Hi Yang, Thank you for the patch! Yet something to improve: [auto build test ERROR on kvm/linux-next] [also build test ERROR on next-20200331] [cannot apply to vhost/linux-next tip/auto-latest linus/master linux/master v5.6] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Yang-Weijiang/Introduce-support-for-guest-CET-feature/20200327-040801 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next config: i386-allyesconfig (attached as .config) compiler: gcc-7 (Debian 7.4.0-6) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): >> arch/x86/kvm/vmx/vmx.c:47:10: fatal error: asm/cet.h: No such file or directory #include ^~~~~~~~~~~ compilation terminated. vim +47 arch/x86/kvm/vmx/vmx.c 30 31 #include 32 #include 33 #include 34 #include 35 #include 36 #include 37 #include 38 #include 39 #include 40 #include 41 #include 42 #include 43 #include 44 #include 45 #include 46 #include > 47 #include 48 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org