#!/bin/sh

arch="${0##*-}"
base="$(cd $(dirname $0); cd ..; pwd)"
data="${base}/tmp"

# arch specific config
case "$arch" in
i386)
	qemu="qemu-system-x86_64"
	craw="blobs/edk2-i386/OVMF_CODE.fd"
	vraw="blobs/edk2-i386/OVMF_VARS.fd"
	size=""
	;;
x86_64)
	qemu="qemu-system-x86_64"
	craw="blobs/edk2-x86_64/OVMF_CODE.fd"
	vraw="blobs/edk2-x86_64/OVMF_VARS.fd"
	size=""
	;;
arm)
	qemu="qemu-system-arm -M virt"
	craw="blobs/edk2-arm/QEMU_EFI.fd"
	vraw="blobs/edk2-arm/QEMU_VARS.fd"
	size="64M"
	;;
aarch64)
	qemu="qemu-system-aarch64 -M virt"
	craw="blobs/edk2-aarch64/QEMU_EFI.fd"
	vraw="blobs/edk2-aarch64/QEMU_VARS.fd"
	size="64M"
	;;
*)
	echo "unknown arch: $arch"
	exit 1
	;;
esac

# create qcow2 images for the firmware
code="$data/$arch/efi-code.qcow2"
vars="$data/$arch/efi-vars.qcow2"

mkdir -p "$data/$arch"
if test -f "$code" -a "$craw" -nt "$code"; then
	# remove stale files
	rm -f "$code" "$vars"
fi
if test ! -f "$code"; then
	qemu-img create -f qcow2 -b "$base/$craw" -F raw "$code" $size
fi
if test ! -f "$vars"; then
	qemu-img create -f qcow2 -b "$base/$vraw" -F raw "$vars" $size
fi

# run qemu
exec $qemu \
	-drive file="$code",format=qcow2,if=pflash,readonly=on \
	-drive file="$vars",format=qcow2,if=pflash \
	"$@"