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-rw-r--r--arch/x86/Kconfig14
1 files changed, 13 insertions, 1 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 8910b09b5601..976dd6b532bf 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -473,6 +473,18 @@ config RETPOLINE
branches. Requires a compiler with -mindirect-branch=thunk-extern
support for full protection. The kernel may run slower.
+config CC_HAS_SLS
+ def_bool $(cc-option,-mharden-sls=all)
+
+config SLS
+ bool "Mitigate Straight-Line-Speculation"
+ depends on CC_HAS_SLS && X86_64
+ default n
+ help
+ Compile the kernel with straight-line-speculation options to guard
+ against straight line speculation. The kernel image might be slightly
+ larger.
+
config X86_CPU_RESCTRL
bool "x86 CPU resource control support"
depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD)
@@ -1952,7 +1964,7 @@ config EFI
config EFI_STUB
bool "EFI stub support"
- depends on EFI && !X86_USE_3DNOW
+ depends on EFI
depends on $(cc-option,-mabi=ms) || X86_32
select RELOCATABLE
help