Add Linux amd64 support to yino-vm (KVM acceleration)
Enable running the dev VM on amd64 Linux hosts with KVM for near-native speed, instead of being limited to slow TCG emulation on Apple Silicon. Detects host OS/arch to select the right accelerator (KVM, HVF, or TCG), OVMF firmware paths, and display backend. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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134
bin/yino-vm
134
bin/yino-vm
@ -4,67 +4,109 @@ set -euo pipefail
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VM_DIR="$(cd "$(dirname "$0")/.." && pwd)/vm"
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DISK_IMAGE="$VM_DIR/yino-vm.qcow2"
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UEFI_VARS="$VM_DIR/yino-vm-vars.fd"
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HOST_OS=$(uname -s) # Darwin or Linux
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HOST_ARCH=$(uname -m) # arm64 or x86_64
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# --- Platform-aware install hints ---
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install_hint() {
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if [[ "$HOST_OS" == "Darwin" ]]; then
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echo "Install it with: brew install qemu" >&2
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else
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echo "Install it with: sudo apt install qemu-system-x86 ovmf" >&2
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fi
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}
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# --- OVMF firmware discovery ---
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find_ovmf_code() {
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local paths=(
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/opt/homebrew/share/qemu/edk2-x86_64-code.fd
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/usr/local/share/qemu/edk2-x86_64-code.fd
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)
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local paths=()
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if [[ "$HOST_OS" == "Darwin" ]]; then
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paths=(
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/opt/homebrew/share/qemu/edk2-x86_64-code.fd
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/usr/local/share/qemu/edk2-x86_64-code.fd
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)
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else
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paths=(
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/usr/share/OVMF/OVMF_CODE_4M.fd
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/usr/share/OVMF/OVMF_CODE.fd
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/usr/share/qemu/OVMF_CODE_4M.fd
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/usr/share/qemu/OVMF_CODE.fd
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/usr/share/edk2/x64/OVMF_CODE.fd
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)
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fi
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for p in "${paths[@]}"; do
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[[ -f "$p" ]] && echo "$p" && return
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done
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# Cellar fallbacks
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local cellar_dirs=(/opt/homebrew/Cellar/qemu /usr/local/Cellar/qemu)
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for d in "${cellar_dirs[@]}"; do
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if [[ -d "$d" ]]; then
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local found
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found=$(find "$d" -name 'edk2-x86_64-code.fd' -print -quit 2>/dev/null)
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[[ -n "$found" ]] && echo "$found" && return
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fi
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done
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if [[ "$HOST_OS" == "Darwin" ]]; then
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local cellar_dirs=(/opt/homebrew/Cellar/qemu /usr/local/Cellar/qemu)
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for d in "${cellar_dirs[@]}"; do
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if [[ -d "$d" ]]; then
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local found
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found=$(find "$d" -name 'edk2-x86_64-code.fd' -print -quit 2>/dev/null)
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[[ -n "$found" ]] && echo "$found" && return
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fi
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done
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fi
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return 1
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}
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find_ovmf_vars_template() {
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local paths=(
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/opt/homebrew/share/qemu/edk2-i386-vars.fd
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/usr/local/share/qemu/edk2-i386-vars.fd
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)
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local paths=()
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if [[ "$HOST_OS" == "Darwin" ]]; then
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paths=(
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/opt/homebrew/share/qemu/edk2-i386-vars.fd
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/usr/local/share/qemu/edk2-i386-vars.fd
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)
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else
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paths=(
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/usr/share/OVMF/OVMF_VARS_4M.fd
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/usr/share/OVMF/OVMF_VARS.fd
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/usr/share/qemu/OVMF_VARS_4M.fd
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/usr/share/qemu/OVMF_VARS.fd
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/usr/share/edk2/x64/OVMF_VARS.fd
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)
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fi
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for p in "${paths[@]}"; do
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[[ -f "$p" ]] && echo "$p" && return
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done
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local cellar_dirs=(/opt/homebrew/Cellar/qemu /usr/local/Cellar/qemu)
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for d in "${cellar_dirs[@]}"; do
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if [[ -d "$d" ]]; then
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local found
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found=$(find "$d" -name 'edk2-i386-vars.fd' -print -quit 2>/dev/null)
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[[ -n "$found" ]] && echo "$found" && return
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fi
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done
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if [[ "$HOST_OS" == "Darwin" ]]; then
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local cellar_dirs=(/opt/homebrew/Cellar/qemu /usr/local/Cellar/qemu)
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for d in "${cellar_dirs[@]}"; do
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if [[ -d "$d" ]]; then
