Re: [PATCH] powerpc/mm/32s: only use MMU to mark initmem NX if STRICT_KERNEL_RWX

Andreas Schwab
2019-06-15T14:39:53Z

On Jun 15 2019, Christophe Leroy <christophe.leroy@c-s.fr> wrote:

> Andreas Schwab <schwab@linux-m68k.org> a écrit :
>
>> If STRICT_KERNEL_RWX is disabled, never use the MMU to mark initmen
>> nonexecutable.
>
> I dont understand, can you elaborate ?

It breaks suspend.

> This area is mapped with BATs so using change_page_attr() is pointless.

There must be a reason STRICT_KERNEL_RWX is not available with
HIBERNATE.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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