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

From: Jason Gunthorpe

Date: Thu Oct 15 2026 - 12:41:28 EST


On Thu, Oct 15, 2026 at 03:25:49PM +0100, Ryan Roberts wrote:
> From: Jean-Philippe Brucker <jpb@xxxxxxxxxx>
>
> Implement an interface to assign CLA devices to KVM guests. To creates a
> CLA instance:
>
> uuid=$(uuidgen)
> echo $uuid > /sys/class/mdev_bus/<pdev>/mdev_supported_types/arm-cla-pl1/create
> cla_cpu=$(< /sys/bus/mdev/devices/$uuid/cpu)

I think I said this last time, please don't use vfio mdev for
anything. There is nothing mediated about this.

Jason