函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\cpu\centaur.c Create Date:2022-07-27 08:59:37
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：centaur_detect_vmx_virtcap

函数原型：static void centaur_detect_vmx_virtcap(struct cpuinfo_x86 *c)

返回类型：void

参数：

类型参数名称
struct cpuinfo_x86 *c
126  Access to machine-specific registers (available on 586 and better only)* Note: the rd* operations modify the parameters directly (without using* pointer indirection), this allows gcc to optimize better(MSR_IA32_VMX_PROCBASED_CTLS, vmx_msr_low, vmx_msr_high)
127  msr_ctl等于vmx_msr_high按位或vmx_msr_low
129  如果msr_ctl按位与X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW则set_cpu_cap(c, Intel TPR Shadow )
131  如果msr_ctl按位与X86_VMX_FEATURE_PROC_CTLS_VNMI则set_cpu_cap(c, Intel Virtual NMI )
133  如果msr_ctl按位与X86_VMX_FEATURE_PROC_CTLS_2ND_CTLS则
134  Access to machine-specific registers (available on 586 and better only)* Note: the rd* operations modify the parameters directly (without using* pointer indirection), this allows gcc to optimize better(MSR_IA32_VMX_PROCBASED_CTLS2, vmx_msr_low, vmx_msr_high)
136  msr_ctl2等于vmx_msr_high按位或vmx_msr_low
137  如果msr_ctl2按位与X86_VMX_FEATURE_PROC_CTLS2_VIRT_APIC且msr_ctl按位与X86_VMX_FEATURE_PROC_CTLS_TPR_SHADOW则set_cpu_cap(c, Intel FlexPriority )
140  如果msr_ctl2按位与X86_VMX_FEATURE_PROC_CTLS2_EPT则set_cpu_cap(c, Intel Extended Page Table )
142  如果msr_ctl2按位与X86_VMX_FEATURE_PROC_CTLS2_VPID则set_cpu_cap(c, Intel Virtual Processor ID )
调用者
名称描述
init_centaur