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/hw.h" 27 #include "hw/ipmi/ipmi.h" 28 #include "sysemu/sysemu.h" 29 #include "qmp-commands.h" 30 #include "qom/object_interfaces.h" 31 #include "qapi/visitor.h" 32 33 static int ipmi_do_hw_op(IPMIInterface *s, enum ipmi_op op, int checkonly) 34 { 35 switch (op) { 36 case IPMI_RESET_CHASSIS: 37 if (checkonly) { 38 return 0; 39 } 40 qemu_system_reset_request(); 41 return 0; 42 43 case IPMI_POWEROFF_CHASSIS: 44 if (checkonly) { 45 return 0; 46 } 47 qemu_system_powerdown_request(); 48 return 0; 49 50 case IPMI_SEND_NMI: 51 if (checkonly) { 52 return 0; 53 } 54 qemu_mutex_lock_iothread(); 55 qmp_inject_nmi(NULL); 56 qemu_mutex_unlock_iothread(); 57 return 0; 58 59 case IPMI_POWERCYCLE_CHASSIS: 60 case IPMI_PULSE_DIAG_IRQ: 61 case IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP: 62 case IPMI_POWERON_CHASSIS: 63 default: 64 return IPMI_CC_COMMAND_NOT_SUPPORTED; 65 } 66 } 67 68 static void ipmi_interface_class_init(ObjectClass *class, void *data) 69 { 70 IPMIInterfaceClass *ik = IPMI_INTERFACE_CLASS(class); 71 72 ik->do_hw_op = ipmi_do_hw_op; 73 } 74 75 static TypeInfo ipmi_interface_type_info = { 76 .name = TYPE_IPMI_INTERFACE, 77 .parent = TYPE_INTERFACE, 78 .class_size = sizeof(IPMIInterfaceClass), 79 .class_init = ipmi_interface_class_init, 80 }; 81 82 static void isa_ipmi_bmc_check(Object *obj, const char *name, 83 Object *val, Error **errp) 84 { 85 IPMIBmc *bmc = IPMI_BMC(val); 86 87 if (bmc->intf) 88 error_setg(errp, "BMC object is already in use"); 89 } 90 91 void ipmi_bmc_find_and_link(Object *obj, Object **bmc) 92 { 93 object_property_add_link(obj, "bmc", TYPE_IPMI_BMC, bmc, 94 isa_ipmi_bmc_check, 95 OBJ_PROP_LINK_UNREF_ON_RELEASE, 96 &error_abort); 97 } 98 99 static Property ipmi_bmc_properties[] = { 100 DEFINE_PROP_UINT8("slave_addr", IPMIBmc, slave_addr, 0x20), 101 DEFINE_PROP_END_OF_LIST(), 102 }; 103 104 static void bmc_class_init(ObjectClass *oc, void *data) 105 { 106 DeviceClass *dc = DEVICE_CLASS(oc); 107 108 dc->props = ipmi_bmc_properties; 109 } 110 111 static TypeInfo ipmi_bmc_type_info = { 112 .name = TYPE_IPMI_BMC, 113 .parent = TYPE_DEVICE, 114 .instance_size = sizeof(IPMIBmc), 115 .abstract = true, 116 .class_size = sizeof(IPMIBmcClass), 117 .class_init = bmc_class_init, 118 }; 119 120 static void ipmi_register_types(void) 121 { 122 type_register_static(&ipmi_interface_type_info); 123 type_register_static(&ipmi_bmc_type_info); 124 } 125 126 type_init(ipmi_register_types) 127 128 static IPMIFwInfo *ipmi_fw_info; 129 static unsigned int ipmi_fw_info_len; 130 131 static uint32_t current_uuid = 1; 132 133 void ipmi_add_fwinfo(IPMIFwInfo *info, Error **errp) 134 { 135 info->uuid = current_uuid++; 136 ipmi_fw_info = g_realloc(ipmi_fw_info, 137 sizeof(*ipmi_fw_info) * (ipmi_fw_info_len + 1)); 138 ipmi_fw_info[ipmi_fw_info_len] = *info; 139 } 140 141 IPMIFwInfo *ipmi_first_fwinfo(void) 142 { 143 return ipmi_fw_info; 144 } 145 146 IPMIFwInfo *ipmi_next_fwinfo(IPMIFwInfo *current) 147 { 148 current++; 149 if (current >= &ipmi_fw_info[ipmi_fw_info_len]) { 150 return NULL; 151 } 152 return current; 153 } 154