ax64vm

#!/bin/bash

export appTitle="Ax64VM"
export logFile="./${appTitle}.log"
echo "" > ${logFile}

installDep(){
set -e
echo "Preparing Dependencies"
pkg update -y -o Dpkg::Options::='--force-confold' --force-yes
pkg upgrade -y -o Dpkg::Options::='--force-confold' --force-yes
pkg install root-repo x11-repo tur-repo -y
pkg update -y -o Dpkg::Options::='--force-confold' --force-yes
pkg install ovmf x11vnc wget aria2 git mesa-demos dialog fluxbox virglrenderer-android virglrenderer qemu-system-x86-64 qemu-utils vde2 tigervnc xorg-server xorg-server-xvfb -y
echo "Should be done"

set +e
VNCSERVERDISPLAY=1
}

renderingBackend(){
set -e
EPOXY_USE_ANGLE=1 virgl_test_server --use-egl-surfaceless --use-gles >> ${logFile} 2>&1  & # you could remove the ${logFile} if you want to see the debug mode
openGLBackendPID=$!
echo "Launched openGL Server ${openGLBackendPID}"

export GALLIUM_DRIVER=virpipe # to forcefully use the virgl_test_server opengl rather than llvm

#vncserver -kill :${VNCSERVERDISPLAY}
#vncserver :${VNCSERVERDISPLAY}

portCalc=$((5900 + ${VNCSERVERDISPLAY}))
#echo "Launched VNCServer at port ${portCalc}"

Xvfb :${VNCSERVERDISPLAY} +render -shmem +xinerama +extension GLX +extension MIT-SHM +extension XTEST -extension SECURITY +extension XINERAMA +extension XFIXES +extension XFree86-Bigfont +extension RENDER +extension RANDR +extension COMPOSITE +extension DAMAGE +extension MIT-SCREEN-SAVER +extension DOUBLE-BUFFER +extension RECORD -extension DPMS +extension X-Resource +extension XVideo +extension XVideo-MotionCompensation +iglx -ac >> ${logFile} 2>&1 &
xvfbPID=$!
echo "Virtual Framebuffer ${xvfbPID}"
sleep 2
export DISPLAY=:${VNCSERVERDISPLAY}

#echo "Launching Window Manager"
fluxbox >> ${logFile} 2>&1 &
fluxboxWMPID=$!

echo "VNCServer x11vnc"
#x11vnc -display :${VNCSERVERDISPLAY} -SecurityTypes None -cursor X -noxdamage -noxcomposite & 
x11vnc -loop -display :${VNCSERVERDISPLAY} -noncache >> ${logFile} 2>&1 &
#x0vncserver -display :${VNCSERVERDISPLAY} -SecurityTypes None& 
vncserverPID=$!

set +e

sleep 3
glxinfo
#glxgears

}



VMEngine(){
echo "Launching VM!"
CPU_FEATURES="+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsaveopt,check,-xsavec,-pcid,-x2apic,-tsc-deadline,-hle,-invpcid,-rtm,-avx512f,-avx512dq,-rdseed,-avx512cd,-avx512bw,-avx512vl,-3dnowprefetch,vmx=off,hypervisor=off"
#https://github.com/kholia/OSX-KVM/blob/master/OpenCore-Boot.sh
ALLOCATED_RAM="4096" #it will allocate 100-$allocPercRuntime to translation cache since the x86 code need to be morph into arm
CPU_SOCKETS="1"
CPU_CORES="$(($(nproc --all) / 2))"
CPU_THREADS="$(($(nproc --all) * 1))"

allocPercRuntime=40 #adjusts your Balance between Runtime VM RAM vs VM TCG Translation Block cache


allocPercTCG=$((100-${allocPercRuntime}))
runtimeRAM=$(( ${ALLOCATED_RAM}  - ( ${ALLOCATED_RAM} * (100-${allocPercRuntime}) / 100 )))
tcgCacheRAM=$(( ${ALLOCATED_RAM}  - ( ${ALLOCATED_RAM} * (100-${allocPercTCG}) / 100 )))

echo "Runtime Ram ${runtimeRAM} tcgCacheRam ${tcgCacheRAM}"
OVMFREPO=${PREFIX}/share/edk2.git/ovmf-x64

