To clarify parent comment: if you understand the security risks and wish to turn off these mitigations, on modern kernels the entirety of the linked website's kernel args can be shortened to:
mitigations=off
All of the rest is now redundant.TIL: the default `mitigations` value, `auto`, leaves SMT enabled—even if it's vulnerable(!!!)—to avoid surprising sysadmins who upgrade to find SMT disabled. The full protection, non-default option is:
mitigations=auto,nosmt
Thanks for the doc link!