Re: [PATCH RFC] staging: Add driver to communicate with the T2 Security Chip

[andriy.shevchenko@xxxxxxxxxxxxxxx]

On Mon, Mar 10, 2025 at 01:49:13PM +0000, Robin Murphy wrote:
> On 2025-03-09 8:40 am, Aditya Garg wrote:
> > From: Paul Pawlowski <paul@xxxxxxxx>
> > 
> > This patch adds a driver named apple-bce, to add support for the T2
> > Security Chip found on certain Macs.
> > 
> > The driver has 3 main components:
> > 
> > BCE (Buffer Copy Engine) - this is what the files in the root directory
> > are for. This estabilishes a basic communication channel with the T2.
> > VHCI and Audio both require this component.
> > 
> > VHCI - this is a virtual USB host controller; keyboard, mouse and
> > other system components are provided by this component (other
> > drivers use this host controller to provide more functionality).
> > 
> > Audio - a driver for the T2 audio interface, currently only audio
> > output is supported.
> > 
> > Currently, suspend and resume for VHCI is broken after a firmware
> > update in iBridge since macOS Sonoma.

> I'm slightly puzzled why this was sent to the IOMMU maintainers when it
> doesn't touch any IOMMU code, nor even contain any reference to the IOMMU
> API at all...

People like to put a random people to a random contributions :-)

Aditya, you can utilise my "smart" script [1] to send the series
to more-or-less relevant people (but definitely to the right ones
± potentially interested, it has a heuristics inside).

[1]: https://github.com/andy-shev/home-bin-tools/blob/master/ge2maintainer.sh

-- 
With Best Regards,
Andy Shevchenko