From 6c808651e327388c22845700e14fe103da9b37cd Mon Sep 17 00:00:00 2001 From: Ross Lagerwall Date: Fri, 30 Jun 2017 13:50:28 +0100 Subject: xen-platform: Cleanup network infrastructure when emulated NICs are unplugged When the guest unplugs the emulated NICs, cleanup the peer for each NIC as it is not needed anymore. Most importantly, this allows the tap interfaces which QEMU holds open to be closed and removed. Signed-off-by: Ross Lagerwall Acked-by: Anthony PERARD Signed-off-by: Stefano Stabellini --- hw/i386/xen/xen_platform.c | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'hw/i386/xen') diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c index 1419fc96d2..f23155832b 100644 --- a/hw/i386/xen/xen_platform.c +++ b/hw/i386/xen/xen_platform.c @@ -102,8 +102,19 @@ static void unplug_nic(PCIBus *b, PCIDevice *d, void *o) } } +/* Remove the peer of the NIC device. Normally, this would be a tap device. */ +static void del_nic_peer(NICState *nic, void *opaque) +{ + NetClientState *nc; + + nc = qemu_get_queue(nic); + if (nc->peer) + qemu_del_net_client(nc->peer); +} + static void pci_unplug_nics(PCIBus *bus) { + qemu_foreach_nic(del_nic_peer, NULL); pci_for_each_device(bus, 0, unplug_nic, NULL); } -- cgit v1.2.3