Reintroduce CPUState as QOM object: It's abstract and derived directly
from TYPE_OBJECT for compatibility with the user emulators.
The identifier CPUState avoids conflicts between CPU() and the struct.
Introduce $(qom-twice-y) to build it separately for system and for user
emulators.
Prepare a virtual reset method, (re)introduce cpu_reset() as wrapper.
Signed-off-by: Andreas Färber<address@hidden>
Cc: Anthony Liguori<address@hidden>
---
Makefile.objs | 3 ++
configure | 1 +
include/qemu/cpu.h | 75 ++++++++++++++++++++++++++++++++++++++++++++++++++++
qom/Makefile | 1 +
qom/cpu.c | 58 ++++++++++++++++++++++++++++++++++++++++
5 files changed, 138 insertions(+), 0 deletions(-)
create mode 100644 include/qemu/cpu.h
create mode 100644 qom/cpu.c
diff --git a/Makefile.objs b/Makefile.objs
index 431b7a1..291baf5 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -14,6 +14,7 @@ universal-obj-y += $(qobject-obj-y)
# QOM
include $(SRC_PATH)/qom/Makefile
qom-obj-y = $(addprefix qom/, $(qom-y))
+qom-obj-twice-y = $(addprefix qom/, $(qom-twice-y))
universal-obj-y += $(qom-obj-y)
@@ -89,6 +90,7 @@ fsdev-obj-$(CONFIG_VIRTFS) += $(addprefix fsdev/,
$(fsdev-nested-y))
common-obj-y = $(block-obj-y) blockdev.o
common-obj-y += $(net-obj-y)
+common-obj-y += $(qom-obj-twice-y)
common-obj-$(CONFIG_LINUX) += $(fsdev-obj-$(CONFIG_LINUX))
common-obj-y += readline.o console.o cursor.o
common-obj-y += $(oslib-obj-y)
@@ -194,6 +196,7 @@ user-obj-y += cutils.o cache-utils.o
user-obj-y += module.o
user-obj-y += qemu-user.o
user-obj-y += $(trace-obj-y)
+user-obj-y += $(qom-obj-twice-y)
######################################################################
# libhw
diff --git a/configure b/configure
index 66a65d9..1826af5 100755
--- a/configure
+++ b/configure
@@ -3888,6 +3888,7 @@ fi
d=libuser
mkdir -p $d
mkdir -p $d/trace
+mkdir -p $d/qom
symlink $source_path/Makefile.user $d/Makefile
if test "$docs" = "yes" ; then
diff --git a/include/qemu/cpu.h b/include/qemu/cpu.h
new file mode 100644
index 0000000..4291279
--- /dev/null
+++ b/include/qemu/cpu.h
@@ -0,0 +1,75 @@
+/*
+ * QEMU CPU model
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ *
+ * 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>
+ */
+#ifndef QEMU_CPU_H
+#define QEMU_CPU_H
+
+#include "qemu/object.h"
+
+/**
+ * SECTION:cpu
+ * @section_id: QEMU-cpu
+ * @title: CPU Class
+ * @short_description: Base class for all CPUs
+ */
+
+#define TYPE_CPU "cpu"
+
+#define CPU(obj) OBJECT_CHECK(CPUState, (obj), TYPE_CPU)
+#define CPU_CLASS(class) OBJECT_CLASS_CHECK(CPUClass, (class), TYPE_CPU)
+#define CPU_GET_CLASS(obj) OBJECT_GET_CLASS(CPUClass, (obj), TYPE_CPU)
+
+typedef struct CPUState CPUState;
+
+/**
+ * CPUClass:
+ * @reset: Callback to reset the #CPU to its initial state.
+ *
+ * Represents a CPU family or model.
+ */
+typedef struct CPUClass {
+ /*< private>*/
+ ObjectClass parent_class;
+ /*< public>*/
+
+ void (*reset)(CPUState *cpu);
+} CPUClass;
+
+/**
+ * CPUState:
+ *
+ * State of one CPU core or thread.
+ */
+struct CPUState {
+ /*< private>*/
+ Object parent_obj;
+ /*< public>*/
+
+ /* TODO Move common fields from CPUState here. */
+};
+
+
+/**
+ * cpu_reset:
+ * @cpu: The CPU whose state is to be reset.
+ */
+void cpu_reset(CPUState *cpu);
+
+
+#endif
diff --git a/qom/Makefile b/qom/Makefile
index 885a263..34c6de5 100644
--- a/qom/Makefile
+++ b/qom/Makefile
@@ -1 +1,2 @@
qom-y = object.o container.o qom-qobject.o
+qom-twice-y = cpu.o
diff --git a/qom/cpu.c b/qom/cpu.c
new file mode 100644
index 0000000..5b36046
--- /dev/null
+++ b/qom/cpu.c
@@ -0,0 +1,58 @@
+/*
+ * QEMU CPU model
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ *
+ * 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/cpu.h"
+#include "qemu-common.h"
+
+void cpu_reset(CPUState *cpu)
+{
+ CPUClass *klass = CPU_GET_CLASS(cpu);
+
+ if (klass->reset != NULL) {
+ (*klass->reset)(cpu);
+ }
+}
+
+static void cpu_common_reset(CPUState *cpu)
+{
+}
+
+static void cpu_class_init(ObjectClass *klass, void *data)
+{
+ CPUClass *k = CPU_CLASS(klass);
+
+ k->reset = cpu_common_reset;
+}
+
+static TypeInfo cpu_type_info = {
+ .name = TYPE_CPU,
+ .parent = TYPE_OBJECT,
+ .instance_size = sizeof(CPUState),
+ .abstract = true,
+ .class_size = sizeof(CPUClass),
+ .class_init = cpu_class_init,
+};
+
+static void cpu_register_types(void)
+{
+ type_register_static(&cpu_type_info);
+}
+
+type_init(cpu_register_types)