VERSION)
1149 return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1150 Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
1151
1152 /*
1153 * Bus state data.
1154 */
1155 pHlp->pfnSSMGetU32(pSSM, &pThis->uConfigReg);
1156 if (uVersion >= VBOX_PCI_SAVED_STATE_VERSION_USE_IO_APIC)
1157 pHlp->pfnSSMGetBool(pSSM, &pThis->fUseIoApic);
1158
1159 /* Load IRQ states. */
1160 if (uVersion >= VBOX_PCI_SAVED_STATE_VERSION_IRQ_STATES)
1161 {
1162 for (uint8_t i = 0; i < RT_ELEMENTS(pThis->Piix3.auPciLegacyIrqLevels); i++)
1163 pHlp->pfnSSMGetU32V(pSSM, &pThis->Piix3.auPciLegacyIrqLevels[i]);
1164 for (uint8_t i = 0; i < RT_ELEMENTS(pThis->auPciApicIrqLevels); i++)
1165 pHlp->pfnSSMGetU32V(pSSM, &pThis->auPciApicIrqLevels[i]);
1166
1167 pHlp->pfnSSMGetU32(pSSM, &pThis->Piix3.iAcpiIrqLevel);
1168 pHlp->pfnSSMGetS32(pSSM, &pThis->Piix3.iAcpiIrq);
1169 }
1170
1171 /* separator */
1172 rc = pHlp->pfnSSMGetU32(pSSM, &u32);
1173 if (RT_FAILURE(rc))
1174 return rc;
1175 if (u32 != UINT32_MAX)
1176 AssertMsgFailedReturn(("u32=%#x\n", u32), rc);
1177
1178 /*
1179 * The devices.
1180 */
1181 return pciR3CommonLoadExec(pDevIns, pBus, pSSM, uVersion, uPass);
1182}
1183
1184
1185/* -=-=-=-=-=- PCI Bus Interface Methods (PDMPCIBUSREG) -=-=-=-=-=- */
1186
1187
1188/* -=-=-=-=-=- Debug Info Handlers -=-=-=-=-=- */
1189
1190/**
1191 * @callback_method_impl{FNDBGFHANDLERDEV}
1192 */
1193static DECLCALLBACK(void) pciR3IrqRouteInfo(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
1194{
1195 PPDMPCIDEV pPIIX3 = pDevIns->apPciDevs[1];
1196 NOREF(pszArgs);
1197
1198 uint16_t router = pPIIX3->uDevFn;
1199 pHlp->pfnPrintf(pHlp, "PCI interrupt router at: %02X:%02X:%X\n",
1200 router >> 8, (router >> 3) & 0x1f, router & 0x7);
1201
1202 for (int i = 0; i < 4; ++i)
1203 {
1204 uint8_t irq_map = devpciR3GetByte(pPIIX3, 0x60 + i);
1205 if (irq_map & 0x80)
1206 pHlp->pfnPrintf(pHlp, "PIRQ%c disabled\n", 'A' + i);
1207 else
1208 pHlp->pfnPrintf(pHlp, "PIRQ%c -> IRQ%d\n", 'A' + i, irq_map & 0xf);
1209 }
1210}
1211
1212/**
1213 * @callback_method_impl{FNDBGFHANDLERDEV, 'pirq'}
1214 */
1215DECLCALLBACK(void) devpciR3InfoPIRQ(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
1216{
1217 PDEVPCIROOT pGlobals = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
1218 NOREF(pszArgs);
1219
1220 pHlp->pfnPrintf(pHlp, "PCI IRQ levels:\n");
1221 for (int i = 0; i < DEVPCI_LEGACY_IRQ_PINS; ++i)
1222 pHlp->pfnPrintf(pHlp, " IRQ%c: %u\n", 'A' + i, pGlobals->Piix3.auPciLegacyIrqLevels[i]);
1223}
1224
1225
1226/* -=-=-=-=-=- PDMDEVREG -=-=-=-=-=- */
1227
1228/**
1229 * @interface_method_impl{PDMDEVREG,pfnReset}
1230 */
1231static DECLCALLBACK(void) pciR3Reset(PPDMDEVINS pDevIns)
1232{
1233 PDEVPCIROOT pGlobals = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
1234 PDEVPCIBUS pBus = &pGlobals->PciBus;
1235
1236 /* PCI-specific reset for each device. */
1237 for (uint32_t uDevFn = 0; uDevFn < RT_ELEMENTS(pBus->apDevices); uDevFn++)
1238 {
1239 if (pBus->apDevices[uDevFn])
1240 devpciR3ResetDevice(pDevIns, pBus->apDevices[uDevFn]);
1241 }
1242
1243 pciR3Piix3Reset(pDevIns->apPciDevs[1]);
1244}
1245
1246
1247/**
1248 * @interface_method_impl{PDMDEVREG,pfnDestruct}
1249 */
1250static DECLCALLBACK(int) pciR3Destruct(PPDMDEVINS pDevIns)
1251{
1252 PDEVPCIROOT pGlobals = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
1253 if (pGlobals->PciBus.papBridgesR3)
1254 {
1255 PDMDevHlpMMHeapFree(pDevIns, pGlobals->PciBus.papBridgesR3);
1256 pGlobals->PciBus.papBridgesR3 = NULL;
1257 }
1258 return VINF_SUCCESS;
1259}
1260
1261
1262/**
1263 * @interface_method_impl{PDMDEVREG,pfnConstruct}
1264 */
1265static DECLCALLBACK(int) pciR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
1266{
1267 PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1268 PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
1269 PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
1270 PDEVPCIROOT pGlobals = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
1271 RT_NOREF(iInstance);
1272 Assert(iInstance == 0);
1273
1274 /*
1275 * Validate and read configuration.
