x86: Add straight-line-speculation mitigation

[platform/kernel/linux-rpi.git] / arch / x86 / include / asm / linkage.h

diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index ebddec2..0309079 100644 (file)
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -18,9 +18,19 @@
 #define __ALIGN_STR    __stringify(__ALIGN)
 #endif
 
+#ifdef CONFIG_SLS
+#define RET    ret; int3
+#else
+#define RET    ret
+#endif
+
 #else /* __ASSEMBLY__ */
 
+#ifdef CONFIG_SLS
+#define ASM_RET        "ret; int3\n\t"
+#else
 #define ASM_RET        "ret\n\t"
+#endif
 
 #endif /* __ASSEMBLY__ */