On 2013-01-25 19:44, Gilles Chanteperdrix wrote: > On 01/25/2013 03:06 PM, Jan Kiszka wrote: > >> Hi all, >> >> yesterday I pushed a fix to my for-upstream queue that properly disables >> all xsave-dependent CPU features (AVX/AVX2 namely). However, this is no >> real solution for us as it blocks a lot of acceleration potential on >> current Intel CPUs. >> >> Did anyone already look into this in more details? Is it just a matter >> of implementing the necessary context switching bits? Are there known > >> pitfalls? > > The known pitfalls of FPU support is that we never get it right the > first time. And debugging why it fails is hard.
OK, so no conceptual issues. And it will remain controllable via "noxsave". Still need to discuss details here, but I bet we will look into this soon. Thanks, Jan -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux _______________________________________________ Xenomai mailing list [email protected] http://www.xenomai.org/mailman/listinfo/xenomai
