[Qemu-discuss] How AMD CPU use qemu to emulate Intel's vmx function?

[zhendewokusi]

Hello
My Host OS support svm，but I want to debug kvm-intel related code.when I provide +vmx option，Guest OS doesn't actually enable vmx.

I tried looking for a solution in the official documentation, but I couldn't find it.

Command:

qemu-system-x86_64 \
    -m 512 \
    -smp 1 \
    -hda kernel.img \
    -enable-kvm \
    -cpu qemu64,+vmx,-svm \
    -nographic \
    -net user,hostfwd=tcp::2222-:22 \
    -net nic

Or are there other ways to enable vmx feature on AMD CPU?