[PATCH] x86/sev: Fix host kdump support for SNP
kernel test robot
lkp at intel.com
Thu Aug 29 08:50:07 PDT 2024
Hi Ashish,
kernel test robot noticed the following build warnings:
[auto build test WARNING on kvm/queue]
[also build test WARNING on linus/master v6.11-rc5 next-20240829]
[cannot apply to kvm/linux-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Ashish-Kalra/x86-sev-Fix-host-kdump-support-for-SNP/20240828-044035
base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
patch link: https://lore.kernel.org/r/20240827203804.4989-1-Ashish.Kalra%40amd.com
patch subject: [PATCH] x86/sev: Fix host kdump support for SNP
config: x86_64-buildonly-randconfig-002-20240829 (https://download.01.org/0day-ci/archive/20240829/202408292344.yuQ5sYEz-lkp@intel.com/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/20240829/202408292344.yuQ5sYEz-lkp@intel.com/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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408292344.yuQ5sYEz-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from arch/x86/kvm/svm/avic.c:28:
>> arch/x86/kvm/svm/svm.h:783:13: warning: 'snp_decommision_all' declared 'static' but never defined [-Wunused-function]
783 | static void snp_decommision_all(void);
| ^~~~~~~~~~~~~~~~~~~
--
In file included from arch/x86/kvm/svm/svm.c:50:
>> arch/x86/kvm/svm/svm.h:783:13: warning: 'snp_decommision_all' used but never defined
783 | static void snp_decommision_all(void);
| ^~~~~~~~~~~~~~~~~~~
vim +783 arch/x86/kvm/svm/svm.h
763
764 static inline void sev_free_vcpu(struct kvm_vcpu *vcpu) {}
765 static inline void sev_vm_destroy(struct kvm *kvm) {}
766 static inline void __init sev_set_cpu_caps(void) {}
767 static inline void __init sev_hardware_setup(void) {}
768 static inline void sev_hardware_unsetup(void) {}
769 static inline int sev_cpu_init(struct svm_cpu_data *sd) { return 0; }
770 static inline int sev_dev_get_attr(u32 group, u64 attr, u64 *val) { return -ENXIO; }
771 #define max_sev_asid 0
772 static inline void sev_handle_rmp_fault(struct kvm_vcpu *vcpu, gpa_t gpa, u64 error_code) {}
773 static inline void sev_snp_init_protected_guest_state(struct kvm_vcpu *vcpu) {}
774 static inline int sev_gmem_prepare(struct kvm *kvm, kvm_pfn_t pfn, gfn_t gfn, int max_order)
775 {
776 return 0;
777 }
778 static inline void sev_gmem_invalidate(kvm_pfn_t start, kvm_pfn_t end) {}
779 static inline int sev_private_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
780 {
781 return 0;
782 }
> 783 static void snp_decommision_all(void);
784 #endif
785
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