So, there are several ways to handle mouse+keyboard that I&#x27;ve seen.<p>1) Virtualized Mouse+Keyboard.  If you&#x27;ve ever used a VM before, this is what you most likely are familiar with.  You click within the VM&#x27;s window, it captures your mouse and keyboard, and then everything is like normal within the VM.  To release, you hit some special key combo and your mouse+keyboard is released back to the host.  The VGA Passthrough setup that we&#x27;re talking about doesn&#x27;t normally support this method in QEMU&#x2F;KVM, but you can hack it in.  For me, it works as expected, except the mouse+keyboard randomly stop working for brief periods of time every so often.  So... not great.<p>2) Synergy.  I&#x27;ve seen this method mentioned a lot, so I guess it works.  I haven&#x27;t tried it.  I&#x27;ve heard there are occasional issues, and sometimes Synergy will stop working so you need some kind of fallback method to get back into the Windows VM to get it working again.  Probably this method plus method 1 above as a backup will work well.<p>3) USB passthrough.  You could get a second mouse+keyboard, and then use USB filtering to pass them through to the VM.  I haven&#x27;t tried it; it probably works fine if you&#x27;re okay with having two mouse+keyboard sets on your desk.<p>4) IOMMU USB passthrough.  Similar to #3, but you use IOMMU to give an entire USB hub to the VM.  This is likely to have the least number of issues, as it gives direct and exclusive control of a USB hub to the VM.  Whether you can do it or not depends on the USB hub configuration on your mobo or whether you feel like adding a USB PCI&#x2F;PCI-E card.<p>5) KVM + USB passthrough.  Use a KVM and then USB passthrough of some kind (#3 or #4 above).<p>6) Steam In-Home Streaming.  Steam In-Home Streaming can be hacked to share the entire desktop of the target machine.  So you could use this to not only handle keyboard+mouse, but also video if you don&#x27;t want a second monitor and&#x2F;or don&#x27;t want to use your existing monitor to switch HDMI&#x2F;DisplayPort.  Since the streaming will be done locally, latency will be very low, but this will burn some CPU&#x2F;GPU resources.  VNC is also an option, but will likely fallover for video games&#x2F;watching videos&#x2F;etc.