diff options
Diffstat (limited to 'tools/testing/selftests/kvm/lib/arm64/processor.c')
| -rw-r--r-- | tools/testing/selftests/kvm/lib/arm64/processor.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/tools/testing/selftests/kvm/lib/arm64/processor.c b/tools/testing/selftests/kvm/lib/arm64/processor.c index eb115123d741..bd7480a93f96 100644 --- a/tools/testing/selftests/kvm/lib/arm64/processor.c +++ b/tools/testing/selftests/kvm/lib/arm64/processor.c @@ -185,7 +185,7 @@ void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr) _virt_pg_map(vm, vaddr, paddr, attr_idx); } -uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva) +uint64_t *virt_get_pte_hva_at_level(struct kvm_vm *vm, vm_vaddr_t gva, int level) { uint64_t *ptep; @@ -195,17 +195,23 @@ uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva) ptep = addr_gpa2hva(vm, vm->pgd) + pgd_index(vm, gva) * 8; if (!ptep) goto unmapped_gva; + if (level == 0) + return ptep; switch (vm->pgtable_levels) { case 4: ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pud_index(vm, gva) * 8; if (!ptep) goto unmapped_gva; + if (level == 1) + break; /* fall through */ case 3: ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pmd_index(vm, gva) * 8; if (!ptep) goto unmapped_gva; + if (level == 2) + break; /* fall through */ case 2: ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pte_index(vm, gva) * 8; @@ -223,6 +229,11 @@ unmapped_gva: exit(EXIT_FAILURE); } +uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva) +{ + return virt_get_pte_hva_at_level(vm, gva, 3); +} + vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva) { uint64_t *ptep = virt_get_pte_hva(vm, gva); |