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

[Aditya Garg]

> On 10 Mar 2025, at 7:25 PM, andriy.shevchenko@xxxxxxxxxxxxxxx wrote:
> 
> 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).

Thanks a lot for this. I used a bit AI to get maintainers for this, looks like IOMMU got added. Sorry for that :)
> 
> [1]: https://github.com/andy-shev/home-bin-tools/blob/master/ge2maintainer.sh
> 
> --
> With Best Regards,
> Andy Shevchenko
> 
>