Passing boot logs to Linux?

[Dragan Simic]

On 2023-12-20 05:45, Sean Anderson wrote:
> On 12/19/23 23:11, Simon Glass wrote:
>> On Tue, 19 Dec 2023 at 13:15, Csókás Bence <Csokas.Bence at prolan.hu> 
>> wrote:
>>> Is passing the U-Boot boot log to Linux supported yet? We are working
>>> with a third-party solution, which works, but is a bit hacky, so I 
>>> was
>>> wondering if an official solution has been merged yet.
>>> 
>>> I saw that there was an option CONFIG_CONSOLE_RECORD that saves
>>> everything to a membuff, but I don't know if that can be exported to
>>> Linux yet. And if not in the tree yet, would such a patch be welcome?
>> 
>> Not yet, but yes I would like to see this.
> 
> I think most of the infrastructure is already here. We could use either
> console recording (as mentioned above), which is more complete, or a 
> new
> LOG_DRIVER (which would have the advantage of omitting things like 
> countdowns).
> 
> In terms of sending things to Linux, I think the natural choice would 
> be pstore,
> which we already have a parser for.

Yes, using pstore would make sense.

As a note, I'm willing to work on this, if Csókás actually doesn't pick 
it up.  I'll be so happy to see this feature reaching all kinds of 
boards and devices.