[PATCH 1/3] x86/quirks: Scan all busses for early PCI quirks

Guilherme Piccoli gpiccoli at canonical.com
Mon Nov 16 16:49:08 EST 2020

On Mon, Nov 16, 2020 at 6:45 PM Eric W. Biederman <ebiederm at xmission.com> wrote:
> The way to do that would be to collect the set of pci devices when the
> kexec on panic kernel is loaded, not during crash_kexec.  If someone
> performs a device hotplug they would need to reload the kexec on panic
> kernel.
> I am not necessarily endorsing that just pointing out how it can be
> done.
> Eric

Thanks Eric, I agree! I think if we use something like PKRAM (a more
dynamic approach) we could have the PCI hotplug path updating the data
to-be-passed to the crash kernel, so the crash kernel doesn't even
need to be loaded again.

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