[RFC PATCH] iommu/arm-smmu-v3: Allow nested attach for PCI bridges without vDEVICE

[Jason Gunthorpe]

On Fri, Aug 14, 2026 at 02:15:45PM +0000, Pranjal Shrivastava wrote:

> Also, regarding RID aliasing: while it's true the host bridge doesn't
> need a vDEVICE for its own host-consumed DMAs (like AER/PME), are we

RID aliasing shouldn't exist in any modern system. Unfortunately Linux
gets some things wrong in its ACS processing :\

Jason