Re: [PATCH v5 00/41] arm_mpam: Add KVM/arm64 and resctrl glue code

From: Ben Horgan

Date: Wed Mar 18 2026 - 07:21:27 EST


Hi Howard,

On 3/18/26 09:52, Howard Zhang wrote:
> Hi Ben, James,
>
> I have a few questions regarding MPAM support in the kernel:
>
> Are there any plans to upstream L3 partitioning with capacity-based allocation (in addition to the existing way-based partitioning)?

Yes, there is some preliminary work required to establish how new schema will be added to
resctrl but I expect cache capacity, CMIN/CMAX, to be some of the first features to use it.
[1] has some discussion on now to introduce new schema.

[1] https://lore.kernel.org/lkml/aPtfMFfLV1l%2FRB0L@xxxxxxxxxxxxxxx/

>
> Thanks for your time.
>
> Best regards,
> Howard

Thanks,

Ben