mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-05 02:51:00 +00:00
6b2f82901e
It is quite complicated to run U-Boot on QEMU since we have four different builds and they must use different versions of qemu and the UEFI binaries. Add a script to help. It requires U-Boot itself to be built. Once that is done you can use this script to build an image for use with qemu and optionally run it. Signed-off-by: Simon Glass <sjg@chromium.org>
193 lines
4.2 KiB
Bash
Executable file
193 lines
4.2 KiB
Bash
Executable file
#!/bin/bash
|
|
# SPDX-License-Identifier: GPL-2.0+
|
|
#
|
|
# Script to build an EFI thing suitable for booting with QEMU, possibly running
|
|
# it also.
|
|
|
|
# This just an example. It assumes that
|
|
|
|
# - you build U-Boot in ${ubdir}/<name> where <name> is the U-Boot board config
|
|
# - /mnt/x is a directory used for mounting
|
|
# - you have access to the 'pure UEFI' builds for QEMU
|
|
#
|
|
# UEFI binaries for QEMU used for testing this script:
|
|
#
|
|
# OVMF-pure-efi.i386.fd at
|
|
# https://drive.google.com/file/d/1jWzOAZfQqMmS2_dAK2G518GhIgj9r2RY/view?usp=sharing
|
|
|
|
# OVMF-pure-efi.x64.fd at
|
|
# https://drive.google.com/file/d/1c39YI9QtpByGQ4V0UNNQtGqttEzS-eFV/view?usp=sharing
|
|
|
|
set -e
|
|
|
|
usage() {
|
|
echo "Usage: $0 [-a | -p] [other opts]" 1>&2
|
|
echo 1>&2
|
|
echo " -a - Package up the app" 1>&2
|
|
echo " -o - Use old EFI app build (before 32/64 split)" 1>&2
|
|
echo " -p - Package up the payload" 1>&2
|
|
echo " -P - Create a partition table" 1>&2
|
|
echo " -r - Run QEMU with the image" 1>&2
|
|
echo " -s - Run QEMU with serial only (no display)" 1>&2
|
|
echo " -w - Use word version (32-bit)" 1>&2
|
|
exit 1
|
|
}
|
|
|
|
# 32- or 64-bit EFI
|
|
bitness=64
|
|
|
|
# app or payload ?
|
|
type=app
|
|
|
|
# create a partition table and put the filesystem in that (otherwise put the
|
|
# filesystem in the raw device)
|
|
part=
|
|
|
|
# run the image with QEMU
|
|
run=
|
|
|
|
# run QEMU without a display (U-Boot must be set to stdout=serial)
|
|
serial=
|
|
|
|
# before the 32/64 split of the app
|
|
old=
|
|
|
|
# Set ubdir to the build directory where you build U-Boot out-of-tree
|
|
# We avoid in-tree build because it gets confusing trying different builds
|
|
ubdir=/tmp/b/
|
|
|
|
while getopts "aopPrsw" opt; do
|
|
case "${opt}" in
|
|
a)
|
|
type=app
|
|
;;
|
|
p)
|
|
type=payload
|
|
;;
|
|
r)
|
|
run=1
|
|
;;
|
|
s)
|
|
serial=1
|
|
;;
|
|
w)
|
|
bitness=32
|
|
;;
|
|
o)
|
|
old=1
|
|
;;
|
|
P)
|
|
part=1
|
|
;;
|
|
*)
|
|
usage
|
|
;;
|
|
esac
|
|
done
|
|
|
|
run_qemu() {
|
|
extra=
|
|
if [[ "${bitness}" = "64" ]]; then
|
|
qemu=qemu-system-x86_64
|
|
bios=OVMF-pure-efi.x64.fd
|
|
else
|
