powerpc64 memory translations

[Nathan Whitehorn]

Where does it write instead? powerpc64 uses a 1:1 direct map of all  
physical memory. powerpc32 sometimes, but not always, does this.
-Nathan

On Dec 11, 2013, at 12:35 AM, Justin Hibbits 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?
>
> Thanks,
> Justin
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