tools/testing/selftests/kvm/x86_64/hyperv_features.c:618: undefined reference to `vm_handle_exception'

[kernel test robot]

Hi Paolo,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   440462198d9c45e48f2d8d9b18c5702d92282f46
commit: b8917b4ae44d1b945f6fba3d8ee6777edb44633b Merge tag 'kvmarm-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
date:   5 days ago
config: x86_64-rhel-8.3-kselftests (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b8917b4ae44d1b945f6fba3d8ee6777edb44633b
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout b8917b4ae44d1b945f6fba3d8ee6777edb44633b
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash -C tools/testing/selftests install

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   x86_64/hyperv_features.c: In function 'main':
   x86_64/hyperv_features.c:618:2: warning: implicit declaration of function 'vm_handle_exception' [-Wimplicit-function-declaration]
     618 |  vm_handle_exception(vm, GP_VECTOR, guest_gp_handler);
         |  ^~~~~~~~~~~~~~~~~~~
   /usr/bin/ld: /tmp/ccHVDiCb.o: in function `main':
>> tools/testing/selftests/kvm/x86_64/hyperv_features.c:618: undefined reference to `vm_handle_exception'
>> collect2: error: ld returned 1 exit status
--
   x86_64/mmu_role_test.c: In function 'mmu_role_test':
   x86_64/mmu_role_test.c:74:2: warning: implicit declaration of function 'vm_handle_exception' [-Wimplicit-function-declaration]
      74 |  vm_handle_exception(vm, PF_VECTOR, guest_pf_handler);
         |  ^~~~~~~~~~~~~~~~~~~
   /usr/bin/ld: /tmp/ccbPeCPt.o: in function `mmu_role_test':
>> tools/testing/selftests/kvm/x86_64/mmu_role_test.c:74: undefined reference to `vm_handle_exception'
>> collect2: error: ld returned 1 exit status
--
   x86_64/hyperv_features.c: In function 'main':
   x86_64/hyperv_features.c:618:2: warning: implicit declaration of function 'vm_handle_exception' [-Wimplicit-function-declaration]
     618 |  vm_handle_exception(vm, GP_VECTOR, guest_gp_handler);
         |  ^~~~~~~~~~~~~~~~~~~
   /usr/bin/ld: /tmp/cc9s0XgX.o: in function `main':
>> tools/testing/selftests/kvm/x86_64/hyperv_features.c:618: undefined reference to `vm_handle_exception'
>> collect2: error: ld returned 1 exit status
--
   x86_64/mmu_role_test.c: In function 'mmu_role_test':
   x86_64/mmu_role_test.c:74:2: warning: implicit declaration of function 'vm_handle_exception' [-Wimplicit-function-declaration]
      74 |  vm_handle_exception(vm, PF_VECTOR, guest_pf_handler);
         |  ^~~~~~~~~~~~~~~~~~~
   /usr/bin/ld: /tmp/cc0l2qLq.o: in function `mmu_role_test':
>> tools/testing/selftests/kvm/x86_64/mmu_role_test.c:74: undefined reference to `vm_handle_exception'
>> collect2: error: ld returned 1 exit status


vim +618 tools/testing/selftests/kvm/x86_64/hyperv_features.c

e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  593  
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  594  int main(void)
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  595  {
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  596  	struct kvm_cpuid2 *best;
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  597  	struct kvm_vm *vm;
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  598  	vm_vaddr_t msr_gva, hcall_page, hcall_params;
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  599  	struct kvm_enable_cap cap = {
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  600  		.cap = KVM_CAP_HYPERV_ENFORCE_CPUID,
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  601  		.args = {1}
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  602  	};
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  603  
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  604  	/* Test MSRs */
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  605  	vm = vm_create_default(VCPU_ID, 0, guest_msr);
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  606  
a9db9609c0e41d Sean Christopherson 2021-06-22  607  	msr_gva = vm_vaddr_alloc_page(vm);
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  608  	memset(addr_gva2hva(vm, msr_gva), 0x0, getpagesize());
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  609  	vcpu_args_set(vm, VCPU_ID, 1, msr_gva);
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  610  	vcpu_enable_cap(vm, VCPU_ID, &cap);
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  611  
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  612  	vcpu_set_hv_cpuid(vm, VCPU_ID);
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  613  
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  614  	best = kvm_get_supported_hv_cpuid();
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  615  
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  616  	vm_init_descriptor_tables(vm);
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21  617  	vcpu_init_descriptor_tables(vm, VCPU_ID);
e2e1cc1fbe54a9 Vitaly Kuznetsov    2021-05-21 @618  	vm_handle_exception(vm, GP_VECTOR, guest_gp_handler);

:::::: The code at line 618 was first introduced by commit
:::::: e2e1cc1fbe54a9520956a4539a3676d2ebf122dd KVM: selftests: Introduce hyperv_features test

:::::: TO: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
:::::: CC: Paolo Bonzini <pbonzini@xxxxxxxxxx>

---
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