1 | /* |
2 | * NMI monitor handler class and helpers. |
3 | * |
4 | * Copyright IBM Corp., 2014 |
5 | * |
6 | * Author: Alexey Kardashevskiy <aik@ozlabs.ru> |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by |
10 | * the Free Software Foundation; either version 2 of the License, |
11 | * or (at your option) any later version. |
12 | * |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
17 | * |
18 | * You should have received a copy of the GNU General Public License |
19 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
20 | */ |
21 | |
22 | #include "qemu/osdep.h" |
23 | #include "hw/nmi.h" |
24 | #include "qapi/error.h" |
25 | #include "qapi/qmp/qerror.h" |
26 | #include "qemu/module.h" |
27 | #include "monitor/monitor.h" |
28 | |
29 | struct do_nmi_s { |
30 | int cpu_index; |
31 | Error *err; |
32 | bool handled; |
33 | }; |
34 | |
35 | static void nmi_children(Object *o, struct do_nmi_s *ns); |
36 | |
37 | static int do_nmi(Object *o, void *opaque) |
38 | { |
39 | struct do_nmi_s *ns = opaque; |
40 | NMIState *n = (NMIState *) object_dynamic_cast(o, TYPE_NMI); |
41 | |
42 | if (n) { |
43 | NMIClass *nc = NMI_GET_CLASS(n); |
44 | |
45 | ns->handled = true; |
46 | nc->nmi_monitor_handler(n, ns->cpu_index, &ns->err); |
47 | if (ns->err) { |
48 | return -1; |
49 | } |
50 | } |
51 | nmi_children(o, ns); |
52 | |
53 | return 0; |
54 | } |
55 | |
56 | static void nmi_children(Object *o, struct do_nmi_s *ns) |
57 | { |
58 | object_child_foreach(o, do_nmi, ns); |
59 | } |
60 | |
61 | void nmi_monitor_handle(int cpu_index, Error **errp) |
62 | { |
63 | struct do_nmi_s ns = { |
64 | .cpu_index = cpu_index, |
65 | .err = NULL, |
66 | .handled = false |
67 | }; |
68 | |
69 | nmi_children(object_get_root(), &ns); |
70 | if (ns.handled) { |
71 | error_propagate(errp, ns.err); |
72 | } else { |
73 | error_setg(errp, QERR_UNSUPPORTED); |
74 | } |
75 | } |
76 | |
77 | static const TypeInfo nmi_info = { |
78 | .name = TYPE_NMI, |
79 | .parent = TYPE_INTERFACE, |
80 | .class_size = sizeof(NMIClass), |
81 | }; |
82 | |
83 | static void nmi_register_types(void) |
84 | { |
85 | type_register_static(&nmi_info); |
86 | } |
87 | |
88 | type_init(nmi_register_types) |
89 | |