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rombios Info port: msg#00142

Subject: rombios Info port
Hi,

The rombios Info port at address 0xfff0 causes trouble when using PCI
devices because most OSes temporary remap the I/O ports of a PCI device
to the maximum address in order to determine the range of the I/O port
region of the device. So when the PCI device remaps itself to the
requested maximum port (for region size determination by the OS) we run
into trouble with that rombios Info port.
The file iodev/biosdev.cc states that 0xfff0 is a legacy port... is it
still needed?


Frank.





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