#!/bin/bash
# How to use: switch to asus-nb-ctrl integrated mode, connect dummy or real display, then run this script to start VM

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd)"
cd $DIR

MAIN_GPU="0000:00:01.0" # Actual GPU
ALL_PARTS="0000:01:00.0 0000:01:00.1 0000:01:00.2 0000:01:00.3" # GPU + extras (audio, USB-c, etc. everything in the IOMMU group)
HUGEPAGES_MB=0 # set to 0 if not using dynamic hugepages. note that each page is 2048KiB, so 6144 = 12GiB
LOOKING_GLASS_FPS=120
LOOKING_GLASS_ESCAPE=69 # 69 = F12 is escape key (to toggle mouse capture)
VMNAME=win10

sudo mount -o remount /var/lib/libvirt/images/ # remove this if you're not me
echo "Reserving hugepages and some other shit"
echo $HUGEPAGES_MB | sudo tee /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages

echo 1 | sudo tee /sys/bus/pci/devices/$MAIN_GPU/rescan
sleep 1
sudo ./binddev $ALL_PARTS
#fi
#!/bin/bash

echo 3 | sudo tee /proc/sys/vm/drop_caches
echo 1 | sudo tee /proc/sys/vm/compact_memory
echo 0-15 | sudo tee /sys/fs/cgroup/cpuset/machine.slice/cpuset.cpus
echo "Starting Network"
virsh --connect=qemu:///system net-start default
sudo systemctl start smb nmb # comment out if you dont have smb share for linux
sleep 4
echo "Starting VM"
virsh --connect=qemu:///system start $VMNAME
echo "Starting Scream"
scream -o pulse -i virbr0 & # scream audio
echo "Starting Looking Glass"
looking-glass-client -d -g egl -a -K $LOOKING_GLASS_FPS -j -m $LOOKING_GLASS_ESCAPE -S & 
# if looking glass crashes, press enter to restart it. if you want to stop VM, type "stop" (then enter)

while [ "$command" != "stop" ]; do 
	if jobs | grep looking | grep Running; then
		read command
	else
		looking-glass-client -d -g egl -a -K $LOOKING_GLASS_FPS -j -m $LOOKING_GLASS_ESCAPE -S &
	fi
done
sudo whoami # regain root access
echo "Stopping VM..."
#stop
virsh --connect=qemu:///system shutdown $VMNAME
echo "Killing Looking Glass and Scream..."
kill -9 $(jobs -p)
vmstate=$(virsh --connect=qemu:///system domstate $VMNAME)
echo "Waiting for shutdown..."
while [ "$vmstate" != "shut off" ]; do
	sleep 1
	vmstate=$(virsh --connect=qemu:///system domstate $VMNAME) # wait until virsh reports that VM is stopped
done
sleep 1
echo "VM is off"
echo "Freeing up memory"
echo 0 | sudo tee /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
echo "Unbinding from vfio-pci and removing devices"
sudo ./unbinddev $ALL_PARTS

sudo systemctl stop smb nmb # stop SMB if in use