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22#include "qemu/osdep.h"
23#include "qapi/error.h"
24#include "monitor/monitor.h"
25#include "hw/i386/ioapic.h"
26#include "hw/i386/ioapic_internal.h"
27#include "hw/sysbus.h"
28
29
30
31
32
33
34
35int ioapic_no;
36
37static void ioapic_irr_dump(Monitor *mon, const char *name, uint32_t bitmap)
38{
39 int i;
40
41 monitor_printf(mon, "%-10s ", name);
42 if (bitmap == 0) {
43 monitor_printf(mon, "(none)\n");
44 return;
45 }
46 for (i = 0; i < IOAPIC_NUM_PINS; i++) {
47 if (bitmap & (1 << i)) {
48 monitor_printf(mon, "%-2u ", i);
49 }
50 }
51 monitor_printf(mon, "\n");
52}
53
54void ioapic_print_redtbl(Monitor *mon, IOAPICCommonState *s)
55{
56 static const char *delm_str[] = {
57 "fixed", "lowest", "SMI", "...", "NMI", "INIT", "...", "extINT"};
58 uint32_t remote_irr = 0;
59 int i;
60
61 monitor_printf(mon, "ioapic ver=0x%x id=0x%02x sel=0x%02x",
62 s->version, s->id, s->ioregsel);
63 if (s->ioregsel) {
64 monitor_printf(mon, " (redir[%u])\n",
65 (s->ioregsel - IOAPIC_REG_REDTBL_BASE) >> 1);
66 } else {
67 monitor_printf(mon, "\n");
68 }
69 for (i = 0; i < IOAPIC_NUM_PINS; i++) {
70 uint64_t entry = s->ioredtbl[i];
71 uint32_t delm = (uint32_t)((entry & IOAPIC_LVT_DELIV_MODE) >>
72 IOAPIC_LVT_DELIV_MODE_SHIFT);
73 monitor_printf(mon, "pin %-2u 0x%016"PRIx64" dest=%"PRIx64
74 " vec=%-3"PRIu64" %s %-5s %-6s %-6s %s\n",
75 i, entry,
76 (entry >> IOAPIC_LVT_DEST_SHIFT) &
77 (entry & IOAPIC_LVT_DEST_MODE ? 0xff : 0xf),
78 entry & IOAPIC_VECTOR_MASK,
79 entry & IOAPIC_LVT_POLARITY ? "active-lo" : "active-hi",
80 entry & IOAPIC_LVT_TRIGGER_MODE ? "level" : "edge",
81 entry & IOAPIC_LVT_MASKED ? "masked" : "",
82 delm_str[delm],
83 entry & IOAPIC_LVT_DEST_MODE ? "logical" : "physical");
84
85 remote_irr |= entry & IOAPIC_LVT_TRIGGER_MODE ?
86 (entry & IOAPIC_LVT_REMOTE_IRR ? (1 << i) : 0) : 0;
87 }
88 ioapic_irr_dump(mon, "IRR", s->irr);
89 ioapic_irr_dump(mon, "Remote IRR", remote_irr);
90}
91
92void ioapic_reset_common(DeviceState *dev)
93{
94 IOAPICCommonState *s = IOAPIC_COMMON(dev);
95 int i;
96
97 s->id = 0;
98 s->ioregsel = 0;
99 s->irr = 0;
100 for (i = 0; i < IOAPIC_NUM_PINS; i++) {
101 s->ioredtbl[i] = 1 << IOAPIC_LVT_MASKED_SHIFT;
102 }
103}
104
105static void ioapic_dispatch_pre_save(void *opaque)
106{
107 IOAPICCommonState *s = IOAPIC_COMMON(opaque);
108 IOAPICCommonClass *info = IOAPIC_COMMON_GET_CLASS(s);
109
110 if (info->pre_save) {
111 info->pre_save(s);
112 }
113}
114
115static int ioapic_dispatch_post_load(void *opaque, int version_id)
116{
117 IOAPICCommonState *s = IOAPIC_COMMON(opaque);
118 IOAPICCommonClass *info = IOAPIC_COMMON_GET_CLASS(s);
119
120 if (info->post_load) {
121 info->post_load(s);
122 }
123 return 0;
124}
125
126static void ioapic_common_realize(DeviceState *dev, Error **errp)
127{
128 IOAPICCommonState *s = IOAPIC_COMMON(dev);
129 IOAPICCommonClass *info;
130
131 if (ioapic_no >= MAX_IOAPICS) {
132 error_setg(errp, "Only %d ioapics allowed", MAX_IOAPICS);
133 return;
134 }
135
136 info = IOAPIC_COMMON_GET_CLASS(s);
137 info->realize(dev, errp);
138
139 sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->io_memory);
140 ioapic_no++;
141}
142
143static const VMStateDescription vmstate_ioapic_common = {
144 .name = "ioapic",
145 .version_id = 3,
146 .minimum_version_id = 1,
147 .pre_save = ioapic_dispatch_pre_save,
148 .post_load = ioapic_dispatch_post_load,
149 .fields = (VMStateField[]) {
150 VMSTATE_UINT8(id, IOAPICCommonState),
151 VMSTATE_UINT8(ioregsel, IOAPICCommonState),
152 VMSTATE_UNUSED_V(2, 8),
153 VMSTATE_UINT32_V(irr, IOAPICCommonState, 2),
154 VMSTATE_UINT64_ARRAY(ioredtbl, IOAPICCommonState, IOAPIC_NUM_PINS),
155 VMSTATE_END_OF_LIST()
156 }
157};
158
159static void ioapic_common_class_init(ObjectClass *klass, void *data)
160{
161 DeviceClass *dc = DEVICE_CLASS(klass);
162
163 dc->realize = ioapic_common_realize;
164 dc->vmsd = &vmstate_ioapic_common;
165}
166
167static const TypeInfo ioapic_common_type = {
168 .name = TYPE_IOAPIC_COMMON,
169 .parent = TYPE_SYS_BUS_DEVICE,
170 .instance_size = sizeof(IOAPICCommonState),
171 .class_size = sizeof(IOAPICCommonClass),
172 .class_init = ioapic_common_class_init,
173 .abstract = true,
174};
175
176static void ioapic_common_register_types(void)
177{
178 type_register_static(&ioapic_common_type);
179}
180
181type_init(ioapic_common_register_types)
182