diff --git a/cpus.c b/cpus.c
index 2b5c0bd7c74c07a85ddaf8eda145ef4ad99c003c..37d90f4e930d67c75150b9c3572024a7dde6ee53 100644
--- a/cpus.c
+++ b/cpus.c
@@ -40,6 +40,7 @@
#include "qemu/bitmap.h"
#include "qemu/seqlock.h"
#include "qapi-event.h"
+#include "hw/nmi.h"
#ifndef _WIN32
#include "qemu/compatfd.h"
@@ -1551,7 +1552,7 @@ void qmp_inject_nmi(Error **errp)
}
}
#else
- error_set(errp, QERR_UNSUPPORTED);
+ nmi_monitor_handle(monitor_get_cpu_index(), errp);
#endif
}
diff --git a/hmp-commands.hx b/hmp-commands.hx
index d0943b1ff320b1fa389ae8fa501246625421ece0..f859f8d29f285898dd395d2e95a7265d11dd3c25 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -832,19 +832,17 @@ The values that can be specified here depend on the machine type, but are
the same that can be specified in the @code{-boot} command line option.
ETEXI
-#if defined(TARGET_I386) || defined(TARGET_S390X)
{
.name = "nmi",
.args_type = "",
.params = "",
- .help = "inject an NMI on all guest's CPUs",
+ .help = "inject an NMI",
.mhandler.cmd = hmp_inject_nmi,
},
-#endif
STEXI
@item nmi @var{cpu}
@findex nmi
-Inject an NMI (x86) or RESTART (s390x) on the given CPU.
+Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
ETEXI
diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs
index 5377d052e9d817893a581df0d5a565f9de62411d..17845df3f045b8194b1e1180e879c831289517a8 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 0000000000000000000000000000000000000000..3dff020659d05cb549805ea6331512ea375bc1f4
--- /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)
diff --git a/include/hw/nmi.h b/include/hw/nmi.h
new file mode 100644
index 0000000000000000000000000000000000000000..b541772e1d940fe7ee62e30e80d76b7a640067a9
--- /dev/null
+++ b/include/hw/nmi.h
@@ -0,0 +1,49 @@
+/*
+ * NMI monitor handler class and helpers definitions.
+ *
+ * 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/>.
+ */
+
+#ifndef NMI_H
+#define NMI_H 1
+
+#include "qemu-common.h"
+#include "qom/object.h"
+
+#define TYPE_NMI "nmi"
+
+#define NMI_CLASS(klass) \
+ OBJECT_CLASS_CHECK(NMIClass, (klass), TYPE_NMI)
+#define NMI_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(NMIClass, (obj), TYPE_NMI)
+#define NMI(obj) \
+ INTERFACE_CHECK(NMI, (obj), TYPE_NMI)
+
+typedef struct NMIState {
+ Object parent_obj;
+} NMIState;
+
+typedef struct NMIClass {
+ InterfaceClass parent_class;
+
+ void (*nmi_monitor_handler)(NMIState *n, int cpu_index, Error **errp);
+} NMIClass;
+
+void nmi_monitor_handle(int cpu_index, Error **errp);
+
+#endif /* NMI_H */
diff --git a/qapi-schema.json b/qapi-schema.json
index 341f417a5f99d4168d4be60a3a6069f6836ddbd2..689b548abfd6620b3694650563f7fe8b5b27d175 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -1186,13 +1186,13 @@
##
# @inject-nmi:
#
-# Injects an Non-Maskable Interrupt into all guest's VCPUs.
+# Injects a Non-Maskable Interrupt into the default CPU (x86/s390) or all CPUs (ppc64).
#
# Returns: If successful, nothing
#
# Since: 0.14.0
#
-# Notes: Only x86 Virtual Machines support this command.
+# Note: prior to 2.1, this command was only supported for x86 and s390 VMs
##
{ 'command': 'inject-nmi' }
diff --git a/qmp-commands.hx b/qmp-commands.hx
index 4be4765f27a75411636134d6636fa2d4e2cd158e..7658d4bd24f9f11276716c6d7a9bdff6588a21ca 100644
--- a/qmp-commands.hx
+++ b/qmp-commands.hx
@@ -477,7 +477,7 @@ SQMP
inject-nmi
----------
-Inject an NMI on guest's CPUs.
+Inject an NMI on the default CPU (x86/s390) or all CPUs (ppc64).
Arguments: None.
@@ -487,7 +487,6 @@ Example:
<- { "return": {} }
Note: inject-nmi fails when the guest doesn't support injecting.
- Currently, only x86 (NMI) and s390x (RESTART) guests do.
EQMP