On Fri, Aug 22, 2025 at 11:50:58AM -0700, Nicolin Chen wrote: > It feels like we need a no-fail re-attach operation, or at least an > unlikely-to-fail one. I recall years ago we tried a can_attach op > to test the compatibility but it didn't get merged. Maybe we'd need > it so that a concurrent attach can test compatibility, allowing the > re-attach in iommu_dev_reset_done() to more likely succeed. This is probably the cleanest option to split these things Jason