Re: [PATCH] powerpc/32s: Setup the early hash table at all time.

[Christophe Leroy]

Le 29/10/2020 à 22:07, Andreas Schwab a écrit :
> On Okt 01 2020, Christophe Leroy wrote:
>
> > At the time being, an early hash table is set up when
> > CONFIG_KASAN is selected.
> >
> > There is nothing wrong with setting such an early hash table
> > all the time, even if it is not used. This is a statically
> > allocated 256 kB table which lies in the init data section.
> >
> > This makes the code simpler and may in the future allow to
> > setup early IO mappings with fixmap instead of hard coding BATs.
> >
> > Put create_hpte() and flush_hash_pages() in the .ref.text section
> > in order to avoid warning for the reference to early_hash[]. This
> > reference is removed by MMU_init_hw_patch() before init memory is
> > freed.
>
> This breaks booting on the iBook G4.

Can you test patch 
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/9e225a856a8b22e0e77587ee22ab7a2f5bca8753.1604740029.git.christophe.leroy@xxxxxxxxxx/

Thanks
Christophe