[coreboot] [PATCH] Istanbul support

Stefan Reinauer stepan at coresystems.de
Mon Apr 12 16:02:37 CEST 2010

> Arne Georg Gleditsch <arne.gleditsch at numascale.com> writes:
>> Regarding hangs, I suspect this might be a PCI config race condition
>> between the cores.  I tried to adjust my configuration to use MMCONFIG
>> to address this.  It didn't seem to be supported out of the box, and I
>> didn't have the time to look into it further at the moment.  I still
>> intend to do so, but it would be nice to know if anyone is using
>> MMCONFIG with fam10 configurations.  Is it supposed to work?
> Having looked at it some more, it is hard to see how mmconf support can
> possibly be functional at the moment.  I've made some progress on
> getting it to work on my s2912 test rig; I'm appending the patch I'm
> currently running.  (This is against r5200.)

Nice... !

I've been wondering before... why this odd approach with read8x and
gs:... instead of just doing normal read8/16/32 ?

Where's %gs set up for romcc_io usage?


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