native_read_cr4_safe 314 arch/x86/kernel/paravirt.c .read_cr4_safe = native_read_cr4_safe, native_read_cr4_safe 1213 arch/x86/xen/enlighten.c .read_cr4_safe = native_read_cr4_safe, native_read_cr4_safe 282 include/asm-x86/system.h #define read_cr4_safe() (native_read_cr4_safe())