Messages in this thread | | | Date | Tue, 6 Jul 2010 16:58:14 -0700 | Subject | Re: [RFC PATCH 1/1] PCI: skip release and reallocation of io port resources | From | Linus Torvalds <> |
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On Tue, Jul 6, 2010 at 4:13 PM, Yinghai Lu <yinghai@kernel.org> wrote: > > So you want to use pci=override_bios to reallocate all bios assigned resource include > peer root buses resources and pci bridge resource and pci devices BAR?
In a perfect world, we'd never need this at all, but sicne that's not an option, the second-best alternative might be something like the following:
pci=override=off # default pci=override=conflict # override only on conflicts pci=override=<device> # clear BIOS allocations for <device> (and any children, if it's a bus)
and possibly
pci=override=always # ignore BIOS allocations entirely
although I suspect that last one isn't really usable, since at a minimum you'd have to honor things that ACPI ends up depending on. Which is pretty much always going to happen for _some_ device.
What I _don't_ think is a good idea is to call it "try=1" and "try=2" which is entirely uncomprehensible. Also, I do think we have to default to "override=off", since even the "only for conflicts" obviously triggers problems.
Linus
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