Re: [PATCH 10/26] x86, pkeys: notify userspace about protection key faults

From: Dave Hansen
Date: Mon Sep 28 2015 - 15:32:32 EST


On 09/28/2015 12:25 PM, Christian Borntraeger wrote:
> We do not have the storage keys per page table, but for the page frame instead
> (shared among all mappers) so I am not sure if the whole thing will fit for s390.
> Having a signal for page protection errors might be useful for us - not sure yet.

Ugh, yeah, that's a pretty different architecture. The stuff we have
here (syscall, VMA flags, etc...) is probably useful to you only for
controlling access to non-shared memory.


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