Re: [PATCH v2] NUMA: limit first_valid_mfn exposure

[Julien Grall <julien@xxxxxxx>]

Hi Jan,

On 08/01/2024 11:31, Jan Beulich wrote:
> Address the TODO regarding first_valid_mfn by making the variable static
> when NUMA=y, thus also addressing a Misra C:2012 rule 8.4 concern (on
> x86).
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> ---
> Julien suggests something like
>
> STATIC_IF(CONFIG_NUMA) unsigned long first_valid_mfn;
>
> but I view this as non-scalable (or at least I can't see how to
> implement such in a scalabale way) and hence undesirable to introduce.
I don't really see the scalability problem. Can you explain a bit more?

Cheers,

--
Julien Grall