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 "hw/hw.h" 26 #include "hw/ipmi/ipmi.h" 27 #include "sysemu/sysemu.h" 28 #include "qmp-commands.h" 29 #include "qom/object_interfaces.h" 30 #include "qapi/visitor.h" 31 32 static int ipmi_do_hw_op(IPMIInterface *s, enum ipmi_op op, int checkonly) 33 { 34 switch (op) { 35 case IPMI_RESET_CHASSIS: 36 if (checkonly) { 37 return 0; 38 } 39 qemu_system_reset_request(); 40 return 0; 41 42 case IPMI_POWEROFF_CHASSIS: 43 if (checkonly) { 44 return 0; 45 } 46 qemu_system_powerdown_request(); 47 return 0; 48 49 case IPMI_SEND_NMI: 50 if (checkonly) { 51 return 0; 52 } 53 qemu_mutex_lock_iothread(); 54 qmp_inject_nmi(NULL); 55 qemu_mutex_unlock_iothread(); 56 return 0; 57 58 case IPMI_POWERCYCLE_CHASSIS: 59 case IPMI_PULSE_DIAG_IRQ: 60 case IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP: 61 case IPMI_POWERON_CHASSIS: 62 default: 63 return IPMI_CC_COMMAND_NOT_SUPPORTED; 64 } 65 } 66 67 static void ipmi_interface_class_init(ObjectClass *class, void *data) 68 { 69 IPMIInterfaceClass *ik = IPMI_INTERFACE_CLASS(class); 70 71 ik->do_hw_op = ipmi_do_hw_op; 72 } 73 74 static TypeInfo ipmi_interface_type_info = { 75 .name = TYPE_IPMI_INTERFACE, 76 .parent = TYPE_INTERFACE, 77 .class_size = sizeof(IPMIInterfaceClass), 78 .class_init = ipmi_interface_class_init, 79 }; 80 81 static void isa_ipmi_bmc_check(Object *obj, const char *name, 82 Object *val, Error **errp) 83 { 84 IPMIBmc *bmc = IPMI_BMC(val); 85 86 if (bmc->intf) 87 error_setg(errp, "BMC object is already in use"); 88 } 89 90 void ipmi_bmc_find_and_link(Object *obj, Object **bmc) 91 { 92 object_property_add_link(obj, "bmc", TYPE_IPMI_BMC, bmc, 93 isa_ipmi_bmc_check, 94 OBJ_PROP_LINK_UNREF_ON_RELEASE, 95 &error_abort); 96 } 97 98 static Property ipmi_bmc_properties[] = { 99 DEFINE_PROP_UINT8("slave_addr", IPMIBmc, slave_addr, 0x20), 100 DEFINE_PROP_END_OF_LIST(), 101 }; 102 103 static void bmc_class_init(ObjectClass *oc, void *data) 104 { 105 DeviceClass *dc = DEVICE_CLASS(oc); 106 107 dc->props = ipmi_bmc_properties; 108 } 109 110 static TypeInfo ipmi_bmc_type_info = { 111 .name = TYPE_IPMI_BMC, 112 .parent = TYPE_DEVICE, 113 .instance_size = sizeof(IPMIBmc), 114 .abstract = true, 115 .class_size = sizeof(IPMIBmcClass), 116 .class_init = bmc_class_init, 117 }; 118 119 static void ipmi_register_types(void) 120 { 121 type_register_static(&ipmi_interface_type_info); 122 type_register_static(&ipmi_bmc_type_info); 123 } 124 125 type_init(ipmi_register_types) 126 127 static IPMIFwInfo *ipmi_fw_info; 128 static unsigned int ipmi_fw_info_len; 129 130 static uint32_t current_uuid = 1; 131 132 void ipmi_add_fwinfo(IPMIFwInfo *info, Error **errp) 133 { 134 info->uuid = current_uuid++; 135 ipmi_fw_info = g_realloc(ipmi_fw_info, 136 sizeof(*ipmi_fw_info) * (ipmi_fw_info_len + 1)); 137 ipmi_fw_info[ipmi_fw_info_len] = *info; 138 } 139 140 IPMIFwInfo *ipmi_first_fwinfo(void) 141 { 142 return ipmi_fw_info; 143 } 144 145 IPMIFwInfo *ipmi_next_fwinfo(IPMIFwInfo *current) 146 { 147 current++; 148 if (current >= &ipmi_fw_info[ipmi_fw_info_len]) { 149 return NULL; 150 } 151 return current; 152 } 153