def resume(self, context, instance, network_info, block_device_info=None):
    'resume the specified instance.'
    xml = self._get_existing_domain_xml(instance, network_info, block_device_info)
    dom = self._create_domain_and_network(context, xml, instance, network_info, block_device_info=block_device_info, vifs_already_plugged=True)
    self._attach_pci_devices(dom, pci_manager.get_instance_pci_devs(instance))
resume the specified instance.
def resume(self, context, instance, network_info, block_device_info=None):
    
    xml = self._get_existing_domain_xml(instance, network_info, block_device_info)
    dom = self._create_domain_and_network(context, xml, instance, network_info, block_device_info=block_device_info, vifs_already_plugged=True)
    self._attach_pci_devices(dom, pci_manager.get_instance_pci_devs(instance))