kvm_hyperv_exit 531 arch/x86/include/asm/kvm_host.h struct kvm_hyperv_exit exit; kvm_hyperv_exit 396 include/uapi/linux/kvm.h struct kvm_hyperv_exit hyperv; kvm_hyperv_exit 396 tools/include/uapi/linux/kvm.h struct kvm_hyperv_exit hyperv;