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Commit | Line | Data |
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3a553fc6 | 1 | /* |
7b35d0c4 | 2 | * QEMU S390x floating interrupt controller (flic) |
3a553fc6 JF |
3 | * |
4 | * Copyright 2014 IBM Corp. | |
5 | * Author(s): Jens Freimann <jfrei@linux.vnet.ibm.com> | |
7b35d0c4 | 6 | * Cornelia Huck <cornelia.huck@de.ibm.com> |
3a553fc6 JF |
7 | * |
8 | * This work is licensed under the terms of the GNU GPL, version 2 or (at | |
9 | * your option) any later version. See the COPYING file in the top-level | |
10 | * directory. | |
11 | */ | |
12 | ||
90191d07 | 13 | #include "qemu/osdep.h" |
3a553fc6 JF |
14 | #include "qemu/error-report.h" |
15 | #include "hw/sysbus.h" | |
3a553fc6 JF |
16 | #include "hw/s390x/s390_flic.h" |
17 | #include "trace.h" | |
e61cc6b5 HP |
18 | #include "hw/qdev.h" |
19 | #include "qapi/error.h" | |
517ff12c | 20 | #include "hw/s390x/s390-virtio-ccw.h" |
3a553fc6 | 21 | |
7b35d0c4 | 22 | S390FLICState *s390_get_flic(void) |
819bd309 | 23 | { |
bc66d6cb | 24 | static S390FLICState *fs; |
819bd309 | 25 | |
7b35d0c4 | 26 | if (!fs) { |
bc66d6cb FL |
27 | fs = S390_FLIC_COMMON(object_resolve_path(TYPE_KVM_S390_FLIC, NULL)); |
28 | if (!fs) { | |
29 | fs = S390_FLIC_COMMON(object_resolve_path(TYPE_QEMU_S390_FLIC, | |
30 | NULL)); | |
31 | } | |
819bd309 | 32 | } |
7b35d0c4 | 33 | return fs; |
819bd309 DD |
34 | } |
35 | ||
7b35d0c4 | 36 | void s390_flic_init(void) |
3a553fc6 | 37 | { |
7b35d0c4 | 38 | DeviceState *dev; |
3a553fc6 | 39 | |
7b35d0c4 CH |
40 | dev = s390_flic_kvm_create(); |
41 | if (!dev) { | |
42 | dev = qdev_create(NULL, TYPE_QEMU_S390_FLIC); | |
43 | object_property_add_child(qdev_get_machine(), TYPE_QEMU_S390_FLIC, | |
44 | OBJECT(dev), NULL); | |
3a553fc6 | 45 | } |
ae4a2bd7 | 46 | qdev_init_nofail(dev); |
3a553fc6 JF |
47 | } |
48 | ||
03cf077a CH |
49 | static int qemu_s390_register_io_adapter(S390FLICState *fs, uint32_t id, |
50 | uint8_t isc, bool swap, | |
51 | bool is_maskable) | |
52 | { | |
53 | /* nothing to do */ | |
54 | return 0; | |
55 | } | |
56 | ||
d426d9fb CH |
57 | static int qemu_s390_io_adapter_map(S390FLICState *fs, uint32_t id, |
58 | uint64_t map_addr, bool do_map) | |
59 | { | |
60 | /* nothing to do */ | |
61 | return 0; | |
62 | } | |
63 | ||
64 | static int qemu_s390_add_adapter_routes(S390FLICState *fs, | |
65 | AdapterRoutes *routes) | |
66 | { | |
67 | return -ENOSYS; | |
68 | } | |
69 | ||
70 | static void qemu_s390_release_adapter_routes(S390FLICState *fs, | |
71 | AdapterRoutes *routes) | |
72 | { | |
73 | } | |
74 | ||
9eccb862 HP |
75 | static int qemu_s390_clear_io_flic(S390FLICState *fs, uint16_t subchannel_id, |
76 | uint16_t subchannel_nr) | |
77 | { | |
78 | /* Fixme TCG */ | |
79 | return -ENOSYS; | |
80 | } | |
81 | ||
03cf077a CH |
82 | static void qemu_s390_flic_class_init(ObjectClass *oc, void *data) |
83 | { | |
84 | S390FLICStateClass *fsc = S390_FLIC_COMMON_CLASS(oc); | |
85 | ||
86 | fsc->register_io_adapter = qemu_s390_register_io_adapter; | |
d426d9fb CH |
87 | fsc->io_adapter_map = qemu_s390_io_adapter_map; |
