Provide implementation for HL::Irq

2026-03-27 13:00:13 +01:00
parent 64b5de98c8
commit a64aa83eb8
2 changed files with 88 additions and 0 deletions
--- a/xtoskrnl/hl/amd64/irq.cc
+++ b/xtoskrnl/hl/amd64/irq.cc
@@ -0,0 +1,44 @@
+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            xtoskrnl/hl/amd64/irq.cc
+ * DESCRIPTION:     Interrupts support for amd64 architecture
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ *                  Aiken Harris <harraiken91@gmail.com>
+ */
+
+#include <xtos.hh>
+
+
+/**
+ * Sets new interrupt handler for the existing IDT entry.
+ *
+ * @param HalVector
+ *        Supplies the HAL vector number.
+ *
+ * @param Handler
+ *        Supplies the new interrupt handler.
+ *
+ * @return This routine does not return any value.
+ *
+ * @since XT 1.0
+ */
+XTAPI
+VOID
+HL::Irq::SetInterruptHandler(IN ULONG Vector,
+                             IN PVOID Handler)
+{
+    PKPROCESSOR_BLOCK ProcessorBlock;
+
+    /* Get current processor block */
+    ProcessorBlock = KE::Processor::GetCurrentProcessorBlock();
+
+    /* Update interrupt handler */
+    AR::ProcSup::SetIdtGate(ProcessorBlock->IdtBase,
+                            Vector,
+                            Handler,
+                            KGDT_R0_CODE,
+                            0,
+                            KIDT_ACCESS_RING0,
+                            AMD64_INTERRUPT_GATE);
+}