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Date: Thu, 12 May 2005 17:43:00 -0700
From: Kris Kennaway <kris@obsecurity.org>
To: Nate Lawson <nate@root.org>
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cc: Jacques Vidrine <nectar@FreeBSD.org>
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Subject: Re: cvs commit: src/sys/amd64/amd64 mp_machdep.c
	src/sys/amd64/include cpufunc.h src/sys/i386/i386 mp_machdep.c
	src/sys/i386/include cpufunc.h
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On Thu, May 12, 2005 at 05:38:32PM -0700, Nate Lawson wrote:
> Jacques Vidrine wrote:
> >nectar      2005-05-13 00:05:56 UTC
> >
> >  FreeBSD src repository
> >
> >  Modified files:
> >    sys/amd64/amd64      mp_machdep.c=20
> >    sys/amd64/include    cpufunc.h=20
> >    sys/i386/i386        mp_machdep.c=20
> >    sys/i386/include     cpufunc.h=20
> >  Log:
> >  Add a knob for disabling/enabling HTT, "machdep.hyperthreading_allowed=
".
> >  Default off due to information disclosure on multi-user systems.
> > =20
> >  Submitted by:   cperciva
> >  Reviewed by:    jhb
> > =20
> >  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
>=20
> What's the problem?  I hope this is not about timing attacks on crypto=20
> operations.

Come to Colin's talk tomorrow morning at BSDCan :-)

Kris
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