On Thu, Oct 1, 2020 at 1:43 PM Chang S. Bae <chang.seok.bae@xxxxxxxxx> wrote: > > "xstate.disable=0x6000" will disable AMX on a system that has AMX compiled > into XFEATURE_MASK_USER_SUPPORTED. Can we please use words for this? Perhaps: xstate.disable=amx,zmm and maybe add a list in /proc/cpuinfo or somewhere in /proc or /sys that shows all the currently enabled xsave states. > > "xstate.enable=0x6000" will enable AMX on a system that does NOT have AMX > compiled into XFEATURE_MASK_USER_SUPPORTED (assuming the kernel is new > enough to support this feature). This sounds like it will be quite confusing to anyone reading the kernel code to discover that a feature that is not "SUPPORTED" is nonetheless enabled.
