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avb: add support for named persistent values

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AVB 2.0 spec. revision 1.1 introduces support for named persistent values
that must be tamper evident and allows AVB to store arbitrary key-value
pairs [1].

Introduce implementation of two additional AVB operations
read_persistent_value()/write_persistent_value() for retrieving/storing
named persistent values.

Correspondent pull request in the OP-TEE OS project repo [2].

[1]: https://android.googlesource.com/platform/external/avb/+/android-9.0.0_r22
[2]: https://github.com/OP-TEE/optee_os/pull/2699

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Igor Opaniuk <igor.opaniuk@gmail.com>
This commit is contained in:
Igor Opaniuk 2019-04-09 15:38:14 +02:00 • committed by Tom Rini
parent b85d155199
commit fc1fe01b08
7 changed files with 351 additions and 22 deletions
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2
include/tee.h
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@ -43,7 +43,9 @@
#define TEE_ERROR_COMMUNICATION 0xffff000e
#define TEE_ERROR_SECURITY 0xffff000f
#define TEE_ERROR_OUT_OF_MEMORY 0xffff000c
#define TEE_ERROR_OVERFLOW 0xffff300f
#define TEE_ERROR_TARGET_DEAD 0xffff3024
#define TEE_ERROR_STORAGE_NO_SPACE 0xffff3041
#define TEE_ORIGIN_COMMS 0x00000002
#define TEE_ORIGIN_TEE 0x00000003