PROG_REQUEST
atomic_or(PROG_REQUEST, &vcpu->arch.sie_block->prog20);
(PROG_BLOCK_SIE | PROG_REQUEST);
atomic_andnot(PROG_REQUEST, &vcpu->arch.sie_block->prog20);
atomic_andnot(PROG_REQUEST, &vsie_page->scb_s.prog20);
return !(atomic_read(&vsie_page->scb_s.prog20) & PROG_REQUEST);
atomic_or(PROG_REQUEST, &vsie_page->scb_s.prog20);