tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 6a5b2f9a14178b13fe5efc52ba6575f5294c1270 commit: 2a3cfce9a18a4b772f01830cbc95fe00125431d8 [3081/3081] KVM: x86: Make Hyper-V emulation optional config: x86_64-randconfig-013-20251101 (https://download.01.org/0day-ci/archive/20251101/202511011104.PcEVHImG-lkp@i...) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251101/202511011104.PcEVHImG-lkp@i...) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202511011104.PcEVHImG-lkp@intel.com/ All errors (new ones prefixed by >>):

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arch/x86/kvm/svm/nested.c:485:6: error: call to undeclared function 'to_hv_vcpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 485 | if (to_hv_vcpu(vcpu) && npt_enabled) | ^ 1 error generated. -- arch/x86/kvm/x86.c:12528:8: error: call to undeclared function 'to_kvm_hv'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 12528 | kfree(to_kvm_hv(kvm)->hv_pa_pg); | ^ arch/x86/kvm/x86.c:12528:24: error: member reference type 'int' is not a pointer 12528 | kfree(to_kvm_hv(kvm)->hv_pa_pg); | ~~~~~~~~~~~~~~ ^ 2 errors generated. -- In file included from arch/x86/kvm/kvm-asm-offsets.c:10: arch/x86/kvm/vmx/vmx.h:757:20: error: no member named 'hyperv_enabled' in 'struct kvm_vcpu_arch' 757 | return vcpu->arch.hyperv_enabled && | ~~~~~~~~~~ ^ 1 error generated. -- arch/x86/kvm/lapic.c:1479:6: error: call to undeclared function 'to_hv_vcpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1479 | if (to_hv_vcpu(apic->vcpu) && | ^ arch/x86/kvm/lapic.c:1480:23: error: call to undeclared function 'to_hv_synic'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 1480 | test_bit(vector, to_hv_synic(apic->vcpu)->vec_bitmap)) | ^ arch/x86/kvm/lapic.c:1480:48: error: member reference type 'int' is not a pointer 1480 | test_bit(vector, to_hv_synic(apic->vcpu)->vec_bitmap)) | ~~~~~~~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:50:37: note: expanded from macro 'bitop' 50 | __builtin_constant_p((uintptr_t)(addr) != (uintptr_t)NULL) && \ | ^~~~ arch/x86/kvm/lapic.c:1480:48: error: member reference type 'int' is not a pointer 1480 | test_bit(vector, to_hv_synic(apic->vcpu)->vec_bitmap)) | ~~~~~~~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:51:16: note: expanded from macro 'bitop' 51 | (uintptr_t)(addr) != (uintptr_t)NULL && \ | ^~~~ arch/x86/kvm/lapic.c:1480:48: error: member reference type 'int' is not a pointer 1480 | test_bit(vector, to_hv_synic(apic->vcpu)->vec_bitmap)) | ~~~~~~~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:52:50: note: expanded from macro 'bitop' 52 | __builtin_constant_p(*(const unsigned long *)(addr))) ? \ | ^~~~ arch/x86/kvm/lapic.c:1480:48: error: member reference type 'int' is not a pointer 1480 | test_bit(vector, to_hv_synic(apic->vcpu)->vec_bitmap)) | ~~~~~~~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:53:17: note: expanded from macro 'bitop' 53 | const##op(nr, addr) : op(nr, addr)) | ^~~~ arch/x86/kvm/lapic.c:1480:48: error: member reference type 'int' is not a pointer 1480 | test_bit(vector, to_hv_synic(apic->vcpu)->vec_bitmap)) | ~~~~~~~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:53:32: note: expanded from macro 'bitop' 53 | const##op(nr, addr) : op(nr, addr)) | ^~~~ arch/x86/kvm/lapic.c:2954:6: error: call to undeclared function 'to_hv_vcpu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 2954 | if (to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap)) { | ^ arch/x86/kvm/lapic.c:2954:43: error: call to undeclared function 'to_hv_synic'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 2954 | if (to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap)) { | ^ arch/x86/kvm/lapic.c:2954:62: error: member reference type 'int' is not a pointer 2954 | if (to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap)) { | ~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:50:37: note: expanded from macro 'bitop' 50 | __builtin_constant_p((uintptr_t)(addr) != (uintptr_t)NULL) && \ | ^~~~ arch/x86/kvm/lapic.c:2954:62: error: member reference type 'int' is not a pointer 2954 | if (to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap)) { | ~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:51:16: note: expanded from macro 'bitop' 51 | (uintptr_t)(addr) != (uintptr_t)NULL && \ | ^~~~ arch/x86/kvm/lapic.c:2954:62: error: member reference type 'int' is not a pointer 2954 | if (to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap)) { | ~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:52:50: note: expanded from macro 'bitop' 52 | __builtin_constant_p(*(const unsigned long *)(addr))) ? \ | ^~~~ arch/x86/kvm/lapic.c:2954:62: error: member reference type 'int' is not a pointer 2954 | if (to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap)) { | ~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:53:17: note: expanded from macro 'bitop' 53 | const##op(nr, addr) : op(nr, addr)) | ^~~~ arch/x86/kvm/lapic.c:2954:62: error: member reference type 'int' is not a pointer 2954 | if (to_hv_vcpu(vcpu) && test_bit(vector, to_hv_synic(vcpu)->auto_eoi_bitmap)) { | ~~~~~~~~~~~~~~~~~ ^ include/linux/bitops.h:61:50: note: expanded from macro 'test_bit' 61 | #define test_bit(nr, addr) bitop(_test_bit, nr, addr) | ^~~~ include/linux/bitops.h:53:32: note: expanded from macro 'bitop' 53 | const##op(nr, addr) : op(nr, addr)) | ^~~~ 14 errors generated.

Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PTP_1588_CLOCK Depends on [n]: NET [=y] && POSIX_TIMERS [=n] Selected by [m]: - SXE [=m] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_LINKDATA [=y] && (X86 [=y] || ARM64) && PCI [=y] - SXE_VF [=m] && NETDEVICES [=y] && ETHERNET [=y] && NET_VENDOR_LINKDATA [=y] && (X86 [=y] || ARM64) && PCI [=y] vim +/to_hv_vcpu +485 arch/x86/kvm/svm/nested.c 36e2e98363e6c1 Paolo Bonzini 2020-05-22 476 d2e5601907bd29 Sean Christopherson 2021-06-09 477 static void nested_svm_transition_tlb_flush(struct kvm_vcpu *vcpu) d2e5601907bd29 Sean Christopherson 2021-06-09 478 { 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 479 /* 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 480 * KVM_REQ_HV_TLB_FLUSH flushes entries from either L1's VP_ID or 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 481 * L2's VP_ID upon request from the guest. Make sure we check for 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 482 * pending entries in the right FIFO upon L1/L2 transition as these 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 483 * requests are put by other vCPUs asynchronously. 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 484 */ 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 @485 if (to_hv_vcpu(vcpu) && npt_enabled) 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 486 kvm_make_request(KVM_REQ_HV_TLB_FLUSH, vcpu); 3f4a812edf5cb0 Vitaly Kuznetsov 2022-11-01 487 d2e5601907bd29 Sean Christopherson 2021-06-09 488 /* d2e5601907bd29 Sean Christopherson 2021-06-09 489 * TODO: optimize unconditional TLB flush/MMU sync. A partial list of d2e5601907bd29 Sean Christopherson 2021-06-09 490 * things to fix before this can be conditional: d2e5601907bd29 Sean Christopherson 2021-06-09 491 * d2e5601907bd29 Sean Christopherson 2021-06-09 492 * - Flush TLBs for both L1 and L2 remote TLB flush d2e5601907bd29 Sean Christopherson 2021-06-09 493 * - Honor L1's request to flush an ASID on nested VMRUN d2e5601907bd29 Sean Christopherson 2021-06-09 494 * - Sync nested NPT MMU on VMRUN that flushes L2's ASID[*] d2e5601907bd29 Sean Christopherson 2021-06-09 495 * - Don't crush a pending TLB flush in vmcb02 on nested VMRUN d2e5601907bd29 Sean Christopherson 2021-06-09 496 * - Flush L1's ASID on KVM_REQ_TLB_FLUSH_GUEST d2e5601907bd29 Sean Christopherson 2021-06-09 497 * d2e5601907bd29 Sean Christopherson 2021-06-09 498 * [*] Unlike nested EPT, SVM's ASID management can invalidate nested d2e5601907bd29 Sean Christopherson 2021-06-09 499 * NPT guest-physical mappings on VMRUN. d2e5601907bd29 Sean Christopherson 2021-06-09 500 */ d2e5601907bd29 Sean Christopherson 2021-06-09 501 kvm_make_request(KVM_REQ_MMU_SYNC, vcpu); d2e5601907bd29 Sean Christopherson 2021-06-09 502 kvm_make_request(KVM_REQ_TLB_FLUSH_CURRENT, vcpu); d2e5601907bd29 Sean Christopherson 2021-06-09 503 } d2e5601907bd29 Sean Christopherson 2021-06-09 504 :::::: The code at line 485 was first introduced by commit :::::: 3f4a812edf5cb0a50e65fbdfafdb3e688da18f16 KVM: nSVM: hyper-v: Enable L2 TLB flush :::::: TO: Vitaly Kuznetsov <vkuznets@redhat.com> :::::: CC: Paolo Bonzini <pbonzini@redhat.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki