stos/amd64: cpu: Add exception handling groundwork

Signed-off-by: Chloe M. <chloe@mensia.org>
2026-06-23 19:11:14 +00:00
parent 27af606ba2
commit b6d4a1c963
8 changed files with 401 additions and 2 deletions
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2026, Chloe M.
+ * Provided under the BSD-3 clause.
+ *
+ * Description: Trap handling
+ * Author:      Chloe M.
+ */
+
+#ifndef _MACHINE_TRAP_H_
+#define _MACHINE_TRAP_H_ 1
+
+#include <stdef.h>
+#include <machine/frame.h>
+
+#define TRAP_DIVERR     0x00        /* Divide error */
+#define TRAP_DBG        0x01        /* Debug exception */
+#define TRAP_NMI        0x02        /* Non-maskable interrupt */
+#define TRAP_BP         0x03        /* Breakpoint */
+#define TRAP_OF         0x04        /* Overflow */
+#define TRAP_BR         0x05        /* BOUND range exceeded */
+#define TRAP_UD         0x06        /* Undefined opcode */
+#define TRAP_NM         0x07        /* No math coprocessor */
+#define TRAP_DF         0x08        /* Double fault */
+#define TRAP_CPR        0x09        /* Reserved */
+#define TRAP_TS         0x0A        /* Invalid TSS */
+#define TRAP_NP         0x0B        /* Segment not present */
+#define TRAP_SS         0x0C        /* Stack segment fault */
+#define TRAP_GP         0x0D        /* General protection fault */
+#define TRAP_PF         0x0E        /* Page fault */
+
+/*
+ * Used for dispatching traps
+ *
+ * @Frame: Trap-frame associated with trap
+ */
+VOID MdTrapDispatch(TRAP_FRAME *Frame);
+
+#endif  /* !_MACHINE_TRAP_H_ */