I'm trying to address speculative execution side-channel vulnerabilities like Spectre and Meltdown, following a Microsoft guidance flowchart. There's a specific part that asks if I'm running Hyper-V or Hyper-V containers. My situation is that I'm working with a Hyper-V VM, but I'm torn on whether to answer 'yes' or 'no' to that question. My instinct is to say 'no' since the VM is only acting as a guest and not hosting other workloads. But I wonder if I'm misinterpreting this; perhaps the correct answer is 'yes' because the VM recognizes it's operating within a Hyper-V environment. The documentation doesn't clarify what constitutes 'running Hyper-V', and I'm struggling to find anyone else who's faced this dilemma.
2 Answers
It looks like the question is really focused on the host machine. If your VMs aren't acting as Hyper-V hosts, then you probably should say 'no'—especially since it sounds like you're not doing any nested virtualization where you'd be running VMs inside another VM.
This reminds me of older security issues we used to overlook! Anyway, as for your flowchart question, yeah, if you're just running guest VMs and aren't doing any nested setups, 'no' is the safe bet. Just to clarify, it's basically about whether the machine itself is providing Hyper-V services.
Thanks for your input! That makes sense, I'll stick with 'no'.