Re: [PATCH v2 0/3] Change default pointer authentication algorithm on aarch64 to impdef

[Peter Maydell]

On Thu, 19 Dec 2024 at 18:32, Pierrick Bouvier
<pierrick.bouvier@linaro.org> wrote:
>
> qemu-system-aarch64 default pointer authentication (QARMA5) is expensive, we
> spent up to 50% of the emulation time running it (when using TCG).
>
> Switching to pauth-impdef=on is often given as a solution to speed up 
> execution.
> Thus we talked about making it the new default.
>
> The first patch introduce a new property (pauth-qarma5) to allow to select
> current default algorithm.
> The second one change the default.
> The third one updates documentation.
>
> v2:
> - ensure we don't break migration compatibility, by using a specific backward
>   compatible property.
> - added some documentation about migration for arm virt machine model.

Other than a minor change to the 3rd docs patch which I'll note there:
applied to target-arm.next, thanks.

-- PMM