DevAPIC.cpp@ 6738

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1	#ifdef VBOX
2	/* $Id: DevAPIC.cpp 6300 2008-01-09 16:41:22Z vboxsync $ */
3	/** @file
4	* Advanced Programmable Interrupt Controller (APIC) Device and
5	* I/O Advanced Programmable Interrupt Controller (IO-APIC) Device.
6	*/
7
8	/*
9	* Copyright (C) 2006-2007 innotek GmbH
10	*
11	* This file is part of VirtualBox Open Source Edition (OSE), as
12	* available from http://www.virtualbox.org. This file is free software;
13	* you can redistribute it and/or modify it under the terms of the GNU
14	* General Public License (GPL) as published by the Free Software
15	* Foundation, in version 2 as it comes in the "COPYING" file of the
16	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
17	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
18	* --------------------------------------------------------------------
19	*
20	* This code is based on:
21	*
22	* apic.c revision 1.5 @@OSETODO
23	*/
24
25	/*******************************************************************************
26	* Header Files *
27	*******************************************************************************/
28	#define LOG_GROUP LOG_GROUP_DEV_APIC
29	#include <VBox/pdmdev.h>
30
31	#include <VBox/log.h>
32	#include <VBox/stam.h>
33	#include <iprt/assert.h>
34	#include <iprt/asm.h>
35
36	#include "Builtins2.h"
37	#include "vl_vbox.h"
38
39	#define MSR_IA32_APICBASE 0x1b
40	#define MSR_IA32_APICBASE_BSP (1<<8)
41	#define MSR_IA32_APICBASE_ENABLE (1<<11)
42	#define MSR_IA32_APICBASE_BASE (0xfffff<<12)
43
44	#ifndef EINVAL
45	# define EINVAL 1
46	#endif
47
48	#ifdef _MSC_VER
49	# pragma warning(disable:4244)
50	#endif
51
52	/** @def APIC_LOCK
53	* Acquires the PDM lock. This is a NOP if locking is disabled. */
54	/** @def APIC_UNLOCK
55	* Releases the PDM lock. This is a NOP if locking is disabled. */
56	/** @def IOAPIC_LOCK
57	* Acquires the PDM lock. This is a NOP if locking is disabled. */
58	/** @def IOAPIC_UNLOCK
59	* Releases the PDM lock. This is a NOP if locking is disabled. */
60	#ifdef VBOX_WITH_PDM_LOCK
61	# define APIC_LOCK(pThis, rc) \
62	do { \
63	int rc2 = (pThis)->CTXALLSUFF(pApicHlp)->pfnLock((pThis)->CTXSUFF(pDevIns), rc); \
64	if (rc2 != VINF_SUCCESS) \
65	return rc2; \
66	} while (0)
67	# define APIC_UNLOCK(pThis) \
68	(pThis)->CTXALLSUFF(pApicHlp)->pfnUnlock((pThis)->CTXSUFF(pDevIns))
69	# define IOAPIC_LOCK(pThis, rc) \
70	do { \
71	int rc2 = (pThis)->CTXALLSUFF(pIoApicHlp)->pfnLock((pThis)->CTXSUFF(pDevIns), rc); \
72	if (rc2 != VINF_SUCCESS) \
73	return rc2; \
74	} while (0)
75	# define IOAPIC_UNLOCK(pThis) (pThis)->CTXALLSUFF(pIoApicHlp)->pfnUnlock((pThis)->CTXSUFF(pDevIns))
76	#else /* !VBOX_WITH_PDM_LOCK */
77	# define APIC_LOCK(pThis, rc) do { } while (0)
78	# define APIC_UNLOCK(pThis) do { } while (0)
79	# define IOAPIC_LOCK(pThis, rc) do { } while (0)
80	# define IOAPIC_UNLOCK(pThis) do { } while (0)
81	#endif /* !VBOX_WITH_PDM_LOCK */
82
83
84	#endif /* VBOX */
85
86	/*
87	* APIC support
88	*
89	* Copyright (c) 2004-2005 Fabrice Bellard
90	*
91	* This library is free software; you can redistribute it and/or
92	* modify it under the terms of the GNU Lesser General Public
93	* License as published by the Free Software Foundation; either
94	* version 2 of the License, or (at your option) any later version.
95	*
96	* This library is distributed in the hope that it will be useful,
97	* but WITHOUT ANY WARRANTY; without even the implied warranty of
98	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
99	* Lesser General Public License for more details.
100	*
101	* You should have received a copy of the GNU Lesser General Public
102	* License along with this library; if not, write to the Free Software
103	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
104	*/
105	#ifndef VBOX
106	#include "vl.h"
107	#endif
108
109	#define DEBUG_APIC
110	#define DEBUG_IOAPIC
111
112	/* APIC Local Vector Table */
113	#define APIC_LVT_TIMER 0
114	#define APIC_LVT_THERMAL 1
115	#define APIC_LVT_PERFORM 2
116	#define APIC_LVT_LINT0 3
117	#define APIC_LVT_LINT1 4
118	#define APIC_LVT_ERROR 5
119	#define APIC_LVT_NB 6
120
121	/* APIC delivery modes */
122	#define APIC_DM_FIXED 0
123	#define APIC_DM_LOWPRI 1
124	#define APIC_DM_SMI 2
125	#define APIC_DM_NMI 4
126	#define APIC_DM_INIT 5
127	#define APIC_DM_SIPI 6
128	#define APIC_DM_EXTINT 7
129
130	/* APIC destination mode */
131	#define APIC_DESTMODE_FLAT 0xf
132	#define APIC_DESTMODE_CLUSTER 1
133
134	#define APIC_TRIGGER_EDGE 0
135	#define APIC_TRIGGER_LEVEL 1
136
137	#define APIC_LVT_TIMER_PERIODIC (1<<17)
138	#define APIC_LVT_MASKED (1<<16)
139	#define APIC_LVT_LEVEL_TRIGGER (1<<15)
140	#define APIC_LVT_REMOTE_IRR (1<<14)
141	#define APIC_INPUT_POLARITY (1<<13)
142	#define APIC_SEND_PENDING (1<<12)
143
144	#define IOAPIC_NUM_PINS 0x18
145
146	#define ESR_ILLEGAL_ADDRESS (1 << 7)
147
148	#define APIC_SV_ENABLE (1 << 8)
149
150	#ifdef VBOX
151	#define APIC_MAX_PATCH_ATTEMPTS 100
152	#endif
153
154	typedef struct APICState {
155	#ifndef VBOX
156	CPUState *cpu_env;
157	#endif /* !VBOX */
158	uint32_t apicbase;
159	uint8_t id;
160	uint8_t arb_id;
161	#ifdef VBOX
162	uint32_t tpr;
163	#else
164	uint8_t tpr;
165	#endif
166	uint32_t spurious_vec;
167	uint8_t log_dest;
168	uint8_t dest_mode;
169	uint32_t isr[8]; /* in service register */
170	uint32_t tmr[8]; /* trigger mode register */
171	uint32_t irr[8]; /* interrupt request register */
172	uint32_t lvt[APIC_LVT_NB];
173	uint32_t esr; /* error register */
174	uint32_t icr[2];
175
176	uint32_t divide_conf;
177	int count_shift;
178	uint32_t initial_count;
179	#ifdef VBOX
180	uint32_t Alignment0;
181	#endif
182	int64_t initial_count_load_time, next_time;
183	#ifndef VBOX
184	QEMUTimer *timer;
185
186	struct APICState *next_apic;
187	#else /* VBOX */
188	/** HC pointer to the device instance. */
189	R3R0PTRTYPE(PPDMDEVINS) pDevInsHC;
190	/** Pointer to the APIC HC helpers. */
191	PCPDMAPICHLPR3 pApicHlpR3;
192	/** The APIC timer - HC Ptr. */
193	R3R0PTRTYPE(PTMTIMER) pTimerHC;
194	/** Pointer to the APIC R0 helpers. */
195	PCPDMAPICHLPR0 pApicHlpR0;
196
197	/** GC pointer to the device instance. */
198	PPDMDEVINSGC pDevInsGC;
199	/** Pointer to the APIC GC helpers. */
200	PCPDMAPICHLPGC pApicHlpGC;
201	/** The APIC timer - GC Ptr. */
202	PTMTIMERGC pTimerGC;
203
204	/** Number of attempts made to optimize TPR accesses. */
205	uint32_t ulTPRPatchAttempts;
206
207	# ifdef VBOX_WITH_STATISTICS
208	STAMCOUNTER StatMMIOReadGC;
209	STAMCOUNTER StatMMIOReadHC;
210	STAMCOUNTER StatMMIOWriteGC;
211	STAMCOUNTER StatMMIOWriteHC;
212	STAMCOUNTER StatClearedActiveIrq;
213	# endif
214	#endif /* VBOX */
215	} APICState;
216
217	struct IOAPICState {
218	uint8_t id;
219	uint8_t ioregsel;
220
221	uint32_t irr;
222	uint64_t ioredtbl[IOAPIC_NUM_PINS];
223
224	#ifdef VBOX
225	/** HC pointer to the device instance. */
226	R3R0PTRTYPE(PPDMDEVINS) pDevInsHC;
227	/** Pointer to the IOAPIC R3 helpers. */
228	PCPDMIOAPICHLPR3 pIoApicHlpR3;
229
230	/** GC pointer to the device instance. */
