Re: [PATCH v3 0/2] arm/ptw: fix missing sctlr.{u}wxn handling in get_phys_addr_v6

[Peter Maydell]

On Mon, 18 Nov 2024 at 15:25, Pavel Skripkin <paskripkin@gmail.com> wrote:
>
> We observed failing WXN tests in our OS which we tracked down to missing
> WXN handling in qemu.
>
> The problem was in that short descriptor format walker did not respect WXN
> bit. To fix it, make it possible to call get_S1prot() from
> get_phys_addr_v6().
>
> Tested localy that all permission-related tests in our OS passed on
> following platforms:
>
> - arm64-virt
> - arm-vexpress (v7)
> - arm-virt     (v7)
>
> Changes from v2:
>   - Fix naming
>   - Fix too early ap decoding in get_phys_addr_lpae
>   - Refactor a bit security-space related code in get_phys_addr_v6()
>
> Changes from v1:
>   - Fix style errors
>   - Add cover letter
>   - Use get_S1prot() instead of open-coded checks
>
> v2: 
> 20241117134931.37249-1-paskripkin@gmail.com/">https://lore.kernel.org/qemu-devel/20241117134931.37249-1-paskripkin@gmail.com/
> v1: 
> 20241114165900.6399-1-paskripkin@gmail.com/">https://lore.kernel.org/qemu-devel/20241114165900.6399-1-paskripkin@gmail.com/
>
> Pavel Skripkin (2):
>   arm/ptw: make get_S1prot accept decoded AP
>   arm/ptw: use get_S1prot in get_phys_addr_v6

Applied to target-arm.next, thanks.

-- PMM