- pci irq routing: unregister the old IRQ before registering the new one - lower the IRQ line before unregistering it
- pci irq routing: unregister the old IRQ before registering the new one
- lower the IRQ line before unregistering it

marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet,marmolejo/bochs-zet