powerpc64 memory translations

[Rui Paulo]

On 10 Dec 2013, at 22:35, Justin Hibbits <chmeeedalf at gmail.com> wrote:

> I'm trying to fix a problem with DTrace FBT (it just flat hangs), and
> want to use the oldest trick in the book -- writing to a known address
> at various points.  Problem I have, though, is that writing to 0x10
> virtual, unlike with powerpc32, doesn't write to 0x10 physical.  Is
> there any way to get the mapping for the first page of physical memory,
> so I can do this debugging?  And to make it always available, so that
> I don't have to worry about mapping it when I need to?

Wouldn't pmap_mapdev() work?

--
Rui Paulo