Re: [ovirt-users] Directly connect NIC or other cards to VM?

----- Original Message ----- > From: "Lior Vernia" <lvernia(a)redhat.com&gt; > To: "David Smith" <dsmith(a)mypchelp.com&gt; > Cc: "users" <users(a)ovirt.org&gt;, "Martin Polednik" <mpoledni(a)redhat.com&gt; > Sent: Monday, February 16, 2015 9:15:41 AM > Subject: Re: [ovirt-users] Directly connect NIC or other cards to VM? > > Hi David, > > On 13/02/15 01:28, David Smith wrote: > > Is there a way to directly connect a specific device (ie, NIC) to a > > particular VM? > > > > I've figured out how to map a specific network interface to a VM, thats > > one step, but in the end I may need direct access to the PCI device itself. > > I think this 3.6 feature might do exactly what you want: > http://www.ovirt.org/Features/hostdev_passthrough > > It's gonna be a while before 3.6 is out, but once the feature is merged > it'll be available if you install the nightly snapshot. CCing Martin > Polednik, the feature owner. Hello, just on the status of the feature (as it's exactly what you require - direct pci device attachment) - the host side is hopefully ~week away from being ready, the UI side will take longer though - if you wanted, you could probably run nightly and spawn the VM yourself and treat is as external VM. CCing Martin Betak, who is the one to blame for the UI :) You also need RHEL 7 (ideal support will be in 7.1) and I suggest reading the chapter on IOMMU groups, as you might need to block (detach from host) other devices than the nic in order to get it passed through. > > > > Second to that, for network interfaces mapped to a particular VM, is > > there a way for the VM to be able to properly detect physical link state > > of that interface? Right now that's a 'configurable option' inside > > network interface settings on the VM in the manager (ie, plugged, not > > plugged, and link state up /down) > > If I'm not mistaken, once you have direct access to the PCI device > you'll be able to query for its actual state using e.g. ethtool. > > > > > Thanks, > > David > > > > > > _______________________________________________ > > Users mailing list > > Users(a)ovirt.org > > http://lists.ovirt.org/mailman/listinfo/users > > >