Messages in this thread |  | | From | Matthew Garrett <> | Subject | Re: [PATCH] x86: Lock down MSR writing in secure boot | Date | Sat, 9 Feb 2013 15:11:53 +0000 |
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On Sat, 2013-02-09 at 10:29 +0100, Borislav Petkov wrote: > 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?
Things like Turbostat are useful, although perhaps that information should be exposed in a better way.
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