Re: [Qemu-ppc] [PATCH v3 07/10] ppc/pnv: add XSCOM infrastructure

[Benjamin Herrenschmidt]

On Thu, 2016-09-15 at 14:45 +0200, Cédric Le Goater wrote:
>  - The PCB translation is too much of a constraint for a specific
>    XSCOM address space, unless someone can explain me how to address 8
>    bytes at 0xb0021 and another 8 different bytes at 0xb0022. I don't
>    think the address space and the memory regions were designed with
>    this in mind. Please advise !

I'd say just dispatch pcb_addr << 3 to the memory regions (which is
also the P9 translation iirc).

Just add a quirk to the ADU/XSCOM dispatch object to do the additional
unmangling needed on P7/P8

Cheers,
Ben.