1 /*
2 * QEMU IPMI emulation
3 *
4 * Copyright (c) 2015 Corey Minyard, MontaVista Software, LLC
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 */
24
25 #include "qemu/osdep.h"
26 #include "hw/ipmi/ipmi.h"
27 #include "hw/qdev-properties.h"
28 #include "qom/object_interfaces.h"
29 #include "sysemu/runstate.h"
30 #include "qapi/error.h"
31 #include "qemu/module.h"
32 #include "hw/nmi.h"
33
34 static uint32_t ipmi_current_uuid = 1;
35
ipmi_next_uuid(void)36 uint32_t ipmi_next_uuid(void)
37 {
38 return ipmi_current_uuid++;
39 }
40
ipmi_do_hw_op(IPMIInterface * s,enum ipmi_op op,int checkonly)41 static int ipmi_do_hw_op(IPMIInterface *s, enum ipmi_op op, int checkonly)
42 {
43 switch (op) {
44 case IPMI_RESET_CHASSIS:
45 if (checkonly) {
46 return 0;
47 }
48 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
49 return 0;
50
51 case IPMI_POWEROFF_CHASSIS:
52 if (checkonly) {
53 return 0;
54 }
55 qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
56 return 0;
57
58 case IPMI_SEND_NMI:
59 if (checkonly) {
60 return 0;
61 }
62 /* We don't care what CPU we use. */
63 nmi_monitor_handle(0, NULL);
64 return 0;
65
66 case IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP:
67 if (checkonly) {
68 return 0;
69 }
70 qemu_system_powerdown_request();
71 return 0;
72
73 case IPMI_POWERCYCLE_CHASSIS:
74 case IPMI_PULSE_DIAG_IRQ:
75 case IPMI_POWERON_CHASSIS:
76 default:
77 return IPMI_CC_COMMAND_NOT_SUPPORTED;
78 }
79 }
80
ipmi_interface_class_init(ObjectClass * class,void * data)81 static void ipmi_interface_class_init(ObjectClass *class, void *data)
82 {
83 IPMIInterfaceClass *ik = IPMI_INTERFACE_CLASS(class);
84
85 ik->do_hw_op = ipmi_do_hw_op;
86 }
87
88 static const TypeInfo ipmi_interface_type_info = {
89 .name = TYPE_IPMI_INTERFACE,
90 .parent = TYPE_INTERFACE,
91 .class_size = sizeof(IPMIInterfaceClass),
92 .class_init = ipmi_interface_class_init,
93 };
94
isa_ipmi_bmc_check(const Object * obj,const char * name,Object * val,Error ** errp)95 static void isa_ipmi_bmc_check(const Object *obj, const char *name,
96 Object *val, Error **errp)
97 {
98 IPMIBmc *bmc = IPMI_BMC(val);
99
100 if (bmc->intf)
101 error_setg(errp, "BMC object is already in use");
102 }
103
ipmi_bmc_find_and_link(Object * obj,Object ** bmc)104 void ipmi_bmc_find_and_link(Object *obj, Object **bmc)
105 {
106 object_property_add_link(obj, "bmc", TYPE_IPMI_BMC, bmc,
107 isa_ipmi_bmc_check,
108 OBJ_PROP_LINK_STRONG);
109 }
110
111 static Property ipmi_bmc_properties[] = {
112 DEFINE_PROP_UINT8("slave_addr", IPMIBmc, slave_addr, 0x20),
113 DEFINE_PROP_END_OF_LIST(),
114 };
115
bmc_class_init(ObjectClass * oc,void * data)116 static void bmc_class_init(ObjectClass *oc, void *data)
117 {
118 DeviceClass *dc = DEVICE_CLASS(oc);
119
120 device_class_set_props(dc, ipmi_bmc_properties);
121 }
122
123 static const TypeInfo ipmi_bmc_type_info = {
124 .name = TYPE_IPMI_BMC,
125 .parent = TYPE_DEVICE,
126 .instance_size = sizeof(IPMIBmc),
127 .abstract = true,
128 .class_size = sizeof(IPMIBmcClass),
129 .class_init = bmc_class_init,
130 };
131
ipmi_register_types(void)132 static void ipmi_register_types(void)
133 {
134 type_register_static(&ipmi_interface_type_info);
135 type_register_static(&ipmi_bmc_type_info);
136 }
137
138 type_init(ipmi_register_types)
139