Re: [[RFC PATCH v1] 1/1] PCI: Add pci=nobbn to ignore ACPI _BBN method to override host bridge bus window

From: Thomas Gleixner
Date: Thu Jan 16 2020 - 17:13:21 EST


Nicholas,

Nicholas Johnson <nicholas.johnson-opensource@xxxxxxxxxxxxxx> writes:

> Add pci=nobbn kernel parameter.
>
> Override the host bridge bus resource to [bus 00-ff] when specified.

Fine, but you completely fail to explain why this is useful and why
someone would utilize this command line parameter.

Thanks,

tglx