#!/usr/bin/env bash

if [ -z "$KUT_STANDALONE" ]; then
	if [ ! -f config.mak ]; then
		echo "run ./configure && make first. See ./configure -h"
		exit 2
	fi
	source config.mak
	source scripts/arch-run.bash
fi
qemu_cpu="$TARGET_CPU"

if [ "$QEMU" ] && [ -z "$ACCEL" ] &&
   [ "$HOST" = "aarch64" ] && [ "$ARCH" = "arm" ] &&
   [ "$(basename $QEMU)" = "qemu-system-arm" ]; then
	ACCEL="tcg"
fi

set_qemu_accelerator || exit $?
if [ "$ACCEL" = "kvm" ]; then
	QEMU_ARCH=$HOST
fi

qemu=$(search_qemu_binary) ||
	exit $?

if ! $qemu -machine '?' | grep -q 'ARM Virtual Machine'; then
	echo "$qemu doesn't support mach-virt ('-machine virt'). Exiting."
	exit 2
fi

M='-machine virt'

if [ "$ACCEL" = "kvm" ]; then
	if $qemu $M,\? | grep -q gic-version; then
		M+=',gic-version=host'
	fi
fi

if [ -z "$qemu_cpu" ]; then
	if ( [ "$ACCEL" = "kvm" ] || [ "$ACCEL" = "hvf" ] ) &&
	   ( [ "$HOST" = "aarch64" ] || [ "$HOST" = "arm" ] ); then
		qemu_cpu="host"
		if [ "$ARCH" = "arm" ] && [ "$HOST" = "aarch64" ]; then
			qemu_cpu+=",aarch64=off"
		fi
	else
		qemu_cpu="$DEFAULT_QEMU_CPU"
	fi
fi

if [ "$ARCH" = "arm" ]; then
	M+=",highmem=off"
fi

if ! $qemu $M -device '?' | grep -q virtconsole; then
	echo "$qemu doesn't support virtio-console for chr-testdev. Exiting."
	exit 2
fi

if ! $qemu $M -chardev '?' | grep -q testdev; then
	echo "$qemu doesn't support chr-testdev. Exiting."
	exit 2
fi

if [ "$UEFI_SHELL_RUN" != "y" ] && [ "$EFI_USE_ACPI" != "y" ]; then
	chr_testdev='-device virtio-serial-device'
	chr_testdev+=' -device virtconsole,chardev=ctd -chardev testdev,id=ctd'
fi

pci_testdev=
if $qemu $M -device '?' | grep -q pci-testdev; then
	pci_testdev="-device pci-testdev"
fi

A="-accel $ACCEL$ACCEL_PROPS"
command="$qemu -nodefaults $M $A -cpu $qemu_cpu $chr_testdev $pci_testdev"
command+=" -display none -serial stdio"
command="$(migration_cmd) $(timeout_cmd) $command"

if [ "$UEFI_SHELL_RUN" = "y" ]; then
	ENVIRON_DEFAULT=n run_qemu_status $command "$@"
elif [ "$EFI_USE_ACPI" = "y" ]; then
	run_qemu_status $command -kernel "$@"
else
	run_qemu $command -kernel "$@"
fi