VFIO Success

scripts/hooks/win10-igpu/prepare/begin/start.sh

@@ -0,0 +1,65 @@
+#!/bin/bash
+
+set -x
+
+# Load Variables
+source "/etc/libvirt/hooks/kvm.conf"
+
+# Unmount the Windows drive
+umount $WIN || /bin/true
+
+# Stop LightDM
+systemctl stop lightdm.service
+sleep 2
+
+# Calculate number of hugepages to allocate from memory (in MB)
+HUGEPAGES="$(($MEMORY/$(($(grep Hugepagesize /proc/meminfo | awk '{print $2}')/1024))))"
+
+echo "Allocating hugepages..."
+echo $HUGEPAGES > /proc/sys/vm/nr_hugepages
+ALLOC_PAGES=$(cat /proc/sys/vm/nr_hugepages)
+
+TRIES=0
+while (( $ALLOC_PAGES != $HUGEPAGES && $TRIES < 1000 ))
+do
+    echo 1 > /proc/sys/vm/compact_memory            ## defrag ram
+    echo $HUGEPAGES > /proc/sys/vm/nr_hugepages
+    ALLOC_PAGES=$(cat /proc/sys/vm/nr_hugepages)
+    echo "Succesfully allocated $ALLOC_PAGES / $HUGEPAGES"
+    let TRIES+=1
+done
+
+if [ "$ALLOC_PAGES" -ne "$HUGEPAGES" ]
+then
+    echo "Not able to allocate all hugepages. Reverting..."
+    echo 0 > /proc/sys/vm/nr_hugepages
+    exit 1
+fi
+
+# Unload all Nvidia drivers
+modprobe -r nvidia_drm
+modprobe -r nvidia_modeset
+modprobe -r nvidia_uvm
+modprobe -r nvidia
+
+# Unbind the GPU from display driver
+virsh nodedev-detach $VIRSH_GPU_VIDEO
+virsh nodedev-detach $VIRSH_GPU_AUDIO
+
+# Load VFIO kernel module
+modprobe vfio
+modprobe vfio_pci
+modprobe vfio_iommu_type1
+
+# Create looking glass shm
+systemd-tmpfiles --create /etc/tmpfiles.d/10-looking-glass.conf
+
+# Enable CPU governor performance mode
+cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do echo "performance" > $file; done
+cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+
+# Isolate host
+systemctl set-property --runtime -- user.slice AllowedCPUs=12,13,14,15
+systemctl set-property --runtime -- system.slice AllowedCPUs=12,13,14,15
+systemctl set-property --runtime -- init.scope AllowedCPUs=12,13,14,15

scripts/hooks/win10-igpu/release/end/revert.sh

@@ -0,0 +1,43 @@
+#!/bin/bash
+
+set -x
+
+# Load Variables
+source "/etc/libvirt/hooks/kvm.conf"
+
+# Unload VFIO kernel module
+modprobe -r vfio_pci
+modprobe -r vfio_iommu_type1
+modprobe -r vfio
+
+# Rebind the GPU to display driver
+virsh nodedev-reattach $VIRSH_GPU_VIDEO
+virsh nodedev-reattach $VIRSH_GPU_AUDIO
+
+# Read our nvidia configuration when before starting our graphics
+nvidia-xconfig --query-gpu-info > /dev/null 2>&1
+
+# Load all Nvidia drivers
+modprobe nvidia_drm
+modprobe nvidia_modeset
+modprobe nvidia_uvm
+modprobe nvidia
+
+# Dealloc hugepages
+echo 0 > /proc/sys/vm/nr_hugepages
+
+## Enable CPU governor schedutil mode
+cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+for file in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor; do echo "schedutil" > $file; done
+cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+
+# Deisolate host
+systemctl set-property --runtime -- user.slice AllowedCPUs=0-15
+systemctl set-property --runtime -- system.slice AllowedCPUs=0-15
+systemctl set-property --runtime -- init.scope AllowedCPUs=0-15
+
+# Delete looking glass shm
+rm /dev/shm/looking-glass
+
+# Mount the Windows drive
+mount -a || /bin/true

scripts/hooks/win10-igpu/started/begin/lightdm.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+# Uncomment autologin lines in /etc/lightdm/lightdm.conf
+sed -i 's/^#autologin-user=/autologin-user=/' /etc/lightdm/lightdm.conf
+sed -i 's/^#autologin-user-timeout=/autologin-user-timeout=/' /etc/lightdm/lightdm.conf
+sed -i 's/^#autologin-session=/autologin-session=/' /etc/lightdm/lightdm.conf
+
+# Restart lightdm
+systemctl restart lightdm.service
+
+# Sleep 10 seconds
+sleep 10
+
+# Comment out autologin lines in /etc/lightdm/lightdm.conf
+sed -i 's/^autologin-user=/#autologin-user=/' /etc/lightdm/lightdm.conf
+sed -i 's/^autologin-user-timeout=/#autologin-user-timeout=/' /etc/lightdm/lightdm.conf
+sed -i 's/^autologin-session=/#autologin-session=/' /etc/lightdm/lightdm.conf