tree e2d657ff43c768d3b9f47642fa522cba1c3ffcd8
parent 28df82ebab79c6a2b4295dd94fd8de88196a49df
author venkatesh.pallipadi@intel.com <venkatesh.pallipadi@intel.com> 1219275953 -0700
committer Ingo Molnar <mingo@elte.hu> 1219318054 +0200

x86: PAT Update validate_pat_support for intel CPUs

Pentium III and Core Solo/Duo CPUs have an erratum
" Page with PAT set to WC while associated MTRR is UC may consolidate to UC "
which can result in WC setting in PAT to be ineffective. We will disable
PAT on such CPUs, so that we can continue to use MTRR WC setting.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>