From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Date: Thu, 22 Oct 2009 23:41:15 +0000 (-0700)
Subject: xen: mask extended topology info in cpuid
X-Git-Tag: v2.6.32-rc7~71^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82d6469916c6fcfa345636a49004c9d1753905d1;p=pandora-kernel.git

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>
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