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 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        qmp_inject_nmi(NULL);
  55        return 0;
  56
  57    case IPMI_POWERCYCLE_CHASSIS:
  58    case IPMI_PULSE_DIAG_IRQ:
  59    case IPMI_SHUTDOWN_VIA_ACPI_OVERTEMP:
  60    case IPMI_POWERON_CHASSIS:
  61    default:
  62        return IPMI_CC_COMMAND_NOT_SUPPORTED;
  63    }
  64}
  65
  66static void ipmi_interface_class_init(ObjectClass *class, void *data)
  67{
  68    IPMIInterfaceClass *ik = IPMI_INTERFACE_CLASS(class);
  69
  70    ik->do_hw_op = ipmi_do_hw_op;
  71}
  72
  73static TypeInfo ipmi_interface_type_info = {
  74    .name = TYPE_IPMI_INTERFACE,
  75    .parent = TYPE_INTERFACE,
  76    .class_size = sizeof(IPMIInterfaceClass),
  77    .class_init = ipmi_interface_class_init,
  78};
  79
  80static void isa_ipmi_bmc_check(Object *obj, const char *name,
  81                               Object *val, Error **errp)
  82{
  83    IPMIBmc *bmc = IPMI_BMC(val);
  84
  85    if (bmc->intf)
  86        error_setg(errp, "BMC object is already in use");
  87}
  88
  89void ipmi_bmc_find_and_link(Object *obj, Object **bmc)
  90{
  91    object_property_add_link(obj, "bmc", TYPE_IPMI_BMC, bmc,
  92                             isa_ipmi_bmc_check,
  93                             OBJ_PROP_LINK_UNREF_ON_RELEASE,
  94                             &error_abort);
  95}
  96
  97static Property ipmi_bmc_properties[] = {
  98    DEFINE_PROP_UINT8("slave_addr",  IPMIBmc, slave_addr, 0x20),
  99    DEFINE_PROP_END_OF_LIST(),
 100};
 101
 102static void bmc_class_init(ObjectClass *oc, void *data)
 103{
 104    DeviceClass *dc = DEVICE_CLASS(oc);
 105
 106    dc->props = ipmi_bmc_properties;
 107}
 108
 109static TypeInfo ipmi_bmc_type_info = {
 110    .name = TYPE_IPMI_BMC,
 111    .parent = TYPE_DEVICE,
 112    .instance_size = sizeof(IPMIBmc),
 113    .abstract = true,
 114    .class_size = sizeof(IPMIBmcClass),
 115    .class_init = bmc_class_init,
 116};
 117
 118static void ipmi_register_types(void)
 119{
 120    type_register_static(&ipmi_interface_type_info);
 121    type_register_static(&ipmi_bmc_type_info);
 122}
 123
 124type_init(ipmi_register_types)
 125
 126static IPMIFwInfo *ipmi_fw_info;
 127static unsigned int ipmi_fw_info_len;
 128
 129static uint32_t current_uuid = 1;
 130
 131void ipmi_add_fwinfo(IPMIFwInfo *info, Error **errp)
 132{
 133    info->uuid = current_uuid++;
 134    ipmi_fw_info = g_realloc(ipmi_fw_info,
 135                             sizeof(*ipmi_fw_info) * (ipmi_fw_info_len + 1));
 136    ipmi_fw_info[ipmi_fw_info_len] = *info;
 137}
 138
 139IPMIFwInfo *ipmi_first_fwinfo(void)
 140{
 141    return ipmi_fw_info;
 142}
 143
 144IPMIFwInfo *ipmi_next_fwinfo(IPMIFwInfo *current)
 145{
 146    current++;
 147    if (current >= &ipmi_fw_info[ipmi_fw_info_len]) {
 148        return NULL;
 149    }
 150    return current;
 151}
 152