Re: [PATCH] powerpc/uaccess: Don't set KUEP by default on book3s/32
From: Michael Ellerman
Date: Tue Jun 09 2020 - 01:28:54 EST
On Wed, 15 Apr 2020 14:57:11 +0000 (UTC), Christophe Leroy wrote:
> On book3s/32, KUEP is an heavy process as it requires to
> set/unset the NX bit in each of the 12 user segments
> everytime the kernel is entered/exited from/to user space.
>
> Don't select KUEP by default on book3s/32.
Applied to powerpc/next.
[1/1] powerpc/uaccess: Don't set KUEP by default on book3s/32
https://git.kernel.org/powerpc/c/c3ba4dbbd1d05b49ec01efe098e0a78857d3ce22
cheers