函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\fpu\internal.h Create Date:2022-07-27 08:28:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Save processor xstate to xsave area.

函数原型：static inline void copy_xregs_to_kernel(struct xregs_state *xstate)

返回类型：void

参数：

类型参数名称
struct xregs_state *xstate
322  mask等于负1
323  lmask等于mask
324  hmask等于mask右移32位
327  WARN_ON_FPU(!Debug flag that can be tested to see whether alternative* instructions were patched in already:)
329  If XSAVES is enabled, it replaces XSAVEOPT because it supports a compact* format and supervisor states in addition to modified optimization in* XSAVEOPT.* Otherwise, if XSAVEOPT is enabled, XSAVEOPT replaces XSAVE because XSAVEOPT(xstate, lmask, hmask, err)
332  WARN_ON_FPU(err)
调用者
名称描述
copy_fpregs_to_fpstateThese must be called with preempt disabled