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

From: Dave Hansen
Date: Fri Nov 11 2016 - 13:06:53 EST


On 11/10/2016 08:08 PM, Ricardo Neri wrote:
> Thanks for the suggestions. Perhaps I can include these metrics in my
> V2. On th other hand, Dave Hansen gave a good argument on potential
> conflicts when, of instance running on an AMD CPU. UMIP is enabled by
> setting a bit in CR4. If that bit is not supposed to be set, that could
> cause a #GP fault.

I just meant that some folks probably appreciate being able to build out
all the Intel-specific features. Not that it causes a functional problem.