Re: [PATCH v6 0/8] iommufd: Destroy vdevice on device unbind

[Jason Gunthorpe]

On Wed, Jul 16, 2025 at 03:03:41PM +0800, Xu Yilun wrote:
> It is to solve the lifecycle issue that vdevice may outlive idevice. It
> is a prerequisite for TIO, to ensure extra secure configurations (e.g.
> TSM Bind/Unbind) against vdevice could be rolled back on idevice unbind,
> so that VFIO could still work on the physical device without surprise.

> Xu Yilun (8):
>   iommufd/viommu: Roll back to use iommufd_object_alloc() for vdevice
>   iommufd: Add iommufd_object_tombstone_user() helper
>   iommufd: Add a pre_destroy() op for objects
>   iommufd: Destroy vdevice on idevice destroy
>   iommufd/vdevice: Remove struct device reference from struct vdevice
>   iommufd/selftest: Explicitly skip tests for inapplicable variant
>   iommufd/selftest: Add coverage for vdevice tombstone
>   iommufd: Rename some shortterm-related identifiers

Applied to for-next, thanks

Jason