On Thu, Oct 5, 2017 at 11:57 AM, christophe leroy
wrote:
>
>
> Le 05/10/2017 à 19:30, Kees Cook a écrit :
>>
>> On Thu, Oct 5, 2017 at 12:49 AM, Christophe LEROY
>> wrote:
>>>
>>>
>>>
>>> Le 05/10/2017 à 05:45, Kees Cook a écrit :
Le 05/10/2017 à 19:30, Kees Cook a écrit :
On Thu, Oct 5, 2017 at 12:49 AM, Christophe LEROY
wrote:
Le 05/10/2017 à 05:45, Kees Cook a écrit :
When available, CONFIG_KERNEL_RWX should be default-enabled.
On PPC32, this option implies deactivating BATs and/or
On Thu, Oct 5, 2017 at 12:49 AM, Christophe LEROY
wrote:
>
>
> Le 05/10/2017 à 05:45, Kees Cook a écrit :
>>
>> When available, CONFIG_KERNEL_RWX should be default-enabled.
>
>
> On PPC32, this option implies deactivating BATs and/or LTLB mapping of the
> linear kernel
Le 05/10/2017 à 05:45, Kees Cook a écrit :
When available, CONFIG_KERNEL_RWX should be default-enabled.
On PPC32, this option implies deactivating BATs and/or LTLB mapping of
the linear kernel address space, hence a significant performance
degradation.
So at least on PPC32, it should