4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Peter Zijlstra <pet...@infradead.org>

commit bd89004f6305cbf7352238f61da093207ee518d6 upstream.

The objtool retpoline validation found this indirect jump. Seeing how
it's on CPU bringup before we run userspace it should be safe, annotate
it.

Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org>
Reviewed-by: David Woodhouse <d...@amazon.co.uk>
Acked-by: Thomas Gleixner <t...@linutronix.de>
Acked-by: Josh Poimboeuf <jpoim...@redhat.com>
Cc: Andy Lutomirski <l...@kernel.org>
Cc: Arjan van de Ven <ar...@linux.intel.com>
Cc: Borislav Petkov <b...@alien8.de>
Cc: Dan Williams <dan.j.willi...@intel.com>
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: David Woodhouse <dw...@infradead.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Signed-off-by: Ingo Molnar <mi...@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 arch/x86/kernel/head_64.S |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -23,6 +23,7 @@
 #include <asm/nops.h>
 #include "../entry/calling.h"
 #include <asm/export.h>
+#include <asm/nospec-branch.h>
 
 #ifdef CONFIG_PARAVIRT
 #include <asm/asm-offsets.h>
@@ -134,6 +135,7 @@ ENTRY(secondary_startup_64)
 
        /* Ensure I am executing from virtual addresses */
        movq    $1f, %rax
+       ANNOTATE_RETPOLINE_SAFE
        jmp     *%rax
 1:
        UNWIND_HINT_EMPTY


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