diff --git a/qemu/target/arm/cpu64.c b/qemu/target/arm/cpu64.c
index b5f31d9c..9d89163c 100644
--- a/qemu/target/arm/cpu64.c
+++ b/qemu/target/arm/cpu64.c
@@ -347,6 +347,14 @@ static void aarch64_max_initfn(struct uc_struct *uc, Object *obj, void *opaque)
     u = FIELD_DP32(u, ID_MMFR3, PAN, 2); /* ATS1E1 */
     cpu->id_mmfr3 = u;
 
+    u = cpu->isar.id_aa64dfr0;
+    u = FIELD_DP64(u, ID_AA64DFR0, PMUVER, 5); /* v8.4-PMU */
+    cpu->isar.id_aa64dfr0 = u;
+
+    u = cpu->isar.id_dfr0;
+    u = FIELD_DP32(u, ID_DFR0, PERFMON, 5); /* v8.4-PMU */
+    cpu->isar.id_dfr0 = u;
+
     // Unicorn: we lie and enable them anyway
     /*
      * FIXME: We do not yet support ARMv8.2-fp16 for AArch32 yet,