fix for PCI bridges

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/pci.c b/pci.c
index 3976578..d1d6f63 100644
--- a/pci.c
+++ b/pci.c
@@ -115,6 +115,7 @@
 
 		/* Add PCI bridge device id for the recursive call.  */
 		addend += (bdf >> 3) & 0x1f;
+		pci_foreach(do_block_pci_bridges);
 		pci_foreach(do_setup_pci);
 		addend -= (bdf >> 3) & 0x1f;