KVM Windows 10 VM Help (TPM, Secure Boot, VBS, HVCI & IOMMU)

Holemole

New Member
Jul 25, 2026
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So I kinda need some help setting up TPM 2.0, Secure Boot, VBS, HVCI, and IOMMU for my Windows 10 VM.


I’ve already got TPM 2.0 and Secure Boot working, but I haven’t had any luck with the other three.


I tried using:
options kvm_intel nested=1
options kvm ignore_msrs=1

but the VM ends up being slow as a turtle. My main goal is to game on the VM, so I need as much performance as possible.


Is there any way to enable VBS, HVCI, and IOMMU without taking a big performance hit? Someone told me I could “emulate” them, but they didn’t elaborate on what they meant.


I’m also pretty new to all of this, so if I’m missing something obvious or doing something wrong, I’d really appreciate any advice or explanations.


If anyone knows how to get these features working while keeping good performance, I’d really appreciate the help.


Thanks!