diff --git a/include/arch/x86/apic.h b/include/arch/x86/apic.h
index 65b48e99..fe4fd3c2 100644
--- a/include/arch/x86/apic.h
+++ b/include/arch/x86/apic.h
@@ -39,6 +39,7 @@
 /* Local APIC definitions */
 #define APIC_ID                0x020
 #define APIC_LVR               0x030
+#define APIC_EOI               0x0b0
 #define APIC_SPIV              0x0f0
 #define APIC_SPIV_APIC_ENABLED 0x00100
 
@@ -59,6 +60,8 @@
 
 #define GET_SIPI_VECTOR(addr) ((_ul((addr)) >> PAGE_SHIFT) & 0xFF)
 
+#define APIC_EOI_SIGNAL 0x0
+
 #ifndef __ASSEMBLY__
 
 enum apic_mode {
@@ -129,6 +132,8 @@ static inline void apic_wait_ready(void) {
         cpu_relax();
 }
 
+static inline void apic_EOI(void) { apic_write(APIC_EOI, APIC_EOI_SIGNAL); }
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* KTF_APIC_H */