DevPIC.cpp@ 86692

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1	/* $Id: DevPIC.cpp 84334 2020-05-18 15:47:26Z vboxsync $ */
2	/** @file
3	* DevPIC - Intel 8259 Programmable Interrupt Controller (PIC) Device.
4	*/
5
6	/*
7	* Copyright (C) 2006-2020 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	* -------------------------------------------------------------------
17	*
18	* This code is based on:
19	*
20	* QEMU 8259 interrupt controller emulation
21	*
22	* Copyright (c) 2003-2004 Fabrice Bellard
23	*
24	* Permission is hereby granted, free of charge, to any person obtaining a copy
25	* of this software and associated documentation files (the "Software"), to deal
26	* in the Software without restriction, including without limitation the rights
27	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
28	* copies of the Software, and to permit persons to whom the Software is
29	* furnished to do so, subject to the following conditions:
30	*
31	* The above copyright notice and this permission notice shall be included in
32	* all copies or substantial portions of the Software.
33	*
34	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
35	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
36	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
37	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
38	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
39	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
40	* THE SOFTWARE.
41	*
42	*/
43
44
45	/*********************************************************************************************************************************
46	* Header Files *
47	*********************************************************************************************************************************/
48	#define LOG_GROUP LOG_GROUP_DEV_PIC
49	#include <VBox/vmm/pdmdev.h>
50	#include <VBox/log.h>
51	#include <iprt/assert.h>
52	#include <iprt/string.h>
53
54	#include "VBoxDD.h"
55
56
57	/*********************************************************************************************************************************
58	* Defined Constants And Macros *
59	*********************************************************************************************************************************/
60	/** @def PIC_LOCK
61	* Acquires the PDM lock. This is a NOP if locking is disabled. */
62	/** @def PIC_UNLOCK
63	* Releases the PDM lock. This is a NOP if locking is disabled. */
64	#define PIC_LOCK(a_pDevIns, a_pThisCC, rc) \
65	do { \
66	int rc2 = (a_pThisCC)->pPicHlp->pfnLock((a_pDevIns), rc); \
67	if (rc2 != VINF_SUCCESS) \
68	return rc2; \
69	} while (0)
70	#define PIC_UNLOCK(a_pDevIns, a_pThisCC) \
71	(a_pThisCC)->pPicHlp->pfnUnlock((a_pDevIns))
72
73
74	/*********************************************************************************************************************************
75	* Structures and Typedefs *
76	*********************************************************************************************************************************/
77	/**
78	* The instance data of one (1) PIC.
79	*/
80	typedef struct PICSTATE
81	{
82	uint8_t last_irr; /*< edge detection /
83	uint8_t irr; /*< interrupt request register /
84	uint8_t imr; /*< interrupt mask register /
85	uint8_t isr; /*< interrupt service register /
86	uint8_t priority_add; /*< highest irq priority /
87	uint8_t irq_base;
88	uint8_t read_reg_select;
89	uint8_t poll;
90	uint8_t special_mask;
91	uint8_t init_state;
92	uint8_t auto_eoi;
93	uint8_t rotate_on_auto_eoi;
94	uint8_t special_fully_nested_mode;
95	uint8_t init4; /*< true if 4 byte init /
96	uint8_t elcr; /*< PIIX edge/trigger selection/
97	uint8_t elcr_mask;
98	/** The IRQ tags and source IDs for each (tracing purposes). */
99	uint32_t auTags[8];
100	/** The PIC index (0 or 1). */
101	uint8_t idxPic;
102	uint8_t abAlignment0[7]; /*< Alignment padding. /
103	/** The two I/O ports at 0x20 or 0xa0. */
104	IOMIOPORTHANDLE hIoPorts0;
105	/** The ELCR I/O port at 0x4d0 or 0x4d1. */
106	IOMIOPORTHANDLE hIoPorts1;
107	} PICSTATE;
108	AssertCompileMemberAlignment(PICSTATE, hIoPorts0, 8);
109	/** Pointer to the state of one PIC. */
110	typedef PICSTATE *PPICSTATE;
111
112
113	/**
114	* The shared PIC device instance data.
115	*/
116	typedef struct DEVPIC
117	{
118	/** The two interrupt controllers. */
119	PICSTATE aPics[2];
120	/** Number of release log entries. Used to prevent flooding. */
121	uint32_t cRelLogEntries;
122	uint32_t u32Padding;
123	#ifdef VBOX_WITH_STATISTICS
124	STAMCOUNTER StatSetIrqRZ;
125	STAMCOUNTER StatSetIrqR3;
126	STAMCOUNTER StatClearedActiveIRQ2;
127	STAMCOUNTER StatClearedActiveMasterIRQ;
128	STAMCOUNTER StatClearedActiveSlaveIRQ;
129	#endif
130	} DEVPIC;
131	/** Pointer to the shared PIC instance data. */
132	typedef DEVPIC *PDEVPIC;
133
134
135	/**
136	* The PIC device instance data for ring-3.
137	*/
138	typedef struct DEVPICR3
139	{
140	/** Pointer to the PIC ring-3 helpers. */
141	R3PTRTYPE(PCPDMPICHLP) pPicHlp;
142	} DEVPICR3;
143	/** Pointer to the ring-3 PIC instance data. */
144	typedef DEVPICR3 *PDEVPICR3;
145
146
147	/**
148	* The PIC device instance data for ring-0.
149	*/
150	typedef struct DEVPICR0
151	{
152	/** Pointer to the PIC ring-0 helpers. */
153	R0PTRTYPE(PCPDMPICHLP) pPicHlp;
154	} DEVPICR0;
155	/** Pointer to the ring-0 PIC instance data. */
156	typedef DEVPICR0 *PDEVPICR0;
157
158
159	/**
160	* The PIC device instance data for raw-mode.
