USER_XSTATE_FX_SW_WORDS   56 arch/x86/include/asm/user.h 		__u64 xstate_fx_sw[USER_XSTATE_FX_SW_WORDS];
USER_XSTATE_FX_SW_WORDS   48 arch/x86/include/asm/xsave.h extern u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];