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0719029c CM |
1 | /* |
2 | * QEMU ISA IPMI KCS emulation | |
3 | * | |
0f310cd6 | 4 | * Copyright (c) 2015,2017 Corey Minyard, MontaVista Software, LLC |
0719029c CM |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
0b8fa32f | 24 | |
0430891c | 25 | #include "qemu/osdep.h" |
7e57b82e | 26 | #include "qemu/log.h" |
0b8fa32f | 27 | #include "qemu/module.h" |
da34e65c | 28 | #include "qapi/error.h" |
64552b6b | 29 | #include "hw/irq.h" |
0f310cd6 | 30 | #include "hw/ipmi/ipmi_kcs.h" |
0719029c | 31 | #include "hw/isa/isa.h" |
a27bd6c7 | 32 | #include "hw/qdev-properties.h" |
d6454270 | 33 | #include "migration/vmstate.h" |
db1015e9 | 34 | #include "qom/object.h" |
0719029c | 35 | |
0719029c | 36 | #define TYPE_ISA_IPMI_KCS "isa-ipmi-kcs" |
db1015e9 | 37 | typedef struct ISAIPMIKCSDevice ISAIPMIKCSDevice; |
8110fa1d EH |
38 | DECLARE_INSTANCE_CHECKER(ISAIPMIKCSDevice, ISA_IPMI_KCS, |
39 | TYPE_ISA_IPMI_KCS) | |
0719029c | 40 | |
db1015e9 | 41 | struct ISAIPMIKCSDevice { |
0719029c | 42 | ISADevice dev; |
f4014512 | 43 | int32_t isairq; |
0f310cd6 | 44 | qemu_irq irq; |
0719029c | 45 | IPMIKCS kcs; |
15139b8e | 46 | uint32_t uuid; |
db1015e9 | 47 | }; |
0719029c | 48 | |
0f310cd6 | 49 | static void isa_ipmi_kcs_get_fwinfo(IPMIInterface *ii, IPMIFwInfo *info) |
15139b8e CM |
50 | { |
51 | ISAIPMIKCSDevice *iik = ISA_IPMI_KCS(ii); | |
52 | ||
0f310cd6 | 53 | ipmi_kcs_get_fwinfo(&iik->kcs, info); |
15139b8e CM |
54 | info->interrupt_number = iik->isairq; |
55 | info->uuid = iik->uuid; | |
56 | } | |
57 | ||
0f310cd6 | 58 | static void isa_ipmi_kcs_raise_irq(IPMIKCS *ik) |
15139b8e | 59 | { |
0f310cd6 CM |
60 | ISAIPMIKCSDevice *iik = ik->opaque; |
61 | ||
62 | qemu_irq_raise(iik->irq); | |
63 | } | |
64 | ||
65 | static void isa_ipmi_kcs_lower_irq(IPMIKCS *ik) | |
66 | { | |
67 | ISAIPMIKCSDevice *iik = ik->opaque; | |
68 | ||
69 | qemu_irq_lower(iik->irq); | |
15139b8e CM |
70 | } |
71 | ||
0719029c CM |
72 | static void ipmi_isa_realize(DeviceState *dev, Error **errp) |
73 | { | |
f6166a4d | 74 | Error *err = NULL; |
0719029c CM |
75 | ISADevice *isadev = ISA_DEVICE(dev); |
76 | ISAIPMIKCSDevice *iik = ISA_IPMI_KCS(dev); | |
77 | IPMIInterface *ii = IPMI_INTERFACE(dev); | |
78 | IPMIInterfaceClass *iic = IPMI_INTERFACE_GET_CLASS(ii); | |
79 | ||
80 | if (!iik->kcs.bmc) { | |
81 | error_setg(errp, "IPMI device requires a bmc attribute to be set"); | |
82 | return; | |
83 | } | |
84 | ||
15139b8e CM |
85 | iik->uuid = ipmi_next_uuid(); |
86 | ||
0719029c | 87 | iik->kcs.bmc->intf = ii; |
0f310cd6 | 88 | iik->kcs.opaque = iik; |
0719029c | 89 | |
f6166a4d MA |
90 | iic->init(ii, 0, &err); |
91 | if (err) { | |
92 | error_propagate(errp, err); | |
0719029c | 93 | return; |
f6166a4d | 94 | } |
0719029c CM |
95 | |
96 | if (iik->isairq > 0) { | |
0f310cd6 | 97 | isa_init_irq(isadev, &iik->irq, iik->isairq); |
0719029c | 98 | iik->kcs.use_irq = 1; |
0f310cd6 CM |
99 | iik->kcs.raise_irq = isa_ipmi_kcs_raise_irq; |
