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>
parent
87ce786a
Please register or sign in to comment