1 files changed, 104 insertions, 0 deletions
diff --git a/src/hw/core/nmi.c b/src/hw/core/nmi.c
new file mode 100644
index 0000000..de1d1f8
--- /dev/null
+++ b/src/hw/core/nmi.c
@@ -0,0 +1,104 @@
+/*
+ *  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)