a0d0267779
The QERR_ macros are leftovers from the days of "rich" error objects.
We've been trying to reduce their remaining use.
Get rid of a use of QERR_UNSUPPORTED, and improve the rather vague
error message
(qemu) nmi
Error: this feature or command is not currently supported
to
Error: machine does not provide NMIs
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20230207075115.1525-5-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Juan Quintela <quintela@redhat.com>
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/*
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* NMI monitor handler class and helpers.
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*
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* Copyright IBM Corp., 2014
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*
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* Author: Alexey Kardashevskiy <aik@ozlabs.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License,
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* or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "hw/nmi.h"
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#include "qapi/error.h"
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#include "qemu/module.h"
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#include "monitor/monitor.h"
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struct do_nmi_s {
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int cpu_index;
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Error *err;
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bool handled;
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};
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static void nmi_children(Object *o, struct do_nmi_s *ns);
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static int do_nmi(Object *o, void *opaque)
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{
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struct do_nmi_s *ns = opaque;
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NMIState *n = (NMIState *) object_dynamic_cast(o, TYPE_NMI);
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if (n) {
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NMIClass *nc = NMI_GET_CLASS(n);
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ns->handled = true;
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nc->nmi_monitor_handler(n, ns->cpu_index, &ns->err);
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if (ns->err) {
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return -1;
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}
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}
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nmi_children(o, ns);
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return 0;
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}
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static void nmi_children(Object *o, struct do_nmi_s *ns)
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{
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object_child_foreach(o, do_nmi, ns);
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}
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void nmi_monitor_handle(int cpu_index, Error **errp)
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{
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struct do_nmi_s ns = {
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.cpu_index = cpu_index,
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.err = NULL,
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.handled = false
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};
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nmi_children(object_get_root(), &ns);
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if (ns.handled) {
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error_propagate(errp, ns.err);
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} else {
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error_setg(errp, "machine does not provide NMIs");
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}
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}
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static const TypeInfo nmi_info = {
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.name = TYPE_NMI,
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.parent = TYPE_INTERFACE,
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.class_size = sizeof(NMIClass),
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};
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static void nmi_register_types(void)
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{
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type_register_static(&nmi_info);
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}
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type_init(nmi_register_types)
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