cvs commit: src/sys/amd64/amd64 mp_machdep.c src/sys/i386/i386 mp_machdep.c

[Kris Kennaway]

Colin Percival wrote:
> cperciva    2007-11-08 19:45:20 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:        (Branch: RELENG_7)
>     sys/amd64/amd64      mp_machdep.c 
>     sys/i386/i386        mp_machdep.c 
>   Log:
>   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.
>   
>   Revision   Changes    Path
>   1.287.2.1  +1 -1      src/sys/amd64/amd64/mp_machdep.c
>   1.281.2.1  +1 -1      src/sys/i386/i386/mp_machdep.c
> 
> 

What are you waiting for to happen in HEAD, and what work are you doing 
to expedite that?

Kris