1276 */
1277 PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "IOAPIC", "");
1278
1279 /* query whether we got an IOAPIC */
1280 bool fUseIoApic;
1281 int rc = pHlp->pfnCFGMQueryBoolDef(pCfg, "IOAPIC", &fUseIoApic, false);
1282 if (RT_FAILURE(rc))
1283 return PDMDEV_SET_ERROR(pDevIns, rc,
1284 N_("Configuration error: Failed to query boolean value \"IOAPIC\""));
1285
1286 Log(("PCI: fUseIoApic=%RTbool fR0Enabled=%RTbool fRCEnabled=%RTbool\n", fUseIoApic, pDevIns->fR0Enabled, pDevIns->fRCEnabled));
1287
1288 /*
1289 * Init data and register the PCI bus.
1290 */
1291 pGlobals->uPciBiosIo = 0xc000;
1292 pGlobals->uPciBiosMmio = 0xf0000000;
1293 memset((void *)&pGlobals->Piix3.auPciLegacyIrqLevels, 0, sizeof(pGlobals->Piix3.auPciLegacyIrqLevels));
1294 pGlobals->fUseIoApic = fUseIoApic;
1295 memset((void *)&pGlobals->auPciApicIrqLevels, 0, sizeof(pGlobals->auPciApicIrqLevels));
1296
1297 pGlobals->PciBus.fTypePiix3 = true;
1298 pGlobals->PciBus.fTypeIch9 = false;
1299 pGlobals->PciBus.fPureBridge = false;
1300 pGlobals->PciBus.papBridgesR3 = (PPDMPCIDEV *)PDMDevHlpMMHeapAllocZ(pDevIns,
1301 sizeof(PPDMPCIDEV)
1302 * RT_ELEMENTS(pGlobals->PciBus.apDevices));
1303 AssertLogRelReturn(pGlobals->PciBus.papBridgesR3, VERR_NO_MEMORY);
1304
1305 PDEVPCIBUS pBus = &pGlobals->PciBus;
1306 PDMPCIBUSREGCC PciBusReg;
1307 PciBusReg.u32Version = PDM_PCIBUSREGCC_VERSION;
1308 PciBusReg.pfnRegisterR3 = devpciR3CommonRegisterDevice;
1309 PciBusReg.pfnRegisterMsiR3 = NULL;
1310 PciBusReg.pfnIORegionRegisterR3 = devpciR3CommonIORegionRegister;
1311 PciBusReg.pfnInterceptConfigAccesses = devpciR3CommonInterceptConfigAccesses;
1312 PciBusReg.pfnConfigRead = devpciR3CommonConfigRead;
1313 PciBusReg.pfnConfigWrite = devpciR3CommonConfigWrite;
1314 PciBusReg.pfnSetIrqR3 = pciSetIrq;
1315 PciBusReg.u32EndVersion = PDM_PCIBUSREGCC_VERSION;
1316 rc = PDMDevHlpPCIBusRegister(pDevIns, &PciBusReg, &pBusCC->pPciHlpR3, &pBus->iBus);
1317 if (RT_FAILURE(rc))
1318 return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to register ourselves as a PCI Bus"));
1319 Assert(pBus->iBus == 0);
1320 if (pBusCC->pPciHlpR3->u32Version != PDM_PCIHLPR3_VERSION)
1321 return PDMDevHlpVMSetError(pDevIns, VERR_VERSION_MISMATCH, RT_SRC_POS,
1322 N_("PCI helper version mismatch; got %#x expected %#x"),
1323 pBusCC->pPciHlpR3->u32Version, PDM_PCIHLPR3_VERSION);
1324
1325 /* Disable default device locking. */
1326 rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
1327 AssertRCReturn(rc, rc);
1328
1329 /*
1330 * Fill in PCI configs and add them to the bus.
