On 1 May 2013 03:07, Rusty Russell rusty@rustcorp.com.au wrote:
An emergency output is a reasonable idea, and this is a reasonable implementation. The question is practical: will it be used? Because we don't implement reasonable ideas which aren't going to be used.
If you think it fits reasonably into the virtio spec (ie doesn't implement things at the wrong level of the transport/backend abstraction) then we can implement it in QEMU, and I think it makes more sense to do this than to throw in a random extra serial port.
To be actually useful we need to also specify something in the device tree to say "here is where you will find your emergency output and what it is".
thanks -- PMM