IBM POWER9 CPUs Need To Flush Their L1 Cache Between Privilege Boundaries Due To New Bug

from Phoronix on 2020-11-20 12:09 (#5AMQB)

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 recent CPU nightmares...

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