On 30/04/2018 14:24, Peter Maydell wrote: > - /* Set this up to provide customized IOMMU replay function */ > + /* Set this up to provide customized IOMMU replay function. > + * Optional method. > + */ > void (*replay)(IOMMUMemoryRegion *iommu, IOMMUNotifier *notifier);
replay is needed if you want to support IOMMU notifiers. After memory_region_register_iommu_notifier you're only notified about future changes to the mappings; memory_region_iommu_replay calls the replay method so that the IOMMUNotifier is called for each existing mapping. Paolo