161	*/
162	typedef struct DEVPICRC
163	{
164	/** Pointer to the PIC raw-mode helpers. */
165	RCPTRTYPE(PCPDMPICHLP) pPicHlp;
166	} DEVPICRC;
167	/** Pointer to the raw-mode PIC instance data. */
168	typedef DEVPICRC *PDEVPICRC;
169
170
171	/** The PIC instance data for the current context. */
172	typedef CTX_SUFF(DEVPIC) DEVPICCC;
173	/** Pointer to the PIC instance data for the current context. */
174	typedef CTX_SUFF(PDEVPIC) PDEVPICCC;
175
176
177
178	#ifndef VBOX_DEVICE_STRUCT_TESTCASE /* The rest of the file! */
179
180	#ifdef LOG_ENABLED
181	DECLINLINE(void) DumpPICState(PPICSTATE pPic, const char *pszFn)
182	{
183	Log2(("%s: pic%d: elcr=%x last_irr=%x irr=%x imr=%x isr=%x irq_base=%x\n",
184	pszFn, pPic->idxPic, pPic->elcr, pPic->last_irr, pPic->irr, pPic->imr, pPic->isr, pPic->irq_base));
185	}
186	#else
187	# define DumpPICState(pThis, szFn) do { } while (0)
188	#endif
189
190	/* set irq level. If an edge is detected, then the IRR is set to 1 */
191	DECLINLINE(void) pic_set_irq1(PPICSTATE pPic, int irq, int level, uint32_t uTagSrc)
192	{
193	Log(("pic_set_irq1: irq=%d level=%d\n", irq, level));
194	int mask = 1 << irq;
195	if (pPic->elcr & mask)
196	{
197	/* level triggered */
198	if (level)
199	{
200	Log2(("pic_set_irq1(ls) irr=%d irrnew=%d\n", pPic->irr, pPic->irr \| mask));
201	pPic->irr \|= mask;
202	pPic->last_irr \|= mask;
203	}
204	else
205	{
206	Log2(("pic_set_irq1(lc) irr=%d irrnew=%d\n", pPic->irr, pPic->irr & ~mask));
207	pPic->irr &= ~mask;
208	pPic->last_irr &= ~mask;
209	}
210	}
211	else
212	{
213	/* edge triggered */
214	if (level)
215	{
216	if ((pPic->last_irr & mask) == 0)
217	{
218	Log2(("pic_set_irq1 irr=%x last_irr=%x\n", pPic->irr \| mask, pPic->last_irr));
219	pPic->irr \|= mask;
220	}
221	pPic->last_irr \|= mask;
222	}
223	else
224	{
225	pPic->irr &= ~mask;
226	pPic->last_irr &= ~mask;
227	}
228	}
229
230	/* Save the tag. */
231	if (level)
232	{
233	if (!pPic->auTags[irq])
234	pPic->auTags[irq] = uTagSrc;
235	else
236	pPic->auTags[irq] \|= RT_BIT_32(31);
237	}
238
239	DumpPICState(pPic, "pic_set_irq1");
240	}
241
242	/* return the highest priority found in mask (highest = smallest
243	number). Return 8 if no irq */
244	DECLINLINE(int) get_priority(PPICSTATE pPic, int mask)
245	{
246	int priority;
247	if (mask == 0)
248	return 8;
249	priority = 0;
250	while ((mask & (1 << ((priority + pPic->priority_add) & 7))) == 0)
251	priority++;
252	return priority;
253	}
254
255	/* return the pic wanted interrupt. return -1 if none */
256	static int pic_get_irq(PPICSTATE pPic)
257	{
258	int mask, cur_priority, priority;
259	Log(("pic_get_irq%d: mask=%x\n", pPic->idxPic, pPic->irr & ~pPic->imr));
260	DumpPICState(pPic, "pic_get_irq");
261
262	mask = pPic->irr & ~pPic->imr;
263	priority = get_priority(pPic, mask);
264	Log(("pic_get_irq: priority=%x\n", priority));
265	if (priority == 8)
266	return -1;
267	/* compute current priority. If special fully nested mode on the
268	master, the IRQ coming from the slave is not taken into account
269	for the priority computation. */
270	mask = pPic->isr;
271	if (pPic->special_mask)
272	mask &= ~pPic->imr;
273	if (pPic->special_fully_nested_mode && pPic->idxPic == 0)
274	mask &= ~(1 << 2);
275	cur_priority = get_priority(pPic, mask);
276	Log(("pic_get_irq%d: cur_priority=%x pending=%d\n", pPic->idxPic,
277	cur_priority, (priority == 8) ? -1 : (priority + pPic->priority_add) & 7));
278	if (priority < cur_priority)
279	{
280	/* higher priority found: an irq should be generated */
281	return (priority + pPic->priority_add) & 7;
282	}
283	return -1;
284	}
285
286	/* raise irq to CPU if necessary. must be called every time the active
287	irq may change */
288	static int pic_update_irq(PPDMDEVINS pDevIns, PDEVPIC pThis, PDEVPICCC pThisCC)
289	{
290	int irq2, irq;
291
292	/* first look at slave pic */
293	irq2 = pic_get_irq(&pThis->aPics[1]);
294	Log(("pic_update_irq irq2=%d\n", irq2));
295	if (irq2 >= 0)
296	{
297	/* if irq request by slave pic, signal master PIC */
298	pic_set_irq1(&pThis->aPics[0], 2, 1, pThis->aPics[1].auTags[irq2]);
299	}
300	else
301	{
302	/* If not, clear the IR on the master PIC. */
303	pic_set_irq1(&pThis->aPics[0], 2, 0, 0 /uTagSrc/);
304	}
305	/* look at requested irq */
306	irq = pic_get_irq(&pThis->aPics[0]);
307	if (irq >= 0)
308	{
309	/* If irq 2 is pending on the master pic, then there must be one pending on the slave pic too! Otherwise we'll get
310	* spurious slave interrupts in picGetInterrupt.
