diff --git a/xtoskrnl/hl/x86/pic.c b/xtoskrnl/hl/x86/pic.c
index 8d7b9e3..f0fa4f0 100644
--- a/xtoskrnl/hl/x86/pic.c
+++ b/xtoskrnl/hl/x86/pic.c
@@ -10,6 +10,21 @@
 #include <xtos.h>
 
 
+/**
+ * Clears all errors on the APIC.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTAPI
+VOID
+HlClearApicErrors()
+{
+    /* Clear APIC errors */
+    HlWriteApicRegister(APIC_ESR, 0);
+}
+
 /**
  * Disables the legacy 8259 Programmable Interrupt Controller (PIC).
  *
@@ -17,9 +32,9 @@
  *
  * @since XT 1.0
  */
-XTCDECL
+XTAPI
 VOID
-HlDisablePic(VOID)
+HlDisableLegacyPic()
 {
     HlIoPortOutByte(PIC1_DATA_PORT, 0xFF);
     HlIoPortOutByte(PIC2_DATA_PORT, 0xFF);
@@ -51,6 +66,21 @@ HlReadApicRegister(IN APIC_REGISTER Register)
     }
 }
 
+/**
+ * Signals to the APIC that handling an interrupt is complete.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTAPI
+VOID
+HlSendEoi()
+{
+    /* Send APIC EOI */
+    HlWriteApicRegister(APIC_EOI, 0);
+}
+
 /**
  * Writes to the APIC register.
  *
diff --git a/xtoskrnl/includes/amd64/hli.h b/xtoskrnl/includes/amd64/hli.h
index 1e07920..681b94f 100644
--- a/xtoskrnl/includes/amd64/hli.h
+++ b/xtoskrnl/includes/amd64/hli.h
@@ -13,14 +13,22 @@
 
 
 /* HAL library routines forward references */
-XTCDECL
+XTAPI
 VOID
-HlDisablePic(VOID);
+HlClearApicErrors();
+
+XTAPI
+VOID
+HlDisableLegacyPic();
 
 XTFASTCALL
 ULONG
 HlReadApicRegister(IN APIC_REGISTER Register);
 
+XTAPI
+VOID
+HlSendEoi();
+
 XTFASTCALL
 VOID
 HlWriteApicRegister(IN APIC_REGISTER Register,
diff --git a/xtoskrnl/includes/i686/hli.h b/xtoskrnl/includes/i686/hli.h
index 4c5bcf5..a57cd62 100644
--- a/xtoskrnl/includes/i686/hli.h
+++ b/xtoskrnl/includes/i686/hli.h
@@ -13,14 +13,22 @@
 
 
 /* HAL library routines forward references */
-XTCDECL
+XTAPI
 VOID
-HlDisablePic(VOID);
+HlClearApicErrors();
+
+XTAPI
+VOID
+HlDisableLegacyPic();
 
 XTFASTCALL
 ULONG
 HlReadApicRegister(IN APIC_REGISTER Register);
 
+XTAPI
+VOID
+HlSendEoi();
+
 XTFASTCALL
 VOID
 HlWriteApicRegister(IN APIC_REGISTER Register,
diff --git a/xtoskrnl/ke/amd64/krnlinit.c b/xtoskrnl/ke/amd64/krnlinit.c
index a89b80a..1ef5bb5 100644
--- a/xtoskrnl/ke/amd64/krnlinit.c
+++ b/xtoskrnl/ke/amd64/krnlinit.c
@@ -71,7 +71,7 @@ KepInitializeMachine(VOID)
     HlIoPortOutByte(0x3F6, 0);
 
     /* Disable the legacy PIC */
-    HlDisablePic();
+    HlDisableLegacyPic();
 
     /* Initialize frame buffer */
     HlInitializeFrameBuffer();
diff --git a/xtoskrnl/ke/i686/krnlinit.c b/xtoskrnl/ke/i686/krnlinit.c
index 78c01c5..7e904ed 100644
--- a/xtoskrnl/ke/i686/krnlinit.c
+++ b/xtoskrnl/ke/i686/krnlinit.c
@@ -71,7 +71,7 @@ KepInitializeMachine(VOID)
     HlIoPortOutByte(0x3F6, 0);
 
 	/* Disable the legacy PIC */
-    HlDisablePic();
+    HlDisableLegacyPic();
 
     /* Initialize frame buffer */
     HlInitializeFrameBuffer();