diff --git a/target/arm/cpu64.c b/target/arm/cpu64.c
index 4b544a1c58..1974f1aeb7 100644
--- a/target/arm/cpu64.c
+++ b/target/arm/cpu64.c
@@ -316,6 +316,10 @@ static void aarch64_max_initfn(Object *obj)
 
         t = cpu->isar.id_aa64isar1;
         t = FIELD_DP64(t, ID_AA64ISAR1, FCMA, 1);
+        t = FIELD_DP64(t, ID_AA64ISAR1, APA, 1); /* PAuth, architected only */
+        t = FIELD_DP64(t, ID_AA64ISAR1, API, 0);
+        t = FIELD_DP64(t, ID_AA64ISAR1, GPA, 1);
+        t = FIELD_DP64(t, ID_AA64ISAR1, GPI, 0);
         cpu->isar.id_aa64isar1 = t;
 
         t = cpu->isar.id_aa64pfr0;