tree f4d95a9159234b66d26e4e8ebe661e105929234b
parent 7825cf10e31c64ece3cac66fb01a742f1094da51
author Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 1256254875 -0700
committer Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> 1257275352 -0800

xen: mask extended topology info in cpuid

A Xen guest never needs to know about extended topology, and knowing
would just confuse it.

This patch just zeros ebx in leaf 0xb which indicates no topology info,
preventing a crash under Xen on cpus which support this leaf.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Cc: Stable Kernel <stable@kernel.org>