Read Firmware Versions

Patrick Williams patrick at stwcx.xyz
Tue Sep 22 01:23:37 AEST 2020


On Mon, Sep 21, 2020 at 02:12:55PM +0000, Jayashree D wrote:
> We are working on a platform which has multi host and each host have firmware versions such as CPLD, ME, BIOS, Bridge IC and VR.
> We have to display it in dbus objects.
> Can you please provide your comments on which dbus objects it will be suitable to store all firmware versions.
> 
> Also in phosphor-dbus-interfaces, I am seeing "System.interface.yaml" in /xyz/openbmc_project/Inventory/Item/.
> Whether it will be suitable to store all the firmware versions (/xyz/openbmc_project/Inventory/Item/System/HostN).

All software versions should be modelled per [1].  The sub-section [2]
tells how to associate an inventory object to a software version (to
show which BIOS version a specific host card is running for example).

I don't think 'Inventory.Item.System' is intended to represent a single
host in a multi-host system; 'System' would represent the entire
chassis.  You may want to use 'Chassis' or 'Board' to model a
sub-assembly.


1. https://github.com/openbmc/phosphor-dbus-interfaces/tree/master/xyz/openbmc_project/Software
2. https://github.com/openbmc/phosphor-dbus-interfaces/tree/master/xyz/openbmc_project/Software#find-all-software-versions-on-a-managed-element

-- 
Patrick Williams
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