On 6 July 2016 at 11:04, Michael Rolnik <mrol...@gmail.com> wrote:
> how to create io space device and how to map it?

Conceptually it's no different to handling memory mapped
devices. get_system_io() returns the memory region for the IO
space, and you add devices to it with memory_region_add_subregion().

thanks
-- PMM

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