Re: [RFC PATCH v2 15/15] misc/arm-cla: Add vfio-mdev user interface

[Jean-Philippe Brucker]

On Thu, 15 Oct 2026 at 17:41, Jason Gunthorpe <jgg@xxxxxxxxxx> wrote:
> I think I said this last time, please don't use vfio mdev for
> anything. There is nothing mediated about this.

We don't multiplex a device between guests, but the host driver must
control part of the device registers while the remainder is assigned to
a guest. The host configures accelerator access, stage-2 translation,
handles CPUHP and context save/restore. So we can't bind the device to
vfio-platform.

Thanks,
Jean