19 union asce {  union
258 	unsigned long asce   : 64; /* Address-Space-Control Element */  member
379 static int ar_translation(struct kvm_vcpu *vcpu, union asce *asce, u8 ar,  in ar_translation()  argument
397 		asce->val = vcpu->arch.sie_block->gcr[1];  in ar_translation()
400 		asce->val = vcpu->arch.sie_block->gcr[7];  in ar_translation()
464 	asce->val = aste.asce;  in ar_translation()
554 static int get_vcpu_asce(struct kvm_vcpu *vcpu, union asce *asce,  in get_vcpu_asce()  argument
561 		asce->val = 0;  in get_vcpu_asce()
562 		asce->r = 1;  in get_vcpu_asce()
571 		asce->val = vcpu->arch.sie_block->gcr[1];  in get_vcpu_asce()
574 		asce->val = vcpu->arch.sie_block->gcr[7];  in get_vcpu_asce()
577 		asce->val = vcpu->arch.sie_block->gcr[13];  in get_vcpu_asce()
580 		rc = ar_translation(vcpu, asce, ar, mode);  in get_vcpu_asce()
615 				     unsigned long *gpa, const union asce asce,  in guest_translate()  argument
631 	if (asce.r)  in guest_translate()
633 	ptr = asce.origin * PAGE_SIZE;  in guest_translate()
634 	switch (asce.dt) {  in guest_translate()
636 		if (vaddr.rfx01 > asce.tl)  in guest_translate()
643 		if (vaddr.rsx01 > asce.tl)  in guest_translate()
650 		if (vaddr.rtx01 > asce.tl)  in guest_translate()
657 		if (vaddr.sx01 > asce.tl)  in guest_translate()
662 	switch (asce.dt) {  in guest_translate()
710 		if (rtte.cr && asce.p && edat2)  in guest_translate()
738 		if (ste.cs && asce.p)  in guest_translate()
785 					  const union asce asce)  in low_address_protection_enabled()  argument
792 	if (psw_bits(*psw).dat && asce.p)  in low_address_protection_enabled()
799 			    const union asce asce, enum gacc_mode mode)  in guest_page_range()  argument
805 	lap_enabled = low_address_protection_enabled(vcpu, asce);  in guest_page_range()
813 			rc = guest_translate(vcpu, ga, pages, asce, mode, &prot);  in guest_page_range()
838 	union asce asce;  in access_guest()  local
844 	rc = get_vcpu_asce(vcpu, &asce, ga, ar, mode);  in access_guest()
853 	need_ipte_lock = psw_bits(*psw).dat && !asce.r;  in access_guest()
856 	rc = guest_page_range(vcpu, ga, ar, pages, nr_pages, asce, mode);  in access_guest()
909 	union asce asce;  in guest_translate_address()  local
913 	rc = get_vcpu_asce(vcpu, &asce, gva, ar, mode);  in guest_translate_address()
916 	if (is_low_address(gva) && low_address_protection_enabled(vcpu, asce)) {  in guest_translate_address()
922 	if (psw_bits(*psw).dat && !asce.r) {	/* Use DAT? */  in guest_translate_address()
923 		rc = guest_translate(vcpu, gva, gpa, asce, mode, &prot);  in guest_translate_address()
989 	union asce asce;  in kvm_s390_shadow_tables()  local
998 	asce.val = sg->orig_asce;  in kvm_s390_shadow_tables()
999 	ptr = asce.origin * PAGE_SIZE;  in kvm_s390_shadow_tables()
1000 	if (asce.r) {  in kvm_s390_shadow_tables()
1003 		asce.dt = ASCE_TYPE_REGION1;  in kvm_s390_shadow_tables()
1005 	switch (asce.dt) {  in kvm_s390_shadow_tables()
1007 		if (vaddr.rfx01 > asce.tl && !*fake)  in kvm_s390_shadow_tables()
1013 		if (vaddr.rsx01 > asce.tl)  in kvm_s390_shadow_tables()
1019 		if (vaddr.rtx01 > asce.tl)  in kvm_s390_shadow_tables()
1025 		if (vaddr.sx01 > asce.tl)  in kvm_s390_shadow_tables()
1030 	switch (asce.dt) {  in kvm_s390_shadow_tables()
1102 		if (rtte.cr && asce.p && sg->edat_level >= 2)  in kvm_s390_shadow_tables()
1139 		if (ste.cs && asce.p)  in kvm_s390_shadow_tables()