func: static void xen_log_start(MemoryListener *listener,
  
                            MemoryRegionSection *section)
  
  {
  
      XenIOState *state = container_of(listener, XenIOState, memory_listener);
  
  
  
      xen_sync_dirty_bitmap(state, section->offset_within_address_space,
  
                            int128_get64(section->size));
  
  }
  