diff --git a/hw/intc/arm_gicv3_cpuif.c b/hw/intc/arm_gicv3_cpuif.c
index 3fe5de8ad7..7fbc36ff41 100644
--- a/hw/intc/arm_gicv3_cpuif.c
+++ b/hw/intc/arm_gicv3_cpuif.c
@@ -997,7 +997,7 @@ static uint64_t icc_iar0_read(CPUARMState *env, const ARMCPRegInfo *ri)
         intid = icc_hppir0_value(cs, env);
     }
 
-    if (!(intid >= INTID_SECURE && intid <= INTID_SPURIOUS)) {
+    if (!gicv3_intid_is_special(intid)) {
         icc_activate_irq(cs, intid);
     }
 
@@ -1020,7 +1020,7 @@ static uint64_t icc_iar1_read(CPUARMState *env, const ARMCPRegInfo *ri)
         intid = icc_hppir1_value(cs, env);
     }
 
-    if (!(intid >= INTID_SECURE && intid <= INTID_SPURIOUS)) {
+    if (!gicv3_intid_is_special(intid)) {
         icc_activate_irq(cs, intid);
     }
 
diff --git a/hw/intc/gicv3_internal.h b/hw/intc/gicv3_internal.h
index 70f34ee495..b9c37453b0 100644
--- a/hw/intc/gicv3_internal.h
+++ b/hw/intc/gicv3_internal.h
@@ -411,6 +411,19 @@ FIELD(MAPC, RDBASE, 16, 32)
 
 /* Functions internal to the emulated GICv3 */
 
+/**
+ * gicv3_intid_is_special:
+ * @intid: interrupt ID
+ *
+ * Return true if @intid is a special interrupt ID (1020 to
+ * 1023 inclusive). This corresponds to the GIC spec pseudocode
+ * IsSpecial() function.
+ */
+static inline bool gicv3_intid_is_special(int intid)
+{
+    return intid >= INTID_SECURE && intid <= INTID_SPURIOUS;
+}
+
 /**
  * gicv3_redist_update:
  * @cs: GICv3CPUState for this redistributor