args=(
  --accel tcg,thread=multi,tb-size=${tcgCacheRAM},split-wx=off
  -m "${runtimeRAM}" -cpu Penryn,kvm=off,vendor=GenuineIntel,vmware-cpuid-freq=on,"$CPU_FEATURES"
  -machine q35,hmat=off,hpet=off
  -drive if=pflash,format=raw,readonly=on,file="${OVMFREPO}/OVMF_CODE-pure-efi.fd"
  -drive if=pflash,format=raw,file="${OVMFREPO}/OVMF_VARS-pure-efi.fd"
  -smbios type=2
  -usb -device usb-kbd -device usb-tablet
  -smp "$CPU_THREADS",cores="$CPU_CORES",sockets="$CPU_SOCKETS"
  -device usb-ehci,id=ehci
  -device nec-usb-xhci,id=xhci
  -global nec-usb-xhci.msi=on
  -global ICH9-LPC.acpi-pci-hotplug-with-bridge-support=off
  -device ich9-intel-hda -device hda-duplex
  -device ich9-ahci,id=sata
  -device ide-hd,bus=sata.2,drive=${appTitle}persistentDisk
  -drive id=${appTitle}persistentDisk,if=none,file="./${appTitle}_PersistentDisk.qcow",format=qcow2
  -netdev user,id=net0 -device virtio-net-pci,netdev=net0,id=net0,mac=52:54:00:c9:18:27
  -net nic
  -net user
  -display gtk,gl=on
  -rtc base=localtime,clock=host,driftfix=slew
  -cdrom ./cdrom.iso
  #This virtio gpu gl pci thanks to 
  # !. https://www.kraxel.org/blog/2021/05/virtio-gpu-qemu-graphics-update/
  # 2. https://docs.getutm.app/updates/v4.1/ (shows that openGL acceleration only* for Apple Devices)
  -device virtio-vga-gl
  -device virtio-balloon-pci
  -device virtio-rng-pci
  -full-screen
  -global ICH9-LPC.disable_s3=1
  -global ICH9-LPC.disable_s4=1
  #-cdrom ./mt86plus_6.20_64.iso
)
echo "VM Launched!"
qemu-system-x86_64 "${args[@]}" >> ${logFile} 2>&1
echo "Exiting!"
}


grabTerminationHandler(){
#rather than powering off and flushing the translated block completely and redo all the slowness all over again we can just save it as a state
echo "stub" 
vncserver -kill :${VNCSERVERDISPLAY}
kill -9 ${openGLBackendPID} ${xvfbPID} ${fluxboxWMPID} ${vncserverPID} ${logCleanerPID}

}

loadStateIfExists(){
echo "stub"
}

logCleaner(){
while true; do
sleep 300
echo "Cleaning Log"
echo "" > ${logFile}
done
}

checkRequirementStorage(){
echo "Checking!"
linkDefaultISO="https://dl-cdn.alpinelinux.org/alpine/v3.18/releases/x86_64/alpine-extended-3.18.0-x86_64.iso"
if [ ! -f "./cdrom.iso" ]; then
echo "None of the OS ISO is detected!"
dialog --msgbox "Attempting to download Alpine ISO" 10 30
dialog --msgbox "However if you wanted another OS you can ctrl+c and replace the cdrom.iso with other OS iso on the working directory" 10 30
aria2c --max-connection-per-server=16 "${linkDefaultISO}" -o "./cdrom.iso"
#stub to be worked on optimized qcow2 baseImage for the ax64vm

fi

if [ ! -f "./${appTitle}_PersistentDisk.qcow" ]; then
git clone https://github.com/Questandachievement7Developers/ax64vm_baseImage
echo "Done" 
echo "Creating Persistent qcow disk"
qemu-img create -f qcow2 "./${appTitle}_PersistentDisk.qcow" 32G
echo "Should be done!"
sleep 5
fi
}

main(){
  if [ "${1}" == "pcModeDebug" ]; then
    echo "DebugModeEnabled"
    checkRequirementStorage
    VMEngine
  else
    echo "Installing Dependencies"
    dialog --title ${appTitle} --gauge "Booting Up" 10 40 5 &
    installDep
    sleep 1
    dialog --title ${appTitle} --gauge "Booting Up" 10 40 10 &
    sleep 1
    renderingBackend >> ${logFile} 2>&1
    dialog --title ${appTitle} --gauge "Booting Up" 10 40 66 &
    sleep 1
    loadStateIfExists >> ${logFile} 2>&1
    dialog --title ${appTitle} --gauge "Booting Up" 10 40 89 &
    checkRequirementStorage
    echo "Executing VM"
    sleep 1
    dialog --title ${appTitle} --gauge "Booting Up" 10 40 100 &
    sleep 1
    logCleaner >> ${logFile} 2>&1 &
    export logCleanerPID=$!
    dialog --msgbox "Your VM Should be accessible through VNC Port 5900, However if you wanted to terminate the VM do single ctrl+c in here" 10 30 &
    VMEngine >> ${logFile} 2>&1
    grabTerminationHandler >> ${logFile} 2>&1
  fi
#----
echo "Execution Ended!"
cat ${logFile}
}

main ${1}