scsi: ufs: exynos: Add support for Flash Memory Protector (FMP)

Browse source

Add support for Flash Memory Protector (FMP), which is the inline
encryption hardware on Exynos and Exynos-based SoCs.

Specifically, add support for the "traditional FMP mode" that works on many
Exynos-based SoCs including gs101.  This is the mode that uses "software
keys" and is compatible with the upstream kernel's existing inline
encryption framework in the block and filesystem layers.  I plan to add
support for the wrapped key support on gs101 at a later time.

Tested on gs101 (specifically Pixel 6) by running the 'encrypt' group of
xfstests on a filesystem mounted with the 'inlinecrypt' mount option.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20240708235330.103590-7-ebiggers@kernel.org
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

...

This commit is contained in:

Eric Biggers 2024-07-08 16:53:30 -07:00 • committed by Martin K. Petersen

parent 4c45dba50a

commit c96499fcb4

1 changed files with 234 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

240

drivers/ufs/host/ufs-exynos.c

View file