/* * NMI monitor handler class and helpers. * * Copyright IBM Corp., 2014 * * Author: Alexey Kardashevskiy * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, * or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ #include "qemu/osdep.h" #include "qom/cpu.h" #include "hw/nmi.h" #include "qapi/error.h" #include "qapi/qmp/qerror.h" #include "monitor/monitor.h" #if defined(TARGET_I386) #include "cpu.h" #endif struct do_nmi_s { int cpu_index; Error *err; bool handled; }; static void nmi_children(Object *o, struct do_nmi_s *ns); static int do_nmi(Object *o, void *opaque) { struct do_nmi_s *ns = opaque; NMIState *n = (NMIState *) object_dynamic_cast(o, TYPE_NMI); if (n) { NMIClass *nc = NMI_GET_CLASS(n); ns->handled = true; nc->nmi_monitor_handler(n, ns->cpu_index, &ns->err); if (ns->err) { return -1; } } nmi_children(o, ns); return 0; } static void nmi_children(Object *o, struct do_nmi_s *ns) { object_child_foreach(o, do_nmi, ns); } void nmi_monitor_handle(int cpu_index, Error **errp) { struct do_nmi_s ns = { .cpu_index = cpu_index, .err = NULL, .handled = false }; nmi_children(object_get_root(), &ns); if (ns.handled) { error_propagate(errp, ns.err); } else { error_setg(errp, QERR_UNSUPPORTED); } } void inject_nmi(void) { #if defined(TARGET_I386) CPUState *cs; CPU_FOREACH(cs) { X86CPU *cpu = X86_CPU(cs); if (!cpu->apic_state) { cpu_interrupt(cs, CPU_INTERRUPT_NMI); } else { apic_deliver_nmi(cpu->apic_state); } } #else nmi_monitor_handle(0, NULL); #endif } static const TypeInfo nmi_info = { .name = TYPE_NMI, .parent = TYPE_INTERFACE, .class_size = sizeof(NMIClass), }; static void nmi_register_types(void) { type_register_static(&nmi_info); } type_init(nmi_register_types)