RE: [PATCH] x86/resctrl: mba_MBps: Fall back to total b/w if local b/w unavailable

[Luck, Tony]

> If local bandwidth measurement is not available, do not give up on
> providing the "mba_MBps" feedback option completely, make the code fall
> back to using total bandwidth.

N.B. I don't have a system yet that does this. Tested using boot command line
"clearcpuid=cqm_mbm_local" argument to the kernel to fake the non-prescence
of local bandwidth monitoring.

-Tony