Re: [PATCH v9 17/26] x86/resctrl: Implement resctrl_arch_config_cntr() to assign a counter with ABMC

[Reinette Chatre]

Hi Babu,

On 10/29/24 4:21 PM, Babu Moger wrote:
> The ABMC feature provides an option to the user to assign a hardware
> counter to an RMID, event pair and monitor the bandwidth as long as it is
> assigned. The assigned RMID will be tracked by the hardware until the user
> unassigns it manually.
> 
> Counters are configured by writing to L3_QOS_ABMC_CFG MSR and
> specifying the counter id, bandwidth source, and bandwidth types.

needs imperative tone

> 
> Provide the interface to assign the counter ids to RMID.
> 
> The feature details are documented in the APM listed below [1].
> [1] AMD64 Architecture Programmer's Manual Volume 2: System Programming
>     Publication # 24593 Revision 3.41 section 19.3.3.3 Assignable Bandwidth
>     Monitoring (ABMC).
> 
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=206537
> Signed-off-by: Babu Moger <babu.moger@xxxxxxx>

Reinette