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https://github.com/brain-hackers/u-boot-brain
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fc1fe01b08
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>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/* Copyright (c) 2018, Linaro Limited */
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#ifndef __TA_AVB_H
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#define __TA_AVB_H
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#define TA_AVB_UUID { 0x023f8f1a, 0x292a, 0x432b, \
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{ 0x8f, 0xc4, 0xde, 0x84, 0x71, 0x35, 0x80, 0x67 } }
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#define TA_AVB_MAX_ROLLBACK_LOCATIONS 256
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/*
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* Gets the rollback index corresponding to the given rollback index slot.
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*
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* in params[0].value.a: rollback index slot
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* out params[1].value.a: upper 32 bits of rollback index
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* out params[1].value.b: lower 32 bits of rollback index
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*/
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#define TA_AVB_CMD_READ_ROLLBACK_INDEX 0
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/*
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* Updates the rollback index corresponding to the given rollback index slot.
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*
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* Will refuse to update a slot with a lower value.
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*
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* in params[0].value.a: rollback index slot
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* in params[1].value.a: upper 32 bits of rollback index
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* in params[1].value.b: lower 32 bits of rollback index
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*/
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#define TA_AVB_CMD_WRITE_ROLLBACK_INDEX 1
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/*
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* Gets the lock state of the device.
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*
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* out params[0].value.a: lock state
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*/
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#define TA_AVB_CMD_READ_LOCK_STATE 2
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/*
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* Sets the lock state of the device.
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*
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* If the lock state is changed all rollback slots will be reset to 0
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*
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* in params[0].value.a: lock state
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*/
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#define TA_AVB_CMD_WRITE_LOCK_STATE 3
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/*
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* Reads a persistent value corresponding to the given name.
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*
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* in params[0].u.memref: persistent value name
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* out params[1].u.memref: read persistent value buffer
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*/
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#define TA_AVB_CMD_READ_PERSIST_VALUE 4
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/*
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* Writes a persistent value corresponding to the given name.
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*
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* in params[0].u.memref: persistent value name
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* in params[1].u.memref: persistent value buffer to write
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*/
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#define TA_AVB_CMD_WRITE_PERSIST_VALUE 5
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#endif /* __TA_AVB_H */
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