Re: [PATCH for-4.22] x86/fred: Enable FRED by default on AMD systems

[Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>]

On 6/2/26 6:45 PM, Andrew Cooper wrote:
> FRED is now believed to be complete for AMD systems, and has had its tyres
> kicked by both XenServer and AMD.  Enable FRED by default on capable AMD
> systems (Zen6 and later).
>
> Support on Intel is still not yet complete.  Leave it as tech preview and not
> security supported.
>
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> ---
> CC: Jan Beulich <jbeulich@xxxxxxxx>
> CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> CC: Teddy Astie <teddy.astie@xxxxxxxxxx>
> CC: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>
Release-Acked-by: Oleksii Kurochko <oleksii.kurochko@xxxxxxxxx>

> The issue on Intel is to do with virtualisation of MSR_SPEC_CTRL for PV
> guests, and is waiting on the resolution of a question I've asked Intel.
> ---
>   docs/misc/xen-command-line.pandoc | 6 +++---
>   xen/arch/x86/traps-setup.c        | 4 ++--
>   2 files changed, 5 insertions(+), 5 deletions(-)
Don't we want than add that to CHANGELOG.md that FRED is now enabled by 
default?
Thanks.

~ Oleksii