On Wed, 4 Jun 2014, H. Peter Anvin wrote: > > Also IIRC PCI-PCI bridges only forward port I/O space accesses > > within the low 64kB. > > Not true. It must have been an implementation-specific constraint then (e.g. DECchip 21050), it's been a while since I looked into it. Thanks for straightening me out. Maciej -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html