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

[Pierrick Bouvier]

On 1/10/25 08:28, Peter Maydell wrote:
> 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

Thank you Peter.

Regards,
Pierrick