[OpenBIOS] [commit] r969 - in trunk/openbios-devel/arch: ppc/qemu ppc64/qemu

Mark Cave-Ayland mark.cave-ayland at siriusit.co.uk
Tue Nov 30 22:57:06 CET 2010

Andreas Färber wrote:

> The callback function apparently provides a way for the OS to take over 
> memory management from OpenFirmware. Thus the relation to ofmem.
> http://dev.haiku-os.org/browser/haiku/trunk/src/system/boot/platform/openfirmware/arch/ppc/mmu.cpp?rev=39430#L636 
> Haiku sets up a new page table based on the one from OpenFirmware, calls 
> set-callback and expects to be asked for future memory allocations etc.
> Andreas

That's really strange - that doesn't seem to match the spec at all, plus 
  I don't see any mention of callbacks in the memory routines within the 
OpenBOOT source code? I'm really not convinced that code is doing what 
it thinks it should.



Mark Cave-Ayland - Senior Technical Architect
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