450         error_setg(errp, "Nested-HV only supported on POWER9 and later");  in cap_nested_kvm_hv_apply()
451         error_append_hint(errp, "Try appending -machine cap-nested-hv=off\n");  in cap_nested_kvm_hv_apply()
458             error_setg(errp, "Nested-HV only supported on POWER9 and later");  in cap_nested_kvm_hv_apply()
466                        "KVM implementation does not support Nested-HV");  in cap_nested_kvm_hv_apply()
468                               "Try appending -machine cap-nested-hv=off\n");  in cap_nested_kvm_hv_apply()
470                 error_setg(errp, "Error enabling cap-nested-hv with KVM");  in cap_nested_kvm_hv_apply()
472                                   "Try appending -machine cap-nested-hv=off\n");  in cap_nested_kvm_hv_apply()
479          * Nested-HV vCPU env state to L2, so SMT-shared SPR updates, for  in cap_nested_kvm_hv_apply()
484             error_setg(errp, "TCG does not support nested-HV with SMT");  in cap_nested_kvm_hv_apply()
485             error_append_hint(errp, "Try appending -machine cap-nested-hv=off "  in cap_nested_kvm_hv_apply()
490             error_setg(errp, "Nested-HV APIs are mutually exclusive");  in cap_nested_kvm_hv_apply()
491             error_append_hint(errp, "Please use either cap-nested-hv or "  in cap_nested_kvm_hv_apply()
492                                     "cap-nested-papr to proceed.\n");  in cap_nested_kvm_hv_apply()
495             spapr->nested.api = NESTED_API_KVM_HV;  in cap_nested_kvm_hv_apply()
514             error_setg(errp, "Nested-PAPR only supported on POWER9 and later");  in cap_nested_papr_apply()
516                               "Try appending -machine cap-nested-papr=off\n");  in cap_nested_papr_apply()
521             error_setg(errp, "Nested-HV APIs are mutually exclusive");  in cap_nested_papr_apply()
522             error_append_hint(errp, "Please use either cap-nested-hv or "  in cap_nested_papr_apply()
523                                     "cap-nested-papr to proceed.\n");  in cap_nested_papr_apply()
526             spapr->nested.api = NESTED_API_PAPR;  in cap_nested_papr_apply()
529         error_setg(errp, "KVM implementation does not support Nested-PAPR");  in cap_nested_papr_apply()
531                           "Try appending -machine cap-nested-papr=off\n");  in cap_nested_papr_apply()
800         .name = "nested-hv",
801         .description = "Allow Nested KVM-HV",
809         .name = "nested-papr",
810         .description = "Allow Nested HV (PAPR API)",