[Cbe-oss-dev] [PATCH v4] powerpc: 64K page support for kexec

[Benjamin Herrenschmidt]

On Sun, 2007-04-29 at 18:30 +1000, Paul Mackerras wrote:
> Luke Browning writes:
> 
> > How about the following as an alternative. 
> > 
> >   BUG_ON((hpte_v & 0x4000000000000000UL) && (crashing_cpus == -1));
> >   BUG_ON((size == MMU_PAGE_16G) && (crashing_cpus == -1));
> >   BUG_ON((size == MMU_PAGE_64K_AP) && (crashing_cpus == -1));
> 
> How much effort would it be to add the code to cope with those
> conditions and give the correct answers?  I'd much prefer that to
> these BUG_ONs.

hrm...

1T segments shouldn't be too hard... 16G pages goes with it pretty much,
and AP ... well... do they work on any implementation anyway ?

Ben.