On Tue, May 03, 2016 at 02:04:40PM -0700, Dave Hansen wrote:
> My concern was not necessarily with folks booting with 'nosmep', but

Btw, does anything speak for even keeping that 'nosmep' thing?

> with processors that have MPX present and SMEP fused off (or made
> unavailable by a hypervisor) and which are unaffected by this issue.

So we won't init MPX on those...

> People would have to be very careful to never create a processor which
> did not have SMEP but did have MPX, since MPX would effectively be
> unusable on such a processor.

We can disable that combination in qemu too, right?

-- 
Regards/Gruss,
    Boris.

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