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 36 uint32_t ipmi_next_uuid(void) 37 { 38 return ipmi_current_uuid++; 39 } 40 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 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 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 } 103 104 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 }; 115 116 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 }; 131 132 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