LXR qemu/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/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
  34static uint32_t ipmi_current_uuid = 1;
  35
  36uint32_t ipmi_next_uuid(void)
  37{
  38    return ipmi_current_uuid++;
  39}
  40
  41static 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
  81static 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
  88static 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
  95static 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
 104void 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
 111static Property ipmi_bmc_properties[] = {
 112    DEFINE_PROP_UINT8("slave_addr",  IPMIBmc, slave_addr, 0x20),
 113    DEFINE_PROP_END_OF_LIST(),
 114};
 115
 116static 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
 123static 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
 132static void ipmi_register_types(void)
 133{
 134    type_register_static(&ipmi_interface_type_info);
 135    type_register_static(&ipmi_bmc_type_info);
 136}
 137
 138type_init(ipmi_register_types)
 139