函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\vm86_32.c Create Date:2022-07-27 09:40:50
Last Modify:2022-05-22 10:11:03 Copyright©Brick
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函数名称：clear_IF

函数原型：static inline void clear_IF(struct kernel_vm86_regs *regs)

返回类型：void

参数：

类型参数名称
struct kernel_vm86_regs *regs
394  VEFLAGS与等于X86_EFLAGS_VIF的反
调用者
名称描述
set_vflags_longIt is correct to call set_IF(regs) from the set_vflags_** functions. However someone forgot to call clear_IF(regs)* in the opposite case.* After the command sequence CLI PUSHF STI POPF you should* end up with interrupts disabled, but you ended up with
set_vflags_short
do_intThere are so many possible reasons for this function to return* VM86_INTx, so adding another doesn't bother me. We can expect* userspace programs to be able to handle it. (Getting a problem* in userspace is always better than an Oops anyway.) [KD]
handle_vm86_fault