Philip Blundell writes:
> I don't have the PCI specification here to check, but while that may be true
> in some theoretical sense, in practice all reasonable implementations keep
> BAR and irq line values cached rather than going to config space every time.
> If the mapping for a device is changed it is reasonable to have to restart
> that device.
Hardware devices do not - the hardware checks the BARs each time.
> I have never claimed that the patch you are thinking about does everything you
> need for a plug-in card implementation; it is necessary, but not sufficient.
> Last time the issue was raised you refused to even discuss it so I put that
> on the back burner.
Last time, I did not refuse to discuss the problem. I may have missed replying
to some message, but that's not a refusal.
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