write_cr4 139 arch/x86/include/asm/paravirt.h PVOP_VCALL1(cpu.write_cr4, x); write_cr4 120 arch/x86/include/asm/paravirt_types.h void (*write_cr4)(unsigned long); write_cr4 313 arch/x86/kernel/paravirt.c .cpu.write_cr4 = native_write_cr4, write_cr4 1023 arch/x86/xen/enlighten_pv.c .write_cr4 = xen_write_cr4,