tree: https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm.git kvm-arm64/nv-wip-v5.0-rc1 head: 688c386ca096f2c1f2eee386697586c88df5d5bc commit: 3da39279c7b03e5f797de7c283a0de99f69e6a17 [45/75] KVM: arm64: nv: Unmap/flush shadow stage 2 page tables config: arm-axm55xx_defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 3da39279c7b03e5f797de7c283a0de99f69e6a17 # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=arm All errors (new ones prefixed by >>): arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_arch_init_vm': arch/arm/kvm/../../../virt/kvm/arm/arm.c:133:39: error: 'struct kvm_arch' has no member named 'mmu' ret = kvm_alloc_stage2_pgd(&kvm->arch.mmu); ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:138:11: error: 'struct kvm_arch' has no member named 'mmu' kvm->arch.mmu.vmid.vmid_gen = 0; ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:139:11: error: 'struct kvm_arch' has no member named 'mmu' kvm->arch.mmu.kvm = kvm; ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:140:11: error: 'struct kvm_arch' has no member named 'mmu' kvm->arch.mmu.vttbr = -1; ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:141:11: error: 'struct kvm_arch' has no member named 'mmu' kvm->arch.mmu.nested_stage2_enabled = false; ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:143:11: error: 'struct kvm_arch' has no member named 'nested_mmus' kvm->arch.nested_mmus = NULL; ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:144:11: error: 'struct kvm_arch' has no member named 'nested_mmus_size' kvm->arch.nested_mmus_size = 0; ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:158:32: error: 'struct kvm_arch' has no member named 'mmu' kvm_free_stage2_pgd(&kvm->arch.mmu); ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_arch_vcpu_init': arch/arm/kvm/../../../virt/kvm/arm/arm.c:363:12: error: 'struct kvm_vcpu_arch' has no member named 'hw_mmu' vcpu->arch.hw_mmu = &vcpu->kvm->arch.mmu; ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:363:38: error: 'struct kvm_arch' has no member named 'mmu' vcpu->arch.hw_mmu = &vcpu->kvm->arch.mmu; ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_arch_vcpu_load': arch/arm/kvm/../../../virt/kvm/arm/arm.c:372:2: error: implicit declaration of function 'kvm_vcpu_load_hw_mmu'; did you mean 'kvm_vcpu_load_sysregs'? [-Werror=implicit-function-declaration] kvm_vcpu_load_hw_mmu(vcpu); ^~~~~~~~~~~~~~~~~~~~ kvm_vcpu_load_sysregs arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_arch_vcpu_put': arch/arm/kvm/../../../virt/kvm/arm/arm.c:406:2: error: implicit declaration of function 'kvm_vcpu_put_hw_mmu'; did you mean 'kvm_vcpu_dabt_is_cm'? [-Werror=implicit-function-declaration] kvm_vcpu_put_hw_mmu(vcpu); ^~~~~~~~~~~~~~~~~~~ kvm_vcpu_dabt_is_cm arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_arch_vcpu_ioctl_run': arch/arm/kvm/../../../virt/kvm/arm/arm.c:689:26: error: 'struct kvm_vcpu_arch' has no member named 'hw_mmu' update_vmid(&vcpu->arch.hw_mmu->vmid); ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c:738:48: error: 'struct kvm_vcpu_arch' has no member named 'hw_mmu' if (ret <= 0 || need_new_vmid_gen(&vcpu->arch.hw_mmu->vmid) || ^ arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_vcpu_set_target': arch/arm/kvm/../../../virt/kvm/arm/arm.c:973:15: error: 'KVM_ARM_VCPU_NESTED_VIRT' undeclared (first use in this function); did you mean 'KVM_ARM_VCPU_TIMER_CTRL'? if (test_bit(KVM_ARM_VCPU_NESTED_VIRT, vcpu->arch.features)) { ^~~~~~~~~~~~~~~~~~~~~~~~ KVM_ARM_VCPU_TIMER_CTRL arch/arm/kvm/../../../virt/kvm/arm/arm.c:973:15: note: each undeclared identifier is reported only once for each function it appears in arch/arm/kvm/../../../virt/kvm/arm/arm.c:976:8: error: implicit declaration of function 'cpus_have_const_cap'; did you mean 'cpu_have_feature'? [-Werror=implicit-function-declaration] if (!cpus_have_const_cap(ARM64_HAS_NESTED_VIRT)) ^~~~~~~~~~~~~~~~~~~ cpu_have_feature arch/arm/kvm/../../../virt/kvm/arm/arm.c:976:28: error: 'ARM64_HAS_NESTED_VIRT' undeclared (first use in this function); did you mean 'KVM_ARM_VCPU_NESTED_VIRT'? if (!cpus_have_const_cap(ARM64_HAS_NESTED_VIRT)) ^~~~~~~~~~~~~~~~~~~~~ KVM_ARM_VCPU_NESTED_VIRT arch/arm/kvm/../../../virt/kvm/arm/arm.c:979:9: error: implicit declaration of function 'kvm_vcpu_init_nested'; did you mean 'kvm_vcpu_initialized'? [-Werror=implicit-function-declaration] ret = kvm_vcpu_init_nested(vcpu); ^~~~~~~~~~~~~~~~~~~~ kvm_vcpu_initialized arch/arm/kvm/../../../virt/kvm/arm/arm.c: In function 'kvm_arch_vcpu_ioctl_vcpu_init': >> arch/arm/kvm/../../../virt/kvm/arm/arm.c:1003:3: error: implicit declaration of function 'kvm_nested_s2_clear'; did you mean '__nodes_clear'? [-Werror=implicit-function-declaration] kvm_nested_s2_clear(vcpu->kvm); ^~~~~~~~~~~~~~~~~~~ __nodes_clear cc1: some warnings being treated as errors -- ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:182:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void clear_stage2_pud_entry(struct kvm_s2_mmu *mmu, pud_t *pud, phys_addr_t addr) ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:313:38: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static void unmap_stage2_puds(struct kvm_s2_mmu *mmu, pgd_t *pgd, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'unmap_stage2_puds': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:316:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:328:28: error: passing argument 1 of 'kvm_tlb_flush_vmid_ipa' from incompatible pointer type [-Werror=incompatible-pointer-types] kvm_tlb_flush_vmid_ipa(mmu, addr); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:69:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void kvm_tlb_flush_vmid_ipa(struct kvm_s2_mmu *mmu, phys_addr_t ipa) ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:332:23: error: passing argument 1 of 'unmap_stage2_pmds' from incompatible pointer type [-Werror=incompatible-pointer-types] unmap_stage2_pmds(mmu, pud, addr, next); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:283:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void unmap_stage2_pmds(struct kvm_s2_mmu *mmu, pud_t *pud, ^~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:338:26: error: passing argument 1 of 'clear_stage2_pgd_entry' from incompatible pointer type [-Werror=incompatible-pointer-types] clear_stage2_pgd_entry(mmu, pgd, start_addr); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:171:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void clear_stage2_pgd_entry(struct kvm_s2_mmu *mmu, pgd_t *pgd, phys_addr_t addr) ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:316:14: warning: unused variable 'kvm' [-Wunused-variable] struct kvm *kvm = mmu->kvm; ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:352:36: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration void kvm_unmap_stage2_range(struct kvm_s2_mmu *mmu, phys_addr_t start, u64 size) ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_unmap_stage2_range': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:354:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:373:22: error: passing argument 1 of 'unmap_stage2_puds' from incompatible pointer type [-Werror=incompatible-pointer-types] unmap_stage2_puds(mmu, pgd, addr, next); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:313:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void unmap_stage2_puds(struct kvm_s2_mmu *mmu, pgd_t *pgd, ^~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:383:38: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static void stage2_flush_ptes(struct kvm_s2_mmu *mmu, pmd_t *pmd, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:395:38: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static void stage2_flush_pmds(struct kvm_s2_mmu *mmu, pud_t *pud, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_flush_pmds': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:398:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:409:23: error: passing argument 1 of 'stage2_flush_ptes' from incompatible pointer type [-Werror=incompatible-pointer-types] stage2_flush_ptes(mmu, pmd, addr, next); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:383:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void stage2_flush_ptes(struct kvm_s2_mmu *mmu, pmd_t *pmd, ^~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:414:38: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static void stage2_flush_puds(struct kvm_s2_mmu *mmu, pgd_t *pgd, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_flush_puds': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:417:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:428:23: error: passing argument 1 of 'stage2_flush_pmds' from incompatible pointer type [-Werror=incompatible-pointer-types] stage2_flush_pmds(mmu, pud, addr, next); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:395:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void stage2_flush_pmds(struct kvm_s2_mmu *mmu, pud_t *pud, ^~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:417:14: warning: unused variable 'kvm' [-Wunused-variable] struct kvm *kvm = mmu->kvm; ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:433:36: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration void kvm_stage2_flush_range(struct kvm_s2_mmu *mmu, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_stage2_flush_range': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:436:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:444:22: error: passing argument 1 of 'stage2_flush_puds' from incompatible pointer type [-Werror=incompatible-pointer-types] stage2_flush_puds(mmu, pgd, addr, next); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:414:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void