311	*/
312	if (irq != 2 \|\| irq2 != -1)
313	{
314	for (int i = 0; i < 2; i++)
315	Log(("pic%d: imr=%x irr=%x padd=%d\n", i, pThis->aPics[i].imr, pThis->aPics[i].irr, pThis->aPics[i].priority_add));
316	Log(("pic: cpu_interrupt\n"));
317	pThisCC->pPicHlp->pfnSetInterruptFF(pDevIns);
318	}
319	else
320	{
321	STAM_COUNTER_INC(&pThis->StatClearedActiveIRQ2);
322	Log(("pic_update_irq: irq 2 is active, but no interrupt is pending on the slave pic!!\n"));
323	/* Clear it here, so lower priority interrupts can still be dispatched. */
324
325	/* if this was the only pending irq, then we must clear the interrupt ff flag */
326	pThisCC->pPicHlp->pfnClearInterruptFF(pDevIns);
327
328	/** @todo Is this correct? */
329	pThis->aPics[0].irr &= ~(1 << 2);
330
331	/* Call ourselves again just in case other interrupts are pending */
332	return pic_update_irq(pDevIns, pThis, pThisCC);
333	}
334	}
335	else
336	{
337	Log(("pic_update_irq: no interrupt is pending!!\n"));
338
339	/* we must clear the interrupt ff flag */
340	pThisCC->pPicHlp->pfnClearInterruptFF(pDevIns);
341	}
342	return VINF_SUCCESS;
343	}
344
345	/**
346	* Set the an IRQ.
347	*
348	* @param pDevIns Device instance of the PICs.
349	* @param iIrq IRQ number to set.
350	* @param iLevel IRQ level.
351	* @param uTagSrc The IRQ tag and source ID (for tracing).
352	*/
353	static DECLCALLBACK(void) picSetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel, uint32_t uTagSrc)
354	{
355	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
356	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
357	AssertMsgReturnVoid(iIrq < 16, ("iIrq=%d\n", iIrq));
358
359	Log(("picSetIrq %d %d\n", iIrq, iLevel));
360	DumpPICState(&pThis->aPics[0], "picSetIrq");
361	DumpPICState(&pThis->aPics[1], "picSetIrq");
362	STAM_COUNTER_INC(&pThis->CTX_SUFF_Z(StatSetIrq));
363	if ((iLevel & PDM_IRQ_LEVEL_FLIP_FLOP) == PDM_IRQ_LEVEL_FLIP_FLOP)
364	{
365	/* A flip-flop lowers the IRQ line and immediately raises it, so
366	* that a rising edge is guaranteed to occur. Note that the IRQ
367	* line must be held high for a while to avoid spurious interrupts.
368	*/
369	pic_set_irq1(&RT_SAFE_SUBSCRIPT(pThis->aPics, iIrq >> 3), iIrq & 7, 0, uTagSrc);
370	pic_update_irq(pDevIns, pThis, pThisCC);
371	}
372	pic_set_irq1(&RT_SAFE_SUBSCRIPT(pThis->aPics, iIrq >> 3), iIrq & 7, iLevel & PDM_IRQ_LEVEL_HIGH, uTagSrc);
373	pic_update_irq(pDevIns, pThis, pThisCC);
374	}
375
376
377	/* acknowledge interrupt 'irq' */
378	DECLINLINE(void) pic_intack(PPICSTATE pPic, int irq)
379	{
380	if (pPic->auto_eoi)
381	{
382	if (pPic->rotate_on_auto_eoi)
383	pPic->priority_add = (irq + 1) & 7;
384	}
385	else
386	pPic->isr \|= (1 << irq);
387
388	/* We don't clear a level sensitive interrupt here */
389	if (!(pPic->elcr & (1 << irq)))
390	{
391	Log2(("pic_intack: irr=%x irrnew=%x\n", pPic->irr, pPic->irr & ~(1 << irq)));
392	pPic->irr &= ~(1 << irq);
393	}
394	}
395
396
397	/**
398	* Get a pending interrupt.
399	*
400	* @returns Pending interrupt number.
401	* @param pDevIns Device instance of the PICs.
402	* @param puTagSrc Where to return the IRQ tag and source ID.
403	*/
404	static DECLCALLBACK(int) picGetInterrupt(PPDMDEVINS pDevIns, uint32_t *puTagSrc)
405	{
406	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
407	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
408	int irq;
409	int irq2;
410	int intno;
411
412	/* read the irq from the PIC */
413	DumpPICState(&pThis->aPics[0], "picGetInterrupt");
414	DumpPICState(&pThis->aPics[1], "picGetInterrupt");
415
416	irq = pic_get_irq(&pThis->aPics[0]);
417	if (irq >= 0)
418	{
419	pic_intack(&pThis->aPics[0], irq);
420	if (irq == 2)
421	{
422	irq2 = pic_get_irq(&pThis->aPics[1]);
423	if (irq2 >= 0)
424	pic_intack(&pThis->aPics[1], irq2);
425	else
426	{
427	/* Interrupt went away or is now masked. */
428	Log(("picGetInterrupt: spurious IRQ on slave controller, converted to IRQ15\n"));
429	irq2 = 7;
430	}
431	intno = pThis->aPics[1].irq_base + irq2;
432	*puTagSrc = pThis->aPics[0].auTags[irq2];
433	pThis->aPics[0].auTags[irq2] = 0;
434	Log2(("picGetInterrupt1: %x base=%x irq=%x uTagSrc=%#x\n", intno, pThis->aPics[1].irq_base, irq2, *puTagSrc));
435	irq = irq2 + 8;
436	}
437	else
438	{
439	intno = pThis->aPics[0].irq_base + irq;
440	*puTagSrc = pThis->aPics[0].auTags[irq];
441	pThis->aPics[0].auTags[irq] = 0;
442	Log2(("picGetInterrupt0: %x base=%x irq=%x uTagSrc=%#x\n", intno, pThis->aPics[0].irq_base, irq, *puTagSrc));
443	}
444	}
445	else
446	{
447	/* Interrupt went away or is now masked. */
448	Log(("picGetInterrupt: spurious IRQ on master controller, converted to IRQ7\n"));
449	irq = 7;
450	intno = pThis->aPics[0].irq_base + irq;
451	*puTagSrc = 0;
452	}
453	pic_update_irq(pDevIns, pThis, pThisCC);
454
455	Log(("picGetInterrupt: 0x%02x pending 0:%d 1:%d\n", intno, pic_get_irq(&pThis->aPics[0]), pic_get_irq(&pThis->aPics[1])));
456
457	return intno;
458	}
459
460	static void pic_reset(PPICSTATE pPic)
461	{
462	pPic->last_irr = 0;
463	pPic->irr = 0;
464	pPic->imr = 0;
465	pPic->isr = 0;
466	pPic->priority_add = 0;
467	pPic->irq_base = 0;
468	pPic->read_reg_select = 0;
469	pPic->poll = 0;
470	pPic->special_mask = 0;
471	pPic->init_state = 0;
472	pPic->auto_eoi = 0;
473	pPic->rotate_on_auto_eoi = 0;
474	pPic->special_fully_nested_mode = 0;
475	pPic->init4 = 0;
476	//pPic->elcr - not cleared;
477	//pPic->elcr_mask - not cleared;
478	RT_ZERO(pPic->auTags);
479	}
480
481
482	static VBOXSTRICTRC pic_ioport_write(PPDMDEVINS pDevIns, PDEVPIC pThis, PDEVPICCC pThisCC, PPICSTATE pPic,
483	uint32_t addr, uint32_t val)
484	{
485	VBOXSTRICTRC rc = VINF_SUCCESS;
486	int irq;
487
488	Log(("pic_write/%zu: addr=0x%02x val=0x%02x\n", pPic - pThis->aPics, addr, val));
489	addr &= 1;
490	if (addr == 0)
491	{
492	if (val & 0x10)
493	{
494	/* init */
495	pic_reset(pPic);
496	/* deassert a pending interrupt */
497	pThisCC->pPicHlp->pfnClearInterruptFF(pDevIns);
498
499	pPic->init_state = 1;
500	pPic->init4 = val & 1;
501	if (val & 0x02)
502	AssertReleaseMsgFailed(("single mode not supported"));
503	if (val & 0x08)
504	if (pThis->cRelLogEntries++ < 64)
505	LogRel(("pic_write: Level sensitive IRQ setting ignored.\n"));
506	}
507	else if (val & 0x08)
508	{
509	if (val & 0x04)
510	pPic->poll = 1;
511	if (val & 0x02)
512	pPic->read_reg_select = val & 1;
513	if (val & 0x40)
514	pPic->special_mask = (val >> 5) & 1;
515	}
516	else
517	{
518	int cmd = val >> 5;
519	switch (cmd)
520	{
521	case 0:
522	case 4:
523	pPic->rotate_on_auto_eoi = cmd >> 2;
524	break;
525	case 1: /* end of interrupt */
526	case 5:
527	{
528	int priority = get_priority(pPic, pPic->isr);
529	if (priority != 8) {
530	irq = (priority + pPic->priority_add) & 7;
531	Log(("pic_write: EOI prio=%d irq=%d\n", priority, irq));
532	pPic->isr &= ~(1 << irq);
533	if (cmd == 5)
534	pPic->priority_add = (irq + 1) & 7;
535	rc = pic_update_irq(pDevIns, pThis, pThisCC);
536	Assert(rc == VINF_SUCCESS);
537	DumpPICState(pPic, "eoi");
538	}
539	break;
540	}
541	case 3:
542	{
543	irq = val & 7;
544	Log(("pic_write: EOI2 for irq %d\n", irq));
545	pPic->isr &= ~(1 << irq);
546	rc = pic_update_irq(pDevIns, pThis, pThisCC);
547	Assert(rc == VINF_SUCCESS);
548	DumpPICState(pPic, "eoi2");
549	break;
550	}
551	case 6:
552	{
553	pPic->priority_add = (val + 1) & 7;
554	Log(("pic_write: lowest priority %d (highest %d)\n", val & 7, pPic->priority_add));
555	rc = pic_update_irq(pDevIns, pThis, pThisCC);
556	Assert(rc == VINF_SUCCESS);
557	break;
558	}
559	case 7:
560	{
561	irq = val & 7;
562	Log(("pic_write: EOI3 for irq %d\n", irq));
563	pPic->isr &= ~(1 << irq);
564	pPic->priority_add = (irq + 1) & 7;
565	rc = pic_update_irq(pDevIns, pThis, pThisCC);
566	Assert(rc == VINF_SUCCESS);
567	DumpPICState(pPic, "eoi3");
568	break;
569	}
570	default:
571	/* no operation */
572	break;
573	}
574	}
575	}
576	else
577	{
578	switch (pPic->init_state)
579	{
580	case 0:
