函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\ebda.c Create Date:2022-07-27 08:27:39
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：reserve_bios_regions

函数原型：void __init reserve_bios_regions(void)

返回类型：void

参数：无

66  如果非reserve_bios_regions则返回
74  bios_start等于__va(This function reserves all conventional PC system BIOS related* firmware memory areas (some of which are data, some of which* are code), that must not be used by the kernel as available* RAM)
75  bios_start左移等于10位
82  如果bios_start小于128K, less than this is insane 或bios_start大于640K, absolute maximum 则bios_start等于640K, absolute maximum
86  ebda_start等于取EBDA地址
93  如果ebda_start大于等于128K, less than this is insane 且ebda_start小于bios_start则bios_start等于ebda_start
97  准备内存空间
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