hmm_migrate_sys_to_dev
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd1, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd1, buffer, 3);
ret = hmm_migrate_sys_to_dev(self->fd1, buffer, 4);
ret = hmm_migrate_sys_to_dev(self->fd0, buffer, 1);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd0, buffer, 1);
ret = hmm_migrate_sys_to_dev(self->fd1, buffer, 1);
ret = hmm_migrate_sys_to_dev(self->fd1, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(fd, buffer, npages);
ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);