[PATCH v3, x86]: Use selfsnoop HW feature to manage conflictingmemory types

[Uros Bizjak]

Hello!

Attached patch enhances v2 patch at [1] to disable selfsnoop with a
kernel command line parameter. The feature is also disabled on all
processors earlier than Core 2 due to Pentium-M errata.

I have investigated the erratas in this area and documented the one
found in the source.

The patch was tested on 4 core i7 (8 threads) and there were no
problems at all with the patched kernel.

[1] http://lkml.org/lkml/2009/4/8/508

Signed-off-by: Uros Bizjak <ubizjak@xxxxxxxxx>

Attachment: selfsnoop.patch
Description: Binary data