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local found
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found=$(find "$d" -name 'edk2-i386-vars.fd' -print -quit 2>/dev/null)
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[[ -n "$found" ]] && echo "$found" && return
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fi
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done
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fi
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return 1
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}
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# --- CPU/accelerator auto-detection ---
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detect_accel() {
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local arch
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arch=$(uname -m)
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if [[ "$arch" == "arm64" ]]; then
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echo "tcg"
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else
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if [[ "$HOST_OS" == "Linux" && "$HOST_ARCH" == "x86_64" ]]; then
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if [[ -w /dev/kvm ]]; then
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echo "kvm"
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else
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echo "Warning: /dev/kvm not accessible. Install KVM and check permissions." >&2
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echo " sudo apt install qemu-kvm && sudo usermod -aG kvm \$USER" >&2
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echo "tcg"
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fi
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elif [[ "$HOST_OS" == "Darwin" && "$HOST_ARCH" == "x86_64" ]]; then
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echo "hvf"
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else
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echo "tcg"
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fi
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}
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detect_cpu() {
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local arch
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arch=$(uname -m)
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if [[ "$arch" == "arm64" ]]; then
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echo "qemu64"
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else
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local accel="$1"
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if [[ "$accel" == "kvm" || "$accel" == "hvf" ]]; then
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echo "host"
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else
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echo "qemu64"
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fi
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}
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@ -73,7 +115,7 @@ detect_cpu() {
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cmd_create() {
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if ! command -v qemu-system-x86_64 &>/dev/null; then
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echo "Error: qemu-system-x86_64 not found." >&2
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echo "Install it with: brew install qemu" >&2
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install_hint
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exit 1
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fi
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@ -85,8 +127,8 @@ cmd_create() {
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local vars_template
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if ! vars_template=$(find_ovmf_vars_template); then
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echo "Error: OVMF vars template (edk2-i386-vars.fd) not found." >&2
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echo "Install it with: brew install qemu" >&2
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echo "Error: OVMF vars template not found." >&2
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install_hint
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exit 1
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fi
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@ -104,7 +146,7 @@ cmd_create() {
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cmd_boot() {
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if ! command -v qemu-system-x86_64 &>/dev/null; then
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echo "Error: qemu-system-x86_64 not found." >&2
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echo "Install it with: brew install qemu" >&2
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install_hint
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exit 1
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fi
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@ -116,8 +158,8 @@ cmd_boot() {
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local ovmf_code
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if ! ovmf_code=$(find_ovmf_code); then
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echo "Error: OVMF firmware (edk2-x86_64-code.fd) not found." >&2
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echo "Install it with: brew install qemu" >&2
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echo "Error: OVMF firmware not found." >&2
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install_hint
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exit 1
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fi
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@ -129,11 +171,11 @@ cmd_boot() {
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local accel cpu
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accel=$(detect_accel)
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cpu=$(detect_cpu)
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cpu=$(detect_cpu "$accel")
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if [[ "$accel" == "tcg" ]]; then
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echo "Warning: Running x86_64 VM under TCG emulation (Apple Silicon host)."
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echo "This works but is significantly slower than hardware virtualization."
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echo "Warning: Running x86_64 VM under TCG emulation — significantly slower"
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echo "than hardware virtualization (KVM on Linux, HVF on Intel Mac)."
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echo ""
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fi
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@ -168,8 +210,10 @@ cmd_boot() {
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local display_args
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if [[ "$serial" == true ]]; then
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display_args=(-serial mon:stdio -nographic -display none)
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else
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elif [[ "$HOST_OS" == "Darwin" ]]; then
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display_args=(-display cocoa -vga virtio)
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else
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display_args=(-display gtk -vga virtio)
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fi
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echo "Booting VM (accel=$accel, cpu=$cpu)..."
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