231	PPDMDEVINSGC pDevInsGC;
232	/** Pointer to the IOAPIC GC helpers. */
233	PCPDMIOAPICHLPGC pIoApicHlpGC;
234
235	/** Pointer to the IOAPIC R0 helpers. */
236	PCPDMIOAPICHLPR0 pIoApicHlpR0;
237	# if HC_ARCH_BITS == 32
238	uint32_t Alignment0;
239	# endif
240	# ifdef VBOX_WITH_STATISTICS
241	STAMCOUNTER StatMMIOReadGC;
242	STAMCOUNTER StatMMIOReadHC;
243	STAMCOUNTER StatMMIOWriteGC;
244	STAMCOUNTER StatMMIOWriteHC;
245	STAMCOUNTER StatSetIrqGC;
246	STAMCOUNTER StatSetIrqHC;
247	# endif
248	#endif /* VBOX */
249	};
250
251	#ifdef VBOX
252	typedef struct IOAPICState IOAPICState;
253	#endif /* VBOX */
254
255	#ifndef VBOX_DEVICE_STRUCT_TESTCASE
256	#ifndef VBOX
257	static int apic_io_memory;
258	static APICState *first_local_apic = NULL;
259	static int last_apic_id = 0;
260	#endif /* !VBOX */
261
262	static void apic_init_ipi(APICState *s);
263	static void apic_set_irq(APICState *s, int vector_num, int trigger_mode);
264	static bool apic_update_irq(APICState *s);
265
266	#ifdef VBOX
267	static uint32_t apic_get_delivery_bitmask(APICState *s, uint8_t dest, uint8_t dest_mode);
268	__BEGIN_DECLS
269	PDMBOTHCBDECL(int) apicMMIORead(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb);
270	PDMBOTHCBDECL(int) apicMMIOWrite(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb);
271	PDMBOTHCBDECL(int) apicGetInterrupt(PPDMDEVINS pDevIns);
272	PDMBOTHCBDECL(void) apicSetBase(PPDMDEVINS pDevIns, uint64_t val);
273	PDMBOTHCBDECL(uint64_t) apicGetBase(PPDMDEVINS pDevIns);
274	PDMBOTHCBDECL(void) apicSetTPR(PPDMDEVINS pDevIns, uint8_t val);
275	PDMBOTHCBDECL(uint8_t) apicGetTPR(PPDMDEVINS pDevIns);
276	PDMBOTHCBDECL(void) apicBusDeliverCallback(PPDMDEVINS pDevIns, uint8_t u8Dest, uint8_t u8DestMode,
277	uint8_t u8DeliveryMode, uint8_t iVector, uint8_t u8Polarity,
278	uint8_t u8TriggerMode);
279	PDMBOTHCBDECL(int) ioapicMMIORead(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb);
280	PDMBOTHCBDECL(int) ioapicMMIOWrite(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb);
281	PDMBOTHCBDECL(void) ioapicSetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel);
282
283	static void apic_update_tpr(APICState *s, uint32_t val);
284	__END_DECLS
285	#endif /* VBOX */
286
287	#ifndef VBOX
288	static void apic_bus_deliver(uint32_t deliver_bitmask, uint8_t delivery_mode,
289	uint8_t vector_num, uint8_t polarity,
290	uint8_t trigger_mode)
291	{
292	APICState *apic_iter;
293	#else /* VBOX */
294	static void apic_bus_deliver(APICState *s, uint32_t deliver_bitmask, uint8_t delivery_mode,
295	uint8_t vector_num, uint8_t polarity,
296	uint8_t trigger_mode)
297	{
298	#endif /* VBOX */
299
300	switch (delivery_mode) {
301	case APIC_DM_LOWPRI:
302	case APIC_DM_FIXED:
303	/* XXX: arbitration */
304	break;
305
306	case APIC_DM_SMI:
307	case APIC_DM_NMI:
308	break;
309
310	case APIC_DM_INIT:
311	/* normal INIT IPI sent to processors */
312	#ifdef VBOX
313	apic_init_ipi (s);
314	#else
315	for (apic_iter = first_local_apic; apic_iter != NULL;
316	apic_iter = apic_iter->next_apic) {
317	apic_init_ipi(apic_iter);
318	}
319	#endif
320	return;
321
322	case APIC_DM_EXTINT:
323	/* handled in I/O APIC code */
324	break;
325
326	default:
327	return;
328	}
329
330	#ifdef VBOX
331	if (deliver_bitmask & (1 << s->id))
332	apic_set_irq (s, vector_num, trigger_mode);
333	#else /* VBOX */
334	for (apic_iter = first_local_apic; apic_iter != NULL;
335	apic_iter = apic_iter->next_apic) {
336	if (deliver_bitmask & (1 << apic_iter->id))
337	apic_set_irq(apic_iter, vector_num, trigger_mode);
338	}
339	#endif /* VBOX */
340	}
341
342	#ifndef VBOX
343	void cpu_set_apic_base(CPUState *env, uint64_t val)
344	{
345	APICState *s = env->apic_state;
346	#ifdef DEBUG_APIC
347	Log(("cpu_set_apic_base: %016llx\n", val));
348	#endif
349
350	s->apicbase = (val & 0xfffff000) \|
351	(s->apicbase & (MSR_IA32_APICBASE_BSP \| MSR_IA32_APICBASE_ENABLE));
352	/* if disabled, cannot be enabled again */
353	if (!(val & MSR_IA32_APICBASE_ENABLE)) {
354	s->apicbase &= ~MSR_IA32_APICBASE_ENABLE;
355	env->cpuid_features &= ~CPUID_APIC;
356	s->spurious_vec &= ~APIC_SV_ENABLE;
357	}
358	}
359	#else /* VBOX */
360	PDMBOTHCBDECL(void) apicSetBase(PPDMDEVINS pDevIns, uint64_t val)
361	{
362	APICState s = PDMINS2DATA(pDevIns, APICState );
363	Log(("cpu_set_apic_base: %016RX64\n", val));
364
365	/** @todo If this change is valid immediately, then we should change the MMIO registration! */
366	s->apicbase = (val & 0xfffff000) \|
367	(s->apicbase & (MSR_IA32_APICBASE_BSP \| MSR_IA32_APICBASE_ENABLE));
368	/* if disabled, cannot be enabled again (until reset) */
369	if (!(val & MSR_IA32_APICBASE_ENABLE)) {
370	s->apicbase &= ~MSR_IA32_APICBASE_ENABLE;
371	s->spurious_vec &= ~APIC_SV_ENABLE;
372
373	/* Clear any pending APIC interrupt action flag. */
374	s->CTXALLSUFF(pApicHlp)->pfnClearInterruptFF(s->CTXSUFF(pDevIns));
375	s->CTXALLSUFF(pApicHlp)->pfnChangeFeature(pDevIns, false);
376	}
377	}
378	#endif /* VBOX */
379	#ifndef VBOX
380
381	uint64_t cpu_get_apic_base(CPUState *env)
382	{
383	APICState *s = env->apic_state;
384	#ifdef DEBUG_APIC
385	Log(("cpu_get_apic_base: %016llx\n", (uint64_t)s->apicbase));
386	#endif
387	return s->apicbase;
388	}
389
390	void cpu_set_apic_tpr(CPUX86State *env, uint8_t val)
391	{
392	APICState *s = env->apic_state;
393	s->tpr = (val & 0x0f) << 4;
394	apic_update_irq(s);
395	}
396
397	uint8_t cpu_get_apic_tpr(CPUX86State *env)
398	{
399	APICState *s = env->apic_state;
400	return s->tpr >> 4;
401	}
402
403	static int fls_bit(int value)
404	{
405	unsigned int ret = 0;
406
407	#ifdef HOST_I386
408	__asm__ __volatile__ ("bsr %1, %0\n" : "+r" (ret) : "rm" (value));
409	return ret;
410	#else
411	if (value > 0xffff)
412	value >>= 16, ret = 16;
413	if (value > 0xff)
414	value >>= 8, ret += 8;
415	if (value > 0xf)
416	value >>= 4, ret += 4;
417	if (value > 0x3)
418	value >>= 2, ret += 2;
419	return ret + (value >> 1);
420	#endif
421	}
422
423	static inline void set_bit(uint32_t *tab, int index)
424	{
425	int i, mask;
426	i = index >> 5;
427	mask = 1 << (index & 0x1f);
428	tab[i] \|= mask;
429	}
430
431	static inline void reset_bit(uint32_t *tab, int index)
432	{
433	int i, mask;
434	i = index >> 5;
435	mask = 1 << (index & 0x1f);
436	tab[i] &= ~mask;
437	}
438
439
440	#else /* VBOX */
441
442	PDMBOTHCBDECL(uint64_t) apicGetBase(PPDMDEVINS pDevIns)
443	{
444	APICState s = PDMINS2DATA(pDevIns, APICState );
445	Log(("apicGetBase: %016llx\n", (uint64_t)s->apicbase));
446	return s->apicbase;
447	}
448
449	PDMBOTHCBDECL(void) apicSetTPR(PPDMDEVINS pDevIns, uint8_t val)
450	{
451	APICState s = PDMINS2DATA(pDevIns, APICState );
452	LogFlow(("apicSetTPR: val=%#x (trp %#x -> %#x)\n", val, s->tpr, (val & 0x0f) << 4));
453	apic_update_tpr(s, (val & 0x0f) << 4);
454	}
455
456	PDMBOTHCBDECL(uint8_t) apicGetTPR(PPDMDEVINS pDevIns)
457	{
458	APICState s = PDMINS2DATA(pDevIns, APICState );
459	LogFlow(("apicGetTPR: returns %#x\n", s->tpr >> 4));
460	return s->tpr >> 4;
461	}
462
463	/**
464	* More or less private interface between IOAPIC, only PDM is responsible
465	* for connecting the two devices.
