Re: [PATCH 00/24] x86/resctrl: Merge the CDP resources

[Reinette Chatre]

Hi James,

On 10/30/2020 9:10 AM, James Morse wrote:
> MPAM has an equivalent feature to CDP, but its a property of the CPU,
> not the cache. Resctrl needs to have x86's odd/even behaviour, as that
> its the ABI, but this isn't how the MPAM hardware works. It is entirely
> possible that an in-kernel user of MPAM would not be using CDP, whereas
> resctrl is.

The above seems to distinguish between "in-kernel user of MPAM" and 
resctrl (now obtaining support for MPAM). Could you please provide more 
details on the "in-kernel user of MPAM" and elaborate on how these two 
usages are expected to interact with MPAM concurrently?

Thank you

Reinette