Re: [RFC PATCH] PCI: Add "pci=reassign_all_bus" boot parameter

[Maciej W. Rozycki]

On Mon, 17 Jan 2022, Yao Hongbo wrote:

> > Why can't we make Linux smart enough to fix this by itself, without
> > forcing the user to boot with "pci=reassign_all_bus"?
> 
>    You're right, it's better for us to make pci enumeration more smart.
> 
>    But i think it's better to provide an additional option for users on ACPI systems,
> 
> which can quickly distingguish the issues between the BIOS and the OS.

 Even if so, x86 has had `pci=assign-busses' for decades already (i.e. 
from Linux 2.4.6), so why not reuse it for whatever your ACPI platform is?

  Maciej