581	/* normal mode */
582	pPic->imr = val;
583	rc = pic_update_irq(pDevIns, pThis, pThisCC);
584	Assert(rc == VINF_SUCCESS);
585	break;
586	case 1:
587	pPic->irq_base = val & 0xf8;
588	pPic->init_state = 2;
589	Log(("pic_write: set irq base to %x\n", pPic->irq_base));
590	break;
591	case 2:
592	if (pPic->init4)
593	pPic->init_state = 3;
594	else
595	pPic->init_state = 0;
596	break;
597	case 3:
598	pPic->special_fully_nested_mode = (val >> 4) & 1;
599	pPic->auto_eoi = (val >> 1) & 1;
600	pPic->init_state = 0;
601	Log(("pic_write: special_fully_nested_mode=%d auto_eoi=%d\n", pPic->special_fully_nested_mode, pPic->auto_eoi));
602	break;
603	}
604	}
605	return rc;
606	}
607
608
609	static uint32_t pic_poll_read(PPDMDEVINS pDevIns, PDEVPIC pThis, PDEVPICCC pThisCC, PPICSTATE pPic, uint32_t addr1)
610	{
611	int ret = pic_get_irq(pPic);
612	if (ret >= 0)
613	{
614	if (addr1 >> 7)
615	{
616	Log2(("pic_poll_read: clear slave irq (isr)\n"));
617	pThis->aPics[0].isr &= ~(1 << 2);
618	pThis->aPics[0].irr &= ~(1 << 2);
619	}
620	Log2(("pic_poll_read: clear irq %d (isr)\n", ret));
621	pPic->irr &= ~(1 << ret);
622	pPic->isr &= ~(1 << ret);
623	if (addr1 >> 7 \|\| ret != 2)
624	pic_update_irq(pDevIns, pThis, pThisCC);
625	}
626	else
627	{
628	ret = 0;
629	pic_update_irq(pDevIns, pThis, pThisCC);
630	}
631
632	return ret;
633	}
634
635
636	static uint32_t pic_ioport_read(PPDMDEVINS pDevIns, PDEVPIC pThis, PDEVPICCC pThisCC, PPICSTATE pPic, uint32_t addr1, int *pRC)
637	{
638	unsigned int addr;
639	int ret;
640
641	*pRC = VINF_SUCCESS;
642
643	addr = addr1;
644	addr &= 1;
645	if (pPic->poll)
646	{
647	ret = pic_poll_read(pDevIns, pThis, pThisCC, pPic, addr1);
648	pPic->poll = 0;
649	}
650	else
651	{
652	if (addr == 0)
653	{
654	if (pPic->read_reg_select)
655	ret = pPic->isr;
656	else
657	ret = pPic->irr;
658	}
659	else
660	ret = pPic->imr;
661	}
662	Log(("pic_read: addr=0x%02x val=0x%02x\n", addr1, ret));
663	return ret;
664	}
665
666
667
668	/* -=-=-=-=-=- I/O ports -=-=-=-=-=- */
669
670	/**
671	* @callback_method_impl{FNIOMIOPORTNEWIN}
672	*/
673	static DECLCALLBACK(VBOXSTRICTRC) picIOPortRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
674	{
675	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
676	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
677	uint32_t iPic = (uint32_t)(uintptr_t)pvUser;
678
679	Assert(iPic == 0 \|\| iPic == 1);
680	if (cb == 1)
681	{
682	int rc;
683	PIC_LOCK(pDevIns, pThisCC, VINF_IOM_R3_IOPORT_READ);
684	*pu32 = pic_ioport_read(pDevIns, pThis, pThisCC, &RT_SAFE_SUBSCRIPT(pThis->aPics, iPic), offPort, &rc);
685	PIC_UNLOCK(pDevIns, pThisCC);
686	return rc;
687	}
688	return VERR_IOM_IOPORT_UNUSED;
689	}
690
691
692	/**
693	* @callback_method_impl{FNIOMIOPORTNEWOUT}
694	*/
695	static DECLCALLBACK(VBOXSTRICTRC) picIOPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
696	{
697	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
698	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
699	uint32_t iPic = (uint32_t)(uintptr_t)pvUser;
700
701	Assert(iPic == 0 \|\| iPic == 1);
702
703	if (cb == 1)
704	{
705	VBOXSTRICTRC rc;
706	PIC_LOCK(pDevIns, pThisCC, VINF_IOM_R3_IOPORT_WRITE);
707	rc = pic_ioport_write(pDevIns, pThis, pThisCC, &RT_SAFE_SUBSCRIPT(pThis->aPics, iPic), offPort, u32);
708	PIC_UNLOCK(pDevIns, pThisCC);
709	return rc;
710	}
711	return VINF_SUCCESS;
712	}
713
714
715	/**
716	* @callback_method_impl{FNIOMIOPORTNEWIN, ELCR}
717	*/
718	static DECLCALLBACK(VBOXSTRICTRC) picIOPortElcrRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT offPort, uint32_t pu32, unsigned cb)
719	{
720	if (cb == 1)
721	{
722	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
723	PPICSTATE pPic = (PPICSTATE)pvUser;
724	PIC_LOCK(pDevIns, pThisCC, VINF_IOM_R3_IOPORT_READ);
725	*pu32 = pPic->elcr;
726	PIC_UNLOCK(pDevIns, pThisCC);
727	return VINF_SUCCESS;
728	}
729	RT_NOREF(offPort);
730	return VERR_IOM_IOPORT_UNUSED;
731	}
732
733
734	/**
735	* @callback_method_impl{FNIOMIOPORTNEWOUT, ELCR}
736	*/
737	static DECLCALLBACK(VBOXSTRICTRC) picIOPortElcrWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT offPort, uint32_t u32, unsigned cb)
738	{
739	if (cb == 1)
740	{
741	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
742	PPICSTATE pPic = (PPICSTATE)pvUser;
743	PIC_LOCK(pDevIns, pThisCC, VINF_IOM_R3_IOPORT_WRITE);
744	pPic->elcr = u32 & pPic->elcr_mask;
745	PIC_UNLOCK(pDevIns, pThisCC);
746	}
747	RT_NOREF(offPort);
748	return VINF_SUCCESS;
749	}
750
751
752	#ifdef IN_RING3
753
754	/**
755	* @callback_method_impl{FNDBGFHANDLERDEV}
756	*/
757	static DECLCALLBACK(void) picR3Info(PPDMDEVINS pDevIns, PCDBGFINFOHLP pHlp, const char *pszArgs)
758	{
759	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
760	NOREF(pszArgs);
761
762	/*
763	* Show info.
