diff options
Diffstat (limited to 'drivers/md/Kconfig')
| -rw-r--r-- | drivers/md/Kconfig | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig index edcf4ab66e00..f14b521a2242 100644 --- a/drivers/md/Kconfig +++ b/drivers/md/Kconfig @@ -445,6 +445,33 @@ config DM_VERITY If unsure, say N. +config DM_VERITY_HASH_PREFETCH_MIN_SIZE_128 + bool "Prefetch size 128" + +config DM_VERITY_HASH_PREFETCH_MIN_SIZE + int "Verity hash prefetch minimum size" + depends on DM_VERITY + range 1 4096 + default 128 if DM_VERITY_HASH_PREFETCH_MIN_SIZE_128 + default 1 + ---help--- + This sets minimum number of hash blocks to prefetch for dm-verity. + For devices like eMMC, having larger prefetch size like 128 can improve + performance with increased memory consumption for keeping more hashes + in RAM. + +config DM_VERITY_FEC + bool "Verity forward error correction support" + depends on DM_VERITY + select REED_SOLOMON + select REED_SOLOMON_DEC8 + ---help--- + Add forward error correction support to dm-verity. This option + makes it possible to use pre-generated error correction data to + recover from corrupted blocks. + + If unsure, say N. + config DM_SWITCH tristate "Switch target support (EXPERIMENTAL)" depends on BLK_DEV_DM @@ -475,4 +502,22 @@ config DM_LOG_WRITES If unsure, say N. +config DM_ANDROID_VERITY + tristate "Android verity target support" + depends on DM_VERITY + depends on X509_CERTIFICATE_PARSER + depends on SYSTEM_TRUSTED_KEYRING + depends on PUBLIC_KEY_ALGO_RSA + depends on KEYS + depends on ASYMMETRIC_KEY_TYPE + depends on ASYMMETRIC_PUBLIC_KEY_SUBTYPE + depends on MD_LINEAR + select DM_VERITY_HASH_PREFETCH_MIN_SIZE_128 + ---help--- + This device-mapper target is virtually a VERITY target. This + target is setup by reading the metadata contents piggybacked + to the actual data blocks in the block device. The signature + of the metadata contents are verified against the key included + in the system keyring. Upon success, the underlying verity + target is setup. endif # MD |