| commit | 806a4630a2fd256a7b775a0ea0df29aaa9cbeb57 | [log] [tgz] |
|---|---|---|
| author | Rupert Swarbrick <rswarbrick@lowrisc.org> | Fri Apr 08 15:48:39 2022 +0100 |
| committer | Rupert Swarbrick <rswarbrick@gmail.com> | Wed Apr 13 10:10:54 2022 +0100 |
| tree | 33f0b7f73a3a2faa9198461338ba5839b9240610 | |
| parent | 913a02d91a7c51fc4b8397cc73affbce0ca3ad23 [diff] |
[otbn,rtl] Pass an escalation signal to start/stop controller Otherwise, an escalation that happens when we're in e.g. state OtbnStartStopStateUrndRefresh leaves us in a weird half-running state. The rest of OTBN knows that we're stopping immediately in this case: make sure that the start/stop controller knows too! The other change with this PR is that we change the OtbnStartStopStateError state to OtbnStartStopStateLocked. An FSM glitch will still ping state_error_o for a cycle, causing a fatal alert, but now we have a nice terminal state for local escalation. Signed-off-by: Rupert Swarbrick <rswarbrick@lowrisc.org>
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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