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/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
  33static uint32_t ipmi_current_uuid = 1;
  34
  35uint32_t ipmi_next_uuid(void)
  36{
  37    return ipmi_current_uuid++;
  38}
  39
  40static 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();
  48        return 0;
  49
  50    case IPMI_POWEROFF_CHASSIS:
  51        if (checkonly) {
  52            return 0;
  53        }
  54        qemu_system_shutdown_request();
  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
  79static 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
  86static 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
  93static void isa_ipmi_bmc_check(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
 102void 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
 110static Property ipmi_bmc_properties[] = {
 111    DEFINE_PROP_UINT8("slave_addr",  IPMIBmc, slave_addr, 0x20),
 112    DEFINE_PROP_END_OF_LIST(),
 113};
 114
 115static void bmc_class_init(ObjectClass *oc, void *data)
 116{
 117    DeviceClass *dc = DEVICE_CLASS(oc);
 118
 119    dc->props = ipmi_bmc_properties;
 120}
 121
 122static 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
 131static void ipmi_register_types(void)
 132{
 133    type_register_static(&ipmi_interface_type_info);
 134    type_register_static(&ipmi_bmc_type_info);
 135}
 136
 137type_init(ipmi_register_types)
 138