Re: [PATCH 10/17] driver core: Expose device trust authorization through sysfs

[Jason Gunthorpe]

On Thu, Nov 05, 2026 at 01:59:20PM +0000, Robin Murphy wrote:
> Yup, and that's true even in the PCI TDISP case - there's a major amount of
> "communication" and "configuration" involved in that. The principle which
> should (hopefully) generalise is that a bus/host controller driver can
> always interrogate its child device to perform whatever attestation and
> general configuration is appropriate, but we won't hand off any _control_ of
> that device to a specific device driver (nor enable potentially-impactful
> bus-level features like DMA, interrupts, etc. if relevant) without the
> requisite agreement between the bus code and the user.

+1, I think that captures the idea very well.

Jason