Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses

From: Borislav Petkov
Date: Fri Dec 04 2015 - 17:48:49 EST


On Fri, Dec 04, 2015 at 02:35:38PM -0800, H. Peter Anvin wrote:
> How about this: it is easy too easy to hard code MSR accesses, and the
> last things we need is alien non-GPL drivers doing their own low-level
> hacks bypassing these facilities.

Yeah, that doesn't stop alien, non-GPL drivers from doing

asm("rdmsr ..)

Hell, they can even do naked byte opcodes " ...0f 32... "

But I see your point, thanks!

--
Regards/Gruss,
Boris.

ECO tip #101: Trim your mails when you reply.
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