On 05/19/2011 07:49 PM, Jan Kiszka wrote:
>
> If you have overlapping BARs, the PCI bus will always send the request
> to a single device based on something that's implementation specific.
> This works because each PCI device advertises the BAR locations and
> sizes in it's config space.
That's not a use case for priorities at all. Priorities are useful for
PAM and SMRAM-like scenarios.
Correct. Priorities are also useful to decide if BARs hide RAM or
vice-versa (determined by the PCI container's priority vs. the RAM
container priorities, not individual BARs' priorities).
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
