hw/ipmi/ipmi.c

   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 uint32_t ipmi_current_uuid = 1;
  34
  35 uint32_t ipmi_next_uuid(void)
  36 {
  37     return ipmi_current_uuid++;
  38 }
  39
  40 static int ipmi_do_hw_op(IPMIInterface *s, enum ipmi_op op, int checkonly)
  41 {
  42     switch (op) {
  43     case IPMI_RESET_CHASSIS:
  44         if (checkonly) {
  45             return 0;
  46         }
  47         qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
  48         return 0;
  49
  50     case IPMI_POWEROFF_CHASSIS:
  51         if (checkonly) {
  52             return 0;
  53         }
  54         qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
  55         return 0;
  56
  57     case IPMI_SEND_NMI:
  58         if (checkonly) {
  59             return 0;
  60         }
  61         qmp_inject_nmi(NULL);
  62         return 0;
  63
  64     case IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP:
  65         if (checkonly) {
  66             return 0;
  67         }
  68         qemu_system_powerdown_request();
  69         return 0;
  70
  71     case IPMI_POWERCYCLE_CHASSIS:
  72     case IPMI_PULSE_DIAG_IRQ:
  73     case IPMI_POWERON_CHASSIS:
  74     default:
  75         return IPMI_CC_COMMAND_NOT_SUPPORTED;
  76     }
  77 }
  78
  79 static void ipmi_interface_class_init(ObjectClass *class, void *data)
  80 {
  81     IPMIInterfaceClass *ik = IPMI_INTERFACE_CLASS(class);
  82
  83     ik->do_hw_op = ipmi_do_hw_op;
  84 }
  85
  86 static TypeInfo ipmi_interface_type_info = {
  87     .name = TYPE_IPMI_INTERFACE,
  88     .parent = TYPE_INTERFACE,
  89     .class_size = sizeof(IPMIInterfaceClass),
  90     .class_init = ipmi_interface_class_init,
  91 };
  92
  93 static void isa_ipmi_bmc_check(const Object *obj, const char *name,
  94                                Object *val, Error **errp)
  95 {
  96     IPMIBmc *bmc = IPMI_BMC(val);
  97
  98     if (bmc->intf)
  99         error_setg(errp, "BMC object is already in use");
 100 }
 101
 102 void ipmi_bmc_find_and_link(Object *obj, Object **bmc)
 103 {
 104     object_property_add_link(obj, "bmc", TYPE_IPMI_BMC, bmc,
 105                              isa_ipmi_bmc_check,
 106                              OBJ_PROP_LINK_UNREF_ON_RELEASE,
 107                              &error_abort);
 108 }
 109
 110 static Property ipmi_bmc_properties[] = {
 111     DEFINE_PROP_UINT8("slave_addr",  IPMIBmc, slave_addr, 0x20),
 112     DEFINE_PROP_END_OF_LIST(),
 113 };
 114
 115 static void bmc_class_init(ObjectClass *oc, void *data)
 116 {
 117     DeviceClass *dc = DEVICE_CLASS(oc);
 118
 119     dc->props = ipmi_bmc_properties;
 120 }
 121
 122 static TypeInfo ipmi_bmc_type_info = {
 123     .name = TYPE_IPMI_BMC,
 124     .parent = TYPE_DEVICE,
 125     .instance_size = sizeof(IPMIBmc),
 126     .abstract = true,
 127     .class_size = sizeof(IPMIBmcClass),
 128     .class_init = bmc_class_init,
 129 };
 130
 131 static void ipmi_register_types(void)
 132 {
 133     type_register_static(&ipmi_interface_type_info);
 134     type_register_static(&ipmi_bmc_type_info);
 135 }
 136
 137 type_init(ipmi_register_types)