On Thu, Aug 04, 2022 at 03:07:17PM +0200, Martin Kletzander wrote:
Signed-off-by: Martin Kletzander <mkletzan@redhat.com> --- docs/formatdomain.rst | 24 ++++++++++++++++++++++++ src/ch/ch_monitor.c | 1 + src/conf/domain_conf.c | 10 ++++++++++ src/conf/domain_conf.h | 1 + src/conf/netdev_bandwidth_conf.c | 1 + src/conf/schemas/domaincommon.rng | 7 +++++++ src/libxl/libxl_conf.c | 1 + src/libxl/xen_common.c | 1 + src/lxc/lxc_controller.c | 1 + src/lxc/lxc_driver.c | 3 +++ src/lxc/lxc_process.c | 4 +++- src/qemu/qemu_command.c | 4 ++++ src/qemu/qemu_domain.c | 1 + src/qemu/qemu_hotplug.c | 3 +++ src/qemu/qemu_interface.c | 2 ++ src/qemu/qemu_process.c | 2 ++ src/qemu/qemu_validate.c | 1 + src/vmx/vmx.c | 1 + tools/virsh-domain.c | 1 + 19 files changed, 68 insertions(+), 1 deletion(-)
diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst index adfdd7b7a5ac..ed0d9c19593b 100644 --- a/docs/formatdomain.rst +++ b/docs/formatdomain.rst @@ -5240,6 +5240,30 @@ which the UDP socket packets will originate from the QEMU host. :since:`Since </devices> ...
+Dummy network interface +^^^^^^^^^^^^^^^^^^^^^^^ + +An unconnected network interface sounds pretty pointless, but can show up for +example with VMWare when libvirt does not have any more information to provide. +Two such scenarios are currently known: + +1) network interface exists, but is not connected to any existing network +2) the interface is connected to something known as VMWare Distributed Switch + +The difference between these two is not (yet?) discoverable by libvirt, so at +least the information gathered from the hypervisor is provided in the +element. :since:`Since 8.7.0` + +:: + + ... + <devices> + <interface type='dummy'> + <mac address='52:54:00:22:c9:42'/> + </interface> + </devices> + ...
Calling this 'dummy' is not very desirable naming. Especially since the distributed switch config is handled separately, we're just left with the case of a network interface without any host backend. IMHO this should just be type="none", and would likely be viable for QEMU too. With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|