1331 */
1332 PPDMPCIDEV pPciDev = pDevIns->apPciDevs[0];
1333 AssertPtr(pPciDev);
1334
1335 /* i440FX */
1336 PCIDevSetVendorId( pPciDev, 0x8086); /* Intel */
1337 PCIDevSetDeviceId( pPciDev, 0x1237);
1338 PCIDevSetRevisionId(pPciDev, 0x02);
1339 PCIDevSetClassSub( pPciDev, 0x00); /* host2pci */
1340 PCIDevSetClassBase( pPciDev, 0x06); /* PCI_bridge */
1341 PCIDevSetHeaderType(pPciDev, 0x00);
1342 rc = PDMDevHlpPCIRegisterEx(pDevIns, pPciDev, 0 /*fFlags*/, 0 /*uPciDevNo*/, 0 /*uPciFunNo*/, "i440FX");
1343 AssertLogRelRCReturn(rc, rc);
1344
1345 /* PIIX3 */
1346 PPDMPCIDEV pPiix3PciDev = pDevIns->apPciDevs[1];
1347 PCIDevSetVendorId( pPiix3PciDev, 0x8086); /* Intel */
1348 PCIDevSetDeviceId( pPiix3PciDev, 0x7000); /* 82371SB PIIX3 PCI-to-ISA bridge (Step A1) */
1349 PCIDevSetClassSub( pPiix3PciDev, 0x01); /* PCI_ISA */
1350 PCIDevSetClassBase( pPiix3PciDev, 0x06); /* PCI_bridge */
1351 PCIDevSetHeaderType(pPiix3PciDev, 0x80); /* PCI_multifunction, generic */
1352 rc = PDMDevHlpPCIRegisterEx(pDevIns, pPiix3PciDev, 0 /*fFlags*/, 1 /*uPciDevNo*/, 0 /*uPciFunNo*/, "PIIX3");
1353 AssertLogRelRCReturn(rc, rc);
1354 pciR3Piix3Reset(pDevIns->apPciDevs[1]);
1355
1356 pBus->iDevSearch = 16;
1357
1358 /*
1359 * Register I/O ports and save state.
1360 */
1361 static const IOMIOPORTDESC s_aAddrDesc[] = { { "PCI address", "PCI address", NULL, NULL }, { NULL, NULL, NULL, NULL } };
1362 rc = PDMDevHlpIoPortCreateAndMap(pDevIns, 0x0cf8, 1, pciIOPortAddressWrite, pciIOPortAddressRead, "i440FX (PCI)", s_aAddrDesc,
1363 &pGlobals->hIoPortAddress);
1364 AssertLogRelRCReturn(rc, rc);
1365
1366 static const IOMIOPORTDESC s_aDataDesc[] = { { "PCI data", "PCI data", NULL, NULL }, { NULL, NULL, NULL, NULL } };
1367 rc = PDMDevHlpIoPortCreateAndMap(pDevIns, 0x0cfc, 4, pciIOPortDataWrite, pciIOPortDataRead, "i440FX (PCI)", s_aDataDesc,
1368 &pGlobals->hIoPortData);
1369 AssertLogRelRCReturn(rc, rc);
1370
1371 static const IOMIOPORTDESC s_aMagicDesc[] = { { "PCI magic", NULL, NULL, NULL }, { NULL, NULL, NULL, NULL } };
1372 rc = PDMDevHlpIoPortCreateAndMap(pDevIns, 0x0410, 1, pciR3IOPortMagicPCIWrite, pciR3IOPortMagicPCIRead,
1373 "i440FX (Fake PCI BIOS trigger)", s_aMagicDesc, &pGlobals->hIoPortMagic);
1374 AssertLogRelRCReturn(rc, rc);
1375
1376
1377 rc = PDMDevHlpSSMRegisterEx(pDevIns, VBOX_PCI_SAVED_STATE_VERSION, sizeof(*pBus) + 16*128, "pgm",
1378 NULL, NULL, NULL,
1379 NULL, pciR3SaveExec, NULL,
1380 NULL, pciR3LoadExec, NULL);
1381 AssertLogRelRCReturn(rc, rc);
1382
1383 PDMDevHlpDBGFInfoRegister(pDevIns, "pci",
1384 "Display PCI bus status. Recognizes 'basic' or 'verbose' as arguments, defaults to 'basic'.",
1385 devpciR3InfoPci);
1386 PDMDevHlpDBGFInfoRegister(pDevIns, "pciirq", "Display PCI IRQ state. (no arguments)", devpciR3InfoPciIrq);
1387 PDMDevHlpDBGFInfoRegister(pDevIns, "pirq", "Display PIRQ state. (no arguments)", devpciR3InfoPIRQ);
1388 PDMDevHlpDBGFInfoRegister(pDevIns, "irqroute", "Display PCI IRQ routing. (no arguments)", pciR3IrqRouteInfo);
1389
1390 return VINF_SUCCESS;
1391}
1392
1393#else /* !IN_RING3 */
1394
1395/**
1396 * @interface_method_impl{PDMDEVREGR0,pfnConstruct}
1397 */
1398static DECLCALLBACK(int) pciRZRootConstruct(PPDMDEVINS pDevIns)
1399{
1400 PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1401 PDEVPCIROOT pGlobals = PDMINS_2_DATA(pDevIns, PDEVPCIROOT);
1402 PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
1403
1404 /* Mirror the ring-3 device lock disabling: */
1405 int rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
1406 AssertRCReturn(rc, rc);
1407
1408 /* Set up the RZ PCI bus callbacks: */
1409 PDMPCIBUSREGCC PciBusReg;
1410 PciBusReg.u32Version = PDM_PCIBUSREGCC_VERSION;
1411 PciBusReg.iBus = pGlobals->PciBus.iBus;
1412 PciBusReg.pfnSetIrq = pciSetIrq;
1413 PciBusReg.u32EndVersion = PDM_PCIBUSREGCC_VERSION;
1414 rc = PDMDevHlpPCIBusSetUpContext(pDevIns, &PciBusReg, &pBusCC->CTX_SUFF(pPciHlp));
1415 AssertRCReturn(rc, rc);
1416
1417 /* Set up I/O port callbacks, except for the magic port: */
1418 rc = PDMDevHlpIoPortSetUpContext(pDevIns, pGlobals->hIoPortAddress, pciIOPortAddressWrite, pciIOPortAddressRead, NULL);
1419 AssertLogRelRCReturn(rc, rc);
1420
1421 rc = PDMDevHlpIoPortSetUpContext(pDevIns, pGlobals->hIoPortData, pciIOPortDataWrite, pciIOPortDataRead, NULL);
1422 AssertLogRelRCReturn(rc, rc);
1423
1424 return rc;
1425}
1426
1427#endif /* !IN_RING3 */
1428
1429/**
1430 * The device registration structure.
