Messages in this thread | | | Date | Fri, 28 Jul 2023 09:28:03 -0300 | From | Jason Gunthorpe <> | Subject | Re: [PATCH v8 2/4] iommufd: Add iommufd_access_replace() API |
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On Fri, Jul 28, 2023 at 06:20:56AM +0000, Tian, Kevin wrote:
> But this does imply inconsistent behavior between success and failure. > Not sure whether it's worth a fix e.g. introducing another notifier for > mdev drivers to re-pin...
After unmap drivers should re-establish their DMA mappings when they are next required. It is a mdev driver bug if they don't do this..
Jason
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