pci_cfg_save
pci_cfg_save(dinfo->pci.cfg.dev, &dinfo->pci, 0);
pci_cfg_save(dinfo->pci.cfg.dev, &dinfo->pci, 1);
pci_cfg_save(dev, &dinfo->pci, 1);
pci_cfg_save(dev, dinfo, 0);
pci_cfg_save(child, dinfo, 0);
pci_cfg_save(child, dinfo, 1);
pci_cfg_save(child, device_get_ivars(child), 1);
pci_cfg_save(child, dinfo, 1);
pci_cfg_save(dev, dinfo, 0);
void pci_cfg_save(device_t, struct pci_devinfo *, int);