466	*/
467	PDMBOTHCBDECL(void) apicBusDeliverCallback(PPDMDEVINS pDevIns, uint8_t u8Dest, uint8_t u8DestMode,
468	uint8_t u8DeliveryMode, uint8_t iVector, uint8_t u8Polarity,
469	uint8_t u8TriggerMode)
470	{
471	APICState s = PDMINS2DATA(pDevIns, APICState );
472	LogFlow(("apicBusDeliverCallback: s=%p pDevIns=%p u8Dest=%#x u8DestMode=%#x u8DeliveryMode=%#x iVector=%#x u8Polarity=%#x u8TriggerMode=%#x\n",
473	s, pDevIns, u8Dest, u8DestMode, u8DeliveryMode, iVector, u8Polarity, u8TriggerMode));
474	apic_bus_deliver(s, apic_get_delivery_bitmask(s, u8Dest, u8DestMode),
475	u8DeliveryMode, iVector, u8Polarity, u8TriggerMode);
476	}
477
478	# define set_bit(pvBitmap, iBit) ASMBitSet(pvBitmap, iBit)
479	# define reset_bit(pvBitmap, iBit) ASMBitClear(pvBitmap, iBit)
480	# define fls_bit(value) (ASMBitLastSetU32(value) - 1)
481
482	#endif /* VBOX */
483
484	/* return -1 if no bit is set */
485	static int get_highest_priority_int(uint32_t *tab)
486	{
487	int i;
488	for(i = 7; i >= 0; i--) {
489	if (tab[i] != 0) {
490	return i * 32 + fls_bit(tab[i]);
491	}
492	}
493	return -1;
494	}
495
496	static int apic_get_ppr(APICState *s)
497	{
498	int tpr, isrv, ppr;
499
500	tpr = (s->tpr >> 4);
501	isrv = get_highest_priority_int(s->isr);
502	if (isrv < 0)
503	isrv = 0;
504	isrv >>= 4;
505	if (tpr >= isrv)
506	ppr = s->tpr;
507	else
508	ppr = isrv << 4;
509	return ppr;
510	}
511
512	static int apic_get_arb_pri(APICState *s)
513	{
514	/* XXX: arbitration */
515	return 0;
516	}
517
518	/* signal the CPU if an irq is pending */
519	static bool apic_update_irq(APICState *s)
520	{
521	int irrv, ppr;
522	if (!(s->spurious_vec & APIC_SV_ENABLE))
523	#ifdef VBOX
524	{
525	/* Clear any pending APIC interrupt action flag. */
526	s->CTXALLSUFF(pApicHlp)->pfnClearInterruptFF(s->CTXSUFF(pDevIns));
527	return false;
528	}
529	#else
530	return false;
531	#endif /* VBOX */
532	irrv = get_highest_priority_int(s->irr);
533	if (irrv < 0)
534	return false;
535	ppr = apic_get_ppr(s);
536	if (ppr && (irrv & 0xf0) <= (ppr & 0xf0))
537	return false;
538	#ifndef VBOX
539	cpu_interrupt(s->cpu_env, CPU_INTERRUPT_HARD);
540	#else
541	s->CTXALLSUFF(pApicHlp)->pfnSetInterruptFF(s->CTXSUFF(pDevIns));
542	return true;
543	#endif
544	}
545
546	#ifdef VBOX
547	static void apic_update_tpr(APICState *s, uint32_t val)
548	{
549	bool fIrqIsActive = false;
550	bool fIrqWasActive = false;
551
552	fIrqWasActive = apic_update_irq(s);
553	s->tpr = val;
554	fIrqIsActive = apic_update_irq(s);
555
556	/* If an interrupt is pending and now masked, then clear the FF flag. */
557	if (fIrqWasActive && !fIrqIsActive)
558	{
559	Log(("apic_update_tpr: deactivate interrupt that was masked by the TPR update (%x)\n", val));
560	STAM_COUNTER_INC(&s->StatClearedActiveIrq);
561	s->CTXALLSUFF(pApicHlp)->pfnClearInterruptFF(s->CTXSUFF(pDevIns));
562	}
563	}
564	#endif
565
566	static void apic_set_irq(APICState *s, int vector_num, int trigger_mode)
567	{
568	set_bit(s->irr, vector_num);
569	if (trigger_mode)
570	set_bit(s->tmr, vector_num);
571	else
572	reset_bit(s->tmr, vector_num);
573	apic_update_irq(s);
574	}
575
576	static void apic_eoi(APICState *s)
577	{
578	int isrv;
579	isrv = get_highest_priority_int(s->isr);
580	if (isrv < 0)
581	return;
582	reset_bit(s->isr, isrv);
583	/* XXX: send the EOI packet to the APIC bus to allow the I/O APIC to
584	set the remote IRR bit for level triggered interrupts. */
585	apic_update_irq(s);
586	}
587
588	#ifndef VBOX
589	static uint32_t apic_get_delivery_bitmask(uint8_t dest, uint8_t dest_mode)
590	#else /* VBOX */
591	static uint32_t apic_get_delivery_bitmask(APICState *s, uint8_t dest, uint8_t dest_mode)
592	#endif /* VBOX */
593	{
594	uint32_t mask = 0;
595	#ifndef VBOX
596	APICState *apic_iter;
597	#endif /* !VBOX */
598
599	if (dest_mode == 0) {
600	if (dest == 0xff)
601	mask = 0xff;
602	else
603	mask = 1 << dest;
604	} else {
605	/* XXX: cluster mode */
606	#ifdef VBOX
607	if (dest & s->log_dest)
608	mask \|= 1 << s->id;
609	#else /* !VBOX */
610	for (apic_iter = first_local_apic; apic_iter != NULL;
611	apic_iter = apic_iter->next_apic) {
612	if (dest & apic_iter->log_dest)
613	mask \|= (1 << apic_iter->id);
614	}
615	#endif /* !VBOX */
616	}
617
618	return mask;
619	}
620
621
622	static void apic_init_ipi(APICState *s)
623	{
624	int i;
625
626	for(i = 0; i < APIC_LVT_NB; i++)
627	s->lvt[i] = 1 << 16; /* mask LVT */
628	s->tpr = 0;
629	s->spurious_vec = 0xff;
630	s->log_dest = 0;
631	s->dest_mode = 0xff;
632	memset(s->isr, 0, sizeof(s->isr));
633	memset(s->tmr, 0, sizeof(s->tmr));
634	memset(s->irr, 0, sizeof(s->irr));
635	for(i = 0; i < APIC_LVT_NB; i++)
636	s->lvt[i] = 1 << 16; /* mask LVT */
637	s->esr = 0;
638	memset(s->icr, 0, sizeof(s->icr));
639	s->divide_conf = 0;
640	s->count_shift = 0;
641	s->initial_count = 0;
642	s->initial_count_load_time = 0;
643	s->next_time = 0;
644	}
645
646	static void apic_deliver(APICState *s, uint8_t dest, uint8_t dest_mode,
647	uint8_t delivery_mode, uint8_t vector_num,
648	uint8_t polarity, uint8_t trigger_mode)
649	{
650	uint32_t deliver_bitmask = 0;
651	int dest_shorthand = (s->icr[0] >> 18) & 3;
652	#ifndef VBOX
653	APICState *apic_iter;
654	#endif /* !VBOX */
655
656	switch (delivery_mode) {
657	case APIC_DM_LOWPRI:
658	/* XXX: serch for focus processor, arbitration */
659	dest = s->id;
660
661	case APIC_DM_INIT:
662	{
663	int trig_mode = (s->icr[0] >> 15) & 1;
664	int level = (s->icr[0] >> 14) & 1;
665	if (level == 0 && trig_mode == 1) {
666	#ifdef VBOX
667	if (deliver_bitmask & (1 << s->id)) {
668	s->arb_id = s->id;
669	}
670	#else /* !VBOX */
671	for (apic_iter = first_local_apic; apic_iter != NULL;
672	apic_iter = apic_iter->next_apic) {
673	if (deliver_bitmask & (1 << apic_iter->id)) {
674	apic_iter->arb_id = apic_iter->id;
675	}
676	}
677	#endif /* !VBOX */
678	return;
679	}
680	}
681	break;
682
683	case APIC_DM_SIPI:
684	#ifndef VBOX
685	for (apic_iter = first_local_apic; apic_iter != NULL;
686	apic_iter = apic_iter->next_apic) {
687	if (deliver_bitmask & (1 << apic_iter->id)) {
688	/* XXX: SMP support */
689	/* apic_startup(apic_iter); */
690	}
691	}
692	#endif /* !VBOX */
693	return;
694	}
695
696	switch (dest_shorthand) {
697	case 0:
698	#ifndef VBOX
699	deliver_bitmask = apic_get_delivery_bitmask(dest, dest_mode);
700	#else /* VBOX */
701	deliver_bitmask = apic_get_delivery_bitmask(s, dest, dest_mode);
702	#endif /* !VBOX */
703	break;
704	case 1:
705	deliver_bitmask = (1 << s->id);
706	break;
707	case 2:
708	deliver_bitmask = 0xffffffff;
709	break;
710	case 3:
711	deliver_bitmask = 0xffffffff & ~(1 << s->id);
712	break;
713	}
714
715	#ifndef VBOX
716	apic_bus_deliver(deliver_bitmask, delivery_mode, vector_num, polarity,
717	trigger_mode);
718	#else /* VBOX */
719	apic_bus_deliver(s, deliver_bitmask, delivery_mode, vector_num, polarity,
720	trigger_mode);
721	#endif /* VBOX */
722	}
723
724	#ifndef VBOX
725	int apic_get_interrupt(CPUState *env)
726	{
727	APICState *s = env->apic_state;
728	#else /* VBOX */
729	PDMBOTHCBDECL(int) apicGetInterrupt(PPDMDEVINS pDevIns)
730	{
731	APICState s = PDMINS2DATA(pDevIns, APICState );
732	#endif /* VBOX */
733	int intno;
734
735	/* if the APIC is installed or enabled, we let the 8259 handle the
736	IRQs */
737	if (!s) {
738	Log(("apic_get_interrupt: returns -1 (!s)\n"));
739	return -1;
740	}
741	if (!(s->spurious_vec & APIC_SV_ENABLE)) {
742	Log(("apic_get_interrupt: returns -1 (APIC_SV_ENABLE)\n"));
743	return -1;
744	}
745
746	/* XXX: spurious IRQ handling */
747	intno = get_highest_priority_int(s->irr);
748	if (intno < 0) {
749	Log(("apic_get_interrupt: returns -1 (irr)\n"));
750	return -1;
751	}
752	if (s->tpr && (uint32_t)intno <= s->tpr) {
753	Log(("apic_get_interrupt: returns %d (sp)\n", s->spurious_vec & 0xff));
754	return s->spurious_vec & 0xff;
755	}
756	reset_bit(s->irr, intno);
757	set_bit(s->isr, intno);
758	apic_update_irq(s);
759	LogFlow(("apic_get_interrupt: returns %d\n", intno));
760	return intno;
761	}
762
763	static uint32_t apic_get_current_count(APICState *s)
764	{
765	int64_t d;
