Hi Fuad, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue head: 79150772457f4d45e38b842d786240c36bb1f97f commit: 7221fa63c070975edd88fa684e191cda37bf6c28 [16/30] KVM: x86: Rename kvm->arch.has_private_mem to kvm->arch.supports_gmem config: x86_64-buildonly-randconfig-003-20250614 (https://download.01.org/0day-ci/archive/20250614/202506140800.swbOU0sS-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250614/202506140800.swbOU0sS-lkp@xxxxxxxxx/reproduce) 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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202506140800.swbOU0sS-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arch/x86/kvm/vmx/tdx.c: In function 'tdx_vm_init': >> arch/x86/kvm/vmx/tdx.c:627:18: error: 'struct kvm_arch' has no member named 'has_private_mem' 627 | kvm->arch.has_private_mem = true; | ^ arch/x86/kvm/vmx/tdx.c: In function 'tdx_vcpu_init_mem_region': arch/x86/kvm/vmx/tdx.c:3167:28: error: implicit declaration of function 'kvm_gmem_populate'; did you mean 'vmemmap_populate'? [-Werror=implicit-function-declaration] 3167 | gmem_ret = kvm_gmem_populate(kvm, gpa_to_gfn(region.gpa), | ^~~~~~~~~~~~~~~~~ | vmemmap_populate cc1: some warnings being treated as errors vim +627 arch/x86/kvm/vmx/tdx.c 8d032b683c29930 Isaku Yamahata 2025-02-25 621 8d032b683c29930 Isaku Yamahata 2025-02-25 622 int tdx_vm_init(struct kvm *kvm) 8d032b683c29930 Isaku Yamahata 2025-02-25 623 { 0186dd29a251866 Isaku Yamahata 2025-01-14 624 struct kvm_tdx *kvm_tdx = to_kvm_tdx(kvm); 0186dd29a251866 Isaku Yamahata 2025-01-14 625 8d032b683c29930 Isaku Yamahata 2025-02-25 626 kvm->arch.has_protected_state = true; 8d032b683c29930 Isaku Yamahata 2025-02-25 @627 kvm->arch.has_private_mem = true; 90fe64a94d54757 Yan Zhao 2025-02-24 628 kvm->arch.disabled_quirks |= KVM_X86_QUIRK_IGNORE_GUEST_PAT; 8d032b683c29930 Isaku Yamahata 2025-02-25 629 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 630 /* 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 631 * Because guest TD is protected, VMM can't parse the instruction in TD. 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 632 * Instead, guest uses MMIO hypercall. For unmodified device driver, 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 633 * #VE needs to be injected for MMIO and #VE handler in TD converts MMIO 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 634 * instruction into MMIO hypercall. 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 635 * 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 636 * SPTE value for MMIO needs to be setup so that #VE is injected into 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 637 * TD instead of triggering EPT MISCONFIG. 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 638 * - RWX=0 so that EPT violation is triggered. 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 639 * - suppress #VE bit is cleared to inject #VE. 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 640 */ 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 641 kvm_mmu_set_mmio_spte_value(kvm, 0); 7d10ffb1acac2c1 Isaku Yamahata 2024-11-12 642 f94f4a97e66543b Isaku Yamahata 2024-10-30 643 /* f94f4a97e66543b Isaku Yamahata 2024-10-30 644 * TDX has its own limit of maximum vCPUs it can support for all f94f4a97e66543b Isaku Yamahata 2024-10-30 645 * TDX guests in addition to KVM_MAX_VCPUS. TDX module reports f94f4a97e66543b Isaku Yamahata 2024-10-30 646 * such limit via the MAX_VCPU_PER_TD global metadata. In f94f4a97e66543b Isaku Yamahata 2024-10-30 647 * practice, it reflects the number of logical CPUs that ALL f94f4a97e66543b Isaku Yamahata 2024-10-30 648 * platforms that the TDX module supports can possibly have. f94f4a97e66543b Isaku Yamahata 2024-10-30 649 * f94f4a97e66543b Isaku Yamahata 2024-10-30 650 * Limit TDX guest's maximum vCPUs to the number of logical CPUs f94f4a97e66543b Isaku Yamahata 2024-10-30 651 * the platform has. Simply forwarding the MAX_VCPU_PER_TD to f94f4a97e66543b Isaku Yamahata 2024-10-30 652 * userspace would result in an unpredictable ABI. f94f4a97e66543b Isaku Yamahata 2024-10-30 653 */ f94f4a97e66543b Isaku Yamahata 2024-10-30 654 kvm->max_vcpus = min_t(int, kvm->max_vcpus, num_present_cpus()); f94f4a97e66543b Isaku Yamahata 2024-10-30 655 0186dd29a251866 Isaku Yamahata 2025-01-14 656 kvm_tdx->state = TD_STATE_UNINITIALIZED; 0186dd29a251866 Isaku Yamahata 2025-01-14 657 0186dd29a251866 Isaku Yamahata 2025-01-14 658 return 0; 8d032b683c29930 Isaku Yamahata 2025-02-25 659 } 8d032b683c29930 Isaku Yamahata 2025-02-25 660 :::::: The code at line 627 was first introduced by commit :::::: 8d032b683c299302aa8b5fbce17b9b87a138a5f5 KVM: TDX: create/destroy VM structure :::::: TO: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> :::::: CC: Paolo Bonzini <pbonzini@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
