Re: [PATCH v1 2/4] fs/resctrl: Only show 'event_filter' files if events are configurable

[Reinette Chatre]

Hi Ben,

On 2/25/26 12:19 PM, Ben Horgan wrote:
> When the counter assignment mode is mbm_event resctrl assumes the mbm
> events are configurable and exposes the 'event_filter' files. These files
> live at info/L3_MON/event_configs/<event>/event_filter and are used to
> display and set the event configuration.
> 
> ABMC always supports event configuration but for MPAM they are
> independent. Decouple event configuration from counter assignment by only

Could you please elaborate what you mean with "independent" here? If event
configuration is still supported when assignable counter mode is enabled, why
can event configuration interface not just remain as-is? Could resctrl not
display the existing event configuration and if user cannot modify it return
a failure when user attempts to do so?

Reinette