| commit | faf057e54e93b403882180446cc04f1af9065a1a | [log] [tgz] |
|---|---|---|
| author | Cindy Chen <chencindy@google.com> | Wed Dec 02 09:41:17 2020 -0800 |
| committer | cindychip <cindy.chen0316@gmail.com> | Thu Dec 03 11:11:22 2020 -0800 |
| tree | c560111071cd00fb000100c1cbf5b82a124b9a56 | |
| parent | 46e01b59c3d4ad7a59d594bdacf18e04fed52014 [diff] |
[dv/otp] Support SW partition write lock (write digest) This PR has two main changes: 1. Update function `is_secret`. Current is_secret function returns 1 when it is NOT secret partition. This logic is not correct and this PR fixed it. 2. Support lock SW partitions by using DAI to write digest. Because the digest check is depend on SW (OTP won't check if the digest is correct), this PR writes random data to SW partition digests. Also there is an issue related to this PR #4363, so in this PR, scb only checks digest_0 for sw partitions. Signed-off-by: Cindy Chen <chencindy@google.com>
OpenTitan is an open source silicon Root of Trust (RoT) project. OpenTitan will make the silicon RoT design and implementation more transparent, trustworthy, and secure for enterprises, platform providers, and chip manufacturers. OpenTitan is administered by lowRISC CIC as a collaborative project to produce high quality, open IP for instantiation as a full-featured product. See the OpenTitan site and OpenTitan docs for more information about the project.
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