Similar to PCI controller, the super IO controller also has its own configuration space. The size of the Super IO configuration space is same as PCI configuration space, which is 0xFF (256) bytes.
Regards to how to access this configuration space, please read my previous article:
http://fengweizhang.blogspot.com/2013/04/how-to-access-super-io-registers.html
The seventh byte of the configuration specifies the logical device. I am still looking for the configuration space MAP.
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