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-20200319] [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:809:60: sparse: sparse: undefined identifier 'X86_CR4_CET' 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 vim +/case +1512 arch/x86/kvm/x86.c 1475 1476 /* 1477 * Write @data into the MSR specified by @index. Select MSR specific fault 1478 * checks are bypassed if @host_initiated is %true. 1479 * Returns 0 on success, non-0 otherwise. 1480 * Assumes vcpu_load() was already called. 1481 */ 1482 static int __kvm_set_msr(struct kvm_vcpu *vcpu, u32 index, u64 data, 1483 bool host_initiated) 1484 { 1485 struct msr_data msr; 1486 1487 switch (index) { 1488 case MSR_FS_BASE: 1489 case MSR_GS_BASE: 1490 case MSR_KERNEL_GS_BASE: 1491 case MSR_CSTAR: 1492 case MSR_LSTAR: 1493 if (is_noncanonical_address(data, vcpu)) 1494 return 1; 1495 break; 1496 case MSR_IA32_SYSENTER_EIP: 1497 case MSR_IA32_SYSENTER_ESP: 1498 /* 1499 * IA32_SYSENTER_ESP and IA32_SYSENTER_EIP cause #GP if 1500 * non-canonical address is written on Intel but not on 1501 * AMD (which ignores the top 32-bits, because it does 1502 * not implement 64-bit SYSENTER). 1503 * 1504 * 64-bit code should hence be able to write a non-canonical 1505 * value on AMD. Making the address canonical ensures that 1506 * vmentry does not fail on Intel after writing a non-canonical 1507 * value, and that something deterministic happens if the guest 1508 * invokes 64-bit SYSENTER. 1509 */ 1510 data = get_canonical(data, vcpu_virt_addr_bits(vcpu)); 1511 break; > 1512 case MSR_IA32_PL0_SSP ... MSR_IA32_PL3_SSP: 1513 case MSR_IA32_U_CET: 1514 case MSR_IA32_S_CET: 1515 case MSR_IA32_INT_SSP_TAB: 1516 if (is_noncanonical_address(data, vcpu)) 1517 return 1; 1518 } 1519 1520 msr.data = data; 1521 msr.index = index; 1522 msr.host_initiated = host_initiated; 1523 1524 return kvm_x86_ops->set_msr(vcpu, &msr); 1525 } 1526 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