1431 */
1432const PDMDEVREG g_DevicePCI =
1433{
1434 /* .u32Version = */ PDM_DEVREG_VERSION,
1435 /* .uReserved0 = */ 0,
1436 /* .szName = */ "pci",
1437 /* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS | PDM_DEVREG_FLAGS_RZ | PDM_DEVREG_FLAGS_NEW_STYLE,
1438 /* .fClass = */ PDM_DEVREG_CLASS_BUS_PCI,
1439 /* .cMaxInstances = */ 1,
1440 /* .uSharedVersion = */ 42,
1441 /* .cbInstanceShared = */ sizeof(DEVPCIROOT),
1442 /* .cbInstanceCC = */ sizeof(CTX_SUFF(DEVPCIBUS)),
1443 /* .cbInstanceRC = */ sizeof(DEVPCIBUSRC),
1444 /* .cMaxPciDevices = */ 2,
1445 /* .cMaxMsixVectors = */ 0,
1446 /* .pszDescription = */ "i440FX PCI bridge and PIIX3 ISA bridge.",
1447#if defined(IN_RING3)
1448 /* .pszRCMod = */ "VBoxDDRC.rc",
1449 /* .pszR0Mod = */ "VBoxDDR0.r0",
1450 /* .pfnConstruct = */ pciR3Construct,
1451 /* .pfnDestruct = */ pciR3Destruct,
1452 /* .pfnRelocate = */ NULL,
1453 /* .pfnMemSetup = */ NULL,
1454 /* .pfnPowerOn = */ NULL,
1455 /* .pfnReset = */ pciR3Reset,
1456 /* .pfnSuspend = */ NULL,
1457 /* .pfnResume = */ NULL,
1458 /* .pfnAttach = */ NULL,
1459 /* .pfnDetach = */ NULL,
1460 /* .pfnQueryInterface = */ NULL,
1461 /* .pfnInitComplete = */ NULL,
1462 /* .pfnPowerOff = */ NULL,
1463 /* .pfnSoftReset = */ NULL,
1464 /* .pfnReserved0 = */ NULL,
1465 /* .pfnReserved1 = */ NULL,
1466 /* .pfnReserved2 = */ NULL,
1467 /* .pfnReserved3 = */ NULL,
1468 /* .pfnReserved4 = */ NULL,
1469 /* .pfnReserved5 = */ NULL,
1470 /* .pfnReserved6 = */ NULL,
1471 /* .pfnReserved7 = */ NULL,
1472#elif defined(IN_RING0)
1473 /* .pfnEarlyConstruct = */ NULL,
1474 /* .pfnConstruct = */ pciRZRootConstruct,
1475 /* .pfnDestruct = */ NULL,
1476 /* .pfnFinalDestruct = */ NULL,
1477 /* .pfnRequest = */ NULL,
1478 /* .pfnReserved0 = */ NULL,
1479 /* .pfnReserved1 = */ NULL,
1480 /* .pfnReserved2 = */ NULL,
1481 /* .pfnReserved3 = */ NULL,
1482 /* .pfnReserved4 = */ NULL,
1483 /* .pfnReserved5 = */ NULL,
1484 /* .pfnReserved6 = */ NULL,
1485 /* .pfnReserved7 = */ NULL,
1486#elif defined(IN_RC)
1487 /* .pfnConstruct = */ pciRZRootConstruct,
1488 /* .pfnReserved0 = */ NULL,
1489 /* .pfnReserved1 = */ NULL,
1490 /* .pfnReserved2 = */ NULL,
1491 /* .pfnReserved3 = */ NULL,
1492 /* .pfnReserved4 = */ NULL,
1493 /* .pfnReserved5 = */ NULL,
1494 /* .pfnReserved6 = */ NULL,
1495 /* .pfnReserved7 = */ NULL,
1496#else
1497# error "Not in IN_RING3, IN_RING0 or IN_RC!"
