On 09/07/2012 12:31 AM, Jan Beulich wrote:
Further, the "6" case is then completely pointless - X86_P6_NOP
depends on X86_64. And with all features the kernel cares about
that got added with Pentium and later being CPUID-enumerable,
the "5" case would then be superfluous too.
The dependency X86_64 -> X86_P6_NOP is actually not inherent; it is a
worksaround for a broken version of Microsoft HyperV presenting an
inconsistent ISA to the guest. We could allow enabling X86_P6_NOP on 32
bits, in which family should be 6.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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