/* default qdev clean up function for PCI-to-PCI bridge */
void pci_bridge_exitfn(PCIDevice *pci_dev)
{
PCIBridge *s = DO_UPCAST(PCIBridge, dev, pci_dev);
assert(QLIST_EMPTY(&s->sec_bus.child));
QLIST_REMOVE(&s->sec_bus, sibling);
pci_bridge_region_del(s, s->windows);
pci_bridge_region_cleanup(s, s->windows);
memory_region_destroy(&s->address_space_mem);
memory_region_destroy(&s->address_space_io);
/* qbus_free() is called automatically by qdev_free() */
}
void pci_bridge_update_mappings(PCIBridge *br)
{
PCIBridgeWindows *w = br->windows;
/* Make updates atomic to: handle the case of one VCPU updating the bridge
* while another accesses an unaffected region. */
memory_region_transaction_begin();
pci_bridge_region_del(br, br->windows);
br->windows = pci_bridge_region_init(br);
memory_region_transaction_commit();
pci_bridge_region_cleanup(br, w);
}