1498#endif
1499 /* .u32VersionEnd = */ PDM_DEVREG_VERSION
1500
1501};
1502
1503
1504
1505/* -=-=-=-=-=- The PCI bridge specific bits -=-=-=-=-=- */
1506
1507/**
1508 * @interface_method_impl{PDMPCIBUSREGR3,pfnSetIrqR3}
1509 */
1510static DECLCALLBACK(void) pcibridgeSetIrq(PPDMDEVINS pDevIns, PPDMPCIDEV pPciDev, int iIrq, int iLevel, uint32_t uTagSrc)
1511{
1512 LogFlow(("pcibridgeSetIrq: %p %u %u %#x\n", pPciDev, iIrq, iLevel, uTagSrc));
1513
1514 /*
1515 * The PCI-to-PCI bridge specification defines how the interrupt pins
1516 * are routed from the secondary to the primary bus (see chapter 9).
1517 * iIrq gives the interrupt pin the pci device asserted.
1518 * We change iIrq here according to the spec and call the SetIrq function
1519 * of our parent passing the device which asserted the interrupt instead of the device of the bridge.
1520 */
1521 PDEVPCIBUS pBus;
1522 uint8_t uDevFnBridge;
1523 int iIrqPinBridge;
1524 PPDMDEVINS pDevInsBus = devpcibridgeCommonSetIrqRootWalk(pDevIns, pPciDev, iIrq, &pBus, &uDevFnBridge, &iIrqPinBridge);
1525 AssertReturnVoid(pDevInsBus);
1526 AssertMsg(pBus->iBus == 0, ("This is not the host pci bus iBus=%d\n", pBus->iBus));
1527 Assert(pDevInsBus->pReg == &g_DevicePCI);
1528
1529 pciSetIrqInternal(pDevInsBus, DEVPCIBUS_2_DEVPCIROOT(pBus), PDMINS_2_DATA_CC(pDevInsBus, PDEVPCIBUSCC),
1530 uDevFnBridge, pPciDev, iIrqPinBridge, iLevel, uTagSrc);
1531}
1532
1533#ifdef IN_RING3
1534
1535/**
1536 * @callback_method_impl{FNPCIBRIDGECONFIGWRITE}
1537 */
1538static DECLCALLBACK(VBOXSTRICTRC) pcibridgeR3ConfigWrite(PPDMDEVINSR3 pDevIns, uint8_t iBus, uint8_t iDevice,
1539 uint32_t u32Address, unsigned cb, uint32_t u32Value)
1540{
1541 LogFlowFunc(("pDevIns=%p iBus=%d iDevice=%d u32Address=%u cb=%d u32Value=%u\n", pDevIns, iBus, iDevice, u32Address, cb, u32Value));
1542 PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1543 VBOXSTRICTRC rcStrict = VINF_SUCCESS;
1544
1545 /* If the current bus is not the target bus search for the bus which contains the device. */
1546 if (iBus != pDevIns->apPciDevs[0]->abConfig[VBOX_PCI_SECONDARY_BUS])
1547 {
1548 PPDMPCIDEV pBridgeDevice = pciR3FindBridge(pBus, iBus);
1549 if (pBridgeDevice)
1550 {
1551 AssertPtr(pBridgeDevice->Int.s.pfnBridgeConfigWrite);
1552 rcStrict = pBridgeDevice->Int.s.pfnBridgeConfigWrite(pBridgeDevice->Int.s.CTX_SUFF(pDevIns), iBus, iDevice,
1553 u32Address, cb, u32Value);
1554 }
1555 }
1556 else
1557 {
1558 /* This is the target bus, pass the write to the device. */
1559 PPDMPCIDEV pPciDev = pBus->apDevices[iDevice];
1560 if (pPciDev)
1561 {
1562 LogFunc(("%s: addr=%02x val=%08x len=%d\n", pPciDev->pszNameR3, u32Address, u32Value, cb));
1563 rcStrict = VINF_PDM_PCI_DO_DEFAULT;
1564 if (pPciDev->Int.s.pfnConfigWrite)
1565 rcStrict = pPciDev->Int.s.pfnConfigWrite(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev, u32Address, cb, u32Value);
1566 if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
1567 rcStrict = devpciR3CommonConfigWriteWorker(pDevIns, PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC),
1568 pPciDev, u32Address, cb, u32Value);
1569 }
1570 }
1571 return rcStrict;
1572}
1573
1574
1575/**
1576 * @callback_method_impl{FNPCIBRIDGECONFIGREAD}
1577 */
1578static DECLCALLBACK(VBOXSTRICTRC) pcibridgeR3ConfigRead(PPDMDEVINSR3 pDevIns, uint8_t iBus, uint8_t iDevice,
1579 uint32_t u32Address, unsigned cb, uint32_t *pu32Value)
1580{
1581 LogFlowFunc(("pDevIns=%p iBus=%d iDevice=%d u32Address=%u cb=%d\n", pDevIns, iBus, iDevice, u32Address, cb));
