Suresh Siddha bbb65d2d36 x86: use cpuid vector 0xb when available for detecting cpu topology ...

cpuid leaf 0xb provides extended topology enumeration. This interface provides
the 32-bit x2APIC id of the logical processor and it also provides a new
mechanism to detect SMT and core siblings (which provides increased
addressability).

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2008-08-23 17:47:10 +02:00

3.6 KiB

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