On Wed, May 18, 2005 at 11:47:23AM +0200, Bodo Stroesser wrote:
> I also thought about not saving FP-regs on each kernel entry. But if you do
> this optimization, you need to save / restore FP-regs on switch_to. Also you
> need to get the FP-regs when setting up a signal-handler stackframe. And 
> they
> have to be restored on sys_(rt_)sigreturn from the values found in the
> stackframe.

True, but these are much less frequent than kernel entries/exits.

> I hope, I didn't miss some other places that would need adaption.

Offhand, this sounds right.

                                Jeff


-------------------------------------------------------
This SF.Net email is sponsored by Oracle Space Sweepstakes
Want to be the first software developer in space?
Enter now for the Oracle Space Sweepstakes!
http://ads.osdn.com/?ad_id=7412&alloc_id=16344&op=click
_______________________________________________
User-mode-linux-devel mailing list
User-mode-linux-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/user-mode-linux-devel

Reply via email to