100 | iik->kcs.lower_irq = isa_ipmi_kcs_lower_irq; | |
0719029c CM |
101 | } |
102 | ||
103 | qdev_set_legacy_instance_id(dev, iik->kcs.io_base, iik->kcs.io_length); | |
104 | ||
105 | isa_register_ioport(isadev, &iik->kcs.io, iik->kcs.io_base); | |
106 | } | |
107 | ||
7e57b82e CM |
108 | static bool vmstate_kcs_before_version2(void *opaque, int version) |
109 | { | |
110 | return version <= 1; | |
111 | } | |
112 | ||
7e57b82e | 113 | static const VMStateDescription vmstate_ISAIPMIKCSDevice = { |
bd66bcfc | 114 | .name = TYPE_IPMI_INTERFACE, |
7e57b82e | 115 | .version_id = 2, |
bd66bcfc CM |
116 | .minimum_version_id = 1, |
117 | .fields = (VMStateField[]) { | |
7e57b82e CM |
118 | VMSTATE_VSTRUCT_TEST(kcs, ISAIPMIKCSDevice, vmstate_kcs_before_version2, |
119 | 0, vmstate_IPMIKCS, IPMIKCS, 1), | |
120 | VMSTATE_VSTRUCT_V(kcs, ISAIPMIKCSDevice, 2, vmstate_IPMIKCS, | |
121 | IPMIKCS, 2), | |
bd66bcfc CM |
122 | VMSTATE_END_OF_LIST() |
123 | } | |
124 | }; | |
125 | ||
0719029c CM |
126 | static void isa_ipmi_kcs_init(Object *obj) |
127 | { | |
128 | ISAIPMIKCSDevice *iik = ISA_IPMI_KCS(obj); | |
129 | ||
130 | ipmi_bmc_find_and_link(obj, (Object **) &iik->kcs.bmc); | |
bd66bcfc | 131 | |
7e57b82e CM |
132 | /* |
133 | * Version 1 had an incorrect name, it clashed with the BT | |
134 | * IPMI device, so receive it, but transmit a different | |
135 | * version. | |
136 | */ | |
bd66bcfc | 137 | vmstate_register(NULL, 0, &vmstate_ISAIPMIKCSDevice, iik); |
0719029c CM |
138 | } |
139 | ||
140 | static void *isa_ipmi_kcs_get_backend_data(IPMIInterface *ii) | |
141 | { | |
142 | ISAIPMIKCSDevice *iik = ISA_IPMI_KCS(ii); | |
143 | ||
144 | return &iik->kcs; | |
145 | } | |
146 | ||
147 | static Property ipmi_isa_properties[] = { | |
148 | DEFINE_PROP_UINT32("ioport", ISAIPMIKCSDevice, kcs.io_base, 0xca2), | |
149 | DEFINE_PROP_INT32("irq", ISAIPMIKCSDevice, isairq, 5), | |
150 | DEFINE_PROP_END_OF_LIST(), | |
151 | }; | |
152 | ||
153 | static void isa_ipmi_kcs_class_init(ObjectClass *oc, void *data) | |
154 | { | |
155 | DeviceClass *dc = DEVICE_CLASS(oc); | |
156 | IPMIInterfaceClass *iic = IPMI_INTERFACE_CLASS(oc); | |
157 | ||
158 | dc->realize = ipmi_isa_realize; | |
4f67d30b | 159 | device_class_set_props(dc, ipmi_isa_properties); |
0719029c CM |
160 | |
161 | iic->get_backend_data = isa_ipmi_kcs_get_backend_data; | |
162 | ipmi_kcs_class_init(iic); | |
0f310cd6 | 163 | iic->get_fwinfo = isa_ipmi_kcs_get_fwinfo; |
0719029c CM |
164 | } |
165 | ||
166 | static const TypeInfo isa_ipmi_kcs_info = { | |
167 | .name = TYPE_ISA_IPMI_KCS, | |
168 | .parent = TYPE_ISA_DEVICE, | |
169 | .instance_size = sizeof(ISAIPMIKCSDevice), | |
170 | .instance_init = isa_ipmi_kcs_init, | |
171 | .class_init = isa_ipmi_kcs_class_init, | |
172 | .interfaces = (InterfaceInfo[]) { | |
173 | { TYPE_IPMI_INTERFACE }, | |
174 | { } | |
175 | } | |
176 | }; | |
177 | ||
178 | static void ipmi_register_types(void) | |
179 | { | |
180 | type_register_static(&isa_ipmi_kcs_info); | |
181 | } | |
182 | ||
183 | type_init(ipmi_register_types) |