51 lines
1.0 KiB
Plaintext
51 lines
1.0 KiB
Plaintext
|
#!/bin/bash
|
||
|
|
set -e
|
||
|
|
|
||
|
|
# main available options:
|
||
|
|
# QEMU_CPU=n (cores)
|
||
|
|
# QEMU_RAM=nnn (megabytes)
|
||
|
|
# QEMU_HDA (filename)
|
||
|
|
# QEMU_HDA_SIZE (bytes, suffixes like "G" allowed)
|
||
|
|
# QEMU_CDROM (filename)
|
||
|
|
|
||
|
|
hostArch="$(uname -m)"
|
||
|
|
qemuArch="${QEMU_ARCH:-$hostArch}"
|
||
|
|
qemu="${QEMU_BIN:-qemu-system-$qemuArch}"
|
||
|
|
qemuArgs=()
|
||
|
|
|
||
|
|
if [ -e /dev/kvm ]; then
|
||
|
|
qemuArgs+=( -enable-kvm )
|
||
|
|
elif [ "$hostArch" = "$qemuArch" ]; then
|
||
|
|
echo >&2
|
||
|
|
echo >&2 'warning: /dev/kvm not found'
|
||
|
|
echo >&2 ' PERFORMANCE WILL SUFFER'
|
||
|
|
echo >&2 ' (hint: docker run --device /dev/kvm ...)'
|
||
|
|
echo >&2
|
||
|
|
sleep 3
|
||
|
|
fi
|
||
|
|
|
||
|
|
qemuArgs+=( -smp "${QEMU_CPU:-1}" )
|
||
|
|
qemuArgs+=( -m "${QEMU_RAM:-512}" )
|
||
|
|
|
||
|
|
if [ "$QEMU_HDA" ]; then
|
||
|
|
if [ ! -f "$QEMU_HDA" -o ! -s "$QEMU_HDA" ]; then
|
||
|
|
qemu-img create "$QEMU_HDA" "${QEMU_HDA_SIZE:-8G}"
|
||
|
|
fi
|
||
|
|
qemuArgs+=( -hda "$QEMU_HDA" )
|
||
|
|
fi
|
||
|
|
|
||
|
|
if [ "$QEMU_CDROM" ]; then
|
||
|
|
qemuArgs+=( -cdrom "$QEMU_CDROM" )
|
||
|
|
fi
|
||
|
|
|
||
|
|
qemuArgs+=(
|
||
|
|
-net nic
|
||
|
|
-net user,hostname="$(hostname)",hostfwd=tcp:':22'-':22'
|
||
|
|
-vnc ':0'
|
||
|
|
-serial stdio
|
||
|
|
"$@"
|
||
|
|
)
|
||
|
|
|
||
|
|
set -x
|
||
|
|
exec "$qemu" "${qemuArgs[@]}"
|