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charset=us-ascii Content-Disposition: inline tree: https://android.googlesource.com/kernel/common android16-6.12 head: 179c4d3da80ef129e67fba69fa022fe3f91c60be commit: bd55bd84082e4882aaeff13ebfdcb78b329f5302 [1/1] ANDROID: KVM: arm64: Generalize guest PA query config: arm64-randconfig-001-20250417 (https://download.01.org/0day-ci/archive/20250417/202504170716.InDP9qKb-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 7.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250417/202504170716.InDP9qKb-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202504170716.InDP9qKb-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/arm64/kvm/hyp/nvhe/mem_protect.c: In function 'pkvm_get_guest_pa_request': >> arch/arm64/kvm/hyp/nvhe/mem_protect.c:2766:49: warning: suggest parentheses around '-' in operand of '&' [-Wparentheses] *out_pa |= (ipa & kvm_granule_size(*out_level) - 1) & PAGE_MASK; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~ vim +2766 arch/arm64/kvm/hyp/nvhe/mem_protect.c 2733 2734 /* Return PA for an owned guest IPA or request it, and repeat the guest HVC */ 2735 int pkvm_get_guest_pa_request(struct pkvm_hyp_vcpu *hyp_vcpu, u64 ipa, 2736 size_t ipa_size_request, u64 *out_pa, s8 *out_level, 2737 u64 *exit_code) 2738 { 2739 struct kvm_hyp_req *req; 2740 kvm_pte_t pte; 2741 enum pkvm_page_state state; 2742 struct pkvm_hyp_vm *vm = pkvm_hyp_vcpu_to_hyp_vm(hyp_vcpu); 2743 2744 guest_lock_component(vm); 2745 WARN_ON(kvm_pgtable_get_leaf(&vm->pgt, ipa, &pte, out_level)); 2746 guest_unlock_component(vm); 2747 if (!kvm_pte_valid(pte)) { 2748 /* Page not mapped, create a request*/ 2749 req = pkvm_hyp_req_reserve(hyp_vcpu, KVM_HYP_REQ_TYPE_MAP); 2750 if (!req) 2751 return -ENOMEM; 2752 2753 req->map.guest_ipa = ipa; 2754 req->map.size = ipa_size_request; 2755 *exit_code = ARM_EXCEPTION_HYP_REQ; 2756 /* Repeat next time. */ 2757 write_sysreg_el2(read_sysreg_el2(SYS_ELR) - 4, SYS_ELR); 2758 return -ENOENT; 2759 } 2760 2761 state = pkvm_getstate(kvm_pgtable_stage2_pte_prot(pte)); 2762 if (state != PKVM_PAGE_OWNED) 2763 return -EPERM; 2764 2765 *out_pa = kvm_pte_to_phys(pte); > 2766 *out_pa |= (ipa & kvm_granule_size(*out_level) - 1) & PAGE_MASK; 2767 return 0; 2768 } 2769 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki