Passing boot logs to Linux?

Sean Anderson seanga2 at gmail.com
Wed Dec 20 05:45:48 CET 2023


On 12/19/23 23:11, Simon Glass wrote:
> Hi Csókás,
> 
> On Tue, 19 Dec 2023 at 13:15, Csókás Bence <Csokas.Bence at prolan.hu> wrote:
>>
>> Hi!
>>
>> 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.

--Sean


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