x86/idt: Move early IDT handler setup to IDT code
The early IDT handler setup is done in C entry code on 64-bit kernels and in
ASM entry code on 32-bit kernels.
Move the 64-bit variant to the IDT code so it can be shared with 32-bit
in the next step.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064958.679561404@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index 33aff45..5a3cdeb 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -504,6 +504,15 @@ static inline void load_current_idt(void)
load_idt((const struct desc_ptr *)&idt_descr);
}
+extern void idt_setup_early_handler(void);
+extern void idt_setup_early_traps(void);
+
+#ifdef CONFIG_X86_64
+extern void idt_setup_early_pf(void);
+#else
+static inline void idt_setup_early_pf(void) { }
+#endif
+
extern void idt_invalidate(void *addr);
#endif /* _ASM_X86_DESC_H */
