K 10
svn:author
V 8
cperciva
K 8
svn:date
V 27
2007-11-08T19:45:19.000000Z
K 7
svn:log
V 393
Change the default for hyperthreading (or, generally speaking, cases
where the L1 cache is shared between CPUs) to disabled for security
reasons.  As in earlier releases, this can be changed by setting
machdep.hyperthreading_allowed=1 in /boot/loader.conf.

This is not an MFC -- no seatbelts in CURRENT.

Approved by:	re (kensmith)
Security:	See FreeBSD-SA-05:09.htt for background material.

END