stage2_flush_puds(struct kvm_s2_mmu *mmu, pgd_t *pgd, ^~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:448:41: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static void stage2_flush_memslot(struct kvm_s2_mmu *mmu, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_flush_memslot': >> arch/arm/kvm/../../../virt/kvm/arm/mmu.c:454:25: error: passing argument 1 of 'kvm_stage2_flush_range' from incompatible pointer type [-Werror=incompatible-pointer-types] kvm_stage2_flush_range(mmu, addr, end); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:433:6: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' void kvm_stage2_flush_range(struct kvm_s2_mmu *mmu, ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_flush_vm': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:475:34: error: 'struct kvm_arch' has no member named 'mmu' stage2_flush_memslot(&kvm->arch.mmu, memslot); ^ >> arch/arm/kvm/../../../virt/kvm/arm/mmu.c:477:2: error: implicit declaration of function 'kvm_nested_s2_flush'; did you mean 'kvm_set_way_flush'? [-Werror=implicit-function-declaration] kvm_nested_s2_flush(kvm); ^~~~~~~~~~~~~~~~~~~ kvm_set_way_flush arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:928:33: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration int kvm_alloc_stage2_pgd(struct kvm_s2_mmu *mmu) ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:928:5: error: conflicting types for 'kvm_alloc_stage2_pgd' int kvm_alloc_stage2_pgd(struct kvm_s2_mmu *mmu) ^~~~~~~~~~~~~~~~~~~~ In file included from arch/arm/kvm/../../../virt/kvm/arm/mmu.c:28:0: arch/arm/include/asm/kvm_mmu.h:67:5: note: previous declaration of 'kvm_alloc_stage2_pgd' was here int kvm_alloc_stage2_pgd(struct kvm *kvm); ^~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_alloc_stage2_pgd': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:932:9: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' if (mmu->pgd != NULL) { ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_unmap_memslot': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:982:37: error: 'struct kvm_arch' has no member named 'mmu' kvm_unmap_stage2_range(&kvm->arch.mmu, gpa, vm_end - vm_start); ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1014:33: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu) ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1014:6: error: conflicting types for 'kvm_free_stage2_pgd' void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu) ^~~~~~~~~~~~~~~~~~~ In file included from arch/arm/kvm/../../../virt/kvm/arm/mmu.c:28:0: arch/arm/include/asm/kvm_mmu.h:68:6: note: previous declaration of 'kvm_free_stage2_pgd' was here void kvm_free_stage2_pgd(struct kvm *kvm); ^~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_free_stage2_pgd': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1016:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1021:26: error: passing argument 1 of 'kvm_unmap_stage2_range' from incompatible pointer type [-Werror=incompatible-pointer-types] kvm_unmap_stage2_range(mmu, 0, kvm_phys_size(kvm)); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:352:6: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' void kvm_unmap_stage2_range(struct kvm_s2_mmu *mmu, phys_addr_t start, u64 size) ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1022:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion] pgd = READ_ONCE(mmu->pgd); ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1032:37: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static pud_t *stage2_get_pud(struct kvm_s2_mmu *mmu, struct kvm_mmu_memory_cache *cache, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_get_pud': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1035:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1035:14: warning: unused variable 'kvm' [-Wunused-variable] struct kvm *kvm = mmu->kvm; ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1051:37: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static pmd_t *stage2_get_pmd(struct kvm_s2_mmu *mmu, struct kvm_mmu_memory_cache *cache, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_get_pmd': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1054:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1058:23: error: passing argument 1 of 'stage2_get_pud' from incompatible pointer type [-Werror=incompatible-pointer-types] pud = stage2_get_pud(mmu, cache, addr); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1032:15: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static pud_t *stage2_get_pud(struct kvm_s2_mmu *mmu, struct kvm_mmu_memory_cache *cache, ^~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1054:14: warning: unused variable 'kvm' [-Wunused-variable] struct kvm *kvm = mmu->kvm; ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1073:39: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static int stage2_set_pmd_huge(struct kvm_s2_mmu *mmu, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_set_pmd_huge': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1079:23: error: passing argument 1 of 'stage2_get_pmd' from incompatible pointer type [-Werror=incompatible-pointer-types] pmd = stage2_get_pmd(mmu, cache, addr); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1051:15: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static pmd_t *stage2_get_pmd(struct kvm_s2_mmu *mmu, struct kvm_mmu_memory_cache *cache, ^~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1112:26: error: passing argument 1 of 'kvm_tlb_flush_vmid_ipa' from incompatible pointer type [-Werror=incompatible-pointer-types] kvm_tlb_flush_vmid_ipa(mmu, addr); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:69:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void kvm_tlb_flush_vmid_ipa(struct kvm_s2_mmu *mmu, phys_addr_t ipa) ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1121:39: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static int stage2_set_pud_huge(struct kvm_s2_mmu *mmu, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_set_pud_huge': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1125:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1128:24: error: passing argument 1 of 'stage2_get_pud' from incompatible pointer type [-Werror=incompatible-pointer-types] -- ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1032:15: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static pud_t *stage2_get_pud(struct kvm_s2_mmu *mmu, struct kvm_mmu_memory_cache *cache, ^~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1162:14: warning: unused variable 'kvm' [-Wunused-variable] struct kvm *kvm = mmu->kvm; ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1197:35: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static bool stage2_is_exec(struct kvm_s2_mmu *mmu, phys_addr_t addr) ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_is_exec': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1204:32: error: passing argument 1 of 'stage2_get_leaf_entry' from incompatible pointer type [-Werror=incompatible-pointer-types] found = stage2_get_leaf_entry(mmu, addr, &pudp, &pmdp, &ptep); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1159:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static bool stage2_get_leaf_entry(struct kvm_s2_mmu *mmu, phys_addr_t addr, ^~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1216:34: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static int stage2_set_pte(struct kvm_s2_mmu *mmu, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_set_pte': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1221:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1231:23: error: passing argument 1 of 'stage2_get_pud' from incompatible pointer type [-Werror=incompatible-pointer-types] pud = stage2_get_pud(mmu, cache, addr); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1032:15: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static pud_t *stage2_get_pud(struct kvm_s2_mmu *mmu, struct kvm_mmu_memory_cache *cache, ^~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1245:23: error: passing argument 1 of 'stage2_dissolve_pud' from incompatible pointer type [-Werror=incompatible-pointer-types] stage2_dissolve_pud(mmu, addr, pud); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:127:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void stage2_dissolve_pud(struct kvm_s2_mmu *mmu, phys_addr_t addr, pud_t *pudp) ^~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1269:23: error: passing argument 1 of 'stage2_dissolve_pmd' from incompatible pointer type [-Werror=incompatible-pointer-types] stage2_dissolve_pmd(mmu, addr, pmd); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:108:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void stage2_dissolve_pmd(struct kvm_s2_mmu *mmu, phys_addr_t addr, pmd_t *pmd) ^~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1293:26: error: passing argument 1 of 'kvm_tlb_flush_vmid_ipa' from incompatible pointer type [-Werror=incompatible-pointer-types] kvm_tlb_flush_vmid_ipa(mmu, addr); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:69:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void kvm_tlb_flush_vmid_ipa(struct kvm_s2_mmu *mmu, phys_addr_t ipa) ^~~~~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1221:14: warning: unused variable 'kvm' [-Wunused-variable] struct kvm *kvm = mmu->kvm; ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_phys_addr_ioremap': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1359:34: error: 'struct kvm_arch' has no member named 'mmu' ret = stage2_set_pte(&kvm->arch.mmu, &cache, addr, &pte, ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1448:35: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static void stage2_wp_pmds(struct kvm_s2_mmu *mmu, pud_t *pud, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_wp_pmds': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1451:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1478:36: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration static void stage2_wp_puds(struct kvm_s2_mmu *mmu, pgd_t *pgd, ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'stage2_wp_puds': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1481:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1493:20: error: passing argument 1 of 'stage2_wp_pmds' from incompatible pointer type [-Werror=incompatible-pointer-types] stage2_wp_pmds(mmu, pud, addr, next); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1448:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void stage2_wp_pmds(struct kvm_s2_mmu *mmu, pud_t *pud, ^~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1481:14: warning: unused variable 'kvm' [-Wunused-variable] struct kvm *kvm = mmu->kvm; ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1505:33: warning: 'struct kvm_s2_mmu' declared inside parameter list will not be visible outside of this definition or declaration void kvm_stage2_wp_range(struct kvm_s2_mmu *mmu, phys_addr_t addr, phys_addr_t end) ^~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_stage2_wp_range': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1507:23: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' struct kvm *kvm = mmu->kvm; ^~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1527:19: error: passing argument 1 of 'stage2_wp_puds' from incompatible pointer type [-Werror=incompatible-pointer-types] stage2_wp_puds(mmu, pgd, addr, next); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1478:14: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static void stage2_wp_puds(struct kvm_s2_mmu *mmu, pgd_t *pgd, ^~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_mmu_wp_memory_region': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1552:32: error: 'struct kvm_arch' has no member named 'mmu' kvm_stage2_wp_range(&kvm->arch.mmu, start, end); ^ >> arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1553:2: error: implicit declaration of function 'kvm_nested_s2_wp'; did you mean 'kvm_reset_vcpu'? [-Werror=implicit-function-declaration] kvm_nested_s2_wp(kvm); ^~~~~~~~~~~~~~~~ kvm_reset_vcpu arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_mmu_write_protect_pt_masked': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1577:32: error: 'struct kvm_arch' has no member named 'mmu' kvm_stage2_wp_range(&kvm->arch.mmu, start, end); ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: At top level: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1676:13: warning: 'struct kvm_s2_trans' declared inside parameter list will not be visible outside of this definition or declaration struct kvm_s2_trans *nested, ^~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'user_mem_abort': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1693:37: error: 'struct kvm_vcpu_arch' has no member named 'hw_mmu' struct kvm_s2_mmu *mmu = vcpu->arch.hw_mmu; ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1720:6: error: implicit declaration of function 'kvm_is_shadow_s2_fault'; did you mean 'kvm_is_write_fault'? [-Werror=implicit-function-declaration] if (kvm_is_shadow_s2_fault(vcpu)) { ^~~~~~~~~~~~~~~~~~~~~~ kvm_is_write_fault arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1721:15: error: dereferencing pointer to incomplete type 'struct kvm_s2_trans' ipa = nested->output; ^~ In file included from include/asm-generic/bug.h:18:0, from arch/arm/include/asm/bug.h:60, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:9, from include/linux/mman.h:5, from arch/arm/kvm/../../../virt/kvm/arm/mmu.c:19: include/linux/kernel.h:870:2: error: first argument to '__builtin_choose_expr' not a constant __builtin_choose_expr(__safe_cmp(x, y), \ ^ include/linux/kernel.h:879:19: note: in expansion of macro '__careful_cmp' #define min(x, y) __careful_cmp(x, y, <) ^~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1728:18: note: in expansion of macro 'min' max_map_size = min(nested->block_size, max_map_size); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1821:47: error: passing argument 1 of 'stage2_is_exec' from incompatible pointer type [-Werror=incompatible-pointer-types] (fault_status == FSC_PERM && stage2_is_exec(mmu, fault_ipa)); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1197:13: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static bool stage2_is_exec(struct kvm_s2_mmu *mmu, phys_addr_t addr) ^~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1833:29: error: