15 union asce {  union
254 	unsigned long asce   : 64; /* Address-Space-Control Element */  member
359 static int ar_translation(struct kvm_vcpu *vcpu, union asce *asce, ar_t ar,  in ar_translation()  argument
377 		asce->val = vcpu->arch.sie_block->gcr[1];  in ar_translation()
380 		asce->val = vcpu->arch.sie_block->gcr[7];  in ar_translation()
444 	asce->val = aste.asce;  in ar_translation()
463 static int get_vcpu_asce(struct kvm_vcpu *vcpu, union asce *asce,  in get_vcpu_asce()  argument
477 		asce->val = 0;  in get_vcpu_asce()
478 		asce->r = 1;  in get_vcpu_asce()
484 		asce->val = vcpu->arch.sie_block->gcr[1];  in get_vcpu_asce()
487 		asce->val = vcpu->arch.sie_block->gcr[7];  in get_vcpu_asce()
490 		asce->val = vcpu->arch.sie_block->gcr[13];  in get_vcpu_asce()
493 		rc = ar_translation(vcpu, asce, ar, write);  in get_vcpu_asce()
540 				     unsigned long *gpa, const union asce asce,  in guest_translate()  argument
554 	if (asce.r)  in guest_translate()
556 	ptr = asce.origin * 4096;  in guest_translate()
557 	switch (asce.dt) {  in guest_translate()
559 		if (vaddr.rfx01 > asce.tl)  in guest_translate()
566 		if (vaddr.rsx01 > asce.tl)  in guest_translate()
573 		if (vaddr.rtx01 > asce.tl)  in guest_translate()
580 		if (vaddr.sx01 > asce.tl)  in guest_translate()
585 	switch (asce.dt) {  in guest_translate()
633 		if (rtte.cr && asce.p && edat2)  in guest_translate()
660 		if (ste.cs && asce.p)  in guest_translate()
701 					  const union asce asce)  in low_address_protection_enabled()  argument
708 	if (psw_bits(*psw).t && asce.p)  in low_address_protection_enabled()
715 			    const union asce asce, int write)  in guest_page_range()  argument
723 	lap_enabled = low_address_protection_enabled(vcpu, asce);  in guest_page_range()
733 			rc = guest_translate(vcpu, ga, pages, asce, write);  in guest_page_range()
762 	union asce asce;  in access_guest()  local
767 	rc = get_vcpu_asce(vcpu, &asce, ar, write);  in access_guest()
776 	need_ipte_lock = psw_bits(*psw).t && !asce.r;  in access_guest()
779 	rc = guest_page_range(vcpu, ga, pages, nr_pages, asce, write);  in access_guest()
833 	union asce asce;  in guest_translate_address()  local
838 	rc = get_vcpu_asce(vcpu, &asce, ar, write);  in guest_translate_address()
842 	if (is_low_address(gva) && low_address_protection_enabled(vcpu, asce)) {  in guest_translate_address()
849 	if (psw_bits(*psw).t && !asce.r) {	/* Use DAT? */  in guest_translate_address()
850 		rc = guest_translate(vcpu, gva, gpa, asce, write);  in guest_translate_address()