Re: [libvirt] [PATCH 4/4] qemu: support live change of all netdev hostside config

On 10/12/2012 05:58 AM, Laine Stump wrote: > This is the final patch to resolve: > > https://bugzilla.redhat.com/show_bug.cgi?id=805071 > > This patch finalizes support live change of any/all hostside config of > a network device as part of the public virDomainUpdateDeviceFlags > API. The changes are done without detaching the device from the guest, > so hopefully disruptions are kept to a minimum. > > Two new functions are created for the task - > qemuDomainDetachNetHostSide() and qemuDomainAttachHostSide() - which > detach and reattach just the host side of a network device, while > leaving the PCI device on the guest side still attached. Calling these > two functions in sequence allows us to completely change the host side > of the device, including type of tap device, where the tap is > connected, bandwidth/vlan/virtualport settings, etc. Bah. This appears to not work properly. I sent mail to qemu-devel asking for clarification/help: http://lists.nongnu.org/archive/html/qemu-devel/2012-10/msg02355.html So in the meantime I guess I need to pursue the "reattach the same tap device to a new bridge" idea as far as it will go, and save this patch for later :-(