|
qemu=qemu-system-i386
|
|
bios=OVMF-pure-efi.i386.fd
|
|
fi
|
|
if [[ -n "${serial}" ]]; then
|
|
extra="-display none -serial mon:stdio"
|
|
fi
|
|
echo "Running ${qemu}"
|
|
# Use 512MB since U-Boot EFI likes to have 256MB to play with
|
|
"${qemu}" -bios "${bios}" \
|
|
-m 512 \
|
|
-drive id=disk,file="${IMG}",if=none,format=raw \
|
|
-nic none -device ahci,id=ahci \
|
|
-device ide-hd,drive=disk,bus=ahci.0 ${extra}
|
|
}
|
|
|
|
setup_files() {
|
|
echo "Packaging ${BUILD}"
|
|
mkdir -p $TMP
|
|
cat >$TMP/startup.nsh <<EOF
|
|
fs0:u-boot-${type}.efi
|
|
EOF
|
|
sudo cp ${ubdir}/${BUILD}/u-boot-${type}.efi $TMP
|
|
|
|
# Can copy in other files here:
|
|
#sudo cp ${ubdir}/$BUILD/image.bin $TMP/chromeos.rom
|
|
#sudo cp /boot/vmlinuz-5.4.0-77-generic $TMP/vmlinuz
|
|
}
|
|
|
|
# Copy files into the filesystem
|
|
copy_files() {
|
|
sudo cp $TMP/* $MNT
|
|
}
|
|
|
|
# Create a filesystem on a raw device and copy in the files
|
|
setup_raw() {
|
|
mkfs.vfat "${IMG}" >/dev/null
|
|
sudo mount -o loop "${IMG}" $MNT
|
|
copy_files
|
|
sudo umount $MNT
|
|
}
|
|
|
|
# Create a partition table and put the filesystem in the first partition
|
|
# then copy in the files
|
|
setup_part() {
|
|
# Create a gpt partition table with one partition
|
|
parted "${IMG}" mklabel gpt 2>/dev/null
|
|
|
|
# This doesn't work correctly. It creates:
|
|
# Number Start End Size File system Name Flags
|
|
# 1 1049kB 24.1MB 23.1MB boot msftdata
|
|
# Odd if the same is entered interactively it does set the FS type
|
|
parted -s -a optimal -- "${IMG}" mkpart boot fat32 1MiB 23MiB
|
|
|
|
# Map this partition to a loop device
|
|
kp="$(sudo kpartx -av ${IMG})"
|
|
read boot_dev<<<$(grep -o 'loop.*p.' <<< "${kp}")
|
|
test "${boot_dev}"
|
|
dev="/dev/mapper/${boot_dev}"
|
|
|
|
mkfs.vfat "${dev}" >/dev/null
|
|
|
|
sudo mount -o loop "${dev}" $MNT
|
|
|
|
copy_files
|
|
|
|
# Sync here since this makes kpartx more likely to work the first time
|
|
sync
|
|
sudo umount $MNT
|
|
|
|
# For some reason this needs a sleep or it sometimes fails, if it was
|
|
# run recently (in the last few seconds)
|
|
if ! sudo kpartx -d "${IMG}" > /dev/null; then
|
|
sleep .5
|
|
sudo kpartx -d "${IMG}" > /dev/null || \
|
|
echo "Failed to remove ${boot_dev}, use: sudo kpartx -d ${IMG}"
|
|
fi
|
|
}
|
|
|
|
TMP="/tmp/efi${bitness}${type}"
|
|
MNT=/mnt/x
|
|
BUILD="efi-x86_${type}${bitness}"
|
|
IMG=try.img
|
|
|
|
if [[ -n "${old}" && "${bitness}" = "32" ]]; then
|
|
BUILD="efi-x86_${type}"
|
|
fi
|
|
|
|
setup_files
|
|
|
|
qemu-img create "${IMG}" 24M >/dev/null
|
|
|
|
if [[ -n "${part}" ]]; then
|
|
setup_part
|
|
else
|
|
setup_raw
|
|
fi
|
|
|
|
if [[ -n "${run}" ]]; then
|
|
run_qemu
|
|
fi
|