Re: [PATCH 1/2] PCI: Allow drivers to request exclusive config regions

Jonathan Cameron
2022-08-24T09:54:28Z

>
> > What are you trying to protect yourself from, bogus bug reports by
> > people doing bad things and then blaming you? That's easy to handle,
> > just ignore them :)
>
> I asked Ira to push on this to protect the kernel from people like me,
> :). So, there is this massively complicated specification for device
> attestation and link integrity / encryption protection (SPDM and IDE)
> that has applications to both PCIe and CXL. I do not see a path in the
> near term to land that support in the kernel.
>
> DOE being user accessible though, lends itself to pure userspace
> implementations of SPDM and IDE infrastructure. I want to develop that
> infrastructure, but also have the kernel reserve the space / right to
> obviate that implementation with kernel control of the DOE mailbox, SPDM
> sessions, and IDE keys in the future.
Can't resist...

If anyone is at Plumbers (in person or virtually) the will be a BoF on
SPDM etc. Not scheduled yet...

https://lpc.events/event/16/contributions/1304/

Come join the Kernel vs Partly Kernel vs fully Userspace discussions.

Thanks,

Jonathan