Cargo Features

[dependencies]
x86_vcpu = { version = "0.3.0", default-features = false, features = ["tracing", "vmx", "svm"] }
default = vmx

The vmx feature is set by default whenever x86_vcpu is added without default-features = false somewhere in the dependency tree.

tracing
vmx default
svm

X86_vcpu has 4 features without comments.