f162252e25
Rework and simplification of teardown of the macvtap device. Basically all devices with the same MAC address and link device are kept alive and not attempted to be torn down. If a macvtap device linked to a physical interface with a certain MAC address 'M' is to be created it will automatically fail if the interface is 'up'ed and another macvtap with the same properties (MAC addr 'M', link dev) happens to be 'up'. This will prevent the VM from starting or the device from being attached to a running VM. Stale interfaces are assumed to be there for some reason and not stem from libvirt. In the VM shutdown path, it's assuming that an interface name is always available so that if the device type is DIRECT it can be torn down using its name. * src/util/macvtap.h src/libvirt_macvtap.syms: change of deleting routine * src/util/macvtap.c: cleanups and change of deleting routine * src/qemu/qemu_driver.c: change cleanup on shutdown * src/qemu/qemu_conf.c: don't delete Macvtap in qemudPhysIfaceConnect()
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>