Passing Through a Nvidia RTX 2070 Super GPU

Tutorial for passing through a Nvidia RTX graphics card to a Windows 10 virtual machine using a modified VBIOS

Recently I replaced my old NEC MultiSync 2690 HD screen for a HP DreamColor wide gamut screen with a 2560 x 1440 pixel resolution. The Nvidia GTX 970 GPU I used, though still perfectly capable at HD resolution, is likely to get challenged by higher resolutions. Moreover, the new Nvidia Studio driver doesn’t support models before the Geforce 1000 series, and I do want the 30 bpp (bit-per-pixel) support that this driver provides. Time for an upgrade – the Gigabyte RTX 2070 Super GPU.

This post is about passing through a Nvidia RTX 2070 Super GPU or any other modern Nvidia GPU to a Windows 10 guest. Continue reading “Passing Through a Nvidia RTX 2070 Super GPU”

Windows 10 VFIO Passthrough Configuration

I’ve been tweaking my configuration for my needs and it performs very well. As a reference, I’m posting my:

    • hardware configuration
    • Linux distro, kernel, etc.
    • Windows VM configuration (XML)

Continue reading “Windows 10 VFIO Passthrough Configuration”

Creating a Windows 10 kvm VM on the AMD Ryzen 9 3900X using Qemu 4.0 and VGA Passthrough

Last updated: June 19, 2021

Introduction

I’ve already written a detailed tutorial on Windows 10 kvm VGA passthrough based on QEMU version 2.11. Years have passed and recent distributions like Ubuntu 20.04, Linux Mint 20, or Manjaro come with QEMU 4.0, 4.2 or 5.1.

A lot has happened since version 2.11. QEMU 4.0 includes numerous changes and improvements such as trim support in the virtio-blk driver, pcie-root-port with PCIe 4.0 support (with Q35-4.0 machine type), as well as improved audio. Continue reading “Creating a Windows 10 kvm VM on the AMD Ryzen 9 3900X using Qemu 4.0 and VGA Passthrough”

Upgrading my PC to an AMD Ryzen 9 3900X System – Benchmarks

It wasn’t easy this time. Don’t get me wrong – the VFIO passthrough part, though challenging in some ways, went quite well. All in all I’m pleased now with the results. Here the Passmark 9.0 benchmark as uploaded onto their database (for more details, click the frame below):

PassMark Rating

Continue reading “Upgrading my PC to an AMD Ryzen 9 3900X System – Benchmarks”

Upgrading my PC to an AMD Ryzen 9 3900X System

Introduction

I’ve been contemplating a PC upgrade for more than a year (see my post here). At first I considered staying with Intel and getting an i9-9900K CPU with integrated GPU on a Z390 motherboard.

Along came the AMD Ryzen 9 3900X that topped the benchmarks, including the Adobe Lightroom and Photoshop benchmarks (to be precise, it ranked #4 in the Adobe Lightroom benchmark, and a narrow #1 in the Adobe Photoshop benchmark). These good news about the AMD Ryzen 3900X were soon followed by reports about BIOS issues and VFIO incompatibility. At the very least, it looked like VGA passthrough was more challenging.

Then I read Bryan Steiner’s GPU passthrough tutorial for the AMD Ryzen 9 3900X and an Ubuntu-based Pop!_OS Linux host. Several users on the VFIO Reddit forum reported successful VFIO VGA passthrough with the AMD Ryzen 9. Continue reading “Upgrading my PC to an AMD Ryzen 9 3900X System”

Impact of Spectre and Meltdown Protection on Virtual Machine Performance

A year ago I wrote about the 2D graphics performance impact of the Windows 10 (1803) update inside a virtual machine. As it turned out, the performance impact was related to the Spectre vulnerability patch that Microsoft had introduced. However, the same patch had practically no performance impact on a Windows 10 bare-metal installation.

Time has passed and I wanted to see if there has been any progress. Right now I’m running Windows 10 (1903) with Nvidia driver release 431.36. Windows 10 is up-to-date, Nvidia however already offers a newer version (431.60). Continue reading “Impact of Spectre and Meltdown Protection on Virtual Machine Performance”

Blacklisting Graphics Driver

When running a VM with GPU passthrough, that GPU should be bound to the VFIO driver. To make this happen, we need to prevent the regular graphics driver from binding to the passthrough GPU and instead bind the vfio-pci driver.

The most common way to do this is by blacklisting the graphics driver. This works in most cases, but what if you need the graphics driver for another GPU, e.g. the host GPU? Continue reading “Blacklisting Graphics Driver”

Creating a Windows 10 Virtual Machine Using the Virtual Machine Manager (virt-manager)

March 29. 2020 edit: Recently I published a tutorial using Virtual Machine Manager. You can find it here: Creating a Windows 10 VM on the AMD Ryzen 9 3900X using Qemu 4.0 and VGA Passthrough.

Before you get your hopes high, this post is not (yet?) a tutorial on creating a Windows 10 virtual machine using the Virtual Machine Manager (virt-manager) GUI. It should have been, though. I spent the better part of a week trying to configure and install a Windows 10 VM that delivers the performance that I’m used to.

As it turns out, it was a failure. Don’t get me wrong, I did manage to configure and run Windows using virt-manager and virsh. I even installed it multiple times, changing the configuration to what I hoped would improve performance. But whatever I tried, I never got even near the speed and snappiness that I achieve by following my tutorial using a start script.

Continue reading “Creating a Windows 10 Virtual Machine Using the Virtual Machine Manager (virt-manager)”

New PC Build

Back in 2012 I built a PC around the Intel i7 3930K 6-core/12HT processor which I have been using ever since. While it’s still a strong PC, especially with the upgrades (GPU, SSD) I made, I’m starting to feel that editing photos isn’t as snappy as it used to be. I am also curious in how well the new generation of CPUs lend themselves to VGA passthrough. In short, I’m considering building a new PC. Continue reading “New PC Build”

Linux Virtual Gaming Machine

You may wonder what’s wrong with this fellow (meaning me, the author). Has he completely lost his mind when he proposes a Linux virtual gaming machine? Before you discredit the idea, let me explain. Continue reading “Linux Virtual Gaming Machine”