cvs commit: src/sys/amd64/amd64 mp_machdep.csrc/sys/amd64/include cpufunc.h src/sys/i386/i386 mp_machdep.c src/sys/i386/include cpufunc.h

Nate Lawson nate at root.org
Thu May 12 17:38:36 PDT 2005


Jacques Vidrine wrote:
> nectar      2005-05-13 00:05:56 UTC
> 
>   FreeBSD src repository
> 
>   Modified files:
>     sys/amd64/amd64      mp_machdep.c 
>     sys/amd64/include    cpufunc.h 
>     sys/i386/i386        mp_machdep.c 
>     sys/i386/include     cpufunc.h 
>   Log:
>   Add a knob for disabling/enabling HTT, "machdep.hyperthreading_allowed".
>   Default off due to information disclosure on multi-user systems.
>   
>   Submitted by:   cperciva
>   Reviewed by:    jhb
>   
>   Revision  Changes    Path
>   1.254     +101 -0    src/sys/amd64/amd64/mp_machdep.c
>   1.148     +8 -0      src/sys/amd64/include/cpufunc.h
>   1.248     +101 -0    src/sys/i386/i386/mp_machdep.c
>   1.144     +8 -0      src/sys/i386/include/cpufunc.h

What's the problem?  I hope this is not about timing attacks on crypto 
operations.

-- 
Nate


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