Hi,
For (2), you cannot use bus=X,addr=Y because it makes assumptions about
the PCI topology which may change in newer -M pc's.
Why should the PCI topology for 'pc' ever change?
We'll probably get q35 support some day, but when this lands I expect
we'll see a new machine type 'q35', so '-m q35' will pick the ich9
chipset (which will have a different pci topology of course) and '-m pc'
will pick the existing piix chipset (which will continue to look like it
looks today).
cheers,
Gerd
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