[CONF] New headless mode.

Co-authored-by: Mitchel Humpherys <mitch@directangular.com>

headless.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+OSK="ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"
+VMDIR=$PWD
+OVMF=$VMDIR/firmware
+
+[[ -z "$MEM" ]] && {
+	MEM="1G"
+}
+
+[[ -z "$CPUS" ]] && {
+	CPUS=1
+}
+
+[[ -z "$SYSTEM_DISK" ]] && {
+    echo "Please set the SYSTEM_DISK environment variable"
+    exit 1
+}
+
+[[ -r "$SYSTEM_DISK" ]] || {
+    echo "Can't read system disk image: $SYSTEM_DISK"
+    exit 1
+}
+
+MOREARGS=()
+
+[[ "$HEADLESS" = "1" ]] && {
+    MOREARGS+=(-nographic -vnc :0 -k en-us)
+}
+
+qemu-system-x86_64 \
+    -enable-kvm \
+    -m $MEM \
+    -machine q35,accel=kvm \
+    -smp $CPUS \
+    -cpu Penryn,vendor=GenuineIntel,kvm=on,+sse3,+sse4.2,+aes,+xsave,+avx,+xsaveopt,+xsavec,+xgetbv1,+avx2,+bmi2,+smep,+bmi1,+fma,+movbe,+invtsc \
+    -device isa-applesmc,osk="$OSK" \
+    -smbios type=2 \
+    -drive if=pflash,format=raw,readonly,file=$OVMF/OVMF_CODE.fd \
+    -drive if=pflash,format=raw,file=$OVMF/OVMF_VARS-1024x768.fd \
+    -vga qxl \
+    -usb -device usb-kbd -device usb-tablet \
+    -netdev user,id=net0 \
+    -device e1000-82545em,netdev=net0,id=net0,mac=52:54:00:0e:0d:20 \
+    -device ich9-ahci,id=sata \
+    -drive id=ESP,if=none,format=qcow2,file=ESP.qcow2 \
+    -device ide-hd,bus=sata.2,drive=ESP \
+    -drive id=InstallMedia,format=raw,if=none,file=BaseSystem.img \
+    -device ide-hd,bus=sata.3,drive=InstallMedia \
+    -drive id=SystemDisk,if=none,file="${SYSTEM_DISK}" \
+    -device ide-hd,bus=sata.4,drive=SystemDisk \
+    ${MOREARGS[@]}