766	uint32_t val;
767	#ifndef VBOX
768	d = (qemu_get_clock(vm_clock) - s->initial_count_load_time) >>
769	s->count_shift;
770	#else /* VBOX */
771	d = (TMTimerGet(s->CTXSUFF(pTimer)) - s->initial_count_load_time) >>
772	s->count_shift;
773	#endif /* VBOX */
774	if (s->lvt[APIC_LVT_TIMER] & APIC_LVT_TIMER_PERIODIC) {
775	/* periodic */
776	val = s->initial_count - (d % ((uint64_t)s->initial_count + 1));
777	} else {
778	if (d >= s->initial_count)
779	val = 0;
780	else
781	val = s->initial_count - d;
782	}
783	return val;
784	}
785
786	static void apic_timer_update(APICState *s, int64_t current_time)
787	{
788	int64_t next_time, d;
789
790	if (!(s->lvt[APIC_LVT_TIMER] & APIC_LVT_MASKED)) {
791	d = (current_time - s->initial_count_load_time) >>
792	s->count_shift;
793	if (s->lvt[APIC_LVT_TIMER] & APIC_LVT_TIMER_PERIODIC) {
794	d = ((d / ((uint64_t)s->initial_count + 1)) + 1) * ((uint64_t)s->initial_count + 1);
795	} else {
796	if (d >= s->initial_count)
797	goto no_timer;
798	d = (uint64_t)s->initial_count + 1;
799	}
800	next_time = s->initial_count_load_time + (d << s->count_shift);
801	#ifndef VBOX
802	qemu_mod_timer(s->timer, next_time);
803	#else
804	TMTimerSet(s->CTXSUFF(pTimer), next_time);
805	#endif
806	s->next_time = next_time;
807	} else {
808	no_timer:
809	#ifndef VBOX
810	qemu_del_timer(s->timer);
811	#else
812	TMTimerStop(s->CTXSUFF(pTimer));
813	#endif
814	}
815	}
816
817	#ifdef IN_RING3
818	#ifndef VBOX
819	static void apic_timer(void *opaque)
820	{
821	APICState *s = opaque;
822	#else /* VBOX */
823	static DECLCALLBACK(void) apicTimer(PPDMDEVINS pDevIns, PTMTIMER pTimer)
824	{
825	APICState s = PDMINS2DATA(pDevIns, APICState );
826	# ifdef VBOX_WITH_PDM_LOCK
827	s->pApicHlpR3->pfnLock(pDevIns, VERR_INTERNAL_ERROR);
828	# endif
829	#endif /* VBOX */
830
831	if (!(s->lvt[APIC_LVT_TIMER] & APIC_LVT_MASKED)) {
832	apic_set_irq(s, s->lvt[APIC_LVT_TIMER] & 0xff, APIC_TRIGGER_EDGE);
833	}
834	apic_timer_update(s, s->next_time);
835
836	#ifdef VBOX
837	APIC_UNLOCK(s);
838	#endif
839	}
840	#endif /* IN_RING3 */
841
842	#ifndef VBOX
843	static uint32_t apic_mem_readb(void *opaque, target_phys_addr_t addr)
844	{
845	return 0;
846	}
847
848	static uint32_t apic_mem_readw(void *opaque, target_phys_addr_t addr)
849	{
850	return 0;
851	}
852
853	static void apic_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
854	{
855	}
856
857	static void apic_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val)
858	{
859	}
860	#endif /* !VBOX */
861
862
863	#ifndef VBOX
864	static uint32_t apic_mem_readl(void *opaque, target_phys_addr_t addr)
865	{
866	CPUState *env;
867	APICState *s;
868	#else /* VBOX */
869	static uint32_t apic_mem_readl(APICState *s, target_phys_addr_t addr)
870	{
871	#endif /* VBOX */
872	uint32_t val;
873	int index;
874
875	#ifndef VBOX
876	env = cpu_single_env;
877	if (!env)
878	return 0;
879	s = env->apic_state;
880	#endif /* !VBOX */
881
882	index = (addr >> 4) & 0xff;
883	switch(index) {
884	case 0x02: /* id */
885	val = s->id << 24;
886	break;
887	case 0x03: /* version */
888	val = 0x11 \| ((APIC_LVT_NB - 1) << 16); /* version 0x11 */
889	break;
890	case 0x08:
891	val = s->tpr;
892	break;
893	case 0x09:
894	val = apic_get_arb_pri(s);
895	break;
896	case 0x0a:
897	/* ppr */
898	val = apic_get_ppr(s);
899	break;
900	#ifdef VBOX
901	case 0x0b:
902	Log(("apic_mem_readl %x %x -> write only returning 0\n", addr, index));
903	val = 0;
904	break;
905	#endif
906
907	case 0x0d:
908	val = s->log_dest << 24;
909	break;
910	case 0x0e:
911	#ifdef VBOX
912	/* Bottom 28 bits are always 1 */
913	val = (s->dest_mode << 28) \| 0xfffffff;
914	#else
915	val = s->dest_mode << 28;
916	#endif
917	break;
918	case 0x0f:
919	val = s->spurious_vec;
920	break;
921	#ifndef VBOX
922	case 0x10 ... 0x17:
923	#else /* VBOX */
924	case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17:
925	#endif /* VBOX */
926	val = s->isr[index & 7];
927	break;
928	#ifndef VBOX
929	case 0x18 ... 0x1f:
930	#else /* VBOX */
931	case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f:
932	#endif /* VBOX */
933	val = s->tmr[index & 7];
934	break;
935	#ifndef VBOX
936	case 0x20 ... 0x27:
937	#else /* VBOX */
938	case 0x20: case 0x21: case 0x22: case 0x23: case 0x24: case 0x25: case 0x26: case 0x27:
939	#endif /* VBOX */
940	val = s->irr[index & 7];
941	break;
942	case 0x28:
943	val = s->esr;
944	break;
945	case 0x30:
946	case 0x31:
947	val = s->icr[index & 1];
948	break;
949	#ifndef VBOX
950	case 0x32 ... 0x37:
951	#else /* VBOX */
952	case 0x32: case 0x33: case 0x34: case 0x35: case 0x36: case 0x37:
953	#endif /* VBOX */
954	val = s->lvt[index - 0x32];
955	break;
956	case 0x38:
957	val = s->initial_count;
958	break;
959	case 0x39:
960	val = apic_get_current_count(s);
961	break;
962	case 0x3e:
963	val = s->divide_conf;
964	break;
965	default:
966	AssertMsgFailed(("apic_mem_readl: unknown index %x\n", index));
967	s->esr \|= ESR_ILLEGAL_ADDRESS;
968	val = 0;
969	break;
970	}
971	#ifdef DEBUG_APIC
972	Log(("APIC read: %08x = %08x\n", (uint32_t)addr, val));
973	#endif
974	return val;
975	}
976
977	#ifndef VBOX
978	static void apic_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
979	{
980	CPUState *env;
981	APICState *s;
982	#else /* VBOX */
983	static int apic_mem_writel(APICState *s, target_phys_addr_t addr, uint32_t val)
984	{
985	#endif /* VBOX */
986	int index;
987
988	#ifndef VBOX
989	env = cpu_single_env;
990	if (!env)
991	return;
992	s = env->apic_state;
993	#endif /* !VBOX */
994
995	#ifdef DEBUG_APIC
996	Log(("APIC write: %08x = %08x\n", (uint32_t)addr, val));
997	#endif
998
999	index = (addr >> 4) & 0xff;
1000	switch(index) {
1001	case 0x02:
1002	s->id = (val >> 24);
1003	break;
1004	case 0x03:
1005	Log(("apic_mem_writel: write to version register; ignored\n"));
1006	break;
1007	case 0x08:
1008	#ifdef VBOX
1009	apic_update_tpr(s, val);
1010	#else
1011	s->tpr = val;
1012	apic_update_irq(s);
1013	#endif
1014	break;
1015	case 0x09:
1016	case 0x0a:
1017	Log(("apic_mem_writel: write to read-only register %d ignored\n", index));
1018	break;
1019	case 0x0b: /* EOI */
1020	apic_eoi(s);
1021	break;
1022	case 0x0d:
1023	s->log_dest = val >> 24;
1024	break;
1025	case 0x0e:
1026	s->dest_mode = val >> 28;
1027	break;
1028	case 0x0f:
1029	s->spurious_vec = val & 0x1ff;
1030	apic_update_irq(s);
1031	break;
1032	#ifndef VBOX
1033	case 0x10 ... 0x17:
1034	case 0x18 ... 0x1f:
1035	case 0x20 ... 0x27:
1036	case 0x28:
1037	#else
1038	case 0x10: case 0x11: case 0x12: case 0x13: case 0x14: case 0x15: case 0x16: case 0x17:
1039	case 0x18: case 0x19: case 0x1a: case 0x1b: case 0x1c: case 0x1d: case 0x1e: case 0x1f:
1040	case 0x20: case 0x21: case 0x22: case 0x23: case 0x24: case 0x25: case 0x26: case 0x27:
1041	case 0x28:
1042	Log(("apic_mem_writel: write to read-only register %d ignored\n", index));
1043	#endif
1044	break;
1045
1046	case 0x30:
1047	s->icr[0] = val;
1048	apic_deliver(s, (s->icr[1] >> 24) & 0xff, (s->icr[0] >> 11) & 1,
1049	(s->icr[0] >> 8) & 7, (s->icr[0] & 0xff),
1050	(s->icr[0] >> 14) & 1, (s->icr[0] >> 15) & 1);
1051	break;
1052	case 0x31:
1053	s->icr[1] = val;
1054	break;
1055	#ifndef VBOX
1056	case 0x32 ... 0x37:
1057	#else /* VBOX */
1058	case 0x32: case 0x33: case 0x34: case 0x35: case 0x36: case 0x37:
1059	#endif /* VBOX */
1060	{
1061	int n = index - 0x32;
1062	s->lvt[n] = val;
1063	if (n == APIC_LVT_TIMER)
1064	#ifndef VBOX
1065	apic_timer_update(s, qemu_get_clock(vm_clock));
1066	#else /* VBOX */
1067	apic_timer_update(s, TMTimerGet(s->CTXSUFF(pTimer)));
1068	#endif /* VBOX*/
1069	}
1070	break;
1071	case 0x38:
1072	s->initial_count = val;
1073	#ifndef VBOX
1074	s->initial_count_load_time = qemu_get_clock(vm_clock);
1075	#else /* VBOX */
1076	s->initial_count_load_time = TMTimerGet(s->CTXSUFF(pTimer));
1077	#endif /* VBOX*/
1078	apic_timer_update(s, s->initial_count_load_time);
1079	break;
1080	case 0x39:
1081	Log(("apic_mem_writel: write to read-only register %d ignored\n", index));
1082	break;
1083	case 0x3e:
1084	{
1085	int v;
1086	s->divide_conf = val & 0xb;
