[coreboot] [RFC] kill unwanted_vpci, use "hidden" property instead

Stefan Reinauer stepan at coresystems.de
Thu May 8 16:51:57 CEST 2008


ron minnich wrote:
> On Thu, May 8, 2008 at 7:22 AM, Stefan Reinauer <stepan at coresystems.de> wrote:
>
>   
>> Why would you not hide a non-enabled device?
>>     
>
> in some cases we actually have to allocate the BARs and so on and
> leave it disabled -- we don't know if the OS wants it, but if the OS
> wants it, it has to work. This is one of the less intuitive bits of
> the device bringup process.
>   

Which device is that?

>> In Linux it is, isn't it? I thought to remember it won't show devices
>> with no BARs set up..
>>     
>
> yep, we actually have to set up the BARs even if it is not enabled in
> the tree. We can't leave the OS in a situtation where it can't use the
> device.
>
>   
What does pci xx.x off end do then?






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