On Mon, Aug 16, 2021 at 02:53:18PM -0500, Sierra Guiza, Alejandro (Alex) wrote: > For above’s condition equal to connected_to_cpu , we’re explicitly > migrating from > device memory to system memory with device generic type. In this type, > device PTEs are > present in CPU page table. > > During migrate_vma_collect_pmd walk op at migrate_vma_setup call, there’s > a condition > for present pte that require migrate->flags be set for > MIGRATE_VMA_SELECT_SYSTEM. > Otherwise, the migration for this entry will be ignored. I think we might need a new SELECT flag here for IOMEM.
