函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\processor.h Create Date:2022-07-27 06:39:09
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Friendlier CR3 helpers.

函数原型：static inline unsigned long read_cr3_pa(void)

返回类型：unsigned long

参数：无

241  返回:Careful! CR3 contains more than just an address. You probably want* read_cr3_pa() instead.按位与Mask off the address space ID and SME encryption bits.
调用者
名称描述
nmi_uaccess_okayBlindly accessing user memory from NMI context can be dangerous* if we're in the middle of switching the current user task or* switching the loaded mm. It can also be dangerous if we* interrupted some kernel code that was temporarily using a* different mm.