函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\common.c Create Date:2022-07-27 08:55:37
Last Modify:2020-03-16 20:28:31 Copyright©Brick
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函数名称：The NOPL instruction is supposed to exist on all CPUs of family >= 6;* unfortunately, that's not true in practice because of early VIA* chips and (more importantly) broken virtualizers that are not easy* to detect

函数原型：static void detect_nopl(void)

返回类型：void

参数：无

1181  setup_clear_cpu_cap(The NOPL (0F 1F) instructions )
调用者
名称描述
early_identify_cpuDo minimum CPU detection early.* Fields really needed: vendor, cpuid_level, family, model, mask,* cache alignment.* The others are not touched to avoid unwanted side effects.* WARNING: this function is only called on the boot CPU. Don't add code