函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\e820.c Create Date:2022-07-27 08:43:10
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：The "mem=nopentium" boot option disables 4MB page tables on 32-bit kernels:

函数原型：static int __init parse_memopt(char *p)

返回类型：int

参数：

类型参数名称
char *p
874  如果非p则返回:负EINVAL
877  如果非字符串比较则
879  setup_clear_cpu_cap(Page Size Extensions )
880  返回:0
887  userdef等于1
888  mem_size等于memparse - parse a string with mem suffixes into a number*@ptr: Where parse begins*@retptr: (output) Optional pointer to next char after parse completes* Parses a string into a number. The number stored at @ptr is
891  如果mem_size恒等于0则返回:负EINVAL
894  Remove a range of memory from the E820 table:
897  max_mem_size等于mem_size
900  返回:0