1087	v = (s->divide_conf & 3) \| ((s->divide_conf >> 1) & 4);
1088	s->count_shift = (v + 1) & 7;
1089	}
1090	break;
1091	default:
1092	AssertMsgFailed(("apic_mem_writel: unknown index %x\n", index));
1093	s->esr \|= ESR_ILLEGAL_ADDRESS;
1094	break;
1095	}
1096	#ifdef VBOX
1097	return VINF_SUCCESS;
1098	#endif
1099	}
1100
1101	#ifdef IN_RING3
1102
1103	static void apic_save(QEMUFile f, void opaque)
1104	{
1105	APICState s = (APICState)opaque;
1106	int i;
1107
1108	qemu_put_be32s(f, &s->apicbase);
1109	qemu_put_8s(f, &s->id);
1110	qemu_put_8s(f, &s->arb_id);
1111	#ifdef VBOX
1112	qemu_put_be32s(f, &s->tpr);
1113	#else
1114	qemu_put_8s(f, &s->tpr);
1115	#endif
1116	qemu_put_be32s(f, &s->spurious_vec);
1117	qemu_put_8s(f, &s->log_dest);
1118	qemu_put_8s(f, &s->dest_mode);
1119	for (i = 0; i < 8; i++) {
1120	qemu_put_be32s(f, &s->isr[i]);
1121	qemu_put_be32s(f, &s->tmr[i]);
1122	qemu_put_be32s(f, &s->irr[i]);
1123	}
1124	for (i = 0; i < APIC_LVT_NB; i++) {
1125	qemu_put_be32s(f, &s->lvt[i]);
1126	}
1127	qemu_put_be32s(f, &s->esr);
1128	qemu_put_be32s(f, &s->icr[0]);
1129	qemu_put_be32s(f, &s->icr[1]);
1130	qemu_put_be32s(f, &s->divide_conf);
1131	qemu_put_be32s(f, &s->count_shift);
1132	qemu_put_be32s(f, &s->initial_count);
1133	qemu_put_be64s(f, &s->initial_count_load_time);
1134	qemu_put_be64s(f, &s->next_time);
1135	}
1136
1137	static int apic_load(QEMUFile f, void opaque, int version_id)
1138	{
1139	APICState s = (APICState)opaque;
1140	int i;
1141
1142	if (version_id != 1)
1143	return -EINVAL;
1144
1145	/* XXX: what if the base changes? (registered memory regions) */
1146	qemu_get_be32s(f, &s->apicbase);
1147	qemu_get_8s(f, &s->id);
1148	qemu_get_8s(f, &s->arb_id);
1149	#ifdef VBOX
1150	qemu_get_be32s(f, &s->tpr);
1151	#else
1152	qemu_get_8s(f, &s->tpr);
1153	#endif
1154	qemu_get_be32s(f, &s->spurious_vec);
1155	qemu_get_8s(f, &s->log_dest);
1156	qemu_get_8s(f, &s->dest_mode);
1157	for (i = 0; i < 8; i++) {
1158	qemu_get_be32s(f, &s->isr[i]);
1159	qemu_get_be32s(f, &s->tmr[i]);
1160	qemu_get_be32s(f, &s->irr[i]);
1161	}
1162	for (i = 0; i < APIC_LVT_NB; i++) {
1163	qemu_get_be32s(f, &s->lvt[i]);
1164	}
1165	qemu_get_be32s(f, &s->esr);
1166	qemu_get_be32s(f, &s->icr[0]);
1167	qemu_get_be32s(f, &s->icr[1]);
1168	qemu_get_be32s(f, &s->divide_conf);
1169	qemu_get_be32s(f, (uint32_t *)&s->count_shift);
1170	qemu_get_be32s(f, (uint32_t *)&s->initial_count);
1171	qemu_get_be64s(f, (uint64_t *)&s->initial_count_load_time);
1172	qemu_get_be64s(f, (uint64_t *)&s->next_time);
1173	return 0;
1174	}
1175
1176	static void apic_reset(void *opaque)
1177	{
1178	APICState s = (APICState)opaque;
1179	#ifdef VBOX
1180	TMTimerStop(s->CTXSUFF(pTimer));
1181
1182	/* malc, I've removed the initing duplicated in apic_init_ipi(). This
1183	* arb_id was left over.. */
1184	s->arb_id = 0;
1185
1186	/* Reset should re-enable the APIC. */
1187	s->apicbase = 0xfee00000 \| MSR_IA32_APICBASE_BSP \| MSR_IA32_APICBASE_ENABLE;
1188	s->pApicHlpR3->pfnChangeFeature(s->pDevInsHC, true);
1189
1190	#endif /* VBOX */
1191	apic_init_ipi(s);
1192	}
1193
1194	#endif /* IN_RING3 */
1195
1196	#ifndef VBOX
1197	static CPUReadMemoryFunc *apic_mem_read[3] = {
1198	apic_mem_readb,
1199	apic_mem_readw,
1200	apic_mem_readl,
1201	};
1202
1203	static CPUWriteMemoryFunc *apic_mem_write[3] = {
1204	apic_mem_writeb,
1205	apic_mem_writew,
1206	apic_mem_writel,
1207	};
1208
1209	int apic_init(CPUState *env)
1210	{
1211	APICState *s;
1212
1213	s = qemu_mallocz(sizeof(APICState));
1214	if (!s)
1215	return -1;
1216	env->apic_state = s;
1217	apic_init_ipi(s);
1218	s->id = last_apic_id++;
1219	s->cpu_env = env;
1220	s->apicbase = 0xfee00000 \|
1221	(s->id ? 0 : MSR_IA32_APICBASE_BSP) \| MSR_IA32_APICBASE_ENABLE;
1222
1223	/* XXX: mapping more APICs at the same memory location */
1224	if (apic_io_memory == 0) {
1225	/* NOTE: the APIC is directly connected to the CPU - it is not
1226	on the global memory bus. */
1227	apic_io_memory = cpu_register_io_memory(0, apic_mem_read,
1228	apic_mem_write, NULL);
1229	cpu_register_physical_memory(s->apicbase & ~0xfff, 0x1000,
1230	apic_io_memory);
1231	}
1232	s->timer = qemu_new_timer(vm_clock, apic_timer, s);
1233
1234	register_savevm("apic", 0, 1, apic_save, apic_load, s);
1235	qemu_register_reset(apic_reset, s);
1236
1237	s->next_apic = first_local_apic;
1238	first_local_apic = s;
1239
1240	return 0;
1241	}
1242	#endif /* !VBOX */
1243
1244	static void ioapic_service(IOAPICState *s)
1245	{
1246	uint8_t i;
1247	uint8_t trig_mode;
1248	uint8_t vector;
1249	uint8_t delivery_mode;
1250	uint32_t mask;
1251	uint64_t entry;
1252	uint8_t dest;
1253	uint8_t dest_mode;
1254	uint8_t polarity;
1255
1256	for (i = 0; i < IOAPIC_NUM_PINS; i++) {
1257	mask = 1 << i;
1258	if (s->irr & mask) {
1259	entry = s->ioredtbl[i];
1260	if (!(entry & APIC_LVT_MASKED)) {
1261	trig_mode = ((entry >> 15) & 1);
1262	dest = entry >> 56;
1263	dest_mode = (entry >> 11) & 1;
1264	delivery_mode = (entry >> 8) & 7;
1265	polarity = (entry >> 13) & 1;
1266	if (trig_mode == APIC_TRIGGER_EDGE)
1267	s->irr &= ~mask;
1268	if (delivery_mode == APIC_DM_EXTINT)
1269	#ifndef VBOX /* malc: i'm still not so sure about ExtINT delivery */
1270	vector = pic_read_irq(isa_pic);
1271	#else /* VBOX */
1272	{
1273	AssertMsgFailed(("Delivery mode ExtINT"));
1274	vector = 0xff; /* incorrect but shuts up gcc. */
1275	}
1276	#endif /* VBOX */
1277	else
1278	vector = entry & 0xff;
1279
1280	#ifndef VBOX
1281	apic_bus_deliver(apic_get_delivery_bitmask(dest, dest_mode),
1282	delivery_mode, vector, polarity, trig_mode);
1283	#else /* VBOX */
1284	s->CTXALLSUFF(pIoApicHlp)->pfnApicBusDeliver(s->CTXSUFF(pDevIns),
1285	dest,
1286	dest_mode,
1287	delivery_mode,
1288	vector,
1289	polarity,
1290	trig_mode);
1291	#endif /* VBOX */
1292	}
1293	}
1294	}
1295	}
1296
1297	#ifdef VBOX
1298	static
1299	#endif
1300	void ioapic_set_irq(void *opaque, int vector, int level)
1301	{
1302	IOAPICState s = (IOAPICState)opaque;
1303
1304	if (vector >= 0 && vector < IOAPIC_NUM_PINS) {
1305	uint32_t mask = 1 << vector;
1306	uint64_t entry = s->ioredtbl[vector];
1307
1308	if ((entry >> 15) & 1) {
1309	/* level triggered */
1310	if (level) {
1311	s->irr \|= mask;
1312	ioapic_service(s);
1313	#ifdef VBOX
1314	if ((level & PDM_IRQ_LEVEL_FLIP_FLOP) == PDM_IRQ_LEVEL_FLIP_FLOP) {
1315	s->irr &= ~mask;
1316	}
1317	#endif
1318	} else {
1319	s->irr &= ~mask;
1320	}
1321	} else {
1322	/* edge triggered */
1323	if (level) {
1324	s->irr \|= mask;
1325	ioapic_service(s);
1326	}
1327	}
1328	}
1329	}
1330
1331	static uint32_t ioapic_mem_readl(void *opaque, target_phys_addr_t addr)
1332	{
1333	IOAPICState s = (IOAPICState)opaque;
1334	int index;
1335	uint32_t val = 0;
1336
1337	addr &= 0xff;
1338	if (addr == 0x00) {
1339	val = s->ioregsel;
1340	} else if (addr == 0x10) {
1341	switch (s->ioregsel) {
1342	case 0x00:
1343	val = s->id << 24;
1344	break;
1345	case 0x01:
1346	val = 0x11 \| ((IOAPIC_NUM_PINS - 1) << 16); /* version 0x11 */
1347	break;
1348	case 0x02:
1349	val = 0;
1350	break;
1351	default:
1352	index = (s->ioregsel - 0x10) >> 1;
1353	if (index >= 0 && index < IOAPIC_NUM_PINS) {
1354	if (s->ioregsel & 1)
1355	val = s->ioredtbl[index] >> 32;
1356	else
1357	val = s->ioredtbl[index] & 0xffffffff;
1358	}
1359	}
1360	#ifdef DEBUG_IOAPIC
1361	Log(("I/O APIC read: %08x = %08x\n", s->ioregsel, val));
1362	#endif
1363	}
1364	return val;
1365	}
1366
1367	static void ioapic_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val)
1368	{
1369	IOAPICState s = (IOAPICState)opaque;
1370	int index;
1371
1372	addr &= 0xff;
1373	if (addr == 0x00) {
1374	s->ioregsel = val;
1375	return;
1376	} else if (addr == 0x10) {
1377	#ifdef DEBUG_IOAPIC
1378	Log(("I/O APIC write: %08x = %08x\n", s->ioregsel, val));
1379	#endif
1380	switch (s->ioregsel) {
1381	case 0x00:
1382	s->id = (val >> 24) & 0xff;
1383	return;
1384	case 0x01:
1385	case 0x02:
1386	return;
1387	default:
1388	index = (s->ioregsel - 0x10) >> 1;
1389	if (index >= 0 && index < IOAPIC_NUM_PINS) {
1390	if (s->ioregsel & 1) {
1391	s->ioredtbl[index] &= 0xffffffff;
