Differences

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--- proxmox:gpu_passthrough [2021/06/07 10:12] – peter
+++ proxmox:gpu_passthrough [2023/06/18 18:02] (current) – peter
@@ Line 1: / Line 1: @@
 ====== Proxmox - GPU Passthrough ======
-PCI passthrough allows you to use a physical PCI device (graphics card, network card) inside a VM (KVM virtualization only).
+**PCI passthrough** allows you to use a physical PCI device (graphics card, network card) inside a VM (KVM virtualization only).
 If you "PCI passthrough" a device, the device is not available to the host anymore.
@@ Line 9: / Line 9: @@
 ----
-===== Update Grub =====
+There are multiple steps needed. Do these in the following order.
-SSH directly into the Proxmox server.
+  * [[Proxmox:GPU Passthrough:Configure Proxmox|Configure Proxmox]]
+  * [[Proxmox:GPU Passthrough:Configure VM|Configure VM]]
-Edit /etc/default/grub file.
-Change:
-<file bash /etc/default/grub>
-GRUB_CMDLINE_LINUX_DEFAULT="quiet"
-</file>
-==== For an Intel CPU ====
-<file bash /etc/default/grub>
-GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on"
-</file>
-==== For an AMD CPU ====
-<file bash /etc/default/grub>
-GRUB_CMDLINE_LINUX_DEFAULT="quiet amd_iommu=on"
-</file>
-<WRAP info>
-**NOTE:**  Additional commands may be needed as well in this line, if the passthrough ends up failing.
-For example:
-<code>
-GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction nofb nomodeset video=vesafb:off,efifb:off"
-</code>
-  * Disabling the Framebuffer: **[[https://passthroughpo.st/explaining-csm-efifboff-setting-boot-gpu-manually/|video=vesafb:off,efifb:off]]**.
-  * ACS Override for IOMMU groups:  **[[http://vfio.blogspot.com/2014/08/vfiovga-faq.html|pcie_acs_override=downstream,multifunction]]**.
-</WRAP>
 ----
-When you finished editing /etc/default/grub run this command:
+===== References =====
-<code bash>
+https://pve.proxmox.com/wiki/PCI(e)_Passthrough
-update-grub
-</code>
-----
+https://passthroughpo.st/explaining-csm-efifboff-setting-boot-gpu-manually/
-===== VFIO Modules =====
+https://www.reddit.com/r/VFIO/
-Add a few VFIO modules to your Proxmox system.
-Add the following to the /etc/modules file:
-<file bash /etc/modules>
-vfio
-vfio_iommu_type1
-vfio_pci
-vfio_virqfd
-</file>
-Save and exit.
-----
-===== IOMMU interrupt remapping =====
-Run the following commands:
-<code bash>
-echo "options vfio_iommu_type1 allow_unsafe_interrupts=1" > /etc/modprobe.d/iommu_unsafe_interrupts.conf
-echo "options kvm ignore_msrs=1" > /etc/modprobe.d/kvm.conf
-</code>
-----
-===== Blacklist Drivers =====
-To prevent the Proxmox host system utilizing the GPU(s), some drivers need to be blacklisted.
-<code bash>
-echo "blacklist radeon" >> /etc/modprobe.d/blacklist.conf
-echo "blacklist nouveau" >> /etc/modprobe.d/blacklist.conf
-echo "blacklist nvidia" >> /etc/modprobe.d/blacklist.conf
-</code>
-----
-===== Adding GPU to VFIO =====
-==== Determine the GPU ====
-<code bash>
-lspci -v
-</code>
-returns:
-<code bash>
-:00.0 VGA compatible controller: NVIDIA Corporation GP104 [GeForce GTX 1070] (rev a1) (prog-if 00 [VGA controller])
-:00.1 Audio device: NVIDIA Corporation GP104 High Definition Audio Controller (rev a1)
-</code>
-<WRAP info>
-**NOTE:**  Look for the line(s) that show the video card.
-Make note of the first set of numbers (e.g. 01:00.0 and 01:00.1).
-</WRAP>
-----
-==== Determine the GPU Vendor IDs ====
-Run the command below.
-<WRAP info>
-**NOTE:**  Replace 01:00 with whatever number was next to your GPU when you ran the previous command:
-</WRAP>
-<code bash>
-lspci -n -s 01:00
-</code>
-returns:
-<code bash>
-:00.0 0000: 10de:1b81 (rev a1)
-:00.1 0000: 10de:10f0 (rev a1)
-</code>
-<WRAP info>
-**NOTE:**  This should output the GPU Vendor IDs, usually one ID for the GPU and one ID for the Audio bus.
-Make a note of the vendor id codes: 10de:1b81 and 10de:10f0.
-</WRAP>
-----
-==== Add the GPU Vendor IDs to the VFIO ====
-<code bash>
-echo "options vfio-pci ids=10de:1b81,10de:10f0 disable_vga=1"> /etc/modprobe.d/vfio.conf
-----
-Update
-<code bash>
-update-initramfs -u
-</code>
-----
-==== Restart ====
-<code bash>
-sudo reboot
-</code>
-<WRAP info>
-**NOTE:**  The Proxmox host should be ready to passthrough GPUs!
-</WRAP>
-----
-===== References =====
-https://passthroughpo.st/explaining-csm-efifboff-setting-boot-gpu-manually/