[coreboot] Rowhammer mitigation: RH activation probability

[emanuele]

Hello everyone,
I know some system has support for a particular feature against 
Rowhammer attack.
The "RH activation probability" settings allows to refresh a row with a 
tunable probability.

For example some AMI BIOS version include this option: 
https://forums.puri.sm/t/row-hammer/793/7

I have found a trace in coreboot code here: 
https://github.com/siro20/coreboot/blob/master/src/vendorcode/intel/fsp/fsp2_0/cannonlake/FspmUpd.h

Anyone know if this option is currently available on coreboot?
Thank you all!