I just set up my new Ryzen desktop with Gray Wolf’s excellent GPU pass through tutorial. I’m passing through a Radeon RX 580 with near-native performance. My concern, however, is the CPU.
Even though I keep choosing to “pass through” the host CPU, virt-manager keeps reconfiguring the VM’s CPU as an “Opteron G3”. Aside from these CPUs not supporting SMT, I’m concerned that I may be leaving some performance on the table. Is there any way to get KVM/virt-manager to pass the CPU through as a full Ryzen?
I’m on Debian Stretch x64 if it makes a difference…