函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\perfctr-watchdog.c Create Date:2022-07-27 09:14:27
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:verts an msr to an appropriate reservation bit* returns the bit offset of the event selection register

函数原型:static inline unsigned int nmi_evntsel_msr_to_bit(unsigned int msr)

返回类型:unsigned int

参数:

类型参数名称
unsigned intmsr
78  :CPU vendor 恒等于X86_VENDOR_HYGON
79  :CPU vendor 恒等于X86_VENDOR_AMD
80  如果msr大于等于Fam 15h MSRs 则返回:msrFam 15h MSRs 右移1位
82  返回:msrK7 MSRs
83  :CPU vendor 恒等于X86_VENDOR_INTEL
84  如果cpu_has( & common cpu data for all cpus , Intel Architectural PerfMon )则返回:msrMSR_ARCH_PERFMON_EVENTSEL0
88  :CPU family 恒等于6
89  返回:msrMSR_P6_EVNTSEL0
90  :CPU family 恒等于11
91  返回:msrMSR_KNC_EVNTSEL0
92  :CPU family 恒等于15
93  返回:msrMSR_P4_BSU_ESCR0
96  返回:0
调用者
名称描述
reserve_evntsel_nmi
release_evntsel_nmi