RE: [tip:x86/smap] x86-32: Start out eflags and cr4 clean
Date
Fri, 23 Nov 2012 19:49:29 -0800
> + * Specifically, cr4 exists if and only if CPUID exists, > + * which in turn exists if and only if EFLAGS.ID exists. This may be true for *Intel* 486 CPUs as VME was implemented at the same time as CPUID, but I am not sure that it is true for AMD 486 CPUs.