KVM_HVA_ERR_RO_BAD 1439 virt/kvm/kvm_main.c return KVM_HVA_ERR_RO_BAD; KVM_HVA_ERR_RO_BAD 1711 virt/kvm/kvm_main.c if (addr == KVM_HVA_ERR_RO_BAD) {