qemush/qemu/launchers/kvm

#!/usr/bin/env sh
set -x

# What processor architecture to use
arch=$QEMUSH_ARCH
[ -z "$arch" ] && arch=$(uname -m)

# How many CPU cores to use
nproc=$QEMUSH_NPROC
[ -z "$nproc" ] && nproc=$(($(nproc) / 2))

# How much RAM to use
ram=$QEMUSH_RAM
[ -z "$ram" ] && ram=$(($(free | grep '^Mem:\s' | awk '{ print $NF }') / 2))K

# Set the arguments
set -- "qemu-system-${arch}" \
    -enable-kvm \
    -M q35 \
    -cpu host -smp "$nproc" \
    -m "$ram" \
    "$@"

# Start the machine
exec "$@"