函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\intel.c Create Date:2022-07-27 08:57:37
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：check_mpx_erratum

函数原型：void check_mpx_erratum(struct cpuinfo_x86 *c)

返回类型：void

参数：

类型参数名称
struct cpuinfo_x86 *c
50  如果Just in case our CPU detection goes bad, or you have a weird system,* allow a way to override the automatic disabling of MPX.则返回
63  如果cpu_has(c, Memory Protection Extension )且非cpu_has(c, Supervisor Mode Execution Protection )则
64  setup_clear_cpu_cap(Memory Protection Extension )
65  打印警告信息("x86/mpx: Disabling MPX since SMEP not present\n")
调用者
名称描述
early_init_intel
setup_disable_smep