88 | fsc->add_adapter_routes = qemu_s390_add_adapter_routes; | |
89 | fsc->release_adapter_routes = qemu_s390_release_adapter_routes; | |
9eccb862 | 90 | fsc->clear_io_irq = qemu_s390_clear_io_flic; |
03cf077a CH |
91 | } |
92 | ||
e61cc6b5 HP |
93 | static Property s390_flic_common_properties[] = { |
94 | DEFINE_PROP_UINT32("adapter_routes_max_batch", S390FLICState, | |
95 | adapter_routes_max_batch, ADAPTER_ROUTES_MAX_GSI), | |
96 | DEFINE_PROP_END_OF_LIST(), | |
97 | }; | |
98 | ||
99 | static void s390_flic_common_realize(DeviceState *dev, Error **errp) | |
100 | { | |
101 | uint32_t max_batch = S390_FLIC_COMMON(dev)->adapter_routes_max_batch; | |
102 | ||
103 | if (max_batch > ADAPTER_ROUTES_MAX_GSI) { | |
104 | error_setg(errp, "flic adapter_routes_max_batch too big" | |
105 | "%d (%d allowed)", max_batch, ADAPTER_ROUTES_MAX_GSI); | |
106 | } | |
107 | } | |
108 | ||
109 | static void s390_flic_class_init(ObjectClass *oc, void *data) | |
110 | { | |
111 | DeviceClass *dc = DEVICE_CLASS(oc); | |
112 | ||
113 | dc->props = s390_flic_common_properties; | |
114 | dc->realize = s390_flic_common_realize; | |
115 | } | |
116 | ||
7b35d0c4 CH |
117 | static const TypeInfo qemu_s390_flic_info = { |
118 | .name = TYPE_QEMU_S390_FLIC, | |
119 | .parent = TYPE_S390_FLIC_COMMON, | |
120 | .instance_size = sizeof(QEMUS390FLICState), | |
03cf077a | 121 | .class_init = qemu_s390_flic_class_init, |
7b35d0c4 | 122 | }; |
3a553fc6 | 123 | |
e61cc6b5 | 124 | |
7b35d0c4 CH |
125 | static const TypeInfo s390_flic_common_info = { |
126 | .name = TYPE_S390_FLIC_COMMON, | |
3a553fc6 | 127 | .parent = TYPE_SYS_BUS_DEVICE, |
7b35d0c4 | 128 | .instance_size = sizeof(S390FLICState), |
e61cc6b5 | 129 | .class_init = s390_flic_class_init, |
7b35d0c4 | 130 | .class_size = sizeof(S390FLICStateClass), |
3a553fc6 JF |
131 | }; |
132 | ||
7b35d0c4 | 133 | static void qemu_s390_flic_register_types(void) |
3a553fc6 | 134 | { |
7b35d0c4 CH |
135 | type_register_static(&s390_flic_common_info); |
136 | type_register_static(&qemu_s390_flic_info); | |
3a553fc6 JF |
137 | } |
138 | ||
7b35d0c4 | 139 | type_init(qemu_s390_flic_register_types) |
517ff12c HP |
140 | |
141 | const VMStateDescription vmstate_adapter_info = { | |
142 | .name = "s390_adapter_info", | |
143 | .version_id = 1, | |
144 | .minimum_version_id = 1, | |
145 | .fields = (VMStateField[]) { | |
146 | VMSTATE_UINT64(ind_offset, AdapterInfo), | |
147 | /* | |
148 | * We do not have to migrate neither the id nor the addresses. | |
149 | * The id is set by css_register_io_adapter and the addresses | |
150 | * are set based on the IndAddr objects after those get mapped. | |
151 | */ | |
152 | VMSTATE_END_OF_LIST() | |
153 | }, | |
154 | }; | |
155 | ||
156 | const VMStateDescription vmstate_adapter_routes = { | |
157 | ||
158 | .name = "s390_adapter_routes", | |
159 | .version_id = 1, | |
160 | .minimum_version_id = 1, | |
161 | .fields = (VMStateField[]) { | |
162 | VMSTATE_STRUCT(adapter, AdapterRoutes, 1, vmstate_adapter_info, | |
163 | AdapterInfo), | |
164 | VMSTATE_END_OF_LIST() | |
165 | } | |
166 | }; |