Merge remote-tracking branch 'lsk/v3.10/topic/configs' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / arch / x86 / kernel / head_64.S

diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index a8368608ab41b30edb83029978651c8ef4bc3650..f2a9a2aa98f31f0a3dced6909c69d243f3f9a4f4 100644 (file)
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -343,6 +343,9 @@ early_idt_handlers:
 ENTRY(early_idt_handler)
        cld
 
+       cmpl $2,(%rsp)          # X86_TRAP_NMI
+       je is_nmi               # Ignore NMI
+
        cmpl $2,early_recursion_flag(%rip)
        jz  1f
        incl early_recursion_flag(%rip)
@@ -405,8 +408,9 @@ ENTRY(early_idt_handler)
        popq %rdx
        popq %rcx
        popq %rax
-       addq $16,%rsp           # drop vector number and error code
        decl early_recursion_flag(%rip)
+is_nmi:
+       addq $16,%rsp           # drop vector number and error code
        INTERRUPT_RETURN
 ENDPROC(early_idt_handler)