X86_FEATURE_FENCE_SWAPGS_KERNEL 333 arch/x86/entry/calling.h ALTERNATIVE "", "lfence", X86_FEATURE_FENCE_SWAPGS_KERNEL X86_FEATURE_FENCE_SWAPGS_KERNEL 564 arch/x86/kernel/cpu/bugs.c setup_force_cpu_cap(X86_FEATURE_FENCE_SWAPGS_KERNEL);