Re: [PATCH] prctl,x86 Add PR_[GET|SET]_CPUID for controlling the CPUID instruction.
flat view
From: Borislav Petkov <hidden>
Date: 2016-09-12 17:18:41
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On Mon, Sep 12, 2016 at 09:56:11AM -0700, Andy Lutomirski wrote:
This should have a cpufeature bit and show up in /proc/cpuinfo. That
Haha, test a cpufeature with a faulting CPUID :-)
Yeah, we need a synthetic flag and query MSR_PLATFORM_INFO[31] which
denotes whether the other MSR - MISC_FEATURES_ENABLES - is there and bit
0 is defined.
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Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
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