Passthrough not working with OpenBSD nor NetBSD

Farid Joubbi djfarid at
Thu Aug 9 17:07:31 UTC 2018

How does KVM and VMware solve that?
I haven't tried PCI passthrough with them, but I assume that it works..?

On Thu, Aug 9, 2018, 18:24 John Baldwin <jhb at> wrote:

> On 8/8/18 11:08 AM, Farid Joubbi wrote:
> > That's what I also thought, but it's not anything I can force it to do,
> is it? Isn't it supposed to detect the MSI interrupt compatibility
> automatically?
> Apparently Open/Net always try to setup INTx before trying MSI even if they
> won't use INTx per the commit log in revision 280725.  We could perhaps try
> to provide a "fake" INTx interrupt that doesn't work, but I'll have to
> think
> about how to implement that.
> --
> John Baldwin

More information about the freebsd-virtualization mailing list