From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfgang Denk Date: Fri, 20 Mar 2020 11:35:53 +0100 Subject: [PATCH v3 0/3] Add command to display or save Linux PStore dumps In-Reply-To: <03674974-2a2c-3804-ce02-4f3d38ff01d9@collabora.com> References: <20200319175737.10166-1-frederic.danis@collabora.com> <20200319203724.4492124003E@gemini.denx.de> <20200320080842.7DF4524003E@gemini.denx.de> <03674974-2a2c-3804-ce02-4f3d38ff01d9@collabora.com> Message-ID: <20200320103553.9F0C624003E@gemini.denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Dear Fr?d?ric, In message <03674974-2a2c-3804-ce02-4f3d38ff01d9@collabora.com> you wrote: > > > I understand what Linus has is one-way, only focussing on crash > > dump, i. e. it does not allow to pass information from U-Boot to Linux? > > Yes, currently it is not possible to pass information from U-Boot to Linux. > But, PStore does not only store crash dump, but also console, ftrace and > user space logs. > > It may be possible to add a "bootloader" storage space to PStore. This does not make much sense to me. We should not try to push any possible functionality into U-Boot just because we can. U-Boot is a boot loader, and should only contain necessary functionality and things, that are impossible or difficult to solve in other ways. I would much rather see the opposite direction working (again): being able to pass information from U-Boot to Linux kernel and further into Linux user land in a standard way. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de Panic, n.: The second time you can't do it the first time.