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Date: Thu, 16 Dec 2021 19:10:25 +0800
From: kernel test robot <lkp@...el.com>
To: Isaku Yamahata <isaku.yamahata@...el.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [intel-tdx:kvm-upstream 127/152] arch/x86/kvm/vmx/tdx_stubs.c:29:5:
warning: no previous prototype for 'tdx_smi_allowed'
tree: https://github.com/intel/tdx.git kvm-upstream
head: bdfe06c17daab60c196ff80c1d98467a1d3734fa
commit: 11f826bfb08f30839cadce9dd9ee8bddaaf97e9f [127/152] KVM: TDX: silently discard SMI request
config: x86_64-randconfig-m001-20211216 (https://download.01.org/0day-ci/archive/20211216/202112161904.IbwmZ3eU-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/intel/tdx/commit/11f826bfb08f30839cadce9dd9ee8bddaaf97e9f
git remote add intel-tdx https://github.com/intel/tdx.git
git fetch --no-tags intel-tdx kvm-upstream
git checkout 11f826bfb08f30839cadce9dd9ee8bddaaf97e9f
# save the config file to linux build tree
mkdir build_dir
make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/kvm/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
arch/x86/kvm/vmx/tdx_stubs.c:4:13: warning: no previous prototype for 'tdx_pre_kvm_init' [-Wmissing-prototypes]
4 | void __init tdx_pre_kvm_init(unsigned int *vcpu_size,
| ^~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:6:12: warning: no previous prototype for 'tdx_hardware_setup' [-Wmissing-prototypes]
6 | int __init tdx_hardware_setup(struct kvm_x86_ops *x86_ops) { return -EOPNOTSUPP; }
| ^~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:7:6: warning: no previous prototype for 'tdx_hardware_enable' [-Wmissing-prototypes]
7 | void tdx_hardware_enable(void) {}
| ^~~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:8:6: warning: no previous prototype for 'tdx_hardware_disable' [-Wmissing-prototypes]
8 | void tdx_hardware_disable(void) {}
| ^~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:10:5: warning: no previous prototype for 'tdx_vcpu_create' [-Wmissing-prototypes]
10 | int tdx_vcpu_create(struct kvm_vcpu *vcpu) { return -EOPNOTSUPP; }
| ^~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:11:6: warning: no previous prototype for 'tdx_vcpu_free' [-Wmissing-prototypes]
11 | void tdx_vcpu_free(struct kvm_vcpu *vcpu) {}
| ^~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:12:6: warning: no previous prototype for 'tdx_vcpu_reset' [-Wmissing-prototypes]
12 | void tdx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event) {}
| ^~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:13:6: warning: no previous prototype for 'tdx_inject_nmi' [-Wmissing-prototypes]
13 | void tdx_inject_nmi(struct kvm_vcpu *vcpu) {}
| ^~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:14:12: warning: no previous prototype for 'tdx_vcpu_run' [-Wmissing-prototypes]
14 | fastpath_t tdx_vcpu_run(struct kvm_vcpu *vcpu) { return EXIT_FASTPATH_NONE; }
| ^~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:15:6: warning: no previous prototype for 'tdx_vcpu_load' [-Wmissing-prototypes]
15 | void tdx_vcpu_load(struct kvm_vcpu *vcpu, int cpu) {}
| ^~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:16:6: warning: no previous prototype for 'tdx_vcpu_put' [-Wmissing-prototypes]
16 | void tdx_vcpu_put(struct kvm_vcpu *vcpu) {}
| ^~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:17:6: warning: no previous prototype for 'tdx_prepare_switch_to_guest' [-Wmissing-prototypes]
17 | void tdx_prepare_switch_to_guest(struct kvm_vcpu *vcpu) {}
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:18:6: warning: no previous prototype for 'tdx_handle_exit_irqoff' [-Wmissing-prototypes]
18 | void tdx_handle_exit_irqoff(struct kvm_vcpu *vcpu) {}
| ^~~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:19:5: warning: no previous prototype for 'tdx_handle_exit' [-Wmissing-prototypes]
19 | int tdx_handle_exit(struct kvm_vcpu *vcpu,
| ^~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:21:6: warning: no previous prototype for 'tdx_is_emulated_msr' [-Wmissing-prototypes]
21 | bool tdx_is_emulated_msr(u32 index, bool write) { return false; }
| ^~~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:22:5: warning: no previous prototype for 'tdx_get_msr' [-Wmissing-prototypes]
22 | int tdx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr) { return 1; }
