On Wed, Dec 19, 2012 at 02:25:44PM -0800, H. Peter Anvin wrote:
> The real question is what we can do to mitigate the damage.
Let's try the first thing that comes to mind: waste a variable MTRR on
it:
[ 0.000000] MTRR variable ranges enabled:
[ 0.000000] 0 base 000000000000 mask FFFF80000000 write-back
[ 0.000000] 1 base 000080000000 mask FFFFC0000000 write-back
[ 0.000000] 2 base 0000C0000000 mask FFFFF0000000 write-back
[ 0.000000] 3 base 000100000000 mask FFFF00000000 write-back
[ 0.000000] 4 base 000200000000 mask FFFFE0000000 write-back
[ 0.000000] 5 base 000220000000 mask FFFFF0000000 write-back
[ 0.000000] 6 disabled
[ 0.000000] 7 disabled
one of those last two. This is a small box though so I'm guessing on 1T
boxes those last two won't be disabled. Jacob?
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
