On 1/20/24 09:03, Paul B. Henson wrote:
We've been running Debian 11 for a while, using sr-iov:
<network> <name>sr-iov-intel-10G-1</name> <uuid>6bdaa4c8-e720-4ea0-9a50-91cb7f2c83b1</uuid> <forward mode='hostdev' managed='yes'> <pf dev='eth2'/> </forward> </network>
and allocating vf's from the pool:
<interface type='network' trustGuestRxFilters='yes'> <mac address='52:54:00:08:da:5b'/> <source network='sr-iov-intel-10G-1'/> <vlan> <tag id='50'/> </vlan> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </interface>
After upgrading to Debian 12, when I try to start any vm which uses the trustGuestRxFilters option, it fails to start with the message:
error: internal error: unable to execute QEMU command 'query-rx-filter': invalid net client name: hostdev0
I think it may be a regression caused by the following commit: https://gitlab.com/libvirt/libvirt/-/commit/060d4c83ef436cf56abfad51a4d64c39... (contained in libvirt-8.9.0) In two functions (qemuProcessRefreshState() and qemuProcessReconnect()) there's a call to qemuProcessRefreshRxFilters() added. And since you have trustGuestRxFilters='yes' it then proceeds and queries QEMU on the monitor for MAC address. Let me see if I can cook up a patch, since I'm the one who broke it. Michal