On 23/07/2013, at 11.04, Martin Husemann <mar...@duskware.de> wrote: > On Tue, Jul 23, 2013 at 10:09:28AM +0200, Soren Jorvang wrote: >> The pre-autoconf console code creates a bus_space handle (not a >> subregion of anything) for the console com, which conflicts with puc.c >> later trying to allocate the larger handle that the console is a >> subregion (but not a bus_space_subregion) of. > > An alternative hack would be to unmap the original com console mapping > and update it with a subregion from the puc BAR mapping.
That should probably be part of the proper solution that I mentioned since pci_mapreg_map() only allows mapping whole BAR regions, but for it to be not just another x86 hack, the interaction between puc/com_puc/com needs to be thought out to avoid either killing the console during the child handoff or putting more comcn knowledge into puc.c. -- Soren
