On Fri, Nov 28, Olaf Hering wrote:
> I wonder if the missing disable of the tap device is intentional, or
> just an oversight, or if its just to complicated to get from a
> "PCIDevice *" to the other end and call the ->cleanup function.
qemu-traditional did just close all tap devices. With qemu-u
Xen does a shutdown of the emulated PCI network device in
pci_unplug_nics. But this just disables the PCI device. The tap device
for a given emulated card remains active because nothing closes the
file descriptor.
The cmdline for qemu contains something like "-device
rtl8139,id=nic0,netdev=net0,