I've booted up my Haswell machine and have been playing around with it a bit.
pciconf -cl works well with the machine as well.
Unfortunately I don't have hardware that features iov(4) support. I need help
with this from others. The work has been committed to
^/user/ngie/stable-10-libnv -- I'll try creating some release images soon to
ease testing a bit and post them up to my freefall workspace.