On Tue, Aug 16, 2022 at 12:52:58PM +0000, Andrew Cooper wrote:
> One minor point. Stuff 32 slots.
>
> There are Intel parts out in the world with RSBs larger than 32 entries,
> and this loop does not fill the entire RSB on those.
>
> This is why the 32-entry stuffing loop is explicitly not supported on
> eIBRS hardware as a general mechanism.
I'm guessing there will be an Intel patch forthcoming, making that
RSB_CLEAR_LOOPS more dynamic, based on the current model.
:-)
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
