Re: [RFC PATCH 06/16] x86/split_lock: Save #AC setting for split lock in firmware in boot time and restore the setting in reboot
On Sun, May 27, 2018 at 08:45:55AM -0700, Fenghua Yu wrote: > Firmware may contain split locked instructions.
I think that's the wrong attitude. You should mandate in your BIOS development guide that Firmware _MUST_NOT_ contain unaligned LOCK prefixed instructions.