xen: Rename xen_be_evtchn_event

Prepare xen_be_evtchn_event to be shared with frontends:
 * xen_be_evtchn_event -> xen_pv_evtchn_event

Signed-off-by: Emil Condrea <emilcondrea@gmail.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Quan Xu <xuquan8@huawei.com>
Acked-by: Anthony PERARD <anthony.perard@citrix.com>

hw/xen/xen_backend.c

@@ -581,7 +581,7 @@ int xen_be_bind_evtchn(struct XenDevice *xendev)
     }
     xen_pv_printf(xendev, 2, "bind evtchn port %d\n", xendev->local_port);
     qemu_set_fd_handler(xenevtchn_fd(xendev->evtchndev),
-                        xen_be_evtchn_event, NULL, xendev);
+                        xen_pv_evtchn_event, NULL, xendev);
     return 0;
 }
 

hw/xen/xen_pvdev.c

@@ -227,7 +227,7 @@ void xen_pv_printf(struct XenDevice *xendev, int msg_level,
     qemu_log_flush();
 }
 
-void xen_be_evtchn_event(void *opaque)
+void xen_pv_evtchn_event(void *opaque)
 {
     struct XenDevice *xendev = opaque;
     evtchn_port_t port;

include/hw/xen/xen_pvdev.h

@@ -64,7 +64,7 @@ void xenstore_update(void *unused);
 
 const char *xenbus_strstate(enum xenbus_state state);
 
-void xen_be_evtchn_event(void *opaque);
+void xen_pv_evtchn_event(void *opaque);
 void xen_pv_insert_xendev(struct XenDevice *xendev);
 void xen_be_del_xendev(struct XenDevice *xendev);
 struct XenDevice *xen_be_find_xendev(const char *type, int dom, int dev);