Re: [OpenBIOS] [PATCH 3/6] Introduce va2pa() and pa2va() functions for PPC for subsequent use by OFMEM.

[Mark Cave-Ayland]

On 30/12/10 22:43, Andreas Färber wrote:
> > Possibly, although I took a glance at the hash table code and couldn't
> > immediately get my head around how to come up with the reverse mapping.
>
> There's a list of translations in ofmem_t that we'd have to iterate
> through, no? :)

IIRC the translations list doesn't contain the mappings for the ROM 
itself as the pages are mapped directly during startup. But since 
va2pa() and pa2va() are only used by ofmem_posix_memalign() (i.e. 
internal ofmem_malloc() allocations only), they are guaranteed to lie 
within the address space for the ROM image which makes things easier.

ATB,

Mark.