From bd65a069832bc69bb1bd5edd8a2b1ee817a8fe38 Mon Sep 17 00:00:00 2001
From: Jakub Filo <plantroon@plantroon.com>
Date: Fri, 14 Jan 2022 01:14:54 +0000
Subject: [PATCH] Added framebuffer unbinding for single GPU passthrough

---
 roles/libvirthost/files/usr/local/bin/kvm-tuning.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/roles/libvirthost/files/usr/local/bin/kvm-tuning.sh b/roles/libvirthost/files/usr/local/bin/kvm-tuning.sh
index 918ed66..8ceeb52 100755
--- a/roles/libvirthost/files/usr/local/bin/kvm-tuning.sh
+++ b/roles/libvirthost/files/usr/local/bin/kvm-tuning.sh
@@ -26,4 +26,10 @@ echo 0 > /sys/bus/workqueue/devices/writeback/numa
 echo 0 > /proc/sys/kernel/watchdog
 echo 300 > /proc/sys/vm/stat_interval
 
+# For single GPU passthrough
+# Unbind VTconsoles
+echo 0 > /sys/class/vtconsole/vtcon0/bind
+echo 0 > /sys/class/vtconsole/vtcon1/bind
+# Unbind EFI-Framebuffer
+echo efi-framebuffer.0 > /sys/bus/platform/drivers/efi-framebuffer/unbind