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 08:42:48
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：e820__mapped_any

函数原型：bool e820__mapped_any(u64 start, u64 end, enum e820_type type)

返回类型：bool

参数：

类型参数名称
u64start
u64end
enum e820_typetype
102  返回:This function checks if any part of the range is mapped* with type.
调用者
名称描述
tboot_probe
l1tf_select_mitigation
early_gart_iommu_checkWith kexec/kdump, if the first kernel doesn't shut down the GART and the* second kernel allocates a different GART region, there might be two* overlapping GART regions present:* - the first still used by the GART initialized in the first kernel.