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authorLuc Michel <luc.michel@greensocs.com>2019-01-07 15:23:45 +0000
committerPeter Maydell <peter.maydell@linaro.org>2019-01-07 15:23:45 +0000
commit335d52f457e7b3d959b2ddc93f83a36d75484d88 (patch)
treec50b0921b00428cb3fa5560a76b6017d6c023f8c /hw/cpu/cluster.c
parent407e6ce7f1f428cb242d424cd35381a77b5b2071 (diff)
hw/cpu: introduce CPU clusters
This commit adds the cpu-cluster type. It aims at gathering CPUs from the same cluster in a machine. For now it only has a `cluster-id` property. Documentation in cluster.h written with the help of Peter Maydell. Signed-off-by: Luc Michel <luc.michel@greensocs.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Message-id: 20181207090135.7651-2-luc.michel@greensocs.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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diff --git a/hw/cpu/cluster.c b/hw/cpu/cluster.c
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+++ b/hw/cpu/cluster.c
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+/*
+ * QEMU CPU cluster
+ *
+ * Copyright (c) 2018 GreenSocs SAS
+ *
+ * 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/gpl-2.0.html>
+ */
+
+#include "qemu/osdep.h"
+#include "hw/cpu/cluster.h"
+#include "qapi/error.h"
+#include "qemu/module.h"
+
+static Property cpu_cluster_properties[] = {
+ DEFINE_PROP_UINT32("cluster-id", CPUClusterState, cluster_id, 0),
+ DEFINE_PROP_END_OF_LIST()
+};
+
+static void cpu_cluster_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->props = cpu_cluster_properties;
+}
+
+static const TypeInfo cpu_cluster_type_info = {
+ .name = TYPE_CPU_CLUSTER,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(CPUClusterState),
+ .class_init = cpu_cluster_class_init,
+};
+
+static void cpu_cluster_register_types(void)
+{
+ type_register_static(&cpu_cluster_type_info);
+}
+
+type_init(cpu_cluster_register_types)