[Skiboot] [PATCH 1/2] pci: Add a framework for quirks

Benjamin Herrenschmidt benh at kernel.crashing.org
Mon Feb 20 10:12:20 AEDT 2017

On Mon, 2017-02-20 at 10:04 +1100, Gavin Shan wrote:
> Also, the memory BAR of one specific PCI device isn't populted. It
> means we can't fixup the registers in memory BAR and have to do that
> in kernel. With this patch applied, we're going to have some fixups
> in skiboot and others in kernel. It's prone to be out of sychronization
> between skiboot and kernel. So it's possible to do the quirks in kernel
> only?

No. The whole point of that specific quirk is that the kernel cannot
access the relevant information. It's not obtained via the device BARs,
but via some backdoor into the BMC address space that we want to close.


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