Re: [PATCH v1] partitions/efi: Add 'gpt_sector' kernel cmdline parameter

From: Dmitry Osipenko
Date: Wed Feb 19 2020 - 11:36:40 EST

19.02.2020 19:26, Ard Biesheuvel ÐÐÑÐÑ:
> On Wed, 19 Feb 2020 at 17:25, Dmitry Osipenko <digetx@xxxxxxxxx> wrote:
>> The gpt_sector=<sector> causes the GPT partition search to look at the
>> specified sector for a valid GPT header if the GPT is not found at the
>> beginning or the end of block device.
>> In particular this is needed for NVIDIA Tegra consumer-grade Android
>> devices in order to make them usable with the upstream kernel because
>> these devices use a proprietary / closed-source partition table format
>> for the EMMC and it's impossible to change the partition's format. Luckily
>> there is a GPT table in addition to the proprietary table, which is placed
>> in uncommon location of the EMMC storage and bootloader passes the
>> location to kernel using "gpt gpt_sector=<sector>" cmdline parameters.
>> This patch is based on the original work done by Colin Cross for the
>> downstream Android kernel.
>> Cc: Colin Cross <ccross@xxxxxxxxxxx>
>> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> Which block device is this parameter applied to?

All available devices.