On Mon, 25 Sep 2023 20:31:14 +0200, Christophe Leroy wrote:
> This series reworks _PAGE_FLAGS on all platforms in order
> to implement execute-only protection on all powerpc.
>
> For all targets except 40x and 604 it will be a real execute-only
> protection as the hardware and/or software allows a distinct protection.
>
> For 40x and 604 that's a poor's man execute-only protection in the
> way that once the page is in the TLB it can be executed. But it's
> better than nothing and allows to have a similar implementation for
> all sorts of powerpc.
>
> [...]
Patches 1 and 2 applied to powerpc/fixes.
[01/37] powerpc/8xx: Fix pte_access_permitted() for PAGE_NONE
https://git.kernel.org/powerpc/c/5d9cea8a552ee122e21fbd5a3c5d4eb85f648e06
[02/37] powerpc/64e: Fix wrong test in __ptep_test_and_clear_young()
https://git.kernel.org/powerpc/c/5ea0bbaa32e8f54e9a57cfee4a3b8769b80be0d2
cheers
