Hi Yang, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on kvm/linux-next] [also build test WARNING on next-20200320] [cannot apply to vhost/linux-next tip/auto-latest linux/master linus/master v5.6-rc6] [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/20200320-155517 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next reproduce: # apt-get install sparse # sparse version: v0.6.1-181-g83789bbc-dirty make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) arch/x86/kvm/x86.c:98:46: sparse: sparse: undefined identifier 'X86_CR4_CET' >> arch/x86/kvm/x86.c:98:46: sparse: sparse: cast from unknown type arch/x86/kvm/x86.c:809:60: sparse: sparse: undefined identifier 'X86_CR4_CET' arch/x86/kvm/x86.c:940:29: sparse: sparse: undefined identifier 'X86_CR4_CET' arch/x86/kvm/x86.c:940:29: sparse: sparse: cast from unknown type arch/x86/kvm/x86.c:956:19: sparse: sparse: undefined identifier 'X86_CR4_CET' arch/x86/kvm/x86.c:956:19: sparse: sparse: cast from unknown type arch/x86/kvm/x86.c:1233:23: sparse: sparse: undefined identifier 'MSR_IA32_U_CET' arch/x86/kvm/x86.c:1233:39: sparse: sparse: undefined identifier 'MSR_IA32_S_CET' arch/x86/kvm/x86.c:1234:9: sparse: sparse: undefined identifier 'MSR_IA32_PL0_SSP' arch/x86/kvm/x86.c:1234:27: sparse: sparse: undefined identifier 'MSR_IA32_PL1_SSP' arch/x86/kvm/x86.c:1234:45: sparse: sparse: undefined identifier 'MSR_IA32_PL2_SSP' arch/x86/kvm/x86.c:1235:9: sparse: sparse: undefined identifier 'MSR_IA32_PL3_SSP' arch/x86/kvm/x86.c:1235:27: sparse: sparse: undefined identifier 'MSR_IA32_INT_SSP_TAB' arch/x86/kvm/x86.c:1512:14: sparse: sparse: undefined identifier 'MSR_IA32_PL0_SSP' arch/x86/kvm/x86.c:1512:35: sparse: sparse: undefined identifier 'MSR_IA32_PL3_SSP' arch/x86/kvm/x86.c:1513:14: sparse: sparse: undefined identifier 'MSR_IA32_U_CET' arch/x86/kvm/x86.c:1514:14: sparse: sparse: undefined identifier 'MSR_IA32_S_CET' arch/x86/kvm/x86.c:1515:14: sparse: sparse: undefined identifier 'MSR_IA32_INT_SSP_TAB' arch/x86/kvm/x86.c:1512:14: sparse: sparse: incompatible types for 'case' statement arch/x86/kvm/x86.c:1512:35: sparse: sparse: incompatible types for 'case' statement arch/x86/kvm/x86.c:1513:14: sparse: sparse: incompatible types for 'case' statement arch/x86/kvm/x86.c:1514:14: sparse: sparse: incompatible types for 'case' statement arch/x86/kvm/x86.c:1515:14: sparse: sparse: incompatible types for 'case' statement arch/x86/kvm/x86.c:2646:38: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] <asn:1> * @@ got const [noderef] <asn:1> * @@ arch/x86/kvm/x86.c:2646:38: sparse: expected void const [noderef] <asn:1> * arch/x86/kvm/x86.c:2646:38: sparse: got unsigned char [usertype] * arch/x86/kvm/x86.c:3267:25: sparse: sparse: undefined identifier 'MSR_IA32_U_CET' arch/x86/kvm/x86.c:7549:15: sparse: sparse: incompatible types in comparison expression (different address spaces): arch/x86/kvm/x86.c:7549:15: sparse: struct kvm_apic_map [noderef] <asn:4> * arch/x86/kvm/x86.c:7549:15: sparse: struct kvm_apic_map * arch/x86/kvm/x86.c:9678:44: sparse: sparse: undefined identifier 'XFEATURE_MASK_CET_USER' arch/x86/kvm/x86.c:9678:44: sparse: sparse: undefined identifier 'XFEATURE_MASK_CET_KERNEL' arch/x86/kvm/x86.c:9912:16: sparse: sparse: incompatible types in comparison expression (different address spaces): arch/x86/kvm/x86.c:9912:16: sparse: struct kvm_apic_map [noderef] <asn:4> * arch/x86/kvm/x86.c:9912:16: sparse: struct kvm_apic_map * arch/x86/kvm/x86.c:9913:15: sparse: sparse: incompatible types in comparison expression (different address spaces): arch/x86/kvm/x86.c:9913:15: sparse: struct kvm_pmu_event_filter [noderef] <asn:4> * arch/x86/kvm/x86.c:9913:15: sparse: struct kvm_pmu_event_filter * arch/x86/kvm/x86.c:1512:14: sparse: sparse: Expected constant expression in case statement arch/x86/kvm/x86.c:1512:35: sparse: sparse: Expected constant expression in case statement arch/x86/kvm/x86.c:1513:14: sparse: sparse: Expected constant expression in case statement arch/x86/kvm/x86.c:1514:14: sparse: sparse: Expected constant expression in case statement arch/x86/kvm/x86.c:1515:14: sparse: sparse: Expected constant expression in case statement -- arch/x86/kvm/emulate.c:5495:21: sparse: sparse: arithmetics on pointers to functions arch/x86/kvm/emulate.c:4206:17: sparse: sparse: undefined identifier 'X86_CR4_CET' >> arch/x86/kvm/emulate.c:4206:17: sparse: sparse: cast from unknown type vim +98 arch/x86/kvm/x86.c 313a3dc75da206 drivers/kvm/x86.c Carsten Otte 2007-10-11 97 b11306b53b2540 arch/x86/kvm/x86.c Sean Christopherson 2019-12-10 @98 static u64 __read_mostly cr4_reserved_bits = CR4_RESERVED_BITS; b11306b53b2540 arch/x86/kvm/x86.c Sean Christopherson 2019-12-10 99 :::::: The code at line 98 was first introduced by commit :::::: b11306b53b2540c6ba068c4deddb6a17d9f8d95b KVM: x86: Don't let userspace set host-reserved cr4 bits :::::: TO: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> :::::: CC: Paolo Bonzini <pbonzini@xxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
