Re: [PATCH] x86: Lock down MSR writing in secure boot

From: Borislav Petkov
Date: Sat Feb 09 2013 - 04:29:41 EST

On Fri, Feb 08, 2013 at 10:45:35PM -0800, Kees Cook wrote:
> Also, _reading_ MSRs from userspace arguably has utility that doesn't
> compromise ring-0.

And to come back to the original question: what is that utility, who
would need it on a secure boot system and why?


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