From: Avi Kivity <avi@argo.co.il>
To: Andi Kleen <ak@suse.de>
Cc: Jiri Slaby <jirislaby@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: FP in kernelspace
Date: Sun, 30 Jul 2006 21:30:43 +0300 [thread overview]
Message-ID: <44CCFAD3.2050607@argo.co.il> (raw)
In-Reply-To: <200607302015.33684.ak@suse.de>
Andi Kleen wrote:
>
> >
> > Cannot work on x86-64, even disregarding fp exceptions, because
> > kernel_fpu_begin() doesn't save the sse state which is used by fp math.
> >
> > No?
>
> It does - FXSAVE saves everything.
>
I see. Thanks for clearing it up.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2006-07-30 18:30 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-30 11:28 FP in kernelspace Jiri Slaby
2006-07-30 11:31 ` Jiri Slaby
2006-07-30 14:32 ` Arjan van de Ven
2006-07-30 14:40 ` Avi Kivity
2006-07-30 14:54 ` Arjan van de Ven
2006-07-30 15:09 ` Jiri Slaby
2006-07-30 15:20 ` Arjan van de Ven
2006-07-30 15:23 ` Avi Kivity
2006-07-30 15:21 ` Avi Kivity
2006-07-30 17:34 ` Andi Kleen
2006-07-30 18:11 ` Avi Kivity
2006-07-30 18:15 ` Andi Kleen
2006-07-30 18:30 ` Avi Kivity [this message]
2006-07-30 18:17 ` Jan Engelhardt
2006-07-30 17:33 ` Andi Kleen
2006-07-30 18:18 ` Jan Engelhardt
2006-07-30 18:28 ` Avi Kivity
2006-07-30 23:11 ` Jan Engelhardt
2006-07-30 17:32 ` Andi Kleen
2006-07-31 0:33 ` Steven Rostedt
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