[Qemu-devel] [PATCH v6 2/9] hw/core/clock-vmstate: define a vmstate entry for clock state

[damien.hedde@greensocs.con]

From: Damien Hedde <damien.hedde@greensocs.com>

Signed-off-by: Damien Hedde <damien.hedde@greensocs.com>
---
This was in the previous reviewed commit. But it can't be in the
clock.c file in order to allow linux-user builds.
---
 hw/core/Makefile.objs   |  1 +
 hw/core/clock-vmstate.c | 25 +++++++++++++++++++++++++
 include/hw/clock.h      |  9 +++++++++
 3 files changed, 35 insertions(+)
 create mode 100644 hw/core/clock-vmstate.c

diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs
index c66a5b2c6b..8fcebf2e67 100644
--- a/hw/core/Makefile.objs
+++ b/hw/core/Makefile.objs
@@ -4,6 +4,7 @@ common-obj-y += bus.o reset.o
 common-obj-y += resettable.o
 common-obj-$(CONFIG_SOFTMMU) += qdev-fw.o
 common-obj-$(CONFIG_SOFTMMU) += fw-path-provider.o
+common-obj-$(CONFIG_SOFTMMU) += clock-vmstate.o
 # irq.o needed for qdev GPIO handling:
 common-obj-y += irq.o
 common-obj-y += hotplug.o
diff --git a/hw/core/clock-vmstate.c b/hw/core/clock-vmstate.c
new file mode 100644
index 0000000000..c781369c15
--- /dev/null
+++ b/hw/core/clock-vmstate.c
@@ -0,0 +1,25 @@
+/*
+ * Clock migration structure
+ *
+ * Copyright GreenSocs 2019
+ *
+ * Authors:
+ *  Damien Hedde <damien.hedde@greensocs.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "migration/vmstate.h"
+#include "hw/clock.h"
+
+const VMStateDescription vmstate_clockin = {
+    .name = "clock",
+    .version_id = 0,
+    .minimum_version_id = 0,
+    .fields = (VMStateField[]) {
+        VMSTATE_UINT64(frequency, ClockIn),
+        VMSTATE_END_OF_LIST()
+    }
+};
diff --git a/include/hw/clock.h b/include/hw/clock.h
index fd11202ba4..e7efb6ad17 100644
--- a/include/hw/clock.h
+++ b/include/hw/clock.h
@@ -34,6 +34,15 @@ struct ClockOut {
     QLIST_HEAD(, ClockIn) followers; /* list of registered clocks */
 };
 
+/*
+ * vmstate description entry to be added in device vmsd.
+ */
+extern const VMStateDescription vmstate_clockin;
+#define VMSTATE_CLOCKIN(_field, _state) \
+    VMSTATE_CLOCKIN_V(_field, _state, 0)
+#define VMSTATE_CLOCKIN_V(_field, _state, _version) \
+    VMSTATE_STRUCT_POINTER_V(_field, _state, _version, vmstate_clockin, ClockIn)
+
 /**
  * clock_out_setup_canonical_path:
  * @clk: clock
-- 
2.22.0