x86/cpufeature: Provide helper to set bugs bits

Will be used in a later patch to set bug bits for bugs which need late
detection.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20161209182912.2726-2-bp@alien8.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 1d2b69fc0ceb15baa25f6022b35ace5b55c11de2..d59c15c3defd29883aec144d88891628989a7bcb 100644 (file)
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -204,6 +204,7 @@ static __always_inline __pure bool _static_cpu_has(u16 bit)
 
 #define static_cpu_has_bug(bit)                static_cpu_has((bit))
 #define boot_cpu_has_bug(bit)          cpu_has_bug(&boot_cpu_data, (bit))
+#define boot_cpu_set_bug(bit)          set_cpu_cap(&boot_cpu_data, (bit))
 
 #define MAX_CPU_FEATURES               (NCAPINTS * 32)
 #define cpu_have_feature               boot_cpu_has