函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\mtrr\generic.c Create Date:2022-07-27 09:06:31
Last Modify:2022-05-18 17:45:43 Copyright©Brick
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函数名称：generic_set_all

函数原型：static void generic_set_all(void)

返回类型：void

参数：无

800  local_irq_save(flags)
801  Since we are disabling the cache don't allow any interrupts,* they would run extremely slow and would only increase the pain.* The caller must ensure that local interrupts are disabled and* are reenabled after post_set() has been called.
804  mask等于set_mtrr_state - Set the MTRR state for this CPU.* NOTE: The CPU must already be in a safe state for MTRR changes.* RETURNS: 0 if no changes made, else a mask indicating what was changed.
807  pat_init()
809  post_set()
810  local_irq_restore(flags)
813  以count小于mask的长度乘8循环
814  如果mask按位与0x01则设置内存位
816  mask右移等于1位