diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/core/Makefile.objs | 1 | ||||
| -rw-r--r-- | hw/core/nmi.c | 84 |
2 files changed, 85 insertions, 0 deletions
diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs index 5377d052e9..17845df3f0 100644 --- a/hw/core/Makefile.objs +++ b/hw/core/Makefile.objs @@ -4,6 +4,7 @@ common-obj-y += fw-path-provider.o # irq.o needed for qdev GPIO handling: common-obj-y += irq.o common-obj-y += hotplug.o +common-obj-y += nmi.o common-obj-$(CONFIG_EMPTY_SLOT) += empty_slot.o common-obj-$(CONFIG_XILINX_AXI) += stream.o diff --git a/hw/core/nmi.c b/hw/core/nmi.c new file mode 100644 index 0000000000..3dff020659 --- /dev/null +++ b/hw/core/nmi.c @@ -0,0 +1,84 @@ +/* + * 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" + +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_set(errp, QERR_UNSUPPORTED); + } +} + +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) |