1582 PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1583 VBOXSTRICTRC rcStrict = VINF_SUCCESS;
1584
1585 /* If the current bus is not the target bus search for the bus which contains the device. */
1586 if (iBus != pDevIns->apPciDevs[0]->abConfig[VBOX_PCI_SECONDARY_BUS])
1587 {
1588 PPDMPCIDEV pBridgeDevice = pciR3FindBridge(pBus, iBus);
1589 if (pBridgeDevice)
1590 {
1591 AssertPtr(pBridgeDevice->Int.s.pfnBridgeConfigRead);
1592 rcStrict = pBridgeDevice->Int.s.pfnBridgeConfigRead(pBridgeDevice->Int.s.CTX_SUFF(pDevIns),
1593 iBus, iDevice, u32Address, cb, pu32Value);
1594 }
1595 else
1596 *pu32Value = UINT32_MAX;
1597 }
1598 else
1599 {
1600 /* This is the target bus, pass the read to the device. */
1601 PPDMPCIDEV pPciDev = pBus->apDevices[iDevice];
1602 if (pPciDev)
1603 {
1604 rcStrict = VINF_PDM_PCI_DO_DEFAULT;
1605 if (pPciDev->Int.s.pfnConfigRead)
1606 rcStrict = pPciDev->Int.s.pfnConfigRead(pPciDev->Int.s.CTX_SUFF(pDevIns), pPciDev, u32Address, cb, pu32Value);
1607 if (rcStrict == VINF_PDM_PCI_DO_DEFAULT)
1608 rcStrict = devpciR3CommonConfigReadWorker(pPciDev, u32Address, cb, pu32Value);
1609
1610 LogFunc(("%s: u32Address=%02x u32Value=%08x cb=%d\n", pPciDev->pszNameR3, u32Address, *pu32Value, cb));
1611 }
1612 else
1613 *pu32Value = UINT32_MAX;
1614 }
1615
1616 return rcStrict;
1617}
1618
1619
1620/**
1621 * @callback_method_impl{FNSSMDEVSAVEEXEC}
1622 */
1623static DECLCALLBACK(int) pcibridgeR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
1624{
1625 return pciR3CommonSaveExec(pDevIns->pHlpR3, PDMINS_2_DATA(pDevIns, PDEVPCIBUS), pSSM);
1626}
1627
1628
1629/**
1630 * @callback_method_impl{FNSSMDEVLOADEXEC}
1631 */
1632static DECLCALLBACK(int) pcibridgeR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1633{
1634 PDEVPCIBUS pThis = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1635 if (uVersion > VBOX_PCI_SAVED_STATE_VERSION)
1636 return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1637 return pciR3CommonLoadExec(pDevIns, pThis, pSSM, uVersion, uPass);
1638}
1639
1640
1641/**
1642 * @interface_method_impl{PDMDEVREG,pfnReset}
1643 */
1644static DECLCALLBACK(void) pcibridgeR3Reset(PPDMDEVINS pDevIns)
1645{
1646 /* Reset config space to default values. */
1647 PPDMPCIDEV pPciDev = pDevIns->apPciDevs[0];
1648 pPciDev->abConfig[VBOX_PCI_PRIMARY_BUS] = 0;
1649 pPciDev->abConfig[VBOX_PCI_SECONDARY_BUS] = 0;
1650 pPciDev->abConfig[VBOX_PCI_SUBORDINATE_BUS] = 0;
1651}
1652
1653
1654/**
1655 * @interface_method_impl{PDMDEVREG,pfnDestruct}
1656 */
1657static DECLCALLBACK(int) pcibridgeR3Destruct(PPDMDEVINS pDevIns)
1658{
1659 PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1660 if (pBus->papBridgesR3)
1661 {
1662 PDMDevHlpMMHeapFree(pDevIns, pBus->papBridgesR3);
1663 pBus->papBridgesR3 = NULL;
1664 }
1665 return VINF_SUCCESS;
1666}
1667
1668
1669/**
1670 * @interface_method_impl{PDMDEVREG,pfnConstruct}
1671 */
1672static DECLCALLBACK(int) pcibridgeR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
1673{
1674 PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1675 RT_NOREF(iInstance, pCfg);
1676 PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1677 PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
1678
1679 /*
1680 * Validate and read configuration (none left).
1681 */
1682 PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "", "");
1683 Log(("PCI: fRCEnabled=%RTbool fR0Enabled=%RTbool\n", pDevIns->fRCEnabled, pDevIns->fR0Enabled));
1684
1685 /*
1686 * Init data and register the PCI bus.