764	*/
765	for (unsigned i = 0; i < RT_ELEMENTS(pThis->aPics); i++)
766	{
767	PPICSTATE pPic = &pThis->aPics[i];
768
769	pHlp->pfnPrintf(pHlp, "PIC%d:\n", i);
770	pHlp->pfnPrintf(pHlp, " IMR :%02x ISR :%02x IRR :%02x LIRR:%02x\n",
771	pPic->imr, pPic->isr, pPic->irr, pPic->last_irr);
772	pHlp->pfnPrintf(pHlp, " Base:%02x PriAdd:%02x RegSel:%02x\n",
773	pPic->irq_base, pPic->priority_add, pPic->read_reg_select);
774	pHlp->pfnPrintf(pHlp, " Poll:%02x SpMask:%02x IState:%02x\n",
775	pPic->poll, pPic->special_mask, pPic->init_state);
776	pHlp->pfnPrintf(pHlp, " AEOI:%02x Rotate:%02x FNest :%02x Ini4:%02x\n",
777	pPic->auto_eoi, pPic->rotate_on_auto_eoi,
778	pPic->special_fully_nested_mode, pPic->init4);
779	pHlp->pfnPrintf(pHlp, " ELCR:%02x ELMask:%02x\n", pPic->elcr, pPic->elcr_mask);
780	}
781	}
782
783
784	/* -=-=-=-=-=- Saved State -=-=-=-=-=- */
785
786	/**
787	* @callback_method_impl{FNSSMDEVSAVEEXEC}
788	*/
789	static DECLCALLBACK(int) picR3SaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM)
790	{
791	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
792	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
793
794	for (unsigned i = 0; i < RT_ELEMENTS(pThis->aPics); i++)
795	{
796	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].last_irr);
797	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].irr);
798	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].imr);
799	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].isr);
800	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].priority_add);
801	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].irq_base);
802	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].read_reg_select);
803	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].poll);
804	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].special_mask);
805	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].init_state);
806	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].auto_eoi);
807	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].rotate_on_auto_eoi);
808	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].special_fully_nested_mode);
809	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].init4);
810	pHlp->pfnSSMPutU8(pSSM, pThis->aPics[i].elcr);
811	}
812	return VINF_SUCCESS;
813	}
814
815
816	/**
817	* @callback_method_impl{FNSSMDEVLOADEXEC}
818	*/
819	static DECLCALLBACK(int) picR3LoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
820	{
821	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
822	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
823
824	if (uVersion != 1)
825	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
826	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
827
828	for (unsigned i = 0; i < RT_ELEMENTS(pThis->aPics); i++)
829	{
830	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].last_irr);
831	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].irr);
832	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].imr);
833	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].isr);
834	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].priority_add);
835	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].irq_base);
836	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].read_reg_select);
837	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].poll);
838	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].special_mask);
839	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].init_state);
840	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].auto_eoi);
841	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].rotate_on_auto_eoi);
842	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].special_fully_nested_mode);
843	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].init4);
844	pHlp->pfnSSMGetU8(pSSM, &pThis->aPics[i].elcr);
845	}
846
847	/* Note! PDM will restore the VMCPU_FF_INTERRUPT_PIC state. */
848	return VINF_SUCCESS;
849	}
850
851
852	/* -=-=-=-=-=- PDMDEVREG -=-=-=-=-=- */
853
854	/**
855	* @interface_method_impl{PDMDEVREG,pfnReset}
856	*/
857	static DECLCALLBACK(void) picR3Reset(PPDMDEVINS pDevIns)
858	{
859	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
860	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
861	unsigned i;
862	LogFlow(("picR3Reset:\n"));
863	pThisCC->pPicHlp->pfnLock(pDevIns, VERR_INTERNAL_ERROR);
864
865	for (i = 0; i < RT_ELEMENTS(pThis->aPics); i++)
866	pic_reset(&pThis->aPics[i]);
867
868	PIC_UNLOCK(pDevIns, pThisCC);
869	}
870
871
872	/**
873	* @interface_method_impl{PDMDEVREG,pfnRelocate}
874	*/
875	static DECLCALLBACK(void) picR3Relocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
876	{
877	PDEVPICRC pThisRC = PDMINS_2_DATA_RC(pDevIns, PDEVPICRC);
878	pThisRC->pPicHlp += offDelta;
879	}
880
881
882	/**
883	* @interface_method_impl{PDMDEVREG,pfnConstruct}
884	*/
885	static DECLCALLBACK(int) picR3Construct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
886	{
887	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
888	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
889	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
890	int rc;
891	RT_NOREF(iInstance, pCfg);
892
893	Assert(iInstance == 0);
894
895	/*
896	* Validate and read configuration.
897	*/
898	PDMDEV_VALIDATE_CONFIG_RETURN(pDevIns, "", "");
899	Log(("DevPIC: fRCEnabled=%RTbool fR0Enabled=%RTbool\n", pDevIns->fRCEnabled, pDevIns->fR0Enabled));
900
901	/*
902	* Init the data.
903	*/
904	Assert(RT_ELEMENTS(pThis->aPics) == 2);
905	pThis->aPics[0].elcr_mask = 0xf8;
906	pThis->aPics[1].elcr_mask = 0xde;
907	pThis->aPics[0].idxPic = 0;
908	pThis->aPics[1].idxPic = 1;
909	pThis->cRelLogEntries = 0;
910
911	/*
912	* Register us as the PIC with PDM.
