Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\fpu\internal.h Create Date:2022-07-28 07:29:22
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:use_xsave

Proto:static __always_inline __pure bool use_xsave(void)

Type:bool

Parameter:Nothing

68  Return static_cpu_has(XSAVE/XRSTOR/XSETBV/XGETBV instructions )
Caller
NameDescribe
copy_init_fpstate_to_fpregsClear FPU registers by setting them up from* the init fpstate:
save_xstate_epilog
copy_fpregs_to_sigframe
sanitize_restored_xstate
copy_user_to_fpregs_zeroingRestore the extended state if present. Otherwise, restore the FP/SSE state.
__fpu__restore_sig
xstate_sigframe_size