IBM POWER9 CPUs Need To Flush Their L1 Cache Between Privilege Boundaries Due To New Bug - PhoronixIBM POWER9 CPUs Need To Flush Their L1 Cache Between Privilege Boundaries Due To New Bug Written by Michael Larabel in Hardware on 20 November 2020 at 07:09 AM EST. 16 Comments CVE-2020-4788 is now public and it's not good for IBM and their POWER9 processors... This new vulnerability means these IBM processors need to be flushing their L1 data cache between privilege boundaries, similar to other r
