Re: [PATCH v1 3/3] partitions/efi: Support gpt_sector parameter needed by NVIDIA Tegra devices

On Sun, Mar 28, 2021 at 12:21:00AM +0300, Dmitry Osipenko wrote:

All NVIDIA Tegra20..124 Android devices use proprietary bootloader
which supplies the gpt_sector=<sector> kernel cmdline parameter that
should be used for looking up the EFI partition table on internal EMMC
storage.  If the kernel cmdline parameter isn't supplied, then the
partition is expected to be placed around the last but one sector of EMMC.

Apparently this was done in order to hide the PT from a usual userspace
tools since EFI entry exists only for compatibility with a Linux kernel,

That's weird, because nothin in Linux relies in EFI partition tables.

while a custom proprietary partition table is what is really used by
these Android devices, thus these tools may corrupt the real PT, making
device unbootable and very difficult to restore.

Add support for the gpt_sector cmdline parameter which will be used
for finding EFI entry on internal EMMC storage of NVIDIA Tegra20+ devices.

Didn't we plan to just support the actual partition table format insted?