azalia chipset not working with xen

[Pierrick Brossin <pierrick%bs-network.net@localhost>]

Hey!

As I as no sound when using the xen kernel I decided to check why and it
seems the reason is that azalia is missing in the kernel devices.
So I added it. It seems to be recognized but then the kernel crashes and
says:

Xen clock: using event channel 11
uvm_fault (0xc0971140, 0xbff2d000, 2) -> 0xe
kernel: supervisor trap page fault, code=0
stopped in pid 0.1 (swapper) at netbsd: _bus_dmamem_map 
+ 0x14d: movl %edx, 0xbfc00000(%eax)

is there anything that needs to be done on the azalia driver so it works
in xen ?

Thanks

-Pierrick Brossin