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/*
* NMI monitor handler class and helpers.
*
* Copyright IBM Corp., 2014
*
* Author: Alexey Kardashevskiy <aik@ozlabs.ru>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "hw/nmi.h"
#include "qapi/qmp/qerror.h"
#include "monitor/monitor.h"
struct do_nmi_s {
int cpu_index;
Error *errp;
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->errp);
if (ns->errp) {
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,
.errp = NULL,
.handled = false
};
nmi_children(object_get_root(), &ns);
if (ns.handled) {
error_propagate(errp, ns.errp);
} 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)
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