On Sat, 2011-11-05 at 11:53 +0100, Andy Polyakov via RT wrote:
> > x86cpuid.pl instead is completely broken:
> >
> > - the whole test is bypassed if XSAVE=1, which makes absolutely no sense.
> > x86_64cpuid.pl is right in testing OSXSAVE
>
> No, the test is bypassed if XSAVE is 0, not 1. XSAVE being 0 also
> implies that AVX flag [as well as FMA and XOP] is 0, which is why is
> jumps to 'done' and not 'clear_avx'.
This assertion is unfortunately not true on RHEL-6 guests on AVX capable
CPUs in XEN VM.
--
Tomas Mraz
No matter how far down the wrong road you've gone, turn back.
Turkish proverb
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