Messages in this thread | | | Date | Fri, 16 Apr 2021 14:54:38 -0300 | From | Jason Gunthorpe <> | Subject | Re: [PATCH V4 05/18] iommu/ioasid: Redefine IOASID set and allocation APIs |
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On Fri, Apr 16, 2021 at 10:23:32AM -0700, Jacob Pan wrote:
> Perhaps similar to cgroup v1 vs v2, it took a long time and with known > limitations in v1.
cgroup v2 is still having transition problems, if anything it is a cautionary tale to think really hard about uAPI because transitioning can be really hard.
It might be very wise to make /dev/ioasid and /dev/vfio ioctl compatible in some way so existing software has a smoother upgrade path.
For instance by defining a default IOASID
Jason
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