Hi, > > generally maybe we should just add an ACPI-hotplug capability and > > teach seabios about it? > > I suppose it is possible.
I doubt this solves the problem. As I understand it linux will happily assign io address space for pcie hotplug root ports but not for acpi hotplug root ports. So seabios simply not allocation io address space isn't a problem for pcie hotplug root ports but is for acpi hotplug root ports even though seabios doesn't make a difference. So the patch asks seabios to allocate io address space, which in turn leads to running out of io address space with many ports. Changing the way to request io address space allocation doesn't fix the underlying issue ... take care, Gerd
