hvevfd 5179 arch/x86/kvm/x86.c struct kvm_hyperv_eventfd hvevfd; hvevfd 5182 arch/x86/kvm/x86.c if (copy_from_user(&hvevfd, argp, sizeof(hvevfd))) hvevfd 5184 arch/x86/kvm/x86.c r = kvm_vm_ioctl_hv_eventfd(kvm, &hvevfd);