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Hello Ian > > I tried without unload the 8250 driver and starting the domU resuted > > in an IRQ 4 error. > > So what you really need is to inhibit the 8250 driver from claiming the > ports/irqs associated with the serial points. I don't think you need to > inhibit the driver loading to do this. > > I see /sys/bus/platform/drivers/serial8250/{un,}bind on my systems, so > it's perhaps possible that you can also control this stuff even more > dynamically on a per-port basis too. Thanks a lot-lot for the hint! I was indeed able to unbind the driver from the port with the following command: echo -n "serial8250" > /sys/bus/platform/drivers/serial8250/unbind And domU could be started with serial access! The subject can also be closed. Cheers David > > Ian. |