1392	s->ioredtbl[index] \|= (uint64_t)val << 32;
1393	} else {
1394	s->ioredtbl[index] &= ~0xffffffffULL;
1395	s->ioredtbl[index] \|= val;
1396	}
1397	ioapic_service(s);
1398	}
1399	}
1400	}
1401	}
1402
1403	#ifdef IN_RING3
1404
1405	static void ioapic_save(QEMUFile f, void opaque)
1406	{
1407	IOAPICState s = (IOAPICState)opaque;
1408	int i;
1409
1410	qemu_put_8s(f, &s->id);
1411	qemu_put_8s(f, &s->ioregsel);
1412	for (i = 0; i < IOAPIC_NUM_PINS; i++) {
1413	qemu_put_be64s(f, &s->ioredtbl[i]);
1414	}
1415	}
1416
1417	static int ioapic_load(QEMUFile f, void opaque, int version_id)
1418	{
1419	IOAPICState s = (IOAPICState)opaque;
1420	int i;
1421
1422	if (version_id != 1)
1423	return -EINVAL;
1424
1425	qemu_get_8s(f, &s->id);
1426	qemu_get_8s(f, &s->ioregsel);
1427	for (i = 0; i < IOAPIC_NUM_PINS; i++) {
1428	qemu_get_be64s(f, &s->ioredtbl[i]);
1429	}
1430	return 0;
1431	}
1432
1433	static void ioapic_reset(void *opaque)
1434	{
1435	IOAPICState s = (IOAPICState)opaque;
1436	#ifdef VBOX
1437	PPDMDEVINSR3 pDevIns = s->pDevInsHC;
1438	PCPDMIOAPICHLPR3 pIoApicHlp = s->pIoApicHlpR3;
1439	#endif
1440	int i;
1441
1442	memset(s, 0, sizeof(*s));
1443	for(i = 0; i < IOAPIC_NUM_PINS; i++)
1444	s->ioredtbl[i] = 1 << 16; /* mask LVT */
1445
1446	#ifdef VBOX
1447	if (pDevIns)
1448	{
1449	s->pDevInsHC = pDevIns;
1450	s->pDevInsGC = PDMDEVINS_2_GCPTR(pDevIns);
1451	}
1452	if (pIoApicHlp)
1453	{
1454	s->pIoApicHlpR3 = pIoApicHlp;
1455	s->pIoApicHlpGC = s->pIoApicHlpR3->pfnGetGCHelpers(pDevIns);
1456	s->pIoApicHlpR0 = s->pIoApicHlpR3->pfnGetR0Helpers(pDevIns);
1457	}
1458	#endif
1459	}
1460
1461	#endif /* IN_RING3 */
1462
1463	#ifndef VBOX
1464	static CPUReadMemoryFunc *ioapic_mem_read[3] = {
1465	ioapic_mem_readl,
1466	ioapic_mem_readl,
1467	ioapic_mem_readl,
1468	};
1469
1470	static CPUWriteMemoryFunc *ioapic_mem_write[3] = {
1471	ioapic_mem_writel,
1472	ioapic_mem_writel,
1473	ioapic_mem_writel,
1474	};
1475
1476	IOAPICState *ioapic_init(void)
1477	{
1478	IOAPICState *s;
1479	int io_memory;
1480
1481	s = qemu_mallocz(sizeof(IOAPICState));
1482	if (!s)
1483	return NULL;
1484	ioapic_reset(s);
1485	s->id = last_apic_id++;
1486
1487	io_memory = cpu_register_io_memory(0, ioapic_mem_read,
1488	ioapic_mem_write, s);
1489	cpu_register_physical_memory(0xfec00000, 0x1000, io_memory);
1490
1491	register_savevm("ioapic", 0, 1, ioapic_save, ioapic_load, s);
1492	qemu_register_reset(ioapic_reset, s);
1493
1494	return s;
1495	}
1496	#endif /* !VBOX */
1497
1498	/* LAPIC */
1499
1500	/* LAPICs MMIO is wrong, in SMP there is no relation between memory range and
1501	lapic, it's only the CPU that executes this memory access is what matters */
1502
1503	PDMBOTHCBDECL(int) apicMMIORead(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb)
1504	{
1505	APICState s = PDMINS2DATA(pDevIns, APICState );
1506
1507	STAM_COUNTER_INC(&CTXSUFF(s->StatMMIORead));
1508	switch (cb)
1509	{
1510	case 1:
1511	(uint8_t )pv = 0;
1512	break;
1513
1514	case 2:
1515	(uint16_t )pv = 0;
1516	break;
1517
1518	case 4:
1519	{
1520	#if 0 /** @note experimental */
1521	#ifndef IN_RING3
1522	uint32_t index = (GCPhysAddr >> 4) & 0xff;
1523
1524	if ( index == 0x08 /* TPR */
1525	&& ++s->ulTPRPatchAttempts < APIC_MAX_PATCH_ATTEMPTS)
1526	{
1527	#ifdef IN_GC
1528	pDevIns->pDevHlpGC->pfnPATMSetMMIOPatchInfo(pDevIns, GCPhysAddr, &s->tpr);
1529	#else
1530	RTGCPTR pDevInsGC = PDMINS2DATA_GCPTR(pDevIns);
1531	pDevIns->pDevHlpR0->pfnPATMSetMMIOPatchInfo(pDevIns, GCPhysAddr, pDevIns + RT_OFFSETOF(APICState, tpr));
1532	#endif
1533	return VINF_PATM_HC_MMIO_PATCH_READ;
1534	}
1535	#endif
1536	#endif /* experimental */
1537	APIC_LOCK(s, VINF_IOM_HC_MMIO_READ);
1538	(uint32_t )pv = apic_mem_readl(s, GCPhysAddr);
1539	APIC_UNLOCK(s);
1540	break;
1541	}
1542	default:
1543	AssertReleaseMsgFailed(("cb=%d\n", cb)); /* for now we assume simple accesses. */
1544	return VERR_INTERNAL_ERROR;
1545	}
1546	return VINF_SUCCESS;
1547	}
1548
1549	PDMBOTHCBDECL(int) apicMMIOWrite(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb)
1550	{
1551	APICState s = PDMINS2DATA(pDevIns, APICState );
1552
1553	STAM_COUNTER_INC(&CTXSUFF(s->StatMMIOWrite));
1554	switch (cb)
1555	{
1556	case 1:
1557	case 2:
1558	/* ignore */
1559	break;
1560
1561	case 4:
1562	{
1563	int rc;
1564	APIC_LOCK(s, VINF_IOM_HC_MMIO_WRITE);
1565	rc = apic_mem_writel(s, GCPhysAddr, (uint32_t )pv);
1566	APIC_UNLOCK(s);
1567	return rc;
1568	}
1569
1570	default:
1571	AssertReleaseMsgFailed(("cb=%d\n", cb)); /* for now we assume simple accesses. */
1572	return VERR_INTERNAL_ERROR;
1573	}
1574	return VINF_SUCCESS;
1575	}
1576
1577	#ifdef IN_RING3
1578
1579	/**
1580	* @copydoc FNSSMDEVSAVEEXEC
1581	*/
1582	static DECLCALLBACK(int) apicSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
1583	{
1584	APICState s = PDMINS2DATA(pDevIns, APICState );
1585	apic_save(pSSMHandle, s);
1586	return TMR3TimerSave(s->CTXSUFF(pTimer), pSSMHandle);
1587	}
1588
1589	/**
1590	* @copydoc FNSSMDEVLOADEXEC
1591	*/
1592	static DECLCALLBACK(int) apicLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle, uint32_t u32Version)
1593	{
1594	APICState s = PDMINS2DATA(pDevIns, APICState );
1595	if (apic_load(pSSMHandle, s, u32Version)) {
1596	AssertFailed();
1597	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1598	}
1599	return TMR3TimerLoad(s->CTXSUFF(pTimer), pSSMHandle);
1600	}
1601
1602	/**
1603	* @copydoc FNPDMDEVRESET
1604	*/
1605	static DECLCALLBACK(void) apicReset(PPDMDEVINS pDevIns)
1606	{
1607	APICState s = PDMINS2DATA(pDevIns, APICState );
1608	#ifdef VBOX_WITH_PDM_LOCK
1609	s->pApicHlpR3->pfnLock(pDevIns, VERR_INTERNAL_ERROR);
1610	#endif
1611	apic_reset(s);
1612	/* Clear any pending APIC interrupt action flag. */
1613	s->pApicHlpR3->pfnClearInterruptFF(pDevIns);
1614	APIC_UNLOCK(s);
1615	}
1616
1617	/**
1618	* @copydoc FNPDMDEVRELOCATE
1619	*/
1620	static DECLCALLBACK(void) apicRelocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
1621	{
1622	APICState pData = PDMINS2DATA(pDevIns, APICState );
1623	pData->pDevInsGC = PDMDEVINS_2_GCPTR(pDevIns);
1624	pData->pApicHlpGC = pData->pApicHlpR3->pfnGetGCHelpers(pDevIns);
1625	pData->pTimerGC = TMTimerGCPtr(pData->CTXSUFF(pTimer));
1626	}
1627
1628	/**
1629	* @copydoc FNPDMDEVCONSTRUCT
1630	*/
1631	static DECLCALLBACK(int) apicConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfgHandle)
1632	{
1633	APICState pData = PDMINS2DATA(pDevIns, APICState );
1634	PDMAPICREG ApicReg;
1635	int rc;
1636	int i;
1637	bool fIOAPIC;
1638	bool fGCEnabled;
1639	bool fR0Enabled;
1640	Assert(iInstance == 0);
1641
1642	/*
1643	* Validate configuration.
1644	*/
1645	if (!CFGMR3AreValuesValid(pCfgHandle, "IOAPIC\0GCEnabled\0R0Enabled\0"))
1646	return VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
1647
1648	rc = CFGMR3QueryBool (pCfgHandle, "IOAPIC", &fIOAPIC);
1649	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1650	fIOAPIC = true;
1651	else if (VBOX_FAILURE (rc))
1652	return PDMDEV_SET_ERROR(pDevIns, rc,
1653	N_("Configuration error: Failed to read \"IOAPIC\""));
1654
1655	rc = CFGMR3QueryBool(pCfgHandle, "GCEnabled", &fGCEnabled);
1656	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1657	fGCEnabled = true;
1658	else
1659	return PDMDEV_SET_ERROR(pDevIns, rc,
1660	N_("Configuration error: Failed to query boolean value \"GCEnabled\""));
1661	Log(("APIC: fGCEnabled=%d\n", fGCEnabled));
1662
1663	rc = CFGMR3QueryBool(pCfgHandle, "R0Enabled", &fR0Enabled);
1664	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1665	fR0Enabled = true;
1666	else
1667	return PDMDEV_SET_ERROR(pDevIns, rc,
1668	N_("Configuration error: Failed to query boolean value \"R0Enabled\""));
1669	Log(("APIC: fR0Enabled=%d\n", fR0Enabled));
1670
1671	/*
1672	* Init the data.
1673	*/
1674	pData->pDevInsHC = pDevIns;
1675	pData->pDevInsGC = PDMDEVINS_2_GCPTR(pDevIns);
1676	pData->apicbase = 0xfee00000 \| MSR_IA32_APICBASE_BSP \| MSR_IA32_APICBASE_ENABLE;
1677	for (i = 0; i < APIC_LVT_NB; i++)
1678	pData->lvt[i] = 1 << 16; /* mask LVT */
1679	pData->spurious_vec = 0xff;
1680
1681	/*
1682	* Register the APIC.