913	*/
914	PDMPICREG PicReg;
915	PicReg.u32Version = PDM_PICREG_VERSION;
916	PicReg.pfnSetIrq = picSetIrq;
917	PicReg.pfnGetInterrupt = picGetInterrupt;
918	PicReg.u32TheEnd = PDM_PICREG_VERSION;
919	rc = PDMDevHlpPICRegister(pDevIns, &PicReg, &pThisCC->pPicHlp);
920	AssertLogRelMsgRCReturn(rc, ("PDMDevHlpPICRegister -> %Rrc\n", rc), rc);
921	AssertReturn(pThisCC->pPicHlp->u32Version == PDM_PICHLP_VERSION, VERR_VERSION_MISMATCH);
922	AssertReturn(pThisCC->pPicHlp->u32TheEnd == PDM_PICHLP_VERSION, VERR_VERSION_MISMATCH);
923
924	/*
925	* Since the PIC helper interface provides access to the PDM lock,
926	* we need no device level critical section.
927	*/
928	rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
929	AssertRCReturn(rc, rc);
930
931	/*
932	* Register I/O ports and save state.
933	*/
934	rc = PDMDevHlpIoPortCreateUAndMap(pDevIns, 0x20 /uPort/, 2 /cPorts/, picIOPortWrite, picIOPortRead, (void *)0,
935	"i8259 PIC #0", NULL /paExtDesc/, &pThis->aPics[0].hIoPorts0);
936	AssertRCReturn(rc, rc);
937	rc = PDMDevHlpIoPortCreateUAndMap(pDevIns, 0xa0 /uPort/, 2 /cPorts/, picIOPortWrite, picIOPortRead, (void *)1,
938	"i8259 PIC #1", NULL /paExtDesc/, &pThis->aPics[1].hIoPorts0);
939	AssertRCReturn(rc, rc);
940
941
942	rc = PDMDevHlpIoPortCreateUAndMap(pDevIns, 0x4d0 /uPort/, 1 /cPorts/, picIOPortElcrWrite, picIOPortElcrRead,
943	&pThis->aPics[0], "i8259 PIC #0 - elcr", NULL /paExtDesc/, &pThis->aPics[0].hIoPorts1);
944	AssertRCReturn(rc, rc);
945	rc = PDMDevHlpIoPortCreateUAndMap(pDevIns, 0x4d1 /uPort/, 1 /cPorts/, picIOPortElcrWrite, picIOPortElcrRead,
946	&pThis->aPics[1], "i8259 PIC #1 - elcr", NULL /paExtDesc/, &pThis->aPics[1].hIoPorts1);
947	AssertRCReturn(rc, rc);
948
949	/*
950	* Saved state.
951	*/
952	rc = PDMDevHlpSSMRegister(pDevIns, 1 /* uVersion /, sizeof(pThis), picR3SaveExec, picR3LoadExec);
953	AssertRCReturn(rc, rc);
954
955	/*
956	* Register the info item.
957	*/
958	PDMDevHlpDBGFInfoRegister(pDevIns, "pic", "PIC info.", picR3Info);
959
960	/*
961	* Initialize the device state.
962	*/
963	picR3Reset(pDevIns);
964
965	# ifdef VBOX_WITH_STATISTICS
966	/*
967	* Statistics.
968	*/
969	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatSetIrqRZ, STAMTYPE_COUNTER, "SetIrqRZ", STAMUNIT_OCCURENCES, "Number of PIC SetIrq calls in ring-0/raw-mode.");
970	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatSetIrqR3, STAMTYPE_COUNTER, "SetIrqR3", STAMUNIT_OCCURENCES, "Number of PIC SetIrq calls in ring-3.");
971
972	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatClearedActiveIRQ2, STAMTYPE_COUNTER, "Masked/ActiveIRQ2", STAMUNIT_OCCURENCES, "Number of cleared irq 2.");
973	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatClearedActiveMasterIRQ, STAMTYPE_COUNTER, "Masked/ActiveMaster", STAMUNIT_OCCURENCES, "Number of cleared master irqs.");
974	PDMDevHlpSTAMRegister(pDevIns, &pThis->StatClearedActiveSlaveIRQ, STAMTYPE_COUNTER, "Masked/ActiveSlave", STAMUNIT_OCCURENCES, "Number of cleared slave irqs.");
975	# endif
976
977	return VINF_SUCCESS;
978	}
979
980	#else /* !IN_RING3 */
981
982	/**
983	* @callback_method_impl{PDMDEVREGR0,pfnConstruct}
984	*/
985	static DECLCALLBACK(int) picRZConstruct(PPDMDEVINS pDevIns)
986	{
987	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
988	PDEVPIC pThis = PDMDEVINS_2_DATA(pDevIns, PDEVPIC);
989	PDEVPICCC pThisCC = PDMDEVINS_2_DATA_CC(pDevIns, PDEVPICCC);
990
991	/* NOP the critsect: */
992	int rc = PDMDevHlpSetDeviceCritSect(pDevIns, PDMDevHlpCritSectGetNop(pDevIns));
993	AssertRCReturn(rc, rc);
994
995	/* Set up the PIC callbacks: */
996	PDMPICREG PicReg;
997	PicReg.u32Version = PDM_PICREG_VERSION;
998	PicReg.pfnSetIrq = picSetIrq;
999	PicReg.pfnGetInterrupt = picGetInterrupt;
1000	PicReg.u32TheEnd = PDM_PICREG_VERSION;
1001	rc = PDMDevHlpPICSetUpContext(pDevIns, &PicReg, &pThisCC->pPicHlp);
1002	AssertLogRelMsgRCReturn(rc, ("PDMDevHlpPICSetUpContext -> %Rrc\n", rc), rc);
1003	AssertPtrReturn(pThisCC->pPicHlp, VERR_INTERNAL_ERROR_3);
1004	AssertReturn(pThisCC->pPicHlp->u32Version == PDM_PICHLP_VERSION, VERR_VERSION_MISMATCH);
1005	AssertReturn(pThisCC->pPicHlp->u32TheEnd == PDM_PICHLP_VERSION, VERR_VERSION_MISMATCH);
1006
1007	/* I/O port callbacks: */
1008	Assert(RT_ELEMENTS(pThis->aPics) == 2);
1009	rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->aPics[0].hIoPorts0, picIOPortWrite, picIOPortRead, (void *)0);
1010	AssertRCReturn(rc, rc);
1011	rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->aPics[1].hIoPorts0, picIOPortWrite, picIOPortRead, (void *)1);
1012	AssertRCReturn(rc, rc);
1013
1014	rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->aPics[0].hIoPorts1, picIOPortElcrWrite, picIOPortElcrRead, &pThis->aPics[0]);
1015	AssertRCReturn(rc, rc);
1016	rc = PDMDevHlpIoPortSetUpContext(pDevIns, pThis->aPics[1].hIoPorts1, picIOPortElcrWrite, picIOPortElcrRead, &pThis->aPics[1]);
1017	AssertRCReturn(rc, rc);
1018
1019	return VINF_SUCCESS;
1020	}
1021
1022	#endif /* !IN_RING3 */
1023
1024	/**
1025	* The device registration structure.