| ^~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:23:5: warning: no previous prototype for 'tdx_set_msr' [-Wmissing-prototypes]
23 | int tdx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr) { return 1; }
| ^~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:25:6: warning: no previous prototype for 'tdx_apicv_post_state_restore' [-Wmissing-prototypes]
25 | void tdx_apicv_post_state_restore(struct kvm_vcpu *vcpu) {}
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:26:5: warning: no previous prototype for 'tdx_deliver_posted_interrupt' [-Wmissing-prototypes]
26 | int tdx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector) { return 0; }
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:27:6: warning: no previous prototype for 'tdx_get_exit_info' [-Wmissing-prototypes]
27 | void tdx_get_exit_info(struct kvm_vcpu *vcpu, u32 *reason,
| ^~~~~~~~~~~~~~~~~
>> arch/x86/kvm/vmx/tdx_stubs.c:29:5: warning: no previous prototype for 'tdx_smi_allowed' [-Wmissing-prototypes]
29 | int tdx_smi_allowed(struct kvm_vcpu *vcpu, bool for_injection) { return false; }
| ^~~~~~~~~~~~~~~
>> arch/x86/kvm/vmx/tdx_stubs.c:30:5: warning: no previous prototype for 'tdx_enter_smm' [-Wmissing-prototypes]
30 | int tdx_enter_smm(struct kvm_vcpu *vcpu, char *smstate) { return 0; }
| ^~~~~~~~~~~~~
>> arch/x86/kvm/vmx/tdx_stubs.c:31:5: warning: no previous prototype for 'tdx_leave_smm' [-Wmissing-prototypes]
31 | int tdx_leave_smm(struct kvm_vcpu *vcpu, const char *smstate) { return 0; }
| ^~~~~~~~~~~~~
>> arch/x86/kvm/vmx/tdx_stubs.c:32:6: warning: no previous prototype for 'tdx_enable_smi_window' [-Wmissing-prototypes]
32 | void tdx_enable_smi_window(struct kvm_vcpu *vcpu) {}
| ^~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:34:5: warning: no previous prototype for 'tdx_dev_ioctl' [-Wmissing-prototypes]
34 | int tdx_dev_ioctl(void __user *argp) { return -EOPNOTSUPP; }
| ^~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:35:5: warning: no previous prototype for 'tdx_vm_ioctl' [-Wmissing-prototypes]
35 | int tdx_vm_ioctl(struct kvm *kvm, void __user *argp) { return -EOPNOTSUPP; }
| ^~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:36:5: warning: no previous prototype for 'tdx_vcpu_ioctl' [-Wmissing-prototypes]
36 | int tdx_vcpu_ioctl(struct kvm_vcpu *vcpu, void __user *argp) { return -ENOPNOTSUPP; }
| ^~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c: In function 'tdx_vcpu_ioctl':
arch/x86/kvm/vmx/tdx_stubs.c:36:72: error: 'ENOPNOTSUPP' undeclared (first use in this function); did you mean 'EOPNOTSUPP'?
36 | int tdx_vcpu_ioctl(struct kvm_vcpu *vcpu, void __user *argp) { return -ENOPNOTSUPP; }
| ^~~~~~~~~~~
| EOPNOTSUPP
arch/x86/kvm/vmx/tdx_stubs.c:36:72: note: each undeclared identifier is reported only once for each function it appears in
arch/x86/kvm/vmx/tdx_stubs.c: At top level:
arch/x86/kvm/vmx/tdx_stubs.c:38:6: warning: no previous prototype for 'tdx_flush_tlb' [-Wmissing-prototypes]
38 | void tdx_flush_tlb(struct kvm_vcpu *vcpu) {}
| ^~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c:39:6: warning: no previous prototype for 'tdx_load_mmu_pgd' [-Wmissing-prototypes]
39 | void tdx_load_mmu_pgd(struct kvm_vcpu *vcpu, hpa_t root_hpa, int root_level) {}
| ^~~~~~~~~~~~~~~~
arch/x86/kvm/vmx/tdx_stubs.c: In function 'tdx_vcpu_ioctl':
arch/x86/kvm/vmx/tdx_stubs.c:36:85: error: control reaches end of non-void function [-Werror=return-type]
36 | int tdx_vcpu_ioctl(struct kvm_vcpu *vcpu, void __user *argp) { return -ENOPNOTSUPP; }
| ^
cc1: some warnings being treated as errors
vim +/tdx_smi_allowed +29 arch/x86/kvm/vmx/tdx_stubs.c
24
25 void tdx_apicv_post_state_restore(struct kvm_vcpu *vcpu) {}
26 int tdx_deliver_posted_interrupt(struct kvm_vcpu *vcpu, int vector) { return 0; }
27 void tdx_get_exit_info(struct kvm_vcpu *vcpu, u32 *reason,
28 u64 *info1, u64 *info2, u32 *intr_info, u32 *error_code) {}
> 29 int tdx_smi_allowed(struct kvm_vcpu *vcpu, bool for_injection) { return false; }
> 30 int tdx_enter_smm(struct kvm_vcpu *vcpu, char *smstate) { return 0; }
> 31 int tdx_leave_smm(struct kvm_vcpu *vcpu, const char *smstate) { return 0; }
> 32 void tdx_enable_smi_window(struct kvm_vcpu *vcpu) {}
33
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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