Floating-point in kernel space

Kip Macy kip.macy at gmail.com
Sat Mar 10 17:49:54 UTC 2007


On 3/10/07, Maslan <maslanbsd at gmail.com> wrote:
> > It would be helpful to know why you need this support as well
>
> I just wanted to know the idea behind not having FP in kernel-space.

Saving and restoring FPU registers adds overhead to thread context
switching and there has never been a legitimate need for it.

 -Kip


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