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 08:43:07
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Find the ranges of physical addresses that do not correspond to* E820 RAM areas and register the corresponding pages as 'nosave' for* hibernation (32-bit) or software suspend and suspend to RAM (64-bit)

函数原型：void __init e820__register_nosave_regions(unsigned long limit_pfn)

返回类型：void

参数：

类型参数名称
unsigned longlimit_pfn
742  pfn等于0
744  以i小于nr_entries循环
745  entry等于entries[i]
747  如果pfn小于PFN_UP(addr)则register_nosave_region(pfn, PFN_UP(addr))
750  pfn等于PFN_DOWN(addr + size)
752  如果type不等于E820_TYPE_RAM且type不等于E820_TYPE_RESERVED_KERN则register_nosave_region(PFN_UP(addr), pfn)
755  如果pfn大于等于limit_pfn则退出
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