Gleb Natapov <g...@redhat.com> writes:
> Prevent two devices from claiming the same io port.
Really?
Your new check for double-claim is in the new isa_init_ioport(), which
is for ISADevice only. Thus, only qdevified ISA devices can opt for
this protection, by calling isa_init_ioport(). It doesn't protect from
devices who don't or can't opt in, such as PCI devices.
Anyway, we already check for double-claim in
register_ioport_{read,write}(). The check has issues --- hw_error() is
wrong there for hot plug. But it's where the check should be, isn't it?
