Disable SMT/Hyperthreading in all Intel BIOSes
by from OpenBSD Journal on (#3XD76)
In amessage to tech@,Theo de Raadt (deraadt@)gives an update on the state-of-play regarding processor vulnerabilities:
Two recently disclosed hardware bugs affected Intel cpus: - TLBleed - T1TF (the name "Foreshadow" refers to 1 of 3 aspects of this bug, more aspects are surely on the way)Solving these bugs requires new cpu microcode, a coding workaround,*AND* the disabling of SMT / Hyperthreading.