Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions

[Borislav Petkov]

On Thu, Nov 10, 2016 at 08:08:07PM -0800, Ricardo Neri wrote:
> UMIP is enabled by setting a bit in CR4. If that bit is not supposed
> to be set, that could cause a #GP fault.

Yeah, you do check CPUID first, AFAICT, so you should be ok...

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