Mac OSXとLinuxでqemuを使用したネスト仮想化（Intel VT-x）

#!/bin/bash

# Check if VT-x (VMX) is supported by the CPU
cpu_features=$(sysctl -a | grep machdep.cpu.features)
if [[ $cpu_features == *"VMX"* ]]; then
    echo "VT-x (VMX) is supported by the CPU"
else
    echo "VT-x (VMX) is not supported by the CPU"
fi

# Check if nested virtualization is enabled on the host
nested=$(sysctl -a | grep machdep.cpu.extfeatures)
if [[ $nested == *"VMX"* ]]; then
    echo "Nested virtualization is enabled on the host"
else
    echo "Nested virtualization is not enabled on the host"
fi

# Check if HVF (Apple Hypervisor Framework) is being used
hypervisor=$(sysctl -n kern.hv_support)
if [[ $hypervisor == "1" ]]; then
    echo "HVF (Apple Hypervisor Framework) is being used"
else
    echo "HVF (Apple Hypervisor Framework) is not being used"
fi

# Check if VT-x is exposed to the guest VM
qemu_capabilities=$(qemu-system-x86_64 -cpu help)
if [[ $qemu_capabilities == *"vmx"* ]]; then
    echo "VT-x (VMX) is exposed to the guest VM"
else
    echo "VT-x (VMX) is not exposed to the guest VM"
fi

# Check if nested virtualization is enabled inside the guest VM
guest_capabilities=$(qemu-system-x86_64 -cpu help | grep "vmxvmcs")
if [[ $guest_capabilities == *"vmxvmcs"* ]]; then
    echo "Nested virtualization is enabled inside the guest VM"
else
    echo "Nested virtualization is not enabled inside the guest VM"
fi