On Linux kernel >=5.1.13 you can add mitigations=off kernel boot parameter to turn off all mitigations. There are more granular parameters that are supported b

On Linux kernel >=5.1.13 you can add mitigations=off kernel boot parameter to turn off all mitigations. There are more granular parameters that are supported by all kernels implementing CPU mitigations: noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off mitigations=off https://unix.stackexchange.com/questions/554908/disable-spectre-and-meltdown-mitigations https://unix.stackexchange.com/questions/554908/disable-spec...