qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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ipmi.c (3988B)

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