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-rw-r--r--arch/x86/kernel/idt.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
new file mode 100644
index 000000000000..3d19cad18aa2
--- /dev/null
+++ b/arch/x86/kernel/idt.c
@@ -0,0 +1,26 @@
+/*
+ * Interrupt descriptor table related code
+ *
+ * This file is licensed under the GPL V2
+ */
+#include <linux/interrupt.h>
+
+#include <asm/desc.h>
+
+/* Must be page-aligned because the real IDT is used in a fixmap. */
+gate_desc idt_table[IDT_ENTRIES] __page_aligned_bss;
+
+#ifdef CONFIG_X86_64
+/* No need to be aligned, but done to keep all IDTs defined the same way. */
+gate_desc debug_idt_table[IDT_ENTRIES] __page_aligned_bss;
+
+struct desc_ptr idt_descr __ro_after_init = {
+ .size = IDT_ENTRIES * 16 - 1,
+ .address = (unsigned long) idt_table,
+};
+
+const struct desc_ptr debug_idt_descr = {
+ .size = IDT_ENTRIES * 16 - 1,
+ .address = (unsigned long) debug_idt_table,
+};
+#endif