On Thu, Dec 15, 2022 at 01:56:58PM -0800, Steve Sistare wrote:
> Disable the VFIO_UPDATE_VADDR capability if mediated devices are present.
> Their kernel threads could be blocked indefinitely by a misbehaving
> userland while trying to pin/unpin pages while vaddrs are being updated.
>
> Do not allow groups to be added to the container while vaddr's are invalid,
> so we never need to block user threads from pinning, and can delete the
> vaddr-waiting code in a subsequent patch.
>
> Fixes: c3cbab24db38 ("vfio/type1: implement interfaces to update vaddr")
>
> Signed-off-by: Steve Sistare <steven.sistare@xxxxxxxxxx>
No blank line here
Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
Jason
