diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 1e6cff5814fa..44f1ed42fdf2 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -203,7 +203,7 @@ void __init native_init_IRQ(void)
 		set_intr_gate(i, interrupt[i - FIRST_EXTERNAL_VECTOR]);
 	}
 
-	if (!acpi_ioapic && !of_ioapic)
+	if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs())
 		setup_irq(2, &irq2);
 
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index bf7ef5ce29df..0fa29609b2c4 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -68,6 +68,8 @@ static struct irqaction irq0  = {
 
 void __init setup_default_timer_irq(void)
 {
+	if (!nr_legacy_irqs())
+		return;
 	setup_irq(0, &irq0);
 }