1 files changed, 5 insertions, 0 deletions

diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index 85549e656eeb..194160f6a43f 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -437,6 +437,11 @@ static inline void prefetchw(void *x)
         outb((data), 0x23); \
 } while (0)
 
+static inline void serialize_cpu(void)
+{
+        __asm__ __volatile__ ("cpuid" : : : "ax", "bx", "cx", "dx");
+}
+
 static inline void __monitor(const void *eax, unsigned long ecx,
                 unsigned long edx)
 {