passing argument 1 of 'stage2_set_pud_huge' from incompatible pointer type [-Werror=incompatible-pointer-types] ret = stage2_set_pud_huge(mmu, memcache, fault_ipa, &new_pud); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1121:12: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static int stage2_set_pud_huge(struct kvm_s2_mmu *mmu, ^~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1845:29: error: passing argument 1 of 'stage2_set_pmd_huge' from incompatible pointer type [-Werror=incompatible-pointer-types] ret = stage2_set_pmd_huge(mmu, memcache, fault_ipa, &new_pmd); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1073:12: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static int stage2_set_pmd_huge(struct kvm_s2_mmu *mmu, ^~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1857:24: error: passing argument 1 of 'stage2_set_pte' from incompatible pointer type [-Werror=incompatible-pointer-types] ret = stage2_set_pte(mmu, memcache, fault_ipa, &new_pte, flags); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1216:12: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' static int stage2_set_pte(struct kvm_s2_mmu *mmu, ^~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'handle_access_fault': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1886:39: error: 'struct kvm_vcpu_arch' has no member named 'hw_mmu' if (!stage2_get_leaf_entry(vcpu->arch.hw_mmu, fault_ipa, &pud, &pmd, &pte)) ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_handle_guest_abort': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1927:22: error: storage size of 'nested_trans' isn't known struct kvm_s2_trans nested_trans; ^~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1986:9: error: implicit declaration of function 'kvm_walk_nested_s2'; did you mean 'kvm_inject_nested_irq'? [-Werror=implicit-function-declaration] ret = kvm_walk_nested_s2(vcpu, fault_ipa, &nested_trans); ^~~~~~~~~~~~~~~~~~ kvm_inject_nested_irq arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1988:4: error: implicit declaration of function 'kvm_inject_s2_fault'; did you mean 'kvm_inject_pabt'? [-Werror=implicit-function-declaration] kvm_inject_s2_fault(vcpu, nested_trans.esr); ^~~~~~~~~~~~~~~~~~~ kvm_inject_pabt arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1993:9: error: implicit declaration of function 'kvm_s2_handle_perm_fault'; did you mean 'handle_mm_fault'? [-Werror=implicit-function-declaration] ret = kvm_s2_handle_perm_fault(vcpu, fault_ipa, &nested_trans); ^~~~~~~~~~~~~~~~~~~~~~~~ handle_mm_fault arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1927:22: warning: unused variable 'nested_trans' [-Wunused-variable] struct kvm_s2_trans nested_trans; ^~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_unmap_hva_handler': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2093:35: error: 'struct kvm_arch' has no member named 'mmu' kvm_unmap_stage2_range(&kvm->arch.mmu, gpa, size); ^ >> arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2094:2: error: implicit declaration of function 'kvm_nested_s2_clear'; did you mean '__nodes_clear'? [-Werror=implicit-function-declaration] kvm_nested_s2_clear(kvm); ^~~~~~~~~~~~~~~~~~~ __nodes_clear arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_unmap_hva_range': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2101:16: error: 'struct kvm_arch' has no member named 'mmu' if (!kvm->arch.mmu.pgd) ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_set_spte_handler': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2121:27: error: 'struct kvm_arch' has no member named 'mmu' stage2_set_pte(&kvm->arch.mmu, NULL, gpa, pte, 0); ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_set_spte_hva': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2133:16: error: 'struct kvm_arch' has no member named 'mmu' if (!kvm->arch.mmu.pgd) ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_age_hva_handler': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2156:39: error: 'struct kvm_arch' has no member named 'mmu' if (!stage2_get_leaf_entry(&kvm->arch.mmu, gpa, &pud, &pmd, &pte)) ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_test_age_hva_handler': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2181:39: error: 'struct kvm_arch' has no member named 'mmu' if (!stage2_get_leaf_entry(&kvm->arch.mmu, gpa, &pud, &pmd, &pte)) ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_age_hva': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2199:16: error: 'struct kvm_arch' has no member named 'mmu' if (!kvm->arch.mmu.pgd) ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_test_age_hva': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2207:16: error: 'struct kvm_arch' has no member named 'mmu' if (!kvm->arch.mmu.pgd) ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_arch_prepare_memory_region': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2420:36: