[coreboot] More v3 quesions

ron minnich rminnich at gmail.com
Fri Oct 24 03:04:31 CEST 2008

On Thu, Oct 23, 2008 at 5:30 PM, Corey Osgood <corey.osgood at gmail.com> wrote:
> I've got a few more questions that I could probably figure out answers to by
> testing, but hopefully it's easier just to ask:
> * If a device is defined in the dts, but disabled during
> phase4_enable_disable which renders the device hidden, what will/should v3
> do?

the device should end up not even being found. marc felt that
phase4_enable_disable was ill-defined and we are working on making
this clearer.

> * If another device appears where the disabled device should have been (in
> this case, the ide controller is now where sata used to be), what should
> happen? Will the ide controller's config (that was intended for another
> location) be used? In this case, it's D10F0 and F1.

It should not because the devid and vendor id should not match.

> * phase4_enable_disable passes the actual device it's enabling/disabling,
> right?


> * What's the format of devfn (as in dev->path.pci.devfn)? dev << 4 |
> function?

dev <<3 | fn


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