On 01/19/2011 07:15 AM, Markus Armbruster wrote:
So they interact with KVM (need kvm_state), and they interact with the
emulated PCI bus. Could you elaborate on the fundamental difference
between the two interactions that makes you choose the (hypothetical)
KVM bus over the PCI bus as device parent?
It's almost arbitrary, but I would say it's the direction that I/Os flow.
But if the underlying observation is that the device tree is not really
a tree, you're 100% correct. This is part of why a factory interface
that just takes a parent bus is too simplistic.
I think we ought to introduce a -pci-device option that is specifically
for creating PCI devices that doesn't require a parent bus argument but
provides a way to specify stable addressing (for instancing, using a
linear index).
Regards,
Anthony Liguori
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