On Mon, Sep 23, 2019 at 08:55:52AM +0200, Eric Auger wrote: > Currently, when a notifier is attempted to be registered and its > flags are not supported (especially the MAP one) by the IOMMU MR, > we generally abruptly exit in the IOMMU code. The failure could be > handled more nicely in the caller and especially in the VFIO code. > > So let's allow memory_region_register_iommu_notifier() to fail as > well as notify_flag_changed() callback. > > All sites implementing the callback are updated. This patch does > not yet remove the exit(1) in the amd_iommu code. > > in SMMUv3 we turn the warning message into an error message saying > that the assigned device would not work properly. > > Signed-off-by: Eric Auger <eric.au...@redhat.com>
Reviewed-by: Peter Xu <pet...@redhat.com> -- Peter Xu
