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=-3.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 59C16C4332F for ; Wed, 22 Sep 2021 17:05:05 +0000 (UTC) Received: from shelob.surriel.com (shelob.surriel.com [96.67.55.147]) (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 F1E5D61350 for ; Wed, 22 Sep 2021 17:05:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org F1E5D61350 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=vt.edu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernelnewbies.org Received: from localhost ([::1] helo=shelob.surriel.com) by shelob.surriel.com with esmtp (Exim 4.94.2) (envelope-from ) id 1mT5fr-0005Pt-61; Wed, 22 Sep 2021 13:04:47 -0400 Received: from mail-qt1-x82b.google.com ([2607:f8b0:4864:20::82b]) by shelob.surriel.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1mT5fq-0005PZ-2E for kernelnewbies@kernelnewbies.org; Wed, 22 Sep 2021 13:04:46 -0400 Received: by mail-qt1-x82b.google.com with SMTP id x9so3423526qtv.0 for ; Wed, 22 Sep 2021 10:04:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vt-edu.20210112.gappssmtp.com; s=20210112; h=sender:from:to:cc:subject:in-reply-to:references:mime-version :content-transfer-encoding:date:message-id; bh=6JcngKoDG5jqnJ1fIao7lmSeubN447aEqUi3EpaUL3E=; b=XyUFqXnfvTfD2OgQ6mHQnP5JH9g5KuFkDxC8rda4HF3phdOns9hxErvrR8i+BtMdKC dTuJAmr+HY5Sq7t7iwiLYRPHyfLA7NHvOJgAQczdmHRlHPTGj2n2oHmkmZVCUJHkbA6V JgmJa7XpnD/WJnnh0OdArWKBOSNtqUw2nGAMgRRIIHlJu3EUTPwE7CmLW7+z9G/7OlF5 ENLiZS51lgjxzEYYZTAL5Ys5pmx3aeSR7LZJ2al4GeK7GDe+tbHECx/fjLW1Br5WWWKo OYZBIurr5ToJcqUJoejXj0T67LWetuiHT/3p3JQN9y9e245vOsWDCS3Soyg32f483gU5 XrVg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:sender:from:to:cc:subject:in-reply-to:references :mime-version:content-transfer-encoding:date:message-id; bh=6JcngKoDG5jqnJ1fIao7lmSeubN447aEqUi3EpaUL3E=; b=SAcdYUJegp7fR8vnOfENEcfhJ8sH5YC/haS0vbfKWnM0EeMHkgP/ThLYQqotC5NDCv i91DXXVJqXs2aX9gbrJlUoPw8oP3yykB8QqRpcAbbLbs4yKGC1H1yL/Bxow84MXKf5PX T1aXXRuP5vM4WWGuiQqO/XVZqOoYOHHklgpx/wV/2a/NLdifOFNDpLI6YG111WGwR43f y+Z9fELGQGrB3AJWRa3Dkq2jtL3E6/lpjh3JMQ3jVrzqK5YVSfOfX3v9ewLLg6ntI+i1 7ZSZHT0/N5MiEbBhywwSH0nqLbAKq2cahfYfoHSENGQwrfxEtC6JtaPeVeAn6VqMGPzY vpZw== X-Gm-Message-State: AOAM5336QiK+i0n3z8ZcLERW8vhiSSJ5m2ocWKezItAdRTU216WgNxan o0/8kqfwxmezeo71iaqAQf1CXg== X-Google-Smtp-Source: ABdhPJz5dFTbW0vrJKt198FWGFJOSkef3kpftIwcH0YWNiBhFMQNzCU+/d70jN0edB2YoAopSsiv1Q== X-Received: by 2002:a05:622a:4d4:: with SMTP id q20mr215213qtx.271.1632330281728; Wed, 22 Sep 2021 10:04:41 -0700 (PDT) Received: from turing-police ([2601:5c0:c380:d61::359]) by smtp.gmail.com with ESMTPSA id z21sm2132877qki.15.2021.09.22.10.04.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 22 Sep 2021 10:04:40 -0700 (PDT) From: "Valdis Kl=?utf-8?Q?=c4=93?=tnieks" X-Google-Original-From: "Valdis Kl=?utf-8?Q?=c4=93?=tnieks" X-Mailer: exmh version 2.10.0-pre 07/05/2021 with nmh-1.7+dev To: Ruben Safir Subject: Re: efivars In-Reply-To: <968231e8-69f3-872b-7451-4439744b2d4f@mrbrklyn.com> References: <20210922062222.GA6060@www2.mrbrklyn.com> <968231e8-69f3-872b-7451-4439744b2d4f@mrbrklyn.com> Mime-Version: 1.0 Date: Wed, 22 Sep 2021 13:04:40 -0400 Message-ID: <163752.1632330280@turing-police> Cc: Greg KH , kernelnewbies@kernelnewbies.org X-BeenThere: kernelnewbies@kernelnewbies.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Learn about the Linux kernel List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============0584013515242279849==" Errors-To: kernelnewbies-bounces@kernelnewbies.org --===============0584013515242279849== Content-Type: multipart/signed; boundary="==_Exmh_1632330279_29054P"; micalg=pgp-sha256; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit --==_Exmh_1632330279_29054P Content-Type: text/plain; charset=us-ascii On Wed, 22 Sep 2021 11:58:55 -0400, Ruben Safir said: > OS's shouldn't need anything from a boot loader. That ties the OS to > the bootloader completely without need. You might want to read Documentation/x86/boot.rst and think about what the OS is expecting to get passed from the boot loader, and then think about how you would deal with the situation if that information wasn't passed along. And oddly enough, your OS isn't tied to the boot loader. In fact, any of the following will work: Assigned boot loader ids (hexadecimal): == ======================================= 0 LILO (0x00 reserved for pre-2.00 bootloader) 1 Loadlin 2 bootsect-loader (0x20, all other values reserved) 3 Syslinux 4 Etherboot/gPXE/iPXE 5 ELILO 7 GRUB 8 U-Boot 9 Xen A Gujin B Qemu C Arcturus Networks uCbootloader D kexec-tools E Extended (see ext_loader_type) F Special (0xFF = undefined) 10 Reserved 11 Minimal Linux Bootloader 12 OVMF UEFI virtualization stack == ======================================= And that's just the *documented* ones. So, as you were saying? --==_Exmh_1632330279_29054P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Comment: Exmh version 2.9.0 11/07/2018 iQEcBAEBCAAGBQJhS2InAAoJEI0DS38y7CIcegwH/0BWlrIKGBIxbv0WU4DVa+u4 Clk0aus+FmwDtFfUEecX33jR7wvRa0u27LRNjYClss/OLETGrfllwuOX8O20q2Tp 1jXma1WJS54V3+9jKr3+ru2Nyz4/B2vheIxDOPd0s1LX6hSbHQ5ene2sqaOg6yqE 4jAHHZ/sCO3EyniOA5pjkqhuLSjvslHpz/SM/2DQOu6ef7LrM3B77LsWZKmNs2IP DqYgNLQD4HHv3fFbfJDAIp3P9TR5XBG/njyIOnT231w9EeGLFOkNWvWt9hxF/8f3 s9OGm5fOnsXF9oJGbWOKRj3/QIRuZ+RYN/Cy4byCbqNK/Sui68Pp3Ng8NbezKsU= =+X1K -----END PGP SIGNATURE----- --==_Exmh_1632330279_29054P-- --===============0584013515242279849== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies --===============0584013515242279849==--