tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 0e6ac87df9e5122747ac5d9e7da9a45555f16374 commit: 625086f87673687dc420e79c9fedff0c2d65cb49 [3159/3388] KVM: arm64: Add support for probing Hisi ncsnp capability config: arm64-defconfig (https://download.01.org/0day-ci/archive/20240224/202402241512.XOiHdLOg-lkp@i...) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240224/202402241512.XOiHdLOg-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/202402241512.XOiHdLOg-lkp@intel.com/ All errors (new ones prefixed by >>): aarch64-linux-ld: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o: in function `__clean_dcache_guest_page':

...

arch/arm64/include/asm/kvm_mmu.h:221:(.hyp.text+0x6898): undefined reference to `__kvm_nvhe_kvm_ncsnp_support' aarch64-linux-ld: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o: relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `__kvm_nvhe_kvm_ncsnp_support' which may bind externally can not be used when making a shared object; recompile with -fPIC arch/arm64/include/asm/kvm_mmu.h:221:(.hyp.text+0x6898): dangerous relocation: unsupported relocation aarch64-linux-ld: arch/arm64/include/asm/kvm_mmu.h:221:(.hyp.text+0x689c): undefined reference to `__kvm_nvhe_kvm_ncsnp_support' aarch64-linux-ld: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o: in function `kvm_pgtable_stage2_flush': arch/arm64/kvm/hyp/nvhe/../pgtable.c:1345:(.hyp.text+0x10554): undefined reference to `__kvm_nvhe_kvm_ncsnp_support' aarch64-linux-ld: arch/arm64/kvm/hyp/nvhe/kvm_nvhe.o: relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `__kvm_nvhe_kvm_ncsnp_support' which may bind externally can not be used when making a shared object; recompile with -fPIC arch/arm64/kvm/hyp/nvhe/../pgtable.c:1345:(.hyp.text+0x10554): dangerous relocation: unsupported relocation aarch64-linux-ld: arch/arm64/kvm/hyp/nvhe/../pgtable.c:1345:(.hyp.text+0x1056c): undefined reference to `__kvm_nvhe_kvm_ncsnp_support'

vim +221 arch/arm64/include/asm/kvm_mmu.h 212 213 static inline void __clean_dcache_guest_page(void *va, size_t size) 214 { 215 /* 216 * With FWB, we ensure that the guest always accesses memory using 217 * cacheable attributes, and we don't have to clean to PoC when 218 * faulting in pages. Furthermore, FWB implies IDC, so cleaning to 219 * PoU is not required either in this case. 220 */

221 if (kvm_ncsnp_support || cpus_have_const_cap(ARM64_HAS_STAGE2_FWB)) 222 return; 223 224 kvm_flush_dcache_to_poc(va, size); 225 } 226

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