1687 */
1688 pBus->fTypePiix3 = true;
1689 pBus->fTypeIch9 = false;
1690 pBus->fPureBridge = true;
1691 pBus->papBridgesR3 = (PPDMPCIDEV *)PDMDevHlpMMHeapAllocZ(pDevIns, sizeof(PPDMPCIDEV) * RT_ELEMENTS(pBus->apDevices));
1692 AssertLogRelReturn(pBus->papBridgesR3, VERR_NO_MEMORY);
1693
1694 PDMPCIBUSREGCC PciBusReg;
1695 PciBusReg.u32Version = PDM_PCIBUSREGCC_VERSION;
1696 PciBusReg.pfnRegisterR3 = devpcibridgeR3CommonRegisterDevice;
1697 PciBusReg.pfnRegisterMsiR3 = NULL;
1698 PciBusReg.pfnIORegionRegisterR3 = devpciR3CommonIORegionRegister;
1699 PciBusReg.pfnInterceptConfigAccesses = devpciR3CommonInterceptConfigAccesses;
1700 PciBusReg.pfnConfigWrite = devpciR3CommonConfigWrite;
1701 PciBusReg.pfnConfigRead = devpciR3CommonConfigRead;
1702 PciBusReg.pfnSetIrqR3 = pcibridgeSetIrq;
1703 PciBusReg.u32EndVersion = PDM_PCIBUSREGCC_VERSION;
1704 int rc = PDMDevHlpPCIBusRegister(pDevIns, &PciBusReg, &pBusCC->pPciHlpR3, &pBus->iBus);
1705 if (RT_FAILURE(rc))
1706 return PDMDEV_SET_ERROR(pDevIns, rc, N_("Failed to register ourselves as a PCI Bus"));
1707 Assert(pBus->iBus == (uint32_t)iInstance + 1); /* Can be removed when adding support for multiple bridge implementations. */
1708 if (pBusCC->pPciHlpR3->u32Version != PDM_PCIHLPR3_VERSION)
1709 return PDMDevHlpVMSetError(pDevIns, VERR_VERSION_MISMATCH, RT_SRC_POS,
1710 N_("PCI helper version mismatch; got %#x expected %#x"),
1711 pBusCC->pPciHlpR3->u32Version, PDM_PCIHLPR3_VERSION);
1712
1713 /*
1714 * Fill in PCI configs and add them to the bus.
1715 */
1716 PPDMPCIDEV pPciDev = pDevIns->apPciDevs[0];
1717 PCIDevSetVendorId( pPciDev, 0x8086); /* Intel */
1718 PCIDevSetDeviceId( pPciDev, 0x2448); /* 82801 Mobile PCI bridge. */
1719 PCIDevSetRevisionId(pPciDev, 0xf2);
1720 PCIDevSetClassSub( pPciDev, 0x04); /* pci2pci */
1721 PCIDevSetClassBase( pPciDev, 0x06); /* PCI_bridge */
1722 PCIDevSetClassProg( pPciDev, 0x01); /* Supports subtractive decoding. */
1723 PCIDevSetHeaderType(pPciDev, 0x01); /* Single function device which adheres to the PCI-to-PCI bridge spec. */
1724 PCIDevSetCommand( pPciDev, 0x0000);
1725 PCIDevSetStatus( pPciDev, 0x0020); /* 66MHz Capable. */
1726 PCIDevSetInterruptLine(pPciDev, 0x00); /* This device does not assert interrupts. */
1727
1728 /*
1729 * This device does not generate interrupts. Interrupt delivery from
1730 * devices attached to the bus is unaffected.
1731 */
1732 PCIDevSetInterruptPin(pPciDev, 0x00);
1733
1734 /*
1735 * Register this PCI bridge. The called function will take care on which bus we will get registered.
1736 */
1737 rc = PDMDevHlpPCIRegisterEx(pDevIns, pPciDev, PDMPCIDEVREG_F_PCI_BRIDGE, PDMPCIDEVREG_DEV_NO_FIRST_UNUSED,
1738 PDMPCIDEVREG_FUN_NO_FIRST_UNUSED, "pcibridge");
1739 if (RT_FAILURE(rc))
1740 return rc;
1741 pPciDev->Int.s.pfnBridgeConfigRead = pcibridgeR3ConfigRead;
1742 pPciDev->Int.s.pfnBridgeConfigWrite = pcibridgeR3ConfigWrite;
1743
1744 pBus->iDevSearch = 0;
1745
1746 /*
1747 * Register SSM handlers. We use the same saved state version as for the host bridge
1748 * to make changes easier.
