函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\aperture_64.c Create Date:2022-07-27 09:52:17
Last Modify:2020-03-17 10:38:51 Copyright©Brick
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函数名称：exclude_from_core

函数原型：static void __init exclude_from_core(u64 aper_base, unsigned int aper_order)

返回类型：void

参数：

类型参数名称
u64aper_base
unsigned intaper_order
80  If the first kernel maps the aperture over e820 RAM, the kdump kernel will* use the same range because it will remain configured in the northbridge.* Trying to dump this area via /proc/vmcore may crash the machine, so exclude* it from vmcore.等于aper_base右移PAGE_SHIFT determines the page size 位
81  If the first kernel maps the aperture over e820 RAM, the kdump kernel will* use the same range because it will remain configured in the northbridge.* Trying to dump this area via /proc/vmcore may crash the machine, so exclude* it from vmcore.等于32乘1024乘1024左移aper_order位右移PAGE_SHIFT determines the page size 位
83  WARN_ON(register_oldmem_pfn_is_ram( & gart_mem_pfn_is_ram))
86  WARN_ON(register_mem_pfn_is_ram( & gart_mem_pfn_is_ram))
调用者
名称描述
gart_iommu_hole_init