RE: [PATCH v4] [x86] detect and report lack of NX protections

From: Yuhong Bao
Date: Thu Nov 12 2009 - 13:01:49 EST




>> The last column should actually be "no message", "impossible", "impossible".
>
> Ah, yes, very true.
Nope, not only can it be disabled in the BIOS, but also don't forget Intel's first D0 stepping Nocona Xeon x86-64 CPUs, which do not have NX.
> (the class of machines without PAE being
> larger than those without NX and with PAE).Nope also. Clue: Most post-Pentium Pro Intel CPUs and all AMD CPUs since the K7 has PAE available as a CPU feature.
Yuhong Bao
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