1749 */
1750 rc = PDMDevHlpSSMRegisterEx(pDevIns, VBOX_PCI_SAVED_STATE_VERSION, sizeof(*pBus) + 16*128, "pgm",
1751 NULL, NULL, NULL,
1752 NULL, pcibridgeR3SaveExec, NULL,
1753 NULL, pcibridgeR3LoadExec, NULL);
1754 if (RT_FAILURE(rc))
1755 return rc;
1756
1757 return VINF_SUCCESS;
1758}
1759
1760#else /* !IN_RING3 */
1761
1762/**
1763 * @interface_method_impl{PDMDEVREGR0,pfnConstruct}
1764 */
1765static DECLCALLBACK(int) pcibridgeRZConstruct(PPDMDEVINS pDevIns)
1766{
1767 PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
1768 PDEVPCIBUS pBus = PDMINS_2_DATA(pDevIns, PDEVPCIBUS);
1769 PDEVPCIBUSCC pBusCC = PDMINS_2_DATA_CC(pDevIns, PDEVPCIBUSCC);
1770
1771 PDMPCIBUSREGCC PciBusReg;
1772 PciBusReg.u32Version = PDM_PCIBUSREGCC_VERSION;
1773 PciBusReg.iBus = pBus->iBus;
1774 PciBusReg.pfnSetIrq = pcibridgeSetIrq;
1775 PciBusReg.u32EndVersion = PDM_PCIBUSREGCC_VERSION;
1776 int rc = PDMDevHlpPCIBusSetUpContext(pDevIns, &PciBusReg, &pBusCC->CTX_SUFF(pPciHlp));
1777 AssertRC(rc);
1778
1779 return rc;
1780}
1781
1782#endif /* !IN_RING3 */
1783
1784/**
1785 * The device registration structure
1786 * for the PCI-to-PCI bridge.
1787 */
1788const PDMDEVREG g_DevicePCIBridge =
1789{
1790 /* .u32Version = */ PDM_DEVREG_VERSION,
1791 /* .uReserved0 = */ 0,
1792 /* .szName = */ "pcibridge",
1793 /* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS | PDM_DEVREG_FLAGS_RZ | PDM_DEVREG_FLAGS_NEW_STYLE,
1794 /* .fClass = */ PDM_DEVREG_CLASS_BUS_PCI,
1795 /* .cMaxInstances = */ ~0U,
1796 /* .uSharedVersion = */ 42,
1797 /* .cbInstanceShared = */ sizeof(DEVPCIBUS),
1798 /* .cbInstanceCC = */ sizeof(CTX_SUFF(DEVPCIBUS)),
1799 /* .cbInstanceRC = */ 0,
1800 /* .cMaxPciDevices = */ 1,
1801 /* .cMaxMsixVectors = */ 0,
1802 /* .pszDescription = */ "82801 Mobile PCI to PCI bridge",
1803#if defined(IN_RING3)
1804 /* .pszRCMod = */ "VBoxDDRC.rc",
1805 /* .pszR0Mod = */ "VBoxDDR0.r0",
1806 /* .pfnConstruct = */ pcibridgeR3Construct,
1807 /* .pfnDestruct = */ pcibridgeR3Destruct,
1808 /* .pfnRelocate = */ NULL,
1809 /* .pfnMemSetup = */ NULL,
1810 /* .pfnPowerOn = */ NULL,
1811 /* .pfnReset = */ pcibridgeR3Reset,
1812 /* .pfnSuspend = */ NULL,
1813 /* .pfnResume = */ NULL,
1814 /* .pfnAttach = */ NULL,
1815 /* .pfnDetach = */ NULL,
1816 /* .pfnQueryInterface = */ NULL,
1817 /* .pfnInitComplete = */ NULL,
1818 /* .pfnPowerOff = */ NULL,
1819 /* .pfnSoftReset = */ NULL,
1820 /* .pfnReserved0 = */ NULL,
1821 /* .pfnReserved1 = */ NULL,
1822 /* .pfnReserved2 = */ NULL,
1823 /* .pfnReserved3 = */ NULL,
1824 /* .pfnReserved4 = */ NULL,
1825 /* .pfnReserved5 = */ NULL,
1826 /* .pfnReserved6 = */ NULL,
1827 /* .pfnReserved7 = */ NULL,
1828#elif defined(IN_RING0)
1829 /* .pfnEarlyConstruct = */ NULL,
1830 /* .pfnConstruct = */ pcibridgeRZConstruct,
1831 /* .pfnDestruct = */ NULL,
1832 /* .pfnFinalDestruct = */ NULL,
1833 /* .pfnRequest = */ NULL,
1834 /* .pfnReserved0 = */ NULL,
1835 /* .pfnReserved1 = */ NULL,
1836 /* .pfnReserved2 = */ NULL,
1837 /* .pfnReserved3 = */ NULL,
1838 /* .pfnReserved4 = */ NULL,
1839 /* .pfnReserved5 = */ NULL,
1840 /* .pfnReserved6 = */ NULL,
1841 /* .pfnReserved7 = */ NULL,
1842#elif defined(IN_RC)
1843 /* .pfnConstruct = */ pcibridgeRZConstruct,
1844 /* .pfnReserved0 = */ NULL,
1845 /* .pfnReserved1 = */ NULL,
1846 /* .pfnReserved2 = */ NULL,
1847 /* .pfnReserved3 = */ NULL,
1848 /* .pfnReserved4 = */ NULL,
1849 /* .pfnReserved5 = */ NULL,
1850 /* .pfnReserved6 = */ NULL,
1851 /* .pfnReserved7 = */ NULL,
1852#else
1853# error "Not in IN_RING3, IN_RING0 or IN_RC!"
1854#endif
1855 /* .u32VersionEnd = */ PDM_DEVREG_VERSION
1856};
1857
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