two linux 2.6 kernels on two ppc405 (xupv2p) ?

Hi all,
I want to implement a multiprocessor system managed by a linux kernel on the xupv2p.
I knwo that there is no cache coherency between the two ppc405 cores. Consequently,
SMP linux can not be used.
So the only solution is to install two linux kernels, each on a ppc processor,
and to make them communicate with shared memory.
My questions are:
does someone succeed in doing this?
Is it possible to do this ?

thanks