error: 'struct kvm_arch' has no member named 'mmu' kvm_unmap_stage2_range(&kvm->arch.mmu, mem->guest_phys_addr, mem->memory_size); ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2422:34: error: 'struct kvm_arch' has no member named 'mmu' stage2_flush_memslot(&kvm->arch.mmu, memslot); ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_arch_flush_shadow_all': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2448:27: error: 'struct kvm_arch' has no member named 'nested_mmus_size' for (i = 0; i < kvm->arch.nested_mmus_size; i++) { ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2449:38: error: 'struct kvm_arch' has no member named 'nested_mmus' struct kvm_s2_mmu *mmu = &kvm->arch.nested_mmus[i]; ^ In file included from arch/arm/include/asm/bug.h:60:0, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/mm.h:9, from include/linux/mman.h:5, from arch/arm/kvm/../../../virt/kvm/arm/mmu.c:19: arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2451:14: error: dereferencing pointer to incomplete type 'struct kvm_s2_mmu' WARN_ON(mmu->usage_count > 0); ^ include/asm-generic/bug.h:122:25: note: in definition of macro 'WARN_ON' int __ret_warn_on = !!(condition); \ ^~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2454:24: error: passing argument 1 of 'kvm_free_stage2_pgd' from incompatible pointer type [-Werror=incompatible-pointer-types] kvm_free_stage2_pgd(mmu); ^~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:1014:6: note: expected 'struct kvm_s2_mmu *' but argument is of type 'struct kvm_s2_mmu *' void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu) ^~~~~~~~~~~~~~~~~~~ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2456:17: error: 'struct kvm_arch' has no member named 'nested_mmus' kfree(kvm->arch.nested_mmus); ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2457:11: error: 'struct kvm_arch' has no member named 'nested_mmus' kvm->arch.nested_mmus = NULL; ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2458:11: error: 'struct kvm_arch' has no member named 'nested_mmus_size' kvm->arch.nested_mmus_size = 0; ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2459:32: error: 'struct kvm_arch' has no member named 'mmu' kvm_free_stage2_pgd(&kvm->arch.mmu); ^ arch/arm/kvm/../../../virt/kvm/arm/mmu.c: In function 'kvm_arch_flush_shadow_memslot': arch/arm/kvm/../../../virt/kvm/arm/mmu.c:2469:35: error: 'struct kvm_arch' has no member named 'mmu' kvm_unmap_stage2_range(&kvm->arch.mmu, gpa, size); ^ cc1: some warnings being treated as errors vim +1003 arch/arm/kvm/../../../virt/kvm/arm/arm.c 934 935 static int kvm_vcpu_set_target(struct kvm_vcpu *vcpu, 936 const struct kvm_vcpu_init *init) 937 { 938 unsigned int i; 939 int phys_target = kvm_target_cpu(); 940 941 if (init->target != phys_target) 942 return -EINVAL; 943 944 /* 945 * Secondary and subsequent calls to KVM_ARM_VCPU_INIT must 946 * use the same target. 947 */ 948 if (vcpu->arch.target != -1 && vcpu->arch.target != init->target) 949 return -EINVAL; 950 951 /* -ENOENT for unknown features, -EINVAL for invalid combinations. */ 952 for (i = 0; i < sizeof(init->features) * 8; i++) { 953 bool set = (init->features[i / 32] & (1 << (i % 32))); 954 955 if (set && i >= KVM_VCPU_MAX_FEATURES) 956 return -ENOENT; 957 958 /* 959 * Secondary and subsequent calls to KVM_ARM_VCPU_INIT must 960 * use the same feature set. 961 */ 962 if (vcpu->arch.target != -1 && i < KVM_VCPU_MAX_FEATURES && 963 test_bit(i, vcpu->arch.features) != set) 964 return -EINVAL; 965 966 if (set) 967 set_bit(i, vcpu->arch.features); 968 } 969 970 vcpu->arch.target = phys_target; 971 972 /* Now we know what it is, we can reset it. */ 973 if (test_bit(KVM_ARM_VCPU_NESTED_VIRT, vcpu->arch.features)) { 974 int ret; 975 > 976 if (!cpus_have_const_cap(ARM64_HAS_NESTED_VIRT)) 977 return -EINVAL; 978 979 ret = kvm_vcpu_init_nested(vcpu); 980 if (ret) 981 return ret; 982 } 983 984 return kvm_reset_vcpu(vcpu); 985 } 986 987 988 static int kvm_arch_vcpu_ioctl_vcpu_init(struct kvm_vcpu *vcpu, 989 struct kvm_vcpu_init *init) 990 { 991 int ret; 992 993 ret = kvm_vcpu_set_target(vcpu, init); 994 if (ret) 995 return ret; 996 997 /* 998 * Ensure a rebooted VM will fault in RAM pages and detect if the 999 * guest MMU is turned off and flush the caches as needed. 1000 */ 1001 if (vcpu->arch.has_run_once) { 1002 stage2_unmap_vm(vcpu->kvm); > 1003 kvm_nested_s2_clear(vcpu->kvm); 1004 } 1005 1006 vcpu_reset_hcr(vcpu); 1007 1008 /* 1009 * Handle the "start in power-off" case. 1010 */ 1011 if (test_bit(KVM_ARM_VCPU_POWER_OFF, vcpu->arch.features)) 1012 vcpu_power_off(vcpu); 1013 else 1014 vcpu->arch.power_off = false; 1015 1016 return 0; 1017 } 1018 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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