From fc1fe01b08cedd77a194bb82fa81af4fe1e39031 Mon Sep 17 00:00:00 2001 From: Igor Opaniuk Date: Tue, 9 Apr 2019 15:38:14 +0200 Subject: avb: add support for named persistent values 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 Reviewed-by: Sam Protsenko Signed-off-by: Igor Opaniuk --- include/tee/optee_ta_avb.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/tee') diff --git a/include/tee/optee_ta_avb.h b/include/tee/optee_ta_avb.h index 074386af19..949875a64c 100644 --- a/include/tee/optee_ta_avb.h +++ b/include/tee/optee_ta_avb.h @@ -45,4 +45,20 @@ */ #define TA_AVB_CMD_WRITE_LOCK_STATE 3 +/* + * Reads a persistent value corresponding to the given name. + * + * in params[0].u.memref: persistent value name + * out params[1].u.memref: read persistent value buffer + */ +#define TA_AVB_CMD_READ_PERSIST_VALUE 4 + +/* + * Writes a persistent value corresponding to the given name. + * + * in params[0].u.memref: persistent value name + * in params[1].u.memref: persistent value buffer to write + */ +#define TA_AVB_CMD_WRITE_PERSIST_VALUE 5 + #endif /* __TA_AVB_H */ -- cgit v1.2.3