From: Frieder Schrempf <[email protected]> DiskHelper can only create disk images with an MBR partition table, so tests that need partition names cannot use it.
Add a gpt option to create a GPT partition table instead, and a name argument to add_fs() to name a partition. With GPT, the 'bootable' flag is set as the LegacyBIOSBootable attribute, which U-Boot reads as bootable, and 1MB is reserved at the end of the disk for the backup GPT. Assisted-by: LLM Signed-off-by: Frieder Schrempf <[email protected]> --- test/py/tests/fs_helper.py | 36 +++++++++++++++++++++++++++--------- 1 file changed, 27 insertions(+), 9 deletions(-) diff --git a/test/py/tests/fs_helper.py b/test/py/tests/fs_helper.py index e3824b2c1fd..d6e0f5e65d7 100644 --- a/test/py/tests/fs_helper.py +++ b/test/py/tests/fs_helper.py @@ -124,7 +124,13 @@ class DiskHelper: VFAT = 0xc EXT4 = 0x83 - def __init__(self, config, devnum, prefix, cur_dir=False): + # GPT partition-type GUIDs for the above codes + GPT_TYPES = { + VFAT: 'EBD0A0A2-B9E5-4433-87C0-68B6B72699C7', + EXT4: '0FC63DAF-8483-4772-8E79-3D69D8477DE4', + } + + def __init__(self, config, devnum, prefix, cur_dir=False, gpt=False): """Set up a new disk image Args: @@ -133,37 +139,49 @@ class DiskHelper: prefix (str): Prefix string of volume's file name cur_dir (bool): True to put the file in the current directory, instead of the persistent-data directory + gpt (bool): True to use a GPT partition table, instead of MBR """ self.fs_list = [] + self.gpt = gpt self.fname = os.path.join('' if cur_dir else config.persistent_data_dir, f'{prefix}{devnum}.img') - def add_fs(self, fs_img, part_type, bootable=False): + def add_fs(self, fs_img, part_type, bootable=False, name=None): """Add a new filesystem Args: fs_img (FsHelper): Filesystem to add part_type (DiskHelper.FAT or DiskHelper.EXT4): Partition type bootable (bool): True to set the 'bootable' flat + name (str): Partition name, only supported with GPT """ - self.fs_list.append([fs_img, part_type, bootable]) + if name and not self.gpt: + raise ValueError('Partition names need a GPT partition table') + self.fs_list.append([fs_img, part_type, bootable, name]) def create(self): """Create the disk image Create an image with a partition table and the filesystems """ - spec = '' + spec = 'label: gpt' if self.gpt else '' pos = 1 # Reserve 1MB for the partition table itself - for fsi, part_type, bootable in self.fs_list: + for fsi, part_type, bootable, name in self.fs_list: if spec: spec += '\n' - spec += f'type={part_type:x}, size={fsi.size_mb}M, start={pos}M' + if self.gpt: + spec += f'type={self.GPT_TYPES[part_type]}' + else: + spec += f'type={part_type:x}' + spec += f', size={fsi.size_mb}M, start={pos}M' if bootable: - spec += ', bootable' + spec += ', attrs=LegacyBIOSBootable' if self.gpt else ', bootable' + if name: + spec += f', name={name}' pos += fsi.size_mb - img_size = pos + # Reserve 1MB at the end for the backup GPT + img_size = pos + 1 if self.gpt else pos try: check_call(f'qemu-img create {self.fname} {img_size}M', shell=True) check_call(f'printf "{spec}" | sfdisk {self.fname}', shell=True) @@ -172,7 +190,7 @@ class DiskHelper: raise pos = 1 # Reserve 1MB for the partition table itself - for fsi, part_type, bootable in self.fs_list: + for fsi, _, _, _ in self.fs_list: check_call( f'dd if={fsi.fs_img} of={self.fname} bs=1M seek={pos} conv=notrunc', shell=True) -- 2.56.0