1683	*/
1684	ApicReg.u32Version = PDM_APICREG_VERSION;
1685	ApicReg.pfnGetInterruptHC = apicGetInterrupt;
1686	ApicReg.pfnSetBaseHC = apicSetBase;
1687	ApicReg.pfnGetBaseHC = apicGetBase;
1688	ApicReg.pfnSetTPRHC = apicSetTPR;
1689	ApicReg.pfnGetTPRHC = apicGetTPR;
1690	ApicReg.pfnBusDeliverHC = apicBusDeliverCallback;
1691	if (fGCEnabled) {
1692	ApicReg.pszGetInterruptGC = "apicGetInterrupt";
1693	ApicReg.pszSetBaseGC = "apicSetBase";
1694	ApicReg.pszGetBaseGC = "apicGetBase";
1695	ApicReg.pszSetTPRGC = "apicSetTPR";
1696	ApicReg.pszGetTPRGC = "apicGetTPR";
1697	ApicReg.pszBusDeliverGC = "apicBusDeliverCallback";
1698	} else {
1699	ApicReg.pszGetInterruptGC = NULL;
1700	ApicReg.pszSetBaseGC = NULL;
1701	ApicReg.pszGetBaseGC = NULL;
1702	ApicReg.pszSetTPRGC = NULL;
1703	ApicReg.pszGetTPRGC = NULL;
1704	ApicReg.pszBusDeliverGC = NULL;
1705	}
1706	if (fR0Enabled) {
1707	ApicReg.pszGetInterruptR0 = "apicGetInterrupt";
1708	ApicReg.pszSetBaseR0 = "apicSetBase";
1709	ApicReg.pszGetBaseR0 = "apicGetBase";
1710	ApicReg.pszSetTPRR0 = "apicSetTPR";
1711	ApicReg.pszGetTPRR0 = "apicGetTPR";
1712	ApicReg.pszBusDeliverR0 = "apicBusDeliverCallback";
1713	} else {
1714	ApicReg.pszGetInterruptR0 = NULL;
1715	ApicReg.pszSetBaseR0 = NULL;
1716	ApicReg.pszGetBaseR0 = NULL;
1717	ApicReg.pszSetTPRR0 = NULL;
1718	ApicReg.pszGetTPRR0 = NULL;
1719	ApicReg.pszBusDeliverR0 = NULL;
1720	}
1721
1722	Assert(pDevIns->pDevHlp->pfnAPICRegister);
1723	rc = pDevIns->pDevHlp->pfnAPICRegister(pDevIns, &ApicReg, &pData->pApicHlpR3);
1724	if (VBOX_FAILURE(rc))
1725	{
1726	AssertMsgFailed(("APICRegister -> %Vrc\n", rc));
1727	return rc;
1728	}
1729	pData->pApicHlpGC = pData->pApicHlpR3->pfnGetGCHelpers(pDevIns);
1730
1731	/*
1732	* The the CPUID feature bit.
1733	*/
1734	uint32_t u32Eax, u32Ebx, u32Ecx, u32Edx;
1735	PDMDevHlpGetCpuId(pDevIns, 0, &u32Eax, &u32Ebx, &u32Ecx, &u32Edx);
1736	if (u32Eax >= 1)
1737	{
1738	if ( fIOAPIC /* If IOAPIC is enabled, enable Local APIC in any case */
1739	\|\| ( u32Ebx == X86_CPUID_VENDOR_INTEL_EBX
1740	&& u32Ecx == X86_CPUID_VENDOR_INTEL_ECX
1741	&& u32Edx == X86_CPUID_VENDOR_INTEL_EDX /* GenuineIntel */)
1742	\|\| ( u32Ebx == X86_CPUID_VENDOR_AMD_EBX
1743	&& u32Ecx == X86_CPUID_VENDOR_AMD_ECX
1744	&& u32Edx == X86_CPUID_VENDOR_AMD_EDX /* AuthenticAMD */))
1745	{
1746	LogRel(("Activating Local APIC\n"));
1747	pData->pApicHlpR3->pfnChangeFeature(pDevIns, true);
1748	}
1749	}
1750
1751	/*
1752	* Register the MMIO range.
1753	*/
1754	rc = PDMDevHlpMMIORegister(pDevIns, pData->apicbase & ~0xfff, 0x1000, pData,
1755	apicMMIOWrite, apicMMIORead, NULL, "APIC Memory");
1756	if (VBOX_FAILURE(rc))
1757	return rc;
1758
1759	if (fGCEnabled) {
1760	rc = PDMDevHlpMMIORegisterGC(pDevIns, pData->apicbase & ~0xfff, 0x1000, 0,
1761	"apicMMIOWrite", "apicMMIORead", NULL, "APIC Memory");
1762	if (VBOX_FAILURE(rc))
1763	return rc;
1764	}
1765
1766	if (fR0Enabled) {
1767	pData->pApicHlpR0 = pData->pApicHlpR3->pfnGetR0Helpers(pDevIns);
1768
1769	rc = PDMDevHlpMMIORegisterR0(pDevIns, pData->apicbase & ~0xfff, 0x1000, 0,
1770	"apicMMIOWrite", "apicMMIORead", NULL, "APIC Memory");
1771	if (VBOX_FAILURE(rc))
1772	return rc;
1773	}
1774
1775	/*
1776	* Create the APIC timer.
1777	*/
1778	rc = PDMDevHlpTMTimerCreate(pDevIns, TMCLOCK_VIRTUAL_SYNC, apicTimer,
1779	"APIC Timer", &pData->CTXSUFF(pTimer));
1780	if (VBOX_FAILURE(rc))
1781	return rc;
1782	pData->pTimerGC = TMTimerGCPtr(pData->CTXSUFF(pTimer));
1783
1784	/*
1785	* Saved state.
1786	*/
1787	rc = PDMDevHlpSSMRegister(pDevIns, pDevIns->pDevReg->szDeviceName, iInstance, 1 /* version */,
1788	sizeof(*pData), NULL, apicSaveExec, NULL, NULL, apicLoadExec, NULL);
1789	if (VBOX_FAILURE(rc))
1790	return rc;
1791
1792	#ifdef VBOX_WITH_STATISTICS
1793	/*
1794	* Statistics.
1795	*/
1796	PDMDevHlpSTAMRegister(pDevIns, &pData->StatMMIOReadGC, STAMTYPE_COUNTER, "/PDM/APIC/MMIOReadGC", STAMUNIT_OCCURENCES, "Number of APIC MMIO reads in GC.");
1797	PDMDevHlpSTAMRegister(pDevIns, &pData->StatMMIOReadHC, STAMTYPE_COUNTER, "/PDM/APIC/MMIOReadHC", STAMUNIT_OCCURENCES, "Number of APIC MMIO reads in HC.");
1798	PDMDevHlpSTAMRegister(pDevIns, &pData->StatMMIOWriteGC, STAMTYPE_COUNTER, "/PDM/APIC/MMIOWriteGC", STAMUNIT_OCCURENCES, "Number of APIC MMIO writes in GC.");
1799	PDMDevHlpSTAMRegister(pDevIns, &pData->StatMMIOWriteHC, STAMTYPE_COUNTER, "/PDM/APIC/MMIOWriteHC", STAMUNIT_OCCURENCES, "Number of APIC MMIO writes in HC.");
1800	PDMDevHlpSTAMRegister(pDevIns, &pData->StatClearedActiveIrq, STAMTYPE_COUNTER, "/PDM/APIC/Masked/ActiveIRQ", STAMUNIT_OCCURENCES, "Number of cleared irqs.");
1801	#endif
1802
1803	return VINF_SUCCESS;
1804	}
1805
1806
1807	/**
1808	* APIC device registration structure.
1809	*/
1810	const PDMDEVREG g_DeviceAPIC =
1811	{
1812	/* u32Version */
1813	PDM_DEVREG_VERSION,
1814	/* szDeviceName */
1815	"apic",
1816	/* szGCMod */
1817	"VBoxDD2GC.gc",
1818	/* szR0Mod */
1819	"VBoxDD2R0.r0",
1820	/* pszDescription */
1821	"Advanced Programmable Interrupt Controller (APIC) Device",
1822	/* fFlags */
1823	PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_GUEST_BITS_32_64 \| PDM_DEVREG_FLAGS_PAE36 \| PDM_DEVREG_FLAGS_GC \| PDM_DEVREG_FLAGS_R0,
1824	/* fClass */
1825	PDM_DEVREG_CLASS_PIC,
1826	/* cMaxInstances */
1827	1,
1828	/* cbInstance */
1829	sizeof(APICState),
1830	/* pfnConstruct */
1831	apicConstruct,
1832	/* pfnDestruct */
1833	NULL,
1834	/* pfnRelocate */
1835	apicRelocate,
1836	/* pfnIOCtl */
1837	NULL,
1838	/* pfnPowerOn */
1839	NULL,
1840	/* pfnReset */
1841	apicReset,
1842	/* pfnSuspend */
1843	NULL,
1844	/* pfnResume */
1845	NULL,
1846	/* pfnAttach */
1847	NULL,
1848	/* pfnDetach */
1849	NULL,
1850	/* pfnQueryInterface. */
1851	NULL
1852	};
1853
1854	#endif /* IN_RING3 */
1855
1856
1857
1858
1859	/* IOAPIC */
1860
1861	PDMBOTHCBDECL(int) ioapicMMIORead(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb)
1862	{
1863	IOAPICState s = PDMINS2DATA(pDevIns, IOAPICState );
1864	IOAPIC_LOCK(s, VINF_IOM_HC_MMIO_READ);
1865
1866	STAM_COUNTER_INC(&CTXSUFF(s->StatMMIORead));
1867	switch (cb)
1868	{
1869	case 1:
1870	(uint8_t )pv = ioapic_mem_readl(s, GCPhysAddr);
1871	break;
1872
1873	case 2:
1874	(uint16_t )pv = ioapic_mem_readl(s, GCPhysAddr);
1875	break;
1876
1877	case 4:
1878	(uint32_t )pv = ioapic_mem_readl(s, GCPhysAddr);
1879	break;
1880
1881	default:
1882	AssertReleaseMsgFailed(("cb=%d\n", cb)); /* for now we assume simple accesses. */
1883	IOAPIC_UNLOCK(s);
1884	return VERR_INTERNAL_ERROR;
1885	}
1886	IOAPIC_UNLOCK(s);
1887	return VINF_SUCCESS;
1888	}
1889
1890	PDMBOTHCBDECL(int) ioapicMMIOWrite(PPDMDEVINS pDevIns, void pvUser, RTGCPHYS GCPhysAddr, void pv, unsigned cb)
1891	{
1892	IOAPICState s = PDMINS2DATA(pDevIns, IOAPICState );
1893
1894	STAM_COUNTER_INC(&CTXSUFF(s->StatMMIOWrite));
1895	switch (cb)
1896	{
1897	case 1:
1898	case 2:
1899	case 4:
1900	IOAPIC_LOCK(s, VINF_IOM_HC_MMIO_WRITE);
1901	ioapic_mem_writel(s, GCPhysAddr, (uint32_t )pv);
1902	IOAPIC_UNLOCK(s);
1903	break;
1904
1905	default:
1906	AssertReleaseMsgFailed(("cb=%d\n", cb)); /* for now we assume simple accesses. */
1907	return VERR_INTERNAL_ERROR;
1908	}
1909	return VINF_SUCCESS;
1910	}
1911
1912	PDMBOTHCBDECL(void) ioapicSetIrq(PPDMDEVINS pDevIns, int iIrq, int iLevel)
1913	{
1914	IOAPICState pThis = PDMINS2DATA(pDevIns, IOAPICState );
1915	STAM_COUNTER_INC(&pThis->CTXSUFF(StatSetIrq));
1916	LogFlow(("ioapicSetIrq: iIrq=%d iLevel=%d\n", iIrq, iLevel));
1917	ioapic_set_irq(pThis, iIrq, iLevel);
1918	}
1919
1920
1921	#ifdef IN_RING3
1922
1923	/**
1924	* @copydoc FNSSMDEVSAVEEXEC
1925	*/
1926	static DECLCALLBACK(int) ioapicSaveExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle)
1927	{
1928	IOAPICState s = PDMINS2DATA(pDevIns, IOAPICState );
1929	ioapic_save(pSSMHandle, s);
1930	return VINF_SUCCESS;
1931	}
1932
1933	/**
1934	* @copydoc FNSSMDEVLOADEXEC
1935	*/
1936	static DECLCALLBACK(int) ioapicLoadExec(PPDMDEVINS pDevIns, PSSMHANDLE pSSMHandle, uint32_t u32Version)
1937	{
1938	IOAPICState s = PDMINS2DATA(pDevIns, IOAPICState );
1939
1940	if (ioapic_load(pSSMHandle, s, u32Version)) {
1941	AssertFailed();
1942	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1943	}
1944
1945	return VINF_SUCCESS;
1946	}
1947
1948	/**
1949	* @copydoc FNPDMDEVRESET
1950	*/
1951	static DECLCALLBACK(void) ioapicReset(PPDMDEVINS pDevIns)
1952	{
1953	IOAPICState s = PDMINS2DATA(pDevIns, IOAPICState );
1954	#ifdef VBOX_WITH_PDM_LOCK
1955	s->pIoApicHlpR3->pfnLock(pDevIns, VERR_INTERNAL_ERROR);
1956	#endif
1957	ioapic_reset(s);
1958	IOAPIC_UNLOCK(s);
1959	}
1960
1961	/**
1962	* @copydoc FNPDMDEVRELOCATE
1963	*/
1964	static DECLCALLBACK(void) ioapicRelocate(PPDMDEVINS pDevIns, RTGCINTPTR offDelta)
1965	{
1966	IOAPICState s = PDMINS2DATA(pDevIns, IOAPICState );
1967	s->pDevInsGC = PDMDEVINS_2_GCPTR(pDevIns);
1968	s->pIoApicHlpGC = s->pIoApicHlpR3->pfnGetGCHelpers(pDevIns);
1969	}
1970
1971	/**
1972	* @copydoc FNPDMDEVCONSTRUCT
1973	*/
1974	static DECLCALLBACK(int) ioapicConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfgHandle)
1975	{
1976	IOAPICState s = PDMINS2DATA(pDevIns, IOAPICState );
1977	PDMIOAPICREG IoApicReg;
1978	bool fGCEnabled;
1979	bool fR0Enabled;
1980	int rc;
1981
1982	Assert(iInstance == 0);
1983
1984	/*
1985	* Validate and read the configuration.
