[PATCH v3 4/4] ARM: Implement PAN for LPAE by TTBR0 page table walks disablement

[Linus Walleij]

On Mon, May 13, 2024 at 10:29 PM Linus Walleij <linus.walleij at linaro.org> wrote:

> I guess I should bring out the STM32MP157 board again and retest
> to verify that that one hardware works with this. Any other ideas?

I got this Cortex-A7 board out and booted with LPAE and PAN
using TTBR0 and it boots fine (some kind of OpenEmbedded/YOCTO
system is in it with systemd and all.

Tested with LKDTM provoked crashes and it behaves as expected.

Given Florians report it clearly works on some LPAE:s and not on some
others for some reason! I suppose we need to figure it out.

Catalin do you have some ideas?

Yours,
Linus Walleij