On Wed, 15 Apr 2020 10:06:09 + (UTC), Christophe Leroy wrote:
> To enable/disable kernel access to user space, the 8xx has to
> modify the properties of access group 1. This is done by writing
> predefined values into SPRN_Mx_AP registers.
>
> As of today, a __put_user() gives:
>
> 0d64 :
To enable/disable kernel access to user space, the 8xx has to
modify the properties of access group 1. This is done by writing
predefined values into SPRN_Mx_AP registers.
As of today, a __put_user() gives:
0d64 :
d64: 3d 20 4f ff lis r9,20479
d68: 61 29 ff ff ori r9,r9,