[ovirt-users] oVirt 4.3 node-ng host kernel options for nvidia vGPU

Hi, One of our projects wants to try offering VMs with nvidia vGPU. My co-worker had some problems before, so I thought I'd try the latest 4.3 ovirt-node-ng. In the "Edit Host" -> kernel dialog I see two promising checkbox options Hostdev Passthrough & SR-IOV (which adds to kernel line intel_iommu=on) and Blacklist Nouveau (which adds to kernel line rdblacklist=nouveau) but they seem to be acting as mutually exclusive options, when both are selected the kernel command line box is outlined in red and I can't continue on. Am I wrong to want both options?