> If a BAR has the value of 0, we would assume that it is unset yet and > then mark the resource as unset and would reassign it later.
IIRC the PCI spec allows a BAR address of zero.
Certainly some sparc systems have assigned 0 to a BAR.
So assuming a BAR of 0 means it is unset may not be
true for all systems.
David
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