SR-IOV support with own PXE rom

Hi,

Is there any way to configure the usage of own PXE roms with SR-IOV vNICs?

It is possibel to configure own ROM-s with e1000 NIC like this:

e1000bios.filename = "/usr/lib/vmware/resources/8086100f.mrom"

And also possible to configure eg.: MAC address to an SR-IOV vNIC with pciPassthru0.MACAddress parameter.
But I could not find any way to combine the two.

Thanks, 
Gerg0