713  * Periodic update of display.
717  * (resize, screen update) outside this function.
719  * an update we know it is active.
731         /* we don't get update notifications, thus use the  in xenfb_update()
757                       "update: resizing: %dx%d @ %d bpp%s\n",  in xenfb_update()
766         xen_pv_printf(&xenfb->c.xendev, 3, "update: fullscreen\n");  in xenfb_update()
769         xen_pv_printf(&xenfb->c.xendev, 3, "update: %d rects\n",  in xenfb_update()
778         xen_pv_printf(&xenfb->c.xendev, 3, "update: nothing\n");  in xenfb_update()
835             x = MAX(event->update.x, 0);  in xenfb_handle_events()
836             y = MAX(event->update.y, 0);  in xenfb_handle_events()
837             w = MIN(event->update.width, xenfb->width - x);  in xenfb_handle_events()
838             h = MIN(event->update.height, xenfb->height - y);  in xenfb_handle_events()
840                 xen_pv_printf(&xenfb->c.xendev, 1, "bogus update ignored\n");  in xenfb_handle_events()
843             if (x != event->update.x ||  in xenfb_handle_events()
844                 y != event->update.y ||  in xenfb_handle_events()
845                 w != event->update.width ||  in xenfb_handle_events()
846                 h != event->update.height) {  in xenfb_handle_events()
847                 xen_pv_printf(&xenfb->c.xendev, 1, "bogus update clipped\n");  in xenfb_handle_events()
915     if (xenstore_read_fe_int(xendev, "feature-update", &fb->feature_update) == -1)  in fb_initialise()
918         xenstore_write_be_int(xendev, "request-update", 1);  in fb_initialise()
920     xen_pv_printf(xendev, 1, "feature-update=%d, videoram=%d\n",  in fb_initialise()