docs/designs/psu-firmware-update.md

78 It will re-use the current interfaces to upload, verify, and activate the image.
90 3. There will be a new service that implements the [Activation][5] interface to
92    - The service will be started by default when BMC starts;
93    - On start, the service will check the PSU's existing firmware and create the
97    - When a new object with PSU `VersionPurpose` is added, the service will
101    - The service will have a configuration file to describe the PSU model and
103    - The service will find the matched vendor-specific tool to perform the code
105      `psu-update@foo.service` which executes `foo psu.bin`, the service will
111      the signature will be saved to a pre-defined directory in read-write
116 5. When the vendor-specific tool returns errors, the PSU update will be aborted
125 updated to the PSU. This will be done by the same service described above.
127 1. On start, the service will check the PSU image, model and version in its
135      checked and a newer version will be selected to compare with the PSU
137 3. If PSU update is needed, the service will find the matched vendor-specific
139 4. The following process will be the same as [Update by API].
145 updated. This will be done by the same service described above.
147 1. On start, the service will subscribe to the PropertiesChanged signal to the
151    PropertiesChanged event occurs), the service will check the new PSU's model
153 3. If yes, the service will find the matched vendor-specific tool to perform the
155 4. The following process will be the same as [Update by API].
162 vendor-specific tools. It will be a bit simpler but loses the unified interface
163 provided by OpenBMC's existing [software update interface][1], and thus it will
179 make it optional or remove this additional string, then the implementation will
188 interfaces. The newly introduced PSU firmware update service will be a new
189 service that implements existing [Activation][5] interface. There will be new
203 - Verify the PSU code update will fail if the vendor-specific tool fails on