[Skiboot] [RFC PATCH] Use two VSX registers to do initial copy of skiboot

Stewart Smith stewart at linux.vnet.ibm.com
Fri May 22 00:07:19 AEST 2015


Benjamin Herrenschmidt <benh at kernel.crashing.org> writes:
> On Thu, 2015-05-21 at 18:40 +1000, Stewart Smith wrote:
>> Note my awful fiddling of MSR so that I can use VSX registers :)
>
> Is this really worth it ? :-) I like being conservative in that
> code...

Maybe, maybe not... Mikey is playing with some simulator foo and wanting
to get cycle count down. Of course, if you change the load location then
you avoid it, but then you also execute a bit differently than on real
hardware.



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