From 5b0eebdb436b3627658ea297fd6a95ede17d306e Mon Sep 17 00:00:00 2001
From: Aiken Harris <harraiken91@gmail.com>
Date: Mon, 8 Jun 2026 20:15:18 +0200
Subject: [PATCH] Initialize system interrupt handlers

---
 xtoskrnl/includes/ke/krnlinit.hh |  1 +
 xtoskrnl/ke/amd64/krnlinit.cc    | 22 ++++++++++++++++++++++
 xtoskrnl/ke/i686/krnlinit.cc     | 22 ++++++++++++++++++++++
 3 files changed, 45 insertions(+)

diff --git a/xtoskrnl/includes/ke/krnlinit.hh b/xtoskrnl/includes/ke/krnlinit.hh
index 351890fba..0984ff079 100644
--- a/xtoskrnl/includes/ke/krnlinit.hh
+++ b/xtoskrnl/includes/ke/krnlinit.hh
@@ -24,6 +24,7 @@ namespace KE
 
         private:
             STATIC XTAPI VOID BootstrapKernel(VOID);
+            STATIC XTAPI VOID InitializeInterruptHandlers(VOID);
             STATIC XTAPI VOID InitializeKernel(VOID);
     };
 }
diff --git a/xtoskrnl/ke/amd64/krnlinit.cc b/xtoskrnl/ke/amd64/krnlinit.cc
index d2d74388b..e71e4e77f 100644
--- a/xtoskrnl/ke/amd64/krnlinit.cc
+++ b/xtoskrnl/ke/amd64/krnlinit.cc
@@ -51,6 +51,9 @@ KE::KernelInit::BootstrapApplicationProcessor(IN PPROCESSOR_START_BLOCK StartBlo
     /* Initialize per-CPU spin lock queues */
     KE::SpinLock::InitializeLockQueues();
 
+    /* Initialize interrupt handlers */
+    InitializeInterruptHandlers();
+
     /* Lower to APC runlevel */
     KE::RunLevel::LowerRunLevel(APC_LEVEL);
 
@@ -96,6 +99,9 @@ KE::KernelInit::BootstrapKernel(VOID)
     KE::SpinLock::InitializeAllLocks();
     KE::SpinLock::InitializeLockQueues();
 
+    /* Initialize interrupt handlers */
+    InitializeInterruptHandlers();
+
     /* Lower to APC runlevel */
     KE::RunLevel::LowerRunLevel(APC_LEVEL);
 
@@ -123,6 +129,22 @@ KE::KernelInit::BootstrapKernel(VOID)
     KE::Crash::HaltSystem();
 }
 
+/**
+ * Initializes and registers the core system interrupt handlers.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTAPI
+VOID
+KE::KernelInit::InitializeInterruptHandlers(VOID)
+{
+    /* Register interrupt handlers */
+    HL::Irq::RegisterSystemInterruptHandler(APIC_VECTOR_DPC, KE::Dispatcher::HandleDispatchInterrupt);
+    HL::Irq::RegisterSystemInterruptHandler(APIC_VECTOR_IPI, KE::Ipi::HandleIpiInterrupt);
+}
+
 /**
  * This routine initializes XT kernel.
  *
diff --git a/xtoskrnl/ke/i686/krnlinit.cc b/xtoskrnl/ke/i686/krnlinit.cc
index 6cc588720..1e1aa192a 100644
--- a/xtoskrnl/ke/i686/krnlinit.cc
+++ b/xtoskrnl/ke/i686/krnlinit.cc
@@ -51,6 +51,9 @@ KE::KernelInit::BootstrapApplicationProcessor(IN PPROCESSOR_START_BLOCK StartBlo
     /* Initialize per-CPU spin lock queues */
     KE::SpinLock::InitializeLockQueues();
 
+    /* Initialize interrupt handlers */
+    InitializeInterruptHandlers();
+
     /* Lower to APC runlevel */
     KE::RunLevel::LowerRunLevel(APC_LEVEL);
 
@@ -96,6 +99,9 @@ KE::KernelInit::BootstrapKernel(VOID)
     KE::SpinLock::InitializeAllLocks();
     KE::SpinLock::InitializeLockQueues();
 
+    /* Initialize interrupt handlers */
+    InitializeInterruptHandlers();
+
     /* Lower to APC runlevel */
     KE::RunLevel::LowerRunLevel(APC_LEVEL);
 
@@ -123,6 +129,22 @@ KE::KernelInit::BootstrapKernel(VOID)
     KE::Crash::HaltSystem();
 }
 
+/**
+ * Initializes and registers the core system interrupt handlers.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTAPI
+VOID
+KE::KernelInit::InitializeInterruptHandlers(VOID)
+{
+    /* Register interrupt handlers */
+    HL::Irq::RegisterSystemInterruptHandler(APIC_VECTOR_DPC, KE::Dispatcher::HandleDispatchInterrupt);
+    HL::Irq::RegisterSystemInterruptHandler(APIC_VECTOR_IPI, KE::Ipi::HandleIpiInterrupt);
+}
+
 /**
  * This routine initializes XT kernel.
  *