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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF2C0C433EF for ; Mon, 7 Mar 2022 18:40:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244833AbiCGSlQ (ORCPT ); Mon, 7 Mar 2022 13:41:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244834AbiCGSlL (ORCPT ); Mon, 7 Mar 2022 13:41:11 -0500 Received: from mail-ej1-x629.google.com (mail-ej1-x629.google.com [IPv6:2a00:1450:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94BFE83002 for ; Mon, 7 Mar 2022 10:40:15 -0800 (PST) Received: by mail-ej1-x629.google.com with SMTP id gb39so33914922ejc.1 for ; Mon, 07 Mar 2022 10:40:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=Yvj/Y0KMt9OVE/6hi/oWDvNcBCLjB9hWP/8iIxL+Tjo=; b=Kq2/ZdORQ7Z+x6uRxBOXq8UsPu3bx1kq/viB3BjbjsvzpCVUWGHa78Ry9AzHfyF/DB 1rBm4RrQZvocJRm1h3DKFV/cqGKQ339p7bIl/tqV0PnmbFQh6OPSDXQzmF34juoL3VLi hxa5nN77RzPtUvwLFP1cWnWHa4gsyBgRhbh7qfnyZ2j049UCli6iqyyRuvhxWz+GS7lu cdc7xEiEGEnQRSYhZd0tcHhTEm8zHM5j8eHClnBSzEAn9IjW4SR5hYV/REHpOX4+eWwh SUhvUUWUh3qTcLRAd1ViHrYp0sq63lC6vS5/34dVGaMYKsHaTLLG0HQW2O70XEricT0J 39Iw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=Yvj/Y0KMt9OVE/6hi/oWDvNcBCLjB9hWP/8iIxL+Tjo=; b=Q37uGmc7C9bapIa792Q5xWEs4bMnfna4ECSitmLCt0A+RZRrcRO37QgJWr1N8v2vD7 s94Uplsowv581khxAn6KswdJKdLBoCBWtIRp8alZB4Dhq/G9ivaxqf00YzUodSmtf5x8 ki5maMkOWSYDGvonnf/5I+BXWutseRr2TP+8v6fSf0JjFfaWdCmziXapqQ4kzfgXdKEA ppVhpS3FXlYjOTuMDNDPJzLsHzVnBDFimeUIbQbKz3T8jC9gpJHMtEr1KIwv6DdxlYpE t/lFdL0iRC9h+ls1nVfY7yQJbMRhQUSZIl9sTjMVXTnZ8Ff0eSMGhB7prbrTqxDLiJ79 fdtQ== X-Gm-Message-State: AOAM532bn1SZ9c8cMyxZdT4YgDbM5AAjtRPxQJL/isikOGpf9ZLXExus ycyRgBUhvS5OQHx798VjqH8xhaHedGPSvA== X-Google-Smtp-Source: ABdhPJw6w54WXXkvrkiQ1WMXbKsgiqsevEpqns90W8ZCA46c2MXKop5DCg7S0cCQFGokeYODMyMOfQ== X-Received: by 2002:a17:907:97c5:b0:6da:c285:44f5 with SMTP id js5-20020a17090797c500b006dac28544f5mr10193136ejc.208.1646678413033; Mon, 07 Mar 2022 10:40:13 -0800 (PST) Received: from pswork ([62.96.250.75]) by smtp.gmail.com with ESMTPSA id u9-20020a170906124900b006ce88a505a1sm5151639eja.179.2022.03.07.10.40.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Mar 2022 10:40:12 -0800 (PST) Date: Mon, 7 Mar 2022 19:40:11 +0100 From: Padmanabha Srinivasaiah To: mhiramat@kernel.org Cc: rostedt@goodmis.org, linux-kernel@vger.kernel.org Subject: tracing : bootconfig : Early boot config for non intrd systems Message-ID: <20220307184011.GA2570@pswork> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Masami Hiramatsu, Thanks for detailed explanation on boot time tracing using early boot configuration file. https://linuxfoundation.org/wp-content/uploads/boottrace-LF-live-2021-update.pdf Also for https://lwn.net/Articles/806002/. Latter link also states we can embed boot config into the kernel image for non intrd based system. I tried searching mailing lists not able to find pointer for same. A hint/pointer on how-to will be very helpful. Thanks and Regards, Padmanabha.S