RE: [PATCH v6 00/40] arm_mpam: Add KVM/arm64 and resctrl glue code

[Rose, Charles]

Hi Ben,

> This version of the mpam missing pieces series sees a couple of things
> dropped or hidden. Memory bandwith utilization with free-running counters
> is dropped in preference of just always using 'mbm_event' mode (ABMC
> emulation) which simplifies the code and allows for, in the future,
> filtering by read/write traffic. So, for the interim, there is no memory
> bandwidth utilization support. CDP is hidden behind config expert as
> remount of resctrl fs could potentially lead to out of range PARTIDs being
> used and the fix requires a change in fs/resctrl. The setting of MPAM2_EL2
> (for pkvm/nvhe) is dropped as too expensive a write for not much value.
>
> There are a couple of 'fixes' at the start of the series which address
> problems in the base driver but are only user visible due to this series.
>

I tested cache occupancy and memory bandwidth allocation on a Dell PowerEdge XE8712 with NVIDIA Grace A02P. Both seem to work as expected.

For the series:

Tested-by: Charles Rose <charles.rose@xxxxxxxx>

Thanks,
Charles

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