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[Qemu-arm] [RFC PATCH v2 06/12] add vmstate description for device reset
From: |
Damien Hedde |
Subject: |
[Qemu-arm] [RFC PATCH v2 06/12] add vmstate description for device reset state |
Date: |
Tue, 4 Jun 2019 18:25:20 +0200 |
The `device_vmstate_reset` can be added by device specialization, as
vmsd subsection, to migrate the reset related device state part.
It contains the resetting counter and the reset inputs current status.
Signed-off-by: Damien Hedde <address@hidden>
---
hw/core/Makefile.objs | 1 +
hw/core/qdev-vmstate.c | 34 ++++++++++++++++++++++++++++++++++
include/hw/qdev-core.h | 6 ++++++
3 files changed, 41 insertions(+)
create mode 100644 hw/core/qdev-vmstate.c
diff --git a/hw/core/Makefile.objs b/hw/core/Makefile.objs
index 97007454a8..b3b4990005 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) += qdev-vmstate.o
# irq.o needed for qdev GPIO handling:
common-obj-y += irq.o
common-obj-y += hotplug.o
diff --git a/hw/core/qdev-vmstate.c b/hw/core/qdev-vmstate.c
new file mode 100644
index 0000000000..5322b70b0e
--- /dev/null
+++ b/hw/core/qdev-vmstate.c
@@ -0,0 +1,34 @@
+/*
+ * Device vmstate
+ *
+ * Copyright (c) 2019 GreenSocs
+ *
+ * Authors:
+ * Damien Hedde
+ *
+ * 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 "hw/qdev.h"
+#include "migration/vmstate.h"
+
+static bool device_vmstate_reset_needed(void *opaque)
+{
+ DeviceState *dev = (DeviceState *) opaque;
+ return dev->resetting;
+}
+
+const struct VMStateDescription device_vmstate_reset = {
+ .name = "device_reset",
+ .version_id = 0,
+ .minimum_version_id = 0,
+ .needed = device_vmstate_reset_needed,
+ .fields = (VMStateField[]) {
+ VMSTATE_UINT32(resetting, DeviceState),
+ VMSTATE_BOOL(cold_reset_input.state, DeviceState),
+ VMSTATE_BOOL(warm_reset_input.state, DeviceState),
+ VMSTATE_END_OF_LIST()
+ }
+};
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index 693f79b385..596a5bbead 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -546,4 +546,10 @@ static inline bool qbus_is_hotpluggable(BusState *bus)
void device_listener_register(DeviceListener *listener);
void device_listener_unregister(DeviceListener *listener);
+/**
+ * device_vmstate_reset:
+ * vmstate entry for reset related state
+ */
+extern const struct VMStateDescription device_vmstate_reset;
+
#endif
--
2.21.0
- [Qemu-arm] [RFC PATCH v2 00/12] Multi-phase reset, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 02/12] add device_legacy_reset function to do the transition with device_reset, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 03/12] replace all occurences of device_reset by device_legacy_reset, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 01/12] Create Resettable QOM interface, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 05/12] Add function to control reset with gpio inputs, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 06/12] add vmstate description for device reset state,
Damien Hedde <=
- [Qemu-arm] [RFC PATCH v2 04/12] make Device and Bus Resettable, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 07/12] add doc about Resettable interface, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 09/12] convert cadence_uart to 3-phases reset, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 10/12] Convert zynq's slcr to 3-phases reset, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 08/12] hw/misc/zynq_slcr: use standard register definition, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 11/12] Add uart reset support in zynq_slcr, Damien Hedde, 2019/06/04
- [Qemu-arm] [RFC PATCH v2 12/12] Connect the uart reset gpios in the zynq platform, Damien Hedde, 2019/06/04
- Re: [Qemu-arm] [RFC PATCH v2 00/12] Multi-phase reset, Peter Maydell, 2019/06/18