If virt_map() is called before any call to ____vm_vaddr_alloc() it will create the mapping using an invalid pgd.
Add call to virt_pgd_alloc() as part of virt_map() before creating the mapping, similarly to ____vm_vaddr_alloc() Reviewed-by: Ira Weiny <[email protected]> Reviewed-by: Binbin Wu <[email protected]> Signed-off-by: Sagi Shahar <[email protected]> --- tools/testing/selftests/kvm/lib/kvm_util.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index 1a93d6361671..0e6a487ca7a4 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -1569,6 +1569,7 @@ void virt_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, TEST_ASSERT(vaddr + size > vaddr, "Vaddr overflow"); TEST_ASSERT(paddr + size > paddr, "Paddr overflow"); + virt_pgd_alloc(vm); while (npages--) { virt_pg_map(vm, vaddr, paddr); sparsebit_set(vm->vpages_mapped, vaddr >> vm->page_shift); -- 2.51.1.851.g4ebd6896fd-goog
