Re: [PATCH v2 3/3] x86/resctrl: Add "*" shorthand to set minimum io_alloc CBM for all domains

Moger, Babu
2025-12-19T00:40:29Z

Hi Aaron,

On 12/18/2025 6:31 PM, Aaron Tomlin wrote:
> On Thu, Dec 18, 2025 at 03:56:24PM -0600, Moger, Babu wrote:
>>> Why is io_alloc special? The same simple change could apply to
>>> parse_line() to allow setting all domains in a resource to be set to
>>> the same value:
>
> Hi Tony, Babu,
>
>> Yes. I am fine with that approach. Treat "*" equivalent for all the
>> resources not just io_alloc.
>
> No. While I appreciate the desire for a more uniform interface, I would
> strongly suggest that this particular change remain applicable only to
> io_alloc for the time being. If I recall correctly, the architectural
> requirements for other resources differ enough that the suggested approach
> may not be universally applicable or appropriate in every case, no?
>

Yes. That is correct. Lets do this only for io_alloc.

Reinette commented on the already.

https://lore.kernel.org/lkml/a76c2eee-2a64-42ab-b81c-90638321cd15@intel.com/

Thanks
Babu