[blattimwind]

Most anti-cheats and some "DRM solutions" do not allow you to run inside a VM, trying to mask the fact you do might be enough to get banned. Even with PCI passthru you can't expect full performance (CPU is also still virtualized).

It's much simpler to just have a second PC/laptop or dual-boot (less secure).

[alias_neo]

Simpler in a technical sense, but given high end gaming PC's run into the thousands of £s, It's not really the right solution to just buy another machine; the better choice is probably to not play their game (in all senses of the phrase).

Maybe a viable option is to hot swap your drives, and use something with firmware you can sign personally and verify on boot.

[dharmab]

> CPU is also still virtualized

IOMMU also grants the guest hardware access to the CPU, although it does have to be shared between the host and guests.

[gruez]

>or dual-boot (less secure).

There shouldn't be any risks to that if your main OS is encrypted and the keys are sealed by a TPM.

[blattimwind]

The untrusted system could flash malicious firmware to a component with DMA (e.g. GPU VBIOS) to infect the second system.