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authorPaul Durrant <paul.durrant@citrix.com>2019-01-08 14:48:47 +0000
committerAnthony PERARD <anthony.perard@citrix.com>2019-01-14 13:45:40 +0000
commit108f7bba15d6ee4136b543fc22005921e7ce4048 (patch)
tree112e8a69a89c8e22eec750b313c35b1fb4e24e8e /include/hw/xen
parent2d0ed5e642d597f031a35c6f804b49ec438aef22 (diff)
xen: introduce new 'XenBus' and 'XenDevice' object hierarchy
This patch adds the basic boilerplate for a 'XenBus' object that will act as a parent to 'XenDevice' PV backends. A new 'XenBridge' object is also added to connect XenBus to the system bus. The XenBus object is instantiated by a new xen_bus_init() function called from the same sites as the legacy xen_be_init() function. Subsequent patches will flesh-out the functionality of these objects. Signed-off-by: Paul Durrant <paul.durrant@citrix.com> Reviewed-by: Anthony Perard <anthony.perard@citrix.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Diffstat (limited to 'include/hw/xen')
-rw-r--r--include/hw/xen/xen-bus.h55
1 files changed, 55 insertions, 0 deletions
diff --git a/include/hw/xen/xen-bus.h b/include/hw/xen/xen-bus.h
new file mode 100644
index 0000000000..0cb12464ce
--- /dev/null
+++ b/include/hw/xen/xen-bus.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2018 Citrix Systems Inc.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef HW_XEN_BUS_H
+#define HW_XEN_BUS_H
+
+#include "hw/sysbus.h"
+
+typedef struct XenDevice {
+ DeviceState qdev;
+} XenDevice;
+
+typedef void (*XenDeviceRealize)(XenDevice *xendev, Error **errp);
+typedef void (*XenDeviceUnrealize)(XenDevice *xendev, Error **errp);
+
+typedef struct XenDeviceClass {
+ /*< private >*/
+ DeviceClass parent_class;
+ /*< public >*/
+ XenDeviceRealize realize;
+ XenDeviceUnrealize unrealize;
+} XenDeviceClass;
+
+#define TYPE_XEN_DEVICE "xen-device"
+#define XEN_DEVICE(obj) \
+ OBJECT_CHECK(XenDevice, (obj), TYPE_XEN_DEVICE)
+#define XEN_DEVICE_CLASS(class) \
+ OBJECT_CLASS_CHECK(XenDeviceClass, (class), TYPE_XEN_DEVICE)
+#define XEN_DEVICE_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(XenDeviceClass, (obj), TYPE_XEN_DEVICE)
+
+typedef struct XenBus {
+ BusState qbus;
+} XenBus;
+
+typedef struct XenBusClass {
+ /*< private >*/
+ BusClass parent_class;
+} XenBusClass;
+
+#define TYPE_XEN_BUS "xen-bus"
+#define XEN_BUS(obj) \
+ OBJECT_CHECK(XenBus, (obj), TYPE_XEN_BUS)
+#define XEN_BUS_CLASS(class) \
+ OBJECT_CLASS_CHECK(XenBusClass, (class), TYPE_XEN_BUS)
+#define XEN_BUS_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(XenBusClass, (obj), TYPE_XEN_BUS)
+
+void xen_bus_init(void);
+
+#endif /* HW_XEN_BUS_H */