Han, Weidong
2010-Jul-16 08:13 UTC
[Xen-devel] [PATCH] x86: use cpuid vector 0xb when available for detecting cpu topology
(Most code is ported from Linux kernel.) 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: Weidong Han <weidong.han@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel