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[Oliver Pinter]

Hi All!

As subpart of my thesis, I implemented Intel SMAP[1] support for FreeBSD.
The current stable version of patch (attached) have compile time
option to enable SMAP.*

A feature complete dynamic version is expected by the end of the
month, which patched the kernel on boot time, when the feautre
presented in CPU.

[1] http://lwn.net/Articles/517475/

patches: https://github.com/opntr/freebsd-patches-2013-tavasz
smap-test: https://github.com/opntr/freebsd-smap-tester

smap_disabled.gif:
Running smap-test without SMAP support: illegal user-space memory
address read/write from kernel-space.

smap_{read,write}.gif:
Running smap-test with SMAP: the kernel must paniced, due an illegal
read from user-space memory address.

* when you applied this patch and enabled the SMAP in kernel and your
CPU does not have SMAP support, the kernel _must_ paniced.
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