From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9848CC3A5A7 for ; Wed, 4 Sep 2019 11:53:22 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1E6F82186A for ; Wed, 4 Sep 2019 11:53:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1E6F82186A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 46NhzM5hdNzDqv1 for ; Wed, 4 Sep 2019 21:53:19 +1000 (AEST) Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 46NhxR4LC8zDqHJ for ; Wed, 4 Sep 2019 21:51:39 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=ellerman.id.au Received: by ozlabs.org (Postfix) id 46NhxR3kdfz9sDQ; Wed, 4 Sep 2019 21:51:39 +1000 (AEST) Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 46NhxR06zlz9sDB; Wed, 4 Sep 2019 21:51:38 +1000 (AEST) From: Michael Ellerman To: Hari Bathini , linuxppc-dev Subject: Re: [PATCH v5 19/31] powerpc/fadump: Update documentation about OPAL platform support In-Reply-To: <156630278711.8896.9799921270260662672.stgit@hbathini.in.ibm.com> References: <156630261682.8896.3418665808003586786.stgit@hbathini.in.ibm.com> <156630278711.8896.9799921270260662672.stgit@hbathini.in.ibm.com> Date: Wed, 04 Sep 2019 21:51:38 +1000 Message-ID: <87y2z4p9dh.fsf@mpe.ellerman.id.au> MIME-Version: 1.0 Content-Type: text/plain X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Ananth N Mavinakayanahalli , Mahesh J Salgaonkar , Vasant Hegde , Oliver , Nicholas Piggin , Daniel Axtens Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hari Bathini writes: > With FADump support now available on both pseries and OPAL platforms, > update FADump documentation with these details. > > Signed-off-by: Hari Bathini > --- > Documentation/powerpc/firmware-assisted-dump.rst | 104 +++++++++++++--------- > 1 file changed, 63 insertions(+), 41 deletions(-) > > diff --git a/Documentation/powerpc/firmware-assisted-dump.rst b/Documentation/powerpc/firmware-assisted-dump.rst > index d912755..2c3342c 100644 > --- a/Documentation/powerpc/firmware-assisted-dump.rst > +++ b/Documentation/powerpc/firmware-assisted-dump.rst > @@ -72,7 +72,8 @@ as follows: > normal. > > - The freshly booted kernel will notice that there is a new > - node (ibm,dump-kernel) in the device tree, indicating that > + node (ibm,dump-kernel on PSeries or ibm,opal/dump/mpipl-boot > + on OPAL platform) in the device tree, indicating that > there is crash data available from a previous boot. During > the early boot OS will reserve rest of the memory above > boot memory size effectively booting with restricted memory > @@ -96,7 +97,9 @@ as follows: > > Please note that the firmware-assisted dump feature > is only available on Power6 and above systems with recent > -firmware versions. Notice how "recent" has bit rotted. > +firmware versions on PSeries (PowerVM) platform and Power9 > +and above systems with recent firmware versions on PowerNV > +(OPAL) platform. Can we say something more helpful here, ie. "recent" is not very useful. AFAIK it's actually wrong, there isn't a released firmware with the support yet at all, right? Given all the relevant firmware is open source can't we at least point to a commit or release tag or something? cheers