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Re: [Qemu-devel] Register uhci_reset() callback.

From: Paul Brook
Subject: Re: [Qemu-devel] Register uhci_reset() callback.
Date: Tue, 16 Jun 2009 20:16:29 +0100
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> If any initialisation order might occur, then you really need all the
> states to be restored, including output levels, without any side
> effects, and then enable processing in all devices together.

There is no output or input level state, other than implicitly as part of 
device internal state. qemu_irq is a stateless mechanism for communicating 
level change events. In effect we only model edge triggering, and individual 
devices emulate level triggering on top of that.


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