1026	*/
1027	const PDMDEVREG g_DeviceI8259 =
1028	{
1029	/* .u32Version = */ PDM_DEVREG_VERSION,
1030	/* .uReserved0 = */ 0,
1031	/* .szName = */ "i8259",
1032	/* .fFlags = */ PDM_DEVREG_FLAGS_DEFAULT_BITS \| PDM_DEVREG_FLAGS_RZ \| PDM_DEVREG_FLAGS_NEW_STYLE
1033	\| PDM_DEVREG_FLAGS_REQUIRE_R0 \| PDM_DEVREG_FLAGS_REQUIRE_RC,
1034	/* .fClass = */ PDM_DEVREG_CLASS_PIC,
1035	/* .cMaxInstances = */ 1,
1036	/* .uSharedVersion = */ 42,
1037	/* .cbInstanceShared = */ sizeof(DEVPIC),
1038	/* .cbInstanceCC = */ sizeof(DEVPICCC),
1039	/* .cbInstanceRC = */ sizeof(DEVPICRC),
1040	/* .cMaxPciDevices = */ 0,
1041	/* .cMaxMsixVectors = */ 0,
1042	/* .pszDescription = */ "Intel 8259 Programmable Interrupt Controller (PIC) Device.",
1043	#if defined(IN_RING3)
1044	/* .pszRCMod = */ "VBoxDDRC.rc",
1045	/* .pszR0Mod = */ "VBoxDDR0.r0",
1046	/* .pfnConstruct = */ picR3Construct,
1047	/* .pfnDestruct = */ NULL,
1048	/* .pfnRelocate = */ picR3Relocate,
1049	/* .pfnMemSetup = */ NULL,
1050	/* .pfnPowerOn = */ NULL,
1051	/* .pfnReset = */ picR3Reset,
1052	/* .pfnSuspend = */ NULL,
1053	/* .pfnResume = */ NULL,
1054	/* .pfnAttach = */ NULL,
1055	/* .pfnDetach = */ NULL,
1056	/* .pfnQueryInterface = */ NULL,
1057	/* .pfnInitComplete = */ NULL,
1058	/* .pfnPowerOff = */ NULL,
1059	/* .pfnSoftReset = */ NULL,
1060	/* .pfnReserved0 = */ NULL,
1061	/* .pfnReserved1 = */ NULL,
1062	/* .pfnReserved2 = */ NULL,
1063	/* .pfnReserved3 = */ NULL,
1064	/* .pfnReserved4 = */ NULL,
1065	/* .pfnReserved5 = */ NULL,
1066	/* .pfnReserved6 = */ NULL,
1067	/* .pfnReserved7 = */ NULL,
1068	#elif defined(IN_RING0)
1069	/* .pfnEarlyConstruct = */ NULL,
1070	/* .pfnConstruct = */ picRZConstruct,
1071	/* .pfnDestruct = */ NULL,
1072	/* .pfnFinalDestruct = */ NULL,
1073	/* .pfnRequest = */ NULL,
1074	/* .pfnReserved0 = */ NULL,
1075	/* .pfnReserved1 = */ NULL,
1076	/* .pfnReserved2 = */ NULL,
1077	/* .pfnReserved3 = */ NULL,
1078	/* .pfnReserved4 = */ NULL,
1079	/* .pfnReserved5 = */ NULL,
1080	/* .pfnReserved6 = */ NULL,
1081	/* .pfnReserved7 = */ NULL,
1082	#elif defined(IN_RC)
1083	/* .pfnConstruct = */ picRZConstruct,
1084	/* .pfnReserved0 = */ NULL,
1085	/* .pfnReserved1 = */ NULL,
1086	/* .pfnReserved2 = */ NULL,
1087	/* .pfnReserved3 = */ NULL,
1088	/* .pfnReserved4 = */ NULL,
1089	/* .pfnReserved5 = */ NULL,
1090	/* .pfnReserved6 = */ NULL,
1091	/* .pfnReserved7 = */ NULL,
1092	#else
1093	# error "Not in IN_RING3, IN_RING0 or IN_RC!"
1094	#endif
1095	/* .u32VersionEnd = */ PDM_DEVREG_VERSION
1096	};
1097
1098	#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
1099

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source: vbox/trunk/src/VBox/Devices/PC/DevPIC.cpp@ 86692

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