It's available on my laptop at least: $ egrep '^(model name|microcode)' /proc/cpuinfo | head -n2 model name : Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz m

It's available on my laptop at least: $ egrep '^(model name|microcode)' /proc/cpuinfo | head -n2 model name : Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz microcode : 0x9e $ egrep -o ' (hle|rtm) ' /proc/cpuinfo | head -n2 hle rtm This is a mobile chip and an old stepping (and running the microcode that supposedly addresses the issue, presumably by disabling it on 'bad' chips?), so I'd be surprised if newer chips (especially server ones) didn't have it.