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 "hw/nmi.h" 23 #include "qapi/qmp/qerror.h" 24 25 struct do_nmi_s { 26 int cpu_index; 27 Error *errp; 28 bool handled; 29 }; 30 31 static void nmi_children(Object *o, struct do_nmi_s *ns); 32 33 static int do_nmi(Object *o, void *opaque) 34 { 35 struct do_nmi_s *ns = opaque; 36 NMIState *n = (NMIState *) object_dynamic_cast(o, TYPE_NMI); 37 38 if (n) { 39 NMIClass *nc = NMI_GET_CLASS(n); 40 41 ns->handled = true; 42 nc->nmi_monitor_handler(n, ns->cpu_index, &ns->errp); 43 if (ns->errp) { 44 return -1; 45 } 46 } 47 nmi_children(o, ns); 48 49 return 0; 50 } 51 52 static void nmi_children(Object *o, struct do_nmi_s *ns) 53 { 54 object_child_foreach(o, do_nmi, ns); 55 } 56 57 void nmi_monitor_handle(int cpu_index, Error **errp) 58 { 59 struct do_nmi_s ns = { 60 .cpu_index = cpu_index, 61 .errp = NULL, 62 .handled = false 63 }; 64 65 nmi_children(object_get_root(), &ns); 66 if (ns.handled) { 67 error_propagate(errp, ns.errp); 68 } else { 69 error_set(errp, QERR_UNSUPPORTED); 70 } 71 } 72 73 static const TypeInfo nmi_info = { 74 .name = TYPE_NMI, 75 .parent = TYPE_INTERFACE, 76 .class_size = sizeof(NMIClass), 77 }; 78 79 static void nmi_register_types(void) 80 { 81 type_register_static(&nmi_info); 82 } 83 84 type_init(nmi_register_types) 85