Re: [libvirt] [PATCH 14/14] Add support for network device detach

qemu network devices are hot-unplugged in two stages - first the PCI NIC is removed using 'pci_del <pci_addr>' and then the backend is removed using 'host_net_remove <vlan> <name>'. In order to perform these operations we need to have retained the PCI address, backend name and vlan number.

+ DEBUG("%s: pci_del reply: %s", vm->def->name, reply); + + /* If the command fails due to a wrong PCI address qemu prints + * 'invalid pci address'; nothing is printed on success */ + if (strstr(reply, "Invalid pci address")) { + qemudReportError(conn, NULL, NULL, VIR_ERR_OPERATION_FAILED, + _("failed to detach network device: invalid PCI address %s: %s"), + detach->pci_addr, reply); + goto cleanup; + }