bhyve rw access to host filesystem?

Hi,

I'd like to have one bhyve vm access the bhyve *host's* filesystem[0]
I can't seem to find instructions how to do this, although 9p looks
promising, am not sure this can be accessed from the host. 
The host runs -current. Can this be done, without resorting to using
the NIC?

[0] a few dirs on the host
[1] rw access by both the guest and the host
[2] both host and guest are freebsd
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