From: Con Kolivas <kernel@kolivas.org>
To: Arjan van de Ven <arjan@infradead.org>
Cc: linux kernel mailing list <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@elte.hu>, ck list <ck@vds.kolivas.org>
Subject: Re: [PATCH] Sample fix for hyperthread exploit
Date: Wed, 1 Jun 2005 22:13:24 +1000 [thread overview]
Message-ID: <200506012213.25445.kernel@kolivas.org> (raw)
In-Reply-To: <1117627597.6271.29.camel@laptopd505.fenrus.org>
On Wed, 1 Jun 2005 22:06, Arjan van de Ven wrote:
> > Comments?
>
> I don't think it's really worth it, but if you go this way I'd rather do
> this via a prctl() so that apps can tell the kernel "I'd like to run
> exclusive on a core". That'd be much better than blindly isolating all
> applications.
I agree, and this is where we (could) implement the core isolation. I'm still
under the impression (as you appear to be) that this theoretical exploit is
not worth trying to work around.
Cheers,
Con
next prev parent reply other threads:[~2005-06-01 12:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-01 11:58 [PATCH] Sample fix for hyperthread exploit Con Kolivas
2005-06-01 12:06 ` Arjan van de Ven
2005-06-01 12:13 ` Con Kolivas [this message]
2005-06-01 17:25 ` Chris Wright
2005-06-01 19:29 ` Arjan van de Ven
2005-06-02 2:49 ` Ingo Molnar
2005-06-02 2:57 ` Con Kolivas
2005-06-02 6:28 ` Amit Shah
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