[OpenPower-Firmware] [POWER8] OCC Firdata over IPMI

[Andrew Jeffery]

Hi Artem,

Snipping somewhat, I'll let Doug dig into the specifics of the OCC issue as he
implemented the IPMI HIOMAP support for it.

On Wed, 22 May 2019, at 17:13, Artem Senichev wrote:

> We have HIOMAP support for our bundle (OpenBMC+OpenPOWER), it looks like
> the entire solution works fine except the OCC project, it is the last
> component that directly writes data to the PNOR flash.
> 

Great to hear the rest works for you. Just for your awareness you may need to
pick up a couple of patches depending on what firmwares you're running: [1]
to fix a data write corruption issue in skiboot and [2] to resolve a memory leak
in OpenBMC. These are the critical issues, but there are further sets of skiboot
and OpenBMC patches that I recommend to avoid lockups. I can point you to
them if necessary.

On the skiboot side, master contains all the fixes we have needed so far, and
everything except for [3] is contained in the v6.3 tag. OpenBMC master has
all its respective fixes included.

Bit of a tangent, but I hope it helps.

Andrew

[1] https://github.com/open-power/skiboot/commit/7f291166283f
[2] https://github.com/openbmc/hiomapd/commit/fac3689e77d3
[3] https://github.com/open-power/skiboot/commit/f01cd777adb1