1986	*/
1987	if (!CFGMR3AreValuesValid(pCfgHandle, "GCEnabled\0R0Enabled\0"))
1988	return VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
1989
1990	rc = CFGMR3QueryBool(pCfgHandle, "GCEnabled", &fGCEnabled);
1991	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1992	fGCEnabled = true;
1993	else if (VBOX_FAILURE(rc))
1994	return PDMDEV_SET_ERROR(pDevIns, rc,
1995	N_("Configuration error: Failed to query boolean value \"GCEnabled\""));
1996	Log(("IOAPIC: fGCEnabled=%d\n", fGCEnabled));
1997
1998	rc = CFGMR3QueryBool(pCfgHandle, "R0Enabled", &fR0Enabled);
1999	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
2000	fR0Enabled = true;
2001	else if (VBOX_FAILURE(rc))
2002	return PDMDEV_SET_ERROR(pDevIns, rc,
2003	N_("Configuration error: Failed to query boolean value \"R0Enabled\""));
2004	Log(("IOAPIC: fR0Enabled=%d\n", fR0Enabled));
2005
2006	/*
2007	* Initialize the state data.
2008	*/
2009	s->pDevInsHC = pDevIns;
2010	s->pDevInsGC = PDMDEVINS_2_GCPTR(pDevIns);
2011	ioapic_reset(s);
2012	s->id = 0;
2013
2014	/*
2015	* Register the IOAPIC and get helpers.
2016	*/
2017	IoApicReg.u32Version = PDM_IOAPICREG_VERSION;
2018	IoApicReg.pfnSetIrqHC = ioapicSetIrq;
2019	IoApicReg.pszSetIrqGC = fGCEnabled ? "ioapicSetIrq" : NULL;
2020	IoApicReg.pszSetIrqR0 = fR0Enabled ? "ioapicSetIrq" : NULL;
2021	rc = pDevIns->pDevHlp->pfnIOAPICRegister(pDevIns, &IoApicReg, &s->pIoApicHlpR3);
2022	if (VBOX_FAILURE(rc))
2023	{
2024	AssertMsgFailed(("IOAPICRegister -> %Vrc\n", rc));
2025	return rc;
2026	}
2027	s->pIoApicHlpGC = s->pIoApicHlpR3->pfnGetGCHelpers(pDevIns);
2028
2029	/*
2030	* Register MMIO callbacks and saved state.
2031	*/
2032	rc = PDMDevHlpMMIORegister(pDevIns, 0xfec00000, 0x1000, s,
2033	ioapicMMIOWrite, ioapicMMIORead, NULL, "I/O APIC Memory");
2034	if (VBOX_FAILURE(rc))
2035	return rc;
2036
2037	if (fGCEnabled) {
2038	rc = PDMDevHlpMMIORegisterGC(pDevIns, 0xfec00000, 0x1000, 0,
2039	"ioapicMMIOWrite", "ioapicMMIORead", NULL, "I/O APIC Memory");
2040	if (VBOX_FAILURE(rc))
2041	return rc;
2042	}
2043
2044	if (fR0Enabled) {
2045	s->pIoApicHlpR0 = s->pIoApicHlpR3->pfnGetR0Helpers(pDevIns);
2046
2047	rc = PDMDevHlpMMIORegisterR0(pDevIns, 0xfec00000, 0x1000, 0,
2048	"ioapicMMIOWrite", "ioapicMMIORead", NULL, "I/O APIC Memory");
2049	if (VBOX_FAILURE(rc))
2050	return rc;
2051	}
2052
2053	rc = PDMDevHlpSSMRegister(pDevIns, pDevIns->pDevReg->szDeviceName, iInstance, 1 /* version */,
2054	sizeof(*s), NULL, ioapicSaveExec, NULL, NULL, ioapicLoadExec, NULL);
2055	if (VBOX_FAILURE(rc))
2056	return rc;
2057
2058	#ifdef VBOX_WITH_STATISTICS
2059	/*
2060	* Statistics.
2061	*/
2062	PDMDevHlpSTAMRegister(pDevIns, &s->StatMMIOReadGC, STAMTYPE_COUNTER, "/PDM/IOAPIC/MMIOReadGC", STAMUNIT_OCCURENCES, "Number of IOAPIC MMIO reads in GC.");
2063	PDMDevHlpSTAMRegister(pDevIns, &s->StatMMIOReadHC, STAMTYPE_COUNTER, "/PDM/IOAPIC/MMIOReadHC", STAMUNIT_OCCURENCES, "Number of IOAPIC MMIO reads in HC.");
2064	PDMDevHlpSTAMRegister(pDevIns, &s->StatMMIOWriteGC, STAMTYPE_COUNTER, "/PDM/IOAPIC/MMIOWriteGC", STAMUNIT_OCCURENCES, "Number of IOAPIC MMIO writes in GC.");
2065	PDMDevHlpSTAMRegister(pDevIns, &s->StatMMIOWriteHC, STAMTYPE_COUNTER, "/PDM/IOAPIC/MMIOWriteHC", STAMUNIT_OCCURENCES, "Number of IOAPIC MMIO writes in HC.");
2066	PDMDevHlpSTAMRegister(pDevIns, &s->StatSetIrqGC, STAMTYPE_COUNTER, "/PDM/IOAPIC/SetIrqGC", STAMUNIT_OCCURENCES, "Number of IOAPIC SetIrq calls in GC.");
2067	PDMDevHlpSTAMRegister(pDevIns, &s->StatSetIrqHC, STAMTYPE_COUNTER, "/PDM/IOAPIC/SetIrqHC", STAMUNIT_OCCURENCES, "Number of IOAPIC SetIrq calls in HC.");
2068	#endif
2069
2070	return VINF_SUCCESS;
2071	}
2072
2073	/**
2074	* IO APIC device registration structure.
2075	*/
2076	const PDMDEVREG g_DeviceIOAPIC =
2077	{
2078	/* u32Version */
2079	PDM_DEVREG_VERSION,
2080	/* szDeviceName */
2081	"ioapic",
2082	/* szGCMod */
2083	"VBoxDD2GC.gc",
2084	/* szR0Mod */
2085	"VBoxDD2R0.r0",
2086	/* pszDescription */
2087	"I/O Advanced Programmable Interrupt Controller (IO-APIC) Device",
2088	/* fFlags */
2089	PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_GUEST_BITS_32_64 \| PDM_DEVREG_FLAGS_PAE36 \| PDM_DEVREG_FLAGS_GC \| PDM_DEVREG_FLAGS_R0,
2090	/* fClass */
2091	PDM_DEVREG_CLASS_PIC,
2092	/* cMaxInstances */
2093	1,
2094	/* cbInstance */
2095	sizeof(IOAPICState),
2096	/* pfnConstruct */
2097	ioapicConstruct,
2098	/* pfnDestruct */
2099	NULL,
2100	/* pfnRelocate */
2101	ioapicRelocate,
2102	/* pfnIOCtl */
2103	NULL,
2104	/* pfnPowerOn */
2105	NULL,
2106	/* pfnReset */
2107	ioapicReset,
2108	/* pfnSuspend */
2109	NULL,
2110	/* pfnResume */
2111	NULL,
2112	/* pfnAttach */
2113	NULL,
2114	/* pfnDetach */
2115	NULL,
2116	/* pfnQueryInterface. */
2117	NULL,
2118	/* pfnInitComplete */
2119	NULL,
2120	/* pfnPowerOff */
2121	NULL
2122	};
2123
2124	#endif /* IN_RING3 */
2125	#endif /* !VBOX_DEVICE_STRUCT_TESTCASE */
2126

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source: vbox/trunk/src/VBox/Devices/PC/DevAPIC.cpp@ 6738

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